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ssl_internal.h
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1 
6 /*
7  * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
8  * SPDX-License-Identifier: Apache-2.0
9  *
10  * Licensed under the Apache License, Version 2.0 (the "License"); you may
11  * not use this file except in compliance with the License.
12  * You may obtain a copy of the License at
13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing, software
17  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  * See the License for the specific language governing permissions and
20  * limitations under the License.
21  *
22  * This file is part of mbed TLS (https://tls.mbed.org)
23  */
24 #ifndef MBEDTLS_SSL_INTERNAL_H
25 #define MBEDTLS_SSL_INTERNAL_H
26 
27 #include "ssl.h"
28 #include "cipher.h"
29 
30 #if defined(MBEDTLS_MD5_C)
31 #include "md5.h"
32 #endif
33 
34 #if defined(MBEDTLS_SHA1_C)
35 #include "sha1.h"
36 #endif
37 
38 #if defined(MBEDTLS_SHA256_C)
39 #include "sha256.h"
40 #endif
41 
42 #if defined(MBEDTLS_SHA512_C)
43 #include "sha512.h"
44 #endif
45 
46 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
47 #include "ecjpake.h"
48 #endif
49 
50 #if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
51  !defined(inline) && !defined(__cplusplus)
52 #define inline __inline
53 #endif
54 
55 /* Determine minimum supported version */
56 #define MBEDTLS_SSL_MIN_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3
57 
58 #if defined(MBEDTLS_SSL_PROTO_SSL3)
59 #define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_0
60 #else
61 #if defined(MBEDTLS_SSL_PROTO_TLS1)
62 #define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1
63 #else
64 #if defined(MBEDTLS_SSL_PROTO_TLS1_1)
65 #define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_2
66 #else
67 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
68 #define MBEDTLS_SSL_MIN_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_3
69 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
70 #endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
71 #endif /* MBEDTLS_SSL_PROTO_TLS1 */
72 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
73 
74 #define MBEDTLS_SSL_MIN_VALID_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1
75 #define MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3
76 
77 /* Determine maximum supported version */
78 #define MBEDTLS_SSL_MAX_MAJOR_VERSION MBEDTLS_SSL_MAJOR_VERSION_3
79 
80 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
81 #define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_3
82 #else
83 #if defined(MBEDTLS_SSL_PROTO_TLS1_1)
84 #define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_2
85 #else
86 #if defined(MBEDTLS_SSL_PROTO_TLS1)
87 #define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_1
88 #else
89 #if defined(MBEDTLS_SSL_PROTO_SSL3)
90 #define MBEDTLS_SSL_MAX_MINOR_VERSION MBEDTLS_SSL_MINOR_VERSION_0
91 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
92 #endif /* MBEDTLS_SSL_PROTO_TLS1 */
93 #endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
94 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
95 
96 /* Shorthand for restartable ECC */
97 #if defined(MBEDTLS_ECP_RESTARTABLE) && \
98  defined(MBEDTLS_SSL_CLI_C) && \
99  defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
100  defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
101 #define MBEDTLS_SSL__ECP_RESTARTABLE
102 #endif
103 
104 #define MBEDTLS_SSL_INITIAL_HANDSHAKE 0
105 #define MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS 1 /* In progress */
106 #define MBEDTLS_SSL_RENEGOTIATION_DONE 2 /* Done or aborted */
107 #define MBEDTLS_SSL_RENEGOTIATION_PENDING 3 /* Requested (server only) */
108 
109 /*
110  * DTLS retransmission states, see RFC 6347 4.2.4
111  *
112  * The SENDING state is merged in PREPARING for initial sends,
113  * but is distinct for resends.
114  *
115  * Note: initial state is wrong for server, but is not used anyway.
116  */
117 #define MBEDTLS_SSL_RETRANS_PREPARING 0
118 #define MBEDTLS_SSL_RETRANS_SENDING 1
119 #define MBEDTLS_SSL_RETRANS_WAITING 2
120 #define MBEDTLS_SSL_RETRANS_FINISHED 3
121 
122 /*
123  * Allow extra bytes for record, authentication and encryption overhead:
124  * counter (8) + header (5) + IV(16) + MAC (16-48) + padding (0-256)
125  * and allow for a maximum of 1024 of compression expansion if
126  * enabled.
127  */
128 #if defined(MBEDTLS_ZLIB_SUPPORT)
129 #define MBEDTLS_SSL_COMPRESSION_ADD 1024
130 #else
131 #define MBEDTLS_SSL_COMPRESSION_ADD 0
132 #endif
133 
134 #if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_MODE_CBC)
135 /* Ciphersuites using HMAC */
136 #if defined(MBEDTLS_SHA512_C)
137 #define MBEDTLS_SSL_MAC_ADD 48 /* SHA-384 used for HMAC */
138 #elif defined(MBEDTLS_SHA256_C)
139 #define MBEDTLS_SSL_MAC_ADD 32 /* SHA-256 used for HMAC */
140 #else
141 #define MBEDTLS_SSL_MAC_ADD 20 /* SHA-1 used for HMAC */
142 #endif
143 #else
144 /* AEAD ciphersuites: GCM and CCM use a 128 bits tag */
145 #define MBEDTLS_SSL_MAC_ADD 16
146 #endif
147 
148 #if defined(MBEDTLS_CIPHER_MODE_CBC)
149 #define MBEDTLS_SSL_PADDING_ADD 256
150 #else
151 #define MBEDTLS_SSL_PADDING_ADD 0
152 #endif
153 
154 #define MBEDTLS_SSL_PAYLOAD_OVERHEAD ( MBEDTLS_SSL_COMPRESSION_ADD + \
155  MBEDTLS_MAX_IV_LENGTH + \
156  MBEDTLS_SSL_MAC_ADD + \
157  MBEDTLS_SSL_PADDING_ADD \
158  )
159 
160 #define MBEDTLS_SSL_IN_PAYLOAD_LEN ( MBEDTLS_SSL_PAYLOAD_OVERHEAD + \
161  ( MBEDTLS_SSL_IN_CONTENT_LEN ) )
162 
163 #define MBEDTLS_SSL_OUT_PAYLOAD_LEN ( MBEDTLS_SSL_PAYLOAD_OVERHEAD + \
164  ( MBEDTLS_SSL_OUT_CONTENT_LEN ) )
165 
166 /* The maximum number of buffered handshake messages. */
167 #define MBEDTLS_SSL_MAX_BUFFERED_HS 4
168 
169 /* Maximum length we can advertise as our max content length for
170  RFC 6066 max_fragment_length extension negotiation purposes
171  (the lesser of both sizes, if they are unequal.)
172  */
173 #define MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ( \
174  (MBEDTLS_SSL_IN_CONTENT_LEN > MBEDTLS_SSL_OUT_CONTENT_LEN) \
175  ? ( MBEDTLS_SSL_OUT_CONTENT_LEN ) \
176  : ( MBEDTLS_SSL_IN_CONTENT_LEN ) \
177  )
178 
179 /*
180  * Check that we obey the standard's message size bounds
181  */
182 
183 #if MBEDTLS_SSL_MAX_CONTENT_LEN > 16384
184 #error "Bad configuration - record content too large."
185 #endif
186 
187 #if MBEDTLS_SSL_IN_CONTENT_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN
188 #error "Bad configuration - incoming record content should not be larger than MBEDTLS_SSL_MAX_CONTENT_LEN."
189 #endif
190 
191 #if MBEDTLS_SSL_OUT_CONTENT_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN
192 #error "Bad configuration - outgoing record content should not be larger than MBEDTLS_SSL_MAX_CONTENT_LEN."
193 #endif
194 
195 #if MBEDTLS_SSL_IN_PAYLOAD_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN + 2048
196 #error "Bad configuration - incoming protected record payload too large."
197 #endif
198 
199 #if MBEDTLS_SSL_OUT_PAYLOAD_LEN > MBEDTLS_SSL_MAX_CONTENT_LEN + 2048
200 #error "Bad configuration - outgoing protected record payload too large."
201 #endif
202 
203 /* Calculate buffer sizes */
204 
205 /* Note: Even though the TLS record header is only 5 bytes
206  long, we're internally using 8 bytes to store the
207  implicit sequence number. */
208 #define MBEDTLS_SSL_HEADER_LEN 13
209 
210 #define MBEDTLS_SSL_IN_BUFFER_LEN \
211  ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_IN_PAYLOAD_LEN ) )
212 
213 #define MBEDTLS_SSL_OUT_BUFFER_LEN \
214  ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_OUT_PAYLOAD_LEN ) )
215 
216 #ifdef MBEDTLS_ZLIB_SUPPORT
217 /* Compression buffer holds both IN and OUT buffers, so should be size of the larger */
218 #define MBEDTLS_SSL_COMPRESS_BUFFER_LEN ( \
219  ( MBEDTLS_SSL_IN_BUFFER_LEN > MBEDTLS_SSL_OUT_BUFFER_LEN ) \
220  ? MBEDTLS_SSL_IN_BUFFER_LEN \
221  : MBEDTLS_SSL_OUT_BUFFER_LEN \
222  )
223 #endif
224 
225 /*
226  * TLS extension flags (for extensions with outgoing ServerHello content
227  * that need it (e.g. for RENEGOTIATION_INFO the server already knows because
228  * of state of the renegotiation flag, so no indicator is required)
229  */
230 #define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT (1 << 0)
231 #define MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK (1 << 1)
232 
233 #ifdef __cplusplus
234 extern "C" {
235 #endif
236 
237 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
238  defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
239 /*
240  * Abstraction for a grid of allowed signature-hash-algorithm pairs.
241  */
243 {
244  /* At the moment, we only need to remember a single suitable
245  * hash algorithm per signature algorithm. As long as that's
246  * the case - and we don't need a general lookup function -
247  * we can implement the sig-hash-set as a map from signatures
248  * to hash algorithms. */
251 };
252 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
253  MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
254 
255 /*
256  * This structure contains the parameters only needed during handshake.
257  */
259 {
260  /*
261  * Handshake specific crypto variables
262  */
263 
264 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
265  defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
267 #endif
268 #if defined(MBEDTLS_DHM_C)
270 #endif
271 #if defined(MBEDTLS_ECDH_C)
273 #endif
274 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
275  mbedtls_ecjpake_context ecjpake_ctx;
276 #if defined(MBEDTLS_SSL_CLI_C)
277  unsigned char *ecjpake_cache;
278  size_t ecjpake_cache_len;
279 #endif
280 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
281 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
282  defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
284 #endif
285 #if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
286  unsigned char *psk;
287  size_t psk_len;
288 #endif
289 #if defined(MBEDTLS_X509_CRT_PARSE_C)
291 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
296 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
297 #endif /* MBEDTLS_X509_CRT_PARSE_C */
298 #if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
299  int ecrs_enabled;
301  enum { /* this complements ssl->state with info on intra-state operations */
302  ssl_ecrs_none = 0,
303  ssl_ecrs_crt_verify,
304  ssl_ecrs_ske_start_processing,
305  ssl_ecrs_cke_ecdh_calc_secret,
306  ssl_ecrs_crt_vrfy_sign,
307  } ecrs_state;
308  size_t ecrs_n;
309 #endif
310 #if defined(MBEDTLS_SSL_PROTO_DTLS)
311  unsigned int out_msg_seq;
312  unsigned int in_msg_seq;
314  unsigned char *verify_cookie;
316  unsigned char verify_cookie_len;
320  unsigned char retransmit_state;
323  unsigned char *cur_msg_p;
324  unsigned int in_flight_start_seq;
328  unsigned char alt_out_ctr[8];
331  struct
332  {
336  uint8_t seen_ccs;
339  struct mbedtls_ssl_hs_buffer
340  {
341  unsigned is_valid : 1;
342  unsigned is_fragmented : 1;
343  unsigned is_complete : 1;
344  unsigned char *data;
345  size_t data_len;
347 
348  struct
349  {
350  unsigned char *data;
351  size_t len;
352  unsigned epoch;
353  } future_record;
354 
355  } buffering;
356 
357  uint16_t mtu;
358 #endif /* MBEDTLS_SSL_PROTO_DTLS */
359 
360  /*
361  * Checksum contexts
362  */
363 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
364  defined(MBEDTLS_SSL_PROTO_TLS1_1)
367 #endif
368 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
369 #if defined(MBEDTLS_SHA256_C)
371 #endif
372 #if defined(MBEDTLS_SHA512_C)
374 #endif
375 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
376 
377  void (*update_checksum)(mbedtls_ssl_context *, const unsigned char *, size_t);
378  void (*calc_verify)(mbedtls_ssl_context *, unsigned char *);
379  void (*calc_finished)(mbedtls_ssl_context *, unsigned char *, int);
380  int (*tls_prf)(const unsigned char *, size_t, const char *,
381  const unsigned char *, size_t,
382  unsigned char *, size_t);
383 
384  size_t pmslen;
386  unsigned char randbytes[64];
390  int resume;
393  int cli_exts;
395 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
397 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
398 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
400 #endif
401 
402 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
403  unsigned int async_in_progress : 1;
404 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
405 
406 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
407 
412  void *user_async_ctx;
413 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
414 };
415 
417 
418 /*
419  * This structure contains a full set of runtime transform parameters
420  * either in negotiation or active.
421  */
423 {
424  /*
425  * Session specific crypto layer
426  */
429  unsigned int keylen;
430  size_t minlen;
431  size_t ivlen;
432  size_t fixed_ivlen;
433  size_t maclen;
435  unsigned char iv_enc[16];
436  unsigned char iv_dec[16];
438 #if defined(MBEDTLS_SSL_PROTO_SSL3)
439  /* Needed only for SSL v3.0 secret */
440  unsigned char mac_enc[20];
441  unsigned char mac_dec[20];
442 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
443 
450  /*
451  * Session specific compression layer
452  */
453 #if defined(MBEDTLS_ZLIB_SUPPORT)
454  z_stream ctx_deflate;
455  z_stream ctx_inflate;
456 #endif
457 };
458 
459 #if defined(MBEDTLS_X509_CRT_PARSE_C)
460 /*
461  * List of certificate + private key pairs
462  */
464 {
468 };
469 #endif /* MBEDTLS_X509_CRT_PARSE_C */
470 
471 #if defined(MBEDTLS_SSL_PROTO_DTLS)
472 /*
473  * List of handshake messages kept around for resending
474  */
476 {
477  unsigned char *p;
478  size_t len;
479  unsigned char type;
481 };
482 #endif /* MBEDTLS_SSL_PROTO_DTLS */
483 
484 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
485  defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
486 
487 /* Find an entry in a signature-hash set matching a given hash algorithm. */
489  mbedtls_pk_type_t sig_alg );
490 /* Add a signature-hash-pair to a signature-hash set */
492  mbedtls_pk_type_t sig_alg,
493  mbedtls_md_type_t md_alg );
494 /* Allow exactly one hash algorithm for each signature. */
496  mbedtls_md_type_t md_alg );
497 
498 /* Setup an empty signature-hash set */
500 {
502 }
503 
504 #endif /* MBEDTLS_SSL_PROTO_TLS1_2) &&
505  MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
506 
514 
522 
526 
528 
531 
535 
613  unsigned update_hs_digest );
614 int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want );
615 
617 int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush );
619 
622 
625 
628 
630  const mbedtls_ssl_ciphersuite_t *ciphersuite_info );
631 
632 #if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
634 #endif
635 
636 #if defined(MBEDTLS_PK_C)
637 unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk );
638 unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type );
640 #endif
641 
642 mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash );
643 unsigned char mbedtls_ssl_hash_from_md_alg( int md );
645 
646 #if defined(MBEDTLS_ECP_C)
648 #endif
649 
650 #if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
653 #endif
654 
655 #if defined(MBEDTLS_X509_CRT_PARSE_C)
657 {
658  mbedtls_ssl_key_cert *key_cert;
659 
660  if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL )
661  key_cert = ssl->handshake->key_cert;
662  else
663  key_cert = ssl->conf->key_cert;
664 
665  return( key_cert == NULL ? NULL : key_cert->key );
666 }
667 
669 {
670  mbedtls_ssl_key_cert *key_cert;
671 
672  if( ssl->handshake != NULL && ssl->handshake->key_cert != NULL )
673  key_cert = ssl->handshake->key_cert;
674  else
675  key_cert = ssl->conf->key_cert;
676 
677  return( key_cert == NULL ? NULL : key_cert->cert );
678 }
679 
680 /*
681  * Check usage of a certificate wrt extensions:
682  * keyUsage, extendedKeyUsage (later), and nSCertType (later).
683  *
684  * Warning: cert_endpoint is the endpoint of the cert (ie, of our peer when we
685  * check a cert we received from them)!
686  *
687  * Return 0 if everything is OK, -1 if not.
688  */
690  const mbedtls_ssl_ciphersuite_t *ciphersuite,
691  int cert_endpoint,
692  uint32_t *flags );
693 #endif /* MBEDTLS_X509_CRT_PARSE_C */
694 
695 void mbedtls_ssl_write_version( int major, int minor, int transport,
696  unsigned char ver[2] );
697 void mbedtls_ssl_read_version( int *major, int *minor, int transport,
698  const unsigned char ver[2] );
699 
700 static inline size_t mbedtls_ssl_hdr_len( const mbedtls_ssl_context *ssl )
701 {
702 #if defined(MBEDTLS_SSL_PROTO_DTLS)
704  return( 13 );
705 #else
706  ((void) ssl);
707 #endif
708  return( 5 );
709 }
710 
711 static inline size_t mbedtls_ssl_hs_hdr_len( const mbedtls_ssl_context *ssl )
712 {
713 #if defined(MBEDTLS_SSL_PROTO_DTLS)
715  return( 12 );
716 #else
717  ((void) ssl);
718 #endif
719  return( 4 );
720 }
721 
722 #if defined(MBEDTLS_SSL_PROTO_DTLS)
727 #endif
728 
729 /* Visible for testing purposes only */
730 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
733 #endif
734 
735 /* constant-time buffer comparison */
736 static inline int mbedtls_ssl_safer_memcmp( const void *a, const void *b, size_t n )
737 {
738  size_t i;
739  volatile const unsigned char *A = (volatile const unsigned char *) a;
740  volatile const unsigned char *B = (volatile const unsigned char *) b;
741  volatile unsigned char diff = 0;
742 
743  for( i = 0; i < n; i++ )
744  {
745  /* Read volatile data in order before computing diff.
746  * This avoids IAR compiler warning:
747  * 'the order of volatile accesses is undefined ..' */
748  unsigned char x = A[i], y = B[i];
749  diff |= x ^ y;
750  }
751 
752  return( diff );
753 }
754 
755 #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
756  defined(MBEDTLS_SSL_PROTO_TLS1_1)
758  unsigned char *output,
759  unsigned char *data, size_t data_len );
760 #endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
761  MBEDTLS_SSL_PROTO_TLS1_1 */
762 
763 #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
764  defined(MBEDTLS_SSL_PROTO_TLS1_2)
766  unsigned char *hash, size_t *hashlen,
767  unsigned char *data, size_t data_len,
768  mbedtls_md_type_t md_alg );
769 #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
770  MBEDTLS_SSL_PROTO_TLS1_2 */
771 
772 #ifdef __cplusplus
773 }
774 #endif
775 
776 #endif /* ssl_internal.h */
void mbedtls_ssl_handshake_free(mbedtls_ssl_context *ssl)
Free referenced items in an SSL handshake context and clear memory.
void mbedtls_ssl_send_flight_completed(mbedtls_ssl_context *ssl)
unsigned int transport
Definition: ssl.h:981
void(* update_checksum)(mbedtls_ssl_context *, const unsigned char *, size_t)
Definition: ssl_internal.h:377
int mbedtls_ssl_parse_finished(mbedtls_ssl_context *ssl)
unsigned char mbedtls_ssl_hash_from_md_alg(int md)
Public key container.
Definition: pk.h:130
mbedtls_sha1_context fin_sha1
Definition: ssl_internal.h:366
void mbedtls_ssl_read_version(int *major, int *minor, int transport, const unsigned char ver[2])
mbedtls_md_type_t rsa
Definition: ssl_internal.h:249
struct mbedtls_ssl_handshake_params::@1 buffering
void(* calc_finished)(mbedtls_ssl_context *, unsigned char *, int)
Definition: ssl_internal.h:379
mbedtls_ssl_key_cert * key_cert
Definition: ssl_internal.h:290
int mbedtls_ssl_handshake_server_step(mbedtls_ssl_context *ssl)
unsigned char alt_out_ctr[8]
Definition: ssl_internal.h:328
unsigned char randbytes[64]
Definition: ssl_internal.h:386
int mbedtls_ssl_write_change_cipher_spec(mbedtls_ssl_context *ssl)
unsigned char mbedtls_ssl_sig_from_pk_alg(mbedtls_pk_type_t type)
mbedtls_ssl_flight_item * cur_msg
Definition: ssl_internal.h:322
mbedtls_sha256_context fin_sha256
Definition: ssl_internal.h:370
int mbedtls_ssl_write_finished(mbedtls_ssl_context *ssl)
Certificate revocation list structure.
Definition: x509_crl.h:70
mbedtls_ecdh_context ecdh_ctx
Definition: ssl_internal.h:272
int mbedtls_ssl_set_calc_verify_md(mbedtls_ssl_context *ssl, int md)
Generic cipher context.
Definition: cipher.h:284
static int mbedtls_ssl_safer_memcmp(const void *a, const void *b, size_t n)
Definition: ssl_internal.h:736
struct mbedtls_ssl_handshake_params::@1::@2 future_record
mbedtls_sha512_context fin_sha512
Definition: ssl_internal.h:373
mbedtls_pk_type_t
Public key types.
Definition: pk.h:78
int mbedtls_ssl_handle_message_type(mbedtls_ssl_context *ssl)
struct mbedtls_ssl_handshake_params::@1::mbedtls_ssl_hs_buffer hs[MBEDTLS_SSL_MAX_BUFFERED_HS]
int mbedtls_ssl_parse_certificate(mbedtls_ssl_context *ssl)
mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find(mbedtls_ssl_sig_hash_set_t *set, mbedtls_pk_type_t sig_alg)
mbedtls_cipher_context_t cipher_ctx_enc
Definition: ssl_internal.h:447
Elliptic curve J-PAKE.
static size_t mbedtls_ssl_hs_hdr_len(const mbedtls_ssl_context *ssl)
Definition: ssl_internal.h:711
void mbedtls_ssl_sig_hash_set_add(mbedtls_ssl_sig_hash_set_t *set, mbedtls_pk_type_t sig_alg, mbedtls_md_type_t md_alg)
#define MBEDTLS_SSL_TRANSPORT_DATAGRAM
Definition: ssl.h:137
Curve information, for use by other modules.
Definition: ecp.h:99
int mbedtls_ssl_resend(mbedtls_ssl_context *ssl)
unsigned char mbedtls_ssl_sig_from_pk(mbedtls_pk_context *pk)
int mbedtls_ssl_derive_keys(mbedtls_ssl_context *ssl)
static void mbedtls_ssl_sig_hash_set_init(mbedtls_ssl_sig_hash_set_t *set)
Definition: ssl_internal.h:499
The generic message-digest context.
Definition: md.h:85
int(* tls_prf)(const unsigned char *, size_t, const char *, const unsigned char *, size_t, unsigned char *, size_t)
Definition: ssl_internal.h:380
mbedtls_x509_crt * sni_ca_chain
Definition: ssl_internal.h:294
mbedtls_md_context_t md_ctx_dec
Definition: ssl_internal.h:445
const mbedtls_ssl_ciphersuite_t * ciphersuite_info
Definition: ssl_internal.h:427
mbedtls_md5_context fin_md5
Definition: ssl_internal.h:365
unsigned char iv_dec[16]
Definition: ssl_internal.h:436
int mbedtls_ssl_prepare_handshake_record(mbedtls_ssl_context *ssl)
int mbedtls_ssl_fetch_input(mbedtls_ssl_context *ssl, size_t nb_want)
mbedtls_ssl_handshake_params * handshake
Definition: ssl.h:1059
int mbedtls_ssl_dtls_replay_check(mbedtls_ssl_context *ssl)
const mbedtls_ecp_curve_info ** curves
Definition: ssl_internal.h:283
int mbedtls_ssl_get_key_exchange_md_tls1_2(mbedtls_ssl_context *ssl, unsigned char *hash, size_t *hashlen, unsigned char *data, size_t data_len, mbedtls_md_type_t md_alg)
void mbedtls_ssl_update_handshake_status(mbedtls_ssl_context *ssl)
mbedtls_ssl_transform * alt_transform_out
Definition: ssl_internal.h:326
unsigned char iv_enc[16]
Definition: ssl_internal.h:435
mbedtls_ssl_flight_item * next
Definition: ssl_internal.h:480
mbedtls_ssl_key_cert * key_cert
Definition: ssl.h:897
void mbedtls_ssl_transform_free(mbedtls_ssl_transform *transform)
Free referenced items in an SSL transform context and clear memory.
The SHA-512 context structure.
Definition: sha512.h:57
int mbedtls_ssl_check_cert_usage(const mbedtls_x509_crt *cert, const mbedtls_ssl_ciphersuite_t *ciphersuite, int cert_endpoint, uint32_t *flags)
struct mbedtls_ssl_hs_buffer mbedtls_ssl_hs_buffer
Definition: ssl_internal.h:416
#define MBEDTLS_SSL_MAX_BUFFERED_HS
Definition: ssl_internal.h:167
void mbedtls_x509_crt_restart_ctx
Definition: x509_crt.h:199
int mbedtls_ssl_psk_derive_premaster(mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex)
int mbedtls_ssl_check_curve(const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id)
mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash(unsigned char hash)
int mbedtls_ssl_get_key_exchange_md_ssl_tls(mbedtls_ssl_context *ssl, unsigned char *output, unsigned char *data, size_t data_len)
void(* calc_verify)(mbedtls_ssl_context *, unsigned char *)
Definition: ssl_internal.h:378
int mbedtls_ssl_send_fatal_handshake_failure(mbedtls_ssl_context *ssl)
mbedtls_key_exchange_type_t
int mbedtls_ssl_read_record(mbedtls_ssl_context *ssl, unsigned update_hs_digest)
Update record layer.
mbedtls_ssl_sig_hash_set_t hash_algs
Definition: ssl_internal.h:266
unsigned char * verify_cookie
Definition: ssl_internal.h:314
static mbedtls_x509_crt * mbedtls_ssl_own_cert(mbedtls_ssl_context *ssl)
Definition: ssl_internal.h:668
mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig(unsigned char sig)
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
mbedtls_ecp_group_id
Domain-parameter identifiers: curve, subgroup, and generator.
Definition: ecp.h:71
int mbedtls_ssl_write_record(mbedtls_ssl_context *ssl, uint8_t force_flush)
The DHM context structure.
Definition: dhm.h:102
const mbedtls_ssl_config * conf
Definition: ssl.h:1024
The SHA-256 context structure.
Definition: sha256.h:58
void mbedtls_ssl_sig_hash_set_const_hash(mbedtls_ssl_sig_hash_set_t *set, mbedtls_md_type_t md_alg)
The ECDH context structure.
Definition: ecdh.h:104
int mbedtls_ssl_write_certificate(mbedtls_ssl_context *ssl)
int mbedtls_ssl_flight_transmit(mbedtls_ssl_context *ssl)
This structure is used for storing ciphersuite information.
#define MBEDTLS_PREMASTER_SIZE
Definition: ssl.h:416
int mbedtls_ssl_write_handshake_msg(mbedtls_ssl_context *ssl)
int mbedtls_ssl_parse_change_cipher_spec(mbedtls_ssl_context *ssl)
void mbedtls_ssl_write_version(int major, int minor, int transport, unsigned char ver[2])
mbedtls_cipher_context_t cipher_ctx_dec
Definition: ssl_internal.h:448
mbedtls_ssl_key_cert * next
Definition: ssl_internal.h:467
void mbedtls_ssl_recv_flight_completed(mbedtls_ssl_context *ssl)
This file contains SHA-1 definitions and functions.
int mbedtls_ssl_flush_output(mbedtls_ssl_context *ssl)
MD5 context structure.
Definition: md5.h:59
void mbedtls_ssl_optimize_checksum(mbedtls_ssl_context *ssl, const mbedtls_ssl_ciphersuite_t *ciphersuite_info)
void mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl)
Container for an X.509 certificate.
Definition: x509_crt.h:53
mbedtls_md_type_t ecdsa
Definition: ssl_internal.h:250
The SHA-1 context structure.
Definition: sha1.h:63
This file contains SHA-384 and SHA-512 definitions and functions.
int mbedtls_ssl_check_sig_hash(const mbedtls_ssl_context *ssl, mbedtls_md_type_t md)
mbedtls_ssl_key_cert * sni_key_cert
Definition: ssl_internal.h:293
SSL/TLS functions.
mbedtls_pk_context * key
Definition: ssl_internal.h:466
int mbedtls_ssl_handshake_client_step(mbedtls_ssl_context *ssl)
EC J-PAKE context structure.
Definition: ecjpake.h:71
unsigned char premaster[MBEDTLS_PREMASTER_SIZE]
Definition: ssl_internal.h:387
void mbedtls_ssl_handshake_wrapup(mbedtls_ssl_context *ssl)
mbedtls_ssl_flight_item * flight
Definition: ssl_internal.h:321
mbedtls_x509_crl * sni_ca_crl
Definition: ssl_internal.h:295
void mbedtls_ssl_dtls_replay_update(mbedtls_ssl_context *ssl)
mbedtls_md_type_t
Supported message digests.
Definition: md.h:58
mbedtls_md_context_t md_ctx_enc
Definition: ssl_internal.h:444
#define md
Definition: compat-1.3.h:1982
MD5 message digest algorithm (hash function)
This file contains SHA-224 and SHA-256 definitions and functions.
mbedtls_x509_crt * cert
Definition: ssl_internal.h:465
mbedtls_dhm_context dhm_ctx
Definition: ssl_internal.h:269
static mbedtls_pk_context * mbedtls_ssl_own_key(mbedtls_ssl_context *ssl)
Definition: ssl_internal.h:656
static size_t mbedtls_ssl_hdr_len(const mbedtls_ssl_context *ssl)
Definition: ssl_internal.h:700
None.
Definition: md.h:59