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_supplicant *wpa_s,
  70                                              struct wpa_ssid *ssid)
  71 {
  72         struct mesh_conf *conf;
  73
  74         conf = os_zalloc(sizeof(struct mesh_conf));
  75         if (!conf)
  76                 return NULL;
  77
  78         os_memcpy(conf->meshid, ssid->ssid, ssid->ssid_len);
  79         conf->meshid_len = ssid->ssid_len;
  80
  81         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE)
  82                 conf->security |= MESH_CONF_SEC_AUTH |
  83                         MESH_CONF_SEC_AMPE;
  84         else
  85                 conf->security |= MESH_CONF_SEC_NONE;
  86         conf->ieee80211w = ssid->ieee80211w;
  87         if (conf->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) {
  88                 if (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)
  89                         conf->ieee80211w = wpa_s->conf->pmf;
  90                 else
  91                         conf->ieee80211w = NO_MGMT_FRAME_PROTECTION;
  92         }
  93
  94         /* defaults */
  95         conf->mesh_pp_id = MESH_PATH_PROTOCOL_HWMP;
  96         conf->mesh_pm_id = MESH_PATH_METRIC_AIRTIME;
  97         conf->mesh_cc_id = 0;
  98         conf->mesh_sp_id = MESH_SYNC_METHOD_NEIGHBOR_OFFSET;
  99         conf->mesh_auth_id = (conf->security & MESH_CONF_SEC_AUTH) ? 1 : 0;
 100         conf->dot11MeshMaxRetries = ssid->dot11MeshMaxRetries;
 101         conf->dot11MeshRetryTimeout = ssid->dot11MeshRetryTimeout;
 102         conf->dot11MeshConfirmTimeout = ssid->dot11MeshConfirmTimeout;
 103         conf->dot11MeshHoldingTimeout = ssid->dot11MeshHoldingTimeout;
 104
 105         return conf;
 106 }
 107
 108
 109 static void wpas_mesh_copy_groups(struct hostapd_data *bss,
 110                                   struct wpa_supplicant *wpa_s)
 111 {
 112         int num_groups;
 113         size_t groups_size;
 114
 115         for (num_groups = 0; wpa_s->conf->sae_groups[num_groups] > 0;
 116              num_groups++)
 117                 ;
 118
 119         groups_size = (num_groups + 1) * sizeof(wpa_s->conf->sae_groups[0]);
 120         bss->conf->sae_groups = os_malloc(groups_size);
 121         if (bss->conf->sae_groups)
 122                 os_memcpy(bss->conf->sae_groups, wpa_s->conf->sae_groups,
 123                           groups_size);
 124 }
 125
 126
 127 static int wpa_supplicant_mesh_init(struct wpa_supplicant *wpa_s,
 128                                     struct wpa_ssid *ssid)
 129 {
 130         struct hostapd_iface *ifmsh;
 131         struct hostapd_data *bss;
 132         struct hostapd_config *conf;
 133         struct mesh_conf *mconf;
 134         int basic_rates_erp[] = { 10, 20, 55, 60, 110, 120, 240, -1 };
 135         static int default_groups[] = { 19, 20, 21, 25, 26, -1 };
 136         size_t len;
 137         int rate_len;
 138
 139         if (!wpa_s->conf->user_mpm) {
 140                 /* not much for us to do here */
 141                 wpa_msg(wpa_s, MSG_WARNING,
 142                         "user_mpm is not enabled in configuration");
 143                 return 0;
 144         }
 145
 146         wpa_s->ifmsh = ifmsh = os_zalloc(sizeof(*wpa_s->ifmsh));
 147         if (!ifmsh)
 148                 return -ENOMEM;
 149
 150         ifmsh->drv_flags = wpa_s->drv_flags;
 151         ifmsh->num_bss = 1;
 152         ifmsh->bss = os_calloc(wpa_s->ifmsh->num_bss,
 153                                sizeof(struct hostapd_data *));
 154         if (!ifmsh->bss)
 155                 goto out_free;
 156
 157         ifmsh->bss[0] = bss = os_zalloc(sizeof(struct hostapd_data));
 158         if (!bss)
 159                 goto out_free;
 160
 161         os_memcpy(bss->own_addr, wpa_s->own_addr, ETH_ALEN);
 162         bss->driver = wpa_s->driver;
 163         bss->drv_priv = wpa_s->drv_priv;
 164         bss->iface = ifmsh;
 165         bss->mesh_sta_free_cb = mesh_mpm_free_sta;
 166         wpa_s->assoc_freq = ssid->frequency;
 167         wpa_s->current_ssid = ssid;
 168
 169         /* setup an AP config for auth processing */
 170         conf = hostapd_config_defaults();
 171         if (!conf)
 172                 goto out_free;
 173
 174         bss->conf = *conf->bss;
 175         bss->conf->start_disabled = 1;
 176         bss->conf->mesh = MESH_ENABLED;
 177         bss->conf->ap_max_inactivity = wpa_s->conf->mesh_max_inactivity;
 178         bss->iconf = conf;
 179         ifmsh->conf = conf;
 180
 181         ifmsh->bss[0]->max_plinks = wpa_s->conf->max_peer_links;
 182         ifmsh->bss[0]->dot11RSNASAERetransPeriod =
 183                 wpa_s->conf->dot11RSNASAERetransPeriod;
 184         os_strlcpy(bss->conf->iface, wpa_s->ifname, sizeof(bss->conf->iface));
 185
 186         mconf = mesh_config_create(wpa_s, ssid);
 187         if (!mconf)
 188                 goto out_free;
 189         ifmsh->mconf = mconf;
 190
 191         /* need conf->hw_mode for supported rates. */
 192         conf->hw_mode = ieee80211_freq_to_chan(ssid->frequency, &conf->channel);
 193         if (conf->hw_mode == NUM_HOSTAPD_MODES) {
 194                 wpa_printf(MSG_ERROR, "Unsupported mesh mode frequency: %d MHz",
 195                            ssid->frequency);
 196                 goto out_free;
 197         }
 198         if (ssid->ht40)
 199                 conf->secondary_channel = ssid->ht40;
 200         if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && ssid->vht) {
 201                 conf->vht_oper_chwidth = ssid->max_oper_chwidth;
 202                 switch (conf->vht_oper_chwidth) {
 203                 case VHT_CHANWIDTH_80MHZ:
 204                 case VHT_CHANWIDTH_80P80MHZ:
 205                         ieee80211_freq_to_chan(
 206                                 ssid->frequency,
 207                                 &conf->vht_oper_centr_freq_seg0_idx);
 208                         conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2;
 209                         break;
 210                 case VHT_CHANWIDTH_160MHZ:
 211                         ieee80211_freq_to_chan(
 212                                 ssid->frequency,
 213                                 &conf->vht_oper_centr_freq_seg0_idx);
 214                         conf->vht_oper_centr_freq_seg0_idx += ssid->ht40 * 2;
 215                         conf->vht_oper_centr_freq_seg0_idx += 40 / 5;
 216                         break;
 217                 }
 218                 ieee80211_freq_to_chan(ssid->vht_center_freq2,
 219                                        &conf->vht_oper_centr_freq_seg1_idx);
 220         }
 221
 222         if (ssid->mesh_basic_rates == NULL) {
 223                 /*
 224                  * XXX: Hack! This is so an MPM which correctly sets the ERP
 225                  * mandatory rates as BSSBasicRateSet doesn't reject us. We
 226                  * could add a new hw_mode HOSTAPD_MODE_IEEE80211G_ERP, but
 227                  * this is way easier. This also makes our BSSBasicRateSet
 228                  * advertised in beacons match the one in peering frames, sigh.
 229                  */
 230                 if (conf->hw_mode == HOSTAPD_MODE_IEEE80211G) {
 231                         conf->basic_rates = os_malloc(sizeof(basic_rates_erp));
 232                         if (!conf->basic_rates)
 233                                 goto out_free;
 234                         os_memcpy(conf->basic_rates, basic_rates_erp,
 235                                   sizeof(basic_rates_erp));
 236                 }
 237         } else {
 238                 rate_len = 0;
 239                 while (1) {
 240                         if (ssid->mesh_basic_rates[rate_len] < 1)
 241                                 break;
 242                         rate_len++;
 243                 }
 244                 conf->basic_rates = os_calloc(rate_len + 1, sizeof(int));
 245                 if (conf->basic_rates == NULL)
 246                         goto out_free;
 247                 os_memcpy(conf->basic_rates, ssid->mesh_basic_rates,
 248                           rate_len * sizeof(int));
 249                 conf->basic_rates[rate_len] = -1;
 250         }
 251
 252         if (hostapd_setup_interface(ifmsh)) {
 253                 wpa_printf(MSG_ERROR,
 254                            "Failed to initialize hostapd interface for mesh");
 255                 return -1;
 256         }
 257
 258         if (wpa_drv_init_mesh(wpa_s)) {
 259                 wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh in driver");
 260                 return -1;
 261         }
 262
 263         if (mconf->security != MESH_CONF_SEC_NONE) {
 264                 if (ssid->passphrase == NULL) {
 265                         wpa_printf(MSG_ERROR,
 266                                    "mesh: Passphrase for SAE not configured");
 267                         goto out_free;
 268                 }
 269
 270                 bss->conf->wpa = ssid->proto;
 271                 bss->conf->wpa_key_mgmt = ssid->key_mgmt;
 272
 273                 if (wpa_s->conf->sae_groups &&
 274                     wpa_s->conf->sae_groups[0] > 0) {
 275                         wpas_mesh_copy_groups(bss, wpa_s);
 276                 } else {
 277                         bss->conf->sae_groups =
 278                                 os_malloc(sizeof(default_groups));
 279                         if (!bss->conf->sae_groups)
 280                                 goto out_free;
 281                         os_memcpy(bss->conf->sae_groups, default_groups,
 282                                   sizeof(default_groups));
 283                 }
 284
 285                 len = os_strlen(ssid->passphrase);
 286                 bss->conf->ssid.wpa_passphrase =
 287                         dup_binstr(ssid->passphrase, len);
 288
 289                 wpa_s->mesh_rsn = mesh_rsn_auth_init(wpa_s, mconf);
 290                 if (!wpa_s->mesh_rsn)
 291                         goto out_free;
 292         }
 293
 294         wpa_supplicant_conf_ap_ht(wpa_s, ssid, conf);
 295
 296         return 0;
 297 out_free:
 298         wpa_supplicant_mesh_deinit(wpa_s);
 299         return -ENOMEM;
 300 }
 301
 302
 303 void wpa_mesh_notify_peer(struct wpa_supplicant *wpa_s, const u8 *addr,
 304                           const u8 *ies, size_t ie_len)
 305 {
 306         struct ieee802_11_elems elems;
 307
 308         wpa_msg(wpa_s, MSG_INFO,
 309                 "new peer notification for " MACSTR, MAC2STR(addr));
 310
 311         if (ieee802_11_parse_elems(ies, ie_len, &elems, 0) == ParseFailed) {
 312                 wpa_msg(wpa_s, MSG_INFO, "Could not parse beacon from " MACSTR,
 313                         MAC2STR(addr));
 314                 return;
 315         }
 316         wpa_mesh_new_mesh_peer(wpa_s, addr, &elems);
 317 }
 318
 319
 320 void wpa_supplicant_mesh_add_scan_ie(struct wpa_supplicant *wpa_s,
 321                                      struct wpabuf **extra_ie)
 322 {
 323         /* EID + 0-length (wildcard) mesh-id */
 324         size_t ielen = 2;
 325
 326         if (wpabuf_resize(extra_ie, ielen) == 0) {
 327                 wpabuf_put_u8(*extra_ie, WLAN_EID_MESH_ID);
 328                 wpabuf_put_u8(*extra_ie, 0);
 329         }
 330 }
 331
 332
 333 int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s,
 334                              struct wpa_ssid *ssid)
 335 {
 336         struct wpa_driver_mesh_join_params params;
 337         int ret = 0;
 338
 339         if (!ssid || !ssid->ssid || !ssid->ssid_len || !ssid->frequency) {
 340                 ret = -ENOENT;
 341                 goto out;
 342         }
 343
 344         wpa_supplicant_mesh_deinit(wpa_s);
 345
 346         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 347                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 348                 wpa_s->group_cipher = WPA_CIPHER_CCMP;
 349                 wpa_s->mgmt_group_cipher = 0;
 350         } else {
 351                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 352                 wpa_s->group_cipher = WPA_CIPHER_NONE;
 353                 wpa_s->mgmt_group_cipher = 0;
 354         }
 355
 356         os_memset(&params, 0, sizeof(params));
 357         params.meshid = ssid->ssid;
 358         params.meshid_len = ssid->ssid_len;
 359         ibss_mesh_setup_freq(wpa_s, ssid, &params.freq);
 360         wpa_s->mesh_ht_enabled = !!params.freq.ht_enabled;
 361         wpa_s->mesh_vht_enabled = !!params.freq.vht_enabled;
 362         if (params.freq.ht_enabled && params.freq.sec_channel_offset)
 363                 ssid->ht40 = params.freq.sec_channel_offset;
 364         if (wpa_s->mesh_vht_enabled) {
 365                 ssid->vht = 1;
 366                 switch (params.freq.bandwidth) {
 367                 case 80:
 368                         if (params.freq.center_freq2) {
 369                                 ssid->max_oper_chwidth = VHT_CHANWIDTH_80P80MHZ;
 370                                 ssid->vht_center_freq2 =
 371                                         params.freq.center_freq2;
 372                         } else {
 373                                 ssid->max_oper_chwidth = VHT_CHANWIDTH_80MHZ;
 374                         }
 375                         break;
 376                 case 160:
 377                         ssid->max_oper_chwidth = VHT_CHANWIDTH_160MHZ;
 378                         break;
 379                 default:
 380                         ssid->max_oper_chwidth = VHT_CHANWIDTH_USE_HT;
 381                         break;
 382                 }
 383         }
 384         if (ssid->beacon_int > 0)
 385                 params.beacon_int = ssid->beacon_int;
 386         else if (wpa_s->conf->beacon_int > 0)
 387                 params.beacon_int = wpa_s->conf->beacon_int;
 388         params.max_peer_links = wpa_s->conf->max_peer_links;
 389
 390         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 391                 params.flags |= WPA_DRIVER_MESH_FLAG_SAE_AUTH;
 392                 params.flags |= WPA_DRIVER_MESH_FLAG_AMPE;
 393                 wpa_s->conf->user_mpm = 1;
 394         }
 395
 396         if (wpa_s->conf->user_mpm) {
 397                 params.flags |= WPA_DRIVER_MESH_FLAG_USER_MPM;
 398                 params.conf.flags &= ~WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS;
 399         } else {
 400                 params.flags |= WPA_DRIVER_MESH_FLAG_DRIVER_MPM;
 401                 params.conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS;
 402         }
 403         params.conf.peer_link_timeout = wpa_s->conf->mesh_max_inactivity;
 404
 405         if (wpa_supplicant_mesh_init(wpa_s, ssid)) {
 406                 wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh");
 407                 wpa_drv_leave_mesh(wpa_s);
 408                 ret = -1;
 409                 goto out;
 410         }
 411
 412         if (wpa_s->ifmsh) {
 413                 params.ies = wpa_s->ifmsh->mconf->rsn_ie;
 414                 params.ie_len = wpa_s->ifmsh->mconf->rsn_ie_len;
 415                 params.basic_rates = wpa_s->ifmsh->basic_rates;
 416         }
 417
 418         wpa_msg(wpa_s, MSG_INFO, "joining mesh %s",
 419                 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 420         ret = wpa_drv_join_mesh(wpa_s, &params);
 421         if (ret)
 422                 wpa_msg(wpa_s, MSG_ERROR, "mesh join error=%d", ret);
 423
 424         /* hostapd sets the interface down until we associate */
 425         wpa_drv_set_operstate(wpa_s, 1);
 426
 427 out:
 428         return ret;
 429 }
 430
 431
 432 int wpa_supplicant_leave_mesh(struct wpa_supplicant *wpa_s)
 433 {
 434         int ret = 0;
 435
 436         wpa_msg(wpa_s, MSG_INFO, "leaving mesh");
 437
 438         /* Need to send peering close messages first */
 439         wpa_supplicant_mesh_deinit(wpa_s);
 440
 441         ret = wpa_drv_leave_mesh(wpa_s);
 442         if (ret)
 443                 wpa_msg(wpa_s, MSG_ERROR, "mesh leave error=%d", ret);
 444
 445         wpa_drv_set_operstate(wpa_s, 1);
 446
 447         return ret;
 448 }
 449
 450
 451 static int mesh_attr_text(const u8 *ies, size_t ies_len, char *buf, char *end)
 452 {
 453         struct ieee802_11_elems elems;
 454         char *mesh_id, *pos = buf;
 455         u8 *bss_basic_rate_set;
 456         int bss_basic_rate_set_len, ret, i;
 457
 458         if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) == ParseFailed)
 459                 return -1;
 460
 461         if (elems.mesh_id_len < 1)
 462                 return 0;
 463
 464         mesh_id = os_malloc(elems.mesh_id_len + 1);
 465         if (mesh_id == NULL)
 466                 return -1;
 467
 468         os_memcpy(mesh_id, elems.mesh_id, elems.mesh_id_len);
 469         mesh_id[elems.mesh_id_len] = '\0';
 470         ret = os_snprintf(pos, end - pos, "mesh_id=%s\n", mesh_id);
 471         os_free(mesh_id);
 472         if (os_snprintf_error(end - pos, ret))
 473                 return pos - buf;
 474         pos += ret;
 475
 476         if (elems.mesh_config_len > 6) {
 477                 ret = os_snprintf(pos, end - pos,
 478                                   "active_path_selection_protocol_id=0x%02x\n"
 479                                   "active_path_selection_metric_id=0x%02x\n"
 480                                   "congestion_control_mode_id=0x%02x\n"
 481                                   "synchronization_method_id=0x%02x\n"
 482                                   "authentication_protocol_id=0x%02x\n"
 483                                   "mesh_formation_info=0x%02x\n"
 484                                   "mesh_capability=0x%02x\n",
 485                                   elems.mesh_config[0], elems.mesh_config[1],
 486                                   elems.mesh_config[2], elems.mesh_config[3],
 487                                   elems.mesh_config[4], elems.mesh_config[5],
 488                                   elems.mesh_config[6]);
 489                 if (os_snprintf_error(end - pos, ret))
 490                         return pos - buf;
 491                 pos += ret;
 492         }
 493
 494         bss_basic_rate_set = os_malloc(elems.supp_rates_len +
 495                 elems.ext_supp_rates_len);
 496         if (bss_basic_rate_set == NULL)
 497                 return -1;
 498
 499         bss_basic_rate_set_len = 0;
 500         for (i = 0; i < elems.supp_rates_len; i++) {
 501                 if (elems.supp_rates[i] & 0x80) {
 502                         bss_basic_rate_set[bss_basic_rate_set_len++] =
 503                                 (elems.supp_rates[i] & 0x7f) * 5;
 504                 }
 505         }
 506         for (i = 0; i < elems.ext_supp_rates_len; i++) {
 507                 if (elems.ext_supp_rates[i] & 0x80) {
 508                         bss_basic_rate_set[bss_basic_rate_set_len++] =
 509                                 (elems.ext_supp_rates[i] & 0x7f) * 5;
 510                 }
 511         }
 512         if (bss_basic_rate_set_len > 0) {
 513                 ret = os_snprintf(pos, end - pos, "bss_basic_rate_set=%d",
 514                                   bss_basic_rate_set[0]);
 515                 if (os_snprintf_error(end - pos, ret))
 516                         goto fail;
 517                 pos += ret;
 518
 519                 for (i = 1; i < bss_basic_rate_set_len; i++) {
 520                         ret = os_snprintf(pos, end - pos, " %d",
 521                                           bss_basic_rate_set[i]);
 522                         if (os_snprintf_error(end - pos, ret))
 523                                 goto fail;
 524                         pos += ret;
 525                 }
 526
 527                 ret = os_snprintf(pos, end - pos, "\n");
 528                 if (os_snprintf_error(end - pos, ret))
 529                         goto fail;
 530                 pos += ret;
 531         }
 532 fail:
 533         os_free(bss_basic_rate_set);
 534
 535         return pos - buf;
 536 }
 537
 538
 539 int wpas_mesh_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
 540                                char *end)
 541 {
 542         return mesh_attr_text(ies, ies_len, buf, end);
 543 }
 544
 545
 546 static int wpas_mesh_get_ifname(struct wpa_supplicant *wpa_s, char *ifname,
 547                                 size_t len)
 548 {
 549         char *ifname_ptr = wpa_s->ifname;
 550         int res;
 551
 552         res = os_snprintf(ifname, len, "mesh-%s-%d", ifname_ptr,
 553                           wpa_s->mesh_if_idx);
 554         if (os_snprintf_error(len, res) ||
 555             (os_strlen(ifname) >= IFNAMSIZ &&
 556              os_strlen(wpa_s->ifname) < IFNAMSIZ)) {
 557                 /* Try to avoid going over the IFNAMSIZ length limit */
 558                 res = os_snprintf(ifname, len, "mesh-%d", wpa_s->mesh_if_idx);
 559                 if (os_snprintf_error(len, res))
 560                         return -1;
 561         }
 562         wpa_s->mesh_if_idx++;
 563         return 0;
 564 }
 565
 566
 567 int wpas_mesh_add_interface(struct wpa_supplicant *wpa_s, char *ifname,
 568                             size_t len)
 569 {
 570         struct wpa_interface iface;
 571         struct wpa_supplicant *mesh_wpa_s;
 572         u8 addr[ETH_ALEN];
 573
 574         if (ifname[0] == '\0' && wpas_mesh_get_ifname(wpa_s, ifname, len) < 0)
 575                 return -1;
 576
 577         if (wpa_drv_if_add(wpa_s, WPA_IF_MESH, ifname, NULL, NULL, NULL, addr,
 578                            NULL) < 0) {
 579                 wpa_printf(MSG_ERROR,
 580                            "mesh: Failed to create new mesh interface");
 581                 return -1;
 582         }
 583         wpa_printf(MSG_INFO, "mesh: Created virtual interface %s addr "
 584                    MACSTR, ifname, MAC2STR(addr));
 585
 586         os_memset(&iface, 0, sizeof(iface));
 587         iface.ifname = ifname;
 588         iface.driver = wpa_s->driver->name;
 589         iface.driver_param = wpa_s->conf->driver_param;
 590         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
 591
 592         mesh_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
 593         if (!mesh_wpa_s) {
 594                 wpa_printf(MSG_ERROR,
 595                            "mesh: Failed to create new wpa_supplicant interface");
 596                 wpa_drv_if_remove(wpa_s, WPA_IF_MESH, ifname);
 597                 return -1;
 598         }
 599         mesh_wpa_s->mesh_if_created = 1;
 600         return 0;
 601 }
 602
 603
 604 int wpas_mesh_peer_remove(struct wpa_supplicant *wpa_s, const u8 *addr)
 605 {
 606         return mesh_mpm_close_peer(wpa_s, addr);
 607 }
 608
 609
 610 int wpas_mesh_peer_add(struct wpa_supplicant *wpa_s, const u8 *addr,
 611                        int duration)
 612 {
 613         return mesh_mpm_connect_peer(wpa_s, addr, duration);
 614 }