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 "internal/recordmethod.h"
31 # include "internal/statem.h"
32 # include "internal/packet.h"
33 # include "internal/dane.h"
34 # include "internal/refcount.h"
35 # include "internal/tsan_assist.h"
36 # include "internal/bio.h"
37 # include "internal/ktls.h"
38 # include "internal/time.h"
39 # include "record/record.h"
41 # ifdef OPENSSL_BUILD_SHLIBSSL
42 # undef OPENSSL_EXTERN
43 # define OPENSSL_EXTERN OPENSSL_EXPORT
46 # define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION
47 # define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION
50 * DTLS version numbers are strange because they're inverted. Except for
51 * DTLS1_BAD_VER, which should be considered "lower" than the rest.
53 # define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
54 # define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
55 # define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
56 # define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
57 # define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
59 # define SSL_AD_NO_ALERT -1
62 * Define the Bitmasks for SSL_CIPHER.algorithms.
63 * This bits are used packed as dense as possible. If new methods/ciphers
64 * etc will be added, the bits a likely to change, so this information
65 * is for internal library use only, even though SSL_CIPHER.algorithms
66 * can be publicly accessed.
67 * Use the according functions for cipher management instead.
69 * The bit mask handling in the selection and sorting scheme in
70 * ssl_create_cipher_list() has only limited capabilities, reflecting
71 * that the different entities within are mutually exclusive:
72 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
75 /* Bits for algorithm_mkey (key exchange algorithm) */
76 /* RSA key exchange */
77 # define SSL_kRSA 0x00000001U
78 /* tmp DH key no DH cert */
79 # define SSL_kDHE 0x00000002U
81 # define SSL_kEDH SSL_kDHE
83 # define SSL_kECDHE 0x00000004U
85 # define SSL_kEECDH SSL_kECDHE
87 # define SSL_kPSK 0x00000008U
88 /* GOST key exchange */
89 # define SSL_kGOST 0x00000010U
91 # define SSL_kSRP 0x00000020U
93 # define SSL_kRSAPSK 0x00000040U
94 # define SSL_kECDHEPSK 0x00000080U
95 # define SSL_kDHEPSK 0x00000100U
96 /* GOST KDF key exchange, draft-smyshlyaev-tls12-gost-suites */
97 # define SSL_kGOST18 0x00000200U
101 # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
103 /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
104 # define SSL_kANY 0x00000000U
106 /* Bits for algorithm_auth (server authentication) */
108 # define SSL_aRSA 0x00000001U
110 # define SSL_aDSS 0x00000002U
111 /* no auth (i.e. use ADH or AECDH) */
112 # define SSL_aNULL 0x00000004U
114 # define SSL_aECDSA 0x00000008U
116 # define SSL_aPSK 0x00000010U
117 /* GOST R 34.10-2001 signature auth */
118 # define SSL_aGOST01 0x00000020U
120 # define SSL_aSRP 0x00000040U
121 /* GOST R 34.10-2012 signature auth */
122 # define SSL_aGOST12 0x00000080U
123 /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
124 # define SSL_aANY 0x00000000U
125 /* All bits requiring a certificate */
127 (SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12)
129 /* Bits for algorithm_enc (symmetric encryption) */
130 # define SSL_DES 0x00000001U
131 # define SSL_3DES 0x00000002U
132 # define SSL_RC4 0x00000004U
133 # define SSL_RC2 0x00000008U
134 # define SSL_IDEA 0x00000010U
135 # define SSL_eNULL 0x00000020U
136 # define SSL_AES128 0x00000040U
137 # define SSL_AES256 0x00000080U
138 # define SSL_CAMELLIA128 0x00000100U
139 # define SSL_CAMELLIA256 0x00000200U
140 # define SSL_eGOST2814789CNT 0x00000400U
141 # define SSL_SEED 0x00000800U
142 # define SSL_AES128GCM 0x00001000U
143 # define SSL_AES256GCM 0x00002000U
144 # define SSL_AES128CCM 0x00004000U
145 # define SSL_AES256CCM 0x00008000U
146 # define SSL_AES128CCM8 0x00010000U
147 # define SSL_AES256CCM8 0x00020000U
148 # define SSL_eGOST2814789CNT12 0x00040000U
149 # define SSL_CHACHA20POLY1305 0x00080000U
150 # define SSL_ARIA128GCM 0x00100000U
151 # define SSL_ARIA256GCM 0x00200000U
152 # define SSL_MAGMA 0x00400000U
153 # define SSL_KUZNYECHIK 0x00800000U
155 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
156 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
157 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
158 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
159 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
160 # define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM)
161 # define SSL_ARIA (SSL_ARIAGCM)
162 # define SSL_CBC (SSL_DES | SSL_3DES | SSL_RC2 | SSL_IDEA \
163 | SSL_AES128 | SSL_AES256 | SSL_CAMELLIA128 \
164 | SSL_CAMELLIA256 | SSL_SEED)
166 /* Bits for algorithm_mac (symmetric authentication) */
168 # define SSL_MD5 0x00000001U
169 # define SSL_SHA1 0x00000002U
170 # define SSL_GOST94 0x00000004U
171 # define SSL_GOST89MAC 0x00000008U
172 # define SSL_SHA256 0x00000010U
173 # define SSL_SHA384 0x00000020U
174 /* Not a real MAC, just an indication it is part of cipher */
175 # define SSL_AEAD 0x00000040U
176 # define SSL_GOST12_256 0x00000080U
177 # define SSL_GOST89MAC12 0x00000100U
178 # define SSL_GOST12_512 0x00000200U
179 # define SSL_MAGMAOMAC 0x00000400U
180 # define SSL_KUZNYECHIKOMAC 0x00000800U
183 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
184 * sure to update this constant too
187 # define SSL_MD_MD5_IDX 0
188 # define SSL_MD_SHA1_IDX 1
189 # define SSL_MD_GOST94_IDX 2
190 # define SSL_MD_GOST89MAC_IDX 3
191 # define SSL_MD_SHA256_IDX 4
192 # define SSL_MD_SHA384_IDX 5
193 # define SSL_MD_GOST12_256_IDX 6
194 # define SSL_MD_GOST89MAC12_IDX 7
195 # define SSL_MD_GOST12_512_IDX 8
196 # define SSL_MD_MD5_SHA1_IDX 9
197 # define SSL_MD_SHA224_IDX 10
198 # define SSL_MD_SHA512_IDX 11
199 # define SSL_MD_MAGMAOMAC_IDX 12
200 # define SSL_MD_KUZNYECHIKOMAC_IDX 13
201 # define SSL_MAX_DIGEST 14
203 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
205 /* Bits for algorithm2 (handshake digests and other extra flags) */
207 /* Bits 0-7 are handshake MAC */
208 # define SSL_HANDSHAKE_MAC_MASK 0xFF
209 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
210 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
211 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
212 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
213 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
214 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
215 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
217 /* Bits 8-15 bits are PRF */
218 # define TLS1_PRF_DGST_SHIFT 8
219 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
220 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
221 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
222 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
223 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
224 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
225 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
228 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
229 * goes into algorithm2)
231 # define TLS1_STREAM_MAC 0x10000
233 * TLSTREE cipher/mac key derivation from draft-smyshlyaev-tls12-gost-suites
234 * (currently this also goes into algorithm2)
236 # define TLS1_TLSTREE 0x20000
238 # define SSL_STRONG_MASK 0x0000001FU
239 # define SSL_DEFAULT_MASK 0X00000020U
241 # define SSL_STRONG_NONE 0x00000001U
242 # define SSL_LOW 0x00000002U
243 # define SSL_MEDIUM 0x00000004U
244 # define SSL_HIGH 0x00000008U
245 # define SSL_FIPS 0x00000010U
246 # define SSL_NOT_DEFAULT 0x00000020U
248 /* we have used 0000003f - 26 bits left to go */
250 /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
251 # define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
253 /* Check if an SSL structure is using DTLS */
254 # define SSL_CONNECTION_IS_DTLS(s) \
255 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
257 /* Check if we are using TLSv1.3 */
258 # define SSL_CONNECTION_IS_TLS13(s) (!SSL_CONNECTION_IS_DTLS(s) \
259 && SSL_CONNECTION_GET_SSL(s)->method->version >= TLS1_3_VERSION \
260 && SSL_CONNECTION_GET_SSL(s)->method->version != TLS_ANY_VERSION)
262 # define SSL_CONNECTION_TREAT_AS_TLS13(s) \
263 (SSL_CONNECTION_IS_TLS13(s) \
264 || (s)->early_data_state == SSL_EARLY_DATA_CONNECTING \
265 || (s)->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY \
266 || (s)->early_data_state == SSL_EARLY_DATA_WRITING \
267 || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \
268 || (s)->hello_retry_request == SSL_HRR_PENDING)
270 # define SSL_IS_FIRST_HANDSHAKE(s) ((s)->s3.tmp.finish_md_len == 0 \
271 || (s)->s3.tmp.peer_finish_md_len == 0)
273 /* See if we need explicit IV */
274 # define SSL_USE_EXPLICIT_IV(s) \
275 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
277 * See if we use signature algorithms extension and signature algorithm
280 # define SSL_USE_SIGALGS(s) \
281 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
283 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
284 * apply to others in future.
286 # define SSL_USE_TLS1_2_CIPHERS(s) \
287 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
289 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
290 * flags because it may not be set to correct version yet.
292 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
293 ((!SSL_CONNECTION_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
294 (SSL_CONNECTION_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
296 * Determine if a client should send signature algorithms extension:
297 * as with TLS1.2 cipher we can't rely on method flags.
299 # define SSL_CLIENT_USE_SIGALGS(s) \
300 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
302 # define IS_MAX_FRAGMENT_LENGTH_EXT_VALID(value) \
303 (((value) >= TLSEXT_max_fragment_length_512) && \
304 ((value) <= TLSEXT_max_fragment_length_4096))
305 # define USE_MAX_FRAGMENT_LENGTH_EXT(session) \
306 IS_MAX_FRAGMENT_LENGTH_EXT_VALID(session->ext.max_fragment_len_mode)
307 # define GET_MAX_FRAGMENT_LENGTH(session) \
308 (512U << (session->ext.max_fragment_len_mode - 1))
310 # define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ)
311 # define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE)
313 /* alert_dispatch values */
315 /* No alert pending */
316 # define SSL_ALERT_DISPATCH_NONE 0
318 # define SSL_ALERT_DISPATCH_PENDING 1
319 /* Pending alert write needs to be retried */
320 # define SSL_ALERT_DISPATCH_RETRY 2
322 /* Mostly for SSLv3 */
323 # define SSL_PKEY_RSA 0
324 # define SSL_PKEY_RSA_PSS_SIGN 1
325 # define SSL_PKEY_DSA_SIGN 2
326 # define SSL_PKEY_ECC 3
327 # define SSL_PKEY_GOST01 4
328 # define SSL_PKEY_GOST12_256 5
329 # define SSL_PKEY_GOST12_512 6
330 # define SSL_PKEY_ED25519 7
331 # define SSL_PKEY_ED448 8
332 # define SSL_PKEY_NUM 9
334 # define SSL_ENC_DES_IDX 0
335 # define SSL_ENC_3DES_IDX 1
336 # define SSL_ENC_RC4_IDX 2
337 # define SSL_ENC_RC2_IDX 3
338 # define SSL_ENC_IDEA_IDX 4
339 # define SSL_ENC_NULL_IDX 5
340 # define SSL_ENC_AES128_IDX 6
341 # define SSL_ENC_AES256_IDX 7
342 # define SSL_ENC_CAMELLIA128_IDX 8
343 # define SSL_ENC_CAMELLIA256_IDX 9
344 # define SSL_ENC_GOST89_IDX 10
345 # define SSL_ENC_SEED_IDX 11
346 # define SSL_ENC_AES128GCM_IDX 12
347 # define SSL_ENC_AES256GCM_IDX 13
348 # define SSL_ENC_AES128CCM_IDX 14
349 # define SSL_ENC_AES256CCM_IDX 15
350 # define SSL_ENC_AES128CCM8_IDX 16
351 # define SSL_ENC_AES256CCM8_IDX 17
352 # define SSL_ENC_GOST8912_IDX 18
353 # define SSL_ENC_CHACHA_IDX 19
354 # define SSL_ENC_ARIA128GCM_IDX 20
355 # define SSL_ENC_ARIA256GCM_IDX 21
356 # define SSL_ENC_MAGMA_IDX 22
357 # define SSL_ENC_KUZNYECHIK_IDX 23
358 # define SSL_ENC_NUM_IDX 24
361 * SSL_kRSA <- RSA_ENC
362 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
363 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
364 * SSL_aRSA <- RSA_ENC | RSA_SIGN
365 * SSL_aDSS <- DSA_SIGN
369 #define CERT_INVALID 0
370 #define CERT_PUBLIC_KEY 1
371 #define CERT_PRIVATE_KEY 2
374 /* Post-Handshake Authentication state */
377 SSL_PHA_EXT_SENT
, /* client-side only: extension sent */
378 SSL_PHA_EXT_RECEIVED
, /* server-side only: extension received */
379 SSL_PHA_REQUEST_PENDING
, /* server-side only: request pending */
380 SSL_PHA_REQUESTED
/* request received by client, or sent by server */
383 /* CipherSuite length. SSLv3 and all TLS versions. */
384 # define TLS_CIPHER_LEN 2
385 /* used to hold info on the particular ciphers used */
386 struct ssl_cipher_st
{
388 const char *name
; /* text name */
389 const char *stdname
; /* RFC name */
390 uint32_t id
; /* id, 4 bytes, first is version */
392 * changed in 1.0.0: these four used to be portions of a single value
395 uint32_t algorithm_mkey
; /* key exchange algorithm */
396 uint32_t algorithm_auth
; /* server authentication */
397 uint32_t algorithm_enc
; /* symmetric encryption */
398 uint32_t algorithm_mac
; /* symmetric authentication */
399 int min_tls
; /* minimum SSL/TLS protocol version */
400 int max_tls
; /* maximum SSL/TLS protocol version */
401 int min_dtls
; /* minimum DTLS protocol version */
402 int max_dtls
; /* maximum DTLS protocol version */
403 uint32_t algo_strength
; /* strength and export flags */
404 uint32_t algorithm2
; /* Extra flags */
405 int32_t strength_bits
; /* Number of bits really used */
406 uint32_t alg_bits
; /* Number of bits for algorithm */
409 /* Used to hold SSL/TLS functions */
410 struct ssl_method_st
{
414 SSL
*(*ssl_new
) (SSL_CTX
*ctx
);
415 void (*ssl_free
) (SSL
*s
);
416 int (*ssl_reset
) (SSL
*s
);
417 int (*ssl_init
) (SSL
*s
);
418 int (*ssl_clear
) (SSL
*s
);
419 void (*ssl_deinit
) (SSL
*s
);
420 int (*ssl_accept
) (SSL
*s
);
421 int (*ssl_connect
) (SSL
*s
);
422 int (*ssl_read
) (SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
423 int (*ssl_peek
) (SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
424 int (*ssl_write
) (SSL
*s
, const void *buf
, size_t len
, size_t *written
);
425 int (*ssl_shutdown
) (SSL
*s
);
426 int (*ssl_renegotiate
) (SSL
*s
);
427 int (*ssl_renegotiate_check
) (SSL
*s
, int);
428 int (*ssl_read_bytes
) (SSL
*s
, int type
, int *recvd_type
,
429 unsigned char *buf
, size_t len
, int peek
,
431 int (*ssl_write_bytes
) (SSL
*s
, int type
, const void *buf_
, size_t len
,
433 int (*ssl_dispatch_alert
) (SSL
*s
);
434 long (*ssl_ctrl
) (SSL
*s
, int cmd
, long larg
, void *parg
);
435 long (*ssl_ctx_ctrl
) (SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
);
436 const SSL_CIPHER
*(*get_cipher_by_char
) (const unsigned char *ptr
);
437 int (*put_cipher_by_char
) (const SSL_CIPHER
*cipher
, WPACKET
*pkt
,
439 size_t (*ssl_pending
) (const SSL
*s
);
440 int (*num_ciphers
) (void);
441 const SSL_CIPHER
*(*get_cipher
) (unsigned ncipher
);
442 OSSL_TIME (*get_timeout
) (void);
443 const struct ssl3_enc_method
*ssl3_enc
; /* Extra SSLv3/TLS stuff */
444 int (*ssl_version
) (void);
445 long (*ssl_callback_ctrl
) (SSL
*s
, int cb_id
, void (*fp
) (void));
446 long (*ssl_ctx_callback_ctrl
) (SSL_CTX
*s
, int cb_id
, void (*fp
) (void));
450 * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for
451 * consistency, even in the event of OPENSSL_NO_PSK being defined.
453 # define TLS13_MAX_RESUMPTION_PSK_LENGTH 512
456 * Lets make this into an ASN.1 type structure as follows
457 * SSL_SESSION_ID ::= SEQUENCE {
458 * version INTEGER, -- structure version number
459 * SSLversion INTEGER, -- SSL version number
460 * Cipher OCTET STRING, -- the 3 byte cipher ID
461 * Session_ID OCTET STRING, -- the Session ID
462 * Master_key OCTET STRING, -- the master key
463 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
464 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
465 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
466 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
467 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
468 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
469 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
470 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
471 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
472 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
473 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
474 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
475 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
476 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
478 * Look in ssl/ssl_asn1.c for more details
479 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
481 struct ssl_session_st
{
482 int ssl_version
; /* what ssl version session info is being kept
484 size_t master_key_length
;
486 /* TLSv1.3 early_secret used for external PSKs */
487 unsigned char early_secret
[EVP_MAX_MD_SIZE
];
489 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
492 unsigned char master_key
[TLS13_MAX_RESUMPTION_PSK_LENGTH
];
493 /* session_id - valid? */
494 size_t session_id_length
;
495 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
497 * this is used to determine whether the session is being reused in the
498 * appropriate context. It is up to the application to set this, via
501 size_t sid_ctx_length
;
502 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
503 # ifndef OPENSSL_NO_PSK
504 char *psk_identity_hint
;
508 * Used to indicate that session resumption is not allowed. Applications
509 * can also set this bit for a new session via not_resumable_session_cb
510 * to disable session caching and tickets.
513 /* This is the cert and type for the other end. */
515 /* Certificate chain peer sent. */
516 STACK_OF(X509
) *peer_chain
;
518 * when app_verify_callback accepts a session where the peer's
519 * certificate is not ok, we must remember the error for session reuse:
521 long verify_result
; /* only for servers */
522 CRYPTO_REF_COUNT references
;
525 OSSL_TIME calc_timeout
;
526 unsigned int compress_meth
; /* Need to lookup the method */
527 const SSL_CIPHER
*cipher
;
528 unsigned long cipher_id
; /* when ASN.1 loaded, this needs to be used to
529 * load the 'cipher' structure */
530 unsigned int kex_group
; /* TLS group from key exchange */
531 CRYPTO_EX_DATA ex_data
; /* application specific data */
533 * These are used to make removal of session-ids more efficient and to
534 * implement a maximum cache size.
536 struct ssl_session_st
*prev
, *next
;
541 unsigned char *tick
; /* Session ticket */
542 size_t ticklen
; /* Session ticket length */
543 /* Session lifetime hint in seconds */
544 unsigned long tick_lifetime_hint
;
545 uint32_t tick_age_add
;
546 /* Max number of bytes that can be sent as early data */
547 uint32_t max_early_data
;
548 /* The ALPN protocol selected for this session */
549 unsigned char *alpn_selected
;
550 size_t alpn_selected_len
;
552 * Maximum Fragment Length as per RFC 4366.
553 * If this value does not contain RFC 4366 allowed values (1-4) then
554 * either the Maximum Fragment Length Negotiation failed or was not
557 uint8_t max_fragment_len_mode
;
559 # ifndef OPENSSL_NO_SRP
562 unsigned char *ticket_appdata
;
563 size_t ticket_appdata_len
;
569 /* Extended master secret support */
570 # define SSL_SESS_FLAG_EXTMS 0x1
572 # ifndef OPENSSL_NO_SRP
574 typedef struct srp_ctx_st
{
575 /* param for all the callbacks */
577 /* set client Hello login callback */
578 int (*TLS_ext_srp_username_callback
) (SSL
*, int *, void *);
579 /* set SRP N/g param callback for verification */
580 int (*SRP_verify_param_callback
) (SSL
*, void *);
581 /* set SRP client passwd callback */
582 char *(*SRP_give_srp_client_pwd_callback
) (SSL
*, void *);
584 BIGNUM
*N
, *g
, *s
, *B
, *A
;
588 unsigned long srp_Mask
;
594 SSL_EARLY_DATA_NONE
= 0,
595 SSL_EARLY_DATA_CONNECT_RETRY
,
596 SSL_EARLY_DATA_CONNECTING
,
597 SSL_EARLY_DATA_WRITE_RETRY
,
598 SSL_EARLY_DATA_WRITING
,
599 SSL_EARLY_DATA_WRITE_FLUSH
,
600 SSL_EARLY_DATA_UNAUTH_WRITING
,
601 SSL_EARLY_DATA_FINISHED_WRITING
,
602 SSL_EARLY_DATA_ACCEPT_RETRY
,
603 SSL_EARLY_DATA_ACCEPTING
,
604 SSL_EARLY_DATA_READ_RETRY
,
605 SSL_EARLY_DATA_READING
,
606 SSL_EARLY_DATA_FINISHED_READING
607 } SSL_EARLY_DATA_STATE
;
610 * We check that the amount of unreadable early data doesn't exceed
611 * max_early_data. max_early_data is given in plaintext bytes. However if it is
612 * unreadable then we only know the number of ciphertext bytes. We also don't
613 * know how much the overhead should be because it depends on the ciphersuite.
614 * We make a small allowance. We assume 5 records of actual data plus the end
615 * of early data alert record. Each record has a tag and a content type byte.
616 * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
617 * content of the alert record either which is 2 bytes.
619 # define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
622 * The allowance we have between the client's calculated ticket age and our own.
623 * We allow for 10 seconds. If a ticket is presented and the
624 * client's age calculation is different by more than this than our own then we
625 * do not allow that ticket for early_data.
627 # define TICKET_AGE_ALLOWANCE ossl_seconds2time(10)
629 #define MAX_COMPRESSIONS_SIZE 255
637 typedef struct raw_extension_st
{
638 /* Raw packet data for the extension */
640 /* Set to 1 if the extension is present or 0 otherwise */
642 /* Set to 1 if we have already parsed the extension or 0 otherwise */
644 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
646 /* Track what order extensions are received in (0-based). */
647 size_t received_order
;
652 unsigned int legacy_version
;
653 unsigned char random
[SSL3_RANDOM_SIZE
];
654 size_t session_id_len
;
655 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
656 size_t dtls_cookie_len
;
657 unsigned char dtls_cookie
[DTLS1_COOKIE_LENGTH
];
659 size_t compressions_len
;
660 unsigned char compressions
[MAX_COMPRESSIONS_SIZE
];
662 size_t pre_proc_exts_len
;
663 RAW_EXTENSION
*pre_proc_exts
;
667 * Extension index values NOTE: Any updates to these defines should be mirrored
668 * with equivalent updates to ext_defs in extensions.c
670 typedef enum tlsext_index_en
{
671 TLSEXT_IDX_renegotiate
,
672 TLSEXT_IDX_server_name
,
673 TLSEXT_IDX_max_fragment_length
,
675 TLSEXT_IDX_ec_point_formats
,
676 TLSEXT_IDX_supported_groups
,
677 TLSEXT_IDX_session_ticket
,
678 TLSEXT_IDX_status_request
,
679 TLSEXT_IDX_next_proto_neg
,
680 TLSEXT_IDX_application_layer_protocol_negotiation
,
682 TLSEXT_IDX_encrypt_then_mac
,
683 TLSEXT_IDX_signed_certificate_timestamp
,
684 TLSEXT_IDX_extended_master_secret
,
685 TLSEXT_IDX_signature_algorithms_cert
,
686 TLSEXT_IDX_post_handshake_auth
,
687 TLSEXT_IDX_signature_algorithms
,
688 TLSEXT_IDX_supported_versions
,
689 TLSEXT_IDX_psk_kex_modes
,
690 TLSEXT_IDX_key_share
,
692 TLSEXT_IDX_cryptopro_bug
,
693 TLSEXT_IDX_compress_certificate
,
694 TLSEXT_IDX_early_data
,
695 TLSEXT_IDX_certificate_authorities
,
698 /* Dummy index - must always be the last entry */
699 TLSEXT_IDX_num_builtins
702 DEFINE_LHASH_OF_EX(SSL_SESSION
);
703 /* Needed in ssl_cert.c */
704 DEFINE_LHASH_OF_EX(X509_NAME
);
706 # define TLSEXT_KEYNAME_LENGTH 16
707 # define TLSEXT_TICK_KEY_LENGTH 32
709 typedef struct ssl_ctx_ext_secure_st
{
710 unsigned char tick_hmac_key
[TLSEXT_TICK_KEY_LENGTH
];
711 unsigned char tick_aes_key
[TLSEXT_TICK_KEY_LENGTH
];
712 } SSL_CTX_EXT_SECURE
;
715 * Helper function for HMAC
716 * The structure should be considered opaque, it will change once the low
717 * level deprecated calls are removed. At that point it can be replaced
718 * by EVP_MAC_CTX and most of the functions converted to macros or inlined
721 typedef struct ssl_hmac_st
{
723 # ifndef OPENSSL_NO_DEPRECATED_3_0
728 SSL_HMAC
*ssl_hmac_new(const SSL_CTX
*ctx
);
729 void ssl_hmac_free(SSL_HMAC
*ctx
);
730 # ifndef OPENSSL_NO_DEPRECATED_3_0
731 HMAC_CTX
*ssl_hmac_get0_HMAC_CTX(SSL_HMAC
*ctx
);
733 EVP_MAC_CTX
*ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC
*ctx
);
734 int ssl_hmac_init(SSL_HMAC
*ctx
, void *key
, size_t len
, char *md
);
735 int ssl_hmac_update(SSL_HMAC
*ctx
, const unsigned char *data
, size_t len
);
736 int ssl_hmac_final(SSL_HMAC
*ctx
, unsigned char *md
, size_t *len
,
738 size_t ssl_hmac_size(const SSL_HMAC
*ctx
);
740 int ssl_get_EC_curve_nid(const EVP_PKEY
*pkey
);
741 __owur
int tls13_set_encoded_pub_key(EVP_PKEY
*pkey
,
742 const unsigned char *enckey
,
745 typedef struct tls_group_info_st
{
746 char *tlsname
; /* Curve Name as in TLS specs */
747 char *realname
; /* Curve Name according to provider */
748 char *algorithm
; /* Algorithm name to fetch */
749 unsigned int secbits
; /* Bits of security (from SP800-57) */
750 uint16_t group_id
; /* Group ID */
751 int mintls
; /* Minimum TLS version, -1 unsupported */
752 int maxtls
; /* Maximum TLS version (or 0 for undefined) */
753 int mindtls
; /* Minimum DTLS version, -1 unsupported */
754 int maxdtls
; /* Maximum DTLS version (or 0 for undefined) */
755 char is_kem
; /* Mode for this Group: 0 is KEX, 1 is KEM */
758 typedef struct tls_sigalg_info_st
{
759 char *name
; /* name as in IANA TLS specs */
760 uint16_t code_point
; /* IANA-specified code point of sigalg-name */
761 char *sigalg_name
; /* (combined) sigalg name */
762 char *sigalg_oid
; /* (combined) sigalg OID */
763 char *sig_name
; /* pure signature algorithm name */
764 char *sig_oid
; /* pure signature algorithm OID */
765 char *hash_name
; /* hash algorithm name */
766 char *hash_oid
; /* hash algorithm OID */
767 char *keytype
; /* keytype name */
768 char *keytype_oid
; /* keytype OID */
769 unsigned int secbits
; /* Bits of security (from SP800-57) */
770 int mintls
; /* Minimum TLS version, -1 unsupported */
771 int maxtls
; /* Maximum TLS version (or 0 for undefined) */
775 * Structure containing table entry of certificate info corresponding to
779 int nid
; /* NID of public key algorithm */
780 uint32_t amask
; /* authmask corresponding to key type */
784 # define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */
785 # define TLS_GROUP_CURVE_PRIME 0x00000001U
786 # define TLS_GROUP_CURVE_CHAR2 0x00000002U
787 # define TLS_GROUP_CURVE_CUSTOM 0x00000004U
788 # define TLS_GROUP_FFDHE 0x00000008U
789 # define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U
791 # define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3)
794 OSSL_LIB_CTX
*libctx
;
796 const SSL_METHOD
*method
;
797 STACK_OF(SSL_CIPHER
) *cipher_list
;
798 /* same as above but sorted for lookup */
799 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
800 /* TLSv1.3 specific ciphersuites */
801 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
;
802 struct x509_store_st
/* X509_STORE */ *cert_store
;
803 LHASH_OF(SSL_SESSION
) *sessions
;
805 * Most session-ids that will be cached, default is
806 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
808 size_t session_cache_size
;
809 struct ssl_session_st
*session_cache_head
;
810 struct ssl_session_st
*session_cache_tail
;
812 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
813 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
814 * means only SSL_accept will cache SSL_SESSIONS.
816 uint32_t session_cache_mode
;
818 * If timeout is not 0, it is the default timeout value set when
819 * SSL_new() is called. This has been put in to make life easier to set
822 OSSL_TIME session_timeout
;
824 * If this callback is not null, it will be called each time a session id
825 * is added to the cache. If this function returns 1, it means that the
826 * callback will do a SSL_SESSION_free() when it has finished using it.
827 * Otherwise, on 0, it means the callback has finished with it. If
828 * remove_session_cb is not null, it will be called when a session-id is
829 * removed from the cache. After the call, OpenSSL will
830 * SSL_SESSION_free() it.
832 int (*new_session_cb
) (struct ssl_st
*ssl
, SSL_SESSION
*sess
);
833 void (*remove_session_cb
) (struct ssl_ctx_st
*ctx
, SSL_SESSION
*sess
);
834 SSL_SESSION
*(*get_session_cb
) (struct ssl_st
*ssl
,
835 const unsigned char *data
, int len
,
838 TSAN_QUALIFIER
int sess_connect
; /* SSL new conn - started */
839 TSAN_QUALIFIER
int sess_connect_renegotiate
; /* SSL reneg - requested */
840 TSAN_QUALIFIER
int sess_connect_good
; /* SSL new conne/reneg - finished */
841 TSAN_QUALIFIER
int sess_accept
; /* SSL new accept - started */
842 TSAN_QUALIFIER
int sess_accept_renegotiate
; /* SSL reneg - requested */
843 TSAN_QUALIFIER
int sess_accept_good
; /* SSL accept/reneg - finished */
844 TSAN_QUALIFIER
int sess_miss
; /* session lookup misses */
845 TSAN_QUALIFIER
int sess_timeout
; /* reuse attempt on timeouted session */
846 TSAN_QUALIFIER
int sess_cache_full
; /* session removed due to full cache */
847 TSAN_QUALIFIER
int sess_hit
; /* session reuse actually done */
848 TSAN_QUALIFIER
int sess_cb_hit
; /* session-id that was not in
849 * the cache was passed back via
850 * the callback. This indicates
851 * that the application is
852 * supplying session-id's from
853 * other processes - spooky
856 #ifdef TSAN_REQUIRES_LOCKING
857 CRYPTO_RWLOCK
*tsan_lock
;
860 CRYPTO_REF_COUNT references
;
862 /* if defined, these override the X509_verify_cert() calls */
863 int (*app_verify_callback
) (X509_STORE_CTX
*, void *);
864 void *app_verify_arg
;
866 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
867 * ('app_verify_callback' was called with just one argument)
870 /* Default password callback. */
871 pem_password_cb
*default_passwd_callback
;
873 /* Default password callback user data. */
874 void *default_passwd_callback_userdata
;
876 /* get client cert callback */
877 int (*client_cert_cb
) (SSL
*ssl
, X509
**x509
, EVP_PKEY
**pkey
);
879 /* cookie generate callback */
880 int (*app_gen_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
881 unsigned int *cookie_len
);
883 /* verify cookie callback */
884 int (*app_verify_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
885 unsigned int cookie_len
);
887 /* TLS1.3 app-controlled cookie generate callback */
888 int (*gen_stateless_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
891 /* TLS1.3 verify app-controlled cookie callback */
892 int (*verify_stateless_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
895 CRYPTO_EX_DATA ex_data
;
897 const EVP_MD
*md5
; /* For SSLv3/TLSv1 'ssl3-md5' */
898 const EVP_MD
*sha1
; /* For SSLv3/TLSv1 'ssl3-sha1' */
900 STACK_OF(X509
) *extra_certs
;
901 STACK_OF(SSL_COMP
) *comp_methods
; /* stack of SSL_COMP, SSLv3/TLSv1 */
903 /* Default values used when no per-SSL value is defined follow */
905 /* used if SSL's info_callback is NULL */
906 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
909 * What we put in certificate_authorities extension for TLS 1.3
910 * (ClientHello and CertificateRequest) or just client cert requests for
911 * earlier versions. If client_ca_names is populated then it is only used
912 * for client cert requests, and in preference to ca_names.
914 STACK_OF(X509_NAME
) *ca_names
;
915 STACK_OF(X509_NAME
) *client_ca_names
;
918 * Default values to use in SSL structures follow (these are copied by
924 int min_proto_version
;
925 int max_proto_version
;
926 size_t max_cert_list
;
928 struct cert_st
/* CERT */ *cert
;
929 SSL_CERT_LOOKUP
*ssl_cert_info
;
932 /* callback that allows applications to peek at protocol messages */
933 void (*msg_callback
) (int write_p
, int version
, int content_type
,
934 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
935 void *msg_callback_arg
;
937 uint32_t verify_mode
;
938 size_t sid_ctx_length
;
939 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
940 /* called 'verify_callback' in the SSL */
941 int (*default_verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
943 /* Default generate session ID callback. */
944 GEN_SESSION_CB generate_session_id
;
946 X509_VERIFY_PARAM
*param
;
950 # ifndef OPENSSL_NO_CT
951 CTLOG_STORE
*ctlog_store
; /* CT Log Store */
953 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
954 * If they are not, the connection should be aborted.
956 ssl_ct_validation_cb ct_validation_callback
;
957 void *ct_validation_callback_arg
;
961 * If we're using more than one pipeline how should we divide the data
962 * up between the pipes?
964 size_t split_send_fragment
;
966 * Maximum amount of data to send in one fragment. actual record size can
967 * be more than this due to padding and MAC overheads.
969 size_t max_send_fragment
;
971 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
972 size_t max_pipelines
;
974 /* The default read buffer length to use (0 means not set) */
975 size_t default_read_buf_len
;
977 # ifndef OPENSSL_NO_ENGINE
979 * Engine to pass requests for client certs to
981 ENGINE
*client_cert_engine
;
984 /* ClientHello callback. Mostly for extensions, but not entirely. */
985 SSL_client_hello_cb_fn client_hello_cb
;
986 void *client_hello_cb_arg
;
988 /* TLS extensions. */
990 /* TLS extensions servername callback */
991 int (*servername_cb
) (SSL
*, int *, void *);
992 void *servername_arg
;
993 /* RFC 4507 session ticket keys */
994 unsigned char tick_key_name
[TLSEXT_KEYNAME_LENGTH
];
995 SSL_CTX_EXT_SECURE
*secure
;
996 # ifndef OPENSSL_NO_DEPRECATED_3_0
997 /* Callback to support customisation of ticket key setting */
998 int (*ticket_key_cb
) (SSL
*ssl
,
999 unsigned char *name
, unsigned char *iv
,
1000 EVP_CIPHER_CTX
*ectx
, HMAC_CTX
*hctx
, int enc
);
1002 int (*ticket_key_evp_cb
) (SSL
*ssl
,
1003 unsigned char *name
, unsigned char *iv
,
1004 EVP_CIPHER_CTX
*ectx
, EVP_MAC_CTX
*hctx
,
1007 /* certificate status request info */
1008 /* Callback for status request */
1009 int (*status_cb
) (SSL
*ssl
, void *arg
);
1011 /* ext status type used for CSR extension (OCSP Stapling) */
1013 /* RFC 4366 Maximum Fragment Length Negotiation */
1014 uint8_t max_fragment_len_mode
;
1016 /* EC extension values inherited by SSL structure */
1017 size_t ecpointformats_len
;
1018 unsigned char *ecpointformats
;
1020 size_t supportedgroups_len
;
1021 uint16_t *supportedgroups
;
1023 uint16_t *supported_groups_default
;
1024 size_t supported_groups_default_len
;
1026 * ALPN information (we are in the process of transitioning from NPN to
1031 * For a server, this contains a callback function that allows the
1032 * server to select the protocol for the connection.
1033 * out: on successful return, this must point to the raw protocol
1034 * name (without the length prefix).
1035 * outlen: on successful return, this contains the length of |*out|.
1036 * in: points to the client's list of supported protocols in
1038 * inlen: the length of |in|.
1040 int (*alpn_select_cb
) (SSL
*s
,
1041 const unsigned char **out
,
1042 unsigned char *outlen
,
1043 const unsigned char *in
,
1044 unsigned int inlen
, void *arg
);
1045 void *alpn_select_cb_arg
;
1048 * For a client, this contains the list of supported protocols in wire
1051 unsigned char *alpn
;
1054 # ifndef OPENSSL_NO_NEXTPROTONEG
1055 /* Next protocol negotiation information */
1058 * For a server, this contains a callback function by which the set of
1059 * advertised protocols can be provided.
1061 SSL_CTX_npn_advertised_cb_func npn_advertised_cb
;
1062 void *npn_advertised_cb_arg
;
1064 * For a client, this contains a callback function that selects the next
1065 * protocol from the list provided by the server.
1067 SSL_CTX_npn_select_cb_func npn_select_cb
;
1068 void *npn_select_cb_arg
;
1071 unsigned char cookie_hmac_key
[SHA256_DIGEST_LENGTH
];
1074 # ifndef OPENSSL_NO_PSK
1075 SSL_psk_client_cb_func psk_client_callback
;
1076 SSL_psk_server_cb_func psk_server_callback
;
1078 SSL_psk_find_session_cb_func psk_find_session_cb
;
1079 SSL_psk_use_session_cb_func psk_use_session_cb
;
1081 # ifndef OPENSSL_NO_SRP
1082 SRP_CTX srp_ctx
; /* ctx for SRP authentication */
1085 /* Shared DANE context */
1086 struct dane_ctx_st dane
;
1088 # ifndef OPENSSL_NO_SRTP
1089 /* SRTP profiles we are willing to do from RFC 5764 */
1090 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1093 * Callback for disabling session caching and ticket support on a session
1094 * basis, depending on the chosen cipher.
1096 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1098 CRYPTO_RWLOCK
*lock
;
1101 * Callback for logging key material for use with debugging tools like
1102 * Wireshark. The callback should log `line` followed by a newline.
1104 SSL_CTX_keylog_cb_func keylog_callback
;
1107 * The maximum number of bytes advertised in session tickets that can be
1108 * sent as early data.
1110 uint32_t max_early_data
;
1113 * The maximum number of bytes of early data that a server will tolerate
1114 * (which should be at least as much as max_early_data).
1116 uint32_t recv_max_early_data
;
1118 /* TLS1.3 padding callback */
1119 size_t (*record_padding_cb
)(SSL
*s
, int type
, size_t len
, void *arg
);
1120 void *record_padding_arg
;
1121 size_t block_padding
;
1123 /* Session ticket appdata */
1124 SSL_CTX_generate_session_ticket_fn generate_ticket_cb
;
1125 SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb
;
1126 void *ticket_cb_data
;
1128 /* The number of TLS1.3 tickets to automatically send */
1131 /* Callback to determine if early_data is acceptable or not */
1132 SSL_allow_early_data_cb_fn allow_early_data_cb
;
1133 void *allow_early_data_cb_data
;
1135 /* Do we advertise Post-handshake auth support? */
1138 /* Callback for SSL async handling */
1139 SSL_async_callback_fn async_cb
;
1144 int ssl_mac_pkey_id
[SSL_MD_NUM_IDX
];
1145 const EVP_CIPHER
*ssl_cipher_methods
[SSL_ENC_NUM_IDX
];
1146 const EVP_MD
*ssl_digest_methods
[SSL_MD_NUM_IDX
];
1147 size_t ssl_mac_secret_size
[SSL_MD_NUM_IDX
];
1149 size_t tls12_sigalgs_len
;
1150 /* Cache of all sigalgs we know and whether they are available or not */
1151 struct sigalg_lookup_st
*sigalg_lookup_cache
;
1152 /* List of all sigalgs (code points) available, incl. from providers */
1153 uint16_t *tls12_sigalgs
;
1155 TLS_GROUP_INFO
*group_list
;
1156 size_t group_list_len
;
1157 size_t group_list_max_len
;
1159 TLS_SIGALG_INFO
*sigalg_list
;
1160 size_t sigalg_list_len
;
1161 size_t sigalg_list_max_len
;
1163 /* masks of disabled algorithms */
1164 uint32_t disabled_enc_mask
;
1165 uint32_t disabled_mac_mask
;
1166 uint32_t disabled_mkey_mask
;
1167 uint32_t disabled_auth_mask
;
1169 #ifndef OPENSSL_NO_COMP_ALG
1170 /* certificate compression preferences */
1171 int cert_comp_prefs
[TLSEXT_comp_cert_limit
];
1175 typedef struct cert_pkey_st CERT_PKEY
;
1177 #define SSL_TYPE_SSL_CONNECTION 0
1178 #define SSL_TYPE_QUIC_CONNECTION 1
1179 #define SSL_TYPE_QUIC_STREAM 2
1184 const SSL_METHOD
*defltmeth
;
1185 const SSL_METHOD
*method
;
1186 CRYPTO_REF_COUNT references
;
1187 CRYPTO_RWLOCK
*lock
;
1188 /* extra application data */
1189 CRYPTO_EX_DATA ex_data
;
1192 struct ssl_connection_st
{
1193 /* type identifier and common data */
1196 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
1201 * There are 2 BIO's even though they are normally both the same. This
1202 * is so data can be read and written to different handlers
1204 /* used by SSL_read */
1206 /* used by SSL_write */
1208 /* used during session-id reuse to concatenate messages */
1211 * This holds a variable that indicates what we were doing when a 0 or -1
1212 * is returned. This is needed for non-blocking IO so we know what
1213 * request needs re-doing when in SSL_accept or SSL_connect
1216 int (*handshake_func
) (SSL
*);
1218 * Imagine that here's a boolean member "init" that is switched as soon
1219 * as SSL_set_{accept/connect}_state is called for the first time, so
1220 * that "state" and "handshake_func" are properly initialized. But as
1221 * handshake_func is == 0 until then, we use this test instead of an
1224 /* are we the server side? */
1227 * Generate a new session or reuse an old one.
1228 * NB: For servers, the 'new' session may actually be a previously
1229 * cached session or even the previous session unless
1230 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1233 /* don't send shutdown packets */
1235 /* we have shut things down, 0x01 sent, 0x02 for received */
1239 SSL_EARLY_DATA_STATE early_data_state
;
1240 BUF_MEM
*init_buf
; /* buffer used during init */
1241 void *init_msg
; /* pointer to handshake message body, set by
1242 * ssl3_get_message() */
1243 size_t init_num
; /* amount read/written */
1244 size_t init_off
; /* amount read/written */
1246 size_t ssl_pkey_num
;
1250 unsigned char server_random
[SSL3_RANDOM_SIZE
];
1251 unsigned char client_random
[SSL3_RANDOM_SIZE
];
1253 /* used during startup, digest all incoming/outgoing packets */
1254 BIO
*handshake_buffer
;
1256 * When handshake digest is determined, buffer is hashed and
1257 * freed and MD_CTX for the required digest is stored here.
1259 EVP_MD_CTX
*handshake_dgst
;
1261 * Set whenever an expected ChangeCipherSpec message is processed.
1262 * Unset when the peer's Finished message is received.
1263 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1265 int change_cipher_spec
;
1269 * we allow one fatal and one warning alert to be outstanding, send close
1270 * alert via the warning alert
1273 unsigned char send_alert
[2];
1275 * This flag is set when we should renegotiate ASAP, basically when there
1276 * is no more data in the read or write buffers
1279 int total_renegotiations
;
1280 int num_renegotiations
;
1281 int in_read_app_data
;
1284 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1285 unsigned char finish_md
[EVP_MAX_MD_SIZE
* 2];
1286 size_t finish_md_len
;
1287 unsigned char peer_finish_md
[EVP_MAX_MD_SIZE
* 2];
1288 size_t peer_finish_md_len
;
1289 size_t message_size
;
1291 /* used to hold the new cipher we are going to use */
1292 const SSL_CIPHER
*new_cipher
;
1293 EVP_PKEY
*pkey
; /* holds short lived key exchange key */
1294 /* used for certificate requests */
1296 /* Certificate types in certificate request message. */
1299 /* Certificate authorities list peer sent */
1300 STACK_OF(X509_NAME
) *peer_ca_names
;
1301 size_t key_block_length
;
1302 unsigned char *key_block
;
1303 const EVP_CIPHER
*new_sym_enc
;
1304 const EVP_MD
*new_hash
;
1305 int new_mac_pkey_type
;
1306 size_t new_mac_secret_size
;
1307 # ifndef OPENSSL_NO_COMP
1308 const SSL_COMP
*new_compression
;
1310 char *new_compression
;
1313 /* Raw values of the cipher list from a client */
1314 unsigned char *ciphers_raw
;
1315 size_t ciphers_rawlen
;
1316 /* Temporary storage for premaster secret */
1319 # ifndef OPENSSL_NO_PSK
1320 /* Temporary storage for PSK key */
1324 /* Signature algorithm we actually use */
1325 const struct sigalg_lookup_st
*sigalg
;
1326 /* Pointer to certificate we use */
1329 * signature algorithms peer reports: e.g. supported signature
1330 * algorithms extension for server or as part of a certificate
1331 * request for client.
1332 * Keep track of the algorithms for TLS and X.509 usage separately.
1334 uint16_t *peer_sigalgs
;
1335 uint16_t *peer_cert_sigalgs
;
1336 /* Size of above arrays */
1337 size_t peer_sigalgslen
;
1338 size_t peer_cert_sigalgslen
;
1339 /* Sigalg peer actually uses */
1340 const struct sigalg_lookup_st
*peer_sigalg
;
1342 * Set if corresponding CERT_PKEY can be used with current
1343 * SSL session: e.g. appropriate curve, signature algorithms etc.
1344 * If zero it can't be used at all.
1346 uint32_t *valid_flags
;
1348 * For servers the following masks are for the key and auth algorithms
1349 * that are supported by the certs below. For clients they are masks of
1350 * *disabled* algorithms based on the current session.
1355 * The following are used by the client to see if a cipher is allowed or
1356 * not. It contains the minimum and maximum version the client's using
1357 * based on what it knows so far.
1363 /* Connection binding to prevent renegotiation attacks */
1364 unsigned char previous_client_finished
[EVP_MAX_MD_SIZE
];
1365 size_t previous_client_finished_len
;
1366 unsigned char previous_server_finished
[EVP_MAX_MD_SIZE
];
1367 size_t previous_server_finished_len
;
1368 int send_connection_binding
;
1370 # ifndef OPENSSL_NO_NEXTPROTONEG
1372 * Set if we saw the Next Protocol Negotiation extension from our peer.
1378 * ALPN information (we are in the process of transitioning from NPN to
1383 * In a server these point to the selected ALPN protocol after the
1384 * ClientHello has been processed. In a client these contain the protocol
1385 * that the server selected once the ServerHello has been processed.
1387 unsigned char *alpn_selected
;
1388 size_t alpn_selected_len
;
1389 /* used by the server to know what options were proposed */
1390 unsigned char *alpn_proposed
;
1391 size_t alpn_proposed_len
;
1392 /* used by the client to know if it actually sent alpn */
1396 * This is set to true if we believe that this is a version of Safari
1397 * running on OS X 10.6 or newer. We wish to know this because Safari on
1398 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1400 char is_probably_safari
;
1403 * Track whether we did a key exchange this handshake or not, so
1404 * SSL_get_negotiated_group() knows whether to fall back to the
1405 * value in the SSL_SESSION.
1408 /* For clients: peer temporary key */
1409 /* The group_id for the key exchange key */
1415 struct dtls1_state_st
*d1
; /* DTLSv1 variables */
1416 /* callback that allows applications to peek at protocol messages */
1417 void (*msg_callback
) (int write_p
, int version
, int content_type
,
1418 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
1419 void *msg_callback_arg
;
1420 int hit
; /* reusing a previous session */
1421 X509_VERIFY_PARAM
*param
;
1422 /* Per connection DANE state */
1425 STACK_OF(SSL_CIPHER
) *peer_ciphers
;
1426 STACK_OF(SSL_CIPHER
) *cipher_list
;
1427 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
1428 /* TLSv1.3 specific ciphersuites */
1429 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
;
1431 * These are the ones being used, the ones in SSL_SESSION are the ones to
1432 * be 'copied' into these ones
1436 * The TLS1.3 secrets.
1438 unsigned char early_secret
[EVP_MAX_MD_SIZE
];
1439 unsigned char handshake_secret
[EVP_MAX_MD_SIZE
];
1440 unsigned char master_secret
[EVP_MAX_MD_SIZE
];
1441 unsigned char resumption_master_secret
[EVP_MAX_MD_SIZE
];
1442 unsigned char client_finished_secret
[EVP_MAX_MD_SIZE
];
1443 unsigned char server_finished_secret
[EVP_MAX_MD_SIZE
];
1444 unsigned char server_finished_hash
[EVP_MAX_MD_SIZE
];
1445 unsigned char handshake_traffic_hash
[EVP_MAX_MD_SIZE
];
1446 unsigned char client_app_traffic_secret
[EVP_MAX_MD_SIZE
];
1447 unsigned char server_app_traffic_secret
[EVP_MAX_MD_SIZE
];
1448 unsigned char exporter_master_secret
[EVP_MAX_MD_SIZE
];
1449 unsigned char early_exporter_master_secret
[EVP_MAX_MD_SIZE
];
1453 /* This is used to hold the server certificate used */
1454 struct cert_st
/* CERT */ *cert
;
1457 * The hash of all messages prior to the CertificateVerify, and the length
1460 unsigned char cert_verify_hash
[EVP_MAX_MD_SIZE
];
1461 size_t cert_verify_hash_len
;
1463 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1464 enum {SSL_HRR_NONE
= 0, SSL_HRR_PENDING
, SSL_HRR_COMPLETE
}
1465 hello_retry_request
;
1468 * the session_id_context is used to ensure sessions are only reused in
1469 * the appropriate context
1471 size_t sid_ctx_length
;
1472 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
1473 /* This can also be in the session once a session is established */
1474 SSL_SESSION
*session
;
1475 /* TLSv1.3 PSK session */
1476 SSL_SESSION
*psksession
;
1477 unsigned char *psksession_id
;
1478 size_t psksession_id_len
;
1479 /* Default generate session ID callback. */
1480 GEN_SESSION_CB generate_session_id
;
1482 * The temporary TLSv1.3 session id. This isn't really a session id at all
1483 * but is a random value sent in the legacy session id field.
1485 unsigned char tmp_session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
1486 size_t tmp_session_id_len
;
1489 * 0 don't care about verify failure.
1490 * 1 fail if verify fails
1492 uint32_t verify_mode
;
1493 /* fail if callback returns 0 */
1494 int (*verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
1495 /* optional informational callback */
1496 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
1497 /* error bytes to be written */
1501 # ifndef OPENSSL_NO_PSK
1502 SSL_psk_client_cb_func psk_client_callback
;
1503 SSL_psk_server_cb_func psk_server_callback
;
1505 SSL_psk_find_session_cb_func psk_find_session_cb
;
1506 SSL_psk_use_session_cb_func psk_use_session_cb
;
1508 /* Verified chain of peer */
1509 STACK_OF(X509
) *verified_chain
;
1512 * What we put in certificate_authorities extension for TLS 1.3
1513 * (ClientHello and CertificateRequest) or just client cert requests for
1514 * earlier versions. If client_ca_names is populated then it is only used
1515 * for client cert requests, and in preference to ca_names.
1517 STACK_OF(X509_NAME
) *ca_names
;
1518 STACK_OF(X509_NAME
) *client_ca_names
;
1519 /* protocol behaviour */
1523 int min_proto_version
;
1524 int max_proto_version
;
1525 size_t max_cert_list
;
1528 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1529 * secret and SSLv3/TLS (<=1.2) rollback check
1533 * If we're using more than one pipeline how should we divide the data
1534 * up between the pipes?
1536 size_t split_send_fragment
;
1538 * Maximum amount of data to send in one fragment. actual record size can
1539 * be more than this due to padding and MAC overheads.
1541 size_t max_send_fragment
;
1542 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1543 size_t max_pipelines
;
1546 /* Built-in extension flags */
1547 uint8_t extflags
[TLSEXT_IDX_num_builtins
];
1548 /* TLS extension debug callback */
1549 void (*debug_cb
)(SSL
*s
, int client_server
, int type
,
1550 const unsigned char *data
, int len
, void *arg
);
1553 /* certificate status request info */
1554 /* Status type or -1 if no status type */
1556 /* Raw extension data, if seen */
1557 unsigned char *scts
;
1558 /* Length of raw extension data, if seen */
1560 /* Expect OCSP CertificateStatus message */
1561 int status_expected
;
1564 /* OCSP status request only */
1565 STACK_OF(OCSP_RESPID
) *ids
;
1566 X509_EXTENSIONS
*exts
;
1567 /* OCSP response received or to be sent */
1568 unsigned char *resp
;
1572 /* RFC4507 session ticket expected to be received or sent */
1573 int ticket_expected
;
1574 /* TLS 1.3 tickets requested by the application. */
1575 int extra_tickets_expected
;
1576 size_t ecpointformats_len
;
1578 unsigned char *ecpointformats
;
1580 size_t peer_ecpointformats_len
;
1582 unsigned char *peer_ecpointformats
;
1583 size_t supportedgroups_len
;
1585 uint16_t *supportedgroups
;
1587 size_t peer_supportedgroups_len
;
1589 uint16_t *peer_supportedgroups
;
1591 /* TLS Session Ticket extension override */
1592 TLS_SESSION_TICKET_EXT
*session_ticket
;
1593 /* TLS Session Ticket extension callback */
1594 tls_session_ticket_ext_cb_fn session_ticket_cb
;
1595 void *session_ticket_cb_arg
;
1596 /* TLS pre-shared secret session resumption */
1597 tls_session_secret_cb_fn session_secret_cb
;
1598 void *session_secret_cb_arg
;
1600 * For a client, this contains the list of supported protocols in wire
1603 unsigned char *alpn
;
1606 * Next protocol negotiation. For the client, this is the protocol that
1607 * we sent in NextProtocol and is set when handling ServerHello
1608 * extensions. For a server, this is the client's selected_protocol from
1609 * NextProtocol and is set when handling the NextProtocol message, before
1610 * the Finished message.
1615 /* The available PSK key exchange modes */
1618 /* Set to one if we have negotiated ETM */
1621 /* Are we expecting to receive early data? */
1623 /* Is the session suitable for early data? */
1626 /* May be sent by a server in HRR. Must be echoed back in ClientHello */
1627 unsigned char *tls13_cookie
;
1628 size_t tls13_cookie_len
;
1629 /* Have we received a cookie from the client? */
1633 * Maximum Fragment Length as per RFC 4366.
1634 * If this member contains one of the allowed values (1-4)
1635 * then we should include Maximum Fragment Length Negotiation
1636 * extension in Client Hello.
1637 * Please note that value of this member does not have direct
1638 * effect. The actual (binding) value is stored in SSL_SESSION,
1639 * as this extension is optional on server side.
1641 uint8_t max_fragment_len_mode
;
1644 * On the client side the number of ticket identities we sent in the
1645 * ClientHello. On the server side the identity of the ticket we
1650 /* This is the list of algorithms the peer supports that we also support */
1651 int compress_certificate_from_peer
[TLSEXT_comp_cert_limit
];
1652 /* indicate that we sent the extension, so we'll accept it */
1653 int compress_certificate_sent
;
1657 * Parsed form of the ClientHello, kept around across client_hello_cb
1660 CLIENTHELLO_MSG
*clienthello
;
1663 * no further mod of servername
1664 * 0 : call the servername extension callback.
1665 * 1 : prepare 2, allow last ack just after in server callback.
1666 * 2 : don't call servername callback, no ack in server hello
1668 int servername_done
;
1669 # ifndef OPENSSL_NO_CT
1671 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1672 * If they are not, the connection should be aborted.
1674 ssl_ct_validation_cb ct_validation_callback
;
1675 /* User-supplied argument that is passed to the ct_validation_callback */
1676 void *ct_validation_callback_arg
;
1678 * Consolidated stack of SCTs from all sources.
1679 * Lazily populated by CT_get_peer_scts(SSL*)
1681 STACK_OF(SCT
) *scts
;
1682 /* Have we attempted to find/parse SCTs yet? */
1685 SSL_CTX
*session_ctx
; /* initial ctx, used to store sessions */
1686 # ifndef OPENSSL_NO_SRTP
1688 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1689 /* What's been chosen */
1690 SRTP_PROTECTION_PROFILE
*srtp_profile
;
1693 * 1 if we are renegotiating.
1694 * 2 if we are a server and are inside a handshake
1695 * (i.e. not just sending a HelloRequest)
1698 /* If sending a KeyUpdate is pending */
1700 /* Post-handshake authentication state */
1701 SSL_PHA_STATE post_handshake_auth
;
1703 uint8_t* pha_context
;
1704 size_t pha_context_len
;
1706 EVP_MD_CTX
*pha_dgst
; /* this is just the digest through ClientFinished */
1708 # ifndef OPENSSL_NO_SRP
1709 /* ctx for SRP authentication */
1713 * Callback for disabling session caching and ticket support on a session
1714 * basis, depending on the chosen cipher.
1716 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1718 /* Record layer data */
1719 RECORD_LAYER rlayer
;
1721 /* Default password callback. */
1722 pem_password_cb
*default_passwd_callback
;
1723 /* Default password callback user data. */
1724 void *default_passwd_callback_userdata
;
1725 /* Async Job info */
1727 ASYNC_WAIT_CTX
*waitctx
;
1731 * The maximum number of bytes advertised in session tickets that can be
1732 * sent as early data.
1734 uint32_t max_early_data
;
1736 * The maximum number of bytes of early data that a server will tolerate
1737 * (which should be at least as much as max_early_data).
1739 uint32_t recv_max_early_data
;
1742 * The number of bytes of early data received so far. If we accepted early
1743 * data then this is a count of the plaintext bytes. If we rejected it then
1744 * this is a count of the ciphertext bytes.
1746 uint32_t early_data_count
;
1748 /* The number of TLS1.3 tickets to automatically send */
1750 /* The number of TLS1.3 tickets actually sent so far */
1751 size_t sent_tickets
;
1752 /* The next nonce value to use when we send a ticket on this connection */
1753 uint64_t next_ticket_nonce
;
1755 /* Callback to determine if early_data is acceptable or not */
1756 SSL_allow_early_data_cb_fn allow_early_data_cb
;
1757 void *allow_early_data_cb_data
;
1759 /* Callback for SSL async handling */
1760 SSL_async_callback_fn async_cb
;
1764 * Signature algorithms shared by client and server: cached because these
1765 * are used most often.
1767 const struct sigalg_lookup_st
**shared_sigalgs
;
1768 size_t shared_sigalgslen
;
1770 #ifndef OPENSSL_NO_COMP_ALG
1771 /* certificate compression preferences */
1772 int cert_comp_prefs
[TLSEXT_comp_cert_limit
];
1776 # define SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, c) \
1777 ((ssl) == NULL ? NULL \
1778 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1779 ? (c SSL_CONNECTION *)(ssl) \
1781 # define SSL_CONNECTION_NO_CONST
1782 # define SSL_CONNECTION_FROM_SSL_ONLY(ssl) \
1783 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1784 # define SSL_CONNECTION_FROM_CONST_SSL_ONLY(ssl) \
1785 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1786 # define SSL_CONNECTION_GET_CTX(sc) ((sc)->ssl.ctx)
1787 # define SSL_CONNECTION_GET_SSL(sc) (&(sc)->ssl)
1788 # ifndef OPENSSL_NO_QUIC
1789 # include "quic/quic_local.h"
1790 # define SSL_CONNECTION_FROM_SSL_int(ssl, c) \
1791 ((ssl) == NULL ? NULL \
1792 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1793 ? (c SSL_CONNECTION *)(ssl) \
1794 : ((ssl)->type == SSL_TYPE_QUIC_CONNECTION \
1795 ? (c SSL_CONNECTION *)((c QUIC_CONNECTION *)(ssl))->tls \
1797 # define SSL_CONNECTION_FROM_SSL(ssl) \
1798 SSL_CONNECTION_FROM_SSL_int(ssl, SSL_CONNECTION_NO_CONST)
1799 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1800 SSL_CONNECTION_FROM_SSL_int(ssl, const)
1802 # define SSL_CONNECTION_FROM_SSL(ssl) \
1803 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1804 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1805 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1809 * Structure containing table entry of values associated with the signature
1810 * algorithms (signature scheme) extension
1812 typedef struct sigalg_lookup_st
{
1813 /* TLS 1.3 signature scheme name */
1815 /* Raw value used in extension */
1817 /* NID of hash algorithm or NID_undef if no hash */
1819 /* Index of hash algorithm or -1 if no hash algorithm */
1821 /* NID of signature algorithm */
1823 /* Index of signature algorithm */
1825 /* Combined hash and signature NID, if any */
1827 /* Required public key curve (ECDSA only) */
1829 /* Whether this signature algorithm is actually available for use */
1833 /* DTLS structures */
1835 # ifndef OPENSSL_NO_SCTP
1836 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1839 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1840 # define DTLS1_MAX_MTU_OVERHEAD 48
1843 * Flag used in message reuse to indicate the buffer contains the record
1844 * header as well as the handshake message header.
1846 # define DTLS1_SKIP_RECORD_HEADER 2
1848 struct dtls1_retransmit_state
{
1849 const OSSL_RECORD_METHOD
*wrlmethod
;
1850 OSSL_RECORD_LAYER
*wrl
;
1853 struct hm_header_st
{
1859 unsigned int is_ccs
;
1860 struct dtls1_retransmit_state saved_retransmit_state
;
1863 typedef struct hm_fragment_st
{
1864 struct hm_header_st msg_header
;
1865 unsigned char *fragment
;
1866 unsigned char *reassembly
;
1869 typedef struct pqueue_st pqueue
;
1870 typedef struct pitem_st pitem
;
1873 unsigned char priority
[8]; /* 64-bit value in big-endian encoding */
1878 typedef struct pitem_st
*piterator
;
1880 pitem
*pitem_new(unsigned char *prio64be
, void *data
);
1881 void pitem_free(pitem
*item
);
1882 pqueue
*pqueue_new(void);
1883 void pqueue_free(pqueue
*pq
);
1884 pitem
*pqueue_insert(pqueue
*pq
, pitem
*item
);
1885 pitem
*pqueue_peek(pqueue
*pq
);
1886 pitem
*pqueue_pop(pqueue
*pq
);
1887 pitem
*pqueue_find(pqueue
*pq
, unsigned char *prio64be
);
1888 pitem
*pqueue_iterator(pqueue
*pq
);
1889 pitem
*pqueue_next(piterator
*iter
);
1890 size_t pqueue_size(pqueue
*pq
);
1892 typedef struct dtls1_state_st
{
1893 unsigned char cookie
[DTLS1_COOKIE_LENGTH
];
1895 unsigned int cookie_verified
;
1896 /* handshake message numbers */
1897 unsigned short handshake_write_seq
;
1898 unsigned short next_handshake_write_seq
;
1899 unsigned short handshake_read_seq
;
1900 /* Buffered handshake messages */
1901 pqueue
*buffered_messages
;
1902 /* Buffered (sent) handshake records */
1903 pqueue
*sent_messages
;
1904 size_t link_mtu
; /* max on-the-wire DTLS packet size */
1905 size_t mtu
; /* max DTLS packet size */
1906 struct hm_header_st w_msg_hdr
;
1907 struct hm_header_st r_msg_hdr
;
1908 /* Number of alerts received so far */
1909 unsigned int timeout_num_alerts
;
1911 * Indicates when the last handshake msg sent will timeout
1913 OSSL_TIME next_timeout
;
1914 /* Timeout duration */
1915 unsigned int timeout_duration_us
;
1917 unsigned int retransmitting
;
1918 # ifndef OPENSSL_NO_SCTP
1919 int shutdown_received
;
1922 DTLS_timer_cb timer_cb
;
1927 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1929 # define EXPLICIT_PRIME_CURVE_TYPE 1
1930 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1931 # define NAMED_CURVE_TYPE 3
1933 # ifndef OPENSSL_NO_COMP_ALG
1934 struct ossl_comp_cert_st
{
1935 unsigned char *data
;
1938 CRYPTO_REF_COUNT references
;
1939 CRYPTO_RWLOCK
*lock
;
1942 typedef struct ossl_comp_cert_st OSSL_COMP_CERT
;
1944 void OSSL_COMP_CERT_free(OSSL_COMP_CERT
*c
);
1945 int OSSL_COMP_CERT_up_ref(OSSL_COMP_CERT
*c
);
1948 struct cert_pkey_st
{
1950 EVP_PKEY
*privatekey
;
1951 /* Chain for this certificate */
1952 STACK_OF(X509
) *chain
;
1954 * serverinfo data for this certificate. The data is in TLS Extension
1955 * wire format, specifically it's a series of records like:
1956 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1958 * uint8_t data[length];
1960 unsigned char *serverinfo
;
1961 size_t serverinfo_length
;
1962 # ifndef OPENSSL_NO_COMP_ALG
1963 /* Compressed certificate data - index 0 is unused */
1964 OSSL_COMP_CERT
*comp_cert
[TLSEXT_comp_cert_limit
];
1968 /* Retrieve Suite B flags */
1969 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1970 /* Uses to check strict mode: suite B modes are always strict */
1971 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1972 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1975 ENDPOINT_CLIENT
= 0,
1982 unsigned short ext_type
;
1984 /* The context which this extension applies to */
1985 unsigned int context
;
1987 * Per-connection flags relating to this extension type: not used if
1988 * part of an SSL_CTX structure.
1991 SSL_custom_ext_add_cb_ex add_cb
;
1992 SSL_custom_ext_free_cb_ex free_cb
;
1994 SSL_custom_ext_parse_cb_ex parse_cb
;
1996 } custom_ext_method
;
1998 /* ext_flags values */
2001 * Indicates an extension has been received. Used to check for unsolicited or
2002 * duplicate extensions.
2004 # define SSL_EXT_FLAG_RECEIVED 0x1
2006 * Indicates an extension has been sent: used to enable sending of
2007 * corresponding ServerHello extension.
2009 # define SSL_EXT_FLAG_SENT 0x2
2012 custom_ext_method
*meths
;
2014 } custom_ext_methods
;
2016 typedef struct cert_st
{
2017 /* Current active set */
2019 * ALWAYS points to an element of the pkeys array
2020 * Probably it would make more sense to store
2021 * an index, not a pointer.
2026 DH
*(*dh_tmp_cb
) (SSL
*ssl
, int is_export
, int keysize
);
2028 /* Flags related to certificates */
2029 uint32_t cert_flags
;
2031 size_t ssl_pkey_num
;
2032 /* Custom certificate types sent in certificate request message. */
2036 * supported signature algorithms. When set on a client this is sent in
2037 * the client hello as the supported signature algorithms extension. For
2038 * servers it represents the signature algorithms we are willing to use.
2040 uint16_t *conf_sigalgs
;
2041 /* Size of above array */
2042 size_t conf_sigalgslen
;
2044 * Client authentication signature algorithms, if not set then uses
2045 * conf_sigalgs. On servers these will be the signature algorithms sent
2046 * to the client in a certificate request for TLS 1.2. On a client this
2047 * represents the signature algorithms we are willing to use for client
2050 uint16_t *client_sigalgs
;
2051 /* Size of above array */
2052 size_t client_sigalgslen
;
2054 * Certificate setup callback: if set is called whenever a certificate
2055 * may be required (client or server). the callback can then examine any
2056 * appropriate parameters and setup any certificates required. This
2057 * allows advanced applications to select certificates on the fly: for
2058 * example based on supported signature algorithms or curves.
2060 int (*cert_cb
) (SSL
*ssl
, void *arg
);
2063 * Optional X509_STORE for chain building or certificate validation If
2064 * NULL the parent SSL_CTX store is used instead.
2066 X509_STORE
*chain_store
;
2067 X509_STORE
*verify_store
;
2068 /* Custom extensions */
2069 custom_ext_methods custext
;
2070 /* Security callback */
2071 int (*sec_cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
2072 void *other
, void *ex
);
2073 /* Security level */
2076 # ifndef OPENSSL_NO_PSK
2077 /* If not NULL psk identity hint to use for servers */
2078 char *psk_identity_hint
;
2080 CRYPTO_REF_COUNT references
; /* >1 only if SSL_copy_session_id is used */
2081 CRYPTO_RWLOCK
*lock
;
2084 # define FP_ICC (int (*)(const void *,const void *))
2087 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
2088 * of a mess of functions, but hell, think of it as an opaque structure :-)
2090 typedef struct ssl3_enc_method
{
2091 int (*setup_key_block
) (SSL_CONNECTION
*);
2092 int (*generate_master_secret
) (SSL_CONNECTION
*, unsigned char *,
2093 unsigned char *, size_t, size_t *);
2094 int (*change_cipher_state
) (SSL_CONNECTION
*, int);
2095 size_t (*final_finish_mac
) (SSL_CONNECTION
*, const char *, size_t,
2097 const char *client_finished_label
;
2098 size_t client_finished_label_len
;
2099 const char *server_finished_label
;
2100 size_t server_finished_label_len
;
2101 int (*alert_value
) (int);
2102 int (*export_keying_material
) (SSL_CONNECTION
*, unsigned char *, size_t,
2103 const char *, size_t,
2104 const unsigned char *, size_t,
2106 /* Various flags indicating protocol version requirements */
2108 /* Set the handshake header */
2109 int (*set_handshake_header
) (SSL_CONNECTION
*s
, WPACKET
*pkt
, int type
);
2110 /* Close construction of the handshake message */
2111 int (*close_construct_packet
) (SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2112 /* Write out handshake message */
2113 int (*do_write
) (SSL_CONNECTION
*s
);
2116 # define ssl_set_handshake_header(s, pkt, htype) \
2117 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
2118 # define ssl_close_construct_packet(s, pkt, htype) \
2119 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
2120 # define ssl_do_write(s) SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->do_write(s)
2122 /* Values for enc_flags */
2124 /* Uses explicit IV for CBC mode */
2125 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
2126 /* Uses signature algorithms extension */
2127 # define SSL_ENC_FLAG_SIGALGS 0x2
2128 /* Uses SHA256 default PRF */
2129 # define SSL_ENC_FLAG_SHA256_PRF 0x4
2131 # define SSL_ENC_FLAG_DTLS 0x8
2133 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
2134 * apply to others in future.
2136 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
2138 # ifndef OPENSSL_NO_COMP
2139 /* Used for holding the relevant compression methods loaded into SSL_CTX */
2140 typedef struct ssl3_comp_st
{
2141 int comp_id
; /* The identifier byte for this compression
2143 char *name
; /* Text name used for the compression type */
2144 COMP_METHOD
*method
; /* The method :-) */
2148 typedef enum downgrade_en
{
2155 * Dummy status type for the status_type extension. Indicates no status type
2158 #define TLSEXT_STATUSTYPE_nothing -1
2160 /* Sigalgs values */
2161 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
2162 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
2163 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
2164 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303
2165 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203
2166 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804
2167 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805
2168 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806
2169 #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809
2170 #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a
2171 #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b
2172 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
2173 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
2174 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
2175 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
2176 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
2177 #define TLSEXT_SIGALG_dsa_sha256 0x0402
2178 #define TLSEXT_SIGALG_dsa_sha384 0x0502
2179 #define TLSEXT_SIGALG_dsa_sha512 0x0602
2180 #define TLSEXT_SIGALG_dsa_sha224 0x0302
2181 #define TLSEXT_SIGALG_dsa_sha1 0x0202
2182 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840
2183 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841
2184 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
2185 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
2186 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
2188 #define TLSEXT_SIGALG_ed25519 0x0807
2189 #define TLSEXT_SIGALG_ed448 0x0808
2190 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256 0x081a
2191 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384 0x081b
2192 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512 0x081c
2194 /* Known PSK key exchange modes */
2195 #define TLSEXT_KEX_MODE_KE 0x00
2196 #define TLSEXT_KEX_MODE_KE_DHE 0x01
2199 * Internal representations of key exchange modes
2201 #define TLSEXT_KEX_MODE_FLAG_NONE 0
2202 #define TLSEXT_KEX_MODE_FLAG_KE 1
2203 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
2205 #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \
2206 s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
2208 /* A dummy signature value not valid for TLSv1.2 signature algs */
2209 #define TLSEXT_signature_rsa_pss 0x0101
2211 /* TLSv1.3 downgrade protection sentinel values */
2212 extern const unsigned char tls11downgrade
[8];
2213 extern const unsigned char tls12downgrade
[8];
2215 extern SSL3_ENC_METHOD ssl3_undef_enc_method
;
2217 __owur
const SSL_METHOD
*ssl_bad_method(int ver
);
2218 __owur
const SSL_METHOD
*sslv3_method(void);
2219 __owur
const SSL_METHOD
*sslv3_server_method(void);
2220 __owur
const SSL_METHOD
*sslv3_client_method(void);
2221 __owur
const SSL_METHOD
*tlsv1_method(void);
2222 __owur
const SSL_METHOD
*tlsv1_server_method(void);
2223 __owur
const SSL_METHOD
*tlsv1_client_method(void);
2224 __owur
const SSL_METHOD
*tlsv1_1_method(void);
2225 __owur
const SSL_METHOD
*tlsv1_1_server_method(void);
2226 __owur
const SSL_METHOD
*tlsv1_1_client_method(void);
2227 __owur
const SSL_METHOD
*tlsv1_2_method(void);
2228 __owur
const SSL_METHOD
*tlsv1_2_server_method(void);
2229 __owur
const SSL_METHOD
*tlsv1_2_client_method(void);
2230 __owur
const SSL_METHOD
*tlsv1_3_method(void);
2231 __owur
const SSL_METHOD
*tlsv1_3_server_method(void);
2232 __owur
const SSL_METHOD
*tlsv1_3_client_method(void);
2233 __owur
const SSL_METHOD
*dtlsv1_method(void);
2234 __owur
const SSL_METHOD
*dtlsv1_server_method(void);
2235 __owur
const SSL_METHOD
*dtlsv1_client_method(void);
2236 __owur
const SSL_METHOD
*dtls_bad_ver_client_method(void);
2237 __owur
const SSL_METHOD
*dtlsv1_2_method(void);
2238 __owur
const SSL_METHOD
*dtlsv1_2_server_method(void);
2239 __owur
const SSL_METHOD
*dtlsv1_2_client_method(void);
2241 extern const SSL3_ENC_METHOD TLSv1_enc_data
;
2242 extern const SSL3_ENC_METHOD TLSv1_1_enc_data
;
2243 extern const SSL3_ENC_METHOD TLSv1_2_enc_data
;
2244 extern const SSL3_ENC_METHOD TLSv1_3_enc_data
;
2245 extern const SSL3_ENC_METHOD SSLv3_enc_data
;
2246 extern const SSL3_ENC_METHOD DTLSv1_enc_data
;
2247 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data
;
2250 * Flags for SSL methods
2252 # define SSL_METHOD_NO_FIPS (1U<<0)
2253 # define SSL_METHOD_NO_SUITEB (1U<<1)
2255 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
2256 s_connect, enc_data) \
2257 const SSL_METHOD *func_name(void) \
2259 static const SSL_METHOD func_name##_data= { \
2263 ossl_ssl_connection_new, \
2264 ossl_ssl_connection_free, \
2265 ossl_ssl_connection_reset, \
2276 ssl3_renegotiate_check, \
2279 ssl3_dispatch_alert, \
2282 ssl3_get_cipher_by_char, \
2283 ssl3_put_cipher_by_char, \
2287 tls1_default_timeout, \
2289 ssl_undefined_void_function, \
2290 ssl3_callback_ctrl, \
2291 ssl3_ctx_callback_ctrl, \
2293 return &func_name##_data; \
2296 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
2297 const SSL_METHOD *func_name(void) \
2299 static const SSL_METHOD func_name##_data= { \
2301 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
2303 ossl_ssl_connection_new, \
2304 ossl_ssl_connection_free, \
2305 ossl_ssl_connection_reset, \
2316 ssl3_renegotiate_check, \
2319 ssl3_dispatch_alert, \
2322 ssl3_get_cipher_by_char, \
2323 ssl3_put_cipher_by_char, \
2327 ssl3_default_timeout, \
2329 ssl_undefined_void_function, \
2330 ssl3_callback_ctrl, \
2331 ssl3_ctx_callback_ctrl, \
2333 return &func_name##_data; \
2336 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
2337 s_connect, enc_data) \
2338 const SSL_METHOD *func_name(void) \
2340 static const SSL_METHOD func_name##_data= { \
2344 ossl_ssl_connection_new, \
2345 ossl_ssl_connection_free, \
2346 ossl_ssl_connection_reset, \
2357 ssl3_renegotiate_check, \
2359 dtls1_write_app_data_bytes, \
2360 dtls1_dispatch_alert, \
2363 ssl3_get_cipher_by_char, \
2364 ssl3_put_cipher_by_char, \
2368 dtls1_default_timeout, \
2370 ssl_undefined_void_function, \
2371 ssl3_callback_ctrl, \
2372 ssl3_ctx_callback_ctrl, \
2374 return &func_name##_data; \
2377 struct openssl_ssl_test_functions
{
2378 int (*p_ssl_init_wbio_buffer
) (SSL_CONNECTION
*s
);
2381 const char *ssl_protocol_to_string(int version
);
2383 /* Returns true if certificate and private key for 'idx' are present */
2384 static ossl_inline
int ssl_has_cert(const SSL_CONNECTION
*s
, int idx
)
2386 if (idx
< 0 || idx
>= (int)s
->ssl_pkey_num
)
2388 return s
->cert
->pkeys
[idx
].x509
!= NULL
2389 && s
->cert
->pkeys
[idx
].privatekey
!= NULL
;
2392 static ossl_inline
void tls1_get_peer_groups(SSL_CONNECTION
*s
,
2393 const uint16_t **pgroups
,
2396 *pgroups
= s
->ext
.peer_supportedgroups
;
2397 *pgroupslen
= s
->ext
.peer_supportedgroups_len
;
2400 # ifndef OPENSSL_UNIT_TEST
2402 __owur
int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, const SSL_METHOD
*method
,
2404 __owur SSL
*ossl_ssl_connection_new_int(SSL_CTX
*ctx
, const SSL_METHOD
*method
);
2405 __owur SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
);
2406 void ossl_ssl_connection_free(SSL
*ssl
);
2407 __owur
int ossl_ssl_connection_reset(SSL
*ssl
);
2409 __owur
int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
);
2410 __owur
int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
, size_t *written
);
2411 int ssl_clear_bad_session(SSL_CONNECTION
*s
);
2412 __owur CERT
*ssl_cert_new(size_t ssl_pkey_num
);
2413 __owur CERT
*ssl_cert_dup(CERT
*cert
);
2414 void ssl_cert_clear_certs(CERT
*c
);
2415 void ssl_cert_free(CERT
*c
);
2416 __owur
int ssl_generate_session_id(SSL_CONNECTION
*s
, SSL_SESSION
*ss
);
2417 __owur
int ssl_get_new_session(SSL_CONNECTION
*s
, int session
);
2418 __owur SSL_SESSION
*lookup_sess_in_cache(SSL_CONNECTION
*s
,
2419 const unsigned char *sess_id
,
2420 size_t sess_id_len
);
2421 __owur
int ssl_get_prev_session(SSL_CONNECTION
*s
, CLIENTHELLO_MSG
*hello
);
2422 __owur SSL_SESSION
*ssl_session_dup(const SSL_SESSION
*src
, int ticket
);
2423 __owur
int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
);
2424 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
2425 __owur
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2426 const SSL_CIPHER
*const *bp
);
2427 __owur
STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(SSL_CTX
*ctx
,
2428 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
,
2429 STACK_OF(SSL_CIPHER
) **cipher_list
,
2430 STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
2431 const char *rule_str
,
2433 __owur
int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
2435 __owur
int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
2436 STACK_OF(SSL_CIPHER
) **skp
,
2437 STACK_OF(SSL_CIPHER
) **scsvs
, int sslv2format
,
2439 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
);
2440 __owur
int ssl_cipher_get_evp_cipher(SSL_CTX
*ctx
, const SSL_CIPHER
*sslc
,
2441 const EVP_CIPHER
**enc
);
2442 __owur
int ssl_cipher_get_evp(SSL_CTX
*ctxc
, const SSL_SESSION
*s
,
2443 const EVP_CIPHER
**enc
, const EVP_MD
**md
,
2444 int *mac_pkey_type
, size_t *mac_secret_size
,
2445 SSL_COMP
**comp
, int use_etm
);
2446 __owur
int ssl_cipher_get_overhead(const SSL_CIPHER
*c
, size_t *mac_overhead
,
2447 size_t *int_overhead
, size_t *blocksize
,
2448 size_t *ext_overhead
);
2449 __owur
int ssl_cert_is_disabled(SSL_CTX
*ctx
, size_t idx
);
2450 __owur
const SSL_CIPHER
*ssl_get_cipher_by_char(SSL_CONNECTION
*ssl
,
2451 const unsigned char *ptr
,
2453 __owur
int ssl_cert_set0_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
,
2454 STACK_OF(X509
) *chain
);
2455 __owur
int ssl_cert_set1_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
,
2456 STACK_OF(X509
) *chain
);
2457 __owur
int ssl_cert_add0_chain_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
);
2458 __owur
int ssl_cert_add1_chain_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
);
2459 __owur
int ssl_cert_select_current(CERT
*c
, X509
*x
);
2460 __owur
int ssl_cert_set_current(CERT
*c
, long arg
);
2461 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
);
2463 __owur
int ssl_verify_cert_chain(SSL_CONNECTION
*s
, STACK_OF(X509
) *sk
);
2464 __owur
int ssl_build_cert_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, int flags
);
2465 __owur
int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
,
2467 __owur
int ssl_cert_get_cert_store(CERT
*c
, X509_STORE
**pstore
, int chain
);
2469 __owur
int ssl_security(const SSL_CONNECTION
*s
, int op
, int bits
, int nid
,
2471 __owur
int ssl_ctx_security(const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
2473 int ssl_get_security_level_bits(const SSL
*s
, const SSL_CTX
*ctx
, int *levelp
);
2475 __owur
int ssl_cert_lookup_by_nid(int nid
, size_t *pidx
, SSL_CTX
*ctx
);
2476 __owur SSL_CERT_LOOKUP
*ssl_cert_lookup_by_pkey(const EVP_PKEY
*pk
,
2479 __owur SSL_CERT_LOOKUP
*ssl_cert_lookup_by_idx(size_t idx
, SSL_CTX
*ctx
);
2481 int ssl_undefined_function(SSL
*s
);
2482 __owur
int ssl_undefined_void_function(void);
2483 __owur
int ssl_undefined_const_function(const SSL
*s
);
2484 __owur
int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
2485 const unsigned char **serverinfo
,
2486 size_t *serverinfo_length
);
2487 void ssl_set_masks(SSL_CONNECTION
*s
);
2488 __owur
STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*sc
);
2489 __owur
int ssl_x509err2alert(int type
);
2490 void ssl_sort_cipher_list(void);
2491 int ssl_load_ciphers(SSL_CTX
*ctx
);
2492 __owur
int ssl_setup_sigalgs(SSL_CTX
*ctx
);
2493 int ssl_load_groups(SSL_CTX
*ctx
);
2494 int ssl_load_sigalgs(SSL_CTX
*ctx
);
2495 __owur
int ssl_fill_hello_random(SSL_CONNECTION
*s
, int server
,
2496 unsigned char *field
, size_t len
,
2498 __owur
int ssl_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *pms
,
2499 size_t pmslen
, int free_pms
);
2500 __owur EVP_PKEY
*ssl_generate_pkey(SSL_CONNECTION
*s
, EVP_PKEY
*pm
);
2501 __owur
int ssl_gensecret(SSL_CONNECTION
*s
, unsigned char *pms
, size_t pmslen
);
2502 __owur
int ssl_derive(SSL_CONNECTION
*s
, EVP_PKEY
*privkey
, EVP_PKEY
*pubkey
,
2504 __owur
int ssl_decapsulate(SSL_CONNECTION
*s
, EVP_PKEY
*privkey
,
2505 const unsigned char *ct
, size_t ctlen
,
2507 __owur
int ssl_encapsulate(SSL_CONNECTION
*s
, EVP_PKEY
*pubkey
,
2508 unsigned char **ctp
, size_t *ctlenp
,
2510 __owur EVP_PKEY
*ssl_dh_to_pkey(DH
*dh
);
2511 __owur
int ssl_set_tmp_ecdh_groups(uint16_t **pext
, size_t *pextlen
,
2513 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
);
2514 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
);
2516 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_id(uint32_t id
);
2517 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_std_name(const char *stdname
);
2518 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_char(const unsigned char *p
);
2519 __owur
int ssl3_put_cipher_by_char(const SSL_CIPHER
*c
, WPACKET
*pkt
,
2521 int ssl3_init_finished_mac(SSL_CONNECTION
*s
);
2522 __owur
int ssl3_setup_key_block(SSL_CONNECTION
*s
);
2523 __owur
int ssl3_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2524 void ssl3_cleanup_key_block(SSL_CONNECTION
*s
);
2525 __owur
int ssl3_do_write(SSL_CONNECTION
*s
, int type
);
2526 int ssl3_send_alert(SSL_CONNECTION
*s
, int level
, int desc
);
2527 __owur
int ssl3_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2528 unsigned char *p
, size_t len
,
2529 size_t *secret_size
);
2530 __owur
int ssl3_get_req_cert_type(SSL_CONNECTION
*s
, WPACKET
*pkt
);
2531 __owur
int ssl3_num_ciphers(void);
2532 __owur
const SSL_CIPHER
*ssl3_get_cipher(unsigned int u
);
2533 int ssl3_renegotiate(SSL
*ssl
);
2534 int ssl3_renegotiate_check(SSL
*ssl
, int initok
);
2535 void ssl3_digest_master_key_set_params(const SSL_SESSION
*session
,
2536 OSSL_PARAM params
[]);
2537 __owur
int ssl3_dispatch_alert(SSL
*s
);
2538 __owur
size_t ssl3_final_finish_mac(SSL_CONNECTION
*s
, const char *sender
,
2539 size_t slen
, unsigned char *p
);
2540 __owur
int ssl3_finish_mac(SSL_CONNECTION
*s
, const unsigned char *buf
,
2542 void ssl3_free_digest_list(SSL_CONNECTION
*s
);
2543 __owur
unsigned long ssl3_output_cert_chain(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2544 CERT_PKEY
*cpk
, int for_comp
);
2545 __owur
const SSL_CIPHER
*ssl3_choose_cipher(SSL_CONNECTION
*s
,
2546 STACK_OF(SSL_CIPHER
) *clnt
,
2547 STACK_OF(SSL_CIPHER
) *srvr
);
2548 __owur
int ssl3_digest_cached_records(SSL_CONNECTION
*s
, int keep
);
2549 __owur
int ssl3_new(SSL
*s
);
2550 void ssl3_free(SSL
*s
);
2551 __owur
int ssl3_read(SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
2552 __owur
int ssl3_peek(SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
2553 __owur
int ssl3_write(SSL
*s
, const void *buf
, size_t len
, size_t *written
);
2554 __owur
int ssl3_shutdown(SSL
*s
);
2555 int ssl3_clear(SSL
*s
);
2556 __owur
long ssl3_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
2557 __owur
long ssl3_ctx_ctrl(SSL_CTX
*s
, int cmd
, long larg
, void *parg
);
2558 __owur
long ssl3_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
2559 __owur
long ssl3_ctx_callback_ctrl(SSL_CTX
*s
, int cmd
, void (*fp
) (void));
2561 __owur
int ssl3_do_change_cipher_spec(SSL_CONNECTION
*s
);
2562 __owur OSSL_TIME
ssl3_default_timeout(void);
2564 __owur
int ssl3_set_handshake_header(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2566 __owur
int tls_close_construct_packet(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2567 __owur
int tls_setup_handshake(SSL_CONNECTION
*s
);
2568 __owur
int dtls1_set_handshake_header(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2569 __owur
int dtls1_close_construct_packet(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2570 __owur
int ssl3_handshake_write(SSL_CONNECTION
*s
);
2572 __owur
int ssl_allow_compression(SSL_CONNECTION
*s
);
2574 __owur
int ssl_version_supported(const SSL_CONNECTION
*s
, int version
,
2575 const SSL_METHOD
**meth
);
2577 __owur
int ssl_set_client_hello_version(SSL_CONNECTION
*s
);
2578 __owur
int ssl_check_version_downgrade(SSL_CONNECTION
*s
);
2579 __owur
int ssl_set_version_bound(int method_version
, int version
, int *bound
);
2580 __owur
int ssl_choose_server_version(SSL_CONNECTION
*s
, CLIENTHELLO_MSG
*hello
,
2582 __owur
int ssl_choose_client_version(SSL_CONNECTION
*s
, int version
,
2583 RAW_EXTENSION
*extensions
);
2584 __owur
int ssl_get_min_max_version(const SSL_CONNECTION
*s
, int *min_version
,
2585 int *max_version
, int *real_max
);
2587 __owur OSSL_TIME
tls1_default_timeout(void);
2588 __owur
int dtls1_do_write(SSL_CONNECTION
*s
, int type
);
2589 void dtls1_set_message_header(SSL_CONNECTION
*s
,
2592 size_t frag_off
, size_t frag_len
);
2594 int dtls1_write_app_data_bytes(SSL
*s
, int type
, const void *buf_
, size_t len
,
2597 __owur
int dtls1_read_failed(SSL_CONNECTION
*s
, int code
);
2598 __owur
int dtls1_buffer_message(SSL_CONNECTION
*s
, int ccs
);
2599 __owur
int dtls1_retransmit_message(SSL_CONNECTION
*s
, unsigned short seq
,
2601 __owur
int dtls1_get_queue_priority(unsigned short seq
, int is_ccs
);
2602 int dtls1_retransmit_buffered_messages(SSL_CONNECTION
*s
);
2603 void dtls1_clear_received_buffer(SSL_CONNECTION
*s
);
2604 void dtls1_clear_sent_buffer(SSL_CONNECTION
*s
);
2605 void dtls1_get_message_header(unsigned char *data
,
2606 struct hm_header_st
*msg_hdr
);
2607 __owur OSSL_TIME
dtls1_default_timeout(void);
2608 __owur OSSL_TIME
*dtls1_get_timeout(SSL_CONNECTION
*s
, OSSL_TIME
*timeleft
);
2609 __owur
int dtls1_check_timeout_num(SSL_CONNECTION
*s
);
2610 __owur
int dtls1_handle_timeout(SSL_CONNECTION
*s
);
2611 void dtls1_start_timer(SSL_CONNECTION
*s
);
2612 void dtls1_stop_timer(SSL_CONNECTION
*s
);
2613 __owur
int dtls1_is_timer_expired(SSL_CONNECTION
*s
);
2614 __owur
int dtls_raw_hello_verify_request(WPACKET
*pkt
, unsigned char *cookie
,
2616 __owur
size_t dtls1_min_mtu(SSL_CONNECTION
*s
);
2617 void dtls1_hm_fragment_free(hm_fragment
*frag
);
2618 __owur
int dtls1_query_mtu(SSL_CONNECTION
*s
);
2620 __owur
int tls1_new(SSL
*s
);
2621 void tls1_free(SSL
*s
);
2622 int tls1_clear(SSL
*s
);
2624 __owur
int dtls1_new(SSL
*s
);
2625 void dtls1_free(SSL
*s
);
2626 int dtls1_clear(SSL
*s
);
2627 long dtls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
2628 __owur
int dtls1_shutdown(SSL
*s
);
2630 __owur
int dtls1_dispatch_alert(SSL
*s
);
2632 __owur
int ssl_init_wbio_buffer(SSL_CONNECTION
*s
);
2633 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
);
2635 __owur
int tls1_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2636 __owur
int tls1_setup_key_block(SSL_CONNECTION
*s
);
2637 __owur
size_t tls1_final_finish_mac(SSL_CONNECTION
*s
, const char *str
,
2638 size_t slen
, unsigned char *p
);
2639 __owur
int tls1_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2640 unsigned char *p
, size_t len
,
2641 size_t *secret_size
);
2642 __owur
int tls13_setup_key_block(SSL_CONNECTION
*s
);
2643 __owur
size_t tls13_final_finish_mac(SSL_CONNECTION
*s
, const char *str
, size_t slen
,
2645 __owur
int tls13_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2646 __owur
int tls13_update_key(SSL_CONNECTION
*s
, int send
);
2647 __owur
int tls13_hkdf_expand(SSL_CONNECTION
*s
,
2649 const unsigned char *secret
,
2650 const unsigned char *label
, size_t labellen
,
2651 const unsigned char *data
, size_t datalen
,
2652 unsigned char *out
, size_t outlen
, int fatal
);
2653 __owur
int tls13_hkdf_expand_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
2655 const unsigned char *secret
,
2656 const unsigned char *label
, size_t labellen
,
2657 const unsigned char *data
, size_t datalen
,
2658 unsigned char *out
, size_t outlen
,
2660 __owur
int tls13_derive_key(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2661 const unsigned char *secret
, unsigned char *key
,
2663 __owur
int tls13_derive_iv(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2664 const unsigned char *secret
, unsigned char *iv
,
2666 __owur
int tls13_derive_finishedkey(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2667 const unsigned char *secret
,
2668 unsigned char *fin
, size_t finlen
);
2669 int tls13_generate_secret(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2670 const unsigned char *prevsecret
,
2671 const unsigned char *insecret
,
2673 unsigned char *outsecret
);
2674 __owur
int tls13_generate_handshake_secret(SSL_CONNECTION
*s
,
2675 const unsigned char *insecret
,
2676 size_t insecretlen
);
2677 __owur
int tls13_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2678 unsigned char *prev
, size_t prevlen
,
2679 size_t *secret_size
);
2680 __owur
int tls1_export_keying_material(SSL_CONNECTION
*s
,
2681 unsigned char *out
, size_t olen
,
2682 const char *label
, size_t llen
,
2683 const unsigned char *p
, size_t plen
,
2685 __owur
int tls13_export_keying_material(SSL_CONNECTION
*s
,
2686 unsigned char *out
, size_t olen
,
2687 const char *label
, size_t llen
,
2688 const unsigned char *context
,
2689 size_t contextlen
, int use_context
);
2690 __owur
int tls13_export_keying_material_early(SSL_CONNECTION
*s
,
2691 unsigned char *out
, size_t olen
,
2692 const char *label
, size_t llen
,
2693 const unsigned char *context
,
2695 __owur
int tls1_alert_code(int code
);
2696 __owur
int tls13_alert_code(int code
);
2697 __owur
int ssl3_alert_code(int code
);
2699 __owur
int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
);
2701 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
);
2703 __owur
const TLS_GROUP_INFO
*tls1_group_id_lookup(SSL_CTX
*ctx
, uint16_t curve_id
);
2704 __owur
int tls1_group_id2nid(uint16_t group_id
, int include_unknown
);
2705 __owur
uint16_t tls1_nid2group_id(int nid
);
2706 __owur
int tls1_check_group_id(SSL_CONNECTION
*s
, uint16_t group_id
,
2707 int check_own_curves
);
2708 __owur
uint16_t tls1_shared_group(SSL_CONNECTION
*s
, int nmatch
);
2709 __owur
int tls1_set_groups(uint16_t **pext
, size_t *pextlen
,
2710 int *curves
, size_t ncurves
);
2711 __owur
int tls1_set_groups_list(SSL_CTX
*ctx
, uint16_t **pext
, size_t *pextlen
,
2713 __owur EVP_PKEY
*ssl_generate_pkey_group(SSL_CONNECTION
*s
, uint16_t id
);
2714 __owur
int tls_valid_group(SSL_CONNECTION
*s
, uint16_t group_id
, int minversion
,
2715 int maxversion
, int isec
, int *okfortls13
);
2716 __owur EVP_PKEY
*ssl_generate_param_group(SSL_CONNECTION
*s
, uint16_t id
);
2717 void tls1_get_formatlist(SSL_CONNECTION
*s
, const unsigned char **pformats
,
2718 size_t *num_formats
);
2719 __owur
int tls1_check_ec_tmp_key(SSL_CONNECTION
*s
, unsigned long id
);
2721 __owur
int tls_group_allowed(SSL_CONNECTION
*s
, uint16_t curve
, int op
);
2722 void tls1_get_supported_groups(SSL_CONNECTION
*s
, const uint16_t **pgroups
,
2723 size_t *pgroupslen
);
2725 __owur
int tls1_set_server_sigalgs(SSL_CONNECTION
*s
);
2727 __owur SSL_TICKET_STATUS
tls_get_ticket_from_client(SSL_CONNECTION
*s
,
2728 CLIENTHELLO_MSG
*hello
,
2730 __owur SSL_TICKET_STATUS
tls_decrypt_ticket(SSL_CONNECTION
*s
,
2731 const unsigned char *etick
,
2733 const unsigned char *sess_id
,
2734 size_t sesslen
, SSL_SESSION
**psess
);
2736 __owur
int tls_use_ticket(SSL_CONNECTION
*s
);
2738 void ssl_set_sig_mask(uint32_t *pmask_a
, SSL_CONNECTION
*s
, int op
);
2740 __owur
int tls1_set_sigalgs_list(CERT
*c
, const char *str
, int client
);
2741 __owur
int tls1_set_raw_sigalgs(CERT
*c
, const uint16_t *psigs
, size_t salglen
,
2743 __owur
int tls1_set_sigalgs(CERT
*c
, const int *salg
, size_t salglen
,
2745 int tls1_check_chain(SSL_CONNECTION
*s
, X509
*x
, EVP_PKEY
*pk
,
2746 STACK_OF(X509
) *chain
, int idx
);
2747 void tls1_set_cert_validity(SSL_CONNECTION
*s
);
2749 # ifndef OPENSSL_NO_CT
2750 __owur
int ssl_validate_ct(SSL_CONNECTION
*s
);
2753 __owur EVP_PKEY
*ssl_get_auto_dh(SSL_CONNECTION
*s
);
2755 __owur
int ssl_security_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
, int vfy
,
2757 __owur
int ssl_security_cert_chain(SSL_CONNECTION
*s
, STACK_OF(X509
) *sk
,
2760 int tls_choose_sigalg(SSL_CONNECTION
*s
, int fatalerrs
);
2762 __owur
long ssl_get_algorithm2(SSL_CONNECTION
*s
);
2763 __owur
int tls12_copy_sigalgs(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2764 const uint16_t *psig
, size_t psiglen
);
2765 __owur
int tls1_save_u16(PACKET
*pkt
, uint16_t **pdest
, size_t *pdestlen
);
2766 __owur
int tls1_save_sigalgs(SSL_CONNECTION
*s
, PACKET
*pkt
, int cert
);
2767 __owur
int tls1_process_sigalgs(SSL_CONNECTION
*s
);
2768 __owur
int tls1_set_peer_legacy_sigalg(SSL_CONNECTION
*s
, const EVP_PKEY
*pkey
);
2769 __owur
int tls1_lookup_md(SSL_CTX
*ctx
, const SIGALG_LOOKUP
*lu
,
2770 const EVP_MD
**pmd
);
2771 __owur
size_t tls12_get_psigalgs(SSL_CONNECTION
*s
, int sent
,
2772 const uint16_t **psigs
);
2773 __owur
int tls_check_sigalg_curve(const SSL_CONNECTION
*s
, int curve
);
2774 __owur
int tls12_check_peer_sigalg(SSL_CONNECTION
*s
, uint16_t, EVP_PKEY
*pkey
);
2775 __owur
int ssl_set_client_disabled(SSL_CONNECTION
*s
);
2776 __owur
int ssl_cipher_disabled(const SSL_CONNECTION
*s
, const SSL_CIPHER
*c
,
2779 __owur
int ssl_handshake_hash(SSL_CONNECTION
*s
,
2780 unsigned char *out
, size_t outlen
,
2782 __owur
const EVP_MD
*ssl_md(SSL_CTX
*ctx
, int idx
);
2783 int ssl_get_md_idx(int md_nid
);
2784 __owur
const EVP_MD
*ssl_handshake_md(SSL_CONNECTION
*s
);
2785 __owur
const EVP_MD
*ssl_prf_md(SSL_CONNECTION
*s
);
2788 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2789 * with |ssl|, if logging is enabled. It returns one on success and zero on
2790 * failure. The entry is identified by the first 8 bytes of
2791 * |encrypted_premaster|.
2793 __owur
int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*s
,
2794 const uint8_t *encrypted_premaster
,
2795 size_t encrypted_premaster_len
,
2796 const uint8_t *premaster
,
2797 size_t premaster_len
);
2800 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2801 * logging is available. It returns one on success and zero on failure. It tags
2802 * the entry with |label|.
2804 __owur
int ssl_log_secret(SSL_CONNECTION
*s
, const char *label
,
2805 const uint8_t *secret
, size_t secret_len
);
2807 #define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2808 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
2809 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2810 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2811 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2812 #define CLIENT_APPLICATION_N_LABEL "CLIENT_TRAFFIC_SECRET_N"
2813 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2814 #define SERVER_APPLICATION_N_LABEL "SERVER_TRAFFIC_SECRET_N"
2815 #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET"
2816 #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET"
2818 __owur
int srp_generate_server_master_secret(SSL_CONNECTION
*s
);
2819 __owur
int srp_generate_client_master_secret(SSL_CONNECTION
*s
);
2820 __owur
int srp_verify_server_param(SSL_CONNECTION
*s
);
2822 /* statem/statem_srvr.c */
2824 __owur
int send_certificate_request(SSL_CONNECTION
*s
);
2826 /* statem/extensions_cust.c */
2828 custom_ext_method
*custom_ext_find(const custom_ext_methods
*exts
,
2829 ENDPOINT role
, unsigned int ext_type
,
2832 void custom_ext_init(custom_ext_methods
*meths
);
2834 int ossl_tls_add_custom_ext_intern(SSL_CTX
*ctx
, custom_ext_methods
*exts
,
2835 ENDPOINT role
, unsigned int ext_type
,
2836 unsigned int context
,
2837 SSL_custom_ext_add_cb_ex add_cb
,
2838 SSL_custom_ext_free_cb_ex free_cb
,
2840 SSL_custom_ext_parse_cb_ex parse_cb
,
2842 __owur
int custom_ext_parse(SSL_CONNECTION
*s
, unsigned int context
,
2843 unsigned int ext_type
,
2844 const unsigned char *ext_data
, size_t ext_size
,
2845 X509
*x
, size_t chainidx
);
2846 __owur
int custom_ext_add(SSL_CONNECTION
*s
, int context
, WPACKET
*pkt
, X509
*x
,
2847 size_t chainidx
, int maxversion
);
2849 __owur
int custom_exts_copy(custom_ext_methods
*dst
,
2850 const custom_ext_methods
*src
);
2851 __owur
int custom_exts_copy_flags(custom_ext_methods
*dst
,
2852 const custom_ext_methods
*src
);
2853 void custom_exts_free(custom_ext_methods
*exts
);
2855 void ssl_comp_free_compression_methods_int(void);
2858 void ssl_ctx_system_config(SSL_CTX
*ctx
);
2860 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
2862 const char *properties
);
2863 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
);
2864 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
);
2865 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
2867 const char *properties
);
2868 int ssl_evp_md_up_ref(const EVP_MD
*md
);
2869 void ssl_evp_md_free(const EVP_MD
*md
);
2871 int tls_provider_set_tls_params(SSL_CONNECTION
*s
, EVP_CIPHER_CTX
*ctx
,
2872 const EVP_CIPHER
*ciph
,
2875 void tls_engine_finish(ENGINE
*e
);
2876 const EVP_CIPHER
*tls_get_cipher_from_engine(int nid
);
2877 const EVP_MD
*tls_get_digest_from_engine(int nid
);
2878 int tls_engine_load_ssl_client_cert(SSL_CONNECTION
*s
, X509
**px509
,
2880 int ssl_hmac_old_new(SSL_HMAC
*ret
);
2881 void ssl_hmac_old_free(SSL_HMAC
*ctx
);
2882 int ssl_hmac_old_init(SSL_HMAC
*ctx
, void *key
, size_t len
, char *md
);
2883 int ssl_hmac_old_update(SSL_HMAC
*ctx
, const unsigned char *data
, size_t len
);
2884 int ssl_hmac_old_final(SSL_HMAC
*ctx
, unsigned char *md
, size_t *len
);
2885 size_t ssl_hmac_old_size(const SSL_HMAC
*ctx
);
2887 int ssl_ctx_srp_ctx_free_intern(SSL_CTX
*ctx
);
2888 int ssl_ctx_srp_ctx_init_intern(SSL_CTX
*ctx
);
2889 int ssl_srp_ctx_free_intern(SSL_CONNECTION
*s
);
2890 int ssl_srp_ctx_init_intern(SSL_CONNECTION
*s
);
2892 int ssl_srp_calc_a_param_intern(SSL_CONNECTION
*s
);
2893 int ssl_srp_server_param_with_username_intern(SSL_CONNECTION
*s
, int *ad
);
2895 void ssl_session_calculate_timeout(SSL_SESSION
*ss
);
2897 # else /* OPENSSL_UNIT_TEST */
2899 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2903 /* Some helper routines to support TSAN operations safely */
2904 static ossl_unused ossl_inline
int ssl_tsan_lock(const SSL_CTX
*ctx
)
2906 #ifdef TSAN_REQUIRES_LOCKING
2907 if (!CRYPTO_THREAD_write_lock(ctx
->tsan_lock
))
2913 static ossl_unused ossl_inline
void ssl_tsan_unlock(const SSL_CTX
*ctx
)
2915 #ifdef TSAN_REQUIRES_LOCKING
2916 CRYPTO_THREAD_unlock(ctx
->tsan_lock
);
2920 static ossl_unused ossl_inline
void ssl_tsan_counter(const SSL_CTX
*ctx
,
2921 TSAN_QUALIFIER
int *stat
)
2923 if (ssl_tsan_lock(ctx
)) {
2925 ssl_tsan_unlock(ctx
);
2929 int ossl_comp_has_alg(int a
);
2930 size_t ossl_calculate_comp_expansion(int alg
, size_t length
);
2932 void ossl_ssl_set_custom_record_layer(SSL_CONNECTION
*s
,
2933 const OSSL_RECORD_METHOD
*meth
,