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 30static 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 44void 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 71static 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 137static 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 155static 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 193static 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 wpa_drv_leave_mesh(wpa_s); 212 return -1; 213 } 214 215 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) { 216 wpa_s->pairwise_cipher = wpa_s->mesh_rsn->pairwise_cipher; 217 wpa_s->group_cipher = wpa_s->mesh_rsn->group_cipher; 218 wpa_s->mgmt_group_cipher = wpa_s->mesh_rsn->mgmt_group_cipher; 219 } 220 221 params->ies = ifmsh->mconf->rsn_ie; 222 params->ie_len = ifmsh->mconf->rsn_ie_len; 223 params->basic_rates = ifmsh->basic_rates; 224 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE; 225 params->conf.ht_opmode = ifmsh->bss[0]->iface->ht_op_mode; 226 227 wpa_msg(wpa_s, MSG_INFO, "joining mesh %s", 228 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 229 ret = wpa_drv_join_mesh(wpa_s, params); 230 if (ret) 231 wpa_msg(wpa_s, MSG_ERROR, "mesh join error=%d", ret); 232 233 /* hostapd sets the interface down until we associate */ 234 wpa_drv_set_operstate(wpa_s, 1); 235 236 if (!ret) 237 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 238 239 return ret; 240} 241 242 243static int wpa_supplicant_mesh_init(struct wpa_supplicant *wpa_s, 244 struct wpa_ssid *ssid, 245 struct hostapd_freq_params *freq) 246{ 247 struct hostapd_iface *ifmsh; 248 struct hostapd_data *bss; 249 struct hostapd_config *conf; 250 struct mesh_conf *mconf; 251 int basic_rates_erp[] = { 10, 20, 55, 60, 110, 120, 240, -1 }; 252 int rate_len; 253 int frequency; 254 255 if (!wpa_s->conf->user_mpm) { 256 /* not much for us to do here */ 257 wpa_msg(wpa_s, MSG_WARNING, 258 "user_mpm is not enabled in configuration"); 259 return 0; 260 } 261 262 wpa_s->ifmsh = ifmsh = hostapd_alloc_iface(); 263 if (!ifmsh) 264 return -ENOMEM; 265 266 ifmsh->drv_flags = wpa_s->drv_flags; 267 ifmsh->num_bss = 1; 268 ifmsh->bss = os_calloc(wpa_s->ifmsh->num_bss, 269 sizeof(struct hostapd_data *)); 270 if (!ifmsh->bss) 271 goto out_free; 272 273 ifmsh->bss[0] = bss = hostapd_alloc_bss_data(NULL, NULL, NULL); 274 if (!bss) 275 goto out_free; 276 277 ifmsh->bss[0]->msg_ctx = wpa_s; 278 os_memcpy(bss->own_addr, wpa_s->own_addr, ETH_ALEN); 279 bss->driver = wpa_s->driver; 280 bss->drv_priv = wpa_s->drv_priv; 281 bss->iface = ifmsh; 282 bss->mesh_sta_free_cb = mesh_mpm_free_sta; 283 frequency = ssid->frequency; 284 if (frequency != freq->freq && 285 frequency == freq->freq + freq->sec_channel_offset * 20) { 286 wpa_printf(MSG_DEBUG, "mesh: pri/sec channels switched"); 287 frequency = freq->freq; 288 } 289 wpa_s->assoc_freq = frequency; 290 wpa_s->current_ssid = ssid; 291 292 /* setup an AP config for auth processing */ 293 conf = hostapd_config_defaults(); 294 if (!conf) 295 goto out_free; 296 297 bss->conf = *conf->bss; 298 bss->conf->start_disabled = 1; 299 bss->conf->mesh = MESH_ENABLED; 300 bss->conf->ap_max_inactivity = wpa_s->conf->mesh_max_inactivity; 301 302 if (ieee80211_is_dfs(ssid->frequency, wpa_s->hw.modes, 303 wpa_s->hw.num_modes) && wpa_s->conf->country[0]) { 304 conf->ieee80211h = 1; 305 conf->ieee80211d = 1; 306 conf->country[0] = wpa_s->conf->country[0]; 307 conf->country[1] = wpa_s->conf->country[1]; 308 conf->country[2] = ' '; 309 } 310 311 bss->iconf = conf; 312 ifmsh->conf = conf; 313 314 ifmsh->bss[0]->max_plinks = wpa_s->conf->max_peer_links; 315 ifmsh->bss[0]->dot11RSNASAERetransPeriod = 316 wpa_s->conf->dot11RSNASAERetransPeriod; 317 os_strlcpy(bss->conf->iface, wpa_s->ifname, sizeof(bss->conf->iface)); 318 319 mconf = mesh_config_create(wpa_s, ssid); 320 if (!mconf) 321 goto out_free; 322 ifmsh->mconf = mconf; 323 324 /* need conf->hw_mode for supported rates. */ 325 conf->hw_mode = ieee80211_freq_to_chan(frequency, &conf->channel); 326 if (conf->hw_mode == NUM_HOSTAPD_MODES) { 327 wpa_printf(MSG_ERROR, "Unsupported mesh mode frequency: %d MHz", 328 frequency); 329 goto out_free; 330 } 331 if (ssid->ht40) 332 conf->secondary_channel = ssid->ht40; 333 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && ssid->vht) { 334 if (ssid->max_oper_chwidth != DEFAULT_MAX_OPER_CHWIDTH) 335 conf->vht_oper_chwidth = ssid->max_oper_chwidth; 336 switch (conf->vht_oper_chwidth) { 337 case CHANWIDTH_80MHZ: 338 case CHANWIDTH_80P80MHZ: 339 ieee80211_freq_to_chan( 340 frequency, 341 &conf->vht_oper_centr_freq_seg0_idx); 342 conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2; 343 break; 344 case CHANWIDTH_160MHZ: 345 ieee80211_freq_to_chan( 346 frequency, 347 &conf->vht_oper_centr_freq_seg0_idx); 348 conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2; 349 conf->vht_oper_centr_freq_seg0_idx += 40 / 5; 350 break; 351 } 352 ieee80211_freq_to_chan(ssid->vht_center_freq2, 353 &conf->vht_oper_centr_freq_seg1_idx); 354 } 355 356 if (ssid->mesh_basic_rates == NULL) { 357 /* 358 * XXX: Hack! This is so an MPM which correctly sets the ERP 359 * mandatory rates as BSSBasicRateSet doesn't reject us. We 360 * could add a new hw_mode HOSTAPD_MODE_IEEE80211G_ERP, but 361 * this is way easier. This also makes our BSSBasicRateSet 362 * advertised in beacons match the one in peering frames, sigh. 363 */ 364 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) { 365 conf->basic_rates = os_memdup(basic_rates_erp, 366 sizeof(basic_rates_erp)); 367 if (!conf->basic_rates) 368 goto out_free; 369 } 370 } else { 371 rate_len = 0; 372 while (1) { 373 if (ssid->mesh_basic_rates[rate_len] < 1) 374 break; 375 rate_len++; 376 } 377 conf->basic_rates = os_calloc(rate_len + 1, sizeof(int)); 378 if (conf->basic_rates == NULL) 379 goto out_free; 380 os_memcpy(conf->basic_rates, ssid->mesh_basic_rates, 381 rate_len * sizeof(int)); 382 conf->basic_rates[rate_len] = -1; 383 } 384 385 if (wpa_drv_init_mesh(wpa_s)) { 386 wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh in driver"); 387 return -1; 388 } 389 390 if (hostapd_setup_interface(ifmsh)) { 391 wpa_printf(MSG_ERROR, 392 "Failed to initialize hostapd interface for mesh"); 393 return -1; 394 } 395 396 wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf); 397 398 return 0; 399out_free: 400 wpa_supplicant_mesh_deinit(wpa_s); 401 return -ENOMEM; 402} 403 404 405void wpa_mesh_notify_peer(struct wpa_supplicant *wpa_s, const u8 *addr, 406 const u8 *ies, size_t ie_len) 407{ 408 struct ieee802_11_elems elems; 409 410 wpa_msg(wpa_s, MSG_INFO, 411 "new peer notification for " MACSTR, MAC2STR(addr)); 412 413 if (ieee802_11_parse_elems(ies, ie_len, &elems, 0) == ParseFailed) { 414 wpa_msg(wpa_s, MSG_INFO, "Could not parse beacon from " MACSTR, 415 MAC2STR(addr)); 416 return; 417 } 418 wpa_mesh_new_mesh_peer(wpa_s, addr, &elems); 419} 420 421 422void wpa_supplicant_mesh_add_scan_ie(struct wpa_supplicant *wpa_s, 423 struct wpabuf **extra_ie) 424{ 425 /* EID + 0-length (wildcard) mesh-id */ 426 size_t ielen = 2; 427 428 if (wpabuf_resize(extra_ie, ielen) == 0) { 429 wpabuf_put_u8(*extra_ie, WLAN_EID_MESH_ID); 430 wpabuf_put_u8(*extra_ie, 0); 431 } 432} 433 434 435int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s, 436 struct wpa_ssid *ssid) 437{ 438 struct wpa_driver_mesh_join_params *params = os_zalloc(sizeof(*params)); 439 int ret = 0; 440 441 if (!ssid || !ssid->ssid || !ssid->ssid_len || !ssid->frequency || 442 !params) { 443 ret = -ENOENT; 444 os_free(params); 445 goto out; 446 } 447 448 wpa_supplicant_mesh_deinit(wpa_s); 449 450 wpa_s->pairwise_cipher = WPA_CIPHER_NONE; 451 wpa_s->group_cipher = WPA_CIPHER_NONE; 452 wpa_s->mgmt_group_cipher = 0; 453 454 params->meshid = ssid->ssid; 455 params->meshid_len = ssid->ssid_len; 456 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms->freq); 457 wpa_s->mesh_ht_enabled = !!params->freq.ht_enabled; 458 wpa_s->mesh_vht_enabled = !!params->freq.vht_enabled; 459 wpa_s->mesh_he_enabled = !!params->freq.he_enabled; 460 if (params->freq.ht_enabled && params->freq.sec_channel_offset) 461 ssid->ht40 = params->freq.sec_channel_offset; 462 463 if (wpa_s->mesh_vht_enabled) { 464 ssid->vht = 1; 465 ssid->vht_center_freq1 = params->freq.center_freq1; 466 switch (params->freq.bandwidth) { 467 case 80: 468 if (params->freq.center_freq2) { 469 ssid->max_oper_chwidth = CHANWIDTH_80P80MHZ; 470 ssid->vht_center_freq2 = 471 params->freq.center_freq2; 472 } else { 473 ssid->max_oper_chwidth = CHANWIDTH_80MHZ; 474 } 475 break; 476 case 160: 477 ssid->max_oper_chwidth = CHANWIDTH_160MHZ; 478 break; 479 default: 480 ssid->max_oper_chwidth = CHANWIDTH_USE_HT; 481 break; 482 } 483 } 484 if (wpa_s->mesh_he_enabled) 485 ssid->he = 1; 486 if (ssid->beacon_int > 0) 487 params->beacon_int = ssid->beacon_int; 488 else if (wpa_s->conf->beacon_int > 0) 489 params->beacon_int = wpa_s->conf->beacon_int; 490 if (ssid->dtim_period > 0) 491 params->dtim_period = ssid->dtim_period; 492 else if (wpa_s->conf->dtim_period > 0) 493 params->dtim_period = wpa_s->conf->dtim_period; 494 params->conf.max_peer_links = wpa_s->conf->max_peer_links; 495 if (ssid->mesh_rssi_threshold < DEFAULT_MESH_RSSI_THRESHOLD) { 496 params->conf.rssi_threshold = ssid->mesh_rssi_threshold; 497 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD; 498 } 499 500 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) { 501 params->flags |= WPA_DRIVER_MESH_FLAG_SAE_AUTH; 502 params->flags |= WPA_DRIVER_MESH_FLAG_AMPE; 503 wpa_s->conf->user_mpm = 1; 504 } 505 506 if (wpa_s->conf->user_mpm) { 507 params->flags |= WPA_DRIVER_MESH_FLAG_USER_MPM; 508 params->conf.auto_plinks = 0; 509 } else { 510 params->flags |= WPA_DRIVER_MESH_FLAG_DRIVER_MPM; 511 params->conf.auto_plinks = 1; 512 } 513 params->conf.peer_link_timeout = wpa_s->conf->mesh_max_inactivity; 514 515 os_free(wpa_s->mesh_params); 516 wpa_s->mesh_params = params; 517 if (wpa_supplicant_mesh_init(wpa_s, ssid, ¶ms->freq)) { 518 wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh"); 519 wpa_drv_leave_mesh(wpa_s); 520 ret = -1; 521 goto out; 522 } 523 524 ret = wpas_mesh_complete(wpa_s); 525out: 526 return ret; 527} 528 529 530int wpa_supplicant_leave_mesh(struct wpa_supplicant *wpa_s) 531{ 532 int ret = 0; 533 534 wpa_msg(wpa_s, MSG_INFO, "leaving mesh"); 535 536 /* Need to send peering close messages first */ 537 wpa_supplicant_mesh_deinit(wpa_s); 538 539 ret = wpa_drv_leave_mesh(wpa_s); 540 if (ret) 541 wpa_msg(wpa_s, MSG_ERROR, "mesh leave error=%d", ret); 542 543 wpa_drv_set_operstate(wpa_s, 1); 544 545 return ret; 546} 547 548 549static int mesh_attr_text(const u8 *ies, size_t ies_len, char *buf, char *end) 550{ 551 struct ieee802_11_elems elems; 552 char *mesh_id, *pos = buf; 553 u8 *bss_basic_rate_set; 554 int bss_basic_rate_set_len, ret, i; 555 556 if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) == ParseFailed) 557 return -1; 558 559 if (elems.mesh_id_len < 1) 560 return 0; 561 562 mesh_id = os_malloc(elems.mesh_id_len + 1); 563 if (mesh_id == NULL) 564 return -1; 565 566 os_memcpy(mesh_id, elems.mesh_id, elems.mesh_id_len); 567 mesh_id[elems.mesh_id_len] = '\0'; 568 ret = os_snprintf(pos, end - pos, "mesh_id=%s\n", mesh_id); 569 os_free(mesh_id); 570 if (os_snprintf_error(end - pos, ret)) 571 return pos - buf; 572 pos += ret; 573 574 if (elems.mesh_config_len > 6) { 575 ret = os_snprintf(pos, end - pos, 576 "active_path_selection_protocol_id=0x%02x\n" 577 "active_path_selection_metric_id=0x%02x\n" 578 "congestion_control_mode_id=0x%02x\n" 579 "synchronization_method_id=0x%02x\n" 580 "authentication_protocol_id=0x%02x\n" 581 "mesh_formation_info=0x%02x\n" 582 "mesh_capability=0x%02x\n", 583 elems.mesh_config[0], elems.mesh_config[1], 584 elems.mesh_config[2], elems.mesh_config[3], 585 elems.mesh_config[4], elems.mesh_config[5], 586 elems.mesh_config[6]); 587 if (os_snprintf_error(end - pos, ret)) 588 return pos - buf; 589 pos += ret; 590 } 591 592 bss_basic_rate_set = os_malloc(elems.supp_rates_len + 593 elems.ext_supp_rates_len); 594 if (bss_basic_rate_set == NULL) 595 return -1; 596 597 bss_basic_rate_set_len = 0; 598 for (i = 0; i < elems.supp_rates_len; i++) { 599 if (elems.supp_rates[i] & 0x80) { 600 bss_basic_rate_set[bss_basic_rate_set_len++] = 601 (elems.supp_rates[i] & 0x7f) * 5; 602 } 603 } 604 for (i = 0; i < elems.ext_supp_rates_len; i++) { 605 if (elems.ext_supp_rates[i] & 0x80) { 606 bss_basic_rate_set[bss_basic_rate_set_len++] = 607 (elems.ext_supp_rates[i] & 0x7f) * 5; 608 } 609 } 610 if (bss_basic_rate_set_len > 0) { 611 ret = os_snprintf(pos, end - pos, "bss_basic_rate_set=%d", 612 bss_basic_rate_set[0]); 613 if (os_snprintf_error(end - pos, ret)) 614 goto fail; 615 pos += ret; 616 617 for (i = 1; i < bss_basic_rate_set_len; i++) { 618 ret = os_snprintf(pos, end - pos, " %d", 619 bss_basic_rate_set[i]); 620 if (os_snprintf_error(end - pos, ret)) 621 goto fail; 622 pos += ret; 623 } 624 625 ret = os_snprintf(pos, end - pos, "\n"); 626 if (os_snprintf_error(end - pos, ret)) 627 goto fail; 628 pos += ret; 629 } 630fail: 631 os_free(bss_basic_rate_set); 632 633 return pos - buf; 634} 635 636 637int wpas_mesh_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 638 char *end) 639{ 640 return mesh_attr_text(ies, ies_len, buf, end); 641} 642 643 644static int wpas_mesh_get_ifname(struct wpa_supplicant *wpa_s, char *ifname, 645 size_t len) 646{ 647 char *ifname_ptr = wpa_s->ifname; 648 int res; 649 650 res = os_snprintf(ifname, len, "mesh-%s-%d", ifname_ptr, 651 wpa_s->mesh_if_idx); 652 if (os_snprintf_error(len, res) || 653 (os_strlen(ifname) >= IFNAMSIZ && 654 os_strlen(wpa_s->ifname) < IFNAMSIZ)) { 655 /* Try to avoid going over the IFNAMSIZ length limit */ 656 res = os_snprintf(ifname, len, "mesh-%d", wpa_s->mesh_if_idx); 657 if (os_snprintf_error(len, res)) 658 return -1; 659 } 660 wpa_s->mesh_if_idx++; 661 return 0; 662} 663 664 665int wpas_mesh_add_interface(struct wpa_supplicant *wpa_s, char *ifname, 666 size_t len) 667{ 668 struct wpa_interface iface; 669 struct wpa_supplicant *mesh_wpa_s; 670 u8 addr[ETH_ALEN]; 671 672 if (ifname[0] == '\0' && wpas_mesh_get_ifname(wpa_s, ifname, len) < 0) 673 return -1; 674 675 if (wpa_drv_if_add(wpa_s, WPA_IF_MESH, ifname, NULL, NULL, NULL, addr, 676 NULL) < 0) { 677 wpa_printf(MSG_ERROR, 678 "mesh: Failed to create new mesh interface"); 679 return -1; 680 } 681 wpa_printf(MSG_INFO, "mesh: Created virtual interface %s addr " 682 MACSTR, ifname, MAC2STR(addr)); 683 684 os_memset(&iface, 0, sizeof(iface)); 685 iface.ifname = ifname; 686 iface.driver = wpa_s->driver->name; 687 iface.driver_param = wpa_s->conf->driver_param; 688 iface.ctrl_interface = wpa_s->conf->ctrl_interface; 689 690 mesh_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s); 691 if (!mesh_wpa_s) { 692 wpa_printf(MSG_ERROR, 693 "mesh: Failed to create new wpa_supplicant interface"); 694 wpa_drv_if_remove(wpa_s, WPA_IF_MESH, ifname); 695 return -1; 696 } 697 mesh_wpa_s->mesh_if_created = 1; 698 return 0; 699} 700 701 702int wpas_mesh_peer_remove(struct wpa_supplicant *wpa_s, const u8 *addr) 703{ 704 return mesh_mpm_close_peer(wpa_s, addr); 705} 706 707 708int wpas_mesh_peer_add(struct wpa_supplicant *wpa_s, const u8 *addr, 709 int duration) 710{ 711 return mesh_mpm_connect_peer(wpa_s, addr, duration); 712} 713