1 /* 2 * WPA Supplicant - Basic mesh mode routines 3 * Copyright (c) 2013-2014, cozybit, Inc. All rights reserved. 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "utils/includes.h" 10 11 #include "utils/common.h" 12 #include "utils/eloop.h" 13 #include "utils/uuid.h" 14 #include "common/ieee802_11_defs.h" 15 #include "common/wpa_ctrl.h" 16 #include "ap/sta_info.h" 17 #include "ap/hostapd.h" 18 #include "ap/ieee802_11.h" 19 #include "config_ssid.h" 20 #include "config.h" 21 #include "wpa_supplicant_i.h" 22 #include "driver_i.h" 23 #include "notify.h" 24 #include "ap.h" 25 #include "mesh_mpm.h" 26 #include "mesh_rsn.h" 27 #include "mesh.h" 28 29 30 static void wpa_supplicant_mesh_deinit(struct wpa_supplicant *wpa_s) 31 { 32 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh); 33 wpa_s->ifmsh = NULL; 34 wpa_s->current_ssid = NULL; 35 os_free(wpa_s->mesh_rsn); 36 wpa_s->mesh_rsn = NULL; 37 os_free(wpa_s->mesh_params); 38 wpa_s->mesh_params = NULL; 39 /* TODO: leave mesh (stop beacon). This will happen on link down 40 * anyway, so it's not urgent */ 41 } 42 43 44 void wpa_supplicant_mesh_iface_deinit(struct wpa_supplicant *wpa_s, 45 struct hostapd_iface *ifmsh) 46 { 47 if (!ifmsh) 48 return; 49 50 if (ifmsh->mconf) { 51 mesh_mpm_deinit(wpa_s, ifmsh); 52 if (ifmsh->mconf->rsn_ie) { 53 ifmsh->mconf->rsn_ie = NULL; 54 /* We cannot free this struct 55 * because wpa_authenticator on 56 * hostapd side is also using it 57 * for now just set to NULL and 58 * let hostapd code free it. 59 */ 60 } 61 os_free(ifmsh->mconf); 62 ifmsh->mconf = NULL; 63 } 64 65 /* take care of shared data */ 66 hostapd_interface_deinit(ifmsh); 67 hostapd_interface_free(ifmsh); 68 } 69 70 71 static struct mesh_conf * mesh_config_create(struct wpa_supplicant *wpa_s, 72 struct wpa_ssid *ssid) 73 { 74 struct mesh_conf *conf; 75 int cipher; 76 77 conf = os_zalloc(sizeof(struct mesh_conf)); 78 if (!conf) 79 return NULL; 80 81 os_memcpy(conf->meshid, ssid->ssid, ssid->ssid_len); 82 conf->meshid_len = ssid->ssid_len; 83 84 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) 85 conf->security |= MESH_CONF_SEC_AUTH | 86 MESH_CONF_SEC_AMPE; 87 else 88 conf->security |= MESH_CONF_SEC_NONE; 89 #ifdef CONFIG_IEEE80211W 90 conf->ieee80211w = ssid->ieee80211w; 91 if (conf->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) { 92 if (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP) 93 conf->ieee80211w = wpa_s->conf->pmf; 94 else 95 conf->ieee80211w = NO_MGMT_FRAME_PROTECTION; 96 } 97 #endif /* CONFIG_IEEE80211W */ 98 #ifdef CONFIG_OCV 99 conf->ocv = ssid->ocv; 100 #endif /* CONFIG_OCV */ 101 102 cipher = wpa_pick_pairwise_cipher(ssid->pairwise_cipher, 0); 103 if (cipher < 0 || cipher == WPA_CIPHER_TKIP) { 104 wpa_msg(wpa_s, MSG_INFO, "mesh: Invalid pairwise cipher"); 105 os_free(conf); 106 return NULL; 107 } 108 conf->pairwise_cipher = cipher; 109 110 cipher = wpa_pick_group_cipher(ssid->group_cipher); 111 if (cipher < 0 || cipher == WPA_CIPHER_TKIP || 112 cipher == WPA_CIPHER_GTK_NOT_USED) { 113 wpa_msg(wpa_s, MSG_INFO, "mesh: Invalid group cipher"); 114 os_free(conf); 115 return NULL; 116 } 117 118 conf->group_cipher = cipher; 119 if (conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) 120 conf->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; 121 122 /* defaults */ 123 conf->mesh_pp_id = MESH_PATH_PROTOCOL_HWMP; 124 conf->mesh_pm_id = MESH_PATH_METRIC_AIRTIME; 125 conf->mesh_cc_id = 0; 126 conf->mesh_sp_id = MESH_SYNC_METHOD_NEIGHBOR_OFFSET; 127 conf->mesh_auth_id = (conf->security & MESH_CONF_SEC_AUTH) ? 1 : 0; 128 conf->dot11MeshMaxRetries = ssid->dot11MeshMaxRetries; 129 conf->dot11MeshRetryTimeout = ssid->dot11MeshRetryTimeout; 130 conf->dot11MeshConfirmTimeout = ssid->dot11MeshConfirmTimeout; 131 conf->dot11MeshHoldingTimeout = ssid->dot11MeshHoldingTimeout; 132 133 return conf; 134 } 135 136 137 static void wpas_mesh_copy_groups(struct hostapd_data *bss, 138 struct wpa_supplicant *wpa_s) 139 { 140 int num_groups; 141 size_t groups_size; 142 143 for (num_groups = 0; wpa_s->conf->sae_groups[num_groups] > 0; 144 num_groups++) 145 ; 146 147 groups_size = (num_groups + 1) * sizeof(wpa_s->conf->sae_groups[0]); 148 bss->conf->sae_groups = os_malloc(groups_size); 149 if (bss->conf->sae_groups) 150 os_memcpy(bss->conf->sae_groups, wpa_s->conf->sae_groups, 151 groups_size); 152 } 153 154 155 static int wpas_mesh_init_rsn(struct wpa_supplicant *wpa_s) 156 { 157 struct hostapd_iface *ifmsh = wpa_s->ifmsh; 158 struct wpa_ssid *ssid = wpa_s->current_ssid; 159 struct hostapd_data *bss = ifmsh->bss[0]; 160 static int default_groups[] = { 19, 20, 21, 25, 26, -1 }; 161 const char *password; 162 size_t len; 163 164 password = ssid->sae_password; 165 if (!password) 166 password = ssid->passphrase; 167 if (!password) { 168 wpa_printf(MSG_ERROR, 169 "mesh: Passphrase for SAE not configured"); 170 return -1; 171 } 172 173 bss->conf->wpa = ssid->proto; 174 bss->conf->wpa_key_mgmt = ssid->key_mgmt; 175 176 if (wpa_s->conf->sae_groups && wpa_s->conf->sae_groups[0] > 0) { 177 wpas_mesh_copy_groups(bss, wpa_s); 178 } else { 179 bss->conf->sae_groups = os_memdup(default_groups, 180 sizeof(default_groups)); 181 if (!bss->conf->sae_groups) 182 return -1; 183 } 184 185 len = os_strlen(password); 186 bss->conf->ssid.wpa_passphrase = dup_binstr(password, len); 187 188 wpa_s->mesh_rsn = mesh_rsn_auth_init(wpa_s, ifmsh->mconf); 189 return !wpa_s->mesh_rsn ? -1 : 0; 190 } 191 192 193 static int wpas_mesh_complete(struct wpa_supplicant *wpa_s) 194 { 195 struct hostapd_iface *ifmsh = wpa_s->ifmsh; 196 struct wpa_driver_mesh_join_params *params = wpa_s->mesh_params; 197 struct wpa_ssid *ssid = wpa_s->current_ssid; 198 int ret; 199 200 if (!params || !ssid || !ifmsh) { 201 wpa_printf(MSG_ERROR, "mesh: %s called without active mesh", 202 __func__); 203 return -1; 204 } 205 206 if (ifmsh->mconf->security != MESH_CONF_SEC_NONE && 207 wpas_mesh_init_rsn(wpa_s)) { 208 wpa_printf(MSG_ERROR, 209 "mesh: RSN initialization failed - deinit mesh"); 210 wpa_supplicant_mesh_deinit(wpa_s); 211 return -1; 212 } 213 214 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) { 215 wpa_s->pairwise_cipher = wpa_s->mesh_rsn->pairwise_cipher; 216 wpa_s->group_cipher = wpa_s->mesh_rsn->group_cipher; 217 wpa_s->mgmt_group_cipher = wpa_s->mesh_rsn->mgmt_group_cipher; 218 } 219 220 params->ies = ifmsh->mconf->rsn_ie; 221 params->ie_len = ifmsh->mconf->rsn_ie_len; 222 params->basic_rates = ifmsh->basic_rates; 223 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE; 224 params->conf.ht_opmode = ifmsh->bss[0]->iface->ht_op_mode; 225 226 wpa_msg(wpa_s, MSG_INFO, "joining mesh %s", 227 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 228 ret = wpa_drv_join_mesh(wpa_s, params); 229 if (ret) 230 wpa_msg(wpa_s, MSG_ERROR, "mesh join error=%d", ret); 231 232 /* hostapd sets the interface down until we associate */ 233 wpa_drv_set_operstate(wpa_s, 1); 234 235 if (!ret) 236 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 237 238 return ret; 239 } 240 241 242 static int wpa_supplicant_mesh_init(struct wpa_supplicant *wpa_s, 243 struct wpa_ssid *ssid, 244 struct hostapd_freq_params *freq) 245 { 246 struct hostapd_iface *ifmsh; 247 struct hostapd_data *bss; 248 struct hostapd_config *conf; 249 struct mesh_conf *mconf; 250 int basic_rates_erp[] = { 10, 20, 55, 60, 110, 120, 240, -1 }; 251 int rate_len; 252 int frequency; 253 254 if (!wpa_s->conf->user_mpm) { 255 /* not much for us to do here */ 256 wpa_msg(wpa_s, MSG_WARNING, 257 "user_mpm is not enabled in configuration"); 258 return 0; 259 } 260 261 wpa_s->ifmsh = ifmsh = hostapd_alloc_iface(); 262 if (!ifmsh) 263 return -ENOMEM; 264 265 ifmsh->drv_flags = wpa_s->drv_flags; 266 ifmsh->num_bss = 1; 267 ifmsh->bss = os_calloc(wpa_s->ifmsh->num_bss, 268 sizeof(struct hostapd_data *)); 269 if (!ifmsh->bss) 270 goto out_free; 271 272 ifmsh->bss[0] = bss = hostapd_alloc_bss_data(NULL, NULL, NULL); 273 if (!bss) 274 goto out_free; 275 276 ifmsh->bss[0]->msg_ctx = wpa_s; 277 os_memcpy(bss->own_addr, wpa_s->own_addr, ETH_ALEN); 278 bss->driver = wpa_s->driver; 279 bss->drv_priv = wpa_s->drv_priv; 280 bss->iface = ifmsh; 281 bss->mesh_sta_free_cb = mesh_mpm_free_sta; 282 frequency = ssid->frequency; 283 if (frequency != freq->freq && 284 frequency == freq->freq + freq->sec_channel_offset * 20) { 285 wpa_printf(MSG_DEBUG, "mesh: pri/sec channels switched"); 286 frequency = freq->freq; 287 } 288 wpa_s->assoc_freq = frequency; 289 wpa_s->current_ssid = ssid; 290 291 /* setup an AP config for auth processing */ 292 conf = hostapd_config_defaults(); 293 if (!conf) 294 goto out_free; 295 296 bss->conf = *conf->bss; 297 bss->conf->start_disabled = 1; 298 bss->conf->mesh = MESH_ENABLED; 299 bss->conf->ap_max_inactivity = wpa_s->conf->mesh_max_inactivity; 300 301 if (ieee80211_is_dfs(ssid->frequency, wpa_s->hw.modes, 302 wpa_s->hw.num_modes) && wpa_s->conf->country[0]) { 303 conf->ieee80211h = 1; 304 conf->ieee80211d = 1; 305 conf->country[0] = wpa_s->conf->country[0]; 306 conf->country[1] = wpa_s->conf->country[1]; 307 conf->country[2] = ' '; 308 } 309 310 bss->iconf = conf; 311 ifmsh->conf = conf; 312 313 ifmsh->bss[0]->max_plinks = wpa_s->conf->max_peer_links; 314 ifmsh->bss[0]->dot11RSNASAERetransPeriod = 315 wpa_s->conf->dot11RSNASAERetransPeriod; 316 os_strlcpy(bss->conf->iface, wpa_s->ifname, sizeof(bss->conf->iface)); 317 318 mconf = mesh_config_create(wpa_s, ssid); 319 if (!mconf) 320 goto out_free; 321 ifmsh->mconf = mconf; 322 323 /* need conf->hw_mode for supported rates. */ 324 conf->hw_mode = ieee80211_freq_to_chan(frequency, &conf->channel); 325 if (conf->hw_mode == NUM_HOSTAPD_MODES) { 326 wpa_printf(MSG_ERROR, "Unsupported mesh mode frequency: %d MHz", 327 frequency); 328 goto out_free; 329 } 330 if (ssid->ht40) 331 conf->secondary_channel = ssid->ht40; 332 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && ssid->vht) { 333 if (ssid->max_oper_chwidth != DEFAULT_MAX_OPER_CHWIDTH) 334 conf->vht_oper_chwidth = ssid->max_oper_chwidth; 335 switch (conf->vht_oper_chwidth) { 336 case VHT_CHANWIDTH_80MHZ: 337 case VHT_CHANWIDTH_80P80MHZ: 338 ieee80211_freq_to_chan( 339 frequency, 340 &conf->vht_oper_centr_freq_seg0_idx); 341 conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2; 342 break; 343 case VHT_CHANWIDTH_160MHZ: 344 ieee80211_freq_to_chan( 345 frequency, 346 &conf->vht_oper_centr_freq_seg0_idx); 347 conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2; 348 conf->vht_oper_centr_freq_seg0_idx += 40 / 5; 349 break; 350 } 351 ieee80211_freq_to_chan(ssid->vht_center_freq2, 352 &conf->vht_oper_centr_freq_seg1_idx); 353 } 354 355 if (ssid->mesh_basic_rates == NULL) { 356 /* 357 * XXX: Hack! This is so an MPM which correctly sets the ERP 358 * mandatory rates as BSSBasicRateSet doesn't reject us. We 359 * could add a new hw_mode HOSTAPD_MODE_IEEE80211G_ERP, but 360 * this is way easier. This also makes our BSSBasicRateSet 361 * advertised in beacons match the one in peering frames, sigh. 362 */ 363 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) { 364 conf->basic_rates = os_memdup(basic_rates_erp, 365 sizeof(basic_rates_erp)); 366 if (!conf->basic_rates) 367 goto out_free; 368 } 369 } else { 370 rate_len = 0; 371 while (1) { 372 if (ssid->mesh_basic_rates[rate_len] < 1) 373 break; 374 rate_len++; 375 } 376 conf->basic_rates = os_calloc(rate_len + 1, sizeof(int)); 377 if (conf->basic_rates == NULL) 378 goto out_free; 379 os_memcpy(conf->basic_rates, ssid->mesh_basic_rates, 380 rate_len * sizeof(int)); 381 conf->basic_rates[rate_len] = -1; 382 } 383 384 if (wpa_drv_init_mesh(wpa_s)) { 385 wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh in driver"); 386 return -1; 387 } 388 389 if (hostapd_setup_interface(ifmsh)) { 390 wpa_printf(MSG_ERROR, 391 "Failed to initialize hostapd interface for mesh"); 392 return -1; 393 } 394 395 wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf); 396 397 return 0; 398 out_free: 399 wpa_supplicant_mesh_deinit(wpa_s); 400 return -ENOMEM; 401 } 402 403 404 void wpa_mesh_notify_peer(struct wpa_supplicant *wpa_s, const u8 *addr, 405 const u8 *ies, size_t ie_len) 406 { 407 struct ieee802_11_elems elems; 408 409 wpa_msg(wpa_s, MSG_INFO, 410 "new peer notification for " MACSTR, MAC2STR(addr)); 411 412 if (ieee802_11_parse_elems(ies, ie_len, &elems, 0) == ParseFailed) { 413 wpa_msg(wpa_s, MSG_INFO, "Could not parse beacon from " MACSTR, 414 MAC2STR(addr)); 415 return; 416 } 417 wpa_mesh_new_mesh_peer(wpa_s, addr, &elems); 418 } 419 420 421 void wpa_supplicant_mesh_add_scan_ie(struct wpa_supplicant *wpa_s, 422 struct wpabuf **extra_ie) 423 { 424 /* EID + 0-length (wildcard) mesh-id */ 425 size_t ielen = 2; 426 427 if (wpabuf_resize(extra_ie, ielen) == 0) { 428 wpabuf_put_u8(*extra_ie, WLAN_EID_MESH_ID); 429 wpabuf_put_u8(*extra_ie, 0); 430 } 431 } 432 433 434 int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s, 435 struct wpa_ssid *ssid) 436 { 437 struct wpa_driver_mesh_join_params *params = os_zalloc(sizeof(*params)); 438 int ret = 0; 439 440 if (!ssid || !ssid->ssid || !ssid->ssid_len || !ssid->frequency || 441 !params) { 442 ret = -ENOENT; 443 os_free(params); 444 goto out; 445 } 446 447 wpa_supplicant_mesh_deinit(wpa_s); 448 449 wpa_s->pairwise_cipher = WPA_CIPHER_NONE; 450 wpa_s->group_cipher = WPA_CIPHER_NONE; 451 wpa_s->mgmt_group_cipher = 0; 452 453 params->meshid = ssid->ssid; 454 params->meshid_len = ssid->ssid_len; 455 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms->freq); 456 wpa_s->mesh_ht_enabled = !!params->freq.ht_enabled; 457 wpa_s->mesh_vht_enabled = !!params->freq.vht_enabled; 458 if (params->freq.ht_enabled && params->freq.sec_channel_offset) 459 ssid->ht40 = params->freq.sec_channel_offset; 460 461 if (wpa_s->mesh_vht_enabled) { 462 ssid->vht = 1; 463 ssid->vht_center_freq1 = params->freq.center_freq1; 464 switch (params->freq.bandwidth) { 465 case 80: 466 if (params->freq.center_freq2) { 467 ssid->max_oper_chwidth = VHT_CHANWIDTH_80P80MHZ; 468 ssid->vht_center_freq2 = 469 params->freq.center_freq2; 470 } else { 471 ssid->max_oper_chwidth = VHT_CHANWIDTH_80MHZ; 472 } 473 break; 474 case 160: 475 ssid->max_oper_chwidth = VHT_CHANWIDTH_160MHZ; 476 break; 477 default: 478 ssid->max_oper_chwidth = VHT_CHANWIDTH_USE_HT; 479 break; 480 } 481 } 482 if (ssid->beacon_int > 0) 483 params->beacon_int = ssid->beacon_int; 484 else if (wpa_s->conf->beacon_int > 0) 485 params->beacon_int = wpa_s->conf->beacon_int; 486 if (ssid->dtim_period > 0) 487 params->dtim_period = ssid->dtim_period; 488 else if (wpa_s->conf->dtim_period > 0) 489 params->dtim_period = wpa_s->conf->dtim_period; 490 params->conf.max_peer_links = wpa_s->conf->max_peer_links; 491 if (ssid->mesh_rssi_threshold < DEFAULT_MESH_RSSI_THRESHOLD) { 492 params->conf.rssi_threshold = ssid->mesh_rssi_threshold; 493 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD; 494 } 495 496 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) { 497 params->flags |= WPA_DRIVER_MESH_FLAG_SAE_AUTH; 498 params->flags |= WPA_DRIVER_MESH_FLAG_AMPE; 499 wpa_s->conf->user_mpm = 1; 500 } 501 502 if (wpa_s->conf->user_mpm) { 503 params->flags |= WPA_DRIVER_MESH_FLAG_USER_MPM; 504 params->conf.auto_plinks = 0; 505 } else { 506 params->flags |= WPA_DRIVER_MESH_FLAG_DRIVER_MPM; 507 params->conf.auto_plinks = 1; 508 } 509 params->conf.peer_link_timeout = wpa_s->conf->mesh_max_inactivity; 510 511 os_free(wpa_s->mesh_params); 512 wpa_s->mesh_params = params; 513 if (wpa_supplicant_mesh_init(wpa_s, ssid, ¶ms->freq)) { 514 wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh"); 515 wpa_drv_leave_mesh(wpa_s); 516 ret = -1; 517 goto out; 518 } 519 520 ret = wpas_mesh_complete(wpa_s); 521 out: 522 return ret; 523 } 524 525 526 int wpa_supplicant_leave_mesh(struct wpa_supplicant *wpa_s) 527 { 528 int ret = 0; 529 530 wpa_msg(wpa_s, MSG_INFO, "leaving mesh"); 531 532 /* Need to send peering close messages first */ 533 wpa_supplicant_mesh_deinit(wpa_s); 534 535 ret = wpa_drv_leave_mesh(wpa_s); 536 if (ret) 537 wpa_msg(wpa_s, MSG_ERROR, "mesh leave error=%d", ret); 538 539 wpa_drv_set_operstate(wpa_s, 1); 540 541 return ret; 542 } 543 544 545 static int mesh_attr_text(const u8 *ies, size_t ies_len, char *buf, char *end) 546 { 547 struct ieee802_11_elems elems; 548 char *mesh_id, *pos = buf; 549 u8 *bss_basic_rate_set; 550 int bss_basic_rate_set_len, ret, i; 551 552 if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) == ParseFailed) 553 return -1; 554 555 if (elems.mesh_id_len < 1) 556 return 0; 557 558 mesh_id = os_malloc(elems.mesh_id_len + 1); 559 if (mesh_id == NULL) 560 return -1; 561 562 os_memcpy(mesh_id, elems.mesh_id, elems.mesh_id_len); 563 mesh_id[elems.mesh_id_len] = '\0'; 564 ret = os_snprintf(pos, end - pos, "mesh_id=%s\n", mesh_id); 565 os_free(mesh_id); 566 if (os_snprintf_error(end - pos, ret)) 567 return pos - buf; 568 pos += ret; 569 570 if (elems.mesh_config_len > 6) { 571 ret = os_snprintf(pos, end - pos, 572 "active_path_selection_protocol_id=0x%02x\n" 573 "active_path_selection_metric_id=0x%02x\n" 574 "congestion_control_mode_id=0x%02x\n" 575 "synchronization_method_id=0x%02x\n" 576 "authentication_protocol_id=0x%02x\n" 577 "mesh_formation_info=0x%02x\n" 578 "mesh_capability=0x%02x\n", 579 elems.mesh_config[0], elems.mesh_config[1], 580 elems.mesh_config[2], elems.mesh_config[3], 581 elems.mesh_config[4], elems.mesh_config[5], 582 elems.mesh_config[6]); 583 if (os_snprintf_error(end - pos, ret)) 584 return pos - buf; 585 pos += ret; 586 } 587 588 bss_basic_rate_set = os_malloc(elems.supp_rates_len + 589 elems.ext_supp_rates_len); 590 if (bss_basic_rate_set == NULL) 591 return -1; 592 593 bss_basic_rate_set_len = 0; 594 for (i = 0; i < elems.supp_rates_len; i++) { 595 if (elems.supp_rates[i] & 0x80) { 596 bss_basic_rate_set[bss_basic_rate_set_len++] = 597 (elems.supp_rates[i] & 0x7f) * 5; 598 } 599 } 600 for (i = 0; i < elems.ext_supp_rates_len; i++) { 601 if (elems.ext_supp_rates[i] & 0x80) { 602 bss_basic_rate_set[bss_basic_rate_set_len++] = 603 (elems.ext_supp_rates[i] & 0x7f) * 5; 604 } 605 } 606 if (bss_basic_rate_set_len > 0) { 607 ret = os_snprintf(pos, end - pos, "bss_basic_rate_set=%d", 608 bss_basic_rate_set[0]); 609 if (os_snprintf_error(end - pos, ret)) 610 goto fail; 611 pos += ret; 612 613 for (i = 1; i < bss_basic_rate_set_len; i++) { 614 ret = os_snprintf(pos, end - pos, " %d", 615 bss_basic_rate_set[i]); 616 if (os_snprintf_error(end - pos, ret)) 617 goto fail; 618 pos += ret; 619 } 620 621 ret = os_snprintf(pos, end - pos, "\n"); 622 if (os_snprintf_error(end - pos, ret)) 623 goto fail; 624 pos += ret; 625 } 626 fail: 627 os_free(bss_basic_rate_set); 628 629 return pos - buf; 630 } 631 632 633 int wpas_mesh_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 634 char *end) 635 { 636 return mesh_attr_text(ies, ies_len, buf, end); 637 } 638 639 640 static int wpas_mesh_get_ifname(struct wpa_supplicant *wpa_s, char *ifname, 641 size_t len) 642 { 643 char *ifname_ptr = wpa_s->ifname; 644 int res; 645 646 res = os_snprintf(ifname, len, "mesh-%s-%d", ifname_ptr, 647 wpa_s->mesh_if_idx); 648 if (os_snprintf_error(len, res) || 649 (os_strlen(ifname) >= IFNAMSIZ && 650 os_strlen(wpa_s->ifname) < IFNAMSIZ)) { 651 /* Try to avoid going over the IFNAMSIZ length limit */ 652 res = os_snprintf(ifname, len, "mesh-%d", wpa_s->mesh_if_idx); 653 if (os_snprintf_error(len, res)) 654 return -1; 655 } 656 wpa_s->mesh_if_idx++; 657 return 0; 658 } 659 660 661 int wpas_mesh_add_interface(struct wpa_supplicant *wpa_s, char *ifname, 662 size_t len) 663 { 664 struct wpa_interface iface; 665 struct wpa_supplicant *mesh_wpa_s; 666 u8 addr[ETH_ALEN]; 667 668 if (ifname[0] == '\0' && wpas_mesh_get_ifname(wpa_s, ifname, len) < 0) 669 return -1; 670 671 if (wpa_drv_if_add(wpa_s, WPA_IF_MESH, ifname, NULL, NULL, NULL, addr, 672 NULL) < 0) { 673 wpa_printf(MSG_ERROR, 674 "mesh: Failed to create new mesh interface"); 675 return -1; 676 } 677 wpa_printf(MSG_INFO, "mesh: Created virtual interface %s addr " 678 MACSTR, ifname, MAC2STR(addr)); 679 680 os_memset(&iface, 0, sizeof(iface)); 681 iface.ifname = ifname; 682 iface.driver = wpa_s->driver->name; 683 iface.driver_param = wpa_s->conf->driver_param; 684 iface.ctrl_interface = wpa_s->conf->ctrl_interface; 685 686 mesh_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s); 687 if (!mesh_wpa_s) { 688 wpa_printf(MSG_ERROR, 689 "mesh: Failed to create new wpa_supplicant interface"); 690 wpa_drv_if_remove(wpa_s, WPA_IF_MESH, ifname); 691 return -1; 692 } 693 mesh_wpa_s->mesh_if_created = 1; 694 return 0; 695 } 696 697 698 int wpas_mesh_peer_remove(struct wpa_supplicant *wpa_s, const u8 *addr) 699 { 700 return mesh_mpm_close_peer(wpa_s, addr); 701 } 702 703 704 int wpas_mesh_peer_add(struct wpa_supplicant *wpa_s, const u8 *addr, 705 int duration) 706 { 707 return mesh_mpm_connect_peer(wpa_s, addr, duration); 708 } 709
