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f1a48710 JM |
1 | /* |
2 | * WPA Supplicant - Basic AP mode support routines | |
3 | * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi> | |
4 | * Copyright (c) 2009, Atheros Communications | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * Alternatively, this software may be distributed under the terms of BSD | |
11 | * license. | |
12 | * | |
13 | * See README and COPYING for more details. | |
14 | */ | |
15 | ||
16 | #include "includes.h" | |
17 | ||
18 | #include "common.h" | |
19 | #include "../hostapd/hostapd.h" | |
089757c6 | 20 | #include "../hostapd/config.h" |
0915d02c JM |
21 | #ifdef NEED_MLME |
22 | #include "../hostapd/ieee802_11.h" | |
23 | #endif /* NEED_MLME */ | |
f1a48710 JM |
24 | #include "eap_common/eap_defs.h" |
25 | #include "eap_server/eap_methods.h" | |
26 | #include "eap_common/eap_wsc_common.h" | |
1f1b62a0 JM |
27 | #include "config_ssid.h" |
28 | #include "wpa_supplicant_i.h" | |
2d5b792d JM |
29 | #include "driver_i.h" |
30 | #include "ap.h" | |
f1a48710 JM |
31 | |
32 | ||
2d5b792d JM |
33 | int hostapd_for_each_interface(int (*cb)(struct hostapd_iface *iface, |
34 | void *ctx), void *ctx) | |
f1a48710 JM |
35 | { |
36 | /* TODO */ | |
2d5b792d | 37 | return 0; |
f1a48710 JM |
38 | } |
39 | ||
40 | ||
2d5b792d | 41 | int hostapd_ctrl_iface_init(struct hostapd_data *hapd) |
f1a48710 | 42 | { |
f1a48710 JM |
43 | return 0; |
44 | } | |
45 | ||
46 | ||
2d5b792d | 47 | void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd) |
f1a48710 | 48 | { |
2d5b792d | 49 | } |
f1a48710 | 50 | |
f1a48710 | 51 | |
2d5b792d JM |
52 | struct ap_driver_data { |
53 | struct hostapd_data *hapd; | |
54 | }; | |
f1a48710 | 55 | |
2d5b792d | 56 | |
92f475b4 JM |
57 | static void * ap_driver_init(struct hostapd_data *hapd, |
58 | struct wpa_init_params *params) | |
2d5b792d JM |
59 | { |
60 | struct ap_driver_data *drv; | |
0892aaaf | 61 | struct wpa_supplicant *wpa_s = hapd->iface->owner; |
2d5b792d JM |
62 | |
63 | drv = os_zalloc(sizeof(struct ap_driver_data)); | |
64 | if (drv == NULL) { | |
65 | wpa_printf(MSG_ERROR, "Could not allocate memory for AP " | |
66 | "driver data"); | |
67 | return NULL; | |
68 | } | |
69 | drv->hapd = hapd; | |
0892aaaf | 70 | os_memcpy(hapd->own_addr, wpa_s->own_addr, ETH_ALEN); |
2d5b792d JM |
71 | |
72 | return drv; | |
f1a48710 JM |
73 | } |
74 | ||
75 | ||
2d5b792d | 76 | static void ap_driver_deinit(void *priv) |
f1a48710 | 77 | { |
2d5b792d JM |
78 | struct ap_driver_data *drv = priv; |
79 | ||
80 | os_free(drv); | |
f1a48710 JM |
81 | } |
82 | ||
83 | ||
2d5b792d JM |
84 | static int ap_driver_send_ether(void *priv, const u8 *dst, const u8 *src, |
85 | u16 proto, const u8 *data, size_t data_len) | |
f1a48710 | 86 | { |
0f2b2c19 JM |
87 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); |
88 | return -1; | |
89 | } | |
90 | ||
91 | ||
92 | static int ap_driver_set_key(const char *iface, void *priv, wpa_alg alg, | |
93 | const u8 *addr, int key_idx, int set_tx, | |
94 | const u8 *seq, size_t seq_len, const u8 *key, | |
95 | size_t key_len) | |
96 | { | |
97 | struct ap_driver_data *drv = priv; | |
98 | struct wpa_supplicant *wpa_s = drv->hapd->iface->owner; | |
99 | return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len, | |
100 | key, key_len); | |
101 | } | |
102 | ||
103 | ||
104 | static int ap_driver_get_seqnum(const char *iface, void *priv, const u8 *addr, | |
105 | int idx, u8 *seq) | |
106 | { | |
107 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
108 | return -1; | |
109 | } | |
110 | ||
111 | ||
112 | static int ap_driver_flush(void *priv) | |
113 | { | |
114 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
115 | return -1; | |
116 | } | |
117 | ||
118 | ||
119 | static int ap_driver_read_sta_data(void *priv, | |
120 | struct hostap_sta_driver_data *data, | |
121 | const u8 *addr) | |
122 | { | |
123 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
124 | return -1; | |
125 | } | |
126 | ||
127 | ||
128 | static int ap_driver_sta_set_flags(void *priv, const u8 *addr, int total_flags, | |
129 | int flags_or, int flags_and) | |
130 | { | |
131 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
132 | return -1; | |
133 | } | |
134 | ||
135 | ||
136 | static int ap_driver_sta_deauth(void *priv, const u8 *addr, int reason) | |
137 | { | |
138 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
139 | return -1; | |
140 | } | |
141 | ||
142 | ||
143 | static int ap_driver_sta_disassoc(void *priv, const u8 *addr, int reason) | |
144 | { | |
145 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
146 | return -1; | |
147 | } | |
148 | ||
149 | ||
150 | static int ap_driver_sta_remove(void *priv, const u8 *addr) | |
151 | { | |
152 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
153 | return -1; | |
154 | } | |
155 | ||
156 | ||
157 | static int ap_driver_send_mgmt_frame(void *priv, const void *data, size_t len, | |
158 | int flags) | |
159 | { | |
2c2010ac JM |
160 | struct ap_driver_data *drv = priv; |
161 | struct wpa_supplicant *wpa_s = drv->hapd->iface->owner; | |
162 | return wpa_drv_send_mlme(wpa_s, data, len); | |
0f2b2c19 JM |
163 | } |
164 | ||
165 | ||
166 | static int ap_driver_sta_add(const char *ifname, void *priv, | |
167 | struct hostapd_sta_add_params *params) | |
168 | { | |
169 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
170 | return -1; | |
171 | } | |
172 | ||
173 | ||
174 | static int ap_driver_get_inact_sec(void *priv, const u8 *addr) | |
175 | { | |
176 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
177 | return -1; | |
178 | } | |
179 | ||
180 | ||
181 | static int ap_driver_set_freq(void *priv, struct hostapd_freq_params *freq) | |
182 | { | |
183 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
f1a48710 JM |
184 | return 0; |
185 | } | |
186 | ||
187 | ||
0f2b2c19 | 188 | static int ap_driver_set_beacon(const char *iface, void *priv, |
d2440ba0 JM |
189 | const u8 *head, size_t head_len, |
190 | const u8 *tail, size_t tail_len, | |
191 | int dtim_period) | |
0f2b2c19 | 192 | { |
d2440ba0 JM |
193 | struct ap_driver_data *drv = priv; |
194 | struct wpa_supplicant *wpa_s = drv->hapd->iface->owner; | |
195 | return wpa_drv_set_beacon(wpa_s, head, head_len, tail, tail_len, | |
196 | dtim_period); | |
0f2b2c19 JM |
197 | } |
198 | ||
199 | ||
200 | static int ap_driver_set_beacon_int(void *priv, int value) | |
201 | { | |
d2440ba0 JM |
202 | struct ap_driver_data *drv = priv; |
203 | struct wpa_supplicant *wpa_s = drv->hapd->iface->owner; | |
204 | return wpa_drv_set_beacon_int(wpa_s, value); | |
0f2b2c19 JM |
205 | } |
206 | ||
207 | ||
208 | static int ap_driver_set_cts_protect(void *priv, int value) | |
209 | { | |
210 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
211 | return -1; | |
212 | } | |
213 | ||
214 | ||
215 | static int ap_driver_set_preamble(void *priv, int value) | |
216 | { | |
217 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
218 | return -1; | |
219 | } | |
220 | ||
221 | ||
222 | static int ap_driver_set_short_slot_time(void *priv, int value) | |
223 | { | |
224 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
225 | return -1; | |
226 | } | |
227 | ||
228 | ||
229 | static int ap_driver_set_tx_queue_params(void *priv, int queue, int aifs, | |
230 | int cw_min, int cw_max, | |
231 | int burst_time) | |
232 | { | |
233 | wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__); | |
234 | return -1; | |
235 | } | |
236 | ||
237 | ||
238 | static struct hostapd_hw_modes *ap_driver_get_hw_feature_data(void *priv, | |
239 | u16 *num_modes, | |
240 | u16 *flags) | |
241 | { | |
282d5590 JM |
242 | struct ap_driver_data *drv = priv; |
243 | struct wpa_supplicant *wpa_s = drv->hapd->iface->owner; | |
244 | return wpa_drv_get_hw_feature_data(wpa_s, num_modes, flags); | |
0f2b2c19 JM |
245 | } |
246 | ||
247 | ||
c5121837 | 248 | struct wpa_driver_ops ap_driver_ops = |
f1a48710 | 249 | { |
2d5b792d | 250 | .name = "wpa_supplicant", |
c5121837 JM |
251 | .hapd_init = ap_driver_init, |
252 | .hapd_deinit = ap_driver_deinit, | |
2d5b792d | 253 | .send_ether = ap_driver_send_ether, |
c5121837 | 254 | .hapd_set_key = ap_driver_set_key, |
0f2b2c19 JM |
255 | .get_seqnum = ap_driver_get_seqnum, |
256 | .flush = ap_driver_flush, | |
257 | .read_sta_data = ap_driver_read_sta_data, | |
258 | .sta_set_flags = ap_driver_sta_set_flags, | |
259 | .sta_deauth = ap_driver_sta_deauth, | |
260 | .sta_disassoc = ap_driver_sta_disassoc, | |
261 | .sta_remove = ap_driver_sta_remove, | |
262 | .send_mgmt_frame = ap_driver_send_mgmt_frame, | |
263 | .sta_add = ap_driver_sta_add, | |
264 | .get_inact_sec = ap_driver_get_inact_sec, | |
265 | .set_freq = ap_driver_set_freq, | |
c5121837 JM |
266 | .hapd_set_beacon = ap_driver_set_beacon, |
267 | .hapd_set_beacon_int = ap_driver_set_beacon_int, | |
0f2b2c19 JM |
268 | .set_cts_protect = ap_driver_set_cts_protect, |
269 | .set_preamble = ap_driver_set_preamble, | |
270 | .set_short_slot_time = ap_driver_set_short_slot_time, | |
271 | .set_tx_queue_params = ap_driver_set_tx_queue_params, | |
c3965310 | 272 | .get_hw_feature_data = ap_driver_get_hw_feature_data, |
2d5b792d | 273 | }; |
f1a48710 | 274 | |
f1a48710 | 275 | |
c5121837 | 276 | extern struct wpa_driver_ops *wpa_drivers[]; |
07f117ed JM |
277 | |
278 | static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s, | |
279 | struct wpa_ssid *ssid, | |
280 | struct hostapd_config *conf) | |
281 | { | |
282 | struct hostapd_bss_config *bss = &conf->bss[0]; | |
c5121837 JM |
283 | int j; |
284 | ||
285 | for (j = 0; wpa_drivers[j]; j++) { | |
286 | if (os_strcmp("wpa_supplicant", wpa_drivers[j]->name) == 0) { | |
287 | conf->driver = wpa_drivers[j]; | |
288 | break; | |
289 | } | |
290 | } | |
291 | if (conf->driver == NULL) { | |
292 | wpa_printf(MSG_ERROR, "No AP driver ops found"); | |
293 | return -1; | |
294 | } | |
07f117ed JM |
295 | |
296 | os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface)); | |
297 | ||
298 | if (ssid->frequency == 0) { | |
299 | /* default channel 11 */ | |
300 | conf->hw_mode = HOSTAPD_MODE_IEEE80211G; | |
301 | conf->channel = 11; | |
302 | } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) { | |
303 | conf->hw_mode = HOSTAPD_MODE_IEEE80211G; | |
304 | conf->channel = (ssid->frequency - 2407) / 5; | |
305 | } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) || | |
306 | (ssid->frequency >= 5745 && ssid->frequency <= 5825)) { | |
307 | conf->hw_mode = HOSTAPD_MODE_IEEE80211G; | |
308 | conf->channel = (ssid->frequency - 5000) / 5; | |
309 | } else { | |
310 | wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz", | |
311 | ssid->frequency); | |
312 | return -1; | |
313 | } | |
314 | ||
315 | /* TODO: enable HT if driver supports it; | |
316 | * drop to 11b if driver does not support 11g */ | |
317 | ||
318 | if (ssid->ssid_len == 0) { | |
319 | wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); | |
320 | return -1; | |
321 | } | |
322 | os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len); | |
323 | bss->ssid.ssid[ssid->ssid_len] = '\0'; | |
324 | bss->ssid.ssid_len = ssid->ssid_len; | |
325 | bss->ssid.ssid_set = 1; | |
326 | ||
327 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) | |
328 | bss->wpa = ssid->proto; | |
329 | bss->wpa_key_mgmt = ssid->key_mgmt; | |
330 | bss->wpa_pairwise = ssid->pairwise_cipher; | |
331 | if (ssid->passphrase) { | |
332 | bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase); | |
333 | if (hostapd_setup_wpa_psk(bss)) | |
334 | return -1; | |
335 | } else if (ssid->psk_set) { | |
336 | os_free(bss->ssid.wpa_psk); | |
337 | bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); | |
338 | if (bss->ssid.wpa_psk == NULL) | |
339 | return -1; | |
340 | os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN); | |
341 | bss->ssid.wpa_psk->group = 1; | |
342 | } | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | ||
2d5b792d JM |
348 | int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s, |
349 | struct wpa_ssid *ssid) | |
350 | { | |
351 | struct wpa_driver_associate_params params; | |
352 | struct hostapd_iface *hapd_iface; | |
353 | struct hostapd_config *conf; | |
354 | size_t i; | |
f1a48710 | 355 | |
2d5b792d JM |
356 | if (ssid->ssid == NULL || ssid->ssid_len == 0) { |
357 | wpa_printf(MSG_ERROR, "No SSID configured for AP mode"); | |
358 | return -1; | |
f1a48710 JM |
359 | } |
360 | ||
2d5b792d | 361 | wpa_supplicant_ap_deinit(wpa_s); |
d2440ba0 JM |
362 | |
363 | wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')", | |
364 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
365 | ||
366 | os_memset(¶ms, 0, sizeof(params)); | |
367 | params.ssid = ssid->ssid; | |
368 | params.ssid_len = ssid->ssid_len; | |
369 | params.mode = ssid->mode; | |
370 | params.freq = ssid->frequency; | |
371 | ||
372 | if (wpa_drv_associate(wpa_s, ¶ms) < 0) { | |
373 | wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality"); | |
374 | return -1; | |
375 | } | |
376 | ||
2d5b792d JM |
377 | wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface)); |
378 | if (hapd_iface == NULL) | |
379 | return -1; | |
0f2b2c19 | 380 | hapd_iface->owner = wpa_s; |
1f1b62a0 | 381 | |
2d5b792d JM |
382 | wpa_s->ap_iface->conf = conf = hostapd_config_defaults(); |
383 | if (conf == NULL) { | |
384 | wpa_supplicant_ap_deinit(wpa_s); | |
385 | return -1; | |
386 | } | |
1f1b62a0 | 387 | |
07f117ed JM |
388 | if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) { |
389 | wpa_printf(MSG_ERROR, "Failed to create AP configuration"); | |
390 | wpa_supplicant_ap_deinit(wpa_s); | |
391 | return -1; | |
392 | } | |
393 | ||
2d5b792d JM |
394 | hapd_iface->num_bss = conf->num_bss; |
395 | hapd_iface->bss = os_zalloc(conf->num_bss * | |
396 | sizeof(struct hostapd_data *)); | |
397 | if (hapd_iface->bss == NULL) { | |
398 | wpa_supplicant_ap_deinit(wpa_s); | |
399 | return -1; | |
400 | } | |
1f1b62a0 | 401 | |
2d5b792d JM |
402 | for (i = 0; i < conf->num_bss; i++) { |
403 | hapd_iface->bss[i] = | |
404 | hostapd_alloc_bss_data(hapd_iface, conf, | |
405 | &conf->bss[i]); | |
406 | if (hapd_iface->bss[i] == NULL) { | |
407 | wpa_supplicant_ap_deinit(wpa_s); | |
408 | return -1; | |
409 | } | |
410 | } | |
411 | ||
412 | if (hostapd_setup_interface(wpa_s->ap_iface)) { | |
413 | wpa_printf(MSG_ERROR, "Failed to initialize AP interface"); | |
414 | wpa_supplicant_ap_deinit(wpa_s); | |
415 | return -1; | |
1f1b62a0 JM |
416 | } |
417 | ||
2d5b792d JM |
418 | return 0; |
419 | } | |
420 | ||
421 | ||
422 | void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s) | |
423 | { | |
424 | if (wpa_s->ap_iface == NULL) | |
425 | return; | |
426 | ||
427 | hostapd_interface_deinit(wpa_s->ap_iface); | |
428 | wpa_s->ap_iface = NULL; | |
1f1b62a0 | 429 | } |
0915d02c JM |
430 | |
431 | ||
432 | void ap_tx_status(void *ctx, const u8 *addr, | |
433 | const u8 *buf, size_t len, int ack) | |
434 | { | |
435 | struct wpa_supplicant *wpa_s = ctx; | |
436 | hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack); | |
437 | } | |
438 | ||
439 | ||
440 | void ap_rx_from_unknown_sta(void *ctx, const u8 *addr) | |
441 | { | |
442 | struct wpa_supplicant *wpa_s = ctx; | |
443 | ap_rx_from_unknown_sta(wpa_s->ap_iface->bss[0], addr); | |
444 | } | |
445 | ||
446 | ||
447 | #ifdef NEED_MLME | |
448 | void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype, | |
449 | struct hostapd_frame_info *fi) | |
450 | { | |
451 | struct wpa_supplicant *wpa_s = ctx; | |
452 | ieee802_11_mgmt(wpa_s->ap_iface->bss[0], buf, len, stype, fi); | |
453 | } | |
454 | ||
455 | ||
456 | void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok) | |
457 | { | |
458 | struct wpa_supplicant *wpa_s = ctx; | |
459 | ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok); | |
460 | } | |
461 | #endif /* NEED_MLME */ |