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00019 #include "includes.h"
00020
00021 #include "common.h"
00022 #include "eapol_supp/eapol_supp_sm.h"
00023 #include "eap_peer/eap.h"
00024 #include "eap_server/eap_methods.h"
00025 #include "rsn_supp/wpa.h"
00026 #include "eloop.h"
00027 #include "config.h"
00028 #include "l2_packet/l2_packet.h"
00029 #include "wpa_supplicant_i.h"
00030 #include "driver_i.h"
00031 #include "ctrl_iface.h"
00032 #include "pcsc_funcs.h"
00033 #include "common/version.h"
00034 #include "rsn_supp/preauth.h"
00035 #include "rsn_supp/pmksa_cache.h"
00036 #include "common/wpa_ctrl.h"
00037 #include "mlme.h"
00038 #include "common/ieee802_11_defs.h"
00039 #include "blacklist.h"
00040 #include "wpas_glue.h"
00041 #include "wps_supplicant.h"
00042 #include "ibss_rsn.h"
00043 #include "sme.h"
00044 #include "ap.h"
00045 #include "notify.h"
00046 #include "bgscan.h"
00047 #include "bss.h"
00048 #include "scan.h"
00049
00050 const char *wpa_supplicant_version =
00051 "wpa_supplicant v" VERSION_STR "\n"
00052 "Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi> and contributors";
00053
00054 const char *wpa_supplicant_license =
00055 "This program is free software. You can distribute it and/or modify it\n"
00056 "under the terms of the GNU General Public License version 2.\n"
00057 "\n"
00058 "Alternatively, this software may be distributed under the terms of the\n"
00059 "BSD license. See README and COPYING for more details.\n"
00060 #ifdef EAP_TLS_OPENSSL
00061 "\nThis product includes software developed by the OpenSSL Project\n"
00062 "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
00063 #endif
00064 ;
00065
00066 #ifndef CONFIG_NO_STDOUT_DEBUG
00067
00068 const char *wpa_supplicant_full_license1 =
00069 "This program is free software; you can redistribute it and/or modify\n"
00070 "it under the terms of the GNU General Public License version 2 as\n"
00071 "published by the Free Software Foundation.\n"
00072 "\n"
00073 "This program is distributed in the hope that it will be useful,\n"
00074 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
00075 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
00076 "GNU General Public License for more details.\n"
00077 "\n";
00078 const char *wpa_supplicant_full_license2 =
00079 "You should have received a copy of the GNU General Public License\n"
00080 "along with this program; if not, write to the Free Software\n"
00081 "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n"
00082 "\n"
00083 "Alternatively, this software may be distributed under the terms of the\n"
00084 "BSD license.\n"
00085 "\n"
00086 "Redistribution and use in source and binary forms, with or without\n"
00087 "modification, are permitted provided that the following conditions are\n"
00088 "met:\n"
00089 "\n";
00090 const char *wpa_supplicant_full_license3 =
00091 "1. Redistributions of source code must retain the above copyright\n"
00092 " notice, this list of conditions and the following disclaimer.\n"
00093 "\n"
00094 "2. Redistributions in binary form must reproduce the above copyright\n"
00095 " notice, this list of conditions and the following disclaimer in the\n"
00096 " documentation and/or other materials provided with the distribution.\n"
00097 "\n";
00098 const char *wpa_supplicant_full_license4 =
00099 "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
00100 " names of its contributors may be used to endorse or promote products\n"
00101 " derived from this software without specific prior written permission.\n"
00102 "\n"
00103 "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
00104 "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
00105 "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
00106 "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
00107 const char *wpa_supplicant_full_license5 =
00108 "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
00109 "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
00110 "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
00111 "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
00112 "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
00113 "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
00114 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
00115 "\n";
00116 #endif
00117
00118 extern int wpa_debug_level;
00119 extern int wpa_debug_show_keys;
00120 extern int wpa_debug_timestamp;
00121 extern struct wpa_driver_ops *wpa_drivers[];
00122
00123
00124 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
00125 {
00126 int i, set = 0;
00127
00128 for (i = 0; i < NUM_WEP_KEYS; i++) {
00129 if (ssid->wep_key_len[i] == 0)
00130 continue;
00131
00132 set = 1;
00133 wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
00134 (u8 *) "\xff\xff\xff\xff\xff\xff",
00135 i, i == ssid->wep_tx_keyidx, (u8 *) "", 0,
00136 ssid->wep_key[i], ssid->wep_key_len[i]);
00137 }
00138
00139 return set;
00140 }
00141
00142
00143 static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s,
00144 struct wpa_ssid *ssid)
00145 {
00146 u8 key[32];
00147 size_t keylen;
00148 enum wpa_alg alg;
00149 u8 seq[6] = { 0 };
00150
00151
00152
00153
00154 if (ssid->mode != WPAS_MODE_IBSS) {
00155 wpa_printf(MSG_INFO, "WPA: Invalid mode %d (not IBSS/ad-hoc) "
00156 "for WPA-None", ssid->mode);
00157 return -1;
00158 }
00159
00160 if (!ssid->psk_set) {
00161 wpa_printf(MSG_INFO, "WPA: No PSK configured for WPA-None");
00162 return -1;
00163 }
00164
00165 switch (wpa_s->group_cipher) {
00166 case WPA_CIPHER_CCMP:
00167 os_memcpy(key, ssid->psk, 16);
00168 keylen = 16;
00169 alg = WPA_ALG_CCMP;
00170 break;
00171 case WPA_CIPHER_TKIP:
00172
00173 os_memcpy(key, ssid->psk, 16 + 8);
00174 os_memcpy(key + 16 + 8, ssid->psk + 16, 8);
00175 keylen = 32;
00176 alg = WPA_ALG_TKIP;
00177 break;
00178 default:
00179 wpa_printf(MSG_INFO, "WPA: Invalid group cipher %d for "
00180 "WPA-None", wpa_s->group_cipher);
00181 return -1;
00182 }
00183
00184
00185
00186
00187 return wpa_drv_set_key(wpa_s, alg, (u8 *) "\xff\xff\xff\xff\xff\xff",
00188 0, 1, seq, 6, key, keylen);
00189 }
00190
00191
00192 static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx)
00193 {
00194 struct wpa_supplicant *wpa_s = eloop_ctx;
00195 const u8 *bssid = wpa_s->bssid;
00196 if (is_zero_ether_addr(bssid))
00197 bssid = wpa_s->pending_bssid;
00198 wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.",
00199 MAC2STR(bssid));
00200 wpa_blacklist_add(wpa_s, bssid);
00201 wpa_sm_notify_disassoc(wpa_s->wpa);
00202 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
00203 wpa_s->reassociate = 1;
00204 wpa_supplicant_req_scan(wpa_s, 0, 0);
00205 }
00206
00207
00217 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
00218 int sec, int usec)
00219 {
00220 if (wpa_s->conf && wpa_s->conf->ap_scan == 0 &&
00221 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED))
00222 return;
00223
00224 wpa_msg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec "
00225 "%d usec", sec, usec);
00226 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
00227 eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL);
00228 }
00229
00230
00239 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s)
00240 {
00241 wpa_msg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout");
00242 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
00243 wpa_blacklist_del(wpa_s, wpa_s->bssid);
00244 }
00245
00246
00254 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s)
00255 {
00256 #ifdef IEEE8021X_EAPOL
00257 struct eapol_config eapol_conf;
00258 struct wpa_ssid *ssid = wpa_s->current_ssid;
00259
00260 #ifdef CONFIG_IBSS_RSN
00261 if (ssid->mode == WPAS_MODE_IBSS &&
00262 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
00263 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
00264
00265
00266
00267
00268 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
00269 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
00270 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
00271 return;
00272 }
00273 #endif
00274
00275 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
00276 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
00277
00278 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
00279 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
00280 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
00281 else
00282 eapol_sm_notify_portControl(wpa_s->eapol, Auto);
00283
00284 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
00285 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
00286 eapol_conf.accept_802_1x_keys = 1;
00287 eapol_conf.required_keys = 0;
00288 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) {
00289 eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST;
00290 }
00291 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) {
00292 eapol_conf.required_keys |=
00293 EAPOL_REQUIRE_KEY_BROADCAST;
00294 }
00295
00296 if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED))
00297 eapol_conf.required_keys = 0;
00298 }
00299 if (wpa_s->conf)
00300 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
00301 eapol_conf.workaround = ssid->eap_workaround;
00302 eapol_conf.eap_disabled =
00303 !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
00304 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
00305 wpa_s->key_mgmt != WPA_KEY_MGMT_WPS;
00306 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
00307 #endif
00308 }
00309
00310
00320 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
00321 struct wpa_ssid *ssid)
00322 {
00323 int i;
00324
00325 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
00326 wpa_s->key_mgmt = WPA_KEY_MGMT_WPS;
00327 else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)
00328 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
00329 else
00330 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
00331 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
00332 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
00333 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
00334 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
00335 wpa_s->group_cipher = WPA_CIPHER_NONE;
00336 wpa_s->mgmt_group_cipher = 0;
00337
00338 for (i = 0; i < NUM_WEP_KEYS; i++) {
00339 if (ssid->wep_key_len[i] > 5) {
00340 wpa_s->pairwise_cipher = WPA_CIPHER_WEP104;
00341 wpa_s->group_cipher = WPA_CIPHER_WEP104;
00342 break;
00343 } else if (ssid->wep_key_len[i] > 0) {
00344 wpa_s->pairwise_cipher = WPA_CIPHER_WEP40;
00345 wpa_s->group_cipher = WPA_CIPHER_WEP40;
00346 break;
00347 }
00348 }
00349
00350 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0);
00351 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
00352 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
00353 wpa_s->pairwise_cipher);
00354 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
00355 #ifdef CONFIG_IEEE80211W
00356 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
00357 wpa_s->mgmt_group_cipher);
00358 #endif
00359
00360 pmksa_cache_clear_current(wpa_s->wpa);
00361 }
00362
00363
00364 static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
00365 {
00366 bgscan_deinit(wpa_s);
00367 scard_deinit(wpa_s->scard);
00368 wpa_s->scard = NULL;
00369 wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
00370 eapol_sm_register_scard_ctx(wpa_s->eapol, NULL);
00371 l2_packet_deinit(wpa_s->l2);
00372 wpa_s->l2 = NULL;
00373 if (wpa_s->l2_br) {
00374 l2_packet_deinit(wpa_s->l2_br);
00375 wpa_s->l2_br = NULL;
00376 }
00377
00378 if (wpa_s->ctrl_iface) {
00379 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
00380 wpa_s->ctrl_iface = NULL;
00381 }
00382 if (wpa_s->conf != NULL) {
00383 struct wpa_ssid *ssid;
00384 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
00385 wpas_notify_network_removed(wpa_s, ssid);
00386 wpa_config_free(wpa_s->conf);
00387 wpa_s->conf = NULL;
00388 }
00389
00390 os_free(wpa_s->confname);
00391 wpa_s->confname = NULL;
00392
00393 wpa_sm_set_eapol(wpa_s->wpa, NULL);
00394 eapol_sm_deinit(wpa_s->eapol);
00395 wpa_s->eapol = NULL;
00396
00397 rsn_preauth_deinit(wpa_s->wpa);
00398
00399 pmksa_candidate_free(wpa_s->wpa);
00400 wpa_sm_deinit(wpa_s->wpa);
00401 wpa_s->wpa = NULL;
00402 wpa_blacklist_clear(wpa_s);
00403
00404 wpa_bss_deinit(wpa_s);
00405
00406 wpa_supplicant_cancel_scan(wpa_s);
00407 wpa_supplicant_cancel_auth_timeout(wpa_s);
00408
00409 ieee80211_sta_deinit(wpa_s);
00410
00411 wpas_wps_deinit(wpa_s);
00412
00413 wpabuf_free(wpa_s->pending_eapol_rx);
00414 wpa_s->pending_eapol_rx = NULL;
00415
00416 #ifdef CONFIG_IBSS_RSN
00417 ibss_rsn_deinit(wpa_s->ibss_rsn);
00418 wpa_s->ibss_rsn = NULL;
00419 #endif
00420
00421 #ifdef CONFIG_SME
00422 os_free(wpa_s->sme.ft_ies);
00423 wpa_s->sme.ft_ies = NULL;
00424 wpa_s->sme.ft_ies_len = 0;
00425 #endif
00426
00427 #ifdef CONFIG_AP
00428 wpa_supplicant_ap_deinit(wpa_s);
00429 #endif
00430 }
00431
00432
00441 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
00442 {
00443 u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff";
00444
00445 if (wpa_s->keys_cleared) {
00446
00447
00448
00449
00450
00451
00452
00453 wpa_printf(MSG_DEBUG, "No keys have been configured - "
00454 "skip key clearing");
00455 return;
00456 }
00457
00458
00459 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0);
00460 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0);
00461 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0);
00462 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0);
00463 #ifdef CONFIG_IEEE80211W
00464 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 4, 0, NULL, 0, NULL, 0);
00465 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 5, 0, NULL, 0, NULL, 0);
00466 #endif
00467 if (addr) {
00468 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
00469 0);
00470
00471 wpa_drv_mlme_setprotection(
00472 wpa_s, addr,
00473 MLME_SETPROTECTION_PROTECT_TYPE_NONE,
00474 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
00475 }
00476 wpa_s->keys_cleared = 1;
00477 }
00478
00479
00485 const char * wpa_supplicant_state_txt(enum wpa_states state)
00486 {
00487 switch (state) {
00488 case WPA_DISCONNECTED:
00489 return "DISCONNECTED";
00490 case WPA_INACTIVE:
00491 return "INACTIVE";
00492 case WPA_SCANNING:
00493 return "SCANNING";
00494 case WPA_AUTHENTICATING:
00495 return "AUTHENTICATING";
00496 case WPA_ASSOCIATING:
00497 return "ASSOCIATING";
00498 case WPA_ASSOCIATED:
00499 return "ASSOCIATED";
00500 case WPA_4WAY_HANDSHAKE:
00501 return "4WAY_HANDSHAKE";
00502 case WPA_GROUP_HANDSHAKE:
00503 return "GROUP_HANDSHAKE";
00504 case WPA_COMPLETED:
00505 return "COMPLETED";
00506 default:
00507 return "UNKNOWN";
00508 }
00509 }
00510
00511
00520 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
00521 enum wpa_states state)
00522 {
00523 enum wpa_states old_state = wpa_s->wpa_state;
00524
00525 wpa_printf(MSG_DEBUG, "State: %s -> %s",
00526 wpa_supplicant_state_txt(wpa_s->wpa_state),
00527 wpa_supplicant_state_txt(state));
00528
00529 if (state != WPA_SCANNING)
00530 wpa_supplicant_notify_scanning(wpa_s, 0);
00531
00532 if (state == WPA_COMPLETED && wpa_s->new_connection) {
00533 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
00534 struct wpa_ssid *ssid = wpa_s->current_ssid;
00535 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to "
00536 MACSTR " completed %s [id=%d id_str=%s]",
00537 MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ?
00538 "(reauth)" : "(auth)",
00539 ssid ? ssid->id : -1,
00540 ssid && ssid->id_str ? ssid->id_str : "");
00541 #endif
00542 wpa_s->new_connection = 0;
00543 wpa_s->reassociated_connection = 1;
00544 wpa_drv_set_operstate(wpa_s, 1);
00545 wpa_s->after_wps = 0;
00546 } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
00547 state == WPA_ASSOCIATED) {
00548 wpa_s->new_connection = 1;
00549 wpa_drv_set_operstate(wpa_s, 0);
00550 }
00551 wpa_s->wpa_state = state;
00552
00553 if (wpa_s->wpa_state != old_state)
00554 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
00555 }
00556
00557
00558 void wpa_supplicant_terminate_proc(struct wpa_global *global)
00559 {
00560 int pending = 0;
00561 #ifdef CONFIG_WPS
00562 struct wpa_supplicant *wpa_s = global->ifaces;
00563 while (wpa_s) {
00564 if (wpas_wps_terminate_pending(wpa_s) == 1)
00565 pending = 1;
00566 wpa_s = wpa_s->next;
00567 }
00568 #endif
00569 if (pending)
00570 return;
00571 eloop_terminate();
00572 }
00573
00574
00575 static void wpa_supplicant_terminate(int sig, void *signal_ctx)
00576 {
00577 struct wpa_global *global = signal_ctx;
00578 struct wpa_supplicant *wpa_s;
00579 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
00580 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d "
00581 "received", sig);
00582 }
00583 wpa_supplicant_terminate_proc(global);
00584 }
00585
00586
00587 static void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s)
00588 {
00589 enum wpa_states old_state = wpa_s->wpa_state;
00590
00591 wpa_s->pairwise_cipher = 0;
00592 wpa_s->group_cipher = 0;
00593 wpa_s->mgmt_group_cipher = 0;
00594 wpa_s->key_mgmt = 0;
00595 wpa_s->wpa_state = WPA_DISCONNECTED;
00596
00597 if (wpa_s->wpa_state != old_state)
00598 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
00599 }
00600
00601
00613 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
00614 {
00615 struct wpa_config *conf;
00616 struct wpa_ssid *old_ssid;
00617 int reconf_ctrl;
00618 int old_ap_scan;
00619
00620 if (wpa_s->confname == NULL)
00621 return -1;
00622 conf = wpa_config_read(wpa_s->confname);
00623 if (conf == NULL) {
00624 wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration "
00625 "file '%s' - exiting", wpa_s->confname);
00626 return -1;
00627 }
00628
00629 reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface
00630 || (conf->ctrl_interface && wpa_s->conf->ctrl_interface &&
00631 os_strcmp(conf->ctrl_interface,
00632 wpa_s->conf->ctrl_interface) != 0);
00633
00634 if (reconf_ctrl && wpa_s->ctrl_iface) {
00635 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
00636 wpa_s->ctrl_iface = NULL;
00637 }
00638
00639 eapol_sm_invalidate_cached_session(wpa_s->eapol);
00640 old_ssid = wpa_s->current_ssid;
00641 wpa_s->current_ssid = NULL;
00642 if (old_ssid != wpa_s->current_ssid)
00643 wpas_notify_network_changed(wpa_s);
00644
00645
00646
00647
00648
00649 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
00650
00651
00652
00653
00654 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
00655 }
00656 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
00657 wpa_sm_set_config(wpa_s->wpa, NULL);
00658 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
00659 rsn_preauth_deinit(wpa_s->wpa);
00660
00661 old_ap_scan = wpa_s->conf->ap_scan;
00662 wpa_config_free(wpa_s->conf);
00663 wpa_s->conf = conf;
00664 if (old_ap_scan != wpa_s->conf->ap_scan)
00665 wpas_notify_ap_scan_changed(wpa_s);
00666
00667 if (reconf_ctrl)
00668 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
00669
00670 wpa_supplicant_clear_status(wpa_s);
00671 wpa_s->reassociate = 1;
00672 wpa_supplicant_req_scan(wpa_s, 0, 0);
00673 wpa_msg(wpa_s, MSG_DEBUG, "Reconfiguration completed");
00674 return 0;
00675 }
00676
00677
00678 static void wpa_supplicant_reconfig(int sig, void *signal_ctx)
00679 {
00680 struct wpa_global *global = signal_ctx;
00681 struct wpa_supplicant *wpa_s;
00682 wpa_printf(MSG_DEBUG, "Signal %d received - reconfiguring", sig);
00683 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
00684 if (wpa_supplicant_reload_configuration(wpa_s) < 0) {
00685 wpa_supplicant_terminate_proc(global);
00686 }
00687 }
00688 }
00689
00690
00691 enum wpa_cipher cipher_suite2driver(int cipher)
00692 {
00693 switch (cipher) {
00694 case WPA_CIPHER_NONE:
00695 return CIPHER_NONE;
00696 case WPA_CIPHER_WEP40:
00697 return CIPHER_WEP40;
00698 case WPA_CIPHER_WEP104:
00699 return CIPHER_WEP104;
00700 case WPA_CIPHER_CCMP:
00701 return CIPHER_CCMP;
00702 case WPA_CIPHER_TKIP:
00703 default:
00704 return CIPHER_TKIP;
00705 }
00706 }
00707
00708
00709 enum wpa_key_mgmt key_mgmt2driver(int key_mgmt)
00710 {
00711 switch (key_mgmt) {
00712 case WPA_KEY_MGMT_NONE:
00713 return KEY_MGMT_NONE;
00714 case WPA_KEY_MGMT_IEEE8021X_NO_WPA:
00715 return KEY_MGMT_802_1X_NO_WPA;
00716 case WPA_KEY_MGMT_IEEE8021X:
00717 return KEY_MGMT_802_1X;
00718 case WPA_KEY_MGMT_WPA_NONE:
00719 return KEY_MGMT_WPA_NONE;
00720 case WPA_KEY_MGMT_FT_IEEE8021X:
00721 return KEY_MGMT_FT_802_1X;
00722 case WPA_KEY_MGMT_FT_PSK:
00723 return KEY_MGMT_FT_PSK;
00724 case WPA_KEY_MGMT_IEEE8021X_SHA256:
00725 return KEY_MGMT_802_1X_SHA256;
00726 case WPA_KEY_MGMT_PSK_SHA256:
00727 return KEY_MGMT_PSK_SHA256;
00728 case WPA_KEY_MGMT_WPS:
00729 return KEY_MGMT_WPS;
00730 case WPA_KEY_MGMT_PSK:
00731 default:
00732 return KEY_MGMT_PSK;
00733 }
00734 }
00735
00736
00737 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s,
00738 struct wpa_ssid *ssid,
00739 struct wpa_ie_data *ie)
00740 {
00741 int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie);
00742 if (ret) {
00743 if (ret == -2) {
00744 wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE "
00745 "from association info");
00746 }
00747 return -1;
00748 }
00749
00750 wpa_printf(MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set cipher "
00751 "suites");
00752 if (!(ie->group_cipher & ssid->group_cipher)) {
00753 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group "
00754 "cipher 0x%x (mask 0x%x) - reject",
00755 ie->group_cipher, ssid->group_cipher);
00756 return -1;
00757 }
00758 if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) {
00759 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise "
00760 "cipher 0x%x (mask 0x%x) - reject",
00761 ie->pairwise_cipher, ssid->pairwise_cipher);
00762 return -1;
00763 }
00764 if (!(ie->key_mgmt & ssid->key_mgmt)) {
00765 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key "
00766 "management 0x%x (mask 0x%x) - reject",
00767 ie->key_mgmt, ssid->key_mgmt);
00768 return -1;
00769 }
00770
00771 #ifdef CONFIG_IEEE80211W
00772 if (!(ie->capabilities & WPA_CAPABILITY_MFPC) &&
00773 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
00774 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP "
00775 "that does not support management frame protection - "
00776 "reject");
00777 return -1;
00778 }
00779 #endif
00780
00781 return 0;
00782 }
00783
00784
00799 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
00800 struct wpa_bss *bss, struct wpa_ssid *ssid,
00801 u8 *wpa_ie, size_t *wpa_ie_len)
00802 {
00803 struct wpa_ie_data ie;
00804 int sel, proto;
00805 const u8 *bss_wpa, *bss_rsn;
00806
00807 if (bss) {
00808 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
00809 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
00810 } else
00811 bss_wpa = bss_rsn = NULL;
00812
00813 if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) &&
00814 wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 &&
00815 (ie.group_cipher & ssid->group_cipher) &&
00816 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
00817 (ie.key_mgmt & ssid->key_mgmt)) {
00818 wpa_msg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
00819 proto = WPA_PROTO_RSN;
00820 } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
00821 wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 &&
00822 (ie.group_cipher & ssid->group_cipher) &&
00823 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
00824 (ie.key_mgmt & ssid->key_mgmt)) {
00825 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0");
00826 proto = WPA_PROTO_WPA;
00827 } else if (bss) {
00828 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
00829 return -1;
00830 } else {
00831 if (ssid->proto & WPA_PROTO_RSN)
00832 proto = WPA_PROTO_RSN;
00833 else
00834 proto = WPA_PROTO_WPA;
00835 if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) {
00836 os_memset(&ie, 0, sizeof(ie));
00837 ie.group_cipher = ssid->group_cipher;
00838 ie.pairwise_cipher = ssid->pairwise_cipher;
00839 ie.key_mgmt = ssid->key_mgmt;
00840 #ifdef CONFIG_IEEE80211W
00841 ie.mgmt_group_cipher =
00842 ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ?
00843 WPA_CIPHER_AES_128_CMAC : 0;
00844 #endif
00845 wpa_printf(MSG_DEBUG, "WPA: Set cipher suites based "
00846 "on configuration");
00847 } else
00848 proto = ie.proto;
00849 }
00850
00851 wpa_printf(MSG_DEBUG, "WPA: Selected cipher suites: group %d "
00852 "pairwise %d key_mgmt %d proto %d",
00853 ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto);
00854 #ifdef CONFIG_IEEE80211W
00855 if (ssid->ieee80211w) {
00856 wpa_printf(MSG_DEBUG, "WPA: Selected mgmt group cipher %d",
00857 ie.mgmt_group_cipher);
00858 }
00859 #endif
00860
00861 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto);
00862 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
00863 !!(ssid->proto & WPA_PROTO_RSN));
00864
00865 if (bss || !wpa_s->ap_ies_from_associnfo) {
00866 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
00867 bss_wpa ? 2 + bss_wpa[1] : 0) ||
00868 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
00869 bss_rsn ? 2 + bss_rsn[1] : 0))
00870 return -1;
00871 }
00872
00873 sel = ie.group_cipher & ssid->group_cipher;
00874 if (sel & WPA_CIPHER_CCMP) {
00875 wpa_s->group_cipher = WPA_CIPHER_CCMP;
00876 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP");
00877 } else if (sel & WPA_CIPHER_TKIP) {
00878 wpa_s->group_cipher = WPA_CIPHER_TKIP;
00879 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP");
00880 } else if (sel & WPA_CIPHER_WEP104) {
00881 wpa_s->group_cipher = WPA_CIPHER_WEP104;
00882 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104");
00883 } else if (sel & WPA_CIPHER_WEP40) {
00884 wpa_s->group_cipher = WPA_CIPHER_WEP40;
00885 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40");
00886 } else {
00887 wpa_printf(MSG_WARNING, "WPA: Failed to select group cipher.");
00888 return -1;
00889 }
00890
00891 sel = ie.pairwise_cipher & ssid->pairwise_cipher;
00892 if (sel & WPA_CIPHER_CCMP) {
00893 wpa_s->pairwise_cipher = WPA_CIPHER_CCMP;
00894 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP");
00895 } else if (sel & WPA_CIPHER_TKIP) {
00896 wpa_s->pairwise_cipher = WPA_CIPHER_TKIP;
00897 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP");
00898 } else if (sel & WPA_CIPHER_NONE) {
00899 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
00900 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE");
00901 } else {
00902 wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise "
00903 "cipher.");
00904 return -1;
00905 }
00906
00907 sel = ie.key_mgmt & ssid->key_mgmt;
00908 if (0) {
00909 #ifdef CONFIG_IEEE80211R
00910 } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) {
00911 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X;
00912 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X");
00913 } else if (sel & WPA_KEY_MGMT_FT_PSK) {
00914 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK;
00915 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK");
00916 #endif
00917 #ifdef CONFIG_IEEE80211W
00918 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) {
00919 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256;
00920 wpa_msg(wpa_s, MSG_DEBUG,
00921 "WPA: using KEY_MGMT 802.1X with SHA256");
00922 } else if (sel & WPA_KEY_MGMT_PSK_SHA256) {
00923 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256;
00924 wpa_msg(wpa_s, MSG_DEBUG,
00925 "WPA: using KEY_MGMT PSK with SHA256");
00926 #endif
00927 } else if (sel & WPA_KEY_MGMT_IEEE8021X) {
00928 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
00929 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X");
00930 } else if (sel & WPA_KEY_MGMT_PSK) {
00931 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
00932 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK");
00933 } else if (sel & WPA_KEY_MGMT_WPA_NONE) {
00934 wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE;
00935 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE");
00936 } else {
00937 wpa_printf(MSG_WARNING, "WPA: Failed to select authenticated "
00938 "key management type.");
00939 return -1;
00940 }
00941
00942 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
00943 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
00944 wpa_s->pairwise_cipher);
00945 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
00946
00947 #ifdef CONFIG_IEEE80211W
00948 sel = ie.mgmt_group_cipher;
00949 if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION ||
00950 !(ie.capabilities & WPA_CAPABILITY_MFPC))
00951 sel = 0;
00952 if (sel & WPA_CIPHER_AES_128_CMAC) {
00953 wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
00954 wpa_msg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
00955 "AES-128-CMAC");
00956 } else {
00957 wpa_s->mgmt_group_cipher = 0;
00958 wpa_msg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
00959 }
00960 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
00961 wpa_s->mgmt_group_cipher);
00962 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w);
00963 #endif
00964
00965 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
00966 wpa_printf(MSG_WARNING, "WPA: Failed to generate WPA IE.");
00967 return -1;
00968 }
00969
00970 if (ssid->key_mgmt &
00971 (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256))
00972 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN);
00973 else
00974 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
00975
00976 return 0;
00977 }
00978
00979
00988 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
00989 struct wpa_bss *bss, struct wpa_ssid *ssid)
00990 {
00991 u8 wpa_ie[80];
00992 size_t wpa_ie_len;
00993 int use_crypt, ret, i, bssid_changed;
00994 int algs = WPA_AUTH_ALG_OPEN;
00995 enum wpa_cipher cipher_pairwise, cipher_group;
00996 struct wpa_driver_associate_params params;
00997 int wep_keys_set = 0;
00998 struct wpa_driver_capa capa;
00999 int assoc_failed = 0;
01000 struct wpa_ssid *old_ssid;
01001
01002 if (ssid->mode == WPAS_MODE_AP) {
01003 #ifdef CONFIG_AP
01004 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) {
01005 wpa_printf(MSG_INFO, "Driver does not support AP "
01006 "mode");
01007 return;
01008 }
01009 wpa_supplicant_create_ap(wpa_s, ssid);
01010 wpa_s->current_bss = bss;
01011 #else
01012 wpa_printf(MSG_ERROR, "AP mode support not included in the "
01013 "build");
01014 #endif
01015 return;
01016 }
01017
01018 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
01019 ssid->mode == IEEE80211_MODE_INFRA) {
01020 sme_authenticate(wpa_s, bss, ssid);
01021 return;
01022 }
01023
01024 wpa_s->reassociate = 0;
01025 if (bss) {
01026 #ifdef CONFIG_IEEE80211R
01027 const u8 *ie, *md = NULL;
01028 #endif
01029 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
01030 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
01031 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
01032 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
01033 os_memset(wpa_s->bssid, 0, ETH_ALEN);
01034 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
01035 if (bssid_changed)
01036 wpas_notify_bssid_changed(wpa_s);
01037 #ifdef CONFIG_IEEE80211R
01038 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
01039 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
01040 md = ie + 2;
01041 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
01042 if (md) {
01043
01044 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
01045 }
01046 #endif
01047 #ifdef CONFIG_WPS
01048 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
01049 wpa_s->conf->ap_scan == 2 &&
01050 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
01051
01052
01053 wpa_s->scan_req = 2;
01054 wpa_s->reassociate = 1;
01055 wpa_supplicant_req_scan(wpa_s, 0, 0);
01056 return;
01057 #endif
01058 } else {
01059 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
01060 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
01061 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
01062 }
01063 wpa_supplicant_cancel_scan(wpa_s);
01064
01065
01066
01067 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
01068
01069 #ifdef IEEE8021X_EAPOL
01070 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
01071 if (ssid->leap) {
01072 if (ssid->non_leap == 0)
01073 algs = WPA_AUTH_ALG_LEAP;
01074 else
01075 algs |= WPA_AUTH_ALG_LEAP;
01076 }
01077 }
01078 #endif
01079 wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
01080 if (ssid->auth_alg) {
01081 algs = ssid->auth_alg;
01082 wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x",
01083 algs);
01084 }
01085
01086 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
01087 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
01088 (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
01089 WPA_KEY_MGMT_FT_IEEE8021X |
01090 WPA_KEY_MGMT_FT_PSK |
01091 WPA_KEY_MGMT_IEEE8021X_SHA256 |
01092 WPA_KEY_MGMT_PSK_SHA256))) {
01093 int try_opportunistic;
01094 try_opportunistic = ssid->proactive_key_caching &&
01095 (ssid->proto & WPA_PROTO_RSN);
01096 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
01097 wpa_s->current_ssid,
01098 try_opportunistic) == 0)
01099 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
01100 wpa_ie_len = sizeof(wpa_ie);
01101 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
01102 wpa_ie, &wpa_ie_len)) {
01103 wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key "
01104 "management and encryption suites");
01105 return;
01106 }
01107 } else if (ssid->key_mgmt &
01108 (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
01109 WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK |
01110 WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 |
01111 WPA_KEY_MGMT_IEEE8021X_SHA256)) {
01112 wpa_ie_len = sizeof(wpa_ie);
01113 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
01114 wpa_ie, &wpa_ie_len)) {
01115 wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key "
01116 "management and encryption suites (no scan "
01117 "results)");
01118 return;
01119 }
01120 #ifdef CONFIG_WPS
01121 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
01122 struct wpabuf *wps_ie;
01123 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
01124 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
01125 wpa_ie_len = wpabuf_len(wps_ie);
01126 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
01127 } else
01128 wpa_ie_len = 0;
01129 wpabuf_free(wps_ie);
01130 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
01131 #endif
01132 } else {
01133 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
01134 wpa_ie_len = 0;
01135 }
01136
01137 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
01138 use_crypt = 1;
01139 cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher);
01140 cipher_group = cipher_suite2driver(wpa_s->group_cipher);
01141 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
01142 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
01143 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
01144 use_crypt = 0;
01145 if (wpa_set_wep_keys(wpa_s, ssid)) {
01146 use_crypt = 1;
01147 wep_keys_set = 1;
01148 }
01149 }
01150 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
01151 use_crypt = 0;
01152
01153 #ifdef IEEE8021X_EAPOL
01154 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
01155 if ((ssid->eapol_flags &
01156 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
01157 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
01158 !wep_keys_set) {
01159 use_crypt = 0;
01160 } else {
01161
01162
01163
01164 cipher_pairwise = cipher_group = CIPHER_WEP104;
01165 }
01166 }
01167 #endif
01168
01169 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
01170
01171 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
01172 }
01173
01174 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
01175 os_memset(¶ms, 0, sizeof(params));
01176 if (bss) {
01177 params.bssid = bss->bssid;
01178 params.ssid = bss->ssid;
01179 params.ssid_len = bss->ssid_len;
01180 params.freq = bss->freq;
01181 } else {
01182 params.ssid = ssid->ssid;
01183 params.ssid_len = ssid->ssid_len;
01184 }
01185 if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 &&
01186 params.freq == 0)
01187 params.freq = ssid->frequency;
01188 params.wpa_ie = wpa_ie;
01189 params.wpa_ie_len = wpa_ie_len;
01190 params.pairwise_suite = cipher_pairwise;
01191 params.group_suite = cipher_group;
01192 params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt);
01193 params.auth_alg = algs;
01194 params.mode = ssid->mode;
01195 for (i = 0; i < NUM_WEP_KEYS; i++) {
01196 if (ssid->wep_key_len[i])
01197 params.wep_key[i] = ssid->wep_key[i];
01198 params.wep_key_len[i] = ssid->wep_key_len[i];
01199 }
01200 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
01201
01202 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
01203 (params.key_mgmt_suite == KEY_MGMT_PSK ||
01204 params.key_mgmt_suite == KEY_MGMT_FT_PSK)) {
01205 params.passphrase = ssid->passphrase;
01206 if (ssid->psk_set)
01207 params.psk = ssid->psk;
01208 }
01209
01210 params.drop_unencrypted = use_crypt;
01211
01212 #ifdef CONFIG_IEEE80211W
01213 params.mgmt_frame_protection = ssid->ieee80211w;
01214 if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) {
01215 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
01216 struct wpa_ie_data ie;
01217 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
01218 ie.capabilities &
01219 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
01220 wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: "
01221 "require MFP");
01222 params.mgmt_frame_protection =
01223 MGMT_FRAME_PROTECTION_REQUIRED;
01224 }
01225 }
01226 #endif
01227
01228 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
01229 ret = ieee80211_sta_associate(wpa_s, ¶ms);
01230 else
01231 ret = wpa_drv_associate(wpa_s, ¶ms);
01232 if (ret < 0) {
01233 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
01234 "failed");
01235
01236
01237 assoc_failed = 1;
01238 }
01239
01240 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
01241
01242
01243 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
01244
01245
01246 wpa_supplicant_cancel_auth_timeout(wpa_s);
01247 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
01248 #ifdef CONFIG_IBSS_RSN
01249 } else if (ssid->mode == WPAS_MODE_IBSS &&
01250 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
01251 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
01252 ibss_rsn_set_psk(wpa_s->ibss_rsn, ssid->psk);
01253
01254
01255
01256
01257 wpa_supplicant_cancel_auth_timeout(wpa_s);
01258 #endif
01259 } else {
01260
01261 int timeout = 60;
01262
01263 if (assoc_failed) {
01264
01265 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
01266 } else if (wpa_s->conf->ap_scan == 1) {
01267
01268 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
01269 }
01270 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
01271 }
01272
01273 if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
01274 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) {
01275
01276 wpa_set_wep_keys(wpa_s, ssid);
01277 }
01278
01279 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
01280
01281
01282
01283
01284 eapol_sm_invalidate_cached_session(wpa_s->eapol);
01285 }
01286 old_ssid = wpa_s->current_ssid;
01287 wpa_s->current_ssid = ssid;
01288 wpa_s->current_bss = bss;
01289 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
01290 wpa_supplicant_initiate_eapol(wpa_s);
01291 if (old_ssid != wpa_s->current_ssid)
01292 wpas_notify_network_changed(wpa_s);
01293 }
01294
01295
01304 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
01305 int reason_code)
01306 {
01307 struct wpa_ssid *old_ssid;
01308 u8 *addr = NULL;
01309
01310 if (!is_zero_ether_addr(wpa_s->bssid)) {
01311 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
01312 ieee80211_sta_disassociate(wpa_s, reason_code);
01313 else
01314 wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code);
01315 addr = wpa_s->bssid;
01316 }
01317 wpa_clear_keys(wpa_s, addr);
01318 wpa_supplicant_mark_disassoc(wpa_s);
01319 old_ssid = wpa_s->current_ssid;
01320 wpa_s->current_ssid = NULL;
01321 wpa_s->current_bss = NULL;
01322 wpa_sm_set_config(wpa_s->wpa, NULL);
01323 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
01324 if (old_ssid != wpa_s->current_ssid)
01325 wpas_notify_network_changed(wpa_s);
01326 }
01327
01328
01337 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
01338 int reason_code)
01339 {
01340 struct wpa_ssid *old_ssid;
01341 u8 *addr = NULL;
01342
01343 if (!is_zero_ether_addr(wpa_s->bssid)) {
01344 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
01345 ieee80211_sta_deauthenticate(wpa_s, reason_code);
01346 else
01347 wpa_drv_deauthenticate(wpa_s, wpa_s->bssid,
01348 reason_code);
01349 addr = wpa_s->bssid;
01350 }
01351 wpa_clear_keys(wpa_s, addr);
01352 wpa_supplicant_mark_disassoc(wpa_s);
01353 old_ssid = wpa_s->current_ssid;
01354 wpa_s->current_ssid = NULL;
01355 wpa_s->current_bss = NULL;
01356 wpa_sm_set_config(wpa_s->wpa, NULL);
01357 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
01358 if (old_ssid != wpa_s->current_ssid)
01359 wpas_notify_network_changed(wpa_s);
01360 }
01361
01362
01370 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
01371 struct wpa_ssid *ssid)
01372 {
01373 struct wpa_ssid *other_ssid;
01374 int was_disabled;
01375
01376 if (ssid == NULL) {
01377 other_ssid = wpa_s->conf->ssid;
01378 while (other_ssid) {
01379 if (other_ssid == wpa_s->current_ssid &&
01380 other_ssid->disabled)
01381 wpa_s->reassociate = 1;
01382
01383 was_disabled = other_ssid->disabled;
01384
01385 other_ssid->disabled = 0;
01386
01387 if (was_disabled != other_ssid->disabled)
01388 wpas_notify_network_enabled_changed(
01389 wpa_s, other_ssid);
01390
01391 other_ssid = other_ssid->next;
01392 }
01393 if (wpa_s->reassociate)
01394 wpa_supplicant_req_scan(wpa_s, 0, 0);
01395 } else if (wpa_s->current_ssid == NULL && ssid->disabled) {
01396
01397
01398
01399
01400 wpa_s->reassociate = 1;
01401 wpa_supplicant_req_scan(wpa_s, 0, 0);
01402
01403 was_disabled = ssid->disabled;
01404
01405 ssid->disabled = 0;
01406
01407 if (was_disabled != ssid->disabled)
01408 wpas_notify_network_enabled_changed(wpa_s, ssid);
01409 }
01410 }
01411
01412
01420 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
01421 struct wpa_ssid *ssid)
01422 {
01423 struct wpa_ssid *other_ssid;
01424 int was_disabled;
01425
01426 if (ssid == NULL) {
01427 other_ssid = wpa_s->conf->ssid;
01428 while (other_ssid) {
01429 was_disabled = other_ssid->disabled;
01430
01431 other_ssid->disabled = 1;
01432
01433 if (was_disabled != other_ssid->disabled)
01434 wpas_notify_network_enabled_changed(
01435 wpa_s, other_ssid);
01436
01437 other_ssid = other_ssid->next;
01438 }
01439 if (wpa_s->current_ssid)
01440 wpa_supplicant_disassociate(
01441 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
01442 } else {
01443 if (ssid == wpa_s->current_ssid)
01444 wpa_supplicant_disassociate(
01445 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
01446
01447 was_disabled = ssid->disabled;
01448
01449 ssid->disabled = 1;
01450
01451 if (was_disabled != ssid->disabled)
01452 wpas_notify_network_enabled_changed(wpa_s, ssid);
01453 }
01454 }
01455
01456
01462 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
01463 struct wpa_ssid *ssid)
01464 {
01465
01466 struct wpa_ssid *other_ssid;
01467
01468 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid)
01469 wpa_supplicant_disassociate(
01470 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
01471
01472
01473
01474
01475
01476 other_ssid = wpa_s->conf->ssid;
01477 while (other_ssid) {
01478 int was_disabled = other_ssid->disabled;
01479
01480 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
01481
01482 if (was_disabled != other_ssid->disabled)
01483 wpas_notify_network_enabled_changed(wpa_s, other_ssid);
01484
01485 other_ssid = other_ssid->next;
01486 }
01487 wpa_s->disconnected = 0;
01488 wpa_s->reassociate = 1;
01489 wpa_supplicant_req_scan(wpa_s, 0, 0);
01490
01491 if (ssid)
01492 wpas_notify_network_selected(wpa_s, ssid);
01493 }
01494
01495
01503 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan)
01504 {
01505
01506 int old_ap_scan;
01507
01508 if (ap_scan < 0 || ap_scan > 2)
01509 return -1;
01510
01511 old_ap_scan = wpa_s->conf->ap_scan;
01512 wpa_s->conf->ap_scan = ap_scan;
01513
01514 if (old_ap_scan != wpa_s->conf->ap_scan)
01515 wpas_notify_ap_scan_changed(wpa_s);
01516
01517 return 0;
01518 }
01519
01520
01529 int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level,
01530 int debug_timestamp, int debug_show_keys)
01531 {
01532
01533 int old_level, old_timestamp, old_show_keys;
01534
01535
01536 if (debug_level != MSG_MSGDUMP &&
01537 debug_level != MSG_DEBUG &&
01538 debug_level != MSG_INFO &&
01539 debug_level != MSG_WARNING &&
01540 debug_level != MSG_ERROR)
01541 return -1;
01542
01543 old_level = wpa_debug_level;
01544 old_timestamp = wpa_debug_timestamp;
01545 old_show_keys = wpa_debug_show_keys;
01546
01547 wpa_debug_level = debug_level;
01548 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
01549 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
01550
01551 if (wpa_debug_level != old_level)
01552 wpas_notify_debug_level_changed(global);
01553 if (wpa_debug_timestamp != old_timestamp)
01554 wpas_notify_debug_timestamp_changed(global);
01555 if (wpa_debug_show_keys != old_show_keys)
01556 wpas_notify_debug_show_keys_changed(global);
01557
01558 return 0;
01559 }
01560
01561
01567 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
01568 {
01569 struct wpa_ssid *entry;
01570 u8 ssid[MAX_SSID_LEN];
01571 int res;
01572 size_t ssid_len;
01573 u8 bssid[ETH_ALEN];
01574 int wired;
01575
01576 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) {
01577 if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) {
01578 wpa_printf(MSG_WARNING, "Could not read SSID from "
01579 "MLME.");
01580 return NULL;
01581 }
01582 } else {
01583 res = wpa_drv_get_ssid(wpa_s, ssid);
01584 if (res < 0) {
01585 wpa_printf(MSG_WARNING, "Could not read SSID from "
01586 "driver.");
01587 return NULL;
01588 }
01589 ssid_len = res;
01590 }
01591
01592 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
01593 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
01594 else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
01595 wpa_printf(MSG_WARNING, "Could not read BSSID from driver.");
01596 return NULL;
01597 }
01598
01599 wired = wpa_s->conf->ap_scan == 0 &&
01600 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED);
01601
01602 entry = wpa_s->conf->ssid;
01603 while (entry) {
01604 if (!entry->disabled &&
01605 ((ssid_len == entry->ssid_len &&
01606 os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
01607 (!entry->bssid_set ||
01608 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
01609 return entry;
01610 #ifdef CONFIG_WPS
01611 if (!entry->disabled &&
01612 (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
01613 (entry->ssid == NULL || entry->ssid_len == 0) &&
01614 (!entry->bssid_set ||
01615 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
01616 return entry;
01617 #endif
01618 entry = entry->next;
01619 }
01620
01621 return NULL;
01622 }
01623
01624
01625 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
01626 const char *name)
01627 {
01628 int i;
01629 size_t len;
01630 const char *pos;
01631
01632 if (wpa_s == NULL)
01633 return -1;
01634
01635 if (wpa_drivers[0] == NULL) {
01636 wpa_printf(MSG_ERROR, "No driver interfaces build into "
01637 "wpa_supplicant.");
01638 return -1;
01639 }
01640
01641 if (name == NULL) {
01642
01643 wpa_s->driver = wpa_drivers[0];
01644 wpa_s->global_drv_priv = wpa_s->global->drv_priv[0];
01645 return 0;
01646 }
01647
01648 pos = os_strchr(name, ',');
01649 if (pos)
01650 len = pos - name;
01651 else
01652 len = os_strlen(name);
01653 for (i = 0; wpa_drivers[i]; i++) {
01654 if (os_strlen(wpa_drivers[i]->name) == len &&
01655 os_strncmp(name, wpa_drivers[i]->name, len) ==
01656 0) {
01657 wpa_s->driver = wpa_drivers[i];
01658 wpa_s->global_drv_priv = wpa_s->global->drv_priv[i];
01659 return 0;
01660 }
01661 }
01662
01663 wpa_printf(MSG_ERROR, "Unsupported driver '%s'.", name);
01664 return -1;
01665 }
01666
01667
01682 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
01683 const u8 *buf, size_t len)
01684 {
01685 struct wpa_supplicant *wpa_s = ctx;
01686
01687 wpa_printf(MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
01688 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
01689
01690 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
01691
01692
01693
01694
01695
01696
01697
01698
01699 wpa_printf(MSG_DEBUG, "Not associated - Delay processing of "
01700 "received EAPOL frame");
01701 wpabuf_free(wpa_s->pending_eapol_rx);
01702 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len);
01703 if (wpa_s->pending_eapol_rx) {
01704 os_get_time(&wpa_s->pending_eapol_rx_time);
01705 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr,
01706 ETH_ALEN);
01707 }
01708 return;
01709 }
01710
01711 #ifdef CONFIG_AP
01712 if (wpa_s->ap_iface) {
01713 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len);
01714 return;
01715 }
01716 #endif
01717
01718 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
01719 wpa_printf(MSG_DEBUG, "Ignored received EAPOL frame since "
01720 "no key management is configured");
01721 return;
01722 }
01723
01724 if (wpa_s->eapol_received == 0 &&
01725 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) ||
01726 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
01727 wpa_s->wpa_state != WPA_COMPLETED) &&
01728 (wpa_s->current_ssid == NULL ||
01729 wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) {
01730
01731 wpa_supplicant_req_auth_timeout(
01732 wpa_s,
01733 (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
01734 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA ||
01735 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ?
01736 70 : 10, 0);
01737 }
01738 wpa_s->eapol_received++;
01739
01740 if (wpa_s->countermeasures) {
01741 wpa_printf(MSG_INFO, "WPA: Countermeasures - dropped EAPOL "
01742 "packet");
01743 return;
01744 }
01745
01746 #ifdef CONFIG_IBSS_RSN
01747 if (wpa_s->current_ssid &&
01748 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) {
01749 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len);
01750 return;
01751 }
01752 #endif
01753
01754
01755
01756
01757
01758
01759
01760 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
01761 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
01762 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
01763 return;
01764 wpa_drv_poll(wpa_s);
01765 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
01766 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
01767 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
01768
01769
01770
01771
01772
01773
01774 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
01775 }
01776 }
01777
01778
01788 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
01789 {
01790 static int interface_count = 0;
01791
01792 if (wpa_s->driver->send_eapol) {
01793 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
01794 if (addr)
01795 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
01796 } else {
01797 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
01798 wpa_drv_get_mac_addr(wpa_s),
01799 ETH_P_EAPOL,
01800 wpa_supplicant_rx_eapol, wpa_s, 0);
01801 if (wpa_s->l2 == NULL)
01802 return -1;
01803 }
01804
01805 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
01806 wpa_printf(MSG_ERROR, "Failed to get own L2 address");
01807 return -1;
01808 }
01809
01810 wpa_printf(MSG_DEBUG, "Own MAC address: " MACSTR,
01811 MAC2STR(wpa_s->own_addr));
01812
01813 if (wpa_s->bridge_ifname[0]) {
01814 wpa_printf(MSG_DEBUG, "Receiving packets from bridge interface"
01815 " '%s'", wpa_s->bridge_ifname);
01816 wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname,
01817 wpa_s->own_addr,
01818 ETH_P_EAPOL,
01819 wpa_supplicant_rx_eapol, wpa_s,
01820 0);
01821 if (wpa_s->l2_br == NULL) {
01822 wpa_printf(MSG_ERROR, "Failed to open l2_packet "
01823 "connection for the bridge interface '%s'",
01824 wpa_s->bridge_ifname);
01825 return -1;
01826 }
01827 }
01828
01829 wpa_clear_keys(wpa_s, NULL);
01830
01831
01832
01833 wpa_drv_set_countermeasures(wpa_s, 0);
01834
01835 wpa_printf(MSG_DEBUG, "RSN: flushing PMKID list in the driver");
01836 wpa_drv_flush_pmkid(wpa_s);
01837
01838 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
01839 if (wpa_supplicant_enabled_networks(wpa_s->conf)) {
01840 wpa_supplicant_req_scan(wpa_s, interface_count, 100000);
01841 interface_count++;
01842 } else
01843 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
01844
01845 return 0;
01846 }
01847
01848
01849 static int wpa_supplicant_daemon(const char *pid_file)
01850 {
01851 wpa_printf(MSG_DEBUG, "Daemonize..");
01852 return os_daemonize(pid_file);
01853 }
01854
01855
01856 static struct wpa_supplicant * wpa_supplicant_alloc(void)
01857 {
01858 struct wpa_supplicant *wpa_s;
01859
01860 wpa_s = os_zalloc(sizeof(*wpa_s));
01861 if (wpa_s == NULL)
01862 return NULL;
01863 wpa_s->scan_req = 1;
01864 wpa_s->new_connection = 1;
01865
01866 return wpa_s;
01867 }
01868
01869
01870 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
01871 struct wpa_interface *iface)
01872 {
01873 const char *ifname, *driver;
01874 struct wpa_driver_capa capa;
01875
01876 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
01877 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
01878 iface->confname ? iface->confname : "N/A",
01879 iface->driver ? iface->driver : "default",
01880 iface->ctrl_interface ? iface->ctrl_interface : "N/A",
01881 iface->bridge_ifname ? iface->bridge_ifname : "N/A");
01882
01883 if (iface->confname) {
01884 #ifdef CONFIG_BACKEND_FILE
01885 wpa_s->confname = os_rel2abs_path(iface->confname);
01886 if (wpa_s->confname == NULL) {
01887 wpa_printf(MSG_ERROR, "Failed to get absolute path "
01888 "for configuration file '%s'.",
01889 iface->confname);
01890 return -1;
01891 }
01892 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
01893 iface->confname, wpa_s->confname);
01894 #else
01895 wpa_s->confname = os_strdup(iface->confname);
01896 #endif
01897 wpa_s->conf = wpa_config_read(wpa_s->confname);
01898 if (wpa_s->conf == NULL) {
01899 wpa_printf(MSG_ERROR, "Failed to read or parse "
01900 "configuration '%s'.", wpa_s->confname);
01901 return -1;
01902 }
01903
01904
01905
01906
01907
01908 if (iface->ctrl_interface) {
01909 os_free(wpa_s->conf->ctrl_interface);
01910 wpa_s->conf->ctrl_interface =
01911 os_strdup(iface->ctrl_interface);
01912 }
01913
01914 if (iface->driver_param) {
01915 os_free(wpa_s->conf->driver_param);
01916 wpa_s->conf->driver_param =
01917 os_strdup(iface->driver_param);
01918 }
01919 } else
01920 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
01921 iface->driver_param);
01922
01923 if (wpa_s->conf == NULL) {
01924 wpa_printf(MSG_ERROR, "\nNo configuration found.");
01925 return -1;
01926 }
01927
01928 if (iface->ifname == NULL) {
01929 wpa_printf(MSG_ERROR, "\nInterface name is required.");
01930 return -1;
01931 }
01932 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
01933 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
01934 iface->ifname);
01935 return -1;
01936 }
01937 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
01938
01939 if (iface->bridge_ifname) {
01940 if (os_strlen(iface->bridge_ifname) >=
01941 sizeof(wpa_s->bridge_ifname)) {
01942 wpa_printf(MSG_ERROR, "\nToo long bridge interface "
01943 "name '%s'.", iface->bridge_ifname);
01944 return -1;
01945 }
01946 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
01947 sizeof(wpa_s->bridge_ifname));
01948 }
01949
01950
01951 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
01952 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
01953
01954
01955
01956
01957
01958 driver = iface->driver;
01959 next_driver:
01960 if (wpa_supplicant_set_driver(wpa_s, driver) < 0)
01961 return -1;
01962
01963 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
01964 if (wpa_s->drv_priv == NULL) {
01965 const char *pos;
01966 pos = driver ? os_strchr(driver, ',') : NULL;
01967 if (pos) {
01968 wpa_printf(MSG_DEBUG, "Failed to initialize driver "
01969 "interface - try next driver wrapper");
01970 driver = pos + 1;
01971 goto next_driver;
01972 }
01973 wpa_printf(MSG_ERROR, "Failed to initialize driver interface");
01974 return -1;
01975 }
01976 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
01977 wpa_printf(MSG_ERROR, "Driver interface rejected "
01978 "driver_param '%s'", wpa_s->conf->driver_param);
01979 return -1;
01980 }
01981
01982 ifname = wpa_drv_get_ifname(wpa_s);
01983 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
01984 wpa_printf(MSG_DEBUG, "Driver interface replaced interface "
01985 "name with '%s'", ifname);
01986 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
01987 }
01988
01989 if (wpa_supplicant_init_wpa(wpa_s) < 0)
01990 return -1;
01991
01992 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
01993 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
01994 NULL);
01995 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
01996
01997 if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
01998 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
01999 wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
02000 wpa_printf(MSG_ERROR, "Invalid WPA parameter value for "
02001 "dot11RSNAConfigPMKLifetime");
02002 return -1;
02003 }
02004
02005 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
02006 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
02007 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
02008 wpa_printf(MSG_ERROR, "Invalid WPA parameter value for "
02009 "dot11RSNAConfigPMKReauthThreshold");
02010 return -1;
02011 }
02012
02013 if (wpa_s->conf->dot11RSNAConfigSATimeout &&
02014 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
02015 wpa_s->conf->dot11RSNAConfigSATimeout)) {
02016 wpa_printf(MSG_ERROR, "Invalid WPA parameter value for "
02017 "dot11RSNAConfigSATimeout");
02018 return -1;
02019 }
02020
02021 if (wpa_drv_get_capa(wpa_s, &capa) == 0) {
02022 wpa_s->drv_flags = capa.flags;
02023 if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) {
02024 if (ieee80211_sta_init(wpa_s))
02025 return -1;
02026 }
02027 wpa_s->max_scan_ssids = capa.max_scan_ssids;
02028 wpa_s->max_remain_on_chan = capa.max_remain_on_chan;
02029 }
02030 if (wpa_s->max_remain_on_chan == 0)
02031 wpa_s->max_remain_on_chan = 1000;
02032
02033 if (wpa_supplicant_driver_init(wpa_s) < 0)
02034 return -1;
02035
02036 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] &&
02037 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) {
02038 wpa_printf(MSG_DEBUG, "Failed to set country");
02039 return -1;
02040 }
02041
02042 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
02043
02044 if (wpas_wps_init(wpa_s))
02045 return -1;
02046
02047 if (wpa_supplicant_init_eapol(wpa_s) < 0)
02048 return -1;
02049 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
02050
02051 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
02052 if (wpa_s->ctrl_iface == NULL) {
02053 wpa_printf(MSG_ERROR,
02054 "Failed to initialize control interface '%s'.\n"
02055 "You may have another wpa_supplicant process "
02056 "already running or the file was\n"
02057 "left by an unclean termination of wpa_supplicant "
02058 "in which case you will need\n"
02059 "to manually remove this file before starting "
02060 "wpa_supplicant again.\n",
02061 wpa_s->conf->ctrl_interface);
02062 return -1;
02063 }
02064
02065 #ifdef CONFIG_IBSS_RSN
02066 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
02067 if (!wpa_s->ibss_rsn) {
02068 wpa_printf(MSG_DEBUG, "Failed to init IBSS RSN");
02069 return -1;
02070 }
02071 #endif
02072
02073 if (wpa_bss_init(wpa_s) < 0)
02074 return -1;
02075
02076 return 0;
02077 }
02078
02079
02080 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
02081 int notify)
02082 {
02083 if (wpa_s->drv_priv) {
02084 wpa_supplicant_deauthenticate(wpa_s,
02085 WLAN_REASON_DEAUTH_LEAVING);
02086
02087 wpa_drv_set_countermeasures(wpa_s, 0);
02088 wpa_clear_keys(wpa_s, NULL);
02089 }
02090
02091 wpa_supplicant_cleanup(wpa_s);
02092
02093 if (notify)
02094 wpas_notify_iface_removed(wpa_s);
02095
02096 if (wpa_s->drv_priv)
02097 wpa_drv_deinit(wpa_s);
02098 }
02099
02100
02113 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
02114 struct wpa_interface *iface)
02115 {
02116 struct wpa_supplicant *wpa_s;
02117 struct wpa_interface t_iface;
02118 struct wpa_ssid *ssid;
02119
02120 if (global == NULL || iface == NULL)
02121 return NULL;
02122
02123 wpa_s = wpa_supplicant_alloc();
02124 if (wpa_s == NULL)
02125 return NULL;
02126
02127 wpa_s->global = global;
02128
02129 t_iface = *iface;
02130 if (global->params.override_driver) {
02131 wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
02132 "('%s' -> '%s')",
02133 iface->driver, global->params.override_driver);
02134 t_iface.driver = global->params.override_driver;
02135 }
02136 if (global->params.override_ctrl_interface) {
02137 wpa_printf(MSG_DEBUG, "Override interface parameter: "
02138 "ctrl_interface ('%s' -> '%s')",
02139 iface->ctrl_interface,
02140 global->params.override_ctrl_interface);
02141 t_iface.ctrl_interface =
02142 global->params.override_ctrl_interface;
02143 }
02144 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
02145 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
02146 iface->ifname);
02147 wpa_supplicant_deinit_iface(wpa_s, 0);
02148 os_free(wpa_s);
02149 return NULL;
02150 }
02151
02152
02153 if (wpas_notify_iface_added(wpa_s)) {
02154 wpa_supplicant_deinit_iface(wpa_s, 1);
02155 os_free(wpa_s);
02156 return NULL;
02157 }
02158
02159 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
02160 wpas_notify_network_added(wpa_s, ssid);
02161
02162 wpa_s->next = global->ifaces;
02163 global->ifaces = wpa_s;
02164
02165 wpa_printf(MSG_DEBUG, "Added interface %s", wpa_s->ifname);
02166
02167 return wpa_s;
02168 }
02169
02170
02182 int wpa_supplicant_remove_iface(struct wpa_global *global,
02183 struct wpa_supplicant *wpa_s)
02184 {
02185 struct wpa_supplicant *prev;
02186
02187
02188 prev = global->ifaces;
02189 if (prev == wpa_s) {
02190 global->ifaces = wpa_s->next;
02191 } else {
02192 while (prev && prev->next != wpa_s)
02193 prev = prev->next;
02194 if (prev == NULL)
02195 return -1;
02196 prev->next = wpa_s->next;
02197 }
02198
02199 wpa_printf(MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
02200
02201 wpa_supplicant_deinit_iface(wpa_s, 1);
02202 os_free(wpa_s);
02203
02204 return 0;
02205 }
02206
02207
02214 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
02215 const char *ifname)
02216 {
02217 struct wpa_supplicant *wpa_s;
02218
02219 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
02220 if (os_strcmp(wpa_s->ifname, ifname) == 0)
02221 return wpa_s;
02222 }
02223 return NULL;
02224 }
02225
02226
02236 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
02237 {
02238 struct wpa_global *global;
02239 int ret, i;
02240
02241 if (params == NULL)
02242 return NULL;
02243
02244 wpa_debug_open_file(params->wpa_debug_file_path);
02245 if (params->wpa_debug_syslog)
02246 wpa_debug_open_syslog();
02247
02248 ret = eap_register_methods();
02249 if (ret) {
02250 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
02251 if (ret == -2)
02252 wpa_printf(MSG_ERROR, "Two or more EAP methods used "
02253 "the same EAP type.");
02254 return NULL;
02255 }
02256
02257 global = os_zalloc(sizeof(*global));
02258 if (global == NULL)
02259 return NULL;
02260 global->params.daemonize = params->daemonize;
02261 global->params.wait_for_monitor = params->wait_for_monitor;
02262 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
02263 if (params->pid_file)
02264 global->params.pid_file = os_strdup(params->pid_file);
02265 if (params->ctrl_interface)
02266 global->params.ctrl_interface =
02267 os_strdup(params->ctrl_interface);
02268 if (params->override_driver)
02269 global->params.override_driver =
02270 os_strdup(params->override_driver);
02271 if (params->override_ctrl_interface)
02272 global->params.override_ctrl_interface =
02273 os_strdup(params->override_ctrl_interface);
02274 wpa_debug_level = global->params.wpa_debug_level =
02275 params->wpa_debug_level;
02276 wpa_debug_show_keys = global->params.wpa_debug_show_keys =
02277 params->wpa_debug_show_keys;
02278 wpa_debug_timestamp = global->params.wpa_debug_timestamp =
02279 params->wpa_debug_timestamp;
02280
02281 if (eloop_init()) {
02282 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
02283 wpa_supplicant_deinit(global);
02284 return NULL;
02285 }
02286
02287 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
02288 if (global->ctrl_iface == NULL) {
02289 wpa_supplicant_deinit(global);
02290 return NULL;
02291 }
02292
02293 if (wpas_notify_supplicant_initialized(global)) {
02294 wpa_supplicant_deinit(global);
02295 return NULL;
02296 }
02297
02298 for (i = 0; wpa_drivers[i]; i++)
02299 global->drv_count++;
02300 if (global->drv_count == 0) {
02301 wpa_printf(MSG_ERROR, "No drivers enabled");
02302 wpa_supplicant_deinit(global);
02303 return NULL;
02304 }
02305 global->drv_priv = os_zalloc(global->drv_count * sizeof(void *));
02306 if (global->drv_priv == NULL) {
02307 wpa_supplicant_deinit(global);
02308 return NULL;
02309 }
02310 for (i = 0; wpa_drivers[i]; i++) {
02311 if (!wpa_drivers[i]->global_init)
02312 continue;
02313 global->drv_priv[i] = wpa_drivers[i]->global_init();
02314 if (global->drv_priv[i] == NULL) {
02315 wpa_printf(MSG_ERROR, "Failed to initialize driver "
02316 "'%s'", wpa_drivers[i]->name);
02317 wpa_supplicant_deinit(global);
02318 return NULL;
02319 }
02320 }
02321
02322 return global;
02323 }
02324
02325
02335 int wpa_supplicant_run(struct wpa_global *global)
02336 {
02337 struct wpa_supplicant *wpa_s;
02338
02339 if (global->params.daemonize &&
02340 wpa_supplicant_daemon(global->params.pid_file))
02341 return -1;
02342
02343 if (global->params.wait_for_monitor) {
02344 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
02345 if (wpa_s->ctrl_iface)
02346 wpa_supplicant_ctrl_iface_wait(
02347 wpa_s->ctrl_iface);
02348 }
02349
02350 eloop_register_signal_terminate(wpa_supplicant_terminate, global);
02351 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
02352
02353 eloop_run();
02354
02355 return 0;
02356 }
02357
02358
02366 void wpa_supplicant_deinit(struct wpa_global *global)
02367 {
02368 int i;
02369
02370 if (global == NULL)
02371 return;
02372
02373 while (global->ifaces)
02374 wpa_supplicant_remove_iface(global, global->ifaces);
02375
02376 if (global->ctrl_iface)
02377 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
02378
02379 wpas_notify_supplicant_deinitialized(global);
02380
02381 eap_peer_unregister_methods();
02382 #ifdef CONFIG_AP
02383 eap_server_unregister_methods();
02384 #endif
02385
02386 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) {
02387 if (!global->drv_priv[i])
02388 continue;
02389 wpa_drivers[i]->global_deinit(global->drv_priv[i]);
02390 }
02391 os_free(global->drv_priv);
02392
02393 eloop_destroy();
02394
02395 if (global->params.pid_file) {
02396 os_daemonize_terminate(global->params.pid_file);
02397 os_free(global->params.pid_file);
02398 }
02399 os_free(global->params.ctrl_interface);
02400 os_free(global->params.override_driver);
02401 os_free(global->params.override_ctrl_interface);
02402
02403 os_free(global);
02404 wpa_debug_close_syslog();
02405 wpa_debug_close_file();
02406 }