libeap/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 #include "mbo_ap.h"
  38
  39
  40 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
  41                         const u8 *req_ies, size_t req_ies_len, int reassoc)
  42 {
  43         struct sta_info *sta;
  44         int new_assoc, res;
  45         struct ieee802_11_elems elems;
  46         const u8 *ie;
  47         size_t ielen;
  48 #if defined(CONFIG_IEEE80211R) || defined(CONFIG_IEEE80211W)
  49         u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
  50         u8 *p = buf;
  51 #endif /* CONFIG_IEEE80211R || CONFIG_IEEE80211W */
  52         u16 reason = WLAN_REASON_UNSPECIFIED;
  53         u16 status = WLAN_STATUS_SUCCESS;
  54         const u8 *p2p_dev_addr = NULL;
  55
  56         if (addr == NULL) {
  57                 /*
  58                  * This could potentially happen with unexpected event from the
  59                  * driver wrapper. This was seen at least in one case where the
  60                  * driver ended up being set to station mode while hostapd was
  61                  * running, so better make sure we stop processing such an
  62                  * event here.
  63                  */
  64                 wpa_printf(MSG_DEBUG,
  65                            "hostapd_notif_assoc: Skip event with no address");
  66                 return -1;
  67         }
  68         random_add_randomness(addr, ETH_ALEN);
  69
  70         hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
  71                        HOSTAPD_LEVEL_INFO, "associated");
  72
  73         ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
  74         if (elems.wps_ie) {
  75                 ie = elems.wps_ie - 2;
  76                 ielen = elems.wps_ie_len + 2;
  77                 wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
  78         } else if (elems.rsn_ie) {
  79                 ie = elems.rsn_ie - 2;
  80                 ielen = elems.rsn_ie_len + 2;
  81                 wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
  82         } else if (elems.wpa_ie) {
  83                 ie = elems.wpa_ie - 2;
  84                 ielen = elems.wpa_ie_len + 2;
  85                 wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
  86 #ifdef CONFIG_HS20
  87         } else if (elems.osen) {
  88                 ie = elems.osen - 2;
  89                 ielen = elems.osen_len + 2;
  90                 wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
  91 #endif /* CONFIG_HS20 */
  92         } else {
  93                 ie = NULL;
  94                 ielen = 0;
  95                 wpa_printf(MSG_DEBUG,
  96                            "STA did not include WPS/RSN/WPA IE in (Re)AssocReq");
  97         }
  98
  99         sta = ap_get_sta(hapd, addr);
 100         if (sta) {
 101                 ap_sta_no_session_timeout(hapd, sta);
 102                 accounting_sta_stop(hapd, sta);
 103
 104                 /*
 105                  * Make sure that the previously registered inactivity timer
 106                  * will not remove the STA immediately.
 107                  */
 108                 sta->timeout_next = STA_NULLFUNC;
 109         } else {
 110                 sta = ap_sta_add(hapd, addr);
 111                 if (sta == NULL) {
 112                         hostapd_drv_sta_disassoc(hapd, addr,
 113                                                  WLAN_REASON_DISASSOC_AP_BUSY);
 114                         return -1;
 115                 }
 116         }
 117         sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
 118
 119         /*
 120          * ACL configurations to the drivers (implementing AP SME and ACL
 121          * offload) without hostapd's knowledge, can result in a disconnection
 122          * though the driver accepts the connection. Skip the hostapd check for
 123          * ACL if the driver supports ACL offload to avoid potentially
 124          * conflicting ACL rules.
 125          */
 126         if (hapd->iface->drv_max_acl_mac_addrs == 0 &&
 127             hostapd_check_acl(hapd, addr, NULL) != HOSTAPD_ACL_ACCEPT) {
 128                 wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect",
 129                            MAC2STR(addr));
 130                 reason = WLAN_REASON_UNSPECIFIED;
 131                 goto fail;
 132         }
 133
 134 #ifdef CONFIG_P2P
 135         if (elems.p2p) {
 136                 wpabuf_free(sta->p2p_ie);
 137                 sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
 138                                                           P2P_IE_VENDOR_TYPE);
 139                 if (sta->p2p_ie)
 140                         p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
 141         }
 142 #endif /* CONFIG_P2P */
 143
 144 #ifdef CONFIG_IEEE80211N
 145 #ifdef NEED_AP_MLME
 146         if (elems.ht_capabilities &&
 147             (hapd->iface->conf->ht_capab &
 148              HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
 149                 struct ieee80211_ht_capabilities *ht_cap =
 150                         (struct ieee80211_ht_capabilities *)
 151                         elems.ht_capabilities;
 152
 153                 if (le_to_host16(ht_cap->ht_capabilities_info) &
 154                     HT_CAP_INFO_40MHZ_INTOLERANT)
 155                         ht40_intolerant_add(hapd->iface, sta);
 156         }
 157 #endif /* NEED_AP_MLME */
 158 #endif /* CONFIG_IEEE80211N */
 159
 160 #ifdef CONFIG_INTERWORKING
 161         if (elems.ext_capab && elems.ext_capab_len > 4) {
 162                 if (elems.ext_capab[4] & 0x01)
 163                         sta->qos_map_enabled = 1;
 164         }
 165 #endif /* CONFIG_INTERWORKING */
 166
 167 #ifdef CONFIG_HS20
 168         wpabuf_free(sta->hs20_ie);
 169         if (elems.hs20 && elems.hs20_len > 4) {
 170                 sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
 171                                                  elems.hs20_len - 4);
 172         } else
 173                 sta->hs20_ie = NULL;
 174 #endif /* CONFIG_HS20 */
 175
 176 #ifdef CONFIG_FST
 177         wpabuf_free(sta->mb_ies);
 178         if (hapd->iface->fst)
 179                 sta->mb_ies = mb_ies_by_info(&elems.mb_ies);
 180         else
 181                 sta->mb_ies = NULL;
 182 #endif /* CONFIG_FST */
 183
 184         mbo_ap_check_sta_assoc(hapd, sta, &elems);
 185
 186         ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes,
 187                                     elems.supp_op_classes_len);
 188
 189         if (hapd->conf->wpa) {
 190                 if (ie == NULL || ielen == 0) {
 191 #ifdef CONFIG_WPS
 192                         if (hapd->conf->wps_state) {
 193                                 wpa_printf(MSG_DEBUG,
 194                                            "STA did not include WPA/RSN IE in (Re)Association Request - possible WPS use");
 195                                 sta->flags |= WLAN_STA_MAYBE_WPS;
 196                                 goto skip_wpa_check;
 197                         }
 198 #endif /* CONFIG_WPS */
 199
 200                         wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
 201                         return -1;
 202                 }
 203 #ifdef CONFIG_WPS
 204                 if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
 205                     os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
 206                         struct wpabuf *wps;
 207
 208                         sta->flags |= WLAN_STA_WPS;
 209                         wps = ieee802_11_vendor_ie_concat(ie, ielen,
 210                                                           WPS_IE_VENDOR_TYPE);
 211                         if (wps) {
 212                                 if (wps_is_20(wps)) {
 213                                         wpa_printf(MSG_DEBUG,
 214                                                    "WPS: STA supports WPS 2.0");
 215                                         sta->flags |= WLAN_STA_WPS2;
 216                                 }
 217                                 wpabuf_free(wps);
 218                         }
 219                         goto skip_wpa_check;
 220                 }
 221 #endif /* CONFIG_WPS */
 222
 223                 if (sta->wpa_sm == NULL)
 224                         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
 225                                                         sta->addr,
 226                                                         p2p_dev_addr);
 227                 if (sta->wpa_sm == NULL) {
 228                         wpa_printf(MSG_ERROR,
 229                                    "Failed to initialize WPA state machine");
 230                         return -1;
 231                 }
 232                 res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
 233                                           ie, ielen,
 234                                           elems.mdie, elems.mdie_len);
 235                 if (res != WPA_IE_OK) {
 236                         wpa_printf(MSG_DEBUG,
 237                                    "WPA/RSN information element rejected? (res %u)",
 238                                    res);
 239                         wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
 240                         if (res == WPA_INVALID_GROUP) {
 241                                 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
 242                                 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
 243                         } else if (res == WPA_INVALID_PAIRWISE) {
 244                                 reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
 245                                 status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
 246                         } else if (res == WPA_INVALID_AKMP) {
 247                                 reason = WLAN_REASON_AKMP_NOT_VALID;
 248                                 status = WLAN_STATUS_AKMP_NOT_VALID;
 249                         }
 250 #ifdef CONFIG_IEEE80211W
 251                         else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
 252                                 reason = WLAN_REASON_INVALID_IE;
 253                                 status = WLAN_STATUS_INVALID_IE;
 254                         } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
 255                                 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
 256                                 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
 257                         }
 258 #endif /* CONFIG_IEEE80211W */
 259                         else {
 260                                 reason = WLAN_REASON_INVALID_IE;
 261                                 status = WLAN_STATUS_INVALID_IE;
 262                         }
 263                         goto fail;
 264                 }
 265 #ifdef CONFIG_IEEE80211W
 266                 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
 267                     sta->sa_query_count > 0)
 268                         ap_check_sa_query_timeout(hapd, sta);
 269                 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
 270                     (sta->auth_alg != WLAN_AUTH_FT)) {
 271                         /*
 272                          * STA has already been associated with MFP and SA
 273                          * Query timeout has not been reached. Reject the
 274                          * association attempt temporarily and start SA Query,
 275                          * if one is not pending.
 276                          */
 277
 278                         if (sta->sa_query_count == 0)
 279                                 ap_sta_start_sa_query(hapd, sta);
 280
 281                         status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
 282
 283                         p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
 284
 285                         hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
 286                                           p - buf);
 287                         return 0;
 288                 }
 289
 290                 if (wpa_auth_uses_mfp(sta->wpa_sm))
 291                         sta->flags |= WLAN_STA_MFP;
 292                 else
 293                         sta->flags &= ~WLAN_STA_MFP;
 294 #endif /* CONFIG_IEEE80211W */
 295
 296 #ifdef CONFIG_IEEE80211R
 297                 if (sta->auth_alg == WLAN_AUTH_FT) {
 298                         status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
 299                                                          req_ies_len);
 300                         if (status != WLAN_STATUS_SUCCESS) {
 301                                 if (status == WLAN_STATUS_INVALID_PMKID)
 302                                         reason = WLAN_REASON_INVALID_IE;
 303                                 if (status == WLAN_STATUS_INVALID_MDIE)
 304                                         reason = WLAN_REASON_INVALID_IE;
 305                                 if (status == WLAN_STATUS_INVALID_FTIE)
 306                                         reason = WLAN_REASON_INVALID_IE;
 307                                 goto fail;
 308                         }
 309                 }
 310 #endif /* CONFIG_IEEE80211R */
 311         } else if (hapd->conf->wps_state) {
 312 #ifdef CONFIG_WPS
 313                 struct wpabuf *wps;
 314
 315                 if (req_ies)
 316                         wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
 317                                                           WPS_IE_VENDOR_TYPE);
 318                 else
 319                         wps = NULL;
 320 #ifdef CONFIG_WPS_STRICT
 321                 if (wps && wps_validate_assoc_req(wps) < 0) {
 322                         reason = WLAN_REASON_INVALID_IE;
 323                         status = WLAN_STATUS_INVALID_IE;
 324                         wpabuf_free(wps);
 325                         goto fail;
 326                 }
 327 #endif /* CONFIG_WPS_STRICT */
 328                 if (wps) {
 329                         sta->flags |= WLAN_STA_WPS;
 330                         if (wps_is_20(wps)) {
 331                                 wpa_printf(MSG_DEBUG,
 332                                            "WPS: STA supports WPS 2.0");
 333                                 sta->flags |= WLAN_STA_WPS2;
 334                         }
 335                 } else
 336                         sta->flags |= WLAN_STA_MAYBE_WPS;
 337                 wpabuf_free(wps);
 338 #endif /* CONFIG_WPS */
 339 #ifdef CONFIG_HS20
 340         } else if (hapd->conf->osen) {
 341                 if (elems.osen == NULL) {
 342                         hostapd_logger(
 343                                 hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 344                                 HOSTAPD_LEVEL_INFO,
 345                                 "No HS 2.0 OSEN element in association request");
 346                         return WLAN_STATUS_INVALID_IE;
 347                 }
 348
 349                 wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
 350                 if (sta->wpa_sm == NULL)
 351                         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
 352                                                         sta->addr, NULL);
 353                 if (sta->wpa_sm == NULL) {
 354                         wpa_printf(MSG_WARNING,
 355                                    "Failed to initialize WPA state machine");
 356                         return WLAN_STATUS_UNSPECIFIED_FAILURE;
 357                 }
 358                 if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
 359                                       elems.osen - 2, elems.osen_len + 2) < 0)
 360                         return WLAN_STATUS_INVALID_IE;
 361 #endif /* CONFIG_HS20 */
 362         }
 363
 364 #ifdef CONFIG_MBO
 365         if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) &&
 366             elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) &&
 367             hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
 368                 wpa_printf(MSG_INFO,
 369                            "MBO: Reject WPA2 association without PMF");
 370                 return WLAN_STATUS_UNSPECIFIED_FAILURE;
 371         }
 372 #endif /* CONFIG_MBO */
 373
 374 #ifdef CONFIG_WPS
 375 skip_wpa_check:
 376 #endif /* CONFIG_WPS */
 377
 378 #ifdef CONFIG_IEEE80211R
 379         p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
 380                                         sta->auth_alg, req_ies, req_ies_len);
 381
 382         hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
 383
 384         if (sta->auth_alg == WLAN_AUTH_FT)
 385                 ap_sta_set_authorized(hapd, sta, 1);
 386 #else /* CONFIG_IEEE80211R */
 387         /* Keep compiler silent about unused variables */
 388         if (status) {
 389         }
 390 #endif /* CONFIG_IEEE80211R */
 391
 392         new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
 393         sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
 394         sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
 395
 396         hostapd_set_sta_flags(hapd, sta);
 397
 398         if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
 399                 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
 400         else
 401                 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
 402
 403         hostapd_new_assoc_sta(hapd, sta, !new_assoc);
 404
 405         ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
 406
 407 #ifdef CONFIG_P2P
 408         if (req_ies) {
 409                 p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
 410                                       req_ies, req_ies_len);
 411         }
 412 #endif /* CONFIG_P2P */
 413
 414         return 0;
 415
 416 fail:
 417 #ifdef CONFIG_IEEE80211R
 418         hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
 419 #endif /* CONFIG_IEEE80211R */
 420         hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
 421         ap_free_sta(hapd, sta);
 422         return -1;
 423 }
 424
 425
 426 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
 427 {
 428         struct sta_info *sta;
 429
 430         if (addr == NULL) {
 431                 /*
 432                  * This could potentially happen with unexpected event from the
 433                  * driver wrapper. This was seen at least in one case where the
 434                  * driver ended up reporting a station mode event while hostapd
 435                  * was running, so better make sure we stop processing such an
 436                  * event here.
 437                  */
 438                 wpa_printf(MSG_DEBUG,
 439                            "hostapd_notif_disassoc: Skip event with no address");
 440                 return;
 441         }
 442
 443         hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
 444                        HOSTAPD_LEVEL_INFO, "disassociated");
 445
 446         sta = ap_get_sta(hapd, addr);
 447         if (sta == NULL) {
 448                 wpa_printf(MSG_DEBUG,
 449                            "Disassociation notification for unknown STA "
 450                            MACSTR, MAC2STR(addr));
 451                 return;
 452         }
 453
 454         ap_sta_set_authorized(hapd, sta, 0);
 455         sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
 456         wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
 457         sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
 458         ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
 459         ap_free_sta(hapd, sta);
 460 }
 461
 462
 463 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
 464 {
 465         struct sta_info *sta = ap_get_sta(hapd, addr);
 466
 467         if (!sta || !hapd->conf->disassoc_low_ack)
 468                 return;
 469
 470         hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
 471                        HOSTAPD_LEVEL_INFO,
 472                        "disconnected due to excessive missing ACKs");
 473         hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
 474         if (sta)
 475                 ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
 476 }
 477
 478
 479 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
 480                              int offset, int width, int cf1, int cf2)
 481 {
 482 #ifdef NEED_AP_MLME
 483         int channel, chwidth, is_dfs;
 484         u8 seg0_idx = 0, seg1_idx = 0;
 485
 486         hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 487                        HOSTAPD_LEVEL_INFO,
 488                        "driver had channel switch: freq=%d, ht=%d, offset=%d, width=%d (%s), cf1=%d, cf2=%d",
 489                        freq, ht, offset, width, channel_width_to_string(width),
 490                        cf1, cf2);
 491
 492         hapd->iface->freq = freq;
 493
 494         channel = hostapd_hw_get_channel(hapd, freq);
 495         if (!channel) {
 496                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 497                                HOSTAPD_LEVEL_WARNING,
 498                                "driver switched to bad channel!");
 499                 return;
 500         }
 501
 502         switch (width) {
 503         case CHAN_WIDTH_80:
 504                 chwidth = VHT_CHANWIDTH_80MHZ;
 505                 break;
 506         case CHAN_WIDTH_80P80:
 507                 chwidth = VHT_CHANWIDTH_80P80MHZ;
 508                 break;
 509         case CHAN_WIDTH_160:
 510                 chwidth = VHT_CHANWIDTH_160MHZ;
 511                 break;
 512         case CHAN_WIDTH_20_NOHT:
 513         case CHAN_WIDTH_20:
 514         case CHAN_WIDTH_40:
 515         default:
 516                 chwidth = VHT_CHANWIDTH_USE_HT;
 517                 break;
 518         }
 519
 520         switch (hapd->iface->current_mode->mode) {
 521         case HOSTAPD_MODE_IEEE80211A:
 522                 if (cf1 > 5000)
 523                         seg0_idx = (cf1 - 5000) / 5;
 524                 if (cf2 > 5000)
 525                         seg1_idx = (cf2 - 5000) / 5;
 526                 break;
 527         default:
 528                 ieee80211_freq_to_chan(cf1, &seg0_idx);
 529                 ieee80211_freq_to_chan(cf2, &seg1_idx);
 530                 break;
 531         }
 532
 533         hapd->iconf->channel = channel;
 534         hapd->iconf->ieee80211n = ht;
 535         if (!ht)
 536                 hapd->iconf->ieee80211ac = 0;
 537         hapd->iconf->secondary_channel = offset;
 538         hapd->iconf->vht_oper_chwidth = chwidth;
 539         hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
 540         hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
 541
 542         is_dfs = ieee80211_is_dfs(freq);
 543
 544         if (hapd->csa_in_progress &&
 545             freq == hapd->cs_freq_params.freq) {
 546                 hostapd_cleanup_cs_params(hapd);
 547                 ieee802_11_set_beacon(hapd);
 548
 549                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
 550                         "freq=%d dfs=%d", freq, is_dfs);
 551         } else if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) {
 552                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
 553                         "freq=%d dfs=%d", freq, is_dfs);
 554         }
 555 #endif /* NEED_AP_MLME */
 556 }
 557
 558
 559 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd,
 560                                          const u8 *addr, int reason_code)
 561 {
 562         switch (reason_code) {
 563         case MAX_CLIENT_REACHED:
 564                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_MAX_STA MACSTR,
 565                         MAC2STR(addr));
 566                 break;
 567         case BLOCKED_CLIENT:
 568                 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_BLOCKED_STA MACSTR,
 569                         MAC2STR(addr));
 570                 break;
 571         }
 572 }
 573
 574
 575 #ifdef CONFIG_ACS
 576 void hostapd_acs_channel_selected(struct hostapd_data *hapd,
 577                                   struct acs_selected_channels *acs_res)
 578 {
 579         int ret, i;
 580         int err = 0;
 581
 582         if (hapd->iconf->channel) {
 583                 wpa_printf(MSG_INFO, "ACS: Channel was already set to %d",
 584                            hapd->iconf->channel);
 585                 return;
 586         }
 587
 588         if (!hapd->iface->current_mode) {
 589                 for (i = 0; i < hapd->iface->num_hw_features; i++) {
 590                         struct hostapd_hw_modes *mode =
 591                                 &hapd->iface->hw_features[i];
 592
 593                         if (mode->mode == acs_res->hw_mode) {
 594                                 hapd->iface->current_mode = mode;
 595                                 break;
 596                         }
 597                 }
 598                 if (!hapd->iface->current_mode) {
 599                         hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 600                                        HOSTAPD_LEVEL_WARNING,
 601                                        "driver selected to bad hw_mode");
 602                         err = 1;
 603                         goto out;
 604                 }
 605         }
 606
 607         hapd->iface->freq = hostapd_hw_get_freq(hapd, acs_res->pri_channel);
 608
 609         if (!acs_res->pri_channel) {
 610                 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
 611                                HOSTAPD_LEVEL_WARNING,
 612                                "driver switched to bad channel");
 613                 err = 1;
 614                 goto out;
 615         }
 616
 617         hapd->iconf->channel = acs_res->pri_channel;
 618         hapd->iconf->acs = 1;
 619
 620         if (acs_res->sec_channel == 0)
 621                 hapd->iconf->secondary_channel = 0;
 622         else if (acs_res->sec_channel < acs_res->pri_channel)
 623                 hapd->iconf->secondary_channel = -1;
 624         else if (acs_res->sec_channel > acs_res->pri_channel)
 625                 hapd->iconf->secondary_channel = 1;
 626         else {
 627                 wpa_printf(MSG_ERROR, "Invalid secondary channel!");
 628                 err = 1;
 629                 goto out;
 630         }
 631
 632         if (hapd->iface->conf->ieee80211ac) {
 633                 /* set defaults for backwards compatibility */
 634                 hapd->iconf->vht_oper_centr_freq_seg1_idx = 0;
 635                 hapd->iconf->vht_oper_centr_freq_seg0_idx = 0;
 636                 hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
 637                 if (acs_res->ch_width == 80) {
 638                         hapd->iconf->vht_oper_centr_freq_seg0_idx =
 639                                 acs_res->vht_seg0_center_ch;
 640                         hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
 641                 } else if (acs_res->ch_width == 160) {
 642                         if (acs_res->vht_seg1_center_ch == 0) {
 643                                 hapd->iconf->vht_oper_centr_freq_seg0_idx =
 644                                         acs_res->vht_seg0_center_ch;
 645                                 hapd->iconf->vht_oper_chwidth =
 646                                         VHT_CHANWIDTH_160MHZ;
 647                         } else {
 648                                 hapd->iconf->vht_oper_centr_freq_seg0_idx =
 649                                         acs_res->vht_seg0_center_ch;
 650                                 hapd->iconf->vht_oper_centr_freq_seg1_idx =
 651                                         acs_res->vht_seg1_center_ch;
 652                                 hapd->iconf->vht_oper_chwidth =
 653                                         VHT_CHANWIDTH_80P80MHZ;
 654                         }
 655                 }
 656         }
 657
 658 out:
 659         ret = hostapd_acs_completed(hapd->iface, err);
 660         if (ret) {
 661                 wpa_printf(MSG_ERROR,
 662                            "ACS: Possibly channel configuration is invalid");
 663         }
 664 }
 665 #endif /* CONFIG_ACS */
 666
 667
 668 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
 669                          const u8 *bssid, const u8 *ie, size_t ie_len,
 670                          int ssi_signal)
 671 {
 672         size_t i;
 673         int ret = 0;
 674
 675         if (sa == NULL || ie == NULL)
 676                 return -1;
 677
 678         random_add_randomness(sa, ETH_ALEN);
 679         for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
 680                 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
 681                                             sa, da, bssid, ie, ie_len,
 682                                             ssi_signal) > 0) {
 683                         ret = 1;
 684                         break;
 685                 }
 686         }
 687         return ret;
 688 }
 689
 690
 691 #ifdef HOSTAPD
 692
 693 #ifdef CONFIG_IEEE80211R
 694 static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst,
 695                                           const u8 *bssid,
 696                                           u16 auth_transaction, u16 status,
 697                                           const u8 *ies, size_t ies_len)
 698 {
 699         struct hostapd_data *hapd = ctx;
 700         struct sta_info *sta;
 701
 702         sta = ap_get_sta(hapd, dst);
 703         if (sta == NULL)
 704                 return;
 705
 706         hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
 707                        HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
 708         sta->flags |= WLAN_STA_AUTH;
 709
 710         hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len);
 711 }
 712 #endif /* CONFIG_IEEE80211R */
 713
 714
 715 static void hostapd_notif_auth(struct hostapd_data *hapd,
 716                                struct auth_info *rx_auth)
 717 {
 718         struct sta_info *sta;
 719         u16 status = WLAN_STATUS_SUCCESS;
 720         u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
 721         size_t resp_ies_len = 0;
 722
 723         sta = ap_get_sta(hapd, rx_auth->peer);
 724         if (!sta) {
 725                 sta = ap_sta_add(hapd, rx_auth->peer);
 726                 if (sta == NULL) {
 727                         status = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
 728                         goto fail;
 729                 }
 730         }
 731         sta->flags &= ~WLAN_STA_PREAUTH;
 732         ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
 733 #ifdef CONFIG_IEEE80211R
 734         if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) {
 735                 sta->auth_alg = WLAN_AUTH_FT;
 736                 if (sta->wpa_sm == NULL)
 737                         sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
 738                                                         sta->addr, NULL);
 739                 if (sta->wpa_sm == NULL) {
 740                         wpa_printf(MSG_DEBUG,
 741                                    "FT: Failed to initialize WPA state machine");
 742                         status = WLAN_STATUS_UNSPECIFIED_FAILURE;
 743                         goto fail;
 744                 }
 745                 wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid,
 746                                     rx_auth->auth_transaction, rx_auth->ies,
 747                                     rx_auth->ies_len,
 748                                     hostapd_notify_auth_ft_finish, hapd);
 749                 return;
 750         }
 751 #endif /* CONFIG_IEEE80211R */
 752 fail:
 753         hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1,
 754                          status, resp_ies, resp_ies_len);
 755 }
 756
 757
 758 static void hostapd_action_rx(struct hostapd_data *hapd,
 759                               struct rx_mgmt *drv_mgmt)
 760 {
 761         struct ieee80211_mgmt *mgmt;
 762         struct sta_info *sta;
 763         size_t plen __maybe_unused;
 764         u16 fc;
 765
 766         if (drv_mgmt->frame_len < 24 + 1)
 767                 return;
 768
 769         plen = drv_mgmt->frame_len - 24 - 1;
 770
 771         mgmt = (struct ieee80211_mgmt *) drv_mgmt->frame;
 772         fc = le_to_host16(mgmt->frame_control);
 773         if (WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION)
 774                 return; /* handled by the driver */
 775
 776         wpa_printf(MSG_DEBUG, "RX_ACTION cat %d action plen %d",
 777                    mgmt->u.action.category, (int) plen);
 778
 779         sta = ap_get_sta(hapd, mgmt->sa);
 780         if (sta == NULL) {
 781                 wpa_printf(MSG_DEBUG, "%s: station not found", __func__);
 782                 return;
 783         }
 784 #ifdef CONFIG_IEEE80211R
 785         if (mgmt->u.action.category == WLAN_ACTION_FT) {
 786                 const u8 *payload = drv_mgmt->frame + 24 + 1;
 787
 788                 wpa_ft_action_rx(sta->wpa_sm, payload, plen);
 789         }
 790 #endif /* CONFIG_IEEE80211R */
 791 #ifdef CONFIG_IEEE80211W
 792         if (mgmt->u.action.category == WLAN_ACTION_SA_QUERY && plen >= 4) {
 793                 ieee802_11_sa_query_action(
 794                         hapd, mgmt->sa,
 795                         mgmt->u.action.u.sa_query_resp.action,
 796                         mgmt->u.action.u.sa_query_resp.trans_id);
 797         }
 798 #endif /* CONFIG_IEEE80211W */
 799 #ifdef CONFIG_WNM
 800         if (mgmt->u.action.category == WLAN_ACTION_WNM) {
 801                 ieee802_11_rx_wnm_action_ap(hapd, mgmt, drv_mgmt->frame_len);
 802         }
 803 #endif /* CONFIG_WNM */
 804 #ifdef CONFIG_FST
 805         if (mgmt->u.action.category == WLAN_ACTION_FST && hapd->iface->fst) {
 806                 fst_rx_action(hapd->iface->fst, mgmt, drv_mgmt->frame_len);
 807                 return;
 808         }
 809 #endif /* CONFIG_FST */
 810
 811 }
 812
 813
 814 #ifdef NEED_AP_MLME
 815
 816 #define HAPD_BROADCAST ((struct hostapd_data *) -1)
 817
 818 static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
 819                                             const u8 *bssid)
 820 {
 821         size_t i;
 822
 823         if (bssid == NULL)
 824                 return NULL;
 825         if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
 826             bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
 827                 return HAPD_BROADCAST;
 828
 829         for (i = 0; i < iface->num_bss; i++) {
 830                 if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
 831                         return iface->bss[i];
 832         }
 833
 834         return NULL;
 835 }
 836
 837
 838 static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
 839                                         const u8 *bssid, const u8 *addr,
 840                                         int wds)
 841 {
 842         hapd = get_hapd_bssid(hapd->iface, bssid);
 843         if (hapd == NULL || hapd == HAPD_BROADCAST)
 844                 return;
 845
 846         ieee802_11_rx_from_unknown(hapd, addr, wds);
 847 }
 848
 849
 850 static int hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
 851 {
 852         struct hostapd_iface *iface = hapd->iface;
 853         const struct ieee80211_hdr *hdr;
 854         const u8 *bssid;
 855         struct hostapd_frame_info fi;
 856         int ret;
 857
 858 #ifdef CONFIG_TESTING_OPTIONS
 859         if (hapd->ext_mgmt_frame_handling) {
 860                 size_t hex_len = 2 * rx_mgmt->frame_len + 1;
 861                 char *hex = os_malloc(hex_len);
 862
 863                 if (hex) {
 864                         wpa_snprintf_hex(hex, hex_len, rx_mgmt->frame,
 865                                          rx_mgmt->frame_len);
 866                         wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-RX %s", hex);
 867                         os_free(hex);
 868                 }
 869                 return 1;
 870         }
 871 #endif /* CONFIG_TESTING_OPTIONS */
 872
 873         hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
 874         bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
 875         if (bssid == NULL)
 876                 return 0;
 877
 878         hapd = get_hapd_bssid(iface, bssid);
 879         if (hapd == NULL) {
 880                 u16 fc = le_to_host16(hdr->frame_control);
 881
 882                 /*
 883                  * Drop frames to unknown BSSIDs except for Beacon frames which
 884                  * could be used to update neighbor information.
 885                  */
 886                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
 887                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
 888                         hapd = iface->bss[0];
 889                 else
 890                         return 0;
 891         }
 892
 893         os_memset(&fi, 0, sizeof(fi));
 894         fi.datarate = rx_mgmt->datarate;
 895         fi.ssi_signal = rx_mgmt->ssi_signal;
 896
 897         if (hapd == HAPD_BROADCAST) {
 898                 size_t i;
 899
 900                 ret = 0;
 901                 for (i = 0; i < iface->num_bss; i++) {
 902                         /* if bss is set, driver will call this function for
 903                          * each bss individually. */
 904                         if (rx_mgmt->drv_priv &&
 905                             (iface->bss[i]->drv_priv != rx_mgmt->drv_priv))
 906                                 continue;
 907
 908                         if (ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
 909                                             rx_mgmt->frame_len, &fi) > 0)
 910                                 ret = 1;
 911                 }
 912         } else
 913                 ret = ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len,
 914                                       &fi);
 915
 916         random_add_randomness(&fi, sizeof(fi));
 917
 918         return ret;
 919 }
 920
 921
 922 static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
 923                                size_t len, u16 stype, int ok)
 924 {
 925         struct ieee80211_hdr *hdr;
 926         struct hostapd_data *orig_hapd = hapd;
 927
 928         hdr = (struct ieee80211_hdr *) buf;
 929         hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
 930         if (!hapd)
 931                 return;
 932         if (hapd == HAPD_BROADCAST) {
 933                 if (stype != WLAN_FC_STYPE_ACTION || len <= 25 ||
 934                     buf[24] != WLAN_ACTION_PUBLIC)
 935                         return;
 936                 hapd = get_hapd_bssid(orig_hapd->iface, hdr->addr2);
 937                 if (!hapd || hapd == HAPD_BROADCAST)
 938                         return;
 939                 /*
 940                  * Allow processing of TX status for a Public Action frame that
 941                  * used wildcard BBSID.
 942                  */
 943         }
 944         ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
 945 }
 946
 947 #endif /* NEED_AP_MLME */
 948
 949
 950 static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
 951 {
 952         struct sta_info *sta = ap_get_sta(hapd, addr);
 953
 954         if (sta)
 955                 return 0;
 956
 957         wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
 958                    " - adding a new STA", MAC2STR(addr));
 959         sta = ap_sta_add(hapd, addr);
 960         if (sta) {
 961                 hostapd_new_assoc_sta(hapd, sta, 0);
 962         } else {
 963                 wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
 964                            MAC2STR(addr));
 965                 return -1;
 966         }
 967
 968         return 0;
 969 }
 970
 971
 972 static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
 973                                    const u8 *data, size_t data_len)
 974 {
 975         struct hostapd_iface *iface = hapd->iface;
 976         struct sta_info *sta;
 977         size_t j;
 978
 979         for (j = 0; j < iface->num_bss; j++) {
 980                 sta = ap_get_sta(iface->bss[j], src);
 981                 if (sta && sta->flags & WLAN_STA_ASSOC) {
 982                         hapd = iface->bss[j];
 983                         break;
 984                 }
 985         }
 986
 987         ieee802_1x_receive(hapd, src, data, data_len);
 988 }
 989
 990 #endif /* HOSTAPD */
 991
 992
 993 static struct hostapd_channel_data * hostapd_get_mode_channel(
 994         struct hostapd_iface *iface, unsigned int freq)
 995 {
 996         int i;
 997         struct hostapd_channel_data *chan;
 998
 999         for (i = 0; i < iface->current_mode->num_channels; i++) {
1000                 chan = &iface->current_mode->channels[i];
1001                 if ((unsigned int) chan->freq == freq)
1002                         return chan;
1003         }
1004
1005         return NULL;
1006 }
1007
1008
1009 static void hostapd_update_nf(struct hostapd_iface *iface,
1010                               struct hostapd_channel_data *chan,
1011                               struct freq_survey *survey)
1012 {
1013         if (!iface->chans_surveyed) {
1014                 chan->min_nf = survey->nf;
1015                 iface->lowest_nf = survey->nf;
1016         } else {
1017                 if (dl_list_empty(&chan->survey_list))
1018                         chan->min_nf = survey->nf;
1019                 else if (survey->nf < chan->min_nf)
1020                         chan->min_nf = survey->nf;
1021                 if (survey->nf < iface->lowest_nf)
1022                         iface->lowest_nf = survey->nf;
1023         }
1024 }
1025
1026
1027 static void hostapd_single_channel_get_survey(struct hostapd_iface *iface,
1028                                               struct survey_results *survey_res)
1029 {
1030         struct hostapd_channel_data *chan;
1031         struct freq_survey *survey;
1032         u64 divisor, dividend;
1033
1034         survey = dl_list_first(&survey_res->survey_list, struct freq_survey,
1035                                list);
1036         if (!survey || !survey->freq)
1037                 return;
1038
1039         chan = hostapd_get_mode_channel(iface, survey->freq);
1040         if (!chan || chan->flag & HOSTAPD_CHAN_DISABLED)
1041                 return;
1042
1043         wpa_printf(MSG_DEBUG,
1044                    "Single Channel Survey: (freq=%d channel_time=%ld channel_time_busy=%ld)",
1045                    survey->freq,
1046                    (unsigned long int) survey->channel_time,
1047                    (unsigned long int) survey->channel_time_busy);
1048
1049         if (survey->channel_time > iface->last_channel_time &&
1050             survey->channel_time > survey->channel_time_busy) {
1051                 dividend = survey->channel_time_busy -
1052                         iface->last_channel_time_busy;
1053                 divisor = survey->channel_time - iface->last_channel_time;
1054
1055                 iface->channel_utilization = dividend * 255 / divisor;
1056                 wpa_printf(MSG_DEBUG, "Channel Utilization: %d",
1057                            iface->channel_utilization);
1058         }
1059         iface->last_channel_time = survey->channel_time;
1060         iface->last_channel_time_busy = survey->channel_time_busy;
1061 }
1062
1063
1064 void hostapd_event_get_survey(struct hostapd_iface *iface,
1065                               struct survey_results *survey_results)
1066 {
1067         struct freq_survey *survey, *tmp;
1068         struct hostapd_channel_data *chan;
1069
1070         if (dl_list_empty(&survey_results->survey_list)) {
1071                 wpa_printf(MSG_DEBUG, "No survey data received");
1072                 return;
1073         }
1074
1075         if (survey_results->freq_filter) {
1076                 hostapd_single_channel_get_survey(iface, survey_results);
1077                 return;
1078         }
1079
1080         dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
1081                               struct freq_survey, list) {
1082                 chan = hostapd_get_mode_channel(iface, survey->freq);
1083                 if (!chan)
1084                         continue;
1085                 if (chan->flag & HOSTAPD_CHAN_DISABLED)
1086                         continue;
1087
1088                 dl_list_del(&survey->list);
1089                 dl_list_add_tail(&chan->survey_list, &survey->list);
1090
1091                 hostapd_update_nf(iface, chan, survey);
1092
1093                 iface->chans_surveyed++;
1094         }
1095 }
1096
1097
1098 #ifdef HOSTAPD
1099 #ifdef NEED_AP_MLME
1100
1101 static void hostapd_event_iface_unavailable(struct hostapd_data *hapd)
1102 {
1103         wpa_printf(MSG_DEBUG, "Interface %s is unavailable -- stopped",
1104                    hapd->conf->iface);
1105
1106         if (hapd->csa_in_progress) {
1107                 wpa_printf(MSG_INFO, "CSA failed (%s was stopped)",
1108                            hapd->conf->iface);
1109                 hostapd_switch_channel_fallback(hapd->iface,
1110                                                 &hapd->cs_freq_params);
1111         }
1112 }
1113
1114
1115 static void hostapd_event_dfs_radar_detected(struct hostapd_data *hapd,
1116                                              struct dfs_event *radar)
1117 {
1118         wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1119         hostapd_dfs_radar_detected(hapd->iface, radar->freq, radar->ht_enabled,
1120                                    radar->chan_offset, radar->chan_width,
1121                                    radar->cf1, radar->cf2);
1122 }
1123
1124
1125 static void hostapd_event_dfs_cac_finished(struct hostapd_data *hapd,
1126                                            struct dfs_event *radar)
1127 {
1128         wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1129         hostapd_dfs_complete_cac(hapd->iface, 1, radar->freq, radar->ht_enabled,
1130                                  radar->chan_offset, radar->chan_width,
1131                                  radar->cf1, radar->cf2);
1132 }
1133
1134
1135 static void hostapd_event_dfs_cac_aborted(struct hostapd_data *hapd,
1136                                           struct dfs_event *radar)
1137 {
1138         wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1139         hostapd_dfs_complete_cac(hapd->iface, 0, radar->freq, radar->ht_enabled,
1140                                  radar->chan_offset, radar->chan_width,
1141                                  radar->cf1, radar->cf2);
1142 }
1143
1144
1145 static void hostapd_event_dfs_nop_finished(struct hostapd_data *hapd,
1146                                            struct dfs_event *radar)
1147 {
1148         wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1149         hostapd_dfs_nop_finished(hapd->iface, radar->freq, radar->ht_enabled,
1150                                  radar->chan_offset, radar->chan_width,
1151                                  radar->cf1, radar->cf2);
1152 }
1153
1154
1155 static void hostapd_event_dfs_cac_started(struct hostapd_data *hapd,
1156                                           struct dfs_event *radar)
1157 {
1158         wpa_printf(MSG_DEBUG, "DFS offload CAC started on %d MHz", radar->freq);
1159         hostapd_dfs_start_cac(hapd->iface, radar->freq, radar->ht_enabled,
1160                               radar->chan_offset, radar->chan_width,
1161                               radar->cf1, radar->cf2);
1162 }
1163
1164 #endif /* NEED_AP_MLME */
1165
1166
1167 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1168                           union wpa_event_data *data)
1169 {
1170         struct hostapd_data *hapd = ctx;
1171 #ifndef CONFIG_NO_STDOUT_DEBUG
1172         int level = MSG_DEBUG;
1173
1174         if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
1175             data->rx_mgmt.frame_len >= 24) {
1176                 const struct ieee80211_hdr *hdr;
1177                 u16 fc;
1178
1179                 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
1180                 fc = le_to_host16(hdr->frame_control);
1181                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1182                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
1183                         level = MSG_EXCESSIVE;
1184                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1185                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_REQ)
1186                         level = MSG_EXCESSIVE;
1187         }
1188
1189         wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
1190                 event_to_string(event), event);
1191 #endif /* CONFIG_NO_STDOUT_DEBUG */
1192
1193         switch (event) {
1194         case EVENT_MICHAEL_MIC_FAILURE:
1195                 michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
1196                 break;
1197         case EVENT_SCAN_RESULTS:
1198                 if (hapd->iface->scan_cb)
1199                         hapd->iface->scan_cb(hapd->iface);
1200                 break;
1201         case EVENT_WPS_BUTTON_PUSHED:
1202                 hostapd_wps_button_pushed(hapd, NULL);
1203                 break;
1204 #ifdef NEED_AP_MLME
1205         case EVENT_TX_STATUS:
1206                 switch (data->tx_status.type) {
1207                 case WLAN_FC_TYPE_MGMT:
1208                         hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
1209                                            data->tx_status.data_len,
1210                                            data->tx_status.stype,
1211                                            data->tx_status.ack);
1212                         break;
1213                 case WLAN_FC_TYPE_DATA:
1214                         hostapd_tx_status(hapd, data->tx_status.dst,
1215                                           data->tx_status.data,
1216                                           data->tx_status.data_len,
1217                                           data->tx_status.ack);
1218                         break;
1219                 }
1220                 break;
1221         case EVENT_EAPOL_TX_STATUS:
1222                 hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
1223                                         data->eapol_tx_status.data,
1224                                         data->eapol_tx_status.data_len,
1225                                         data->eapol_tx_status.ack);
1226                 break;
1227         case EVENT_DRIVER_CLIENT_POLL_OK:
1228                 hostapd_client_poll_ok(hapd, data->client_poll.addr);
1229                 break;
1230         case EVENT_RX_FROM_UNKNOWN:
1231                 hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
1232                                             data->rx_from_unknown.addr,
1233                                             data->rx_from_unknown.wds);
1234                 break;
1235 #endif /* NEED_AP_MLME */
1236         case EVENT_RX_MGMT:
1237                 if (!data->rx_mgmt.frame)
1238                         break;
1239 #ifdef NEED_AP_MLME
1240                 if (hostapd_mgmt_rx(hapd, &data->rx_mgmt) > 0)
1241                         break;
1242 #endif /* NEED_AP_MLME */
1243                 hostapd_action_rx(hapd, &data->rx_mgmt);
1244                 break;
1245         case EVENT_RX_PROBE_REQ:
1246                 if (data->rx_probe_req.sa == NULL ||
1247                     data->rx_probe_req.ie == NULL)
1248                         break;
1249                 hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
1250                                      data->rx_probe_req.da,
1251                                      data->rx_probe_req.bssid,
1252                                      data->rx_probe_req.ie,
1253                                      data->rx_probe_req.ie_len,
1254                                      data->rx_probe_req.ssi_signal);
1255                 break;
1256         case EVENT_NEW_STA:
1257                 hostapd_event_new_sta(hapd, data->new_sta.addr);
1258                 break;
1259         case EVENT_EAPOL_RX:
1260                 hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
1261                                        data->eapol_rx.data,
1262                                        data->eapol_rx.data_len);
1263                 break;
1264         case EVENT_ASSOC:
1265                 if (!data)
1266                         return;
1267                 hostapd_notif_assoc(hapd, data->assoc_info.addr,
1268                                     data->assoc_info.req_ies,
1269                                     data->assoc_info.req_ies_len,
1270                                     data->assoc_info.reassoc);
1271                 break;
1272         case EVENT_DISASSOC:
1273                 if (data)
1274                         hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
1275                 break;
1276         case EVENT_DEAUTH:
1277                 if (data)
1278                         hostapd_notif_disassoc(hapd, data->deauth_info.addr);
1279                 break;
1280         case EVENT_STATION_LOW_ACK:
1281                 if (!data)
1282                         break;
1283                 hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
1284                 break;
1285         case EVENT_AUTH:
1286                 hostapd_notif_auth(hapd, &data->auth);
1287                 break;
1288         case EVENT_CH_SWITCH:
1289                 if (!data)
1290                         break;
1291                 hostapd_event_ch_switch(hapd, data->ch_switch.freq,
1292                                         data->ch_switch.ht_enabled,
1293                                         data->ch_switch.ch_offset,
1294                                         data->ch_switch.ch_width,
1295                                         data->ch_switch.cf1,
1296                                         data->ch_switch.cf2);
1297                 break;
1298         case EVENT_CONNECT_FAILED_REASON:
1299                 if (!data)
1300                         break;
1301                 hostapd_event_connect_failed_reason(
1302                         hapd, data->connect_failed_reason.addr,
1303                         data->connect_failed_reason.code);
1304                 break;
1305         case EVENT_SURVEY:
1306                 hostapd_event_get_survey(hapd->iface, &data->survey_results);
1307                 break;
1308 #ifdef NEED_AP_MLME
1309         case EVENT_INTERFACE_UNAVAILABLE:
1310                 hostapd_event_iface_unavailable(hapd);
1311                 break;
1312         case EVENT_DFS_RADAR_DETECTED:
1313                 if (!data)
1314                         break;
1315                 hostapd_event_dfs_radar_detected(hapd, &data->dfs_event);
1316                 break;
1317         case EVENT_DFS_CAC_FINISHED:
1318                 if (!data)
1319                         break;
1320                 hostapd_event_dfs_cac_finished(hapd, &data->dfs_event);
1321                 break;
1322         case EVENT_DFS_CAC_ABORTED:
1323                 if (!data)
1324                         break;
1325                 hostapd_event_dfs_cac_aborted(hapd, &data->dfs_event);
1326                 break;
1327         case EVENT_DFS_NOP_FINISHED:
1328                 if (!data)
1329                         break;
1330                 hostapd_event_dfs_nop_finished(hapd, &data->dfs_event);
1331                 break;
1332         case EVENT_CHANNEL_LIST_CHANGED:
1333                 /* channel list changed (regulatory?), update channel list */
1334                 /* TODO: check this. hostapd_get_hw_features() initializes
1335                  * too much stuff. */
1336                 /* hostapd_get_hw_features(hapd->iface); */
1337                 hostapd_channel_list_updated(
1338                         hapd->iface, data->channel_list_changed.initiator);
1339                 break;
1340         case EVENT_DFS_CAC_STARTED:
1341                 if (!data)
1342                         break;
1343                 hostapd_event_dfs_cac_started(hapd, &data->dfs_event);
1344                 break;
1345 #endif /* NEED_AP_MLME */
1346         case EVENT_INTERFACE_ENABLED:
1347                 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_ENABLED);
1348                 if (hapd->disabled && hapd->started) {
1349                         hapd->disabled = 0;
1350                         /*
1351                          * Try to re-enable interface if the driver stopped it
1352                          * when the interface got disabled.
1353                          */
1354                         wpa_auth_reconfig_group_keys(hapd->wpa_auth);
1355                         hapd->reenable_beacon = 1;
1356                         ieee802_11_set_beacon(hapd);
1357                 }
1358                 break;
1359         case EVENT_INTERFACE_DISABLED:
1360                 hostapd_free_stas(hapd);
1361                 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_DISABLED);
1362                 hapd->disabled = 1;
1363                 break;
1364 #ifdef CONFIG_ACS
1365         case EVENT_ACS_CHANNEL_SELECTED:
1366                 hostapd_acs_channel_selected(hapd,
1367                                              &data->acs_selected_channels);
1368                 break;
1369 #endif /* CONFIG_ACS */
1370         default:
1371                 wpa_printf(MSG_DEBUG, "Unknown event %d", event);
1372                 break;
1373         }
1374 }
1375
1376
1377 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
1378                                  union wpa_event_data *data)
1379 {
1380         struct hapd_interfaces *interfaces = ctx;
1381         struct hostapd_data *hapd;
1382
1383         if (event != EVENT_INTERFACE_STATUS)
1384                 return;
1385
1386         hapd = hostapd_get_iface(interfaces, data->interface_status.ifname);
1387         if (hapd && hapd->driver && hapd->driver->get_ifindex &&
1388             hapd->drv_priv) {
1389                 unsigned int ifindex;
1390
1391                 ifindex = hapd->driver->get_ifindex(hapd->drv_priv);
1392                 if (ifindex != data->interface_status.ifindex) {
1393                         wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1394                                 "interface status ifindex %d mismatch (%d)",
1395                                 ifindex, data->interface_status.ifindex);
1396                         return;
1397                 }
1398         }
1399         if (hapd)
1400                 wpa_supplicant_event(hapd, event, data);
1401 }
1402
1403 #endif /* HOSTAPD */