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