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DPP: Set group id through DPP_AUTH_INIT or dpp_configurator_params
[thirdparty/hostap.git] / wpa_supplicant / dpp_supplicant.c
1 /*
2 * wpa_supplicant - DPP
3 * Copyright (c) 2017, Qualcomm Atheros, Inc.
4 * Copyright (c) 2018, The Linux Foundation
5 *
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
8 */
9
10 #include "utils/includes.h"
11
12 #include "utils/common.h"
13 #include "utils/eloop.h"
14 #include "common/dpp.h"
15 #include "common/gas.h"
16 #include "common/gas_server.h"
17 #include "rsn_supp/wpa.h"
18 #include "rsn_supp/pmksa_cache.h"
19 #include "wpa_supplicant_i.h"
20 #include "config.h"
21 #include "driver_i.h"
22 #include "offchannel.h"
23 #include "gas_query.h"
24 #include "bss.h"
25 #include "scan.h"
26 #include "notify.h"
27 #include "dpp_supplicant.h"
28
29
30 static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
31 unsigned int freq);
32 static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx);
33 static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator);
34 static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s,
35 unsigned int freq, const u8 *dst,
36 const u8 *src, const u8 *bssid,
37 const u8 *data, size_t data_len,
38 enum offchannel_send_action_result result);
39 static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx);
40 static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s);
41 static void
42 wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
43 unsigned int freq, const u8 *dst,
44 const u8 *src, const u8 *bssid,
45 const u8 *data, size_t data_len,
46 enum offchannel_send_action_result result);
47
48 static const u8 broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
49
50 /* Use a hardcoded Transaction ID 1 in Peer Discovery frames since there is only
51 * a single transaction in progress at any point in time. */
52 static const u8 TRANSACTION_ID = 1;
53
54
55 static struct dpp_configurator *
56 dpp_configurator_get_id(struct wpa_supplicant *wpa_s, unsigned int id)
57 {
58 struct dpp_configurator *conf;
59
60 dl_list_for_each(conf, &wpa_s->dpp_configurator,
61 struct dpp_configurator, list) {
62 if (conf->id == id)
63 return conf;
64 }
65 return NULL;
66 }
67
68
69 static unsigned int wpas_dpp_next_id(struct wpa_supplicant *wpa_s)
70 {
71 struct dpp_bootstrap_info *bi;
72 unsigned int max_id = 0;
73
74 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
75 list) {
76 if (bi->id > max_id)
77 max_id = bi->id;
78 }
79 return max_id + 1;
80 }
81
82
83 /**
84 * wpas_dpp_qr_code - Parse and add DPP bootstrapping info from a QR Code
85 * @wpa_s: Pointer to wpa_supplicant data
86 * @cmd: DPP URI read from a QR Code
87 * Returns: Identifier of the stored info or -1 on failure
88 */
89 int wpas_dpp_qr_code(struct wpa_supplicant *wpa_s, const char *cmd)
90 {
91 struct dpp_bootstrap_info *bi;
92 struct dpp_authentication *auth = wpa_s->dpp_auth;
93
94 bi = dpp_parse_qr_code(cmd);
95 if (!bi)
96 return -1;
97
98 bi->id = wpas_dpp_next_id(wpa_s);
99 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
100
101 if (auth && auth->response_pending &&
102 dpp_notify_new_qr_code(auth, bi) == 1) {
103 wpa_printf(MSG_DEBUG,
104 "DPP: Sending out pending authentication response");
105 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
106 " freq=%u type=%d",
107 MAC2STR(auth->peer_mac_addr), auth->curr_freq,
108 DPP_PA_AUTHENTICATION_RESP);
109 offchannel_send_action(wpa_s, auth->curr_freq,
110 auth->peer_mac_addr, wpa_s->own_addr,
111 broadcast,
112 wpabuf_head(auth->resp_msg),
113 wpabuf_len(auth->resp_msg),
114 500, wpas_dpp_tx_status, 0);
115 }
116
117 return bi->id;
118 }
119
120
121 static char * get_param(const char *cmd, const char *param)
122 {
123 const char *pos, *end;
124 char *val;
125 size_t len;
126
127 pos = os_strstr(cmd, param);
128 if (!pos)
129 return NULL;
130
131 pos += os_strlen(param);
132 end = os_strchr(pos, ' ');
133 if (end)
134 len = end - pos;
135 else
136 len = os_strlen(pos);
137 val = os_malloc(len + 1);
138 if (!val)
139 return NULL;
140 os_memcpy(val, pos, len);
141 val[len] = '\0';
142 return val;
143 }
144
145
146 int wpas_dpp_bootstrap_gen(struct wpa_supplicant *wpa_s, const char *cmd)
147 {
148 char *chan = NULL, *mac = NULL, *info = NULL, *pk = NULL, *curve = NULL;
149 char *key = NULL;
150 u8 *privkey = NULL;
151 size_t privkey_len = 0;
152 size_t len;
153 int ret = -1;
154 struct dpp_bootstrap_info *bi;
155
156 bi = os_zalloc(sizeof(*bi));
157 if (!bi)
158 goto fail;
159
160 if (os_strstr(cmd, "type=qrcode"))
161 bi->type = DPP_BOOTSTRAP_QR_CODE;
162 else if (os_strstr(cmd, "type=pkex"))
163 bi->type = DPP_BOOTSTRAP_PKEX;
164 else
165 goto fail;
166
167 chan = get_param(cmd, " chan=");
168 mac = get_param(cmd, " mac=");
169 info = get_param(cmd, " info=");
170 curve = get_param(cmd, " curve=");
171 key = get_param(cmd, " key=");
172
173 if (key) {
174 privkey_len = os_strlen(key) / 2;
175 privkey = os_malloc(privkey_len);
176 if (!privkey ||
177 hexstr2bin(key, privkey, privkey_len) < 0)
178 goto fail;
179 }
180
181 pk = dpp_keygen(bi, curve, privkey, privkey_len);
182 if (!pk)
183 goto fail;
184
185 len = 4; /* "DPP:" */
186 if (chan) {
187 if (dpp_parse_uri_chan_list(bi, chan) < 0)
188 goto fail;
189 len += 3 + os_strlen(chan); /* C:...; */
190 }
191 if (mac) {
192 if (dpp_parse_uri_mac(bi, mac) < 0)
193 goto fail;
194 len += 3 + os_strlen(mac); /* M:...; */
195 }
196 if (info) {
197 if (dpp_parse_uri_info(bi, info) < 0)
198 goto fail;
199 len += 3 + os_strlen(info); /* I:...; */
200 }
201 len += 4 + os_strlen(pk);
202 bi->uri = os_malloc(len + 1);
203 if (!bi->uri)
204 goto fail;
205 os_snprintf(bi->uri, len + 1, "DPP:%s%s%s%s%s%s%s%s%sK:%s;;",
206 chan ? "C:" : "", chan ? chan : "", chan ? ";" : "",
207 mac ? "M:" : "", mac ? mac : "", mac ? ";" : "",
208 info ? "I:" : "", info ? info : "", info ? ";" : "",
209 pk);
210 bi->id = wpas_dpp_next_id(wpa_s);
211 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
212 ret = bi->id;
213 bi = NULL;
214 fail:
215 os_free(curve);
216 os_free(pk);
217 os_free(chan);
218 os_free(mac);
219 os_free(info);
220 str_clear_free(key);
221 bin_clear_free(privkey, privkey_len);
222 dpp_bootstrap_info_free(bi);
223 return ret;
224 }
225
226
227 static struct dpp_bootstrap_info *
228 dpp_bootstrap_get_id(struct wpa_supplicant *wpa_s, unsigned int id)
229 {
230 struct dpp_bootstrap_info *bi;
231
232 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
233 list) {
234 if (bi->id == id)
235 return bi;
236 }
237 return NULL;
238 }
239
240
241 static int dpp_bootstrap_del(struct wpa_supplicant *wpa_s, unsigned int id)
242 {
243 struct dpp_bootstrap_info *bi, *tmp;
244 int found = 0;
245
246 dl_list_for_each_safe(bi, tmp, &wpa_s->dpp_bootstrap,
247 struct dpp_bootstrap_info, list) {
248 if (id && bi->id != id)
249 continue;
250 found = 1;
251 dl_list_del(&bi->list);
252 dpp_bootstrap_info_free(bi);
253 }
254
255 if (id == 0)
256 return 0; /* flush succeeds regardless of entries found */
257 return found ? 0 : -1;
258 }
259
260
261 int wpas_dpp_bootstrap_remove(struct wpa_supplicant *wpa_s, const char *id)
262 {
263 unsigned int id_val;
264
265 if (os_strcmp(id, "*") == 0) {
266 id_val = 0;
267 } else {
268 id_val = atoi(id);
269 if (id_val == 0)
270 return -1;
271 }
272
273 return dpp_bootstrap_del(wpa_s, id_val);
274 }
275
276
277 const char * wpas_dpp_bootstrap_get_uri(struct wpa_supplicant *wpa_s,
278 unsigned int id)
279 {
280 struct dpp_bootstrap_info *bi;
281
282 bi = dpp_bootstrap_get_id(wpa_s, id);
283 if (!bi)
284 return NULL;
285 return bi->uri;
286 }
287
288
289 int wpas_dpp_bootstrap_info(struct wpa_supplicant *wpa_s, int id,
290 char *reply, int reply_size)
291 {
292 struct dpp_bootstrap_info *bi;
293
294 bi = dpp_bootstrap_get_id(wpa_s, id);
295 if (!bi)
296 return -1;
297 return os_snprintf(reply, reply_size, "type=%s\n"
298 "mac_addr=" MACSTR "\n"
299 "info=%s\n"
300 "num_freq=%u\n"
301 "curve=%s\n",
302 dpp_bootstrap_type_txt(bi->type),
303 MAC2STR(bi->mac_addr),
304 bi->info ? bi->info : "",
305 bi->num_freq,
306 bi->curve->name);
307 }
308
309
310 static void wpas_dpp_auth_resp_retry_timeout(void *eloop_ctx, void *timeout_ctx)
311 {
312 struct wpa_supplicant *wpa_s = eloop_ctx;
313 struct dpp_authentication *auth = wpa_s->dpp_auth;
314
315 if (!auth || !auth->resp_msg)
316 return;
317
318 wpa_printf(MSG_DEBUG,
319 "DPP: Retry Authentication Response after timeout");
320 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
321 " freq=%u type=%d",
322 MAC2STR(auth->peer_mac_addr), auth->curr_freq,
323 DPP_PA_AUTHENTICATION_RESP);
324 offchannel_send_action(wpa_s, auth->curr_freq, auth->peer_mac_addr,
325 wpa_s->own_addr, broadcast,
326 wpabuf_head(auth->resp_msg),
327 wpabuf_len(auth->resp_msg),
328 500, wpas_dpp_tx_status, 0);
329 }
330
331
332 static void wpas_dpp_auth_resp_retry(struct wpa_supplicant *wpa_s)
333 {
334 struct dpp_authentication *auth = wpa_s->dpp_auth;
335 unsigned int wait_time, max_tries;
336
337 if (!auth || !auth->resp_msg)
338 return;
339
340 if (wpa_s->dpp_resp_max_tries)
341 max_tries = wpa_s->dpp_resp_max_tries;
342 else
343 max_tries = 5;
344 auth->auth_resp_tries++;
345 if (auth->auth_resp_tries >= max_tries) {
346 wpa_printf(MSG_INFO, "DPP: No confirm received from initiator - stopping exchange");
347 offchannel_send_action_done(wpa_s);
348 dpp_auth_deinit(wpa_s->dpp_auth);
349 wpa_s->dpp_auth = NULL;
350 return;
351 }
352
353 if (wpa_s->dpp_resp_retry_time)
354 wait_time = wpa_s->dpp_resp_retry_time;
355 else
356 wait_time = 1000;
357 wpa_printf(MSG_DEBUG,
358 "DPP: Schedule retransmission of Authentication Response frame in %u ms",
359 wait_time);
360 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
361 eloop_register_timeout(wait_time / 1000,
362 (wait_time % 1000) * 1000,
363 wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
364 }
365
366
367 static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s,
368 unsigned int freq, const u8 *dst,
369 const u8 *src, const u8 *bssid,
370 const u8 *data, size_t data_len,
371 enum offchannel_send_action_result result)
372 {
373 const char *res_txt;
374 struct dpp_authentication *auth = wpa_s->dpp_auth;
375
376 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
377 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
378 "FAILED");
379 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
380 " result=%s", freq, MAC2STR(dst), res_txt);
381 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
382 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
383
384 if (!wpa_s->dpp_auth) {
385 wpa_printf(MSG_DEBUG,
386 "DPP: Ignore TX status since there is no ongoing authentication exchange");
387 return;
388 }
389
390 if (wpa_s->dpp_auth->remove_on_tx_status) {
391 wpa_printf(MSG_DEBUG,
392 "DPP: Terminate authentication exchange due to an earlier error");
393 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
394 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
395 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
396 NULL);
397 offchannel_send_action_done(wpa_s);
398 dpp_auth_deinit(wpa_s->dpp_auth);
399 wpa_s->dpp_auth = NULL;
400 return;
401 }
402
403 if (wpa_s->dpp_auth_ok_on_ack)
404 wpas_dpp_auth_success(wpa_s, 1);
405
406 if (!is_broadcast_ether_addr(dst) &&
407 result != OFFCHANNEL_SEND_ACTION_SUCCESS) {
408 wpa_printf(MSG_DEBUG,
409 "DPP: Unicast DPP Action frame was not ACKed");
410 if (auth->waiting_auth_resp) {
411 /* In case of DPP Authentication Request frame, move to
412 * the next channel immediately. */
413 offchannel_send_action_done(wpa_s);
414 wpas_dpp_auth_init_next(wpa_s);
415 return;
416 }
417 if (auth->waiting_auth_conf) {
418 wpas_dpp_auth_resp_retry(wpa_s);
419 return;
420 }
421 }
422
423 if (!is_broadcast_ether_addr(dst) && auth->waiting_auth_resp &&
424 result == OFFCHANNEL_SEND_ACTION_SUCCESS) {
425 /* Allow timeout handling to stop iteration if no response is
426 * received from a peer that has ACKed a request. */
427 auth->auth_req_ack = 1;
428 }
429
430 if (!wpa_s->dpp_auth_ok_on_ack && wpa_s->dpp_auth->neg_freq > 0 &&
431 wpa_s->dpp_auth->curr_freq != wpa_s->dpp_auth->neg_freq) {
432 wpa_printf(MSG_DEBUG,
433 "DPP: Move from curr_freq %u MHz to neg_freq %u MHz for response",
434 wpa_s->dpp_auth->curr_freq,
435 wpa_s->dpp_auth->neg_freq);
436 offchannel_send_action_done(wpa_s);
437 wpas_dpp_listen_start(wpa_s, wpa_s->dpp_auth->neg_freq);
438 }
439
440 if (wpa_s->dpp_auth_ok_on_ack)
441 wpa_s->dpp_auth_ok_on_ack = 0;
442 }
443
444
445 static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx)
446 {
447 struct wpa_supplicant *wpa_s = eloop_ctx;
448 struct dpp_authentication *auth = wpa_s->dpp_auth;
449 unsigned int freq;
450 struct os_reltime now, diff;
451 unsigned int wait_time, diff_ms;
452
453 if (!auth || !auth->waiting_auth_resp)
454 return;
455
456 wait_time = wpa_s->dpp_resp_wait_time ?
457 wpa_s->dpp_resp_wait_time : 2000;
458 os_get_reltime(&now);
459 os_reltime_sub(&now, &wpa_s->dpp_last_init, &diff);
460 diff_ms = diff.sec * 1000 + diff.usec / 1000;
461 wpa_printf(MSG_DEBUG,
462 "DPP: Reply wait timeout - wait_time=%u diff_ms=%u",
463 wait_time, diff_ms);
464
465 if (auth->auth_req_ack && diff_ms >= wait_time) {
466 /* Peer ACK'ed Authentication Request frame, but did not reply
467 * with Authentication Response frame within two seconds. */
468 wpa_printf(MSG_INFO,
469 "DPP: No response received from responder - stopping initiation attempt");
470 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
471 offchannel_send_action_done(wpa_s);
472 wpas_dpp_listen_stop(wpa_s);
473 dpp_auth_deinit(auth);
474 wpa_s->dpp_auth = NULL;
475 return;
476 }
477
478 if (diff_ms >= wait_time) {
479 /* Authentication Request frame was not ACK'ed and no reply
480 * was receiving within two seconds. */
481 wpa_printf(MSG_DEBUG,
482 "DPP: Continue Initiator channel iteration");
483 offchannel_send_action_done(wpa_s);
484 wpas_dpp_listen_stop(wpa_s);
485 wpas_dpp_auth_init_next(wpa_s);
486 return;
487 }
488
489 /* Driver did not support 2000 ms long wait_time with TX command, so
490 * schedule listen operation to continue waiting for the response.
491 *
492 * DPP listen operations continue until stopped, so simply schedule a
493 * new call to this function at the point when the two second reply
494 * wait has expired. */
495 wait_time -= diff_ms;
496
497 freq = auth->curr_freq;
498 if (auth->neg_freq > 0)
499 freq = auth->neg_freq;
500 wpa_printf(MSG_DEBUG,
501 "DPP: Continue reply wait on channel %u MHz for %u ms",
502 freq, wait_time);
503 wpa_s->dpp_in_response_listen = 1;
504 wpas_dpp_listen_start(wpa_s, freq);
505
506 eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
507 wpas_dpp_reply_wait_timeout, wpa_s, NULL);
508 }
509
510
511 static void wpas_dpp_set_testing_options(struct wpa_supplicant *wpa_s,
512 struct dpp_authentication *auth)
513 {
514 #ifdef CONFIG_TESTING_OPTIONS
515 if (wpa_s->dpp_config_obj_override)
516 auth->config_obj_override =
517 os_strdup(wpa_s->dpp_config_obj_override);
518 if (wpa_s->dpp_discovery_override)
519 auth->discovery_override =
520 os_strdup(wpa_s->dpp_discovery_override);
521 if (wpa_s->dpp_groups_override)
522 auth->groups_override =
523 os_strdup(wpa_s->dpp_groups_override);
524 auth->ignore_netaccesskey_mismatch =
525 wpa_s->dpp_ignore_netaccesskey_mismatch;
526 #endif /* CONFIG_TESTING_OPTIONS */
527 }
528
529
530 static void wpas_dpp_set_configurator(struct wpa_supplicant *wpa_s,
531 struct dpp_authentication *auth,
532 const char *cmd)
533 {
534 const char *pos, *end;
535 struct dpp_configuration *conf_sta = NULL, *conf_ap = NULL;
536 struct dpp_configurator *conf = NULL;
537 u8 ssid[32] = { "test" };
538 size_t ssid_len = 4;
539 char pass[64] = { };
540 size_t pass_len = 0;
541 u8 psk[PMK_LEN];
542 int psk_set = 0;
543 char *group_id = NULL;
544
545 if (!cmd)
546 return;
547
548 wpa_printf(MSG_DEBUG, "DPP: Set configurator parameters: %s", cmd);
549 pos = os_strstr(cmd, " ssid=");
550 if (pos) {
551 pos += 6;
552 end = os_strchr(pos, ' ');
553 ssid_len = end ? (size_t) (end - pos) : os_strlen(pos);
554 ssid_len /= 2;
555 if (ssid_len > sizeof(ssid) ||
556 hexstr2bin(pos, ssid, ssid_len) < 0)
557 goto fail;
558 }
559
560 pos = os_strstr(cmd, " pass=");
561 if (pos) {
562 pos += 6;
563 end = os_strchr(pos, ' ');
564 pass_len = end ? (size_t) (end - pos) : os_strlen(pos);
565 pass_len /= 2;
566 if (pass_len > sizeof(pass) - 1 || pass_len < 8 ||
567 hexstr2bin(pos, (u8 *) pass, pass_len) < 0)
568 goto fail;
569 }
570
571 pos = os_strstr(cmd, " psk=");
572 if (pos) {
573 pos += 5;
574 if (hexstr2bin(pos, psk, PMK_LEN) < 0)
575 goto fail;
576 psk_set = 1;
577 }
578
579 pos = os_strstr(cmd, " group_id=");
580 if (pos) {
581 size_t group_id_len;
582
583 pos += 10;
584 end = os_strchr(pos, ' ');
585 group_id_len = end ? (size_t) (end - pos) : os_strlen(pos);
586 group_id = os_malloc(group_id_len + 1);
587 if (!group_id)
588 goto fail;
589 os_memcpy(group_id, pos, group_id_len);
590 group_id[group_id_len] = '\0';
591 }
592
593 if (os_strstr(cmd, " conf=sta-")) {
594 conf_sta = os_zalloc(sizeof(struct dpp_configuration));
595 if (!conf_sta)
596 goto fail;
597 os_memcpy(conf_sta->ssid, ssid, ssid_len);
598 conf_sta->ssid_len = ssid_len;
599 if (os_strstr(cmd, " conf=sta-psk") ||
600 os_strstr(cmd, " conf=sta-sae") ||
601 os_strstr(cmd, " conf=sta-psk-sae")) {
602 if (os_strstr(cmd, " conf=sta-psk-sae"))
603 conf_sta->akm = DPP_AKM_PSK_SAE;
604 else if (os_strstr(cmd, " conf=sta-sae"))
605 conf_sta->akm = DPP_AKM_SAE;
606 else
607 conf_sta->akm = DPP_AKM_PSK;
608 if (psk_set) {
609 os_memcpy(conf_sta->psk, psk, PMK_LEN);
610 } else {
611 conf_sta->passphrase = os_strdup(pass);
612 if (!conf_sta->passphrase)
613 goto fail;
614 }
615 } else if (os_strstr(cmd, " conf=sta-dpp")) {
616 conf_sta->akm = DPP_AKM_DPP;
617 } else {
618 goto fail;
619 }
620 if (os_strstr(cmd, " group_id=")) {
621 conf_sta->group_id = group_id;
622 group_id = NULL;
623 }
624 }
625
626 if (os_strstr(cmd, " conf=ap-")) {
627 conf_ap = os_zalloc(sizeof(struct dpp_configuration));
628 if (!conf_ap)
629 goto fail;
630 os_memcpy(conf_ap->ssid, ssid, ssid_len);
631 conf_ap->ssid_len = ssid_len;
632 if (os_strstr(cmd, " conf=ap-psk") ||
633 os_strstr(cmd, " conf=ap-sae") ||
634 os_strstr(cmd, " conf=ap-psk-sae")) {
635 if (os_strstr(cmd, " conf=ap-psk-sae"))
636 conf_ap->akm = DPP_AKM_PSK_SAE;
637 else if (os_strstr(cmd, " conf=ap-sae"))
638 conf_ap->akm = DPP_AKM_SAE;
639 else
640 conf_ap->akm = DPP_AKM_PSK;
641 if (psk_set) {
642 os_memcpy(conf_ap->psk, psk, PMK_LEN);
643 } else {
644 conf_ap->passphrase = os_strdup(pass);
645 if (!conf_ap->passphrase)
646 goto fail;
647 }
648 } else if (os_strstr(cmd, " conf=ap-dpp")) {
649 conf_ap->akm = DPP_AKM_DPP;
650 } else {
651 goto fail;
652 }
653 if (os_strstr(cmd, " group_id=")) {
654 conf_ap->group_id = group_id;
655 group_id = NULL;
656 }
657 }
658
659 pos = os_strstr(cmd, " expiry=");
660 if (pos) {
661 long int val;
662
663 pos += 8;
664 val = strtol(pos, NULL, 0);
665 if (val <= 0)
666 goto fail;
667 if (conf_sta)
668 conf_sta->netaccesskey_expiry = val;
669 if (conf_ap)
670 conf_ap->netaccesskey_expiry = val;
671 }
672
673 pos = os_strstr(cmd, " configurator=");
674 if (pos) {
675 pos += 14;
676 conf = dpp_configurator_get_id(wpa_s, atoi(pos));
677 if (!conf) {
678 wpa_printf(MSG_INFO,
679 "DPP: Could not find the specified configurator");
680 goto fail;
681 }
682 }
683 auth->conf_sta = conf_sta;
684 auth->conf_ap = conf_ap;
685 auth->conf = conf;
686 os_free(group_id);
687 return;
688
689 fail:
690 wpa_printf(MSG_DEBUG, "DPP: Failed to set configurator parameters");
691 dpp_configuration_free(conf_sta);
692 dpp_configuration_free(conf_ap);
693 os_free(group_id);
694 }
695
696
697 static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx)
698 {
699 struct wpa_supplicant *wpa_s = eloop_ctx;
700
701 if (!wpa_s->dpp_auth)
702 return;
703 wpa_printf(MSG_DEBUG, "DPP: Retry initiation after timeout");
704 wpas_dpp_auth_init_next(wpa_s);
705 }
706
707
708 static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s)
709 {
710 struct dpp_authentication *auth = wpa_s->dpp_auth;
711 const u8 *dst;
712 unsigned int wait_time, max_wait_time, freq, max_tries, used;
713 struct os_reltime now, diff;
714
715 wpa_s->dpp_in_response_listen = 0;
716 if (!auth)
717 return -1;
718
719 if (auth->freq_idx == 0)
720 os_get_reltime(&wpa_s->dpp_init_iter_start);
721
722 if (auth->freq_idx >= auth->num_freq) {
723 auth->num_freq_iters++;
724 if (wpa_s->dpp_init_max_tries)
725 max_tries = wpa_s->dpp_init_max_tries;
726 else
727 max_tries = 5;
728 if (auth->num_freq_iters >= max_tries || auth->auth_req_ack) {
729 wpa_printf(MSG_INFO,
730 "DPP: No response received from responder - stopping initiation attempt");
731 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
732 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout,
733 wpa_s, NULL);
734 offchannel_send_action_done(wpa_s);
735 dpp_auth_deinit(wpa_s->dpp_auth);
736 wpa_s->dpp_auth = NULL;
737 return -1;
738 }
739 auth->freq_idx = 0;
740 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
741 if (wpa_s->dpp_init_retry_time)
742 wait_time = wpa_s->dpp_init_retry_time;
743 else
744 wait_time = 10000;
745 os_get_reltime(&now);
746 os_reltime_sub(&now, &wpa_s->dpp_init_iter_start, &diff);
747 used = diff.sec * 1000 + diff.usec / 1000;
748 if (used > wait_time)
749 wait_time = 0;
750 else
751 wait_time -= used;
752 wpa_printf(MSG_DEBUG, "DPP: Next init attempt in %u ms",
753 wait_time);
754 eloop_register_timeout(wait_time / 1000,
755 (wait_time % 1000) * 1000,
756 wpas_dpp_init_timeout, wpa_s,
757 NULL);
758 return 0;
759 }
760 freq = auth->freq[auth->freq_idx++];
761 auth->curr_freq = freq;
762
763 if (is_zero_ether_addr(auth->peer_bi->mac_addr))
764 dst = broadcast;
765 else
766 dst = auth->peer_bi->mac_addr;
767 wpa_s->dpp_auth_ok_on_ack = 0;
768 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
769 wait_time = wpa_s->max_remain_on_chan;
770 max_wait_time = wpa_s->dpp_resp_wait_time ?
771 wpa_s->dpp_resp_wait_time : 2000;
772 if (wait_time > max_wait_time)
773 wait_time = max_wait_time;
774 wait_time += 10; /* give the driver some extra time to complete */
775 eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
776 wpas_dpp_reply_wait_timeout,
777 wpa_s, NULL);
778 wait_time -= 10;
779 if (auth->neg_freq > 0 && freq != auth->neg_freq) {
780 wpa_printf(MSG_DEBUG,
781 "DPP: Initiate on %u MHz and move to neg_freq %u MHz for response",
782 freq, auth->neg_freq);
783 }
784 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
785 MAC2STR(dst), freq, DPP_PA_AUTHENTICATION_REQ);
786 auth->auth_req_ack = 0;
787 os_get_reltime(&wpa_s->dpp_last_init);
788 return offchannel_send_action(wpa_s, freq, dst,
789 wpa_s->own_addr, broadcast,
790 wpabuf_head(auth->req_msg),
791 wpabuf_len(auth->req_msg),
792 wait_time, wpas_dpp_tx_status, 0);
793 }
794
795
796 int wpas_dpp_auth_init(struct wpa_supplicant *wpa_s, const char *cmd)
797 {
798 const char *pos;
799 struct dpp_bootstrap_info *peer_bi, *own_bi = NULL;
800 u8 allowed_roles = DPP_CAPAB_CONFIGURATOR;
801 unsigned int neg_freq = 0;
802
803 wpa_s->dpp_gas_client = 0;
804
805 pos = os_strstr(cmd, " peer=");
806 if (!pos)
807 return -1;
808 pos += 6;
809 peer_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
810 if (!peer_bi) {
811 wpa_printf(MSG_INFO,
812 "DPP: Could not find bootstrapping info for the identified peer");
813 return -1;
814 }
815
816 pos = os_strstr(cmd, " own=");
817 if (pos) {
818 pos += 5;
819 own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
820 if (!own_bi) {
821 wpa_printf(MSG_INFO,
822 "DPP: Could not find bootstrapping info for the identified local entry");
823 return -1;
824 }
825
826 if (peer_bi->curve != own_bi->curve) {
827 wpa_printf(MSG_INFO,
828 "DPP: Mismatching curves in bootstrapping info (peer=%s own=%s)",
829 peer_bi->curve->name, own_bi->curve->name);
830 return -1;
831 }
832 }
833
834 pos = os_strstr(cmd, " role=");
835 if (pos) {
836 pos += 6;
837 if (os_strncmp(pos, "configurator", 12) == 0)
838 allowed_roles = DPP_CAPAB_CONFIGURATOR;
839 else if (os_strncmp(pos, "enrollee", 8) == 0)
840 allowed_roles = DPP_CAPAB_ENROLLEE;
841 else if (os_strncmp(pos, "either", 6) == 0)
842 allowed_roles = DPP_CAPAB_CONFIGURATOR |
843 DPP_CAPAB_ENROLLEE;
844 else
845 goto fail;
846 }
847
848 pos = os_strstr(cmd, " netrole=");
849 if (pos) {
850 pos += 9;
851 wpa_s->dpp_netrole_ap = os_strncmp(pos, "ap", 2) == 0;
852 }
853
854 pos = os_strstr(cmd, " neg_freq=");
855 if (pos)
856 neg_freq = atoi(pos + 10);
857
858 if (wpa_s->dpp_auth) {
859 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
860 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
861 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
862 NULL);
863 offchannel_send_action_done(wpa_s);
864 dpp_auth_deinit(wpa_s->dpp_auth);
865 }
866 wpa_s->dpp_auth = dpp_auth_init(wpa_s, peer_bi, own_bi, allowed_roles,
867 neg_freq,
868 wpa_s->hw.modes, wpa_s->hw.num_modes);
869 if (!wpa_s->dpp_auth)
870 goto fail;
871 wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
872 wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth, cmd);
873
874 wpa_s->dpp_auth->neg_freq = neg_freq;
875
876 if (!is_zero_ether_addr(peer_bi->mac_addr))
877 os_memcpy(wpa_s->dpp_auth->peer_mac_addr, peer_bi->mac_addr,
878 ETH_ALEN);
879
880 return wpas_dpp_auth_init_next(wpa_s);
881 fail:
882 return -1;
883 }
884
885
886 struct wpas_dpp_listen_work {
887 unsigned int freq;
888 unsigned int duration;
889 struct wpabuf *probe_resp_ie;
890 };
891
892
893 static void wpas_dpp_listen_work_free(struct wpas_dpp_listen_work *lwork)
894 {
895 if (!lwork)
896 return;
897 os_free(lwork);
898 }
899
900
901 static void wpas_dpp_listen_work_done(struct wpa_supplicant *wpa_s)
902 {
903 struct wpas_dpp_listen_work *lwork;
904
905 if (!wpa_s->dpp_listen_work)
906 return;
907
908 lwork = wpa_s->dpp_listen_work->ctx;
909 wpas_dpp_listen_work_free(lwork);
910 radio_work_done(wpa_s->dpp_listen_work);
911 wpa_s->dpp_listen_work = NULL;
912 }
913
914
915 static void dpp_start_listen_cb(struct wpa_radio_work *work, int deinit)
916 {
917 struct wpa_supplicant *wpa_s = work->wpa_s;
918 struct wpas_dpp_listen_work *lwork = work->ctx;
919
920 if (deinit) {
921 if (work->started) {
922 wpa_s->dpp_listen_work = NULL;
923 wpas_dpp_listen_stop(wpa_s);
924 }
925 wpas_dpp_listen_work_free(lwork);
926 return;
927 }
928
929 wpa_s->dpp_listen_work = work;
930
931 wpa_s->dpp_pending_listen_freq = lwork->freq;
932
933 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq,
934 wpa_s->max_remain_on_chan) < 0) {
935 wpa_printf(MSG_DEBUG,
936 "DPP: Failed to request the driver to remain on channel (%u MHz) for listen",
937 lwork->freq);
938 wpas_dpp_listen_work_done(wpa_s);
939 wpa_s->dpp_pending_listen_freq = 0;
940 return;
941 }
942 wpa_s->off_channel_freq = 0;
943 wpa_s->roc_waiting_drv_freq = lwork->freq;
944 }
945
946
947 static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
948 unsigned int freq)
949 {
950 struct wpas_dpp_listen_work *lwork;
951
952 if (wpa_s->dpp_listen_work) {
953 wpa_printf(MSG_DEBUG,
954 "DPP: Reject start_listen since dpp_listen_work already exists");
955 return -1;
956 }
957
958 if (wpa_s->dpp_listen_freq)
959 wpas_dpp_listen_stop(wpa_s);
960 wpa_s->dpp_listen_freq = freq;
961
962 lwork = os_zalloc(sizeof(*lwork));
963 if (!lwork)
964 return -1;
965 lwork->freq = freq;
966
967 if (radio_add_work(wpa_s, freq, "dpp-listen", 0, dpp_start_listen_cb,
968 lwork) < 0) {
969 wpas_dpp_listen_work_free(lwork);
970 return -1;
971 }
972
973 return 0;
974 }
975
976
977 int wpas_dpp_listen(struct wpa_supplicant *wpa_s, const char *cmd)
978 {
979 int freq;
980
981 freq = atoi(cmd);
982 if (freq <= 0)
983 return -1;
984
985 if (os_strstr(cmd, " role=configurator"))
986 wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR;
987 else if (os_strstr(cmd, " role=enrollee"))
988 wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE;
989 else
990 wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR |
991 DPP_CAPAB_ENROLLEE;
992 wpa_s->dpp_qr_mutual = os_strstr(cmd, " qr=mutual") != NULL;
993 wpa_s->dpp_netrole_ap = os_strstr(cmd, " netrole=ap") != NULL;
994 if (wpa_s->dpp_listen_freq == (unsigned int) freq) {
995 wpa_printf(MSG_DEBUG, "DPP: Already listening on %u MHz",
996 freq);
997 return 0;
998 }
999
1000 return wpas_dpp_listen_start(wpa_s, freq);
1001 }
1002
1003
1004 void wpas_dpp_listen_stop(struct wpa_supplicant *wpa_s)
1005 {
1006 wpa_s->dpp_in_response_listen = 0;
1007 if (!wpa_s->dpp_listen_freq)
1008 return;
1009
1010 wpa_printf(MSG_DEBUG, "DPP: Stop listen on %u MHz",
1011 wpa_s->dpp_listen_freq);
1012 wpa_drv_cancel_remain_on_channel(wpa_s);
1013 wpa_s->dpp_listen_freq = 0;
1014 wpas_dpp_listen_work_done(wpa_s);
1015 }
1016
1017
1018 void wpas_dpp_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
1019 unsigned int freq)
1020 {
1021 if (!wpa_s->dpp_listen_freq && !wpa_s->dpp_pending_listen_freq)
1022 return;
1023
1024 wpa_printf(MSG_DEBUG,
1025 "DPP: remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u)",
1026 wpa_s->off_channel_freq, wpa_s->dpp_pending_listen_freq,
1027 wpa_s->roc_waiting_drv_freq, freq);
1028 if (wpa_s->off_channel_freq &&
1029 wpa_s->off_channel_freq == wpa_s->dpp_pending_listen_freq) {
1030 wpa_printf(MSG_DEBUG, "DPP: Listen on %u MHz started", freq);
1031 wpa_s->dpp_pending_listen_freq = 0;
1032 } else {
1033 wpa_printf(MSG_DEBUG,
1034 "DPP: Ignore remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d freq=%u)",
1035 wpa_s->off_channel_freq,
1036 wpa_s->dpp_pending_listen_freq, freq);
1037 }
1038 }
1039
1040
1041 void wpas_dpp_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
1042 unsigned int freq)
1043 {
1044 wpas_dpp_listen_work_done(wpa_s);
1045
1046 if (wpa_s->dpp_auth && wpa_s->dpp_in_response_listen) {
1047 unsigned int new_freq;
1048
1049 /* Continue listen with a new remain-on-channel */
1050 if (wpa_s->dpp_auth->neg_freq > 0)
1051 new_freq = wpa_s->dpp_auth->neg_freq;
1052 else
1053 new_freq = wpa_s->dpp_auth->curr_freq;
1054 wpa_printf(MSG_DEBUG,
1055 "DPP: Continue wait on %u MHz for the ongoing DPP provisioning session",
1056 new_freq);
1057 wpas_dpp_listen_start(wpa_s, new_freq);
1058 return;
1059 }
1060
1061 if (wpa_s->dpp_listen_freq) {
1062 /* Continue listen with a new remain-on-channel */
1063 wpas_dpp_listen_start(wpa_s, wpa_s->dpp_listen_freq);
1064 }
1065 }
1066
1067
1068 static void wpas_dpp_rx_auth_req(struct wpa_supplicant *wpa_s, const u8 *src,
1069 const u8 *hdr, const u8 *buf, size_t len,
1070 unsigned int freq)
1071 {
1072 const u8 *r_bootstrap, *i_bootstrap;
1073 u16 r_bootstrap_len, i_bootstrap_len;
1074 struct dpp_bootstrap_info *bi, *own_bi = NULL, *peer_bi = NULL;
1075
1076 wpa_printf(MSG_DEBUG, "DPP: Authentication Request from " MACSTR,
1077 MAC2STR(src));
1078
1079 r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH,
1080 &r_bootstrap_len);
1081 if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) {
1082 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1083 "Missing or invalid required Responder Bootstrapping Key Hash attribute");
1084 return;
1085 }
1086 wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash",
1087 r_bootstrap, r_bootstrap_len);
1088
1089 i_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH,
1090 &i_bootstrap_len);
1091 if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) {
1092 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1093 "Missing or invalid required Initiator Bootstrapping Key Hash attribute");
1094 return;
1095 }
1096 wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash",
1097 i_bootstrap, i_bootstrap_len);
1098
1099 /* Try to find own and peer bootstrapping key matches based on the
1100 * received hash values */
1101 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
1102 list) {
1103 if (!own_bi && bi->own &&
1104 os_memcmp(bi->pubkey_hash, r_bootstrap,
1105 SHA256_MAC_LEN) == 0) {
1106 wpa_printf(MSG_DEBUG,
1107 "DPP: Found matching own bootstrapping information");
1108 own_bi = bi;
1109 }
1110
1111 if (!peer_bi && !bi->own &&
1112 os_memcmp(bi->pubkey_hash, i_bootstrap,
1113 SHA256_MAC_LEN) == 0) {
1114 wpa_printf(MSG_DEBUG,
1115 "DPP: Found matching peer bootstrapping information");
1116 peer_bi = bi;
1117 }
1118
1119 if (own_bi && peer_bi)
1120 break;
1121 }
1122
1123 if (!own_bi) {
1124 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1125 "No matching own bootstrapping key found - ignore message");
1126 return;
1127 }
1128
1129 if (wpa_s->dpp_auth) {
1130 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1131 "Already in DPP authentication exchange - ignore new one");
1132 return;
1133 }
1134
1135 wpa_s->dpp_gas_client = 0;
1136 wpa_s->dpp_auth_ok_on_ack = 0;
1137 wpa_s->dpp_auth = dpp_auth_req_rx(wpa_s, wpa_s->dpp_allowed_roles,
1138 wpa_s->dpp_qr_mutual,
1139 peer_bi, own_bi, freq, hdr, buf, len);
1140 if (!wpa_s->dpp_auth) {
1141 wpa_printf(MSG_DEBUG, "DPP: No response generated");
1142 return;
1143 }
1144 wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
1145 wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth,
1146 wpa_s->dpp_configurator_params);
1147 os_memcpy(wpa_s->dpp_auth->peer_mac_addr, src, ETH_ALEN);
1148
1149 if (wpa_s->dpp_listen_freq &&
1150 wpa_s->dpp_listen_freq != wpa_s->dpp_auth->curr_freq) {
1151 wpa_printf(MSG_DEBUG,
1152 "DPP: Stop listen on %u MHz to allow response on the request %u MHz",
1153 wpa_s->dpp_listen_freq, wpa_s->dpp_auth->curr_freq);
1154 wpas_dpp_listen_stop(wpa_s);
1155 }
1156
1157 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1158 MAC2STR(src), wpa_s->dpp_auth->curr_freq,
1159 DPP_PA_AUTHENTICATION_RESP);
1160 offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq,
1161 src, wpa_s->own_addr, broadcast,
1162 wpabuf_head(wpa_s->dpp_auth->resp_msg),
1163 wpabuf_len(wpa_s->dpp_auth->resp_msg),
1164 500, wpas_dpp_tx_status, 0);
1165 }
1166
1167
1168 static void wpas_dpp_start_gas_server(struct wpa_supplicant *wpa_s)
1169 {
1170 /* TODO: stop wait and start ROC */
1171 }
1172
1173
1174 static struct wpa_ssid * wpas_dpp_add_network(struct wpa_supplicant *wpa_s,
1175 struct dpp_authentication *auth)
1176 {
1177 struct wpa_ssid *ssid;
1178
1179 ssid = wpa_config_add_network(wpa_s->conf);
1180 if (!ssid)
1181 return NULL;
1182 wpas_notify_network_added(wpa_s, ssid);
1183 wpa_config_set_network_defaults(ssid);
1184 ssid->disabled = 1;
1185
1186 ssid->ssid = os_malloc(auth->ssid_len);
1187 if (!ssid->ssid)
1188 goto fail;
1189 os_memcpy(ssid->ssid, auth->ssid, auth->ssid_len);
1190 ssid->ssid_len = auth->ssid_len;
1191
1192 if (auth->connector) {
1193 ssid->key_mgmt = WPA_KEY_MGMT_DPP;
1194 ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
1195 ssid->dpp_connector = os_strdup(auth->connector);
1196 if (!ssid->dpp_connector)
1197 goto fail;
1198 }
1199
1200 if (auth->c_sign_key) {
1201 ssid->dpp_csign = os_malloc(wpabuf_len(auth->c_sign_key));
1202 if (!ssid->dpp_csign)
1203 goto fail;
1204 os_memcpy(ssid->dpp_csign, wpabuf_head(auth->c_sign_key),
1205 wpabuf_len(auth->c_sign_key));
1206 ssid->dpp_csign_len = wpabuf_len(auth->c_sign_key);
1207 }
1208
1209 if (auth->net_access_key) {
1210 ssid->dpp_netaccesskey =
1211 os_malloc(wpabuf_len(auth->net_access_key));
1212 if (!ssid->dpp_netaccesskey)
1213 goto fail;
1214 os_memcpy(ssid->dpp_netaccesskey,
1215 wpabuf_head(auth->net_access_key),
1216 wpabuf_len(auth->net_access_key));
1217 ssid->dpp_netaccesskey_len = wpabuf_len(auth->net_access_key);
1218 ssid->dpp_netaccesskey_expiry = auth->net_access_key_expiry;
1219 }
1220
1221 if (!auth->connector) {
1222 ssid->key_mgmt = 0;
1223 if (auth->akm == DPP_AKM_PSK || auth->akm == DPP_AKM_PSK_SAE)
1224 ssid->key_mgmt |= WPA_KEY_MGMT_PSK |
1225 WPA_KEY_MGMT_PSK_SHA256 | WPA_KEY_MGMT_FT_PSK;
1226 if (auth->akm == DPP_AKM_SAE || auth->akm == DPP_AKM_PSK_SAE)
1227 ssid->key_mgmt |= WPA_KEY_MGMT_SAE |
1228 WPA_KEY_MGMT_FT_SAE;
1229 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
1230 if (auth->passphrase[0]) {
1231 if (wpa_config_set_quoted(ssid, "psk",
1232 auth->passphrase) < 0)
1233 goto fail;
1234 wpa_config_update_psk(ssid);
1235 ssid->export_keys = 1;
1236 } else {
1237 ssid->psk_set = auth->psk_set;
1238 os_memcpy(ssid->psk, auth->psk, PMK_LEN);
1239 }
1240 }
1241
1242 return ssid;
1243 fail:
1244 wpas_notify_network_removed(wpa_s, ssid);
1245 wpa_config_remove_network(wpa_s->conf, ssid->id);
1246 return NULL;
1247 }
1248
1249
1250 static void wpas_dpp_process_config(struct wpa_supplicant *wpa_s,
1251 struct dpp_authentication *auth)
1252 {
1253 struct wpa_ssid *ssid;
1254
1255 if (wpa_s->conf->dpp_config_processing < 1)
1256 return;
1257
1258 ssid = wpas_dpp_add_network(wpa_s, auth);
1259 if (!ssid)
1260 return;
1261
1262 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_NETWORK_ID "%d", ssid->id);
1263 if (wpa_s->conf->dpp_config_processing < 2)
1264 return;
1265
1266 wpa_printf(MSG_DEBUG, "DPP: Trying to connect to the new network");
1267 ssid->disabled = 0;
1268 wpa_s->disconnected = 0;
1269 wpa_s->reassociate = 1;
1270 wpa_s->scan_runs = 0;
1271 wpa_s->normal_scans = 0;
1272 wpa_supplicant_cancel_sched_scan(wpa_s);
1273 wpa_supplicant_req_scan(wpa_s, 0, 0);
1274 }
1275
1276
1277 static void wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s,
1278 struct dpp_authentication *auth)
1279 {
1280 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED);
1281 if (auth->ssid_len)
1282 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s",
1283 wpa_ssid_txt(auth->ssid, auth->ssid_len));
1284 if (auth->connector) {
1285 /* TODO: Save the Connector and consider using a command
1286 * to fetch the value instead of sending an event with
1287 * it. The Connector could end up being larger than what
1288 * most clients are ready to receive as an event
1289 * message. */
1290 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONNECTOR "%s",
1291 auth->connector);
1292 }
1293 if (auth->c_sign_key) {
1294 char *hex;
1295 size_t hexlen;
1296
1297 hexlen = 2 * wpabuf_len(auth->c_sign_key) + 1;
1298 hex = os_malloc(hexlen);
1299 if (hex) {
1300 wpa_snprintf_hex(hex, hexlen,
1301 wpabuf_head(auth->c_sign_key),
1302 wpabuf_len(auth->c_sign_key));
1303 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_C_SIGN_KEY "%s",
1304 hex);
1305 os_free(hex);
1306 }
1307 }
1308 if (auth->net_access_key) {
1309 char *hex;
1310 size_t hexlen;
1311
1312 hexlen = 2 * wpabuf_len(auth->net_access_key) + 1;
1313 hex = os_malloc(hexlen);
1314 if (hex) {
1315 wpa_snprintf_hex(hex, hexlen,
1316 wpabuf_head(auth->net_access_key),
1317 wpabuf_len(auth->net_access_key));
1318 if (auth->net_access_key_expiry)
1319 wpa_msg(wpa_s, MSG_INFO,
1320 DPP_EVENT_NET_ACCESS_KEY "%s %lu", hex,
1321 (long unsigned)
1322 auth->net_access_key_expiry);
1323 else
1324 wpa_msg(wpa_s, MSG_INFO,
1325 DPP_EVENT_NET_ACCESS_KEY "%s", hex);
1326 os_free(hex);
1327 }
1328 }
1329
1330 wpas_dpp_process_config(wpa_s, auth);
1331 }
1332
1333
1334 static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
1335 enum gas_query_result result,
1336 const struct wpabuf *adv_proto,
1337 const struct wpabuf *resp, u16 status_code)
1338 {
1339 struct wpa_supplicant *wpa_s = ctx;
1340 const u8 *pos;
1341 struct dpp_authentication *auth = wpa_s->dpp_auth;
1342
1343 wpa_s->dpp_gas_dialog_token = -1;
1344
1345 if (!auth || !auth->auth_success) {
1346 wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
1347 return;
1348 }
1349 if (!resp || status_code != WLAN_STATUS_SUCCESS) {
1350 wpa_printf(MSG_DEBUG, "DPP: GAS query did not succeed");
1351 goto fail;
1352 }
1353
1354 wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response adv_proto",
1355 adv_proto);
1356 wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response (GAS response)",
1357 resp);
1358
1359 if (wpabuf_len(adv_proto) != 10 ||
1360 !(pos = wpabuf_head(adv_proto)) ||
1361 pos[0] != WLAN_EID_ADV_PROTO ||
1362 pos[1] != 8 ||
1363 pos[3] != WLAN_EID_VENDOR_SPECIFIC ||
1364 pos[4] != 5 ||
1365 WPA_GET_BE24(&pos[5]) != OUI_WFA ||
1366 pos[8] != 0x1a ||
1367 pos[9] != 1) {
1368 wpa_printf(MSG_DEBUG,
1369 "DPP: Not a DPP Advertisement Protocol ID");
1370 goto fail;
1371 }
1372
1373 if (dpp_conf_resp_rx(auth, resp) < 0) {
1374 wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed");
1375 goto fail;
1376 }
1377
1378 wpas_dpp_handle_config_obj(wpa_s, auth);
1379 dpp_auth_deinit(wpa_s->dpp_auth);
1380 wpa_s->dpp_auth = NULL;
1381 return;
1382
1383 fail:
1384 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
1385 dpp_auth_deinit(wpa_s->dpp_auth);
1386 wpa_s->dpp_auth = NULL;
1387 }
1388
1389
1390 static void wpas_dpp_start_gas_client(struct wpa_supplicant *wpa_s)
1391 {
1392 struct dpp_authentication *auth = wpa_s->dpp_auth;
1393 struct wpabuf *buf, *conf_req;
1394 char json[100];
1395 int res;
1396
1397 wpa_s->dpp_gas_client = 1;
1398 os_snprintf(json, sizeof(json),
1399 "{\"name\":\"Test\","
1400 "\"wi-fi_tech\":\"infra\","
1401 "\"netRole\":\"%s\"}",
1402 wpa_s->dpp_netrole_ap ? "ap" : "sta");
1403 #ifdef CONFIG_TESTING_OPTIONS
1404 if (dpp_test == DPP_TEST_INVALID_CONFIG_ATTR_OBJ_CONF_REQ) {
1405 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Config Attr");
1406 json[29] = 'k'; /* replace "infra" with "knfra" */
1407 }
1408 #endif /* CONFIG_TESTING_OPTIONS */
1409 wpa_printf(MSG_DEBUG, "DPP: GAS Config Attributes: %s", json);
1410
1411 offchannel_send_action_done(wpa_s);
1412 wpas_dpp_listen_stop(wpa_s);
1413
1414 conf_req = dpp_build_conf_req(auth, json);
1415 if (!conf_req) {
1416 wpa_printf(MSG_DEBUG,
1417 "DPP: No configuration request data available");
1418 return;
1419 }
1420
1421 buf = gas_build_initial_req(0, 10 + 2 + wpabuf_len(conf_req));
1422 if (!buf) {
1423 wpabuf_free(conf_req);
1424 return;
1425 }
1426
1427 /* Advertisement Protocol IE */
1428 wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
1429 wpabuf_put_u8(buf, 8); /* Length */
1430 wpabuf_put_u8(buf, 0x7f);
1431 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
1432 wpabuf_put_u8(buf, 5);
1433 wpabuf_put_be24(buf, OUI_WFA);
1434 wpabuf_put_u8(buf, DPP_OUI_TYPE);
1435 wpabuf_put_u8(buf, 0x01);
1436
1437 /* GAS Query */
1438 wpabuf_put_le16(buf, wpabuf_len(conf_req));
1439 wpabuf_put_buf(buf, conf_req);
1440 wpabuf_free(conf_req);
1441
1442 wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (freq %u MHz)",
1443 MAC2STR(auth->peer_mac_addr), auth->curr_freq);
1444
1445 res = gas_query_req(wpa_s->gas, auth->peer_mac_addr, auth->curr_freq,
1446 1, buf, wpas_dpp_gas_resp_cb, wpa_s);
1447 if (res < 0) {
1448 wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request");
1449 wpabuf_free(buf);
1450 } else {
1451 wpa_printf(MSG_DEBUG,
1452 "DPP: GAS query started with dialog token %u", res);
1453 wpa_s->dpp_gas_dialog_token = res;
1454 }
1455 }
1456
1457
1458 static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator)
1459 {
1460 wpa_printf(MSG_DEBUG, "DPP: Authentication succeeded");
1461 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=%d", initiator);
1462 #ifdef CONFIG_TESTING_OPTIONS
1463 if (dpp_test == DPP_TEST_STOP_AT_AUTH_CONF) {
1464 wpa_printf(MSG_INFO,
1465 "DPP: TESTING - stop at Authentication Confirm");
1466 if (wpa_s->dpp_auth->configurator) {
1467 /* Prevent GAS response */
1468 wpa_s->dpp_auth->auth_success = 0;
1469 }
1470 return;
1471 }
1472 #endif /* CONFIG_TESTING_OPTIONS */
1473
1474 if (wpa_s->dpp_auth->configurator)
1475 wpas_dpp_start_gas_server(wpa_s);
1476 else
1477 wpas_dpp_start_gas_client(wpa_s);
1478 }
1479
1480
1481 static void wpas_dpp_rx_auth_resp(struct wpa_supplicant *wpa_s, const u8 *src,
1482 const u8 *hdr, const u8 *buf, size_t len,
1483 unsigned int freq)
1484 {
1485 struct dpp_authentication *auth = wpa_s->dpp_auth;
1486 struct wpabuf *msg;
1487
1488 wpa_printf(MSG_DEBUG, "DPP: Authentication Response from " MACSTR
1489 " (freq %u MHz)", MAC2STR(src), freq);
1490
1491 if (!auth) {
1492 wpa_printf(MSG_DEBUG,
1493 "DPP: No DPP Authentication in progress - drop");
1494 return;
1495 }
1496
1497 if (!is_zero_ether_addr(auth->peer_mac_addr) &&
1498 os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
1499 wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
1500 MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
1501 return;
1502 }
1503
1504 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
1505
1506 if (auth->curr_freq != freq && auth->neg_freq == freq) {
1507 wpa_printf(MSG_DEBUG,
1508 "DPP: Responder accepted request for different negotiation channel");
1509 auth->curr_freq = freq;
1510 }
1511
1512 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
1513 msg = dpp_auth_resp_rx(auth, hdr, buf, len);
1514 if (!msg) {
1515 if (auth->auth_resp_status == DPP_STATUS_RESPONSE_PENDING) {
1516 wpa_printf(MSG_DEBUG,
1517 "DPP: Start wait for full response");
1518 offchannel_send_action_done(wpa_s);
1519 wpas_dpp_listen_start(wpa_s, auth->curr_freq);
1520 return;
1521 }
1522 wpa_printf(MSG_DEBUG, "DPP: No confirm generated");
1523 return;
1524 }
1525 os_memcpy(auth->peer_mac_addr, src, ETH_ALEN);
1526
1527 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1528 MAC2STR(src), auth->curr_freq, DPP_PA_AUTHENTICATION_CONF);
1529 offchannel_send_action(wpa_s, auth->curr_freq,
1530 src, wpa_s->own_addr, broadcast,
1531 wpabuf_head(msg), wpabuf_len(msg),
1532 500, wpas_dpp_tx_status, 0);
1533 wpabuf_free(msg);
1534 wpa_s->dpp_auth_ok_on_ack = 1;
1535 }
1536
1537
1538 static void wpas_dpp_rx_auth_conf(struct wpa_supplicant *wpa_s, const u8 *src,
1539 const u8 *hdr, const u8 *buf, size_t len)
1540 {
1541 struct dpp_authentication *auth = wpa_s->dpp_auth;
1542
1543 wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR,
1544 MAC2STR(src));
1545
1546 if (!auth) {
1547 wpa_printf(MSG_DEBUG,
1548 "DPP: No DPP Authentication in progress - drop");
1549 return;
1550 }
1551
1552 if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
1553 wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
1554 MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
1555 return;
1556 }
1557
1558 if (dpp_auth_conf_rx(auth, hdr, buf, len) < 0) {
1559 wpa_printf(MSG_DEBUG, "DPP: Authentication failed");
1560 return;
1561 }
1562
1563 wpas_dpp_auth_success(wpa_s, 0);
1564 }
1565
1566
1567 static void wpas_dpp_rx_peer_disc_resp(struct wpa_supplicant *wpa_s,
1568 const u8 *src,
1569 const u8 *buf, size_t len)
1570 {
1571 struct wpa_ssid *ssid;
1572 const u8 *connector, *trans_id, *status;
1573 u16 connector_len, trans_id_len, status_len;
1574 struct dpp_introduction intro;
1575 struct rsn_pmksa_cache_entry *entry;
1576 struct os_time now;
1577 struct os_reltime rnow;
1578 os_time_t expiry;
1579 unsigned int seconds;
1580 enum dpp_status_error res;
1581
1582 wpa_printf(MSG_DEBUG, "DPP: Peer Discovery Response from " MACSTR,
1583 MAC2STR(src));
1584 if (is_zero_ether_addr(wpa_s->dpp_intro_bssid) ||
1585 os_memcmp(src, wpa_s->dpp_intro_bssid, ETH_ALEN) != 0) {
1586 wpa_printf(MSG_DEBUG, "DPP: Not waiting for response from "
1587 MACSTR " - drop", MAC2STR(src));
1588 return;
1589 }
1590 offchannel_send_action_done(wpa_s);
1591
1592 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1593 if (ssid == wpa_s->dpp_intro_network)
1594 break;
1595 }
1596 if (!ssid || !ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1597 !ssid->dpp_csign) {
1598 wpa_printf(MSG_DEBUG,
1599 "DPP: Profile not found for network introduction");
1600 return;
1601 }
1602
1603 trans_id = dpp_get_attr(buf, len, DPP_ATTR_TRANSACTION_ID,
1604 &trans_id_len);
1605 if (!trans_id || trans_id_len != 1) {
1606 wpa_printf(MSG_DEBUG,
1607 "DPP: Peer did not include Transaction ID");
1608 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1609 " fail=missing_transaction_id", MAC2STR(src));
1610 goto fail;
1611 }
1612 if (trans_id[0] != TRANSACTION_ID) {
1613 wpa_printf(MSG_DEBUG,
1614 "DPP: Ignore frame with unexpected Transaction ID %u",
1615 trans_id[0]);
1616 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1617 " fail=transaction_id_mismatch", MAC2STR(src));
1618 goto fail;
1619 }
1620
1621 status = dpp_get_attr(buf, len, DPP_ATTR_STATUS, &status_len);
1622 if (!status || status_len != 1) {
1623 wpa_printf(MSG_DEBUG, "DPP: Peer did not include Status");
1624 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1625 " fail=missing_status", MAC2STR(src));
1626 goto fail;
1627 }
1628 if (status[0] != DPP_STATUS_OK) {
1629 wpa_printf(MSG_DEBUG,
1630 "DPP: Peer rejected network introduction: Status %u",
1631 status[0]);
1632 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1633 " status=%u", MAC2STR(src), status[0]);
1634 goto fail;
1635 }
1636
1637 connector = dpp_get_attr(buf, len, DPP_ATTR_CONNECTOR, &connector_len);
1638 if (!connector) {
1639 wpa_printf(MSG_DEBUG,
1640 "DPP: Peer did not include its Connector");
1641 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1642 " fail=missing_connector", MAC2STR(src));
1643 goto fail;
1644 }
1645
1646 res = dpp_peer_intro(&intro, ssid->dpp_connector,
1647 ssid->dpp_netaccesskey,
1648 ssid->dpp_netaccesskey_len,
1649 ssid->dpp_csign,
1650 ssid->dpp_csign_len,
1651 connector, connector_len, &expiry);
1652 if (res != DPP_STATUS_OK) {
1653 wpa_printf(MSG_INFO,
1654 "DPP: Network Introduction protocol resulted in failure");
1655 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1656 " fail=peer_connector_validation_failed", MAC2STR(src));
1657 goto fail;
1658 }
1659
1660 entry = os_zalloc(sizeof(*entry));
1661 if (!entry)
1662 goto fail;
1663 os_memcpy(entry->aa, src, ETH_ALEN);
1664 os_memcpy(entry->pmkid, intro.pmkid, PMKID_LEN);
1665 os_memcpy(entry->pmk, intro.pmk, intro.pmk_len);
1666 entry->pmk_len = intro.pmk_len;
1667 entry->akmp = WPA_KEY_MGMT_DPP;
1668 if (expiry) {
1669 os_get_time(&now);
1670 seconds = expiry - now.sec;
1671 } else {
1672 seconds = 86400 * 7;
1673 }
1674 os_get_reltime(&rnow);
1675 entry->expiration = rnow.sec + seconds;
1676 entry->reauth_time = rnow.sec + seconds;
1677 entry->network_ctx = ssid;
1678 wpa_sm_pmksa_cache_add_entry(wpa_s->wpa, entry);
1679
1680 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1681 " status=%u", MAC2STR(src), status[0]);
1682
1683 wpa_printf(MSG_DEBUG,
1684 "DPP: Try connection again after successful network introduction");
1685 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
1686 wpa_supplicant_cancel_sched_scan(wpa_s);
1687 wpa_supplicant_req_scan(wpa_s, 0, 0);
1688 }
1689 fail:
1690 os_memset(&intro, 0, sizeof(intro));
1691 }
1692
1693
1694 static int wpas_dpp_allow_ir(struct wpa_supplicant *wpa_s, unsigned int freq)
1695 {
1696 int i, j;
1697
1698 if (!wpa_s->hw.modes)
1699 return -1;
1700
1701 for (i = 0; i < wpa_s->hw.num_modes; i++) {
1702 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
1703
1704 for (j = 0; j < mode->num_channels; j++) {
1705 struct hostapd_channel_data *chan = &mode->channels[j];
1706
1707 if (chan->freq != (int) freq)
1708 continue;
1709
1710 if (chan->flag & (HOSTAPD_CHAN_DISABLED |
1711 HOSTAPD_CHAN_NO_IR |
1712 HOSTAPD_CHAN_RADAR))
1713 continue;
1714
1715 return 1;
1716 }
1717 }
1718
1719 wpa_printf(MSG_DEBUG,
1720 "DPP: Frequency %u MHz not supported or does not allow PKEX initiation in the current channel list",
1721 freq);
1722
1723 return 0;
1724 }
1725
1726
1727 static int wpas_dpp_pkex_next_channel(struct wpa_supplicant *wpa_s,
1728 struct dpp_pkex *pkex)
1729 {
1730 if (pkex->freq == 2437)
1731 pkex->freq = 5745;
1732 else if (pkex->freq == 5745)
1733 pkex->freq = 5220;
1734 else if (pkex->freq == 5220)
1735 pkex->freq = 60480;
1736 else
1737 return -1; /* no more channels to try */
1738
1739 if (wpas_dpp_allow_ir(wpa_s, pkex->freq) == 1) {
1740 wpa_printf(MSG_DEBUG, "DPP: Try to initiate on %u MHz",
1741 pkex->freq);
1742 return 0;
1743 }
1744
1745 /* Could not use this channel - try the next one */
1746 return wpas_dpp_pkex_next_channel(wpa_s, pkex);
1747 }
1748
1749
1750 static void wpas_dpp_pkex_retry_timeout(void *eloop_ctx, void *timeout_ctx)
1751 {
1752 struct wpa_supplicant *wpa_s = eloop_ctx;
1753 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1754
1755 if (!pkex || !pkex->exchange_req)
1756 return;
1757 if (pkex->exch_req_tries >= 5) {
1758 if (wpas_dpp_pkex_next_channel(wpa_s, pkex) < 0) {
1759 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1760 "No response from PKEX peer");
1761 dpp_pkex_free(pkex);
1762 wpa_s->dpp_pkex = NULL;
1763 return;
1764 }
1765 pkex->exch_req_tries = 0;
1766 }
1767
1768 pkex->exch_req_tries++;
1769 wpa_printf(MSG_DEBUG, "DPP: Retransmit PKEX Exchange Request (try %u)",
1770 pkex->exch_req_tries);
1771 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1772 MAC2STR(broadcast), pkex->freq, DPP_PA_PKEX_EXCHANGE_REQ);
1773 offchannel_send_action(wpa_s, pkex->freq, broadcast,
1774 wpa_s->own_addr, broadcast,
1775 wpabuf_head(pkex->exchange_req),
1776 wpabuf_len(pkex->exchange_req),
1777 pkex->exch_req_wait_time,
1778 wpas_dpp_tx_pkex_status, 0);
1779 }
1780
1781
1782 static void
1783 wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
1784 unsigned int freq, const u8 *dst,
1785 const u8 *src, const u8 *bssid,
1786 const u8 *data, size_t data_len,
1787 enum offchannel_send_action_result result)
1788 {
1789 const char *res_txt;
1790 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1791
1792 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
1793 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
1794 "FAILED");
1795 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
1796 " result=%s (PKEX)",
1797 freq, MAC2STR(dst), res_txt);
1798 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
1799 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
1800
1801 if (!pkex) {
1802 wpa_printf(MSG_DEBUG,
1803 "DPP: Ignore TX status since there is no ongoing PKEX exchange");
1804 return;
1805 }
1806
1807 if (pkex->failed) {
1808 wpa_printf(MSG_DEBUG,
1809 "DPP: Terminate PKEX exchange due to an earlier error");
1810 if (pkex->t > pkex->own_bi->pkex_t)
1811 pkex->own_bi->pkex_t = pkex->t;
1812 dpp_pkex_free(pkex);
1813 wpa_s->dpp_pkex = NULL;
1814 return;
1815 }
1816
1817 if (pkex->exch_req_wait_time && pkex->exchange_req) {
1818 /* Wait for PKEX Exchange Response frame and retry request if
1819 * no response is seen. */
1820 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
1821 eloop_register_timeout(pkex->exch_req_wait_time / 1000,
1822 (pkex->exch_req_wait_time % 1000) * 1000,
1823 wpas_dpp_pkex_retry_timeout, wpa_s,
1824 NULL);
1825 }
1826 }
1827
1828
1829 static void
1830 wpas_dpp_rx_pkex_exchange_req(struct wpa_supplicant *wpa_s, const u8 *src,
1831 const u8 *buf, size_t len, unsigned int freq)
1832 {
1833 struct wpabuf *msg;
1834 unsigned int wait_time;
1835
1836 wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request from " MACSTR,
1837 MAC2STR(src));
1838
1839 /* TODO: Support multiple PKEX codes by iterating over all the enabled
1840 * values here */
1841
1842 if (!wpa_s->dpp_pkex_code || !wpa_s->dpp_pkex_bi) {
1843 wpa_printf(MSG_DEBUG,
1844 "DPP: No PKEX code configured - ignore request");
1845 return;
1846 }
1847
1848 if (wpa_s->dpp_pkex) {
1849 /* TODO: Support parallel operations */
1850 wpa_printf(MSG_DEBUG,
1851 "DPP: Already in PKEX session - ignore new request");
1852 return;
1853 }
1854
1855 wpa_s->dpp_pkex = dpp_pkex_rx_exchange_req(wpa_s, wpa_s->dpp_pkex_bi,
1856 wpa_s->own_addr, src,
1857 wpa_s->dpp_pkex_identifier,
1858 wpa_s->dpp_pkex_code,
1859 buf, len);
1860 if (!wpa_s->dpp_pkex) {
1861 wpa_printf(MSG_DEBUG,
1862 "DPP: Failed to process the request - ignore it");
1863 return;
1864 }
1865
1866 msg = wpa_s->dpp_pkex->exchange_resp;
1867 wait_time = wpa_s->max_remain_on_chan;
1868 if (wait_time > 2000)
1869 wait_time = 2000;
1870 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1871 MAC2STR(src), freq, DPP_PA_PKEX_EXCHANGE_RESP);
1872 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1873 broadcast,
1874 wpabuf_head(msg), wpabuf_len(msg),
1875 wait_time, wpas_dpp_tx_pkex_status, 0);
1876 }
1877
1878
1879 static void
1880 wpas_dpp_rx_pkex_exchange_resp(struct wpa_supplicant *wpa_s, const u8 *src,
1881 const u8 *buf, size_t len, unsigned int freq)
1882 {
1883 struct wpabuf *msg;
1884 unsigned int wait_time;
1885
1886 wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response from " MACSTR,
1887 MAC2STR(src));
1888
1889 /* TODO: Support multiple PKEX codes by iterating over all the enabled
1890 * values here */
1891
1892 if (!wpa_s->dpp_pkex || !wpa_s->dpp_pkex->initiator ||
1893 wpa_s->dpp_pkex->exchange_done) {
1894 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1895 return;
1896 }
1897
1898 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
1899 wpa_s->dpp_pkex->exch_req_wait_time = 0;
1900
1901 msg = dpp_pkex_rx_exchange_resp(wpa_s->dpp_pkex, src, buf, len);
1902 if (!msg) {
1903 wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
1904 return;
1905 }
1906
1907 wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Request to " MACSTR,
1908 MAC2STR(src));
1909
1910 wait_time = wpa_s->max_remain_on_chan;
1911 if (wait_time > 2000)
1912 wait_time = 2000;
1913 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1914 MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_REQ);
1915 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1916 broadcast,
1917 wpabuf_head(msg), wpabuf_len(msg),
1918 wait_time, wpas_dpp_tx_pkex_status, 0);
1919 wpabuf_free(msg);
1920 }
1921
1922
1923 static struct dpp_bootstrap_info *
1924 wpas_dpp_pkex_finish(struct wpa_supplicant *wpa_s, const u8 *peer,
1925 unsigned int freq)
1926 {
1927 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1928 struct dpp_bootstrap_info *bi;
1929
1930 bi = os_zalloc(sizeof(*bi));
1931 if (!bi)
1932 return NULL;
1933 bi->id = wpas_dpp_next_id(wpa_s);
1934 bi->type = DPP_BOOTSTRAP_PKEX;
1935 os_memcpy(bi->mac_addr, peer, ETH_ALEN);
1936 bi->num_freq = 1;
1937 bi->freq[0] = freq;
1938 bi->curve = pkex->own_bi->curve;
1939 bi->pubkey = pkex->peer_bootstrap_key;
1940 pkex->peer_bootstrap_key = NULL;
1941 dpp_pkex_free(pkex);
1942 wpa_s->dpp_pkex = NULL;
1943 if (dpp_bootstrap_key_hash(bi) < 0) {
1944 dpp_bootstrap_info_free(bi);
1945 return NULL;
1946 }
1947 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
1948 return bi;
1949 }
1950
1951
1952 static void
1953 wpas_dpp_rx_pkex_commit_reveal_req(struct wpa_supplicant *wpa_s, const u8 *src,
1954 const u8 *hdr, const u8 *buf, size_t len,
1955 unsigned int freq)
1956 {
1957 struct wpabuf *msg;
1958 unsigned int wait_time;
1959 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1960
1961 wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Request from " MACSTR,
1962 MAC2STR(src));
1963
1964 if (!pkex || pkex->initiator || !pkex->exchange_done) {
1965 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1966 return;
1967 }
1968
1969 msg = dpp_pkex_rx_commit_reveal_req(pkex, hdr, buf, len);
1970 if (!msg) {
1971 wpa_printf(MSG_DEBUG, "DPP: Failed to process the request");
1972 if (pkex->failed) {
1973 wpa_printf(MSG_DEBUG, "DPP: Terminate PKEX exchange");
1974 if (pkex->t > pkex->own_bi->pkex_t)
1975 pkex->own_bi->pkex_t = pkex->t;
1976 dpp_pkex_free(wpa_s->dpp_pkex);
1977 wpa_s->dpp_pkex = NULL;
1978 }
1979 return;
1980 }
1981
1982 wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Response to "
1983 MACSTR, MAC2STR(src));
1984
1985 wait_time = wpa_s->max_remain_on_chan;
1986 if (wait_time > 2000)
1987 wait_time = 2000;
1988 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1989 MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_RESP);
1990 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1991 broadcast,
1992 wpabuf_head(msg), wpabuf_len(msg),
1993 wait_time, wpas_dpp_tx_pkex_status, 0);
1994 wpabuf_free(msg);
1995
1996 wpas_dpp_pkex_finish(wpa_s, src, freq);
1997 }
1998
1999
2000 static void
2001 wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src,
2002 const u8 *hdr, const u8 *buf, size_t len,
2003 unsigned int freq)
2004 {
2005 int res;
2006 struct dpp_bootstrap_info *bi;
2007 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
2008 char cmd[500];
2009
2010 wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Response from " MACSTR,
2011 MAC2STR(src));
2012
2013 if (!pkex || !pkex->initiator || !pkex->exchange_done) {
2014 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
2015 return;
2016 }
2017
2018 res = dpp_pkex_rx_commit_reveal_resp(pkex, hdr, buf, len);
2019 if (res < 0) {
2020 wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
2021 return;
2022 }
2023
2024 bi = wpas_dpp_pkex_finish(wpa_s, src, freq);
2025 if (!bi)
2026 return;
2027
2028 os_snprintf(cmd, sizeof(cmd), " peer=%u %s",
2029 bi->id,
2030 wpa_s->dpp_pkex_auth_cmd ? wpa_s->dpp_pkex_auth_cmd : "");
2031 wpa_printf(MSG_DEBUG,
2032 "DPP: Start authentication after PKEX with parameters: %s",
2033 cmd);
2034 if (wpas_dpp_auth_init(wpa_s, cmd) < 0) {
2035 wpa_printf(MSG_DEBUG,
2036 "DPP: Authentication initialization failed");
2037 return;
2038 }
2039 }
2040
2041
2042 void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src,
2043 const u8 *buf, size_t len, unsigned int freq)
2044 {
2045 u8 crypto_suite;
2046 enum dpp_public_action_frame_type type;
2047 const u8 *hdr;
2048 unsigned int pkex_t;
2049
2050 if (len < DPP_HDR_LEN)
2051 return;
2052 if (WPA_GET_BE24(buf) != OUI_WFA || buf[3] != DPP_OUI_TYPE)
2053 return;
2054 hdr = buf;
2055 buf += 4;
2056 len -= 4;
2057 crypto_suite = *buf++;
2058 type = *buf++;
2059 len -= 2;
2060
2061 wpa_printf(MSG_DEBUG,
2062 "DPP: Received DPP Public Action frame crypto suite %u type %d from "
2063 MACSTR " freq=%u",
2064 crypto_suite, type, MAC2STR(src), freq);
2065 if (crypto_suite != 1) {
2066 wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u",
2067 crypto_suite);
2068 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
2069 " freq=%u type=%d ignore=unsupported-crypto-suite",
2070 MAC2STR(src), freq, type);
2071 return;
2072 }
2073 wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len);
2074 if (dpp_check_attrs(buf, len) < 0) {
2075 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
2076 " freq=%u type=%d ignore=invalid-attributes",
2077 MAC2STR(src), freq, type);
2078 return;
2079 }
2080 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR " freq=%u type=%d",
2081 MAC2STR(src), freq, type);
2082
2083 switch (type) {
2084 case DPP_PA_AUTHENTICATION_REQ:
2085 wpas_dpp_rx_auth_req(wpa_s, src, hdr, buf, len, freq);
2086 break;
2087 case DPP_PA_AUTHENTICATION_RESP:
2088 wpas_dpp_rx_auth_resp(wpa_s, src, hdr, buf, len, freq);
2089 break;
2090 case DPP_PA_AUTHENTICATION_CONF:
2091 wpas_dpp_rx_auth_conf(wpa_s, src, hdr, buf, len);
2092 break;
2093 case DPP_PA_PEER_DISCOVERY_RESP:
2094 wpas_dpp_rx_peer_disc_resp(wpa_s, src, buf, len);
2095 break;
2096 case DPP_PA_PKEX_EXCHANGE_REQ:
2097 wpas_dpp_rx_pkex_exchange_req(wpa_s, src, buf, len, freq);
2098 break;
2099 case DPP_PA_PKEX_EXCHANGE_RESP:
2100 wpas_dpp_rx_pkex_exchange_resp(wpa_s, src, buf, len, freq);
2101 break;
2102 case DPP_PA_PKEX_COMMIT_REVEAL_REQ:
2103 wpas_dpp_rx_pkex_commit_reveal_req(wpa_s, src, hdr, buf, len,
2104 freq);
2105 break;
2106 case DPP_PA_PKEX_COMMIT_REVEAL_RESP:
2107 wpas_dpp_rx_pkex_commit_reveal_resp(wpa_s, src, hdr, buf, len,
2108 freq);
2109 break;
2110 default:
2111 wpa_printf(MSG_DEBUG,
2112 "DPP: Ignored unsupported frame subtype %d", type);
2113 break;
2114 }
2115
2116 if (wpa_s->dpp_pkex)
2117 pkex_t = wpa_s->dpp_pkex->t;
2118 else if (wpa_s->dpp_pkex_bi)
2119 pkex_t = wpa_s->dpp_pkex_bi->pkex_t;
2120 else
2121 pkex_t = 0;
2122 if (pkex_t >= PKEX_COUNTER_T_LIMIT) {
2123 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_PKEX_T_LIMIT "id=0");
2124 wpas_dpp_pkex_remove(wpa_s, "*");
2125 }
2126 }
2127
2128
2129 static struct wpabuf *
2130 wpas_dpp_gas_req_handler(void *ctx, const u8 *sa, const u8 *query,
2131 size_t query_len)
2132 {
2133 struct wpa_supplicant *wpa_s = ctx;
2134 struct dpp_authentication *auth = wpa_s->dpp_auth;
2135 struct wpabuf *resp;
2136
2137 wpa_printf(MSG_DEBUG, "DPP: GAS request from " MACSTR,
2138 MAC2STR(sa));
2139 if (!auth || !auth->auth_success ||
2140 os_memcmp(sa, auth->peer_mac_addr, ETH_ALEN) != 0) {
2141 wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
2142 return NULL;
2143 }
2144 wpa_hexdump(MSG_DEBUG,
2145 "DPP: Received Configuration Request (GAS Query Request)",
2146 query, query_len);
2147 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_REQ_RX "src=" MACSTR,
2148 MAC2STR(sa));
2149 resp = dpp_conf_req_rx(auth, query, query_len);
2150 if (!resp)
2151 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
2152 auth->conf_resp = resp;
2153 return resp;
2154 }
2155
2156
2157 static void
2158 wpas_dpp_gas_status_handler(void *ctx, struct wpabuf *resp, int ok)
2159 {
2160 struct wpa_supplicant *wpa_s = ctx;
2161 struct dpp_authentication *auth = wpa_s->dpp_auth;
2162
2163 if (!auth) {
2164 wpabuf_free(resp);
2165 return;
2166 }
2167 if (auth->conf_resp != resp) {
2168 wpa_printf(MSG_DEBUG,
2169 "DPP: Ignore GAS status report (ok=%d) for unknown response",
2170 ok);
2171 wpabuf_free(resp);
2172 return;
2173 }
2174
2175 wpa_printf(MSG_DEBUG, "DPP: Configuration exchange completed (ok=%d)",
2176 ok);
2177 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
2178 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
2179 offchannel_send_action_done(wpa_s);
2180 wpas_dpp_listen_stop(wpa_s);
2181 if (ok)
2182 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT);
2183 else
2184 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
2185 dpp_auth_deinit(wpa_s->dpp_auth);
2186 wpa_s->dpp_auth = NULL;
2187 wpabuf_free(resp);
2188 }
2189
2190
2191 static unsigned int wpas_dpp_next_configurator_id(struct wpa_supplicant *wpa_s)
2192 {
2193 struct dpp_configurator *conf;
2194 unsigned int max_id = 0;
2195
2196 dl_list_for_each(conf, &wpa_s->dpp_configurator,
2197 struct dpp_configurator, list) {
2198 if (conf->id > max_id)
2199 max_id = conf->id;
2200 }
2201 return max_id + 1;
2202 }
2203
2204
2205 int wpas_dpp_configurator_add(struct wpa_supplicant *wpa_s, const char *cmd)
2206 {
2207 char *curve = NULL;
2208 char *key = NULL;
2209 u8 *privkey = NULL;
2210 size_t privkey_len = 0;
2211 int ret = -1;
2212 struct dpp_configurator *conf = NULL;
2213
2214 curve = get_param(cmd, " curve=");
2215 key = get_param(cmd, " key=");
2216
2217 if (key) {
2218 privkey_len = os_strlen(key) / 2;
2219 privkey = os_malloc(privkey_len);
2220 if (!privkey ||
2221 hexstr2bin(key, privkey, privkey_len) < 0)
2222 goto fail;
2223 }
2224
2225 conf = dpp_keygen_configurator(curve, privkey, privkey_len);
2226 if (!conf)
2227 goto fail;
2228
2229 conf->id = wpas_dpp_next_configurator_id(wpa_s);
2230 dl_list_add(&wpa_s->dpp_configurator, &conf->list);
2231 ret = conf->id;
2232 conf = NULL;
2233 fail:
2234 os_free(curve);
2235 str_clear_free(key);
2236 bin_clear_free(privkey, privkey_len);
2237 dpp_configurator_free(conf);
2238 return ret;
2239 }
2240
2241
2242 static int dpp_configurator_del(struct wpa_supplicant *wpa_s, unsigned int id)
2243 {
2244 struct dpp_configurator *conf, *tmp;
2245 int found = 0;
2246
2247 dl_list_for_each_safe(conf, tmp, &wpa_s->dpp_configurator,
2248 struct dpp_configurator, list) {
2249 if (id && conf->id != id)
2250 continue;
2251 found = 1;
2252 dl_list_del(&conf->list);
2253 dpp_configurator_free(conf);
2254 }
2255
2256 if (id == 0)
2257 return 0; /* flush succeeds regardless of entries found */
2258 return found ? 0 : -1;
2259 }
2260
2261
2262 int wpas_dpp_configurator_remove(struct wpa_supplicant *wpa_s, const char *id)
2263 {
2264 unsigned int id_val;
2265
2266 if (os_strcmp(id, "*") == 0) {
2267 id_val = 0;
2268 } else {
2269 id_val = atoi(id);
2270 if (id_val == 0)
2271 return -1;
2272 }
2273
2274 return dpp_configurator_del(wpa_s, id_val);
2275 }
2276
2277
2278 int wpas_dpp_configurator_sign(struct wpa_supplicant *wpa_s, const char *cmd)
2279 {
2280 struct dpp_authentication *auth;
2281 int ret = -1;
2282 char *curve = NULL;
2283
2284 auth = os_zalloc(sizeof(*auth));
2285 if (!auth)
2286 return -1;
2287
2288 curve = get_param(cmd, " curve=");
2289 wpas_dpp_set_configurator(wpa_s, auth, cmd);
2290
2291 if (dpp_configurator_own_config(auth, curve, 0) == 0) {
2292 wpas_dpp_handle_config_obj(wpa_s, auth);
2293 ret = 0;
2294 }
2295
2296 dpp_auth_deinit(auth);
2297 os_free(curve);
2298
2299 return ret;
2300 }
2301
2302
2303 int wpas_dpp_configurator_get_key(struct wpa_supplicant *wpa_s, unsigned int id,
2304 char *buf, size_t buflen)
2305 {
2306 struct dpp_configurator *conf;
2307
2308 conf = dpp_configurator_get_id(wpa_s, id);
2309 if (!conf)
2310 return -1;
2311
2312 return dpp_configurator_get_key(conf, buf, buflen);
2313 }
2314
2315
2316 static void
2317 wpas_dpp_tx_introduction_status(struct wpa_supplicant *wpa_s,
2318 unsigned int freq, const u8 *dst,
2319 const u8 *src, const u8 *bssid,
2320 const u8 *data, size_t data_len,
2321 enum offchannel_send_action_result result)
2322 {
2323 const char *res_txt;
2324
2325 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
2326 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
2327 "FAILED");
2328 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
2329 " result=%s (DPP Peer Discovery Request)",
2330 freq, MAC2STR(dst), res_txt);
2331 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
2332 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
2333 /* TODO: Time out wait for response more quickly in error cases? */
2334 }
2335
2336
2337 int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
2338 struct wpa_bss *bss)
2339 {
2340 struct os_time now;
2341 struct wpabuf *msg;
2342 unsigned int wait_time;
2343
2344 if (!(ssid->key_mgmt & WPA_KEY_MGMT_DPP) || !bss)
2345 return 0; /* Not using DPP AKM - continue */
2346 if (wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid))
2347 return 0; /* PMKSA exists for DPP AKM - continue */
2348
2349 if (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
2350 !ssid->dpp_csign) {
2351 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
2352 "missing %s",
2353 !ssid->dpp_connector ? "Connector" :
2354 (!ssid->dpp_netaccesskey ? "netAccessKey" :
2355 "C-sign-key"));
2356 return -1;
2357 }
2358
2359 os_get_time(&now);
2360
2361 if (ssid->dpp_netaccesskey_expiry &&
2362 (os_time_t) ssid->dpp_netaccesskey_expiry < now.sec) {
2363 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
2364 "netAccessKey expired");
2365 return -1;
2366 }
2367
2368 wpa_printf(MSG_DEBUG,
2369 "DPP: Starting network introduction protocol to derive PMKSA for "
2370 MACSTR, MAC2STR(bss->bssid));
2371
2372 msg = dpp_alloc_msg(DPP_PA_PEER_DISCOVERY_REQ,
2373 5 + 4 + os_strlen(ssid->dpp_connector));
2374 if (!msg)
2375 return -1;
2376
2377 #ifdef CONFIG_TESTING_OPTIONS
2378 if (dpp_test == DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ) {
2379 wpa_printf(MSG_INFO, "DPP: TESTING - no Transaction ID");
2380 goto skip_trans_id;
2381 }
2382 if (dpp_test == DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ) {
2383 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Transaction ID");
2384 wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
2385 wpabuf_put_le16(msg, 0);
2386 goto skip_trans_id;
2387 }
2388 #endif /* CONFIG_TESTING_OPTIONS */
2389
2390 /* Transaction ID */
2391 wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
2392 wpabuf_put_le16(msg, 1);
2393 wpabuf_put_u8(msg, TRANSACTION_ID);
2394
2395 #ifdef CONFIG_TESTING_OPTIONS
2396 skip_trans_id:
2397 if (dpp_test == DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ) {
2398 wpa_printf(MSG_INFO, "DPP: TESTING - no Connector");
2399 goto skip_connector;
2400 }
2401 if (dpp_test == DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ) {
2402 char *connector;
2403
2404 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Connector");
2405 connector = dpp_corrupt_connector_signature(
2406 ssid->dpp_connector);
2407 if (!connector) {
2408 wpabuf_free(msg);
2409 return -1;
2410 }
2411 wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
2412 wpabuf_put_le16(msg, os_strlen(connector));
2413 wpabuf_put_str(msg, connector);
2414 os_free(connector);
2415 goto skip_connector;
2416 }
2417 #endif /* CONFIG_TESTING_OPTIONS */
2418
2419 /* DPP Connector */
2420 wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
2421 wpabuf_put_le16(msg, os_strlen(ssid->dpp_connector));
2422 wpabuf_put_str(msg, ssid->dpp_connector);
2423
2424 #ifdef CONFIG_TESTING_OPTIONS
2425 skip_connector:
2426 #endif /* CONFIG_TESTING_OPTIONS */
2427
2428 /* TODO: Timeout on AP response */
2429 wait_time = wpa_s->max_remain_on_chan;
2430 if (wait_time > 2000)
2431 wait_time = 2000;
2432 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
2433 MAC2STR(bss->bssid), bss->freq, DPP_PA_PEER_DISCOVERY_REQ);
2434 offchannel_send_action(wpa_s, bss->freq, bss->bssid, wpa_s->own_addr,
2435 broadcast,
2436 wpabuf_head(msg), wpabuf_len(msg),
2437 wait_time, wpas_dpp_tx_introduction_status, 0);
2438 wpabuf_free(msg);
2439
2440 /* Request this connection attempt to terminate - new one will be
2441 * started when network introduction protocol completes */
2442 os_memcpy(wpa_s->dpp_intro_bssid, bss->bssid, ETH_ALEN);
2443 wpa_s->dpp_intro_network = ssid;
2444 return 1;
2445 }
2446
2447
2448 int wpas_dpp_pkex_add(struct wpa_supplicant *wpa_s, const char *cmd)
2449 {
2450 struct dpp_bootstrap_info *own_bi;
2451 const char *pos, *end;
2452 unsigned int wait_time;
2453
2454 pos = os_strstr(cmd, " own=");
2455 if (!pos)
2456 return -1;
2457 pos += 5;
2458 own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
2459 if (!own_bi) {
2460 wpa_printf(MSG_DEBUG,
2461 "DPP: Identified bootstrap info not found");
2462 return -1;
2463 }
2464 if (own_bi->type != DPP_BOOTSTRAP_PKEX) {
2465 wpa_printf(MSG_DEBUG,
2466 "DPP: Identified bootstrap info not for PKEX");
2467 return -1;
2468 }
2469 wpa_s->dpp_pkex_bi = own_bi;
2470 own_bi->pkex_t = 0; /* clear pending errors on new code */
2471
2472 os_free(wpa_s->dpp_pkex_identifier);
2473 wpa_s->dpp_pkex_identifier = NULL;
2474 pos = os_strstr(cmd, " identifier=");
2475 if (pos) {
2476 pos += 12;
2477 end = os_strchr(pos, ' ');
2478 if (!end)
2479 return -1;
2480 wpa_s->dpp_pkex_identifier = os_malloc(end - pos + 1);
2481 if (!wpa_s->dpp_pkex_identifier)
2482 return -1;
2483 os_memcpy(wpa_s->dpp_pkex_identifier, pos, end - pos);
2484 wpa_s->dpp_pkex_identifier[end - pos] = '\0';
2485 }
2486
2487 pos = os_strstr(cmd, " code=");
2488 if (!pos)
2489 return -1;
2490 os_free(wpa_s->dpp_pkex_code);
2491 wpa_s->dpp_pkex_code = os_strdup(pos + 6);
2492 if (!wpa_s->dpp_pkex_code)
2493 return -1;
2494
2495 if (os_strstr(cmd, " init=1")) {
2496 struct dpp_pkex *pkex;
2497 struct wpabuf *msg;
2498
2499 wpa_printf(MSG_DEBUG, "DPP: Initiating PKEX");
2500 dpp_pkex_free(wpa_s->dpp_pkex);
2501 wpa_s->dpp_pkex = dpp_pkex_init(wpa_s, own_bi, wpa_s->own_addr,
2502 wpa_s->dpp_pkex_identifier,
2503 wpa_s->dpp_pkex_code);
2504 pkex = wpa_s->dpp_pkex;
2505 if (!pkex)
2506 return -1;
2507
2508 msg = pkex->exchange_req;
2509 wait_time = wpa_s->max_remain_on_chan;
2510 if (wait_time > 2000)
2511 wait_time = 2000;
2512 pkex->freq = 2437;
2513 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
2514 " freq=%u type=%d",
2515 MAC2STR(broadcast), pkex->freq,
2516 DPP_PA_PKEX_EXCHANGE_REQ);
2517 offchannel_send_action(wpa_s, pkex->freq, broadcast,
2518 wpa_s->own_addr, broadcast,
2519 wpabuf_head(msg), wpabuf_len(msg),
2520 wait_time, wpas_dpp_tx_pkex_status, 0);
2521 if (wait_time == 0)
2522 wait_time = 2000;
2523 pkex->exch_req_wait_time = wait_time;
2524 pkex->exch_req_tries = 1;
2525 }
2526
2527 /* TODO: Support multiple PKEX info entries */
2528
2529 os_free(wpa_s->dpp_pkex_auth_cmd);
2530 wpa_s->dpp_pkex_auth_cmd = os_strdup(cmd);
2531
2532 return 1;
2533 }
2534
2535
2536 int wpas_dpp_pkex_remove(struct wpa_supplicant *wpa_s, const char *id)
2537 {
2538 unsigned int id_val;
2539
2540 if (os_strcmp(id, "*") == 0) {
2541 id_val = 0;
2542 } else {
2543 id_val = atoi(id);
2544 if (id_val == 0)
2545 return -1;
2546 }
2547
2548 if ((id_val != 0 && id_val != 1) || !wpa_s->dpp_pkex_code)
2549 return -1;
2550
2551 /* TODO: Support multiple PKEX entries */
2552 os_free(wpa_s->dpp_pkex_code);
2553 wpa_s->dpp_pkex_code = NULL;
2554 os_free(wpa_s->dpp_pkex_identifier);
2555 wpa_s->dpp_pkex_identifier = NULL;
2556 os_free(wpa_s->dpp_pkex_auth_cmd);
2557 wpa_s->dpp_pkex_auth_cmd = NULL;
2558 wpa_s->dpp_pkex_bi = NULL;
2559 /* TODO: Remove dpp_pkex only if it is for the identified PKEX code */
2560 dpp_pkex_free(wpa_s->dpp_pkex);
2561 wpa_s->dpp_pkex = NULL;
2562 return 0;
2563 }
2564
2565
2566 void wpas_dpp_stop(struct wpa_supplicant *wpa_s)
2567 {
2568 dpp_auth_deinit(wpa_s->dpp_auth);
2569 wpa_s->dpp_auth = NULL;
2570 dpp_pkex_free(wpa_s->dpp_pkex);
2571 wpa_s->dpp_pkex = NULL;
2572 if (wpa_s->dpp_gas_client && wpa_s->dpp_gas_dialog_token >= 0)
2573 gas_query_stop(wpa_s->gas, wpa_s->dpp_gas_dialog_token);
2574 }
2575
2576
2577 int wpas_dpp_init(struct wpa_supplicant *wpa_s)
2578 {
2579 u8 adv_proto_id[7];
2580
2581 adv_proto_id[0] = WLAN_EID_VENDOR_SPECIFIC;
2582 adv_proto_id[1] = 5;
2583 WPA_PUT_BE24(&adv_proto_id[2], OUI_WFA);
2584 adv_proto_id[5] = DPP_OUI_TYPE;
2585 adv_proto_id[6] = 0x01;
2586
2587 if (gas_server_register(wpa_s->gas_server, adv_proto_id,
2588 sizeof(adv_proto_id), wpas_dpp_gas_req_handler,
2589 wpas_dpp_gas_status_handler, wpa_s) < 0)
2590 return -1;
2591 dl_list_init(&wpa_s->dpp_bootstrap);
2592 dl_list_init(&wpa_s->dpp_configurator);
2593 wpa_s->dpp_init_done = 1;
2594 return 0;
2595 }
2596
2597
2598 void wpas_dpp_deinit(struct wpa_supplicant *wpa_s)
2599 {
2600 #ifdef CONFIG_TESTING_OPTIONS
2601 os_free(wpa_s->dpp_config_obj_override);
2602 wpa_s->dpp_config_obj_override = NULL;
2603 os_free(wpa_s->dpp_discovery_override);
2604 wpa_s->dpp_discovery_override = NULL;
2605 os_free(wpa_s->dpp_groups_override);
2606 wpa_s->dpp_groups_override = NULL;
2607 wpa_s->dpp_ignore_netaccesskey_mismatch = 0;
2608 #endif /* CONFIG_TESTING_OPTIONS */
2609 if (!wpa_s->dpp_init_done)
2610 return;
2611 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
2612 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
2613 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
2614 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
2615 offchannel_send_action_done(wpa_s);
2616 wpas_dpp_listen_stop(wpa_s);
2617 dpp_bootstrap_del(wpa_s, 0);
2618 dpp_configurator_del(wpa_s, 0);
2619 wpas_dpp_stop(wpa_s);
2620 wpas_dpp_pkex_remove(wpa_s, "*");
2621 os_memset(wpa_s->dpp_intro_bssid, 0, ETH_ALEN);
2622 os_free(wpa_s->dpp_configurator_params);
2623 wpa_s->dpp_configurator_params = NULL;
2624 }
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