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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant | |
6f78f2fb | 3 | * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi> |
6fc6879b JM |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * Alternatively, this software may be distributed under the terms of BSD | |
10 | * license. | |
11 | * | |
12 | * See README and COPYING for more details. | |
13 | * | |
14 | * This file implements functions for registering and unregistering | |
15 | * %wpa_supplicant interfaces. In addition, this file contains number of | |
16 | * functions for managing network connections. | |
17 | */ | |
18 | ||
19 | #include "includes.h" | |
20 | ||
21 | #include "common.h" | |
22 | #include "eapol_supp/eapol_supp_sm.h" | |
23 | #include "eap_peer/eap.h" | |
3ec97afe | 24 | #include "eap_server/eap_methods.h" |
6fc6879b JM |
25 | #include "wpa.h" |
26 | #include "eloop.h" | |
6fc6879b JM |
27 | #include "config.h" |
28 | #include "l2_packet/l2_packet.h" | |
29 | #include "wpa_supplicant_i.h" | |
2d5b792d | 30 | #include "driver_i.h" |
6fc6879b JM |
31 | #include "ctrl_iface.h" |
32 | #include "ctrl_iface_dbus.h" | |
33 | #include "pcsc_funcs.h" | |
34 | #include "version.h" | |
35 | #include "preauth.h" | |
36 | #include "pmksa_cache.h" | |
37 | #include "wpa_ctrl.h" | |
38 | #include "mlme.h" | |
39 | #include "ieee802_11_defs.h" | |
40 | #include "blacklist.h" | |
41 | #include "wpas_glue.h" | |
116654ce | 42 | #include "wps_supplicant.h" |
11ef8d35 | 43 | #include "ibss_rsn.h" |
c2a04078 | 44 | #include "sme.h" |
1f1b62a0 | 45 | #include "ap.h" |
8bac466b | 46 | #include "notify.h" |
6fc6879b JM |
47 | |
48 | const char *wpa_supplicant_version = | |
49 | "wpa_supplicant v" VERSION_STR "\n" | |
6f78f2fb | 50 | "Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
51 | |
52 | const char *wpa_supplicant_license = | |
53 | "This program is free software. You can distribute it and/or modify it\n" | |
54 | "under the terms of the GNU General Public License version 2.\n" | |
55 | "\n" | |
56 | "Alternatively, this software may be distributed under the terms of the\n" | |
57 | "BSD license. See README and COPYING for more details.\n" | |
58 | #ifdef EAP_TLS_OPENSSL | |
59 | "\nThis product includes software developed by the OpenSSL Project\n" | |
60 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
61 | #endif /* EAP_TLS_OPENSSL */ | |
62 | ; | |
63 | ||
64 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
65 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
66 | const char *wpa_supplicant_full_license1 = | |
67 | "This program is free software; you can redistribute it and/or modify\n" | |
68 | "it under the terms of the GNU General Public License version 2 as\n" | |
69 | "published by the Free Software Foundation.\n" | |
70 | "\n" | |
71 | "This program is distributed in the hope that it will be useful,\n" | |
72 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
73 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
74 | "GNU General Public License for more details.\n" | |
75 | "\n"; | |
76 | const char *wpa_supplicant_full_license2 = | |
77 | "You should have received a copy of the GNU General Public License\n" | |
78 | "along with this program; if not, write to the Free Software\n" | |
79 | "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
80 | "\n" | |
81 | "Alternatively, this software may be distributed under the terms of the\n" | |
82 | "BSD license.\n" | |
83 | "\n" | |
84 | "Redistribution and use in source and binary forms, with or without\n" | |
85 | "modification, are permitted provided that the following conditions are\n" | |
86 | "met:\n" | |
87 | "\n"; | |
88 | const char *wpa_supplicant_full_license3 = | |
89 | "1. Redistributions of source code must retain the above copyright\n" | |
90 | " notice, this list of conditions and the following disclaimer.\n" | |
91 | "\n" | |
92 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
93 | " notice, this list of conditions and the following disclaimer in the\n" | |
94 | " documentation and/or other materials provided with the distribution.\n" | |
95 | "\n"; | |
96 | const char *wpa_supplicant_full_license4 = | |
97 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
98 | " names of its contributors may be used to endorse or promote products\n" | |
99 | " derived from this software without specific prior written permission.\n" | |
100 | "\n" | |
101 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
102 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
103 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
104 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
105 | const char *wpa_supplicant_full_license5 = | |
106 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
107 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
108 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
109 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
110 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
111 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
112 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
113 | "\n"; | |
114 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
115 | ||
6fc6879b JM |
116 | extern int wpa_debug_level; |
117 | extern int wpa_debug_show_keys; | |
118 | extern int wpa_debug_timestamp; | |
c5121837 | 119 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
120 | |
121 | /* Configure default/group WEP keys for static WEP */ | |
122 | static int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, | |
123 | struct wpa_ssid *ssid) | |
124 | { | |
125 | int i, set = 0; | |
126 | ||
127 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
128 | if (ssid->wep_key_len[i] == 0) | |
129 | continue; | |
130 | ||
131 | set = 1; | |
132 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, | |
133 | (u8 *) "\xff\xff\xff\xff\xff\xff", | |
134 | i, i == ssid->wep_tx_keyidx, (u8 *) "", 0, | |
135 | ssid->wep_key[i], ssid->wep_key_len[i]); | |
136 | } | |
137 | ||
138 | return set; | |
139 | } | |
140 | ||
141 | ||
142 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
143 | struct wpa_ssid *ssid) | |
144 | { | |
145 | u8 key[32]; | |
146 | size_t keylen; | |
147 | wpa_alg alg; | |
148 | u8 seq[6] = { 0 }; | |
149 | ||
150 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
151 | * sending unicast and multicast packets. */ | |
152 | ||
153 | if (ssid->mode != IEEE80211_MODE_IBSS) { | |
154 | wpa_printf(MSG_INFO, "WPA: Invalid mode %d (not IBSS/ad-hoc) " | |
155 | "for WPA-None", ssid->mode); | |
156 | return -1; | |
157 | } | |
158 | ||
159 | if (!ssid->psk_set) { | |
160 | wpa_printf(MSG_INFO, "WPA: No PSK configured for WPA-None"); | |
161 | return -1; | |
162 | } | |
163 | ||
164 | switch (wpa_s->group_cipher) { | |
165 | case WPA_CIPHER_CCMP: | |
166 | os_memcpy(key, ssid->psk, 16); | |
167 | keylen = 16; | |
168 | alg = WPA_ALG_CCMP; | |
169 | break; | |
170 | case WPA_CIPHER_TKIP: | |
171 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
172 | os_memcpy(key, ssid->psk, 16 + 8); | |
173 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
174 | keylen = 32; | |
175 | alg = WPA_ALG_TKIP; | |
176 | break; | |
177 | default: | |
178 | wpa_printf(MSG_INFO, "WPA: Invalid group cipher %d for " | |
179 | "WPA-None", wpa_s->group_cipher); | |
180 | return -1; | |
181 | } | |
182 | ||
183 | /* TODO: should actually remember the previously used seq#, both for TX | |
184 | * and RX from each STA.. */ | |
185 | ||
186 | return wpa_drv_set_key(wpa_s, alg, (u8 *) "\xff\xff\xff\xff\xff\xff", | |
187 | 0, 1, seq, 6, key, keylen); | |
188 | } | |
189 | ||
190 | ||
191 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
192 | { | |
193 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
194 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 195 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
196 | bssid = wpa_s->pending_bssid; |
197 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
198 | MAC2STR(bssid)); | |
199 | wpa_blacklist_add(wpa_s, bssid); | |
200 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
201 | wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
202 | wpa_s->reassociate = 1; | |
203 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
204 | } | |
205 | ||
206 | ||
207 | /** | |
208 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
209 | * @wpa_s: Pointer to wpa_supplicant data | |
210 | * @sec: Number of seconds after which to time out authentication | |
211 | * @usec: Number of microseconds after which to time out authentication | |
212 | * | |
213 | * This function is used to schedule a timeout for the current authentication | |
214 | * attempt. | |
215 | */ | |
216 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
217 | int sec, int usec) | |
218 | { | |
c2a04078 JM |
219 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
220 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
221 | return; |
222 | ||
223 | wpa_msg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " | |
224 | "%d usec", sec, usec); | |
225 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
226 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
227 | } | |
228 | ||
229 | ||
230 | /** | |
231 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
232 | * @wpa_s: Pointer to wpa_supplicant data | |
233 | * | |
234 | * This function is used to cancel authentication timeout scheduled with | |
235 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
236 | * been completed. | |
237 | */ | |
238 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
239 | { | |
240 | wpa_msg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); | |
241 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
242 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
243 | } | |
244 | ||
245 | ||
246 | /** | |
247 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
248 | * @wpa_s: Pointer to wpa_supplicant data | |
249 | * | |
250 | * This function is used to configure EAPOL state machine based on the selected | |
251 | * authentication mode. | |
252 | */ | |
253 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
254 | { | |
255 | #ifdef IEEE8021X_EAPOL | |
256 | struct eapol_config eapol_conf; | |
257 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
258 | ||
53895c3b JM |
259 | #ifdef CONFIG_IBSS_RSN |
260 | if (ssid->mode == IEEE80211_MODE_IBSS && | |
261 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
262 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
263 | /* | |
264 | * RSN IBSS authentication is per-STA and we can disable the | |
265 | * per-BSSID EAPOL authentication. | |
266 | */ | |
267 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
268 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
269 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
270 | return; | |
271 | } | |
272 | #endif /* CONFIG_IBSS_RSN */ | |
273 | ||
0a40ec6a JM |
274 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
275 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
276 | ||
6fc6879b JM |
277 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
278 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
279 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
280 | else | |
281 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
282 | ||
283 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
284 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
285 | eapol_conf.accept_802_1x_keys = 1; | |
286 | eapol_conf.required_keys = 0; | |
287 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
288 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
289 | } | |
290 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
291 | eapol_conf.required_keys |= | |
292 | EAPOL_REQUIRE_KEY_BROADCAST; | |
293 | } | |
294 | ||
c2a04078 | 295 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 296 | eapol_conf.required_keys = 0; |
6fc6879b JM |
297 | } |
298 | if (wpa_s->conf) | |
299 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
300 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
301 | eapol_conf.eap_disabled = |
302 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
303 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
304 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
305 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
306 | #endif /* IEEE8021X_EAPOL */ | |
307 | } | |
308 | ||
309 | ||
310 | /** | |
311 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
312 | * @wpa_s: Pointer to wpa_supplicant data | |
313 | * @ssid: Configuration data for the network | |
314 | * | |
315 | * This function is used to configure WPA state machine and related parameters | |
316 | * to a mode where WPA is not enabled. This is called as part of the | |
317 | * authentication configuration when the selected network does not use WPA. | |
318 | */ | |
319 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
320 | struct wpa_ssid *ssid) | |
321 | { | |
322 | int i; | |
323 | ||
ad08c363 JM |
324 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
325 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
326 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
327 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
328 | else | |
329 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
330 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
331 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
332 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
333 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
334 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
335 | wpa_s->mgmt_group_cipher = 0; | |
336 | ||
337 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
338 | if (ssid->wep_key_len[i] > 5) { | |
339 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
340 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
341 | break; | |
342 | } else if (ssid->wep_key_len[i] > 0) { | |
343 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
344 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
345 | break; | |
346 | } | |
347 | } | |
348 | ||
349 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
350 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
351 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
352 | wpa_s->pairwise_cipher); | |
353 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
354 | #ifdef CONFIG_IEEE80211W | |
355 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
356 | wpa_s->mgmt_group_cipher); | |
357 | #endif /* CONFIG_IEEE80211W */ | |
358 | ||
359 | pmksa_cache_clear_current(wpa_s->wpa); | |
360 | } | |
361 | ||
362 | ||
363 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
364 | { | |
365 | scard_deinit(wpa_s->scard); | |
366 | wpa_s->scard = NULL; | |
367 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
368 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
369 | l2_packet_deinit(wpa_s->l2); | |
370 | wpa_s->l2 = NULL; | |
371 | if (wpa_s->l2_br) { | |
372 | l2_packet_deinit(wpa_s->l2_br); | |
373 | wpa_s->l2_br = NULL; | |
374 | } | |
375 | ||
376 | if (wpa_s->ctrl_iface) { | |
377 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
378 | wpa_s->ctrl_iface = NULL; | |
379 | } | |
380 | if (wpa_s->conf != NULL) { | |
381 | wpa_config_free(wpa_s->conf); | |
382 | wpa_s->conf = NULL; | |
383 | } | |
384 | ||
385 | os_free(wpa_s->confname); | |
386 | wpa_s->confname = NULL; | |
387 | ||
388 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
389 | eapol_sm_deinit(wpa_s->eapol); | |
390 | wpa_s->eapol = NULL; | |
391 | ||
392 | rsn_preauth_deinit(wpa_s->wpa); | |
393 | ||
394 | pmksa_candidate_free(wpa_s->wpa); | |
395 | wpa_sm_deinit(wpa_s->wpa); | |
396 | wpa_s->wpa = NULL; | |
397 | wpa_blacklist_clear(wpa_s); | |
398 | ||
399 | wpa_scan_results_free(wpa_s->scan_res); | |
400 | wpa_s->scan_res = NULL; | |
401 | ||
402 | wpa_supplicant_cancel_scan(wpa_s); | |
403 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
404 | ||
405 | ieee80211_sta_deinit(wpa_s); | |
116654ce JM |
406 | |
407 | wpas_wps_deinit(wpa_s); | |
11ef8d35 | 408 | |
1ff73338 JM |
409 | wpabuf_free(wpa_s->pending_eapol_rx); |
410 | wpa_s->pending_eapol_rx = NULL; | |
411 | ||
11ef8d35 JM |
412 | #ifdef CONFIG_IBSS_RSN |
413 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
414 | wpa_s->ibss_rsn = NULL; | |
415 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 JM |
416 | |
417 | #ifdef CONFIG_SME | |
418 | os_free(wpa_s->sme.ft_ies); | |
419 | wpa_s->sme.ft_ies = NULL; | |
420 | wpa_s->sme.ft_ies_len = 0; | |
421 | #endif /* CONFIG_SME */ | |
2d5b792d JM |
422 | |
423 | #ifdef CONFIG_AP | |
424 | wpa_supplicant_ap_deinit(wpa_s); | |
425 | #endif /* CONFIG_AP */ | |
6fc6879b JM |
426 | } |
427 | ||
428 | ||
429 | /** | |
430 | * wpa_clear_keys - Clear keys configured for the driver | |
431 | * @wpa_s: Pointer to wpa_supplicant data | |
432 | * @addr: Previously used BSSID or %NULL if not available | |
433 | * | |
434 | * This function clears the encryption keys that has been previously configured | |
435 | * for the driver. | |
436 | */ | |
437 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
438 | { | |
439 | u8 *bcast = (u8 *) "\xff\xff\xff\xff\xff\xff"; | |
440 | ||
441 | if (wpa_s->keys_cleared) { | |
442 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
443 | * timing issues with keys being cleared just before new keys | |
444 | * are set or just after association or something similar. This | |
445 | * shows up in group key handshake failing often because of the | |
446 | * client not receiving the first encrypted packets correctly. | |
447 | * Skipping some of the extra key clearing steps seems to help | |
448 | * in completing group key handshake more reliably. */ | |
449 | wpa_printf(MSG_DEBUG, "No keys have been configured - " | |
450 | "skip key clearing"); | |
451 | return; | |
452 | } | |
453 | ||
454 | /* MLME-DELETEKEYS.request */ | |
455 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 0, 0, NULL, 0, NULL, 0); | |
456 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0); | |
457 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0); | |
458 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0); | |
459 | if (addr) { | |
460 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
461 | 0); | |
462 | /* MLME-SETPROTECTION.request(None) */ | |
463 | wpa_drv_mlme_setprotection( | |
464 | wpa_s, addr, | |
465 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
466 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
467 | } | |
468 | wpa_s->keys_cleared = 1; | |
469 | } | |
470 | ||
471 | ||
472 | /** | |
473 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
474 | * @state: State (wpa_state; WPA_*) | |
475 | * Returns: The state name as a printable text string | |
476 | */ | |
477 | const char * wpa_supplicant_state_txt(int state) | |
478 | { | |
479 | switch (state) { | |
480 | case WPA_DISCONNECTED: | |
481 | return "DISCONNECTED"; | |
482 | case WPA_INACTIVE: | |
483 | return "INACTIVE"; | |
484 | case WPA_SCANNING: | |
485 | return "SCANNING"; | |
c2a04078 JM |
486 | case WPA_AUTHENTICATING: |
487 | return "AUTHENTICATING"; | |
6fc6879b JM |
488 | case WPA_ASSOCIATING: |
489 | return "ASSOCIATING"; | |
490 | case WPA_ASSOCIATED: | |
491 | return "ASSOCIATED"; | |
492 | case WPA_4WAY_HANDSHAKE: | |
493 | return "4WAY_HANDSHAKE"; | |
494 | case WPA_GROUP_HANDSHAKE: | |
495 | return "GROUP_HANDSHAKE"; | |
496 | case WPA_COMPLETED: | |
497 | return "COMPLETED"; | |
498 | default: | |
499 | return "UNKNOWN"; | |
500 | } | |
501 | } | |
502 | ||
503 | ||
504 | /** | |
505 | * wpa_supplicant_set_state - Set current connection state | |
506 | * @wpa_s: Pointer to wpa_supplicant data | |
507 | * @state: The new connection state | |
508 | * | |
509 | * This function is called whenever the connection state changes, e.g., | |
510 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
511 | */ | |
512 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state) | |
513 | { | |
514 | wpa_printf(MSG_DEBUG, "State: %s -> %s", | |
515 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
516 | wpa_supplicant_state_txt(state)); | |
517 | ||
cb8564b1 DW |
518 | if (state != WPA_SCANNING) |
519 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
520 | ||
8bac466b | 521 | wpas_notify_state_changed(wpa_s, state, wpa_s->wpa_state); |
6fc6879b JM |
522 | |
523 | if (state == WPA_COMPLETED && wpa_s->new_connection) { | |
524 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
525 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
526 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
527 | MACSTR " completed %s [id=%d id_str=%s]", | |
528 | MAC2STR(wpa_s->bssid), wpa_s->reassociated_connection ? | |
529 | "(reauth)" : "(auth)", | |
530 | ssid ? ssid->id : -1, | |
531 | ssid && ssid->id_str ? ssid->id_str : ""); | |
532 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
533 | wpa_s->new_connection = 0; | |
534 | wpa_s->reassociated_connection = 1; | |
535 | wpa_drv_set_operstate(wpa_s, 1); | |
536 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || | |
537 | state == WPA_ASSOCIATED) { | |
538 | wpa_s->new_connection = 1; | |
539 | wpa_drv_set_operstate(wpa_s, 0); | |
540 | } | |
541 | wpa_s->wpa_state = state; | |
542 | } | |
543 | ||
544 | ||
545 | static void wpa_supplicant_terminate(int sig, void *eloop_ctx, | |
546 | void *signal_ctx) | |
547 | { | |
548 | struct wpa_global *global = eloop_ctx; | |
549 | struct wpa_supplicant *wpa_s; | |
550 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
551 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING "- signal %d " | |
552 | "received", sig); | |
553 | } | |
554 | eloop_terminate(); | |
555 | } | |
556 | ||
557 | ||
558 | static void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) | |
559 | { | |
8bac466b | 560 | wpa_states old_state = wpa_s->wpa_state; |
6fc6879b JM |
561 | wpa_s->pairwise_cipher = 0; |
562 | wpa_s->group_cipher = 0; | |
563 | wpa_s->mgmt_group_cipher = 0; | |
564 | wpa_s->key_mgmt = 0; | |
565 | wpa_s->wpa_state = WPA_DISCONNECTED; | |
8bac466b | 566 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
6fc6879b JM |
567 | } |
568 | ||
569 | ||
570 | /** | |
571 | * wpa_supplicant_reload_configuration - Reload configuration data | |
572 | * @wpa_s: Pointer to wpa_supplicant data | |
573 | * Returns: 0 on success or -1 if configuration parsing failed | |
574 | * | |
575 | * This function can be used to request that the configuration data is reloaded | |
576 | * (e.g., after configuration file change). This function is reloading | |
577 | * configuration only for one interface, so this may need to be called multiple | |
578 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
579 | * interfaces need reconfiguration. | |
580 | */ | |
581 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
582 | { | |
583 | struct wpa_config *conf; | |
8bac466b | 584 | struct wpa_ssid *old_ssid; |
6fc6879b | 585 | int reconf_ctrl; |
8bac466b JM |
586 | int old_ap_scan; |
587 | ||
6fc6879b JM |
588 | if (wpa_s->confname == NULL) |
589 | return -1; | |
590 | conf = wpa_config_read(wpa_s->confname); | |
591 | if (conf == NULL) { | |
592 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
593 | "file '%s' - exiting", wpa_s->confname); | |
594 | return -1; | |
595 | } | |
596 | ||
597 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
598 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
599 | os_strcmp(conf->ctrl_interface, | |
600 | wpa_s->conf->ctrl_interface) != 0); | |
601 | ||
602 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
603 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
604 | wpa_s->ctrl_iface = NULL; | |
605 | } | |
606 | ||
607 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
8bac466b | 608 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 609 | wpa_s->current_ssid = NULL; |
8bac466b JM |
610 | if (old_ssid != wpa_s->current_ssid) |
611 | wpas_notify_network_changed(wpa_s); | |
612 | ||
6fc6879b JM |
613 | /* |
614 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
615 | * pkcs11_engine_path, pkcs11_module_path. | |
616 | */ | |
56586197 | 617 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
618 | /* |
619 | * Clear forced success to clear EAP state for next | |
620 | * authentication. | |
621 | */ | |
622 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
623 | } | |
624 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
625 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
626 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
627 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
628 | |
629 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
630 | wpa_config_free(wpa_s->conf); |
631 | wpa_s->conf = conf; | |
8bac466b JM |
632 | if (old_ap_scan != wpa_s->conf->ap_scan) |
633 | wpas_notify_ap_scan_changed(wpa_s); | |
634 | ||
6fc6879b JM |
635 | if (reconf_ctrl) |
636 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
637 | ||
638 | wpa_supplicant_clear_status(wpa_s); | |
639 | wpa_s->reassociate = 1; | |
640 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
641 | wpa_msg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); | |
642 | return 0; | |
643 | } | |
644 | ||
645 | ||
646 | static void wpa_supplicant_reconfig(int sig, void *eloop_ctx, | |
647 | void *signal_ctx) | |
648 | { | |
649 | struct wpa_global *global = eloop_ctx; | |
650 | struct wpa_supplicant *wpa_s; | |
651 | wpa_printf(MSG_DEBUG, "Signal %d received - reconfiguring", sig); | |
652 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
653 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { | |
654 | eloop_terminate(); | |
655 | } | |
656 | } | |
657 | } | |
658 | ||
659 | ||
660 | static wpa_cipher cipher_suite2driver(int cipher) | |
661 | { | |
662 | switch (cipher) { | |
663 | case WPA_CIPHER_NONE: | |
664 | return CIPHER_NONE; | |
665 | case WPA_CIPHER_WEP40: | |
666 | return CIPHER_WEP40; | |
667 | case WPA_CIPHER_WEP104: | |
668 | return CIPHER_WEP104; | |
669 | case WPA_CIPHER_CCMP: | |
670 | return CIPHER_CCMP; | |
671 | case WPA_CIPHER_TKIP: | |
672 | default: | |
673 | return CIPHER_TKIP; | |
674 | } | |
675 | } | |
676 | ||
677 | ||
678 | static wpa_key_mgmt key_mgmt2driver(int key_mgmt) | |
679 | { | |
680 | switch (key_mgmt) { | |
681 | case WPA_KEY_MGMT_NONE: | |
682 | return KEY_MGMT_NONE; | |
683 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
684 | return KEY_MGMT_802_1X_NO_WPA; | |
685 | case WPA_KEY_MGMT_IEEE8021X: | |
686 | return KEY_MGMT_802_1X; | |
687 | case WPA_KEY_MGMT_WPA_NONE: | |
688 | return KEY_MGMT_WPA_NONE; | |
689 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
690 | return KEY_MGMT_FT_802_1X; | |
691 | case WPA_KEY_MGMT_FT_PSK: | |
692 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
693 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
694 | return KEY_MGMT_802_1X_SHA256; | |
695 | case WPA_KEY_MGMT_PSK_SHA256: | |
696 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
697 | case WPA_KEY_MGMT_WPS: |
698 | return KEY_MGMT_WPS; | |
6fc6879b JM |
699 | case WPA_KEY_MGMT_PSK: |
700 | default: | |
701 | return KEY_MGMT_PSK; | |
702 | } | |
703 | } | |
704 | ||
705 | ||
706 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
707 | struct wpa_ssid *ssid, | |
708 | struct wpa_ie_data *ie) | |
709 | { | |
710 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
711 | if (ret) { | |
712 | if (ret == -2) { | |
713 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
714 | "from association info"); | |
715 | } | |
716 | return -1; | |
717 | } | |
718 | ||
719 | wpa_printf(MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set cipher " | |
720 | "suites"); | |
721 | if (!(ie->group_cipher & ssid->group_cipher)) { | |
722 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
723 | "cipher 0x%x (mask 0x%x) - reject", | |
724 | ie->group_cipher, ssid->group_cipher); | |
725 | return -1; | |
726 | } | |
727 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
728 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
729 | "cipher 0x%x (mask 0x%x) - reject", | |
730 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
731 | return -1; | |
732 | } | |
733 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
734 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
735 | "management 0x%x (mask 0x%x) - reject", | |
736 | ie->key_mgmt, ssid->key_mgmt); | |
737 | return -1; | |
738 | } | |
739 | ||
740 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 741 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
6fc6879b JM |
742 | ssid->ieee80211w == IEEE80211W_REQUIRED) { |
743 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " | |
744 | "that does not support management frame protection - " | |
745 | "reject"); | |
746 | return -1; | |
747 | } | |
748 | #endif /* CONFIG_IEEE80211W */ | |
749 | ||
750 | return 0; | |
751 | } | |
752 | ||
753 | ||
754 | /** | |
755 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
756 | * @wpa_s: Pointer to wpa_supplicant data | |
757 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
758 | * @ssid: Configuration data for the selected network | |
759 | * @wpa_ie: Buffer for the WPA/RSN IE | |
760 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
761 | * used buffer length in case the functions returns success. | |
762 | * Returns: 0 on success or -1 on failure | |
763 | * | |
764 | * This function is used to configure authentication and encryption parameters | |
765 | * based on the network configuration and scan result for the selected BSS (if | |
766 | * available). | |
767 | */ | |
768 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
769 | struct wpa_scan_res *bss, | |
770 | struct wpa_ssid *ssid, | |
771 | u8 *wpa_ie, size_t *wpa_ie_len) | |
772 | { | |
773 | struct wpa_ie_data ie; | |
774 | int sel, proto; | |
775 | const u8 *bss_wpa, *bss_rsn; | |
776 | ||
777 | if (bss) { | |
778 | bss_wpa = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
779 | bss_rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN); | |
780 | } else | |
781 | bss_wpa = bss_rsn = NULL; | |
782 | ||
783 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
784 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
785 | (ie.group_cipher & ssid->group_cipher) && | |
786 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
787 | (ie.key_mgmt & ssid->key_mgmt)) { | |
788 | wpa_msg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); | |
789 | proto = WPA_PROTO_RSN; | |
790 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
791 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
792 | (ie.group_cipher & ssid->group_cipher) && | |
793 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
794 | (ie.key_mgmt & ssid->key_mgmt)) { | |
795 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); | |
796 | proto = WPA_PROTO_WPA; | |
797 | } else if (bss) { | |
798 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
799 | return -1; | |
800 | } else { | |
801 | if (ssid->proto & WPA_PROTO_RSN) | |
802 | proto = WPA_PROTO_RSN; | |
803 | else | |
804 | proto = WPA_PROTO_WPA; | |
805 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
806 | os_memset(&ie, 0, sizeof(ie)); | |
807 | ie.group_cipher = ssid->group_cipher; | |
808 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
809 | ie.key_mgmt = ssid->key_mgmt; | |
810 | #ifdef CONFIG_IEEE80211W | |
811 | ie.mgmt_group_cipher = | |
812 | ssid->ieee80211w != NO_IEEE80211W ? | |
813 | WPA_CIPHER_AES_128_CMAC : 0; | |
814 | #endif /* CONFIG_IEEE80211W */ | |
815 | wpa_printf(MSG_DEBUG, "WPA: Set cipher suites based " | |
816 | "on configuration"); | |
817 | } else | |
818 | proto = ie.proto; | |
819 | } | |
820 | ||
821 | wpa_printf(MSG_DEBUG, "WPA: Selected cipher suites: group %d " | |
822 | "pairwise %d key_mgmt %d proto %d", | |
823 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
824 | #ifdef CONFIG_IEEE80211W | |
825 | if (ssid->ieee80211w) { | |
826 | wpa_printf(MSG_DEBUG, "WPA: Selected mgmt group cipher %d", | |
827 | ie.mgmt_group_cipher); | |
828 | } | |
829 | #endif /* CONFIG_IEEE80211W */ | |
830 | ||
831 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); | |
832 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
833 | !!(ssid->proto & WPA_PROTO_RSN)); | |
834 | ||
835 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
836 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
837 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
838 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
839 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
840 | return -1; | |
841 | } | |
842 | ||
843 | sel = ie.group_cipher & ssid->group_cipher; | |
844 | if (sel & WPA_CIPHER_CCMP) { | |
845 | wpa_s->group_cipher = WPA_CIPHER_CCMP; | |
846 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK CCMP"); | |
847 | } else if (sel & WPA_CIPHER_TKIP) { | |
848 | wpa_s->group_cipher = WPA_CIPHER_TKIP; | |
849 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK TKIP"); | |
850 | } else if (sel & WPA_CIPHER_WEP104) { | |
851 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
852 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP104"); | |
853 | } else if (sel & WPA_CIPHER_WEP40) { | |
854 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
855 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using GTK WEP40"); | |
856 | } else { | |
857 | wpa_printf(MSG_WARNING, "WPA: Failed to select group cipher."); | |
858 | return -1; | |
859 | } | |
860 | ||
861 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
862 | if (sel & WPA_CIPHER_CCMP) { | |
863 | wpa_s->pairwise_cipher = WPA_CIPHER_CCMP; | |
864 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK CCMP"); | |
865 | } else if (sel & WPA_CIPHER_TKIP) { | |
866 | wpa_s->pairwise_cipher = WPA_CIPHER_TKIP; | |
867 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK TKIP"); | |
868 | } else if (sel & WPA_CIPHER_NONE) { | |
869 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
870 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using PTK NONE"); | |
871 | } else { | |
872 | wpa_printf(MSG_WARNING, "WPA: Failed to select pairwise " | |
873 | "cipher."); | |
874 | return -1; | |
875 | } | |
876 | ||
877 | sel = ie.key_mgmt & ssid->key_mgmt; | |
878 | if (0) { | |
879 | #ifdef CONFIG_IEEE80211R | |
880 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
881 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
882 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); | |
883 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { | |
884 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
885 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); | |
886 | #endif /* CONFIG_IEEE80211R */ | |
56586197 JM |
887 | #ifdef CONFIG_IEEE80211W |
888 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
889 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
890 | wpa_msg(wpa_s, MSG_DEBUG, | |
891 | "WPA: using KEY_MGMT 802.1X with SHA256"); | |
892 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
893 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
894 | wpa_msg(wpa_s, MSG_DEBUG, | |
895 | "WPA: using KEY_MGMT PSK with SHA256"); | |
896 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
897 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
898 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
899 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); | |
900 | } else if (sel & WPA_KEY_MGMT_PSK) { | |
901 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
902 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); | |
903 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { | |
904 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
905 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); | |
906 | } else { | |
907 | wpa_printf(MSG_WARNING, "WPA: Failed to select authenticated " | |
908 | "key management type."); | |
909 | return -1; | |
910 | } | |
911 | ||
912 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
913 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
914 | wpa_s->pairwise_cipher); | |
915 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
916 | ||
917 | #ifdef CONFIG_IEEE80211W | |
918 | sel = ie.mgmt_group_cipher; | |
919 | if (ssid->ieee80211w == NO_IEEE80211W || | |
0b60b0aa | 920 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
921 | sel = 0; |
922 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
923 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
924 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
925 | "AES-128-CMAC"); | |
926 | } else { | |
927 | wpa_s->mgmt_group_cipher = 0; | |
928 | wpa_msg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); | |
929 | } | |
930 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
931 | wpa_s->mgmt_group_cipher); | |
932 | #endif /* CONFIG_IEEE80211W */ | |
933 | ||
934 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
935 | wpa_printf(MSG_WARNING, "WPA: Failed to generate WPA IE."); | |
936 | return -1; | |
937 | } | |
938 | ||
56586197 JM |
939 | if (ssid->key_mgmt & |
940 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_PSK_SHA256)) | |
6fc6879b JM |
941 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
942 | else | |
943 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); | |
944 | ||
945 | return 0; | |
946 | } | |
947 | ||
948 | ||
949 | /** | |
950 | * wpa_supplicant_associate - Request association | |
951 | * @wpa_s: Pointer to wpa_supplicant data | |
952 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
953 | * @ssid: Configuration data for the selected network | |
954 | * | |
955 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
956 | */ | |
957 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
958 | struct wpa_scan_res *bss, struct wpa_ssid *ssid) | |
959 | { | |
960 | u8 wpa_ie[80]; | |
961 | size_t wpa_ie_len; | |
8bac466b | 962 | int use_crypt, ret, i, bssid_changed; |
6fc6879b JM |
963 | int algs = AUTH_ALG_OPEN_SYSTEM; |
964 | wpa_cipher cipher_pairwise, cipher_group; | |
965 | struct wpa_driver_associate_params params; | |
966 | int wep_keys_set = 0; | |
967 | struct wpa_driver_capa capa; | |
968 | int assoc_failed = 0; | |
8bac466b | 969 | struct wpa_ssid *old_ssid; |
6fc6879b | 970 | |
1581b38b JM |
971 | if (ssid->mode == 2) { |
972 | #ifdef CONFIG_AP | |
973 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
974 | wpa_printf(MSG_INFO, "Driver does not support AP " | |
975 | "mode"); | |
976 | return; | |
977 | } | |
978 | wpa_supplicant_create_ap(wpa_s, ssid); | |
979 | #else /* CONFIG_AP */ | |
980 | wpa_printf(MSG_ERROR, "AP mode support not included in the " | |
981 | "build"); | |
982 | #endif /* CONFIG_AP */ | |
983 | return; | |
984 | } | |
985 | ||
c2a04078 JM |
986 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { |
987 | sme_authenticate(wpa_s, bss, ssid); | |
988 | return; | |
989 | } | |
990 | ||
6fc6879b JM |
991 | wpa_s->reassociate = 0; |
992 | if (bss) { | |
993 | #ifdef CONFIG_IEEE80211R | |
994 | const u8 *md = NULL; | |
995 | #endif /* CONFIG_IEEE80211R */ | |
996 | const u8 *ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); | |
997 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR | |
998 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
999 | ie ? wpa_ssid_txt(ie + 2, ie[1]) : "", bss->freq); | |
8bac466b | 1000 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1001 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1002 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1003 | if (bssid_changed) |
1004 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b JM |
1005 | #ifdef CONFIG_IEEE80211R |
1006 | ie = wpa_scan_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); | |
1007 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) | |
1008 | md = ie + 2; | |
1009 | wpa_sm_set_ft_params(wpa_s->wpa, md, NULL, 0, NULL); | |
91a05482 JM |
1010 | if (md) { |
1011 | /* Prepare for the next transition */ | |
1012 | wpa_ft_prepare_auth_request(wpa_s->wpa); | |
1013 | } | |
6fc6879b | 1014 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1015 | #ifdef CONFIG_WPS |
1016 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1017 | wpa_s->conf->ap_scan == 2 && | |
1018 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1019 | /* Use ap_scan==1 style network selection to find the network | |
1020 | */ | |
1021 | wpa_s->scan_req = 2; | |
1022 | wpa_s->reassociate = 1; | |
1023 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1024 | return; | |
1025 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1026 | } else { |
1027 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1028 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1029 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1030 | } | |
1031 | wpa_supplicant_cancel_scan(wpa_s); | |
1032 | ||
1033 | /* Starting new association, so clear the possibly used WPA IE from the | |
1034 | * previous association. */ | |
1035 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1036 | ||
ec5f180a DW |
1037 | if (wpa_drv_set_mode(wpa_s, ssid->mode)) { |
1038 | wpa_printf(MSG_WARNING, "Failed to set operating mode"); | |
1039 | assoc_failed = 1; | |
1040 | } | |
1041 | ||
6fc6879b JM |
1042 | #ifdef IEEE8021X_EAPOL |
1043 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1044 | if (ssid->leap) { | |
1045 | if (ssid->non_leap == 0) | |
1046 | algs = AUTH_ALG_LEAP; | |
1047 | else | |
1048 | algs |= AUTH_ALG_LEAP; | |
1049 | } | |
1050 | } | |
1051 | #endif /* IEEE8021X_EAPOL */ | |
1052 | wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); | |
1053 | if (ssid->auth_alg) { | |
1054 | algs = 0; | |
1055 | if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) | |
1056 | algs |= AUTH_ALG_OPEN_SYSTEM; | |
1057 | if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) | |
1058 | algs |= AUTH_ALG_SHARED_KEY; | |
1059 | if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) | |
1060 | algs |= AUTH_ALG_LEAP; | |
1061 | wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x", | |
1062 | algs); | |
1063 | } | |
1064 | wpa_drv_set_auth_alg(wpa_s, algs); | |
1065 | ||
1066 | if (bss && (wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || | |
1067 | wpa_scan_get_ie(bss, WLAN_EID_RSN)) && | |
1068 | (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK | | |
1069 | WPA_KEY_MGMT_FT_IEEE8021X | | |
56586197 JM |
1070 | WPA_KEY_MGMT_FT_PSK | |
1071 | WPA_KEY_MGMT_IEEE8021X_SHA256 | | |
1072 | WPA_KEY_MGMT_PSK_SHA256))) { | |
6fc6879b JM |
1073 | int try_opportunistic; |
1074 | try_opportunistic = ssid->proactive_key_caching && | |
1075 | (ssid->proto & WPA_PROTO_RSN); | |
1076 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1077 | wpa_s->current_ssid, | |
1078 | try_opportunistic) == 0) | |
1079 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1080 | wpa_ie_len = sizeof(wpa_ie); | |
1081 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1082 | wpa_ie, &wpa_ie_len)) { | |
1083 | wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key " | |
1084 | "management and encryption suites"); | |
1085 | return; | |
1086 | } | |
1087 | } else if (ssid->key_mgmt & | |
1088 | (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | | |
1089 | WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK | | |
56586197 JM |
1090 | WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 | |
1091 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { | |
6fc6879b JM |
1092 | wpa_ie_len = sizeof(wpa_ie); |
1093 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1094 | wpa_ie, &wpa_ie_len)) { | |
1095 | wpa_printf(MSG_WARNING, "WPA: Failed to set WPA key " | |
1096 | "management and encryption suites (no scan " | |
1097 | "results)"); | |
1098 | return; | |
1099 | } | |
ad08c363 JM |
1100 | #ifdef CONFIG_WPS |
1101 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1102 | struct wpabuf *wps_ie; |
1103 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1104 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1105 | wpa_ie_len = wpabuf_len(wps_ie); | |
1106 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1107 | } else |
1108 | wpa_ie_len = 0; | |
ad08c363 JM |
1109 | wpabuf_free(wps_ie); |
1110 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1111 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1112 | } else { |
1113 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1114 | wpa_ie_len = 0; | |
1115 | } | |
1116 | ||
1117 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); | |
1118 | use_crypt = 1; | |
1119 | cipher_pairwise = cipher_suite2driver(wpa_s->pairwise_cipher); | |
1120 | cipher_group = cipher_suite2driver(wpa_s->group_cipher); | |
1121 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1122 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1123 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1124 | use_crypt = 0; | |
1125 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1126 | use_crypt = 1; | |
1127 | wep_keys_set = 1; | |
1128 | } | |
1129 | } | |
ad08c363 JM |
1130 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1131 | use_crypt = 0; | |
6fc6879b JM |
1132 | |
1133 | #ifdef IEEE8021X_EAPOL | |
1134 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1135 | if ((ssid->eapol_flags & | |
1136 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1137 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1138 | !wep_keys_set) { | |
1139 | use_crypt = 0; | |
1140 | } else { | |
1141 | /* Assume that dynamic WEP-104 keys will be used and | |
1142 | * set cipher suites in order for drivers to expect | |
1143 | * encryption. */ | |
1144 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1145 | } | |
1146 | } | |
1147 | #endif /* IEEE8021X_EAPOL */ | |
1148 | ||
1149 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1150 | /* Set the key before (and later after) association */ | |
1151 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1152 | } | |
1153 | ||
1154 | wpa_drv_set_drop_unencrypted(wpa_s, use_crypt); | |
1155 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); | |
1156 | os_memset(¶ms, 0, sizeof(params)); | |
1157 | if (bss) { | |
1158 | const u8 *ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); | |
1159 | params.bssid = bss->bssid; | |
1160 | params.ssid = ie ? ie + 2 : (u8 *) ""; | |
1161 | params.ssid_len = ie ? ie[1] : 0; | |
1162 | params.freq = bss->freq; | |
1163 | } else { | |
1164 | params.ssid = ssid->ssid; | |
1165 | params.ssid_len = ssid->ssid_len; | |
1166 | } | |
1167 | if (ssid->mode == 1 && ssid->frequency > 0 && params.freq == 0) | |
1168 | params.freq = ssid->frequency; /* Initial channel for IBSS */ | |
1169 | params.wpa_ie = wpa_ie; | |
1170 | params.wpa_ie_len = wpa_ie_len; | |
1171 | params.pairwise_suite = cipher_pairwise; | |
1172 | params.group_suite = cipher_group; | |
1173 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
1174 | params.auth_alg = algs; | |
1175 | params.mode = ssid->mode; | |
1176 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1177 | if (ssid->wep_key_len[i]) | |
1178 | params.wep_key[i] = ssid->wep_key[i]; | |
1179 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1180 | } | |
1181 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1182 | ||
c2a04078 | 1183 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1184 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1185 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1186 | params.passphrase = ssid->passphrase; | |
1187 | if (ssid->psk_set) | |
1188 | params.psk = ssid->psk; | |
1189 | } | |
1190 | ||
36b15723 JM |
1191 | params.drop_unencrypted = use_crypt; |
1192 | ||
6fc6879b JM |
1193 | #ifdef CONFIG_IEEE80211W |
1194 | switch (ssid->ieee80211w) { | |
1195 | case NO_IEEE80211W: | |
1196 | params.mgmt_frame_protection = NO_MGMT_FRAME_PROTECTION; | |
1197 | break; | |
1198 | case IEEE80211W_OPTIONAL: | |
1199 | params.mgmt_frame_protection = MGMT_FRAME_PROTECTION_OPTIONAL; | |
1200 | break; | |
1201 | case IEEE80211W_REQUIRED: | |
1202 | params.mgmt_frame_protection = MGMT_FRAME_PROTECTION_REQUIRED; | |
1203 | break; | |
1204 | } | |
97d3497e JM |
1205 | if (ssid->ieee80211w != NO_IEEE80211W && bss) { |
1206 | const u8 *rsn = wpa_scan_get_ie(bss, WLAN_EID_RSN); | |
1207 | struct wpa_ie_data ie; | |
1208 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1209 | ie.capabilities & | |
1210 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
1211 | wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: " | |
1212 | "require MFP"); | |
1213 | params.mgmt_frame_protection = | |
1214 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1215 | } | |
1216 | } | |
6fc6879b JM |
1217 | #endif /* CONFIG_IEEE80211W */ |
1218 | ||
c2a04078 | 1219 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1220 | ret = ieee80211_sta_associate(wpa_s, ¶ms); |
1221 | else | |
1222 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1223 | if (ret < 0) { | |
1224 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1225 | "failed"); | |
1226 | /* try to continue anyway; new association will be tried again | |
1227 | * after timeout */ | |
1228 | assoc_failed = 1; | |
1229 | } | |
1230 | ||
1231 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1232 | /* Set the key after the association just in case association | |
1233 | * cleared the previously configured key. */ | |
1234 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1235 | /* No need to timeout authentication since there is no key | |
1236 | * management. */ | |
1237 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1238 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b JM |
1239 | #ifdef CONFIG_IBSS_RSN |
1240 | } else if (ssid->mode == IEEE80211_MODE_IBSS && | |
1241 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
1242 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
b9a2e577 | 1243 | ibss_rsn_set_psk(wpa_s->ibss_rsn, ssid->psk); |
53895c3b JM |
1244 | /* |
1245 | * RSN IBSS authentication is per-STA and we can disable the | |
1246 | * per-BSSID authentication. | |
1247 | */ | |
1248 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1249 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
1250 | #endif /* CONFIG_IBSS_RSN */ | |
6fc6879b JM |
1251 | } else { |
1252 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1253 | int timeout = 60; |
1254 | ||
1255 | if (assoc_failed) { | |
1256 | /* give IBSS a bit more time */ | |
1257 | timeout = ssid->mode ? 10 : 5; | |
1258 | } else if (wpa_s->conf->ap_scan == 1) { | |
1259 | /* give IBSS a bit more time */ | |
1260 | timeout = ssid->mode ? 20 : 10; | |
1261 | } | |
6fc6879b JM |
1262 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1263 | } | |
1264 | ||
1265 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1266 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1267 | /* Set static WEP keys again */ | |
1268 | wpa_set_wep_keys(wpa_s, ssid); | |
1269 | } | |
1270 | ||
1271 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1272 | /* | |
1273 | * Do not allow EAP session resumption between different | |
1274 | * network configurations. | |
1275 | */ | |
1276 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1277 | } | |
8bac466b | 1278 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
1279 | wpa_s->current_ssid = ssid; |
1280 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); | |
1281 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1282 | if (old_ssid != wpa_s->current_ssid) |
1283 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1284 | } |
1285 | ||
1286 | ||
1287 | /** | |
1288 | * wpa_supplicant_disassociate - Disassociate the current connection | |
1289 | * @wpa_s: Pointer to wpa_supplicant data | |
1290 | * @reason_code: IEEE 802.11 reason code for the disassociate frame | |
1291 | * | |
1292 | * This function is used to request %wpa_supplicant to disassociate with the | |
1293 | * current AP. | |
1294 | */ | |
1295 | void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s, | |
1296 | int reason_code) | |
1297 | { | |
8bac466b | 1298 | struct wpa_ssid *old_ssid; |
6fc6879b | 1299 | u8 *addr = NULL; |
8bac466b | 1300 | |
a8e16edc | 1301 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1302 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1303 | ieee80211_sta_disassociate(wpa_s, reason_code); |
1304 | else | |
1305 | wpa_drv_disassociate(wpa_s, wpa_s->bssid, reason_code); | |
1306 | addr = wpa_s->bssid; | |
1307 | } | |
1308 | wpa_clear_keys(wpa_s, addr); | |
1309 | wpa_supplicant_mark_disassoc(wpa_s); | |
8bac466b | 1310 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
1311 | wpa_s->current_ssid = NULL; |
1312 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1313 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
8bac466b JM |
1314 | if (old_ssid != wpa_s->current_ssid) |
1315 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1316 | } |
1317 | ||
1318 | ||
1319 | /** | |
1320 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1321 | * @wpa_s: Pointer to wpa_supplicant data | |
1322 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1323 | * | |
073ab58f | 1324 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1325 | * current AP. |
1326 | */ | |
1327 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1328 | int reason_code) | |
1329 | { | |
8bac466b | 1330 | struct wpa_ssid *old_ssid; |
6fc6879b | 1331 | u8 *addr = NULL; |
8bac466b | 1332 | |
a8e16edc | 1333 | if (!is_zero_ether_addr(wpa_s->bssid)) { |
c2a04078 | 1334 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1335 | ieee80211_sta_deauthenticate(wpa_s, reason_code); |
1336 | else | |
1337 | wpa_drv_deauthenticate(wpa_s, wpa_s->bssid, | |
1338 | reason_code); | |
1339 | addr = wpa_s->bssid; | |
1340 | } | |
1341 | wpa_clear_keys(wpa_s, addr); | |
c3dc92e8 | 1342 | wpa_supplicant_mark_disassoc(wpa_s); |
8bac466b | 1343 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
1344 | wpa_s->current_ssid = NULL; |
1345 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1346 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
8bac466b JM |
1347 | if (old_ssid != wpa_s->current_ssid) |
1348 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1349 | } |
1350 | ||
1351 | ||
86b89452 WS |
1352 | /** |
1353 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1354 | * @wpa_s: wpa_supplicant structure for a network interface | |
1355 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1356 | * | |
1357 | * Enables the specified network or all networks if no network specified. | |
1358 | */ | |
1359 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1360 | struct wpa_ssid *ssid) | |
1361 | { | |
1362 | struct wpa_ssid *other_ssid; | |
1363 | int was_disabled; | |
1364 | ||
1365 | if (ssid == NULL) { | |
1366 | other_ssid = wpa_s->conf->ssid; | |
1367 | while (other_ssid) { | |
1368 | if (other_ssid == wpa_s->current_ssid && | |
1369 | other_ssid->disabled) | |
1370 | wpa_s->reassociate = 1; | |
1371 | ||
1372 | was_disabled = other_ssid->disabled; | |
1373 | ||
1374 | other_ssid->disabled = 0; | |
1375 | ||
1376 | if (was_disabled != other_ssid->disabled) | |
1377 | wpas_notify_network_enabled_changed( | |
1378 | wpa_s, other_ssid); | |
1379 | ||
1380 | other_ssid = other_ssid->next; | |
1381 | } | |
1382 | if (wpa_s->reassociate) | |
1383 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1384 | } else if (wpa_s->current_ssid == NULL && ssid->disabled) { | |
1385 | /* | |
1386 | * Try to reassociate since there is no current configuration | |
1387 | * and a new network was made available. | |
1388 | */ | |
1389 | wpa_s->reassociate = 1; | |
1390 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1391 | ||
1392 | was_disabled = ssid->disabled; | |
1393 | ||
1394 | ssid->disabled = 0; | |
1395 | ||
1396 | if (was_disabled != ssid->disabled) | |
1397 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | ||
1402 | /** | |
1403 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1404 | * @wpa_s: wpa_supplicant structure for a network interface | |
1405 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1406 | * | |
1407 | * Disables the specified network or all networks if no network specified. | |
1408 | */ | |
1409 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1410 | struct wpa_ssid *ssid) | |
1411 | { | |
1412 | struct wpa_ssid *other_ssid; | |
1413 | int was_disabled; | |
1414 | ||
1415 | if (ssid == NULL) { | |
1416 | other_ssid = wpa_s->conf->ssid; | |
1417 | while (other_ssid) { | |
1418 | was_disabled = other_ssid->disabled; | |
1419 | ||
1420 | other_ssid->disabled = 1; | |
1421 | ||
1422 | if (was_disabled != other_ssid->disabled) | |
1423 | wpas_notify_network_enabled_changed( | |
1424 | wpa_s, other_ssid); | |
1425 | ||
1426 | other_ssid = other_ssid->next; | |
1427 | } | |
1428 | if (wpa_s->current_ssid) | |
1429 | wpa_supplicant_disassociate( | |
1430 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1431 | } else { | |
1432 | if (ssid == wpa_s->current_ssid) | |
1433 | wpa_supplicant_disassociate( | |
1434 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1435 | ||
1436 | was_disabled = ssid->disabled; | |
1437 | ||
1438 | ssid->disabled = 1; | |
1439 | ||
1440 | if (was_disabled != ssid->disabled) | |
1441 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1442 | } | |
1443 | } | |
1444 | ||
1445 | ||
1446 | /** | |
1447 | * wpa_supplicant_select_network - Attempt association with a network | |
1448 | * @wpa_s: wpa_supplicant structure for a network interface | |
1449 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1450 | */ | |
1451 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1452 | struct wpa_ssid *ssid) | |
1453 | { | |
1454 | ||
1455 | struct wpa_ssid *other_ssid; | |
1456 | ||
1457 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) | |
1458 | wpa_supplicant_disassociate( | |
1459 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1460 | ||
1461 | /* | |
1462 | * Mark all other networks disabled or mark all networks enabled if no | |
1463 | * network specified. | |
1464 | */ | |
1465 | other_ssid = wpa_s->conf->ssid; | |
1466 | while (other_ssid) { | |
1467 | int was_disabled = other_ssid->disabled; | |
1468 | ||
1469 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
1470 | ||
1471 | if (was_disabled != other_ssid->disabled) | |
1472 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
1473 | ||
1474 | other_ssid = other_ssid->next; | |
1475 | } | |
1476 | wpa_s->disconnected = 0; | |
1477 | wpa_s->reassociate = 1; | |
1478 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1479 | ||
1480 | wpas_notify_network_selected(wpa_s, ssid); | |
1481 | } | |
1482 | ||
1483 | ||
1484 | /** | |
1485 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1486 | * @wpa_s: wpa_supplicant structure for a network interface | |
1487 | * @ap_scan: AP scan mode | |
1488 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1489 | * | |
1490 | */ | |
1491 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1492 | { | |
1493 | ||
1494 | int old_ap_scan; | |
1495 | ||
1496 | if (ap_scan < 0 || ap_scan > 2) | |
1497 | return -1; | |
1498 | ||
1499 | old_ap_scan = wpa_s->conf->ap_scan; | |
1500 | wpa_s->conf->ap_scan = ap_scan; | |
1501 | ||
1502 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1503 | wpas_notify_ap_scan_changed(wpa_s); | |
1504 | ||
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | ||
1509 | /** | |
1510 | * wpa_supplicant_set_debug_params - Set global debug params | |
1511 | * @global: wpa_global structure | |
1512 | * @debug_level: debug level | |
1513 | * @debug_timestamp: determines if show timestamp in debug data | |
1514 | * @debug_show_keys: determines if show keys in debug data | |
1515 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
1516 | */ | |
1517 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
1518 | int debug_timestamp, int debug_show_keys) | |
1519 | { | |
1520 | ||
1521 | int old_level, old_timestamp, old_show_keys; | |
1522 | ||
1523 | /* check for allowed debuglevels */ | |
1524 | if (debug_level != MSG_MSGDUMP && | |
1525 | debug_level != MSG_DEBUG && | |
1526 | debug_level != MSG_INFO && | |
1527 | debug_level != MSG_WARNING && | |
1528 | debug_level != MSG_ERROR) | |
1529 | return -1; | |
1530 | ||
1531 | old_level = wpa_debug_level; | |
1532 | old_timestamp = wpa_debug_timestamp; | |
1533 | old_show_keys = wpa_debug_show_keys; | |
1534 | ||
1535 | wpa_debug_level = debug_level; | |
1536 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
1537 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
1538 | ||
1539 | if (wpa_debug_level != old_level || | |
1540 | wpa_debug_timestamp != old_timestamp || | |
1541 | wpa_debug_show_keys != old_show_keys) | |
1542 | wpas_notify_debug_params_changed(global); | |
1543 | ||
1544 | return 0; | |
1545 | } | |
1546 | ||
1547 | ||
3e53b314 WS |
1548 | static struct wpa_scan_results * wpa_supplicant_get_scan_results_old( |
1549 | struct wpa_supplicant *wpa_s) | |
6fc6879b JM |
1550 | { |
1551 | #define SCAN_AP_LIMIT 128 | |
1552 | struct wpa_scan_result *results; | |
1553 | int num, i; | |
1554 | struct wpa_scan_results *res; | |
1555 | ||
1556 | results = os_malloc(SCAN_AP_LIMIT * sizeof(struct wpa_scan_result)); | |
1557 | if (results == NULL) { | |
1558 | wpa_printf(MSG_WARNING, "Failed to allocate memory for scan " | |
1559 | "results"); | |
3e53b314 | 1560 | return NULL; |
6fc6879b JM |
1561 | } |
1562 | ||
1563 | num = wpa_drv_get_scan_results(wpa_s, results, SCAN_AP_LIMIT); | |
1564 | wpa_printf(MSG_DEBUG, "Scan results: %d", num); | |
1565 | if (num < 0) { | |
1566 | wpa_printf(MSG_DEBUG, "Failed to get scan results"); | |
1567 | os_free(results); | |
3e53b314 | 1568 | return NULL; |
6fc6879b JM |
1569 | } |
1570 | if (num > SCAN_AP_LIMIT) { | |
1571 | wpa_printf(MSG_INFO, "Not enough room for all APs (%d < %d)", | |
1572 | num, SCAN_AP_LIMIT); | |
1573 | num = SCAN_AP_LIMIT; | |
1574 | } | |
1575 | ||
6fc6879b JM |
1576 | /* Convert old scan result data structure to the new one */ |
1577 | res = os_zalloc(sizeof(*res)); | |
1578 | if (res == NULL) { | |
1579 | os_free(results); | |
3e53b314 | 1580 | return NULL; |
6fc6879b JM |
1581 | } |
1582 | res->res = os_zalloc(num * sizeof(struct wpa_scan_res *)); | |
1583 | if (res->res == NULL) { | |
1584 | os_free(results); | |
1585 | os_free(res); | |
3e53b314 | 1586 | return NULL; |
6fc6879b JM |
1587 | } |
1588 | ||
1589 | for (i = 0; i < num; i++) { | |
1590 | struct wpa_scan_result *bss = &results[i]; | |
1591 | struct wpa_scan_res *r; | |
1592 | size_t ie_len; | |
1593 | u8 *pos; | |
1594 | ||
1595 | ie_len = 2 + bss->ssid_len + bss->rsn_ie_len + bss->wpa_ie_len; | |
1596 | if (bss->maxrate) | |
1597 | ie_len += 3; | |
1598 | if (bss->mdie_present) | |
1599 | ie_len += 5; | |
1600 | ||
1601 | r = os_zalloc(sizeof(*r) + ie_len); | |
1602 | if (r == NULL) | |
1603 | break; | |
1604 | ||
1605 | os_memcpy(r->bssid, bss->bssid, ETH_ALEN); | |
1606 | r->freq = bss->freq; | |
1607 | r->caps = bss->caps; | |
1608 | r->qual = bss->qual; | |
1609 | r->noise = bss->noise; | |
1610 | r->level = bss->level; | |
1611 | r->tsf = bss->tsf; | |
1612 | r->ie_len = ie_len; | |
1613 | ||
1614 | pos = (u8 *) (r + 1); | |
1615 | ||
1616 | /* SSID IE */ | |
1617 | *pos++ = WLAN_EID_SSID; | |
1618 | *pos++ = bss->ssid_len; | |
1619 | os_memcpy(pos, bss->ssid, bss->ssid_len); | |
1620 | pos += bss->ssid_len; | |
1621 | ||
1622 | if (bss->maxrate) { | |
1623 | /* Fake Supported Rate IE to include max rate */ | |
1624 | *pos++ = WLAN_EID_SUPP_RATES; | |
1625 | *pos++ = 1; | |
1626 | *pos++ = bss->maxrate; | |
1627 | } | |
1628 | ||
1629 | if (bss->rsn_ie_len) { | |
1630 | os_memcpy(pos, bss->rsn_ie, bss->rsn_ie_len); | |
1631 | pos += bss->rsn_ie_len; | |
1632 | } | |
1633 | ||
1634 | if (bss->mdie_present) { | |
1635 | os_memcpy(pos, bss->mdie, 5); | |
1636 | pos += 5; | |
1637 | } | |
1638 | ||
1639 | if (bss->wpa_ie_len) { | |
1640 | os_memcpy(pos, bss->wpa_ie, bss->wpa_ie_len); | |
1641 | pos += bss->wpa_ie_len; | |
1642 | } | |
1643 | ||
1644 | res->res[res->num++] = r; | |
1645 | } | |
1646 | ||
1647 | os_free(results); | |
6fc6879b | 1648 | |
3e53b314 | 1649 | return res; |
6fc6879b JM |
1650 | } |
1651 | ||
1652 | ||
1653 | /** | |
1654 | * wpa_supplicant_get_scan_results - Get scan results | |
1655 | * @wpa_s: Pointer to wpa_supplicant data | |
1656 | * Returns: 0 on success, -1 on failure | |
1657 | * | |
1658 | * This function is request the current scan results from the driver and stores | |
1659 | * a local copy of the results in wpa_s->scan_res. | |
1660 | */ | |
1661 | int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s) | |
1662 | { | |
1663 | int ret; | |
1664 | ||
3e53b314 WS |
1665 | wpa_scan_results_free(wpa_s->scan_res); |
1666 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) | |
6fc6879b | 1667 | wpa_s->scan_res = ieee80211_sta_get_scan_results(wpa_s); |
3e53b314 WS |
1668 | else if (wpa_s->driver->get_scan_results2 == NULL) |
1669 | wpa_s->scan_res = wpa_supplicant_get_scan_results_old(wpa_s); | |
1670 | else | |
6fc6879b | 1671 | wpa_s->scan_res = wpa_drv_get_scan_results2(wpa_s); |
3e53b314 WS |
1672 | if (wpa_s->scan_res == NULL) { |
1673 | wpa_printf(MSG_DEBUG, "Failed to get scan results"); | |
1674 | ret = -1; | |
1675 | } else { | |
1676 | ret = 0; | |
6fc6879b | 1677 | wpa_scan_sort_results(wpa_s->scan_res); |
3e53b314 | 1678 | } |
6fc6879b JM |
1679 | |
1680 | return ret; | |
1681 | } | |
1682 | ||
1683 | ||
1684 | /** | |
1685 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
1686 | * @wpa_s: Pointer to wpa_supplicant data | |
1687 | * Returns: A pointer to the current network structure or %NULL on failure | |
1688 | */ | |
1689 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
1690 | { | |
1691 | struct wpa_ssid *entry; | |
1692 | u8 ssid[MAX_SSID_LEN]; | |
1693 | int res; | |
1694 | size_t ssid_len; | |
1695 | u8 bssid[ETH_ALEN]; | |
1696 | int wired; | |
1697 | ||
c2a04078 | 1698 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b JM |
1699 | if (ieee80211_sta_get_ssid(wpa_s, ssid, &ssid_len)) { |
1700 | wpa_printf(MSG_WARNING, "Could not read SSID from " | |
1701 | "MLME."); | |
1702 | return NULL; | |
1703 | } | |
1704 | } else { | |
1705 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
1706 | if (res < 0) { | |
1707 | wpa_printf(MSG_WARNING, "Could not read SSID from " | |
1708 | "driver."); | |
1709 | return NULL; | |
1710 | } | |
1711 | ssid_len = res; | |
1712 | } | |
1713 | ||
c2a04078 | 1714 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b JM |
1715 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
1716 | else if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
1717 | wpa_printf(MSG_WARNING, "Could not read BSSID from driver."); | |
1718 | return NULL; | |
1719 | } | |
1720 | ||
c2a04078 JM |
1721 | wired = wpa_s->conf->ap_scan == 0 && |
1722 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
1723 | |
1724 | entry = wpa_s->conf->ssid; | |
1725 | while (entry) { | |
1726 | if (!entry->disabled && | |
1727 | ((ssid_len == entry->ssid_len && | |
1728 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
1729 | (!entry->bssid_set || | |
1730 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1731 | return entry; | |
24c23d1b JM |
1732 | #ifdef CONFIG_WPS |
1733 | if (!entry->disabled && | |
1734 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
1735 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
1736 | (!entry->bssid_set || | |
1737 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
1738 | return entry; | |
1739 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1740 | entry = entry->next; |
1741 | } | |
1742 | ||
1743 | return NULL; | |
1744 | } | |
1745 | ||
1746 | ||
1747 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
1748 | const char *name) | |
1749 | { | |
1750 | int i; | |
362f781e JM |
1751 | size_t len; |
1752 | const char *pos; | |
6fc6879b JM |
1753 | |
1754 | if (wpa_s == NULL) | |
1755 | return -1; | |
1756 | ||
c5121837 | 1757 | if (wpa_drivers[0] == NULL) { |
6fc6879b JM |
1758 | wpa_printf(MSG_ERROR, "No driver interfaces build into " |
1759 | "wpa_supplicant."); | |
1760 | return -1; | |
1761 | } | |
1762 | ||
1763 | if (name == NULL) { | |
1764 | /* default to first driver in the list */ | |
c5121837 | 1765 | wpa_s->driver = wpa_drivers[0]; |
6fc6879b JM |
1766 | return 0; |
1767 | } | |
1768 | ||
362f781e JM |
1769 | pos = os_strchr(name, ','); |
1770 | if (pos) | |
1771 | len = pos - name; | |
1772 | else | |
1773 | len = os_strlen(name); | |
c5121837 JM |
1774 | for (i = 0; wpa_drivers[i]; i++) { |
1775 | if (os_strlen(wpa_drivers[i]->name) == len && | |
1776 | os_strncmp(name, wpa_drivers[i]->name, len) == | |
362f781e | 1777 | 0) { |
c5121837 | 1778 | wpa_s->driver = wpa_drivers[i]; |
6fc6879b JM |
1779 | return 0; |
1780 | } | |
1781 | } | |
1782 | ||
362f781e | 1783 | wpa_printf(MSG_ERROR, "Unsupported driver '%s'.", name); |
6fc6879b JM |
1784 | return -1; |
1785 | } | |
1786 | ||
1787 | ||
1788 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, | |
1789 | const u8 *buf, size_t len) | |
1790 | { | |
1791 | struct wpa_supplicant *wpa_s = ctx; | |
1792 | ||
1793 | wpa_printf(MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); | |
1794 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); | |
1795 | ||
1ff73338 JM |
1796 | if (wpa_s->wpa_state < WPA_ASSOCIATED) { |
1797 | /* | |
1798 | * There is possible race condition between receiving the | |
1799 | * association event and the EAPOL frame since they are coming | |
1800 | * through different paths from the driver. In order to avoid | |
1801 | * issues in trying to process the EAPOL frame before receiving | |
1802 | * association information, lets queue it for processing until | |
1803 | * the association event is received. | |
1804 | */ | |
1805 | wpa_printf(MSG_DEBUG, "Not associated - Delay processing of " | |
1806 | "received EAPOL frame"); | |
1807 | wpabuf_free(wpa_s->pending_eapol_rx); | |
1808 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
1809 | if (wpa_s->pending_eapol_rx) { | |
1810 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
1811 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
1812 | ETH_ALEN); | |
1813 | } | |
1814 | return; | |
1815 | } | |
1816 | ||
db149ac9 JM |
1817 | #ifdef CONFIG_AP |
1818 | if (wpa_s->ap_iface) { | |
1819 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
1820 | return; | |
1821 | } | |
1822 | #endif /* CONFIG_AP */ | |
1823 | ||
6fc6879b JM |
1824 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
1825 | wpa_printf(MSG_DEBUG, "Ignored received EAPOL frame since " | |
1826 | "no key management is configured"); | |
1827 | return; | |
1828 | } | |
1829 | ||
1830 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 1831 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 1832 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
6fc6879b JM |
1833 | wpa_s->wpa_state != WPA_COMPLETED)) { |
1834 | /* Timeout for completing IEEE 802.1X and WPA authentication */ | |
1835 | wpa_supplicant_req_auth_timeout( | |
1836 | wpa_s, | |
56586197 | 1837 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
1838 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
1839 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
1840 | 70 : 10, 0); |
1841 | } | |
1842 | wpa_s->eapol_received++; | |
1843 | ||
1844 | if (wpa_s->countermeasures) { | |
1845 | wpa_printf(MSG_INFO, "WPA: Countermeasures - dropped EAPOL " | |
1846 | "packet"); | |
1847 | return; | |
1848 | } | |
1849 | ||
8be18440 JM |
1850 | #ifdef CONFIG_IBSS_RSN |
1851 | if (wpa_s->current_ssid && | |
1852 | wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS) { | |
1853 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); | |
1854 | return; | |
1855 | } | |
1856 | #endif /* CONFIG_IBSS_RSN */ | |
1857 | ||
6fc6879b JM |
1858 | /* Source address of the incoming EAPOL frame could be compared to the |
1859 | * current BSSID. However, it is possible that a centralized | |
1860 | * Authenticator could be using another MAC address than the BSSID of | |
1861 | * an AP, so just allow any address to be used for now. The replies are | |
1862 | * still sent to the current BSSID (if available), though. */ | |
1863 | ||
1864 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 1865 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
1866 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
1867 | return; | |
1868 | wpa_drv_poll(wpa_s); | |
c2a04078 | 1869 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 1870 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 1871 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
1872 | /* |
1873 | * Set portValid = TRUE here since we are going to skip 4-way | |
1874 | * handshake processing which would normally set portValid. We | |
1875 | * need this to allow the EAPOL state machines to be completed | |
1876 | * without going through EAPOL-Key handshake. | |
1877 | */ | |
1878 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | ||
6fc6879b JM |
1883 | void wpa_supplicant_sta_rx(void *ctx, const u8 *buf, size_t len, |
1884 | struct ieee80211_rx_status *rx_status) | |
1885 | { | |
1886 | struct wpa_supplicant *wpa_s = ctx; | |
1887 | ieee80211_sta_rx(wpa_s, buf, len, rx_status); | |
1888 | } | |
1889 | ||
1890 | ||
1891 | /** | |
1892 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
1893 | * @wpa_s: Pointer to wpa_supplicant data | |
1894 | * Returns: 0 on success, -1 on failure | |
1895 | * | |
1896 | * This function is called to initialize driver interface parameters. | |
1897 | * wpa_drv_init() must have been called before this function to initialize the | |
1898 | * driver interface. | |
1899 | */ | |
1900 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
1901 | { | |
1902 | static int interface_count = 0; | |
1903 | ||
1904 | if (wpa_s->driver->send_eapol) { | |
1905 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
1906 | if (addr) | |
1907 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
1908 | } else { | |
1909 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, | |
1910 | wpa_drv_get_mac_addr(wpa_s), | |
1911 | ETH_P_EAPOL, | |
1912 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
1913 | if (wpa_s->l2 == NULL) | |
1914 | return -1; | |
1915 | } | |
1916 | ||
1917 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
1918 | wpa_printf(MSG_ERROR, "Failed to get own L2 address"); | |
1919 | return -1; | |
1920 | } | |
1921 | ||
1922 | wpa_printf(MSG_DEBUG, "Own MAC address: " MACSTR, | |
1923 | MAC2STR(wpa_s->own_addr)); | |
1924 | ||
1925 | if (wpa_s->bridge_ifname[0]) { | |
1926 | wpa_printf(MSG_DEBUG, "Receiving packets from bridge interface" | |
1927 | " '%s'", wpa_s->bridge_ifname); | |
1928 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, | |
1929 | wpa_s->own_addr, | |
1930 | ETH_P_EAPOL, | |
1931 | wpa_supplicant_rx_eapol, wpa_s, | |
1932 | 0); | |
1933 | if (wpa_s->l2_br == NULL) { | |
1934 | wpa_printf(MSG_ERROR, "Failed to open l2_packet " | |
1935 | "connection for the bridge interface '%s'", | |
1936 | wpa_s->bridge_ifname); | |
1937 | return -1; | |
1938 | } | |
1939 | } | |
1940 | ||
1941 | /* Backwards compatibility call to set_wpa() handler. This is called | |
1942 | * only just after init and just before deinit, so these handler can be | |
1943 | * used to implement same functionality. */ | |
1944 | if (wpa_drv_set_wpa(wpa_s, 1) < 0) { | |
1945 | struct wpa_driver_capa capa; | |
1946 | if (wpa_drv_get_capa(wpa_s, &capa) < 0 || | |
1947 | !(capa.flags & (WPA_DRIVER_CAPA_KEY_MGMT_WPA | | |
1948 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2))) { | |
1949 | wpa_printf(MSG_DEBUG, "Driver does not support WPA."); | |
1950 | /* Continue to allow non-WPA modes to be used. */ | |
1951 | } else { | |
1952 | wpa_printf(MSG_ERROR, "Failed to enable WPA in the " | |
1953 | "driver."); | |
1954 | return -1; | |
1955 | } | |
1956 | } | |
1957 | ||
1958 | wpa_clear_keys(wpa_s, NULL); | |
1959 | ||
1960 | /* Make sure that TKIP countermeasures are not left enabled (could | |
1961 | * happen if wpa_supplicant is killed during countermeasures. */ | |
1962 | wpa_drv_set_countermeasures(wpa_s, 0); | |
1963 | ||
1964 | wpa_drv_set_drop_unencrypted(wpa_s, 1); | |
1965 | ||
1966 | wpa_printf(MSG_DEBUG, "RSN: flushing PMKID list in the driver"); | |
1967 | wpa_drv_flush_pmkid(wpa_s); | |
1968 | ||
ba2a573c | 1969 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
6fc6879b JM |
1970 | wpa_supplicant_req_scan(wpa_s, interface_count, 100000); |
1971 | interface_count++; | |
1972 | ||
1973 | return 0; | |
1974 | } | |
1975 | ||
1976 | ||
1977 | static int wpa_supplicant_daemon(const char *pid_file) | |
1978 | { | |
1979 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
1980 | return os_daemonize(pid_file); | |
1981 | } | |
1982 | ||
1983 | ||
1984 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
1985 | { | |
1986 | struct wpa_supplicant *wpa_s; | |
1987 | ||
1988 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
1989 | if (wpa_s == NULL) | |
1990 | return NULL; | |
1991 | wpa_s->scan_req = 1; | |
1992 | ||
1993 | return wpa_s; | |
1994 | } | |
1995 | ||
1996 | ||
1997 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
1998 | struct wpa_interface *iface) | |
1999 | { | |
362f781e JM |
2000 | const char *ifname, *driver; |
2001 | struct wpa_driver_capa capa; | |
2002 | ||
6fc6879b JM |
2003 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
2004 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
2005 | iface->confname ? iface->confname : "N/A", | |
2006 | iface->driver ? iface->driver : "default", | |
2007 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
2008 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
2009 | ||
6fc6879b JM |
2010 | if (iface->confname) { |
2011 | #ifdef CONFIG_BACKEND_FILE | |
2012 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
2013 | if (wpa_s->confname == NULL) { | |
2014 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
2015 | "for configuration file '%s'.", | |
2016 | iface->confname); | |
2017 | return -1; | |
2018 | } | |
2019 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
2020 | iface->confname, wpa_s->confname); | |
2021 | #else /* CONFIG_BACKEND_FILE */ | |
2022 | wpa_s->confname = os_strdup(iface->confname); | |
2023 | #endif /* CONFIG_BACKEND_FILE */ | |
2024 | wpa_s->conf = wpa_config_read(wpa_s->confname); | |
2025 | if (wpa_s->conf == NULL) { | |
2026 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
2027 | "configuration '%s'.", wpa_s->confname); | |
2028 | return -1; | |
2029 | } | |
2030 | ||
2031 | /* | |
2032 | * Override ctrl_interface and driver_param if set on command | |
2033 | * line. | |
2034 | */ | |
2035 | if (iface->ctrl_interface) { | |
2036 | os_free(wpa_s->conf->ctrl_interface); | |
2037 | wpa_s->conf->ctrl_interface = | |
2038 | os_strdup(iface->ctrl_interface); | |
2039 | } | |
2040 | ||
2041 | if (iface->driver_param) { | |
2042 | os_free(wpa_s->conf->driver_param); | |
2043 | wpa_s->conf->driver_param = | |
2044 | os_strdup(iface->driver_param); | |
2045 | } | |
2046 | } else | |
2047 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
2048 | iface->driver_param); | |
2049 | ||
2050 | if (wpa_s->conf == NULL) { | |
2051 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
2052 | return -1; | |
2053 | } | |
2054 | ||
2055 | if (iface->ifname == NULL) { | |
2056 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
2057 | return -1; | |
2058 | } | |
2059 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
2060 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
2061 | iface->ifname); | |
2062 | return -1; | |
2063 | } | |
2064 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
2065 | ||
2066 | if (iface->bridge_ifname) { | |
2067 | if (os_strlen(iface->bridge_ifname) >= | |
2068 | sizeof(wpa_s->bridge_ifname)) { | |
2069 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
2070 | "name '%s'.", iface->bridge_ifname); | |
2071 | return -1; | |
2072 | } | |
2073 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
2074 | sizeof(wpa_s->bridge_ifname)); | |
2075 | } | |
2076 | ||
6fc6879b JM |
2077 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2078 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2079 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2080 | ||
2081 | /* Initialize driver interface and register driver event handler before | |
2082 | * L2 receive handler so that association events are processed before | |
2083 | * EAPOL-Key packets if both become available for the same select() | |
2084 | * call. */ | |
362f781e JM |
2085 | driver = iface->driver; |
2086 | next_driver: | |
2087 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2088 | return -1; | |
2089 | ||
6fc6879b JM |
2090 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2091 | if (wpa_s->drv_priv == NULL) { | |
362f781e JM |
2092 | const char *pos; |
2093 | pos = os_strchr(driver, ','); | |
2094 | if (pos) { | |
2095 | wpa_printf(MSG_DEBUG, "Failed to initialize driver " | |
2096 | "interface - try next driver wrapper"); | |
2097 | driver = pos + 1; | |
2098 | goto next_driver; | |
2099 | } | |
6fc6879b JM |
2100 | wpa_printf(MSG_ERROR, "Failed to initialize driver interface"); |
2101 | return -1; | |
2102 | } | |
2103 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
2104 | wpa_printf(MSG_ERROR, "Driver interface rejected " | |
2105 | "driver_param '%s'", wpa_s->conf->driver_param); | |
2106 | return -1; | |
2107 | } | |
2108 | ||
2109 | ifname = wpa_drv_get_ifname(wpa_s); | |
2110 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
2111 | wpa_printf(MSG_DEBUG, "Driver interface replaced interface " | |
2112 | "name with '%s'", ifname); | |
2113 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); | |
2114 | } | |
2115 | ||
2116 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2117 | return -1; | |
2118 | ||
2119 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2120 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2121 | NULL); | |
2122 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2123 | ||
2124 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2125 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2126 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
2127 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2128 | "dot11RSNAConfigPMKLifetime"); | |
2129 | return -1; | |
2130 | } | |
2131 | ||
2132 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2133 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2134 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
2135 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2136 | "dot11RSNAConfigPMKReauthThreshold"); | |
2137 | return -1; | |
2138 | } | |
2139 | ||
2140 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2141 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2142 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
2143 | wpa_printf(MSG_ERROR, "Invalid WPA parameter value for " | |
2144 | "dot11RSNAConfigSATimeout"); | |
2145 | return -1; | |
2146 | } | |
2147 | ||
2148 | if (wpa_supplicant_driver_init(wpa_s) < 0) | |
2149 | return -1; | |
2150 | ||
315ce40a JM |
2151 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2152 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
6d158490 LR |
2153 | wpa_printf(MSG_DEBUG, "Failed to set country"); |
2154 | return -1; | |
2155 | } | |
2156 | ||
6fc6879b JM |
2157 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
2158 | ||
116654ce JM |
2159 | if (wpas_wps_init(wpa_s)) |
2160 | return -1; | |
2161 | ||
6fc6879b JM |
2162 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2163 | return -1; | |
2164 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2165 | ||
2166 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2167 | if (wpa_s->ctrl_iface == NULL) { | |
2168 | wpa_printf(MSG_ERROR, | |
2169 | "Failed to initialize control interface '%s'.\n" | |
2170 | "You may have another wpa_supplicant process " | |
2171 | "already running or the file was\n" | |
2172 | "left by an unclean termination of wpa_supplicant " | |
2173 | "in which case you will need\n" | |
2174 | "to manually remove this file before starting " | |
2175 | "wpa_supplicant again.\n", | |
2176 | wpa_s->conf->ctrl_interface); | |
2177 | return -1; | |
2178 | } | |
2179 | ||
2180 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { | |
c2a04078 | 2181 | wpa_s->drv_flags = capa.flags; |
6fc6879b | 2182 | if (capa.flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) { |
6fc6879b JM |
2183 | if (ieee80211_sta_init(wpa_s)) |
2184 | return -1; | |
2185 | } | |
80bc75f1 | 2186 | wpa_s->max_scan_ssids = capa.max_scan_ssids; |
6fc6879b JM |
2187 | } |
2188 | ||
11ef8d35 JM |
2189 | #ifdef CONFIG_IBSS_RSN |
2190 | wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); | |
2191 | if (!wpa_s->ibss_rsn) { | |
2192 | wpa_printf(MSG_DEBUG, "Failed to init IBSS RSN"); | |
2193 | return -1; | |
2194 | } | |
2195 | #endif /* CONFIG_IBSS_RSN */ | |
2196 | ||
6fc6879b JM |
2197 | return 0; |
2198 | } | |
2199 | ||
2200 | ||
2201 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s) | |
2202 | { | |
2203 | if (wpa_s->drv_priv) { | |
2204 | wpa_supplicant_deauthenticate(wpa_s, | |
2205 | WLAN_REASON_DEAUTH_LEAVING); | |
2206 | ||
2207 | /* Backwards compatibility call to set_wpa() handler. This is | |
2208 | * called only just after init and just before deinit, so these | |
2209 | * handler can be used to implement same functionality. */ | |
2210 | if (wpa_drv_set_wpa(wpa_s, 0) < 0) { | |
2211 | wpa_printf(MSG_ERROR, "Failed to disable WPA in the " | |
2212 | "driver."); | |
2213 | } | |
2214 | ||
2215 | wpa_drv_set_drop_unencrypted(wpa_s, 0); | |
2216 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2217 | wpa_clear_keys(wpa_s, NULL); | |
2218 | } | |
2219 | ||
8bac466b | 2220 | wpas_notify_unregister_interface(wpa_s); |
6fc6879b JM |
2221 | |
2222 | wpa_supplicant_cleanup(wpa_s); | |
2223 | ||
2224 | if (wpa_s->drv_priv) | |
2225 | wpa_drv_deinit(wpa_s); | |
2226 | } | |
2227 | ||
2228 | ||
2229 | /** | |
2230 | * wpa_supplicant_add_iface - Add a new network interface | |
2231 | * @global: Pointer to global data from wpa_supplicant_init() | |
2232 | * @iface: Interface configuration options | |
2233 | * Returns: Pointer to the created interface or %NULL on failure | |
2234 | * | |
2235 | * This function is used to add new network interfaces for %wpa_supplicant. | |
2236 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
2237 | * main event loop has been started. In addition, new interfaces can be added | |
2238 | * dynamically while %wpa_supplicant is already running. This could happen, | |
2239 | * e.g., when a hotplug network adapter is inserted. | |
2240 | */ | |
2241 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
2242 | struct wpa_interface *iface) | |
2243 | { | |
2244 | struct wpa_supplicant *wpa_s; | |
2245 | ||
2246 | if (global == NULL || iface == NULL) | |
2247 | return NULL; | |
2248 | ||
2249 | wpa_s = wpa_supplicant_alloc(); | |
2250 | if (wpa_s == NULL) | |
2251 | return NULL; | |
2252 | ||
362f781e | 2253 | if (wpa_supplicant_init_iface(wpa_s, iface)) { |
6fc6879b JM |
2254 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
2255 | iface->ifname); | |
2256 | wpa_supplicant_deinit_iface(wpa_s); | |
2257 | os_free(wpa_s); | |
2258 | return NULL; | |
2259 | } | |
2260 | ||
2261 | wpa_s->global = global; | |
2262 | ||
2263 | /* Register the interface with the dbus control interface */ | |
2264 | if (wpas_dbus_register_iface(wpa_s)) { | |
2265 | wpa_supplicant_deinit_iface(wpa_s); | |
2266 | os_free(wpa_s); | |
2267 | return NULL; | |
2268 | } | |
1bd3f426 | 2269 | |
6fc6879b JM |
2270 | wpa_s->next = global->ifaces; |
2271 | global->ifaces = wpa_s; | |
2272 | ||
2273 | wpa_printf(MSG_DEBUG, "Added interface %s", wpa_s->ifname); | |
2274 | ||
2275 | return wpa_s; | |
2276 | } | |
2277 | ||
2278 | ||
2279 | /** | |
2280 | * wpa_supplicant_remove_iface - Remove a network interface | |
2281 | * @global: Pointer to global data from wpa_supplicant_init() | |
2282 | * @wpa_s: Pointer to the network interface to be removed | |
2283 | * Returns: 0 if interface was removed, -1 if interface was not found | |
2284 | * | |
2285 | * This function can be used to dynamically remove network interfaces from | |
2286 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
2287 | * addition, this function is used to remove all remaining interfaces when | |
2288 | * %wpa_supplicant is terminated. | |
2289 | */ | |
2290 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
2291 | struct wpa_supplicant *wpa_s) | |
2292 | { | |
2293 | struct wpa_supplicant *prev; | |
2294 | ||
2295 | /* Remove interface from the global list of interfaces */ | |
2296 | prev = global->ifaces; | |
2297 | if (prev == wpa_s) { | |
2298 | global->ifaces = wpa_s->next; | |
2299 | } else { | |
2300 | while (prev && prev->next != wpa_s) | |
2301 | prev = prev->next; | |
2302 | if (prev == NULL) | |
2303 | return -1; | |
2304 | prev->next = wpa_s->next; | |
2305 | } | |
2306 | ||
2307 | wpa_printf(MSG_DEBUG, "Removing interface %s", wpa_s->ifname); | |
2308 | ||
2309 | wpa_supplicant_deinit_iface(wpa_s); | |
2310 | os_free(wpa_s); | |
2311 | ||
2312 | return 0; | |
2313 | } | |
2314 | ||
2315 | ||
2316 | /** | |
2317 | * wpa_supplicant_get_iface - Get a new network interface | |
2318 | * @global: Pointer to global data from wpa_supplicant_init() | |
2319 | * @ifname: Interface name | |
2320 | * Returns: Pointer to the interface or %NULL if not found | |
2321 | */ | |
2322 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
2323 | const char *ifname) | |
2324 | { | |
2325 | struct wpa_supplicant *wpa_s; | |
2326 | ||
2327 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
2328 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
2329 | return wpa_s; | |
2330 | } | |
2331 | return NULL; | |
2332 | } | |
2333 | ||
2334 | ||
2335 | /** | |
2336 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
2337 | * @params: Parameters for %wpa_supplicant | |
2338 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
2339 | * | |
2340 | * This function is used to initialize %wpa_supplicant. After successful | |
2341 | * initialization, the returned data pointer can be used to add and remove | |
2342 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
2343 | */ | |
2344 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
2345 | { | |
2346 | struct wpa_global *global; | |
ac305589 | 2347 | int ret, i; |
6fc6879b JM |
2348 | |
2349 | if (params == NULL) | |
2350 | return NULL; | |
2351 | ||
2352 | wpa_debug_open_file(params->wpa_debug_file_path); | |
daa70d49 SL |
2353 | if (params->wpa_debug_syslog) |
2354 | wpa_debug_open_syslog(); | |
6fc6879b JM |
2355 | |
2356 | ret = eap_peer_register_methods(); | |
2357 | if (ret) { | |
2358 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
2359 | if (ret == -2) | |
2360 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2361 | "the same EAP type."); | |
2362 | return NULL; | |
2363 | } | |
2364 | ||
3ec97afe JM |
2365 | #ifdef CONFIG_AP |
2366 | ret = eap_server_register_methods(); | |
2367 | if (ret) { | |
2368 | wpa_printf(MSG_ERROR, "Failed to register EAP server methods"); | |
2369 | if (ret == -2) | |
2370 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
2371 | "the same EAP type."); | |
2372 | return NULL; | |
2373 | } | |
2374 | #endif /* CONFIG_AP */ | |
2375 | ||
6fc6879b JM |
2376 | global = os_zalloc(sizeof(*global)); |
2377 | if (global == NULL) | |
2378 | return NULL; | |
2379 | global->params.daemonize = params->daemonize; | |
2380 | global->params.wait_for_monitor = params->wait_for_monitor; | |
2381 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
2382 | if (params->pid_file) | |
2383 | global->params.pid_file = os_strdup(params->pid_file); | |
2384 | if (params->ctrl_interface) | |
2385 | global->params.ctrl_interface = | |
2386 | os_strdup(params->ctrl_interface); | |
2387 | wpa_debug_level = global->params.wpa_debug_level = | |
2388 | params->wpa_debug_level; | |
2389 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
2390 | params->wpa_debug_show_keys; | |
2391 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
2392 | params->wpa_debug_timestamp; | |
2393 | ||
2394 | if (eloop_init(global)) { | |
2395 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); | |
2396 | wpa_supplicant_deinit(global); | |
2397 | return NULL; | |
2398 | } | |
2399 | ||
2400 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); | |
2401 | if (global->ctrl_iface == NULL) { | |
2402 | wpa_supplicant_deinit(global); | |
2403 | return NULL; | |
2404 | } | |
2405 | ||
2406 | if (global->params.dbus_ctrl_interface) { | |
2407 | global->dbus_ctrl_iface = | |
2408 | wpa_supplicant_dbus_ctrl_iface_init(global); | |
2409 | if (global->dbus_ctrl_iface == NULL) { | |
2410 | wpa_supplicant_deinit(global); | |
2411 | return NULL; | |
2412 | } | |
2413 | } | |
2414 | ||
c5121837 | 2415 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
2416 | global->drv_count++; |
2417 | if (global->drv_count == 0) { | |
2418 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
2419 | wpa_supplicant_deinit(global); | |
2420 | return NULL; | |
2421 | } | |
2422 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
2423 | if (global->drv_priv == NULL) { | |
2424 | wpa_supplicant_deinit(global); | |
2425 | return NULL; | |
2426 | } | |
c5121837 JM |
2427 | for (i = 0; wpa_drivers[i]; i++) { |
2428 | if (!wpa_drivers[i]->global_init) | |
ac305589 | 2429 | continue; |
c5121837 | 2430 | global->drv_priv[i] = wpa_drivers[i]->global_init(); |
ac305589 JM |
2431 | if (global->drv_priv[i] == NULL) { |
2432 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
c5121837 | 2433 | "'%s'", wpa_drivers[i]->name); |
ac305589 JM |
2434 | wpa_supplicant_deinit(global); |
2435 | return NULL; | |
2436 | } | |
2437 | } | |
2438 | ||
6fc6879b JM |
2439 | return global; |
2440 | } | |
2441 | ||
2442 | ||
2443 | /** | |
2444 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
2445 | * @global: Pointer to global data from wpa_supplicant_init() | |
2446 | * Returns: 0 after successful event loop run, -1 on failure | |
2447 | * | |
2448 | * This function starts the main event loop and continues running as long as | |
2449 | * there are any remaining events. In most cases, this function is running as | |
2450 | * long as the %wpa_supplicant process in still in use. | |
2451 | */ | |
2452 | int wpa_supplicant_run(struct wpa_global *global) | |
2453 | { | |
2454 | struct wpa_supplicant *wpa_s; | |
2455 | ||
2456 | if (global->params.daemonize && | |
2457 | wpa_supplicant_daemon(global->params.pid_file)) | |
2458 | return -1; | |
2459 | ||
2460 | if (global->params.wait_for_monitor) { | |
2461 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
2462 | if (wpa_s->ctrl_iface) | |
2463 | wpa_supplicant_ctrl_iface_wait( | |
2464 | wpa_s->ctrl_iface); | |
2465 | } | |
2466 | ||
2467 | eloop_register_signal_terminate(wpa_supplicant_terminate, NULL); | |
2468 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, NULL); | |
2469 | ||
2470 | eloop_run(); | |
2471 | ||
2472 | return 0; | |
2473 | } | |
2474 | ||
2475 | ||
2476 | /** | |
2477 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
2478 | * @global: Pointer to global data from wpa_supplicant_init() | |
2479 | * | |
2480 | * This function is called to deinitialize %wpa_supplicant and to free all | |
2481 | * allocated resources. Remaining network interfaces will also be removed. | |
2482 | */ | |
2483 | void wpa_supplicant_deinit(struct wpa_global *global) | |
2484 | { | |
ac305589 JM |
2485 | int i; |
2486 | ||
6fc6879b JM |
2487 | if (global == NULL) |
2488 | return; | |
2489 | ||
2490 | while (global->ifaces) | |
2491 | wpa_supplicant_remove_iface(global, global->ifaces); | |
2492 | ||
2493 | if (global->ctrl_iface) | |
2494 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
2495 | if (global->dbus_ctrl_iface) | |
2496 | wpa_supplicant_dbus_ctrl_iface_deinit(global->dbus_ctrl_iface); | |
2497 | ||
2498 | eap_peer_unregister_methods(); | |
3ec97afe JM |
2499 | #ifdef CONFIG_AP |
2500 | eap_server_unregister_methods(); | |
2501 | #endif /* CONFIG_AP */ | |
6fc6879b | 2502 | |
c5121837 | 2503 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
2504 | if (!global->drv_priv[i]) |
2505 | continue; | |
c5121837 | 2506 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
2507 | } |
2508 | os_free(global->drv_priv); | |
2509 | ||
6fc6879b JM |
2510 | eloop_destroy(); |
2511 | ||
2512 | if (global->params.pid_file) { | |
2513 | os_daemonize_terminate(global->params.pid_file); | |
2514 | os_free(global->params.pid_file); | |
2515 | } | |
2516 | os_free(global->params.ctrl_interface); | |
2517 | ||
2518 | os_free(global); | |
daa70d49 | 2519 | wpa_debug_close_syslog(); |
6fc6879b JM |
2520 | wpa_debug_close_file(); |
2521 | } |