wpa_supplicant/wpa_supplicant.c

   1 /*
   2  * WPA Supplicant
   3  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  *
  14  * This file implements functions for registering and unregistering
  15  * %wpa_supplicant interfaces. In addition, this file contains number of
  16  * functions for managing network connections.
  17  */
  18
  19 #include "includes.h"
  20
  21 #include "common.h"
  22 #include "eapol_supp/eapol_supp_sm.h"
  23 #include "eap_peer/eap.h"
  24 #include "wpa.h"
  25 #include "eloop.h"
  26 #include "drivers/driver.h"
  27 #include "config.h"
  28 #include "l2_packet/l2_packet.h"
  29 #include "wpa_supplicant_i.h"
  30 #include "ctrl_iface.h"
  31 #include "ctrl_iface_dbus.h"
  32 #include "pcsc_funcs.h"
  33 #include "version.h"
  34 #include "preauth.h"
  35 #include "pmksa_cache.h"
  36 #include "wpa_ctrl.h"
  37 #include "mlme.h"
  38 #include "ieee802_11_defs.h"
  39 #include "blacklist.h"
  40 #include "wpas_glue.h"
  41 #include "wps/wps.h"
  42 #include "wps_supplicant.h"
  43
  44 const char *wpa_supplicant_version =
  45 "wpa_supplicant v" VERSION_STR "\n"
  46 "Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi> and contributors";
  47
  48 const char *wpa_supplicant_license =
  49 "This program is free software. You can distribute it and/or modify it\n"
  50 "under the terms of the GNU General Public License version 2.\n"
  51 "\n"
  52 "Alternatively, this software may be distributed under the terms of the\n"
  53 "BSD license. See README and COPYING for more details.\n"
  54 #ifdef EAP_TLS_OPENSSL
  55 "\nThis product includes software developed by the OpenSSL Project\n"
  56 "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
  57 #endif /* EAP_TLS_OPENSSL */
  58 ;
  59
  60 #ifndef CONFIG_NO_STDOUT_DEBUG
  61 /* Long text divided into parts in order to fit in C89 strings size limits. */
  62 const char *wpa_supplicant_full_license1 =
  63 "This program is free software; you can redistribute it and/or modify\n"
  64 "it under the terms of the GNU General Public License version 2 as\n"
  65 "published by the Free Software Foundation.\n"
  66 "\n"
  67 "This program is distributed in the hope that it will be useful,\n"
  68 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  69 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  70 "GNU General Public License for more details.\n"
  71 "\n";
  72 const char *wpa_supplicant_full_license2 =
  73 "You should have received a copy of the GNU General Public License\n"
  74 "along with this program; if not, write to the Free Software\n"
  75 "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA\n"
  76 "\n"
  77 "Alternatively, this software may be distributed under the terms of the\n"
  78 "BSD license.\n"
  79 "\n"
  80 "Redistribution and use in source and binary forms, with or without\n"
  81 "modification, are permitted provided that the following conditions are\n"
  82 "met:\n"
  83 "\n";
  84 const char *wpa_supplicant_full_license3 =
  85 "1. Redistributions of source code must retain the above copyright\n"
  86 "   notice, this list of conditions and the following disclaimer.\n"
  87 "\n"
  88 "2. Redistributions in binary form must reproduce the above copyright\n"
  89 "   notice, this list of conditions and the following disclaimer in the\n"
  90 "   documentation and/or other materials provided with the distribution.\n"
  91 "\n";
  92 const char *wpa_supplicant_full_license4 =
  93 "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
  94 "   names of its contributors may be used to endorse or promote products\n"
  95 "   derived from this software without specific prior written permission.\n"
  96 "\n"
  97 "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
  98 "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
  99 "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
 100 "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
 101 const char *wpa_supplicant_full_license5 =
 102 "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
 103 "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
 104 "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
 105 "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
 106 "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
 107 "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
 108 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
 109 "\n";
 110 #endif /* CONFIG_NO_STDOUT_DEBUG */
 111
 112 extern struct wpa_driver_ops *wpa_supplicant_drivers[];
 113
 114 extern int wpa_debug_level;
 115 extern int wpa_debug_show_keys;
 116 extern int wpa_debug_timestamp;
 117
 118 /* Configure default/group WEP keys for static WEP */
 119 static int wpa_set_wep_keys(struct wpa_supplicant *wpa_s,
 120                             struct wpa_ssid *ssid)
 121 {
 122         int i, set = 0;
 123
 124         for (i = 0; i < NUM_WEP_KEYS; i++) {
 125                 if (ssid->wep_key_len[i] == 0)
 126                         continue;
 127
 128                 set = 1;
 129                 wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
 130                                 (u8 *) "\xff\xff\xff\xff\xff\xff",
 131                                 i, i == ssid->wep_tx_keyidx, (u8 *) "", 0,
 132                                 ssid->wep_key[i], ssid->wep_key_len[i]);
 133         }
 134
 135         return set;
 136 }
 137
 138
 139 static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s,
 140                                            struct wpa_ssid *ssid)
 141 {
 142         u8 key[32];
 143         size_t keylen;
 144         wpa_alg alg;
 145         u8 seq[6] = { 0 };
 146
 147         /* IBSS/WPA-None uses only one key (Group) for both receiving and
 148          * sending unicast and multicast packets. */
 149
 150         if (ssid->mode != IEEE80211_MODE_IBSS) {
 151                 wpa_printf(MSG_INFO, "WPA: Invalid mode %d (not IBSS/ad-hoc) "
 152                            "for WPA-None", ssid->mode);
 153                 return -1;
 154         }
 155
 156         if (!ssid->psk_set) {
 157                 wpa_printf(MSG_INFO, "WPA: No PSK configured for WPA-None");
 158                 return -1;
 159         }
 160
 161         switch (wpa_s->group_cipher) {
 162         case WPA_CIPHER_CCMP:
 163                 os_memcpy(key, ssid->psk, 16);
 164                 keylen = 16;
 165                 alg = WPA_ALG_CCMP;
 166                 break;
 167         case WPA_CIPHER_TKIP:
 168                 /* WPA-None uses the same Michael MIC key for both TX and RX */
 169                 os_memcpy(key, ssid->psk, 16 + 8);
 170                 os_memcpy(key + 16 + 8, ssid->psk + 16, 8);
 171                 keylen = 32;
 172                 alg = WPA_ALG_TKIP;
 173                 break;
 174         default:
 175                 wpa_printf(MSG_INFO, "WPA: Invalid group cipher %d for "
 176                            "WPA-None", wpa_s->group_cipher);
 177                 return -1;
 178         }
 179
 180         /* TODO: should actually remember the previously used seq#, both for TX
 181          * and RX from each STA.. */
 182
 183         return wpa_drv_set_key(wpa_s, alg, (u8 *) "\xff\xff\xff\xff\xff\xff",
 184                                0, 1, seq, 6, key, keylen);
 185 }
 186
 187
 188 static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx)
 189 {
 190         struct wpa_supplicant *wpa_s = eloop_ctx;
 191         const u8 *bssid = wpa_s->bssid;
 192         if (is_zero_ether_addr(bssid))
 193                 bssid = wpa_s->pending_bssid;
 194         wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.",
 195                 MAC2STR(bssid));
 196         wpa_blacklist_add(wpa_s, bssid);
 197         wpa_sm_notify_disassoc(wpa_s->wpa);
 198         wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 199         wpa_s->reassociate = 1;
 200         wpa_supplicant_req_scan(wpa_s, 0, 0);
 201 }
 202
 203
 204 /**
 205  * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
 206  * @wpa_s: Pointer to wpa_supplicant data
 207  * @sec: Number of seconds after which to time out authentication
 208  * @usec: Number of microseconds after which to time out authentication
 209  *
 210  * This function is used to schedule a timeout for the current authentication
 211  * attempt.
 212  */
 213 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
 214                                      int sec, int usec)
 215 {
 216         if (wpa_s->conf && wpa_s->conf->ap_scan == 0 &&
 217             wpa_s->driver && IS_WIRED(wpa_s->driver))
 218                 return;
 219
 220         wpa_msg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec "
 221                 "%d usec", sec, usec);
 222         eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
 223         eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL);
 224 }
 225
 226
 227 /**
 228  * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
 229  * @wpa_s: Pointer to wpa_supplicant data
 230  *
 231  * This function is used to cancel authentication timeout scheduled with
 232  * wpa_supplicant_req_auth_timeout() and it is called when authentication has
 233  * been completed.
 234  */
 235 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s)
 236 {
 237         wpa_msg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout");
 238         eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
 239         wpa_blacklist_del(wpa_s, wpa_s->bssid);
 240 }
 241
 242
 243 /**
 244  * wpa_supplicant_initiate_eapol - Configure EAPOL state machine
 245  * @wpa_s: Pointer to wpa_supplicant data
 246  *
 247  * This function is used to configure EAPOL state machine based on the selected
 248  * authentication mode.
 249  */
 250 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s)
 251 {
 252 #ifdef IEEE8021X_EAPOL
 253         struct eapol_config eapol_conf;
 254         struct wpa_ssid *ssid = wpa_s->current_ssid;
 255
 256         eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 257         eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
 258
 259         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 260             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 261                 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
 262         else
 263                 eapol_sm_notify_portControl(wpa_s->eapol, Auto);
 264
 265         os_memset(&eapol_conf, 0, sizeof(eapol_conf));
 266         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 267                 eapol_conf.accept_802_1x_keys = 1;
 268                 eapol_conf.required_keys = 0;
 269                 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) {
 270                         eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST;
 271                 }
 272                 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) {
 273                         eapol_conf.required_keys |=
 274                                 EAPOL_REQUIRE_KEY_BROADCAST;
 275                 }
 276
 277                 if (wpa_s->conf && wpa_s->driver && IS_WIRED(wpa_s->driver)) {
 278                         eapol_conf.required_keys = 0;
 279                 }
 280         }
 281         if (wpa_s->conf)
 282                 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
 283         eapol_conf.workaround = ssid->eap_workaround;
 284         eapol_conf.eap_disabled =
 285                 !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
 286                 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 287                 wpa_s->key_mgmt != WPA_KEY_MGMT_WPS;
 288         eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
 289 #endif /* IEEE8021X_EAPOL */
 290 }
 291
 292
 293 /**
 294  * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
 295  * @wpa_s: Pointer to wpa_supplicant data
 296  * @ssid: Configuration data for the network
 297  *
 298  * This function is used to configure WPA state machine and related parameters
 299  * to a mode where WPA is not enabled. This is called as part of the
 300  * authentication configuration when the selected network does not use WPA.
 301  */
 302 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
 303                                        struct wpa_ssid *ssid)
 304 {
 305         int i;
 306
 307         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 308                 wpa_s->key_mgmt = WPA_KEY_MGMT_WPS;
 309         else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)
 310                 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 311         else
 312                 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
 313         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
 314         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
 315         wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
 316         wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 317         wpa_s->group_cipher = WPA_CIPHER_NONE;
 318         wpa_s->mgmt_group_cipher = 0;
 319
 320         for (i = 0; i < NUM_WEP_KEYS; i++) {
 321                 if (ssid->wep_key_len[i] > 5) {
 322                         wpa_s->pairwise_cipher = WPA_CIPHER_WEP104;
 323                         wpa_s->group_cipher = WPA_CIPHER_WEP104;
 324                         break;
 325                 } else if (ssid->wep_key_len[i] > 0) {
 326                         wpa_s->pairwise_cipher = WPA_CIPHER_WEP40;
 327                         wpa_s->group_cipher = WPA_CIPHER_WEP40;
 328                         break;
 329                 }
 330         }
 331
 332         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0);
 333         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
 334         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
 335                          wpa_s->pairwise_cipher);
 336         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
 337 #ifdef CONFIG_IEEE80211W
 338         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
 339                          wpa_s->mgmt_group_cipher);
 340 #endif /* CONFIG_IEEE80211W */
 341
 342         pmksa_cache_clear_current(wpa_s->wpa);
 343 }
 344
 345
 346 static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
 347 {
 348         scard_deinit(wpa_s->scard);
 349         wpa_s->scard = NULL;
 350         wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
 351         eapol_sm_register_scard_ctx(wpa_s->eapol, NULL);
 352         l2_packet_deinit(wpa_s->l2);
 353         wpa_s->l2 = NULL;
 354         if (wpa_s->l2_br) {
 355                 l2_packet_deinit(wpa_s->l2_br);
 356                 wpa_s->l2_br = NULL;
 357         }
 358
 359         if (wpa_s->ctrl_iface) {
 360                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 361                 wpa_s->ctrl_iface = NULL;
 362         }
 363         if (wpa_s->conf != NULL) {
 364                 wpa_config_free(wpa_s->conf);
 365                 wpa_s->conf = NULL;
 366         }
 367
 368         os_free(wpa_s->confname);
 369         wpa_s->confname = NULL;
 370
 371         wpa_sm_set_eapol(wpa_s->wpa, NULL);
 372         eapol_sm_deinit(wpa_s->eapol);
 373         wpa_s->eapol = NULL;
 374
 375         rsn_preauth_deinit(wpa_s->wpa);
 376
 377         pmksa_candidate_free(wpa_s->wpa);
 378         wpa_sm_deinit(wpa_s->wpa);
 379         wpa_s->wpa = NULL;
 380         wpa_blacklist_clear(wpa_s);
 381
 382         wpa_scan_results_free(wpa_s->scan_res);
 383         wpa_s->scan_res = NULL;
 384
 385         wpa_supplicant_cancel_scan(wpa_s);
 386         wpa_supplicant_cancel_auth_timeout(wpa_s);
 387
 388         ieee80211_sta_deinit(wpa_s);
 389
 390         wpas_wps_deinit(wpa_s);
 391 }
 392
 393
 394 /**
 395  * wpa_clear_keys - Clear keys configured for the driver
 396  * @wpa_s: Pointer to wpa_supplicant data
 397  * @addr: Previously used BSSID or %NULL if not available
 398  *
 399  * This function clears the encryption keys that has been previously configured
 400  * for the driver.
 401  */
 402 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
 403 {
 404         u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff";
 405
 406         if (wpa_s->keys_cleared) {
 407                 /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have
 408                  * timing issues with keys being cleared just before new keys
 409                  * are set or just after association or something similar. This
 410                  * shows up in group key handshake failing often because of the
 411                  * client not receiving the first encrypted packets correctly.
 412                  * Skipping some of the extra key clearing steps seems to help
 413                  * in completing group key handshake more reliably. */
 414                 wpa_printf(MSG_DEBUG, "No keys have been configured - "
 415                            "skip key clearing");
 416                 return;
 417         }
 418
 419         /* MLME-DELETEKEYS.request */
 420         wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0);
 421         wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0);
 422         wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0);
 423         wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0);
 424         if (addr) {
 425                 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
 426                                 0);
 427                 /* MLME-SETPROTECTION.request(None) */
 428                 wpa_drv_mlme_setprotection(
 429                         wpa_s, addr,
 430                         MLME_SETPROTECTION_PROTECT_TYPE_NONE,
 431                         MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
 432         }
 433         wpa_s->keys_cleared = 1;
 434 }
 435
 436
 437 /**
 438  * wpa_supplicant_state_txt - Get the connection state name as a text string
 439  * @state: State (wpa_state; WPA_*)
 440  * Returns: The state name as a printable text string
 441  */
 442 const char * wpa_supplicant_state_txt(int state)
 443 {
 444         switch (state) {
 445         case WPA_DISCONNECTED:
 446                 return "DISCONNECTED";
 447         case WPA_INACTIVE:
 448                 return "INACTIVE";
 449         case WPA_SCANNING:
 450                 return "SCANNING";
 451         case WPA_ASSOCIATING:
 452                 return "ASSOCIATING";
 453         case WPA_ASSOCIATED:
 454                 return "ASSOCIATED";
 455         case WPA_4WAY_HANDSHAKE:
 456                 return "4WAY_HANDSHAKE";
 457         case WPA_GROUP_HANDSHAKE:
 458                 return "GROUP_HANDSHAKE";
 459         case WPA_COMPLETED:
 460                 return "COMPLETED";
 461         default:
 462                 return "UNKNOWN";
 463         }
 464 }
 465
 466
 467 /**
 468  * wpa_supplicant_set_state - Set current connection state
 469  * @wpa_s: Pointer to wpa_supplicant data
 470  * @state: The new connection state
 471  *
 472  * This function is called whenever the connection state changes, e.g.,
 473  * association is completed for WPA/WPA2 4-Way Handshake is started.
 474  */
 475 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state)
 476 {
 477         wpa_printf(MSG_DEBUG, "State: %s -> %s",
 478                    wpa_supplicant_state_txt(wpa_s->wpa_state),
 479                    wpa_supplicant_state_txt(state));
 480
 481         wpa_supplicant_dbus_notify_state_change(wpa_s, state,
 482                                                 wpa_s->wpa_state);
 483
 484         if (state == WPA_COMPLETED && wpa_s->new_connection) {
 485 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
 486                 struct wpa_ssid *ssid = wpa_s->current_ssid;
 487                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to "
 488                         MACSTR " completed %s [id=%d id_str=%s]",
 489                         MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ?
 490                         "(reauth)" : "(auth)",
 491                         ssid ? ssid->id : -1,
 492                         ssid && ssid->id_str ? ssid->id_str : "");
 493 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
 494                 wpa_s->new_connection = 0;
 495                 wpa_s->reassociated_connection = 1;
 496                 wpa_drv_set_operstate(wpa_s, 1);
 497         } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
 498                    state == WPA_ASSOCIATED) {
 499                 wpa_s->new_connection = 1;
 500                 wpa_drv_set_operstate(wpa_s, 0);
 501         }
 502         wpa_s->wpa_state = state;
 503 }
 504
 505
 506 static void wpa_supplicant_terminate(int sig, void *eloop_ctx,
 507                                      void *signal_ctx)
 508 {
 509         struct wpa_global *global = eloop_ctx;
 510         struct wpa_supplicant *wpa_s;
 511         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 512                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d "
 513                         "received", sig);
 514         }
 515         eloop_terminate();
 516 }
 517
 518
 519 static void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s)
 520 {
 521         wpa_s->pairwise_cipher = 0;
 522         wpa_s->group_cipher = 0;
 523         wpa_s->mgmt_group_cipher = 0;
 524         wpa_s->key_mgmt = 0;
 525         wpa_s->wpa_state = WPA_DISCONNECTED;
 526 }
 527
 528
 529 /**
 530  * wpa_supplicant_reload_configuration - Reload configuration data
 531  * @wpa_s: Pointer to wpa_supplicant data
 532  * Returns: 0 on success or -1 if configuration parsing failed
 533  *
 534  * This function can be used to request that the configuration data is reloaded
 535  * (e.g., after configuration file change). This function is reloading
 536  * configuration only for one interface, so this may need to be called multiple
 537  * times if %wpa_supplicant is controlling multiple interfaces and all
 538  * interfaces need reconfiguration.
 539  */
 540 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
 541 {
 542         struct wpa_config *conf;
 543         int reconf_ctrl;
 544         if (wpa_s->confname == NULL)
 545                 return -1;
 546         conf = wpa_config_read(wpa_s->confname);
 547         if (conf == NULL) {
 548                 wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration "
 549                         "file '%s' - exiting", wpa_s->confname);
 550                 return -1;
 551         }
 552
 553         reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface
 554                 || (conf->ctrl_interface && wpa_s->conf->ctrl_interface &&
 555                     os_strcmp(conf->ctrl_interface,
 556                               wpa_s->conf->ctrl_interface) != 0);
 557
 558         if (reconf_ctrl && wpa_s->ctrl_iface) {
 559                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 560                 wpa_s->ctrl_iface = NULL;
 561         }
 562
 563         eapol_sm_invalidate_cached_session(wpa_s->eapol);
 564         wpa_s->current_ssid = NULL;
 565         /*
 566          * TODO: should notify EAPOL SM about changes in opensc_engine_path,
 567          * pkcs11_engine_path, pkcs11_module_path.
 568          */
 569         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
 570                 /*
 571                  * Clear forced success to clear EAP state for next
 572                  * authentication.
 573                  */
 574                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 575         }
 576         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 577         wpa_sm_set_config(wpa_s->wpa, NULL);
 578         wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
 579         rsn_preauth_deinit(wpa_s->wpa);
 580         wpa_config_free(wpa_s->conf);
 581         wpa_s->conf = conf;
 582         if (reconf_ctrl)
 583                 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
 584
 585         wpa_supplicant_clear_status(wpa_s);
 586         wpa_s->reassociate = 1;
 587         wpa_supplicant_req_scan(wpa_s, 0, 0);
 588         wpa_msg(wpa_s, MSG_DEBUG, "Reconfiguration completed");
 589         return 0;
 590 }
 591
 592
 593 static void wpa_supplicant_reconfig(int sig, void *eloop_ctx,
 594                                     void *signal_ctx)
 595 {
 596         struct wpa_global *global = eloop_ctx;
 597         struct wpa_supplicant *wpa_s;
 598         wpa_printf(MSG_DEBUG, "Signal %d received - reconfiguring", sig);
 599         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 600                 if (wpa_supplicant_reload_configuration(wpa_s) < 0) {
 601                         eloop_terminate();
 602                 }
 603         }
 604 }
 605
 606
 607 static wpa_cipher cipher_suite2driver(int cipher)
 608 {
 609         switch (cipher) {
 610         case WPA_CIPHER_NONE:
 611                 return CIPHER_NONE;
 612         case WPA_CIPHER_WEP40:
 613                 return CIPHER_WEP40;
 614         case WPA_CIPHER_WEP104:
 615                 return CIPHER_WEP104;
 616         case WPA_CIPHER_CCMP:
 617                 return CIPHER_CCMP;
 618         case WPA_CIPHER_TKIP:
 619         default:
 620                 return CIPHER_TKIP;
 621         }
 622 }
 623
 624
 625 static wpa_key_mgmt key_mgmt2driver(int key_mgmt)
 626 {
 627         switch (key_mgmt) {
 628         case WPA_KEY_MGMT_NONE:
 629                 return KEY_MGMT_NONE;
 630         case WPA_KEY_MGMT_IEEE8021X_NO_WPA:
 631                 return KEY_MGMT_802_1X_NO_WPA;
 632         case WPA_KEY_MGMT_IEEE8021X:
 633                 return KEY_MGMT_802_1X;
 634         case WPA_KEY_MGMT_WPA_NONE:
 635                 return KEY_MGMT_WPA_NONE;
 636         case WPA_KEY_MGMT_FT_IEEE8021X:
 637                 return KEY_MGMT_FT_802_1X;
 638         case WPA_KEY_MGMT_FT_PSK:
 639                 return KEY_MGMT_FT_PSK;
 640         case WPA_KEY_MGMT_IEEE8021X_SHA256:
 641                 return KEY_MGMT_802_1X_SHA256;
 642         case WPA_KEY_MGMT_PSK_SHA256:
 643                 return KEY_MGMT_PSK_SHA256;
 644         case WPA_KEY_MGMT_WPS:
 645                 return KEY_MGMT_WPS;
 646         case WPA_KEY_MGMT_PSK:
 647         default:
 648                 return KEY_MGMT_PSK;
 649         }
 650 }
 651
 652
 653 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s,
 654                                          struct wpa_ssid *ssid,
 655                                          struct wpa_ie_data *ie)
 656 {
 657         int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie);
 658         if (ret) {
 659                 if (ret == -2) {
 660                         wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE "
 661                                 "from association info");
 662                 }
 663                 return -1;
 664         }
 665
 666         wpa_printf(MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set cipher "
 667                    "suites");
 668         if (!(ie->group_cipher & ssid->group_cipher)) {
 669                 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group "
 670                         "cipher 0x%x (mask 0x%x) - reject",
 671                         ie->group_cipher, ssid->group_cipher);
 672                 return -1;
 673         }
 674         if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) {
 675                 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise "
 676                         "cipher 0x%x (mask 0x%x) - reject",
 677                         ie->pairwise_cipher, ssid->pairwise_cipher);
 678                 return -1;
 679         }
 680         if (!(ie->key_mgmt & ssid->key_mgmt)) {
 681                 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key "
 682                         "management 0x%x (mask 0x%x) - reject",
 683                         ie->key_mgmt, ssid->key_mgmt);
 684                 return -1;
 685         }
 686
 687 #ifdef CONFIG_IEEE80211W
 688         if (!(ie->capabilities & WPA_CAPABILITY_MFPC) &&
 689             ssid->ieee80211w == IEEE80211W_REQUIRED) {
 690                 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP "
 691                         "that does not support management frame protection - "
 692                         "reject");
 693                 return -1;
 694         }
 695 #endif /* CONFIG_IEEE80211W */
 696
 697         return 0;
 698 }
 699
 700
 701 /**
 702  * wpa_supplicant_set_suites - Set authentication and encryption parameters
 703  * @wpa_s: Pointer to wpa_supplicant data
 704  * @bss: Scan results for the selected BSS, or %NULL if not available
 705  * @ssid: Configuration data for the selected network
 706  * @wpa_ie: Buffer for the WPA/RSN IE
 707  * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
 708  * used buffer length in case the functions returns success.
 709  * Returns: 0 on success or -1 on failure
 710  *
 711  * This function is used to configure authentication and encryption parameters
 712  * based on the network configuration and scan result for the selected BSS (if
 713  * available).
 714  */
 715 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
 716                               struct wpa_scan_res *bss,
 717                               struct wpa_ssid *ssid,
 718                               u8 *wpa_ie, size_t *wpa_ie_len)
 719 {
 720         struct wpa_ie_data ie;
 721         int sel, proto;
 722         const u8 *bss_wpa, *bss_rsn;
 723
 724         if (bss) {
 725                 bss_wpa = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 726                 bss_rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 727         } else
 728                 bss_wpa = bss_rsn = NULL;
 729
 730         if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) &&
 731             wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 &&
 732             (ie.group_cipher & ssid->group_cipher) &&
 733             (ie.pairwise_cipher & ssid->pairwise_cipher) &&
 734             (ie.key_mgmt & ssid->key_mgmt)) {
 735                 wpa_msg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
 736                 proto = WPA_PROTO_RSN;
 737         } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
 738                    wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 &&
 739                    (ie.group_cipher & ssid->group_cipher) &&
 740                    (ie.pairwise_cipher & ssid->pairwise_cipher) &&
 741                    (ie.key_mgmt & ssid->key_mgmt)) {
 742                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0");
 743                 proto = WPA_PROTO_WPA;
 744         } else if (bss) {
 745                 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
 746                 return -1;
 747         } else {
 748                 if (ssid->proto & WPA_PROTO_RSN)
 749                         proto = WPA_PROTO_RSN;
 750                 else
 751                         proto = WPA_PROTO_WPA;
 752                 if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) {
 753                         os_memset(&ie, 0, sizeof(ie));
 754                         ie.group_cipher = ssid->group_cipher;
 755                         ie.pairwise_cipher = ssid->pairwise_cipher;
 756                         ie.key_mgmt = ssid->key_mgmt;
 757 #ifdef CONFIG_IEEE80211W
 758                         ie.mgmt_group_cipher =
 759                                 ssid->ieee80211w != NO_IEEE80211W ?
 760                                 WPA_CIPHER_AES_128_CMAC : 0;
 761 #endif /* CONFIG_IEEE80211W */
 762                         wpa_printf(MSG_DEBUG, "WPA: Set cipher suites based "
 763                                    "on configuration");
 764                 } else
 765                         proto = ie.proto;
 766         }
 767
 768         wpa_printf(MSG_DEBUG, "WPA: Selected cipher suites: group %d "
 769                    "pairwise %d key_mgmt %d proto %d",
 770                    ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto);
 771 #ifdef CONFIG_IEEE80211W
 772         if (ssid->ieee80211w) {
 773                 wpa_printf(MSG_DEBUG, "WPA: Selected mgmt group cipher %d",
 774                            ie.mgmt_group_cipher);
 775         }
 776 #endif /* CONFIG_IEEE80211W */
 777
 778         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto);
 779         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
 780                          !!(ssid->proto & WPA_PROTO_RSN));
 781
 782         if (bss || !wpa_s->ap_ies_from_associnfo) {
 783                 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
 784                                          bss_wpa ? 2 + bss_wpa[1] : 0) ||
 785                     wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
 786                                          bss_rsn ? 2 + bss_rsn[1] : 0))
 787                         return -1;
 788         }
 789
 790         sel = ie.group_cipher & ssid->group_cipher;
 791         if (sel & WPA_CIPHER_CCMP) {
 792                 wpa_s->group_cipher = WPA_CIPHER_CCMP;
 793                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP");
 794         } else if (sel & WPA_CIPHER_TKIP) {
 795                 wpa_s->group_cipher = WPA_CIPHER_TKIP;
 796                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP");
 797         } else if (sel & WPA_CIPHER_WEP104) {
 798                 wpa_s->group_cipher = WPA_CIPHER_WEP104;
 799                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104");
 800         } else if (sel & WPA_CIPHER_WEP40) {
 801                 wpa_s->group_cipher = WPA_CIPHER_WEP40;
 802                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40");
 803         } else {
 804                 wpa_printf(MSG_WARNING, "WPA: Failed to select group cipher.");
 805                 return -1;
 806         }
 807
 808         sel = ie.pairwise_cipher & ssid->pairwise_cipher;
 809         if (sel & WPA_CIPHER_CCMP) {
 810                 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
 811                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP");
 812         } else if (sel & WPA_CIPHER_TKIP) {
 813                 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
 814                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP");
 815         } else if (sel & WPA_CIPHER_NONE) {
 816                 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
 817                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE");
 818         } else {
 819                 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
 820                            "cipher.");
 821                 return -1;
 822         }
 823
 824         sel = ie.key_mgmt & ssid->key_mgmt;
 825         if (0) {
 826 #ifdef CONFIG_IEEE80211R
 827         } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) {
 828                 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X;
 829                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X");
 830         } else if (sel & WPA_KEY_MGMT_FT_PSK) {
 831                 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK;
 832                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK");
 833 #endif /* CONFIG_IEEE80211R */
 834 #ifdef CONFIG_IEEE80211W
 835         } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 836                 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256;
 837                 wpa_msg(wpa_s, MSG_DEBUG,
 838                         "WPA: using KEY_MGMT 802.1X with SHA256");
 839         } else if (sel & WPA_KEY_MGMT_PSK_SHA256) {
 840                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256;
 841                 wpa_msg(wpa_s, MSG_DEBUG,
 842                         "WPA: using KEY_MGMT PSK with SHA256");
 843 #endif /* CONFIG_IEEE80211W */
 844         } else if (sel & WPA_KEY_MGMT_IEEE8021X) {
 845                 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 846                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X");
 847         } else if (sel & WPA_KEY_MGMT_PSK) {
 848                 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
 849                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK");
 850         } else if (sel & WPA_KEY_MGMT_WPA_NONE) {
 851                 wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE;
 852                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE");
 853         } else {
 854                 wpa_printf(MSG_WARNING, "WPA: Failed to select authenticated "
 855                            "key management type.");
 856                 return -1;
 857         }
 858
 859         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
 860         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
 861                          wpa_s->pairwise_cipher);
 862         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
 863
 864 #ifdef CONFIG_IEEE80211W
 865         sel = ie.mgmt_group_cipher;
 866         if (ssid->ieee80211w == NO_IEEE80211W ||
 867             !(ie.capabilities & WPA_CAPABILITY_MFPC))
 868                 sel = 0;
 869         if (sel & WPA_CIPHER_AES_128_CMAC) {
 870                 wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
 871                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
 872                         "AES-128-CMAC");
 873         } else {
 874                 wpa_s->mgmt_group_cipher = 0;
 875                 wpa_msg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
 876         }
 877         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
 878                          wpa_s->mgmt_group_cipher);
 879 #endif /* CONFIG_IEEE80211W */
 880
 881         if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
 882                 wpa_printf(MSG_WARNING, "WPA: Failed to generate WPA IE.");
 883                 return -1;
 884         }
 885
 886         if (ssid->key_mgmt &
 887             (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256))
 888                 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN);
 889         else
 890                 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
 891
 892         return 0;
 893 }
 894
 895
 896 /**
 897  * wpa_supplicant_associate - Request association
 898  * @wpa_s: Pointer to wpa_supplicant data
 899  * @bss: Scan results for the selected BSS, or %NULL if not available
 900  * @ssid: Configuration data for the selected network
 901  *
 902  * This function is used to request %wpa_supplicant to associate with a BSS.
 903  */
 904 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
 905                               struct wpa_scan_res *bss, struct wpa_ssid *ssid)
 906 {
 907         u8 wpa_ie[80];
 908         size_t wpa_ie_len;
 909         int use_crypt, ret, i;
 910         int algs = AUTH_ALG_OPEN_SYSTEM;
 911         wpa_cipher cipher_pairwise, cipher_group;
 912         struct wpa_driver_associate_params params;
 913         int wep_keys_set = 0;
 914         struct wpa_driver_capa capa;
 915         int assoc_failed = 0;
 916
 917         wpa_s->reassociate = 0;
 918         if (bss) {
 919 #ifdef CONFIG_IEEE80211R
 920                 const u8 *md = NULL;
 921 #endif /* CONFIG_IEEE80211R */
 922                 const u8 *ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 923                 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
 924                         " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
 925                         ie ? wpa_ssid_txt(ie + 2, ie[1]) : "", bss->freq);
 926                 os_memset(wpa_s->bssid, 0, ETH_ALEN);
 927                 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
 928 #ifdef CONFIG_IEEE80211R
 929                 ie = wpa_scan_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
 930                 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
 931                         md = ie + 2;
 932                 wpa_sm_set_ft_params(wpa_s->wpa, md, NULL, 0, NULL);
 933                 if (md) {
 934                         /* Prepare for the next transition */
 935                         wpa_ft_prepare_auth_request(wpa_s->wpa);
 936                 }
 937 #endif /* CONFIG_IEEE80211R */
 938         } else {
 939                 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
 940                         wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 941                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 942         }
 943         wpa_supplicant_cancel_scan(wpa_s);
 944
 945         /* Starting new association, so clear the possibly used WPA IE from the
 946          * previous association. */
 947         wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
 948
 949         if (wpa_drv_set_mode(wpa_s, ssid->mode)) {
 950                 wpa_printf(MSG_WARNING, "Failed to set operating mode");
 951                 assoc_failed = 1;
 952         }
 953
 954 #ifdef IEEE8021X_EAPOL
 955         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 956                 if (ssid->leap) {
 957                         if (ssid->non_leap == 0)
 958                                 algs = AUTH_ALG_LEAP;
 959                         else
 960                                 algs |= AUTH_ALG_LEAP;
 961                 }
 962         }
 963 #endif /* IEEE8021X_EAPOL */
 964         wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
 965         if (ssid->auth_alg) {
 966                 algs = 0;
 967                 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN)
 968                         algs |= AUTH_ALG_OPEN_SYSTEM;
 969                 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED)
 970                         algs |= AUTH_ALG_SHARED_KEY;
 971                 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP)
 972                         algs |= AUTH_ALG_LEAP;
 973                 wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x",
 974                            algs);
 975         }
 976         wpa_drv_set_auth_alg(wpa_s, algs);
 977
 978         if (bss && (wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
 979                     wpa_scan_get_ie(bss, WLAN_EID_RSN)) &&
 980             (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
 981                                WPA_KEY_MGMT_FT_IEEE8021X |
 982                                WPA_KEY_MGMT_FT_PSK |
 983                                WPA_KEY_MGMT_IEEE8021X_SHA256 |
 984                                WPA_KEY_MGMT_PSK_SHA256))) {
 985                 int try_opportunistic;
 986                 try_opportunistic = ssid->proactive_key_caching &&
 987                         (ssid->proto & WPA_PROTO_RSN);
 988                 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
 989                                             wpa_s->current_ssid,
 990                                             try_opportunistic) == 0)
 991                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 992                 wpa_ie_len = sizeof(wpa_ie);
 993                 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
 994                                               wpa_ie, &wpa_ie_len)) {
 995                         wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key "
 996                                    "management and encryption suites");
 997                         return;
 998                 }
 999         } else if (ssid->key_mgmt &
1000                    (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
1001                     WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK |
1002                     WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 |
1003                     WPA_KEY_MGMT_IEEE8021X_SHA256)) {
1004                 wpa_ie_len = sizeof(wpa_ie);
1005                 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
1006                                               wpa_ie, &wpa_ie_len)) {
1007                         wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key "
1008                                    "management and encryption suites (no scan "
1009                                    "results)");
1010                         return;
1011                 }
1012 #ifdef CONFIG_WPS
1013         } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
1014                 struct wpabuf *wps_ie;
1015                 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
1016                 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
1017                         wpa_ie_len = wpabuf_len(wps_ie);
1018                         os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
1019                 }
1020                 wpabuf_free(wps_ie);
1021                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
1022 #endif /* CONFIG_WPS */
1023         } else {
1024                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
1025                 wpa_ie_len = 0;
1026         }
1027
1028         wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
1029         use_crypt = 1;
1030         cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher);
1031         cipher_group = cipher_suite2driver(wpa_s->group_cipher);
1032         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1033             wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
1034                 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
1035                         use_crypt = 0;
1036                 if (wpa_set_wep_keys(wpa_s, ssid)) {
1037                         use_crypt = 1;
1038                         wep_keys_set = 1;
1039                 }
1040         }
1041         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
1042                 use_crypt = 0;
1043
1044 #ifdef IEEE8021X_EAPOL
1045         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
1046                 if ((ssid->eapol_flags &
1047                      (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
1048                       EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
1049                     !wep_keys_set) {
1050                         use_crypt = 0;
1051                 } else {
1052                         /* Assume that dynamic WEP-104 keys will be used and
1053                          * set cipher suites in order for drivers to expect
1054                          * encryption. */
1055                         cipher_pairwise = cipher_group = CIPHER_WEP104;
1056                 }
1057         }
1058 #endif /* IEEE8021X_EAPOL */
1059
1060         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1061                 /* Set the key before (and later after) association */
1062                 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
1063         }
1064
1065         wpa_drv_set_drop_unencrypted(wpa_s, use_crypt);
1066         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
1067         os_memset(&params, 0, sizeof(params));
1068         if (bss) {
1069                 const u8 *ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
1070                 params.bssid = bss->bssid;
1071                 params.ssid = ie ? ie + 2 : (u8 *) "";
1072                 params.ssid_len = ie ? ie[1] : 0;
1073                 params.freq = bss->freq;
1074         } else {
1075                 params.ssid = ssid->ssid;
1076                 params.ssid_len = ssid->ssid_len;
1077         }
1078         if (ssid->mode == 1 && ssid->frequency > 0 && params.freq == 0)
1079                 params.freq = ssid->frequency; /* Initial channel for IBSS */
1080         params.wpa_ie = wpa_ie;
1081         params.wpa_ie_len = wpa_ie_len;
1082         params.pairwise_suite = cipher_pairwise;
1083         params.group_suite = cipher_group;
1084         params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
1085         params.auth_alg = algs;
1086         params.mode = ssid->mode;
1087         for (i = 0; i < NUM_WEP_KEYS; i++) {
1088                 if (ssid->wep_key_len[i])
1089                         params.wep_key[i] = ssid->wep_key[i];
1090                 params.wep_key_len[i] = ssid->wep_key_len[i];
1091         }
1092         params.wep_tx_keyidx = ssid->wep_tx_keyidx;
1093
1094         if (wpa_s->driver_4way_handshake &&
1095             (params.key_mgmt_suite == KEY_MGMT_PSK ||
1096              params.key_mgmt_suite == KEY_MGMT_FT_PSK)) {
1097                 params.passphrase = ssid->passphrase;
1098                 if (ssid->psk_set)
1099                         params.psk = ssid->psk;
1100         }
1101
1102 #ifdef CONFIG_IEEE80211W
1103         switch (ssid->ieee80211w) {
1104         case NO_IEEE80211W:
1105                 params.mgmt_frame_protection = NO_MGMT_FRAME_PROTECTION;
1106                 break;
1107         case IEEE80211W_OPTIONAL:
1108                 params.mgmt_frame_protection = MGMT_FRAME_PROTECTION_OPTIONAL;
1109                 break;
1110         case IEEE80211W_REQUIRED:
1111                 params.mgmt_frame_protection = MGMT_FRAME_PROTECTION_REQUIRED;
1112                 break;
1113         }
1114 #endif /* CONFIG_IEEE80211W */
1115
1116         if (wpa_s->use_client_mlme)
1117                 ret = ieee80211_sta_associate(wpa_s, &params);
1118         else
1119                 ret = wpa_drv_associate(wpa_s, &params);
1120         if (ret < 0) {
1121                 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
1122                         "failed");
1123                 /* try to continue anyway; new association will be tried again
1124                  * after timeout */
1125                 assoc_failed = 1;
1126         }
1127
1128         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1129                 /* Set the key after the association just in case association
1130                  * cleared the previously configured key. */
1131                 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
1132                 /* No need to timeout authentication since there is no key
1133                  * management. */
1134                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1135                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1136         } else {
1137                 /* Timeout for IEEE 802.11 authentication and association */
1138                 int timeout = 60;
1139
1140                 if (assoc_failed) {
1141                         /* give IBSS a bit more time */
1142                         timeout = ssid->mode ? 10 : 5;
1143                 } else if (wpa_s->conf->ap_scan == 1) {
1144                         /* give IBSS a bit more time */
1145                         timeout = ssid->mode ? 20 : 10;
1146                 }
1147                 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
1148         }
1149
1150         if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1151             capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) {
1152                 /* Set static WEP keys again */
1153                 wpa_set_wep_keys(wpa_s, ssid);
1154         }
1155
1156         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
1157                 /*
1158                  * Do not allow EAP session resumption between different
1159                  * network configurations.
1160                  */
1161                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
1162         }
1163         wpa_s->current_ssid = ssid;
1164         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
1165         wpa_supplicant_initiate_eapol(wpa_s);
1166 }
1167
1168
1169 /**
1170  * wpa_supplicant_disassociate - Disassociate the current connection
1171  * @wpa_s: Pointer to wpa_supplicant data
1172  * @reason_code: IEEE 802.11 reason code for the disassociate frame
1173  *
1174  * This function is used to request %wpa_supplicant to disassociate with the
1175  * current AP.
1176  */
1177 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
1178                                  int reason_code)
1179 {
1180         u8 *addr = NULL;
1181         if (!is_zero_ether_addr(wpa_s->bssid)) {
1182                 if (wpa_s->use_client_mlme)
1183                         ieee80211_sta_disassociate(wpa_s, reason_code);
1184                 else
1185                         wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code);
1186                 addr = wpa_s->bssid;
1187         }
1188         wpa_clear_keys(wpa_s, addr);
1189         wpa_supplicant_mark_disassoc(wpa_s);
1190         wpa_s->current_ssid = NULL;
1191         wpa_sm_set_config(wpa_s->wpa, NULL);
1192         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
1193 }
1194
1195
1196 /**
1197  * wpa_supplicant_deauthenticate - Deauthenticate the current connection
1198  * @wpa_s: Pointer to wpa_supplicant data
1199  * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
1200  *
1201  * This function is used to request %wpa_supplicant to disassociate with the
1202  * current AP.
1203  */
1204 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
1205                                    int reason_code)
1206 {
1207         u8 *addr = NULL;
1208         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1209         if (!is_zero_ether_addr(wpa_s->bssid)) {
1210                 if (wpa_s->use_client_mlme)
1211                         ieee80211_sta_deauthenticate(wpa_s, reason_code);
1212                 else
1213                         wpa_drv_deauthenticate(wpa_s, wpa_s->bssid,
1214                                                reason_code);
1215                 addr = wpa_s->bssid;
1216         }
1217         wpa_clear_keys(wpa_s, addr);
1218         wpa_s->current_ssid = NULL;
1219         wpa_sm_set_config(wpa_s->wpa, NULL);
1220         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
1221         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1222         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1223 }
1224
1225
1226 static int wpa_supplicant_get_scan_results_old(struct wpa_supplicant *wpa_s)
1227 {
1228 #define SCAN_AP_LIMIT 128
1229         struct wpa_scan_result *results;
1230         int num, i;
1231         struct wpa_scan_results *res;
1232
1233         results = os_malloc(SCAN_AP_LIMIT * sizeof(struct wpa_scan_result));
1234         if (results == NULL) {
1235                 wpa_printf(MSG_WARNING, "Failed to allocate memory for scan "
1236                            "results");
1237                 return -1;
1238         }
1239
1240         num = wpa_drv_get_scan_results(wpa_s, results, SCAN_AP_LIMIT);
1241         wpa_printf(MSG_DEBUG, "Scan results: %d", num);
1242         if (num < 0) {
1243                 wpa_printf(MSG_DEBUG, "Failed to get scan results");
1244                 os_free(results);
1245                 return -1;
1246         }
1247         if (num > SCAN_AP_LIMIT) {
1248                 wpa_printf(MSG_INFO, "Not enough room for all APs (%d < %d)",
1249                            num, SCAN_AP_LIMIT);
1250                 num = SCAN_AP_LIMIT;
1251         }
1252
1253         wpa_scan_results_free(wpa_s->scan_res);
1254         wpa_s->scan_res = NULL;
1255
1256         /* Convert old scan result data structure to the new one */
1257         res = os_zalloc(sizeof(*res));
1258         if (res == NULL) {
1259                 os_free(results);
1260                 return -1;
1261         }
1262         res->res = os_zalloc(num * sizeof(struct wpa_scan_res *));
1263         if (res->res == NULL) {
1264                 os_free(results);
1265                 os_free(res);
1266                 return -1;
1267         }
1268
1269         for (i = 0; i < num; i++) {
1270                 struct wpa_scan_result *bss = &results[i];
1271                 struct wpa_scan_res *r;
1272                 size_t ie_len;
1273                 u8 *pos;
1274
1275                 ie_len = 2 + bss->ssid_len + bss->rsn_ie_len + bss->wpa_ie_len;
1276                 if (bss->maxrate)
1277                         ie_len += 3;
1278                 if (bss->mdie_present)
1279                         ie_len += 5;
1280
1281                 r = os_zalloc(sizeof(*r) + ie_len);
1282                 if (r == NULL)
1283                         break;
1284
1285                 os_memcpy(r->bssid, bss->bssid, ETH_ALEN);
1286                 r->freq = bss->freq;
1287                 r->caps = bss->caps;
1288                 r->qual = bss->qual;
1289                 r->noise = bss->noise;
1290                 r->level = bss->level;
1291                 r->tsf = bss->tsf;
1292                 r->ie_len = ie_len;
1293
1294                 pos = (u8 *) (r + 1);
1295
1296                 /* SSID IE */
1297                 *pos++ = WLAN_EID_SSID;
1298                 *pos++ = bss->ssid_len;
1299                 os_memcpy(pos, bss->ssid, bss->ssid_len);
1300                 pos += bss->ssid_len;
1301
1302                 if (bss->maxrate) {
1303                         /* Fake Supported Rate IE to include max rate */
1304                         *pos++ = WLAN_EID_SUPP_RATES;
1305                         *pos++ = 1;
1306                         *pos++ = bss->maxrate;
1307                 }
1308
1309                 if (bss->rsn_ie_len) {
1310                         os_memcpy(pos, bss->rsn_ie, bss->rsn_ie_len);
1311                         pos += bss->rsn_ie_len;
1312                 }
1313
1314                 if (bss->mdie_present) {
1315                         os_memcpy(pos, bss->mdie, 5);
1316                         pos += 5;
1317                 }
1318
1319                 if (bss->wpa_ie_len) {
1320                         os_memcpy(pos, bss->wpa_ie, bss->wpa_ie_len);
1321                         pos += bss->wpa_ie_len;
1322                 }
1323
1324                 res->res[res->num++] = r;
1325         }
1326
1327         os_free(results);
1328         wpa_s->scan_res = res;
1329
1330         return 0;
1331 }
1332
1333
1334 /**
1335  * wpa_supplicant_get_scan_results - Get scan results
1336  * @wpa_s: Pointer to wpa_supplicant data
1337  * Returns: 0 on success, -1 on failure
1338  *
1339  * This function is request the current scan results from the driver and stores
1340  * a local copy of the results in wpa_s->scan_res.
1341  */
1342 int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s)
1343 {
1344         int ret;
1345
1346         if (wpa_s->use_client_mlme) {
1347                 wpa_scan_results_free(wpa_s->scan_res);
1348                 wpa_s->scan_res = ieee80211_sta_get_scan_results(wpa_s);
1349                 if (wpa_s->scan_res == NULL) {
1350                         wpa_printf(MSG_DEBUG, "Failed to get scan results");
1351                         ret = -1;
1352                 } else
1353                         ret = 0;
1354         } else if (wpa_s->driver->get_scan_results2 == NULL)
1355                 ret = wpa_supplicant_get_scan_results_old(wpa_s);
1356         else {
1357                 wpa_scan_results_free(wpa_s->scan_res);
1358                 wpa_s->scan_res = wpa_drv_get_scan_results2(wpa_s);
1359                 if (wpa_s->scan_res == NULL) {
1360                         wpa_printf(MSG_DEBUG, "Failed to get scan results");
1361                         ret = -1;
1362                 } else
1363                         ret = 0;
1364         }
1365
1366         if (wpa_s->scan_res)
1367                 wpa_scan_sort_results(wpa_s->scan_res);
1368
1369         return ret;
1370 }
1371
1372
1373 /**
1374  * wpa_supplicant_get_ssid - Get a pointer to the current network structure
1375  * @wpa_s: Pointer to wpa_supplicant data
1376  * Returns: A pointer to the current network structure or %NULL on failure
1377  */
1378 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
1379 {
1380         struct wpa_ssid *entry;
1381         u8 ssid[MAX_SSID_LEN];
1382         int res;
1383         size_t ssid_len;
1384         u8 bssid[ETH_ALEN];
1385         int wired;
1386
1387         if (wpa_s->use_client_mlme) {
1388                 if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) {
1389                         wpa_printf(MSG_WARNING, "Could not read SSID from "
1390                                    "MLME.");
1391                         return NULL;
1392                 }
1393         } else {
1394                 res = wpa_drv_get_ssid(wpa_s, ssid);
1395                 if (res < 0) {
1396                         wpa_printf(MSG_WARNING, "Could not read SSID from "
1397                                    "driver.");
1398                         return NULL;
1399                 }
1400                 ssid_len = res;
1401         }
1402
1403         if (wpa_s->use_client_mlme)
1404                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
1405         else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1406                 wpa_printf(MSG_WARNING, "Could not read BSSID from driver.");
1407                 return NULL;
1408         }
1409
1410         wired = wpa_s->conf->ap_scan == 0 && wpa_s->driver &&
1411                 IS_WIRED(wpa_s->driver);
1412
1413         entry = wpa_s->conf->ssid;
1414         while (entry) {
1415                 if (!entry->disabled &&
1416                     ((ssid_len == entry->ssid_len &&
1417                       os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
1418                     (!entry->bssid_set ||
1419                      os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
1420                         return entry;
1421                 entry = entry->next;
1422         }
1423
1424         return NULL;
1425 }
1426
1427
1428 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
1429                                      const char *name)
1430 {
1431         int i;
1432
1433         if (wpa_s == NULL)
1434                 return -1;
1435
1436         if (wpa_supplicant_drivers[0] == NULL) {
1437                 wpa_printf(MSG_ERROR, "No driver interfaces build into "
1438                            "wpa_supplicant.");
1439                 return -1;
1440         }
1441
1442         if (name == NULL) {
1443                 /* default to first driver in the list */
1444                 wpa_s->driver = wpa_supplicant_drivers[0];
1445                 return 0;
1446         }
1447
1448         for (i = 0; wpa_supplicant_drivers[i]; i++) {
1449                 if (os_strcmp(name, wpa_supplicant_drivers[i]->name) == 0) {
1450                         wpa_s->driver = wpa_supplicant_drivers[i];
1451                         return 0;
1452                 }
1453         }
1454
1455         wpa_printf(MSG_ERROR, "Unsupported driver '%s'.\n", name);
1456         return -1;
1457 }
1458
1459
1460 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
1461                              const u8 *buf, size_t len)
1462 {
1463         struct wpa_supplicant *wpa_s = ctx;
1464
1465         wpa_printf(MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
1466         wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
1467
1468         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
1469                 wpa_printf(MSG_DEBUG, "Ignored received EAPOL frame since "
1470                            "no key management is configured");
1471                 return;
1472         }
1473
1474         if (wpa_s->eapol_received == 0 &&
1475             (!wpa_s->driver_4way_handshake ||
1476              !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
1477              wpa_s->wpa_state != WPA_COMPLETED)) {
1478                 /* Timeout for completing IEEE 802.1X and WPA authentication */
1479                 wpa_supplicant_req_auth_timeout(
1480                         wpa_s,
1481                         (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
1482                          wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) ?
1483                         70 : 10, 0);
1484         }
1485         wpa_s->eapol_received++;
1486
1487         if (wpa_s->countermeasures) {
1488                 wpa_printf(MSG_INFO, "WPA: Countermeasures - dropped EAPOL "
1489                            "packet");
1490                 return;
1491         }
1492
1493         /* Source address of the incoming EAPOL frame could be compared to the
1494          * current BSSID. However, it is possible that a centralized
1495          * Authenticator could be using another MAC address than the BSSID of
1496          * an AP, so just allow any address to be used for now. The replies are
1497          * still sent to the current BSSID (if available), though. */
1498
1499         os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
1500         if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
1501             eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
1502                 return;
1503         wpa_drv_poll(wpa_s);
1504         if (!wpa_s->driver_4way_handshake)
1505                 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
1506         else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1507                 /*
1508                  * Set portValid = TRUE here since we are going to skip 4-way
1509                  * handshake processing which would normally set portValid. We
1510                  * need this to allow the EAPOL state machines to be completed
1511                  * without going through EAPOL-Key handshake.
1512                  */
1513                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1514         }
1515 }
1516
1517
1518 void wpa_supplicant_sta_free_hw_features(struct wpa_hw_modes *hw_features,
1519                                          size_t num_hw_features)
1520 {
1521         ieee80211_sta_free_hw_features(hw_features, num_hw_features);
1522 }
1523
1524
1525 void wpa_supplicant_sta_rx(void *ctx, const u8 *buf, size_t len,
1526                            struct ieee80211_rx_status *rx_status)
1527 {
1528         struct wpa_supplicant *wpa_s = ctx;
1529         ieee80211_sta_rx(wpa_s, buf, len, rx_status);
1530 }
1531
1532
1533 /**
1534  * wpa_supplicant_driver_init - Initialize driver interface parameters
1535  * @wpa_s: Pointer to wpa_supplicant data
1536  * Returns: 0 on success, -1 on failure
1537  *
1538  * This function is called to initialize driver interface parameters.
1539  * wpa_drv_init() must have been called before this function to initialize the
1540  * driver interface.
1541  */
1542 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
1543 {
1544         static int interface_count = 0;
1545
1546         if (wpa_s->driver->send_eapol) {
1547                 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
1548                 if (addr)
1549                         os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
1550         } else {
1551                 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
1552                                            wpa_drv_get_mac_addr(wpa_s),
1553                                            ETH_P_EAPOL,
1554                                            wpa_supplicant_rx_eapol, wpa_s, 0);
1555                 if (wpa_s->l2 == NULL)
1556                         return -1;
1557         }
1558
1559         if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
1560                 wpa_printf(MSG_ERROR, "Failed to get own L2 address");
1561                 return -1;
1562         }
1563
1564         wpa_printf(MSG_DEBUG, "Own MAC address: " MACSTR,
1565                    MAC2STR(wpa_s->own_addr));
1566
1567         if (wpa_s->bridge_ifname[0]) {
1568                 wpa_printf(MSG_DEBUG, "Receiving packets from bridge interface"
1569                            " '%s'", wpa_s->bridge_ifname);
1570                 wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname,
1571                                               wpa_s->own_addr,
1572                                               ETH_P_EAPOL,
1573                                               wpa_supplicant_rx_eapol, wpa_s,
1574                                               0);
1575                 if (wpa_s->l2_br == NULL) {
1576                         wpa_printf(MSG_ERROR, "Failed to open l2_packet "
1577                                    "connection for the bridge interface '%s'",
1578                                    wpa_s->bridge_ifname);
1579                         return -1;
1580                 }
1581         }
1582
1583         /* Backwards compatibility call to set_wpa() handler. This is called
1584          * only just after init and just before deinit, so these handler can be
1585          * used to implement same functionality. */
1586         if (wpa_drv_set_wpa(wpa_s, 1) < 0) {
1587                 struct wpa_driver_capa capa;
1588                 if (wpa_drv_get_capa(wpa_s, &capa) < 0 ||
1589                     !(capa.flags & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1590                                     WPA_DRIVER_CAPA_KEY_MGMT_WPA2))) {
1591                         wpa_printf(MSG_DEBUG, "Driver does not support WPA.");
1592                         /* Continue to allow non-WPA modes to be used. */
1593                 } else {
1594                         wpa_printf(MSG_ERROR, "Failed to enable WPA in the "
1595                                 "driver.");
1596                         return -1;
1597                 }
1598         }
1599
1600         wpa_clear_keys(wpa_s, NULL);
1601
1602         /* Make sure that TKIP countermeasures are not left enabled (could
1603          * happen if wpa_supplicant is killed during countermeasures. */
1604         wpa_drv_set_countermeasures(wpa_s, 0);
1605
1606         wpa_drv_set_drop_unencrypted(wpa_s, 1);
1607
1608         wpa_printf(MSG_DEBUG, "RSN: flushing PMKID list in the driver");
1609         wpa_drv_flush_pmkid(wpa_s);
1610
1611         wpa_s->prev_scan_ssid = BROADCAST_SSID_SCAN;
1612         wpa_supplicant_req_scan(wpa_s, interface_count, 100000);
1613         interface_count++;
1614
1615         return 0;
1616 }
1617
1618
1619 static int wpa_supplicant_daemon(const char *pid_file)
1620 {
1621         wpa_printf(MSG_DEBUG, "Daemonize..");
1622         return os_daemonize(pid_file);
1623 }
1624
1625
1626 static struct wpa_supplicant * wpa_supplicant_alloc(void)
1627 {
1628         struct wpa_supplicant *wpa_s;
1629
1630         wpa_s = os_zalloc(sizeof(*wpa_s));
1631         if (wpa_s == NULL)
1632                 return NULL;
1633         wpa_s->scan_req = 1;
1634
1635         return wpa_s;
1636 }
1637
1638
1639 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
1640                                      struct wpa_interface *iface)
1641 {
1642         wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
1643                    "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
1644                    iface->confname ? iface->confname : "N/A",
1645                    iface->driver ? iface->driver : "default",
1646                    iface->ctrl_interface ? iface->ctrl_interface : "N/A",
1647                    iface->bridge_ifname ? iface->bridge_ifname : "N/A");
1648
1649         if (wpa_supplicant_set_driver(wpa_s, iface->driver) < 0) {
1650                 return -1;
1651         }
1652
1653         if (iface->confname) {
1654 #ifdef CONFIG_BACKEND_FILE
1655                 wpa_s->confname = os_rel2abs_path(iface->confname);
1656                 if (wpa_s->confname == NULL) {
1657                         wpa_printf(MSG_ERROR, "Failed to get absolute path "
1658                                    "for configuration file '%s'.",
1659                                    iface->confname);
1660                         return -1;
1661                 }
1662                 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
1663                            iface->confname, wpa_s->confname);
1664 #else /* CONFIG_BACKEND_FILE */
1665                 wpa_s->confname = os_strdup(iface->confname);
1666 #endif /* CONFIG_BACKEND_FILE */
1667                 wpa_s->conf = wpa_config_read(wpa_s->confname);
1668                 if (wpa_s->conf == NULL) {
1669                         wpa_printf(MSG_ERROR, "Failed to read or parse "
1670                                    "configuration '%s'.", wpa_s->confname);
1671                         return -1;
1672                 }
1673
1674                 /*
1675                  * Override ctrl_interface and driver_param if set on command
1676                  * line.
1677                  */
1678                 if (iface->ctrl_interface) {
1679                         os_free(wpa_s->conf->ctrl_interface);
1680                         wpa_s->conf->ctrl_interface =
1681                                 os_strdup(iface->ctrl_interface);
1682                 }
1683
1684                 if (iface->driver_param) {
1685                         os_free(wpa_s->conf->driver_param);
1686                         wpa_s->conf->driver_param =
1687                                 os_strdup(iface->driver_param);
1688                 }
1689         } else
1690                 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
1691                                                      iface->driver_param);
1692
1693         if (wpa_s->conf == NULL) {
1694                 wpa_printf(MSG_ERROR, "\nNo configuration found.");
1695                 return -1;
1696         }
1697
1698         if (iface->ifname == NULL) {
1699                 wpa_printf(MSG_ERROR, "\nInterface name is required.");
1700                 return -1;
1701         }
1702         if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
1703                 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
1704                            iface->ifname);
1705                 return -1;
1706         }
1707         os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
1708
1709         if (iface->bridge_ifname) {
1710                 if (os_strlen(iface->bridge_ifname) >=
1711                     sizeof(wpa_s->bridge_ifname)) {
1712                         wpa_printf(MSG_ERROR, "\nToo long bridge interface "
1713                                    "name '%s'.", iface->bridge_ifname);
1714                         return -1;
1715                 }
1716                 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
1717                            sizeof(wpa_s->bridge_ifname));
1718         }
1719
1720         return 0;
1721 }
1722
1723
1724 static int wpa_supplicant_init_iface2(struct wpa_supplicant *wpa_s)
1725 {
1726         const char *ifname;
1727         struct wpa_driver_capa capa;
1728
1729         wpa_printf(MSG_DEBUG, "Initializing interface (2) '%s'",
1730                    wpa_s->ifname);
1731
1732         /* RSNA Supplicant Key Management - INITIALIZE */
1733         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1734         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1735
1736         /* Initialize driver interface and register driver event handler before
1737          * L2 receive handler so that association events are processed before
1738          * EAPOL-Key packets if both become available for the same select()
1739          * call. */
1740         wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
1741         if (wpa_s->drv_priv == NULL) {
1742                 wpa_printf(MSG_ERROR, "Failed to initialize driver interface");
1743                 return -1;
1744         }
1745         if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
1746                 wpa_printf(MSG_ERROR, "Driver interface rejected "
1747                            "driver_param '%s'", wpa_s->conf->driver_param);
1748                 return -1;
1749         }
1750
1751         ifname = wpa_drv_get_ifname(wpa_s);
1752         if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
1753                 wpa_printf(MSG_DEBUG, "Driver interface replaced interface "
1754                            "name with '%s'", ifname);
1755                 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
1756         }
1757
1758         if (wpa_supplicant_init_wpa(wpa_s) < 0)
1759                 return -1;
1760
1761         wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
1762                           wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
1763                           NULL);
1764         wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
1765
1766         if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
1767             wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
1768                              wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
1769                 wpa_printf(MSG_ERROR, "Invalid WPA parameter value for "
1770                            "dot11RSNAConfigPMKLifetime");
1771                 return -1;
1772         }
1773
1774         if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
1775             wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
1776                              wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
1777                 wpa_printf(MSG_ERROR, "Invalid WPA parameter value for "
1778                         "dot11RSNAConfigPMKReauthThreshold");
1779                 return -1;
1780         }
1781
1782         if (wpa_s->conf->dot11RSNAConfigSATimeout &&
1783             wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
1784                              wpa_s->conf->dot11RSNAConfigSATimeout)) {
1785                 wpa_printf(MSG_ERROR, "Invalid WPA parameter value for "
1786                            "dot11RSNAConfigSATimeout");
1787                 return -1;
1788         }
1789
1790         if (wpa_supplicant_driver_init(wpa_s) < 0)
1791                 return -1;
1792
1793         if (wpa_s->conf->alpha2[0] && wpa_s->conf->alpha2[1] &&
1794             wpa_drv_set_country(wpa_s, wpa_s->conf->alpha2)) {
1795                 wpa_printf(MSG_DEBUG, "Failed to set country");
1796                 return -1;
1797         }
1798
1799         wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
1800
1801         if (wpas_wps_init(wpa_s))
1802                 return -1;
1803
1804         if (wpa_supplicant_init_eapol(wpa_s) < 0)
1805                 return -1;
1806         wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
1807
1808         wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
1809         if (wpa_s->ctrl_iface == NULL) {
1810                 wpa_printf(MSG_ERROR,
1811                            "Failed to initialize control interface '%s'.\n"
1812                            "You may have another wpa_supplicant process "
1813                            "already running or the file was\n"
1814                            "left by an unclean termination of wpa_supplicant "
1815                            "in which case you will need\n"
1816                            "to manually remove this file before starting "
1817                            "wpa_supplicant again.\n",
1818                            wpa_s->conf->ctrl_interface);
1819                 return -1;
1820         }
1821
1822         if (wpa_drv_get_capa(wpa_s, &capa) == 0) {
1823                 if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) {
1824                         wpa_s->use_client_mlme = 1;
1825                         if (ieee80211_sta_init(wpa_s))
1826                                 return -1;
1827                 }
1828                 if (capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)
1829                         wpa_s->driver_4way_handshake = 1;
1830         }
1831
1832         return 0;
1833 }
1834
1835
1836 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s)
1837 {
1838         if (wpa_s->drv_priv) {
1839                 wpa_supplicant_deauthenticate(wpa_s,
1840                                               WLAN_REASON_DEAUTH_LEAVING);
1841
1842                 /* Backwards compatibility call to set_wpa() handler. This is
1843                  * called only just after init and just before deinit, so these
1844                  * handler can be used to implement same functionality. */
1845                 if (wpa_drv_set_wpa(wpa_s, 0) < 0) {
1846                         wpa_printf(MSG_ERROR, "Failed to disable WPA in the "
1847                                    "driver.");
1848                 }
1849
1850                 wpa_drv_set_drop_unencrypted(wpa_s, 0);
1851                 wpa_drv_set_countermeasures(wpa_s, 0);
1852                 wpa_clear_keys(wpa_s, NULL);
1853         }
1854
1855         wpas_dbus_unregister_iface(wpa_s);
1856
1857         wpa_supplicant_cleanup(wpa_s);
1858
1859         if (wpa_s->drv_priv)
1860                 wpa_drv_deinit(wpa_s);
1861 }
1862
1863
1864 /**
1865  * wpa_supplicant_add_iface - Add a new network interface
1866  * @global: Pointer to global data from wpa_supplicant_init()
1867  * @iface: Interface configuration options
1868  * Returns: Pointer to the created interface or %NULL on failure
1869  *
1870  * This function is used to add new network interfaces for %wpa_supplicant.
1871  * This can be called before wpa_supplicant_run() to add interfaces before the
1872  * main event loop has been started. In addition, new interfaces can be added
1873  * dynamically while %wpa_supplicant is already running. This could happen,
1874  * e.g., when a hotplug network adapter is inserted.
1875  */
1876 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
1877                                                  struct wpa_interface *iface)
1878 {
1879         struct wpa_supplicant *wpa_s;
1880
1881         if (global == NULL || iface == NULL)
1882                 return NULL;
1883
1884         wpa_s = wpa_supplicant_alloc();
1885         if (wpa_s == NULL)
1886                 return NULL;
1887
1888         if (wpa_supplicant_init_iface(wpa_s, iface) ||
1889             wpa_supplicant_init_iface2(wpa_s)) {
1890                 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
1891                            iface->ifname);
1892                 wpa_supplicant_deinit_iface(wpa_s);
1893                 os_free(wpa_s);
1894                 return NULL;
1895         }
1896
1897         wpa_s->global = global;
1898
1899         /* Register the interface with the dbus control interface */
1900         if (wpas_dbus_register_iface(wpa_s)) {
1901                 wpa_supplicant_deinit_iface(wpa_s);
1902                 os_free(wpa_s);
1903                 return NULL;
1904         }
1905
1906         wpa_s->next = global->ifaces;
1907         global->ifaces = wpa_s;
1908
1909         wpa_printf(MSG_DEBUG, "Added interface %s", wpa_s->ifname);
1910
1911         return wpa_s;
1912 }
1913
1914
1915 /**
1916  * wpa_supplicant_remove_iface - Remove a network interface
1917  * @global: Pointer to global data from wpa_supplicant_init()
1918  * @wpa_s: Pointer to the network interface to be removed
1919  * Returns: 0 if interface was removed, -1 if interface was not found
1920  *
1921  * This function can be used to dynamically remove network interfaces from
1922  * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
1923  * addition, this function is used to remove all remaining interfaces when
1924  * %wpa_supplicant is terminated.
1925  */
1926 int wpa_supplicant_remove_iface(struct wpa_global *global,
1927                                 struct wpa_supplicant *wpa_s)
1928 {
1929         struct wpa_supplicant *prev;
1930
1931         /* Remove interface from the global list of interfaces */
1932         prev = global->ifaces;
1933         if (prev == wpa_s) {
1934                 global->ifaces = wpa_s->next;
1935         } else {
1936                 while (prev && prev->next != wpa_s)
1937                         prev = prev->next;
1938                 if (prev == NULL)
1939                         return -1;
1940                 prev->next = wpa_s->next;
1941         }
1942
1943         wpa_printf(MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
1944
1945         wpa_supplicant_deinit_iface(wpa_s);
1946         os_free(wpa_s);
1947
1948         return 0;
1949 }
1950
1951
1952 /**
1953  * wpa_supplicant_get_iface - Get a new network interface
1954  * @global: Pointer to global data from wpa_supplicant_init()
1955  * @ifname: Interface name
1956  * Returns: Pointer to the interface or %NULL if not found
1957  */
1958 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
1959                                                  const char *ifname)
1960 {
1961         struct wpa_supplicant *wpa_s;
1962
1963         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
1964                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
1965                         return wpa_s;
1966         }
1967         return NULL;
1968 }
1969
1970
1971 /**
1972  * wpa_supplicant_init - Initialize %wpa_supplicant
1973  * @params: Parameters for %wpa_supplicant
1974  * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
1975  *
1976  * This function is used to initialize %wpa_supplicant. After successful
1977  * initialization, the returned data pointer can be used to add and remove
1978  * network interfaces, and eventually, to deinitialize %wpa_supplicant.
1979  */
1980 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
1981 {
1982         struct wpa_global *global;
1983         int ret;
1984
1985         if (params == NULL)
1986                 return NULL;
1987
1988         wpa_debug_open_file(params->wpa_debug_file_path);
1989
1990         ret = eap_peer_register_methods();
1991         if (ret) {
1992                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1993                 if (ret == -2)
1994                         wpa_printf(MSG_ERROR, "Two or more EAP methods used "
1995                                    "the same EAP type.");
1996                 return NULL;
1997         }
1998
1999         global = os_zalloc(sizeof(*global));
2000         if (global == NULL)
2001                 return NULL;
2002         global->params.daemonize = params->daemonize;
2003         global->params.wait_for_monitor = params->wait_for_monitor;
2004         global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
2005         if (params->pid_file)
2006                 global->params.pid_file = os_strdup(params->pid_file);
2007         if (params->ctrl_interface)
2008                 global->params.ctrl_interface =
2009                         os_strdup(params->ctrl_interface);
2010         wpa_debug_level = global->params.wpa_debug_level =
2011                 params->wpa_debug_level;
2012         wpa_debug_show_keys = global->params.wpa_debug_show_keys =
2013                 params->wpa_debug_show_keys;
2014         wpa_debug_timestamp = global->params.wpa_debug_timestamp =
2015                 params->wpa_debug_timestamp;
2016
2017         if (eloop_init(global)) {
2018                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
2019                 wpa_supplicant_deinit(global);
2020                 return NULL;
2021         }
2022
2023         global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
2024         if (global->ctrl_iface == NULL) {
2025                 wpa_supplicant_deinit(global);
2026                 return NULL;
2027         }
2028
2029         if (global->params.dbus_ctrl_interface) {
2030                 global->dbus_ctrl_iface =
2031                         wpa_supplicant_dbus_ctrl_iface_init(global);
2032                 if (global->dbus_ctrl_iface == NULL) {
2033                         wpa_supplicant_deinit(global);
2034                         return NULL;
2035                 }
2036         }
2037
2038         return global;
2039 }
2040
2041
2042 /**
2043  * wpa_supplicant_run - Run the %wpa_supplicant main event loop
2044  * @global: Pointer to global data from wpa_supplicant_init()
2045  * Returns: 0 after successful event loop run, -1 on failure
2046  *
2047  * This function starts the main event loop and continues running as long as
2048  * there are any remaining events. In most cases, this function is running as
2049  * long as the %wpa_supplicant process in still in use.
2050  */
2051 int wpa_supplicant_run(struct wpa_global *global)
2052 {
2053         struct wpa_supplicant *wpa_s;
2054
2055         if (global->params.daemonize &&
2056             wpa_supplicant_daemon(global->params.pid_file))
2057                 return -1;
2058
2059         if (global->params.wait_for_monitor) {
2060                 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
2061                         if (wpa_s->ctrl_iface)
2062                                 wpa_supplicant_ctrl_iface_wait(
2063                                         wpa_s->ctrl_iface);
2064         }
2065
2066         eloop_register_signal_terminate(wpa_supplicant_terminate, NULL);
2067         eloop_register_signal_reconfig(wpa_supplicant_reconfig, NULL);
2068
2069         eloop_run();
2070
2071         return 0;
2072 }
2073
2074
2075 /**
2076  * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
2077  * @global: Pointer to global data from wpa_supplicant_init()
2078  *
2079  * This function is called to deinitialize %wpa_supplicant and to free all
2080  * allocated resources. Remaining network interfaces will also be removed.
2081  */
2082 void wpa_supplicant_deinit(struct wpa_global *global)
2083 {
2084         if (global == NULL)
2085                 return;
2086
2087         while (global->ifaces)
2088                 wpa_supplicant_remove_iface(global, global->ifaces);
2089
2090         if (global->ctrl_iface)
2091                 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
2092         if (global->dbus_ctrl_iface)
2093                 wpa_supplicant_dbus_ctrl_iface_deinit(global->dbus_ctrl_iface);
2094
2095         eap_peer_unregister_methods();
2096
2097         eloop_destroy();
2098
2099         if (global->params.pid_file) {
2100                 os_daemonize_terminate(global->params.pid_file);
2101                 os_free(global->params.pid_file);
2102         }
2103         os_free(global->params.ctrl_interface);
2104
2105         os_free(global);
2106         wpa_debug_close_file();
2107 }