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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" |
6fc6879b | 39 | #include "mlme.h" |
90973fb2 | 40 | #include "common/ieee802_11_defs.h" |
72044390 | 41 | #include "p2p/p2p.h" |
6fc6879b JM |
42 | #include "blacklist.h" |
43 | #include "wpas_glue.h" | |
116654ce | 44 | #include "wps_supplicant.h" |
11ef8d35 | 45 | #include "ibss_rsn.h" |
c2a04078 | 46 | #include "sme.h" |
04ea7b79 | 47 | #include "gas_query.h" |
1f1b62a0 | 48 | #include "ap.h" |
b22128ef | 49 | #include "p2p_supplicant.h" |
8bac466b | 50 | #include "notify.h" |
60b94c98 | 51 | #include "bgscan.h" |
83922c2d | 52 | #include "bss.h" |
9ba9fa07 | 53 | #include "scan.h" |
24f6497c | 54 | #include "offchannel.h" |
6fc6879b JM |
55 | |
56 | const char *wpa_supplicant_version = | |
57 | "wpa_supplicant v" VERSION_STR "\n" | |
9e074973 | 58 | "Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
59 | |
60 | const char *wpa_supplicant_license = | |
61 | "This program is free software. You can distribute it and/or modify it\n" | |
62 | "under the terms of the GNU General Public License version 2.\n" | |
63 | "\n" | |
64 | "Alternatively, this software may be distributed under the terms of the\n" | |
65 | "BSD license. See README and COPYING for more details.\n" | |
66 | #ifdef EAP_TLS_OPENSSL | |
67 | "\nThis product includes software developed by the OpenSSL Project\n" | |
68 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
69 | #endif /* EAP_TLS_OPENSSL */ | |
70 | ; | |
71 | ||
72 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
73 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
74 | const char *wpa_supplicant_full_license1 = | |
75 | "This program is free software; you can redistribute it and/or modify\n" | |
76 | "it under the terms of the GNU General Public License version 2 as\n" | |
77 | "published by the Free Software Foundation.\n" | |
78 | "\n" | |
79 | "This program is distributed in the hope that it will be useful,\n" | |
80 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
81 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
82 | "GNU General Public License for more details.\n" | |
83 | "\n"; | |
84 | const char *wpa_supplicant_full_license2 = | |
85 | "You should have received a copy of the GNU General Public License\n" | |
86 | "along with this program; if not, write to the Free Software\n" | |
87 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
88 | "\n" | |
89 | "Alternatively, this software may be distributed under the terms of the\n" | |
90 | "BSD license.\n" | |
91 | "\n" | |
92 | "Redistribution and use in source and binary forms, with or without\n" | |
93 | "modification, are permitted provided that the following conditions are\n" | |
94 | "met:\n" | |
95 | "\n"; | |
96 | const char *wpa_supplicant_full_license3 = | |
97 | "1. Redistributions of source code must retain the above copyright\n" | |
98 | " notice, this list of conditions and the following disclaimer.\n" | |
99 | "\n" | |
100 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
101 | " notice, this list of conditions and the following disclaimer in the\n" | |
102 | " documentation and/or other materials provided with the distribution.\n" | |
103 | "\n"; | |
104 | const char *wpa_supplicant_full_license4 = | |
105 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
106 | " names of its contributors may be used to endorse or promote products\n" | |
107 | " derived from this software without specific prior written permission.\n" | |
108 | "\n" | |
109 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
110 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
111 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
112 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
113 | const char *wpa_supplicant_full_license5 = | |
114 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
115 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
116 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
117 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
118 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
119 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
120 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
121 | "\n"; | |
122 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
123 | ||
6fc6879b JM |
124 | extern int wpa_debug_level; |
125 | extern int wpa_debug_show_keys; | |
126 | extern int wpa_debug_timestamp; | |
c5121837 | 127 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
128 | |
129 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 130 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
131 | { |
132 | int i, set = 0; | |
133 | ||
134 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
135 | if (ssid->wep_key_len[i] == 0) | |
136 | continue; | |
137 | ||
138 | set = 1; | |
0382097e | 139 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, |
da64c266 | 140 | i, i == ssid->wep_tx_keyidx, NULL, 0, |
6fc6879b JM |
141 | ssid->wep_key[i], ssid->wep_key_len[i]); |
142 | } | |
143 | ||
144 | return set; | |
145 | } | |
146 | ||
147 | ||
148 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
149 | struct wpa_ssid *ssid) | |
150 | { | |
151 | u8 key[32]; | |
152 | size_t keylen; | |
71934751 | 153 | enum wpa_alg alg; |
6fc6879b JM |
154 | u8 seq[6] = { 0 }; |
155 | ||
156 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
157 | * sending unicast and multicast packets. */ | |
158 | ||
d7dcba70 | 159 | if (ssid->mode != WPAS_MODE_IBSS) { |
f049052b BG |
160 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " |
161 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
6fc6879b JM |
162 | return -1; |
163 | } | |
164 | ||
165 | if (!ssid->psk_set) { | |
f049052b BG |
166 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " |
167 | "WPA-None"); | |
6fc6879b JM |
168 | return -1; |
169 | } | |
170 | ||
171 | switch (wpa_s->group_cipher) { | |
172 | case WPA_CIPHER_CCMP: | |
173 | os_memcpy(key, ssid->psk, 16); | |
174 | keylen = 16; | |
175 | alg = WPA_ALG_CCMP; | |
176 | break; | |
177 | case WPA_CIPHER_TKIP: | |
178 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
179 | os_memcpy(key, ssid->psk, 16 + 8); | |
180 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
181 | keylen = 32; | |
182 | alg = WPA_ALG_TKIP; | |
183 | break; | |
184 | default: | |
f049052b BG |
185 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " |
186 | "WPA-None", wpa_s->group_cipher); | |
6fc6879b JM |
187 | return -1; |
188 | } | |
189 | ||
190 | /* TODO: should actually remember the previously used seq#, both for TX | |
191 | * and RX from each STA.. */ | |
192 | ||
0382097e | 193 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); |
6fc6879b JM |
194 | } |
195 | ||
196 | ||
197 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
198 | { | |
199 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
200 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 201 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
202 | bssid = wpa_s->pending_bssid; |
203 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
204 | MAC2STR(bssid)); | |
205 | wpa_blacklist_add(wpa_s, bssid); | |
206 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
207 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
208 | wpa_s->reassociate = 1; | |
48b84f18 BG |
209 | |
210 | /* | |
211 | * If we timed out, the AP or the local radio may be busy. | |
212 | * So, wait a second until scanning again. | |
213 | */ | |
214 | wpa_supplicant_req_scan(wpa_s, 1, 0); | |
6fc6879b JM |
215 | } |
216 | ||
217 | ||
218 | /** | |
219 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
220 | * @wpa_s: Pointer to wpa_supplicant data | |
221 | * @sec: Number of seconds after which to time out authentication | |
222 | * @usec: Number of microseconds after which to time out authentication | |
223 | * | |
224 | * This function is used to schedule a timeout for the current authentication | |
225 | * attempt. | |
226 | */ | |
227 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
228 | int sec, int usec) | |
229 | { | |
c2a04078 JM |
230 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
231 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
232 | return; |
233 | ||
f049052b | 234 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " |
6fc6879b JM |
235 | "%d usec", sec, usec); |
236 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
237 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
238 | } | |
239 | ||
240 | ||
241 | /** | |
242 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
243 | * @wpa_s: Pointer to wpa_supplicant data | |
244 | * | |
245 | * This function is used to cancel authentication timeout scheduled with | |
246 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
247 | * been completed. | |
248 | */ | |
249 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
250 | { | |
f049052b | 251 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); |
6fc6879b JM |
252 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
253 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
254 | } | |
255 | ||
256 | ||
257 | /** | |
258 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
259 | * @wpa_s: Pointer to wpa_supplicant data | |
260 | * | |
261 | * This function is used to configure EAPOL state machine based on the selected | |
262 | * authentication mode. | |
263 | */ | |
264 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
265 | { | |
266 | #ifdef IEEE8021X_EAPOL | |
267 | struct eapol_config eapol_conf; | |
268 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
269 | ||
53895c3b | 270 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 271 | if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
272 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
273 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
274 | /* | |
275 | * RSN IBSS authentication is per-STA and we can disable the | |
276 | * per-BSSID EAPOL authentication. | |
277 | */ | |
278 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
279 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
280 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
281 | return; | |
282 | } | |
283 | #endif /* CONFIG_IBSS_RSN */ | |
284 | ||
0a40ec6a JM |
285 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
286 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
287 | ||
6fc6879b JM |
288 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
289 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
290 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
291 | else | |
292 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
293 | ||
294 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
295 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
296 | eapol_conf.accept_802_1x_keys = 1; | |
297 | eapol_conf.required_keys = 0; | |
298 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
299 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
300 | } | |
301 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
302 | eapol_conf.required_keys |= | |
303 | EAPOL_REQUIRE_KEY_BROADCAST; | |
304 | } | |
305 | ||
c2a04078 | 306 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 307 | eapol_conf.required_keys = 0; |
6fc6879b JM |
308 | } |
309 | if (wpa_s->conf) | |
310 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
311 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
312 | eapol_conf.eap_disabled = |
313 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
314 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
315 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
316 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
317 | #endif /* IEEE8021X_EAPOL */ | |
318 | } | |
319 | ||
320 | ||
321 | /** | |
322 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
323 | * @wpa_s: Pointer to wpa_supplicant data | |
324 | * @ssid: Configuration data for the network | |
325 | * | |
326 | * This function is used to configure WPA state machine and related parameters | |
327 | * to a mode where WPA is not enabled. This is called as part of the | |
328 | * authentication configuration when the selected network does not use WPA. | |
329 | */ | |
330 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
331 | struct wpa_ssid *ssid) | |
332 | { | |
333 | int i; | |
334 | ||
ad08c363 JM |
335 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
336 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
337 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
338 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
339 | else | |
340 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
341 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
342 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
343 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
344 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
345 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
346 | wpa_s->mgmt_group_cipher = 0; | |
347 | ||
348 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
349 | if (ssid->wep_key_len[i] > 5) { | |
350 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
351 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
352 | break; | |
353 | } else if (ssid->wep_key_len[i] > 0) { | |
354 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
355 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
356 | break; | |
357 | } | |
358 | } | |
359 | ||
360 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
361 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
362 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
363 | wpa_s->pairwise_cipher); | |
364 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
365 | #ifdef CONFIG_IEEE80211W | |
366 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
367 | wpa_s->mgmt_group_cipher); | |
368 | #endif /* CONFIG_IEEE80211W */ | |
369 | ||
370 | pmksa_cache_clear_current(wpa_s->wpa); | |
371 | } | |
372 | ||
373 | ||
374 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
375 | { | |
60b94c98 | 376 | bgscan_deinit(wpa_s); |
6fc6879b JM |
377 | scard_deinit(wpa_s->scard); |
378 | wpa_s->scard = NULL; | |
379 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
380 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
381 | l2_packet_deinit(wpa_s->l2); | |
382 | wpa_s->l2 = NULL; | |
383 | if (wpa_s->l2_br) { | |
384 | l2_packet_deinit(wpa_s->l2_br); | |
385 | wpa_s->l2_br = NULL; | |
386 | } | |
387 | ||
388 | if (wpa_s->ctrl_iface) { | |
389 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
390 | wpa_s->ctrl_iface = NULL; | |
391 | } | |
392 | if (wpa_s->conf != NULL) { | |
8e56d189 JM |
393 | struct wpa_ssid *ssid; |
394 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
395 | wpas_notify_network_removed(wpa_s, ssid); | |
6fc6879b JM |
396 | wpa_config_free(wpa_s->conf); |
397 | wpa_s->conf = NULL; | |
398 | } | |
399 | ||
400 | os_free(wpa_s->confname); | |
401 | wpa_s->confname = NULL; | |
402 | ||
403 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
404 | eapol_sm_deinit(wpa_s->eapol); | |
405 | wpa_s->eapol = NULL; | |
406 | ||
407 | rsn_preauth_deinit(wpa_s->wpa); | |
408 | ||
281ff0aa GP |
409 | #ifdef CONFIG_TDLS |
410 | wpa_tdls_deinit(wpa_s->wpa); | |
411 | #endif /* CONFIG_TDLS */ | |
412 | ||
6fc6879b JM |
413 | pmksa_candidate_free(wpa_s->wpa); |
414 | wpa_sm_deinit(wpa_s->wpa); | |
415 | wpa_s->wpa = NULL; | |
416 | wpa_blacklist_clear(wpa_s); | |
417 | ||
83922c2d | 418 | wpa_bss_deinit(wpa_s); |
6fc6879b JM |
419 | |
420 | wpa_supplicant_cancel_scan(wpa_s); | |
421 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
422 | ||
423 | ieee80211_sta_deinit(wpa_s); | |
116654ce JM |
424 | |
425 | wpas_wps_deinit(wpa_s); | |
11ef8d35 | 426 | |
1ff73338 JM |
427 | wpabuf_free(wpa_s->pending_eapol_rx); |
428 | wpa_s->pending_eapol_rx = NULL; | |
429 | ||
11ef8d35 JM |
430 | #ifdef CONFIG_IBSS_RSN |
431 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
432 | wpa_s->ibss_rsn = NULL; | |
433 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 | 434 | |
e29853bb | 435 | sme_deinit(wpa_s); |
2d5b792d JM |
436 | |
437 | #ifdef CONFIG_AP | |
438 | wpa_supplicant_ap_deinit(wpa_s); | |
439 | #endif /* CONFIG_AP */ | |
b22128ef JM |
440 | |
441 | #ifdef CONFIG_P2P | |
442 | wpas_p2p_deinit(wpa_s); | |
443 | #endif /* CONFIG_P2P */ | |
f47d639d | 444 | |
24f6497c JM |
445 | #ifdef CONFIG_OFFCHANNEL |
446 | offchannel_deinit(wpa_s); | |
447 | #endif /* CONFIG_OFFCHANNEL */ | |
448 | ||
a4cba8f1 LC |
449 | wpa_supplicant_cancel_sched_scan(wpa_s); |
450 | ||
f47d639d JM |
451 | os_free(wpa_s->next_scan_freqs); |
452 | wpa_s->next_scan_freqs = NULL; | |
04ea7b79 JM |
453 | |
454 | gas_query_deinit(wpa_s->gas); | |
455 | wpa_s->gas = NULL; | |
6fc6879b JM |
456 | } |
457 | ||
458 | ||
459 | /** | |
460 | * wpa_clear_keys - Clear keys configured for the driver | |
461 | * @wpa_s: Pointer to wpa_supplicant data | |
462 | * @addr: Previously used BSSID or %NULL if not available | |
463 | * | |
464 | * This function clears the encryption keys that has been previously configured | |
465 | * for the driver. | |
466 | */ | |
467 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
468 | { | |
6fc6879b JM |
469 | if (wpa_s->keys_cleared) { |
470 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
471 | * timing issues with keys being cleared just before new keys | |
472 | * are set or just after association or something similar. This | |
473 | * shows up in group key handshake failing often because of the | |
474 | * client not receiving the first encrypted packets correctly. | |
475 | * Skipping some of the extra key clearing steps seems to help | |
476 | * in completing group key handshake more reliably. */ | |
f049052b BG |
477 | wpa_dbg(wpa_s, MSG_DEBUG, "No keys have been configured - " |
478 | "skip key clearing"); | |
6fc6879b JM |
479 | return; |
480 | } | |
481 | ||
482 | /* MLME-DELETEKEYS.request */ | |
0382097e JM |
483 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 0, 0, NULL, 0, NULL, 0); |
484 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 1, 0, NULL, 0, NULL, 0); | |
485 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 2, 0, NULL, 0, NULL, 0); | |
486 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 | 487 | #ifdef CONFIG_IEEE80211W |
0382097e JM |
488 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 4, 0, NULL, 0, NULL, 0); |
489 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 5, 0, NULL, 0, NULL, 0); | |
0e27f655 | 490 | #endif /* CONFIG_IEEE80211W */ |
6fc6879b JM |
491 | if (addr) { |
492 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
493 | 0); | |
494 | /* MLME-SETPROTECTION.request(None) */ | |
495 | wpa_drv_mlme_setprotection( | |
496 | wpa_s, addr, | |
497 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
498 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
499 | } | |
500 | wpa_s->keys_cleared = 1; | |
501 | } | |
502 | ||
503 | ||
504 | /** | |
505 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
506 | * @state: State (wpa_state; WPA_*) | |
507 | * Returns: The state name as a printable text string | |
508 | */ | |
71934751 | 509 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
6fc6879b JM |
510 | { |
511 | switch (state) { | |
512 | case WPA_DISCONNECTED: | |
513 | return "DISCONNECTED"; | |
514 | case WPA_INACTIVE: | |
515 | return "INACTIVE"; | |
8401a6b0 JM |
516 | case WPA_INTERFACE_DISABLED: |
517 | return "INTERFACE_DISABLED"; | |
6fc6879b JM |
518 | case WPA_SCANNING: |
519 | return "SCANNING"; | |
c2a04078 JM |
520 | case WPA_AUTHENTICATING: |
521 | return "AUTHENTICATING"; | |
6fc6879b JM |
522 | case WPA_ASSOCIATING: |
523 | return "ASSOCIATING"; | |
524 | case WPA_ASSOCIATED: | |
525 | return "ASSOCIATED"; | |
526 | case WPA_4WAY_HANDSHAKE: | |
527 | return "4WAY_HANDSHAKE"; | |
528 | case WPA_GROUP_HANDSHAKE: | |
529 | return "GROUP_HANDSHAKE"; | |
530 | case WPA_COMPLETED: | |
531 | return "COMPLETED"; | |
532 | default: | |
533 | return "UNKNOWN"; | |
534 | } | |
535 | } | |
536 | ||
537 | ||
cfe53c9a PS |
538 | #ifdef CONFIG_BGSCAN |
539 | ||
540 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
541 | { | |
0096c427 JM |
542 | if (wpas_driver_bss_selection(wpa_s)) |
543 | return; | |
cfe53c9a PS |
544 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) |
545 | return; | |
546 | ||
547 | bgscan_deinit(wpa_s); | |
548 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { | |
549 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { | |
550 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
551 | "bgscan"); | |
552 | /* | |
553 | * Live without bgscan; it is only used as a roaming | |
554 | * optimization, so the initial connection is not | |
555 | * affected. | |
556 | */ | |
557 | } else | |
558 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
559 | } else | |
560 | wpa_s->bgscan_ssid = NULL; | |
561 | } | |
562 | ||
563 | ||
564 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
565 | { | |
566 | if (wpa_s->bgscan_ssid != NULL) { | |
567 | bgscan_deinit(wpa_s); | |
568 | wpa_s->bgscan_ssid = NULL; | |
569 | } | |
570 | } | |
571 | ||
572 | #endif /* CONFIG_BGSCAN */ | |
573 | ||
574 | ||
6fc6879b JM |
575 | /** |
576 | * wpa_supplicant_set_state - Set current connection state | |
577 | * @wpa_s: Pointer to wpa_supplicant data | |
578 | * @state: The new connection state | |
579 | * | |
580 | * This function is called whenever the connection state changes, e.g., | |
581 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
582 | */ | |
71934751 JM |
583 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
584 | enum wpa_states state) | |
6fc6879b | 585 | { |
27f43d8d MH |
586 | enum wpa_states old_state = wpa_s->wpa_state; |
587 | ||
f049052b BG |
588 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", |
589 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
590 | wpa_supplicant_state_txt(state)); | |
6fc6879b | 591 | |
cb8564b1 DW |
592 | if (state != WPA_SCANNING) |
593 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
594 | ||
6fc6879b JM |
595 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
596 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
597 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
598 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
599 | MACSTR " completed %s [id=%d id_str=%s]", | |
600 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
601 | "(reauth)" : "(auth)", | |
602 | ssid ? ssid->id : -1, | |
603 | ssid && ssid->id_str ? ssid->id_str : ""); | |
604 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
605 | wpa_s->new_connection = 0; | |
606 | wpa_s->reassociated_connection = 1; | |
607 | wpa_drv_set_operstate(wpa_s, 1); | |
99ac2913 FF |
608 | #ifndef IEEE8021X_EAPOL |
609 | wpa_drv_set_supp_port(wpa_s, 1); | |
610 | #endif /* IEEE8021X_EAPOL */ | |
17a4734d | 611 | wpa_s->after_wps = 0; |
b22128ef JM |
612 | #ifdef CONFIG_P2P |
613 | wpas_p2p_completed(wpa_s); | |
614 | #endif /* CONFIG_P2P */ | |
6fc6879b JM |
615 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
616 | state == WPA_ASSOCIATED) { | |
617 | wpa_s->new_connection = 1; | |
618 | wpa_drv_set_operstate(wpa_s, 0); | |
99ac2913 FF |
619 | #ifndef IEEE8021X_EAPOL |
620 | wpa_drv_set_supp_port(wpa_s, 0); | |
621 | #endif /* IEEE8021X_EAPOL */ | |
6fc6879b JM |
622 | } |
623 | wpa_s->wpa_state = state; | |
27f43d8d | 624 | |
cfe53c9a PS |
625 | #ifdef CONFIG_BGSCAN |
626 | if (state == WPA_COMPLETED) | |
627 | wpa_supplicant_start_bgscan(wpa_s); | |
628 | else | |
629 | wpa_supplicant_stop_bgscan(wpa_s); | |
630 | #endif /* CONFIG_BGSCAN */ | |
631 | ||
5bbf9f10 | 632 | if (wpa_s->wpa_state != old_state) { |
27f43d8d | 633 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
5bbf9f10 PS |
634 | |
635 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
636 | old_state == WPA_COMPLETED) | |
637 | wpas_notify_auth_changed(wpa_s); | |
638 | } | |
6fc6879b JM |
639 | } |
640 | ||
641 | ||
1a1bf008 JM |
642 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
643 | { | |
644 | int pending = 0; | |
645 | #ifdef CONFIG_WPS | |
646 | struct wpa_supplicant *wpa_s = global->ifaces; | |
647 | while (wpa_s) { | |
648 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
649 | pending = 1; | |
650 | wpa_s = wpa_s->next; | |
651 | } | |
652 | #endif /* CONFIG_WPS */ | |
653 | if (pending) | |
654 | return; | |
655 | eloop_terminate(); | |
656 | } | |
657 | ||
658 | ||
0456ea16 | 659 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
6fc6879b | 660 | { |
0456ea16 | 661 | struct wpa_global *global = signal_ctx; |
6fc6879b JM |
662 | struct wpa_supplicant *wpa_s; |
663 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
664 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " | |
665 | "received", sig); | |
666 | } | |
1a1bf008 | 667 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
668 | } |
669 | ||
670 | ||
b22128ef | 671 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) |
6fc6879b | 672 | { |
71934751 | 673 | enum wpa_states old_state = wpa_s->wpa_state; |
27f43d8d | 674 | |
6fc6879b JM |
675 | wpa_s->pairwise_cipher = 0; |
676 | wpa_s->group_cipher = 0; | |
677 | wpa_s->mgmt_group_cipher = 0; | |
678 | wpa_s->key_mgmt = 0; | |
8401a6b0 JM |
679 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
680 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
27f43d8d MH |
681 | |
682 | if (wpa_s->wpa_state != old_state) | |
683 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
684 | } |
685 | ||
686 | ||
687 | /** | |
688 | * wpa_supplicant_reload_configuration - Reload configuration data | |
689 | * @wpa_s: Pointer to wpa_supplicant data | |
690 | * Returns: 0 on success or -1 if configuration parsing failed | |
691 | * | |
692 | * This function can be used to request that the configuration data is reloaded | |
693 | * (e.g., after configuration file change). This function is reloading | |
694 | * configuration only for one interface, so this may need to be called multiple | |
695 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
696 | * interfaces need reconfiguration. | |
697 | */ | |
698 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
699 | { | |
700 | struct wpa_config *conf; | |
701 | int reconf_ctrl; | |
8bac466b JM |
702 | int old_ap_scan; |
703 | ||
6fc6879b JM |
704 | if (wpa_s->confname == NULL) |
705 | return -1; | |
706 | conf = wpa_config_read(wpa_s->confname); | |
707 | if (conf == NULL) { | |
708 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
709 | "file '%s' - exiting", wpa_s->confname); | |
710 | return -1; | |
711 | } | |
611aea7d | 712 | conf->changed_parameters = (unsigned int) -1; |
6fc6879b JM |
713 | |
714 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
715 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
716 | os_strcmp(conf->ctrl_interface, | |
717 | wpa_s->conf->ctrl_interface) != 0); | |
718 | ||
719 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
720 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
721 | wpa_s->ctrl_iface = NULL; | |
722 | } | |
723 | ||
724 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
7b7ce8aa JM |
725 | if (wpa_s->current_ssid) { |
726 | wpa_supplicant_deauthenticate(wpa_s, | |
727 | WLAN_REASON_DEAUTH_LEAVING); | |
728 | } | |
8bac466b | 729 | |
6fc6879b JM |
730 | /* |
731 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
732 | * pkcs11_engine_path, pkcs11_module_path. | |
733 | */ | |
56586197 | 734 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
735 | /* |
736 | * Clear forced success to clear EAP state for next | |
737 | * authentication. | |
738 | */ | |
739 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
740 | } | |
741 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
742 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
d8a790b9 | 743 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); |
6fc6879b JM |
744 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); |
745 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
746 | |
747 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
748 | wpa_config_free(wpa_s->conf); |
749 | wpa_s->conf = conf; | |
8bac466b JM |
750 | if (old_ap_scan != wpa_s->conf->ap_scan) |
751 | wpas_notify_ap_scan_changed(wpa_s); | |
752 | ||
6fc6879b JM |
753 | if (reconf_ctrl) |
754 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
755 | ||
611aea7d JM |
756 | wpa_supplicant_update_config(wpa_s); |
757 | ||
6fc6879b | 758 | wpa_supplicant_clear_status(wpa_s); |
43a38635 JM |
759 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
760 | wpa_s->reassociate = 1; | |
761 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
762 | } | |
f049052b | 763 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); |
6fc6879b JM |
764 | return 0; |
765 | } | |
766 | ||
767 | ||
0456ea16 | 768 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
6fc6879b | 769 | { |
0456ea16 | 770 | struct wpa_global *global = signal_ctx; |
6fc6879b | 771 | struct wpa_supplicant *wpa_s; |
6fc6879b | 772 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
f049052b BG |
773 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", |
774 | sig); | |
6fc6879b | 775 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { |
1a1bf008 | 776 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
777 | } |
778 | } | |
779 | } | |
780 | ||
781 | ||
508545f3 | 782 | enum wpa_cipher cipher_suite2driver(int cipher) |
6fc6879b JM |
783 | { |
784 | switch (cipher) { | |
785 | case WPA_CIPHER_NONE: | |
786 | return CIPHER_NONE; | |
787 | case WPA_CIPHER_WEP40: | |
788 | return CIPHER_WEP40; | |
789 | case WPA_CIPHER_WEP104: | |
790 | return CIPHER_WEP104; | |
791 | case WPA_CIPHER_CCMP: | |
792 | return CIPHER_CCMP; | |
793 | case WPA_CIPHER_TKIP: | |
794 | default: | |
795 | return CIPHER_TKIP; | |
796 | } | |
797 | } | |
798 | ||
799 | ||
508545f3 | 800 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
6fc6879b JM |
801 | { |
802 | switch (key_mgmt) { | |
803 | case WPA_KEY_MGMT_NONE: | |
804 | return KEY_MGMT_NONE; | |
805 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
806 | return KEY_MGMT_802_1X_NO_WPA; | |
807 | case WPA_KEY_MGMT_IEEE8021X: | |
808 | return KEY_MGMT_802_1X; | |
809 | case WPA_KEY_MGMT_WPA_NONE: | |
810 | return KEY_MGMT_WPA_NONE; | |
811 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
812 | return KEY_MGMT_FT_802_1X; | |
813 | case WPA_KEY_MGMT_FT_PSK: | |
814 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
815 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
816 | return KEY_MGMT_802_1X_SHA256; | |
817 | case WPA_KEY_MGMT_PSK_SHA256: | |
818 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
819 | case WPA_KEY_MGMT_WPS: |
820 | return KEY_MGMT_WPS; | |
6fc6879b JM |
821 | case WPA_KEY_MGMT_PSK: |
822 | default: | |
823 | return KEY_MGMT_PSK; | |
824 | } | |
825 | } | |
826 | ||
827 | ||
828 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
829 | struct wpa_ssid *ssid, | |
830 | struct wpa_ie_data *ie) | |
831 | { | |
832 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
833 | if (ret) { | |
834 | if (ret == -2) { | |
835 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
836 | "from association info"); | |
837 | } | |
838 | return -1; | |
839 | } | |
840 | ||
f049052b BG |
841 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " |
842 | "cipher suites"); | |
6fc6879b JM |
843 | if (!(ie->group_cipher & ssid->group_cipher)) { |
844 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
845 | "cipher 0x%x (mask 0x%x) - reject", | |
846 | ie->group_cipher, ssid->group_cipher); | |
847 | return -1; | |
848 | } | |
849 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
850 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
851 | "cipher 0x%x (mask 0x%x) - reject", | |
852 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
853 | return -1; | |
854 | } | |
855 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
856 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
857 | "management 0x%x (mask 0x%x) - reject", | |
858 | ie->key_mgmt, ssid->key_mgmt); | |
859 | return -1; | |
860 | } | |
861 | ||
862 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 863 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
70f8cc8e | 864 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
6fc6879b JM |
865 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
866 | "that does not support management frame protection - " | |
867 | "reject"); | |
868 | return -1; | |
869 | } | |
870 | #endif /* CONFIG_IEEE80211W */ | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
875 | ||
876 | /** | |
877 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
878 | * @wpa_s: Pointer to wpa_supplicant data | |
879 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
880 | * @ssid: Configuration data for the selected network | |
881 | * @wpa_ie: Buffer for the WPA/RSN IE | |
882 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
883 | * used buffer length in case the functions returns success. | |
884 | * Returns: 0 on success or -1 on failure | |
885 | * | |
886 | * This function is used to configure authentication and encryption parameters | |
887 | * based on the network configuration and scan result for the selected BSS (if | |
888 | * available). | |
889 | */ | |
890 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 891 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
6fc6879b JM |
892 | u8 *wpa_ie, size_t *wpa_ie_len) |
893 | { | |
894 | struct wpa_ie_data ie; | |
895 | int sel, proto; | |
896 | const u8 *bss_wpa, *bss_rsn; | |
897 | ||
898 | if (bss) { | |
6fa81a3b JM |
899 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
900 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
6fc6879b JM |
901 | } else |
902 | bss_wpa = bss_rsn = NULL; | |
903 | ||
904 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
905 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
906 | (ie.group_cipher & ssid->group_cipher) && | |
907 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
908 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 909 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); |
6fc6879b JM |
910 | proto = WPA_PROTO_RSN; |
911 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
912 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
913 | (ie.group_cipher & ssid->group_cipher) && | |
914 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
915 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 916 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); |
6fc6879b JM |
917 | proto = WPA_PROTO_WPA; |
918 | } else if (bss) { | |
919 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
920 | return -1; | |
921 | } else { | |
922 | if (ssid->proto & WPA_PROTO_RSN) | |
923 | proto = WPA_PROTO_RSN; | |
924 | else | |
925 | proto = WPA_PROTO_WPA; | |
926 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
927 | os_memset(&ie, 0, sizeof(ie)); | |
928 | ie.group_cipher = ssid->group_cipher; | |
929 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
930 | ie.key_mgmt = ssid->key_mgmt; | |
931 | #ifdef CONFIG_IEEE80211W | |
932 | ie.mgmt_group_cipher = | |
70f8cc8e | 933 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
6fc6879b JM |
934 | WPA_CIPHER_AES_128_CMAC : 0; |
935 | #endif /* CONFIG_IEEE80211W */ | |
f049052b BG |
936 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " |
937 | "based on configuration"); | |
6fc6879b JM |
938 | } else |
939 | proto = ie.proto; | |
940 | } | |
941 | ||
f049052b BG |
942 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " |
943 | "pairwise %d key_mgmt %d proto %d", | |
944 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
6fc6879b JM |
945 | #ifdef CONFIG_IEEE80211W |
946 | if (ssid->ieee80211w) { | |
f049052b BG |
947 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", |
948 | ie.mgmt_group_cipher); | |
6fc6879b JM |
949 | } |
950 | #endif /* CONFIG_IEEE80211W */ | |
951 | ||
64fa840a | 952 | wpa_s->wpa_proto = proto; |
6fc6879b JM |
953 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); |
954 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
955 | !!(ssid->proto & WPA_PROTO_RSN)); | |
956 | ||
957 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
958 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
959 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
960 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
961 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
962 | return -1; | |
963 | } | |
964 | ||
965 | sel = ie.group_cipher & ssid->group_cipher; | |
966 | if (sel & WPA_CIPHER_CCMP) { | |
967 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
f049052b | 968 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); |
6fc6879b JM |
969 | } else if (sel & WPA_CIPHER_TKIP) { |
970 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
f049052b | 971 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); |
6fc6879b JM |
972 | } else if (sel & WPA_CIPHER_WEP104) { |
973 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
f049052b | 974 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); |
6fc6879b JM |
975 | } else if (sel & WPA_CIPHER_WEP40) { |
976 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
f049052b | 977 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); |
6fc6879b | 978 | } else { |
f049052b BG |
979 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " |
980 | "cipher"); | |
6fc6879b JM |
981 | return -1; |
982 | } | |
983 | ||
984 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
985 | if (sel & WPA_CIPHER_CCMP) { | |
986 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
f049052b | 987 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); |
6fc6879b JM |
988 | } else if (sel & WPA_CIPHER_TKIP) { |
989 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
f049052b | 990 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); |
6fc6879b JM |
991 | } else if (sel & WPA_CIPHER_NONE) { |
992 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
f049052b | 993 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); |
6fc6879b | 994 | } else { |
f049052b BG |
995 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " |
996 | "cipher"); | |
6fc6879b JM |
997 | return -1; |
998 | } | |
999 | ||
1000 | sel = ie.key_mgmt & ssid->key_mgmt; | |
1001 | if (0) { | |
1002 | #ifdef CONFIG_IEEE80211R | |
1003 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
1004 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
f049052b | 1005 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); |
6fc6879b JM |
1006 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { |
1007 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
f049052b | 1008 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); |
6fc6879b | 1009 | #endif /* CONFIG_IEEE80211R */ |
56586197 JM |
1010 | #ifdef CONFIG_IEEE80211W |
1011 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
1012 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
f049052b | 1013 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1014 | "WPA: using KEY_MGMT 802.1X with SHA256"); |
1015 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1016 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
f049052b | 1017 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1018 | "WPA: using KEY_MGMT PSK with SHA256"); |
1019 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1020 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
1021 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
f049052b | 1022 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); |
6fc6879b JM |
1023 | } else if (sel & WPA_KEY_MGMT_PSK) { |
1024 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
f049052b | 1025 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); |
6fc6879b JM |
1026 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { |
1027 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
f049052b | 1028 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); |
6fc6879b | 1029 | } else { |
f049052b BG |
1030 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " |
1031 | "authenticated key management type"); | |
6fc6879b JM |
1032 | return -1; |
1033 | } | |
1034 | ||
1035 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1036 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1037 | wpa_s->pairwise_cipher); | |
1038 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1039 | ||
1040 | #ifdef CONFIG_IEEE80211W | |
1041 | sel = ie.mgmt_group_cipher; | |
70f8cc8e | 1042 | if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION || |
0b60b0aa | 1043 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
1044 | sel = 0; |
1045 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1046 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
f049052b | 1047 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " |
6fc6879b JM |
1048 | "AES-128-CMAC"); |
1049 | } else { | |
1050 | wpa_s->mgmt_group_cipher = 0; | |
f049052b | 1051 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); |
6fc6879b JM |
1052 | } |
1053 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1054 | wpa_s->mgmt_group_cipher); | |
e820cf95 | 1055 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w); |
6fc6879b JM |
1056 | #endif /* CONFIG_IEEE80211W */ |
1057 | ||
1058 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
f049052b | 1059 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); |
6fc6879b JM |
1060 | return -1; |
1061 | } | |
1062 | ||
56586197 JM |
1063 | if (ssid->key_mgmt & |
1064 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256)) | |
7d232e23 | 1065 | { |
6fc6879b | 1066 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
7d232e23 ZC |
1067 | #ifndef CONFIG_NO_PBKDF2 |
1068 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && | |
1069 | ssid->passphrase) { | |
1070 | u8 psk[PMK_LEN]; | |
1071 | pbkdf2_sha1(ssid->passphrase, (char *) bss->ssid, | |
1072 | bss->ssid_len, 4096, psk, PMK_LEN); | |
1073 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", | |
1074 | psk, PMK_LEN); | |
1075 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1076 | } | |
1077 | #endif /* CONFIG_NO_PBKDF2 */ | |
1078 | } else | |
6fc6879b JM |
1079 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); |
1080 | ||
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | ||
1085 | /** | |
1086 | * wpa_supplicant_associate - Request association | |
1087 | * @wpa_s: Pointer to wpa_supplicant data | |
1088 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1089 | * @ssid: Configuration data for the selected network | |
1090 | * | |
1091 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1092 | */ | |
1093 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 1094 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
6fc6879b | 1095 | { |
5f3a6aa0 | 1096 | u8 wpa_ie[200]; |
6fc6879b | 1097 | size_t wpa_ie_len; |
8bac466b | 1098 | int use_crypt, ret, i, bssid_changed; |
abd9fafa | 1099 | int algs = WPA_AUTH_ALG_OPEN; |
71934751 | 1100 | enum wpa_cipher cipher_pairwise, cipher_group; |
6fc6879b JM |
1101 | struct wpa_driver_associate_params params; |
1102 | int wep_keys_set = 0; | |
1103 | struct wpa_driver_capa capa; | |
1104 | int assoc_failed = 0; | |
8bac466b | 1105 | struct wpa_ssid *old_ssid; |
6fc6879b | 1106 | |
78177a00 JM |
1107 | #ifdef CONFIG_IBSS_RSN |
1108 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1109 | wpa_s->ibss_rsn = NULL; | |
1110 | #endif /* CONFIG_IBSS_RSN */ | |
1111 | ||
2c5d725c JM |
1112 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || |
1113 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1581b38b JM |
1114 | #ifdef CONFIG_AP |
1115 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
f049052b BG |
1116 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " |
1117 | "mode"); | |
1581b38b JM |
1118 | return; |
1119 | } | |
1120 | wpa_supplicant_create_ap(wpa_s, ssid); | |
8f770587 | 1121 | wpa_s->current_bss = bss; |
1581b38b | 1122 | #else /* CONFIG_AP */ |
f049052b BG |
1123 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " |
1124 | "the build"); | |
1581b38b JM |
1125 | #endif /* CONFIG_AP */ |
1126 | return; | |
1127 | } | |
1128 | ||
52c9e6f3 | 1129 | #ifdef CONFIG_TDLS |
95cb2d88 JM |
1130 | if (bss) |
1131 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), | |
1132 | bss->ie_len); | |
52c9e6f3 JM |
1133 | #endif /* CONFIG_TDLS */ |
1134 | ||
5cc4d64b JM |
1135 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
1136 | ssid->mode == IEEE80211_MODE_INFRA) { | |
c2a04078 JM |
1137 | sme_authenticate(wpa_s, bss, ssid); |
1138 | return; | |
1139 | } | |
1140 | ||
0c80427d | 1141 | os_memset(¶ms, 0, sizeof(params)); |
6fc6879b | 1142 | wpa_s->reassociate = 0; |
22628eca | 1143 | if (bss && !wpas_driver_bss_selection(wpa_s)) { |
6fc6879b | 1144 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1145 | const u8 *ie, *md = NULL; |
6fc6879b | 1146 | #endif /* CONFIG_IEEE80211R */ |
6fc6879b JM |
1147 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
1148 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
6fa81a3b | 1149 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
8bac466b | 1150 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1151 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1152 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1153 | if (bssid_changed) |
1154 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b | 1155 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1156 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
6fc6879b JM |
1157 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
1158 | md = ie + 2; | |
e7846b68 | 1159 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
91a05482 JM |
1160 | if (md) { |
1161 | /* Prepare for the next transition */ | |
76b7981d | 1162 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
91a05482 | 1163 | } |
6fc6879b | 1164 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1165 | #ifdef CONFIG_WPS |
1166 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1167 | wpa_s->conf->ap_scan == 2 && | |
1168 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1169 | /* Use ap_scan==1 style network selection to find the network | |
1170 | */ | |
1171 | wpa_s->scan_req = 2; | |
1172 | wpa_s->reassociate = 1; | |
1173 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1174 | return; | |
1175 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1176 | } else { |
1177 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1178 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1179 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1180 | } | |
a4cba8f1 | 1181 | wpa_supplicant_cancel_sched_scan(wpa_s); |
6fc6879b JM |
1182 | wpa_supplicant_cancel_scan(wpa_s); |
1183 | ||
1184 | /* Starting new association, so clear the possibly used WPA IE from the | |
1185 | * previous association. */ | |
1186 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1187 | ||
1188 | #ifdef IEEE8021X_EAPOL | |
1189 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1190 | if (ssid->leap) { | |
1191 | if (ssid->non_leap == 0) | |
abd9fafa | 1192 | algs = WPA_AUTH_ALG_LEAP; |
6fc6879b | 1193 | else |
abd9fafa | 1194 | algs |= WPA_AUTH_ALG_LEAP; |
6fc6879b JM |
1195 | } |
1196 | } | |
1197 | #endif /* IEEE8021X_EAPOL */ | |
f049052b | 1198 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); |
6fc6879b | 1199 | if (ssid->auth_alg) { |
abd9fafa | 1200 | algs = ssid->auth_alg; |
f049052b BG |
1201 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " |
1202 | "0x%x", algs); | |
6fc6879b | 1203 | } |
6fc6879b | 1204 | |
6fa81a3b JM |
1205 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
1206 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
6fc6879b JM |
1207 | (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK | |
1208 | WPA_KEY_MGMT_FT_IEEE8021X | | |
56586197 JM |
1209 | WPA_KEY_MGMT_FT_PSK | |
1210 | WPA_KEY_MGMT_IEEE8021X_SHA256 | | |
1211 | WPA_KEY_MGMT_PSK_SHA256))) { | |
6fc6879b JM |
1212 | int try_opportunistic; |
1213 | try_opportunistic = ssid->proactive_key_caching && | |
1214 | (ssid->proto & WPA_PROTO_RSN); | |
1215 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1216 | wpa_s->current_ssid, | |
1217 | try_opportunistic) == 0) | |
1218 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1219 | wpa_ie_len = sizeof(wpa_ie); | |
1220 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1221 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1222 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1223 | "key management and encryption suites"); | |
6fc6879b JM |
1224 | return; |
1225 | } | |
1226 | } else if (ssid->key_mgmt & | |
1227 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | | |
1228 | WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK | | |
56586197 JM |
1229 | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 | |
1230 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { | |
6fc6879b JM |
1231 | wpa_ie_len = sizeof(wpa_ie); |
1232 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1233 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1234 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1235 | "key management and encryption suites (no " | |
1236 | "scan results)"); | |
6fc6879b JM |
1237 | return; |
1238 | } | |
ad08c363 JM |
1239 | #ifdef CONFIG_WPS |
1240 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1241 | struct wpabuf *wps_ie; |
1242 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1243 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1244 | wpa_ie_len = wpabuf_len(wps_ie); | |
1245 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1246 | } else |
1247 | wpa_ie_len = 0; | |
ad08c363 JM |
1248 | wpabuf_free(wps_ie); |
1249 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
0c80427d JM |
1250 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
1251 | params.wps = WPS_MODE_PRIVACY; | |
1252 | else | |
1253 | params.wps = WPS_MODE_OPEN; | |
cf546f1a | 1254 | wpa_s->wpa_proto = 0; |
ad08c363 | 1255 | #endif /* CONFIG_WPS */ |
6fc6879b JM |
1256 | } else { |
1257 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1258 | wpa_ie_len = 0; | |
cf546f1a | 1259 | wpa_s->wpa_proto = 0; |
6fc6879b JM |
1260 | } |
1261 | ||
5f3a6aa0 JM |
1262 | #ifdef CONFIG_P2P |
1263 | if (wpa_s->global->p2p) { | |
1264 | u8 *pos; | |
1265 | size_t len; | |
1266 | int res; | |
1267 | int p2p_group; | |
1268 | p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE; | |
1269 | pos = wpa_ie + wpa_ie_len; | |
1270 | len = sizeof(wpa_ie) - wpa_ie_len; | |
4c08c0bd | 1271 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group); |
5f3a6aa0 JM |
1272 | if (res >= 0) |
1273 | wpa_ie_len += res; | |
1274 | } | |
72044390 JM |
1275 | |
1276 | wpa_s->cross_connect_disallowed = 0; | |
1277 | if (bss) { | |
1278 | struct wpabuf *p2p; | |
1279 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1280 | if (p2p) { | |
1281 | wpa_s->cross_connect_disallowed = | |
1282 | p2p_get_cross_connect_disallowed(p2p); | |
1283 | wpabuf_free(p2p); | |
f049052b BG |
1284 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " |
1285 | "connection", | |
1286 | wpa_s->cross_connect_disallowed ? | |
1287 | "disallows" : "allows"); | |
72044390 JM |
1288 | } |
1289 | } | |
5f3a6aa0 JM |
1290 | #endif /* CONFIG_P2P */ |
1291 | ||
6fc6879b JM |
1292 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); |
1293 | use_crypt = 1; | |
1294 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1295 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1296 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1297 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1298 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1299 | use_crypt = 0; | |
1300 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1301 | use_crypt = 1; | |
1302 | wep_keys_set = 1; | |
1303 | } | |
1304 | } | |
ad08c363 JM |
1305 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1306 | use_crypt = 0; | |
6fc6879b JM |
1307 | |
1308 | #ifdef IEEE8021X_EAPOL | |
1309 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1310 | if ((ssid->eapol_flags & | |
1311 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1312 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1313 | !wep_keys_set) { | |
1314 | use_crypt = 0; | |
1315 | } else { | |
1316 | /* Assume that dynamic WEP-104 keys will be used and | |
1317 | * set cipher suites in order for drivers to expect | |
1318 | * encryption. */ | |
1319 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1320 | } | |
1321 | } | |
1322 | #endif /* IEEE8021X_EAPOL */ | |
1323 | ||
1324 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1325 | /* Set the key before (and later after) association */ | |
1326 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1327 | } | |
1328 | ||
6fc6879b | 1329 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
6fc6879b | 1330 | if (bss) { |
6fa81a3b JM |
1331 | params.ssid = bss->ssid; |
1332 | params.ssid_len = bss->ssid_len; | |
22628eca JM |
1333 | if (!wpas_driver_bss_selection(wpa_s)) { |
1334 | params.bssid = bss->bssid; | |
1335 | params.freq = bss->freq; | |
1336 | } | |
6fc6879b JM |
1337 | } else { |
1338 | params.ssid = ssid->ssid; | |
1339 | params.ssid_len = ssid->ssid_len; | |
1340 | } | |
d7dcba70 JM |
1341 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
1342 | params.freq == 0) | |
6fc6879b JM |
1343 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
1344 | params.wpa_ie = wpa_ie; | |
1345 | params.wpa_ie_len = wpa_ie_len; | |
1346 | params.pairwise_suite = cipher_pairwise; | |
1347 | params.group_suite = cipher_group; | |
1348 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
64fa840a | 1349 | params.wpa_proto = wpa_s->wpa_proto; |
6fc6879b JM |
1350 | params.auth_alg = algs; |
1351 | params.mode = ssid->mode; | |
1352 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1353 | if (ssid->wep_key_len[i]) | |
1354 | params.wep_key[i] = ssid->wep_key[i]; | |
1355 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1356 | } | |
1357 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1358 | ||
c2a04078 | 1359 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1360 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1361 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1362 | params.passphrase = ssid->passphrase; | |
1363 | if (ssid->psk_set) | |
1364 | params.psk = ssid->psk; | |
1365 | } | |
1366 | ||
36b15723 JM |
1367 | params.drop_unencrypted = use_crypt; |
1368 | ||
6fc6879b | 1369 | #ifdef CONFIG_IEEE80211W |
70f8cc8e JM |
1370 | params.mgmt_frame_protection = ssid->ieee80211w; |
1371 | if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) { | |
6fa81a3b | 1372 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
97d3497e JM |
1373 | struct wpa_ie_data ie; |
1374 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1375 | ie.capabilities & | |
1376 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
f049052b BG |
1377 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " |
1378 | "MFP: require MFP"); | |
97d3497e JM |
1379 | params.mgmt_frame_protection = |
1380 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1381 | } | |
1382 | } | |
6fc6879b JM |
1383 | #endif /* CONFIG_IEEE80211W */ |
1384 | ||
ffad8858 | 1385 | params.p2p = ssid->p2p_group; |
6e3f4b89 | 1386 | |
eea2fd9e JM |
1387 | if (wpa_s->parent->set_sta_uapsd) |
1388 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1389 | else | |
1390 | params.uapsd = -1; | |
1391 | ||
c2a04078 | 1392 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1393 | ret = ieee80211_sta_associate(wpa_s, ¶ms); |
1394 | else | |
1395 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1396 | if (ret < 0) { | |
1397 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1398 | "failed"); | |
871f4dd0 JM |
1399 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { |
1400 | /* | |
1401 | * The driver is known to mean what is saying, so we | |
1402 | * can stop right here; the association will not | |
1403 | * succeed. | |
1404 | */ | |
1405 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
1406 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1407 | return; | |
1408 | } | |
6fc6879b JM |
1409 | /* try to continue anyway; new association will be tried again |
1410 | * after timeout */ | |
1411 | assoc_failed = 1; | |
1412 | } | |
1413 | ||
1414 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1415 | /* Set the key after the association just in case association | |
1416 | * cleared the previously configured key. */ | |
1417 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1418 | /* No need to timeout authentication since there is no key | |
1419 | * management. */ | |
1420 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1421 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b | 1422 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 1423 | } else if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
1424 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
1425 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
1426 | /* | |
1427 | * RSN IBSS authentication is per-STA and we can disable the | |
1428 | * per-BSSID authentication. | |
1429 | */ | |
1430 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
53895c3b | 1431 | #endif /* CONFIG_IBSS_RSN */ |
6fc6879b JM |
1432 | } else { |
1433 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1434 | int timeout = 60; |
1435 | ||
1436 | if (assoc_failed) { | |
1437 | /* give IBSS a bit more time */ | |
d7dcba70 | 1438 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
1d3c75b3 DW |
1439 | } else if (wpa_s->conf->ap_scan == 1) { |
1440 | /* give IBSS a bit more time */ | |
d7dcba70 | 1441 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
1d3c75b3 | 1442 | } |
6fc6879b JM |
1443 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1444 | } | |
1445 | ||
1446 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1447 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1448 | /* Set static WEP keys again */ | |
1449 | wpa_set_wep_keys(wpa_s, ssid); | |
1450 | } | |
1451 | ||
1452 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1453 | /* | |
1454 | * Do not allow EAP session resumption between different | |
1455 | * network configurations. | |
1456 | */ | |
1457 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1458 | } | |
8bac466b | 1459 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 1460 | wpa_s->current_ssid = ssid; |
8f770587 | 1461 | wpa_s->current_bss = bss; |
6fc6879b JM |
1462 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
1463 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1464 | if (old_ssid != wpa_s->current_ssid) |
1465 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1466 | } |
1467 | ||
1468 | ||
09f58c09 JM |
1469 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
1470 | const u8 *addr) | |
1471 | { | |
1472 | struct wpa_ssid *old_ssid; | |
1473 | ||
1474 | wpa_clear_keys(wpa_s, addr); | |
1475 | wpa_supplicant_mark_disassoc(wpa_s); | |
1476 | old_ssid = wpa_s->current_ssid; | |
1477 | wpa_s->current_ssid = NULL; | |
1478 | wpa_s->current_bss = NULL; | |
1479 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1480 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1481 | if (old_ssid != wpa_s->current_ssid) | |
1482 | wpas_notify_network_changed(wpa_s); | |
1483 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1484 | } | |
1485 | ||
1486 | ||
6fc6879b JM |
1487 | /** |
1488 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1489 | * @wpa_s: Pointer to wpa_supplicant data | |
1490 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1491 | * | |
1492 | * This function is used to request %wpa_supplicant to disassociate with the | |
1493 | * current AP. | |
1494 | */ | |
1495 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1496 | int reason_code) | |
1497 | { | |
1498 | u8 *addr = NULL; | |
8bac466b | 1499 | |
a8e16edc | 1500 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1501 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1502 | ieee80211_sta_disassociate(wpa_s, reason_code); |
1503 | else | |
1504 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); | |
1505 | addr = wpa_s->bssid; | |
1506 | } | |
09f58c09 JM |
1507 | |
1508 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1509 | } |
1510 | ||
1511 | ||
1512 | /** | |
1513 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1514 | * @wpa_s: Pointer to wpa_supplicant data | |
1515 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1516 | * | |
073ab58f | 1517 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1518 | * current AP. |
1519 | */ | |
1520 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1521 | int reason_code) | |
1522 | { | |
1523 | u8 *addr = NULL; | |
8bac466b | 1524 | |
a8e16edc | 1525 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1526 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1527 | ieee80211_sta_deauthenticate(wpa_s, reason_code); |
1528 | else | |
1529 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, | |
1530 | reason_code); | |
1531 | addr = wpa_s->bssid; | |
1532 | } | |
09f58c09 JM |
1533 | |
1534 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1535 | } |
1536 | ||
1537 | ||
86b89452 WS |
1538 | /** |
1539 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1540 | * @wpa_s: wpa_supplicant structure for a network interface | |
1541 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1542 | * | |
1543 | * Enables the specified network or all networks if no network specified. | |
1544 | */ | |
1545 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1546 | struct wpa_ssid *ssid) | |
1547 | { | |
1548 | struct wpa_ssid *other_ssid; | |
1549 | int was_disabled; | |
1550 | ||
1551 | if (ssid == NULL) { | |
4dac0245 JM |
1552 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1553 | other_ssid = other_ssid->next) { | |
1554 | if (other_ssid->disabled == 2) | |
1555 | continue; /* do not change persistent P2P group | |
1556 | * data */ | |
86b89452 WS |
1557 | if (other_ssid == wpa_s->current_ssid && |
1558 | other_ssid->disabled) | |
1559 | wpa_s->reassociate = 1; | |
1560 | ||
1561 | was_disabled = other_ssid->disabled; | |
1562 | ||
1563 | other_ssid->disabled = 0; | |
1564 | ||
1565 | if (was_disabled != other_ssid->disabled) | |
1566 | wpas_notify_network_enabled_changed( | |
1567 | wpa_s, other_ssid); | |
86b89452 WS |
1568 | } |
1569 | if (wpa_s->reassociate) | |
1570 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
4dac0245 | 1571 | } else if (ssid->disabled && ssid->disabled != 2) { |
adc8d4a7 KM |
1572 | if (wpa_s->current_ssid == NULL) { |
1573 | /* | |
1574 | * Try to reassociate since there is no current | |
1575 | * configuration and a new network was made available. | |
1576 | */ | |
1577 | wpa_s->reassociate = 1; | |
1578 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1579 | } | |
86b89452 WS |
1580 | |
1581 | was_disabled = ssid->disabled; | |
1582 | ||
1583 | ssid->disabled = 0; | |
1584 | ||
1585 | if (was_disabled != ssid->disabled) | |
1586 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | ||
1591 | /** | |
1592 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1593 | * @wpa_s: wpa_supplicant structure for a network interface | |
1594 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1595 | * | |
1596 | * Disables the specified network or all networks if no network specified. | |
1597 | */ | |
1598 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1599 | struct wpa_ssid *ssid) | |
1600 | { | |
1601 | struct wpa_ssid *other_ssid; | |
1602 | int was_disabled; | |
1603 | ||
1604 | if (ssid == NULL) { | |
4dac0245 JM |
1605 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1606 | other_ssid = other_ssid->next) { | |
86b89452 | 1607 | was_disabled = other_ssid->disabled; |
4dac0245 JM |
1608 | if (was_disabled == 2) |
1609 | continue; /* do not change persistent P2P group | |
1610 | * data */ | |
86b89452 WS |
1611 | |
1612 | other_ssid->disabled = 1; | |
1613 | ||
1614 | if (was_disabled != other_ssid->disabled) | |
1615 | wpas_notify_network_enabled_changed( | |
1616 | wpa_s, other_ssid); | |
86b89452 WS |
1617 | } |
1618 | if (wpa_s->current_ssid) | |
1619 | wpa_supplicant_disassociate( | |
1620 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
4dac0245 | 1621 | } else if (ssid->disabled != 2) { |
86b89452 WS |
1622 | if (ssid == wpa_s->current_ssid) |
1623 | wpa_supplicant_disassociate( | |
1624 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1625 | ||
1626 | was_disabled = ssid->disabled; | |
1627 | ||
1628 | ssid->disabled = 1; | |
1629 | ||
1630 | if (was_disabled != ssid->disabled) | |
1631 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | ||
1636 | /** | |
1637 | * wpa_supplicant_select_network - Attempt association with a network | |
1638 | * @wpa_s: wpa_supplicant structure for a network interface | |
1639 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1640 | */ | |
1641 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1642 | struct wpa_ssid *ssid) | |
1643 | { | |
1644 | ||
1645 | struct wpa_ssid *other_ssid; | |
1646 | ||
1647 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) | |
1648 | wpa_supplicant_disassociate( | |
1649 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1650 | ||
1651 | /* | |
1652 | * Mark all other networks disabled or mark all networks enabled if no | |
1653 | * network specified. | |
1654 | */ | |
4dac0245 JM |
1655 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1656 | other_ssid = other_ssid->next) { | |
86b89452 | 1657 | int was_disabled = other_ssid->disabled; |
4dac0245 JM |
1658 | if (was_disabled == 2) |
1659 | continue; /* do not change persistent P2P group data */ | |
86b89452 WS |
1660 | |
1661 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1662 | ||
1663 | if (was_disabled != other_ssid->disabled) | |
1664 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
86b89452 | 1665 | } |
2a6f78fb JJ |
1666 | |
1667 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { | |
1668 | /* We are already associated with the selected network */ | |
1669 | wpa_printf(MSG_DEBUG, "Already associated with the " | |
1670 | "selected network - do nothing"); | |
1671 | return; | |
1672 | } | |
1673 | ||
7dcdcfd6 | 1674 | wpa_s->connect_without_scan = NULL; |
86b89452 WS |
1675 | wpa_s->disconnected = 0; |
1676 | wpa_s->reassociate = 1; | |
1677 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1678 | ||
a1641d26 JM |
1679 | if (ssid) |
1680 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1681 | } |
1682 | ||
1683 | ||
1684 | /** | |
1685 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1686 | * @wpa_s: wpa_supplicant structure for a network interface | |
1687 | * @ap_scan: AP scan mode | |
1688 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1689 | * | |
1690 | */ | |
1691 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1692 | { | |
1693 | ||
1694 | int old_ap_scan; | |
1695 | ||
1696 | if (ap_scan < 0 || ap_scan > 2) | |
1697 | return -1; | |
1698 | ||
1699 | old_ap_scan = wpa_s->conf->ap_scan; | |
1700 | wpa_s->conf->ap_scan = ap_scan; | |
1701 | ||
1702 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1703 | wpas_notify_ap_scan_changed(wpa_s); | |
1704 | ||
1705 | return 0; | |
1706 | } | |
1707 | ||
1708 | ||
78633c37 SL |
1709 | /** |
1710 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
1711 | * @wpa_s: wpa_supplicant structure for a network interface | |
1712 | * @expire_age: Expiration age in seconds | |
1713 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
1714 | * | |
1715 | */ | |
1716 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
1717 | unsigned int bss_expire_age) | |
1718 | { | |
1719 | if (bss_expire_age < 10) { | |
1720 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
1721 | bss_expire_age); | |
1722 | return -1; | |
1723 | } | |
1724 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
1725 | bss_expire_age); | |
1726 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
1731 | ||
1732 | /** | |
1733 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
1734 | * @wpa_s: wpa_supplicant structure for a network interface | |
1735 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
1736 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
1737 | * | |
1738 | */ | |
1739 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
1740 | unsigned int bss_expire_count) | |
1741 | { | |
1742 | if (bss_expire_count < 1) { | |
1743 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
1744 | bss_expire_count); | |
1745 | return -1; | |
1746 | } | |
1747 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
1748 | bss_expire_count); | |
1749 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
1750 | ||
1751 | return 0; | |
1752 | } | |
1753 | ||
1754 | ||
86b89452 WS |
1755 | /** |
1756 | * wpa_supplicant_set_debug_params - Set global debug params | |
1757 | * @global: wpa_global structure | |
1758 | * @debug_level: debug level | |
1759 | * @debug_timestamp: determines if show timestamp in debug data | |
1760 | * @debug_show_keys: determines if show keys in debug data | |
1761 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1762 | */ | |
1763 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1764 | int debug_timestamp, int debug_show_keys) | |
1765 | { | |
1766 | ||
1767 | int old_level, old_timestamp, old_show_keys; | |
1768 | ||
1769 | /* check for allowed debuglevels */ | |
14dc0011 PS |
1770 | if (debug_level != MSG_EXCESSIVE && |
1771 | debug_level != MSG_MSGDUMP && | |
86b89452 WS |
1772 | debug_level != MSG_DEBUG && |
1773 | debug_level != MSG_INFO && | |
1774 | debug_level != MSG_WARNING && | |
1775 | debug_level != MSG_ERROR) | |
1776 | return -1; | |
1777 | ||
1778 | old_level = wpa_debug_level; | |
1779 | old_timestamp = wpa_debug_timestamp; | |
1780 | old_show_keys = wpa_debug_show_keys; | |
1781 | ||
1782 | wpa_debug_level = debug_level; | |
1783 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1784 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1785 | ||
db9133ac WS |
1786 | if (wpa_debug_level != old_level) |
1787 | wpas_notify_debug_level_changed(global); | |
1788 | if (wpa_debug_timestamp != old_timestamp) | |
1789 | wpas_notify_debug_timestamp_changed(global); | |
1790 | if (wpa_debug_show_keys != old_show_keys) | |
1791 | wpas_notify_debug_show_keys_changed(global); | |
86b89452 WS |
1792 | |
1793 | return 0; | |
1794 | } | |
1795 | ||
1796 | ||
6fc6879b JM |
1797 | /** |
1798 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1799 | * @wpa_s: Pointer to wpa_supplicant data | |
1800 | * Returns: A pointer to the current network structure or %NULL on failure | |
1801 | */ | |
1802 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1803 | { | |
1804 | struct wpa_ssid *entry; | |
1805 | u8 ssid[MAX_SSID_LEN]; | |
1806 | int res; | |
1807 | size_t ssid_len; | |
1808 | u8 bssid[ETH_ALEN]; | |
1809 | int wired; | |
1810 | ||
c2a04078 | 1811 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b | 1812 | if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) { |
f049052b BG |
1813 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " |
1814 | "MLME"); | |
6fc6879b JM |
1815 | return NULL; |
1816 | } | |
1817 | } else { | |
1818 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
1819 | if (res < 0) { | |
f049052b BG |
1820 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " |
1821 | "driver"); | |
6fc6879b JM |
1822 | return NULL; |
1823 | } | |
1824 | ssid_len = res; | |
1825 | } | |
1826 | ||
c2a04078 | 1827 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1828 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
1829 | else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
f049052b BG |
1830 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " |
1831 | "driver"); | |
6fc6879b JM |
1832 | return NULL; |
1833 | } | |
1834 | ||
c2a04078 JM |
1835 | wired = wpa_s->conf->ap_scan == 0 && |
1836 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1837 | |
1838 | entry = wpa_s->conf->ssid; | |
1839 | while (entry) { | |
1840 | if (!entry->disabled && | |
1841 | ((ssid_len == entry->ssid_len && | |
1842 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1843 | (!entry->bssid_set || | |
1844 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1845 | return entry; | |
24c23d1b JM |
1846 | #ifdef CONFIG_WPS |
1847 | if (!entry->disabled && | |
1848 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1849 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1850 | (!entry->bssid_set || | |
1851 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1852 | return entry; | |
1853 | #endif /* CONFIG_WPS */ | |
7d232e23 ZC |
1854 | |
1855 | if (!entry->disabled && entry->bssid_set && | |
1856 | entry->ssid_len == 0 && | |
1857 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) | |
1858 | return entry; | |
1859 | ||
6fc6879b JM |
1860 | entry = entry->next; |
1861 | } | |
1862 | ||
1863 | return NULL; | |
1864 | } | |
1865 | ||
1866 | ||
1867 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
1868 | const char *name) | |
1869 | { | |
1870 | int i; | |
362f781e | 1871 | size_t len; |
74b1c84a | 1872 | const char *pos, *driver = name; |
6fc6879b JM |
1873 | |
1874 | if (wpa_s == NULL) | |
1875 | return -1; | |
1876 | ||
c5121837 | 1877 | if (wpa_drivers[0] == NULL) { |
f049052b BG |
1878 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " |
1879 | "wpa_supplicant"); | |
6fc6879b JM |
1880 | return -1; |
1881 | } | |
1882 | ||
1883 | if (name == NULL) { | |
1884 | /* default to first driver in the list */ | |
c5121837 | 1885 | wpa_s->driver = wpa_drivers[0]; |
8a5ab9f5 | 1886 | wpa_s->global_drv_priv = wpa_s->global->drv_priv[0]; |
6fc6879b JM |
1887 | return 0; |
1888 | } | |
1889 | ||
74b1c84a SO |
1890 | do { |
1891 | pos = os_strchr(driver, ','); | |
1892 | if (pos) | |
1893 | len = pos - driver; | |
1894 | else | |
1895 | len = os_strlen(driver); | |
1896 | ||
1897 | for (i = 0; wpa_drivers[i]; i++) { | |
1898 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1899 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
1900 | 0) { | |
1901 | wpa_s->driver = wpa_drivers[i]; | |
1902 | wpa_s->global_drv_priv = | |
1903 | wpa_s->global->drv_priv[i]; | |
1904 | return 0; | |
1905 | } | |
6fc6879b | 1906 | } |
74b1c84a SO |
1907 | |
1908 | driver = pos + 1; | |
1909 | } while (pos); | |
6fc6879b | 1910 | |
f049052b | 1911 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); |
6fc6879b JM |
1912 | return -1; |
1913 | } | |
1914 | ||
1915 | ||
a8e0505b JM |
1916 | /** |
1917 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
1918 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
1919 | * with struct wpa_driver_ops::init() | |
1920 | * @src_addr: Source address of the EAPOL frame | |
1921 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
1922 | * @len: Length of the EAPOL data | |
1923 | * | |
1924 | * This function is called for each received EAPOL frame. Most driver | |
1925 | * interfaces rely on more generic OS mechanism for receiving frames through | |
1926 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
1927 | * take care of received EAPOL frames and deliver them to the core supplicant | |
1928 | * code by calling this function. | |
1929 | */ | |
6fc6879b JM |
1930 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
1931 | const u8 *buf, size_t len) | |
1932 | { | |
1933 | struct wpa_supplicant *wpa_s = ctx; | |
1934 | ||
f049052b | 1935 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); |
6fc6879b JM |
1936 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); |
1937 | ||
1ff73338 JM |
1938 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1939 | /* | |
1940 | * There is possible race condition between receiving the | |
1941 | * association event and the EAPOL frame since they are coming | |
1942 | * through different paths from the driver. In order to avoid | |
1943 | * issues in trying to process the EAPOL frame before receiving | |
1944 | * association information, lets queue it for processing until | |
1945 | * the association event is received. | |
1946 | */ | |
f049052b BG |
1947 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " |
1948 | "of received EAPOL frame"); | |
1ff73338 JM |
1949 | wpabuf_free(wpa_s->pending_eapol_rx); |
1950 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1951 | if (wpa_s->pending_eapol_rx) { | |
1952 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1953 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1954 | ETH_ALEN); | |
1955 | } | |
1956 | return; | |
1957 | } | |
1958 | ||
db149ac9 JM |
1959 | #ifdef CONFIG_AP |
1960 | if (wpa_s->ap_iface) { | |
1961 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
1962 | return; | |
1963 | } | |
1964 | #endif /* CONFIG_AP */ | |
1965 | ||
6fc6879b | 1966 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
f049052b BG |
1967 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " |
1968 | "no key management is configured"); | |
6fc6879b JM |
1969 | return; |
1970 | } | |
1971 | ||
1972 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 1973 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 1974 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
9c972abb JM |
1975 | wpa_s->wpa_state != WPA_COMPLETED) && |
1976 | (wpa_s->current_ssid == NULL || | |
1977 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
1978 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
1979 | wpa_supplicant_req_auth_timeout( | |
1980 | wpa_s, | |
56586197 | 1981 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
1982 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
1983 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
1984 | 70 : 10, 0); |
1985 | } | |
1986 | wpa_s->eapol_received++; | |
1987 | ||
1988 | if (wpa_s->countermeasures) { | |
f049052b BG |
1989 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " |
1990 | "EAPOL packet"); | |
6fc6879b JM |
1991 | return; |
1992 | } | |
1993 | ||
8be18440 JM |
1994 | #ifdef CONFIG_IBSS_RSN |
1995 | if (wpa_s->current_ssid && | |
d7dcba70 | 1996 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
8be18440 JM |
1997 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
1998 | return; | |
1999 | } | |
2000 | #endif /* CONFIG_IBSS_RSN */ | |
2001 | ||
6fc6879b JM |
2002 | /* Source address of the incoming EAPOL frame could be compared to the |
2003 | * current BSSID. However, it is possible that a centralized | |
2004 | * Authenticator could be using another MAC address than the BSSID of | |
2005 | * an AP, so just allow any address to be used for now. The replies are | |
2006 | * still sent to the current BSSID (if available), though. */ | |
2007 | ||
2008 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 2009 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
2010 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
2011 | return; | |
2012 | wpa_drv_poll(wpa_s); | |
c2a04078 | 2013 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 2014 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 2015 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
2016 | /* |
2017 | * Set portValid = TRUE here since we are going to skip 4-way | |
2018 | * handshake processing which would normally set portValid. We | |
2019 | * need this to allow the EAPOL state machines to be completed | |
2020 | * without going through EAPOL-Key handshake. | |
2021 | */ | |
2022 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | ||
6fc6879b JM |
2027 | /** |
2028 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
2029 | * @wpa_s: Pointer to wpa_supplicant data | |
2030 | * Returns: 0 on success, -1 on failure | |
2031 | * | |
2032 | * This function is called to initialize driver interface parameters. | |
2033 | * wpa_drv_init() must have been called before this function to initialize the | |
2034 | * driver interface. | |
2035 | */ | |
2036 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
2037 | { | |
2038 | static int interface_count = 0; | |
2039 | ||
2040 | if (wpa_s->driver->send_eapol) { | |
2041 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2042 | if (addr) | |
2043 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
fdadd5fe JM |
2044 | } else if (!(wpa_s->drv_flags & |
2045 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
6fc6879b JM |
2046 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, |
2047 | wpa_drv_get_mac_addr(wpa_s), | |
2048 | ETH_P_EAPOL, | |
2049 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2050 | if (wpa_s->l2 == NULL) | |
2051 | return -1; | |
fdadd5fe JM |
2052 | } else { |
2053 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2054 | if (addr) | |
2055 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
6fc6879b JM |
2056 | } |
2057 | ||
2058 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
f049052b | 2059 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); |
6fc6879b JM |
2060 | return -1; |
2061 | } | |
2062 | ||
f049052b BG |
2063 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, |
2064 | MAC2STR(wpa_s->own_addr)); | |
6fc6879b JM |
2065 | |
2066 | if (wpa_s->bridge_ifname[0]) { | |
f049052b BG |
2067 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " |
2068 | "interface '%s'", wpa_s->bridge_ifname); | |
6fc6879b JM |
2069 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, |
2070 | wpa_s->own_addr, | |
2071 | ETH_P_EAPOL, | |
2072 | wpa_supplicant_rx_eapol, wpa_s, | |
2073 | 0); | |
2074 | if (wpa_s->l2_br == NULL) { | |
f049052b BG |
2075 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " |
2076 | "connection for the bridge interface '%s'", | |
2077 | wpa_s->bridge_ifname); | |
6fc6879b JM |
2078 | return -1; |
2079 | } | |
2080 | } | |
2081 | ||
6fc6879b JM |
2082 | wpa_clear_keys(wpa_s, NULL); |
2083 | ||
2084 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2085 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2086 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2087 | ||
f049052b | 2088 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
6fc6879b JM |
2089 | wpa_drv_flush_pmkid(wpa_s); |
2090 | ||
ba2a573c | 2091 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
74e259ec | 2092 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
6a90053c LC |
2093 | if (wpa_supplicant_delayed_sched_scan(wpa_s, interface_count, |
2094 | 100000)) | |
a4cba8f1 LC |
2095 | wpa_supplicant_req_scan(wpa_s, interface_count, |
2096 | 100000); | |
74e259ec JM |
2097 | interface_count++; |
2098 | } else | |
2099 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
6fc6879b JM |
2100 | |
2101 | return 0; | |
2102 | } | |
2103 | ||
2104 | ||
2105 | static int wpa_supplicant_daemon(const char *pid_file) | |
2106 | { | |
2107 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2108 | return os_daemonize(pid_file); | |
2109 | } | |
2110 | ||
2111 | ||
2112 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2113 | { | |
2114 | struct wpa_supplicant *wpa_s; | |
2115 | ||
2116 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2117 | if (wpa_s == NULL) | |
2118 | return NULL; | |
2119 | wpa_s->scan_req = 1; | |
67b9bd08 | 2120 | wpa_s->scan_interval = 5; |
c302f207 | 2121 | wpa_s->new_connection = 1; |
b22128ef | 2122 | wpa_s->parent = wpa_s; |
cbdf3507 | 2123 | wpa_s->sched_scanning = 0; |
6fc6879b JM |
2124 | |
2125 | return wpa_s; | |
2126 | } | |
2127 | ||
2128 | ||
2129 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
2130 | struct wpa_interface *iface) | |
2131 | { | |
362f781e JM |
2132 | const char *ifname, *driver; |
2133 | struct wpa_driver_capa capa; | |
2134 | ||
6fc6879b JM |
2135 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
2136 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
2137 | iface->confname ? iface->confname : "N/A", | |
2138 | iface->driver ? iface->driver : "default", | |
2139 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
2140 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
2141 | ||
6fc6879b JM |
2142 | if (iface->confname) { |
2143 | #ifdef CONFIG_BACKEND_FILE | |
2144 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
2145 | if (wpa_s->confname == NULL) { | |
2146 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
2147 | "for configuration file '%s'.", | |
2148 | iface->confname); | |
2149 | return -1; | |
2150 | } | |
2151 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
2152 | iface->confname, wpa_s->confname); | |
2153 | #else /* CONFIG_BACKEND_FILE */ | |
2154 | wpa_s->confname = os_strdup(iface->confname); | |
2155 | #endif /* CONFIG_BACKEND_FILE */ | |
2156 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
2157 | if (wpa_s->conf == NULL) { | |
2158 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
2159 | "configuration '%s'.", wpa_s->confname); | |
2160 | return -1; | |
2161 | } | |
2162 | ||
2163 | /* | |
2164 | * Override ctrl_interface and driver_param if set on command | |
2165 | * line. | |
2166 | */ | |
2167 | if (iface->ctrl_interface) { | |
2168 | os_free(wpa_s->conf->ctrl_interface); | |
2169 | wpa_s->conf->ctrl_interface = | |
2170 | os_strdup(iface->ctrl_interface); | |
2171 | } | |
2172 | ||
2173 | if (iface->driver_param) { | |
2174 | os_free(wpa_s->conf->driver_param); | |
2175 | wpa_s->conf->driver_param = | |
2176 | os_strdup(iface->driver_param); | |
2177 | } | |
2178 | } else | |
2179 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
2180 | iface->driver_param); | |
2181 | ||
2182 | if (wpa_s->conf == NULL) { | |
2183 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
2184 | return -1; | |
2185 | } | |
2186 | ||
2187 | if (iface->ifname == NULL) { | |
2188 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
2189 | return -1; | |
2190 | } | |
2191 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
2192 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
2193 | iface->ifname); | |
2194 | return -1; | |
2195 | } | |
2196 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
2197 | ||
2198 | if (iface->bridge_ifname) { | |
2199 | if (os_strlen(iface->bridge_ifname) >= | |
2200 | sizeof(wpa_s->bridge_ifname)) { | |
2201 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
2202 | "name '%s'.", iface->bridge_ifname); | |
2203 | return -1; | |
2204 | } | |
2205 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
2206 | sizeof(wpa_s->bridge_ifname)); | |
2207 | } | |
2208 | ||
6fc6879b JM |
2209 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2210 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2211 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2212 | ||
2213 | /* Initialize driver interface and register driver event handler before | |
2214 | * L2 receive handler so that association events are processed before | |
2215 | * EAPOL-Key packets if both become available for the same select() | |
2216 | * call. */ | |
362f781e JM |
2217 | driver = iface->driver; |
2218 | next_driver: | |
2219 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2220 | return -1; | |
2221 | ||
6fc6879b JM |
2222 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2223 | if (wpa_s->drv_priv == NULL) { | |
362f781e | 2224 | const char *pos; |
a5b9337f | 2225 | pos = driver ? os_strchr(driver, ',') : NULL; |
362f781e | 2226 | if (pos) { |
f049052b BG |
2227 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
2228 | "driver interface - try next driver wrapper"); | |
362f781e JM |
2229 | driver = pos + 1; |
2230 | goto next_driver; | |
2231 | } | |
f049052b BG |
2232 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " |
2233 | "interface"); | |
6fc6879b JM |
2234 | return -1; |
2235 | } | |
2236 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
f049052b BG |
2237 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " |
2238 | "driver_param '%s'", wpa_s->conf->driver_param); | |
6fc6879b JM |
2239 | return -1; |
2240 | } | |
2241 | ||
2242 | ifname = wpa_drv_get_ifname(wpa_s); | |
2243 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
f049052b BG |
2244 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " |
2245 | "interface name with '%s'", ifname); | |
6fc6879b JM |
2246 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); |
2247 | } | |
2248 | ||
2249 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2250 | return -1; | |
2251 | ||
2252 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2253 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2254 | NULL); | |
2255 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2256 | ||
2257 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2258 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2259 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
f049052b BG |
2260 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2261 | "dot11RSNAConfigPMKLifetime"); | |
6fc6879b JM |
2262 | return -1; |
2263 | } | |
2264 | ||
2265 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2266 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2267 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
f049052b | 2268 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
6fc6879b JM |
2269 | "dot11RSNAConfigPMKReauthThreshold"); |
2270 | return -1; | |
2271 | } | |
2272 | ||
2273 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2274 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2275 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
f049052b BG |
2276 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2277 | "dot11RSNAConfigSATimeout"); | |
6fc6879b JM |
2278 | return -1; |
2279 | } | |
2280 | ||
814782b9 JM |
2281 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
2282 | wpa_s->drv_flags = capa.flags; | |
2283 | if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { | |
2284 | if (ieee80211_sta_init(wpa_s)) | |
2285 | return -1; | |
2286 | } | |
2287 | wpa_s->max_scan_ssids = capa.max_scan_ssids; | |
cbdf3507 LC |
2288 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; |
2289 | wpa_s->sched_scan_supported = capa.sched_scan_supported; | |
b59e6f26 | 2290 | wpa_s->max_match_sets = capa.max_match_sets; |
814782b9 | 2291 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; |
c4ea4c5c | 2292 | wpa_s->max_stations = capa.max_stations; |
814782b9 JM |
2293 | } |
2294 | if (wpa_s->max_remain_on_chan == 0) | |
2295 | wpa_s->max_remain_on_chan = 1000; | |
2296 | ||
6fc6879b JM |
2297 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
2298 | return -1; | |
2299 | ||
281ff0aa GP |
2300 | #ifdef CONFIG_TDLS |
2301 | if (wpa_tdls_init(wpa_s->wpa)) | |
2302 | return -1; | |
2303 | #endif /* CONFIG_TDLS */ | |
2304 | ||
315ce40a JM |
2305 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2306 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
f049052b | 2307 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); |
6d158490 LR |
2308 | return -1; |
2309 | } | |
2310 | ||
6fc6879b JM |
2311 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
2312 | ||
116654ce JM |
2313 | if (wpas_wps_init(wpa_s)) |
2314 | return -1; | |
2315 | ||
6fc6879b JM |
2316 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2317 | return -1; | |
2318 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2319 | ||
2320 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2321 | if (wpa_s->ctrl_iface == NULL) { | |
2322 | wpa_printf(MSG_ERROR, | |
2323 | "Failed to initialize control interface '%s'.\n" | |
2324 | "You may have another wpa_supplicant process " | |
2325 | "already running or the file was\n" | |
2326 | "left by an unclean termination of wpa_supplicant " | |
2327 | "in which case you will need\n" | |
2328 | "to manually remove this file before starting " | |
2329 | "wpa_supplicant again.\n", | |
2330 | wpa_s->conf->ctrl_interface); | |
2331 | return -1; | |
2332 | } | |
2333 | ||
04ea7b79 JM |
2334 | wpa_s->gas = gas_query_init(wpa_s); |
2335 | if (wpa_s->gas == NULL) { | |
2336 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); | |
2337 | return -1; | |
2338 | } | |
2339 | ||
b22128ef JM |
2340 | #ifdef CONFIG_P2P |
2341 | if (wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
f049052b | 2342 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); |
b22128ef JM |
2343 | return -1; |
2344 | } | |
2345 | #endif /* CONFIG_P2P */ | |
2346 | ||
83922c2d JM |
2347 | if (wpa_bss_init(wpa_s) < 0) |
2348 | return -1; | |
83922c2d | 2349 | |
6fc6879b JM |
2350 | return 0; |
2351 | } | |
2352 | ||
2353 | ||
2ee055b3 JM |
2354 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
2355 | int notify) | |
6fc6879b JM |
2356 | { |
2357 | if (wpa_s->drv_priv) { | |
2358 | wpa_supplicant_deauthenticate(wpa_s, | |
2359 | WLAN_REASON_DEAUTH_LEAVING); | |
2360 | ||
6fc6879b JM |
2361 | wpa_drv_set_countermeasures(wpa_s, 0); |
2362 | wpa_clear_keys(wpa_s, NULL); | |
2363 | } | |
2364 | ||
8e56d189 JM |
2365 | wpa_supplicant_cleanup(wpa_s); |
2366 | ||
2ee055b3 JM |
2367 | if (notify) |
2368 | wpas_notify_iface_removed(wpa_s); | |
6fc6879b | 2369 | |
6fc6879b JM |
2370 | if (wpa_s->drv_priv) |
2371 | wpa_drv_deinit(wpa_s); | |
2372 | } | |
2373 | ||
2374 | ||
2375 | /** | |
2376 | * wpa_supplicant_add_iface - Add a new network interface | |
2377 | * @global: Pointer to global data from wpa_supplicant_init() | |
2378 | * @iface: Interface configuration options | |
2379 | * Returns: Pointer to the created interface or %NULL on failure | |
2380 | * | |
2381 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2382 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2383 | * main event loop has been started. In addition, new interfaces can be added | |
2384 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2385 | * e.g., when a hotplug network adapter is inserted. | |
2386 | */ | |
2387 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2388 | struct wpa_interface *iface) | |
2389 | { | |
2390 | struct wpa_supplicant *wpa_s; | |
d27df100 | 2391 | struct wpa_interface t_iface; |
8e56d189 | 2392 | struct wpa_ssid *ssid; |
6fc6879b JM |
2393 | |
2394 | if (global == NULL || iface == NULL) | |
2395 | return NULL; | |
2396 | ||
2397 | wpa_s = wpa_supplicant_alloc(); | |
2398 | if (wpa_s == NULL) | |
2399 | return NULL; | |
2400 | ||
d8222ae3 JM |
2401 | wpa_s->global = global; |
2402 | ||
d27df100 JM |
2403 | t_iface = *iface; |
2404 | if (global->params.override_driver) { | |
2405 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
2406 | "('%s' -> '%s')", | |
2407 | iface->driver, global->params.override_driver); | |
2408 | t_iface.driver = global->params.override_driver; | |
2409 | } | |
2410 | if (global->params.override_ctrl_interface) { | |
2411 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
2412 | "ctrl_interface ('%s' -> '%s')", | |
2413 | iface->ctrl_interface, | |
2414 | global->params.override_ctrl_interface); | |
2415 | t_iface.ctrl_interface = | |
2416 | global->params.override_ctrl_interface; | |
2417 | } | |
2418 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
2419 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2420 | iface->ifname); | |
2ee055b3 | 2421 | wpa_supplicant_deinit_iface(wpa_s, 0); |
6fc6879b JM |
2422 | os_free(wpa_s); |
2423 | return NULL; | |
2424 | } | |
2425 | ||
dc461de4 WS |
2426 | /* Notify the control interfaces about new iface */ |
2427 | if (wpas_notify_iface_added(wpa_s)) { | |
2ee055b3 | 2428 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2429 | os_free(wpa_s); |
2430 | return NULL; | |
2431 | } | |
1bd3f426 | 2432 | |
8e56d189 JM |
2433 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
2434 | wpas_notify_network_added(wpa_s, ssid); | |
2435 | ||
6fc6879b JM |
2436 | wpa_s->next = global->ifaces; |
2437 | global->ifaces = wpa_s; | |
2438 | ||
f049052b | 2439 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); |
6fc6879b JM |
2440 | |
2441 | return wpa_s; | |
2442 | } | |
2443 | ||
2444 | ||
2445 | /** | |
2446 | * wpa_supplicant_remove_iface - Remove a network interface | |
2447 | * @global: Pointer to global data from wpa_supplicant_init() | |
2448 | * @wpa_s: Pointer to the network interface to be removed | |
2449 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2450 | * | |
2451 | * This function can be used to dynamically remove network interfaces from | |
2452 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2453 | * addition, this function is used to remove all remaining interfaces when | |
2454 | * %wpa_supplicant is terminated. | |
2455 | */ | |
2456 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
2457 | struct wpa_supplicant *wpa_s) | |
2458 | { | |
2459 | struct wpa_supplicant *prev; | |
2460 | ||
2461 | /* Remove interface from the global list of interfaces */ | |
2462 | prev = global->ifaces; | |
2463 | if (prev == wpa_s) { | |
2464 | global->ifaces = wpa_s->next; | |
2465 | } else { | |
2466 | while (prev && prev->next != wpa_s) | |
2467 | prev = prev->next; | |
2468 | if (prev == NULL) | |
2469 | return -1; | |
2470 | prev->next = wpa_s->next; | |
2471 | } | |
2472 | ||
f049052b | 2473 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); |
6fc6879b | 2474 | |
b22128ef JM |
2475 | if (global->p2p_group_formation == wpa_s) |
2476 | global->p2p_group_formation = NULL; | |
2ee055b3 | 2477 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2478 | os_free(wpa_s); |
2479 | ||
2480 | return 0; | |
2481 | } | |
2482 | ||
2483 | ||
cf83fb0b PS |
2484 | /** |
2485 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
2486 | * @wpa_s: Pointer to the network interface | |
2487 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
2488 | */ | |
2489 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
2490 | { | |
2491 | const char *eapol_method; | |
2492 | ||
2493 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
2494 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
2495 | return "NO-EAP"; | |
2496 | } | |
2497 | ||
2498 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
2499 | if (eapol_method == NULL) | |
2500 | return "UNKNOWN-EAP"; | |
2501 | ||
2502 | return eapol_method; | |
2503 | } | |
2504 | ||
2505 | ||
6fc6879b JM |
2506 | /** |
2507 | * wpa_supplicant_get_iface - Get a new network interface | |
2508 | * @global: Pointer to global data from wpa_supplicant_init() | |
2509 | * @ifname: Interface name | |
2510 | * Returns: Pointer to the interface or %NULL if not found | |
2511 | */ | |
2512 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2513 | const char *ifname) | |
2514 | { | |
2515 | struct wpa_supplicant *wpa_s; | |
2516 | ||
2517 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2518 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2519 | return wpa_s; | |
2520 | } | |
2521 | return NULL; | |
2522 | } | |
2523 | ||
2524 | ||
50b16da1 | 2525 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae BG |
2526 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) |
2527 | { | |
2528 | struct wpa_supplicant *wpa_s = ctx; | |
2529 | if (wpa_s == NULL) | |
2530 | return NULL; | |
2531 | return wpa_s->ifname; | |
2532 | } | |
50b16da1 | 2533 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae BG |
2534 | |
2535 | ||
6fc6879b JM |
2536 | /** |
2537 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2538 | * @params: Parameters for %wpa_supplicant | |
2539 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2540 | * | |
2541 | * This function is used to initialize %wpa_supplicant. After successful | |
2542 | * initialization, the returned data pointer can be used to add and remove | |
2543 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2544 | */ | |
2545 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2546 | { | |
2547 | struct wpa_global *global; | |
ac305589 | 2548 | int ret, i; |
6fc6879b JM |
2549 | |
2550 | if (params == NULL) | |
2551 | return NULL; | |
2552 | ||
50b16da1 | 2553 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae | 2554 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); |
50b16da1 | 2555 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae | 2556 | |
6fc6879b | 2557 | wpa_debug_open_file(params->wpa_debug_file_path); |
daa70d49 SL |
2558 | if (params->wpa_debug_syslog) |
2559 | wpa_debug_open_syslog(); | |
6fc6879b | 2560 | |
12760815 | 2561 | ret = eap_register_methods(); |
6fc6879b JM |
2562 | if (ret) { |
2563 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2564 | if (ret == -2) | |
2565 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2566 | "the same EAP type."); | |
2567 | return NULL; | |
2568 | } | |
2569 | ||
2570 | global = os_zalloc(sizeof(*global)); | |
2571 | if (global == NULL) | |
2572 | return NULL; | |
b22128ef JM |
2573 | dl_list_init(&global->p2p_srv_bonjour); |
2574 | dl_list_init(&global->p2p_srv_upnp); | |
6fc6879b JM |
2575 | global->params.daemonize = params->daemonize; |
2576 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2577 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2578 | if (params->pid_file) | |
2579 | global->params.pid_file = os_strdup(params->pid_file); | |
2580 | if (params->ctrl_interface) | |
2581 | global->params.ctrl_interface = | |
2582 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
2583 | if (params->override_driver) |
2584 | global->params.override_driver = | |
2585 | os_strdup(params->override_driver); | |
2586 | if (params->override_ctrl_interface) | |
2587 | global->params.override_ctrl_interface = | |
2588 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
2589 | wpa_debug_level = global->params.wpa_debug_level = |
2590 | params->wpa_debug_level; | |
2591 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2592 | params->wpa_debug_show_keys; | |
2593 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2594 | params->wpa_debug_timestamp; | |
2595 | ||
f19858f5 JM |
2596 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); |
2597 | ||
0456ea16 | 2598 | if (eloop_init()) { |
6fc6879b JM |
2599 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
2600 | wpa_supplicant_deinit(global); | |
2601 | return NULL; | |
2602 | } | |
2603 | ||
38e24575 | 2604 | random_init(params->entropy_file); |
d47fa330 | 2605 | |
6fc6879b JM |
2606 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); |
2607 | if (global->ctrl_iface == NULL) { | |
2608 | wpa_supplicant_deinit(global); | |
2609 | return NULL; | |
2610 | } | |
2611 | ||
dc461de4 WS |
2612 | if (wpas_notify_supplicant_initialized(global)) { |
2613 | wpa_supplicant_deinit(global); | |
2614 | return NULL; | |
6fc6879b JM |
2615 | } |
2616 | ||
c5121837 | 2617 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2618 | global->drv_count++; |
2619 | if (global->drv_count == 0) { | |
2620 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2621 | wpa_supplicant_deinit(global); | |
2622 | return NULL; | |
2623 | } | |
2624 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2625 | if (global->drv_priv == NULL) { | |
2626 | wpa_supplicant_deinit(global); | |
2627 | return NULL; | |
2628 | } | |
c5121837 JM |
2629 | for (i = 0; wpa_drivers[i]; i++) { |
2630 | if (!wpa_drivers[i]->global_init) | |
ac305589 | 2631 | continue; |
c5121837 | 2632 | global->drv_priv[i] = wpa_drivers[i]->global_init(); |
ac305589 JM |
2633 | if (global->drv_priv[i] == NULL) { |
2634 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
c5121837 | 2635 | "'%s'", wpa_drivers[i]->name); |
ac305589 JM |
2636 | wpa_supplicant_deinit(global); |
2637 | return NULL; | |
2638 | } | |
2639 | } | |
2640 | ||
6fc6879b JM |
2641 | return global; |
2642 | } | |
2643 | ||
2644 | ||
2645 | /** | |
2646 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2647 | * @global: Pointer to global data from wpa_supplicant_init() | |
2648 | * Returns: 0 after successful event loop run, -1 on failure | |
2649 | * | |
2650 | * This function starts the main event loop and continues running as long as | |
2651 | * there are any remaining events. In most cases, this function is running as | |
2652 | * long as the %wpa_supplicant process in still in use. | |
2653 | */ | |
2654 | int wpa_supplicant_run(struct wpa_global *global) | |
2655 | { | |
2656 | struct wpa_supplicant *wpa_s; | |
2657 | ||
2658 | if (global->params.daemonize && | |
2659 | wpa_supplicant_daemon(global->params.pid_file)) | |
2660 | return -1; | |
2661 | ||
2662 | if (global->params.wait_for_monitor) { | |
2663 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2664 | if (wpa_s->ctrl_iface) | |
2665 | wpa_supplicant_ctrl_iface_wait( | |
2666 | wpa_s->ctrl_iface); | |
2667 | } | |
2668 | ||
0456ea16 JM |
2669 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
2670 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
6fc6879b JM |
2671 | |
2672 | eloop_run(); | |
2673 | ||
2674 | return 0; | |
2675 | } | |
2676 | ||
2677 | ||
2678 | /** | |
2679 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2680 | * @global: Pointer to global data from wpa_supplicant_init() | |
2681 | * | |
2682 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2683 | * allocated resources. Remaining network interfaces will also be removed. | |
2684 | */ | |
2685 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2686 | { | |
ac305589 JM |
2687 | int i; |
2688 | ||
6fc6879b JM |
2689 | if (global == NULL) |
2690 | return; | |
2691 | ||
b22128ef JM |
2692 | #ifdef CONFIG_P2P |
2693 | wpas_p2p_deinit_global(global); | |
2694 | #endif /* CONFIG_P2P */ | |
2695 | ||
6fc6879b JM |
2696 | while (global->ifaces) |
2697 | wpa_supplicant_remove_iface(global, global->ifaces); | |
2698 | ||
2699 | if (global->ctrl_iface) | |
2700 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
2701 | |
2702 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
2703 | |
2704 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2705 | #ifdef CONFIG_AP |
2706 | eap_server_unregister_methods(); | |
2707 | #endif /* CONFIG_AP */ | |
6fc6879b | 2708 | |
c5121837 | 2709 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2710 | if (!global->drv_priv[i]) |
2711 | continue; | |
c5121837 | 2712 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2713 | } |
2714 | os_free(global->drv_priv); | |
2715 | ||
d47fa330 JM |
2716 | random_deinit(); |
2717 | ||
6fc6879b JM |
2718 | eloop_destroy(); |
2719 | ||
2720 | if (global->params.pid_file) { | |
2721 | os_daemonize_terminate(global->params.pid_file); | |
2722 | os_free(global->params.pid_file); | |
2723 | } | |
2724 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
2725 | os_free(global->params.override_driver); |
2726 | os_free(global->params.override_ctrl_interface); | |
6fc6879b JM |
2727 | |
2728 | os_free(global); | |
daa70d49 | 2729 | wpa_debug_close_syslog(); |
6fc6879b JM |
2730 | wpa_debug_close_file(); |
2731 | } | |
611aea7d JM |
2732 | |
2733 | ||
2734 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
2735 | { | |
849b5dc7 JM |
2736 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && |
2737 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { | |
2738 | char country[3]; | |
2739 | country[0] = wpa_s->conf->country[0]; | |
2740 | country[1] = wpa_s->conf->country[1]; | |
2741 | country[2] = '\0'; | |
2742 | if (wpa_drv_set_country(wpa_s, country) < 0) { | |
2743 | wpa_printf(MSG_ERROR, "Failed to set country code " | |
2744 | "'%s'", country); | |
2745 | } | |
2746 | } | |
2747 | ||
611aea7d JM |
2748 | #ifdef CONFIG_WPS |
2749 | wpas_wps_update_config(wpa_s); | |
2750 | #endif /* CONFIG_WPS */ | |
2751 | ||
b22128ef JM |
2752 | #ifdef CONFIG_P2P |
2753 | wpas_p2p_update_config(wpa_s); | |
2754 | #endif /* CONFIG_P2P */ | |
2755 | ||
611aea7d JM |
2756 | wpa_s->conf->changed_parameters = 0; |
2757 | } | |
2f9c6aa6 JM |
2758 | |
2759 | ||
2760 | void ieee80211_sta_free_hw_features(struct hostapd_hw_modes *hw_features, | |
2761 | size_t num_hw_features) | |
2762 | { | |
2763 | size_t i; | |
2764 | ||
2765 | if (hw_features == NULL) | |
2766 | return; | |
2767 | ||
2768 | for (i = 0; i < num_hw_features; i++) { | |
2769 | os_free(hw_features[i].channels); | |
2770 | os_free(hw_features[i].rates); | |
2771 | } | |
2772 | ||
2773 | os_free(hw_features); | |
2774 | } | |
0fb337c1 JM |
2775 | |
2776 | ||
2777 | static void add_freq(int *freqs, int *num_freqs, int freq) | |
2778 | { | |
2779 | int i; | |
2780 | ||
2781 | for (i = 0; i < *num_freqs; i++) { | |
2782 | if (freqs[i] == freq) | |
2783 | return; | |
2784 | } | |
2785 | ||
2786 | freqs[*num_freqs] = freq; | |
2787 | (*num_freqs)++; | |
2788 | } | |
2789 | ||
2790 | ||
2791 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
2792 | { | |
2793 | struct wpa_bss *bss, *cbss; | |
2794 | const int max_freqs = 10; | |
2795 | int *freqs; | |
2796 | int num_freqs = 0; | |
2797 | ||
2798 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
2799 | if (freqs == NULL) | |
2800 | return NULL; | |
2801 | ||
2802 | cbss = wpa_s->current_bss; | |
2803 | ||
2804 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
2805 | if (bss == cbss) | |
2806 | continue; | |
2807 | if (bss->ssid_len == cbss->ssid_len && | |
2808 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
2809 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
2810 | add_freq(freqs, &num_freqs, bss->freq); | |
2811 | if (num_freqs == max_freqs) | |
2812 | break; | |
2813 | } | |
2814 | } | |
2815 | ||
2816 | if (num_freqs == 0) { | |
2817 | os_free(freqs); | |
2818 | freqs = NULL; | |
2819 | } | |
2820 | ||
2821 | return freqs; | |
2822 | } | |
2823 | ||
2824 | ||
2825 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
2826 | { | |
2827 | int timeout; | |
2828 | int count; | |
2829 | int *freqs = NULL; | |
2830 | ||
2831 | /* | |
2832 | * Add the failed BSSID into the blacklist and speed up next scan | |
2833 | * attempt if there could be other APs that could accept association. | |
2834 | * The current blacklist count indicates how many times we have tried | |
2835 | * connecting to this AP and multiple attempts mean that other APs are | |
2836 | * either not available or has already been tried, so that we can start | |
2837 | * increasing the delay here to avoid constant scanning. | |
2838 | */ | |
2839 | count = wpa_blacklist_add(wpa_s, bssid); | |
2840 | if (count == 1 && wpa_s->current_bss) { | |
2841 | /* | |
2842 | * This BSS was not in the blacklist before. If there is | |
2843 | * another BSS available for the same ESS, we should try that | |
2844 | * next. Otherwise, we may as well try this one once more | |
2845 | * before allowing other, likely worse, ESSes to be considered. | |
2846 | */ | |
2847 | freqs = get_bss_freqs_in_ess(wpa_s); | |
2848 | if (freqs) { | |
f049052b BG |
2849 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " |
2850 | "has been seen; try it next"); | |
0fb337c1 JM |
2851 | wpa_blacklist_add(wpa_s, bssid); |
2852 | /* | |
2853 | * On the next scan, go through only the known channels | |
2854 | * used in this ESS based on previous scans to speed up | |
2855 | * common load balancing use case. | |
2856 | */ | |
2857 | os_free(wpa_s->next_scan_freqs); | |
2858 | wpa_s->next_scan_freqs = freqs; | |
2859 | } | |
2860 | } | |
2861 | ||
2862 | switch (count) { | |
2863 | case 1: | |
2864 | timeout = 100; | |
2865 | break; | |
2866 | case 2: | |
2867 | timeout = 500; | |
2868 | break; | |
2869 | case 3: | |
2870 | timeout = 1000; | |
2871 | break; | |
2872 | default: | |
2873 | timeout = 5000; | |
2874 | } | |
2875 | ||
2876 | /* | |
2877 | * TODO: if more than one possible AP is available in scan results, | |
2878 | * could try the other ones before requesting a new scan. | |
2879 | */ | |
2880 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
2881 | 1000 * (timeout % 1000)); | |
2882 | } | |
22628eca JM |
2883 | |
2884 | ||
2885 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) | |
2886 | { | |
2887 | return wpa_s->conf->ap_scan == 2 || | |
2888 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); | |
2889 | } |