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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant | |
9e074973 | 3 | * Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> |
6fc6879b JM |
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" | |
d47fa330 | 22 | #include "crypto/random.h" |
7d232e23 | 23 | #include "crypto/sha1.h" |
6fc6879b JM |
24 | #include "eapol_supp/eapol_supp_sm.h" |
25 | #include "eap_peer/eap.h" | |
3ec97afe | 26 | #include "eap_server/eap_methods.h" |
3acb5005 | 27 | #include "rsn_supp/wpa.h" |
6fc6879b | 28 | #include "eloop.h" |
6fc6879b JM |
29 | #include "config.h" |
30 | #include "l2_packet/l2_packet.h" | |
31 | #include "wpa_supplicant_i.h" | |
2d5b792d | 32 | #include "driver_i.h" |
6fc6879b | 33 | #include "ctrl_iface.h" |
6fc6879b | 34 | #include "pcsc_funcs.h" |
90973fb2 | 35 | #include "common/version.h" |
3acb5005 JM |
36 | #include "rsn_supp/preauth.h" |
37 | #include "rsn_supp/pmksa_cache.h" | |
90973fb2 | 38 | #include "common/wpa_ctrl.h" |
90973fb2 | 39 | #include "common/ieee802_11_defs.h" |
72044390 | 40 | #include "p2p/p2p.h" |
6fc6879b JM |
41 | #include "blacklist.h" |
42 | #include "wpas_glue.h" | |
116654ce | 43 | #include "wps_supplicant.h" |
11ef8d35 | 44 | #include "ibss_rsn.h" |
c2a04078 | 45 | #include "sme.h" |
04ea7b79 | 46 | #include "gas_query.h" |
1f1b62a0 | 47 | #include "ap.h" |
b22128ef | 48 | #include "p2p_supplicant.h" |
8bac466b | 49 | #include "notify.h" |
60b94c98 | 50 | #include "bgscan.h" |
83922c2d | 51 | #include "bss.h" |
9ba9fa07 | 52 | #include "scan.h" |
24f6497c | 53 | #include "offchannel.h" |
6fc6879b JM |
54 | |
55 | const char *wpa_supplicant_version = | |
56 | "wpa_supplicant v" VERSION_STR "\n" | |
9e074973 | 57 | "Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
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 | ||
6fc6879b JM |
123 | extern int wpa_debug_level; |
124 | extern int wpa_debug_show_keys; | |
125 | extern int wpa_debug_timestamp; | |
c5121837 | 126 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
127 | |
128 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 129 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
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; | |
0382097e | 138 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, |
da64c266 | 139 | i, i == ssid->wep_tx_keyidx, NULL, 0, |
6fc6879b JM |
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; | |
71934751 | 152 | enum wpa_alg alg; |
6fc6879b JM |
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 | ||
d7dcba70 | 158 | if (ssid->mode != WPAS_MODE_IBSS) { |
f049052b BG |
159 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " |
160 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
6fc6879b JM |
161 | return -1; |
162 | } | |
163 | ||
164 | if (!ssid->psk_set) { | |
f049052b BG |
165 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " |
166 | "WPA-None"); | |
6fc6879b JM |
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: | |
f049052b BG |
184 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " |
185 | "WPA-None", wpa_s->group_cipher); | |
6fc6879b JM |
186 | return -1; |
187 | } | |
188 | ||
189 | /* TODO: should actually remember the previously used seq#, both for TX | |
190 | * and RX from each STA.. */ | |
191 | ||
0382097e | 192 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); |
6fc6879b JM |
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; | |
a8e16edc | 200 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
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; | |
48b84f18 BG |
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); | |
6fc6879b JM |
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 | { | |
c2a04078 JM |
229 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
230 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
231 | return; |
232 | ||
f049052b | 233 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " |
6fc6879b JM |
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 | { | |
f049052b | 250 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); |
6fc6879b JM |
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 | ||
53895c3b | 269 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 270 | if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
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 | ||
0a40ec6a JM |
284 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
285 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
286 | ||
6fc6879b JM |
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 | ||
c2a04078 | 305 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 306 | eapol_conf.required_keys = 0; |
6fc6879b JM |
307 | } |
308 | if (wpa_s->conf) | |
309 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
310 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
311 | eapol_conf.eap_disabled = |
312 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
313 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
314 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
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 | ||
ad08c363 JM |
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) | |
6fc6879b JM |
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 | ||
6bf731e8 CL |
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 | ||
6fc6879b JM |
389 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) |
390 | { | |
60b94c98 | 391 | bgscan_deinit(wpa_s); |
6fc6879b JM |
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 | ||
403 | if (wpa_s->ctrl_iface) { | |
404 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
405 | wpa_s->ctrl_iface = NULL; | |
406 | } | |
407 | if (wpa_s->conf != NULL) { | |
8e56d189 JM |
408 | struct wpa_ssid *ssid; |
409 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
410 | wpas_notify_network_removed(wpa_s, ssid); | |
6fc6879b JM |
411 | wpa_config_free(wpa_s->conf); |
412 | wpa_s->conf = NULL; | |
413 | } | |
414 | ||
415 | os_free(wpa_s->confname); | |
416 | wpa_s->confname = NULL; | |
417 | ||
418 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
419 | eapol_sm_deinit(wpa_s->eapol); | |
420 | wpa_s->eapol = NULL; | |
421 | ||
422 | rsn_preauth_deinit(wpa_s->wpa); | |
423 | ||
281ff0aa GP |
424 | #ifdef CONFIG_TDLS |
425 | wpa_tdls_deinit(wpa_s->wpa); | |
426 | #endif /* CONFIG_TDLS */ | |
427 | ||
6fc6879b JM |
428 | pmksa_candidate_free(wpa_s->wpa); |
429 | wpa_sm_deinit(wpa_s->wpa); | |
430 | wpa_s->wpa = NULL; | |
431 | wpa_blacklist_clear(wpa_s); | |
432 | ||
83922c2d | 433 | wpa_bss_deinit(wpa_s); |
6fc6879b JM |
434 | |
435 | wpa_supplicant_cancel_scan(wpa_s); | |
436 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
01a17491 JM |
437 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); |
438 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
439 | eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, | |
440 | wpa_s, NULL); | |
441 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
6fc6879b | 442 | |
116654ce | 443 | wpas_wps_deinit(wpa_s); |
11ef8d35 | 444 | |
1ff73338 JM |
445 | wpabuf_free(wpa_s->pending_eapol_rx); |
446 | wpa_s->pending_eapol_rx = NULL; | |
447 | ||
11ef8d35 JM |
448 | #ifdef CONFIG_IBSS_RSN |
449 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
450 | wpa_s->ibss_rsn = NULL; | |
451 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 | 452 | |
e29853bb | 453 | sme_deinit(wpa_s); |
2d5b792d JM |
454 | |
455 | #ifdef CONFIG_AP | |
456 | wpa_supplicant_ap_deinit(wpa_s); | |
457 | #endif /* CONFIG_AP */ | |
b22128ef JM |
458 | |
459 | #ifdef CONFIG_P2P | |
460 | wpas_p2p_deinit(wpa_s); | |
461 | #endif /* CONFIG_P2P */ | |
f47d639d | 462 | |
24f6497c JM |
463 | #ifdef CONFIG_OFFCHANNEL |
464 | offchannel_deinit(wpa_s); | |
465 | #endif /* CONFIG_OFFCHANNEL */ | |
466 | ||
a4cba8f1 LC |
467 | wpa_supplicant_cancel_sched_scan(wpa_s); |
468 | ||
f47d639d JM |
469 | os_free(wpa_s->next_scan_freqs); |
470 | wpa_s->next_scan_freqs = NULL; | |
04ea7b79 JM |
471 | |
472 | gas_query_deinit(wpa_s->gas); | |
473 | wpa_s->gas = NULL; | |
6bf731e8 CL |
474 | |
475 | free_hw_features(wpa_s); | |
6fc6879b JM |
476 | } |
477 | ||
478 | ||
479 | /** | |
480 | * wpa_clear_keys - Clear keys configured for the driver | |
481 | * @wpa_s: Pointer to wpa_supplicant data | |
482 | * @addr: Previously used BSSID or %NULL if not available | |
483 | * | |
484 | * This function clears the encryption keys that has been previously configured | |
485 | * for the driver. | |
486 | */ | |
487 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
488 | { | |
6fc6879b JM |
489 | if (wpa_s->keys_cleared) { |
490 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
491 | * timing issues with keys being cleared just before new keys | |
492 | * are set or just after association or something similar. This | |
493 | * shows up in group key handshake failing often because of the | |
494 | * client not receiving the first encrypted packets correctly. | |
495 | * Skipping some of the extra key clearing steps seems to help | |
496 | * in completing group key handshake more reliably. */ | |
f049052b BG |
497 | wpa_dbg(wpa_s, MSG_DEBUG, "No keys have been configured - " |
498 | "skip key clearing"); | |
6fc6879b JM |
499 | return; |
500 | } | |
501 | ||
502 | /* MLME-DELETEKEYS.request */ | |
0382097e JM |
503 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 0, 0, NULL, 0, NULL, 0); |
504 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 1, 0, NULL, 0, NULL, 0); | |
505 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 2, 0, NULL, 0, NULL, 0); | |
506 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 | 507 | #ifdef CONFIG_IEEE80211W |
0382097e JM |
508 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 4, 0, NULL, 0, NULL, 0); |
509 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 5, 0, NULL, 0, NULL, 0); | |
0e27f655 | 510 | #endif /* CONFIG_IEEE80211W */ |
6fc6879b JM |
511 | if (addr) { |
512 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
513 | 0); | |
514 | /* MLME-SETPROTECTION.request(None) */ | |
515 | wpa_drv_mlme_setprotection( | |
516 | wpa_s, addr, | |
517 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
518 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
519 | } | |
520 | wpa_s->keys_cleared = 1; | |
521 | } | |
522 | ||
523 | ||
524 | /** | |
525 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
526 | * @state: State (wpa_state; WPA_*) | |
527 | * Returns: The state name as a printable text string | |
528 | */ | |
71934751 | 529 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
6fc6879b JM |
530 | { |
531 | switch (state) { | |
532 | case WPA_DISCONNECTED: | |
533 | return "DISCONNECTED"; | |
534 | case WPA_INACTIVE: | |
535 | return "INACTIVE"; | |
8401a6b0 JM |
536 | case WPA_INTERFACE_DISABLED: |
537 | return "INTERFACE_DISABLED"; | |
6fc6879b JM |
538 | case WPA_SCANNING: |
539 | return "SCANNING"; | |
c2a04078 JM |
540 | case WPA_AUTHENTICATING: |
541 | return "AUTHENTICATING"; | |
6fc6879b JM |
542 | case WPA_ASSOCIATING: |
543 | return "ASSOCIATING"; | |
544 | case WPA_ASSOCIATED: | |
545 | return "ASSOCIATED"; | |
546 | case WPA_4WAY_HANDSHAKE: | |
547 | return "4WAY_HANDSHAKE"; | |
548 | case WPA_GROUP_HANDSHAKE: | |
549 | return "GROUP_HANDSHAKE"; | |
550 | case WPA_COMPLETED: | |
551 | return "COMPLETED"; | |
552 | default: | |
553 | return "UNKNOWN"; | |
554 | } | |
555 | } | |
556 | ||
557 | ||
cfe53c9a PS |
558 | #ifdef CONFIG_BGSCAN |
559 | ||
560 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
561 | { | |
0096c427 JM |
562 | if (wpas_driver_bss_selection(wpa_s)) |
563 | return; | |
cfe53c9a PS |
564 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) |
565 | return; | |
566 | ||
567 | bgscan_deinit(wpa_s); | |
568 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { | |
569 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { | |
570 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
571 | "bgscan"); | |
572 | /* | |
573 | * Live without bgscan; it is only used as a roaming | |
574 | * optimization, so the initial connection is not | |
575 | * affected. | |
576 | */ | |
577 | } else | |
578 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
579 | } else | |
580 | wpa_s->bgscan_ssid = NULL; | |
581 | } | |
582 | ||
583 | ||
584 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
585 | { | |
586 | if (wpa_s->bgscan_ssid != NULL) { | |
587 | bgscan_deinit(wpa_s); | |
588 | wpa_s->bgscan_ssid = NULL; | |
589 | } | |
590 | } | |
591 | ||
592 | #endif /* CONFIG_BGSCAN */ | |
593 | ||
594 | ||
6fc6879b JM |
595 | /** |
596 | * wpa_supplicant_set_state - Set current connection state | |
597 | * @wpa_s: Pointer to wpa_supplicant data | |
598 | * @state: The new connection state | |
599 | * | |
600 | * This function is called whenever the connection state changes, e.g., | |
601 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
602 | */ | |
71934751 JM |
603 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
604 | enum wpa_states state) | |
6fc6879b | 605 | { |
27f43d8d MH |
606 | enum wpa_states old_state = wpa_s->wpa_state; |
607 | ||
f049052b BG |
608 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", |
609 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
610 | wpa_supplicant_state_txt(state)); | |
6fc6879b | 611 | |
cb8564b1 DW |
612 | if (state != WPA_SCANNING) |
613 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
614 | ||
6fc6879b JM |
615 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
616 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
617 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
618 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
619 | MACSTR " completed %s [id=%d id_str=%s]", | |
620 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
621 | "(reauth)" : "(auth)", | |
622 | ssid ? ssid->id : -1, | |
623 | ssid && ssid->id_str ? ssid->id_str : ""); | |
624 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
625 | wpa_s->new_connection = 0; | |
626 | wpa_s->reassociated_connection = 1; | |
627 | wpa_drv_set_operstate(wpa_s, 1); | |
99ac2913 FF |
628 | #ifndef IEEE8021X_EAPOL |
629 | wpa_drv_set_supp_port(wpa_s, 1); | |
630 | #endif /* IEEE8021X_EAPOL */ | |
17a4734d | 631 | wpa_s->after_wps = 0; |
b22128ef JM |
632 | #ifdef CONFIG_P2P |
633 | wpas_p2p_completed(wpa_s); | |
634 | #endif /* CONFIG_P2P */ | |
6fc6879b JM |
635 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
636 | state == WPA_ASSOCIATED) { | |
637 | wpa_s->new_connection = 1; | |
638 | wpa_drv_set_operstate(wpa_s, 0); | |
99ac2913 FF |
639 | #ifndef IEEE8021X_EAPOL |
640 | wpa_drv_set_supp_port(wpa_s, 0); | |
641 | #endif /* IEEE8021X_EAPOL */ | |
6fc6879b JM |
642 | } |
643 | wpa_s->wpa_state = state; | |
27f43d8d | 644 | |
cfe53c9a PS |
645 | #ifdef CONFIG_BGSCAN |
646 | if (state == WPA_COMPLETED) | |
647 | wpa_supplicant_start_bgscan(wpa_s); | |
648 | else | |
649 | wpa_supplicant_stop_bgscan(wpa_s); | |
650 | #endif /* CONFIG_BGSCAN */ | |
651 | ||
5bbf9f10 | 652 | if (wpa_s->wpa_state != old_state) { |
27f43d8d | 653 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
5bbf9f10 PS |
654 | |
655 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
656 | old_state == WPA_COMPLETED) | |
657 | wpas_notify_auth_changed(wpa_s); | |
658 | } | |
6fc6879b JM |
659 | } |
660 | ||
661 | ||
1a1bf008 JM |
662 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
663 | { | |
664 | int pending = 0; | |
665 | #ifdef CONFIG_WPS | |
666 | struct wpa_supplicant *wpa_s = global->ifaces; | |
667 | while (wpa_s) { | |
668 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
669 | pending = 1; | |
670 | wpa_s = wpa_s->next; | |
671 | } | |
672 | #endif /* CONFIG_WPS */ | |
673 | if (pending) | |
674 | return; | |
675 | eloop_terminate(); | |
676 | } | |
677 | ||
678 | ||
0456ea16 | 679 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
6fc6879b | 680 | { |
0456ea16 | 681 | struct wpa_global *global = signal_ctx; |
6fc6879b JM |
682 | struct wpa_supplicant *wpa_s; |
683 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
684 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " | |
685 | "received", sig); | |
686 | } | |
1a1bf008 | 687 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
688 | } |
689 | ||
690 | ||
b22128ef | 691 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) |
6fc6879b | 692 | { |
71934751 | 693 | enum wpa_states old_state = wpa_s->wpa_state; |
27f43d8d | 694 | |
6fc6879b JM |
695 | wpa_s->pairwise_cipher = 0; |
696 | wpa_s->group_cipher = 0; | |
697 | wpa_s->mgmt_group_cipher = 0; | |
698 | wpa_s->key_mgmt = 0; | |
8401a6b0 JM |
699 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
700 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
27f43d8d MH |
701 | |
702 | if (wpa_s->wpa_state != old_state) | |
703 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
704 | } |
705 | ||
706 | ||
707 | /** | |
708 | * wpa_supplicant_reload_configuration - Reload configuration data | |
709 | * @wpa_s: Pointer to wpa_supplicant data | |
710 | * Returns: 0 on success or -1 if configuration parsing failed | |
711 | * | |
712 | * This function can be used to request that the configuration data is reloaded | |
713 | * (e.g., after configuration file change). This function is reloading | |
714 | * configuration only for one interface, so this may need to be called multiple | |
715 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
716 | * interfaces need reconfiguration. | |
717 | */ | |
718 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
719 | { | |
720 | struct wpa_config *conf; | |
721 | int reconf_ctrl; | |
8bac466b JM |
722 | int old_ap_scan; |
723 | ||
6fc6879b JM |
724 | if (wpa_s->confname == NULL) |
725 | return -1; | |
726 | conf = wpa_config_read(wpa_s->confname); | |
727 | if (conf == NULL) { | |
728 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
729 | "file '%s' - exiting", wpa_s->confname); | |
730 | return -1; | |
731 | } | |
611aea7d | 732 | conf->changed_parameters = (unsigned int) -1; |
6fc6879b JM |
733 | |
734 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
735 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
736 | os_strcmp(conf->ctrl_interface, | |
737 | wpa_s->conf->ctrl_interface) != 0); | |
738 | ||
739 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
740 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
741 | wpa_s->ctrl_iface = NULL; | |
742 | } | |
743 | ||
744 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
7b7ce8aa JM |
745 | if (wpa_s->current_ssid) { |
746 | wpa_supplicant_deauthenticate(wpa_s, | |
747 | WLAN_REASON_DEAUTH_LEAVING); | |
748 | } | |
8bac466b | 749 | |
6fc6879b JM |
750 | /* |
751 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
752 | * pkcs11_engine_path, pkcs11_module_path. | |
753 | */ | |
56586197 | 754 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
755 | /* |
756 | * Clear forced success to clear EAP state for next | |
757 | * authentication. | |
758 | */ | |
759 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
760 | } | |
761 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
762 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
d8a790b9 | 763 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); |
6fc6879b JM |
764 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); |
765 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
766 | |
767 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
768 | wpa_config_free(wpa_s->conf); |
769 | wpa_s->conf = conf; | |
8bac466b JM |
770 | if (old_ap_scan != wpa_s->conf->ap_scan) |
771 | wpas_notify_ap_scan_changed(wpa_s); | |
772 | ||
6fc6879b JM |
773 | if (reconf_ctrl) |
774 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
775 | ||
611aea7d JM |
776 | wpa_supplicant_update_config(wpa_s); |
777 | ||
6fc6879b | 778 | wpa_supplicant_clear_status(wpa_s); |
43a38635 JM |
779 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
780 | wpa_s->reassociate = 1; | |
781 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
782 | } | |
f049052b | 783 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); |
6fc6879b JM |
784 | return 0; |
785 | } | |
786 | ||
787 | ||
0456ea16 | 788 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
6fc6879b | 789 | { |
0456ea16 | 790 | struct wpa_global *global = signal_ctx; |
6fc6879b | 791 | struct wpa_supplicant *wpa_s; |
6fc6879b | 792 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
f049052b BG |
793 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", |
794 | sig); | |
6fc6879b | 795 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { |
1a1bf008 | 796 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
797 | } |
798 | } | |
799 | } | |
800 | ||
801 | ||
508545f3 | 802 | enum wpa_cipher cipher_suite2driver(int cipher) |
6fc6879b JM |
803 | { |
804 | switch (cipher) { | |
805 | case WPA_CIPHER_NONE: | |
806 | return CIPHER_NONE; | |
807 | case WPA_CIPHER_WEP40: | |
808 | return CIPHER_WEP40; | |
809 | case WPA_CIPHER_WEP104: | |
810 | return CIPHER_WEP104; | |
811 | case WPA_CIPHER_CCMP: | |
812 | return CIPHER_CCMP; | |
813 | case WPA_CIPHER_TKIP: | |
814 | default: | |
815 | return CIPHER_TKIP; | |
816 | } | |
817 | } | |
818 | ||
819 | ||
508545f3 | 820 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
6fc6879b JM |
821 | { |
822 | switch (key_mgmt) { | |
823 | case WPA_KEY_MGMT_NONE: | |
824 | return KEY_MGMT_NONE; | |
825 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
826 | return KEY_MGMT_802_1X_NO_WPA; | |
827 | case WPA_KEY_MGMT_IEEE8021X: | |
828 | return KEY_MGMT_802_1X; | |
829 | case WPA_KEY_MGMT_WPA_NONE: | |
830 | return KEY_MGMT_WPA_NONE; | |
831 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
832 | return KEY_MGMT_FT_802_1X; | |
833 | case WPA_KEY_MGMT_FT_PSK: | |
834 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
835 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
836 | return KEY_MGMT_802_1X_SHA256; | |
837 | case WPA_KEY_MGMT_PSK_SHA256: | |
838 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
839 | case WPA_KEY_MGMT_WPS: |
840 | return KEY_MGMT_WPS; | |
6fc6879b JM |
841 | case WPA_KEY_MGMT_PSK: |
842 | default: | |
843 | return KEY_MGMT_PSK; | |
844 | } | |
845 | } | |
846 | ||
847 | ||
848 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
849 | struct wpa_ssid *ssid, | |
850 | struct wpa_ie_data *ie) | |
851 | { | |
852 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
853 | if (ret) { | |
854 | if (ret == -2) { | |
855 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
856 | "from association info"); | |
857 | } | |
858 | return -1; | |
859 | } | |
860 | ||
f049052b BG |
861 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " |
862 | "cipher suites"); | |
6fc6879b JM |
863 | if (!(ie->group_cipher & ssid->group_cipher)) { |
864 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
865 | "cipher 0x%x (mask 0x%x) - reject", | |
866 | ie->group_cipher, ssid->group_cipher); | |
867 | return -1; | |
868 | } | |
869 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
870 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
871 | "cipher 0x%x (mask 0x%x) - reject", | |
872 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
873 | return -1; | |
874 | } | |
875 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
876 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
877 | "management 0x%x (mask 0x%x) - reject", | |
878 | ie->key_mgmt, ssid->key_mgmt); | |
879 | return -1; | |
880 | } | |
881 | ||
882 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 883 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
70f8cc8e | 884 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
6fc6879b JM |
885 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
886 | "that does not support management frame protection - " | |
887 | "reject"); | |
888 | return -1; | |
889 | } | |
890 | #endif /* CONFIG_IEEE80211W */ | |
891 | ||
892 | return 0; | |
893 | } | |
894 | ||
895 | ||
896 | /** | |
897 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
898 | * @wpa_s: Pointer to wpa_supplicant data | |
899 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
900 | * @ssid: Configuration data for the selected network | |
901 | * @wpa_ie: Buffer for the WPA/RSN IE | |
902 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
903 | * used buffer length in case the functions returns success. | |
904 | * Returns: 0 on success or -1 on failure | |
905 | * | |
906 | * This function is used to configure authentication and encryption parameters | |
907 | * based on the network configuration and scan result for the selected BSS (if | |
908 | * available). | |
909 | */ | |
910 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 911 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
6fc6879b JM |
912 | u8 *wpa_ie, size_t *wpa_ie_len) |
913 | { | |
914 | struct wpa_ie_data ie; | |
915 | int sel, proto; | |
916 | const u8 *bss_wpa, *bss_rsn; | |
917 | ||
918 | if (bss) { | |
6fa81a3b JM |
919 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
920 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
6fc6879b JM |
921 | } else |
922 | bss_wpa = bss_rsn = NULL; | |
923 | ||
924 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
925 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
926 | (ie.group_cipher & ssid->group_cipher) && | |
927 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
928 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 929 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); |
6fc6879b JM |
930 | proto = WPA_PROTO_RSN; |
931 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
932 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
933 | (ie.group_cipher & ssid->group_cipher) && | |
934 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
935 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 936 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); |
6fc6879b JM |
937 | proto = WPA_PROTO_WPA; |
938 | } else if (bss) { | |
939 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
940 | return -1; | |
941 | } else { | |
942 | if (ssid->proto & WPA_PROTO_RSN) | |
943 | proto = WPA_PROTO_RSN; | |
944 | else | |
945 | proto = WPA_PROTO_WPA; | |
946 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
947 | os_memset(&ie, 0, sizeof(ie)); | |
948 | ie.group_cipher = ssid->group_cipher; | |
949 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
950 | ie.key_mgmt = ssid->key_mgmt; | |
951 | #ifdef CONFIG_IEEE80211W | |
952 | ie.mgmt_group_cipher = | |
70f8cc8e | 953 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
6fc6879b JM |
954 | WPA_CIPHER_AES_128_CMAC : 0; |
955 | #endif /* CONFIG_IEEE80211W */ | |
f049052b BG |
956 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " |
957 | "based on configuration"); | |
6fc6879b JM |
958 | } else |
959 | proto = ie.proto; | |
960 | } | |
961 | ||
f049052b BG |
962 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " |
963 | "pairwise %d key_mgmt %d proto %d", | |
964 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
6fc6879b JM |
965 | #ifdef CONFIG_IEEE80211W |
966 | if (ssid->ieee80211w) { | |
f049052b BG |
967 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", |
968 | ie.mgmt_group_cipher); | |
6fc6879b JM |
969 | } |
970 | #endif /* CONFIG_IEEE80211W */ | |
971 | ||
64fa840a | 972 | wpa_s->wpa_proto = proto; |
6fc6879b JM |
973 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); |
974 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
975 | !!(ssid->proto & WPA_PROTO_RSN)); | |
976 | ||
977 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
978 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
979 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
980 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
981 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
982 | return -1; | |
983 | } | |
984 | ||
985 | sel = ie.group_cipher & ssid->group_cipher; | |
986 | if (sel & WPA_CIPHER_CCMP) { | |
987 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
f049052b | 988 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); |
6fc6879b JM |
989 | } else if (sel & WPA_CIPHER_TKIP) { |
990 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
f049052b | 991 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); |
6fc6879b JM |
992 | } else if (sel & WPA_CIPHER_WEP104) { |
993 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
f049052b | 994 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); |
6fc6879b JM |
995 | } else if (sel & WPA_CIPHER_WEP40) { |
996 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
f049052b | 997 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); |
6fc6879b | 998 | } else { |
f049052b BG |
999 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " |
1000 | "cipher"); | |
6fc6879b JM |
1001 | return -1; |
1002 | } | |
1003 | ||
1004 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
1005 | if (sel & WPA_CIPHER_CCMP) { | |
1006 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
f049052b | 1007 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); |
6fc6879b JM |
1008 | } else if (sel & WPA_CIPHER_TKIP) { |
1009 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
f049052b | 1010 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); |
6fc6879b JM |
1011 | } else if (sel & WPA_CIPHER_NONE) { |
1012 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
f049052b | 1013 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); |
6fc6879b | 1014 | } else { |
f049052b BG |
1015 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " |
1016 | "cipher"); | |
6fc6879b JM |
1017 | return -1; |
1018 | } | |
1019 | ||
1020 | sel = ie.key_mgmt & ssid->key_mgmt; | |
1021 | if (0) { | |
1022 | #ifdef CONFIG_IEEE80211R | |
1023 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
1024 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
f049052b | 1025 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); |
6fc6879b JM |
1026 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { |
1027 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
f049052b | 1028 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); |
6fc6879b | 1029 | #endif /* CONFIG_IEEE80211R */ |
56586197 JM |
1030 | #ifdef CONFIG_IEEE80211W |
1031 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
1032 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
f049052b | 1033 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1034 | "WPA: using KEY_MGMT 802.1X with SHA256"); |
1035 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1036 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
f049052b | 1037 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1038 | "WPA: using KEY_MGMT PSK with SHA256"); |
1039 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1040 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
1041 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
f049052b | 1042 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); |
6fc6879b JM |
1043 | } else if (sel & WPA_KEY_MGMT_PSK) { |
1044 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
f049052b | 1045 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); |
6fc6879b JM |
1046 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { |
1047 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
f049052b | 1048 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); |
6fc6879b | 1049 | } else { |
f049052b BG |
1050 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " |
1051 | "authenticated key management type"); | |
6fc6879b JM |
1052 | return -1; |
1053 | } | |
1054 | ||
1055 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1056 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1057 | wpa_s->pairwise_cipher); | |
1058 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1059 | ||
1060 | #ifdef CONFIG_IEEE80211W | |
1061 | sel = ie.mgmt_group_cipher; | |
70f8cc8e | 1062 | if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION || |
0b60b0aa | 1063 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
1064 | sel = 0; |
1065 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1066 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
f049052b | 1067 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " |
6fc6879b JM |
1068 | "AES-128-CMAC"); |
1069 | } else { | |
1070 | wpa_s->mgmt_group_cipher = 0; | |
f049052b | 1071 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); |
6fc6879b JM |
1072 | } |
1073 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1074 | wpa_s->mgmt_group_cipher); | |
e820cf95 | 1075 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w); |
6fc6879b JM |
1076 | #endif /* CONFIG_IEEE80211W */ |
1077 | ||
1078 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
f049052b | 1079 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); |
6fc6879b JM |
1080 | return -1; |
1081 | } | |
1082 | ||
0bf927a0 | 1083 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { |
6fc6879b | 1084 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
7d232e23 ZC |
1085 | #ifndef CONFIG_NO_PBKDF2 |
1086 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && | |
1087 | ssid->passphrase) { | |
1088 | u8 psk[PMK_LEN]; | |
1089 | pbkdf2_sha1(ssid->passphrase, (char *) bss->ssid, | |
1090 | bss->ssid_len, 4096, psk, PMK_LEN); | |
1091 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", | |
1092 | psk, PMK_LEN); | |
1093 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1094 | } | |
1095 | #endif /* CONFIG_NO_PBKDF2 */ | |
1096 | } else | |
6fc6879b JM |
1097 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | ||
1103 | /** | |
1104 | * wpa_supplicant_associate - Request association | |
1105 | * @wpa_s: Pointer to wpa_supplicant data | |
1106 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1107 | * @ssid: Configuration data for the selected network | |
1108 | * | |
1109 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1110 | */ | |
1111 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 1112 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
6fc6879b | 1113 | { |
5f3a6aa0 | 1114 | u8 wpa_ie[200]; |
6fc6879b | 1115 | size_t wpa_ie_len; |
8bac466b | 1116 | int use_crypt, ret, i, bssid_changed; |
abd9fafa | 1117 | int algs = WPA_AUTH_ALG_OPEN; |
71934751 | 1118 | enum wpa_cipher cipher_pairwise, cipher_group; |
6fc6879b JM |
1119 | struct wpa_driver_associate_params params; |
1120 | int wep_keys_set = 0; | |
1121 | struct wpa_driver_capa capa; | |
1122 | int assoc_failed = 0; | |
8bac466b | 1123 | struct wpa_ssid *old_ssid; |
6fc6879b | 1124 | |
78177a00 JM |
1125 | #ifdef CONFIG_IBSS_RSN |
1126 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1127 | wpa_s->ibss_rsn = NULL; | |
1128 | #endif /* CONFIG_IBSS_RSN */ | |
1129 | ||
2c5d725c JM |
1130 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || |
1131 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1581b38b JM |
1132 | #ifdef CONFIG_AP |
1133 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
f049052b BG |
1134 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " |
1135 | "mode"); | |
1581b38b JM |
1136 | return; |
1137 | } | |
1138 | wpa_supplicant_create_ap(wpa_s, ssid); | |
8f770587 | 1139 | wpa_s->current_bss = bss; |
1581b38b | 1140 | #else /* CONFIG_AP */ |
f049052b BG |
1141 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " |
1142 | "the build"); | |
1581b38b JM |
1143 | #endif /* CONFIG_AP */ |
1144 | return; | |
1145 | } | |
1146 | ||
52c9e6f3 | 1147 | #ifdef CONFIG_TDLS |
95cb2d88 JM |
1148 | if (bss) |
1149 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), | |
1150 | bss->ie_len); | |
52c9e6f3 JM |
1151 | #endif /* CONFIG_TDLS */ |
1152 | ||
5cc4d64b JM |
1153 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
1154 | ssid->mode == IEEE80211_MODE_INFRA) { | |
c2a04078 JM |
1155 | sme_authenticate(wpa_s, bss, ssid); |
1156 | return; | |
1157 | } | |
1158 | ||
0c80427d | 1159 | os_memset(¶ms, 0, sizeof(params)); |
6fc6879b | 1160 | wpa_s->reassociate = 0; |
22628eca | 1161 | if (bss && !wpas_driver_bss_selection(wpa_s)) { |
6fc6879b | 1162 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1163 | const u8 *ie, *md = NULL; |
6fc6879b | 1164 | #endif /* CONFIG_IEEE80211R */ |
6fc6879b JM |
1165 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
1166 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
6fa81a3b | 1167 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
8bac466b | 1168 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1169 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1170 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1171 | if (bssid_changed) |
1172 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b | 1173 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1174 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
6fc6879b JM |
1175 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
1176 | md = ie + 2; | |
e7846b68 | 1177 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
91a05482 JM |
1178 | if (md) { |
1179 | /* Prepare for the next transition */ | |
76b7981d | 1180 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
91a05482 | 1181 | } |
6fc6879b | 1182 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1183 | #ifdef CONFIG_WPS |
1184 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1185 | wpa_s->conf->ap_scan == 2 && | |
1186 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1187 | /* Use ap_scan==1 style network selection to find the network | |
1188 | */ | |
1189 | wpa_s->scan_req = 2; | |
1190 | wpa_s->reassociate = 1; | |
1191 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1192 | return; | |
1193 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1194 | } else { |
1195 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1196 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1197 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1198 | } | |
a4cba8f1 | 1199 | wpa_supplicant_cancel_sched_scan(wpa_s); |
6fc6879b JM |
1200 | wpa_supplicant_cancel_scan(wpa_s); |
1201 | ||
1202 | /* Starting new association, so clear the possibly used WPA IE from the | |
1203 | * previous association. */ | |
1204 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1205 | ||
1206 | #ifdef IEEE8021X_EAPOL | |
1207 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1208 | if (ssid->leap) { | |
1209 | if (ssid->non_leap == 0) | |
abd9fafa | 1210 | algs = WPA_AUTH_ALG_LEAP; |
6fc6879b | 1211 | else |
abd9fafa | 1212 | algs |= WPA_AUTH_ALG_LEAP; |
6fc6879b JM |
1213 | } |
1214 | } | |
1215 | #endif /* IEEE8021X_EAPOL */ | |
f049052b | 1216 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); |
6fc6879b | 1217 | if (ssid->auth_alg) { |
abd9fafa | 1218 | algs = ssid->auth_alg; |
f049052b BG |
1219 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " |
1220 | "0x%x", algs); | |
6fc6879b | 1221 | } |
6fc6879b | 1222 | |
6fa81a3b JM |
1223 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
1224 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
0bf927a0 | 1225 | wpa_key_mgmt_wpa(ssid->key_mgmt)) { |
6fc6879b JM |
1226 | int try_opportunistic; |
1227 | try_opportunistic = ssid->proactive_key_caching && | |
1228 | (ssid->proto & WPA_PROTO_RSN); | |
1229 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1230 | wpa_s->current_ssid, | |
1231 | try_opportunistic) == 0) | |
1232 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1233 | wpa_ie_len = sizeof(wpa_ie); | |
1234 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1235 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1236 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1237 | "key management and encryption suites"); | |
6fc6879b JM |
1238 | return; |
1239 | } | |
0bf927a0 | 1240 | } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { |
6fc6879b JM |
1241 | wpa_ie_len = sizeof(wpa_ie); |
1242 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1243 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1244 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1245 | "key management and encryption suites (no " | |
1246 | "scan results)"); | |
6fc6879b JM |
1247 | return; |
1248 | } | |
ad08c363 JM |
1249 | #ifdef CONFIG_WPS |
1250 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1251 | struct wpabuf *wps_ie; |
1252 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1253 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1254 | wpa_ie_len = wpabuf_len(wps_ie); | |
1255 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1256 | } else |
1257 | wpa_ie_len = 0; | |
ad08c363 JM |
1258 | wpabuf_free(wps_ie); |
1259 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
0c80427d JM |
1260 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
1261 | params.wps = WPS_MODE_PRIVACY; | |
1262 | else | |
1263 | params.wps = WPS_MODE_OPEN; | |
cf546f1a | 1264 | wpa_s->wpa_proto = 0; |
ad08c363 | 1265 | #endif /* CONFIG_WPS */ |
6fc6879b JM |
1266 | } else { |
1267 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1268 | wpa_ie_len = 0; | |
cf546f1a | 1269 | wpa_s->wpa_proto = 0; |
6fc6879b JM |
1270 | } |
1271 | ||
5f3a6aa0 JM |
1272 | #ifdef CONFIG_P2P |
1273 | if (wpa_s->global->p2p) { | |
1274 | u8 *pos; | |
1275 | size_t len; | |
1276 | int res; | |
1277 | int p2p_group; | |
1278 | p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE; | |
1279 | pos = wpa_ie + wpa_ie_len; | |
1280 | len = sizeof(wpa_ie) - wpa_ie_len; | |
4c08c0bd | 1281 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group); |
5f3a6aa0 JM |
1282 | if (res >= 0) |
1283 | wpa_ie_len += res; | |
1284 | } | |
72044390 JM |
1285 | |
1286 | wpa_s->cross_connect_disallowed = 0; | |
1287 | if (bss) { | |
1288 | struct wpabuf *p2p; | |
1289 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1290 | if (p2p) { | |
1291 | wpa_s->cross_connect_disallowed = | |
1292 | p2p_get_cross_connect_disallowed(p2p); | |
1293 | wpabuf_free(p2p); | |
f049052b BG |
1294 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " |
1295 | "connection", | |
1296 | wpa_s->cross_connect_disallowed ? | |
1297 | "disallows" : "allows"); | |
72044390 JM |
1298 | } |
1299 | } | |
5f3a6aa0 JM |
1300 | #endif /* CONFIG_P2P */ |
1301 | ||
92cbcf91 JM |
1302 | #ifdef CONFIG_INTERWORKING |
1303 | if (wpa_s->conf->interworking) { | |
1304 | u8 *pos = wpa_ie; | |
1305 | if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) | |
1306 | pos += 2 + pos[1]; | |
1307 | os_memmove(pos + 6, pos, wpa_ie_len - (pos - wpa_ie)); | |
1308 | wpa_ie_len += 6; | |
1309 | *pos++ = WLAN_EID_EXT_CAPAB; | |
1310 | *pos++ = 4; | |
1311 | *pos++ = 0x00; | |
1312 | *pos++ = 0x00; | |
1313 | *pos++ = 0x00; | |
1314 | *pos++ = 0x80; /* Bit 31 - Interworking */ | |
1315 | } | |
1316 | #endif /* CONFIG_INTERWORKING */ | |
1317 | ||
6fc6879b JM |
1318 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); |
1319 | use_crypt = 1; | |
1320 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1321 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1322 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1323 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1324 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1325 | use_crypt = 0; | |
1326 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1327 | use_crypt = 1; | |
1328 | wep_keys_set = 1; | |
1329 | } | |
1330 | } | |
ad08c363 JM |
1331 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1332 | use_crypt = 0; | |
6fc6879b JM |
1333 | |
1334 | #ifdef IEEE8021X_EAPOL | |
1335 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1336 | if ((ssid->eapol_flags & | |
1337 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1338 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1339 | !wep_keys_set) { | |
1340 | use_crypt = 0; | |
1341 | } else { | |
1342 | /* Assume that dynamic WEP-104 keys will be used and | |
1343 | * set cipher suites in order for drivers to expect | |
1344 | * encryption. */ | |
1345 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1346 | } | |
1347 | } | |
1348 | #endif /* IEEE8021X_EAPOL */ | |
1349 | ||
1350 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1351 | /* Set the key before (and later after) association */ | |
1352 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1353 | } | |
1354 | ||
6fc6879b | 1355 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
6fc6879b | 1356 | if (bss) { |
6fa81a3b JM |
1357 | params.ssid = bss->ssid; |
1358 | params.ssid_len = bss->ssid_len; | |
22628eca JM |
1359 | if (!wpas_driver_bss_selection(wpa_s)) { |
1360 | params.bssid = bss->bssid; | |
1361 | params.freq = bss->freq; | |
1362 | } | |
6fc6879b JM |
1363 | } else { |
1364 | params.ssid = ssid->ssid; | |
1365 | params.ssid_len = ssid->ssid_len; | |
1366 | } | |
d7dcba70 JM |
1367 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
1368 | params.freq == 0) | |
6fc6879b JM |
1369 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
1370 | params.wpa_ie = wpa_ie; | |
1371 | params.wpa_ie_len = wpa_ie_len; | |
1372 | params.pairwise_suite = cipher_pairwise; | |
1373 | params.group_suite = cipher_group; | |
1374 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
64fa840a | 1375 | params.wpa_proto = wpa_s->wpa_proto; |
6fc6879b JM |
1376 | params.auth_alg = algs; |
1377 | params.mode = ssid->mode; | |
1378 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1379 | if (ssid->wep_key_len[i]) | |
1380 | params.wep_key[i] = ssid->wep_key[i]; | |
1381 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1382 | } | |
1383 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1384 | ||
c2a04078 | 1385 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1386 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1387 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1388 | params.passphrase = ssid->passphrase; | |
1389 | if (ssid->psk_set) | |
1390 | params.psk = ssid->psk; | |
1391 | } | |
1392 | ||
36b15723 JM |
1393 | params.drop_unencrypted = use_crypt; |
1394 | ||
6fc6879b | 1395 | #ifdef CONFIG_IEEE80211W |
70f8cc8e JM |
1396 | params.mgmt_frame_protection = ssid->ieee80211w; |
1397 | if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) { | |
6fa81a3b | 1398 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
97d3497e JM |
1399 | struct wpa_ie_data ie; |
1400 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1401 | ie.capabilities & | |
1402 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
f049052b BG |
1403 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " |
1404 | "MFP: require MFP"); | |
97d3497e JM |
1405 | params.mgmt_frame_protection = |
1406 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1407 | } | |
1408 | } | |
6fc6879b JM |
1409 | #endif /* CONFIG_IEEE80211W */ |
1410 | ||
ffad8858 | 1411 | params.p2p = ssid->p2p_group; |
6e3f4b89 | 1412 | |
eea2fd9e JM |
1413 | if (wpa_s->parent->set_sta_uapsd) |
1414 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1415 | else | |
1416 | params.uapsd = -1; | |
1417 | ||
17fbb751 | 1418 | ret = wpa_drv_associate(wpa_s, ¶ms); |
6fc6879b JM |
1419 | if (ret < 0) { |
1420 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1421 | "failed"); | |
871f4dd0 JM |
1422 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { |
1423 | /* | |
1424 | * The driver is known to mean what is saying, so we | |
1425 | * can stop right here; the association will not | |
1426 | * succeed. | |
1427 | */ | |
1428 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
1429 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1430 | return; | |
1431 | } | |
6fc6879b JM |
1432 | /* try to continue anyway; new association will be tried again |
1433 | * after timeout */ | |
1434 | assoc_failed = 1; | |
1435 | } | |
1436 | ||
1437 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1438 | /* Set the key after the association just in case association | |
1439 | * cleared the previously configured key. */ | |
1440 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1441 | /* No need to timeout authentication since there is no key | |
1442 | * management. */ | |
1443 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1444 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b | 1445 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 1446 | } else if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
1447 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
1448 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
1449 | /* | |
1450 | * RSN IBSS authentication is per-STA and we can disable the | |
1451 | * per-BSSID authentication. | |
1452 | */ | |
1453 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
53895c3b | 1454 | #endif /* CONFIG_IBSS_RSN */ |
6fc6879b JM |
1455 | } else { |
1456 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1457 | int timeout = 60; |
1458 | ||
1459 | if (assoc_failed) { | |
1460 | /* give IBSS a bit more time */ | |
d7dcba70 | 1461 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
1d3c75b3 DW |
1462 | } else if (wpa_s->conf->ap_scan == 1) { |
1463 | /* give IBSS a bit more time */ | |
d7dcba70 | 1464 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
1d3c75b3 | 1465 | } |
6fc6879b JM |
1466 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1467 | } | |
1468 | ||
1469 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1470 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1471 | /* Set static WEP keys again */ | |
1472 | wpa_set_wep_keys(wpa_s, ssid); | |
1473 | } | |
1474 | ||
1475 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1476 | /* | |
1477 | * Do not allow EAP session resumption between different | |
1478 | * network configurations. | |
1479 | */ | |
1480 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1481 | } | |
8bac466b | 1482 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 1483 | wpa_s->current_ssid = ssid; |
8f770587 | 1484 | wpa_s->current_bss = bss; |
6fc6879b JM |
1485 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
1486 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1487 | if (old_ssid != wpa_s->current_ssid) |
1488 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1489 | } |
1490 | ||
1491 | ||
09f58c09 JM |
1492 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
1493 | const u8 *addr) | |
1494 | { | |
1495 | struct wpa_ssid *old_ssid; | |
1496 | ||
1497 | wpa_clear_keys(wpa_s, addr); | |
1498 | wpa_supplicant_mark_disassoc(wpa_s); | |
1499 | old_ssid = wpa_s->current_ssid; | |
1500 | wpa_s->current_ssid = NULL; | |
1501 | wpa_s->current_bss = NULL; | |
1502 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1503 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1504 | if (old_ssid != wpa_s->current_ssid) | |
1505 | wpas_notify_network_changed(wpa_s); | |
1506 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1507 | } | |
1508 | ||
1509 | ||
6fc6879b JM |
1510 | /** |
1511 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1512 | * @wpa_s: Pointer to wpa_supplicant data | |
1513 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1514 | * | |
1515 | * This function is used to request %wpa_supplicant to disassociate with the | |
1516 | * current AP. | |
1517 | */ | |
1518 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1519 | int reason_code) | |
1520 | { | |
1521 | u8 *addr = NULL; | |
8bac466b | 1522 | |
a8e16edc | 1523 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
17fbb751 | 1524 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); |
6fc6879b JM |
1525 | addr = wpa_s->bssid; |
1526 | } | |
09f58c09 JM |
1527 | |
1528 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1529 | } |
1530 | ||
1531 | ||
1532 | /** | |
1533 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1534 | * @wpa_s: Pointer to wpa_supplicant data | |
1535 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1536 | * | |
073ab58f | 1537 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1538 | * current AP. |
1539 | */ | |
1540 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1541 | int reason_code) | |
1542 | { | |
1543 | u8 *addr = NULL; | |
8bac466b | 1544 | |
a8e16edc | 1545 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
17fbb751 | 1546 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, reason_code); |
6fc6879b JM |
1547 | addr = wpa_s->bssid; |
1548 | } | |
09f58c09 JM |
1549 | |
1550 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1551 | } |
1552 | ||
1553 | ||
86b89452 WS |
1554 | /** |
1555 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1556 | * @wpa_s: wpa_supplicant structure for a network interface | |
1557 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1558 | * | |
1559 | * Enables the specified network or all networks if no network specified. | |
1560 | */ | |
1561 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1562 | struct wpa_ssid *ssid) | |
1563 | { | |
1564 | struct wpa_ssid *other_ssid; | |
1565 | int was_disabled; | |
1566 | ||
1567 | if (ssid == NULL) { | |
4dac0245 JM |
1568 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1569 | other_ssid = other_ssid->next) { | |
1570 | if (other_ssid->disabled == 2) | |
1571 | continue; /* do not change persistent P2P group | |
1572 | * data */ | |
86b89452 WS |
1573 | if (other_ssid == wpa_s->current_ssid && |
1574 | other_ssid->disabled) | |
1575 | wpa_s->reassociate = 1; | |
1576 | ||
1577 | was_disabled = other_ssid->disabled; | |
1578 | ||
1579 | other_ssid->disabled = 0; | |
1580 | ||
1581 | if (was_disabled != other_ssid->disabled) | |
1582 | wpas_notify_network_enabled_changed( | |
1583 | wpa_s, other_ssid); | |
86b89452 WS |
1584 | } |
1585 | if (wpa_s->reassociate) | |
1586 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
4dac0245 | 1587 | } else if (ssid->disabled && ssid->disabled != 2) { |
adc8d4a7 KM |
1588 | if (wpa_s->current_ssid == NULL) { |
1589 | /* | |
1590 | * Try to reassociate since there is no current | |
1591 | * configuration and a new network was made available. | |
1592 | */ | |
1593 | wpa_s->reassociate = 1; | |
1594 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1595 | } | |
86b89452 WS |
1596 | |
1597 | was_disabled = ssid->disabled; | |
1598 | ||
1599 | ssid->disabled = 0; | |
1600 | ||
1601 | if (was_disabled != ssid->disabled) | |
1602 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1603 | } | |
1604 | } | |
1605 | ||
1606 | ||
1607 | /** | |
1608 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1609 | * @wpa_s: wpa_supplicant structure for a network interface | |
1610 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1611 | * | |
1612 | * Disables the specified network or all networks if no network specified. | |
1613 | */ | |
1614 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1615 | struct wpa_ssid *ssid) | |
1616 | { | |
1617 | struct wpa_ssid *other_ssid; | |
1618 | int was_disabled; | |
1619 | ||
1620 | if (ssid == NULL) { | |
4dac0245 JM |
1621 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1622 | other_ssid = other_ssid->next) { | |
86b89452 | 1623 | was_disabled = other_ssid->disabled; |
4dac0245 JM |
1624 | if (was_disabled == 2) |
1625 | continue; /* do not change persistent P2P group | |
1626 | * data */ | |
86b89452 WS |
1627 | |
1628 | other_ssid->disabled = 1; | |
1629 | ||
1630 | if (was_disabled != other_ssid->disabled) | |
1631 | wpas_notify_network_enabled_changed( | |
1632 | wpa_s, other_ssid); | |
86b89452 WS |
1633 | } |
1634 | if (wpa_s->current_ssid) | |
1635 | wpa_supplicant_disassociate( | |
1636 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
4dac0245 | 1637 | } else if (ssid->disabled != 2) { |
86b89452 WS |
1638 | if (ssid == wpa_s->current_ssid) |
1639 | wpa_supplicant_disassociate( | |
1640 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1641 | ||
1642 | was_disabled = ssid->disabled; | |
1643 | ||
1644 | ssid->disabled = 1; | |
1645 | ||
1646 | if (was_disabled != ssid->disabled) | |
1647 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | ||
1652 | /** | |
1653 | * wpa_supplicant_select_network - Attempt association with a network | |
1654 | * @wpa_s: wpa_supplicant structure for a network interface | |
1655 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1656 | */ | |
1657 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1658 | struct wpa_ssid *ssid) | |
1659 | { | |
1660 | ||
1661 | struct wpa_ssid *other_ssid; | |
1662 | ||
1663 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) | |
1664 | wpa_supplicant_disassociate( | |
1665 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1666 | ||
1667 | /* | |
1668 | * Mark all other networks disabled or mark all networks enabled if no | |
1669 | * network specified. | |
1670 | */ | |
4dac0245 JM |
1671 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1672 | other_ssid = other_ssid->next) { | |
86b89452 | 1673 | int was_disabled = other_ssid->disabled; |
4dac0245 JM |
1674 | if (was_disabled == 2) |
1675 | continue; /* do not change persistent P2P group data */ | |
86b89452 WS |
1676 | |
1677 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1678 | ||
1679 | if (was_disabled != other_ssid->disabled) | |
1680 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
86b89452 | 1681 | } |
2a6f78fb JJ |
1682 | |
1683 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { | |
1684 | /* We are already associated with the selected network */ | |
1685 | wpa_printf(MSG_DEBUG, "Already associated with the " | |
1686 | "selected network - do nothing"); | |
1687 | return; | |
1688 | } | |
1689 | ||
7dcdcfd6 | 1690 | wpa_s->connect_without_scan = NULL; |
86b89452 WS |
1691 | wpa_s->disconnected = 0; |
1692 | wpa_s->reassociate = 1; | |
1693 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1694 | ||
a1641d26 JM |
1695 | if (ssid) |
1696 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1697 | } |
1698 | ||
1699 | ||
1700 | /** | |
1701 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1702 | * @wpa_s: wpa_supplicant structure for a network interface | |
1703 | * @ap_scan: AP scan mode | |
1704 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1705 | * | |
1706 | */ | |
1707 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1708 | { | |
1709 | ||
1710 | int old_ap_scan; | |
1711 | ||
1712 | if (ap_scan < 0 || ap_scan > 2) | |
1713 | return -1; | |
1714 | ||
48f8e036 DS |
1715 | #ifdef ANDROID |
1716 | if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && | |
1717 | wpa_s->wpa_state >= WPA_ASSOCIATING && | |
1718 | wpa_s->wpa_state < WPA_COMPLETED) { | |
1719 | wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " | |
1720 | "associating", wpa_s->conf->ap_scan, ap_scan); | |
1721 | return 0; | |
1722 | } | |
1723 | #endif /* ANDROID */ | |
1724 | ||
86b89452 WS |
1725 | old_ap_scan = wpa_s->conf->ap_scan; |
1726 | wpa_s->conf->ap_scan = ap_scan; | |
1727 | ||
1728 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1729 | wpas_notify_ap_scan_changed(wpa_s); | |
1730 | ||
1731 | return 0; | |
1732 | } | |
1733 | ||
1734 | ||
78633c37 SL |
1735 | /** |
1736 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
1737 | * @wpa_s: wpa_supplicant structure for a network interface | |
1738 | * @expire_age: Expiration age in seconds | |
1739 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
1740 | * | |
1741 | */ | |
1742 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
1743 | unsigned int bss_expire_age) | |
1744 | { | |
1745 | if (bss_expire_age < 10) { | |
1746 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
1747 | bss_expire_age); | |
1748 | return -1; | |
1749 | } | |
1750 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
1751 | bss_expire_age); | |
1752 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
1753 | ||
1754 | return 0; | |
1755 | } | |
1756 | ||
1757 | ||
1758 | /** | |
1759 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
1760 | * @wpa_s: wpa_supplicant structure for a network interface | |
1761 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
1762 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
1763 | * | |
1764 | */ | |
1765 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
1766 | unsigned int bss_expire_count) | |
1767 | { | |
1768 | if (bss_expire_count < 1) { | |
1769 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
1770 | bss_expire_count); | |
1771 | return -1; | |
1772 | } | |
1773 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
1774 | bss_expire_count); | |
1775 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
1776 | ||
1777 | return 0; | |
1778 | } | |
1779 | ||
1780 | ||
86b89452 WS |
1781 | /** |
1782 | * wpa_supplicant_set_debug_params - Set global debug params | |
1783 | * @global: wpa_global structure | |
1784 | * @debug_level: debug level | |
1785 | * @debug_timestamp: determines if show timestamp in debug data | |
1786 | * @debug_show_keys: determines if show keys in debug data | |
1787 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1788 | */ | |
1789 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1790 | int debug_timestamp, int debug_show_keys) | |
1791 | { | |
1792 | ||
1793 | int old_level, old_timestamp, old_show_keys; | |
1794 | ||
1795 | /* check for allowed debuglevels */ | |
14dc0011 PS |
1796 | if (debug_level != MSG_EXCESSIVE && |
1797 | debug_level != MSG_MSGDUMP && | |
86b89452 WS |
1798 | debug_level != MSG_DEBUG && |
1799 | debug_level != MSG_INFO && | |
1800 | debug_level != MSG_WARNING && | |
1801 | debug_level != MSG_ERROR) | |
1802 | return -1; | |
1803 | ||
1804 | old_level = wpa_debug_level; | |
1805 | old_timestamp = wpa_debug_timestamp; | |
1806 | old_show_keys = wpa_debug_show_keys; | |
1807 | ||
1808 | wpa_debug_level = debug_level; | |
1809 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1810 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1811 | ||
db9133ac WS |
1812 | if (wpa_debug_level != old_level) |
1813 | wpas_notify_debug_level_changed(global); | |
1814 | if (wpa_debug_timestamp != old_timestamp) | |
1815 | wpas_notify_debug_timestamp_changed(global); | |
1816 | if (wpa_debug_show_keys != old_show_keys) | |
1817 | wpas_notify_debug_show_keys_changed(global); | |
86b89452 WS |
1818 | |
1819 | return 0; | |
1820 | } | |
1821 | ||
1822 | ||
6fc6879b JM |
1823 | /** |
1824 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1825 | * @wpa_s: Pointer to wpa_supplicant data | |
1826 | * Returns: A pointer to the current network structure or %NULL on failure | |
1827 | */ | |
1828 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1829 | { | |
1830 | struct wpa_ssid *entry; | |
1831 | u8 ssid[MAX_SSID_LEN]; | |
1832 | int res; | |
1833 | size_t ssid_len; | |
1834 | u8 bssid[ETH_ALEN]; | |
1835 | int wired; | |
1836 | ||
17fbb751 JM |
1837 | res = wpa_drv_get_ssid(wpa_s, ssid); |
1838 | if (res < 0) { | |
1839 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " | |
1840 | "driver"); | |
1841 | return NULL; | |
6fc6879b | 1842 | } |
17fbb751 | 1843 | ssid_len = res; |
6fc6879b | 1844 | |
17fbb751 | 1845 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { |
f049052b BG |
1846 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " |
1847 | "driver"); | |
6fc6879b JM |
1848 | return NULL; |
1849 | } | |
1850 | ||
c2a04078 JM |
1851 | wired = wpa_s->conf->ap_scan == 0 && |
1852 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1853 | |
1854 | entry = wpa_s->conf->ssid; | |
1855 | while (entry) { | |
1856 | if (!entry->disabled && | |
1857 | ((ssid_len == entry->ssid_len && | |
1858 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1859 | (!entry->bssid_set || | |
1860 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1861 | return entry; | |
24c23d1b JM |
1862 | #ifdef CONFIG_WPS |
1863 | if (!entry->disabled && | |
1864 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1865 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1866 | (!entry->bssid_set || | |
1867 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1868 | return entry; | |
1869 | #endif /* CONFIG_WPS */ | |
7d232e23 ZC |
1870 | |
1871 | if (!entry->disabled && entry->bssid_set && | |
1872 | entry->ssid_len == 0 && | |
1873 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) | |
1874 | return entry; | |
1875 | ||
6fc6879b JM |
1876 | entry = entry->next; |
1877 | } | |
1878 | ||
1879 | return NULL; | |
1880 | } | |
1881 | ||
1882 | ||
7756114f JM |
1883 | static int select_driver(struct wpa_supplicant *wpa_s, int i) |
1884 | { | |
1885 | struct wpa_global *global = wpa_s->global; | |
1886 | ||
1887 | if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { | |
1888 | global->drv_priv[i] = wpa_drivers[i]->global_init(); | |
1889 | if (global->drv_priv[i] == NULL) { | |
1890 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
1891 | "'%s'", wpa_drivers[i]->name); | |
1892 | return -1; | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | wpa_s->driver = wpa_drivers[i]; | |
1897 | wpa_s->global_drv_priv = global->drv_priv[i]; | |
1898 | ||
1899 | return 0; | |
1900 | } | |
1901 | ||
1902 | ||
6fc6879b JM |
1903 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, |
1904 | const char *name) | |
1905 | { | |
1906 | int i; | |
362f781e | 1907 | size_t len; |
74b1c84a | 1908 | const char *pos, *driver = name; |
6fc6879b JM |
1909 | |
1910 | if (wpa_s == NULL) | |
1911 | return -1; | |
1912 | ||
c5121837 | 1913 | if (wpa_drivers[0] == NULL) { |
f049052b BG |
1914 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " |
1915 | "wpa_supplicant"); | |
6fc6879b JM |
1916 | return -1; |
1917 | } | |
1918 | ||
1919 | if (name == NULL) { | |
1920 | /* default to first driver in the list */ | |
7756114f | 1921 | return select_driver(wpa_s, 0); |
6fc6879b JM |
1922 | } |
1923 | ||
74b1c84a SO |
1924 | do { |
1925 | pos = os_strchr(driver, ','); | |
1926 | if (pos) | |
1927 | len = pos - driver; | |
1928 | else | |
1929 | len = os_strlen(driver); | |
1930 | ||
1931 | for (i = 0; wpa_drivers[i]; i++) { | |
1932 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1933 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
7756114f JM |
1934 | 0) |
1935 | return select_driver(wpa_s, i); | |
6fc6879b | 1936 | } |
74b1c84a SO |
1937 | |
1938 | driver = pos + 1; | |
1939 | } while (pos); | |
6fc6879b | 1940 | |
f049052b | 1941 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); |
6fc6879b JM |
1942 | return -1; |
1943 | } | |
1944 | ||
1945 | ||
a8e0505b JM |
1946 | /** |
1947 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
1948 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
1949 | * with struct wpa_driver_ops::init() | |
1950 | * @src_addr: Source address of the EAPOL frame | |
1951 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
1952 | * @len: Length of the EAPOL data | |
1953 | * | |
1954 | * This function is called for each received EAPOL frame. Most driver | |
1955 | * interfaces rely on more generic OS mechanism for receiving frames through | |
1956 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
1957 | * take care of received EAPOL frames and deliver them to the core supplicant | |
1958 | * code by calling this function. | |
1959 | */ | |
6fc6879b JM |
1960 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
1961 | const u8 *buf, size_t len) | |
1962 | { | |
1963 | struct wpa_supplicant *wpa_s = ctx; | |
1964 | ||
f049052b | 1965 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); |
6fc6879b JM |
1966 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); |
1967 | ||
1ff73338 JM |
1968 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1969 | /* | |
1970 | * There is possible race condition between receiving the | |
1971 | * association event and the EAPOL frame since they are coming | |
1972 | * through different paths from the driver. In order to avoid | |
1973 | * issues in trying to process the EAPOL frame before receiving | |
1974 | * association information, lets queue it for processing until | |
1975 | * the association event is received. | |
1976 | */ | |
f049052b BG |
1977 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " |
1978 | "of received EAPOL frame"); | |
1ff73338 JM |
1979 | wpabuf_free(wpa_s->pending_eapol_rx); |
1980 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1981 | if (wpa_s->pending_eapol_rx) { | |
1982 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1983 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1984 | ETH_ALEN); | |
1985 | } | |
1986 | return; | |
1987 | } | |
1988 | ||
db149ac9 JM |
1989 | #ifdef CONFIG_AP |
1990 | if (wpa_s->ap_iface) { | |
1991 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
1992 | return; | |
1993 | } | |
1994 | #endif /* CONFIG_AP */ | |
1995 | ||
6fc6879b | 1996 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
f049052b BG |
1997 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " |
1998 | "no key management is configured"); | |
6fc6879b JM |
1999 | return; |
2000 | } | |
2001 | ||
2002 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 2003 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 2004 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
9c972abb JM |
2005 | wpa_s->wpa_state != WPA_COMPLETED) && |
2006 | (wpa_s->current_ssid == NULL || | |
2007 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
2008 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
2009 | wpa_supplicant_req_auth_timeout( | |
2010 | wpa_s, | |
56586197 | 2011 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
2012 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
2013 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
2014 | 70 : 10, 0); |
2015 | } | |
2016 | wpa_s->eapol_received++; | |
2017 | ||
2018 | if (wpa_s->countermeasures) { | |
f049052b BG |
2019 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " |
2020 | "EAPOL packet"); | |
6fc6879b JM |
2021 | return; |
2022 | } | |
2023 | ||
8be18440 JM |
2024 | #ifdef CONFIG_IBSS_RSN |
2025 | if (wpa_s->current_ssid && | |
d7dcba70 | 2026 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
8be18440 JM |
2027 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
2028 | return; | |
2029 | } | |
2030 | #endif /* CONFIG_IBSS_RSN */ | |
2031 | ||
6fc6879b JM |
2032 | /* Source address of the incoming EAPOL frame could be compared to the |
2033 | * current BSSID. However, it is possible that a centralized | |
2034 | * Authenticator could be using another MAC address than the BSSID of | |
2035 | * an AP, so just allow any address to be used for now. The replies are | |
2036 | * still sent to the current BSSID (if available), though. */ | |
2037 | ||
2038 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 2039 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
2040 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
2041 | return; | |
2042 | wpa_drv_poll(wpa_s); | |
c2a04078 | 2043 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 2044 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 2045 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
2046 | /* |
2047 | * Set portValid = TRUE here since we are going to skip 4-way | |
2048 | * handshake processing which would normally set portValid. We | |
2049 | * need this to allow the EAPOL state machines to be completed | |
2050 | * without going through EAPOL-Key handshake. | |
2051 | */ | |
2052 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2053 | } | |
2054 | } | |
2055 | ||
2056 | ||
bfba8deb | 2057 | int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) |
6fc6879b | 2058 | { |
6fc6879b JM |
2059 | if (wpa_s->driver->send_eapol) { |
2060 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2061 | if (addr) | |
2062 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
fdadd5fe JM |
2063 | } else if (!(wpa_s->drv_flags & |
2064 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
bfba8deb | 2065 | l2_packet_deinit(wpa_s->l2); |
6fc6879b JM |
2066 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, |
2067 | wpa_drv_get_mac_addr(wpa_s), | |
2068 | ETH_P_EAPOL, | |
2069 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2070 | if (wpa_s->l2 == NULL) | |
2071 | return -1; | |
fdadd5fe JM |
2072 | } else { |
2073 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2074 | if (addr) | |
2075 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
6fc6879b JM |
2076 | } |
2077 | ||
2078 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
f049052b | 2079 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); |
6fc6879b JM |
2080 | return -1; |
2081 | } | |
2082 | ||
f049052b BG |
2083 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, |
2084 | MAC2STR(wpa_s->own_addr)); | |
f98eb880 | 2085 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
6fc6879b | 2086 | |
bfba8deb JM |
2087 | return 0; |
2088 | } | |
2089 | ||
2090 | ||
2091 | /** | |
2092 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
2093 | * @wpa_s: Pointer to wpa_supplicant data | |
2094 | * Returns: 0 on success, -1 on failure | |
2095 | * | |
2096 | * This function is called to initialize driver interface parameters. | |
2097 | * wpa_drv_init() must have been called before this function to initialize the | |
2098 | * driver interface. | |
2099 | */ | |
2100 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
2101 | { | |
2102 | static int interface_count = 0; | |
2103 | ||
2104 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) | |
2105 | return -1; | |
2106 | ||
6fc6879b | 2107 | if (wpa_s->bridge_ifname[0]) { |
f049052b BG |
2108 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " |
2109 | "interface '%s'", wpa_s->bridge_ifname); | |
6fc6879b JM |
2110 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, |
2111 | wpa_s->own_addr, | |
2112 | ETH_P_EAPOL, | |
2113 | wpa_supplicant_rx_eapol, wpa_s, | |
2114 | 0); | |
2115 | if (wpa_s->l2_br == NULL) { | |
f049052b BG |
2116 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " |
2117 | "connection for the bridge interface '%s'", | |
2118 | wpa_s->bridge_ifname); | |
6fc6879b JM |
2119 | return -1; |
2120 | } | |
2121 | } | |
2122 | ||
6fc6879b JM |
2123 | wpa_clear_keys(wpa_s, NULL); |
2124 | ||
2125 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2126 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2127 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2128 | ||
f049052b | 2129 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
6fc6879b JM |
2130 | wpa_drv_flush_pmkid(wpa_s); |
2131 | ||
ba2a573c | 2132 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
74e259ec | 2133 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
6a90053c LC |
2134 | if (wpa_supplicant_delayed_sched_scan(wpa_s, interface_count, |
2135 | 100000)) | |
a4cba8f1 LC |
2136 | wpa_supplicant_req_scan(wpa_s, interface_count, |
2137 | 100000); | |
74e259ec JM |
2138 | interface_count++; |
2139 | } else | |
2140 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
6fc6879b JM |
2141 | |
2142 | return 0; | |
2143 | } | |
2144 | ||
2145 | ||
2146 | static int wpa_supplicant_daemon(const char *pid_file) | |
2147 | { | |
2148 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2149 | return os_daemonize(pid_file); | |
2150 | } | |
2151 | ||
2152 | ||
2153 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2154 | { | |
2155 | struct wpa_supplicant *wpa_s; | |
2156 | ||
2157 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2158 | if (wpa_s == NULL) | |
2159 | return NULL; | |
2160 | wpa_s->scan_req = 1; | |
67b9bd08 | 2161 | wpa_s->scan_interval = 5; |
c302f207 | 2162 | wpa_s->new_connection = 1; |
b22128ef | 2163 | wpa_s->parent = wpa_s; |
cbdf3507 | 2164 | wpa_s->sched_scanning = 0; |
6fc6879b JM |
2165 | |
2166 | return wpa_s; | |
2167 | } | |
2168 | ||
2169 | ||
2170 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
2171 | struct wpa_interface *iface) | |
2172 | { | |
362f781e JM |
2173 | const char *ifname, *driver; |
2174 | struct wpa_driver_capa capa; | |
2175 | ||
6fc6879b JM |
2176 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
2177 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
2178 | iface->confname ? iface->confname : "N/A", | |
2179 | iface->driver ? iface->driver : "default", | |
2180 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
2181 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
2182 | ||
6fc6879b JM |
2183 | if (iface->confname) { |
2184 | #ifdef CONFIG_BACKEND_FILE | |
2185 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
2186 | if (wpa_s->confname == NULL) { | |
2187 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
2188 | "for configuration file '%s'.", | |
2189 | iface->confname); | |
2190 | return -1; | |
2191 | } | |
2192 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
2193 | iface->confname, wpa_s->confname); | |
2194 | #else /* CONFIG_BACKEND_FILE */ | |
2195 | wpa_s->confname = os_strdup(iface->confname); | |
2196 | #endif /* CONFIG_BACKEND_FILE */ | |
2197 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
2198 | if (wpa_s->conf == NULL) { | |
2199 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
2200 | "configuration '%s'.", wpa_s->confname); | |
2201 | return -1; | |
2202 | } | |
2203 | ||
2204 | /* | |
2205 | * Override ctrl_interface and driver_param if set on command | |
2206 | * line. | |
2207 | */ | |
2208 | if (iface->ctrl_interface) { | |
2209 | os_free(wpa_s->conf->ctrl_interface); | |
2210 | wpa_s->conf->ctrl_interface = | |
2211 | os_strdup(iface->ctrl_interface); | |
2212 | } | |
2213 | ||
2214 | if (iface->driver_param) { | |
2215 | os_free(wpa_s->conf->driver_param); | |
2216 | wpa_s->conf->driver_param = | |
2217 | os_strdup(iface->driver_param); | |
2218 | } | |
2219 | } else | |
2220 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
2221 | iface->driver_param); | |
2222 | ||
2223 | if (wpa_s->conf == NULL) { | |
2224 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
2225 | return -1; | |
2226 | } | |
2227 | ||
2228 | if (iface->ifname == NULL) { | |
2229 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
2230 | return -1; | |
2231 | } | |
2232 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
2233 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
2234 | iface->ifname); | |
2235 | return -1; | |
2236 | } | |
2237 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
2238 | ||
2239 | if (iface->bridge_ifname) { | |
2240 | if (os_strlen(iface->bridge_ifname) >= | |
2241 | sizeof(wpa_s->bridge_ifname)) { | |
2242 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
2243 | "name '%s'.", iface->bridge_ifname); | |
2244 | return -1; | |
2245 | } | |
2246 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
2247 | sizeof(wpa_s->bridge_ifname)); | |
2248 | } | |
2249 | ||
6fc6879b JM |
2250 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2251 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2252 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2253 | ||
2254 | /* Initialize driver interface and register driver event handler before | |
2255 | * L2 receive handler so that association events are processed before | |
2256 | * EAPOL-Key packets if both become available for the same select() | |
2257 | * call. */ | |
362f781e JM |
2258 | driver = iface->driver; |
2259 | next_driver: | |
2260 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2261 | return -1; | |
2262 | ||
6fc6879b JM |
2263 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2264 | if (wpa_s->drv_priv == NULL) { | |
362f781e | 2265 | const char *pos; |
a5b9337f | 2266 | pos = driver ? os_strchr(driver, ',') : NULL; |
362f781e | 2267 | if (pos) { |
f049052b BG |
2268 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
2269 | "driver interface - try next driver wrapper"); | |
362f781e JM |
2270 | driver = pos + 1; |
2271 | goto next_driver; | |
2272 | } | |
f049052b BG |
2273 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " |
2274 | "interface"); | |
6fc6879b JM |
2275 | return -1; |
2276 | } | |
2277 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
f049052b BG |
2278 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " |
2279 | "driver_param '%s'", wpa_s->conf->driver_param); | |
6fc6879b JM |
2280 | return -1; |
2281 | } | |
2282 | ||
2283 | ifname = wpa_drv_get_ifname(wpa_s); | |
2284 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
f049052b BG |
2285 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " |
2286 | "interface name with '%s'", ifname); | |
6fc6879b JM |
2287 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); |
2288 | } | |
2289 | ||
2290 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2291 | return -1; | |
2292 | ||
2293 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2294 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2295 | NULL); | |
2296 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2297 | ||
2298 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2299 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2300 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
f049052b BG |
2301 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2302 | "dot11RSNAConfigPMKLifetime"); | |
6fc6879b JM |
2303 | return -1; |
2304 | } | |
2305 | ||
2306 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2307 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2308 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
f049052b | 2309 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
6fc6879b JM |
2310 | "dot11RSNAConfigPMKReauthThreshold"); |
2311 | return -1; | |
2312 | } | |
2313 | ||
2314 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2315 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2316 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
f049052b BG |
2317 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2318 | "dot11RSNAConfigSATimeout"); | |
6fc6879b JM |
2319 | return -1; |
2320 | } | |
2321 | ||
6bf731e8 CL |
2322 | wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, |
2323 | &wpa_s->hw.num_modes, | |
2324 | &wpa_s->hw.flags); | |
2325 | ||
814782b9 | 2326 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
c58ab8f2 | 2327 | wpa_s->drv_capa_known = 1; |
814782b9 | 2328 | wpa_s->drv_flags = capa.flags; |
4f73d88a | 2329 | wpa_s->probe_resp_offloads = capa.probe_resp_offloads; |
814782b9 | 2330 | wpa_s->max_scan_ssids = capa.max_scan_ssids; |
cbdf3507 LC |
2331 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; |
2332 | wpa_s->sched_scan_supported = capa.sched_scan_supported; | |
b59e6f26 | 2333 | wpa_s->max_match_sets = capa.max_match_sets; |
814782b9 | 2334 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; |
c4ea4c5c | 2335 | wpa_s->max_stations = capa.max_stations; |
814782b9 JM |
2336 | } |
2337 | if (wpa_s->max_remain_on_chan == 0) | |
2338 | wpa_s->max_remain_on_chan = 1000; | |
2339 | ||
6fc6879b JM |
2340 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
2341 | return -1; | |
2342 | ||
281ff0aa GP |
2343 | #ifdef CONFIG_TDLS |
2344 | if (wpa_tdls_init(wpa_s->wpa)) | |
2345 | return -1; | |
2346 | #endif /* CONFIG_TDLS */ | |
2347 | ||
315ce40a JM |
2348 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2349 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
f049052b | 2350 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); |
6d158490 LR |
2351 | return -1; |
2352 | } | |
2353 | ||
116654ce JM |
2354 | if (wpas_wps_init(wpa_s)) |
2355 | return -1; | |
2356 | ||
6fc6879b JM |
2357 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2358 | return -1; | |
2359 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2360 | ||
2361 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2362 | if (wpa_s->ctrl_iface == NULL) { | |
2363 | wpa_printf(MSG_ERROR, | |
2364 | "Failed to initialize control interface '%s'.\n" | |
2365 | "You may have another wpa_supplicant process " | |
2366 | "already running or the file was\n" | |
2367 | "left by an unclean termination of wpa_supplicant " | |
2368 | "in which case you will need\n" | |
2369 | "to manually remove this file before starting " | |
2370 | "wpa_supplicant again.\n", | |
2371 | wpa_s->conf->ctrl_interface); | |
2372 | return -1; | |
2373 | } | |
2374 | ||
04ea7b79 JM |
2375 | wpa_s->gas = gas_query_init(wpa_s); |
2376 | if (wpa_s->gas == NULL) { | |
2377 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); | |
2378 | return -1; | |
2379 | } | |
2380 | ||
b22128ef JM |
2381 | #ifdef CONFIG_P2P |
2382 | if (wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
f049052b | 2383 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); |
b22128ef JM |
2384 | return -1; |
2385 | } | |
2386 | #endif /* CONFIG_P2P */ | |
2387 | ||
83922c2d JM |
2388 | if (wpa_bss_init(wpa_s) < 0) |
2389 | return -1; | |
83922c2d | 2390 | |
6fc6879b JM |
2391 | return 0; |
2392 | } | |
2393 | ||
2394 | ||
2ee055b3 JM |
2395 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
2396 | int notify) | |
6fc6879b JM |
2397 | { |
2398 | if (wpa_s->drv_priv) { | |
2399 | wpa_supplicant_deauthenticate(wpa_s, | |
2400 | WLAN_REASON_DEAUTH_LEAVING); | |
2401 | ||
6fc6879b JM |
2402 | wpa_drv_set_countermeasures(wpa_s, 0); |
2403 | wpa_clear_keys(wpa_s, NULL); | |
2404 | } | |
2405 | ||
8e56d189 JM |
2406 | wpa_supplicant_cleanup(wpa_s); |
2407 | ||
2ee055b3 JM |
2408 | if (notify) |
2409 | wpas_notify_iface_removed(wpa_s); | |
6fc6879b | 2410 | |
6fc6879b JM |
2411 | if (wpa_s->drv_priv) |
2412 | wpa_drv_deinit(wpa_s); | |
2413 | } | |
2414 | ||
2415 | ||
2416 | /** | |
2417 | * wpa_supplicant_add_iface - Add a new network interface | |
2418 | * @global: Pointer to global data from wpa_supplicant_init() | |
2419 | * @iface: Interface configuration options | |
2420 | * Returns: Pointer to the created interface or %NULL on failure | |
2421 | * | |
2422 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2423 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2424 | * main event loop has been started. In addition, new interfaces can be added | |
2425 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2426 | * e.g., when a hotplug network adapter is inserted. | |
2427 | */ | |
2428 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2429 | struct wpa_interface *iface) | |
2430 | { | |
2431 | struct wpa_supplicant *wpa_s; | |
d27df100 | 2432 | struct wpa_interface t_iface; |
8e56d189 | 2433 | struct wpa_ssid *ssid; |
6fc6879b JM |
2434 | |
2435 | if (global == NULL || iface == NULL) | |
2436 | return NULL; | |
2437 | ||
2438 | wpa_s = wpa_supplicant_alloc(); | |
2439 | if (wpa_s == NULL) | |
2440 | return NULL; | |
2441 | ||
d8222ae3 JM |
2442 | wpa_s->global = global; |
2443 | ||
d27df100 JM |
2444 | t_iface = *iface; |
2445 | if (global->params.override_driver) { | |
2446 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
2447 | "('%s' -> '%s')", | |
2448 | iface->driver, global->params.override_driver); | |
2449 | t_iface.driver = global->params.override_driver; | |
2450 | } | |
2451 | if (global->params.override_ctrl_interface) { | |
2452 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
2453 | "ctrl_interface ('%s' -> '%s')", | |
2454 | iface->ctrl_interface, | |
2455 | global->params.override_ctrl_interface); | |
2456 | t_iface.ctrl_interface = | |
2457 | global->params.override_ctrl_interface; | |
2458 | } | |
2459 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
2460 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2461 | iface->ifname); | |
2ee055b3 | 2462 | wpa_supplicant_deinit_iface(wpa_s, 0); |
6fc6879b JM |
2463 | os_free(wpa_s); |
2464 | return NULL; | |
2465 | } | |
2466 | ||
dc461de4 WS |
2467 | /* Notify the control interfaces about new iface */ |
2468 | if (wpas_notify_iface_added(wpa_s)) { | |
2ee055b3 | 2469 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2470 | os_free(wpa_s); |
2471 | return NULL; | |
2472 | } | |
1bd3f426 | 2473 | |
8e56d189 JM |
2474 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
2475 | wpas_notify_network_added(wpa_s, ssid); | |
2476 | ||
6fc6879b JM |
2477 | wpa_s->next = global->ifaces; |
2478 | global->ifaces = wpa_s; | |
2479 | ||
f049052b | 2480 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); |
6fc6879b JM |
2481 | |
2482 | return wpa_s; | |
2483 | } | |
2484 | ||
2485 | ||
2486 | /** | |
2487 | * wpa_supplicant_remove_iface - Remove a network interface | |
2488 | * @global: Pointer to global data from wpa_supplicant_init() | |
2489 | * @wpa_s: Pointer to the network interface to be removed | |
2490 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2491 | * | |
2492 | * This function can be used to dynamically remove network interfaces from | |
2493 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2494 | * addition, this function is used to remove all remaining interfaces when | |
2495 | * %wpa_supplicant is terminated. | |
2496 | */ | |
2497 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
2498 | struct wpa_supplicant *wpa_s) | |
2499 | { | |
2500 | struct wpa_supplicant *prev; | |
2501 | ||
2502 | /* Remove interface from the global list of interfaces */ | |
2503 | prev = global->ifaces; | |
2504 | if (prev == wpa_s) { | |
2505 | global->ifaces = wpa_s->next; | |
2506 | } else { | |
2507 | while (prev && prev->next != wpa_s) | |
2508 | prev = prev->next; | |
2509 | if (prev == NULL) | |
2510 | return -1; | |
2511 | prev->next = wpa_s->next; | |
2512 | } | |
2513 | ||
f049052b | 2514 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); |
6fc6879b | 2515 | |
b22128ef JM |
2516 | if (global->p2p_group_formation == wpa_s) |
2517 | global->p2p_group_formation = NULL; | |
2ee055b3 | 2518 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2519 | os_free(wpa_s); |
2520 | ||
2521 | return 0; | |
2522 | } | |
2523 | ||
2524 | ||
cf83fb0b PS |
2525 | /** |
2526 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
2527 | * @wpa_s: Pointer to the network interface | |
2528 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
2529 | */ | |
2530 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
2531 | { | |
2532 | const char *eapol_method; | |
2533 | ||
2534 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
2535 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
2536 | return "NO-EAP"; | |
2537 | } | |
2538 | ||
2539 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
2540 | if (eapol_method == NULL) | |
2541 | return "UNKNOWN-EAP"; | |
2542 | ||
2543 | return eapol_method; | |
2544 | } | |
2545 | ||
2546 | ||
6fc6879b JM |
2547 | /** |
2548 | * wpa_supplicant_get_iface - Get a new network interface | |
2549 | * @global: Pointer to global data from wpa_supplicant_init() | |
2550 | * @ifname: Interface name | |
2551 | * Returns: Pointer to the interface or %NULL if not found | |
2552 | */ | |
2553 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2554 | const char *ifname) | |
2555 | { | |
2556 | struct wpa_supplicant *wpa_s; | |
2557 | ||
2558 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2559 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2560 | return wpa_s; | |
2561 | } | |
2562 | return NULL; | |
2563 | } | |
2564 | ||
2565 | ||
50b16da1 | 2566 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae BG |
2567 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) |
2568 | { | |
2569 | struct wpa_supplicant *wpa_s = ctx; | |
2570 | if (wpa_s == NULL) | |
2571 | return NULL; | |
2572 | return wpa_s->ifname; | |
2573 | } | |
50b16da1 | 2574 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae BG |
2575 | |
2576 | ||
6fc6879b JM |
2577 | /** |
2578 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2579 | * @params: Parameters for %wpa_supplicant | |
2580 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2581 | * | |
2582 | * This function is used to initialize %wpa_supplicant. After successful | |
2583 | * initialization, the returned data pointer can be used to add and remove | |
2584 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2585 | */ | |
2586 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2587 | { | |
2588 | struct wpa_global *global; | |
ac305589 | 2589 | int ret, i; |
6fc6879b JM |
2590 | |
2591 | if (params == NULL) | |
2592 | return NULL; | |
2593 | ||
39e7d718 JM |
2594 | #ifdef CONFIG_DRIVER_NDIS |
2595 | { | |
2596 | void driver_ndis_init_ops(void); | |
2597 | driver_ndis_init_ops(); | |
2598 | } | |
2599 | #endif /* CONFIG_DRIVER_NDIS */ | |
2600 | ||
50b16da1 | 2601 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae | 2602 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); |
50b16da1 | 2603 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae | 2604 | |
6fc6879b | 2605 | wpa_debug_open_file(params->wpa_debug_file_path); |
daa70d49 SL |
2606 | if (params->wpa_debug_syslog) |
2607 | wpa_debug_open_syslog(); | |
6fc6879b | 2608 | |
12760815 | 2609 | ret = eap_register_methods(); |
6fc6879b JM |
2610 | if (ret) { |
2611 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2612 | if (ret == -2) | |
2613 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2614 | "the same EAP type."); | |
2615 | return NULL; | |
2616 | } | |
2617 | ||
2618 | global = os_zalloc(sizeof(*global)); | |
2619 | if (global == NULL) | |
2620 | return NULL; | |
b22128ef JM |
2621 | dl_list_init(&global->p2p_srv_bonjour); |
2622 | dl_list_init(&global->p2p_srv_upnp); | |
6fc6879b JM |
2623 | global->params.daemonize = params->daemonize; |
2624 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2625 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2626 | if (params->pid_file) | |
2627 | global->params.pid_file = os_strdup(params->pid_file); | |
2628 | if (params->ctrl_interface) | |
2629 | global->params.ctrl_interface = | |
2630 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
2631 | if (params->override_driver) |
2632 | global->params.override_driver = | |
2633 | os_strdup(params->override_driver); | |
2634 | if (params->override_ctrl_interface) | |
2635 | global->params.override_ctrl_interface = | |
2636 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
2637 | wpa_debug_level = global->params.wpa_debug_level = |
2638 | params->wpa_debug_level; | |
2639 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2640 | params->wpa_debug_show_keys; | |
2641 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2642 | params->wpa_debug_timestamp; | |
2643 | ||
f19858f5 JM |
2644 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); |
2645 | ||
0456ea16 | 2646 | if (eloop_init()) { |
6fc6879b JM |
2647 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
2648 | wpa_supplicant_deinit(global); | |
2649 | return NULL; | |
2650 | } | |
2651 | ||
38e24575 | 2652 | random_init(params->entropy_file); |
d47fa330 | 2653 | |
6fc6879b JM |
2654 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); |
2655 | if (global->ctrl_iface == NULL) { | |
2656 | wpa_supplicant_deinit(global); | |
2657 | return NULL; | |
2658 | } | |
2659 | ||
dc461de4 WS |
2660 | if (wpas_notify_supplicant_initialized(global)) { |
2661 | wpa_supplicant_deinit(global); | |
2662 | return NULL; | |
6fc6879b JM |
2663 | } |
2664 | ||
c5121837 | 2665 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2666 | global->drv_count++; |
2667 | if (global->drv_count == 0) { | |
2668 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2669 | wpa_supplicant_deinit(global); | |
2670 | return NULL; | |
2671 | } | |
2672 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2673 | if (global->drv_priv == NULL) { | |
2674 | wpa_supplicant_deinit(global); | |
2675 | return NULL; | |
2676 | } | |
ac305589 | 2677 | |
6fc6879b JM |
2678 | return global; |
2679 | } | |
2680 | ||
2681 | ||
2682 | /** | |
2683 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2684 | * @global: Pointer to global data from wpa_supplicant_init() | |
2685 | * Returns: 0 after successful event loop run, -1 on failure | |
2686 | * | |
2687 | * This function starts the main event loop and continues running as long as | |
2688 | * there are any remaining events. In most cases, this function is running as | |
2689 | * long as the %wpa_supplicant process in still in use. | |
2690 | */ | |
2691 | int wpa_supplicant_run(struct wpa_global *global) | |
2692 | { | |
2693 | struct wpa_supplicant *wpa_s; | |
2694 | ||
2695 | if (global->params.daemonize && | |
2696 | wpa_supplicant_daemon(global->params.pid_file)) | |
2697 | return -1; | |
2698 | ||
2699 | if (global->params.wait_for_monitor) { | |
2700 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2701 | if (wpa_s->ctrl_iface) | |
2702 | wpa_supplicant_ctrl_iface_wait( | |
2703 | wpa_s->ctrl_iface); | |
2704 | } | |
2705 | ||
0456ea16 JM |
2706 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
2707 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
6fc6879b JM |
2708 | |
2709 | eloop_run(); | |
2710 | ||
2711 | return 0; | |
2712 | } | |
2713 | ||
2714 | ||
2715 | /** | |
2716 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2717 | * @global: Pointer to global data from wpa_supplicant_init() | |
2718 | * | |
2719 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2720 | * allocated resources. Remaining network interfaces will also be removed. | |
2721 | */ | |
2722 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2723 | { | |
ac305589 JM |
2724 | int i; |
2725 | ||
6fc6879b JM |
2726 | if (global == NULL) |
2727 | return; | |
2728 | ||
b22128ef JM |
2729 | #ifdef CONFIG_P2P |
2730 | wpas_p2p_deinit_global(global); | |
2731 | #endif /* CONFIG_P2P */ | |
2732 | ||
6fc6879b JM |
2733 | while (global->ifaces) |
2734 | wpa_supplicant_remove_iface(global, global->ifaces); | |
2735 | ||
2736 | if (global->ctrl_iface) | |
2737 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
2738 | |
2739 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
2740 | |
2741 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2742 | #ifdef CONFIG_AP |
2743 | eap_server_unregister_methods(); | |
2744 | #endif /* CONFIG_AP */ | |
6fc6879b | 2745 | |
c5121837 | 2746 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2747 | if (!global->drv_priv[i]) |
2748 | continue; | |
c5121837 | 2749 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2750 | } |
2751 | os_free(global->drv_priv); | |
2752 | ||
d47fa330 JM |
2753 | random_deinit(); |
2754 | ||
6fc6879b JM |
2755 | eloop_destroy(); |
2756 | ||
2757 | if (global->params.pid_file) { | |
2758 | os_daemonize_terminate(global->params.pid_file); | |
2759 | os_free(global->params.pid_file); | |
2760 | } | |
2761 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
2762 | os_free(global->params.override_driver); |
2763 | os_free(global->params.override_ctrl_interface); | |
6fc6879b JM |
2764 | |
2765 | os_free(global); | |
daa70d49 | 2766 | wpa_debug_close_syslog(); |
6fc6879b JM |
2767 | wpa_debug_close_file(); |
2768 | } | |
611aea7d JM |
2769 | |
2770 | ||
2771 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
2772 | { | |
849b5dc7 JM |
2773 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && |
2774 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { | |
2775 | char country[3]; | |
2776 | country[0] = wpa_s->conf->country[0]; | |
2777 | country[1] = wpa_s->conf->country[1]; | |
2778 | country[2] = '\0'; | |
2779 | if (wpa_drv_set_country(wpa_s, country) < 0) { | |
2780 | wpa_printf(MSG_ERROR, "Failed to set country code " | |
2781 | "'%s'", country); | |
2782 | } | |
2783 | } | |
2784 | ||
611aea7d JM |
2785 | #ifdef CONFIG_WPS |
2786 | wpas_wps_update_config(wpa_s); | |
2787 | #endif /* CONFIG_WPS */ | |
2788 | ||
b22128ef JM |
2789 | #ifdef CONFIG_P2P |
2790 | wpas_p2p_update_config(wpa_s); | |
2791 | #endif /* CONFIG_P2P */ | |
2792 | ||
611aea7d JM |
2793 | wpa_s->conf->changed_parameters = 0; |
2794 | } | |
2f9c6aa6 JM |
2795 | |
2796 | ||
0fb337c1 JM |
2797 | static void add_freq(int *freqs, int *num_freqs, int freq) |
2798 | { | |
2799 | int i; | |
2800 | ||
2801 | for (i = 0; i < *num_freqs; i++) { | |
2802 | if (freqs[i] == freq) | |
2803 | return; | |
2804 | } | |
2805 | ||
2806 | freqs[*num_freqs] = freq; | |
2807 | (*num_freqs)++; | |
2808 | } | |
2809 | ||
2810 | ||
2811 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
2812 | { | |
2813 | struct wpa_bss *bss, *cbss; | |
2814 | const int max_freqs = 10; | |
2815 | int *freqs; | |
2816 | int num_freqs = 0; | |
2817 | ||
2818 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
2819 | if (freqs == NULL) | |
2820 | return NULL; | |
2821 | ||
2822 | cbss = wpa_s->current_bss; | |
2823 | ||
2824 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
2825 | if (bss == cbss) | |
2826 | continue; | |
2827 | if (bss->ssid_len == cbss->ssid_len && | |
2828 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
2829 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
2830 | add_freq(freqs, &num_freqs, bss->freq); | |
2831 | if (num_freqs == max_freqs) | |
2832 | break; | |
2833 | } | |
2834 | } | |
2835 | ||
2836 | if (num_freqs == 0) { | |
2837 | os_free(freqs); | |
2838 | freqs = NULL; | |
2839 | } | |
2840 | ||
2841 | return freqs; | |
2842 | } | |
2843 | ||
2844 | ||
2845 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
2846 | { | |
2847 | int timeout; | |
2848 | int count; | |
2849 | int *freqs = NULL; | |
2850 | ||
2851 | /* | |
2852 | * Add the failed BSSID into the blacklist and speed up next scan | |
2853 | * attempt if there could be other APs that could accept association. | |
2854 | * The current blacklist count indicates how many times we have tried | |
2855 | * connecting to this AP and multiple attempts mean that other APs are | |
2856 | * either not available or has already been tried, so that we can start | |
2857 | * increasing the delay here to avoid constant scanning. | |
2858 | */ | |
2859 | count = wpa_blacklist_add(wpa_s, bssid); | |
2860 | if (count == 1 && wpa_s->current_bss) { | |
2861 | /* | |
2862 | * This BSS was not in the blacklist before. If there is | |
2863 | * another BSS available for the same ESS, we should try that | |
2864 | * next. Otherwise, we may as well try this one once more | |
2865 | * before allowing other, likely worse, ESSes to be considered. | |
2866 | */ | |
2867 | freqs = get_bss_freqs_in_ess(wpa_s); | |
2868 | if (freqs) { | |
f049052b BG |
2869 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " |
2870 | "has been seen; try it next"); | |
0fb337c1 JM |
2871 | wpa_blacklist_add(wpa_s, bssid); |
2872 | /* | |
2873 | * On the next scan, go through only the known channels | |
2874 | * used in this ESS based on previous scans to speed up | |
2875 | * common load balancing use case. | |
2876 | */ | |
2877 | os_free(wpa_s->next_scan_freqs); | |
2878 | wpa_s->next_scan_freqs = freqs; | |
2879 | } | |
2880 | } | |
2881 | ||
2882 | switch (count) { | |
2883 | case 1: | |
2884 | timeout = 100; | |
2885 | break; | |
2886 | case 2: | |
2887 | timeout = 500; | |
2888 | break; | |
2889 | case 3: | |
2890 | timeout = 1000; | |
2891 | break; | |
2892 | default: | |
2893 | timeout = 5000; | |
2894 | } | |
2895 | ||
2896 | /* | |
2897 | * TODO: if more than one possible AP is available in scan results, | |
2898 | * could try the other ones before requesting a new scan. | |
2899 | */ | |
2900 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
2901 | 1000 * (timeout % 1000)); | |
2902 | } | |
22628eca JM |
2903 | |
2904 | ||
2905 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) | |
2906 | { | |
2907 | return wpa_s->conf->ap_scan == 2 || | |
2908 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); | |
2909 | } |