25 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description)  in tls_alert()  argument
27 	conn->alert_level = level;  in tls_alert()
28 	conn->alert_description = description;  in tls_alert()
32 void tlsv1_client_free_dh(struct tlsv1_client *conn)  in tlsv1_client_free_dh()  argument
34 	os_free(conn->dh_p);  in tlsv1_client_free_dh()
35 	os_free(conn->dh_g);  in tlsv1_client_free_dh()
36 	os_free(conn->dh_ys);  in tlsv1_client_free_dh()
37 	conn->dh_p = conn->dh_g = conn->dh_ys = NULL;  in tlsv1_client_free_dh()
41 u16 tls_client_highest_ver(struct tlsv1_client *conn)  in tls_client_highest_ver()  argument
47 	if ((conn->flags & TLS_CONN_DISABLE_TLSv1_2) &&  in tls_client_highest_ver()
52 	if ((conn->flags & TLS_CONN_DISABLE_TLSv1_1) &&  in tls_client_highest_ver()
56 	if ((conn->flags & TLS_CONN_DISABLE_TLSv1_0) &&  in tls_client_highest_ver()
64 int tls_derive_pre_master_secret(struct tlsv1_client *conn,  in tls_derive_pre_master_secret()  argument
67 	WPA_PUT_BE16(pre_master_secret, tls_client_highest_ver(conn));  in tls_derive_pre_master_secret()
75 int tls_derive_keys(struct tlsv1_client *conn,  in tls_derive_keys()  argument
86 		os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);  in tls_derive_keys()
87 		os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,  in tls_derive_keys()
89 		if (tls_prf(conn->rl.tls_version,  in tls_derive_keys()
92 			    conn->master_secret, TLS_MASTER_SECRET_LEN)) {  in tls_derive_keys()
98 				conn->master_secret, TLS_MASTER_SECRET_LEN);  in tls_derive_keys()
101 	os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);  in tls_derive_keys()
102 	os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random, TLS_RANDOM_LEN);  in tls_derive_keys()
103 	key_block_len = 2 * (conn->rl.hash_size + conn->rl.key_material_len);  in tls_derive_keys()
104 	if (conn->rl.tls_version == TLS_VERSION_1)  in tls_derive_keys()
105 		key_block_len += 2 * conn->rl.iv_size;  in tls_derive_keys()
106 	if (tls_prf(conn->rl.tls_version,  in tls_derive_keys()
107 		    conn->master_secret, TLS_MASTER_SECRET_LEN,  in tls_derive_keys()
119 	os_memcpy(conn->rl.write_mac_secret, pos, conn->rl.hash_size);  in tls_derive_keys()
120 	pos += conn->rl.hash_size;  in tls_derive_keys()
122 	os_memcpy(conn->rl.read_mac_secret, pos, conn->rl.hash_size);  in tls_derive_keys()
123 	pos += conn->rl.hash_size;  in tls_derive_keys()
126 	os_memcpy(conn->rl.write_key, pos, conn->rl.key_material_len);  in tls_derive_keys()
127 	pos += conn->rl.key_material_len;  in tls_derive_keys()
129 	os_memcpy(conn->rl.read_key, pos, conn->rl.key_material_len);  in tls_derive_keys()
130 	pos += conn->rl.key_material_len;  in tls_derive_keys()
132 	if (conn->rl.tls_version == TLS_VERSION_1) {  in tls_derive_keys()
134 		os_memcpy(conn->rl.write_iv, pos, conn->rl.iv_size);  in tls_derive_keys()
135 		pos += conn->rl.iv_size;  in tls_derive_keys()
137 		os_memcpy(conn->rl.read_iv, pos, conn->rl.iv_size);  in tls_derive_keys()
144 		os_memset(conn->rl.write_iv, 0, conn->rl.iv_size);  in tls_derive_keys()
163 u8 * tlsv1_client_handshake(struct tlsv1_client *conn,  in tlsv1_client_handshake()  argument
177 	if (conn->state == CLIENT_HELLO) {  in tlsv1_client_handshake()
180 		return tls_send_client_hello(conn, out_len);  in tlsv1_client_handshake()
183 	if (conn->partial_input) {  in tlsv1_client_handshake()
184 		if (wpabuf_resize(&conn->partial_input, in_len) < 0) {  in tlsv1_client_handshake()
187 			tls_alert(conn, TLS_ALERT_LEVEL_FATAL,  in tlsv1_client_handshake()
191 		wpabuf_put_data(conn->partial_input, in_data, in_len);  in tlsv1_client_handshake()
192 		in_data = wpabuf_head(conn->partial_input);  in tlsv1_client_handshake()
193 		in_len = wpabuf_len(conn->partial_input);  in tlsv1_client_handshake()
208 		used = tlsv1_record_receive(&conn->rl, pos, end - pos,  in tlsv1_client_handshake()
213 			tls_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);  in tlsv1_client_handshake()
220 			wpabuf_free(conn->partial_input);  in tlsv1_client_handshake()
221 			conn->partial_input = partial;  in tlsv1_client_handshake()
222 			if (conn->partial_input == NULL) {  in tlsv1_client_handshake()
226 				tls_alert(conn, TLS_ALERT_LEVEL_FATAL,  in tlsv1_client_handshake()
244 			if (tlsv1_client_process_handshake(conn, ct, in_pos,  in tlsv1_client_handshake()
259 	msg = tlsv1_client_handshake_write(conn, out_len, no_appl_data);  in tlsv1_client_handshake()
263 	if (conn->alert_level) {  in tlsv1_client_handshake()
264 		wpabuf_free(conn->partial_input);  in tlsv1_client_handshake()
265 		conn->partial_input = NULL;  in tlsv1_client_handshake()
266 		conn->state = FAILED;  in tlsv1_client_handshake()
268 		msg = tlsv1_client_send_alert(conn, conn->alert_level,  in tlsv1_client_handshake()
269 					      conn->alert_description,  in tlsv1_client_handshake()
277 		wpabuf_free(conn->partial_input);  in tlsv1_client_handshake()
278 		conn->partial_input = NULL;  in tlsv1_client_handshake()
297 int tlsv1_client_encrypt(struct tlsv1_client *conn,  in tlsv1_client_encrypt()  argument
306 	if (tlsv1_record_send(&conn->rl, TLS_CONTENT_TYPE_APPLICATION_DATA,  in tlsv1_client_encrypt()
309 		tls_alert(conn, TLS_ALERT_LEVEL_FATAL,  in tlsv1_client_encrypt()
330 struct wpabuf * tlsv1_client_decrypt(struct tlsv1_client *conn,  in tlsv1_client_decrypt()  argument
343 	if (conn->partial_input) {  in tlsv1_client_decrypt()
344 		if (wpabuf_resize(&conn->partial_input, in_len) < 0) {  in tlsv1_client_decrypt()
350 		wpabuf_put_data(conn->partial_input, in_data, in_len);  in tlsv1_client_decrypt()
351 		in_data = wpabuf_head(conn->partial_input);  in tlsv1_client_decrypt()
352 		in_len = wpabuf_len(conn->partial_input);  in tlsv1_client_decrypt()
366 		used = tlsv1_record_receive(&conn->rl, pos, in_end - pos,  in tlsv1_client_decrypt()
377 			wpabuf_free(conn->partial_input);  in tlsv1_client_decrypt()
378 			conn->partial_input = partial;  in tlsv1_client_decrypt()
379 			if (conn->partial_input == NULL) {  in tlsv1_client_decrypt()
423 	wpabuf_free(conn->partial_input);  in tlsv1_client_decrypt()
424 	conn->partial_input = NULL;  in tlsv1_client_decrypt()
429 	wpabuf_free(conn->partial_input);  in tlsv1_client_decrypt()
430 	conn->partial_input = NULL;  in tlsv1_client_decrypt()
431 	tls_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);  in tlsv1_client_decrypt()
467 	struct tlsv1_client *conn;  in tlsv1_client_init()  local
471 	conn = os_zalloc(sizeof(*conn));  in tlsv1_client_init()
472 	if (conn == NULL)  in tlsv1_client_init()
475 	conn->state = CLIENT_HELLO;  in tlsv1_client_init()
477 	if (tls_verify_hash_init(&conn->verify) < 0) {  in tlsv1_client_init()
480 		os_free(conn);  in tlsv1_client_init()
485 	suites = conn->cipher_suites;  in tlsv1_client_init()
498 	conn->num_cipher_suites = count;  in tlsv1_client_init()
500 	conn->rl.tls_version = TLS_VERSION;  in tlsv1_client_init()
502 	return conn;  in tlsv1_client_init()
510 void tlsv1_client_deinit(struct tlsv1_client *conn)  in tlsv1_client_deinit()  argument
512 	crypto_public_key_free(conn->server_rsa_key);  in tlsv1_client_deinit()
513 	tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);  in tlsv1_client_deinit()
514 	tlsv1_record_change_write_cipher(&conn->rl);  in tlsv1_client_deinit()
515 	tlsv1_record_change_read_cipher(&conn->rl);  in tlsv1_client_deinit()
516 	tls_verify_hash_free(&conn->verify);  in tlsv1_client_deinit()
517 	os_free(conn->client_hello_ext);  in tlsv1_client_deinit()
518 	tlsv1_client_free_dh(conn);  in tlsv1_client_deinit()
519 	tlsv1_cred_free(conn->cred);  in tlsv1_client_deinit()
520 	wpabuf_free(conn->partial_input);  in tlsv1_client_deinit()
521 	x509_certificate_chain_free(conn->server_cert);  in tlsv1_client_deinit()
522 	os_free(conn);  in tlsv1_client_deinit()
531 int tlsv1_client_established(struct tlsv1_client *conn)  in tlsv1_client_established()  argument
533 	return conn->state == ESTABLISHED;  in tlsv1_client_established()
549 int tlsv1_client_prf(struct tlsv1_client *conn, const char *label,  in tlsv1_client_prf()  argument
557 	if (conn->state != ESTABLISHED)  in tlsv1_client_prf()
571 		os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);  in tlsv1_client_prf()
572 		os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random,  in tlsv1_client_prf()
575 		os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);  in tlsv1_client_prf()
576 		os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,  in tlsv1_client_prf()
587 	res = tls_prf(conn->rl.tls_version,  in tlsv1_client_prf()
588 		      conn->master_secret, TLS_MASTER_SECRET_LEN,  in tlsv1_client_prf()
604 int tlsv1_client_get_cipher(struct tlsv1_client *conn, char *buf,  in tlsv1_client_get_cipher()  argument
609 	switch (conn->rl.cipher_suite) {  in tlsv1_client_get_cipher()
688 int tlsv1_client_shutdown(struct tlsv1_client *conn)  in tlsv1_client_shutdown()  argument
690 	conn->state = CLIENT_HELLO;  in tlsv1_client_shutdown()
692 	if (tls_verify_hash_init(&conn->verify) < 0) {  in tlsv1_client_shutdown()
698 	tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);  in tlsv1_client_shutdown()
699 	tlsv1_record_change_write_cipher(&conn->rl);  in tlsv1_client_shutdown()
700 	tlsv1_record_change_read_cipher(&conn->rl);  in tlsv1_client_shutdown()
702 	conn->certificate_requested = 0;  in tlsv1_client_shutdown()
703 	crypto_public_key_free(conn->server_rsa_key);  in tlsv1_client_shutdown()
704 	conn->server_rsa_key = NULL;  in tlsv1_client_shutdown()
705 	conn->session_resumed = 0;  in tlsv1_client_shutdown()
716 int tlsv1_client_resumed(struct tlsv1_client *conn)  in tlsv1_client_resumed()  argument
718 	return !!conn->session_resumed;  in tlsv1_client_resumed()
730 int tlsv1_client_hello_ext(struct tlsv1_client *conn, int ext_type,  in tlsv1_client_hello_ext()  argument
735 	conn->session_ticket_included = 0;  in tlsv1_client_hello_ext()
736 	os_free(conn->client_hello_ext);  in tlsv1_client_hello_ext()
737 	conn->client_hello_ext = NULL;  in tlsv1_client_hello_ext()
738 	conn->client_hello_ext_len = 0;  in tlsv1_client_hello_ext()
743 	pos = conn->client_hello_ext = os_malloc(4 + data_len);  in tlsv1_client_hello_ext()
752 	conn->client_hello_ext_len = 4 + data_len;  in tlsv1_client_hello_ext()
755 		conn->session_ticket_included = 1;  in tlsv1_client_hello_ext()
769 int tlsv1_client_get_random(struct tlsv1_client *conn, struct tls_random *keys)  in tlsv1_client_get_random()  argument
772 	if (conn->state == CLIENT_HELLO)  in tlsv1_client_get_random()
775 	keys->client_random = conn->client_random;  in tlsv1_client_get_random()
778 	if (conn->state != SERVER_HELLO) {  in tlsv1_client_get_random()
779 		keys->server_random = conn->server_random;  in tlsv1_client_get_random()
793 int tlsv1_client_get_keyblock_size(struct tlsv1_client *conn)  in tlsv1_client_get_keyblock_size()  argument
795 	if (conn->state == CLIENT_HELLO || conn->state == SERVER_HELLO)  in tlsv1_client_get_keyblock_size()
798 	return 2 * (conn->rl.hash_size + conn->rl.key_material_len +  in tlsv1_client_get_keyblock_size()
799 		    conn->rl.iv_size);  in tlsv1_client_get_keyblock_size()
810 int tlsv1_client_set_cipher_list(struct tlsv1_client *conn, u8 *ciphers)  in tlsv1_client_set_cipher_list()  argument
818 		suites = conn->cipher_suites;  in tlsv1_client_set_cipher_list()
837 		conn->num_cipher_suites = count;  in tlsv1_client_set_cipher_list()
854 int tlsv1_client_set_cred(struct tlsv1_client *conn,  in tlsv1_client_set_cred()  argument
857 	tlsv1_cred_free(conn->cred);  in tlsv1_client_set_cred()
858 	conn->cred = cred;  in tlsv1_client_set_cred()
868 void tlsv1_client_set_flags(struct tlsv1_client *conn, unsigned int flags)  in tlsv1_client_set_flags()  argument
870 	conn->flags = flags;  in tlsv1_client_set_flags()
871 	conn->rl.tls_version = tls_client_highest_ver(conn);  in tlsv1_client_set_flags()
875 void tlsv1_client_set_session_ticket_cb(struct tlsv1_client *conn,  in tlsv1_client_set_session_ticket_cb()  argument
881 	conn->session_ticket_cb = cb;  in tlsv1_client_set_session_ticket_cb()
882 	conn->session_ticket_cb_ctx = ctx;  in tlsv1_client_set_session_ticket_cb()
886 void tlsv1_client_set_cb(struct tlsv1_client *conn,  in tlsv1_client_set_cb()  argument
892 	conn->event_cb = event_cb;  in tlsv1_client_set_cb()
893 	conn->cb_ctx = cb_ctx;  in tlsv1_client_set_cb()
894 	conn->cert_in_cb = !!cert_in_cb;  in tlsv1_client_set_cb()
898 int tlsv1_client_get_version(struct tlsv1_client *conn, char *buf,  in tlsv1_client_get_version()  argument
901 	if (!conn)  in tlsv1_client_get_version()
903 	switch (conn->rl.tls_version) {  in tlsv1_client_get_version()