xref: /netbsd/external/bsd/wpa/dist/src/common/dpp.h (revision 0d69f216)
1 /*
2  * DPP functionality shared between hostapd and wpa_supplicant
3  * Copyright (c) 2017, Qualcomm Atheros, Inc.
4  * Copyright (c) 2018-2019, 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 #ifndef DPP_H
11 #define DPP_H
12 
13 #ifdef CONFIG_DPP
14 #include <openssl/x509.h>
15 
16 #include "utils/list.h"
17 #include "common/wpa_common.h"
18 #include "crypto/sha256.h"
19 
20 struct crypto_ecdh;
21 struct hostapd_ip_addr;
22 struct dpp_global;
23 
24 #define DPP_HDR_LEN (4 + 2) /* OUI, OUI Type, Crypto Suite, DPP frame type */
25 #define DPP_TCP_PORT 7871
26 
27 enum dpp_public_action_frame_type {
28 	DPP_PA_AUTHENTICATION_REQ = 0,
29 	DPP_PA_AUTHENTICATION_RESP = 1,
30 	DPP_PA_AUTHENTICATION_CONF = 2,
31 	DPP_PA_PEER_DISCOVERY_REQ = 5,
32 	DPP_PA_PEER_DISCOVERY_RESP = 6,
33 	DPP_PA_PKEX_EXCHANGE_REQ = 7,
34 	DPP_PA_PKEX_EXCHANGE_RESP = 8,
35 	DPP_PA_PKEX_COMMIT_REVEAL_REQ = 9,
36 	DPP_PA_PKEX_COMMIT_REVEAL_RESP = 10,
37 	DPP_PA_CONFIGURATION_RESULT = 11,
38 };
39 
40 enum dpp_attribute_id {
41 	DPP_ATTR_STATUS = 0x1000,
42 	DPP_ATTR_I_BOOTSTRAP_KEY_HASH = 0x1001,
43 	DPP_ATTR_R_BOOTSTRAP_KEY_HASH = 0x1002,
44 	DPP_ATTR_I_PROTOCOL_KEY = 0x1003,
45 	DPP_ATTR_WRAPPED_DATA = 0x1004,
46 	DPP_ATTR_I_NONCE = 0x1005,
47 	DPP_ATTR_I_CAPABILITIES = 0x1006,
48 	DPP_ATTR_R_NONCE = 0x1007,
49 	DPP_ATTR_R_CAPABILITIES = 0x1008,
50 	DPP_ATTR_R_PROTOCOL_KEY = 0x1009,
51 	DPP_ATTR_I_AUTH_TAG = 0x100A,
52 	DPP_ATTR_R_AUTH_TAG = 0x100B,
53 	DPP_ATTR_CONFIG_OBJ = 0x100C,
54 	DPP_ATTR_CONNECTOR = 0x100D,
55 	DPP_ATTR_CONFIG_ATTR_OBJ = 0x100E,
56 	DPP_ATTR_BOOTSTRAP_KEY = 0x100F,
57 	DPP_ATTR_OWN_NET_NK_HASH = 0x1011,
58 	DPP_ATTR_FINITE_CYCLIC_GROUP = 0x1012,
59 	DPP_ATTR_ENCRYPTED_KEY = 0x1013,
60 	DPP_ATTR_ENROLLEE_NONCE = 0x1014,
61 	DPP_ATTR_CODE_IDENTIFIER = 0x1015,
62 	DPP_ATTR_TRANSACTION_ID = 0x1016,
63 	DPP_ATTR_BOOTSTRAP_INFO = 0x1017,
64 	DPP_ATTR_CHANNEL = 0x1018,
65 	DPP_ATTR_PROTOCOL_VERSION = 0x1019,
66 	DPP_ATTR_ENVELOPED_DATA = 0x101A,
67 };
68 
69 enum dpp_status_error {
70 	DPP_STATUS_OK = 0,
71 	DPP_STATUS_NOT_COMPATIBLE = 1,
72 	DPP_STATUS_AUTH_FAILURE = 2,
73 	DPP_STATUS_UNWRAP_FAILURE = 3,
74 	DPP_STATUS_BAD_GROUP = 4,
75 	DPP_STATUS_CONFIGURE_FAILURE = 5,
76 	DPP_STATUS_RESPONSE_PENDING = 6,
77 	DPP_STATUS_INVALID_CONNECTOR = 7,
78 	DPP_STATUS_NO_MATCH = 8,
79 	DPP_STATUS_CONFIG_REJECTED = 9,
80 };
81 
82 #define DPP_CAPAB_ENROLLEE BIT(0)
83 #define DPP_CAPAB_CONFIGURATOR BIT(1)
84 #define DPP_CAPAB_ROLE_MASK (BIT(0) | BIT(1))
85 
86 #define DPP_BOOTSTRAP_MAX_FREQ 30
87 #define DPP_MAX_NONCE_LEN 32
88 #define DPP_MAX_HASH_LEN 64
89 #define DPP_MAX_SHARED_SECRET_LEN 66
90 
91 struct dpp_curve_params {
92 	const char *name;
93 	size_t hash_len;
94 	size_t aes_siv_key_len;
95 	size_t nonce_len;
96 	size_t prime_len;
97 	const char *jwk_crv;
98 	u16 ike_group;
99 	const char *jws_alg;
100 };
101 
102 enum dpp_bootstrap_type {
103 	DPP_BOOTSTRAP_QR_CODE,
104 	DPP_BOOTSTRAP_PKEX,
105 };
106 
107 struct dpp_bootstrap_info {
108 	struct dl_list list;
109 	unsigned int id;
110 	enum dpp_bootstrap_type type;
111 	char *uri;
112 	u8 mac_addr[ETH_ALEN];
113 	char *info;
114 	unsigned int freq[DPP_BOOTSTRAP_MAX_FREQ];
115 	unsigned int num_freq;
116 	int own;
117 	EVP_PKEY *pubkey;
118 	u8 pubkey_hash[SHA256_MAC_LEN];
119 	const struct dpp_curve_params *curve;
120 	unsigned int pkex_t; /* number of failures before dpp_pkex
121 			      * instantiation */
122 };
123 
124 #define PKEX_COUNTER_T_LIMIT 5
125 
126 struct dpp_pkex {
127 	void *msg_ctx;
128 	unsigned int initiator:1;
129 	unsigned int exchange_done:1;
130 	unsigned int failed:1;
131 	struct dpp_bootstrap_info *own_bi;
132 	u8 own_mac[ETH_ALEN];
133 	u8 peer_mac[ETH_ALEN];
134 	char *identifier;
135 	char *code;
136 	EVP_PKEY *x;
137 	EVP_PKEY *y;
138 	u8 Mx[DPP_MAX_SHARED_SECRET_LEN];
139 	u8 Nx[DPP_MAX_SHARED_SECRET_LEN];
140 	u8 z[DPP_MAX_HASH_LEN];
141 	EVP_PKEY *peer_bootstrap_key;
142 	struct wpabuf *exchange_req;
143 	struct wpabuf *exchange_resp;
144 	unsigned int t; /* number of failures on code use */
145 	unsigned int exch_req_wait_time;
146 	unsigned int exch_req_tries;
147 	unsigned int freq;
148 };
149 
150 enum dpp_akm {
151 	DPP_AKM_UNKNOWN,
152 	DPP_AKM_DPP,
153 	DPP_AKM_PSK,
154 	DPP_AKM_SAE,
155 	DPP_AKM_PSK_SAE,
156 	DPP_AKM_SAE_DPP,
157 	DPP_AKM_PSK_SAE_DPP,
158 };
159 
160 struct dpp_configuration {
161 	u8 ssid[32];
162 	size_t ssid_len;
163 	enum dpp_akm akm;
164 
165 	/* For DPP configuration (connector) */
166 	os_time_t netaccesskey_expiry;
167 
168 	/* TODO: groups */
169 	char *group_id;
170 
171 	/* For legacy configuration */
172 	char *passphrase;
173 	u8 psk[32];
174 	int psk_set;
175 };
176 
177 struct dpp_authentication {
178 	void *msg_ctx;
179 	u8 peer_version;
180 	const struct dpp_curve_params *curve;
181 	struct dpp_bootstrap_info *peer_bi;
182 	struct dpp_bootstrap_info *own_bi;
183 	struct dpp_bootstrap_info *tmp_own_bi;
184 	u8 waiting_pubkey_hash[SHA256_MAC_LEN];
185 	int response_pending;
186 	enum dpp_status_error auth_resp_status;
187 	enum dpp_status_error conf_resp_status;
188 	u8 peer_mac_addr[ETH_ALEN];
189 	u8 i_nonce[DPP_MAX_NONCE_LEN];
190 	u8 r_nonce[DPP_MAX_NONCE_LEN];
191 	u8 e_nonce[DPP_MAX_NONCE_LEN];
192 	u8 i_capab;
193 	u8 r_capab;
194 	EVP_PKEY *own_protocol_key;
195 	EVP_PKEY *peer_protocol_key;
196 	struct wpabuf *req_msg;
197 	struct wpabuf *resp_msg;
198 	/* Intersection of possible frequencies for initiating DPP
199 	 * Authentication exchange */
200 	unsigned int freq[DPP_BOOTSTRAP_MAX_FREQ];
201 	unsigned int num_freq, freq_idx;
202 	unsigned int curr_freq;
203 	unsigned int neg_freq;
204 	unsigned int num_freq_iters;
205 	size_t secret_len;
206 	u8 Mx[DPP_MAX_SHARED_SECRET_LEN];
207 	size_t Mx_len;
208 	u8 Nx[DPP_MAX_SHARED_SECRET_LEN];
209 	size_t Nx_len;
210 	u8 Lx[DPP_MAX_SHARED_SECRET_LEN];
211 	size_t Lx_len;
212 	u8 k1[DPP_MAX_HASH_LEN];
213 	u8 k2[DPP_MAX_HASH_LEN];
214 	u8 ke[DPP_MAX_HASH_LEN];
215 	int initiator;
216 	int waiting_auth_resp;
217 	int waiting_auth_conf;
218 	int auth_req_ack;
219 	unsigned int auth_resp_tries;
220 	u8 allowed_roles;
221 	int configurator;
222 	int remove_on_tx_status;
223 	int connect_on_tx_status;
224 	int waiting_conf_result;
225 	int auth_success;
226 	struct wpabuf *conf_req;
227 	const struct wpabuf *conf_resp; /* owned by GAS server */
228 	struct dpp_configuration *conf_ap;
229 	struct dpp_configuration *conf_sta;
230 	struct dpp_configurator *conf;
231 	char *connector; /* received signedConnector */
232 	u8 ssid[SSID_MAX_LEN];
233 	u8 ssid_len;
234 	char passphrase[64];
235 	u8 psk[PMK_LEN];
236 	int psk_set;
237 	enum dpp_akm akm;
238 	struct wpabuf *net_access_key;
239 	os_time_t net_access_key_expiry;
240 	struct wpabuf *c_sign_key;
241 #ifdef CONFIG_TESTING_OPTIONS
242 	char *config_obj_override;
243 	char *discovery_override;
244 	char *groups_override;
245 	unsigned int ignore_netaccesskey_mismatch:1;
246 #endif /* CONFIG_TESTING_OPTIONS */
247 };
248 
249 struct dpp_configurator {
250 	struct dl_list list;
251 	unsigned int id;
252 	int own;
253 	EVP_PKEY *csign;
254 	char *kid;
255 	const struct dpp_curve_params *curve;
256 };
257 
258 struct dpp_introduction {
259 	u8 pmkid[PMKID_LEN];
260 	u8 pmk[PMK_LEN_MAX];
261 	size_t pmk_len;
262 };
263 
264 struct dpp_relay_config {
265 	const struct hostapd_ip_addr *ipaddr;
266 	const u8 *pkhash;
267 
268 	void *cb_ctx;
269 	void (*tx)(void *ctx, const u8 *addr, unsigned int freq, const u8 *msg,
270 		   size_t len);
271 	void (*gas_resp_tx)(void *ctx, const u8 *addr, u8 dialog_token, int prot,
272 			    struct wpabuf *buf);
273 };
274 
275 struct dpp_controller_config {
276 	const char *configurator_params;
277 	int tcp_port;
278 };
279 
280 #ifdef CONFIG_TESTING_OPTIONS
281 enum dpp_test_behavior {
282 	DPP_TEST_DISABLED = 0,
283 	DPP_TEST_AFTER_WRAPPED_DATA_AUTH_REQ = 1,
284 	DPP_TEST_AFTER_WRAPPED_DATA_AUTH_RESP = 2,
285 	DPP_TEST_AFTER_WRAPPED_DATA_AUTH_CONF = 3,
286 	DPP_TEST_AFTER_WRAPPED_DATA_PKEX_CR_REQ = 4,
287 	DPP_TEST_AFTER_WRAPPED_DATA_PKEX_CR_RESP = 5,
288 	DPP_TEST_AFTER_WRAPPED_DATA_CONF_REQ = 6,
289 	DPP_TEST_AFTER_WRAPPED_DATA_CONF_RESP = 7,
290 	DPP_TEST_ZERO_I_CAPAB = 8,
291 	DPP_TEST_ZERO_R_CAPAB = 9,
292 	DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_REQ = 10,
293 	DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_REQ = 11,
294 	DPP_TEST_NO_I_PROTO_KEY_AUTH_REQ = 12,
295 	DPP_TEST_NO_I_NONCE_AUTH_REQ = 13,
296 	DPP_TEST_NO_I_CAPAB_AUTH_REQ = 14,
297 	DPP_TEST_NO_WRAPPED_DATA_AUTH_REQ = 15,
298 	DPP_TEST_NO_STATUS_AUTH_RESP = 16,
299 	DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_RESP = 17,
300 	DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_RESP = 18,
301 	DPP_TEST_NO_R_PROTO_KEY_AUTH_RESP = 19,
302 	DPP_TEST_NO_R_NONCE_AUTH_RESP = 20,
303 	DPP_TEST_NO_I_NONCE_AUTH_RESP = 21,
304 	DPP_TEST_NO_R_CAPAB_AUTH_RESP = 22,
305 	DPP_TEST_NO_R_AUTH_AUTH_RESP = 23,
306 	DPP_TEST_NO_WRAPPED_DATA_AUTH_RESP = 24,
307 	DPP_TEST_NO_STATUS_AUTH_CONF = 25,
308 	DPP_TEST_NO_R_BOOTSTRAP_KEY_HASH_AUTH_CONF = 26,
309 	DPP_TEST_NO_I_BOOTSTRAP_KEY_HASH_AUTH_CONF = 27,
310 	DPP_TEST_NO_I_AUTH_AUTH_CONF = 28,
311 	DPP_TEST_NO_WRAPPED_DATA_AUTH_CONF = 29,
312 	DPP_TEST_I_NONCE_MISMATCH_AUTH_RESP = 30,
313 	DPP_TEST_INCOMPATIBLE_R_CAPAB_AUTH_RESP = 31,
314 	DPP_TEST_R_AUTH_MISMATCH_AUTH_RESP = 32,
315 	DPP_TEST_I_AUTH_MISMATCH_AUTH_CONF = 33,
316 	DPP_TEST_NO_FINITE_CYCLIC_GROUP_PKEX_EXCHANGE_REQ = 34,
317 	DPP_TEST_NO_ENCRYPTED_KEY_PKEX_EXCHANGE_REQ = 35,
318 	DPP_TEST_NO_STATUS_PKEX_EXCHANGE_RESP = 36,
319 	DPP_TEST_NO_ENCRYPTED_KEY_PKEX_EXCHANGE_RESP = 37,
320 	DPP_TEST_NO_BOOTSTRAP_KEY_PKEX_CR_REQ = 38,
321 	DPP_TEST_NO_I_AUTH_TAG_PKEX_CR_REQ = 39,
322 	DPP_TEST_NO_WRAPPED_DATA_PKEX_CR_REQ = 40,
323 	DPP_TEST_NO_BOOTSTRAP_KEY_PKEX_CR_RESP = 41,
324 	DPP_TEST_NO_R_AUTH_TAG_PKEX_CR_RESP = 42,
325 	DPP_TEST_NO_WRAPPED_DATA_PKEX_CR_RESP = 43,
326 	DPP_TEST_INVALID_ENCRYPTED_KEY_PKEX_EXCHANGE_REQ = 44,
327 	DPP_TEST_INVALID_ENCRYPTED_KEY_PKEX_EXCHANGE_RESP = 45,
328 	DPP_TEST_INVALID_STATUS_PKEX_EXCHANGE_RESP = 46,
329 	DPP_TEST_INVALID_BOOTSTRAP_KEY_PKEX_CR_REQ = 47,
330 	DPP_TEST_INVALID_BOOTSTRAP_KEY_PKEX_CR_RESP = 48,
331 	DPP_TEST_I_AUTH_TAG_MISMATCH_PKEX_CR_REQ = 49,
332 	DPP_TEST_R_AUTH_TAG_MISMATCH_PKEX_CR_RESP = 50,
333 	DPP_TEST_NO_E_NONCE_CONF_REQ = 51,
334 	DPP_TEST_NO_CONFIG_ATTR_OBJ_CONF_REQ = 52,
335 	DPP_TEST_NO_WRAPPED_DATA_CONF_REQ = 53,
336 	DPP_TEST_NO_E_NONCE_CONF_RESP = 54,
337 	DPP_TEST_NO_CONFIG_OBJ_CONF_RESP = 55,
338 	DPP_TEST_NO_STATUS_CONF_RESP = 56,
339 	DPP_TEST_NO_WRAPPED_DATA_CONF_RESP = 57,
340 	DPP_TEST_INVALID_STATUS_CONF_RESP = 58,
341 	DPP_TEST_E_NONCE_MISMATCH_CONF_RESP = 59,
342 	DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ = 60,
343 	DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ = 61,
344 	DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_RESP = 62,
345 	DPP_TEST_NO_STATUS_PEER_DISC_RESP = 63,
346 	DPP_TEST_NO_CONNECTOR_PEER_DISC_RESP = 64,
347 	DPP_TEST_AUTH_RESP_IN_PLACE_OF_CONF = 65,
348 	DPP_TEST_INVALID_I_PROTO_KEY_AUTH_REQ = 66,
349 	DPP_TEST_INVALID_R_PROTO_KEY_AUTH_RESP = 67,
350 	DPP_TEST_INVALID_R_BOOTSTRAP_KEY_HASH_AUTH_REQ = 68,
351 	DPP_TEST_INVALID_I_BOOTSTRAP_KEY_HASH_AUTH_REQ = 69,
352 	DPP_TEST_INVALID_R_BOOTSTRAP_KEY_HASH_AUTH_RESP = 70,
353 	DPP_TEST_INVALID_I_BOOTSTRAP_KEY_HASH_AUTH_RESP = 71,
354 	DPP_TEST_INVALID_R_BOOTSTRAP_KEY_HASH_AUTH_CONF = 72,
355 	DPP_TEST_INVALID_I_BOOTSTRAP_KEY_HASH_AUTH_CONF = 73,
356 	DPP_TEST_INVALID_STATUS_AUTH_RESP = 74,
357 	DPP_TEST_INVALID_STATUS_AUTH_CONF = 75,
358 	DPP_TEST_INVALID_CONFIG_ATTR_OBJ_CONF_REQ = 76,
359 	DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_RESP = 77,
360 	DPP_TEST_INVALID_STATUS_PEER_DISC_RESP = 78,
361 	DPP_TEST_INVALID_CONNECTOR_PEER_DISC_RESP = 79,
362 	DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ = 80,
363 	DPP_TEST_INVALID_I_NONCE_AUTH_REQ = 81,
364 	DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ = 82,
365 	DPP_TEST_INVALID_E_NONCE_CONF_REQ = 83,
366 	DPP_TEST_STOP_AT_PKEX_EXCHANGE_RESP = 84,
367 	DPP_TEST_STOP_AT_PKEX_CR_REQ = 85,
368 	DPP_TEST_STOP_AT_PKEX_CR_RESP = 86,
369 	DPP_TEST_STOP_AT_AUTH_REQ = 87,
370 	DPP_TEST_STOP_AT_AUTH_RESP = 88,
371 	DPP_TEST_STOP_AT_AUTH_CONF = 89,
372 	DPP_TEST_STOP_AT_CONF_REQ = 90,
373 	DPP_TEST_REJECT_CONFIG = 91,
374 };
375 
376 extern enum dpp_test_behavior dpp_test;
377 extern u8 dpp_pkex_own_mac_override[ETH_ALEN];
378 extern u8 dpp_pkex_peer_mac_override[ETH_ALEN];
379 extern u8 dpp_pkex_ephemeral_key_override[600];
380 extern size_t dpp_pkex_ephemeral_key_override_len;
381 extern u8 dpp_protocol_key_override[600];
382 extern size_t dpp_protocol_key_override_len;
383 extern u8 dpp_nonce_override[DPP_MAX_NONCE_LEN];
384 extern size_t dpp_nonce_override_len;
385 #endif /* CONFIG_TESTING_OPTIONS */
386 
387 void dpp_bootstrap_info_free(struct dpp_bootstrap_info *info);
388 const char * dpp_bootstrap_type_txt(enum dpp_bootstrap_type type);
389 int dpp_bootstrap_key_hash(struct dpp_bootstrap_info *bi);
390 int dpp_parse_uri_chan_list(struct dpp_bootstrap_info *bi,
391 			    const char *chan_list);
392 int dpp_parse_uri_mac(struct dpp_bootstrap_info *bi, const char *mac);
393 int dpp_parse_uri_info(struct dpp_bootstrap_info *bi, const char *info);
394 struct dpp_bootstrap_info * dpp_parse_qr_code(const char *uri);
395 char * dpp_keygen(struct dpp_bootstrap_info *bi, const char *curve,
396 		  const u8 *privkey, size_t privkey_len);
397 struct hostapd_hw_modes;
398 struct dpp_authentication * dpp_auth_init(void *msg_ctx,
399 					  struct dpp_bootstrap_info *peer_bi,
400 					  struct dpp_bootstrap_info *own_bi,
401 					  u8 dpp_allowed_roles,
402 					  unsigned int neg_freq,
403 					  struct hostapd_hw_modes *own_modes,
404 					  u16 num_modes);
405 struct dpp_authentication *
406 dpp_auth_req_rx(void *msg_ctx, u8 dpp_allowed_roles, int qr_mutual,
407 		struct dpp_bootstrap_info *peer_bi,
408 		struct dpp_bootstrap_info *own_bi,
409 		unsigned int freq, const u8 *hdr, const u8 *attr_start,
410 		size_t attr_len);
411 struct wpabuf *
412 dpp_auth_resp_rx(struct dpp_authentication *auth, const u8 *hdr,
413 		 const u8 *attr_start, size_t attr_len);
414 struct wpabuf * dpp_build_conf_req(struct dpp_authentication *auth,
415 				   const char *json);
416 int dpp_auth_conf_rx(struct dpp_authentication *auth, const u8 *hdr,
417 		     const u8 *attr_start, size_t attr_len);
418 int dpp_notify_new_qr_code(struct dpp_authentication *auth,
419 			   struct dpp_bootstrap_info *peer_bi);
420 struct dpp_configuration * dpp_configuration_alloc(const char *type);
421 int dpp_akm_psk(enum dpp_akm akm);
422 int dpp_akm_sae(enum dpp_akm akm);
423 int dpp_akm_legacy(enum dpp_akm akm);
424 int dpp_akm_dpp(enum dpp_akm akm);
425 int dpp_akm_ver2(enum dpp_akm akm);
426 int dpp_configuration_valid(const struct dpp_configuration *conf);
427 void dpp_configuration_free(struct dpp_configuration *conf);
428 int dpp_set_configurator(struct dpp_global *dpp, void *msg_ctx,
429 			 struct dpp_authentication *auth,
430 			 const char *cmd);
431 void dpp_auth_deinit(struct dpp_authentication *auth);
432 struct wpabuf *
433 dpp_conf_req_rx(struct dpp_authentication *auth, const u8 *attr_start,
434 		size_t attr_len);
435 int dpp_conf_resp_rx(struct dpp_authentication *auth,
436 		     const struct wpabuf *resp);
437 enum dpp_status_error dpp_conf_result_rx(struct dpp_authentication *auth,
438 					 const u8 *hdr,
439 					 const u8 *attr_start, size_t attr_len);
440 struct wpabuf * dpp_build_conf_result(struct dpp_authentication *auth,
441 				      enum dpp_status_error status);
442 struct wpabuf * dpp_alloc_msg(enum dpp_public_action_frame_type type,
443 			      size_t len);
444 const u8 * dpp_get_attr(const u8 *buf, size_t len, u16 req_id, u16 *ret_len);
445 int dpp_check_attrs(const u8 *buf, size_t len);
446 int dpp_key_expired(const char *timestamp, os_time_t *expiry);
447 const char * dpp_akm_str(enum dpp_akm akm);
448 int dpp_configurator_get_key(const struct dpp_configurator *conf, char *buf,
449 			     size_t buflen);
450 void dpp_configurator_free(struct dpp_configurator *conf);
451 struct dpp_configurator *
452 dpp_keygen_configurator(const char *curve, const u8 *privkey,
453 			size_t privkey_len);
454 int dpp_configurator_own_config(struct dpp_authentication *auth,
455 				const char *curve, int ap);
456 enum dpp_status_error
457 dpp_peer_intro(struct dpp_introduction *intro, const char *own_connector,
458 	       const u8 *net_access_key, size_t net_access_key_len,
459 	       const u8 *csign_key, size_t csign_key_len,
460 	       const u8 *peer_connector, size_t peer_connector_len,
461 	       os_time_t *expiry);
462 struct dpp_pkex * dpp_pkex_init(void *msg_ctx, struct dpp_bootstrap_info *bi,
463 				const u8 *own_mac,
464 				const char *identifier,
465 				const char *code);
466 struct dpp_pkex * dpp_pkex_rx_exchange_req(void *msg_ctx,
467 					   struct dpp_bootstrap_info *bi,
468 					   const u8 *own_mac,
469 					   const u8 *peer_mac,
470 					   const char *identifier,
471 					   const char *code,
472 					   const u8 *buf, size_t len);
473 struct wpabuf * dpp_pkex_rx_exchange_resp(struct dpp_pkex *pkex,
474 					  const u8 *peer_mac,
475 					  const u8 *buf, size_t len);
476 struct wpabuf * dpp_pkex_rx_commit_reveal_req(struct dpp_pkex *pkex,
477 					      const u8 *hdr,
478 					      const u8 *buf, size_t len);
479 int dpp_pkex_rx_commit_reveal_resp(struct dpp_pkex *pkex, const u8 *hdr,
480 				   const u8 *buf, size_t len);
481 void dpp_pkex_free(struct dpp_pkex *pkex);
482 
483 char * dpp_corrupt_connector_signature(const char *connector);
484 
485 
486 struct dpp_pfs {
487 	struct crypto_ecdh *ecdh;
488 	const struct dpp_curve_params *curve;
489 	struct wpabuf *ie;
490 	struct wpabuf *secret;
491 };
492 
493 struct dpp_pfs * dpp_pfs_init(const u8 *net_access_key,
494 			      size_t net_access_key_len);
495 int dpp_pfs_process(struct dpp_pfs *pfs, const u8 *peer_ie, size_t peer_ie_len);
496 void dpp_pfs_free(struct dpp_pfs *pfs);
497 
498 struct dpp_bootstrap_info * dpp_add_qr_code(struct dpp_global *dpp,
499 					    const char *uri);
500 int dpp_bootstrap_gen(struct dpp_global *dpp, const char *cmd);
501 struct dpp_bootstrap_info *
502 dpp_bootstrap_get_id(struct dpp_global *dpp, unsigned int id);
503 int dpp_bootstrap_remove(struct dpp_global *dpp, const char *id);
504 struct dpp_bootstrap_info *
505 dpp_pkex_finish(struct dpp_global *dpp, struct dpp_pkex *pkex, const u8 *peer,
506 		unsigned int freq);
507 const char * dpp_bootstrap_get_uri(struct dpp_global *dpp, unsigned int id);
508 int dpp_bootstrap_info(struct dpp_global *dpp, int id,
509 		       char *reply, int reply_size);
510 void dpp_bootstrap_find_pair(struct dpp_global *dpp, const u8 *i_bootstrap,
511 			     const u8 *r_bootstrap,
512 			     struct dpp_bootstrap_info **own_bi,
513 			     struct dpp_bootstrap_info **peer_bi);
514 int dpp_configurator_add(struct dpp_global *dpp, const char *cmd);
515 int dpp_configurator_remove(struct dpp_global *dpp, const char *id);
516 int dpp_configurator_get_key_id(struct dpp_global *dpp, unsigned int id,
517 				char *buf, size_t buflen);
518 int dpp_relay_add_controller(struct dpp_global *dpp,
519 			     struct dpp_relay_config *config);
520 int dpp_relay_rx_action(struct dpp_global *dpp, const u8 *src, const u8 *hdr,
521 			const u8 *buf, size_t len, unsigned int freq,
522 			const u8 *i_bootstrap, const u8 *r_bootstrap);
523 int dpp_relay_rx_gas_req(struct dpp_global *dpp, const u8 *src, const u8 *data,
524 			 size_t data_len);
525 int dpp_controller_start(struct dpp_global *dpp,
526 			 struct dpp_controller_config *config);
527 void dpp_controller_stop(struct dpp_global *dpp);
528 int dpp_tcp_init(struct dpp_global *dpp, struct dpp_authentication *auth,
529 		 const struct hostapd_ip_addr *addr, int port);
530 
531 struct dpp_global_config {
532 	void *msg_ctx;
533 	void *cb_ctx;
534 	int (*process_conf_obj)(void *ctx, struct dpp_authentication *auth);
535 };
536 
537 struct dpp_global * dpp_global_init(struct dpp_global_config *config);
538 void dpp_global_clear(struct dpp_global *dpp);
539 void dpp_global_deinit(struct dpp_global *dpp);
540 
541 #endif /* CONFIG_DPP */
542 #endif /* DPP_H */
543