2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 * Copyright 2005 Nokia. All rights reserved.
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
12 #ifndef OSSL_SSL_LOCAL_H
13 # define OSSL_SSL_LOCAL_H
15 # include "internal/e_os.h" /* struct timeval for DTLS */
19 # include "internal/common.h" /* for HAS_PREFIX */
21 # include <openssl/buffer.h>
22 # include <openssl/comp.h>
23 # include <openssl/bio.h>
24 # include <openssl/dsa.h>
25 # include <openssl/err.h>
26 # include <openssl/ssl.h>
27 # include <openssl/async.h>
28 # include <openssl/symhacks.h>
29 # include <openssl/ct.h>
30 # include "record/record.h"
31 # include "record/recordmethod.h"
32 # include "statem/statem.h"
33 # include "internal/packet.h"
34 # include "internal/dane.h"
35 # include "internal/refcount.h"
36 # include "internal/tsan_assist.h"
37 # include "internal/bio.h"
38 # include "internal/ktls.h"
39 # include "internal/time.h"
41 # ifdef OPENSSL_BUILD_SHLIBSSL
42 # undef OPENSSL_EXTERN
43 # define OPENSSL_EXTERN OPENSSL_EXPORT
46 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
47 l|=(((unsigned long)(*((c)++)))<< 8), \
48 l|=(((unsigned long)(*((c)++)))<<16), \
49 l|=(((unsigned long)(*((c)++)))<<24))
51 /* NOTE - c is not incremented as per c2l */
52 # define c2ln(c,l1,l2,n) { \
56 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
57 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
58 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
59 case 5: l2|=((unsigned long)(*(--(c)))); \
60 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
61 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
62 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
63 case 1: l1|=((unsigned long)(*(--(c)))); \
67 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
68 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
69 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
70 *((c)++)=(unsigned char)(((l)>>24)&0xff))
72 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
73 l|=((unsigned long)(*((c)++)))<<16, \
74 l|=((unsigned long)(*((c)++)))<< 8, \
75 l|=((unsigned long)(*((c)++))))
77 # define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \
78 l|=((uint64_t)(*((c)++)))<<48, \
79 l|=((uint64_t)(*((c)++)))<<40, \
80 l|=((uint64_t)(*((c)++)))<<32, \
81 l|=((uint64_t)(*((c)++)))<<24, \
82 l|=((uint64_t)(*((c)++)))<<16, \
83 l|=((uint64_t)(*((c)++)))<< 8, \
84 l|=((uint64_t)(*((c)++))))
87 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
88 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
89 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
90 *((c)++)=(unsigned char)(((l) )&0xff))
92 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
93 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
94 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
95 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
96 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
97 *((c)++)=(unsigned char)(((l) )&0xff))
99 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
100 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
101 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
102 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
103 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
104 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
105 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
106 *((c)++)=(unsigned char)(((l) )&0xff))
108 /* NOTE - c is not incremented as per l2c */
109 # define l2cn(l1,l2,c,n) { \
112 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
113 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
114 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
115 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
116 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
117 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
118 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
119 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
123 # define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \
124 (((unsigned int)((c)[1])) )),(c)+=2)
125 # define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \
126 (c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2)
128 # define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \
129 (((unsigned long)((c)[1]))<< 8)| \
130 (((unsigned long)((c)[2])) )),(c)+=3)
132 # define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \
133 (c)[1]=(unsigned char)(((l)>> 8)&0xff), \
134 (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3)
136 # define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION
137 # define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION
140 * DTLS version numbers are strange because they're inverted. Except for
141 * DTLS1_BAD_VER, which should be considered "lower" than the rest.
143 # define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
144 # define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
145 # define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
146 # define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
147 # define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
149 # define SSL_AD_NO_ALERT -1
152 * Define the Bitmasks for SSL_CIPHER.algorithms.
153 * This bits are used packed as dense as possible. If new methods/ciphers
154 * etc will be added, the bits a likely to change, so this information
155 * is for internal library use only, even though SSL_CIPHER.algorithms
156 * can be publicly accessed.
157 * Use the according functions for cipher management instead.
159 * The bit mask handling in the selection and sorting scheme in
160 * ssl_create_cipher_list() has only limited capabilities, reflecting
161 * that the different entities within are mutually exclusive:
162 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
165 /* Bits for algorithm_mkey (key exchange algorithm) */
166 /* RSA key exchange */
167 # define SSL_kRSA 0x00000001U
168 /* tmp DH key no DH cert */
169 # define SSL_kDHE 0x00000002U
171 # define SSL_kEDH SSL_kDHE
173 # define SSL_kECDHE 0x00000004U
175 # define SSL_kEECDH SSL_kECDHE
177 # define SSL_kPSK 0x00000008U
178 /* GOST key exchange */
179 # define SSL_kGOST 0x00000010U
181 # define SSL_kSRP 0x00000020U
183 # define SSL_kRSAPSK 0x00000040U
184 # define SSL_kECDHEPSK 0x00000080U
185 # define SSL_kDHEPSK 0x00000100U
186 /* GOST KDF key exchange, draft-smyshlyaev-tls12-gost-suites */
187 # define SSL_kGOST18 0x00000200U
191 # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
193 /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
194 # define SSL_kANY 0x00000000U
196 /* Bits for algorithm_auth (server authentication) */
198 # define SSL_aRSA 0x00000001U
200 # define SSL_aDSS 0x00000002U
201 /* no auth (i.e. use ADH or AECDH) */
202 # define SSL_aNULL 0x00000004U
204 # define SSL_aECDSA 0x00000008U
206 # define SSL_aPSK 0x00000010U
207 /* GOST R 34.10-2001 signature auth */
208 # define SSL_aGOST01 0x00000020U
210 # define SSL_aSRP 0x00000040U
211 /* GOST R 34.10-2012 signature auth */
212 # define SSL_aGOST12 0x00000080U
213 /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
214 # define SSL_aANY 0x00000000U
215 /* All bits requiring a certificate */
217 (SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12)
219 /* Bits for algorithm_enc (symmetric encryption) */
220 # define SSL_DES 0x00000001U
221 # define SSL_3DES 0x00000002U
222 # define SSL_RC4 0x00000004U
223 # define SSL_RC2 0x00000008U
224 # define SSL_IDEA 0x00000010U
225 # define SSL_eNULL 0x00000020U
226 # define SSL_AES128 0x00000040U
227 # define SSL_AES256 0x00000080U
228 # define SSL_CAMELLIA128 0x00000100U
229 # define SSL_CAMELLIA256 0x00000200U
230 # define SSL_eGOST2814789CNT 0x00000400U
231 # define SSL_SEED 0x00000800U
232 # define SSL_AES128GCM 0x00001000U
233 # define SSL_AES256GCM 0x00002000U
234 # define SSL_AES128CCM 0x00004000U
235 # define SSL_AES256CCM 0x00008000U
236 # define SSL_AES128CCM8 0x00010000U
237 # define SSL_AES256CCM8 0x00020000U
238 # define SSL_eGOST2814789CNT12 0x00040000U
239 # define SSL_CHACHA20POLY1305 0x00080000U
240 # define SSL_ARIA128GCM 0x00100000U
241 # define SSL_ARIA256GCM 0x00200000U
242 # define SSL_MAGMA 0x00400000U
243 # define SSL_KUZNYECHIK 0x00800000U
245 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
246 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
247 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
248 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
249 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
250 # define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM)
251 # define SSL_ARIA (SSL_ARIAGCM)
252 # define SSL_CBC (SSL_DES | SSL_3DES | SSL_RC2 | SSL_IDEA \
253 | SSL_AES128 | SSL_AES256 | SSL_CAMELLIA128 \
254 | SSL_CAMELLIA256 | SSL_SEED)
256 /* Bits for algorithm_mac (symmetric authentication) */
258 # define SSL_MD5 0x00000001U
259 # define SSL_SHA1 0x00000002U
260 # define SSL_GOST94 0x00000004U
261 # define SSL_GOST89MAC 0x00000008U
262 # define SSL_SHA256 0x00000010U
263 # define SSL_SHA384 0x00000020U
264 /* Not a real MAC, just an indication it is part of cipher */
265 # define SSL_AEAD 0x00000040U
266 # define SSL_GOST12_256 0x00000080U
267 # define SSL_GOST89MAC12 0x00000100U
268 # define SSL_GOST12_512 0x00000200U
269 # define SSL_MAGMAOMAC 0x00000400U
270 # define SSL_KUZNYECHIKOMAC 0x00000800U
273 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
274 * sure to update this constant too
277 # define SSL_MD_MD5_IDX 0
278 # define SSL_MD_SHA1_IDX 1
279 # define SSL_MD_GOST94_IDX 2
280 # define SSL_MD_GOST89MAC_IDX 3
281 # define SSL_MD_SHA256_IDX 4
282 # define SSL_MD_SHA384_IDX 5
283 # define SSL_MD_GOST12_256_IDX 6
284 # define SSL_MD_GOST89MAC12_IDX 7
285 # define SSL_MD_GOST12_512_IDX 8
286 # define SSL_MD_MD5_SHA1_IDX 9
287 # define SSL_MD_SHA224_IDX 10
288 # define SSL_MD_SHA512_IDX 11
289 # define SSL_MD_MAGMAOMAC_IDX 12
290 # define SSL_MD_KUZNYECHIKOMAC_IDX 13
291 # define SSL_MAX_DIGEST 14
293 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
295 /* Bits for algorithm2 (handshake digests and other extra flags) */
297 /* Bits 0-7 are handshake MAC */
298 # define SSL_HANDSHAKE_MAC_MASK 0xFF
299 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
300 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
301 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
302 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
303 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
304 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
305 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
307 /* Bits 8-15 bits are PRF */
308 # define TLS1_PRF_DGST_SHIFT 8
309 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
310 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
311 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
312 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
313 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
314 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
315 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
318 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
319 * goes into algorithm2)
321 # define TLS1_STREAM_MAC 0x10000
323 * TLSTREE cipher/mac key derivation from draft-smyshlyaev-tls12-gost-suites
324 * (currently this also goes into algorithm2)
326 # define TLS1_TLSTREE 0x20000
328 # define SSL_STRONG_MASK 0x0000001FU
329 # define SSL_DEFAULT_MASK 0X00000020U
331 # define SSL_STRONG_NONE 0x00000001U
332 # define SSL_LOW 0x00000002U
333 # define SSL_MEDIUM 0x00000004U
334 # define SSL_HIGH 0x00000008U
335 # define SSL_FIPS 0x00000010U
336 # define SSL_NOT_DEFAULT 0x00000020U
338 /* we have used 0000003f - 26 bits left to go */
340 /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
341 # define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
343 /* Check if an SSL structure is using DTLS */
344 # define SSL_CONNECTION_IS_DTLS(s) \
345 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
347 /* Check if we are using TLSv1.3 */
348 # define SSL_CONNECTION_IS_TLS13(s) (!SSL_CONNECTION_IS_DTLS(s) \
349 && SSL_CONNECTION_GET_SSL(s)->method->version >= TLS1_3_VERSION \
350 && SSL_CONNECTION_GET_SSL(s)->method->version != TLS_ANY_VERSION)
352 # define SSL_CONNECTION_TREAT_AS_TLS13(s) \
353 (SSL_CONNECTION_IS_TLS13(s) \
354 || (s)->early_data_state == SSL_EARLY_DATA_CONNECTING \
355 || (s)->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY \
356 || (s)->early_data_state == SSL_EARLY_DATA_WRITING \
357 || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \
358 || (s)->hello_retry_request == SSL_HRR_PENDING)
360 # define SSL_IS_FIRST_HANDSHAKE(s) ((s)->s3.tmp.finish_md_len == 0 \
361 || (s)->s3.tmp.peer_finish_md_len == 0)
363 /* See if we need explicit IV */
364 # define SSL_USE_EXPLICIT_IV(s) \
365 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
367 * See if we use signature algorithms extension and signature algorithm
370 # define SSL_USE_SIGALGS(s) \
371 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
373 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
374 * apply to others in future.
376 # define SSL_USE_TLS1_2_CIPHERS(s) \
377 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
379 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
380 * flags because it may not be set to correct version yet.
382 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
383 ((!SSL_CONNECTION_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
384 (SSL_CONNECTION_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
386 * Determine if a client should send signature algorithms extension:
387 * as with TLS1.2 cipher we can't rely on method flags.
389 # define SSL_CLIENT_USE_SIGALGS(s) \
390 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
392 # define IS_MAX_FRAGMENT_LENGTH_EXT_VALID(value) \
393 (((value) >= TLSEXT_max_fragment_length_512) && \
394 ((value) <= TLSEXT_max_fragment_length_4096))
395 # define USE_MAX_FRAGMENT_LENGTH_EXT(session) \
396 IS_MAX_FRAGMENT_LENGTH_EXT_VALID(session->ext.max_fragment_len_mode)
397 # define GET_MAX_FRAGMENT_LENGTH(session) \
398 (512U << (session->ext.max_fragment_len_mode - 1))
400 # define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ)
401 # define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE)
403 /* Mostly for SSLv3 */
404 # define SSL_PKEY_RSA 0
405 # define SSL_PKEY_RSA_PSS_SIGN 1
406 # define SSL_PKEY_DSA_SIGN 2
407 # define SSL_PKEY_ECC 3
408 # define SSL_PKEY_GOST01 4
409 # define SSL_PKEY_GOST12_256 5
410 # define SSL_PKEY_GOST12_512 6
411 # define SSL_PKEY_ED25519 7
412 # define SSL_PKEY_ED448 8
413 # define SSL_PKEY_NUM 9
415 # define SSL_ENC_DES_IDX 0
416 # define SSL_ENC_3DES_IDX 1
417 # define SSL_ENC_RC4_IDX 2
418 # define SSL_ENC_RC2_IDX 3
419 # define SSL_ENC_IDEA_IDX 4
420 # define SSL_ENC_NULL_IDX 5
421 # define SSL_ENC_AES128_IDX 6
422 # define SSL_ENC_AES256_IDX 7
423 # define SSL_ENC_CAMELLIA128_IDX 8
424 # define SSL_ENC_CAMELLIA256_IDX 9
425 # define SSL_ENC_GOST89_IDX 10
426 # define SSL_ENC_SEED_IDX 11
427 # define SSL_ENC_AES128GCM_IDX 12
428 # define SSL_ENC_AES256GCM_IDX 13
429 # define SSL_ENC_AES128CCM_IDX 14
430 # define SSL_ENC_AES256CCM_IDX 15
431 # define SSL_ENC_AES128CCM8_IDX 16
432 # define SSL_ENC_AES256CCM8_IDX 17
433 # define SSL_ENC_GOST8912_IDX 18
434 # define SSL_ENC_CHACHA_IDX 19
435 # define SSL_ENC_ARIA128GCM_IDX 20
436 # define SSL_ENC_ARIA256GCM_IDX 21
437 # define SSL_ENC_MAGMA_IDX 22
438 # define SSL_ENC_KUZNYECHIK_IDX 23
439 # define SSL_ENC_NUM_IDX 24
442 * SSL_kRSA <- RSA_ENC
443 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
444 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
445 * SSL_aRSA <- RSA_ENC | RSA_SIGN
446 * SSL_aDSS <- DSA_SIGN
450 #define CERT_INVALID 0
451 #define CERT_PUBLIC_KEY 1
452 #define CERT_PRIVATE_KEY 2
455 /* Post-Handshake Authentication state */
458 SSL_PHA_EXT_SENT
, /* client-side only: extension sent */
459 SSL_PHA_EXT_RECEIVED
, /* server-side only: extension received */
460 SSL_PHA_REQUEST_PENDING
, /* server-side only: request pending */
461 SSL_PHA_REQUESTED
/* request received by client, or sent by server */
464 /* CipherSuite length. SSLv3 and all TLS versions. */
465 # define TLS_CIPHER_LEN 2
466 /* used to hold info on the particular ciphers used */
467 struct ssl_cipher_st
{
469 const char *name
; /* text name */
470 const char *stdname
; /* RFC name */
471 uint32_t id
; /* id, 4 bytes, first is version */
473 * changed in 1.0.0: these four used to be portions of a single value
476 uint32_t algorithm_mkey
; /* key exchange algorithm */
477 uint32_t algorithm_auth
; /* server authentication */
478 uint32_t algorithm_enc
; /* symmetric encryption */
479 uint32_t algorithm_mac
; /* symmetric authentication */
480 int min_tls
; /* minimum SSL/TLS protocol version */
481 int max_tls
; /* maximum SSL/TLS protocol version */
482 int min_dtls
; /* minimum DTLS protocol version */
483 int max_dtls
; /* maximum DTLS protocol version */
484 uint32_t algo_strength
; /* strength and export flags */
485 uint32_t algorithm2
; /* Extra flags */
486 int32_t strength_bits
; /* Number of bits really used */
487 uint32_t alg_bits
; /* Number of bits for algorithm */
490 /* Used to hold SSL/TLS functions */
491 struct ssl_method_st
{
495 SSL
*(*ssl_new
) (SSL_CTX
*ctx
);
496 void (*ssl_free
) (SSL
*s
);
497 int (*ssl_reset
) (SSL
*s
);
498 int (*ssl_init
) (SSL
*s
);
499 int (*ssl_clear
) (SSL
*s
);
500 void (*ssl_deinit
) (SSL
*s
);
501 int (*ssl_accept
) (SSL
*s
);
502 int (*ssl_connect
) (SSL
*s
);
503 int (*ssl_read
) (SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
504 int (*ssl_peek
) (SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
505 int (*ssl_write
) (SSL
*s
, const void *buf
, size_t len
, size_t *written
);
506 int (*ssl_shutdown
) (SSL
*s
);
507 int (*ssl_renegotiate
) (SSL
*s
);
508 int (*ssl_renegotiate_check
) (SSL
*s
, int);
509 int (*ssl_read_bytes
) (SSL
*s
, int type
, int *recvd_type
,
510 unsigned char *buf
, size_t len
, int peek
,
512 int (*ssl_write_bytes
) (SSL
*s
, int type
, const void *buf_
, size_t len
,
514 int (*ssl_dispatch_alert
) (SSL
*s
);
515 long (*ssl_ctrl
) (SSL
*s
, int cmd
, long larg
, void *parg
);
516 long (*ssl_ctx_ctrl
) (SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
);
517 const SSL_CIPHER
*(*get_cipher_by_char
) (const unsigned char *ptr
);
518 int (*put_cipher_by_char
) (const SSL_CIPHER
*cipher
, WPACKET
*pkt
,
520 size_t (*ssl_pending
) (const SSL
*s
);
521 int (*num_ciphers
) (void);
522 const SSL_CIPHER
*(*get_cipher
) (unsigned ncipher
);
523 OSSL_TIME (*get_timeout
) (void);
524 const struct ssl3_enc_method
*ssl3_enc
; /* Extra SSLv3/TLS stuff */
525 int (*ssl_version
) (void);
526 long (*ssl_callback_ctrl
) (SSL
*s
, int cb_id
, void (*fp
) (void));
527 long (*ssl_ctx_callback_ctrl
) (SSL_CTX
*s
, int cb_id
, void (*fp
) (void));
531 * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for
532 * consistency, even in the event of OPENSSL_NO_PSK being defined.
534 # define TLS13_MAX_RESUMPTION_PSK_LENGTH 512
537 * Lets make this into an ASN.1 type structure as follows
538 * SSL_SESSION_ID ::= SEQUENCE {
539 * version INTEGER, -- structure version number
540 * SSLversion INTEGER, -- SSL version number
541 * Cipher OCTET STRING, -- the 3 byte cipher ID
542 * Session_ID OCTET STRING, -- the Session ID
543 * Master_key OCTET STRING, -- the master key
544 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
545 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
546 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
547 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
548 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
549 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
550 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
551 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
552 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
553 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
554 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
555 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
556 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
557 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
559 * Look in ssl/ssl_asn1.c for more details
560 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
562 struct ssl_session_st
{
563 int ssl_version
; /* what ssl version session info is being kept
565 size_t master_key_length
;
567 /* TLSv1.3 early_secret used for external PSKs */
568 unsigned char early_secret
[EVP_MAX_MD_SIZE
];
570 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
573 unsigned char master_key
[TLS13_MAX_RESUMPTION_PSK_LENGTH
];
574 /* session_id - valid? */
575 size_t session_id_length
;
576 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
578 * this is used to determine whether the session is being reused in the
579 * appropriate context. It is up to the application to set this, via
582 size_t sid_ctx_length
;
583 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
584 # ifndef OPENSSL_NO_PSK
585 char *psk_identity_hint
;
589 * Used to indicate that session resumption is not allowed. Applications
590 * can also set this bit for a new session via not_resumable_session_cb
591 * to disable session caching and tickets.
594 /* This is the cert and type for the other end. */
596 /* Certificate chain peer sent. */
597 STACK_OF(X509
) *peer_chain
;
599 * when app_verify_callback accepts a session where the peer's
600 * certificate is not ok, we must remember the error for session reuse:
602 long verify_result
; /* only for servers */
603 CRYPTO_REF_COUNT references
;
606 OSSL_TIME calc_timeout
;
607 unsigned int compress_meth
; /* Need to lookup the method */
608 const SSL_CIPHER
*cipher
;
609 unsigned long cipher_id
; /* when ASN.1 loaded, this needs to be used to
610 * load the 'cipher' structure */
611 unsigned int kex_group
; /* TLS group from key exchange */
612 CRYPTO_EX_DATA ex_data
; /* application specific data */
614 * These are used to make removal of session-ids more efficient and to
615 * implement a maximum cache size.
617 struct ssl_session_st
*prev
, *next
;
622 unsigned char *tick
; /* Session ticket */
623 size_t ticklen
; /* Session ticket length */
624 /* Session lifetime hint in seconds */
625 unsigned long tick_lifetime_hint
;
626 uint32_t tick_age_add
;
627 /* Max number of bytes that can be sent as early data */
628 uint32_t max_early_data
;
629 /* The ALPN protocol selected for this session */
630 unsigned char *alpn_selected
;
631 size_t alpn_selected_len
;
633 * Maximum Fragment Length as per RFC 4366.
634 * If this value does not contain RFC 4366 allowed values (1-4) then
635 * either the Maximum Fragment Length Negotiation failed or was not
638 uint8_t max_fragment_len_mode
;
640 # ifndef OPENSSL_NO_SRP
643 unsigned char *ticket_appdata
;
644 size_t ticket_appdata_len
;
650 /* Extended master secret support */
651 # define SSL_SESS_FLAG_EXTMS 0x1
653 # ifndef OPENSSL_NO_SRP
655 typedef struct srp_ctx_st
{
656 /* param for all the callbacks */
658 /* set client Hello login callback */
659 int (*TLS_ext_srp_username_callback
) (SSL
*, int *, void *);
660 /* set SRP N/g param callback for verification */
661 int (*SRP_verify_param_callback
) (SSL
*, void *);
662 /* set SRP client passwd callback */
663 char *(*SRP_give_srp_client_pwd_callback
) (SSL
*, void *);
665 BIGNUM
*N
, *g
, *s
, *B
, *A
;
669 unsigned long srp_Mask
;
675 SSL_EARLY_DATA_NONE
= 0,
676 SSL_EARLY_DATA_CONNECT_RETRY
,
677 SSL_EARLY_DATA_CONNECTING
,
678 SSL_EARLY_DATA_WRITE_RETRY
,
679 SSL_EARLY_DATA_WRITING
,
680 SSL_EARLY_DATA_WRITE_FLUSH
,
681 SSL_EARLY_DATA_UNAUTH_WRITING
,
682 SSL_EARLY_DATA_FINISHED_WRITING
,
683 SSL_EARLY_DATA_ACCEPT_RETRY
,
684 SSL_EARLY_DATA_ACCEPTING
,
685 SSL_EARLY_DATA_READ_RETRY
,
686 SSL_EARLY_DATA_READING
,
687 SSL_EARLY_DATA_FINISHED_READING
688 } SSL_EARLY_DATA_STATE
;
691 * We check that the amount of unreadable early data doesn't exceed
692 * max_early_data. max_early_data is given in plaintext bytes. However if it is
693 * unreadable then we only know the number of ciphertext bytes. We also don't
694 * know how much the overhead should be because it depends on the ciphersuite.
695 * We make a small allowance. We assume 5 records of actual data plus the end
696 * of early data alert record. Each record has a tag and a content type byte.
697 * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
698 * content of the alert record either which is 2 bytes.
700 # define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
703 * The allowance we have between the client's calculated ticket age and our own.
704 * We allow for 10 seconds. If a ticket is presented and the
705 * client's age calculation is different by more than this than our own then we
706 * do not allow that ticket for early_data.
708 # define TICKET_AGE_ALLOWANCE ossl_seconds2time(10)
710 #define MAX_COMPRESSIONS_SIZE 255
718 typedef struct raw_extension_st
{
719 /* Raw packet data for the extension */
721 /* Set to 1 if the extension is present or 0 otherwise */
723 /* Set to 1 if we have already parsed the extension or 0 otherwise */
725 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
727 /* Track what order extensions are received in (0-based). */
728 size_t received_order
;
733 unsigned int legacy_version
;
734 unsigned char random
[SSL3_RANDOM_SIZE
];
735 size_t session_id_len
;
736 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
737 size_t dtls_cookie_len
;
738 unsigned char dtls_cookie
[DTLS1_COOKIE_LENGTH
];
740 size_t compressions_len
;
741 unsigned char compressions
[MAX_COMPRESSIONS_SIZE
];
743 size_t pre_proc_exts_len
;
744 RAW_EXTENSION
*pre_proc_exts
;
748 * Extension index values NOTE: Any updates to these defines should be mirrored
749 * with equivalent updates to ext_defs in extensions.c
751 typedef enum tlsext_index_en
{
752 TLSEXT_IDX_renegotiate
,
753 TLSEXT_IDX_server_name
,
754 TLSEXT_IDX_max_fragment_length
,
756 TLSEXT_IDX_ec_point_formats
,
757 TLSEXT_IDX_supported_groups
,
758 TLSEXT_IDX_session_ticket
,
759 TLSEXT_IDX_status_request
,
760 TLSEXT_IDX_next_proto_neg
,
761 TLSEXT_IDX_application_layer_protocol_negotiation
,
763 TLSEXT_IDX_encrypt_then_mac
,
764 TLSEXT_IDX_signed_certificate_timestamp
,
765 TLSEXT_IDX_extended_master_secret
,
766 TLSEXT_IDX_signature_algorithms_cert
,
767 TLSEXT_IDX_post_handshake_auth
,
768 TLSEXT_IDX_signature_algorithms
,
769 TLSEXT_IDX_supported_versions
,
770 TLSEXT_IDX_psk_kex_modes
,
771 TLSEXT_IDX_key_share
,
773 TLSEXT_IDX_cryptopro_bug
,
774 TLSEXT_IDX_early_data
,
775 TLSEXT_IDX_certificate_authorities
,
778 /* Dummy index - must always be the last entry */
779 TLSEXT_IDX_num_builtins
782 DEFINE_LHASH_OF_EX(SSL_SESSION
);
783 /* Needed in ssl_cert.c */
784 DEFINE_LHASH_OF_EX(X509_NAME
);
786 # define TLSEXT_KEYNAME_LENGTH 16
787 # define TLSEXT_TICK_KEY_LENGTH 32
789 typedef struct ssl_ctx_ext_secure_st
{
790 unsigned char tick_hmac_key
[TLSEXT_TICK_KEY_LENGTH
];
791 unsigned char tick_aes_key
[TLSEXT_TICK_KEY_LENGTH
];
792 } SSL_CTX_EXT_SECURE
;
795 * Helper function for HMAC
796 * The structure should be considered opaque, it will change once the low
797 * level deprecated calls are removed. At that point it can be replaced
798 * by EVP_MAC_CTX and most of the functions converted to macros or inlined
801 typedef struct ssl_hmac_st
{
803 # ifndef OPENSSL_NO_DEPRECATED_3_0
808 SSL_HMAC
*ssl_hmac_new(const SSL_CTX
*ctx
);
809 void ssl_hmac_free(SSL_HMAC
*ctx
);
810 # ifndef OPENSSL_NO_DEPRECATED_3_0
811 HMAC_CTX
*ssl_hmac_get0_HMAC_CTX(SSL_HMAC
*ctx
);
813 EVP_MAC_CTX
*ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC
*ctx
);
814 int ssl_hmac_init(SSL_HMAC
*ctx
, void *key
, size_t len
, char *md
);
815 int ssl_hmac_update(SSL_HMAC
*ctx
, const unsigned char *data
, size_t len
);
816 int ssl_hmac_final(SSL_HMAC
*ctx
, unsigned char *md
, size_t *len
,
818 size_t ssl_hmac_size(const SSL_HMAC
*ctx
);
820 int ssl_get_EC_curve_nid(const EVP_PKEY
*pkey
);
821 __owur
int tls13_set_encoded_pub_key(EVP_PKEY
*pkey
,
822 const unsigned char *enckey
,
825 typedef struct tls_group_info_st
{
826 char *tlsname
; /* Curve Name as in TLS specs */
827 char *realname
; /* Curve Name according to provider */
828 char *algorithm
; /* Algorithm name to fetch */
829 unsigned int secbits
; /* Bits of security (from SP800-57) */
830 uint16_t group_id
; /* Group ID */
831 int mintls
; /* Minimum TLS version, -1 unsupported */
832 int maxtls
; /* Maximum TLS version (or 0 for undefined) */
833 int mindtls
; /* Minimum DTLS version, -1 unsupported */
834 int maxdtls
; /* Maximum DTLS version (or 0 for undefined) */
835 char is_kem
; /* Mode for this Group: 0 is KEX, 1 is KEM */
839 # define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */
840 # define TLS_GROUP_CURVE_PRIME 0x00000001U
841 # define TLS_GROUP_CURVE_CHAR2 0x00000002U
842 # define TLS_GROUP_CURVE_CUSTOM 0x00000004U
843 # define TLS_GROUP_FFDHE 0x00000008U
844 # define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U
846 # define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3)
849 OSSL_LIB_CTX
*libctx
;
851 const SSL_METHOD
*method
;
852 STACK_OF(SSL_CIPHER
) *cipher_list
;
853 /* same as above but sorted for lookup */
854 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
855 /* TLSv1.3 specific ciphersuites */
856 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
;
857 struct x509_store_st
/* X509_STORE */ *cert_store
;
858 LHASH_OF(SSL_SESSION
) *sessions
;
860 * Most session-ids that will be cached, default is
861 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
863 size_t session_cache_size
;
864 struct ssl_session_st
*session_cache_head
;
865 struct ssl_session_st
*session_cache_tail
;
867 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
868 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
869 * means only SSL_accept will cache SSL_SESSIONS.
871 uint32_t session_cache_mode
;
873 * If timeout is not 0, it is the default timeout value set when
874 * SSL_new() is called. This has been put in to make life easier to set
877 OSSL_TIME session_timeout
;
879 * If this callback is not null, it will be called each time a session id
880 * is added to the cache. If this function returns 1, it means that the
881 * callback will do a SSL_SESSION_free() when it has finished using it.
882 * Otherwise, on 0, it means the callback has finished with it. If
883 * remove_session_cb is not null, it will be called when a session-id is
884 * removed from the cache. After the call, OpenSSL will
885 * SSL_SESSION_free() it.
887 int (*new_session_cb
) (struct ssl_st
*ssl
, SSL_SESSION
*sess
);
888 void (*remove_session_cb
) (struct ssl_ctx_st
*ctx
, SSL_SESSION
*sess
);
889 SSL_SESSION
*(*get_session_cb
) (struct ssl_st
*ssl
,
890 const unsigned char *data
, int len
,
893 TSAN_QUALIFIER
int sess_connect
; /* SSL new conn - started */
894 TSAN_QUALIFIER
int sess_connect_renegotiate
; /* SSL reneg - requested */
895 TSAN_QUALIFIER
int sess_connect_good
; /* SSL new conne/reneg - finished */
896 TSAN_QUALIFIER
int sess_accept
; /* SSL new accept - started */
897 TSAN_QUALIFIER
int sess_accept_renegotiate
; /* SSL reneg - requested */
898 TSAN_QUALIFIER
int sess_accept_good
; /* SSL accept/reneg - finished */
899 TSAN_QUALIFIER
int sess_miss
; /* session lookup misses */
900 TSAN_QUALIFIER
int sess_timeout
; /* reuse attempt on timeouted session */
901 TSAN_QUALIFIER
int sess_cache_full
; /* session removed due to full cache */
902 TSAN_QUALIFIER
int sess_hit
; /* session reuse actually done */
903 TSAN_QUALIFIER
int sess_cb_hit
; /* session-id that was not in
904 * the cache was passed back via
905 * the callback. This indicates
906 * that the application is
907 * supplying session-id's from
908 * other processes - spooky
911 #ifdef TSAN_REQUIRES_LOCKING
912 CRYPTO_RWLOCK
*tsan_lock
;
915 CRYPTO_REF_COUNT references
;
917 /* if defined, these override the X509_verify_cert() calls */
918 int (*app_verify_callback
) (X509_STORE_CTX
*, void *);
919 void *app_verify_arg
;
921 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
922 * ('app_verify_callback' was called with just one argument)
925 /* Default password callback. */
926 pem_password_cb
*default_passwd_callback
;
928 /* Default password callback user data. */
929 void *default_passwd_callback_userdata
;
931 /* get client cert callback */
932 int (*client_cert_cb
) (SSL
*ssl
, X509
**x509
, EVP_PKEY
**pkey
);
934 /* cookie generate callback */
935 int (*app_gen_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
936 unsigned int *cookie_len
);
938 /* verify cookie callback */
939 int (*app_verify_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
940 unsigned int cookie_len
);
942 /* TLS1.3 app-controlled cookie generate callback */
943 int (*gen_stateless_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
946 /* TLS1.3 verify app-controlled cookie callback */
947 int (*verify_stateless_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
950 CRYPTO_EX_DATA ex_data
;
952 const EVP_MD
*md5
; /* For SSLv3/TLSv1 'ssl3-md5' */
953 const EVP_MD
*sha1
; /* For SSLv3/TLSv1 'ssl3-sha1' */
955 STACK_OF(X509
) *extra_certs
;
956 STACK_OF(SSL_COMP
) *comp_methods
; /* stack of SSL_COMP, SSLv3/TLSv1 */
958 /* Default values used when no per-SSL value is defined follow */
960 /* used if SSL's info_callback is NULL */
961 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
964 * What we put in certificate_authorities extension for TLS 1.3
965 * (ClientHello and CertificateRequest) or just client cert requests for
966 * earlier versions. If client_ca_names is populated then it is only used
967 * for client cert requests, and in preference to ca_names.
969 STACK_OF(X509_NAME
) *ca_names
;
970 STACK_OF(X509_NAME
) *client_ca_names
;
973 * Default values to use in SSL structures follow (these are copied by
979 int min_proto_version
;
980 int max_proto_version
;
981 size_t max_cert_list
;
983 struct cert_st
/* CERT */ *cert
;
986 /* callback that allows applications to peek at protocol messages */
987 void (*msg_callback
) (int write_p
, int version
, int content_type
,
988 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
989 void *msg_callback_arg
;
991 uint32_t verify_mode
;
992 size_t sid_ctx_length
;
993 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
994 /* called 'verify_callback' in the SSL */
995 int (*default_verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
997 /* Default generate session ID callback. */
998 GEN_SESSION_CB generate_session_id
;
1000 X509_VERIFY_PARAM
*param
;
1004 # ifndef OPENSSL_NO_CT
1005 CTLOG_STORE
*ctlog_store
; /* CT Log Store */
1007 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1008 * If they are not, the connection should be aborted.
1010 ssl_ct_validation_cb ct_validation_callback
;
1011 void *ct_validation_callback_arg
;
1015 * If we're using more than one pipeline how should we divide the data
1016 * up between the pipes?
1018 size_t split_send_fragment
;
1020 * Maximum amount of data to send in one fragment. actual record size can
1021 * be more than this due to padding and MAC overheads.
1023 size_t max_send_fragment
;
1025 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1026 size_t max_pipelines
;
1028 /* The default read buffer length to use (0 means not set) */
1029 size_t default_read_buf_len
;
1031 # ifndef OPENSSL_NO_ENGINE
1033 * Engine to pass requests for client certs to
1035 ENGINE
*client_cert_engine
;
1038 /* ClientHello callback. Mostly for extensions, but not entirely. */
1039 SSL_client_hello_cb_fn client_hello_cb
;
1040 void *client_hello_cb_arg
;
1042 /* TLS extensions. */
1044 /* TLS extensions servername callback */
1045 int (*servername_cb
) (SSL
*, int *, void *);
1046 void *servername_arg
;
1047 /* RFC 4507 session ticket keys */
1048 unsigned char tick_key_name
[TLSEXT_KEYNAME_LENGTH
];
1049 SSL_CTX_EXT_SECURE
*secure
;
1050 # ifndef OPENSSL_NO_DEPRECATED_3_0
1051 /* Callback to support customisation of ticket key setting */
1052 int (*ticket_key_cb
) (SSL
*ssl
,
1053 unsigned char *name
, unsigned char *iv
,
1054 EVP_CIPHER_CTX
*ectx
, HMAC_CTX
*hctx
, int enc
);
1056 int (*ticket_key_evp_cb
) (SSL
*ssl
,
1057 unsigned char *name
, unsigned char *iv
,
1058 EVP_CIPHER_CTX
*ectx
, EVP_MAC_CTX
*hctx
,
1061 /* certificate status request info */
1062 /* Callback for status request */
1063 int (*status_cb
) (SSL
*ssl
, void *arg
);
1065 /* ext status type used for CSR extension (OCSP Stapling) */
1067 /* RFC 4366 Maximum Fragment Length Negotiation */
1068 uint8_t max_fragment_len_mode
;
1070 /* EC extension values inherited by SSL structure */
1071 size_t ecpointformats_len
;
1072 unsigned char *ecpointformats
;
1074 size_t supportedgroups_len
;
1075 uint16_t *supportedgroups
;
1077 uint16_t *supported_groups_default
;
1078 size_t supported_groups_default_len
;
1080 * ALPN information (we are in the process of transitioning from NPN to
1085 * For a server, this contains a callback function that allows the
1086 * server to select the protocol for the connection.
1087 * out: on successful return, this must point to the raw protocol
1088 * name (without the length prefix).
1089 * outlen: on successful return, this contains the length of |*out|.
1090 * in: points to the client's list of supported protocols in
1092 * inlen: the length of |in|.
1094 int (*alpn_select_cb
) (SSL
*s
,
1095 const unsigned char **out
,
1096 unsigned char *outlen
,
1097 const unsigned char *in
,
1098 unsigned int inlen
, void *arg
);
1099 void *alpn_select_cb_arg
;
1102 * For a client, this contains the list of supported protocols in wire
1105 unsigned char *alpn
;
1108 # ifndef OPENSSL_NO_NEXTPROTONEG
1109 /* Next protocol negotiation information */
1112 * For a server, this contains a callback function by which the set of
1113 * advertised protocols can be provided.
1115 SSL_CTX_npn_advertised_cb_func npn_advertised_cb
;
1116 void *npn_advertised_cb_arg
;
1118 * For a client, this contains a callback function that selects the next
1119 * protocol from the list provided by the server.
1121 SSL_CTX_npn_select_cb_func npn_select_cb
;
1122 void *npn_select_cb_arg
;
1125 unsigned char cookie_hmac_key
[SHA256_DIGEST_LENGTH
];
1128 # ifndef OPENSSL_NO_PSK
1129 SSL_psk_client_cb_func psk_client_callback
;
1130 SSL_psk_server_cb_func psk_server_callback
;
1132 SSL_psk_find_session_cb_func psk_find_session_cb
;
1133 SSL_psk_use_session_cb_func psk_use_session_cb
;
1135 # ifndef OPENSSL_NO_SRP
1136 SRP_CTX srp_ctx
; /* ctx for SRP authentication */
1139 /* Shared DANE context */
1140 struct dane_ctx_st dane
;
1142 # ifndef OPENSSL_NO_SRTP
1143 /* SRTP profiles we are willing to do from RFC 5764 */
1144 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1147 * Callback for disabling session caching and ticket support on a session
1148 * basis, depending on the chosen cipher.
1150 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1152 CRYPTO_RWLOCK
*lock
;
1155 * Callback for logging key material for use with debugging tools like
1156 * Wireshark. The callback should log `line` followed by a newline.
1158 SSL_CTX_keylog_cb_func keylog_callback
;
1161 * The maximum number of bytes advertised in session tickets that can be
1162 * sent as early data.
1164 uint32_t max_early_data
;
1167 * The maximum number of bytes of early data that a server will tolerate
1168 * (which should be at least as much as max_early_data).
1170 uint32_t recv_max_early_data
;
1172 /* TLS1.3 padding callback */
1173 size_t (*record_padding_cb
)(SSL
*s
, int type
, size_t len
, void *arg
);
1174 void *record_padding_arg
;
1175 size_t block_padding
;
1177 /* Session ticket appdata */
1178 SSL_CTX_generate_session_ticket_fn generate_ticket_cb
;
1179 SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb
;
1180 void *ticket_cb_data
;
1182 /* The number of TLS1.3 tickets to automatically send */
1185 /* Callback to determine if early_data is acceptable or not */
1186 SSL_allow_early_data_cb_fn allow_early_data_cb
;
1187 void *allow_early_data_cb_data
;
1189 /* Do we advertise Post-handshake auth support? */
1192 /* Callback for SSL async handling */
1193 SSL_async_callback_fn async_cb
;
1198 int ssl_mac_pkey_id
[SSL_MD_NUM_IDX
];
1199 const EVP_CIPHER
*ssl_cipher_methods
[SSL_ENC_NUM_IDX
];
1200 const EVP_MD
*ssl_digest_methods
[SSL_MD_NUM_IDX
];
1201 size_t ssl_mac_secret_size
[SSL_MD_NUM_IDX
];
1203 /* Cache of all sigalgs we know and whether they are available or not */
1204 struct sigalg_lookup_st
*sigalg_lookup_cache
;
1206 TLS_GROUP_INFO
*group_list
;
1207 size_t group_list_len
;
1208 size_t group_list_max_len
;
1210 /* masks of disabled algorithms */
1211 uint32_t disabled_enc_mask
;
1212 uint32_t disabled_mac_mask
;
1213 uint32_t disabled_mkey_mask
;
1214 uint32_t disabled_auth_mask
;
1217 typedef struct cert_pkey_st CERT_PKEY
;
1219 #define SSL_TYPE_SSL_CONNECTION 0
1220 #define SSL_TYPE_QUIC_CONNECTION 1
1221 #define SSL_TYPE_QUIC_STREAM 2
1226 const SSL_METHOD
*method
;
1227 CRYPTO_REF_COUNT references
;
1228 CRYPTO_RWLOCK
*lock
;
1229 /* extra application data */
1230 CRYPTO_EX_DATA ex_data
;
1233 struct ssl_connection_st
{
1234 /* type identifier and common data */
1236 #ifndef OPENSSL_NO_QUIC
1237 /* pointer to parent SSL of QUIC_CONNECTION or self */
1238 struct ssl_st
*user_ssl
;
1241 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
1246 * There are 2 BIO's even though they are normally both the same. This
1247 * is so data can be read and written to different handlers
1249 /* used by SSL_read */
1251 /* used by SSL_write */
1253 /* used during session-id reuse to concatenate messages */
1256 * This holds a variable that indicates what we were doing when a 0 or -1
1257 * is returned. This is needed for non-blocking IO so we know what
1258 * request needs re-doing when in SSL_accept or SSL_connect
1261 int (*handshake_func
) (SSL
*);
1263 * Imagine that here's a boolean member "init" that is switched as soon
1264 * as SSL_set_{accept/connect}_state is called for the first time, so
1265 * that "state" and "handshake_func" are properly initialized. But as
1266 * handshake_func is == 0 until then, we use this test instead of an
1269 /* are we the server side? */
1272 * Generate a new session or reuse an old one.
1273 * NB: For servers, the 'new' session may actually be a previously
1274 * cached session or even the previous session unless
1275 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1278 /* don't send shutdown packets */
1280 /* we have shut things down, 0x01 sent, 0x02 for received */
1284 SSL_EARLY_DATA_STATE early_data_state
;
1285 BUF_MEM
*init_buf
; /* buffer used during init */
1286 void *init_msg
; /* pointer to handshake message body, set by
1287 * ssl3_get_message() */
1288 size_t init_num
; /* amount read/written */
1289 size_t init_off
; /* amount read/written */
1293 size_t read_mac_secret_size
;
1294 unsigned char read_mac_secret
[EVP_MAX_MD_SIZE
];
1295 size_t write_mac_secret_size
;
1296 unsigned char write_mac_secret
[EVP_MAX_MD_SIZE
];
1297 unsigned char server_random
[SSL3_RANDOM_SIZE
];
1298 unsigned char client_random
[SSL3_RANDOM_SIZE
];
1300 /* used during startup, digest all incoming/outgoing packets */
1301 BIO
*handshake_buffer
;
1303 * When handshake digest is determined, buffer is hashed and
1304 * freed and MD_CTX for the required digest is stored here.
1306 EVP_MD_CTX
*handshake_dgst
;
1308 * Set whenever an expected ChangeCipherSpec message is processed.
1309 * Unset when the peer's Finished message is received.
1310 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1312 int change_cipher_spec
;
1316 * we allow one fatal and one warning alert to be outstanding, send close
1317 * alert via the warning alert
1320 unsigned char send_alert
[2];
1322 * This flag is set when we should renegotiate ASAP, basically when there
1323 * is no more data in the read or write buffers
1326 int total_renegotiations
;
1327 int num_renegotiations
;
1328 int in_read_app_data
;
1330 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1331 unsigned char finish_md
[EVP_MAX_MD_SIZE
* 2];
1332 size_t finish_md_len
;
1333 unsigned char peer_finish_md
[EVP_MAX_MD_SIZE
* 2];
1334 size_t peer_finish_md_len
;
1335 size_t message_size
;
1337 /* used to hold the new cipher we are going to use */
1338 const SSL_CIPHER
*new_cipher
;
1339 EVP_PKEY
*pkey
; /* holds short lived key exchange key */
1340 /* used for certificate requests */
1342 /* Certificate types in certificate request message. */
1345 /* Certificate authorities list peer sent */
1346 STACK_OF(X509_NAME
) *peer_ca_names
;
1347 size_t key_block_length
;
1348 unsigned char *key_block
;
1349 const EVP_CIPHER
*new_sym_enc
;
1350 const EVP_MD
*new_hash
;
1351 int new_mac_pkey_type
;
1352 size_t new_mac_secret_size
;
1353 # ifndef OPENSSL_NO_COMP
1354 const SSL_COMP
*new_compression
;
1356 char *new_compression
;
1359 /* Raw values of the cipher list from a client */
1360 unsigned char *ciphers_raw
;
1361 size_t ciphers_rawlen
;
1362 /* Temporary storage for premaster secret */
1365 # ifndef OPENSSL_NO_PSK
1366 /* Temporary storage for PSK key */
1370 /* Signature algorithm we actually use */
1371 const struct sigalg_lookup_st
*sigalg
;
1372 /* Pointer to certificate we use */
1375 * signature algorithms peer reports: e.g. supported signature
1376 * algorithms extension for server or as part of a certificate
1377 * request for client.
1378 * Keep track of the algorithms for TLS and X.509 usage separately.
1380 uint16_t *peer_sigalgs
;
1381 uint16_t *peer_cert_sigalgs
;
1382 /* Size of above arrays */
1383 size_t peer_sigalgslen
;
1384 size_t peer_cert_sigalgslen
;
1385 /* Sigalg peer actually uses */
1386 const struct sigalg_lookup_st
*peer_sigalg
;
1388 * Set if corresponding CERT_PKEY can be used with current
1389 * SSL session: e.g. appropriate curve, signature algorithms etc.
1390 * If zero it can't be used at all.
1392 uint32_t valid_flags
[SSL_PKEY_NUM
];
1394 * For servers the following masks are for the key and auth algorithms
1395 * that are supported by the certs below. For clients they are masks of
1396 * *disabled* algorithms based on the current session.
1401 * The following are used by the client to see if a cipher is allowed or
1402 * not. It contains the minimum and maximum version the client's using
1403 * based on what it knows so far.
1409 /* Connection binding to prevent renegotiation attacks */
1410 unsigned char previous_client_finished
[EVP_MAX_MD_SIZE
];
1411 size_t previous_client_finished_len
;
1412 unsigned char previous_server_finished
[EVP_MAX_MD_SIZE
];
1413 size_t previous_server_finished_len
;
1414 int send_connection_binding
;
1416 # ifndef OPENSSL_NO_NEXTPROTONEG
1418 * Set if we saw the Next Protocol Negotiation extension from our peer.
1424 * ALPN information (we are in the process of transitioning from NPN to
1429 * In a server these point to the selected ALPN protocol after the
1430 * ClientHello has been processed. In a client these contain the protocol
1431 * that the server selected once the ServerHello has been processed.
1433 unsigned char *alpn_selected
;
1434 size_t alpn_selected_len
;
1435 /* used by the server to know what options were proposed */
1436 unsigned char *alpn_proposed
;
1437 size_t alpn_proposed_len
;
1438 /* used by the client to know if it actually sent alpn */
1442 * This is set to true if we believe that this is a version of Safari
1443 * running on OS X 10.6 or newer. We wish to know this because Safari on
1444 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1446 char is_probably_safari
;
1449 * Track whether we did a key exchange this handshake or not, so
1450 * SSL_get_negotiated_group() knows whether to fall back to the
1451 * value in the SSL_SESSION.
1454 /* For clients: peer temporary key */
1455 /* The group_id for the key exchange key */
1461 struct dtls1_state_st
*d1
; /* DTLSv1 variables */
1462 /* callback that allows applications to peek at protocol messages */
1463 void (*msg_callback
) (int write_p
, int version
, int content_type
,
1464 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
1465 void *msg_callback_arg
;
1466 int hit
; /* reusing a previous session */
1467 X509_VERIFY_PARAM
*param
;
1468 /* Per connection DANE state */
1471 STACK_OF(SSL_CIPHER
) *peer_ciphers
;
1472 STACK_OF(SSL_CIPHER
) *cipher_list
;
1473 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
1474 /* TLSv1.3 specific ciphersuites */
1475 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
;
1477 * These are the ones being used, the ones in SSL_SESSION are the ones to
1478 * be 'copied' into these ones
1482 * The TLS1.3 secrets.
1484 unsigned char early_secret
[EVP_MAX_MD_SIZE
];
1485 unsigned char handshake_secret
[EVP_MAX_MD_SIZE
];
1486 unsigned char master_secret
[EVP_MAX_MD_SIZE
];
1487 unsigned char resumption_master_secret
[EVP_MAX_MD_SIZE
];
1488 unsigned char client_finished_secret
[EVP_MAX_MD_SIZE
];
1489 unsigned char server_finished_secret
[EVP_MAX_MD_SIZE
];
1490 unsigned char server_finished_hash
[EVP_MAX_MD_SIZE
];
1491 unsigned char handshake_traffic_hash
[EVP_MAX_MD_SIZE
];
1492 unsigned char client_app_traffic_secret
[EVP_MAX_MD_SIZE
];
1493 unsigned char server_app_traffic_secret
[EVP_MAX_MD_SIZE
];
1494 unsigned char exporter_master_secret
[EVP_MAX_MD_SIZE
];
1495 unsigned char early_exporter_master_secret
[EVP_MAX_MD_SIZE
];
1496 EVP_CIPHER_CTX
*enc_read_ctx
; /* cryptographic state */
1497 unsigned char read_iv
[EVP_MAX_IV_LENGTH
]; /* TLSv1.3 static read IV */
1498 EVP_MD_CTX
*read_hash
; /* used for mac generation */
1499 COMP_CTX
*compress
; /* compression */
1500 COMP_CTX
*expand
; /* uncompress */
1501 EVP_CIPHER_CTX
*enc_write_ctx
; /* cryptographic state */
1502 unsigned char write_iv
[EVP_MAX_IV_LENGTH
]; /* TLSv1.3 static write IV */
1503 EVP_MD_CTX
*write_hash
; /* used for mac generation */
1506 /* This is used to hold the server certificate used */
1507 struct cert_st
/* CERT */ *cert
;
1510 * The hash of all messages prior to the CertificateVerify, and the length
1513 unsigned char cert_verify_hash
[EVP_MAX_MD_SIZE
];
1514 size_t cert_verify_hash_len
;
1516 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1517 enum {SSL_HRR_NONE
= 0, SSL_HRR_PENDING
, SSL_HRR_COMPLETE
}
1518 hello_retry_request
;
1521 * the session_id_context is used to ensure sessions are only reused in
1522 * the appropriate context
1524 size_t sid_ctx_length
;
1525 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
1526 /* This can also be in the session once a session is established */
1527 SSL_SESSION
*session
;
1528 /* TLSv1.3 PSK session */
1529 SSL_SESSION
*psksession
;
1530 unsigned char *psksession_id
;
1531 size_t psksession_id_len
;
1532 /* Default generate session ID callback. */
1533 GEN_SESSION_CB generate_session_id
;
1535 * The temporary TLSv1.3 session id. This isn't really a session id at all
1536 * but is a random value sent in the legacy session id field.
1538 unsigned char tmp_session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
1539 size_t tmp_session_id_len
;
1542 * 0 don't care about verify failure.
1543 * 1 fail if verify fails
1545 uint32_t verify_mode
;
1546 /* fail if callback returns 0 */
1547 int (*verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
1548 /* optional informational callback */
1549 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
1550 /* error bytes to be written */
1554 # ifndef OPENSSL_NO_PSK
1555 SSL_psk_client_cb_func psk_client_callback
;
1556 SSL_psk_server_cb_func psk_server_callback
;
1558 SSL_psk_find_session_cb_func psk_find_session_cb
;
1559 SSL_psk_use_session_cb_func psk_use_session_cb
;
1561 /* Verified chain of peer */
1562 STACK_OF(X509
) *verified_chain
;
1565 * What we put in certificate_authorities extension for TLS 1.3
1566 * (ClientHello and CertificateRequest) or just client cert requests for
1567 * earlier versions. If client_ca_names is populated then it is only used
1568 * for client cert requests, and in preference to ca_names.
1570 STACK_OF(X509_NAME
) *ca_names
;
1571 STACK_OF(X509_NAME
) *client_ca_names
;
1572 /* protocol behaviour */
1576 int min_proto_version
;
1577 int max_proto_version
;
1578 size_t max_cert_list
;
1581 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1582 * secret and SSLv3/TLS (<=1.2) rollback check
1586 * If we're using more than one pipeline how should we divide the data
1587 * up between the pipes?
1589 size_t split_send_fragment
;
1591 * Maximum amount of data to send in one fragment. actual record size can
1592 * be more than this due to padding and MAC overheads.
1594 size_t max_send_fragment
;
1595 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1596 size_t max_pipelines
;
1599 /* Built-in extension flags */
1600 uint8_t extflags
[TLSEXT_IDX_num_builtins
];
1601 /* TLS extension debug callback */
1602 void (*debug_cb
)(SSL
*s
, int client_server
, int type
,
1603 const unsigned char *data
, int len
, void *arg
);
1606 /* certificate status request info */
1607 /* Status type or -1 if no status type */
1609 /* Raw extension data, if seen */
1610 unsigned char *scts
;
1611 /* Length of raw extension data, if seen */
1613 /* Expect OCSP CertificateStatus message */
1614 int status_expected
;
1617 /* OCSP status request only */
1618 STACK_OF(OCSP_RESPID
) *ids
;
1619 X509_EXTENSIONS
*exts
;
1620 /* OCSP response received or to be sent */
1621 unsigned char *resp
;
1625 /* RFC4507 session ticket expected to be received or sent */
1626 int ticket_expected
;
1627 /* TLS 1.3 tickets requested by the application. */
1628 int extra_tickets_expected
;
1629 size_t ecpointformats_len
;
1631 unsigned char *ecpointformats
;
1633 size_t peer_ecpointformats_len
;
1635 unsigned char *peer_ecpointformats
;
1636 size_t supportedgroups_len
;
1638 uint16_t *supportedgroups
;
1640 size_t peer_supportedgroups_len
;
1642 uint16_t *peer_supportedgroups
;
1644 /* TLS Session Ticket extension override */
1645 TLS_SESSION_TICKET_EXT
*session_ticket
;
1646 /* TLS Session Ticket extension callback */
1647 tls_session_ticket_ext_cb_fn session_ticket_cb
;
1648 void *session_ticket_cb_arg
;
1649 /* TLS pre-shared secret session resumption */
1650 tls_session_secret_cb_fn session_secret_cb
;
1651 void *session_secret_cb_arg
;
1653 * For a client, this contains the list of supported protocols in wire
1656 unsigned char *alpn
;
1659 * Next protocol negotiation. For the client, this is the protocol that
1660 * we sent in NextProtocol and is set when handling ServerHello
1661 * extensions. For a server, this is the client's selected_protocol from
1662 * NextProtocol and is set when handling the NextProtocol message, before
1663 * the Finished message.
1668 /* The available PSK key exchange modes */
1671 /* Set to one if we have negotiated ETM */
1674 /* Are we expecting to receive early data? */
1676 /* Is the session suitable for early data? */
1679 /* May be sent by a server in HRR. Must be echoed back in ClientHello */
1680 unsigned char *tls13_cookie
;
1681 size_t tls13_cookie_len
;
1682 /* Have we received a cookie from the client? */
1686 * Maximum Fragment Length as per RFC 4366.
1687 * If this member contains one of the allowed values (1-4)
1688 * then we should include Maximum Fragment Length Negotiation
1689 * extension in Client Hello.
1690 * Please note that value of this member does not have direct
1691 * effect. The actual (binding) value is stored in SSL_SESSION,
1692 * as this extension is optional on server side.
1694 uint8_t max_fragment_len_mode
;
1697 * On the client side the number of ticket identities we sent in the
1698 * ClientHello. On the server side the identity of the ticket we
1705 * Parsed form of the ClientHello, kept around across client_hello_cb
1708 CLIENTHELLO_MSG
*clienthello
;
1711 * no further mod of servername
1712 * 0 : call the servername extension callback.
1713 * 1 : prepare 2, allow last ack just after in server callback.
1714 * 2 : don't call servername callback, no ack in server hello
1716 int servername_done
;
1717 # ifndef OPENSSL_NO_CT
1719 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1720 * If they are not, the connection should be aborted.
1722 ssl_ct_validation_cb ct_validation_callback
;
1723 /* User-supplied argument that is passed to the ct_validation_callback */
1724 void *ct_validation_callback_arg
;
1726 * Consolidated stack of SCTs from all sources.
1727 * Lazily populated by CT_get_peer_scts(SSL*)
1729 STACK_OF(SCT
) *scts
;
1730 /* Have we attempted to find/parse SCTs yet? */
1733 SSL_CTX
*session_ctx
; /* initial ctx, used to store sessions */
1734 # ifndef OPENSSL_NO_SRTP
1736 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1737 /* What's been chosen */
1738 SRTP_PROTECTION_PROFILE
*srtp_profile
;
1741 * 1 if we are renegotiating.
1742 * 2 if we are a server and are inside a handshake
1743 * (i.e. not just sending a HelloRequest)
1746 /* If sending a KeyUpdate is pending */
1748 /* Post-handshake authentication state */
1749 SSL_PHA_STATE post_handshake_auth
;
1751 uint8_t* pha_context
;
1752 size_t pha_context_len
;
1754 EVP_MD_CTX
*pha_dgst
; /* this is just the digest through ClientFinished */
1756 # ifndef OPENSSL_NO_SRP
1757 /* ctx for SRP authentication */
1761 * Callback for disabling session caching and ticket support on a session
1762 * basis, depending on the chosen cipher.
1764 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1766 /* Record layer data */
1767 RECORD_LAYER rlayer
;
1769 /* Default password callback. */
1770 pem_password_cb
*default_passwd_callback
;
1771 /* Default password callback user data. */
1772 void *default_passwd_callback_userdata
;
1773 /* Async Job info */
1775 ASYNC_WAIT_CTX
*waitctx
;
1779 * The maximum number of bytes advertised in session tickets that can be
1780 * sent as early data.
1782 uint32_t max_early_data
;
1784 * The maximum number of bytes of early data that a server will tolerate
1785 * (which should be at least as much as max_early_data).
1787 uint32_t recv_max_early_data
;
1790 * The number of bytes of early data received so far. If we accepted early
1791 * data then this is a count of the plaintext bytes. If we rejected it then
1792 * this is a count of the ciphertext bytes.
1794 uint32_t early_data_count
;
1796 /* The number of TLS1.3 tickets to automatically send */
1798 /* The number of TLS1.3 tickets actually sent so far */
1799 size_t sent_tickets
;
1800 /* The next nonce value to use when we send a ticket on this connection */
1801 uint64_t next_ticket_nonce
;
1803 /* Callback to determine if early_data is acceptable or not */
1804 SSL_allow_early_data_cb_fn allow_early_data_cb
;
1805 void *allow_early_data_cb_data
;
1807 /* Callback for SSL async handling */
1808 SSL_async_callback_fn async_cb
;
1812 * Signature algorithms shared by client and server: cached because these
1813 * are used most often.
1815 const struct sigalg_lookup_st
**shared_sigalgs
;
1816 size_t shared_sigalgslen
;
1819 # define SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, c) \
1820 ((ssl) == NULL ? NULL \
1821 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1822 ? (c SSL_CONNECTION *)(ssl) \
1824 # define SSL_CONNECTION_NO_CONST
1825 # define SSL_CONNECTION_FROM_SSL_ONLY(ssl) \
1826 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1827 # define SSL_CONNECTION_FROM_CONST_SSL_ONLY(ssl) \
1828 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1829 # define SSL_CONNECTION_GET_CTX(sc) ((sc)->ssl.ctx)
1830 # ifndef OPENSSL_NO_QUIC
1831 # include "quic/quic_local.h"
1832 # define SSL_CONNECTION_FROM_SSL_int(ssl, c) \
1833 ((ssl) == NULL ? NULL \
1834 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1835 ? (c SSL_CONNECTION *)(ssl) \
1836 : ((ssl)->type == SSL_TYPE_QUIC_CONNECTION \
1837 ? (c SSL_CONNECTION *)((c QUIC_CONNECTION *)(ssl))->tls \
1839 # define SSL_CONNECTION_FROM_SSL(ssl) \
1840 SSL_CONNECTION_FROM_SSL_int(ssl, SSL_CONNECTION_NO_CONST)
1841 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1842 SSL_CONNECTION_FROM_SSL_int(ssl, const)
1843 # define SSL_CONNECTION_GET_SSL(sc) ((sc)->user_ssl)
1845 # define SSL_CONNECTION_FROM_SSL(ssl) \
1846 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1847 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1848 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1849 # define SSL_CONNECTION_GET_SSL(sc) (&(sc)->ssl)
1853 * Structure containing table entry of values associated with the signature
1854 * algorithms (signature scheme) extension
1856 typedef struct sigalg_lookup_st
{
1857 /* TLS 1.3 signature scheme name */
1859 /* Raw value used in extension */
1861 /* NID of hash algorithm or NID_undef if no hash */
1863 /* Index of hash algorithm or -1 if no hash algorithm */
1865 /* NID of signature algorithm */
1867 /* Index of signature algorithm */
1869 /* Combined hash and signature NID, if any */
1871 /* Required public key curve (ECDSA only) */
1873 /* Whether this signature algorithm is actually available for use */
1878 * Structure containing table entry of certificate info corresponding to
1882 int nid
; /* NID of public key algorithm */
1883 uint32_t amask
; /* authmask corresponding to key type */
1886 /* DTLS structures */
1888 # ifndef OPENSSL_NO_SCTP
1889 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1892 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1893 # define DTLS1_MAX_MTU_OVERHEAD 48
1896 * Flag used in message reuse to indicate the buffer contains the record
1897 * header as well as the handshake message header.
1899 # define DTLS1_SKIP_RECORD_HEADER 2
1901 struct dtls1_retransmit_state
{
1902 EVP_CIPHER_CTX
*enc_write_ctx
; /* cryptographic state */
1903 EVP_MD_CTX
*write_hash
; /* used for mac generation */
1904 COMP_CTX
*compress
; /* compression */
1905 SSL_SESSION
*session
;
1909 struct hm_header_st
{
1915 unsigned int is_ccs
;
1916 struct dtls1_retransmit_state saved_retransmit_state
;
1919 typedef struct hm_fragment_st
{
1920 struct hm_header_st msg_header
;
1921 unsigned char *fragment
;
1922 unsigned char *reassembly
;
1925 typedef struct pqueue_st pqueue
;
1926 typedef struct pitem_st pitem
;
1929 unsigned char priority
[8]; /* 64-bit value in big-endian encoding */
1934 typedef struct pitem_st
*piterator
;
1936 pitem
*pitem_new(unsigned char *prio64be
, void *data
);
1937 void pitem_free(pitem
*item
);
1938 pqueue
*pqueue_new(void);
1939 void pqueue_free(pqueue
*pq
);
1940 pitem
*pqueue_insert(pqueue
*pq
, pitem
*item
);
1941 pitem
*pqueue_peek(pqueue
*pq
);
1942 pitem
*pqueue_pop(pqueue
*pq
);
1943 pitem
*pqueue_find(pqueue
*pq
, unsigned char *prio64be
);
1944 pitem
*pqueue_iterator(pqueue
*pq
);
1945 pitem
*pqueue_next(piterator
*iter
);
1946 size_t pqueue_size(pqueue
*pq
);
1948 typedef struct dtls1_state_st
{
1949 unsigned char cookie
[DTLS1_COOKIE_LENGTH
];
1951 unsigned int cookie_verified
;
1952 /* handshake message numbers */
1953 unsigned short handshake_write_seq
;
1954 unsigned short next_handshake_write_seq
;
1955 unsigned short handshake_read_seq
;
1956 /* Buffered handshake messages */
1957 pqueue
*buffered_messages
;
1958 /* Buffered (sent) handshake records */
1959 pqueue
*sent_messages
;
1960 size_t link_mtu
; /* max on-the-wire DTLS packet size */
1961 size_t mtu
; /* max DTLS packet size */
1962 struct hm_header_st w_msg_hdr
;
1963 struct hm_header_st r_msg_hdr
;
1964 /* Number of alerts received so far */
1965 unsigned int timeout_num_alerts
;
1967 * Indicates when the last handshake msg sent will timeout
1969 OSSL_TIME next_timeout
;
1970 /* Timeout duration */
1971 unsigned int timeout_duration_us
;
1973 unsigned int retransmitting
;
1974 # ifndef OPENSSL_NO_SCTP
1975 int shutdown_received
;
1978 DTLS_timer_cb timer_cb
;
1983 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1985 # define EXPLICIT_PRIME_CURVE_TYPE 1
1986 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1987 # define NAMED_CURVE_TYPE 3
1989 struct cert_pkey_st
{
1991 EVP_PKEY
*privatekey
;
1992 /* Chain for this certificate */
1993 STACK_OF(X509
) *chain
;
1995 * serverinfo data for this certificate. The data is in TLS Extension
1996 * wire format, specifically it's a series of records like:
1997 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1999 * uint8_t data[length];
2001 unsigned char *serverinfo
;
2002 size_t serverinfo_length
;
2004 /* Retrieve Suite B flags */
2005 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
2006 /* Uses to check strict mode: suite B modes are always strict */
2007 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
2008 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
2011 ENDPOINT_CLIENT
= 0,
2018 unsigned short ext_type
;
2020 /* The context which this extension applies to */
2021 unsigned int context
;
2023 * Per-connection flags relating to this extension type: not used if
2024 * part of an SSL_CTX structure.
2027 SSL_custom_ext_add_cb_ex add_cb
;
2028 SSL_custom_ext_free_cb_ex free_cb
;
2030 SSL_custom_ext_parse_cb_ex parse_cb
;
2032 } custom_ext_method
;
2034 /* ext_flags values */
2037 * Indicates an extension has been received. Used to check for unsolicited or
2038 * duplicate extensions.
2040 # define SSL_EXT_FLAG_RECEIVED 0x1
2042 * Indicates an extension has been sent: used to enable sending of
2043 * corresponding ServerHello extension.
2045 # define SSL_EXT_FLAG_SENT 0x2
2048 custom_ext_method
*meths
;
2050 } custom_ext_methods
;
2052 typedef struct cert_st
{
2053 /* Current active set */
2055 * ALWAYS points to an element of the pkeys array
2056 * Probably it would make more sense to store
2057 * an index, not a pointer.
2062 DH
*(*dh_tmp_cb
) (SSL
*ssl
, int is_export
, int keysize
);
2064 /* Flags related to certificates */
2065 uint32_t cert_flags
;
2066 CERT_PKEY pkeys
[SSL_PKEY_NUM
];
2067 /* Custom certificate types sent in certificate request message. */
2071 * supported signature algorithms. When set on a client this is sent in
2072 * the client hello as the supported signature algorithms extension. For
2073 * servers it represents the signature algorithms we are willing to use.
2075 uint16_t *conf_sigalgs
;
2076 /* Size of above array */
2077 size_t conf_sigalgslen
;
2079 * Client authentication signature algorithms, if not set then uses
2080 * conf_sigalgs. On servers these will be the signature algorithms sent
2081 * to the client in a certificate request for TLS 1.2. On a client this
2082 * represents the signature algorithms we are willing to use for client
2085 uint16_t *client_sigalgs
;
2086 /* Size of above array */
2087 size_t client_sigalgslen
;
2089 * Certificate setup callback: if set is called whenever a certificate
2090 * may be required (client or server). the callback can then examine any
2091 * appropriate parameters and setup any certificates required. This
2092 * allows advanced applications to select certificates on the fly: for
2093 * example based on supported signature algorithms or curves.
2095 int (*cert_cb
) (SSL
*ssl
, void *arg
);
2098 * Optional X509_STORE for chain building or certificate validation If
2099 * NULL the parent SSL_CTX store is used instead.
2101 X509_STORE
*chain_store
;
2102 X509_STORE
*verify_store
;
2103 /* Custom extensions */
2104 custom_ext_methods custext
;
2105 /* Security callback */
2106 int (*sec_cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
2107 void *other
, void *ex
);
2108 /* Security level */
2111 # ifndef OPENSSL_NO_PSK
2112 /* If not NULL psk identity hint to use for servers */
2113 char *psk_identity_hint
;
2115 CRYPTO_REF_COUNT references
; /* >1 only if SSL_copy_session_id is used */
2116 CRYPTO_RWLOCK
*lock
;
2119 # define FP_ICC (int (*)(const void *,const void *))
2122 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
2123 * of a mess of functions, but hell, think of it as an opaque structure :-)
2125 typedef struct ssl3_enc_method
{
2126 int (*enc
) (SSL_CONNECTION
*, SSL3_RECORD
*, size_t, int,
2127 SSL_MAC_BUF
*, size_t);
2128 int (*mac
) (SSL_CONNECTION
*, SSL3_RECORD
*, unsigned char *, int);
2129 int (*setup_key_block
) (SSL_CONNECTION
*);
2130 int (*generate_master_secret
) (SSL_CONNECTION
*, unsigned char *,
2131 unsigned char *, size_t, size_t *);
2132 int (*change_cipher_state
) (SSL_CONNECTION
*, int);
2133 size_t (*final_finish_mac
) (SSL_CONNECTION
*, const char *, size_t,
2135 const char *client_finished_label
;
2136 size_t client_finished_label_len
;
2137 const char *server_finished_label
;
2138 size_t server_finished_label_len
;
2139 int (*alert_value
) (int);
2140 int (*export_keying_material
) (SSL_CONNECTION
*, unsigned char *, size_t,
2141 const char *, size_t,
2142 const unsigned char *, size_t,
2144 /* Various flags indicating protocol version requirements */
2146 /* Set the handshake header */
2147 int (*set_handshake_header
) (SSL_CONNECTION
*s
, WPACKET
*pkt
, int type
);
2148 /* Close construction of the handshake message */
2149 int (*close_construct_packet
) (SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2150 /* Write out handshake message */
2151 int (*do_write
) (SSL_CONNECTION
*s
);
2154 # define ssl_set_handshake_header(s, pkt, htype) \
2155 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
2156 # define ssl_close_construct_packet(s, pkt, htype) \
2157 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
2158 # define ssl_do_write(s) SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->do_write(s)
2160 /* Values for enc_flags */
2162 /* Uses explicit IV for CBC mode */
2163 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
2164 /* Uses signature algorithms extension */
2165 # define SSL_ENC_FLAG_SIGALGS 0x2
2166 /* Uses SHA256 default PRF */
2167 # define SSL_ENC_FLAG_SHA256_PRF 0x4
2169 # define SSL_ENC_FLAG_DTLS 0x8
2171 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
2172 * apply to others in future.
2174 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
2176 # ifndef OPENSSL_NO_COMP
2177 /* Used for holding the relevant compression methods loaded into SSL_CTX */
2178 typedef struct ssl3_comp_st
{
2179 int comp_id
; /* The identifier byte for this compression
2181 char *name
; /* Text name used for the compression type */
2182 COMP_METHOD
*method
; /* The method :-) */
2186 typedef enum downgrade_en
{
2193 * Dummy status type for the status_type extension. Indicates no status type
2196 #define TLSEXT_STATUSTYPE_nothing -1
2198 /* Sigalgs values */
2199 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
2200 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
2201 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
2202 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303
2203 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203
2204 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804
2205 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805
2206 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806
2207 #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809
2208 #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a
2209 #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b
2210 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
2211 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
2212 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
2213 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
2214 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
2215 #define TLSEXT_SIGALG_dsa_sha256 0x0402
2216 #define TLSEXT_SIGALG_dsa_sha384 0x0502
2217 #define TLSEXT_SIGALG_dsa_sha512 0x0602
2218 #define TLSEXT_SIGALG_dsa_sha224 0x0302
2219 #define TLSEXT_SIGALG_dsa_sha1 0x0202
2220 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840
2221 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841
2222 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
2223 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
2224 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
2226 #define TLSEXT_SIGALG_ed25519 0x0807
2227 #define TLSEXT_SIGALG_ed448 0x0808
2228 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256 0x081a
2229 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384 0x081b
2230 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512 0x081c
2232 /* Known PSK key exchange modes */
2233 #define TLSEXT_KEX_MODE_KE 0x00
2234 #define TLSEXT_KEX_MODE_KE_DHE 0x01
2237 * Internal representations of key exchange modes
2239 #define TLSEXT_KEX_MODE_FLAG_NONE 0
2240 #define TLSEXT_KEX_MODE_FLAG_KE 1
2241 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
2243 #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \
2244 s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
2246 /* A dummy signature value not valid for TLSv1.2 signature algs */
2247 #define TLSEXT_signature_rsa_pss 0x0101
2249 /* TLSv1.3 downgrade protection sentinel values */
2250 extern const unsigned char tls11downgrade
[8];
2251 extern const unsigned char tls12downgrade
[8];
2253 extern SSL3_ENC_METHOD ssl3_undef_enc_method
;
2255 __owur
const SSL_METHOD
*ssl_bad_method(int ver
);
2256 __owur
const SSL_METHOD
*sslv3_method(void);
2257 __owur
const SSL_METHOD
*sslv3_server_method(void);
2258 __owur
const SSL_METHOD
*sslv3_client_method(void);
2259 __owur
const SSL_METHOD
*tlsv1_method(void);
2260 __owur
const SSL_METHOD
*tlsv1_server_method(void);
2261 __owur
const SSL_METHOD
*tlsv1_client_method(void);
2262 __owur
const SSL_METHOD
*tlsv1_1_method(void);
2263 __owur
const SSL_METHOD
*tlsv1_1_server_method(void);
2264 __owur
const SSL_METHOD
*tlsv1_1_client_method(void);
2265 __owur
const SSL_METHOD
*tlsv1_2_method(void);
2266 __owur
const SSL_METHOD
*tlsv1_2_server_method(void);
2267 __owur
const SSL_METHOD
*tlsv1_2_client_method(void);
2268 __owur
const SSL_METHOD
*tlsv1_3_method(void);
2269 __owur
const SSL_METHOD
*tlsv1_3_server_method(void);
2270 __owur
const SSL_METHOD
*tlsv1_3_client_method(void);
2271 __owur
const SSL_METHOD
*dtlsv1_method(void);
2272 __owur
const SSL_METHOD
*dtlsv1_server_method(void);
2273 __owur
const SSL_METHOD
*dtlsv1_client_method(void);
2274 __owur
const SSL_METHOD
*dtls_bad_ver_client_method(void);
2275 __owur
const SSL_METHOD
*dtlsv1_2_method(void);
2276 __owur
const SSL_METHOD
*dtlsv1_2_server_method(void);
2277 __owur
const SSL_METHOD
*dtlsv1_2_client_method(void);
2279 extern const SSL3_ENC_METHOD TLSv1_enc_data
;
2280 extern const SSL3_ENC_METHOD TLSv1_1_enc_data
;
2281 extern const SSL3_ENC_METHOD TLSv1_2_enc_data
;
2282 extern const SSL3_ENC_METHOD TLSv1_3_enc_data
;
2283 extern const SSL3_ENC_METHOD SSLv3_enc_data
;
2284 extern const SSL3_ENC_METHOD DTLSv1_enc_data
;
2285 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data
;
2288 * Flags for SSL methods
2290 # define SSL_METHOD_NO_FIPS (1U<<0)
2291 # define SSL_METHOD_NO_SUITEB (1U<<1)
2293 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
2294 s_connect, enc_data) \
2295 const SSL_METHOD *func_name(void) \
2297 static const SSL_METHOD func_name##_data= { \
2301 ossl_ssl_connection_new, \
2302 ossl_ssl_connection_free, \
2303 ossl_ssl_connection_reset, \
2314 ssl3_renegotiate_check, \
2317 ssl3_dispatch_alert, \
2320 ssl3_get_cipher_by_char, \
2321 ssl3_put_cipher_by_char, \
2325 tls1_default_timeout, \
2327 ssl_undefined_void_function, \
2328 ssl3_callback_ctrl, \
2329 ssl3_ctx_callback_ctrl, \
2331 return &func_name##_data; \
2334 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
2335 const SSL_METHOD *func_name(void) \
2337 static const SSL_METHOD func_name##_data= { \
2339 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
2341 ossl_ssl_connection_new, \
2342 ossl_ssl_connection_free, \
2343 ossl_ssl_connection_reset, \
2354 ssl3_renegotiate_check, \
2357 ssl3_dispatch_alert, \
2360 ssl3_get_cipher_by_char, \
2361 ssl3_put_cipher_by_char, \
2365 ssl3_default_timeout, \
2367 ssl_undefined_void_function, \
2368 ssl3_callback_ctrl, \
2369 ssl3_ctx_callback_ctrl, \
2371 return &func_name##_data; \
2374 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
2375 s_connect, enc_data) \
2376 const SSL_METHOD *func_name(void) \
2378 static const SSL_METHOD func_name##_data= { \
2382 ossl_ssl_connection_new, \
2383 ossl_ssl_connection_free, \
2384 ossl_ssl_connection_reset, \
2395 ssl3_renegotiate_check, \
2397 dtls1_write_app_data_bytes, \
2398 dtls1_dispatch_alert, \
2401 ssl3_get_cipher_by_char, \
2402 ssl3_put_cipher_by_char, \
2406 dtls1_default_timeout, \
2408 ssl_undefined_void_function, \
2409 ssl3_callback_ctrl, \
2410 ssl3_ctx_callback_ctrl, \
2412 return &func_name##_data; \
2415 struct openssl_ssl_test_functions
{
2416 int (*p_ssl_init_wbio_buffer
) (SSL_CONNECTION
*s
);
2417 int (*p_ssl3_setup_buffers
) (SSL_CONNECTION
*s
);
2420 const char *ssl_protocol_to_string(int version
);
2422 /* Returns true if certificate and private key for 'idx' are present */
2423 static ossl_inline
int ssl_has_cert(const SSL_CONNECTION
*s
, int idx
)
2425 if (idx
< 0 || idx
>= SSL_PKEY_NUM
)
2427 return s
->cert
->pkeys
[idx
].x509
!= NULL
2428 && s
->cert
->pkeys
[idx
].privatekey
!= NULL
;
2431 static ossl_inline
void tls1_get_peer_groups(SSL_CONNECTION
*s
,
2432 const uint16_t **pgroups
,
2435 *pgroups
= s
->ext
.peer_supportedgroups
;
2436 *pgroupslen
= s
->ext
.peer_supportedgroups_len
;
2439 # ifndef OPENSSL_UNIT_TEST
2441 __owur
int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, int type
);
2442 __owur SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
);
2443 void ossl_ssl_connection_free(SSL
*ssl
);
2444 __owur
int ossl_ssl_connection_reset(SSL
*ssl
);
2446 __owur
int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
);
2447 __owur
int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
);
2448 void ssl_clear_cipher_ctx(SSL_CONNECTION
*s
);
2449 int ssl_clear_bad_session(SSL_CONNECTION
*s
);
2450 __owur CERT
*ssl_cert_new(void);
2451 __owur CERT
*ssl_cert_dup(CERT
*cert
);
2452 void ssl_cert_clear_certs(CERT
*c
);
2453 void ssl_cert_free(CERT
*c
);
2454 __owur
int ssl_generate_session_id(SSL_CONNECTION
*s
, SSL_SESSION
*ss
);
2455 __owur
int ssl_get_new_session(SSL_CONNECTION
*s
, int session
);
2456 __owur SSL_SESSION
*lookup_sess_in_cache(SSL_CONNECTION
*s
,
2457 const unsigned char *sess_id
,
2458 size_t sess_id_len
);
2459 __owur
int ssl_get_prev_session(SSL_CONNECTION
*s
, CLIENTHELLO_MSG
*hello
);
2460 __owur SSL_SESSION
*ssl_session_dup(const SSL_SESSION
*src
, int ticket
);
2461 __owur
int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
);
2462 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
2463 __owur
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2464 const SSL_CIPHER
*const *bp
);
2465 __owur
STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(SSL_CTX
*ctx
,
2466 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
,
2467 STACK_OF(SSL_CIPHER
) **cipher_list
,
2468 STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
2469 const char *rule_str
,
2471 __owur
int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
2473 __owur
int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
2474 STACK_OF(SSL_CIPHER
) **skp
,
2475 STACK_OF(SSL_CIPHER
) **scsvs
, int sslv2format
,
2477 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
);
2478 __owur
int ssl_cipher_get_evp_cipher(SSL_CTX
*ctx
, const SSL_CIPHER
*sslc
,
2479 const EVP_CIPHER
**enc
);
2480 __owur
int ssl_cipher_get_evp(SSL_CTX
*ctxc
, const SSL_SESSION
*s
,
2481 const EVP_CIPHER
**enc
, const EVP_MD
**md
,
2482 int *mac_pkey_type
, size_t *mac_secret_size
,
2483 SSL_COMP
**comp
, int use_etm
);
2484 __owur
int ssl_cipher_get_overhead(const SSL_CIPHER
*c
, size_t *mac_overhead
,
2485 size_t *int_overhead
, size_t *blocksize
,
2486 size_t *ext_overhead
);
2487 __owur
int ssl_cert_is_disabled(SSL_CTX
*ctx
, size_t idx
);
2488 __owur
const SSL_CIPHER
*ssl_get_cipher_by_char(SSL_CONNECTION
*ssl
,
2489 const unsigned char *ptr
,
2491 __owur
int ssl_cert_set0_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
,
2492 STACK_OF(X509
) *chain
);
2493 __owur
int ssl_cert_set1_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
,
2494 STACK_OF(X509
) *chain
);
2495 __owur
int ssl_cert_add0_chain_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
);
2496 __owur
int ssl_cert_add1_chain_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
);
2497 __owur
int ssl_cert_select_current(CERT
*c
, X509
*x
);
2498 __owur
int ssl_cert_set_current(CERT
*c
, long arg
);
2499 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
);
2501 __owur
int ssl_verify_cert_chain(SSL_CONNECTION
*s
, STACK_OF(X509
) *sk
);
2502 __owur
int ssl_build_cert_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, int flags
);
2503 __owur
int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
,
2505 __owur
int ssl_cert_get_cert_store(CERT
*c
, X509_STORE
**pstore
, int chain
);
2507 __owur
int ssl_security(const SSL_CONNECTION
*s
, int op
, int bits
, int nid
,
2509 __owur
int ssl_ctx_security(const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
2511 int ssl_get_security_level_bits(const SSL
*s
, const SSL_CTX
*ctx
, int *levelp
);
2513 __owur
int ssl_cert_lookup_by_nid(int nid
, size_t *pidx
);
2514 __owur
const SSL_CERT_LOOKUP
*ssl_cert_lookup_by_pkey(const EVP_PKEY
*pk
,
2516 __owur
const SSL_CERT_LOOKUP
*ssl_cert_lookup_by_idx(size_t idx
);
2518 int ssl_undefined_function(SSL
*s
);
2519 __owur
int ssl_undefined_void_function(void);
2520 __owur
int ssl_undefined_const_function(const SSL
*s
);
2521 __owur
int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
2522 const unsigned char **serverinfo
,
2523 size_t *serverinfo_length
);
2524 void ssl_set_masks(SSL_CONNECTION
*s
);
2525 __owur
STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*sc
);
2526 __owur
int ssl_x509err2alert(int type
);
2527 void ssl_sort_cipher_list(void);
2528 int ssl_load_ciphers(SSL_CTX
*ctx
);
2529 __owur
int ssl_setup_sig_algs(SSL_CTX
*ctx
);
2530 int ssl_load_groups(SSL_CTX
*ctx
);
2531 __owur
int ssl_fill_hello_random(SSL_CONNECTION
*s
, int server
,
2532 unsigned char *field
, size_t len
,
2534 __owur
int ssl_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *pms
,
2535 size_t pmslen
, int free_pms
);
2536 __owur EVP_PKEY
*ssl_generate_pkey(SSL_CONNECTION
*s
, EVP_PKEY
*pm
);
2537 __owur
int ssl_gensecret(SSL_CONNECTION
*s
, unsigned char *pms
, size_t pmslen
);
2538 __owur
int ssl_derive(SSL_CONNECTION
*s
, EVP_PKEY
*privkey
, EVP_PKEY
*pubkey
,
2540 __owur
int ssl_decapsulate(SSL_CONNECTION
*s
, EVP_PKEY
*privkey
,
2541 const unsigned char *ct
, size_t ctlen
,
2543 __owur
int ssl_encapsulate(SSL_CONNECTION
*s
, EVP_PKEY
*pubkey
,
2544 unsigned char **ctp
, size_t *ctlenp
,
2546 __owur EVP_PKEY
*ssl_dh_to_pkey(DH
*dh
);
2547 __owur
int ssl_set_tmp_ecdh_groups(uint16_t **pext
, size_t *pextlen
,
2549 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
);
2550 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
);
2552 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_id(uint32_t id
);
2553 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_std_name(const char *stdname
);
2554 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_char(const unsigned char *p
);
2555 __owur
int ssl3_put_cipher_by_char(const SSL_CIPHER
*c
, WPACKET
*pkt
,
2557 int ssl3_init_finished_mac(SSL_CONNECTION
*s
);
2558 __owur
int ssl3_setup_key_block(SSL_CONNECTION
*s
);
2559 __owur
int ssl3_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2560 void ssl3_cleanup_key_block(SSL_CONNECTION
*s
);
2561 __owur
int ssl3_do_write(SSL_CONNECTION
*s
, int type
);
2562 int ssl3_send_alert(SSL_CONNECTION
*s
, int level
, int desc
);
2563 __owur
int ssl3_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2564 unsigned char *p
, size_t len
,
2565 size_t *secret_size
);
2566 __owur
int ssl3_get_req_cert_type(SSL_CONNECTION
*s
, WPACKET
*pkt
);
2567 __owur
int ssl3_num_ciphers(void);
2568 __owur
const SSL_CIPHER
*ssl3_get_cipher(unsigned int u
);
2569 int ssl3_renegotiate(SSL
*ssl
);
2570 int ssl3_renegotiate_check(SSL
*ssl
, int initok
);
2571 void ssl3_digest_master_key_set_params(const SSL_SESSION
*session
,
2572 OSSL_PARAM params
[]);
2573 __owur
int ssl3_dispatch_alert(SSL
*s
);
2574 __owur
size_t ssl3_final_finish_mac(SSL_CONNECTION
*s
, const char *sender
,
2575 size_t slen
, unsigned char *p
);
2576 __owur
int ssl3_finish_mac(SSL_CONNECTION
*s
, const unsigned char *buf
,
2578 void ssl3_free_digest_list(SSL_CONNECTION
*s
);
2579 __owur
unsigned long ssl3_output_cert_chain(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2581 __owur
const SSL_CIPHER
*ssl3_choose_cipher(SSL_CONNECTION
*s
,
2582 STACK_OF(SSL_CIPHER
) *clnt
,
2583 STACK_OF(SSL_CIPHER
) *srvr
);
2584 __owur
int ssl3_digest_cached_records(SSL_CONNECTION
*s
, int keep
);
2585 __owur
int ssl3_new(SSL
*s
);
2586 void ssl3_free(SSL
*s
);
2587 __owur
int ssl3_read(SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
2588 __owur
int ssl3_peek(SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
2589 __owur
int ssl3_write(SSL
*s
, const void *buf
, size_t len
, size_t *written
);
2590 __owur
int ssl3_shutdown(SSL
*s
);
2591 int ssl3_clear(SSL
*s
);
2592 __owur
long ssl3_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
2593 __owur
long ssl3_ctx_ctrl(SSL_CTX
*s
, int cmd
, long larg
, void *parg
);
2594 __owur
long ssl3_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
2595 __owur
long ssl3_ctx_callback_ctrl(SSL_CTX
*s
, int cmd
, void (*fp
) (void));
2597 __owur
int ssl3_do_change_cipher_spec(SSL_CONNECTION
*s
);
2598 __owur OSSL_TIME
ssl3_default_timeout(void);
2600 __owur
int ssl3_set_handshake_header(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2602 __owur
int tls_close_construct_packet(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2603 __owur
int tls_setup_handshake(SSL_CONNECTION
*s
);
2604 __owur
int dtls1_set_handshake_header(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2605 __owur
int dtls1_close_construct_packet(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2606 __owur
int ssl3_handshake_write(SSL_CONNECTION
*s
);
2608 __owur
int ssl_allow_compression(SSL_CONNECTION
*s
);
2610 __owur
int ssl_version_supported(const SSL_CONNECTION
*s
, int version
,
2611 const SSL_METHOD
**meth
);
2613 __owur
int ssl_set_client_hello_version(SSL_CONNECTION
*s
);
2614 __owur
int ssl_check_version_downgrade(SSL_CONNECTION
*s
);
2615 __owur
int ssl_set_version_bound(int method_version
, int version
, int *bound
);
2616 __owur
int ssl_choose_server_version(SSL_CONNECTION
*s
, CLIENTHELLO_MSG
*hello
,
2618 __owur
int ssl_choose_client_version(SSL_CONNECTION
*s
, int version
,
2619 RAW_EXTENSION
*extensions
);
2620 __owur
int ssl_get_min_max_version(const SSL_CONNECTION
*s
, int *min_version
,
2621 int *max_version
, int *real_max
);
2623 __owur OSSL_TIME
tls1_default_timeout(void);
2624 __owur
int dtls1_do_write(SSL_CONNECTION
*s
, int type
);
2625 void dtls1_set_message_header(SSL_CONNECTION
*s
,
2628 size_t frag_off
, size_t frag_len
);
2630 int dtls1_write_app_data_bytes(SSL
*s
, int type
, const void *buf_
, size_t len
,
2633 __owur
int dtls1_read_failed(SSL_CONNECTION
*s
, int code
);
2634 __owur
int dtls1_buffer_message(SSL_CONNECTION
*s
, int ccs
);
2635 __owur
int dtls1_retransmit_message(SSL_CONNECTION
*s
, unsigned short seq
,
2637 __owur
int dtls1_get_queue_priority(unsigned short seq
, int is_ccs
);
2638 int dtls1_retransmit_buffered_messages(SSL_CONNECTION
*s
);
2639 void dtls1_clear_received_buffer(SSL_CONNECTION
*s
);
2640 void dtls1_clear_sent_buffer(SSL_CONNECTION
*s
);
2641 void dtls1_get_message_header(unsigned char *data
,
2642 struct hm_header_st
*msg_hdr
);
2643 __owur OSSL_TIME
dtls1_default_timeout(void);
2644 __owur OSSL_TIME
*dtls1_get_timeout(SSL_CONNECTION
*s
, OSSL_TIME
*timeleft
);
2645 __owur
int dtls1_check_timeout_num(SSL_CONNECTION
*s
);
2646 __owur
int dtls1_handle_timeout(SSL_CONNECTION
*s
);
2647 void dtls1_start_timer(SSL_CONNECTION
*s
);
2648 void dtls1_stop_timer(SSL_CONNECTION
*s
);
2649 __owur
int dtls1_is_timer_expired(SSL_CONNECTION
*s
);
2650 __owur
int dtls_raw_hello_verify_request(WPACKET
*pkt
, unsigned char *cookie
,
2652 __owur
size_t dtls1_min_mtu(SSL_CONNECTION
*s
);
2653 void dtls1_hm_fragment_free(hm_fragment
*frag
);
2654 __owur
int dtls1_query_mtu(SSL_CONNECTION
*s
);
2656 __owur
int tls1_new(SSL
*s
);
2657 void tls1_free(SSL
*s
);
2658 int tls1_clear(SSL
*s
);
2660 __owur
int dtls1_new(SSL
*s
);
2661 void dtls1_free(SSL
*s
);
2662 int dtls1_clear(SSL
*s
);
2663 long dtls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
2664 __owur
int dtls1_shutdown(SSL
*s
);
2666 __owur
int dtls1_dispatch_alert(SSL
*s
);
2668 __owur
int ssl_init_wbio_buffer(SSL_CONNECTION
*s
);
2669 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
);
2671 __owur
int tls1_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2672 __owur
int tls1_setup_key_block(SSL_CONNECTION
*s
);
2673 __owur
size_t tls1_final_finish_mac(SSL_CONNECTION
*s
, const char *str
,
2674 size_t slen
, unsigned char *p
);
2675 __owur
int tls1_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2676 unsigned char *p
, size_t len
,
2677 size_t *secret_size
);
2678 __owur
int tls13_setup_key_block(SSL_CONNECTION
*s
);
2679 __owur
size_t tls13_final_finish_mac(SSL_CONNECTION
*s
, const char *str
, size_t slen
,
2681 __owur
int tls13_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2682 __owur
int tls13_update_key(SSL_CONNECTION
*s
, int send
);
2683 __owur
int tls13_hkdf_expand(SSL_CONNECTION
*s
,
2685 const unsigned char *secret
,
2686 const unsigned char *label
, size_t labellen
,
2687 const unsigned char *data
, size_t datalen
,
2688 unsigned char *out
, size_t outlen
, int fatal
);
2689 __owur
int tls13_hkdf_expand_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
2691 const unsigned char *secret
,
2692 const unsigned char *label
, size_t labellen
,
2693 const unsigned char *data
, size_t datalen
,
2694 unsigned char *out
, size_t outlen
,
2696 __owur
int tls13_derive_key(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2697 const unsigned char *secret
, unsigned char *key
,
2699 __owur
int tls13_derive_iv(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2700 const unsigned char *secret
, unsigned char *iv
,
2702 __owur
int tls13_derive_finishedkey(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2703 const unsigned char *secret
,
2704 unsigned char *fin
, size_t finlen
);
2705 int tls13_generate_secret(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2706 const unsigned char *prevsecret
,
2707 const unsigned char *insecret
,
2709 unsigned char *outsecret
);
2710 __owur
int tls13_generate_handshake_secret(SSL_CONNECTION
*s
,
2711 const unsigned char *insecret
,
2712 size_t insecretlen
);
2713 __owur
int tls13_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2714 unsigned char *prev
, size_t prevlen
,
2715 size_t *secret_size
);
2716 __owur
int tls1_export_keying_material(SSL_CONNECTION
*s
,
2717 unsigned char *out
, size_t olen
,
2718 const char *label
, size_t llen
,
2719 const unsigned char *p
, size_t plen
,
2721 __owur
int tls13_export_keying_material(SSL_CONNECTION
*s
,
2722 unsigned char *out
, size_t olen
,
2723 const char *label
, size_t llen
,
2724 const unsigned char *context
,
2725 size_t contextlen
, int use_context
);
2726 __owur
int tls13_export_keying_material_early(SSL_CONNECTION
*s
,
2727 unsigned char *out
, size_t olen
,
2728 const char *label
, size_t llen
,
2729 const unsigned char *context
,
2731 __owur
int tls1_alert_code(int code
);
2732 __owur
int tls13_alert_code(int code
);
2733 __owur
int ssl3_alert_code(int code
);
2735 __owur
int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
);
2737 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
);
2739 __owur
const TLS_GROUP_INFO
*tls1_group_id_lookup(SSL_CTX
*ctx
, uint16_t curve_id
);
2740 __owur
int tls1_group_id2nid(uint16_t group_id
, int include_unknown
);
2741 __owur
uint16_t tls1_nid2group_id(int nid
);
2742 __owur
int tls1_check_group_id(SSL_CONNECTION
*s
, uint16_t group_id
,
2743 int check_own_curves
);
2744 __owur
uint16_t tls1_shared_group(SSL_CONNECTION
*s
, int nmatch
);
2745 __owur
int tls1_set_groups(uint16_t **pext
, size_t *pextlen
,
2746 int *curves
, size_t ncurves
);
2747 __owur
int tls1_set_groups_list(SSL_CTX
*ctx
, uint16_t **pext
, size_t *pextlen
,
2749 __owur EVP_PKEY
*ssl_generate_pkey_group(SSL_CONNECTION
*s
, uint16_t id
);
2750 __owur
int tls_valid_group(SSL_CONNECTION
*s
, uint16_t group_id
, int minversion
,
2751 int maxversion
, int isec
, int *okfortls13
);
2752 __owur EVP_PKEY
*ssl_generate_param_group(SSL_CONNECTION
*s
, uint16_t id
);
2753 void tls1_get_formatlist(SSL_CONNECTION
*s
, const unsigned char **pformats
,
2754 size_t *num_formats
);
2755 __owur
int tls1_check_ec_tmp_key(SSL_CONNECTION
*s
, unsigned long id
);
2757 __owur
int tls_group_allowed(SSL_CONNECTION
*s
, uint16_t curve
, int op
);
2758 void tls1_get_supported_groups(SSL_CONNECTION
*s
, const uint16_t **pgroups
,
2759 size_t *pgroupslen
);
2761 __owur
int tls1_set_server_sigalgs(SSL_CONNECTION
*s
);
2763 __owur SSL_TICKET_STATUS
tls_get_ticket_from_client(SSL_CONNECTION
*s
,
2764 CLIENTHELLO_MSG
*hello
,
2766 __owur SSL_TICKET_STATUS
tls_decrypt_ticket(SSL_CONNECTION
*s
,
2767 const unsigned char *etick
,
2769 const unsigned char *sess_id
,
2770 size_t sesslen
, SSL_SESSION
**psess
);
2772 __owur
int tls_use_ticket(SSL_CONNECTION
*s
);
2774 void ssl_set_sig_mask(uint32_t *pmask_a
, SSL_CONNECTION
*s
, int op
);
2776 __owur
int tls1_set_sigalgs_list(CERT
*c
, const char *str
, int client
);
2777 __owur
int tls1_set_raw_sigalgs(CERT
*c
, const uint16_t *psigs
, size_t salglen
,
2779 __owur
int tls1_set_sigalgs(CERT
*c
, const int *salg
, size_t salglen
,
2781 int tls1_check_chain(SSL_CONNECTION
*s
, X509
*x
, EVP_PKEY
*pk
,
2782 STACK_OF(X509
) *chain
, int idx
);
2783 void tls1_set_cert_validity(SSL_CONNECTION
*s
);
2785 # ifndef OPENSSL_NO_CT
2786 __owur
int ssl_validate_ct(SSL_CONNECTION
*s
);
2789 __owur EVP_PKEY
*ssl_get_auto_dh(SSL_CONNECTION
*s
);
2791 __owur
int ssl_security_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
, int vfy
,
2793 __owur
int ssl_security_cert_chain(SSL_CONNECTION
*s
, STACK_OF(X509
) *sk
,
2796 int tls_choose_sigalg(SSL_CONNECTION
*s
, int fatalerrs
);
2798 __owur EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
);
2799 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
);
2800 __owur
long ssl_get_algorithm2(SSL_CONNECTION
*s
);
2801 __owur
int tls12_copy_sigalgs(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2802 const uint16_t *psig
, size_t psiglen
);
2803 __owur
int tls1_save_u16(PACKET
*pkt
, uint16_t **pdest
, size_t *pdestlen
);
2804 __owur
int tls1_save_sigalgs(SSL_CONNECTION
*s
, PACKET
*pkt
, int cert
);
2805 __owur
int tls1_process_sigalgs(SSL_CONNECTION
*s
);
2806 __owur
int tls1_set_peer_legacy_sigalg(SSL_CONNECTION
*s
, const EVP_PKEY
*pkey
);
2807 __owur
int tls1_lookup_md(SSL_CTX
*ctx
, const SIGALG_LOOKUP
*lu
,
2808 const EVP_MD
**pmd
);
2809 __owur
size_t tls12_get_psigalgs(SSL_CONNECTION
*s
, int sent
,
2810 const uint16_t **psigs
);
2811 __owur
int tls_check_sigalg_curve(const SSL_CONNECTION
*s
, int curve
);
2812 __owur
int tls12_check_peer_sigalg(SSL_CONNECTION
*s
, uint16_t, EVP_PKEY
*pkey
);
2813 __owur
int ssl_set_client_disabled(SSL_CONNECTION
*s
);
2814 __owur
int ssl_cipher_disabled(const SSL_CONNECTION
*s
, const SSL_CIPHER
*c
,
2817 __owur
int ssl_handshake_hash(SSL_CONNECTION
*s
,
2818 unsigned char *out
, size_t outlen
,
2820 __owur
const EVP_MD
*ssl_md(SSL_CTX
*ctx
, int idx
);
2821 __owur
const EVP_MD
*ssl_handshake_md(SSL_CONNECTION
*s
);
2822 __owur
const EVP_MD
*ssl_prf_md(SSL_CONNECTION
*s
);
2825 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2826 * with |ssl|, if logging is enabled. It returns one on success and zero on
2827 * failure. The entry is identified by the first 8 bytes of
2828 * |encrypted_premaster|.
2830 __owur
int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*s
,
2831 const uint8_t *encrypted_premaster
,
2832 size_t encrypted_premaster_len
,
2833 const uint8_t *premaster
,
2834 size_t premaster_len
);
2837 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2838 * logging is available. It returns one on success and zero on failure. It tags
2839 * the entry with |label|.
2841 __owur
int ssl_log_secret(SSL_CONNECTION
*s
, const char *label
,
2842 const uint8_t *secret
, size_t secret_len
);
2844 #define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2845 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
2846 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2847 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2848 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2849 #define CLIENT_APPLICATION_N_LABEL "CLIENT_TRAFFIC_SECRET_N"
2850 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2851 #define SERVER_APPLICATION_N_LABEL "SERVER_TRAFFIC_SECRET_N"
2852 #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET"
2853 #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET"
2855 __owur
int srp_generate_server_master_secret(SSL_CONNECTION
*s
);
2856 __owur
int srp_generate_client_master_secret(SSL_CONNECTION
*s
);
2857 __owur
int srp_verify_server_param(SSL_CONNECTION
*s
);
2859 /* statem/statem_srvr.c */
2861 __owur
int send_certificate_request(SSL_CONNECTION
*s
);
2863 /* statem/extensions_cust.c */
2865 custom_ext_method
*custom_ext_find(const custom_ext_methods
*exts
,
2866 ENDPOINT role
, unsigned int ext_type
,
2869 void custom_ext_init(custom_ext_methods
*meths
);
2871 __owur
int custom_ext_parse(SSL_CONNECTION
*s
, unsigned int context
,
2872 unsigned int ext_type
,
2873 const unsigned char *ext_data
, size_t ext_size
,
2874 X509
*x
, size_t chainidx
);
2875 __owur
int custom_ext_add(SSL_CONNECTION
*s
, int context
, WPACKET
*pkt
, X509
*x
,
2876 size_t chainidx
, int maxversion
);
2878 __owur
int custom_exts_copy(custom_ext_methods
*dst
,
2879 const custom_ext_methods
*src
);
2880 __owur
int custom_exts_copy_flags(custom_ext_methods
*dst
,
2881 const custom_ext_methods
*src
);
2882 void custom_exts_free(custom_ext_methods
*exts
);
2884 void ssl_comp_free_compression_methods_int(void);
2887 void ssl_ctx_system_config(SSL_CTX
*ctx
);
2889 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
2891 const char *properties
);
2892 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
);
2893 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
);
2894 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
2896 const char *properties
);
2897 int ssl_evp_md_up_ref(const EVP_MD
*md
);
2898 void ssl_evp_md_free(const EVP_MD
*md
);
2900 int tls_provider_set_tls_params(SSL_CONNECTION
*s
, EVP_CIPHER_CTX
*ctx
,
2901 const EVP_CIPHER
*ciph
,
2904 void tls_engine_finish(ENGINE
*e
);
2905 const EVP_CIPHER
*tls_get_cipher_from_engine(int nid
);
2906 const EVP_MD
*tls_get_digest_from_engine(int nid
);
2907 int tls_engine_load_ssl_client_cert(SSL_CONNECTION
*s
, X509
**px509
,
2909 int ssl_hmac_old_new(SSL_HMAC
*ret
);
2910 void ssl_hmac_old_free(SSL_HMAC
*ctx
);
2911 int ssl_hmac_old_init(SSL_HMAC
*ctx
, void *key
, size_t len
, char *md
);
2912 int ssl_hmac_old_update(SSL_HMAC
*ctx
, const unsigned char *data
, size_t len
);
2913 int ssl_hmac_old_final(SSL_HMAC
*ctx
, unsigned char *md
, size_t *len
);
2914 size_t ssl_hmac_old_size(const SSL_HMAC
*ctx
);
2916 int ssl_ctx_srp_ctx_free_intern(SSL_CTX
*ctx
);
2917 int ssl_ctx_srp_ctx_init_intern(SSL_CTX
*ctx
);
2918 int ssl_srp_ctx_free_intern(SSL_CONNECTION
*s
);
2919 int ssl_srp_ctx_init_intern(SSL_CONNECTION
*s
);
2921 int ssl_srp_calc_a_param_intern(SSL_CONNECTION
*s
);
2922 int ssl_srp_server_param_with_username_intern(SSL_CONNECTION
*s
, int *ad
);
2924 void ssl_session_calculate_timeout(SSL_SESSION
*ss
);
2926 # else /* OPENSSL_UNIT_TEST */
2928 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2929 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2933 /* Some helper routines to support TSAN operations safely */
2934 static ossl_unused ossl_inline
int ssl_tsan_lock(const SSL_CTX
*ctx
)
2936 #ifdef TSAN_REQUIRES_LOCKING
2937 if (!CRYPTO_THREAD_write_lock(ctx
->tsan_lock
))
2943 static ossl_unused ossl_inline
void ssl_tsan_unlock(const SSL_CTX
*ctx
)
2945 #ifdef TSAN_REQUIRES_LOCKING
2946 CRYPTO_THREAD_unlock(ctx
->tsan_lock
);
2950 static ossl_unused ossl_inline
void ssl_tsan_counter(const SSL_CTX
*ctx
,
2951 TSAN_QUALIFIER
int *stat
)
2953 if (ssl_tsan_lock(ctx
)) {
2955 ssl_tsan_unlock(ctx
);