1 /* 2 * hostapd / IEEE 802.11 Management 3 * Copyright (c) 2002-2012, Jouni Malinen <j (at) 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 "common/ocv.h" 14 #include "hostapd.h" 15 #include "sta_info.h" 16 #include "ap_config.h" 17 #include "ap_drv_ops.h" 18 #include "wpa_auth.h" 19 #include "ieee802_11.h" 20 21 22 #ifdef CONFIG_IEEE80211W 23 24 u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd, 25 struct sta_info *sta, u8 *eid) 26 { 27 u8 *pos = eid; 28 u32 timeout, tu; 29 struct os_reltime now, passed; 30 31 *pos++ = WLAN_EID_TIMEOUT_INTERVAL; 32 *pos++ = 5; 33 *pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK; 34 os_get_reltime(&now); 35 os_reltime_sub(&now, &sta->sa_query_start, &passed); 36 tu = (passed.sec * 1000000 + passed.usec) / 1024; 37 if (hapd->conf->assoc_sa_query_max_timeout > tu) 38 timeout = hapd->conf->assoc_sa_query_max_timeout - tu; 39 else 40 timeout = 0; 41 if (timeout < hapd->conf->assoc_sa_query_max_timeout) 42 timeout++; /* add some extra time for local timers */ 43 WPA_PUT_LE32(pos, timeout); 44 pos += 4; 45 46 return pos; 47 } 48 49 50 /* MLME-SAQuery.request */ 51 void ieee802_11_send_sa_query_req(struct hostapd_data *hapd, 52 const u8 *addr, const u8 *trans_id) 53 { 54 #ifdef CONFIG_OCV 55 struct sta_info *sta; 56 #endif /* CONFIG_OCV */ 57 struct ieee80211_mgmt *mgmt; 58 u8 *oci_ie = NULL; 59 u8 oci_ie_len = 0; 60 u8 *end; 61 62 wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Request to " 63 MACSTR, MAC2STR(addr)); 64 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID", 65 trans_id, WLAN_SA_QUERY_TR_ID_LEN); 66 67 #ifdef CONFIG_OCV 68 sta = ap_get_sta(hapd, addr); 69 if (sta && wpa_auth_uses_ocv(sta->wpa_sm)) { 70 struct wpa_channel_info ci; 71 72 if (hostapd_drv_channel_info(hapd, &ci) != 0) { 73 wpa_printf(MSG_WARNING, 74 "Failed to get channel info for OCI element in SA Query Request"); 75 return; 76 } 77 78 oci_ie_len = OCV_OCI_EXTENDED_LEN; 79 oci_ie = os_zalloc(oci_ie_len); 80 if (!oci_ie) { 81 wpa_printf(MSG_WARNING, 82 "Failed to allocate buffer for OCI element in SA Query Request"); 83 return; 84 } 85 86 if (ocv_insert_extended_oci(&ci, oci_ie) < 0) { 87 os_free(oci_ie); 88 return; 89 } 90 } 91 #endif /* CONFIG_OCV */ 92 93 mgmt = os_zalloc(sizeof(*mgmt) + oci_ie_len); 94 if (!mgmt) { 95 wpa_printf(MSG_DEBUG, 96 "Failed to allocate buffer for SA Query Response frame"); 97 os_free(oci_ie); 98 return; 99 } 100 101 mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 102 WLAN_FC_STYPE_ACTION); 103 os_memcpy(mgmt->da, addr, ETH_ALEN); 104 os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN); 105 os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN); 106 mgmt->u.action.category = WLAN_ACTION_SA_QUERY; 107 mgmt->u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST; 108 os_memcpy(mgmt->u.action.u.sa_query_req.trans_id, trans_id, 109 WLAN_SA_QUERY_TR_ID_LEN); 110 end = mgmt->u.action.u.sa_query_req.variable; 111 #ifdef CONFIG_OCV 112 if (oci_ie_len > 0) { 113 os_memcpy(end, oci_ie, oci_ie_len); 114 end += oci_ie_len; 115 } 116 #endif /* CONFIG_OCV */ 117 if (hostapd_drv_send_mlme(hapd, mgmt, end - (u8 *) mgmt, 0) < 0) 118 wpa_printf(MSG_INFO, "ieee802_11_send_sa_query_req: send failed"); 119 120 os_free(mgmt); 121 os_free(oci_ie); 122 } 123 124 125 static void ieee802_11_send_sa_query_resp(struct hostapd_data *hapd, 126 const u8 *sa, const u8 *trans_id) 127 { 128 struct sta_info *sta; 129 struct ieee80211_mgmt *resp; 130 u8 *oci_ie = NULL; 131 u8 oci_ie_len = 0; 132 u8 *end; 133 134 wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Request from " 135 MACSTR, MAC2STR(sa)); 136 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID", 137 trans_id, WLAN_SA_QUERY_TR_ID_LEN); 138 139 sta = ap_get_sta(hapd, sa); 140 if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) { 141 wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignore SA Query Request " 142 "from unassociated STA " MACSTR, MAC2STR(sa)); 143 return; 144 } 145 146 #ifdef CONFIG_OCV 147 if (wpa_auth_uses_ocv(sta->wpa_sm)) { 148 struct wpa_channel_info ci; 149 150 if (hostapd_drv_channel_info(hapd, &ci) != 0) { 151 wpa_printf(MSG_WARNING, 152 "Failed to get channel info for OCI element in SA Query Response"); 153 return; 154 } 155 156 oci_ie_len = OCV_OCI_EXTENDED_LEN; 157 oci_ie = os_zalloc(oci_ie_len); 158 if (!oci_ie) { 159 wpa_printf(MSG_WARNING, 160 "Failed to allocate buffer for for OCI element in SA Query Response"); 161 return; 162 } 163 164 if (ocv_insert_extended_oci(&ci, oci_ie) < 0) { 165 os_free(oci_ie); 166 return; 167 } 168 } 169 #endif /* CONFIG_OCV */ 170 171 resp = os_zalloc(sizeof(*resp) + oci_ie_len); 172 if (!resp) { 173 wpa_printf(MSG_DEBUG, 174 "Failed to allocate buffer for SA Query Response frame"); 175 os_free(oci_ie); 176 return; 177 } 178 179 wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Response to " 180 MACSTR, MAC2STR(sa)); 181 182 resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, 183 WLAN_FC_STYPE_ACTION); 184 os_memcpy(resp->da, sa, ETH_ALEN); 185 os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN); 186 os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN); 187 resp->u.action.category = WLAN_ACTION_SA_QUERY; 188 resp->u.action.u.sa_query_req.action = WLAN_SA_QUERY_RESPONSE; 189 os_memcpy(resp->u.action.u.sa_query_req.trans_id, trans_id, 190 WLAN_SA_QUERY_TR_ID_LEN); 191 end = resp->u.action.u.sa_query_req.variable; 192 #ifdef CONFIG_OCV 193 if (oci_ie_len > 0) { 194 os_memcpy(end, oci_ie, oci_ie_len); 195 end += oci_ie_len; 196 } 197 #endif /* CONFIG_OCV */ 198 if (hostapd_drv_send_mlme(hapd, resp, end - (u8 *) resp, 0) < 0) 199 wpa_printf(MSG_INFO, "ieee80211_mgmt_sa_query_request: send failed"); 200 201 os_free(resp); 202 os_free(oci_ie); 203 } 204 205 206 void ieee802_11_sa_query_action(struct hostapd_data *hapd, 207 const struct ieee80211_mgmt *mgmt, 208 size_t len) 209 { 210 struct sta_info *sta; 211 int i; 212 const u8 *sa = mgmt->sa; 213 const u8 action_type = mgmt->u.action.u.sa_query_resp.action; 214 const u8 *trans_id = mgmt->u.action.u.sa_query_resp.trans_id; 215 216 if (((const u8 *) mgmt) + len < 217 mgmt->u.action.u.sa_query_resp.variable) { 218 wpa_printf(MSG_DEBUG, 219 "IEEE 802.11: Too short SA Query Action frame (len=%lu)", 220 (unsigned long) len); 221 return; 222 } 223 224 sta = ap_get_sta(hapd, sa); 225 226 #ifdef CONFIG_OCV 227 if (sta && wpa_auth_uses_ocv(sta->wpa_sm)) { 228 struct ieee802_11_elems elems; 229 struct wpa_channel_info ci; 230 int tx_chanwidth; 231 int tx_seg1_idx; 232 size_t ies_len; 233 const u8 *ies; 234 235 ies = mgmt->u.action.u.sa_query_resp.variable; 236 ies_len = len - (ies - (u8 *) mgmt); 237 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == 238 ParseFailed) { 239 wpa_printf(MSG_DEBUG, 240 "SA Query: Failed to parse elements"); 241 return; 242 } 243 244 if (hostapd_drv_channel_info(hapd, &ci) != 0) { 245 wpa_printf(MSG_WARNING, 246 "Failed to get channel info to validate received OCI in SA Query Action frame"); 247 return; 248 } 249 250 if (get_sta_tx_parameters(sta->wpa_sm, 251 channel_width_to_int(ci.chanwidth), 252 ci.seg1_idx, &tx_chanwidth, 253 &tx_seg1_idx) < 0) 254 return; 255 256 if (ocv_verify_tx_params(elems.oci, elems.oci_len, &ci, 257 tx_chanwidth, tx_seg1_idx) != 0) { 258 wpa_printf(MSG_WARNING, "%s", ocv_errorstr); 259 return; 260 } 261 } 262 #endif /* CONFIG_OCV */ 263 264 if (action_type == WLAN_SA_QUERY_REQUEST) { 265 ieee802_11_send_sa_query_resp(hapd, sa, trans_id); 266 return; 267 } 268 269 if (action_type != WLAN_SA_QUERY_RESPONSE) { 270 wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected SA Query " 271 "Action %d", action_type); 272 return; 273 } 274 275 wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Response from " 276 MACSTR, MAC2STR(sa)); 277 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID", 278 trans_id, WLAN_SA_QUERY_TR_ID_LEN); 279 280 /* MLME-SAQuery.confirm */ 281 282 if (sta == NULL || sta->sa_query_trans_id == NULL) { 283 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with " 284 "pending SA Query request found"); 285 return; 286 } 287 288 for (i = 0; i < sta->sa_query_count; i++) { 289 if (os_memcmp(sta->sa_query_trans_id + 290 i * WLAN_SA_QUERY_TR_ID_LEN, 291 trans_id, WLAN_SA_QUERY_TR_ID_LEN) == 0) 292 break; 293 } 294 295 if (i >= sta->sa_query_count) { 296 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching SA Query " 297 "transaction identifier found"); 298 return; 299 } 300 301 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211, 302 HOSTAPD_LEVEL_DEBUG, 303 "Reply to pending SA Query received"); 304 ap_sta_stop_sa_query(hapd, sta); 305 } 306 307 #endif /* CONFIG_IEEE80211W */ 308 309 310 static void hostapd_ext_capab_byte(struct hostapd_data *hapd, u8 *pos, int idx) 311 { 312 *pos = 0x00; 313 314 switch (idx) { 315 case 0: /* Bits 0-7 */ 316 if (hapd->iconf->obss_interval) 317 *pos |= 0x01; /* Bit 0 - Coexistence management */ 318 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA) 319 *pos |= 0x04; /* Bit 2 - Extended Channel Switching */ 320 break; 321 case 1: /* Bits 8-15 */ 322 if (hapd->conf->proxy_arp) 323 *pos |= 0x10; /* Bit 12 - Proxy ARP */ 324 if (hapd->conf->coloc_intf_reporting) { 325 /* Bit 13 - Collocated Interference Reporting */ 326 *pos |= 0x20; 327 } 328 break; 329 case 2: /* Bits 16-23 */ 330 if (hapd->conf->wnm_sleep_mode) 331 *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */ 332 if (hapd->conf->bss_transition) 333 *pos |= 0x08; /* Bit 19 - BSS Transition */ 334 break; 335 case 3: /* Bits 24-31 */ 336 #ifdef CONFIG_WNM_AP 337 *pos |= 0x02; /* Bit 25 - SSID List */ 338 #endif /* CONFIG_WNM_AP */ 339 if (hapd->conf->time_advertisement == 2) 340 *pos |= 0x08; /* Bit 27 - UTC TSF Offset */ 341 if (hapd->conf->interworking) 342 *pos |= 0x80; /* Bit 31 - Interworking */ 343 break; 344 case 4: /* Bits 32-39 */ 345 if (hapd->conf->qos_map_set_len) 346 *pos |= 0x01; /* Bit 32 - QoS Map */ 347 if (hapd->conf->tdls & TDLS_PROHIBIT) 348 *pos |= 0x40; /* Bit 38 - TDLS Prohibited */ 349 if (hapd->conf->tdls & TDLS_PROHIBIT_CHAN_SWITCH) { 350 /* Bit 39 - TDLS Channel Switching Prohibited */ 351 *pos |= 0x80; 352 } 353 break; 354 case 5: /* Bits 40-47 */ 355 #ifdef CONFIG_HS20 356 if (hapd->conf->hs20) 357 *pos |= 0x40; /* Bit 46 - WNM-Notification */ 358 #endif /* CONFIG_HS20 */ 359 #ifdef CONFIG_MBO 360 if (hapd->conf->mbo_enabled) 361 *pos |= 0x40; /* Bit 46 - WNM-Notification */ 362 #endif /* CONFIG_MBO */ 363 break; 364 case 6: /* Bits 48-55 */ 365 if (hapd->conf->ssid.utf8_ssid) 366 *pos |= 0x01; /* Bit 48 - UTF-8 SSID */ 367 break; 368 case 7: /* Bits 56-63 */ 369 break; 370 case 8: /* Bits 64-71 */ 371 if (hapd->conf->ftm_responder) 372 *pos |= 0x40; /* Bit 70 - FTM responder */ 373 if (hapd->conf->ftm_initiator) 374 *pos |= 0x80; /* Bit 71 - FTM initiator */ 375 break; 376 case 9: /* Bits 72-79 */ 377 #ifdef CONFIG_FILS 378 if ((hapd->conf->wpa & WPA_PROTO_RSN) && 379 wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt)) 380 *pos |= 0x01; 381 #endif /* CONFIG_FILS */ 382 break; 383 case 10: /* Bits 80-87 */ 384 #ifdef CONFIG_SAE 385 if (hapd->conf->wpa && 386 wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt)) { 387 int in_use = hostapd_sae_pw_id_in_use(hapd->conf); 388 389 if (in_use) 390 *pos |= 0x02; /* Bit 81 - SAE Password 391 * Identifiers In Use */ 392 if (in_use == 2) 393 *pos |= 0x04; /* Bit 82 - SAE Password 394 * Identifiers Used Exclusively */ 395 } 396 #endif /* CONFIG_SAE */ 397 break; 398 } 399 } 400 401 402 u8 * hostapd_eid_ext_capab(struct hostapd_data *hapd, u8 *eid) 403 { 404 u8 *pos = eid; 405 u8 len = 0, i; 406 407 if (hapd->conf->tdls & (TDLS_PROHIBIT | TDLS_PROHIBIT_CHAN_SWITCH)) 408 len = 5; 409 if (len < 4 && hapd->conf->interworking) 410 len = 4; 411 if (len < 3 && hapd->conf->wnm_sleep_mode) 412 len = 3; 413 if (len < 1 && hapd->iconf->obss_interval) 414 len = 1; 415 if (len < 7 && hapd->conf->ssid.utf8_ssid) 416 len = 7; 417 if (len < 9 && 418 (hapd->conf->ftm_initiator || hapd->conf->ftm_responder)) 419 len = 9; 420 #ifdef CONFIG_WNM_AP 421 if (len < 4) 422 len = 4; 423 #endif /* CONFIG_WNM_AP */ 424 #ifdef CONFIG_HS20 425 if (hapd->conf->hs20 && len < 6) 426 len = 6; 427 #endif /* CONFIG_HS20 */ 428 #ifdef CONFIG_MBO 429 if (hapd->conf->mbo_enabled && len < 6) 430 len = 6; 431 #endif /* CONFIG_MBO */ 432 #ifdef CONFIG_FILS 433 if ((!(hapd->conf->wpa & WPA_PROTO_RSN) || 434 !wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt)) && len < 10) 435 len = 10; 436 #endif /* CONFIG_FILS */ 437 #ifdef CONFIG_SAE 438 if (len < 11 && hapd->conf->wpa && 439 wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) && 440 hostapd_sae_pw_id_in_use(hapd->conf)) 441 len = 11; 442 #endif /* CONFIG_SAE */ 443 if (len < hapd->iface->extended_capa_len) 444 len = hapd->iface->extended_capa_len; 445 if (len == 0) 446 return eid; 447 448 *pos++ = WLAN_EID_EXT_CAPAB; 449 *pos++ = len; 450 for (i = 0; i < len; i++, pos++) { 451 hostapd_ext_capab_byte(hapd, pos, i); 452 453 if (i < hapd->iface->extended_capa_len) { 454 *pos &= ~hapd->iface->extended_capa_mask[i]; 455 *pos |= hapd->iface->extended_capa[i]; 456 } 457 } 458 459 while (len > 0 && eid[1 + len] == 0) { 460 len--; 461 eid[1] = len; 462 } 463 if (len == 0) 464 return eid; 465 466 return eid + 2 + len; 467 } 468 469 470 u8 * hostapd_eid_qos_map_set(struct hostapd_data *hapd, u8 *eid) 471 { 472 u8 *pos = eid; 473 u8 len = hapd->conf->qos_map_set_len; 474 475 if (!len) 476 return eid; 477 478 *pos++ = WLAN_EID_QOS_MAP_SET; 479 *pos++ = len; 480 os_memcpy(pos, hapd->conf->qos_map_set, len); 481 pos += len; 482 483 return pos; 484 } 485 486 487 u8 * hostapd_eid_interworking(struct hostapd_data *hapd, u8 *eid) 488 { 489 u8 *pos = eid; 490 #ifdef CONFIG_INTERWORKING 491 u8 *len; 492 493 if (!hapd->conf->interworking) 494 return eid; 495 496 *pos++ = WLAN_EID_INTERWORKING; 497 len = pos++; 498 499 *pos = hapd->conf->access_network_type; 500 if (hapd->conf->internet) 501 *pos |= INTERWORKING_ANO_INTERNET; 502 if (hapd->conf->asra) 503 *pos |= INTERWORKING_ANO_ASRA; 504 if (hapd->conf->esr) 505 *pos |= INTERWORKING_ANO_ESR; 506 if (hapd->conf->uesa) 507 *pos |= INTERWORKING_ANO_UESA; 508 pos++; 509 510 if (hapd->conf->venue_info_set) { 511 *pos++ = hapd->conf->venue_group; 512 *pos++ = hapd->conf->venue_type; 513 } 514 515 if (!is_zero_ether_addr(hapd->conf->hessid)) { 516 os_memcpy(pos, hapd->conf->hessid, ETH_ALEN); 517 pos += ETH_ALEN; 518 } 519 520 *len = pos - len - 1; 521 #endif /* CONFIG_INTERWORKING */ 522 523 return pos; 524 } 525 526 527 u8 * hostapd_eid_adv_proto(struct hostapd_data *hapd, u8 *eid) 528 { 529 u8 *pos = eid; 530 #ifdef CONFIG_INTERWORKING 531 532 /* TODO: Separate configuration for ANQP? */ 533 if (!hapd->conf->interworking) 534 return eid; 535 536 *pos++ = WLAN_EID_ADV_PROTO; 537 *pos++ = 2; 538 *pos++ = 0x7F; /* Query Response Length Limit | PAME-BI */ 539 *pos++ = ACCESS_NETWORK_QUERY_PROTOCOL; 540 #endif /* CONFIG_INTERWORKING */ 541 542 return pos; 543 } 544 545 546 u8 * hostapd_eid_roaming_consortium(struct hostapd_data *hapd, u8 *eid) 547 { 548 u8 *pos = eid; 549 #ifdef CONFIG_INTERWORKING 550 u8 *len; 551 unsigned int i, count; 552 553 if (!hapd->conf->interworking || 554 hapd->conf->roaming_consortium == NULL || 555 hapd->conf->roaming_consortium_count == 0) 556 return eid; 557 558 *pos++ = WLAN_EID_ROAMING_CONSORTIUM; 559 len = pos++; 560 561 /* Number of ANQP OIs (in addition to the max 3 listed here) */ 562 if (hapd->conf->roaming_consortium_count > 3 + 255) 563 *pos++ = 255; 564 else if (hapd->conf->roaming_consortium_count > 3) 565 *pos++ = hapd->conf->roaming_consortium_count - 3; 566 else 567 *pos++ = 0; 568 569 /* OU #1 and #2 Lengths */ 570 *pos = hapd->conf->roaming_consortium[0].len; 571 if (hapd->conf->roaming_consortium_count > 1) 572 *pos |= hapd->conf->roaming_consortium[1].len << 4; 573 pos++; 574 575 if (hapd->conf->roaming_consortium_count > 3) 576 count = 3; 577 else 578 count = hapd->conf->roaming_consortium_count; 579 580 for (i = 0; i < count; i++) { 581 os_memcpy(pos, hapd->conf->roaming_consortium[i].oi, 582 hapd->conf->roaming_consortium[i].len); 583 pos += hapd->conf->roaming_consortium[i].len; 584 } 585 586 *len = pos - len - 1; 587 #endif /* CONFIG_INTERWORKING */ 588 589 return pos; 590 } 591 592 593 u8 * hostapd_eid_time_adv(struct hostapd_data *hapd, u8 *eid) 594 { 595 if (hapd->conf->time_advertisement != 2) 596 return eid; 597 598 if (hapd->time_adv == NULL && 599 hostapd_update_time_adv(hapd) < 0) 600 return eid; 601 602 if (hapd->time_adv == NULL) 603 return eid; 604 605 os_memcpy(eid, wpabuf_head(hapd->time_adv), 606 wpabuf_len(hapd->time_adv)); 607 eid += wpabuf_len(hapd->time_adv); 608 609 return eid; 610 } 611 612 613 u8 * hostapd_eid_time_zone(struct hostapd_data *hapd, u8 *eid) 614 { 615 size_t len; 616 617 if (hapd->conf->time_advertisement != 2 || !hapd->conf->time_zone) 618 return eid; 619 620 len = os_strlen(hapd->conf->time_zone); 621 622 *eid++ = WLAN_EID_TIME_ZONE; 623 *eid++ = len; 624 os_memcpy(eid, hapd->conf->time_zone, len); 625 eid += len; 626 627 return eid; 628 } 629 630 631 int hostapd_update_time_adv(struct hostapd_data *hapd) 632 { 633 const int elen = 2 + 1 + 10 + 5 + 1; 634 struct os_time t; 635 struct os_tm tm; 636 u8 *pos; 637 638 if (hapd->conf->time_advertisement != 2) 639 return 0; 640 641 if (os_get_time(&t) < 0 || os_gmtime(t.sec, &tm) < 0) 642 return -1; 643 644 if (!hapd->time_adv) { 645 hapd->time_adv = wpabuf_alloc(elen); 646 if (hapd->time_adv == NULL) 647 return -1; 648 pos = wpabuf_put(hapd->time_adv, elen); 649 } else 650 pos = wpabuf_mhead_u8(hapd->time_adv); 651 652 *pos++ = WLAN_EID_TIME_ADVERTISEMENT; 653 *pos++ = 1 + 10 + 5 + 1; 654 655 *pos++ = 2; /* UTC time at which the TSF timer is 0 */ 656 657 /* Time Value at TSF 0 */ 658 /* FIX: need to calculate this based on the current TSF value */ 659 WPA_PUT_LE16(pos, tm.year); /* Year */ 660 pos += 2; 661 *pos++ = tm.month; /* Month */ 662 *pos++ = tm.day; /* Day of month */ 663 *pos++ = tm.hour; /* Hours */ 664 *pos++ = tm.min; /* Minutes */ 665 *pos++ = tm.sec; /* Seconds */ 666 WPA_PUT_LE16(pos, 0); /* Milliseconds (not used) */ 667 pos += 2; 668 *pos++ = 0; /* Reserved */ 669 670 /* Time Error */ 671 /* TODO: fill in an estimate on the error */ 672 *pos++ = 0; 673 *pos++ = 0; 674 *pos++ = 0; 675 *pos++ = 0; 676 *pos++ = 0; 677 678 *pos++ = hapd->time_update_counter++; 679 680 return 0; 681 } 682 683 684 u8 * hostapd_eid_bss_max_idle_period(struct hostapd_data *hapd, u8 *eid) 685 { 686 u8 *pos = eid; 687 688 #ifdef CONFIG_WNM_AP 689 if (hapd->conf->ap_max_inactivity > 0) { 690 unsigned int val; 691 *pos++ = WLAN_EID_BSS_MAX_IDLE_PERIOD; 692 *pos++ = 3; 693 val = hapd->conf->ap_max_inactivity; 694 if (val > 68000) 695 val = 68000; 696 val *= 1000; 697 val /= 1024; 698 if (val == 0) 699 val = 1; 700 if (val > 65535) 701 val = 65535; 702 WPA_PUT_LE16(pos, val); 703 pos += 2; 704 *pos++ = 0x00; /* TODO: Protected Keep-Alive Required */ 705 } 706 #endif /* CONFIG_WNM_AP */ 707 708 return pos; 709 } 710 711 712 #ifdef CONFIG_MBO 713 714 u8 * hostapd_eid_mbo_rssi_assoc_rej(struct hostapd_data *hapd, u8 *eid, 715 size_t len, int delta) 716 { 717 u8 mbo[4]; 718 719 mbo[0] = OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT; 720 mbo[1] = 2; 721 /* Delta RSSI */ 722 mbo[2] = delta; 723 /* Retry delay */ 724 mbo[3] = hapd->iconf->rssi_reject_assoc_timeout; 725 726 return eid + mbo_add_ie(eid, len, mbo, 4); 727 } 728 729 730 u8 * hostapd_eid_mbo(struct hostapd_data *hapd, u8 *eid, size_t len) 731 { 732 u8 mbo[9], *mbo_pos = mbo; 733 u8 *pos = eid; 734 735 if (!hapd->conf->mbo_enabled && 736 !OCE_STA_CFON_ENABLED(hapd) && !OCE_AP_ENABLED(hapd)) 737 return eid; 738 739 if (hapd->conf->mbo_enabled) { 740 *mbo_pos++ = MBO_ATTR_ID_AP_CAPA_IND; 741 *mbo_pos++ = 1; 742 /* Not Cellular aware */ 743 *mbo_pos++ = 0; 744 } 745 746 if (hapd->conf->mbo_enabled && hapd->mbo_assoc_disallow) { 747 *mbo_pos++ = MBO_ATTR_ID_ASSOC_DISALLOW; 748 *mbo_pos++ = 1; 749 *mbo_pos++ = hapd->mbo_assoc_disallow; 750 } 751 752 if (OCE_STA_CFON_ENABLED(hapd) || OCE_AP_ENABLED(hapd)) { 753 u8 ctrl; 754 755 ctrl = OCE_RELEASE; 756 if (OCE_STA_CFON_ENABLED(hapd) && !OCE_AP_ENABLED(hapd)) 757 ctrl |= OCE_IS_STA_CFON; 758 759 *mbo_pos++ = OCE_ATTR_ID_CAPA_IND; 760 *mbo_pos++ = 1; 761 *mbo_pos++ = ctrl; 762 } 763 764 pos += mbo_add_ie(pos, len, mbo, mbo_pos - mbo); 765 766 return pos; 767 } 768 769 770 u8 hostapd_mbo_ie_len(struct hostapd_data *hapd) 771 { 772 u8 len; 773 774 if (!hapd->conf->mbo_enabled && 775 !OCE_STA_CFON_ENABLED(hapd) && !OCE_AP_ENABLED(hapd)) 776 return 0; 777 778 /* 779 * MBO IE header (6) + Capability Indication attribute (3) + 780 * Association Disallowed attribute (3) = 12 781 */ 782 len = 6; 783 if (hapd->conf->mbo_enabled) 784 len += 3 + (hapd->mbo_assoc_disallow ? 3 : 0); 785 786 /* OCE capability indication attribute (3) */ 787 if (OCE_STA_CFON_ENABLED(hapd) || OCE_AP_ENABLED(hapd)) 788 len += 3; 789 790 return len; 791 } 792 793 #endif /* CONFIG_MBO */ 794 795 796 #ifdef CONFIG_OWE 797 static int hostapd_eid_owe_trans_enabled(struct hostapd_data *hapd) 798 { 799 return hapd->conf->owe_transition_ssid_len > 0 && 800 !is_zero_ether_addr(hapd->conf->owe_transition_bssid); 801 } 802 #endif /* CONFIG_OWE */ 803 804 805 size_t hostapd_eid_owe_trans_len(struct hostapd_data *hapd) 806 { 807 #ifdef CONFIG_OWE 808 if (!hostapd_eid_owe_trans_enabled(hapd)) 809 return 0; 810 return 6 + ETH_ALEN + 1 + hapd->conf->owe_transition_ssid_len; 811 #else /* CONFIG_OWE */ 812 return 0; 813 #endif /* CONFIG_OWE */ 814 } 815 816 817 u8 * hostapd_eid_owe_trans(struct hostapd_data *hapd, u8 *eid, 818 size_t len) 819 { 820 #ifdef CONFIG_OWE 821 u8 *pos = eid; 822 size_t elen; 823 824 if (hapd->conf->owe_transition_ifname[0] && 825 !hostapd_eid_owe_trans_enabled(hapd)) 826 hostapd_owe_trans_get_info(hapd); 827 828 if (!hostapd_eid_owe_trans_enabled(hapd)) 829 return pos; 830 831 elen = hostapd_eid_owe_trans_len(hapd); 832 if (len < elen) { 833 wpa_printf(MSG_DEBUG, 834 "OWE: Not enough room in the buffer for OWE IE"); 835 return pos; 836 } 837 838 *pos++ = WLAN_EID_VENDOR_SPECIFIC; 839 *pos++ = elen - 2; 840 WPA_PUT_BE24(pos, OUI_WFA); 841 pos += 3; 842 *pos++ = OWE_OUI_TYPE; 843 os_memcpy(pos, hapd->conf->owe_transition_bssid, ETH_ALEN); 844 pos += ETH_ALEN; 845 *pos++ = hapd->conf->owe_transition_ssid_len; 846 os_memcpy(pos, hapd->conf->owe_transition_ssid, 847 hapd->conf->owe_transition_ssid_len); 848 pos += hapd->conf->owe_transition_ssid_len; 849 850 return pos; 851 #else /* CONFIG_OWE */ 852 return eid; 853 #endif /* CONFIG_OWE */ 854 } 855 856 857 void ap_copy_sta_supp_op_classes(struct sta_info *sta, 858 const u8 *supp_op_classes, 859 size_t supp_op_classes_len) 860 { 861 if (!supp_op_classes) 862 return; 863 os_free(sta->supp_op_classes); 864 sta->supp_op_classes = os_malloc(1 + supp_op_classes_len); 865 if (!sta->supp_op_classes) 866 return; 867 868 sta->supp_op_classes[0] = supp_op_classes_len; 869 os_memcpy(sta->supp_op_classes + 1, supp_op_classes, 870 supp_op_classes_len); 871 } 872 873 874 u8 * hostapd_eid_fils_indic(struct hostapd_data *hapd, u8 *eid, int hessid) 875 { 876 u8 *pos = eid; 877 #ifdef CONFIG_FILS 878 u8 *len; 879 u16 fils_info = 0; 880 size_t realms; 881 struct fils_realm *realm; 882 883 if (!(hapd->conf->wpa & WPA_PROTO_RSN) || 884 !wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt)) 885 return pos; 886 887 realms = dl_list_len(&hapd->conf->fils_realms); 888 if (realms > 7) 889 realms = 7; /* 3 bit count field limits this to max 7 */ 890 891 *pos++ = WLAN_EID_FILS_INDICATION; 892 len = pos++; 893 /* TODO: B0..B2: Number of Public Key Identifiers */ 894 if (hapd->conf->erp_domain) { 895 /* B3..B5: Number of Realm Identifiers */ 896 fils_info |= realms << 3; 897 } 898 /* TODO: B6: FILS IP Address Configuration */ 899 if (hapd->conf->fils_cache_id_set) 900 fils_info |= BIT(7); 901 if (hessid && !is_zero_ether_addr(hapd->conf->hessid)) 902 fils_info |= BIT(8); /* HESSID Included */ 903 /* FILS Shared Key Authentication without PFS Supported */ 904 fils_info |= BIT(9); 905 if (hapd->conf->fils_dh_group) { 906 /* FILS Shared Key Authentication with PFS Supported */ 907 fils_info |= BIT(10); 908 } 909 /* TODO: B11: FILS Public Key Authentication Supported */ 910 /* B12..B15: Reserved */ 911 WPA_PUT_LE16(pos, fils_info); 912 pos += 2; 913 if (hapd->conf->fils_cache_id_set) { 914 os_memcpy(pos, hapd->conf->fils_cache_id, FILS_CACHE_ID_LEN); 915 pos += FILS_CACHE_ID_LEN; 916 } 917 if (hessid && !is_zero_ether_addr(hapd->conf->hessid)) { 918 os_memcpy(pos, hapd->conf->hessid, ETH_ALEN); 919 pos += ETH_ALEN; 920 } 921 922 dl_list_for_each(realm, &hapd->conf->fils_realms, struct fils_realm, 923 list) { 924 if (realms == 0) 925 break; 926 realms--; 927 os_memcpy(pos, realm->hash, 2); 928 pos += 2; 929 } 930 *len = pos - len - 1; 931 #endif /* CONFIG_FILS */ 932 933 return pos; 934 } 935 936 937 #ifdef CONFIG_OCV 938 int get_tx_parameters(struct sta_info *sta, int ap_max_chanwidth, 939 int ap_seg1_idx, int *bandwidth, int *seg1_idx) 940 { 941 int ht_40mhz = 0; 942 int vht_80p80 = 0; 943 int requested_bw; 944 945 if (sta->ht_capabilities) 946 ht_40mhz = !!(sta->ht_capabilities->ht_capabilities_info & 947 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET); 948 949 if (sta->vht_operation) { 950 struct ieee80211_vht_operation *oper = sta->vht_operation; 951 952 /* 953 * If a VHT Operation element was present, use it to determine 954 * the supported channel bandwidth. 955 */ 956 if (oper->vht_op_info_chwidth == 0) { 957 requested_bw = ht_40mhz ? 40 : 20; 958 } else if (oper->vht_op_info_chan_center_freq_seg1_idx == 0) { 959 requested_bw = 80; 960 } else { 961 int diff; 962 963 requested_bw = 160; 964 diff = abs((int) 965 oper->vht_op_info_chan_center_freq_seg0_idx - 966 (int) 967 oper->vht_op_info_chan_center_freq_seg1_idx); 968 vht_80p80 = oper->vht_op_info_chan_center_freq_seg1_idx 969 != 0 && diff > 16; 970 } 971 } else if (sta->vht_capabilities) { 972 struct ieee80211_vht_capabilities *capab; 973 int vht_chanwidth; 974 975 capab = sta->vht_capabilities; 976 977 /* 978 * If only the VHT Capabilities element is present (e.g., for 979 * normal clients), use it to determine the supported channel 980 * bandwidth. 981 */ 982 vht_chanwidth = capab->vht_capabilities_info & 983 VHT_CAP_SUPP_CHAN_WIDTH_MASK; 984 vht_80p80 = capab->vht_capabilities_info & 985 VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; 986 987 /* TODO: Also take into account Extended NSS BW Support field */ 988 requested_bw = vht_chanwidth ? 160 : 80; 989 } else { 990 requested_bw = ht_40mhz ? 40 : 20; 991 } 992 993 *bandwidth = requested_bw < ap_max_chanwidth ? 994 requested_bw : ap_max_chanwidth; 995 996 *seg1_idx = 0; 997 if (ap_seg1_idx && vht_80p80) 998 *seg1_idx = ap_seg1_idx; 999 1000 return 0; 1001 } 1002 #endif /* CONFIG_OCV */ 1003
