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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" |
6fc6879b JM |
23 | #include "eapol_supp/eapol_supp_sm.h" |
24 | #include "eap_peer/eap.h" | |
3ec97afe | 25 | #include "eap_server/eap_methods.h" |
3acb5005 | 26 | #include "rsn_supp/wpa.h" |
6fc6879b | 27 | #include "eloop.h" |
6fc6879b JM |
28 | #include "config.h" |
29 | #include "l2_packet/l2_packet.h" | |
30 | #include "wpa_supplicant_i.h" | |
2d5b792d | 31 | #include "driver_i.h" |
6fc6879b | 32 | #include "ctrl_iface.h" |
6fc6879b | 33 | #include "pcsc_funcs.h" |
90973fb2 | 34 | #include "common/version.h" |
3acb5005 JM |
35 | #include "rsn_supp/preauth.h" |
36 | #include "rsn_supp/pmksa_cache.h" | |
90973fb2 | 37 | #include "common/wpa_ctrl.h" |
6fc6879b | 38 | #include "mlme.h" |
90973fb2 | 39 | #include "common/ieee802_11_defs.h" |
72044390 | 40 | #include "p2p/p2p.h" |
6fc6879b JM |
41 | #include "blacklist.h" |
42 | #include "wpas_glue.h" | |
116654ce | 43 | #include "wps_supplicant.h" |
11ef8d35 | 44 | #include "ibss_rsn.h" |
c2a04078 | 45 | #include "sme.h" |
1f1b62a0 | 46 | #include "ap.h" |
b22128ef | 47 | #include "p2p_supplicant.h" |
8bac466b | 48 | #include "notify.h" |
60b94c98 | 49 | #include "bgscan.h" |
83922c2d | 50 | #include "bss.h" |
9ba9fa07 | 51 | #include "scan.h" |
6fc6879b JM |
52 | |
53 | const char *wpa_supplicant_version = | |
54 | "wpa_supplicant v" VERSION_STR "\n" | |
9e074973 | 55 | "Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
56 | |
57 | const char *wpa_supplicant_license = | |
58 | "This program is free software. You can distribute it and/or modify it\n" | |
59 | "under the terms of the GNU General Public License version 2.\n" | |
60 | "\n" | |
61 | "Alternatively, this software may be distributed under the terms of the\n" | |
62 | "BSD license. See README and COPYING for more details.\n" | |
63 | #ifdef EAP_TLS_OPENSSL | |
64 | "\nThis product includes software developed by the OpenSSL Project\n" | |
65 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
66 | #endif /* EAP_TLS_OPENSSL */ | |
67 | ; | |
68 | ||
69 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
70 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
71 | const char *wpa_supplicant_full_license1 = | |
72 | "This program is free software; you can redistribute it and/or modify\n" | |
73 | "it under the terms of the GNU General Public License version 2 as\n" | |
74 | "published by the Free Software Foundation.\n" | |
75 | "\n" | |
76 | "This program is distributed in the hope that it will be useful,\n" | |
77 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
78 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
79 | "GNU General Public License for more details.\n" | |
80 | "\n"; | |
81 | const char *wpa_supplicant_full_license2 = | |
82 | "You should have received a copy of the GNU General Public License\n" | |
83 | "along with this program; if not, write to the Free Software\n" | |
84 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
85 | "\n" | |
86 | "Alternatively, this software may be distributed under the terms of the\n" | |
87 | "BSD license.\n" | |
88 | "\n" | |
89 | "Redistribution and use in source and binary forms, with or without\n" | |
90 | "modification, are permitted provided that the following conditions are\n" | |
91 | "met:\n" | |
92 | "\n"; | |
93 | const char *wpa_supplicant_full_license3 = | |
94 | "1. Redistributions of source code must retain the above copyright\n" | |
95 | " notice, this list of conditions and the following disclaimer.\n" | |
96 | "\n" | |
97 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
98 | " notice, this list of conditions and the following disclaimer in the\n" | |
99 | " documentation and/or other materials provided with the distribution.\n" | |
100 | "\n"; | |
101 | const char *wpa_supplicant_full_license4 = | |
102 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
103 | " names of its contributors may be used to endorse or promote products\n" | |
104 | " derived from this software without specific prior written permission.\n" | |
105 | "\n" | |
106 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
107 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
108 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
109 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
110 | const char *wpa_supplicant_full_license5 = | |
111 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
112 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
113 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
114 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
115 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
116 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
117 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
118 | "\n"; | |
119 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
120 | ||
6fc6879b JM |
121 | extern int wpa_debug_level; |
122 | extern int wpa_debug_show_keys; | |
123 | extern int wpa_debug_timestamp; | |
c5121837 | 124 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
125 | |
126 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 127 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
128 | { |
129 | int i, set = 0; | |
130 | ||
131 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
132 | if (ssid->wep_key_len[i] == 0) | |
133 | continue; | |
134 | ||
135 | set = 1; | |
0382097e | 136 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, |
da64c266 | 137 | i, i == ssid->wep_tx_keyidx, NULL, 0, |
6fc6879b JM |
138 | ssid->wep_key[i], ssid->wep_key_len[i]); |
139 | } | |
140 | ||
141 | return set; | |
142 | } | |
143 | ||
144 | ||
145 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
146 | struct wpa_ssid *ssid) | |
147 | { | |
148 | u8 key[32]; | |
149 | size_t keylen; | |
71934751 | 150 | enum wpa_alg alg; |
6fc6879b JM |
151 | u8 seq[6] = { 0 }; |
152 | ||
153 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
154 | * sending unicast and multicast packets. */ | |
155 | ||
d7dcba70 | 156 | if (ssid->mode != WPAS_MODE_IBSS) { |
f049052b BG |
157 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " |
158 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
6fc6879b JM |
159 | return -1; |
160 | } | |
161 | ||
162 | if (!ssid->psk_set) { | |
f049052b BG |
163 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " |
164 | "WPA-None"); | |
6fc6879b JM |
165 | return -1; |
166 | } | |
167 | ||
168 | switch (wpa_s->group_cipher) { | |
169 | case WPA_CIPHER_CCMP: | |
170 | os_memcpy(key, ssid->psk, 16); | |
171 | keylen = 16; | |
172 | alg = WPA_ALG_CCMP; | |
173 | break; | |
174 | case WPA_CIPHER_TKIP: | |
175 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
176 | os_memcpy(key, ssid->psk, 16 + 8); | |
177 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
178 | keylen = 32; | |
179 | alg = WPA_ALG_TKIP; | |
180 | break; | |
181 | default: | |
f049052b BG |
182 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " |
183 | "WPA-None", wpa_s->group_cipher); | |
6fc6879b JM |
184 | return -1; |
185 | } | |
186 | ||
187 | /* TODO: should actually remember the previously used seq#, both for TX | |
188 | * and RX from each STA.. */ | |
189 | ||
0382097e | 190 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); |
6fc6879b JM |
191 | } |
192 | ||
193 | ||
194 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
195 | { | |
196 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
197 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 198 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
199 | bssid = wpa_s->pending_bssid; |
200 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
201 | MAC2STR(bssid)); | |
202 | wpa_blacklist_add(wpa_s, bssid); | |
203 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
204 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
205 | wpa_s->reassociate = 1; | |
48b84f18 BG |
206 | |
207 | /* | |
208 | * If we timed out, the AP or the local radio may be busy. | |
209 | * So, wait a second until scanning again. | |
210 | */ | |
211 | wpa_supplicant_req_scan(wpa_s, 1, 0); | |
6fc6879b JM |
212 | } |
213 | ||
214 | ||
215 | /** | |
216 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
217 | * @wpa_s: Pointer to wpa_supplicant data | |
218 | * @sec: Number of seconds after which to time out authentication | |
219 | * @usec: Number of microseconds after which to time out authentication | |
220 | * | |
221 | * This function is used to schedule a timeout for the current authentication | |
222 | * attempt. | |
223 | */ | |
224 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
225 | int sec, int usec) | |
226 | { | |
c2a04078 JM |
227 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
228 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
229 | return; |
230 | ||
f049052b | 231 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " |
6fc6879b JM |
232 | "%d usec", sec, usec); |
233 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
234 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
235 | } | |
236 | ||
237 | ||
238 | /** | |
239 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
240 | * @wpa_s: Pointer to wpa_supplicant data | |
241 | * | |
242 | * This function is used to cancel authentication timeout scheduled with | |
243 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
244 | * been completed. | |
245 | */ | |
246 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
247 | { | |
f049052b | 248 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); |
6fc6879b JM |
249 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
250 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
251 | } | |
252 | ||
253 | ||
254 | /** | |
255 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
256 | * @wpa_s: Pointer to wpa_supplicant data | |
257 | * | |
258 | * This function is used to configure EAPOL state machine based on the selected | |
259 | * authentication mode. | |
260 | */ | |
261 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
262 | { | |
263 | #ifdef IEEE8021X_EAPOL | |
264 | struct eapol_config eapol_conf; | |
265 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
266 | ||
53895c3b | 267 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 268 | if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
269 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
270 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
271 | /* | |
272 | * RSN IBSS authentication is per-STA and we can disable the | |
273 | * per-BSSID EAPOL authentication. | |
274 | */ | |
275 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
276 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
277 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
278 | return; | |
279 | } | |
280 | #endif /* CONFIG_IBSS_RSN */ | |
281 | ||
0a40ec6a JM |
282 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
283 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
284 | ||
6fc6879b JM |
285 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
286 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
287 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
288 | else | |
289 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
290 | ||
291 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
292 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
293 | eapol_conf.accept_802_1x_keys = 1; | |
294 | eapol_conf.required_keys = 0; | |
295 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
296 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
297 | } | |
298 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
299 | eapol_conf.required_keys |= | |
300 | EAPOL_REQUIRE_KEY_BROADCAST; | |
301 | } | |
302 | ||
c2a04078 | 303 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 304 | eapol_conf.required_keys = 0; |
6fc6879b JM |
305 | } |
306 | if (wpa_s->conf) | |
307 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
308 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
309 | eapol_conf.eap_disabled = |
310 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
311 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
312 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
313 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
314 | #endif /* IEEE8021X_EAPOL */ | |
315 | } | |
316 | ||
317 | ||
318 | /** | |
319 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
320 | * @wpa_s: Pointer to wpa_supplicant data | |
321 | * @ssid: Configuration data for the network | |
322 | * | |
323 | * This function is used to configure WPA state machine and related parameters | |
324 | * to a mode where WPA is not enabled. This is called as part of the | |
325 | * authentication configuration when the selected network does not use WPA. | |
326 | */ | |
327 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
328 | struct wpa_ssid *ssid) | |
329 | { | |
330 | int i; | |
331 | ||
ad08c363 JM |
332 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
333 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
334 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
335 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
336 | else | |
337 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
338 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
339 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
340 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
341 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
342 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
343 | wpa_s->mgmt_group_cipher = 0; | |
344 | ||
345 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
346 | if (ssid->wep_key_len[i] > 5) { | |
347 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
348 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
349 | break; | |
350 | } else if (ssid->wep_key_len[i] > 0) { | |
351 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
352 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
353 | break; | |
354 | } | |
355 | } | |
356 | ||
357 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
358 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
359 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
360 | wpa_s->pairwise_cipher); | |
361 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
362 | #ifdef CONFIG_IEEE80211W | |
363 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
364 | wpa_s->mgmt_group_cipher); | |
365 | #endif /* CONFIG_IEEE80211W */ | |
366 | ||
367 | pmksa_cache_clear_current(wpa_s->wpa); | |
368 | } | |
369 | ||
370 | ||
371 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
372 | { | |
60b94c98 | 373 | bgscan_deinit(wpa_s); |
6fc6879b JM |
374 | scard_deinit(wpa_s->scard); |
375 | wpa_s->scard = NULL; | |
376 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
377 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
378 | l2_packet_deinit(wpa_s->l2); | |
379 | wpa_s->l2 = NULL; | |
380 | if (wpa_s->l2_br) { | |
381 | l2_packet_deinit(wpa_s->l2_br); | |
382 | wpa_s->l2_br = NULL; | |
383 | } | |
384 | ||
385 | if (wpa_s->ctrl_iface) { | |
386 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
387 | wpa_s->ctrl_iface = NULL; | |
388 | } | |
389 | if (wpa_s->conf != NULL) { | |
8e56d189 JM |
390 | struct wpa_ssid *ssid; |
391 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
392 | wpas_notify_network_removed(wpa_s, ssid); | |
6fc6879b JM |
393 | wpa_config_free(wpa_s->conf); |
394 | wpa_s->conf = NULL; | |
395 | } | |
396 | ||
397 | os_free(wpa_s->confname); | |
398 | wpa_s->confname = NULL; | |
399 | ||
400 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
401 | eapol_sm_deinit(wpa_s->eapol); | |
402 | wpa_s->eapol = NULL; | |
403 | ||
404 | rsn_preauth_deinit(wpa_s->wpa); | |
405 | ||
281ff0aa GP |
406 | #ifdef CONFIG_TDLS |
407 | wpa_tdls_deinit(wpa_s->wpa); | |
408 | #endif /* CONFIG_TDLS */ | |
409 | ||
6fc6879b JM |
410 | pmksa_candidate_free(wpa_s->wpa); |
411 | wpa_sm_deinit(wpa_s->wpa); | |
412 | wpa_s->wpa = NULL; | |
413 | wpa_blacklist_clear(wpa_s); | |
414 | ||
83922c2d | 415 | wpa_bss_deinit(wpa_s); |
6fc6879b JM |
416 | |
417 | wpa_supplicant_cancel_scan(wpa_s); | |
418 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
419 | ||
420 | ieee80211_sta_deinit(wpa_s); | |
116654ce JM |
421 | |
422 | wpas_wps_deinit(wpa_s); | |
11ef8d35 | 423 | |
1ff73338 JM |
424 | wpabuf_free(wpa_s->pending_eapol_rx); |
425 | wpa_s->pending_eapol_rx = NULL; | |
426 | ||
11ef8d35 JM |
427 | #ifdef CONFIG_IBSS_RSN |
428 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
429 | wpa_s->ibss_rsn = NULL; | |
430 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 | 431 | |
e29853bb | 432 | sme_deinit(wpa_s); |
2d5b792d JM |
433 | |
434 | #ifdef CONFIG_AP | |
435 | wpa_supplicant_ap_deinit(wpa_s); | |
436 | #endif /* CONFIG_AP */ | |
b22128ef JM |
437 | |
438 | #ifdef CONFIG_P2P | |
439 | wpas_p2p_deinit(wpa_s); | |
440 | #endif /* CONFIG_P2P */ | |
f47d639d JM |
441 | |
442 | os_free(wpa_s->next_scan_freqs); | |
443 | wpa_s->next_scan_freqs = NULL; | |
6fc6879b JM |
444 | } |
445 | ||
446 | ||
447 | /** | |
448 | * wpa_clear_keys - Clear keys configured for the driver | |
449 | * @wpa_s: Pointer to wpa_supplicant data | |
450 | * @addr: Previously used BSSID or %NULL if not available | |
451 | * | |
452 | * This function clears the encryption keys that has been previously configured | |
453 | * for the driver. | |
454 | */ | |
455 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
456 | { | |
6fc6879b JM |
457 | if (wpa_s->keys_cleared) { |
458 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
459 | * timing issues with keys being cleared just before new keys | |
460 | * are set or just after association or something similar. This | |
461 | * shows up in group key handshake failing often because of the | |
462 | * client not receiving the first encrypted packets correctly. | |
463 | * Skipping some of the extra key clearing steps seems to help | |
464 | * in completing group key handshake more reliably. */ | |
f049052b BG |
465 | wpa_dbg(wpa_s, MSG_DEBUG, "No keys have been configured - " |
466 | "skip key clearing"); | |
6fc6879b JM |
467 | return; |
468 | } | |
469 | ||
470 | /* MLME-DELETEKEYS.request */ | |
0382097e JM |
471 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 0, 0, NULL, 0, NULL, 0); |
472 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 1, 0, NULL, 0, NULL, 0); | |
473 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 2, 0, NULL, 0, NULL, 0); | |
474 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 | 475 | #ifdef CONFIG_IEEE80211W |
0382097e JM |
476 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 4, 0, NULL, 0, NULL, 0); |
477 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 5, 0, NULL, 0, NULL, 0); | |
0e27f655 | 478 | #endif /* CONFIG_IEEE80211W */ |
6fc6879b JM |
479 | if (addr) { |
480 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
481 | 0); | |
482 | /* MLME-SETPROTECTION.request(None) */ | |
483 | wpa_drv_mlme_setprotection( | |
484 | wpa_s, addr, | |
485 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
486 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
487 | } | |
488 | wpa_s->keys_cleared = 1; | |
489 | } | |
490 | ||
491 | ||
492 | /** | |
493 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
494 | * @state: State (wpa_state; WPA_*) | |
495 | * Returns: The state name as a printable text string | |
496 | */ | |
71934751 | 497 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
6fc6879b JM |
498 | { |
499 | switch (state) { | |
500 | case WPA_DISCONNECTED: | |
501 | return "DISCONNECTED"; | |
502 | case WPA_INACTIVE: | |
503 | return "INACTIVE"; | |
8401a6b0 JM |
504 | case WPA_INTERFACE_DISABLED: |
505 | return "INTERFACE_DISABLED"; | |
6fc6879b JM |
506 | case WPA_SCANNING: |
507 | return "SCANNING"; | |
c2a04078 JM |
508 | case WPA_AUTHENTICATING: |
509 | return "AUTHENTICATING"; | |
6fc6879b JM |
510 | case WPA_ASSOCIATING: |
511 | return "ASSOCIATING"; | |
512 | case WPA_ASSOCIATED: | |
513 | return "ASSOCIATED"; | |
514 | case WPA_4WAY_HANDSHAKE: | |
515 | return "4WAY_HANDSHAKE"; | |
516 | case WPA_GROUP_HANDSHAKE: | |
517 | return "GROUP_HANDSHAKE"; | |
518 | case WPA_COMPLETED: | |
519 | return "COMPLETED"; | |
520 | default: | |
521 | return "UNKNOWN"; | |
522 | } | |
523 | } | |
524 | ||
525 | ||
cfe53c9a PS |
526 | #ifdef CONFIG_BGSCAN |
527 | ||
528 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
529 | { | |
530 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) | |
531 | return; | |
532 | ||
533 | bgscan_deinit(wpa_s); | |
534 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { | |
535 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { | |
536 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
537 | "bgscan"); | |
538 | /* | |
539 | * Live without bgscan; it is only used as a roaming | |
540 | * optimization, so the initial connection is not | |
541 | * affected. | |
542 | */ | |
543 | } else | |
544 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
545 | } else | |
546 | wpa_s->bgscan_ssid = NULL; | |
547 | } | |
548 | ||
549 | ||
550 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
551 | { | |
552 | if (wpa_s->bgscan_ssid != NULL) { | |
553 | bgscan_deinit(wpa_s); | |
554 | wpa_s->bgscan_ssid = NULL; | |
555 | } | |
556 | } | |
557 | ||
558 | #endif /* CONFIG_BGSCAN */ | |
559 | ||
560 | ||
6fc6879b JM |
561 | /** |
562 | * wpa_supplicant_set_state - Set current connection state | |
563 | * @wpa_s: Pointer to wpa_supplicant data | |
564 | * @state: The new connection state | |
565 | * | |
566 | * This function is called whenever the connection state changes, e.g., | |
567 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
568 | */ | |
71934751 JM |
569 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
570 | enum wpa_states state) | |
6fc6879b | 571 | { |
27f43d8d MH |
572 | enum wpa_states old_state = wpa_s->wpa_state; |
573 | ||
f049052b BG |
574 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", |
575 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
576 | wpa_supplicant_state_txt(state)); | |
6fc6879b | 577 | |
cb8564b1 DW |
578 | if (state != WPA_SCANNING) |
579 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
580 | ||
6fc6879b JM |
581 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
582 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
583 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
584 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
585 | MACSTR " completed %s [id=%d id_str=%s]", | |
586 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
587 | "(reauth)" : "(auth)", | |
588 | ssid ? ssid->id : -1, | |
589 | ssid && ssid->id_str ? ssid->id_str : ""); | |
590 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
591 | wpa_s->new_connection = 0; | |
592 | wpa_s->reassociated_connection = 1; | |
593 | wpa_drv_set_operstate(wpa_s, 1); | |
99ac2913 FF |
594 | #ifndef IEEE8021X_EAPOL |
595 | wpa_drv_set_supp_port(wpa_s, 1); | |
596 | #endif /* IEEE8021X_EAPOL */ | |
17a4734d | 597 | wpa_s->after_wps = 0; |
b22128ef JM |
598 | #ifdef CONFIG_P2P |
599 | wpas_p2p_completed(wpa_s); | |
600 | #endif /* CONFIG_P2P */ | |
6fc6879b JM |
601 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
602 | state == WPA_ASSOCIATED) { | |
603 | wpa_s->new_connection = 1; | |
604 | wpa_drv_set_operstate(wpa_s, 0); | |
99ac2913 FF |
605 | #ifndef IEEE8021X_EAPOL |
606 | wpa_drv_set_supp_port(wpa_s, 0); | |
607 | #endif /* IEEE8021X_EAPOL */ | |
6fc6879b JM |
608 | } |
609 | wpa_s->wpa_state = state; | |
27f43d8d | 610 | |
cfe53c9a PS |
611 | #ifdef CONFIG_BGSCAN |
612 | if (state == WPA_COMPLETED) | |
613 | wpa_supplicant_start_bgscan(wpa_s); | |
614 | else | |
615 | wpa_supplicant_stop_bgscan(wpa_s); | |
616 | #endif /* CONFIG_BGSCAN */ | |
617 | ||
5bbf9f10 | 618 | if (wpa_s->wpa_state != old_state) { |
27f43d8d | 619 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
5bbf9f10 PS |
620 | |
621 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
622 | old_state == WPA_COMPLETED) | |
623 | wpas_notify_auth_changed(wpa_s); | |
624 | } | |
6fc6879b JM |
625 | } |
626 | ||
627 | ||
1a1bf008 JM |
628 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
629 | { | |
630 | int pending = 0; | |
631 | #ifdef CONFIG_WPS | |
632 | struct wpa_supplicant *wpa_s = global->ifaces; | |
633 | while (wpa_s) { | |
634 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
635 | pending = 1; | |
636 | wpa_s = wpa_s->next; | |
637 | } | |
638 | #endif /* CONFIG_WPS */ | |
639 | if (pending) | |
640 | return; | |
641 | eloop_terminate(); | |
642 | } | |
643 | ||
644 | ||
0456ea16 | 645 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
6fc6879b | 646 | { |
0456ea16 | 647 | struct wpa_global *global = signal_ctx; |
6fc6879b JM |
648 | struct wpa_supplicant *wpa_s; |
649 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
650 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " | |
651 | "received", sig); | |
652 | } | |
1a1bf008 | 653 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
654 | } |
655 | ||
656 | ||
b22128ef | 657 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) |
6fc6879b | 658 | { |
71934751 | 659 | enum wpa_states old_state = wpa_s->wpa_state; |
27f43d8d | 660 | |
6fc6879b JM |
661 | wpa_s->pairwise_cipher = 0; |
662 | wpa_s->group_cipher = 0; | |
663 | wpa_s->mgmt_group_cipher = 0; | |
664 | wpa_s->key_mgmt = 0; | |
8401a6b0 JM |
665 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
666 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
27f43d8d MH |
667 | |
668 | if (wpa_s->wpa_state != old_state) | |
669 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
670 | } |
671 | ||
672 | ||
673 | /** | |
674 | * wpa_supplicant_reload_configuration - Reload configuration data | |
675 | * @wpa_s: Pointer to wpa_supplicant data | |
676 | * Returns: 0 on success or -1 if configuration parsing failed | |
677 | * | |
678 | * This function can be used to request that the configuration data is reloaded | |
679 | * (e.g., after configuration file change). This function is reloading | |
680 | * configuration only for one interface, so this may need to be called multiple | |
681 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
682 | * interfaces need reconfiguration. | |
683 | */ | |
684 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
685 | { | |
686 | struct wpa_config *conf; | |
8bac466b | 687 | struct wpa_ssid *old_ssid; |
6fc6879b | 688 | int reconf_ctrl; |
8bac466b JM |
689 | int old_ap_scan; |
690 | ||
6fc6879b JM |
691 | if (wpa_s->confname == NULL) |
692 | return -1; | |
693 | conf = wpa_config_read(wpa_s->confname); | |
694 | if (conf == NULL) { | |
695 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
696 | "file '%s' - exiting", wpa_s->confname); | |
697 | return -1; | |
698 | } | |
611aea7d | 699 | conf->changed_parameters = (unsigned int) -1; |
6fc6879b JM |
700 | |
701 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
702 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
703 | os_strcmp(conf->ctrl_interface, | |
704 | wpa_s->conf->ctrl_interface) != 0); | |
705 | ||
706 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
707 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
708 | wpa_s->ctrl_iface = NULL; | |
709 | } | |
710 | ||
711 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
8bac466b | 712 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 713 | wpa_s->current_ssid = NULL; |
8bac466b JM |
714 | if (old_ssid != wpa_s->current_ssid) |
715 | wpas_notify_network_changed(wpa_s); | |
716 | ||
6fc6879b JM |
717 | /* |
718 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
719 | * pkcs11_engine_path, pkcs11_module_path. | |
720 | */ | |
56586197 | 721 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
722 | /* |
723 | * Clear forced success to clear EAP state for next | |
724 | * authentication. | |
725 | */ | |
726 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
727 | } | |
728 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
729 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
730 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
731 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
732 | |
733 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
734 | wpa_config_free(wpa_s->conf); |
735 | wpa_s->conf = conf; | |
8bac466b JM |
736 | if (old_ap_scan != wpa_s->conf->ap_scan) |
737 | wpas_notify_ap_scan_changed(wpa_s); | |
738 | ||
6fc6879b JM |
739 | if (reconf_ctrl) |
740 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
741 | ||
611aea7d JM |
742 | wpa_supplicant_update_config(wpa_s); |
743 | ||
6fc6879b | 744 | wpa_supplicant_clear_status(wpa_s); |
43a38635 JM |
745 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
746 | wpa_s->reassociate = 1; | |
747 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
748 | } | |
f049052b | 749 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); |
6fc6879b JM |
750 | return 0; |
751 | } | |
752 | ||
753 | ||
0456ea16 | 754 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
6fc6879b | 755 | { |
0456ea16 | 756 | struct wpa_global *global = signal_ctx; |
6fc6879b | 757 | struct wpa_supplicant *wpa_s; |
6fc6879b | 758 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
f049052b BG |
759 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", |
760 | sig); | |
6fc6879b | 761 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { |
1a1bf008 | 762 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
763 | } |
764 | } | |
765 | } | |
766 | ||
767 | ||
508545f3 | 768 | enum wpa_cipher cipher_suite2driver(int cipher) |
6fc6879b JM |
769 | { |
770 | switch (cipher) { | |
771 | case WPA_CIPHER_NONE: | |
772 | return CIPHER_NONE; | |
773 | case WPA_CIPHER_WEP40: | |
774 | return CIPHER_WEP40; | |
775 | case WPA_CIPHER_WEP104: | |
776 | return CIPHER_WEP104; | |
777 | case WPA_CIPHER_CCMP: | |
778 | return CIPHER_CCMP; | |
779 | case WPA_CIPHER_TKIP: | |
780 | default: | |
781 | return CIPHER_TKIP; | |
782 | } | |
783 | } | |
784 | ||
785 | ||
508545f3 | 786 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
6fc6879b JM |
787 | { |
788 | switch (key_mgmt) { | |
789 | case WPA_KEY_MGMT_NONE: | |
790 | return KEY_MGMT_NONE; | |
791 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
792 | return KEY_MGMT_802_1X_NO_WPA; | |
793 | case WPA_KEY_MGMT_IEEE8021X: | |
794 | return KEY_MGMT_802_1X; | |
795 | case WPA_KEY_MGMT_WPA_NONE: | |
796 | return KEY_MGMT_WPA_NONE; | |
797 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
798 | return KEY_MGMT_FT_802_1X; | |
799 | case WPA_KEY_MGMT_FT_PSK: | |
800 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
801 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
802 | return KEY_MGMT_802_1X_SHA256; | |
803 | case WPA_KEY_MGMT_PSK_SHA256: | |
804 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
805 | case WPA_KEY_MGMT_WPS: |
806 | return KEY_MGMT_WPS; | |
6fc6879b JM |
807 | case WPA_KEY_MGMT_PSK: |
808 | default: | |
809 | return KEY_MGMT_PSK; | |
810 | } | |
811 | } | |
812 | ||
813 | ||
814 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
815 | struct wpa_ssid *ssid, | |
816 | struct wpa_ie_data *ie) | |
817 | { | |
818 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
819 | if (ret) { | |
820 | if (ret == -2) { | |
821 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
822 | "from association info"); | |
823 | } | |
824 | return -1; | |
825 | } | |
826 | ||
f049052b BG |
827 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " |
828 | "cipher suites"); | |
6fc6879b JM |
829 | if (!(ie->group_cipher & ssid->group_cipher)) { |
830 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
831 | "cipher 0x%x (mask 0x%x) - reject", | |
832 | ie->group_cipher, ssid->group_cipher); | |
833 | return -1; | |
834 | } | |
835 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
836 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
837 | "cipher 0x%x (mask 0x%x) - reject", | |
838 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
839 | return -1; | |
840 | } | |
841 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
842 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
843 | "management 0x%x (mask 0x%x) - reject", | |
844 | ie->key_mgmt, ssid->key_mgmt); | |
845 | return -1; | |
846 | } | |
847 | ||
848 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 849 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
70f8cc8e | 850 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
6fc6879b JM |
851 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
852 | "that does not support management frame protection - " | |
853 | "reject"); | |
854 | return -1; | |
855 | } | |
856 | #endif /* CONFIG_IEEE80211W */ | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
861 | ||
862 | /** | |
863 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
864 | * @wpa_s: Pointer to wpa_supplicant data | |
865 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
866 | * @ssid: Configuration data for the selected network | |
867 | * @wpa_ie: Buffer for the WPA/RSN IE | |
868 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
869 | * used buffer length in case the functions returns success. | |
870 | * Returns: 0 on success or -1 on failure | |
871 | * | |
872 | * This function is used to configure authentication and encryption parameters | |
873 | * based on the network configuration and scan result for the selected BSS (if | |
874 | * available). | |
875 | */ | |
876 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 877 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
6fc6879b JM |
878 | u8 *wpa_ie, size_t *wpa_ie_len) |
879 | { | |
880 | struct wpa_ie_data ie; | |
881 | int sel, proto; | |
882 | const u8 *bss_wpa, *bss_rsn; | |
883 | ||
884 | if (bss) { | |
6fa81a3b JM |
885 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
886 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
6fc6879b JM |
887 | } else |
888 | bss_wpa = bss_rsn = NULL; | |
889 | ||
890 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
891 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
892 | (ie.group_cipher & ssid->group_cipher) && | |
893 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
894 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 895 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); |
6fc6879b JM |
896 | proto = WPA_PROTO_RSN; |
897 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
898 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
899 | (ie.group_cipher & ssid->group_cipher) && | |
900 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
901 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 902 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); |
6fc6879b JM |
903 | proto = WPA_PROTO_WPA; |
904 | } else if (bss) { | |
905 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
906 | return -1; | |
907 | } else { | |
908 | if (ssid->proto & WPA_PROTO_RSN) | |
909 | proto = WPA_PROTO_RSN; | |
910 | else | |
911 | proto = WPA_PROTO_WPA; | |
912 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
913 | os_memset(&ie, 0, sizeof(ie)); | |
914 | ie.group_cipher = ssid->group_cipher; | |
915 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
916 | ie.key_mgmt = ssid->key_mgmt; | |
917 | #ifdef CONFIG_IEEE80211W | |
918 | ie.mgmt_group_cipher = | |
70f8cc8e | 919 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
6fc6879b JM |
920 | WPA_CIPHER_AES_128_CMAC : 0; |
921 | #endif /* CONFIG_IEEE80211W */ | |
f049052b BG |
922 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " |
923 | "based on configuration"); | |
6fc6879b JM |
924 | } else |
925 | proto = ie.proto; | |
926 | } | |
927 | ||
f049052b BG |
928 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " |
929 | "pairwise %d key_mgmt %d proto %d", | |
930 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
6fc6879b JM |
931 | #ifdef CONFIG_IEEE80211W |
932 | if (ssid->ieee80211w) { | |
f049052b BG |
933 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", |
934 | ie.mgmt_group_cipher); | |
6fc6879b JM |
935 | } |
936 | #endif /* CONFIG_IEEE80211W */ | |
937 | ||
938 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); | |
939 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
940 | !!(ssid->proto & WPA_PROTO_RSN)); | |
941 | ||
942 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
943 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
944 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
945 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
946 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
947 | return -1; | |
948 | } | |
949 | ||
950 | sel = ie.group_cipher & ssid->group_cipher; | |
951 | if (sel & WPA_CIPHER_CCMP) { | |
952 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
f049052b | 953 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); |
6fc6879b JM |
954 | } else if (sel & WPA_CIPHER_TKIP) { |
955 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
f049052b | 956 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); |
6fc6879b JM |
957 | } else if (sel & WPA_CIPHER_WEP104) { |
958 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
f049052b | 959 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); |
6fc6879b JM |
960 | } else if (sel & WPA_CIPHER_WEP40) { |
961 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
f049052b | 962 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); |
6fc6879b | 963 | } else { |
f049052b BG |
964 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " |
965 | "cipher"); | |
6fc6879b JM |
966 | return -1; |
967 | } | |
968 | ||
969 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
970 | if (sel & WPA_CIPHER_CCMP) { | |
971 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
f049052b | 972 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); |
6fc6879b JM |
973 | } else if (sel & WPA_CIPHER_TKIP) { |
974 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
f049052b | 975 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); |
6fc6879b JM |
976 | } else if (sel & WPA_CIPHER_NONE) { |
977 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
f049052b | 978 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); |
6fc6879b | 979 | } else { |
f049052b BG |
980 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " |
981 | "cipher"); | |
6fc6879b JM |
982 | return -1; |
983 | } | |
984 | ||
985 | sel = ie.key_mgmt & ssid->key_mgmt; | |
986 | if (0) { | |
987 | #ifdef CONFIG_IEEE80211R | |
988 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
989 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
f049052b | 990 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); |
6fc6879b JM |
991 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { |
992 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
f049052b | 993 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); |
6fc6879b | 994 | #endif /* CONFIG_IEEE80211R */ |
56586197 JM |
995 | #ifdef CONFIG_IEEE80211W |
996 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
997 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
f049052b | 998 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
999 | "WPA: using KEY_MGMT 802.1X with SHA256"); |
1000 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1001 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
f049052b | 1002 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1003 | "WPA: using KEY_MGMT PSK with SHA256"); |
1004 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1005 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
1006 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
f049052b | 1007 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); |
6fc6879b JM |
1008 | } else if (sel & WPA_KEY_MGMT_PSK) { |
1009 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
f049052b | 1010 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); |
6fc6879b JM |
1011 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { |
1012 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
f049052b | 1013 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); |
6fc6879b | 1014 | } else { |
f049052b BG |
1015 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " |
1016 | "authenticated key management type"); | |
6fc6879b JM |
1017 | return -1; |
1018 | } | |
1019 | ||
1020 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1021 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1022 | wpa_s->pairwise_cipher); | |
1023 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1024 | ||
1025 | #ifdef CONFIG_IEEE80211W | |
1026 | sel = ie.mgmt_group_cipher; | |
70f8cc8e | 1027 | if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION || |
0b60b0aa | 1028 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
1029 | sel = 0; |
1030 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1031 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
f049052b | 1032 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " |
6fc6879b JM |
1033 | "AES-128-CMAC"); |
1034 | } else { | |
1035 | wpa_s->mgmt_group_cipher = 0; | |
f049052b | 1036 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); |
6fc6879b JM |
1037 | } |
1038 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1039 | wpa_s->mgmt_group_cipher); | |
e820cf95 | 1040 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w); |
6fc6879b JM |
1041 | #endif /* CONFIG_IEEE80211W */ |
1042 | ||
1043 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
f049052b | 1044 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); |
6fc6879b JM |
1045 | return -1; |
1046 | } | |
1047 | ||
56586197 JM |
1048 | if (ssid->key_mgmt & |
1049 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256)) | |
6fc6879b JM |
1050 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
1051 | else | |
1052 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | ||
1057 | ||
1058 | /** | |
1059 | * wpa_supplicant_associate - Request association | |
1060 | * @wpa_s: Pointer to wpa_supplicant data | |
1061 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1062 | * @ssid: Configuration data for the selected network | |
1063 | * | |
1064 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1065 | */ | |
1066 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 1067 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
6fc6879b | 1068 | { |
5f3a6aa0 | 1069 | u8 wpa_ie[200]; |
6fc6879b | 1070 | size_t wpa_ie_len; |
8bac466b | 1071 | int use_crypt, ret, i, bssid_changed; |
abd9fafa | 1072 | int algs = WPA_AUTH_ALG_OPEN; |
71934751 | 1073 | enum wpa_cipher cipher_pairwise, cipher_group; |
6fc6879b JM |
1074 | struct wpa_driver_associate_params params; |
1075 | int wep_keys_set = 0; | |
1076 | struct wpa_driver_capa capa; | |
1077 | int assoc_failed = 0; | |
8bac466b | 1078 | struct wpa_ssid *old_ssid; |
6fc6879b | 1079 | |
78177a00 JM |
1080 | #ifdef CONFIG_IBSS_RSN |
1081 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1082 | wpa_s->ibss_rsn = NULL; | |
1083 | #endif /* CONFIG_IBSS_RSN */ | |
1084 | ||
2c5d725c JM |
1085 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || |
1086 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1581b38b JM |
1087 | #ifdef CONFIG_AP |
1088 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
f049052b BG |
1089 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " |
1090 | "mode"); | |
1581b38b JM |
1091 | return; |
1092 | } | |
1093 | wpa_supplicant_create_ap(wpa_s, ssid); | |
8f770587 | 1094 | wpa_s->current_bss = bss; |
1581b38b | 1095 | #else /* CONFIG_AP */ |
f049052b BG |
1096 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " |
1097 | "the build"); | |
1581b38b JM |
1098 | #endif /* CONFIG_AP */ |
1099 | return; | |
1100 | } | |
1101 | ||
52c9e6f3 JM |
1102 | #ifdef CONFIG_TDLS |
1103 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), bss->ie_len); | |
1104 | #endif /* CONFIG_TDLS */ | |
1105 | ||
5cc4d64b JM |
1106 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
1107 | ssid->mode == IEEE80211_MODE_INFRA) { | |
c2a04078 JM |
1108 | sme_authenticate(wpa_s, bss, ssid); |
1109 | return; | |
1110 | } | |
1111 | ||
0c80427d | 1112 | os_memset(¶ms, 0, sizeof(params)); |
6fc6879b JM |
1113 | wpa_s->reassociate = 0; |
1114 | if (bss) { | |
1115 | #ifdef CONFIG_IEEE80211R | |
6fa81a3b | 1116 | const u8 *ie, *md = NULL; |
6fc6879b | 1117 | #endif /* CONFIG_IEEE80211R */ |
6fc6879b JM |
1118 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
1119 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
6fa81a3b | 1120 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
8bac466b | 1121 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1122 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1123 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1124 | if (bssid_changed) |
1125 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b | 1126 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1127 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
6fc6879b JM |
1128 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
1129 | md = ie + 2; | |
e7846b68 | 1130 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
91a05482 JM |
1131 | if (md) { |
1132 | /* Prepare for the next transition */ | |
76b7981d | 1133 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
91a05482 | 1134 | } |
6fc6879b | 1135 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1136 | #ifdef CONFIG_WPS |
1137 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1138 | wpa_s->conf->ap_scan == 2 && | |
1139 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1140 | /* Use ap_scan==1 style network selection to find the network | |
1141 | */ | |
1142 | wpa_s->scan_req = 2; | |
1143 | wpa_s->reassociate = 1; | |
1144 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1145 | return; | |
1146 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1147 | } else { |
1148 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1149 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1150 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1151 | } | |
1152 | wpa_supplicant_cancel_scan(wpa_s); | |
1153 | ||
1154 | /* Starting new association, so clear the possibly used WPA IE from the | |
1155 | * previous association. */ | |
1156 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1157 | ||
1158 | #ifdef IEEE8021X_EAPOL | |
1159 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1160 | if (ssid->leap) { | |
1161 | if (ssid->non_leap == 0) | |
abd9fafa | 1162 | algs = WPA_AUTH_ALG_LEAP; |
6fc6879b | 1163 | else |
abd9fafa | 1164 | algs |= WPA_AUTH_ALG_LEAP; |
6fc6879b JM |
1165 | } |
1166 | } | |
1167 | #endif /* IEEE8021X_EAPOL */ | |
f049052b | 1168 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); |
6fc6879b | 1169 | if (ssid->auth_alg) { |
abd9fafa | 1170 | algs = ssid->auth_alg; |
f049052b BG |
1171 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " |
1172 | "0x%x", algs); | |
6fc6879b | 1173 | } |
6fc6879b | 1174 | |
6fa81a3b JM |
1175 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
1176 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
6fc6879b JM |
1177 | (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK | |
1178 | WPA_KEY_MGMT_FT_IEEE8021X | | |
56586197 JM |
1179 | WPA_KEY_MGMT_FT_PSK | |
1180 | WPA_KEY_MGMT_IEEE8021X_SHA256 | | |
1181 | WPA_KEY_MGMT_PSK_SHA256))) { | |
6fc6879b JM |
1182 | int try_opportunistic; |
1183 | try_opportunistic = ssid->proactive_key_caching && | |
1184 | (ssid->proto & WPA_PROTO_RSN); | |
1185 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1186 | wpa_s->current_ssid, | |
1187 | try_opportunistic) == 0) | |
1188 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1189 | wpa_ie_len = sizeof(wpa_ie); | |
1190 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1191 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1192 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1193 | "key management and encryption suites"); | |
6fc6879b JM |
1194 | return; |
1195 | } | |
1196 | } else if (ssid->key_mgmt & | |
1197 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | | |
1198 | WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK | | |
56586197 JM |
1199 | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 | |
1200 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { | |
6fc6879b JM |
1201 | wpa_ie_len = sizeof(wpa_ie); |
1202 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1203 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1204 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1205 | "key management and encryption suites (no " | |
1206 | "scan results)"); | |
6fc6879b JM |
1207 | return; |
1208 | } | |
ad08c363 JM |
1209 | #ifdef CONFIG_WPS |
1210 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1211 | struct wpabuf *wps_ie; |
1212 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1213 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1214 | wpa_ie_len = wpabuf_len(wps_ie); | |
1215 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1216 | } else |
1217 | wpa_ie_len = 0; | |
ad08c363 JM |
1218 | wpabuf_free(wps_ie); |
1219 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
0c80427d JM |
1220 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
1221 | params.wps = WPS_MODE_PRIVACY; | |
1222 | else | |
1223 | params.wps = WPS_MODE_OPEN; | |
ad08c363 | 1224 | #endif /* CONFIG_WPS */ |
6fc6879b JM |
1225 | } else { |
1226 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1227 | wpa_ie_len = 0; | |
1228 | } | |
1229 | ||
5f3a6aa0 JM |
1230 | #ifdef CONFIG_P2P |
1231 | if (wpa_s->global->p2p) { | |
1232 | u8 *pos; | |
1233 | size_t len; | |
1234 | int res; | |
1235 | int p2p_group; | |
1236 | p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE; | |
1237 | pos = wpa_ie + wpa_ie_len; | |
1238 | len = sizeof(wpa_ie) - wpa_ie_len; | |
4c08c0bd | 1239 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group); |
5f3a6aa0 JM |
1240 | if (res >= 0) |
1241 | wpa_ie_len += res; | |
1242 | } | |
72044390 JM |
1243 | |
1244 | wpa_s->cross_connect_disallowed = 0; | |
1245 | if (bss) { | |
1246 | struct wpabuf *p2p; | |
1247 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1248 | if (p2p) { | |
1249 | wpa_s->cross_connect_disallowed = | |
1250 | p2p_get_cross_connect_disallowed(p2p); | |
1251 | wpabuf_free(p2p); | |
f049052b BG |
1252 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " |
1253 | "connection", | |
1254 | wpa_s->cross_connect_disallowed ? | |
1255 | "disallows" : "allows"); | |
72044390 JM |
1256 | } |
1257 | } | |
5f3a6aa0 JM |
1258 | #endif /* CONFIG_P2P */ |
1259 | ||
6fc6879b JM |
1260 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); |
1261 | use_crypt = 1; | |
1262 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1263 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1264 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1265 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1266 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1267 | use_crypt = 0; | |
1268 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1269 | use_crypt = 1; | |
1270 | wep_keys_set = 1; | |
1271 | } | |
1272 | } | |
ad08c363 JM |
1273 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1274 | use_crypt = 0; | |
6fc6879b JM |
1275 | |
1276 | #ifdef IEEE8021X_EAPOL | |
1277 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1278 | if ((ssid->eapol_flags & | |
1279 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1280 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1281 | !wep_keys_set) { | |
1282 | use_crypt = 0; | |
1283 | } else { | |
1284 | /* Assume that dynamic WEP-104 keys will be used and | |
1285 | * set cipher suites in order for drivers to expect | |
1286 | * encryption. */ | |
1287 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1288 | } | |
1289 | } | |
1290 | #endif /* IEEE8021X_EAPOL */ | |
1291 | ||
1292 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1293 | /* Set the key before (and later after) association */ | |
1294 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1295 | } | |
1296 | ||
6fc6879b | 1297 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
6fc6879b | 1298 | if (bss) { |
6fc6879b | 1299 | params.bssid = bss->bssid; |
6fa81a3b JM |
1300 | params.ssid = bss->ssid; |
1301 | params.ssid_len = bss->ssid_len; | |
6fc6879b JM |
1302 | params.freq = bss->freq; |
1303 | } else { | |
1304 | params.ssid = ssid->ssid; | |
1305 | params.ssid_len = ssid->ssid_len; | |
1306 | } | |
d7dcba70 JM |
1307 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
1308 | params.freq == 0) | |
6fc6879b JM |
1309 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
1310 | params.wpa_ie = wpa_ie; | |
1311 | params.wpa_ie_len = wpa_ie_len; | |
1312 | params.pairwise_suite = cipher_pairwise; | |
1313 | params.group_suite = cipher_group; | |
1314 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
1315 | params.auth_alg = algs; | |
1316 | params.mode = ssid->mode; | |
1317 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1318 | if (ssid->wep_key_len[i]) | |
1319 | params.wep_key[i] = ssid->wep_key[i]; | |
1320 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1321 | } | |
1322 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1323 | ||
c2a04078 | 1324 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1325 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1326 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1327 | params.passphrase = ssid->passphrase; | |
1328 | if (ssid->psk_set) | |
1329 | params.psk = ssid->psk; | |
1330 | } | |
1331 | ||
36b15723 JM |
1332 | params.drop_unencrypted = use_crypt; |
1333 | ||
6fc6879b | 1334 | #ifdef CONFIG_IEEE80211W |
70f8cc8e JM |
1335 | params.mgmt_frame_protection = ssid->ieee80211w; |
1336 | if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) { | |
6fa81a3b | 1337 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
97d3497e JM |
1338 | struct wpa_ie_data ie; |
1339 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1340 | ie.capabilities & | |
1341 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
f049052b BG |
1342 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " |
1343 | "MFP: require MFP"); | |
97d3497e JM |
1344 | params.mgmt_frame_protection = |
1345 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1346 | } | |
1347 | } | |
6fc6879b JM |
1348 | #endif /* CONFIG_IEEE80211W */ |
1349 | ||
6e3f4b89 JM |
1350 | #ifdef CONFIG_P2P |
1351 | if (wpa_s->global->p2p && | |
1352 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)) | |
1353 | params.p2p = 1; | |
1354 | #endif /* CONFIG_P2P */ | |
1355 | ||
eea2fd9e JM |
1356 | if (wpa_s->parent->set_sta_uapsd) |
1357 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1358 | else | |
1359 | params.uapsd = -1; | |
1360 | ||
c2a04078 | 1361 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1362 | ret = ieee80211_sta_associate(wpa_s, ¶ms); |
1363 | else | |
1364 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1365 | if (ret < 0) { | |
1366 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1367 | "failed"); | |
871f4dd0 JM |
1368 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { |
1369 | /* | |
1370 | * The driver is known to mean what is saying, so we | |
1371 | * can stop right here; the association will not | |
1372 | * succeed. | |
1373 | */ | |
1374 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
1375 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1376 | return; | |
1377 | } | |
6fc6879b JM |
1378 | /* try to continue anyway; new association will be tried again |
1379 | * after timeout */ | |
1380 | assoc_failed = 1; | |
1381 | } | |
1382 | ||
1383 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1384 | /* Set the key after the association just in case association | |
1385 | * cleared the previously configured key. */ | |
1386 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1387 | /* No need to timeout authentication since there is no key | |
1388 | * management. */ | |
1389 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1390 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b | 1391 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 1392 | } else if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
1393 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
1394 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
1395 | /* | |
1396 | * RSN IBSS authentication is per-STA and we can disable the | |
1397 | * per-BSSID authentication. | |
1398 | */ | |
1399 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
53895c3b | 1400 | #endif /* CONFIG_IBSS_RSN */ |
6fc6879b JM |
1401 | } else { |
1402 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1403 | int timeout = 60; |
1404 | ||
1405 | if (assoc_failed) { | |
1406 | /* give IBSS a bit more time */ | |
d7dcba70 | 1407 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
1d3c75b3 DW |
1408 | } else if (wpa_s->conf->ap_scan == 1) { |
1409 | /* give IBSS a bit more time */ | |
d7dcba70 | 1410 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
1d3c75b3 | 1411 | } |
6fc6879b JM |
1412 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1413 | } | |
1414 | ||
1415 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1416 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1417 | /* Set static WEP keys again */ | |
1418 | wpa_set_wep_keys(wpa_s, ssid); | |
1419 | } | |
1420 | ||
1421 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1422 | /* | |
1423 | * Do not allow EAP session resumption between different | |
1424 | * network configurations. | |
1425 | */ | |
1426 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1427 | } | |
8bac466b | 1428 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 1429 | wpa_s->current_ssid = ssid; |
8f770587 | 1430 | wpa_s->current_bss = bss; |
6fc6879b JM |
1431 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
1432 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1433 | if (old_ssid != wpa_s->current_ssid) |
1434 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1435 | } |
1436 | ||
1437 | ||
09f58c09 JM |
1438 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
1439 | const u8 *addr) | |
1440 | { | |
1441 | struct wpa_ssid *old_ssid; | |
1442 | ||
1443 | wpa_clear_keys(wpa_s, addr); | |
1444 | wpa_supplicant_mark_disassoc(wpa_s); | |
1445 | old_ssid = wpa_s->current_ssid; | |
1446 | wpa_s->current_ssid = NULL; | |
1447 | wpa_s->current_bss = NULL; | |
1448 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1449 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1450 | if (old_ssid != wpa_s->current_ssid) | |
1451 | wpas_notify_network_changed(wpa_s); | |
1452 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1453 | } | |
1454 | ||
1455 | ||
6fc6879b JM |
1456 | /** |
1457 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1458 | * @wpa_s: Pointer to wpa_supplicant data | |
1459 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1460 | * | |
1461 | * This function is used to request %wpa_supplicant to disassociate with the | |
1462 | * current AP. | |
1463 | */ | |
1464 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1465 | int reason_code) | |
1466 | { | |
1467 | u8 *addr = NULL; | |
8bac466b | 1468 | |
a8e16edc | 1469 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1470 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1471 | ieee80211_sta_disassociate(wpa_s, reason_code); |
1472 | else | |
1473 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); | |
1474 | addr = wpa_s->bssid; | |
1475 | } | |
09f58c09 JM |
1476 | |
1477 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1478 | } |
1479 | ||
1480 | ||
1481 | /** | |
1482 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1483 | * @wpa_s: Pointer to wpa_supplicant data | |
1484 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1485 | * | |
073ab58f | 1486 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1487 | * current AP. |
1488 | */ | |
1489 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1490 | int reason_code) | |
1491 | { | |
1492 | u8 *addr = NULL; | |
8bac466b | 1493 | |
a8e16edc | 1494 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1495 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1496 | ieee80211_sta_deauthenticate(wpa_s, reason_code); |
1497 | else | |
1498 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, | |
1499 | reason_code); | |
1500 | addr = wpa_s->bssid; | |
1501 | } | |
09f58c09 JM |
1502 | |
1503 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1504 | } |
1505 | ||
1506 | ||
86b89452 WS |
1507 | /** |
1508 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1509 | * @wpa_s: wpa_supplicant structure for a network interface | |
1510 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1511 | * | |
1512 | * Enables the specified network or all networks if no network specified. | |
1513 | */ | |
1514 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1515 | struct wpa_ssid *ssid) | |
1516 | { | |
1517 | struct wpa_ssid *other_ssid; | |
1518 | int was_disabled; | |
1519 | ||
1520 | if (ssid == NULL) { | |
4dac0245 JM |
1521 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1522 | other_ssid = other_ssid->next) { | |
1523 | if (other_ssid->disabled == 2) | |
1524 | continue; /* do not change persistent P2P group | |
1525 | * data */ | |
86b89452 WS |
1526 | if (other_ssid == wpa_s->current_ssid && |
1527 | other_ssid->disabled) | |
1528 | wpa_s->reassociate = 1; | |
1529 | ||
1530 | was_disabled = other_ssid->disabled; | |
1531 | ||
1532 | other_ssid->disabled = 0; | |
1533 | ||
1534 | if (was_disabled != other_ssid->disabled) | |
1535 | wpas_notify_network_enabled_changed( | |
1536 | wpa_s, other_ssid); | |
86b89452 WS |
1537 | } |
1538 | if (wpa_s->reassociate) | |
1539 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
4dac0245 | 1540 | } else if (ssid->disabled && ssid->disabled != 2) { |
adc8d4a7 KM |
1541 | if (wpa_s->current_ssid == NULL) { |
1542 | /* | |
1543 | * Try to reassociate since there is no current | |
1544 | * configuration and a new network was made available. | |
1545 | */ | |
1546 | wpa_s->reassociate = 1; | |
1547 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1548 | } | |
86b89452 WS |
1549 | |
1550 | was_disabled = ssid->disabled; | |
1551 | ||
1552 | ssid->disabled = 0; | |
1553 | ||
1554 | if (was_disabled != ssid->disabled) | |
1555 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1556 | } | |
1557 | } | |
1558 | ||
1559 | ||
1560 | /** | |
1561 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1562 | * @wpa_s: wpa_supplicant structure for a network interface | |
1563 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1564 | * | |
1565 | * Disables the specified network or all networks if no network specified. | |
1566 | */ | |
1567 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1568 | struct wpa_ssid *ssid) | |
1569 | { | |
1570 | struct wpa_ssid *other_ssid; | |
1571 | int was_disabled; | |
1572 | ||
1573 | if (ssid == NULL) { | |
4dac0245 JM |
1574 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1575 | other_ssid = other_ssid->next) { | |
86b89452 | 1576 | was_disabled = other_ssid->disabled; |
4dac0245 JM |
1577 | if (was_disabled == 2) |
1578 | continue; /* do not change persistent P2P group | |
1579 | * data */ | |
86b89452 WS |
1580 | |
1581 | other_ssid->disabled = 1; | |
1582 | ||
1583 | if (was_disabled != other_ssid->disabled) | |
1584 | wpas_notify_network_enabled_changed( | |
1585 | wpa_s, other_ssid); | |
86b89452 WS |
1586 | } |
1587 | if (wpa_s->current_ssid) | |
1588 | wpa_supplicant_disassociate( | |
1589 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
4dac0245 | 1590 | } else if (ssid->disabled != 2) { |
86b89452 WS |
1591 | if (ssid == wpa_s->current_ssid) |
1592 | wpa_supplicant_disassociate( | |
1593 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1594 | ||
1595 | was_disabled = ssid->disabled; | |
1596 | ||
1597 | ssid->disabled = 1; | |
1598 | ||
1599 | if (was_disabled != ssid->disabled) | |
1600 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1601 | } | |
1602 | } | |
1603 | ||
1604 | ||
1605 | /** | |
1606 | * wpa_supplicant_select_network - Attempt association with a network | |
1607 | * @wpa_s: wpa_supplicant structure for a network interface | |
1608 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1609 | */ | |
1610 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1611 | struct wpa_ssid *ssid) | |
1612 | { | |
1613 | ||
1614 | struct wpa_ssid *other_ssid; | |
1615 | ||
1616 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) | |
1617 | wpa_supplicant_disassociate( | |
1618 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1619 | ||
1620 | /* | |
1621 | * Mark all other networks disabled or mark all networks enabled if no | |
1622 | * network specified. | |
1623 | */ | |
4dac0245 JM |
1624 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1625 | other_ssid = other_ssid->next) { | |
86b89452 | 1626 | int was_disabled = other_ssid->disabled; |
4dac0245 JM |
1627 | if (was_disabled == 2) |
1628 | continue; /* do not change persistent P2P group data */ | |
86b89452 WS |
1629 | |
1630 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1631 | ||
1632 | if (was_disabled != other_ssid->disabled) | |
1633 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
86b89452 WS |
1634 | } |
1635 | wpa_s->disconnected = 0; | |
1636 | wpa_s->reassociate = 1; | |
1637 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1638 | ||
a1641d26 JM |
1639 | if (ssid) |
1640 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1641 | } |
1642 | ||
1643 | ||
1644 | /** | |
1645 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1646 | * @wpa_s: wpa_supplicant structure for a network interface | |
1647 | * @ap_scan: AP scan mode | |
1648 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1649 | * | |
1650 | */ | |
1651 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1652 | { | |
1653 | ||
1654 | int old_ap_scan; | |
1655 | ||
1656 | if (ap_scan < 0 || ap_scan > 2) | |
1657 | return -1; | |
1658 | ||
1659 | old_ap_scan = wpa_s->conf->ap_scan; | |
1660 | wpa_s->conf->ap_scan = ap_scan; | |
1661 | ||
1662 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1663 | wpas_notify_ap_scan_changed(wpa_s); | |
1664 | ||
1665 | return 0; | |
1666 | } | |
1667 | ||
1668 | ||
78633c37 SL |
1669 | /** |
1670 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
1671 | * @wpa_s: wpa_supplicant structure for a network interface | |
1672 | * @expire_age: Expiration age in seconds | |
1673 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
1674 | * | |
1675 | */ | |
1676 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
1677 | unsigned int bss_expire_age) | |
1678 | { | |
1679 | if (bss_expire_age < 10) { | |
1680 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
1681 | bss_expire_age); | |
1682 | return -1; | |
1683 | } | |
1684 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
1685 | bss_expire_age); | |
1686 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
1687 | ||
1688 | return 0; | |
1689 | } | |
1690 | ||
1691 | ||
1692 | /** | |
1693 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
1694 | * @wpa_s: wpa_supplicant structure for a network interface | |
1695 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
1696 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
1697 | * | |
1698 | */ | |
1699 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
1700 | unsigned int bss_expire_count) | |
1701 | { | |
1702 | if (bss_expire_count < 1) { | |
1703 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
1704 | bss_expire_count); | |
1705 | return -1; | |
1706 | } | |
1707 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
1708 | bss_expire_count); | |
1709 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
1710 | ||
1711 | return 0; | |
1712 | } | |
1713 | ||
1714 | ||
86b89452 WS |
1715 | /** |
1716 | * wpa_supplicant_set_debug_params - Set global debug params | |
1717 | * @global: wpa_global structure | |
1718 | * @debug_level: debug level | |
1719 | * @debug_timestamp: determines if show timestamp in debug data | |
1720 | * @debug_show_keys: determines if show keys in debug data | |
1721 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1722 | */ | |
1723 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1724 | int debug_timestamp, int debug_show_keys) | |
1725 | { | |
1726 | ||
1727 | int old_level, old_timestamp, old_show_keys; | |
1728 | ||
1729 | /* check for allowed debuglevels */ | |
14dc0011 PS |
1730 | if (debug_level != MSG_EXCESSIVE && |
1731 | debug_level != MSG_MSGDUMP && | |
86b89452 WS |
1732 | debug_level != MSG_DEBUG && |
1733 | debug_level != MSG_INFO && | |
1734 | debug_level != MSG_WARNING && | |
1735 | debug_level != MSG_ERROR) | |
1736 | return -1; | |
1737 | ||
1738 | old_level = wpa_debug_level; | |
1739 | old_timestamp = wpa_debug_timestamp; | |
1740 | old_show_keys = wpa_debug_show_keys; | |
1741 | ||
1742 | wpa_debug_level = debug_level; | |
1743 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1744 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1745 | ||
db9133ac WS |
1746 | if (wpa_debug_level != old_level) |
1747 | wpas_notify_debug_level_changed(global); | |
1748 | if (wpa_debug_timestamp != old_timestamp) | |
1749 | wpas_notify_debug_timestamp_changed(global); | |
1750 | if (wpa_debug_show_keys != old_show_keys) | |
1751 | wpas_notify_debug_show_keys_changed(global); | |
86b89452 WS |
1752 | |
1753 | return 0; | |
1754 | } | |
1755 | ||
1756 | ||
6fc6879b JM |
1757 | /** |
1758 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1759 | * @wpa_s: Pointer to wpa_supplicant data | |
1760 | * Returns: A pointer to the current network structure or %NULL on failure | |
1761 | */ | |
1762 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1763 | { | |
1764 | struct wpa_ssid *entry; | |
1765 | u8 ssid[MAX_SSID_LEN]; | |
1766 | int res; | |
1767 | size_t ssid_len; | |
1768 | u8 bssid[ETH_ALEN]; | |
1769 | int wired; | |
1770 | ||
c2a04078 | 1771 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b | 1772 | if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) { |
f049052b BG |
1773 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " |
1774 | "MLME"); | |
6fc6879b JM |
1775 | return NULL; |
1776 | } | |
1777 | } else { | |
1778 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
1779 | if (res < 0) { | |
f049052b BG |
1780 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " |
1781 | "driver"); | |
6fc6879b JM |
1782 | return NULL; |
1783 | } | |
1784 | ssid_len = res; | |
1785 | } | |
1786 | ||
c2a04078 | 1787 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1788 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
1789 | else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
f049052b BG |
1790 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " |
1791 | "driver"); | |
6fc6879b JM |
1792 | return NULL; |
1793 | } | |
1794 | ||
c2a04078 JM |
1795 | wired = wpa_s->conf->ap_scan == 0 && |
1796 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1797 | |
1798 | entry = wpa_s->conf->ssid; | |
1799 | while (entry) { | |
1800 | if (!entry->disabled && | |
1801 | ((ssid_len == entry->ssid_len && | |
1802 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1803 | (!entry->bssid_set || | |
1804 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1805 | return entry; | |
24c23d1b JM |
1806 | #ifdef CONFIG_WPS |
1807 | if (!entry->disabled && | |
1808 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1809 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1810 | (!entry->bssid_set || | |
1811 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1812 | return entry; | |
1813 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1814 | entry = entry->next; |
1815 | } | |
1816 | ||
1817 | return NULL; | |
1818 | } | |
1819 | ||
1820 | ||
1821 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
1822 | const char *name) | |
1823 | { | |
1824 | int i; | |
362f781e | 1825 | size_t len; |
74b1c84a | 1826 | const char *pos, *driver = name; |
6fc6879b JM |
1827 | |
1828 | if (wpa_s == NULL) | |
1829 | return -1; | |
1830 | ||
c5121837 | 1831 | if (wpa_drivers[0] == NULL) { |
f049052b BG |
1832 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " |
1833 | "wpa_supplicant"); | |
6fc6879b JM |
1834 | return -1; |
1835 | } | |
1836 | ||
1837 | if (name == NULL) { | |
1838 | /* default to first driver in the list */ | |
c5121837 | 1839 | wpa_s->driver = wpa_drivers[0]; |
8a5ab9f5 | 1840 | wpa_s->global_drv_priv = wpa_s->global->drv_priv[0]; |
6fc6879b JM |
1841 | return 0; |
1842 | } | |
1843 | ||
74b1c84a SO |
1844 | do { |
1845 | pos = os_strchr(driver, ','); | |
1846 | if (pos) | |
1847 | len = pos - driver; | |
1848 | else | |
1849 | len = os_strlen(driver); | |
1850 | ||
1851 | for (i = 0; wpa_drivers[i]; i++) { | |
1852 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1853 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
1854 | 0) { | |
1855 | wpa_s->driver = wpa_drivers[i]; | |
1856 | wpa_s->global_drv_priv = | |
1857 | wpa_s->global->drv_priv[i]; | |
1858 | return 0; | |
1859 | } | |
6fc6879b | 1860 | } |
74b1c84a SO |
1861 | |
1862 | driver = pos + 1; | |
1863 | } while (pos); | |
6fc6879b | 1864 | |
f049052b | 1865 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); |
6fc6879b JM |
1866 | return -1; |
1867 | } | |
1868 | ||
1869 | ||
a8e0505b JM |
1870 | /** |
1871 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
1872 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
1873 | * with struct wpa_driver_ops::init() | |
1874 | * @src_addr: Source address of the EAPOL frame | |
1875 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
1876 | * @len: Length of the EAPOL data | |
1877 | * | |
1878 | * This function is called for each received EAPOL frame. Most driver | |
1879 | * interfaces rely on more generic OS mechanism for receiving frames through | |
1880 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
1881 | * take care of received EAPOL frames and deliver them to the core supplicant | |
1882 | * code by calling this function. | |
1883 | */ | |
6fc6879b JM |
1884 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
1885 | const u8 *buf, size_t len) | |
1886 | { | |
1887 | struct wpa_supplicant *wpa_s = ctx; | |
1888 | ||
f049052b | 1889 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); |
6fc6879b JM |
1890 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); |
1891 | ||
1ff73338 JM |
1892 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1893 | /* | |
1894 | * There is possible race condition between receiving the | |
1895 | * association event and the EAPOL frame since they are coming | |
1896 | * through different paths from the driver. In order to avoid | |
1897 | * issues in trying to process the EAPOL frame before receiving | |
1898 | * association information, lets queue it for processing until | |
1899 | * the association event is received. | |
1900 | */ | |
f049052b BG |
1901 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " |
1902 | "of received EAPOL frame"); | |
1ff73338 JM |
1903 | wpabuf_free(wpa_s->pending_eapol_rx); |
1904 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1905 | if (wpa_s->pending_eapol_rx) { | |
1906 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1907 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1908 | ETH_ALEN); | |
1909 | } | |
1910 | return; | |
1911 | } | |
1912 | ||
db149ac9 JM |
1913 | #ifdef CONFIG_AP |
1914 | if (wpa_s->ap_iface) { | |
1915 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
1916 | return; | |
1917 | } | |
1918 | #endif /* CONFIG_AP */ | |
1919 | ||
6fc6879b | 1920 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
f049052b BG |
1921 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " |
1922 | "no key management is configured"); | |
6fc6879b JM |
1923 | return; |
1924 | } | |
1925 | ||
1926 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 1927 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 1928 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
9c972abb JM |
1929 | wpa_s->wpa_state != WPA_COMPLETED) && |
1930 | (wpa_s->current_ssid == NULL || | |
1931 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
1932 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
1933 | wpa_supplicant_req_auth_timeout( | |
1934 | wpa_s, | |
56586197 | 1935 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
1936 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
1937 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
1938 | 70 : 10, 0); |
1939 | } | |
1940 | wpa_s->eapol_received++; | |
1941 | ||
1942 | if (wpa_s->countermeasures) { | |
f049052b BG |
1943 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " |
1944 | "EAPOL packet"); | |
6fc6879b JM |
1945 | return; |
1946 | } | |
1947 | ||
8be18440 JM |
1948 | #ifdef CONFIG_IBSS_RSN |
1949 | if (wpa_s->current_ssid && | |
d7dcba70 | 1950 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
8be18440 JM |
1951 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
1952 | return; | |
1953 | } | |
1954 | #endif /* CONFIG_IBSS_RSN */ | |
1955 | ||
6fc6879b JM |
1956 | /* Source address of the incoming EAPOL frame could be compared to the |
1957 | * current BSSID. However, it is possible that a centralized | |
1958 | * Authenticator could be using another MAC address than the BSSID of | |
1959 | * an AP, so just allow any address to be used for now. The replies are | |
1960 | * still sent to the current BSSID (if available), though. */ | |
1961 | ||
1962 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 1963 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
1964 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
1965 | return; | |
1966 | wpa_drv_poll(wpa_s); | |
c2a04078 | 1967 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 1968 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 1969 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
1970 | /* |
1971 | * Set portValid = TRUE here since we are going to skip 4-way | |
1972 | * handshake processing which would normally set portValid. We | |
1973 | * need this to allow the EAPOL state machines to be completed | |
1974 | * without going through EAPOL-Key handshake. | |
1975 | */ | |
1976 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
1977 | } | |
1978 | } | |
1979 | ||
1980 | ||
6fc6879b JM |
1981 | /** |
1982 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
1983 | * @wpa_s: Pointer to wpa_supplicant data | |
1984 | * Returns: 0 on success, -1 on failure | |
1985 | * | |
1986 | * This function is called to initialize driver interface parameters. | |
1987 | * wpa_drv_init() must have been called before this function to initialize the | |
1988 | * driver interface. | |
1989 | */ | |
1990 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
1991 | { | |
1992 | static int interface_count = 0; | |
1993 | ||
1994 | if (wpa_s->driver->send_eapol) { | |
1995 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
1996 | if (addr) | |
1997 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
fdadd5fe JM |
1998 | } else if (!(wpa_s->drv_flags & |
1999 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
6fc6879b JM |
2000 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, |
2001 | wpa_drv_get_mac_addr(wpa_s), | |
2002 | ETH_P_EAPOL, | |
2003 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2004 | if (wpa_s->l2 == NULL) | |
2005 | return -1; | |
fdadd5fe JM |
2006 | } else { |
2007 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2008 | if (addr) | |
2009 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
6fc6879b JM |
2010 | } |
2011 | ||
2012 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
f049052b | 2013 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); |
6fc6879b JM |
2014 | return -1; |
2015 | } | |
2016 | ||
f049052b BG |
2017 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, |
2018 | MAC2STR(wpa_s->own_addr)); | |
6fc6879b JM |
2019 | |
2020 | if (wpa_s->bridge_ifname[0]) { | |
f049052b BG |
2021 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " |
2022 | "interface '%s'", wpa_s->bridge_ifname); | |
6fc6879b JM |
2023 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, |
2024 | wpa_s->own_addr, | |
2025 | ETH_P_EAPOL, | |
2026 | wpa_supplicant_rx_eapol, wpa_s, | |
2027 | 0); | |
2028 | if (wpa_s->l2_br == NULL) { | |
f049052b BG |
2029 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " |
2030 | "connection for the bridge interface '%s'", | |
2031 | wpa_s->bridge_ifname); | |
6fc6879b JM |
2032 | return -1; |
2033 | } | |
2034 | } | |
2035 | ||
6fc6879b JM |
2036 | wpa_clear_keys(wpa_s, NULL); |
2037 | ||
2038 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2039 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2040 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2041 | ||
f049052b | 2042 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
6fc6879b JM |
2043 | wpa_drv_flush_pmkid(wpa_s); |
2044 | ||
ba2a573c | 2045 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
74e259ec JM |
2046 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
2047 | wpa_supplicant_req_scan(wpa_s, interface_count, 100000); | |
2048 | interface_count++; | |
2049 | } else | |
2050 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
6fc6879b JM |
2051 | |
2052 | return 0; | |
2053 | } | |
2054 | ||
2055 | ||
2056 | static int wpa_supplicant_daemon(const char *pid_file) | |
2057 | { | |
2058 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2059 | return os_daemonize(pid_file); | |
2060 | } | |
2061 | ||
2062 | ||
2063 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2064 | { | |
2065 | struct wpa_supplicant *wpa_s; | |
2066 | ||
2067 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2068 | if (wpa_s == NULL) | |
2069 | return NULL; | |
2070 | wpa_s->scan_req = 1; | |
67b9bd08 | 2071 | wpa_s->scan_interval = 5; |
c302f207 | 2072 | wpa_s->new_connection = 1; |
b22128ef | 2073 | wpa_s->parent = wpa_s; |
6fc6879b JM |
2074 | |
2075 | return wpa_s; | |
2076 | } | |
2077 | ||
2078 | ||
2079 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
2080 | struct wpa_interface *iface) | |
2081 | { | |
362f781e JM |
2082 | const char *ifname, *driver; |
2083 | struct wpa_driver_capa capa; | |
2084 | ||
6fc6879b JM |
2085 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
2086 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
2087 | iface->confname ? iface->confname : "N/A", | |
2088 | iface->driver ? iface->driver : "default", | |
2089 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
2090 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
2091 | ||
6fc6879b JM |
2092 | if (iface->confname) { |
2093 | #ifdef CONFIG_BACKEND_FILE | |
2094 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
2095 | if (wpa_s->confname == NULL) { | |
2096 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
2097 | "for configuration file '%s'.", | |
2098 | iface->confname); | |
2099 | return -1; | |
2100 | } | |
2101 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
2102 | iface->confname, wpa_s->confname); | |
2103 | #else /* CONFIG_BACKEND_FILE */ | |
2104 | wpa_s->confname = os_strdup(iface->confname); | |
2105 | #endif /* CONFIG_BACKEND_FILE */ | |
2106 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
2107 | if (wpa_s->conf == NULL) { | |
2108 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
2109 | "configuration '%s'.", wpa_s->confname); | |
2110 | return -1; | |
2111 | } | |
2112 | ||
2113 | /* | |
2114 | * Override ctrl_interface and driver_param if set on command | |
2115 | * line. | |
2116 | */ | |
2117 | if (iface->ctrl_interface) { | |
2118 | os_free(wpa_s->conf->ctrl_interface); | |
2119 | wpa_s->conf->ctrl_interface = | |
2120 | os_strdup(iface->ctrl_interface); | |
2121 | } | |
2122 | ||
2123 | if (iface->driver_param) { | |
2124 | os_free(wpa_s->conf->driver_param); | |
2125 | wpa_s->conf->driver_param = | |
2126 | os_strdup(iface->driver_param); | |
2127 | } | |
2128 | } else | |
2129 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
2130 | iface->driver_param); | |
2131 | ||
2132 | if (wpa_s->conf == NULL) { | |
2133 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
2134 | return -1; | |
2135 | } | |
2136 | ||
2137 | if (iface->ifname == NULL) { | |
2138 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
2139 | return -1; | |
2140 | } | |
2141 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
2142 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
2143 | iface->ifname); | |
2144 | return -1; | |
2145 | } | |
2146 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
2147 | ||
2148 | if (iface->bridge_ifname) { | |
2149 | if (os_strlen(iface->bridge_ifname) >= | |
2150 | sizeof(wpa_s->bridge_ifname)) { | |
2151 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
2152 | "name '%s'.", iface->bridge_ifname); | |
2153 | return -1; | |
2154 | } | |
2155 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
2156 | sizeof(wpa_s->bridge_ifname)); | |
2157 | } | |
2158 | ||
6fc6879b JM |
2159 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2160 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2161 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2162 | ||
2163 | /* Initialize driver interface and register driver event handler before | |
2164 | * L2 receive handler so that association events are processed before | |
2165 | * EAPOL-Key packets if both become available for the same select() | |
2166 | * call. */ | |
362f781e JM |
2167 | driver = iface->driver; |
2168 | next_driver: | |
2169 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2170 | return -1; | |
2171 | ||
6fc6879b JM |
2172 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2173 | if (wpa_s->drv_priv == NULL) { | |
362f781e | 2174 | const char *pos; |
a5b9337f | 2175 | pos = driver ? os_strchr(driver, ',') : NULL; |
362f781e | 2176 | if (pos) { |
f049052b BG |
2177 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
2178 | "driver interface - try next driver wrapper"); | |
362f781e JM |
2179 | driver = pos + 1; |
2180 | goto next_driver; | |
2181 | } | |
f049052b BG |
2182 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " |
2183 | "interface"); | |
6fc6879b JM |
2184 | return -1; |
2185 | } | |
2186 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
f049052b BG |
2187 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " |
2188 | "driver_param '%s'", wpa_s->conf->driver_param); | |
6fc6879b JM |
2189 | return -1; |
2190 | } | |
2191 | ||
2192 | ifname = wpa_drv_get_ifname(wpa_s); | |
2193 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
f049052b BG |
2194 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " |
2195 | "interface name with '%s'", ifname); | |
6fc6879b JM |
2196 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); |
2197 | } | |
2198 | ||
2199 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2200 | return -1; | |
2201 | ||
2202 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2203 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2204 | NULL); | |
2205 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2206 | ||
2207 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2208 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2209 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
f049052b BG |
2210 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2211 | "dot11RSNAConfigPMKLifetime"); | |
6fc6879b JM |
2212 | return -1; |
2213 | } | |
2214 | ||
2215 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2216 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2217 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
f049052b | 2218 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
6fc6879b JM |
2219 | "dot11RSNAConfigPMKReauthThreshold"); |
2220 | return -1; | |
2221 | } | |
2222 | ||
2223 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2224 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2225 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
f049052b BG |
2226 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2227 | "dot11RSNAConfigSATimeout"); | |
6fc6879b JM |
2228 | return -1; |
2229 | } | |
2230 | ||
814782b9 JM |
2231 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
2232 | wpa_s->drv_flags = capa.flags; | |
2233 | if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { | |
2234 | if (ieee80211_sta_init(wpa_s)) | |
2235 | return -1; | |
2236 | } | |
2237 | wpa_s->max_scan_ssids = capa.max_scan_ssids; | |
2238 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; | |
c4ea4c5c | 2239 | wpa_s->max_stations = capa.max_stations; |
814782b9 JM |
2240 | } |
2241 | if (wpa_s->max_remain_on_chan == 0) | |
2242 | wpa_s->max_remain_on_chan = 1000; | |
2243 | ||
6fc6879b JM |
2244 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
2245 | return -1; | |
2246 | ||
281ff0aa GP |
2247 | #ifdef CONFIG_TDLS |
2248 | if (wpa_tdls_init(wpa_s->wpa)) | |
2249 | return -1; | |
2250 | #endif /* CONFIG_TDLS */ | |
2251 | ||
315ce40a JM |
2252 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2253 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
f049052b | 2254 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); |
6d158490 LR |
2255 | return -1; |
2256 | } | |
2257 | ||
6fc6879b JM |
2258 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
2259 | ||
116654ce JM |
2260 | if (wpas_wps_init(wpa_s)) |
2261 | return -1; | |
2262 | ||
6fc6879b JM |
2263 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2264 | return -1; | |
2265 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2266 | ||
2267 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2268 | if (wpa_s->ctrl_iface == NULL) { | |
2269 | wpa_printf(MSG_ERROR, | |
2270 | "Failed to initialize control interface '%s'.\n" | |
2271 | "You may have another wpa_supplicant process " | |
2272 | "already running or the file was\n" | |
2273 | "left by an unclean termination of wpa_supplicant " | |
2274 | "in which case you will need\n" | |
2275 | "to manually remove this file before starting " | |
2276 | "wpa_supplicant again.\n", | |
2277 | wpa_s->conf->ctrl_interface); | |
2278 | return -1; | |
2279 | } | |
2280 | ||
b22128ef JM |
2281 | #ifdef CONFIG_P2P |
2282 | if (wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
f049052b | 2283 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); |
b22128ef JM |
2284 | return -1; |
2285 | } | |
2286 | #endif /* CONFIG_P2P */ | |
2287 | ||
83922c2d JM |
2288 | if (wpa_bss_init(wpa_s) < 0) |
2289 | return -1; | |
83922c2d | 2290 | |
6fc6879b JM |
2291 | return 0; |
2292 | } | |
2293 | ||
2294 | ||
2ee055b3 JM |
2295 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
2296 | int notify) | |
6fc6879b JM |
2297 | { |
2298 | if (wpa_s->drv_priv) { | |
2299 | wpa_supplicant_deauthenticate(wpa_s, | |
2300 | WLAN_REASON_DEAUTH_LEAVING); | |
2301 | ||
6fc6879b JM |
2302 | wpa_drv_set_countermeasures(wpa_s, 0); |
2303 | wpa_clear_keys(wpa_s, NULL); | |
2304 | } | |
2305 | ||
8e56d189 JM |
2306 | wpa_supplicant_cleanup(wpa_s); |
2307 | ||
2ee055b3 JM |
2308 | if (notify) |
2309 | wpas_notify_iface_removed(wpa_s); | |
6fc6879b | 2310 | |
6fc6879b JM |
2311 | if (wpa_s->drv_priv) |
2312 | wpa_drv_deinit(wpa_s); | |
2313 | } | |
2314 | ||
2315 | ||
2316 | /** | |
2317 | * wpa_supplicant_add_iface - Add a new network interface | |
2318 | * @global: Pointer to global data from wpa_supplicant_init() | |
2319 | * @iface: Interface configuration options | |
2320 | * Returns: Pointer to the created interface or %NULL on failure | |
2321 | * | |
2322 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2323 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2324 | * main event loop has been started. In addition, new interfaces can be added | |
2325 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2326 | * e.g., when a hotplug network adapter is inserted. | |
2327 | */ | |
2328 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2329 | struct wpa_interface *iface) | |
2330 | { | |
2331 | struct wpa_supplicant *wpa_s; | |
d27df100 | 2332 | struct wpa_interface t_iface; |
8e56d189 | 2333 | struct wpa_ssid *ssid; |
6fc6879b JM |
2334 | |
2335 | if (global == NULL || iface == NULL) | |
2336 | return NULL; | |
2337 | ||
2338 | wpa_s = wpa_supplicant_alloc(); | |
2339 | if (wpa_s == NULL) | |
2340 | return NULL; | |
2341 | ||
d8222ae3 JM |
2342 | wpa_s->global = global; |
2343 | ||
d27df100 JM |
2344 | t_iface = *iface; |
2345 | if (global->params.override_driver) { | |
2346 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
2347 | "('%s' -> '%s')", | |
2348 | iface->driver, global->params.override_driver); | |
2349 | t_iface.driver = global->params.override_driver; | |
2350 | } | |
2351 | if (global->params.override_ctrl_interface) { | |
2352 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
2353 | "ctrl_interface ('%s' -> '%s')", | |
2354 | iface->ctrl_interface, | |
2355 | global->params.override_ctrl_interface); | |
2356 | t_iface.ctrl_interface = | |
2357 | global->params.override_ctrl_interface; | |
2358 | } | |
2359 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
2360 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2361 | iface->ifname); | |
2ee055b3 | 2362 | wpa_supplicant_deinit_iface(wpa_s, 0); |
6fc6879b JM |
2363 | os_free(wpa_s); |
2364 | return NULL; | |
2365 | } | |
2366 | ||
dc461de4 WS |
2367 | /* Notify the control interfaces about new iface */ |
2368 | if (wpas_notify_iface_added(wpa_s)) { | |
2ee055b3 | 2369 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2370 | os_free(wpa_s); |
2371 | return NULL; | |
2372 | } | |
1bd3f426 | 2373 | |
8e56d189 JM |
2374 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
2375 | wpas_notify_network_added(wpa_s, ssid); | |
2376 | ||
6fc6879b JM |
2377 | wpa_s->next = global->ifaces; |
2378 | global->ifaces = wpa_s; | |
2379 | ||
f049052b | 2380 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); |
6fc6879b JM |
2381 | |
2382 | return wpa_s; | |
2383 | } | |
2384 | ||
2385 | ||
2386 | /** | |
2387 | * wpa_supplicant_remove_iface - Remove a network interface | |
2388 | * @global: Pointer to global data from wpa_supplicant_init() | |
2389 | * @wpa_s: Pointer to the network interface to be removed | |
2390 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2391 | * | |
2392 | * This function can be used to dynamically remove network interfaces from | |
2393 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2394 | * addition, this function is used to remove all remaining interfaces when | |
2395 | * %wpa_supplicant is terminated. | |
2396 | */ | |
2397 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
2398 | struct wpa_supplicant *wpa_s) | |
2399 | { | |
2400 | struct wpa_supplicant *prev; | |
2401 | ||
2402 | /* Remove interface from the global list of interfaces */ | |
2403 | prev = global->ifaces; | |
2404 | if (prev == wpa_s) { | |
2405 | global->ifaces = wpa_s->next; | |
2406 | } else { | |
2407 | while (prev && prev->next != wpa_s) | |
2408 | prev = prev->next; | |
2409 | if (prev == NULL) | |
2410 | return -1; | |
2411 | prev->next = wpa_s->next; | |
2412 | } | |
2413 | ||
f049052b | 2414 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); |
6fc6879b | 2415 | |
b22128ef JM |
2416 | if (global->p2p_group_formation == wpa_s) |
2417 | global->p2p_group_formation = NULL; | |
2ee055b3 | 2418 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2419 | os_free(wpa_s); |
2420 | ||
2421 | return 0; | |
2422 | } | |
2423 | ||
2424 | ||
cf83fb0b PS |
2425 | /** |
2426 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
2427 | * @wpa_s: Pointer to the network interface | |
2428 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
2429 | */ | |
2430 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
2431 | { | |
2432 | const char *eapol_method; | |
2433 | ||
2434 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
2435 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
2436 | return "NO-EAP"; | |
2437 | } | |
2438 | ||
2439 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
2440 | if (eapol_method == NULL) | |
2441 | return "UNKNOWN-EAP"; | |
2442 | ||
2443 | return eapol_method; | |
2444 | } | |
2445 | ||
2446 | ||
6fc6879b JM |
2447 | /** |
2448 | * wpa_supplicant_get_iface - Get a new network interface | |
2449 | * @global: Pointer to global data from wpa_supplicant_init() | |
2450 | * @ifname: Interface name | |
2451 | * Returns: Pointer to the interface or %NULL if not found | |
2452 | */ | |
2453 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2454 | const char *ifname) | |
2455 | { | |
2456 | struct wpa_supplicant *wpa_s; | |
2457 | ||
2458 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2459 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2460 | return wpa_s; | |
2461 | } | |
2462 | return NULL; | |
2463 | } | |
2464 | ||
2465 | ||
50b16da1 | 2466 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae BG |
2467 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) |
2468 | { | |
2469 | struct wpa_supplicant *wpa_s = ctx; | |
2470 | if (wpa_s == NULL) | |
2471 | return NULL; | |
2472 | return wpa_s->ifname; | |
2473 | } | |
50b16da1 | 2474 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae BG |
2475 | |
2476 | ||
6fc6879b JM |
2477 | /** |
2478 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2479 | * @params: Parameters for %wpa_supplicant | |
2480 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2481 | * | |
2482 | * This function is used to initialize %wpa_supplicant. After successful | |
2483 | * initialization, the returned data pointer can be used to add and remove | |
2484 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2485 | */ | |
2486 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2487 | { | |
2488 | struct wpa_global *global; | |
ac305589 | 2489 | int ret, i; |
6fc6879b JM |
2490 | |
2491 | if (params == NULL) | |
2492 | return NULL; | |
2493 | ||
50b16da1 | 2494 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae | 2495 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); |
50b16da1 | 2496 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae | 2497 | |
6fc6879b | 2498 | wpa_debug_open_file(params->wpa_debug_file_path); |
daa70d49 SL |
2499 | if (params->wpa_debug_syslog) |
2500 | wpa_debug_open_syslog(); | |
6fc6879b | 2501 | |
12760815 | 2502 | ret = eap_register_methods(); |
6fc6879b JM |
2503 | if (ret) { |
2504 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2505 | if (ret == -2) | |
2506 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2507 | "the same EAP type."); | |
2508 | return NULL; | |
2509 | } | |
2510 | ||
2511 | global = os_zalloc(sizeof(*global)); | |
2512 | if (global == NULL) | |
2513 | return NULL; | |
b22128ef JM |
2514 | dl_list_init(&global->p2p_srv_bonjour); |
2515 | dl_list_init(&global->p2p_srv_upnp); | |
6fc6879b JM |
2516 | global->params.daemonize = params->daemonize; |
2517 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2518 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2519 | if (params->pid_file) | |
2520 | global->params.pid_file = os_strdup(params->pid_file); | |
2521 | if (params->ctrl_interface) | |
2522 | global->params.ctrl_interface = | |
2523 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
2524 | if (params->override_driver) |
2525 | global->params.override_driver = | |
2526 | os_strdup(params->override_driver); | |
2527 | if (params->override_ctrl_interface) | |
2528 | global->params.override_ctrl_interface = | |
2529 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
2530 | wpa_debug_level = global->params.wpa_debug_level = |
2531 | params->wpa_debug_level; | |
2532 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2533 | params->wpa_debug_show_keys; | |
2534 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2535 | params->wpa_debug_timestamp; | |
2536 | ||
f19858f5 JM |
2537 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); |
2538 | ||
0456ea16 | 2539 | if (eloop_init()) { |
6fc6879b JM |
2540 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
2541 | wpa_supplicant_deinit(global); | |
2542 | return NULL; | |
2543 | } | |
2544 | ||
d47fa330 JM |
2545 | random_init(); |
2546 | ||
6fc6879b JM |
2547 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); |
2548 | if (global->ctrl_iface == NULL) { | |
2549 | wpa_supplicant_deinit(global); | |
2550 | return NULL; | |
2551 | } | |
2552 | ||
dc461de4 WS |
2553 | if (wpas_notify_supplicant_initialized(global)) { |
2554 | wpa_supplicant_deinit(global); | |
2555 | return NULL; | |
6fc6879b JM |
2556 | } |
2557 | ||
c5121837 | 2558 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2559 | global->drv_count++; |
2560 | if (global->drv_count == 0) { | |
2561 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2562 | wpa_supplicant_deinit(global); | |
2563 | return NULL; | |
2564 | } | |
2565 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2566 | if (global->drv_priv == NULL) { | |
2567 | wpa_supplicant_deinit(global); | |
2568 | return NULL; | |
2569 | } | |
c5121837 JM |
2570 | for (i = 0; wpa_drivers[i]; i++) { |
2571 | if (!wpa_drivers[i]->global_init) | |
ac305589 | 2572 | continue; |
c5121837 | 2573 | global->drv_priv[i] = wpa_drivers[i]->global_init(); |
ac305589 JM |
2574 | if (global->drv_priv[i] == NULL) { |
2575 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
c5121837 | 2576 | "'%s'", wpa_drivers[i]->name); |
ac305589 JM |
2577 | wpa_supplicant_deinit(global); |
2578 | return NULL; | |
2579 | } | |
2580 | } | |
2581 | ||
6fc6879b JM |
2582 | return global; |
2583 | } | |
2584 | ||
2585 | ||
2586 | /** | |
2587 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2588 | * @global: Pointer to global data from wpa_supplicant_init() | |
2589 | * Returns: 0 after successful event loop run, -1 on failure | |
2590 | * | |
2591 | * This function starts the main event loop and continues running as long as | |
2592 | * there are any remaining events. In most cases, this function is running as | |
2593 | * long as the %wpa_supplicant process in still in use. | |
2594 | */ | |
2595 | int wpa_supplicant_run(struct wpa_global *global) | |
2596 | { | |
2597 | struct wpa_supplicant *wpa_s; | |
2598 | ||
2599 | if (global->params.daemonize && | |
2600 | wpa_supplicant_daemon(global->params.pid_file)) | |
2601 | return -1; | |
2602 | ||
2603 | if (global->params.wait_for_monitor) { | |
2604 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2605 | if (wpa_s->ctrl_iface) | |
2606 | wpa_supplicant_ctrl_iface_wait( | |
2607 | wpa_s->ctrl_iface); | |
2608 | } | |
2609 | ||
0456ea16 JM |
2610 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
2611 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
6fc6879b JM |
2612 | |
2613 | eloop_run(); | |
2614 | ||
2615 | return 0; | |
2616 | } | |
2617 | ||
2618 | ||
2619 | /** | |
2620 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2621 | * @global: Pointer to global data from wpa_supplicant_init() | |
2622 | * | |
2623 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2624 | * allocated resources. Remaining network interfaces will also be removed. | |
2625 | */ | |
2626 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2627 | { | |
ac305589 JM |
2628 | int i; |
2629 | ||
6fc6879b JM |
2630 | if (global == NULL) |
2631 | return; | |
2632 | ||
b22128ef JM |
2633 | #ifdef CONFIG_P2P |
2634 | wpas_p2p_deinit_global(global); | |
2635 | #endif /* CONFIG_P2P */ | |
2636 | ||
6fc6879b JM |
2637 | while (global->ifaces) |
2638 | wpa_supplicant_remove_iface(global, global->ifaces); | |
2639 | ||
2640 | if (global->ctrl_iface) | |
2641 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
2642 | |
2643 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
2644 | |
2645 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2646 | #ifdef CONFIG_AP |
2647 | eap_server_unregister_methods(); | |
2648 | #endif /* CONFIG_AP */ | |
6fc6879b | 2649 | |
c5121837 | 2650 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2651 | if (!global->drv_priv[i]) |
2652 | continue; | |
c5121837 | 2653 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2654 | } |
2655 | os_free(global->drv_priv); | |
2656 | ||
d47fa330 JM |
2657 | random_deinit(); |
2658 | ||
6fc6879b JM |
2659 | eloop_destroy(); |
2660 | ||
2661 | if (global->params.pid_file) { | |
2662 | os_daemonize_terminate(global->params.pid_file); | |
2663 | os_free(global->params.pid_file); | |
2664 | } | |
2665 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
2666 | os_free(global->params.override_driver); |
2667 | os_free(global->params.override_ctrl_interface); | |
6fc6879b JM |
2668 | |
2669 | os_free(global); | |
daa70d49 | 2670 | wpa_debug_close_syslog(); |
6fc6879b JM |
2671 | wpa_debug_close_file(); |
2672 | } | |
611aea7d JM |
2673 | |
2674 | ||
2675 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
2676 | { | |
2677 | #ifdef CONFIG_WPS | |
2678 | wpas_wps_update_config(wpa_s); | |
2679 | #endif /* CONFIG_WPS */ | |
2680 | ||
b22128ef JM |
2681 | #ifdef CONFIG_P2P |
2682 | wpas_p2p_update_config(wpa_s); | |
2683 | #endif /* CONFIG_P2P */ | |
2684 | ||
611aea7d JM |
2685 | wpa_s->conf->changed_parameters = 0; |
2686 | } | |
2f9c6aa6 JM |
2687 | |
2688 | ||
2689 | void ieee80211_sta_free_hw_features(struct hostapd_hw_modes *hw_features, | |
2690 | size_t num_hw_features) | |
2691 | { | |
2692 | size_t i; | |
2693 | ||
2694 | if (hw_features == NULL) | |
2695 | return; | |
2696 | ||
2697 | for (i = 0; i < num_hw_features; i++) { | |
2698 | os_free(hw_features[i].channels); | |
2699 | os_free(hw_features[i].rates); | |
2700 | } | |
2701 | ||
2702 | os_free(hw_features); | |
2703 | } | |
0fb337c1 JM |
2704 | |
2705 | ||
2706 | static void add_freq(int *freqs, int *num_freqs, int freq) | |
2707 | { | |
2708 | int i; | |
2709 | ||
2710 | for (i = 0; i < *num_freqs; i++) { | |
2711 | if (freqs[i] == freq) | |
2712 | return; | |
2713 | } | |
2714 | ||
2715 | freqs[*num_freqs] = freq; | |
2716 | (*num_freqs)++; | |
2717 | } | |
2718 | ||
2719 | ||
2720 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
2721 | { | |
2722 | struct wpa_bss *bss, *cbss; | |
2723 | const int max_freqs = 10; | |
2724 | int *freqs; | |
2725 | int num_freqs = 0; | |
2726 | ||
2727 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
2728 | if (freqs == NULL) | |
2729 | return NULL; | |
2730 | ||
2731 | cbss = wpa_s->current_bss; | |
2732 | ||
2733 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
2734 | if (bss == cbss) | |
2735 | continue; | |
2736 | if (bss->ssid_len == cbss->ssid_len && | |
2737 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
2738 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
2739 | add_freq(freqs, &num_freqs, bss->freq); | |
2740 | if (num_freqs == max_freqs) | |
2741 | break; | |
2742 | } | |
2743 | } | |
2744 | ||
2745 | if (num_freqs == 0) { | |
2746 | os_free(freqs); | |
2747 | freqs = NULL; | |
2748 | } | |
2749 | ||
2750 | return freqs; | |
2751 | } | |
2752 | ||
2753 | ||
2754 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
2755 | { | |
2756 | int timeout; | |
2757 | int count; | |
2758 | int *freqs = NULL; | |
2759 | ||
2760 | /* | |
2761 | * Add the failed BSSID into the blacklist and speed up next scan | |
2762 | * attempt if there could be other APs that could accept association. | |
2763 | * The current blacklist count indicates how many times we have tried | |
2764 | * connecting to this AP and multiple attempts mean that other APs are | |
2765 | * either not available or has already been tried, so that we can start | |
2766 | * increasing the delay here to avoid constant scanning. | |
2767 | */ | |
2768 | count = wpa_blacklist_add(wpa_s, bssid); | |
2769 | if (count == 1 && wpa_s->current_bss) { | |
2770 | /* | |
2771 | * This BSS was not in the blacklist before. If there is | |
2772 | * another BSS available for the same ESS, we should try that | |
2773 | * next. Otherwise, we may as well try this one once more | |
2774 | * before allowing other, likely worse, ESSes to be considered. | |
2775 | */ | |
2776 | freqs = get_bss_freqs_in_ess(wpa_s); | |
2777 | if (freqs) { | |
f049052b BG |
2778 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " |
2779 | "has been seen; try it next"); | |
0fb337c1 JM |
2780 | wpa_blacklist_add(wpa_s, bssid); |
2781 | /* | |
2782 | * On the next scan, go through only the known channels | |
2783 | * used in this ESS based on previous scans to speed up | |
2784 | * common load balancing use case. | |
2785 | */ | |
2786 | os_free(wpa_s->next_scan_freqs); | |
2787 | wpa_s->next_scan_freqs = freqs; | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | switch (count) { | |
2792 | case 1: | |
2793 | timeout = 100; | |
2794 | break; | |
2795 | case 2: | |
2796 | timeout = 500; | |
2797 | break; | |
2798 | case 3: | |
2799 | timeout = 1000; | |
2800 | break; | |
2801 | default: | |
2802 | timeout = 5000; | |
2803 | } | |
2804 | ||
2805 | /* | |
2806 | * TODO: if more than one possible AP is available in scan results, | |
2807 | * could try the other ones before requesting a new scan. | |
2808 | */ | |
2809 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
2810 | 1000 * (timeout % 1000)); | |
2811 | } |