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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant | |
dff0f701 | 3 | * Copyright (c) 2003-2010, 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" |
3acb5005 | 25 | #include "rsn_supp/wpa.h" |
6fc6879b | 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" |
3acb5005 JM |
34 | #include "rsn_supp/preauth.h" |
35 | #include "rsn_supp/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" |
83922c2d | 47 | #include "bss.h" |
9ba9fa07 | 48 | #include "scan.h" |
6fc6879b JM |
49 | |
50 | const char *wpa_supplicant_version = | |
51 | "wpa_supplicant v" VERSION_STR "\n" | |
dff0f701 | 52 | "Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
53 | |
54 | const char *wpa_supplicant_license = | |
55 | "This program is free software. You can distribute it and/or modify it\n" | |
56 | "under the terms of the GNU General Public License version 2.\n" | |
57 | "\n" | |
58 | "Alternatively, this software may be distributed under the terms of the\n" | |
59 | "BSD license. See README and COPYING for more details.\n" | |
60 | #ifdef EAP_TLS_OPENSSL | |
61 | "\nThis product includes software developed by the OpenSSL Project\n" | |
62 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
63 | #endif /* EAP_TLS_OPENSSL */ | |
64 | ; | |
65 | ||
66 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
67 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
68 | const char *wpa_supplicant_full_license1 = | |
69 | "This program is free software; you can redistribute it and/or modify\n" | |
70 | "it under the terms of the GNU General Public License version 2 as\n" | |
71 | "published by the Free Software Foundation.\n" | |
72 | "\n" | |
73 | "This program is distributed in the hope that it will be useful,\n" | |
74 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
75 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
76 | "GNU General Public License for more details.\n" | |
77 | "\n"; | |
78 | const char *wpa_supplicant_full_license2 = | |
79 | "You should have received a copy of the GNU General Public License\n" | |
80 | "along with this program; if not, write to the Free Software\n" | |
81 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
82 | "\n" | |
83 | "Alternatively, this software may be distributed under the terms of the\n" | |
84 | "BSD license.\n" | |
85 | "\n" | |
86 | "Redistribution and use in source and binary forms, with or without\n" | |
87 | "modification, are permitted provided that the following conditions are\n" | |
88 | "met:\n" | |
89 | "\n"; | |
90 | const char *wpa_supplicant_full_license3 = | |
91 | "1. Redistributions of source code must retain the above copyright\n" | |
92 | " notice, this list of conditions and the following disclaimer.\n" | |
93 | "\n" | |
94 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
95 | " notice, this list of conditions and the following disclaimer in the\n" | |
96 | " documentation and/or other materials provided with the distribution.\n" | |
97 | "\n"; | |
98 | const char *wpa_supplicant_full_license4 = | |
99 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
100 | " names of its contributors may be used to endorse or promote products\n" | |
101 | " derived from this software without specific prior written permission.\n" | |
102 | "\n" | |
103 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
104 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
105 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
106 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
107 | const char *wpa_supplicant_full_license5 = | |
108 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
109 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
110 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
111 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
112 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
113 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
114 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
115 | "\n"; | |
116 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
117 | ||
6fc6879b JM |
118 | extern int wpa_debug_level; |
119 | extern int wpa_debug_show_keys; | |
120 | extern int wpa_debug_timestamp; | |
c5121837 | 121 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
122 | |
123 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 124 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
125 | { |
126 | int i, set = 0; | |
127 | ||
128 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
129 | if (ssid->wep_key_len[i] == 0) | |
130 | continue; | |
131 | ||
132 | set = 1; | |
133 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, | |
134 | (u8 *) "\xff\xff\xff\xff\xff\xff", | |
135 | i, i == ssid->wep_tx_keyidx, (u8 *) "", 0, | |
136 | ssid->wep_key[i], ssid->wep_key_len[i]); | |
137 | } | |
138 | ||
139 | return set; | |
140 | } | |
141 | ||
142 | ||
143 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
144 | struct wpa_ssid *ssid) | |
145 | { | |
146 | u8 key[32]; | |
147 | size_t keylen; | |
71934751 | 148 | enum wpa_alg alg; |
6fc6879b JM |
149 | u8 seq[6] = { 0 }; |
150 | ||
151 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
152 | * sending unicast and multicast packets. */ | |
153 | ||
d7dcba70 | 154 | if (ssid->mode != WPAS_MODE_IBSS) { |
6fc6879b JM |
155 | wpa_printf(MSG_INFO, "WPA: Invalid mode %d (not IBSS/ad-hoc) " |
156 | "for WPA-None", ssid->mode); | |
157 | return -1; | |
158 | } | |
159 | ||
160 | if (!ssid->psk_set) { | |
161 | wpa_printf(MSG_INFO, "WPA: No PSK configured for WPA-None"); | |
162 | return -1; | |
163 | } | |
164 | ||
165 | switch (wpa_s->group_cipher) { | |
166 | case WPA_CIPHER_CCMP: | |
167 | os_memcpy(key, ssid->psk, 16); | |
168 | keylen = 16; | |
169 | alg = WPA_ALG_CCMP; | |
170 | break; | |
171 | case WPA_CIPHER_TKIP: | |
172 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
173 | os_memcpy(key, ssid->psk, 16 + 8); | |
174 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
175 | keylen = 32; | |
176 | alg = WPA_ALG_TKIP; | |
177 | break; | |
178 | default: | |
179 | wpa_printf(MSG_INFO, "WPA: Invalid group cipher %d for " | |
180 | "WPA-None", wpa_s->group_cipher); | |
181 | return -1; | |
182 | } | |
183 | ||
184 | /* TODO: should actually remember the previously used seq#, both for TX | |
185 | * and RX from each STA.. */ | |
186 | ||
187 | return wpa_drv_set_key(wpa_s, alg, (u8 *) "\xff\xff\xff\xff\xff\xff", | |
188 | 0, 1, seq, 6, key, keylen); | |
189 | } | |
190 | ||
191 | ||
192 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
193 | { | |
194 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
195 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 196 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
197 | bssid = wpa_s->pending_bssid; |
198 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
199 | MAC2STR(bssid)); | |
200 | wpa_blacklist_add(wpa_s, bssid); | |
201 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
202 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
203 | wpa_s->reassociate = 1; | |
204 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
205 | } | |
206 | ||
207 | ||
208 | /** | |
209 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
210 | * @wpa_s: Pointer to wpa_supplicant data | |
211 | * @sec: Number of seconds after which to time out authentication | |
212 | * @usec: Number of microseconds after which to time out authentication | |
213 | * | |
214 | * This function is used to schedule a timeout for the current authentication | |
215 | * attempt. | |
216 | */ | |
217 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
218 | int sec, int usec) | |
219 | { | |
c2a04078 JM |
220 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
221 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
222 | return; |
223 | ||
224 | wpa_msg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " | |
225 | "%d usec", sec, usec); | |
226 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
227 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
228 | } | |
229 | ||
230 | ||
231 | /** | |
232 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
233 | * @wpa_s: Pointer to wpa_supplicant data | |
234 | * | |
235 | * This function is used to cancel authentication timeout scheduled with | |
236 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
237 | * been completed. | |
238 | */ | |
239 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
240 | { | |
241 | wpa_msg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); | |
242 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
243 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
244 | } | |
245 | ||
246 | ||
247 | /** | |
248 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
249 | * @wpa_s: Pointer to wpa_supplicant data | |
250 | * | |
251 | * This function is used to configure EAPOL state machine based on the selected | |
252 | * authentication mode. | |
253 | */ | |
254 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
255 | { | |
256 | #ifdef IEEE8021X_EAPOL | |
257 | struct eapol_config eapol_conf; | |
258 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
259 | ||
53895c3b | 260 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 261 | if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
262 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
263 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
264 | /* | |
265 | * RSN IBSS authentication is per-STA and we can disable the | |
266 | * per-BSSID EAPOL authentication. | |
267 | */ | |
268 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
269 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
270 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
271 | return; | |
272 | } | |
273 | #endif /* CONFIG_IBSS_RSN */ | |
274 | ||
0a40ec6a JM |
275 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
276 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
277 | ||
6fc6879b JM |
278 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
279 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
280 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
281 | else | |
282 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
283 | ||
284 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
285 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
286 | eapol_conf.accept_802_1x_keys = 1; | |
287 | eapol_conf.required_keys = 0; | |
288 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
289 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
290 | } | |
291 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
292 | eapol_conf.required_keys |= | |
293 | EAPOL_REQUIRE_KEY_BROADCAST; | |
294 | } | |
295 | ||
c2a04078 | 296 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 297 | eapol_conf.required_keys = 0; |
6fc6879b JM |
298 | } |
299 | if (wpa_s->conf) | |
300 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
301 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
302 | eapol_conf.eap_disabled = |
303 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
304 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
305 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
306 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
307 | #endif /* IEEE8021X_EAPOL */ | |
308 | } | |
309 | ||
310 | ||
311 | /** | |
312 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
313 | * @wpa_s: Pointer to wpa_supplicant data | |
314 | * @ssid: Configuration data for the network | |
315 | * | |
316 | * This function is used to configure WPA state machine and related parameters | |
317 | * to a mode where WPA is not enabled. This is called as part of the | |
318 | * authentication configuration when the selected network does not use WPA. | |
319 | */ | |
320 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
321 | struct wpa_ssid *ssid) | |
322 | { | |
323 | int i; | |
324 | ||
ad08c363 JM |
325 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
326 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
327 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
328 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
329 | else | |
330 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
331 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
332 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
333 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
334 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
335 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
336 | wpa_s->mgmt_group_cipher = 0; | |
337 | ||
338 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
339 | if (ssid->wep_key_len[i] > 5) { | |
340 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
341 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
342 | break; | |
343 | } else if (ssid->wep_key_len[i] > 0) { | |
344 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
345 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
346 | break; | |
347 | } | |
348 | } | |
349 | ||
350 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
351 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
352 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
353 | wpa_s->pairwise_cipher); | |
354 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
355 | #ifdef CONFIG_IEEE80211W | |
356 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
357 | wpa_s->mgmt_group_cipher); | |
358 | #endif /* CONFIG_IEEE80211W */ | |
359 | ||
360 | pmksa_cache_clear_current(wpa_s->wpa); | |
361 | } | |
362 | ||
363 | ||
364 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
365 | { | |
60b94c98 | 366 | bgscan_deinit(wpa_s); |
6fc6879b JM |
367 | scard_deinit(wpa_s->scard); |
368 | wpa_s->scard = NULL; | |
369 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
370 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
371 | l2_packet_deinit(wpa_s->l2); | |
372 | wpa_s->l2 = NULL; | |
373 | if (wpa_s->l2_br) { | |
374 | l2_packet_deinit(wpa_s->l2_br); | |
375 | wpa_s->l2_br = NULL; | |
376 | } | |
377 | ||
378 | if (wpa_s->ctrl_iface) { | |
379 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
380 | wpa_s->ctrl_iface = NULL; | |
381 | } | |
382 | if (wpa_s->conf != NULL) { | |
8e56d189 JM |
383 | struct wpa_ssid *ssid; |
384 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
385 | wpas_notify_network_removed(wpa_s, ssid); | |
6fc6879b JM |
386 | wpa_config_free(wpa_s->conf); |
387 | wpa_s->conf = NULL; | |
388 | } | |
389 | ||
390 | os_free(wpa_s->confname); | |
391 | wpa_s->confname = NULL; | |
392 | ||
393 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
394 | eapol_sm_deinit(wpa_s->eapol); | |
395 | wpa_s->eapol = NULL; | |
396 | ||
397 | rsn_preauth_deinit(wpa_s->wpa); | |
398 | ||
399 | pmksa_candidate_free(wpa_s->wpa); | |
400 | wpa_sm_deinit(wpa_s->wpa); | |
401 | wpa_s->wpa = NULL; | |
402 | wpa_blacklist_clear(wpa_s); | |
403 | ||
83922c2d | 404 | wpa_bss_deinit(wpa_s); |
6fc6879b JM |
405 | |
406 | wpa_supplicant_cancel_scan(wpa_s); | |
407 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
408 | ||
409 | ieee80211_sta_deinit(wpa_s); | |
116654ce JM |
410 | |
411 | wpas_wps_deinit(wpa_s); | |
11ef8d35 | 412 | |
1ff73338 JM |
413 | wpabuf_free(wpa_s->pending_eapol_rx); |
414 | wpa_s->pending_eapol_rx = NULL; | |
415 | ||
11ef8d35 JM |
416 | #ifdef CONFIG_IBSS_RSN |
417 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
418 | wpa_s->ibss_rsn = NULL; | |
419 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 JM |
420 | |
421 | #ifdef CONFIG_SME | |
422 | os_free(wpa_s->sme.ft_ies); | |
423 | wpa_s->sme.ft_ies = NULL; | |
424 | wpa_s->sme.ft_ies_len = 0; | |
425 | #endif /* CONFIG_SME */ | |
2d5b792d JM |
426 | |
427 | #ifdef CONFIG_AP | |
428 | wpa_supplicant_ap_deinit(wpa_s); | |
429 | #endif /* CONFIG_AP */ | |
6fc6879b JM |
430 | } |
431 | ||
432 | ||
433 | /** | |
434 | * wpa_clear_keys - Clear keys configured for the driver | |
435 | * @wpa_s: Pointer to wpa_supplicant data | |
436 | * @addr: Previously used BSSID or %NULL if not available | |
437 | * | |
438 | * This function clears the encryption keys that has been previously configured | |
439 | * for the driver. | |
440 | */ | |
441 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
442 | { | |
443 | u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff"; | |
444 | ||
445 | if (wpa_s->keys_cleared) { | |
446 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
447 | * timing issues with keys being cleared just before new keys | |
448 | * are set or just after association or something similar. This | |
449 | * shows up in group key handshake failing often because of the | |
450 | * client not receiving the first encrypted packets correctly. | |
451 | * Skipping some of the extra key clearing steps seems to help | |
452 | * in completing group key handshake more reliably. */ | |
453 | wpa_printf(MSG_DEBUG, "No keys have been configured - " | |
454 | "skip key clearing"); | |
455 | return; | |
456 | } | |
457 | ||
458 | /* MLME-DELETEKEYS.request */ | |
459 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0); | |
460 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0); | |
461 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0); | |
462 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 MH |
463 | #ifdef CONFIG_IEEE80211W |
464 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 4, 0, NULL, 0, NULL, 0); | |
465 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 5, 0, NULL, 0, NULL, 0); | |
466 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
467 | if (addr) { |
468 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
469 | 0); | |
470 | /* MLME-SETPROTECTION.request(None) */ | |
471 | wpa_drv_mlme_setprotection( | |
472 | wpa_s, addr, | |
473 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
474 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
475 | } | |
476 | wpa_s->keys_cleared = 1; | |
477 | } | |
478 | ||
479 | ||
480 | /** | |
481 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
482 | * @state: State (wpa_state; WPA_*) | |
483 | * Returns: The state name as a printable text string | |
484 | */ | |
71934751 | 485 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
6fc6879b JM |
486 | { |
487 | switch (state) { | |
488 | case WPA_DISCONNECTED: | |
489 | return "DISCONNECTED"; | |
490 | case WPA_INACTIVE: | |
491 | return "INACTIVE"; | |
8401a6b0 JM |
492 | case WPA_INTERFACE_DISABLED: |
493 | return "INTERFACE_DISABLED"; | |
6fc6879b JM |
494 | case WPA_SCANNING: |
495 | return "SCANNING"; | |
c2a04078 JM |
496 | case WPA_AUTHENTICATING: |
497 | return "AUTHENTICATING"; | |
6fc6879b JM |
498 | case WPA_ASSOCIATING: |
499 | return "ASSOCIATING"; | |
500 | case WPA_ASSOCIATED: | |
501 | return "ASSOCIATED"; | |
502 | case WPA_4WAY_HANDSHAKE: | |
503 | return "4WAY_HANDSHAKE"; | |
504 | case WPA_GROUP_HANDSHAKE: | |
505 | return "GROUP_HANDSHAKE"; | |
506 | case WPA_COMPLETED: | |
507 | return "COMPLETED"; | |
508 | default: | |
509 | return "UNKNOWN"; | |
510 | } | |
511 | } | |
512 | ||
513 | ||
514 | /** | |
515 | * wpa_supplicant_set_state - Set current connection state | |
516 | * @wpa_s: Pointer to wpa_supplicant data | |
517 | * @state: The new connection state | |
518 | * | |
519 | * This function is called whenever the connection state changes, e.g., | |
520 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
521 | */ | |
71934751 JM |
522 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
523 | enum wpa_states state) | |
6fc6879b | 524 | { |
27f43d8d MH |
525 | enum wpa_states old_state = wpa_s->wpa_state; |
526 | ||
6fc6879b JM |
527 | wpa_printf(MSG_DEBUG, "State: %s -> %s", |
528 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
529 | wpa_supplicant_state_txt(state)); | |
530 | ||
cb8564b1 DW |
531 | if (state != WPA_SCANNING) |
532 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
533 | ||
6fc6879b JM |
534 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
535 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
536 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
537 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
538 | MACSTR " completed %s [id=%d id_str=%s]", | |
539 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
540 | "(reauth)" : "(auth)", | |
541 | ssid ? ssid->id : -1, | |
542 | ssid && ssid->id_str ? ssid->id_str : ""); | |
543 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
544 | wpa_s->new_connection = 0; | |
545 | wpa_s->reassociated_connection = 1; | |
546 | wpa_drv_set_operstate(wpa_s, 1); | |
17a4734d | 547 | wpa_s->after_wps = 0; |
6fc6879b JM |
548 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
549 | state == WPA_ASSOCIATED) { | |
550 | wpa_s->new_connection = 1; | |
551 | wpa_drv_set_operstate(wpa_s, 0); | |
552 | } | |
553 | wpa_s->wpa_state = state; | |
27f43d8d MH |
554 | |
555 | if (wpa_s->wpa_state != old_state) | |
556 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
557 | } |
558 | ||
559 | ||
1a1bf008 JM |
560 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
561 | { | |
562 | int pending = 0; | |
563 | #ifdef CONFIG_WPS | |
564 | struct wpa_supplicant *wpa_s = global->ifaces; | |
565 | while (wpa_s) { | |
566 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
567 | pending = 1; | |
568 | wpa_s = wpa_s->next; | |
569 | } | |
570 | #endif /* CONFIG_WPS */ | |
571 | if (pending) | |
572 | return; | |
573 | eloop_terminate(); | |
574 | } | |
575 | ||
576 | ||
0456ea16 | 577 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
6fc6879b | 578 | { |
0456ea16 | 579 | struct wpa_global *global = signal_ctx; |
6fc6879b JM |
580 | struct wpa_supplicant *wpa_s; |
581 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
582 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " | |
583 | "received", sig); | |
584 | } | |
1a1bf008 | 585 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
586 | } |
587 | ||
588 | ||
589 | static void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) | |
590 | { | |
71934751 | 591 | enum wpa_states old_state = wpa_s->wpa_state; |
27f43d8d | 592 | |
6fc6879b JM |
593 | wpa_s->pairwise_cipher = 0; |
594 | wpa_s->group_cipher = 0; | |
595 | wpa_s->mgmt_group_cipher = 0; | |
596 | wpa_s->key_mgmt = 0; | |
8401a6b0 JM |
597 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
598 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
27f43d8d MH |
599 | |
600 | if (wpa_s->wpa_state != old_state) | |
601 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
602 | } |
603 | ||
604 | ||
605 | /** | |
606 | * wpa_supplicant_reload_configuration - Reload configuration data | |
607 | * @wpa_s: Pointer to wpa_supplicant data | |
608 | * Returns: 0 on success or -1 if configuration parsing failed | |
609 | * | |
610 | * This function can be used to request that the configuration data is reloaded | |
611 | * (e.g., after configuration file change). This function is reloading | |
612 | * configuration only for one interface, so this may need to be called multiple | |
613 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
614 | * interfaces need reconfiguration. | |
615 | */ | |
616 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
617 | { | |
618 | struct wpa_config *conf; | |
8bac466b | 619 | struct wpa_ssid *old_ssid; |
6fc6879b | 620 | int reconf_ctrl; |
8bac466b JM |
621 | int old_ap_scan; |
622 | ||
6fc6879b JM |
623 | if (wpa_s->confname == NULL) |
624 | return -1; | |
625 | conf = wpa_config_read(wpa_s->confname); | |
626 | if (conf == NULL) { | |
627 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
628 | "file '%s' - exiting", wpa_s->confname); | |
629 | return -1; | |
630 | } | |
611aea7d | 631 | conf->changed_parameters = (unsigned int) -1; |
6fc6879b JM |
632 | |
633 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
634 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
635 | os_strcmp(conf->ctrl_interface, | |
636 | wpa_s->conf->ctrl_interface) != 0); | |
637 | ||
638 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
639 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
640 | wpa_s->ctrl_iface = NULL; | |
641 | } | |
642 | ||
643 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
8bac466b | 644 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 645 | wpa_s->current_ssid = NULL; |
8bac466b JM |
646 | if (old_ssid != wpa_s->current_ssid) |
647 | wpas_notify_network_changed(wpa_s); | |
648 | ||
6fc6879b JM |
649 | /* |
650 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
651 | * pkcs11_engine_path, pkcs11_module_path. | |
652 | */ | |
56586197 | 653 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
654 | /* |
655 | * Clear forced success to clear EAP state for next | |
656 | * authentication. | |
657 | */ | |
658 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
659 | } | |
660 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
661 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
662 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
663 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
664 | |
665 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
666 | wpa_config_free(wpa_s->conf); |
667 | wpa_s->conf = conf; | |
8bac466b JM |
668 | if (old_ap_scan != wpa_s->conf->ap_scan) |
669 | wpas_notify_ap_scan_changed(wpa_s); | |
670 | ||
6fc6879b JM |
671 | if (reconf_ctrl) |
672 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
673 | ||
611aea7d JM |
674 | wpa_supplicant_update_config(wpa_s); |
675 | ||
6fc6879b JM |
676 | wpa_supplicant_clear_status(wpa_s); |
677 | wpa_s->reassociate = 1; | |
678 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
679 | wpa_msg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); | |
680 | return 0; | |
681 | } | |
682 | ||
683 | ||
0456ea16 | 684 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
6fc6879b | 685 | { |
0456ea16 | 686 | struct wpa_global *global = signal_ctx; |
6fc6879b JM |
687 | struct wpa_supplicant *wpa_s; |
688 | wpa_printf(MSG_DEBUG, "Signal %d received - reconfiguring", sig); | |
689 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
690 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { | |
1a1bf008 | 691 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
692 | } |
693 | } | |
694 | } | |
695 | ||
696 | ||
508545f3 | 697 | enum wpa_cipher cipher_suite2driver(int cipher) |
6fc6879b JM |
698 | { |
699 | switch (cipher) { | |
700 | case WPA_CIPHER_NONE: | |
701 | return CIPHER_NONE; | |
702 | case WPA_CIPHER_WEP40: | |
703 | return CIPHER_WEP40; | |
704 | case WPA_CIPHER_WEP104: | |
705 | return CIPHER_WEP104; | |
706 | case WPA_CIPHER_CCMP: | |
707 | return CIPHER_CCMP; | |
708 | case WPA_CIPHER_TKIP: | |
709 | default: | |
710 | return CIPHER_TKIP; | |
711 | } | |
712 | } | |
713 | ||
714 | ||
508545f3 | 715 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
6fc6879b JM |
716 | { |
717 | switch (key_mgmt) { | |
718 | case WPA_KEY_MGMT_NONE: | |
719 | return KEY_MGMT_NONE; | |
720 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
721 | return KEY_MGMT_802_1X_NO_WPA; | |
722 | case WPA_KEY_MGMT_IEEE8021X: | |
723 | return KEY_MGMT_802_1X; | |
724 | case WPA_KEY_MGMT_WPA_NONE: | |
725 | return KEY_MGMT_WPA_NONE; | |
726 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
727 | return KEY_MGMT_FT_802_1X; | |
728 | case WPA_KEY_MGMT_FT_PSK: | |
729 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
730 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
731 | return KEY_MGMT_802_1X_SHA256; | |
732 | case WPA_KEY_MGMT_PSK_SHA256: | |
733 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
734 | case WPA_KEY_MGMT_WPS: |
735 | return KEY_MGMT_WPS; | |
6fc6879b JM |
736 | case WPA_KEY_MGMT_PSK: |
737 | default: | |
738 | return KEY_MGMT_PSK; | |
739 | } | |
740 | } | |
741 | ||
742 | ||
743 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
744 | struct wpa_ssid *ssid, | |
745 | struct wpa_ie_data *ie) | |
746 | { | |
747 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
748 | if (ret) { | |
749 | if (ret == -2) { | |
750 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
751 | "from association info"); | |
752 | } | |
753 | return -1; | |
754 | } | |
755 | ||
756 | wpa_printf(MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set cipher " | |
757 | "suites"); | |
758 | if (!(ie->group_cipher & ssid->group_cipher)) { | |
759 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
760 | "cipher 0x%x (mask 0x%x) - reject", | |
761 | ie->group_cipher, ssid->group_cipher); | |
762 | return -1; | |
763 | } | |
764 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
765 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
766 | "cipher 0x%x (mask 0x%x) - reject", | |
767 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
768 | return -1; | |
769 | } | |
770 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
771 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
772 | "management 0x%x (mask 0x%x) - reject", | |
773 | ie->key_mgmt, ssid->key_mgmt); | |
774 | return -1; | |
775 | } | |
776 | ||
777 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 778 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
70f8cc8e | 779 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
6fc6879b JM |
780 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
781 | "that does not support management frame protection - " | |
782 | "reject"); | |
783 | return -1; | |
784 | } | |
785 | #endif /* CONFIG_IEEE80211W */ | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
790 | ||
791 | /** | |
792 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
793 | * @wpa_s: Pointer to wpa_supplicant data | |
794 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
795 | * @ssid: Configuration data for the selected network | |
796 | * @wpa_ie: Buffer for the WPA/RSN IE | |
797 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
798 | * used buffer length in case the functions returns success. | |
799 | * Returns: 0 on success or -1 on failure | |
800 | * | |
801 | * This function is used to configure authentication and encryption parameters | |
802 | * based on the network configuration and scan result for the selected BSS (if | |
803 | * available). | |
804 | */ | |
805 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 806 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
6fc6879b JM |
807 | u8 *wpa_ie, size_t *wpa_ie_len) |
808 | { | |
809 | struct wpa_ie_data ie; | |
810 | int sel, proto; | |
811 | const u8 *bss_wpa, *bss_rsn; | |
812 | ||
813 | if (bss) { | |
6fa81a3b JM |
814 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
815 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
6fc6879b JM |
816 | } else |
817 | bss_wpa = bss_rsn = NULL; | |
818 | ||
819 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
820 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
821 | (ie.group_cipher & ssid->group_cipher) && | |
822 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
823 | (ie.key_mgmt & ssid->key_mgmt)) { | |
824 | wpa_msg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); | |
825 | proto = WPA_PROTO_RSN; | |
826 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
827 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
828 | (ie.group_cipher & ssid->group_cipher) && | |
829 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
830 | (ie.key_mgmt & ssid->key_mgmt)) { | |
831 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); | |
832 | proto = WPA_PROTO_WPA; | |
833 | } else if (bss) { | |
834 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
835 | return -1; | |
836 | } else { | |
837 | if (ssid->proto & WPA_PROTO_RSN) | |
838 | proto = WPA_PROTO_RSN; | |
839 | else | |
840 | proto = WPA_PROTO_WPA; | |
841 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
842 | os_memset(&ie, 0, sizeof(ie)); | |
843 | ie.group_cipher = ssid->group_cipher; | |
844 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
845 | ie.key_mgmt = ssid->key_mgmt; | |
846 | #ifdef CONFIG_IEEE80211W | |
847 | ie.mgmt_group_cipher = | |
70f8cc8e | 848 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
6fc6879b JM |
849 | WPA_CIPHER_AES_128_CMAC : 0; |
850 | #endif /* CONFIG_IEEE80211W */ | |
851 | wpa_printf(MSG_DEBUG, "WPA: Set cipher suites based " | |
852 | "on configuration"); | |
853 | } else | |
854 | proto = ie.proto; | |
855 | } | |
856 | ||
857 | wpa_printf(MSG_DEBUG, "WPA: Selected cipher suites: group %d " | |
858 | "pairwise %d key_mgmt %d proto %d", | |
859 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
860 | #ifdef CONFIG_IEEE80211W | |
861 | if (ssid->ieee80211w) { | |
862 | wpa_printf(MSG_DEBUG, "WPA: Selected mgmt group cipher %d", | |
863 | ie.mgmt_group_cipher); | |
864 | } | |
865 | #endif /* CONFIG_IEEE80211W */ | |
866 | ||
867 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); | |
868 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
869 | !!(ssid->proto & WPA_PROTO_RSN)); | |
870 | ||
871 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
872 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
873 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
874 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
875 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
876 | return -1; | |
877 | } | |
878 | ||
879 | sel = ie.group_cipher & ssid->group_cipher; | |
880 | if (sel & WPA_CIPHER_CCMP) { | |
881 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
882 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); | |
883 | } else if (sel & WPA_CIPHER_TKIP) { | |
884 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
885 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); | |
886 | } else if (sel & WPA_CIPHER_WEP104) { | |
887 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
888 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); | |
889 | } else if (sel & WPA_CIPHER_WEP40) { | |
890 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
891 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); | |
892 | } else { | |
893 | wpa_printf(MSG_WARNING, "WPA: Failed to select group cipher."); | |
894 | return -1; | |
895 | } | |
896 | ||
897 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
898 | if (sel & WPA_CIPHER_CCMP) { | |
899 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
900 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); | |
901 | } else if (sel & WPA_CIPHER_TKIP) { | |
902 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
903 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); | |
904 | } else if (sel & WPA_CIPHER_NONE) { | |
905 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
906 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); | |
907 | } else { | |
908 | wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " | |
909 | "cipher."); | |
910 | return -1; | |
911 | } | |
912 | ||
913 | sel = ie.key_mgmt & ssid->key_mgmt; | |
914 | if (0) { | |
915 | #ifdef CONFIG_IEEE80211R | |
916 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
917 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
918 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); | |
919 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { | |
920 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
921 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); | |
922 | #endif /* CONFIG_IEEE80211R */ | |
56586197 JM |
923 | #ifdef CONFIG_IEEE80211W |
924 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
925 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
926 | wpa_msg(wpa_s, MSG_DEBUG, | |
927 | "WPA: using KEY_MGMT 802.1X with SHA256"); | |
928 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
929 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
930 | wpa_msg(wpa_s, MSG_DEBUG, | |
931 | "WPA: using KEY_MGMT PSK with SHA256"); | |
932 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
933 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
934 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
935 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); | |
936 | } else if (sel & WPA_KEY_MGMT_PSK) { | |
937 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
938 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); | |
939 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { | |
940 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
941 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); | |
942 | } else { | |
943 | wpa_printf(MSG_WARNING, "WPA: Failed to select authenticated " | |
944 | "key management type."); | |
945 | return -1; | |
946 | } | |
947 | ||
948 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
949 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
950 | wpa_s->pairwise_cipher); | |
951 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
952 | ||
953 | #ifdef CONFIG_IEEE80211W | |
954 | sel = ie.mgmt_group_cipher; | |
70f8cc8e | 955 | if (ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION || |
0b60b0aa | 956 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
957 | sel = 0; |
958 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
959 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
960 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
961 | "AES-128-CMAC"); | |
962 | } else { | |
963 | wpa_s->mgmt_group_cipher = 0; | |
964 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); | |
965 | } | |
966 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
967 | wpa_s->mgmt_group_cipher); | |
e820cf95 | 968 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, ssid->ieee80211w); |
6fc6879b JM |
969 | #endif /* CONFIG_IEEE80211W */ |
970 | ||
971 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
972 | wpa_printf(MSG_WARNING, "WPA: Failed to generate WPA IE."); | |
973 | return -1; | |
974 | } | |
975 | ||
56586197 JM |
976 | if (ssid->key_mgmt & |
977 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256)) | |
6fc6879b JM |
978 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
979 | else | |
980 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
985 | ||
986 | /** | |
987 | * wpa_supplicant_associate - Request association | |
988 | * @wpa_s: Pointer to wpa_supplicant data | |
989 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
990 | * @ssid: Configuration data for the selected network | |
991 | * | |
992 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
993 | */ | |
994 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 995 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
6fc6879b JM |
996 | { |
997 | u8 wpa_ie[80]; | |
998 | size_t wpa_ie_len; | |
8bac466b | 999 | int use_crypt, ret, i, bssid_changed; |
abd9fafa | 1000 | int algs = WPA_AUTH_ALG_OPEN; |
71934751 | 1001 | enum wpa_cipher cipher_pairwise, cipher_group; |
6fc6879b JM |
1002 | struct wpa_driver_associate_params params; |
1003 | int wep_keys_set = 0; | |
1004 | struct wpa_driver_capa capa; | |
1005 | int assoc_failed = 0; | |
8bac466b | 1006 | struct wpa_ssid *old_ssid; |
6fc6879b | 1007 | |
d7dcba70 | 1008 | if (ssid->mode == WPAS_MODE_AP) { |
1581b38b JM |
1009 | #ifdef CONFIG_AP |
1010 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
1011 | wpa_printf(MSG_INFO, "Driver does not support AP " | |
1012 | "mode"); | |
1013 | return; | |
1014 | } | |
1015 | wpa_supplicant_create_ap(wpa_s, ssid); | |
8f770587 | 1016 | wpa_s->current_bss = bss; |
1581b38b JM |
1017 | #else /* CONFIG_AP */ |
1018 | wpa_printf(MSG_ERROR, "AP mode support not included in the " | |
1019 | "build"); | |
1020 | #endif /* CONFIG_AP */ | |
1021 | return; | |
1022 | } | |
1023 | ||
5cc4d64b JM |
1024 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
1025 | ssid->mode == IEEE80211_MODE_INFRA) { | |
c2a04078 JM |
1026 | sme_authenticate(wpa_s, bss, ssid); |
1027 | return; | |
1028 | } | |
1029 | ||
0c80427d | 1030 | os_memset(¶ms, 0, sizeof(params)); |
6fc6879b JM |
1031 | wpa_s->reassociate = 0; |
1032 | if (bss) { | |
1033 | #ifdef CONFIG_IEEE80211R | |
6fa81a3b | 1034 | const u8 *ie, *md = NULL; |
6fc6879b | 1035 | #endif /* CONFIG_IEEE80211R */ |
6fc6879b JM |
1036 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
1037 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
6fa81a3b | 1038 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
8bac466b | 1039 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1040 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1041 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1042 | if (bssid_changed) |
1043 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b | 1044 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1045 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
6fc6879b JM |
1046 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
1047 | md = ie + 2; | |
e7846b68 | 1048 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
91a05482 JM |
1049 | if (md) { |
1050 | /* Prepare for the next transition */ | |
76b7981d | 1051 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
91a05482 | 1052 | } |
6fc6879b | 1053 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1054 | #ifdef CONFIG_WPS |
1055 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1056 | wpa_s->conf->ap_scan == 2 && | |
1057 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1058 | /* Use ap_scan==1 style network selection to find the network | |
1059 | */ | |
1060 | wpa_s->scan_req = 2; | |
1061 | wpa_s->reassociate = 1; | |
1062 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1063 | return; | |
1064 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1065 | } else { |
1066 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1067 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1068 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1069 | } | |
1070 | wpa_supplicant_cancel_scan(wpa_s); | |
1071 | ||
1072 | /* Starting new association, so clear the possibly used WPA IE from the | |
1073 | * previous association. */ | |
1074 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1075 | ||
1076 | #ifdef IEEE8021X_EAPOL | |
1077 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1078 | if (ssid->leap) { | |
1079 | if (ssid->non_leap == 0) | |
abd9fafa | 1080 | algs = WPA_AUTH_ALG_LEAP; |
6fc6879b | 1081 | else |
abd9fafa | 1082 | algs |= WPA_AUTH_ALG_LEAP; |
6fc6879b JM |
1083 | } |
1084 | } | |
1085 | #endif /* IEEE8021X_EAPOL */ | |
1086 | wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); | |
1087 | if (ssid->auth_alg) { | |
abd9fafa | 1088 | algs = ssid->auth_alg; |
6fc6879b JM |
1089 | wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x", |
1090 | algs); | |
1091 | } | |
6fc6879b | 1092 | |
6fa81a3b JM |
1093 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
1094 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
6fc6879b JM |
1095 | (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK | |
1096 | WPA_KEY_MGMT_FT_IEEE8021X | | |
56586197 JM |
1097 | WPA_KEY_MGMT_FT_PSK | |
1098 | WPA_KEY_MGMT_IEEE8021X_SHA256 | | |
1099 | WPA_KEY_MGMT_PSK_SHA256))) { | |
6fc6879b JM |
1100 | int try_opportunistic; |
1101 | try_opportunistic = ssid->proactive_key_caching && | |
1102 | (ssid->proto & WPA_PROTO_RSN); | |
1103 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1104 | wpa_s->current_ssid, | |
1105 | try_opportunistic) == 0) | |
1106 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1107 | wpa_ie_len = sizeof(wpa_ie); | |
1108 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1109 | wpa_ie, &wpa_ie_len)) { | |
1110 | wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key " | |
1111 | "management and encryption suites"); | |
1112 | return; | |
1113 | } | |
1114 | } else if (ssid->key_mgmt & | |
1115 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | | |
1116 | WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK | | |
56586197 JM |
1117 | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 | |
1118 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { | |
6fc6879b JM |
1119 | wpa_ie_len = sizeof(wpa_ie); |
1120 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1121 | wpa_ie, &wpa_ie_len)) { | |
1122 | wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key " | |
1123 | "management and encryption suites (no scan " | |
1124 | "results)"); | |
1125 | return; | |
1126 | } | |
ad08c363 JM |
1127 | #ifdef CONFIG_WPS |
1128 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1129 | struct wpabuf *wps_ie; |
1130 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1131 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1132 | wpa_ie_len = wpabuf_len(wps_ie); | |
1133 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1134 | } else |
1135 | wpa_ie_len = 0; | |
ad08c363 JM |
1136 | wpabuf_free(wps_ie); |
1137 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
0c80427d JM |
1138 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
1139 | params.wps = WPS_MODE_PRIVACY; | |
1140 | else | |
1141 | params.wps = WPS_MODE_OPEN; | |
ad08c363 | 1142 | #endif /* CONFIG_WPS */ |
6fc6879b JM |
1143 | } else { |
1144 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1145 | wpa_ie_len = 0; | |
1146 | } | |
1147 | ||
1148 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); | |
1149 | use_crypt = 1; | |
1150 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1151 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1152 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1153 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1154 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1155 | use_crypt = 0; | |
1156 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1157 | use_crypt = 1; | |
1158 | wep_keys_set = 1; | |
1159 | } | |
1160 | } | |
ad08c363 JM |
1161 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1162 | use_crypt = 0; | |
6fc6879b JM |
1163 | |
1164 | #ifdef IEEE8021X_EAPOL | |
1165 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1166 | if ((ssid->eapol_flags & | |
1167 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1168 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1169 | !wep_keys_set) { | |
1170 | use_crypt = 0; | |
1171 | } else { | |
1172 | /* Assume that dynamic WEP-104 keys will be used and | |
1173 | * set cipher suites in order for drivers to expect | |
1174 | * encryption. */ | |
1175 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1176 | } | |
1177 | } | |
1178 | #endif /* IEEE8021X_EAPOL */ | |
1179 | ||
1180 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1181 | /* Set the key before (and later after) association */ | |
1182 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1183 | } | |
1184 | ||
6fc6879b | 1185 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
6fc6879b | 1186 | if (bss) { |
6fc6879b | 1187 | params.bssid = bss->bssid; |
6fa81a3b JM |
1188 | params.ssid = bss->ssid; |
1189 | params.ssid_len = bss->ssid_len; | |
6fc6879b JM |
1190 | params.freq = bss->freq; |
1191 | } else { | |
1192 | params.ssid = ssid->ssid; | |
1193 | params.ssid_len = ssid->ssid_len; | |
1194 | } | |
d7dcba70 JM |
1195 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
1196 | params.freq == 0) | |
6fc6879b JM |
1197 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
1198 | params.wpa_ie = wpa_ie; | |
1199 | params.wpa_ie_len = wpa_ie_len; | |
1200 | params.pairwise_suite = cipher_pairwise; | |
1201 | params.group_suite = cipher_group; | |
1202 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
1203 | params.auth_alg = algs; | |
1204 | params.mode = ssid->mode; | |
1205 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1206 | if (ssid->wep_key_len[i]) | |
1207 | params.wep_key[i] = ssid->wep_key[i]; | |
1208 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1209 | } | |
1210 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1211 | ||
c2a04078 | 1212 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1213 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1214 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1215 | params.passphrase = ssid->passphrase; | |
1216 | if (ssid->psk_set) | |
1217 | params.psk = ssid->psk; | |
1218 | } | |
1219 | ||
36b15723 JM |
1220 | params.drop_unencrypted = use_crypt; |
1221 | ||
6fc6879b | 1222 | #ifdef CONFIG_IEEE80211W |
70f8cc8e JM |
1223 | params.mgmt_frame_protection = ssid->ieee80211w; |
1224 | if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION && bss) { | |
6fa81a3b | 1225 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
97d3497e JM |
1226 | struct wpa_ie_data ie; |
1227 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1228 | ie.capabilities & | |
1229 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
1230 | wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: " | |
1231 | "require MFP"); | |
1232 | params.mgmt_frame_protection = | |
1233 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1234 | } | |
1235 | } | |
6fc6879b JM |
1236 | #endif /* CONFIG_IEEE80211W */ |
1237 | ||
c2a04078 | 1238 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1239 | ret = ieee80211_sta_associate(wpa_s, ¶ms); |
1240 | else | |
1241 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1242 | if (ret < 0) { | |
1243 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1244 | "failed"); | |
1245 | /* try to continue anyway; new association will be tried again | |
1246 | * after timeout */ | |
1247 | assoc_failed = 1; | |
1248 | } | |
1249 | ||
1250 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1251 | /* Set the key after the association just in case association | |
1252 | * cleared the previously configured key. */ | |
1253 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1254 | /* No need to timeout authentication since there is no key | |
1255 | * management. */ | |
1256 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1257 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b | 1258 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 1259 | } else if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
1260 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
1261 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
b9a2e577 | 1262 | ibss_rsn_set_psk(wpa_s->ibss_rsn, ssid->psk); |
53895c3b JM |
1263 | /* |
1264 | * RSN IBSS authentication is per-STA and we can disable the | |
1265 | * per-BSSID authentication. | |
1266 | */ | |
1267 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
53895c3b | 1268 | #endif /* CONFIG_IBSS_RSN */ |
6fc6879b JM |
1269 | } else { |
1270 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1271 | int timeout = 60; |
1272 | ||
1273 | if (assoc_failed) { | |
1274 | /* give IBSS a bit more time */ | |
d7dcba70 | 1275 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
1d3c75b3 DW |
1276 | } else if (wpa_s->conf->ap_scan == 1) { |
1277 | /* give IBSS a bit more time */ | |
d7dcba70 | 1278 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
1d3c75b3 | 1279 | } |
6fc6879b JM |
1280 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1281 | } | |
1282 | ||
1283 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1284 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1285 | /* Set static WEP keys again */ | |
1286 | wpa_set_wep_keys(wpa_s, ssid); | |
1287 | } | |
1288 | ||
1289 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1290 | /* | |
1291 | * Do not allow EAP session resumption between different | |
1292 | * network configurations. | |
1293 | */ | |
1294 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1295 | } | |
8bac466b | 1296 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 1297 | wpa_s->current_ssid = ssid; |
8f770587 | 1298 | wpa_s->current_bss = bss; |
6fc6879b JM |
1299 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
1300 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1301 | if (old_ssid != wpa_s->current_ssid) |
1302 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1303 | } |
1304 | ||
1305 | ||
09f58c09 JM |
1306 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
1307 | const u8 *addr) | |
1308 | { | |
1309 | struct wpa_ssid *old_ssid; | |
1310 | ||
1311 | wpa_clear_keys(wpa_s, addr); | |
1312 | wpa_supplicant_mark_disassoc(wpa_s); | |
1313 | old_ssid = wpa_s->current_ssid; | |
1314 | wpa_s->current_ssid = NULL; | |
1315 | wpa_s->current_bss = NULL; | |
1316 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1317 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1318 | if (old_ssid != wpa_s->current_ssid) | |
1319 | wpas_notify_network_changed(wpa_s); | |
1320 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1321 | } | |
1322 | ||
1323 | ||
6fc6879b JM |
1324 | /** |
1325 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1326 | * @wpa_s: Pointer to wpa_supplicant data | |
1327 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1328 | * | |
1329 | * This function is used to request %wpa_supplicant to disassociate with the | |
1330 | * current AP. | |
1331 | */ | |
1332 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1333 | int reason_code) | |
1334 | { | |
1335 | u8 *addr = NULL; | |
8bac466b | 1336 | |
a8e16edc | 1337 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1338 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1339 | ieee80211_sta_disassociate(wpa_s, reason_code); |
1340 | else | |
1341 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); | |
1342 | addr = wpa_s->bssid; | |
1343 | } | |
09f58c09 JM |
1344 | |
1345 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1346 | } |
1347 | ||
1348 | ||
1349 | /** | |
1350 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1351 | * @wpa_s: Pointer to wpa_supplicant data | |
1352 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1353 | * | |
073ab58f | 1354 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1355 | * current AP. |
1356 | */ | |
1357 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1358 | int reason_code) | |
1359 | { | |
1360 | u8 *addr = NULL; | |
8bac466b | 1361 | |
a8e16edc | 1362 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1363 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1364 | ieee80211_sta_deauthenticate(wpa_s, reason_code); |
1365 | else | |
1366 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, | |
1367 | reason_code); | |
1368 | addr = wpa_s->bssid; | |
1369 | } | |
09f58c09 JM |
1370 | |
1371 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1372 | } |
1373 | ||
1374 | ||
86b89452 WS |
1375 | /** |
1376 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1377 | * @wpa_s: wpa_supplicant structure for a network interface | |
1378 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1379 | * | |
1380 | * Enables the specified network or all networks if no network specified. | |
1381 | */ | |
1382 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1383 | struct wpa_ssid *ssid) | |
1384 | { | |
1385 | struct wpa_ssid *other_ssid; | |
1386 | int was_disabled; | |
1387 | ||
1388 | if (ssid == NULL) { | |
1389 | other_ssid = wpa_s->conf->ssid; | |
1390 | while (other_ssid) { | |
1391 | if (other_ssid == wpa_s->current_ssid && | |
1392 | other_ssid->disabled) | |
1393 | wpa_s->reassociate = 1; | |
1394 | ||
1395 | was_disabled = other_ssid->disabled; | |
1396 | ||
1397 | other_ssid->disabled = 0; | |
1398 | ||
1399 | if (was_disabled != other_ssid->disabled) | |
1400 | wpas_notify_network_enabled_changed( | |
1401 | wpa_s, other_ssid); | |
1402 | ||
1403 | other_ssid = other_ssid->next; | |
1404 | } | |
1405 | if (wpa_s->reassociate) | |
1406 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
adc8d4a7 KM |
1407 | } else if (ssid->disabled) { |
1408 | if (wpa_s->current_ssid == NULL) { | |
1409 | /* | |
1410 | * Try to reassociate since there is no current | |
1411 | * configuration and a new network was made available. | |
1412 | */ | |
1413 | wpa_s->reassociate = 1; | |
1414 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1415 | } | |
86b89452 WS |
1416 | |
1417 | was_disabled = ssid->disabled; | |
1418 | ||
1419 | ssid->disabled = 0; | |
1420 | ||
1421 | if (was_disabled != ssid->disabled) | |
1422 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1423 | } | |
1424 | } | |
1425 | ||
1426 | ||
1427 | /** | |
1428 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1429 | * @wpa_s: wpa_supplicant structure for a network interface | |
1430 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1431 | * | |
1432 | * Disables the specified network or all networks if no network specified. | |
1433 | */ | |
1434 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1435 | struct wpa_ssid *ssid) | |
1436 | { | |
1437 | struct wpa_ssid *other_ssid; | |
1438 | int was_disabled; | |
1439 | ||
1440 | if (ssid == NULL) { | |
1441 | other_ssid = wpa_s->conf->ssid; | |
1442 | while (other_ssid) { | |
1443 | was_disabled = other_ssid->disabled; | |
1444 | ||
1445 | other_ssid->disabled = 1; | |
1446 | ||
1447 | if (was_disabled != other_ssid->disabled) | |
1448 | wpas_notify_network_enabled_changed( | |
1449 | wpa_s, other_ssid); | |
1450 | ||
1451 | other_ssid = other_ssid->next; | |
1452 | } | |
1453 | if (wpa_s->current_ssid) | |
1454 | wpa_supplicant_disassociate( | |
1455 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1456 | } else { | |
1457 | if (ssid == wpa_s->current_ssid) | |
1458 | wpa_supplicant_disassociate( | |
1459 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1460 | ||
1461 | was_disabled = ssid->disabled; | |
1462 | ||
1463 | ssid->disabled = 1; | |
1464 | ||
1465 | if (was_disabled != ssid->disabled) | |
1466 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | ||
1471 | /** | |
1472 | * wpa_supplicant_select_network - Attempt association with a network | |
1473 | * @wpa_s: wpa_supplicant structure for a network interface | |
1474 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1475 | */ | |
1476 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1477 | struct wpa_ssid *ssid) | |
1478 | { | |
1479 | ||
1480 | struct wpa_ssid *other_ssid; | |
1481 | ||
1482 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) | |
1483 | wpa_supplicant_disassociate( | |
1484 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1485 | ||
1486 | /* | |
1487 | * Mark all other networks disabled or mark all networks enabled if no | |
1488 | * network specified. | |
1489 | */ | |
1490 | other_ssid = wpa_s->conf->ssid; | |
1491 | while (other_ssid) { | |
1492 | int was_disabled = other_ssid->disabled; | |
1493 | ||
1494 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1495 | ||
1496 | if (was_disabled != other_ssid->disabled) | |
1497 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
1498 | ||
1499 | other_ssid = other_ssid->next; | |
1500 | } | |
1501 | wpa_s->disconnected = 0; | |
1502 | wpa_s->reassociate = 1; | |
1503 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1504 | ||
a1641d26 JM |
1505 | if (ssid) |
1506 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1507 | } |
1508 | ||
1509 | ||
1510 | /** | |
1511 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1512 | * @wpa_s: wpa_supplicant structure for a network interface | |
1513 | * @ap_scan: AP scan mode | |
1514 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1515 | * | |
1516 | */ | |
1517 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1518 | { | |
1519 | ||
1520 | int old_ap_scan; | |
1521 | ||
1522 | if (ap_scan < 0 || ap_scan > 2) | |
1523 | return -1; | |
1524 | ||
1525 | old_ap_scan = wpa_s->conf->ap_scan; | |
1526 | wpa_s->conf->ap_scan = ap_scan; | |
1527 | ||
1528 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1529 | wpas_notify_ap_scan_changed(wpa_s); | |
1530 | ||
1531 | return 0; | |
1532 | } | |
1533 | ||
1534 | ||
1535 | /** | |
1536 | * wpa_supplicant_set_debug_params - Set global debug params | |
1537 | * @global: wpa_global structure | |
1538 | * @debug_level: debug level | |
1539 | * @debug_timestamp: determines if show timestamp in debug data | |
1540 | * @debug_show_keys: determines if show keys in debug data | |
1541 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1542 | */ | |
1543 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1544 | int debug_timestamp, int debug_show_keys) | |
1545 | { | |
1546 | ||
1547 | int old_level, old_timestamp, old_show_keys; | |
1548 | ||
1549 | /* check for allowed debuglevels */ | |
1550 | if (debug_level != MSG_MSGDUMP && | |
1551 | debug_level != MSG_DEBUG && | |
1552 | debug_level != MSG_INFO && | |
1553 | debug_level != MSG_WARNING && | |
1554 | debug_level != MSG_ERROR) | |
1555 | return -1; | |
1556 | ||
1557 | old_level = wpa_debug_level; | |
1558 | old_timestamp = wpa_debug_timestamp; | |
1559 | old_show_keys = wpa_debug_show_keys; | |
1560 | ||
1561 | wpa_debug_level = debug_level; | |
1562 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1563 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1564 | ||
db9133ac WS |
1565 | if (wpa_debug_level != old_level) |
1566 | wpas_notify_debug_level_changed(global); | |
1567 | if (wpa_debug_timestamp != old_timestamp) | |
1568 | wpas_notify_debug_timestamp_changed(global); | |
1569 | if (wpa_debug_show_keys != old_show_keys) | |
1570 | wpas_notify_debug_show_keys_changed(global); | |
86b89452 WS |
1571 | |
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | ||
6fc6879b JM |
1576 | /** |
1577 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1578 | * @wpa_s: Pointer to wpa_supplicant data | |
1579 | * Returns: A pointer to the current network structure or %NULL on failure | |
1580 | */ | |
1581 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1582 | { | |
1583 | struct wpa_ssid *entry; | |
1584 | u8 ssid[MAX_SSID_LEN]; | |
1585 | int res; | |
1586 | size_t ssid_len; | |
1587 | u8 bssid[ETH_ALEN]; | |
1588 | int wired; | |
1589 | ||
c2a04078 | 1590 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b JM |
1591 | if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) { |
1592 | wpa_printf(MSG_WARNING, "Could not read SSID from " | |
1593 | "MLME."); | |
1594 | return NULL; | |
1595 | } | |
1596 | } else { | |
1597 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
1598 | if (res < 0) { | |
1599 | wpa_printf(MSG_WARNING, "Could not read SSID from " | |
1600 | "driver."); | |
1601 | return NULL; | |
1602 | } | |
1603 | ssid_len = res; | |
1604 | } | |
1605 | ||
c2a04078 | 1606 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1607 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
1608 | else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
1609 | wpa_printf(MSG_WARNING, "Could not read BSSID from driver."); | |
1610 | return NULL; | |
1611 | } | |
1612 | ||
c2a04078 JM |
1613 | wired = wpa_s->conf->ap_scan == 0 && |
1614 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1615 | |
1616 | entry = wpa_s->conf->ssid; | |
1617 | while (entry) { | |
1618 | if (!entry->disabled && | |
1619 | ((ssid_len == entry->ssid_len && | |
1620 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1621 | (!entry->bssid_set || | |
1622 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1623 | return entry; | |
24c23d1b JM |
1624 | #ifdef CONFIG_WPS |
1625 | if (!entry->disabled && | |
1626 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1627 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1628 | (!entry->bssid_set || | |
1629 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1630 | return entry; | |
1631 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1632 | entry = entry->next; |
1633 | } | |
1634 | ||
1635 | return NULL; | |
1636 | } | |
1637 | ||
1638 | ||
1639 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
1640 | const char *name) | |
1641 | { | |
1642 | int i; | |
362f781e JM |
1643 | size_t len; |
1644 | const char *pos; | |
6fc6879b JM |
1645 | |
1646 | if (wpa_s == NULL) | |
1647 | return -1; | |
1648 | ||
c5121837 | 1649 | if (wpa_drivers[0] == NULL) { |
6fc6879b JM |
1650 | wpa_printf(MSG_ERROR, "No driver interfaces build into " |
1651 | "wpa_supplicant."); | |
1652 | return -1; | |
1653 | } | |
1654 | ||
1655 | if (name == NULL) { | |
1656 | /* default to first driver in the list */ | |
c5121837 | 1657 | wpa_s->driver = wpa_drivers[0]; |
8a5ab9f5 | 1658 | wpa_s->global_drv_priv = wpa_s->global->drv_priv[0]; |
6fc6879b JM |
1659 | return 0; |
1660 | } | |
1661 | ||
362f781e JM |
1662 | pos = os_strchr(name, ','); |
1663 | if (pos) | |
1664 | len = pos - name; | |
1665 | else | |
1666 | len = os_strlen(name); | |
c5121837 JM |
1667 | for (i = 0; wpa_drivers[i]; i++) { |
1668 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1669 | os_strncmp(name, wpa_drivers[i]->name, len) == | |
362f781e | 1670 | 0) { |
c5121837 | 1671 | wpa_s->driver = wpa_drivers[i]; |
8a5ab9f5 | 1672 | wpa_s->global_drv_priv = wpa_s->global->drv_priv[i]; |
6fc6879b JM |
1673 | return 0; |
1674 | } | |
1675 | } | |
1676 | ||
362f781e | 1677 | wpa_printf(MSG_ERROR, "Unsupported driver '%s'.", name); |
6fc6879b JM |
1678 | return -1; |
1679 | } | |
1680 | ||
1681 | ||
a8e0505b JM |
1682 | /** |
1683 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
1684 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
1685 | * with struct wpa_driver_ops::init() | |
1686 | * @src_addr: Source address of the EAPOL frame | |
1687 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
1688 | * @len: Length of the EAPOL data | |
1689 | * | |
1690 | * This function is called for each received EAPOL frame. Most driver | |
1691 | * interfaces rely on more generic OS mechanism for receiving frames through | |
1692 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
1693 | * take care of received EAPOL frames and deliver them to the core supplicant | |
1694 | * code by calling this function. | |
1695 | */ | |
6fc6879b JM |
1696 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
1697 | const u8 *buf, size_t len) | |
1698 | { | |
1699 | struct wpa_supplicant *wpa_s = ctx; | |
1700 | ||
1701 | wpa_printf(MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); | |
1702 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); | |
1703 | ||
1ff73338 JM |
1704 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1705 | /* | |
1706 | * There is possible race condition between receiving the | |
1707 | * association event and the EAPOL frame since they are coming | |
1708 | * through different paths from the driver. In order to avoid | |
1709 | * issues in trying to process the EAPOL frame before receiving | |
1710 | * association information, lets queue it for processing until | |
1711 | * the association event is received. | |
1712 | */ | |
1713 | wpa_printf(MSG_DEBUG, "Not associated - Delay processing of " | |
1714 | "received EAPOL frame"); | |
1715 | wpabuf_free(wpa_s->pending_eapol_rx); | |
1716 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1717 | if (wpa_s->pending_eapol_rx) { | |
1718 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1719 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1720 | ETH_ALEN); | |
1721 | } | |
1722 | return; | |
1723 | } | |
1724 | ||
db149ac9 JM |
1725 | #ifdef CONFIG_AP |
1726 | if (wpa_s->ap_iface) { | |
1727 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
1728 | return; | |
1729 | } | |
1730 | #endif /* CONFIG_AP */ | |
1731 | ||
6fc6879b JM |
1732 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
1733 | wpa_printf(MSG_DEBUG, "Ignored received EAPOL frame since " | |
1734 | "no key management is configured"); | |
1735 | return; | |
1736 | } | |
1737 | ||
1738 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 1739 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 1740 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
9c972abb JM |
1741 | wpa_s->wpa_state != WPA_COMPLETED) && |
1742 | (wpa_s->current_ssid == NULL || | |
1743 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
1744 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
1745 | wpa_supplicant_req_auth_timeout( | |
1746 | wpa_s, | |
56586197 | 1747 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
1748 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
1749 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
1750 | 70 : 10, 0); |
1751 | } | |
1752 | wpa_s->eapol_received++; | |
1753 | ||
1754 | if (wpa_s->countermeasures) { | |
1755 | wpa_printf(MSG_INFO, "WPA: Countermeasures - dropped EAPOL " | |
1756 | "packet"); | |
1757 | return; | |
1758 | } | |
1759 | ||
8be18440 JM |
1760 | #ifdef CONFIG_IBSS_RSN |
1761 | if (wpa_s->current_ssid && | |
d7dcba70 | 1762 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
8be18440 JM |
1763 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
1764 | return; | |
1765 | } | |
1766 | #endif /* CONFIG_IBSS_RSN */ | |
1767 | ||
6fc6879b JM |
1768 | /* Source address of the incoming EAPOL frame could be compared to the |
1769 | * current BSSID. However, it is possible that a centralized | |
1770 | * Authenticator could be using another MAC address than the BSSID of | |
1771 | * an AP, so just allow any address to be used for now. The replies are | |
1772 | * still sent to the current BSSID (if available), though. */ | |
1773 | ||
1774 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 1775 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
1776 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
1777 | return; | |
1778 | wpa_drv_poll(wpa_s); | |
c2a04078 | 1779 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 1780 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 1781 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
1782 | /* |
1783 | * Set portValid = TRUE here since we are going to skip 4-way | |
1784 | * handshake processing which would normally set portValid. We | |
1785 | * need this to allow the EAPOL state machines to be completed | |
1786 | * without going through EAPOL-Key handshake. | |
1787 | */ | |
1788 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
1789 | } | |
1790 | } | |
1791 | ||
1792 | ||
6fc6879b JM |
1793 | /** |
1794 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
1795 | * @wpa_s: Pointer to wpa_supplicant data | |
1796 | * Returns: 0 on success, -1 on failure | |
1797 | * | |
1798 | * This function is called to initialize driver interface parameters. | |
1799 | * wpa_drv_init() must have been called before this function to initialize the | |
1800 | * driver interface. | |
1801 | */ | |
1802 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
1803 | { | |
1804 | static int interface_count = 0; | |
1805 | ||
1806 | if (wpa_s->driver->send_eapol) { | |
1807 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
1808 | if (addr) | |
1809 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
1810 | } else { | |
1811 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, | |
1812 | wpa_drv_get_mac_addr(wpa_s), | |
1813 | ETH_P_EAPOL, | |
1814 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
1815 | if (wpa_s->l2 == NULL) | |
1816 | return -1; | |
1817 | } | |
1818 | ||
1819 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
1820 | wpa_printf(MSG_ERROR, "Failed to get own L2 address"); | |
1821 | return -1; | |
1822 | } | |
1823 | ||
1824 | wpa_printf(MSG_DEBUG, "Own MAC address: " MACSTR, | |
1825 | MAC2STR(wpa_s->own_addr)); | |
1826 | ||
1827 | if (wpa_s->bridge_ifname[0]) { | |
1828 | wpa_printf(MSG_DEBUG, "Receiving packets from bridge interface" | |
1829 | " '%s'", wpa_s->bridge_ifname); | |
1830 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, | |
1831 | wpa_s->own_addr, | |
1832 | ETH_P_EAPOL, | |
1833 | wpa_supplicant_rx_eapol, wpa_s, | |
1834 | 0); | |
1835 | if (wpa_s->l2_br == NULL) { | |
1836 | wpa_printf(MSG_ERROR, "Failed to open l2_packet " | |
1837 | "connection for the bridge interface '%s'", | |
1838 | wpa_s->bridge_ifname); | |
1839 | return -1; | |
1840 | } | |
1841 | } | |
1842 | ||
6fc6879b JM |
1843 | wpa_clear_keys(wpa_s, NULL); |
1844 | ||
1845 | /* Make sure that TKIP countermeasures are not left enabled (could | |
1846 | * happen if wpa_supplicant is killed during countermeasures. */ | |
1847 | wpa_drv_set_countermeasures(wpa_s, 0); | |
1848 | ||
6fc6879b JM |
1849 | wpa_printf(MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
1850 | wpa_drv_flush_pmkid(wpa_s); | |
1851 | ||
ba2a573c | 1852 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
74e259ec JM |
1853 | if (wpa_supplicant_enabled_networks(wpa_s->conf)) { |
1854 | wpa_supplicant_req_scan(wpa_s, interface_count, 100000); | |
1855 | interface_count++; | |
1856 | } else | |
1857 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
6fc6879b JM |
1858 | |
1859 | return 0; | |
1860 | } | |
1861 | ||
1862 | ||
1863 | static int wpa_supplicant_daemon(const char *pid_file) | |
1864 | { | |
1865 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
1866 | return os_daemonize(pid_file); | |
1867 | } | |
1868 | ||
1869 | ||
1870 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
1871 | { | |
1872 | struct wpa_supplicant *wpa_s; | |
1873 | ||
1874 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
1875 | if (wpa_s == NULL) | |
1876 | return NULL; | |
1877 | wpa_s->scan_req = 1; | |
c302f207 | 1878 | wpa_s->new_connection = 1; |
6fc6879b JM |
1879 | |
1880 | return wpa_s; | |
1881 | } | |
1882 | ||
1883 | ||
1884 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
1885 | struct wpa_interface *iface) | |
1886 | { | |
362f781e JM |
1887 | const char *ifname, *driver; |
1888 | struct wpa_driver_capa capa; | |
1889 | ||
6fc6879b JM |
1890 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
1891 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
1892 | iface->confname ? iface->confname : "N/A", | |
1893 | iface->driver ? iface->driver : "default", | |
1894 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
1895 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
1896 | ||
6fc6879b JM |
1897 | if (iface->confname) { |
1898 | #ifdef CONFIG_BACKEND_FILE | |
1899 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
1900 | if (wpa_s->confname == NULL) { | |
1901 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
1902 | "for configuration file '%s'.", | |
1903 | iface->confname); | |
1904 | return -1; | |
1905 | } | |
1906 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
1907 | iface->confname, wpa_s->confname); | |
1908 | #else /* CONFIG_BACKEND_FILE */ | |
1909 | wpa_s->confname = os_strdup(iface->confname); | |
1910 | #endif /* CONFIG_BACKEND_FILE */ | |
1911 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
1912 | if (wpa_s->conf == NULL) { | |
1913 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
1914 | "configuration '%s'.", wpa_s->confname); | |
1915 | return -1; | |
1916 | } | |
1917 | ||
1918 | /* | |
1919 | * Override ctrl_interface and driver_param if set on command | |
1920 | * line. | |
1921 | */ | |
1922 | if (iface->ctrl_interface) { | |
1923 | os_free(wpa_s->conf->ctrl_interface); | |
1924 | wpa_s->conf->ctrl_interface = | |
1925 | os_strdup(iface->ctrl_interface); | |
1926 | } | |
1927 | ||
1928 | if (iface->driver_param) { | |
1929 | os_free(wpa_s->conf->driver_param); | |
1930 | wpa_s->conf->driver_param = | |
1931 | os_strdup(iface->driver_param); | |
1932 | } | |
1933 | } else | |
1934 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
1935 | iface->driver_param); | |
1936 | ||
1937 | if (wpa_s->conf == NULL) { | |
1938 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
1939 | return -1; | |
1940 | } | |
1941 | ||
1942 | if (iface->ifname == NULL) { | |
1943 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
1944 | return -1; | |
1945 | } | |
1946 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
1947 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
1948 | iface->ifname); | |
1949 | return -1; | |
1950 | } | |
1951 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
1952 | ||
1953 | if (iface->bridge_ifname) { | |
1954 | if (os_strlen(iface->bridge_ifname) >= | |
1955 | sizeof(wpa_s->bridge_ifname)) { | |
1956 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
1957 | "name '%s'.", iface->bridge_ifname); | |
1958 | return -1; | |
1959 | } | |
1960 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
1961 | sizeof(wpa_s->bridge_ifname)); | |
1962 | } | |
1963 | ||
6fc6879b JM |
1964 | /* RSNA Supplicant Key Management - INITIALIZE */ |
1965 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
1966 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
1967 | ||
1968 | /* Initialize driver interface and register driver event handler before | |
1969 | * L2 receive handler so that association events are processed before | |
1970 | * EAPOL-Key packets if both become available for the same select() | |
1971 | * call. */ | |
362f781e JM |
1972 | driver = iface->driver; |
1973 | next_driver: | |
1974 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
1975 | return -1; | |
1976 | ||
6fc6879b JM |
1977 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
1978 | if (wpa_s->drv_priv == NULL) { | |
362f781e | 1979 | const char *pos; |
a5b9337f | 1980 | pos = driver ? os_strchr(driver, ',') : NULL; |
362f781e JM |
1981 | if (pos) { |
1982 | wpa_printf(MSG_DEBUG, "Failed to initialize driver " | |
1983 | "interface - try next driver wrapper"); | |
1984 | driver = pos + 1; | |
1985 | goto next_driver; | |
1986 | } | |
6fc6879b JM |
1987 | wpa_printf(MSG_ERROR, "Failed to initialize driver interface"); |
1988 | return -1; | |
1989 | } | |
1990 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
1991 | wpa_printf(MSG_ERROR, "Driver interface rejected " | |
1992 | "driver_param '%s'", wpa_s->conf->driver_param); | |
1993 | return -1; | |
1994 | } | |
1995 | ||
1996 | ifname = wpa_drv_get_ifname(wpa_s); | |
1997 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
1998 | wpa_printf(MSG_DEBUG, "Driver interface replaced interface " | |
1999 | "name with '%s'", ifname); | |
2000 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); | |
2001 | } | |
2002 | ||
2003 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2004 | return -1; | |
2005 | ||
2006 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2007 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2008 | NULL); | |
2009 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2010 | ||
2011 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2012 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2013 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
2014 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2015 | "dot11RSNAConfigPMKLifetime"); | |
2016 | return -1; | |
2017 | } | |
2018 | ||
2019 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2020 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2021 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
2022 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2023 | "dot11RSNAConfigPMKReauthThreshold"); | |
2024 | return -1; | |
2025 | } | |
2026 | ||
2027 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2028 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2029 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
2030 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2031 | "dot11RSNAConfigSATimeout"); | |
2032 | return -1; | |
2033 | } | |
2034 | ||
814782b9 JM |
2035 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
2036 | wpa_s->drv_flags = capa.flags; | |
2037 | if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { | |
2038 | if (ieee80211_sta_init(wpa_s)) | |
2039 | return -1; | |
2040 | } | |
2041 | wpa_s->max_scan_ssids = capa.max_scan_ssids; | |
2042 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; | |
2043 | } | |
2044 | if (wpa_s->max_remain_on_chan == 0) | |
2045 | wpa_s->max_remain_on_chan = 1000; | |
2046 | ||
6fc6879b JM |
2047 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
2048 | return -1; | |
2049 | ||
315ce40a JM |
2050 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2051 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
6d158490 LR |
2052 | wpa_printf(MSG_DEBUG, "Failed to set country"); |
2053 | return -1; | |
2054 | } | |
2055 | ||
6fc6879b JM |
2056 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
2057 | ||
116654ce JM |
2058 | if (wpas_wps_init(wpa_s)) |
2059 | return -1; | |
2060 | ||
6fc6879b JM |
2061 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2062 | return -1; | |
2063 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2064 | ||
2065 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2066 | if (wpa_s->ctrl_iface == NULL) { | |
2067 | wpa_printf(MSG_ERROR, | |
2068 | "Failed to initialize control interface '%s'.\n" | |
2069 | "You may have another wpa_supplicant process " | |
2070 | "already running or the file was\n" | |
2071 | "left by an unclean termination of wpa_supplicant " | |
2072 | "in which case you will need\n" | |
2073 | "to manually remove this file before starting " | |
2074 | "wpa_supplicant again.\n", | |
2075 | wpa_s->conf->ctrl_interface); | |
2076 | return -1; | |
2077 | } | |
2078 | ||
11ef8d35 JM |
2079 | #ifdef CONFIG_IBSS_RSN |
2080 | wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); | |
2081 | if (!wpa_s->ibss_rsn) { | |
2082 | wpa_printf(MSG_DEBUG, "Failed to init IBSS RSN"); | |
2083 | return -1; | |
2084 | } | |
2085 | #endif /* CONFIG_IBSS_RSN */ | |
2086 | ||
83922c2d JM |
2087 | if (wpa_bss_init(wpa_s) < 0) |
2088 | return -1; | |
83922c2d | 2089 | |
6fc6879b JM |
2090 | return 0; |
2091 | } | |
2092 | ||
2093 | ||
2ee055b3 JM |
2094 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
2095 | int notify) | |
6fc6879b JM |
2096 | { |
2097 | if (wpa_s->drv_priv) { | |
2098 | wpa_supplicant_deauthenticate(wpa_s, | |
2099 | WLAN_REASON_DEAUTH_LEAVING); | |
2100 | ||
6fc6879b JM |
2101 | wpa_drv_set_countermeasures(wpa_s, 0); |
2102 | wpa_clear_keys(wpa_s, NULL); | |
2103 | } | |
2104 | ||
8e56d189 JM |
2105 | wpa_supplicant_cleanup(wpa_s); |
2106 | ||
2ee055b3 JM |
2107 | if (notify) |
2108 | wpas_notify_iface_removed(wpa_s); | |
6fc6879b | 2109 | |
6fc6879b JM |
2110 | if (wpa_s->drv_priv) |
2111 | wpa_drv_deinit(wpa_s); | |
2112 | } | |
2113 | ||
2114 | ||
2115 | /** | |
2116 | * wpa_supplicant_add_iface - Add a new network interface | |
2117 | * @global: Pointer to global data from wpa_supplicant_init() | |
2118 | * @iface: Interface configuration options | |
2119 | * Returns: Pointer to the created interface or %NULL on failure | |
2120 | * | |
2121 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2122 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2123 | * main event loop has been started. In addition, new interfaces can be added | |
2124 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2125 | * e.g., when a hotplug network adapter is inserted. | |
2126 | */ | |
2127 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2128 | struct wpa_interface *iface) | |
2129 | { | |
2130 | struct wpa_supplicant *wpa_s; | |
d27df100 | 2131 | struct wpa_interface t_iface; |
8e56d189 | 2132 | struct wpa_ssid *ssid; |
6fc6879b JM |
2133 | |
2134 | if (global == NULL || iface == NULL) | |
2135 | return NULL; | |
2136 | ||
2137 | wpa_s = wpa_supplicant_alloc(); | |
2138 | if (wpa_s == NULL) | |
2139 | return NULL; | |
2140 | ||
d8222ae3 JM |
2141 | wpa_s->global = global; |
2142 | ||
d27df100 JM |
2143 | t_iface = *iface; |
2144 | if (global->params.override_driver) { | |
2145 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
2146 | "('%s' -> '%s')", | |
2147 | iface->driver, global->params.override_driver); | |
2148 | t_iface.driver = global->params.override_driver; | |
2149 | } | |
2150 | if (global->params.override_ctrl_interface) { | |
2151 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
2152 | "ctrl_interface ('%s' -> '%s')", | |
2153 | iface->ctrl_interface, | |
2154 | global->params.override_ctrl_interface); | |
2155 | t_iface.ctrl_interface = | |
2156 | global->params.override_ctrl_interface; | |
2157 | } | |
2158 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
2159 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2160 | iface->ifname); | |
2ee055b3 | 2161 | wpa_supplicant_deinit_iface(wpa_s, 0); |
6fc6879b JM |
2162 | os_free(wpa_s); |
2163 | return NULL; | |
2164 | } | |
2165 | ||
dc461de4 WS |
2166 | /* Notify the control interfaces about new iface */ |
2167 | if (wpas_notify_iface_added(wpa_s)) { | |
2ee055b3 | 2168 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2169 | os_free(wpa_s); |
2170 | return NULL; | |
2171 | } | |
1bd3f426 | 2172 | |
8e56d189 JM |
2173 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
2174 | wpas_notify_network_added(wpa_s, ssid); | |
2175 | ||
6fc6879b JM |
2176 | wpa_s->next = global->ifaces; |
2177 | global->ifaces = wpa_s; | |
2178 | ||
2179 | wpa_printf(MSG_DEBUG, "Added interface %s", wpa_s->ifname); | |
2180 | ||
2181 | return wpa_s; | |
2182 | } | |
2183 | ||
2184 | ||
2185 | /** | |
2186 | * wpa_supplicant_remove_iface - Remove a network interface | |
2187 | * @global: Pointer to global data from wpa_supplicant_init() | |
2188 | * @wpa_s: Pointer to the network interface to be removed | |
2189 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2190 | * | |
2191 | * This function can be used to dynamically remove network interfaces from | |
2192 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2193 | * addition, this function is used to remove all remaining interfaces when | |
2194 | * %wpa_supplicant is terminated. | |
2195 | */ | |
2196 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
2197 | struct wpa_supplicant *wpa_s) | |
2198 | { | |
2199 | struct wpa_supplicant *prev; | |
2200 | ||
2201 | /* Remove interface from the global list of interfaces */ | |
2202 | prev = global->ifaces; | |
2203 | if (prev == wpa_s) { | |
2204 | global->ifaces = wpa_s->next; | |
2205 | } else { | |
2206 | while (prev && prev->next != wpa_s) | |
2207 | prev = prev->next; | |
2208 | if (prev == NULL) | |
2209 | return -1; | |
2210 | prev->next = wpa_s->next; | |
2211 | } | |
2212 | ||
2213 | wpa_printf(MSG_DEBUG, "Removing interface %s", wpa_s->ifname); | |
2214 | ||
2ee055b3 | 2215 | wpa_supplicant_deinit_iface(wpa_s, 1); |
6fc6879b JM |
2216 | os_free(wpa_s); |
2217 | ||
2218 | return 0; | |
2219 | } | |
2220 | ||
2221 | ||
2222 | /** | |
2223 | * wpa_supplicant_get_iface - Get a new network interface | |
2224 | * @global: Pointer to global data from wpa_supplicant_init() | |
2225 | * @ifname: Interface name | |
2226 | * Returns: Pointer to the interface or %NULL if not found | |
2227 | */ | |
2228 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2229 | const char *ifname) | |
2230 | { | |
2231 | struct wpa_supplicant *wpa_s; | |
2232 | ||
2233 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2234 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2235 | return wpa_s; | |
2236 | } | |
2237 | return NULL; | |
2238 | } | |
2239 | ||
2240 | ||
2241 | /** | |
2242 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2243 | * @params: Parameters for %wpa_supplicant | |
2244 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2245 | * | |
2246 | * This function is used to initialize %wpa_supplicant. After successful | |
2247 | * initialization, the returned data pointer can be used to add and remove | |
2248 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2249 | */ | |
2250 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2251 | { | |
2252 | struct wpa_global *global; | |
ac305589 | 2253 | int ret, i; |
6fc6879b JM |
2254 | |
2255 | if (params == NULL) | |
2256 | return NULL; | |
2257 | ||
2258 | wpa_debug_open_file(params->wpa_debug_file_path); | |
daa70d49 SL |
2259 | if (params->wpa_debug_syslog) |
2260 | wpa_debug_open_syslog(); | |
6fc6879b | 2261 | |
12760815 | 2262 | ret = eap_register_methods(); |
6fc6879b JM |
2263 | if (ret) { |
2264 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2265 | if (ret == -2) | |
2266 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2267 | "the same EAP type."); | |
2268 | return NULL; | |
2269 | } | |
2270 | ||
2271 | global = os_zalloc(sizeof(*global)); | |
2272 | if (global == NULL) | |
2273 | return NULL; | |
2274 | global->params.daemonize = params->daemonize; | |
2275 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2276 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2277 | if (params->pid_file) | |
2278 | global->params.pid_file = os_strdup(params->pid_file); | |
2279 | if (params->ctrl_interface) | |
2280 | global->params.ctrl_interface = | |
2281 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
2282 | if (params->override_driver) |
2283 | global->params.override_driver = | |
2284 | os_strdup(params->override_driver); | |
2285 | if (params->override_ctrl_interface) | |
2286 | global->params.override_ctrl_interface = | |
2287 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
2288 | wpa_debug_level = global->params.wpa_debug_level = |
2289 | params->wpa_debug_level; | |
2290 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2291 | params->wpa_debug_show_keys; | |
2292 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2293 | params->wpa_debug_timestamp; | |
2294 | ||
0456ea16 | 2295 | if (eloop_init()) { |
6fc6879b JM |
2296 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
2297 | wpa_supplicant_deinit(global); | |
2298 | return NULL; | |
2299 | } | |
2300 | ||
2301 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); | |
2302 | if (global->ctrl_iface == NULL) { | |
2303 | wpa_supplicant_deinit(global); | |
2304 | return NULL; | |
2305 | } | |
2306 | ||
dc461de4 WS |
2307 | if (wpas_notify_supplicant_initialized(global)) { |
2308 | wpa_supplicant_deinit(global); | |
2309 | return NULL; | |
6fc6879b JM |
2310 | } |
2311 | ||
c5121837 | 2312 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2313 | global->drv_count++; |
2314 | if (global->drv_count == 0) { | |
2315 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2316 | wpa_supplicant_deinit(global); | |
2317 | return NULL; | |
2318 | } | |
2319 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2320 | if (global->drv_priv == NULL) { | |
2321 | wpa_supplicant_deinit(global); | |
2322 | return NULL; | |
2323 | } | |
c5121837 JM |
2324 | for (i = 0; wpa_drivers[i]; i++) { |
2325 | if (!wpa_drivers[i]->global_init) | |
ac305589 | 2326 | continue; |
c5121837 | 2327 | global->drv_priv[i] = wpa_drivers[i]->global_init(); |
ac305589 JM |
2328 | if (global->drv_priv[i] == NULL) { |
2329 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
c5121837 | 2330 | "'%s'", wpa_drivers[i]->name); |
ac305589 JM |
2331 | wpa_supplicant_deinit(global); |
2332 | return NULL; | |
2333 | } | |
2334 | } | |
2335 | ||
6fc6879b JM |
2336 | return global; |
2337 | } | |
2338 | ||
2339 | ||
2340 | /** | |
2341 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2342 | * @global: Pointer to global data from wpa_supplicant_init() | |
2343 | * Returns: 0 after successful event loop run, -1 on failure | |
2344 | * | |
2345 | * This function starts the main event loop and continues running as long as | |
2346 | * there are any remaining events. In most cases, this function is running as | |
2347 | * long as the %wpa_supplicant process in still in use. | |
2348 | */ | |
2349 | int wpa_supplicant_run(struct wpa_global *global) | |
2350 | { | |
2351 | struct wpa_supplicant *wpa_s; | |
2352 | ||
2353 | if (global->params.daemonize && | |
2354 | wpa_supplicant_daemon(global->params.pid_file)) | |
2355 | return -1; | |
2356 | ||
2357 | if (global->params.wait_for_monitor) { | |
2358 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2359 | if (wpa_s->ctrl_iface) | |
2360 | wpa_supplicant_ctrl_iface_wait( | |
2361 | wpa_s->ctrl_iface); | |
2362 | } | |
2363 | ||
0456ea16 JM |
2364 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
2365 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
6fc6879b JM |
2366 | |
2367 | eloop_run(); | |
2368 | ||
2369 | return 0; | |
2370 | } | |
2371 | ||
2372 | ||
2373 | /** | |
2374 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2375 | * @global: Pointer to global data from wpa_supplicant_init() | |
2376 | * | |
2377 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2378 | * allocated resources. Remaining network interfaces will also be removed. | |
2379 | */ | |
2380 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2381 | { | |
ac305589 JM |
2382 | int i; |
2383 | ||
6fc6879b JM |
2384 | if (global == NULL) |
2385 | return; | |
2386 | ||
2387 | while (global->ifaces) | |
2388 | wpa_supplicant_remove_iface(global, global->ifaces); | |
2389 | ||
2390 | if (global->ctrl_iface) | |
2391 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
2392 | |
2393 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
2394 | |
2395 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2396 | #ifdef CONFIG_AP |
2397 | eap_server_unregister_methods(); | |
2398 | #endif /* CONFIG_AP */ | |
6fc6879b | 2399 | |
c5121837 | 2400 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2401 | if (!global->drv_priv[i]) |
2402 | continue; | |
c5121837 | 2403 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2404 | } |
2405 | os_free(global->drv_priv); | |
2406 | ||
6fc6879b JM |
2407 | eloop_destroy(); |
2408 | ||
2409 | if (global->params.pid_file) { | |
2410 | os_daemonize_terminate(global->params.pid_file); | |
2411 | os_free(global->params.pid_file); | |
2412 | } | |
2413 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
2414 | os_free(global->params.override_driver); |
2415 | os_free(global->params.override_ctrl_interface); | |
6fc6879b JM |
2416 | |
2417 | os_free(global); | |
daa70d49 | 2418 | wpa_debug_close_syslog(); |
6fc6879b JM |
2419 | wpa_debug_close_file(); |
2420 | } | |
611aea7d JM |
2421 | |
2422 | ||
2423 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
2424 | { | |
2425 | #ifdef CONFIG_WPS | |
2426 | wpas_wps_update_config(wpa_s); | |
2427 | #endif /* CONFIG_WPS */ | |
2428 | ||
2429 | wpa_s->conf->changed_parameters = 0; | |
2430 | } |