wpa_supplicant/mesh.c

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