2 * Copyright 1995-2023 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 "internal/ssl.h"
40 # include "record/record.h"
42 # ifdef OPENSSL_BUILD_SHLIBSSL
43 # undef OPENSSL_EXTERN
44 # define OPENSSL_EXTERN OPENSSL_EXPORT
47 # define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION
48 # define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION
51 * DTLS version numbers are strange because they're inverted. Except for
52 * DTLS1_BAD_VER, which should be considered "lower" than the rest.
54 # define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
55 # define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
56 # define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
57 # define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
58 # define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
60 # define SSL_AD_NO_ALERT -1
63 * Define the Bitmasks for SSL_CIPHER.algorithms.
64 * This bits are used packed as dense as possible. If new methods/ciphers
65 * etc will be added, the bits a likely to change, so this information
66 * is for internal library use only, even though SSL_CIPHER.algorithms
67 * can be publicly accessed.
68 * Use the according functions for cipher management instead.
70 * The bit mask handling in the selection and sorting scheme in
71 * ssl_create_cipher_list() has only limited capabilities, reflecting
72 * that the different entities within are mutually exclusive:
73 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
76 /* Bits for algorithm_mkey (key exchange algorithm) */
77 /* RSA key exchange */
78 # define SSL_kRSA 0x00000001U
79 /* tmp DH key no DH cert */
80 # define SSL_kDHE 0x00000002U
82 # define SSL_kEDH SSL_kDHE
84 # define SSL_kECDHE 0x00000004U
86 # define SSL_kEECDH SSL_kECDHE
88 # define SSL_kPSK 0x00000008U
89 /* GOST key exchange */
90 # define SSL_kGOST 0x00000010U
92 # define SSL_kSRP 0x00000020U
94 # define SSL_kRSAPSK 0x00000040U
95 # define SSL_kECDHEPSK 0x00000080U
96 # define SSL_kDHEPSK 0x00000100U
97 /* GOST KDF key exchange, draft-smyshlyaev-tls12-gost-suites */
98 # define SSL_kGOST18 0x00000200U
102 # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
104 /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
105 # define SSL_kANY 0x00000000U
107 /* Bits for algorithm_auth (server authentication) */
109 # define SSL_aRSA 0x00000001U
111 # define SSL_aDSS 0x00000002U
112 /* no auth (i.e. use ADH or AECDH) */
113 # define SSL_aNULL 0x00000004U
115 # define SSL_aECDSA 0x00000008U
117 # define SSL_aPSK 0x00000010U
118 /* GOST R 34.10-2001 signature auth */
119 # define SSL_aGOST01 0x00000020U
121 # define SSL_aSRP 0x00000040U
122 /* GOST R 34.10-2012 signature auth */
123 # define SSL_aGOST12 0x00000080U
124 /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
125 # define SSL_aANY 0x00000000U
126 /* All bits requiring a certificate */
128 (SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12)
130 /* Bits for algorithm_enc (symmetric encryption) */
131 # define SSL_DES 0x00000001U
132 # define SSL_3DES 0x00000002U
133 # define SSL_RC4 0x00000004U
134 # define SSL_RC2 0x00000008U
135 # define SSL_IDEA 0x00000010U
136 # define SSL_eNULL 0x00000020U
137 # define SSL_AES128 0x00000040U
138 # define SSL_AES256 0x00000080U
139 # define SSL_CAMELLIA128 0x00000100U
140 # define SSL_CAMELLIA256 0x00000200U
141 # define SSL_eGOST2814789CNT 0x00000400U
142 # define SSL_SEED 0x00000800U
143 # define SSL_AES128GCM 0x00001000U
144 # define SSL_AES256GCM 0x00002000U
145 # define SSL_AES128CCM 0x00004000U
146 # define SSL_AES256CCM 0x00008000U
147 # define SSL_AES128CCM8 0x00010000U
148 # define SSL_AES256CCM8 0x00020000U
149 # define SSL_eGOST2814789CNT12 0x00040000U
150 # define SSL_CHACHA20POLY1305 0x00080000U
151 # define SSL_ARIA128GCM 0x00100000U
152 # define SSL_ARIA256GCM 0x00200000U
153 # define SSL_MAGMA 0x00400000U
154 # define SSL_KUZNYECHIK 0x00800000U
156 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
157 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
158 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
159 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
160 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
161 # define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM)
162 # define SSL_ARIA (SSL_ARIAGCM)
163 # define SSL_CBC (SSL_DES | SSL_3DES | SSL_RC2 | SSL_IDEA \
164 | SSL_AES128 | SSL_AES256 | SSL_CAMELLIA128 \
165 | SSL_CAMELLIA256 | SSL_SEED)
167 /* Bits for algorithm_mac (symmetric authentication) */
169 # define SSL_MD5 0x00000001U
170 # define SSL_SHA1 0x00000002U
171 # define SSL_GOST94 0x00000004U
172 # define SSL_GOST89MAC 0x00000008U
173 # define SSL_SHA256 0x00000010U
174 # define SSL_SHA384 0x00000020U
175 /* Not a real MAC, just an indication it is part of cipher */
176 # define SSL_AEAD 0x00000040U
177 # define SSL_GOST12_256 0x00000080U
178 # define SSL_GOST89MAC12 0x00000100U
179 # define SSL_GOST12_512 0x00000200U
180 # define SSL_MAGMAOMAC 0x00000400U
181 # define SSL_KUZNYECHIKOMAC 0x00000800U
184 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
185 * sure to update this constant too
188 # define SSL_MD_MD5_IDX 0
189 # define SSL_MD_SHA1_IDX 1
190 # define SSL_MD_GOST94_IDX 2
191 # define SSL_MD_GOST89MAC_IDX 3
192 # define SSL_MD_SHA256_IDX 4
193 # define SSL_MD_SHA384_IDX 5
194 # define SSL_MD_GOST12_256_IDX 6
195 # define SSL_MD_GOST89MAC12_IDX 7
196 # define SSL_MD_GOST12_512_IDX 8
197 # define SSL_MD_MD5_SHA1_IDX 9
198 # define SSL_MD_SHA224_IDX 10
199 # define SSL_MD_SHA512_IDX 11
200 # define SSL_MD_MAGMAOMAC_IDX 12
201 # define SSL_MD_KUZNYECHIKOMAC_IDX 13
202 # define SSL_MAX_DIGEST 14
204 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
206 /* Bits for algorithm2 (handshake digests and other extra flags) */
208 /* Bits 0-7 are handshake MAC */
209 # define SSL_HANDSHAKE_MAC_MASK 0xFF
210 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
211 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
212 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
213 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
214 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
215 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
216 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
218 /* Bits 8-15 bits are PRF */
219 # define TLS1_PRF_DGST_SHIFT 8
220 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
221 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
222 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
223 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
224 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
225 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
226 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
229 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
230 * goes into algorithm2)
232 # define TLS1_STREAM_MAC 0x10000
234 * TLSTREE cipher/mac key derivation from draft-smyshlyaev-tls12-gost-suites
235 * (currently this also goes into algorithm2)
237 # define TLS1_TLSTREE 0x20000
239 /* Ciphersuite supported in QUIC */
240 # define SSL_QUIC 0x00040000U
242 # define SSL_STRONG_MASK 0x0000001FU
243 # define SSL_DEFAULT_MASK 0X00000020U
245 # define SSL_STRONG_NONE 0x00000001U
246 # define SSL_LOW 0x00000002U
247 # define SSL_MEDIUM 0x00000004U
248 # define SSL_HIGH 0x00000008U
249 # define SSL_FIPS 0x00000010U
250 # define SSL_NOT_DEFAULT 0x00000020U
252 /* we have used 0000003f - 26 bits left to go */
254 /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
255 # define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
257 /* Check if an SSL structure is using DTLS */
258 # define SSL_CONNECTION_IS_DTLS(s) \
259 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
261 /* Check if we are using TLSv1.3 */
262 # define SSL_CONNECTION_IS_TLS13(s) (!SSL_CONNECTION_IS_DTLS(s) \
263 && SSL_CONNECTION_GET_SSL(s)->method->version >= TLS1_3_VERSION \
264 && SSL_CONNECTION_GET_SSL(s)->method->version != TLS_ANY_VERSION)
266 # define SSL_CONNECTION_TREAT_AS_TLS13(s) \
267 (SSL_CONNECTION_IS_TLS13(s) \
268 || (s)->early_data_state == SSL_EARLY_DATA_CONNECTING \
269 || (s)->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY \
270 || (s)->early_data_state == SSL_EARLY_DATA_WRITING \
271 || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \
272 || (s)->hello_retry_request == SSL_HRR_PENDING)
274 # define SSL_IS_FIRST_HANDSHAKE(s) ((s)->s3.tmp.finish_md_len == 0 \
275 || (s)->s3.tmp.peer_finish_md_len == 0)
277 /* See if we need explicit IV */
278 # define SSL_USE_EXPLICIT_IV(s) \
279 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
281 * See if we use signature algorithms extension and signature algorithm
284 # define SSL_USE_SIGALGS(s) \
285 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
287 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
288 * apply to others in future.
290 # define SSL_USE_TLS1_2_CIPHERS(s) \
291 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
293 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
294 * flags because it may not be set to correct version yet.
296 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
297 ((!SSL_CONNECTION_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
298 (SSL_CONNECTION_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
300 * Determine if a client should send signature algorithms extension:
301 * as with TLS1.2 cipher we can't rely on method flags.
303 # define SSL_CLIENT_USE_SIGALGS(s) \
304 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
306 # define IS_MAX_FRAGMENT_LENGTH_EXT_VALID(value) \
307 (((value) >= TLSEXT_max_fragment_length_512) && \
308 ((value) <= TLSEXT_max_fragment_length_4096))
309 # define USE_MAX_FRAGMENT_LENGTH_EXT(session) \
310 IS_MAX_FRAGMENT_LENGTH_EXT_VALID(session->ext.max_fragment_len_mode)
311 # define GET_MAX_FRAGMENT_LENGTH(session) \
312 (512U << (session->ext.max_fragment_len_mode - 1))
314 # define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ)
315 # define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE)
317 # define SSL_IS_QUIC_HANDSHAKE(s) (((s)->s3.flags & TLS1_FLAGS_QUIC) != 0)
319 /* alert_dispatch values */
321 /* No alert pending */
322 # define SSL_ALERT_DISPATCH_NONE 0
324 # define SSL_ALERT_DISPATCH_PENDING 1
325 /* Pending alert write needs to be retried */
326 # define SSL_ALERT_DISPATCH_RETRY 2
328 /* Mostly for SSLv3 */
329 # define SSL_PKEY_RSA 0
330 # define SSL_PKEY_RSA_PSS_SIGN 1
331 # define SSL_PKEY_DSA_SIGN 2
332 # define SSL_PKEY_ECC 3
333 # define SSL_PKEY_GOST01 4
334 # define SSL_PKEY_GOST12_256 5
335 # define SSL_PKEY_GOST12_512 6
336 # define SSL_PKEY_ED25519 7
337 # define SSL_PKEY_ED448 8
338 # define SSL_PKEY_NUM 9
340 # define SSL_ENC_DES_IDX 0
341 # define SSL_ENC_3DES_IDX 1
342 # define SSL_ENC_RC4_IDX 2
343 # define SSL_ENC_RC2_IDX 3
344 # define SSL_ENC_IDEA_IDX 4
345 # define SSL_ENC_NULL_IDX 5
346 # define SSL_ENC_AES128_IDX 6
347 # define SSL_ENC_AES256_IDX 7
348 # define SSL_ENC_CAMELLIA128_IDX 8
349 # define SSL_ENC_CAMELLIA256_IDX 9
350 # define SSL_ENC_GOST89_IDX 10
351 # define SSL_ENC_SEED_IDX 11
352 # define SSL_ENC_AES128GCM_IDX 12
353 # define SSL_ENC_AES256GCM_IDX 13
354 # define SSL_ENC_AES128CCM_IDX 14
355 # define SSL_ENC_AES256CCM_IDX 15
356 # define SSL_ENC_AES128CCM8_IDX 16
357 # define SSL_ENC_AES256CCM8_IDX 17
358 # define SSL_ENC_GOST8912_IDX 18
359 # define SSL_ENC_CHACHA_IDX 19
360 # define SSL_ENC_ARIA128GCM_IDX 20
361 # define SSL_ENC_ARIA256GCM_IDX 21
362 # define SSL_ENC_MAGMA_IDX 22
363 # define SSL_ENC_KUZNYECHIK_IDX 23
364 # define SSL_ENC_NUM_IDX 24
367 * SSL_kRSA <- RSA_ENC
368 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
369 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
370 * SSL_aRSA <- RSA_ENC | RSA_SIGN
371 * SSL_aDSS <- DSA_SIGN
375 #define CERT_INVALID 0
376 #define CERT_PUBLIC_KEY 1
377 #define CERT_PRIVATE_KEY 2
380 /* Certificate Type State */
381 # define OSSL_CERT_TYPE_CTOS_NONE 0
382 # define OSSL_CERT_TYPE_CTOS_GOOD 1
383 # define OSSL_CERT_TYPE_CTOS_ERROR 2
385 /* Post-Handshake Authentication state */
388 SSL_PHA_EXT_SENT
, /* client-side only: extension sent */
389 SSL_PHA_EXT_RECEIVED
, /* server-side only: extension received */
390 SSL_PHA_REQUEST_PENDING
, /* server-side only: request pending */
391 SSL_PHA_REQUESTED
/* request received by client, or sent by server */
394 /* CipherSuite length. SSLv3 and all TLS versions. */
395 # define TLS_CIPHER_LEN 2
396 /* used to hold info on the particular ciphers used */
397 struct ssl_cipher_st
{
399 const char *name
; /* text name */
400 const char *stdname
; /* RFC name */
401 uint32_t id
; /* id, 4 bytes, first is version */
403 * changed in 1.0.0: these four used to be portions of a single value
406 uint32_t algorithm_mkey
; /* key exchange algorithm */
407 uint32_t algorithm_auth
; /* server authentication */
408 uint32_t algorithm_enc
; /* symmetric encryption */
409 uint32_t algorithm_mac
; /* symmetric authentication */
410 int min_tls
; /* minimum SSL/TLS protocol version */
411 int max_tls
; /* maximum SSL/TLS protocol version */
412 int min_dtls
; /* minimum DTLS protocol version */
413 int max_dtls
; /* maximum DTLS protocol version */
414 uint32_t algo_strength
; /* strength and export flags */
415 uint32_t algorithm2
; /* Extra flags */
416 int32_t strength_bits
; /* Number of bits really used */
417 uint32_t alg_bits
; /* Number of bits for algorithm */
420 /* Used to hold SSL/TLS functions */
421 struct ssl_method_st
{
425 SSL
*(*ssl_new
) (SSL_CTX
*ctx
);
426 void (*ssl_free
) (SSL
*s
);
427 int (*ssl_reset
) (SSL
*s
);
428 int (*ssl_init
) (SSL
*s
);
429 int (*ssl_clear
) (SSL
*s
);
430 void (*ssl_deinit
) (SSL
*s
);
431 int (*ssl_accept
) (SSL
*s
);
432 int (*ssl_connect
) (SSL
*s
);
433 int (*ssl_read
) (SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
434 int (*ssl_peek
) (SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
435 int (*ssl_write
) (SSL
*s
, const void *buf
, size_t len
, size_t *written
);
436 int (*ssl_shutdown
) (SSL
*s
);
437 int (*ssl_renegotiate
) (SSL
*s
);
438 int (*ssl_renegotiate_check
) (SSL
*s
, int);
439 int (*ssl_read_bytes
) (SSL
*s
, uint8_t type
, uint8_t *recvd_type
,
440 unsigned char *buf
, size_t len
, int peek
,
442 int (*ssl_write_bytes
) (SSL
*s
, uint8_t type
, const void *buf_
, size_t len
,
444 int (*ssl_dispatch_alert
) (SSL
*s
);
445 long (*ssl_ctrl
) (SSL
*s
, int cmd
, long larg
, void *parg
);
446 long (*ssl_ctx_ctrl
) (SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
);
447 const SSL_CIPHER
*(*get_cipher_by_char
) (const unsigned char *ptr
);
448 int (*put_cipher_by_char
) (const SSL_CIPHER
*cipher
, WPACKET
*pkt
,
450 size_t (*ssl_pending
) (const SSL
*s
);
451 int (*num_ciphers
) (void);
452 const SSL_CIPHER
*(*get_cipher
) (unsigned ncipher
);
453 OSSL_TIME (*get_timeout
) (void);
454 const struct ssl3_enc_method
*ssl3_enc
; /* Extra SSLv3/TLS stuff */
455 int (*ssl_version
) (void);
456 long (*ssl_callback_ctrl
) (SSL
*s
, int cb_id
, void (*fp
) (void));
457 long (*ssl_ctx_callback_ctrl
) (SSL_CTX
*s
, int cb_id
, void (*fp
) (void));
461 * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for
462 * consistency, even in the event of OPENSSL_NO_PSK being defined.
464 # define TLS13_MAX_RESUMPTION_PSK_LENGTH 512
467 * Lets make this into an ASN.1 type structure as follows
468 * SSL_SESSION_ID ::= SEQUENCE {
469 * version INTEGER, -- structure version number
470 * SSLversion INTEGER, -- SSL version number
471 * Cipher OCTET STRING, -- the 3 byte cipher ID
472 * Session_ID OCTET STRING, -- the Session ID
473 * Master_key OCTET STRING, -- the master key
474 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
475 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
476 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
477 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
478 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
479 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
480 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
481 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
482 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
483 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
484 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
485 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
486 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
487 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
489 * Look in ssl/ssl_asn1.c for more details
490 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
492 struct ssl_session_st
{
493 int ssl_version
; /* what ssl version session info is being kept
495 size_t master_key_length
;
497 /* TLSv1.3 early_secret used for external PSKs */
498 unsigned char early_secret
[EVP_MAX_MD_SIZE
];
500 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
503 unsigned char master_key
[TLS13_MAX_RESUMPTION_PSK_LENGTH
];
504 /* session_id - valid? */
505 size_t session_id_length
;
506 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
508 * this is used to determine whether the session is being reused in the
509 * appropriate context. It is up to the application to set this, via
512 size_t sid_ctx_length
;
513 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
514 # ifndef OPENSSL_NO_PSK
515 char *psk_identity_hint
;
519 * Used to indicate that session resumption is not allowed. Applications
520 * can also set this bit for a new session via not_resumable_session_cb
521 * to disable session caching and tickets.
524 /* Peer raw public key, if available */
526 /* This is the cert and type for the other end. */
528 /* Certificate chain peer sent. */
529 STACK_OF(X509
) *peer_chain
;
531 * when app_verify_callback accepts a session where the peer's
532 * certificate is not ok, we must remember the error for session reuse:
534 long verify_result
; /* only for servers */
535 CRYPTO_REF_COUNT references
;
538 OSSL_TIME calc_timeout
;
539 unsigned int compress_meth
; /* Need to lookup the method */
540 const SSL_CIPHER
*cipher
;
541 unsigned long cipher_id
; /* when ASN.1 loaded, this needs to be used to
542 * load the 'cipher' structure */
543 unsigned int kex_group
; /* TLS group from key exchange */
544 CRYPTO_EX_DATA ex_data
; /* application specific data */
546 * These are used to make removal of session-ids more efficient and to
547 * implement a maximum cache size.
549 struct ssl_session_st
*prev
, *next
;
554 unsigned char *tick
; /* Session ticket */
555 size_t ticklen
; /* Session ticket length */
556 /* Session lifetime hint in seconds */
557 unsigned long tick_lifetime_hint
;
558 uint32_t tick_age_add
;
559 /* Max number of bytes that can be sent as early data */
560 uint32_t max_early_data
;
561 /* The ALPN protocol selected for this session */
562 unsigned char *alpn_selected
;
563 size_t alpn_selected_len
;
565 * Maximum Fragment Length as per RFC 4366.
566 * If this value does not contain RFC 4366 allowed values (1-4) then
567 * either the Maximum Fragment Length Negotiation failed or was not
570 uint8_t max_fragment_len_mode
;
572 # ifndef OPENSSL_NO_SRP
575 unsigned char *ticket_appdata
;
576 size_t ticket_appdata_len
;
581 /* Extended master secret support */
582 # define SSL_SESS_FLAG_EXTMS 0x1
584 # ifndef OPENSSL_NO_SRP
586 typedef struct srp_ctx_st
{
587 /* param for all the callbacks */
589 /* set client Hello login callback */
590 int (*TLS_ext_srp_username_callback
) (SSL
*, int *, void *);
591 /* set SRP N/g param callback for verification */
592 int (*SRP_verify_param_callback
) (SSL
*, void *);
593 /* set SRP client passwd callback */
594 char *(*SRP_give_srp_client_pwd_callback
) (SSL
*, void *);
596 BIGNUM
*N
, *g
, *s
, *B
, *A
;
600 unsigned long srp_Mask
;
606 SSL_EARLY_DATA_NONE
= 0,
607 SSL_EARLY_DATA_CONNECT_RETRY
,
608 SSL_EARLY_DATA_CONNECTING
,
609 SSL_EARLY_DATA_WRITE_RETRY
,
610 SSL_EARLY_DATA_WRITING
,
611 SSL_EARLY_DATA_WRITE_FLUSH
,
612 SSL_EARLY_DATA_UNAUTH_WRITING
,
613 SSL_EARLY_DATA_FINISHED_WRITING
,
614 SSL_EARLY_DATA_ACCEPT_RETRY
,
615 SSL_EARLY_DATA_ACCEPTING
,
616 SSL_EARLY_DATA_READ_RETRY
,
617 SSL_EARLY_DATA_READING
,
618 SSL_EARLY_DATA_FINISHED_READING
619 } SSL_EARLY_DATA_STATE
;
622 * We check that the amount of unreadable early data doesn't exceed
623 * max_early_data. max_early_data is given in plaintext bytes. However if it is
624 * unreadable then we only know the number of ciphertext bytes. We also don't
625 * know how much the overhead should be because it depends on the ciphersuite.
626 * We make a small allowance. We assume 5 records of actual data plus the end
627 * of early data alert record. Each record has a tag and a content type byte.
628 * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
629 * content of the alert record either which is 2 bytes.
631 # define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
634 * The allowance we have between the client's calculated ticket age and our own.
635 * We allow for 10 seconds. If a ticket is presented and the
636 * client's age calculation is different by more than this than our own then we
637 * do not allow that ticket for early_data.
639 # define TICKET_AGE_ALLOWANCE ossl_seconds2time(10)
641 #define MAX_COMPRESSIONS_SIZE 255
649 typedef struct raw_extension_st
{
650 /* Raw packet data for the extension */
652 /* Set to 1 if the extension is present or 0 otherwise */
654 /* Set to 1 if we have already parsed the extension or 0 otherwise */
656 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
658 /* Track what order extensions are received in (0-based). */
659 size_t received_order
;
664 unsigned int legacy_version
;
665 unsigned char random
[SSL3_RANDOM_SIZE
];
666 size_t session_id_len
;
667 unsigned char session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
668 size_t dtls_cookie_len
;
669 unsigned char dtls_cookie
[DTLS1_COOKIE_LENGTH
];
671 size_t compressions_len
;
672 unsigned char compressions
[MAX_COMPRESSIONS_SIZE
];
674 size_t pre_proc_exts_len
;
675 RAW_EXTENSION
*pre_proc_exts
;
679 * Extension index values NOTE: Any updates to these defines should be mirrored
680 * with equivalent updates to ext_defs in extensions.c
682 typedef enum tlsext_index_en
{
683 TLSEXT_IDX_renegotiate
,
684 TLSEXT_IDX_server_name
,
685 TLSEXT_IDX_max_fragment_length
,
687 TLSEXT_IDX_ec_point_formats
,
688 TLSEXT_IDX_supported_groups
,
689 TLSEXT_IDX_session_ticket
,
690 TLSEXT_IDX_status_request
,
691 TLSEXT_IDX_next_proto_neg
,
692 TLSEXT_IDX_application_layer_protocol_negotiation
,
694 TLSEXT_IDX_encrypt_then_mac
,
695 TLSEXT_IDX_signed_certificate_timestamp
,
696 TLSEXT_IDX_extended_master_secret
,
697 TLSEXT_IDX_signature_algorithms_cert
,
698 TLSEXT_IDX_post_handshake_auth
,
699 TLSEXT_IDX_client_cert_type
,
700 TLSEXT_IDX_server_cert_type
,
701 TLSEXT_IDX_signature_algorithms
,
702 TLSEXT_IDX_supported_versions
,
703 TLSEXT_IDX_psk_kex_modes
,
704 TLSEXT_IDX_key_share
,
706 TLSEXT_IDX_cryptopro_bug
,
707 TLSEXT_IDX_compress_certificate
,
708 TLSEXT_IDX_early_data
,
709 TLSEXT_IDX_certificate_authorities
,
712 /* Dummy index - must always be the last entry */
713 TLSEXT_IDX_num_builtins
716 DEFINE_LHASH_OF_EX(SSL_SESSION
);
717 /* Needed in ssl_cert.c */
718 DEFINE_LHASH_OF_EX(X509_NAME
);
720 # define TLSEXT_KEYNAME_LENGTH 16
721 # define TLSEXT_TICK_KEY_LENGTH 32
723 typedef struct ssl_ctx_ext_secure_st
{
724 unsigned char tick_hmac_key
[TLSEXT_TICK_KEY_LENGTH
];
725 unsigned char tick_aes_key
[TLSEXT_TICK_KEY_LENGTH
];
726 } SSL_CTX_EXT_SECURE
;
729 * Helper function for HMAC
730 * The structure should be considered opaque, it will change once the low
731 * level deprecated calls are removed. At that point it can be replaced
732 * by EVP_MAC_CTX and most of the functions converted to macros or inlined
735 typedef struct ssl_hmac_st
{
737 # ifndef OPENSSL_NO_DEPRECATED_3_0
742 SSL_HMAC
*ssl_hmac_new(const SSL_CTX
*ctx
);
743 void ssl_hmac_free(SSL_HMAC
*ctx
);
744 # ifndef OPENSSL_NO_DEPRECATED_3_0
745 HMAC_CTX
*ssl_hmac_get0_HMAC_CTX(SSL_HMAC
*ctx
);
747 EVP_MAC_CTX
*ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC
*ctx
);
748 int ssl_hmac_init(SSL_HMAC
*ctx
, void *key
, size_t len
, char *md
);
749 int ssl_hmac_update(SSL_HMAC
*ctx
, const unsigned char *data
, size_t len
);
750 int ssl_hmac_final(SSL_HMAC
*ctx
, unsigned char *md
, size_t *len
,
752 size_t ssl_hmac_size(const SSL_HMAC
*ctx
);
754 int ssl_get_EC_curve_nid(const EVP_PKEY
*pkey
);
755 __owur
int tls13_set_encoded_pub_key(EVP_PKEY
*pkey
,
756 const unsigned char *enckey
,
759 typedef struct tls_group_info_st
{
760 char *tlsname
; /* Curve Name as in TLS specs */
761 char *realname
; /* Curve Name according to provider */
762 char *algorithm
; /* Algorithm name to fetch */
763 unsigned int secbits
; /* Bits of security (from SP800-57) */
764 uint16_t group_id
; /* Group ID */
765 int mintls
; /* Minimum TLS version, -1 unsupported */
766 int maxtls
; /* Maximum TLS version (or 0 for undefined) */
767 int mindtls
; /* Minimum DTLS version, -1 unsupported */
768 int maxdtls
; /* Maximum DTLS version (or 0 for undefined) */
769 char is_kem
; /* Mode for this Group: 0 is KEX, 1 is KEM */
772 typedef struct tls_sigalg_info_st
{
773 char *name
; /* name as in IANA TLS specs */
774 uint16_t code_point
; /* IANA-specified code point of sigalg-name */
775 char *sigalg_name
; /* (combined) sigalg name */
776 char *sigalg_oid
; /* (combined) sigalg OID */
777 char *sig_name
; /* pure signature algorithm name */
778 char *sig_oid
; /* pure signature algorithm OID */
779 char *hash_name
; /* hash algorithm name */
780 char *hash_oid
; /* hash algorithm OID */
781 char *keytype
; /* keytype name */
782 char *keytype_oid
; /* keytype OID */
783 unsigned int secbits
; /* Bits of security (from SP800-57) */
784 int mintls
; /* Minimum TLS version, -1 unsupported */
785 int maxtls
; /* Maximum TLS version (or 0 for undefined) */
789 * Structure containing table entry of certificate info corresponding to
793 int nid
; /* NID of public key algorithm */
794 uint32_t amask
; /* authmask corresponding to key type */
798 # define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */
799 # define TLS_GROUP_CURVE_PRIME 0x00000001U
800 # define TLS_GROUP_CURVE_CHAR2 0x00000002U
801 # define TLS_GROUP_CURVE_CUSTOM 0x00000004U
802 # define TLS_GROUP_FFDHE 0x00000008U
803 # define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U
805 # define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3)
808 OSSL_LIB_CTX
*libctx
;
810 const SSL_METHOD
*method
;
811 STACK_OF(SSL_CIPHER
) *cipher_list
;
812 /* same as above but sorted for lookup */
813 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
814 /* TLSv1.3 specific ciphersuites */
815 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
;
816 struct x509_store_st
/* X509_STORE */ *cert_store
;
817 LHASH_OF(SSL_SESSION
) *sessions
;
819 * Most session-ids that will be cached, default is
820 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
822 size_t session_cache_size
;
823 struct ssl_session_st
*session_cache_head
;
824 struct ssl_session_st
*session_cache_tail
;
826 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
827 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
828 * means only SSL_accept will cache SSL_SESSIONS.
830 uint32_t session_cache_mode
;
832 * If timeout is not 0, it is the default timeout value set when
833 * SSL_new() is called. This has been put in to make life easier to set
836 OSSL_TIME session_timeout
;
838 * If this callback is not null, it will be called each time a session id
839 * is added to the cache. If this function returns 1, it means that the
840 * callback will do a SSL_SESSION_free() when it has finished using it.
841 * Otherwise, on 0, it means the callback has finished with it. If
842 * remove_session_cb is not null, it will be called when a session-id is
843 * removed from the cache. After the call, OpenSSL will
844 * SSL_SESSION_free() it.
846 int (*new_session_cb
) (struct ssl_st
*ssl
, SSL_SESSION
*sess
);
847 void (*remove_session_cb
) (struct ssl_ctx_st
*ctx
, SSL_SESSION
*sess
);
848 SSL_SESSION
*(*get_session_cb
) (struct ssl_st
*ssl
,
849 const unsigned char *data
, int len
,
852 TSAN_QUALIFIER
int sess_connect
; /* SSL new conn - started */
853 TSAN_QUALIFIER
int sess_connect_renegotiate
; /* SSL reneg - requested */
854 TSAN_QUALIFIER
int sess_connect_good
; /* SSL new conne/reneg - finished */
855 TSAN_QUALIFIER
int sess_accept
; /* SSL new accept - started */
856 TSAN_QUALIFIER
int sess_accept_renegotiate
; /* SSL reneg - requested */
857 TSAN_QUALIFIER
int sess_accept_good
; /* SSL accept/reneg - finished */
858 TSAN_QUALIFIER
int sess_miss
; /* session lookup misses */
859 TSAN_QUALIFIER
int sess_timeout
; /* reuse attempt on timeouted session */
860 TSAN_QUALIFIER
int sess_cache_full
; /* session removed due to full cache */
861 TSAN_QUALIFIER
int sess_hit
; /* session reuse actually done */
862 TSAN_QUALIFIER
int sess_cb_hit
; /* session-id that was not in
863 * the cache was passed back via
864 * the callback. This indicates
865 * that the application is
866 * supplying session-id's from
867 * other processes - spooky
870 #ifdef TSAN_REQUIRES_LOCKING
871 CRYPTO_RWLOCK
*tsan_lock
;
874 CRYPTO_REF_COUNT references
;
876 /* if defined, these override the X509_verify_cert() calls */
877 int (*app_verify_callback
) (X509_STORE_CTX
*, void *);
878 void *app_verify_arg
;
880 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
881 * ('app_verify_callback' was called with just one argument)
884 /* Default password callback. */
885 pem_password_cb
*default_passwd_callback
;
887 /* Default password callback user data. */
888 void *default_passwd_callback_userdata
;
890 /* get client cert callback */
891 int (*client_cert_cb
) (SSL
*ssl
, X509
**x509
, EVP_PKEY
**pkey
);
893 /* cookie generate callback */
894 int (*app_gen_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
895 unsigned int *cookie_len
);
897 /* verify cookie callback */
898 int (*app_verify_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
899 unsigned int cookie_len
);
901 /* TLS1.3 app-controlled cookie generate callback */
902 int (*gen_stateless_cookie_cb
) (SSL
*ssl
, unsigned char *cookie
,
905 /* TLS1.3 verify app-controlled cookie callback */
906 int (*verify_stateless_cookie_cb
) (SSL
*ssl
, const unsigned char *cookie
,
909 CRYPTO_EX_DATA ex_data
;
911 const EVP_MD
*md5
; /* For SSLv3/TLSv1 'ssl3-md5' */
912 const EVP_MD
*sha1
; /* For SSLv3/TLSv1 'ssl3-sha1' */
914 STACK_OF(X509
) *extra_certs
;
915 STACK_OF(SSL_COMP
) *comp_methods
; /* stack of SSL_COMP, SSLv3/TLSv1 */
917 /* Default values used when no per-SSL value is defined follow */
919 /* used if SSL's info_callback is NULL */
920 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
923 * What we put in certificate_authorities extension for TLS 1.3
924 * (ClientHello and CertificateRequest) or just client cert requests for
925 * earlier versions. If client_ca_names is populated then it is only used
926 * for client cert requests, and in preference to ca_names.
928 STACK_OF(X509_NAME
) *ca_names
;
929 STACK_OF(X509_NAME
) *client_ca_names
;
932 * Default values to use in SSL structures follow (these are copied by
938 int min_proto_version
;
939 int max_proto_version
;
940 size_t max_cert_list
;
942 struct cert_st
/* CERT */ *cert
;
943 SSL_CERT_LOOKUP
*ssl_cert_info
;
946 /* callback that allows applications to peek at protocol messages */
947 ossl_msg_cb msg_callback
;
948 void *msg_callback_arg
;
950 uint32_t verify_mode
;
951 size_t sid_ctx_length
;
952 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
953 /* called 'verify_callback' in the SSL */
954 int (*default_verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
956 /* Default generate session ID callback. */
957 GEN_SESSION_CB generate_session_id
;
959 X509_VERIFY_PARAM
*param
;
963 # ifndef OPENSSL_NO_CT
964 CTLOG_STORE
*ctlog_store
; /* CT Log Store */
966 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
967 * If they are not, the connection should be aborted.
969 ssl_ct_validation_cb ct_validation_callback
;
970 void *ct_validation_callback_arg
;
974 * If we're using more than one pipeline how should we divide the data
975 * up between the pipes?
977 size_t split_send_fragment
;
979 * Maximum amount of data to send in one fragment. actual record size can
980 * be more than this due to padding and MAC overheads.
982 size_t max_send_fragment
;
984 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
985 size_t max_pipelines
;
987 /* The default read buffer length to use (0 means not set) */
988 size_t default_read_buf_len
;
990 # ifndef OPENSSL_NO_ENGINE
992 * Engine to pass requests for client certs to
994 ENGINE
*client_cert_engine
;
997 /* ClientHello callback. Mostly for extensions, but not entirely. */
998 SSL_client_hello_cb_fn client_hello_cb
;
999 void *client_hello_cb_arg
;
1001 /* TLS extensions. */
1003 /* TLS extensions servername callback */
1004 int (*servername_cb
) (SSL
*, int *, void *);
1005 void *servername_arg
;
1006 /* RFC 4507 session ticket keys */
1007 unsigned char tick_key_name
[TLSEXT_KEYNAME_LENGTH
];
1008 SSL_CTX_EXT_SECURE
*secure
;
1009 # ifndef OPENSSL_NO_DEPRECATED_3_0
1010 /* Callback to support customisation of ticket key setting */
1011 int (*ticket_key_cb
) (SSL
*ssl
,
1012 unsigned char *name
, unsigned char *iv
,
1013 EVP_CIPHER_CTX
*ectx
, HMAC_CTX
*hctx
, int enc
);
1015 int (*ticket_key_evp_cb
) (SSL
*ssl
,
1016 unsigned char *name
, unsigned char *iv
,
1017 EVP_CIPHER_CTX
*ectx
, EVP_MAC_CTX
*hctx
,
1020 /* certificate status request info */
1021 /* Callback for status request */
1022 int (*status_cb
) (SSL
*ssl
, void *arg
);
1024 /* ext status type used for CSR extension (OCSP Stapling) */
1026 /* RFC 4366 Maximum Fragment Length Negotiation */
1027 uint8_t max_fragment_len_mode
;
1029 /* EC extension values inherited by SSL structure */
1030 size_t ecpointformats_len
;
1031 unsigned char *ecpointformats
;
1033 size_t supportedgroups_len
;
1034 uint16_t *supportedgroups
;
1036 uint16_t *supported_groups_default
;
1037 size_t supported_groups_default_len
;
1039 * ALPN information (we are in the process of transitioning from NPN to
1044 * For a server, this contains a callback function that allows the
1045 * server to select the protocol for the connection.
1046 * out: on successful return, this must point to the raw protocol
1047 * name (without the length prefix).
1048 * outlen: on successful return, this contains the length of |*out|.
1049 * in: points to the client's list of supported protocols in
1051 * inlen: the length of |in|.
1053 int (*alpn_select_cb
) (SSL
*s
,
1054 const unsigned char **out
,
1055 unsigned char *outlen
,
1056 const unsigned char *in
,
1057 unsigned int inlen
, void *arg
);
1058 void *alpn_select_cb_arg
;
1061 * For a client, this contains the list of supported protocols in wire
1064 unsigned char *alpn
;
1067 # ifndef OPENSSL_NO_NEXTPROTONEG
1068 /* Next protocol negotiation information */
1071 * For a server, this contains a callback function by which the set of
1072 * advertised protocols can be provided.
1074 SSL_CTX_npn_advertised_cb_func npn_advertised_cb
;
1075 void *npn_advertised_cb_arg
;
1077 * For a client, this contains a callback function that selects the next
1078 * protocol from the list provided by the server.
1080 SSL_CTX_npn_select_cb_func npn_select_cb
;
1081 void *npn_select_cb_arg
;
1084 unsigned char cookie_hmac_key
[SHA256_DIGEST_LENGTH
];
1087 # ifndef OPENSSL_NO_PSK
1088 SSL_psk_client_cb_func psk_client_callback
;
1089 SSL_psk_server_cb_func psk_server_callback
;
1091 SSL_psk_find_session_cb_func psk_find_session_cb
;
1092 SSL_psk_use_session_cb_func psk_use_session_cb
;
1094 # ifndef OPENSSL_NO_SRP
1095 SRP_CTX srp_ctx
; /* ctx for SRP authentication */
1098 /* Shared DANE context */
1099 struct dane_ctx_st dane
;
1101 # ifndef OPENSSL_NO_SRTP
1102 /* SRTP profiles we are willing to do from RFC 5764 */
1103 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1106 * Callback for disabling session caching and ticket support on a session
1107 * basis, depending on the chosen cipher.
1109 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1111 CRYPTO_RWLOCK
*lock
;
1114 * Callback for logging key material for use with debugging tools like
1115 * Wireshark. The callback should log `line` followed by a newline.
1117 SSL_CTX_keylog_cb_func keylog_callback
;
1120 * The maximum number of bytes advertised in session tickets that can be
1121 * sent as early data.
1123 uint32_t max_early_data
;
1126 * The maximum number of bytes of early data that a server will tolerate
1127 * (which should be at least as much as max_early_data).
1129 uint32_t recv_max_early_data
;
1131 /* TLS1.3 padding callback */
1132 size_t (*record_padding_cb
)(SSL
*s
, int type
, size_t len
, void *arg
);
1133 void *record_padding_arg
;
1134 size_t block_padding
;
1136 /* Session ticket appdata */
1137 SSL_CTX_generate_session_ticket_fn generate_ticket_cb
;
1138 SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb
;
1139 void *ticket_cb_data
;
1141 /* The number of TLS1.3 tickets to automatically send */
1144 /* Callback to determine if early_data is acceptable or not */
1145 SSL_allow_early_data_cb_fn allow_early_data_cb
;
1146 void *allow_early_data_cb_data
;
1148 /* Do we advertise Post-handshake auth support? */
1151 /* Callback for SSL async handling */
1152 SSL_async_callback_fn async_cb
;
1157 int ssl_mac_pkey_id
[SSL_MD_NUM_IDX
];
1158 const EVP_CIPHER
*ssl_cipher_methods
[SSL_ENC_NUM_IDX
];
1159 const EVP_MD
*ssl_digest_methods
[SSL_MD_NUM_IDX
];
1160 size_t ssl_mac_secret_size
[SSL_MD_NUM_IDX
];
1162 size_t tls12_sigalgs_len
;
1163 /* Cache of all sigalgs we know and whether they are available or not */
1164 struct sigalg_lookup_st
*sigalg_lookup_cache
;
1165 /* List of all sigalgs (code points) available, incl. from providers */
1166 uint16_t *tls12_sigalgs
;
1168 TLS_GROUP_INFO
*group_list
;
1169 size_t group_list_len
;
1170 size_t group_list_max_len
;
1172 TLS_SIGALG_INFO
*sigalg_list
;
1173 size_t sigalg_list_len
;
1174 size_t sigalg_list_max_len
;
1176 /* masks of disabled algorithms */
1177 uint32_t disabled_enc_mask
;
1178 uint32_t disabled_mac_mask
;
1179 uint32_t disabled_mkey_mask
;
1180 uint32_t disabled_auth_mask
;
1182 #ifndef OPENSSL_NO_COMP_ALG
1183 /* certificate compression preferences */
1184 int cert_comp_prefs
[TLSEXT_comp_cert_limit
];
1187 /* Certificate Type stuff - for RPK vs X.509 */
1188 unsigned char *client_cert_type
;
1189 size_t client_cert_type_len
;
1190 unsigned char *server_cert_type
;
1191 size_t server_cert_type_len
;
1193 # ifndef OPENSSL_NO_QLOG
1194 char *qlog_title
; /* Session title for qlog */
1198 typedef struct cert_pkey_st CERT_PKEY
;
1200 #define SSL_TYPE_SSL_CONNECTION 0
1201 #define SSL_TYPE_QUIC_CONNECTION 1
1202 #define SSL_TYPE_QUIC_XSO 2
1207 const SSL_METHOD
*defltmeth
;
1208 const SSL_METHOD
*method
;
1209 CRYPTO_REF_COUNT references
;
1210 CRYPTO_RWLOCK
*lock
;
1211 /* extra application data */
1212 CRYPTO_EX_DATA ex_data
;
1215 struct ssl_connection_st
{
1216 /* type identifier and common data */
1219 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
1224 * There are 2 BIO's even though they are normally both the same. This
1225 * is so data can be read and written to different handlers
1227 /* used by SSL_read */
1229 /* used by SSL_write */
1231 /* used during session-id reuse to concatenate messages */
1234 * This holds a variable that indicates what we were doing when a 0 or -1
1235 * is returned. This is needed for non-blocking IO so we know what
1236 * request needs re-doing when in SSL_accept or SSL_connect
1239 int (*handshake_func
) (SSL
*);
1241 * Imagine that here's a boolean member "init" that is switched as soon
1242 * as SSL_set_{accept/connect}_state is called for the first time, so
1243 * that "state" and "handshake_func" are properly initialized. But as
1244 * handshake_func is == 0 until then, we use this test instead of an
1247 /* are we the server side? */
1250 * Generate a new session or reuse an old one.
1251 * NB: For servers, the 'new' session may actually be a previously
1252 * cached session or even the previous session unless
1253 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1256 /* don't send shutdown packets */
1258 /* we have shut things down, 0x01 sent, 0x02 for received */
1260 /* Timestamps used to calculate the handshake RTT */
1261 OSSL_TIME ts_msg_write
;
1262 OSSL_TIME ts_msg_read
;
1265 SSL_EARLY_DATA_STATE early_data_state
;
1266 BUF_MEM
*init_buf
; /* buffer used during init */
1267 void *init_msg
; /* pointer to handshake message body, set by
1268 * tls_get_message_header() */
1269 size_t init_num
; /* amount read/written */
1270 size_t init_off
; /* amount read/written */
1272 size_t ssl_pkey_num
;
1276 unsigned char server_random
[SSL3_RANDOM_SIZE
];
1277 unsigned char client_random
[SSL3_RANDOM_SIZE
];
1279 /* used during startup, digest all incoming/outgoing packets */
1280 BIO
*handshake_buffer
;
1282 * When handshake digest is determined, buffer is hashed and
1283 * freed and MD_CTX for the required digest is stored here.
1285 EVP_MD_CTX
*handshake_dgst
;
1287 * Set whenever an expected ChangeCipherSpec message is processed.
1288 * Unset when the peer's Finished message is received.
1289 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1291 int change_cipher_spec
;
1295 * we allow one fatal and one warning alert to be outstanding, send close
1296 * alert via the warning alert
1299 unsigned char send_alert
[2];
1301 * This flag is set when we should renegotiate ASAP, basically when there
1302 * is no more data in the read or write buffers
1305 int total_renegotiations
;
1306 int num_renegotiations
;
1307 int in_read_app_data
;
1310 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1311 unsigned char finish_md
[EVP_MAX_MD_SIZE
* 2];
1312 size_t finish_md_len
;
1313 unsigned char peer_finish_md
[EVP_MAX_MD_SIZE
* 2];
1314 size_t peer_finish_md_len
;
1315 size_t message_size
;
1317 /* used to hold the new cipher we are going to use */
1318 const SSL_CIPHER
*new_cipher
;
1319 EVP_PKEY
*pkey
; /* holds short lived key exchange key */
1320 /* used for certificate requests */
1322 /* Certificate types in certificate request message. */
1325 /* Certificate authorities list peer sent */
1326 STACK_OF(X509_NAME
) *peer_ca_names
;
1327 size_t key_block_length
;
1328 unsigned char *key_block
;
1329 const EVP_CIPHER
*new_sym_enc
;
1330 const EVP_MD
*new_hash
;
1331 int new_mac_pkey_type
;
1332 size_t new_mac_secret_size
;
1333 # ifndef OPENSSL_NO_COMP
1334 const SSL_COMP
*new_compression
;
1336 char *new_compression
;
1339 /* Raw values of the cipher list from a client */
1340 unsigned char *ciphers_raw
;
1341 size_t ciphers_rawlen
;
1342 /* Temporary storage for premaster secret */
1345 # ifndef OPENSSL_NO_PSK
1346 /* Temporary storage for PSK key */
1350 /* Signature algorithm we actually use */
1351 const struct sigalg_lookup_st
*sigalg
;
1352 /* Pointer to certificate we use */
1355 * signature algorithms peer reports: e.g. supported signature
1356 * algorithms extension for server or as part of a certificate
1357 * request for client.
1358 * Keep track of the algorithms for TLS and X.509 usage separately.
1360 uint16_t *peer_sigalgs
;
1361 uint16_t *peer_cert_sigalgs
;
1362 /* Size of above arrays */
1363 size_t peer_sigalgslen
;
1364 size_t peer_cert_sigalgslen
;
1365 /* Sigalg peer actually uses */
1366 const struct sigalg_lookup_st
*peer_sigalg
;
1368 * Set if corresponding CERT_PKEY can be used with current
1369 * SSL session: e.g. appropriate curve, signature algorithms etc.
1370 * If zero it can't be used at all.
1372 uint32_t *valid_flags
;
1374 * For servers the following masks are for the key and auth algorithms
1375 * that are supported by the certs below. For clients they are masks of
1376 * *disabled* algorithms based on the current session.
1381 * The following are used by the client to see if a cipher is allowed or
1382 * not. It contains the minimum and maximum version the client's using
1383 * based on what it knows so far.
1389 /* Connection binding to prevent renegotiation attacks */
1390 unsigned char previous_client_finished
[EVP_MAX_MD_SIZE
];
1391 size_t previous_client_finished_len
;
1392 unsigned char previous_server_finished
[EVP_MAX_MD_SIZE
];
1393 size_t previous_server_finished_len
;
1394 int send_connection_binding
;
1396 # ifndef OPENSSL_NO_NEXTPROTONEG
1398 * Set if we saw the Next Protocol Negotiation extension from our peer.
1404 * ALPN information (we are in the process of transitioning from NPN to
1409 * In a server these point to the selected ALPN protocol after the
1410 * ClientHello has been processed. In a client these contain the protocol
1411 * that the server selected once the ServerHello has been processed.
1413 unsigned char *alpn_selected
;
1414 size_t alpn_selected_len
;
1415 /* used by the server to know what options were proposed */
1416 unsigned char *alpn_proposed
;
1417 size_t alpn_proposed_len
;
1418 /* used by the client to know if it actually sent alpn */
1422 * This is set to true if we believe that this is a version of Safari
1423 * running on OS X 10.6 or newer. We wish to know this because Safari on
1424 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1426 char is_probably_safari
;
1429 * Track whether we did a key exchange this handshake or not, so
1430 * SSL_get_negotiated_group() knows whether to fall back to the
1431 * value in the SSL_SESSION.
1434 /* For clients: peer temporary key */
1435 /* The group_id for the key exchange key */
1441 struct dtls1_state_st
*d1
; /* DTLSv1 variables */
1442 /* callback that allows applications to peek at protocol messages */
1443 void (*msg_callback
) (int write_p
, int version
, int content_type
,
1444 const void *buf
, size_t len
, SSL
*ssl
, void *arg
);
1445 void *msg_callback_arg
;
1446 int hit
; /* reusing a previous session */
1447 X509_VERIFY_PARAM
*param
;
1448 /* Per connection DANE state */
1451 STACK_OF(SSL_CIPHER
) *peer_ciphers
;
1452 STACK_OF(SSL_CIPHER
) *cipher_list
;
1453 STACK_OF(SSL_CIPHER
) *cipher_list_by_id
;
1454 /* TLSv1.3 specific ciphersuites */
1455 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
;
1457 * These are the ones being used, the ones in SSL_SESSION are the ones to
1458 * be 'copied' into these ones
1462 * The TLS1.3 secrets.
1464 unsigned char early_secret
[EVP_MAX_MD_SIZE
];
1465 unsigned char handshake_secret
[EVP_MAX_MD_SIZE
];
1466 unsigned char master_secret
[EVP_MAX_MD_SIZE
];
1467 unsigned char resumption_master_secret
[EVP_MAX_MD_SIZE
];
1468 unsigned char client_finished_secret
[EVP_MAX_MD_SIZE
];
1469 unsigned char server_finished_secret
[EVP_MAX_MD_SIZE
];
1470 unsigned char server_finished_hash
[EVP_MAX_MD_SIZE
];
1471 unsigned char handshake_traffic_hash
[EVP_MAX_MD_SIZE
];
1472 unsigned char client_app_traffic_secret
[EVP_MAX_MD_SIZE
];
1473 unsigned char server_app_traffic_secret
[EVP_MAX_MD_SIZE
];
1474 unsigned char exporter_master_secret
[EVP_MAX_MD_SIZE
];
1475 unsigned char early_exporter_master_secret
[EVP_MAX_MD_SIZE
];
1479 /* This is used to hold the server certificate used */
1480 struct cert_st
/* CERT */ *cert
;
1483 * The hash of all messages prior to the CertificateVerify, and the length
1486 unsigned char cert_verify_hash
[EVP_MAX_MD_SIZE
];
1487 size_t cert_verify_hash_len
;
1489 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1490 enum {SSL_HRR_NONE
= 0, SSL_HRR_PENDING
, SSL_HRR_COMPLETE
}
1491 hello_retry_request
;
1494 * the session_id_context is used to ensure sessions are only reused in
1495 * the appropriate context
1497 size_t sid_ctx_length
;
1498 unsigned char sid_ctx
[SSL_MAX_SID_CTX_LENGTH
];
1499 /* This can also be in the session once a session is established */
1500 SSL_SESSION
*session
;
1501 /* TLSv1.3 PSK session */
1502 SSL_SESSION
*psksession
;
1503 unsigned char *psksession_id
;
1504 size_t psksession_id_len
;
1505 /* Default generate session ID callback. */
1506 GEN_SESSION_CB generate_session_id
;
1508 * The temporary TLSv1.3 session id. This isn't really a session id at all
1509 * but is a random value sent in the legacy session id field.
1511 unsigned char tmp_session_id
[SSL_MAX_SSL_SESSION_ID_LENGTH
];
1512 size_t tmp_session_id_len
;
1515 * 0 don't care about verify failure.
1516 * 1 fail if verify fails
1518 uint32_t verify_mode
;
1519 /* fail if callback returns 0 */
1520 int (*verify_callback
) (int ok
, X509_STORE_CTX
*ctx
);
1521 /* optional informational callback */
1522 void (*info_callback
) (const SSL
*ssl
, int type
, int val
);
1523 /* error bytes to be written */
1527 # ifndef OPENSSL_NO_PSK
1528 SSL_psk_client_cb_func psk_client_callback
;
1529 SSL_psk_server_cb_func psk_server_callback
;
1531 SSL_psk_find_session_cb_func psk_find_session_cb
;
1532 SSL_psk_use_session_cb_func psk_use_session_cb
;
1534 /* Verified chain of peer */
1535 STACK_OF(X509
) *verified_chain
;
1538 * What we put in certificate_authorities extension for TLS 1.3
1539 * (ClientHello and CertificateRequest) or just client cert requests for
1540 * earlier versions. If client_ca_names is populated then it is only used
1541 * for client cert requests, and in preference to ca_names.
1543 STACK_OF(X509_NAME
) *ca_names
;
1544 STACK_OF(X509_NAME
) *client_ca_names
;
1545 /* protocol behaviour */
1549 int min_proto_version
;
1550 int max_proto_version
;
1551 size_t max_cert_list
;
1554 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1555 * secret and SSLv3/TLS (<=1.2) rollback check
1559 * If we're using more than one pipeline how should we divide the data
1560 * up between the pipes?
1562 size_t split_send_fragment
;
1564 * Maximum amount of data to send in one fragment. actual record size can
1565 * be more than this due to padding and MAC overheads.
1567 size_t max_send_fragment
;
1568 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1569 size_t max_pipelines
;
1572 /* Built-in extension flags */
1573 uint8_t extflags
[TLSEXT_IDX_num_builtins
];
1574 /* TLS extension debug callback */
1575 void (*debug_cb
)(SSL
*s
, int client_server
, int type
,
1576 const unsigned char *data
, int len
, void *arg
);
1579 /* certificate status request info */
1580 /* Status type or -1 if no status type */
1582 /* Raw extension data, if seen */
1583 unsigned char *scts
;
1584 /* Length of raw extension data, if seen */
1586 /* Expect OCSP CertificateStatus message */
1587 int status_expected
;
1590 /* OCSP status request only */
1591 STACK_OF(OCSP_RESPID
) *ids
;
1592 X509_EXTENSIONS
*exts
;
1593 /* OCSP response received or to be sent */
1594 unsigned char *resp
;
1598 /* RFC4507 session ticket expected to be received or sent */
1599 int ticket_expected
;
1600 /* TLS 1.3 tickets requested by the application. */
1601 int extra_tickets_expected
;
1602 size_t ecpointformats_len
;
1604 unsigned char *ecpointformats
;
1606 size_t peer_ecpointformats_len
;
1608 unsigned char *peer_ecpointformats
;
1609 size_t supportedgroups_len
;
1611 uint16_t *supportedgroups
;
1613 size_t peer_supportedgroups_len
;
1615 uint16_t *peer_supportedgroups
;
1617 /* TLS Session Ticket extension override */
1618 TLS_SESSION_TICKET_EXT
*session_ticket
;
1619 /* TLS Session Ticket extension callback */
1620 tls_session_ticket_ext_cb_fn session_ticket_cb
;
1621 void *session_ticket_cb_arg
;
1622 /* TLS pre-shared secret session resumption */
1623 tls_session_secret_cb_fn session_secret_cb
;
1624 void *session_secret_cb_arg
;
1626 * For a client, this contains the list of supported protocols in wire
1629 unsigned char *alpn
;
1632 * Next protocol negotiation. For the client, this is the protocol that
1633 * we sent in NextProtocol and is set when handling ServerHello
1634 * extensions. For a server, this is the client's selected_protocol from
1635 * NextProtocol and is set when handling the NextProtocol message, before
1636 * the Finished message.
1641 /* The available PSK key exchange modes */
1644 /* Set to one if we have negotiated ETM */
1647 /* Are we expecting to receive early data? */
1649 /* Is the session suitable for early data? */
1652 /* May be sent by a server in HRR. Must be echoed back in ClientHello */
1653 unsigned char *tls13_cookie
;
1654 size_t tls13_cookie_len
;
1655 /* Have we received a cookie from the client? */
1659 * Maximum Fragment Length as per RFC 4366.
1660 * If this member contains one of the allowed values (1-4)
1661 * then we should include Maximum Fragment Length Negotiation
1662 * extension in Client Hello.
1663 * Please note that value of this member does not have direct
1664 * effect. The actual (binding) value is stored in SSL_SESSION,
1665 * as this extension is optional on server side.
1667 uint8_t max_fragment_len_mode
;
1670 * On the client side the number of ticket identities we sent in the
1671 * ClientHello. On the server side the identity of the ticket we
1676 /* This is the list of algorithms the peer supports that we also support */
1677 int compress_certificate_from_peer
[TLSEXT_comp_cert_limit
];
1678 /* indicate that we sent the extension, so we'll accept it */
1679 int compress_certificate_sent
;
1681 uint8_t client_cert_type
;
1682 uint8_t client_cert_type_ctos
;
1683 uint8_t server_cert_type
;
1684 uint8_t server_cert_type_ctos
;
1688 * Parsed form of the ClientHello, kept around across client_hello_cb
1691 CLIENTHELLO_MSG
*clienthello
;
1694 * no further mod of servername
1695 * 0 : call the servername extension callback.
1696 * 1 : prepare 2, allow last ack just after in server callback.
1697 * 2 : don't call servername callback, no ack in server hello
1699 int servername_done
;
1700 # ifndef OPENSSL_NO_CT
1702 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1703 * If they are not, the connection should be aborted.
1705 ssl_ct_validation_cb ct_validation_callback
;
1706 /* User-supplied argument that is passed to the ct_validation_callback */
1707 void *ct_validation_callback_arg
;
1709 * Consolidated stack of SCTs from all sources.
1710 * Lazily populated by CT_get_peer_scts(SSL*)
1712 STACK_OF(SCT
) *scts
;
1713 /* Have we attempted to find/parse SCTs yet? */
1716 SSL_CTX
*session_ctx
; /* initial ctx, used to store sessions */
1717 # ifndef OPENSSL_NO_SRTP
1719 STACK_OF(SRTP_PROTECTION_PROFILE
) *srtp_profiles
;
1720 /* What's been chosen */
1721 SRTP_PROTECTION_PROFILE
*srtp_profile
;
1724 * 1 if we are renegotiating.
1725 * 2 if we are a server and are inside a handshake
1726 * (i.e. not just sending a HelloRequest)
1729 /* If sending a KeyUpdate is pending */
1731 /* Post-handshake authentication state */
1732 SSL_PHA_STATE post_handshake_auth
;
1734 uint8_t* pha_context
;
1735 size_t pha_context_len
;
1737 EVP_MD_CTX
*pha_dgst
; /* this is just the digest through ClientFinished */
1739 # ifndef OPENSSL_NO_SRP
1740 /* ctx for SRP authentication */
1744 * Callback for disabling session caching and ticket support on a session
1745 * basis, depending on the chosen cipher.
1747 int (*not_resumable_session_cb
) (SSL
*ssl
, int is_forward_secure
);
1749 /* Record layer data */
1750 RECORD_LAYER rlayer
;
1752 /* Default password callback. */
1753 pem_password_cb
*default_passwd_callback
;
1754 /* Default password callback user data. */
1755 void *default_passwd_callback_userdata
;
1756 /* Async Job info */
1758 ASYNC_WAIT_CTX
*waitctx
;
1762 * The maximum number of bytes advertised in session tickets that can be
1763 * sent as early data.
1765 uint32_t max_early_data
;
1767 * The maximum number of bytes of early data that a server will tolerate
1768 * (which should be at least as much as max_early_data).
1770 uint32_t recv_max_early_data
;
1773 * The number of bytes of early data received so far. If we accepted early
1774 * data then this is a count of the plaintext bytes. If we rejected it then
1775 * this is a count of the ciphertext bytes.
1777 uint32_t early_data_count
;
1779 /* The number of TLS1.3 tickets to automatically send */
1781 /* The number of TLS1.3 tickets actually sent so far */
1782 size_t sent_tickets
;
1783 /* The next nonce value to use when we send a ticket on this connection */
1784 uint64_t next_ticket_nonce
;
1786 /* Callback to determine if early_data is acceptable or not */
1787 SSL_allow_early_data_cb_fn allow_early_data_cb
;
1788 void *allow_early_data_cb_data
;
1790 /* Callback for SSL async handling */
1791 SSL_async_callback_fn async_cb
;
1795 * Signature algorithms shared by client and server: cached because these
1796 * are used most often.
1798 const struct sigalg_lookup_st
**shared_sigalgs
;
1799 size_t shared_sigalgslen
;
1801 #ifndef OPENSSL_NO_COMP_ALG
1802 /* certificate compression preferences */
1803 int cert_comp_prefs
[TLSEXT_comp_cert_limit
];
1806 /* Certificate Type stuff - for RPK vs X.509 */
1807 unsigned char *client_cert_type
;
1808 size_t client_cert_type_len
;
1809 unsigned char *server_cert_type
;
1810 size_t server_cert_type_len
;
1813 # define SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, c) \
1814 ((ssl) == NULL ? NULL \
1815 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1816 ? (c SSL_CONNECTION *)(ssl) \
1818 # define SSL_CONNECTION_NO_CONST
1819 # define SSL_CONNECTION_FROM_SSL_ONLY(ssl) \
1820 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1821 # define SSL_CONNECTION_FROM_CONST_SSL_ONLY(ssl) \
1822 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1823 # define SSL_CONNECTION_GET_CTX(sc) ((sc)->ssl.ctx)
1824 # define SSL_CONNECTION_GET_SSL(sc) (&(sc)->ssl)
1825 # ifndef OPENSSL_NO_QUIC
1826 # include "quic/quic_local.h"
1827 # define SSL_CONNECTION_FROM_SSL_int(ssl, c) \
1828 ((ssl) == NULL ? NULL \
1829 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1830 ? (c SSL_CONNECTION *)(ssl) \
1831 : ((ssl)->type == SSL_TYPE_QUIC_CONNECTION \
1832 ? (c SSL_CONNECTION *)((c QUIC_CONNECTION *)(ssl))->tls \
1834 # define SSL_CONNECTION_FROM_SSL(ssl) \
1835 SSL_CONNECTION_FROM_SSL_int(ssl, SSL_CONNECTION_NO_CONST)
1836 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1837 SSL_CONNECTION_FROM_SSL_int(ssl, const)
1839 # define SSL_CONNECTION_FROM_SSL(ssl) \
1840 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1841 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1842 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1846 * Structure containing table entry of values associated with the signature
1847 * algorithms (signature scheme) extension
1849 typedef struct sigalg_lookup_st
{
1850 /* TLS 1.3 signature scheme name */
1852 /* Raw value used in extension */
1854 /* NID of hash algorithm or NID_undef if no hash */
1856 /* Index of hash algorithm or -1 if no hash algorithm */
1858 /* NID of signature algorithm */
1860 /* Index of signature algorithm */
1862 /* Combined hash and signature NID, if any */
1864 /* Required public key curve (ECDSA only) */
1866 /* Whether this signature algorithm is actually available for use */
1870 /* DTLS structures */
1872 # ifndef OPENSSL_NO_SCTP
1873 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1876 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1877 # define DTLS1_MAX_MTU_OVERHEAD 48
1880 * Flag used in message reuse to indicate the buffer contains the record
1881 * header as well as the handshake message header.
1883 # define DTLS1_SKIP_RECORD_HEADER 2
1885 struct dtls1_retransmit_state
{
1886 const OSSL_RECORD_METHOD
*wrlmethod
;
1887 OSSL_RECORD_LAYER
*wrl
;
1890 struct hm_header_st
{
1896 unsigned int is_ccs
;
1897 struct dtls1_retransmit_state saved_retransmit_state
;
1900 typedef struct hm_fragment_st
{
1901 struct hm_header_st msg_header
;
1902 unsigned char *fragment
;
1903 unsigned char *reassembly
;
1906 typedef struct pqueue_st pqueue
;
1907 typedef struct pitem_st pitem
;
1910 unsigned char priority
[8]; /* 64-bit value in big-endian encoding */
1915 typedef struct pitem_st
*piterator
;
1917 pitem
*pitem_new(unsigned char *prio64be
, void *data
);
1918 void pitem_free(pitem
*item
);
1919 pqueue
*pqueue_new(void);
1920 void pqueue_free(pqueue
*pq
);
1921 pitem
*pqueue_insert(pqueue
*pq
, pitem
*item
);
1922 pitem
*pqueue_peek(pqueue
*pq
);
1923 pitem
*pqueue_pop(pqueue
*pq
);
1924 pitem
*pqueue_find(pqueue
*pq
, unsigned char *prio64be
);
1925 pitem
*pqueue_iterator(pqueue
*pq
);
1926 pitem
*pqueue_next(piterator
*iter
);
1927 size_t pqueue_size(pqueue
*pq
);
1929 typedef struct dtls1_state_st
{
1930 unsigned char cookie
[DTLS1_COOKIE_LENGTH
];
1932 unsigned int cookie_verified
;
1933 /* handshake message numbers */
1934 unsigned short handshake_write_seq
;
1935 unsigned short next_handshake_write_seq
;
1936 unsigned short handshake_read_seq
;
1937 /* Buffered handshake messages */
1938 pqueue
*buffered_messages
;
1939 /* Buffered (sent) handshake records */
1940 pqueue
*sent_messages
;
1941 size_t link_mtu
; /* max on-the-wire DTLS packet size */
1942 size_t mtu
; /* max DTLS packet size */
1943 struct hm_header_st w_msg_hdr
;
1944 struct hm_header_st r_msg_hdr
;
1945 /* Number of alerts received so far */
1946 unsigned int timeout_num_alerts
;
1948 * Indicates when the last handshake msg sent will timeout
1950 OSSL_TIME next_timeout
;
1951 /* Timeout duration */
1952 unsigned int timeout_duration_us
;
1954 unsigned int retransmitting
;
1955 # ifndef OPENSSL_NO_SCTP
1956 int shutdown_received
;
1959 DTLS_timer_cb timer_cb
;
1964 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1966 # define EXPLICIT_PRIME_CURVE_TYPE 1
1967 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1968 # define NAMED_CURVE_TYPE 3
1970 # ifndef OPENSSL_NO_COMP_ALG
1971 struct ossl_comp_cert_st
{
1972 unsigned char *data
;
1975 CRYPTO_REF_COUNT references
;
1978 typedef struct ossl_comp_cert_st OSSL_COMP_CERT
;
1980 void OSSL_COMP_CERT_free(OSSL_COMP_CERT
*c
);
1981 int OSSL_COMP_CERT_up_ref(OSSL_COMP_CERT
*c
);
1984 struct cert_pkey_st
{
1986 EVP_PKEY
*privatekey
;
1987 /* Chain for this certificate */
1988 STACK_OF(X509
) *chain
;
1990 * serverinfo data for this certificate. The data is in TLS Extension
1991 * wire format, specifically it's a series of records like:
1992 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1994 * uint8_t data[length];
1996 unsigned char *serverinfo
;
1997 size_t serverinfo_length
;
1998 # ifndef OPENSSL_NO_COMP_ALG
1999 /* Compressed certificate data - index 0 is unused */
2000 OSSL_COMP_CERT
*comp_cert
[TLSEXT_comp_cert_limit
];
2004 /* Retrieve Suite B flags */
2005 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
2006 /* Uses to check strict mode: suite B modes are always strict */
2007 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
2008 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
2011 ENDPOINT_CLIENT
= 0,
2018 unsigned short ext_type
;
2020 /* The context which this extension applies to */
2021 unsigned int context
;
2023 * Per-connection flags relating to this extension type: not used if
2024 * part of an SSL_CTX structure.
2027 SSL_custom_ext_add_cb_ex add_cb
;
2028 SSL_custom_ext_free_cb_ex free_cb
;
2030 SSL_custom_ext_parse_cb_ex parse_cb
;
2032 } custom_ext_method
;
2034 /* ext_flags values */
2037 * Indicates an extension has been received. Used to check for unsolicited or
2038 * duplicate extensions.
2040 # define SSL_EXT_FLAG_RECEIVED 0x1
2042 * Indicates an extension has been sent: used to enable sending of
2043 * corresponding ServerHello extension.
2045 # define SSL_EXT_FLAG_SENT 0x2
2048 custom_ext_method
*meths
;
2050 } custom_ext_methods
;
2052 typedef struct cert_st
{
2053 /* Current active set */
2055 * ALWAYS points to an element of the pkeys array
2056 * Probably it would make more sense to store
2057 * an index, not a pointer.
2062 DH
*(*dh_tmp_cb
) (SSL
*ssl
, int is_export
, int keysize
);
2064 /* Flags related to certificates */
2065 uint32_t cert_flags
;
2067 size_t ssl_pkey_num
;
2068 /* Custom certificate types sent in certificate request message. */
2072 * supported signature algorithms. When set on a client this is sent in
2073 * the client hello as the supported signature algorithms extension. For
2074 * servers it represents the signature algorithms we are willing to use.
2076 uint16_t *conf_sigalgs
;
2077 /* Size of above array */
2078 size_t conf_sigalgslen
;
2080 * Client authentication signature algorithms, if not set then uses
2081 * conf_sigalgs. On servers these will be the signature algorithms sent
2082 * to the client in a certificate request for TLS 1.2. On a client this
2083 * represents the signature algorithms we are willing to use for client
2086 uint16_t *client_sigalgs
;
2087 /* Size of above array */
2088 size_t client_sigalgslen
;
2090 * Certificate setup callback: if set is called whenever a certificate
2091 * may be required (client or server). the callback can then examine any
2092 * appropriate parameters and setup any certificates required. This
2093 * allows advanced applications to select certificates on the fly: for
2094 * example based on supported signature algorithms or curves.
2096 int (*cert_cb
) (SSL
*ssl
, void *arg
);
2099 * Optional X509_STORE for chain building or certificate validation If
2100 * NULL the parent SSL_CTX store is used instead.
2102 X509_STORE
*chain_store
;
2103 X509_STORE
*verify_store
;
2104 /* Custom extensions */
2105 custom_ext_methods custext
;
2106 /* Security callback */
2107 int (*sec_cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
2108 void *other
, void *ex
);
2109 /* Security level */
2112 # ifndef OPENSSL_NO_PSK
2113 /* If not NULL psk identity hint to use for servers */
2114 char *psk_identity_hint
;
2116 CRYPTO_REF_COUNT references
; /* >1 only if SSL_copy_session_id is used */
2119 # define FP_ICC (int (*)(const void *,const void *))
2122 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
2123 * of a mess of functions, but hell, think of it as an opaque structure :-)
2125 typedef struct ssl3_enc_method
{
2126 int (*setup_key_block
) (SSL_CONNECTION
*);
2127 int (*generate_master_secret
) (SSL_CONNECTION
*, unsigned char *,
2128 unsigned char *, size_t, size_t *);
2129 int (*change_cipher_state
) (SSL_CONNECTION
*, int);
2130 size_t (*final_finish_mac
) (SSL_CONNECTION
*, const char *, size_t,
2132 const char *client_finished_label
;
2133 size_t client_finished_label_len
;
2134 const char *server_finished_label
;
2135 size_t server_finished_label_len
;
2136 int (*alert_value
) (int);
2137 int (*export_keying_material
) (SSL_CONNECTION
*, unsigned char *, size_t,
2138 const char *, size_t,
2139 const unsigned char *, size_t,
2141 /* Various flags indicating protocol version requirements */
2143 /* Set the handshake header */
2144 int (*set_handshake_header
) (SSL_CONNECTION
*s
, WPACKET
*pkt
, int type
);
2145 /* Close construction of the handshake message */
2146 int (*close_construct_packet
) (SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2147 /* Write out handshake message */
2148 int (*do_write
) (SSL_CONNECTION
*s
);
2151 # define ssl_set_handshake_header(s, pkt, htype) \
2152 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
2153 # define ssl_close_construct_packet(s, pkt, htype) \
2154 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
2155 # define ssl_do_write(s) SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->do_write(s)
2157 /* Values for enc_flags */
2159 /* Uses explicit IV for CBC mode */
2160 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
2161 /* Uses signature algorithms extension */
2162 # define SSL_ENC_FLAG_SIGALGS 0x2
2163 /* Uses SHA256 default PRF */
2164 # define SSL_ENC_FLAG_SHA256_PRF 0x4
2166 # define SSL_ENC_FLAG_DTLS 0x8
2168 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
2169 * apply to others in future.
2171 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
2173 typedef enum downgrade_en
{
2180 * Dummy status type for the status_type extension. Indicates no status type
2183 #define TLSEXT_STATUSTYPE_nothing -1
2185 /* Sigalgs values */
2186 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
2187 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
2188 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
2189 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303
2190 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203
2191 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804
2192 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805
2193 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806
2194 #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809
2195 #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a
2196 #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b
2197 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
2198 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
2199 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
2200 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
2201 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
2202 #define TLSEXT_SIGALG_dsa_sha256 0x0402
2203 #define TLSEXT_SIGALG_dsa_sha384 0x0502
2204 #define TLSEXT_SIGALG_dsa_sha512 0x0602
2205 #define TLSEXT_SIGALG_dsa_sha224 0x0302
2206 #define TLSEXT_SIGALG_dsa_sha1 0x0202
2207 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840
2208 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841
2209 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
2210 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
2211 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
2213 #define TLSEXT_SIGALG_ed25519 0x0807
2214 #define TLSEXT_SIGALG_ed448 0x0808
2215 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256 0x081a
2216 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384 0x081b
2217 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512 0x081c
2219 /* Known PSK key exchange modes */
2220 #define TLSEXT_KEX_MODE_KE 0x00
2221 #define TLSEXT_KEX_MODE_KE_DHE 0x01
2224 * Internal representations of key exchange modes
2226 #define TLSEXT_KEX_MODE_FLAG_NONE 0
2227 #define TLSEXT_KEX_MODE_FLAG_KE 1
2228 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
2230 #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \
2231 s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
2233 /* A dummy signature value not valid for TLSv1.2 signature algs */
2234 #define TLSEXT_signature_rsa_pss 0x0101
2236 /* TLSv1.3 downgrade protection sentinel values */
2237 extern const unsigned char tls11downgrade
[8];
2238 extern const unsigned char tls12downgrade
[8];
2240 extern const SSL3_ENC_METHOD ssl3_undef_enc_method
;
2242 __owur
const SSL_METHOD
*sslv3_method(void);
2243 __owur
const SSL_METHOD
*sslv3_server_method(void);
2244 __owur
const SSL_METHOD
*sslv3_client_method(void);
2245 __owur
const SSL_METHOD
*tlsv1_method(void);
2246 __owur
const SSL_METHOD
*tlsv1_server_method(void);
2247 __owur
const SSL_METHOD
*tlsv1_client_method(void);
2248 __owur
const SSL_METHOD
*tlsv1_1_method(void);
2249 __owur
const SSL_METHOD
*tlsv1_1_server_method(void);
2250 __owur
const SSL_METHOD
*tlsv1_1_client_method(void);
2251 __owur
const SSL_METHOD
*tlsv1_2_method(void);
2252 __owur
const SSL_METHOD
*tlsv1_2_server_method(void);
2253 __owur
const SSL_METHOD
*tlsv1_2_client_method(void);
2254 __owur
const SSL_METHOD
*tlsv1_3_method(void);
2255 __owur
const SSL_METHOD
*tlsv1_3_server_method(void);
2256 __owur
const SSL_METHOD
*tlsv1_3_client_method(void);
2257 __owur
const SSL_METHOD
*dtlsv1_method(void);
2258 __owur
const SSL_METHOD
*dtlsv1_server_method(void);
2259 __owur
const SSL_METHOD
*dtlsv1_client_method(void);
2260 __owur
const SSL_METHOD
*dtls_bad_ver_client_method(void);
2261 __owur
const SSL_METHOD
*dtlsv1_2_method(void);
2262 __owur
const SSL_METHOD
*dtlsv1_2_server_method(void);
2263 __owur
const SSL_METHOD
*dtlsv1_2_client_method(void);
2265 extern const SSL3_ENC_METHOD TLSv1_enc_data
;
2266 extern const SSL3_ENC_METHOD TLSv1_1_enc_data
;
2267 extern const SSL3_ENC_METHOD TLSv1_2_enc_data
;
2268 extern const SSL3_ENC_METHOD TLSv1_3_enc_data
;
2269 extern const SSL3_ENC_METHOD SSLv3_enc_data
;
2270 extern const SSL3_ENC_METHOD DTLSv1_enc_data
;
2271 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data
;
2274 * Flags for SSL methods
2276 # define SSL_METHOD_NO_FIPS (1U<<0)
2277 # define SSL_METHOD_NO_SUITEB (1U<<1)
2279 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
2280 s_connect, enc_data) \
2281 const SSL_METHOD *func_name(void) \
2283 static const SSL_METHOD func_name##_data= { \
2287 ossl_ssl_connection_new, \
2288 ossl_ssl_connection_free, \
2289 ossl_ssl_connection_reset, \
2300 ssl3_renegotiate_check, \
2303 ssl3_dispatch_alert, \
2306 ssl3_get_cipher_by_char, \
2307 ssl3_put_cipher_by_char, \
2311 tls1_default_timeout, \
2313 ssl_undefined_void_function, \
2314 ssl3_callback_ctrl, \
2315 ssl3_ctx_callback_ctrl, \
2317 return &func_name##_data; \
2320 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
2321 const SSL_METHOD *func_name(void) \
2323 static const SSL_METHOD func_name##_data= { \
2325 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
2327 ossl_ssl_connection_new, \
2328 ossl_ssl_connection_free, \
2329 ossl_ssl_connection_reset, \
2340 ssl3_renegotiate_check, \
2343 ssl3_dispatch_alert, \
2346 ssl3_get_cipher_by_char, \
2347 ssl3_put_cipher_by_char, \
2351 ssl3_default_timeout, \
2353 ssl_undefined_void_function, \
2354 ssl3_callback_ctrl, \
2355 ssl3_ctx_callback_ctrl, \
2357 return &func_name##_data; \
2360 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
2361 s_connect, enc_data) \
2362 const SSL_METHOD *func_name(void) \
2364 static const SSL_METHOD func_name##_data= { \
2368 ossl_ssl_connection_new, \
2369 ossl_ssl_connection_free, \
2370 ossl_ssl_connection_reset, \
2381 ssl3_renegotiate_check, \
2383 dtls1_write_app_data_bytes, \
2384 dtls1_dispatch_alert, \
2387 ssl3_get_cipher_by_char, \
2388 ssl3_put_cipher_by_char, \
2392 dtls1_default_timeout, \
2394 ssl_undefined_void_function, \
2395 ssl3_callback_ctrl, \
2396 ssl3_ctx_callback_ctrl, \
2398 return &func_name##_data; \
2401 struct openssl_ssl_test_functions
{
2402 int (*p_ssl_init_wbio_buffer
) (SSL_CONNECTION
*s
);
2405 const char *ssl_protocol_to_string(int version
);
2407 static ossl_inline
int tls12_rpk_and_privkey(const SSL_CONNECTION
*sc
, int idx
)
2410 * This is to check for special cases when using RPK with just
2411 * a private key, and NO CERTIFICATE
2413 return ((sc
->server
&& sc
->ext
.server_cert_type
== TLSEXT_cert_type_rpk
)
2414 || (!sc
->server
&& sc
->ext
.client_cert_type
== TLSEXT_cert_type_rpk
))
2415 && sc
->cert
->pkeys
[idx
].privatekey
!= NULL
2416 && sc
->cert
->pkeys
[idx
].x509
== NULL
;
2419 static ossl_inline
int ssl_has_cert_type(const SSL_CONNECTION
*sc
, unsigned char ct
)
2425 ptr
= sc
->server_cert_type
;
2426 len
= sc
->server_cert_type_len
;
2428 ptr
= sc
->client_cert_type
;
2429 len
= sc
->client_cert_type_len
;
2435 return memchr(ptr
, ct
, len
) != NULL
;
2438 /* Returns true if certificate and private key for 'idx' are present */
2439 static ossl_inline
int ssl_has_cert(const SSL_CONNECTION
*s
, int idx
)
2441 if (idx
< 0 || idx
>= (int)s
->ssl_pkey_num
)
2444 /* If RPK is enabled for this SSL... only require private key */
2445 if (ssl_has_cert_type(s
, TLSEXT_cert_type_rpk
))
2446 return s
->cert
->pkeys
[idx
].privatekey
!= NULL
;
2448 return s
->cert
->pkeys
[idx
].x509
!= NULL
2449 && s
->cert
->pkeys
[idx
].privatekey
!= NULL
;
2452 static ossl_inline
void tls1_get_peer_groups(SSL_CONNECTION
*s
,
2453 const uint16_t **pgroups
,
2456 *pgroups
= s
->ext
.peer_supportedgroups
;
2457 *pgroupslen
= s
->ext
.peer_supportedgroups_len
;
2460 # ifndef OPENSSL_UNIT_TEST
2462 __owur
int ossl_ssl_init(SSL
*ssl
, SSL_CTX
*ctx
, const SSL_METHOD
*method
,
2464 __owur SSL
*ossl_ssl_connection_new_int(SSL_CTX
*ctx
, const SSL_METHOD
*method
);
2465 __owur SSL
*ossl_ssl_connection_new(SSL_CTX
*ctx
);
2466 void ossl_ssl_connection_free(SSL
*ssl
);
2467 __owur
int ossl_ssl_connection_reset(SSL
*ssl
);
2469 __owur
int ssl_read_internal(SSL
*s
, void *buf
, size_t num
, size_t *readbytes
);
2470 __owur
int ssl_write_internal(SSL
*s
, const void *buf
, size_t num
,
2471 uint64_t flags
, size_t *written
);
2472 int ssl_clear_bad_session(SSL_CONNECTION
*s
);
2473 __owur CERT
*ssl_cert_new(size_t ssl_pkey_num
);
2474 __owur CERT
*ssl_cert_dup(CERT
*cert
);
2475 void ssl_cert_clear_certs(CERT
*c
);
2476 void ssl_cert_free(CERT
*c
);
2477 __owur
int ssl_generate_session_id(SSL_CONNECTION
*s
, SSL_SESSION
*ss
);
2478 __owur
int ssl_get_new_session(SSL_CONNECTION
*s
, int session
);
2479 __owur SSL_SESSION
*lookup_sess_in_cache(SSL_CONNECTION
*s
,
2480 const unsigned char *sess_id
,
2481 size_t sess_id_len
);
2482 __owur
int ssl_get_prev_session(SSL_CONNECTION
*s
, CLIENTHELLO_MSG
*hello
);
2483 __owur SSL_SESSION
*ssl_session_dup(const SSL_SESSION
*src
, int ticket
);
2484 __owur
int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
);
2485 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
2486 __owur
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
2487 const SSL_CIPHER
*const *bp
);
2488 __owur
STACK_OF(SSL_CIPHER
) *ssl_create_cipher_list(SSL_CTX
*ctx
,
2489 STACK_OF(SSL_CIPHER
) *tls13_ciphersuites
,
2490 STACK_OF(SSL_CIPHER
) **cipher_list
,
2491 STACK_OF(SSL_CIPHER
) **cipher_list_by_id
,
2492 const char *rule_str
,
2494 __owur
int ssl_cache_cipherlist(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
2496 __owur
int ossl_bytes_to_cipher_list(SSL_CONNECTION
*s
, PACKET
*cipher_suites
,
2497 STACK_OF(SSL_CIPHER
) **skp
,
2498 STACK_OF(SSL_CIPHER
) **scsvs
, int sslv2format
,
2500 void ssl_update_cache(SSL_CONNECTION
*s
, int mode
);
2501 __owur
int ssl_cipher_get_evp_cipher(SSL_CTX
*ctx
, const SSL_CIPHER
*sslc
,
2502 const EVP_CIPHER
**enc
);
2503 __owur
int ssl_cipher_get_evp(SSL_CTX
*ctxc
, const SSL_SESSION
*s
,
2504 const EVP_CIPHER
**enc
, const EVP_MD
**md
,
2505 int *mac_pkey_type
, size_t *mac_secret_size
,
2506 SSL_COMP
**comp
, int use_etm
);
2507 __owur
int ssl_cipher_get_overhead(const SSL_CIPHER
*c
, size_t *mac_overhead
,
2508 size_t *int_overhead
, size_t *blocksize
,
2509 size_t *ext_overhead
);
2510 __owur
int ssl_cert_is_disabled(SSL_CTX
*ctx
, size_t idx
);
2511 __owur
const SSL_CIPHER
*ssl_get_cipher_by_char(SSL_CONNECTION
*ssl
,
2512 const unsigned char *ptr
,
2514 __owur
int ssl_cert_set0_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
,
2515 STACK_OF(X509
) *chain
);
2516 __owur
int ssl_cert_set1_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
,
2517 STACK_OF(X509
) *chain
);
2518 __owur
int ssl_cert_add0_chain_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
);
2519 __owur
int ssl_cert_add1_chain_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
);
2520 __owur
int ssl_cert_select_current(CERT
*c
, X509
*x
);
2521 __owur
int ssl_cert_set_current(CERT
*c
, long arg
);
2522 void ssl_cert_set_cert_cb(CERT
*c
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
);
2524 __owur
int ssl_verify_cert_chain(SSL_CONNECTION
*s
, STACK_OF(X509
) *sk
);
2525 __owur
int ssl_verify_rpk(SSL_CONNECTION
*s
, EVP_PKEY
*rpk
);
2526 __owur
int ssl_build_cert_chain(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, int flags
);
2527 __owur
int ssl_cert_set_cert_store(CERT
*c
, X509_STORE
*store
, int chain
,
2529 __owur
int ssl_cert_get_cert_store(CERT
*c
, X509_STORE
**pstore
, int chain
);
2531 __owur
int ssl_security(const SSL_CONNECTION
*s
, int op
, int bits
, int nid
,
2533 __owur
int ssl_ctx_security(const SSL_CTX
*ctx
, int op
, int bits
, int nid
,
2535 int ssl_get_security_level_bits(const SSL
*s
, const SSL_CTX
*ctx
, int *levelp
);
2537 __owur
int ssl_cert_lookup_by_nid(int nid
, size_t *pidx
, SSL_CTX
*ctx
);
2538 __owur
const SSL_CERT_LOOKUP
*ssl_cert_lookup_by_pkey(const EVP_PKEY
*pk
,
2541 __owur
const SSL_CERT_LOOKUP
*ssl_cert_lookup_by_idx(size_t idx
, SSL_CTX
*ctx
);
2543 int ssl_undefined_function(SSL
*s
);
2544 __owur
int ssl_undefined_void_function(void);
2545 __owur
int ssl_undefined_const_function(const SSL
*s
);
2546 __owur
int ssl_get_server_cert_serverinfo(SSL_CONNECTION
*s
,
2547 const unsigned char **serverinfo
,
2548 size_t *serverinfo_length
);
2549 void ssl_set_masks(SSL_CONNECTION
*s
);
2550 __owur
STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL_CONNECTION
*sc
);
2551 __owur
int ssl_x509err2alert(int type
);
2552 void ssl_sort_cipher_list(void);
2553 int ssl_load_ciphers(SSL_CTX
*ctx
);
2554 __owur
int ssl_setup_sigalgs(SSL_CTX
*ctx
);
2555 int ssl_load_groups(SSL_CTX
*ctx
);
2556 int ssl_load_sigalgs(SSL_CTX
*ctx
);
2557 __owur
int ssl_fill_hello_random(SSL_CONNECTION
*s
, int server
,
2558 unsigned char *field
, size_t len
,
2560 __owur
int ssl_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *pms
,
2561 size_t pmslen
, int free_pms
);
2562 __owur EVP_PKEY
*ssl_generate_pkey(SSL_CONNECTION
*s
, EVP_PKEY
*pm
);
2563 __owur
int ssl_gensecret(SSL_CONNECTION
*s
, unsigned char *pms
, size_t pmslen
);
2564 __owur
int ssl_derive(SSL_CONNECTION
*s
, EVP_PKEY
*privkey
, EVP_PKEY
*pubkey
,
2566 __owur
int ssl_decapsulate(SSL_CONNECTION
*s
, EVP_PKEY
*privkey
,
2567 const unsigned char *ct
, size_t ctlen
,
2569 __owur
int ssl_encapsulate(SSL_CONNECTION
*s
, EVP_PKEY
*pubkey
,
2570 unsigned char **ctp
, size_t *ctlenp
,
2572 __owur EVP_PKEY
*ssl_dh_to_pkey(DH
*dh
);
2573 __owur
int ssl_set_tmp_ecdh_groups(uint16_t **pext
, size_t *pextlen
,
2575 __owur
unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION
*sc
);
2576 __owur
unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION
*sc
);
2578 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_id(uint32_t id
);
2579 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_std_name(const char *stdname
);
2580 __owur
const SSL_CIPHER
*ssl3_get_cipher_by_char(const unsigned char *p
);
2581 __owur
int ssl3_put_cipher_by_char(const SSL_CIPHER
*c
, WPACKET
*pkt
,
2583 int ssl3_init_finished_mac(SSL_CONNECTION
*s
);
2584 __owur
int ssl3_setup_key_block(SSL_CONNECTION
*s
);
2585 __owur
int ssl3_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2586 void ssl3_cleanup_key_block(SSL_CONNECTION
*s
);
2587 __owur
int ssl3_do_write(SSL_CONNECTION
*s
, uint8_t type
);
2588 int ssl3_send_alert(SSL_CONNECTION
*s
, int level
, int desc
);
2589 __owur
int ssl3_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2590 unsigned char *p
, size_t len
,
2591 size_t *secret_size
);
2592 __owur
int ssl3_get_req_cert_type(SSL_CONNECTION
*s
, WPACKET
*pkt
);
2593 __owur
int ssl3_num_ciphers(void);
2594 __owur
const SSL_CIPHER
*ssl3_get_cipher(unsigned int u
);
2595 int ssl3_renegotiate(SSL
*ssl
);
2596 int ssl3_renegotiate_check(SSL
*ssl
, int initok
);
2597 void ssl3_digest_master_key_set_params(const SSL_SESSION
*session
,
2598 OSSL_PARAM params
[]);
2599 __owur
int ssl3_dispatch_alert(SSL
*s
);
2600 __owur
size_t ssl3_final_finish_mac(SSL_CONNECTION
*s
, const char *sender
,
2601 size_t slen
, unsigned char *p
);
2602 __owur
int ssl3_finish_mac(SSL_CONNECTION
*s
, const unsigned char *buf
,
2604 void ssl3_free_digest_list(SSL_CONNECTION
*s
);
2605 __owur
unsigned long ssl3_output_cert_chain(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2606 CERT_PKEY
*cpk
, int for_comp
);
2607 __owur
const SSL_CIPHER
*ssl3_choose_cipher(SSL_CONNECTION
*s
,
2608 STACK_OF(SSL_CIPHER
) *clnt
,
2609 STACK_OF(SSL_CIPHER
) *srvr
);
2610 __owur
int ssl3_digest_cached_records(SSL_CONNECTION
*s
, int keep
);
2611 __owur
int ssl3_new(SSL
*s
);
2612 void ssl3_free(SSL
*s
);
2613 __owur
int ssl3_read(SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
2614 __owur
int ssl3_peek(SSL
*s
, void *buf
, size_t len
, size_t *readbytes
);
2615 __owur
int ssl3_write(SSL
*s
, const void *buf
, size_t len
, size_t *written
);
2616 __owur
int ssl3_shutdown(SSL
*s
);
2617 int ssl3_clear(SSL
*s
);
2618 __owur
long ssl3_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
2619 __owur
long ssl3_ctx_ctrl(SSL_CTX
*s
, int cmd
, long larg
, void *parg
);
2620 __owur
long ssl3_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void));
2621 __owur
long ssl3_ctx_callback_ctrl(SSL_CTX
*s
, int cmd
, void (*fp
) (void));
2623 __owur
int ssl3_do_change_cipher_spec(SSL_CONNECTION
*s
);
2624 __owur OSSL_TIME
ssl3_default_timeout(void);
2626 __owur
int ssl3_set_handshake_header(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2628 __owur
int tls_close_construct_packet(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2629 __owur
int tls_setup_handshake(SSL_CONNECTION
*s
);
2630 __owur
int dtls1_set_handshake_header(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2631 __owur
int dtls1_close_construct_packet(SSL_CONNECTION
*s
, WPACKET
*pkt
, int htype
);
2632 __owur
int ssl3_handshake_write(SSL_CONNECTION
*s
);
2634 __owur
int ssl_allow_compression(SSL_CONNECTION
*s
);
2636 __owur
int ssl_version_cmp(const SSL_CONNECTION
*s
, int versiona
, int versionb
);
2637 __owur
int ssl_version_supported(const SSL_CONNECTION
*s
, int version
,
2638 const SSL_METHOD
**meth
);
2640 __owur
int ssl_set_client_hello_version(SSL_CONNECTION
*s
);
2641 __owur
int ssl_check_version_downgrade(SSL_CONNECTION
*s
);
2642 __owur
int ssl_set_version_bound(int method_version
, int version
, int *bound
);
2643 __owur
int ssl_choose_server_version(SSL_CONNECTION
*s
, CLIENTHELLO_MSG
*hello
,
2645 __owur
int ssl_choose_client_version(SSL_CONNECTION
*s
, int version
,
2646 RAW_EXTENSION
*extensions
);
2647 __owur
int ssl_get_min_max_version(const SSL_CONNECTION
*s
, int *min_version
,
2648 int *max_version
, int *real_max
);
2650 __owur OSSL_TIME
tls1_default_timeout(void);
2651 __owur
int dtls1_do_write(SSL_CONNECTION
*s
, uint8_t type
);
2652 void dtls1_set_message_header(SSL_CONNECTION
*s
,
2655 size_t frag_off
, size_t frag_len
);
2657 int dtls1_write_app_data_bytes(SSL
*s
, uint8_t type
, const void *buf_
,
2658 size_t len
, size_t *written
);
2660 __owur
int dtls1_read_failed(SSL_CONNECTION
*s
, int code
);
2661 __owur
int dtls1_buffer_message(SSL_CONNECTION
*s
, int ccs
);
2662 __owur
int dtls1_retransmit_message(SSL_CONNECTION
*s
, unsigned short seq
,
2664 __owur
int dtls1_get_queue_priority(unsigned short seq
, int is_ccs
);
2665 int dtls1_retransmit_buffered_messages(SSL_CONNECTION
*s
);
2666 void dtls1_clear_received_buffer(SSL_CONNECTION
*s
);
2667 void dtls1_clear_sent_buffer(SSL_CONNECTION
*s
);
2668 void dtls1_get_message_header(const unsigned char *data
,
2669 struct hm_header_st
*msg_hdr
);
2670 __owur OSSL_TIME
dtls1_default_timeout(void);
2671 __owur
int dtls1_get_timeout(const SSL_CONNECTION
*s
, OSSL_TIME
*timeleft
);
2672 __owur
int dtls1_check_timeout_num(SSL_CONNECTION
*s
);
2673 __owur
int dtls1_handle_timeout(SSL_CONNECTION
*s
);
2674 void dtls1_start_timer(SSL_CONNECTION
*s
);
2675 void dtls1_stop_timer(SSL_CONNECTION
*s
);
2676 __owur
int dtls1_is_timer_expired(SSL_CONNECTION
*s
);
2677 __owur
int dtls_raw_hello_verify_request(WPACKET
*pkt
, unsigned char *cookie
,
2679 __owur
size_t dtls1_min_mtu(SSL_CONNECTION
*s
);
2680 void dtls1_hm_fragment_free(hm_fragment
*frag
);
2681 __owur
int dtls1_query_mtu(SSL_CONNECTION
*s
);
2683 __owur
int tls1_new(SSL
*s
);
2684 void tls1_free(SSL
*s
);
2685 int tls1_clear(SSL
*s
);
2687 __owur
int dtls1_new(SSL
*s
);
2688 void dtls1_free(SSL
*s
);
2689 int dtls1_clear(SSL
*s
);
2690 long dtls1_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
);
2691 __owur
int dtls1_shutdown(SSL
*s
);
2693 __owur
int dtls1_dispatch_alert(SSL
*s
);
2695 __owur
int ssl_init_wbio_buffer(SSL_CONNECTION
*s
);
2696 int ssl_free_wbio_buffer(SSL_CONNECTION
*s
);
2698 __owur
int tls1_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2699 __owur
int tls1_setup_key_block(SSL_CONNECTION
*s
);
2700 __owur
size_t tls1_final_finish_mac(SSL_CONNECTION
*s
, const char *str
,
2701 size_t slen
, unsigned char *p
);
2702 __owur
int tls1_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2703 unsigned char *p
, size_t len
,
2704 size_t *secret_size
);
2705 __owur
int tls13_setup_key_block(SSL_CONNECTION
*s
);
2706 __owur
size_t tls13_final_finish_mac(SSL_CONNECTION
*s
, const char *str
, size_t slen
,
2708 __owur
int tls13_change_cipher_state(SSL_CONNECTION
*s
, int which
);
2709 __owur
int tls13_update_key(SSL_CONNECTION
*s
, int send
);
2710 __owur
int tls13_hkdf_expand(SSL_CONNECTION
*s
,
2712 const unsigned char *secret
,
2713 const unsigned char *label
, size_t labellen
,
2714 const unsigned char *data
, size_t datalen
,
2715 unsigned char *out
, size_t outlen
, int fatal
);
2716 __owur
int tls13_hkdf_expand_ex(OSSL_LIB_CTX
*libctx
, const char *propq
,
2718 const unsigned char *secret
,
2719 const unsigned char *label
, size_t labellen
,
2720 const unsigned char *data
, size_t datalen
,
2721 unsigned char *out
, size_t outlen
,
2723 __owur
int tls13_derive_key(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2724 const unsigned char *secret
, unsigned char *key
,
2726 __owur
int tls13_derive_iv(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2727 const unsigned char *secret
, unsigned char *iv
,
2729 __owur
int tls13_derive_finishedkey(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2730 const unsigned char *secret
,
2731 unsigned char *fin
, size_t finlen
);
2732 int tls13_generate_secret(SSL_CONNECTION
*s
, const EVP_MD
*md
,
2733 const unsigned char *prevsecret
,
2734 const unsigned char *insecret
,
2736 unsigned char *outsecret
);
2737 __owur
int tls13_generate_handshake_secret(SSL_CONNECTION
*s
,
2738 const unsigned char *insecret
,
2739 size_t insecretlen
);
2740 __owur
int tls13_generate_master_secret(SSL_CONNECTION
*s
, unsigned char *out
,
2741 unsigned char *prev
, size_t prevlen
,
2742 size_t *secret_size
);
2743 __owur
int tls1_export_keying_material(SSL_CONNECTION
*s
,
2744 unsigned char *out
, size_t olen
,
2745 const char *label
, size_t llen
,
2746 const unsigned char *p
, size_t plen
,
2748 __owur
int tls13_export_keying_material(SSL_CONNECTION
*s
,
2749 unsigned char *out
, size_t olen
,
2750 const char *label
, size_t llen
,
2751 const unsigned char *context
,
2752 size_t contextlen
, int use_context
);
2753 __owur
int tls13_export_keying_material_early(SSL_CONNECTION
*s
,
2754 unsigned char *out
, size_t olen
,
2755 const char *label
, size_t llen
,
2756 const unsigned char *context
,
2758 __owur
int tls1_alert_code(int code
);
2759 __owur
int tls13_alert_code(int code
);
2760 __owur
int ssl3_alert_code(int code
);
2762 __owur
int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CONNECTION
*s
);
2764 SSL_COMP
*ssl3_comp_find(STACK_OF(SSL_COMP
) *sk
, int n
);
2766 __owur
const TLS_GROUP_INFO
*tls1_group_id_lookup(SSL_CTX
*ctx
, uint16_t curve_id
);
2767 __owur
const char *tls1_group_id2name(SSL_CTX
*ctx
, uint16_t group_id
);
2768 __owur
int tls1_group_id2nid(uint16_t group_id
, int include_unknown
);
2769 __owur
uint16_t tls1_nid2group_id(int nid
);
2770 __owur
int tls1_check_group_id(SSL_CONNECTION
*s
, uint16_t group_id
,
2771 int check_own_curves
);
2772 __owur
uint16_t tls1_shared_group(SSL_CONNECTION
*s
, int nmatch
);
2773 __owur
int tls1_set_groups(uint16_t **pext
, size_t *pextlen
,
2774 int *curves
, size_t ncurves
);
2775 __owur
int tls1_set_groups_list(SSL_CTX
*ctx
, uint16_t **pext
, size_t *pextlen
,
2777 __owur EVP_PKEY
*ssl_generate_pkey_group(SSL_CONNECTION
*s
, uint16_t id
);
2778 __owur
int tls_valid_group(SSL_CONNECTION
*s
, uint16_t group_id
, int minversion
,
2779 int maxversion
, int isec
, int *okfortls13
);
2780 __owur EVP_PKEY
*ssl_generate_param_group(SSL_CONNECTION
*s
, uint16_t id
);
2781 void tls1_get_formatlist(SSL_CONNECTION
*s
, const unsigned char **pformats
,
2782 size_t *num_formats
);
2783 __owur
int tls1_check_ec_tmp_key(SSL_CONNECTION
*s
, unsigned long id
);
2785 __owur
int tls_group_allowed(SSL_CONNECTION
*s
, uint16_t curve
, int op
);
2786 void tls1_get_supported_groups(SSL_CONNECTION
*s
, const uint16_t **pgroups
,
2787 size_t *pgroupslen
);
2789 __owur
int tls1_set_server_sigalgs(SSL_CONNECTION
*s
);
2791 __owur SSL_TICKET_STATUS
tls_get_ticket_from_client(SSL_CONNECTION
*s
,
2792 CLIENTHELLO_MSG
*hello
,
2794 __owur SSL_TICKET_STATUS
tls_decrypt_ticket(SSL_CONNECTION
*s
,
2795 const unsigned char *etick
,
2797 const unsigned char *sess_id
,
2798 size_t sesslen
, SSL_SESSION
**psess
);
2800 __owur
int tls_use_ticket(SSL_CONNECTION
*s
);
2802 void ssl_set_sig_mask(uint32_t *pmask_a
, SSL_CONNECTION
*s
, int op
);
2804 __owur
int tls1_set_sigalgs_list(SSL_CTX
*ctx
, CERT
*c
, const char *str
, int client
);
2805 __owur
int tls1_set_raw_sigalgs(CERT
*c
, const uint16_t *psigs
, size_t salglen
,
2807 __owur
int tls1_set_sigalgs(CERT
*c
, const int *salg
, size_t salglen
,
2809 int tls1_check_chain(SSL_CONNECTION
*s
, X509
*x
, EVP_PKEY
*pk
,
2810 STACK_OF(X509
) *chain
, int idx
);
2811 void tls1_set_cert_validity(SSL_CONNECTION
*s
);
2813 # ifndef OPENSSL_NO_CT
2814 __owur
int ssl_validate_ct(SSL_CONNECTION
*s
);
2817 __owur EVP_PKEY
*ssl_get_auto_dh(SSL_CONNECTION
*s
);
2819 __owur
int ssl_security_cert(SSL_CONNECTION
*s
, SSL_CTX
*ctx
, X509
*x
, int vfy
,
2821 __owur
int ssl_security_cert_chain(SSL_CONNECTION
*s
, STACK_OF(X509
) *sk
,
2824 int tls_choose_sigalg(SSL_CONNECTION
*s
, int fatalerrs
);
2826 __owur
long ssl_get_algorithm2(SSL_CONNECTION
*s
);
2827 __owur
int tls12_copy_sigalgs(SSL_CONNECTION
*s
, WPACKET
*pkt
,
2828 const uint16_t *psig
, size_t psiglen
);
2829 __owur
int tls1_save_u16(PACKET
*pkt
, uint16_t **pdest
, size_t *pdestlen
);
2830 __owur
int tls1_save_sigalgs(SSL_CONNECTION
*s
, PACKET
*pkt
, int cert
);
2831 __owur
int tls1_process_sigalgs(SSL_CONNECTION
*s
);
2832 __owur
int tls1_set_peer_legacy_sigalg(SSL_CONNECTION
*s
, const EVP_PKEY
*pkey
);
2833 __owur
int tls1_lookup_md(SSL_CTX
*ctx
, const SIGALG_LOOKUP
*lu
,
2834 const EVP_MD
**pmd
);
2835 __owur
size_t tls12_get_psigalgs(SSL_CONNECTION
*s
, int sent
,
2836 const uint16_t **psigs
);
2837 __owur
int tls_check_sigalg_curve(const SSL_CONNECTION
*s
, int curve
);
2838 __owur
int tls12_check_peer_sigalg(SSL_CONNECTION
*s
, uint16_t, EVP_PKEY
*pkey
);
2839 __owur
int ssl_set_client_disabled(SSL_CONNECTION
*s
);
2840 __owur
int ssl_cipher_disabled(const SSL_CONNECTION
*s
, const SSL_CIPHER
*c
,
2843 __owur
int ssl_handshake_hash(SSL_CONNECTION
*s
,
2844 unsigned char *out
, size_t outlen
,
2846 __owur
const EVP_MD
*ssl_md(SSL_CTX
*ctx
, int idx
);
2847 int ssl_get_md_idx(int md_nid
);
2848 __owur
const EVP_MD
*ssl_handshake_md(SSL_CONNECTION
*s
);
2849 __owur
const EVP_MD
*ssl_prf_md(SSL_CONNECTION
*s
);
2852 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2853 * with |ssl|, if logging is enabled. It returns one on success and zero on
2854 * failure. The entry is identified by the first 8 bytes of
2855 * |encrypted_premaster|.
2857 __owur
int ssl_log_rsa_client_key_exchange(SSL_CONNECTION
*s
,
2858 const uint8_t *encrypted_premaster
,
2859 size_t encrypted_premaster_len
,
2860 const uint8_t *premaster
,
2861 size_t premaster_len
);
2864 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2865 * logging is available. It returns one on success and zero on failure. It tags
2866 * the entry with |label|.
2868 __owur
int ssl_log_secret(SSL_CONNECTION
*s
, const char *label
,
2869 const uint8_t *secret
, size_t secret_len
);
2871 #define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2872 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
2873 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2874 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2875 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2876 #define CLIENT_APPLICATION_N_LABEL "CLIENT_TRAFFIC_SECRET_N"
2877 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2878 #define SERVER_APPLICATION_N_LABEL "SERVER_TRAFFIC_SECRET_N"
2879 #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET"
2880 #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET"
2882 __owur
int srp_generate_server_master_secret(SSL_CONNECTION
*s
);
2883 __owur
int srp_generate_client_master_secret(SSL_CONNECTION
*s
);
2884 __owur
int srp_verify_server_param(SSL_CONNECTION
*s
);
2886 /* statem/statem_srvr.c */
2888 __owur
int send_certificate_request(SSL_CONNECTION
*s
);
2890 /* statem/extensions_cust.c */
2892 custom_ext_method
*custom_ext_find(const custom_ext_methods
*exts
,
2893 ENDPOINT role
, unsigned int ext_type
,
2896 void custom_ext_init(custom_ext_methods
*meths
);
2898 int ossl_tls_add_custom_ext_intern(SSL_CTX
*ctx
, custom_ext_methods
*exts
,
2899 ENDPOINT role
, unsigned int ext_type
,
2900 unsigned int context
,
2901 SSL_custom_ext_add_cb_ex add_cb
,
2902 SSL_custom_ext_free_cb_ex free_cb
,
2904 SSL_custom_ext_parse_cb_ex parse_cb
,
2906 __owur
int custom_ext_parse(SSL_CONNECTION
*s
, unsigned int context
,
2907 unsigned int ext_type
,
2908 const unsigned char *ext_data
, size_t ext_size
,
2909 X509
*x
, size_t chainidx
);
2910 __owur
int custom_ext_add(SSL_CONNECTION
*s
, int context
, WPACKET
*pkt
, X509
*x
,
2911 size_t chainidx
, int maxversion
);
2913 __owur
int custom_exts_copy(custom_ext_methods
*dst
,
2914 const custom_ext_methods
*src
);
2915 __owur
int custom_exts_copy_flags(custom_ext_methods
*dst
,
2916 const custom_ext_methods
*src
);
2917 void custom_exts_free(custom_ext_methods
*exts
);
2919 void ssl_comp_free_compression_methods_int(void);
2922 void ssl_ctx_system_config(SSL_CTX
*ctx
);
2924 const EVP_CIPHER
*ssl_evp_cipher_fetch(OSSL_LIB_CTX
*libctx
,
2926 const char *properties
);
2927 int ssl_evp_cipher_up_ref(const EVP_CIPHER
*cipher
);
2928 void ssl_evp_cipher_free(const EVP_CIPHER
*cipher
);
2929 const EVP_MD
*ssl_evp_md_fetch(OSSL_LIB_CTX
*libctx
,
2931 const char *properties
);
2932 int ssl_evp_md_up_ref(const EVP_MD
*md
);
2933 void ssl_evp_md_free(const EVP_MD
*md
);
2935 void tls_engine_finish(ENGINE
*e
);
2936 const EVP_CIPHER
*tls_get_cipher_from_engine(int nid
);
2937 const EVP_MD
*tls_get_digest_from_engine(int nid
);
2938 int tls_engine_load_ssl_client_cert(SSL_CONNECTION
*s
, X509
**px509
,
2940 int ssl_hmac_old_new(SSL_HMAC
*ret
);
2941 void ssl_hmac_old_free(SSL_HMAC
*ctx
);
2942 int ssl_hmac_old_init(SSL_HMAC
*ctx
, void *key
, size_t len
, char *md
);
2943 int ssl_hmac_old_update(SSL_HMAC
*ctx
, const unsigned char *data
, size_t len
);
2944 int ssl_hmac_old_final(SSL_HMAC
*ctx
, unsigned char *md
, size_t *len
);
2945 size_t ssl_hmac_old_size(const SSL_HMAC
*ctx
);
2947 int ssl_ctx_srp_ctx_free_intern(SSL_CTX
*ctx
);
2948 int ssl_ctx_srp_ctx_init_intern(SSL_CTX
*ctx
);
2949 int ssl_srp_ctx_free_intern(SSL_CONNECTION
*s
);
2950 int ssl_srp_ctx_init_intern(SSL_CONNECTION
*s
);
2952 int ssl_srp_calc_a_param_intern(SSL_CONNECTION
*s
);
2953 int ssl_srp_server_param_with_username_intern(SSL_CONNECTION
*s
, int *ad
);
2955 void ssl_session_calculate_timeout(SSL_SESSION
*ss
);
2957 # else /* OPENSSL_UNIT_TEST */
2959 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2963 /* Some helper routines to support TSAN operations safely */
2964 static ossl_unused ossl_inline
int ssl_tsan_lock(const SSL_CTX
*ctx
)
2966 #ifdef TSAN_REQUIRES_LOCKING
2967 if (!CRYPTO_THREAD_write_lock(ctx
->tsan_lock
))
2973 static ossl_unused ossl_inline
void ssl_tsan_unlock(const SSL_CTX
*ctx
)
2975 #ifdef TSAN_REQUIRES_LOCKING
2976 CRYPTO_THREAD_unlock(ctx
->tsan_lock
);
2980 static ossl_unused ossl_inline
void ssl_tsan_counter(const SSL_CTX
*ctx
,
2981 TSAN_QUALIFIER
int *stat
)
2983 if (ssl_tsan_lock(ctx
)) {
2985 ssl_tsan_unlock(ctx
);
2989 int ossl_comp_has_alg(int a
);
2990 size_t ossl_calculate_comp_expansion(int alg
, size_t length
);
2992 void ossl_ssl_set_custom_record_layer(SSL_CONNECTION
*s
,
2993 const OSSL_RECORD_METHOD
*meth
,
2996 long ossl_ctrl_internal(SSL
*s
, int cmd
, long larg
, void *parg
, int no_quic
);
2999 * Options which no longer have any effect, but which can be implemented
3000 * as no-ops for QUIC.
3002 #define OSSL_LEGACY_SSL_OPTIONS \
3003 (SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG | \
3004 SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER | \
3005 SSL_OP_SSLEAY_080_CLIENT_DH_BUG | \
3006 SSL_OP_TLS_D5_BUG | \
3007 SSL_OP_TLS_BLOCK_PADDING_BUG | \
3008 SSL_OP_MSIE_SSLV2_RSA_PADDING | \
3009 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG | \
3010 SSL_OP_MICROSOFT_SESS_ID_BUG | \
3011 SSL_OP_NETSCAPE_CHALLENGE_BUG | \
3012 SSL_OP_PKCS1_CHECK_1 | \
3013 SSL_OP_PKCS1_CHECK_2 | \
3014 SSL_OP_SINGLE_DH_USE | \
3015 SSL_OP_SINGLE_ECDH_USE | \
3016 SSL_OP_EPHEMERAL_RSA )
3018 /* This option is undefined in public headers with no-dtls1-method. */
3019 #ifndef SSL_OP_CISCO_ANYCONNECT
3020 # define SSL_OP_CISCO_ANYCONNECT 0
3023 * Options which are no-ops under QUIC or TLSv1.3 and which are therefore
3024 * allowed but ignored under QUIC.
3026 #define OSSL_TLS1_2_OPTIONS \
3027 (SSL_OP_CRYPTOPRO_TLSEXT_BUG | \
3028 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS | \
3029 SSL_OP_ALLOW_CLIENT_RENEGOTIATION | \
3030 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION | \
3031 SSL_OP_NO_COMPRESSION | \
3034 SSL_OP_NO_TLSv1_1 | \
3035 SSL_OP_NO_TLSv1_2 | \
3036 SSL_OP_NO_DTLSv1 | \
3037 SSL_OP_NO_DTLSv1_2 | \
3038 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | \
3039 SSL_OP_CISCO_ANYCONNECT | \
3040 SSL_OP_NO_RENEGOTIATION | \
3041 SSL_OP_NO_EXTENDED_MASTER_SECRET | \
3042 SSL_OP_NO_ENCRYPT_THEN_MAC | \
3043 SSL_OP_COOKIE_EXCHANGE | \
3044 SSL_OP_LEGACY_SERVER_CONNECT | \
3045 SSL_OP_IGNORE_UNEXPECTED_EOF )
3047 /* Total mask of connection-level options permitted or ignored under QUIC. */
3048 #define OSSL_QUIC_PERMITTED_OPTIONS_CONN \
3049 (OSSL_LEGACY_SSL_OPTIONS | \
3050 OSSL_TLS1_2_OPTIONS | \
3051 SSL_OP_CIPHER_SERVER_PREFERENCE | \
3052 SSL_OP_DISABLE_TLSEXT_CA_NAMES | \
3053 SSL_OP_NO_TX_CERTIFICATE_COMPRESSION | \
3054 SSL_OP_NO_RX_CERTIFICATE_COMPRESSION | \
3055 SSL_OP_PRIORITIZE_CHACHA | \
3056 SSL_OP_NO_QUERY_MTU | \
3057 SSL_OP_NO_TICKET | \
3058 SSL_OP_NO_ANTI_REPLAY )
3060 /* Total mask of stream-level options permitted or ignored under QUIC. */
3061 #define OSSL_QUIC_PERMITTED_OPTIONS_STREAM \
3062 (OSSL_LEGACY_SSL_OPTIONS | \
3063 OSSL_TLS1_2_OPTIONS | \
3064 SSL_OP_CLEANSE_PLAINTEXT )
3066 /* Total mask of options permitted on either connections or streams. */
3067 #define OSSL_QUIC_PERMITTED_OPTIONS \
3068 (OSSL_QUIC_PERMITTED_OPTIONS_CONN | \
3069 OSSL_QUIC_PERMITTED_OPTIONS_STREAM)