wpas_glue.c revision 1.1.1.1 1 1.1 christos /*
2 1.1 christos * WPA Supplicant - Glue code to setup EAPOL and RSN modules
3 1.1 christos * Copyright (c) 2003-2008, Jouni Malinen <j (at) w1.fi>
4 1.1 christos *
5 1.1 christos * This program is free software; you can redistribute it and/or modify
6 1.1 christos * it under the terms of the GNU General Public License version 2 as
7 1.1 christos * published by the Free Software Foundation.
8 1.1 christos *
9 1.1 christos * Alternatively, this software may be distributed under the terms of BSD
10 1.1 christos * license.
11 1.1 christos *
12 1.1 christos * See README and COPYING for more details.
13 1.1 christos */
14 1.1 christos
15 1.1 christos #include "includes.h"
16 1.1 christos
17 1.1 christos #include "common.h"
18 1.1 christos #include "eapol_supp/eapol_supp_sm.h"
19 1.1 christos #include "rsn_supp/wpa.h"
20 1.1 christos #include "eloop.h"
21 1.1 christos #include "config.h"
22 1.1 christos #include "l2_packet/l2_packet.h"
23 1.1 christos #include "common/wpa_common.h"
24 1.1 christos #include "wpa_supplicant_i.h"
25 1.1 christos #include "driver_i.h"
26 1.1 christos #include "rsn_supp/pmksa_cache.h"
27 1.1 christos #include "mlme.h"
28 1.1 christos #include "sme.h"
29 1.1 christos #include "common/ieee802_11_defs.h"
30 1.1 christos #include "common/wpa_ctrl.h"
31 1.1 christos #include "wpas_glue.h"
32 1.1 christos #include "wps_supplicant.h"
33 1.1 christos #include "bss.h"
34 1.1 christos #include "scan.h"
35 1.1 christos
36 1.1 christos
37 1.1 christos #ifndef CONFIG_NO_CONFIG_BLOBS
38 1.1 christos #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
39 1.1 christos static void wpa_supplicant_set_config_blob(void *ctx,
40 1.1 christos struct wpa_config_blob *blob)
41 1.1 christos {
42 1.1 christos struct wpa_supplicant *wpa_s = ctx;
43 1.1 christos wpa_config_set_blob(wpa_s->conf, blob);
44 1.1 christos if (wpa_s->conf->update_config) {
45 1.1 christos int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
46 1.1 christos if (ret) {
47 1.1 christos wpa_printf(MSG_DEBUG, "Failed to update config after "
48 1.1 christos "blob set");
49 1.1 christos }
50 1.1 christos }
51 1.1 christos }
52 1.1 christos
53 1.1 christos
54 1.1 christos static const struct wpa_config_blob *
55 1.1 christos wpa_supplicant_get_config_blob(void *ctx, const char *name)
56 1.1 christos {
57 1.1 christos struct wpa_supplicant *wpa_s = ctx;
58 1.1 christos return wpa_config_get_blob(wpa_s->conf, name);
59 1.1 christos }
60 1.1 christos #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
61 1.1 christos #endif /* CONFIG_NO_CONFIG_BLOBS */
62 1.1 christos
63 1.1 christos
64 1.1 christos #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
65 1.1 christos static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
66 1.1 christos const void *data, u16 data_len,
67 1.1 christos size_t *msg_len, void **data_pos)
68 1.1 christos {
69 1.1 christos struct ieee802_1x_hdr *hdr;
70 1.1 christos
71 1.1 christos *msg_len = sizeof(*hdr) + data_len;
72 1.1 christos hdr = os_malloc(*msg_len);
73 1.1 christos if (hdr == NULL)
74 1.1 christos return NULL;
75 1.1 christos
76 1.1 christos hdr->version = wpa_s->conf->eapol_version;
77 1.1 christos hdr->type = type;
78 1.1 christos hdr->length = host_to_be16(data_len);
79 1.1 christos
80 1.1 christos if (data)
81 1.1 christos os_memcpy(hdr + 1, data, data_len);
82 1.1 christos else
83 1.1 christos os_memset(hdr + 1, 0, data_len);
84 1.1 christos
85 1.1 christos if (data_pos)
86 1.1 christos *data_pos = hdr + 1;
87 1.1 christos
88 1.1 christos return (u8 *) hdr;
89 1.1 christos }
90 1.1 christos
91 1.1 christos
92 1.1 christos /**
93 1.1 christos * wpa_ether_send - Send Ethernet frame
94 1.1 christos * @wpa_s: Pointer to wpa_supplicant data
95 1.1 christos * @dest: Destination MAC address
96 1.1 christos * @proto: Ethertype in host byte order
97 1.1 christos * @buf: Frame payload starting from IEEE 802.1X header
98 1.1 christos * @len: Frame payload length
99 1.1 christos * Returns: >=0 on success, <0 on failure
100 1.1 christos */
101 1.1 christos static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
102 1.1 christos u16 proto, const u8 *buf, size_t len)
103 1.1 christos {
104 1.1 christos if (wpa_s->l2) {
105 1.1 christos return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
106 1.1 christos }
107 1.1 christos
108 1.1 christos return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
109 1.1 christos }
110 1.1 christos #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
111 1.1 christos
112 1.1 christos
113 1.1 christos #ifdef IEEE8021X_EAPOL
114 1.1 christos
115 1.1 christos /**
116 1.1 christos * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
117 1.1 christos * @ctx: Pointer to wpa_supplicant data (wpa_s)
118 1.1 christos * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
119 1.1 christos * @buf: EAPOL payload (after IEEE 802.1X header)
120 1.1 christos * @len: EAPOL payload length
121 1.1 christos * Returns: >=0 on success, <0 on failure
122 1.1 christos *
123 1.1 christos * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
124 1.1 christos * to the current Authenticator.
125 1.1 christos */
126 1.1 christos static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
127 1.1 christos size_t len)
128 1.1 christos {
129 1.1 christos struct wpa_supplicant *wpa_s = ctx;
130 1.1 christos u8 *msg, *dst, bssid[ETH_ALEN];
131 1.1 christos size_t msglen;
132 1.1 christos int res;
133 1.1 christos
134 1.1 christos /* TODO: could add l2_packet_sendmsg that allows fragments to avoid
135 1.1 christos * extra copy here */
136 1.1 christos
137 1.1 christos if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
138 1.1 christos wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
139 1.1 christos /* Current SSID is not using IEEE 802.1X/EAP, so drop possible
140 1.1 christos * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
141 1.1 christos * machines. */
142 1.1 christos wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
143 1.1 christos "mode (type=%d len=%lu)", type,
144 1.1 christos (unsigned long) len);
145 1.1 christos return -1;
146 1.1 christos }
147 1.1 christos
148 1.1 christos if (pmksa_cache_get_current(wpa_s->wpa) &&
149 1.1 christos type == IEEE802_1X_TYPE_EAPOL_START) {
150 1.1 christos /* Trying to use PMKSA caching - do not send EAPOL-Start frames
151 1.1 christos * since they will trigger full EAPOL authentication. */
152 1.1 christos wpa_printf(MSG_DEBUG, "RSN: PMKSA caching - do not send "
153 1.1 christos "EAPOL-Start");
154 1.1 christos return -1;
155 1.1 christos }
156 1.1 christos
157 1.1 christos if (is_zero_ether_addr(wpa_s->bssid)) {
158 1.1 christos wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
159 1.1 christos "EAPOL frame");
160 1.1 christos if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
161 1.1 christos !is_zero_ether_addr(bssid)) {
162 1.1 christos dst = bssid;
163 1.1 christos wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
164 1.1 christos " from the driver as the EAPOL destination",
165 1.1 christos MAC2STR(dst));
166 1.1 christos } else {
167 1.1 christos dst = wpa_s->last_eapol_src;
168 1.1 christos wpa_printf(MSG_DEBUG, "Using the source address of the"
169 1.1 christos " last received EAPOL frame " MACSTR " as "
170 1.1 christos "the EAPOL destination",
171 1.1 christos MAC2STR(dst));
172 1.1 christos }
173 1.1 christos } else {
174 1.1 christos /* BSSID was already set (from (Re)Assoc event, so use it as
175 1.1 christos * the EAPOL destination. */
176 1.1 christos dst = wpa_s->bssid;
177 1.1 christos }
178 1.1 christos
179 1.1 christos msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
180 1.1 christos if (msg == NULL)
181 1.1 christos return -1;
182 1.1 christos
183 1.1 christos wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
184 1.1 christos wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
185 1.1 christos res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
186 1.1 christos os_free(msg);
187 1.1 christos return res;
188 1.1 christos }
189 1.1 christos
190 1.1 christos
191 1.1 christos /**
192 1.1 christos * wpa_eapol_set_wep_key - set WEP key for the driver
193 1.1 christos * @ctx: Pointer to wpa_supplicant data (wpa_s)
194 1.1 christos * @unicast: 1 = individual unicast key, 0 = broadcast key
195 1.1 christos * @keyidx: WEP key index (0..3)
196 1.1 christos * @key: Pointer to key data
197 1.1 christos * @keylen: Key length in bytes
198 1.1 christos * Returns: 0 on success or < 0 on error.
199 1.1 christos */
200 1.1 christos static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
201 1.1 christos const u8 *key, size_t keylen)
202 1.1 christos {
203 1.1 christos struct wpa_supplicant *wpa_s = ctx;
204 1.1 christos if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
205 1.1 christos int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
206 1.1 christos WPA_CIPHER_WEP104;
207 1.1 christos if (unicast)
208 1.1 christos wpa_s->pairwise_cipher = cipher;
209 1.1 christos else
210 1.1 christos wpa_s->group_cipher = cipher;
211 1.1 christos }
212 1.1 christos return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
213 1.1 christos unicast ? wpa_s->bssid :
214 1.1 christos (u8 *) "\xff\xff\xff\xff\xff\xff",
215 1.1 christos keyidx, unicast, (u8 *) "", 0, key, keylen);
216 1.1 christos }
217 1.1 christos
218 1.1 christos
219 1.1 christos static void wpa_supplicant_aborted_cached(void *ctx)
220 1.1 christos {
221 1.1 christos struct wpa_supplicant *wpa_s = ctx;
222 1.1 christos wpa_sm_aborted_cached(wpa_s->wpa);
223 1.1 christos }
224 1.1 christos
225 1.1 christos
226 1.1 christos static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, int success,
227 1.1 christos void *ctx)
228 1.1 christos {
229 1.1 christos struct wpa_supplicant *wpa_s = ctx;
230 1.1 christos int res, pmk_len;
231 1.1 christos u8 pmk[PMK_LEN];
232 1.1 christos
233 1.1 christos wpa_printf(MSG_DEBUG, "EAPOL authentication completed %ssuccessfully",
234 1.1 christos success ? "" : "un");
235 1.1 christos
236 1.1 christos if (wpas_wps_eapol_cb(wpa_s) > 0)
237 1.1 christos return;
238 1.1 christos
239 1.1 christos if (!success) {
240 1.1 christos /*
241 1.1 christos * Make sure we do not get stuck here waiting for long EAPOL
242 1.1 christos * timeout if the AP does not disconnect in case of
243 1.1 christos * authentication failure.
244 1.1 christos */
245 1.1 christos wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
246 1.1 christos }
247 1.1 christos
248 1.1 christos if (!success || !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
249 1.1 christos return;
250 1.1 christos
251 1.1 christos if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
252 1.1 christos return;
253 1.1 christos
254 1.1 christos wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
255 1.1 christos "handshake");
256 1.1 christos
257 1.1 christos pmk_len = PMK_LEN;
258 1.1 christos res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
259 1.1 christos if (res) {
260 1.1 christos /*
261 1.1 christos * EAP-LEAP is an exception from other EAP methods: it
262 1.1 christos * uses only 16-byte PMK.
263 1.1 christos */
264 1.1 christos res = eapol_sm_get_key(eapol, pmk, 16);
265 1.1 christos pmk_len = 16;
266 1.1 christos }
267 1.1 christos
268 1.1 christos if (res) {
269 1.1 christos wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
270 1.1 christos "machines");
271 1.1 christos return;
272 1.1 christos }
273 1.1 christos
274 1.1 christos if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
275 1.1 christos pmk_len)) {
276 1.1 christos wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
277 1.1 christos }
278 1.1 christos
279 1.1 christos wpa_supplicant_cancel_scan(wpa_s);
280 1.1 christos wpa_supplicant_cancel_auth_timeout(wpa_s);
281 1.1 christos wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
282 1.1 christos
283 1.1 christos }
284 1.1 christos
285 1.1 christos
286 1.1 christos static void wpa_supplicant_notify_eapol_done(void *ctx)
287 1.1 christos {
288 1.1 christos struct wpa_supplicant *wpa_s = ctx;
289 1.1 christos wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
290 1.1 christos if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
291 1.1 christos wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
292 1.1 christos } else {
293 1.1 christos wpa_supplicant_cancel_auth_timeout(wpa_s);
294 1.1 christos wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
295 1.1 christos }
296 1.1 christos }
297 1.1 christos
298 1.1 christos #endif /* IEEE8021X_EAPOL */
299 1.1 christos
300 1.1 christos
301 1.1 christos #ifndef CONFIG_NO_WPA
302 1.1 christos
303 1.1 christos static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
304 1.1 christos {
305 1.1 christos int ret = 0;
306 1.1 christos struct wpa_bss *curr = NULL, *bss;
307 1.1 christos struct wpa_ssid *ssid = wpa_s->current_ssid;
308 1.1 christos const u8 *ie;
309 1.1 christos
310 1.1 christos dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
311 1.1 christos if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
312 1.1 christos continue;
313 1.1 christos if (ssid == NULL ||
314 1.1 christos ((bss->ssid_len == ssid->ssid_len &&
315 1.1 christos os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
316 1.1 christos ssid->ssid_len == 0)) {
317 1.1 christos curr = bss;
318 1.1 christos break;
319 1.1 christos }
320 1.1 christos }
321 1.1 christos
322 1.1 christos if (curr) {
323 1.1 christos ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
324 1.1 christos if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
325 1.1 christos ret = -1;
326 1.1 christos
327 1.1 christos ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
328 1.1 christos if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
329 1.1 christos ret = -1;
330 1.1 christos } else {
331 1.1 christos ret = -1;
332 1.1 christos }
333 1.1 christos
334 1.1 christos return ret;
335 1.1 christos }
336 1.1 christos
337 1.1 christos
338 1.1 christos static int wpa_supplicant_get_beacon_ie(void *ctx)
339 1.1 christos {
340 1.1 christos struct wpa_supplicant *wpa_s = ctx;
341 1.1 christos if (wpa_get_beacon_ie(wpa_s) == 0) {
342 1.1 christos return 0;
343 1.1 christos }
344 1.1 christos
345 1.1 christos /* No WPA/RSN IE found in the cached scan results. Try to get updated
346 1.1 christos * scan results from the driver. */
347 1.1 christos if (wpa_supplicant_update_scan_results(wpa_s) < 0)
348 1.1 christos return -1;
349 1.1 christos
350 1.1 christos return wpa_get_beacon_ie(wpa_s);
351 1.1 christos }
352 1.1 christos
353 1.1 christos
354 1.1 christos static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
355 1.1 christos const void *data, u16 data_len,
356 1.1 christos size_t *msg_len, void **data_pos)
357 1.1 christos {
358 1.1 christos return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
359 1.1 christos }
360 1.1 christos
361 1.1 christos
362 1.1 christos static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
363 1.1 christos const u8 *buf, size_t len)
364 1.1 christos {
365 1.1 christos return wpa_ether_send(wpa_s, dest, proto, buf, len);
366 1.1 christos }
367 1.1 christos
368 1.1 christos
369 1.1 christos static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
370 1.1 christos {
371 1.1 christos wpa_supplicant_cancel_auth_timeout(wpa_s);
372 1.1 christos }
373 1.1 christos
374 1.1 christos
375 1.1 christos static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
376 1.1 christos {
377 1.1 christos wpa_supplicant_set_state(wpa_s, state);
378 1.1 christos }
379 1.1 christos
380 1.1 christos
381 1.1 christos /**
382 1.1 christos * wpa_supplicant_get_state - Get the connection state
383 1.1 christos * @wpa_s: Pointer to wpa_supplicant data
384 1.1 christos * Returns: The current connection state (WPA_*)
385 1.1 christos */
386 1.1 christos static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
387 1.1 christos {
388 1.1 christos return wpa_s->wpa_state;
389 1.1 christos }
390 1.1 christos
391 1.1 christos
392 1.1 christos static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
393 1.1 christos {
394 1.1 christos return wpa_supplicant_get_state(wpa_s);
395 1.1 christos }
396 1.1 christos
397 1.1 christos
398 1.1 christos static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
399 1.1 christos {
400 1.1 christos wpa_supplicant_disassociate(wpa_s, reason_code);
401 1.1 christos /* Schedule a scan to make sure we continue looking for networks */
402 1.1 christos wpa_supplicant_req_scan(wpa_s, 5, 0);
403 1.1 christos }
404 1.1 christos
405 1.1 christos
406 1.1 christos static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
407 1.1 christos {
408 1.1 christos wpa_supplicant_deauthenticate(wpa_s, reason_code);
409 1.1 christos /* Schedule a scan to make sure we continue looking for networks */
410 1.1 christos wpa_supplicant_req_scan(wpa_s, 5, 0);
411 1.1 christos }
412 1.1 christos
413 1.1 christos
414 1.1 christos static void * wpa_supplicant_get_network_ctx(void *wpa_s)
415 1.1 christos {
416 1.1 christos return wpa_supplicant_get_ssid(wpa_s);
417 1.1 christos }
418 1.1 christos
419 1.1 christos
420 1.1 christos static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
421 1.1 christos {
422 1.1 christos struct wpa_supplicant *wpa_s = ctx;
423 1.1 christos if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) {
424 1.1 christos os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
425 1.1 christos return 0;
426 1.1 christos }
427 1.1 christos return wpa_drv_get_bssid(wpa_s, bssid);
428 1.1 christos }
429 1.1 christos
430 1.1 christos
431 1.1 christos static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
432 1.1 christos const u8 *addr, int key_idx, int set_tx,
433 1.1 christos const u8 *seq, size_t seq_len,
434 1.1 christos const u8 *key, size_t key_len)
435 1.1 christos {
436 1.1 christos struct wpa_supplicant *wpa_s = _wpa_s;
437 1.1 christos if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
438 1.1 christos /* Clear the MIC error counter when setting a new PTK. */
439 1.1 christos wpa_s->mic_errors_seen = 0;
440 1.1 christos }
441 1.1 christos return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
442 1.1 christos key, key_len);
443 1.1 christos }
444 1.1 christos
445 1.1 christos
446 1.1 christos static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
447 1.1 christos int protection_type,
448 1.1 christos int key_type)
449 1.1 christos {
450 1.1 christos return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
451 1.1 christos key_type);
452 1.1 christos }
453 1.1 christos
454 1.1 christos
455 1.1 christos static int wpa_supplicant_add_pmkid(void *wpa_s,
456 1.1 christos const u8 *bssid, const u8 *pmkid)
457 1.1 christos {
458 1.1 christos return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
459 1.1 christos }
460 1.1 christos
461 1.1 christos
462 1.1 christos static int wpa_supplicant_remove_pmkid(void *wpa_s,
463 1.1 christos const u8 *bssid, const u8 *pmkid)
464 1.1 christos {
465 1.1 christos return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
466 1.1 christos }
467 1.1 christos
468 1.1 christos
469 1.1 christos #ifdef CONFIG_IEEE80211R
470 1.1 christos static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
471 1.1 christos const u8 *ies, size_t ies_len)
472 1.1 christos {
473 1.1 christos struct wpa_supplicant *wpa_s = ctx;
474 1.1 christos if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
475 1.1 christos return ieee80211_sta_update_ft_ies(wpa_s, md, ies, ies_len);
476 1.1 christos if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
477 1.1 christos return sme_update_ft_ies(wpa_s, md, ies, ies_len);
478 1.1 christos return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
479 1.1 christos }
480 1.1 christos
481 1.1 christos
482 1.1 christos static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
483 1.1 christos const u8 *target_ap,
484 1.1 christos const u8 *ies, size_t ies_len)
485 1.1 christos {
486 1.1 christos struct wpa_supplicant *wpa_s = ctx;
487 1.1 christos if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
488 1.1 christos return ieee80211_sta_send_ft_action(wpa_s, action, target_ap,
489 1.1 christos ies, ies_len);
490 1.1 christos return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len);
491 1.1 christos }
492 1.1 christos
493 1.1 christos
494 1.1 christos static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
495 1.1 christos {
496 1.1 christos struct wpa_supplicant *wpa_s = ctx;
497 1.1 christos struct wpa_driver_auth_params params;
498 1.1 christos struct wpa_bss *bss;
499 1.1 christos
500 1.1 christos if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
501 1.1 christos return -1;
502 1.1 christos
503 1.1 christos bss = wpa_bss_get_bssid(wpa_s, target_ap);
504 1.1 christos if (bss == NULL)
505 1.1 christos return -1;
506 1.1 christos
507 1.1 christos os_memset(¶ms, 0, sizeof(params));
508 1.1 christos params.bssid = target_ap;
509 1.1 christos params.freq = bss->freq;
510 1.1 christos params.ssid = bss->ssid;
511 1.1 christos params.ssid_len = bss->ssid_len;
512 1.1 christos params.auth_alg = WPA_AUTH_ALG_FT;
513 1.1 christos params.local_state_change = 1;
514 1.1 christos return wpa_drv_authenticate(wpa_s, ¶ms);
515 1.1 christos }
516 1.1 christos #endif /* CONFIG_IEEE80211R */
517 1.1 christos
518 1.1 christos #endif /* CONFIG_NO_WPA */
519 1.1 christos
520 1.1 christos
521 1.1 christos #ifdef IEEE8021X_EAPOL
522 1.1 christos #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
523 1.1 christos static void wpa_supplicant_eap_param_needed(void *ctx, const char *field,
524 1.1 christos const char *txt)
525 1.1 christos {
526 1.1 christos struct wpa_supplicant *wpa_s = ctx;
527 1.1 christos struct wpa_ssid *ssid = wpa_s->current_ssid;
528 1.1 christos char *buf;
529 1.1 christos size_t buflen;
530 1.1 christos int len;
531 1.1 christos
532 1.1 christos if (ssid == NULL)
533 1.1 christos return;
534 1.1 christos
535 1.1 christos buflen = 100 + os_strlen(txt) + ssid->ssid_len;
536 1.1 christos buf = os_malloc(buflen);
537 1.1 christos if (buf == NULL)
538 1.1 christos return;
539 1.1 christos len = os_snprintf(buf, buflen,
540 1.1 christos WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
541 1.1 christos field, ssid->id, txt);
542 1.1 christos if (len < 0 || (size_t) len >= buflen) {
543 1.1 christos os_free(buf);
544 1.1 christos return;
545 1.1 christos }
546 1.1 christos if (ssid->ssid && buflen > len + ssid->ssid_len) {
547 1.1 christos os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
548 1.1 christos len += ssid->ssid_len;
549 1.1 christos buf[len] = '\0';
550 1.1 christos }
551 1.1 christos buf[buflen - 1] = '\0';
552 1.1 christos wpa_msg(wpa_s, MSG_INFO, "%s", buf);
553 1.1 christos os_free(buf);
554 1.1 christos }
555 1.1 christos #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
556 1.1 christos #define wpa_supplicant_eap_param_needed NULL
557 1.1 christos #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
558 1.1 christos
559 1.1 christos
560 1.1 christos static void wpa_supplicant_port_cb(void *ctx, int authorized)
561 1.1 christos {
562 1.1 christos struct wpa_supplicant *wpa_s = ctx;
563 1.1 christos wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
564 1.1 christos authorized ? "Authorized" : "Unauthorized");
565 1.1 christos wpa_drv_set_supp_port(wpa_s, authorized);
566 1.1 christos }
567 1.1 christos #endif /* IEEE8021X_EAPOL */
568 1.1 christos
569 1.1 christos
570 1.1 christos int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
571 1.1 christos {
572 1.1 christos #ifdef IEEE8021X_EAPOL
573 1.1 christos struct eapol_ctx *ctx;
574 1.1 christos ctx = os_zalloc(sizeof(*ctx));
575 1.1 christos if (ctx == NULL) {
576 1.1 christos wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
577 1.1 christos return -1;
578 1.1 christos }
579 1.1 christos
580 1.1 christos ctx->ctx = wpa_s;
581 1.1 christos ctx->msg_ctx = wpa_s;
582 1.1 christos ctx->eapol_send_ctx = wpa_s;
583 1.1 christos ctx->preauth = 0;
584 1.1 christos ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
585 1.1 christos ctx->eapol_send = wpa_supplicant_eapol_send;
586 1.1 christos ctx->set_wep_key = wpa_eapol_set_wep_key;
587 1.1 christos ctx->set_config_blob = wpa_supplicant_set_config_blob;
588 1.1 christos ctx->get_config_blob = wpa_supplicant_get_config_blob;
589 1.1 christos ctx->aborted_cached = wpa_supplicant_aborted_cached;
590 1.1 christos ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
591 1.1 christos ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
592 1.1 christos ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
593 1.1 christos ctx->wps = wpa_s->wps;
594 1.1 christos ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
595 1.1 christos ctx->port_cb = wpa_supplicant_port_cb;
596 1.1 christos ctx->cb = wpa_supplicant_eapol_cb;
597 1.1 christos ctx->cb_ctx = wpa_s;
598 1.1 christos wpa_s->eapol = eapol_sm_init(ctx);
599 1.1 christos if (wpa_s->eapol == NULL) {
600 1.1 christos os_free(ctx);
601 1.1 christos wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
602 1.1 christos "machines.");
603 1.1 christos return -1;
604 1.1 christos }
605 1.1 christos #endif /* IEEE8021X_EAPOL */
606 1.1 christos
607 1.1 christos return 0;
608 1.1 christos }
609 1.1 christos
610 1.1 christos
611 1.1 christos int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
612 1.1 christos {
613 1.1 christos #ifndef CONFIG_NO_WPA
614 1.1 christos struct wpa_sm_ctx *ctx;
615 1.1 christos ctx = os_zalloc(sizeof(*ctx));
616 1.1 christos if (ctx == NULL) {
617 1.1 christos wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
618 1.1 christos return -1;
619 1.1 christos }
620 1.1 christos
621 1.1 christos ctx->ctx = wpa_s;
622 1.1 christos ctx->msg_ctx = wpa_s;
623 1.1 christos ctx->set_state = _wpa_supplicant_set_state;
624 1.1 christos ctx->get_state = _wpa_supplicant_get_state;
625 1.1 christos ctx->deauthenticate = _wpa_supplicant_deauthenticate;
626 1.1 christos ctx->disassociate = _wpa_supplicant_disassociate;
627 1.1 christos ctx->set_key = wpa_supplicant_set_key;
628 1.1 christos ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
629 1.1 christos ctx->get_bssid = wpa_supplicant_get_bssid;
630 1.1 christos ctx->ether_send = _wpa_ether_send;
631 1.1 christos ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
632 1.1 christos ctx->alloc_eapol = _wpa_alloc_eapol;
633 1.1 christos ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
634 1.1 christos ctx->add_pmkid = wpa_supplicant_add_pmkid;
635 1.1 christos ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
636 1.1 christos #ifndef CONFIG_NO_CONFIG_BLOBS
637 1.1 christos ctx->set_config_blob = wpa_supplicant_set_config_blob;
638 1.1 christos ctx->get_config_blob = wpa_supplicant_get_config_blob;
639 1.1 christos #endif /* CONFIG_NO_CONFIG_BLOBS */
640 1.1 christos ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
641 1.1 christos #ifdef CONFIG_IEEE80211R
642 1.1 christos ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
643 1.1 christos ctx->send_ft_action = wpa_supplicant_send_ft_action;
644 1.1 christos ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
645 1.1 christos #endif /* CONFIG_IEEE80211R */
646 1.1 christos
647 1.1 christos wpa_s->wpa = wpa_sm_init(ctx);
648 1.1 christos if (wpa_s->wpa == NULL) {
649 1.1 christos wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
650 1.1 christos "machine");
651 1.1 christos return -1;
652 1.1 christos }
653 1.1 christos #endif /* CONFIG_NO_WPA */
654 1.1 christos
655 1.1 christos return 0;
656 1.1 christos }
657 1.1 christos
658 1.1 christos
659 1.1 christos void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
660 1.1 christos struct wpa_ssid *ssid)
661 1.1 christos {
662 1.1 christos struct rsn_supp_config conf;
663 1.1 christos if (ssid) {
664 1.1 christos os_memset(&conf, 0, sizeof(conf));
665 1.1 christos conf.network_ctx = ssid;
666 1.1 christos conf.peerkey_enabled = ssid->peerkey;
667 1.1 christos conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
668 1.1 christos #ifdef IEEE8021X_EAPOL
669 1.1 christos conf.eap_workaround = ssid->eap_workaround;
670 1.1 christos conf.eap_conf_ctx = &ssid->eap;
671 1.1 christos #endif /* IEEE8021X_EAPOL */
672 1.1 christos conf.ssid = ssid->ssid;
673 1.1 christos conf.ssid_len = ssid->ssid_len;
674 1.1 christos conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
675 1.1 christos }
676 1.1 christos wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
677 1.1 christos }
678