Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * WPA Supplicant |
| 3 | * Copyright (c) 2003-2011, 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 "crypto/random.h" |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 23 | #include "crypto/sha1.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 24 | #include "eapol_supp/eapol_supp_sm.h" |
| 25 | #include "eap_peer/eap.h" |
| 26 | #include "eap_server/eap_methods.h" |
| 27 | #include "rsn_supp/wpa.h" |
| 28 | #include "eloop.h" |
| 29 | #include "config.h" |
| 30 | #include "l2_packet/l2_packet.h" |
| 31 | #include "wpa_supplicant_i.h" |
| 32 | #include "driver_i.h" |
| 33 | #include "ctrl_iface.h" |
| 34 | #include "pcsc_funcs.h" |
| 35 | #include "common/version.h" |
| 36 | #include "rsn_supp/preauth.h" |
| 37 | #include "rsn_supp/pmksa_cache.h" |
| 38 | #include "common/wpa_ctrl.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 39 | #include "common/ieee802_11_defs.h" |
| 40 | #include "p2p/p2p.h" |
| 41 | #include "blacklist.h" |
| 42 | #include "wpas_glue.h" |
| 43 | #include "wps_supplicant.h" |
| 44 | #include "ibss_rsn.h" |
| 45 | #include "sme.h" |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 46 | #include "gas_query.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 47 | #include "ap.h" |
| 48 | #include "p2p_supplicant.h" |
| 49 | #include "notify.h" |
| 50 | #include "bgscan.h" |
| 51 | #include "bss.h" |
| 52 | #include "scan.h" |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 53 | #include "offchannel.h" |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 54 | |
| 55 | const char *wpa_supplicant_version = |
| 56 | "wpa_supplicant v" VERSION_STR "\n" |
| 57 | "Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> and contributors"; |
| 58 | |
| 59 | const char *wpa_supplicant_license = |
| 60 | "This program is free software. You can distribute it and/or modify it\n" |
| 61 | "under the terms of the GNU General Public License version 2.\n" |
| 62 | "\n" |
| 63 | "Alternatively, this software may be distributed under the terms of the\n" |
| 64 | "BSD license. See README and COPYING for more details.\n" |
| 65 | #ifdef EAP_TLS_OPENSSL |
| 66 | "\nThis product includes software developed by the OpenSSL Project\n" |
| 67 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" |
| 68 | #endif /* EAP_TLS_OPENSSL */ |
| 69 | ; |
| 70 | |
| 71 | #ifndef CONFIG_NO_STDOUT_DEBUG |
| 72 | /* Long text divided into parts in order to fit in C89 strings size limits. */ |
| 73 | const char *wpa_supplicant_full_license1 = |
| 74 | "This program is free software; you can redistribute it and/or modify\n" |
| 75 | "it under the terms of the GNU General Public License version 2 as\n" |
| 76 | "published by the Free Software Foundation.\n" |
| 77 | "\n" |
| 78 | "This program is distributed in the hope that it will be useful,\n" |
| 79 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" |
| 80 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" |
| 81 | "GNU General Public License for more details.\n" |
| 82 | "\n"; |
| 83 | const char *wpa_supplicant_full_license2 = |
| 84 | "You should have received a copy of the GNU General Public License\n" |
| 85 | "along with this program; if not, write to the Free Software\n" |
| 86 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" |
| 87 | "\n" |
| 88 | "Alternatively, this software may be distributed under the terms of the\n" |
| 89 | "BSD license.\n" |
| 90 | "\n" |
| 91 | "Redistribution and use in source and binary forms, with or without\n" |
| 92 | "modification, are permitted provided that the following conditions are\n" |
| 93 | "met:\n" |
| 94 | "\n"; |
| 95 | const char *wpa_supplicant_full_license3 = |
| 96 | "1. Redistributions of source code must retain the above copyright\n" |
| 97 | " notice, this list of conditions and the following disclaimer.\n" |
| 98 | "\n" |
| 99 | "2. Redistributions in binary form must reproduce the above copyright\n" |
| 100 | " notice, this list of conditions and the following disclaimer in the\n" |
| 101 | " documentation and/or other materials provided with the distribution.\n" |
| 102 | "\n"; |
| 103 | const char *wpa_supplicant_full_license4 = |
| 104 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" |
| 105 | " names of its contributors may be used to endorse or promote products\n" |
| 106 | " derived from this software without specific prior written permission.\n" |
| 107 | "\n" |
| 108 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" |
| 109 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" |
| 110 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" |
| 111 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; |
| 112 | const char *wpa_supplicant_full_license5 = |
| 113 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" |
| 114 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" |
| 115 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" |
| 116 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" |
| 117 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" |
| 118 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" |
| 119 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" |
| 120 | "\n"; |
| 121 | #endif /* CONFIG_NO_STDOUT_DEBUG */ |
| 122 | |
| 123 | extern int wpa_debug_level; |
| 124 | extern int wpa_debug_show_keys; |
| 125 | extern int wpa_debug_timestamp; |
| 126 | extern struct wpa_driver_ops *wpa_drivers[]; |
| 127 | |
| 128 | /* Configure default/group WEP keys for static WEP */ |
| 129 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
| 130 | { |
| 131 | int i, set = 0; |
| 132 | |
| 133 | for (i = 0; i < NUM_WEP_KEYS; i++) { |
| 134 | if (ssid->wep_key_len[i] == 0) |
| 135 | continue; |
| 136 | |
| 137 | set = 1; |
| 138 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, |
| 139 | i, i == ssid->wep_tx_keyidx, NULL, 0, |
| 140 | ssid->wep_key[i], ssid->wep_key_len[i]); |
| 141 | } |
| 142 | |
| 143 | return set; |
| 144 | } |
| 145 | |
| 146 | |
| 147 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, |
| 148 | struct wpa_ssid *ssid) |
| 149 | { |
| 150 | u8 key[32]; |
| 151 | size_t keylen; |
| 152 | enum wpa_alg alg; |
| 153 | u8 seq[6] = { 0 }; |
| 154 | |
| 155 | /* IBSS/WPA-None uses only one key (Group) for both receiving and |
| 156 | * sending unicast and multicast packets. */ |
| 157 | |
| 158 | if (ssid->mode != WPAS_MODE_IBSS) { |
| 159 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " |
| 160 | "IBSS/ad-hoc) for WPA-None", ssid->mode); |
| 161 | return -1; |
| 162 | } |
| 163 | |
| 164 | if (!ssid->psk_set) { |
| 165 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " |
| 166 | "WPA-None"); |
| 167 | return -1; |
| 168 | } |
| 169 | |
| 170 | switch (wpa_s->group_cipher) { |
| 171 | case WPA_CIPHER_CCMP: |
| 172 | os_memcpy(key, ssid->psk, 16); |
| 173 | keylen = 16; |
| 174 | alg = WPA_ALG_CCMP; |
| 175 | break; |
| 176 | case WPA_CIPHER_TKIP: |
| 177 | /* WPA-None uses the same Michael MIC key for both TX and RX */ |
| 178 | os_memcpy(key, ssid->psk, 16 + 8); |
| 179 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); |
| 180 | keylen = 32; |
| 181 | alg = WPA_ALG_TKIP; |
| 182 | break; |
| 183 | default: |
| 184 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " |
| 185 | "WPA-None", wpa_s->group_cipher); |
| 186 | return -1; |
| 187 | } |
| 188 | |
| 189 | /* TODO: should actually remember the previously used seq#, both for TX |
| 190 | * and RX from each STA.. */ |
| 191 | |
| 192 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); |
| 193 | } |
| 194 | |
| 195 | |
| 196 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) |
| 197 | { |
| 198 | struct wpa_supplicant *wpa_s = eloop_ctx; |
| 199 | const u8 *bssid = wpa_s->bssid; |
| 200 | if (is_zero_ether_addr(bssid)) |
| 201 | bssid = wpa_s->pending_bssid; |
| 202 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", |
| 203 | MAC2STR(bssid)); |
| 204 | wpa_blacklist_add(wpa_s, bssid); |
| 205 | wpa_sm_notify_disassoc(wpa_s->wpa); |
| 206 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
| 207 | wpa_s->reassociate = 1; |
| 208 | |
| 209 | /* |
| 210 | * If we timed out, the AP or the local radio may be busy. |
| 211 | * So, wait a second until scanning again. |
| 212 | */ |
| 213 | wpa_supplicant_req_scan(wpa_s, 1, 0); |
| 214 | } |
| 215 | |
| 216 | |
| 217 | /** |
| 218 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication |
| 219 | * @wpa_s: Pointer to wpa_supplicant data |
| 220 | * @sec: Number of seconds after which to time out authentication |
| 221 | * @usec: Number of microseconds after which to time out authentication |
| 222 | * |
| 223 | * This function is used to schedule a timeout for the current authentication |
| 224 | * attempt. |
| 225 | */ |
| 226 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, |
| 227 | int sec, int usec) |
| 228 | { |
| 229 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
| 230 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
| 231 | return; |
| 232 | |
| 233 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " |
| 234 | "%d usec", sec, usec); |
| 235 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
| 236 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); |
| 237 | } |
| 238 | |
| 239 | |
| 240 | /** |
| 241 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout |
| 242 | * @wpa_s: Pointer to wpa_supplicant data |
| 243 | * |
| 244 | * This function is used to cancel authentication timeout scheduled with |
| 245 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has |
| 246 | * been completed. |
| 247 | */ |
| 248 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) |
| 249 | { |
| 250 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); |
| 251 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
| 252 | wpa_blacklist_del(wpa_s, wpa_s->bssid); |
| 253 | } |
| 254 | |
| 255 | |
| 256 | /** |
| 257 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine |
| 258 | * @wpa_s: Pointer to wpa_supplicant data |
| 259 | * |
| 260 | * This function is used to configure EAPOL state machine based on the selected |
| 261 | * authentication mode. |
| 262 | */ |
| 263 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) |
| 264 | { |
| 265 | #ifdef IEEE8021X_EAPOL |
| 266 | struct eapol_config eapol_conf; |
| 267 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
| 268 | |
| 269 | #ifdef CONFIG_IBSS_RSN |
| 270 | if (ssid->mode == WPAS_MODE_IBSS && |
| 271 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
| 272 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { |
| 273 | /* |
| 274 | * RSN IBSS authentication is per-STA and we can disable the |
| 275 | * per-BSSID EAPOL authentication. |
| 276 | */ |
| 277 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); |
| 278 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); |
| 279 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); |
| 280 | return; |
| 281 | } |
| 282 | #endif /* CONFIG_IBSS_RSN */ |
| 283 | |
| 284 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
| 285 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); |
| 286 | |
| 287 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
| 288 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) |
| 289 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); |
| 290 | else |
| 291 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); |
| 292 | |
| 293 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); |
| 294 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { |
| 295 | eapol_conf.accept_802_1x_keys = 1; |
| 296 | eapol_conf.required_keys = 0; |
| 297 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { |
| 298 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; |
| 299 | } |
| 300 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { |
| 301 | eapol_conf.required_keys |= |
| 302 | EAPOL_REQUIRE_KEY_BROADCAST; |
| 303 | } |
| 304 | |
| 305 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
| 306 | eapol_conf.required_keys = 0; |
| 307 | } |
| 308 | if (wpa_s->conf) |
| 309 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; |
| 310 | eapol_conf.workaround = ssid->eap_workaround; |
| 311 | eapol_conf.eap_disabled = |
| 312 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && |
| 313 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
| 314 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; |
| 315 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
| 316 | #endif /* IEEE8021X_EAPOL */ |
| 317 | } |
| 318 | |
| 319 | |
| 320 | /** |
| 321 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode |
| 322 | * @wpa_s: Pointer to wpa_supplicant data |
| 323 | * @ssid: Configuration data for the network |
| 324 | * |
| 325 | * This function is used to configure WPA state machine and related parameters |
| 326 | * to a mode where WPA is not enabled. This is called as part of the |
| 327 | * authentication configuration when the selected network does not use WPA. |
| 328 | */ |
| 329 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, |
| 330 | struct wpa_ssid *ssid) |
| 331 | { |
| 332 | int i; |
| 333 | |
| 334 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
| 335 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; |
| 336 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) |
| 337 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
| 338 | else |
| 339 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; |
| 340 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); |
| 341 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); |
| 342 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); |
| 343 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; |
| 344 | wpa_s->group_cipher = WPA_CIPHER_NONE; |
| 345 | wpa_s->mgmt_group_cipher = 0; |
| 346 | |
| 347 | for (i = 0; i < NUM_WEP_KEYS; i++) { |
| 348 | if (ssid->wep_key_len[i] > 5) { |
| 349 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; |
| 350 | wpa_s->group_cipher = WPA_CIPHER_WEP104; |
| 351 | break; |
| 352 | } else if (ssid->wep_key_len[i] > 0) { |
| 353 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; |
| 354 | wpa_s->group_cipher = WPA_CIPHER_WEP40; |
| 355 | break; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); |
| 360 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); |
| 361 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, |
| 362 | wpa_s->pairwise_cipher); |
| 363 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); |
| 364 | #ifdef CONFIG_IEEE80211W |
| 365 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, |
| 366 | wpa_s->mgmt_group_cipher); |
| 367 | #endif /* CONFIG_IEEE80211W */ |
| 368 | |
| 369 | pmksa_cache_clear_current(wpa_s->wpa); |
| 370 | } |
| 371 | |
| 372 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 373 | static void free_hw_features(struct wpa_supplicant *wpa_s) |
| 374 | { |
| 375 | int i; |
| 376 | if (wpa_s->hw.modes == NULL) |
| 377 | return; |
| 378 | |
| 379 | for (i = 0; i < wpa_s->hw.num_modes; i++) { |
| 380 | os_free(wpa_s->hw.modes[i].channels); |
| 381 | os_free(wpa_s->hw.modes[i].rates); |
| 382 | } |
| 383 | |
| 384 | os_free(wpa_s->hw.modes); |
| 385 | wpa_s->hw.modes = NULL; |
| 386 | } |
| 387 | |
| 388 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 389 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) |
| 390 | { |
| 391 | bgscan_deinit(wpa_s); |
| 392 | scard_deinit(wpa_s->scard); |
| 393 | wpa_s->scard = NULL; |
| 394 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); |
| 395 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); |
| 396 | l2_packet_deinit(wpa_s->l2); |
| 397 | wpa_s->l2 = NULL; |
| 398 | if (wpa_s->l2_br) { |
| 399 | l2_packet_deinit(wpa_s->l2_br); |
| 400 | wpa_s->l2_br = NULL; |
| 401 | } |
| 402 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 403 | if (wpa_s->conf != NULL) { |
| 404 | struct wpa_ssid *ssid; |
| 405 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
| 406 | wpas_notify_network_removed(wpa_s, ssid); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 407 | } |
| 408 | |
| 409 | os_free(wpa_s->confname); |
| 410 | wpa_s->confname = NULL; |
| 411 | |
| 412 | wpa_sm_set_eapol(wpa_s->wpa, NULL); |
| 413 | eapol_sm_deinit(wpa_s->eapol); |
| 414 | wpa_s->eapol = NULL; |
| 415 | |
| 416 | rsn_preauth_deinit(wpa_s->wpa); |
| 417 | |
| 418 | #ifdef CONFIG_TDLS |
| 419 | wpa_tdls_deinit(wpa_s->wpa); |
| 420 | #endif /* CONFIG_TDLS */ |
| 421 | |
| 422 | pmksa_candidate_free(wpa_s->wpa); |
| 423 | wpa_sm_deinit(wpa_s->wpa); |
| 424 | wpa_s->wpa = NULL; |
| 425 | wpa_blacklist_clear(wpa_s); |
| 426 | |
| 427 | wpa_bss_deinit(wpa_s); |
| 428 | |
| 429 | wpa_supplicant_cancel_scan(wpa_s); |
| 430 | wpa_supplicant_cancel_auth_timeout(wpa_s); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 431 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); |
| 432 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT |
| 433 | eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, |
| 434 | wpa_s, NULL); |
| 435 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 436 | |
| 437 | wpas_wps_deinit(wpa_s); |
| 438 | |
| 439 | wpabuf_free(wpa_s->pending_eapol_rx); |
| 440 | wpa_s->pending_eapol_rx = NULL; |
| 441 | |
| 442 | #ifdef CONFIG_IBSS_RSN |
| 443 | ibss_rsn_deinit(wpa_s->ibss_rsn); |
| 444 | wpa_s->ibss_rsn = NULL; |
| 445 | #endif /* CONFIG_IBSS_RSN */ |
| 446 | |
| 447 | sme_deinit(wpa_s); |
| 448 | |
| 449 | #ifdef CONFIG_AP |
| 450 | wpa_supplicant_ap_deinit(wpa_s); |
| 451 | #endif /* CONFIG_AP */ |
| 452 | |
| 453 | #ifdef CONFIG_P2P |
| 454 | wpas_p2p_deinit(wpa_s); |
| 455 | #endif /* CONFIG_P2P */ |
| 456 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 457 | #ifdef CONFIG_OFFCHANNEL |
| 458 | offchannel_deinit(wpa_s); |
| 459 | #endif /* CONFIG_OFFCHANNEL */ |
| 460 | |
| 461 | wpa_supplicant_cancel_sched_scan(wpa_s); |
| 462 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 463 | os_free(wpa_s->next_scan_freqs); |
| 464 | wpa_s->next_scan_freqs = NULL; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 465 | |
| 466 | gas_query_deinit(wpa_s->gas); |
| 467 | wpa_s->gas = NULL; |
| 468 | |
| 469 | free_hw_features(wpa_s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 470 | } |
| 471 | |
| 472 | |
| 473 | /** |
| 474 | * wpa_clear_keys - Clear keys configured for the driver |
| 475 | * @wpa_s: Pointer to wpa_supplicant data |
| 476 | * @addr: Previously used BSSID or %NULL if not available |
| 477 | * |
| 478 | * This function clears the encryption keys that has been previously configured |
| 479 | * for the driver. |
| 480 | */ |
| 481 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) |
| 482 | { |
| 483 | if (wpa_s->keys_cleared) { |
| 484 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have |
| 485 | * timing issues with keys being cleared just before new keys |
| 486 | * are set or just after association or something similar. This |
| 487 | * shows up in group key handshake failing often because of the |
| 488 | * client not receiving the first encrypted packets correctly. |
| 489 | * Skipping some of the extra key clearing steps seems to help |
| 490 | * in completing group key handshake more reliably. */ |
| 491 | wpa_dbg(wpa_s, MSG_DEBUG, "No keys have been configured - " |
| 492 | "skip key clearing"); |
| 493 | return; |
| 494 | } |
| 495 | |
| 496 | /* MLME-DELETEKEYS.request */ |
| 497 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 0, 0, NULL, 0, NULL, 0); |
| 498 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 1, 0, NULL, 0, NULL, 0); |
| 499 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 2, 0, NULL, 0, NULL, 0); |
| 500 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 3, 0, NULL, 0, NULL, 0); |
| 501 | #ifdef CONFIG_IEEE80211W |
| 502 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 4, 0, NULL, 0, NULL, 0); |
| 503 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 5, 0, NULL, 0, NULL, 0); |
| 504 | #endif /* CONFIG_IEEE80211W */ |
| 505 | if (addr) { |
| 506 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, |
| 507 | 0); |
| 508 | /* MLME-SETPROTECTION.request(None) */ |
| 509 | wpa_drv_mlme_setprotection( |
| 510 | wpa_s, addr, |
| 511 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, |
| 512 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); |
| 513 | } |
| 514 | wpa_s->keys_cleared = 1; |
| 515 | } |
| 516 | |
| 517 | |
| 518 | /** |
| 519 | * wpa_supplicant_state_txt - Get the connection state name as a text string |
| 520 | * @state: State (wpa_state; WPA_*) |
| 521 | * Returns: The state name as a printable text string |
| 522 | */ |
| 523 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
| 524 | { |
| 525 | switch (state) { |
| 526 | case WPA_DISCONNECTED: |
| 527 | return "DISCONNECTED"; |
| 528 | case WPA_INACTIVE: |
| 529 | return "INACTIVE"; |
| 530 | case WPA_INTERFACE_DISABLED: |
| 531 | return "INTERFACE_DISABLED"; |
| 532 | case WPA_SCANNING: |
| 533 | return "SCANNING"; |
| 534 | case WPA_AUTHENTICATING: |
| 535 | return "AUTHENTICATING"; |
| 536 | case WPA_ASSOCIATING: |
| 537 | return "ASSOCIATING"; |
| 538 | case WPA_ASSOCIATED: |
| 539 | return "ASSOCIATED"; |
| 540 | case WPA_4WAY_HANDSHAKE: |
| 541 | return "4WAY_HANDSHAKE"; |
| 542 | case WPA_GROUP_HANDSHAKE: |
| 543 | return "GROUP_HANDSHAKE"; |
| 544 | case WPA_COMPLETED: |
| 545 | return "COMPLETED"; |
| 546 | default: |
| 547 | return "UNKNOWN"; |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | |
| 552 | #ifdef CONFIG_BGSCAN |
| 553 | |
| 554 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) |
| 555 | { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 556 | if (wpas_driver_bss_selection(wpa_s)) |
| 557 | return; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 558 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) |
| 559 | return; |
| 560 | |
| 561 | bgscan_deinit(wpa_s); |
| 562 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { |
| 563 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { |
| 564 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
| 565 | "bgscan"); |
| 566 | /* |
| 567 | * Live without bgscan; it is only used as a roaming |
| 568 | * optimization, so the initial connection is not |
| 569 | * affected. |
| 570 | */ |
| 571 | } else |
| 572 | wpa_s->bgscan_ssid = wpa_s->current_ssid; |
| 573 | } else |
| 574 | wpa_s->bgscan_ssid = NULL; |
| 575 | } |
| 576 | |
| 577 | |
| 578 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) |
| 579 | { |
| 580 | if (wpa_s->bgscan_ssid != NULL) { |
| 581 | bgscan_deinit(wpa_s); |
| 582 | wpa_s->bgscan_ssid = NULL; |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | #endif /* CONFIG_BGSCAN */ |
| 587 | |
| 588 | |
| 589 | /** |
| 590 | * wpa_supplicant_set_state - Set current connection state |
| 591 | * @wpa_s: Pointer to wpa_supplicant data |
| 592 | * @state: The new connection state |
| 593 | * |
| 594 | * This function is called whenever the connection state changes, e.g., |
| 595 | * association is completed for WPA/WPA2 4-Way Handshake is started. |
| 596 | */ |
| 597 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
| 598 | enum wpa_states state) |
| 599 | { |
| 600 | enum wpa_states old_state = wpa_s->wpa_state; |
| 601 | |
| 602 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", |
| 603 | wpa_supplicant_state_txt(wpa_s->wpa_state), |
| 604 | wpa_supplicant_state_txt(state)); |
| 605 | |
| 606 | if (state != WPA_SCANNING) |
| 607 | wpa_supplicant_notify_scanning(wpa_s, 0); |
| 608 | |
| 609 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
| 610 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) |
| 611 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
| 612 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " |
| 613 | MACSTR " completed %s [id=%d id_str=%s]", |
| 614 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? |
| 615 | "(reauth)" : "(auth)", |
| 616 | ssid ? ssid->id : -1, |
| 617 | ssid && ssid->id_str ? ssid->id_str : ""); |
| 618 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ |
| 619 | wpa_s->new_connection = 0; |
| 620 | wpa_s->reassociated_connection = 1; |
| 621 | wpa_drv_set_operstate(wpa_s, 1); |
| 622 | #ifndef IEEE8021X_EAPOL |
| 623 | wpa_drv_set_supp_port(wpa_s, 1); |
| 624 | #endif /* IEEE8021X_EAPOL */ |
| 625 | wpa_s->after_wps = 0; |
| 626 | #ifdef CONFIG_P2P |
| 627 | wpas_p2p_completed(wpa_s); |
| 628 | #endif /* CONFIG_P2P */ |
| 629 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
| 630 | state == WPA_ASSOCIATED) { |
| 631 | wpa_s->new_connection = 1; |
| 632 | wpa_drv_set_operstate(wpa_s, 0); |
| 633 | #ifndef IEEE8021X_EAPOL |
| 634 | wpa_drv_set_supp_port(wpa_s, 0); |
| 635 | #endif /* IEEE8021X_EAPOL */ |
| 636 | } |
| 637 | wpa_s->wpa_state = state; |
| 638 | |
| 639 | #ifdef CONFIG_BGSCAN |
| 640 | if (state == WPA_COMPLETED) |
| 641 | wpa_supplicant_start_bgscan(wpa_s); |
| 642 | else |
| 643 | wpa_supplicant_stop_bgscan(wpa_s); |
| 644 | #endif /* CONFIG_BGSCAN */ |
| 645 | |
| 646 | if (wpa_s->wpa_state != old_state) { |
| 647 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
| 648 | |
| 649 | if (wpa_s->wpa_state == WPA_COMPLETED || |
| 650 | old_state == WPA_COMPLETED) |
| 651 | wpas_notify_auth_changed(wpa_s); |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | |
| 656 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
| 657 | { |
| 658 | int pending = 0; |
| 659 | #ifdef CONFIG_WPS |
| 660 | struct wpa_supplicant *wpa_s = global->ifaces; |
| 661 | while (wpa_s) { |
| 662 | if (wpas_wps_terminate_pending(wpa_s) == 1) |
| 663 | pending = 1; |
| 664 | wpa_s = wpa_s->next; |
| 665 | } |
| 666 | #endif /* CONFIG_WPS */ |
| 667 | if (pending) |
| 668 | return; |
| 669 | eloop_terminate(); |
| 670 | } |
| 671 | |
| 672 | |
| 673 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
| 674 | { |
| 675 | struct wpa_global *global = signal_ctx; |
| 676 | struct wpa_supplicant *wpa_s; |
| 677 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 678 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " |
| 679 | "received", sig); |
| 680 | } |
| 681 | wpa_supplicant_terminate_proc(global); |
| 682 | } |
| 683 | |
| 684 | |
| 685 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) |
| 686 | { |
| 687 | enum wpa_states old_state = wpa_s->wpa_state; |
| 688 | |
| 689 | wpa_s->pairwise_cipher = 0; |
| 690 | wpa_s->group_cipher = 0; |
| 691 | wpa_s->mgmt_group_cipher = 0; |
| 692 | wpa_s->key_mgmt = 0; |
| 693 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
| 694 | wpa_s->wpa_state = WPA_DISCONNECTED; |
| 695 | |
| 696 | if (wpa_s->wpa_state != old_state) |
| 697 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
| 698 | } |
| 699 | |
| 700 | |
| 701 | /** |
| 702 | * wpa_supplicant_reload_configuration - Reload configuration data |
| 703 | * @wpa_s: Pointer to wpa_supplicant data |
| 704 | * Returns: 0 on success or -1 if configuration parsing failed |
| 705 | * |
| 706 | * This function can be used to request that the configuration data is reloaded |
| 707 | * (e.g., after configuration file change). This function is reloading |
| 708 | * configuration only for one interface, so this may need to be called multiple |
| 709 | * times if %wpa_supplicant is controlling multiple interfaces and all |
| 710 | * interfaces need reconfiguration. |
| 711 | */ |
| 712 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) |
| 713 | { |
| 714 | struct wpa_config *conf; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 715 | int reconf_ctrl; |
| 716 | int old_ap_scan; |
| 717 | |
| 718 | if (wpa_s->confname == NULL) |
| 719 | return -1; |
| 720 | conf = wpa_config_read(wpa_s->confname); |
| 721 | if (conf == NULL) { |
| 722 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " |
| 723 | "file '%s' - exiting", wpa_s->confname); |
| 724 | return -1; |
| 725 | } |
| 726 | conf->changed_parameters = (unsigned int) -1; |
| 727 | |
| 728 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface |
| 729 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && |
| 730 | os_strcmp(conf->ctrl_interface, |
| 731 | wpa_s->conf->ctrl_interface) != 0); |
| 732 | |
| 733 | if (reconf_ctrl && wpa_s->ctrl_iface) { |
| 734 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); |
| 735 | wpa_s->ctrl_iface = NULL; |
| 736 | } |
| 737 | |
| 738 | eapol_sm_invalidate_cached_session(wpa_s->eapol); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 739 | if (wpa_s->current_ssid) { |
| 740 | wpa_supplicant_deauthenticate(wpa_s, |
| 741 | WLAN_REASON_DEAUTH_LEAVING); |
| 742 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 743 | |
| 744 | /* |
| 745 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, |
| 746 | * pkcs11_engine_path, pkcs11_module_path. |
| 747 | */ |
| 748 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
| 749 | /* |
| 750 | * Clear forced success to clear EAP state for next |
| 751 | * authentication. |
| 752 | */ |
| 753 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
| 754 | } |
| 755 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); |
| 756 | wpa_sm_set_config(wpa_s->wpa, NULL); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 757 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 758 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); |
| 759 | rsn_preauth_deinit(wpa_s->wpa); |
| 760 | |
| 761 | old_ap_scan = wpa_s->conf->ap_scan; |
| 762 | wpa_config_free(wpa_s->conf); |
| 763 | wpa_s->conf = conf; |
| 764 | if (old_ap_scan != wpa_s->conf->ap_scan) |
| 765 | wpas_notify_ap_scan_changed(wpa_s); |
| 766 | |
| 767 | if (reconf_ctrl) |
| 768 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); |
| 769 | |
| 770 | wpa_supplicant_update_config(wpa_s); |
| 771 | |
| 772 | wpa_supplicant_clear_status(wpa_s); |
| 773 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
| 774 | wpa_s->reassociate = 1; |
| 775 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 776 | } |
| 777 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); |
| 778 | return 0; |
| 779 | } |
| 780 | |
| 781 | |
| 782 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
| 783 | { |
| 784 | struct wpa_global *global = signal_ctx; |
| 785 | struct wpa_supplicant *wpa_s; |
| 786 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 787 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", |
| 788 | sig); |
| 789 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { |
| 790 | wpa_supplicant_terminate_proc(global); |
| 791 | } |
| 792 | } |
| 793 | } |
| 794 | |
| 795 | |
| 796 | enum wpa_cipher cipher_suite2driver(int cipher) |
| 797 | { |
| 798 | switch (cipher) { |
| 799 | case WPA_CIPHER_NONE: |
| 800 | return CIPHER_NONE; |
| 801 | case WPA_CIPHER_WEP40: |
| 802 | return CIPHER_WEP40; |
| 803 | case WPA_CIPHER_WEP104: |
| 804 | return CIPHER_WEP104; |
| 805 | case WPA_CIPHER_CCMP: |
| 806 | return CIPHER_CCMP; |
| 807 | case WPA_CIPHER_TKIP: |
| 808 | default: |
| 809 | return CIPHER_TKIP; |
| 810 | } |
| 811 | } |
| 812 | |
| 813 | |
| 814 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
| 815 | { |
| 816 | switch (key_mgmt) { |
| 817 | case WPA_KEY_MGMT_NONE: |
| 818 | return KEY_MGMT_NONE; |
| 819 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: |
| 820 | return KEY_MGMT_802_1X_NO_WPA; |
| 821 | case WPA_KEY_MGMT_IEEE8021X: |
| 822 | return KEY_MGMT_802_1X; |
| 823 | case WPA_KEY_MGMT_WPA_NONE: |
| 824 | return KEY_MGMT_WPA_NONE; |
| 825 | case WPA_KEY_MGMT_FT_IEEE8021X: |
| 826 | return KEY_MGMT_FT_802_1X; |
| 827 | case WPA_KEY_MGMT_FT_PSK: |
| 828 | return KEY_MGMT_FT_PSK; |
| 829 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
| 830 | return KEY_MGMT_802_1X_SHA256; |
| 831 | case WPA_KEY_MGMT_PSK_SHA256: |
| 832 | return KEY_MGMT_PSK_SHA256; |
| 833 | case WPA_KEY_MGMT_WPS: |
| 834 | return KEY_MGMT_WPS; |
| 835 | case WPA_KEY_MGMT_PSK: |
| 836 | default: |
| 837 | return KEY_MGMT_PSK; |
| 838 | } |
| 839 | } |
| 840 | |
| 841 | |
| 842 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, |
| 843 | struct wpa_ssid *ssid, |
| 844 | struct wpa_ie_data *ie) |
| 845 | { |
| 846 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); |
| 847 | if (ret) { |
| 848 | if (ret == -2) { |
| 849 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " |
| 850 | "from association info"); |
| 851 | } |
| 852 | return -1; |
| 853 | } |
| 854 | |
| 855 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " |
| 856 | "cipher suites"); |
| 857 | if (!(ie->group_cipher & ssid->group_cipher)) { |
| 858 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " |
| 859 | "cipher 0x%x (mask 0x%x) - reject", |
| 860 | ie->group_cipher, ssid->group_cipher); |
| 861 | return -1; |
| 862 | } |
| 863 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { |
| 864 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " |
| 865 | "cipher 0x%x (mask 0x%x) - reject", |
| 866 | ie->pairwise_cipher, ssid->pairwise_cipher); |
| 867 | return -1; |
| 868 | } |
| 869 | if (!(ie->key_mgmt & ssid->key_mgmt)) { |
| 870 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " |
| 871 | "management 0x%x (mask 0x%x) - reject", |
| 872 | ie->key_mgmt, ssid->key_mgmt); |
| 873 | return -1; |
| 874 | } |
| 875 | |
| 876 | #ifdef CONFIG_IEEE80211W |
| 877 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
| 878 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
| 879 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
| 880 | "that does not support management frame protection - " |
| 881 | "reject"); |
| 882 | return -1; |
| 883 | } |
| 884 | #endif /* CONFIG_IEEE80211W */ |
| 885 | |
| 886 | return 0; |
| 887 | } |
| 888 | |
| 889 | |
| 890 | /** |
| 891 | * wpa_supplicant_set_suites - Set authentication and encryption parameters |
| 892 | * @wpa_s: Pointer to wpa_supplicant data |
| 893 | * @bss: Scan results for the selected BSS, or %NULL if not available |
| 894 | * @ssid: Configuration data for the selected network |
| 895 | * @wpa_ie: Buffer for the WPA/RSN IE |
| 896 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the |
| 897 | * used buffer length in case the functions returns success. |
| 898 | * Returns: 0 on success or -1 on failure |
| 899 | * |
| 900 | * This function is used to configure authentication and encryption parameters |
| 901 | * based on the network configuration and scan result for the selected BSS (if |
| 902 | * available). |
| 903 | */ |
| 904 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, |
| 905 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
| 906 | u8 *wpa_ie, size_t *wpa_ie_len) |
| 907 | { |
| 908 | struct wpa_ie_data ie; |
| 909 | int sel, proto; |
| 910 | const u8 *bss_wpa, *bss_rsn; |
| 911 | |
| 912 | if (bss) { |
| 913 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
| 914 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
| 915 | } else |
| 916 | bss_wpa = bss_rsn = NULL; |
| 917 | |
| 918 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && |
| 919 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && |
| 920 | (ie.group_cipher & ssid->group_cipher) && |
| 921 | (ie.pairwise_cipher & ssid->pairwise_cipher) && |
| 922 | (ie.key_mgmt & ssid->key_mgmt)) { |
| 923 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); |
| 924 | proto = WPA_PROTO_RSN; |
| 925 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && |
| 926 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && |
| 927 | (ie.group_cipher & ssid->group_cipher) && |
| 928 | (ie.pairwise_cipher & ssid->pairwise_cipher) && |
| 929 | (ie.key_mgmt & ssid->key_mgmt)) { |
| 930 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); |
| 931 | proto = WPA_PROTO_WPA; |
| 932 | } else if (bss) { |
| 933 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); |
| 934 | return -1; |
| 935 | } else { |
| 936 | if (ssid->proto & WPA_PROTO_RSN) |
| 937 | proto = WPA_PROTO_RSN; |
| 938 | else |
| 939 | proto = WPA_PROTO_WPA; |
| 940 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { |
| 941 | os_memset(&ie, 0, sizeof(ie)); |
| 942 | ie.group_cipher = ssid->group_cipher; |
| 943 | ie.pairwise_cipher = ssid->pairwise_cipher; |
| 944 | ie.key_mgmt = ssid->key_mgmt; |
| 945 | #ifdef CONFIG_IEEE80211W |
| 946 | ie.mgmt_group_cipher = |
| 947 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
| 948 | WPA_CIPHER_AES_128_CMAC : 0; |
| 949 | #endif /* CONFIG_IEEE80211W */ |
| 950 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " |
| 951 | "based on configuration"); |
| 952 | } else |
| 953 | proto = ie.proto; |
| 954 | } |
| 955 | |
| 956 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " |
| 957 | "pairwise %d key_mgmt %d proto %d", |
| 958 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); |
| 959 | #ifdef CONFIG_IEEE80211W |
| 960 | if (ssid->ieee80211w) { |
| 961 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", |
| 962 | ie.mgmt_group_cipher); |
| 963 | } |
| 964 | #endif /* CONFIG_IEEE80211W */ |
| 965 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 966 | wpa_s->wpa_proto = proto; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 967 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); |
| 968 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, |
| 969 | !!(ssid->proto & WPA_PROTO_RSN)); |
| 970 | |
| 971 | if (bss || !wpa_s->ap_ies_from_associnfo) { |
| 972 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, |
| 973 | bss_wpa ? 2 + bss_wpa[1] : 0) || |
| 974 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, |
| 975 | bss_rsn ? 2 + bss_rsn[1] : 0)) |
| 976 | return -1; |
| 977 | } |
| 978 | |
| 979 | sel = ie.group_cipher & ssid->group_cipher; |
| 980 | if (sel & WPA_CIPHER_CCMP) { |
| 981 | wpa_s->group_cipher = WPA_CIPHER_CCMP; |
| 982 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); |
| 983 | } else if (sel & WPA_CIPHER_TKIP) { |
| 984 | wpa_s->group_cipher = WPA_CIPHER_TKIP; |
| 985 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); |
| 986 | } else if (sel & WPA_CIPHER_WEP104) { |
| 987 | wpa_s->group_cipher = WPA_CIPHER_WEP104; |
| 988 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); |
| 989 | } else if (sel & WPA_CIPHER_WEP40) { |
| 990 | wpa_s->group_cipher = WPA_CIPHER_WEP40; |
| 991 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); |
| 992 | } else { |
| 993 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " |
| 994 | "cipher"); |
| 995 | return -1; |
| 996 | } |
| 997 | |
| 998 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; |
| 999 | if (sel & WPA_CIPHER_CCMP) { |
| 1000 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; |
| 1001 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); |
| 1002 | } else if (sel & WPA_CIPHER_TKIP) { |
| 1003 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; |
| 1004 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); |
| 1005 | } else if (sel & WPA_CIPHER_NONE) { |
| 1006 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; |
| 1007 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); |
| 1008 | } else { |
| 1009 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " |
| 1010 | "cipher"); |
| 1011 | return -1; |
| 1012 | } |
| 1013 | |
| 1014 | sel = ie.key_mgmt & ssid->key_mgmt; |
| 1015 | if (0) { |
| 1016 | #ifdef CONFIG_IEEE80211R |
| 1017 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { |
| 1018 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; |
| 1019 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); |
| 1020 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { |
| 1021 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; |
| 1022 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); |
| 1023 | #endif /* CONFIG_IEEE80211R */ |
| 1024 | #ifdef CONFIG_IEEE80211W |
| 1025 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { |
| 1026 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; |
| 1027 | wpa_dbg(wpa_s, MSG_DEBUG, |
| 1028 | "WPA: using KEY_MGMT 802.1X with SHA256"); |
| 1029 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { |
| 1030 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; |
| 1031 | wpa_dbg(wpa_s, MSG_DEBUG, |
| 1032 | "WPA: using KEY_MGMT PSK with SHA256"); |
| 1033 | #endif /* CONFIG_IEEE80211W */ |
| 1034 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
| 1035 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; |
| 1036 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); |
| 1037 | } else if (sel & WPA_KEY_MGMT_PSK) { |
| 1038 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; |
| 1039 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); |
| 1040 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { |
| 1041 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; |
| 1042 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); |
| 1043 | } else { |
| 1044 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " |
| 1045 | "authenticated key management type"); |
| 1046 | return -1; |
| 1047 | } |
| 1048 | |
| 1049 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); |
| 1050 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, |
| 1051 | wpa_s->pairwise_cipher); |
| 1052 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); |
| 1053 | |
| 1054 | #ifdef CONFIG_IEEE80211W |
| 1055 | sel = ie.mgmt_group_cipher; |
| 1056 | if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION || |
| 1057 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
| 1058 | sel = 0; |
| 1059 | if (sel & WPA_CIPHER_AES_128_CMAC) { |
| 1060 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; |
| 1061 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " |
| 1062 | "AES-128-CMAC"); |
| 1063 | } else { |
| 1064 | wpa_s->mgmt_group_cipher = 0; |
| 1065 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); |
| 1066 | } |
| 1067 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, |
| 1068 | wpa_s->mgmt_group_cipher); |
| 1069 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w); |
| 1070 | #endif /* CONFIG_IEEE80211W */ |
| 1071 | |
| 1072 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { |
| 1073 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); |
| 1074 | return -1; |
| 1075 | } |
| 1076 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1077 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1078 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1079 | #ifndef CONFIG_NO_PBKDF2 |
| 1080 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && |
| 1081 | ssid->passphrase) { |
| 1082 | u8 psk[PMK_LEN]; |
| 1083 | pbkdf2_sha1(ssid->passphrase, (char *) bss->ssid, |
| 1084 | bss->ssid_len, 4096, psk, PMK_LEN); |
| 1085 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", |
| 1086 | psk, PMK_LEN); |
| 1087 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); |
| 1088 | } |
| 1089 | #endif /* CONFIG_NO_PBKDF2 */ |
| 1090 | } else |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1091 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); |
| 1092 | |
| 1093 | return 0; |
| 1094 | } |
| 1095 | |
| 1096 | |
| 1097 | /** |
| 1098 | * wpa_supplicant_associate - Request association |
| 1099 | * @wpa_s: Pointer to wpa_supplicant data |
| 1100 | * @bss: Scan results for the selected BSS, or %NULL if not available |
| 1101 | * @ssid: Configuration data for the selected network |
| 1102 | * |
| 1103 | * This function is used to request %wpa_supplicant to associate with a BSS. |
| 1104 | */ |
| 1105 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, |
| 1106 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
| 1107 | { |
| 1108 | u8 wpa_ie[200]; |
| 1109 | size_t wpa_ie_len; |
| 1110 | int use_crypt, ret, i, bssid_changed; |
| 1111 | int algs = WPA_AUTH_ALG_OPEN; |
| 1112 | enum wpa_cipher cipher_pairwise, cipher_group; |
| 1113 | struct wpa_driver_associate_params params; |
| 1114 | int wep_keys_set = 0; |
| 1115 | struct wpa_driver_capa capa; |
| 1116 | int assoc_failed = 0; |
| 1117 | struct wpa_ssid *old_ssid; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1118 | #ifdef ANDROID_P2P |
| 1119 | int freq = 0; |
| 1120 | #endif |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1121 | |
| 1122 | #ifdef CONFIG_IBSS_RSN |
| 1123 | ibss_rsn_deinit(wpa_s->ibss_rsn); |
| 1124 | wpa_s->ibss_rsn = NULL; |
| 1125 | #endif /* CONFIG_IBSS_RSN */ |
| 1126 | |
| 1127 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || |
| 1128 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { |
| 1129 | #ifdef CONFIG_AP |
| 1130 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { |
| 1131 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " |
| 1132 | "mode"); |
| 1133 | return; |
| 1134 | } |
| 1135 | wpa_supplicant_create_ap(wpa_s, ssid); |
| 1136 | wpa_s->current_bss = bss; |
| 1137 | #else /* CONFIG_AP */ |
| 1138 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " |
| 1139 | "the build"); |
| 1140 | #endif /* CONFIG_AP */ |
| 1141 | return; |
| 1142 | } |
| 1143 | |
| 1144 | #ifdef CONFIG_TDLS |
| 1145 | if (bss) |
| 1146 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), |
| 1147 | bss->ie_len); |
| 1148 | #endif /* CONFIG_TDLS */ |
| 1149 | |
| 1150 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
| 1151 | ssid->mode == IEEE80211_MODE_INFRA) { |
| 1152 | sme_authenticate(wpa_s, bss, ssid); |
| 1153 | return; |
| 1154 | } |
| 1155 | |
| 1156 | os_memset(¶ms, 0, sizeof(params)); |
| 1157 | wpa_s->reassociate = 0; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1158 | if (bss && !wpas_driver_bss_selection(wpa_s)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1159 | #ifdef CONFIG_IEEE80211R |
| 1160 | const u8 *ie, *md = NULL; |
| 1161 | #endif /* CONFIG_IEEE80211R */ |
| 1162 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
| 1163 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), |
| 1164 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
| 1165 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
| 1166 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
| 1167 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); |
| 1168 | if (bssid_changed) |
| 1169 | wpas_notify_bssid_changed(wpa_s); |
| 1170 | #ifdef CONFIG_IEEE80211R |
| 1171 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
| 1172 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
| 1173 | md = ie + 2; |
| 1174 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
| 1175 | if (md) { |
| 1176 | /* Prepare for the next transition */ |
| 1177 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
| 1178 | } |
| 1179 | #endif /* CONFIG_IEEE80211R */ |
| 1180 | #ifdef CONFIG_WPS |
| 1181 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && |
| 1182 | wpa_s->conf->ap_scan == 2 && |
| 1183 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { |
| 1184 | /* Use ap_scan==1 style network selection to find the network |
| 1185 | */ |
| 1186 | wpa_s->scan_req = 2; |
| 1187 | wpa_s->reassociate = 1; |
| 1188 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 1189 | return; |
| 1190 | #endif /* CONFIG_WPS */ |
| 1191 | } else { |
| 1192 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", |
| 1193 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); |
| 1194 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); |
| 1195 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1196 | wpa_supplicant_cancel_sched_scan(wpa_s); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1197 | wpa_supplicant_cancel_scan(wpa_s); |
| 1198 | |
| 1199 | /* Starting new association, so clear the possibly used WPA IE from the |
| 1200 | * previous association. */ |
| 1201 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); |
| 1202 | |
| 1203 | #ifdef IEEE8021X_EAPOL |
| 1204 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { |
| 1205 | if (ssid->leap) { |
| 1206 | if (ssid->non_leap == 0) |
| 1207 | algs = WPA_AUTH_ALG_LEAP; |
| 1208 | else |
| 1209 | algs |= WPA_AUTH_ALG_LEAP; |
| 1210 | } |
| 1211 | } |
| 1212 | #endif /* IEEE8021X_EAPOL */ |
| 1213 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); |
| 1214 | if (ssid->auth_alg) { |
| 1215 | algs = ssid->auth_alg; |
| 1216 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " |
| 1217 | "0x%x", algs); |
| 1218 | } |
| 1219 | |
| 1220 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
| 1221 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1222 | wpa_key_mgmt_wpa(ssid->key_mgmt)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1223 | int try_opportunistic; |
| 1224 | try_opportunistic = ssid->proactive_key_caching && |
| 1225 | (ssid->proto & WPA_PROTO_RSN); |
| 1226 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, |
| 1227 | wpa_s->current_ssid, |
| 1228 | try_opportunistic) == 0) |
| 1229 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); |
| 1230 | wpa_ie_len = sizeof(wpa_ie); |
| 1231 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, |
| 1232 | wpa_ie, &wpa_ie_len)) { |
| 1233 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
| 1234 | "key management and encryption suites"); |
| 1235 | return; |
| 1236 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1237 | } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1238 | wpa_ie_len = sizeof(wpa_ie); |
| 1239 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, |
| 1240 | wpa_ie, &wpa_ie_len)) { |
| 1241 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
| 1242 | "key management and encryption suites (no " |
| 1243 | "scan results)"); |
| 1244 | return; |
| 1245 | } |
| 1246 | #ifdef CONFIG_WPS |
| 1247 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { |
| 1248 | struct wpabuf *wps_ie; |
| 1249 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); |
| 1250 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
| 1251 | wpa_ie_len = wpabuf_len(wps_ie); |
| 1252 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); |
| 1253 | } else |
| 1254 | wpa_ie_len = 0; |
| 1255 | wpabuf_free(wps_ie); |
| 1256 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); |
| 1257 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
| 1258 | params.wps = WPS_MODE_PRIVACY; |
| 1259 | else |
| 1260 | params.wps = WPS_MODE_OPEN; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1261 | wpa_s->wpa_proto = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1262 | #endif /* CONFIG_WPS */ |
| 1263 | } else { |
| 1264 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); |
| 1265 | wpa_ie_len = 0; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1266 | wpa_s->wpa_proto = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1267 | } |
| 1268 | |
| 1269 | #ifdef CONFIG_P2P |
| 1270 | if (wpa_s->global->p2p) { |
| 1271 | u8 *pos; |
| 1272 | size_t len; |
| 1273 | int res; |
| 1274 | int p2p_group; |
| 1275 | p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE; |
| 1276 | pos = wpa_ie + wpa_ie_len; |
| 1277 | len = sizeof(wpa_ie) - wpa_ie_len; |
| 1278 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group); |
| 1279 | if (res >= 0) |
| 1280 | wpa_ie_len += res; |
| 1281 | } |
| 1282 | |
| 1283 | wpa_s->cross_connect_disallowed = 0; |
| 1284 | if (bss) { |
| 1285 | struct wpabuf *p2p; |
| 1286 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); |
| 1287 | if (p2p) { |
| 1288 | wpa_s->cross_connect_disallowed = |
| 1289 | p2p_get_cross_connect_disallowed(p2p); |
| 1290 | wpabuf_free(p2p); |
| 1291 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " |
| 1292 | "connection", |
| 1293 | wpa_s->cross_connect_disallowed ? |
| 1294 | "disallows" : "allows"); |
| 1295 | } |
| 1296 | } |
| 1297 | #endif /* CONFIG_P2P */ |
| 1298 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1299 | #ifdef CONFIG_INTERWORKING |
| 1300 | if (wpa_s->conf->interworking) { |
| 1301 | u8 *pos = wpa_ie; |
| 1302 | if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) |
| 1303 | pos += 2 + pos[1]; |
| 1304 | os_memmove(pos + 6, pos, wpa_ie_len - (pos - wpa_ie)); |
| 1305 | wpa_ie_len += 6; |
| 1306 | *pos++ = WLAN_EID_EXT_CAPAB; |
| 1307 | *pos++ = 4; |
| 1308 | *pos++ = 0x00; |
| 1309 | *pos++ = 0x00; |
| 1310 | *pos++ = 0x00; |
| 1311 | *pos++ = 0x80; /* Bit 31 - Interworking */ |
| 1312 | } |
| 1313 | #endif /* CONFIG_INTERWORKING */ |
| 1314 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1315 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); |
| 1316 | use_crypt = 1; |
| 1317 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); |
| 1318 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); |
| 1319 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
| 1320 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { |
| 1321 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) |
| 1322 | use_crypt = 0; |
| 1323 | if (wpa_set_wep_keys(wpa_s, ssid)) { |
| 1324 | use_crypt = 1; |
| 1325 | wep_keys_set = 1; |
| 1326 | } |
| 1327 | } |
| 1328 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
| 1329 | use_crypt = 0; |
| 1330 | |
| 1331 | #ifdef IEEE8021X_EAPOL |
| 1332 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { |
| 1333 | if ((ssid->eapol_flags & |
| 1334 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | |
| 1335 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && |
| 1336 | !wep_keys_set) { |
| 1337 | use_crypt = 0; |
| 1338 | } else { |
| 1339 | /* Assume that dynamic WEP-104 keys will be used and |
| 1340 | * set cipher suites in order for drivers to expect |
| 1341 | * encryption. */ |
| 1342 | cipher_pairwise = cipher_group = CIPHER_WEP104; |
| 1343 | } |
| 1344 | } |
| 1345 | #endif /* IEEE8021X_EAPOL */ |
| 1346 | |
| 1347 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { |
| 1348 | /* Set the key before (and later after) association */ |
| 1349 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); |
| 1350 | } |
| 1351 | |
| 1352 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
| 1353 | if (bss) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1354 | params.ssid = bss->ssid; |
| 1355 | params.ssid_len = bss->ssid_len; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1356 | if (!wpas_driver_bss_selection(wpa_s)) { |
| 1357 | params.bssid = bss->bssid; |
| 1358 | params.freq = bss->freq; |
| 1359 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1360 | } else { |
| 1361 | params.ssid = ssid->ssid; |
| 1362 | params.ssid_len = ssid->ssid_len; |
| 1363 | } |
| 1364 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
| 1365 | params.freq == 0) |
| 1366 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
| 1367 | params.wpa_ie = wpa_ie; |
| 1368 | params.wpa_ie_len = wpa_ie_len; |
| 1369 | params.pairwise_suite = cipher_pairwise; |
| 1370 | params.group_suite = cipher_group; |
| 1371 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1372 | params.wpa_proto = wpa_s->wpa_proto; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1373 | params.auth_alg = algs; |
| 1374 | params.mode = ssid->mode; |
| 1375 | for (i = 0; i < NUM_WEP_KEYS; i++) { |
| 1376 | if (ssid->wep_key_len[i]) |
| 1377 | params.wep_key[i] = ssid->wep_key[i]; |
| 1378 | params.wep_key_len[i] = ssid->wep_key_len[i]; |
| 1379 | } |
| 1380 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; |
| 1381 | |
| 1382 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
| 1383 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
| 1384 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { |
| 1385 | params.passphrase = ssid->passphrase; |
| 1386 | if (ssid->psk_set) |
| 1387 | params.psk = ssid->psk; |
| 1388 | } |
| 1389 | |
| 1390 | params.drop_unencrypted = use_crypt; |
| 1391 | |
| 1392 | #ifdef CONFIG_IEEE80211W |
| 1393 | params.mgmt_frame_protection = ssid->ieee80211w; |
| 1394 | if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) { |
| 1395 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
| 1396 | struct wpa_ie_data ie; |
| 1397 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && |
| 1398 | ie.capabilities & |
| 1399 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { |
| 1400 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " |
| 1401 | "MFP: require MFP"); |
| 1402 | params.mgmt_frame_protection = |
| 1403 | MGMT_FRAME_PROTECTION_REQUIRED; |
| 1404 | } |
| 1405 | } |
| 1406 | #endif /* CONFIG_IEEE80211W */ |
| 1407 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1408 | params.p2p = ssid->p2p_group; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1409 | |
| 1410 | if (wpa_s->parent->set_sta_uapsd) |
| 1411 | params.uapsd = wpa_s->parent->sta_uapsd; |
| 1412 | else |
| 1413 | params.uapsd = -1; |
| 1414 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1415 | #ifdef ANDROID_P2P |
| 1416 | /* If multichannel concurrency is not supported, check for any frequency |
| 1417 | * conflict and take appropriate action. |
| 1418 | */ |
| 1419 | if (((freq = wpa_drv_shared_freq(wpa_s)) > 0) && (freq != params.freq) && |
| 1420 | !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) { |
| 1421 | wpa_printf(MSG_ERROR, "Shared interface with conflicting frequency found (%d != %d)" |
| 1422 | , freq, params.freq); |
| 1423 | wpas_p2p_handle_frequency_conflicts(wpa_s, params.freq); |
| 1424 | } |
| 1425 | #endif |
| 1426 | ret = wpa_drv_associate(wpa_s, ¶ms); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1427 | if (ret < 0) { |
| 1428 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " |
| 1429 | "failed"); |
| 1430 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { |
| 1431 | /* |
| 1432 | * The driver is known to mean what is saying, so we |
| 1433 | * can stop right here; the association will not |
| 1434 | * succeed. |
| 1435 | */ |
| 1436 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); |
| 1437 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); |
| 1438 | return; |
| 1439 | } |
| 1440 | /* try to continue anyway; new association will be tried again |
| 1441 | * after timeout */ |
| 1442 | assoc_failed = 1; |
| 1443 | } |
| 1444 | |
| 1445 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { |
| 1446 | /* Set the key after the association just in case association |
| 1447 | * cleared the previously configured key. */ |
| 1448 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); |
| 1449 | /* No need to timeout authentication since there is no key |
| 1450 | * management. */ |
| 1451 | wpa_supplicant_cancel_auth_timeout(wpa_s); |
| 1452 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); |
| 1453 | #ifdef CONFIG_IBSS_RSN |
| 1454 | } else if (ssid->mode == WPAS_MODE_IBSS && |
| 1455 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
| 1456 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { |
| 1457 | /* |
| 1458 | * RSN IBSS authentication is per-STA and we can disable the |
| 1459 | * per-BSSID authentication. |
| 1460 | */ |
| 1461 | wpa_supplicant_cancel_auth_timeout(wpa_s); |
| 1462 | #endif /* CONFIG_IBSS_RSN */ |
| 1463 | } else { |
| 1464 | /* Timeout for IEEE 802.11 authentication and association */ |
| 1465 | int timeout = 60; |
| 1466 | |
| 1467 | if (assoc_failed) { |
| 1468 | /* give IBSS a bit more time */ |
| 1469 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
| 1470 | } else if (wpa_s->conf->ap_scan == 1) { |
| 1471 | /* give IBSS a bit more time */ |
| 1472 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
| 1473 | } |
| 1474 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
| 1475 | } |
| 1476 | |
| 1477 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && |
| 1478 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { |
| 1479 | /* Set static WEP keys again */ |
| 1480 | wpa_set_wep_keys(wpa_s, ssid); |
| 1481 | } |
| 1482 | |
| 1483 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { |
| 1484 | /* |
| 1485 | * Do not allow EAP session resumption between different |
| 1486 | * network configurations. |
| 1487 | */ |
| 1488 | eapol_sm_invalidate_cached_session(wpa_s->eapol); |
| 1489 | } |
| 1490 | old_ssid = wpa_s->current_ssid; |
| 1491 | wpa_s->current_ssid = ssid; |
| 1492 | wpa_s->current_bss = bss; |
| 1493 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
| 1494 | wpa_supplicant_initiate_eapol(wpa_s); |
| 1495 | if (old_ssid != wpa_s->current_ssid) |
| 1496 | wpas_notify_network_changed(wpa_s); |
| 1497 | } |
| 1498 | |
| 1499 | |
| 1500 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
| 1501 | const u8 *addr) |
| 1502 | { |
| 1503 | struct wpa_ssid *old_ssid; |
| 1504 | |
| 1505 | wpa_clear_keys(wpa_s, addr); |
| 1506 | wpa_supplicant_mark_disassoc(wpa_s); |
| 1507 | old_ssid = wpa_s->current_ssid; |
| 1508 | wpa_s->current_ssid = NULL; |
| 1509 | wpa_s->current_bss = NULL; |
| 1510 | wpa_sm_set_config(wpa_s->wpa, NULL); |
| 1511 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); |
| 1512 | if (old_ssid != wpa_s->current_ssid) |
| 1513 | wpas_notify_network_changed(wpa_s); |
| 1514 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
| 1515 | } |
| 1516 | |
| 1517 | |
| 1518 | /** |
| 1519 | * wpa_supplicant_disassociate - Disassociate the current connection |
| 1520 | * @wpa_s: Pointer to wpa_supplicant data |
| 1521 | * @reason_code: IEEE 802.11 reason code for the disassociate frame |
| 1522 | * |
| 1523 | * This function is used to request %wpa_supplicant to disassociate with the |
| 1524 | * current AP. |
| 1525 | */ |
| 1526 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, |
| 1527 | int reason_code) |
| 1528 | { |
| 1529 | u8 *addr = NULL; |
| 1530 | |
| 1531 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1532 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1533 | addr = wpa_s->bssid; |
| 1534 | } |
| 1535 | |
| 1536 | wpa_supplicant_clear_connection(wpa_s, addr); |
| 1537 | } |
| 1538 | |
| 1539 | |
| 1540 | /** |
| 1541 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection |
| 1542 | * @wpa_s: Pointer to wpa_supplicant data |
| 1543 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame |
| 1544 | * |
| 1545 | * This function is used to request %wpa_supplicant to deauthenticate from the |
| 1546 | * current AP. |
| 1547 | */ |
| 1548 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, |
| 1549 | int reason_code) |
| 1550 | { |
| 1551 | u8 *addr = NULL; |
| 1552 | |
| 1553 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1554 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, reason_code); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1555 | addr = wpa_s->bssid; |
| 1556 | } |
| 1557 | |
| 1558 | wpa_supplicant_clear_connection(wpa_s, addr); |
| 1559 | } |
| 1560 | |
| 1561 | |
| 1562 | /** |
| 1563 | * wpa_supplicant_enable_network - Mark a configured network as enabled |
| 1564 | * @wpa_s: wpa_supplicant structure for a network interface |
| 1565 | * @ssid: wpa_ssid structure for a configured network or %NULL |
| 1566 | * |
| 1567 | * Enables the specified network or all networks if no network specified. |
| 1568 | */ |
| 1569 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, |
| 1570 | struct wpa_ssid *ssid) |
| 1571 | { |
| 1572 | struct wpa_ssid *other_ssid; |
| 1573 | int was_disabled; |
| 1574 | |
| 1575 | if (ssid == NULL) { |
| 1576 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
| 1577 | other_ssid = other_ssid->next) { |
| 1578 | if (other_ssid->disabled == 2) |
| 1579 | continue; /* do not change persistent P2P group |
| 1580 | * data */ |
| 1581 | if (other_ssid == wpa_s->current_ssid && |
| 1582 | other_ssid->disabled) |
| 1583 | wpa_s->reassociate = 1; |
| 1584 | |
| 1585 | was_disabled = other_ssid->disabled; |
| 1586 | |
| 1587 | other_ssid->disabled = 0; |
| 1588 | |
| 1589 | if (was_disabled != other_ssid->disabled) |
| 1590 | wpas_notify_network_enabled_changed( |
| 1591 | wpa_s, other_ssid); |
| 1592 | } |
| 1593 | if (wpa_s->reassociate) |
| 1594 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 1595 | } else if (ssid->disabled && ssid->disabled != 2) { |
| 1596 | if (wpa_s->current_ssid == NULL) { |
| 1597 | /* |
| 1598 | * Try to reassociate since there is no current |
| 1599 | * configuration and a new network was made available. |
| 1600 | */ |
| 1601 | wpa_s->reassociate = 1; |
| 1602 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 1603 | } |
| 1604 | |
| 1605 | was_disabled = ssid->disabled; |
| 1606 | |
| 1607 | ssid->disabled = 0; |
| 1608 | |
| 1609 | if (was_disabled != ssid->disabled) |
| 1610 | wpas_notify_network_enabled_changed(wpa_s, ssid); |
| 1611 | } |
| 1612 | } |
| 1613 | |
| 1614 | |
| 1615 | /** |
| 1616 | * wpa_supplicant_disable_network - Mark a configured network as disabled |
| 1617 | * @wpa_s: wpa_supplicant structure for a network interface |
| 1618 | * @ssid: wpa_ssid structure for a configured network or %NULL |
| 1619 | * |
| 1620 | * Disables the specified network or all networks if no network specified. |
| 1621 | */ |
| 1622 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, |
| 1623 | struct wpa_ssid *ssid) |
| 1624 | { |
| 1625 | struct wpa_ssid *other_ssid; |
| 1626 | int was_disabled; |
| 1627 | |
| 1628 | if (ssid == NULL) { |
| 1629 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
| 1630 | other_ssid = other_ssid->next) { |
| 1631 | was_disabled = other_ssid->disabled; |
| 1632 | if (was_disabled == 2) |
| 1633 | continue; /* do not change persistent P2P group |
| 1634 | * data */ |
| 1635 | |
| 1636 | other_ssid->disabled = 1; |
| 1637 | |
| 1638 | if (was_disabled != other_ssid->disabled) |
| 1639 | wpas_notify_network_enabled_changed( |
| 1640 | wpa_s, other_ssid); |
| 1641 | } |
| 1642 | if (wpa_s->current_ssid) |
| 1643 | wpa_supplicant_disassociate( |
| 1644 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
| 1645 | } else if (ssid->disabled != 2) { |
| 1646 | if (ssid == wpa_s->current_ssid) |
| 1647 | wpa_supplicant_disassociate( |
| 1648 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
| 1649 | |
| 1650 | was_disabled = ssid->disabled; |
| 1651 | |
| 1652 | ssid->disabled = 1; |
| 1653 | |
| 1654 | if (was_disabled != ssid->disabled) |
| 1655 | wpas_notify_network_enabled_changed(wpa_s, ssid); |
| 1656 | } |
| 1657 | } |
| 1658 | |
| 1659 | |
| 1660 | /** |
| 1661 | * wpa_supplicant_select_network - Attempt association with a network |
| 1662 | * @wpa_s: wpa_supplicant structure for a network interface |
| 1663 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network |
| 1664 | */ |
| 1665 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, |
| 1666 | struct wpa_ssid *ssid) |
| 1667 | { |
| 1668 | |
| 1669 | struct wpa_ssid *other_ssid; |
| 1670 | |
| 1671 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) |
| 1672 | wpa_supplicant_disassociate( |
| 1673 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
| 1674 | |
| 1675 | /* |
| 1676 | * Mark all other networks disabled or mark all networks enabled if no |
| 1677 | * network specified. |
| 1678 | */ |
| 1679 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
| 1680 | other_ssid = other_ssid->next) { |
| 1681 | int was_disabled = other_ssid->disabled; |
| 1682 | if (was_disabled == 2) |
| 1683 | continue; /* do not change persistent P2P group data */ |
| 1684 | |
| 1685 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; |
| 1686 | |
| 1687 | if (was_disabled != other_ssid->disabled) |
| 1688 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); |
| 1689 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1690 | |
| 1691 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { |
| 1692 | /* We are already associated with the selected network */ |
| 1693 | wpa_printf(MSG_DEBUG, "Already associated with the " |
| 1694 | "selected network - do nothing"); |
| 1695 | return; |
| 1696 | } |
| 1697 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 1698 | wpa_s->connect_without_scan = NULL; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1699 | wpa_s->disconnected = 0; |
| 1700 | wpa_s->reassociate = 1; |
| 1701 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
| 1702 | |
| 1703 | if (ssid) |
| 1704 | wpas_notify_network_selected(wpa_s, ssid); |
| 1705 | } |
| 1706 | |
| 1707 | |
| 1708 | /** |
| 1709 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface |
| 1710 | * @wpa_s: wpa_supplicant structure for a network interface |
| 1711 | * @ap_scan: AP scan mode |
| 1712 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value |
| 1713 | * |
| 1714 | */ |
| 1715 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) |
| 1716 | { |
| 1717 | |
| 1718 | int old_ap_scan; |
| 1719 | |
| 1720 | if (ap_scan < 0 || ap_scan > 2) |
| 1721 | return -1; |
| 1722 | |
Dmitry Shmidt | 114c386 | 2011-08-16 11:52:06 -0700 | [diff] [blame] | 1723 | #ifdef ANDROID |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1724 | if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && |
| 1725 | wpa_s->wpa_state >= WPA_ASSOCIATING && |
| 1726 | wpa_s->wpa_state < WPA_COMPLETED) { |
| 1727 | wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " |
| 1728 | "associating", wpa_s->conf->ap_scan, ap_scan); |
Dmitry Shmidt | 114c386 | 2011-08-16 11:52:06 -0700 | [diff] [blame] | 1729 | return 0; |
| 1730 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1731 | #endif /* ANDROID */ |
Dmitry Shmidt | 114c386 | 2011-08-16 11:52:06 -0700 | [diff] [blame] | 1732 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1733 | old_ap_scan = wpa_s->conf->ap_scan; |
| 1734 | wpa_s->conf->ap_scan = ap_scan; |
| 1735 | |
| 1736 | if (old_ap_scan != wpa_s->conf->ap_scan) |
| 1737 | wpas_notify_ap_scan_changed(wpa_s); |
| 1738 | |
| 1739 | return 0; |
| 1740 | } |
| 1741 | |
| 1742 | |
| 1743 | /** |
| 1744 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age |
| 1745 | * @wpa_s: wpa_supplicant structure for a network interface |
| 1746 | * @expire_age: Expiration age in seconds |
| 1747 | * Returns: 0 if succeed or -1 if expire_age has an invalid value |
| 1748 | * |
| 1749 | */ |
| 1750 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, |
| 1751 | unsigned int bss_expire_age) |
| 1752 | { |
| 1753 | if (bss_expire_age < 10) { |
| 1754 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", |
| 1755 | bss_expire_age); |
| 1756 | return -1; |
| 1757 | } |
| 1758 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", |
| 1759 | bss_expire_age); |
| 1760 | wpa_s->conf->bss_expiration_age = bss_expire_age; |
| 1761 | |
| 1762 | return 0; |
| 1763 | } |
| 1764 | |
| 1765 | |
| 1766 | /** |
| 1767 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count |
| 1768 | * @wpa_s: wpa_supplicant structure for a network interface |
| 1769 | * @expire_count: number of scans after which an unseen BSS is reclaimed |
| 1770 | * Returns: 0 if succeed or -1 if expire_count has an invalid value |
| 1771 | * |
| 1772 | */ |
| 1773 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, |
| 1774 | unsigned int bss_expire_count) |
| 1775 | { |
| 1776 | if (bss_expire_count < 1) { |
| 1777 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", |
| 1778 | bss_expire_count); |
| 1779 | return -1; |
| 1780 | } |
| 1781 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", |
| 1782 | bss_expire_count); |
| 1783 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; |
| 1784 | |
| 1785 | return 0; |
| 1786 | } |
| 1787 | |
| 1788 | |
| 1789 | /** |
| 1790 | * wpa_supplicant_set_debug_params - Set global debug params |
| 1791 | * @global: wpa_global structure |
| 1792 | * @debug_level: debug level |
| 1793 | * @debug_timestamp: determines if show timestamp in debug data |
| 1794 | * @debug_show_keys: determines if show keys in debug data |
| 1795 | * Returns: 0 if succeed or -1 if debug_level has wrong value |
| 1796 | */ |
| 1797 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, |
| 1798 | int debug_timestamp, int debug_show_keys) |
| 1799 | { |
| 1800 | |
| 1801 | int old_level, old_timestamp, old_show_keys; |
| 1802 | |
| 1803 | /* check for allowed debuglevels */ |
| 1804 | if (debug_level != MSG_EXCESSIVE && |
| 1805 | debug_level != MSG_MSGDUMP && |
| 1806 | debug_level != MSG_DEBUG && |
| 1807 | debug_level != MSG_INFO && |
| 1808 | debug_level != MSG_WARNING && |
| 1809 | debug_level != MSG_ERROR) |
| 1810 | return -1; |
| 1811 | |
| 1812 | old_level = wpa_debug_level; |
| 1813 | old_timestamp = wpa_debug_timestamp; |
| 1814 | old_show_keys = wpa_debug_show_keys; |
| 1815 | |
| 1816 | wpa_debug_level = debug_level; |
| 1817 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; |
| 1818 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; |
| 1819 | |
| 1820 | if (wpa_debug_level != old_level) |
| 1821 | wpas_notify_debug_level_changed(global); |
| 1822 | if (wpa_debug_timestamp != old_timestamp) |
| 1823 | wpas_notify_debug_timestamp_changed(global); |
| 1824 | if (wpa_debug_show_keys != old_show_keys) |
| 1825 | wpas_notify_debug_show_keys_changed(global); |
| 1826 | |
| 1827 | return 0; |
| 1828 | } |
| 1829 | |
| 1830 | |
| 1831 | /** |
| 1832 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure |
| 1833 | * @wpa_s: Pointer to wpa_supplicant data |
| 1834 | * Returns: A pointer to the current network structure or %NULL on failure |
| 1835 | */ |
| 1836 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) |
| 1837 | { |
| 1838 | struct wpa_ssid *entry; |
| 1839 | u8 ssid[MAX_SSID_LEN]; |
| 1840 | int res; |
| 1841 | size_t ssid_len; |
| 1842 | u8 bssid[ETH_ALEN]; |
| 1843 | int wired; |
| 1844 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1845 | res = wpa_drv_get_ssid(wpa_s, ssid); |
| 1846 | if (res < 0) { |
| 1847 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " |
| 1848 | "driver"); |
| 1849 | return NULL; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1850 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1851 | ssid_len = res; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1852 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1853 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1854 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " |
| 1855 | "driver"); |
| 1856 | return NULL; |
| 1857 | } |
| 1858 | |
| 1859 | wired = wpa_s->conf->ap_scan == 0 && |
| 1860 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); |
| 1861 | |
| 1862 | entry = wpa_s->conf->ssid; |
| 1863 | while (entry) { |
| 1864 | if (!entry->disabled && |
| 1865 | ((ssid_len == entry->ssid_len && |
| 1866 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && |
| 1867 | (!entry->bssid_set || |
| 1868 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) |
| 1869 | return entry; |
| 1870 | #ifdef CONFIG_WPS |
| 1871 | if (!entry->disabled && |
| 1872 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && |
| 1873 | (entry->ssid == NULL || entry->ssid_len == 0) && |
| 1874 | (!entry->bssid_set || |
| 1875 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) |
| 1876 | return entry; |
| 1877 | #endif /* CONFIG_WPS */ |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1878 | |
| 1879 | if (!entry->disabled && entry->bssid_set && |
| 1880 | entry->ssid_len == 0 && |
| 1881 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) |
| 1882 | return entry; |
| 1883 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1884 | entry = entry->next; |
| 1885 | } |
| 1886 | |
| 1887 | return NULL; |
| 1888 | } |
| 1889 | |
| 1890 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1891 | static int select_driver(struct wpa_supplicant *wpa_s, int i) |
| 1892 | { |
| 1893 | struct wpa_global *global = wpa_s->global; |
| 1894 | |
| 1895 | if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { |
| 1896 | global->drv_priv[i] = wpa_drivers[i]->global_init(); |
| 1897 | if (global->drv_priv[i] == NULL) { |
| 1898 | wpa_printf(MSG_ERROR, "Failed to initialize driver " |
| 1899 | "'%s'", wpa_drivers[i]->name); |
| 1900 | return -1; |
| 1901 | } |
| 1902 | } |
| 1903 | |
| 1904 | wpa_s->driver = wpa_drivers[i]; |
| 1905 | wpa_s->global_drv_priv = global->drv_priv[i]; |
| 1906 | |
| 1907 | return 0; |
| 1908 | } |
| 1909 | |
| 1910 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1911 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, |
| 1912 | const char *name) |
| 1913 | { |
| 1914 | int i; |
| 1915 | size_t len; |
| 1916 | const char *pos, *driver = name; |
| 1917 | |
| 1918 | if (wpa_s == NULL) |
| 1919 | return -1; |
| 1920 | |
| 1921 | if (wpa_drivers[0] == NULL) { |
| 1922 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " |
| 1923 | "wpa_supplicant"); |
| 1924 | return -1; |
| 1925 | } |
| 1926 | |
| 1927 | if (name == NULL) { |
| 1928 | /* default to first driver in the list */ |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1929 | return select_driver(wpa_s, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1930 | } |
| 1931 | |
| 1932 | do { |
| 1933 | pos = os_strchr(driver, ','); |
| 1934 | if (pos) |
| 1935 | len = pos - driver; |
| 1936 | else |
| 1937 | len = os_strlen(driver); |
| 1938 | |
| 1939 | for (i = 0; wpa_drivers[i]; i++) { |
| 1940 | if (os_strlen(wpa_drivers[i]->name) == len && |
| 1941 | os_strncmp(driver, wpa_drivers[i]->name, len) == |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 1942 | 0) |
| 1943 | return select_driver(wpa_s, i); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 1944 | } |
| 1945 | |
| 1946 | driver = pos + 1; |
| 1947 | } while (pos); |
| 1948 | |
| 1949 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); |
| 1950 | return -1; |
| 1951 | } |
| 1952 | |
| 1953 | |
| 1954 | /** |
| 1955 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant |
| 1956 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered |
| 1957 | * with struct wpa_driver_ops::init() |
| 1958 | * @src_addr: Source address of the EAPOL frame |
| 1959 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) |
| 1960 | * @len: Length of the EAPOL data |
| 1961 | * |
| 1962 | * This function is called for each received EAPOL frame. Most driver |
| 1963 | * interfaces rely on more generic OS mechanism for receiving frames through |
| 1964 | * l2_packet, but if such a mechanism is not available, the driver wrapper may |
| 1965 | * take care of received EAPOL frames and deliver them to the core supplicant |
| 1966 | * code by calling this function. |
| 1967 | */ |
| 1968 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
| 1969 | const u8 *buf, size_t len) |
| 1970 | { |
| 1971 | struct wpa_supplicant *wpa_s = ctx; |
| 1972 | |
| 1973 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); |
| 1974 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); |
| 1975 | |
| 1976 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
| 1977 | /* |
| 1978 | * There is possible race condition between receiving the |
| 1979 | * association event and the EAPOL frame since they are coming |
| 1980 | * through different paths from the driver. In order to avoid |
| 1981 | * issues in trying to process the EAPOL frame before receiving |
| 1982 | * association information, lets queue it for processing until |
| 1983 | * the association event is received. |
| 1984 | */ |
| 1985 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " |
| 1986 | "of received EAPOL frame"); |
| 1987 | wpabuf_free(wpa_s->pending_eapol_rx); |
| 1988 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); |
| 1989 | if (wpa_s->pending_eapol_rx) { |
| 1990 | os_get_time(&wpa_s->pending_eapol_rx_time); |
| 1991 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, |
| 1992 | ETH_ALEN); |
| 1993 | } |
| 1994 | return; |
| 1995 | } |
| 1996 | |
| 1997 | #ifdef CONFIG_AP |
| 1998 | if (wpa_s->ap_iface) { |
| 1999 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); |
| 2000 | return; |
| 2001 | } |
| 2002 | #endif /* CONFIG_AP */ |
| 2003 | |
| 2004 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
| 2005 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " |
| 2006 | "no key management is configured"); |
| 2007 | return; |
| 2008 | } |
| 2009 | |
| 2010 | if (wpa_s->eapol_received == 0 && |
| 2011 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
| 2012 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
| 2013 | wpa_s->wpa_state != WPA_COMPLETED) && |
| 2014 | (wpa_s->current_ssid == NULL || |
| 2015 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { |
| 2016 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
| 2017 | wpa_supplicant_req_auth_timeout( |
| 2018 | wpa_s, |
| 2019 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
| 2020 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
| 2021 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? |
| 2022 | 70 : 10, 0); |
| 2023 | } |
| 2024 | wpa_s->eapol_received++; |
| 2025 | |
| 2026 | if (wpa_s->countermeasures) { |
| 2027 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " |
| 2028 | "EAPOL packet"); |
| 2029 | return; |
| 2030 | } |
| 2031 | |
| 2032 | #ifdef CONFIG_IBSS_RSN |
| 2033 | if (wpa_s->current_ssid && |
| 2034 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
| 2035 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
| 2036 | return; |
| 2037 | } |
| 2038 | #endif /* CONFIG_IBSS_RSN */ |
| 2039 | |
| 2040 | /* Source address of the incoming EAPOL frame could be compared to the |
| 2041 | * current BSSID. However, it is possible that a centralized |
| 2042 | * Authenticator could be using another MAC address than the BSSID of |
| 2043 | * an AP, so just allow any address to be used for now. The replies are |
| 2044 | * still sent to the current BSSID (if available), though. */ |
| 2045 | |
| 2046 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); |
| 2047 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
| 2048 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
| 2049 | return; |
| 2050 | wpa_drv_poll(wpa_s); |
| 2051 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
| 2052 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
| 2053 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
| 2054 | /* |
| 2055 | * Set portValid = TRUE here since we are going to skip 4-way |
| 2056 | * handshake processing which would normally set portValid. We |
| 2057 | * need this to allow the EAPOL state machines to be completed |
| 2058 | * without going through EAPOL-Key handshake. |
| 2059 | */ |
| 2060 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); |
| 2061 | } |
| 2062 | } |
| 2063 | |
| 2064 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2065 | int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2066 | { |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2067 | if (wpa_s->driver->send_eapol) { |
| 2068 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); |
| 2069 | if (addr) |
| 2070 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); |
| 2071 | } else if (!(wpa_s->drv_flags & |
| 2072 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2073 | l2_packet_deinit(wpa_s->l2); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2074 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, |
| 2075 | wpa_drv_get_mac_addr(wpa_s), |
| 2076 | ETH_P_EAPOL, |
| 2077 | wpa_supplicant_rx_eapol, wpa_s, 0); |
| 2078 | if (wpa_s->l2 == NULL) |
| 2079 | return -1; |
| 2080 | } else { |
| 2081 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); |
| 2082 | if (addr) |
| 2083 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); |
| 2084 | } |
| 2085 | |
| 2086 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { |
| 2087 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); |
| 2088 | return -1; |
| 2089 | } |
| 2090 | |
| 2091 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, |
| 2092 | MAC2STR(wpa_s->own_addr)); |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2093 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
| 2094 | |
| 2095 | return 0; |
| 2096 | } |
| 2097 | |
| 2098 | |
| 2099 | /** |
| 2100 | * wpa_supplicant_driver_init - Initialize driver interface parameters |
| 2101 | * @wpa_s: Pointer to wpa_supplicant data |
| 2102 | * Returns: 0 on success, -1 on failure |
| 2103 | * |
| 2104 | * This function is called to initialize driver interface parameters. |
| 2105 | * wpa_drv_init() must have been called before this function to initialize the |
| 2106 | * driver interface. |
| 2107 | */ |
| 2108 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) |
| 2109 | { |
| 2110 | static int interface_count = 0; |
| 2111 | |
| 2112 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) |
| 2113 | return -1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2114 | |
| 2115 | if (wpa_s->bridge_ifname[0]) { |
| 2116 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " |
| 2117 | "interface '%s'", wpa_s->bridge_ifname); |
| 2118 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, |
| 2119 | wpa_s->own_addr, |
| 2120 | ETH_P_EAPOL, |
| 2121 | wpa_supplicant_rx_eapol, wpa_s, |
| 2122 | 0); |
| 2123 | if (wpa_s->l2_br == NULL) { |
| 2124 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " |
| 2125 | "connection for the bridge interface '%s'", |
| 2126 | wpa_s->bridge_ifname); |
| 2127 | return -1; |
| 2128 | } |
| 2129 | } |
| 2130 | |
| 2131 | wpa_clear_keys(wpa_s, NULL); |
| 2132 | |
| 2133 | /* Make sure that TKIP countermeasures are not left enabled (could |
| 2134 | * happen if wpa_supplicant is killed during countermeasures. */ |
| 2135 | wpa_drv_set_countermeasures(wpa_s, 0); |
| 2136 | |
| 2137 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
| 2138 | wpa_drv_flush_pmkid(wpa_s); |
| 2139 | |
| 2140 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
| 2141 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2142 | if (wpa_supplicant_delayed_sched_scan(wpa_s, interface_count, |
| 2143 | 100000)) |
| 2144 | wpa_supplicant_req_scan(wpa_s, interface_count, |
| 2145 | 100000); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2146 | interface_count++; |
| 2147 | } else |
| 2148 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); |
| 2149 | |
| 2150 | return 0; |
| 2151 | } |
| 2152 | |
| 2153 | |
| 2154 | static int wpa_supplicant_daemon(const char *pid_file) |
| 2155 | { |
| 2156 | wpa_printf(MSG_DEBUG, "Daemonize.."); |
| 2157 | return os_daemonize(pid_file); |
| 2158 | } |
| 2159 | |
| 2160 | |
| 2161 | static struct wpa_supplicant * wpa_supplicant_alloc(void) |
| 2162 | { |
| 2163 | struct wpa_supplicant *wpa_s; |
| 2164 | |
| 2165 | wpa_s = os_zalloc(sizeof(*wpa_s)); |
| 2166 | if (wpa_s == NULL) |
| 2167 | return NULL; |
| 2168 | wpa_s->scan_req = 1; |
| 2169 | wpa_s->scan_interval = 5; |
| 2170 | wpa_s->new_connection = 1; |
| 2171 | wpa_s->parent = wpa_s; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2172 | wpa_s->sched_scanning = 0; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2173 | |
| 2174 | return wpa_s; |
| 2175 | } |
| 2176 | |
| 2177 | |
| 2178 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, |
| 2179 | struct wpa_interface *iface) |
| 2180 | { |
| 2181 | const char *ifname, *driver; |
| 2182 | struct wpa_driver_capa capa; |
| 2183 | |
| 2184 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
| 2185 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, |
| 2186 | iface->confname ? iface->confname : "N/A", |
| 2187 | iface->driver ? iface->driver : "default", |
| 2188 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", |
| 2189 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); |
| 2190 | |
| 2191 | if (iface->confname) { |
| 2192 | #ifdef CONFIG_BACKEND_FILE |
| 2193 | wpa_s->confname = os_rel2abs_path(iface->confname); |
| 2194 | if (wpa_s->confname == NULL) { |
| 2195 | wpa_printf(MSG_ERROR, "Failed to get absolute path " |
| 2196 | "for configuration file '%s'.", |
| 2197 | iface->confname); |
| 2198 | return -1; |
| 2199 | } |
| 2200 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", |
| 2201 | iface->confname, wpa_s->confname); |
| 2202 | #else /* CONFIG_BACKEND_FILE */ |
| 2203 | wpa_s->confname = os_strdup(iface->confname); |
| 2204 | #endif /* CONFIG_BACKEND_FILE */ |
| 2205 | wpa_s->conf = wpa_config_read(wpa_s->confname); |
| 2206 | if (wpa_s->conf == NULL) { |
| 2207 | wpa_printf(MSG_ERROR, "Failed to read or parse " |
| 2208 | "configuration '%s'.", wpa_s->confname); |
| 2209 | return -1; |
| 2210 | } |
| 2211 | |
| 2212 | /* |
| 2213 | * Override ctrl_interface and driver_param if set on command |
| 2214 | * line. |
| 2215 | */ |
| 2216 | if (iface->ctrl_interface) { |
| 2217 | os_free(wpa_s->conf->ctrl_interface); |
| 2218 | wpa_s->conf->ctrl_interface = |
| 2219 | os_strdup(iface->ctrl_interface); |
| 2220 | } |
| 2221 | |
| 2222 | if (iface->driver_param) { |
| 2223 | os_free(wpa_s->conf->driver_param); |
| 2224 | wpa_s->conf->driver_param = |
| 2225 | os_strdup(iface->driver_param); |
| 2226 | } |
| 2227 | } else |
| 2228 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, |
| 2229 | iface->driver_param); |
| 2230 | |
| 2231 | if (wpa_s->conf == NULL) { |
| 2232 | wpa_printf(MSG_ERROR, "\nNo configuration found."); |
| 2233 | return -1; |
| 2234 | } |
| 2235 | |
| 2236 | if (iface->ifname == NULL) { |
| 2237 | wpa_printf(MSG_ERROR, "\nInterface name is required."); |
| 2238 | return -1; |
| 2239 | } |
| 2240 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { |
| 2241 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", |
| 2242 | iface->ifname); |
| 2243 | return -1; |
| 2244 | } |
| 2245 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); |
| 2246 | |
| 2247 | if (iface->bridge_ifname) { |
| 2248 | if (os_strlen(iface->bridge_ifname) >= |
| 2249 | sizeof(wpa_s->bridge_ifname)) { |
| 2250 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " |
| 2251 | "name '%s'.", iface->bridge_ifname); |
| 2252 | return -1; |
| 2253 | } |
| 2254 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, |
| 2255 | sizeof(wpa_s->bridge_ifname)); |
| 2256 | } |
| 2257 | |
| 2258 | /* RSNA Supplicant Key Management - INITIALIZE */ |
| 2259 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); |
| 2260 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); |
| 2261 | |
| 2262 | /* Initialize driver interface and register driver event handler before |
| 2263 | * L2 receive handler so that association events are processed before |
| 2264 | * EAPOL-Key packets if both become available for the same select() |
| 2265 | * call. */ |
| 2266 | driver = iface->driver; |
| 2267 | next_driver: |
| 2268 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) |
| 2269 | return -1; |
| 2270 | |
| 2271 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
| 2272 | if (wpa_s->drv_priv == NULL) { |
| 2273 | const char *pos; |
| 2274 | pos = driver ? os_strchr(driver, ',') : NULL; |
| 2275 | if (pos) { |
| 2276 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
| 2277 | "driver interface - try next driver wrapper"); |
| 2278 | driver = pos + 1; |
| 2279 | goto next_driver; |
| 2280 | } |
| 2281 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " |
| 2282 | "interface"); |
| 2283 | return -1; |
| 2284 | } |
| 2285 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { |
| 2286 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " |
| 2287 | "driver_param '%s'", wpa_s->conf->driver_param); |
| 2288 | return -1; |
| 2289 | } |
| 2290 | |
| 2291 | ifname = wpa_drv_get_ifname(wpa_s); |
| 2292 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { |
| 2293 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " |
| 2294 | "interface name with '%s'", ifname); |
| 2295 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); |
| 2296 | } |
| 2297 | |
| 2298 | if (wpa_supplicant_init_wpa(wpa_s) < 0) |
| 2299 | return -1; |
| 2300 | |
| 2301 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, |
| 2302 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : |
| 2303 | NULL); |
| 2304 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); |
| 2305 | |
| 2306 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && |
| 2307 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, |
| 2308 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { |
| 2309 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
| 2310 | "dot11RSNAConfigPMKLifetime"); |
| 2311 | return -1; |
| 2312 | } |
| 2313 | |
| 2314 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && |
| 2315 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, |
| 2316 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { |
| 2317 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
| 2318 | "dot11RSNAConfigPMKReauthThreshold"); |
| 2319 | return -1; |
| 2320 | } |
| 2321 | |
| 2322 | if (wpa_s->conf->dot11RSNAConfigSATimeout && |
| 2323 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, |
| 2324 | wpa_s->conf->dot11RSNAConfigSATimeout)) { |
| 2325 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
| 2326 | "dot11RSNAConfigSATimeout"); |
| 2327 | return -1; |
| 2328 | } |
| 2329 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2330 | wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, |
| 2331 | &wpa_s->hw.num_modes, |
| 2332 | &wpa_s->hw.flags); |
| 2333 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2334 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2335 | wpa_s->drv_capa_known = 1; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2336 | wpa_s->drv_flags = capa.flags; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2337 | wpa_s->probe_resp_offloads = capa.probe_resp_offloads; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2338 | wpa_s->max_scan_ssids = capa.max_scan_ssids; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2339 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; |
| 2340 | wpa_s->sched_scan_supported = capa.sched_scan_supported; |
| 2341 | wpa_s->max_match_sets = capa.max_match_sets; |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2342 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; |
| 2343 | wpa_s->max_stations = capa.max_stations; |
| 2344 | } |
| 2345 | if (wpa_s->max_remain_on_chan == 0) |
| 2346 | wpa_s->max_remain_on_chan = 1000; |
| 2347 | |
| 2348 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
| 2349 | return -1; |
| 2350 | |
| 2351 | #ifdef CONFIG_TDLS |
| 2352 | if (wpa_tdls_init(wpa_s->wpa)) |
| 2353 | return -1; |
| 2354 | #endif /* CONFIG_TDLS */ |
| 2355 | |
| 2356 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
| 2357 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { |
| 2358 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); |
| 2359 | return -1; |
| 2360 | } |
| 2361 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2362 | if (wpas_wps_init(wpa_s)) |
| 2363 | return -1; |
| 2364 | |
| 2365 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
| 2366 | return -1; |
| 2367 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); |
| 2368 | |
| 2369 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); |
| 2370 | if (wpa_s->ctrl_iface == NULL) { |
| 2371 | wpa_printf(MSG_ERROR, |
| 2372 | "Failed to initialize control interface '%s'.\n" |
| 2373 | "You may have another wpa_supplicant process " |
| 2374 | "already running or the file was\n" |
| 2375 | "left by an unclean termination of wpa_supplicant " |
| 2376 | "in which case you will need\n" |
| 2377 | "to manually remove this file before starting " |
| 2378 | "wpa_supplicant again.\n", |
| 2379 | wpa_s->conf->ctrl_interface); |
| 2380 | return -1; |
| 2381 | } |
| 2382 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2383 | wpa_s->gas = gas_query_init(wpa_s); |
| 2384 | if (wpa_s->gas == NULL) { |
| 2385 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); |
| 2386 | return -1; |
| 2387 | } |
| 2388 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2389 | #ifdef CONFIG_P2P |
| 2390 | if (wpas_p2p_init(wpa_s->global, wpa_s) < 0) { |
| 2391 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); |
| 2392 | return -1; |
| 2393 | } |
| 2394 | #endif /* CONFIG_P2P */ |
| 2395 | |
| 2396 | if (wpa_bss_init(wpa_s) < 0) |
| 2397 | return -1; |
| 2398 | |
| 2399 | return 0; |
| 2400 | } |
| 2401 | |
| 2402 | |
| 2403 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2404 | int notify, int terminate) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2405 | { |
| 2406 | if (wpa_s->drv_priv) { |
| 2407 | wpa_supplicant_deauthenticate(wpa_s, |
| 2408 | WLAN_REASON_DEAUTH_LEAVING); |
| 2409 | |
| 2410 | wpa_drv_set_countermeasures(wpa_s, 0); |
| 2411 | wpa_clear_keys(wpa_s, NULL); |
| 2412 | } |
| 2413 | |
| 2414 | wpa_supplicant_cleanup(wpa_s); |
| 2415 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2416 | if (wpa_s->drv_priv) |
| 2417 | wpa_drv_deinit(wpa_s); |
Irfan Sheriff | 622b66d | 2011-08-03 09:11:49 -0700 | [diff] [blame] | 2418 | |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2419 | if (notify) |
| 2420 | wpas_notify_iface_removed(wpa_s); |
| 2421 | |
Irfan Sheriff | 622b66d | 2011-08-03 09:11:49 -0700 | [diff] [blame] | 2422 | /** |
| 2423 | * The wpa_drv_deinit call after sending TERMINATING to the framework causes |
| 2424 | * race condition with the start of hostapd. |
| 2425 | * This has been moved out of wpa_supplicant_cleanup(). Send the control |
| 2426 | * message and free config after the deinit. |
| 2427 | */ |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2428 | if (terminate) |
| 2429 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING); |
Irfan Sheriff | 622b66d | 2011-08-03 09:11:49 -0700 | [diff] [blame] | 2430 | |
| 2431 | if (wpa_s->ctrl_iface) { |
| 2432 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); |
| 2433 | wpa_s->ctrl_iface = NULL; |
| 2434 | } |
| 2435 | |
| 2436 | if (wpa_s->conf != NULL) { |
Irfan Sheriff | 622b66d | 2011-08-03 09:11:49 -0700 | [diff] [blame] | 2437 | wpa_config_free(wpa_s->conf); |
| 2438 | wpa_s->conf = NULL; |
| 2439 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2440 | } |
| 2441 | |
| 2442 | |
| 2443 | /** |
| 2444 | * wpa_supplicant_add_iface - Add a new network interface |
| 2445 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2446 | * @iface: Interface configuration options |
| 2447 | * Returns: Pointer to the created interface or %NULL on failure |
| 2448 | * |
| 2449 | * This function is used to add new network interfaces for %wpa_supplicant. |
| 2450 | * This can be called before wpa_supplicant_run() to add interfaces before the |
| 2451 | * main event loop has been started. In addition, new interfaces can be added |
| 2452 | * dynamically while %wpa_supplicant is already running. This could happen, |
| 2453 | * e.g., when a hotplug network adapter is inserted. |
| 2454 | */ |
| 2455 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, |
| 2456 | struct wpa_interface *iface) |
| 2457 | { |
| 2458 | struct wpa_supplicant *wpa_s; |
| 2459 | struct wpa_interface t_iface; |
| 2460 | struct wpa_ssid *ssid; |
| 2461 | |
| 2462 | if (global == NULL || iface == NULL) |
| 2463 | return NULL; |
| 2464 | |
| 2465 | wpa_s = wpa_supplicant_alloc(); |
| 2466 | if (wpa_s == NULL) |
| 2467 | return NULL; |
| 2468 | |
| 2469 | wpa_s->global = global; |
| 2470 | |
| 2471 | t_iface = *iface; |
| 2472 | if (global->params.override_driver) { |
| 2473 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " |
| 2474 | "('%s' -> '%s')", |
| 2475 | iface->driver, global->params.override_driver); |
| 2476 | t_iface.driver = global->params.override_driver; |
| 2477 | } |
| 2478 | if (global->params.override_ctrl_interface) { |
| 2479 | wpa_printf(MSG_DEBUG, "Override interface parameter: " |
| 2480 | "ctrl_interface ('%s' -> '%s')", |
| 2481 | iface->ctrl_interface, |
| 2482 | global->params.override_ctrl_interface); |
| 2483 | t_iface.ctrl_interface = |
| 2484 | global->params.override_ctrl_interface; |
| 2485 | } |
| 2486 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { |
| 2487 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
| 2488 | iface->ifname); |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2489 | wpa_supplicant_deinit_iface(wpa_s, 0, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2490 | os_free(wpa_s); |
| 2491 | return NULL; |
| 2492 | } |
| 2493 | |
| 2494 | /* Notify the control interfaces about new iface */ |
| 2495 | if (wpas_notify_iface_added(wpa_s)) { |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2496 | wpa_supplicant_deinit_iface(wpa_s, 1, 0); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2497 | os_free(wpa_s); |
| 2498 | return NULL; |
| 2499 | } |
| 2500 | |
| 2501 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
| 2502 | wpas_notify_network_added(wpa_s, ssid); |
| 2503 | |
| 2504 | wpa_s->next = global->ifaces; |
| 2505 | global->ifaces = wpa_s; |
| 2506 | |
| 2507 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); |
| 2508 | |
| 2509 | return wpa_s; |
| 2510 | } |
| 2511 | |
| 2512 | |
| 2513 | /** |
| 2514 | * wpa_supplicant_remove_iface - Remove a network interface |
| 2515 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2516 | * @wpa_s: Pointer to the network interface to be removed |
| 2517 | * Returns: 0 if interface was removed, -1 if interface was not found |
| 2518 | * |
| 2519 | * This function can be used to dynamically remove network interfaces from |
| 2520 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In |
| 2521 | * addition, this function is used to remove all remaining interfaces when |
| 2522 | * %wpa_supplicant is terminated. |
| 2523 | */ |
| 2524 | int wpa_supplicant_remove_iface(struct wpa_global *global, |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2525 | struct wpa_supplicant *wpa_s, |
| 2526 | int terminate) |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2527 | { |
| 2528 | struct wpa_supplicant *prev; |
| 2529 | |
| 2530 | /* Remove interface from the global list of interfaces */ |
| 2531 | prev = global->ifaces; |
| 2532 | if (prev == wpa_s) { |
| 2533 | global->ifaces = wpa_s->next; |
| 2534 | } else { |
| 2535 | while (prev && prev->next != wpa_s) |
| 2536 | prev = prev->next; |
| 2537 | if (prev == NULL) |
| 2538 | return -1; |
| 2539 | prev->next = wpa_s->next; |
| 2540 | } |
| 2541 | |
| 2542 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); |
| 2543 | |
| 2544 | if (global->p2p_group_formation == wpa_s) |
| 2545 | global->p2p_group_formation = NULL; |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2546 | wpa_supplicant_deinit_iface(wpa_s, 1, terminate); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2547 | os_free(wpa_s); |
| 2548 | |
| 2549 | return 0; |
| 2550 | } |
| 2551 | |
| 2552 | |
| 2553 | /** |
| 2554 | * wpa_supplicant_get_eap_mode - Get the current EAP mode |
| 2555 | * @wpa_s: Pointer to the network interface |
| 2556 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found |
| 2557 | */ |
| 2558 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) |
| 2559 | { |
| 2560 | const char *eapol_method; |
| 2561 | |
| 2562 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && |
| 2563 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { |
| 2564 | return "NO-EAP"; |
| 2565 | } |
| 2566 | |
| 2567 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); |
| 2568 | if (eapol_method == NULL) |
| 2569 | return "UNKNOWN-EAP"; |
| 2570 | |
| 2571 | return eapol_method; |
| 2572 | } |
| 2573 | |
| 2574 | |
| 2575 | /** |
| 2576 | * wpa_supplicant_get_iface - Get a new network interface |
| 2577 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2578 | * @ifname: Interface name |
| 2579 | * Returns: Pointer to the interface or %NULL if not found |
| 2580 | */ |
| 2581 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, |
| 2582 | const char *ifname) |
| 2583 | { |
| 2584 | struct wpa_supplicant *wpa_s; |
| 2585 | |
| 2586 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
| 2587 | if (os_strcmp(wpa_s->ifname, ifname) == 0) |
| 2588 | return wpa_s; |
| 2589 | } |
| 2590 | return NULL; |
| 2591 | } |
| 2592 | |
| 2593 | |
| 2594 | #ifndef CONFIG_NO_WPA_MSG |
| 2595 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) |
| 2596 | { |
| 2597 | struct wpa_supplicant *wpa_s = ctx; |
| 2598 | if (wpa_s == NULL) |
| 2599 | return NULL; |
| 2600 | return wpa_s->ifname; |
| 2601 | } |
| 2602 | #endif /* CONFIG_NO_WPA_MSG */ |
| 2603 | |
| 2604 | |
| 2605 | /** |
| 2606 | * wpa_supplicant_init - Initialize %wpa_supplicant |
| 2607 | * @params: Parameters for %wpa_supplicant |
| 2608 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure |
| 2609 | * |
| 2610 | * This function is used to initialize %wpa_supplicant. After successful |
| 2611 | * initialization, the returned data pointer can be used to add and remove |
| 2612 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. |
| 2613 | */ |
| 2614 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) |
| 2615 | { |
| 2616 | struct wpa_global *global; |
| 2617 | int ret, i; |
| 2618 | |
| 2619 | if (params == NULL) |
| 2620 | return NULL; |
| 2621 | |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2622 | #ifdef CONFIG_DRIVER_NDIS |
| 2623 | { |
| 2624 | void driver_ndis_init_ops(void); |
| 2625 | driver_ndis_init_ops(); |
| 2626 | } |
| 2627 | #endif /* CONFIG_DRIVER_NDIS */ |
| 2628 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2629 | #ifndef CONFIG_NO_WPA_MSG |
| 2630 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); |
| 2631 | #endif /* CONFIG_NO_WPA_MSG */ |
| 2632 | |
| 2633 | wpa_debug_open_file(params->wpa_debug_file_path); |
| 2634 | if (params->wpa_debug_syslog) |
| 2635 | wpa_debug_open_syslog(); |
| 2636 | |
| 2637 | ret = eap_register_methods(); |
| 2638 | if (ret) { |
| 2639 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); |
| 2640 | if (ret == -2) |
| 2641 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " |
| 2642 | "the same EAP type."); |
| 2643 | return NULL; |
| 2644 | } |
| 2645 | |
| 2646 | global = os_zalloc(sizeof(*global)); |
| 2647 | if (global == NULL) |
| 2648 | return NULL; |
| 2649 | dl_list_init(&global->p2p_srv_bonjour); |
| 2650 | dl_list_init(&global->p2p_srv_upnp); |
| 2651 | global->params.daemonize = params->daemonize; |
| 2652 | global->params.wait_for_monitor = params->wait_for_monitor; |
| 2653 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; |
| 2654 | if (params->pid_file) |
| 2655 | global->params.pid_file = os_strdup(params->pid_file); |
| 2656 | if (params->ctrl_interface) |
| 2657 | global->params.ctrl_interface = |
| 2658 | os_strdup(params->ctrl_interface); |
| 2659 | if (params->override_driver) |
| 2660 | global->params.override_driver = |
| 2661 | os_strdup(params->override_driver); |
| 2662 | if (params->override_ctrl_interface) |
| 2663 | global->params.override_ctrl_interface = |
| 2664 | os_strdup(params->override_ctrl_interface); |
| 2665 | wpa_debug_level = global->params.wpa_debug_level = |
| 2666 | params->wpa_debug_level; |
| 2667 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = |
| 2668 | params->wpa_debug_show_keys; |
| 2669 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = |
| 2670 | params->wpa_debug_timestamp; |
| 2671 | |
| 2672 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); |
| 2673 | |
| 2674 | if (eloop_init()) { |
| 2675 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
| 2676 | wpa_supplicant_deinit(global); |
| 2677 | return NULL; |
| 2678 | } |
| 2679 | |
Jouni Malinen | 75ecf52 | 2011-06-27 15:19:46 -0700 | [diff] [blame] | 2680 | random_init(params->entropy_file); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2681 | |
| 2682 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); |
| 2683 | if (global->ctrl_iface == NULL) { |
| 2684 | wpa_supplicant_deinit(global); |
| 2685 | return NULL; |
| 2686 | } |
| 2687 | |
| 2688 | if (wpas_notify_supplicant_initialized(global)) { |
| 2689 | wpa_supplicant_deinit(global); |
| 2690 | return NULL; |
| 2691 | } |
| 2692 | |
| 2693 | for (i = 0; wpa_drivers[i]; i++) |
| 2694 | global->drv_count++; |
| 2695 | if (global->drv_count == 0) { |
| 2696 | wpa_printf(MSG_ERROR, "No drivers enabled"); |
| 2697 | wpa_supplicant_deinit(global); |
| 2698 | return NULL; |
| 2699 | } |
| 2700 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); |
| 2701 | if (global->drv_priv == NULL) { |
| 2702 | wpa_supplicant_deinit(global); |
| 2703 | return NULL; |
| 2704 | } |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2705 | |
| 2706 | return global; |
| 2707 | } |
| 2708 | |
| 2709 | |
| 2710 | /** |
| 2711 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop |
| 2712 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2713 | * Returns: 0 after successful event loop run, -1 on failure |
| 2714 | * |
| 2715 | * This function starts the main event loop and continues running as long as |
| 2716 | * there are any remaining events. In most cases, this function is running as |
| 2717 | * long as the %wpa_supplicant process in still in use. |
| 2718 | */ |
| 2719 | int wpa_supplicant_run(struct wpa_global *global) |
| 2720 | { |
| 2721 | struct wpa_supplicant *wpa_s; |
| 2722 | |
| 2723 | if (global->params.daemonize && |
| 2724 | wpa_supplicant_daemon(global->params.pid_file)) |
| 2725 | return -1; |
| 2726 | |
| 2727 | if (global->params.wait_for_monitor) { |
| 2728 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) |
| 2729 | if (wpa_s->ctrl_iface) |
| 2730 | wpa_supplicant_ctrl_iface_wait( |
| 2731 | wpa_s->ctrl_iface); |
| 2732 | } |
| 2733 | |
| 2734 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
| 2735 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); |
| 2736 | |
| 2737 | eloop_run(); |
| 2738 | |
| 2739 | return 0; |
| 2740 | } |
| 2741 | |
| 2742 | |
| 2743 | /** |
| 2744 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant |
| 2745 | * @global: Pointer to global data from wpa_supplicant_init() |
| 2746 | * |
| 2747 | * This function is called to deinitialize %wpa_supplicant and to free all |
| 2748 | * allocated resources. Remaining network interfaces will also be removed. |
| 2749 | */ |
| 2750 | void wpa_supplicant_deinit(struct wpa_global *global) |
| 2751 | { |
| 2752 | int i; |
| 2753 | |
| 2754 | if (global == NULL) |
| 2755 | return; |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2756 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2757 | #ifdef CONFIG_P2P |
| 2758 | wpas_p2p_deinit_global(global); |
| 2759 | #endif /* CONFIG_P2P */ |
| 2760 | |
| 2761 | while (global->ifaces) |
Dmitry Shmidt | e15c7b5 | 2011-08-03 15:04:35 -0700 | [diff] [blame] | 2762 | wpa_supplicant_remove_iface(global, global->ifaces, 1); |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2763 | |
| 2764 | if (global->ctrl_iface) |
| 2765 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); |
| 2766 | |
| 2767 | wpas_notify_supplicant_deinitialized(global); |
| 2768 | |
| 2769 | eap_peer_unregister_methods(); |
| 2770 | #ifdef CONFIG_AP |
| 2771 | eap_server_unregister_methods(); |
| 2772 | #endif /* CONFIG_AP */ |
| 2773 | |
| 2774 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
| 2775 | if (!global->drv_priv[i]) |
| 2776 | continue; |
| 2777 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
| 2778 | } |
| 2779 | os_free(global->drv_priv); |
| 2780 | |
| 2781 | random_deinit(); |
| 2782 | |
| 2783 | eloop_destroy(); |
| 2784 | |
| 2785 | if (global->params.pid_file) { |
| 2786 | os_daemonize_terminate(global->params.pid_file); |
| 2787 | os_free(global->params.pid_file); |
| 2788 | } |
| 2789 | os_free(global->params.ctrl_interface); |
| 2790 | os_free(global->params.override_driver); |
| 2791 | os_free(global->params.override_ctrl_interface); |
| 2792 | |
| 2793 | os_free(global); |
| 2794 | wpa_debug_close_syslog(); |
| 2795 | wpa_debug_close_file(); |
| 2796 | } |
| 2797 | |
| 2798 | |
| 2799 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) |
| 2800 | { |
| 2801 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && |
| 2802 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { |
| 2803 | char country[3]; |
| 2804 | country[0] = wpa_s->conf->country[0]; |
| 2805 | country[1] = wpa_s->conf->country[1]; |
| 2806 | country[2] = '\0'; |
| 2807 | if (wpa_drv_set_country(wpa_s, country) < 0) { |
| 2808 | wpa_printf(MSG_ERROR, "Failed to set country code " |
| 2809 | "'%s'", country); |
| 2810 | } |
| 2811 | } |
| 2812 | |
| 2813 | #ifdef CONFIG_WPS |
| 2814 | wpas_wps_update_config(wpa_s); |
| 2815 | #endif /* CONFIG_WPS */ |
| 2816 | |
| 2817 | #ifdef CONFIG_P2P |
| 2818 | wpas_p2p_update_config(wpa_s); |
| 2819 | #endif /* CONFIG_P2P */ |
| 2820 | |
| 2821 | wpa_s->conf->changed_parameters = 0; |
| 2822 | } |
| 2823 | |
| 2824 | |
Dmitry Shmidt | 8d520ff | 2011-05-09 14:06:53 -0700 | [diff] [blame] | 2825 | static void add_freq(int *freqs, int *num_freqs, int freq) |
| 2826 | { |
| 2827 | int i; |
| 2828 | |
| 2829 | for (i = 0; i < *num_freqs; i++) { |
| 2830 | if (freqs[i] == freq) |
| 2831 | return; |
| 2832 | } |
| 2833 | |
| 2834 | freqs[*num_freqs] = freq; |
| 2835 | (*num_freqs)++; |
| 2836 | } |
| 2837 | |
| 2838 | |
| 2839 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) |
| 2840 | { |
| 2841 | struct wpa_bss *bss, *cbss; |
| 2842 | const int max_freqs = 10; |
| 2843 | int *freqs; |
| 2844 | int num_freqs = 0; |
| 2845 | |
| 2846 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); |
| 2847 | if (freqs == NULL) |
| 2848 | return NULL; |
| 2849 | |
| 2850 | cbss = wpa_s->current_bss; |
| 2851 | |
| 2852 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { |
| 2853 | if (bss == cbss) |
| 2854 | continue; |
| 2855 | if (bss->ssid_len == cbss->ssid_len && |
| 2856 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && |
| 2857 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { |
| 2858 | add_freq(freqs, &num_freqs, bss->freq); |
| 2859 | if (num_freqs == max_freqs) |
| 2860 | break; |
| 2861 | } |
| 2862 | } |
| 2863 | |
| 2864 | if (num_freqs == 0) { |
| 2865 | os_free(freqs); |
| 2866 | freqs = NULL; |
| 2867 | } |
| 2868 | |
| 2869 | return freqs; |
| 2870 | } |
| 2871 | |
| 2872 | |
| 2873 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) |
| 2874 | { |
| 2875 | int timeout; |
| 2876 | int count; |
| 2877 | int *freqs = NULL; |
| 2878 | |
| 2879 | /* |
| 2880 | * Add the failed BSSID into the blacklist and speed up next scan |
| 2881 | * attempt if there could be other APs that could accept association. |
| 2882 | * The current blacklist count indicates how many times we have tried |
| 2883 | * connecting to this AP and multiple attempts mean that other APs are |
| 2884 | * either not available or has already been tried, so that we can start |
| 2885 | * increasing the delay here to avoid constant scanning. |
| 2886 | */ |
| 2887 | count = wpa_blacklist_add(wpa_s, bssid); |
| 2888 | if (count == 1 && wpa_s->current_bss) { |
| 2889 | /* |
| 2890 | * This BSS was not in the blacklist before. If there is |
| 2891 | * another BSS available for the same ESS, we should try that |
| 2892 | * next. Otherwise, we may as well try this one once more |
| 2893 | * before allowing other, likely worse, ESSes to be considered. |
| 2894 | */ |
| 2895 | freqs = get_bss_freqs_in_ess(wpa_s); |
| 2896 | if (freqs) { |
| 2897 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " |
| 2898 | "has been seen; try it next"); |
| 2899 | wpa_blacklist_add(wpa_s, bssid); |
| 2900 | /* |
| 2901 | * On the next scan, go through only the known channels |
| 2902 | * used in this ESS based on previous scans to speed up |
| 2903 | * common load balancing use case. |
| 2904 | */ |
| 2905 | os_free(wpa_s->next_scan_freqs); |
| 2906 | wpa_s->next_scan_freqs = freqs; |
| 2907 | } |
| 2908 | } |
| 2909 | |
| 2910 | switch (count) { |
| 2911 | case 1: |
| 2912 | timeout = 100; |
| 2913 | break; |
| 2914 | case 2: |
| 2915 | timeout = 500; |
| 2916 | break; |
| 2917 | case 3: |
| 2918 | timeout = 1000; |
| 2919 | break; |
| 2920 | default: |
| 2921 | timeout = 5000; |
| 2922 | } |
| 2923 | |
| 2924 | /* |
| 2925 | * TODO: if more than one possible AP is available in scan results, |
| 2926 | * could try the other ones before requesting a new scan. |
| 2927 | */ |
| 2928 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, |
| 2929 | 1000 * (timeout % 1000)); |
| 2930 | } |
Dmitry Shmidt | 1f69aa5 | 2012-01-24 16:10:04 -0800 | [diff] [blame^] | 2931 | |
| 2932 | |
| 2933 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) |
| 2934 | { |
| 2935 | return wpa_s->conf->ap_scan == 2 || |
| 2936 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); |
| 2937 | } |