contrib/wpa/wpa_supplicant/hs20_supplicant.c

   1 /*
   2  * Copyright (c) 2009, Atheros Communications, Inc.
   3  * Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10 #include <sys/stat.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/gas.h"
  17 #include "common/wpa_ctrl.h"
  18 #include "rsn_supp/wpa.h"
  19 #include "wpa_supplicant_i.h"
  20 #include "driver_i.h"
  21 #include "config.h"
  22 #include "scan.h"
  23 #include "bss.h"
  24 #include "blacklist.h"
  25 #include "gas_query.h"
  26 #include "interworking.h"
  27 #include "hs20_supplicant.h"
  28 #include "base64.h"
  29
  30
  31 #define OSU_MAX_ITEMS 10
  32
  33 struct osu_lang_string {
  34         char lang[4];
  35         char text[253];
  36 };
  37
  38 struct osu_icon {
  39         u16 width;
  40         u16 height;
  41         char lang[4];
  42         char icon_type[256];
  43         char filename[256];
  44         unsigned int id;
  45         unsigned int failed:1;
  46 };
  47
  48 struct osu_provider {
  49         u8 bssid[ETH_ALEN];
  50         u8 osu_ssid[SSID_MAX_LEN];
  51         u8 osu_ssid_len;
  52         u8 osu_ssid2[SSID_MAX_LEN];
  53         u8 osu_ssid2_len;
  54         char server_uri[256];
  55         u32 osu_methods; /* bit 0 = OMA-DM, bit 1 = SOAP-XML SPP */
  56         char osu_nai[256];
  57         char osu_nai2[256];
  58         struct osu_lang_string friendly_name[OSU_MAX_ITEMS];
  59         size_t friendly_name_count;
  60         struct osu_lang_string serv_desc[OSU_MAX_ITEMS];
  61         size_t serv_desc_count;
  62         struct osu_icon icon[OSU_MAX_ITEMS];
  63         size_t icon_count;
  64 };
  65
  66
  67 void hs20_configure_frame_filters(struct wpa_supplicant *wpa_s)
  68 {
  69         struct wpa_bss *bss = wpa_s->current_bss;
  70         u8 *bssid = wpa_s->bssid;
  71         const u8 *ie;
  72         const u8 *ext_capa;
  73         u32 filter = 0;
  74
  75         if (!bss || !is_hs20_network(wpa_s, wpa_s->current_ssid, bss)) {
  76                 wpa_printf(MSG_DEBUG,
  77                            "Not configuring frame filtering - BSS " MACSTR
  78                            " is not a Hotspot 2.0 network", MAC2STR(bssid));
  79                 return;
  80         }
  81
  82         ie = wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE);
  83
  84         /* Check if DGAF disabled bit is zero (5th byte in the IE) */
  85         if (!ie || ie[1] < 5)
  86                 wpa_printf(MSG_DEBUG,
  87                            "Not configuring frame filtering - Can't extract DGAF bit");
  88         else if (!(ie[6] & HS20_DGAF_DISABLED))
  89                 filter |= WPA_DATA_FRAME_FILTER_FLAG_GTK;
  90
  91         ext_capa = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
  92         if (!ext_capa || ext_capa[1] < 2) {
  93                 wpa_printf(MSG_DEBUG,
  94                            "Not configuring frame filtering - Can't extract Proxy ARP bit");
  95                 return;
  96         }
  97
  98         if (wpa_bss_ext_capab(bss, WLAN_EXT_CAPAB_PROXY_ARP))
  99                 filter |= WPA_DATA_FRAME_FILTER_FLAG_ARP |
 100                         WPA_DATA_FRAME_FILTER_FLAG_NA;
 101
 102         wpa_drv_configure_frame_filters(wpa_s, filter);
 103 }
 104
 105
 106 void wpas_hs20_add_indication(struct wpabuf *buf, int pps_mo_id, int ap_release)
 107 {
 108         int release;
 109         u8 conf;
 110
 111         release = (HS20_VERSION >> 4) + 1;
 112         if (ap_release > 0 && release > ap_release)
 113                 release = ap_release;
 114         if (release < 2)
 115                 pps_mo_id = -1;
 116
 117         wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
 118         wpabuf_put_u8(buf, pps_mo_id >= 0 ? 7 : 5);
 119         wpabuf_put_be24(buf, OUI_WFA);
 120         wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
 121         conf = (release - 1) << 4;
 122         if (pps_mo_id >= 0)
 123                 conf |= HS20_PPS_MO_ID_PRESENT;
 124         wpabuf_put_u8(buf, conf);
 125         if (pps_mo_id >= 0)
 126                 wpabuf_put_le16(buf, pps_mo_id);
 127 }
 128
 129
 130 void wpas_hs20_add_roam_cons_sel(struct wpabuf *buf,
 131                                  const struct wpa_ssid *ssid)
 132 {
 133         if (!ssid->roaming_consortium_selection ||
 134             !ssid->roaming_consortium_selection_len)
 135                 return;
 136
 137         wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
 138         wpabuf_put_u8(buf, 4 + ssid->roaming_consortium_selection_len);
 139         wpabuf_put_be24(buf, OUI_WFA);
 140         wpabuf_put_u8(buf, HS20_ROAMING_CONS_SEL_OUI_TYPE);
 141         wpabuf_put_data(buf, ssid->roaming_consortium_selection,
 142                         ssid->roaming_consortium_selection_len);
 143 }
 144
 145
 146 int get_hs20_version(struct wpa_bss *bss)
 147 {
 148         const u8 *ie;
 149
 150         if (!bss)
 151                 return 0;
 152
 153         ie = wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE);
 154         if (!ie || ie[1] < 5)
 155                 return 0;
 156
 157         return ((ie[6] >> 4) & 0x0f) + 1;
 158 }
 159
 160
 161 int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
 162                     struct wpa_bss *bss)
 163 {
 164         if (!wpa_s->conf->hs20 || !ssid)
 165                 return 0;
 166
 167         if (ssid->parent_cred)
 168                 return 1;
 169
 170         if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
 171                 return 0;
 172
 173         /*
 174          * This may catch some non-Hotspot 2.0 cases, but it is safer to do that
 175          * than cause Hotspot 2.0 connections without indication element getting
 176          * added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
 177          */
 178
 179         if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
 180                 return 0;
 181         if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
 182                 return 0;
 183         if (ssid->proto != WPA_PROTO_RSN)
 184                 return 0;
 185
 186         return 1;
 187 }
 188
 189
 190 int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
 191 {
 192         struct wpa_cred *cred;
 193
 194         if (ssid == NULL)
 195                 return 0;
 196
 197         if (ssid->update_identifier)
 198                 return ssid->update_identifier;
 199
 200         if (ssid->parent_cred == NULL)
 201                 return 0;
 202
 203         for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
 204                 if (ssid->parent_cred == cred)
 205                         return cred->update_identifier;
 206         }
 207
 208         return 0;
 209 }
 210
 211
 212 void hs20_put_anqp_req(u32 stypes, const u8 *payload, size_t payload_len,
 213                        struct wpabuf *buf)
 214 {
 215         u8 *len_pos;
 216
 217         if (buf == NULL)
 218                 return;
 219
 220         len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
 221         wpabuf_put_be24(buf, OUI_WFA);
 222         wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
 223         if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
 224                 wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
 225                 wpabuf_put_u8(buf, 0); /* Reserved */
 226                 if (payload)
 227                         wpabuf_put_data(buf, payload, payload_len);
 228         } else if (stypes == BIT(HS20_STYPE_ICON_REQUEST)) {
 229                 wpabuf_put_u8(buf, HS20_STYPE_ICON_REQUEST);
 230                 wpabuf_put_u8(buf, 0); /* Reserved */
 231                 if (payload)
 232                         wpabuf_put_data(buf, payload, payload_len);
 233         } else {
 234                 u8 i;
 235                 wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
 236                 wpabuf_put_u8(buf, 0); /* Reserved */
 237                 for (i = 0; i < 32; i++) {
 238                         if (stypes & BIT(i))
 239                                 wpabuf_put_u8(buf, i);
 240                 }
 241         }
 242         gas_anqp_set_element_len(buf, len_pos);
 243
 244         gas_anqp_set_len(buf);
 245 }
 246
 247
 248 static struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
 249                                            size_t payload_len)
 250 {
 251         struct wpabuf *buf;
 252
 253         buf = gas_anqp_build_initial_req(0, 100 + payload_len);
 254         if (buf == NULL)
 255                 return NULL;
 256
 257         hs20_put_anqp_req(stypes, payload, payload_len, buf);
 258
 259         return buf;
 260 }
 261
 262
 263 int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
 264                        const u8 *payload, size_t payload_len, int inmem)
 265 {
 266         struct wpabuf *buf;
 267         int ret = 0;
 268         int freq;
 269         struct wpa_bss *bss;
 270         int res;
 271         struct icon_entry *icon_entry;
 272
 273         bss = wpa_bss_get_bssid(wpa_s, dst);
 274         if (!bss) {
 275                 wpa_printf(MSG_WARNING,
 276                            "ANQP: Cannot send query to unknown BSS "
 277                            MACSTR, MAC2STR(dst));
 278                 return -1;
 279         }
 280
 281         wpa_bss_anqp_unshare_alloc(bss);
 282         freq = bss->freq;
 283
 284         wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
 285                    "subtypes 0x%x", MAC2STR(dst), stypes);
 286
 287         buf = hs20_build_anqp_req(stypes, payload, payload_len);
 288         if (buf == NULL)
 289                 return -1;
 290
 291         res = gas_query_req(wpa_s->gas, dst, freq, 0, buf, anqp_resp_cb, wpa_s);
 292         if (res < 0) {
 293                 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
 294                 wpabuf_free(buf);
 295                 return -1;
 296         } else
 297                 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
 298                            "%u", res);
 299
 300         if (inmem) {
 301                 icon_entry = os_zalloc(sizeof(struct icon_entry));
 302                 if (!icon_entry)
 303                         return -1;
 304                 os_memcpy(icon_entry->bssid, dst, ETH_ALEN);
 305                 icon_entry->file_name = os_malloc(payload_len + 1);
 306                 if (!icon_entry->file_name) {
 307                         os_free(icon_entry);
 308                         return -1;
 309                 }
 310                 os_memcpy(icon_entry->file_name, payload, payload_len);
 311                 icon_entry->file_name[payload_len] = '\0';
 312                 icon_entry->dialog_token = res;
 313
 314                 dl_list_add(&wpa_s->icon_head, &icon_entry->list);
 315         }
 316
 317         return ret;
 318 }
 319
 320
 321 static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
 322                                           const u8 *bssid,
 323                                           const char *file_name)
 324 {
 325         struct icon_entry *icon;
 326
 327         dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
 328                 if (os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0 &&
 329                     os_strcmp(icon->file_name, file_name) == 0 && icon->image)
 330                         return icon;
 331         }
 332
 333         return NULL;
 334 }
 335
 336
 337 int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
 338                   const char *file_name, size_t offset, size_t size,
 339                   char *reply, size_t buf_len)
 340 {
 341         struct icon_entry *icon;
 342         size_t out_size;
 343         unsigned char *b64;
 344         size_t b64_size;
 345         int reply_size;
 346
 347         wpa_printf(MSG_DEBUG, "HS20: Get icon " MACSTR " %s @ %u +%u (%u)",
 348                    MAC2STR(bssid), file_name, (unsigned int) offset,
 349                    (unsigned int) size, (unsigned int) buf_len);
 350
 351         icon = hs20_find_icon(wpa_s, bssid, file_name);
 352         if (!icon || !icon->image || offset >= icon->image_len)
 353                 return -1;
 354         if (size > icon->image_len - offset)
 355                 size = icon->image_len - offset;
 356         out_size = buf_len - 3 /* max base64 padding */;
 357         if (size * 4 > out_size * 3)
 358                 size = out_size * 3 / 4;
 359         if (size == 0)
 360                 return -1;
 361
 362         b64 = base64_encode(&icon->image[offset], size, &b64_size);
 363         if (b64 && buf_len >= b64_size) {
 364                 os_memcpy(reply, b64, b64_size);
 365                 reply_size = b64_size;
 366         } else {
 367                 reply_size = -1;
 368         }
 369         os_free(b64);
 370         return reply_size;
 371 }
 372
 373
 374 static void hs20_free_icon_entry(struct icon_entry *icon)
 375 {
 376         wpa_printf(MSG_DEBUG, "HS20: Free stored icon from " MACSTR
 377                    " dialog_token=%u file_name=%s image_len=%u",
 378                    MAC2STR(icon->bssid), icon->dialog_token,
 379                    icon->file_name ? icon->file_name : "N/A",
 380                    (unsigned int) icon->image_len);
 381         os_free(icon->file_name);
 382         os_free(icon->image);
 383         os_free(icon);
 384 }
 385
 386
 387 int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
 388                   const char *file_name)
 389 {
 390         struct icon_entry *icon, *tmp;
 391         int count = 0;
 392
 393         if (!bssid)
 394                 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons");
 395         else if (!file_name)
 396                 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons for "
 397                            MACSTR, MAC2STR(bssid));
 398         else
 399                 wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
 400                            MACSTR " file name %s", MAC2STR(bssid), file_name);
 401
 402         dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
 403                               list) {
 404                 if ((!bssid || os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0) &&
 405                     (!file_name ||
 406                      os_strcmp(icon->file_name, file_name) == 0)) {
 407                         dl_list_del(&icon->list);
 408                         hs20_free_icon_entry(icon);
 409                         count++;
 410                 }
 411         }
 412         return count == 0 ? -1 : 0;
 413 }
 414
 415
 416 static void hs20_set_osu_access_permission(const char *osu_dir,
 417                                            const char *fname)
 418 {
 419         struct stat statbuf;
 420
 421         /* Get OSU directory information */
 422         if (stat(osu_dir, &statbuf) < 0) {
 423                 wpa_printf(MSG_WARNING, "Cannot stat the OSU directory %s",
 424                            osu_dir);
 425                 return;
 426         }
 427
 428         if (chmod(fname, statbuf.st_mode) < 0) {
 429                 wpa_printf(MSG_WARNING,
 430                            "Cannot change the permissions for %s", fname);
 431                 return;
 432         }
 433
 434         if (lchown(fname, statbuf.st_uid, statbuf.st_gid) < 0) {
 435                 wpa_printf(MSG_WARNING, "Cannot change the ownership for %s",
 436                            fname);
 437         }
 438 }
 439
 440
 441 static void hs20_remove_duplicate_icons(struct wpa_supplicant *wpa_s,
 442                                         struct icon_entry *new_icon)
 443 {
 444         struct icon_entry *icon, *tmp;
 445
 446         dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
 447                               list) {
 448                 if (icon == new_icon)
 449                         continue;
 450                 if (os_memcmp(icon->bssid, new_icon->bssid, ETH_ALEN) == 0 &&
 451                     os_strcmp(icon->file_name, new_icon->file_name) == 0) {
 452                         dl_list_del(&icon->list);
 453                         hs20_free_icon_entry(icon);
 454                 }
 455         }
 456 }
 457
 458
 459 static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
 460                                          const u8 *sa, const u8 *pos,
 461                                          size_t slen, u8 dialog_token)
 462 {
 463         char fname[256];
 464         int png;
 465         FILE *f;
 466         u16 data_len;
 467         struct icon_entry *icon;
 468
 469         dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
 470                 if (icon->dialog_token == dialog_token && !icon->image &&
 471                     os_memcmp(icon->bssid, sa, ETH_ALEN) == 0) {
 472                         icon->image = os_memdup(pos, slen);
 473                         if (!icon->image)
 474                                 return -1;
 475                         icon->image_len = slen;
 476                         hs20_remove_duplicate_icons(wpa_s, icon);
 477                         wpa_msg(wpa_s, MSG_INFO,
 478                                 RX_HS20_ICON MACSTR " %s %u",
 479                                 MAC2STR(sa), icon->file_name,
 480                                 (unsigned int) icon->image_len);
 481                         return 0;
 482                 }
 483         }
 484
 485         wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR " Icon Binary File",
 486                 MAC2STR(sa));
 487
 488         if (slen < 4) {
 489                 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
 490                         "value from " MACSTR, MAC2STR(sa));
 491                 return -1;
 492         }
 493
 494         wpa_printf(MSG_DEBUG, "HS 2.0: Download Status Code %u", *pos);
 495         if (*pos != 0)
 496                 return -1;
 497         pos++;
 498         slen--;
 499
 500         if ((size_t) 1 + pos[0] > slen) {
 501                 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
 502                         "value from " MACSTR, MAC2STR(sa));
 503                 return -1;
 504         }
 505         wpa_hexdump_ascii(MSG_DEBUG, "Icon Type", pos + 1, pos[0]);
 506         png = os_strncasecmp((char *) pos + 1, "image/png", 9) == 0;
 507         slen -= 1 + pos[0];
 508         pos += 1 + pos[0];
 509
 510         if (slen < 2) {
 511                 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
 512                         "value from " MACSTR, MAC2STR(sa));
 513                 return -1;
 514         }
 515         data_len = WPA_GET_LE16(pos);
 516         pos += 2;
 517         slen -= 2;
 518
 519         if (data_len > slen) {
 520                 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
 521                         "value from " MACSTR, MAC2STR(sa));
 522                 return -1;
 523         }
 524
 525         wpa_printf(MSG_DEBUG, "Icon Binary Data: %u bytes", data_len);
 526         if (wpa_s->conf->osu_dir == NULL)
 527                 return -1;
 528
 529         wpa_s->osu_icon_id++;
 530         if (wpa_s->osu_icon_id == 0)
 531                 wpa_s->osu_icon_id++;
 532         snprintf(fname, sizeof(fname), "%s/osu-icon-%u.%s",
 533                  wpa_s->conf->osu_dir, wpa_s->osu_icon_id,
 534                  png ? "png" : "icon");
 535         f = fopen(fname, "wb");
 536         if (f == NULL)
 537                 return -1;
 538
 539         hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
 540
 541         if (fwrite(pos, slen, 1, f) != 1) {
 542                 fclose(f);
 543                 unlink(fname);
 544                 return -1;
 545         }
 546         fclose(f);
 547
 548         wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP_ICON "%s", fname);
 549         return 0;
 550 }
 551
 552
 553 static void hs20_continue_icon_fetch(void *eloop_ctx, void *sock_ctx)
 554 {
 555         struct wpa_supplicant *wpa_s = eloop_ctx;
 556         if (wpa_s->fetch_osu_icon_in_progress)
 557                 hs20_next_osu_icon(wpa_s);
 558 }
 559
 560
 561 static void hs20_osu_icon_fetch_result(struct wpa_supplicant *wpa_s, int res)
 562 {
 563         size_t i, j;
 564         struct os_reltime now, tmp;
 565         int dur;
 566
 567         os_get_reltime(&now);
 568         os_reltime_sub(&now, &wpa_s->osu_icon_fetch_start, &tmp);
 569         dur = tmp.sec * 1000 + tmp.usec / 1000;
 570         wpa_printf(MSG_DEBUG, "HS 2.0: Icon fetch dur=%d ms res=%d",
 571                    dur, res);
 572
 573         for (i = 0; i < wpa_s->osu_prov_count; i++) {
 574                 struct osu_provider *osu = &wpa_s->osu_prov[i];
 575                 for (j = 0; j < osu->icon_count; j++) {
 576                         struct osu_icon *icon = &osu->icon[j];
 577                         if (icon->id || icon->failed)
 578                                 continue;
 579                         if (res < 0)
 580                                 icon->failed = 1;
 581                         else
 582                                 icon->id = wpa_s->osu_icon_id;
 583                         return;
 584                 }
 585         }
 586 }
 587
 588
 589 void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
 590                                   struct wpa_bss *bss, const u8 *sa,
 591                                   const u8 *data, size_t slen, u8 dialog_token)
 592 {
 593         const u8 *pos = data;
 594         u8 subtype;
 595         struct wpa_bss_anqp *anqp = NULL;
 596         int ret;
 597
 598         if (slen < 2)
 599                 return;
 600
 601         if (bss)
 602                 anqp = bss->anqp;
 603
 604         subtype = *pos++;
 605         slen--;
 606
 607         pos++; /* Reserved */
 608         slen--;
 609
 610         switch (subtype) {
 611         case HS20_STYPE_CAPABILITY_LIST:
 612                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 613                         " HS Capability List", MAC2STR(sa));
 614                 wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
 615                 if (anqp) {
 616                         wpabuf_free(anqp->hs20_capability_list);
 617                         anqp->hs20_capability_list =
 618                                 wpabuf_alloc_copy(pos, slen);
 619                 }
 620                 break;
 621         case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
 622                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 623                         " Operator Friendly Name", MAC2STR(sa));
 624                 wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
 625                 if (anqp) {
 626                         wpabuf_free(anqp->hs20_operator_friendly_name);
 627                         anqp->hs20_operator_friendly_name =
 628                                 wpabuf_alloc_copy(pos, slen);
 629                 }
 630                 break;
 631         case HS20_STYPE_WAN_METRICS:
 632                 wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
 633                 if (slen < 13) {
 634                         wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
 635                                 "Metrics value from " MACSTR, MAC2STR(sa));
 636                         break;
 637                 }
 638                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 639                         " WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
 640                         pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
 641                         pos[9], pos[10], WPA_GET_LE16(pos + 11));
 642                 if (anqp) {
 643                         wpabuf_free(anqp->hs20_wan_metrics);
 644                         anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
 645                 }
 646                 break;
 647         case HS20_STYPE_CONNECTION_CAPABILITY:
 648                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 649                         " Connection Capability", MAC2STR(sa));
 650                 wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
 651                 if (anqp) {
 652                         wpabuf_free(anqp->hs20_connection_capability);
 653                         anqp->hs20_connection_capability =
 654                                 wpabuf_alloc_copy(pos, slen);
 655                 }
 656                 break;
 657         case HS20_STYPE_OPERATING_CLASS:
 658                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 659                         " Operating Class", MAC2STR(sa));
 660                 wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
 661                 if (anqp) {
 662                         wpabuf_free(anqp->hs20_operating_class);
 663                         anqp->hs20_operating_class =
 664                                 wpabuf_alloc_copy(pos, slen);
 665                 }
 666                 break;
 667         case HS20_STYPE_OSU_PROVIDERS_LIST:
 668                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 669                         " OSU Providers list", MAC2STR(sa));
 670                 wpa_s->num_prov_found++;
 671                 if (anqp) {
 672                         wpabuf_free(anqp->hs20_osu_providers_list);
 673                         anqp->hs20_osu_providers_list =
 674                                 wpabuf_alloc_copy(pos, slen);
 675                 }
 676                 break;
 677         case HS20_STYPE_ICON_BINARY_FILE:
 678                 ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen,
 679                                                     dialog_token);
 680                 if (wpa_s->fetch_osu_icon_in_progress) {
 681                         hs20_osu_icon_fetch_result(wpa_s, ret);
 682                         eloop_cancel_timeout(hs20_continue_icon_fetch,
 683                                              wpa_s, NULL);
 684                         eloop_register_timeout(0, 0, hs20_continue_icon_fetch,
 685                                                wpa_s, NULL);
 686                 }
 687                 break;
 688         case HS20_STYPE_OPERATOR_ICON_METADATA:
 689                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 690                         " Operator Icon Metadata", MAC2STR(sa));
 691                 wpa_hexdump(MSG_DEBUG, "Operator Icon Metadata", pos, slen);
 692                 if (anqp) {
 693                         wpabuf_free(anqp->hs20_operator_icon_metadata);
 694                         anqp->hs20_operator_icon_metadata =
 695                                 wpabuf_alloc_copy(pos, slen);
 696                 }
 697                 break;
 698         case HS20_STYPE_OSU_PROVIDERS_NAI_LIST:
 699                 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
 700                         " OSU Providers NAI List", MAC2STR(sa));
 701                 if (anqp) {
 702                         wpabuf_free(anqp->hs20_osu_providers_nai_list);
 703                         anqp->hs20_osu_providers_nai_list =
 704                                 wpabuf_alloc_copy(pos, slen);
 705                 }
 706                 break;
 707         default:
 708                 wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);
 709                 break;
 710         }
 711 }
 712
 713
 714 void hs20_notify_parse_done(struct wpa_supplicant *wpa_s)
 715 {
 716         if (!wpa_s->fetch_osu_icon_in_progress)
 717                 return;
 718         if (eloop_is_timeout_registered(hs20_continue_icon_fetch, wpa_s, NULL))
 719                 return;
 720         /*
 721          * We are going through icon fetch, but no icon response was received.
 722          * Assume this means the current AP could not provide an answer to avoid
 723          * getting stuck in fetch iteration.
 724          */
 725         hs20_icon_fetch_failed(wpa_s);
 726 }
 727
 728
 729 static void hs20_free_osu_prov_entry(struct osu_provider *prov)
 730 {
 731 }
 732
 733
 734 void hs20_free_osu_prov(struct wpa_supplicant *wpa_s)
 735 {
 736         size_t i;
 737         for (i = 0; i < wpa_s->osu_prov_count; i++)
 738                 hs20_free_osu_prov_entry(&wpa_s->osu_prov[i]);
 739         os_free(wpa_s->osu_prov);
 740         wpa_s->osu_prov = NULL;
 741         wpa_s->osu_prov_count = 0;
 742 }
 743
 744
 745 static void hs20_osu_fetch_done(struct wpa_supplicant *wpa_s)
 746 {
 747         char fname[256];
 748         FILE *f;
 749         size_t i, j;
 750
 751         wpa_s->fetch_osu_info = 0;
 752         wpa_s->fetch_osu_icon_in_progress = 0;
 753
 754         if (wpa_s->conf->osu_dir == NULL) {
 755                 hs20_free_osu_prov(wpa_s);
 756                 wpa_s->fetch_anqp_in_progress = 0;
 757                 return;
 758         }
 759
 760         snprintf(fname, sizeof(fname), "%s/osu-providers.txt",
 761                  wpa_s->conf->osu_dir);
 762         f = fopen(fname, "w");
 763         if (f == NULL) {
 764                 wpa_msg(wpa_s, MSG_INFO,
 765                         "Could not write OSU provider information");
 766                 hs20_free_osu_prov(wpa_s);
 767                 wpa_s->fetch_anqp_in_progress = 0;
 768                 return;
 769         }
 770
 771         hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
 772
 773         for (i = 0; i < wpa_s->osu_prov_count; i++) {
 774                 struct osu_provider *osu = &wpa_s->osu_prov[i];
 775                 if (i > 0)
 776                         fprintf(f, "\n");
 777                 fprintf(f, "OSU-PROVIDER " MACSTR "\n"
 778                         "uri=%s\n"
 779                         "methods=%08x\n",
 780                         MAC2STR(osu->bssid), osu->server_uri, osu->osu_methods);
 781                 if (osu->osu_ssid_len) {
 782                         fprintf(f, "osu_ssid=%s\n",
 783                                 wpa_ssid_txt(osu->osu_ssid,
 784                                              osu->osu_ssid_len));
 785                 }
 786                 if (osu->osu_ssid2_len) {
 787                         fprintf(f, "osu_ssid2=%s\n",
 788                                 wpa_ssid_txt(osu->osu_ssid2,
 789                                              osu->osu_ssid2_len));
 790                 }
 791                 if (osu->osu_nai[0])
 792                         fprintf(f, "osu_nai=%s\n", osu->osu_nai);
 793                 if (osu->osu_nai2[0])
 794                         fprintf(f, "osu_nai2=%s\n", osu->osu_nai2);
 795                 for (j = 0; j < osu->friendly_name_count; j++) {
 796                         fprintf(f, "friendly_name=%s:%s\n",
 797                                 osu->friendly_name[j].lang,
 798                                 osu->friendly_name[j].text);
 799                 }
 800                 for (j = 0; j < osu->serv_desc_count; j++) {
 801                         fprintf(f, "desc=%s:%s\n",
 802                                 osu->serv_desc[j].lang,
 803                                 osu->serv_desc[j].text);
 804                 }
 805                 for (j = 0; j < osu->icon_count; j++) {
 806                         struct osu_icon *icon = &osu->icon[j];
 807                         if (icon->failed)
 808                                 continue; /* could not fetch icon */
 809                         fprintf(f, "icon=%u:%u:%u:%s:%s:%s\n",
 810                                 icon->id, icon->width, icon->height, icon->lang,
 811                                 icon->icon_type, icon->filename);
 812                 }
 813         }
 814         fclose(f);
 815         hs20_free_osu_prov(wpa_s);
 816
 817         wpa_msg(wpa_s, MSG_INFO, "OSU provider fetch completed");
 818         wpa_s->fetch_anqp_in_progress = 0;
 819 }
 820
 821
 822 void hs20_next_osu_icon(struct wpa_supplicant *wpa_s)
 823 {
 824         size_t i, j;
 825
 826         wpa_printf(MSG_DEBUG, "HS 2.0: Ready to fetch next icon");
 827
 828         for (i = 0; i < wpa_s->osu_prov_count; i++) {
 829                 struct osu_provider *osu = &wpa_s->osu_prov[i];
 830                 for (j = 0; j < osu->icon_count; j++) {
 831                         struct osu_icon *icon = &osu->icon[j];
 832                         if (icon->id || icon->failed)
 833                                 continue;
 834
 835                         wpa_printf(MSG_DEBUG, "HS 2.0: Try to fetch icon '%s' "
 836                                    "from " MACSTR, icon->filename,
 837                                    MAC2STR(osu->bssid));
 838                         os_get_reltime(&wpa_s->osu_icon_fetch_start);
 839                         if (hs20_anqp_send_req(wpa_s, osu->bssid,
 840                                                BIT(HS20_STYPE_ICON_REQUEST),
 841                                                (u8 *) icon->filename,
 842                                                os_strlen(icon->filename),
 843                                                0) < 0) {
 844                                 icon->failed = 1;
 845                                 continue;
 846                         }
 847                         return;
 848                 }
 849         }
 850
 851         wpa_printf(MSG_DEBUG, "HS 2.0: No more icons to fetch");
 852         hs20_osu_fetch_done(wpa_s);
 853 }
 854
 855
 856 static void hs20_osu_add_prov(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 857                               const u8 *osu_ssid, u8 osu_ssid_len,
 858                               const u8 *osu_ssid2, u8 osu_ssid2_len,
 859                               const u8 *pos, size_t len)
 860 {
 861         struct osu_provider *prov;
 862         const u8 *end = pos + len;
 863         u16 len2;
 864         const u8 *pos2;
 865         u8 uri_len, osu_method_len, osu_nai_len;
 866
 867         wpa_hexdump(MSG_DEBUG, "HS 2.0: Parsing OSU Provider", pos, len);
 868         prov = os_realloc_array(wpa_s->osu_prov,
 869                                 wpa_s->osu_prov_count + 1,
 870                                 sizeof(*prov));
 871         if (prov == NULL)
 872                 return;
 873         wpa_s->osu_prov = prov;
 874         prov = &prov[wpa_s->osu_prov_count];
 875         os_memset(prov, 0, sizeof(*prov));
 876
 877         os_memcpy(prov->bssid, bss->bssid, ETH_ALEN);
 878         os_memcpy(prov->osu_ssid, osu_ssid, osu_ssid_len);
 879         prov->osu_ssid_len = osu_ssid_len;
 880         if (osu_ssid2)
 881                 os_memcpy(prov->osu_ssid2, osu_ssid2, osu_ssid2_len);
 882         prov->osu_ssid2_len = osu_ssid2_len;
 883
 884         /* OSU Friendly Name Length */
 885         if (end - pos < 2) {
 886                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
 887                            "Friendly Name Length");
 888                 return;
 889         }
 890         len2 = WPA_GET_LE16(pos);
 891         pos += 2;
 892         if (len2 > end - pos) {
 893                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
 894                            "Friendly Name Duples");
 895                 return;
 896         }
 897         pos2 = pos;
 898         pos += len2;
 899
 900         /* OSU Friendly Name Duples */
 901         while (pos - pos2 >= 4 && prov->friendly_name_count < OSU_MAX_ITEMS) {
 902                 struct osu_lang_string *f;
 903                 if (1 + pos2[0] > pos - pos2 || pos2[0] < 3) {
 904                         wpa_printf(MSG_DEBUG, "Invalid OSU Friendly Name");
 905                         break;
 906                 }
 907                 f = &prov->friendly_name[prov->friendly_name_count++];
 908                 os_memcpy(f->lang, pos2 + 1, 3);
 909                 os_memcpy(f->text, pos2 + 1 + 3, pos2[0] - 3);
 910                 pos2 += 1 + pos2[0];
 911         }
 912
 913         /* OSU Server URI */
 914         if (end - pos < 1) {
 915                 wpa_printf(MSG_DEBUG,
 916                            "HS 2.0: Not enough room for OSU Server URI length");
 917                 return;
 918         }
 919         uri_len = *pos++;
 920         if (uri_len > end - pos) {
 921                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Server "
 922                            "URI");
 923                 return;
 924         }
 925         os_memcpy(prov->server_uri, pos, uri_len);
 926         pos += uri_len;
 927
 928         /* OSU Method list */
 929         if (end - pos < 1) {
 930                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
 931                            "list length");
 932                 return;
 933         }
 934         osu_method_len = pos[0];
 935         if (osu_method_len > end - pos - 1) {
 936                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
 937                            "list");
 938                 return;
 939         }
 940         pos2 = pos + 1;
 941         pos += 1 + osu_method_len;
 942         while (pos2 < pos) {
 943                 if (*pos2 < 32)
 944                         prov->osu_methods |= BIT(*pos2);
 945                 pos2++;
 946         }
 947
 948         /* Icons Available Length */
 949         if (end - pos < 2) {
 950                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
 951                            "Available Length");
 952                 return;
 953         }
 954         len2 = WPA_GET_LE16(pos);
 955         pos += 2;
 956         if (len2 > end - pos) {
 957                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
 958                            "Available");
 959                 return;
 960         }
 961         pos2 = pos;
 962         pos += len2;
 963
 964         /* Icons Available */
 965         while (pos2 < pos) {
 966                 struct osu_icon *icon = &prov->icon[prov->icon_count];
 967                 u8 flen;
 968
 969                 if (2 + 2 + 3 + 1 + 1 > pos - pos2) {
 970                         wpa_printf(MSG_DEBUG, "HS 2.0: Invalid Icon Metadata");
 971                         break;
 972                 }
 973
 974                 icon->width = WPA_GET_LE16(pos2);
 975                 pos2 += 2;
 976                 icon->height = WPA_GET_LE16(pos2);
 977                 pos2 += 2;
 978                 os_memcpy(icon->lang, pos2, 3);
 979                 pos2 += 3;
 980
 981                 flen = *pos2++;
 982                 if (flen > pos - pos2) {
 983                         wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon Type");
 984                         break;
 985                 }
 986                 os_memcpy(icon->icon_type, pos2, flen);
 987                 pos2 += flen;
 988
 989                 if (pos - pos2 < 1) {
 990                         wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
 991                                    "Filename length");
 992                         break;
 993                 }
 994                 flen = *pos2++;
 995                 if (flen > pos - pos2) {
 996                         wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
 997                                    "Filename");
 998                         break;
 999                 }
1000                 os_memcpy(icon->filename, pos2, flen);
1001                 pos2 += flen;
1002
1003                 prov->icon_count++;
1004         }
1005
1006         /* OSU_NAI */
1007         if (end - pos < 1) {
1008                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
1009                 return;
1010         }
1011         osu_nai_len = *pos++;
1012         if (osu_nai_len > end - pos) {
1013                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
1014                 return;
1015         }
1016         os_memcpy(prov->osu_nai, pos, osu_nai_len);
1017         pos += osu_nai_len;
1018
1019         /* OSU Service Description Length */
1020         if (end - pos < 2) {
1021                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
1022                            "Service Description Length");
1023                 return;
1024         }
1025         len2 = WPA_GET_LE16(pos);
1026         pos += 2;
1027         if (len2 > end - pos) {
1028                 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
1029                            "Service Description Duples");
1030                 return;
1031         }
1032         pos2 = pos;
1033         pos += len2;
1034
1035         /* OSU Service Description Duples */
1036         while (pos - pos2 >= 4 && prov->serv_desc_count < OSU_MAX_ITEMS) {
1037                 struct osu_lang_string *f;
1038                 u8 descr_len;
1039
1040                 descr_len = *pos2++;
1041                 if (descr_len > pos - pos2 || descr_len < 3) {
1042                         wpa_printf(MSG_DEBUG, "Invalid OSU Service "
1043                                    "Description");
1044                         break;
1045                 }
1046                 f = &prov->serv_desc[prov->serv_desc_count++];
1047                 os_memcpy(f->lang, pos2, 3);
1048                 os_memcpy(f->text, pos2 + 3, descr_len - 3);
1049                 pos2 += descr_len;
1050         }
1051
1052         wpa_printf(MSG_DEBUG, "HS 2.0: Added OSU Provider through " MACSTR,
1053                    MAC2STR(bss->bssid));
1054         wpa_s->osu_prov_count++;
1055 }
1056
1057
1058 void hs20_osu_icon_fetch(struct wpa_supplicant *wpa_s)
1059 {
1060         struct wpa_bss *bss;
1061         struct wpabuf *prov_anqp;
1062         const u8 *pos, *end;
1063         u16 len;
1064         const u8 *osu_ssid, *osu_ssid2;
1065         u8 osu_ssid_len, osu_ssid2_len;
1066         u8 num_providers;
1067
1068         hs20_free_osu_prov(wpa_s);
1069
1070         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1071                 struct wpa_ie_data data;
1072                 const u8 *ie;
1073
1074                 if (bss->anqp == NULL)
1075                         continue;
1076                 prov_anqp = bss->anqp->hs20_osu_providers_list;
1077                 if (prov_anqp == NULL)
1078                         continue;
1079                 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1080                 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &data) == 0 &&
1081                     (data.key_mgmt & WPA_KEY_MGMT_OSEN)) {
1082                         osu_ssid2 = bss->ssid;
1083                         osu_ssid2_len = bss->ssid_len;
1084                 } else {
1085                         osu_ssid2 = NULL;
1086                         osu_ssid2_len = 0;
1087                 }
1088                 wpa_printf(MSG_DEBUG, "HS 2.0: Parsing OSU Providers list from "
1089                            MACSTR, MAC2STR(bss->bssid));
1090                 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers list",
1091                                 prov_anqp);
1092                 pos = wpabuf_head(prov_anqp);
1093                 end = pos + wpabuf_len(prov_anqp);
1094
1095                 /* OSU SSID */
1096                 if (end - pos < 1)
1097                         continue;
1098                 if (1 + pos[0] > end - pos) {
1099                         wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1100                                    "OSU SSID");
1101                         continue;
1102                 }
1103                 osu_ssid_len = *pos++;
1104                 if (osu_ssid_len > SSID_MAX_LEN) {
1105                         wpa_printf(MSG_DEBUG, "HS 2.0: Invalid OSU SSID "
1106                                    "Length %u", osu_ssid_len);
1107                         continue;
1108                 }
1109                 osu_ssid = pos;
1110                 pos += osu_ssid_len;
1111
1112                 if (end - pos < 1) {
1113                         wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1114                                    "Number of OSU Providers");
1115                         continue;
1116                 }
1117                 num_providers = *pos++;
1118                 wpa_printf(MSG_DEBUG, "HS 2.0: Number of OSU Providers: %u",
1119                            num_providers);
1120
1121                 /* OSU Providers */
1122                 while (end - pos > 2 && num_providers > 0) {
1123                         num_providers--;
1124                         len = WPA_GET_LE16(pos);
1125                         pos += 2;
1126                         if (len > (unsigned int) (end - pos))
1127                                 break;
1128                         hs20_osu_add_prov(wpa_s, bss, osu_ssid,
1129                                           osu_ssid_len, osu_ssid2,
1130                                           osu_ssid2_len, pos, len);
1131                         pos += len;
1132                 }
1133
1134                 if (pos != end) {
1135                         wpa_printf(MSG_DEBUG, "HS 2.0: Ignored %d bytes of "
1136                                    "extra data after OSU Providers",
1137                                    (int) (end - pos));
1138                 }
1139
1140                 prov_anqp = bss->anqp->hs20_osu_providers_nai_list;
1141                 if (!prov_anqp)
1142                         continue;
1143                 wpa_printf(MSG_DEBUG,
1144                            "HS 2.0: Parsing OSU Providers NAI List from "
1145                            MACSTR, MAC2STR(bss->bssid));
1146                 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers NAI List",
1147                                 prov_anqp);
1148                 pos = wpabuf_head(prov_anqp);
1149                 end = pos + wpabuf_len(prov_anqp);
1150                 num_providers = 0;
1151                 while (end - pos > 0) {
1152                         len = *pos++;
1153                         if (end - pos < len) {
1154                                 wpa_printf(MSG_DEBUG,
1155                                            "HS 2.0: Not enough room for OSU_NAI");
1156                                 break;
1157                         }
1158                         if (num_providers >= wpa_s->osu_prov_count) {
1159                                 wpa_printf(MSG_DEBUG,
1160                                            "HS 2.0: Ignore unexpected OSU Provider NAI List entries");
1161                                 break;
1162                         }
1163                         os_memcpy(wpa_s->osu_prov[num_providers].osu_nai2,
1164                                   pos, len);
1165                         pos += len;
1166                         num_providers++;
1167                 }
1168         }
1169
1170         wpa_s->fetch_osu_icon_in_progress = 1;
1171         hs20_next_osu_icon(wpa_s);
1172 }
1173
1174
1175 static void hs20_osu_scan_res_handler(struct wpa_supplicant *wpa_s,
1176                                       struct wpa_scan_results *scan_res)
1177 {
1178         wpa_printf(MSG_DEBUG, "OSU provisioning fetch scan completed");
1179         if (!wpa_s->fetch_osu_waiting_scan) {
1180                 wpa_printf(MSG_DEBUG, "OSU fetch have been canceled");
1181                 return;
1182         }
1183         wpa_s->network_select = 0;
1184         wpa_s->fetch_all_anqp = 1;
1185         wpa_s->fetch_osu_info = 1;
1186         wpa_s->fetch_osu_icon_in_progress = 0;
1187
1188         interworking_start_fetch_anqp(wpa_s);
1189 }
1190
1191
1192 int hs20_fetch_osu(struct wpa_supplicant *wpa_s, int skip_scan)
1193 {
1194         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1195                 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1196                            "interface disabled");
1197                 return -1;
1198         }
1199
1200         if (wpa_s->scanning) {
1201                 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1202                            "scanning");
1203                 return -1;
1204         }
1205
1206         if (wpa_s->conf->osu_dir == NULL) {
1207                 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1208                            "osu_dir not configured");
1209                 return -1;
1210         }
1211
1212         if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) {
1213                 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1214                            "fetch in progress (%d, %d)",
1215                            wpa_s->fetch_anqp_in_progress,
1216                            wpa_s->network_select);
1217                 return -1;
1218         }
1219
1220         wpa_msg(wpa_s, MSG_INFO, "Starting OSU provisioning information fetch");
1221         wpa_s->num_osu_scans = 0;
1222         wpa_s->num_prov_found = 0;
1223         if (skip_scan) {
1224                 wpa_s->network_select = 0;
1225                 wpa_s->fetch_all_anqp = 1;
1226                 wpa_s->fetch_osu_info = 1;
1227                 wpa_s->fetch_osu_icon_in_progress = 0;
1228
1229                 interworking_start_fetch_anqp(wpa_s);
1230         } else {
1231                 hs20_start_osu_scan(wpa_s);
1232         }
1233
1234         return 0;
1235 }
1236
1237
1238 void hs20_start_osu_scan(struct wpa_supplicant *wpa_s)
1239 {
1240         wpa_s->fetch_osu_waiting_scan = 1;
1241         wpa_s->num_osu_scans++;
1242         wpa_s->scan_req = MANUAL_SCAN_REQ;
1243         wpa_s->scan_res_handler = hs20_osu_scan_res_handler;
1244         wpa_supplicant_req_scan(wpa_s, 0, 0);
1245 }
1246
1247
1248 void hs20_cancel_fetch_osu(struct wpa_supplicant *wpa_s)
1249 {
1250         wpa_printf(MSG_DEBUG, "Cancel OSU fetch");
1251         interworking_stop_fetch_anqp(wpa_s);
1252         wpa_s->fetch_osu_waiting_scan = 0;
1253         wpa_s->network_select = 0;
1254         wpa_s->fetch_osu_info = 0;
1255         wpa_s->fetch_osu_icon_in_progress = 0;
1256 }
1257
1258
1259 void hs20_icon_fetch_failed(struct wpa_supplicant *wpa_s)
1260 {
1261         hs20_osu_icon_fetch_result(wpa_s, -1);
1262         eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1263         eloop_register_timeout(0, 0, hs20_continue_icon_fetch, wpa_s, NULL);
1264 }
1265
1266
1267 void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
1268                                       const char *url, u8 osu_method)
1269 {
1270         if (url)
1271                 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION "%u %s",
1272                         osu_method, url);
1273         else
1274                 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
1275 }
1276
1277
1278 void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
1279                                     u16 reauth_delay, const char *url)
1280 {
1281         if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1282                 wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
1283                 return;
1284         }
1285
1286         wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
1287                 code, reauth_delay, url);
1288
1289         if (code == HS20_DEAUTH_REASON_CODE_BSS) {
1290                 wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to blacklist");
1291                 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1292                 /* TODO: For now, disable full ESS since some drivers may not
1293                  * support disabling per BSS. */
1294                 if (wpa_s->current_ssid) {
1295                         struct os_reltime now;
1296                         os_get_reltime(&now);
1297                         if (now.sec + reauth_delay <=
1298                             wpa_s->current_ssid->disabled_until.sec)
1299                                 return;
1300                         wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds (BSS)",
1301                                    reauth_delay);
1302                         wpa_s->current_ssid->disabled_until.sec =
1303                                 now.sec + reauth_delay;
1304                 }
1305         }
1306
1307         if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
1308                 struct os_reltime now;
1309                 os_get_reltime(&now);
1310                 if (now.sec + reauth_delay <=
1311                     wpa_s->current_ssid->disabled_until.sec)
1312                         return;
1313                 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
1314                            reauth_delay);
1315                 wpa_s->current_ssid->disabled_until.sec =
1316                         now.sec + reauth_delay;
1317         }
1318 }
1319
1320
1321 void hs20_rx_t_c_acceptance(struct wpa_supplicant *wpa_s, const char *url)
1322 {
1323         if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1324                 wpa_printf(MSG_DEBUG,
1325                            "HS 2.0: Ignore Terms and Conditions Acceptance since PMF was not enabled");
1326                 return;
1327         }
1328
1329         wpa_msg(wpa_s, MSG_INFO, HS20_T_C_ACCEPTANCE "%s", url);
1330 }
1331
1332
1333 void hs20_init(struct wpa_supplicant *wpa_s)
1334 {
1335         dl_list_init(&wpa_s->icon_head);
1336 }
1337
1338
1339 void hs20_deinit(struct wpa_supplicant *wpa_s)
1340 {
1341         eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1342         hs20_free_osu_prov(wpa_s);
1343         if (wpa_s->icon_head.next)
1344                 hs20_del_icon(wpa_s, NULL, NULL);
1345 }