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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant | |
6f78f2fb | 3 | * Copyright (c) 2003-2009, 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" | |
22 | #include "eapol_supp/eapol_supp_sm.h" | |
23 | #include "eap_peer/eap.h" | |
3ec97afe | 24 | #include "eap_server/eap_methods.h" |
6fc6879b JM |
25 | #include "wpa.h" |
26 | #include "eloop.h" | |
6fc6879b JM |
27 | #include "config.h" |
28 | #include "l2_packet/l2_packet.h" | |
29 | #include "wpa_supplicant_i.h" | |
2d5b792d | 30 | #include "driver_i.h" |
6fc6879b | 31 | #include "ctrl_iface.h" |
6fc6879b | 32 | #include "pcsc_funcs.h" |
90973fb2 | 33 | #include "common/version.h" |
6fc6879b JM |
34 | #include "preauth.h" |
35 | #include "pmksa_cache.h" | |
90973fb2 | 36 | #include "common/wpa_ctrl.h" |
6fc6879b | 37 | #include "mlme.h" |
90973fb2 | 38 | #include "common/ieee802_11_defs.h" |
6fc6879b JM |
39 | #include "blacklist.h" |
40 | #include "wpas_glue.h" | |
116654ce | 41 | #include "wps_supplicant.h" |
11ef8d35 | 42 | #include "ibss_rsn.h" |
c2a04078 | 43 | #include "sme.h" |
1f1b62a0 | 44 | #include "ap.h" |
8bac466b | 45 | #include "notify.h" |
60b94c98 | 46 | #include "bgscan.h" |
6fc6879b JM |
47 | |
48 | const char *wpa_supplicant_version = | |
49 | "wpa_supplicant v" VERSION_STR "\n" | |
6f78f2fb | 50 | "Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
51 | |
52 | const char *wpa_supplicant_license = | |
53 | "This program is free software. You can distribute it and/or modify it\n" | |
54 | "under the terms of the GNU General Public License version 2.\n" | |
55 | "\n" | |
56 | "Alternatively, this software may be distributed under the terms of the\n" | |
57 | "BSD license. See README and COPYING for more details.\n" | |
58 | #ifdef EAP_TLS_OPENSSL | |
59 | "\nThis product includes software developed by the OpenSSL Project\n" | |
60 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
61 | #endif /* EAP_TLS_OPENSSL */ | |
62 | ; | |
63 | ||
64 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
65 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
66 | const char *wpa_supplicant_full_license1 = | |
67 | "This program is free software; you can redistribute it and/or modify\n" | |
68 | "it under the terms of the GNU General Public License version 2 as\n" | |
69 | "published by the Free Software Foundation.\n" | |
70 | "\n" | |
71 | "This program is distributed in the hope that it will be useful,\n" | |
72 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
73 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
74 | "GNU General Public License for more details.\n" | |
75 | "\n"; | |
76 | const char *wpa_supplicant_full_license2 = | |
77 | "You should have received a copy of the GNU General Public License\n" | |
78 | "along with this program; if not, write to the Free Software\n" | |
79 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
80 | "\n" | |
81 | "Alternatively, this software may be distributed under the terms of the\n" | |
82 | "BSD license.\n" | |
83 | "\n" | |
84 | "Redistribution and use in source and binary forms, with or without\n" | |
85 | "modification, are permitted provided that the following conditions are\n" | |
86 | "met:\n" | |
87 | "\n"; | |
88 | const char *wpa_supplicant_full_license3 = | |
89 | "1. Redistributions of source code must retain the above copyright\n" | |
90 | " notice, this list of conditions and the following disclaimer.\n" | |
91 | "\n" | |
92 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
93 | " notice, this list of conditions and the following disclaimer in the\n" | |
94 | " documentation and/or other materials provided with the distribution.\n" | |
95 | "\n"; | |
96 | const char *wpa_supplicant_full_license4 = | |
97 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
98 | " names of its contributors may be used to endorse or promote products\n" | |
99 | " derived from this software without specific prior written permission.\n" | |
100 | "\n" | |
101 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
102 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
103 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
104 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
105 | const char *wpa_supplicant_full_license5 = | |
106 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
107 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
108 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
109 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
110 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
111 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
112 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
113 | "\n"; | |
114 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
115 | ||
6fc6879b JM |
116 | extern int wpa_debug_level; |
117 | extern int wpa_debug_show_keys; | |
118 | extern int wpa_debug_timestamp; | |
c5121837 | 119 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
120 | |
121 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 122 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
123 | { |
124 | int i, set = 0; | |
125 | ||
126 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
127 | if (ssid->wep_key_len[i] == 0) | |
128 | continue; | |
129 | ||
130 | set = 1; | |
131 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, | |
132 | (u8 *) "\xff\xff\xff\xff\xff\xff", | |
133 | i, i == ssid->wep_tx_keyidx, (u8 *) "", 0, | |
134 | ssid->wep_key[i], ssid->wep_key_len[i]); | |
135 | } | |
136 | ||
137 | return set; | |
138 | } | |
139 | ||
140 | ||
141 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
142 | struct wpa_ssid *ssid) | |
143 | { | |
144 | u8 key[32]; | |
145 | size_t keylen; | |
146 | wpa_alg alg; | |
147 | u8 seq[6] = { 0 }; | |
148 | ||
149 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
150 | * sending unicast and multicast packets. */ | |
151 | ||
152 | if (ssid->mode != IEEE80211_MODE_IBSS) { | |
153 | wpa_printf(MSG_INFO, "WPA: Invalid mode %d (not IBSS/ad-hoc) " | |
154 | "for WPA-None", ssid->mode); | |
155 | return -1; | |
156 | } | |
157 | ||
158 | if (!ssid->psk_set) { | |
159 | wpa_printf(MSG_INFO, "WPA: No PSK configured for WPA-None"); | |
160 | return -1; | |
161 | } | |
162 | ||
163 | switch (wpa_s->group_cipher) { | |
164 | case WPA_CIPHER_CCMP: | |
165 | os_memcpy(key, ssid->psk, 16); | |
166 | keylen = 16; | |
167 | alg = WPA_ALG_CCMP; | |
168 | break; | |
169 | case WPA_CIPHER_TKIP: | |
170 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
171 | os_memcpy(key, ssid->psk, 16 + 8); | |
172 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
173 | keylen = 32; | |
174 | alg = WPA_ALG_TKIP; | |
175 | break; | |
176 | default: | |
177 | wpa_printf(MSG_INFO, "WPA: Invalid group cipher %d for " | |
178 | "WPA-None", wpa_s->group_cipher); | |
179 | return -1; | |
180 | } | |
181 | ||
182 | /* TODO: should actually remember the previously used seq#, both for TX | |
183 | * and RX from each STA.. */ | |
184 | ||
185 | return wpa_drv_set_key(wpa_s, alg, (u8 *) "\xff\xff\xff\xff\xff\xff", | |
186 | 0, 1, seq, 6, key, keylen); | |
187 | } | |
188 | ||
189 | ||
190 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
191 | { | |
192 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
193 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 194 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
195 | bssid = wpa_s->pending_bssid; |
196 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
197 | MAC2STR(bssid)); | |
198 | wpa_blacklist_add(wpa_s, bssid); | |
199 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
200 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
201 | wpa_s->reassociate = 1; | |
202 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
203 | } | |
204 | ||
205 | ||
206 | /** | |
207 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
208 | * @wpa_s: Pointer to wpa_supplicant data | |
209 | * @sec: Number of seconds after which to time out authentication | |
210 | * @usec: Number of microseconds after which to time out authentication | |
211 | * | |
212 | * This function is used to schedule a timeout for the current authentication | |
213 | * attempt. | |
214 | */ | |
215 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
216 | int sec, int usec) | |
217 | { | |
c2a04078 JM |
218 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
219 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
220 | return; |
221 | ||
222 | wpa_msg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " | |
223 | "%d usec", sec, usec); | |
224 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
225 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
226 | } | |
227 | ||
228 | ||
229 | /** | |
230 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
231 | * @wpa_s: Pointer to wpa_supplicant data | |
232 | * | |
233 | * This function is used to cancel authentication timeout scheduled with | |
234 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
235 | * been completed. | |
236 | */ | |
237 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
238 | { | |
239 | wpa_msg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); | |
240 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
241 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
242 | } | |
243 | ||
244 | ||
245 | /** | |
246 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
247 | * @wpa_s: Pointer to wpa_supplicant data | |
248 | * | |
249 | * This function is used to configure EAPOL state machine based on the selected | |
250 | * authentication mode. | |
251 | */ | |
252 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
253 | { | |
254 | #ifdef IEEE8021X_EAPOL | |
255 | struct eapol_config eapol_conf; | |
256 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
257 | ||
53895c3b JM |
258 | #ifdef CONFIG_IBSS_RSN |
259 | if (ssid->mode == IEEE80211_MODE_IBSS && | |
260 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
261 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
262 | /* | |
263 | * RSN IBSS authentication is per-STA and we can disable the | |
264 | * per-BSSID EAPOL authentication. | |
265 | */ | |
266 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
267 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
268 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
269 | return; | |
270 | } | |
271 | #endif /* CONFIG_IBSS_RSN */ | |
272 | ||
0a40ec6a JM |
273 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
274 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
275 | ||
6fc6879b JM |
276 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
277 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
278 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
279 | else | |
280 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
281 | ||
282 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
283 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
284 | eapol_conf.accept_802_1x_keys = 1; | |
285 | eapol_conf.required_keys = 0; | |
286 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
287 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
288 | } | |
289 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
290 | eapol_conf.required_keys |= | |
291 | EAPOL_REQUIRE_KEY_BROADCAST; | |
292 | } | |
293 | ||
c2a04078 | 294 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 295 | eapol_conf.required_keys = 0; |
6fc6879b JM |
296 | } |
297 | if (wpa_s->conf) | |
298 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
299 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
300 | eapol_conf.eap_disabled = |
301 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
302 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
303 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
304 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
305 | #endif /* IEEE8021X_EAPOL */ | |
306 | } | |
307 | ||
308 | ||
309 | /** | |
310 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
311 | * @wpa_s: Pointer to wpa_supplicant data | |
312 | * @ssid: Configuration data for the network | |
313 | * | |
314 | * This function is used to configure WPA state machine and related parameters | |
315 | * to a mode where WPA is not enabled. This is called as part of the | |
316 | * authentication configuration when the selected network does not use WPA. | |
317 | */ | |
318 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
319 | struct wpa_ssid *ssid) | |
320 | { | |
321 | int i; | |
322 | ||
ad08c363 JM |
323 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
324 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
325 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
326 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
327 | else | |
328 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
329 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
330 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
331 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
332 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
333 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
334 | wpa_s->mgmt_group_cipher = 0; | |
335 | ||
336 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
337 | if (ssid->wep_key_len[i] > 5) { | |
338 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
339 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
340 | break; | |
341 | } else if (ssid->wep_key_len[i] > 0) { | |
342 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
343 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
344 | break; | |
345 | } | |
346 | } | |
347 | ||
348 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
349 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
350 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
351 | wpa_s->pairwise_cipher); | |
352 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
353 | #ifdef CONFIG_IEEE80211W | |
354 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
355 | wpa_s->mgmt_group_cipher); | |
356 | #endif /* CONFIG_IEEE80211W */ | |
357 | ||
358 | pmksa_cache_clear_current(wpa_s->wpa); | |
359 | } | |
360 | ||
361 | ||
362 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
363 | { | |
60b94c98 | 364 | bgscan_deinit(wpa_s); |
6fc6879b JM |
365 | scard_deinit(wpa_s->scard); |
366 | wpa_s->scard = NULL; | |
367 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
368 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
369 | l2_packet_deinit(wpa_s->l2); | |
370 | wpa_s->l2 = NULL; | |
371 | if (wpa_s->l2_br) { | |
372 | l2_packet_deinit(wpa_s->l2_br); | |
373 | wpa_s->l2_br = NULL; | |
374 | } | |
375 | ||
376 | if (wpa_s->ctrl_iface) { | |
377 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
378 | wpa_s->ctrl_iface = NULL; | |
379 | } | |
380 | if (wpa_s->conf != NULL) { | |
381 | wpa_config_free(wpa_s->conf); | |
382 | wpa_s->conf = NULL; | |
383 | } | |
384 | ||
385 | os_free(wpa_s->confname); | |
386 | wpa_s->confname = NULL; | |
387 | ||
388 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
389 | eapol_sm_deinit(wpa_s->eapol); | |
390 | wpa_s->eapol = NULL; | |
391 | ||
392 | rsn_preauth_deinit(wpa_s->wpa); | |
393 | ||
394 | pmksa_candidate_free(wpa_s->wpa); | |
395 | wpa_sm_deinit(wpa_s->wpa); | |
396 | wpa_s->wpa = NULL; | |
397 | wpa_blacklist_clear(wpa_s); | |
398 | ||
399 | wpa_scan_results_free(wpa_s->scan_res); | |
400 | wpa_s->scan_res = NULL; | |
401 | ||
402 | wpa_supplicant_cancel_scan(wpa_s); | |
403 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
404 | ||
405 | ieee80211_sta_deinit(wpa_s); | |
116654ce JM |
406 | |
407 | wpas_wps_deinit(wpa_s); | |
11ef8d35 | 408 | |
1ff73338 JM |
409 | wpabuf_free(wpa_s->pending_eapol_rx); |
410 | wpa_s->pending_eapol_rx = NULL; | |
411 | ||
11ef8d35 JM |
412 | #ifdef CONFIG_IBSS_RSN |
413 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
414 | wpa_s->ibss_rsn = NULL; | |
415 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 JM |
416 | |
417 | #ifdef CONFIG_SME | |
418 | os_free(wpa_s->sme.ft_ies); | |
419 | wpa_s->sme.ft_ies = NULL; | |
420 | wpa_s->sme.ft_ies_len = 0; | |
421 | #endif /* CONFIG_SME */ | |
2d5b792d JM |
422 | |
423 | #ifdef CONFIG_AP | |
424 | wpa_supplicant_ap_deinit(wpa_s); | |
425 | #endif /* CONFIG_AP */ | |
6fc6879b JM |
426 | } |
427 | ||
428 | ||
429 | /** | |
430 | * wpa_clear_keys - Clear keys configured for the driver | |
431 | * @wpa_s: Pointer to wpa_supplicant data | |
432 | * @addr: Previously used BSSID or %NULL if not available | |
433 | * | |
434 | * This function clears the encryption keys that has been previously configured | |
435 | * for the driver. | |
436 | */ | |
437 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
438 | { | |
439 | u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff"; | |
440 | ||
441 | if (wpa_s->keys_cleared) { | |
442 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
443 | * timing issues with keys being cleared just before new keys | |
444 | * are set or just after association or something similar. This | |
445 | * shows up in group key handshake failing often because of the | |
446 | * client not receiving the first encrypted packets correctly. | |
447 | * Skipping some of the extra key clearing steps seems to help | |
448 | * in completing group key handshake more reliably. */ | |
449 | wpa_printf(MSG_DEBUG, "No keys have been configured - " | |
450 | "skip key clearing"); | |
451 | return; | |
452 | } | |
453 | ||
454 | /* MLME-DELETEKEYS.request */ | |
455 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0); | |
456 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0); | |
457 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0); | |
458 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 MH |
459 | #ifdef CONFIG_IEEE80211W |
460 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 4, 0, NULL, 0, NULL, 0); | |
461 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 5, 0, NULL, 0, NULL, 0); | |
462 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
463 | if (addr) { |
464 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
465 | 0); | |
466 | /* MLME-SETPROTECTION.request(None) */ | |
467 | wpa_drv_mlme_setprotection( | |
468 | wpa_s, addr, | |
469 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
470 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
471 | } | |
472 | wpa_s->keys_cleared = 1; | |
473 | } | |
474 | ||
475 | ||
476 | /** | |
477 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
478 | * @state: State (wpa_state; WPA_*) | |
479 | * Returns: The state name as a printable text string | |
480 | */ | |
481 | const char * wpa_supplicant_state_txt(int state) | |
482 | { | |
483 | switch (state) { | |
484 | case WPA_DISCONNECTED: | |
485 | return "DISCONNECTED"; | |
486 | case WPA_INACTIVE: | |
487 | return "INACTIVE"; | |
488 | case WPA_SCANNING: | |
489 | return "SCANNING"; | |
c2a04078 JM |
490 | case WPA_AUTHENTICATING: |
491 | return "AUTHENTICATING"; | |
6fc6879b JM |
492 | case WPA_ASSOCIATING: |
493 | return "ASSOCIATING"; | |
494 | case WPA_ASSOCIATED: | |
495 | return "ASSOCIATED"; | |
496 | case WPA_4WAY_HANDSHAKE: | |
497 | return "4WAY_HANDSHAKE"; | |
498 | case WPA_GROUP_HANDSHAKE: | |
499 | return "GROUP_HANDSHAKE"; | |
500 | case WPA_COMPLETED: | |
501 | return "COMPLETED"; | |
502 | default: | |
503 | return "UNKNOWN"; | |
504 | } | |
505 | } | |
506 | ||
507 | ||
508 | /** | |
509 | * wpa_supplicant_set_state - Set current connection state | |
510 | * @wpa_s: Pointer to wpa_supplicant data | |
511 | * @state: The new connection state | |
512 | * | |
513 | * This function is called whenever the connection state changes, e.g., | |
514 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
515 | */ | |
516 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state) | |
517 | { | |
518 | wpa_printf(MSG_DEBUG, "State: %s -> %s", | |
519 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
520 | wpa_supplicant_state_txt(state)); | |
521 | ||
cb8564b1 DW |
522 | if (state != WPA_SCANNING) |
523 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
524 | ||
8bac466b | 525 | wpas_notify_state_changed(wpa_s, state, wpa_s->wpa_state); |
6fc6879b JM |
526 | |
527 | if (state == WPA_COMPLETED && wpa_s->new_connection) { | |
528 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
529 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
530 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
531 | MACSTR " completed %s [id=%d id_str=%s]", | |
532 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
533 | "(reauth)" : "(auth)", | |
534 | ssid ? ssid->id : -1, | |
535 | ssid && ssid->id_str ? ssid->id_str : ""); | |
536 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
537 | wpa_s->new_connection = 0; | |
538 | wpa_s->reassociated_connection = 1; | |
539 | wpa_drv_set_operstate(wpa_s, 1); | |
540 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || | |
541 | state == WPA_ASSOCIATED) { | |
542 | wpa_s->new_connection = 1; | |
543 | wpa_drv_set_operstate(wpa_s, 0); | |
544 | } | |
545 | wpa_s->wpa_state = state; | |
546 | } | |
547 | ||
548 | ||
549 | static void wpa_supplicant_terminate(int sig, void *eloop_ctx, | |
550 | void *signal_ctx) | |
551 | { | |
552 | struct wpa_global *global = eloop_ctx; | |
553 | struct wpa_supplicant *wpa_s; | |
554 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
555 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " | |
556 | "received", sig); | |
557 | } | |
558 | eloop_terminate(); | |
559 | } | |
560 | ||
561 | ||
562 | static void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) | |
563 | { | |
8bac466b | 564 | wpa_states old_state = wpa_s->wpa_state; |
6fc6879b JM |
565 | wpa_s->pairwise_cipher = 0; |
566 | wpa_s->group_cipher = 0; | |
567 | wpa_s->mgmt_group_cipher = 0; | |
568 | wpa_s->key_mgmt = 0; | |
569 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
8bac466b | 570 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
6fc6879b JM |
571 | } |
572 | ||
573 | ||
574 | /** | |
575 | * wpa_supplicant_reload_configuration - Reload configuration data | |
576 | * @wpa_s: Pointer to wpa_supplicant data | |
577 | * Returns: 0 on success or -1 if configuration parsing failed | |
578 | * | |
579 | * This function can be used to request that the configuration data is reloaded | |
580 | * (e.g., after configuration file change). This function is reloading | |
581 | * configuration only for one interface, so this may need to be called multiple | |
582 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
583 | * interfaces need reconfiguration. | |
584 | */ | |
585 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
586 | { | |
587 | struct wpa_config *conf; | |
8bac466b | 588 | struct wpa_ssid *old_ssid; |
6fc6879b | 589 | int reconf_ctrl; |
8bac466b JM |
590 | int old_ap_scan; |
591 | ||
6fc6879b JM |
592 | if (wpa_s->confname == NULL) |
593 | return -1; | |
594 | conf = wpa_config_read(wpa_s->confname); | |
595 | if (conf == NULL) { | |
596 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
597 | "file '%s' - exiting", wpa_s->confname); | |
598 | return -1; | |
599 | } | |
600 | ||
601 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
602 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
603 | os_strcmp(conf->ctrl_interface, | |
604 | wpa_s->conf->ctrl_interface) != 0); | |
605 | ||
606 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
607 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
608 | wpa_s->ctrl_iface = NULL; | |
609 | } | |
610 | ||
611 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
8bac466b | 612 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 613 | wpa_s->current_ssid = NULL; |
8bac466b JM |
614 | if (old_ssid != wpa_s->current_ssid) |
615 | wpas_notify_network_changed(wpa_s); | |
616 | ||
6fc6879b JM |
617 | /* |
618 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
619 | * pkcs11_engine_path, pkcs11_module_path. | |
620 | */ | |
56586197 | 621 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
622 | /* |
623 | * Clear forced success to clear EAP state for next | |
624 | * authentication. | |
625 | */ | |
626 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
627 | } | |
628 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
629 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
630 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
631 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
632 | |
633 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
634 | wpa_config_free(wpa_s->conf); |
635 | wpa_s->conf = conf; | |
8bac466b JM |
636 | if (old_ap_scan != wpa_s->conf->ap_scan) |
637 | wpas_notify_ap_scan_changed(wpa_s); | |
638 | ||
6fc6879b JM |
639 | if (reconf_ctrl) |
640 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
641 | ||
642 | wpa_supplicant_clear_status(wpa_s); | |
643 | wpa_s->reassociate = 1; | |
644 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
645 | wpa_msg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); | |
646 | return 0; | |
647 | } | |
648 | ||
649 | ||
650 | static void wpa_supplicant_reconfig(int sig, void *eloop_ctx, | |
651 | void *signal_ctx) | |
652 | { | |
653 | struct wpa_global *global = eloop_ctx; | |
654 | struct wpa_supplicant *wpa_s; | |
655 | wpa_printf(MSG_DEBUG, "Signal %d received - reconfiguring", sig); | |
656 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
657 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { | |
658 | eloop_terminate(); | |
659 | } | |
660 | } | |
661 | } | |
662 | ||
663 | ||
664 | static wpa_cipher cipher_suite2driver(int cipher) | |
665 | { | |
666 | switch (cipher) { | |
667 | case WPA_CIPHER_NONE: | |
668 | return CIPHER_NONE; | |
669 | case WPA_CIPHER_WEP40: | |
670 | return CIPHER_WEP40; | |
671 | case WPA_CIPHER_WEP104: | |
672 | return CIPHER_WEP104; | |
673 | case WPA_CIPHER_CCMP: | |
674 | return CIPHER_CCMP; | |
675 | case WPA_CIPHER_TKIP: | |
676 | default: | |
677 | return CIPHER_TKIP; | |
678 | } | |
679 | } | |
680 | ||
681 | ||
682 | static wpa_key_mgmt key_mgmt2driver(int key_mgmt) | |
683 | { | |
684 | switch (key_mgmt) { | |
685 | case WPA_KEY_MGMT_NONE: | |
686 | return KEY_MGMT_NONE; | |
687 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
688 | return KEY_MGMT_802_1X_NO_WPA; | |
689 | case WPA_KEY_MGMT_IEEE8021X: | |
690 | return KEY_MGMT_802_1X; | |
691 | case WPA_KEY_MGMT_WPA_NONE: | |
692 | return KEY_MGMT_WPA_NONE; | |
693 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
694 | return KEY_MGMT_FT_802_1X; | |
695 | case WPA_KEY_MGMT_FT_PSK: | |
696 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
697 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
698 | return KEY_MGMT_802_1X_SHA256; | |
699 | case WPA_KEY_MGMT_PSK_SHA256: | |
700 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
701 | case WPA_KEY_MGMT_WPS: |
702 | return KEY_MGMT_WPS; | |
6fc6879b JM |
703 | case WPA_KEY_MGMT_PSK: |
704 | default: | |
705 | return KEY_MGMT_PSK; | |
706 | } | |
707 | } | |
708 | ||
709 | ||
710 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
711 | struct wpa_ssid *ssid, | |
712 | struct wpa_ie_data *ie) | |
713 | { | |
714 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
715 | if (ret) { | |
716 | if (ret == -2) { | |
717 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
718 | "from association info"); | |
719 | } | |
720 | return -1; | |
721 | } | |
722 | ||
723 | wpa_printf(MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set cipher " | |
724 | "suites"); | |
725 | if (!(ie->group_cipher & ssid->group_cipher)) { | |
726 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
727 | "cipher 0x%x (mask 0x%x) - reject", | |
728 | ie->group_cipher, ssid->group_cipher); | |
729 | return -1; | |
730 | } | |
731 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
732 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
733 | "cipher 0x%x (mask 0x%x) - reject", | |
734 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
735 | return -1; | |
736 | } | |
737 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
738 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
739 | "management 0x%x (mask 0x%x) - reject", | |
740 | ie->key_mgmt, ssid->key_mgmt); | |
741 | return -1; | |
742 | } | |
743 | ||
744 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 745 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
6fc6879b JM |
746 | ssid->ieee80211w == IEEE80211W_REQUIRED) { |
747 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " | |
748 | "that does not support management frame protection - " | |
749 | "reject"); | |
750 | return -1; | |
751 | } | |
752 | #endif /* CONFIG_IEEE80211W */ | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
757 | ||
758 | /** | |
759 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
760 | * @wpa_s: Pointer to wpa_supplicant data | |
761 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
762 | * @ssid: Configuration data for the selected network | |
763 | * @wpa_ie: Buffer for the WPA/RSN IE | |
764 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
765 | * used buffer length in case the functions returns success. | |
766 | * Returns: 0 on success or -1 on failure | |
767 | * | |
768 | * This function is used to configure authentication and encryption parameters | |
769 | * based on the network configuration and scan result for the selected BSS (if | |
770 | * available). | |
771 | */ | |
772 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
773 | struct wpa_scan_res *bss, | |
774 | struct wpa_ssid *ssid, | |
775 | u8 *wpa_ie, size_t *wpa_ie_len) | |
776 | { | |
777 | struct wpa_ie_data ie; | |
778 | int sel, proto; | |
779 | const u8 *bss_wpa, *bss_rsn; | |
780 | ||
781 | if (bss) { | |
782 | bss_wpa = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
783 | bss_rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN); | |
784 | } else | |
785 | bss_wpa = bss_rsn = NULL; | |
786 | ||
787 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
788 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
789 | (ie.group_cipher & ssid->group_cipher) && | |
790 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
791 | (ie.key_mgmt & ssid->key_mgmt)) { | |
792 | wpa_msg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); | |
793 | proto = WPA_PROTO_RSN; | |
794 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
795 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
796 | (ie.group_cipher & ssid->group_cipher) && | |
797 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
798 | (ie.key_mgmt & ssid->key_mgmt)) { | |
799 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); | |
800 | proto = WPA_PROTO_WPA; | |
801 | } else if (bss) { | |
802 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
803 | return -1; | |
804 | } else { | |
805 | if (ssid->proto & WPA_PROTO_RSN) | |
806 | proto = WPA_PROTO_RSN; | |
807 | else | |
808 | proto = WPA_PROTO_WPA; | |
809 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
810 | os_memset(&ie, 0, sizeof(ie)); | |
811 | ie.group_cipher = ssid->group_cipher; | |
812 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
813 | ie.key_mgmt = ssid->key_mgmt; | |
814 | #ifdef CONFIG_IEEE80211W | |
815 | ie.mgmt_group_cipher = | |
816 | ssid->ieee80211w != NO_IEEE80211W ? | |
817 | WPA_CIPHER_AES_128_CMAC : 0; | |
818 | #endif /* CONFIG_IEEE80211W */ | |
819 | wpa_printf(MSG_DEBUG, "WPA: Set cipher suites based " | |
820 | "on configuration"); | |
821 | } else | |
822 | proto = ie.proto; | |
823 | } | |
824 | ||
825 | wpa_printf(MSG_DEBUG, "WPA: Selected cipher suites: group %d " | |
826 | "pairwise %d key_mgmt %d proto %d", | |
827 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
828 | #ifdef CONFIG_IEEE80211W | |
829 | if (ssid->ieee80211w) { | |
830 | wpa_printf(MSG_DEBUG, "WPA: Selected mgmt group cipher %d", | |
831 | ie.mgmt_group_cipher); | |
832 | } | |
833 | #endif /* CONFIG_IEEE80211W */ | |
834 | ||
835 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); | |
836 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
837 | !!(ssid->proto & WPA_PROTO_RSN)); | |
838 | ||
839 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
840 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
841 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
842 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
843 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
844 | return -1; | |
845 | } | |
846 | ||
847 | sel = ie.group_cipher & ssid->group_cipher; | |
848 | if (sel & WPA_CIPHER_CCMP) { | |
849 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
850 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); | |
851 | } else if (sel & WPA_CIPHER_TKIP) { | |
852 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
853 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); | |
854 | } else if (sel & WPA_CIPHER_WEP104) { | |
855 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
856 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); | |
857 | } else if (sel & WPA_CIPHER_WEP40) { | |
858 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
859 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); | |
860 | } else { | |
861 | wpa_printf(MSG_WARNING, "WPA: Failed to select group cipher."); | |
862 | return -1; | |
863 | } | |
864 | ||
865 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
866 | if (sel & WPA_CIPHER_CCMP) { | |
867 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
868 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); | |
869 | } else if (sel & WPA_CIPHER_TKIP) { | |
870 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
871 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); | |
872 | } else if (sel & WPA_CIPHER_NONE) { | |
873 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
874 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); | |
875 | } else { | |
876 | wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " | |
877 | "cipher."); | |
878 | return -1; | |
879 | } | |
880 | ||
881 | sel = ie.key_mgmt & ssid->key_mgmt; | |
882 | if (0) { | |
883 | #ifdef CONFIG_IEEE80211R | |
884 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
885 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
886 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); | |
887 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { | |
888 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
889 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); | |
890 | #endif /* CONFIG_IEEE80211R */ | |
56586197 JM |
891 | #ifdef CONFIG_IEEE80211W |
892 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
893 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
894 | wpa_msg(wpa_s, MSG_DEBUG, | |
895 | "WPA: using KEY_MGMT 802.1X with SHA256"); | |
896 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
897 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
898 | wpa_msg(wpa_s, MSG_DEBUG, | |
899 | "WPA: using KEY_MGMT PSK with SHA256"); | |
900 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
901 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
902 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
903 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); | |
904 | } else if (sel & WPA_KEY_MGMT_PSK) { | |
905 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
906 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); | |
907 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { | |
908 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
909 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); | |
910 | } else { | |
911 | wpa_printf(MSG_WARNING, "WPA: Failed to select authenticated " | |
912 | "key management type."); | |
913 | return -1; | |
914 | } | |
915 | ||
916 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
917 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
918 | wpa_s->pairwise_cipher); | |
919 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
920 | ||
921 | #ifdef CONFIG_IEEE80211W | |
922 | sel = ie.mgmt_group_cipher; | |
923 | if (ssid->ieee80211w == NO_IEEE80211W || | |
0b60b0aa | 924 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
925 | sel = 0; |
926 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
927 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
928 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
929 | "AES-128-CMAC"); | |
930 | } else { | |
931 | wpa_s->mgmt_group_cipher = 0; | |
932 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); | |
933 | } | |
934 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
935 | wpa_s->mgmt_group_cipher); | |
936 | #endif /* CONFIG_IEEE80211W */ | |
937 | ||
938 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
939 | wpa_printf(MSG_WARNING, "WPA: Failed to generate WPA IE."); | |
940 | return -1; | |
941 | } | |
942 | ||
56586197 JM |
943 | if (ssid->key_mgmt & |
944 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256)) | |
6fc6879b JM |
945 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
946 | else | |
947 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
952 | ||
953 | /** | |
954 | * wpa_supplicant_associate - Request association | |
955 | * @wpa_s: Pointer to wpa_supplicant data | |
956 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
957 | * @ssid: Configuration data for the selected network | |
958 | * | |
959 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
960 | */ | |
961 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
962 | struct wpa_scan_res *bss, struct wpa_ssid *ssid) | |
963 | { | |
964 | u8 wpa_ie[80]; | |
965 | size_t wpa_ie_len; | |
8bac466b | 966 | int use_crypt, ret, i, bssid_changed; |
6fc6879b JM |
967 | int algs = AUTH_ALG_OPEN_SYSTEM; |
968 | wpa_cipher cipher_pairwise, cipher_group; | |
969 | struct wpa_driver_associate_params params; | |
970 | int wep_keys_set = 0; | |
971 | struct wpa_driver_capa capa; | |
972 | int assoc_failed = 0; | |
8bac466b | 973 | struct wpa_ssid *old_ssid; |
6fc6879b | 974 | |
1581b38b JM |
975 | if (ssid->mode == 2) { |
976 | #ifdef CONFIG_AP | |
977 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
978 | wpa_printf(MSG_INFO, "Driver does not support AP " | |
979 | "mode"); | |
980 | return; | |
981 | } | |
982 | wpa_supplicant_create_ap(wpa_s, ssid); | |
983 | #else /* CONFIG_AP */ | |
984 | wpa_printf(MSG_ERROR, "AP mode support not included in the " | |
985 | "build"); | |
986 | #endif /* CONFIG_AP */ | |
987 | return; | |
988 | } | |
989 | ||
c2a04078 JM |
990 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { |
991 | sme_authenticate(wpa_s, bss, ssid); | |
992 | return; | |
993 | } | |
994 | ||
6fc6879b JM |
995 | wpa_s->reassociate = 0; |
996 | if (bss) { | |
997 | #ifdef CONFIG_IEEE80211R | |
998 | const u8 *md = NULL; | |
999 | #endif /* CONFIG_IEEE80211R */ | |
1000 | const u8 *ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); | |
1001 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR | |
1002 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
1003 | ie ? wpa_ssid_txt(ie + 2, ie[1]) : "", bss->freq); | |
8bac466b | 1004 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1005 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1006 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1007 | if (bssid_changed) |
1008 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b JM |
1009 | #ifdef CONFIG_IEEE80211R |
1010 | ie = wpa_scan_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); | |
1011 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) | |
1012 | md = ie + 2; | |
1013 | wpa_sm_set_ft_params(wpa_s->wpa, md, NULL, 0, NULL); | |
91a05482 JM |
1014 | if (md) { |
1015 | /* Prepare for the next transition */ | |
1016 | wpa_ft_prepare_auth_request(wpa_s->wpa); | |
1017 | } | |
6fc6879b | 1018 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1019 | #ifdef CONFIG_WPS |
1020 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1021 | wpa_s->conf->ap_scan == 2 && | |
1022 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1023 | /* Use ap_scan==1 style network selection to find the network | |
1024 | */ | |
1025 | wpa_s->scan_req = 2; | |
1026 | wpa_s->reassociate = 1; | |
1027 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1028 | return; | |
1029 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1030 | } else { |
1031 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1032 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1033 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1034 | } | |
1035 | wpa_supplicant_cancel_scan(wpa_s); | |
1036 | ||
1037 | /* Starting new association, so clear the possibly used WPA IE from the | |
1038 | * previous association. */ | |
1039 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1040 | ||
1041 | #ifdef IEEE8021X_EAPOL | |
1042 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1043 | if (ssid->leap) { | |
1044 | if (ssid->non_leap == 0) | |
1045 | algs = AUTH_ALG_LEAP; | |
1046 | else | |
1047 | algs |= AUTH_ALG_LEAP; | |
1048 | } | |
1049 | } | |
1050 | #endif /* IEEE8021X_EAPOL */ | |
1051 | wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); | |
1052 | if (ssid->auth_alg) { | |
1053 | algs = 0; | |
1054 | if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) | |
1055 | algs |= AUTH_ALG_OPEN_SYSTEM; | |
1056 | if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) | |
1057 | algs |= AUTH_ALG_SHARED_KEY; | |
1058 | if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) | |
1059 | algs |= AUTH_ALG_LEAP; | |
1060 | wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x", | |
1061 | algs); | |
1062 | } | |
6fc6879b JM |
1063 | |
1064 | if (bss && (wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || | |
1065 | wpa_scan_get_ie(bss, WLAN_EID_RSN)) && | |
1066 | (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK | | |
1067 | WPA_KEY_MGMT_FT_IEEE8021X | | |
56586197 JM |
1068 | WPA_KEY_MGMT_FT_PSK | |
1069 | WPA_KEY_MGMT_IEEE8021X_SHA256 | | |
1070 | WPA_KEY_MGMT_PSK_SHA256))) { | |
6fc6879b JM |
1071 | int try_opportunistic; |
1072 | try_opportunistic = ssid->proactive_key_caching && | |
1073 | (ssid->proto & WPA_PROTO_RSN); | |
1074 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1075 | wpa_s->current_ssid, | |
1076 | try_opportunistic) == 0) | |
1077 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1078 | wpa_ie_len = sizeof(wpa_ie); | |
1079 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1080 | wpa_ie, &wpa_ie_len)) { | |
1081 | wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key " | |
1082 | "management and encryption suites"); | |
1083 | return; | |
1084 | } | |
1085 | } else if (ssid->key_mgmt & | |
1086 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | | |
1087 | WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK | | |
56586197 JM |
1088 | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 | |
1089 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { | |
6fc6879b JM |
1090 | wpa_ie_len = sizeof(wpa_ie); |
1091 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1092 | wpa_ie, &wpa_ie_len)) { | |
1093 | wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key " | |
1094 | "management and encryption suites (no scan " | |
1095 | "results)"); | |
1096 | return; | |
1097 | } | |
ad08c363 JM |
1098 | #ifdef CONFIG_WPS |
1099 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1100 | struct wpabuf *wps_ie; |
1101 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1102 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1103 | wpa_ie_len = wpabuf_len(wps_ie); | |
1104 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1105 | } else |
1106 | wpa_ie_len = 0; | |
ad08c363 JM |
1107 | wpabuf_free(wps_ie); |
1108 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1109 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1110 | } else { |
1111 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1112 | wpa_ie_len = 0; | |
1113 | } | |
1114 | ||
1115 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); | |
1116 | use_crypt = 1; | |
1117 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1118 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1119 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1120 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1121 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1122 | use_crypt = 0; | |
1123 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1124 | use_crypt = 1; | |
1125 | wep_keys_set = 1; | |
1126 | } | |
1127 | } | |
ad08c363 JM |
1128 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1129 | use_crypt = 0; | |
6fc6879b JM |
1130 | |
1131 | #ifdef IEEE8021X_EAPOL | |
1132 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1133 | if ((ssid->eapol_flags & | |
1134 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1135 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1136 | !wep_keys_set) { | |
1137 | use_crypt = 0; | |
1138 | } else { | |
1139 | /* Assume that dynamic WEP-104 keys will be used and | |
1140 | * set cipher suites in order for drivers to expect | |
1141 | * encryption. */ | |
1142 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1143 | } | |
1144 | } | |
1145 | #endif /* IEEE8021X_EAPOL */ | |
1146 | ||
1147 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1148 | /* Set the key before (and later after) association */ | |
1149 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1150 | } | |
1151 | ||
6fc6879b JM |
1152 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
1153 | os_memset(¶ms, 0, sizeof(params)); | |
1154 | if (bss) { | |
1155 | const u8 *ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); | |
1156 | params.bssid = bss->bssid; | |
1157 | params.ssid = ie ? ie + 2 : (u8 *) ""; | |
1158 | params.ssid_len = ie ? ie[1] : 0; | |
1159 | params.freq = bss->freq; | |
1160 | } else { | |
1161 | params.ssid = ssid->ssid; | |
1162 | params.ssid_len = ssid->ssid_len; | |
1163 | } | |
1164 | if (ssid->mode == 1 && ssid->frequency > 0 && params.freq == 0) | |
1165 | params.freq = ssid->frequency; /* Initial channel for IBSS */ | |
1166 | params.wpa_ie = wpa_ie; | |
1167 | params.wpa_ie_len = wpa_ie_len; | |
1168 | params.pairwise_suite = cipher_pairwise; | |
1169 | params.group_suite = cipher_group; | |
1170 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
1171 | params.auth_alg = algs; | |
1172 | params.mode = ssid->mode; | |
1173 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1174 | if (ssid->wep_key_len[i]) | |
1175 | params.wep_key[i] = ssid->wep_key[i]; | |
1176 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1177 | } | |
1178 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1179 | ||
c2a04078 | 1180 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1181 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1182 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1183 | params.passphrase = ssid->passphrase; | |
1184 | if (ssid->psk_set) | |
1185 | params.psk = ssid->psk; | |
1186 | } | |
1187 | ||
36b15723 JM |
1188 | params.drop_unencrypted = use_crypt; |
1189 | ||
6fc6879b JM |
1190 | #ifdef CONFIG_IEEE80211W |
1191 | switch (ssid->ieee80211w) { | |
1192 | case NO_IEEE80211W: | |
1193 | params.mgmt_frame_protection = NO_MGMT_FRAME_PROTECTION; | |
1194 | break; | |
1195 | case IEEE80211W_OPTIONAL: | |
1196 | params.mgmt_frame_protection = MGMT_FRAME_PROTECTION_OPTIONAL; | |
1197 | break; | |
1198 | case IEEE80211W_REQUIRED: | |
1199 | params.mgmt_frame_protection = MGMT_FRAME_PROTECTION_REQUIRED; | |
1200 | break; | |
1201 | } | |
97d3497e JM |
1202 | if (ssid->ieee80211w != NO_IEEE80211W && bss) { |
1203 | const u8 *rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN); | |
1204 | struct wpa_ie_data ie; | |
1205 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1206 | ie.capabilities & | |
1207 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
1208 | wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: " | |
1209 | "require MFP"); | |
1210 | params.mgmt_frame_protection = | |
1211 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1212 | } | |
1213 | } | |
6fc6879b JM |
1214 | #endif /* CONFIG_IEEE80211W */ |
1215 | ||
c2a04078 | 1216 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1217 | ret = ieee80211_sta_associate(wpa_s, ¶ms); |
1218 | else | |
1219 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1220 | if (ret < 0) { | |
1221 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1222 | "failed"); | |
1223 | /* try to continue anyway; new association will be tried again | |
1224 | * after timeout */ | |
1225 | assoc_failed = 1; | |
1226 | } | |
1227 | ||
1228 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1229 | /* Set the key after the association just in case association | |
1230 | * cleared the previously configured key. */ | |
1231 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1232 | /* No need to timeout authentication since there is no key | |
1233 | * management. */ | |
1234 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1235 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b JM |
1236 | #ifdef CONFIG_IBSS_RSN |
1237 | } else if (ssid->mode == IEEE80211_MODE_IBSS && | |
1238 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
1239 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
b9a2e577 | 1240 | ibss_rsn_set_psk(wpa_s->ibss_rsn, ssid->psk); |
53895c3b JM |
1241 | /* |
1242 | * RSN IBSS authentication is per-STA and we can disable the | |
1243 | * per-BSSID authentication. | |
1244 | */ | |
1245 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1246 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
1247 | #endif /* CONFIG_IBSS_RSN */ | |
6fc6879b JM |
1248 | } else { |
1249 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1250 | int timeout = 60; |
1251 | ||
1252 | if (assoc_failed) { | |
1253 | /* give IBSS a bit more time */ | |
1254 | timeout = ssid->mode ? 10 : 5; | |
1255 | } else if (wpa_s->conf->ap_scan == 1) { | |
1256 | /* give IBSS a bit more time */ | |
1257 | timeout = ssid->mode ? 20 : 10; | |
1258 | } | |
6fc6879b JM |
1259 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1260 | } | |
1261 | ||
1262 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1263 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1264 | /* Set static WEP keys again */ | |
1265 | wpa_set_wep_keys(wpa_s, ssid); | |
1266 | } | |
1267 | ||
1268 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1269 | /* | |
1270 | * Do not allow EAP session resumption between different | |
1271 | * network configurations. | |
1272 | */ | |
1273 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1274 | } | |
8bac466b | 1275 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
1276 | wpa_s->current_ssid = ssid; |
1277 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); | |
1278 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1279 | if (old_ssid != wpa_s->current_ssid) |
1280 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1281 | } |
1282 | ||
1283 | ||
1284 | /** | |
1285 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1286 | * @wpa_s: Pointer to wpa_supplicant data | |
1287 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1288 | * | |
1289 | * This function is used to request %wpa_supplicant to disassociate with the | |
1290 | * current AP. | |
1291 | */ | |
1292 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1293 | int reason_code) | |
1294 | { | |
8bac466b | 1295 | struct wpa_ssid *old_ssid; |
6fc6879b | 1296 | u8 *addr = NULL; |
8bac466b | 1297 | |
a8e16edc | 1298 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1299 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1300 | ieee80211_sta_disassociate(wpa_s, reason_code); |
1301 | else | |
1302 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); | |
1303 | addr = wpa_s->bssid; | |
1304 | } | |
1305 | wpa_clear_keys(wpa_s, addr); | |
1306 | wpa_supplicant_mark_disassoc(wpa_s); | |
8bac466b | 1307 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
1308 | wpa_s->current_ssid = NULL; |
1309 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1310 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
8bac466b JM |
1311 | if (old_ssid != wpa_s->current_ssid) |
1312 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1313 | } |
1314 | ||
1315 | ||
1316 | /** | |
1317 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1318 | * @wpa_s: Pointer to wpa_supplicant data | |
1319 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1320 | * | |
073ab58f | 1321 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1322 | * current AP. |
1323 | */ | |
1324 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1325 | int reason_code) | |
1326 | { | |
8bac466b | 1327 | struct wpa_ssid *old_ssid; |
6fc6879b | 1328 | u8 *addr = NULL; |
8bac466b | 1329 | |
a8e16edc | 1330 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1331 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1332 | ieee80211_sta_deauthenticate(wpa_s, reason_code); |
1333 | else | |
1334 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, | |
1335 | reason_code); | |
1336 | addr = wpa_s->bssid; | |
1337 | } | |
1338 | wpa_clear_keys(wpa_s, addr); | |
c3dc92e8 | 1339 | wpa_supplicant_mark_disassoc(wpa_s); |
8bac466b | 1340 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
1341 | wpa_s->current_ssid = NULL; |
1342 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1343 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
8bac466b JM |
1344 | if (old_ssid != wpa_s->current_ssid) |
1345 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1346 | } |
1347 | ||
1348 | ||
86b89452 WS |
1349 | /** |
1350 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1351 | * @wpa_s: wpa_supplicant structure for a network interface | |
1352 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1353 | * | |
1354 | * Enables the specified network or all networks if no network specified. | |
1355 | */ | |
1356 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1357 | struct wpa_ssid *ssid) | |
1358 | { | |
1359 | struct wpa_ssid *other_ssid; | |
1360 | int was_disabled; | |
1361 | ||
1362 | if (ssid == NULL) { | |
1363 | other_ssid = wpa_s->conf->ssid; | |
1364 | while (other_ssid) { | |
1365 | if (other_ssid == wpa_s->current_ssid && | |
1366 | other_ssid->disabled) | |
1367 | wpa_s->reassociate = 1; | |
1368 | ||
1369 | was_disabled = other_ssid->disabled; | |
1370 | ||
1371 | other_ssid->disabled = 0; | |
1372 | ||
1373 | if (was_disabled != other_ssid->disabled) | |
1374 | wpas_notify_network_enabled_changed( | |
1375 | wpa_s, other_ssid); | |
1376 | ||
1377 | other_ssid = other_ssid->next; | |
1378 | } | |
1379 | if (wpa_s->reassociate) | |
1380 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1381 | } else if (wpa_s->current_ssid == NULL && ssid->disabled) { | |
1382 | /* | |
1383 | * Try to reassociate since there is no current configuration | |
1384 | * and a new network was made available. | |
1385 | */ | |
1386 | wpa_s->reassociate = 1; | |
1387 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1388 | ||
1389 | was_disabled = ssid->disabled; | |
1390 | ||
1391 | ssid->disabled = 0; | |
1392 | ||
1393 | if (was_disabled != ssid->disabled) | |
1394 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | ||
1399 | /** | |
1400 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1401 | * @wpa_s: wpa_supplicant structure for a network interface | |
1402 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1403 | * | |
1404 | * Disables the specified network or all networks if no network specified. | |
1405 | */ | |
1406 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1407 | struct wpa_ssid *ssid) | |
1408 | { | |
1409 | struct wpa_ssid *other_ssid; | |
1410 | int was_disabled; | |
1411 | ||
1412 | if (ssid == NULL) { | |
1413 | other_ssid = wpa_s->conf->ssid; | |
1414 | while (other_ssid) { | |
1415 | was_disabled = other_ssid->disabled; | |
1416 | ||
1417 | other_ssid->disabled = 1; | |
1418 | ||
1419 | if (was_disabled != other_ssid->disabled) | |
1420 | wpas_notify_network_enabled_changed( | |
1421 | wpa_s, other_ssid); | |
1422 | ||
1423 | other_ssid = other_ssid->next; | |
1424 | } | |
1425 | if (wpa_s->current_ssid) | |
1426 | wpa_supplicant_disassociate( | |
1427 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1428 | } else { | |
1429 | if (ssid == wpa_s->current_ssid) | |
1430 | wpa_supplicant_disassociate( | |
1431 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1432 | ||
1433 | was_disabled = ssid->disabled; | |
1434 | ||
1435 | ssid->disabled = 1; | |
1436 | ||
1437 | if (was_disabled != ssid->disabled) | |
1438 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | ||
1443 | /** | |
1444 | * wpa_supplicant_select_network - Attempt association with a network | |
1445 | * @wpa_s: wpa_supplicant structure for a network interface | |
1446 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1447 | */ | |
1448 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1449 | struct wpa_ssid *ssid) | |
1450 | { | |
1451 | ||
1452 | struct wpa_ssid *other_ssid; | |
1453 | ||
1454 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) | |
1455 | wpa_supplicant_disassociate( | |
1456 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1457 | ||
1458 | /* | |
1459 | * Mark all other networks disabled or mark all networks enabled if no | |
1460 | * network specified. | |
1461 | */ | |
1462 | other_ssid = wpa_s->conf->ssid; | |
1463 | while (other_ssid) { | |
1464 | int was_disabled = other_ssid->disabled; | |
1465 | ||
1466 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1467 | ||
1468 | if (was_disabled != other_ssid->disabled) | |
1469 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
1470 | ||
1471 | other_ssid = other_ssid->next; | |
1472 | } | |
1473 | wpa_s->disconnected = 0; | |
1474 | wpa_s->reassociate = 1; | |
1475 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1476 | ||
a1641d26 JM |
1477 | if (ssid) |
1478 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1479 | } |
1480 | ||
1481 | ||
1482 | /** | |
1483 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1484 | * @wpa_s: wpa_supplicant structure for a network interface | |
1485 | * @ap_scan: AP scan mode | |
1486 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1487 | * | |
1488 | */ | |
1489 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1490 | { | |
1491 | ||
1492 | int old_ap_scan; | |
1493 | ||
1494 | if (ap_scan < 0 || ap_scan > 2) | |
1495 | return -1; | |
1496 | ||
1497 | old_ap_scan = wpa_s->conf->ap_scan; | |
1498 | wpa_s->conf->ap_scan = ap_scan; | |
1499 | ||
1500 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1501 | wpas_notify_ap_scan_changed(wpa_s); | |
1502 | ||
1503 | return 0; | |
1504 | } | |
1505 | ||
1506 | ||
1507 | /** | |
1508 | * wpa_supplicant_set_debug_params - Set global debug params | |
1509 | * @global: wpa_global structure | |
1510 | * @debug_level: debug level | |
1511 | * @debug_timestamp: determines if show timestamp in debug data | |
1512 | * @debug_show_keys: determines if show keys in debug data | |
1513 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1514 | */ | |
1515 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1516 | int debug_timestamp, int debug_show_keys) | |
1517 | { | |
1518 | ||
1519 | int old_level, old_timestamp, old_show_keys; | |
1520 | ||
1521 | /* check for allowed debuglevels */ | |
1522 | if (debug_level != MSG_MSGDUMP && | |
1523 | debug_level != MSG_DEBUG && | |
1524 | debug_level != MSG_INFO && | |
1525 | debug_level != MSG_WARNING && | |
1526 | debug_level != MSG_ERROR) | |
1527 | return -1; | |
1528 | ||
1529 | old_level = wpa_debug_level; | |
1530 | old_timestamp = wpa_debug_timestamp; | |
1531 | old_show_keys = wpa_debug_show_keys; | |
1532 | ||
1533 | wpa_debug_level = debug_level; | |
1534 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1535 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1536 | ||
1537 | if (wpa_debug_level != old_level || | |
1538 | wpa_debug_timestamp != old_timestamp || | |
1539 | wpa_debug_show_keys != old_show_keys) | |
1540 | wpas_notify_debug_params_changed(global); | |
1541 | ||
1542 | return 0; | |
1543 | } | |
1544 | ||
1545 | ||
71f6e1f6 WS |
1546 | static void notify_bss_changes(struct wpa_supplicant *wpa_s, |
1547 | u8 (*prev_bssids)[ETH_ALEN], int prev_num, | |
1548 | struct wpa_scan_results *new) | |
1549 | { | |
1550 | int new_num, i, j; | |
1551 | ||
1552 | new_num = new != NULL ? new->num : 0; | |
1553 | if (prev_bssids == NULL) | |
1554 | prev_num = 0; | |
1555 | ||
1556 | for (i = 0; i < prev_num; i++) { | |
1557 | for (j = 0; j < new_num; j++) { | |
1558 | if (!os_memcmp(prev_bssids[i], new->res[j]->bssid, | |
1559 | ETH_ALEN)) | |
1560 | break; | |
1561 | } | |
1562 | if (j == new_num) | |
1563 | wpas_notify_bss_removed(wpa_s, prev_bssids[i]); | |
1564 | } | |
1565 | for (i = 0; i < new_num; i++) { | |
1566 | for (j = 0; j < prev_num; j++) { | |
1567 | if (!os_memcmp(new->res[i]->bssid, prev_bssids[j], | |
1568 | ETH_ALEN)) | |
1569 | break; | |
1570 | } | |
1571 | if (j == prev_num) | |
1572 | wpas_notify_bss_added(wpa_s, new->res[i]->bssid); | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | ||
6fc6879b JM |
1577 | /** |
1578 | * wpa_supplicant_get_scan_results - Get scan results | |
1579 | * @wpa_s: Pointer to wpa_supplicant data | |
1580 | * Returns: 0 on success, -1 on failure | |
1581 | * | |
1582 | * This function is request the current scan results from the driver and stores | |
1583 | * a local copy of the results in wpa_s->scan_res. | |
1584 | */ | |
1585 | int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s) | |
1586 | { | |
71f6e1f6 WS |
1587 | int ret, i, prev_scan_res_num; |
1588 | u8 (*prev_scan_bssids)[ETH_ALEN]; | |
1589 | ||
1590 | prev_scan_res_num = wpa_s->scan_res ? wpa_s->scan_res->num : 0; | |
1591 | prev_scan_bssids = os_malloc(prev_scan_res_num * ETH_ALEN); | |
1592 | ||
1593 | if (prev_scan_bssids) { | |
1594 | for (i = 0; i < prev_scan_res_num; i++) { | |
1595 | os_memcpy(prev_scan_bssids[i], | |
1596 | wpa_s->scan_res->res[i]->bssid, ETH_ALEN); | |
1597 | } | |
1598 | } else { | |
1599 | wpa_printf(MSG_WARNING, "Not enough memory for old scan " | |
1600 | "results list"); | |
1601 | prev_scan_res_num = 0; | |
1602 | } | |
6fc6879b | 1603 | |
3e53b314 WS |
1604 | wpa_scan_results_free(wpa_s->scan_res); |
1605 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) | |
6fc6879b | 1606 | wpa_s->scan_res = ieee80211_sta_get_scan_results(wpa_s); |
3e53b314 | 1607 | else |
6fc6879b | 1608 | wpa_s->scan_res = wpa_drv_get_scan_results2(wpa_s); |
3e53b314 WS |
1609 | if (wpa_s->scan_res == NULL) { |
1610 | wpa_printf(MSG_DEBUG, "Failed to get scan results"); | |
1611 | ret = -1; | |
1612 | } else { | |
1613 | ret = 0; | |
6fc6879b | 1614 | wpa_scan_sort_results(wpa_s->scan_res); |
3e53b314 | 1615 | } |
6fc6879b | 1616 | |
71f6e1f6 WS |
1617 | notify_bss_changes(wpa_s, prev_scan_bssids, prev_scan_res_num, |
1618 | wpa_s->scan_res); | |
1619 | os_free(prev_scan_bssids); | |
1620 | ||
6fc6879b JM |
1621 | return ret; |
1622 | } | |
1623 | ||
1624 | ||
1625 | /** | |
1626 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1627 | * @wpa_s: Pointer to wpa_supplicant data | |
1628 | * Returns: A pointer to the current network structure or %NULL on failure | |
1629 | */ | |
1630 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1631 | { | |
1632 | struct wpa_ssid *entry; | |
1633 | u8 ssid[MAX_SSID_LEN]; | |
1634 | int res; | |
1635 | size_t ssid_len; | |
1636 | u8 bssid[ETH_ALEN]; | |
1637 | int wired; | |
1638 | ||
c2a04078 | 1639 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b JM |
1640 | if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) { |
1641 | wpa_printf(MSG_WARNING, "Could not read SSID from " | |
1642 | "MLME."); | |
1643 | return NULL; | |
1644 | } | |
1645 | } else { | |
1646 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
1647 | if (res < 0) { | |
1648 | wpa_printf(MSG_WARNING, "Could not read SSID from " | |
1649 | "driver."); | |
1650 | return NULL; | |
1651 | } | |
1652 | ssid_len = res; | |
1653 | } | |
1654 | ||
c2a04078 | 1655 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1656 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
1657 | else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
1658 | wpa_printf(MSG_WARNING, "Could not read BSSID from driver."); | |
1659 | return NULL; | |
1660 | } | |
1661 | ||
c2a04078 JM |
1662 | wired = wpa_s->conf->ap_scan == 0 && |
1663 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1664 | |
1665 | entry = wpa_s->conf->ssid; | |
1666 | while (entry) { | |
1667 | if (!entry->disabled && | |
1668 | ((ssid_len == entry->ssid_len && | |
1669 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1670 | (!entry->bssid_set || | |
1671 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1672 | return entry; | |
24c23d1b JM |
1673 | #ifdef CONFIG_WPS |
1674 | if (!entry->disabled && | |
1675 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1676 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1677 | (!entry->bssid_set || | |
1678 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1679 | return entry; | |
1680 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1681 | entry = entry->next; |
1682 | } | |
1683 | ||
1684 | return NULL; | |
1685 | } | |
1686 | ||
1687 | ||
1688 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
1689 | const char *name) | |
1690 | { | |
1691 | int i; | |
362f781e JM |
1692 | size_t len; |
1693 | const char *pos; | |
6fc6879b JM |
1694 | |
1695 | if (wpa_s == NULL) | |
1696 | return -1; | |
1697 | ||
c5121837 | 1698 | if (wpa_drivers[0] == NULL) { |
6fc6879b JM |
1699 | wpa_printf(MSG_ERROR, "No driver interfaces build into " |
1700 | "wpa_supplicant."); | |
1701 | return -1; | |
1702 | } | |
1703 | ||
1704 | if (name == NULL) { | |
1705 | /* default to first driver in the list */ | |
c5121837 | 1706 | wpa_s->driver = wpa_drivers[0]; |
8a5ab9f5 | 1707 | wpa_s->global_drv_priv = wpa_s->global->drv_priv[0]; |
6fc6879b JM |
1708 | return 0; |
1709 | } | |
1710 | ||
362f781e JM |
1711 | pos = os_strchr(name, ','); |
1712 | if (pos) | |
1713 | len = pos - name; | |
1714 | else | |
1715 | len = os_strlen(name); | |
c5121837 JM |
1716 | for (i = 0; wpa_drivers[i]; i++) { |
1717 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1718 | os_strncmp(name, wpa_drivers[i]->name, len) == | |
362f781e | 1719 | 0) { |
c5121837 | 1720 | wpa_s->driver = wpa_drivers[i]; |
8a5ab9f5 | 1721 | wpa_s->global_drv_priv = wpa_s->global->drv_priv[i]; |
6fc6879b JM |
1722 | return 0; |
1723 | } | |
1724 | } | |
1725 | ||
362f781e | 1726 | wpa_printf(MSG_ERROR, "Unsupported driver '%s'.", name); |
6fc6879b JM |
1727 | return -1; |
1728 | } | |
1729 | ||
1730 | ||
1731 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, | |
1732 | const u8 *buf, size_t len) | |
1733 | { | |
1734 | struct wpa_supplicant *wpa_s = ctx; | |
1735 | ||
1736 | wpa_printf(MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); | |
1737 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); | |
1738 | ||
1ff73338 JM |
1739 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1740 | /* | |
1741 | * There is possible race condition between receiving the | |
1742 | * association event and the EAPOL frame since they are coming | |
1743 | * through different paths from the driver. In order to avoid | |
1744 | * issues in trying to process the EAPOL frame before receiving | |
1745 | * association information, lets queue it for processing until | |
1746 | * the association event is received. | |
1747 | */ | |
1748 | wpa_printf(MSG_DEBUG, "Not associated - Delay processing of " | |
1749 | "received EAPOL frame"); | |
1750 | wpabuf_free(wpa_s->pending_eapol_rx); | |
1751 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1752 | if (wpa_s->pending_eapol_rx) { | |
1753 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1754 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1755 | ETH_ALEN); | |
1756 | } | |
1757 | return; | |
1758 | } | |
1759 | ||
db149ac9 JM |
1760 | #ifdef CONFIG_AP |
1761 | if (wpa_s->ap_iface) { | |
1762 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
1763 | return; | |
1764 | } | |
1765 | #endif /* CONFIG_AP */ | |
1766 | ||
6fc6879b JM |
1767 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
1768 | wpa_printf(MSG_DEBUG, "Ignored received EAPOL frame since " | |
1769 | "no key management is configured"); | |
1770 | return; | |
1771 | } | |
1772 | ||
1773 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 1774 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 1775 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
6fc6879b JM |
1776 | wpa_s->wpa_state != WPA_COMPLETED)) { |
1777 | /* Timeout for completing IEEE 802.1X and WPA authentication */ | |
1778 | wpa_supplicant_req_auth_timeout( | |
1779 | wpa_s, | |
56586197 | 1780 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
1781 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
1782 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
1783 | 70 : 10, 0); |
1784 | } | |
1785 | wpa_s->eapol_received++; | |
1786 | ||
1787 | if (wpa_s->countermeasures) { | |
1788 | wpa_printf(MSG_INFO, "WPA: Countermeasures - dropped EAPOL " | |
1789 | "packet"); | |
1790 | return; | |
1791 | } | |
1792 | ||
8be18440 JM |
1793 | #ifdef CONFIG_IBSS_RSN |
1794 | if (wpa_s->current_ssid && | |
1795 | wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS) { | |
1796 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); | |
1797 | return; | |
1798 | } | |
1799 | #endif /* CONFIG_IBSS_RSN */ | |
1800 | ||
6fc6879b JM |
1801 | /* Source address of the incoming EAPOL frame could be compared to the |
1802 | * current BSSID. However, it is possible that a centralized | |
1803 | * Authenticator could be using another MAC address than the BSSID of | |
1804 | * an AP, so just allow any address to be used for now. The replies are | |
1805 | * still sent to the current BSSID (if available), though. */ | |
1806 | ||
1807 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 1808 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
1809 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
1810 | return; | |
1811 | wpa_drv_poll(wpa_s); | |
c2a04078 | 1812 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 1813 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 1814 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
1815 | /* |
1816 | * Set portValid = TRUE here since we are going to skip 4-way | |
1817 | * handshake processing which would normally set portValid. We | |
1818 | * need this to allow the EAPOL state machines to be completed | |
1819 | * without going through EAPOL-Key handshake. | |
1820 | */ | |
1821 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
1822 | } | |
1823 | } | |
1824 | ||
1825 | ||
6fc6879b JM |
1826 | void wpa_supplicant_sta_rx(void *ctx, const u8 *buf, size_t len, |
1827 | struct ieee80211_rx_status *rx_status) | |
1828 | { | |
1829 | struct wpa_supplicant *wpa_s = ctx; | |
1830 | ieee80211_sta_rx(wpa_s, buf, len, rx_status); | |
1831 | } | |
1832 | ||
1833 | ||
1834 | /** | |
1835 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
1836 | * @wpa_s: Pointer to wpa_supplicant data | |
1837 | * Returns: 0 on success, -1 on failure | |
1838 | * | |
1839 | * This function is called to initialize driver interface parameters. | |
1840 | * wpa_drv_init() must have been called before this function to initialize the | |
1841 | * driver interface. | |
1842 | */ | |
1843 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
1844 | { | |
1845 | static int interface_count = 0; | |
1846 | ||
1847 | if (wpa_s->driver->send_eapol) { | |
1848 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
1849 | if (addr) | |
1850 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
1851 | } else { | |
1852 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, | |
1853 | wpa_drv_get_mac_addr(wpa_s), | |
1854 | ETH_P_EAPOL, | |
1855 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
1856 | if (wpa_s->l2 == NULL) | |
1857 | return -1; | |
1858 | } | |
1859 | ||
1860 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
1861 | wpa_printf(MSG_ERROR, "Failed to get own L2 address"); | |
1862 | return -1; | |
1863 | } | |
1864 | ||
1865 | wpa_printf(MSG_DEBUG, "Own MAC address: " MACSTR, | |
1866 | MAC2STR(wpa_s->own_addr)); | |
1867 | ||
1868 | if (wpa_s->bridge_ifname[0]) { | |
1869 | wpa_printf(MSG_DEBUG, "Receiving packets from bridge interface" | |
1870 | " '%s'", wpa_s->bridge_ifname); | |
1871 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, | |
1872 | wpa_s->own_addr, | |
1873 | ETH_P_EAPOL, | |
1874 | wpa_supplicant_rx_eapol, wpa_s, | |
1875 | 0); | |
1876 | if (wpa_s->l2_br == NULL) { | |
1877 | wpa_printf(MSG_ERROR, "Failed to open l2_packet " | |
1878 | "connection for the bridge interface '%s'", | |
1879 | wpa_s->bridge_ifname); | |
1880 | return -1; | |
1881 | } | |
1882 | } | |
1883 | ||
6fc6879b JM |
1884 | wpa_clear_keys(wpa_s, NULL); |
1885 | ||
1886 | /* Make sure that TKIP countermeasures are not left enabled (could | |
1887 | * happen if wpa_supplicant is killed during countermeasures. */ | |
1888 | wpa_drv_set_countermeasures(wpa_s, 0); | |
1889 | ||
6fc6879b JM |
1890 | wpa_printf(MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
1891 | wpa_drv_flush_pmkid(wpa_s); | |
1892 | ||
ba2a573c | 1893 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
6fc6879b JM |
1894 | wpa_supplicant_req_scan(wpa_s, interface_count, 100000); |
1895 | interface_count++; | |
1896 | ||
1897 | return 0; | |
1898 | } | |
1899 | ||
1900 | ||
1901 | static int wpa_supplicant_daemon(const char *pid_file) | |
1902 | { | |
1903 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
1904 | return os_daemonize(pid_file); | |
1905 | } | |
1906 | ||
1907 | ||
1908 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
1909 | { | |
1910 | struct wpa_supplicant *wpa_s; | |
1911 | ||
1912 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
1913 | if (wpa_s == NULL) | |
1914 | return NULL; | |
1915 | wpa_s->scan_req = 1; | |
1916 | ||
1917 | return wpa_s; | |
1918 | } | |
1919 | ||
1920 | ||
1921 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
1922 | struct wpa_interface *iface) | |
1923 | { | |
362f781e JM |
1924 | const char *ifname, *driver; |
1925 | struct wpa_driver_capa capa; | |
1926 | ||
6fc6879b JM |
1927 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
1928 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
1929 | iface->confname ? iface->confname : "N/A", | |
1930 | iface->driver ? iface->driver : "default", | |
1931 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
1932 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
1933 | ||
6fc6879b JM |
1934 | if (iface->confname) { |
1935 | #ifdef CONFIG_BACKEND_FILE | |
1936 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
1937 | if (wpa_s->confname == NULL) { | |
1938 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
1939 | "for configuration file '%s'.", | |
1940 | iface->confname); | |
1941 | return -1; | |
1942 | } | |
1943 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
1944 | iface->confname, wpa_s->confname); | |
1945 | #else /* CONFIG_BACKEND_FILE */ | |
1946 | wpa_s->confname = os_strdup(iface->confname); | |
1947 | #endif /* CONFIG_BACKEND_FILE */ | |
1948 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
1949 | if (wpa_s->conf == NULL) { | |
1950 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
1951 | "configuration '%s'.", wpa_s->confname); | |
1952 | return -1; | |
1953 | } | |
1954 | ||
1955 | /* | |
1956 | * Override ctrl_interface and driver_param if set on command | |
1957 | * line. | |
1958 | */ | |
1959 | if (iface->ctrl_interface) { | |
1960 | os_free(wpa_s->conf->ctrl_interface); | |
1961 | wpa_s->conf->ctrl_interface = | |
1962 | os_strdup(iface->ctrl_interface); | |
1963 | } | |
1964 | ||
1965 | if (iface->driver_param) { | |
1966 | os_free(wpa_s->conf->driver_param); | |
1967 | wpa_s->conf->driver_param = | |
1968 | os_strdup(iface->driver_param); | |
1969 | } | |
1970 | } else | |
1971 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
1972 | iface->driver_param); | |
1973 | ||
1974 | if (wpa_s->conf == NULL) { | |
1975 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
1976 | return -1; | |
1977 | } | |
1978 | ||
1979 | if (iface->ifname == NULL) { | |
1980 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
1981 | return -1; | |
1982 | } | |
1983 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
1984 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
1985 | iface->ifname); | |
1986 | return -1; | |
1987 | } | |
1988 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
1989 | ||
1990 | if (iface->bridge_ifname) { | |
1991 | if (os_strlen(iface->bridge_ifname) >= | |
1992 | sizeof(wpa_s->bridge_ifname)) { | |
1993 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
1994 | "name '%s'.", iface->bridge_ifname); | |
1995 | return -1; | |
1996 | } | |
1997 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
1998 | sizeof(wpa_s->bridge_ifname)); | |
1999 | } | |
2000 | ||
6fc6879b JM |
2001 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2002 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2003 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2004 | ||
2005 | /* Initialize driver interface and register driver event handler before | |
2006 | * L2 receive handler so that association events are processed before | |
2007 | * EAPOL-Key packets if both become available for the same select() | |
2008 | * call. */ | |
362f781e JM |
2009 | driver = iface->driver; |
2010 | next_driver: | |
2011 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2012 | return -1; | |
2013 | ||
6fc6879b JM |
2014 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2015 | if (wpa_s->drv_priv == NULL) { | |
362f781e JM |
2016 | const char *pos; |
2017 | pos = os_strchr(driver, ','); | |
2018 | if (pos) { | |
2019 | wpa_printf(MSG_DEBUG, "Failed to initialize driver " | |
2020 | "interface - try next driver wrapper"); | |
2021 | driver = pos + 1; | |
2022 | goto next_driver; | |
2023 | } | |
6fc6879b JM |
2024 | wpa_printf(MSG_ERROR, "Failed to initialize driver interface"); |
2025 | return -1; | |
2026 | } | |
2027 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
2028 | wpa_printf(MSG_ERROR, "Driver interface rejected " | |
2029 | "driver_param '%s'", wpa_s->conf->driver_param); | |
2030 | return -1; | |
2031 | } | |
2032 | ||
2033 | ifname = wpa_drv_get_ifname(wpa_s); | |
2034 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
2035 | wpa_printf(MSG_DEBUG, "Driver interface replaced interface " | |
2036 | "name with '%s'", ifname); | |
2037 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); | |
2038 | } | |
2039 | ||
2040 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2041 | return -1; | |
2042 | ||
2043 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2044 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2045 | NULL); | |
2046 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2047 | ||
2048 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2049 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2050 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
2051 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2052 | "dot11RSNAConfigPMKLifetime"); | |
2053 | return -1; | |
2054 | } | |
2055 | ||
2056 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2057 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2058 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
2059 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2060 | "dot11RSNAConfigPMKReauthThreshold"); | |
2061 | return -1; | |
2062 | } | |
2063 | ||
2064 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2065 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2066 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
2067 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2068 | "dot11RSNAConfigSATimeout"); | |
2069 | return -1; | |
2070 | } | |
2071 | ||
2072 | if (wpa_supplicant_driver_init(wpa_s) < 0) | |
2073 | return -1; | |
2074 | ||
315ce40a JM |
2075 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2076 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
6d158490 LR |
2077 | wpa_printf(MSG_DEBUG, "Failed to set country"); |
2078 | return -1; | |
2079 | } | |
2080 | ||
6fc6879b JM |
2081 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
2082 | ||
116654ce JM |
2083 | if (wpas_wps_init(wpa_s)) |
2084 | return -1; | |
2085 | ||
6fc6879b JM |
2086 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2087 | return -1; | |
2088 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2089 | ||
2090 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2091 | if (wpa_s->ctrl_iface == NULL) { | |
2092 | wpa_printf(MSG_ERROR, | |
2093 | "Failed to initialize control interface '%s'.\n" | |
2094 | "You may have another wpa_supplicant process " | |
2095 | "already running or the file was\n" | |
2096 | "left by an unclean termination of wpa_supplicant " | |
2097 | "in which case you will need\n" | |
2098 | "to manually remove this file before starting " | |
2099 | "wpa_supplicant again.\n", | |
2100 | wpa_s->conf->ctrl_interface); | |
2101 | return -1; | |
2102 | } | |
2103 | ||
2104 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { | |
c2a04078 | 2105 | wpa_s->drv_flags = capa.flags; |
6fc6879b | 2106 | if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b JM |
2107 | if (ieee80211_sta_init(wpa_s)) |
2108 | return -1; | |
2109 | } | |
80bc75f1 | 2110 | wpa_s->max_scan_ssids = capa.max_scan_ssids; |
6fc6879b JM |
2111 | } |
2112 | ||
11ef8d35 JM |
2113 | #ifdef CONFIG_IBSS_RSN |
2114 | wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); | |
2115 | if (!wpa_s->ibss_rsn) { | |
2116 | wpa_printf(MSG_DEBUG, "Failed to init IBSS RSN"); | |
2117 | return -1; | |
2118 | } | |
2119 | #endif /* CONFIG_IBSS_RSN */ | |
2120 | ||
6fc6879b JM |
2121 | return 0; |
2122 | } | |
2123 | ||
2124 | ||
2125 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s) | |
2126 | { | |
2127 | if (wpa_s->drv_priv) { | |
2128 | wpa_supplicant_deauthenticate(wpa_s, | |
2129 | WLAN_REASON_DEAUTH_LEAVING); | |
2130 | ||
6fc6879b JM |
2131 | wpa_drv_set_countermeasures(wpa_s, 0); |
2132 | wpa_clear_keys(wpa_s, NULL); | |
2133 | } | |
2134 | ||
dc461de4 | 2135 | wpas_notify_iface_removed(wpa_s); |
6fc6879b JM |
2136 | |
2137 | wpa_supplicant_cleanup(wpa_s); | |
2138 | ||
2139 | if (wpa_s->drv_priv) | |
2140 | wpa_drv_deinit(wpa_s); | |
2141 | } | |
2142 | ||
2143 | ||
2144 | /** | |
2145 | * wpa_supplicant_add_iface - Add a new network interface | |
2146 | * @global: Pointer to global data from wpa_supplicant_init() | |
2147 | * @iface: Interface configuration options | |
2148 | * Returns: Pointer to the created interface or %NULL on failure | |
2149 | * | |
2150 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2151 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2152 | * main event loop has been started. In addition, new interfaces can be added | |
2153 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2154 | * e.g., when a hotplug network adapter is inserted. | |
2155 | */ | |
2156 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2157 | struct wpa_interface *iface) | |
2158 | { | |
2159 | struct wpa_supplicant *wpa_s; | |
d27df100 | 2160 | struct wpa_interface t_iface; |
6fc6879b JM |
2161 | |
2162 | if (global == NULL || iface == NULL) | |
2163 | return NULL; | |
2164 | ||
2165 | wpa_s = wpa_supplicant_alloc(); | |
2166 | if (wpa_s == NULL) | |
2167 | return NULL; | |
2168 | ||
d27df100 JM |
2169 | t_iface = *iface; |
2170 | if (global->params.override_driver) { | |
2171 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
2172 | "('%s' -> '%s')", | |
2173 | iface->driver, global->params.override_driver); | |
2174 | t_iface.driver = global->params.override_driver; | |
2175 | } | |
2176 | if (global->params.override_ctrl_interface) { | |
2177 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
2178 | "ctrl_interface ('%s' -> '%s')", | |
2179 | iface->ctrl_interface, | |
2180 | global->params.override_ctrl_interface); | |
2181 | t_iface.ctrl_interface = | |
2182 | global->params.override_ctrl_interface; | |
2183 | } | |
2184 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
2185 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2186 | iface->ifname); | |
2187 | wpa_supplicant_deinit_iface(wpa_s); | |
2188 | os_free(wpa_s); | |
2189 | return NULL; | |
2190 | } | |
2191 | ||
2192 | wpa_s->global = global; | |
2193 | ||
dc461de4 WS |
2194 | /* Notify the control interfaces about new iface */ |
2195 | if (wpas_notify_iface_added(wpa_s)) { | |
6fc6879b JM |
2196 | wpa_supplicant_deinit_iface(wpa_s); |
2197 | os_free(wpa_s); | |
2198 | return NULL; | |
2199 | } | |
1bd3f426 | 2200 | |
6fc6879b JM |
2201 | wpa_s->next = global->ifaces; |
2202 | global->ifaces = wpa_s; | |
2203 | ||
2204 | wpa_printf(MSG_DEBUG, "Added interface %s", wpa_s->ifname); | |
2205 | ||
2206 | return wpa_s; | |
2207 | } | |
2208 | ||
2209 | ||
2210 | /** | |
2211 | * wpa_supplicant_remove_iface - Remove a network interface | |
2212 | * @global: Pointer to global data from wpa_supplicant_init() | |
2213 | * @wpa_s: Pointer to the network interface to be removed | |
2214 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2215 | * | |
2216 | * This function can be used to dynamically remove network interfaces from | |
2217 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2218 | * addition, this function is used to remove all remaining interfaces when | |
2219 | * %wpa_supplicant is terminated. | |
2220 | */ | |
2221 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
2222 | struct wpa_supplicant *wpa_s) | |
2223 | { | |
2224 | struct wpa_supplicant *prev; | |
2225 | ||
2226 | /* Remove interface from the global list of interfaces */ | |
2227 | prev = global->ifaces; | |
2228 | if (prev == wpa_s) { | |
2229 | global->ifaces = wpa_s->next; | |
2230 | } else { | |
2231 | while (prev && prev->next != wpa_s) | |
2232 | prev = prev->next; | |
2233 | if (prev == NULL) | |
2234 | return -1; | |
2235 | prev->next = wpa_s->next; | |
2236 | } | |
2237 | ||
2238 | wpa_printf(MSG_DEBUG, "Removing interface %s", wpa_s->ifname); | |
2239 | ||
2240 | wpa_supplicant_deinit_iface(wpa_s); | |
2241 | os_free(wpa_s); | |
2242 | ||
2243 | return 0; | |
2244 | } | |
2245 | ||
2246 | ||
2247 | /** | |
2248 | * wpa_supplicant_get_iface - Get a new network interface | |
2249 | * @global: Pointer to global data from wpa_supplicant_init() | |
2250 | * @ifname: Interface name | |
2251 | * Returns: Pointer to the interface or %NULL if not found | |
2252 | */ | |
2253 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2254 | const char *ifname) | |
2255 | { | |
2256 | struct wpa_supplicant *wpa_s; | |
2257 | ||
2258 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2259 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2260 | return wpa_s; | |
2261 | } | |
2262 | return NULL; | |
2263 | } | |
2264 | ||
2265 | ||
2266 | /** | |
2267 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2268 | * @params: Parameters for %wpa_supplicant | |
2269 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2270 | * | |
2271 | * This function is used to initialize %wpa_supplicant. After successful | |
2272 | * initialization, the returned data pointer can be used to add and remove | |
2273 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2274 | */ | |
2275 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2276 | { | |
2277 | struct wpa_global *global; | |
ac305589 | 2278 | int ret, i; |
6fc6879b JM |
2279 | |
2280 | if (params == NULL) | |
2281 | return NULL; | |
2282 | ||
2283 | wpa_debug_open_file(params->wpa_debug_file_path); | |
daa70d49 SL |
2284 | if (params->wpa_debug_syslog) |
2285 | wpa_debug_open_syslog(); | |
6fc6879b JM |
2286 | |
2287 | ret = eap_peer_register_methods(); | |
2288 | if (ret) { | |
2289 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2290 | if (ret == -2) | |
2291 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2292 | "the same EAP type."); | |
2293 | return NULL; | |
2294 | } | |
2295 | ||
3ec97afe JM |
2296 | #ifdef CONFIG_AP |
2297 | ret = eap_server_register_methods(); | |
2298 | if (ret) { | |
2299 | wpa_printf(MSG_ERROR, "Failed to register EAP server methods"); | |
2300 | if (ret == -2) | |
2301 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2302 | "the same EAP type."); | |
2303 | return NULL; | |
2304 | } | |
2305 | #endif /* CONFIG_AP */ | |
2306 | ||
6fc6879b JM |
2307 | global = os_zalloc(sizeof(*global)); |
2308 | if (global == NULL) | |
2309 | return NULL; | |
2310 | global->params.daemonize = params->daemonize; | |
2311 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2312 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2313 | if (params->pid_file) | |
2314 | global->params.pid_file = os_strdup(params->pid_file); | |
2315 | if (params->ctrl_interface) | |
2316 | global->params.ctrl_interface = | |
2317 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
2318 | if (params->override_driver) |
2319 | global->params.override_driver = | |
2320 | os_strdup(params->override_driver); | |
2321 | if (params->override_ctrl_interface) | |
2322 | global->params.override_ctrl_interface = | |
2323 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
2324 | wpa_debug_level = global->params.wpa_debug_level = |
2325 | params->wpa_debug_level; | |
2326 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2327 | params->wpa_debug_show_keys; | |
2328 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2329 | params->wpa_debug_timestamp; | |
2330 | ||
2331 | if (eloop_init(global)) { | |
2332 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); | |
2333 | wpa_supplicant_deinit(global); | |
2334 | return NULL; | |
2335 | } | |
2336 | ||
2337 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); | |
2338 | if (global->ctrl_iface == NULL) { | |
2339 | wpa_supplicant_deinit(global); | |
2340 | return NULL; | |
2341 | } | |
2342 | ||
dc461de4 WS |
2343 | if (wpas_notify_supplicant_initialized(global)) { |
2344 | wpa_supplicant_deinit(global); | |
2345 | return NULL; | |
6fc6879b JM |
2346 | } |
2347 | ||
c5121837 | 2348 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2349 | global->drv_count++; |
2350 | if (global->drv_count == 0) { | |
2351 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2352 | wpa_supplicant_deinit(global); | |
2353 | return NULL; | |
2354 | } | |
2355 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2356 | if (global->drv_priv == NULL) { | |
2357 | wpa_supplicant_deinit(global); | |
2358 | return NULL; | |
2359 | } | |
c5121837 JM |
2360 | for (i = 0; wpa_drivers[i]; i++) { |
2361 | if (!wpa_drivers[i]->global_init) | |
ac305589 | 2362 | continue; |
c5121837 | 2363 | global->drv_priv[i] = wpa_drivers[i]->global_init(); |
ac305589 JM |
2364 | if (global->drv_priv[i] == NULL) { |
2365 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
c5121837 | 2366 | "'%s'", wpa_drivers[i]->name); |
ac305589 JM |
2367 | wpa_supplicant_deinit(global); |
2368 | return NULL; | |
2369 | } | |
2370 | } | |
2371 | ||
6fc6879b JM |
2372 | return global; |
2373 | } | |
2374 | ||
2375 | ||
2376 | /** | |
2377 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2378 | * @global: Pointer to global data from wpa_supplicant_init() | |
2379 | * Returns: 0 after successful event loop run, -1 on failure | |
2380 | * | |
2381 | * This function starts the main event loop and continues running as long as | |
2382 | * there are any remaining events. In most cases, this function is running as | |
2383 | * long as the %wpa_supplicant process in still in use. | |
2384 | */ | |
2385 | int wpa_supplicant_run(struct wpa_global *global) | |
2386 | { | |
2387 | struct wpa_supplicant *wpa_s; | |
2388 | ||
2389 | if (global->params.daemonize && | |
2390 | wpa_supplicant_daemon(global->params.pid_file)) | |
2391 | return -1; | |
2392 | ||
2393 | if (global->params.wait_for_monitor) { | |
2394 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2395 | if (wpa_s->ctrl_iface) | |
2396 | wpa_supplicant_ctrl_iface_wait( | |
2397 | wpa_s->ctrl_iface); | |
2398 | } | |
2399 | ||
2400 | eloop_register_signal_terminate(wpa_supplicant_terminate, NULL); | |
2401 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, NULL); | |
2402 | ||
2403 | eloop_run(); | |
2404 | ||
2405 | return 0; | |
2406 | } | |
2407 | ||
2408 | ||
2409 | /** | |
2410 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2411 | * @global: Pointer to global data from wpa_supplicant_init() | |
2412 | * | |
2413 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2414 | * allocated resources. Remaining network interfaces will also be removed. | |
2415 | */ | |
2416 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2417 | { | |
ac305589 JM |
2418 | int i; |
2419 | ||
6fc6879b JM |
2420 | if (global == NULL) |
2421 | return; | |
2422 | ||
2423 | while (global->ifaces) | |
2424 | wpa_supplicant_remove_iface(global, global->ifaces); | |
2425 | ||
2426 | if (global->ctrl_iface) | |
2427 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
2428 | |
2429 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
2430 | |
2431 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2432 | #ifdef CONFIG_AP |
2433 | eap_server_unregister_methods(); | |
2434 | #endif /* CONFIG_AP */ | |
6fc6879b | 2435 | |
c5121837 | 2436 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2437 | if (!global->drv_priv[i]) |
2438 | continue; | |
c5121837 | 2439 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2440 | } |
2441 | os_free(global->drv_priv); | |
2442 | ||
6fc6879b JM |
2443 | eloop_destroy(); |
2444 | ||
2445 | if (global->params.pid_file) { | |
2446 | os_daemonize_terminate(global->params.pid_file); | |
2447 | os_free(global->params.pid_file); | |
2448 | } | |
2449 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
2450 | os_free(global->params.override_driver); |
2451 | os_free(global->params.override_ctrl_interface); | |
6fc6879b JM |
2452 | |
2453 | os_free(global); | |
daa70d49 | 2454 | wpa_debug_close_syslog(); |
6fc6879b JM |
2455 | wpa_debug_close_file(); |
2456 | } |