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/bio.h>
23 # include <openssl/comp.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_compress_certificate,
775 TLSEXT_IDX_early_data,
776 TLSEXT_IDX_certificate_authorities,
779 /* Dummy index - must always be the last entry */
780 TLSEXT_IDX_num_builtins
783 DEFINE_LHASH_OF_EX(SSL_SESSION);
784 /* Needed in ssl_cert.c */
785 DEFINE_LHASH_OF_EX(X509_NAME);
787 # define TLSEXT_KEYNAME_LENGTH 16
788 # define TLSEXT_TICK_KEY_LENGTH 32
790 typedef struct ssl_ctx_ext_secure_st {
791 unsigned char tick_hmac_key[TLSEXT_TICK_KEY_LENGTH];
792 unsigned char tick_aes_key[TLSEXT_TICK_KEY_LENGTH];
793 } SSL_CTX_EXT_SECURE;
796 * Helper function for HMAC
797 * The structure should be considered opaque, it will change once the low
798 * level deprecated calls are removed. At that point it can be replaced
799 * by EVP_MAC_CTX and most of the functions converted to macros or inlined
802 typedef struct ssl_hmac_st {
804 # ifndef OPENSSL_NO_DEPRECATED_3_0
809 SSL_HMAC *ssl_hmac_new(const SSL_CTX *ctx);
810 void ssl_hmac_free(SSL_HMAC *ctx);
811 # ifndef OPENSSL_NO_DEPRECATED_3_0
812 HMAC_CTX *ssl_hmac_get0_HMAC_CTX(SSL_HMAC *ctx);
814 EVP_MAC_CTX *ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC *ctx);
815 int ssl_hmac_init(SSL_HMAC *ctx, void *key, size_t len, char *md);
816 int ssl_hmac_update(SSL_HMAC *ctx, const unsigned char *data, size_t len);
817 int ssl_hmac_final(SSL_HMAC *ctx, unsigned char *md, size_t *len,
819 size_t ssl_hmac_size(const SSL_HMAC *ctx);
821 int ssl_get_EC_curve_nid(const EVP_PKEY *pkey);
822 __owur int tls13_set_encoded_pub_key(EVP_PKEY *pkey,
823 const unsigned char *enckey,
826 typedef struct tls_group_info_st {
827 char *tlsname; /* Curve Name as in TLS specs */
828 char *realname; /* Curve Name according to provider */
829 char *algorithm; /* Algorithm name to fetch */
830 unsigned int secbits; /* Bits of security (from SP800-57) */
831 uint16_t group_id; /* Group ID */
832 int mintls; /* Minimum TLS version, -1 unsupported */
833 int maxtls; /* Maximum TLS version (or 0 for undefined) */
834 int mindtls; /* Minimum DTLS version, -1 unsupported */
835 int maxdtls; /* Maximum DTLS version (or 0 for undefined) */
836 char is_kem; /* Mode for this Group: 0 is KEX, 1 is KEM */
840 # define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */
841 # define TLS_GROUP_CURVE_PRIME 0x00000001U
842 # define TLS_GROUP_CURVE_CHAR2 0x00000002U
843 # define TLS_GROUP_CURVE_CUSTOM 0x00000004U
844 # define TLS_GROUP_FFDHE 0x00000008U
845 # define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U
847 # define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3)
850 OSSL_LIB_CTX *libctx;
852 const SSL_METHOD *method;
853 STACK_OF(SSL_CIPHER) *cipher_list;
854 /* same as above but sorted for lookup */
855 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
856 /* TLSv1.3 specific ciphersuites */
857 STACK_OF(SSL_CIPHER) *tls13_ciphersuites;
858 struct x509_store_st /* X509_STORE */ *cert_store;
859 LHASH_OF(SSL_SESSION) *sessions;
861 * Most session-ids that will be cached, default is
862 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
864 size_t session_cache_size;
865 struct ssl_session_st *session_cache_head;
866 struct ssl_session_st *session_cache_tail;
868 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
869 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
870 * means only SSL_accept will cache SSL_SESSIONS.
872 uint32_t session_cache_mode;
874 * If timeout is not 0, it is the default timeout value set when
875 * SSL_new() is called. This has been put in to make life easier to set
878 OSSL_TIME session_timeout;
880 * If this callback is not null, it will be called each time a session id
881 * is added to the cache. If this function returns 1, it means that the
882 * callback will do a SSL_SESSION_free() when it has finished using it.
883 * Otherwise, on 0, it means the callback has finished with it. If
884 * remove_session_cb is not null, it will be called when a session-id is
885 * removed from the cache. After the call, OpenSSL will
886 * SSL_SESSION_free() it.
888 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
889 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
890 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
891 const unsigned char *data, int len,
894 TSAN_QUALIFIER int sess_connect; /* SSL new conn - started */
895 TSAN_QUALIFIER int sess_connect_renegotiate; /* SSL reneg - requested */
896 TSAN_QUALIFIER int sess_connect_good; /* SSL new conne/reneg - finished */
897 TSAN_QUALIFIER int sess_accept; /* SSL new accept - started */
898 TSAN_QUALIFIER int sess_accept_renegotiate; /* SSL reneg - requested */
899 TSAN_QUALIFIER int sess_accept_good; /* SSL accept/reneg - finished */
900 TSAN_QUALIFIER int sess_miss; /* session lookup misses */
901 TSAN_QUALIFIER int sess_timeout; /* reuse attempt on timeouted session */
902 TSAN_QUALIFIER int sess_cache_full; /* session removed due to full cache */
903 TSAN_QUALIFIER int sess_hit; /* session reuse actually done */
904 TSAN_QUALIFIER int sess_cb_hit; /* session-id that was not in
905 * the cache was passed back via
906 * the callback. This indicates
907 * that the application is
908 * supplying session-id's from
909 * other processes - spooky
912 #ifdef TSAN_REQUIRES_LOCKING
913 CRYPTO_RWLOCK *tsan_lock;
916 CRYPTO_REF_COUNT references;
918 /* if defined, these override the X509_verify_cert() calls */
919 int (*app_verify_callback) (X509_STORE_CTX *, void *);
920 void *app_verify_arg;
922 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
923 * ('app_verify_callback' was called with just one argument)
926 /* Default password callback. */
927 pem_password_cb *default_passwd_callback;
929 /* Default password callback user data. */
930 void *default_passwd_callback_userdata;
932 /* get client cert callback */
933 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
935 /* cookie generate callback */
936 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
937 unsigned int *cookie_len);
939 /* verify cookie callback */
940 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
941 unsigned int cookie_len);
943 /* TLS1.3 app-controlled cookie generate callback */
944 int (*gen_stateless_cookie_cb) (SSL *ssl, unsigned char *cookie,
947 /* TLS1.3 verify app-controlled cookie callback */
948 int (*verify_stateless_cookie_cb) (SSL *ssl, const unsigned char *cookie,
951 CRYPTO_EX_DATA ex_data;
953 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
954 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3-sha1' */
956 STACK_OF(X509) *extra_certs;
957 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
959 /* Default values used when no per-SSL value is defined follow */
961 /* used if SSL's info_callback is NULL */
962 void (*info_callback) (const SSL *ssl, int type, int val);
965 * What we put in certificate_authorities extension for TLS 1.3
966 * (ClientHello and CertificateRequest) or just client cert requests for
967 * earlier versions. If client_ca_names is populated then it is only used
968 * for client cert requests, and in preference to ca_names.
970 STACK_OF(X509_NAME) *ca_names;
971 STACK_OF(X509_NAME) *client_ca_names;
974 * Default values to use in SSL structures follow (these are copied by
980 int min_proto_version;
981 int max_proto_version;
982 size_t max_cert_list;
984 struct cert_st /* CERT */ *cert;
987 /* callback that allows applications to peek at protocol messages */
988 void (*msg_callback) (int write_p, int version, int content_type,
989 const void *buf, size_t len, SSL *ssl, void *arg);
990 void *msg_callback_arg;
992 uint32_t verify_mode;
993 size_t sid_ctx_length;
994 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
995 /* called 'verify_callback' in the SSL */
996 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
998 /* Default generate session ID callback. */
999 GEN_SESSION_CB generate_session_id;
1001 X509_VERIFY_PARAM *param;
1005 # ifndef OPENSSL_NO_CT
1006 CTLOG_STORE *ctlog_store; /* CT Log Store */
1008 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1009 * If they are not, the connection should be aborted.
1011 ssl_ct_validation_cb ct_validation_callback;
1012 void *ct_validation_callback_arg;
1016 * If we're using more than one pipeline how should we divide the data
1017 * up between the pipes?
1019 size_t split_send_fragment;
1021 * Maximum amount of data to send in one fragment. actual record size can
1022 * be more than this due to padding and MAC overheads.
1024 size_t max_send_fragment;
1026 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1027 size_t max_pipelines;
1029 /* The default read buffer length to use (0 means not set) */
1030 size_t default_read_buf_len;
1032 # ifndef OPENSSL_NO_ENGINE
1034 * Engine to pass requests for client certs to
1036 ENGINE *client_cert_engine;
1039 /* ClientHello callback. Mostly for extensions, but not entirely. */
1040 SSL_client_hello_cb_fn client_hello_cb;
1041 void *client_hello_cb_arg;
1043 /* TLS extensions. */
1045 /* TLS extensions servername callback */
1046 int (*servername_cb) (SSL *, int *, void *);
1047 void *servername_arg;
1048 /* RFC 4507 session ticket keys */
1049 unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH];
1050 SSL_CTX_EXT_SECURE *secure;
1051 # ifndef OPENSSL_NO_DEPRECATED_3_0
1052 /* Callback to support customisation of ticket key setting */
1053 int (*ticket_key_cb) (SSL *ssl,
1054 unsigned char *name, unsigned char *iv,
1055 EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc);
1057 int (*ticket_key_evp_cb) (SSL *ssl,
1058 unsigned char *name, unsigned char *iv,
1059 EVP_CIPHER_CTX *ectx, EVP_MAC_CTX *hctx,
1062 /* certificate status request info */
1063 /* Callback for status request */
1064 int (*status_cb) (SSL *ssl, void *arg);
1066 /* ext status type used for CSR extension (OCSP Stapling) */
1068 /* RFC 4366 Maximum Fragment Length Negotiation */
1069 uint8_t max_fragment_len_mode;
1071 /* EC extension values inherited by SSL structure */
1072 size_t ecpointformats_len;
1073 unsigned char *ecpointformats;
1075 size_t supportedgroups_len;
1076 uint16_t *supportedgroups;
1078 uint16_t *supported_groups_default;
1079 size_t supported_groups_default_len;
1081 * ALPN information (we are in the process of transitioning from NPN to
1086 * For a server, this contains a callback function that allows the
1087 * server to select the protocol for the connection.
1088 * out: on successful return, this must point to the raw protocol
1089 * name (without the length prefix).
1090 * outlen: on successful return, this contains the length of |*out|.
1091 * in: points to the client's list of supported protocols in
1093 * inlen: the length of |in|.
1095 int (*alpn_select_cb) (SSL *s,
1096 const unsigned char **out,
1097 unsigned char *outlen,
1098 const unsigned char *in,
1099 unsigned int inlen, void *arg);
1100 void *alpn_select_cb_arg;
1103 * For a client, this contains the list of supported protocols in wire
1106 unsigned char *alpn;
1109 # ifndef OPENSSL_NO_NEXTPROTONEG
1110 /* Next protocol negotiation information */
1113 * For a server, this contains a callback function by which the set of
1114 * advertised protocols can be provided.
1116 SSL_CTX_npn_advertised_cb_func npn_advertised_cb;
1117 void *npn_advertised_cb_arg;
1119 * For a client, this contains a callback function that selects the next
1120 * protocol from the list provided by the server.
1122 SSL_CTX_npn_select_cb_func npn_select_cb;
1123 void *npn_select_cb_arg;
1126 unsigned char cookie_hmac_key[SHA256_DIGEST_LENGTH];
1129 # ifndef OPENSSL_NO_PSK
1130 SSL_psk_client_cb_func psk_client_callback;
1131 SSL_psk_server_cb_func psk_server_callback;
1133 SSL_psk_find_session_cb_func psk_find_session_cb;
1134 SSL_psk_use_session_cb_func psk_use_session_cb;
1136 # ifndef OPENSSL_NO_SRP
1137 SRP_CTX srp_ctx; /* ctx for SRP authentication */
1140 /* Shared DANE context */
1141 struct dane_ctx_st dane;
1143 # ifndef OPENSSL_NO_SRTP
1144 /* SRTP profiles we are willing to do from RFC 5764 */
1145 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1148 * Callback for disabling session caching and ticket support on a session
1149 * basis, depending on the chosen cipher.
1151 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1153 CRYPTO_RWLOCK *lock;
1156 * Callback for logging key material for use with debugging tools like
1157 * Wireshark. The callback should log `line` followed by a newline.
1159 SSL_CTX_keylog_cb_func keylog_callback;
1162 * The maximum number of bytes advertised in session tickets that can be
1163 * sent as early data.
1165 uint32_t max_early_data;
1168 * The maximum number of bytes of early data that a server will tolerate
1169 * (which should be at least as much as max_early_data).
1171 uint32_t recv_max_early_data;
1173 /* TLS1.3 padding callback */
1174 size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg);
1175 void *record_padding_arg;
1176 size_t block_padding;
1178 /* Session ticket appdata */
1179 SSL_CTX_generate_session_ticket_fn generate_ticket_cb;
1180 SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb;
1181 void *ticket_cb_data;
1183 /* The number of TLS1.3 tickets to automatically send */
1186 /* Callback to determine if early_data is acceptable or not */
1187 SSL_allow_early_data_cb_fn allow_early_data_cb;
1188 void *allow_early_data_cb_data;
1190 /* Do we advertise Post-handshake auth support? */
1193 /* Callback for SSL async handling */
1194 SSL_async_callback_fn async_cb;
1199 int ssl_mac_pkey_id[SSL_MD_NUM_IDX];
1200 const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX];
1201 const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX];
1202 size_t ssl_mac_secret_size[SSL_MD_NUM_IDX];
1204 /* Cache of all sigalgs we know and whether they are available or not */
1205 struct sigalg_lookup_st *sigalg_lookup_cache;
1207 TLS_GROUP_INFO *group_list;
1208 size_t group_list_len;
1209 size_t group_list_max_len;
1211 /* masks of disabled algorithms */
1212 uint32_t disabled_enc_mask;
1213 uint32_t disabled_mac_mask;
1214 uint32_t disabled_mkey_mask;
1215 uint32_t disabled_auth_mask;
1217 #ifndef OPENSSL_NO_COMP_ALG
1218 /* certificate compression preferences */
1219 int cert_comp_prefs[TLSEXT_comp_cert_limit];
1223 typedef struct cert_pkey_st CERT_PKEY;
1225 #define SSL_TYPE_SSL_CONNECTION 0
1226 #define SSL_TYPE_QUIC_CONNECTION 1
1227 #define SSL_TYPE_QUIC_STREAM 2
1232 const SSL_METHOD *method;
1233 CRYPTO_REF_COUNT references;
1234 CRYPTO_RWLOCK *lock;
1235 /* extra application data */
1236 CRYPTO_EX_DATA ex_data;
1239 struct ssl_connection_st {
1240 /* type identifier and common data */
1242 #ifndef OPENSSL_NO_QUIC
1243 /* pointer to parent SSL of QUIC_CONNECTION or self */
1244 struct ssl_st *user_ssl;
1247 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
1252 * There are 2 BIO's even though they are normally both the same. This
1253 * is so data can be read and written to different handlers
1255 /* used by SSL_read */
1257 /* used by SSL_write */
1259 /* used during session-id reuse to concatenate messages */
1262 * This holds a variable that indicates what we were doing when a 0 or -1
1263 * is returned. This is needed for non-blocking IO so we know what
1264 * request needs re-doing when in SSL_accept or SSL_connect
1267 int (*handshake_func) (SSL *);
1269 * Imagine that here's a boolean member "init" that is switched as soon
1270 * as SSL_set_{accept/connect}_state is called for the first time, so
1271 * that "state" and "handshake_func" are properly initialized. But as
1272 * handshake_func is == 0 until then, we use this test instead of an
1275 /* are we the server side? */
1278 * Generate a new session or reuse an old one.
1279 * NB: For servers, the 'new' session may actually be a previously
1280 * cached session or even the previous session unless
1281 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1284 /* don't send shutdown packets */
1286 /* we have shut things down, 0x01 sent, 0x02 for received */
1290 SSL_EARLY_DATA_STATE early_data_state;
1291 BUF_MEM *init_buf; /* buffer used during init */
1292 void *init_msg; /* pointer to handshake message body, set by
1293 * ssl3_get_message() */
1294 size_t init_num; /* amount read/written */
1295 size_t init_off; /* amount read/written */
1299 unsigned char server_random[SSL3_RANDOM_SIZE];
1300 unsigned char client_random[SSL3_RANDOM_SIZE];
1302 /* used during startup, digest all incoming/outgoing packets */
1303 BIO *handshake_buffer;
1305 * When handshake digest is determined, buffer is hashed and
1306 * freed and MD_CTX for the required digest is stored here.
1308 EVP_MD_CTX *handshake_dgst;
1310 * Set whenever an expected ChangeCipherSpec message is processed.
1311 * Unset when the peer's Finished message is received.
1312 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1314 int change_cipher_spec;
1318 * we allow one fatal and one warning alert to be outstanding, send close
1319 * alert via the warning alert
1322 unsigned char send_alert[2];
1324 * This flag is set when we should renegotiate ASAP, basically when there
1325 * is no more data in the read or write buffers
1328 int total_renegotiations;
1329 int num_renegotiations;
1330 int in_read_app_data;
1332 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1333 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1334 size_t finish_md_len;
1335 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1336 size_t peer_finish_md_len;
1337 size_t message_size;
1339 /* used to hold the new cipher we are going to use */
1340 const SSL_CIPHER *new_cipher;
1341 EVP_PKEY *pkey; /* holds short lived key exchange key */
1342 /* used for certificate requests */
1344 /* Certificate types in certificate request message. */
1347 /* Certificate authorities list peer sent */
1348 STACK_OF(X509_NAME) *peer_ca_names;
1349 size_t key_block_length;
1350 unsigned char *key_block;
1351 const EVP_CIPHER *new_sym_enc;
1352 const EVP_MD *new_hash;
1353 int new_mac_pkey_type;
1354 size_t new_mac_secret_size;
1355 # ifndef OPENSSL_NO_COMP
1356 const SSL_COMP *new_compression;
1358 char *new_compression;
1361 /* Raw values of the cipher list from a client */
1362 unsigned char *ciphers_raw;
1363 size_t ciphers_rawlen;
1364 /* Temporary storage for premaster secret */
1367 # ifndef OPENSSL_NO_PSK
1368 /* Temporary storage for PSK key */
1372 /* Signature algorithm we actually use */
1373 const struct sigalg_lookup_st *sigalg;
1374 /* Pointer to certificate we use */
1377 * signature algorithms peer reports: e.g. supported signature
1378 * algorithms extension for server or as part of a certificate
1379 * request for client.
1380 * Keep track of the algorithms for TLS and X.509 usage separately.
1382 uint16_t *peer_sigalgs;
1383 uint16_t *peer_cert_sigalgs;
1384 /* Size of above arrays */
1385 size_t peer_sigalgslen;
1386 size_t peer_cert_sigalgslen;
1387 /* Sigalg peer actually uses */
1388 const struct sigalg_lookup_st *peer_sigalg;
1390 * Set if corresponding CERT_PKEY can be used with current
1391 * SSL session: e.g. appropriate curve, signature algorithms etc.
1392 * If zero it can't be used at all.
1394 uint32_t valid_flags[SSL_PKEY_NUM];
1396 * For servers the following masks are for the key and auth algorithms
1397 * that are supported by the certs below. For clients they are masks of
1398 * *disabled* algorithms based on the current session.
1403 * The following are used by the client to see if a cipher is allowed or
1404 * not. It contains the minimum and maximum version the client's using
1405 * based on what it knows so far.
1411 /* Connection binding to prevent renegotiation attacks */
1412 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1413 size_t previous_client_finished_len;
1414 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1415 size_t previous_server_finished_len;
1416 int send_connection_binding;
1418 # ifndef OPENSSL_NO_NEXTPROTONEG
1420 * Set if we saw the Next Protocol Negotiation extension from our peer.
1426 * ALPN information (we are in the process of transitioning from NPN to
1431 * In a server these point to the selected ALPN protocol after the
1432 * ClientHello has been processed. In a client these contain the protocol
1433 * that the server selected once the ServerHello has been processed.
1435 unsigned char *alpn_selected;
1436 size_t alpn_selected_len;
1437 /* used by the server to know what options were proposed */
1438 unsigned char *alpn_proposed;
1439 size_t alpn_proposed_len;
1440 /* used by the client to know if it actually sent alpn */
1444 * This is set to true if we believe that this is a version of Safari
1445 * running on OS X 10.6 or newer. We wish to know this because Safari on
1446 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1448 char is_probably_safari;
1451 * Track whether we did a key exchange this handshake or not, so
1452 * SSL_get_negotiated_group() knows whether to fall back to the
1453 * value in the SSL_SESSION.
1456 /* For clients: peer temporary key */
1457 /* The group_id for the key exchange key */
1463 struct dtls1_state_st *d1; /* DTLSv1 variables */
1464 /* callback that allows applications to peek at protocol messages */
1465 void (*msg_callback) (int write_p, int version, int content_type,
1466 const void *buf, size_t len, SSL *ssl, void *arg);
1467 void *msg_callback_arg;
1468 int hit; /* reusing a previous session */
1469 X509_VERIFY_PARAM *param;
1470 /* Per connection DANE state */
1473 STACK_OF(SSL_CIPHER) *peer_ciphers;
1474 STACK_OF(SSL_CIPHER) *cipher_list;
1475 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1476 /* TLSv1.3 specific ciphersuites */
1477 STACK_OF(SSL_CIPHER) *tls13_ciphersuites;
1479 * These are the ones being used, the ones in SSL_SESSION are the ones to
1480 * be 'copied' into these ones
1484 * The TLS1.3 secrets.
1486 unsigned char early_secret[EVP_MAX_MD_SIZE];
1487 unsigned char handshake_secret[EVP_MAX_MD_SIZE];
1488 unsigned char master_secret[EVP_MAX_MD_SIZE];
1489 unsigned char resumption_master_secret[EVP_MAX_MD_SIZE];
1490 unsigned char client_finished_secret[EVP_MAX_MD_SIZE];
1491 unsigned char server_finished_secret[EVP_MAX_MD_SIZE];
1492 unsigned char server_finished_hash[EVP_MAX_MD_SIZE];
1493 unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE];
1494 unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE];
1495 unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE];
1496 unsigned char exporter_master_secret[EVP_MAX_MD_SIZE];
1497 unsigned char early_exporter_master_secret[EVP_MAX_MD_SIZE];
1501 /* This is used to hold the server certificate used */
1502 struct cert_st /* CERT */ *cert;
1505 * The hash of all messages prior to the CertificateVerify, and the length
1508 unsigned char cert_verify_hash[EVP_MAX_MD_SIZE];
1509 size_t cert_verify_hash_len;
1511 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1512 enum {SSL_HRR_NONE = 0, SSL_HRR_PENDING, SSL_HRR_COMPLETE}
1513 hello_retry_request;
1516 * the session_id_context is used to ensure sessions are only reused in
1517 * the appropriate context
1519 size_t sid_ctx_length;
1520 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1521 /* This can also be in the session once a session is established */
1522 SSL_SESSION *session;
1523 /* TLSv1.3 PSK session */
1524 SSL_SESSION *psksession;
1525 unsigned char *psksession_id;
1526 size_t psksession_id_len;
1527 /* Default generate session ID callback. */
1528 GEN_SESSION_CB generate_session_id;
1530 * The temporary TLSv1.3 session id. This isn't really a session id at all
1531 * but is a random value sent in the legacy session id field.
1533 unsigned char tmp_session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
1534 size_t tmp_session_id_len;
1537 * 0 don't care about verify failure.
1538 * 1 fail if verify fails
1540 uint32_t verify_mode;
1541 /* fail if callback returns 0 */
1542 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1543 /* optional informational callback */
1544 void (*info_callback) (const SSL *ssl, int type, int val);
1545 /* error bytes to be written */
1549 # ifndef OPENSSL_NO_PSK
1550 SSL_psk_client_cb_func psk_client_callback;
1551 SSL_psk_server_cb_func psk_server_callback;
1553 SSL_psk_find_session_cb_func psk_find_session_cb;
1554 SSL_psk_use_session_cb_func psk_use_session_cb;
1556 /* Verified chain of peer */
1557 STACK_OF(X509) *verified_chain;
1560 * What we put in certificate_authorities extension for TLS 1.3
1561 * (ClientHello and CertificateRequest) or just client cert requests for
1562 * earlier versions. If client_ca_names is populated then it is only used
1563 * for client cert requests, and in preference to ca_names.
1565 STACK_OF(X509_NAME) *ca_names;
1566 STACK_OF(X509_NAME) *client_ca_names;
1567 /* protocol behaviour */
1571 int min_proto_version;
1572 int max_proto_version;
1573 size_t max_cert_list;
1576 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1577 * secret and SSLv3/TLS (<=1.2) rollback check
1581 * If we're using more than one pipeline how should we divide the data
1582 * up between the pipes?
1584 size_t split_send_fragment;
1586 * Maximum amount of data to send in one fragment. actual record size can
1587 * be more than this due to padding and MAC overheads.
1589 size_t max_send_fragment;
1590 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1591 size_t max_pipelines;
1594 /* Built-in extension flags */
1595 uint8_t extflags[TLSEXT_IDX_num_builtins];
1596 /* TLS extension debug callback */
1597 void (*debug_cb)(SSL *s, int client_server, int type,
1598 const unsigned char *data, int len, void *arg);
1601 /* certificate status request info */
1602 /* Status type or -1 if no status type */
1604 /* Raw extension data, if seen */
1605 unsigned char *scts;
1606 /* Length of raw extension data, if seen */
1608 /* Expect OCSP CertificateStatus message */
1609 int status_expected;
1612 /* OCSP status request only */
1613 STACK_OF(OCSP_RESPID) *ids;
1614 X509_EXTENSIONS *exts;
1615 /* OCSP response received or to be sent */
1616 unsigned char *resp;
1620 /* RFC4507 session ticket expected to be received or sent */
1621 int ticket_expected;
1622 /* TLS 1.3 tickets requested by the application. */
1623 int extra_tickets_expected;
1624 size_t ecpointformats_len;
1626 unsigned char *ecpointformats;
1628 size_t peer_ecpointformats_len;
1630 unsigned char *peer_ecpointformats;
1631 size_t supportedgroups_len;
1633 uint16_t *supportedgroups;
1635 size_t peer_supportedgroups_len;
1637 uint16_t *peer_supportedgroups;
1639 /* TLS Session Ticket extension override */
1640 TLS_SESSION_TICKET_EXT *session_ticket;
1641 /* TLS Session Ticket extension callback */
1642 tls_session_ticket_ext_cb_fn session_ticket_cb;
1643 void *session_ticket_cb_arg;
1644 /* TLS pre-shared secret session resumption */
1645 tls_session_secret_cb_fn session_secret_cb;
1646 void *session_secret_cb_arg;
1648 * For a client, this contains the list of supported protocols in wire
1651 unsigned char *alpn;
1654 * Next protocol negotiation. For the client, this is the protocol that
1655 * we sent in NextProtocol and is set when handling ServerHello
1656 * extensions. For a server, this is the client's selected_protocol from
1657 * NextProtocol and is set when handling the NextProtocol message, before
1658 * the Finished message.
1663 /* The available PSK key exchange modes */
1666 /* Set to one if we have negotiated ETM */
1669 /* Are we expecting to receive early data? */
1671 /* Is the session suitable for early data? */
1674 /* May be sent by a server in HRR. Must be echoed back in ClientHello */
1675 unsigned char *tls13_cookie;
1676 size_t tls13_cookie_len;
1677 /* Have we received a cookie from the client? */
1681 * Maximum Fragment Length as per RFC 4366.
1682 * If this member contains one of the allowed values (1-4)
1683 * then we should include Maximum Fragment Length Negotiation
1684 * extension in Client Hello.
1685 * Please note that value of this member does not have direct
1686 * effect. The actual (binding) value is stored in SSL_SESSION,
1687 * as this extension is optional on server side.
1689 uint8_t max_fragment_len_mode;
1692 * On the client side the number of ticket identities we sent in the
1693 * ClientHello. On the server side the identity of the ticket we
1698 /* This is the list of algorithms the peer supports that we also support */
1699 int compress_certificate_from_peer[TLSEXT_comp_cert_limit];
1700 /* indicate that we sent the extension, so we'll accept it */
1701 int compress_certificate_sent;
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;
1818 #ifndef OPENSSL_NO_COMP_ALG
1819 /* certificate compression preferences */
1820 int cert_comp_prefs[TLSEXT_comp_cert_limit];
1824 # define SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, c) \
1825 ((ssl) == NULL ? NULL \
1826 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1827 ? (c SSL_CONNECTION *)(ssl) \
1829 # define SSL_CONNECTION_NO_CONST
1830 # define SSL_CONNECTION_FROM_SSL_ONLY(ssl) \
1831 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1832 # define SSL_CONNECTION_FROM_CONST_SSL_ONLY(ssl) \
1833 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1834 # define SSL_CONNECTION_GET_CTX(sc) ((sc)->ssl.ctx)
1835 # ifndef OPENSSL_NO_QUIC
1836 # include "quic/quic_local.h"
1837 # define SSL_CONNECTION_FROM_SSL_int(ssl, c) \
1838 ((ssl) == NULL ? NULL \
1839 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1840 ? (c SSL_CONNECTION *)(ssl) \
1841 : ((ssl)->type == SSL_TYPE_QUIC_CONNECTION \
1842 ? (c SSL_CONNECTION *)((c QUIC_CONNECTION *)(ssl))->tls \
1844 # define SSL_CONNECTION_FROM_SSL(ssl) \
1845 SSL_CONNECTION_FROM_SSL_int(ssl, SSL_CONNECTION_NO_CONST)
1846 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1847 SSL_CONNECTION_FROM_SSL_int(ssl, const)
1848 # define SSL_CONNECTION_GET_SSL(sc) ((sc)->user_ssl)
1850 # define SSL_CONNECTION_FROM_SSL(ssl) \
1851 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1852 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1853 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1854 # define SSL_CONNECTION_GET_SSL(sc) (&(sc)->ssl)
1858 * Structure containing table entry of values associated with the signature
1859 * algorithms (signature scheme) extension
1861 typedef struct sigalg_lookup_st {
1862 /* TLS 1.3 signature scheme name */
1864 /* Raw value used in extension */
1866 /* NID of hash algorithm or NID_undef if no hash */
1868 /* Index of hash algorithm or -1 if no hash algorithm */
1870 /* NID of signature algorithm */
1872 /* Index of signature algorithm */
1874 /* Combined hash and signature NID, if any */
1876 /* Required public key curve (ECDSA only) */
1878 /* Whether this signature algorithm is actually available for use */
1883 * Structure containing table entry of certificate info corresponding to
1887 int nid; /* NID of public key algorithm */
1888 uint32_t amask; /* authmask corresponding to key type */
1891 /* DTLS structures */
1893 # ifndef OPENSSL_NO_SCTP
1894 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1897 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1898 # define DTLS1_MAX_MTU_OVERHEAD 48
1901 * Flag used in message reuse to indicate the buffer contains the record
1902 * header as well as the handshake message header.
1904 # define DTLS1_SKIP_RECORD_HEADER 2
1906 struct dtls1_retransmit_state {
1907 const OSSL_RECORD_METHOD *wrlmethod;
1908 OSSL_RECORD_LAYER *wrl;
1911 struct hm_header_st {
1917 unsigned int is_ccs;
1918 struct dtls1_retransmit_state saved_retransmit_state;
1921 typedef struct hm_fragment_st {
1922 struct hm_header_st msg_header;
1923 unsigned char *fragment;
1924 unsigned char *reassembly;
1927 typedef struct pqueue_st pqueue;
1928 typedef struct pitem_st pitem;
1931 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1936 typedef struct pitem_st *piterator;
1938 pitem *pitem_new(unsigned char *prio64be, void *data);
1939 void pitem_free(pitem *item);
1940 pqueue *pqueue_new(void);
1941 void pqueue_free(pqueue *pq);
1942 pitem *pqueue_insert(pqueue *pq, pitem *item);
1943 pitem *pqueue_peek(pqueue *pq);
1944 pitem *pqueue_pop(pqueue *pq);
1945 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1946 pitem *pqueue_iterator(pqueue *pq);
1947 pitem *pqueue_next(piterator *iter);
1948 size_t pqueue_size(pqueue *pq);
1950 typedef struct dtls1_state_st {
1951 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1953 unsigned int cookie_verified;
1954 /* handshake message numbers */
1955 unsigned short handshake_write_seq;
1956 unsigned short next_handshake_write_seq;
1957 unsigned short handshake_read_seq;
1958 /* Buffered handshake messages */
1959 pqueue *buffered_messages;
1960 /* Buffered (sent) handshake records */
1961 pqueue *sent_messages;
1962 size_t link_mtu; /* max on-the-wire DTLS packet size */
1963 size_t mtu; /* max DTLS packet size */
1964 struct hm_header_st w_msg_hdr;
1965 struct hm_header_st r_msg_hdr;
1966 /* Number of alerts received so far */
1967 unsigned int timeout_num_alerts;
1969 * Indicates when the last handshake msg sent will timeout
1971 OSSL_TIME next_timeout;
1972 /* Timeout duration */
1973 unsigned int timeout_duration_us;
1975 unsigned int retransmitting;
1976 # ifndef OPENSSL_NO_SCTP
1977 int shutdown_received;
1980 DTLS_timer_cb timer_cb;
1985 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1987 # define EXPLICIT_PRIME_CURVE_TYPE 1
1988 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1989 # define NAMED_CURVE_TYPE 3
1991 # ifndef OPENSSL_NO_COMP_ALG
1992 struct ossl_comp_cert_st {
1993 unsigned char *data;
1996 CRYPTO_REF_COUNT references;
1997 CRYPTO_RWLOCK *lock;
2000 typedef struct ossl_comp_cert_st OSSL_COMP_CERT;
2002 void OSSL_COMP_CERT_free(OSSL_COMP_CERT *c);
2003 int OSSL_COMP_CERT_up_ref(OSSL_COMP_CERT *c);
2006 struct cert_pkey_st {
2008 EVP_PKEY *privatekey;
2009 /* Chain for this certificate */
2010 STACK_OF(X509) *chain;
2012 * serverinfo data for this certificate. The data is in TLS Extension
2013 * wire format, specifically it's a series of records like:
2014 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
2016 * uint8_t data[length];
2018 unsigned char *serverinfo;
2019 size_t serverinfo_length;
2020 # ifndef OPENSSL_NO_COMP_ALG
2021 /* Compressed certificate data - index 0 is unused */
2022 OSSL_COMP_CERT *comp_cert[TLSEXT_comp_cert_limit];
2026 /* Retrieve Suite B flags */
2027 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
2028 /* Uses to check strict mode: suite B modes are always strict */
2029 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
2030 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
2033 ENDPOINT_CLIENT = 0,
2040 unsigned short ext_type;
2042 /* The context which this extension applies to */
2043 unsigned int context;
2045 * Per-connection flags relating to this extension type: not used if
2046 * part of an SSL_CTX structure.
2049 SSL_custom_ext_add_cb_ex add_cb;
2050 SSL_custom_ext_free_cb_ex free_cb;
2052 SSL_custom_ext_parse_cb_ex parse_cb;
2054 } custom_ext_method;
2056 /* ext_flags values */
2059 * Indicates an extension has been received. Used to check for unsolicited or
2060 * duplicate extensions.
2062 # define SSL_EXT_FLAG_RECEIVED 0x1
2064 * Indicates an extension has been sent: used to enable sending of
2065 * corresponding ServerHello extension.
2067 # define SSL_EXT_FLAG_SENT 0x2
2070 custom_ext_method *meths;
2072 } custom_ext_methods;
2074 typedef struct cert_st {
2075 /* Current active set */
2077 * ALWAYS points to an element of the pkeys array
2078 * Probably it would make more sense to store
2079 * an index, not a pointer.
2084 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
2086 /* Flags related to certificates */
2087 uint32_t cert_flags;
2088 CERT_PKEY pkeys[SSL_PKEY_NUM];
2089 /* Custom certificate types sent in certificate request message. */
2093 * supported signature algorithms. When set on a client this is sent in
2094 * the client hello as the supported signature algorithms extension. For
2095 * servers it represents the signature algorithms we are willing to use.
2097 uint16_t *conf_sigalgs;
2098 /* Size of above array */
2099 size_t conf_sigalgslen;
2101 * Client authentication signature algorithms, if not set then uses
2102 * conf_sigalgs. On servers these will be the signature algorithms sent
2103 * to the client in a certificate request for TLS 1.2. On a client this
2104 * represents the signature algorithms we are willing to use for client
2107 uint16_t *client_sigalgs;
2108 /* Size of above array */
2109 size_t client_sigalgslen;
2111 * Certificate setup callback: if set is called whenever a certificate
2112 * may be required (client or server). the callback can then examine any
2113 * appropriate parameters and setup any certificates required. This
2114 * allows advanced applications to select certificates on the fly: for
2115 * example based on supported signature algorithms or curves.
2117 int (*cert_cb) (SSL *ssl, void *arg);
2120 * Optional X509_STORE for chain building or certificate validation If
2121 * NULL the parent SSL_CTX store is used instead.
2123 X509_STORE *chain_store;
2124 X509_STORE *verify_store;
2125 /* Custom extensions */
2126 custom_ext_methods custext;
2127 /* Security callback */
2128 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
2129 void *other, void *ex);
2130 /* Security level */
2133 # ifndef OPENSSL_NO_PSK
2134 /* If not NULL psk identity hint to use for servers */
2135 char *psk_identity_hint;
2137 CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */
2138 CRYPTO_RWLOCK *lock;
2141 # define FP_ICC (int (*)(const void *,const void *))
2144 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
2145 * of a mess of functions, but hell, think of it as an opaque structure :-)
2147 typedef struct ssl3_enc_method {
2148 int (*setup_key_block) (SSL_CONNECTION *);
2149 int (*generate_master_secret) (SSL_CONNECTION *, unsigned char *,
2150 unsigned char *, size_t, size_t *);
2151 int (*change_cipher_state) (SSL_CONNECTION *, int);
2152 size_t (*final_finish_mac) (SSL_CONNECTION *, const char *, size_t,
2154 const char *client_finished_label;
2155 size_t client_finished_label_len;
2156 const char *server_finished_label;
2157 size_t server_finished_label_len;
2158 int (*alert_value) (int);
2159 int (*export_keying_material) (SSL_CONNECTION *, unsigned char *, size_t,
2160 const char *, size_t,
2161 const unsigned char *, size_t,
2163 /* Various flags indicating protocol version requirements */
2165 /* Set the handshake header */
2166 int (*set_handshake_header) (SSL_CONNECTION *s, WPACKET *pkt, int type);
2167 /* Close construction of the handshake message */
2168 int (*close_construct_packet) (SSL_CONNECTION *s, WPACKET *pkt, int htype);
2169 /* Write out handshake message */
2170 int (*do_write) (SSL_CONNECTION *s);
2173 # define ssl_set_handshake_header(s, pkt, htype) \
2174 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
2175 # define ssl_close_construct_packet(s, pkt, htype) \
2176 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
2177 # define ssl_do_write(s) SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->do_write(s)
2179 /* Values for enc_flags */
2181 /* Uses explicit IV for CBC mode */
2182 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
2183 /* Uses signature algorithms extension */
2184 # define SSL_ENC_FLAG_SIGALGS 0x2
2185 /* Uses SHA256 default PRF */
2186 # define SSL_ENC_FLAG_SHA256_PRF 0x4
2188 # define SSL_ENC_FLAG_DTLS 0x8
2190 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
2191 * apply to others in future.
2193 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
2195 # ifndef OPENSSL_NO_COMP
2196 /* Used for holding the relevant compression methods loaded into SSL_CTX */
2197 typedef struct ssl3_comp_st {
2198 int comp_id; /* The identifier byte for this compression
2200 char *name; /* Text name used for the compression type */
2201 COMP_METHOD *method; /* The method :-) */
2205 typedef enum downgrade_en {
2212 * Dummy status type for the status_type extension. Indicates no status type
2215 #define TLSEXT_STATUSTYPE_nothing -1
2217 /* Sigalgs values */
2218 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
2219 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
2220 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
2221 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303
2222 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203
2223 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804
2224 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805
2225 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806
2226 #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809
2227 #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a
2228 #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b
2229 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
2230 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
2231 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
2232 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
2233 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
2234 #define TLSEXT_SIGALG_dsa_sha256 0x0402
2235 #define TLSEXT_SIGALG_dsa_sha384 0x0502
2236 #define TLSEXT_SIGALG_dsa_sha512 0x0602
2237 #define TLSEXT_SIGALG_dsa_sha224 0x0302
2238 #define TLSEXT_SIGALG_dsa_sha1 0x0202
2239 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840
2240 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841
2241 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
2242 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
2243 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
2245 #define TLSEXT_SIGALG_ed25519 0x0807
2246 #define TLSEXT_SIGALG_ed448 0x0808
2247 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256 0x081a
2248 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384 0x081b
2249 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512 0x081c
2251 /* Known PSK key exchange modes */
2252 #define TLSEXT_KEX_MODE_KE 0x00
2253 #define TLSEXT_KEX_MODE_KE_DHE 0x01
2256 * Internal representations of key exchange modes
2258 #define TLSEXT_KEX_MODE_FLAG_NONE 0
2259 #define TLSEXT_KEX_MODE_FLAG_KE 1
2260 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
2262 #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \
2263 s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
2265 /* A dummy signature value not valid for TLSv1.2 signature algs */
2266 #define TLSEXT_signature_rsa_pss 0x0101
2268 /* TLSv1.3 downgrade protection sentinel values */
2269 extern const unsigned char tls11downgrade[8];
2270 extern const unsigned char tls12downgrade[8];
2272 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
2274 __owur const SSL_METHOD *ssl_bad_method(int ver);
2275 __owur const SSL_METHOD *sslv3_method(void);
2276 __owur const SSL_METHOD *sslv3_server_method(void);
2277 __owur const SSL_METHOD *sslv3_client_method(void);
2278 __owur const SSL_METHOD *tlsv1_method(void);
2279 __owur const SSL_METHOD *tlsv1_server_method(void);
2280 __owur const SSL_METHOD *tlsv1_client_method(void);
2281 __owur const SSL_METHOD *tlsv1_1_method(void);
2282 __owur const SSL_METHOD *tlsv1_1_server_method(void);
2283 __owur const SSL_METHOD *tlsv1_1_client_method(void);
2284 __owur const SSL_METHOD *tlsv1_2_method(void);
2285 __owur const SSL_METHOD *tlsv1_2_server_method(void);
2286 __owur const SSL_METHOD *tlsv1_2_client_method(void);
2287 __owur const SSL_METHOD *tlsv1_3_method(void);
2288 __owur const SSL_METHOD *tlsv1_3_server_method(void);
2289 __owur const SSL_METHOD *tlsv1_3_client_method(void);
2290 __owur const SSL_METHOD *dtlsv1_method(void);
2291 __owur const SSL_METHOD *dtlsv1_server_method(void);
2292 __owur const SSL_METHOD *dtlsv1_client_method(void);
2293 __owur const SSL_METHOD *dtls_bad_ver_client_method(void);
2294 __owur const SSL_METHOD *dtlsv1_2_method(void);
2295 __owur const SSL_METHOD *dtlsv1_2_server_method(void);
2296 __owur const SSL_METHOD *dtlsv1_2_client_method(void);
2298 extern const SSL3_ENC_METHOD TLSv1_enc_data;
2299 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
2300 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
2301 extern const SSL3_ENC_METHOD TLSv1_3_enc_data;
2302 extern const SSL3_ENC_METHOD SSLv3_enc_data;
2303 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
2304 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
2307 * Flags for SSL methods
2309 # define SSL_METHOD_NO_FIPS (1U<<0)
2310 # define SSL_METHOD_NO_SUITEB (1U<<1)
2312 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
2313 s_connect, enc_data) \
2314 const SSL_METHOD *func_name(void) \
2316 static const SSL_METHOD func_name##_data= { \
2320 ossl_ssl_connection_new, \
2321 ossl_ssl_connection_free, \
2322 ossl_ssl_connection_reset, \
2333 ssl3_renegotiate_check, \
2336 ssl3_dispatch_alert, \
2339 ssl3_get_cipher_by_char, \
2340 ssl3_put_cipher_by_char, \
2344 tls1_default_timeout, \
2346 ssl_undefined_void_function, \
2347 ssl3_callback_ctrl, \
2348 ssl3_ctx_callback_ctrl, \
2350 return &func_name##_data; \
2353 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
2354 const SSL_METHOD *func_name(void) \
2356 static const SSL_METHOD func_name##_data= { \
2358 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
2360 ossl_ssl_connection_new, \
2361 ossl_ssl_connection_free, \
2362 ossl_ssl_connection_reset, \
2373 ssl3_renegotiate_check, \
2376 ssl3_dispatch_alert, \
2379 ssl3_get_cipher_by_char, \
2380 ssl3_put_cipher_by_char, \
2384 ssl3_default_timeout, \
2386 ssl_undefined_void_function, \
2387 ssl3_callback_ctrl, \
2388 ssl3_ctx_callback_ctrl, \
2390 return &func_name##_data; \
2393 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
2394 s_connect, enc_data) \
2395 const SSL_METHOD *func_name(void) \
2397 static const SSL_METHOD func_name##_data= { \
2401 ossl_ssl_connection_new, \
2402 ossl_ssl_connection_free, \
2403 ossl_ssl_connection_reset, \
2414 ssl3_renegotiate_check, \
2416 dtls1_write_app_data_bytes, \
2417 dtls1_dispatch_alert, \
2420 ssl3_get_cipher_by_char, \
2421 ssl3_put_cipher_by_char, \
2425 dtls1_default_timeout, \
2427 ssl_undefined_void_function, \
2428 ssl3_callback_ctrl, \
2429 ssl3_ctx_callback_ctrl, \
2431 return &func_name##_data; \
2434 struct openssl_ssl_test_functions {
2435 int (*p_ssl_init_wbio_buffer) (SSL_CONNECTION *s);
2438 const char *ssl_protocol_to_string(int version);
2440 /* Returns true if certificate and private key for 'idx' are present */
2441 static ossl_inline int ssl_has_cert(const SSL_CONNECTION *s, int idx)
2443 if (idx < 0 || idx >= SSL_PKEY_NUM)
2445 return s->cert->pkeys[idx].x509 != NULL
2446 && s->cert->pkeys[idx].privatekey != NULL;
2449 static ossl_inline void tls1_get_peer_groups(SSL_CONNECTION *s,
2450 const uint16_t **pgroups,
2453 *pgroups = s->ext.peer_supportedgroups;
2454 *pgroupslen = s->ext.peer_supportedgroups_len;
2457 # ifndef OPENSSL_UNIT_TEST
2459 __owur int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, int type);
2460 __owur SSL *ossl_ssl_connection_new(SSL_CTX *ctx);
2461 void ossl_ssl_connection_free(SSL *ssl);
2462 __owur int ossl_ssl_connection_reset(SSL *ssl);
2464 __owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes);
2465 __owur int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written);
2466 int ssl_clear_bad_session(SSL_CONNECTION *s);
2467 __owur CERT *ssl_cert_new(void);
2468 __owur CERT *ssl_cert_dup(CERT *cert);
2469 void ssl_cert_clear_certs(CERT *c);
2470 void ssl_cert_free(CERT *c);
2471 __owur int ssl_generate_session_id(SSL_CONNECTION *s, SSL_SESSION *ss);
2472 __owur int ssl_get_new_session(SSL_CONNECTION *s, int session);
2473 __owur SSL_SESSION *lookup_sess_in_cache(SSL_CONNECTION *s,
2474 const unsigned char *sess_id,
2475 size_t sess_id_len);
2476 __owur int ssl_get_prev_session(SSL_CONNECTION *s, CLIENTHELLO_MSG *hello);
2477 __owur SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket);
2478 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
2479 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
2480 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2481 const SSL_CIPHER *const *bp);
2482 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx,
2483 STACK_OF(SSL_CIPHER) *tls13_ciphersuites,
2484 STACK_OF(SSL_CIPHER) **cipher_list,
2485 STACK_OF(SSL_CIPHER) **cipher_list_by_id,
2486 const char *rule_str,
2488 __owur int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites,
2490 __owur int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
2491 STACK_OF(SSL_CIPHER) **skp,
2492 STACK_OF(SSL_CIPHER) **scsvs, int sslv2format,
2494 void ssl_update_cache(SSL_CONNECTION *s, int mode);
2495 __owur int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc,
2496 const EVP_CIPHER **enc);
2497 __owur int ssl_cipher_get_evp(SSL_CTX *ctxc, const SSL_SESSION *s,
2498 const EVP_CIPHER **enc, const EVP_MD **md,
2499 int *mac_pkey_type, size_t *mac_secret_size,
2500 SSL_COMP **comp, int use_etm);
2501 __owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead,
2502 size_t *int_overhead, size_t *blocksize,
2503 size_t *ext_overhead);
2504 __owur int ssl_cert_is_disabled(SSL_CTX *ctx, size_t idx);
2505 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL_CONNECTION *ssl,
2506 const unsigned char *ptr,
2508 __owur int ssl_cert_set0_chain(SSL_CONNECTION *s, SSL_CTX *ctx,
2509 STACK_OF(X509) *chain);
2510 __owur int ssl_cert_set1_chain(SSL_CONNECTION *s, SSL_CTX *ctx,
2511 STACK_OF(X509) *chain);
2512 __owur int ssl_cert_add0_chain_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x);
2513 __owur int ssl_cert_add1_chain_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x);
2514 __owur int ssl_cert_select_current(CERT *c, X509 *x);
2515 __owur int ssl_cert_set_current(CERT *c, long arg);
2516 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg);
2518 __owur int ssl_verify_cert_chain(SSL_CONNECTION *s, STACK_OF(X509) *sk);
2519 __owur int ssl_build_cert_chain(SSL_CONNECTION *s, SSL_CTX *ctx, int flags);
2520 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain,
2522 __owur int ssl_cert_get_cert_store(CERT *c, X509_STORE **pstore, int chain);
2524 __owur int ssl_security(const SSL_CONNECTION *s, int op, int bits, int nid,
2526 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid,
2528 int ssl_get_security_level_bits(const SSL *s, const SSL_CTX *ctx, int *levelp);
2530 __owur int ssl_cert_lookup_by_nid(int nid, size_t *pidx);
2531 __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk,
2533 __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx);
2535 int ssl_undefined_function(SSL *s);
2536 __owur int ssl_undefined_void_function(void);
2537 __owur int ssl_undefined_const_function(const SSL *s);
2538 __owur int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
2539 const unsigned char **serverinfo,
2540 size_t *serverinfo_length);
2541 void ssl_set_masks(SSL_CONNECTION *s);
2542 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *sc);
2543 __owur int ssl_x509err2alert(int type);
2544 void ssl_sort_cipher_list(void);
2545 int ssl_load_ciphers(SSL_CTX *ctx);
2546 __owur int ssl_setup_sig_algs(SSL_CTX *ctx);
2547 int ssl_load_groups(SSL_CTX *ctx);
2548 __owur int ssl_fill_hello_random(SSL_CONNECTION *s, int server,
2549 unsigned char *field, size_t len,
2551 __owur int ssl_generate_master_secret(SSL_CONNECTION *s, unsigned char *pms,
2552 size_t pmslen, int free_pms);
2553 __owur EVP_PKEY *ssl_generate_pkey(SSL_CONNECTION *s, EVP_PKEY *pm);
2554 __owur int ssl_gensecret(SSL_CONNECTION *s, unsigned char *pms, size_t pmslen);
2555 __owur int ssl_derive(SSL_CONNECTION *s, EVP_PKEY *privkey, EVP_PKEY *pubkey,
2557 __owur int ssl_decapsulate(SSL_CONNECTION *s, EVP_PKEY *privkey,
2558 const unsigned char *ct, size_t ctlen,
2560 __owur int ssl_encapsulate(SSL_CONNECTION *s, EVP_PKEY *pubkey,
2561 unsigned char **ctp, size_t *ctlenp,
2563 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
2564 __owur int ssl_set_tmp_ecdh_groups(uint16_t **pext, size_t *pextlen,
2566 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc);
2567 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc);
2569 __owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id);
2570 __owur const SSL_CIPHER *ssl3_get_cipher_by_std_name(const char *stdname);
2571 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
2572 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt,
2574 int ssl3_init_finished_mac(SSL_CONNECTION *s);
2575 __owur int ssl3_setup_key_block(SSL_CONNECTION *s);
2576 __owur int ssl3_change_cipher_state(SSL_CONNECTION *s, int which);
2577 void ssl3_cleanup_key_block(SSL_CONNECTION *s);
2578 __owur int ssl3_do_write(SSL_CONNECTION *s, int type);
2579 int ssl3_send_alert(SSL_CONNECTION *s, int level, int desc);
2580 __owur int ssl3_generate_master_secret(SSL_CONNECTION *s, unsigned char *out,
2581 unsigned char *p, size_t len,
2582 size_t *secret_size);
2583 __owur int ssl3_get_req_cert_type(SSL_CONNECTION *s, WPACKET *pkt);
2584 __owur int ssl3_num_ciphers(void);
2585 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
2586 int ssl3_renegotiate(SSL *ssl);
2587 int ssl3_renegotiate_check(SSL *ssl, int initok);
2588 void ssl3_digest_master_key_set_params(const SSL_SESSION *session,
2589 OSSL_PARAM params[]);
2590 __owur int ssl3_dispatch_alert(SSL *s);
2591 __owur size_t ssl3_final_finish_mac(SSL_CONNECTION *s, const char *sender,
2592 size_t slen, unsigned char *p);
2593 __owur int ssl3_finish_mac(SSL_CONNECTION *s, const unsigned char *buf,
2595 void ssl3_free_digest_list(SSL_CONNECTION *s);
2596 __owur unsigned long ssl3_output_cert_chain(SSL_CONNECTION *s, WPACKET *pkt,
2597 CERT_PKEY *cpk, int for_comp);
2598 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL_CONNECTION *s,
2599 STACK_OF(SSL_CIPHER) *clnt,
2600 STACK_OF(SSL_CIPHER) *srvr);
2601 __owur int ssl3_digest_cached_records(SSL_CONNECTION *s, int keep);
2602 __owur int ssl3_new(SSL *s);
2603 void ssl3_free(SSL *s);
2604 __owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes);
2605 __owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes);
2606 __owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written);
2607 __owur int ssl3_shutdown(SSL *s);
2608 int ssl3_clear(SSL *s);
2609 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
2610 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
2611 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2612 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
2614 __owur int ssl3_do_change_cipher_spec(SSL_CONNECTION *s);
2615 __owur OSSL_TIME ssl3_default_timeout(void);
2617 __owur int ssl3_set_handshake_header(SSL_CONNECTION *s, WPACKET *pkt,
2619 __owur int tls_close_construct_packet(SSL_CONNECTION *s, WPACKET *pkt, int htype);
2620 __owur int tls_setup_handshake(SSL_CONNECTION *s);
2621 __owur int dtls1_set_handshake_header(SSL_CONNECTION *s, WPACKET *pkt, int htype);
2622 __owur int dtls1_close_construct_packet(SSL_CONNECTION *s, WPACKET *pkt, int htype);
2623 __owur int ssl3_handshake_write(SSL_CONNECTION *s);
2625 __owur int ssl_allow_compression(SSL_CONNECTION *s);
2627 __owur int ssl_version_supported(const SSL_CONNECTION *s, int version,
2628 const SSL_METHOD **meth);
2630 __owur int ssl_set_client_hello_version(SSL_CONNECTION *s);
2631 __owur int ssl_check_version_downgrade(SSL_CONNECTION *s);
2632 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
2633 __owur int ssl_choose_server_version(SSL_CONNECTION *s, CLIENTHELLO_MSG *hello,
2635 __owur int ssl_choose_client_version(SSL_CONNECTION *s, int version,
2636 RAW_EXTENSION *extensions);
2637 __owur int ssl_get_min_max_version(const SSL_CONNECTION *s, int *min_version,
2638 int *max_version, int *real_max);
2640 __owur OSSL_TIME tls1_default_timeout(void);
2641 __owur int dtls1_do_write(SSL_CONNECTION *s, int type);
2642 void dtls1_set_message_header(SSL_CONNECTION *s,
2645 size_t frag_off, size_t frag_len);
2647 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, size_t len,
2650 __owur int dtls1_read_failed(SSL_CONNECTION *s, int code);
2651 __owur int dtls1_buffer_message(SSL_CONNECTION *s, int ccs);
2652 __owur int dtls1_retransmit_message(SSL_CONNECTION *s, unsigned short seq,
2654 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
2655 int dtls1_retransmit_buffered_messages(SSL_CONNECTION *s);
2656 void dtls1_clear_received_buffer(SSL_CONNECTION *s);
2657 void dtls1_clear_sent_buffer(SSL_CONNECTION *s);
2658 void dtls1_get_message_header(unsigned char *data,
2659 struct hm_header_st *msg_hdr);
2660 __owur OSSL_TIME dtls1_default_timeout(void);
2661 __owur OSSL_TIME *dtls1_get_timeout(SSL_CONNECTION *s, OSSL_TIME *timeleft);
2662 __owur int dtls1_check_timeout_num(SSL_CONNECTION *s);
2663 __owur int dtls1_handle_timeout(SSL_CONNECTION *s);
2664 void dtls1_start_timer(SSL_CONNECTION *s);
2665 void dtls1_stop_timer(SSL_CONNECTION *s);
2666 __owur int dtls1_is_timer_expired(SSL_CONNECTION *s);
2667 __owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie,
2669 __owur size_t dtls1_min_mtu(SSL_CONNECTION *s);
2670 void dtls1_hm_fragment_free(hm_fragment *frag);
2671 __owur int dtls1_query_mtu(SSL_CONNECTION *s);
2673 __owur int tls1_new(SSL *s);
2674 void tls1_free(SSL *s);
2675 int tls1_clear(SSL *s);
2677 __owur int dtls1_new(SSL *s);
2678 void dtls1_free(SSL *s);
2679 int dtls1_clear(SSL *s);
2680 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2681 __owur int dtls1_shutdown(SSL *s);
2683 __owur int dtls1_dispatch_alert(SSL *s);
2685 __owur int ssl_init_wbio_buffer(SSL_CONNECTION *s);
2686 int ssl_free_wbio_buffer(SSL_CONNECTION *s);
2688 __owur int tls1_change_cipher_state(SSL_CONNECTION *s, int which);
2689 __owur int tls1_setup_key_block(SSL_CONNECTION *s);
2690 __owur size_t tls1_final_finish_mac(SSL_CONNECTION *s, const char *str,
2691 size_t slen, unsigned char *p);
2692 __owur int tls1_generate_master_secret(SSL_CONNECTION *s, unsigned char *out,
2693 unsigned char *p, size_t len,
2694 size_t *secret_size);
2695 __owur int tls13_setup_key_block(SSL_CONNECTION *s);
2696 __owur size_t tls13_final_finish_mac(SSL_CONNECTION *s, const char *str, size_t slen,
2698 __owur int tls13_change_cipher_state(SSL_CONNECTION *s, int which);
2699 __owur int tls13_update_key(SSL_CONNECTION *s, int send);
2700 __owur int tls13_hkdf_expand(SSL_CONNECTION *s,
2702 const unsigned char *secret,
2703 const unsigned char *label, size_t labellen,
2704 const unsigned char *data, size_t datalen,
2705 unsigned char *out, size_t outlen, int fatal);
2706 __owur int tls13_hkdf_expand_ex(OSSL_LIB_CTX *libctx, const char *propq,
2708 const unsigned char *secret,
2709 const unsigned char *label, size_t labellen,
2710 const unsigned char *data, size_t datalen,
2711 unsigned char *out, size_t outlen,
2713 __owur int tls13_derive_key(SSL_CONNECTION *s, const EVP_MD *md,
2714 const unsigned char *secret, unsigned char *key,
2716 __owur int tls13_derive_iv(SSL_CONNECTION *s, const EVP_MD *md,
2717 const unsigned char *secret, unsigned char *iv,
2719 __owur int tls13_derive_finishedkey(SSL_CONNECTION *s, const EVP_MD *md,
2720 const unsigned char *secret,
2721 unsigned char *fin, size_t finlen);
2722 int tls13_generate_secret(SSL_CONNECTION *s, const EVP_MD *md,
2723 const unsigned char *prevsecret,
2724 const unsigned char *insecret,
2726 unsigned char *outsecret);
2727 __owur int tls13_generate_handshake_secret(SSL_CONNECTION *s,
2728 const unsigned char *insecret,
2729 size_t insecretlen);
2730 __owur int tls13_generate_master_secret(SSL_CONNECTION *s, unsigned char *out,
2731 unsigned char *prev, size_t prevlen,
2732 size_t *secret_size);
2733 __owur int tls1_export_keying_material(SSL_CONNECTION *s,
2734 unsigned char *out, size_t olen,
2735 const char *label, size_t llen,
2736 const unsigned char *p, size_t plen,
2738 __owur int tls13_export_keying_material(SSL_CONNECTION *s,
2739 unsigned char *out, size_t olen,
2740 const char *label, size_t llen,
2741 const unsigned char *context,
2742 size_t contextlen, int use_context);
2743 __owur int tls13_export_keying_material_early(SSL_CONNECTION *s,
2744 unsigned char *out, size_t olen,
2745 const char *label, size_t llen,
2746 const unsigned char *context,
2748 __owur int tls1_alert_code(int code);
2749 __owur int tls13_alert_code(int code);
2750 __owur int ssl3_alert_code(int code);
2752 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s);
2754 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2756 __owur const TLS_GROUP_INFO *tls1_group_id_lookup(SSL_CTX *ctx, uint16_t curve_id);
2757 __owur int tls1_group_id2nid(uint16_t group_id, int include_unknown);
2758 __owur uint16_t tls1_nid2group_id(int nid);
2759 __owur int tls1_check_group_id(SSL_CONNECTION *s, uint16_t group_id,
2760 int check_own_curves);
2761 __owur uint16_t tls1_shared_group(SSL_CONNECTION *s, int nmatch);
2762 __owur int tls1_set_groups(uint16_t **pext, size_t *pextlen,
2763 int *curves, size_t ncurves);
2764 __owur int tls1_set_groups_list(SSL_CTX *ctx, uint16_t **pext, size_t *pextlen,
2766 __owur EVP_PKEY *ssl_generate_pkey_group(SSL_CONNECTION *s, uint16_t id);
2767 __owur int tls_valid_group(SSL_CONNECTION *s, uint16_t group_id, int minversion,
2768 int maxversion, int isec, int *okfortls13);
2769 __owur EVP_PKEY *ssl_generate_param_group(SSL_CONNECTION *s, uint16_t id);
2770 void tls1_get_formatlist(SSL_CONNECTION *s, const unsigned char **pformats,
2771 size_t *num_formats);
2772 __owur int tls1_check_ec_tmp_key(SSL_CONNECTION *s, unsigned long id);
2774 __owur int tls_group_allowed(SSL_CONNECTION *s, uint16_t curve, int op);
2775 void tls1_get_supported_groups(SSL_CONNECTION *s, const uint16_t **pgroups,
2776 size_t *pgroupslen);
2778 __owur int tls1_set_server_sigalgs(SSL_CONNECTION *s);
2780 __owur SSL_TICKET_STATUS tls_get_ticket_from_client(SSL_CONNECTION *s,
2781 CLIENTHELLO_MSG *hello,
2783 __owur SSL_TICKET_STATUS tls_decrypt_ticket(SSL_CONNECTION *s,
2784 const unsigned char *etick,
2786 const unsigned char *sess_id,
2787 size_t sesslen, SSL_SESSION **psess);
2789 __owur int tls_use_ticket(SSL_CONNECTION *s);
2791 void ssl_set_sig_mask(uint32_t *pmask_a, SSL_CONNECTION *s, int op);
2793 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2794 __owur int tls1_set_raw_sigalgs(CERT *c, const uint16_t *psigs, size_t salglen,
2796 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen,
2798 int tls1_check_chain(SSL_CONNECTION *s, X509 *x, EVP_PKEY *pk,
2799 STACK_OF(X509) *chain, int idx);
2800 void tls1_set_cert_validity(SSL_CONNECTION *s);
2802 # ifndef OPENSSL_NO_CT
2803 __owur int ssl_validate_ct(SSL_CONNECTION *s);
2806 __owur EVP_PKEY *ssl_get_auto_dh(SSL_CONNECTION *s);
2808 __owur int ssl_security_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x, int vfy,
2810 __owur int ssl_security_cert_chain(SSL_CONNECTION *s, STACK_OF(X509) *sk,
2813 int tls_choose_sigalg(SSL_CONNECTION *s, int fatalerrs);
2815 __owur long ssl_get_algorithm2(SSL_CONNECTION *s);
2816 __owur int tls12_copy_sigalgs(SSL_CONNECTION *s, WPACKET *pkt,
2817 const uint16_t *psig, size_t psiglen);
2818 __owur int tls1_save_u16(PACKET *pkt, uint16_t **pdest, size_t *pdestlen);
2819 __owur int tls1_save_sigalgs(SSL_CONNECTION *s, PACKET *pkt, int cert);
2820 __owur int tls1_process_sigalgs(SSL_CONNECTION *s);
2821 __owur int tls1_set_peer_legacy_sigalg(SSL_CONNECTION *s, const EVP_PKEY *pkey);
2822 __owur int tls1_lookup_md(SSL_CTX *ctx, const SIGALG_LOOKUP *lu,
2823 const EVP_MD **pmd);
2824 __owur size_t tls12_get_psigalgs(SSL_CONNECTION *s, int sent,
2825 const uint16_t **psigs);
2826 __owur int tls_check_sigalg_curve(const SSL_CONNECTION *s, int curve);
2827 __owur int tls12_check_peer_sigalg(SSL_CONNECTION *s, uint16_t, EVP_PKEY *pkey);
2828 __owur int ssl_set_client_disabled(SSL_CONNECTION *s);
2829 __owur int ssl_cipher_disabled(const SSL_CONNECTION *s, const SSL_CIPHER *c,
2832 __owur int ssl_handshake_hash(SSL_CONNECTION *s,
2833 unsigned char *out, size_t outlen,
2835 __owur const EVP_MD *ssl_md(SSL_CTX *ctx, int idx);
2836 __owur const EVP_MD *ssl_handshake_md(SSL_CONNECTION *s);
2837 __owur const EVP_MD *ssl_prf_md(SSL_CONNECTION *s);
2840 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2841 * with |ssl|, if logging is enabled. It returns one on success and zero on
2842 * failure. The entry is identified by the first 8 bytes of
2843 * |encrypted_premaster|.
2845 __owur int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *s,
2846 const uint8_t *encrypted_premaster,
2847 size_t encrypted_premaster_len,
2848 const uint8_t *premaster,
2849 size_t premaster_len);
2852 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2853 * logging is available. It returns one on success and zero on failure. It tags
2854 * the entry with |label|.
2856 __owur int ssl_log_secret(SSL_CONNECTION *s, const char *label,
2857 const uint8_t *secret, size_t secret_len);
2859 #define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2860 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
2861 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2862 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2863 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2864 #define CLIENT_APPLICATION_N_LABEL "CLIENT_TRAFFIC_SECRET_N"
2865 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2866 #define SERVER_APPLICATION_N_LABEL "SERVER_TRAFFIC_SECRET_N"
2867 #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET"
2868 #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET"
2870 __owur int srp_generate_server_master_secret(SSL_CONNECTION *s);
2871 __owur int srp_generate_client_master_secret(SSL_CONNECTION *s);
2872 __owur int srp_verify_server_param(SSL_CONNECTION *s);
2874 /* statem/statem_srvr.c */
2876 __owur int send_certificate_request(SSL_CONNECTION *s);
2878 /* statem/extensions_cust.c */
2880 custom_ext_method *custom_ext_find(const custom_ext_methods *exts,
2881 ENDPOINT role, unsigned int ext_type,
2884 void custom_ext_init(custom_ext_methods *meths);
2886 __owur int custom_ext_parse(SSL_CONNECTION *s, unsigned int context,
2887 unsigned int ext_type,
2888 const unsigned char *ext_data, size_t ext_size,
2889 X509 *x, size_t chainidx);
2890 __owur int custom_ext_add(SSL_CONNECTION *s, int context, WPACKET *pkt, X509 *x,
2891 size_t chainidx, int maxversion);
2893 __owur int custom_exts_copy(custom_ext_methods *dst,
2894 const custom_ext_methods *src);
2895 __owur int custom_exts_copy_flags(custom_ext_methods *dst,
2896 const custom_ext_methods *src);
2897 void custom_exts_free(custom_ext_methods *exts);
2899 void ssl_comp_free_compression_methods_int(void);
2902 void ssl_ctx_system_config(SSL_CTX *ctx);
2904 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
2906 const char *properties);
2907 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher);
2908 void ssl_evp_cipher_free(const EVP_CIPHER *cipher);
2909 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
2911 const char *properties);
2912 int ssl_evp_md_up_ref(const EVP_MD *md);
2913 void ssl_evp_md_free(const EVP_MD *md);
2915 int tls_provider_set_tls_params(SSL_CONNECTION *s, EVP_CIPHER_CTX *ctx,
2916 const EVP_CIPHER *ciph,
2919 void tls_engine_finish(ENGINE *e);
2920 const EVP_CIPHER *tls_get_cipher_from_engine(int nid);
2921 const EVP_MD *tls_get_digest_from_engine(int nid);
2922 int tls_engine_load_ssl_client_cert(SSL_CONNECTION *s, X509 **px509,
2924 int ssl_hmac_old_new(SSL_HMAC *ret);
2925 void ssl_hmac_old_free(SSL_HMAC *ctx);
2926 int ssl_hmac_old_init(SSL_HMAC *ctx, void *key, size_t len, char *md);
2927 int ssl_hmac_old_update(SSL_HMAC *ctx, const unsigned char *data, size_t len);
2928 int ssl_hmac_old_final(SSL_HMAC *ctx, unsigned char *md, size_t *len);
2929 size_t ssl_hmac_old_size(const SSL_HMAC *ctx);
2931 int ssl_ctx_srp_ctx_free_intern(SSL_CTX *ctx);
2932 int ssl_ctx_srp_ctx_init_intern(SSL_CTX *ctx);
2933 int ssl_srp_ctx_free_intern(SSL_CONNECTION *s);
2934 int ssl_srp_ctx_init_intern(SSL_CONNECTION *s);
2936 int ssl_srp_calc_a_param_intern(SSL_CONNECTION *s);
2937 int ssl_srp_server_param_with_username_intern(SSL_CONNECTION *s, int *ad);
2939 void ssl_session_calculate_timeout(SSL_SESSION *ss);
2941 # else /* OPENSSL_UNIT_TEST */
2943 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2947 /* Some helper routines to support TSAN operations safely */
2948 static ossl_unused ossl_inline int ssl_tsan_lock(const SSL_CTX *ctx)
2950 #ifdef TSAN_REQUIRES_LOCKING
2951 if (!CRYPTO_THREAD_write_lock(ctx->tsan_lock))
2957 static ossl_unused ossl_inline void ssl_tsan_unlock(const SSL_CTX *ctx)
2959 #ifdef TSAN_REQUIRES_LOCKING
2960 CRYPTO_THREAD_unlock(ctx->tsan_lock);
2964 static ossl_unused ossl_inline void ssl_tsan_counter(const SSL_CTX *ctx,
2965 TSAN_QUALIFIER int *stat)
2967 if (ssl_tsan_lock(ctx)) {
2969 ssl_tsan_unlock(ctx);
2973 int ossl_comp_has_alg(int a);
2974 size_t ossl_calculate_comp_expansion(int alg, size_t length);