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Commit | Line | Data |
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b5b969e9 JM |
1 | /* |
2 | * hostapd / Callback functions for driver wrappers | |
3 | * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi> | |
4 | * | |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
b5b969e9 JM |
7 | */ |
8 | ||
6226e38d | 9 | #include "utils/includes.h" |
b5b969e9 | 10 | |
6226e38d | 11 | #include "utils/common.h" |
b5b969e9 | 12 | #include "radius/radius.h" |
6e6e8c31 | 13 | #include "drivers/driver.h" |
81f4f619 | 14 | #include "common/ieee802_11_defs.h" |
c41a1095 | 15 | #include "common/ieee802_11_common.h" |
bbb921da | 16 | #include "crypto/random.h" |
ef796391 | 17 | #include "p2p/p2p.h" |
54f489be | 18 | #include "wps/wps.h" |
6226e38d JM |
19 | #include "hostapd.h" |
20 | #include "ieee802_11.h" | |
21 | #include "sta_info.h" | |
22 | #include "accounting.h" | |
23 | #include "tkip_countermeasures.h" | |
6226e38d JM |
24 | #include "ieee802_1x.h" |
25 | #include "wpa_auth.h" | |
6226e38d | 26 | #include "wps_hostapd.h" |
51e2a27a | 27 | #include "ap_drv_ops.h" |
8b06c1ed | 28 | #include "ap_config.h" |
1b487b8b | 29 | #include "hw_features.h" |
b5b969e9 JM |
30 | |
31 | ||
b5b969e9 | 32 | int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, |
2bb20281 | 33 | const u8 *req_ies, size_t req_ies_len, int reassoc) |
b5b969e9 JM |
34 | { |
35 | struct sta_info *sta; | |
36 | int new_assoc, res; | |
c41a1095 | 37 | struct ieee802_11_elems elems; |
2bb20281 JM |
38 | const u8 *ie; |
39 | size_t ielen; | |
88b32a99 SP |
40 | #ifdef CONFIG_IEEE80211R |
41 | u8 buf[sizeof(struct ieee80211_mgmt) + 1024]; | |
42 | u8 *p = buf; | |
43 | #endif /* CONFIG_IEEE80211R */ | |
08a74e6a | 44 | u16 reason = WLAN_REASON_UNSPECIFIED; |
88b32a99 | 45 | u16 status = WLAN_STATUS_SUCCESS; |
b5b969e9 | 46 | |
68532a9c JM |
47 | if (addr == NULL) { |
48 | /* | |
49 | * This could potentially happen with unexpected event from the | |
50 | * driver wrapper. This was seen at least in one case where the | |
51 | * driver ended up being set to station mode while hostapd was | |
52 | * running, so better make sure we stop processing such an | |
53 | * event here. | |
54 | */ | |
55 | wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with " | |
56 | "no address"); | |
57 | return -1; | |
58 | } | |
bbb921da | 59 | random_add_randomness(addr, ETH_ALEN); |
68532a9c | 60 | |
b5b969e9 JM |
61 | hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, |
62 | HOSTAPD_LEVEL_INFO, "associated"); | |
63 | ||
2bb20281 | 64 | ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0); |
c41a1095 JM |
65 | if (elems.wps_ie) { |
66 | ie = elems.wps_ie - 2; | |
67 | ielen = elems.wps_ie_len + 2; | |
68 | wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq"); | |
69 | } else if (elems.rsn_ie) { | |
70 | ie = elems.rsn_ie - 2; | |
71 | ielen = elems.rsn_ie_len + 2; | |
72 | wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq"); | |
73 | } else if (elems.wpa_ie) { | |
74 | ie = elems.wpa_ie - 2; | |
75 | ielen = elems.wpa_ie_len + 2; | |
76 | wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq"); | |
77 | } else { | |
78 | ie = NULL; | |
79 | ielen = 0; | |
80 | wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in " | |
81 | "(Re)AssocReq"); | |
82 | } | |
83 | ||
b5b969e9 JM |
84 | sta = ap_get_sta(hapd, addr); |
85 | if (sta) { | |
86 | accounting_sta_stop(hapd, sta); | |
c72bd6d4 JM |
87 | |
88 | /* | |
89 | * Make sure that the previously registered inactivity timer | |
90 | * will not remove the STA immediately. | |
91 | */ | |
92 | sta->timeout_next = STA_NULLFUNC; | |
b5b969e9 JM |
93 | } else { |
94 | sta = ap_sta_add(hapd, addr); | |
8bd0fc0e JM |
95 | if (sta == NULL) { |
96 | hostapd_drv_sta_disassoc(hapd, addr, | |
97 | WLAN_REASON_DISASSOC_AP_BUSY); | |
b5b969e9 | 98 | return -1; |
8bd0fc0e | 99 | } |
b5b969e9 | 100 | } |
17f6b900 | 101 | sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2); |
b5b969e9 | 102 | |
b305c684 JM |
103 | #ifdef CONFIG_P2P |
104 | if (elems.p2p) { | |
105 | wpabuf_free(sta->p2p_ie); | |
2bb20281 | 106 | sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, |
b305c684 JM |
107 | P2P_IE_VENDOR_TYPE); |
108 | } | |
109 | #endif /* CONFIG_P2P */ | |
110 | ||
b5b969e9 JM |
111 | if (hapd->conf->wpa) { |
112 | if (ie == NULL || ielen == 0) { | |
633d4469 | 113 | #ifdef CONFIG_WPS |
b5b969e9 JM |
114 | if (hapd->conf->wps_state) { |
115 | wpa_printf(MSG_DEBUG, "STA did not include " | |
116 | "WPA/RSN IE in (Re)Association " | |
117 | "Request - possible WPS use"); | |
118 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
119 | goto skip_wpa_check; | |
120 | } | |
633d4469 | 121 | #endif /* CONFIG_WPS */ |
b5b969e9 JM |
122 | |
123 | wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA"); | |
124 | return -1; | |
125 | } | |
633d4469 | 126 | #ifdef CONFIG_WPS |
b5b969e9 JM |
127 | if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 && |
128 | os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) { | |
17f6b900 | 129 | struct wpabuf *wps; |
b5b969e9 | 130 | sta->flags |= WLAN_STA_WPS; |
17f6b900 JM |
131 | wps = ieee802_11_vendor_ie_concat(ie, ielen, |
132 | WPS_IE_VENDOR_TYPE); | |
133 | if (wps) { | |
134 | if (wps_is_20(wps)) { | |
135 | wpa_printf(MSG_DEBUG, "WPS: STA " | |
136 | "supports WPS 2.0"); | |
137 | sta->flags |= WLAN_STA_WPS2; | |
138 | } | |
139 | wpabuf_free(wps); | |
140 | } | |
b5b969e9 JM |
141 | goto skip_wpa_check; |
142 | } | |
633d4469 | 143 | #endif /* CONFIG_WPS */ |
b5b969e9 JM |
144 | |
145 | if (sta->wpa_sm == NULL) | |
146 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
147 | sta->addr); | |
148 | if (sta->wpa_sm == NULL) { | |
149 | wpa_printf(MSG_ERROR, "Failed to initialize WPA state " | |
150 | "machine"); | |
151 | return -1; | |
152 | } | |
153 | res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm, | |
88b32a99 SP |
154 | ie, ielen, |
155 | elems.mdie, elems.mdie_len); | |
b5b969e9 JM |
156 | if (res != WPA_IE_OK) { |
157 | wpa_printf(MSG_DEBUG, "WPA/RSN information element " | |
158 | "rejected? (res %u)", res); | |
159 | wpa_hexdump(MSG_DEBUG, "IE", ie, ielen); | |
88b32a99 | 160 | if (res == WPA_INVALID_GROUP) { |
08a74e6a | 161 | reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; |
88b32a99 SP |
162 | status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; |
163 | } else if (res == WPA_INVALID_PAIRWISE) { | |
08a74e6a | 164 | reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID; |
88b32a99 SP |
165 | status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; |
166 | } else if (res == WPA_INVALID_AKMP) { | |
08a74e6a | 167 | reason = WLAN_REASON_AKMP_NOT_VALID; |
88b32a99 SP |
168 | status = WLAN_STATUS_AKMP_NOT_VALID; |
169 | } | |
355d36a7 | 170 | #ifdef CONFIG_IEEE80211W |
88b32a99 | 171 | else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) { |
08a74e6a | 172 | reason = WLAN_REASON_INVALID_IE; |
88b32a99 SP |
173 | status = WLAN_STATUS_INVALID_IE; |
174 | } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) { | |
08a74e6a | 175 | reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID; |
88b32a99 SP |
176 | status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID; |
177 | } | |
355d36a7 | 178 | #endif /* CONFIG_IEEE80211W */ |
88b32a99 | 179 | else { |
08a74e6a | 180 | reason = WLAN_REASON_INVALID_IE; |
88b32a99 SP |
181 | status = WLAN_STATUS_INVALID_IE; |
182 | } | |
08a74e6a | 183 | goto fail; |
b5b969e9 | 184 | } |
88b32a99 SP |
185 | #ifdef CONFIG_IEEE80211R |
186 | if (sta->auth_alg == WLAN_AUTH_FT) { | |
187 | status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies, | |
188 | req_ies_len); | |
189 | if (status != WLAN_STATUS_SUCCESS) { | |
190 | if (status == WLAN_STATUS_INVALID_PMKID) | |
191 | reason = WLAN_REASON_INVALID_IE; | |
192 | if (status == WLAN_STATUS_INVALID_MDIE) | |
193 | reason = WLAN_REASON_INVALID_IE; | |
194 | if (status == WLAN_STATUS_INVALID_FTIE) | |
195 | reason = WLAN_REASON_INVALID_IE; | |
196 | goto fail; | |
197 | } | |
198 | } | |
199 | #endif /* CONFIG_IEEE80211R */ | |
a9aca28b | 200 | } else if (hapd->conf->wps_state) { |
633d4469 | 201 | #ifdef CONFIG_WPS |
17f6b900 | 202 | struct wpabuf *wps; |
2bb20281 JM |
203 | if (req_ies) |
204 | wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len, | |
fa15d405 JM |
205 | WPS_IE_VENDOR_TYPE); |
206 | else | |
207 | wps = NULL; | |
54f489be | 208 | #ifdef CONFIG_WPS_STRICT |
fa15d405 | 209 | if (wps && wps_validate_assoc_req(wps) < 0) { |
08a74e6a | 210 | reason = WLAN_REASON_INVALID_IE; |
88b32a99 | 211 | status = WLAN_STATUS_INVALID_IE; |
fa15d405 | 212 | wpabuf_free(wps); |
08a74e6a | 213 | goto fail; |
54f489be | 214 | } |
54f489be | 215 | #endif /* CONFIG_WPS_STRICT */ |
fa15d405 | 216 | if (wps) { |
a9aca28b | 217 | sta->flags |= WLAN_STA_WPS; |
fa15d405 | 218 | if (wps_is_20(wps)) { |
17f6b900 JM |
219 | wpa_printf(MSG_DEBUG, "WPS: STA supports " |
220 | "WPS 2.0"); | |
221 | sta->flags |= WLAN_STA_WPS2; | |
222 | } | |
a9aca28b JM |
223 | } else |
224 | sta->flags |= WLAN_STA_MAYBE_WPS; | |
17f6b900 | 225 | wpabuf_free(wps); |
633d4469 | 226 | #endif /* CONFIG_WPS */ |
b5b969e9 | 227 | } |
633d4469 | 228 | #ifdef CONFIG_WPS |
b5b969e9 | 229 | skip_wpa_check: |
633d4469 | 230 | #endif /* CONFIG_WPS */ |
b5b969e9 | 231 | |
88b32a99 SP |
232 | #ifdef CONFIG_IEEE80211R |
233 | p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf), | |
234 | sta->auth_alg, req_ies, req_ies_len); | |
235 | ||
236 | hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); | |
237 | #else /* CONFIG_IEEE80211R */ | |
238 | /* Keep compiler silent about unused variables */ | |
239 | if (status) { | |
240 | } | |
241 | #endif /* CONFIG_IEEE80211R */ | |
242 | ||
b5b969e9 JM |
243 | new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0; |
244 | sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; | |
88b32a99 SP |
245 | |
246 | if (reassoc && (sta->auth_alg == WLAN_AUTH_FT)) | |
247 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT); | |
248 | else | |
249 | wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC); | |
b5b969e9 JM |
250 | |
251 | hostapd_new_assoc_sta(hapd, sta, !new_assoc); | |
252 | ||
253 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 1); | |
254 | ||
ef796391 | 255 | #ifdef CONFIG_P2P |
99c01af9 JM |
256 | if (req_ies) { |
257 | p2p_group_notif_assoc(hapd->p2p_group, sta->addr, | |
258 | req_ies, req_ies_len); | |
259 | } | |
ef796391 JM |
260 | #endif /* CONFIG_P2P */ |
261 | ||
b5b969e9 | 262 | return 0; |
08a74e6a JM |
263 | |
264 | fail: | |
88b32a99 SP |
265 | #ifdef CONFIG_IEEE80211R |
266 | hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf); | |
267 | #endif /* CONFIG_IEEE80211R */ | |
08a74e6a JM |
268 | hostapd_drv_sta_disassoc(hapd, sta->addr, reason); |
269 | ap_free_sta(hapd, sta); | |
270 | return -1; | |
b5b969e9 JM |
271 | } |
272 | ||
273 | ||
274 | void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr) | |
275 | { | |
276 | struct sta_info *sta; | |
277 | ||
83e843e8 JM |
278 | if (addr == NULL) { |
279 | /* | |
280 | * This could potentially happen with unexpected event from the | |
281 | * driver wrapper. This was seen at least in one case where the | |
282 | * driver ended up reporting a station mode event while hostapd | |
283 | * was running, so better make sure we stop processing such an | |
284 | * event here. | |
285 | */ | |
286 | wpa_printf(MSG_DEBUG, "hostapd_notif_disassoc: Skip event " | |
287 | "with no address"); | |
1f4c7b6b | 288 | return; |
83e843e8 JM |
289 | } |
290 | ||
b5b969e9 JM |
291 | hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, |
292 | HOSTAPD_LEVEL_INFO, "disassociated"); | |
293 | ||
294 | sta = ap_get_sta(hapd, addr); | |
295 | if (sta == NULL) { | |
296 | wpa_printf(MSG_DEBUG, "Disassociation notification for " | |
297 | "unknown STA " MACSTR, MAC2STR(addr)); | |
298 | return; | |
299 | } | |
300 | ||
ae055af4 | 301 | ap_sta_set_authorized(hapd, sta, 0); |
b5b969e9 JM |
302 | sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC); |
303 | wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC); | |
304 | sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST; | |
305 | ieee802_1x_notify_port_enabled(sta->eapol_sm, 0); | |
306 | ap_free_sta(hapd, sta); | |
307 | } | |
308 | ||
309 | ||
0d7e5a3a JB |
310 | void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr) |
311 | { | |
312 | struct sta_info *sta = ap_get_sta(hapd, addr); | |
313 | ||
314 | if (!sta || !hapd->conf->disassoc_low_ack) | |
315 | return; | |
316 | ||
317 | hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, | |
318 | HOSTAPD_LEVEL_INFO, "disconnected due to excessive " | |
319 | "missing ACKs"); | |
320 | hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK); | |
321 | if (sta) | |
322 | ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK); | |
323 | } | |
324 | ||
325 | ||
1b487b8b TP |
326 | void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, |
327 | int offset) | |
328 | { | |
c7803a02 | 329 | #ifdef NEED_AP_MLME |
1b487b8b TP |
330 | int channel; |
331 | ||
332 | hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211, | |
333 | HOSTAPD_LEVEL_INFO, "driver had channel switch: " | |
334 | "freq=%d, ht=%d, offset=%d", freq, ht, offset); | |
335 | ||
336 | hapd->iface->freq = freq; | |
337 | ||
338 | channel = hostapd_hw_get_channel(hapd, freq); | |
339 | if (!channel) { | |
340 | hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211, | |
341 | HOSTAPD_LEVEL_WARNING, "driver switched to " | |
342 | "bad channel!"); | |
343 | return; | |
344 | } | |
345 | ||
346 | hapd->iconf->channel = channel; | |
347 | hapd->iconf->ieee80211n = ht; | |
348 | hapd->iconf->secondary_channel = offset; | |
c7803a02 | 349 | #endif /* NEED_AP_MLME */ |
1b487b8b TP |
350 | } |
351 | ||
352 | ||
04a85e44 | 353 | int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, |
baf513d6 JB |
354 | const u8 *bssid, const u8 *ie, size_t ie_len, |
355 | int ssi_signal) | |
e67b55fb JM |
356 | { |
357 | size_t i; | |
358 | int ret = 0; | |
359 | ||
b211f3eb JM |
360 | if (sa == NULL || ie == NULL) |
361 | return -1; | |
362 | ||
363 | random_add_randomness(sa, ETH_ALEN); | |
e67b55fb JM |
364 | for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) { |
365 | if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx, | |
baf513d6 JB |
366 | sa, da, bssid, ie, ie_len, |
367 | ssi_signal) > 0) { | |
e67b55fb JM |
368 | ret = 1; |
369 | break; | |
370 | } | |
371 | } | |
372 | return ret; | |
373 | } | |
374 | ||
375 | ||
88b32a99 SP |
376 | #ifdef CONFIG_IEEE80211R |
377 | static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst, | |
378 | const u8 *bssid, | |
379 | u16 auth_transaction, u16 status, | |
380 | const u8 *ies, size_t ies_len) | |
381 | { | |
382 | struct hostapd_data *hapd = ctx; | |
383 | struct sta_info *sta; | |
384 | ||
385 | sta = ap_get_sta(hapd, dst); | |
386 | if (sta == NULL) | |
387 | return; | |
388 | ||
389 | hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211, | |
390 | HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)"); | |
391 | sta->flags |= WLAN_STA_AUTH; | |
392 | ||
393 | hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len); | |
394 | } | |
395 | #endif /* CONFIG_IEEE80211R */ | |
396 | ||
397 | ||
f8b1f695 JM |
398 | #ifdef HOSTAPD |
399 | ||
88b32a99 SP |
400 | static void hostapd_notif_auth(struct hostapd_data *hapd, |
401 | struct auth_info *rx_auth) | |
402 | { | |
403 | struct sta_info *sta; | |
404 | u16 status = WLAN_STATUS_SUCCESS; | |
405 | u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN]; | |
406 | size_t resp_ies_len = 0; | |
407 | ||
408 | sta = ap_get_sta(hapd, rx_auth->peer); | |
409 | if (!sta) { | |
410 | sta = ap_sta_add(hapd, rx_auth->peer); | |
411 | if (sta == NULL) { | |
412 | status = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
413 | goto fail; | |
414 | } | |
415 | } | |
416 | sta->flags &= ~WLAN_STA_PREAUTH; | |
417 | ieee802_1x_notify_pre_auth(sta->eapol_sm, 0); | |
418 | #ifdef CONFIG_IEEE80211R | |
419 | if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) { | |
420 | sta->auth_alg = WLAN_AUTH_FT; | |
421 | if (sta->wpa_sm == NULL) | |
422 | sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, | |
423 | sta->addr); | |
424 | if (sta->wpa_sm == NULL) { | |
425 | wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA " | |
426 | "state machine"); | |
427 | status = WLAN_STATUS_UNSPECIFIED_FAILURE; | |
428 | goto fail; | |
429 | } | |
430 | wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid, | |
431 | rx_auth->auth_transaction, rx_auth->ies, | |
432 | rx_auth->ies_len, | |
433 | hostapd_notify_auth_ft_finish, hapd); | |
434 | return; | |
435 | } | |
436 | #endif /* CONFIG_IEEE80211R */ | |
437 | fail: | |
438 | hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1, | |
439 | status, resp_ies, resp_ies_len); | |
440 | } | |
441 | ||
442 | ||
443 | static void hostapd_action_rx(struct hostapd_data *hapd, | |
444 | struct rx_action *action) | |
445 | { | |
446 | struct sta_info *sta; | |
447 | ||
448 | sta = ap_get_sta(hapd, action->sa); | |
449 | if (sta == NULL) { | |
450 | wpa_printf(MSG_DEBUG, "%s: station not found", __func__); | |
451 | return; | |
452 | } | |
453 | #ifdef CONFIG_IEEE80211R | |
454 | if (action->category == WLAN_ACTION_FT) { | |
455 | wpa_printf(MSG_DEBUG, "%s: FT_ACTION length %d", | |
456 | __func__, (int) action->len); | |
457 | wpa_ft_action_rx(sta->wpa_sm, action->data, action->len); | |
458 | } | |
459 | #endif /* CONFIG_IEEE80211R */ | |
460 | } | |
461 | ||
462 | ||
fe6bdb77 | 463 | #ifdef NEED_AP_MLME |
f8b1f695 | 464 | |
f8b1f695 JM |
465 | #define HAPD_BROADCAST ((struct hostapd_data *) -1) |
466 | ||
467 | static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface, | |
468 | const u8 *bssid) | |
469 | { | |
470 | size_t i; | |
471 | ||
472 | if (bssid == NULL) | |
473 | return NULL; | |
474 | if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff && | |
475 | bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff) | |
476 | return HAPD_BROADCAST; | |
477 | ||
478 | for (i = 0; i < iface->num_bss; i++) { | |
479 | if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) | |
480 | return iface->bss[i]; | |
481 | } | |
482 | ||
483 | return NULL; | |
484 | } | |
485 | ||
486 | ||
487 | static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd, | |
9b90955e JB |
488 | const u8 *bssid, const u8 *addr, |
489 | int wds) | |
f8b1f695 | 490 | { |
9b90955e | 491 | hapd = get_hapd_bssid(hapd->iface, bssid); |
f8b1f695 JM |
492 | if (hapd == NULL || hapd == HAPD_BROADCAST) |
493 | return; | |
494 | ||
9b90955e | 495 | ieee802_11_rx_from_unknown(hapd, addr, wds); |
f8b1f695 JM |
496 | } |
497 | ||
498 | ||
2a8b7416 | 499 | static void hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt) |
b5b969e9 | 500 | { |
4b9841d3 | 501 | struct hostapd_iface *iface = hapd->iface; |
b57e086c | 502 | const struct ieee80211_hdr *hdr; |
4b9841d3 | 503 | const u8 *bssid; |
2a8b7416 | 504 | struct hostapd_frame_info fi; |
4b9841d3 | 505 | |
2a8b7416 JM |
506 | hdr = (const struct ieee80211_hdr *) rx_mgmt->frame; |
507 | bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len); | |
4b9841d3 JM |
508 | if (bssid == NULL) |
509 | return; | |
510 | ||
511 | hapd = get_hapd_bssid(iface, bssid); | |
512 | if (hapd == NULL) { | |
513 | u16 fc; | |
514 | fc = le_to_host16(hdr->frame_control); | |
515 | ||
516 | /* | |
517 | * Drop frames to unknown BSSIDs except for Beacon frames which | |
518 | * could be used to update neighbor information. | |
519 | */ | |
520 | if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && | |
521 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) | |
522 | hapd = iface->bss[0]; | |
523 | else | |
524 | return; | |
525 | } | |
526 | ||
2a8b7416 JM |
527 | os_memset(&fi, 0, sizeof(fi)); |
528 | fi.datarate = rx_mgmt->datarate; | |
529 | fi.ssi_signal = rx_mgmt->ssi_signal; | |
530 | ||
4b9841d3 JM |
531 | if (hapd == HAPD_BROADCAST) { |
532 | size_t i; | |
533 | for (i = 0; i < iface->num_bss; i++) | |
2a8b7416 JM |
534 | ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame, |
535 | rx_mgmt->frame_len, &fi); | |
4b9841d3 | 536 | } else |
2a8b7416 | 537 | ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len, &fi); |
bbb921da JM |
538 | |
539 | random_add_randomness(&fi, sizeof(fi)); | |
b5b969e9 JM |
540 | } |
541 | ||
542 | ||
9e2704c3 JM |
543 | static void hostapd_rx_action(struct hostapd_data *hapd, |
544 | struct rx_action *rx_action) | |
545 | { | |
546 | struct rx_mgmt rx_mgmt; | |
547 | u8 *buf; | |
548 | struct ieee80211_hdr *hdr; | |
549 | ||
550 | wpa_printf(MSG_DEBUG, "EVENT_RX_ACTION DA=" MACSTR " SA=" MACSTR | |
551 | " BSSID=" MACSTR " category=%u", | |
552 | MAC2STR(rx_action->da), MAC2STR(rx_action->sa), | |
553 | MAC2STR(rx_action->bssid), rx_action->category); | |
554 | wpa_hexdump(MSG_MSGDUMP, "Received action frame contents", | |
555 | rx_action->data, rx_action->len); | |
556 | ||
557 | buf = os_zalloc(24 + 1 + rx_action->len); | |
558 | if (buf == NULL) | |
559 | return; | |
560 | hdr = (struct ieee80211_hdr *) buf; | |
561 | hdr->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT, | |
562 | WLAN_FC_STYPE_ACTION); | |
563 | if (rx_action->category == WLAN_ACTION_SA_QUERY) { | |
564 | /* | |
565 | * Assume frame was protected; it would have been dropped if | |
566 | * not. | |
567 | */ | |
568 | hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP); | |
569 | } | |
570 | os_memcpy(hdr->addr1, rx_action->da, ETH_ALEN); | |
571 | os_memcpy(hdr->addr2, rx_action->sa, ETH_ALEN); | |
572 | os_memcpy(hdr->addr3, rx_action->bssid, ETH_ALEN); | |
573 | buf[24] = rx_action->category; | |
574 | os_memcpy(buf + 24 + 1, rx_action->data, rx_action->len); | |
575 | os_memset(&rx_mgmt, 0, sizeof(rx_mgmt)); | |
576 | rx_mgmt.frame = buf; | |
577 | rx_mgmt.frame_len = 24 + 1 + rx_action->len; | |
578 | hostapd_mgmt_rx(hapd, &rx_mgmt); | |
579 | os_free(buf); | |
580 | } | |
581 | ||
582 | ||
f8b1f695 JM |
583 | static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf, |
584 | size_t len, u16 stype, int ok) | |
b5b969e9 | 585 | { |
4b9841d3 JM |
586 | struct ieee80211_hdr *hdr; |
587 | hdr = (struct ieee80211_hdr *) buf; | |
588 | hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len)); | |
589 | if (hapd == NULL || hapd == HAPD_BROADCAST) | |
590 | return; | |
b5b969e9 JM |
591 | ieee802_11_mgmt_cb(hapd, buf, len, stype, ok); |
592 | } | |
f82ef4d8 | 593 | |
f8b1f695 | 594 | #endif /* NEED_AP_MLME */ |
ad1e68e6 JM |
595 | |
596 | ||
a8e0505b JM |
597 | static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr) |
598 | { | |
599 | struct sta_info *sta = ap_get_sta(hapd, addr); | |
600 | if (sta) | |
601 | return 0; | |
602 | ||
603 | wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR | |
604 | " - adding a new STA", MAC2STR(addr)); | |
605 | sta = ap_sta_add(hapd, addr); | |
606 | if (sta) { | |
607 | hostapd_new_assoc_sta(hapd, sta, 0); | |
608 | } else { | |
609 | wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR, | |
610 | MAC2STR(addr)); | |
611 | return -1; | |
612 | } | |
613 | ||
614 | return 0; | |
615 | } | |
616 | ||
617 | ||
618 | static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src, | |
619 | const u8 *data, size_t data_len) | |
620 | { | |
621 | struct hostapd_iface *iface = hapd->iface; | |
622 | size_t j; | |
623 | ||
624 | for (j = 0; j < iface->num_bss; j++) { | |
625 | if (ap_get_sta(iface->bss[j], src)) { | |
626 | hapd = iface->bss[j]; | |
627 | break; | |
628 | } | |
629 | } | |
630 | ||
631 | ieee802_1x_receive(hapd, src, data, data_len); | |
632 | } | |
633 | ||
634 | ||
9646a8ab | 635 | void wpa_supplicant_event(void *ctx, enum wpa_event_type event, |
ad1e68e6 JM |
636 | union wpa_event_data *data) |
637 | { | |
638 | struct hostapd_data *hapd = ctx; | |
74781dfc JM |
639 | #ifndef CONFIG_NO_STDOUT_DEBUG |
640 | int level = MSG_DEBUG; | |
ad1e68e6 | 641 | |
74781dfc JM |
642 | if (event == EVENT_RX_MGMT && data && data->rx_mgmt.frame && |
643 | data->rx_mgmt.frame_len >= 24) { | |
644 | const struct ieee80211_hdr *hdr; | |
645 | u16 fc; | |
646 | hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; | |
647 | fc = le_to_host16(hdr->frame_control); | |
648 | if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && | |
649 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) | |
650 | level = MSG_EXCESSIVE; | |
651 | } | |
652 | ||
653 | wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received", | |
e26cd1a1 | 654 | event_to_string(event), event); |
74781dfc | 655 | #endif /* CONFIG_NO_STDOUT_DEBUG */ |
e26cd1a1 | 656 | |
ad1e68e6 JM |
657 | switch (event) { |
658 | case EVENT_MICHAEL_MIC_FAILURE: | |
659 | michael_mic_failure(hapd, data->michael_mic_failure.src, 1); | |
660 | break; | |
661 | case EVENT_SCAN_RESULTS: | |
662 | if (hapd->iface->scan_cb) | |
663 | hapd->iface->scan_cb(hapd->iface); | |
664 | break; | |
08fd8c15 | 665 | #ifdef CONFIG_IEEE80211R |
f2dab64e | 666 | case EVENT_FT_RRB_RX: |
08fd8c15 JM |
667 | wpa_ft_rrb_rx(hapd->wpa_auth, data->ft_rrb_rx.src, |
668 | data->ft_rrb_rx.data, data->ft_rrb_rx.data_len); | |
669 | break; | |
670 | #endif /* CONFIG_IEEE80211R */ | |
fcf0f87d | 671 | case EVENT_WPS_BUTTON_PUSHED: |
d601247c | 672 | hostapd_wps_button_pushed(hapd, NULL); |
fcf0f87d | 673 | break; |
f8b1f695 JM |
674 | #ifdef NEED_AP_MLME |
675 | case EVENT_TX_STATUS: | |
676 | switch (data->tx_status.type) { | |
677 | case WLAN_FC_TYPE_MGMT: | |
678 | hostapd_mgmt_tx_cb(hapd, data->tx_status.data, | |
679 | data->tx_status.data_len, | |
680 | data->tx_status.stype, | |
681 | data->tx_status.ack); | |
682 | break; | |
683 | case WLAN_FC_TYPE_DATA: | |
684 | hostapd_tx_status(hapd, data->tx_status.dst, | |
685 | data->tx_status.data, | |
686 | data->tx_status.data_len, | |
687 | data->tx_status.ack); | |
688 | break; | |
689 | } | |
690 | break; | |
dd840f79 JB |
691 | case EVENT_EAPOL_TX_STATUS: |
692 | hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst, | |
693 | data->eapol_tx_status.data, | |
694 | data->eapol_tx_status.data_len, | |
695 | data->eapol_tx_status.ack); | |
696 | break; | |
bcf24348 JB |
697 | case EVENT_DRIVER_CLIENT_POLL_OK: |
698 | hostapd_client_poll_ok(hapd, data->client_poll.addr); | |
699 | break; | |
f8b1f695 | 700 | case EVENT_RX_FROM_UNKNOWN: |
9b90955e JB |
701 | hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid, |
702 | data->rx_from_unknown.addr, | |
703 | data->rx_from_unknown.wds); | |
f8b1f695 JM |
704 | break; |
705 | case EVENT_RX_MGMT: | |
2a8b7416 | 706 | hostapd_mgmt_rx(hapd, &data->rx_mgmt); |
f8b1f695 JM |
707 | break; |
708 | #endif /* NEED_AP_MLME */ | |
a0e0d3bb | 709 | case EVENT_RX_PROBE_REQ: |
b211f3eb JM |
710 | if (data->rx_probe_req.sa == NULL || |
711 | data->rx_probe_req.ie == NULL) | |
712 | break; | |
a0e0d3bb | 713 | hostapd_probe_req_rx(hapd, data->rx_probe_req.sa, |
04a85e44 JM |
714 | data->rx_probe_req.da, |
715 | data->rx_probe_req.bssid, | |
a0e0d3bb | 716 | data->rx_probe_req.ie, |
baf513d6 JB |
717 | data->rx_probe_req.ie_len, |
718 | data->rx_probe_req.ssi_signal); | |
a0e0d3bb | 719 | break; |
a70a5d6d | 720 | case EVENT_NEW_STA: |
a8e0505b JM |
721 | hostapd_event_new_sta(hapd, data->new_sta.addr); |
722 | break; | |
723 | case EVENT_EAPOL_RX: | |
724 | hostapd_event_eapol_rx(hapd, data->eapol_rx.src, | |
725 | data->eapol_rx.data, | |
726 | data->eapol_rx.data_len); | |
727 | break; | |
1d041bec JM |
728 | case EVENT_ASSOC: |
729 | hostapd_notif_assoc(hapd, data->assoc_info.addr, | |
730 | data->assoc_info.req_ies, | |
39b08b5f SP |
731 | data->assoc_info.req_ies_len, |
732 | data->assoc_info.reassoc); | |
1d041bec JM |
733 | break; |
734 | case EVENT_DISASSOC: | |
735 | if (data) | |
736 | hostapd_notif_disassoc(hapd, data->disassoc_info.addr); | |
737 | break; | |
738 | case EVENT_DEAUTH: | |
739 | if (data) | |
740 | hostapd_notif_disassoc(hapd, data->deauth_info.addr); | |
741 | break; | |
0d7e5a3a JB |
742 | case EVENT_STATION_LOW_ACK: |
743 | if (!data) | |
744 | break; | |
745 | hostapd_event_sta_low_ack(hapd, data->low_ack.addr); | |
746 | break; | |
9e2704c3 JM |
747 | case EVENT_RX_ACTION: |
748 | if (data->rx_action.da == NULL || data->rx_action.sa == NULL || | |
749 | data->rx_action.bssid == NULL) | |
750 | break; | |
88b32a99 | 751 | #ifdef NEED_AP_MLME |
9e2704c3 | 752 | hostapd_rx_action(hapd, &data->rx_action); |
7cc7307d | 753 | #endif /* NEED_AP_MLME */ |
88b32a99 SP |
754 | hostapd_action_rx(hapd, &data->rx_action); |
755 | break; | |
756 | case EVENT_AUTH: | |
757 | hostapd_notif_auth(hapd, &data->auth); | |
758 | break; | |
1b487b8b TP |
759 | case EVENT_CH_SWITCH: |
760 | if (!data) | |
761 | break; | |
762 | hostapd_event_ch_switch(hapd, data->ch_switch.freq, | |
763 | data->ch_switch.ht_enabled, | |
764 | data->ch_switch.ch_offset); | |
765 | break; | |
ad1e68e6 JM |
766 | default: |
767 | wpa_printf(MSG_DEBUG, "Unknown event %d", event); | |
768 | break; | |
769 | } | |
770 | } | |
f8b1f695 JM |
771 | |
772 | #endif /* HOSTAPD */ |