2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 * ECC cipher suite support in OpenSSL originally developed by
13 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
15 /* ====================================================================
16 * Copyright 2005 Nokia. All rights reserved.
18 * The portions of the attached software ("Contribution") is developed by
19 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
22 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
23 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
24 * support (see RFC 4279) to OpenSSL.
26 * No patent licenses or other rights except those expressly stated in
27 * the OpenSSL open source license shall be deemed granted or received
28 * expressly, by implication, estoppel, or otherwise.
30 * No assurances are provided by Nokia that the Contribution does not
31 * infringe the patent or other intellectual property rights of any third
32 * party or that the license provides you with all the necessary rights
33 * to make use of the Contribution.
35 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
36 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
37 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
38 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
42 #ifndef HEADER_SSL_LOCL_H
43 # define HEADER_SSL_LOCL_H
50 # if defined(__unix) || defined(__unix__)
51 # include <sys/time.h> /* struct timeval for DTLS */
54 # include <openssl/buffer.h>
55 # include <openssl/comp.h>
56 # include <openssl/bio.h>
57 # include <openssl/stack.h>
58 # include <openssl/rsa.h>
59 # include <openssl/dsa.h>
60 # include <openssl/err.h>
61 # include <openssl/ssl.h>
62 # include <openssl/async.h>
63 # include <openssl/symhacks.h>
64 # include <openssl/ct.h>
65 #include "record/record.h"
66 #include "statem/statem.h"
67 #include "packet_locl.h"
68 #include "internal/dane.h"
70 # ifdef OPENSSL_BUILD_SHLIBSSL
71 # undef OPENSSL_EXTERN
72 # define OPENSSL_EXTERN OPENSSL_EXPORT
77 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
78 l|=(((unsigned long)(*((c)++)))<< 8), \
79 l|=(((unsigned long)(*((c)++)))<<16), \
80 l|=(((unsigned long)(*((c)++)))<<24))
82 /* NOTE - c is not incremented as per c2l */
83 # define c2ln(c,l1,l2,n) { \
87 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
88 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
89 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
90 case 5: l2|=((unsigned long)(*(--(c)))); \
91 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
92 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
93 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
94 case 1: l1|=((unsigned long)(*(--(c)))); \
98 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
99 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
100 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
101 *((c)++)=(unsigned char)(((l)>>24)&0xff))
103 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
104 l|=((unsigned long)(*((c)++)))<<16, \
105 l|=((unsigned long)(*((c)++)))<< 8, \
106 l|=((unsigned long)(*((c)++))))
108 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
109 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
110 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
111 *((c)++)=(unsigned char)(((l) )&0xff))
113 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
114 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
115 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
116 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
117 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
118 *((c)++)=(unsigned char)(((l) )&0xff))
120 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
121 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
122 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
123 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
124 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
125 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
126 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
127 *((c)++)=(unsigned char)(((l) )&0xff))
129 /* NOTE - c is not incremented as per l2c */
130 # define l2cn(l1,l2,c,n) { \
133 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
134 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
135 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
136 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
137 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
138 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
139 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
140 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
144 # define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \
145 (((unsigned int)((c)[1])) )),(c)+=2)
146 # define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \
147 (c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2)
149 # define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \
150 (((unsigned long)((c)[1]))<< 8)| \
151 (((unsigned long)((c)[2])) )),(c)+=3)
153 # define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \
154 (c)[1]=(unsigned char)(((l)>> 8)&0xff), \
155 (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3)
157 /* DTLS version numbers are strange because they're inverted. Except
158 * for DTLS1_BAD_VER, which should be considered "lower" than the rest. */
159 #define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
160 #define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
161 #define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
162 #define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
163 #define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
167 # define SSL_DECRYPT 0
168 # define SSL_ENCRYPT 1
170 # define TWO_BYTE_BIT 0x80
171 # define SEC_ESC_BIT 0x40
172 # define TWO_BYTE_MASK 0x7fff
173 # define THREE_BYTE_MASK 0x3fff
175 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
176 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
177 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
180 * Define the Bitmasks for SSL_CIPHER.algorithms.
181 * This bits are used packed as dense as possible. If new methods/ciphers
182 * etc will be added, the bits a likely to change, so this information
183 * is for internal library use only, even though SSL_CIPHER.algorithms
184 * can be publicly accessed.
185 * Use the according functions for cipher management instead.
187 * The bit mask handling in the selection and sorting scheme in
188 * ssl_create_cipher_list() has only limited capabilities, reflecting
189 * that the different entities within are mutually exclusive:
190 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
193 /* Bits for algorithm_mkey (key exchange algorithm) */
194 /* RSA key exchange */
195 # define SSL_kRSA 0x00000001U
196 /* tmp DH key no DH cert */
197 # define SSL_kDHE 0x00000002U
199 # define SSL_kEDH SSL_kDHE
201 # define SSL_kECDHE 0x00000004U
203 # define SSL_kEECDH SSL_kECDHE
205 # define SSL_kPSK 0x00000008U
206 /* GOST key exchange */
207 # define SSL_kGOST 0x00000010U
209 # define SSL_kSRP 0x00000020U
211 # define SSL_kRSAPSK 0x00000040U
212 # define SSL_kECDHEPSK 0x00000080U
213 # define SSL_kDHEPSK 0x00000100U
217 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
219 /* Bits for algorithm_auth (server authentication) */
221 # define SSL_aRSA 0x00000001U
223 # define SSL_aDSS 0x00000002U
224 /* no auth (i.e. use ADH or AECDH) */
225 # define SSL_aNULL 0x00000004U
227 # define SSL_aECDSA 0x00000008U
229 # define SSL_aPSK 0x00000010U
230 /* GOST R 34.10-2001 signature auth */
231 # define SSL_aGOST01 0x00000020U
233 # define SSL_aSRP 0x00000040U
234 /* GOST R 34.10-2012 signature auth */
235 # define SSL_aGOST12 0x00000080U
237 /* Bits for algorithm_enc (symmetric encryption) */
238 # define SSL_DES 0x00000001U
239 # define SSL_3DES 0x00000002U
240 # define SSL_RC4 0x00000004U
241 # define SSL_RC2 0x00000008U
242 # define SSL_IDEA 0x00000010U
243 # define SSL_eNULL 0x00000020U
244 # define SSL_AES128 0x00000040U
245 # define SSL_AES256 0x00000080U
246 # define SSL_CAMELLIA128 0x00000100U
247 # define SSL_CAMELLIA256 0x00000200U
248 # define SSL_eGOST2814789CNT 0x00000400U
249 # define SSL_SEED 0x00000800U
250 # define SSL_AES128GCM 0x00001000U
251 # define SSL_AES256GCM 0x00002000U
252 # define SSL_AES128CCM 0x00004000U
253 # define SSL_AES256CCM 0x00008000U
254 # define SSL_AES128CCM8 0x00010000U
255 # define SSL_AES256CCM8 0x00020000U
256 # define SSL_eGOST2814789CNT12 0x00040000U
257 # define SSL_CHACHA20POLY1305 0x00080000U
259 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
260 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
261 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
262 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
263 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
265 /* Bits for algorithm_mac (symmetric authentication) */
267 # define SSL_MD5 0x00000001U
268 # define SSL_SHA1 0x00000002U
269 # define SSL_GOST94 0x00000004U
270 # define SSL_GOST89MAC 0x00000008U
271 # define SSL_SHA256 0x00000010U
272 # define SSL_SHA384 0x00000020U
273 /* Not a real MAC, just an indication it is part of cipher */
274 # define SSL_AEAD 0x00000040U
275 # define SSL_GOST12_256 0x00000080U
276 # define SSL_GOST89MAC12 0x00000100U
277 # define SSL_GOST12_512 0x00000200U
280 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
281 * sure to update this constant too
284 # define SSL_MD_MD5_IDX 0
285 # define SSL_MD_SHA1_IDX 1
286 # define SSL_MD_GOST94_IDX 2
287 # define SSL_MD_GOST89MAC_IDX 3
288 # define SSL_MD_SHA256_IDX 4
289 # define SSL_MD_SHA384_IDX 5
290 # define SSL_MD_GOST12_256_IDX 6
291 # define SSL_MD_GOST89MAC12_IDX 7
292 # define SSL_MD_GOST12_512_IDX 8
293 # define SSL_MD_MD5_SHA1_IDX 9
294 # define SSL_MD_SHA224_IDX 10
295 # define SSL_MD_SHA512_IDX 11
296 # define SSL_MAX_DIGEST 12
298 /* Bits for algorithm2 (handshake digests and other extra flags) */
300 /* Bits 0-7 are handshake MAC */
301 # define SSL_HANDSHAKE_MAC_MASK 0xFF
302 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
303 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
304 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
305 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
306 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
307 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
308 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
310 /* Bits 8-15 bits are PRF */
311 # define TLS1_PRF_DGST_SHIFT 8
312 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
313 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
314 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
315 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
316 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
317 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
318 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
321 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
322 * goes into algorithm2)
324 # define TLS1_STREAM_MAC 0x10000
326 # define SSL_STRONG_MASK 0x0000001FU
327 # define SSL_DEFAULT_MASK 0X00000020U
329 # define SSL_STRONG_NONE 0x00000001U
330 # define SSL_LOW 0x00000002U
331 # define SSL_MEDIUM 0x00000004U
332 # define SSL_HIGH 0x00000008U
333 # define SSL_FIPS 0x00000010U
334 # define SSL_NOT_DEFAULT 0x00000020U
336 /* we have used 0000003f - 26 bits left to go */
338 /* Check if an SSL structure is using DTLS */
339 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
340 /* See if we need explicit IV */
341 # define SSL_USE_EXPLICIT_IV(s) \
342 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
344 * See if we use signature algorithms extension and signature algorithm
347 # define SSL_USE_SIGALGS(s) \
348 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
350 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
351 * apply to others in future.
353 # define SSL_USE_TLS1_2_CIPHERS(s) \
354 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
356 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
357 * flags because it may not be set to correct version yet.
359 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
360 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
361 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
363 * Determine if a client should send signature algorithms extension:
364 * as with TLS1.2 cipher we can't rely on method flags.
366 # define SSL_CLIENT_USE_SIGALGS(s) \
367 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
369 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
371 /* Mostly for SSLv3 */
372 # define SSL_PKEY_RSA_ENC 0
373 # define SSL_PKEY_RSA_SIGN 1
374 # define SSL_PKEY_DSA_SIGN 2
375 # define SSL_PKEY_ECC 3
376 # define SSL_PKEY_GOST01 4
377 # define SSL_PKEY_GOST12_256 5
378 # define SSL_PKEY_GOST12_512 6
379 # define SSL_PKEY_NUM 7
381 * Pseudo-constant. GOST cipher suites can use different certs for 1
382 * SSL_CIPHER. So let's see which one we have in fact.
384 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
387 * SSL_kRSA <- RSA_ENC
388 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
389 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
390 * SSL_aRSA <- RSA_ENC | RSA_SIGN
391 * SSL_aDSS <- DSA_SIGN
395 #define CERT_INVALID 0
396 #define CERT_PUBLIC_KEY 1
397 #define CERT_PRIVATE_KEY 2
401 /* CipherSuite length. SSLv3 and all TLS versions. */
402 #define TLS_CIPHER_LEN 2
403 /* used to hold info on the particular ciphers used */
404 struct ssl_cipher_st
{
406 const char *name
; /* text name */
407 uint32_t id
; /* id, 4 bytes, first is version */
409 * changed in 1.0.0: these four used to be portions of a single value
412 uint32_t algorithm_mkey
; /* key exchange algorithm */
413 uint32_t algorithm_auth
; /* server authentication */
414 uint32_t algorithm_enc
; /* symmetric encryption */
415 uint32_t algorithm_mac
; /* symmetric authentication */
416 int min_tls
; /* minimum SSL/TLS protocol version */
417 int max_tls
; /* maximum SSL/TLS protocol version */
418 int min_dtls
; /* minimum DTLS protocol version */
419 int max_dtls
; /* maximum DTLS protocol version */
420 uint32_t algo_strength
; /* strength and export flags */
421 uint32_t algorithm2
; /* Extra flags */
422 int32_t strength_bits
; /* Number of bits really used */
423 uint32_t alg_bits
; /* Number of bits for algorithm */
426 /* Used to hold SSL/TLS functions */
427 struct ssl_method_st
{
431 int (*ssl_new
) (SSL
*s
);
432 void (*ssl_clear
) (SSL
*s
);
433 void (*ssl_free
) (SSL
*s
);
434 int (*ssl_accept
) (SSL
*s
);
435 int (*ssl_connect
) (SSL
*s
);
436 int (*ssl_read
) (SSL
*s
, void *buf
, int len
);
437 int (*ssl_peek
) (SSL
*s
, void *buf
, int len
);
438 int (*ssl_write
) (SSL
*s
, const void *buf
, int len
);
439 int (*ssl_shutdown
) (SSL
*s
);
440 int (*ssl_renegotiate
) (SSL
*s
);
441 int (*ssl_renegotiate_check
) (SSL
*s
);
442 int (*ssl_read_bytes
) (SSL
*s
, int type
, int *recvd_type
,
443 unsigned char *buf
, int len
, int peek
);
444 int (*ssl_write_bytes
) (SSL
*s
, int type
, const void *buf_
, int len
);
445 int (*ssl_dispatch_alert
) (SSL
*s
);
446 long (*ssl_ctrl
) (SSL
*s
, int cmd
, long larg
, void *parg
);
447 long (*ssl_ctx_ctrl
) (SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
);
448 const SSL_CIPHER
*(*get_cipher_by_char
) (const unsigned char *ptr
);
449 int (*put_cipher_by_char
) (const SSL_CIPHER
*cipher
, unsigned char *ptr
);
450 int (*ssl_pending
) (const SSL
*s
);
451 int (*num_ciphers
) (void);
452 const SSL_CIPHER
*(*get_cipher
) (unsigned ncipher
);
453 long (*get_timeout
) (void);
454 const struct ssl3_enc_method
*ssl3_enc
; /* Extra SSLv3/TLS stuff */
455 int (*ssl_version
) (void);
456 long (*ssl_callback_ctrl
) (SSL
*s
, int cb_id
, void (*fp
) (void));
457 long (*ssl_ctx_callback_ctrl
) (SSL_CTX
*s
, int cb_id
, void (*fp
) (void));
461 * Lets make this into an ASN.1 type structure as follows
462 * SSL_SESSION_ID ::= SEQUENCE {
463 * version INTEGER, -- structure version number
464 * SSLversion INTEGER, -- SSL version number
465 * Cipher OCTET STRING, -- the 3 byte cipher ID
466 * Session_ID OCTET STRING, -- the Session ID
467 * Master_key OCTET STRING, -- the master key
468 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
469 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
470 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
471 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
472 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
473 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
474 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
475 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
476 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
477 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
478 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
479 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
480 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
481 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
483 * Look in ssl/ssl_asn1.c for more details
484 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
486 struct ssl_session_st
{
487 int ssl_version
; /* what ssl version session info is being
489 int master_key_length
;
490 unsigned char master_key
[SSL_MAX_MASTER_KEY_LENGTH
];
491 /* session_id - valid? */
492 unsigned int session_id_length
;
493 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
495 * this is used to determine whether the session is being reused in the
496 * appropriate context. It is up to the application to set this, via
499 unsigned int sid_ctx_length
;
500 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
501 # ifndef OPENSSL_NO_PSK
502 char *psk_identity_hint
;
506 * Used to indicate that session resumption is not allowed. Applications
507 * can also set this bit for a new session via not_resumable_session_cb
508 * to disable session caching and tickets.
511 /* This is the cert and type for the other end. */
514 /* Certificate chain peer sent */
515 STACK_OF(X509
) *peer_chain
;
517 * when app_verify_callback accepts a session where the peer's
518 * certificate is not ok, we must remember the error for session reuse:
520 long verify_result
; /* only for servers */
524 unsigned int compress_meth
; /* Need to lookup the method */
525 const SSL_CIPHER
*cipher
;
526 unsigned long cipher_id
; /* when ASN.1 loaded, this needs to be used
527 * to load the 'cipher' structure */
528 STACK_OF(SSL_CIPHER
) *ciphers
; /* shared ciphers? */
529 CRYPTO_EX_DATA ex_data
; /* application specific data */
531 * These are used to make removal of session-ids more efficient and to
532 * implement a maximum cache size.
534 struct ssl_session_st
*prev
, *next
;
535 char *tlsext_hostname
;
536 # ifndef OPENSSL_NO_EC
537 size_t tlsext_ecpointformatlist_length
;
538 unsigned char *tlsext_ecpointformatlist
; /* peer's list */
539 size_t tlsext_ellipticcurvelist_length
;
540 unsigned char *tlsext_ellipticcurvelist
; /* peer's list */
541 # endif /* OPENSSL_NO_EC */
543 unsigned char *tlsext_tick
; /* Session ticket */
544 size_t tlsext_ticklen
; /* Session ticket length */
545 unsigned long tlsext_tick_lifetime_hint
; /* Session lifetime hint in seconds */
546 # ifndef OPENSSL_NO_SRP
553 /* Extended master secret support */
554 # define SSL_SESS_FLAG_EXTMS 0x1
557 # ifndef OPENSSL_NO_SRP
559 typedef struct srp_ctx_st
{
560 /* param for all the callbacks */
562 /* set client Hello login callback */
563 int (*TLS_ext_srp_username_callback
) (SSL
*, int *, void *);
564 /* set SRP N/g param callback for verification */
565 int (*SRP_verify_param_callback
) (SSL
*, void *);
566 /* set SRP client passwd callback */
567 char *(*SRP_give_srp_client_pwd_callback
) (SSL
*, void *);
569 BIGNUM
*N
, *g
, *s
, *B
, *A
;
573 unsigned long srp_Mask
;
584 DEFINE_LHASH_OF(SSL_SESSION
);
585 /* Needed in ssl_cert.c */
586 DEFINE_LHASH_OF(X509_NAME
);
588 #define TLSEXT_KEYNAME_LENGTH 16
591 const SSL_METHOD
*method
;
592 STACK_OF(SSL_CIPHER
) *cipher_list
;
593 /* same as above but sorted for lookup */
594 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
595 struct x509_store_st
/* X509_STORE */ *cert_store
;
596 LHASH_OF(SSL_SESSION
) *sessions
;
598 * Most session-ids that will be cached, default is
599 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
601 unsigned long session_cache_size
;
602 struct ssl_session_st
*session_cache_head
;
603 struct ssl_session_st
*session_cache_tail
;
605 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
606 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
607 * means only SSL_accept which cache SSL_SESSIONS.
609 uint32_t session_cache_mode
;
611 * If timeout is not 0, it is the default timeout value set when
612 * SSL_new() is called. This has been put in to make life easier to set
615 long session_timeout
;
617 * If this callback is not null, it will be called each time a session id
618 * is added to the cache. If this function returns 1, it means that the
619 * callback will do a SSL_SESSION_free() when it has finished using it.
620 * Otherwise, on 0, it means the callback has finished with it. If
621 * remove_session_cb is not null, it will be called when a session-id is
622 * removed from the cache. After the call, OpenSSL will
623 * SSL_SESSION_free() it.
625 int (*new_session_cb
) (struct ssl_st
*ssl
, SSL_SESSION
*sess
);
626 void (*remove_session_cb
) (struct ssl_ctx_st
*ctx
, SSL_SESSION
*sess
);
627 SSL_SESSION
*(*get_session_cb
) (struct ssl_st
*ssl
,
628 const unsigned char *data
, int len
,
631 int sess_connect
; /* SSL new conn - started */
632 int sess_connect_renegotiate
; /* SSL reneg - requested */
633 int sess_connect_good
; /* SSL new conne/reneg - finished */
634 int sess_accept
; /* SSL new accept - started */
635 int sess_accept_renegotiate
; /* SSL reneg - requested */
636 int sess_accept_good
; /* SSL accept/reneg - finished */
637 int sess_miss
; /* session lookup misses */
638 int sess_timeout
; /* reuse attempt on timeouted session */
639 int sess_cache_full
; /* session removed due to full cache */
640 int sess_hit
; /* session reuse actually done */
641 int sess_cb_hit
; /* session-id that was not in the cache was
642 * passed back via the callback. This
643 * indicates that the application is
644 * supplying session-id's from other
645 * processes - spooky :-) */
650 /* if defined, these override the X509_verify_cert() calls */
651 int (*app_verify_callback
) (X509_STORE_CTX
*, void *);
652 void *app_verify_arg
;
654 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
655 * ('app_verify_callback' was called with just one argument)
658 /* Default password callback. */
659 pem_password_cb
*default_passwd_callback
;
661 /* Default password callback user data. */
662 void *default_passwd_callback_userdata
;
664 /* get client cert callback */
665 int (*client_cert_cb
) (SSL
*ssl
, X509
**x509
, EVP_PKEY
**pkey
);
667 /* cookie generate callback */
668 int (*app_gen_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
669 unsigned int *cookie_len
);
671 /* verify cookie callback */
672 int (*app_verify_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
673 unsigned int cookie_len
);
675 CRYPTO_EX_DATA ex_data
;
677 const EVP_MD
*md5
; /* For SSLv3/TLSv1 'ssl3-md5' */
678 const EVP_MD
*sha1
; /* For SSLv3/TLSv1 'ssl3->sha1' */
680 STACK_OF(X509
) *extra_certs
;
681 STACK_OF(SSL_COMP
) *comp_methods
; /* stack of SSL_COMP, SSLv3/TLSv1 */
683 /* Default values used when no per-SSL value is defined follow */
685 /* used if SSL's info_callback is NULL */
686 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
688 /* what we put in client cert requests */
689 STACK_OF(X509_NAME
) *client_CA
;
692 * Default values to use in SSL structures follow (these are copied by
698 int min_proto_version
;
699 int max_proto_version
;
702 struct cert_st
/* CERT */ *cert
;
705 /* callback that allows applications to peek at protocol messages */
706 void (*msg_callback
) (int write_p
, int version
, int content_type
,
707 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
708 void *msg_callback_arg
;
710 uint32_t verify_mode
;
711 unsigned int sid_ctx_length
;
712 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
713 /* called 'verify_callback' in the SSL */
714 int (*default_verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
716 /* Default generate session ID callback. */
717 GEN_SESSION_CB generate_session_id
;
719 X509_VERIFY_PARAM
*param
;
723 # ifndef OPENSSL_NO_CT
724 CTLOG_STORE
*ctlog_store
; /* CT Log Store */
726 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
727 * If they are not, the connection should be aborted.
729 ssl_ct_validation_cb ct_validation_callback
;
730 void *ct_validation_callback_arg
;
734 * If we're using more than one pipeline how should we divide the data
735 * up between the pipes?
737 unsigned int split_send_fragment
;
739 * Maximum amount of data to send in one fragment. actual record size can
740 * be more than this due to padding and MAC overheads.
742 unsigned int max_send_fragment
;
744 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
745 unsigned int max_pipelines
;
747 /* The default read buffer length to use (0 means not set) */
748 size_t default_read_buf_len
;
750 # ifndef OPENSSL_NO_ENGINE
752 * Engine to pass requests for client certs to
754 ENGINE
*client_cert_engine
;
757 /* TLS extensions servername callback */
758 int (*tlsext_servername_callback
) (SSL
*, int *, void *);
759 void *tlsext_servername_arg
;
760 /* RFC 4507 session ticket keys */
761 unsigned char tlsext_tick_key_name
[TLSEXT_KEYNAME_LENGTH
];
762 unsigned char tlsext_tick_hmac_key
[32];
763 unsigned char tlsext_tick_aes_key
[32];
764 /* Callback to support customisation of ticket key setting */
765 int (*tlsext_ticket_key_cb
) (SSL
*ssl
,
766 unsigned char *name
, unsigned char *iv
,
767 EVP_CIPHER_CTX
*ectx
,
768 HMAC_CTX
*hctx
, int enc
);
770 /* certificate status request info */
771 /* Callback for status request */
772 int (*tlsext_status_cb
) (SSL
*ssl
, void *arg
);
773 void *tlsext_status_arg
;
775 # ifndef OPENSSL_NO_PSK
776 unsigned int (*psk_client_callback
) (SSL
*ssl
, const char *hint
,
778 unsigned int max_identity_len
,
780 unsigned int max_psk_len
);
781 unsigned int (*psk_server_callback
) (SSL
*ssl
, const char *identity
,
783 unsigned int max_psk_len
);
786 # ifndef OPENSSL_NO_SRP
787 SRP_CTX srp_ctx
; /* ctx for SRP authentication */
790 # ifndef OPENSSL_NO_NEXTPROTONEG
791 /* Next protocol negotiation information */
794 * For a server, this contains a callback function by which the set of
795 * advertised protocols can be provided.
797 int (*next_protos_advertised_cb
) (SSL
*s
, const unsigned char **buf
,
798 unsigned int *len
, void *arg
);
799 void *next_protos_advertised_cb_arg
;
801 * For a client, this contains a callback function that selects the next
802 * protocol from the list provided by the server.
804 int (*next_proto_select_cb
) (SSL
*s
, unsigned char **out
,
805 unsigned char *outlen
,
806 const unsigned char *in
,
807 unsigned int inlen
, void *arg
);
808 void *next_proto_select_cb_arg
;
812 * ALPN information (we are in the process of transitioning from NPN to
817 * For a server, this contains a callback function that allows the
818 * server to select the protocol for the connection.
819 * out: on successful return, this must point to the raw protocol
820 * name (without the length prefix).
821 * outlen: on successful return, this contains the length of |*out|.
822 * in: points to the client's list of supported protocols in
824 * inlen: the length of |in|.
826 int (*alpn_select_cb
) (SSL
*s
,
827 const unsigned char **out
,
828 unsigned char *outlen
,
829 const unsigned char *in
,
830 unsigned int inlen
, void *arg
);
831 void *alpn_select_cb_arg
;
834 * For a client, this contains the list of supported protocols in wire
837 unsigned char *alpn_client_proto_list
;
838 unsigned alpn_client_proto_list_len
;
840 /* Shared DANE context */
841 struct dane_ctx_st dane
;
843 /* SRTP profiles we are willing to do from RFC 5764 */
844 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
846 * Callback for disabling session caching and ticket support on a session
847 * basis, depending on the chosen cipher.
849 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
850 # ifndef OPENSSL_NO_EC
851 /* EC extension values inherited by SSL structure */
852 size_t tlsext_ecpointformatlist_length
;
853 unsigned char *tlsext_ecpointformatlist
;
854 size_t tlsext_ellipticcurvelist_length
;
855 unsigned char *tlsext_ellipticcurvelist
;
856 # endif /* OPENSSL_NO_EC */
858 /* ext status type used for CSR extension (OCSP Stapling) */
859 int tlsext_status_type
;
867 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
873 const SSL_METHOD
*method
;
875 * There are 2 BIO's even though they are normally both the same. This
876 * is so data can be read and written to different handlers
878 /* used by SSL_read */
880 /* used by SSL_write */
882 /* used during session-id reuse to concatenate messages */
885 * This holds a variable that indicates what we were doing when a 0 or -1
886 * is returned. This is needed for non-blocking IO so we know what
887 * request needs re-doing when in SSL_accept or SSL_connect
891 int (*handshake_func
) (SSL
*);
893 * Imagine that here's a boolean member "init" that is switched as soon
894 * as SSL_set_{accept/connect}_state is called for the first time, so
895 * that "state" and "handshake_func" are properly initialized. But as
896 * handshake_func is == 0 until then, we use this test instead of an
899 /* are we the server side? */
902 * Generate a new session or reuse an old one.
903 * NB: For servers, the 'new' session may actually be a previously
904 * cached session or even the previous session unless
905 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
908 /* don't send shutdown packets */
910 /* we have shut things down, 0x01 sent, 0x02 for received */
915 BUF_MEM
*init_buf
; /* buffer used during init */
916 void *init_msg
; /* pointer to handshake message body, set by
917 * ssl3_get_message() */
918 int init_num
; /* amount read/written */
919 int init_off
; /* amount read/written */
921 struct ssl3_state_st
*s3
; /* SSLv3 variables */
922 struct dtls1_state_st
*d1
; /* DTLSv1 variables */
924 /* callback that allows applications to peek at protocol messages */
925 void (*msg_callback
) (int write_p
, int version
, int content_type
,
926 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
927 void *msg_callback_arg
;
928 int hit
; /* reusing a previous session */
929 X509_VERIFY_PARAM
*param
;
931 /* Per connection DANE state */
935 STACK_OF(SSL_CIPHER
) *cipher_list
;
936 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
938 * These are the ones being used, the ones in SSL_SESSION are the ones to
939 * be 'copied' into these ones
942 EVP_CIPHER_CTX
*enc_read_ctx
; /* cryptographic state */
943 EVP_MD_CTX
*read_hash
; /* used for mac generation */
944 COMP_CTX
*compress
; /* compression */
945 COMP_CTX
*expand
; /* uncompress */
946 EVP_CIPHER_CTX
*enc_write_ctx
; /* cryptographic state */
947 EVP_MD_CTX
*write_hash
; /* used for mac generation */
950 /* This is used to hold the server certificate used */
951 struct cert_st
/* CERT */ *cert
;
953 * the session_id_context is used to ensure sessions are only reused in
954 * the appropriate context
956 unsigned int sid_ctx_length
;
957 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
958 /* This can also be in the session once a session is established */
959 SSL_SESSION
*session
;
960 /* Default generate session ID callback. */
961 GEN_SESSION_CB generate_session_id
;
964 * 0 don't care about verify failure.
965 * 1 fail if verify fails
967 uint32_t verify_mode
;
968 /* fail if callback returns 0 */
969 int (*verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
970 /* optional informational callback */
971 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
972 /* error bytes to be written */
976 # ifndef OPENSSL_NO_PSK
977 unsigned int (*psk_client_callback
) (SSL
*ssl
, const char *hint
,
979 unsigned int max_identity_len
,
981 unsigned int max_psk_len
);
982 unsigned int (*psk_server_callback
) (SSL
*ssl
, const char *identity
,
984 unsigned int max_psk_len
);
987 /* Verified chain of peer */
988 STACK_OF(X509
) *verified_chain
;
990 /* extra application data */
991 CRYPTO_EX_DATA ex_data
;
992 /* for server side, keep the list of CA_dn we can use */
993 STACK_OF(X509_NAME
) *client_CA
;
995 /* protocol behaviour */
999 int min_proto_version
;
1000 int max_proto_version
;
1003 /* what was passed, used for SSLv3/TLS rollback check */
1007 * If we're using more than one pipeline how should we divide the data
1008 * up between the pipes?
1010 unsigned int split_send_fragment
;
1012 * Maximum amount of data to send in one fragment. actual record size can
1013 * be more than this due to padding and MAC overheads.
1015 unsigned int max_send_fragment
;
1017 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1018 unsigned int max_pipelines
;
1020 /* TLS extension debug callback */
1021 void (*tlsext_debug_cb
) (SSL
*s
, int client_server
, int type
,
1022 const unsigned char *data
, int len
, void *arg
);
1023 void *tlsext_debug_arg
;
1024 char *tlsext_hostname
;
1026 * no further mod of servername
1027 * 0 : call the servername extension callback.
1028 * 1 : prepare 2, allow last ack just after in server callback.
1029 * 2 : don't call servername callback, no ack in server hello
1031 int servername_done
;
1032 /* certificate status request info */
1033 /* Status type or -1 if no status type */
1034 int tlsext_status_type
;
1035 # ifndef OPENSSL_NO_CT
1037 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1038 * If they are not, the connection should be aborted.
1040 ssl_ct_validation_cb ct_validation_callback
;
1041 /* User-supplied argument tha tis passed to the ct_validation_callback */
1042 void *ct_validation_callback_arg
;
1044 * Consolidated stack of SCTs from all sources.
1045 * Lazily populated by CT_get_peer_scts(SSL*)
1047 STACK_OF(SCT
) *scts
;
1048 /* Raw extension data, if seen */
1049 unsigned char *tlsext_scts
;
1050 /* Length of raw extension data, if seen */
1051 uint16_t tlsext_scts_len
;
1052 /* Have we attempted to find/parse SCTs yet? */
1055 /* Expect OCSP CertificateStatus message */
1056 int tlsext_status_expected
;
1057 /* OCSP status request only */
1058 STACK_OF(OCSP_RESPID
) *tlsext_ocsp_ids
;
1059 X509_EXTENSIONS
*tlsext_ocsp_exts
;
1060 /* OCSP response received or to be sent */
1061 unsigned char *tlsext_ocsp_resp
;
1062 int tlsext_ocsp_resplen
;
1063 /* RFC4507 session ticket expected to be received or sent */
1064 int tlsext_ticket_expected
;
1065 # ifndef OPENSSL_NO_EC
1066 size_t tlsext_ecpointformatlist_length
;
1068 unsigned char *tlsext_ecpointformatlist
;
1069 size_t tlsext_ellipticcurvelist_length
;
1071 unsigned char *tlsext_ellipticcurvelist
;
1072 # endif /* OPENSSL_NO_EC */
1073 /* TLS Session Ticket extension override */
1074 TLS_SESSION_TICKET_EXT
*tlsext_session_ticket
;
1075 /* TLS Session Ticket extension callback */
1076 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb
;
1077 void *tls_session_ticket_ext_cb_arg
;
1078 /* TLS pre-shared secret session resumption */
1079 tls_session_secret_cb_fn tls_session_secret_cb
;
1080 void *tls_session_secret_cb_arg
;
1081 SSL_CTX
*initial_ctx
; /* initial ctx, used to store sessions */
1082 # ifndef OPENSSL_NO_NEXTPROTONEG
1084 * Next protocol negotiation. For the client, this is the protocol that
1085 * we sent in NextProtocol and is set when handling ServerHello
1086 * extensions. For a server, this is the client's selected_protocol from
1087 * NextProtocol and is set when handling the NextProtocol message, before
1088 * the Finished message.
1090 unsigned char *next_proto_negotiated
;
1091 unsigned char next_proto_negotiated_len
;
1093 # define session_ctx initial_ctx
1095 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1096 /* What's been chosen */
1097 SRTP_PROTECTION_PROFILE
*srtp_profile
;
1099 * Is use of the Heartbeat extension negotiated?
1102 * 2: enabled, but not allowed to send Requests
1104 unsigned int tlsext_heartbeat
;
1105 /* Indicates if a HeartbeatRequest is in flight */
1106 unsigned int tlsext_hb_pending
;
1107 /* HeartbeatRequest sequence number */
1108 unsigned int tlsext_hb_seq
;
1110 * For a client, this contains the list of supported protocols in wire
1113 unsigned char *alpn_client_proto_list
;
1114 unsigned alpn_client_proto_list_len
;
1117 * 1 if we are renegotiating.
1118 * 2 if we are a server and are inside a handshake
1119 * (i.e. not just sending a HelloRequest)
1122 # ifndef OPENSSL_NO_SRP
1123 /* ctx for SRP authentication */
1127 * Callback for disabling session caching and ticket support on a session
1128 * basis, depending on the chosen cipher.
1130 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1132 RECORD_LAYER rlayer
;
1134 /* Default password callback. */
1135 pem_password_cb
*default_passwd_callback
;
1137 /* Default password callback user data. */
1138 void *default_passwd_callback_userdata
;
1140 /* Async Job info */
1142 ASYNC_WAIT_CTX
*waitctx
;
1144 CRYPTO_RWLOCK
*lock
;
1148 typedef struct ssl3_state_st
{
1150 int read_mac_secret_size
;
1151 unsigned char read_mac_secret
[EVP_MAX_MD_SIZE
];
1152 int write_mac_secret_size
;
1153 unsigned char write_mac_secret
[EVP_MAX_MD_SIZE
];
1154 unsigned char server_random
[SSL3_RANDOM_SIZE
];
1155 unsigned char client_random
[SSL3_RANDOM_SIZE
];
1156 /* flags for countermeasure against known-IV weakness */
1157 int need_empty_fragments
;
1158 int empty_fragment_done
;
1159 /* used during startup, digest all incoming/outgoing packets */
1160 BIO
*handshake_buffer
;
1162 * When handshake digest is determined, buffer is hashed and
1163 * freed and MD_CTX for the required digest is stored here.
1165 EVP_MD_CTX
*handshake_dgst
;
1167 * Set whenever an expected ChangeCipherSpec message is processed.
1168 * Unset when the peer's Finished message is received.
1169 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1171 int change_cipher_spec
;
1175 * we allow one fatal and one warning alert to be outstanding, send close
1176 * alert via the warning alert
1179 unsigned char send_alert
[2];
1181 * This flag is set when we should renegotiate ASAP, basically when there
1182 * is no more data in the read or write buffers
1185 int total_renegotiations
;
1186 int num_renegotiations
;
1187 int in_read_app_data
;
1189 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1190 unsigned char finish_md
[EVP_MAX_MD_SIZE
* 2];
1192 unsigned char peer_finish_md
[EVP_MAX_MD_SIZE
* 2];
1193 int peer_finish_md_len
;
1194 unsigned long message_size
;
1196 /* used to hold the new cipher we are going to use */
1197 const SSL_CIPHER
*new_cipher
;
1198 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1199 EVP_PKEY
*pkey
; /* holds short lived DH/ECDH key */
1201 /* used for certificate requests */
1204 char ctype
[SSL3_CT_NUMBER
];
1205 STACK_OF(X509_NAME
) *ca_names
;
1206 int key_block_length
;
1207 unsigned char *key_block
;
1208 const EVP_CIPHER
*new_sym_enc
;
1209 const EVP_MD
*new_hash
;
1210 int new_mac_pkey_type
;
1211 int new_mac_secret_size
;
1212 # ifndef OPENSSL_NO_COMP
1213 const SSL_COMP
*new_compression
;
1215 char *new_compression
;
1218 /* Raw values of the cipher list from a client */
1219 unsigned char *ciphers_raw
;
1220 size_t ciphers_rawlen
;
1221 /* Temporary storage for premaster secret */
1224 #ifndef OPENSSL_NO_PSK
1225 /* Temporary storage for PSK key */
1230 * signature algorithms peer reports: e.g. supported signature
1231 * algorithms extension for server or as part of a certificate
1232 * request for client.
1234 unsigned char *peer_sigalgs
;
1235 /* Size of above array */
1236 size_t peer_sigalgslen
;
1237 /* Digest peer uses for signing */
1238 const EVP_MD
*peer_md
;
1239 /* Array of digests used for signing */
1240 const EVP_MD
*md
[SSL_PKEY_NUM
];
1242 * Set if corresponding CERT_PKEY can be used with current
1243 * SSL session: e.g. appropriate curve, signature algorithms etc.
1244 * If zero it can't be used at all.
1246 uint32_t valid_flags
[SSL_PKEY_NUM
];
1248 * For servers the following masks are for the key and auth algorithms
1249 * that are supported by the certs below. For clients they are masks of
1250 * *disabled* algorithms based on the current session.
1255 * The following are used by the client to see if a cipher is allowed or
1256 * not. It contains the minimum and maximum version the client's using
1257 * based on what it knows so far.
1263 /* Connection binding to prevent renegotiation attacks */
1264 unsigned char previous_client_finished
[EVP_MAX_MD_SIZE
];
1265 unsigned char previous_client_finished_len
;
1266 unsigned char previous_server_finished
[EVP_MAX_MD_SIZE
];
1267 unsigned char previous_server_finished_len
;
1268 int send_connection_binding
; /* TODOEKR */
1270 # ifndef OPENSSL_NO_NEXTPROTONEG
1272 * Set if we saw the Next Protocol Negotiation extension from our peer.
1274 int next_proto_neg_seen
;
1278 * ALPN information (we are in the process of transitioning from NPN to
1283 * In a server these point to the selected ALPN protocol after the
1284 * ClientHello has been processed. In a client these contain the protocol
1285 * that the server selected once the ServerHello has been processed.
1287 unsigned char *alpn_selected
;
1288 size_t alpn_selected_len
;
1289 /* used by the server to know what options were proposed */
1290 unsigned char *alpn_proposed
;
1291 size_t alpn_proposed_len
;
1292 /* used by the client to know if it actually sent alpn */
1295 # ifndef OPENSSL_NO_EC
1297 * This is set to true if we believe that this is a version of Safari
1298 * running on OS X 10.6 or newer. We wish to know this because Safari on
1299 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1301 char is_probably_safari
;
1302 # endif /* !OPENSSL_NO_EC */
1304 /* For clients: peer temporary key */
1305 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1312 /* DTLS structures */
1314 # ifndef OPENSSL_NO_SCTP
1315 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1318 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1319 # define DTLS1_MAX_MTU_OVERHEAD 48
1322 * Flag used in message reuse to indicate the buffer contains the record
1323 * header as well as the the handshake message header.
1325 # define DTLS1_SKIP_RECORD_HEADER 2
1327 struct dtls1_retransmit_state
{
1328 EVP_CIPHER_CTX
*enc_write_ctx
; /* cryptographic state */
1329 EVP_MD_CTX
*write_hash
; /* used for mac generation */
1330 COMP_CTX
*compress
; /* compression */
1331 SSL_SESSION
*session
;
1332 unsigned short epoch
;
1335 struct hm_header_st
{
1337 unsigned long msg_len
;
1339 unsigned long frag_off
;
1340 unsigned long frag_len
;
1341 unsigned int is_ccs
;
1342 struct dtls1_retransmit_state saved_retransmit_state
;
1345 struct dtls1_timeout_st
{
1346 /* Number of read timeouts so far */
1347 unsigned int read_timeouts
;
1348 /* Number of write timeouts so far */
1349 unsigned int write_timeouts
;
1350 /* Number of alerts received so far */
1351 unsigned int num_alerts
;
1354 typedef struct hm_fragment_st
{
1355 struct hm_header_st msg_header
;
1356 unsigned char *fragment
;
1357 unsigned char *reassembly
;
1360 typedef struct pqueue_st pqueue
;
1361 typedef struct pitem_st pitem
;
1364 unsigned char priority
[8]; /* 64-bit value in big-endian encoding */
1369 typedef struct pitem_st
*piterator
;
1371 pitem
*pitem_new(unsigned char *prio64be
, void *data
);
1372 void pitem_free(pitem
*item
);
1373 pqueue
* pqueue_new(void);
1374 void pqueue_free(pqueue
*pq
);
1375 pitem
*pqueue_insert(pqueue
*pq
, pitem
*item
);
1376 pitem
*pqueue_peek(pqueue
*pq
);
1377 pitem
*pqueue_pop(pqueue
*pq
);
1378 pitem
*pqueue_find(pqueue
*pq
, unsigned char *prio64be
);
1379 pitem
*pqueue_iterator(pqueue
*pq
);
1380 pitem
*pqueue_next(piterator
*iter
);
1381 int pqueue_size(pqueue
*pq
);
1383 typedef struct dtls1_state_st
{
1384 unsigned char cookie
[DTLS1_COOKIE_LENGTH
];
1385 unsigned int cookie_len
;
1386 unsigned int cookie_verified
;
1388 /* handshake message numbers */
1389 unsigned short handshake_write_seq
;
1390 unsigned short next_handshake_write_seq
;
1391 unsigned short handshake_read_seq
;
1393 /* Buffered handshake messages */
1394 pqueue
*buffered_messages
;
1395 /* Buffered (sent) handshake records */
1396 pqueue
*sent_messages
;
1398 unsigned int link_mtu
; /* max on-the-wire DTLS packet size */
1399 unsigned int mtu
; /* max DTLS packet size */
1400 struct hm_header_st w_msg_hdr
;
1401 struct hm_header_st r_msg_hdr
;
1402 struct dtls1_timeout_st timeout
;
1404 * Indicates when the last handshake msg or heartbeat sent will timeout
1406 struct timeval next_timeout
;
1407 /* Timeout duration */
1408 unsigned short timeout_duration
;
1410 unsigned int retransmitting
;
1411 # ifndef OPENSSL_NO_SCTP
1412 int shutdown_received
;
1418 # ifndef OPENSSL_NO_EC
1420 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1422 # define EXPLICIT_PRIME_CURVE_TYPE 1
1423 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1424 # define NAMED_CURVE_TYPE 3
1425 # endif /* OPENSSL_NO_EC */
1427 typedef struct cert_pkey_st
{
1429 EVP_PKEY
*privatekey
;
1430 /* Chain for this certificate */
1431 STACK_OF(X509
) *chain
;
1434 * serverinfo data for this certificate. The data is in TLS Extension
1435 * wire format, specifically it's a series of records like:
1436 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1438 * uint8_t data[length];
1440 unsigned char *serverinfo
;
1441 size_t serverinfo_length
;
1443 /* Retrieve Suite B flags */
1444 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1445 /* Uses to check strict mode: suite B modes are always strict */
1446 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1447 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1450 unsigned short ext_type
;
1452 * Per-connection flags relating to this extension type: not used if
1453 * part of an SSL_CTX structure.
1456 custom_ext_add_cb add_cb
;
1457 custom_ext_free_cb free_cb
;
1459 custom_ext_parse_cb parse_cb
;
1461 } custom_ext_method
;
1463 /* ext_flags values */
1466 * Indicates an extension has been received. Used to check for unsolicited or
1467 * duplicate extensions.
1469 # define SSL_EXT_FLAG_RECEIVED 0x1
1471 * Indicates an extension has been sent: used to enable sending of
1472 * corresponding ServerHello extension.
1474 # define SSL_EXT_FLAG_SENT 0x2
1477 custom_ext_method
*meths
;
1479 } custom_ext_methods
;
1481 typedef struct cert_st
{
1482 /* Current active set */
1484 * ALWAYS points to an element of the pkeys array
1485 * Probably it would make more sense to store
1486 * an index, not a pointer.
1489 # ifndef OPENSSL_NO_DH
1491 DH
*(*dh_tmp_cb
) (SSL
*ssl
, int is_export
, int keysize
);
1494 /* Flags related to certificates */
1495 uint32_t cert_flags
;
1496 CERT_PKEY pkeys
[SSL_PKEY_NUM
];
1498 * Certificate types (received or sent) in certificate request message.
1499 * On receive this is only set if number of certificate types exceeds
1502 unsigned char *ctypes
;
1505 * supported signature algorithms. When set on a client this is sent in
1506 * the client hello as the supported signature algorithms extension. For
1507 * servers it represents the signature algorithms we are willing to use.
1509 unsigned char *conf_sigalgs
;
1510 /* Size of above array */
1511 size_t conf_sigalgslen
;
1513 * Client authentication signature algorithms, if not set then uses
1514 * conf_sigalgs. On servers these will be the signature algorithms sent
1515 * to the client in a cerificate request for TLS 1.2. On a client this
1516 * represents the signature algortithms we are willing to use for client
1519 unsigned char *client_sigalgs
;
1520 /* Size of above array */
1521 size_t client_sigalgslen
;
1523 * Signature algorithms shared by client and server: cached because these
1524 * are used most often.
1526 TLS_SIGALGS
*shared_sigalgs
;
1527 size_t shared_sigalgslen
;
1529 * Certificate setup callback: if set is called whenever a certificate
1530 * may be required (client or server). the callback can then examine any
1531 * appropriate parameters and setup any certificates required. This
1532 * allows advanced applications to select certificates on the fly: for
1533 * example based on supported signature algorithms or curves.
1535 int (*cert_cb
) (SSL
*ssl
, void *arg
);
1538 * Optional X509_STORE for chain building or certificate validation If
1539 * NULL the parent SSL_CTX store is used instead.
1541 X509_STORE
*chain_store
;
1542 X509_STORE
*verify_store
;
1543 /* Custom extension methods for server and client */
1544 custom_ext_methods cli_ext
;
1545 custom_ext_methods srv_ext
;
1546 /* Security callback */
1547 int (*sec_cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
1548 void *other
, void *ex
);
1549 /* Security level */
1552 #ifndef OPENSSL_NO_PSK
1553 /* If not NULL psk identity hint to use for servers */
1554 char *psk_identity_hint
;
1556 int references
; /* >1 only if SSL_copy_session_id is used */
1557 CRYPTO_RWLOCK
*lock
;
1560 /* Structure containing decoded values of signature algorithms extension */
1561 struct tls_sigalgs_st
{
1562 /* NID of hash algorithm */
1564 /* NID of signature algorithm */
1566 /* Combined hash and signature NID */
1567 int signandhash_nid
;
1568 /* Raw values used in extension */
1569 unsigned char rsign
;
1570 unsigned char rhash
;
1573 # define FP_ICC (int (*)(const void *,const void *))
1576 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1577 * of a mess of functions, but hell, think of it as an opaque structure :-)
1579 typedef struct ssl3_enc_method
{
1580 int (*enc
) (SSL
*, SSL3_RECORD
*, unsigned int, int);
1581 int (*mac
) (SSL
*, SSL3_RECORD
*, unsigned char *, int);
1582 int (*setup_key_block
) (SSL
*);
1583 int (*generate_master_secret
) (SSL
*, unsigned char *, unsigned char *,
1585 int (*change_cipher_state
) (SSL
*, int);
1586 int (*final_finish_mac
) (SSL
*, const char *, int, unsigned char *);
1587 int finish_mac_length
;
1588 const char *client_finished_label
;
1589 int client_finished_label_len
;
1590 const char *server_finished_label
;
1591 int server_finished_label_len
;
1592 int (*alert_value
) (int);
1593 int (*export_keying_material
) (SSL
*, unsigned char *, size_t,
1594 const char *, size_t,
1595 const unsigned char *, size_t,
1597 /* Various flags indicating protocol version requirements */
1599 /* Handshake header length */
1601 /* Set the handshake header */
1602 int (*set_handshake_header
) (SSL
*s
, int type
, unsigned long len
);
1603 /* Write out handshake message */
1604 int (*do_write
) (SSL
*s
);
1607 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1608 # define ssl_handshake_start(s) \
1609 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1610 # define ssl_set_handshake_header(s, htype, len) \
1611 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1612 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1614 /* Values for enc_flags */
1616 /* Uses explicit IV for CBC mode */
1617 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1618 /* Uses signature algorithms extension */
1619 # define SSL_ENC_FLAG_SIGALGS 0x2
1620 /* Uses SHA256 default PRF */
1621 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1623 # define SSL_ENC_FLAG_DTLS 0x8
1625 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1626 * apply to others in future.
1628 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1630 # ifndef OPENSSL_NO_COMP
1631 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1632 typedef struct ssl3_comp_st
{
1633 int comp_id
; /* The identifier byte for this compression
1635 char *name
; /* Text name used for the compression type */
1636 COMP_METHOD
*method
; /* The method :-) */
1640 extern SSL3_ENC_METHOD ssl3_undef_enc_method
;
1642 __owur
const SSL_METHOD
*ssl_bad_method(int ver
);
1643 __owur
const SSL_METHOD
*sslv3_method(void);
1644 __owur
const SSL_METHOD
*sslv3_server_method(void);
1645 __owur
const SSL_METHOD
*sslv3_client_method(void);
1646 __owur
const SSL_METHOD
*tlsv1_method(void);
1647 __owur
const SSL_METHOD
*tlsv1_server_method(void);
1648 __owur
const SSL_METHOD
*tlsv1_client_method(void);
1649 __owur
const SSL_METHOD
*tlsv1_1_method(void);
1650 __owur
const SSL_METHOD
*tlsv1_1_server_method(void);
1651 __owur
const SSL_METHOD
*tlsv1_1_client_method(void);
1652 __owur
const SSL_METHOD
*tlsv1_2_method(void);
1653 __owur
const SSL_METHOD
*tlsv1_2_server_method(void);
1654 __owur
const SSL_METHOD
*tlsv1_2_client_method(void);
1655 __owur
const SSL_METHOD
*dtlsv1_method(void);
1656 __owur
const SSL_METHOD
*dtlsv1_server_method(void);
1657 __owur
const SSL_METHOD
*dtlsv1_client_method(void);
1658 __owur
const SSL_METHOD
*dtls_bad_ver_client_method(void);
1659 __owur
const SSL_METHOD
*dtlsv1_2_method(void);
1660 __owur
const SSL_METHOD
*dtlsv1_2_server_method(void);
1661 __owur
const SSL_METHOD
*dtlsv1_2_client_method(void);
1663 extern const SSL3_ENC_METHOD TLSv1_enc_data
;
1664 extern const SSL3_ENC_METHOD TLSv1_1_enc_data
;
1665 extern const SSL3_ENC_METHOD TLSv1_2_enc_data
;
1666 extern const SSL3_ENC_METHOD SSLv3_enc_data
;
1667 extern const SSL3_ENC_METHOD DTLSv1_enc_data
;
1668 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data
;
1671 * Flags for SSL methods
1673 #define SSL_METHOD_NO_FIPS (1U<<0)
1674 #define SSL_METHOD_NO_SUITEB (1U<<1)
1676 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
1677 s_connect, enc_data) \
1678 const SSL_METHOD *func_name(void) \
1680 static const SSL_METHOD func_name##_data= { \
1694 ssl3_renegotiate_check, \
1697 ssl3_dispatch_alert, \
1700 ssl3_get_cipher_by_char, \
1701 ssl3_put_cipher_by_char, \
1705 tls1_default_timeout, \
1707 ssl_undefined_void_function, \
1708 ssl3_callback_ctrl, \
1709 ssl3_ctx_callback_ctrl, \
1711 return &func_name##_data; \
1714 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
1715 const SSL_METHOD *func_name(void) \
1717 static const SSL_METHOD func_name##_data= { \
1719 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1731 ssl3_renegotiate_check, \
1734 ssl3_dispatch_alert, \
1737 ssl3_get_cipher_by_char, \
1738 ssl3_put_cipher_by_char, \
1742 ssl3_default_timeout, \
1744 ssl_undefined_void_function, \
1745 ssl3_callback_ctrl, \
1746 ssl3_ctx_callback_ctrl, \
1748 return &func_name##_data; \
1751 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
1752 s_connect, enc_data) \
1753 const SSL_METHOD *func_name(void) \
1755 static const SSL_METHOD func_name##_data= { \
1769 ssl3_renegotiate_check, \
1771 dtls1_write_app_data_bytes, \
1772 dtls1_dispatch_alert, \
1775 ssl3_get_cipher_by_char, \
1776 ssl3_put_cipher_by_char, \
1780 dtls1_default_timeout, \
1782 ssl_undefined_void_function, \
1783 ssl3_callback_ctrl, \
1784 ssl3_ctx_callback_ctrl, \
1786 return &func_name##_data; \
1789 struct openssl_ssl_test_functions
{
1790 int (*p_ssl_init_wbio_buffer
) (SSL
*s
);
1791 int (*p_ssl3_setup_buffers
) (SSL
*s
);
1792 # ifndef OPENSSL_NO_HEARTBEATS
1793 int (*p_dtls1_process_heartbeat
) (SSL
*s
,
1794 unsigned char *p
, unsigned int length
);
1798 const char *ssl_protocol_to_string(int version
);
1800 # ifndef OPENSSL_UNIT_TEST
1802 void ssl_clear_cipher_ctx(SSL
*s
);
1803 int ssl_clear_bad_session(SSL
*s
);
1804 __owur CERT
*ssl_cert_new(void);
1805 __owur CERT
*ssl_cert_dup(CERT
*cert
);
1806 void ssl_cert_clear_certs(CERT
*c
);
1807 void ssl_cert_free(CERT
*c
);
1808 __owur
int ssl_get_new_session(SSL
*s
, int session
);
1809 __owur
int ssl_get_prev_session(SSL
*s
, const PACKET
*ext
,
1810 const PACKET
*session_id
);
1811 __owur SSL_SESSION
*ssl_session_dup(SSL_SESSION
*src
, int ticket
);
1812 __owur
int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
);
1813 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
1814 __owur
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1815 const SSL_CIPHER
*const *bp
);
1816 __owur
STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(const SSL_METHOD
*meth
,
1817 STACK_OF(SSL_CIPHER
) **pref
,
1818 STACK_OF(SSL_CIPHER
) **sorted
,
1819 const char *rule_str
, CERT
*c
);
1820 void ssl_update_cache(SSL
*s
, int mode
);
1821 __owur
int ssl_cipher_get_evp(const SSL_SESSION
*s
, const EVP_CIPHER
**enc
,
1822 const EVP_MD
**md
, int *mac_pkey_type
,
1823 int *mac_secret_size
, SSL_COMP
**comp
, int use_etm
);
1824 __owur
int ssl_cipher_get_cert_index(const SSL_CIPHER
*c
);
1825 __owur
const SSL_CIPHER
*ssl_get_cipher_by_char(SSL
*ssl
, const unsigned char *ptr
);
1826 __owur
int ssl_cert_set0_chain(SSL
*s
, SSL_CTX
*ctx
, STACK_OF(X509
) *chain
);
1827 __owur
int ssl_cert_set1_chain(SSL
*s
, SSL_CTX
*ctx
, STACK_OF(X509
) *chain
);
1828 __owur
int ssl_cert_add0_chain_cert(SSL
*s
, SSL_CTX
*ctx
, X509
*x
);
1829 __owur
int ssl_cert_add1_chain_cert(SSL
*s
, SSL_CTX
*ctx
, X509
*x
);
1830 __owur
int ssl_cert_select_current(CERT
*c
, X509
*x
);
1831 __owur
int ssl_cert_set_current(CERT
*c
, long arg
);
1832 __owur X509
*ssl_cert_get0_next_certificate(CERT
*c
, int first
);
1833 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
1836 __owur
int ssl_verify_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
);
1837 __owur
int ssl_add_cert_chain(SSL
*s
, CERT_PKEY
*cpk
, unsigned long *l
);
1838 __owur
int ssl_build_cert_chain(SSL
*s
, SSL_CTX
*ctx
, int flags
);
1839 __owur
int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
, int ref
);
1841 __owur
int ssl_security(const SSL
*s
, int op
, int bits
, int nid
, void *other
);
1842 __owur
int ssl_ctx_security(const SSL_CTX
*ctx
, int op
, int bits
, int nid
, void *other
);
1844 int ssl_undefined_function(SSL
*s
);
1845 __owur
int ssl_undefined_void_function(void);
1846 __owur
int ssl_undefined_const_function(const SSL
*s
);
1847 __owur CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
);
1848 __owur
int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
1849 size_t *serverinfo_length
);
1850 __owur EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*c
, const EVP_MD
**pmd
);
1851 __owur
int ssl_cert_type(X509
*x
, EVP_PKEY
*pkey
);
1852 void ssl_set_masks(SSL
*s
);
1853 __owur
STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
);
1854 __owur
int ssl_verify_alarm_type(long type
);
1855 void ssl_sort_cipher_list(void);
1856 void ssl_load_ciphers(void);
1857 __owur
int ssl_fill_hello_random(SSL
*s
, int server
, unsigned char *field
, int len
);
1858 __owur
int ssl_generate_master_secret(SSL
*s
, unsigned char *pms
, size_t pmslen
,
1860 __owur EVP_PKEY
*ssl_generate_pkey(EVP_PKEY
*pm
, int nid
);
1861 __owur
int ssl_derive(SSL
*s
, EVP_PKEY
*privkey
, EVP_PKEY
*pubkey
);
1862 __owur EVP_PKEY
*ssl_dh_to_pkey(DH
*dh
);
1864 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_char(const unsigned char *p
);
1865 __owur
int ssl3_put_cipher_by_char(const SSL_CIPHER
*c
, unsigned char *p
);
1866 int ssl3_init_finished_mac(SSL
*s
);
1867 __owur
int ssl3_setup_key_block(SSL
*s
);
1868 __owur
int ssl3_change_cipher_state(SSL
*s
, int which
);
1869 void ssl3_cleanup_key_block(SSL
*s
);
1870 __owur
int ssl3_do_write(SSL
*s
, int type
);
1871 int ssl3_send_alert(SSL
*s
, int level
, int desc
);
1872 __owur
int ssl3_generate_master_secret(SSL
*s
, unsigned char *out
,
1873 unsigned char *p
, int len
);
1874 __owur
int ssl3_get_req_cert_type(SSL
*s
, unsigned char *p
);
1875 __owur
int ssl3_num_ciphers(void);
1876 __owur
const SSL_CIPHER
*ssl3_get_cipher(unsigned int u
);
1877 int ssl3_renegotiate(SSL
*ssl
);
1878 int ssl3_renegotiate_check(SSL
*ssl
);
1879 __owur
int ssl3_dispatch_alert(SSL
*s
);
1880 __owur
int ssl3_final_finish_mac(SSL
*s
, const char *sender
, int slen
,
1882 __owur
int ssl3_finish_mac(SSL
*s
, const unsigned char *buf
, int len
);
1883 void ssl3_free_digest_list(SSL
*s
);
1884 __owur
unsigned long ssl3_output_cert_chain(SSL
*s
, CERT_PKEY
*cpk
);
1885 __owur
const SSL_CIPHER
*ssl3_choose_cipher(SSL
*ssl
,
1886 STACK_OF(SSL_CIPHER
) *clnt
,
1887 STACK_OF(SSL_CIPHER
) *srvr
);
1888 __owur
int ssl3_digest_cached_records(SSL
*s
, int keep
);
1889 __owur
int ssl3_new(SSL
*s
);
1890 void ssl3_free(SSL
*s
);
1891 __owur
int ssl3_read(SSL
*s
, void *buf
, int len
);
1892 __owur
int ssl3_peek(SSL
*s
, void *buf
, int len
);
1893 __owur
int ssl3_write(SSL
*s
, const void *buf
, int len
);
1894 __owur
int ssl3_shutdown(SSL
*s
);
1895 void ssl3_clear(SSL
*s
);
1896 __owur
long ssl3_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
1897 __owur
long ssl3_ctx_ctrl(SSL_CTX
*s
, int cmd
, long larg
, void *parg
);
1898 __owur
long ssl3_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
1899 __owur
long ssl3_ctx_callback_ctrl(SSL_CTX
*s
, int cmd
, void (*fp
) (void));
1901 __owur
int ssl3_do_change_cipher_spec(SSL
*ssl
);
1902 __owur
long ssl3_default_timeout(void);
1904 __owur
int ssl3_set_handshake_header(SSL
*s
, int htype
, unsigned long len
);
1905 __owur
int ssl3_handshake_write(SSL
*s
);
1907 __owur
int ssl_allow_compression(SSL
*s
);
1909 __owur
int ssl_version_supported(const SSL
*s
, int version
);
1911 __owur
int ssl_set_client_hello_version(SSL
*s
);
1912 __owur
int ssl_check_version_downgrade(SSL
*s
);
1913 __owur
int ssl_set_version_bound(int method_version
, int version
, int *bound
);
1914 __owur
int ssl_choose_server_version(SSL
*s
);
1915 __owur
int ssl_choose_client_version(SSL
*s
, int version
);
1916 int ssl_get_client_min_max_version(const SSL
*s
, int *min_version
, int *max_version
);
1918 __owur
long tls1_default_timeout(void);
1919 __owur
int dtls1_do_write(SSL
*s
, int type
);
1920 void dtls1_set_message_header(SSL
*s
,
1923 unsigned long frag_off
,
1924 unsigned long frag_len
);
1926 __owur
int dtls1_write_app_data_bytes(SSL
*s
, int type
, const void *buf
, int len
);
1928 __owur
int dtls1_read_failed(SSL
*s
, int code
);
1929 __owur
int dtls1_buffer_message(SSL
*s
, int ccs
);
1930 __owur
int dtls1_retransmit_message(SSL
*s
, unsigned short seq
, int *found
);
1931 __owur
int dtls1_get_queue_priority(unsigned short seq
, int is_ccs
);
1932 int dtls1_retransmit_buffered_messages(SSL
*s
);
1933 void dtls1_clear_record_buffer(SSL
*s
);
1934 void dtls1_get_message_header(unsigned char *data
,
1935 struct hm_header_st
*msg_hdr
);
1936 __owur
long dtls1_default_timeout(void);
1937 __owur
struct timeval
*dtls1_get_timeout(SSL
*s
, struct timeval
*timeleft
);
1938 __owur
int dtls1_check_timeout_num(SSL
*s
);
1939 __owur
int dtls1_handle_timeout(SSL
*s
);
1940 void dtls1_start_timer(SSL
*s
);
1941 void dtls1_stop_timer(SSL
*s
);
1942 __owur
int dtls1_is_timer_expired(SSL
*s
);
1943 void dtls1_double_timeout(SSL
*s
);
1944 __owur
unsigned int dtls_raw_hello_verify_request(unsigned char *buf
,
1945 unsigned char *cookie
,
1946 unsigned char cookie_len
);
1947 __owur
int dtls1_send_newsession_ticket(SSL
*s
);
1948 __owur
unsigned int dtls1_min_mtu(SSL
*s
);
1949 void dtls1_hm_fragment_free(hm_fragment
*frag
);
1950 __owur
int dtls1_query_mtu(SSL
*s
);
1952 __owur
int tls1_new(SSL
*s
);
1953 void tls1_free(SSL
*s
);
1954 void tls1_clear(SSL
*s
);
1955 long tls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
1956 long tls1_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
1958 __owur
int dtls1_new(SSL
*s
);
1959 void dtls1_free(SSL
*s
);
1960 void dtls1_clear(SSL
*s
);
1961 long dtls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
1962 __owur
int dtls1_shutdown(SSL
*s
);
1964 __owur
int dtls1_dispatch_alert(SSL
*s
);
1966 __owur
int ssl_init_wbio_buffer(SSL
*s
);
1967 void ssl_free_wbio_buffer(SSL
*s
);
1969 __owur
int tls1_change_cipher_state(SSL
*s
, int which
);
1970 __owur
int tls1_setup_key_block(SSL
*s
);
1971 __owur
int tls1_final_finish_mac(SSL
*s
,
1972 const char *str
, int slen
, unsigned char *p
);
1973 __owur
int tls1_generate_master_secret(SSL
*s
, unsigned char *out
,
1974 unsigned char *p
, int len
);
1975 __owur
int tls1_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1976 const char *label
, size_t llen
,
1977 const unsigned char *p
, size_t plen
,
1979 __owur
int tls1_alert_code(int code
);
1980 __owur
int ssl3_alert_code(int code
);
1981 __owur
int ssl_ok(SSL
*s
);
1983 # ifndef OPENSSL_NO_EC
1984 __owur
int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
);
1987 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
);
1989 # ifndef OPENSSL_NO_EC
1990 __owur
int tls1_ec_curve_id2nid(int curve_id
);
1991 __owur
int tls1_ec_nid2curve_id(int nid
);
1992 __owur
int tls1_check_curve(SSL
*s
, const unsigned char *p
, size_t len
);
1993 __owur
int tls1_shared_curve(SSL
*s
, int nmatch
);
1994 __owur
int tls1_set_curves(unsigned char **pext
, size_t *pextlen
,
1995 int *curves
, size_t ncurves
);
1996 __owur
int tls1_set_curves_list(unsigned char **pext
, size_t *pextlen
,
1998 __owur
int tls1_check_ec_tmp_key(SSL
*s
, unsigned long id
);
1999 # endif /* OPENSSL_NO_EC */
2001 __owur
int tls1_shared_list(SSL
*s
,
2002 const unsigned char *l1
, size_t l1len
,
2003 const unsigned char *l2
, size_t l2len
, int nmatch
);
2004 __owur
unsigned char *ssl_add_clienthello_tlsext(SSL
*s
, unsigned char *buf
,
2005 unsigned char *limit
, int *al
);
2006 __owur
unsigned char *ssl_add_serverhello_tlsext(SSL
*s
, unsigned char *buf
,
2007 unsigned char *limit
, int *al
);
2008 __owur
int ssl_parse_clienthello_tlsext(SSL
*s
, PACKET
*pkt
);
2009 void ssl_set_default_md(SSL
*s
);
2010 __owur
int tls1_set_server_sigalgs(SSL
*s
);
2011 __owur
int ssl_check_clienthello_tlsext_late(SSL
*s
, int *al
);
2012 __owur
int ssl_parse_serverhello_tlsext(SSL
*s
, PACKET
*pkt
);
2013 __owur
int ssl_prepare_clienthello_tlsext(SSL
*s
);
2014 __owur
int ssl_prepare_serverhello_tlsext(SSL
*s
);
2016 # ifndef OPENSSL_NO_HEARTBEATS
2017 __owur
int dtls1_heartbeat(SSL
*s
);
2018 __owur
int dtls1_process_heartbeat(SSL
*s
, unsigned char *p
, unsigned int length
);
2021 __owur
int tls_check_serverhello_tlsext_early(SSL
*s
, const PACKET
*ext
,
2022 const PACKET
*session_id
,
2025 __owur
int tls12_get_sigandhash(unsigned char *p
, const EVP_PKEY
*pk
,
2027 __owur
int tls12_get_sigid(const EVP_PKEY
*pk
);
2028 __owur
const EVP_MD
*tls12_get_hash(unsigned char hash_alg
);
2029 void ssl_set_sig_mask(uint32_t *pmask_a
, SSL
*s
, int op
);
2031 __owur
int tls1_set_sigalgs_list(CERT
*c
, const char *str
, int client
);
2032 __owur
int tls1_set_sigalgs(CERT
*c
, const int *salg
, size_t salglen
, int client
);
2033 int tls1_check_chain(SSL
*s
, X509
*x
, EVP_PKEY
*pk
, STACK_OF(X509
) *chain
,
2035 void tls1_set_cert_validity(SSL
*s
);
2037 #ifndef OPENSSL_NO_CT
2038 __owur
int ssl_validate_ct(SSL
*s
);
2041 # ifndef OPENSSL_NO_DH
2042 __owur DH
*ssl_get_auto_dh(SSL
*s
);
2045 __owur
int ssl_security_cert(SSL
*s
, SSL_CTX
*ctx
, X509
*x
, int vfy
, int is_ee
);
2046 __owur
int ssl_security_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
, X509
*ex
, int vfy
);
2048 __owur EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
);
2049 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
);
2050 __owur
int ssl_add_serverhello_renegotiate_ext(SSL
*s
, unsigned char *p
, int *len
,
2052 __owur
int ssl_parse_serverhello_renegotiate_ext(SSL
*s
, PACKET
*pkt
,
2054 __owur
int ssl_add_clienthello_renegotiate_ext(SSL
*s
, unsigned char *p
, int *len
,
2056 __owur
int ssl_parse_clienthello_renegotiate_ext(SSL
*s
, PACKET
*pkt
, int *al
);
2057 __owur
long ssl_get_algorithm2(SSL
*s
);
2058 __owur
size_t tls12_copy_sigalgs(SSL
*s
, unsigned char *out
,
2059 const unsigned char *psig
, size_t psiglen
);
2060 __owur
int tls1_save_sigalgs(SSL
*s
, const unsigned char *data
, int dsize
);
2061 __owur
int tls1_process_sigalgs(SSL
*s
);
2062 __owur
size_t tls12_get_psigalgs(SSL
*s
, const unsigned char **psigs
);
2063 __owur
int tls12_check_peer_sigalg(const EVP_MD
**pmd
, SSL
*s
,
2064 const unsigned char *sig
, EVP_PKEY
*pkey
);
2065 void ssl_set_client_disabled(SSL
*s
);
2066 __owur
int ssl_cipher_disabled(SSL
*s
, const SSL_CIPHER
*c
, int op
);
2068 __owur
int ssl_add_clienthello_use_srtp_ext(SSL
*s
, unsigned char *p
, int *len
,
2070 __owur
int ssl_parse_clienthello_use_srtp_ext(SSL
*s
, PACKET
*pkt
, int *al
);
2071 __owur
int ssl_add_serverhello_use_srtp_ext(SSL
*s
, unsigned char *p
, int *len
,
2073 __owur
int ssl_parse_serverhello_use_srtp_ext(SSL
*s
, PACKET
*pkt
, int *al
);
2075 __owur
int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
);
2076 __owur
const EVP_MD
*ssl_md(int idx
);
2077 __owur
const EVP_MD
*ssl_handshake_md(SSL
*s
);
2078 __owur
const EVP_MD
*ssl_prf_md(SSL
*s
);
2081 __owur
char ssl3_cbc_record_digest_supported(const EVP_MD_CTX
*ctx
);
2082 __owur
int ssl3_cbc_digest_record(const EVP_MD_CTX
*ctx
,
2083 unsigned char *md_out
,
2084 size_t *md_out_size
,
2085 const unsigned char header
[13],
2086 const unsigned char *data
,
2087 size_t data_plus_mac_size
,
2088 size_t data_plus_mac_plus_padding_size
,
2089 const unsigned char *mac_secret
,
2090 unsigned mac_secret_length
, char is_sslv3
);
2092 __owur
int tls_fips_digest_extra(const EVP_CIPHER_CTX
*cipher_ctx
,
2093 EVP_MD_CTX
*mac_ctx
, const unsigned char *data
,
2094 size_t data_len
, size_t orig_len
);
2096 __owur
int srp_generate_server_master_secret(SSL
*s
);
2097 __owur
int srp_generate_client_master_secret(SSL
*s
);
2098 __owur
int srp_verify_server_param(SSL
*s
, int *al
);
2102 void custom_ext_init(custom_ext_methods
*meths
);
2104 __owur
int custom_ext_parse(SSL
*s
, int server
,
2105 unsigned int ext_type
,
2106 const unsigned char *ext_data
, size_t ext_size
, int *al
);
2107 __owur
int custom_ext_add(SSL
*s
, int server
,
2108 unsigned char **pret
, unsigned char *limit
, int *al
);
2110 __owur
int custom_exts_copy(custom_ext_methods
*dst
, const custom_ext_methods
*src
);
2111 void custom_exts_free(custom_ext_methods
*exts
);
2113 void ssl_comp_free_compression_methods_int(void);
2117 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2118 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2119 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat