contrib/wpa/src/common/dpp.h

   1 /*
   2  * DPP functionality shared between hostapd and wpa_supplicant
   3  * Copyright (c) 2017, Qualcomm Atheros, Inc.
   4  * Copyright (c) 2018-2019, The Linux Foundation
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #ifndef DPP_H
  11 #define DPP_H
  12
  13 #ifdef CONFIG_DPP
  14 #include <openssl/x509.h>
  15
  16 #include "utils/list.h"
  17 #include "common/wpa_common.h"
  18 #include "crypto/sha256.h"
  19
  20 struct crypto_ecdh;
  21 struct hostapd_ip_addr;
  22 struct dpp_global;
  23
  24 #define DPP_HDR_LEN (4 + 2) /* OUI, OUI Type, Crypto Suite, DPP frame type */
  25 #define DPP_TCP_PORT 7871
  26
  27 enum dpp_public_action_frame_type {
  28         DPP_PA_AUTHENTICATION_REQ = 0,
  29         DPP_PA_AUTHENTICATION_RESP = 1,
  30         DPP_PA_AUTHENTICATION_CONF = 2,
  31         DPP_PA_PEER_DISCOVERY_REQ = 5,
  32         DPP_PA_PEER_DISCOVERY_RESP = 6,
  33         DPP_PA_PKEX_EXCHANGE_REQ = 7,
  34         DPP_PA_PKEX_EXCHANGE_RESP = 8,
  35         DPP_PA_PKEX_COMMIT_REVEAL_REQ = 9,
  36         DPP_PA_PKEX_COMMIT_REVEAL_RESP = 10,
  37         DPP_PA_CONFIGURATION_RESULT = 11,
  38 };
  39
  40 enum dpp_attribute_id {
  41         DPP_ATTR_STATUS = 0x1000,
  42         DPP_ATTR_I_BOOTSTRAP_KEY_HASH = 0x1001,
  43         DPP_ATTR_R_BOOTSTRAP_KEY_HASH = 0x1002,
  44         DPP_ATTR_I_PROTOCOL_KEY = 0x1003,
  45         DPP_ATTR_WRAPPED_DATA = 0x1004,
  46         DPP_ATTR_I_NONCE = 0x1005,
  47         DPP_ATTR_I_CAPABILITIES = 0x1006,
  48         DPP_ATTR_R_NONCE = 0x1007,
  49         DPP_ATTR_R_CAPABILITIES = 0x1008,
  50         DPP_ATTR_R_PROTOCOL_KEY = 0x1009,
  51         DPP_ATTR_I_AUTH_TAG = 0x100A,
  52         DPP_ATTR_R_AUTH_TAG = 0x100B,
  53         DPP_ATTR_CONFIG_OBJ = 0x100C,
  54         DPP_ATTR_CONNECTOR = 0x100D,
  55         DPP_ATTR_CONFIG_ATTR_OBJ = 0x100E,
  56         DPP_ATTR_BOOTSTRAP_KEY = 0x100F,
  57         DPP_ATTR_OWN_NET_NK_HASH = 0x1011,
  58         DPP_ATTR_FINITE_CYCLIC_GROUP = 0x1012,
  59         DPP_ATTR_ENCRYPTED_KEY = 0x1013,
  60         DPP_ATTR_ENROLLEE_NONCE = 0x1014,
  61         DPP_ATTR_CODE_IDENTIFIER = 0x1015,
  62         DPP_ATTR_TRANSACTION_ID = 0x1016,
  63         DPP_ATTR_BOOTSTRAP_INFO = 0x1017,
  64         DPP_ATTR_CHANNEL = 0x1018,
  65         DPP_ATTR_PROTOCOL_VERSION = 0x1019,
  66         DPP_ATTR_ENVELOPED_DATA = 0x101A,
  67 };
  68
  69 enum dpp_status_error {
  70         DPP_STATUS_OK = 0,
  71         DPP_STATUS_NOT_COMPATIBLE = 1,
  72         DPP_STATUS_AUTH_FAILURE = 2,
  73         DPP_STATUS_UNWRAP_FAILURE = 3,
  74         DPP_STATUS_BAD_GROUP = 4,
  75         DPP_STATUS_CONFIGURE_FAILURE = 5,
  76         DPP_STATUS_RESPONSE_PENDING = 6,
  77         DPP_STATUS_INVALID_CONNECTOR = 7,
  78         DPP_STATUS_NO_MATCH = 8,
  79         DPP_STATUS_CONFIG_REJECTED = 9,
  80 };
  81
  82 #define DPP_CAPAB_ENROLLEE BIT(0)
  83 #define DPP_CAPAB_CONFIGURATOR BIT(1)
  84 #define DPP_CAPAB_ROLE_MASK (BIT(0) | BIT(1))
  85
  86 #define DPP_BOOTSTRAP_MAX_FREQ 30
  87 #define DPP_MAX_NONCE_LEN 32
  88 #define DPP_MAX_HASH_LEN 64
  89 #define DPP_MAX_SHARED_SECRET_LEN 66
  90
  91 struct dpp_curve_params {
  92         const char *name;
  93         size_t hash_len;
  94         size_t aes_siv_key_len;
  95         size_t nonce_len;
  96         size_t prime_len;
  97         const char *jwk_crv;
  98         u16 ike_group;
  99         const char *jws_alg;
 100 };
 101
 102 enum dpp_bootstrap_type {
 103         DPP_BOOTSTRAP_QR_CODE,
 104         DPP_BOOTSTRAP_PKEX,
 105 };
 106
 107 struct dpp_bootstrap_info {
 108         struct dl_list list;
 109         unsigned int id;
 110         enum dpp_bootstrap_type type;
 111         char *uri;
 112         u8 mac_addr[ETH_ALEN];
 113         char *info;
 114         unsigned int freq[DPP_BOOTSTRAP_MAX_FREQ];
 115         unsigned int num_freq;
 116         int own;
 117         EVP_PKEY *pubkey;
 118         u8 pubkey_hash[SHA256_MAC_LEN];
 119         const struct dpp_curve_params *curve;
 120         unsigned int pkex_t; /* number of failures before dpp_pkex
 121                               * instantiation */
 122 };
 123
 124 #define PKEX_COUNTER_T_LIMIT 5
 125
 126 struct dpp_pkex {
 127         void *msg_ctx;
 128         unsigned int initiator:1;
 129         unsigned int exchange_done:1;
 130         unsigned int failed:1;
 131         struct dpp_bootstrap_info *own_bi;
 132         u8 own_mac[ETH_ALEN];
 133         u8 peer_mac[ETH_ALEN];
 134         char *identifier;
 135         char *code;
 136         EVP_PKEY *x;
 137         EVP_PKEY *y;
 138         u8 Mx[DPP_MAX_SHARED_SECRET_LEN];
 139         u8 Nx[DPP_MAX_SHARED_SECRET_LEN];
 140         u8 z[DPP_MAX_HASH_LEN];
 141         EVP_PKEY *peer_bootstrap_key;
 142         struct wpabuf *exchange_req;
 143         struct wpabuf *exchange_resp;
 144         unsigned int t; /* number of failures on code use */
 145         unsigned int exch_req_wait_time;
 146         unsigned int exch_req_tries;
 147         unsigned int freq;
 148 };
 149
 150 enum dpp_akm {
 151         DPP_AKM_UNKNOWN,
 152         DPP_AKM_DPP,
 153         DPP_AKM_PSK,
 154         DPP_AKM_SAE,
 155         DPP_AKM_PSK_SAE,
 156         DPP_AKM_SAE_DPP,
 157         DPP_AKM_PSK_SAE_DPP,
 158 };
 159
 160 struct dpp_configuration {
 161         u8 ssid[32];
 162         size_t ssid_len;
 163         enum dpp_akm akm;
 164
 165         /* For DPP configuration (connector) */
 166         os_time_t netaccesskey_expiry;
 167
 168         /* TODO: groups */
 169         char *group_id;
 170
 171         /* For legacy configuration */
 172         char *passphrase;
 173         u8 psk[32];
 174         int psk_set;
 175 };
 176
 177 struct dpp_authentication {
 178         void *msg_ctx;
 179         u8 peer_version;
 180         const struct dpp_curve_params *curve;
 181         struct dpp_bootstrap_info *peer_bi;
 182         struct dpp_bootstrap_info *own_bi;
 183         struct dpp_bootstrap_info *tmp_own_bi;
 184         u8 waiting_pubkey_hash[SHA256_MAC_LEN];
 185         int response_pending;
 186         enum dpp_status_error auth_resp_status;
 187         enum dpp_status_error conf_resp_status;
 188         u8 peer_mac_addr[ETH_ALEN];
 189         u8 i_nonce[DPP_MAX_NONCE_LEN];
 190         u8 r_nonce[DPP_MAX_NONCE_LEN];
 191         u8 e_nonce[DPP_MAX_NONCE_LEN];
 192         u8 i_capab;
 193         u8 r_capab;
 194         EVP_PKEY *own_protocol_key;
 195         EVP_PKEY *peer_protocol_key;
 196         struct wpabuf *req_msg;
 197         struct wpabuf *resp_msg;
 198         /* Intersection of possible frequencies for initiating DPP
 199          * Authentication exchange */
 200         unsigned int freq[DPP_BOOTSTRAP_MAX_FREQ];
 201         unsigned int num_freq, freq_idx;
 202         unsigned int curr_freq;
 203         unsigned int neg_freq;
 204         unsigned int num_freq_iters;
 205         size_t secret_len;
 206         u8 Mx[DPP_MAX_SHARED_SECRET_LEN];
 207         size_t Mx_len;
 208         u8 Nx[DPP_MAX_SHARED_SECRET_LEN];
 209         size_t Nx_len;
 210         u8 Lx[DPP_MAX_SHARED_SECRET_LEN];
 211         size_t Lx_len;
 212         u8 k1[DPP_MAX_HASH_LEN];
 213         u8 k2[DPP_MAX_HASH_LEN];
 214         u8 ke[DPP_MAX_HASH_LEN];
 215         int initiator;
 216         int waiting_auth_resp;
 217         int waiting_auth_conf;
 218         int auth_req_ack;
 219         unsigned int auth_resp_tries;
 220         u8 allowed_roles;
 221         int configurator;
 222         int remove_on_tx_status;
 223         int connect_on_tx_status;
 224         int waiting_conf_result;
 225         int auth_success;
 226         struct wpabuf *conf_req;
 227         const struct wpabuf *conf_resp; /* owned by GAS server */
 228         struct dpp_configuration *conf_ap;
 229         struct dpp_configuration *conf_sta;
 230         struct dpp_configurator *conf;
 231         char *connector; /* received signedConnector */
 232         u8 ssid[SSID_MAX_LEN];
 233         u8 ssid_len;
 234         char passphrase[64];
 235         u8 psk[PMK_LEN];
 236         int psk_set;
 237         enum dpp_akm akm;
 238         struct wpabuf *net_access_key;
 239         os_time_t net_access_key_expiry;
 240         struct wpabuf *c_sign_key;
 241 #ifdef CONFIG_TESTING_OPTIONS
 242         char *config_obj_override;
 243         char *discovery_override;
 244         char *groups_override;
 245         unsigned int ignore_netaccesskey_mismatch:1;
 246 #endif /* CONFIG_TESTING_OPTIONS */
 247 };
 248
 249 struct dpp_configurator {
 250         struct dl_list list;
 251         unsigned int id;
 252         int own;
 253         EVP_PKEY *csign;
 254         char *kid;
 255         const struct dpp_curve_params *curve;
 256 };
 257
 258 struct dpp_introduction {
 259         u8 pmkid[PMKID_LEN];
 260         u8 pmk[PMK_LEN_MAX];
 261         size_t pmk_len;
 262 };
 263
 264 struct dpp_relay_config {
 265         const struct hostapd_ip_addr *ipaddr;
 266         const u8 *pkhash;
 267
 268         void *cb_ctx;
 269         void (*tx)(void *ctx, const u8 *addr, unsigned int freq, const u8 *msg,
 270                    size_t len);
 271         void (*gas_resp_tx)(void *ctx, const u8 *addr, u8 dialog_token, int prot,
 272                             struct wpabuf *buf);
 273 };
 274
 275 struct dpp_controller_config {
 276         const char *configurator_params;
 277         int tcp_port;
 278 };
 279
 280 #ifdef CONFIG_TESTING_OPTIONS
 281 enum dpp_test_behavior {
 282         DPP_TEST_DISABLED = 0,
 283         DPP_TEST_AFTER_WRAPPED_DATA_AUTH_REQ = 1,
 284         DPP_TEST_AFTER_WRAPPED_DATA_AUTH_RESP = 2,
 285         DPP_TEST_AFTER_WRAPPED_DATA_AUTH_CONF = 3,
 286         DPP_TEST_AFTER_WRAPPED_DATA_PKEX_CR_REQ = 4,
 287         DPP_TEST_AFTER_WRAPPED_DATA_PKEX_CR_RESP = 5,
 288         DPP_TEST_AFTER_WRAPPED_DATA_CONF_REQ = 6,
 289         DPP_TEST_AFTER_WRAPPED_DATA_CONF_RESP = 7,
 290         DPP_TEST_ZERO_I_CAPAB = 8,
 291         DPP_TEST_ZERO_R_CAPAB = 9,
 292         DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_REQ = 10,
 293         DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_REQ = 11,
 294         DPP_TEST_NO_I_PROTO_KEY_AUTH_REQ = 12,
 295         DPP_TEST_NO_I_NONCE_AUTH_REQ = 13,
 296         DPP_TEST_NO_I_CAPAB_AUTH_REQ = 14,
 297         DPP_TEST_NO_WRAPPED_DATA_AUTH_REQ = 15,
 298         DPP_TEST_NO_STATUS_AUTH_RESP = 16,
 299         DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_RESP = 17,
 300         DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_RESP = 18,
 301         DPP_TEST_NO_R_PROTO_KEY_AUTH_RESP = 19,
 302         DPP_TEST_NO_R_NONCE_AUTH_RESP = 20,
 303         DPP_TEST_NO_I_NONCE_AUTH_RESP = 21,
 304         DPP_TEST_NO_R_CAPAB_AUTH_RESP = 22,
 305         DPP_TEST_NO_R_AUTH_AUTH_RESP = 23,
 306         DPP_TEST_NO_WRAPPED_DATA_AUTH_RESP = 24,
 307         DPP_TEST_NO_STATUS_AUTH_CONF = 25,
 308         DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_CONF = 26,
 309         DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_CONF = 27,
 310         DPP_TEST_NO_I_AUTH_AUTH_CONF = 28,
 311         DPP_TEST_NO_WRAPPED_DATA_AUTH_CONF = 29,
 312         DPP_TEST_I_NONCE_MISMATCH_AUTH_RESP = 30,
 313         DPP_TEST_INCOMPATIBLE_R_CAPAB_AUTH_RESP = 31,
 314         DPP_TEST_R_AUTH_MISMATCH_AUTH_RESP = 32,
 315         DPP_TEST_I_AUTH_MISMATCH_AUTH_CONF = 33,
 316         DPP_TEST_NO_FINITE_CYCLIC_GROUP_PKEX_EXCHANGE_REQ = 34,
 317         DPP_TEST_NO_ENCRYPTED_KEY_PKEX_EXCHANGE_REQ = 35,
 318         DPP_TEST_NO_STATUS_PKEX_EXCHANGE_RESP = 36,
 319         DPP_TEST_NO_ENCRYPTED_KEY_PKEX_EXCHANGE_RESP = 37,
 320         DPP_TEST_NO_BOOTSTRAP_KEY_PKEX_CR_REQ = 38,
 321         DPP_TEST_NO_I_AUTH_TAG_PKEX_CR_REQ = 39,
 322         DPP_TEST_NO_WRAPPED_DATA_PKEX_CR_REQ = 40,
 323         DPP_TEST_NO_BOOTSTRAP_KEY_PKEX_CR_RESP = 41,
 324         DPP_TEST_NO_R_AUTH_TAG_PKEX_CR_RESP = 42,
 325         DPP_TEST_NO_WRAPPED_DATA_PKEX_CR_RESP = 43,
 326         DPP_TEST_INVALID_ENCRYPTED_KEY_PKEX_EXCHANGE_REQ = 44,
 327         DPP_TEST_INVALID_ENCRYPTED_KEY_PKEX_EXCHANGE_RESP = 45,
 328         DPP_TEST_INVALID_STATUS_PKEX_EXCHANGE_RESP = 46,
 329         DPP_TEST_INVALID_BOOTSTRAP_KEY_PKEX_CR_REQ = 47,
 330         DPP_TEST_INVALID_BOOTSTRAP_KEY_PKEX_CR_RESP = 48,
 331         DPP_TEST_I_AUTH_TAG_MISMATCH_PKEX_CR_REQ = 49,
 332         DPP_TEST_R_AUTH_TAG_MISMATCH_PKEX_CR_RESP = 50,
 333         DPP_TEST_NO_E_NONCE_CONF_REQ = 51,
 334         DPP_TEST_NO_CONFIG_ATTR_OBJ_CONF_REQ = 52,
 335         DPP_TEST_NO_WRAPPED_DATA_CONF_REQ = 53,
 336         DPP_TEST_NO_E_NONCE_CONF_RESP = 54,
 337         DPP_TEST_NO_CONFIG_OBJ_CONF_RESP = 55,
 338         DPP_TEST_NO_STATUS_CONF_RESP = 56,
 339         DPP_TEST_NO_WRAPPED_DATA_CONF_RESP = 57,
 340         DPP_TEST_INVALID_STATUS_CONF_RESP = 58,
 341         DPP_TEST_E_NONCE_MISMATCH_CONF_RESP = 59,
 342         DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ = 60,
 343         DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ = 61,
 344         DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_RESP = 62,
 345         DPP_TEST_NO_STATUS_PEER_DISC_RESP = 63,
 346         DPP_TEST_NO_CONNECTOR_PEER_DISC_RESP = 64,
 347         DPP_TEST_AUTH_RESP_IN_PLACE_OF_CONF = 65,
 348         DPP_TEST_INVALID_I_PROTO_KEY_AUTH_REQ = 66,
 349         DPP_TEST_INVALID_R_PROTO_KEY_AUTH_RESP = 67,
 350         DPP_TEST_INVALID_R_BOOTSTRAP_KEY_HASH_AUTH_REQ = 68,
 351         DPP_TEST_INVALID_I_BOOTSTRAP_KEY_HASH_AUTH_REQ = 69,
 352         DPP_TEST_INVALID_R_BOOTSTRAP_KEY_HASH_AUTH_RESP = 70,
 353         DPP_TEST_INVALID_I_BOOTSTRAP_KEY_HASH_AUTH_RESP = 71,
 354         DPP_TEST_INVALID_R_BOOTSTRAP_KEY_HASH_AUTH_CONF = 72,
 355         DPP_TEST_INVALID_I_BOOTSTRAP_KEY_HASH_AUTH_CONF = 73,
 356         DPP_TEST_INVALID_STATUS_AUTH_RESP = 74,
 357         DPP_TEST_INVALID_STATUS_AUTH_CONF = 75,
 358         DPP_TEST_INVALID_CONFIG_ATTR_OBJ_CONF_REQ = 76,
 359         DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_RESP = 77,
 360         DPP_TEST_INVALID_STATUS_PEER_DISC_RESP = 78,
 361         DPP_TEST_INVALID_CONNECTOR_PEER_DISC_RESP = 79,
 362         DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ = 80,
 363         DPP_TEST_INVALID_I_NONCE_AUTH_REQ = 81,
 364         DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ = 82,
 365         DPP_TEST_INVALID_E_NONCE_CONF_REQ = 83,
 366         DPP_TEST_STOP_AT_PKEX_EXCHANGE_RESP = 84,
 367         DPP_TEST_STOP_AT_PKEX_CR_REQ = 85,
 368         DPP_TEST_STOP_AT_PKEX_CR_RESP = 86,
 369         DPP_TEST_STOP_AT_AUTH_REQ = 87,
 370         DPP_TEST_STOP_AT_AUTH_RESP = 88,
 371         DPP_TEST_STOP_AT_AUTH_CONF = 89,
 372         DPP_TEST_STOP_AT_CONF_REQ = 90,
 373         DPP_TEST_REJECT_CONFIG = 91,
 374 };
 375
 376 extern enum dpp_test_behavior dpp_test;
 377 extern u8 dpp_pkex_own_mac_override[ETH_ALEN];
 378 extern u8 dpp_pkex_peer_mac_override[ETH_ALEN];
 379 extern u8 dpp_pkex_ephemeral_key_override[600];
 380 extern size_t dpp_pkex_ephemeral_key_override_len;
 381 extern u8 dpp_protocol_key_override[600];
 382 extern size_t dpp_protocol_key_override_len;
 383 extern u8 dpp_nonce_override[DPP_MAX_NONCE_LEN];
 384 extern size_t dpp_nonce_override_len;
 385 #endif /* CONFIG_TESTING_OPTIONS */
 386
 387 void dpp_bootstrap_info_free(struct dpp_bootstrap_info *info);
 388 const char * dpp_bootstrap_type_txt(enum dpp_bootstrap_type type);
 389 int dpp_bootstrap_key_hash(struct dpp_bootstrap_info *bi);
 390 int dpp_parse_uri_chan_list(struct dpp_bootstrap_info *bi,
 391                             const char *chan_list);
 392 int dpp_parse_uri_mac(struct dpp_bootstrap_info *bi, const char *mac);
 393 int dpp_parse_uri_info(struct dpp_bootstrap_info *bi, const char *info);
 394 struct dpp_bootstrap_info * dpp_parse_qr_code(const char *uri);
 395 char * dpp_keygen(struct dpp_bootstrap_info *bi, const char *curve,
 396                   const u8 *privkey, size_t privkey_len);
 397 struct hostapd_hw_modes;
 398 struct dpp_authentication * dpp_auth_init(void *msg_ctx,
 399                                           struct dpp_bootstrap_info *peer_bi,
 400                                           struct dpp_bootstrap_info *own_bi,
 401                                           u8 dpp_allowed_roles,
 402                                           unsigned int neg_freq,
 403                                           struct hostapd_hw_modes *own_modes,
 404                                           u16 num_modes);
 405 struct dpp_authentication *
 406 dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
 407                 struct dpp_bootstrap_info *peer_bi,
 408                 struct dpp_bootstrap_info *own_bi,
 409                 unsigned int freq, const u8 *hdr, const u8 *attr_start,
 410                 size_t attr_len);
 411 struct wpabuf *
 412 dpp_auth_resp_rx(struct dpp_authentication *auth, const u8 *hdr,
 413                  const u8 *attr_start, size_t attr_len);
 414 struct wpabuf * dpp_build_conf_req(struct dpp_authentication *auth,
 415                                    const char *json);
 416 int dpp_auth_conf_rx(struct dpp_authentication *auth, const u8 *hdr,
 417                      const u8 *attr_start, size_t attr_len);
 418 int dpp_notify_new_qr_code(struct dpp_authentication *auth,
 419                            struct dpp_bootstrap_info *peer_bi);
 420 struct dpp_configuration * dpp_configuration_alloc(const char *type);
 421 int dpp_akm_psk(enum dpp_akm akm);
 422 int dpp_akm_sae(enum dpp_akm akm);
 423 int dpp_akm_legacy(enum dpp_akm akm);
 424 int dpp_akm_dpp(enum dpp_akm akm);
 425 int dpp_akm_ver2(enum dpp_akm akm);
 426 int dpp_configuration_valid(const struct dpp_configuration *conf);
 427 void dpp_configuration_free(struct dpp_configuration *conf);
 428 int dpp_set_configurator(struct dpp_global *dpp, void *msg_ctx,
 429                          struct dpp_authentication *auth,
 430                          const char *cmd);
 431 void dpp_auth_deinit(struct dpp_authentication *auth);
 432 struct wpabuf *
 433 dpp_conf_req_rx(struct dpp_authentication *auth, const u8 *attr_start,
 434                 size_t attr_len);
 435 int dpp_conf_resp_rx(struct dpp_authentication *auth,
 436                      const struct wpabuf *resp);
 437 enum dpp_status_error dpp_conf_result_rx(struct dpp_authentication *auth,
 438                                          const u8 *hdr,
 439                                          const u8 *attr_start, size_t attr_len);
 440 struct wpabuf * dpp_build_conf_result(struct dpp_authentication *auth,
 441                                       enum dpp_status_error status);
 442 struct wpabuf * dpp_alloc_msg(enum dpp_public_action_frame_type type,
 443                               size_t len);
 444 const u8 * dpp_get_attr(const u8 *buf, size_t len, u16 req_id, u16 *ret_len);
 445 int dpp_check_attrs(const u8 *buf, size_t len);
 446 int dpp_key_expired(const char *timestamp, os_time_t *expiry);
 447 const char * dpp_akm_str(enum dpp_akm akm);
 448 int dpp_configurator_get_key(const struct dpp_configurator *conf, char *buf,
 449                              size_t buflen);
 450 void dpp_configurator_free(struct dpp_configurator *conf);
 451 struct dpp_configurator *
 452 dpp_keygen_configurator(const char *curve, const u8 *privkey,
 453                         size_t privkey_len);
 454 int dpp_configurator_own_config(struct dpp_authentication *auth,
 455                                 const char *curve, int ap);
 456 enum dpp_status_error
 457 dpp_peer_intro(struct dpp_introduction *intro, const char *own_connector,
 458                const u8 *net_access_key, size_t net_access_key_len,
 459                const u8 *csign_key, size_t csign_key_len,
 460                const u8 *peer_connector, size_t peer_connector_len,
 461                os_time_t *expiry);
 462 struct dpp_pkex * dpp_pkex_init(void *msg_ctx, struct dpp_bootstrap_info *bi,
 463                                 const u8 *own_mac,
 464                                 const char *identifier,
 465                                 const char *code);
 466 struct dpp_pkex * dpp_pkex_rx_exchange_req(void *msg_ctx,
 467                                            struct dpp_bootstrap_info *bi,
 468                                            const u8 *own_mac,
 469                                            const u8 *peer_mac,
 470                                            const char *identifier,
 471                                            const char *code,
 472                                            const u8 *buf, size_t len);
 473 struct wpabuf * dpp_pkex_rx_exchange_resp(struct dpp_pkex *pkex,
 474                                           const u8 *peer_mac,
 475                                           const u8 *buf, size_t len);
 476 struct wpabuf * dpp_pkex_rx_commit_reveal_req(struct dpp_pkex *pkex,
 477                                               const u8 *hdr,
 478                                               const u8 *buf, size_t len);
 479 int dpp_pkex_rx_commit_reveal_resp(struct dpp_pkex *pkex, const u8 *hdr,
 480                                    const u8 *buf, size_t len);
 481 void dpp_pkex_free(struct dpp_pkex *pkex);
 482
 483 char * dpp_corrupt_connector_signature(const char *connector);
 484
 485
 486 struct dpp_pfs {
 487         struct crypto_ecdh *ecdh;
 488         const struct dpp_curve_params *curve;
 489         struct wpabuf *ie;
 490         struct wpabuf *secret;
 491 };
 492
 493 struct dpp_pfs * dpp_pfs_init(const u8 *net_access_key,
 494                               size_t net_access_key_len);
 495 int dpp_pfs_process(struct dpp_pfs *pfs, const u8 *peer_ie, size_t peer_ie_len);
 496 void dpp_pfs_free(struct dpp_pfs *pfs);
 497
 498 struct dpp_bootstrap_info * dpp_add_qr_code(struct dpp_global *dpp,
 499                                             const char *uri);
 500 int dpp_bootstrap_gen(struct dpp_global *dpp, const char *cmd);
 501 struct dpp_bootstrap_info *
 502 dpp_bootstrap_get_id(struct dpp_global *dpp, unsigned int id);
 503 int dpp_bootstrap_remove(struct dpp_global *dpp, const char *id);
 504 struct dpp_bootstrap_info *
 505 dpp_pkex_finish(struct dpp_global *dpp, struct dpp_pkex *pkex, const u8 *peer,
 506                 unsigned int freq);
 507 const char * dpp_bootstrap_get_uri(struct dpp_global *dpp, unsigned int id);
 508 int dpp_bootstrap_info(struct dpp_global *dpp, int id,
 509                        char *reply, int reply_size);
 510 void dpp_bootstrap_find_pair(struct dpp_global *dpp, const u8 *i_bootstrap,
 511                              const u8 *r_bootstrap,
 512                              struct dpp_bootstrap_info **own_bi,
 513                              struct dpp_bootstrap_info **peer_bi);
 514 int dpp_configurator_add(struct dpp_global *dpp, const char *cmd);
 515 int dpp_configurator_remove(struct dpp_global *dpp, const char *id);
 516 int dpp_configurator_get_key_id(struct dpp_global *dpp, unsigned int id,
 517                                 char *buf, size_t buflen);
 518 int dpp_relay_add_controller(struct dpp_global *dpp,
 519                              struct dpp_relay_config *config);
 520 int dpp_relay_rx_action(struct dpp_global *dpp, const u8 *src, const u8 *hdr,
 521                         const u8 *buf, size_t len, unsigned int freq,
 522                         const u8 *i_bootstrap, const u8 *r_bootstrap);
 523 int dpp_relay_rx_gas_req(struct dpp_global *dpp, const u8 *src, const u8 *data,
 524                          size_t data_len);
 525 int dpp_controller_start(struct dpp_global *dpp,
 526                          struct dpp_controller_config *config);
 527 void dpp_controller_stop(struct dpp_global *dpp);
 528 int dpp_tcp_init(struct dpp_global *dpp, struct dpp_authentication *auth,
 529                  const struct hostapd_ip_addr *addr, int port);
 530
 531 struct dpp_global_config {
 532         void *msg_ctx;
 533         void *cb_ctx;
 534         int (*process_conf_obj)(void *ctx, struct dpp_authentication *auth);
 535 };
 536
 537 struct dpp_global * dpp_global_init(struct dpp_global_config *config);
 538 void dpp_global_clear(struct dpp_global *dpp);
 539 void dpp_global_deinit(struct dpp_global *dpp);
 540
 541 #endif /* CONFIG_DPP */
 542 #endif /* DPP_H */