src/ap/drv_callbacks.c

   1 /*
   2  * hostapd / Callback functions for driver wrappers
   3  * Copyright (c) 2002-2013, 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 "utils/eloop.h"
  13 #include "radius/radius.h"
  14 #include "drivers/driver.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/ieee802_11_common.h"
  17 #include "common/wpa_ctrl.h"
  18 #include "crypto/random.h"
  19 #include "p2p/p2p.h"
  20 #include "wps/wps.h"
  21 #include "fst/fst.h"
  22 #include "wnm_ap.h"
  23 #include "hostapd.h"
  24 #include "ieee802_11.h"
  25 #include "ieee802_11_auth.h"
  26 #include "sta_info.h"
  27 #include "accounting.h"
  28 #include "tkip_countermeasures.h"
  29 #include "ieee802_1x.h"
  30 #include "wpa_auth.h"
  31 #include "wps_hostapd.h"
  32 #include "ap_drv_ops.h"
  33 #include "ap_config.h"
  34 #include "hw_features.h"
  35 #include "dfs.h"
  36 #include "beacon.h"
  37
  38
  39 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
  40                         const u8 *req_ies, size_t req_ies_len, int reassoc)
  41 {
  42         struct sta_info *sta;
  43         int new_assoc, res;
  44         struct ieee802_11_elems elems;
  45         const u8 *ie;
  46         size_t ielen;
  47 #if defined(CONFIG_IEEE80211R) || defined(CONFIG_IEEE80211W)
  48         u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
  49         u8 *p = buf;
  50 #endif /* CONFIG_IEEE80211R || CONFIG_IEEE80211W */
  51         u16 reason = WLAN_REASON_UNSPECIFIED;
  52         u16 status = WLAN_STATUS_SUCCESS;
  53         const u8 *p2p_dev_addr = NULL;
  54
  55         if (addr == NULL) {
  56                 /*
  57                  * This could potentially happen with unexpected event from the
  58                  * driver wrapper. This was seen at least in one case where the
  59                  * driver ended up being set to station mode while hostapd was
  60                  * running, so better make sure we stop processing such an
  61                  * event here.
  62                  */
  63                 wpa_printf(MSG_DEBUG,
  64                            "hostapd_notif_assoc: Skip event with no address");
  65                 return -1;
  66         }
  67         random_add_randomness(addr, ETH_ALEN);
  68
  69         hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
  70                        HOSTAPD_LEVEL_INFO, "associated");
  71
  72         ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
  73         if (elems.wps_ie) {
  74                 ie = elems.wps_ie - 2;
  75                 ielen = elems.wps_ie_len + 2;
  76                 wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
  77         } else if (elems.rsn_ie) {
  78                 ie = elems.rsn_ie - 2;
  79                 ielen = elems.rsn_ie_len + 2;
  80                 wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
  81         } else if (elems.wpa_ie) {
  82                 ie = elems.wpa_ie - 2;
  83                 ielen = elems.wpa_ie_len + 2;
  84                 wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
  85 #ifdef CONFIG_HS20
  86         } else if (elems.osen) {
  87                 ie = elems.osen - 2;
  88                 ielen = elems.osen_len + 2;
  89                 wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
  90 #endif /* CONFIG_HS20 */
  91         } else {
  92                 ie = NULL;
  93                 ielen = 0;
  94                 wpa_printf(MSG_DEBUG,
  95                            "STA did not include WPS/RSN/WPA IE in (Re)AssocReq");
  96         }
  97
  98         sta = ap_get_sta(hapd, addr);
  99         if (sta) {
 100                 ap_sta_no_session_timeout(hapd, sta);
 101                 accounting_sta_stop(hapd, sta);
 102
 103                 /*
 104                  * Make sure that the previously registered inactivity timer
 105                  * will not remove the STA immediately.
 106                  */
 107                 sta->timeout_next = STA_NULLFUNC;
 108         } else {
 109                 sta = ap_sta_add(hapd, addr);
 110                 if (sta == NULL) {
 111                         hostapd_drv_sta_disassoc(hapd, addr,
 112                                                  WLAN_REASON_DISASSOC_AP_BUSY);
 113                         return -1;
 114                 }
 115         }
 116         sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
 117
 118         res = hostapd_check_acl(hapd, addr, NULL);
 119         if (res != HOSTAPD_ACL_ACCEPT) {
 120                 wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect",
 121                            MAC2STR(addr));
 122                 reason = WLAN_REASON_UNSPECIFIED;
 123                 goto fail;
 124         }
 125
 126 #ifdef CONFIG_P2P
 127         if (elems.p2p) {
 128                 wpabuf_free(sta->p2p_ie);
 129                 sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
 130                                                           P2P_IE_VENDOR_TYPE);
 131                 if (sta->p2p_ie)
 132                         p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
 133         }
 134 #endif /* CONFIG_P2P */
 135
 136 #ifdef CONFIG_IEEE80211N
 137 #ifdef NEED_AP_MLME
 138         if (elems.ht_capabilities &&
 139             (hapd->iface->conf->ht_capab &
 140              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
 141                 struct ieee80211_ht_capabilities *ht_cap =
 142                         (struct ieee80211_ht_capabilities *)
 143                         elems.ht_capabilities;
 144
 145                 if (le_to_host16(ht_cap->ht_capabilities_info) &
 146                     HT_CAP_INFO_40MHZ_INTOLERANT)
 147                         ht40_intolerant_add(hapd->iface, sta);
 148         }
 149 #endif /* NEED_AP_MLME */
 150 #endif /* CONFIG_IEEE80211N */
 151
 152 #ifdef CONFIG_INTERWORKING
 153         if (elems.ext_capab && elems.ext_capab_len > 4) {
 154                 if (elems.ext_capab[4] & 0x01)
 155                         sta->qos_map_enabled = 1;
 156         }
 157 #endif /* CONFIG_INTERWORKING */
 158
 159 #ifdef CONFIG_HS20
 160         wpabuf_free(sta->hs20_ie);
 161         if (elems.hs20 && elems.hs20_len > 4) {
 162                 sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
 163                                                  elems.hs20_len - 4);
 164         } else
 165                 sta->hs20_ie = NULL;
 166 #endif /* CONFIG_HS20 */
 167
 168 #ifdef CONFIG_FST
 169         wpabuf_free(sta->mb_ies);
 170         if (hapd->iface->fst)
 171                 sta->mb_ies = mb_ies_by_info(&elems.mb_ies);
 172         else
 173                 sta->mb_ies = NULL;
 174 #endif /* CONFIG_FST */
 175
 176         if (hapd->conf->wpa) {
 177                 if (ie == NULL || ielen == 0) {
 178 #ifdef CONFIG_WPS
 179                         if (hapd->conf->wps_state) {
 180                                 wpa_printf(MSG_DEBUG,
 181                                            "STA did not include WPA/RSN IE in (Re)Association Request - possible WPS use");
 182                                 sta->flags |= WLAN_STA_MAYBE_WPS;
 183                                 goto skip_wpa_check;
 184                         }
 185 #endif /* CONFIG_WPS */
 186
 187                         wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
 188                         return -1;
 189                 }
 190 #ifdef CONFIG_WPS
 191                 if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
 192                     os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
 193                         struct wpabuf *wps;
 194
 195                         sta->flags |= WLAN_STA_WPS;
 196                         wps = ieee802_11_vendor_ie_concat(ie, ielen,
 197                                                           WPS_IE_VENDOR_TYPE);
 198                         if (wps) {
 199                                 if (wps_is_20(wps)) {
 200                                         wpa_printf(MSG_DEBUG,
 201                                                    "WPS: STA supports WPS 2.0");
 202                                         sta->flags |= WLAN_STA_WPS2;
 203                                 }
 204                                 wpabuf_free(wps);
 205                         }
 206                         goto skip_wpa_check;
 207                 }
 208 #endif /* CONFIG_WPS */
 209
 210                 if (sta->wpa_sm == NULL)
 211                         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
 212                                                         sta->addr,
 213                                                         p2p_dev_addr);
 214                 if (sta->wpa_sm == NULL) {
 215                         wpa_printf(MSG_ERROR,
 216                                    "Failed to initialize WPA state machine");
 217                         return -1;
 218                 }
 219                 res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
 220                                           ie, ielen,
 221                                           elems.mdie, elems.mdie_len);
 222                 if (res != WPA_IE_OK) {
 223                         wpa_printf(MSG_DEBUG,
 224                                    "WPA/RSN information element rejected? (res %u)",
 225                                    res);
 226                         wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
 227                         if (res == WPA_INVALID_GROUP) {
 228                                 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
 229                                 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
 230                         } else if (res == WPA_INVALID_PAIRWISE) {
 231                                 reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
 232                                 status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
 233                         } else if (res == WPA_INVALID_AKMP) {
 234                                 reason = WLAN_REASON_AKMP_NOT_VALID;
 235                                 status = WLAN_STATUS_AKMP_NOT_VALID;
 236                         }
 237 #ifdef CONFIG_IEEE80211W
 238                         else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
 239                                 reason = WLAN_REASON_INVALID_IE;
 240                                 status = WLAN_STATUS_INVALID_IE;
 241                         } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
 242                                 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
 243                                 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
 244                         }
 245 #endif /* CONFIG_IEEE80211W */
 246                         else {
 247                                 reason = WLAN_REASON_INVALID_IE;
 248                                 status = WLAN_STATUS_INVALID_IE;
 249                         }
 250                         goto fail;
 251                 }
 252 #ifdef CONFIG_IEEE80211W
 253                 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
 254                     sta->sa_query_count > 0)
 255                         ap_check_sa_query_timeout(hapd, sta);
 256                 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
 257                     (sta->auth_alg != WLAN_AUTH_FT)) {
 258                         /*
 259                          * STA has already been associated with MFP and SA
 260                          * Query timeout has not been reached. Reject the
 261                          * association attempt temporarily and start SA Query,
 262                          * if one is not pending.
 263                          */
 264
 265                         if (sta->sa_query_count == 0)
 266                                 ap_sta_start_sa_query(hapd, sta);
 267
 268                         status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
 269
 270                         p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
 271
 272                         hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
 273                                           p - buf);
 274                         return 0;
 275                 }
 276
 277                 if (wpa_auth_uses_mfp(sta->wpa_sm))
 278                         sta->flags |= WLAN_STA_MFP;
 279                 else
 280                         sta->flags &= ~WLAN_STA_MFP;
 281 #endif /* CONFIG_IEEE80211W */
 282
 283 #ifdef CONFIG_IEEE80211R
 284                 if (sta->auth_alg == WLAN_AUTH_FT) {
 285                         status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
 286                                                          req_ies_len);
 287                         if (status != WLAN_STATUS_SUCCESS) {
 288                                 if (status == WLAN_STATUS_INVALID_PMKID)
 289                                         reason = WLAN_REASON_INVALID_IE;
 290                                 if (status == WLAN_STATUS_INVALID_MDIE)
 291                                         reason = WLAN_REASON_INVALID_IE;
 292                                 if (status == WLAN_STATUS_INVALID_FTIE)
 293                                         reason = WLAN_REASON_INVALID_IE;
 294                                 goto fail;
 295                         }
 296                 }
 297 #endif /* CONFIG_IEEE80211R */
 298         } else if (hapd->conf->wps_state) {
 299 #ifdef CONFIG_WPS
 300                 struct wpabuf *wps;
 301
 302                 if (req_ies)
 303                         wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
 304                                                           WPS_IE_VENDOR_TYPE);
 305                 else
 306                         wps = NULL;
 307 #ifdef CONFIG_WPS_STRICT
 308                 if (wps && wps_validate_assoc_req(wps) < 0) {
 309                         reason = WLAN_REASON_INVALID_IE;
 310                         status = WLAN_STATUS_INVALID_IE;
 311                         wpabuf_free(wps);
 312                         goto fail;
 313                 }
 314 #endif /* CONFIG_WPS_STRICT */
 315                 if (wps) {
 316                         sta->flags |= WLAN_STA_WPS;
 317                         if (wps_is_20(wps)) {
 318                                 wpa_printf(MSG_DEBUG,
 319                                            "WPS: STA supports WPS 2.0");
 320                                 sta->flags |= WLAN_STA_WPS2;
 321                         }
 322                 } else
 323                         sta->flags |= WLAN_STA_MAYBE_WPS;
 324                 wpabuf_free(wps);
 325 #endif /* CONFIG_WPS */
 326 #ifdef CONFIG_HS20
 327         } else if (hapd->conf->osen) {
 328                 if (elems.osen == NULL) {
 329                         hostapd_logger(
 330                                 hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 331                                 HOSTAPD_LEVEL_INFO,
 332                                 "No HS 2.0 OSEN element in association request");
 333                         return WLAN_STATUS_INVALID_IE;
 334                 }
 335
 336                 wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
 337                 if (sta->wpa_sm == NULL)
 338                         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
 339                                                         sta->addr, NULL);
 340                 if (sta->wpa_sm == NULL) {
 341                         wpa_printf(MSG_WARNING,
 342                                    "Failed to initialize WPA state machine");
 343                         return WLAN_STATUS_UNSPECIFIED_FAILURE;
 344                 }
 345                 if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
 346                                       elems.osen - 2, elems.osen_len + 2) < 0)
 347                         return WLAN_STATUS_INVALID_IE;
 348 #endif /* CONFIG_HS20 */
 349         }
 350 #ifdef CONFIG_WPS
 351 skip_wpa_check:
 352 #endif /* CONFIG_WPS */
 353
 354 #ifdef CONFIG_IEEE80211R
 355         p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
 356                                         sta->auth_alg, req_ies, req_ies_len);
 357
 358         hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
 359
 360         if (sta->auth_alg == WLAN_AUTH_FT)
 361                 ap_sta_set_authorized(hapd, sta, 1);
 362 #else /* CONFIG_IEEE80211R */
 363         /* Keep compiler silent about unused variables */
 364         if (status) {
 365         }
 366 #endif /* CONFIG_IEEE80211R */
 367
 368         new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
 369         sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
 370         sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
 371
 372         hostapd_set_sta_flags(hapd, sta);
 373
 374         if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
 375                 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
 376         else
 377                 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
 378
 379         hostapd_new_assoc_sta(hapd, sta, !new_assoc);
 380
 381         ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
 382
 383 #ifdef CONFIG_P2P
 384         if (req_ies) {
 385                 p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
 386                                       req_ies, req_ies_len);
 387         }
 388 #endif /* CONFIG_P2P */
 389
 390         return 0;
 391
 392 fail:
 393 #ifdef CONFIG_IEEE80211R
 394         hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
 395 #endif /* CONFIG_IEEE80211R */
 396         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 397         ap_free_sta(hapd, sta);
 398         return -1;
 399 }
 400
 401
 402 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
 403 {
 404         struct sta_info *sta;
 405
 406         if (addr == NULL) {
 407                 /*
 408                  * This could potentially happen with unexpected event from the
 409                  * driver wrapper. This was seen at least in one case where the
 410                  * driver ended up reporting a station mode event while hostapd
 411                  * was running, so better make sure we stop processing such an
 412                  * event here.
 413                  */
 414                 wpa_printf(MSG_DEBUG,
 415                            "hostapd_notif_disassoc: Skip event with no address");
 416                 return;
 417         }
 418
 419         hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
 420                        HOSTAPD_LEVEL_INFO, "disassociated");
 421
 422         sta = ap_get_sta(hapd, addr);
 423         if (sta == NULL) {
 424                 wpa_printf(MSG_DEBUG,
 425                            "Disassociation notification for unknown STA "
 426                            MACSTR, MAC2STR(addr));
 427                 return;
 428         }
 429
 430         ap_sta_set_authorized(hapd, sta, 0);
 431         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
 432         wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
 433         sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
 434         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 435         ap_free_sta(hapd, sta);
 436 }
 437
 438
 439 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
 440 {
 441         struct sta_info *sta = ap_get_sta(hapd, addr);
 442
 443         if (!sta || !hapd->conf->disassoc_low_ack)
 444                 return;
 445
 446         hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
 447                        HOSTAPD_LEVEL_INFO,
 448                        "disconnected due to excessive missing ACKs");
 449         hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
 450         if (sta)
 451                 ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
 452 }
 453
 454
 455 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
 456                              int offset, int width, int cf1, int cf2)
 457 {
 458 #ifdef NEED_AP_MLME
 459         int channel, chwidth, is_dfs;
 460         u8 seg0_idx = 0, seg1_idx = 0;
 461
 462         hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 463                        HOSTAPD_LEVEL_INFO,
 464                        "driver had channel switch: freq=%d, ht=%d, offset=%d, width=%d (%s), cf1=%d, cf2=%d",
 465                        freq, ht, offset, width, channel_width_to_string(width),
 466                        cf1, cf2);
 467
 468         hapd->iface->freq = freq;
 469
 470         channel = hostapd_hw_get_channel(hapd, freq);
 471         if (!channel) {
 472                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 473                                HOSTAPD_LEVEL_WARNING,
 474                                "driver switched to bad channel!");
 475                 return;
 476         }
 477
 478         switch (width) {
 479         case CHAN_WIDTH_80:
 480                 chwidth = VHT_CHANWIDTH_80MHZ;
 481                 break;
 482         case CHAN_WIDTH_80P80:
 483                 chwidth = VHT_CHANWIDTH_80P80MHZ;
 484                 break;
 485         case CHAN_WIDTH_160:
 486                 chwidth = VHT_CHANWIDTH_160MHZ;
 487                 break;
 488         case CHAN_WIDTH_20_NOHT:
 489         case CHAN_WIDTH_20:
 490         case CHAN_WIDTH_40:
 491         default:
 492                 chwidth = VHT_CHANWIDTH_USE_HT;
 493                 break;
 494         }
 495
 496         switch (hapd->iface->current_mode->mode) {
 497         case HOSTAPD_MODE_IEEE80211A:
 498                 if (cf1 > 5000)
 499                         seg0_idx = (cf1 - 5000) / 5;
 500                 if (cf2 > 5000)
 501                         seg1_idx = (cf2 - 5000) / 5;
 502                 break;
 503         default:
 504                 ieee80211_freq_to_chan(cf1, &seg0_idx);
 505                 ieee80211_freq_to_chan(cf2, &seg1_idx);
 506                 break;
 507         }
 508
 509         hapd->iconf->channel = channel;
 510         hapd->iconf->ieee80211n = ht;
 511         if (!ht)
 512                 hapd->iconf->ieee80211ac = 0;
 513         hapd->iconf->secondary_channel = offset;
 514         hapd->iconf->vht_oper_chwidth = chwidth;
 515         hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
 516         hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
 517
 518         is_dfs = ieee80211_is_dfs(freq);
 519
 520         if (hapd->csa_in_progress &&
 521             freq == hapd->cs_freq_params.freq) {
 522                 hostapd_cleanup_cs_params(hapd);
 523                 ieee802_11_set_beacon(hapd);
 524
 525                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
 526                         "freq=%d dfs=%d", freq, is_dfs);
 527         } else if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) {
 528                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
 529                         "freq=%d dfs=%d", freq, is_dfs);
 530         }
 531 #endif /* NEED_AP_MLME */
 532 }
 533
 534
 535 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd,
 536                                          const u8 *addr, int reason_code)
 537 {
 538         switch (reason_code) {
 539         case MAX_CLIENT_REACHED:
 540                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_MAX_STA MACSTR,
 541                         MAC2STR(addr));
 542                 break;
 543         case BLOCKED_CLIENT:
 544                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_BLOCKED_STA MACSTR,
 545                         MAC2STR(addr));
 546                 break;
 547         }
 548 }
 549
 550
 551 #ifdef CONFIG_ACS
 552 void hostapd_acs_channel_selected(struct hostapd_data *hapd,
 553                                   struct acs_selected_channels *acs_res)
 554 {
 555         int ret, i;
 556
 557         if (hapd->iconf->channel) {
 558                 wpa_printf(MSG_INFO, "ACS: Channel was already set to %d",
 559                            hapd->iconf->channel);
 560                 return;
 561         }
 562
 563         if (!hapd->iface->current_mode) {
 564                 for (i = 0; i < hapd->iface->num_hw_features; i++) {
 565                         struct hostapd_hw_modes *mode =
 566                                 &hapd->iface->hw_features[i];
 567
 568                         if (mode->mode == acs_res->hw_mode) {
 569                                 hapd->iface->current_mode = mode;
 570                                 break;
 571                         }
 572                 }
 573                 if (!hapd->iface->current_mode) {
 574                         hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 575                                        HOSTAPD_LEVEL_WARNING,
 576                                        "driver selected to bad hw_mode");
 577                         return;
 578                 }
 579         }
 580
 581         hapd->iface->freq = hostapd_hw_get_freq(hapd, acs_res->pri_channel);
 582
 583         if (!acs_res->pri_channel) {
 584                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 585                                HOSTAPD_LEVEL_WARNING,
 586                                "driver switched to bad channel");
 587                 return;
 588         }
 589
 590         hapd->iconf->channel = acs_res->pri_channel;
 591         hapd->iconf->acs = 1;
 592
 593         if (acs_res->sec_channel == 0)
 594                 hapd->iconf->secondary_channel = 0;
 595         else if (acs_res->sec_channel < acs_res->pri_channel)
 596                 hapd->iconf->secondary_channel = -1;
 597         else if (acs_res->sec_channel > acs_res->pri_channel)
 598                 hapd->iconf->secondary_channel = 1;
 599         else {
 600                 wpa_printf(MSG_ERROR, "Invalid secondary channel!");
 601                 return;
 602         }
 603
 604         if (hapd->iface->conf->ieee80211ac) {
 605                 /* set defaults for backwards compatibility */
 606                 hapd->iconf->vht_oper_centr_freq_seg1_idx = 0;
 607                 hapd->iconf->vht_oper_centr_freq_seg0_idx = 0;
 608                 hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
 609                 if (acs_res->ch_width == 80) {
 610                         hapd->iconf->vht_oper_centr_freq_seg0_idx =
 611                                 acs_res->vht_seg0_center_ch;
 612                         hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
 613                 } else if (acs_res->ch_width == 160) {
 614                         if (acs_res->vht_seg1_center_ch == 0) {
 615                                 hapd->iconf->vht_oper_centr_freq_seg0_idx =
 616                                         acs_res->vht_seg0_center_ch;
 617                                 hapd->iconf->vht_oper_chwidth =
 618                                         VHT_CHANWIDTH_160MHZ;
 619                         } else {
 620                                 hapd->iconf->vht_oper_centr_freq_seg0_idx =
 621                                         acs_res->vht_seg0_center_ch;
 622                                 hapd->iconf->vht_oper_centr_freq_seg1_idx =
 623                                         acs_res->vht_seg1_center_ch;
 624                                 hapd->iconf->vht_oper_chwidth =
 625                                         VHT_CHANWIDTH_80P80MHZ;
 626                         }
 627                 }
 628         }
 629
 630         ret = hostapd_acs_completed(hapd->iface, 0);
 631         if (ret) {
 632                 wpa_printf(MSG_ERROR,
 633                            "ACS: Possibly channel configuration is invalid");
 634         }
 635 }
 636 #endif /* CONFIG_ACS */
 637
 638
 639 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
 640                          const u8 *bssid, const u8 *ie, size_t ie_len,
 641                          int ssi_signal)
 642 {
 643         size_t i;
 644         int ret = 0;
 645
 646         if (sa == NULL || ie == NULL)
 647                 return -1;
 648
 649         random_add_randomness(sa, ETH_ALEN);
 650         for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
 651                 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
 652                                             sa, da, bssid, ie, ie_len,
 653                                             ssi_signal) > 0) {
 654                         ret = 1;
 655                         break;
 656                 }
 657         }
 658         return ret;
 659 }
 660
 661
 662 #ifdef HOSTAPD
 663
 664 #ifdef CONFIG_IEEE80211R
 665 static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst,
 666                                           const u8 *bssid,
 667                                           u16 auth_transaction, u16 status,
 668                                           const u8 *ies, size_t ies_len)
 669 {
 670         struct hostapd_data *hapd = ctx;
 671         struct sta_info *sta;
 672
 673         sta = ap_get_sta(hapd, dst);
 674         if (sta == NULL)
 675                 return;
 676
 677         hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
 678                        HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
 679         sta->flags |= WLAN_STA_AUTH;
 680
 681         hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len);
 682 }
 683 #endif /* CONFIG_IEEE80211R */
 684
 685
 686 static void hostapd_notif_auth(struct hostapd_data *hapd,
 687                                struct auth_info *rx_auth)
 688 {
 689         struct sta_info *sta;
 690         u16 status = WLAN_STATUS_SUCCESS;
 691         u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
 692         size_t resp_ies_len = 0;
 693
 694         sta = ap_get_sta(hapd, rx_auth->peer);
 695         if (!sta) {
 696                 sta = ap_sta_add(hapd, rx_auth->peer);
 697                 if (sta == NULL) {
 698                         status = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
 699                         goto fail;
 700                 }
 701         }
 702         sta->flags &= ~WLAN_STA_PREAUTH;
 703         ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
 704 #ifdef CONFIG_IEEE80211R
 705         if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) {
 706                 sta->auth_alg = WLAN_AUTH_FT;
 707                 if (sta->wpa_sm == NULL)
 708                         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
 709                                                         sta->addr, NULL);
 710                 if (sta->wpa_sm == NULL) {
 711                         wpa_printf(MSG_DEBUG,
 712                                    "FT: Failed to initialize WPA state machine");
 713                         status = WLAN_STATUS_UNSPECIFIED_FAILURE;
 714                         goto fail;
 715                 }
 716                 wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid,
 717                                     rx_auth->auth_transaction, rx_auth->ies,
 718                                     rx_auth->ies_len,
 719                                     hostapd_notify_auth_ft_finish, hapd);
 720                 return;
 721         }
 722 #endif /* CONFIG_IEEE80211R */
 723 fail:
 724         hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1,
 725                          status, resp_ies, resp_ies_len);
 726 }
 727
 728
 729 static void hostapd_action_rx(struct hostapd_data *hapd,
 730                               struct rx_mgmt *drv_mgmt)
 731 {
 732         struct ieee80211_mgmt *mgmt;
 733         struct sta_info *sta;
 734         size_t plen __maybe_unused;
 735         u16 fc;
 736
 737         if (drv_mgmt->frame_len < 24 + 1)
 738                 return;
 739
 740         plen = drv_mgmt->frame_len - 24 - 1;
 741
 742         mgmt = (struct ieee80211_mgmt *) drv_mgmt->frame;
 743         fc = le_to_host16(mgmt->frame_control);
 744         if (WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION)
 745                 return; /* handled by the driver */
 746
 747         wpa_printf(MSG_DEBUG, "RX_ACTION cat %d action plen %d",
 748                    mgmt->u.action.category, (int) plen);
 749
 750         sta = ap_get_sta(hapd, mgmt->sa);
 751         if (sta == NULL) {
 752                 wpa_printf(MSG_DEBUG, "%s: station not found", __func__);
 753                 return;
 754         }
 755 #ifdef CONFIG_IEEE80211R
 756         if (mgmt->u.action.category == WLAN_ACTION_FT) {
 757                 const u8 *payload = drv_mgmt->frame + 24 + 1;
 758
 759                 wpa_ft_action_rx(sta->wpa_sm, payload, plen);
 760         }
 761 #endif /* CONFIG_IEEE80211R */
 762 #ifdef CONFIG_IEEE80211W
 763         if (mgmt->u.action.category == WLAN_ACTION_SA_QUERY && plen >= 4) {
 764                 ieee802_11_sa_query_action(
 765                         hapd, mgmt->sa,
 766                         mgmt->u.action.u.sa_query_resp.action,
 767                         mgmt->u.action.u.sa_query_resp.trans_id);
 768         }
 769 #endif /* CONFIG_IEEE80211W */
 770 #ifdef CONFIG_WNM
 771         if (mgmt->u.action.category == WLAN_ACTION_WNM) {
 772                 ieee802_11_rx_wnm_action_ap(hapd, mgmt, drv_mgmt->frame_len);
 773         }
 774 #endif /* CONFIG_WNM */
 775 #ifdef CONFIG_FST
 776         if (mgmt->u.action.category == WLAN_ACTION_FST && hapd->iface->fst) {
 777                 fst_rx_action(hapd->iface->fst, mgmt, drv_mgmt->frame_len);
 778                 return;
 779         }
 780 #endif /* CONFIG_FST */
 781
 782 }
 783
 784
 785 #ifdef NEED_AP_MLME
 786
 787 #define HAPD_BROADCAST ((struct hostapd_data *) -1)
 788
 789 static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
 790                                             const u8 *bssid)
 791 {
 792         size_t i;
 793
 794         if (bssid == NULL)
 795                 return NULL;
 796         if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
 797             bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
 798                 return HAPD_BROADCAST;
 799
 800         for (i = 0; i < iface->num_bss; i++) {
 801                 if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
 802                         return iface->bss[i];
 803         }
 804
 805         return NULL;
 806 }
 807
 808
 809 static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
 810                                         const u8 *bssid, const u8 *addr,
 811                                         int wds)
 812 {
 813         hapd = get_hapd_bssid(hapd->iface, bssid);
 814         if (hapd == NULL || hapd == HAPD_BROADCAST)
 815                 return;
 816
 817         ieee802_11_rx_from_unknown(hapd, addr, wds);
 818 }
 819
 820
 821 static int hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
 822 {
 823         struct hostapd_iface *iface = hapd->iface;
 824         const struct ieee80211_hdr *hdr;
 825         const u8 *bssid;
 826         struct hostapd_frame_info fi;
 827         int ret;
 828
 829 #ifdef CONFIG_TESTING_OPTIONS
 830         if (hapd->ext_mgmt_frame_handling) {
 831                 size_t hex_len = 2 * rx_mgmt->frame_len + 1;
 832                 char *hex = os_malloc(hex_len);
 833
 834                 if (hex) {
 835                         wpa_snprintf_hex(hex, hex_len, rx_mgmt->frame,
 836                                          rx_mgmt->frame_len);
 837                         wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-RX %s", hex);
 838                         os_free(hex);
 839                 }
 840                 return 1;
 841         }
 842 #endif /* CONFIG_TESTING_OPTIONS */
 843
 844         hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
 845         bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
 846         if (bssid == NULL)
 847                 return 0;
 848
 849         hapd = get_hapd_bssid(iface, bssid);
 850         if (hapd == NULL) {
 851                 u16 fc = le_to_host16(hdr->frame_control);
 852
 853                 /*
 854                  * Drop frames to unknown BSSIDs except for Beacon frames which
 855                  * could be used to update neighbor information.
 856                  */
 857                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
 858                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
 859                         hapd = iface->bss[0];
 860                 else
 861                         return 0;
 862         }
 863
 864         os_memset(&fi, 0, sizeof(fi));
 865         fi.datarate = rx_mgmt->datarate;
 866         fi.ssi_signal = rx_mgmt->ssi_signal;
 867
 868         if (hapd == HAPD_BROADCAST) {
 869                 size_t i;
 870
 871                 ret = 0;
 872                 for (i = 0; i < iface->num_bss; i++) {
 873                         /* if bss is set, driver will call this function for
 874                          * each bss individually. */
 875                         if (rx_mgmt->drv_priv &&
 876                             (iface->bss[i]->drv_priv != rx_mgmt->drv_priv))
 877                                 continue;
 878
 879                         if (ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
 880                                             rx_mgmt->frame_len, &fi) > 0)
 881                                 ret = 1;
 882                 }
 883         } else
 884                 ret = ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len,
 885                                       &fi);
 886
 887         random_add_randomness(&fi, sizeof(fi));
 888
 889         return ret;
 890 }
 891
 892
 893 static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
 894                                size_t len, u16 stype, int ok)
 895 {
 896         struct ieee80211_hdr *hdr;
 897
 898         hdr = (struct ieee80211_hdr *) buf;
 899         hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
 900         if (hapd == NULL || hapd == HAPD_BROADCAST)
 901                 return;
 902         ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
 903 }
 904
 905 #endif /* NEED_AP_MLME */
 906
 907
 908 static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
 909 {
 910         struct sta_info *sta = ap_get_sta(hapd, addr);
 911
 912         if (sta)
 913                 return 0;
 914
 915         wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
 916                    " - adding a new STA", MAC2STR(addr));
 917         sta = ap_sta_add(hapd, addr);
 918         if (sta) {
 919                 hostapd_new_assoc_sta(hapd, sta, 0);
 920         } else {
 921                 wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
 922                            MAC2STR(addr));
 923                 return -1;
 924         }
 925
 926         return 0;
 927 }
 928
 929
 930 static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
 931                                    const u8 *data, size_t data_len)
 932 {
 933         struct hostapd_iface *iface = hapd->iface;
 934         struct sta_info *sta;
 935         size_t j;
 936
 937         for (j = 0; j < iface->num_bss; j++) {
 938                 sta = ap_get_sta(iface->bss[j], src);
 939                 if (sta && sta->flags & WLAN_STA_ASSOC) {
 940                         hapd = iface->bss[j];
 941                         break;
 942                 }
 943         }
 944
 945         ieee802_1x_receive(hapd, src, data, data_len);
 946 }
 947
 948 #endif /* HOSTAPD */
 949
 950
 951 static struct hostapd_channel_data * hostapd_get_mode_channel(
 952         struct hostapd_iface *iface, unsigned int freq)
 953 {
 954         int i;
 955         struct hostapd_channel_data *chan;
 956
 957         for (i = 0; i < iface->current_mode->num_channels; i++) {
 958                 chan = &iface->current_mode->channels[i];
 959                 if (!chan)
 960                         return NULL;
 961                 if ((unsigned int) chan->freq == freq)
 962                         return chan;
 963         }
 964
 965         return NULL;
 966 }
 967
 968
 969 static void hostapd_update_nf(struct hostapd_iface *iface,
 970                               struct hostapd_channel_data *chan,
 971                               struct freq_survey *survey)
 972 {
 973         if (!iface->chans_surveyed) {
 974                 chan->min_nf = survey->nf;
 975                 iface->lowest_nf = survey->nf;
 976         } else {
 977                 if (dl_list_empty(&chan->survey_list))
 978                         chan->min_nf = survey->nf;
 979                 else if (survey->nf < chan->min_nf)
 980                         chan->min_nf = survey->nf;
 981                 if (survey->nf < iface->lowest_nf)
 982                         iface->lowest_nf = survey->nf;
 983         }
 984 }
 985
 986
 987 static void hostapd_single_channel_get_survey(struct hostapd_iface *iface,
 988                                               struct survey_results *survey_res)
 989 {
 990         struct hostapd_channel_data *chan;
 991         struct freq_survey *survey;
 992         u64 divisor, dividend;
 993
 994         survey = dl_list_first(&survey_res->survey_list, struct freq_survey,
 995                                list);
 996         if (!survey || !survey->freq)
 997                 return;
 998
 999         chan = hostapd_get_mode_channel(iface, survey->freq);
1000         if (!chan || chan->flag & HOSTAPD_CHAN_DISABLED)
1001                 return;
1002
1003         wpa_printf(MSG_DEBUG,
1004                    "Single Channel Survey: (freq=%d channel_time=%ld channel_time_busy=%ld)",
1005                    survey->freq,
1006                    (unsigned long int) survey->channel_time,
1007                    (unsigned long int) survey->channel_time_busy);
1008
1009         if (survey->channel_time > iface->last_channel_time &&
1010             survey->channel_time > survey->channel_time_busy) {
1011                 dividend = survey->channel_time_busy -
1012                         iface->last_channel_time_busy;
1013                 divisor = survey->channel_time - iface->last_channel_time;
1014
1015                 iface->channel_utilization = dividend * 255 / divisor;
1016                 wpa_printf(MSG_DEBUG, "Channel Utilization: %d",
1017                            iface->channel_utilization);
1018         }
1019         iface->last_channel_time = survey->channel_time;
1020         iface->last_channel_time_busy = survey->channel_time_busy;
1021 }
1022
1023
1024 void hostapd_event_get_survey(struct hostapd_iface *iface,
1025                               struct survey_results *survey_results)
1026 {
1027         struct freq_survey *survey, *tmp;
1028         struct hostapd_channel_data *chan;
1029
1030         if (dl_list_empty(&survey_results->survey_list)) {
1031                 wpa_printf(MSG_DEBUG, "No survey data received");
1032                 return;
1033         }
1034
1035         if (survey_results->freq_filter) {
1036                 hostapd_single_channel_get_survey(iface, survey_results);
1037                 return;
1038         }
1039
1040         dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
1041                               struct freq_survey, list) {
1042                 chan = hostapd_get_mode_channel(iface, survey->freq);
1043                 if (!chan)
1044                         continue;
1045                 if (chan->flag & HOSTAPD_CHAN_DISABLED)
1046                         continue;
1047
1048                 dl_list_del(&survey->list);
1049                 dl_list_add_tail(&chan->survey_list, &survey->list);
1050
1051                 hostapd_update_nf(iface, chan, survey);
1052
1053                 iface->chans_surveyed++;
1054         }
1055 }
1056
1057
1058 #ifdef HOSTAPD
1059 #ifdef NEED_AP_MLME
1060
1061 static void hostapd_event_iface_unavailable(struct hostapd_data *hapd)
1062 {
1063         wpa_printf(MSG_DEBUG, "Interface %s is unavailable -- stopped",
1064                    hapd->conf->iface);
1065
1066         if (hapd->csa_in_progress) {
1067                 wpa_printf(MSG_INFO, "CSA failed (%s was stopped)",
1068                            hapd->conf->iface);
1069                 hostapd_switch_channel_fallback(hapd->iface,
1070                                                 &hapd->cs_freq_params);
1071         }
1072 }
1073
1074
1075 static void hostapd_event_dfs_radar_detected(struct hostapd_data *hapd,
1076                                              struct dfs_event *radar)
1077 {
1078         wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1079         hostapd_dfs_radar_detected(hapd->iface, radar->freq, radar->ht_enabled,
1080                                    radar->chan_offset, radar->chan_width,
1081                                    radar->cf1, radar->cf2);
1082 }
1083
1084
1085 static void hostapd_event_dfs_cac_finished(struct hostapd_data *hapd,
1086                                            struct dfs_event *radar)
1087 {
1088         wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1089         hostapd_dfs_complete_cac(hapd->iface, 1, radar->freq, radar->ht_enabled,
1090                                  radar->chan_offset, radar->chan_width,
1091                                  radar->cf1, radar->cf2);
1092 }
1093
1094
1095 static void hostapd_event_dfs_cac_aborted(struct hostapd_data *hapd,
1096                                           struct dfs_event *radar)
1097 {
1098         wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1099         hostapd_dfs_complete_cac(hapd->iface, 0, radar->freq, radar->ht_enabled,
1100                                  radar->chan_offset, radar->chan_width,
1101                                  radar->cf1, radar->cf2);
1102 }
1103
1104
1105 static void hostapd_event_dfs_nop_finished(struct hostapd_data *hapd,
1106                                            struct dfs_event *radar)
1107 {
1108         wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1109         hostapd_dfs_nop_finished(hapd->iface, radar->freq, radar->ht_enabled,
1110                                  radar->chan_offset, radar->chan_width,
1111                                  radar->cf1, radar->cf2);
1112 }
1113
1114
1115 static void hostapd_event_dfs_cac_started(struct hostapd_data *hapd,
1116                                           struct dfs_event *radar)
1117 {
1118         wpa_printf(MSG_DEBUG, "DFS offload CAC started on %d MHz", radar->freq);
1119         hostapd_dfs_start_cac(hapd->iface, radar->freq, radar->ht_enabled,
1120                               radar->chan_offset, radar->chan_width,
1121                               radar->cf1, radar->cf2);
1122 }
1123
1124 #endif /* NEED_AP_MLME */
1125
1126
1127 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1128                           union wpa_event_data *data)
1129 {
1130         struct hostapd_data *hapd = ctx;
1131 #ifndef CONFIG_NO_STDOUT_DEBUG
1132         int level = MSG_DEBUG;
1133
1134         if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
1135             data->rx_mgmt.frame_len >= 24) {
1136                 const struct ieee80211_hdr *hdr;
1137                 u16 fc;
1138
1139                 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
1140                 fc = le_to_host16(hdr->frame_control);
1141                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1142                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
1143                         level = MSG_EXCESSIVE;
1144                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1145                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_REQ)
1146                         level = MSG_EXCESSIVE;
1147         }
1148
1149         wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
1150                 event_to_string(event), event);
1151 #endif /* CONFIG_NO_STDOUT_DEBUG */
1152
1153         switch (event) {
1154         case EVENT_MICHAEL_MIC_FAILURE:
1155                 michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
1156                 break;
1157         case EVENT_SCAN_RESULTS:
1158                 if (hapd->iface->scan_cb)
1159                         hapd->iface->scan_cb(hapd->iface);
1160                 break;
1161         case EVENT_WPS_BUTTON_PUSHED:
1162                 hostapd_wps_button_pushed(hapd, NULL);
1163                 break;
1164 #ifdef NEED_AP_MLME
1165         case EVENT_TX_STATUS:
1166                 switch (data->tx_status.type) {
1167                 case WLAN_FC_TYPE_MGMT:
1168                         hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
1169                                            data->tx_status.data_len,
1170                                            data->tx_status.stype,
1171                                            data->tx_status.ack);
1172                         break;
1173                 case WLAN_FC_TYPE_DATA:
1174                         hostapd_tx_status(hapd, data->tx_status.dst,
1175                                           data->tx_status.data,
1176                                           data->tx_status.data_len,
1177                                           data->tx_status.ack);
1178                         break;
1179                 }
1180                 break;
1181         case EVENT_EAPOL_TX_STATUS:
1182                 hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
1183                                         data->eapol_tx_status.data,
1184                                         data->eapol_tx_status.data_len,
1185                                         data->eapol_tx_status.ack);
1186                 break;
1187         case EVENT_DRIVER_CLIENT_POLL_OK:
1188                 hostapd_client_poll_ok(hapd, data->client_poll.addr);
1189                 break;
1190         case EVENT_RX_FROM_UNKNOWN:
1191                 hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
1192                                             data->rx_from_unknown.addr,
1193                                             data->rx_from_unknown.wds);
1194                 break;
1195 #endif /* NEED_AP_MLME */
1196         case EVENT_RX_MGMT:
1197                 if (!data->rx_mgmt.frame)
1198                         break;
1199 #ifdef NEED_AP_MLME
1200                 if (hostapd_mgmt_rx(hapd, &data->rx_mgmt) > 0)
1201                         break;
1202 #endif /* NEED_AP_MLME */
1203                 hostapd_action_rx(hapd, &data->rx_mgmt);
1204                 break;
1205         case EVENT_RX_PROBE_REQ:
1206                 if (data->rx_probe_req.sa == NULL ||
1207                     data->rx_probe_req.ie == NULL)
1208                         break;
1209                 hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
1210                                      data->rx_probe_req.da,
1211                                      data->rx_probe_req.bssid,
1212                                      data->rx_probe_req.ie,
1213                                      data->rx_probe_req.ie_len,
1214                                      data->rx_probe_req.ssi_signal);
1215                 break;
1216         case EVENT_NEW_STA:
1217                 hostapd_event_new_sta(hapd, data->new_sta.addr);
1218                 break;
1219         case EVENT_EAPOL_RX:
1220                 hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
1221                                        data->eapol_rx.data,
1222                                        data->eapol_rx.data_len);
1223                 break;
1224         case EVENT_ASSOC:
1225                 if (!data)
1226                         return;
1227                 hostapd_notif_assoc(hapd, data->assoc_info.addr,
1228                                     data->assoc_info.req_ies,
1229                                     data->assoc_info.req_ies_len,
1230                                     data->assoc_info.reassoc);
1231                 break;
1232         case EVENT_DISASSOC:
1233                 if (data)
1234                         hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
1235                 break;
1236         case EVENT_DEAUTH:
1237                 if (data)
1238                         hostapd_notif_disassoc(hapd, data->deauth_info.addr);
1239                 break;
1240         case EVENT_STATION_LOW_ACK:
1241                 if (!data)
1242                         break;
1243                 hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
1244                 break;
1245         case EVENT_AUTH:
1246                 hostapd_notif_auth(hapd, &data->auth);
1247                 break;
1248         case EVENT_CH_SWITCH:
1249                 if (!data)
1250                         break;
1251                 hostapd_event_ch_switch(hapd, data->ch_switch.freq,
1252                                         data->ch_switch.ht_enabled,
1253                                         data->ch_switch.ch_offset,
1254                                         data->ch_switch.ch_width,
1255                                         data->ch_switch.cf1,
1256                                         data->ch_switch.cf2);
1257                 break;
1258         case EVENT_CONNECT_FAILED_REASON:
1259                 if (!data)
1260                         break;
1261                 hostapd_event_connect_failed_reason(
1262                         hapd, data->connect_failed_reason.addr,
1263                         data->connect_failed_reason.code);
1264                 break;
1265         case EVENT_SURVEY:
1266                 hostapd_event_get_survey(hapd->iface, &data->survey_results);
1267                 break;
1268 #ifdef NEED_AP_MLME
1269         case EVENT_INTERFACE_UNAVAILABLE:
1270                 hostapd_event_iface_unavailable(hapd);
1271                 break;
1272         case EVENT_DFS_RADAR_DETECTED:
1273                 if (!data)
1274                         break;
1275                 hostapd_event_dfs_radar_detected(hapd, &data->dfs_event);
1276                 break;
1277         case EVENT_DFS_CAC_FINISHED:
1278                 if (!data)
1279                         break;
1280                 hostapd_event_dfs_cac_finished(hapd, &data->dfs_event);
1281                 break;
1282         case EVENT_DFS_CAC_ABORTED:
1283                 if (!data)
1284                         break;
1285                 hostapd_event_dfs_cac_aborted(hapd, &data->dfs_event);
1286                 break;
1287         case EVENT_DFS_NOP_FINISHED:
1288                 if (!data)
1289                         break;
1290                 hostapd_event_dfs_nop_finished(hapd, &data->dfs_event);
1291                 break;
1292         case EVENT_CHANNEL_LIST_CHANGED:
1293                 /* channel list changed (regulatory?), update channel list */
1294                 /* TODO: check this. hostapd_get_hw_features() initializes
1295                  * too much stuff. */
1296                 /* hostapd_get_hw_features(hapd->iface); */
1297                 hostapd_channel_list_updated(
1298                         hapd->iface, data->channel_list_changed.initiator);
1299                 break;
1300         case EVENT_DFS_CAC_STARTED:
1301                 if (!data)
1302                         break;
1303                 hostapd_event_dfs_cac_started(hapd, &data->dfs_event);
1304                 break;
1305 #endif /* NEED_AP_MLME */
1306         case EVENT_INTERFACE_ENABLED:
1307                 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_ENABLED);
1308                 if (hapd->disabled && hapd->started) {
1309                         hapd->disabled = 0;
1310                         /*
1311                          * Try to re-enable interface if the driver stopped it
1312                          * when the interface got disabled.
1313                          */
1314                         wpa_auth_reconfig_group_keys(hapd->wpa_auth);
1315                         hapd->reenable_beacon = 1;
1316                         ieee802_11_set_beacon(hapd);
1317                 }
1318                 break;
1319         case EVENT_INTERFACE_DISABLED:
1320                 hostapd_free_stas(hapd);
1321                 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_DISABLED);
1322                 hapd->disabled = 1;
1323                 break;
1324 #ifdef CONFIG_ACS
1325         case EVENT_ACS_CHANNEL_SELECTED:
1326                 hostapd_acs_channel_selected(hapd,
1327                                              &data->acs_selected_channels);
1328                 break;
1329 #endif /* CONFIG_ACS */
1330         default:
1331                 wpa_printf(MSG_DEBUG, "Unknown event %d", event);
1332                 break;
1333         }
1334 }
1335
1336 #endif /* HOSTAPD */