wpa_supplicant/p2p_supplicant.c

   1 /*
   2  * wpa_supplicant - P2P
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "includes.h"
  11
  12 #include "common.h"
  13 #include "eloop.h"
  14 #include "common/ieee802_11_common.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "wps/wps_i.h"
  18 #include "p2p/p2p.h"
  19 #include "ap/hostapd.h"
  20 #include "ap/ap_config.h"
  21 #include "ap/sta_info.h"
  22 #include "ap/ap_drv_ops.h"
  23 #include "ap/wps_hostapd.h"
  24 #include "ap/p2p_hostapd.h"
  25 #include "ap/dfs.h"
  26 #include "eapol_supp/eapol_supp_sm.h"
  27 #include "rsn_supp/wpa.h"
  28 #include "wpa_supplicant_i.h"
  29 #include "driver_i.h"
  30 #include "ap.h"
  31 #include "config_ssid.h"
  32 #include "config.h"
  33 #include "notify.h"
  34 #include "scan.h"
  35 #include "bss.h"
  36 #include "offchannel.h"
  37 #include "wps_supplicant.h"
  38 #include "p2p_supplicant.h"
  39 #include "wifi_display.h"
  40
  41
  42 /*
  43  * How many times to try to scan to find the GO before giving up on join
  44  * request.
  45  */
  46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  47
  48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
  49
  50 /**
  51  * Defines time interval in seconds when a GO needs to evacuate a frequency that
  52  * it is currently using, but is no longer valid for P2P use cases.
  53  */
  54 #define P2P_GO_FREQ_CHANGE_TIME 5
  55
  56 /**
  57  * Defines CSA parameters which are used when GO evacuates the no longer valid
  58  * channel (and if the driver supports channel switch).
  59  */
  60 #define P2P_GO_CSA_COUNT 7
  61 #define P2P_GO_CSA_BLOCK_TX 0
  62
  63 #ifndef P2P_MAX_CLIENT_IDLE
  64 /*
  65  * How many seconds to try to reconnect to the GO when connection in P2P client
  66  * role has been lost.
  67  */
  68 #define P2P_MAX_CLIENT_IDLE 10
  69 #endif /* P2P_MAX_CLIENT_IDLE */
  70
  71 #ifndef P2P_MAX_INITIAL_CONN_WAIT
  72 /*
  73  * How many seconds to wait for initial 4-way handshake to get completed after
  74  * WPS provisioning step or after the re-invocation of a persistent group on a
  75  * P2P Client.
  76  */
  77 #define P2P_MAX_INITIAL_CONN_WAIT 10
  78 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
  79
  80 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
  81 /*
  82  * How many seconds to wait for initial 4-way handshake to get completed after
  83  * WPS provisioning step on the GO. This controls the extra time the P2P
  84  * operation is considered to be in progress (e.g., to delay other scans) after
  85  * WPS provisioning has been completed on the GO during group formation.
  86  */
  87 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
  88 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
  89
  90 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
  91 /*
  92  * How many seconds to wait for initial 4-way handshake to get completed after
  93  * re-invocation of a persistent group on the GO when the client is expected
  94  * to connect automatically (no user interaction).
  95  */
  96 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
  97 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
  98
  99 #define P2P_MGMT_DEVICE_PREFIX          "p2p-dev-"
 100
 101 /*
 102  * How many seconds to wait to re-attempt to move GOs, in case previous attempt
 103  * was not possible.
 104  */
 105 #define P2P_RECONSIDER_GO_MOVE_DELAY 30
 106
 107 enum p2p_group_removal_reason {
 108         P2P_GROUP_REMOVAL_UNKNOWN,
 109         P2P_GROUP_REMOVAL_SILENT,
 110         P2P_GROUP_REMOVAL_FORMATION_FAILED,
 111         P2P_GROUP_REMOVAL_REQUESTED,
 112         P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
 113         P2P_GROUP_REMOVAL_UNAVAILABLE,
 114         P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
 115         P2P_GROUP_REMOVAL_PSK_FAILURE,
 116         P2P_GROUP_REMOVAL_FREQ_CONFLICT,
 117         P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
 118 };
 119
 120
 121 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
 122 static struct wpa_supplicant *
 123 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
 124                          int go);
 125 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
 126                                const u8 *ssid, size_t ssid_len);
 127 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
 128                                 int *force_freq, int *pref_freq, int go,
 129                                 unsigned int *pref_freq_list,
 130                                 unsigned int *num_pref_freq);
 131 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
 132                                    const u8 *ssid, size_t ssid_len);
 133 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
 134 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
 135                          const u8 *dev_addr, enum p2p_wps_method wps_method,
 136                          int auto_join, int freq,
 137                          const u8 *ssid, size_t ssid_len);
 138 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
 139 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
 140 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
 141 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
 142 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
 143                                              void *timeout_ctx);
 144 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
 145 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
 146                                        int group_added);
 147 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
 148 static void wpas_stop_listen(void *ctx);
 149 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
 150 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
 151 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 152                                         enum wpa_driver_if_type type);
 153 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
 154                                             int already_deleted);
 155 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
 156                                              struct wpa_used_freq_data *freqs,
 157                                              unsigned int num);
 158 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
 159 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
 160 static void
 161 wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
 162                              struct wpa_used_freq_data *freqs, unsigned int num,
 163                              enum wpas_p2p_channel_update_trig trig);
 164 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
 165
 166
 167 /*
 168  * Get the number of concurrent channels that the HW can operate, but that are
 169  * currently not in use by any of the wpa_supplicant interfaces.
 170  */
 171 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
 172 {
 173         int *freqs;
 174         int num, unused;
 175
 176         freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
 177         if (!freqs)
 178                 return -1;
 179
 180         num = get_shared_radio_freqs(wpa_s, freqs,
 181                                      wpa_s->num_multichan_concurrent);
 182         os_free(freqs);
 183
 184         unused = wpa_s->num_multichan_concurrent - num;
 185         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
 186         return unused;
 187 }
 188
 189
 190 /*
 191  * Get the frequencies that are currently in use by one or more of the virtual
 192  * interfaces, and that are also valid for P2P operation.
 193  */
 194 static unsigned int
 195 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
 196                           struct wpa_used_freq_data *p2p_freqs,
 197                           unsigned int len)
 198 {
 199         struct wpa_used_freq_data *freqs;
 200         unsigned int num, i, j;
 201
 202         freqs = os_calloc(wpa_s->num_multichan_concurrent,
 203                           sizeof(struct wpa_used_freq_data));
 204         if (!freqs)
 205                 return 0;
 206
 207         num = get_shared_radio_freqs_data(wpa_s, freqs,
 208                                           wpa_s->num_multichan_concurrent);
 209
 210         os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
 211
 212         for (i = 0, j = 0; i < num && j < len; i++) {
 213                 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
 214                         p2p_freqs[j++] = freqs[i];
 215         }
 216
 217         os_free(freqs);
 218
 219         dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
 220
 221         return j;
 222 }
 223
 224
 225 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
 226                                              int freq)
 227 {
 228         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 229                 return;
 230
 231         /* Use the wpa_s used to control the P2P Device operation */
 232         wpa_s = wpa_s->global->p2p_init_wpa_s;
 233
 234         if (wpa_s->conf->p2p_ignore_shared_freq &&
 235             freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
 236             wpas_p2p_num_unused_channels(wpa_s) > 0) {
 237                 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
 238                            freq);
 239                 freq = 0;
 240         }
 241         p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
 242 }
 243
 244
 245 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
 246                                       struct wpa_scan_results *scan_res)
 247 {
 248         size_t i;
 249
 250         if (wpa_s->p2p_scan_work) {
 251                 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
 252                 wpa_s->p2p_scan_work = NULL;
 253                 radio_work_done(work);
 254         }
 255
 256         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 257                 return;
 258
 259         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
 260                    (int) scan_res->num);
 261
 262         for (i = 0; i < scan_res->num; i++) {
 263                 struct wpa_scan_res *bss = scan_res->res[i];
 264                 struct os_reltime time_tmp_age, entry_ts;
 265                 const u8 *ies;
 266                 size_t ies_len;
 267
 268                 time_tmp_age.sec = bss->age / 1000;
 269                 time_tmp_age.usec = (bss->age % 1000) * 1000;
 270                 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
 271
 272                 ies = (const u8 *) (bss + 1);
 273                 ies_len = bss->ie_len;
 274                 if (bss->beacon_ie_len > 0 &&
 275                     !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
 276                     wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
 277                         wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
 278                                    MACSTR, MAC2STR(bss->bssid));
 279                         ies = ies + ies_len;
 280                         ies_len = bss->beacon_ie_len;
 281                 }
 282
 283
 284                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
 285                                          bss->freq, &entry_ts, bss->level,
 286                                          ies, ies_len) > 0)
 287                         break;
 288         }
 289
 290         p2p_scan_res_handled(wpa_s->global->p2p);
 291 }
 292
 293
 294 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
 295 {
 296         struct wpa_supplicant *wpa_s = work->wpa_s;
 297         struct wpa_driver_scan_params *params = work->ctx;
 298         int ret;
 299
 300         if (deinit) {
 301                 if (!work->started) {
 302                         wpa_scan_free_params(params);
 303                         return;
 304                 }
 305
 306                 wpa_s->p2p_scan_work = NULL;
 307                 return;
 308         }
 309
 310         if (wpa_s->clear_driver_scan_cache) {
 311                 wpa_printf(MSG_DEBUG,
 312                            "Request driver to clear scan cache due to local BSS flush");
 313                 params->only_new_results = 1;
 314         }
 315         ret = wpa_drv_scan(wpa_s, params);
 316         if (ret == 0)
 317                 wpa_s->curr_scan_cookie = params->scan_cookie;
 318         wpa_scan_free_params(params);
 319         work->ctx = NULL;
 320         if (ret) {
 321                 radio_work_done(work);
 322                 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
 323                 return;
 324         }
 325
 326         p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
 327         os_get_reltime(&wpa_s->scan_trigger_time);
 328         wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 329         wpa_s->own_scan_requested = 1;
 330         wpa_s->clear_driver_scan_cache = 0;
 331         wpa_s->p2p_scan_work = work;
 332 }
 333
 334
 335 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
 336                                           int freq)
 337 {
 338         if (wpa_s->global->p2p_24ghz_social_channels &&
 339             (freq == 2412 || freq == 2437 || freq == 2462)) {
 340                 /*
 341                  * Search all social channels regardless of whether these have
 342                  * been disabled for P2P operating channel use to avoid missing
 343                  * peers.
 344                  */
 345                 return 1;
 346         }
 347         return p2p_supported_freq(wpa_s->global->p2p, freq);
 348 }
 349
 350
 351 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
 352                          unsigned int num_req_dev_types,
 353                          const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
 354 {
 355         struct wpa_supplicant *wpa_s = ctx;
 356         struct wpa_driver_scan_params *params = NULL;
 357         struct wpabuf *wps_ie, *ies;
 358         unsigned int num_channels = 0;
 359         int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
 360         size_t ielen;
 361         u8 *n, i;
 362         unsigned int bands;
 363
 364         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 365                 return -1;
 366
 367         if (wpa_s->p2p_scan_work) {
 368                 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
 369                 return -1;
 370         }
 371
 372         params = os_zalloc(sizeof(*params));
 373         if (params == NULL)
 374                 return -1;
 375
 376         /* P2P Wildcard SSID */
 377         params->num_ssids = 1;
 378         n = os_malloc(P2P_WILDCARD_SSID_LEN);
 379         if (n == NULL)
 380                 goto fail;
 381         os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
 382         params->ssids[0].ssid = n;
 383         params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 384
 385         wpa_s->wps->dev.p2p = 1;
 386         wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
 387                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
 388                                         num_req_dev_types, req_dev_types);
 389         if (wps_ie == NULL)
 390                 goto fail;
 391
 392         switch (type) {
 393         case P2P_SCAN_SOCIAL:
 394                 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
 395                                           sizeof(int));
 396                 if (params->freqs == NULL)
 397                         goto fail;
 398                 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
 399                         if (wpas_p2p_search_social_channel(
 400                                     wpa_s, social_channels_freq[i]))
 401                                 params->freqs[num_channels++] =
 402                                         social_channels_freq[i];
 403                 }
 404                 params->freqs[num_channels++] = 0;
 405                 break;
 406         case P2P_SCAN_FULL:
 407                 break;
 408         case P2P_SCAN_SPECIFIC:
 409                 params->freqs = os_calloc(2, sizeof(int));
 410                 if (params->freqs == NULL)
 411                         goto fail;
 412                 params->freqs[0] = freq;
 413                 params->freqs[1] = 0;
 414                 break;
 415         case P2P_SCAN_SOCIAL_PLUS_ONE:
 416                 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
 417                                           sizeof(int));
 418                 if (params->freqs == NULL)
 419                         goto fail;
 420                 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
 421                         if (wpas_p2p_search_social_channel(
 422                                     wpa_s, social_channels_freq[i]))
 423                                 params->freqs[num_channels++] =
 424                                         social_channels_freq[i];
 425                 }
 426                 if (p2p_supported_freq(wpa_s->global->p2p, freq))
 427                         params->freqs[num_channels++] = freq;
 428                 params->freqs[num_channels++] = 0;
 429                 break;
 430         }
 431
 432         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
 433         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
 434         if (ies == NULL) {
 435                 wpabuf_free(wps_ie);
 436                 goto fail;
 437         }
 438         wpabuf_put_buf(ies, wps_ie);
 439         wpabuf_free(wps_ie);
 440
 441         bands = wpas_get_bands(wpa_s, params->freqs);
 442         p2p_scan_ie(wpa_s->global->p2p, ies, dev_id, bands);
 443
 444         params->p2p_probe = 1;
 445         n = os_malloc(wpabuf_len(ies));
 446         if (n == NULL) {
 447                 wpabuf_free(ies);
 448                 goto fail;
 449         }
 450         os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
 451         params->extra_ies = n;
 452         params->extra_ies_len = wpabuf_len(ies);
 453         wpabuf_free(ies);
 454
 455         radio_remove_works(wpa_s, "p2p-scan", 0);
 456         if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
 457                            params) < 0)
 458                 goto fail;
 459         return 0;
 460
 461 fail:
 462         wpa_scan_free_params(params);
 463         return -1;
 464 }
 465
 466
 467 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 468 {
 469         switch (p2p_group_interface) {
 470         case P2P_GROUP_INTERFACE_PENDING:
 471                 return WPA_IF_P2P_GROUP;
 472         case P2P_GROUP_INTERFACE_GO:
 473                 return WPA_IF_P2P_GO;
 474         case P2P_GROUP_INTERFACE_CLIENT:
 475                 return WPA_IF_P2P_CLIENT;
 476         }
 477
 478         return WPA_IF_P2P_GROUP;
 479 }
 480
 481
 482 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 483                                                   const u8 *ssid,
 484                                                   size_t ssid_len, int *go)
 485 {
 486         struct wpa_ssid *s;
 487
 488         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 489                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 490                         if (s->disabled != 0 || !s->p2p_group ||
 491                             s->ssid_len != ssid_len ||
 492                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 493                                 continue;
 494                         if (s->mode == WPAS_MODE_P2P_GO &&
 495                             s != wpa_s->current_ssid)
 496                                 continue;
 497                         if (go)
 498                                 *go = s->mode == WPAS_MODE_P2P_GO;
 499                         return wpa_s;
 500                 }
 501         }
 502
 503         return NULL;
 504 }
 505
 506
 507 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
 508 {
 509         struct wpa_supplicant *wpa_s = eloop_ctx;
 510         wpa_printf(MSG_DEBUG,
 511                    "P2P: Complete previously requested removal of %s",
 512                    wpa_s->ifname);
 513         wpas_p2p_disconnect(wpa_s);
 514 }
 515
 516
 517 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
 518                                       struct wpa_supplicant *calling_wpa_s)
 519 {
 520         if (calling_wpa_s == wpa_s && wpa_s &&
 521             wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 522                 /*
 523                  * The calling wpa_s instance is going to be removed. Do that
 524                  * from an eloop callback to keep the instance available until
 525                  * the caller has returned. This my be needed, e.g., to provide
 526                  * control interface responses on the per-interface socket.
 527                  */
 528                 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
 529                                            wpa_s, NULL) < 0)
 530                         return -1;
 531                 return 0;
 532         }
 533
 534         return wpas_p2p_disconnect(wpa_s);
 535 }
 536
 537
 538 /* Determine total number of clients in active groups where we are the GO */
 539 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
 540 {
 541         unsigned int count = 0;
 542         struct wpa_ssid *s;
 543
 544         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 545                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 546                         wpa_printf(MSG_DEBUG,
 547                                    "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
 548                                    wpa_s, s, s->disabled, s->p2p_group,
 549                                    s->mode);
 550                         if (!s->disabled && s->p2p_group &&
 551                             s->mode == WPAS_MODE_P2P_GO) {
 552                                 count += p2p_get_group_num_members(
 553                                         wpa_s->p2p_group);
 554                         }
 555                 }
 556         }
 557
 558         return count;
 559 }
 560
 561
 562 static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
 563 {
 564         return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
 565                 !wpa_s->current_ssid->disabled &&
 566                 wpa_s->current_ssid->p2p_group &&
 567                 wpa_s->current_ssid->p2p_persistent_group;
 568 }
 569
 570
 571 static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
 572 {
 573         return p2p_is_active_persistent_group(wpa_s) &&
 574                 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
 575 }
 576
 577
 578 /* Find an interface for a P2P group where we are the GO */
 579 static struct wpa_supplicant *
 580 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
 581 {
 582         struct wpa_supplicant *save = NULL;
 583
 584         if (!wpa_s)
 585                 return NULL;
 586
 587         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 588                 if (!p2p_is_active_persistent_go(wpa_s))
 589                         continue;
 590
 591                 /* Prefer a group with connected clients */
 592                 if (p2p_get_group_num_members(wpa_s->p2p_group))
 593                         return wpa_s;
 594                 save = wpa_s;
 595         }
 596
 597         /* No group with connected clients, so pick the one without (if any) */
 598         return save;
 599 }
 600
 601
 602 static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
 603 {
 604         return p2p_is_active_persistent_group(wpa_s) &&
 605                 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
 606 }
 607
 608
 609 /* Find an interface for a P2P group where we are the P2P Client */
 610 static struct wpa_supplicant *
 611 wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
 612 {
 613         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 614                 if (p2p_is_active_persistent_cli(wpa_s))
 615                         return wpa_s;
 616         }
 617
 618         return NULL;
 619 }
 620
 621
 622 /* Find a persistent group where we are the GO */
 623 static struct wpa_ssid *
 624 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
 625 {
 626         struct wpa_ssid *s;
 627
 628         for (s = wpa_s->conf->ssid; s; s = s->next) {
 629                 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
 630                         return s;
 631         }
 632
 633         return NULL;
 634 }
 635
 636
 637 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role,
 638                                 unsigned int *force_freq,
 639                                 unsigned int *pref_freq)
 640 {
 641         struct wpa_supplicant *wpa_s = ctx;
 642         struct wpa_ssid *s;
 643         u8 conncap = P2PS_SETUP_NONE;
 644         unsigned int owned_members = 0;
 645         struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
 646         struct wpa_ssid *persistent_go;
 647         int p2p_no_group_iface;
 648         unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
 649
 650         wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
 651
 652         if (force_freq)
 653                 *force_freq = 0;
 654         if (pref_freq)
 655                 *pref_freq = 0;
 656
 657         size = P2P_MAX_PREF_CHANNELS;
 658         if (force_freq && pref_freq &&
 659             !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
 660                                   (int *) pref_freq, 0, pref_freq_list, &size))
 661                 wpas_p2p_set_own_freq_preference(wpa_s,
 662                                                  *force_freq ? *force_freq :
 663                                                  *pref_freq);
 664
 665         /*
 666          * For non-concurrent capable devices:
 667          * If persistent_go, then no new.
 668          * If GO, then no client.
 669          * If client, then no GO.
 670          */
 671         go_wpa_s = wpas_p2p_get_go_group(wpa_s);
 672         if (go_wpa_s)
 673                 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
 674         persistent_go = wpas_p2p_get_persistent_go(wpa_s);
 675         p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
 676         cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
 677
 678         wpa_printf(MSG_DEBUG,
 679                    "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
 680                    go_wpa_s, owned_members, cli_wpa_s, persistent_go);
 681
 682         /* If not concurrent, restrict our choices */
 683         if (p2p_no_group_iface) {
 684                 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
 685
 686                 if (cli_wpa_s)
 687                         return P2PS_SETUP_NONE;
 688
 689                 if (go_wpa_s) {
 690                         if (role == P2PS_SETUP_CLIENT ||
 691                             incoming == P2PS_SETUP_GROUP_OWNER ||
 692                             p2p_client_limit_reached(go_wpa_s->p2p_group))
 693                                 return P2PS_SETUP_NONE;
 694
 695                         return P2PS_SETUP_GROUP_OWNER;
 696                 }
 697
 698                 if (persistent_go) {
 699                         if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
 700                                 if (!incoming)
 701                                         return P2PS_SETUP_GROUP_OWNER |
 702                                                 P2PS_SETUP_CLIENT;
 703                                 if (incoming == P2PS_SETUP_NEW) {
 704                                         u8 r;
 705
 706                                         if (os_get_random(&r, sizeof(r)) < 0 ||
 707                                             (r & 1))
 708                                                 return P2PS_SETUP_CLIENT;
 709                                         return P2PS_SETUP_GROUP_OWNER;
 710                                 }
 711                         }
 712                 }
 713         }
 714
 715         /* If a required role has been specified, handle it here */
 716         if (role && role != P2PS_SETUP_NEW) {
 717                 switch (incoming) {
 718                 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
 719                 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
 720                         /*
 721                          * Peer has an active GO, so if the role allows it and
 722                          * we do not have any active roles, become client.
 723                          */
 724                         if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
 725                             !cli_wpa_s)
 726                                 return P2PS_SETUP_CLIENT;
 727
 728                         /* fall through */
 729
 730                 case P2PS_SETUP_NONE:
 731                 case P2PS_SETUP_NEW:
 732                         conncap = role;
 733                         goto grp_owner;
 734
 735                 case P2PS_SETUP_GROUP_OWNER:
 736                         /*
 737                          * Must be a complimentary role - cannot be a client to
 738                          * more than one peer.
 739                          */
 740                         if (incoming == role || cli_wpa_s)
 741                                 return P2PS_SETUP_NONE;
 742
 743                         return P2PS_SETUP_CLIENT;
 744
 745                 case P2PS_SETUP_CLIENT:
 746                         /* Must be a complimentary role */
 747                         if (incoming != role) {
 748                                 conncap = P2PS_SETUP_GROUP_OWNER;
 749                                 goto grp_owner;
 750                         }
 751                         /* fall through */
 752
 753                 default:
 754                         return P2PS_SETUP_NONE;
 755                 }
 756         }
 757
 758         /*
 759          * For now, we only will support ownership of one group, and being a
 760          * client of one group. Therefore, if we have either an existing GO
 761          * group, or an existing client group, we will not do a new GO
 762          * negotiation, but rather try to re-use the existing groups.
 763          */
 764         switch (incoming) {
 765         case P2PS_SETUP_NONE:
 766         case P2PS_SETUP_NEW:
 767                 if (cli_wpa_s)
 768                         conncap = P2PS_SETUP_GROUP_OWNER;
 769                 else if (!owned_members)
 770                         conncap = P2PS_SETUP_NEW;
 771                 else if (incoming == P2PS_SETUP_NONE)
 772                         conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
 773                 else
 774                         conncap = P2PS_SETUP_CLIENT;
 775                 break;
 776
 777         case P2PS_SETUP_CLIENT:
 778                 conncap = P2PS_SETUP_GROUP_OWNER;
 779                 break;
 780
 781         case P2PS_SETUP_GROUP_OWNER:
 782                 if (!cli_wpa_s)
 783                         conncap = P2PS_SETUP_CLIENT;
 784                 break;
 785
 786         case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
 787         case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
 788                 if (cli_wpa_s)
 789                         conncap = P2PS_SETUP_GROUP_OWNER;
 790                 else {
 791                         u8 r;
 792
 793                         if (os_get_random(&r, sizeof(r)) < 0 ||
 794                             (r & 1))
 795                                 conncap = P2PS_SETUP_CLIENT;
 796                         else
 797                                 conncap = P2PS_SETUP_GROUP_OWNER;
 798                 }
 799                 break;
 800
 801         default:
 802                 return P2PS_SETUP_NONE;
 803         }
 804
 805 grp_owner:
 806         if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
 807             (!incoming && (conncap & P2PS_SETUP_NEW))) {
 808                 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
 809                         conncap &= ~P2PS_SETUP_GROUP_OWNER;
 810
 811                 s = wpas_p2p_get_persistent_go(wpa_s);
 812                 if (!s && !go_wpa_s && p2p_no_group_iface) {
 813                         p2p_set_intended_addr(wpa_s->global->p2p,
 814                                               wpa_s->p2p_mgmt ?
 815                                               wpa_s->parent->own_addr :
 816                                               wpa_s->own_addr);
 817                 } else if (!s && !go_wpa_s) {
 818                         if (wpas_p2p_add_group_interface(wpa_s,
 819                                                          WPA_IF_P2P_GROUP) < 0) {
 820                                 wpa_printf(MSG_ERROR,
 821                                            "P2P: Failed to allocate a new interface for the group");
 822                                 return P2PS_SETUP_NONE;
 823                         }
 824                         wpa_s->global->pending_group_iface_for_p2ps = 1;
 825                         p2p_set_intended_addr(wpa_s->global->p2p,
 826                                               wpa_s->pending_interface_addr);
 827                 }
 828         }
 829
 830         return conncap;
 831 }
 832
 833
 834 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
 835                                  enum p2p_group_removal_reason removal_reason)
 836 {
 837         struct wpa_ssid *ssid;
 838         char *gtype;
 839         const char *reason;
 840
 841         ssid = wpa_s->current_ssid;
 842         if (ssid == NULL) {
 843                 /*
 844                  * The current SSID was not known, but there may still be a
 845                  * pending P2P group interface waiting for provisioning or a
 846                  * P2P group that is trying to reconnect.
 847                  */
 848                 ssid = wpa_s->conf->ssid;
 849                 while (ssid) {
 850                         if (ssid->p2p_group && ssid->disabled != 2)
 851                                 break;
 852                         ssid = ssid->next;
 853                 }
 854                 if (ssid == NULL &&
 855                         wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
 856                 {
 857                         wpa_printf(MSG_ERROR, "P2P: P2P group interface "
 858                                    "not found");
 859                         return -1;
 860                 }
 861         }
 862         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 863                 gtype = "GO";
 864         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 865                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 866                 wpa_s->reassociate = 0;
 867                 wpa_s->disconnected = 1;
 868                 gtype = "client";
 869         } else
 870                 gtype = "GO";
 871
 872         if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
 873                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 874
 875         if (os_strcmp(gtype, "client") == 0) {
 876                 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 877                 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
 878                                                 wpa_s, NULL)) {
 879                         wpa_printf(MSG_DEBUG,
 880                                    "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
 881                         removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
 882                         eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
 883                                              wpa_s, NULL);
 884                 }
 885         }
 886
 887         if (wpa_s->cross_connect_in_use) {
 888                 wpa_s->cross_connect_in_use = 0;
 889                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
 890                                P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 891                                wpa_s->ifname, wpa_s->cross_connect_uplink);
 892         }
 893         switch (removal_reason) {
 894         case P2P_GROUP_REMOVAL_REQUESTED:
 895                 reason = " reason=REQUESTED";
 896                 break;
 897         case P2P_GROUP_REMOVAL_FORMATION_FAILED:
 898                 reason = " reason=FORMATION_FAILED";
 899                 break;
 900         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 901                 reason = " reason=IDLE";
 902                 break;
 903         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 904                 reason = " reason=UNAVAILABLE";
 905                 break;
 906         case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
 907                 reason = " reason=GO_ENDING_SESSION";
 908                 break;
 909         case P2P_GROUP_REMOVAL_PSK_FAILURE:
 910                 reason = " reason=PSK_FAILURE";
 911                 break;
 912         case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
 913                 reason = " reason=FREQ_CONFLICT";
 914                 break;
 915         default:
 916                 reason = "";
 917                 break;
 918         }
 919         if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
 920                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
 921                                P2P_EVENT_GROUP_REMOVED "%s %s%s",
 922                                wpa_s->ifname, gtype, reason);
 923         }
 924
 925         if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
 926                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
 927         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
 928                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
 929         if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
 930                                  wpa_s->p2pdev, NULL) > 0) {
 931                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
 932                            "timeout");
 933                 wpa_s->p2p_in_provisioning = 0;
 934                 wpas_p2p_group_formation_failed(wpa_s, 1);
 935         }
 936
 937         wpa_s->p2p_in_invitation = 0;
 938         eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
 939         eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
 940
 941         /*
 942          * Make sure wait for the first client does not remain active after the
 943          * group has been removed.
 944          */
 945         wpa_s->global->p2p_go_wait_client.sec = 0;
 946
 947         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 948                 struct wpa_global *global;
 949                 char *ifname;
 950                 enum wpa_driver_if_type type;
 951                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 952                         wpa_s->ifname);
 953                 global = wpa_s->global;
 954                 ifname = os_strdup(wpa_s->ifname);
 955                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 956                 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
 957                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
 958                 wpa_s = global->ifaces;
 959                 if (wpa_s && ifname)
 960                         wpa_drv_if_remove(wpa_s, type, ifname);
 961                 os_free(ifname);
 962                 return 1;
 963         }
 964
 965         /*
 966          * The primary interface was used for P2P group operations, so
 967          * need to reset its p2pdev.
 968          */
 969         wpa_s->p2pdev = wpa_s->parent;
 970
 971         if (!wpa_s->p2p_go_group_formation_completed) {
 972                 wpa_s->global->p2p_group_formation = NULL;
 973                 wpa_s->p2p_in_provisioning = 0;
 974         }
 975
 976         wpa_s->show_group_started = 0;
 977         os_free(wpa_s->go_params);
 978         wpa_s->go_params = NULL;
 979
 980         os_free(wpa_s->p2p_group_common_freqs);
 981         wpa_s->p2p_group_common_freqs = NULL;
 982         wpa_s->p2p_group_common_freqs_num = 0;
 983
 984         wpa_s->waiting_presence_resp = 0;
 985
 986         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 987         if (ssid && (ssid->p2p_group ||
 988                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 989                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 990                 int id = ssid->id;
 991                 if (ssid == wpa_s->current_ssid) {
 992                         wpa_sm_set_config(wpa_s->wpa, NULL);
 993                         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 994                         wpa_s->current_ssid = NULL;
 995                 }
 996                 /*
 997                  * Networks objects created during any P2P activities are not
 998                  * exposed out as they might/will confuse certain non-P2P aware
 999                  * applications since these network objects won't behave like
1000                  * regular ones.
1001                  *
1002                  * Likewise, we don't send out network removed signals for such
1003                  * network objects.
1004                  */
1005                 wpa_config_remove_network(wpa_s->conf, id);
1006                 wpa_supplicant_clear_status(wpa_s);
1007                 wpa_supplicant_cancel_sched_scan(wpa_s);
1008         } else {
1009                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
1010                            "found");
1011         }
1012         if (wpa_s->ap_iface)
1013                 wpa_supplicant_ap_deinit(wpa_s);
1014         else
1015                 wpa_drv_deinit_p2p_cli(wpa_s);
1016
1017         os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1018
1019         return 0;
1020 }
1021
1022
1023 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1024                                      u8 *go_dev_addr,
1025                                      const u8 *ssid, size_t ssid_len)
1026 {
1027         struct wpa_bss *bss;
1028         const u8 *bssid;
1029         struct wpabuf *p2p;
1030         u8 group_capab;
1031         const u8 *addr;
1032
1033         if (wpa_s->go_params)
1034                 bssid = wpa_s->go_params->peer_interface_addr;
1035         else
1036                 bssid = wpa_s->bssid;
1037
1038         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
1039         if (bss == NULL && wpa_s->go_params &&
1040             !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1041                 bss = wpa_bss_get_p2p_dev_addr(
1042                         wpa_s, wpa_s->go_params->peer_device_addr);
1043         if (bss == NULL) {
1044                 u8 iface_addr[ETH_ALEN];
1045                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1046                                            iface_addr) == 0)
1047                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1048         }
1049         if (bss == NULL) {
1050                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1051                            "group is persistent - BSS " MACSTR " not found",
1052                            MAC2STR(bssid));
1053                 return 0;
1054         }
1055
1056         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1057         if (p2p == NULL)
1058                 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1059                                                          P2P_IE_VENDOR_TYPE);
1060         if (p2p == NULL) {
1061                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1062                            "group is persistent - BSS " MACSTR
1063                            " did not include P2P IE", MAC2STR(bssid));
1064                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1065                             (u8 *) (bss + 1), bss->ie_len);
1066                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1067                             ((u8 *) bss + 1) + bss->ie_len,
1068                             bss->beacon_ie_len);
1069                 return 0;
1070         }
1071
1072         group_capab = p2p_get_group_capab(p2p);
1073         addr = p2p_get_go_dev_addr(p2p);
1074         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1075                    "group_capab=0x%x", group_capab);
1076         if (addr) {
1077                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1078                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1079                            MAC2STR(addr));
1080         } else
1081                 os_memset(go_dev_addr, 0, ETH_ALEN);
1082         wpabuf_free(p2p);
1083
1084         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1085                    "go_dev_addr=" MACSTR,
1086                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1087
1088         return !!(group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP);
1089 }
1090
1091
1092 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1093                                            struct wpa_ssid *ssid,
1094                                            const u8 *go_dev_addr)
1095 {
1096         struct wpa_ssid *s;
1097         int changed = 0;
1098
1099         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1100                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1101         for (s = wpa_s->conf->ssid; s; s = s->next) {
1102                 if (s->disabled == 2 &&
1103                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1104                     s->ssid_len == ssid->ssid_len &&
1105                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1106                         break;
1107         }
1108
1109         if (s) {
1110                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1111                            "entry");
1112                 if (ssid->passphrase && !s->passphrase)
1113                         changed = 1;
1114                 else if (ssid->passphrase && s->passphrase &&
1115                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
1116                         changed = 1;
1117         } else {
1118                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1119                            "entry");
1120                 changed = 1;
1121                 s = wpa_config_add_network(wpa_s->conf);
1122                 if (s == NULL)
1123                         return -1;
1124
1125                 /*
1126                  * Instead of network_added we emit persistent_group_added
1127                  * notification. Also to keep the defense checks in
1128                  * persistent_group obj registration method, we set the
1129                  * relevant flags in s to designate it as a persistent group.
1130                  */
1131                 s->p2p_group = 1;
1132                 s->p2p_persistent_group = 1;
1133                 wpas_notify_persistent_group_added(wpa_s, s);
1134                 wpa_config_set_network_defaults(s);
1135         }
1136
1137         s->p2p_group = 1;
1138         s->p2p_persistent_group = 1;
1139         s->disabled = 2;
1140         s->bssid_set = 1;
1141         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1142         s->mode = ssid->mode;
1143         s->auth_alg = WPA_AUTH_ALG_OPEN;
1144         s->key_mgmt = WPA_KEY_MGMT_PSK;
1145         s->proto = WPA_PROTO_RSN;
1146         s->pbss = ssid->pbss;
1147         s->pairwise_cipher = ssid->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
1148         s->export_keys = 1;
1149         if (ssid->passphrase) {
1150                 os_free(s->passphrase);
1151                 s->passphrase = os_strdup(ssid->passphrase);
1152         }
1153         if (ssid->psk_set) {
1154                 s->psk_set = 1;
1155                 os_memcpy(s->psk, ssid->psk, 32);
1156         }
1157         if (s->passphrase && !s->psk_set)
1158                 wpa_config_update_psk(s);
1159         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1160                 os_free(s->ssid);
1161                 s->ssid = os_malloc(ssid->ssid_len);
1162         }
1163         if (s->ssid) {
1164                 s->ssid_len = ssid->ssid_len;
1165                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1166         }
1167         if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1168                 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1169                 wpa_s->global->add_psk = NULL;
1170                 changed = 1;
1171         }
1172
1173         if (changed && wpa_s->conf->update_config &&
1174             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1175                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1176         }
1177
1178         return s->id;
1179 }
1180
1181
1182 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1183                                                  const u8 *addr)
1184 {
1185         struct wpa_ssid *ssid, *s;
1186         u8 *n;
1187         size_t i;
1188         int found = 0;
1189         struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1190
1191         ssid = wpa_s->current_ssid;
1192         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1193             !ssid->p2p_persistent_group)
1194                 return;
1195
1196         for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1197                 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1198                         continue;
1199
1200                 if (s->ssid_len == ssid->ssid_len &&
1201                     os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1202                         break;
1203         }
1204
1205         if (s == NULL)
1206                 return;
1207
1208         for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1209                 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1210                               ETH_ALEN) != 0)
1211                         continue;
1212
1213                 if (i == s->num_p2p_clients - 1)
1214                         return; /* already the most recent entry */
1215
1216                 /* move the entry to mark it most recent */
1217                 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1218                            s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1219                            (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1220                 os_memcpy(s->p2p_client_list +
1221                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1222                           ETH_ALEN);
1223                 os_memset(s->p2p_client_list +
1224                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1225                           0xff, ETH_ALEN);
1226                 found = 1;
1227                 break;
1228         }
1229
1230         if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1231                 n = os_realloc_array(s->p2p_client_list,
1232                                      s->num_p2p_clients + 1, 2 * ETH_ALEN);
1233                 if (n == NULL)
1234                         return;
1235                 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1236                           ETH_ALEN);
1237                 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1238                           0xff, ETH_ALEN);
1239                 s->p2p_client_list = n;
1240                 s->num_p2p_clients++;
1241         } else if (!found && s->p2p_client_list) {
1242                 /* Not enough room for an additional entry - drop the oldest
1243                  * entry */
1244                 os_memmove(s->p2p_client_list,
1245                            s->p2p_client_list + 2 * ETH_ALEN,
1246                            (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1247                 os_memcpy(s->p2p_client_list +
1248                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1249                           addr, ETH_ALEN);
1250                 os_memset(s->p2p_client_list +
1251                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1252                           0xff, ETH_ALEN);
1253         }
1254
1255         if (p2p_wpa_s->conf->update_config &&
1256             wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1257                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1258 }
1259
1260
1261 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1262                                    int go, struct wpa_ssid *ssid, int freq,
1263                                    const u8 *psk, const char *passphrase,
1264                                    const u8 *go_dev_addr, int persistent,
1265                                    const char *extra)
1266 {
1267         const char *ssid_txt;
1268         char psk_txt[65];
1269
1270         if (psk)
1271                 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1272         else
1273                 psk_txt[0] = '\0';
1274
1275         if (ssid)
1276                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1277         else
1278                 ssid_txt = "";
1279
1280         if (passphrase && passphrase[0] == '\0')
1281                 passphrase = NULL;
1282
1283         /*
1284          * Include PSK/passphrase only in the control interface message and
1285          * leave it out from the debug log entry.
1286          */
1287         wpa_msg_global_ctrl(wpa_s->p2pdev, MSG_INFO,
1288                             P2P_EVENT_GROUP_STARTED
1289                             "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1290                             MACSTR "%s%s",
1291                             wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1292                             psk ? " psk=" : "", psk_txt,
1293                             passphrase ? " passphrase=\"" : "",
1294                             passphrase ? passphrase : "",
1295                             passphrase ? "\"" : "",
1296                             MAC2STR(go_dev_addr),
1297                             persistent ? " [PERSISTENT]" : "", extra);
1298         wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1299                    "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1300                    wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1301                    MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1302                    extra);
1303 }
1304
1305
1306 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1307                                            int success, int already_deleted)
1308 {
1309         struct wpa_ssid *ssid;
1310         int client;
1311         int persistent;
1312         u8 go_dev_addr[ETH_ALEN];
1313
1314         /*
1315          * This callback is likely called for the main interface. Update wpa_s
1316          * to use the group interface if a new interface was created for the
1317          * group.
1318          */
1319         if (wpa_s->global->p2p_group_formation)
1320                 wpa_s = wpa_s->global->p2p_group_formation;
1321         if (wpa_s->p2p_go_group_formation_completed) {
1322                 wpa_s->global->p2p_group_formation = NULL;
1323                 wpa_s->p2p_in_provisioning = 0;
1324         } else if (wpa_s->p2p_in_provisioning && !success) {
1325                 wpa_msg(wpa_s, MSG_DEBUG,
1326                         "P2P: Stop provisioning state due to failure");
1327                 wpa_s->p2p_in_provisioning = 0;
1328         }
1329         wpa_s->p2p_in_invitation = 0;
1330         wpa_s->group_formation_reported = 1;
1331
1332         if (!success) {
1333                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1334                                P2P_EVENT_GROUP_FORMATION_FAILURE);
1335                 wpas_notify_p2p_group_formation_failure(wpa_s, "");
1336                 if (already_deleted)
1337                         return;
1338                 wpas_p2p_group_delete(wpa_s,
1339                                       P2P_GROUP_REMOVAL_FORMATION_FAILED);
1340                 return;
1341         }
1342
1343         wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1344                        P2P_EVENT_GROUP_FORMATION_SUCCESS);
1345
1346         ssid = wpa_s->current_ssid;
1347         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1348                 ssid->mode = WPAS_MODE_P2P_GO;
1349                 p2p_group_notif_formation_done(wpa_s->p2p_group);
1350                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1351         }
1352
1353         persistent = 0;
1354         if (ssid) {
1355                 client = ssid->mode == WPAS_MODE_INFRA;
1356                 if (ssid->mode == WPAS_MODE_P2P_GO) {
1357                         persistent = ssid->p2p_persistent_group;
1358                         os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1359                                   ETH_ALEN);
1360                 } else
1361                         persistent = wpas_p2p_persistent_group(wpa_s,
1362                                                                go_dev_addr,
1363                                                                ssid->ssid,
1364                                                                ssid->ssid_len);
1365         } else {
1366                 client = wpa_s->p2p_group_interface ==
1367                         P2P_GROUP_INTERFACE_CLIENT;
1368                 os_memset(go_dev_addr, 0, ETH_ALEN);
1369         }
1370
1371         wpa_s->show_group_started = 0;
1372         if (client) {
1373                 /*
1374                  * Indicate event only after successfully completed 4-way
1375                  * handshake, i.e., when the interface is ready for data
1376                  * packets.
1377                  */
1378                 wpa_s->show_group_started = 1;
1379         } else {
1380                 wpas_p2p_group_started(wpa_s, 1, ssid,
1381                                        ssid ? ssid->frequency : 0,
1382                                        ssid && ssid->passphrase == NULL &&
1383                                        ssid->psk_set ? ssid->psk : NULL,
1384                                        ssid ? ssid->passphrase : NULL,
1385                                        go_dev_addr, persistent, "");
1386                 wpas_p2p_cross_connect_setup(wpa_s);
1387                 wpas_p2p_set_group_idle_timeout(wpa_s);
1388         }
1389
1390         if (persistent)
1391                 wpas_p2p_store_persistent_group(wpa_s->p2pdev,
1392                                                 ssid, go_dev_addr);
1393         else {
1394                 os_free(wpa_s->global->add_psk);
1395                 wpa_s->global->add_psk = NULL;
1396         }
1397
1398         if (!client) {
1399                 wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 0, NULL);
1400                 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1401         }
1402 }
1403
1404
1405 struct send_action_work {
1406         unsigned int freq;
1407         u8 dst[ETH_ALEN];
1408         u8 src[ETH_ALEN];
1409         u8 bssid[ETH_ALEN];
1410         size_t len;
1411         unsigned int wait_time;
1412         u8 buf[0];
1413 };
1414
1415
1416 static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
1417 {
1418         struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
1419
1420         wpa_printf(MSG_DEBUG,
1421                    "P2P: Free Action frame radio work @%p (freq=%u dst="
1422                    MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
1423                    wpa_s->p2p_send_action_work, awork->freq,
1424                    MAC2STR(awork->dst), MAC2STR(awork->src),
1425                    MAC2STR(awork->bssid), awork->wait_time);
1426         wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
1427                     awork->buf, awork->len);
1428         os_free(awork);
1429         wpa_s->p2p_send_action_work->ctx = NULL;
1430         radio_work_done(wpa_s->p2p_send_action_work);
1431         wpa_s->p2p_send_action_work = NULL;
1432 }
1433
1434
1435 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1436                                               void *timeout_ctx)
1437 {
1438         struct wpa_supplicant *wpa_s = eloop_ctx;
1439
1440         if (!wpa_s->p2p_send_action_work)
1441                 return;
1442
1443         wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1444         wpas_p2p_free_send_action_work(wpa_s);
1445 }
1446
1447
1448 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1449 {
1450         if (wpa_s->p2p_send_action_work) {
1451                 struct send_action_work *awork;
1452
1453                 awork = wpa_s->p2p_send_action_work->ctx;
1454                 wpa_printf(MSG_DEBUG,
1455                            "P2P: Clear Action TX work @%p (wait_time=%u)",
1456                            wpa_s->p2p_send_action_work, awork->wait_time);
1457                 if (awork->wait_time == 0) {
1458                         wpas_p2p_free_send_action_work(wpa_s);
1459                 } else {
1460                         /*
1461                          * In theory, this should not be needed, but number of
1462                          * places in the P2P code is still using non-zero wait
1463                          * time for the last Action frame in the sequence and
1464                          * some of these do not call send_action_done().
1465                          */
1466                         eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1467                                              wpa_s, NULL);
1468                         eloop_register_timeout(
1469                                 0, awork->wait_time * 1000,
1470                                 wpas_p2p_send_action_work_timeout,
1471                                 wpa_s, NULL);
1472                 }
1473         }
1474 }
1475
1476
1477 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1478                                            unsigned int freq,
1479                                            const u8 *dst, const u8 *src,
1480                                            const u8 *bssid,
1481                                            const u8 *data, size_t data_len,
1482                                            enum offchannel_send_action_result
1483                                            result)
1484 {
1485         enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1486
1487         wpas_p2p_action_tx_clear(wpa_s);
1488
1489         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1490                 return;
1491
1492         switch (result) {
1493         case OFFCHANNEL_SEND_ACTION_SUCCESS:
1494                 res = P2P_SEND_ACTION_SUCCESS;
1495                 break;
1496         case OFFCHANNEL_SEND_ACTION_NO_ACK:
1497                 res = P2P_SEND_ACTION_NO_ACK;
1498                 break;
1499         case OFFCHANNEL_SEND_ACTION_FAILED:
1500                 res = P2P_SEND_ACTION_FAILED;
1501                 break;
1502         }
1503
1504         p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1505
1506         if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1507             wpa_s->pending_pd_before_join &&
1508             (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1509              os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1510             wpa_s->p2p_fallback_to_go_neg) {
1511                 wpa_s->pending_pd_before_join = 0;
1512                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1513                         "during p2p_connect-auto");
1514                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
1515                                P2P_EVENT_FALLBACK_TO_GO_NEG
1516                                "reason=no-ACK-to-PD-Req");
1517                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1518                 return;
1519         }
1520 }
1521
1522
1523 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1524 {
1525         struct wpa_supplicant *wpa_s = work->wpa_s;
1526         struct send_action_work *awork = work->ctx;
1527
1528         if (deinit) {
1529                 if (work->started) {
1530                         eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1531                                              wpa_s, NULL);
1532                         wpa_s->p2p_send_action_work = NULL;
1533                         offchannel_send_action_done(wpa_s);
1534                 }
1535                 os_free(awork);
1536                 return;
1537         }
1538
1539         if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1540                                    awork->bssid, awork->buf, awork->len,
1541                                    awork->wait_time,
1542                                    wpas_p2p_send_action_tx_status, 1) < 0) {
1543                 os_free(awork);
1544                 radio_work_done(work);
1545                 return;
1546         }
1547         wpa_s->p2p_send_action_work = work;
1548 }
1549
1550
1551 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1552                                  unsigned int freq, const u8 *dst,
1553                                  const u8 *src, const u8 *bssid, const u8 *buf,
1554                                  size_t len, unsigned int wait_time)
1555 {
1556         struct send_action_work *awork;
1557
1558         if (wpa_s->p2p_send_action_work) {
1559                 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1560                 return -1;
1561         }
1562
1563         awork = os_zalloc(sizeof(*awork) + len);
1564         if (awork == NULL)
1565                 return -1;
1566
1567         awork->freq = freq;
1568         os_memcpy(awork->dst, dst, ETH_ALEN);
1569         os_memcpy(awork->src, src, ETH_ALEN);
1570         os_memcpy(awork->bssid, bssid, ETH_ALEN);
1571         awork->len = len;
1572         awork->wait_time = wait_time;
1573         os_memcpy(awork->buf, buf, len);
1574
1575         if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1576                            wpas_send_action_cb, awork) < 0) {
1577                 os_free(awork);
1578                 return -1;
1579         }
1580
1581         return 0;
1582 }
1583
1584
1585 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1586                             const u8 *src, const u8 *bssid, const u8 *buf,
1587                             size_t len, unsigned int wait_time)
1588 {
1589         struct wpa_supplicant *wpa_s = ctx;
1590         int listen_freq = -1, send_freq = -1;
1591
1592         if (wpa_s->p2p_listen_work)
1593                 listen_freq = wpa_s->p2p_listen_work->freq;
1594         if (wpa_s->p2p_send_action_work)
1595                 send_freq = wpa_s->p2p_send_action_work->freq;
1596         if (listen_freq != (int) freq && send_freq != (int) freq) {
1597                 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1598                            listen_freq, send_freq);
1599                 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1600                                              len, wait_time);
1601         }
1602
1603         wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1604         return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1605                                       wait_time,
1606                                       wpas_p2p_send_action_tx_status, 1);
1607 }
1608
1609
1610 static void wpas_send_action_done(void *ctx)
1611 {
1612         struct wpa_supplicant *wpa_s = ctx;
1613
1614         if (wpa_s->p2p_send_action_work) {
1615                 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1616                                      wpa_s, NULL);
1617                 os_free(wpa_s->p2p_send_action_work->ctx);
1618                 radio_work_done(wpa_s->p2p_send_action_work);
1619                 wpa_s->p2p_send_action_work = NULL;
1620         }
1621
1622         offchannel_send_action_done(wpa_s);
1623 }
1624
1625
1626 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1627                                     struct p2p_go_neg_results *params)
1628 {
1629         if (wpa_s->go_params == NULL) {
1630                 wpa_s->go_params = os_malloc(sizeof(*params));
1631                 if (wpa_s->go_params == NULL)
1632                         return -1;
1633         }
1634         os_memcpy(wpa_s->go_params, params, sizeof(*params));
1635         return 0;
1636 }
1637
1638
1639 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1640                                     struct p2p_go_neg_results *res)
1641 {
1642         wpa_s->group_formation_reported = 0;
1643         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1644                    " dev_addr " MACSTR " wps_method %d",
1645                    MAC2STR(res->peer_interface_addr),
1646                    MAC2STR(res->peer_device_addr), res->wps_method);
1647         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1648                           res->ssid, res->ssid_len);
1649         wpa_supplicant_ap_deinit(wpa_s);
1650         wpas_copy_go_neg_results(wpa_s, res);
1651         if (res->wps_method == WPS_PBC) {
1652                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1653 #ifdef CONFIG_WPS_NFC
1654         } else if (res->wps_method == WPS_NFC) {
1655                 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1656                                    res->peer_interface_addr,
1657                                    wpa_s->p2pdev->p2p_oob_dev_pw,
1658                                    wpa_s->p2pdev->p2p_oob_dev_pw_id, 1,
1659                                    wpa_s->p2pdev->p2p_oob_dev_pw_id ==
1660                                    DEV_PW_NFC_CONNECTION_HANDOVER ?
1661                                    wpa_s->p2pdev->p2p_peer_oob_pubkey_hash :
1662                                    NULL,
1663                                    NULL, 0, 0);
1664 #endif /* CONFIG_WPS_NFC */
1665         } else {
1666                 u16 dev_pw_id = DEV_PW_DEFAULT;
1667                 if (wpa_s->p2p_wps_method == WPS_P2PS)
1668                         dev_pw_id = DEV_PW_P2PS_DEFAULT;
1669                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1670                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1671                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1672                                    wpa_s->p2p_pin, 1, dev_pw_id);
1673         }
1674 }
1675
1676
1677 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1678                                   struct wpa_ssid *ssid)
1679 {
1680         struct wpa_ssid *persistent;
1681         struct psk_list_entry *psk;
1682         struct hostapd_data *hapd;
1683
1684         if (!wpa_s->ap_iface)
1685                 return;
1686
1687         persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
1688                                              ssid->ssid_len);
1689         if (persistent == NULL)
1690                 return;
1691
1692         hapd = wpa_s->ap_iface->bss[0];
1693
1694         dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1695                          list) {
1696                 struct hostapd_wpa_psk *hpsk;
1697
1698                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1699                         MACSTR " psk=%d",
1700                         MAC2STR(psk->addr), psk->p2p);
1701                 hpsk = os_zalloc(sizeof(*hpsk));
1702                 if (hpsk == NULL)
1703                         break;
1704                 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1705                 if (psk->p2p)
1706                         os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1707                 else
1708                         os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1709                 hpsk->next = hapd->conf->ssid.wpa_psk;
1710                 hapd->conf->ssid.wpa_psk = hpsk;
1711         }
1712 }
1713
1714
1715 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1716 {
1717         char buf[20 + P2P_MAX_CHANNELS * 6];
1718         char *pos, *end;
1719         unsigned int i;
1720         int res;
1721
1722         pos = buf;
1723         end = pos + sizeof(buf);
1724         for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
1725                 res = os_snprintf(pos, end - pos, " %d",
1726                                   wpa_s->p2p_group_common_freqs[i]);
1727                 if (os_snprintf_error(end - pos, res))
1728                         break;
1729                 pos += res;
1730         }
1731         *pos = '\0';
1732
1733         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies:%s", buf);
1734 }
1735
1736
1737 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1738                                            struct p2p_go_neg_results *params)
1739 {
1740         unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1741
1742         wpa_s->p2p_group_common_freqs_num = 0;
1743         os_free(wpa_s->p2p_group_common_freqs);
1744         wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1745         if (!wpa_s->p2p_group_common_freqs)
1746                 return;
1747
1748         for (i = 0; i < len; i++) {
1749                 if (!wpa_s->go_params->freq_list[i])
1750                         break;
1751                 wpa_s->p2p_group_common_freqs[i] =
1752                         wpa_s->go_params->freq_list[i];
1753         }
1754         wpa_s->p2p_group_common_freqs_num = i;
1755 }
1756
1757
1758 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1759 {
1760 #ifndef CONFIG_NO_CONFIG_WRITE
1761         if (wpa_s->p2pdev->conf->update_config &&
1762             wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
1763                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1764 #endif /* CONFIG_NO_CONFIG_WRITE */
1765 }
1766
1767
1768 static void p2p_go_configured(void *ctx, void *data)
1769 {
1770         struct wpa_supplicant *wpa_s = ctx;
1771         struct p2p_go_neg_results *params = data;
1772         struct wpa_ssid *ssid;
1773
1774         wpa_s->ap_configured_cb = NULL;
1775         wpa_s->ap_configured_cb_ctx = NULL;
1776         wpa_s->ap_configured_cb_data = NULL;
1777         if (!wpa_s->go_params) {
1778                 wpa_printf(MSG_ERROR,
1779                            "P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
1780                 return;
1781         }
1782
1783         p2p_go_save_group_common_freqs(wpa_s, params);
1784         p2p_go_dump_common_freqs(wpa_s);
1785
1786         ssid = wpa_s->current_ssid;
1787         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1788                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1789                 if (wpa_s->global->p2p_group_formation == wpa_s)
1790                         wpa_s->global->p2p_group_formation = NULL;
1791                 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1792                                        params->passphrase[0] == '\0' ?
1793                                        params->psk : NULL,
1794                                        params->passphrase,
1795                                        wpa_s->global->p2p_dev_addr,
1796                                        params->persistent_group, "");
1797                 wpa_s->group_formation_reported = 1;
1798
1799                 if (wpa_s->p2pdev->p2ps_method_config_any) {
1800                         if (is_zero_ether_addr(wpa_s->p2pdev->p2ps_join_addr)) {
1801                                 wpa_dbg(wpa_s, MSG_DEBUG,
1802                                         "P2PS: Setting default PIN for ANY");
1803                                 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1804                                                           "12345670", NULL, 0,
1805                                                           0);
1806                         } else {
1807                                 wpa_dbg(wpa_s, MSG_DEBUG,
1808                                         "P2PS: Setting default PIN for " MACSTR,
1809                                         MAC2STR(wpa_s->p2pdev->p2ps_join_addr));
1810                                 wpa_supplicant_ap_wps_pin(
1811                                         wpa_s, wpa_s->p2pdev->p2ps_join_addr,
1812                                         "12345670", NULL, 0, 0);
1813                         }
1814                         wpa_s->p2pdev->p2ps_method_config_any = 0;
1815                 }
1816
1817                 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1818                 if (params->persistent_group) {
1819                         wpas_p2p_store_persistent_group(
1820                                 wpa_s->p2pdev, ssid,
1821                                 wpa_s->global->p2p_dev_addr);
1822                         wpas_p2p_add_psk_list(wpa_s, ssid);
1823                 }
1824
1825                 wpas_notify_p2p_group_started(wpa_s, ssid,
1826                                               params->persistent_group, 0,
1827                                               NULL);
1828                 wpas_p2p_cross_connect_setup(wpa_s);
1829                 wpas_p2p_set_group_idle_timeout(wpa_s);
1830
1831                 if (wpa_s->p2p_first_connection_timeout) {
1832                         wpa_dbg(wpa_s, MSG_DEBUG,
1833                                 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1834                                 wpa_s->p2p_first_connection_timeout);
1835                         wpa_s->p2p_go_group_formation_completed = 0;
1836                         wpa_s->global->p2p_group_formation = wpa_s;
1837                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1838                                              wpa_s->p2pdev, NULL);
1839                         eloop_register_timeout(
1840                                 wpa_s->p2p_first_connection_timeout, 0,
1841                                 wpas_p2p_group_formation_timeout,
1842                                 wpa_s->p2pdev, NULL);
1843                 }
1844
1845                 return;
1846         }
1847
1848         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1849         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1850                                               params->peer_interface_addr)) {
1851                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1852                            "filtering");
1853                 return;
1854         }
1855         if (params->wps_method == WPS_PBC) {
1856                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1857                                           params->peer_device_addr);
1858 #ifdef CONFIG_WPS_NFC
1859         } else if (params->wps_method == WPS_NFC) {
1860                 if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
1861                     DEV_PW_NFC_CONNECTION_HANDOVER &&
1862                     !wpa_s->p2pdev->p2p_oob_dev_pw) {
1863                         wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1864                         return;
1865                 }
1866                 wpas_ap_wps_add_nfc_pw(
1867                         wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
1868                         wpa_s->p2pdev->p2p_oob_dev_pw,
1869                         wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
1870                         wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
1871 #endif /* CONFIG_WPS_NFC */
1872         } else if (wpa_s->p2p_pin[0])
1873                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1874                                           wpa_s->p2p_pin, NULL, 0, 0);
1875         os_free(wpa_s->go_params);
1876         wpa_s->go_params = NULL;
1877 }
1878
1879
1880 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1881                               struct p2p_go_neg_results *params,
1882                               int group_formation)
1883 {
1884         struct wpa_ssid *ssid;
1885
1886         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1887         if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1888                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1889                         "results");
1890                 return;
1891         }
1892
1893         ssid = wpa_config_add_network(wpa_s->conf);
1894         if (ssid == NULL) {
1895                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1896                 return;
1897         }
1898
1899         wpa_s->show_group_started = 0;
1900         wpa_s->p2p_go_group_formation_completed = 0;
1901         wpa_s->group_formation_reported = 0;
1902         os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1903
1904         wpa_config_set_network_defaults(ssid);
1905         ssid->temporary = 1;
1906         ssid->p2p_group = 1;
1907         ssid->p2p_persistent_group = !!params->persistent_group;
1908         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1909                 WPAS_MODE_P2P_GO;
1910         ssid->frequency = params->freq;
1911         ssid->ht40 = params->ht40;
1912         ssid->vht = params->vht;
1913         ssid->max_oper_chwidth = params->max_oper_chwidth;
1914         ssid->vht_center_freq2 = params->vht_center_freq2;
1915         ssid->ssid = os_zalloc(params->ssid_len + 1);
1916         if (ssid->ssid) {
1917                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1918                 ssid->ssid_len = params->ssid_len;
1919         }
1920         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1921         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1922         ssid->proto = WPA_PROTO_RSN;
1923         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1924         ssid->group_cipher = WPA_CIPHER_CCMP;
1925         if (params->freq > 56160) {
1926                 /*
1927                  * Enable GCMP instead of CCMP as pairwise_cipher and
1928                  * group_cipher in 60 GHz.
1929                  */
1930                 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1931                 ssid->group_cipher = WPA_CIPHER_GCMP;
1932                 /* P2P GO in 60 GHz is always a PCP (PBSS) */
1933                 ssid->pbss = 1;
1934         }
1935         if (os_strlen(params->passphrase) > 0) {
1936                 ssid->passphrase = os_strdup(params->passphrase);
1937                 if (ssid->passphrase == NULL) {
1938                         wpa_msg_global(wpa_s, MSG_ERROR,
1939                                        "P2P: Failed to copy passphrase for GO");
1940                         wpa_config_remove_network(wpa_s->conf, ssid->id);
1941                         return;
1942                 }
1943         } else
1944                 ssid->passphrase = NULL;
1945         ssid->psk_set = params->psk_set;
1946         if (ssid->psk_set)
1947                 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1948         else if (ssid->passphrase)
1949                 wpa_config_update_psk(ssid);
1950         ssid->ap_max_inactivity = wpa_s->p2pdev->conf->p2p_go_max_inactivity;
1951
1952         wpa_s->ap_configured_cb = p2p_go_configured;
1953         wpa_s->ap_configured_cb_ctx = wpa_s;
1954         wpa_s->ap_configured_cb_data = wpa_s->go_params;
1955         wpa_s->scan_req = NORMAL_SCAN_REQ;
1956         wpa_s->connect_without_scan = ssid;
1957         wpa_s->reassociate = 1;
1958         wpa_s->disconnected = 0;
1959         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1960                 "start GO)");
1961         wpa_supplicant_req_scan(wpa_s, 0, 0);
1962 }
1963
1964
1965 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1966                                   const struct wpa_supplicant *src)
1967 {
1968         struct wpa_config *d;
1969         const struct wpa_config *s;
1970
1971         d = dst->conf;
1972         s = src->conf;
1973
1974 #define C(n)                            \
1975 do {                                    \
1976         if (s->n && !d->n)              \
1977                 d->n = os_strdup(s->n); \
1978 } while (0)
1979
1980         C(device_name);
1981         C(manufacturer);
1982         C(model_name);
1983         C(model_number);
1984         C(serial_number);
1985         C(config_methods);
1986 #undef C
1987
1988         os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1989         os_memcpy(d->sec_device_type, s->sec_device_type,
1990                   sizeof(d->sec_device_type));
1991         d->num_sec_device_types = s->num_sec_device_types;
1992
1993         d->p2p_group_idle = s->p2p_group_idle;
1994         d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1995         d->p2p_intra_bss = s->p2p_intra_bss;
1996         d->persistent_reconnect = s->persistent_reconnect;
1997         d->max_num_sta = s->max_num_sta;
1998         d->pbc_in_m1 = s->pbc_in_m1;
1999         d->ignore_old_scan_res = s->ignore_old_scan_res;
2000         d->beacon_int = s->beacon_int;
2001         d->dtim_period = s->dtim_period;
2002         d->p2p_go_ctwindow = s->p2p_go_ctwindow;
2003         d->disassoc_low_ack = s->disassoc_low_ack;
2004         d->disable_scan_offload = s->disable_scan_offload;
2005         d->passive_scan = s->passive_scan;
2006
2007         if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey &&
2008             !d->wps_nfc_pw_from_config) {
2009                 wpabuf_free(d->wps_nfc_dh_privkey);
2010                 wpabuf_free(d->wps_nfc_dh_pubkey);
2011                 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
2012                 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
2013         }
2014         d->p2p_cli_probe = s->p2p_cli_probe;
2015         d->go_interworking = s->go_interworking;
2016         d->go_access_network_type = s->go_access_network_type;
2017         d->go_internet = s->go_internet;
2018         d->go_venue_group = s->go_venue_group;
2019         d->go_venue_type = s->go_venue_type;
2020 }
2021
2022
2023 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
2024                                       char *ifname, size_t len)
2025 {
2026         char *ifname_ptr = wpa_s->ifname;
2027
2028         if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
2029                        os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
2030                 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
2031         }
2032
2033         os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
2034         if (os_strlen(ifname) >= IFNAMSIZ &&
2035             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
2036                 int res;
2037
2038                 /* Try to avoid going over the IFNAMSIZ length limit */
2039                 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2040                 if (os_snprintf_error(len, res) && len)
2041                         ifname[len - 1] = '\0';
2042         }
2043 }
2044
2045
2046 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
2047                                         enum wpa_driver_if_type type)
2048 {
2049         char ifname[120], force_ifname[120];
2050
2051         if (wpa_s->pending_interface_name[0]) {
2052                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2053                            "- skip creation of a new one");
2054                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2055                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2056                                    "unknown?! ifname='%s'",
2057                                    wpa_s->pending_interface_name);
2058                         return -1;
2059                 }
2060                 return 0;
2061         }
2062
2063         wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
2064         force_ifname[0] = '\0';
2065
2066         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2067                    ifname);
2068         wpa_s->p2p_group_idx++;
2069
2070         wpa_s->pending_interface_type = type;
2071         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
2072                            wpa_s->pending_interface_addr, NULL) < 0) {
2073                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2074                            "interface");
2075                 return -1;
2076         }
2077
2078         if (force_ifname[0]) {
2079                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2080                            force_ifname);
2081                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2082                            sizeof(wpa_s->pending_interface_name));
2083         } else
2084                 os_strlcpy(wpa_s->pending_interface_name, ifname,
2085                            sizeof(wpa_s->pending_interface_name));
2086         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2087                    MACSTR, wpa_s->pending_interface_name,
2088                    MAC2STR(wpa_s->pending_interface_addr));
2089
2090         return 0;
2091 }
2092
2093
2094 static void wpas_p2p_remove_pending_group_interface(
2095         struct wpa_supplicant *wpa_s)
2096 {
2097         if (!wpa_s->pending_interface_name[0] ||
2098             is_zero_ether_addr(wpa_s->pending_interface_addr))
2099                 return; /* No pending virtual interface */
2100
2101         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2102                    wpa_s->pending_interface_name);
2103         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2104                           wpa_s->pending_interface_name);
2105         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2106         wpa_s->pending_interface_name[0] = '\0';
2107         wpa_s->global->pending_group_iface_for_p2ps = 0;
2108 }
2109
2110
2111 static struct wpa_supplicant *
2112 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2113 {
2114         struct wpa_interface iface;
2115         struct wpa_supplicant *group_wpa_s;
2116
2117         if (!wpa_s->pending_interface_name[0]) {
2118                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2119                 if (!wpas_p2p_create_iface(wpa_s))
2120                         return NULL;
2121                 /*
2122                  * Something has forced us to remove the pending interface; try
2123                  * to create a new one and hope for the best that we will get
2124                  * the same local address.
2125                  */
2126                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2127                                                  WPA_IF_P2P_CLIENT) < 0)
2128                         return NULL;
2129         }
2130
2131         os_memset(&iface, 0, sizeof(iface));
2132         iface.ifname = wpa_s->pending_interface_name;
2133         iface.driver = wpa_s->driver->name;
2134         if (wpa_s->conf->ctrl_interface == NULL &&
2135             wpa_s->parent != wpa_s &&
2136             wpa_s->p2p_mgmt &&
2137             (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2138                 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2139         else
2140                 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2141         iface.driver_param = wpa_s->conf->driver_param;
2142         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2143         if (group_wpa_s == NULL) {
2144                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2145                            "wpa_supplicant interface");
2146                 return NULL;
2147         }
2148         wpa_s->pending_interface_name[0] = '\0';
2149         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2150                 P2P_GROUP_INTERFACE_CLIENT;
2151         wpa_s->global->p2p_group_formation = group_wpa_s;
2152         wpa_s->global->pending_group_iface_for_p2ps = 0;
2153
2154         wpas_p2p_clone_config(group_wpa_s, wpa_s);
2155
2156         return group_wpa_s;
2157 }
2158
2159
2160 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2161                                              void *timeout_ctx)
2162 {
2163         struct wpa_supplicant *wpa_s = eloop_ctx;
2164         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2165         wpas_p2p_group_formation_failed(wpa_s, 0);
2166 }
2167
2168
2169 static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2170                                             int already_deleted)
2171 {
2172         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2173                              wpa_s->p2pdev, NULL);
2174         if (wpa_s->global->p2p)
2175                 p2p_group_formation_failed(wpa_s->global->p2p);
2176         wpas_group_formation_completed(wpa_s, 0, already_deleted);
2177 }
2178
2179
2180 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2181 {
2182         wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2183         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2184                              wpa_s->p2pdev, NULL);
2185         eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2186                                wpa_s->p2pdev, NULL);
2187         wpa_s->global->p2p_fail_on_wps_complete = 0;
2188 }
2189
2190
2191 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2192 {
2193         if (wpa_s->global->p2p_group_formation != wpa_s)
2194                 return;
2195         /* Speed up group formation timeout since this cannot succeed */
2196         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2197                              wpa_s->p2pdev, NULL);
2198         eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2199                                wpa_s->p2pdev, NULL);
2200 }
2201
2202
2203 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2204 {
2205         struct wpa_supplicant *wpa_s = ctx;
2206         struct wpa_supplicant *group_wpa_s;
2207
2208         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2209                 wpa_drv_cancel_remain_on_channel(wpa_s);
2210                 wpa_s->off_channel_freq = 0;
2211                 wpa_s->roc_waiting_drv_freq = 0;
2212         }
2213
2214         if (res->status) {
2215                 wpa_msg_global(wpa_s, MSG_INFO,
2216                                P2P_EVENT_GO_NEG_FAILURE "status=%d",
2217                                res->status);
2218                 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2219                 wpas_p2p_remove_pending_group_interface(wpa_s);
2220                 return;
2221         }
2222
2223         if (!res->role_go) {
2224                 /* Inform driver of the operating channel of GO. */
2225                 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2226         }
2227
2228         if (wpa_s->p2p_go_ht40)
2229                 res->ht40 = 1;
2230         if (wpa_s->p2p_go_vht)
2231                 res->vht = 1;
2232         res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
2233         res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
2234
2235         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2236                        "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2237                        " wps_method=%s",
2238                        res->role_go ? "GO" : "client", res->freq, res->ht40,
2239                        MAC2STR(res->peer_device_addr),
2240                        MAC2STR(res->peer_interface_addr),
2241                        p2p_wps_method_text(res->wps_method));
2242         wpas_notify_p2p_go_neg_completed(wpa_s, res);
2243
2244         if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2245                 struct wpa_ssid *ssid;
2246                 ssid = wpa_config_get_network(wpa_s->conf,
2247                                               wpa_s->p2p_persistent_id);
2248                 if (ssid && ssid->disabled == 2 &&
2249                     ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2250                         size_t len = os_strlen(ssid->passphrase);
2251                         wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2252                                    "on requested persistent group");
2253                         os_memcpy(res->passphrase, ssid->passphrase, len);
2254                         res->passphrase[len] = '\0';
2255                 }
2256         }
2257
2258         if (wpa_s->create_p2p_iface) {
2259                 group_wpa_s =
2260                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
2261                 if (group_wpa_s == NULL) {
2262                         wpas_p2p_remove_pending_group_interface(wpa_s);
2263                         eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2264                                              wpa_s, NULL);
2265                         wpas_p2p_group_formation_failed(wpa_s, 1);
2266                         return;
2267                 }
2268                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2269                 wpa_s->pending_interface_name[0] = '\0';
2270         } else {
2271                 group_wpa_s = wpa_s->parent;
2272                 wpa_s->global->p2p_group_formation = group_wpa_s;
2273                 if (group_wpa_s != wpa_s)
2274                         wpas_p2p_clone_config(group_wpa_s, wpa_s);
2275         }
2276
2277         group_wpa_s->p2p_in_provisioning = 1;
2278         group_wpa_s->p2pdev = wpa_s;
2279         if (group_wpa_s != wpa_s) {
2280                 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2281                           sizeof(group_wpa_s->p2p_pin));
2282                 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2283         }
2284         if (res->role_go) {
2285                 wpas_start_wps_go(group_wpa_s, res, 1);
2286         } else {
2287                 os_get_reltime(&group_wpa_s->scan_min_time);
2288                 wpas_start_wps_enrollee(group_wpa_s, res);
2289         }
2290
2291         wpa_s->p2p_long_listen = 0;
2292         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2293
2294         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2295         eloop_register_timeout(15 + res->peer_config_timeout / 100,
2296                                (res->peer_config_timeout % 100) * 10000,
2297                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
2298 }
2299
2300
2301 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2302                                u8 go_intent)
2303 {
2304         struct wpa_supplicant *wpa_s = ctx;
2305         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2306                        " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2307                        dev_passwd_id, go_intent);
2308
2309         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2310 }
2311
2312
2313 static void wpas_dev_found(void *ctx, const u8 *addr,
2314                            const struct p2p_peer_info *info,
2315                            int new_device)
2316 {
2317 #ifndef CONFIG_NO_STDOUT_DEBUG
2318         struct wpa_supplicant *wpa_s = ctx;
2319         char devtype[WPS_DEV_TYPE_BUFSIZE];
2320         char *wfd_dev_info_hex = NULL;
2321
2322 #ifdef CONFIG_WIFI_DISPLAY
2323         wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2324                                                     WFD_SUBELEM_DEVICE_INFO);
2325 #endif /* CONFIG_WIFI_DISPLAY */
2326
2327         if (info->p2ps_instance) {
2328                 char str[256];
2329                 const u8 *buf = wpabuf_head(info->p2ps_instance);
2330                 size_t len = wpabuf_len(info->p2ps_instance);
2331
2332                 while (len) {
2333                         u32 id;
2334                         u16 methods;
2335                         u8 str_len;
2336
2337                         if (len < 4 + 2 + 1)
2338                                 break;
2339                         id = WPA_GET_LE32(buf);
2340                         buf += sizeof(u32);
2341                         methods = WPA_GET_BE16(buf);
2342                         buf += sizeof(u16);
2343                         str_len = *buf++;
2344                         if (str_len > len - 4 - 2 - 1)
2345                                 break;
2346                         os_memcpy(str, buf, str_len);
2347                         str[str_len] = '\0';
2348                         buf += str_len;
2349                         len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2350
2351                         wpa_msg_global(wpa_s, MSG_INFO,
2352                                        P2P_EVENT_DEVICE_FOUND MACSTR
2353                                        " p2p_dev_addr=" MACSTR
2354                                        " pri_dev_type=%s name='%s'"
2355                                        " config_methods=0x%x"
2356                                        " dev_capab=0x%x"
2357                                        " group_capab=0x%x"
2358                                        " adv_id=%x asp_svc=%s%s",
2359                                        MAC2STR(addr),
2360                                        MAC2STR(info->p2p_device_addr),
2361                                        wps_dev_type_bin2str(
2362                                                info->pri_dev_type,
2363                                                devtype, sizeof(devtype)),
2364                                        info->device_name, methods,
2365                                        info->dev_capab, info->group_capab,
2366                                        id, str,
2367                                        info->vendor_elems ?
2368                                        " vendor_elems=1" : "");
2369                 }
2370                 goto done;
2371         }
2372
2373         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2374                        " p2p_dev_addr=" MACSTR
2375                        " pri_dev_type=%s name='%s' config_methods=0x%x "
2376                        "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2377                        MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2378                        wps_dev_type_bin2str(info->pri_dev_type, devtype,
2379                                             sizeof(devtype)),
2380                        info->device_name, info->config_methods,
2381                        info->dev_capab, info->group_capab,
2382                        wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2383                        wfd_dev_info_hex ? wfd_dev_info_hex : "",
2384                        info->vendor_elems ? " vendor_elems=1" : "",
2385                        new_device);
2386
2387 done:
2388         os_free(wfd_dev_info_hex);
2389 #endif /* CONFIG_NO_STDOUT_DEBUG */
2390
2391         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2392 }
2393
2394
2395 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2396 {
2397         struct wpa_supplicant *wpa_s = ctx;
2398
2399         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2400                        "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2401
2402         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2403 }
2404
2405
2406 static void wpas_find_stopped(void *ctx)
2407 {
2408         struct wpa_supplicant *wpa_s = ctx;
2409
2410         if (wpa_s->p2p_scan_work && wpas_abort_ongoing_scan(wpa_s) < 0)
2411                 wpa_printf(MSG_DEBUG, "P2P: Abort ongoing scan failed");
2412
2413         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2414         wpas_notify_p2p_find_stopped(wpa_s);
2415 }
2416
2417
2418 struct wpas_p2p_listen_work {
2419         unsigned int freq;
2420         unsigned int duration;
2421         struct wpabuf *probe_resp_ie;
2422 };
2423
2424
2425 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2426 {
2427         if (lwork == NULL)
2428                 return;
2429         wpabuf_free(lwork->probe_resp_ie);
2430         os_free(lwork);
2431 }
2432
2433
2434 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2435 {
2436         struct wpas_p2p_listen_work *lwork;
2437
2438         if (!wpa_s->p2p_listen_work)
2439                 return;
2440
2441         lwork = wpa_s->p2p_listen_work->ctx;
2442         wpas_p2p_listen_work_free(lwork);
2443         radio_work_done(wpa_s->p2p_listen_work);
2444         wpa_s->p2p_listen_work = NULL;
2445 }
2446
2447
2448 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2449 {
2450         struct wpa_supplicant *wpa_s = work->wpa_s;
2451         struct wpas_p2p_listen_work *lwork = work->ctx;
2452         unsigned int duration;
2453
2454         if (deinit) {
2455                 if (work->started) {
2456                         wpa_s->p2p_listen_work = NULL;
2457                         wpas_stop_listen(wpa_s);
2458                 }
2459                 wpas_p2p_listen_work_free(lwork);
2460                 return;
2461         }
2462
2463         wpa_s->p2p_listen_work = work;
2464
2465         wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2466
2467         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2468                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2469                            "report received Probe Request frames");
2470                 wpas_p2p_listen_work_done(wpa_s);
2471                 return;
2472         }
2473
2474         wpa_s->pending_listen_freq = lwork->freq;
2475         wpa_s->pending_listen_duration = lwork->duration;
2476
2477         duration = lwork->duration;
2478 #ifdef CONFIG_TESTING_OPTIONS
2479         if (wpa_s->extra_roc_dur) {
2480                 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2481                            duration, duration + wpa_s->extra_roc_dur);
2482                 duration += wpa_s->extra_roc_dur;
2483         }
2484 #endif /* CONFIG_TESTING_OPTIONS */
2485
2486         if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2487                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2488                            "to remain on channel (%u MHz) for Listen "
2489                            "state", lwork->freq);
2490                 wpas_p2p_listen_work_done(wpa_s);
2491                 wpa_s->pending_listen_freq = 0;
2492                 return;
2493         }
2494         wpa_s->off_channel_freq = 0;
2495         wpa_s->roc_waiting_drv_freq = lwork->freq;
2496 }
2497
2498
2499 static int wpas_start_listen(void *ctx, unsigned int freq,
2500                              unsigned int duration,
2501                              const struct wpabuf *probe_resp_ie)
2502 {
2503         struct wpa_supplicant *wpa_s = ctx;
2504         struct wpas_p2p_listen_work *lwork;
2505
2506         if (wpa_s->p2p_listen_work) {
2507                 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2508                 return -1;
2509         }
2510
2511         lwork = os_zalloc(sizeof(*lwork));
2512         if (lwork == NULL)
2513                 return -1;
2514         lwork->freq = freq;
2515         lwork->duration = duration;
2516         if (probe_resp_ie) {
2517                 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2518                 if (lwork->probe_resp_ie == NULL) {
2519                         wpas_p2p_listen_work_free(lwork);
2520                         return -1;
2521                 }
2522         }
2523
2524         if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2525                            lwork) < 0) {
2526                 wpas_p2p_listen_work_free(lwork);
2527                 return -1;
2528         }
2529
2530         return 0;
2531 }
2532
2533
2534 static void wpas_stop_listen(void *ctx)
2535 {
2536         struct wpa_supplicant *wpa_s = ctx;
2537         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2538                 wpa_drv_cancel_remain_on_channel(wpa_s);
2539                 wpa_s->off_channel_freq = 0;
2540                 wpa_s->roc_waiting_drv_freq = 0;
2541         }
2542         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2543
2544         /*
2545          * Don't cancel Probe Request RX reporting for a connected P2P Client
2546          * handling Probe Request frames.
2547          */
2548         if (!wpa_s->p2p_cli_probe)
2549                 wpa_drv_probe_req_report(wpa_s, 0);
2550
2551         wpas_p2p_listen_work_done(wpa_s);
2552 }
2553
2554
2555 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2556                                 unsigned int freq)
2557 {
2558         struct wpa_supplicant *wpa_s = ctx;
2559         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2560                                  freq);
2561 }
2562
2563
2564 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2565                                          const u8 *peer, const char *params,
2566                                          unsigned int generated_pin)
2567 {
2568         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2569                        " %08d%s", MAC2STR(peer), generated_pin, params);
2570 }
2571
2572
2573 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2574                                         const u8 *peer, const char *params)
2575 {
2576         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2577                        "%s", MAC2STR(peer), params);
2578 }
2579
2580
2581 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2582                                const u8 *dev_addr, const u8 *pri_dev_type,
2583                                const char *dev_name, u16 supp_config_methods,
2584                                u8 dev_capab, u8 group_capab, const u8 *group_id,
2585                                size_t group_id_len)
2586 {
2587         struct wpa_supplicant *wpa_s = ctx;
2588         char devtype[WPS_DEV_TYPE_BUFSIZE];
2589         char params[300];
2590         u8 empty_dev_type[8];
2591         unsigned int generated_pin = 0;
2592         struct wpa_supplicant *group = NULL;
2593         int res;
2594
2595         if (group_id) {
2596                 for (group = wpa_s->global->ifaces; group; group = group->next)
2597                 {
2598                         struct wpa_ssid *s = group->current_ssid;
2599                         if (s != NULL &&
2600                             s->mode == WPAS_MODE_P2P_GO &&
2601                             group_id_len - ETH_ALEN == s->ssid_len &&
2602                             os_memcmp(group_id + ETH_ALEN, s->ssid,
2603                                       s->ssid_len) == 0)
2604                                 break;
2605                 }
2606         }
2607
2608         if (pri_dev_type == NULL) {
2609                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2610                 pri_dev_type = empty_dev_type;
2611         }
2612         res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2613                           " pri_dev_type=%s name='%s' config_methods=0x%x "
2614                           "dev_capab=0x%x group_capab=0x%x%s%s",
2615                           MAC2STR(dev_addr),
2616                           wps_dev_type_bin2str(pri_dev_type, devtype,
2617                                                sizeof(devtype)),
2618                           dev_name, supp_config_methods, dev_capab, group_capab,
2619                           group ? " group=" : "",
2620                           group ? group->ifname : "");
2621         if (os_snprintf_error(sizeof(params), res))
2622                 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2623         params[sizeof(params) - 1] = '\0';
2624
2625         if (config_methods & WPS_CONFIG_DISPLAY) {
2626                 if (wps_generate_pin(&generated_pin) < 0) {
2627                         wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2628                         wpas_notify_p2p_provision_discovery(
2629                                 wpa_s, peer, 0 /* response */,
2630                                 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2631                         return;
2632                 }
2633                 wpas_prov_disc_local_display(wpa_s, peer, params,
2634                                              generated_pin);
2635         } else if (config_methods & WPS_CONFIG_KEYPAD)
2636                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2637         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2638                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2639                                MACSTR "%s", MAC2STR(peer), params);
2640
2641         wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2642                                             P2P_PROV_DISC_SUCCESS,
2643                                             config_methods, generated_pin);
2644 }
2645
2646
2647 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2648 {
2649         struct wpa_supplicant *wpa_s = ctx;
2650         unsigned int generated_pin = 0;
2651         char params[20];
2652
2653         if (wpa_s->pending_pd_before_join &&
2654             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2655              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2656                 wpa_s->pending_pd_before_join = 0;
2657                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2658                            "join-existing-group operation");
2659                 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2660                 return;
2661         }
2662
2663         if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2664             wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2665                 int res;
2666
2667                 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2668                                   wpa_s->pending_pd_use == AUTO_PD_JOIN);
2669                 if (os_snprintf_error(sizeof(params), res))
2670                         params[sizeof(params) - 1] = '\0';
2671         } else
2672                 params[0] = '\0';
2673
2674         if (config_methods & WPS_CONFIG_DISPLAY)
2675                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2676         else if (config_methods & WPS_CONFIG_KEYPAD) {
2677                 if (wps_generate_pin(&generated_pin) < 0) {
2678                         wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
2679                         wpas_notify_p2p_provision_discovery(
2680                                 wpa_s, peer, 0 /* response */,
2681                                 P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
2682                         return;
2683                 }
2684                 wpas_prov_disc_local_display(wpa_s, peer, params,
2685                                              generated_pin);
2686         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2687                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2688                                MACSTR "%s", MAC2STR(peer), params);
2689
2690         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2691                                             P2P_PROV_DISC_SUCCESS,
2692                                             config_methods, generated_pin);
2693 }
2694
2695
2696 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2697                                 enum p2p_prov_disc_status status,
2698                                 u32 adv_id, const u8 *adv_mac,
2699                                 const char *deferred_session_resp)
2700 {
2701         struct wpa_supplicant *wpa_s = ctx;
2702
2703         if (wpa_s->p2p_fallback_to_go_neg) {
2704                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2705                         "failed - fall back to GO Negotiation");
2706                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
2707                                P2P_EVENT_FALLBACK_TO_GO_NEG
2708                                "reason=PD-failed");
2709                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2710                 return;
2711         }
2712
2713         if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2714                 wpa_s->pending_pd_before_join = 0;
2715                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2716                            "join-existing-group operation (no ACK for PD "
2717                            "Req attempts)");
2718                 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2719                 return;
2720         }
2721
2722         if (adv_id && adv_mac && deferred_session_resp) {
2723                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2724                                " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2725                                " deferred_session_resp='%s'",
2726                                MAC2STR(peer), status, adv_id,
2727                                deferred_session_resp);
2728         } else if (adv_id && adv_mac) {
2729                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2730                                " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2731                                MAC2STR(peer), status, adv_id);
2732         } else {
2733                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2734                                " p2p_dev_addr=" MACSTR " status=%d",
2735                                MAC2STR(peer), status);
2736         }
2737
2738         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2739                                             status, 0, 0);
2740 }
2741
2742
2743 static int freq_included(struct wpa_supplicant *wpa_s,
2744                          const struct p2p_channels *channels,
2745                          unsigned int freq)
2746 {
2747         if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2748             wpas_p2p_go_is_peer_freq(wpa_s, freq))
2749                 return 1;
2750         return 0;
2751 }
2752
2753
2754 static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2755 {
2756         unsigned int num = P2P_MAX_CHANNELS;
2757         int *common_freqs;
2758         int ret;
2759
2760         p2p_go_dump_common_freqs(wpa_s);
2761         common_freqs = os_calloc(num, sizeof(int));
2762         if (!common_freqs)
2763                 return;
2764
2765         ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2766         if (ret < 0) {
2767                 wpa_dbg(wpa_s, MSG_DEBUG,
2768                         "P2P: Failed to get group common freqs");
2769                 os_free(common_freqs);
2770                 return;
2771         }
2772
2773         os_free(wpa_s->p2p_group_common_freqs);
2774         wpa_s->p2p_group_common_freqs = common_freqs;
2775         wpa_s->p2p_group_common_freqs_num = num;
2776         p2p_go_dump_common_freqs(wpa_s);
2777 }
2778
2779
2780 /*
2781  * Check if the given frequency is one of the possible operating frequencies
2782  * set after the completion of the GO Negotiation.
2783  */
2784 static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2785 {
2786         unsigned int i;
2787
2788         p2p_go_dump_common_freqs(wpa_s);
2789
2790         /* assume no restrictions */
2791         if (!wpa_s->p2p_group_common_freqs_num)
2792                 return 1;
2793
2794         for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2795                 if (wpa_s->p2p_group_common_freqs[i] == freq)
2796                         return 1;
2797         }
2798         return 0;
2799 }
2800
2801
2802 static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2803                                struct sta_info *sta, void *ctx)
2804 {
2805         int *ecsa_support = ctx;
2806
2807         *ecsa_support &= sta->ecsa_supported;
2808
2809         return 0;
2810 }
2811
2812
2813 /* Check if all the peers support eCSA */
2814 static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2815 {
2816         int ecsa_support = 1;
2817
2818         ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2819                         &ecsa_support);
2820
2821         return ecsa_support;
2822 }
2823
2824
2825 /**
2826  * Pick the best frequency to use from all the currently used frequencies.
2827  */
2828 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2829                                         struct wpa_used_freq_data *freqs,
2830                                         unsigned int num)
2831 {
2832         unsigned int i, c;
2833
2834         /* find a candidate freq that is supported by P2P */
2835         for (c = 0; c < num; c++)
2836                 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2837                         break;
2838
2839         if (c == num)
2840                 return 0;
2841
2842         /* once we have a candidate, try to find a 'better' one */
2843         for (i = c + 1; i < num; i++) {
2844                 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2845                         continue;
2846
2847                 /*
2848                  * 1. Infrastructure station interfaces have higher preference.
2849                  * 2. P2P Clients have higher preference.
2850                  * 3. All others.
2851                  */
2852                 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2853                         c = i;
2854                         break;
2855                 }
2856
2857                 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2858                         c = i;
2859         }
2860         return freqs[c].freq;
2861 }
2862
2863
2864 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2865                                   const u8 *go_dev_addr, const u8 *ssid,
2866                                   size_t ssid_len, int *go, u8 *group_bssid,
2867                                   int *force_freq, int persistent_group,
2868                                   const struct p2p_channels *channels,
2869                                   int dev_pw_id)
2870 {
2871         struct wpa_supplicant *wpa_s = ctx;
2872         struct wpa_ssid *s;
2873         struct wpa_used_freq_data *freqs;
2874         struct wpa_supplicant *grp;
2875         int best_freq;
2876
2877         if (!persistent_group) {
2878                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2879                            " to join an active group (SSID: %s)",
2880                            MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2881                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2882                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2883                      == 0 ||
2884                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2885                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2886                                    "authorized invitation");
2887                         goto accept_inv;
2888                 }
2889
2890 #ifdef CONFIG_WPS_NFC
2891                 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2892                     dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2893                         wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2894                         wpa_s->p2p_wps_method = WPS_NFC;
2895                         wpa_s->pending_join_wps_method = WPS_NFC;
2896                         os_memcpy(wpa_s->pending_join_dev_addr,
2897                                   go_dev_addr, ETH_ALEN);
2898                         os_memcpy(wpa_s->pending_join_iface_addr,
2899                                   bssid, ETH_ALEN);
2900                         goto accept_inv;
2901                 }
2902 #endif /* CONFIG_WPS_NFC */
2903
2904                 /*
2905                  * Do not accept the invitation automatically; notify user and
2906                  * request approval.
2907                  */
2908                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2909         }
2910
2911         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2912         if (grp) {
2913                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2914                            "running persistent group");
2915                 if (*go)
2916                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2917                 goto accept_inv;
2918         }
2919
2920         if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2921             os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2922                 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2923                            "invitation to re-invoke a persistent group");
2924                 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2925         } else if (!wpa_s->conf->persistent_reconnect)
2926                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2927
2928         for (s = wpa_s->conf->ssid; s; s = s->next) {
2929                 if (s->disabled == 2 &&
2930                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2931                     s->ssid_len == ssid_len &&
2932                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2933                         break;
2934         }
2935
2936         if (!s) {
2937                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2938                            " requested reinvocation of an unknown group",
2939                            MAC2STR(sa));
2940                 return P2P_SC_FAIL_UNKNOWN_GROUP;
2941         }
2942
2943         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2944                 *go = 1;
2945                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2946                         wpa_printf(MSG_DEBUG, "P2P: The only available "
2947                                    "interface is already in use - reject "
2948                                    "invitation");
2949                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2950                 }
2951                 if (wpa_s->p2p_mgmt)
2952                         os_memcpy(group_bssid, wpa_s->parent->own_addr,
2953                                   ETH_ALEN);
2954                 else
2955                         os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2956         } else if (s->mode == WPAS_MODE_P2P_GO) {
2957                 *go = 1;
2958                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2959                 {
2960                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2961                                    "interface address for the group");
2962                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2963                 }
2964                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2965                           ETH_ALEN);
2966         }
2967
2968 accept_inv:
2969         wpas_p2p_set_own_freq_preference(wpa_s, 0);
2970
2971         best_freq = 0;
2972         freqs = os_calloc(wpa_s->num_multichan_concurrent,
2973                           sizeof(struct wpa_used_freq_data));
2974         if (freqs) {
2975                 int num_channels = wpa_s->num_multichan_concurrent;
2976                 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2977                 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2978                 os_free(freqs);
2979         }
2980
2981         /* Get one of the frequencies currently in use */
2982         if (best_freq > 0) {
2983                 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2984                 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2985
2986                 if (wpa_s->num_multichan_concurrent < 2 ||
2987                     wpas_p2p_num_unused_channels(wpa_s) < 1) {
2988                         wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2989                         *force_freq = best_freq;
2990                 }
2991         }
2992
2993         if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2994             wpas_p2p_num_unused_channels(wpa_s) > 0) {
2995                 if (*go == 0) {
2996                         /* We are the client */
2997                         wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2998                                    "running a GO but we are capable of MCC, "
2999                                    "figure out the best channel to use");
3000                         *force_freq = 0;
3001                 } else if (!freq_included(wpa_s, channels, *force_freq)) {
3002                         /* We are the GO, and *force_freq is not in the
3003                          * intersection */
3004                         wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3005                                    "in intersection but we are capable of MCC, "
3006                                    "figure out the best channel to use",
3007                                    *force_freq);
3008                         *force_freq = 0;
3009                 }
3010         }
3011
3012         return P2P_SC_SUCCESS;
3013 }
3014
3015
3016 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3017                                      const u8 *ssid, size_t ssid_len,
3018                                      const u8 *go_dev_addr, u8 status,
3019                                      int op_freq)
3020 {
3021         struct wpa_supplicant *wpa_s = ctx;
3022         struct wpa_ssid *s;
3023
3024         for (s = wpa_s->conf->ssid; s; s = s->next) {
3025                 if (s->disabled == 2 &&
3026                     s->ssid_len == ssid_len &&
3027                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
3028                         break;
3029         }
3030
3031         if (status == P2P_SC_SUCCESS) {
3032                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3033                            " was accepted; op_freq=%d MHz, SSID=%s",
3034                            MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
3035                 if (s) {
3036                         int go = s->mode == WPAS_MODE_P2P_GO;
3037                         if (go) {
3038                                 wpa_msg_global(wpa_s, MSG_INFO,
3039                                                P2P_EVENT_INVITATION_ACCEPTED
3040                                                "sa=" MACSTR
3041                                                " persistent=%d freq=%d",
3042                                                MAC2STR(sa), s->id, op_freq);
3043                         } else {
3044                                 wpa_msg_global(wpa_s, MSG_INFO,
3045                                                P2P_EVENT_INVITATION_ACCEPTED
3046                                                "sa=" MACSTR
3047                                                " persistent=%d",
3048                                                MAC2STR(sa), s->id);
3049                         }
3050                         wpas_p2p_group_add_persistent(
3051                                 wpa_s, s, go, 0, op_freq, 0, 0, 0, 0, NULL,
3052                                 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
3053                                 1);
3054                 } else if (bssid) {
3055                         wpa_s->user_initiated_pd = 0;
3056                         wpa_msg_global(wpa_s, MSG_INFO,
3057                                        P2P_EVENT_INVITATION_ACCEPTED
3058                                        "sa=" MACSTR " go_dev_addr=" MACSTR
3059                                        " bssid=" MACSTR " unknown-network",
3060                                        MAC2STR(sa), MAC2STR(go_dev_addr),
3061                                        MAC2STR(bssid));
3062                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
3063                                       wpa_s->p2p_wps_method, 0, op_freq,
3064                                       ssid, ssid_len);
3065                 }
3066                 return;
3067         }
3068
3069         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3070                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3071                            " was rejected (status %u)", MAC2STR(sa), status);
3072                 return;
3073         }
3074
3075         if (!s) {
3076                 if (bssid) {
3077                         wpa_msg_global(wpa_s, MSG_INFO,
3078                                        P2P_EVENT_INVITATION_RECEIVED
3079                                        "sa=" MACSTR " go_dev_addr=" MACSTR
3080                                        " bssid=" MACSTR " unknown-network",
3081                                        MAC2STR(sa), MAC2STR(go_dev_addr),
3082                                        MAC2STR(bssid));
3083                 } else {
3084                         wpa_msg_global(wpa_s, MSG_INFO,
3085                                        P2P_EVENT_INVITATION_RECEIVED
3086                                        "sa=" MACSTR " go_dev_addr=" MACSTR
3087                                        " unknown-network",
3088                                        MAC2STR(sa), MAC2STR(go_dev_addr));
3089                 }
3090                 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3091                                                     bssid, 0, op_freq);
3092                 return;
3093         }
3094
3095         if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
3096                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3097                                "sa=" MACSTR " persistent=%d freq=%d",
3098                                MAC2STR(sa), s->id, op_freq);
3099         } else {
3100                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3101                                "sa=" MACSTR " persistent=%d",
3102                                MAC2STR(sa), s->id);
3103         }
3104         wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3105                                             s->id, op_freq);
3106 }
3107
3108
3109 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3110                                         struct wpa_ssid *ssid,
3111                                         const u8 *peer, int inv)
3112 {
3113         size_t i;
3114         struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
3115
3116         if (ssid == NULL)
3117                 return;
3118
3119         for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3120                 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
3121                               ETH_ALEN) == 0)
3122                         break;
3123         }
3124         if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
3125                 if (ssid->mode != WPAS_MODE_P2P_GO &&
3126                     os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3127                         wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3128                                    "due to invitation result", ssid->id);
3129                         wpas_notify_network_removed(wpa_s, ssid);
3130                         wpa_config_remove_network(wpa_s->conf, ssid->id);
3131                         return;
3132                 }
3133                 return; /* Peer not found in client list */
3134         }
3135
3136         wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
3137                    "group %d client list%s",
3138                    MAC2STR(peer), ssid->id,
3139                    inv ? " due to invitation result" : "");
3140         os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3141                    ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3142                    (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3143         ssid->num_p2p_clients--;
3144         if (p2p_wpa_s->conf->update_config &&
3145             wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
3146                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
3147 }
3148
3149
3150 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3151                                           const u8 *peer)
3152 {
3153         struct wpa_ssid *ssid;
3154
3155         wpa_s = wpa_s->global->p2p_invite_group;
3156         if (wpa_s == NULL)
3157                 return; /* No known invitation group */
3158         ssid = wpa_s->current_ssid;
3159         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3160             !ssid->p2p_persistent_group)
3161                 return; /* Not operating as a GO in persistent group */
3162         ssid = wpas_p2p_get_persistent(wpa_s->p2pdev, peer,
3163                                        ssid->ssid, ssid->ssid_len);
3164         wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3165 }
3166
3167
3168 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3169                                    const struct p2p_channels *channels,
3170                                    const u8 *peer, int neg_freq,
3171                                    int peer_oper_freq)
3172 {
3173         struct wpa_supplicant *wpa_s = ctx;
3174         struct wpa_ssid *ssid;
3175         int freq;
3176
3177         if (bssid) {
3178                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3179                                "status=%d " MACSTR,
3180                                status, MAC2STR(bssid));
3181         } else {
3182                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3183                                "status=%d ", status);
3184         }
3185         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3186
3187         wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3188                    status, MAC2STR(peer));
3189         if (wpa_s->pending_invite_ssid_id == -1) {
3190                 struct wpa_supplicant *group_if =
3191                         wpa_s->global->p2p_invite_group;
3192
3193                 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3194                         wpas_remove_persistent_client(wpa_s, peer);
3195
3196                 /*
3197                  * Invitation to an active group. If this is successful and we
3198                  * are the GO, set the client wait to postpone some concurrent
3199                  * operations and to allow provisioning and connection to happen
3200                  * more quickly.
3201                  */
3202                 if (status == P2P_SC_SUCCESS &&
3203                     group_if && group_if->current_ssid &&
3204                     group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
3205                         os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3206 #ifdef CONFIG_TESTING_OPTIONS
3207                         if (group_if->p2p_go_csa_on_inv) {
3208                                 wpa_printf(MSG_DEBUG,
3209                                            "Testing: force P2P GO CSA after invitation");
3210                                 eloop_cancel_timeout(
3211                                         wpas_p2p_reconsider_moving_go,
3212                                         wpa_s, NULL);
3213                                 eloop_register_timeout(
3214                                         0, 50000,
3215                                         wpas_p2p_reconsider_moving_go,
3216                                         wpa_s, NULL);
3217                         }
3218 #endif /* CONFIG_TESTING_OPTIONS */
3219                 }
3220                 return;
3221         }
3222
3223         if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3224                 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3225                            "invitation exchange to indicate readiness for "
3226                            "re-invocation");
3227         }
3228
3229         if (status != P2P_SC_SUCCESS) {
3230                 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3231                         ssid = wpa_config_get_network(
3232                                 wpa_s->conf, wpa_s->pending_invite_ssid_id);
3233                         wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3234                 }
3235                 wpas_p2p_remove_pending_group_interface(wpa_s);
3236                 return;
3237         }
3238
3239         ssid = wpa_config_get_network(wpa_s->conf,
3240                                       wpa_s->pending_invite_ssid_id);
3241         if (ssid == NULL) {
3242                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3243                            "data matching with invitation");
3244                 return;
3245         }
3246
3247         /*
3248          * The peer could have missed our ctrl::ack frame for Invitation
3249          * Response and continue retransmitting the frame. To reduce the
3250          * likelihood of the peer not getting successful TX status for the
3251          * Invitation Response frame, wait a short time here before starting
3252          * the persistent group so that we will remain on the current channel to
3253          * acknowledge any possible retransmission from the peer.
3254          */
3255         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3256                 "starting persistent group");
3257         os_sleep(0, 50000);
3258
3259         if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3260             freq_included(wpa_s, channels, neg_freq))
3261                 freq = neg_freq;
3262         else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3263                  freq_included(wpa_s, channels, peer_oper_freq))
3264                 freq = peer_oper_freq;
3265         else
3266                 freq = 0;
3267
3268         wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3269                    freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3270         wpas_p2p_group_add_persistent(wpa_s, ssid,
3271                                       ssid->mode == WPAS_MODE_P2P_GO,
3272                                       wpa_s->p2p_persistent_go_freq,
3273                                       freq,
3274                                       wpa_s->p2p_go_vht_center_freq2,
3275                                       wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3276                                       wpa_s->p2p_go_max_oper_chwidth,
3277                                       channels,
3278                                       ssid->mode == WPAS_MODE_P2P_GO ?
3279                                       P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3280                                       0, 1);
3281 }
3282
3283
3284 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3285                                     unsigned int freq)
3286 {
3287         if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3288                 return 1;
3289         return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3290 }
3291
3292
3293 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3294 {
3295         reg->channel[reg->channels] = chan;
3296         reg->channels++;
3297 }
3298
3299
3300 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3301                                      struct p2p_channels *chan,
3302                                      struct p2p_channels *cli_chan)
3303 {
3304         int i, cla = 0;
3305
3306         wpa_s->global->p2p_24ghz_social_channels = 1;
3307
3308         os_memset(cli_chan, 0, sizeof(*cli_chan));
3309
3310         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3311                    "band");
3312
3313         /* Operating class 81 - 2.4 GHz band channels 1..13 */
3314         chan->reg_class[cla].reg_class = 81;
3315         chan->reg_class[cla].channels = 0;
3316         for (i = 0; i < 11; i++) {
3317                 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3318                         wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3319         }
3320         if (chan->reg_class[cla].channels)
3321                 cla++;
3322
3323         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3324                    "band");
3325
3326         /* Operating class 115 - 5 GHz, channels 36-48 */
3327         chan->reg_class[cla].reg_class = 115;
3328         chan->reg_class[cla].channels = 0;
3329         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3330                 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3331         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3332                 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3333         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3334                 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3335         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3336                 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3337         if (chan->reg_class[cla].channels)
3338                 cla++;
3339
3340         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3341                    "band");
3342
3343         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3344         chan->reg_class[cla].reg_class = 124;
3345         chan->reg_class[cla].channels = 0;
3346         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3347                 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3348         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3349                 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3350         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3351                 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3352         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3353                 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3354         if (chan->reg_class[cla].channels)
3355                 cla++;
3356
3357         chan->reg_classes = cla;
3358         return 0;
3359 }
3360
3361
3362 static int has_channel(struct wpa_global *global,
3363                        struct hostapd_hw_modes *mode, u8 chan, int *flags)
3364 {
3365         int i;
3366         unsigned int freq;
3367
3368         freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3369                 chan * 5;
3370         if (wpas_p2p_disallowed_freq(global, freq))
3371                 return NOT_ALLOWED;
3372
3373         for (i = 0; i < mode->num_channels; i++) {
3374                 if (mode->channels[i].chan == chan) {
3375                         if (flags)
3376                                 *flags = mode->channels[i].flag;
3377                         if (mode->channels[i].flag &
3378                             (HOSTAPD_CHAN_DISABLED |
3379                              HOSTAPD_CHAN_RADAR))
3380                                 return NOT_ALLOWED;
3381                         if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3382                                 return NO_IR;
3383                         return ALLOWED;
3384                 }
3385         }
3386
3387         return NOT_ALLOWED;
3388 }
3389
3390
3391 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3392                                      struct hostapd_hw_modes *mode,
3393                                      u8 channel)
3394 {
3395         u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3396         size_t i;
3397
3398         if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3399                 return 0;
3400
3401         for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3402                 /*
3403                  * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3404                  * so the center channel is 6 channels away from the start/end.
3405                  */
3406                 if (channel >= center_channels[i] - 6 &&
3407                     channel <= center_channels[i] + 6)
3408                         return center_channels[i];
3409
3410         return 0;
3411 }
3412
3413
3414 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3415                                                struct hostapd_hw_modes *mode,
3416                                                u8 channel, u8 bw)
3417 {
3418         u8 center_chan;
3419         int i, flags;
3420         enum chan_allowed res, ret = ALLOWED;
3421
3422         center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3423         if (!center_chan)
3424                 return NOT_ALLOWED;
3425         if (center_chan >= 58 && center_chan <= 138)
3426                 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3427
3428         /* check all the channels are available */
3429         for (i = 0; i < 4; i++) {
3430                 int adj_chan = center_chan - 6 + i * 4;
3431
3432                 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3433                 if (res == NOT_ALLOWED)
3434                         return NOT_ALLOWED;
3435                 if (res == NO_IR)
3436                         ret = NO_IR;
3437
3438                 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3439                         return NOT_ALLOWED;
3440                 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3441                         return NOT_ALLOWED;
3442                 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3443                         return NOT_ALLOWED;
3444                 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3445                         return NOT_ALLOWED;
3446         }
3447
3448         return ret;
3449 }
3450
3451
3452 static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3453                                      struct hostapd_hw_modes *mode,
3454                                      u8 channel)
3455 {
3456         u8 center_channels[] = { 50, 114 };
3457         unsigned int i;
3458
3459         if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3460                 return 0;
3461
3462         for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3463                 /*
3464                  * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3465                  * so the center channel is 14 channels away from the start/end.
3466                  */
3467                 if (channel >= center_channels[i] - 14 &&
3468                     channel <= center_channels[i] + 14)
3469                         return center_channels[i];
3470
3471         return 0;
3472 }
3473
3474
3475 static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3476                                                struct hostapd_hw_modes *mode,
3477                                                u8 channel, u8 bw)
3478 {
3479         u8 center_chan;
3480         int i, flags;
3481         enum chan_allowed res, ret = ALLOWED;
3482
3483         center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3484         if (!center_chan)
3485                 return NOT_ALLOWED;
3486         /* VHT 160 MHz uses DFS channels in most countries. */
3487
3488         /* Check all the channels are available */
3489         for (i = 0; i < 8; i++) {
3490                 int adj_chan = center_chan - 14 + i * 4;
3491
3492                 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3493                 if (res == NOT_ALLOWED)
3494                         return NOT_ALLOWED;
3495
3496                 if (res == NO_IR)
3497                         ret = NO_IR;
3498
3499                 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3500                         return NOT_ALLOWED;
3501                 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3502                         return NOT_ALLOWED;
3503                 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3504                         return NOT_ALLOWED;
3505                 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3506                         return NOT_ALLOWED;
3507                 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3508                         return NOT_ALLOWED;
3509                 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3510                         return NOT_ALLOWED;
3511                 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3512                         return NOT_ALLOWED;
3513                 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3514                         return NOT_ALLOWED;
3515         }
3516
3517         return ret;
3518 }
3519
3520
3521 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3522                                                  struct hostapd_hw_modes *mode,
3523                                                  u8 channel, u8 bw)
3524 {
3525         int flag = 0;
3526         enum chan_allowed res, res2;
3527
3528         res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3529         if (bw == BW40MINUS) {
3530                 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3531                         return NOT_ALLOWED;
3532                 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3533         } else if (bw == BW40PLUS) {
3534                 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3535                         return NOT_ALLOWED;
3536                 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3537         } else if (bw == BW80) {
3538                 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3539         } else if (bw == BW160) {
3540                 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
3541         }
3542
3543         if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3544                 return NOT_ALLOWED;
3545         if (res == NO_IR || res2 == NO_IR)
3546                 return NO_IR;
3547         return res;
3548 }
3549
3550
3551 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3552                                    struct p2p_channels *chan,
3553                                    struct p2p_channels *cli_chan)
3554 {
3555         struct hostapd_hw_modes *mode;
3556         int cla, op, cli_cla;
3557
3558         if (wpa_s->hw.modes == NULL) {
3559                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3560                            "of all supported channels; assume dualband "
3561                            "support");
3562                 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3563         }
3564
3565         cla = cli_cla = 0;
3566
3567         for (op = 0; global_op_class[op].op_class; op++) {
3568                 const struct oper_class_map *o = &global_op_class[op];
3569                 u8 ch;
3570                 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3571
3572                 if (o->p2p == NO_P2P_SUPP)
3573                         continue;
3574
3575                 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3576                 if (mode == NULL)
3577                         continue;
3578                 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3579                         wpa_s->global->p2p_24ghz_social_channels = 1;
3580                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3581                         enum chan_allowed res;
3582                         res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3583                         if (res == ALLOWED) {
3584                                 if (reg == NULL) {
3585                                         wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3586                                                    o->op_class);
3587                                         reg = &chan->reg_class[cla];
3588                                         cla++;
3589                                         reg->reg_class = o->op_class;
3590                                 }
3591                                 reg->channel[reg->channels] = ch;
3592                                 reg->channels++;
3593                         } else if (res == NO_IR &&
3594                                    wpa_s->conf->p2p_add_cli_chan) {
3595                                 if (cli_reg == NULL) {
3596                                         wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3597                                                    o->op_class);
3598                                         cli_reg = &cli_chan->reg_class[cli_cla];
3599                                         cli_cla++;
3600                                         cli_reg->reg_class = o->op_class;
3601                                 }
3602                                 cli_reg->channel[cli_reg->channels] = ch;
3603                                 cli_reg->channels++;
3604                         }
3605                 }
3606                 if (reg) {
3607                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3608                                     reg->channel, reg->channels);
3609                 }
3610                 if (cli_reg) {
3611                         wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3612                                     cli_reg->channel, cli_reg->channels);
3613                 }
3614         }
3615
3616         chan->reg_classes = cla;
3617         cli_chan->reg_classes = cli_cla;
3618
3619         return 0;
3620 }
3621
3622
3623 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3624                            struct hostapd_hw_modes *mode, u8 channel)
3625 {
3626         int op;
3627         enum chan_allowed ret;
3628
3629         for (op = 0; global_op_class[op].op_class; op++) {
3630                 const struct oper_class_map *o = &global_op_class[op];
3631                 u8 ch;
3632
3633                 if (o->p2p == NO_P2P_SUPP)
3634                         continue;
3635
3636                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3637                         if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3638                             (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3639                             ch != channel)
3640                                 continue;
3641                         ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3642                         if (ret == ALLOWED)
3643                                 return (o->bw == BW40MINUS) ? -1 : 1;
3644                 }
3645         }
3646         return 0;
3647 }
3648
3649
3650 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3651                               struct hostapd_hw_modes *mode, u8 channel)
3652 {
3653         if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3654                 return 0;
3655
3656         return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3657 }
3658
3659
3660 int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3661                                struct hostapd_hw_modes *mode, u8 channel)
3662 {
3663         if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3664                 return 0;
3665         return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3666 }
3667
3668
3669 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3670                         size_t buf_len)
3671 {
3672         struct wpa_supplicant *wpa_s = ctx;
3673
3674         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3675                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3676                         break;
3677         }
3678         if (wpa_s == NULL)
3679                 return -1;
3680
3681         return wpa_drv_get_noa(wpa_s, buf, buf_len);
3682 }
3683
3684
3685 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3686                                               const u8 *ssid, size_t ssid_len)
3687 {
3688         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3689                 struct wpa_ssid *s = wpa_s->current_ssid;
3690                 if (s == NULL)
3691                         continue;
3692                 if (s->mode != WPAS_MODE_P2P_GO &&
3693                     s->mode != WPAS_MODE_AP &&
3694                     s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3695                         continue;
3696                 if (s->ssid_len != ssid_len ||
3697                     os_memcmp(ssid, s->ssid, ssid_len) != 0)
3698                         continue;
3699                 return wpa_s;
3700         }
3701
3702         return NULL;
3703
3704 }
3705
3706
3707 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3708                                                   const u8 *peer_dev_addr)
3709 {
3710         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3711                 struct wpa_ssid *ssid = wpa_s->current_ssid;
3712                 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3713                         continue;
3714                 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3715                         return wpa_s;
3716         }
3717
3718         return NULL;
3719 }
3720
3721
3722 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3723 {
3724         struct wpa_supplicant *wpa_s = ctx;
3725
3726         return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3727 }
3728
3729
3730 static int wpas_is_concurrent_session_active(void *ctx)
3731 {
3732         struct wpa_supplicant *wpa_s = ctx;
3733         struct wpa_supplicant *ifs;
3734
3735         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3736                 if (ifs == wpa_s)
3737                         continue;
3738                 if (ifs->wpa_state > WPA_ASSOCIATED)
3739                         return 1;
3740         }
3741         return 0;
3742 }
3743
3744
3745 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3746 {
3747         struct wpa_supplicant *wpa_s = ctx;
3748         wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3749 }
3750
3751
3752 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3753                                   const char *conf_p2p_dev)
3754 {
3755         struct wpa_interface iface;
3756         struct wpa_supplicant *p2pdev_wpa_s;
3757         char ifname[100];
3758         char force_name[100];
3759         int ret;
3760
3761         ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3762                           wpa_s->ifname);
3763         if (os_snprintf_error(sizeof(ifname), ret))
3764                 return -1;
3765         force_name[0] = '\0';
3766         wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3767         ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3768                              force_name, wpa_s->pending_interface_addr, NULL);
3769         if (ret < 0) {
3770                 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3771                 return ret;
3772         }
3773         os_strlcpy(wpa_s->pending_interface_name, ifname,
3774                    sizeof(wpa_s->pending_interface_name));
3775
3776         os_memset(&iface, 0, sizeof(iface));
3777         iface.p2p_mgmt = 1;
3778         iface.ifname = wpa_s->pending_interface_name;
3779         iface.driver = wpa_s->driver->name;
3780         iface.driver_param = wpa_s->conf->driver_param;
3781
3782         /*
3783          * If a P2P Device configuration file was given, use it as the interface
3784          * configuration file (instead of using parent's configuration file.
3785          */
3786         if (conf_p2p_dev) {
3787                 iface.confname = conf_p2p_dev;
3788                 iface.ctrl_interface = NULL;
3789         } else {
3790                 iface.confname = wpa_s->confname;
3791                 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3792         }
3793
3794         p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3795         if (!p2pdev_wpa_s) {
3796                 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3797                 return -1;
3798         }
3799
3800         p2pdev_wpa_s->p2pdev = p2pdev_wpa_s;
3801         wpa_s->pending_interface_name[0] = '\0';
3802         return 0;
3803 }
3804
3805
3806 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3807                                const u8 *noa, size_t noa_len)
3808 {
3809         struct wpa_supplicant *wpa_s, *intf = ctx;
3810         char hex[100];
3811
3812         for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3813                 if (wpa_s->waiting_presence_resp)
3814                         break;
3815         }
3816         if (!wpa_s) {
3817                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3818                 return;
3819         }
3820         wpa_s->waiting_presence_resp = 0;
3821
3822         wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3823         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3824                 " status=%u noa=%s", MAC2STR(src), status, hex);
3825 }
3826
3827
3828 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3829                                      size_t ssid_len, u8 *go_dev_addr,
3830                                      u8 *ret_ssid, size_t *ret_ssid_len,
3831                                      u8 *intended_iface_addr)
3832 {
3833         struct wpa_supplicant *wpa_s = ctx;
3834         struct wpa_ssid *s;
3835
3836         s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3837         if (s) {
3838                 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3839                 *ret_ssid_len = s->ssid_len;
3840                 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3841
3842                 if (s->mode != WPAS_MODE_P2P_GO) {
3843                         os_memset(intended_iface_addr, 0, ETH_ALEN);
3844                 } else if (wpas_p2p_create_iface(wpa_s)) {
3845                         if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3846                                 return 0;
3847
3848                         os_memcpy(intended_iface_addr,
3849                                   wpa_s->pending_interface_addr, ETH_ALEN);
3850                 } else {
3851                         os_memcpy(intended_iface_addr, wpa_s->own_addr,
3852                                   ETH_ALEN);
3853                 }
3854                 return 1;
3855         }
3856
3857         return 0;
3858 }
3859
3860
3861 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3862                             u8 *ssid, size_t *ssid_len, int *group_iface,
3863                             unsigned int *freq)
3864 {
3865         struct wpa_supplicant *wpa_s = ctx;
3866         struct wpa_supplicant *go;
3867         struct wpa_ssid *s;
3868
3869         /*
3870          * group_iface will be set to 1 only if a dedicated interface for P2P
3871          * role is required. First, we try to reuse an active GO. However,
3872          * if it is not present, we will try to reactivate an existing
3873          * persistent group and set group_iface to 1, so the caller will know
3874          * that the pending interface should be used.
3875          */
3876         *group_iface = 0;
3877
3878         if (freq)
3879                 *freq = 0;
3880
3881         go = wpas_p2p_get_go_group(wpa_s);
3882         if (!go) {
3883                 s = wpas_p2p_get_persistent_go(wpa_s);
3884                 *group_iface = wpas_p2p_create_iface(wpa_s);
3885                 if (s)
3886                         os_memcpy(intended_addr, s->bssid, ETH_ALEN);
3887                 else
3888                         return 0;
3889         } else {
3890                 s = go->current_ssid;
3891                 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3892                 if (freq)
3893                         *freq = go->assoc_freq;
3894         }
3895
3896         os_memcpy(ssid, s->ssid, s->ssid_len);
3897         *ssid_len = s->ssid_len;
3898
3899         return 1;
3900 }
3901
3902
3903 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3904                                     const u8 *ssid, size_t ssid_len)
3905 {
3906         struct wpa_supplicant *wpa_s = ctx;
3907         struct wpa_ssid *s;
3908         int save_config = 0;
3909         size_t i;
3910
3911         /* Start with our first choice of Persistent Groups */
3912         while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3913                 if (go && ssid && ssid_len &&
3914                     s->ssid_len == ssid_len &&
3915                     os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3916                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
3917                         break;
3918
3919                 /* Remove stale persistent group */
3920                 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3921                         wpa_config_remove_network(wpa_s->conf, s->id);
3922                         save_config = 1;
3923                         continue;
3924                 }
3925
3926                 for (i = 0; i < s->num_p2p_clients; i++) {
3927                         if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3928                                       peer, ETH_ALEN) != 0)
3929                                 continue;
3930
3931                         os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3932                                    s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3933                                    (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3934                         break;
3935                 }
3936                 s->num_p2p_clients--;
3937                 save_config = 1;
3938         }
3939
3940         if (save_config)
3941                 p2p_config_write(wpa_s);
3942
3943         /* Return TRUE if valid SSID remains */
3944         return s != NULL;
3945 }
3946
3947
3948 static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3949                                        const u8 *feat_cap, size_t feat_cap_len)
3950 {
3951         static const char pref[] = " feature_cap=";
3952         int ret;
3953
3954         buf[0] = '\0';
3955
3956         /*
3957          * We expect a feature capability to contain at least one byte to be
3958          * reported. The string buffer provided by the caller function is
3959          * expected to be big enough to contain all bytes of the attribute for
3960          * known specifications. This function truncates the reported bytes if
3961          * the feature capability data exceeds the string buffer size.
3962          */
3963         if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3964                 return;
3965
3966         os_memcpy(buf, pref, sizeof(pref));
3967         ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3968                                buf_len - sizeof(pref) + 1,
3969                                feat_cap, feat_cap_len);
3970
3971         if (ret != (2 * (int) feat_cap_len))
3972                 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3973 }
3974
3975
3976 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3977                                     const u8 *adv_mac, const u8 *ses_mac,
3978                                     const u8 *grp_mac, u32 adv_id, u32 ses_id,
3979                                     u8 conncap, int passwd_id,
3980                                     const u8 *persist_ssid,
3981                                     size_t persist_ssid_size, int response_done,
3982                                     int prov_start, const char *session_info,
3983                                     const u8 *feat_cap, size_t feat_cap_len,
3984                                     unsigned int freq,
3985                                     const u8 *group_ssid, size_t group_ssid_len)
3986 {
3987         struct wpa_supplicant *wpa_s = ctx;
3988         u8 mac[ETH_ALEN];
3989         struct wpa_ssid *persistent_go, *stale, *s = NULL;
3990         int save_config = 0;
3991         struct wpa_supplicant *go_wpa_s;
3992         char feat_cap_str[256];
3993
3994         if (!dev)
3995                 return;
3996
3997         os_memset(mac, 0, ETH_ALEN);
3998         if (!adv_mac)
3999                 adv_mac = mac;
4000         if (!ses_mac)
4001                 ses_mac = mac;
4002         if (!grp_mac)
4003                 grp_mac = mac;
4004
4005         wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
4006                                    feat_cap, feat_cap_len);
4007
4008         if (prov_start) {
4009                 if (session_info == NULL) {
4010                         wpa_msg_global(wpa_s, MSG_INFO,
4011                                        P2P_EVENT_P2PS_PROVISION_START MACSTR
4012                                        " adv_id=%x conncap=%x"
4013                                        " adv_mac=" MACSTR
4014                                        " session=%x mac=" MACSTR
4015                                        " dev_passwd_id=%d%s",
4016                                        MAC2STR(dev), adv_id, conncap,
4017                                        MAC2STR(adv_mac),
4018                                        ses_id, MAC2STR(ses_mac),
4019                                        passwd_id, feat_cap_str);
4020                 } else {
4021                         wpa_msg_global(wpa_s, MSG_INFO,
4022                                        P2P_EVENT_P2PS_PROVISION_START MACSTR
4023                                        " adv_id=%x conncap=%x"
4024                                        " adv_mac=" MACSTR
4025                                        " session=%x mac=" MACSTR
4026                                        " dev_passwd_id=%d info='%s'%s",
4027                                        MAC2STR(dev), adv_id, conncap,
4028                                        MAC2STR(adv_mac),
4029                                        ses_id, MAC2STR(ses_mac),
4030                                        passwd_id, session_info, feat_cap_str);
4031                 }
4032                 return;
4033         }
4034
4035         go_wpa_s = wpas_p2p_get_go_group(wpa_s);
4036         persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4037
4038         if (status && status != P2P_SC_SUCCESS_DEFERRED) {
4039                 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4040                         wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4041
4042                 if (persistent_go && !persistent_go->num_p2p_clients) {
4043                         /* remove empty persistent GO */
4044                         wpa_config_remove_network(wpa_s->conf,
4045                                                   persistent_go->id);
4046                 }
4047
4048                 wpa_msg_global(wpa_s, MSG_INFO,
4049                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4050                                " status=%d"
4051                                " adv_id=%x adv_mac=" MACSTR
4052                                " session=%x mac=" MACSTR "%s",
4053                                MAC2STR(dev), status,
4054                                adv_id, MAC2STR(adv_mac),
4055                                ses_id, MAC2STR(ses_mac), feat_cap_str);
4056                 return;
4057         }
4058
4059         /* Clean up stale persistent groups with this device */
4060         if (persist_ssid && persist_ssid_size)
4061                 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4062                                             persist_ssid_size);
4063
4064         if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
4065             is_zero_ether_addr(grp_mac)) {
4066                 wpa_dbg(wpa_s, MSG_ERROR,
4067                         "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4068                 return;
4069         }
4070
4071         for (;;) {
4072                 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4073                 if (!stale)
4074                         break;
4075
4076                 if (s && s->ssid_len == stale->ssid_len &&
4077                     os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4078                     os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4079                         break;
4080
4081                 /* Remove stale persistent group */
4082                 if (stale->mode != WPAS_MODE_P2P_GO ||
4083                     stale->num_p2p_clients <= 1) {
4084                         wpa_config_remove_network(wpa_s->conf, stale->id);
4085                 } else {
4086                         size_t i;
4087
4088                         for (i = 0; i < stale->num_p2p_clients; i++) {
4089                                 if (os_memcmp(stale->p2p_client_list +
4090                                               i * ETH_ALEN,
4091                                               dev, ETH_ALEN) == 0) {
4092                                         os_memmove(stale->p2p_client_list +
4093                                                    i * ETH_ALEN,
4094                                                    stale->p2p_client_list +
4095                                                    (i + 1) * ETH_ALEN,
4096                                                    (stale->num_p2p_clients -
4097                                                     i - 1) * ETH_ALEN);
4098                                         break;
4099                                 }
4100                         }
4101                         stale->num_p2p_clients--;
4102                 }
4103                 save_config = 1;
4104         }
4105
4106         if (save_config)
4107                 p2p_config_write(wpa_s);
4108
4109         if (s) {
4110                 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4111                         wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4112
4113                 if (persistent_go && s != persistent_go &&
4114                     !persistent_go->num_p2p_clients) {
4115                         /* remove empty persistent GO */
4116                         wpa_config_remove_network(wpa_s->conf,
4117                                                   persistent_go->id);
4118                         /* Save config */
4119                 }
4120
4121                 wpa_msg_global(wpa_s, MSG_INFO,
4122                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4123                                " status=%d"
4124                                " adv_id=%x adv_mac=" MACSTR
4125                                " session=%x mac=" MACSTR
4126                                " persist=%d%s",
4127                                MAC2STR(dev), status,
4128                                adv_id, MAC2STR(adv_mac),
4129                                ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
4130                 return;
4131         }
4132
4133         if (conncap == P2PS_SETUP_GROUP_OWNER) {
4134                 /*
4135                  * We need to copy the interface name. Simply saving a
4136                  * pointer isn't enough, since if we use pending_interface_name
4137                  * it will be overwritten when the group is added.
4138                  */
4139                 char go_ifname[100];
4140
4141                 go_ifname[0] = '\0';
4142                 if (!go_wpa_s) {
4143                         wpa_s->global->pending_p2ps_group = 1;
4144                         wpa_s->global->pending_p2ps_group_freq = freq;
4145
4146                         if (!wpas_p2p_create_iface(wpa_s))
4147                                 os_memcpy(go_ifname, wpa_s->ifname,
4148                                           sizeof(go_ifname));
4149                         else if (wpa_s->pending_interface_name[0])
4150                                 os_memcpy(go_ifname,
4151                                           wpa_s->pending_interface_name,
4152                                           sizeof(go_ifname));
4153
4154                         if (!go_ifname[0]) {
4155                                 wpas_p2ps_prov_complete(
4156                                         wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4157                                         dev, adv_mac, ses_mac,
4158                                         grp_mac, adv_id, ses_id, 0, 0,
4159                                         NULL, 0, 0, 0, NULL, NULL, 0, 0,
4160                                         NULL, 0);
4161                                 return;
4162                         }
4163
4164                         /* If PD Resp complete, start up the GO */
4165                         if (response_done && persistent_go) {
4166                                 wpas_p2p_group_add_persistent(
4167                                         wpa_s, persistent_go,
4168                                         0, 0, freq, 0, 0, 0, 0, NULL,
4169                                         persistent_go->mode ==
4170                                         WPAS_MODE_P2P_GO ?
4171                                         P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
4172                                         0, 0);
4173                         } else if (response_done) {
4174                                 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4175                         }
4176
4177                         if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4178                                 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4179                                           ETH_ALEN);
4180                                 wpa_s->p2ps_method_config_any = 1;
4181                         }
4182                 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
4183                         os_memcpy(go_ifname, go_wpa_s->ifname,
4184                                   sizeof(go_ifname));
4185
4186                         if (is_zero_ether_addr(grp_mac)) {
4187                                 wpa_dbg(go_wpa_s, MSG_DEBUG,
4188                                         "P2P: Setting PIN-1 for ANY");
4189                                 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4190                                                           "12345670", NULL, 0,
4191                                                           0);
4192                         } else {
4193                                 wpa_dbg(go_wpa_s, MSG_DEBUG,
4194                                         "P2P: Setting PIN-1 for " MACSTR,
4195                                         MAC2STR(grp_mac));
4196                                 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4197                                                           "12345670", NULL, 0,
4198                                                           0);
4199                         }
4200
4201                         os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4202                         wpa_s->p2ps_method_config_any = 1;
4203                 }
4204
4205                 wpa_msg_global(wpa_s, MSG_INFO,
4206                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4207                                " status=%d conncap=%x"
4208                                " adv_id=%x adv_mac=" MACSTR
4209                                " session=%x mac=" MACSTR
4210                                " dev_passwd_id=%d go=%s%s",
4211                                MAC2STR(dev), status, conncap,
4212                                adv_id, MAC2STR(adv_mac),
4213                                ses_id, MAC2STR(ses_mac),
4214                                passwd_id, go_ifname, feat_cap_str);
4215                 return;
4216         }
4217
4218         if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4219                 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4220
4221         if (persistent_go && !persistent_go->num_p2p_clients) {
4222                 /* remove empty persistent GO */
4223                 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4224         }
4225
4226         if (conncap == P2PS_SETUP_CLIENT) {
4227                 char ssid_hex[32 * 2 + 1];
4228
4229                 if (group_ssid)
4230                         wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
4231                                          group_ssid, group_ssid_len);
4232                 else
4233                         ssid_hex[0] = '\0';
4234                 wpa_msg_global(wpa_s, MSG_INFO,
4235                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4236                                " status=%d conncap=%x"
4237                                " adv_id=%x adv_mac=" MACSTR
4238                                " session=%x mac=" MACSTR
4239                                " dev_passwd_id=%d join=" MACSTR "%s%s%s",
4240                                MAC2STR(dev), status, conncap,
4241                                adv_id, MAC2STR(adv_mac),
4242                                ses_id, MAC2STR(ses_mac),
4243                                passwd_id, MAC2STR(grp_mac), feat_cap_str,
4244                                group_ssid ? " group_ssid=" : "", ssid_hex);
4245         } else {
4246                 wpa_msg_global(wpa_s, MSG_INFO,
4247                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4248                                " status=%d conncap=%x"
4249                                " adv_id=%x adv_mac=" MACSTR
4250                                " session=%x mac=" MACSTR
4251                                " dev_passwd_id=%d%s",
4252                                MAC2STR(dev), status, conncap,
4253                                adv_id, MAC2STR(adv_mac),
4254                                ses_id, MAC2STR(ses_mac),
4255                                passwd_id, feat_cap_str);
4256         }
4257 }
4258
4259
4260 static int _wpas_p2p_in_progress(void *ctx)
4261 {
4262         struct wpa_supplicant *wpa_s = ctx;
4263         return wpas_p2p_in_progress(wpa_s);
4264 }
4265
4266
4267 static int wpas_prov_disc_resp_cb(void *ctx)
4268 {
4269         struct wpa_supplicant *wpa_s = ctx;
4270         struct wpa_ssid *persistent_go;
4271         unsigned int freq;
4272
4273         if (!wpa_s->global->pending_p2ps_group)
4274                 return 0;
4275
4276         freq = wpa_s->global->pending_p2ps_group_freq;
4277         wpa_s->global->pending_p2ps_group_freq = 0;
4278         wpa_s->global->pending_p2ps_group = 0;
4279
4280         if (wpas_p2p_get_go_group(wpa_s))
4281                 return 0;
4282         persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4283
4284         if (persistent_go) {
4285                 wpas_p2p_group_add_persistent(
4286                         wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, NULL,
4287                         persistent_go->mode == WPAS_MODE_P2P_GO ?
4288                         P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4289         } else {
4290                 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0);
4291         }
4292
4293         return 1;
4294 }
4295
4296
4297 static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4298                                        unsigned int *len,
4299                                        unsigned int *freq_list)
4300 {
4301         struct wpa_supplicant *wpa_s = ctx;
4302
4303         return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4304                                           WPA_IF_P2P_CLIENT, len, freq_list);
4305 }
4306
4307
4308 /**
4309  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4310  * @global: Pointer to global data from wpa_supplicant_init()
4311  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4312  * Returns: 0 on success, -1 on failure
4313  */
4314 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4315 {
4316         struct p2p_config p2p;
4317         int i;
4318
4319         if (wpa_s->conf->p2p_disabled)
4320                 return 0;
4321
4322         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4323                 return 0;
4324
4325         if (global->p2p)
4326                 return 0;
4327
4328         os_memset(&p2p, 0, sizeof(p2p));
4329         p2p.cb_ctx = wpa_s;
4330         p2p.debug_print = wpas_p2p_debug_print;
4331         p2p.p2p_scan = wpas_p2p_scan;
4332         p2p.send_action = wpas_send_action;
4333         p2p.send_action_done = wpas_send_action_done;
4334         p2p.go_neg_completed = wpas_go_neg_completed;
4335         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4336         p2p.dev_found = wpas_dev_found;
4337         p2p.dev_lost = wpas_dev_lost;
4338         p2p.find_stopped = wpas_find_stopped;
4339         p2p.start_listen = wpas_start_listen;
4340         p2p.stop_listen = wpas_stop_listen;
4341         p2p.send_probe_resp = wpas_send_probe_resp;
4342         p2p.sd_request = wpas_sd_request;
4343         p2p.sd_response = wpas_sd_response;
4344         p2p.prov_disc_req = wpas_prov_disc_req;
4345         p2p.prov_disc_resp = wpas_prov_disc_resp;
4346         p2p.prov_disc_fail = wpas_prov_disc_fail;
4347         p2p.invitation_process = wpas_invitation_process;
4348         p2p.invitation_received = wpas_invitation_received;
4349         p2p.invitation_result = wpas_invitation_result;
4350         p2p.get_noa = wpas_get_noa;
4351         p2p.go_connected = wpas_go_connected;
4352         p2p.presence_resp = wpas_presence_resp;
4353         p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4354         p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4355         p2p.get_persistent_group = wpas_get_persistent_group;
4356         p2p.get_go_info = wpas_get_go_info;
4357         p2p.remove_stale_groups = wpas_remove_stale_groups;
4358         p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4359         p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4360         p2p.p2ps_group_capability = p2ps_group_capability;
4361         p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4362
4363         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4364         os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4365         p2p.dev_name = wpa_s->conf->device_name;
4366         p2p.manufacturer = wpa_s->conf->manufacturer;
4367         p2p.model_name = wpa_s->conf->model_name;
4368         p2p.model_number = wpa_s->conf->model_number;
4369         p2p.serial_number = wpa_s->conf->serial_number;
4370         if (wpa_s->wps) {
4371                 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4372                 p2p.config_methods = wpa_s->wps->config_methods;
4373         }
4374
4375         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4376                 wpa_printf(MSG_ERROR,
4377                            "P2P: Failed to configure supported channel list");
4378                 return -1;
4379         }
4380
4381         if (wpa_s->conf->p2p_listen_reg_class &&
4382             wpa_s->conf->p2p_listen_channel) {
4383                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4384                 p2p.channel = wpa_s->conf->p2p_listen_channel;
4385                 p2p.channel_forced = 1;
4386         } else {
4387                 /*
4388                  * Pick one of the social channels randomly as the listen
4389                  * channel.
4390                  */
4391                 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4392                                                  &p2p.channel) != 0) {
4393                         wpa_printf(MSG_INFO,
4394                                    "P2P: No social channels supported by the driver - do not enable P2P");
4395                         return 0;
4396                 }
4397                 p2p.channel_forced = 0;
4398         }
4399         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4400                    p2p.reg_class, p2p.channel);
4401
4402         if (wpa_s->conf->p2p_oper_reg_class &&
4403             wpa_s->conf->p2p_oper_channel) {
4404                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4405                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4406                 p2p.cfg_op_channel = 1;
4407                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4408                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
4409
4410         } else {
4411                 /*
4412                  * Use random operation channel from 2.4 GHz band social
4413                  * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4414                  * other preference is indicated.
4415                  */
4416                 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4417                                                  &p2p.op_channel) != 0) {
4418                         wpa_printf(MSG_ERROR,
4419                                    "P2P: Failed to select random social channel as operation channel");
4420                         return -1;
4421                 }
4422                 p2p.cfg_op_channel = 0;
4423                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4424                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
4425         }
4426
4427         if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4428                 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4429                 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4430         }
4431
4432         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4433                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4434                 p2p.country[2] = 0x04;
4435         } else
4436                 os_memcpy(p2p.country, "XX\x04", 3);
4437
4438         os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4439                   WPS_DEV_TYPE_LEN);
4440
4441         p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4442         os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4443                   p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4444
4445         p2p.concurrent_operations = !!(wpa_s->drv_flags &
4446                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4447
4448         p2p.max_peers = 100;
4449
4450         if (wpa_s->conf->p2p_ssid_postfix) {
4451                 p2p.ssid_postfix_len =
4452                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
4453                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4454                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4455                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4456                           p2p.ssid_postfix_len);
4457         }
4458
4459         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4460
4461         p2p.max_listen = wpa_s->max_remain_on_chan;
4462
4463         if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4464             wpa_s->conf->p2p_passphrase_len <= 63)
4465                 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4466         else
4467                 p2p.passphrase_len = 8;
4468
4469         global->p2p = p2p_init(&p2p);
4470         if (global->p2p == NULL)
4471                 return -1;
4472         global->p2p_init_wpa_s = wpa_s;
4473
4474         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4475                 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4476                         continue;
4477                 p2p_add_wps_vendor_extension(
4478                         global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4479         }
4480
4481         p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4482
4483         return 0;
4484 }
4485
4486
4487 /**
4488  * wpas_p2p_deinit - Deinitialize per-interface P2P data
4489  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4490  *
4491  * This function deinitialize per-interface P2P data.
4492  */
4493 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4494 {
4495         if (wpa_s->driver && wpa_s->drv_priv)
4496                 wpa_drv_probe_req_report(wpa_s, 0);
4497
4498         if (wpa_s->go_params) {
4499                 /* Clear any stored provisioning info */
4500                 p2p_clear_provisioning_info(
4501                         wpa_s->global->p2p,
4502                         wpa_s->go_params->peer_device_addr);
4503         }
4504
4505         os_free(wpa_s->go_params);
4506         wpa_s->go_params = NULL;
4507         eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4508         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4509         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4510         wpa_s->p2p_long_listen = 0;
4511         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4512         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4513         wpas_p2p_remove_pending_group_interface(wpa_s);
4514         eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4515         wpas_p2p_listen_work_done(wpa_s);
4516         if (wpa_s->p2p_send_action_work) {
4517                 os_free(wpa_s->p2p_send_action_work->ctx);
4518                 radio_work_done(wpa_s->p2p_send_action_work);
4519                 wpa_s->p2p_send_action_work = NULL;
4520         }
4521         eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4522
4523         wpabuf_free(wpa_s->p2p_oob_dev_pw);
4524         wpa_s->p2p_oob_dev_pw = NULL;
4525
4526         os_free(wpa_s->p2p_group_common_freqs);
4527         wpa_s->p2p_group_common_freqs = NULL;
4528         wpa_s->p2p_group_common_freqs_num = 0;
4529
4530         /* TODO: remove group interface from the driver if this wpa_s instance
4531          * is on top of a P2P group interface */
4532 }
4533
4534
4535 /**
4536  * wpas_p2p_deinit_global - Deinitialize global P2P module
4537  * @global: Pointer to global data from wpa_supplicant_init()
4538  *
4539  * This function deinitializes the global (per device) P2P module.
4540  */
4541 static void wpas_p2p_deinit_global(struct wpa_global *global)
4542 {
4543         struct wpa_supplicant *wpa_s, *tmp;
4544
4545         wpa_s = global->ifaces;
4546
4547         wpas_p2p_service_flush(global->p2p_init_wpa_s);
4548
4549         /* Remove remaining P2P group interfaces */
4550         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4551                 wpa_s = wpa_s->next;
4552         while (wpa_s) {
4553                 tmp = global->ifaces;
4554                 while (tmp &&
4555                        (tmp == wpa_s ||
4556                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4557                         tmp = tmp->next;
4558                 }
4559                 if (tmp == NULL)
4560                         break;
4561                 /* Disconnect from the P2P group and deinit the interface */
4562                 wpas_p2p_disconnect(tmp);
4563         }
4564
4565         /*
4566          * Deinit GO data on any possibly remaining interface (if main
4567          * interface is used as GO).
4568          */
4569         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4570                 if (wpa_s->ap_iface)
4571                         wpas_p2p_group_deinit(wpa_s);
4572         }
4573
4574         p2p_deinit(global->p2p);
4575         global->p2p = NULL;
4576         global->p2p_init_wpa_s = NULL;
4577 }
4578
4579
4580 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4581 {
4582         if (wpa_s->conf->p2p_no_group_iface)
4583                 return 0; /* separate interface disabled per configuration */
4584         if (wpa_s->drv_flags &
4585             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4586              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4587                 return 1; /* P2P group requires a new interface in every case
4588                            */
4589         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4590                 return 0; /* driver does not support concurrent operations */
4591         if (wpa_s->global->ifaces->next)
4592                 return 1; /* more that one interface already in use */
4593         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4594                 return 1; /* this interface is already in use */
4595         return 0;
4596 }
4597
4598
4599 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4600                                  const u8 *peer_addr,
4601                                  enum p2p_wps_method wps_method,
4602                                  int go_intent, const u8 *own_interface_addr,
4603                                  unsigned int force_freq, int persistent_group,
4604                                  struct wpa_ssid *ssid, unsigned int pref_freq)
4605 {
4606         if (persistent_group && wpa_s->conf->persistent_reconnect)
4607                 persistent_group = 2;
4608
4609         /*
4610          * Increase GO config timeout if HT40 is used since it takes some time
4611          * to scan channels for coex purposes before the BSS can be started.
4612          */
4613         p2p_set_config_timeout(wpa_s->global->p2p,
4614                                wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4615
4616         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4617                            go_intent, own_interface_addr, force_freq,
4618                            persistent_group, ssid ? ssid->ssid : NULL,
4619                            ssid ? ssid->ssid_len : 0,
4620                            wpa_s->p2p_pd_before_go_neg, pref_freq,
4621                            wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4622                            0);
4623 }
4624
4625
4626 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4627                                 const u8 *peer_addr,
4628                                 enum p2p_wps_method wps_method,
4629                                 int go_intent, const u8 *own_interface_addr,
4630                                 unsigned int force_freq, int persistent_group,
4631                                 struct wpa_ssid *ssid, unsigned int pref_freq)
4632 {
4633         if (persistent_group && wpa_s->conf->persistent_reconnect)
4634                 persistent_group = 2;
4635
4636         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4637                              go_intent, own_interface_addr, force_freq,
4638                              persistent_group, ssid ? ssid->ssid : NULL,
4639                              ssid ? ssid->ssid_len : 0, pref_freq,
4640                              wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4641                              0);
4642 }
4643
4644
4645 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4646 {
4647         wpa_s->p2p_join_scan_count++;
4648         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4649                    wpa_s->p2p_join_scan_count);
4650         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4651                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4652                            " for join operationg - stop join attempt",
4653                            MAC2STR(wpa_s->pending_join_iface_addr));
4654                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4655                 if (wpa_s->p2p_auto_pd) {
4656                         wpa_s->p2p_auto_pd = 0;
4657                         wpa_msg_global(wpa_s, MSG_INFO,
4658                                        P2P_EVENT_PROV_DISC_FAILURE
4659                                        " p2p_dev_addr=" MACSTR " status=N/A",
4660                                        MAC2STR(wpa_s->pending_join_dev_addr));
4661                         return;
4662                 }
4663                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4664                                P2P_EVENT_GROUP_FORMATION_FAILURE);
4665                 wpas_notify_p2p_group_formation_failure(wpa_s, "");
4666         }
4667 }
4668
4669
4670 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4671 {
4672         int res;
4673         unsigned int num, i;
4674         struct wpa_used_freq_data *freqs;
4675
4676         if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4677                 /* Multiple channels are supported and not all are in use */
4678                 return 0;
4679         }
4680
4681         freqs = os_calloc(wpa_s->num_multichan_concurrent,
4682                           sizeof(struct wpa_used_freq_data));
4683         if (!freqs)
4684                 return 1;
4685
4686         num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4687                                         wpa_s->num_multichan_concurrent);
4688
4689         for (i = 0; i < num; i++) {
4690                 if (freqs[i].freq == freq) {
4691                         wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4692                                    freq);
4693                         res = 0;
4694                         goto exit_free;
4695                 }
4696         }
4697
4698         wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4699         res = 1;
4700
4701 exit_free:
4702         os_free(freqs);
4703         return res;
4704 }
4705
4706
4707 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4708                             const u8 *peer_dev_addr)
4709 {
4710         struct wpa_bss *bss;
4711         int updated;
4712
4713         bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4714         if (bss == NULL)
4715                 return -1;
4716         if (bss->last_update_idx < wpa_s->bss_update_idx) {
4717                 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4718                            "last scan");
4719                 return 0;
4720         }
4721
4722         updated = os_reltime_before(&wpa_s->p2p_auto_started,
4723                                     &bss->last_update);
4724         wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4725                    "%ld.%06ld (%supdated in last scan)",
4726                    bss->last_update.sec, bss->last_update.usec,
4727                    updated ? "": "not ");
4728
4729         return updated;
4730 }
4731
4732
4733 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4734                                    struct wpa_scan_results *scan_res)
4735 {
4736         struct wpa_bss *bss = NULL;
4737         int freq;
4738         u8 iface_addr[ETH_ALEN];
4739
4740         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4741
4742         if (wpa_s->global->p2p_disabled)
4743                 return;
4744
4745         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4746                    scan_res ? (int) scan_res->num : -1,
4747                    wpa_s->p2p_auto_join ? "auto_" : "");
4748
4749         if (scan_res)
4750                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4751
4752         if (wpa_s->p2p_auto_pd) {
4753                 int join = wpas_p2p_peer_go(wpa_s,
4754                                             wpa_s->pending_join_dev_addr);
4755                 if (join == 0 &&
4756                     wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4757                         wpa_s->auto_pd_scan_retry++;
4758                         bss = wpa_bss_get_bssid_latest(
4759                                 wpa_s, wpa_s->pending_join_dev_addr);
4760                         if (bss) {
4761                                 freq = bss->freq;
4762                                 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4763                                            "the peer " MACSTR " at %d MHz",
4764                                            wpa_s->auto_pd_scan_retry,
4765                                            MAC2STR(wpa_s->
4766                                                    pending_join_dev_addr),
4767                                            freq);
4768                                 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4769                                 return;
4770                         }
4771                 }
4772
4773                 if (join < 0)
4774                         join = 0;
4775
4776                 wpa_s->p2p_auto_pd = 0;
4777                 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4778                 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4779                            MAC2STR(wpa_s->pending_join_dev_addr), join);
4780                 if (p2p_prov_disc_req(wpa_s->global->p2p,
4781                                       wpa_s->pending_join_dev_addr, NULL,
4782                                       wpa_s->pending_pd_config_methods, join,
4783                                       0, wpa_s->user_initiated_pd) < 0) {
4784                         wpa_s->p2p_auto_pd = 0;
4785                         wpa_msg_global(wpa_s, MSG_INFO,
4786                                        P2P_EVENT_PROV_DISC_FAILURE
4787                                        " p2p_dev_addr=" MACSTR " status=N/A",
4788                                        MAC2STR(wpa_s->pending_join_dev_addr));
4789                 }
4790                 return;
4791         }
4792
4793         if (wpa_s->p2p_auto_join) {
4794                 int join = wpas_p2p_peer_go(wpa_s,
4795                                             wpa_s->pending_join_dev_addr);
4796                 if (join < 0) {
4797                         wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4798                                    "running a GO -> use GO Negotiation");
4799                         wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4800                                        P2P_EVENT_FALLBACK_TO_GO_NEG
4801                                        "reason=peer-not-running-GO");
4802                         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4803                                          wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4804                                          wpa_s->p2p_persistent_group, 0, 0, 0,
4805                                          wpa_s->p2p_go_intent,
4806                                          wpa_s->p2p_connect_freq,
4807                                          wpa_s->p2p_go_vht_center_freq2,
4808                                          wpa_s->p2p_persistent_id,
4809                                          wpa_s->p2p_pd_before_go_neg,
4810                                          wpa_s->p2p_go_ht40,
4811                                          wpa_s->p2p_go_vht,
4812                                          wpa_s->p2p_go_max_oper_chwidth,
4813                                          NULL, 0);
4814                         return;
4815                 }
4816
4817                 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4818                            "try to join the group", join ? "" :
4819                            " in older scan");
4820                 if (!join) {
4821                         wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4822                                        P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4823                         wpa_s->p2p_fallback_to_go_neg = 1;
4824                 }
4825         }
4826
4827         freq = p2p_get_oper_freq(wpa_s->global->p2p,
4828                                  wpa_s->pending_join_iface_addr);
4829         if (freq < 0 &&
4830             p2p_get_interface_addr(wpa_s->global->p2p,
4831                                    wpa_s->pending_join_dev_addr,
4832                                    iface_addr) == 0 &&
4833             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4834             && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4835                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4836                            "address for join from " MACSTR " to " MACSTR
4837                            " based on newly discovered P2P peer entry",
4838                            MAC2STR(wpa_s->pending_join_iface_addr),
4839                            MAC2STR(iface_addr));
4840                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4841                           ETH_ALEN);
4842
4843                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4844                                          wpa_s->pending_join_iface_addr);
4845         }
4846         if (freq >= 0) {
4847                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4848                            "from P2P peer table: %d MHz", freq);
4849         }
4850         if (wpa_s->p2p_join_ssid_len) {
4851                 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4852                            MACSTR " and SSID %s",
4853                            MAC2STR(wpa_s->pending_join_iface_addr),
4854                            wpa_ssid_txt(wpa_s->p2p_join_ssid,
4855                                         wpa_s->p2p_join_ssid_len));
4856                 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4857                                   wpa_s->p2p_join_ssid,
4858                                   wpa_s->p2p_join_ssid_len);
4859         } else if (!bss) {
4860                 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4861                            MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4862                 bss = wpa_bss_get_bssid_latest(wpa_s,
4863                                                wpa_s->pending_join_iface_addr);
4864         }
4865         if (bss) {
4866                 u8 dev_addr[ETH_ALEN];
4867
4868                 freq = bss->freq;
4869                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4870                            "from BSS table: %d MHz (SSID %s)", freq,
4871                            wpa_ssid_txt(bss->ssid, bss->ssid_len));
4872                 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4873                                        dev_addr) == 0 &&
4874                     os_memcmp(wpa_s->pending_join_dev_addr,
4875                               wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4876                     os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4877                               ETH_ALEN) != 0) {
4878                         wpa_printf(MSG_DEBUG,
4879                                    "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4880                                    MAC2STR(dev_addr),
4881                                    MAC2STR(wpa_s->pending_join_dev_addr));
4882                         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4883                                   ETH_ALEN);
4884                 }
4885         }
4886         if (freq > 0) {
4887                 u16 method;
4888
4889                 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4890                         wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
4891                                        P2P_EVENT_GROUP_FORMATION_FAILURE
4892                                        "reason=FREQ_CONFLICT");
4893                         wpas_notify_p2p_group_formation_failure(
4894                                 wpa_s, "FREQ_CONFLICT");
4895                         return;
4896                 }
4897
4898                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4899                            "prior to joining an existing group (GO " MACSTR
4900                            " freq=%u MHz)",
4901                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
4902                 wpa_s->pending_pd_before_join = 1;
4903
4904                 switch (wpa_s->pending_join_wps_method) {
4905                 case WPS_PIN_DISPLAY:
4906                         method = WPS_CONFIG_KEYPAD;
4907                         break;
4908                 case WPS_PIN_KEYPAD:
4909                         method = WPS_CONFIG_DISPLAY;
4910                         break;
4911                 case WPS_PBC:
4912                         method = WPS_CONFIG_PUSHBUTTON;
4913                         break;
4914                 case WPS_P2PS:
4915                         method = WPS_CONFIG_P2PS;
4916                         break;
4917                 default:
4918                         method = 0;
4919                         break;
4920                 }
4921
4922                 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4923                                                wpa_s->pending_join_dev_addr) ==
4924                      method)) {
4925                         /*
4926                          * We have already performed provision discovery for
4927                          * joining the group. Proceed directly to join
4928                          * operation without duplicated provision discovery. */
4929                         wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4930                                    "with " MACSTR " already done - proceed to "
4931                                    "join",
4932                                    MAC2STR(wpa_s->pending_join_dev_addr));
4933                         wpa_s->pending_pd_before_join = 0;
4934                         goto start;
4935                 }
4936
4937                 if (p2p_prov_disc_req(wpa_s->global->p2p,
4938                                       wpa_s->pending_join_dev_addr,
4939                                       NULL, method, 1,
4940                                       freq, wpa_s->user_initiated_pd) < 0) {
4941                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4942                                    "Discovery Request before joining an "
4943                                    "existing group");
4944                         wpa_s->pending_pd_before_join = 0;
4945                         goto start;
4946                 }
4947                 return;
4948         }
4949
4950         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4951         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4952         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4953         wpas_p2p_check_join_scan_limit(wpa_s);
4954         return;
4955
4956 start:
4957         /* Start join operation immediately */
4958         wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
4959                             wpa_s->p2p_join_ssid_len);
4960 }
4961
4962
4963 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4964                                    const u8 *ssid, size_t ssid_len)
4965 {
4966         int ret;
4967         struct wpa_driver_scan_params params;
4968         struct wpabuf *wps_ie, *ies;
4969         size_t ielen;
4970         int freqs[2] = { 0, 0 };
4971         unsigned int bands;
4972
4973         os_memset(&params, 0, sizeof(params));
4974
4975         /* P2P Wildcard SSID */
4976         params.num_ssids = 1;
4977         if (ssid && ssid_len) {
4978                 params.ssids[0].ssid = ssid;
4979                 params.ssids[0].ssid_len = ssid_len;
4980                 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4981                 wpa_s->p2p_join_ssid_len = ssid_len;
4982         } else {
4983                 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4984                 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4985                 wpa_s->p2p_join_ssid_len = 0;
4986         }
4987
4988         wpa_s->wps->dev.p2p = 1;
4989         wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4990                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4991                                         NULL);
4992         if (wps_ie == NULL) {
4993                 wpas_p2p_scan_res_join(wpa_s, NULL);
4994                 return;
4995         }
4996
4997         if (!freq) {
4998                 int oper_freq;
4999                 /*
5000                  * If freq is not provided, check the operating freq of the GO
5001                  * and use a single channel scan on if possible.
5002                  */
5003                 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
5004                                               wpa_s->pending_join_iface_addr);
5005                 if (oper_freq > 0)
5006                         freq = oper_freq;
5007         }
5008         if (freq > 0) {
5009                 freqs[0] = freq;
5010                 params.freqs = freqs;
5011         }
5012
5013         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
5014         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
5015         if (ies == NULL) {
5016                 wpabuf_free(wps_ie);
5017                 wpas_p2p_scan_res_join(wpa_s, NULL);
5018                 return;
5019         }
5020         wpabuf_put_buf(ies, wps_ie);
5021         wpabuf_free(wps_ie);
5022
5023         bands = wpas_get_bands(wpa_s, freqs);
5024         p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
5025
5026         params.p2p_probe = 1;
5027         params.extra_ies = wpabuf_head(ies);
5028         params.extra_ies_len = wpabuf_len(ies);
5029
5030         if (wpa_s->clear_driver_scan_cache) {
5031                 wpa_printf(MSG_DEBUG,
5032                            "Request driver to clear scan cache due to local BSS flush");
5033                 params.only_new_results = 1;
5034         }
5035
5036         /*
5037          * Run a scan to update BSS table and start Provision Discovery once
5038          * the new scan results become available.
5039          */
5040         ret = wpa_drv_scan(wpa_s, &params);
5041         if (!ret) {
5042                 os_get_reltime(&wpa_s->scan_trigger_time);
5043                 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
5044                 wpa_s->own_scan_requested = 1;
5045                 wpa_s->clear_driver_scan_cache = 0;
5046         }
5047
5048         wpabuf_free(ies);
5049
5050         if (ret) {
5051                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
5052                            "try again later");
5053                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5054                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
5055                 wpas_p2p_check_join_scan_limit(wpa_s);
5056         }
5057 }
5058
5059
5060 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5061 {
5062         struct wpa_supplicant *wpa_s = eloop_ctx;
5063         wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
5064 }
5065
5066
5067 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
5068                          const u8 *dev_addr, enum p2p_wps_method wps_method,
5069                          int auto_join, int op_freq,
5070                          const u8 *ssid, size_t ssid_len)
5071 {
5072         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
5073                    MACSTR " dev " MACSTR " op_freq=%d)%s",
5074                    MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
5075                    auto_join ? " (auto_join)" : "");
5076         if (ssid && ssid_len) {
5077                 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5078                            wpa_ssid_txt(ssid, ssid_len));
5079         }
5080
5081         wpa_s->p2p_auto_pd = 0;
5082         wpa_s->p2p_auto_join = !!auto_join;
5083         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5084         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5085         wpa_s->pending_join_wps_method = wps_method;
5086
5087         /* Make sure we are not running find during connection establishment */
5088         wpas_p2p_stop_find(wpa_s);
5089
5090         wpa_s->p2p_join_scan_count = 0;
5091         wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
5092         return 0;
5093 }
5094
5095
5096 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5097                                const u8 *ssid, size_t ssid_len)
5098 {
5099         struct wpa_supplicant *group;
5100         struct p2p_go_neg_results res;
5101         struct wpa_bss *bss;
5102
5103         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5104         if (group == NULL)
5105                 return -1;
5106         if (group != wpa_s) {
5107                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5108                           sizeof(group->p2p_pin));
5109                 group->p2p_wps_method = wpa_s->p2p_wps_method;
5110         } else {
5111                 /*
5112                  * Need to mark the current interface for p2p_group_formation
5113                  * when a separate group interface is not used. This is needed
5114                  * to allow p2p_cancel stop a pending p2p_connect-join.
5115                  * wpas_p2p_init_group_interface() addresses this for the case
5116                  * where a separate group interface is used.
5117                  */
5118                 wpa_s->global->p2p_group_formation = wpa_s;
5119         }
5120
5121         group->p2p_in_provisioning = 1;
5122         group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
5123
5124         os_memset(&res, 0, sizeof(res));
5125         os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
5126         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5127                   ETH_ALEN);
5128         res.wps_method = wpa_s->pending_join_wps_method;
5129         if (freq && ssid && ssid_len) {
5130                 res.freq = freq;
5131                 res.ssid_len = ssid_len;
5132                 os_memcpy(res.ssid, ssid, ssid_len);
5133         } else {
5134                 if (ssid && ssid_len) {
5135                         bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
5136                                           ssid, ssid_len);
5137                 } else {
5138                         bss = wpa_bss_get_bssid_latest(
5139                                 wpa_s, wpa_s->pending_join_iface_addr);
5140                 }
5141                 if (bss) {
5142                         res.freq = bss->freq;
5143                         res.ssid_len = bss->ssid_len;
5144                         os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5145                         wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5146                                    bss->freq,
5147                                    wpa_ssid_txt(bss->ssid, bss->ssid_len));
5148                 } else if (ssid && ssid_len) {
5149                         res.ssid_len = ssid_len;
5150                         os_memcpy(res.ssid, ssid, ssid_len);
5151                         wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
5152                                    wpa_ssid_txt(ssid, ssid_len));
5153                 }
5154         }
5155
5156         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5157                 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5158                            "starting client");
5159                 wpa_drv_cancel_remain_on_channel(wpa_s);
5160                 wpa_s->off_channel_freq = 0;
5161                 wpa_s->roc_waiting_drv_freq = 0;
5162         }
5163         wpas_start_wps_enrollee(group, &res);
5164
5165         /*
5166          * Allow a longer timeout for join-a-running-group than normal 15
5167          * second group formation timeout since the GO may not have authorized
5168          * our connection yet.
5169          */
5170         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5171         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5172                                wpa_s, NULL);
5173
5174         return 0;
5175 }
5176
5177
5178 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
5179                                 int *force_freq, int *pref_freq, int go,
5180                                 unsigned int *pref_freq_list,
5181                                 unsigned int *num_pref_freq)
5182 {
5183         struct wpa_used_freq_data *freqs;
5184         int res, best_freq, num_unused;
5185         unsigned int freq_in_use = 0, num, i, max_pref_freq;
5186
5187         max_pref_freq = *num_pref_freq;
5188         *num_pref_freq = 0;
5189
5190         freqs = os_calloc(wpa_s->num_multichan_concurrent,
5191                           sizeof(struct wpa_used_freq_data));
5192         if (!freqs)
5193                 return -1;
5194
5195         num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5196                                         wpa_s->num_multichan_concurrent);
5197
5198         /*
5199          * It is possible that the total number of used frequencies is bigger
5200          * than the number of frequencies used for P2P, so get the system wide
5201          * number of unused frequencies.
5202          */
5203         num_unused = wpas_p2p_num_unused_channels(wpa_s);
5204
5205         wpa_printf(MSG_DEBUG,
5206                    "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5207                    freq, wpa_s->num_multichan_concurrent, num, num_unused);
5208
5209         if (freq > 0) {
5210                 int ret;
5211                 if (go)
5212                         ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5213                 else
5214                         ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5215                 if (!ret) {
5216                         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5217                             ieee80211_is_dfs(freq, wpa_s->hw.modes,
5218                                              wpa_s->hw.num_modes)) {
5219                                 /*
5220                                  * If freq is a DFS channel and DFS is offloaded
5221                                  * to the driver, allow P2P GO to use it.
5222                                  */
5223                                 wpa_printf(MSG_DEBUG,
5224                                            "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5225                                            freq);
5226                         } else {
5227                                 wpa_printf(MSG_DEBUG,
5228                                            "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5229                                            freq);
5230                                 res = -3;
5231                                 goto exit_free;
5232                         }
5233                 }
5234
5235                 for (i = 0; i < num; i++) {
5236                         if (freqs[i].freq == freq)
5237                                 freq_in_use = 1;
5238                 }
5239
5240                 if (num_unused <= 0 && !freq_in_use) {
5241                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5242                                    freq);
5243                         res = -2;
5244                         goto exit_free;
5245                 }
5246                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5247                            "requested channel (%u MHz)", freq);
5248                 *force_freq = freq;
5249                 goto exit_ok;
5250         }
5251
5252         best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5253
5254         if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5255                 enum wpa_driver_if_type iface_type;
5256
5257                 if (go)
5258                         iface_type = WPA_IF_P2P_GO;
5259                 else
5260                         iface_type = WPA_IF_P2P_CLIENT;
5261
5262                 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5263                            best_freq, go);
5264
5265                 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5266                                                  &max_pref_freq,
5267                                                  pref_freq_list);
5268                 if (!res && max_pref_freq > 0) {
5269                         *num_pref_freq = max_pref_freq;
5270                         i = 0;
5271                         while (i < *num_pref_freq &&
5272                                (!p2p_supported_freq(wpa_s->global->p2p,
5273                                                     pref_freq_list[i]) ||
5274                                 wpas_p2p_disallowed_freq(wpa_s->global,
5275                                                          pref_freq_list[i]))) {
5276                                 wpa_printf(MSG_DEBUG,
5277                                            "P2P: preferred_freq_list[%d]=%d is disallowed",
5278                                            i, pref_freq_list[i]);
5279                                 i++;
5280                         }
5281                         if (i != *num_pref_freq) {
5282                                 best_freq = pref_freq_list[i];
5283                                 wpa_printf(MSG_DEBUG,
5284                                            "P2P: Using preferred_freq_list[%d]=%d",
5285                                            i, best_freq);
5286                         } else {
5287                                 wpa_printf(MSG_DEBUG,
5288                                            "P2P: All driver preferred frequencies are disallowed for P2P use");
5289                                 *num_pref_freq = 0;
5290                         }
5291                 } else {
5292                         wpa_printf(MSG_DEBUG,
5293                                    "P2P: No preferred frequency list available");
5294                 }
5295         }
5296
5297         /* We have a candidate frequency to use */
5298         if (best_freq > 0) {
5299                 if (*pref_freq == 0 && num_unused > 0) {
5300                         wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5301                                    best_freq);
5302                         *pref_freq = best_freq;
5303                 } else {
5304                         wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5305                                    best_freq);
5306                         *force_freq = best_freq;
5307                 }
5308         } else if (num_unused > 0) {
5309                 wpa_printf(MSG_DEBUG,
5310                            "P2P: Current operating channels are not available for P2P. Try to use another channel");
5311                 *force_freq = 0;
5312         } else {
5313                 wpa_printf(MSG_DEBUG,
5314                            "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5315                 res = -2;
5316                 goto exit_free;
5317         }
5318
5319 exit_ok:
5320         res = 0;
5321 exit_free:
5322         os_free(freqs);
5323         return res;
5324 }
5325
5326
5327 /**
5328  * wpas_p2p_connect - Request P2P Group Formation to be started
5329  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5330  * @peer_addr: Address of the peer P2P Device
5331  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5332  * @persistent_group: Whether to create a persistent group
5333  * @auto_join: Whether to select join vs. GO Negotiation automatically
5334  * @join: Whether to join an existing group (as a client) instead of starting
5335  *      Group Owner negotiation; @peer_addr is BSSID in that case
5336  * @auth: Whether to only authorize the connection instead of doing that and
5337  *      initiating Group Owner negotiation
5338  * @go_intent: GO Intent or -1 to use default
5339  * @freq: Frequency for the group or 0 for auto-selection
5340  * @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
5341  * @persistent_id: Persistent group credentials to use for forcing GO
5342  *      parameters or -1 to generate new values (SSID/passphrase)
5343  * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5344  *      interoperability workaround when initiating group formation
5345  * @ht40: Start GO with 40 MHz channel width
5346  * @vht:  Start GO with VHT support
5347  * @vht_chwidth: Channel width supported by GO operating with VHT support
5348  *      (VHT_CHANWIDTH_*).
5349  * @group_ssid: Specific Group SSID for join or %NULL if not set
5350  * @group_ssid_len: Length of @group_ssid in octets
5351  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5352  *      failure, -2 on failure due to channel not currently available,
5353  *      -3 if forced channel is not supported
5354  */
5355 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5356                      const char *pin, enum p2p_wps_method wps_method,
5357                      int persistent_group, int auto_join, int join, int auth,
5358                      int go_intent, int freq, unsigned int vht_center_freq2,
5359                      int persistent_id, int pd, int ht40, int vht,
5360                      unsigned int vht_chwidth, const u8 *group_ssid,
5361                      size_t group_ssid_len)
5362 {
5363         int force_freq = 0, pref_freq = 0;
5364         int ret = 0, res;
5365         enum wpa_driver_if_type iftype;
5366         const u8 *if_addr;
5367         struct wpa_ssid *ssid = NULL;
5368         unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5369
5370         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5371                 return -1;
5372
5373         if (persistent_id >= 0) {
5374                 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5375                 if (ssid == NULL || ssid->disabled != 2 ||
5376                     ssid->mode != WPAS_MODE_P2P_GO)
5377                         return -1;
5378         }
5379
5380         os_free(wpa_s->global->add_psk);
5381         wpa_s->global->add_psk = NULL;
5382
5383         wpa_s->global->p2p_fail_on_wps_complete = 0;
5384         wpa_s->global->pending_p2ps_group = 0;
5385         wpa_s->global->pending_p2ps_group_freq = 0;
5386         wpa_s->p2ps_method_config_any = 0;
5387
5388         if (go_intent < 0)
5389                 go_intent = wpa_s->conf->p2p_go_intent;
5390
5391         if (!auth)
5392                 wpa_s->p2p_long_listen = 0;
5393
5394         wpa_s->p2p_wps_method = wps_method;
5395         wpa_s->p2p_persistent_group = !!persistent_group;
5396         wpa_s->p2p_persistent_id = persistent_id;
5397         wpa_s->p2p_go_intent = go_intent;
5398         wpa_s->p2p_connect_freq = freq;
5399         wpa_s->p2p_fallback_to_go_neg = 0;
5400         wpa_s->p2p_pd_before_go_neg = !!pd;
5401         wpa_s->p2p_go_ht40 = !!ht40;
5402         wpa_s->p2p_go_vht = !!vht;
5403         wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
5404         wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
5405
5406         if (pin)
5407                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5408         else if (wps_method == WPS_PIN_DISPLAY) {
5409                 if (wps_generate_pin((unsigned int *) &ret) < 0)
5410                         return -1;
5411                 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5412                                   "%08d", ret);
5413                 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5414                         wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5415                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5416                            wpa_s->p2p_pin);
5417         } else if (wps_method == WPS_P2PS) {
5418                 /* Force the P2Ps default PIN to be used */
5419                 os_strlcpy(wpa_s->p2p_pin, "12345670", sizeof(wpa_s->p2p_pin));
5420         } else
5421                 wpa_s->p2p_pin[0] = '\0';
5422
5423         if (join || auto_join) {
5424                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5425                 if (auth) {
5426                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5427                                    "connect a running group from " MACSTR,
5428                                    MAC2STR(peer_addr));
5429                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5430                         return ret;
5431                 }
5432                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5433                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5434                                            iface_addr) < 0) {
5435                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5436                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5437                                          dev_addr);
5438                 }
5439                 if (auto_join) {
5440                         os_get_reltime(&wpa_s->p2p_auto_started);
5441                         wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5442                                    "%ld.%06ld",
5443                                    wpa_s->p2p_auto_started.sec,
5444                                    wpa_s->p2p_auto_started.usec);
5445                 }
5446                 wpa_s->user_initiated_pd = 1;
5447                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5448                                   auto_join, freq,
5449                                   group_ssid, group_ssid_len) < 0)
5450                         return -1;
5451                 return ret;
5452         }
5453
5454         size = P2P_MAX_PREF_CHANNELS;
5455         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5456                                    go_intent == 15, pref_freq_list, &size);
5457         if (res)
5458                 return res;
5459         wpas_p2p_set_own_freq_preference(wpa_s,
5460                                          force_freq ? force_freq : pref_freq);
5461
5462         p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5463
5464         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5465
5466         if (wpa_s->create_p2p_iface) {
5467                 /* Prepare to add a new interface for the group */
5468                 iftype = WPA_IF_P2P_GROUP;
5469                 if (go_intent == 15)
5470                         iftype = WPA_IF_P2P_GO;
5471                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5472                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5473                                    "interface for the group");
5474                         return -1;
5475                 }
5476
5477                 if_addr = wpa_s->pending_interface_addr;
5478         } else {
5479                 if (wpa_s->p2p_mgmt)
5480                         if_addr = wpa_s->parent->own_addr;
5481                 else
5482                         if_addr = wpa_s->own_addr;
5483                 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5484         }
5485
5486         if (auth) {
5487                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5488                                          go_intent, if_addr,
5489                                          force_freq, persistent_group, ssid,
5490                                          pref_freq) < 0)
5491                         return -1;
5492                 return ret;
5493         }
5494
5495         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5496                                   go_intent, if_addr, force_freq,
5497                                   persistent_group, ssid, pref_freq) < 0) {
5498                 if (wpa_s->create_p2p_iface)
5499                         wpas_p2p_remove_pending_group_interface(wpa_s);
5500                 return -1;
5501         }
5502         return ret;
5503 }
5504
5505
5506 /**
5507  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5508  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5509  * @freq: Frequency of the channel in MHz
5510  * @duration: Duration of the stay on the channel in milliseconds
5511  *
5512  * This callback is called when the driver indicates that it has started the
5513  * requested remain-on-channel duration.
5514  */
5515 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5516                                    unsigned int freq, unsigned int duration)
5517 {
5518         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5519                 return;
5520         wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
5521                    wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5522                    wpa_s->roc_waiting_drv_freq, freq, duration);
5523         if (wpa_s->off_channel_freq &&
5524             wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5525                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5526                               wpa_s->pending_listen_duration);
5527                 wpa_s->pending_listen_freq = 0;
5528         } else {
5529                 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5530                            wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5531                            freq, duration);
5532         }
5533 }
5534
5535
5536 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5537 {
5538         /* Limit maximum Listen state time based on driver limitation. */
5539         if (timeout > wpa_s->max_remain_on_chan)
5540                 timeout = wpa_s->max_remain_on_chan;
5541
5542         return p2p_listen(wpa_s->global->p2p, timeout);
5543 }
5544
5545
5546 /**
5547  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5548  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5549  * @freq: Frequency of the channel in MHz
5550  *
5551  * This callback is called when the driver indicates that a remain-on-channel
5552  * operation has been completed, i.e., the duration on the requested channel
5553  * has timed out.
5554  */
5555 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5556                                           unsigned int freq)
5557 {
5558         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5559                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
5560                    wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5561         wpas_p2p_listen_work_done(wpa_s);
5562         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5563                 return;
5564         if (wpa_s->p2p_long_listen > 0)
5565                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5566         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5567                 return; /* P2P module started a new operation */
5568         if (offchannel_pending_action_tx(wpa_s))
5569                 return;
5570         if (wpa_s->p2p_long_listen > 0) {
5571                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5572                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5573         } else {
5574                 /*
5575                  * When listen duration is over, stop listen & update p2p_state
5576                  * to IDLE.
5577                  */
5578                 p2p_stop_listen(wpa_s->global->p2p);
5579         }
5580 }
5581
5582
5583 /**
5584  * wpas_p2p_group_remove - Remove a P2P group
5585  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5586  * @ifname: Network interface name of the group interface or "*" to remove all
5587  *      groups
5588  * Returns: 0 on success, -1 on failure
5589  *
5590  * This function is used to remove a P2P group. This can be used to disconnect
5591  * from a group in which the local end is a P2P Client or to end a P2P Group in
5592  * case the local end is the Group Owner. If a virtual network interface was
5593  * created for this group, that interface will be removed. Otherwise, only the
5594  * configured P2P group network will be removed from the interface.
5595  */
5596 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5597 {
5598         struct wpa_global *global = wpa_s->global;
5599         struct wpa_supplicant *calling_wpa_s = wpa_s;
5600
5601         if (os_strcmp(ifname, "*") == 0) {
5602                 struct wpa_supplicant *prev;
5603                 wpa_s = global->ifaces;
5604                 while (wpa_s) {
5605                         prev = wpa_s;
5606                         wpa_s = wpa_s->next;
5607                         if (prev->p2p_group_interface !=
5608                             NOT_P2P_GROUP_INTERFACE ||
5609                             (prev->current_ssid &&
5610                              prev->current_ssid->p2p_group))
5611                                 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5612                 }
5613                 return 0;
5614         }
5615
5616         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5617                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5618                         break;
5619         }
5620
5621         return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5622 }
5623
5624
5625 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5626 {
5627         unsigned int r;
5628
5629         if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5630                 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5631                 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5632                 int res;
5633
5634                 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5635                                                  &size, pref_freq_list);
5636                 if (!res && size > 0) {
5637                         i = 0;
5638                         while (i < size &&
5639                                (!p2p_supported_freq(wpa_s->global->p2p,
5640                                                     pref_freq_list[i]) ||
5641                                 wpas_p2p_disallowed_freq(wpa_s->global,
5642                                                          pref_freq_list[i]))) {
5643                                 wpa_printf(MSG_DEBUG,
5644                                            "P2P: preferred_freq_list[%d]=%d is disallowed",
5645                                            i, pref_freq_list[i]);
5646                                 i++;
5647                         }
5648                         if (i != size) {
5649                                 freq = pref_freq_list[i];
5650                                 wpa_printf(MSG_DEBUG,
5651                                            "P2P: Using preferred_freq_list[%d]=%d",
5652                                            i, freq);
5653                         } else {
5654                                 wpa_printf(MSG_DEBUG,
5655                                            "P2P: All driver preferred frequencies are disallowed for P2P use");
5656                         }
5657                 } else {
5658                         wpa_printf(MSG_DEBUG,
5659                                    "P2P: No preferred frequency list available");
5660                 }
5661         }
5662
5663         if (freq == 2) {
5664                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5665                            "band");
5666                 if (wpa_s->best_24_freq > 0 &&
5667                     p2p_supported_freq_go(wpa_s->global->p2p,
5668                                           wpa_s->best_24_freq)) {
5669                         freq = wpa_s->best_24_freq;
5670                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5671                                    "channel: %d MHz", freq);
5672                 } else {
5673                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5674                                 return -1;
5675                         freq = 2412 + (r % 3) * 25;
5676                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5677                                    "channel: %d MHz", freq);
5678                 }
5679         }
5680
5681         if (freq == 5) {
5682                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5683                            "band");
5684                 if (wpa_s->best_5_freq > 0 &&
5685                     p2p_supported_freq_go(wpa_s->global->p2p,
5686                                        wpa_s->best_5_freq)) {
5687                         freq = wpa_s->best_5_freq;
5688                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5689                                    "channel: %d MHz", freq);
5690                 } else {
5691                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5692                                 return -1;
5693                         freq = 5180 + (r % 4) * 20;
5694                         if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5695                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5696                                            "5 GHz channel for P2P group");
5697                                 return -1;
5698                         }
5699                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5700                                    "channel: %d MHz", freq);
5701                 }
5702         }
5703
5704         if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5705                 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5706                     ieee80211_is_dfs(freq, wpa_s->hw.modes,
5707                                      wpa_s->hw.num_modes)) {
5708                         /*
5709                          * If freq is a DFS channel and DFS is offloaded to the
5710                          * driver, allow P2P GO to use it.
5711                          */
5712                         wpa_printf(MSG_DEBUG, "P2P: "
5713                                    "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5714                                    __func__, freq);
5715                         return freq;
5716                 }
5717                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5718                            "(%u MHz) is not supported for P2P uses",
5719                            freq);
5720                 return -1;
5721         }
5722
5723         return freq;
5724 }
5725
5726
5727 static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5728                                       const struct p2p_channels *channels,
5729                                       int freq)
5730 {
5731         if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5732             p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5733             freq_included(wpa_s, channels, freq))
5734                 return 1;
5735         return 0;
5736 }
5737
5738
5739 static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5740                                             struct p2p_go_neg_results *params,
5741                                             const struct p2p_channels *channels)
5742 {
5743         unsigned int i, r;
5744
5745         /* try all channels in operating class 115 */
5746         for (i = 0; i < 4; i++) {
5747                 params->freq = 5180 + i * 20;
5748                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5749                     freq_included(wpa_s, channels, params->freq) &&
5750                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5751                         goto out;
5752         }
5753
5754         /* try all channels in operating class 124 */
5755         for (i = 0; i < 4; i++) {
5756                 params->freq = 5745 + i * 20;
5757                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5758                     freq_included(wpa_s, channels, params->freq) &&
5759                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5760                         goto out;
5761         }
5762
5763         /* try social channel class 180 channel 2 */
5764         params->freq = 58320 + 1 * 2160;
5765         if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5766             freq_included(wpa_s, channels, params->freq) &&
5767             p2p_supported_freq(wpa_s->global->p2p, params->freq))
5768                 goto out;
5769
5770         /* try all channels in reg. class 180 */
5771         for (i = 0; i < 4; i++) {
5772                 params->freq = 58320 + i * 2160;
5773                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5774                     freq_included(wpa_s, channels, params->freq) &&
5775                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5776                         goto out;
5777         }
5778
5779         /* try some random selection of the social channels */
5780         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5781                 return;
5782
5783         for (i = 0; i < 3; i++) {
5784                 params->freq = 2412 + ((r + i) % 3) * 25;
5785                 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5786                         goto out;
5787         }
5788
5789         /* try all other channels in operating class 81 */
5790         for (i = 0; i < 11; i++) {
5791                 params->freq = 2412 + i * 5;
5792
5793                 /* skip social channels; covered in the previous loop */
5794                 if (params->freq == 2412 ||
5795                     params->freq == 2437 ||
5796                     params->freq == 2462)
5797                         continue;
5798
5799                 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5800                         goto out;
5801         }
5802
5803         params->freq = 0;
5804         wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5805         return;
5806 out:
5807         wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5808                    params->freq);
5809 }
5810
5811
5812 static int wpas_same_band(int freq1, int freq2)
5813 {
5814         enum hostapd_hw_mode mode1, mode2;
5815         u8 chan1, chan2;
5816
5817         mode1 = ieee80211_freq_to_chan(freq1, &chan1);
5818         mode2 = ieee80211_freq_to_chan(freq2, &chan2);
5819         if (mode1 == NUM_HOSTAPD_MODES)
5820                 return 0;
5821         return mode1 == mode2;
5822 }
5823
5824
5825 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5826                                    struct p2p_go_neg_results *params,
5827                                    int freq, int vht_center_freq2, int ht40,
5828                                    int vht, int max_oper_chwidth,
5829                                    const struct p2p_channels *channels)
5830 {
5831         struct wpa_used_freq_data *freqs;
5832         unsigned int cand;
5833         unsigned int num, i;
5834         int ignore_no_freqs = 0;
5835         int unused_channels = wpas_p2p_num_unused_channels(wpa_s) > 0;
5836
5837         os_memset(params, 0, sizeof(*params));
5838         params->role_go = 1;
5839         params->ht40 = ht40;
5840         params->vht = vht;
5841         params->max_oper_chwidth = max_oper_chwidth;
5842         params->vht_center_freq2 = vht_center_freq2;
5843
5844         freqs = os_calloc(wpa_s->num_multichan_concurrent,
5845                           sizeof(struct wpa_used_freq_data));
5846         if (!freqs)
5847                 return -1;
5848
5849         num = get_shared_radio_freqs_data(wpa_s, freqs,
5850                                           wpa_s->num_multichan_concurrent);
5851
5852         if (wpa_s->current_ssid &&
5853             wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5854             wpa_s->wpa_state == WPA_COMPLETED) {
5855                 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5856                            __func__);
5857
5858                 /*
5859                  * If the frequency selection is done for an active P2P GO that
5860                  * is not sharing a frequency, allow to select a new frequency
5861                  * even if there are no unused frequencies as we are about to
5862                  * move the P2P GO so its frequency can be re-used.
5863                  */
5864                 for (i = 0; i < num; i++) {
5865                         if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5866                             freqs[i].flags == 0) {
5867                                 ignore_no_freqs = 1;
5868                                 break;
5869                         }
5870                 }
5871         }
5872
5873         /* try using the forced freq */
5874         if (freq) {
5875                 if (wpas_p2p_disallowed_freq(wpa_s->global, freq) ||
5876                     !freq_included(wpa_s, channels, freq)) {
5877                         wpa_printf(MSG_DEBUG,
5878                                    "P2P: Forced GO freq %d MHz disallowed",
5879                                    freq);
5880                         goto fail;
5881                 }
5882                 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5883                         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5884                             ieee80211_is_dfs(freq, wpa_s->hw.modes,
5885                                              wpa_s->hw.num_modes)) {
5886                                 /*
5887                                  * If freq is a DFS channel and DFS is offloaded
5888                                  * to the driver, allow P2P GO to use it.
5889                                  */
5890                                 wpa_printf(MSG_DEBUG,
5891                                            "P2P: %s: The forced channel for GO (%u MHz) requires DFS and DFS is offloaded",
5892                                            __func__, freq);
5893                         } else {
5894                                 wpa_printf(MSG_DEBUG,
5895                                            "P2P: The forced channel for GO (%u MHz) is not supported for P2P uses",
5896                                            freq);
5897                                 goto fail;
5898                         }
5899                 }
5900
5901                 for (i = 0; i < num; i++) {
5902                         if (freqs[i].freq == freq) {
5903                                 wpa_printf(MSG_DEBUG,
5904                                            "P2P: forced freq (%d MHz) is also shared",
5905                                            freq);
5906                                 params->freq = freq;
5907                                 goto success;
5908                         }
5909                 }
5910
5911                 if (!ignore_no_freqs && !unused_channels) {
5912                         wpa_printf(MSG_DEBUG,
5913                                    "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5914                                    freq);
5915                         goto fail;
5916                 }
5917
5918                 wpa_printf(MSG_DEBUG,
5919                            "P2P: force GO freq (%d MHz) on a free channel",
5920                            freq);
5921                 params->freq = freq;
5922                 goto success;
5923         }
5924
5925         /* consider using one of the shared frequencies */
5926         if (num &&
5927             (!wpa_s->conf->p2p_ignore_shared_freq || !unused_channels)) {
5928                 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5929                 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5930                         wpa_printf(MSG_DEBUG,
5931                                    "P2P: Use shared freq (%d MHz) for GO",
5932                                    cand);
5933                         params->freq = cand;
5934                         goto success;
5935                 }
5936
5937                 /* try using one of the shared freqs */
5938                 for (i = 0; i < num; i++) {
5939                         if (wpas_p2p_supported_freq_go(wpa_s, channels,
5940                                                        freqs[i].freq)) {
5941                                 wpa_printf(MSG_DEBUG,
5942                                            "P2P: Use shared freq (%d MHz) for GO",
5943                                            freqs[i].freq);
5944                                 params->freq = freqs[i].freq;
5945                                 goto success;
5946                         }
5947                 }
5948         }
5949
5950         if (!ignore_no_freqs && !unused_channels) {
5951                 wpa_printf(MSG_DEBUG,
5952                            "P2P: Cannot force GO on any of the channels we are already using");
5953                 goto fail;
5954         }
5955
5956         /* try using the setting from the configuration file */
5957         if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5958             wpa_s->conf->p2p_oper_channel >= 1 &&
5959             wpa_s->conf->p2p_oper_channel <= 11 &&
5960             wpas_p2p_supported_freq_go(
5961                     wpa_s, channels,
5962                     2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5963                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5964                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5965                            "frequency %d MHz", params->freq);
5966                 goto success;
5967         }
5968
5969         if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5970              wpa_s->conf->p2p_oper_reg_class == 116 ||
5971              wpa_s->conf->p2p_oper_reg_class == 117 ||
5972              wpa_s->conf->p2p_oper_reg_class == 124 ||
5973              wpa_s->conf->p2p_oper_reg_class == 125 ||
5974              wpa_s->conf->p2p_oper_reg_class == 126 ||
5975              wpa_s->conf->p2p_oper_reg_class == 127) &&
5976             wpas_p2p_supported_freq_go(wpa_s, channels,
5977                                        5000 +
5978                                        5 * wpa_s->conf->p2p_oper_channel)) {
5979                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5980                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5981                            "frequency %d MHz", params->freq);
5982                 goto success;
5983         }
5984
5985         /* Try using best channels */
5986         if (wpa_s->conf->p2p_oper_channel == 0 &&
5987             wpa_s->best_overall_freq > 0 &&
5988             wpas_p2p_supported_freq_go(wpa_s, channels,
5989                                        wpa_s->best_overall_freq)) {
5990                 params->freq = wpa_s->best_overall_freq;
5991                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5992                            "channel %d MHz", params->freq);
5993                 goto success;
5994         }
5995
5996         if (wpa_s->conf->p2p_oper_channel == 0 &&
5997             wpa_s->best_24_freq > 0 &&
5998             wpas_p2p_supported_freq_go(wpa_s, channels,
5999                                        wpa_s->best_24_freq)) {
6000                 params->freq = wpa_s->best_24_freq;
6001                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
6002                            "channel %d MHz", params->freq);
6003                 goto success;
6004         }
6005
6006         if (wpa_s->conf->p2p_oper_channel == 0 &&
6007             wpa_s->best_5_freq > 0 &&
6008             wpas_p2p_supported_freq_go(wpa_s, channels,
6009                                        wpa_s->best_5_freq)) {
6010                 params->freq = wpa_s->best_5_freq;
6011                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
6012                            "channel %d MHz", params->freq);
6013                 goto success;
6014         }
6015
6016         /* try using preferred channels */
6017         cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
6018         if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6019                 params->freq = cand;
6020                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
6021                            "channels", params->freq);
6022                 goto success;
6023         }
6024
6025         /* Try using a channel that allows VHT to be used with 80 MHz */
6026         if (wpa_s->hw.modes && wpa_s->p2p_group_common_freqs) {
6027                 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6028                         enum hostapd_hw_mode mode;
6029                         struct hostapd_hw_modes *hwmode;
6030                         u8 chan;
6031
6032                         cand = wpa_s->p2p_group_common_freqs[i];
6033                         mode = ieee80211_freq_to_chan(cand, &chan);
6034                         hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
6035                                           mode);
6036                         if (!hwmode ||
6037                             wpas_p2p_verify_channel(wpa_s, hwmode, chan,
6038                                                     BW80) != ALLOWED)
6039                                 continue;
6040                         if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6041                                 params->freq = cand;
6042                                 wpa_printf(MSG_DEBUG,
6043                                            "P2P: Use freq %d MHz common with the peer and allowing VHT80",
6044                                            params->freq);
6045                                 goto success;
6046                         }
6047                 }
6048         }
6049
6050         /* Try using a channel that allows HT to be used with 40 MHz on the same
6051          * band so that CSA can be used */
6052         if (wpa_s->current_ssid && wpa_s->hw.modes &&
6053             wpa_s->p2p_group_common_freqs) {
6054                 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6055                         enum hostapd_hw_mode mode;
6056                         struct hostapd_hw_modes *hwmode;
6057                         u8 chan;
6058
6059                         cand = wpa_s->p2p_group_common_freqs[i];
6060                         mode = ieee80211_freq_to_chan(cand, &chan);
6061                         hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
6062                                           mode);
6063                         if (!wpas_same_band(wpa_s->current_ssid->frequency,
6064                                             cand) ||
6065                             !hwmode ||
6066                             (wpas_p2p_verify_channel(wpa_s, hwmode, chan,
6067                                                      BW40MINUS) != ALLOWED &&
6068                              wpas_p2p_verify_channel(wpa_s, hwmode, chan,
6069                                                      BW40PLUS) != ALLOWED))
6070                                 continue;
6071                         if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6072                                 params->freq = cand;
6073                                 wpa_printf(MSG_DEBUG,
6074                                            "P2P: Use freq %d MHz common with the peer, allowing HT40, and maintaining same band",
6075                                            params->freq);
6076                                 goto success;
6077                         }
6078                 }
6079         }
6080
6081         /* Try using one of the group common freqs on the same band so that CSA
6082          * can be used */
6083         if (wpa_s->current_ssid && wpa_s->p2p_group_common_freqs) {
6084                 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6085                         cand = wpa_s->p2p_group_common_freqs[i];
6086                         if (!wpas_same_band(wpa_s->current_ssid->frequency,
6087                                             cand))
6088                                 continue;
6089                         if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6090                                 params->freq = cand;
6091                                 wpa_printf(MSG_DEBUG,
6092                                            "P2P: Use freq %d MHz common with the peer and maintaining same band",
6093                                            params->freq);
6094                                 goto success;
6095                         }
6096                 }
6097         }
6098
6099         /* Try using one of the group common freqs */
6100         if (wpa_s->p2p_group_common_freqs) {
6101                 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
6102                         cand = wpa_s->p2p_group_common_freqs[i];
6103                         if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
6104                                 params->freq = cand;
6105                                 wpa_printf(MSG_DEBUG,
6106                                            "P2P: Use freq %d MHz common with the peer",
6107                                            params->freq);
6108                                 goto success;
6109                         }
6110                 }
6111         }
6112
6113         /* no preference, select some channel */
6114         wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
6115
6116         if (params->freq == 0) {
6117                 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
6118                 goto fail;
6119         }
6120
6121 success:
6122         os_free(freqs);
6123         return 0;
6124 fail:
6125         os_free(freqs);
6126         return -1;
6127 }
6128
6129
6130 static struct wpa_supplicant *
6131 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
6132                          int go)
6133 {
6134         struct wpa_supplicant *group_wpa_s;
6135
6136         if (!wpas_p2p_create_iface(wpa_s)) {
6137                 if (wpa_s->p2p_mgmt) {
6138                         /*
6139                          * We may be called on the p2p_dev interface which
6140                          * cannot be used for group operations, so always use
6141                          * the primary interface.
6142                          */
6143                         wpa_s->parent->p2pdev = wpa_s;
6144                         wpa_s = wpa_s->parent;
6145                 }
6146                 wpa_dbg(wpa_s, MSG_DEBUG,
6147                         "P2P: Use primary interface for group operations");
6148                 wpa_s->p2p_first_connection_timeout = 0;
6149                 if (wpa_s != wpa_s->p2pdev)
6150                         wpas_p2p_clone_config(wpa_s, wpa_s->p2pdev);
6151                 return wpa_s;
6152         }
6153
6154         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
6155                                          WPA_IF_P2P_CLIENT) < 0) {
6156                 wpa_msg_global(wpa_s, MSG_ERROR,
6157                                "P2P: Failed to add group interface");
6158                 return NULL;
6159         }
6160         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
6161         if (group_wpa_s == NULL) {
6162                 wpa_msg_global(wpa_s, MSG_ERROR,
6163                                "P2P: Failed to initialize group interface");
6164                 wpas_p2p_remove_pending_group_interface(wpa_s);
6165                 return NULL;
6166         }
6167
6168         if (go && wpa_s->p2p_go_do_acs) {
6169                 group_wpa_s->p2p_go_do_acs = wpa_s->p2p_go_do_acs;
6170                 group_wpa_s->p2p_go_acs_band = wpa_s->p2p_go_acs_band;
6171                 wpa_s->p2p_go_do_acs = 0;
6172         }
6173
6174         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
6175                 group_wpa_s->ifname);
6176         group_wpa_s->p2p_first_connection_timeout = 0;
6177         return group_wpa_s;
6178 }
6179
6180
6181 /**
6182  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
6183  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
6184  * @persistent_group: Whether to create a persistent group
6185  * @freq: Frequency for the group or 0 to indicate no hardcoding
6186  * @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
6187  * @ht40: Start GO with 40 MHz channel width
6188  * @vht:  Start GO with VHT support
6189  * @vht_chwidth: channel bandwidth for GO operating with VHT support
6190  * Returns: 0 on success, -1 on failure
6191  *
6192  * This function creates a new P2P group with the local end as the Group Owner,
6193  * i.e., without using Group Owner Negotiation.
6194  */
6195 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
6196                        int freq, int vht_center_freq2, int ht40, int vht,
6197                        int max_oper_chwidth)
6198 {
6199         struct p2p_go_neg_results params;
6200
6201         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6202                 return -1;
6203
6204         os_free(wpa_s->global->add_psk);
6205         wpa_s->global->add_psk = NULL;
6206
6207         /* Make sure we are not running find during connection establishment */
6208         wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
6209         wpas_p2p_stop_find_oper(wpa_s);
6210
6211         if (!wpa_s->p2p_go_do_acs) {
6212                 freq = wpas_p2p_select_go_freq(wpa_s, freq);
6213                 if (freq < 0)
6214                         return -1;
6215         }
6216
6217         if (wpas_p2p_init_go_params(wpa_s, &params, freq, vht_center_freq2,
6218                                     ht40, vht, max_oper_chwidth, NULL))
6219                 return -1;
6220
6221         p2p_go_params(wpa_s->global->p2p, &params);
6222         params.persistent_group = persistent_group;
6223
6224         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6225         if (wpa_s == NULL)
6226                 return -1;
6227         wpas_start_wps_go(wpa_s, &params, 0);
6228
6229         return 0;
6230 }
6231
6232
6233 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
6234                                  struct wpa_ssid *params, int addr_allocated,
6235                                  int freq, int force_scan)
6236 {
6237         struct wpa_ssid *ssid;
6238
6239         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6240         if (wpa_s == NULL)
6241                 return -1;
6242         if (force_scan)
6243                 os_get_reltime(&wpa_s->scan_min_time);
6244         wpa_s->p2p_last_4way_hs_fail = NULL;
6245
6246         wpa_supplicant_ap_deinit(wpa_s);
6247
6248         ssid = wpa_config_add_network(wpa_s->conf);
6249         if (ssid == NULL)
6250                 return -1;
6251         os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
6252         wpa_config_set_network_defaults(ssid);
6253         ssid->temporary = 1;
6254         ssid->proto = WPA_PROTO_RSN;
6255         ssid->pbss = params->pbss;
6256         ssid->pairwise_cipher = params->pbss ? WPA_CIPHER_GCMP :
6257                 WPA_CIPHER_CCMP;
6258         ssid->group_cipher = params->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
6259         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6260         ssid->ssid = os_malloc(params->ssid_len);
6261         if (ssid->ssid == NULL) {
6262                 wpa_config_remove_network(wpa_s->conf, ssid->id);
6263                 return -1;
6264         }
6265         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6266         ssid->ssid_len = params->ssid_len;
6267         ssid->p2p_group = 1;
6268         ssid->export_keys = 1;
6269         if (params->psk_set) {
6270                 os_memcpy(ssid->psk, params->psk, 32);
6271                 ssid->psk_set = 1;
6272         }
6273         if (params->passphrase)
6274                 ssid->passphrase = os_strdup(params->passphrase);
6275
6276         wpa_s->show_group_started = 1;
6277         wpa_s->p2p_in_invitation = 1;
6278         wpa_s->p2p_invite_go_freq = freq;
6279         wpa_s->p2p_go_group_formation_completed = 0;
6280         wpa_s->global->p2p_group_formation = wpa_s;
6281
6282         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6283                              NULL);
6284         eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6285                                wpas_p2p_group_formation_timeout,
6286                                wpa_s->p2pdev, NULL);
6287         wpa_supplicant_select_network(wpa_s, ssid);
6288
6289         return 0;
6290 }
6291
6292
6293 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6294                                   struct wpa_ssid *ssid, int addr_allocated,
6295                                   int force_freq, int neg_freq,
6296                                   int vht_center_freq2, int ht40,
6297                                   int vht, int max_oper_chwidth,
6298                                   const struct p2p_channels *channels,
6299                                   int connection_timeout, int force_scan)
6300 {
6301         struct p2p_go_neg_results params;
6302         int go = 0, freq;
6303
6304         if (ssid->disabled != 2 || ssid->ssid == NULL)
6305                 return -1;
6306
6307         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6308             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6309                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6310                            "already running");
6311                 if (go == 0 &&
6312                     eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6313                                          wpa_s->p2pdev, NULL)) {
6314                         /*
6315                          * This can happen if Invitation Response frame was lost
6316                          * and the peer (GO of a persistent group) tries to
6317                          * invite us again. Reschedule the timeout to avoid
6318                          * terminating the wait for the connection too early
6319                          * since we now know that the peer is still trying to
6320                          * invite us instead of having already started the GO.
6321                          */
6322                         wpa_printf(MSG_DEBUG,
6323                                    "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6324                         eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6325                                                wpas_p2p_group_formation_timeout,
6326                                                wpa_s->p2pdev, NULL);
6327                 }
6328                 return 0;
6329         }
6330
6331         os_free(wpa_s->global->add_psk);
6332         wpa_s->global->add_psk = NULL;
6333
6334         /* Make sure we are not running find during connection establishment */
6335         wpas_p2p_stop_find_oper(wpa_s);
6336
6337         wpa_s->p2p_fallback_to_go_neg = 0;
6338
6339         if (ssid->mode == WPAS_MODE_P2P_GO) {
6340                 if (force_freq > 0) {
6341                         freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6342                         if (freq < 0)
6343                                 return -1;
6344                 } else {
6345                         freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6346                         if (freq < 0 ||
6347                             (freq > 0 && !freq_included(wpa_s, channels, freq)))
6348                                 freq = 0;
6349                 }
6350         } else if (ssid->mode == WPAS_MODE_INFRA) {
6351                 freq = neg_freq;
6352                 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
6353                         struct os_reltime now;
6354                         struct wpa_bss *bss =
6355                                 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6356
6357                         os_get_reltime(&now);
6358                         if (bss &&
6359                             !os_reltime_expired(&now, &bss->last_update, 5) &&
6360                             freq_included(wpa_s, channels, bss->freq))
6361                                 freq = bss->freq;
6362                         else
6363                                 freq = 0;
6364                 }
6365
6366                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6367                                              force_scan);
6368         } else {
6369                 return -1;
6370         }
6371
6372         if (wpas_p2p_init_go_params(wpa_s, &params, freq, vht_center_freq2,
6373                                     ht40, vht, max_oper_chwidth, channels))
6374                 return -1;
6375
6376         params.role_go = 1;
6377         params.psk_set = ssid->psk_set;
6378         if (params.psk_set)
6379                 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
6380         if (ssid->passphrase) {
6381                 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6382                         wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6383                                    "persistent group");
6384                         return -1;
6385                 }
6386                 os_strlcpy(params.passphrase, ssid->passphrase,
6387                            sizeof(params.passphrase));
6388         }
6389         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6390         params.ssid_len = ssid->ssid_len;
6391         params.persistent_group = 1;
6392
6393         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6394         if (wpa_s == NULL)
6395                 return -1;
6396
6397         p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6398
6399         wpa_s->p2p_first_connection_timeout = connection_timeout;
6400         wpas_start_wps_go(wpa_s, &params, 0);
6401
6402         return 0;
6403 }
6404
6405
6406 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6407                                struct wpabuf *proberesp_ies)
6408 {
6409         struct wpa_supplicant *wpa_s = ctx;
6410         if (wpa_s->ap_iface) {
6411                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
6412                 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6413                         wpabuf_free(beacon_ies);
6414                         wpabuf_free(proberesp_ies);
6415                         return;
6416                 }
6417                 if (beacon_ies) {
6418                         wpabuf_free(hapd->p2p_beacon_ie);
6419                         hapd->p2p_beacon_ie = beacon_ies;
6420                 }
6421                 wpabuf_free(hapd->p2p_probe_resp_ie);
6422                 hapd->p2p_probe_resp_ie = proberesp_ies;
6423         } else {
6424                 wpabuf_free(beacon_ies);
6425                 wpabuf_free(proberesp_ies);
6426         }
6427         wpa_supplicant_ap_update_beacon(wpa_s);
6428 }
6429
6430
6431 static void wpas_p2p_idle_update(void *ctx, int idle)
6432 {
6433         struct wpa_supplicant *wpa_s = ctx;
6434         if (!wpa_s->ap_iface)
6435                 return;
6436         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6437         if (idle) {
6438                 if (wpa_s->global->p2p_fail_on_wps_complete &&
6439                     wpa_s->p2p_in_provisioning) {
6440                         wpas_p2p_grpform_fail_after_wps(wpa_s);
6441                         return;
6442                 }
6443                 wpas_p2p_set_group_idle_timeout(wpa_s);
6444         } else
6445                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6446 }
6447
6448
6449 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6450                                        struct wpa_ssid *ssid)
6451 {
6452         struct p2p_group *group;
6453         struct p2p_group_config *cfg;
6454
6455         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6456             !ssid->p2p_group)
6457                 return NULL;
6458
6459         cfg = os_zalloc(sizeof(*cfg));
6460         if (cfg == NULL)
6461                 return NULL;
6462
6463         if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6464                 cfg->persistent_group = 2;
6465         else if (ssid->p2p_persistent_group)
6466                 cfg->persistent_group = 1;
6467         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6468         if (wpa_s->max_stations &&
6469             wpa_s->max_stations < wpa_s->conf->max_num_sta)
6470                 cfg->max_clients = wpa_s->max_stations;
6471         else
6472                 cfg->max_clients = wpa_s->conf->max_num_sta;
6473         os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6474         cfg->ssid_len = ssid->ssid_len;
6475         cfg->freq = ssid->frequency;
6476         cfg->cb_ctx = wpa_s;
6477         cfg->ie_update = wpas_p2p_ie_update;
6478         cfg->idle_update = wpas_p2p_idle_update;
6479         cfg->ip_addr_alloc = WPA_GET_BE32(wpa_s->p2pdev->conf->ip_addr_start)
6480                 != 0;
6481
6482         group = p2p_group_init(wpa_s->global->p2p, cfg);
6483         if (group == NULL)
6484                 os_free(cfg);
6485         if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6486                 p2p_group_notif_formation_done(group);
6487         wpa_s->p2p_group = group;
6488         return group;
6489 }
6490
6491
6492 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6493                           int registrar)
6494 {
6495         struct wpa_ssid *ssid = wpa_s->current_ssid;
6496
6497         if (!wpa_s->p2p_in_provisioning) {
6498                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6499                            "provisioning not in progress");
6500                 return;
6501         }
6502
6503         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6504                 u8 go_dev_addr[ETH_ALEN];
6505                 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6506                 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6507                                           ssid->ssid_len);
6508                 /* Clear any stored provisioning info */
6509                 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6510         }
6511
6512         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
6513                              NULL);
6514         wpa_s->p2p_go_group_formation_completed = 1;
6515         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6516                 /*
6517                  * Use a separate timeout for initial data connection to
6518                  * complete to allow the group to be removed automatically if
6519                  * something goes wrong in this step before the P2P group idle
6520                  * timeout mechanism is taken into use.
6521                  */
6522                 wpa_dbg(wpa_s, MSG_DEBUG,
6523                         "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6524                         P2P_MAX_INITIAL_CONN_WAIT);
6525                 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6526                                        wpas_p2p_group_formation_timeout,
6527                                        wpa_s->p2pdev, NULL);
6528                 /* Complete group formation on successful data connection. */
6529                 wpa_s->p2p_go_group_formation_completed = 0;
6530         } else if (ssid) {
6531                 /*
6532                  * Use a separate timeout for initial data connection to
6533                  * complete to allow the group to be removed automatically if
6534                  * the client does not complete data connection successfully.
6535                  */
6536                 wpa_dbg(wpa_s, MSG_DEBUG,
6537                         "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6538                         P2P_MAX_INITIAL_CONN_WAIT_GO);
6539                 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6540                                        wpas_p2p_group_formation_timeout,
6541                                        wpa_s->p2pdev, NULL);
6542                 /*
6543                  * Complete group formation on first successful data connection
6544                  */
6545                 wpa_s->p2p_go_group_formation_completed = 0;
6546         }
6547         if (wpa_s->global->p2p)
6548                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6549         wpas_group_formation_completed(wpa_s, 1, 0);
6550 }
6551
6552
6553 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6554                          struct wps_event_fail *fail)
6555 {
6556         if (!wpa_s->p2p_in_provisioning) {
6557                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6558                            "provisioning not in progress");
6559                 return;
6560         }
6561
6562         if (wpa_s->go_params) {
6563                 p2p_clear_provisioning_info(
6564                         wpa_s->global->p2p,
6565                         wpa_s->go_params->peer_device_addr);
6566         }
6567
6568         wpas_notify_p2p_wps_failed(wpa_s, fail);
6569
6570         if (wpa_s == wpa_s->global->p2p_group_formation) {
6571                 /*
6572                  * Allow some time for the failed WPS negotiation exchange to
6573                  * complete, but remove the group since group formation cannot
6574                  * succeed after provisioning failure.
6575                  */
6576                 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6577                 wpa_s->global->p2p_fail_on_wps_complete = 1;
6578                 eloop_deplete_timeout(0, 50000,
6579                                       wpas_p2p_group_formation_timeout,
6580                                       wpa_s->p2pdev, NULL);
6581         }
6582 }
6583
6584
6585 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6586 {
6587         if (!wpa_s->global->p2p_fail_on_wps_complete ||
6588             !wpa_s->p2p_in_provisioning)
6589                 return 0;
6590
6591         wpas_p2p_grpform_fail_after_wps(wpa_s);
6592
6593         return 1;
6594 }
6595
6596
6597 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6598                        const char *config_method,
6599                        enum wpas_p2p_prov_disc_use use,
6600                        struct p2ps_provision *p2ps_prov)
6601 {
6602         u16 config_methods;
6603
6604         wpa_s->global->pending_p2ps_group = 0;
6605         wpa_s->global->pending_p2ps_group_freq = 0;
6606         wpa_s->p2p_fallback_to_go_neg = 0;
6607         wpa_s->pending_pd_use = NORMAL_PD;
6608         if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6609                 p2ps_prov->conncap = p2ps_group_capability(
6610                         wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6611                         &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6612
6613                 wpa_printf(MSG_DEBUG,
6614                            "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6615                            __func__, p2ps_prov->conncap,
6616                            p2ps_prov->adv_id, p2ps_prov->conncap,
6617                            p2ps_prov->status, p2ps_prov->info);
6618
6619                 config_methods = 0;
6620         } else if (os_strncmp(config_method, "display", 7) == 0)
6621                 config_methods = WPS_CONFIG_DISPLAY;
6622         else if (os_strncmp(config_method, "keypad", 6) == 0)
6623                 config_methods = WPS_CONFIG_KEYPAD;
6624         else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6625                  os_strncmp(config_method, "pushbutton", 10) == 0)
6626                 config_methods = WPS_CONFIG_PUSHBUTTON;
6627         else {
6628                 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6629                 os_free(p2ps_prov);
6630                 return -1;
6631         }
6632
6633         if (use == WPAS_P2P_PD_AUTO) {
6634                 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6635                 wpa_s->pending_pd_config_methods = config_methods;
6636                 wpa_s->p2p_auto_pd = 1;
6637                 wpa_s->p2p_auto_join = 0;
6638                 wpa_s->pending_pd_before_join = 0;
6639                 wpa_s->auto_pd_scan_retry = 0;
6640                 wpas_p2p_stop_find(wpa_s);
6641                 wpa_s->p2p_join_scan_count = 0;
6642                 os_get_reltime(&wpa_s->p2p_auto_started);
6643                 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6644                            wpa_s->p2p_auto_started.sec,
6645                            wpa_s->p2p_auto_started.usec);
6646                 wpas_p2p_join_scan(wpa_s, NULL);
6647                 return 0;
6648         }
6649
6650         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6651                 os_free(p2ps_prov);
6652                 return -1;
6653         }
6654
6655         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6656                                  config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6657                                  0, 1);
6658 }
6659
6660
6661 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6662                               char *end)
6663 {
6664         return p2p_scan_result_text(ies, ies_len, buf, end);
6665 }
6666
6667
6668 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6669 {
6670         if (!offchannel_pending_action_tx(wpa_s))
6671                 return;
6672
6673         if (wpa_s->p2p_send_action_work) {
6674                 wpas_p2p_free_send_action_work(wpa_s);
6675                 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
6676                                      wpa_s, NULL);
6677                 offchannel_send_action_done(wpa_s);
6678         }
6679
6680         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6681                    "operation request");
6682         offchannel_clear_pending_action_tx(wpa_s);
6683 }
6684
6685
6686 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6687                   enum p2p_discovery_type type,
6688                   unsigned int num_req_dev_types, const u8 *req_dev_types,
6689                   const u8 *dev_id, unsigned int search_delay,
6690                   u8 seek_cnt, const char **seek_string, int freq)
6691 {
6692         wpas_p2p_clear_pending_action_tx(wpa_s);
6693         wpa_s->p2p_long_listen = 0;
6694
6695         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6696             wpa_s->p2p_in_provisioning) {
6697                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Reject p2p_find operation%s%s",
6698                         (wpa_s->global->p2p_disabled || !wpa_s->global->p2p) ?
6699                         " (P2P disabled)" : "",
6700                         wpa_s->p2p_in_provisioning ?
6701                         " (p2p_in_provisioning)" : "");
6702                 return -1;
6703         }
6704
6705         wpa_supplicant_cancel_sched_scan(wpa_s);
6706
6707         return p2p_find(wpa_s->global->p2p, timeout, type,
6708                         num_req_dev_types, req_dev_types, dev_id,
6709                         search_delay, seek_cnt, seek_string, freq);
6710 }
6711
6712
6713 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6714                                             struct wpa_scan_results *scan_res)
6715 {
6716         wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6717
6718         if (wpa_s->p2p_scan_work) {
6719                 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6720                 wpa_s->p2p_scan_work = NULL;
6721                 radio_work_done(work);
6722         }
6723
6724         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6725                 return;
6726
6727         /*
6728          * Indicate that results have been processed so that the P2P module can
6729          * continue pending tasks.
6730          */
6731         p2p_scan_res_handled(wpa_s->global->p2p);
6732 }
6733
6734
6735 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6736 {
6737         wpas_p2p_clear_pending_action_tx(wpa_s);
6738         wpa_s->p2p_long_listen = 0;
6739         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6740         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6741
6742         if (wpa_s->global->p2p)
6743                 p2p_stop_find(wpa_s->global->p2p);
6744
6745         if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6746                 wpa_printf(MSG_DEBUG,
6747                            "P2P: Do not consider the scan results after stop_find");
6748                 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6749         }
6750 }
6751
6752
6753 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6754 {
6755         wpas_p2p_stop_find_oper(wpa_s);
6756         if (!wpa_s->global->pending_group_iface_for_p2ps)
6757                 wpas_p2p_remove_pending_group_interface(wpa_s);
6758 }
6759
6760
6761 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6762 {
6763         struct wpa_supplicant *wpa_s = eloop_ctx;
6764         wpa_s->p2p_long_listen = 0;
6765 }
6766
6767
6768 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6769 {
6770         int res;
6771
6772         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6773                 return -1;
6774
6775         if (wpa_s->p2p_lo_started) {
6776                 wpa_printf(MSG_DEBUG,
6777                         "P2P: Cannot start P2P listen, it is offloaded");
6778                 return -1;
6779         }
6780
6781         wpa_supplicant_cancel_sched_scan(wpa_s);
6782         wpas_p2p_clear_pending_action_tx(wpa_s);
6783
6784         if (timeout == 0) {
6785                 /*
6786                  * This is a request for unlimited Listen state. However, at
6787                  * least for now, this is mapped to a Listen state for one
6788                  * hour.
6789                  */
6790                 timeout = 3600;
6791         }
6792         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6793         wpa_s->p2p_long_listen = 0;
6794
6795         /*
6796          * Stop previous find/listen operation to avoid trying to request a new
6797          * remain-on-channel operation while the driver is still running the
6798          * previous one.
6799          */
6800         if (wpa_s->global->p2p)
6801                 p2p_stop_find(wpa_s->global->p2p);
6802
6803         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6804         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6805                 wpa_s->p2p_long_listen = timeout * 1000;
6806                 eloop_register_timeout(timeout, 0,
6807                                        wpas_p2p_long_listen_timeout,
6808                                        wpa_s, NULL);
6809         }
6810
6811         return res;
6812 }
6813
6814
6815 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6816                           u8 *buf, size_t len, int p2p_group)
6817 {
6818         struct wpabuf *p2p_ie;
6819         int ret;
6820
6821         if (wpa_s->global->p2p_disabled)
6822                 return -1;
6823         /*
6824          * Advertize mandatory cross connection capability even on
6825          * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6826          */
6827         if (wpa_s->conf->p2p_disabled && p2p_group)
6828                 return -1;
6829         if (wpa_s->global->p2p == NULL)
6830                 return -1;
6831         if (bss == NULL)
6832                 return -1;
6833
6834         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6835         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6836                                p2p_group, p2p_ie);
6837         wpabuf_free(p2p_ie);
6838
6839         return ret;
6840 }
6841
6842
6843 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6844                           const u8 *dst, const u8 *bssid,
6845                           const u8 *ie, size_t ie_len,
6846                           unsigned int rx_freq, int ssi_signal)
6847 {
6848         if (wpa_s->global->p2p_disabled)
6849                 return 0;
6850         if (wpa_s->global->p2p == NULL)
6851                 return 0;
6852
6853         switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6854                                  ie, ie_len, rx_freq, wpa_s->p2p_lo_started)) {
6855         case P2P_PREQ_NOT_P2P:
6856                 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6857                                  ssi_signal);
6858                 /* fall through */
6859         case P2P_PREQ_MALFORMED:
6860         case P2P_PREQ_NOT_LISTEN:
6861         case P2P_PREQ_NOT_PROCESSED:
6862         default: /* make gcc happy */
6863                 return 0;
6864         case P2P_PREQ_PROCESSED:
6865                 return 1;
6866         }
6867 }
6868
6869
6870 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6871                         const u8 *sa, const u8 *bssid,
6872                         u8 category, const u8 *data, size_t len, int freq)
6873 {
6874         if (wpa_s->global->p2p_disabled)
6875                 return;
6876         if (wpa_s->global->p2p == NULL)
6877                 return;
6878
6879         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6880                       freq);
6881 }
6882
6883
6884 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6885 {
6886         unsigned int bands;
6887
6888         if (wpa_s->global->p2p_disabled)
6889                 return;
6890         if (wpa_s->global->p2p == NULL)
6891                 return;
6892
6893         bands = wpas_get_bands(wpa_s, NULL);
6894         p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
6895 }
6896
6897
6898 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6899 {
6900         p2p_group_deinit(wpa_s->p2p_group);
6901         wpa_s->p2p_group = NULL;
6902
6903         wpa_s->ap_configured_cb = NULL;
6904         wpa_s->ap_configured_cb_ctx = NULL;
6905         wpa_s->ap_configured_cb_data = NULL;
6906         wpa_s->connect_without_scan = NULL;
6907 }
6908
6909
6910 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6911 {
6912         wpa_s->p2p_long_listen = 0;
6913
6914         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6915                 return -1;
6916
6917         return p2p_reject(wpa_s->global->p2p, addr);
6918 }
6919
6920
6921 /* Invite to reinvoke a persistent group */
6922 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6923                     struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6924                     int vht_center_freq2, int ht40, int vht, int max_chwidth,
6925                     int pref_freq)
6926 {
6927         enum p2p_invite_role role;
6928         u8 *bssid = NULL;
6929         int force_freq = 0;
6930         int res;
6931         int no_pref_freq_given = pref_freq == 0;
6932         unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6933
6934         wpa_s->global->p2p_invite_group = NULL;
6935         if (peer_addr)
6936                 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6937         else
6938                 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6939
6940         wpa_s->p2p_persistent_go_freq = freq;
6941         wpa_s->p2p_go_ht40 = !!ht40;
6942         wpa_s->p2p_go_vht = !!vht;
6943         wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
6944         wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
6945         if (ssid->mode == WPAS_MODE_P2P_GO) {
6946                 role = P2P_INVITE_ROLE_GO;
6947                 if (peer_addr == NULL) {
6948                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6949                                    "address in invitation command");
6950                         return -1;
6951                 }
6952                 if (wpas_p2p_create_iface(wpa_s)) {
6953                         if (wpas_p2p_add_group_interface(wpa_s,
6954                                                          WPA_IF_P2P_GO) < 0) {
6955                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
6956                                            "allocate a new interface for the "
6957                                            "group");
6958                                 return -1;
6959                         }
6960                         bssid = wpa_s->pending_interface_addr;
6961                 } else if (wpa_s->p2p_mgmt)
6962                         bssid = wpa_s->parent->own_addr;
6963                 else
6964                         bssid = wpa_s->own_addr;
6965         } else {
6966                 role = P2P_INVITE_ROLE_CLIENT;
6967                 peer_addr = ssid->bssid;
6968         }
6969         wpa_s->pending_invite_ssid_id = ssid->id;
6970
6971         size = P2P_MAX_PREF_CHANNELS;
6972         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6973                                    role == P2P_INVITE_ROLE_GO,
6974                                    pref_freq_list, &size);
6975         if (res)
6976                 return res;
6977
6978         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6979                 return -1;
6980
6981         p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6982
6983         if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6984             no_pref_freq_given && pref_freq > 0 &&
6985             wpa_s->num_multichan_concurrent > 1 &&
6986             wpas_p2p_num_unused_channels(wpa_s) > 0) {
6987                 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6988                            pref_freq);
6989                 pref_freq = 0;
6990         }
6991
6992         /*
6993          * Stop any find/listen operations before invitation and possibly
6994          * connection establishment.
6995          */
6996         wpas_p2p_stop_find_oper(wpa_s);
6997
6998         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6999                           ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
7000                           1, pref_freq, -1);
7001 }
7002
7003
7004 /* Invite to join an active group */
7005 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
7006                           const u8 *peer_addr, const u8 *go_dev_addr)
7007 {
7008         struct wpa_global *global = wpa_s->global;
7009         enum p2p_invite_role role;
7010         u8 *bssid = NULL;
7011         struct wpa_ssid *ssid;
7012         int persistent;
7013         int freq = 0, force_freq = 0, pref_freq = 0;
7014         int res;
7015         unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
7016
7017         wpa_s->p2p_persistent_go_freq = 0;
7018         wpa_s->p2p_go_ht40 = 0;
7019         wpa_s->p2p_go_vht = 0;
7020         wpa_s->p2p_go_vht_center_freq2 = 0;
7021         wpa_s->p2p_go_max_oper_chwidth = 0;
7022
7023         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7024                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
7025                         break;
7026         }
7027         if (wpa_s == NULL) {
7028                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
7029                 return -1;
7030         }
7031
7032         ssid = wpa_s->current_ssid;
7033         if (ssid == NULL) {
7034                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
7035                            "invitation");
7036                 return -1;
7037         }
7038
7039         wpa_s->global->p2p_invite_group = wpa_s;
7040         persistent = ssid->p2p_persistent_group &&
7041                 wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr,
7042                                         ssid->ssid, ssid->ssid_len);
7043
7044         if (ssid->mode == WPAS_MODE_P2P_GO) {
7045                 role = P2P_INVITE_ROLE_ACTIVE_GO;
7046                 bssid = wpa_s->own_addr;
7047                 if (go_dev_addr == NULL)
7048                         go_dev_addr = wpa_s->global->p2p_dev_addr;
7049                 freq = ssid->frequency;
7050         } else {
7051                 role = P2P_INVITE_ROLE_CLIENT;
7052                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
7053                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
7054                                    "invite to current group");
7055                         return -1;
7056                 }
7057                 bssid = wpa_s->bssid;
7058                 if (go_dev_addr == NULL &&
7059                     !is_zero_ether_addr(wpa_s->go_dev_addr))
7060                         go_dev_addr = wpa_s->go_dev_addr;
7061                 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
7062                         (int) wpa_s->assoc_freq;
7063         }
7064         wpa_s->p2pdev->pending_invite_ssid_id = -1;
7065
7066         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7067                 return -1;
7068
7069         size = P2P_MAX_PREF_CHANNELS;
7070         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
7071                                    role == P2P_INVITE_ROLE_ACTIVE_GO,
7072                                    pref_freq_list, &size);
7073         if (res)
7074                 return res;
7075         wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
7076
7077         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
7078                           ssid->ssid, ssid->ssid_len, force_freq,
7079                           go_dev_addr, persistent, pref_freq, -1);
7080 }
7081
7082
7083 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
7084 {
7085         struct wpa_ssid *ssid = wpa_s->current_ssid;
7086         u8 go_dev_addr[ETH_ALEN];
7087         int persistent;
7088         int freq;
7089         u8 ip[3 * 4];
7090         char ip_addr[100];
7091
7092         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
7093                 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7094                                      wpa_s->p2pdev, NULL);
7095         }
7096
7097         if (!wpa_s->show_group_started || !ssid)
7098                 return;
7099
7100         wpa_s->show_group_started = 0;
7101         if (!wpa_s->p2p_go_group_formation_completed &&
7102             wpa_s->global->p2p_group_formation == wpa_s) {
7103                 wpa_dbg(wpa_s, MSG_DEBUG,
7104                         "P2P: Marking group formation completed on client on data connection");
7105                 wpa_s->p2p_go_group_formation_completed = 1;
7106                 wpa_s->global->p2p_group_formation = NULL;
7107                 wpa_s->p2p_in_provisioning = 0;
7108                 wpa_s->p2p_in_invitation = 0;
7109         }
7110
7111         os_memset(go_dev_addr, 0, ETH_ALEN);
7112         if (ssid->bssid_set)
7113                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
7114         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
7115                                                ssid->ssid_len);
7116         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
7117
7118         if (wpa_s->global->p2p_group_formation == wpa_s)
7119                 wpa_s->global->p2p_group_formation = NULL;
7120
7121         freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
7122                 (int) wpa_s->assoc_freq;
7123
7124         ip_addr[0] = '\0';
7125         if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
7126                 int res;
7127
7128                 res = os_snprintf(ip_addr, sizeof(ip_addr),
7129                                   " ip_addr=%u.%u.%u.%u "
7130                                   "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
7131                                   ip[0], ip[1], ip[2], ip[3],
7132                                   ip[4], ip[5], ip[6], ip[7],
7133                                   ip[8], ip[9], ip[10], ip[11]);
7134                 if (os_snprintf_error(sizeof(ip_addr), res))
7135                         ip_addr[0] = '\0';
7136         }
7137
7138         wpas_p2p_group_started(wpa_s, 0, ssid, freq,
7139                                ssid->passphrase == NULL && ssid->psk_set ?
7140                                ssid->psk : NULL,
7141                                ssid->passphrase, go_dev_addr, persistent,
7142                                ip_addr);
7143
7144         if (persistent)
7145                 wpas_p2p_store_persistent_group(wpa_s->p2pdev,
7146                                                 ssid, go_dev_addr);
7147
7148         wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 1, ip);
7149 }
7150
7151
7152 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
7153                           u32 interval1, u32 duration2, u32 interval2)
7154 {
7155         int ret;
7156
7157         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7158                 return -1;
7159
7160         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
7161             wpa_s->current_ssid == NULL ||
7162             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
7163                 return -1;
7164
7165         ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
7166                                wpa_s->own_addr, wpa_s->assoc_freq,
7167                                duration1, interval1, duration2, interval2);
7168         if (ret == 0)
7169                 wpa_s->waiting_presence_resp = 1;
7170
7171         return ret;
7172 }
7173
7174
7175 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
7176                         unsigned int interval)
7177 {
7178         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7179                 return -1;
7180
7181         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
7182 }
7183
7184
7185 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
7186 {
7187         if (wpa_s->current_ssid == NULL) {
7188                 /*
7189                  * current_ssid can be cleared when P2P client interface gets
7190                  * disconnected, so assume this interface was used as P2P
7191                  * client.
7192                  */
7193                 return 1;
7194         }
7195         return wpa_s->current_ssid->p2p_group &&
7196                 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
7197 }
7198
7199
7200 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
7201 {
7202         struct wpa_supplicant *wpa_s = eloop_ctx;
7203
7204         if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
7205                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
7206                            "disabled");
7207                 return;
7208         }
7209
7210         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
7211                    "group");
7212         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
7213 }
7214
7215
7216 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
7217 {
7218         int timeout;
7219
7220         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7221                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7222
7223         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7224                 return;
7225
7226         timeout = wpa_s->conf->p2p_group_idle;
7227         if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
7228             (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
7229             timeout = P2P_MAX_CLIENT_IDLE;
7230
7231         if (timeout == 0)
7232                 return;
7233
7234         if (timeout < 0) {
7235                 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
7236                         timeout = 0; /* special client mode no-timeout */
7237                 else
7238                         return;
7239         }
7240
7241         if (wpa_s->p2p_in_provisioning) {
7242                 /*
7243                  * Use the normal group formation timeout during the
7244                  * provisioning phase to avoid terminating this process too
7245                  * early due to group idle timeout.
7246                  */
7247                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7248                            "during provisioning");
7249                 return;
7250         }
7251
7252         if (wpa_s->show_group_started) {
7253                 /*
7254                  * Use the normal group formation timeout between the end of
7255                  * the provisioning phase and completion of 4-way handshake to
7256                  * avoid terminating this process too early due to group idle
7257                  * timeout.
7258                  */
7259                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7260                            "while waiting for initial 4-way handshake to "
7261                            "complete");
7262                 return;
7263         }
7264
7265         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
7266                    timeout);
7267         eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7268                                wpa_s, NULL);
7269 }
7270
7271
7272 /* Returns 1 if the interface was removed */
7273 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7274                           u16 reason_code, const u8 *ie, size_t ie_len,
7275                           int locally_generated)
7276 {
7277         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7278                 return 0;
7279
7280         if (!locally_generated)
7281                 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7282                                  ie_len);
7283
7284         if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7285             wpa_s->current_ssid &&
7286             wpa_s->current_ssid->p2p_group &&
7287             wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7288                 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7289                            "session is ending");
7290                 if (wpas_p2p_group_delete(wpa_s,
7291                                           P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7292                     > 0)
7293                         return 1;
7294         }
7295
7296         return 0;
7297 }
7298
7299
7300 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7301                              u16 reason_code, const u8 *ie, size_t ie_len,
7302                              int locally_generated)
7303 {
7304         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7305                 return;
7306
7307         if (!locally_generated)
7308                 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7309                                    ie_len);
7310 }
7311
7312
7313 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7314 {
7315         struct p2p_data *p2p = wpa_s->global->p2p;
7316
7317         if (p2p == NULL)
7318                 return;
7319
7320         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7321                 return;
7322
7323         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7324                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7325
7326         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7327                 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
7328
7329         if (wpa_s->wps &&
7330             (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7331                 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7332
7333         if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7334                 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7335
7336         if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7337                 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7338                 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7339                 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7340                 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7341         }
7342
7343         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7344                 p2p_set_sec_dev_types(p2p,
7345                                       (void *) wpa_s->conf->sec_device_type,
7346                                       wpa_s->conf->num_sec_device_types);
7347
7348         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7349                 int i;
7350                 p2p_remove_wps_vendor_extensions(p2p);
7351                 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7352                         if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7353                                 continue;
7354                         p2p_add_wps_vendor_extension(
7355                                 p2p, wpa_s->conf->wps_vendor_ext[i]);
7356                 }
7357         }
7358
7359         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7360             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7361                 char country[3];
7362                 country[0] = wpa_s->conf->country[0];
7363                 country[1] = wpa_s->conf->country[1];
7364                 country[2] = 0x04;
7365                 p2p_set_country(p2p, country);
7366         }
7367
7368         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7369                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7370                                      wpa_s->conf->p2p_ssid_postfix ?
7371                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7372                                      0);
7373         }
7374
7375         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7376                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
7377
7378         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7379                 u8 reg_class, channel;
7380                 int ret;
7381                 unsigned int r;
7382                 u8 channel_forced;
7383
7384                 if (wpa_s->conf->p2p_listen_reg_class &&
7385                     wpa_s->conf->p2p_listen_channel) {
7386                         reg_class = wpa_s->conf->p2p_listen_reg_class;
7387                         channel = wpa_s->conf->p2p_listen_channel;
7388                         channel_forced = 1;
7389                 } else {
7390                         reg_class = 81;
7391                         /*
7392                          * Pick one of the social channels randomly as the
7393                          * listen channel.
7394                          */
7395                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7396                                 channel = 1;
7397                         else
7398                                 channel = 1 + (r % 3) * 5;
7399                         channel_forced = 0;
7400                 }
7401                 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7402                                              channel_forced);
7403                 if (ret)
7404                         wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7405                                    "failed: %d", ret);
7406         }
7407         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7408                 u8 op_reg_class, op_channel, cfg_op_channel;
7409                 int ret = 0;
7410                 unsigned int r;
7411                 if (wpa_s->conf->p2p_oper_reg_class &&
7412                     wpa_s->conf->p2p_oper_channel) {
7413                         op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7414                         op_channel = wpa_s->conf->p2p_oper_channel;
7415                         cfg_op_channel = 1;
7416                 } else {
7417                         op_reg_class = 81;
7418                         /*
7419                          * Use random operation channel from (1, 6, 11)
7420                          *if no other preference is indicated.
7421                          */
7422                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7423                                 op_channel = 1;
7424                         else
7425                                 op_channel = 1 + (r % 3) * 5;
7426                         cfg_op_channel = 0;
7427                 }
7428                 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7429                                            cfg_op_channel);
7430                 if (ret)
7431                         wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7432                                    "failed: %d", ret);
7433         }
7434
7435         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7436                 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7437                                       wpa_s->conf->p2p_pref_chan) < 0) {
7438                         wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7439                                    "update failed");
7440                 }
7441
7442                 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7443                         wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7444                                    "update failed");
7445                 }
7446         }
7447
7448         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7449                 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
7450 }
7451
7452
7453 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7454                      int duration)
7455 {
7456         if (!wpa_s->ap_iface)
7457                 return -1;
7458         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7459                                    duration);
7460 }
7461
7462
7463 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7464 {
7465         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7466                 return -1;
7467
7468         wpa_s->global->cross_connection = enabled;
7469         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7470
7471         if (!enabled) {
7472                 struct wpa_supplicant *iface;
7473
7474                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7475                 {
7476                         if (iface->cross_connect_enabled == 0)
7477                                 continue;
7478
7479                         iface->cross_connect_enabled = 0;
7480                         iface->cross_connect_in_use = 0;
7481                         wpa_msg_global(iface->p2pdev, MSG_INFO,
7482                                        P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7483                                        iface->ifname,
7484                                        iface->cross_connect_uplink);
7485                 }
7486         }
7487
7488         return 0;
7489 }
7490
7491
7492 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7493 {
7494         struct wpa_supplicant *iface;
7495
7496         if (!uplink->global->cross_connection)
7497                 return;
7498
7499         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7500                 if (!iface->cross_connect_enabled)
7501                         continue;
7502                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7503                     0)
7504                         continue;
7505                 if (iface->ap_iface == NULL)
7506                         continue;
7507                 if (iface->cross_connect_in_use)
7508                         continue;
7509
7510                 iface->cross_connect_in_use = 1;
7511                 wpa_msg_global(iface->p2pdev, MSG_INFO,
7512                                P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7513                                iface->ifname, iface->cross_connect_uplink);
7514         }
7515 }
7516
7517
7518 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7519 {
7520         struct wpa_supplicant *iface;
7521
7522         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7523                 if (!iface->cross_connect_enabled)
7524                         continue;
7525                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7526                     0)
7527                         continue;
7528                 if (!iface->cross_connect_in_use)
7529                         continue;
7530
7531                 wpa_msg_global(iface->p2pdev, MSG_INFO,
7532                                P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7533                                iface->ifname, iface->cross_connect_uplink);
7534                 iface->cross_connect_in_use = 0;
7535         }
7536 }
7537
7538
7539 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7540 {
7541         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7542             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7543             wpa_s->cross_connect_disallowed)
7544                 wpas_p2p_disable_cross_connect(wpa_s);
7545         else
7546                 wpas_p2p_enable_cross_connect(wpa_s);
7547         if (!wpa_s->ap_iface &&
7548             eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7549                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7550 }
7551
7552
7553 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7554 {
7555         wpas_p2p_disable_cross_connect(wpa_s);
7556         if (!wpa_s->ap_iface &&
7557             !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7558                                          wpa_s, NULL))
7559                 wpas_p2p_set_group_idle_timeout(wpa_s);
7560 }
7561
7562
7563 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7564 {
7565         struct wpa_supplicant *iface;
7566
7567         if (!wpa_s->global->cross_connection)
7568                 return;
7569
7570         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7571                 if (iface == wpa_s)
7572                         continue;
7573                 if (iface->drv_flags &
7574                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7575                         continue;
7576                 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7577                     iface != wpa_s->parent)
7578                         continue;
7579
7580                 wpa_s->cross_connect_enabled = 1;
7581                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7582                            sizeof(wpa_s->cross_connect_uplink));
7583                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7584                            "%s to %s whenever uplink is available",
7585                            wpa_s->ifname, wpa_s->cross_connect_uplink);
7586
7587                 if (iface->ap_iface || iface->current_ssid == NULL ||
7588                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
7589                     iface->cross_connect_disallowed ||
7590                     iface->wpa_state != WPA_COMPLETED)
7591                         break;
7592
7593                 wpa_s->cross_connect_in_use = 1;
7594                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
7595                                P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7596                                wpa_s->ifname, wpa_s->cross_connect_uplink);
7597                 break;
7598         }
7599 }
7600
7601
7602 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7603 {
7604         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7605             !wpa_s->p2p_in_provisioning)
7606                 return 0; /* not P2P client operation */
7607
7608         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7609                    "session overlap");
7610         if (wpa_s != wpa_s->p2pdev)
7611                 wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP);
7612         wpas_p2p_group_formation_failed(wpa_s, 0);
7613         return 1;
7614 }
7615
7616
7617 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7618 {
7619         struct wpa_supplicant *wpa_s = eloop_ctx;
7620         wpas_p2p_notif_pbc_overlap(wpa_s);
7621 }
7622
7623
7624 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7625                                   enum wpas_p2p_channel_update_trig trig)
7626 {
7627         struct p2p_channels chan, cli_chan;
7628         struct wpa_used_freq_data *freqs = NULL;
7629         unsigned int num = wpa_s->num_multichan_concurrent;
7630
7631         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7632                 return;
7633
7634         freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7635         if (!freqs)
7636                 return;
7637
7638         num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7639
7640         os_memset(&chan, 0, sizeof(chan));
7641         os_memset(&cli_chan, 0, sizeof(cli_chan));
7642         if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7643                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7644                            "channel list");
7645                 return;
7646         }
7647
7648         p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7649
7650         wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7651
7652         /*
7653          * The used frequencies map changed, so it is possible that a GO is
7654          * using a channel that is no longer valid for P2P use. It is also
7655          * possible that due to policy consideration, it would be preferable to
7656          * move it to a frequency already used by other station interfaces.
7657          */
7658         wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7659
7660         os_free(freqs);
7661 }
7662
7663
7664 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7665                                      struct wpa_scan_results *scan_res)
7666 {
7667         wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7668 }
7669
7670
7671 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7672 {
7673         struct wpa_global *global = wpa_s->global;
7674         int found = 0;
7675         const u8 *peer;
7676
7677         if (global->p2p == NULL)
7678                 return -1;
7679
7680         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7681
7682         if (wpa_s->pending_interface_name[0] &&
7683             !is_zero_ether_addr(wpa_s->pending_interface_addr))
7684                 found = 1;
7685
7686         peer = p2p_get_go_neg_peer(global->p2p);
7687         if (peer) {
7688                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7689                            MACSTR, MAC2STR(peer));
7690                 p2p_unauthorize(global->p2p, peer);
7691                 found = 1;
7692         }
7693
7694         if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7695                 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7696                 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7697                 found = 1;
7698         }
7699
7700         if (wpa_s->pending_pd_before_join) {
7701                 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7702                 wpa_s->pending_pd_before_join = 0;
7703                 found = 1;
7704         }
7705
7706         wpas_p2p_stop_find(wpa_s);
7707
7708         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7709                 if (wpa_s == global->p2p_group_formation &&
7710                     (wpa_s->p2p_in_provisioning ||
7711                      wpa_s->parent->pending_interface_type ==
7712                      WPA_IF_P2P_CLIENT)) {
7713                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7714                                    "formation found - cancelling",
7715                                    wpa_s->ifname);
7716                         found = 1;
7717                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7718                                              wpa_s->p2pdev, NULL);
7719                         if (wpa_s->p2p_in_provisioning) {
7720                                 wpas_group_formation_completed(wpa_s, 0, 0);
7721                                 break;
7722                         }
7723                         wpas_p2p_group_delete(wpa_s,
7724                                               P2P_GROUP_REMOVAL_REQUESTED);
7725                         break;
7726                 } else if (wpa_s->p2p_in_invitation) {
7727                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7728                                    wpa_s->ifname);
7729                         found = 1;
7730                         wpas_p2p_group_formation_failed(wpa_s, 0);
7731                         break;
7732                 }
7733         }
7734
7735         if (!found) {
7736                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7737                 return -1;
7738         }
7739
7740         return 0;
7741 }
7742
7743
7744 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7745 {
7746         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7747                 return;
7748
7749         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7750                    "being available anymore");
7751         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7752 }
7753
7754
7755 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7756                                    int freq_24, int freq_5, int freq_overall)
7757 {
7758         struct p2p_data *p2p = wpa_s->global->p2p;
7759         if (p2p == NULL)
7760                 return;
7761         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7762 }
7763
7764
7765 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7766 {
7767         u8 peer[ETH_ALEN];
7768         struct p2p_data *p2p = wpa_s->global->p2p;
7769
7770         if (p2p == NULL)
7771                 return -1;
7772
7773         if (hwaddr_aton(addr, peer))
7774                 return -1;
7775
7776         return p2p_unauthorize(p2p, peer);
7777 }
7778
7779
7780 /**
7781  * wpas_p2p_disconnect - Disconnect from a P2P Group
7782  * @wpa_s: Pointer to wpa_supplicant data
7783  * Returns: 0 on success, -1 on failure
7784  *
7785  * This can be used to disconnect from a group in which the local end is a P2P
7786  * Client or to end a P2P Group in case the local end is the Group Owner. If a
7787  * virtual network interface was created for this group, that interface will be
7788  * removed. Otherwise, only the configured P2P group network will be removed
7789  * from the interface.
7790  */
7791 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7792 {
7793
7794         if (wpa_s == NULL)
7795                 return -1;
7796
7797         return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7798                 -1 : 0;
7799 }
7800
7801
7802 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7803 {
7804         int ret;
7805
7806         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7807                 return 0;
7808
7809         ret = p2p_in_progress(wpa_s->global->p2p);
7810         if (ret == 0) {
7811                 /*
7812                  * Check whether there is an ongoing WPS provisioning step (or
7813                  * other parts of group formation) on another interface since
7814                  * p2p_in_progress() does not report this to avoid issues for
7815                  * scans during such provisioning step.
7816                  */
7817                 if (wpa_s->global->p2p_group_formation &&
7818                     wpa_s->global->p2p_group_formation != wpa_s) {
7819                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7820                                 "in group formation",
7821                                 wpa_s->global->p2p_group_formation->ifname);
7822                         ret = 1;
7823                 }
7824         }
7825
7826         if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7827                 struct os_reltime now;
7828                 os_get_reltime(&now);
7829                 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7830                                        P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7831                         /* Wait for the first client has expired */
7832                         wpa_s->global->p2p_go_wait_client.sec = 0;
7833                 } else {
7834                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7835                         ret = 1;
7836                 }
7837         }
7838
7839         return ret;
7840 }
7841
7842
7843 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7844                               struct wpa_ssid *ssid)
7845 {
7846         if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7847             eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7848                                  wpa_s->p2pdev, NULL) > 0) {
7849                 /**
7850                  * Remove the network by scheduling the group formation
7851                  * timeout to happen immediately. The teardown code
7852                  * needs to be scheduled to run asynch later so that we
7853                  * don't delete data from under ourselves unexpectedly.
7854                  * Calling wpas_p2p_group_formation_timeout directly
7855                  * causes a series of crashes in WPS failure scenarios.
7856                  */
7857                 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7858                            "P2P group network getting removed");
7859                 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7860                                        wpa_s->p2pdev, NULL);
7861         }
7862 }
7863
7864
7865 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7866                                           const u8 *addr, const u8 *ssid,
7867                                           size_t ssid_len)
7868 {
7869         struct wpa_ssid *s;
7870         size_t i;
7871
7872         for (s = wpa_s->conf->ssid; s; s = s->next) {
7873                 if (s->disabled != 2)
7874                         continue;
7875                 if (ssid &&
7876                     (ssid_len != s->ssid_len ||
7877                      os_memcmp(ssid, s->ssid, ssid_len) != 0))
7878                         continue;
7879                 if (addr == NULL) {
7880                         if (s->mode == WPAS_MODE_P2P_GO)
7881                                 return s;
7882                         continue;
7883                 }
7884                 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7885                         return s; /* peer is GO in the persistent group */
7886                 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7887                         continue;
7888                 for (i = 0; i < s->num_p2p_clients; i++) {
7889                         if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7890                                       addr, ETH_ALEN) == 0)
7891                                 return s; /* peer is P2P client in persistent
7892                                            * group */
7893                 }
7894         }
7895
7896         return NULL;
7897 }
7898
7899
7900 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7901                                        const u8 *addr)
7902 {
7903         if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7904                                  wpa_s->p2pdev, NULL) > 0) {
7905                 /*
7906                  * This can happen if WPS provisioning step is not terminated
7907                  * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7908                  * peer was able to connect, there is no need to time out group
7909                  * formation after this, though. In addition, this is used with
7910                  * the initial connection wait on the GO as a separate formation
7911                  * timeout and as such, expected to be hit after the initial WPS
7912                  * provisioning step.
7913                  */
7914                 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7915
7916                 if (!wpa_s->p2p_go_group_formation_completed &&
7917                     !wpa_s->group_formation_reported) {
7918                         /*
7919                          * GO has not yet notified group formation success since
7920                          * the WPS step was not completed cleanly. Do that
7921                          * notification now since the P2P Client was able to
7922                          * connect and as such, must have received the
7923                          * credential from the WPS step.
7924                          */
7925                         if (wpa_s->global->p2p)
7926                                 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7927                         wpas_group_formation_completed(wpa_s, 1, 0);
7928                 }
7929         }
7930         if (!wpa_s->p2p_go_group_formation_completed) {
7931                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7932                 wpa_s->p2p_go_group_formation_completed = 1;
7933                 wpa_s->global->p2p_group_formation = NULL;
7934                 wpa_s->p2p_in_provisioning = 0;
7935                 wpa_s->p2p_in_invitation = 0;
7936         }
7937         wpa_s->global->p2p_go_wait_client.sec = 0;
7938         if (addr == NULL)
7939                 return;
7940         wpas_p2p_add_persistent_group_client(wpa_s, addr);
7941 }
7942
7943
7944 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7945                                        int group_added)
7946 {
7947         struct wpa_supplicant *group = wpa_s;
7948         int ret = 0;
7949
7950         if (wpa_s->global->p2p_group_formation)
7951                 group = wpa_s->global->p2p_group_formation;
7952         wpa_s = wpa_s->global->p2p_init_wpa_s;
7953         offchannel_send_action_done(wpa_s);
7954         if (group_added)
7955                 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7956         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7957         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7958                          wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7959                          0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7960                          wpa_s->p2p_go_vht_center_freq2,
7961                          wpa_s->p2p_persistent_id,
7962                          wpa_s->p2p_pd_before_go_neg,
7963                          wpa_s->p2p_go_ht40,
7964                          wpa_s->p2p_go_vht,
7965                          wpa_s->p2p_go_max_oper_chwidth, NULL, 0);
7966         return ret;
7967 }
7968
7969
7970 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7971 {
7972         int res;
7973
7974         if (!wpa_s->p2p_fallback_to_go_neg ||
7975             wpa_s->p2p_in_provisioning <= 5)
7976                 return 0;
7977
7978         if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7979                 return 0; /* peer operating as a GO */
7980
7981         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7982                 "fallback to GO Negotiation");
7983         wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7984                        "reason=GO-not-found");
7985         res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7986
7987         return res == 1 ? 2 : 1;
7988 }
7989
7990
7991 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7992 {
7993         struct wpa_supplicant *ifs;
7994
7995         if (wpa_s->wpa_state > WPA_SCANNING) {
7996                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7997                         "concurrent operation",
7998                         wpa_s->conf->p2p_search_delay);
7999                 return wpa_s->conf->p2p_search_delay;
8000         }
8001
8002         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8003                          radio_list) {
8004                 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
8005                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
8006                                 "delay due to concurrent operation on "
8007                                 "interface %s",
8008                                 wpa_s->conf->p2p_search_delay,
8009                                 ifs->ifname);
8010                         return wpa_s->conf->p2p_search_delay;
8011                 }
8012         }
8013
8014         return 0;
8015 }
8016
8017
8018 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
8019                                      struct wpa_ssid *s, const u8 *addr,
8020                                      int iface_addr)
8021 {
8022         struct psk_list_entry *psk, *tmp;
8023         int changed = 0;
8024
8025         dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
8026                               list) {
8027                 if ((iface_addr && !psk->p2p &&
8028                      os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
8029                     (!iface_addr && psk->p2p &&
8030                      os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
8031                         wpa_dbg(wpa_s, MSG_DEBUG,
8032                                 "P2P: Remove persistent group PSK list entry for "
8033                                 MACSTR " p2p=%u",
8034                                 MAC2STR(psk->addr), psk->p2p);
8035                         dl_list_del(&psk->list);
8036                         os_free(psk);
8037                         changed++;
8038                 }
8039         }
8040
8041         return changed;
8042 }
8043
8044
8045 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
8046                          const u8 *p2p_dev_addr,
8047                          const u8 *psk, size_t psk_len)
8048 {
8049         struct wpa_ssid *ssid = wpa_s->current_ssid;
8050         struct wpa_ssid *persistent;
8051         struct psk_list_entry *p, *last;
8052
8053         if (psk_len != sizeof(p->psk))
8054                 return;
8055
8056         if (p2p_dev_addr) {
8057                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
8058                         " p2p_dev_addr=" MACSTR,
8059                         MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
8060                 if (is_zero_ether_addr(p2p_dev_addr))
8061                         p2p_dev_addr = NULL;
8062         } else {
8063                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
8064                         MAC2STR(mac_addr));
8065         }
8066
8067         if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
8068                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
8069                 /* To be added to persistent group once created */
8070                 if (wpa_s->global->add_psk == NULL) {
8071                         wpa_s->global->add_psk = os_zalloc(sizeof(*p));
8072                         if (wpa_s->global->add_psk == NULL)
8073                                 return;
8074                 }
8075                 p = wpa_s->global->add_psk;
8076                 if (p2p_dev_addr) {
8077                         p->p2p = 1;
8078                         os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
8079                 } else {
8080                         p->p2p = 0;
8081                         os_memcpy(p->addr, mac_addr, ETH_ALEN);
8082                 }
8083                 os_memcpy(p->psk, psk, psk_len);
8084                 return;
8085         }
8086
8087         if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
8088                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
8089                 return;
8090         }
8091
8092         persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
8093                                              ssid->ssid_len);
8094         if (!persistent) {
8095                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
8096                 return;
8097         }
8098
8099         p = os_zalloc(sizeof(*p));
8100         if (p == NULL)
8101                 return;
8102         if (p2p_dev_addr) {
8103                 p->p2p = 1;
8104                 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
8105         } else {
8106                 p->p2p = 0;
8107                 os_memcpy(p->addr, mac_addr, ETH_ALEN);
8108         }
8109         os_memcpy(p->psk, psk, psk_len);
8110
8111         if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
8112             (last = dl_list_last(&persistent->psk_list,
8113                                  struct psk_list_entry, list))) {
8114                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
8115                         MACSTR " (p2p=%u) to make room for a new one",
8116                         MAC2STR(last->addr), last->p2p);
8117                 dl_list_del(&last->list);
8118                 os_free(last);
8119         }
8120
8121         wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent,
8122                                   p2p_dev_addr ? p2p_dev_addr : mac_addr,
8123                                   p2p_dev_addr == NULL);
8124         if (p2p_dev_addr) {
8125                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
8126                         MACSTR, MAC2STR(p2p_dev_addr));
8127         } else {
8128                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
8129                         MAC2STR(mac_addr));
8130         }
8131         dl_list_add(&persistent->psk_list, &p->list);
8132
8133         if (wpa_s->p2pdev->conf->update_config &&
8134             wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
8135                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
8136 }
8137
8138
8139 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
8140                                 struct wpa_ssid *s, const u8 *addr,
8141                                 int iface_addr)
8142 {
8143         int res;
8144
8145         res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
8146         if (res > 0 && wpa_s->conf->update_config &&
8147             wpa_config_write(wpa_s->confname, wpa_s->conf))
8148                 wpa_dbg(wpa_s, MSG_DEBUG,
8149                         "P2P: Failed to update configuration");
8150 }
8151
8152
8153 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
8154                                       const u8 *peer, int iface_addr)
8155 {
8156         struct hostapd_data *hapd;
8157         struct hostapd_wpa_psk *psk, *prev, *rem;
8158         struct sta_info *sta;
8159
8160         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
8161             wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
8162                 return;
8163
8164         /* Remove per-station PSK entry */
8165         hapd = wpa_s->ap_iface->bss[0];
8166         prev = NULL;
8167         psk = hapd->conf->ssid.wpa_psk;
8168         while (psk) {
8169                 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
8170                     (!iface_addr &&
8171                      os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
8172                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
8173                                 MACSTR " iface_addr=%d",
8174                                 MAC2STR(peer), iface_addr);
8175                         if (prev)
8176                                 prev->next = psk->next;
8177                         else
8178                                 hapd->conf->ssid.wpa_psk = psk->next;
8179                         rem = psk;
8180                         psk = psk->next;
8181                         os_free(rem);
8182                 } else {
8183                         prev = psk;
8184                         psk = psk->next;
8185                 }
8186         }
8187
8188         /* Disconnect from group */
8189         if (iface_addr)
8190                 sta = ap_get_sta(hapd, peer);
8191         else
8192                 sta = ap_get_sta_p2p(hapd, peer);
8193         if (sta) {
8194                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
8195                         " (iface_addr=%d) from group",
8196                         MAC2STR(peer), iface_addr);
8197                 hostapd_drv_sta_deauth(hapd, sta->addr,
8198                                        WLAN_REASON_DEAUTH_LEAVING);
8199                 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
8200         }
8201 }
8202
8203
8204 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
8205                             int iface_addr)
8206 {
8207         struct wpa_ssid *s;
8208         struct wpa_supplicant *w;
8209         struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
8210
8211         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
8212
8213         /* Remove from any persistent group */
8214         for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
8215                 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
8216                         continue;
8217                 if (!iface_addr)
8218                         wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
8219                 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
8220         }
8221
8222         /* Remove from any operating group */
8223         for (w = wpa_s->global->ifaces; w; w = w->next)
8224                 wpas_p2p_remove_client_go(w, peer, iface_addr);
8225 }
8226
8227
8228 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
8229 {
8230         struct wpa_supplicant *wpa_s = eloop_ctx;
8231         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
8232 }
8233
8234
8235 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
8236 {
8237         struct wpa_supplicant *wpa_s = eloop_ctx;
8238
8239         wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
8240         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
8241 }
8242
8243
8244 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
8245                                         struct wpa_ssid *ssid)
8246 {
8247         struct wpa_supplicant *iface;
8248
8249         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8250                 if (!iface->current_ssid ||
8251                     iface->current_ssid->frequency == freq ||
8252                     (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
8253                      !iface->current_ssid->p2p_group))
8254                         continue;
8255
8256                 /* Remove the connection with least priority */
8257                 if (!wpas_is_p2p_prioritized(iface)) {
8258                         /* STA connection has priority over existing
8259                          * P2P connection, so remove the interface. */
8260                         wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8261                         eloop_register_timeout(0, 0,
8262                                                wpas_p2p_group_freq_conflict,
8263                                                iface, NULL);
8264                         /* If connection in progress is P2P connection, do not
8265                          * proceed for the connection. */
8266                         if (wpa_s == iface)
8267                                 return -1;
8268                         else
8269                                 return 0;
8270                 } else {
8271                         /* P2P connection has priority, disable the STA network
8272                          */
8273                         wpa_supplicant_disable_network(wpa_s->global->ifaces,
8274                                                        ssid);
8275                         wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8276                                 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8277                         os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8278                                   ETH_ALEN);
8279                         /* If P2P connection is in progress, continue
8280                          * connecting...*/
8281                         if (wpa_s == iface)
8282                                 return 0;
8283                         else
8284                                 return -1;
8285                 }
8286         }
8287
8288         return 0;
8289 }
8290
8291
8292 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8293 {
8294         struct wpa_ssid *ssid = wpa_s->current_ssid;
8295
8296         if (ssid == NULL || !ssid->p2p_group)
8297                 return 0;
8298
8299         if (wpa_s->p2p_last_4way_hs_fail &&
8300             wpa_s->p2p_last_4way_hs_fail == ssid) {
8301                 u8 go_dev_addr[ETH_ALEN];
8302                 struct wpa_ssid *persistent;
8303
8304                 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8305                                               ssid->ssid,
8306                                               ssid->ssid_len) <= 0) {
8307                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8308                         goto disconnect;
8309                 }
8310
8311                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8312                         MACSTR, MAC2STR(go_dev_addr));
8313                 persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr,
8314                                                      ssid->ssid,
8315                                                      ssid->ssid_len);
8316                 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8317                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8318                         goto disconnect;
8319                 }
8320                 wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
8321                                P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8322                                persistent->id);
8323         disconnect:
8324                 wpa_s->p2p_last_4way_hs_fail = NULL;
8325                 /*
8326                  * Remove the group from a timeout to avoid issues with caller
8327                  * continuing to use the interface if this is on a P2P group
8328                  * interface.
8329                  */
8330                 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8331                                        wpa_s, NULL);
8332                 return 1;
8333         }
8334
8335         wpa_s->p2p_last_4way_hs_fail = ssid;
8336         return 0;
8337 }
8338
8339
8340 #ifdef CONFIG_WPS_NFC
8341
8342 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8343                                              struct wpabuf *p2p)
8344 {
8345         struct wpabuf *ret;
8346         size_t wsc_len;
8347
8348         if (p2p == NULL) {
8349                 wpabuf_free(wsc);
8350                 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8351                 return NULL;
8352         }
8353
8354         wsc_len = wsc ? wpabuf_len(wsc) : 0;
8355         ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
8356         if (ret == NULL) {
8357                 wpabuf_free(wsc);
8358                 wpabuf_free(p2p);
8359                 return NULL;
8360         }
8361
8362         wpabuf_put_be16(ret, wsc_len);
8363         if (wsc)
8364                 wpabuf_put_buf(ret, wsc);
8365         wpabuf_put_be16(ret, wpabuf_len(p2p));
8366         wpabuf_put_buf(ret, p2p);
8367
8368         wpabuf_free(wsc);
8369         wpabuf_free(p2p);
8370         wpa_hexdump_buf(MSG_DEBUG,
8371                         "P2P: Generated NFC connection handover message", ret);
8372
8373         if (ndef && ret) {
8374                 struct wpabuf *tmp;
8375                 tmp = ndef_build_p2p(ret);
8376                 wpabuf_free(ret);
8377                 if (tmp == NULL) {
8378                         wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8379                         return NULL;
8380                 }
8381                 ret = tmp;
8382         }
8383
8384         return ret;
8385 }
8386
8387
8388 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8389                              struct wpa_ssid **ssid, u8 *go_dev_addr)
8390 {
8391         struct wpa_supplicant *iface;
8392
8393         if (go_dev_addr)
8394                 os_memset(go_dev_addr, 0, ETH_ALEN);
8395         if (ssid)
8396                 *ssid = NULL;
8397         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8398                 if (iface->wpa_state < WPA_ASSOCIATING ||
8399                     iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8400                     !iface->current_ssid->p2p_group ||
8401                     iface->current_ssid->mode != WPAS_MODE_INFRA)
8402                         continue;
8403                 if (ssid)
8404                         *ssid = iface->current_ssid;
8405                 if (go_dev_addr)
8406                         os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
8407                 return iface->assoc_freq;
8408         }
8409         return 0;
8410 }
8411
8412
8413 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8414                                           int ndef)
8415 {
8416         struct wpabuf *wsc, *p2p;
8417         struct wpa_ssid *ssid;
8418         u8 go_dev_addr[ETH_ALEN];
8419         int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8420
8421         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8422                 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8423                 return NULL;
8424         }
8425
8426         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8427             wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8428                            &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8429                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8430                 return NULL;
8431         }
8432
8433         if (cli_freq == 0) {
8434                 wsc = wps_build_nfc_handover_req_p2p(
8435                         wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8436         } else
8437                 wsc = NULL;
8438         p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8439                                          go_dev_addr, ssid ? ssid->ssid : NULL,
8440                                          ssid ? ssid->ssid_len : 0);
8441
8442         return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8443 }
8444
8445
8446 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8447                                           int ndef, int tag)
8448 {
8449         struct wpabuf *wsc, *p2p;
8450         struct wpa_ssid *ssid;
8451         u8 go_dev_addr[ETH_ALEN];
8452         int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
8453
8454         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8455                 return NULL;
8456
8457         if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8458             wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8459                            &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8460                 return NULL;
8461
8462         if (cli_freq == 0) {
8463                 wsc = wps_build_nfc_handover_sel_p2p(
8464                         wpa_s->parent->wps,
8465                         tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8466                         DEV_PW_NFC_CONNECTION_HANDOVER,
8467                         wpa_s->conf->wps_nfc_dh_pubkey,
8468                         tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8469         } else
8470                 wsc = NULL;
8471         p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8472                                          go_dev_addr, ssid ? ssid->ssid : NULL,
8473                                          ssid ? ssid->ssid_len : 0);
8474
8475         return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8476 }
8477
8478
8479 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8480                                    struct p2p_nfc_params *params)
8481 {
8482         wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8483                    "connection handover (freq=%d)",
8484                    params->go_freq);
8485
8486         if (params->go_freq && params->go_ssid_len) {
8487                 wpa_s->p2p_wps_method = WPS_NFC;
8488                 wpa_s->pending_join_wps_method = WPS_NFC;
8489                 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8490                 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8491                           ETH_ALEN);
8492                 return wpas_p2p_join_start(wpa_s, params->go_freq,
8493                                            params->go_ssid,
8494                                            params->go_ssid_len);
8495         }
8496
8497         return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8498                                 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8499                                 params->go_freq, wpa_s->p2p_go_vht_center_freq2,
8500                                 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8501                                 params->go_ssid_len ? params->go_ssid : NULL,
8502                                 params->go_ssid_len);
8503 }
8504
8505
8506 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8507                                   struct p2p_nfc_params *params, int tag)
8508 {
8509         int res, persistent;
8510         struct wpa_ssid *ssid;
8511
8512         wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8513                    "connection handover");
8514         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8515                 ssid = wpa_s->current_ssid;
8516                 if (ssid == NULL)
8517                         continue;
8518                 if (ssid->mode != WPAS_MODE_P2P_GO)
8519                         continue;
8520                 if (wpa_s->ap_iface == NULL)
8521                         continue;
8522                 break;
8523         }
8524         if (wpa_s == NULL) {
8525                 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8526                 return -1;
8527         }
8528
8529         if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
8530             DEV_PW_NFC_CONNECTION_HANDOVER &&
8531             !wpa_s->p2pdev->p2p_oob_dev_pw) {
8532                 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8533                 return -1;
8534         }
8535         res = wpas_ap_wps_add_nfc_pw(
8536                 wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
8537                 wpa_s->p2pdev->p2p_oob_dev_pw,
8538                 wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
8539                 wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
8540         if (res)
8541                 return res;
8542
8543         if (!tag) {
8544                 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8545                 return 0;
8546         }
8547
8548         if (!params->peer ||
8549             !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8550                 return 0;
8551
8552         wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8553                    " to join", MAC2STR(params->peer->p2p_device_addr));
8554
8555         wpa_s->global->p2p_invite_group = wpa_s;
8556         persistent = ssid->p2p_persistent_group &&
8557                 wpas_p2p_get_persistent(wpa_s->p2pdev,
8558                                         params->peer->p2p_device_addr,
8559                                         ssid->ssid, ssid->ssid_len);
8560         wpa_s->p2pdev->pending_invite_ssid_id = -1;
8561
8562         return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8563                           P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8564                           ssid->ssid, ssid->ssid_len, ssid->frequency,
8565                           wpa_s->global->p2p_dev_addr, persistent, 0,
8566                           wpa_s->p2pdev->p2p_oob_dev_pw_id);
8567 }
8568
8569
8570 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8571                                     struct p2p_nfc_params *params,
8572                                     int forced_freq)
8573 {
8574         wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8575                    "connection handover");
8576         return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8577                                 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8578                                 forced_freq, wpa_s->p2p_go_vht_center_freq2,
8579                                 -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8580                                 NULL, 0);
8581 }
8582
8583
8584 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8585                                     struct p2p_nfc_params *params,
8586                                     int forced_freq)
8587 {
8588         int res;
8589
8590         wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8591                    "connection handover");
8592         res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8593                                WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8594                                forced_freq, wpa_s->p2p_go_vht_center_freq2,
8595                                -1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
8596                                NULL, 0);
8597         if (res)
8598                 return res;
8599
8600         res = wpas_p2p_listen(wpa_s, 60);
8601         if (res) {
8602                 p2p_unauthorize(wpa_s->global->p2p,
8603                                 params->peer->p2p_device_addr);
8604         }
8605
8606         return res;
8607 }
8608
8609
8610 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8611                                             const struct wpabuf *data,
8612                                             int sel, int tag, int forced_freq)
8613 {
8614         const u8 *pos, *end;
8615         u16 len, id;
8616         struct p2p_nfc_params params;
8617         int res;
8618
8619         os_memset(&params, 0, sizeof(params));
8620         params.sel = sel;
8621
8622         wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8623
8624         pos = wpabuf_head(data);
8625         end = pos + wpabuf_len(data);
8626
8627         if (end - pos < 2) {
8628                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8629                            "attributes");
8630                 return -1;
8631         }
8632         len = WPA_GET_BE16(pos);
8633         pos += 2;
8634         if (len > end - pos) {
8635                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8636                            "attributes");
8637                 return -1;
8638         }
8639         params.wsc_attr = pos;
8640         params.wsc_len = len;
8641         pos += len;
8642
8643         if (end - pos < 2) {
8644                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8645                            "attributes");
8646                 return -1;
8647         }
8648         len = WPA_GET_BE16(pos);
8649         pos += 2;
8650         if (len > end - pos) {
8651                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8652                            "attributes");
8653                 return -1;
8654         }
8655         params.p2p_attr = pos;
8656         params.p2p_len = len;
8657         pos += len;
8658
8659         wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8660                     params.wsc_attr, params.wsc_len);
8661         wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8662                     params.p2p_attr, params.p2p_len);
8663         if (pos < end) {
8664                 wpa_hexdump(MSG_DEBUG,
8665                             "P2P: Ignored extra data after P2P attributes",
8666                             pos, end - pos);
8667         }
8668
8669         res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
8670         if (res)
8671                 return res;
8672
8673         if (params.next_step == NO_ACTION)
8674                 return 0;
8675
8676         if (params.next_step == BOTH_GO) {
8677                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8678                         MAC2STR(params.peer->p2p_device_addr));
8679                 return 0;
8680         }
8681
8682         if (params.next_step == PEER_CLIENT) {
8683                 if (!is_zero_ether_addr(params.go_dev_addr)) {
8684                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8685                                 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8686                                 " ssid=\"%s\"",
8687                                 MAC2STR(params.peer->p2p_device_addr),
8688                                 params.go_freq,
8689                                 MAC2STR(params.go_dev_addr),
8690                                 wpa_ssid_txt(params.go_ssid,
8691                                              params.go_ssid_len));
8692                 } else {
8693                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8694                                 "peer=" MACSTR " freq=%d",
8695                                 MAC2STR(params.peer->p2p_device_addr),
8696                                 params.go_freq);
8697                 }
8698                 return 0;
8699         }
8700
8701         if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8702                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8703                         MACSTR, MAC2STR(params.peer->p2p_device_addr));
8704                 return 0;
8705         }
8706
8707         wpabuf_free(wpa_s->p2p_oob_dev_pw);
8708         wpa_s->p2p_oob_dev_pw = NULL;
8709
8710         if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8711                 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8712                            "received");
8713                 return -1;
8714         }
8715
8716         id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8717         wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8718         wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8719                     params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8720         os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8721                   params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8722         wpa_s->p2p_peer_oob_pk_hash_known = 1;
8723
8724         if (tag) {
8725                 if (id < 0x10) {
8726                         wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8727                                    "peer OOB Device Password Id %u", id);
8728                         return -1;
8729                 }
8730                 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8731                            "Device Password Id %u", id);
8732                 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8733                                 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8734                                 params.oob_dev_pw_len -
8735                                 WPS_OOB_PUBKEY_HASH_LEN - 2);
8736                 wpa_s->p2p_oob_dev_pw_id = id;
8737                 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8738                         params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8739                         params.oob_dev_pw_len -
8740                         WPS_OOB_PUBKEY_HASH_LEN - 2);
8741                 if (wpa_s->p2p_oob_dev_pw == NULL)
8742                         return -1;
8743
8744                 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8745                     wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8746                                    &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8747                         return -1;
8748         } else {
8749                 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8750                            "without Device Password");
8751                 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8752         }
8753
8754         switch (params.next_step) {
8755         case NO_ACTION:
8756         case BOTH_GO:
8757         case PEER_CLIENT:
8758                 /* already covered above */
8759                 return 0;
8760         case JOIN_GROUP:
8761                 return wpas_p2p_nfc_join_group(wpa_s, &params);
8762         case AUTH_JOIN:
8763                 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
8764         case INIT_GO_NEG:
8765                 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
8766         case RESP_GO_NEG:
8767                 /* TODO: use own OOB Dev Pw */
8768                 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
8769         }
8770
8771         return -1;
8772 }
8773
8774
8775 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8776                              const struct wpabuf *data, int forced_freq)
8777 {
8778         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8779                 return -1;
8780
8781         return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8782 }
8783
8784
8785 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8786                                  const struct wpabuf *req,
8787                                  const struct wpabuf *sel, int forced_freq)
8788 {
8789         struct wpabuf *tmp;
8790         int ret;
8791
8792         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8793                 return -1;
8794
8795         wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8796
8797         wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8798                           wpabuf_head(req), wpabuf_len(req));
8799         wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8800                           wpabuf_head(sel), wpabuf_len(sel));
8801         if (forced_freq)
8802                 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8803         tmp = ndef_parse_p2p(init ? sel : req);
8804         if (tmp == NULL) {
8805                 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8806                 return -1;
8807         }
8808
8809         ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8810                                                forced_freq);
8811         wpabuf_free(tmp);
8812
8813         return ret;
8814 }
8815
8816
8817 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8818 {
8819         const u8 *if_addr;
8820         int go_intent = wpa_s->conf->p2p_go_intent;
8821         struct wpa_supplicant *iface;
8822
8823         if (wpa_s->global->p2p == NULL)
8824                 return -1;
8825
8826         if (!enabled) {
8827                 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8828                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8829                 {
8830                         if (!iface->ap_iface)
8831                                 continue;
8832                         hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8833                 }
8834                 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8835                                                  0, NULL);
8836                 if (wpa_s->p2p_nfc_tag_enabled)
8837                         wpas_p2p_remove_pending_group_interface(wpa_s);
8838                 wpa_s->p2p_nfc_tag_enabled = 0;
8839                 return 0;
8840         }
8841
8842         if (wpa_s->global->p2p_disabled)
8843                 return -1;
8844
8845         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8846             wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8847             wpa_s->conf->wps_nfc_dev_pw == NULL ||
8848             wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8849                 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8850                            "to allow static handover cases");
8851                 return -1;
8852         }
8853
8854         wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8855
8856         wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8857         wpabuf_free(wpa_s->p2p_oob_dev_pw);
8858         wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8859         if (wpa_s->p2p_oob_dev_pw == NULL)
8860                 return -1;
8861         wpa_s->p2p_peer_oob_pk_hash_known = 0;
8862
8863         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8864             wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8865                 /*
8866                  * P2P Group Interface present and the command came on group
8867                  * interface, so enable the token for the current interface.
8868                  */
8869                 wpa_s->create_p2p_iface = 0;
8870         } else {
8871                 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8872         }
8873
8874         if (wpa_s->create_p2p_iface) {
8875                 enum wpa_driver_if_type iftype;
8876                 /* Prepare to add a new interface for the group */
8877                 iftype = WPA_IF_P2P_GROUP;
8878                 if (go_intent == 15)
8879                         iftype = WPA_IF_P2P_GO;
8880                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8881                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8882                                    "interface for the group");
8883                         return -1;
8884                 }
8885
8886                 if_addr = wpa_s->pending_interface_addr;
8887         } else if (wpa_s->p2p_mgmt)
8888                 if_addr = wpa_s->parent->own_addr;
8889         else
8890                 if_addr = wpa_s->own_addr;
8891
8892         wpa_s->p2p_nfc_tag_enabled = enabled;
8893
8894         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8895                 struct hostapd_data *hapd;
8896                 if (iface->ap_iface == NULL)
8897                         continue;
8898                 hapd = iface->ap_iface->bss[0];
8899                 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8900                 hapd->conf->wps_nfc_dh_pubkey =
8901                         wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8902                 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8903                 hapd->conf->wps_nfc_dh_privkey =
8904                         wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8905                 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8906                 hapd->conf->wps_nfc_dev_pw =
8907                         wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8908                 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8909
8910                 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8911                         wpa_dbg(iface, MSG_DEBUG,
8912                                 "P2P: Failed to enable NFC Tag for GO");
8913                 }
8914         }
8915         p2p_set_authorized_oob_dev_pw_id(
8916                 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8917                 if_addr);
8918
8919         return 0;
8920 }
8921
8922 #endif /* CONFIG_WPS_NFC */
8923
8924
8925 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8926                                              struct wpa_used_freq_data *freqs,
8927                                              unsigned int num)
8928 {
8929         u8 curr_chan, cand, chan;
8930         unsigned int i;
8931
8932         /*
8933          * If possible, optimize the Listen channel to be a channel that is
8934          * already used by one of the other interfaces.
8935          */
8936         if (!wpa_s->conf->p2p_optimize_listen_chan)
8937                 return;
8938
8939         if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8940                 return;
8941
8942         curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8943         for (i = 0, cand = 0; i < num; i++) {
8944                 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8945                 if (curr_chan == chan) {
8946                         cand = 0;
8947                         break;
8948                 }
8949
8950                 if (chan == 1 || chan == 6 || chan == 11)
8951                         cand = chan;
8952         }
8953
8954         if (cand) {
8955                 wpa_dbg(wpa_s, MSG_DEBUG,
8956                         "P2P: Update Listen channel to %u based on operating channel",
8957                         cand);
8958                 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8959         }
8960 }
8961
8962
8963 static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8964 {
8965         struct hostapd_config *conf;
8966         struct p2p_go_neg_results params;
8967         struct csa_settings csa_settings;
8968         struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8969         int old_freq = current_ssid->frequency;
8970         int ret;
8971
8972         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8973                 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8974                 return -1;
8975         }
8976
8977         /*
8978          * TODO: This function may not always work correctly. For example,
8979          * when we have a running GO and a BSS on a DFS channel.
8980          */
8981         if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, 0, 0, NULL)) {
8982                 wpa_dbg(wpa_s, MSG_DEBUG,
8983                         "P2P CSA: Failed to select new frequency for GO");
8984                 return -1;
8985         }
8986
8987         if (current_ssid->frequency == params.freq) {
8988                 wpa_dbg(wpa_s, MSG_DEBUG,
8989                         "P2P CSA: Selected same frequency - not moving GO");
8990                 return 0;
8991         }
8992
8993         conf = hostapd_config_defaults();
8994         if (!conf) {
8995                 wpa_dbg(wpa_s, MSG_DEBUG,
8996                         "P2P CSA: Failed to allocate default config");
8997                 return -1;
8998         }
8999
9000         current_ssid->frequency = params.freq;
9001         if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
9002                 wpa_dbg(wpa_s, MSG_DEBUG,
9003                         "P2P CSA: Failed to create new GO config");
9004                 ret = -1;
9005                 goto out;
9006         }
9007
9008         if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
9009                 wpa_dbg(wpa_s, MSG_DEBUG,
9010                         "P2P CSA: CSA to a different band is not supported");
9011                 ret = -1;
9012                 goto out;
9013         }
9014
9015         os_memset(&csa_settings, 0, sizeof(csa_settings));
9016         csa_settings.cs_count = P2P_GO_CSA_COUNT;
9017         csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
9018         csa_settings.freq_params.freq = params.freq;
9019         csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
9020         csa_settings.freq_params.ht_enabled = conf->ieee80211n;
9021         csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
9022
9023         if (conf->ieee80211ac) {
9024                 int freq1 = 0, freq2 = 0;
9025                 u8 chan, opclass;
9026
9027                 if (ieee80211_freq_to_channel_ext(params.freq,
9028                                                   conf->secondary_channel,
9029                                                   conf->vht_oper_chwidth,
9030                                                   &opclass, &chan) ==
9031                     NUM_HOSTAPD_MODES) {
9032                         wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
9033                         ret = -1;
9034                         goto out;
9035                 }
9036
9037                 if (conf->vht_oper_centr_freq_seg0_idx)
9038                         freq1 = ieee80211_chan_to_freq(
9039                                 NULL, opclass,
9040                                 conf->vht_oper_centr_freq_seg0_idx);
9041
9042                 if (conf->vht_oper_centr_freq_seg1_idx)
9043                         freq2 = ieee80211_chan_to_freq(
9044                                 NULL, opclass,
9045                                 conf->vht_oper_centr_freq_seg1_idx);
9046
9047                 if (freq1 < 0 || freq2 < 0) {
9048                         wpa_dbg(wpa_s, MSG_DEBUG,
9049                                 "P2P CSA: Selected invalid VHT center freqs");
9050                         ret = -1;
9051                         goto out;
9052                 }
9053
9054                 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
9055                 csa_settings.freq_params.center_freq1 = freq1;
9056                 csa_settings.freq_params.center_freq2 = freq2;
9057
9058                 switch (conf->vht_oper_chwidth) {
9059                 case VHT_CHANWIDTH_80MHZ:
9060                 case VHT_CHANWIDTH_80P80MHZ:
9061                         csa_settings.freq_params.bandwidth = 80;
9062                         break;
9063                 case VHT_CHANWIDTH_160MHZ:
9064                         csa_settings.freq_params.bandwidth = 160;
9065                         break;
9066                 }
9067         }
9068
9069         ret = ap_switch_channel(wpa_s, &csa_settings);
9070 out:
9071         current_ssid->frequency = old_freq;
9072         hostapd_config_free(conf);
9073         return ret;
9074 }
9075
9076
9077 static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
9078 {
9079         struct p2p_go_neg_results params;
9080         struct wpa_ssid *current_ssid = wpa_s->current_ssid;
9081
9082         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
9083
9084         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
9085                 current_ssid->frequency);
9086
9087         /* Stop the AP functionality */
9088         /* TODO: Should do this in a way that does not indicated to possible
9089          * P2P Clients in the group that the group is terminated. */
9090         wpa_supplicant_ap_deinit(wpa_s);
9091
9092         /* Reselect the GO frequency */
9093         if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, 0, 0, NULL)) {
9094                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
9095                 wpas_p2p_group_delete(wpa_s,
9096                                       P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
9097                 return;
9098         }
9099         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
9100                 params.freq);
9101
9102         if (params.freq &&
9103             !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
9104                 wpa_printf(MSG_DEBUG,
9105                            "P2P: Selected freq (%u MHz) is not valid for P2P",
9106                            params.freq);
9107                 wpas_p2p_group_delete(wpa_s,
9108                                       P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
9109                 return;
9110         }
9111
9112         /* Update the frequency */
9113         current_ssid->frequency = params.freq;
9114         wpa_s->connect_without_scan = current_ssid;
9115         wpa_s->reassociate = 1;
9116         wpa_s->disconnected = 0;
9117         wpa_supplicant_req_scan(wpa_s, 0, 0);
9118 }
9119
9120
9121 static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
9122 {
9123         struct wpa_supplicant *wpa_s = eloop_ctx;
9124
9125         if (!wpa_s->ap_iface || !wpa_s->current_ssid)
9126                 return;
9127
9128         wpas_p2p_go_update_common_freqs(wpa_s);
9129
9130         /* Do not move GO in the middle of a CSA */
9131         if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9132                 wpa_printf(MSG_DEBUG,
9133                            "P2P: CSA is in progress - not moving GO");
9134                 return;
9135         }
9136
9137         /*
9138          * First, try a channel switch flow. If it is not supported or fails,
9139          * take down the GO and bring it up again.
9140          */
9141         if (wpas_p2p_move_go_csa(wpa_s) < 0)
9142                 wpas_p2p_move_go_no_csa(wpa_s);
9143 }
9144
9145
9146 static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
9147 {
9148         struct wpa_supplicant *wpa_s = eloop_ctx;
9149         struct wpa_used_freq_data *freqs = NULL;
9150         unsigned int num = wpa_s->num_multichan_concurrent;
9151
9152         freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
9153         if (!freqs)
9154                 return;
9155
9156         num = get_shared_radio_freqs_data(wpa_s, freqs, num);
9157
9158         /* Previous attempt to move a GO was not possible -- try again. */
9159         wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
9160                                      WPAS_P2P_CHANNEL_UPDATE_ANY);
9161
9162         os_free(freqs);
9163 }
9164
9165
9166 /*
9167  * Consider moving a GO from its currently used frequency:
9168  * 1. It is possible that due to regulatory consideration the frequency
9169  *    can no longer be used and there is a need to evacuate the GO.
9170  * 2. It is possible that due to MCC considerations, it would be preferable
9171  *    to move the GO to a channel that is currently used by some other
9172  *    station interface.
9173  *
9174  * In case a frequency that became invalid is once again valid, cancel a
9175  * previously initiated GO frequency change.
9176  */
9177 static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
9178                                             struct wpa_used_freq_data *freqs,
9179                                             unsigned int num)
9180 {
9181         unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
9182         unsigned int timeout;
9183         int freq;
9184         int dfs_offload;
9185
9186         wpas_p2p_go_update_common_freqs(wpa_s);
9187
9188         freq = wpa_s->current_ssid->frequency;
9189         dfs_offload = (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
9190                 ieee80211_is_dfs(freq, wpa_s->hw.modes, wpa_s->hw.num_modes);
9191         for (i = 0, invalid_freq = 0; i < num; i++) {
9192                 if (freqs[i].freq == freq) {
9193                         flags = freqs[i].flags;
9194
9195                         /* The channel is invalid, must change it */
9196                         if (!p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
9197                             !dfs_offload) {
9198                                 wpa_dbg(wpa_s, MSG_DEBUG,
9199                                         "P2P: Freq=%d MHz no longer valid for GO",
9200                                         freq);
9201                                 invalid_freq = 1;
9202                         }
9203                 } else if (freqs[i].flags == 0) {
9204                         /* Freq is not used by any other station interface */
9205                         continue;
9206                 } else if (!p2p_supported_freq(wpa_s->global->p2p,
9207                                                freqs[i].freq) && !dfs_offload) {
9208                         /* Freq is not valid for P2P use cases */
9209                         continue;
9210                 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9211                            P2P_GO_FREQ_MOVE_SCM) {
9212                         policy_move = 1;
9213                 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
9214                            P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
9215                            wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9216                         policy_move = 1;
9217                 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
9218                             P2P_GO_FREQ_MOVE_SCM_ECSA) &&
9219                            wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
9220                         if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
9221                                 policy_move = 1;
9222                         } else if ((wpa_s->drv_flags &
9223                                     WPA_DRIVER_FLAGS_AP_CSA) &&
9224                                    wpas_p2p_go_clients_support_ecsa(wpa_s)) {
9225                                 u8 chan;
9226
9227                                 /*
9228                                  * We do not support CSA between bands, so move
9229                                  * GO only within the same band.
9230                                  */
9231                                 if (wpa_s->ap_iface->current_mode->mode ==
9232                                     ieee80211_freq_to_chan(freqs[i].freq,
9233                                                            &chan))
9234                                         policy_move = 1;
9235                         }
9236                 }
9237         }
9238
9239         wpa_dbg(wpa_s, MSG_DEBUG,
9240                 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
9241                 invalid_freq, policy_move, flags);
9242
9243         /*
9244          * The channel is valid, or we are going to have a policy move, so
9245          * cancel timeout.
9246          */
9247         if (!invalid_freq || policy_move) {
9248                 wpa_dbg(wpa_s, MSG_DEBUG,
9249                         "P2P: Cancel a GO move from freq=%d MHz", freq);
9250                 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9251
9252                 if (wpas_p2p_in_progress(wpa_s)) {
9253                         wpa_dbg(wpa_s, MSG_DEBUG,
9254                                 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
9255                         eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
9256                                              wpa_s, NULL);
9257                         eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9258                                                wpas_p2p_reconsider_moving_go,
9259                                                wpa_s, NULL);
9260                         return;
9261                 }
9262         }
9263
9264         if (!invalid_freq && (!policy_move || flags != 0)) {
9265                 wpa_dbg(wpa_s, MSG_DEBUG,
9266                         "P2P: Not initiating a GO frequency change");
9267                 return;
9268         }
9269
9270         /*
9271          * Do not consider moving GO if it is in the middle of a CSA. When the
9272          * CSA is finished this flow should be retriggered.
9273          */
9274         if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9275                 wpa_dbg(wpa_s, MSG_DEBUG,
9276                         "P2P: Not initiating a GO frequency change - CSA is in progress");
9277                 return;
9278         }
9279
9280         if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9281                 timeout = P2P_GO_FREQ_CHANGE_TIME;
9282         else
9283                 timeout = 0;
9284
9285         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9286                 freq, timeout);
9287         eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9288         eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9289 }
9290
9291
9292 static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9293                                          struct wpa_used_freq_data *freqs,
9294                                          unsigned int num,
9295                                          enum wpas_p2p_channel_update_trig trig)
9296 {
9297         struct wpa_supplicant *ifs;
9298
9299         eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9300                              NULL);
9301
9302         /*
9303          * Travers all the radio interfaces, and for each GO interface, check
9304          * if there is a need to move the GO from the frequency it is using,
9305          * or in case the frequency is valid again, cancel the evacuation flow.
9306          */
9307         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9308                          radio_list) {
9309                 if (ifs->current_ssid == NULL ||
9310                     ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9311                         continue;
9312
9313                 /*
9314                  * The GO was just started or completed channel switch, no need
9315                  * to move it.
9316                  */
9317                 if (wpa_s == ifs &&
9318                     (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9319                      trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9320                         wpa_dbg(wpa_s, MSG_DEBUG,
9321                                 "P2P: GO move - schedule re-consideration");
9322                         eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9323                                                wpas_p2p_reconsider_moving_go,
9324                                                wpa_s, NULL);
9325                         continue;
9326                 }
9327
9328                 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9329         }
9330 }
9331
9332
9333 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9334 {
9335         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9336                 return;
9337
9338         wpas_p2p_update_channel_list(wpa_s,
9339                                      WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
9340 }
9341
9342
9343 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9344 {
9345         if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9346                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9347                         "the management interface is being removed");
9348                 wpas_p2p_deinit_global(wpa_s->global);
9349         }
9350 }
9351
9352
9353 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9354 {
9355         if (wpa_s->ap_iface->bss)
9356                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9357         wpas_p2p_group_deinit(wpa_s);
9358 }
9359
9360
9361 int wpas_p2p_lo_start(struct wpa_supplicant *wpa_s, unsigned int freq,
9362                       unsigned int period, unsigned int interval,
9363                       unsigned int count)
9364 {
9365         struct p2p_data *p2p = wpa_s->global->p2p;
9366         u8 *device_types;
9367         size_t dev_types_len;
9368         struct wpabuf *buf;
9369         int ret;
9370
9371         if (wpa_s->p2p_lo_started) {
9372                 wpa_dbg(wpa_s, MSG_DEBUG,
9373                         "P2P Listen offload is already started");
9374                 return 0;
9375         }
9376
9377         if (wpa_s->global->p2p == NULL ||
9378             !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) {
9379                 wpa_printf(MSG_DEBUG, "P2P: Listen offload not supported");
9380                 return -1;
9381         }
9382
9383         if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
9384                 wpa_printf(MSG_ERROR, "P2P: Input channel not supported: %u",
9385                            freq);
9386                 return -1;
9387         }
9388
9389         /* Get device type */
9390         dev_types_len = (wpa_s->conf->num_sec_device_types + 1) *
9391                 WPS_DEV_TYPE_LEN;
9392         device_types = os_malloc(dev_types_len);
9393         if (!device_types)
9394                 return -1;
9395         os_memcpy(device_types, wpa_s->conf->device_type, WPS_DEV_TYPE_LEN);
9396         os_memcpy(&device_types[WPS_DEV_TYPE_LEN], wpa_s->conf->sec_device_type,
9397                   wpa_s->conf->num_sec_device_types * WPS_DEV_TYPE_LEN);
9398
9399         /* Get Probe Response IE(s) */
9400         buf = p2p_build_probe_resp_template(p2p, freq);
9401         if (!buf) {
9402                 os_free(device_types);
9403                 return -1;
9404         }
9405
9406         ret = wpa_drv_p2p_lo_start(wpa_s, freq, period, interval, count,
9407                                    device_types, dev_types_len,
9408                                    wpabuf_mhead_u8(buf), wpabuf_len(buf));
9409         if (ret < 0)
9410                 wpa_dbg(wpa_s, MSG_DEBUG,
9411                         "P2P: Failed to start P2P listen offload");
9412
9413         os_free(device_types);
9414         wpabuf_free(buf);
9415
9416         if (ret == 0) {
9417                 wpa_s->p2p_lo_started = 1;
9418
9419                 /* Stop current P2P listen if any */
9420                 wpas_stop_listen(wpa_s);
9421         }
9422
9423         return ret;
9424 }
9425
9426
9427 int wpas_p2p_lo_stop(struct wpa_supplicant *wpa_s)
9428 {
9429         int ret;
9430
9431         if (!wpa_s->p2p_lo_started)
9432                 return 0;
9433
9434         ret = wpa_drv_p2p_lo_stop(wpa_s);
9435         if (ret < 0)
9436                 wpa_dbg(wpa_s, MSG_DEBUG,
9437                         "P2P: Failed to stop P2P listen offload");
9438
9439         wpa_s->p2p_lo_started = 0;
9440         return ret;
9441 }