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Commit | Line | Data |
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be27e185 JM |
1 | /* |
2 | * wpa_supplicant - DPP | |
3 | * Copyright (c) 2017, Qualcomm Atheros, Inc. | |
4 | * | |
5 | * This software may be distributed under the terms of the BSD license. | |
6 | * See README for more details. | |
7 | */ | |
8 | ||
9 | #include "utils/includes.h" | |
10 | ||
11 | #include "utils/common.h" | |
30d27b04 | 12 | #include "utils/eloop.h" |
be27e185 | 13 | #include "common/dpp.h" |
461d39af JM |
14 | #include "common/gas.h" |
15 | #include "common/gas_server.h" | |
a0d5c56f JM |
16 | #include "rsn_supp/wpa.h" |
17 | #include "rsn_supp/pmksa_cache.h" | |
be27e185 | 18 | #include "wpa_supplicant_i.h" |
a0d5c56f | 19 | #include "config.h" |
30d27b04 JM |
20 | #include "driver_i.h" |
21 | #include "offchannel.h" | |
461d39af | 22 | #include "gas_query.h" |
a0d5c56f JM |
23 | #include "bss.h" |
24 | #include "scan.h" | |
8528994e | 25 | #include "notify.h" |
be27e185 JM |
26 | #include "dpp_supplicant.h" |
27 | ||
28 | ||
30d27b04 JM |
29 | static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s, |
30 | unsigned int freq); | |
461d39af JM |
31 | static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx); |
32 | static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator); | |
30d27b04 JM |
33 | static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s, |
34 | unsigned int freq, const u8 *dst, | |
35 | const u8 *src, const u8 *bssid, | |
36 | const u8 *data, size_t data_len, | |
37 | enum offchannel_send_action_result result); | |
38 | ||
39 | static const u8 broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
40 | ||
85fd8263 JM |
41 | /* Use a hardcoded Transaction ID 1 in Peer Discovery frames since there is only |
42 | * a single transaction in progress at any point in time. */ | |
43 | static const u8 TRANSACTION_ID = 1; | |
44 | ||
30d27b04 | 45 | |
461d39af JM |
46 | static struct dpp_configurator * |
47 | dpp_configurator_get_id(struct wpa_supplicant *wpa_s, unsigned int id) | |
48 | { | |
49 | struct dpp_configurator *conf; | |
50 | ||
51 | dl_list_for_each(conf, &wpa_s->dpp_configurator, | |
52 | struct dpp_configurator, list) { | |
53 | if (conf->id == id) | |
54 | return conf; | |
55 | } | |
56 | return NULL; | |
57 | } | |
58 | ||
59 | ||
be27e185 JM |
60 | static unsigned int wpas_dpp_next_id(struct wpa_supplicant *wpa_s) |
61 | { | |
62 | struct dpp_bootstrap_info *bi; | |
63 | unsigned int max_id = 0; | |
64 | ||
65 | dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info, | |
66 | list) { | |
67 | if (bi->id > max_id) | |
68 | max_id = bi->id; | |
69 | } | |
70 | return max_id + 1; | |
71 | } | |
72 | ||
73 | ||
74 | /** | |
75 | * wpas_dpp_qr_code - Parse and add DPP bootstrapping info from a QR Code | |
76 | * @wpa_s: Pointer to wpa_supplicant data | |
77 | * @cmd: DPP URI read from a QR Code | |
78 | * Returns: Identifier of the stored info or -1 on failure | |
79 | */ | |
80 | int wpas_dpp_qr_code(struct wpa_supplicant *wpa_s, const char *cmd) | |
81 | { | |
82 | struct dpp_bootstrap_info *bi; | |
30d27b04 | 83 | struct dpp_authentication *auth = wpa_s->dpp_auth; |
be27e185 JM |
84 | |
85 | bi = dpp_parse_qr_code(cmd); | |
86 | if (!bi) | |
87 | return -1; | |
88 | ||
89 | bi->id = wpas_dpp_next_id(wpa_s); | |
90 | dl_list_add(&wpa_s->dpp_bootstrap, &bi->list); | |
91 | ||
30d27b04 JM |
92 | if (auth && auth->response_pending && |
93 | dpp_notify_new_qr_code(auth, bi) == 1) { | |
30d27b04 JM |
94 | wpa_printf(MSG_DEBUG, |
95 | "DPP: Sending out pending authentication response"); | |
af48810b JM |
96 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR |
97 | " freq=%u type=%d", | |
98 | MAC2STR(auth->peer_mac_addr), auth->curr_freq, | |
99 | DPP_PA_AUTHENTICATION_RESP); | |
30d27b04 JM |
100 | offchannel_send_action(wpa_s, auth->curr_freq, |
101 | auth->peer_mac_addr, wpa_s->own_addr, | |
102 | broadcast, | |
dc4d271c JM |
103 | wpabuf_head(auth->resp_msg), |
104 | wpabuf_len(auth->resp_msg), | |
30d27b04 | 105 | 500, wpas_dpp_tx_status, 0); |
30d27b04 JM |
106 | } |
107 | ||
be27e185 JM |
108 | return bi->id; |
109 | } | |
110 | ||
111 | ||
112 | static char * get_param(const char *cmd, const char *param) | |
113 | { | |
114 | const char *pos, *end; | |
115 | char *val; | |
116 | size_t len; | |
117 | ||
118 | pos = os_strstr(cmd, param); | |
119 | if (!pos) | |
120 | return NULL; | |
121 | ||
122 | pos += os_strlen(param); | |
123 | end = os_strchr(pos, ' '); | |
124 | if (end) | |
125 | len = end - pos; | |
126 | else | |
127 | len = os_strlen(pos); | |
128 | val = os_malloc(len + 1); | |
129 | if (!val) | |
130 | return NULL; | |
131 | os_memcpy(val, pos, len); | |
132 | val[len] = '\0'; | |
133 | return val; | |
134 | } | |
135 | ||
136 | ||
137 | int wpas_dpp_bootstrap_gen(struct wpa_supplicant *wpa_s, const char *cmd) | |
138 | { | |
139 | char *chan = NULL, *mac = NULL, *info = NULL, *pk = NULL, *curve = NULL; | |
140 | char *key = NULL; | |
141 | u8 *privkey = NULL; | |
142 | size_t privkey_len = 0; | |
143 | size_t len; | |
144 | int ret = -1; | |
145 | struct dpp_bootstrap_info *bi; | |
146 | ||
147 | bi = os_zalloc(sizeof(*bi)); | |
148 | if (!bi) | |
149 | goto fail; | |
150 | ||
151 | if (os_strstr(cmd, "type=qrcode")) | |
152 | bi->type = DPP_BOOTSTRAP_QR_CODE; | |
500ed7f0 JM |
153 | else if (os_strstr(cmd, "type=pkex")) |
154 | bi->type = DPP_BOOTSTRAP_PKEX; | |
be27e185 JM |
155 | else |
156 | goto fail; | |
157 | ||
158 | chan = get_param(cmd, " chan="); | |
159 | mac = get_param(cmd, " mac="); | |
160 | info = get_param(cmd, " info="); | |
161 | curve = get_param(cmd, " curve="); | |
162 | key = get_param(cmd, " key="); | |
163 | ||
164 | if (key) { | |
165 | privkey_len = os_strlen(key) / 2; | |
166 | privkey = os_malloc(privkey_len); | |
167 | if (!privkey || | |
168 | hexstr2bin(key, privkey, privkey_len) < 0) | |
169 | goto fail; | |
170 | } | |
171 | ||
172 | pk = dpp_keygen(bi, curve, privkey, privkey_len); | |
173 | if (!pk) | |
174 | goto fail; | |
175 | ||
176 | len = 4; /* "DPP:" */ | |
177 | if (chan) { | |
178 | if (dpp_parse_uri_chan_list(bi, chan) < 0) | |
179 | goto fail; | |
180 | len += 3 + os_strlen(chan); /* C:...; */ | |
181 | } | |
182 | if (mac) { | |
183 | if (dpp_parse_uri_mac(bi, mac) < 0) | |
184 | goto fail; | |
185 | len += 3 + os_strlen(mac); /* M:...; */ | |
186 | } | |
187 | if (info) { | |
188 | if (dpp_parse_uri_info(bi, info) < 0) | |
189 | goto fail; | |
190 | len += 3 + os_strlen(info); /* I:...; */ | |
191 | } | |
192 | len += 4 + os_strlen(pk); | |
193 | bi->uri = os_malloc(len + 1); | |
194 | if (!bi->uri) | |
195 | goto fail; | |
196 | os_snprintf(bi->uri, len + 1, "DPP:%s%s%s%s%s%s%s%s%sK:%s;;", | |
197 | chan ? "C:" : "", chan ? chan : "", chan ? ";" : "", | |
198 | mac ? "M:" : "", mac ? mac : "", mac ? ";" : "", | |
199 | info ? "I:" : "", info ? info : "", info ? ";" : "", | |
200 | pk); | |
201 | bi->id = wpas_dpp_next_id(wpa_s); | |
202 | dl_list_add(&wpa_s->dpp_bootstrap, &bi->list); | |
203 | ret = bi->id; | |
204 | bi = NULL; | |
205 | fail: | |
206 | os_free(curve); | |
207 | os_free(pk); | |
208 | os_free(chan); | |
209 | os_free(mac); | |
210 | os_free(info); | |
211 | str_clear_free(key); | |
212 | bin_clear_free(privkey, privkey_len); | |
213 | dpp_bootstrap_info_free(bi); | |
214 | return ret; | |
215 | } | |
216 | ||
217 | ||
218 | static struct dpp_bootstrap_info * | |
219 | dpp_bootstrap_get_id(struct wpa_supplicant *wpa_s, unsigned int id) | |
220 | { | |
221 | struct dpp_bootstrap_info *bi; | |
222 | ||
223 | dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info, | |
224 | list) { | |
225 | if (bi->id == id) | |
226 | return bi; | |
227 | } | |
228 | return NULL; | |
229 | } | |
230 | ||
231 | ||
232 | static int dpp_bootstrap_del(struct wpa_supplicant *wpa_s, unsigned int id) | |
233 | { | |
234 | struct dpp_bootstrap_info *bi, *tmp; | |
235 | int found = 0; | |
236 | ||
237 | dl_list_for_each_safe(bi, tmp, &wpa_s->dpp_bootstrap, | |
238 | struct dpp_bootstrap_info, list) { | |
239 | if (id && bi->id != id) | |
240 | continue; | |
241 | found = 1; | |
242 | dl_list_del(&bi->list); | |
243 | dpp_bootstrap_info_free(bi); | |
244 | } | |
245 | ||
246 | if (id == 0) | |
247 | return 0; /* flush succeeds regardless of entries found */ | |
248 | return found ? 0 : -1; | |
249 | } | |
250 | ||
251 | ||
252 | int wpas_dpp_bootstrap_remove(struct wpa_supplicant *wpa_s, const char *id) | |
253 | { | |
254 | unsigned int id_val; | |
255 | ||
256 | if (os_strcmp(id, "*") == 0) { | |
257 | id_val = 0; | |
258 | } else { | |
259 | id_val = atoi(id); | |
260 | if (id_val == 0) | |
261 | return -1; | |
262 | } | |
263 | ||
264 | return dpp_bootstrap_del(wpa_s, id_val); | |
265 | } | |
266 | ||
267 | ||
268 | const char * wpas_dpp_bootstrap_get_uri(struct wpa_supplicant *wpa_s, | |
269 | unsigned int id) | |
270 | { | |
271 | struct dpp_bootstrap_info *bi; | |
272 | ||
273 | bi = dpp_bootstrap_get_id(wpa_s, id); | |
274 | if (!bi) | |
275 | return NULL; | |
276 | return bi->uri; | |
277 | } | |
278 | ||
279 | ||
6a7182a9 JM |
280 | int wpas_dpp_bootstrap_info(struct wpa_supplicant *wpa_s, int id, |
281 | char *reply, int reply_size) | |
282 | { | |
283 | struct dpp_bootstrap_info *bi; | |
284 | ||
285 | bi = dpp_bootstrap_get_id(wpa_s, id); | |
286 | if (!bi) | |
287 | return -1; | |
288 | return os_snprintf(reply, reply_size, "type=%s\n" | |
289 | "mac_addr=" MACSTR "\n" | |
290 | "info=%s\n" | |
291 | "num_freq=%u\n" | |
292 | "curve=%s\n", | |
484788b8 | 293 | dpp_bootstrap_type_txt(bi->type), |
6a7182a9 JM |
294 | MAC2STR(bi->mac_addr), |
295 | bi->info ? bi->info : "", | |
296 | bi->num_freq, | |
297 | bi->curve->name); | |
298 | } | |
299 | ||
300 | ||
30d27b04 JM |
301 | static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s, |
302 | unsigned int freq, const u8 *dst, | |
303 | const u8 *src, const u8 *bssid, | |
304 | const u8 *data, size_t data_len, | |
305 | enum offchannel_send_action_result result) | |
306 | { | |
af48810b JM |
307 | const char *res_txt; |
308 | ||
309 | res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : | |
310 | (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : | |
311 | "FAILED"); | |
30d27b04 | 312 | wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR |
af48810b JM |
313 | " result=%s", freq, MAC2STR(dst), res_txt); |
314 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR | |
315 | " freq=%u result=%s", MAC2STR(dst), freq, res_txt); | |
30d27b04 JM |
316 | |
317 | if (!wpa_s->dpp_auth) { | |
318 | wpa_printf(MSG_DEBUG, | |
319 | "DPP: Ignore TX status since there is no ongoing authentication exchange"); | |
320 | return; | |
321 | } | |
322 | ||
323 | if (wpa_s->dpp_auth->remove_on_tx_status) { | |
324 | wpa_printf(MSG_DEBUG, | |
325 | "DPP: Terminate authentication exchange due to an earlier error"); | |
461d39af JM |
326 | eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
327 | offchannel_send_action_done(wpa_s); | |
30d27b04 JM |
328 | dpp_auth_deinit(wpa_s->dpp_auth); |
329 | wpa_s->dpp_auth = NULL; | |
330 | return; | |
331 | } | |
332 | ||
461d39af JM |
333 | if (wpa_s->dpp_auth_ok_on_ack) |
334 | wpas_dpp_auth_success(wpa_s, 1); | |
335 | ||
30d27b04 JM |
336 | if (!is_broadcast_ether_addr(dst) && |
337 | result != OFFCHANNEL_SEND_ACTION_SUCCESS) { | |
338 | wpa_printf(MSG_DEBUG, | |
339 | "DPP: Unicast DPP Action frame was not ACKed"); | |
340 | /* TODO: In case of DPP Authentication Request frame, move to | |
341 | * the next channel immediately */ | |
342 | } | |
d2709206 JM |
343 | |
344 | if (!wpa_s->dpp_auth_ok_on_ack && wpa_s->dpp_auth->neg_freq > 0 && | |
345 | wpa_s->dpp_auth->curr_freq != wpa_s->dpp_auth->neg_freq) { | |
346 | wpa_printf(MSG_DEBUG, | |
347 | "DPP: Move from curr_freq %u MHz to neg_freq %u MHz for response", | |
348 | wpa_s->dpp_auth->curr_freq, | |
349 | wpa_s->dpp_auth->neg_freq); | |
350 | offchannel_send_action_done(wpa_s); | |
351 | wpas_dpp_listen_start(wpa_s, wpa_s->dpp_auth->neg_freq); | |
352 | } | |
30d27b04 JM |
353 | } |
354 | ||
355 | ||
356 | static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx) | |
357 | { | |
358 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
d2709206 | 359 | unsigned int freq; |
30d27b04 JM |
360 | |
361 | if (!wpa_s->dpp_auth) | |
362 | return; | |
d2709206 JM |
363 | freq = wpa_s->dpp_auth->curr_freq; |
364 | if (wpa_s->dpp_auth->neg_freq > 0) | |
365 | freq = wpa_s->dpp_auth->neg_freq; | |
30d27b04 | 366 | wpa_printf(MSG_DEBUG, "DPP: Continue reply wait on channel %u MHz", |
d2709206 JM |
367 | freq); |
368 | wpas_dpp_listen_start(wpa_s, freq); | |
30d27b04 JM |
369 | } |
370 | ||
371 | ||
461d39af JM |
372 | static void wpas_dpp_set_testing_options(struct wpa_supplicant *wpa_s, |
373 | struct dpp_authentication *auth) | |
374 | { | |
375 | #ifdef CONFIG_TESTING_OPTIONS | |
376 | if (wpa_s->dpp_config_obj_override) | |
377 | auth->config_obj_override = | |
378 | os_strdup(wpa_s->dpp_config_obj_override); | |
379 | if (wpa_s->dpp_discovery_override) | |
380 | auth->discovery_override = | |
381 | os_strdup(wpa_s->dpp_discovery_override); | |
382 | if (wpa_s->dpp_groups_override) | |
383 | auth->groups_override = | |
384 | os_strdup(wpa_s->dpp_groups_override); | |
461d39af JM |
385 | auth->ignore_netaccesskey_mismatch = |
386 | wpa_s->dpp_ignore_netaccesskey_mismatch; | |
387 | #endif /* CONFIG_TESTING_OPTIONS */ | |
388 | } | |
389 | ||
390 | ||
b65b22d6 JM |
391 | static void wpas_dpp_set_configurator(struct wpa_supplicant *wpa_s, |
392 | struct dpp_authentication *auth, | |
393 | const char *cmd) | |
30d27b04 | 394 | { |
68cb6dce | 395 | const char *pos, *end; |
461d39af JM |
396 | struct dpp_configuration *conf_sta = NULL, *conf_ap = NULL; |
397 | struct dpp_configurator *conf = NULL; | |
68cb6dce JM |
398 | u8 ssid[32] = { "test" }; |
399 | size_t ssid_len = 4; | |
35f06421 JM |
400 | char pass[64] = { }; |
401 | size_t pass_len = 0; | |
5030d7d9 JM |
402 | u8 psk[PMK_LEN]; |
403 | int psk_set = 0; | |
461d39af | 404 | |
b65b22d6 JM |
405 | if (!cmd) |
406 | return; | |
461d39af | 407 | |
b65b22d6 | 408 | wpa_printf(MSG_DEBUG, "DPP: Set configurator parameters: %s", cmd); |
68cb6dce JM |
409 | pos = os_strstr(cmd, " ssid="); |
410 | if (pos) { | |
411 | pos += 6; | |
412 | end = os_strchr(pos, ' '); | |
413 | ssid_len = end ? (size_t) (end - pos) : os_strlen(pos); | |
414 | ssid_len /= 2; | |
415 | if (ssid_len > sizeof(ssid) || | |
416 | hexstr2bin(pos, ssid, ssid_len) < 0) | |
417 | goto fail; | |
418 | } | |
419 | ||
35f06421 JM |
420 | pos = os_strstr(cmd, " pass="); |
421 | if (pos) { | |
422 | pos += 6; | |
423 | end = os_strchr(pos, ' '); | |
424 | pass_len = end ? (size_t) (end - pos) : os_strlen(pos); | |
425 | pass_len /= 2; | |
426 | if (pass_len > sizeof(pass) - 1 || pass_len < 8 || | |
427 | hexstr2bin(pos, (u8 *) pass, pass_len) < 0) | |
428 | goto fail; | |
429 | } | |
430 | ||
5030d7d9 JM |
431 | pos = os_strstr(cmd, " psk="); |
432 | if (pos) { | |
433 | pos += 5; | |
434 | if (hexstr2bin(pos, psk, PMK_LEN) < 0) | |
435 | goto fail; | |
436 | psk_set = 1; | |
437 | } | |
438 | ||
461d39af JM |
439 | if (os_strstr(cmd, " conf=sta-")) { |
440 | conf_sta = os_zalloc(sizeof(struct dpp_configuration)); | |
441 | if (!conf_sta) | |
442 | goto fail; | |
68cb6dce JM |
443 | os_memcpy(conf_sta->ssid, ssid, ssid_len); |
444 | conf_sta->ssid_len = ssid_len; | |
461d39af JM |
445 | if (os_strstr(cmd, " conf=sta-psk")) { |
446 | conf_sta->dpp = 0; | |
5030d7d9 JM |
447 | if (psk_set) { |
448 | os_memcpy(conf_sta->psk, psk, PMK_LEN); | |
449 | } else { | |
450 | conf_sta->passphrase = os_strdup(pass); | |
451 | if (!conf_sta->passphrase) | |
452 | goto fail; | |
453 | } | |
461d39af JM |
454 | } else if (os_strstr(cmd, " conf=sta-dpp")) { |
455 | conf_sta->dpp = 1; | |
456 | } else { | |
457 | goto fail; | |
458 | } | |
459 | } | |
460 | ||
461 | if (os_strstr(cmd, " conf=ap-")) { | |
462 | conf_ap = os_zalloc(sizeof(struct dpp_configuration)); | |
463 | if (!conf_ap) | |
464 | goto fail; | |
68cb6dce JM |
465 | os_memcpy(conf_ap->ssid, ssid, ssid_len); |
466 | conf_ap->ssid_len = ssid_len; | |
461d39af JM |
467 | if (os_strstr(cmd, " conf=ap-psk")) { |
468 | conf_ap->dpp = 0; | |
5030d7d9 JM |
469 | if (psk_set) { |
470 | os_memcpy(conf_ap->psk, psk, PMK_LEN); | |
471 | } else { | |
472 | conf_ap->passphrase = os_strdup(pass); | |
473 | if (!conf_ap->passphrase) | |
474 | goto fail; | |
475 | } | |
461d39af JM |
476 | } else if (os_strstr(cmd, " conf=ap-dpp")) { |
477 | conf_ap->dpp = 1; | |
478 | } else { | |
479 | goto fail; | |
480 | } | |
481 | } | |
482 | ||
483 | pos = os_strstr(cmd, " expiry="); | |
484 | if (pos) { | |
485 | long int val; | |
486 | ||
487 | pos += 8; | |
488 | val = strtol(pos, NULL, 0); | |
489 | if (val <= 0) | |
490 | goto fail; | |
491 | if (conf_sta) | |
492 | conf_sta->netaccesskey_expiry = val; | |
493 | if (conf_ap) | |
494 | conf_ap->netaccesskey_expiry = val; | |
495 | } | |
496 | ||
497 | pos = os_strstr(cmd, " configurator="); | |
498 | if (pos) { | |
499 | pos += 14; | |
500 | conf = dpp_configurator_get_id(wpa_s, atoi(pos)); | |
501 | if (!conf) { | |
502 | wpa_printf(MSG_INFO, | |
503 | "DPP: Could not find the specified configurator"); | |
504 | goto fail; | |
505 | } | |
30d27b04 | 506 | } |
b65b22d6 JM |
507 | auth->conf_sta = conf_sta; |
508 | auth->conf_ap = conf_ap; | |
509 | auth->conf = conf; | |
510 | return; | |
511 | ||
512 | fail: | |
513 | wpa_printf(MSG_DEBUG, "DPP: Failed to set configurator parameters"); | |
514 | dpp_configuration_free(conf_sta); | |
515 | dpp_configuration_free(conf_ap); | |
516 | } | |
517 | ||
518 | ||
519 | int wpas_dpp_auth_init(struct wpa_supplicant *wpa_s, const char *cmd) | |
520 | { | |
521 | const char *pos; | |
522 | struct dpp_bootstrap_info *peer_bi, *own_bi = NULL; | |
b65b22d6 JM |
523 | const u8 *dst; |
524 | int res; | |
525 | int configurator = 1; | |
526 | unsigned int wait_time; | |
d2709206 | 527 | unsigned int neg_freq = 0; |
b65b22d6 JM |
528 | |
529 | wpa_s->dpp_gas_client = 0; | |
530 | ||
531 | pos = os_strstr(cmd, " peer="); | |
532 | if (!pos) | |
533 | return -1; | |
534 | pos += 6; | |
535 | peer_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos)); | |
536 | if (!peer_bi) { | |
537 | wpa_printf(MSG_INFO, | |
538 | "DPP: Could not find bootstrapping info for the identified peer"); | |
539 | return -1; | |
540 | } | |
541 | ||
542 | pos = os_strstr(cmd, " own="); | |
543 | if (pos) { | |
544 | pos += 5; | |
545 | own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos)); | |
546 | if (!own_bi) { | |
547 | wpa_printf(MSG_INFO, | |
548 | "DPP: Could not find bootstrapping info for the identified local entry"); | |
549 | return -1; | |
550 | } | |
551 | ||
552 | if (peer_bi->curve != own_bi->curve) { | |
553 | wpa_printf(MSG_INFO, | |
554 | "DPP: Mismatching curves in bootstrapping info (peer=%s own=%s)", | |
555 | peer_bi->curve->name, own_bi->curve->name); | |
556 | return -1; | |
557 | } | |
558 | } | |
559 | ||
560 | pos = os_strstr(cmd, " role="); | |
561 | if (pos) { | |
562 | pos += 6; | |
563 | if (os_strncmp(pos, "configurator", 12) == 0) | |
564 | configurator = 1; | |
565 | else if (os_strncmp(pos, "enrollee", 8) == 0) | |
566 | configurator = 0; | |
567 | else | |
568 | goto fail; | |
569 | } | |
570 | ||
571 | pos = os_strstr(cmd, " netrole="); | |
572 | if (pos) { | |
573 | pos += 9; | |
574 | wpa_s->dpp_netrole_ap = os_strncmp(pos, "ap", 2) == 0; | |
575 | } | |
30d27b04 | 576 | |
d2709206 JM |
577 | pos = os_strstr(cmd, " neg_freq="); |
578 | if (pos) | |
579 | neg_freq = atoi(pos + 10); | |
580 | ||
30d27b04 JM |
581 | if (wpa_s->dpp_auth) { |
582 | eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); | |
583 | offchannel_send_action_done(wpa_s); | |
584 | dpp_auth_deinit(wpa_s->dpp_auth); | |
585 | } | |
d2709206 JM |
586 | wpa_s->dpp_auth = dpp_auth_init(wpa_s, peer_bi, own_bi, configurator, |
587 | neg_freq); | |
30d27b04 | 588 | if (!wpa_s->dpp_auth) |
461d39af JM |
589 | goto fail; |
590 | wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth); | |
b65b22d6 | 591 | wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth, cmd); |
30d27b04 JM |
592 | |
593 | /* TODO: Support iteration over all frequencies and filtering of | |
594 | * frequencies based on locally enabled channels that allow initiation | |
595 | * of transmission. */ | |
596 | if (peer_bi->num_freq > 0) | |
597 | wpa_s->dpp_auth->curr_freq = peer_bi->freq[0]; | |
598 | else | |
599 | wpa_s->dpp_auth->curr_freq = 2412; | |
d2709206 | 600 | wpa_s->dpp_auth->neg_freq = neg_freq; |
30d27b04 | 601 | |
30d27b04 JM |
602 | if (is_zero_ether_addr(peer_bi->mac_addr)) { |
603 | dst = broadcast; | |
604 | } else { | |
605 | dst = peer_bi->mac_addr; | |
606 | os_memcpy(wpa_s->dpp_auth->peer_mac_addr, peer_bi->mac_addr, | |
607 | ETH_ALEN); | |
608 | } | |
461d39af | 609 | wpa_s->dpp_auth_ok_on_ack = 0; |
30d27b04 JM |
610 | eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
611 | wait_time = wpa_s->max_remain_on_chan; | |
612 | if (wait_time > 2000) | |
613 | wait_time = 2000; | |
614 | eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000, | |
615 | wpas_dpp_reply_wait_timeout, | |
616 | wpa_s, NULL); | |
d2709206 JM |
617 | if (neg_freq > 0 && wpa_s->dpp_auth->curr_freq != neg_freq) { |
618 | wpa_printf(MSG_DEBUG, | |
619 | "DPP: Initiate on curr_freq %u MHz and move to neg_freq %u MHz for response", | |
620 | wpa_s->dpp_auth->curr_freq, | |
621 | wpa_s->dpp_auth->neg_freq); | |
622 | } | |
af48810b JM |
623 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
624 | MAC2STR(dst), wpa_s->dpp_auth->curr_freq, | |
625 | DPP_PA_AUTHENTICATION_REQ); | |
30d27b04 JM |
626 | res = offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq, |
627 | dst, wpa_s->own_addr, broadcast, | |
dc4d271c JM |
628 | wpabuf_head(wpa_s->dpp_auth->req_msg), |
629 | wpabuf_len(wpa_s->dpp_auth->req_msg), | |
30d27b04 | 630 | wait_time, wpas_dpp_tx_status, 0); |
30d27b04 JM |
631 | |
632 | return res; | |
461d39af | 633 | fail: |
461d39af | 634 | return -1; |
30d27b04 JM |
635 | } |
636 | ||
637 | ||
638 | struct wpas_dpp_listen_work { | |
639 | unsigned int freq; | |
640 | unsigned int duration; | |
641 | struct wpabuf *probe_resp_ie; | |
642 | }; | |
643 | ||
644 | ||
645 | static void wpas_dpp_listen_work_free(struct wpas_dpp_listen_work *lwork) | |
646 | { | |
647 | if (!lwork) | |
648 | return; | |
649 | os_free(lwork); | |
650 | } | |
651 | ||
652 | ||
653 | static void wpas_dpp_listen_work_done(struct wpa_supplicant *wpa_s) | |
654 | { | |
655 | struct wpas_dpp_listen_work *lwork; | |
656 | ||
657 | if (!wpa_s->dpp_listen_work) | |
658 | return; | |
659 | ||
660 | lwork = wpa_s->dpp_listen_work->ctx; | |
661 | wpas_dpp_listen_work_free(lwork); | |
662 | radio_work_done(wpa_s->dpp_listen_work); | |
663 | wpa_s->dpp_listen_work = NULL; | |
664 | } | |
665 | ||
666 | ||
667 | static void dpp_start_listen_cb(struct wpa_radio_work *work, int deinit) | |
668 | { | |
669 | struct wpa_supplicant *wpa_s = work->wpa_s; | |
670 | struct wpas_dpp_listen_work *lwork = work->ctx; | |
671 | ||
672 | if (deinit) { | |
673 | if (work->started) { | |
674 | wpa_s->dpp_listen_work = NULL; | |
675 | wpas_dpp_listen_stop(wpa_s); | |
676 | } | |
677 | wpas_dpp_listen_work_free(lwork); | |
678 | return; | |
679 | } | |
680 | ||
681 | wpa_s->dpp_listen_work = work; | |
682 | ||
683 | wpa_s->dpp_pending_listen_freq = lwork->freq; | |
684 | ||
685 | if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, | |
686 | wpa_s->max_remain_on_chan) < 0) { | |
687 | wpa_printf(MSG_DEBUG, | |
688 | "DPP: Failed to request the driver to remain on channel (%u MHz) for listen", | |
689 | lwork->freq); | |
690 | wpas_dpp_listen_work_done(wpa_s); | |
691 | wpa_s->dpp_pending_listen_freq = 0; | |
692 | return; | |
693 | } | |
694 | wpa_s->off_channel_freq = 0; | |
695 | wpa_s->roc_waiting_drv_freq = lwork->freq; | |
696 | } | |
697 | ||
698 | ||
699 | static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s, | |
700 | unsigned int freq) | |
701 | { | |
702 | struct wpas_dpp_listen_work *lwork; | |
703 | ||
704 | if (wpa_s->dpp_listen_work) { | |
705 | wpa_printf(MSG_DEBUG, | |
706 | "DPP: Reject start_listen since dpp_listen_work already exists"); | |
707 | return -1; | |
708 | } | |
709 | ||
710 | if (wpa_s->dpp_listen_freq) | |
711 | wpas_dpp_listen_stop(wpa_s); | |
712 | wpa_s->dpp_listen_freq = freq; | |
713 | ||
714 | lwork = os_zalloc(sizeof(*lwork)); | |
715 | if (!lwork) | |
716 | return -1; | |
717 | lwork->freq = freq; | |
718 | ||
719 | if (radio_add_work(wpa_s, freq, "dpp-listen", 0, dpp_start_listen_cb, | |
720 | lwork) < 0) { | |
721 | wpas_dpp_listen_work_free(lwork); | |
722 | return -1; | |
723 | } | |
724 | ||
725 | return 0; | |
726 | } | |
727 | ||
728 | ||
729 | int wpas_dpp_listen(struct wpa_supplicant *wpa_s, const char *cmd) | |
730 | { | |
731 | int freq; | |
732 | ||
733 | freq = atoi(cmd); | |
734 | if (freq <= 0) | |
735 | return -1; | |
736 | ||
737 | if (os_strstr(cmd, " role=configurator")) | |
738 | wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR; | |
739 | else if (os_strstr(cmd, " role=enrollee")) | |
740 | wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE; | |
741 | else | |
742 | wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR | | |
743 | DPP_CAPAB_ENROLLEE; | |
744 | wpa_s->dpp_qr_mutual = os_strstr(cmd, " qr=mutual") != NULL; | |
461d39af | 745 | wpa_s->dpp_netrole_ap = os_strstr(cmd, " netrole=ap") != NULL; |
30d27b04 JM |
746 | if (wpa_s->dpp_listen_freq == (unsigned int) freq) { |
747 | wpa_printf(MSG_DEBUG, "DPP: Already listening on %u MHz", | |
748 | freq); | |
749 | return 0; | |
750 | } | |
751 | ||
752 | return wpas_dpp_listen_start(wpa_s, freq); | |
753 | } | |
754 | ||
755 | ||
756 | void wpas_dpp_listen_stop(struct wpa_supplicant *wpa_s) | |
757 | { | |
758 | if (!wpa_s->dpp_listen_freq) | |
759 | return; | |
760 | ||
761 | wpa_printf(MSG_DEBUG, "DPP: Stop listen on %u MHz", | |
762 | wpa_s->dpp_listen_freq); | |
763 | wpa_drv_cancel_remain_on_channel(wpa_s); | |
764 | wpa_s->dpp_listen_freq = 0; | |
765 | wpas_dpp_listen_work_done(wpa_s); | |
766 | } | |
767 | ||
768 | ||
769 | void wpas_dpp_remain_on_channel_cb(struct wpa_supplicant *wpa_s, | |
770 | unsigned int freq) | |
771 | { | |
772 | if (!wpa_s->dpp_listen_freq && !wpa_s->dpp_pending_listen_freq) | |
773 | return; | |
774 | ||
775 | wpa_printf(MSG_DEBUG, | |
776 | "DPP: remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u)", | |
777 | wpa_s->off_channel_freq, wpa_s->dpp_pending_listen_freq, | |
778 | wpa_s->roc_waiting_drv_freq, freq); | |
779 | if (wpa_s->off_channel_freq && | |
780 | wpa_s->off_channel_freq == wpa_s->dpp_pending_listen_freq) { | |
781 | wpa_printf(MSG_DEBUG, "DPP: Listen on %u MHz started", freq); | |
782 | wpa_s->dpp_pending_listen_freq = 0; | |
783 | } else { | |
784 | wpa_printf(MSG_DEBUG, | |
785 | "DPP: Ignore remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d freq=%u)", | |
786 | wpa_s->off_channel_freq, | |
787 | wpa_s->dpp_pending_listen_freq, freq); | |
788 | } | |
789 | } | |
790 | ||
791 | ||
792 | void wpas_dpp_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s, | |
793 | unsigned int freq) | |
794 | { | |
795 | wpas_dpp_listen_work_done(wpa_s); | |
796 | ||
461d39af | 797 | if (wpa_s->dpp_auth && !wpa_s->dpp_gas_client) { |
30d27b04 JM |
798 | /* Continue listen with a new remain-on-channel */ |
799 | wpa_printf(MSG_DEBUG, | |
800 | "DPP: Continue wait on %u MHz for the ongoing DPP provisioning session", | |
801 | wpa_s->dpp_auth->curr_freq); | |
802 | wpas_dpp_listen_start(wpa_s, wpa_s->dpp_auth->curr_freq); | |
803 | return; | |
804 | } | |
805 | ||
806 | if (wpa_s->dpp_listen_freq) { | |
807 | /* Continue listen with a new remain-on-channel */ | |
808 | wpas_dpp_listen_start(wpa_s, wpa_s->dpp_listen_freq); | |
809 | } | |
810 | } | |
811 | ||
812 | ||
813 | static void wpas_dpp_rx_auth_req(struct wpa_supplicant *wpa_s, const u8 *src, | |
dc4d271c JM |
814 | const u8 *hdr, const u8 *buf, size_t len, |
815 | unsigned int freq) | |
30d27b04 | 816 | { |
27fefbbb JM |
817 | const u8 *r_bootstrap, *i_bootstrap; |
818 | u16 r_bootstrap_len, i_bootstrap_len; | |
30d27b04 | 819 | struct dpp_bootstrap_info *bi, *own_bi = NULL, *peer_bi = NULL; |
30d27b04 JM |
820 | |
821 | wpa_printf(MSG_DEBUG, "DPP: Authentication Request from " MACSTR, | |
822 | MAC2STR(src)); | |
823 | ||
30d27b04 JM |
824 | r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH, |
825 | &r_bootstrap_len); | |
27fefbbb | 826 | if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) { |
26806abe JM |
827 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
828 | "Missing or invalid required Responder Bootstrapping Key Hash attribute"); | |
30d27b04 JM |
829 | return; |
830 | } | |
831 | wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash", | |
832 | r_bootstrap, r_bootstrap_len); | |
833 | ||
834 | i_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH, | |
835 | &i_bootstrap_len); | |
27fefbbb | 836 | if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) { |
26806abe JM |
837 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
838 | "Missing or invalid required Initiator Bootstrapping Key Hash attribute"); | |
30d27b04 JM |
839 | return; |
840 | } | |
841 | wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash", | |
842 | i_bootstrap, i_bootstrap_len); | |
843 | ||
844 | /* Try to find own and peer bootstrapping key matches based on the | |
845 | * received hash values */ | |
846 | dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info, | |
847 | list) { | |
848 | if (!own_bi && bi->own && | |
849 | os_memcmp(bi->pubkey_hash, r_bootstrap, | |
850 | SHA256_MAC_LEN) == 0) { | |
851 | wpa_printf(MSG_DEBUG, | |
852 | "DPP: Found matching own bootstrapping information"); | |
853 | own_bi = bi; | |
854 | } | |
855 | ||
856 | if (!peer_bi && !bi->own && | |
857 | os_memcmp(bi->pubkey_hash, i_bootstrap, | |
858 | SHA256_MAC_LEN) == 0) { | |
859 | wpa_printf(MSG_DEBUG, | |
860 | "DPP: Found matching peer bootstrapping information"); | |
861 | peer_bi = bi; | |
862 | } | |
863 | ||
864 | if (own_bi && peer_bi) | |
865 | break; | |
866 | } | |
867 | ||
868 | if (!own_bi) { | |
26806abe JM |
869 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
870 | "No matching own bootstrapping key found - ignore message"); | |
30d27b04 JM |
871 | return; |
872 | } | |
873 | ||
874 | if (wpa_s->dpp_auth) { | |
26806abe JM |
875 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL |
876 | "Already in DPP authentication exchange - ignore new one"); | |
30d27b04 JM |
877 | return; |
878 | } | |
879 | ||
461d39af JM |
880 | wpa_s->dpp_gas_client = 0; |
881 | wpa_s->dpp_auth_ok_on_ack = 0; | |
30d27b04 JM |
882 | wpa_s->dpp_auth = dpp_auth_req_rx(wpa_s, wpa_s->dpp_allowed_roles, |
883 | wpa_s->dpp_qr_mutual, | |
27fefbbb | 884 | peer_bi, own_bi, freq, hdr, buf, len); |
30d27b04 JM |
885 | if (!wpa_s->dpp_auth) { |
886 | wpa_printf(MSG_DEBUG, "DPP: No response generated"); | |
887 | return; | |
888 | } | |
461d39af | 889 | wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth); |
b65b22d6 JM |
890 | wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth, |
891 | wpa_s->dpp_configurator_params); | |
30d27b04 JM |
892 | os_memcpy(wpa_s->dpp_auth->peer_mac_addr, src, ETH_ALEN); |
893 | ||
d2709206 JM |
894 | if (wpa_s->dpp_listen_freq && |
895 | wpa_s->dpp_listen_freq != wpa_s->dpp_auth->curr_freq) { | |
896 | wpa_printf(MSG_DEBUG, | |
897 | "DPP: Stop listen on %u MHz to allow response on the request %u MHz", | |
898 | wpa_s->dpp_listen_freq, wpa_s->dpp_auth->curr_freq); | |
899 | wpas_dpp_listen_stop(wpa_s); | |
900 | } | |
901 | ||
af48810b JM |
902 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
903 | MAC2STR(src), wpa_s->dpp_auth->curr_freq, | |
904 | DPP_PA_AUTHENTICATION_RESP); | |
30d27b04 JM |
905 | offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq, |
906 | src, wpa_s->own_addr, broadcast, | |
dc4d271c JM |
907 | wpabuf_head(wpa_s->dpp_auth->resp_msg), |
908 | wpabuf_len(wpa_s->dpp_auth->resp_msg), | |
30d27b04 | 909 | 500, wpas_dpp_tx_status, 0); |
30d27b04 JM |
910 | } |
911 | ||
912 | ||
461d39af JM |
913 | static void wpas_dpp_start_gas_server(struct wpa_supplicant *wpa_s) |
914 | { | |
915 | /* TODO: stop wait and start ROC */ | |
916 | } | |
917 | ||
918 | ||
8528994e JM |
919 | static struct wpa_ssid * wpas_dpp_add_network(struct wpa_supplicant *wpa_s, |
920 | struct dpp_authentication *auth) | |
921 | { | |
922 | struct wpa_ssid *ssid; | |
923 | ||
924 | ssid = wpa_config_add_network(wpa_s->conf); | |
925 | if (!ssid) | |
926 | return NULL; | |
927 | wpas_notify_network_added(wpa_s, ssid); | |
928 | wpa_config_set_network_defaults(ssid); | |
929 | ssid->disabled = 1; | |
930 | ||
931 | ssid->ssid = os_malloc(auth->ssid_len); | |
932 | if (!ssid->ssid) | |
933 | goto fail; | |
934 | os_memcpy(ssid->ssid, auth->ssid, auth->ssid_len); | |
935 | ssid->ssid_len = auth->ssid_len; | |
936 | ||
937 | if (auth->connector) { | |
938 | ssid->key_mgmt = WPA_KEY_MGMT_DPP; | |
69d8d029 | 939 | ssid->ieee80211w = 1; |
8528994e JM |
940 | ssid->dpp_connector = os_strdup(auth->connector); |
941 | if (!ssid->dpp_connector) | |
942 | goto fail; | |
943 | } | |
944 | ||
945 | if (auth->c_sign_key) { | |
946 | ssid->dpp_csign = os_malloc(wpabuf_len(auth->c_sign_key)); | |
947 | if (!ssid->dpp_csign) | |
948 | goto fail; | |
949 | os_memcpy(ssid->dpp_csign, wpabuf_head(auth->c_sign_key), | |
950 | wpabuf_len(auth->c_sign_key)); | |
951 | ssid->dpp_csign_len = wpabuf_len(auth->c_sign_key); | |
8528994e JM |
952 | } |
953 | ||
954 | if (auth->net_access_key) { | |
955 | ssid->dpp_netaccesskey = | |
956 | os_malloc(wpabuf_len(auth->net_access_key)); | |
957 | if (!ssid->dpp_netaccesskey) | |
958 | goto fail; | |
959 | os_memcpy(ssid->dpp_netaccesskey, | |
960 | wpabuf_head(auth->net_access_key), | |
961 | wpabuf_len(auth->net_access_key)); | |
962 | ssid->dpp_netaccesskey_len = wpabuf_len(auth->net_access_key); | |
963 | ssid->dpp_netaccesskey_expiry = auth->net_access_key_expiry; | |
964 | } | |
965 | ||
966 | if (!auth->connector) { | |
69d8d029 JM |
967 | ssid->key_mgmt = WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_PSK_SHA256; |
968 | ssid->ieee80211w = 1; | |
8528994e JM |
969 | if (auth->passphrase[0]) { |
970 | if (wpa_config_set_quoted(ssid, "psk", | |
971 | auth->passphrase) < 0) | |
972 | goto fail; | |
973 | wpa_config_update_psk(ssid); | |
974 | ssid->export_keys = 1; | |
975 | } else { | |
976 | ssid->psk_set = auth->psk_set; | |
977 | os_memcpy(ssid->psk, auth->psk, PMK_LEN); | |
978 | } | |
979 | } | |
980 | ||
981 | return ssid; | |
982 | fail: | |
983 | wpas_notify_network_removed(wpa_s, ssid); | |
984 | wpa_config_remove_network(wpa_s->conf, ssid->id); | |
985 | return NULL; | |
986 | } | |
987 | ||
988 | ||
989 | static void wpas_dpp_process_config(struct wpa_supplicant *wpa_s, | |
990 | struct dpp_authentication *auth) | |
991 | { | |
992 | struct wpa_ssid *ssid; | |
993 | ||
994 | if (wpa_s->conf->dpp_config_processing < 1) | |
995 | return; | |
996 | ||
997 | ssid = wpas_dpp_add_network(wpa_s, auth); | |
998 | if (!ssid) | |
999 | return; | |
1000 | ||
1001 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_NETWORK_ID "%d", ssid->id); | |
1002 | if (wpa_s->conf->dpp_config_processing < 2) | |
1003 | return; | |
1004 | ||
1005 | wpa_printf(MSG_DEBUG, "DPP: Trying to connect to the new network"); | |
1006 | ssid->disabled = 0; | |
1007 | wpa_s->disconnected = 0; | |
1008 | wpa_s->reassociate = 1; | |
1009 | wpa_s->scan_runs = 0; | |
1010 | wpa_s->normal_scans = 0; | |
1011 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1012 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1013 | } | |
1014 | ||
1015 | ||
f522bb23 JM |
1016 | static void wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s, |
1017 | struct dpp_authentication *auth) | |
461d39af | 1018 | { |
461d39af JM |
1019 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED); |
1020 | if (auth->ssid_len) | |
1021 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s", | |
1022 | wpa_ssid_txt(auth->ssid, auth->ssid_len)); | |
1023 | if (auth->connector) { | |
1024 | /* TODO: Save the Connector and consider using a command | |
1025 | * to fetch the value instead of sending an event with | |
1026 | * it. The Connector could end up being larger than what | |
1027 | * most clients are ready to receive as an event | |
1028 | * message. */ | |
1029 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONNECTOR "%s", | |
1030 | auth->connector); | |
1031 | } | |
1032 | if (auth->c_sign_key) { | |
1033 | char *hex; | |
1034 | size_t hexlen; | |
1035 | ||
1036 | hexlen = 2 * wpabuf_len(auth->c_sign_key) + 1; | |
1037 | hex = os_malloc(hexlen); | |
1038 | if (hex) { | |
1039 | wpa_snprintf_hex(hex, hexlen, | |
1040 | wpabuf_head(auth->c_sign_key), | |
1041 | wpabuf_len(auth->c_sign_key)); | |
c77e2ff0 JM |
1042 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_C_SIGN_KEY "%s", |
1043 | hex); | |
461d39af JM |
1044 | os_free(hex); |
1045 | } | |
1046 | } | |
1047 | if (auth->net_access_key) { | |
1048 | char *hex; | |
1049 | size_t hexlen; | |
1050 | ||
1051 | hexlen = 2 * wpabuf_len(auth->net_access_key) + 1; | |
1052 | hex = os_malloc(hexlen); | |
1053 | if (hex) { | |
1054 | wpa_snprintf_hex(hex, hexlen, | |
1055 | wpabuf_head(auth->net_access_key), | |
1056 | wpabuf_len(auth->net_access_key)); | |
1057 | if (auth->net_access_key_expiry) | |
1058 | wpa_msg(wpa_s, MSG_INFO, | |
1059 | DPP_EVENT_NET_ACCESS_KEY "%s %lu", hex, | |
1060 | (long unsigned) | |
1061 | auth->net_access_key_expiry); | |
1062 | else | |
1063 | wpa_msg(wpa_s, MSG_INFO, | |
1064 | DPP_EVENT_NET_ACCESS_KEY "%s", hex); | |
1065 | os_free(hex); | |
1066 | } | |
1067 | } | |
8528994e JM |
1068 | |
1069 | wpas_dpp_process_config(wpa_s, auth); | |
f522bb23 JM |
1070 | } |
1071 | ||
1072 | ||
1073 | static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token, | |
1074 | enum gas_query_result result, | |
1075 | const struct wpabuf *adv_proto, | |
1076 | const struct wpabuf *resp, u16 status_code) | |
1077 | { | |
1078 | struct wpa_supplicant *wpa_s = ctx; | |
1079 | const u8 *pos; | |
1080 | struct dpp_authentication *auth = wpa_s->dpp_auth; | |
1081 | ||
1082 | if (!auth || !auth->auth_success) { | |
1083 | wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress"); | |
1084 | return; | |
1085 | } | |
1086 | if (!resp || status_code != WLAN_STATUS_SUCCESS) { | |
1087 | wpa_printf(MSG_DEBUG, "DPP: GAS query did not succeed"); | |
1088 | goto fail; | |
1089 | } | |
1090 | ||
1091 | wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response adv_proto", | |
1092 | adv_proto); | |
1093 | wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response (GAS response)", | |
1094 | resp); | |
1095 | ||
1096 | if (wpabuf_len(adv_proto) != 10 || | |
1097 | !(pos = wpabuf_head(adv_proto)) || | |
1098 | pos[0] != WLAN_EID_ADV_PROTO || | |
1099 | pos[1] != 8 || | |
1100 | pos[3] != WLAN_EID_VENDOR_SPECIFIC || | |
1101 | pos[4] != 5 || | |
1102 | WPA_GET_BE24(&pos[5]) != OUI_WFA || | |
1103 | pos[8] != 0x1a || | |
1104 | pos[9] != 1) { | |
1105 | wpa_printf(MSG_DEBUG, | |
1106 | "DPP: Not a DPP Advertisement Protocol ID"); | |
1107 | goto fail; | |
1108 | } | |
8528994e | 1109 | |
f522bb23 JM |
1110 | if (dpp_conf_resp_rx(auth, resp) < 0) { |
1111 | wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed"); | |
1112 | goto fail; | |
1113 | } | |
1114 | ||
1115 | wpas_dpp_handle_config_obj(wpa_s, auth); | |
461d39af JM |
1116 | dpp_auth_deinit(wpa_s->dpp_auth); |
1117 | wpa_s->dpp_auth = NULL; | |
1118 | return; | |
1119 | ||
1120 | fail: | |
1121 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); | |
1122 | dpp_auth_deinit(wpa_s->dpp_auth); | |
1123 | wpa_s->dpp_auth = NULL; | |
1124 | } | |
1125 | ||
1126 | ||
1127 | static void wpas_dpp_start_gas_client(struct wpa_supplicant *wpa_s) | |
1128 | { | |
1129 | struct dpp_authentication *auth = wpa_s->dpp_auth; | |
1130 | struct wpabuf *buf, *conf_req; | |
1131 | char json[100]; | |
1132 | int res; | |
1133 | ||
1134 | wpa_s->dpp_gas_client = 1; | |
1135 | os_snprintf(json, sizeof(json), | |
1136 | "{\"name\":\"Test\"," | |
1137 | "\"wi-fi_tech\":\"infra\"," | |
1138 | "\"netRole\":\"%s\"}", | |
1139 | wpa_s->dpp_netrole_ap ? "ap" : "sta"); | |
1140 | wpa_printf(MSG_DEBUG, "DPP: GAS Config Attributes: %s", json); | |
1141 | ||
1142 | offchannel_send_action_done(wpa_s); | |
1143 | wpas_dpp_listen_stop(wpa_s); | |
1144 | ||
1145 | conf_req = dpp_build_conf_req(auth, json); | |
1146 | if (!conf_req) { | |
1147 | wpa_printf(MSG_DEBUG, | |
1148 | "DPP: No configuration request data available"); | |
1149 | return; | |
1150 | } | |
1151 | ||
1152 | buf = gas_build_initial_req(0, 10 + 2 + wpabuf_len(conf_req)); | |
1153 | if (!buf) { | |
1154 | wpabuf_free(conf_req); | |
1155 | return; | |
1156 | } | |
1157 | ||
1158 | /* Advertisement Protocol IE */ | |
1159 | wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO); | |
1160 | wpabuf_put_u8(buf, 8); /* Length */ | |
1161 | wpabuf_put_u8(buf, 0x7f); | |
1162 | wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); | |
1163 | wpabuf_put_u8(buf, 5); | |
1164 | wpabuf_put_be24(buf, OUI_WFA); | |
1165 | wpabuf_put_u8(buf, DPP_OUI_TYPE); | |
1166 | wpabuf_put_u8(buf, 0x01); | |
1167 | ||
1168 | /* GAS Query */ | |
1169 | wpabuf_put_le16(buf, wpabuf_len(conf_req)); | |
1170 | wpabuf_put_buf(buf, conf_req); | |
1171 | wpabuf_free(conf_req); | |
1172 | ||
1173 | wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (freq %u MHz)", | |
1174 | MAC2STR(auth->peer_mac_addr), auth->curr_freq); | |
1175 | ||
1176 | res = gas_query_req(wpa_s->gas, auth->peer_mac_addr, auth->curr_freq, | |
1177 | buf, wpas_dpp_gas_resp_cb, wpa_s); | |
1178 | if (res < 0) { | |
1179 | wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request"); | |
1180 | wpabuf_free(buf); | |
1181 | } else { | |
1182 | wpa_printf(MSG_DEBUG, | |
1183 | "DPP: GAS query started with dialog token %u", res); | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | ||
1188 | static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator) | |
1189 | { | |
1190 | wpa_printf(MSG_DEBUG, "DPP: Authentication succeeded"); | |
1191 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=%d", initiator); | |
1192 | ||
1193 | if (wpa_s->dpp_auth->configurator) | |
1194 | wpas_dpp_start_gas_server(wpa_s); | |
1195 | else | |
1196 | wpas_dpp_start_gas_client(wpa_s); | |
1197 | } | |
1198 | ||
1199 | ||
30d27b04 | 1200 | static void wpas_dpp_rx_auth_resp(struct wpa_supplicant *wpa_s, const u8 *src, |
d2709206 JM |
1201 | const u8 *hdr, const u8 *buf, size_t len, |
1202 | unsigned int freq) | |
30d27b04 JM |
1203 | { |
1204 | struct dpp_authentication *auth = wpa_s->dpp_auth; | |
dc4d271c | 1205 | struct wpabuf *msg; |
30d27b04 | 1206 | |
d2709206 JM |
1207 | wpa_printf(MSG_DEBUG, "DPP: Authentication Response from " MACSTR |
1208 | " (freq %u MHz)", MAC2STR(src), freq); | |
30d27b04 JM |
1209 | |
1210 | if (!auth) { | |
1211 | wpa_printf(MSG_DEBUG, | |
1212 | "DPP: No DPP Authentication in progress - drop"); | |
1213 | return; | |
1214 | } | |
1215 | ||
1216 | if (!is_zero_ether_addr(auth->peer_mac_addr) && | |
1217 | os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) { | |
1218 | wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected " | |
1219 | MACSTR ") - drop", MAC2STR(auth->peer_mac_addr)); | |
1220 | return; | |
1221 | } | |
1222 | ||
1223 | eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); | |
1224 | ||
d2709206 JM |
1225 | if (auth->curr_freq != freq && auth->neg_freq == freq) { |
1226 | wpa_printf(MSG_DEBUG, | |
1227 | "DPP: Responder accepted request for different negotiation channel"); | |
1228 | auth->curr_freq = freq; | |
1229 | } | |
1230 | ||
dc4d271c JM |
1231 | msg = dpp_auth_resp_rx(auth, hdr, buf, len); |
1232 | if (!msg) { | |
30d27b04 JM |
1233 | if (auth->auth_resp_status == DPP_STATUS_RESPONSE_PENDING) { |
1234 | wpa_printf(MSG_DEBUG, | |
1235 | "DPP: Start wait for full response"); | |
1236 | offchannel_send_action_done(wpa_s); | |
1237 | wpas_dpp_listen_start(wpa_s, auth->curr_freq); | |
1238 | return; | |
1239 | } | |
1240 | wpa_printf(MSG_DEBUG, "DPP: No confirm generated"); | |
1241 | return; | |
1242 | } | |
1243 | os_memcpy(auth->peer_mac_addr, src, ETH_ALEN); | |
1244 | ||
af48810b JM |
1245 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
1246 | MAC2STR(src), auth->curr_freq, DPP_PA_AUTHENTICATION_CONF); | |
30d27b04 JM |
1247 | offchannel_send_action(wpa_s, auth->curr_freq, |
1248 | src, wpa_s->own_addr, broadcast, | |
1249 | wpabuf_head(msg), wpabuf_len(msg), | |
1250 | 500, wpas_dpp_tx_status, 0); | |
1251 | wpabuf_free(msg); | |
461d39af | 1252 | wpa_s->dpp_auth_ok_on_ack = 1; |
30d27b04 JM |
1253 | } |
1254 | ||
1255 | ||
1256 | static void wpas_dpp_rx_auth_conf(struct wpa_supplicant *wpa_s, const u8 *src, | |
dc4d271c | 1257 | const u8 *hdr, const u8 *buf, size_t len) |
30d27b04 JM |
1258 | { |
1259 | struct dpp_authentication *auth = wpa_s->dpp_auth; | |
1260 | ||
1261 | wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR, | |
1262 | MAC2STR(src)); | |
1263 | ||
1264 | if (!auth) { | |
1265 | wpa_printf(MSG_DEBUG, | |
1266 | "DPP: No DPP Authentication in progress - drop"); | |
1267 | return; | |
1268 | } | |
1269 | ||
1270 | if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) { | |
1271 | wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected " | |
1272 | MACSTR ") - drop", MAC2STR(auth->peer_mac_addr)); | |
1273 | return; | |
1274 | } | |
1275 | ||
dc4d271c | 1276 | if (dpp_auth_conf_rx(auth, hdr, buf, len) < 0) { |
30d27b04 JM |
1277 | wpa_printf(MSG_DEBUG, "DPP: Authentication failed"); |
1278 | return; | |
1279 | } | |
1280 | ||
461d39af | 1281 | wpas_dpp_auth_success(wpa_s, 0); |
30d27b04 JM |
1282 | } |
1283 | ||
1284 | ||
a0d5c56f JM |
1285 | static void wpas_dpp_rx_peer_disc_resp(struct wpa_supplicant *wpa_s, |
1286 | const u8 *src, | |
1287 | const u8 *buf, size_t len) | |
1288 | { | |
1289 | struct wpa_ssid *ssid; | |
e85b6601 JM |
1290 | const u8 *connector, *trans_id, *status; |
1291 | u16 connector_len, trans_id_len, status_len; | |
a0d5c56f JM |
1292 | struct dpp_introduction intro; |
1293 | struct rsn_pmksa_cache_entry *entry; | |
787615b3 JM |
1294 | struct os_time now; |
1295 | struct os_reltime rnow; | |
1296 | os_time_t expiry; | |
1297 | unsigned int seconds; | |
e85b6601 | 1298 | enum dpp_status_error res; |
a0d5c56f JM |
1299 | |
1300 | wpa_printf(MSG_DEBUG, "DPP: Peer Discovery Response from " MACSTR, | |
1301 | MAC2STR(src)); | |
1302 | if (is_zero_ether_addr(wpa_s->dpp_intro_bssid) || | |
1303 | os_memcmp(src, wpa_s->dpp_intro_bssid, ETH_ALEN) != 0) { | |
1304 | wpa_printf(MSG_DEBUG, "DPP: Not waiting for response from " | |
1305 | MACSTR " - drop", MAC2STR(src)); | |
1306 | return; | |
1307 | } | |
1308 | offchannel_send_action_done(wpa_s); | |
1309 | ||
1310 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { | |
1311 | if (ssid == wpa_s->dpp_intro_network) | |
1312 | break; | |
1313 | } | |
1314 | if (!ssid || !ssid->dpp_connector || !ssid->dpp_netaccesskey || | |
1315 | !ssid->dpp_csign) { | |
1316 | wpa_printf(MSG_DEBUG, | |
1317 | "DPP: Profile not found for network introduction"); | |
1318 | return; | |
1319 | } | |
1320 | ||
85fd8263 JM |
1321 | trans_id = dpp_get_attr(buf, len, DPP_ATTR_TRANSACTION_ID, |
1322 | &trans_id_len); | |
1323 | if (!trans_id || trans_id_len != 1) { | |
1324 | wpa_printf(MSG_DEBUG, | |
1325 | "DPP: Peer did not include Transaction ID"); | |
e85b6601 JM |
1326 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
1327 | " fail=missing_transaction_id", MAC2STR(src)); | |
85fd8263 JM |
1328 | goto fail; |
1329 | } | |
1330 | if (trans_id[0] != TRANSACTION_ID) { | |
1331 | wpa_printf(MSG_DEBUG, | |
1332 | "DPP: Ignore frame with unexpected Transaction ID %u", | |
1333 | trans_id[0]); | |
e85b6601 JM |
1334 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
1335 | " fail=transaction_id_mismatch", MAC2STR(src)); | |
1336 | goto fail; | |
1337 | } | |
1338 | ||
1339 | status = dpp_get_attr(buf, len, DPP_ATTR_STATUS, &status_len); | |
1340 | if (!status || status_len != 1) { | |
1341 | wpa_printf(MSG_DEBUG, "DPP: Peer did not include Status"); | |
1342 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR | |
1343 | " fail=missing_status", MAC2STR(src)); | |
1344 | goto fail; | |
1345 | } | |
1346 | if (status[0] != DPP_STATUS_OK) { | |
1347 | wpa_printf(MSG_DEBUG, | |
1348 | "DPP: Peer rejected network introduction: Status %u", | |
1349 | status[0]); | |
1350 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR | |
1351 | " status=%u", MAC2STR(src), status[0]); | |
85fd8263 JM |
1352 | goto fail; |
1353 | } | |
1354 | ||
a0d5c56f JM |
1355 | connector = dpp_get_attr(buf, len, DPP_ATTR_CONNECTOR, &connector_len); |
1356 | if (!connector) { | |
1357 | wpa_printf(MSG_DEBUG, | |
1358 | "DPP: Peer did not include its Connector"); | |
e85b6601 JM |
1359 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
1360 | " fail=missing_connector", MAC2STR(src)); | |
1361 | goto fail; | |
a0d5c56f JM |
1362 | } |
1363 | ||
e85b6601 JM |
1364 | res = dpp_peer_intro(&intro, ssid->dpp_connector, |
1365 | ssid->dpp_netaccesskey, | |
1366 | ssid->dpp_netaccesskey_len, | |
1367 | ssid->dpp_csign, | |
1368 | ssid->dpp_csign_len, | |
1369 | connector, connector_len, &expiry); | |
1370 | if (res != DPP_STATUS_OK) { | |
a0d5c56f JM |
1371 | wpa_printf(MSG_INFO, |
1372 | "DPP: Network Introduction protocol resulted in failure"); | |
e85b6601 JM |
1373 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
1374 | " fail=peer_connector_validation_failed", MAC2STR(src)); | |
a0d5c56f JM |
1375 | goto fail; |
1376 | } | |
1377 | ||
a0d5c56f JM |
1378 | entry = os_zalloc(sizeof(*entry)); |
1379 | if (!entry) | |
1380 | goto fail; | |
1381 | os_memcpy(entry->aa, src, ETH_ALEN); | |
1382 | os_memcpy(entry->pmkid, intro.pmkid, PMKID_LEN); | |
1383 | os_memcpy(entry->pmk, intro.pmk, intro.pmk_len); | |
1384 | entry->pmk_len = intro.pmk_len; | |
1385 | entry->akmp = WPA_KEY_MGMT_DPP; | |
787615b3 JM |
1386 | if (expiry) { |
1387 | os_get_time(&now); | |
1388 | seconds = expiry - now.sec; | |
1389 | } else { | |
1390 | seconds = 86400 * 7; | |
1391 | } | |
1392 | os_get_reltime(&rnow); | |
1393 | entry->expiration = rnow.sec + seconds; | |
1394 | entry->reauth_time = rnow.sec + seconds; | |
a0d5c56f JM |
1395 | entry->network_ctx = ssid; |
1396 | wpa_sm_pmksa_cache_add_entry(wpa_s->wpa, entry); | |
1397 | ||
e85b6601 JM |
1398 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR |
1399 | " status=%u", MAC2STR(src), status[0]); | |
1400 | ||
a0d5c56f JM |
1401 | wpa_printf(MSG_DEBUG, |
1402 | "DPP: Try connection again after successful network introduction"); | |
1403 | if (wpa_supplicant_fast_associate(wpa_s) != 1) { | |
1404 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1405 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1406 | } | |
1407 | fail: | |
1408 | os_memset(&intro, 0, sizeof(intro)); | |
1409 | } | |
1410 | ||
1411 | ||
500ed7f0 JM |
1412 | static void |
1413 | wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s, | |
1414 | unsigned int freq, const u8 *dst, | |
1415 | const u8 *src, const u8 *bssid, | |
1416 | const u8 *data, size_t data_len, | |
1417 | enum offchannel_send_action_result result) | |
1418 | { | |
af48810b JM |
1419 | const char *res_txt; |
1420 | ||
1421 | res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : | |
1422 | (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : | |
1423 | "FAILED"); | |
500ed7f0 JM |
1424 | wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR |
1425 | " result=%s (PKEX)", | |
af48810b JM |
1426 | freq, MAC2STR(dst), res_txt); |
1427 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR | |
1428 | " freq=%u result=%s", MAC2STR(dst), freq, res_txt); | |
500ed7f0 | 1429 | /* TODO: Time out wait for response more quickly in error cases? */ |
e0247e79 JM |
1430 | |
1431 | if (!wpa_s->dpp_pkex) { | |
1432 | wpa_printf(MSG_DEBUG, | |
1433 | "DPP: Ignore TX status since there is no ongoing PKEX exchange"); | |
1434 | return; | |
1435 | } | |
1436 | ||
1437 | if (wpa_s->dpp_pkex->failed) { | |
1438 | wpa_printf(MSG_DEBUG, | |
1439 | "DPP: Terminate PKEX exchange due to an earlier error"); | |
29ab69e4 JM |
1440 | if (wpa_s->dpp_pkex->t > wpa_s->dpp_pkex->own_bi->pkex_t) |
1441 | wpa_s->dpp_pkex->own_bi->pkex_t = wpa_s->dpp_pkex->t; | |
e0247e79 JM |
1442 | dpp_pkex_free(wpa_s->dpp_pkex); |
1443 | wpa_s->dpp_pkex = NULL; | |
1444 | } | |
500ed7f0 JM |
1445 | } |
1446 | ||
1447 | ||
1448 | static void | |
1449 | wpas_dpp_rx_pkex_exchange_req(struct wpa_supplicant *wpa_s, const u8 *src, | |
1450 | const u8 *buf, size_t len, unsigned int freq) | |
1451 | { | |
1452 | struct wpabuf *msg; | |
1453 | unsigned int wait_time; | |
1454 | ||
1455 | wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request from " MACSTR, | |
1456 | MAC2STR(src)); | |
1457 | ||
1458 | /* TODO: Support multiple PKEX codes by iterating over all the enabled | |
1459 | * values here */ | |
1460 | ||
1461 | if (!wpa_s->dpp_pkex_code || !wpa_s->dpp_pkex_bi) { | |
1462 | wpa_printf(MSG_DEBUG, | |
1463 | "DPP: No PKEX code configured - ignore request"); | |
1464 | return; | |
1465 | } | |
1466 | ||
1467 | if (wpa_s->dpp_pkex) { | |
1468 | /* TODO: Support parallel operations */ | |
1469 | wpa_printf(MSG_DEBUG, | |
1470 | "DPP: Already in PKEX session - ignore new request"); | |
1471 | return; | |
1472 | } | |
1473 | ||
219d4c9f | 1474 | wpa_s->dpp_pkex = dpp_pkex_rx_exchange_req(wpa_s, wpa_s->dpp_pkex_bi, |
500ed7f0 JM |
1475 | wpa_s->own_addr, src, |
1476 | wpa_s->dpp_pkex_identifier, | |
1477 | wpa_s->dpp_pkex_code, | |
1478 | buf, len); | |
1479 | if (!wpa_s->dpp_pkex) { | |
1480 | wpa_printf(MSG_DEBUG, | |
1481 | "DPP: Failed to process the request - ignore it"); | |
1482 | return; | |
1483 | } | |
1484 | ||
1485 | msg = wpa_s->dpp_pkex->exchange_resp; | |
1486 | wait_time = wpa_s->max_remain_on_chan; | |
1487 | if (wait_time > 2000) | |
1488 | wait_time = 2000; | |
af48810b JM |
1489 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
1490 | MAC2STR(src), freq, DPP_PA_PKEX_EXCHANGE_RESP); | |
500ed7f0 JM |
1491 | offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr, |
1492 | broadcast, | |
1493 | wpabuf_head(msg), wpabuf_len(msg), | |
1494 | wait_time, wpas_dpp_tx_pkex_status, 0); | |
1495 | } | |
1496 | ||
1497 | ||
1498 | static void | |
1499 | wpas_dpp_rx_pkex_exchange_resp(struct wpa_supplicant *wpa_s, const u8 *src, | |
1500 | const u8 *buf, size_t len, unsigned int freq) | |
1501 | { | |
1502 | struct wpabuf *msg; | |
1503 | unsigned int wait_time; | |
1504 | ||
1505 | wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response from " MACSTR, | |
1506 | MAC2STR(src)); | |
1507 | ||
1508 | /* TODO: Support multiple PKEX codes by iterating over all the enabled | |
1509 | * values here */ | |
1510 | ||
1511 | if (!wpa_s->dpp_pkex || !wpa_s->dpp_pkex->initiator || | |
1512 | wpa_s->dpp_pkex->exchange_done) { | |
1513 | wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session"); | |
1514 | return; | |
1515 | } | |
1516 | ||
1517 | os_memcpy(wpa_s->dpp_pkex->peer_mac, src, ETH_ALEN); | |
1518 | msg = dpp_pkex_rx_exchange_resp(wpa_s->dpp_pkex, buf, len); | |
1519 | if (!msg) { | |
1520 | wpa_printf(MSG_DEBUG, "DPP: Failed to process the response"); | |
1521 | return; | |
1522 | } | |
1523 | ||
1524 | wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Request to " MACSTR, | |
1525 | MAC2STR(src)); | |
1526 | ||
1527 | wait_time = wpa_s->max_remain_on_chan; | |
1528 | if (wait_time > 2000) | |
1529 | wait_time = 2000; | |
af48810b JM |
1530 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
1531 | MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_REQ); | |
500ed7f0 JM |
1532 | offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr, |
1533 | broadcast, | |
1534 | wpabuf_head(msg), wpabuf_len(msg), | |
1535 | wait_time, wpas_dpp_tx_pkex_status, 0); | |
1536 | wpabuf_free(msg); | |
1537 | } | |
1538 | ||
1539 | ||
1540 | static void | |
1541 | wpas_dpp_rx_pkex_commit_reveal_req(struct wpa_supplicant *wpa_s, const u8 *src, | |
4be5bc98 JM |
1542 | const u8 *hdr, const u8 *buf, size_t len, |
1543 | unsigned int freq) | |
500ed7f0 JM |
1544 | { |
1545 | struct wpabuf *msg; | |
1546 | unsigned int wait_time; | |
1547 | struct dpp_pkex *pkex = wpa_s->dpp_pkex; | |
1548 | struct dpp_bootstrap_info *bi; | |
1549 | ||
1550 | wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Request from " MACSTR, | |
1551 | MAC2STR(src)); | |
1552 | ||
1553 | if (!pkex || pkex->initiator || !pkex->exchange_done) { | |
1554 | wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session"); | |
1555 | return; | |
1556 | } | |
1557 | ||
4be5bc98 | 1558 | msg = dpp_pkex_rx_commit_reveal_req(pkex, hdr, buf, len); |
500ed7f0 JM |
1559 | if (!msg) { |
1560 | wpa_printf(MSG_DEBUG, "DPP: Failed to process the request"); | |
039b8e73 JM |
1561 | if (pkex->failed) { |
1562 | wpa_printf(MSG_DEBUG, "DPP: Terminate PKEX exchange"); | |
29ab69e4 JM |
1563 | if (pkex->t > pkex->own_bi->pkex_t) |
1564 | pkex->own_bi->pkex_t = pkex->t; | |
039b8e73 JM |
1565 | dpp_pkex_free(wpa_s->dpp_pkex); |
1566 | wpa_s->dpp_pkex = NULL; | |
1567 | } | |
500ed7f0 JM |
1568 | return; |
1569 | } | |
1570 | ||
1571 | wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Response to " | |
1572 | MACSTR, MAC2STR(src)); | |
1573 | ||
1574 | wait_time = wpa_s->max_remain_on_chan; | |
1575 | if (wait_time > 2000) | |
1576 | wait_time = 2000; | |
af48810b JM |
1577 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
1578 | MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_RESP); | |
500ed7f0 JM |
1579 | offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr, |
1580 | broadcast, | |
1581 | wpabuf_head(msg), wpabuf_len(msg), | |
1582 | wait_time, wpas_dpp_tx_pkex_status, 0); | |
1583 | wpabuf_free(msg); | |
1584 | ||
1585 | bi = os_zalloc(sizeof(*bi)); | |
1586 | if (!bi) | |
1587 | return; | |
1588 | bi->id = wpas_dpp_next_id(wpa_s); | |
1589 | bi->type = DPP_BOOTSTRAP_PKEX; | |
1590 | os_memcpy(bi->mac_addr, src, ETH_ALEN); | |
1591 | bi->num_freq = 1; | |
1592 | bi->freq[0] = freq; | |
1593 | bi->curve = pkex->own_bi->curve; | |
1594 | bi->pubkey = pkex->peer_bootstrap_key; | |
1595 | pkex->peer_bootstrap_key = NULL; | |
1596 | dpp_pkex_free(pkex); | |
1597 | wpa_s->dpp_pkex = NULL; | |
1598 | if (dpp_bootstrap_key_hash(bi) < 0) { | |
1599 | dpp_bootstrap_info_free(bi); | |
1600 | return; | |
1601 | } | |
1602 | dl_list_add(&wpa_s->dpp_bootstrap, &bi->list); | |
1603 | } | |
1604 | ||
1605 | ||
1606 | static void | |
1607 | wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src, | |
4be5bc98 | 1608 | const u8 *hdr, const u8 *buf, size_t len, |
500ed7f0 JM |
1609 | unsigned int freq) |
1610 | { | |
1611 | int res; | |
1612 | struct dpp_bootstrap_info *bi, *own_bi; | |
1613 | struct dpp_pkex *pkex = wpa_s->dpp_pkex; | |
1614 | char cmd[500]; | |
1615 | ||
1616 | wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Response from " MACSTR, | |
1617 | MAC2STR(src)); | |
1618 | ||
1619 | if (!pkex || !pkex->initiator || !pkex->exchange_done) { | |
1620 | wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session"); | |
1621 | return; | |
1622 | } | |
1623 | ||
4be5bc98 | 1624 | res = dpp_pkex_rx_commit_reveal_resp(pkex, hdr, buf, len); |
500ed7f0 JM |
1625 | if (res < 0) { |
1626 | wpa_printf(MSG_DEBUG, "DPP: Failed to process the response"); | |
1627 | return; | |
1628 | } | |
1629 | ||
1630 | own_bi = pkex->own_bi; | |
1631 | ||
1632 | bi = os_zalloc(sizeof(*bi)); | |
1633 | if (!bi) | |
1634 | return; | |
1635 | bi->id = wpas_dpp_next_id(wpa_s); | |
1636 | bi->type = DPP_BOOTSTRAP_PKEX; | |
1637 | os_memcpy(bi->mac_addr, src, ETH_ALEN); | |
1638 | bi->num_freq = 1; | |
1639 | bi->freq[0] = freq; | |
1640 | bi->curve = own_bi->curve; | |
1641 | bi->pubkey = pkex->peer_bootstrap_key; | |
1642 | pkex->peer_bootstrap_key = NULL; | |
1643 | dpp_pkex_free(pkex); | |
1644 | wpa_s->dpp_pkex = NULL; | |
1645 | if (dpp_bootstrap_key_hash(bi) < 0) { | |
1646 | dpp_bootstrap_info_free(bi); | |
1647 | return; | |
1648 | } | |
1649 | dl_list_add(&wpa_s->dpp_bootstrap, &bi->list); | |
1650 | ||
1651 | os_snprintf(cmd, sizeof(cmd), " peer=%u %s", | |
1652 | bi->id, | |
1653 | wpa_s->dpp_pkex_auth_cmd ? wpa_s->dpp_pkex_auth_cmd : ""); | |
1654 | wpa_printf(MSG_DEBUG, | |
1655 | "DPP: Start authentication after PKEX with parameters: %s", | |
1656 | cmd); | |
1657 | if (wpas_dpp_auth_init(wpa_s, cmd) < 0) { | |
1658 | wpa_printf(MSG_DEBUG, | |
1659 | "DPP: Authentication initialization failed"); | |
1660 | return; | |
1661 | } | |
1662 | } | |
1663 | ||
1664 | ||
30d27b04 JM |
1665 | void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src, |
1666 | const u8 *buf, size_t len, unsigned int freq) | |
1667 | { | |
8c19ea3f | 1668 | u8 crypto_suite; |
30d27b04 | 1669 | enum dpp_public_action_frame_type type; |
dc4d271c | 1670 | const u8 *hdr; |
29ab69e4 | 1671 | unsigned int pkex_t; |
30d27b04 | 1672 | |
dc4d271c JM |
1673 | if (len < DPP_HDR_LEN) |
1674 | return; | |
1675 | if (WPA_GET_BE24(buf) != OUI_WFA || buf[3] != DPP_OUI_TYPE) | |
30d27b04 | 1676 | return; |
dc4d271c JM |
1677 | hdr = buf; |
1678 | buf += 4; | |
1679 | len -= 4; | |
8c19ea3f JM |
1680 | crypto_suite = *buf++; |
1681 | type = *buf++; | |
1682 | len -= 2; | |
30d27b04 JM |
1683 | |
1684 | wpa_printf(MSG_DEBUG, | |
8c19ea3f | 1685 | "DPP: Received DPP Public Action frame crypto suite %u type %d from " |
30d27b04 | 1686 | MACSTR " freq=%u", |
8c19ea3f JM |
1687 | crypto_suite, type, MAC2STR(src), freq); |
1688 | if (crypto_suite != 1) { | |
1689 | wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u", | |
1690 | crypto_suite); | |
a7073934 JM |
1691 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR |
1692 | " freq=%u type=%d ignore=unsupported-crypto-suite", | |
1693 | MAC2STR(src), freq, type); | |
8c19ea3f JM |
1694 | return; |
1695 | } | |
30d27b04 | 1696 | wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len); |
a7073934 JM |
1697 | if (dpp_check_attrs(buf, len) < 0) { |
1698 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR | |
1699 | " freq=%u type=%d ignore=invalid-attributes", | |
1700 | MAC2STR(src), freq, type); | |
30d27b04 | 1701 | return; |
a7073934 JM |
1702 | } |
1703 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR " freq=%u type=%d", | |
1704 | MAC2STR(src), freq, type); | |
30d27b04 JM |
1705 | |
1706 | switch (type) { | |
1707 | case DPP_PA_AUTHENTICATION_REQ: | |
dc4d271c | 1708 | wpas_dpp_rx_auth_req(wpa_s, src, hdr, buf, len, freq); |
30d27b04 JM |
1709 | break; |
1710 | case DPP_PA_AUTHENTICATION_RESP: | |
d2709206 | 1711 | wpas_dpp_rx_auth_resp(wpa_s, src, hdr, buf, len, freq); |
30d27b04 JM |
1712 | break; |
1713 | case DPP_PA_AUTHENTICATION_CONF: | |
dc4d271c | 1714 | wpas_dpp_rx_auth_conf(wpa_s, src, hdr, buf, len); |
30d27b04 | 1715 | break; |
a0d5c56f JM |
1716 | case DPP_PA_PEER_DISCOVERY_RESP: |
1717 | wpas_dpp_rx_peer_disc_resp(wpa_s, src, buf, len); | |
1718 | break; | |
500ed7f0 JM |
1719 | case DPP_PA_PKEX_EXCHANGE_REQ: |
1720 | wpas_dpp_rx_pkex_exchange_req(wpa_s, src, buf, len, freq); | |
1721 | break; | |
1722 | case DPP_PA_PKEX_EXCHANGE_RESP: | |
1723 | wpas_dpp_rx_pkex_exchange_resp(wpa_s, src, buf, len, freq); | |
1724 | break; | |
1725 | case DPP_PA_PKEX_COMMIT_REVEAL_REQ: | |
4be5bc98 JM |
1726 | wpas_dpp_rx_pkex_commit_reveal_req(wpa_s, src, hdr, buf, len, |
1727 | freq); | |
500ed7f0 JM |
1728 | break; |
1729 | case DPP_PA_PKEX_COMMIT_REVEAL_RESP: | |
4be5bc98 JM |
1730 | wpas_dpp_rx_pkex_commit_reveal_resp(wpa_s, src, hdr, buf, len, |
1731 | freq); | |
500ed7f0 | 1732 | break; |
30d27b04 JM |
1733 | default: |
1734 | wpa_printf(MSG_DEBUG, | |
1735 | "DPP: Ignored unsupported frame subtype %d", type); | |
1736 | break; | |
1737 | } | |
29ab69e4 JM |
1738 | |
1739 | if (wpa_s->dpp_pkex) | |
1740 | pkex_t = wpa_s->dpp_pkex->t; | |
1741 | else if (wpa_s->dpp_pkex_bi) | |
1742 | pkex_t = wpa_s->dpp_pkex_bi->pkex_t; | |
1743 | else | |
1744 | pkex_t = 0; | |
1745 | if (pkex_t >= PKEX_COUNTER_T_LIMIT) { | |
1746 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_PKEX_T_LIMIT "id=0"); | |
1747 | wpas_dpp_pkex_remove(wpa_s, "*"); | |
1748 | } | |
30d27b04 JM |
1749 | } |
1750 | ||
1751 | ||
461d39af JM |
1752 | static struct wpabuf * |
1753 | wpas_dpp_gas_req_handler(void *ctx, const u8 *sa, const u8 *query, | |
1754 | size_t query_len) | |
1755 | { | |
1756 | struct wpa_supplicant *wpa_s = ctx; | |
1757 | struct dpp_authentication *auth = wpa_s->dpp_auth; | |
1758 | struct wpabuf *resp; | |
1759 | ||
1760 | wpa_printf(MSG_DEBUG, "DPP: GAS request from " MACSTR, | |
1761 | MAC2STR(sa)); | |
1762 | if (!auth || !auth->auth_success || | |
1763 | os_memcmp(sa, auth->peer_mac_addr, ETH_ALEN) != 0) { | |
1764 | wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress"); | |
1765 | return NULL; | |
1766 | } | |
1767 | wpa_hexdump(MSG_DEBUG, | |
1768 | "DPP: Received Configuration Request (GAS Query Request)", | |
1769 | query, query_len); | |
1770 | resp = dpp_conf_req_rx(auth, query, query_len); | |
1771 | if (!resp) | |
1772 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); | |
1773 | return resp; | |
1774 | } | |
1775 | ||
1776 | ||
1777 | static void | |
1778 | wpas_dpp_gas_status_handler(void *ctx, struct wpabuf *resp, int ok) | |
1779 | { | |
1780 | struct wpa_supplicant *wpa_s = ctx; | |
1781 | struct dpp_authentication *auth = wpa_s->dpp_auth; | |
1782 | ||
1783 | if (!auth) { | |
1784 | wpabuf_free(resp); | |
1785 | return; | |
1786 | } | |
1787 | ||
1788 | wpa_printf(MSG_DEBUG, "DPP: Configuration exchange completed (ok=%d)", | |
1789 | ok); | |
1790 | eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); | |
1791 | offchannel_send_action_done(wpa_s); | |
1792 | wpas_dpp_listen_stop(wpa_s); | |
1793 | if (ok) | |
1794 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT); | |
1795 | else | |
1796 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED); | |
1797 | dpp_auth_deinit(wpa_s->dpp_auth); | |
1798 | wpa_s->dpp_auth = NULL; | |
1799 | wpabuf_free(resp); | |
1800 | } | |
1801 | ||
1802 | ||
1803 | static unsigned int wpas_dpp_next_configurator_id(struct wpa_supplicant *wpa_s) | |
1804 | { | |
1805 | struct dpp_configurator *conf; | |
1806 | unsigned int max_id = 0; | |
1807 | ||
1808 | dl_list_for_each(conf, &wpa_s->dpp_configurator, | |
1809 | struct dpp_configurator, list) { | |
1810 | if (conf->id > max_id) | |
1811 | max_id = conf->id; | |
1812 | } | |
1813 | return max_id + 1; | |
1814 | } | |
1815 | ||
1816 | ||
1817 | int wpas_dpp_configurator_add(struct wpa_supplicant *wpa_s, const char *cmd) | |
1818 | { | |
c77e2ff0 | 1819 | char *curve = NULL; |
461d39af JM |
1820 | char *key = NULL; |
1821 | u8 *privkey = NULL; | |
1822 | size_t privkey_len = 0; | |
1823 | int ret = -1; | |
1824 | struct dpp_configurator *conf = NULL; | |
1825 | ||
461d39af JM |
1826 | curve = get_param(cmd, " curve="); |
1827 | key = get_param(cmd, " key="); | |
1828 | ||
1829 | if (key) { | |
1830 | privkey_len = os_strlen(key) / 2; | |
1831 | privkey = os_malloc(privkey_len); | |
1832 | if (!privkey || | |
1833 | hexstr2bin(key, privkey, privkey_len) < 0) | |
1834 | goto fail; | |
1835 | } | |
1836 | ||
1837 | conf = dpp_keygen_configurator(curve, privkey, privkey_len); | |
1838 | if (!conf) | |
1839 | goto fail; | |
1840 | ||
461d39af JM |
1841 | conf->id = wpas_dpp_next_configurator_id(wpa_s); |
1842 | dl_list_add(&wpa_s->dpp_configurator, &conf->list); | |
1843 | ret = conf->id; | |
1844 | conf = NULL; | |
1845 | fail: | |
1846 | os_free(curve); | |
461d39af JM |
1847 | str_clear_free(key); |
1848 | bin_clear_free(privkey, privkey_len); | |
1849 | dpp_configurator_free(conf); | |
1850 | return ret; | |
1851 | } | |
1852 | ||
1853 | ||
1854 | static int dpp_configurator_del(struct wpa_supplicant *wpa_s, unsigned int id) | |
1855 | { | |
1856 | struct dpp_configurator *conf, *tmp; | |
1857 | int found = 0; | |
1858 | ||
1859 | dl_list_for_each_safe(conf, tmp, &wpa_s->dpp_configurator, | |
1860 | struct dpp_configurator, list) { | |
1861 | if (id && conf->id != id) | |
1862 | continue; | |
1863 | found = 1; | |
1864 | dl_list_del(&conf->list); | |
1865 | dpp_configurator_free(conf); | |
1866 | } | |
1867 | ||
1868 | if (id == 0) | |
1869 | return 0; /* flush succeeds regardless of entries found */ | |
1870 | return found ? 0 : -1; | |
1871 | } | |
1872 | ||
1873 | ||
1874 | int wpas_dpp_configurator_remove(struct wpa_supplicant *wpa_s, const char *id) | |
1875 | { | |
1876 | unsigned int id_val; | |
1877 | ||
1878 | if (os_strcmp(id, "*") == 0) { | |
1879 | id_val = 0; | |
1880 | } else { | |
1881 | id_val = atoi(id); | |
1882 | if (id_val == 0) | |
1883 | return -1; | |
1884 | } | |
1885 | ||
1886 | return dpp_configurator_del(wpa_s, id_val); | |
1887 | } | |
1888 | ||
1889 | ||
f522bb23 JM |
1890 | int wpas_dpp_configurator_sign(struct wpa_supplicant *wpa_s, const char *cmd) |
1891 | { | |
1892 | struct dpp_authentication *auth; | |
1893 | int ret = -1; | |
1894 | char *curve = NULL; | |
1895 | ||
1896 | auth = os_zalloc(sizeof(*auth)); | |
1897 | if (!auth) | |
1898 | return -1; | |
1899 | ||
1900 | curve = get_param(cmd, " curve="); | |
1901 | wpas_dpp_set_configurator(wpa_s, auth, cmd); | |
1902 | ||
1903 | if (dpp_configurator_own_config(auth, curve) == 0) { | |
1904 | wpas_dpp_handle_config_obj(wpa_s, auth); | |
1905 | ret = 0; | |
1906 | } | |
1907 | ||
1908 | dpp_auth_deinit(auth); | |
1909 | os_free(curve); | |
1910 | ||
1911 | return ret; | |
1912 | } | |
1913 | ||
1914 | ||
a0d5c56f JM |
1915 | static void |
1916 | wpas_dpp_tx_introduction_status(struct wpa_supplicant *wpa_s, | |
1917 | unsigned int freq, const u8 *dst, | |
1918 | const u8 *src, const u8 *bssid, | |
1919 | const u8 *data, size_t data_len, | |
1920 | enum offchannel_send_action_result result) | |
1921 | { | |
af48810b JM |
1922 | const char *res_txt; |
1923 | ||
1924 | res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" : | |
1925 | (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" : | |
1926 | "FAILED"); | |
a0d5c56f JM |
1927 | wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR |
1928 | " result=%s (DPP Peer Discovery Request)", | |
af48810b JM |
1929 | freq, MAC2STR(dst), res_txt); |
1930 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR | |
1931 | " freq=%u result=%s", MAC2STR(dst), freq, res_txt); | |
a0d5c56f JM |
1932 | /* TODO: Time out wait for response more quickly in error cases? */ |
1933 | } | |
1934 | ||
1935 | ||
1936 | int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
1937 | struct wpa_bss *bss) | |
1938 | { | |
1939 | struct os_time now; | |
1940 | struct wpabuf *msg; | |
1941 | unsigned int wait_time; | |
1942 | ||
1943 | if (!(ssid->key_mgmt & WPA_KEY_MGMT_DPP) || !bss) | |
1944 | return 0; /* Not using DPP AKM - continue */ | |
1945 | if (wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid)) | |
1946 | return 0; /* PMKSA exists for DPP AKM - continue */ | |
1947 | ||
1948 | if (!ssid->dpp_connector || !ssid->dpp_netaccesskey || | |
1949 | !ssid->dpp_csign) { | |
1950 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR | |
1951 | "missing %s", | |
1952 | !ssid->dpp_connector ? "Connector" : | |
1953 | (!ssid->dpp_netaccesskey ? "netAccessKey" : | |
1954 | "C-sign-key")); | |
1955 | return -1; | |
1956 | } | |
1957 | ||
1958 | os_get_time(&now); | |
1959 | ||
a0d5c56f JM |
1960 | if (ssid->dpp_netaccesskey_expiry && |
1961 | ssid->dpp_netaccesskey_expiry < now.sec) { | |
1962 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR | |
1963 | "netAccessKey expired"); | |
1964 | return -1; | |
1965 | } | |
1966 | ||
1967 | wpa_printf(MSG_DEBUG, | |
1968 | "DPP: Starting network introduction protocol to derive PMKSA for " | |
1969 | MACSTR, MAC2STR(bss->bssid)); | |
1970 | ||
1971 | msg = dpp_alloc_msg(DPP_PA_PEER_DISCOVERY_REQ, | |
85fd8263 | 1972 | 5 + 4 + os_strlen(ssid->dpp_connector)); |
a0d5c56f JM |
1973 | if (!msg) |
1974 | return -1; | |
1975 | ||
85fd8263 JM |
1976 | /* Transaction ID */ |
1977 | wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID); | |
1978 | wpabuf_put_le16(msg, 1); | |
1979 | wpabuf_put_u8(msg, TRANSACTION_ID); | |
1980 | ||
a0d5c56f JM |
1981 | /* DPP Connector */ |
1982 | wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR); | |
1983 | wpabuf_put_le16(msg, os_strlen(ssid->dpp_connector)); | |
1984 | wpabuf_put_str(msg, ssid->dpp_connector); | |
1985 | ||
1986 | /* TODO: Timeout on AP response */ | |
1987 | wait_time = wpa_s->max_remain_on_chan; | |
1988 | if (wait_time > 2000) | |
1989 | wait_time = 2000; | |
af48810b JM |
1990 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d", |
1991 | MAC2STR(bss->bssid), bss->freq, DPP_PA_PEER_DISCOVERY_REQ); | |
a0d5c56f JM |
1992 | offchannel_send_action(wpa_s, bss->freq, bss->bssid, wpa_s->own_addr, |
1993 | broadcast, | |
1994 | wpabuf_head(msg), wpabuf_len(msg), | |
1995 | wait_time, wpas_dpp_tx_introduction_status, 0); | |
1996 | wpabuf_free(msg); | |
1997 | ||
1998 | /* Request this connection attempt to terminate - new one will be | |
1999 | * started when network introduction protocol completes */ | |
2000 | os_memcpy(wpa_s->dpp_intro_bssid, bss->bssid, ETH_ALEN); | |
2001 | wpa_s->dpp_intro_network = ssid; | |
2002 | return 1; | |
2003 | } | |
2004 | ||
2005 | ||
500ed7f0 JM |
2006 | int wpas_dpp_pkex_add(struct wpa_supplicant *wpa_s, const char *cmd) |
2007 | { | |
2008 | struct dpp_bootstrap_info *own_bi; | |
2009 | const char *pos, *end; | |
2010 | unsigned int wait_time; | |
2011 | ||
2012 | pos = os_strstr(cmd, " own="); | |
2013 | if (!pos) | |
2014 | return -1; | |
2015 | pos += 5; | |
2016 | own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos)); | |
2017 | if (!own_bi) { | |
2018 | wpa_printf(MSG_DEBUG, | |
2019 | "DPP: Identified bootstrap info not found"); | |
2020 | return -1; | |
2021 | } | |
2022 | if (own_bi->type != DPP_BOOTSTRAP_PKEX) { | |
2023 | wpa_printf(MSG_DEBUG, | |
2024 | "DPP: Identified bootstrap info not for PKEX"); | |
2025 | return -1; | |
2026 | } | |
2027 | wpa_s->dpp_pkex_bi = own_bi; | |
29ab69e4 | 2028 | own_bi->pkex_t = 0; /* clear pending errors on new code */ |
500ed7f0 JM |
2029 | |
2030 | os_free(wpa_s->dpp_pkex_identifier); | |
2031 | wpa_s->dpp_pkex_identifier = NULL; | |
2032 | pos = os_strstr(cmd, " identifier="); | |
2033 | if (pos) { | |
2034 | pos += 12; | |
2035 | end = os_strchr(pos, ' '); | |
2036 | if (!end) | |
2037 | return -1; | |
2038 | wpa_s->dpp_pkex_identifier = os_malloc(end - pos + 1); | |
2039 | if (!wpa_s->dpp_pkex_identifier) | |
2040 | return -1; | |
2041 | os_memcpy(wpa_s->dpp_pkex_identifier, pos, end - pos); | |
2042 | wpa_s->dpp_pkex_identifier[end - pos] = '\0'; | |
2043 | } | |
2044 | ||
2045 | pos = os_strstr(cmd, " code="); | |
2046 | if (!pos) | |
2047 | return -1; | |
2048 | os_free(wpa_s->dpp_pkex_code); | |
2049 | wpa_s->dpp_pkex_code = os_strdup(pos + 6); | |
2050 | if (!wpa_s->dpp_pkex_code) | |
2051 | return -1; | |
2052 | ||
2053 | if (os_strstr(cmd, " init=1")) { | |
2054 | struct wpabuf *msg; | |
2055 | ||
2056 | wpa_printf(MSG_DEBUG, "DPP: Initiating PKEX"); | |
2057 | dpp_pkex_free(wpa_s->dpp_pkex); | |
219d4c9f | 2058 | wpa_s->dpp_pkex = dpp_pkex_init(wpa_s, own_bi, wpa_s->own_addr, |
500ed7f0 JM |
2059 | wpa_s->dpp_pkex_identifier, |
2060 | wpa_s->dpp_pkex_code); | |
2061 | if (!wpa_s->dpp_pkex) | |
2062 | return -1; | |
2063 | ||
2064 | msg = wpa_s->dpp_pkex->exchange_req; | |
2065 | wait_time = wpa_s->max_remain_on_chan; | |
2066 | if (wait_time > 2000) | |
2067 | wait_time = 2000; | |
2068 | /* TODO: Which channel to use? */ | |
af48810b JM |
2069 | wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR |
2070 | " freq=%u type=%d", | |
2071 | MAC2STR(broadcast), 2437, DPP_PA_PKEX_EXCHANGE_REQ); | |
500ed7f0 JM |
2072 | offchannel_send_action(wpa_s, 2437, broadcast, wpa_s->own_addr, |
2073 | broadcast, | |
2074 | wpabuf_head(msg), wpabuf_len(msg), | |
2075 | wait_time, wpas_dpp_tx_pkex_status, 0); | |
2076 | } | |
2077 | ||
2078 | /* TODO: Support multiple PKEX info entries */ | |
2079 | ||
2080 | os_free(wpa_s->dpp_pkex_auth_cmd); | |
2081 | wpa_s->dpp_pkex_auth_cmd = os_strdup(cmd); | |
2082 | ||
2083 | return 1; | |
2084 | } | |
2085 | ||
2086 | ||
2087 | int wpas_dpp_pkex_remove(struct wpa_supplicant *wpa_s, const char *id) | |
2088 | { | |
2089 | unsigned int id_val; | |
2090 | ||
2091 | if (os_strcmp(id, "*") == 0) { | |
2092 | id_val = 0; | |
2093 | } else { | |
2094 | id_val = atoi(id); | |
2095 | if (id_val == 0) | |
2096 | return -1; | |
2097 | } | |
2098 | ||
2099 | if ((id_val != 0 && id_val != 1) || !wpa_s->dpp_pkex_code) | |
2100 | return -1; | |
2101 | ||
2102 | /* TODO: Support multiple PKEX entries */ | |
2103 | os_free(wpa_s->dpp_pkex_code); | |
2104 | wpa_s->dpp_pkex_code = NULL; | |
2105 | os_free(wpa_s->dpp_pkex_identifier); | |
2106 | wpa_s->dpp_pkex_identifier = NULL; | |
2107 | os_free(wpa_s->dpp_pkex_auth_cmd); | |
2108 | wpa_s->dpp_pkex_auth_cmd = NULL; | |
2109 | wpa_s->dpp_pkex_bi = NULL; | |
2110 | /* TODO: Remove dpp_pkex only if it is for the identified PKEX code */ | |
2111 | dpp_pkex_free(wpa_s->dpp_pkex); | |
2112 | wpa_s->dpp_pkex = NULL; | |
2113 | return 0; | |
2114 | } | |
2115 | ||
2116 | ||
be27e185 JM |
2117 | int wpas_dpp_init(struct wpa_supplicant *wpa_s) |
2118 | { | |
461d39af JM |
2119 | u8 adv_proto_id[7]; |
2120 | ||
2121 | adv_proto_id[0] = WLAN_EID_VENDOR_SPECIFIC; | |
2122 | adv_proto_id[1] = 5; | |
2123 | WPA_PUT_BE24(&adv_proto_id[2], OUI_WFA); | |
2124 | adv_proto_id[5] = DPP_OUI_TYPE; | |
2125 | adv_proto_id[6] = 0x01; | |
2126 | ||
2127 | if (gas_server_register(wpa_s->gas_server, adv_proto_id, | |
2128 | sizeof(adv_proto_id), wpas_dpp_gas_req_handler, | |
2129 | wpas_dpp_gas_status_handler, wpa_s) < 0) | |
2130 | return -1; | |
be27e185 | 2131 | dl_list_init(&wpa_s->dpp_bootstrap); |
461d39af | 2132 | dl_list_init(&wpa_s->dpp_configurator); |
be27e185 JM |
2133 | wpa_s->dpp_init_done = 1; |
2134 | return 0; | |
2135 | } | |
2136 | ||
2137 | ||
2138 | void wpas_dpp_deinit(struct wpa_supplicant *wpa_s) | |
2139 | { | |
461d39af JM |
2140 | #ifdef CONFIG_TESTING_OPTIONS |
2141 | os_free(wpa_s->dpp_config_obj_override); | |
2142 | wpa_s->dpp_config_obj_override = NULL; | |
2143 | os_free(wpa_s->dpp_discovery_override); | |
2144 | wpa_s->dpp_discovery_override = NULL; | |
2145 | os_free(wpa_s->dpp_groups_override); | |
2146 | wpa_s->dpp_groups_override = NULL; | |
461d39af JM |
2147 | wpa_s->dpp_ignore_netaccesskey_mismatch = 0; |
2148 | #endif /* CONFIG_TESTING_OPTIONS */ | |
be27e185 JM |
2149 | if (!wpa_s->dpp_init_done) |
2150 | return; | |
30d27b04 JM |
2151 | eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL); |
2152 | offchannel_send_action_done(wpa_s); | |
2153 | wpas_dpp_listen_stop(wpa_s); | |
be27e185 | 2154 | dpp_bootstrap_del(wpa_s, 0); |
461d39af | 2155 | dpp_configurator_del(wpa_s, 0); |
30d27b04 JM |
2156 | dpp_auth_deinit(wpa_s->dpp_auth); |
2157 | wpa_s->dpp_auth = NULL; | |
500ed7f0 JM |
2158 | wpas_dpp_pkex_remove(wpa_s, "*"); |
2159 | wpa_s->dpp_pkex = NULL; | |
a0d5c56f | 2160 | os_memset(wpa_s->dpp_intro_bssid, 0, ETH_ALEN); |
b65b22d6 JM |
2161 | os_free(wpa_s->dpp_configurator_params); |
2162 | wpa_s->dpp_configurator_params = NULL; | |
be27e185 | 2163 | } |