src/ap/ieee802_11_shared.c

   1 /*
   2  * hostapd / IEEE 802.11 Management
   3  * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
   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 "common/ieee802_11_defs.h"
  13 #include "hostapd.h"
  14 #include "sta_info.h"
  15 #include "ap_config.h"
  16 #include "ap_drv_ops.h"
  17 #include "ieee802_11.h"
  18
  19
  20 #ifdef CONFIG_IEEE80211W
  21
  22 u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
  23                                      struct sta_info *sta, u8 *eid)
  24 {
  25         u8 *pos = eid;
  26         u32 timeout, tu;
  27         struct os_reltime now, passed;
  28
  29         *pos++ = WLAN_EID_TIMEOUT_INTERVAL;
  30         *pos++ = 5;
  31         *pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK;
  32         os_get_reltime(&now);
  33         os_reltime_sub(&now, &sta->sa_query_start, &passed);
  34         tu = (passed.sec * 1000000 + passed.usec) / 1024;
  35         if (hapd->conf->assoc_sa_query_max_timeout > tu)
  36                 timeout = hapd->conf->assoc_sa_query_max_timeout - tu;
  37         else
  38                 timeout = 0;
  39         if (timeout < hapd->conf->assoc_sa_query_max_timeout)
  40                 timeout++; /* add some extra time for local timers */
  41         WPA_PUT_LE32(pos, timeout);
  42         pos += 4;
  43
  44         return pos;
  45 }
  46
  47
  48 /* MLME-SAQuery.request */
  49 void ieee802_11_send_sa_query_req(struct hostapd_data *hapd,
  50                                   const u8 *addr, const u8 *trans_id)
  51 {
  52         struct ieee80211_mgmt mgmt;
  53         u8 *end;
  54
  55         wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Request to "
  56                    MACSTR, MAC2STR(addr));
  57         wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
  58                     trans_id, WLAN_SA_QUERY_TR_ID_LEN);
  59
  60         os_memset(&mgmt, 0, sizeof(mgmt));
  61         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
  62                                           WLAN_FC_STYPE_ACTION);
  63         os_memcpy(mgmt.da, addr, ETH_ALEN);
  64         os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
  65         os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
  66         mgmt.u.action.category = WLAN_ACTION_SA_QUERY;
  67         mgmt.u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST;
  68         os_memcpy(mgmt.u.action.u.sa_query_req.trans_id, trans_id,
  69                   WLAN_SA_QUERY_TR_ID_LEN);
  70         end = mgmt.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN;
  71         if (hostapd_drv_send_mlme(hapd, &mgmt, end - (u8 *) &mgmt, 0) < 0)
  72                 wpa_printf(MSG_INFO, "ieee802_11_send_sa_query_req: send failed");
  73 }
  74
  75
  76 static void ieee802_11_send_sa_query_resp(struct hostapd_data *hapd,
  77                                           const u8 *sa, const u8 *trans_id)
  78 {
  79         struct sta_info *sta;
  80         struct ieee80211_mgmt resp;
  81         u8 *end;
  82
  83         wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Request from "
  84                    MACSTR, MAC2STR(sa));
  85         wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
  86                     trans_id, WLAN_SA_QUERY_TR_ID_LEN);
  87
  88         sta = ap_get_sta(hapd, sa);
  89         if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) {
  90                 wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignore SA Query Request "
  91                            "from unassociated STA " MACSTR, MAC2STR(sa));
  92                 return;
  93         }
  94
  95         wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Response to "
  96                    MACSTR, MAC2STR(sa));
  97
  98         os_memset(&resp, 0, sizeof(resp));
  99         resp.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
 100                                           WLAN_FC_STYPE_ACTION);
 101         os_memcpy(resp.da, sa, ETH_ALEN);
 102         os_memcpy(resp.sa, hapd->own_addr, ETH_ALEN);
 103         os_memcpy(resp.bssid, hapd->own_addr, ETH_ALEN);
 104         resp.u.action.category = WLAN_ACTION_SA_QUERY;
 105         resp.u.action.u.sa_query_req.action = WLAN_SA_QUERY_RESPONSE;
 106         os_memcpy(resp.u.action.u.sa_query_req.trans_id, trans_id,
 107                   WLAN_SA_QUERY_TR_ID_LEN);
 108         end = resp.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN;
 109         if (hostapd_drv_send_mlme(hapd, &resp, end - (u8 *) &resp, 0) < 0)
 110                 wpa_printf(MSG_INFO, "ieee80211_mgmt_sa_query_request: send failed");
 111 }
 112
 113
 114 void ieee802_11_sa_query_action(struct hostapd_data *hapd, const u8 *sa,
 115                                 const u8 action_type, const u8 *trans_id)
 116 {
 117         struct sta_info *sta;
 118         int i;
 119
 120         if (action_type == WLAN_SA_QUERY_REQUEST) {
 121                 ieee802_11_send_sa_query_resp(hapd, sa, trans_id);
 122                 return;
 123         }
 124
 125         if (action_type != WLAN_SA_QUERY_RESPONSE) {
 126                 wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected SA Query "
 127                            "Action %d", action_type);
 128                 return;
 129         }
 130
 131         wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Response from "
 132                    MACSTR, MAC2STR(sa));
 133         wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
 134                     trans_id, WLAN_SA_QUERY_TR_ID_LEN);
 135
 136         /* MLME-SAQuery.confirm */
 137
 138         sta = ap_get_sta(hapd, sa);
 139         if (sta == NULL || sta->sa_query_trans_id == NULL) {
 140                 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with "
 141                            "pending SA Query request found");
 142                 return;
 143         }
 144
 145         for (i = 0; i < sta->sa_query_count; i++) {
 146                 if (os_memcmp(sta->sa_query_trans_id +
 147                               i * WLAN_SA_QUERY_TR_ID_LEN,
 148                               trans_id, WLAN_SA_QUERY_TR_ID_LEN) == 0)
 149                         break;
 150         }
 151
 152         if (i >= sta->sa_query_count) {
 153                 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching SA Query "
 154                            "transaction identifier found");
 155                 return;
 156         }
 157
 158         hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 159                        HOSTAPD_LEVEL_DEBUG,
 160                        "Reply to pending SA Query received");
 161         ap_sta_stop_sa_query(hapd, sta);
 162 }
 163
 164 #endif /* CONFIG_IEEE80211W */
 165
 166
 167 static void hostapd_ext_capab_byte(struct hostapd_data *hapd, u8 *pos, int idx)
 168 {
 169         *pos = 0x00;
 170
 171         switch (idx) {
 172         case 0: /* Bits 0-7 */
 173                 if (hapd->iconf->obss_interval)
 174                         *pos |= 0x01; /* Bit 0 - Coexistence management */
 175                 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)
 176                         *pos |= 0x04; /* Bit 2 - Extended Channel Switching */
 177                 break;
 178         case 1: /* Bits 8-15 */
 179                 if (hapd->conf->proxy_arp)
 180                         *pos |= 0x10; /* Bit 12 - Proxy ARP */
 181                 break;
 182         case 2: /* Bits 16-23 */
 183                 if (hapd->conf->wnm_sleep_mode)
 184                         *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
 185                 if (hapd->conf->bss_transition)
 186                         *pos |= 0x08; /* Bit 19 - BSS Transition */
 187                 break;
 188         case 3: /* Bits 24-31 */
 189 #ifdef CONFIG_WNM_AP
 190                 *pos |= 0x02; /* Bit 25 - SSID List */
 191 #endif /* CONFIG_WNM_AP */
 192                 if (hapd->conf->time_advertisement == 2)
 193                         *pos |= 0x08; /* Bit 27 - UTC TSF Offset */
 194                 if (hapd->conf->interworking)
 195                         *pos |= 0x80; /* Bit 31 - Interworking */
 196                 break;
 197         case 4: /* Bits 32-39 */
 198                 if (hapd->conf->qos_map_set_len)
 199                         *pos |= 0x01; /* Bit 32 - QoS Map */
 200                 if (hapd->conf->tdls & TDLS_PROHIBIT)
 201                         *pos |= 0x40; /* Bit 38 - TDLS Prohibited */
 202                 if (hapd->conf->tdls & TDLS_PROHIBIT_CHAN_SWITCH) {
 203                         /* Bit 39 - TDLS Channel Switching Prohibited */
 204                         *pos |= 0x80;
 205                 }
 206                 break;
 207         case 5: /* Bits 40-47 */
 208 #ifdef CONFIG_HS20
 209                 if (hapd->conf->hs20)
 210                         *pos |= 0x40; /* Bit 46 - WNM-Notification */
 211 #endif /* CONFIG_HS20 */
 212 #ifdef CONFIG_MBO
 213                 if (hapd->conf->mbo_enabled)
 214                         *pos |= 0x40; /* Bit 46 - WNM-Notification */
 215 #endif /* CONFIG_MBO */
 216                 break;
 217         case 6: /* Bits 48-55 */
 218                 if (hapd->conf->ssid.utf8_ssid)
 219                         *pos |= 0x01; /* Bit 48 - UTF-8 SSID */
 220                 break;
 221         case 7: /* Bits 56-63 */
 222                 break;
 223         case 8: /* Bits 64-71 */
 224                 if (hapd->conf->ftm_responder)
 225                         *pos |= 0x40; /* Bit 70 - FTM responder */
 226                 if (hapd->conf->ftm_initiator)
 227                         *pos |= 0x80; /* Bit 71 - FTM initiator */
 228         case 9: /* Bits 72-79 */
 229 #ifdef CONFIG_FILS
 230                 if ((hapd->conf->wpa & WPA_PROTO_RSN) &&
 231                     wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt))
 232                         *pos |= 0x01;
 233 #endif /* CONFIG_FILS */
 234                 break;
 235         }
 236 }
 237
 238
 239 u8 * hostapd_eid_ext_capab(struct hostapd_data *hapd, u8 *eid)
 240 {
 241         u8 *pos = eid;
 242         u8 len = 0, i;
 243
 244         if (hapd->conf->tdls & (TDLS_PROHIBIT | TDLS_PROHIBIT_CHAN_SWITCH))
 245                 len = 5;
 246         if (len < 4 && hapd->conf->interworking)
 247                 len = 4;
 248         if (len < 3 && hapd->conf->wnm_sleep_mode)
 249                 len = 3;
 250         if (len < 1 && hapd->iconf->obss_interval)
 251                 len = 1;
 252         if (len < 7 && hapd->conf->ssid.utf8_ssid)
 253                 len = 7;
 254         if (len < 9 &&
 255             (hapd->conf->ftm_initiator || hapd->conf->ftm_responder))
 256                 len = 9;
 257 #ifdef CONFIG_WNM_AP
 258         if (len < 4)
 259                 len = 4;
 260 #endif /* CONFIG_WNM_AP */
 261 #ifdef CONFIG_HS20
 262         if (hapd->conf->hs20 && len < 6)
 263                 len = 6;
 264 #endif /* CONFIG_HS20 */
 265 #ifdef CONFIG_MBO
 266         if (hapd->conf->mbo_enabled && len < 6)
 267                 len = 6;
 268 #endif /* CONFIG_MBO */
 269 #ifdef CONFIG_FILS
 270         if ((!(hapd->conf->wpa & WPA_PROTO_RSN) ||
 271              !wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt)) && len < 10)
 272                 len = 10;
 273 #endif /* CONFIG_FILS */
 274         if (len < hapd->iface->extended_capa_len)
 275                 len = hapd->iface->extended_capa_len;
 276         if (len == 0)
 277                 return eid;
 278
 279         *pos++ = WLAN_EID_EXT_CAPAB;
 280         *pos++ = len;
 281         for (i = 0; i < len; i++, pos++) {
 282                 hostapd_ext_capab_byte(hapd, pos, i);
 283
 284                 if (i < hapd->iface->extended_capa_len) {
 285                         *pos &= ~hapd->iface->extended_capa_mask[i];
 286                         *pos |= hapd->iface->extended_capa[i];
 287                 }
 288         }
 289
 290         while (len > 0 && eid[1 + len] == 0) {
 291                 len--;
 292                 eid[1] = len;
 293         }
 294         if (len == 0)
 295                 return eid;
 296
 297         return eid + 2 + len;
 298 }
 299
 300
 301 u8 * hostapd_eid_qos_map_set(struct hostapd_data *hapd, u8 *eid)
 302 {
 303         u8 *pos = eid;
 304         u8 len = hapd->conf->qos_map_set_len;
 305
 306         if (!len)
 307                 return eid;
 308
 309         *pos++ = WLAN_EID_QOS_MAP_SET;
 310         *pos++ = len;
 311         os_memcpy(pos, hapd->conf->qos_map_set, len);
 312         pos += len;
 313
 314         return pos;
 315 }
 316
 317
 318 u8 * hostapd_eid_interworking(struct hostapd_data *hapd, u8 *eid)
 319 {
 320         u8 *pos = eid;
 321 #ifdef CONFIG_INTERWORKING
 322         u8 *len;
 323
 324         if (!hapd->conf->interworking)
 325                 return eid;
 326
 327         *pos++ = WLAN_EID_INTERWORKING;
 328         len = pos++;
 329
 330         *pos = hapd->conf->access_network_type;
 331         if (hapd->conf->internet)
 332                 *pos |= INTERWORKING_ANO_INTERNET;
 333         if (hapd->conf->asra)
 334                 *pos |= INTERWORKING_ANO_ASRA;
 335         if (hapd->conf->esr)
 336                 *pos |= INTERWORKING_ANO_ESR;
 337         if (hapd->conf->uesa)
 338                 *pos |= INTERWORKING_ANO_UESA;
 339         pos++;
 340
 341         if (hapd->conf->venue_info_set) {
 342                 *pos++ = hapd->conf->venue_group;
 343                 *pos++ = hapd->conf->venue_type;
 344         }
 345
 346         if (!is_zero_ether_addr(hapd->conf->hessid)) {
 347                 os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
 348                 pos += ETH_ALEN;
 349         }
 350
 351         *len = pos - len - 1;
 352 #endif /* CONFIG_INTERWORKING */
 353
 354         return pos;
 355 }
 356
 357
 358 u8 * hostapd_eid_adv_proto(struct hostapd_data *hapd, u8 *eid)
 359 {
 360         u8 *pos = eid;
 361 #ifdef CONFIG_INTERWORKING
 362
 363         /* TODO: Separate configuration for ANQP? */
 364         if (!hapd->conf->interworking)
 365                 return eid;
 366
 367         *pos++ = WLAN_EID_ADV_PROTO;
 368         *pos++ = 2;
 369         *pos++ = 0x7F; /* Query Response Length Limit | PAME-BI */
 370         *pos++ = ACCESS_NETWORK_QUERY_PROTOCOL;
 371 #endif /* CONFIG_INTERWORKING */
 372
 373         return pos;
 374 }
 375
 376
 377 u8 * hostapd_eid_roaming_consortium(struct hostapd_data *hapd, u8 *eid)
 378 {
 379         u8 *pos = eid;
 380 #ifdef CONFIG_INTERWORKING
 381         u8 *len;
 382         unsigned int i, count;
 383
 384         if (!hapd->conf->interworking ||
 385             hapd->conf->roaming_consortium == NULL ||
 386             hapd->conf->roaming_consortium_count == 0)
 387                 return eid;
 388
 389         *pos++ = WLAN_EID_ROAMING_CONSORTIUM;
 390         len = pos++;
 391
 392         /* Number of ANQP OIs (in addition to the max 3 listed here) */
 393         if (hapd->conf->roaming_consortium_count > 3 + 255)
 394                 *pos++ = 255;
 395         else if (hapd->conf->roaming_consortium_count > 3)
 396                 *pos++ = hapd->conf->roaming_consortium_count - 3;
 397         else
 398                 *pos++ = 0;
 399
 400         /* OU #1 and #2 Lengths */
 401         *pos = hapd->conf->roaming_consortium[0].len;
 402         if (hapd->conf->roaming_consortium_count > 1)
 403                 *pos |= hapd->conf->roaming_consortium[1].len << 4;
 404         pos++;
 405
 406         if (hapd->conf->roaming_consortium_count > 3)
 407                 count = 3;
 408         else
 409                 count = hapd->conf->roaming_consortium_count;
 410
 411         for (i = 0; i < count; i++) {
 412                 os_memcpy(pos, hapd->conf->roaming_consortium[i].oi,
 413                           hapd->conf->roaming_consortium[i].len);
 414                 pos += hapd->conf->roaming_consortium[i].len;
 415         }
 416
 417         *len = pos - len - 1;
 418 #endif /* CONFIG_INTERWORKING */
 419
 420         return pos;
 421 }
 422
 423
 424 u8 * hostapd_eid_time_adv(struct hostapd_data *hapd, u8 *eid)
 425 {
 426         if (hapd->conf->time_advertisement != 2)
 427                 return eid;
 428
 429         if (hapd->time_adv == NULL &&
 430             hostapd_update_time_adv(hapd) < 0)
 431                 return eid;
 432
 433         if (hapd->time_adv == NULL)
 434                 return eid;
 435
 436         os_memcpy(eid, wpabuf_head(hapd->time_adv),
 437                   wpabuf_len(hapd->time_adv));
 438         eid += wpabuf_len(hapd->time_adv);
 439
 440         return eid;
 441 }
 442
 443
 444 u8 * hostapd_eid_time_zone(struct hostapd_data *hapd, u8 *eid)
 445 {
 446         size_t len;
 447
 448         if (hapd->conf->time_advertisement != 2)
 449                 return eid;
 450
 451         len = os_strlen(hapd->conf->time_zone);
 452
 453         *eid++ = WLAN_EID_TIME_ZONE;
 454         *eid++ = len;
 455         os_memcpy(eid, hapd->conf->time_zone, len);
 456         eid += len;
 457
 458         return eid;
 459 }
 460
 461
 462 int hostapd_update_time_adv(struct hostapd_data *hapd)
 463 {
 464         const int elen = 2 + 1 + 10 + 5 + 1;
 465         struct os_time t;
 466         struct os_tm tm;
 467         u8 *pos;
 468
 469         if (hapd->conf->time_advertisement != 2)
 470                 return 0;
 471
 472         if (os_get_time(&t) < 0 || os_gmtime(t.sec, &tm) < 0)
 473                 return -1;
 474
 475         if (!hapd->time_adv) {
 476                 hapd->time_adv = wpabuf_alloc(elen);
 477                 if (hapd->time_adv == NULL)
 478                         return -1;
 479                 pos = wpabuf_put(hapd->time_adv, elen);
 480         } else
 481                 pos = wpabuf_mhead_u8(hapd->time_adv);
 482
 483         *pos++ = WLAN_EID_TIME_ADVERTISEMENT;
 484         *pos++ = 1 + 10 + 5 + 1;
 485
 486         *pos++ = 2; /* UTC time at which the TSF timer is 0 */
 487
 488         /* Time Value at TSF 0 */
 489         /* FIX: need to calculate this based on the current TSF value */
 490         WPA_PUT_LE16(pos, tm.year); /* Year */
 491         pos += 2;
 492         *pos++ = tm.month; /* Month */
 493         *pos++ = tm.day; /* Day of month */
 494         *pos++ = tm.hour; /* Hours */
 495         *pos++ = tm.min; /* Minutes */
 496         *pos++ = tm.sec; /* Seconds */
 497         WPA_PUT_LE16(pos, 0); /* Milliseconds (not used) */
 498         pos += 2;
 499         *pos++ = 0; /* Reserved */
 500
 501         /* Time Error */
 502         /* TODO: fill in an estimate on the error */
 503         *pos++ = 0;
 504         *pos++ = 0;
 505         *pos++ = 0;
 506         *pos++ = 0;
 507         *pos++ = 0;
 508
 509         *pos++ = hapd->time_update_counter++;
 510
 511         return 0;
 512 }
 513
 514
 515 u8 * hostapd_eid_bss_max_idle_period(struct hostapd_data *hapd, u8 *eid)
 516 {
 517         u8 *pos = eid;
 518
 519 #ifdef CONFIG_WNM_AP
 520         if (hapd->conf->ap_max_inactivity > 0) {
 521                 unsigned int val;
 522                 *pos++ = WLAN_EID_BSS_MAX_IDLE_PERIOD;
 523                 *pos++ = 3;
 524                 val = hapd->conf->ap_max_inactivity;
 525                 if (val > 68000)
 526                         val = 68000;
 527                 val *= 1000;
 528                 val /= 1024;
 529                 if (val == 0)
 530                         val = 1;
 531                 if (val > 65535)
 532                         val = 65535;
 533                 WPA_PUT_LE16(pos, val);
 534                 pos += 2;
 535                 *pos++ = 0x00; /* TODO: Protected Keep-Alive Required */
 536         }
 537 #endif /* CONFIG_WNM_AP */
 538
 539         return pos;
 540 }
 541
 542
 543 #ifdef CONFIG_MBO
 544
 545 u8 * hostapd_eid_mbo(struct hostapd_data *hapd, u8 *eid, size_t len)
 546 {
 547         u8 mbo[9], *mbo_pos = mbo;
 548         u8 *pos = eid;
 549
 550         if (!hapd->conf->mbo_enabled && !hapd->enable_oce)
 551                 return eid;
 552
 553         if (hapd->conf->mbo_enabled) {
 554                 *mbo_pos++ = MBO_ATTR_ID_AP_CAPA_IND;
 555                 *mbo_pos++ = 1;
 556                 /* Not Cellular aware */
 557                 *mbo_pos++ = 0;
 558         }
 559
 560         if (hapd->conf->mbo_enabled && hapd->mbo_assoc_disallow) {
 561                 *mbo_pos++ = MBO_ATTR_ID_ASSOC_DISALLOW;
 562                 *mbo_pos++ = 1;
 563                 *mbo_pos++ = hapd->mbo_assoc_disallow;
 564         }
 565
 566         if (hapd->enable_oce & (OCE_AP | OCE_STA_CFON)) {
 567                 u8 ctrl;
 568
 569                 ctrl = OCE_RELEASE;
 570                 if ((hapd->enable_oce & (OCE_AP | OCE_STA_CFON)) ==
 571                     OCE_STA_CFON)
 572                         ctrl |= OCE_IS_STA_CFON;
 573
 574                 *mbo_pos++ = OCE_ATTR_ID_CAPA_IND;
 575                 *mbo_pos++ = 1;
 576                 *mbo_pos++ = ctrl;
 577         }
 578
 579         pos += mbo_add_ie(pos, len, mbo, mbo_pos - mbo);
 580
 581         return pos;
 582 }
 583
 584
 585 u8 hostapd_mbo_ie_len(struct hostapd_data *hapd)
 586 {
 587         u8 len;
 588
 589         if (!hapd->conf->mbo_enabled && !hapd->enable_oce)
 590                 return 0;
 591
 592         /*
 593          * MBO IE header (6) + Capability Indication attribute (3) +
 594          * Association Disallowed attribute (3) = 12
 595          */
 596         len = 6;
 597         if (hapd->conf->mbo_enabled)
 598                 len += 3 + (hapd->mbo_assoc_disallow ? 3 : 0);
 599
 600         /* OCE capability indication attribute (3) */
 601         if (hapd->enable_oce & (OCE_AP | OCE_STA_CFON))
 602                 len += 3;
 603
 604         return len;
 605 }
 606
 607 #endif /* CONFIG_MBO */
 608
 609
 610 void ap_copy_sta_supp_op_classes(struct sta_info *sta,
 611                                  const u8 *supp_op_classes,
 612                                  size_t supp_op_classes_len)
 613 {
 614         if (!supp_op_classes)
 615                 return;
 616         os_free(sta->supp_op_classes);
 617         sta->supp_op_classes = os_malloc(1 + supp_op_classes_len);
 618         if (!sta->supp_op_classes)
 619                 return;
 620
 621         sta->supp_op_classes[0] = supp_op_classes_len;
 622         os_memcpy(sta->supp_op_classes + 1, supp_op_classes,
 623                   supp_op_classes_len);
 624 }
 625
 626
 627 u8 * hostapd_eid_fils_indic(struct hostapd_data *hapd, u8 *eid, int hessid)
 628 {
 629         u8 *pos = eid;
 630 #ifdef CONFIG_FILS
 631         u8 *len;
 632         u16 fils_info = 0;
 633         size_t realms;
 634         struct fils_realm *realm;
 635
 636         if (!(hapd->conf->wpa & WPA_PROTO_RSN) ||
 637             !wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt))
 638                 return pos;
 639
 640         realms = dl_list_len(&hapd->conf->fils_realms);
 641         if (realms > 7)
 642                 realms = 7; /* 3 bit count field limits this to max 7 */
 643
 644         *pos++ = WLAN_EID_FILS_INDICATION;
 645         len = pos++;
 646         /* TODO: B0..B2: Number of Public Key Identifiers */
 647         if (hapd->conf->erp_domain) {
 648                 /* B3..B5: Number of Realm Identifiers */
 649                 fils_info |= realms << 3;
 650         }
 651         /* TODO: B6: FILS IP Address Configuration */
 652         if (hapd->conf->fils_cache_id_set)
 653                 fils_info |= BIT(7);
 654         if (hessid && !is_zero_ether_addr(hapd->conf->hessid))
 655                 fils_info |= BIT(8); /* HESSID Included */
 656         /* FILS Shared Key Authentication without PFS Supported */
 657         fils_info |= BIT(9);
 658         if (hapd->conf->fils_dh_group) {
 659                 /* FILS Shared Key Authentication with PFS Supported */
 660                 fils_info |= BIT(10);
 661         }
 662         /* TODO: B11: FILS Public Key Authentication Supported */
 663         /* B12..B15: Reserved */
 664         WPA_PUT_LE16(pos, fils_info);
 665         pos += 2;
 666         if (hapd->conf->fils_cache_id_set) {
 667                 os_memcpy(pos, hapd->conf->fils_cache_id, FILS_CACHE_ID_LEN);
 668                 pos += FILS_CACHE_ID_LEN;
 669         }
 670         if (hessid && !is_zero_ether_addr(hapd->conf->hessid)) {
 671                 os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
 672                 pos += ETH_ALEN;
 673         }
 674
 675         dl_list_for_each(realm, &hapd->conf->fils_realms, struct fils_realm,
 676                          list) {
 677                 if (realms == 0)
 678                         break;
 679                 realms--;
 680                 os_memcpy(pos, realm->hash, 2);
 681                 pos += 2;
 682         }
 683         *len = pos - len - 1;
 684 #endif /* CONFIG_FILS */
 685
 686         return pos;
 687 }