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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant | |
d93dfbd5 | 3 | * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> |
6fc6879b JM |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * Alternatively, this software may be distributed under the terms of BSD | |
10 | * license. | |
11 | * | |
12 | * See README and COPYING for more details. | |
13 | * | |
14 | * This file implements functions for registering and unregistering | |
15 | * %wpa_supplicant interfaces. In addition, this file contains number of | |
16 | * functions for managing network connections. | |
17 | */ | |
18 | ||
19 | #include "includes.h" | |
20 | ||
21 | #include "common.h" | |
d47fa330 | 22 | #include "crypto/random.h" |
7d232e23 | 23 | #include "crypto/sha1.h" |
6fc6879b JM |
24 | #include "eapol_supp/eapol_supp_sm.h" |
25 | #include "eap_peer/eap.h" | |
3ec97afe | 26 | #include "eap_server/eap_methods.h" |
3acb5005 | 27 | #include "rsn_supp/wpa.h" |
6fc6879b | 28 | #include "eloop.h" |
6fc6879b JM |
29 | #include "config.h" |
30 | #include "l2_packet/l2_packet.h" | |
31 | #include "wpa_supplicant_i.h" | |
2d5b792d | 32 | #include "driver_i.h" |
6fc6879b | 33 | #include "ctrl_iface.h" |
6fc6879b | 34 | #include "pcsc_funcs.h" |
90973fb2 | 35 | #include "common/version.h" |
3acb5005 JM |
36 | #include "rsn_supp/preauth.h" |
37 | #include "rsn_supp/pmksa_cache.h" | |
90973fb2 | 38 | #include "common/wpa_ctrl.h" |
90973fb2 | 39 | #include "common/ieee802_11_defs.h" |
72044390 | 40 | #include "p2p/p2p.h" |
6fc6879b JM |
41 | #include "blacklist.h" |
42 | #include "wpas_glue.h" | |
116654ce | 43 | #include "wps_supplicant.h" |
11ef8d35 | 44 | #include "ibss_rsn.h" |
c2a04078 | 45 | #include "sme.h" |
04ea7b79 | 46 | #include "gas_query.h" |
1f1b62a0 | 47 | #include "ap.h" |
b22128ef | 48 | #include "p2p_supplicant.h" |
8bac466b | 49 | #include "notify.h" |
60b94c98 | 50 | #include "bgscan.h" |
83922c2d | 51 | #include "bss.h" |
9ba9fa07 | 52 | #include "scan.h" |
24f6497c | 53 | #include "offchannel.h" |
6fc6879b JM |
54 | |
55 | const char *wpa_supplicant_version = | |
56 | "wpa_supplicant v" VERSION_STR "\n" | |
57d38ddf | 57 | "Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
58 | |
59 | const char *wpa_supplicant_license = | |
60 | "This program is free software. You can distribute it and/or modify it\n" | |
61 | "under the terms of the GNU General Public License version 2.\n" | |
62 | "\n" | |
63 | "Alternatively, this software may be distributed under the terms of the\n" | |
64 | "BSD license. See README and COPYING for more details.\n" | |
65 | #ifdef EAP_TLS_OPENSSL | |
66 | "\nThis product includes software developed by the OpenSSL Project\n" | |
67 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
68 | #endif /* EAP_TLS_OPENSSL */ | |
69 | ; | |
70 | ||
71 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
72 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
73 | const char *wpa_supplicant_full_license1 = | |
74 | "This program is free software; you can redistribute it and/or modify\n" | |
75 | "it under the terms of the GNU General Public License version 2 as\n" | |
76 | "published by the Free Software Foundation.\n" | |
77 | "\n" | |
78 | "This program is distributed in the hope that it will be useful,\n" | |
79 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
80 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
81 | "GNU General Public License for more details.\n" | |
82 | "\n"; | |
83 | const char *wpa_supplicant_full_license2 = | |
84 | "You should have received a copy of the GNU General Public License\n" | |
85 | "along with this program; if not, write to the Free Software\n" | |
86 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
87 | "\n" | |
88 | "Alternatively, this software may be distributed under the terms of the\n" | |
89 | "BSD license.\n" | |
90 | "\n" | |
91 | "Redistribution and use in source and binary forms, with or without\n" | |
92 | "modification, are permitted provided that the following conditions are\n" | |
93 | "met:\n" | |
94 | "\n"; | |
95 | const char *wpa_supplicant_full_license3 = | |
96 | "1. Redistributions of source code must retain the above copyright\n" | |
97 | " notice, this list of conditions and the following disclaimer.\n" | |
98 | "\n" | |
99 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
100 | " notice, this list of conditions and the following disclaimer in the\n" | |
101 | " documentation and/or other materials provided with the distribution.\n" | |
102 | "\n"; | |
103 | const char *wpa_supplicant_full_license4 = | |
104 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
105 | " names of its contributors may be used to endorse or promote products\n" | |
106 | " derived from this software without specific prior written permission.\n" | |
107 | "\n" | |
108 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
109 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
110 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
111 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
112 | const char *wpa_supplicant_full_license5 = | |
113 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
114 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
115 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
116 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
117 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
118 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
119 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
120 | "\n"; | |
121 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
122 | ||
6fc6879b JM |
123 | extern int wpa_debug_level; |
124 | extern int wpa_debug_show_keys; | |
125 | extern int wpa_debug_timestamp; | |
c5121837 | 126 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
127 | |
128 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 129 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
130 | { |
131 | int i, set = 0; | |
132 | ||
133 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
134 | if (ssid->wep_key_len[i] == 0) | |
135 | continue; | |
136 | ||
137 | set = 1; | |
0382097e | 138 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, |
da64c266 | 139 | i, i == ssid->wep_tx_keyidx, NULL, 0, |
6fc6879b JM |
140 | ssid->wep_key[i], ssid->wep_key_len[i]); |
141 | } | |
142 | ||
143 | return set; | |
144 | } | |
145 | ||
146 | ||
147 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
148 | struct wpa_ssid *ssid) | |
149 | { | |
150 | u8 key[32]; | |
151 | size_t keylen; | |
71934751 | 152 | enum wpa_alg alg; |
6fc6879b JM |
153 | u8 seq[6] = { 0 }; |
154 | ||
155 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
156 | * sending unicast and multicast packets. */ | |
157 | ||
d7dcba70 | 158 | if (ssid->mode != WPAS_MODE_IBSS) { |
f049052b BG |
159 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " |
160 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
6fc6879b JM |
161 | return -1; |
162 | } | |
163 | ||
164 | if (!ssid->psk_set) { | |
f049052b BG |
165 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " |
166 | "WPA-None"); | |
6fc6879b JM |
167 | return -1; |
168 | } | |
169 | ||
170 | switch (wpa_s->group_cipher) { | |
171 | case WPA_CIPHER_CCMP: | |
172 | os_memcpy(key, ssid->psk, 16); | |
173 | keylen = 16; | |
174 | alg = WPA_ALG_CCMP; | |
175 | break; | |
176 | case WPA_CIPHER_TKIP: | |
177 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
178 | os_memcpy(key, ssid->psk, 16 + 8); | |
179 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
180 | keylen = 32; | |
181 | alg = WPA_ALG_TKIP; | |
182 | break; | |
183 | default: | |
f049052b BG |
184 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " |
185 | "WPA-None", wpa_s->group_cipher); | |
6fc6879b JM |
186 | return -1; |
187 | } | |
188 | ||
189 | /* TODO: should actually remember the previously used seq#, both for TX | |
190 | * and RX from each STA.. */ | |
191 | ||
0382097e | 192 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); |
6fc6879b JM |
193 | } |
194 | ||
195 | ||
196 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
197 | { | |
198 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
199 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 200 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
201 | bssid = wpa_s->pending_bssid; |
202 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
203 | MAC2STR(bssid)); | |
204 | wpa_blacklist_add(wpa_s, bssid); | |
205 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
206 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
207 | wpa_s->reassociate = 1; | |
48b84f18 BG |
208 | |
209 | /* | |
210 | * If we timed out, the AP or the local radio may be busy. | |
211 | * So, wait a second until scanning again. | |
212 | */ | |
213 | wpa_supplicant_req_scan(wpa_s, 1, 0); | |
6fc6879b JM |
214 | } |
215 | ||
216 | ||
217 | /** | |
218 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
219 | * @wpa_s: Pointer to wpa_supplicant data | |
220 | * @sec: Number of seconds after which to time out authentication | |
221 | * @usec: Number of microseconds after which to time out authentication | |
222 | * | |
223 | * This function is used to schedule a timeout for the current authentication | |
224 | * attempt. | |
225 | */ | |
226 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
227 | int sec, int usec) | |
228 | { | |
c2a04078 JM |
229 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
230 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
231 | return; |
232 | ||
f049052b | 233 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " |
6fc6879b JM |
234 | "%d usec", sec, usec); |
235 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
236 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
237 | } | |
238 | ||
239 | ||
240 | /** | |
241 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
242 | * @wpa_s: Pointer to wpa_supplicant data | |
243 | * | |
244 | * This function is used to cancel authentication timeout scheduled with | |
245 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
246 | * been completed. | |
247 | */ | |
248 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
249 | { | |
f049052b | 250 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); |
6fc6879b JM |
251 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
252 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
253 | } | |
254 | ||
255 | ||
256 | /** | |
257 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
258 | * @wpa_s: Pointer to wpa_supplicant data | |
259 | * | |
260 | * This function is used to configure EAPOL state machine based on the selected | |
261 | * authentication mode. | |
262 | */ | |
263 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
264 | { | |
265 | #ifdef IEEE8021X_EAPOL | |
266 | struct eapol_config eapol_conf; | |
267 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
268 | ||
53895c3b | 269 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 270 | if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
271 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
272 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
273 | /* | |
274 | * RSN IBSS authentication is per-STA and we can disable the | |
275 | * per-BSSID EAPOL authentication. | |
276 | */ | |
277 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
278 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
279 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
280 | return; | |
281 | } | |
282 | #endif /* CONFIG_IBSS_RSN */ | |
283 | ||
0a40ec6a JM |
284 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
285 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
286 | ||
6fc6879b JM |
287 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
288 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
289 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
290 | else | |
291 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
292 | ||
293 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
294 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
295 | eapol_conf.accept_802_1x_keys = 1; | |
296 | eapol_conf.required_keys = 0; | |
297 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
298 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
299 | } | |
300 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
301 | eapol_conf.required_keys |= | |
302 | EAPOL_REQUIRE_KEY_BROADCAST; | |
303 | } | |
304 | ||
c2a04078 | 305 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 306 | eapol_conf.required_keys = 0; |
6fc6879b JM |
307 | } |
308 | if (wpa_s->conf) | |
309 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
310 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
311 | eapol_conf.eap_disabled = |
312 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
313 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
314 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
315 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
316 | #endif /* IEEE8021X_EAPOL */ | |
317 | } | |
318 | ||
319 | ||
320 | /** | |
321 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
322 | * @wpa_s: Pointer to wpa_supplicant data | |
323 | * @ssid: Configuration data for the network | |
324 | * | |
325 | * This function is used to configure WPA state machine and related parameters | |
326 | * to a mode where WPA is not enabled. This is called as part of the | |
327 | * authentication configuration when the selected network does not use WPA. | |
328 | */ | |
329 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
330 | struct wpa_ssid *ssid) | |
331 | { | |
332 | int i; | |
333 | ||
ad08c363 JM |
334 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
335 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
336 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
337 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
338 | else | |
339 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
340 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
341 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
342 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
343 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
344 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
345 | wpa_s->mgmt_group_cipher = 0; | |
346 | ||
347 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
348 | if (ssid->wep_key_len[i] > 5) { | |
349 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
350 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
351 | break; | |
352 | } else if (ssid->wep_key_len[i] > 0) { | |
353 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
354 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
355 | break; | |
356 | } | |
357 | } | |
358 | ||
359 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
360 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
361 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
362 | wpa_s->pairwise_cipher); | |
363 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
364 | #ifdef CONFIG_IEEE80211W | |
365 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
366 | wpa_s->mgmt_group_cipher); | |
367 | #endif /* CONFIG_IEEE80211W */ | |
368 | ||
369 | pmksa_cache_clear_current(wpa_s->wpa); | |
370 | } | |
371 | ||
372 | ||
6bf731e8 CL |
373 | static void free_hw_features(struct wpa_supplicant *wpa_s) |
374 | { | |
375 | int i; | |
376 | if (wpa_s->hw.modes == NULL) | |
377 | return; | |
378 | ||
379 | for (i = 0; i < wpa_s->hw.num_modes; i++) { | |
380 | os_free(wpa_s->hw.modes[i].channels); | |
381 | os_free(wpa_s->hw.modes[i].rates); | |
382 | } | |
383 | ||
384 | os_free(wpa_s->hw.modes); | |
385 | wpa_s->hw.modes = NULL; | |
386 | } | |
387 | ||
388 | ||
6fc6879b JM |
389 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) |
390 | { | |
60b94c98 | 391 | bgscan_deinit(wpa_s); |
6fc6879b JM |
392 | scard_deinit(wpa_s->scard); |
393 | wpa_s->scard = NULL; | |
394 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
395 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
396 | l2_packet_deinit(wpa_s->l2); | |
397 | wpa_s->l2 = NULL; | |
398 | if (wpa_s->l2_br) { | |
399 | l2_packet_deinit(wpa_s->l2_br); | |
400 | wpa_s->l2_br = NULL; | |
401 | } | |
402 | ||
6fc6879b | 403 | if (wpa_s->conf != NULL) { |
8e56d189 JM |
404 | struct wpa_ssid *ssid; |
405 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
406 | wpas_notify_network_removed(wpa_s, ssid); | |
6fc6879b JM |
407 | } |
408 | ||
409 | os_free(wpa_s->confname); | |
410 | wpa_s->confname = NULL; | |
411 | ||
412 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
413 | eapol_sm_deinit(wpa_s->eapol); | |
414 | wpa_s->eapol = NULL; | |
415 | ||
416 | rsn_preauth_deinit(wpa_s->wpa); | |
417 | ||
281ff0aa GP |
418 | #ifdef CONFIG_TDLS |
419 | wpa_tdls_deinit(wpa_s->wpa); | |
420 | #endif /* CONFIG_TDLS */ | |
421 | ||
6fc6879b JM |
422 | pmksa_candidate_free(wpa_s->wpa); |
423 | wpa_sm_deinit(wpa_s->wpa); | |
424 | wpa_s->wpa = NULL; | |
425 | wpa_blacklist_clear(wpa_s); | |
426 | ||
83922c2d | 427 | wpa_bss_deinit(wpa_s); |
6fc6879b JM |
428 | |
429 | wpa_supplicant_cancel_scan(wpa_s); | |
430 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
01a17491 JM |
431 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); |
432 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
433 | eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, | |
434 | wpa_s, NULL); | |
435 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
6fc6879b | 436 | |
116654ce | 437 | wpas_wps_deinit(wpa_s); |
11ef8d35 | 438 | |
1ff73338 JM |
439 | wpabuf_free(wpa_s->pending_eapol_rx); |
440 | wpa_s->pending_eapol_rx = NULL; | |
441 | ||
11ef8d35 JM |
442 | #ifdef CONFIG_IBSS_RSN |
443 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
444 | wpa_s->ibss_rsn = NULL; | |
445 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 | 446 | |
e29853bb | 447 | sme_deinit(wpa_s); |
2d5b792d JM |
448 | |
449 | #ifdef CONFIG_AP | |
450 | wpa_supplicant_ap_deinit(wpa_s); | |
451 | #endif /* CONFIG_AP */ | |
b22128ef JM |
452 | |
453 | #ifdef CONFIG_P2P | |
454 | wpas_p2p_deinit(wpa_s); | |
455 | #endif /* CONFIG_P2P */ | |
f47d639d | 456 | |
24f6497c JM |
457 | #ifdef CONFIG_OFFCHANNEL |
458 | offchannel_deinit(wpa_s); | |
459 | #endif /* CONFIG_OFFCHANNEL */ | |
460 | ||
a4cba8f1 LC |
461 | wpa_supplicant_cancel_sched_scan(wpa_s); |
462 | ||
f47d639d JM |
463 | os_free(wpa_s->next_scan_freqs); |
464 | wpa_s->next_scan_freqs = NULL; | |
04ea7b79 JM |
465 | |
466 | gas_query_deinit(wpa_s->gas); | |
467 | wpa_s->gas = NULL; | |
6bf731e8 CL |
468 | |
469 | free_hw_features(wpa_s); | |
6fc6879b JM |
470 | } |
471 | ||
472 | ||
473 | /** | |
474 | * wpa_clear_keys - Clear keys configured for the driver | |
475 | * @wpa_s: Pointer to wpa_supplicant data | |
476 | * @addr: Previously used BSSID or %NULL if not available | |
477 | * | |
478 | * This function clears the encryption keys that has been previously configured | |
479 | * for the driver. | |
480 | */ | |
481 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
482 | { | |
6fc6879b JM |
483 | if (wpa_s->keys_cleared) { |
484 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
485 | * timing issues with keys being cleared just before new keys | |
486 | * are set or just after association or something similar. This | |
487 | * shows up in group key handshake failing often because of the | |
488 | * client not receiving the first encrypted packets correctly. | |
489 | * Skipping some of the extra key clearing steps seems to help | |
490 | * in completing group key handshake more reliably. */ | |
f049052b BG |
491 | wpa_dbg(wpa_s, MSG_DEBUG, "No keys have been configured - " |
492 | "skip key clearing"); | |
6fc6879b JM |
493 | return; |
494 | } | |
495 | ||
496 | /* MLME-DELETEKEYS.request */ | |
0382097e JM |
497 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 0, 0, NULL, 0, NULL, 0); |
498 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 1, 0, NULL, 0, NULL, 0); | |
499 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 2, 0, NULL, 0, NULL, 0); | |
500 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 | 501 | #ifdef CONFIG_IEEE80211W |
0382097e JM |
502 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 4, 0, NULL, 0, NULL, 0); |
503 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 5, 0, NULL, 0, NULL, 0); | |
0e27f655 | 504 | #endif /* CONFIG_IEEE80211W */ |
6fc6879b JM |
505 | if (addr) { |
506 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
507 | 0); | |
508 | /* MLME-SETPROTECTION.request(None) */ | |
509 | wpa_drv_mlme_setprotection( | |
510 | wpa_s, addr, | |
511 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
512 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
513 | } | |
514 | wpa_s->keys_cleared = 1; | |
515 | } | |
516 | ||
517 | ||
518 | /** | |
519 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
520 | * @state: State (wpa_state; WPA_*) | |
521 | * Returns: The state name as a printable text string | |
522 | */ | |
71934751 | 523 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
6fc6879b JM |
524 | { |
525 | switch (state) { | |
526 | case WPA_DISCONNECTED: | |
527 | return "DISCONNECTED"; | |
528 | case WPA_INACTIVE: | |
529 | return "INACTIVE"; | |
8401a6b0 JM |
530 | case WPA_INTERFACE_DISABLED: |
531 | return "INTERFACE_DISABLED"; | |
6fc6879b JM |
532 | case WPA_SCANNING: |
533 | return "SCANNING"; | |
c2a04078 JM |
534 | case WPA_AUTHENTICATING: |
535 | return "AUTHENTICATING"; | |
6fc6879b JM |
536 | case WPA_ASSOCIATING: |
537 | return "ASSOCIATING"; | |
538 | case WPA_ASSOCIATED: | |
539 | return "ASSOCIATED"; | |
540 | case WPA_4WAY_HANDSHAKE: | |
541 | return "4WAY_HANDSHAKE"; | |
542 | case WPA_GROUP_HANDSHAKE: | |
543 | return "GROUP_HANDSHAKE"; | |
544 | case WPA_COMPLETED: | |
545 | return "COMPLETED"; | |
546 | default: | |
547 | return "UNKNOWN"; | |
548 | } | |
549 | } | |
550 | ||
551 | ||
cfe53c9a PS |
552 | #ifdef CONFIG_BGSCAN |
553 | ||
554 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
555 | { | |
0096c427 JM |
556 | if (wpas_driver_bss_selection(wpa_s)) |
557 | return; | |
cfe53c9a PS |
558 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) |
559 | return; | |
560 | ||
561 | bgscan_deinit(wpa_s); | |
562 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { | |
563 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { | |
564 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
565 | "bgscan"); | |
566 | /* | |
567 | * Live without bgscan; it is only used as a roaming | |
568 | * optimization, so the initial connection is not | |
569 | * affected. | |
570 | */ | |
571 | } else | |
572 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
573 | } else | |
574 | wpa_s->bgscan_ssid = NULL; | |
575 | } | |
576 | ||
577 | ||
578 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
579 | { | |
580 | if (wpa_s->bgscan_ssid != NULL) { | |
581 | bgscan_deinit(wpa_s); | |
582 | wpa_s->bgscan_ssid = NULL; | |
583 | } | |
584 | } | |
585 | ||
586 | #endif /* CONFIG_BGSCAN */ | |
587 | ||
588 | ||
6fc6879b JM |
589 | /** |
590 | * wpa_supplicant_set_state - Set current connection state | |
591 | * @wpa_s: Pointer to wpa_supplicant data | |
592 | * @state: The new connection state | |
593 | * | |
594 | * This function is called whenever the connection state changes, e.g., | |
595 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
596 | */ | |
71934751 JM |
597 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
598 | enum wpa_states state) | |
6fc6879b | 599 | { |
27f43d8d MH |
600 | enum wpa_states old_state = wpa_s->wpa_state; |
601 | ||
f049052b BG |
602 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", |
603 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
604 | wpa_supplicant_state_txt(state)); | |
6fc6879b | 605 | |
cb8564b1 DW |
606 | if (state != WPA_SCANNING) |
607 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
608 | ||
6fc6879b JM |
609 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
610 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
611 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
612 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
613 | MACSTR " completed %s [id=%d id_str=%s]", | |
614 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
615 | "(reauth)" : "(auth)", | |
616 | ssid ? ssid->id : -1, | |
617 | ssid && ssid->id_str ? ssid->id_str : ""); | |
618 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
619 | wpa_s->new_connection = 0; | |
620 | wpa_s->reassociated_connection = 1; | |
621 | wpa_drv_set_operstate(wpa_s, 1); | |
99ac2913 FF |
622 | #ifndef IEEE8021X_EAPOL |
623 | wpa_drv_set_supp_port(wpa_s, 1); | |
624 | #endif /* IEEE8021X_EAPOL */ | |
17a4734d | 625 | wpa_s->after_wps = 0; |
b22128ef JM |
626 | #ifdef CONFIG_P2P |
627 | wpas_p2p_completed(wpa_s); | |
628 | #endif /* CONFIG_P2P */ | |
6fc6879b JM |
629 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
630 | state == WPA_ASSOCIATED) { | |
631 | wpa_s->new_connection = 1; | |
632 | wpa_drv_set_operstate(wpa_s, 0); | |
99ac2913 FF |
633 | #ifndef IEEE8021X_EAPOL |
634 | wpa_drv_set_supp_port(wpa_s, 0); | |
635 | #endif /* IEEE8021X_EAPOL */ | |
6fc6879b JM |
636 | } |
637 | wpa_s->wpa_state = state; | |
27f43d8d | 638 | |
cfe53c9a PS |
639 | #ifdef CONFIG_BGSCAN |
640 | if (state == WPA_COMPLETED) | |
641 | wpa_supplicant_start_bgscan(wpa_s); | |
642 | else | |
643 | wpa_supplicant_stop_bgscan(wpa_s); | |
644 | #endif /* CONFIG_BGSCAN */ | |
645 | ||
5bbf9f10 | 646 | if (wpa_s->wpa_state != old_state) { |
27f43d8d | 647 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
5bbf9f10 PS |
648 | |
649 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
650 | old_state == WPA_COMPLETED) | |
651 | wpas_notify_auth_changed(wpa_s); | |
652 | } | |
6fc6879b JM |
653 | } |
654 | ||
655 | ||
1a1bf008 JM |
656 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
657 | { | |
658 | int pending = 0; | |
659 | #ifdef CONFIG_WPS | |
660 | struct wpa_supplicant *wpa_s = global->ifaces; | |
661 | while (wpa_s) { | |
662 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
663 | pending = 1; | |
664 | wpa_s = wpa_s->next; | |
665 | } | |
666 | #endif /* CONFIG_WPS */ | |
667 | if (pending) | |
668 | return; | |
669 | eloop_terminate(); | |
670 | } | |
671 | ||
672 | ||
0456ea16 | 673 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
6fc6879b | 674 | { |
0456ea16 | 675 | struct wpa_global *global = signal_ctx; |
1a1bf008 | 676 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
677 | } |
678 | ||
679 | ||
b22128ef | 680 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) |
6fc6879b | 681 | { |
71934751 | 682 | enum wpa_states old_state = wpa_s->wpa_state; |
27f43d8d | 683 | |
6fc6879b JM |
684 | wpa_s->pairwise_cipher = 0; |
685 | wpa_s->group_cipher = 0; | |
686 | wpa_s->mgmt_group_cipher = 0; | |
687 | wpa_s->key_mgmt = 0; | |
8401a6b0 JM |
688 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
689 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
27f43d8d MH |
690 | |
691 | if (wpa_s->wpa_state != old_state) | |
692 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
693 | } |
694 | ||
695 | ||
696 | /** | |
697 | * wpa_supplicant_reload_configuration - Reload configuration data | |
698 | * @wpa_s: Pointer to wpa_supplicant data | |
699 | * Returns: 0 on success or -1 if configuration parsing failed | |
700 | * | |
701 | * This function can be used to request that the configuration data is reloaded | |
702 | * (e.g., after configuration file change). This function is reloading | |
703 | * configuration only for one interface, so this may need to be called multiple | |
704 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
705 | * interfaces need reconfiguration. | |
706 | */ | |
707 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
708 | { | |
709 | struct wpa_config *conf; | |
710 | int reconf_ctrl; | |
8bac466b JM |
711 | int old_ap_scan; |
712 | ||
6fc6879b JM |
713 | if (wpa_s->confname == NULL) |
714 | return -1; | |
715 | conf = wpa_config_read(wpa_s->confname); | |
716 | if (conf == NULL) { | |
717 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
718 | "file '%s' - exiting", wpa_s->confname); | |
719 | return -1; | |
720 | } | |
611aea7d | 721 | conf->changed_parameters = (unsigned int) -1; |
6fc6879b JM |
722 | |
723 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
724 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
725 | os_strcmp(conf->ctrl_interface, | |
726 | wpa_s->conf->ctrl_interface) != 0); | |
727 | ||
728 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
729 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
730 | wpa_s->ctrl_iface = NULL; | |
731 | } | |
732 | ||
733 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
7b7ce8aa JM |
734 | if (wpa_s->current_ssid) { |
735 | wpa_supplicant_deauthenticate(wpa_s, | |
736 | WLAN_REASON_DEAUTH_LEAVING); | |
737 | } | |
8bac466b | 738 | |
6fc6879b JM |
739 | /* |
740 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
741 | * pkcs11_engine_path, pkcs11_module_path. | |
742 | */ | |
56586197 | 743 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
744 | /* |
745 | * Clear forced success to clear EAP state for next | |
746 | * authentication. | |
747 | */ | |
748 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
749 | } | |
750 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
751 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
d8a790b9 | 752 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); |
6fc6879b JM |
753 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); |
754 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
755 | |
756 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
757 | wpa_config_free(wpa_s->conf); |
758 | wpa_s->conf = conf; | |
8bac466b JM |
759 | if (old_ap_scan != wpa_s->conf->ap_scan) |
760 | wpas_notify_ap_scan_changed(wpa_s); | |
761 | ||
6fc6879b JM |
762 | if (reconf_ctrl) |
763 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
764 | ||
611aea7d JM |
765 | wpa_supplicant_update_config(wpa_s); |
766 | ||
6fc6879b | 767 | wpa_supplicant_clear_status(wpa_s); |
43a38635 JM |
768 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
769 | wpa_s->reassociate = 1; | |
770 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
771 | } | |
f049052b | 772 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); |
6fc6879b JM |
773 | return 0; |
774 | } | |
775 | ||
776 | ||
0456ea16 | 777 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
6fc6879b | 778 | { |
0456ea16 | 779 | struct wpa_global *global = signal_ctx; |
6fc6879b | 780 | struct wpa_supplicant *wpa_s; |
6fc6879b | 781 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
f049052b BG |
782 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", |
783 | sig); | |
6fc6879b | 784 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { |
1a1bf008 | 785 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
786 | } |
787 | } | |
788 | } | |
789 | ||
790 | ||
508545f3 | 791 | enum wpa_cipher cipher_suite2driver(int cipher) |
6fc6879b JM |
792 | { |
793 | switch (cipher) { | |
794 | case WPA_CIPHER_NONE: | |
795 | return CIPHER_NONE; | |
796 | case WPA_CIPHER_WEP40: | |
797 | return CIPHER_WEP40; | |
798 | case WPA_CIPHER_WEP104: | |
799 | return CIPHER_WEP104; | |
800 | case WPA_CIPHER_CCMP: | |
801 | return CIPHER_CCMP; | |
802 | case WPA_CIPHER_TKIP: | |
803 | default: | |
804 | return CIPHER_TKIP; | |
805 | } | |
806 | } | |
807 | ||
808 | ||
508545f3 | 809 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
6fc6879b JM |
810 | { |
811 | switch (key_mgmt) { | |
812 | case WPA_KEY_MGMT_NONE: | |
813 | return KEY_MGMT_NONE; | |
814 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
815 | return KEY_MGMT_802_1X_NO_WPA; | |
816 | case WPA_KEY_MGMT_IEEE8021X: | |
817 | return KEY_MGMT_802_1X; | |
818 | case WPA_KEY_MGMT_WPA_NONE: | |
819 | return KEY_MGMT_WPA_NONE; | |
820 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
821 | return KEY_MGMT_FT_802_1X; | |
822 | case WPA_KEY_MGMT_FT_PSK: | |
823 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
824 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
825 | return KEY_MGMT_802_1X_SHA256; | |
826 | case WPA_KEY_MGMT_PSK_SHA256: | |
827 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
828 | case WPA_KEY_MGMT_WPS: |
829 | return KEY_MGMT_WPS; | |
6fc6879b JM |
830 | case WPA_KEY_MGMT_PSK: |
831 | default: | |
832 | return KEY_MGMT_PSK; | |
833 | } | |
834 | } | |
835 | ||
836 | ||
837 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
838 | struct wpa_ssid *ssid, | |
839 | struct wpa_ie_data *ie) | |
840 | { | |
841 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
842 | if (ret) { | |
843 | if (ret == -2) { | |
844 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
845 | "from association info"); | |
846 | } | |
847 | return -1; | |
848 | } | |
849 | ||
f049052b BG |
850 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " |
851 | "cipher suites"); | |
6fc6879b JM |
852 | if (!(ie->group_cipher & ssid->group_cipher)) { |
853 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
854 | "cipher 0x%x (mask 0x%x) - reject", | |
855 | ie->group_cipher, ssid->group_cipher); | |
856 | return -1; | |
857 | } | |
858 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
859 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
860 | "cipher 0x%x (mask 0x%x) - reject", | |
861 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
862 | return -1; | |
863 | } | |
864 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
865 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
866 | "management 0x%x (mask 0x%x) - reject", | |
867 | ie->key_mgmt, ssid->key_mgmt); | |
868 | return -1; | |
869 | } | |
870 | ||
871 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 872 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
70f8cc8e | 873 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
6fc6879b JM |
874 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
875 | "that does not support management frame protection - " | |
876 | "reject"); | |
877 | return -1; | |
878 | } | |
879 | #endif /* CONFIG_IEEE80211W */ | |
880 | ||
881 | return 0; | |
882 | } | |
883 | ||
884 | ||
885 | /** | |
886 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
887 | * @wpa_s: Pointer to wpa_supplicant data | |
888 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
889 | * @ssid: Configuration data for the selected network | |
890 | * @wpa_ie: Buffer for the WPA/RSN IE | |
891 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
892 | * used buffer length in case the functions returns success. | |
893 | * Returns: 0 on success or -1 on failure | |
894 | * | |
895 | * This function is used to configure authentication and encryption parameters | |
896 | * based on the network configuration and scan result for the selected BSS (if | |
897 | * available). | |
898 | */ | |
899 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 900 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
6fc6879b JM |
901 | u8 *wpa_ie, size_t *wpa_ie_len) |
902 | { | |
903 | struct wpa_ie_data ie; | |
904 | int sel, proto; | |
905 | const u8 *bss_wpa, *bss_rsn; | |
906 | ||
907 | if (bss) { | |
6fa81a3b JM |
908 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
909 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
6fc6879b JM |
910 | } else |
911 | bss_wpa = bss_rsn = NULL; | |
912 | ||
913 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
914 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
915 | (ie.group_cipher & ssid->group_cipher) && | |
916 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
917 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 918 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); |
6fc6879b JM |
919 | proto = WPA_PROTO_RSN; |
920 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
921 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
922 | (ie.group_cipher & ssid->group_cipher) && | |
923 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
924 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 925 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); |
6fc6879b JM |
926 | proto = WPA_PROTO_WPA; |
927 | } else if (bss) { | |
928 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
929 | return -1; | |
930 | } else { | |
931 | if (ssid->proto & WPA_PROTO_RSN) | |
932 | proto = WPA_PROTO_RSN; | |
933 | else | |
934 | proto = WPA_PROTO_WPA; | |
935 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
936 | os_memset(&ie, 0, sizeof(ie)); | |
937 | ie.group_cipher = ssid->group_cipher; | |
938 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
939 | ie.key_mgmt = ssid->key_mgmt; | |
940 | #ifdef CONFIG_IEEE80211W | |
941 | ie.mgmt_group_cipher = | |
70f8cc8e | 942 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
6fc6879b JM |
943 | WPA_CIPHER_AES_128_CMAC : 0; |
944 | #endif /* CONFIG_IEEE80211W */ | |
f049052b BG |
945 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " |
946 | "based on configuration"); | |
6fc6879b JM |
947 | } else |
948 | proto = ie.proto; | |
949 | } | |
950 | ||
f049052b BG |
951 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " |
952 | "pairwise %d key_mgmt %d proto %d", | |
953 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
6fc6879b JM |
954 | #ifdef CONFIG_IEEE80211W |
955 | if (ssid->ieee80211w) { | |
f049052b BG |
956 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", |
957 | ie.mgmt_group_cipher); | |
6fc6879b JM |
958 | } |
959 | #endif /* CONFIG_IEEE80211W */ | |
960 | ||
64fa840a | 961 | wpa_s->wpa_proto = proto; |
6fc6879b JM |
962 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); |
963 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
964 | !!(ssid->proto & WPA_PROTO_RSN)); | |
965 | ||
966 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
967 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
968 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
969 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
970 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
971 | return -1; | |
972 | } | |
973 | ||
974 | sel = ie.group_cipher & ssid->group_cipher; | |
975 | if (sel & WPA_CIPHER_CCMP) { | |
976 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
f049052b | 977 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); |
6fc6879b JM |
978 | } else if (sel & WPA_CIPHER_TKIP) { |
979 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
f049052b | 980 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); |
6fc6879b JM |
981 | } else if (sel & WPA_CIPHER_WEP104) { |
982 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
f049052b | 983 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); |
6fc6879b JM |
984 | } else if (sel & WPA_CIPHER_WEP40) { |
985 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
f049052b | 986 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); |
6fc6879b | 987 | } else { |
f049052b BG |
988 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " |
989 | "cipher"); | |
6fc6879b JM |
990 | return -1; |
991 | } | |
992 | ||
993 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
994 | if (sel & WPA_CIPHER_CCMP) { | |
995 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
f049052b | 996 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); |
6fc6879b JM |
997 | } else if (sel & WPA_CIPHER_TKIP) { |
998 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
f049052b | 999 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); |
6fc6879b JM |
1000 | } else if (sel & WPA_CIPHER_NONE) { |
1001 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
f049052b | 1002 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); |
6fc6879b | 1003 | } else { |
f049052b BG |
1004 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " |
1005 | "cipher"); | |
6fc6879b JM |
1006 | return -1; |
1007 | } | |
1008 | ||
1009 | sel = ie.key_mgmt & ssid->key_mgmt; | |
1010 | if (0) { | |
1011 | #ifdef CONFIG_IEEE80211R | |
1012 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
1013 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
f049052b | 1014 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); |
6fc6879b JM |
1015 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { |
1016 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
f049052b | 1017 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); |
6fc6879b | 1018 | #endif /* CONFIG_IEEE80211R */ |
56586197 JM |
1019 | #ifdef CONFIG_IEEE80211W |
1020 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
1021 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
f049052b | 1022 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1023 | "WPA: using KEY_MGMT 802.1X with SHA256"); |
1024 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1025 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
f049052b | 1026 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1027 | "WPA: using KEY_MGMT PSK with SHA256"); |
1028 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1029 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
1030 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
f049052b | 1031 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); |
6fc6879b JM |
1032 | } else if (sel & WPA_KEY_MGMT_PSK) { |
1033 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
f049052b | 1034 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); |
6fc6879b JM |
1035 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { |
1036 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
f049052b | 1037 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); |
6fc6879b | 1038 | } else { |
f049052b BG |
1039 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " |
1040 | "authenticated key management type"); | |
6fc6879b JM |
1041 | return -1; |
1042 | } | |
1043 | ||
1044 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1045 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1046 | wpa_s->pairwise_cipher); | |
1047 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1048 | ||
1049 | #ifdef CONFIG_IEEE80211W | |
1050 | sel = ie.mgmt_group_cipher; | |
70f8cc8e | 1051 | if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION || |
0b60b0aa | 1052 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
1053 | sel = 0; |
1054 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1055 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
f049052b | 1056 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " |
6fc6879b JM |
1057 | "AES-128-CMAC"); |
1058 | } else { | |
1059 | wpa_s->mgmt_group_cipher = 0; | |
f049052b | 1060 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); |
6fc6879b JM |
1061 | } |
1062 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1063 | wpa_s->mgmt_group_cipher); | |
e820cf95 | 1064 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w); |
6fc6879b JM |
1065 | #endif /* CONFIG_IEEE80211W */ |
1066 | ||
1067 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
f049052b | 1068 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); |
6fc6879b JM |
1069 | return -1; |
1070 | } | |
1071 | ||
0bf927a0 | 1072 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { |
6fc6879b | 1073 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
7d232e23 ZC |
1074 | #ifndef CONFIG_NO_PBKDF2 |
1075 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && | |
1076 | ssid->passphrase) { | |
1077 | u8 psk[PMK_LEN]; | |
1078 | pbkdf2_sha1(ssid->passphrase, (char *) bss->ssid, | |
1079 | bss->ssid_len, 4096, psk, PMK_LEN); | |
1080 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", | |
1081 | psk, PMK_LEN); | |
1082 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1083 | } | |
1084 | #endif /* CONFIG_NO_PBKDF2 */ | |
1085 | } else | |
6fc6879b JM |
1086 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | ||
1092 | /** | |
1093 | * wpa_supplicant_associate - Request association | |
1094 | * @wpa_s: Pointer to wpa_supplicant data | |
1095 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1096 | * @ssid: Configuration data for the selected network | |
1097 | * | |
1098 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1099 | */ | |
1100 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 1101 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
6fc6879b | 1102 | { |
5f3a6aa0 | 1103 | u8 wpa_ie[200]; |
6fc6879b | 1104 | size_t wpa_ie_len; |
8bac466b | 1105 | int use_crypt, ret, i, bssid_changed; |
abd9fafa | 1106 | int algs = WPA_AUTH_ALG_OPEN; |
71934751 | 1107 | enum wpa_cipher cipher_pairwise, cipher_group; |
6fc6879b JM |
1108 | struct wpa_driver_associate_params params; |
1109 | int wep_keys_set = 0; | |
1110 | struct wpa_driver_capa capa; | |
1111 | int assoc_failed = 0; | |
8bac466b | 1112 | struct wpa_ssid *old_ssid; |
80e8a5ee BG |
1113 | #ifdef CONFIG_HT_OVERRIDES |
1114 | struct ieee80211_ht_capabilities htcaps; | |
1115 | struct ieee80211_ht_capabilities htcaps_mask; | |
1116 | #endif /* CONFIG_HT_OVERRIDES */ | |
6fc6879b | 1117 | |
78177a00 JM |
1118 | #ifdef CONFIG_IBSS_RSN |
1119 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1120 | wpa_s->ibss_rsn = NULL; | |
1121 | #endif /* CONFIG_IBSS_RSN */ | |
1122 | ||
2c5d725c JM |
1123 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || |
1124 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1581b38b JM |
1125 | #ifdef CONFIG_AP |
1126 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
f049052b BG |
1127 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " |
1128 | "mode"); | |
1581b38b JM |
1129 | return; |
1130 | } | |
1131 | wpa_supplicant_create_ap(wpa_s, ssid); | |
8f770587 | 1132 | wpa_s->current_bss = bss; |
1581b38b | 1133 | #else /* CONFIG_AP */ |
f049052b BG |
1134 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " |
1135 | "the build"); | |
1581b38b JM |
1136 | #endif /* CONFIG_AP */ |
1137 | return; | |
1138 | } | |
1139 | ||
52c9e6f3 | 1140 | #ifdef CONFIG_TDLS |
95cb2d88 JM |
1141 | if (bss) |
1142 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), | |
1143 | bss->ie_len); | |
52c9e6f3 JM |
1144 | #endif /* CONFIG_TDLS */ |
1145 | ||
5cc4d64b JM |
1146 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
1147 | ssid->mode == IEEE80211_MODE_INFRA) { | |
c2a04078 JM |
1148 | sme_authenticate(wpa_s, bss, ssid); |
1149 | return; | |
1150 | } | |
1151 | ||
0c80427d | 1152 | os_memset(¶ms, 0, sizeof(params)); |
6fc6879b | 1153 | wpa_s->reassociate = 0; |
22628eca | 1154 | if (bss && !wpas_driver_bss_selection(wpa_s)) { |
6fc6879b | 1155 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1156 | const u8 *ie, *md = NULL; |
6fc6879b | 1157 | #endif /* CONFIG_IEEE80211R */ |
6fc6879b JM |
1158 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
1159 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
6fa81a3b | 1160 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
8bac466b | 1161 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1162 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1163 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1164 | if (bssid_changed) |
1165 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b | 1166 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1167 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
6fc6879b JM |
1168 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
1169 | md = ie + 2; | |
e7846b68 | 1170 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
91a05482 JM |
1171 | if (md) { |
1172 | /* Prepare for the next transition */ | |
76b7981d | 1173 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
91a05482 | 1174 | } |
6fc6879b | 1175 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1176 | #ifdef CONFIG_WPS |
1177 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1178 | wpa_s->conf->ap_scan == 2 && | |
1179 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1180 | /* Use ap_scan==1 style network selection to find the network | |
1181 | */ | |
1182 | wpa_s->scan_req = 2; | |
1183 | wpa_s->reassociate = 1; | |
1184 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1185 | return; | |
1186 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1187 | } else { |
1188 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1189 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1190 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1191 | } | |
a4cba8f1 | 1192 | wpa_supplicant_cancel_sched_scan(wpa_s); |
6fc6879b JM |
1193 | wpa_supplicant_cancel_scan(wpa_s); |
1194 | ||
1195 | /* Starting new association, so clear the possibly used WPA IE from the | |
1196 | * previous association. */ | |
1197 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1198 | ||
1199 | #ifdef IEEE8021X_EAPOL | |
1200 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1201 | if (ssid->leap) { | |
1202 | if (ssid->non_leap == 0) | |
abd9fafa | 1203 | algs = WPA_AUTH_ALG_LEAP; |
6fc6879b | 1204 | else |
abd9fafa | 1205 | algs |= WPA_AUTH_ALG_LEAP; |
6fc6879b JM |
1206 | } |
1207 | } | |
1208 | #endif /* IEEE8021X_EAPOL */ | |
f049052b | 1209 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); |
6fc6879b | 1210 | if (ssid->auth_alg) { |
abd9fafa | 1211 | algs = ssid->auth_alg; |
f049052b BG |
1212 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " |
1213 | "0x%x", algs); | |
6fc6879b | 1214 | } |
6fc6879b | 1215 | |
6fa81a3b JM |
1216 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
1217 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
0bf927a0 | 1218 | wpa_key_mgmt_wpa(ssid->key_mgmt)) { |
6fc6879b JM |
1219 | int try_opportunistic; |
1220 | try_opportunistic = ssid->proactive_key_caching && | |
1221 | (ssid->proto & WPA_PROTO_RSN); | |
1222 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1223 | wpa_s->current_ssid, | |
1224 | try_opportunistic) == 0) | |
1225 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1226 | wpa_ie_len = sizeof(wpa_ie); | |
1227 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1228 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1229 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1230 | "key management and encryption suites"); | |
6fc6879b JM |
1231 | return; |
1232 | } | |
0bf927a0 | 1233 | } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { |
6fc6879b JM |
1234 | wpa_ie_len = sizeof(wpa_ie); |
1235 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1236 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1237 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1238 | "key management and encryption suites (no " | |
1239 | "scan results)"); | |
6fc6879b JM |
1240 | return; |
1241 | } | |
ad08c363 JM |
1242 | #ifdef CONFIG_WPS |
1243 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1244 | struct wpabuf *wps_ie; |
1245 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1246 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1247 | wpa_ie_len = wpabuf_len(wps_ie); | |
1248 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1249 | } else |
1250 | wpa_ie_len = 0; | |
ad08c363 JM |
1251 | wpabuf_free(wps_ie); |
1252 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
0c80427d JM |
1253 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
1254 | params.wps = WPS_MODE_PRIVACY; | |
1255 | else | |
1256 | params.wps = WPS_MODE_OPEN; | |
cf546f1a | 1257 | wpa_s->wpa_proto = 0; |
ad08c363 | 1258 | #endif /* CONFIG_WPS */ |
6fc6879b JM |
1259 | } else { |
1260 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1261 | wpa_ie_len = 0; | |
cf546f1a | 1262 | wpa_s->wpa_proto = 0; |
6fc6879b JM |
1263 | } |
1264 | ||
5f3a6aa0 JM |
1265 | #ifdef CONFIG_P2P |
1266 | if (wpa_s->global->p2p) { | |
1267 | u8 *pos; | |
1268 | size_t len; | |
1269 | int res; | |
1270 | int p2p_group; | |
1271 | p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE; | |
1272 | pos = wpa_ie + wpa_ie_len; | |
1273 | len = sizeof(wpa_ie) - wpa_ie_len; | |
4c08c0bd | 1274 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group); |
5f3a6aa0 JM |
1275 | if (res >= 0) |
1276 | wpa_ie_len += res; | |
1277 | } | |
72044390 JM |
1278 | |
1279 | wpa_s->cross_connect_disallowed = 0; | |
1280 | if (bss) { | |
1281 | struct wpabuf *p2p; | |
1282 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1283 | if (p2p) { | |
1284 | wpa_s->cross_connect_disallowed = | |
1285 | p2p_get_cross_connect_disallowed(p2p); | |
1286 | wpabuf_free(p2p); | |
f049052b BG |
1287 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " |
1288 | "connection", | |
1289 | wpa_s->cross_connect_disallowed ? | |
1290 | "disallows" : "allows"); | |
72044390 JM |
1291 | } |
1292 | } | |
5f3a6aa0 JM |
1293 | #endif /* CONFIG_P2P */ |
1294 | ||
92cbcf91 JM |
1295 | #ifdef CONFIG_INTERWORKING |
1296 | if (wpa_s->conf->interworking) { | |
1297 | u8 *pos = wpa_ie; | |
1298 | if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) | |
1299 | pos += 2 + pos[1]; | |
1300 | os_memmove(pos + 6, pos, wpa_ie_len - (pos - wpa_ie)); | |
1301 | wpa_ie_len += 6; | |
1302 | *pos++ = WLAN_EID_EXT_CAPAB; | |
1303 | *pos++ = 4; | |
1304 | *pos++ = 0x00; | |
1305 | *pos++ = 0x00; | |
1306 | *pos++ = 0x00; | |
1307 | *pos++ = 0x80; /* Bit 31 - Interworking */ | |
1308 | } | |
1309 | #endif /* CONFIG_INTERWORKING */ | |
1310 | ||
6fc6879b JM |
1311 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); |
1312 | use_crypt = 1; | |
1313 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1314 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1315 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1316 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1317 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1318 | use_crypt = 0; | |
1319 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1320 | use_crypt = 1; | |
1321 | wep_keys_set = 1; | |
1322 | } | |
1323 | } | |
ad08c363 JM |
1324 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1325 | use_crypt = 0; | |
6fc6879b JM |
1326 | |
1327 | #ifdef IEEE8021X_EAPOL | |
1328 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1329 | if ((ssid->eapol_flags & | |
1330 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1331 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1332 | !wep_keys_set) { | |
1333 | use_crypt = 0; | |
1334 | } else { | |
1335 | /* Assume that dynamic WEP-104 keys will be used and | |
1336 | * set cipher suites in order for drivers to expect | |
1337 | * encryption. */ | |
1338 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1339 | } | |
1340 | } | |
1341 | #endif /* IEEE8021X_EAPOL */ | |
1342 | ||
1343 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1344 | /* Set the key before (and later after) association */ | |
1345 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1346 | } | |
1347 | ||
6fc6879b | 1348 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
6fc6879b | 1349 | if (bss) { |
6fa81a3b JM |
1350 | params.ssid = bss->ssid; |
1351 | params.ssid_len = bss->ssid_len; | |
22628eca JM |
1352 | if (!wpas_driver_bss_selection(wpa_s)) { |
1353 | params.bssid = bss->bssid; | |
1354 | params.freq = bss->freq; | |
1355 | } | |
6fc6879b JM |
1356 | } else { |
1357 | params.ssid = ssid->ssid; | |
1358 | params.ssid_len = ssid->ssid_len; | |
1359 | } | |
9e2af29f NC |
1360 | |
1361 | if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set && | |
1362 | wpa_s->conf->ap_scan == 2) { | |
1363 | params.bssid = ssid->bssid; | |
1364 | params.fixed_bssid = 1; | |
1365 | } | |
1366 | ||
d7dcba70 JM |
1367 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
1368 | params.freq == 0) | |
6fc6879b JM |
1369 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
1370 | params.wpa_ie = wpa_ie; | |
1371 | params.wpa_ie_len = wpa_ie_len; | |
1372 | params.pairwise_suite = cipher_pairwise; | |
1373 | params.group_suite = cipher_group; | |
1374 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
64fa840a | 1375 | params.wpa_proto = wpa_s->wpa_proto; |
6fc6879b JM |
1376 | params.auth_alg = algs; |
1377 | params.mode = ssid->mode; | |
1378 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1379 | if (ssid->wep_key_len[i]) | |
1380 | params.wep_key[i] = ssid->wep_key[i]; | |
1381 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1382 | } | |
1383 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1384 | ||
c2a04078 | 1385 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1386 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1387 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1388 | params.passphrase = ssid->passphrase; | |
1389 | if (ssid->psk_set) | |
1390 | params.psk = ssid->psk; | |
1391 | } | |
1392 | ||
36b15723 JM |
1393 | params.drop_unencrypted = use_crypt; |
1394 | ||
6fc6879b | 1395 | #ifdef CONFIG_IEEE80211W |
70f8cc8e JM |
1396 | params.mgmt_frame_protection = ssid->ieee80211w; |
1397 | if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) { | |
6fa81a3b | 1398 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
97d3497e JM |
1399 | struct wpa_ie_data ie; |
1400 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1401 | ie.capabilities & | |
1402 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
f049052b BG |
1403 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " |
1404 | "MFP: require MFP"); | |
97d3497e JM |
1405 | params.mgmt_frame_protection = |
1406 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1407 | } | |
1408 | } | |
6fc6879b JM |
1409 | #endif /* CONFIG_IEEE80211W */ |
1410 | ||
ffad8858 | 1411 | params.p2p = ssid->p2p_group; |
6e3f4b89 | 1412 | |
eea2fd9e JM |
1413 | if (wpa_s->parent->set_sta_uapsd) |
1414 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1415 | else | |
1416 | params.uapsd = -1; | |
1417 | ||
80e8a5ee BG |
1418 | #ifdef CONFIG_HT_OVERRIDES |
1419 | os_memset(&htcaps, 0, sizeof(htcaps)); | |
1420 | os_memset(&htcaps_mask, 0, sizeof(htcaps_mask)); | |
1421 | params.htcaps = (u8 *) &htcaps; | |
1422 | params.htcaps_mask = (u8 *) &htcaps_mask; | |
1423 | wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms); | |
1424 | #endif /* CONFIG_HT_OVERRIDES */ | |
1425 | ||
17fbb751 | 1426 | ret = wpa_drv_associate(wpa_s, ¶ms); |
6fc6879b JM |
1427 | if (ret < 0) { |
1428 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1429 | "failed"); | |
871f4dd0 JM |
1430 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { |
1431 | /* | |
1432 | * The driver is known to mean what is saying, so we | |
1433 | * can stop right here; the association will not | |
1434 | * succeed. | |
1435 | */ | |
1436 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
1437 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1438 | return; | |
1439 | } | |
6fc6879b JM |
1440 | /* try to continue anyway; new association will be tried again |
1441 | * after timeout */ | |
1442 | assoc_failed = 1; | |
1443 | } | |
1444 | ||
1445 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1446 | /* Set the key after the association just in case association | |
1447 | * cleared the previously configured key. */ | |
1448 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1449 | /* No need to timeout authentication since there is no key | |
1450 | * management. */ | |
1451 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1452 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b | 1453 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 1454 | } else if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
1455 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
1456 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
1457 | /* | |
1458 | * RSN IBSS authentication is per-STA and we can disable the | |
1459 | * per-BSSID authentication. | |
1460 | */ | |
1461 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
53895c3b | 1462 | #endif /* CONFIG_IBSS_RSN */ |
6fc6879b JM |
1463 | } else { |
1464 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1465 | int timeout = 60; |
1466 | ||
1467 | if (assoc_failed) { | |
1468 | /* give IBSS a bit more time */ | |
d7dcba70 | 1469 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
1d3c75b3 DW |
1470 | } else if (wpa_s->conf->ap_scan == 1) { |
1471 | /* give IBSS a bit more time */ | |
d7dcba70 | 1472 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
1d3c75b3 | 1473 | } |
6fc6879b JM |
1474 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1475 | } | |
1476 | ||
1477 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1478 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1479 | /* Set static WEP keys again */ | |
1480 | wpa_set_wep_keys(wpa_s, ssid); | |
1481 | } | |
1482 | ||
1483 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1484 | /* | |
1485 | * Do not allow EAP session resumption between different | |
1486 | * network configurations. | |
1487 | */ | |
1488 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1489 | } | |
8bac466b | 1490 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 1491 | wpa_s->current_ssid = ssid; |
8f770587 | 1492 | wpa_s->current_bss = bss; |
6fc6879b JM |
1493 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
1494 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1495 | if (old_ssid != wpa_s->current_ssid) |
1496 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1497 | } |
1498 | ||
1499 | ||
09f58c09 JM |
1500 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
1501 | const u8 *addr) | |
1502 | { | |
1503 | struct wpa_ssid *old_ssid; | |
1504 | ||
1505 | wpa_clear_keys(wpa_s, addr); | |
1506 | wpa_supplicant_mark_disassoc(wpa_s); | |
1507 | old_ssid = wpa_s->current_ssid; | |
1508 | wpa_s->current_ssid = NULL; | |
1509 | wpa_s->current_bss = NULL; | |
1510 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1511 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1512 | if (old_ssid != wpa_s->current_ssid) | |
1513 | wpas_notify_network_changed(wpa_s); | |
1514 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1515 | } | |
1516 | ||
1517 | ||
6fc6879b JM |
1518 | /** |
1519 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1520 | * @wpa_s: Pointer to wpa_supplicant data | |
1521 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1522 | * | |
1523 | * This function is used to request %wpa_supplicant to disassociate with the | |
1524 | * current AP. | |
1525 | */ | |
1526 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1527 | int reason_code) | |
1528 | { | |
1529 | u8 *addr = NULL; | |
8bac466b | 1530 | |
a8e16edc | 1531 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
17fbb751 | 1532 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); |
6fc6879b JM |
1533 | addr = wpa_s->bssid; |
1534 | } | |
09f58c09 JM |
1535 | |
1536 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1537 | } |
1538 | ||
1539 | ||
1540 | /** | |
1541 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1542 | * @wpa_s: Pointer to wpa_supplicant data | |
1543 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1544 | * | |
073ab58f | 1545 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1546 | * current AP. |
1547 | */ | |
1548 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1549 | int reason_code) | |
1550 | { | |
1551 | u8 *addr = NULL; | |
8bac466b | 1552 | |
a8e16edc | 1553 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
17fbb751 | 1554 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, reason_code); |
6fc6879b JM |
1555 | addr = wpa_s->bssid; |
1556 | } | |
09f58c09 JM |
1557 | |
1558 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1559 | } |
1560 | ||
1561 | ||
86b89452 WS |
1562 | /** |
1563 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1564 | * @wpa_s: wpa_supplicant structure for a network interface | |
1565 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1566 | * | |
1567 | * Enables the specified network or all networks if no network specified. | |
1568 | */ | |
1569 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1570 | struct wpa_ssid *ssid) | |
1571 | { | |
1572 | struct wpa_ssid *other_ssid; | |
1573 | int was_disabled; | |
1574 | ||
1575 | if (ssid == NULL) { | |
4dac0245 JM |
1576 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1577 | other_ssid = other_ssid->next) { | |
1578 | if (other_ssid->disabled == 2) | |
1579 | continue; /* do not change persistent P2P group | |
1580 | * data */ | |
86b89452 WS |
1581 | if (other_ssid == wpa_s->current_ssid && |
1582 | other_ssid->disabled) | |
1583 | wpa_s->reassociate = 1; | |
1584 | ||
1585 | was_disabled = other_ssid->disabled; | |
1586 | ||
1587 | other_ssid->disabled = 0; | |
1588 | ||
1589 | if (was_disabled != other_ssid->disabled) | |
1590 | wpas_notify_network_enabled_changed( | |
1591 | wpa_s, other_ssid); | |
86b89452 WS |
1592 | } |
1593 | if (wpa_s->reassociate) | |
1594 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
4dac0245 | 1595 | } else if (ssid->disabled && ssid->disabled != 2) { |
adc8d4a7 KM |
1596 | if (wpa_s->current_ssid == NULL) { |
1597 | /* | |
1598 | * Try to reassociate since there is no current | |
1599 | * configuration and a new network was made available. | |
1600 | */ | |
1601 | wpa_s->reassociate = 1; | |
1602 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1603 | } | |
86b89452 WS |
1604 | |
1605 | was_disabled = ssid->disabled; | |
1606 | ||
1607 | ssid->disabled = 0; | |
1608 | ||
1609 | if (was_disabled != ssid->disabled) | |
1610 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1611 | } | |
1612 | } | |
1613 | ||
1614 | ||
1615 | /** | |
1616 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1617 | * @wpa_s: wpa_supplicant structure for a network interface | |
1618 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1619 | * | |
1620 | * Disables the specified network or all networks if no network specified. | |
1621 | */ | |
1622 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1623 | struct wpa_ssid *ssid) | |
1624 | { | |
1625 | struct wpa_ssid *other_ssid; | |
1626 | int was_disabled; | |
1627 | ||
1628 | if (ssid == NULL) { | |
4dac0245 JM |
1629 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1630 | other_ssid = other_ssid->next) { | |
86b89452 | 1631 | was_disabled = other_ssid->disabled; |
4dac0245 JM |
1632 | if (was_disabled == 2) |
1633 | continue; /* do not change persistent P2P group | |
1634 | * data */ | |
86b89452 WS |
1635 | |
1636 | other_ssid->disabled = 1; | |
1637 | ||
1638 | if (was_disabled != other_ssid->disabled) | |
1639 | wpas_notify_network_enabled_changed( | |
1640 | wpa_s, other_ssid); | |
86b89452 WS |
1641 | } |
1642 | if (wpa_s->current_ssid) | |
1643 | wpa_supplicant_disassociate( | |
1644 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
4dac0245 | 1645 | } else if (ssid->disabled != 2) { |
86b89452 WS |
1646 | if (ssid == wpa_s->current_ssid) |
1647 | wpa_supplicant_disassociate( | |
1648 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1649 | ||
1650 | was_disabled = ssid->disabled; | |
1651 | ||
1652 | ssid->disabled = 1; | |
1653 | ||
1654 | if (was_disabled != ssid->disabled) | |
1655 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1656 | } | |
1657 | } | |
1658 | ||
1659 | ||
1660 | /** | |
1661 | * wpa_supplicant_select_network - Attempt association with a network | |
1662 | * @wpa_s: wpa_supplicant structure for a network interface | |
1663 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1664 | */ | |
1665 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1666 | struct wpa_ssid *ssid) | |
1667 | { | |
1668 | ||
1669 | struct wpa_ssid *other_ssid; | |
d93dfbd5 | 1670 | int disconnected = 0; |
86b89452 | 1671 | |
d93dfbd5 | 1672 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) { |
86b89452 WS |
1673 | wpa_supplicant_disassociate( |
1674 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
d93dfbd5 JM |
1675 | disconnected = 1; |
1676 | } | |
86b89452 WS |
1677 | |
1678 | /* | |
1679 | * Mark all other networks disabled or mark all networks enabled if no | |
1680 | * network specified. | |
1681 | */ | |
4dac0245 JM |
1682 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1683 | other_ssid = other_ssid->next) { | |
86b89452 | 1684 | int was_disabled = other_ssid->disabled; |
4dac0245 JM |
1685 | if (was_disabled == 2) |
1686 | continue; /* do not change persistent P2P group data */ | |
86b89452 WS |
1687 | |
1688 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1689 | ||
1690 | if (was_disabled != other_ssid->disabled) | |
1691 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
86b89452 | 1692 | } |
2a6f78fb JJ |
1693 | |
1694 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { | |
1695 | /* We are already associated with the selected network */ | |
1696 | wpa_printf(MSG_DEBUG, "Already associated with the " | |
1697 | "selected network - do nothing"); | |
1698 | return; | |
1699 | } | |
1700 | ||
96efeeb6 JM |
1701 | if (ssid) |
1702 | wpa_s->current_ssid = ssid; | |
7dcdcfd6 | 1703 | wpa_s->connect_without_scan = NULL; |
86b89452 WS |
1704 | wpa_s->disconnected = 0; |
1705 | wpa_s->reassociate = 1; | |
d93dfbd5 | 1706 | wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0); |
86b89452 | 1707 | |
a1641d26 JM |
1708 | if (ssid) |
1709 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1710 | } |
1711 | ||
1712 | ||
1713 | /** | |
1714 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1715 | * @wpa_s: wpa_supplicant structure for a network interface | |
1716 | * @ap_scan: AP scan mode | |
1717 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1718 | * | |
1719 | */ | |
1720 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1721 | { | |
1722 | ||
1723 | int old_ap_scan; | |
1724 | ||
1725 | if (ap_scan < 0 || ap_scan > 2) | |
1726 | return -1; | |
1727 | ||
48f8e036 DS |
1728 | #ifdef ANDROID |
1729 | if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && | |
1730 | wpa_s->wpa_state >= WPA_ASSOCIATING && | |
1731 | wpa_s->wpa_state < WPA_COMPLETED) { | |
1732 | wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " | |
1733 | "associating", wpa_s->conf->ap_scan, ap_scan); | |
1734 | return 0; | |
1735 | } | |
1736 | #endif /* ANDROID */ | |
1737 | ||
86b89452 WS |
1738 | old_ap_scan = wpa_s->conf->ap_scan; |
1739 | wpa_s->conf->ap_scan = ap_scan; | |
1740 | ||
1741 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1742 | wpas_notify_ap_scan_changed(wpa_s); | |
1743 | ||
1744 | return 0; | |
1745 | } | |
1746 | ||
1747 | ||
78633c37 SL |
1748 | /** |
1749 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
1750 | * @wpa_s: wpa_supplicant structure for a network interface | |
1751 | * @expire_age: Expiration age in seconds | |
1752 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
1753 | * | |
1754 | */ | |
1755 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
1756 | unsigned int bss_expire_age) | |
1757 | { | |
1758 | if (bss_expire_age < 10) { | |
1759 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
1760 | bss_expire_age); | |
1761 | return -1; | |
1762 | } | |
1763 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
1764 | bss_expire_age); | |
1765 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
1766 | ||
1767 | return 0; | |
1768 | } | |
1769 | ||
1770 | ||
1771 | /** | |
1772 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
1773 | * @wpa_s: wpa_supplicant structure for a network interface | |
1774 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
1775 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
1776 | * | |
1777 | */ | |
1778 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
1779 | unsigned int bss_expire_count) | |
1780 | { | |
1781 | if (bss_expire_count < 1) { | |
1782 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
1783 | bss_expire_count); | |
1784 | return -1; | |
1785 | } | |
1786 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
1787 | bss_expire_count); | |
1788 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
1789 | ||
1790 | return 0; | |
1791 | } | |
1792 | ||
1793 | ||
86b89452 WS |
1794 | /** |
1795 | * wpa_supplicant_set_debug_params - Set global debug params | |
1796 | * @global: wpa_global structure | |
1797 | * @debug_level: debug level | |
1798 | * @debug_timestamp: determines if show timestamp in debug data | |
1799 | * @debug_show_keys: determines if show keys in debug data | |
1800 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1801 | */ | |
1802 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1803 | int debug_timestamp, int debug_show_keys) | |
1804 | { | |
1805 | ||
1806 | int old_level, old_timestamp, old_show_keys; | |
1807 | ||
1808 | /* check for allowed debuglevels */ | |
14dc0011 PS |
1809 | if (debug_level != MSG_EXCESSIVE && |
1810 | debug_level != MSG_MSGDUMP && | |
86b89452 WS |
1811 | debug_level != MSG_DEBUG && |
1812 | debug_level != MSG_INFO && | |
1813 | debug_level != MSG_WARNING && | |
1814 | debug_level != MSG_ERROR) | |
1815 | return -1; | |
1816 | ||
1817 | old_level = wpa_debug_level; | |
1818 | old_timestamp = wpa_debug_timestamp; | |
1819 | old_show_keys = wpa_debug_show_keys; | |
1820 | ||
1821 | wpa_debug_level = debug_level; | |
1822 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1823 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1824 | ||
db9133ac WS |
1825 | if (wpa_debug_level != old_level) |
1826 | wpas_notify_debug_level_changed(global); | |
1827 | if (wpa_debug_timestamp != old_timestamp) | |
1828 | wpas_notify_debug_timestamp_changed(global); | |
1829 | if (wpa_debug_show_keys != old_show_keys) | |
1830 | wpas_notify_debug_show_keys_changed(global); | |
86b89452 WS |
1831 | |
1832 | return 0; | |
1833 | } | |
1834 | ||
1835 | ||
6fc6879b JM |
1836 | /** |
1837 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1838 | * @wpa_s: Pointer to wpa_supplicant data | |
1839 | * Returns: A pointer to the current network structure or %NULL on failure | |
1840 | */ | |
1841 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1842 | { | |
1843 | struct wpa_ssid *entry; | |
1844 | u8 ssid[MAX_SSID_LEN]; | |
1845 | int res; | |
1846 | size_t ssid_len; | |
1847 | u8 bssid[ETH_ALEN]; | |
1848 | int wired; | |
1849 | ||
17fbb751 JM |
1850 | res = wpa_drv_get_ssid(wpa_s, ssid); |
1851 | if (res < 0) { | |
1852 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " | |
1853 | "driver"); | |
1854 | return NULL; | |
6fc6879b | 1855 | } |
17fbb751 | 1856 | ssid_len = res; |
6fc6879b | 1857 | |
17fbb751 | 1858 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { |
f049052b BG |
1859 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " |
1860 | "driver"); | |
6fc6879b JM |
1861 | return NULL; |
1862 | } | |
1863 | ||
c2a04078 JM |
1864 | wired = wpa_s->conf->ap_scan == 0 && |
1865 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1866 | |
1867 | entry = wpa_s->conf->ssid; | |
1868 | while (entry) { | |
1869 | if (!entry->disabled && | |
1870 | ((ssid_len == entry->ssid_len && | |
1871 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1872 | (!entry->bssid_set || | |
1873 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1874 | return entry; | |
24c23d1b JM |
1875 | #ifdef CONFIG_WPS |
1876 | if (!entry->disabled && | |
1877 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1878 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1879 | (!entry->bssid_set || | |
1880 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1881 | return entry; | |
1882 | #endif /* CONFIG_WPS */ | |
7d232e23 ZC |
1883 | |
1884 | if (!entry->disabled && entry->bssid_set && | |
1885 | entry->ssid_len == 0 && | |
1886 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) | |
1887 | return entry; | |
1888 | ||
6fc6879b JM |
1889 | entry = entry->next; |
1890 | } | |
1891 | ||
1892 | return NULL; | |
1893 | } | |
1894 | ||
1895 | ||
7756114f JM |
1896 | static int select_driver(struct wpa_supplicant *wpa_s, int i) |
1897 | { | |
1898 | struct wpa_global *global = wpa_s->global; | |
1899 | ||
1900 | if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { | |
1901 | global->drv_priv[i] = wpa_drivers[i]->global_init(); | |
1902 | if (global->drv_priv[i] == NULL) { | |
1903 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
1904 | "'%s'", wpa_drivers[i]->name); | |
1905 | return -1; | |
1906 | } | |
1907 | } | |
1908 | ||
1909 | wpa_s->driver = wpa_drivers[i]; | |
1910 | wpa_s->global_drv_priv = global->drv_priv[i]; | |
1911 | ||
1912 | return 0; | |
1913 | } | |
1914 | ||
1915 | ||
6fc6879b JM |
1916 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, |
1917 | const char *name) | |
1918 | { | |
1919 | int i; | |
362f781e | 1920 | size_t len; |
74b1c84a | 1921 | const char *pos, *driver = name; |
6fc6879b JM |
1922 | |
1923 | if (wpa_s == NULL) | |
1924 | return -1; | |
1925 | ||
c5121837 | 1926 | if (wpa_drivers[0] == NULL) { |
f049052b BG |
1927 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " |
1928 | "wpa_supplicant"); | |
6fc6879b JM |
1929 | return -1; |
1930 | } | |
1931 | ||
1932 | if (name == NULL) { | |
1933 | /* default to first driver in the list */ | |
7756114f | 1934 | return select_driver(wpa_s, 0); |
6fc6879b JM |
1935 | } |
1936 | ||
74b1c84a SO |
1937 | do { |
1938 | pos = os_strchr(driver, ','); | |
1939 | if (pos) | |
1940 | len = pos - driver; | |
1941 | else | |
1942 | len = os_strlen(driver); | |
1943 | ||
1944 | for (i = 0; wpa_drivers[i]; i++) { | |
1945 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1946 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
7756114f JM |
1947 | 0) |
1948 | return select_driver(wpa_s, i); | |
6fc6879b | 1949 | } |
74b1c84a SO |
1950 | |
1951 | driver = pos + 1; | |
1952 | } while (pos); | |
6fc6879b | 1953 | |
f049052b | 1954 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); |
6fc6879b JM |
1955 | return -1; |
1956 | } | |
1957 | ||
1958 | ||
a8e0505b JM |
1959 | /** |
1960 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
1961 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
1962 | * with struct wpa_driver_ops::init() | |
1963 | * @src_addr: Source address of the EAPOL frame | |
1964 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
1965 | * @len: Length of the EAPOL data | |
1966 | * | |
1967 | * This function is called for each received EAPOL frame. Most driver | |
1968 | * interfaces rely on more generic OS mechanism for receiving frames through | |
1969 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
1970 | * take care of received EAPOL frames and deliver them to the core supplicant | |
1971 | * code by calling this function. | |
1972 | */ | |
6fc6879b JM |
1973 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
1974 | const u8 *buf, size_t len) | |
1975 | { | |
1976 | struct wpa_supplicant *wpa_s = ctx; | |
1977 | ||
f049052b | 1978 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); |
6fc6879b JM |
1979 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); |
1980 | ||
1ff73338 JM |
1981 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1982 | /* | |
1983 | * There is possible race condition between receiving the | |
1984 | * association event and the EAPOL frame since they are coming | |
1985 | * through different paths from the driver. In order to avoid | |
1986 | * issues in trying to process the EAPOL frame before receiving | |
1987 | * association information, lets queue it for processing until | |
1988 | * the association event is received. | |
1989 | */ | |
f049052b BG |
1990 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " |
1991 | "of received EAPOL frame"); | |
1ff73338 JM |
1992 | wpabuf_free(wpa_s->pending_eapol_rx); |
1993 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1994 | if (wpa_s->pending_eapol_rx) { | |
1995 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1996 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1997 | ETH_ALEN); | |
1998 | } | |
1999 | return; | |
2000 | } | |
2001 | ||
db149ac9 JM |
2002 | #ifdef CONFIG_AP |
2003 | if (wpa_s->ap_iface) { | |
2004 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
2005 | return; | |
2006 | } | |
2007 | #endif /* CONFIG_AP */ | |
2008 | ||
6fc6879b | 2009 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
f049052b BG |
2010 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " |
2011 | "no key management is configured"); | |
6fc6879b JM |
2012 | return; |
2013 | } | |
2014 | ||
2015 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 2016 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 2017 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
9c972abb JM |
2018 | wpa_s->wpa_state != WPA_COMPLETED) && |
2019 | (wpa_s->current_ssid == NULL || | |
2020 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
2021 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
2022 | wpa_supplicant_req_auth_timeout( | |
2023 | wpa_s, | |
56586197 | 2024 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
2025 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
2026 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
2027 | 70 : 10, 0); |
2028 | } | |
2029 | wpa_s->eapol_received++; | |
2030 | ||
2031 | if (wpa_s->countermeasures) { | |
f049052b BG |
2032 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " |
2033 | "EAPOL packet"); | |
6fc6879b JM |
2034 | return; |
2035 | } | |
2036 | ||
8be18440 JM |
2037 | #ifdef CONFIG_IBSS_RSN |
2038 | if (wpa_s->current_ssid && | |
d7dcba70 | 2039 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
8be18440 JM |
2040 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
2041 | return; | |
2042 | } | |
2043 | #endif /* CONFIG_IBSS_RSN */ | |
2044 | ||
6fc6879b JM |
2045 | /* Source address of the incoming EAPOL frame could be compared to the |
2046 | * current BSSID. However, it is possible that a centralized | |
2047 | * Authenticator could be using another MAC address than the BSSID of | |
2048 | * an AP, so just allow any address to be used for now. The replies are | |
2049 | * still sent to the current BSSID (if available), though. */ | |
2050 | ||
2051 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 2052 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
2053 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
2054 | return; | |
2055 | wpa_drv_poll(wpa_s); | |
c2a04078 | 2056 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 2057 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 2058 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
2059 | /* |
2060 | * Set portValid = TRUE here since we are going to skip 4-way | |
2061 | * handshake processing which would normally set portValid. We | |
2062 | * need this to allow the EAPOL state machines to be completed | |
2063 | * without going through EAPOL-Key handshake. | |
2064 | */ | |
2065 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | ||
bfba8deb | 2070 | int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) |
6fc6879b | 2071 | { |
6fc6879b JM |
2072 | if (wpa_s->driver->send_eapol) { |
2073 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2074 | if (addr) | |
2075 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
fdadd5fe JM |
2076 | } else if (!(wpa_s->drv_flags & |
2077 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
bfba8deb | 2078 | l2_packet_deinit(wpa_s->l2); |
6fc6879b JM |
2079 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, |
2080 | wpa_drv_get_mac_addr(wpa_s), | |
2081 | ETH_P_EAPOL, | |
2082 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2083 | if (wpa_s->l2 == NULL) | |
2084 | return -1; | |
fdadd5fe JM |
2085 | } else { |
2086 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2087 | if (addr) | |
2088 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
6fc6879b JM |
2089 | } |
2090 | ||
2091 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
f049052b | 2092 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); |
6fc6879b JM |
2093 | return -1; |
2094 | } | |
2095 | ||
f049052b BG |
2096 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, |
2097 | MAC2STR(wpa_s->own_addr)); | |
f98eb880 | 2098 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
6fc6879b | 2099 | |
bfba8deb JM |
2100 | return 0; |
2101 | } | |
2102 | ||
2103 | ||
2104 | /** | |
2105 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
2106 | * @wpa_s: Pointer to wpa_supplicant data | |
2107 | * Returns: 0 on success, -1 on failure | |
2108 | * | |
2109 | * This function is called to initialize driver interface parameters. | |
2110 | * wpa_drv_init() must have been called before this function to initialize the | |
2111 | * driver interface. | |
2112 | */ | |
2113 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
2114 | { | |
2115 | static int interface_count = 0; | |
2116 | ||
2117 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) | |
2118 | return -1; | |
2119 | ||
6fc6879b | 2120 | if (wpa_s->bridge_ifname[0]) { |
f049052b BG |
2121 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " |
2122 | "interface '%s'", wpa_s->bridge_ifname); | |
6fc6879b JM |
2123 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, |
2124 | wpa_s->own_addr, | |
2125 | ETH_P_EAPOL, | |
2126 | wpa_supplicant_rx_eapol, wpa_s, | |
2127 | 0); | |
2128 | if (wpa_s->l2_br == NULL) { | |
f049052b BG |
2129 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " |
2130 | "connection for the bridge interface '%s'", | |
2131 | wpa_s->bridge_ifname); | |
6fc6879b JM |
2132 | return -1; |
2133 | } | |
2134 | } | |
2135 | ||
6fc6879b JM |
2136 | wpa_clear_keys(wpa_s, NULL); |
2137 | ||
2138 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2139 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2140 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2141 | ||
f049052b | 2142 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
6fc6879b JM |
2143 | wpa_drv_flush_pmkid(wpa_s); |
2144 | ||
ba2a573c | 2145 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
b3aa456b ES |
2146 | wpa_s->prev_scan_wildcard = 0; |
2147 | ||
74e259ec | 2148 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
6a90053c LC |
2149 | if (wpa_supplicant_delayed_sched_scan(wpa_s, interface_count, |
2150 | 100000)) | |
a4cba8f1 LC |
2151 | wpa_supplicant_req_scan(wpa_s, interface_count, |
2152 | 100000); | |
74e259ec JM |
2153 | interface_count++; |
2154 | } else | |
2155 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
6fc6879b JM |
2156 | |
2157 | return 0; | |
2158 | } | |
2159 | ||
2160 | ||
2161 | static int wpa_supplicant_daemon(const char *pid_file) | |
2162 | { | |
2163 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2164 | return os_daemonize(pid_file); | |
2165 | } | |
2166 | ||
2167 | ||
2168 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2169 | { | |
2170 | struct wpa_supplicant *wpa_s; | |
2171 | ||
2172 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2173 | if (wpa_s == NULL) | |
2174 | return NULL; | |
2175 | wpa_s->scan_req = 1; | |
67b9bd08 | 2176 | wpa_s->scan_interval = 5; |
c302f207 | 2177 | wpa_s->new_connection = 1; |
b22128ef | 2178 | wpa_s->parent = wpa_s; |
cbdf3507 | 2179 | wpa_s->sched_scanning = 0; |
6fc6879b JM |
2180 | |
2181 | return wpa_s; | |
2182 | } | |
2183 | ||
2184 | ||
80e8a5ee BG |
2185 | #ifdef CONFIG_HT_OVERRIDES |
2186 | ||
2187 | static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s, | |
2188 | struct ieee80211_ht_capabilities *htcaps, | |
2189 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2190 | const char *ht_mcs) | |
2191 | { | |
2192 | /* parse ht_mcs into hex array */ | |
2193 | int i; | |
2194 | const char *tmp = ht_mcs; | |
2195 | char *end = NULL; | |
2196 | ||
2197 | /* If ht_mcs is null, do not set anything */ | |
2198 | if (!ht_mcs) | |
2199 | return 0; | |
2200 | ||
2201 | /* This is what we are setting in the kernel */ | |
2202 | os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN); | |
2203 | ||
2204 | wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs); | |
2205 | ||
2206 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { | |
2207 | errno = 0; | |
2208 | long v = strtol(tmp, &end, 16); | |
2209 | if (errno == 0) { | |
2210 | wpa_msg(wpa_s, MSG_DEBUG, | |
2211 | "htcap value[%i]: %ld end: %p tmp: %p", | |
2212 | i, v, end, tmp); | |
2213 | if (end == tmp) | |
2214 | break; | |
2215 | ||
2216 | htcaps->supported_mcs_set[i] = v; | |
2217 | tmp = end; | |
2218 | } else { | |
2219 | wpa_msg(wpa_s, MSG_ERROR, | |
2220 | "Failed to parse ht-mcs: %s, error: %s\n", | |
2221 | ht_mcs, strerror(errno)); | |
2222 | return -1; | |
2223 | } | |
2224 | } | |
2225 | ||
2226 | /* | |
2227 | * If we were able to parse any values, then set mask for the MCS set. | |
2228 | */ | |
2229 | if (i) { | |
2230 | os_memset(&htcaps_mask->supported_mcs_set, 0xff, | |
2231 | IEEE80211_HT_MCS_MASK_LEN - 1); | |
2232 | /* skip the 3 reserved bits */ | |
2233 | htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] = | |
2234 | 0x1f; | |
2235 | } | |
2236 | ||
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | ||
2241 | static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s, | |
2242 | struct ieee80211_ht_capabilities *htcaps, | |
2243 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2244 | int disabled) | |
2245 | { | |
2246 | u16 msk; | |
2247 | ||
2248 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled); | |
2249 | ||
2250 | if (disabled == -1) | |
2251 | return 0; | |
2252 | ||
2253 | msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE); | |
2254 | htcaps_mask->ht_capabilities_info |= msk; | |
2255 | if (disabled) | |
2256 | htcaps->ht_capabilities_info &= msk; | |
2257 | else | |
2258 | htcaps->ht_capabilities_info |= msk; | |
2259 | ||
2260 | return 0; | |
2261 | } | |
2262 | ||
2263 | ||
2264 | static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s, | |
2265 | struct ieee80211_ht_capabilities *htcaps, | |
2266 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2267 | int factor) | |
2268 | { | |
2269 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor); | |
2270 | ||
2271 | if (factor == -1) | |
2272 | return 0; | |
2273 | ||
2274 | if (factor < 0 || factor > 3) { | |
2275 | wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. " | |
2276 | "Must be 0-3 or -1", factor); | |
2277 | return -EINVAL; | |
2278 | } | |
2279 | ||
2280 | htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */ | |
2281 | htcaps->a_mpdu_params &= ~0x3; | |
2282 | htcaps->a_mpdu_params |= factor & 0x3; | |
2283 | ||
2284 | return 0; | |
2285 | } | |
2286 | ||
2287 | ||
2288 | static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s, | |
2289 | struct ieee80211_ht_capabilities *htcaps, | |
2290 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2291 | int density) | |
2292 | { | |
2293 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density); | |
2294 | ||
2295 | if (density == -1) | |
2296 | return 0; | |
2297 | ||
2298 | if (density < 0 || density > 7) { | |
2299 | wpa_msg(wpa_s, MSG_ERROR, | |
2300 | "ampdu_density: %d out of range. Must be 0-7 or -1.", | |
2301 | density); | |
2302 | return -EINVAL; | |
2303 | } | |
2304 | ||
2305 | htcaps_mask->a_mpdu_params |= 0x1C; | |
2306 | htcaps->a_mpdu_params &= ~(0x1C); | |
2307 | htcaps->a_mpdu_params |= (density << 2) & 0x1C; | |
2308 | ||
2309 | return 0; | |
2310 | } | |
2311 | ||
2312 | ||
2313 | static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s, | |
2314 | struct ieee80211_ht_capabilities *htcaps, | |
2315 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2316 | int disabled) | |
2317 | { | |
2318 | /* Masking these out disables HT40 */ | |
2319 | u16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET | | |
2320 | HT_CAP_INFO_SHORT_GI40MHZ); | |
2321 | ||
2322 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled); | |
2323 | ||
2324 | if (disabled) | |
2325 | htcaps->ht_capabilities_info &= ~msk; | |
2326 | else | |
2327 | htcaps->ht_capabilities_info |= msk; | |
2328 | ||
2329 | htcaps_mask->ht_capabilities_info |= msk; | |
2330 | ||
2331 | return 0; | |
2332 | } | |
2333 | ||
2334 | ||
2335 | void wpa_supplicant_apply_ht_overrides( | |
2336 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
2337 | struct wpa_driver_associate_params *params) | |
2338 | { | |
2339 | struct ieee80211_ht_capabilities *htcaps; | |
2340 | struct ieee80211_ht_capabilities *htcaps_mask; | |
2341 | ||
2342 | if (!ssid) | |
2343 | return; | |
2344 | ||
2345 | params->disable_ht = ssid->disable_ht; | |
2346 | if (!params->htcaps || !params->htcaps_mask) | |
2347 | return; | |
2348 | ||
2349 | htcaps = (struct ieee80211_ht_capabilities *) params->htcaps; | |
2350 | htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask; | |
2351 | wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs); | |
2352 | wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask, | |
2353 | ssid->disable_max_amsdu); | |
2354 | wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor); | |
2355 | wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density); | |
2356 | wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40); | |
2357 | } | |
2358 | ||
2359 | #endif /* CONFIG_HT_OVERRIDES */ | |
2360 | ||
2361 | ||
6fc6879b JM |
2362 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, |
2363 | struct wpa_interface *iface) | |
2364 | { | |
362f781e JM |
2365 | const char *ifname, *driver; |
2366 | struct wpa_driver_capa capa; | |
2367 | ||
6fc6879b JM |
2368 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
2369 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
2370 | iface->confname ? iface->confname : "N/A", | |
2371 | iface->driver ? iface->driver : "default", | |
2372 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
2373 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
2374 | ||
6fc6879b JM |
2375 | if (iface->confname) { |
2376 | #ifdef CONFIG_BACKEND_FILE | |
2377 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
2378 | if (wpa_s->confname == NULL) { | |
2379 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
2380 | "for configuration file '%s'.", | |
2381 | iface->confname); | |
2382 | return -1; | |
2383 | } | |
2384 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
2385 | iface->confname, wpa_s->confname); | |
2386 | #else /* CONFIG_BACKEND_FILE */ | |
2387 | wpa_s->confname = os_strdup(iface->confname); | |
2388 | #endif /* CONFIG_BACKEND_FILE */ | |
2389 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
2390 | if (wpa_s->conf == NULL) { | |
2391 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
2392 | "configuration '%s'.", wpa_s->confname); | |
2393 | return -1; | |
2394 | } | |
2395 | ||
2396 | /* | |
2397 | * Override ctrl_interface and driver_param if set on command | |
2398 | * line. | |
2399 | */ | |
2400 | if (iface->ctrl_interface) { | |
2401 | os_free(wpa_s->conf->ctrl_interface); | |
2402 | wpa_s->conf->ctrl_interface = | |
2403 | os_strdup(iface->ctrl_interface); | |
2404 | } | |
2405 | ||
2406 | if (iface->driver_param) { | |
2407 | os_free(wpa_s->conf->driver_param); | |
2408 | wpa_s->conf->driver_param = | |
2409 | os_strdup(iface->driver_param); | |
2410 | } | |
2411 | } else | |
2412 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
2413 | iface->driver_param); | |
2414 | ||
2415 | if (wpa_s->conf == NULL) { | |
2416 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
2417 | return -1; | |
2418 | } | |
2419 | ||
2420 | if (iface->ifname == NULL) { | |
2421 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
2422 | return -1; | |
2423 | } | |
2424 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
2425 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
2426 | iface->ifname); | |
2427 | return -1; | |
2428 | } | |
2429 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
2430 | ||
2431 | if (iface->bridge_ifname) { | |
2432 | if (os_strlen(iface->bridge_ifname) >= | |
2433 | sizeof(wpa_s->bridge_ifname)) { | |
2434 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
2435 | "name '%s'.", iface->bridge_ifname); | |
2436 | return -1; | |
2437 | } | |
2438 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
2439 | sizeof(wpa_s->bridge_ifname)); | |
2440 | } | |
2441 | ||
6fc6879b JM |
2442 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2443 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2444 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2445 | ||
2446 | /* Initialize driver interface and register driver event handler before | |
2447 | * L2 receive handler so that association events are processed before | |
2448 | * EAPOL-Key packets if both become available for the same select() | |
2449 | * call. */ | |
362f781e JM |
2450 | driver = iface->driver; |
2451 | next_driver: | |
2452 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2453 | return -1; | |
2454 | ||
6fc6879b JM |
2455 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2456 | if (wpa_s->drv_priv == NULL) { | |
362f781e | 2457 | const char *pos; |
a5b9337f | 2458 | pos = driver ? os_strchr(driver, ',') : NULL; |
362f781e | 2459 | if (pos) { |
f049052b BG |
2460 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
2461 | "driver interface - try next driver wrapper"); | |
362f781e JM |
2462 | driver = pos + 1; |
2463 | goto next_driver; | |
2464 | } | |
f049052b BG |
2465 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " |
2466 | "interface"); | |
6fc6879b JM |
2467 | return -1; |
2468 | } | |
2469 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
f049052b BG |
2470 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " |
2471 | "driver_param '%s'", wpa_s->conf->driver_param); | |
6fc6879b JM |
2472 | return -1; |
2473 | } | |
2474 | ||
2475 | ifname = wpa_drv_get_ifname(wpa_s); | |
2476 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
f049052b BG |
2477 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " |
2478 | "interface name with '%s'", ifname); | |
6fc6879b JM |
2479 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); |
2480 | } | |
2481 | ||
2482 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2483 | return -1; | |
2484 | ||
2485 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2486 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2487 | NULL); | |
2488 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2489 | ||
2490 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2491 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2492 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
f049052b BG |
2493 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2494 | "dot11RSNAConfigPMKLifetime"); | |
6fc6879b JM |
2495 | return -1; |
2496 | } | |
2497 | ||
2498 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2499 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2500 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
f049052b | 2501 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
6fc6879b JM |
2502 | "dot11RSNAConfigPMKReauthThreshold"); |
2503 | return -1; | |
2504 | } | |
2505 | ||
2506 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2507 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2508 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
f049052b BG |
2509 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2510 | "dot11RSNAConfigSATimeout"); | |
6fc6879b JM |
2511 | return -1; |
2512 | } | |
2513 | ||
6bf731e8 CL |
2514 | wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, |
2515 | &wpa_s->hw.num_modes, | |
2516 | &wpa_s->hw.flags); | |
2517 | ||
814782b9 | 2518 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
c58ab8f2 | 2519 | wpa_s->drv_capa_known = 1; |
814782b9 | 2520 | wpa_s->drv_flags = capa.flags; |
4f73d88a | 2521 | wpa_s->probe_resp_offloads = capa.probe_resp_offloads; |
814782b9 | 2522 | wpa_s->max_scan_ssids = capa.max_scan_ssids; |
cbdf3507 LC |
2523 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; |
2524 | wpa_s->sched_scan_supported = capa.sched_scan_supported; | |
b59e6f26 | 2525 | wpa_s->max_match_sets = capa.max_match_sets; |
814782b9 | 2526 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; |
c4ea4c5c | 2527 | wpa_s->max_stations = capa.max_stations; |
814782b9 JM |
2528 | } |
2529 | if (wpa_s->max_remain_on_chan == 0) | |
2530 | wpa_s->max_remain_on_chan = 1000; | |
2531 | ||
6fc6879b JM |
2532 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
2533 | return -1; | |
2534 | ||
281ff0aa GP |
2535 | #ifdef CONFIG_TDLS |
2536 | if (wpa_tdls_init(wpa_s->wpa)) | |
2537 | return -1; | |
2538 | #endif /* CONFIG_TDLS */ | |
2539 | ||
315ce40a JM |
2540 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2541 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
f049052b | 2542 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); |
6d158490 LR |
2543 | return -1; |
2544 | } | |
2545 | ||
116654ce JM |
2546 | if (wpas_wps_init(wpa_s)) |
2547 | return -1; | |
2548 | ||
6fc6879b JM |
2549 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2550 | return -1; | |
2551 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2552 | ||
2553 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2554 | if (wpa_s->ctrl_iface == NULL) { | |
2555 | wpa_printf(MSG_ERROR, | |
2556 | "Failed to initialize control interface '%s'.\n" | |
2557 | "You may have another wpa_supplicant process " | |
2558 | "already running or the file was\n" | |
2559 | "left by an unclean termination of wpa_supplicant " | |
2560 | "in which case you will need\n" | |
2561 | "to manually remove this file before starting " | |
2562 | "wpa_supplicant again.\n", | |
2563 | wpa_s->conf->ctrl_interface); | |
2564 | return -1; | |
2565 | } | |
2566 | ||
04ea7b79 JM |
2567 | wpa_s->gas = gas_query_init(wpa_s); |
2568 | if (wpa_s->gas == NULL) { | |
2569 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); | |
2570 | return -1; | |
2571 | } | |
2572 | ||
b22128ef JM |
2573 | #ifdef CONFIG_P2P |
2574 | if (wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
f049052b | 2575 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); |
b22128ef JM |
2576 | return -1; |
2577 | } | |
2578 | #endif /* CONFIG_P2P */ | |
2579 | ||
83922c2d JM |
2580 | if (wpa_bss_init(wpa_s) < 0) |
2581 | return -1; | |
83922c2d | 2582 | |
6fc6879b JM |
2583 | return 0; |
2584 | } | |
2585 | ||
2586 | ||
2ee055b3 | 2587 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
df509539 | 2588 | int notify, int terminate) |
6fc6879b JM |
2589 | { |
2590 | if (wpa_s->drv_priv) { | |
2591 | wpa_supplicant_deauthenticate(wpa_s, | |
2592 | WLAN_REASON_DEAUTH_LEAVING); | |
2593 | ||
6fc6879b JM |
2594 | wpa_drv_set_countermeasures(wpa_s, 0); |
2595 | wpa_clear_keys(wpa_s, NULL); | |
2596 | } | |
2597 | ||
8e56d189 JM |
2598 | wpa_supplicant_cleanup(wpa_s); |
2599 | ||
6fc6879b JM |
2600 | if (wpa_s->drv_priv) |
2601 | wpa_drv_deinit(wpa_s); | |
2523ff6e DS |
2602 | |
2603 | if (notify) | |
2604 | wpas_notify_iface_removed(wpa_s); | |
f0811516 DS |
2605 | |
2606 | if (terminate) | |
2607 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING); | |
2608 | ||
2609 | if (wpa_s->ctrl_iface) { | |
2610 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
2611 | wpa_s->ctrl_iface = NULL; | |
2612 | } | |
2613 | ||
2614 | if (wpa_s->conf != NULL) { | |
2615 | wpa_config_free(wpa_s->conf); | |
2616 | wpa_s->conf = NULL; | |
2617 | } | |
6fc6879b JM |
2618 | } |
2619 | ||
2620 | ||
2621 | /** | |
2622 | * wpa_supplicant_add_iface - Add a new network interface | |
2623 | * @global: Pointer to global data from wpa_supplicant_init() | |
2624 | * @iface: Interface configuration options | |
2625 | * Returns: Pointer to the created interface or %NULL on failure | |
2626 | * | |
2627 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2628 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2629 | * main event loop has been started. In addition, new interfaces can be added | |
2630 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2631 | * e.g., when a hotplug network adapter is inserted. | |
2632 | */ | |
2633 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2634 | struct wpa_interface *iface) | |
2635 | { | |
2636 | struct wpa_supplicant *wpa_s; | |
d27df100 | 2637 | struct wpa_interface t_iface; |
8e56d189 | 2638 | struct wpa_ssid *ssid; |
6fc6879b JM |
2639 | |
2640 | if (global == NULL || iface == NULL) | |
2641 | return NULL; | |
2642 | ||
2643 | wpa_s = wpa_supplicant_alloc(); | |
2644 | if (wpa_s == NULL) | |
2645 | return NULL; | |
2646 | ||
d8222ae3 JM |
2647 | wpa_s->global = global; |
2648 | ||
d27df100 JM |
2649 | t_iface = *iface; |
2650 | if (global->params.override_driver) { | |
2651 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
2652 | "('%s' -> '%s')", | |
2653 | iface->driver, global->params.override_driver); | |
2654 | t_iface.driver = global->params.override_driver; | |
2655 | } | |
2656 | if (global->params.override_ctrl_interface) { | |
2657 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
2658 | "ctrl_interface ('%s' -> '%s')", | |
2659 | iface->ctrl_interface, | |
2660 | global->params.override_ctrl_interface); | |
2661 | t_iface.ctrl_interface = | |
2662 | global->params.override_ctrl_interface; | |
2663 | } | |
2664 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
2665 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2666 | iface->ifname); | |
df509539 | 2667 | wpa_supplicant_deinit_iface(wpa_s, 0, 0); |
6fc6879b JM |
2668 | os_free(wpa_s); |
2669 | return NULL; | |
2670 | } | |
2671 | ||
dc461de4 WS |
2672 | /* Notify the control interfaces about new iface */ |
2673 | if (wpas_notify_iface_added(wpa_s)) { | |
df509539 | 2674 | wpa_supplicant_deinit_iface(wpa_s, 1, 0); |
6fc6879b JM |
2675 | os_free(wpa_s); |
2676 | return NULL; | |
2677 | } | |
1bd3f426 | 2678 | |
8e56d189 JM |
2679 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
2680 | wpas_notify_network_added(wpa_s, ssid); | |
2681 | ||
6fc6879b JM |
2682 | wpa_s->next = global->ifaces; |
2683 | global->ifaces = wpa_s; | |
2684 | ||
f049052b | 2685 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); |
6fc6879b JM |
2686 | |
2687 | return wpa_s; | |
2688 | } | |
2689 | ||
2690 | ||
2691 | /** | |
2692 | * wpa_supplicant_remove_iface - Remove a network interface | |
2693 | * @global: Pointer to global data from wpa_supplicant_init() | |
2694 | * @wpa_s: Pointer to the network interface to be removed | |
2695 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2696 | * | |
2697 | * This function can be used to dynamically remove network interfaces from | |
2698 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2699 | * addition, this function is used to remove all remaining interfaces when | |
2700 | * %wpa_supplicant is terminated. | |
2701 | */ | |
2702 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
df509539 DS |
2703 | struct wpa_supplicant *wpa_s, |
2704 | int terminate) | |
6fc6879b JM |
2705 | { |
2706 | struct wpa_supplicant *prev; | |
2707 | ||
2708 | /* Remove interface from the global list of interfaces */ | |
2709 | prev = global->ifaces; | |
2710 | if (prev == wpa_s) { | |
2711 | global->ifaces = wpa_s->next; | |
2712 | } else { | |
2713 | while (prev && prev->next != wpa_s) | |
2714 | prev = prev->next; | |
2715 | if (prev == NULL) | |
2716 | return -1; | |
2717 | prev->next = wpa_s->next; | |
2718 | } | |
2719 | ||
f049052b | 2720 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); |
6fc6879b | 2721 | |
b22128ef JM |
2722 | if (global->p2p_group_formation == wpa_s) |
2723 | global->p2p_group_formation = NULL; | |
df509539 | 2724 | wpa_supplicant_deinit_iface(wpa_s, 1, terminate); |
6fc6879b JM |
2725 | os_free(wpa_s); |
2726 | ||
2727 | return 0; | |
2728 | } | |
2729 | ||
2730 | ||
cf83fb0b PS |
2731 | /** |
2732 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
2733 | * @wpa_s: Pointer to the network interface | |
2734 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
2735 | */ | |
2736 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
2737 | { | |
2738 | const char *eapol_method; | |
2739 | ||
2740 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
2741 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
2742 | return "NO-EAP"; | |
2743 | } | |
2744 | ||
2745 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
2746 | if (eapol_method == NULL) | |
2747 | return "UNKNOWN-EAP"; | |
2748 | ||
2749 | return eapol_method; | |
2750 | } | |
2751 | ||
2752 | ||
6fc6879b JM |
2753 | /** |
2754 | * wpa_supplicant_get_iface - Get a new network interface | |
2755 | * @global: Pointer to global data from wpa_supplicant_init() | |
2756 | * @ifname: Interface name | |
2757 | * Returns: Pointer to the interface or %NULL if not found | |
2758 | */ | |
2759 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2760 | const char *ifname) | |
2761 | { | |
2762 | struct wpa_supplicant *wpa_s; | |
2763 | ||
2764 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2765 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2766 | return wpa_s; | |
2767 | } | |
2768 | return NULL; | |
2769 | } | |
2770 | ||
2771 | ||
50b16da1 | 2772 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae BG |
2773 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) |
2774 | { | |
2775 | struct wpa_supplicant *wpa_s = ctx; | |
2776 | if (wpa_s == NULL) | |
2777 | return NULL; | |
2778 | return wpa_s->ifname; | |
2779 | } | |
50b16da1 | 2780 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae BG |
2781 | |
2782 | ||
6fc6879b JM |
2783 | /** |
2784 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2785 | * @params: Parameters for %wpa_supplicant | |
2786 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2787 | * | |
2788 | * This function is used to initialize %wpa_supplicant. After successful | |
2789 | * initialization, the returned data pointer can be used to add and remove | |
2790 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2791 | */ | |
2792 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2793 | { | |
2794 | struct wpa_global *global; | |
ac305589 | 2795 | int ret, i; |
6fc6879b JM |
2796 | |
2797 | if (params == NULL) | |
2798 | return NULL; | |
2799 | ||
39e7d718 JM |
2800 | #ifdef CONFIG_DRIVER_NDIS |
2801 | { | |
2802 | void driver_ndis_init_ops(void); | |
2803 | driver_ndis_init_ops(); | |
2804 | } | |
2805 | #endif /* CONFIG_DRIVER_NDIS */ | |
2806 | ||
50b16da1 | 2807 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae | 2808 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); |
50b16da1 | 2809 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae | 2810 | |
6fc6879b | 2811 | wpa_debug_open_file(params->wpa_debug_file_path); |
daa70d49 SL |
2812 | if (params->wpa_debug_syslog) |
2813 | wpa_debug_open_syslog(); | |
6fc6879b | 2814 | |
12760815 | 2815 | ret = eap_register_methods(); |
6fc6879b JM |
2816 | if (ret) { |
2817 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2818 | if (ret == -2) | |
2819 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2820 | "the same EAP type."); | |
2821 | return NULL; | |
2822 | } | |
2823 | ||
2824 | global = os_zalloc(sizeof(*global)); | |
2825 | if (global == NULL) | |
2826 | return NULL; | |
b22128ef JM |
2827 | dl_list_init(&global->p2p_srv_bonjour); |
2828 | dl_list_init(&global->p2p_srv_upnp); | |
6fc6879b JM |
2829 | global->params.daemonize = params->daemonize; |
2830 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2831 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2832 | if (params->pid_file) | |
2833 | global->params.pid_file = os_strdup(params->pid_file); | |
2834 | if (params->ctrl_interface) | |
2835 | global->params.ctrl_interface = | |
2836 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
2837 | if (params->override_driver) |
2838 | global->params.override_driver = | |
2839 | os_strdup(params->override_driver); | |
2840 | if (params->override_ctrl_interface) | |
2841 | global->params.override_ctrl_interface = | |
2842 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
2843 | wpa_debug_level = global->params.wpa_debug_level = |
2844 | params->wpa_debug_level; | |
2845 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2846 | params->wpa_debug_show_keys; | |
2847 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2848 | params->wpa_debug_timestamp; | |
2849 | ||
f19858f5 JM |
2850 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); |
2851 | ||
0456ea16 | 2852 | if (eloop_init()) { |
6fc6879b JM |
2853 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
2854 | wpa_supplicant_deinit(global); | |
2855 | return NULL; | |
2856 | } | |
2857 | ||
38e24575 | 2858 | random_init(params->entropy_file); |
d47fa330 | 2859 | |
6fc6879b JM |
2860 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); |
2861 | if (global->ctrl_iface == NULL) { | |
2862 | wpa_supplicant_deinit(global); | |
2863 | return NULL; | |
2864 | } | |
2865 | ||
dc461de4 WS |
2866 | if (wpas_notify_supplicant_initialized(global)) { |
2867 | wpa_supplicant_deinit(global); | |
2868 | return NULL; | |
6fc6879b JM |
2869 | } |
2870 | ||
c5121837 | 2871 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2872 | global->drv_count++; |
2873 | if (global->drv_count == 0) { | |
2874 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2875 | wpa_supplicant_deinit(global); | |
2876 | return NULL; | |
2877 | } | |
2878 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2879 | if (global->drv_priv == NULL) { | |
2880 | wpa_supplicant_deinit(global); | |
2881 | return NULL; | |
2882 | } | |
ac305589 | 2883 | |
6fc6879b JM |
2884 | return global; |
2885 | } | |
2886 | ||
2887 | ||
2888 | /** | |
2889 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2890 | * @global: Pointer to global data from wpa_supplicant_init() | |
2891 | * Returns: 0 after successful event loop run, -1 on failure | |
2892 | * | |
2893 | * This function starts the main event loop and continues running as long as | |
2894 | * there are any remaining events. In most cases, this function is running as | |
2895 | * long as the %wpa_supplicant process in still in use. | |
2896 | */ | |
2897 | int wpa_supplicant_run(struct wpa_global *global) | |
2898 | { | |
2899 | struct wpa_supplicant *wpa_s; | |
2900 | ||
2901 | if (global->params.daemonize && | |
2902 | wpa_supplicant_daemon(global->params.pid_file)) | |
2903 | return -1; | |
2904 | ||
2905 | if (global->params.wait_for_monitor) { | |
2906 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2907 | if (wpa_s->ctrl_iface) | |
2908 | wpa_supplicant_ctrl_iface_wait( | |
2909 | wpa_s->ctrl_iface); | |
2910 | } | |
2911 | ||
0456ea16 JM |
2912 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
2913 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
6fc6879b JM |
2914 | |
2915 | eloop_run(); | |
2916 | ||
2917 | return 0; | |
2918 | } | |
2919 | ||
2920 | ||
2921 | /** | |
2922 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2923 | * @global: Pointer to global data from wpa_supplicant_init() | |
2924 | * | |
2925 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2926 | * allocated resources. Remaining network interfaces will also be removed. | |
2927 | */ | |
2928 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2929 | { | |
ac305589 JM |
2930 | int i; |
2931 | ||
6fc6879b JM |
2932 | if (global == NULL) |
2933 | return; | |
2934 | ||
b22128ef JM |
2935 | #ifdef CONFIG_P2P |
2936 | wpas_p2p_deinit_global(global); | |
2937 | #endif /* CONFIG_P2P */ | |
2938 | ||
6fc6879b | 2939 | while (global->ifaces) |
df509539 | 2940 | wpa_supplicant_remove_iface(global, global->ifaces, 1); |
6fc6879b JM |
2941 | |
2942 | if (global->ctrl_iface) | |
2943 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
2944 | |
2945 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
2946 | |
2947 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2948 | #ifdef CONFIG_AP |
2949 | eap_server_unregister_methods(); | |
2950 | #endif /* CONFIG_AP */ | |
6fc6879b | 2951 | |
c5121837 | 2952 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2953 | if (!global->drv_priv[i]) |
2954 | continue; | |
c5121837 | 2955 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2956 | } |
2957 | os_free(global->drv_priv); | |
2958 | ||
d47fa330 JM |
2959 | random_deinit(); |
2960 | ||
6fc6879b JM |
2961 | eloop_destroy(); |
2962 | ||
2963 | if (global->params.pid_file) { | |
2964 | os_daemonize_terminate(global->params.pid_file); | |
2965 | os_free(global->params.pid_file); | |
2966 | } | |
2967 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
2968 | os_free(global->params.override_driver); |
2969 | os_free(global->params.override_ctrl_interface); | |
6fc6879b JM |
2970 | |
2971 | os_free(global); | |
daa70d49 | 2972 | wpa_debug_close_syslog(); |
6fc6879b JM |
2973 | wpa_debug_close_file(); |
2974 | } | |
611aea7d JM |
2975 | |
2976 | ||
2977 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
2978 | { | |
849b5dc7 JM |
2979 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && |
2980 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { | |
2981 | char country[3]; | |
2982 | country[0] = wpa_s->conf->country[0]; | |
2983 | country[1] = wpa_s->conf->country[1]; | |
2984 | country[2] = '\0'; | |
2985 | if (wpa_drv_set_country(wpa_s, country) < 0) { | |
2986 | wpa_printf(MSG_ERROR, "Failed to set country code " | |
2987 | "'%s'", country); | |
2988 | } | |
2989 | } | |
2990 | ||
611aea7d JM |
2991 | #ifdef CONFIG_WPS |
2992 | wpas_wps_update_config(wpa_s); | |
2993 | #endif /* CONFIG_WPS */ | |
2994 | ||
b22128ef JM |
2995 | #ifdef CONFIG_P2P |
2996 | wpas_p2p_update_config(wpa_s); | |
2997 | #endif /* CONFIG_P2P */ | |
2998 | ||
611aea7d JM |
2999 | wpa_s->conf->changed_parameters = 0; |
3000 | } | |
2f9c6aa6 JM |
3001 | |
3002 | ||
0fb337c1 JM |
3003 | static void add_freq(int *freqs, int *num_freqs, int freq) |
3004 | { | |
3005 | int i; | |
3006 | ||
3007 | for (i = 0; i < *num_freqs; i++) { | |
3008 | if (freqs[i] == freq) | |
3009 | return; | |
3010 | } | |
3011 | ||
3012 | freqs[*num_freqs] = freq; | |
3013 | (*num_freqs)++; | |
3014 | } | |
3015 | ||
3016 | ||
3017 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
3018 | { | |
3019 | struct wpa_bss *bss, *cbss; | |
3020 | const int max_freqs = 10; | |
3021 | int *freqs; | |
3022 | int num_freqs = 0; | |
3023 | ||
3024 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
3025 | if (freqs == NULL) | |
3026 | return NULL; | |
3027 | ||
3028 | cbss = wpa_s->current_bss; | |
3029 | ||
3030 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
3031 | if (bss == cbss) | |
3032 | continue; | |
3033 | if (bss->ssid_len == cbss->ssid_len && | |
3034 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
3035 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
3036 | add_freq(freqs, &num_freqs, bss->freq); | |
3037 | if (num_freqs == max_freqs) | |
3038 | break; | |
3039 | } | |
3040 | } | |
3041 | ||
3042 | if (num_freqs == 0) { | |
3043 | os_free(freqs); | |
3044 | freqs = NULL; | |
3045 | } | |
3046 | ||
3047 | return freqs; | |
3048 | } | |
3049 | ||
3050 | ||
3051 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
3052 | { | |
3053 | int timeout; | |
3054 | int count; | |
3055 | int *freqs = NULL; | |
3056 | ||
5fd9fb27 JM |
3057 | /* |
3058 | * Remove possible authentication timeout since the connection failed. | |
3059 | */ | |
3060 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
3061 | ||
0fb337c1 JM |
3062 | /* |
3063 | * Add the failed BSSID into the blacklist and speed up next scan | |
3064 | * attempt if there could be other APs that could accept association. | |
3065 | * The current blacklist count indicates how many times we have tried | |
3066 | * connecting to this AP and multiple attempts mean that other APs are | |
3067 | * either not available or has already been tried, so that we can start | |
3068 | * increasing the delay here to avoid constant scanning. | |
3069 | */ | |
3070 | count = wpa_blacklist_add(wpa_s, bssid); | |
3071 | if (count == 1 && wpa_s->current_bss) { | |
3072 | /* | |
3073 | * This BSS was not in the blacklist before. If there is | |
3074 | * another BSS available for the same ESS, we should try that | |
3075 | * next. Otherwise, we may as well try this one once more | |
3076 | * before allowing other, likely worse, ESSes to be considered. | |
3077 | */ | |
3078 | freqs = get_bss_freqs_in_ess(wpa_s); | |
3079 | if (freqs) { | |
f049052b BG |
3080 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " |
3081 | "has been seen; try it next"); | |
0fb337c1 JM |
3082 | wpa_blacklist_add(wpa_s, bssid); |
3083 | /* | |
3084 | * On the next scan, go through only the known channels | |
3085 | * used in this ESS based on previous scans to speed up | |
3086 | * common load balancing use case. | |
3087 | */ | |
3088 | os_free(wpa_s->next_scan_freqs); | |
3089 | wpa_s->next_scan_freqs = freqs; | |
3090 | } | |
3091 | } | |
3092 | ||
3093 | switch (count) { | |
3094 | case 1: | |
3095 | timeout = 100; | |
3096 | break; | |
3097 | case 2: | |
3098 | timeout = 500; | |
3099 | break; | |
3100 | case 3: | |
3101 | timeout = 1000; | |
3102 | break; | |
3103 | default: | |
3104 | timeout = 5000; | |
3105 | } | |
3106 | ||
3107 | /* | |
3108 | * TODO: if more than one possible AP is available in scan results, | |
3109 | * could try the other ones before requesting a new scan. | |
3110 | */ | |
3111 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
3112 | 1000 * (timeout % 1000)); | |
3113 | } | |
22628eca JM |
3114 | |
3115 | ||
3116 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) | |
3117 | { | |
3118 | return wpa_s->conf->ap_scan == 2 || | |
3119 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); | |
3120 | } |