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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant | |
d93dfbd5 | 3 | * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> |
6fc6879b | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | * |
8 | * This file implements functions for registering and unregistering | |
9 | * %wpa_supplicant interfaces. In addition, this file contains number of | |
10 | * functions for managing network connections. | |
11 | */ | |
12 | ||
13 | #include "includes.h" | |
14 | ||
15 | #include "common.h" | |
d47fa330 | 16 | #include "crypto/random.h" |
7d232e23 | 17 | #include "crypto/sha1.h" |
6fc6879b JM |
18 | #include "eapol_supp/eapol_supp_sm.h" |
19 | #include "eap_peer/eap.h" | |
3ec97afe | 20 | #include "eap_server/eap_methods.h" |
3acb5005 | 21 | #include "rsn_supp/wpa.h" |
6fc6879b | 22 | #include "eloop.h" |
6fc6879b | 23 | #include "config.h" |
306ae225 | 24 | #include "utils/ext_password.h" |
6fc6879b JM |
25 | #include "l2_packet/l2_packet.h" |
26 | #include "wpa_supplicant_i.h" | |
2d5b792d | 27 | #include "driver_i.h" |
6fc6879b | 28 | #include "ctrl_iface.h" |
6fc6879b | 29 | #include "pcsc_funcs.h" |
90973fb2 | 30 | #include "common/version.h" |
3acb5005 JM |
31 | #include "rsn_supp/preauth.h" |
32 | #include "rsn_supp/pmksa_cache.h" | |
90973fb2 | 33 | #include "common/wpa_ctrl.h" |
90973fb2 | 34 | #include "common/ieee802_11_defs.h" |
72044390 | 35 | #include "p2p/p2p.h" |
6fc6879b JM |
36 | #include "blacklist.h" |
37 | #include "wpas_glue.h" | |
116654ce | 38 | #include "wps_supplicant.h" |
11ef8d35 | 39 | #include "ibss_rsn.h" |
c2a04078 | 40 | #include "sme.h" |
04ea7b79 | 41 | #include "gas_query.h" |
1f1b62a0 | 42 | #include "ap.h" |
b22128ef | 43 | #include "p2p_supplicant.h" |
9675ce35 | 44 | #include "wifi_display.h" |
8bac466b | 45 | #include "notify.h" |
60b94c98 | 46 | #include "bgscan.h" |
7c865c68 | 47 | #include "autoscan.h" |
83922c2d | 48 | #include "bss.h" |
9ba9fa07 | 49 | #include "scan.h" |
24f6497c | 50 | #include "offchannel.h" |
cb418324 | 51 | #include "hs20_supplicant.h" |
6fc6879b JM |
52 | |
53 | const char *wpa_supplicant_version = | |
54 | "wpa_supplicant v" VERSION_STR "\n" | |
e056f93e | 55 | "Copyright (c) 2003-2013, Jouni Malinen <j@w1.fi> and contributors"; |
6fc6879b JM |
56 | |
57 | const char *wpa_supplicant_license = | |
331f89ff JM |
58 | "This software may be distributed under the terms of the BSD license.\n" |
59 | "See README for more details.\n" | |
6fc6879b JM |
60 | #ifdef EAP_TLS_OPENSSL |
61 | "\nThis product includes software developed by the OpenSSL Project\n" | |
62 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
63 | #endif /* EAP_TLS_OPENSSL */ | |
64 | ; | |
65 | ||
66 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
67 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
68 | const char *wpa_supplicant_full_license1 = | |
331f89ff | 69 | ""; |
6fc6879b | 70 | const char *wpa_supplicant_full_license2 = |
331f89ff | 71 | "This software may be distributed under the terms of the BSD license.\n" |
6fc6879b JM |
72 | "\n" |
73 | "Redistribution and use in source and binary forms, with or without\n" | |
74 | "modification, are permitted provided that the following conditions are\n" | |
75 | "met:\n" | |
76 | "\n"; | |
77 | const char *wpa_supplicant_full_license3 = | |
78 | "1. Redistributions of source code must retain the above copyright\n" | |
79 | " notice, this list of conditions and the following disclaimer.\n" | |
80 | "\n" | |
81 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
82 | " notice, this list of conditions and the following disclaimer in the\n" | |
83 | " documentation and/or other materials provided with the distribution.\n" | |
84 | "\n"; | |
85 | const char *wpa_supplicant_full_license4 = | |
86 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
87 | " names of its contributors may be used to endorse or promote products\n" | |
88 | " derived from this software without specific prior written permission.\n" | |
89 | "\n" | |
90 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
91 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
92 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
93 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
94 | const char *wpa_supplicant_full_license5 = | |
95 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
96 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
97 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
98 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
99 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
100 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
101 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
102 | "\n"; | |
103 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
104 | ||
6fc6879b JM |
105 | extern int wpa_debug_level; |
106 | extern int wpa_debug_show_keys; | |
107 | extern int wpa_debug_timestamp; | |
c5121837 | 108 | extern struct wpa_driver_ops *wpa_drivers[]; |
6fc6879b JM |
109 | |
110 | /* Configure default/group WEP keys for static WEP */ | |
0194fedb | 111 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) |
6fc6879b JM |
112 | { |
113 | int i, set = 0; | |
114 | ||
115 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
116 | if (ssid->wep_key_len[i] == 0) | |
117 | continue; | |
118 | ||
119 | set = 1; | |
0382097e | 120 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, |
da64c266 | 121 | i, i == ssid->wep_tx_keyidx, NULL, 0, |
6fc6879b JM |
122 | ssid->wep_key[i], ssid->wep_key_len[i]); |
123 | } | |
124 | ||
125 | return set; | |
126 | } | |
127 | ||
128 | ||
129 | static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
130 | struct wpa_ssid *ssid) | |
131 | { | |
132 | u8 key[32]; | |
133 | size_t keylen; | |
71934751 | 134 | enum wpa_alg alg; |
6fc6879b JM |
135 | u8 seq[6] = { 0 }; |
136 | ||
137 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
138 | * sending unicast and multicast packets. */ | |
139 | ||
d7dcba70 | 140 | if (ssid->mode != WPAS_MODE_IBSS) { |
f049052b BG |
141 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " |
142 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
6fc6879b JM |
143 | return -1; |
144 | } | |
145 | ||
146 | if (!ssid->psk_set) { | |
f049052b BG |
147 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " |
148 | "WPA-None"); | |
6fc6879b JM |
149 | return -1; |
150 | } | |
151 | ||
152 | switch (wpa_s->group_cipher) { | |
153 | case WPA_CIPHER_CCMP: | |
154 | os_memcpy(key, ssid->psk, 16); | |
155 | keylen = 16; | |
156 | alg = WPA_ALG_CCMP; | |
157 | break; | |
eb7719ff JM |
158 | case WPA_CIPHER_GCMP: |
159 | os_memcpy(key, ssid->psk, 16); | |
160 | keylen = 16; | |
161 | alg = WPA_ALG_GCMP; | |
162 | break; | |
6fc6879b JM |
163 | case WPA_CIPHER_TKIP: |
164 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
165 | os_memcpy(key, ssid->psk, 16 + 8); | |
166 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
167 | keylen = 32; | |
168 | alg = WPA_ALG_TKIP; | |
169 | break; | |
170 | default: | |
f049052b BG |
171 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " |
172 | "WPA-None", wpa_s->group_cipher); | |
6fc6879b JM |
173 | return -1; |
174 | } | |
175 | ||
176 | /* TODO: should actually remember the previously used seq#, both for TX | |
177 | * and RX from each STA.. */ | |
178 | ||
0382097e | 179 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); |
6fc6879b JM |
180 | } |
181 | ||
182 | ||
183 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
184 | { | |
185 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
186 | const u8 *bssid = wpa_s->bssid; | |
a8e16edc | 187 | if (is_zero_ether_addr(bssid)) |
6fc6879b JM |
188 | bssid = wpa_s->pending_bssid; |
189 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
190 | MAC2STR(bssid)); | |
191 | wpa_blacklist_add(wpa_s, bssid); | |
192 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
07783eaa | 193 | wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
6fc6879b | 194 | wpa_s->reassociate = 1; |
48b84f18 BG |
195 | |
196 | /* | |
197 | * If we timed out, the AP or the local radio may be busy. | |
198 | * So, wait a second until scanning again. | |
199 | */ | |
200 | wpa_supplicant_req_scan(wpa_s, 1, 0); | |
99fcd404 | 201 | |
f85f545e | 202 | wpas_p2p_continue_after_scan(wpa_s); |
6fc6879b JM |
203 | } |
204 | ||
205 | ||
206 | /** | |
207 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
208 | * @wpa_s: Pointer to wpa_supplicant data | |
209 | * @sec: Number of seconds after which to time out authentication | |
210 | * @usec: Number of microseconds after which to time out authentication | |
211 | * | |
212 | * This function is used to schedule a timeout for the current authentication | |
213 | * attempt. | |
214 | */ | |
215 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
216 | int sec, int usec) | |
217 | { | |
c2a04078 JM |
218 | if (wpa_s->conf && wpa_s->conf->ap_scan == 0 && |
219 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
6fc6879b JM |
220 | return; |
221 | ||
f049052b | 222 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " |
6fc6879b JM |
223 | "%d usec", sec, usec); |
224 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
225 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
226 | } | |
227 | ||
228 | ||
229 | /** | |
230 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
231 | * @wpa_s: Pointer to wpa_supplicant data | |
232 | * | |
233 | * This function is used to cancel authentication timeout scheduled with | |
234 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
235 | * been completed. | |
236 | */ | |
237 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
238 | { | |
f049052b | 239 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); |
6fc6879b JM |
240 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); |
241 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
242 | } | |
243 | ||
244 | ||
245 | /** | |
246 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
247 | * @wpa_s: Pointer to wpa_supplicant data | |
248 | * | |
249 | * This function is used to configure EAPOL state machine based on the selected | |
250 | * authentication mode. | |
251 | */ | |
252 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
253 | { | |
254 | #ifdef IEEE8021X_EAPOL | |
255 | struct eapol_config eapol_conf; | |
256 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
257 | ||
53895c3b | 258 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 259 | if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
260 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
261 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
262 | /* | |
263 | * RSN IBSS authentication is per-STA and we can disable the | |
264 | * per-BSSID EAPOL authentication. | |
265 | */ | |
266 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
267 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
268 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
269 | return; | |
270 | } | |
271 | #endif /* CONFIG_IBSS_RSN */ | |
272 | ||
0a40ec6a JM |
273 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
274 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
275 | ||
6fc6879b JM |
276 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
277 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
278 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
279 | else | |
280 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
281 | ||
282 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
283 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
284 | eapol_conf.accept_802_1x_keys = 1; | |
285 | eapol_conf.required_keys = 0; | |
286 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
287 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
288 | } | |
289 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
290 | eapol_conf.required_keys |= | |
291 | EAPOL_REQUIRE_KEY_BROADCAST; | |
292 | } | |
293 | ||
c2a04078 | 294 | if (wpa_s->conf && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) |
6fc6879b | 295 | eapol_conf.required_keys = 0; |
6fc6879b JM |
296 | } |
297 | if (wpa_s->conf) | |
298 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
299 | eapol_conf.workaround = ssid->eap_workaround; | |
56586197 JM |
300 | eapol_conf.eap_disabled = |
301 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
ad08c363 JM |
302 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && |
303 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
6fc6879b JM |
304 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); |
305 | #endif /* IEEE8021X_EAPOL */ | |
306 | } | |
307 | ||
308 | ||
309 | /** | |
310 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
311 | * @wpa_s: Pointer to wpa_supplicant data | |
312 | * @ssid: Configuration data for the network | |
313 | * | |
314 | * This function is used to configure WPA state machine and related parameters | |
315 | * to a mode where WPA is not enabled. This is called as part of the | |
316 | * authentication configuration when the selected network does not use WPA. | |
317 | */ | |
318 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
319 | struct wpa_ssid *ssid) | |
320 | { | |
321 | int i; | |
322 | ||
ad08c363 JM |
323 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) |
324 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
325 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
6fc6879b JM |
326 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; |
327 | else | |
328 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
329 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
330 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
331 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
332 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
333 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
334 | wpa_s->mgmt_group_cipher = 0; | |
335 | ||
336 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
337 | if (ssid->wep_key_len[i] > 5) { | |
338 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
339 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
340 | break; | |
341 | } else if (ssid->wep_key_len[i] > 0) { | |
342 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
343 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
344 | break; | |
345 | } | |
346 | } | |
347 | ||
348 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
349 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
350 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
351 | wpa_s->pairwise_cipher); | |
352 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
353 | #ifdef CONFIG_IEEE80211W | |
354 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
355 | wpa_s->mgmt_group_cipher); | |
356 | #endif /* CONFIG_IEEE80211W */ | |
357 | ||
358 | pmksa_cache_clear_current(wpa_s->wpa); | |
359 | } | |
360 | ||
361 | ||
6979582c | 362 | void free_hw_features(struct wpa_supplicant *wpa_s) |
6bf731e8 CL |
363 | { |
364 | int i; | |
365 | if (wpa_s->hw.modes == NULL) | |
366 | return; | |
367 | ||
368 | for (i = 0; i < wpa_s->hw.num_modes; i++) { | |
369 | os_free(wpa_s->hw.modes[i].channels); | |
370 | os_free(wpa_s->hw.modes[i].rates); | |
371 | } | |
372 | ||
373 | os_free(wpa_s->hw.modes); | |
374 | wpa_s->hw.modes = NULL; | |
375 | } | |
376 | ||
377 | ||
6fc6879b JM |
378 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) |
379 | { | |
60b94c98 | 380 | bgscan_deinit(wpa_s); |
7c865c68 | 381 | autoscan_deinit(wpa_s); |
6fc6879b JM |
382 | scard_deinit(wpa_s->scard); |
383 | wpa_s->scard = NULL; | |
384 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
385 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
386 | l2_packet_deinit(wpa_s->l2); | |
387 | wpa_s->l2 = NULL; | |
388 | if (wpa_s->l2_br) { | |
389 | l2_packet_deinit(wpa_s->l2_br); | |
390 | wpa_s->l2_br = NULL; | |
391 | } | |
392 | ||
6fc6879b | 393 | if (wpa_s->conf != NULL) { |
8e56d189 JM |
394 | struct wpa_ssid *ssid; |
395 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
396 | wpas_notify_network_removed(wpa_s, ssid); | |
6fc6879b JM |
397 | } |
398 | ||
399 | os_free(wpa_s->confname); | |
400 | wpa_s->confname = NULL; | |
401 | ||
e6304cad DS |
402 | os_free(wpa_s->confanother); |
403 | wpa_s->confanother = NULL; | |
404 | ||
6fc6879b JM |
405 | wpa_sm_set_eapol(wpa_s->wpa, NULL); |
406 | eapol_sm_deinit(wpa_s->eapol); | |
407 | wpa_s->eapol = NULL; | |
408 | ||
409 | rsn_preauth_deinit(wpa_s->wpa); | |
410 | ||
281ff0aa GP |
411 | #ifdef CONFIG_TDLS |
412 | wpa_tdls_deinit(wpa_s->wpa); | |
413 | #endif /* CONFIG_TDLS */ | |
414 | ||
6fc6879b JM |
415 | pmksa_candidate_free(wpa_s->wpa); |
416 | wpa_sm_deinit(wpa_s->wpa); | |
417 | wpa_s->wpa = NULL; | |
418 | wpa_blacklist_clear(wpa_s); | |
419 | ||
83922c2d | 420 | wpa_bss_deinit(wpa_s); |
6fc6879b JM |
421 | |
422 | wpa_supplicant_cancel_scan(wpa_s); | |
423 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
01a17491 JM |
424 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); |
425 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
426 | eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, | |
427 | wpa_s, NULL); | |
428 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
6fc6879b | 429 | |
116654ce | 430 | wpas_wps_deinit(wpa_s); |
11ef8d35 | 431 | |
1ff73338 JM |
432 | wpabuf_free(wpa_s->pending_eapol_rx); |
433 | wpa_s->pending_eapol_rx = NULL; | |
434 | ||
11ef8d35 JM |
435 | #ifdef CONFIG_IBSS_RSN |
436 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
437 | wpa_s->ibss_rsn = NULL; | |
438 | #endif /* CONFIG_IBSS_RSN */ | |
c2a04078 | 439 | |
e29853bb | 440 | sme_deinit(wpa_s); |
2d5b792d JM |
441 | |
442 | #ifdef CONFIG_AP | |
443 | wpa_supplicant_ap_deinit(wpa_s); | |
444 | #endif /* CONFIG_AP */ | |
b22128ef JM |
445 | |
446 | #ifdef CONFIG_P2P | |
447 | wpas_p2p_deinit(wpa_s); | |
448 | #endif /* CONFIG_P2P */ | |
f47d639d | 449 | |
24f6497c JM |
450 | #ifdef CONFIG_OFFCHANNEL |
451 | offchannel_deinit(wpa_s); | |
452 | #endif /* CONFIG_OFFCHANNEL */ | |
453 | ||
a4cba8f1 LC |
454 | wpa_supplicant_cancel_sched_scan(wpa_s); |
455 | ||
f47d639d JM |
456 | os_free(wpa_s->next_scan_freqs); |
457 | wpa_s->next_scan_freqs = NULL; | |
04ea7b79 JM |
458 | |
459 | gas_query_deinit(wpa_s->gas); | |
460 | wpa_s->gas = NULL; | |
6bf731e8 CL |
461 | |
462 | free_hw_features(wpa_s); | |
d445a5cd JM |
463 | |
464 | os_free(wpa_s->bssid_filter); | |
465 | wpa_s->bssid_filter = NULL; | |
b6668734 | 466 | |
6407f413 JM |
467 | os_free(wpa_s->disallow_aps_bssid); |
468 | wpa_s->disallow_aps_bssid = NULL; | |
469 | os_free(wpa_s->disallow_aps_ssid); | |
470 | wpa_s->disallow_aps_ssid = NULL; | |
471 | ||
b6668734 | 472 | wnm_bss_keep_alive_deinit(wpa_s); |
306ae225 JM |
473 | |
474 | ext_password_deinit(wpa_s->ext_pw); | |
475 | wpa_s->ext_pw = NULL; | |
b1f12296 JM |
476 | |
477 | wpabuf_free(wpa_s->last_gas_resp); | |
a297201d JM |
478 | |
479 | os_free(wpa_s->last_scan_res); | |
480 | wpa_s->last_scan_res = NULL; | |
6fc6879b JM |
481 | } |
482 | ||
483 | ||
484 | /** | |
485 | * wpa_clear_keys - Clear keys configured for the driver | |
486 | * @wpa_s: Pointer to wpa_supplicant data | |
487 | * @addr: Previously used BSSID or %NULL if not available | |
488 | * | |
489 | * This function clears the encryption keys that has been previously configured | |
490 | * for the driver. | |
491 | */ | |
492 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
493 | { | |
6fc6879b JM |
494 | if (wpa_s->keys_cleared) { |
495 | /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have | |
496 | * timing issues with keys being cleared just before new keys | |
497 | * are set or just after association or something similar. This | |
498 | * shows up in group key handshake failing often because of the | |
499 | * client not receiving the first encrypted packets correctly. | |
500 | * Skipping some of the extra key clearing steps seems to help | |
501 | * in completing group key handshake more reliably. */ | |
f049052b BG |
502 | wpa_dbg(wpa_s, MSG_DEBUG, "No keys have been configured - " |
503 | "skip key clearing"); | |
6fc6879b JM |
504 | return; |
505 | } | |
506 | ||
507 | /* MLME-DELETEKEYS.request */ | |
0382097e JM |
508 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 0, 0, NULL, 0, NULL, 0); |
509 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 1, 0, NULL, 0, NULL, 0); | |
510 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 2, 0, NULL, 0, NULL, 0); | |
511 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 3, 0, NULL, 0, NULL, 0); | |
0e27f655 | 512 | #ifdef CONFIG_IEEE80211W |
0382097e JM |
513 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 4, 0, NULL, 0, NULL, 0); |
514 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, 5, 0, NULL, 0, NULL, 0); | |
0e27f655 | 515 | #endif /* CONFIG_IEEE80211W */ |
6fc6879b JM |
516 | if (addr) { |
517 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
518 | 0); | |
519 | /* MLME-SETPROTECTION.request(None) */ | |
520 | wpa_drv_mlme_setprotection( | |
521 | wpa_s, addr, | |
522 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
523 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
524 | } | |
525 | wpa_s->keys_cleared = 1; | |
526 | } | |
527 | ||
528 | ||
529 | /** | |
530 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
531 | * @state: State (wpa_state; WPA_*) | |
532 | * Returns: The state name as a printable text string | |
533 | */ | |
71934751 | 534 | const char * wpa_supplicant_state_txt(enum wpa_states state) |
6fc6879b JM |
535 | { |
536 | switch (state) { | |
537 | case WPA_DISCONNECTED: | |
538 | return "DISCONNECTED"; | |
539 | case WPA_INACTIVE: | |
540 | return "INACTIVE"; | |
8401a6b0 JM |
541 | case WPA_INTERFACE_DISABLED: |
542 | return "INTERFACE_DISABLED"; | |
6fc6879b JM |
543 | case WPA_SCANNING: |
544 | return "SCANNING"; | |
c2a04078 JM |
545 | case WPA_AUTHENTICATING: |
546 | return "AUTHENTICATING"; | |
6fc6879b JM |
547 | case WPA_ASSOCIATING: |
548 | return "ASSOCIATING"; | |
549 | case WPA_ASSOCIATED: | |
550 | return "ASSOCIATED"; | |
551 | case WPA_4WAY_HANDSHAKE: | |
552 | return "4WAY_HANDSHAKE"; | |
553 | case WPA_GROUP_HANDSHAKE: | |
554 | return "GROUP_HANDSHAKE"; | |
555 | case WPA_COMPLETED: | |
556 | return "COMPLETED"; | |
557 | default: | |
558 | return "UNKNOWN"; | |
559 | } | |
560 | } | |
561 | ||
562 | ||
cfe53c9a PS |
563 | #ifdef CONFIG_BGSCAN |
564 | ||
565 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
566 | { | |
0096c427 JM |
567 | if (wpas_driver_bss_selection(wpa_s)) |
568 | return; | |
cfe53c9a PS |
569 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) |
570 | return; | |
571 | ||
572 | bgscan_deinit(wpa_s); | |
573 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { | |
574 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { | |
575 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
576 | "bgscan"); | |
577 | /* | |
578 | * Live without bgscan; it is only used as a roaming | |
579 | * optimization, so the initial connection is not | |
580 | * affected. | |
581 | */ | |
6409b7a7 YD |
582 | } else { |
583 | struct wpa_scan_results *scan_res; | |
cfe53c9a | 584 | wpa_s->bgscan_ssid = wpa_s->current_ssid; |
6409b7a7 YD |
585 | scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, |
586 | 0); | |
587 | if (scan_res) { | |
588 | bgscan_notify_scan(wpa_s, scan_res); | |
589 | wpa_scan_results_free(scan_res); | |
590 | } | |
591 | } | |
cfe53c9a PS |
592 | } else |
593 | wpa_s->bgscan_ssid = NULL; | |
594 | } | |
595 | ||
596 | ||
597 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
598 | { | |
599 | if (wpa_s->bgscan_ssid != NULL) { | |
600 | bgscan_deinit(wpa_s); | |
601 | wpa_s->bgscan_ssid = NULL; | |
602 | } | |
603 | } | |
604 | ||
605 | #endif /* CONFIG_BGSCAN */ | |
606 | ||
607 | ||
7c865c68 TB |
608 | static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s) |
609 | { | |
99218999 | 610 | if (autoscan_init(wpa_s, 0)) |
7c865c68 TB |
611 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan"); |
612 | } | |
613 | ||
614 | ||
615 | static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s) | |
616 | { | |
617 | autoscan_deinit(wpa_s); | |
618 | } | |
619 | ||
620 | ||
c3d12238 JM |
621 | void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s) |
622 | { | |
623 | if (wpa_s->wpa_state == WPA_DISCONNECTED || | |
624 | wpa_s->wpa_state == WPA_SCANNING) { | |
625 | autoscan_deinit(wpa_s); | |
626 | wpa_supplicant_start_autoscan(wpa_s); | |
627 | } | |
628 | } | |
629 | ||
630 | ||
6fc6879b JM |
631 | /** |
632 | * wpa_supplicant_set_state - Set current connection state | |
633 | * @wpa_s: Pointer to wpa_supplicant data | |
634 | * @state: The new connection state | |
635 | * | |
636 | * This function is called whenever the connection state changes, e.g., | |
637 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
638 | */ | |
71934751 JM |
639 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, |
640 | enum wpa_states state) | |
6fc6879b | 641 | { |
27f43d8d MH |
642 | enum wpa_states old_state = wpa_s->wpa_state; |
643 | ||
f049052b BG |
644 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", |
645 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
646 | wpa_supplicant_state_txt(state)); | |
6fc6879b | 647 | |
cb8564b1 DW |
648 | if (state != WPA_SCANNING) |
649 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
650 | ||
6fc6879b | 651 | if (state == WPA_COMPLETED && wpa_s->new_connection) { |
6fc6879b | 652 | struct wpa_ssid *ssid = wpa_s->current_ssid; |
7d37a357 | 653 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) |
6fc6879b | 654 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " |
1cfc6787 JM |
655 | MACSTR " completed [id=%d id_str=%s]", |
656 | MAC2STR(wpa_s->bssid), | |
6fc6879b JM |
657 | ssid ? ssid->id : -1, |
658 | ssid && ssid->id_str ? ssid->id_str : ""); | |
659 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
00e5e3d5 | 660 | wpas_clear_temp_disabled(wpa_s, ssid, 1); |
f1a52633 | 661 | wpa_s->extra_blacklist_count = 0; |
6fc6879b | 662 | wpa_s->new_connection = 0; |
6fc6879b | 663 | wpa_drv_set_operstate(wpa_s, 1); |
99ac2913 FF |
664 | #ifndef IEEE8021X_EAPOL |
665 | wpa_drv_set_supp_port(wpa_s, 1); | |
666 | #endif /* IEEE8021X_EAPOL */ | |
17a4734d | 667 | wpa_s->after_wps = 0; |
b22128ef JM |
668 | #ifdef CONFIG_P2P |
669 | wpas_p2p_completed(wpa_s); | |
670 | #endif /* CONFIG_P2P */ | |
c3701c66 RM |
671 | |
672 | sme_sched_obss_scan(wpa_s, 1); | |
6fc6879b JM |
673 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || |
674 | state == WPA_ASSOCIATED) { | |
675 | wpa_s->new_connection = 1; | |
676 | wpa_drv_set_operstate(wpa_s, 0); | |
99ac2913 FF |
677 | #ifndef IEEE8021X_EAPOL |
678 | wpa_drv_set_supp_port(wpa_s, 0); | |
679 | #endif /* IEEE8021X_EAPOL */ | |
c3701c66 | 680 | sme_sched_obss_scan(wpa_s, 0); |
6fc6879b JM |
681 | } |
682 | wpa_s->wpa_state = state; | |
27f43d8d | 683 | |
cfe53c9a PS |
684 | #ifdef CONFIG_BGSCAN |
685 | if (state == WPA_COMPLETED) | |
686 | wpa_supplicant_start_bgscan(wpa_s); | |
687 | else | |
688 | wpa_supplicant_stop_bgscan(wpa_s); | |
689 | #endif /* CONFIG_BGSCAN */ | |
690 | ||
7c865c68 TB |
691 | if (state == WPA_AUTHENTICATING) |
692 | wpa_supplicant_stop_autoscan(wpa_s); | |
693 | ||
694 | if (state == WPA_DISCONNECTED || state == WPA_INACTIVE) | |
695 | wpa_supplicant_start_autoscan(wpa_s); | |
696 | ||
5bbf9f10 | 697 | if (wpa_s->wpa_state != old_state) { |
27f43d8d | 698 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); |
5bbf9f10 PS |
699 | |
700 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
701 | old_state == WPA_COMPLETED) | |
702 | wpas_notify_auth_changed(wpa_s); | |
703 | } | |
6fc6879b JM |
704 | } |
705 | ||
706 | ||
1a1bf008 JM |
707 | void wpa_supplicant_terminate_proc(struct wpa_global *global) |
708 | { | |
709 | int pending = 0; | |
710 | #ifdef CONFIG_WPS | |
711 | struct wpa_supplicant *wpa_s = global->ifaces; | |
712 | while (wpa_s) { | |
713 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
714 | pending = 1; | |
715 | wpa_s = wpa_s->next; | |
716 | } | |
717 | #endif /* CONFIG_WPS */ | |
718 | if (pending) | |
719 | return; | |
720 | eloop_terminate(); | |
721 | } | |
722 | ||
723 | ||
0456ea16 | 724 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) |
6fc6879b | 725 | { |
0456ea16 | 726 | struct wpa_global *global = signal_ctx; |
1a1bf008 | 727 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
728 | } |
729 | ||
730 | ||
b22128ef | 731 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) |
6fc6879b | 732 | { |
71934751 | 733 | enum wpa_states old_state = wpa_s->wpa_state; |
27f43d8d | 734 | |
6fc6879b JM |
735 | wpa_s->pairwise_cipher = 0; |
736 | wpa_s->group_cipher = 0; | |
737 | wpa_s->mgmt_group_cipher = 0; | |
738 | wpa_s->key_mgmt = 0; | |
8401a6b0 | 739 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) |
99218999 | 740 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
27f43d8d MH |
741 | |
742 | if (wpa_s->wpa_state != old_state) | |
743 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
6fc6879b JM |
744 | } |
745 | ||
746 | ||
747 | /** | |
748 | * wpa_supplicant_reload_configuration - Reload configuration data | |
749 | * @wpa_s: Pointer to wpa_supplicant data | |
750 | * Returns: 0 on success or -1 if configuration parsing failed | |
751 | * | |
752 | * This function can be used to request that the configuration data is reloaded | |
753 | * (e.g., after configuration file change). This function is reloading | |
754 | * configuration only for one interface, so this may need to be called multiple | |
755 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
756 | * interfaces need reconfiguration. | |
757 | */ | |
758 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
759 | { | |
760 | struct wpa_config *conf; | |
761 | int reconf_ctrl; | |
8bac466b JM |
762 | int old_ap_scan; |
763 | ||
6fc6879b JM |
764 | if (wpa_s->confname == NULL) |
765 | return -1; | |
e6304cad | 766 | conf = wpa_config_read(wpa_s->confname, NULL); |
6fc6879b JM |
767 | if (conf == NULL) { |
768 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
769 | "file '%s' - exiting", wpa_s->confname); | |
770 | return -1; | |
771 | } | |
e6304cad DS |
772 | wpa_config_read(wpa_s->confanother, conf); |
773 | ||
611aea7d | 774 | conf->changed_parameters = (unsigned int) -1; |
6fc6879b JM |
775 | |
776 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
777 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
778 | os_strcmp(conf->ctrl_interface, | |
779 | wpa_s->conf->ctrl_interface) != 0); | |
780 | ||
781 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
782 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
783 | wpa_s->ctrl_iface = NULL; | |
784 | } | |
785 | ||
786 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
7b7ce8aa JM |
787 | if (wpa_s->current_ssid) { |
788 | wpa_supplicant_deauthenticate(wpa_s, | |
789 | WLAN_REASON_DEAUTH_LEAVING); | |
790 | } | |
8bac466b | 791 | |
6fc6879b JM |
792 | /* |
793 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
794 | * pkcs11_engine_path, pkcs11_module_path. | |
795 | */ | |
56586197 | 796 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
797 | /* |
798 | * Clear forced success to clear EAP state for next | |
799 | * authentication. | |
800 | */ | |
801 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
802 | } | |
803 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
804 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
d8a790b9 | 805 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); |
6fc6879b JM |
806 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); |
807 | rsn_preauth_deinit(wpa_s->wpa); | |
8bac466b JM |
808 | |
809 | old_ap_scan = wpa_s->conf->ap_scan; | |
6fc6879b JM |
810 | wpa_config_free(wpa_s->conf); |
811 | wpa_s->conf = conf; | |
8bac466b JM |
812 | if (old_ap_scan != wpa_s->conf->ap_scan) |
813 | wpas_notify_ap_scan_changed(wpa_s); | |
814 | ||
6fc6879b JM |
815 | if (reconf_ctrl) |
816 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
817 | ||
611aea7d JM |
818 | wpa_supplicant_update_config(wpa_s); |
819 | ||
6fc6879b | 820 | wpa_supplicant_clear_status(wpa_s); |
349493bd | 821 | if (wpa_supplicant_enabled_networks(wpa_s)) { |
43a38635 JM |
822 | wpa_s->reassociate = 1; |
823 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
824 | } | |
f049052b | 825 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); |
6fc6879b JM |
826 | return 0; |
827 | } | |
828 | ||
829 | ||
0456ea16 | 830 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) |
6fc6879b | 831 | { |
0456ea16 | 832 | struct wpa_global *global = signal_ctx; |
6fc6879b | 833 | struct wpa_supplicant *wpa_s; |
6fc6879b | 834 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { |
f049052b BG |
835 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", |
836 | sig); | |
6fc6879b | 837 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { |
1a1bf008 | 838 | wpa_supplicant_terminate_proc(global); |
6fc6879b JM |
839 | } |
840 | } | |
841 | } | |
842 | ||
843 | ||
508545f3 | 844 | enum wpa_key_mgmt key_mgmt2driver(int key_mgmt) |
6fc6879b JM |
845 | { |
846 | switch (key_mgmt) { | |
847 | case WPA_KEY_MGMT_NONE: | |
848 | return KEY_MGMT_NONE; | |
849 | case WPA_KEY_MGMT_IEEE8021X_NO_WPA: | |
850 | return KEY_MGMT_802_1X_NO_WPA; | |
851 | case WPA_KEY_MGMT_IEEE8021X: | |
852 | return KEY_MGMT_802_1X; | |
853 | case WPA_KEY_MGMT_WPA_NONE: | |
854 | return KEY_MGMT_WPA_NONE; | |
855 | case WPA_KEY_MGMT_FT_IEEE8021X: | |
856 | return KEY_MGMT_FT_802_1X; | |
857 | case WPA_KEY_MGMT_FT_PSK: | |
858 | return KEY_MGMT_FT_PSK; | |
56586197 JM |
859 | case WPA_KEY_MGMT_IEEE8021X_SHA256: |
860 | return KEY_MGMT_802_1X_SHA256; | |
861 | case WPA_KEY_MGMT_PSK_SHA256: | |
862 | return KEY_MGMT_PSK_SHA256; | |
ad08c363 JM |
863 | case WPA_KEY_MGMT_WPS: |
864 | return KEY_MGMT_WPS; | |
6fc6879b JM |
865 | case WPA_KEY_MGMT_PSK: |
866 | default: | |
867 | return KEY_MGMT_PSK; | |
868 | } | |
869 | } | |
870 | ||
871 | ||
872 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
873 | struct wpa_ssid *ssid, | |
874 | struct wpa_ie_data *ie) | |
875 | { | |
876 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
877 | if (ret) { | |
878 | if (ret == -2) { | |
879 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
880 | "from association info"); | |
881 | } | |
882 | return -1; | |
883 | } | |
884 | ||
f049052b BG |
885 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " |
886 | "cipher suites"); | |
6fc6879b JM |
887 | if (!(ie->group_cipher & ssid->group_cipher)) { |
888 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
889 | "cipher 0x%x (mask 0x%x) - reject", | |
890 | ie->group_cipher, ssid->group_cipher); | |
891 | return -1; | |
892 | } | |
893 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
894 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
895 | "cipher 0x%x (mask 0x%x) - reject", | |
896 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
897 | return -1; | |
898 | } | |
899 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
900 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
901 | "management 0x%x (mask 0x%x) - reject", | |
902 | ie->key_mgmt, ssid->key_mgmt); | |
903 | return -1; | |
904 | } | |
905 | ||
906 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 907 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && |
62d49803 JM |
908 | (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? |
909 | wpa_s->conf->pmf : ssid->ieee80211w) == | |
910 | MGMT_FRAME_PROTECTION_REQUIRED) { | |
6fc6879b JM |
911 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " |
912 | "that does not support management frame protection - " | |
913 | "reject"); | |
914 | return -1; | |
915 | } | |
916 | #endif /* CONFIG_IEEE80211W */ | |
917 | ||
918 | return 0; | |
919 | } | |
920 | ||
921 | ||
922 | /** | |
923 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
924 | * @wpa_s: Pointer to wpa_supplicant data | |
925 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
926 | * @ssid: Configuration data for the selected network | |
927 | * @wpa_ie: Buffer for the WPA/RSN IE | |
928 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
929 | * used buffer length in case the functions returns success. | |
930 | * Returns: 0 on success or -1 on failure | |
931 | * | |
932 | * This function is used to configure authentication and encryption parameters | |
933 | * based on the network configuration and scan result for the selected BSS (if | |
934 | * available). | |
935 | */ | |
936 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 937 | struct wpa_bss *bss, struct wpa_ssid *ssid, |
6fc6879b JM |
938 | u8 *wpa_ie, size_t *wpa_ie_len) |
939 | { | |
940 | struct wpa_ie_data ie; | |
941 | int sel, proto; | |
942 | const u8 *bss_wpa, *bss_rsn; | |
943 | ||
944 | if (bss) { | |
6fa81a3b JM |
945 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
946 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
6fc6879b JM |
947 | } else |
948 | bss_wpa = bss_rsn = NULL; | |
949 | ||
950 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
951 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
952 | (ie.group_cipher & ssid->group_cipher) && | |
953 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
954 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 955 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); |
6fc6879b JM |
956 | proto = WPA_PROTO_RSN; |
957 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
958 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
959 | (ie.group_cipher & ssid->group_cipher) && | |
960 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
961 | (ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b | 962 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); |
6fc6879b JM |
963 | proto = WPA_PROTO_WPA; |
964 | } else if (bss) { | |
965 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
966 | return -1; | |
967 | } else { | |
968 | if (ssid->proto & WPA_PROTO_RSN) | |
969 | proto = WPA_PROTO_RSN; | |
970 | else | |
971 | proto = WPA_PROTO_WPA; | |
972 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
973 | os_memset(&ie, 0, sizeof(ie)); | |
974 | ie.group_cipher = ssid->group_cipher; | |
975 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
976 | ie.key_mgmt = ssid->key_mgmt; | |
977 | #ifdef CONFIG_IEEE80211W | |
978 | ie.mgmt_group_cipher = | |
70f8cc8e | 979 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? |
6fc6879b JM |
980 | WPA_CIPHER_AES_128_CMAC : 0; |
981 | #endif /* CONFIG_IEEE80211W */ | |
f049052b BG |
982 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " |
983 | "based on configuration"); | |
6fc6879b JM |
984 | } else |
985 | proto = ie.proto; | |
986 | } | |
987 | ||
f049052b BG |
988 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " |
989 | "pairwise %d key_mgmt %d proto %d", | |
990 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
6fc6879b JM |
991 | #ifdef CONFIG_IEEE80211W |
992 | if (ssid->ieee80211w) { | |
f049052b BG |
993 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", |
994 | ie.mgmt_group_cipher); | |
6fc6879b JM |
995 | } |
996 | #endif /* CONFIG_IEEE80211W */ | |
997 | ||
64fa840a | 998 | wpa_s->wpa_proto = proto; |
6fc6879b JM |
999 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); |
1000 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
1001 | !!(ssid->proto & WPA_PROTO_RSN)); | |
1002 | ||
1003 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
1004 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
1005 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
1006 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
1007 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
1008 | return -1; | |
1009 | } | |
1010 | ||
1011 | sel = ie.group_cipher & ssid->group_cipher; | |
edbd2a19 JM |
1012 | wpa_s->group_cipher = wpa_pick_group_cipher(sel); |
1013 | if (wpa_s->group_cipher < 0) { | |
f049052b BG |
1014 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " |
1015 | "cipher"); | |
6fc6879b JM |
1016 | return -1; |
1017 | } | |
edbd2a19 JM |
1018 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s", |
1019 | wpa_cipher_txt(wpa_s->group_cipher)); | |
6fc6879b JM |
1020 | |
1021 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
edbd2a19 JM |
1022 | wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1); |
1023 | if (wpa_s->pairwise_cipher < 0) { | |
f049052b BG |
1024 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " |
1025 | "cipher"); | |
6fc6879b JM |
1026 | return -1; |
1027 | } | |
edbd2a19 JM |
1028 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s", |
1029 | wpa_cipher_txt(wpa_s->pairwise_cipher)); | |
6fc6879b JM |
1030 | |
1031 | sel = ie.key_mgmt & ssid->key_mgmt; | |
c10347f2 JM |
1032 | #ifdef CONFIG_SAE |
1033 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) | |
1034 | sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE); | |
1035 | #endif /* CONFIG_SAE */ | |
6fc6879b JM |
1036 | if (0) { |
1037 | #ifdef CONFIG_IEEE80211R | |
1038 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
1039 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
f049052b | 1040 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); |
6fc6879b JM |
1041 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { |
1042 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
f049052b | 1043 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); |
6fc6879b | 1044 | #endif /* CONFIG_IEEE80211R */ |
c10347f2 JM |
1045 | #ifdef CONFIG_SAE |
1046 | } else if (sel & WPA_KEY_MGMT_SAE) { | |
1047 | wpa_s->key_mgmt = WPA_KEY_MGMT_SAE; | |
1048 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE"); | |
1049 | } else if (sel & WPA_KEY_MGMT_FT_SAE) { | |
1050 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE; | |
1051 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE"); | |
1052 | #endif /* CONFIG_SAE */ | |
56586197 JM |
1053 | #ifdef CONFIG_IEEE80211W |
1054 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
1055 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
f049052b | 1056 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1057 | "WPA: using KEY_MGMT 802.1X with SHA256"); |
1058 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1059 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
f049052b | 1060 | wpa_dbg(wpa_s, MSG_DEBUG, |
56586197 JM |
1061 | "WPA: using KEY_MGMT PSK with SHA256"); |
1062 | #endif /* CONFIG_IEEE80211W */ | |
6fc6879b JM |
1063 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { |
1064 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
f049052b | 1065 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); |
6fc6879b JM |
1066 | } else if (sel & WPA_KEY_MGMT_PSK) { |
1067 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
f049052b | 1068 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); |
6fc6879b JM |
1069 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { |
1070 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
f049052b | 1071 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); |
6fc6879b | 1072 | } else { |
f049052b BG |
1073 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " |
1074 | "authenticated key management type"); | |
6fc6879b JM |
1075 | return -1; |
1076 | } | |
1077 | ||
1078 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1079 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1080 | wpa_s->pairwise_cipher); | |
1081 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1082 | ||
1083 | #ifdef CONFIG_IEEE80211W | |
1084 | sel = ie.mgmt_group_cipher; | |
62d49803 JM |
1085 | if ((ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? |
1086 | wpa_s->conf->pmf : ssid->ieee80211w) == NO_MGMT_FRAME_PROTECTION || | |
0b60b0aa | 1087 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) |
6fc6879b JM |
1088 | sel = 0; |
1089 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1090 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
f049052b | 1091 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " |
6fc6879b JM |
1092 | "AES-128-CMAC"); |
1093 | } else { | |
1094 | wpa_s->mgmt_group_cipher = 0; | |
f049052b | 1095 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); |
6fc6879b JM |
1096 | } |
1097 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1098 | wpa_s->mgmt_group_cipher); | |
62d49803 JM |
1099 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, |
1100 | (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1101 | wpa_s->conf->pmf : ssid->ieee80211w)); | |
6fc6879b JM |
1102 | #endif /* CONFIG_IEEE80211W */ |
1103 | ||
1104 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
f049052b | 1105 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); |
6fc6879b JM |
1106 | return -1; |
1107 | } | |
1108 | ||
0bf927a0 | 1109 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { |
6fc6879b | 1110 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); |
7d232e23 ZC |
1111 | #ifndef CONFIG_NO_PBKDF2 |
1112 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && | |
1113 | ssid->passphrase) { | |
1114 | u8 psk[PMK_LEN]; | |
986de33d JM |
1115 | pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len, |
1116 | 4096, psk, PMK_LEN); | |
7d232e23 ZC |
1117 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", |
1118 | psk, PMK_LEN); | |
1119 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1120 | } | |
1121 | #endif /* CONFIG_NO_PBKDF2 */ | |
9173b16f JM |
1122 | #ifdef CONFIG_EXT_PASSWORD |
1123 | if (ssid->ext_psk) { | |
1124 | struct wpabuf *pw = ext_password_get(wpa_s->ext_pw, | |
1125 | ssid->ext_psk); | |
1126 | char pw_str[64 + 1]; | |
1127 | u8 psk[PMK_LEN]; | |
1128 | ||
1129 | if (pw == NULL) { | |
1130 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK " | |
1131 | "found from external storage"); | |
1132 | return -1; | |
1133 | } | |
1134 | ||
1135 | if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) { | |
1136 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected " | |
1137 | "PSK length %d in external storage", | |
1138 | (int) wpabuf_len(pw)); | |
1139 | ext_password_free(pw); | |
1140 | return -1; | |
1141 | } | |
1142 | ||
1143 | os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw)); | |
1144 | pw_str[wpabuf_len(pw)] = '\0'; | |
1145 | ||
1146 | #ifndef CONFIG_NO_PBKDF2 | |
1147 | if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss) | |
1148 | { | |
986de33d JM |
1149 | pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len, |
1150 | 4096, psk, PMK_LEN); | |
9173b16f JM |
1151 | os_memset(pw_str, 0, sizeof(pw_str)); |
1152 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from " | |
1153 | "external passphrase)", | |
1154 | psk, PMK_LEN); | |
1155 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1156 | } else | |
1157 | #endif /* CONFIG_NO_PBKDF2 */ | |
1158 | if (wpabuf_len(pw) == 2 * PMK_LEN) { | |
1159 | if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) { | |
1160 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: " | |
1161 | "Invalid PSK hex string"); | |
1162 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1163 | ext_password_free(pw); | |
1164 | return -1; | |
1165 | } | |
1166 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1167 | } else { | |
1168 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable " | |
1169 | "PSK available"); | |
1170 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1171 | ext_password_free(pw); | |
1172 | return -1; | |
1173 | } | |
1174 | ||
1175 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1176 | ext_password_free(pw); | |
1177 | } | |
1178 | #endif /* CONFIG_EXT_PASSWORD */ | |
7d232e23 | 1179 | } else |
6fc6879b JM |
1180 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); |
1181 | ||
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | ||
8cd6b7bc | 1186 | static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx) |
03e47c9c | 1187 | { |
8cd6b7bc | 1188 | *pos = 0x00; |
03e47c9c | 1189 | |
8cd6b7bc JB |
1190 | switch (idx) { |
1191 | case 0: /* Bits 0-7 */ | |
1192 | break; | |
1193 | case 1: /* Bits 8-15 */ | |
1194 | break; | |
1195 | case 2: /* Bits 16-23 */ | |
1196 | #ifdef CONFIG_WNM | |
1197 | *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */ | |
1198 | *pos |= 0x08; /* Bit 19 - BSS Transition */ | |
1199 | #endif /* CONFIG_WNM */ | |
1200 | break; | |
1201 | case 3: /* Bits 24-31 */ | |
1202 | #ifdef CONFIG_WNM | |
1203 | *pos |= 0x02; /* Bit 25 - SSID List */ | |
1204 | #endif /* CONFIG_WNM */ | |
03e47c9c | 1205 | #ifdef CONFIG_INTERWORKING |
8cd6b7bc JB |
1206 | if (wpa_s->conf->interworking) |
1207 | *pos |= 0x80; /* Bit 31 - Interworking */ | |
03e47c9c | 1208 | #endif /* CONFIG_INTERWORKING */ |
8cd6b7bc JB |
1209 | break; |
1210 | case 4: /* Bits 32-39 */ | |
1211 | break; | |
1212 | case 5: /* Bits 40-47 */ | |
1213 | break; | |
1214 | case 6: /* Bits 48-55 */ | |
1215 | break; | |
1216 | } | |
1217 | } | |
03e47c9c | 1218 | |
03e47c9c | 1219 | |
8cd6b7bc JB |
1220 | int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf) |
1221 | { | |
1222 | u8 *pos = buf; | |
1223 | u8 len = 4, i; | |
1224 | ||
1225 | if (len < wpa_s->extended_capa_len) | |
1226 | len = wpa_s->extended_capa_len; | |
03e47c9c JM |
1227 | |
1228 | *pos++ = WLAN_EID_EXT_CAPAB; | |
8cd6b7bc JB |
1229 | *pos++ = len; |
1230 | for (i = 0; i < len; i++, pos++) { | |
1231 | wpas_ext_capab_byte(wpa_s, pos, i); | |
1232 | ||
1233 | if (i < wpa_s->extended_capa_len) { | |
1234 | *pos &= ~wpa_s->extended_capa_mask[i]; | |
1235 | *pos |= wpa_s->extended_capa[i]; | |
1236 | } | |
1237 | } | |
03e47c9c | 1238 | |
3db5439a JM |
1239 | while (len > 0 && buf[1 + len] == 0) { |
1240 | len--; | |
1241 | buf[1] = len; | |
1242 | } | |
1243 | if (len == 0) | |
1244 | return 0; | |
1245 | ||
1246 | return 2 + len; | |
03e47c9c JM |
1247 | } |
1248 | ||
1249 | ||
6fc6879b JM |
1250 | /** |
1251 | * wpa_supplicant_associate - Request association | |
1252 | * @wpa_s: Pointer to wpa_supplicant data | |
1253 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1254 | * @ssid: Configuration data for the selected network | |
1255 | * | |
1256 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1257 | */ | |
1258 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
6fa81a3b | 1259 | struct wpa_bss *bss, struct wpa_ssid *ssid) |
6fc6879b | 1260 | { |
5f3a6aa0 | 1261 | u8 wpa_ie[200]; |
6fc6879b | 1262 | size_t wpa_ie_len; |
8bac466b | 1263 | int use_crypt, ret, i, bssid_changed; |
abd9fafa | 1264 | int algs = WPA_AUTH_ALG_OPEN; |
71934751 | 1265 | enum wpa_cipher cipher_pairwise, cipher_group; |
6fc6879b JM |
1266 | struct wpa_driver_associate_params params; |
1267 | int wep_keys_set = 0; | |
1268 | struct wpa_driver_capa capa; | |
1269 | int assoc_failed = 0; | |
8bac466b | 1270 | struct wpa_ssid *old_ssid; |
03e47c9c JM |
1271 | u8 ext_capab[10]; |
1272 | int ext_capab_len; | |
80e8a5ee BG |
1273 | #ifdef CONFIG_HT_OVERRIDES |
1274 | struct ieee80211_ht_capabilities htcaps; | |
1275 | struct ieee80211_ht_capabilities htcaps_mask; | |
1276 | #endif /* CONFIG_HT_OVERRIDES */ | |
6fc6879b | 1277 | |
78177a00 JM |
1278 | #ifdef CONFIG_IBSS_RSN |
1279 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1280 | wpa_s->ibss_rsn = NULL; | |
1281 | #endif /* CONFIG_IBSS_RSN */ | |
1282 | ||
2c5d725c JM |
1283 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || |
1284 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1581b38b JM |
1285 | #ifdef CONFIG_AP |
1286 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
f049052b BG |
1287 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " |
1288 | "mode"); | |
1581b38b JM |
1289 | return; |
1290 | } | |
8c981d17 DW |
1291 | if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) { |
1292 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
1293 | return; | |
1294 | } | |
8f770587 | 1295 | wpa_s->current_bss = bss; |
1581b38b | 1296 | #else /* CONFIG_AP */ |
f049052b BG |
1297 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " |
1298 | "the build"); | |
1581b38b JM |
1299 | #endif /* CONFIG_AP */ |
1300 | return; | |
1301 | } | |
1302 | ||
52c9e6f3 | 1303 | #ifdef CONFIG_TDLS |
95cb2d88 JM |
1304 | if (bss) |
1305 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), | |
1306 | bss->ie_len); | |
52c9e6f3 JM |
1307 | #endif /* CONFIG_TDLS */ |
1308 | ||
5cc4d64b JM |
1309 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && |
1310 | ssid->mode == IEEE80211_MODE_INFRA) { | |
c2a04078 JM |
1311 | sme_authenticate(wpa_s, bss, ssid); |
1312 | return; | |
1313 | } | |
1314 | ||
0c80427d | 1315 | os_memset(¶ms, 0, sizeof(params)); |
6fc6879b | 1316 | wpa_s->reassociate = 0; |
22628eca | 1317 | if (bss && !wpas_driver_bss_selection(wpa_s)) { |
6fc6879b | 1318 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1319 | const u8 *ie, *md = NULL; |
6fc6879b | 1320 | #endif /* CONFIG_IEEE80211R */ |
6fc6879b JM |
1321 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR |
1322 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
6fa81a3b | 1323 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); |
8bac466b | 1324 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
1325 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
1326 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
8bac466b JM |
1327 | if (bssid_changed) |
1328 | wpas_notify_bssid_changed(wpa_s); | |
6fc6879b | 1329 | #ifdef CONFIG_IEEE80211R |
6fa81a3b | 1330 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); |
6fc6879b JM |
1331 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) |
1332 | md = ie + 2; | |
e7846b68 | 1333 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); |
91a05482 JM |
1334 | if (md) { |
1335 | /* Prepare for the next transition */ | |
76b7981d | 1336 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); |
91a05482 | 1337 | } |
6fc6879b | 1338 | #endif /* CONFIG_IEEE80211R */ |
24c23d1b JM |
1339 | #ifdef CONFIG_WPS |
1340 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1341 | wpa_s->conf->ap_scan == 2 && | |
1342 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1343 | /* Use ap_scan==1 style network selection to find the network | |
1344 | */ | |
4115303b | 1345 | wpa_s->scan_req = MANUAL_SCAN_REQ; |
24c23d1b JM |
1346 | wpa_s->reassociate = 1; |
1347 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1348 | return; | |
1349 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
1350 | } else { |
1351 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1352 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1353 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1354 | } | |
a4cba8f1 | 1355 | wpa_supplicant_cancel_sched_scan(wpa_s); |
6fc6879b JM |
1356 | wpa_supplicant_cancel_scan(wpa_s); |
1357 | ||
1358 | /* Starting new association, so clear the possibly used WPA IE from the | |
1359 | * previous association. */ | |
1360 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1361 | ||
1362 | #ifdef IEEE8021X_EAPOL | |
1363 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1364 | if (ssid->leap) { | |
1365 | if (ssid->non_leap == 0) | |
abd9fafa | 1366 | algs = WPA_AUTH_ALG_LEAP; |
6fc6879b | 1367 | else |
abd9fafa | 1368 | algs |= WPA_AUTH_ALG_LEAP; |
6fc6879b JM |
1369 | } |
1370 | } | |
1371 | #endif /* IEEE8021X_EAPOL */ | |
f049052b | 1372 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); |
6fc6879b | 1373 | if (ssid->auth_alg) { |
abd9fafa | 1374 | algs = ssid->auth_alg; |
f049052b BG |
1375 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " |
1376 | "0x%x", algs); | |
6fc6879b | 1377 | } |
6fc6879b | 1378 | |
6fa81a3b JM |
1379 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || |
1380 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
0bf927a0 | 1381 | wpa_key_mgmt_wpa(ssid->key_mgmt)) { |
6fc6879b | 1382 | int try_opportunistic; |
6e202021 JM |
1383 | try_opportunistic = (ssid->proactive_key_caching < 0 ? |
1384 | wpa_s->conf->okc : | |
1385 | ssid->proactive_key_caching) && | |
6fc6879b JM |
1386 | (ssid->proto & WPA_PROTO_RSN); |
1387 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
b2a12c4f | 1388 | ssid, try_opportunistic) == 0) |
6fc6879b JM |
1389 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); |
1390 | wpa_ie_len = sizeof(wpa_ie); | |
1391 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1392 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1393 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1394 | "key management and encryption suites"); | |
6fc6879b JM |
1395 | return; |
1396 | } | |
a3f7e518 JM |
1397 | } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss && |
1398 | wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) { | |
1399 | /* | |
1400 | * Both WPA and non-WPA IEEE 802.1X enabled in configuration - | |
1401 | * use non-WPA since the scan results did not indicate that the | |
1402 | * AP is using WPA or WPA2. | |
1403 | */ | |
1404 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1405 | wpa_ie_len = 0; | |
1406 | wpa_s->wpa_proto = 0; | |
0bf927a0 | 1407 | } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { |
6fc6879b JM |
1408 | wpa_ie_len = sizeof(wpa_ie); |
1409 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1410 | wpa_ie, &wpa_ie_len)) { | |
f049052b BG |
1411 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " |
1412 | "key management and encryption suites (no " | |
1413 | "scan results)"); | |
6fc6879b JM |
1414 | return; |
1415 | } | |
ad08c363 JM |
1416 | #ifdef CONFIG_WPS |
1417 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
b01c18a8 JM |
1418 | struct wpabuf *wps_ie; |
1419 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
ad08c363 JM |
1420 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { |
1421 | wpa_ie_len = wpabuf_len(wps_ie); | |
1422 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
24386985 JM |
1423 | } else |
1424 | wpa_ie_len = 0; | |
ad08c363 JM |
1425 | wpabuf_free(wps_ie); |
1426 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
0c80427d JM |
1427 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) |
1428 | params.wps = WPS_MODE_PRIVACY; | |
1429 | else | |
1430 | params.wps = WPS_MODE_OPEN; | |
cf546f1a | 1431 | wpa_s->wpa_proto = 0; |
ad08c363 | 1432 | #endif /* CONFIG_WPS */ |
6fc6879b JM |
1433 | } else { |
1434 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1435 | wpa_ie_len = 0; | |
cf546f1a | 1436 | wpa_s->wpa_proto = 0; |
6fc6879b JM |
1437 | } |
1438 | ||
5f3a6aa0 JM |
1439 | #ifdef CONFIG_P2P |
1440 | if (wpa_s->global->p2p) { | |
1441 | u8 *pos; | |
1442 | size_t len; | |
1443 | int res; | |
5f3a6aa0 JM |
1444 | pos = wpa_ie + wpa_ie_len; |
1445 | len = sizeof(wpa_ie) - wpa_ie_len; | |
b8a8d677 JM |
1446 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, |
1447 | ssid->p2p_group); | |
5f3a6aa0 JM |
1448 | if (res >= 0) |
1449 | wpa_ie_len += res; | |
1450 | } | |
72044390 JM |
1451 | |
1452 | wpa_s->cross_connect_disallowed = 0; | |
1453 | if (bss) { | |
1454 | struct wpabuf *p2p; | |
1455 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1456 | if (p2p) { | |
1457 | wpa_s->cross_connect_disallowed = | |
1458 | p2p_get_cross_connect_disallowed(p2p); | |
1459 | wpabuf_free(p2p); | |
f049052b BG |
1460 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " |
1461 | "connection", | |
1462 | wpa_s->cross_connect_disallowed ? | |
1463 | "disallows" : "allows"); | |
72044390 JM |
1464 | } |
1465 | } | |
5f3a6aa0 JM |
1466 | #endif /* CONFIG_P2P */ |
1467 | ||
cb418324 JM |
1468 | #ifdef CONFIG_HS20 |
1469 | if (wpa_s->conf->hs20) { | |
1470 | struct wpabuf *hs20; | |
1471 | hs20 = wpabuf_alloc(20); | |
1472 | if (hs20) { | |
1473 | wpas_hs20_add_indication(hs20); | |
1474 | os_memcpy(wpa_ie + wpa_ie_len, wpabuf_head(hs20), | |
1475 | wpabuf_len(hs20)); | |
1476 | wpa_ie_len += wpabuf_len(hs20); | |
1477 | wpabuf_free(hs20); | |
1478 | } | |
1479 | } | |
1480 | #endif /* CONFIG_HS20 */ | |
1481 | ||
03e47c9c JM |
1482 | ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab); |
1483 | if (ext_capab_len > 0) { | |
92cbcf91 JM |
1484 | u8 *pos = wpa_ie; |
1485 | if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) | |
1486 | pos += 2 + pos[1]; | |
03e47c9c JM |
1487 | os_memmove(pos + ext_capab_len, pos, |
1488 | wpa_ie_len - (pos - wpa_ie)); | |
1489 | wpa_ie_len += ext_capab_len; | |
1490 | os_memcpy(pos, ext_capab, ext_capab_len); | |
92cbcf91 | 1491 | } |
92cbcf91 | 1492 | |
6fc6879b JM |
1493 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); |
1494 | use_crypt = 1; | |
62769a88 JM |
1495 | cipher_pairwise = wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher); |
1496 | cipher_group = wpa_cipher_to_suite_driver(wpa_s->group_cipher); | |
6fc6879b JM |
1497 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || |
1498 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1499 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1500 | use_crypt = 0; | |
1501 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1502 | use_crypt = 1; | |
1503 | wep_keys_set = 1; | |
1504 | } | |
1505 | } | |
ad08c363 JM |
1506 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) |
1507 | use_crypt = 0; | |
6fc6879b JM |
1508 | |
1509 | #ifdef IEEE8021X_EAPOL | |
1510 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1511 | if ((ssid->eapol_flags & | |
1512 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1513 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1514 | !wep_keys_set) { | |
1515 | use_crypt = 0; | |
1516 | } else { | |
1517 | /* Assume that dynamic WEP-104 keys will be used and | |
1518 | * set cipher suites in order for drivers to expect | |
1519 | * encryption. */ | |
1520 | cipher_pairwise = cipher_group = CIPHER_WEP104; | |
1521 | } | |
1522 | } | |
1523 | #endif /* IEEE8021X_EAPOL */ | |
1524 | ||
1525 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1526 | /* Set the key before (and later after) association */ | |
1527 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1528 | } | |
1529 | ||
6fc6879b | 1530 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); |
6fc6879b | 1531 | if (bss) { |
6fa81a3b JM |
1532 | params.ssid = bss->ssid; |
1533 | params.ssid_len = bss->ssid_len; | |
f15854d1 JM |
1534 | if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) { |
1535 | wpa_printf(MSG_DEBUG, "Limit connection to BSSID " | |
1536 | MACSTR " freq=%u MHz based on scan results " | |
1537 | "(bssid_set=%d)", | |
1538 | MAC2STR(bss->bssid), bss->freq, | |
1539 | ssid->bssid_set); | |
22628eca JM |
1540 | params.bssid = bss->bssid; |
1541 | params.freq = bss->freq; | |
1542 | } | |
6fc6879b JM |
1543 | } else { |
1544 | params.ssid = ssid->ssid; | |
1545 | params.ssid_len = ssid->ssid_len; | |
1546 | } | |
9e2af29f NC |
1547 | |
1548 | if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set && | |
1549 | wpa_s->conf->ap_scan == 2) { | |
1550 | params.bssid = ssid->bssid; | |
1551 | params.fixed_bssid = 1; | |
1552 | } | |
1553 | ||
d7dcba70 JM |
1554 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && |
1555 | params.freq == 0) | |
6fc6879b JM |
1556 | params.freq = ssid->frequency; /* Initial channel for IBSS */ |
1557 | params.wpa_ie = wpa_ie; | |
1558 | params.wpa_ie_len = wpa_ie_len; | |
1559 | params.pairwise_suite = cipher_pairwise; | |
1560 | params.group_suite = cipher_group; | |
1561 | params.key_mgmt_suite = key_mgmt2driver(wpa_s->key_mgmt); | |
64fa840a | 1562 | params.wpa_proto = wpa_s->wpa_proto; |
6fc6879b JM |
1563 | params.auth_alg = algs; |
1564 | params.mode = ssid->mode; | |
1f6c0ab8 | 1565 | params.bg_scan_period = ssid->bg_scan_period; |
6fc6879b JM |
1566 | for (i = 0; i < NUM_WEP_KEYS; i++) { |
1567 | if (ssid->wep_key_len[i]) | |
1568 | params.wep_key[i] = ssid->wep_key[i]; | |
1569 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1570 | } | |
1571 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1572 | ||
c2a04078 | 1573 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
6fc6879b JM |
1574 | (params.key_mgmt_suite == KEY_MGMT_PSK || |
1575 | params.key_mgmt_suite == KEY_MGMT_FT_PSK)) { | |
1576 | params.passphrase = ssid->passphrase; | |
1577 | if (ssid->psk_set) | |
1578 | params.psk = ssid->psk; | |
1579 | } | |
1580 | ||
36b15723 JM |
1581 | params.drop_unencrypted = use_crypt; |
1582 | ||
6fc6879b | 1583 | #ifdef CONFIG_IEEE80211W |
62d49803 JM |
1584 | params.mgmt_frame_protection = |
1585 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1586 | wpa_s->conf->pmf : ssid->ieee80211w; | |
1587 | if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) { | |
6fa81a3b | 1588 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); |
97d3497e JM |
1589 | struct wpa_ie_data ie; |
1590 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1591 | ie.capabilities & | |
1592 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
f049052b BG |
1593 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " |
1594 | "MFP: require MFP"); | |
97d3497e JM |
1595 | params.mgmt_frame_protection = |
1596 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1597 | } | |
1598 | } | |
6fc6879b JM |
1599 | #endif /* CONFIG_IEEE80211W */ |
1600 | ||
ffad8858 | 1601 | params.p2p = ssid->p2p_group; |
6e3f4b89 | 1602 | |
eea2fd9e JM |
1603 | if (wpa_s->parent->set_sta_uapsd) |
1604 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1605 | else | |
1606 | params.uapsd = -1; | |
1607 | ||
80e8a5ee BG |
1608 | #ifdef CONFIG_HT_OVERRIDES |
1609 | os_memset(&htcaps, 0, sizeof(htcaps)); | |
1610 | os_memset(&htcaps_mask, 0, sizeof(htcaps_mask)); | |
1611 | params.htcaps = (u8 *) &htcaps; | |
1612 | params.htcaps_mask = (u8 *) &htcaps_mask; | |
1613 | wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms); | |
1614 | #endif /* CONFIG_HT_OVERRIDES */ | |
1615 | ||
17fbb751 | 1616 | ret = wpa_drv_associate(wpa_s, ¶ms); |
6fc6879b JM |
1617 | if (ret < 0) { |
1618 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1619 | "failed"); | |
871f4dd0 JM |
1620 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { |
1621 | /* | |
1622 | * The driver is known to mean what is saying, so we | |
1623 | * can stop right here; the association will not | |
1624 | * succeed. | |
1625 | */ | |
1626 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
c1c02342 | 1627 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
871f4dd0 JM |
1628 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); |
1629 | return; | |
1630 | } | |
6fc6879b JM |
1631 | /* try to continue anyway; new association will be tried again |
1632 | * after timeout */ | |
1633 | assoc_failed = 1; | |
1634 | } | |
1635 | ||
1636 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1637 | /* Set the key after the association just in case association | |
1638 | * cleared the previously configured key. */ | |
1639 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1640 | /* No need to timeout authentication since there is no key | |
1641 | * management. */ | |
1642 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1643 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
53895c3b | 1644 | #ifdef CONFIG_IBSS_RSN |
d7dcba70 | 1645 | } else if (ssid->mode == WPAS_MODE_IBSS && |
53895c3b JM |
1646 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && |
1647 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
1648 | /* | |
1649 | * RSN IBSS authentication is per-STA and we can disable the | |
1650 | * per-BSSID authentication. | |
1651 | */ | |
1652 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
53895c3b | 1653 | #endif /* CONFIG_IBSS_RSN */ |
6fc6879b JM |
1654 | } else { |
1655 | /* Timeout for IEEE 802.11 authentication and association */ | |
1d3c75b3 DW |
1656 | int timeout = 60; |
1657 | ||
1658 | if (assoc_failed) { | |
1659 | /* give IBSS a bit more time */ | |
d7dcba70 | 1660 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; |
1d3c75b3 DW |
1661 | } else if (wpa_s->conf->ap_scan == 1) { |
1662 | /* give IBSS a bit more time */ | |
d7dcba70 | 1663 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; |
1d3c75b3 | 1664 | } |
6fc6879b JM |
1665 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); |
1666 | } | |
1667 | ||
1668 | if (wep_keys_set && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1669 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC) { | |
1670 | /* Set static WEP keys again */ | |
1671 | wpa_set_wep_keys(wpa_s, ssid); | |
1672 | } | |
1673 | ||
1674 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1675 | /* | |
1676 | * Do not allow EAP session resumption between different | |
1677 | * network configurations. | |
1678 | */ | |
1679 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1680 | } | |
8bac466b | 1681 | old_ssid = wpa_s->current_ssid; |
6fc6879b | 1682 | wpa_s->current_ssid = ssid; |
8f770587 | 1683 | wpa_s->current_bss = bss; |
6fc6879b JM |
1684 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); |
1685 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
1686 | if (old_ssid != wpa_s->current_ssid) |
1687 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
1688 | } |
1689 | ||
1690 | ||
09f58c09 JM |
1691 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, |
1692 | const u8 *addr) | |
1693 | { | |
1694 | struct wpa_ssid *old_ssid; | |
1695 | ||
1696 | wpa_clear_keys(wpa_s, addr); | |
09f58c09 | 1697 | old_ssid = wpa_s->current_ssid; |
0d30cc24 | 1698 | wpa_supplicant_mark_disassoc(wpa_s); |
09f58c09 JM |
1699 | wpa_sm_set_config(wpa_s->wpa, NULL); |
1700 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1701 | if (old_ssid != wpa_s->current_ssid) | |
1702 | wpas_notify_network_changed(wpa_s); | |
1703 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1704 | } | |
1705 | ||
1706 | ||
6fc6879b JM |
1707 | /** |
1708 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1709 | * @wpa_s: Pointer to wpa_supplicant data | |
1710 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1711 | * | |
073ab58f | 1712 | * This function is used to request %wpa_supplicant to deauthenticate from the |
6fc6879b JM |
1713 | * current AP. |
1714 | */ | |
1715 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1716 | int reason_code) | |
1717 | { | |
1718 | u8 *addr = NULL; | |
ef48ff94 | 1719 | union wpa_event_data event; |
42d23547 | 1720 | int zero_addr = 0; |
8bac466b | 1721 | |
42d23547 JM |
1722 | wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR |
1723 | " pending_bssid=" MACSTR " reason=%d state=%s", | |
1724 | MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), | |
1725 | reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state)); | |
1726 | ||
1727 | if (!is_zero_ether_addr(wpa_s->bssid)) | |
1728 | addr = wpa_s->bssid; | |
1729 | else if (!is_zero_ether_addr(wpa_s->pending_bssid) && | |
1730 | (wpa_s->wpa_state == WPA_AUTHENTICATING || | |
1731 | wpa_s->wpa_state == WPA_ASSOCIATING)) | |
1732 | addr = wpa_s->pending_bssid; | |
1733 | else if (wpa_s->wpa_state == WPA_ASSOCIATING) { | |
1734 | /* | |
1735 | * When using driver-based BSS selection, we may not know the | |
1736 | * BSSID with which we are currently trying to associate. We | |
1737 | * need to notify the driver of this disconnection even in such | |
1738 | * a case, so use the all zeros address here. | |
1739 | */ | |
6fc6879b | 1740 | addr = wpa_s->bssid; |
42d23547 JM |
1741 | zero_addr = 1; |
1742 | } | |
1743 | ||
7b44ff2c SD |
1744 | #ifdef CONFIG_TDLS |
1745 | wpa_tdls_teardown_peers(wpa_s->wpa); | |
1746 | #endif /* CONFIG_TDLS */ | |
1747 | ||
42d23547 JM |
1748 | if (addr) { |
1749 | wpa_drv_deauthenticate(wpa_s, addr, reason_code); | |
ef48ff94 JM |
1750 | os_memset(&event, 0, sizeof(event)); |
1751 | event.deauth_info.reason_code = (u16) reason_code; | |
1752 | event.deauth_info.locally_generated = 1; | |
1753 | wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event); | |
42d23547 JM |
1754 | if (zero_addr) |
1755 | addr = NULL; | |
6fc6879b | 1756 | } |
09f58c09 JM |
1757 | |
1758 | wpa_supplicant_clear_connection(wpa_s, addr); | |
6fc6879b JM |
1759 | } |
1760 | ||
dca1a511 DS |
1761 | static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s, |
1762 | struct wpa_ssid *ssid) | |
1763 | { | |
1764 | if (!ssid || !ssid->disabled || ssid->disabled == 2) | |
1765 | return; | |
1766 | ||
1767 | ssid->disabled = 0; | |
1768 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
1769 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1770 | ||
1771 | /* | |
1772 | * Try to reassociate since there is no current configuration and a new | |
1773 | * network was made available. | |
1774 | */ | |
1775 | if (!wpa_s->current_ssid) | |
1776 | wpa_s->reassociate = 1; | |
1777 | } | |
1778 | ||
6fc6879b | 1779 | |
86b89452 WS |
1780 | /** |
1781 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1782 | * @wpa_s: wpa_supplicant structure for a network interface | |
1783 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1784 | * | |
1785 | * Enables the specified network or all networks if no network specified. | |
1786 | */ | |
1787 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
1788 | struct wpa_ssid *ssid) | |
1789 | { | |
86b89452 | 1790 | if (ssid == NULL) { |
14f79078 JM |
1791 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
1792 | wpa_supplicant_enable_one_network(wpa_s, ssid); | |
dca1a511 DS |
1793 | } else |
1794 | wpa_supplicant_enable_one_network(wpa_s, ssid); | |
86b89452 | 1795 | |
dca1a511 DS |
1796 | if (wpa_s->reassociate) { |
1797 | if (wpa_s->sched_scanning) { | |
1798 | wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add " | |
1799 | "new network to scan filters"); | |
1800 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1801 | } | |
86b89452 | 1802 | |
dca1a511 | 1803 | wpa_supplicant_req_scan(wpa_s, 0, 0); |
86b89452 WS |
1804 | } |
1805 | } | |
1806 | ||
1807 | ||
1808 | /** | |
1809 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
1810 | * @wpa_s: wpa_supplicant structure for a network interface | |
1811 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1812 | * | |
1813 | * Disables the specified network or all networks if no network specified. | |
1814 | */ | |
1815 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
1816 | struct wpa_ssid *ssid) | |
1817 | { | |
1818 | struct wpa_ssid *other_ssid; | |
1819 | int was_disabled; | |
1820 | ||
1821 | if (ssid == NULL) { | |
725fc39e DS |
1822 | if (wpa_s->sched_scanning) |
1823 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1824 | ||
4dac0245 JM |
1825 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1826 | other_ssid = other_ssid->next) { | |
86b89452 | 1827 | was_disabled = other_ssid->disabled; |
4dac0245 JM |
1828 | if (was_disabled == 2) |
1829 | continue; /* do not change persistent P2P group | |
1830 | * data */ | |
86b89452 WS |
1831 | |
1832 | other_ssid->disabled = 1; | |
1833 | ||
1834 | if (was_disabled != other_ssid->disabled) | |
1835 | wpas_notify_network_enabled_changed( | |
1836 | wpa_s, other_ssid); | |
86b89452 WS |
1837 | } |
1838 | if (wpa_s->current_ssid) | |
07783eaa | 1839 | wpa_supplicant_deauthenticate( |
86b89452 | 1840 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
4dac0245 | 1841 | } else if (ssid->disabled != 2) { |
86b89452 | 1842 | if (ssid == wpa_s->current_ssid) |
07783eaa | 1843 | wpa_supplicant_deauthenticate( |
86b89452 WS |
1844 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
1845 | ||
1846 | was_disabled = ssid->disabled; | |
1847 | ||
1848 | ssid->disabled = 1; | |
1849 | ||
725fc39e | 1850 | if (was_disabled != ssid->disabled) { |
86b89452 | 1851 | wpas_notify_network_enabled_changed(wpa_s, ssid); |
725fc39e DS |
1852 | if (wpa_s->sched_scanning) { |
1853 | wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan " | |
1854 | "to remove network from filters"); | |
1855 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1856 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1857 | } | |
1858 | } | |
86b89452 WS |
1859 | } |
1860 | } | |
1861 | ||
1862 | ||
1863 | /** | |
1864 | * wpa_supplicant_select_network - Attempt association with a network | |
1865 | * @wpa_s: wpa_supplicant structure for a network interface | |
1866 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
1867 | */ | |
1868 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
1869 | struct wpa_ssid *ssid) | |
1870 | { | |
1871 | ||
1872 | struct wpa_ssid *other_ssid; | |
d93dfbd5 | 1873 | int disconnected = 0; |
86b89452 | 1874 | |
d93dfbd5 | 1875 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) { |
07783eaa | 1876 | wpa_supplicant_deauthenticate( |
86b89452 | 1877 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); |
d93dfbd5 JM |
1878 | disconnected = 1; |
1879 | } | |
86b89452 | 1880 | |
00e5e3d5 JM |
1881 | if (ssid) |
1882 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
1883 | ||
86b89452 WS |
1884 | /* |
1885 | * Mark all other networks disabled or mark all networks enabled if no | |
1886 | * network specified. | |
1887 | */ | |
4dac0245 JM |
1888 | for (other_ssid = wpa_s->conf->ssid; other_ssid; |
1889 | other_ssid = other_ssid->next) { | |
86b89452 | 1890 | int was_disabled = other_ssid->disabled; |
4dac0245 JM |
1891 | if (was_disabled == 2) |
1892 | continue; /* do not change persistent P2P group data */ | |
86b89452 WS |
1893 | |
1894 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
00e5e3d5 JM |
1895 | if (was_disabled && !other_ssid->disabled) |
1896 | wpas_clear_temp_disabled(wpa_s, other_ssid, 0); | |
86b89452 WS |
1897 | |
1898 | if (was_disabled != other_ssid->disabled) | |
1899 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
86b89452 | 1900 | } |
2a6f78fb JJ |
1901 | |
1902 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { | |
1903 | /* We are already associated with the selected network */ | |
1904 | wpa_printf(MSG_DEBUG, "Already associated with the " | |
1905 | "selected network - do nothing"); | |
1906 | return; | |
1907 | } | |
1908 | ||
96efeeb6 JM |
1909 | if (ssid) |
1910 | wpa_s->current_ssid = ssid; | |
7dcdcfd6 | 1911 | wpa_s->connect_without_scan = NULL; |
86b89452 WS |
1912 | wpa_s->disconnected = 0; |
1913 | wpa_s->reassociate = 1; | |
cecdddc1 PS |
1914 | |
1915 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
1916 | wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0); | |
86b89452 | 1917 | |
a1641d26 JM |
1918 | if (ssid) |
1919 | wpas_notify_network_selected(wpa_s, ssid); | |
86b89452 WS |
1920 | } |
1921 | ||
1922 | ||
1923 | /** | |
1924 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
1925 | * @wpa_s: wpa_supplicant structure for a network interface | |
1926 | * @ap_scan: AP scan mode | |
1927 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
1928 | * | |
1929 | */ | |
1930 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
1931 | { | |
1932 | ||
1933 | int old_ap_scan; | |
1934 | ||
1935 | if (ap_scan < 0 || ap_scan > 2) | |
1936 | return -1; | |
1937 | ||
48f8e036 DS |
1938 | #ifdef ANDROID |
1939 | if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && | |
1940 | wpa_s->wpa_state >= WPA_ASSOCIATING && | |
1941 | wpa_s->wpa_state < WPA_COMPLETED) { | |
1942 | wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " | |
1943 | "associating", wpa_s->conf->ap_scan, ap_scan); | |
1944 | return 0; | |
1945 | } | |
1946 | #endif /* ANDROID */ | |
1947 | ||
86b89452 WS |
1948 | old_ap_scan = wpa_s->conf->ap_scan; |
1949 | wpa_s->conf->ap_scan = ap_scan; | |
1950 | ||
1951 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
1952 | wpas_notify_ap_scan_changed(wpa_s); | |
1953 | ||
1954 | return 0; | |
1955 | } | |
1956 | ||
1957 | ||
78633c37 SL |
1958 | /** |
1959 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
1960 | * @wpa_s: wpa_supplicant structure for a network interface | |
1961 | * @expire_age: Expiration age in seconds | |
1962 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
1963 | * | |
1964 | */ | |
1965 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
1966 | unsigned int bss_expire_age) | |
1967 | { | |
1968 | if (bss_expire_age < 10) { | |
1969 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
1970 | bss_expire_age); | |
1971 | return -1; | |
1972 | } | |
1973 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
1974 | bss_expire_age); | |
1975 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
1976 | ||
1977 | return 0; | |
1978 | } | |
1979 | ||
1980 | ||
1981 | /** | |
1982 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
1983 | * @wpa_s: wpa_supplicant structure for a network interface | |
1984 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
1985 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
1986 | * | |
1987 | */ | |
1988 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
1989 | unsigned int bss_expire_count) | |
1990 | { | |
1991 | if (bss_expire_count < 1) { | |
1992 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
1993 | bss_expire_count); | |
1994 | return -1; | |
1995 | } | |
1996 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
1997 | bss_expire_count); | |
1998 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
1999 | ||
2000 | return 0; | |
2001 | } | |
2002 | ||
2003 | ||
c6e86b63 MA |
2004 | /** |
2005 | * wpa_supplicant_set_scan_interval - Set scan interval | |
2006 | * @wpa_s: wpa_supplicant structure for a network interface | |
2007 | * @scan_interval: scan interval in seconds | |
2008 | * Returns: 0 if succeed or -1 if scan_interval has an invalid value | |
2009 | * | |
2010 | */ | |
2011 | int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s, | |
2012 | int scan_interval) | |
2013 | { | |
2014 | if (scan_interval < 0) { | |
2015 | wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d", | |
2016 | scan_interval); | |
2017 | return -1; | |
2018 | } | |
2019 | wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec", | |
2020 | scan_interval); | |
9e737f08 | 2021 | wpa_supplicant_update_scan_int(wpa_s, scan_interval); |
c6e86b63 MA |
2022 | |
2023 | return 0; | |
2024 | } | |
2025 | ||
2026 | ||
86b89452 WS |
2027 | /** |
2028 | * wpa_supplicant_set_debug_params - Set global debug params | |
2029 | * @global: wpa_global structure | |
2030 | * @debug_level: debug level | |
2031 | * @debug_timestamp: determines if show timestamp in debug data | |
2032 | * @debug_show_keys: determines if show keys in debug data | |
2033 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
2034 | */ | |
2035 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
2036 | int debug_timestamp, int debug_show_keys) | |
2037 | { | |
2038 | ||
2039 | int old_level, old_timestamp, old_show_keys; | |
2040 | ||
2041 | /* check for allowed debuglevels */ | |
14dc0011 PS |
2042 | if (debug_level != MSG_EXCESSIVE && |
2043 | debug_level != MSG_MSGDUMP && | |
86b89452 WS |
2044 | debug_level != MSG_DEBUG && |
2045 | debug_level != MSG_INFO && | |
2046 | debug_level != MSG_WARNING && | |
2047 | debug_level != MSG_ERROR) | |
2048 | return -1; | |
2049 | ||
2050 | old_level = wpa_debug_level; | |
2051 | old_timestamp = wpa_debug_timestamp; | |
2052 | old_show_keys = wpa_debug_show_keys; | |
2053 | ||
2054 | wpa_debug_level = debug_level; | |
2055 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
2056 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
2057 | ||
db9133ac WS |
2058 | if (wpa_debug_level != old_level) |
2059 | wpas_notify_debug_level_changed(global); | |
2060 | if (wpa_debug_timestamp != old_timestamp) | |
2061 | wpas_notify_debug_timestamp_changed(global); | |
2062 | if (wpa_debug_show_keys != old_show_keys) | |
2063 | wpas_notify_debug_show_keys_changed(global); | |
86b89452 WS |
2064 | |
2065 | return 0; | |
2066 | } | |
2067 | ||
2068 | ||
6fc6879b JM |
2069 | /** |
2070 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
2071 | * @wpa_s: Pointer to wpa_supplicant data | |
2072 | * Returns: A pointer to the current network structure or %NULL on failure | |
2073 | */ | |
2074 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
2075 | { | |
2076 | struct wpa_ssid *entry; | |
2077 | u8 ssid[MAX_SSID_LEN]; | |
2078 | int res; | |
2079 | size_t ssid_len; | |
2080 | u8 bssid[ETH_ALEN]; | |
2081 | int wired; | |
2082 | ||
17fbb751 JM |
2083 | res = wpa_drv_get_ssid(wpa_s, ssid); |
2084 | if (res < 0) { | |
2085 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " | |
2086 | "driver"); | |
2087 | return NULL; | |
6fc6879b | 2088 | } |
17fbb751 | 2089 | ssid_len = res; |
6fc6879b | 2090 | |
17fbb751 | 2091 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { |
f049052b BG |
2092 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " |
2093 | "driver"); | |
6fc6879b JM |
2094 | return NULL; |
2095 | } | |
2096 | ||
c2a04078 JM |
2097 | wired = wpa_s->conf->ap_scan == 0 && |
2098 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
6fc6879b JM |
2099 | |
2100 | entry = wpa_s->conf->ssid; | |
2101 | while (entry) { | |
349493bd | 2102 | if (!wpas_network_disabled(wpa_s, entry) && |
6fc6879b JM |
2103 | ((ssid_len == entry->ssid_len && |
2104 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
2105 | (!entry->bssid_set || | |
2106 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
2107 | return entry; | |
24c23d1b | 2108 | #ifdef CONFIG_WPS |
349493bd | 2109 | if (!wpas_network_disabled(wpa_s, entry) && |
24c23d1b JM |
2110 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && |
2111 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
2112 | (!entry->bssid_set || | |
2113 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
2114 | return entry; | |
2115 | #endif /* CONFIG_WPS */ | |
7d232e23 | 2116 | |
349493bd | 2117 | if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set && |
7d232e23 ZC |
2118 | entry->ssid_len == 0 && |
2119 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) | |
2120 | return entry; | |
2121 | ||
6fc6879b JM |
2122 | entry = entry->next; |
2123 | } | |
2124 | ||
2125 | return NULL; | |
2126 | } | |
2127 | ||
2128 | ||
7756114f JM |
2129 | static int select_driver(struct wpa_supplicant *wpa_s, int i) |
2130 | { | |
2131 | struct wpa_global *global = wpa_s->global; | |
2132 | ||
2133 | if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { | |
2134 | global->drv_priv[i] = wpa_drivers[i]->global_init(); | |
2135 | if (global->drv_priv[i] == NULL) { | |
2136 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
2137 | "'%s'", wpa_drivers[i]->name); | |
2138 | return -1; | |
2139 | } | |
2140 | } | |
2141 | ||
2142 | wpa_s->driver = wpa_drivers[i]; | |
2143 | wpa_s->global_drv_priv = global->drv_priv[i]; | |
2144 | ||
2145 | return 0; | |
2146 | } | |
2147 | ||
2148 | ||
6fc6879b JM |
2149 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, |
2150 | const char *name) | |
2151 | { | |
2152 | int i; | |
362f781e | 2153 | size_t len; |
74b1c84a | 2154 | const char *pos, *driver = name; |
6fc6879b JM |
2155 | |
2156 | if (wpa_s == NULL) | |
2157 | return -1; | |
2158 | ||
c5121837 | 2159 | if (wpa_drivers[0] == NULL) { |
f049052b BG |
2160 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " |
2161 | "wpa_supplicant"); | |
6fc6879b JM |
2162 | return -1; |
2163 | } | |
2164 | ||
2165 | if (name == NULL) { | |
2166 | /* default to first driver in the list */ | |
7756114f | 2167 | return select_driver(wpa_s, 0); |
6fc6879b JM |
2168 | } |
2169 | ||
74b1c84a SO |
2170 | do { |
2171 | pos = os_strchr(driver, ','); | |
2172 | if (pos) | |
2173 | len = pos - driver; | |
2174 | else | |
2175 | len = os_strlen(driver); | |
2176 | ||
2177 | for (i = 0; wpa_drivers[i]; i++) { | |
2178 | if (os_strlen(wpa_drivers[i]->name) == len && | |
2179 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
0f4668ce DW |
2180 | 0) { |
2181 | /* First driver that succeeds wins */ | |
2182 | if (select_driver(wpa_s, i) == 0) | |
2183 | return 0; | |
2184 | } | |
6fc6879b | 2185 | } |
74b1c84a SO |
2186 | |
2187 | driver = pos + 1; | |
2188 | } while (pos); | |
6fc6879b | 2189 | |
f049052b | 2190 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); |
6fc6879b JM |
2191 | return -1; |
2192 | } | |
2193 | ||
2194 | ||
a8e0505b JM |
2195 | /** |
2196 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
2197 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
2198 | * with struct wpa_driver_ops::init() | |
2199 | * @src_addr: Source address of the EAPOL frame | |
2200 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
2201 | * @len: Length of the EAPOL data | |
2202 | * | |
2203 | * This function is called for each received EAPOL frame. Most driver | |
2204 | * interfaces rely on more generic OS mechanism for receiving frames through | |
2205 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
2206 | * take care of received EAPOL frames and deliver them to the core supplicant | |
2207 | * code by calling this function. | |
2208 | */ | |
6fc6879b JM |
2209 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
2210 | const u8 *buf, size_t len) | |
2211 | { | |
2212 | struct wpa_supplicant *wpa_s = ctx; | |
2213 | ||
f049052b | 2214 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); |
6fc6879b JM |
2215 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); |
2216 | ||
3ab35a66 JM |
2217 | if (wpa_s->wpa_state < WPA_ASSOCIATED || |
2218 | (wpa_s->last_eapol_matches_bssid && | |
2219 | #ifdef CONFIG_AP | |
2220 | !wpa_s->ap_iface && | |
2221 | #endif /* CONFIG_AP */ | |
2222 | os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) { | |
1ff73338 JM |
2223 | /* |
2224 | * There is possible race condition between receiving the | |
2225 | * association event and the EAPOL frame since they are coming | |
2226 | * through different paths from the driver. In order to avoid | |
2227 | * issues in trying to process the EAPOL frame before receiving | |
2228 | * association information, lets queue it for processing until | |
3ab35a66 JM |
2229 | * the association event is received. This may also be needed in |
2230 | * driver-based roaming case, so also use src_addr != BSSID as a | |
2231 | * trigger if we have previously confirmed that the | |
2232 | * Authenticator uses BSSID as the src_addr (which is not the | |
2233 | * case with wired IEEE 802.1X). | |
1ff73338 | 2234 | */ |
f049052b | 2235 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " |
3ab35a66 JM |
2236 | "of received EAPOL frame (state=%s bssid=" MACSTR ")", |
2237 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
2238 | MAC2STR(wpa_s->bssid)); | |
1ff73338 JM |
2239 | wpabuf_free(wpa_s->pending_eapol_rx); |
2240 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
2241 | if (wpa_s->pending_eapol_rx) { | |
2242 | os_get_time(&wpa_s->pending_eapol_rx_time); | |
2243 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
2244 | ETH_ALEN); | |
2245 | } | |
2246 | return; | |
2247 | } | |
2248 | ||
3ab35a66 JM |
2249 | wpa_s->last_eapol_matches_bssid = |
2250 | os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0; | |
2251 | ||
db149ac9 JM |
2252 | #ifdef CONFIG_AP |
2253 | if (wpa_s->ap_iface) { | |
2254 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
2255 | return; | |
2256 | } | |
2257 | #endif /* CONFIG_AP */ | |
2258 | ||
6fc6879b | 2259 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { |
f049052b BG |
2260 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " |
2261 | "no key management is configured"); | |
6fc6879b JM |
2262 | return; |
2263 | } | |
2264 | ||
2265 | if (wpa_s->eapol_received == 0 && | |
c2a04078 | 2266 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || |
56586197 | 2267 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || |
9c972abb JM |
2268 | wpa_s->wpa_state != WPA_COMPLETED) && |
2269 | (wpa_s->current_ssid == NULL || | |
2270 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
2271 | /* Timeout for completing IEEE 802.1X and WPA authentication */ |
2272 | wpa_supplicant_req_auth_timeout( | |
2273 | wpa_s, | |
56586197 | 2274 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || |
a6f06dab AT |
2275 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || |
2276 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
6fc6879b JM |
2277 | 70 : 10, 0); |
2278 | } | |
2279 | wpa_s->eapol_received++; | |
2280 | ||
2281 | if (wpa_s->countermeasures) { | |
f049052b BG |
2282 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " |
2283 | "EAPOL packet"); | |
6fc6879b JM |
2284 | return; |
2285 | } | |
2286 | ||
8be18440 JM |
2287 | #ifdef CONFIG_IBSS_RSN |
2288 | if (wpa_s->current_ssid && | |
d7dcba70 | 2289 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { |
8be18440 JM |
2290 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); |
2291 | return; | |
2292 | } | |
2293 | #endif /* CONFIG_IBSS_RSN */ | |
2294 | ||
6fc6879b JM |
2295 | /* Source address of the incoming EAPOL frame could be compared to the |
2296 | * current BSSID. However, it is possible that a centralized | |
2297 | * Authenticator could be using another MAC address than the BSSID of | |
2298 | * an AP, so just allow any address to be used for now. The replies are | |
2299 | * still sent to the current BSSID (if available), though. */ | |
2300 | ||
2301 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
56586197 | 2302 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && |
6fc6879b JM |
2303 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) |
2304 | return; | |
2305 | wpa_drv_poll(wpa_s); | |
c2a04078 | 2306 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) |
6fc6879b | 2307 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); |
56586197 | 2308 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { |
6fc6879b JM |
2309 | /* |
2310 | * Set portValid = TRUE here since we are going to skip 4-way | |
2311 | * handshake processing which would normally set portValid. We | |
2312 | * need this to allow the EAPOL state machines to be completed | |
2313 | * without going through EAPOL-Key handshake. | |
2314 | */ | |
2315 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2316 | } | |
2317 | } | |
2318 | ||
2319 | ||
bfba8deb | 2320 | int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) |
6fc6879b | 2321 | { |
6fc6879b JM |
2322 | if (wpa_s->driver->send_eapol) { |
2323 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2324 | if (addr) | |
2325 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
fdadd5fe JM |
2326 | } else if (!(wpa_s->drv_flags & |
2327 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
bfba8deb | 2328 | l2_packet_deinit(wpa_s->l2); |
6fc6879b JM |
2329 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, |
2330 | wpa_drv_get_mac_addr(wpa_s), | |
2331 | ETH_P_EAPOL, | |
2332 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2333 | if (wpa_s->l2 == NULL) | |
2334 | return -1; | |
fdadd5fe JM |
2335 | } else { |
2336 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2337 | if (addr) | |
2338 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
6fc6879b JM |
2339 | } |
2340 | ||
2341 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
f049052b | 2342 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); |
6fc6879b JM |
2343 | return -1; |
2344 | } | |
2345 | ||
f049052b BG |
2346 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, |
2347 | MAC2STR(wpa_s->own_addr)); | |
f98eb880 | 2348 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); |
6fc6879b | 2349 | |
bfba8deb JM |
2350 | return 0; |
2351 | } | |
2352 | ||
2353 | ||
25f839c6 JM |
2354 | static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr, |
2355 | const u8 *buf, size_t len) | |
2356 | { | |
2357 | struct wpa_supplicant *wpa_s = ctx; | |
2358 | const struct l2_ethhdr *eth; | |
2359 | ||
2360 | if (len < sizeof(*eth)) | |
2361 | return; | |
2362 | eth = (const struct l2_ethhdr *) buf; | |
2363 | ||
2364 | if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 && | |
2365 | !(eth->h_dest[0] & 0x01)) { | |
2366 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR | |
2367 | " (bridge - not for this interface - ignore)", | |
2368 | MAC2STR(src_addr), MAC2STR(eth->h_dest)); | |
2369 | return; | |
2370 | } | |
2371 | ||
2372 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR | |
2373 | " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest)); | |
2374 | wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth), | |
2375 | len - sizeof(*eth)); | |
2376 | } | |
2377 | ||
2378 | ||
bfba8deb JM |
2379 | /** |
2380 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
2381 | * @wpa_s: Pointer to wpa_supplicant data | |
2382 | * Returns: 0 on success, -1 on failure | |
2383 | * | |
2384 | * This function is called to initialize driver interface parameters. | |
2385 | * wpa_drv_init() must have been called before this function to initialize the | |
2386 | * driver interface. | |
2387 | */ | |
2388 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
2389 | { | |
2390 | static int interface_count = 0; | |
2391 | ||
2392 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) | |
2393 | return -1; | |
2394 | ||
6fc6879b | 2395 | if (wpa_s->bridge_ifname[0]) { |
f049052b BG |
2396 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " |
2397 | "interface '%s'", wpa_s->bridge_ifname); | |
6fc6879b JM |
2398 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, |
2399 | wpa_s->own_addr, | |
2400 | ETH_P_EAPOL, | |
25f839c6 JM |
2401 | wpa_supplicant_rx_eapol_bridge, |
2402 | wpa_s, 1); | |
6fc6879b | 2403 | if (wpa_s->l2_br == NULL) { |
f049052b BG |
2404 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " |
2405 | "connection for the bridge interface '%s'", | |
2406 | wpa_s->bridge_ifname); | |
6fc6879b JM |
2407 | return -1; |
2408 | } | |
2409 | } | |
2410 | ||
6fc6879b JM |
2411 | wpa_clear_keys(wpa_s, NULL); |
2412 | ||
2413 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2414 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2415 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2416 | ||
f049052b | 2417 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); |
6fc6879b JM |
2418 | wpa_drv_flush_pmkid(wpa_s); |
2419 | ||
ba2a573c | 2420 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; |
b3aa456b ES |
2421 | wpa_s->prev_scan_wildcard = 0; |
2422 | ||
349493bd | 2423 | if (wpa_supplicant_enabled_networks(wpa_s)) { |
6a90053c LC |
2424 | if (wpa_supplicant_delayed_sched_scan(wpa_s, interface_count, |
2425 | 100000)) | |
a4cba8f1 LC |
2426 | wpa_supplicant_req_scan(wpa_s, interface_count, |
2427 | 100000); | |
74e259ec JM |
2428 | interface_count++; |
2429 | } else | |
2430 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
6fc6879b JM |
2431 | |
2432 | return 0; | |
2433 | } | |
2434 | ||
2435 | ||
2436 | static int wpa_supplicant_daemon(const char *pid_file) | |
2437 | { | |
2438 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2439 | return os_daemonize(pid_file); | |
2440 | } | |
2441 | ||
2442 | ||
2443 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2444 | { | |
2445 | struct wpa_supplicant *wpa_s; | |
2446 | ||
2447 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2448 | if (wpa_s == NULL) | |
2449 | return NULL; | |
4115303b | 2450 | wpa_s->scan_req = INITIAL_SCAN_REQ; |
67b9bd08 | 2451 | wpa_s->scan_interval = 5; |
c302f207 | 2452 | wpa_s->new_connection = 1; |
b22128ef | 2453 | wpa_s->parent = wpa_s; |
cbdf3507 | 2454 | wpa_s->sched_scanning = 0; |
6fc6879b JM |
2455 | |
2456 | return wpa_s; | |
2457 | } | |
2458 | ||
2459 | ||
80e8a5ee BG |
2460 | #ifdef CONFIG_HT_OVERRIDES |
2461 | ||
2462 | static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s, | |
2463 | struct ieee80211_ht_capabilities *htcaps, | |
2464 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2465 | const char *ht_mcs) | |
2466 | { | |
2467 | /* parse ht_mcs into hex array */ | |
2468 | int i; | |
2469 | const char *tmp = ht_mcs; | |
2470 | char *end = NULL; | |
2471 | ||
2472 | /* If ht_mcs is null, do not set anything */ | |
2473 | if (!ht_mcs) | |
2474 | return 0; | |
2475 | ||
2476 | /* This is what we are setting in the kernel */ | |
2477 | os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN); | |
2478 | ||
2479 | wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs); | |
2480 | ||
2481 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { | |
2482 | errno = 0; | |
2483 | long v = strtol(tmp, &end, 16); | |
2484 | if (errno == 0) { | |
2485 | wpa_msg(wpa_s, MSG_DEBUG, | |
2486 | "htcap value[%i]: %ld end: %p tmp: %p", | |
2487 | i, v, end, tmp); | |
2488 | if (end == tmp) | |
2489 | break; | |
2490 | ||
2491 | htcaps->supported_mcs_set[i] = v; | |
2492 | tmp = end; | |
2493 | } else { | |
2494 | wpa_msg(wpa_s, MSG_ERROR, | |
2495 | "Failed to parse ht-mcs: %s, error: %s\n", | |
2496 | ht_mcs, strerror(errno)); | |
2497 | return -1; | |
2498 | } | |
2499 | } | |
2500 | ||
2501 | /* | |
2502 | * If we were able to parse any values, then set mask for the MCS set. | |
2503 | */ | |
2504 | if (i) { | |
2505 | os_memset(&htcaps_mask->supported_mcs_set, 0xff, | |
2506 | IEEE80211_HT_MCS_MASK_LEN - 1); | |
2507 | /* skip the 3 reserved bits */ | |
2508 | htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] = | |
2509 | 0x1f; | |
2510 | } | |
2511 | ||
2512 | return 0; | |
2513 | } | |
2514 | ||
2515 | ||
2516 | static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s, | |
2517 | struct ieee80211_ht_capabilities *htcaps, | |
2518 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2519 | int disabled) | |
2520 | { | |
2521 | u16 msk; | |
2522 | ||
2523 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled); | |
2524 | ||
2525 | if (disabled == -1) | |
2526 | return 0; | |
2527 | ||
2528 | msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE); | |
2529 | htcaps_mask->ht_capabilities_info |= msk; | |
2530 | if (disabled) | |
2531 | htcaps->ht_capabilities_info &= msk; | |
2532 | else | |
2533 | htcaps->ht_capabilities_info |= msk; | |
2534 | ||
2535 | return 0; | |
2536 | } | |
2537 | ||
2538 | ||
2539 | static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s, | |
2540 | struct ieee80211_ht_capabilities *htcaps, | |
2541 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2542 | int factor) | |
2543 | { | |
2544 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor); | |
2545 | ||
2546 | if (factor == -1) | |
2547 | return 0; | |
2548 | ||
2549 | if (factor < 0 || factor > 3) { | |
2550 | wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. " | |
2551 | "Must be 0-3 or -1", factor); | |
2552 | return -EINVAL; | |
2553 | } | |
2554 | ||
2555 | htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */ | |
2556 | htcaps->a_mpdu_params &= ~0x3; | |
2557 | htcaps->a_mpdu_params |= factor & 0x3; | |
2558 | ||
2559 | return 0; | |
2560 | } | |
2561 | ||
2562 | ||
2563 | static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s, | |
2564 | struct ieee80211_ht_capabilities *htcaps, | |
2565 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2566 | int density) | |
2567 | { | |
2568 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density); | |
2569 | ||
2570 | if (density == -1) | |
2571 | return 0; | |
2572 | ||
2573 | if (density < 0 || density > 7) { | |
2574 | wpa_msg(wpa_s, MSG_ERROR, | |
2575 | "ampdu_density: %d out of range. Must be 0-7 or -1.", | |
2576 | density); | |
2577 | return -EINVAL; | |
2578 | } | |
2579 | ||
2580 | htcaps_mask->a_mpdu_params |= 0x1C; | |
2581 | htcaps->a_mpdu_params &= ~(0x1C); | |
2582 | htcaps->a_mpdu_params |= (density << 2) & 0x1C; | |
2583 | ||
2584 | return 0; | |
2585 | } | |
2586 | ||
2587 | ||
2588 | static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s, | |
2589 | struct ieee80211_ht_capabilities *htcaps, | |
2590 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2591 | int disabled) | |
2592 | { | |
2593 | /* Masking these out disables HT40 */ | |
2594 | u16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET | | |
2595 | HT_CAP_INFO_SHORT_GI40MHZ); | |
2596 | ||
2597 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled); | |
2598 | ||
2599 | if (disabled) | |
2600 | htcaps->ht_capabilities_info &= ~msk; | |
2601 | else | |
2602 | htcaps->ht_capabilities_info |= msk; | |
2603 | ||
2604 | htcaps_mask->ht_capabilities_info |= msk; | |
2605 | ||
2606 | return 0; | |
2607 | } | |
2608 | ||
2609 | ||
a90497f8 BG |
2610 | static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s, |
2611 | struct ieee80211_ht_capabilities *htcaps, | |
2612 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2613 | int disabled) | |
2614 | { | |
2615 | /* Masking these out disables SGI */ | |
2616 | u16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ | | |
2617 | HT_CAP_INFO_SHORT_GI40MHZ); | |
2618 | ||
2619 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled); | |
2620 | ||
2621 | if (disabled) | |
2622 | htcaps->ht_capabilities_info &= ~msk; | |
2623 | else | |
2624 | htcaps->ht_capabilities_info |= msk; | |
2625 | ||
2626 | htcaps_mask->ht_capabilities_info |= msk; | |
2627 | ||
2628 | return 0; | |
2629 | } | |
2630 | ||
2631 | ||
80e8a5ee BG |
2632 | void wpa_supplicant_apply_ht_overrides( |
2633 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
2634 | struct wpa_driver_associate_params *params) | |
2635 | { | |
2636 | struct ieee80211_ht_capabilities *htcaps; | |
2637 | struct ieee80211_ht_capabilities *htcaps_mask; | |
2638 | ||
2639 | if (!ssid) | |
2640 | return; | |
2641 | ||
2642 | params->disable_ht = ssid->disable_ht; | |
2643 | if (!params->htcaps || !params->htcaps_mask) | |
2644 | return; | |
2645 | ||
2646 | htcaps = (struct ieee80211_ht_capabilities *) params->htcaps; | |
2647 | htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask; | |
2648 | wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs); | |
2649 | wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask, | |
2650 | ssid->disable_max_amsdu); | |
2651 | wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor); | |
2652 | wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density); | |
2653 | wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40); | |
a90497f8 | 2654 | wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi); |
80e8a5ee BG |
2655 | } |
2656 | ||
2657 | #endif /* CONFIG_HT_OVERRIDES */ | |
2658 | ||
2659 | ||
e9ee8dc3 JB |
2660 | #ifdef CONFIG_VHT_OVERRIDES |
2661 | void wpa_supplicant_apply_vht_overrides( | |
2662 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
2663 | struct wpa_driver_associate_params *params) | |
2664 | { | |
2665 | struct ieee80211_vht_capabilities *vhtcaps; | |
2666 | struct ieee80211_vht_capabilities *vhtcaps_mask; | |
2667 | ||
2668 | if (!ssid) | |
2669 | return; | |
2670 | ||
2671 | params->disable_vht = ssid->disable_vht; | |
2672 | ||
2673 | vhtcaps = (void *) params->vhtcaps; | |
2674 | vhtcaps_mask = (void *) params->vhtcaps_mask; | |
2675 | ||
2676 | if (!vhtcaps || !vhtcaps_mask) | |
2677 | return; | |
2678 | ||
2679 | vhtcaps->vht_capabilities_info = ssid->vht_capa; | |
2680 | vhtcaps_mask->vht_capabilities_info = ssid->vht_capa_mask; | |
2681 | ||
2682 | #define OVERRIDE_MCS(i) \ | |
2683 | if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \ | |
2684 | vhtcaps_mask->vht_supported_mcs_set.tx_map |= \ | |
2685 | 3 << 2 * (i - 1); \ | |
2686 | vhtcaps->vht_supported_mcs_set.tx_map |= \ | |
2687 | ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \ | |
2688 | } \ | |
2689 | if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \ | |
2690 | vhtcaps_mask->vht_supported_mcs_set.rx_map |= \ | |
2691 | 3 << 2 * (i - 1); \ | |
2692 | vhtcaps->vht_supported_mcs_set.rx_map |= \ | |
2693 | ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \ | |
2694 | } | |
2695 | ||
2696 | OVERRIDE_MCS(1); | |
2697 | OVERRIDE_MCS(2); | |
2698 | OVERRIDE_MCS(3); | |
2699 | OVERRIDE_MCS(4); | |
2700 | OVERRIDE_MCS(5); | |
2701 | OVERRIDE_MCS(6); | |
2702 | OVERRIDE_MCS(7); | |
2703 | OVERRIDE_MCS(8); | |
2704 | } | |
2705 | #endif /* CONFIG_VHT_OVERRIDES */ | |
2706 | ||
2707 | ||
f64adcd7 JM |
2708 | static int pcsc_reader_init(struct wpa_supplicant *wpa_s) |
2709 | { | |
2710 | #ifdef PCSC_FUNCS | |
2711 | size_t len; | |
2712 | ||
2713 | if (!wpa_s->conf->pcsc_reader) | |
2714 | return 0; | |
2715 | ||
2716 | wpa_s->scard = scard_init(SCARD_TRY_BOTH, wpa_s->conf->pcsc_reader); | |
2717 | if (!wpa_s->scard) | |
2718 | return 1; | |
2719 | ||
2720 | if (wpa_s->conf->pcsc_pin && | |
2721 | scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) { | |
2722 | scard_deinit(wpa_s->scard); | |
2723 | wpa_s->scard = NULL; | |
2724 | wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed"); | |
2725 | return -1; | |
2726 | } | |
2727 | ||
2728 | len = sizeof(wpa_s->imsi) - 1; | |
2729 | if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) { | |
2730 | scard_deinit(wpa_s->scard); | |
2731 | wpa_s->scard = NULL; | |
2732 | wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI"); | |
2733 | return -1; | |
2734 | } | |
2735 | wpa_s->imsi[len] = '\0'; | |
2736 | ||
2737 | wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard); | |
2738 | ||
2739 | wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)", | |
2740 | wpa_s->imsi, wpa_s->mnc_len); | |
2741 | ||
2742 | wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); | |
2743 | eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); | |
2744 | #endif /* PCSC_FUNCS */ | |
2745 | ||
2746 | return 0; | |
2747 | } | |
2748 | ||
2749 | ||
306ae225 JM |
2750 | int wpas_init_ext_pw(struct wpa_supplicant *wpa_s) |
2751 | { | |
2752 | char *val, *pos; | |
2753 | ||
2754 | ext_password_deinit(wpa_s->ext_pw); | |
2755 | wpa_s->ext_pw = NULL; | |
2756 | eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL); | |
2757 | ||
2758 | if (!wpa_s->conf->ext_password_backend) | |
2759 | return 0; | |
2760 | ||
2761 | val = os_strdup(wpa_s->conf->ext_password_backend); | |
2762 | if (val == NULL) | |
2763 | return -1; | |
2764 | pos = os_strchr(val, ':'); | |
2765 | if (pos) | |
2766 | *pos++ = '\0'; | |
2767 | ||
2768 | wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val); | |
2769 | ||
2770 | wpa_s->ext_pw = ext_password_init(val, pos); | |
2771 | os_free(val); | |
2772 | if (wpa_s->ext_pw == NULL) { | |
2773 | wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend"); | |
2774 | return -1; | |
2775 | } | |
2776 | eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw); | |
2777 | ||
2778 | return 0; | |
2779 | } | |
2780 | ||
2781 | ||
6fc6879b JM |
2782 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, |
2783 | struct wpa_interface *iface) | |
2784 | { | |
362f781e JM |
2785 | const char *ifname, *driver; |
2786 | struct wpa_driver_capa capa; | |
2787 | ||
6fc6879b JM |
2788 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " |
2789 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
2790 | iface->confname ? iface->confname : "N/A", | |
2791 | iface->driver ? iface->driver : "default", | |
2792 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
2793 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
2794 | ||
6fc6879b JM |
2795 | if (iface->confname) { |
2796 | #ifdef CONFIG_BACKEND_FILE | |
2797 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
2798 | if (wpa_s->confname == NULL) { | |
2799 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
2800 | "for configuration file '%s'.", | |
2801 | iface->confname); | |
2802 | return -1; | |
2803 | } | |
2804 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
2805 | iface->confname, wpa_s->confname); | |
2806 | #else /* CONFIG_BACKEND_FILE */ | |
2807 | wpa_s->confname = os_strdup(iface->confname); | |
2808 | #endif /* CONFIG_BACKEND_FILE */ | |
e6304cad | 2809 | wpa_s->conf = wpa_config_read(wpa_s->confname, NULL); |
6fc6879b JM |
2810 | if (wpa_s->conf == NULL) { |
2811 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
2812 | "configuration '%s'.", wpa_s->confname); | |
2813 | return -1; | |
2814 | } | |
e6304cad DS |
2815 | wpa_s->confanother = os_rel2abs_path(iface->confanother); |
2816 | wpa_config_read(wpa_s->confanother, wpa_s->conf); | |
6fc6879b JM |
2817 | |
2818 | /* | |
2819 | * Override ctrl_interface and driver_param if set on command | |
2820 | * line. | |
2821 | */ | |
2822 | if (iface->ctrl_interface) { | |
2823 | os_free(wpa_s->conf->ctrl_interface); | |
2824 | wpa_s->conf->ctrl_interface = | |
2825 | os_strdup(iface->ctrl_interface); | |
2826 | } | |
2827 | ||
2828 | if (iface->driver_param) { | |
2829 | os_free(wpa_s->conf->driver_param); | |
2830 | wpa_s->conf->driver_param = | |
2831 | os_strdup(iface->driver_param); | |
2832 | } | |
2833 | } else | |
2834 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
2835 | iface->driver_param); | |
2836 | ||
2837 | if (wpa_s->conf == NULL) { | |
2838 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
2839 | return -1; | |
2840 | } | |
2841 | ||
2842 | if (iface->ifname == NULL) { | |
2843 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
2844 | return -1; | |
2845 | } | |
2846 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
2847 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
2848 | iface->ifname); | |
2849 | return -1; | |
2850 | } | |
2851 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
2852 | ||
2853 | if (iface->bridge_ifname) { | |
2854 | if (os_strlen(iface->bridge_ifname) >= | |
2855 | sizeof(wpa_s->bridge_ifname)) { | |
2856 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
2857 | "name '%s'.", iface->bridge_ifname); | |
2858 | return -1; | |
2859 | } | |
2860 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
2861 | sizeof(wpa_s->bridge_ifname)); | |
2862 | } | |
2863 | ||
6fc6879b JM |
2864 | /* RSNA Supplicant Key Management - INITIALIZE */ |
2865 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2866 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2867 | ||
2868 | /* Initialize driver interface and register driver event handler before | |
2869 | * L2 receive handler so that association events are processed before | |
2870 | * EAPOL-Key packets if both become available for the same select() | |
2871 | * call. */ | |
362f781e JM |
2872 | driver = iface->driver; |
2873 | next_driver: | |
2874 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
2875 | return -1; | |
2876 | ||
6fc6879b JM |
2877 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); |
2878 | if (wpa_s->drv_priv == NULL) { | |
362f781e | 2879 | const char *pos; |
a5b9337f | 2880 | pos = driver ? os_strchr(driver, ',') : NULL; |
362f781e | 2881 | if (pos) { |
f049052b BG |
2882 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " |
2883 | "driver interface - try next driver wrapper"); | |
362f781e JM |
2884 | driver = pos + 1; |
2885 | goto next_driver; | |
2886 | } | |
f049052b BG |
2887 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " |
2888 | "interface"); | |
6fc6879b JM |
2889 | return -1; |
2890 | } | |
2891 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
f049052b BG |
2892 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " |
2893 | "driver_param '%s'", wpa_s->conf->driver_param); | |
6fc6879b JM |
2894 | return -1; |
2895 | } | |
2896 | ||
2897 | ifname = wpa_drv_get_ifname(wpa_s); | |
2898 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
f049052b BG |
2899 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " |
2900 | "interface name with '%s'", ifname); | |
6fc6879b JM |
2901 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); |
2902 | } | |
2903 | ||
2904 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
2905 | return -1; | |
2906 | ||
2907 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
2908 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
2909 | NULL); | |
2910 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
2911 | ||
2912 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
2913 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
2914 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
f049052b BG |
2915 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2916 | "dot11RSNAConfigPMKLifetime"); | |
6fc6879b JM |
2917 | return -1; |
2918 | } | |
2919 | ||
2920 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
2921 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
2922 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
f049052b | 2923 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
6fc6879b JM |
2924 | "dot11RSNAConfigPMKReauthThreshold"); |
2925 | return -1; | |
2926 | } | |
2927 | ||
2928 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
2929 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
2930 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
f049052b BG |
2931 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " |
2932 | "dot11RSNAConfigSATimeout"); | |
6fc6879b JM |
2933 | return -1; |
2934 | } | |
2935 | ||
6bf731e8 CL |
2936 | wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, |
2937 | &wpa_s->hw.num_modes, | |
2938 | &wpa_s->hw.flags); | |
2939 | ||
814782b9 | 2940 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { |
c58ab8f2 | 2941 | wpa_s->drv_capa_known = 1; |
814782b9 | 2942 | wpa_s->drv_flags = capa.flags; |
349493bd | 2943 | wpa_s->drv_enc = capa.enc; |
4f73d88a | 2944 | wpa_s->probe_resp_offloads = capa.probe_resp_offloads; |
814782b9 | 2945 | wpa_s->max_scan_ssids = capa.max_scan_ssids; |
cbdf3507 LC |
2946 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; |
2947 | wpa_s->sched_scan_supported = capa.sched_scan_supported; | |
b59e6f26 | 2948 | wpa_s->max_match_sets = capa.max_match_sets; |
814782b9 | 2949 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; |
c4ea4c5c | 2950 | wpa_s->max_stations = capa.max_stations; |
8cd6b7bc JB |
2951 | wpa_s->extended_capa = capa.extended_capa; |
2952 | wpa_s->extended_capa_mask = capa.extended_capa_mask; | |
2953 | wpa_s->extended_capa_len = capa.extended_capa_len; | |
814782b9 JM |
2954 | } |
2955 | if (wpa_s->max_remain_on_chan == 0) | |
2956 | wpa_s->max_remain_on_chan = 1000; | |
2957 | ||
6fc6879b JM |
2958 | if (wpa_supplicant_driver_init(wpa_s) < 0) |
2959 | return -1; | |
2960 | ||
281ff0aa GP |
2961 | #ifdef CONFIG_TDLS |
2962 | if (wpa_tdls_init(wpa_s->wpa)) | |
2963 | return -1; | |
2964 | #endif /* CONFIG_TDLS */ | |
2965 | ||
315ce40a JM |
2966 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && |
2967 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
f049052b | 2968 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); |
6d158490 LR |
2969 | return -1; |
2970 | } | |
2971 | ||
116654ce JM |
2972 | if (wpas_wps_init(wpa_s)) |
2973 | return -1; | |
2974 | ||
6fc6879b JM |
2975 | if (wpa_supplicant_init_eapol(wpa_s) < 0) |
2976 | return -1; | |
2977 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2978 | ||
2979 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
2980 | if (wpa_s->ctrl_iface == NULL) { | |
2981 | wpa_printf(MSG_ERROR, | |
2982 | "Failed to initialize control interface '%s'.\n" | |
2983 | "You may have another wpa_supplicant process " | |
2984 | "already running or the file was\n" | |
2985 | "left by an unclean termination of wpa_supplicant " | |
2986 | "in which case you will need\n" | |
2987 | "to manually remove this file before starting " | |
2988 | "wpa_supplicant again.\n", | |
2989 | wpa_s->conf->ctrl_interface); | |
2990 | return -1; | |
2991 | } | |
2992 | ||
04ea7b79 JM |
2993 | wpa_s->gas = gas_query_init(wpa_s); |
2994 | if (wpa_s->gas == NULL) { | |
2995 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); | |
2996 | return -1; | |
2997 | } | |
2998 | ||
b22128ef JM |
2999 | #ifdef CONFIG_P2P |
3000 | if (wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
f049052b | 3001 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); |
b22128ef JM |
3002 | return -1; |
3003 | } | |
3004 | #endif /* CONFIG_P2P */ | |
3005 | ||
83922c2d JM |
3006 | if (wpa_bss_init(wpa_s) < 0) |
3007 | return -1; | |
83922c2d | 3008 | |
f64adcd7 JM |
3009 | if (pcsc_reader_init(wpa_s) < 0) |
3010 | return -1; | |
3011 | ||
306ae225 JM |
3012 | if (wpas_init_ext_pw(wpa_s) < 0) |
3013 | return -1; | |
3014 | ||
6fc6879b JM |
3015 | return 0; |
3016 | } | |
3017 | ||
3018 | ||
2ee055b3 | 3019 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, |
df509539 | 3020 | int notify, int terminate) |
6fc6879b JM |
3021 | { |
3022 | if (wpa_s->drv_priv) { | |
3023 | wpa_supplicant_deauthenticate(wpa_s, | |
3024 | WLAN_REASON_DEAUTH_LEAVING); | |
3025 | ||
6fc6879b JM |
3026 | wpa_drv_set_countermeasures(wpa_s, 0); |
3027 | wpa_clear_keys(wpa_s, NULL); | |
3028 | } | |
3029 | ||
8e56d189 JM |
3030 | wpa_supplicant_cleanup(wpa_s); |
3031 | ||
ab28911d JM |
3032 | #ifdef CONFIG_P2P |
3033 | if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) { | |
3034 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing " | |
3035 | "the management interface is being removed"); | |
3036 | wpas_p2p_deinit_global(wpa_s->global); | |
3037 | } | |
3038 | #endif /* CONFIG_P2P */ | |
3039 | ||
6fc6879b JM |
3040 | if (wpa_s->drv_priv) |
3041 | wpa_drv_deinit(wpa_s); | |
2523ff6e DS |
3042 | |
3043 | if (notify) | |
3044 | wpas_notify_iface_removed(wpa_s); | |
f0811516 DS |
3045 | |
3046 | if (terminate) | |
3047 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING); | |
3048 | ||
3049 | if (wpa_s->ctrl_iface) { | |
3050 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
3051 | wpa_s->ctrl_iface = NULL; | |
3052 | } | |
3053 | ||
3054 | if (wpa_s->conf != NULL) { | |
3055 | wpa_config_free(wpa_s->conf); | |
3056 | wpa_s->conf = NULL; | |
3057 | } | |
6fc6879b JM |
3058 | } |
3059 | ||
3060 | ||
3061 | /** | |
3062 | * wpa_supplicant_add_iface - Add a new network interface | |
3063 | * @global: Pointer to global data from wpa_supplicant_init() | |
3064 | * @iface: Interface configuration options | |
3065 | * Returns: Pointer to the created interface or %NULL on failure | |
3066 | * | |
3067 | * This function is used to add new network interfaces for %wpa_supplicant. | |
3068 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
3069 | * main event loop has been started. In addition, new interfaces can be added | |
3070 | * dynamically while %wpa_supplicant is already running. This could happen, | |
3071 | * e.g., when a hotplug network adapter is inserted. | |
3072 | */ | |
3073 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
3074 | struct wpa_interface *iface) | |
3075 | { | |
3076 | struct wpa_supplicant *wpa_s; | |
d27df100 | 3077 | struct wpa_interface t_iface; |
8e56d189 | 3078 | struct wpa_ssid *ssid; |
6fc6879b JM |
3079 | |
3080 | if (global == NULL || iface == NULL) | |
3081 | return NULL; | |
3082 | ||
3083 | wpa_s = wpa_supplicant_alloc(); | |
3084 | if (wpa_s == NULL) | |
3085 | return NULL; | |
3086 | ||
d8222ae3 JM |
3087 | wpa_s->global = global; |
3088 | ||
d27df100 JM |
3089 | t_iface = *iface; |
3090 | if (global->params.override_driver) { | |
3091 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
3092 | "('%s' -> '%s')", | |
3093 | iface->driver, global->params.override_driver); | |
3094 | t_iface.driver = global->params.override_driver; | |
3095 | } | |
3096 | if (global->params.override_ctrl_interface) { | |
3097 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
3098 | "ctrl_interface ('%s' -> '%s')", | |
3099 | iface->ctrl_interface, | |
3100 | global->params.override_ctrl_interface); | |
3101 | t_iface.ctrl_interface = | |
3102 | global->params.override_ctrl_interface; | |
3103 | } | |
3104 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
6fc6879b JM |
3105 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", |
3106 | iface->ifname); | |
df509539 | 3107 | wpa_supplicant_deinit_iface(wpa_s, 0, 0); |
6fc6879b JM |
3108 | os_free(wpa_s); |
3109 | return NULL; | |
3110 | } | |
3111 | ||
dc461de4 WS |
3112 | /* Notify the control interfaces about new iface */ |
3113 | if (wpas_notify_iface_added(wpa_s)) { | |
df509539 | 3114 | wpa_supplicant_deinit_iface(wpa_s, 1, 0); |
6fc6879b JM |
3115 | os_free(wpa_s); |
3116 | return NULL; | |
3117 | } | |
1bd3f426 | 3118 | |
8e56d189 JM |
3119 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) |
3120 | wpas_notify_network_added(wpa_s, ssid); | |
3121 | ||
6fc6879b JM |
3122 | wpa_s->next = global->ifaces; |
3123 | global->ifaces = wpa_s; | |
3124 | ||
f049052b | 3125 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); |
99218999 | 3126 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
6fc6879b JM |
3127 | |
3128 | return wpa_s; | |
3129 | } | |
3130 | ||
3131 | ||
3132 | /** | |
3133 | * wpa_supplicant_remove_iface - Remove a network interface | |
3134 | * @global: Pointer to global data from wpa_supplicant_init() | |
3135 | * @wpa_s: Pointer to the network interface to be removed | |
3136 | * Returns: 0 if interface was removed, -1 if interface was not found | |
3137 | * | |
3138 | * This function can be used to dynamically remove network interfaces from | |
3139 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
3140 | * addition, this function is used to remove all remaining interfaces when | |
3141 | * %wpa_supplicant is terminated. | |
3142 | */ | |
3143 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
df509539 DS |
3144 | struct wpa_supplicant *wpa_s, |
3145 | int terminate) | |
6fc6879b JM |
3146 | { |
3147 | struct wpa_supplicant *prev; | |
3148 | ||
3149 | /* Remove interface from the global list of interfaces */ | |
3150 | prev = global->ifaces; | |
3151 | if (prev == wpa_s) { | |
3152 | global->ifaces = wpa_s->next; | |
3153 | } else { | |
3154 | while (prev && prev->next != wpa_s) | |
3155 | prev = prev->next; | |
3156 | if (prev == NULL) | |
3157 | return -1; | |
3158 | prev->next = wpa_s->next; | |
3159 | } | |
3160 | ||
f049052b | 3161 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); |
6fc6879b | 3162 | |
b22128ef JM |
3163 | if (global->p2p_group_formation == wpa_s) |
3164 | global->p2p_group_formation = NULL; | |
dbca75f8 JM |
3165 | if (global->p2p_invite_group == wpa_s) |
3166 | global->p2p_invite_group = NULL; | |
df509539 | 3167 | wpa_supplicant_deinit_iface(wpa_s, 1, terminate); |
6fc6879b JM |
3168 | os_free(wpa_s); |
3169 | ||
3170 | return 0; | |
3171 | } | |
3172 | ||
3173 | ||
cf83fb0b PS |
3174 | /** |
3175 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
3176 | * @wpa_s: Pointer to the network interface | |
3177 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
3178 | */ | |
3179 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
3180 | { | |
3181 | const char *eapol_method; | |
3182 | ||
3183 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
3184 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
3185 | return "NO-EAP"; | |
3186 | } | |
3187 | ||
3188 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
3189 | if (eapol_method == NULL) | |
3190 | return "UNKNOWN-EAP"; | |
3191 | ||
3192 | return eapol_method; | |
3193 | } | |
3194 | ||
3195 | ||
6fc6879b JM |
3196 | /** |
3197 | * wpa_supplicant_get_iface - Get a new network interface | |
3198 | * @global: Pointer to global data from wpa_supplicant_init() | |
3199 | * @ifname: Interface name | |
3200 | * Returns: Pointer to the interface or %NULL if not found | |
3201 | */ | |
3202 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
3203 | const char *ifname) | |
3204 | { | |
3205 | struct wpa_supplicant *wpa_s; | |
3206 | ||
3207 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
3208 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
3209 | return wpa_s; | |
3210 | } | |
3211 | return NULL; | |
3212 | } | |
3213 | ||
3214 | ||
50b16da1 | 3215 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae BG |
3216 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) |
3217 | { | |
3218 | struct wpa_supplicant *wpa_s = ctx; | |
3219 | if (wpa_s == NULL) | |
3220 | return NULL; | |
3221 | return wpa_s->ifname; | |
3222 | } | |
50b16da1 | 3223 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae BG |
3224 | |
3225 | ||
6fc6879b JM |
3226 | /** |
3227 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
3228 | * @params: Parameters for %wpa_supplicant | |
3229 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
3230 | * | |
3231 | * This function is used to initialize %wpa_supplicant. After successful | |
3232 | * initialization, the returned data pointer can be used to add and remove | |
3233 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
3234 | */ | |
3235 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
3236 | { | |
3237 | struct wpa_global *global; | |
ac305589 | 3238 | int ret, i; |
6fc6879b JM |
3239 | |
3240 | if (params == NULL) | |
3241 | return NULL; | |
3242 | ||
39e7d718 JM |
3243 | #ifdef CONFIG_DRIVER_NDIS |
3244 | { | |
3245 | void driver_ndis_init_ops(void); | |
3246 | driver_ndis_init_ops(); | |
3247 | } | |
3248 | #endif /* CONFIG_DRIVER_NDIS */ | |
3249 | ||
50b16da1 | 3250 | #ifndef CONFIG_NO_WPA_MSG |
4f1495ae | 3251 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); |
50b16da1 | 3252 | #endif /* CONFIG_NO_WPA_MSG */ |
4f1495ae | 3253 | |
6fc6879b | 3254 | wpa_debug_open_file(params->wpa_debug_file_path); |
daa70d49 SL |
3255 | if (params->wpa_debug_syslog) |
3256 | wpa_debug_open_syslog(); | |
4f68895e JB |
3257 | if (params->wpa_debug_tracing) { |
3258 | ret = wpa_debug_open_linux_tracing(); | |
3259 | if (ret) { | |
3260 | wpa_printf(MSG_ERROR, | |
3261 | "Failed to enable trace logging"); | |
3262 | return NULL; | |
3263 | } | |
3264 | } | |
6fc6879b | 3265 | |
12760815 | 3266 | ret = eap_register_methods(); |
6fc6879b JM |
3267 | if (ret) { |
3268 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
3269 | if (ret == -2) | |
3270 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
3271 | "the same EAP type."); | |
3272 | return NULL; | |
3273 | } | |
3274 | ||
3275 | global = os_zalloc(sizeof(*global)); | |
3276 | if (global == NULL) | |
3277 | return NULL; | |
b22128ef JM |
3278 | dl_list_init(&global->p2p_srv_bonjour); |
3279 | dl_list_init(&global->p2p_srv_upnp); | |
6fc6879b JM |
3280 | global->params.daemonize = params->daemonize; |
3281 | global->params.wait_for_monitor = params->wait_for_monitor; | |
3282 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
3283 | if (params->pid_file) | |
3284 | global->params.pid_file = os_strdup(params->pid_file); | |
3285 | if (params->ctrl_interface) | |
3286 | global->params.ctrl_interface = | |
3287 | os_strdup(params->ctrl_interface); | |
d27df100 JM |
3288 | if (params->override_driver) |
3289 | global->params.override_driver = | |
3290 | os_strdup(params->override_driver); | |
3291 | if (params->override_ctrl_interface) | |
3292 | global->params.override_ctrl_interface = | |
3293 | os_strdup(params->override_ctrl_interface); | |
6fc6879b JM |
3294 | wpa_debug_level = global->params.wpa_debug_level = |
3295 | params->wpa_debug_level; | |
3296 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
3297 | params->wpa_debug_show_keys; | |
3298 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
3299 | params->wpa_debug_timestamp; | |
3300 | ||
f19858f5 JM |
3301 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); |
3302 | ||
0456ea16 | 3303 | if (eloop_init()) { |
6fc6879b JM |
3304 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
3305 | wpa_supplicant_deinit(global); | |
3306 | return NULL; | |
3307 | } | |
3308 | ||
38e24575 | 3309 | random_init(params->entropy_file); |
d47fa330 | 3310 | |
6fc6879b JM |
3311 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); |
3312 | if (global->ctrl_iface == NULL) { | |
3313 | wpa_supplicant_deinit(global); | |
3314 | return NULL; | |
3315 | } | |
3316 | ||
dc461de4 WS |
3317 | if (wpas_notify_supplicant_initialized(global)) { |
3318 | wpa_supplicant_deinit(global); | |
3319 | return NULL; | |
6fc6879b JM |
3320 | } |
3321 | ||
c5121837 | 3322 | for (i = 0; wpa_drivers[i]; i++) |
ac305589 JM |
3323 | global->drv_count++; |
3324 | if (global->drv_count == 0) { | |
3325 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
3326 | wpa_supplicant_deinit(global); | |
3327 | return NULL; | |
3328 | } | |
3329 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
3330 | if (global->drv_priv == NULL) { | |
3331 | wpa_supplicant_deinit(global); | |
3332 | return NULL; | |
3333 | } | |
ac305589 | 3334 | |
9675ce35 JM |
3335 | #ifdef CONFIG_WIFI_DISPLAY |
3336 | if (wifi_display_init(global) < 0) { | |
3337 | wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display"); | |
3338 | wpa_supplicant_deinit(global); | |
3339 | return NULL; | |
3340 | } | |
3341 | #endif /* CONFIG_WIFI_DISPLAY */ | |
3342 | ||
6fc6879b JM |
3343 | return global; |
3344 | } | |
3345 | ||
3346 | ||
3347 | /** | |
3348 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
3349 | * @global: Pointer to global data from wpa_supplicant_init() | |
3350 | * Returns: 0 after successful event loop run, -1 on failure | |
3351 | * | |
3352 | * This function starts the main event loop and continues running as long as | |
3353 | * there are any remaining events. In most cases, this function is running as | |
3354 | * long as the %wpa_supplicant process in still in use. | |
3355 | */ | |
3356 | int wpa_supplicant_run(struct wpa_global *global) | |
3357 | { | |
3358 | struct wpa_supplicant *wpa_s; | |
3359 | ||
3360 | if (global->params.daemonize && | |
3361 | wpa_supplicant_daemon(global->params.pid_file)) | |
3362 | return -1; | |
3363 | ||
3364 | if (global->params.wait_for_monitor) { | |
3365 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
3366 | if (wpa_s->ctrl_iface) | |
3367 | wpa_supplicant_ctrl_iface_wait( | |
3368 | wpa_s->ctrl_iface); | |
3369 | } | |
3370 | ||
0456ea16 JM |
3371 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); |
3372 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
6fc6879b JM |
3373 | |
3374 | eloop_run(); | |
3375 | ||
3376 | return 0; | |
3377 | } | |
3378 | ||
3379 | ||
3380 | /** | |
3381 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
3382 | * @global: Pointer to global data from wpa_supplicant_init() | |
3383 | * | |
3384 | * This function is called to deinitialize %wpa_supplicant and to free all | |
3385 | * allocated resources. Remaining network interfaces will also be removed. | |
3386 | */ | |
3387 | void wpa_supplicant_deinit(struct wpa_global *global) | |
3388 | { | |
ac305589 JM |
3389 | int i; |
3390 | ||
6fc6879b JM |
3391 | if (global == NULL) |
3392 | return; | |
3393 | ||
9675ce35 JM |
3394 | #ifdef CONFIG_WIFI_DISPLAY |
3395 | wifi_display_deinit(global); | |
3396 | #endif /* CONFIG_WIFI_DISPLAY */ | |
b22128ef JM |
3397 | #ifdef CONFIG_P2P |
3398 | wpas_p2p_deinit_global(global); | |
3399 | #endif /* CONFIG_P2P */ | |
3400 | ||
6fc6879b | 3401 | while (global->ifaces) |
df509539 | 3402 | wpa_supplicant_remove_iface(global, global->ifaces, 1); |
6fc6879b JM |
3403 | |
3404 | if (global->ctrl_iface) | |
3405 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
dc461de4 WS |
3406 | |
3407 | wpas_notify_supplicant_deinitialized(global); | |
6fc6879b JM |
3408 | |
3409 | eap_peer_unregister_methods(); | |
3ec97afe JM |
3410 | #ifdef CONFIG_AP |
3411 | eap_server_unregister_methods(); | |
3412 | #endif /* CONFIG_AP */ | |
6fc6879b | 3413 | |
c5121837 | 3414 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { |
ac305589 JM |
3415 | if (!global->drv_priv[i]) |
3416 | continue; | |
c5121837 | 3417 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); |
ac305589 JM |
3418 | } |
3419 | os_free(global->drv_priv); | |
3420 | ||
d47fa330 JM |
3421 | random_deinit(); |
3422 | ||
6fc6879b JM |
3423 | eloop_destroy(); |
3424 | ||
3425 | if (global->params.pid_file) { | |
3426 | os_daemonize_terminate(global->params.pid_file); | |
3427 | os_free(global->params.pid_file); | |
3428 | } | |
3429 | os_free(global->params.ctrl_interface); | |
d27df100 JM |
3430 | os_free(global->params.override_driver); |
3431 | os_free(global->params.override_ctrl_interface); | |
6fc6879b | 3432 | |
6f3bc72b JM |
3433 | os_free(global->p2p_disallow_freq); |
3434 | ||
6fc6879b | 3435 | os_free(global); |
daa70d49 | 3436 | wpa_debug_close_syslog(); |
6fc6879b | 3437 | wpa_debug_close_file(); |
4f68895e | 3438 | wpa_debug_close_linux_tracing(); |
6fc6879b | 3439 | } |
611aea7d JM |
3440 | |
3441 | ||
3442 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
3443 | { | |
849b5dc7 JM |
3444 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && |
3445 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { | |
3446 | char country[3]; | |
3447 | country[0] = wpa_s->conf->country[0]; | |
3448 | country[1] = wpa_s->conf->country[1]; | |
3449 | country[2] = '\0'; | |
3450 | if (wpa_drv_set_country(wpa_s, country) < 0) { | |
3451 | wpa_printf(MSG_ERROR, "Failed to set country code " | |
3452 | "'%s'", country); | |
3453 | } | |
3454 | } | |
3455 | ||
306ae225 JM |
3456 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND) |
3457 | wpas_init_ext_pw(wpa_s); | |
3458 | ||
611aea7d JM |
3459 | #ifdef CONFIG_WPS |
3460 | wpas_wps_update_config(wpa_s); | |
3461 | #endif /* CONFIG_WPS */ | |
3462 | ||
b22128ef JM |
3463 | #ifdef CONFIG_P2P |
3464 | wpas_p2p_update_config(wpa_s); | |
3465 | #endif /* CONFIG_P2P */ | |
3466 | ||
611aea7d JM |
3467 | wpa_s->conf->changed_parameters = 0; |
3468 | } | |
2f9c6aa6 JM |
3469 | |
3470 | ||
0fb337c1 JM |
3471 | static void add_freq(int *freqs, int *num_freqs, int freq) |
3472 | { | |
3473 | int i; | |
3474 | ||
3475 | for (i = 0; i < *num_freqs; i++) { | |
3476 | if (freqs[i] == freq) | |
3477 | return; | |
3478 | } | |
3479 | ||
3480 | freqs[*num_freqs] = freq; | |
3481 | (*num_freqs)++; | |
3482 | } | |
3483 | ||
3484 | ||
3485 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
3486 | { | |
3487 | struct wpa_bss *bss, *cbss; | |
3488 | const int max_freqs = 10; | |
3489 | int *freqs; | |
3490 | int num_freqs = 0; | |
3491 | ||
3492 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
3493 | if (freqs == NULL) | |
3494 | return NULL; | |
3495 | ||
3496 | cbss = wpa_s->current_bss; | |
3497 | ||
3498 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
3499 | if (bss == cbss) | |
3500 | continue; | |
3501 | if (bss->ssid_len == cbss->ssid_len && | |
3502 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
3503 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
3504 | add_freq(freqs, &num_freqs, bss->freq); | |
3505 | if (num_freqs == max_freqs) | |
3506 | break; | |
3507 | } | |
3508 | } | |
3509 | ||
3510 | if (num_freqs == 0) { | |
3511 | os_free(freqs); | |
3512 | freqs = NULL; | |
3513 | } | |
3514 | ||
3515 | return freqs; | |
3516 | } | |
3517 | ||
3518 | ||
3519 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
3520 | { | |
3521 | int timeout; | |
3522 | int count; | |
3523 | int *freqs = NULL; | |
3524 | ||
5fd9fb27 JM |
3525 | /* |
3526 | * Remove possible authentication timeout since the connection failed. | |
3527 | */ | |
3528 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
3529 | ||
0fb337c1 JM |
3530 | /* |
3531 | * Add the failed BSSID into the blacklist and speed up next scan | |
3532 | * attempt if there could be other APs that could accept association. | |
3533 | * The current blacklist count indicates how many times we have tried | |
3534 | * connecting to this AP and multiple attempts mean that other APs are | |
3535 | * either not available or has already been tried, so that we can start | |
3536 | * increasing the delay here to avoid constant scanning. | |
3537 | */ | |
3538 | count = wpa_blacklist_add(wpa_s, bssid); | |
3539 | if (count == 1 && wpa_s->current_bss) { | |
3540 | /* | |
3541 | * This BSS was not in the blacklist before. If there is | |
3542 | * another BSS available for the same ESS, we should try that | |
3543 | * next. Otherwise, we may as well try this one once more | |
3544 | * before allowing other, likely worse, ESSes to be considered. | |
3545 | */ | |
3546 | freqs = get_bss_freqs_in_ess(wpa_s); | |
3547 | if (freqs) { | |
f049052b BG |
3548 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " |
3549 | "has been seen; try it next"); | |
0fb337c1 JM |
3550 | wpa_blacklist_add(wpa_s, bssid); |
3551 | /* | |
3552 | * On the next scan, go through only the known channels | |
3553 | * used in this ESS based on previous scans to speed up | |
3554 | * common load balancing use case. | |
3555 | */ | |
3556 | os_free(wpa_s->next_scan_freqs); | |
3557 | wpa_s->next_scan_freqs = freqs; | |
3558 | } | |
3559 | } | |
3560 | ||
f1a52633 JM |
3561 | /* |
3562 | * Add previous failure count in case the temporary blacklist was | |
3563 | * cleared due to no other BSSes being available. | |
3564 | */ | |
3565 | count += wpa_s->extra_blacklist_count; | |
3566 | ||
0fb337c1 JM |
3567 | switch (count) { |
3568 | case 1: | |
3569 | timeout = 100; | |
3570 | break; | |
3571 | case 2: | |
3572 | timeout = 500; | |
3573 | break; | |
3574 | case 3: | |
3575 | timeout = 1000; | |
3576 | break; | |
f1a52633 | 3577 | case 4: |
0fb337c1 | 3578 | timeout = 5000; |
f1a52633 JM |
3579 | break; |
3580 | default: | |
3581 | timeout = 10000; | |
3582 | break; | |
0fb337c1 JM |
3583 | } |
3584 | ||
f1a52633 JM |
3585 | wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d " |
3586 | "ms", count, timeout); | |
3587 | ||
0fb337c1 JM |
3588 | /* |
3589 | * TODO: if more than one possible AP is available in scan results, | |
3590 | * could try the other ones before requesting a new scan. | |
3591 | */ | |
3592 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
3593 | 1000 * (timeout % 1000)); | |
99fcd404 | 3594 | |
f85f545e | 3595 | wpas_p2p_continue_after_scan(wpa_s); |
0fb337c1 | 3596 | } |
22628eca JM |
3597 | |
3598 | ||
3599 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) | |
3600 | { | |
3601 | return wpa_s->conf->ap_scan == 2 || | |
3602 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); | |
3603 | } | |
d2118814 JM |
3604 | |
3605 | ||
3606 | #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW) | |
3607 | int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s, | |
3608 | struct wpa_ssid *ssid, | |
3609 | const char *field, | |
3610 | const char *value) | |
3611 | { | |
3612 | #ifdef IEEE8021X_EAPOL | |
3613 | struct eap_peer_config *eap = &ssid->eap; | |
3614 | ||
3615 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field); | |
3616 | wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value", | |
3617 | (const u8 *) value, os_strlen(value)); | |
3618 | ||
3619 | switch (wpa_supplicant_ctrl_req_from_string(field)) { | |
3620 | case WPA_CTRL_REQ_EAP_IDENTITY: | |
3621 | os_free(eap->identity); | |
3622 | eap->identity = (u8 *) os_strdup(value); | |
3623 | eap->identity_len = os_strlen(value); | |
3624 | eap->pending_req_identity = 0; | |
3625 | if (ssid == wpa_s->current_ssid) | |
3626 | wpa_s->reassociate = 1; | |
3627 | break; | |
3628 | case WPA_CTRL_REQ_EAP_PASSWORD: | |
3629 | os_free(eap->password); | |
3630 | eap->password = (u8 *) os_strdup(value); | |
3631 | eap->password_len = os_strlen(value); | |
3632 | eap->pending_req_password = 0; | |
3633 | if (ssid == wpa_s->current_ssid) | |
3634 | wpa_s->reassociate = 1; | |
3635 | break; | |
3636 | case WPA_CTRL_REQ_EAP_NEW_PASSWORD: | |
3637 | os_free(eap->new_password); | |
3638 | eap->new_password = (u8 *) os_strdup(value); | |
3639 | eap->new_password_len = os_strlen(value); | |
3640 | eap->pending_req_new_password = 0; | |
3641 | if (ssid == wpa_s->current_ssid) | |
3642 | wpa_s->reassociate = 1; | |
3643 | break; | |
3644 | case WPA_CTRL_REQ_EAP_PIN: | |
3645 | os_free(eap->pin); | |
3646 | eap->pin = os_strdup(value); | |
3647 | eap->pending_req_pin = 0; | |
3648 | if (ssid == wpa_s->current_ssid) | |
3649 | wpa_s->reassociate = 1; | |
3650 | break; | |
3651 | case WPA_CTRL_REQ_EAP_OTP: | |
3652 | os_free(eap->otp); | |
3653 | eap->otp = (u8 *) os_strdup(value); | |
3654 | eap->otp_len = os_strlen(value); | |
3655 | os_free(eap->pending_req_otp); | |
3656 | eap->pending_req_otp = NULL; | |
3657 | eap->pending_req_otp_len = 0; | |
3658 | break; | |
3659 | case WPA_CTRL_REQ_EAP_PASSPHRASE: | |
3660 | os_free(eap->private_key_passwd); | |
3661 | eap->private_key_passwd = (u8 *) os_strdup(value); | |
3662 | eap->pending_req_passphrase = 0; | |
3663 | if (ssid == wpa_s->current_ssid) | |
3664 | wpa_s->reassociate = 1; | |
3665 | break; | |
3666 | default: | |
3667 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field); | |
3668 | return -1; | |
3669 | } | |
3670 | ||
3671 | return 0; | |
3672 | #else /* IEEE8021X_EAPOL */ | |
3673 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included"); | |
3674 | return -1; | |
3675 | #endif /* IEEE8021X_EAPOL */ | |
3676 | } | |
3677 | #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */ | |
349493bd JM |
3678 | |
3679 | ||
3680 | int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) | |
3681 | { | |
3682 | int i; | |
3683 | unsigned int drv_enc; | |
3684 | ||
3685 | if (ssid == NULL) | |
3686 | return 1; | |
3687 | ||
3688 | if (ssid->disabled) | |
3689 | return 1; | |
3690 | ||
3691 | if (wpa_s && wpa_s->drv_capa_known) | |
3692 | drv_enc = wpa_s->drv_enc; | |
3693 | else | |
3694 | drv_enc = (unsigned int) -1; | |
3695 | ||
3696 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
3697 | size_t len = ssid->wep_key_len[i]; | |
3698 | if (len == 0) | |
3699 | continue; | |
3700 | if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40)) | |
3701 | continue; | |
3702 | if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104)) | |
3703 | continue; | |
3704 | if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128)) | |
3705 | continue; | |
3706 | return 1; /* invalid WEP key */ | |
3707 | } | |
3708 | ||
9173b16f JM |
3709 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set && |
3710 | !ssid->ext_psk) | |
2518aad3 JM |
3711 | return 1; |
3712 | ||
349493bd JM |
3713 | return 0; |
3714 | } | |
b9cfc09a JJ |
3715 | |
3716 | ||
3717 | int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s) | |
3718 | { | |
3719 | if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P) | |
3720 | return 1; | |
3721 | if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA) | |
3722 | return 0; | |
3723 | return -1; | |
3724 | } | |
00e5e3d5 JM |
3725 | |
3726 | ||
3727 | void wpas_auth_failed(struct wpa_supplicant *wpa_s) | |
3728 | { | |
3729 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
3730 | int dur; | |
3731 | struct os_time now; | |
3732 | ||
3733 | if (ssid == NULL) { | |
3734 | wpa_printf(MSG_DEBUG, "Authentication failure but no known " | |
3735 | "SSID block"); | |
3736 | return; | |
3737 | } | |
3738 | ||
3739 | if (ssid->key_mgmt == WPA_KEY_MGMT_WPS) | |
3740 | return; | |
3741 | ||
3742 | ssid->auth_failures++; | |
3743 | if (ssid->auth_failures > 50) | |
3744 | dur = 300; | |
3745 | else if (ssid->auth_failures > 20) | |
3746 | dur = 120; | |
3747 | else if (ssid->auth_failures > 10) | |
3748 | dur = 60; | |
3749 | else if (ssid->auth_failures > 5) | |
3750 | dur = 30; | |
3751 | else if (ssid->auth_failures > 1) | |
3752 | dur = 20; | |
3753 | else | |
3754 | dur = 10; | |
3755 | ||
3756 | os_get_time(&now); | |
3757 | if (now.sec + dur <= ssid->disabled_until.sec) | |
3758 | return; | |
3759 | ||
3760 | ssid->disabled_until.sec = now.sec + dur; | |
3761 | ||
3762 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED | |
3763 | "id=%d ssid=\"%s\" auth_failures=%u duration=%d", | |
3764 | ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len), | |
3765 | ssid->auth_failures, dur); | |
3766 | } | |
3767 | ||
3768 | ||
3769 | void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s, | |
3770 | struct wpa_ssid *ssid, int clear_failures) | |
3771 | { | |
3772 | if (ssid == NULL) | |
3773 | return; | |
3774 | ||
3775 | if (ssid->disabled_until.sec) { | |
3776 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED | |
3777 | "id=%d ssid=\"%s\"", | |
3778 | ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
3779 | } | |
3780 | ssid->disabled_until.sec = 0; | |
3781 | ssid->disabled_until.usec = 0; | |
3782 | if (clear_failures) | |
3783 | ssid->auth_failures = 0; | |
3784 | } | |
6407f413 JM |
3785 | |
3786 | ||
3787 | int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
3788 | { | |
3789 | size_t i; | |
3790 | ||
3791 | if (wpa_s->disallow_aps_bssid == NULL) | |
3792 | return 0; | |
3793 | ||
3794 | for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) { | |
3795 | if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN, | |
3796 | bssid, ETH_ALEN) == 0) | |
3797 | return 1; | |
3798 | } | |
3799 | ||
3800 | return 0; | |
3801 | } | |
3802 | ||
3803 | ||
3804 | int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid, | |
3805 | size_t ssid_len) | |
3806 | { | |
3807 | size_t i; | |
3808 | ||
3809 | if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL) | |
3810 | return 0; | |
3811 | ||
3812 | for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) { | |
3813 | struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i]; | |
3814 | if (ssid_len == s->ssid_len && | |
3815 | os_memcmp(ssid, s->ssid, ssid_len) == 0) | |
3816 | return 1; | |
3817 | } | |
3818 | ||
3819 | return 0; | |
3820 | } | |
9796a86c JM |
3821 | |
3822 | ||
3823 | /** | |
3824 | * wpas_request_connection - Request a new connection | |
3825 | * @wpa_s: Pointer to the network interface | |
3826 | * | |
3827 | * This function is used to request a new connection to be found. It will mark | |
3828 | * the interface to allow reassociation and request a new scan to find a | |
3829 | * suitable network to connect to. | |
3830 | */ | |
3831 | void wpas_request_connection(struct wpa_supplicant *wpa_s) | |
3832 | { | |
3833 | wpa_s->normal_scans = 0; | |
3834 | wpa_supplicant_reinit_autoscan(wpa_s); | |
3835 | wpa_s->extra_blacklist_count = 0; | |
3836 | wpa_s->disconnected = 0; | |
3837 | wpa_s->reassociate = 1; | |
5e24beae MH |
3838 | |
3839 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
3840 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
9796a86c | 3841 | } |