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