2 * TLS v1.0/v1.1/v1.2 client (RFC 2246, RFC 4346, RFC 5246)
3 * Copyright (c) 2006-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #include "crypto/sha1.h"
13 #include "crypto/tls.h"
15 #include "tlsv1_common.h"
16 #include "tlsv1_record.h"
17 #include "tlsv1_client.h"
18 #include "tlsv1_client_i.h"
21 * Support for a message fragmented across several records (RFC 2246, 6.2.1)
25 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description)
27 conn->alert_level = level;
28 conn->alert_description = description;
32 void tlsv1_client_free_dh(struct tlsv1_client *conn)
37 conn->dh_p = conn->dh_g = conn->dh_ys = NULL;
41 int tls_derive_pre_master_secret(u8 *pre_master_secret)
43 WPA_PUT_BE16(pre_master_secret, TLS_VERSION);
44 if (os_get_random(pre_master_secret + 2,
45 TLS_PRE_MASTER_SECRET_LEN - 2))
51 int tls_derive_keys(struct tlsv1_client *conn,
52 const u8 *pre_master_secret, size_t pre_master_secret_len)
54 u8 seed[2 * TLS_RANDOM_LEN];
55 u8 key_block[TLS_MAX_KEY_BLOCK_LEN];
59 if (pre_master_secret) {
60 wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: pre_master_secret",
61 pre_master_secret, pre_master_secret_len);
62 os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);
63 os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,
65 if (tls_prf(conn->rl.tls_version,
66 pre_master_secret, pre_master_secret_len,
67 "master secret", seed, 2 * TLS_RANDOM_LEN,
68 conn->master_secret, TLS_MASTER_SECRET_LEN)) {
69 wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive "
73 wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: master_secret",
74 conn->master_secret, TLS_MASTER_SECRET_LEN);
77 os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);
78 os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random, TLS_RANDOM_LEN);
79 key_block_len = 2 * (conn->rl.hash_size + conn->rl.key_material_len);
80 if (conn->rl.tls_version == TLS_VERSION_1)
81 key_block_len += 2 * conn->rl.iv_size;
82 if (tls_prf(conn->rl.tls_version,
83 conn->master_secret, TLS_MASTER_SECRET_LEN,
84 "key expansion", seed, 2 * TLS_RANDOM_LEN,
85 key_block, key_block_len)) {
86 wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive key_block");
89 wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: key_block",
90 key_block, key_block_len);
94 /* client_write_MAC_secret */
95 os_memcpy(conn->rl.write_mac_secret, pos, conn->rl.hash_size);
96 pos += conn->rl.hash_size;
97 /* server_write_MAC_secret */
98 os_memcpy(conn->rl.read_mac_secret, pos, conn->rl.hash_size);
99 pos += conn->rl.hash_size;
101 /* client_write_key */
102 os_memcpy(conn->rl.write_key, pos, conn->rl.key_material_len);
103 pos += conn->rl.key_material_len;
104 /* server_write_key */
105 os_memcpy(conn->rl.read_key, pos, conn->rl.key_material_len);
106 pos += conn->rl.key_material_len;
108 if (conn->rl.tls_version == TLS_VERSION_1) {
109 /* client_write_IV */
110 os_memcpy(conn->rl.write_iv, pos, conn->rl.iv_size);
111 pos += conn->rl.iv_size;
112 /* server_write_IV */
113 os_memcpy(conn->rl.read_iv, pos, conn->rl.iv_size);
114 pos += conn->rl.iv_size;
117 * Use IV field to set the mask value for TLS v1.1. A fixed
118 * mask of zero is used per the RFC 4346, 6.2.3.2 CBC Block
121 os_memset(conn->rl.write_iv, 0, conn->rl.iv_size);
129 * tlsv1_client_handshake - Process TLS handshake
130 * @conn: TLSv1 client connection data from tlsv1_client_init()
131 * @in_data: Input data from TLS peer
132 * @in_len: Input data length
133 * @out_len: Length of the output buffer.
134 * @appl_data: Pointer to application data pointer, or %NULL if dropped
135 * @appl_data_len: Pointer to variable that is set to appl_data length
136 * @need_more_data: Set to 1 if more data would be needed to complete
138 * Returns: Pointer to output data, %NULL on failure
140 u8 * tlsv1_client_handshake(struct tlsv1_client *conn,
141 const u8 *in_data, size_t in_len,
142 size_t *out_len, u8 **appl_data,
143 size_t *appl_data_len, int *need_more_data)
146 u8 *msg = NULL, *in_msg = NULL, *in_pos, *in_end, alert, ct;
154 if (conn->state == CLIENT_HELLO) {
157 return tls_send_client_hello(conn, out_len);
160 if (conn->partial_input) {
161 if (wpabuf_resize(&conn->partial_input, in_len) < 0) {
162 wpa_printf(MSG_DEBUG, "TLSv1: Failed to allocate "
163 "memory for pending record");
164 tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
165 TLS_ALERT_INTERNAL_ERROR);
168 wpabuf_put_data(conn->partial_input, in_data, in_len);
169 in_data = wpabuf_head(conn->partial_input);
170 in_len = wpabuf_len(conn->partial_input);
173 if (in_data == NULL || in_len == 0)
177 end = in_data + in_len;
178 in_msg = os_malloc(in_len);
182 /* Each received packet may include multiple records */
185 used = tlsv1_record_receive(&conn->rl, pos, end - pos,
186 in_msg, &in_msg_len, &alert);
188 wpa_printf(MSG_DEBUG, "TLSv1: Processing received "
190 tls_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
194 struct wpabuf *partial;
195 wpa_printf(MSG_DEBUG, "TLSv1: Need more data");
196 partial = wpabuf_alloc_copy(pos, end - pos);
197 wpabuf_free(conn->partial_input);
198 conn->partial_input = partial;
199 if (conn->partial_input == NULL) {
200 wpa_printf(MSG_DEBUG, "TLSv1: Failed to "
201 "allocate memory for pending "
203 tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
204 TLS_ALERT_INTERNAL_ERROR);
215 in_end = in_msg + in_msg_len;
217 /* Each received record may include multiple messages of the
218 * same ContentType. */
219 while (in_pos < in_end) {
220 in_msg_len = in_end - in_pos;
221 if (tlsv1_client_process_handshake(conn, ct, in_pos,
226 in_pos += in_msg_len;
235 no_appl_data = appl_data == NULL || *appl_data == NULL;
236 msg = tlsv1_client_handshake_write(conn, out_len, no_appl_data);
240 if (conn->alert_level) {
241 wpabuf_free(conn->partial_input);
242 conn->partial_input = NULL;
243 conn->state = FAILED;
245 msg = tlsv1_client_send_alert(conn, conn->alert_level,
246 conn->alert_description,
248 } else if (msg == NULL) {
253 if (need_more_data == NULL || !(*need_more_data)) {
254 wpabuf_free(conn->partial_input);
255 conn->partial_input = NULL;
263 * tlsv1_client_encrypt - Encrypt data into TLS tunnel
264 * @conn: TLSv1 client connection data from tlsv1_client_init()
265 * @in_data: Pointer to plaintext data to be encrypted
266 * @in_len: Input buffer length
267 * @out_data: Pointer to output buffer (encrypted TLS data)
268 * @out_len: Maximum out_data length
269 * Returns: Number of bytes written to out_data, -1 on failure
271 * This function is used after TLS handshake has been completed successfully to
272 * send data in the encrypted tunnel.
274 int tlsv1_client_encrypt(struct tlsv1_client *conn,
275 const u8 *in_data, size_t in_len,
276 u8 *out_data, size_t out_len)
280 wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: Plaintext AppData",
283 if (tlsv1_record_send(&conn->rl, TLS_CONTENT_TYPE_APPLICATION_DATA,
284 out_data, out_len, in_data, in_len, &rlen) < 0) {
285 wpa_printf(MSG_DEBUG, "TLSv1: Failed to create a record");
286 tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
287 TLS_ALERT_INTERNAL_ERROR);
296 * tlsv1_client_decrypt - Decrypt data from TLS tunnel
297 * @conn: TLSv1 client connection data from tlsv1_client_init()
298 * @in_data: Pointer to input buffer (encrypted TLS data)
299 * @in_len: Input buffer length
300 * @need_more_data: Set to 1 if more data would be needed to complete
302 * Returns: Decrypted data or %NULL on failure
304 * This function is used after TLS handshake has been completed successfully to
305 * receive data from the encrypted tunnel.
307 struct wpabuf * tlsv1_client_decrypt(struct tlsv1_client *conn,
308 const u8 *in_data, size_t in_len,
311 const u8 *in_end, *pos;
313 u8 alert, *out_pos, ct;
315 struct wpabuf *buf = NULL;
320 if (conn->partial_input) {
321 if (wpabuf_resize(&conn->partial_input, in_len) < 0) {
322 wpa_printf(MSG_DEBUG, "TLSv1: Failed to allocate "
323 "memory for pending record");
324 alert = TLS_ALERT_INTERNAL_ERROR;
327 wpabuf_put_data(conn->partial_input, in_data, in_len);
328 in_data = wpabuf_head(conn->partial_input);
329 in_len = wpabuf_len(conn->partial_input);
333 in_end = in_data + in_len;
335 while (pos < in_end) {
337 if (wpabuf_resize(&buf, in_end - pos) < 0) {
338 alert = TLS_ALERT_INTERNAL_ERROR;
341 out_pos = wpabuf_put(buf, 0);
342 olen = wpabuf_tailroom(buf);
343 used = tlsv1_record_receive(&conn->rl, pos, in_end - pos,
344 out_pos, &olen, &alert);
346 wpa_printf(MSG_DEBUG, "TLSv1: Record layer processing "
351 struct wpabuf *partial;
352 wpa_printf(MSG_DEBUG, "TLSv1: Need more data");
353 partial = wpabuf_alloc_copy(pos, in_end - pos);
354 wpabuf_free(conn->partial_input);
355 conn->partial_input = partial;
356 if (conn->partial_input == NULL) {
357 wpa_printf(MSG_DEBUG, "TLSv1: Failed to "
358 "allocate memory for pending "
360 alert = TLS_ALERT_INTERNAL_ERROR;
368 if (ct == TLS_CONTENT_TYPE_ALERT) {
370 wpa_printf(MSG_DEBUG, "TLSv1: Alert "
372 alert = TLS_ALERT_DECODE_ERROR;
375 wpa_printf(MSG_DEBUG, "TLSv1: Received alert %d:%d",
376 out_pos[0], out_pos[1]);
377 if (out_pos[0] == TLS_ALERT_LEVEL_WARNING) {
378 /* Continue processing */
387 if (ct != TLS_CONTENT_TYPE_APPLICATION_DATA) {
388 wpa_printf(MSG_DEBUG, "TLSv1: Unexpected content type "
389 "0x%x when decrypting application data",
391 alert = TLS_ALERT_UNEXPECTED_MESSAGE;
395 wpabuf_put(buf, olen);
400 wpabuf_free(conn->partial_input);
401 conn->partial_input = NULL;
406 wpabuf_free(conn->partial_input);
407 conn->partial_input = NULL;
408 tls_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
414 * tlsv1_client_global_init - Initialize TLSv1 client
415 * Returns: 0 on success, -1 on failure
417 * This function must be called before using any other TLSv1 client functions.
419 int tlsv1_client_global_init(void)
421 return crypto_global_init();
426 * tlsv1_client_global_deinit - Deinitialize TLSv1 client
428 * This function can be used to deinitialize the TLSv1 client that was
429 * initialized by calling tlsv1_client_global_init(). No TLSv1 client functions
430 * can be called after this before calling tlsv1_client_global_init() again.
432 void tlsv1_client_global_deinit(void)
434 crypto_global_deinit();
439 * tlsv1_client_init - Initialize TLSv1 client connection
440 * Returns: Pointer to TLSv1 client connection data or %NULL on failure
442 struct tlsv1_client * tlsv1_client_init(void)
444 struct tlsv1_client *conn;
448 conn = os_zalloc(sizeof(*conn));
452 conn->state = CLIENT_HELLO;
454 if (tls_verify_hash_init(&conn->verify) < 0) {
455 wpa_printf(MSG_DEBUG, "TLSv1: Failed to initialize verify "
462 suites = conn->cipher_suites;
463 suites[count++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA256;
464 suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA256;
465 suites[count++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA;
466 suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
467 suites[count++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA256;
468 suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA256;
469 suites[count++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA;
470 suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
471 suites[count++] = TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA;
472 suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
473 suites[count++] = TLS_RSA_WITH_RC4_128_SHA;
474 suites[count++] = TLS_RSA_WITH_RC4_128_MD5;
475 conn->num_cipher_suites = count;
477 conn->rl.tls_version = TLS_VERSION;
484 * tlsv1_client_deinit - Deinitialize TLSv1 client connection
485 * @conn: TLSv1 client connection data from tlsv1_client_init()
487 void tlsv1_client_deinit(struct tlsv1_client *conn)
489 crypto_public_key_free(conn->server_rsa_key);
490 tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);
491 tlsv1_record_change_write_cipher(&conn->rl);
492 tlsv1_record_change_read_cipher(&conn->rl);
493 tls_verify_hash_free(&conn->verify);
494 os_free(conn->client_hello_ext);
495 tlsv1_client_free_dh(conn);
496 tlsv1_cred_free(conn->cred);
497 wpabuf_free(conn->partial_input);
498 x509_certificate_chain_free(conn->server_cert);
504 * tlsv1_client_established - Check whether connection has been established
505 * @conn: TLSv1 client connection data from tlsv1_client_init()
506 * Returns: 1 if connection is established, 0 if not
508 int tlsv1_client_established(struct tlsv1_client *conn)
510 return conn->state == ESTABLISHED;
515 * tlsv1_client_prf - Use TLS-PRF to derive keying material
516 * @conn: TLSv1 client connection data from tlsv1_client_init()
517 * @label: Label (e.g., description of the key) for PRF
518 * @server_random_first: seed is 0 = client_random|server_random,
519 * 1 = server_random|client_random
520 * @out: Buffer for output data from TLS-PRF
521 * @out_len: Length of the output buffer
522 * Returns: 0 on success, -1 on failure
524 int tlsv1_client_prf(struct tlsv1_client *conn, const char *label,
525 int server_random_first, u8 *out, size_t out_len)
527 u8 seed[2 * TLS_RANDOM_LEN];
529 if (conn->state != ESTABLISHED)
532 if (server_random_first) {
533 os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);
534 os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random,
537 os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);
538 os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,
542 return tls_prf(conn->rl.tls_version,
543 conn->master_secret, TLS_MASTER_SECRET_LEN,
544 label, seed, 2 * TLS_RANDOM_LEN, out, out_len);
549 * tlsv1_client_get_cipher - Get current cipher name
550 * @conn: TLSv1 client connection data from tlsv1_client_init()
551 * @buf: Buffer for the cipher name
553 * Returns: 0 on success, -1 on failure
555 * Get the name of the currently used cipher.
557 int tlsv1_client_get_cipher(struct tlsv1_client *conn, char *buf,
562 switch (conn->rl.cipher_suite) {
563 case TLS_RSA_WITH_RC4_128_MD5:
566 case TLS_RSA_WITH_RC4_128_SHA:
569 case TLS_RSA_WITH_DES_CBC_SHA:
570 cipher = "DES-CBC-SHA";
572 case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
573 cipher = "DES-CBC3-SHA";
575 case TLS_DHE_RSA_WITH_DES_CBC_SHA:
576 cipher = "DHE-RSA-DES-CBC-SHA";
578 case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA:
579 cipher = "DHE-RSA-DES-CBC3-SHA";
581 case TLS_DH_anon_WITH_RC4_128_MD5:
582 cipher = "ADH-RC4-MD5";
584 case TLS_DH_anon_WITH_DES_CBC_SHA:
585 cipher = "ADH-DES-SHA";
587 case TLS_DH_anon_WITH_3DES_EDE_CBC_SHA:
588 cipher = "ADH-DES-CBC3-SHA";
590 case TLS_RSA_WITH_AES_128_CBC_SHA:
591 cipher = "AES-128-SHA";
593 case TLS_DHE_RSA_WITH_AES_128_CBC_SHA:
594 cipher = "DHE-RSA-AES-128-SHA";
596 case TLS_DH_anon_WITH_AES_128_CBC_SHA:
597 cipher = "ADH-AES-128-SHA";
599 case TLS_RSA_WITH_AES_256_CBC_SHA:
600 cipher = "AES-256-SHA";
602 case TLS_DHE_RSA_WITH_AES_256_CBC_SHA:
603 cipher = "DHE-RSA-AES-256-SHA";
605 case TLS_DH_anon_WITH_AES_256_CBC_SHA:
606 cipher = "ADH-AES-256-SHA";
608 case TLS_RSA_WITH_AES_128_CBC_SHA256:
609 cipher = "AES-128-SHA256";
611 case TLS_RSA_WITH_AES_256_CBC_SHA256:
612 cipher = "AES-256-SHA256";
614 case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256:
615 cipher = "DHE-RSA-AES-128-SHA256";
617 case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256:
618 cipher = "DHE-RSA-AES-256-SHA256";
620 case TLS_DH_anon_WITH_AES_128_CBC_SHA256:
621 cipher = "ADH-AES-128-SHA256";
623 case TLS_DH_anon_WITH_AES_256_CBC_SHA256:
624 cipher = "ADH-AES-256-SHA256";
630 if (os_strlcpy(buf, cipher, buflen) >= buflen)
637 * tlsv1_client_shutdown - Shutdown TLS connection
638 * @conn: TLSv1 client connection data from tlsv1_client_init()
639 * Returns: 0 on success, -1 on failure
641 int tlsv1_client_shutdown(struct tlsv1_client *conn)
643 conn->state = CLIENT_HELLO;
645 if (tls_verify_hash_init(&conn->verify) < 0) {
646 wpa_printf(MSG_DEBUG, "TLSv1: Failed to re-initialize verify "
651 tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);
652 tlsv1_record_change_write_cipher(&conn->rl);
653 tlsv1_record_change_read_cipher(&conn->rl);
655 conn->certificate_requested = 0;
656 crypto_public_key_free(conn->server_rsa_key);
657 conn->server_rsa_key = NULL;
658 conn->session_resumed = 0;
665 * tlsv1_client_resumed - Was session resumption used
666 * @conn: TLSv1 client connection data from tlsv1_client_init()
667 * Returns: 1 if current session used session resumption, 0 if not
669 int tlsv1_client_resumed(struct tlsv1_client *conn)
671 return !!conn->session_resumed;
676 * tlsv1_client_hello_ext - Set TLS extension for ClientHello
677 * @conn: TLSv1 client connection data from tlsv1_client_init()
678 * @ext_type: Extension type
679 * @data: Extension payload (%NULL to remove extension)
680 * @data_len: Extension payload length
681 * Returns: 0 on success, -1 on failure
683 int tlsv1_client_hello_ext(struct tlsv1_client *conn, int ext_type,
684 const u8 *data, size_t data_len)
688 conn->session_ticket_included = 0;
689 os_free(conn->client_hello_ext);
690 conn->client_hello_ext = NULL;
691 conn->client_hello_ext_len = 0;
693 if (data == NULL || data_len == 0)
696 pos = conn->client_hello_ext = os_malloc(4 + data_len);
700 WPA_PUT_BE16(pos, ext_type);
702 WPA_PUT_BE16(pos, data_len);
704 os_memcpy(pos, data, data_len);
705 conn->client_hello_ext_len = 4 + data_len;
707 if (ext_type == TLS_EXT_PAC_OPAQUE) {
708 conn->session_ticket_included = 1;
709 wpa_printf(MSG_DEBUG, "TLSv1: Using session ticket");
717 * tlsv1_client_get_random - Get random data from TLS connection
718 * @conn: TLSv1 client connection data from tlsv1_client_init()
719 * @keys: Structure of random data (filled on success)
720 * Returns: 0 on success, -1 on failure
722 int tlsv1_client_get_random(struct tlsv1_client *conn, struct tls_random *keys)
724 os_memset(keys, 0, sizeof(*keys));
725 if (conn->state == CLIENT_HELLO)
728 keys->client_random = conn->client_random;
729 keys->client_random_len = TLS_RANDOM_LEN;
731 if (conn->state != SERVER_HELLO) {
732 keys->server_random = conn->server_random;
733 keys->server_random_len = TLS_RANDOM_LEN;
741 * tlsv1_client_get_keyblock_size - Get TLS key_block size
742 * @conn: TLSv1 client connection data from tlsv1_client_init()
743 * Returns: Size of the key_block for the negotiated cipher suite or -1 on
746 int tlsv1_client_get_keyblock_size(struct tlsv1_client *conn)
748 if (conn->state == CLIENT_HELLO || conn->state == SERVER_HELLO)
751 return 2 * (conn->rl.hash_size + conn->rl.key_material_len +
757 * tlsv1_client_set_cipher_list - Configure acceptable cipher suites
758 * @conn: TLSv1 client connection data from tlsv1_client_init()
759 * @ciphers: Zero (TLS_CIPHER_NONE) terminated list of allowed ciphers
761 * Returns: 0 on success, -1 on failure
763 int tlsv1_client_set_cipher_list(struct tlsv1_client *conn, u8 *ciphers)
768 /* TODO: implement proper configuration of cipher suites */
769 if (ciphers[0] == TLS_CIPHER_ANON_DH_AES128_SHA) {
771 suites = conn->cipher_suites;
772 suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA256;
773 suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA;
774 suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA256;
775 suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA;
776 suites[count++] = TLS_DH_anon_WITH_3DES_EDE_CBC_SHA;
777 suites[count++] = TLS_DH_anon_WITH_RC4_128_MD5;
778 suites[count++] = TLS_DH_anon_WITH_DES_CBC_SHA;
781 * Cisco AP (at least 350 and 1200 series) local authentication
782 * server does not know how to search cipher suites from the
783 * list and seem to require that the last entry in the list is
784 * the one that it wants to use. However, TLS specification
785 * requires the list to be in the client preference order. As a
786 * workaround, add anon-DH AES-128-SHA1 again at the end of the
787 * list to allow the Cisco code to find it.
789 suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA;
790 conn->num_cipher_suites = count;
798 * tlsv1_client_set_cred - Set client credentials
799 * @conn: TLSv1 client connection data from tlsv1_client_init()
800 * @cred: Credentials from tlsv1_cred_alloc()
801 * Returns: 0 on success, -1 on failure
803 * On success, the client takes ownership of the credentials block and caller
804 * must not free it. On failure, caller is responsible for freeing the
807 int tlsv1_client_set_cred(struct tlsv1_client *conn,
808 struct tlsv1_credentials *cred)
810 tlsv1_cred_free(conn->cred);
817 * tlsv1_client_set_flags - Set connection flags
818 * @conn: TLSv1 client connection data from tlsv1_client_init()
819 * @flags: TLS_CONN_* bitfield
821 void tlsv1_client_set_flags(struct tlsv1_client *conn, unsigned int flags)
827 void tlsv1_client_set_session_ticket_cb(struct tlsv1_client *conn,
828 tlsv1_client_session_ticket_cb cb,
831 wpa_printf(MSG_DEBUG, "TLSv1: SessionTicket callback set %p (ctx %p)",
833 conn->session_ticket_cb = cb;
834 conn->session_ticket_cb_ctx = ctx;
838 void tlsv1_client_set_cb(struct tlsv1_client *conn,
839 void (*event_cb)(void *ctx, enum tls_event ev,
840 union tls_event_data *data),
844 conn->event_cb = event_cb;
845 conn->cb_ctx = cb_ctx;
846 conn->cert_in_cb = !!cert_in_cb;
850 int tlsv1_client_get_version(struct tlsv1_client *conn, char *buf,
855 switch (conn->rl.tls_version) {
857 os_strlcpy(buf, "TLSv1", buflen);
859 case TLS_VERSION_1_1:
860 os_strlcpy(buf, "TLSv1.1", buflen);
862 case TLS_VERSION_1_2:
863 os_strlcpy(buf, "TLSv1.2", buflen);