1 /*
2 * Copyright 1995-2024 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.
5 *
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
10 */
11
12 #ifndef OSSL_SSL_LOCAL_H
13 # define OSSL_SSL_LOCAL_H
14
15 # include <stdlib.h>
16 # include <time.h>
17 # include <errno.h>
18 # include "internal/common.h" /* for HAS_PREFIX */
19
20 # include <openssl/buffer.h>
21 # include <openssl/bio.h>
22 # include <openssl/comp.h>
23 # include <openssl/dsa.h>
24 # include <openssl/err.h>
25 # include <openssl/ssl.h>
26 # include <openssl/async.h>
27 # include <openssl/symhacks.h>
28 # include <openssl/ct.h>
29 # include "internal/recordmethod.h"
30 # include "internal/statem.h"
31 # include "internal/packet.h"
32 # include "internal/dane.h"
33 # include "internal/refcount.h"
34 # include "internal/tsan_assist.h"
35 # include "internal/bio.h"
36 # include "internal/ktls.h"
37 # include "internal/time.h"
38 # include "internal/ssl.h"
39 # include "internal/cryptlib.h"
40 # include "record/record.h"
41
42 # ifdef OPENSSL_BUILD_SHLIBSSL
43 # undef OPENSSL_EXTERN
44 # define OPENSSL_EXTERN OPENSSL_EXPORT
45 # endif
46
47 # define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION
48 # define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION
49
50 /*
51 * DTLS version numbers are strange because they're inverted. Except for
52 * DTLS1_BAD_VER, which should be considered "lower" than the rest.
53 */
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))
59
60 # define SSL_AD_NO_ALERT -1
61
62 /*
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.
69 *
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.
74 */
75
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
81 /* ephemeral ECDH */
82 # define SSL_kECDHE 0x00000004U
83 /* PSK */
84 # define SSL_kPSK 0x00000008U
85 /* GOST key exchange */
86 # define SSL_kGOST 0x00000010U
87 /* SRP */
88 # define SSL_kSRP 0x00000020U
89
90 # define SSL_kRSAPSK 0x00000040U
91 # define SSL_kECDHEPSK 0x00000080U
92 # define SSL_kDHEPSK 0x00000100U
93 /* GOST KDF key exchange, draft-smyshlyaev-tls12-gost-suites */
94 # define SSL_kGOST18 0x00000200U
95
96 /* all PSK */
97
98 # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
99
100 /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
101 # define SSL_kANY 0x00000000U
102
103 /* Bits for algorithm_auth (server authentication) */
104 /* RSA auth */
105 # define SSL_aRSA 0x00000001U
106 /* DSS auth */
107 # define SSL_aDSS 0x00000002U
108 /* no auth (i.e. use ADH or AECDH) */
109 # define SSL_aNULL 0x00000004U
110 /* ECDSA auth*/
111 # define SSL_aECDSA 0x00000008U
112 /* PSK auth */
113 # define SSL_aPSK 0x00000010U
114 /* GOST R 34.10-2001 signature auth */
115 # define SSL_aGOST01 0x00000020U
116 /* SRP auth */
117 # define SSL_aSRP 0x00000040U
118 /* GOST R 34.10-2012 signature auth */
119 # define SSL_aGOST12 0x00000080U
120 /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
121 # define SSL_aANY 0x00000000U
122 /* All bits requiring a certificate */
123 #define SSL_aCERT \
124 (SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12)
125
126 /* Bits for algorithm_enc (symmetric encryption) */
127 # define SSL_DES 0x00000001U
128 # define SSL_3DES 0x00000002U
129 # define SSL_RC4 0x00000004U
130 # define SSL_RC2 0x00000008U
131 # define SSL_IDEA 0x00000010U
132 # define SSL_eNULL 0x00000020U
133 # define SSL_AES128 0x00000040U
134 # define SSL_AES256 0x00000080U
135 # define SSL_CAMELLIA128 0x00000100U
136 # define SSL_CAMELLIA256 0x00000200U
137 # define SSL_eGOST2814789CNT 0x00000400U
138 # define SSL_SEED 0x00000800U
139 # define SSL_AES128GCM 0x00001000U
140 # define SSL_AES256GCM 0x00002000U
141 # define SSL_AES128CCM 0x00004000U
142 # define SSL_AES256CCM 0x00008000U
143 # define SSL_AES128CCM8 0x00010000U
144 # define SSL_AES256CCM8 0x00020000U
145 # define SSL_eGOST2814789CNT12 0x00040000U
146 # define SSL_CHACHA20POLY1305 0x00080000U
147 # define SSL_ARIA128GCM 0x00100000U
148 # define SSL_ARIA256GCM 0x00200000U
149 # define SSL_MAGMA 0x00400000U
150 # define SSL_KUZNYECHIK 0x00800000U
151
152 # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
153 # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
154 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
155 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
156 # define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
157 # define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM)
158 # define SSL_ARIA (SSL_ARIAGCM)
159 # define SSL_CBC (SSL_DES | SSL_3DES | SSL_RC2 | SSL_IDEA \
160 | SSL_AES128 | SSL_AES256 | SSL_CAMELLIA128 \
161 | SSL_CAMELLIA256 | SSL_SEED)
162
163 /* Bits for algorithm_mac (symmetric authentication) */
164
165 # define SSL_MD5 0x00000001U
166 # define SSL_SHA1 0x00000002U
167 # define SSL_GOST94 0x00000004U
168 # define SSL_GOST89MAC 0x00000008U
169 # define SSL_SHA256 0x00000010U
170 # define SSL_SHA384 0x00000020U
171 /* Not a real MAC, just an indication it is part of cipher */
172 # define SSL_AEAD 0x00000040U
173 # define SSL_GOST12_256 0x00000080U
174 # define SSL_GOST89MAC12 0x00000100U
175 # define SSL_GOST12_512 0x00000200U
176 # define SSL_MAGMAOMAC 0x00000400U
177 # define SSL_KUZNYECHIKOMAC 0x00000800U
178
179 /*
180 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
181 * sure to update this constant too
182 */
183
184 # define SSL_MD_MD5_IDX 0
185 # define SSL_MD_SHA1_IDX 1
186 # define SSL_MD_GOST94_IDX 2
187 # define SSL_MD_GOST89MAC_IDX 3
188 # define SSL_MD_SHA256_IDX 4
189 # define SSL_MD_SHA384_IDX 5
190 # define SSL_MD_GOST12_256_IDX 6
191 # define SSL_MD_GOST89MAC12_IDX 7
192 # define SSL_MD_GOST12_512_IDX 8
193 # define SSL_MD_MD5_SHA1_IDX 9
194 # define SSL_MD_SHA224_IDX 10
195 # define SSL_MD_SHA512_IDX 11
196 # define SSL_MD_MAGMAOMAC_IDX 12
197 # define SSL_MD_KUZNYECHIKOMAC_IDX 13
198 # define SSL_MAX_DIGEST 14
199
200 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST
201
202 /* Bits for algorithm2 (handshake digests and other extra flags) */
203
204 /* Bits 0-7 are handshake MAC */
205 # define SSL_HANDSHAKE_MAC_MASK 0xFF
206 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
207 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
208 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
209 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
210 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
211 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
212 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
213
214 /* Bits 8-15 bits are PRF */
215 # define TLS1_PRF_DGST_SHIFT 8
216 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
217 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
218 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
219 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
220 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
221 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
222 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
223
224 /*
225 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
226 * goes into algorithm2)
227 */
228 # define TLS1_STREAM_MAC 0x10000
229 /*
230 * TLSTREE cipher/mac key derivation from draft-smyshlyaev-tls12-gost-suites
231 * (currently this also goes into algorithm2)
232 */
233 # define TLS1_TLSTREE 0x20000
234
235 /* Ciphersuite supported in QUIC */
236 # define SSL_QUIC 0x00040000U
237
238 # define SSL_STRONG_MASK 0x0000001FU
239 # define SSL_DEFAULT_MASK 0X00000020U
240
241 # define SSL_STRONG_NONE 0x00000001U
242 # define SSL_LOW 0x00000002U
243 # define SSL_MEDIUM 0x00000004U
244 # define SSL_HIGH 0x00000008U
245 # define SSL_FIPS 0x00000010U
246 # define SSL_NOT_DEFAULT 0x00000020U
247
248 /* we have used 0000003f - 26 bits left to go */
249
250 /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
251 # define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
252
253 /* Check if an SSL structure is using DTLS */
254 # define SSL_CONNECTION_IS_DTLS(s) \
255 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
256
257 /* Check if we are using TLSv1.3 */
258 # define SSL_CONNECTION_IS_TLS13(s) (!SSL_CONNECTION_IS_DTLS(s) \
259 && SSL_CONNECTION_GET_SSL(s)->method->version >= TLS1_3_VERSION \
260 && SSL_CONNECTION_GET_SSL(s)->method->version != TLS_ANY_VERSION)
261
262 # define SSL_CONNECTION_TREAT_AS_TLS13(s) \
263 (SSL_CONNECTION_IS_TLS13(s) \
264 || (s)->early_data_state == SSL_EARLY_DATA_CONNECTING \
265 || (s)->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY \
266 || (s)->early_data_state == SSL_EARLY_DATA_WRITING \
267 || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \
268 || (s)->hello_retry_request == SSL_HRR_PENDING)
269
270 # define SSL_IS_FIRST_HANDSHAKE(s) ((s)->s3.tmp.finish_md_len == 0 \
271 || (s)->s3.tmp.peer_finish_md_len == 0)
272
273 /*
274 * See if we use signature algorithms extension and signature algorithm
275 * before signatures.
276 */
277 # define SSL_USE_SIGALGS(s) \
278 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
279 /*
280 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
281 * apply to others in future.
282 */
283 # define SSL_USE_TLS1_2_CIPHERS(s) \
284 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
285 /*
286 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
287 * flags because it may not be set to correct version yet.
288 */
289 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
290 ((!SSL_CONNECTION_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
291 (SSL_CONNECTION_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
292 /*
293 * Determine if a client should send signature algorithms extension:
294 * as with TLS1.2 cipher we can't rely on method flags.
295 */
296 # define SSL_CLIENT_USE_SIGALGS(s) \
297 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
298
299 # define IS_MAX_FRAGMENT_LENGTH_EXT_VALID(value) \
300 (((value) >= TLSEXT_max_fragment_length_512) && \
301 ((value) <= TLSEXT_max_fragment_length_4096))
302 # define USE_MAX_FRAGMENT_LENGTH_EXT(session) \
303 IS_MAX_FRAGMENT_LENGTH_EXT_VALID(session->ext.max_fragment_len_mode)
304 # define GET_MAX_FRAGMENT_LENGTH(session) \
305 (512U << (session->ext.max_fragment_len_mode - 1))
306
307 # define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ)
308 # define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE)
309
310 # define SSL_IS_QUIC_HANDSHAKE(s) (((s)->s3.flags & TLS1_FLAGS_QUIC) != 0)
311
312 /* alert_dispatch values */
313
314 /* No alert pending */
315 # define SSL_ALERT_DISPATCH_NONE 0
316 /* Alert pending */
317 # define SSL_ALERT_DISPATCH_PENDING 1
318 /* Pending alert write needs to be retried */
319 # define SSL_ALERT_DISPATCH_RETRY 2
320
321 /* Mostly for SSLv3 */
322 # define SSL_PKEY_RSA 0
323 # define SSL_PKEY_RSA_PSS_SIGN 1
324 # define SSL_PKEY_DSA_SIGN 2
325 # define SSL_PKEY_ECC 3
326 # define SSL_PKEY_GOST01 4
327 # define SSL_PKEY_GOST12_256 5
328 # define SSL_PKEY_GOST12_512 6
329 # define SSL_PKEY_ED25519 7
330 # define SSL_PKEY_ED448 8
331 # define SSL_PKEY_NUM 9
332
333 # define SSL_ENC_DES_IDX 0
334 # define SSL_ENC_3DES_IDX 1
335 # define SSL_ENC_RC4_IDX 2
336 # define SSL_ENC_RC2_IDX 3
337 # define SSL_ENC_IDEA_IDX 4
338 # define SSL_ENC_NULL_IDX 5
339 # define SSL_ENC_AES128_IDX 6
340 # define SSL_ENC_AES256_IDX 7
341 # define SSL_ENC_CAMELLIA128_IDX 8
342 # define SSL_ENC_CAMELLIA256_IDX 9
343 # define SSL_ENC_GOST89_IDX 10
344 # define SSL_ENC_SEED_IDX 11
345 # define SSL_ENC_AES128GCM_IDX 12
346 # define SSL_ENC_AES256GCM_IDX 13
347 # define SSL_ENC_AES128CCM_IDX 14
348 # define SSL_ENC_AES256CCM_IDX 15
349 # define SSL_ENC_AES128CCM8_IDX 16
350 # define SSL_ENC_AES256CCM8_IDX 17
351 # define SSL_ENC_GOST8912_IDX 18
352 # define SSL_ENC_CHACHA_IDX 19
353 # define SSL_ENC_ARIA128GCM_IDX 20
354 # define SSL_ENC_ARIA256GCM_IDX 21
355 # define SSL_ENC_MAGMA_IDX 22
356 # define SSL_ENC_KUZNYECHIK_IDX 23
357 # define SSL_ENC_NUM_IDX 24
358
359 /*-
360 * SSL_kRSA <- RSA_ENC
361 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
362 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
363 * SSL_aRSA <- RSA_ENC | RSA_SIGN
364 * SSL_aDSS <- DSA_SIGN
365 */
366
367 /* Certificate Type State */
368 # define OSSL_CERT_TYPE_CTOS_NONE 0
369 # define OSSL_CERT_TYPE_CTOS_GOOD 1
370 # define OSSL_CERT_TYPE_CTOS_ERROR 2
371
372 /* Post-Handshake Authentication state */
373 typedef enum {
374 SSL_PHA_NONE = 0,
375 SSL_PHA_EXT_SENT, /* client-side only: extension sent */
376 SSL_PHA_EXT_RECEIVED, /* server-side only: extension received */
377 SSL_PHA_REQUEST_PENDING, /* server-side only: request pending */
378 SSL_PHA_REQUESTED /* request received by client, or sent by server */
379 } SSL_PHA_STATE;
380
381 /* CipherSuite length. SSLv3 and all TLS versions. */
382 # define TLS_CIPHER_LEN 2
383 /* used to hold info on the particular ciphers used */
384 struct ssl_cipher_st {
385 uint32_t valid;
386 const char *name; /* text name */
387 const char *stdname; /* RFC name */
388 uint32_t id; /* id, 4 bytes, first is version */
389 /*
390 * changed in 1.0.0: these four used to be portions of a single value
391 * 'algorithms'
392 */
393 uint32_t algorithm_mkey; /* key exchange algorithm */
394 uint32_t algorithm_auth; /* server authentication */
395 uint32_t algorithm_enc; /* symmetric encryption */
396 uint32_t algorithm_mac; /* symmetric authentication */
397 int min_tls; /* minimum SSL/TLS protocol version */
398 int max_tls; /* maximum SSL/TLS protocol version */
399 int min_dtls; /* minimum DTLS protocol version */
400 int max_dtls; /* maximum DTLS protocol version */
401 uint32_t algo_strength; /* strength and export flags */
402 uint32_t algorithm2; /* Extra flags */
403 int32_t strength_bits; /* Number of bits really used */
404 uint32_t alg_bits; /* Number of bits for algorithm */
405 };
406
407 /* Used to hold SSL/TLS functions */
408 struct ssl_method_st {
409 int version;
410 unsigned flags;
411 uint64_t mask;
412 SSL *(*ssl_new) (SSL_CTX *ctx);
413 void (*ssl_free) (SSL *s);
414 int (*ssl_reset) (SSL *s);
415 int (*ssl_init) (SSL *s);
416 int (*ssl_clear) (SSL *s);
417 void (*ssl_deinit) (SSL *s);
418 int (*ssl_accept) (SSL *s);
419 int (*ssl_connect) (SSL *s);
420 int (*ssl_read) (SSL *s, void *buf, size_t len, size_t *readbytes);
421 int (*ssl_peek) (SSL *s, void *buf, size_t len, size_t *readbytes);
422 int (*ssl_write) (SSL *s, const void *buf, size_t len, size_t *written);
423 int (*ssl_shutdown) (SSL *s);
424 int (*ssl_renegotiate) (SSL *s);
425 int (*ssl_renegotiate_check) (SSL *s, int);
426 int (*ssl_read_bytes) (SSL *s, uint8_t type, uint8_t *recvd_type,
427 unsigned char *buf, size_t len, int peek,
428 size_t *readbytes);
429 int (*ssl_write_bytes) (SSL *s, uint8_t type, const void *buf_, size_t len,
430 size_t *written);
431 int (*ssl_dispatch_alert) (SSL *s);
432 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
433 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
434 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
435 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, WPACKET *pkt,
436 size_t *len);
437 size_t (*ssl_pending) (const SSL *s);
438 int (*num_ciphers) (void);
439 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
440 OSSL_TIME (*get_timeout) (void);
441 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
442 int (*ssl_version) (void);
443 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
444 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
445 };
446
447 /*
448 * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for
449 * consistency, even in the event of OPENSSL_NO_PSK being defined.
450 */
451 # define TLS13_MAX_RESUMPTION_PSK_LENGTH 512
452
453 /*-
454 * Lets make this into an ASN.1 type structure as follows
455 * SSL_SESSION_ID ::= SEQUENCE {
456 * version INTEGER, -- structure version number
457 * SSLversion INTEGER, -- SSL version number
458 * Cipher OCTET STRING, -- the 3 byte cipher ID
459 * Session_ID OCTET STRING, -- the Session ID
460 * Master_key OCTET STRING, -- the master key
461 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
462 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
463 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
464 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
465 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
466 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
467 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
468 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
469 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
470 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
471 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
472 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
473 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
474 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
475 * }
476 * Look in ssl/ssl_asn1.c for more details
477 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
478 */
479 struct ssl_session_st {
480 int ssl_version; /* what ssl version session info is being kept
481 * in here? */
482 size_t master_key_length;
483
484 /* TLSv1.3 early_secret used for external PSKs */
485 unsigned char early_secret[EVP_MAX_MD_SIZE];
486 /*
487 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
488 * PSK
489 */
490 unsigned char master_key[TLS13_MAX_RESUMPTION_PSK_LENGTH];
491 /* session_id - valid? */
492 size_t session_id_length;
493 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
494 /*
495 * this is used to determine whether the session is being reused in the
496 * appropriate context. It is up to the application to set this, via
497 * SSL_new
498 */
499 size_t sid_ctx_length;
500 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
501 # ifndef OPENSSL_NO_PSK
502 char *psk_identity_hint;
503 char *psk_identity;
504 # endif
505 /*
506 * Used to indicate that session resumption is not allowed. Applications
507 * can also set this bit for a new session via not_resumable_session_cb
508 * to disable session caching and tickets.
509 */
510 int not_resumable;
511 /* Peer raw public key, if available */
512 EVP_PKEY *peer_rpk;
513 /* This is the cert and type for the other end. */
514 X509 *peer;
515 /* Certificate chain peer sent. */
516 STACK_OF(X509) *peer_chain;
517 /*
518 * when app_verify_callback accepts a session where the peer's
519 * certificate is not ok, we must remember the error for session reuse:
520 */
521 long verify_result; /* only for servers */
522 OSSL_TIME timeout;
523 OSSL_TIME time;
524 OSSL_TIME calc_timeout;
525 unsigned int compress_meth; /* Need to lookup the method */
526 const SSL_CIPHER *cipher;
527 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to
528 * load the 'cipher' structure */
529 unsigned int kex_group; /* TLS group from key exchange */
530 CRYPTO_EX_DATA ex_data; /* application specific data */
531
532 struct {
533 char *hostname;
534 /* RFC4507 info */
535 unsigned char *tick; /* Session ticket */
536 size_t ticklen; /* Session ticket length */
537 /* Session lifetime hint in seconds */
538 unsigned long tick_lifetime_hint;
539 uint32_t tick_age_add;
540 /* Max number of bytes that can be sent as early data */
541 uint32_t max_early_data;
542 /* The ALPN protocol selected for this session */
543 unsigned char *alpn_selected;
544 size_t alpn_selected_len;
545 /*
546 * Maximum Fragment Length as per RFC 4366.
547 * If this value does not contain RFC 4366 allowed values (1-4) then
548 * either the Maximum Fragment Length Negotiation failed or was not
549 * performed at all.
550 */
551 uint8_t max_fragment_len_mode;
552 } ext;
553 # ifndef OPENSSL_NO_SRP
554 char *srp_username;
555 # endif
556 unsigned char *ticket_appdata;
557 size_t ticket_appdata_len;
558 uint32_t flags;
559 SSL_CTX *owner;
560
561 /*
562 * These are used to make removal of session-ids more efficient and to
563 * implement a maximum cache size. Access requires protection of ctx->lock.
564 */
565 struct ssl_session_st *prev, *next;
566 CRYPTO_REF_COUNT references;
567 };
568
569 /* Extended master secret support */
570 # define SSL_SESS_FLAG_EXTMS 0x1
571
572 # ifndef OPENSSL_NO_SRP
573
574 typedef struct srp_ctx_st {
575 /* param for all the callbacks */
576 void *SRP_cb_arg;
577 /* set client Hello login callback */
578 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
579 /* set SRP N/g param callback for verification */
580 int (*SRP_verify_param_callback) (SSL *, void *);
581 /* set SRP client passwd callback */
582 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
583 char *login;
584 BIGNUM *N, *g, *s, *B, *A;
585 BIGNUM *a, *b, *v;
586 char *info;
587 int strength;
588 unsigned long srp_Mask;
589 } SRP_CTX;
590
591 # endif
592
593 typedef enum {
594 SSL_EARLY_DATA_NONE = 0,
595 SSL_EARLY_DATA_CONNECT_RETRY,
596 SSL_EARLY_DATA_CONNECTING,
597 SSL_EARLY_DATA_WRITE_RETRY,
598 SSL_EARLY_DATA_WRITING,
599 SSL_EARLY_DATA_WRITE_FLUSH,
600 SSL_EARLY_DATA_UNAUTH_WRITING,
601 SSL_EARLY_DATA_FINISHED_WRITING,
602 SSL_EARLY_DATA_ACCEPT_RETRY,
603 SSL_EARLY_DATA_ACCEPTING,
604 SSL_EARLY_DATA_READ_RETRY,
605 SSL_EARLY_DATA_READING,
606 SSL_EARLY_DATA_FINISHED_READING
607 } SSL_EARLY_DATA_STATE;
608
609 /*
610 * We check that the amount of unreadable early data doesn't exceed
611 * max_early_data. max_early_data is given in plaintext bytes. However if it is
612 * unreadable then we only know the number of ciphertext bytes. We also don't
613 * know how much the overhead should be because it depends on the ciphersuite.
614 * We make a small allowance. We assume 5 records of actual data plus the end
615 * of early data alert record. Each record has a tag and a content type byte.
616 * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the
617 * content of the alert record either which is 2 bytes.
618 */
619 # define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2)
620
621 /*
622 * The allowance we have between the client's calculated ticket age and our own.
623 * We allow for 10 seconds. If a ticket is presented and the
624 * client's age calculation is different by more than this than our own then we
625 * do not allow that ticket for early_data.
626 */
627 # define TICKET_AGE_ALLOWANCE ossl_seconds2time(10)
628
629 #define MAX_COMPRESSIONS_SIZE 255
630
631
632 typedef struct raw_extension_st {
633 /* Raw packet data for the extension */
634 PACKET data;
635 /* Set to 1 if the extension is present or 0 otherwise */
636 int present;
637 /* Set to 1 if we have already parsed the extension or 0 otherwise */
638 int parsed;
639 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
640 unsigned int type;
641 /* Track what order extensions are received in (0-based). */
642 size_t received_order;
643 } RAW_EXTENSION;
644
645 typedef struct {
646 unsigned int isv2;
647 unsigned int legacy_version;
648 unsigned char random[SSL3_RANDOM_SIZE];
649 size_t session_id_len;
650 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
651 size_t dtls_cookie_len;
652 unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
653 PACKET ciphersuites;
654 size_t compressions_len;
655 unsigned char compressions[MAX_COMPRESSIONS_SIZE];
656 PACKET extensions;
657 size_t pre_proc_exts_len;
658 RAW_EXTENSION *pre_proc_exts;
659 } CLIENTHELLO_MSG;
660
661 /*
662 * Extension index values NOTE: Any updates to these defines should be mirrored
663 * with equivalent updates to ext_defs in extensions.c
664 */
665 typedef enum tlsext_index_en {
666 TLSEXT_IDX_renegotiate,
667 TLSEXT_IDX_server_name,
668 TLSEXT_IDX_max_fragment_length,
669 TLSEXT_IDX_srp,
670 TLSEXT_IDX_ec_point_formats,
671 TLSEXT_IDX_supported_groups,
672 TLSEXT_IDX_session_ticket,
673 TLSEXT_IDX_status_request,
674 TLSEXT_IDX_next_proto_neg,
675 TLSEXT_IDX_application_layer_protocol_negotiation,
676 TLSEXT_IDX_use_srtp,
677 TLSEXT_IDX_encrypt_then_mac,
678 TLSEXT_IDX_signed_certificate_timestamp,
679 TLSEXT_IDX_extended_master_secret,
680 TLSEXT_IDX_signature_algorithms_cert,
681 TLSEXT_IDX_post_handshake_auth,
682 TLSEXT_IDX_client_cert_type,
683 TLSEXT_IDX_server_cert_type,
684 TLSEXT_IDX_signature_algorithms,
685 TLSEXT_IDX_supported_versions,
686 TLSEXT_IDX_psk_kex_modes,
687 TLSEXT_IDX_key_share,
688 TLSEXT_IDX_cookie,
689 TLSEXT_IDX_cryptopro_bug,
690 TLSEXT_IDX_compress_certificate,
691 TLSEXT_IDX_early_data,
692 TLSEXT_IDX_certificate_authorities,
693 TLSEXT_IDX_padding,
694 TLSEXT_IDX_psk,
695 /* Dummy index - must always be the last entry */
696 TLSEXT_IDX_num_builtins
697 } TLSEXT_INDEX;
698
699 DEFINE_LHASH_OF_EX(SSL_SESSION);
700 /* Needed in ssl_cert.c */
701 DEFINE_LHASH_OF_EX(X509_NAME);
702
703 # define TLSEXT_KEYNAME_LENGTH 16
704 # define TLSEXT_TICK_KEY_LENGTH 32
705
706 typedef struct ssl_ctx_ext_secure_st {
707 unsigned char tick_hmac_key[TLSEXT_TICK_KEY_LENGTH];
708 unsigned char tick_aes_key[TLSEXT_TICK_KEY_LENGTH];
709 } SSL_CTX_EXT_SECURE;
710
711 /*
712 * Helper function for HMAC
713 * The structure should be considered opaque, it will change once the low
714 * level deprecated calls are removed. At that point it can be replaced
715 * by EVP_MAC_CTX and most of the functions converted to macros or inlined
716 * directly.
717 */
718 typedef struct ssl_hmac_st {
719 EVP_MAC_CTX *ctx;
720 # ifndef OPENSSL_NO_DEPRECATED_3_0
721 HMAC_CTX *old_ctx;
722 # endif
723 } SSL_HMAC;
724
725 SSL_HMAC *ssl_hmac_new(const SSL_CTX *ctx);
726 void ssl_hmac_free(SSL_HMAC *ctx);
727 # ifndef OPENSSL_NO_DEPRECATED_3_0
728 HMAC_CTX *ssl_hmac_get0_HMAC_CTX(SSL_HMAC *ctx);
729 # endif
730 EVP_MAC_CTX *ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC *ctx);
731 int ssl_hmac_init(SSL_HMAC *ctx, void *key, size_t len, char *md);
732 int ssl_hmac_update(SSL_HMAC *ctx, const unsigned char *data, size_t len);
733 int ssl_hmac_final(SSL_HMAC *ctx, unsigned char *md, size_t *len,
734 size_t max_size);
735 size_t ssl_hmac_size(const SSL_HMAC *ctx);
736
737 int ssl_get_EC_curve_nid(const EVP_PKEY *pkey);
738 __owur int tls13_set_encoded_pub_key(EVP_PKEY *pkey,
739 const unsigned char *enckey,
740 size_t enckeylen);
741
742 typedef struct tls_group_info_st {
743 char *tlsname; /* Curve Name as in TLS specs */
744 char *realname; /* Curve Name according to provider */
745 char *algorithm; /* Algorithm name to fetch */
746 unsigned int secbits; /* Bits of security (from SP800-57) */
747 uint16_t group_id; /* Group ID */
748 int mintls; /* Minimum TLS version, -1 unsupported */
749 int maxtls; /* Maximum TLS version (or 0 for undefined) */
750 int mindtls; /* Minimum DTLS version, -1 unsupported */
751 int maxdtls; /* Maximum DTLS version (or 0 for undefined) */
752 char is_kem; /* Mode for this Group: 0 is KEX, 1 is KEM */
753 } TLS_GROUP_INFO;
754
755 typedef struct tls_sigalg_info_st {
756 char *name; /* name as in IANA TLS specs */
757 uint16_t code_point; /* IANA-specified code point of sigalg-name */
758 char *sigalg_name; /* (combined) sigalg name */
759 char *sigalg_oid; /* (combined) sigalg OID */
760 char *sig_name; /* pure signature algorithm name */
761 char *sig_oid; /* pure signature algorithm OID */
762 char *hash_name; /* hash algorithm name */
763 char *hash_oid; /* hash algorithm OID */
764 char *keytype; /* keytype name */
765 char *keytype_oid; /* keytype OID */
766 unsigned int secbits; /* Bits of security (from SP800-57) */
767 int mintls; /* Minimum TLS version, -1 unsupported */
768 int maxtls; /* Maximum TLS version (or 0 for undefined) */
769 } TLS_SIGALG_INFO;
770
771 /*
772 * Structure containing table entry of certificate info corresponding to
773 * CERT_PKEY entries
774 */
775 typedef struct {
776 int nid; /* NID of public key algorithm */
777 uint32_t amask; /* authmask corresponding to key type */
778 } SSL_CERT_LOOKUP;
779
780 /* flags values */
781 # define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */
782 # define TLS_GROUP_CURVE_PRIME 0x00000001U
783 # define TLS_GROUP_CURVE_CHAR2 0x00000002U
784 # define TLS_GROUP_CURVE_CUSTOM 0x00000004U
785 # define TLS_GROUP_FFDHE 0x00000008U
786 # define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U
787
788 # define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3)
789
790 struct ssl_ctx_st {
791 OSSL_LIB_CTX *libctx;
792
793 const SSL_METHOD *method;
794 STACK_OF(SSL_CIPHER) *cipher_list;
795 /* same as above but sorted for lookup */
796 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
797 /* TLSv1.3 specific ciphersuites */
798 STACK_OF(SSL_CIPHER) *tls13_ciphersuites;
799 struct x509_store_st /* X509_STORE */ *cert_store;
800 LHASH_OF(SSL_SESSION) *sessions;
801 /*
802 * Most session-ids that will be cached, default is
803 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
804 */
805 size_t session_cache_size;
806 struct ssl_session_st *session_cache_head;
807 struct ssl_session_st *session_cache_tail;
808 /*
809 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
810 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
811 * means only SSL_accept will cache SSL_SESSIONS.
812 */
813 uint32_t session_cache_mode;
814 /*
815 * If timeout is not 0, it is the default timeout value set when
816 * SSL_new() is called. This has been put in to make life easier to set
817 * things up
818 */
819 OSSL_TIME session_timeout;
820 /*
821 * If this callback is not null, it will be called each time a session id
822 * is added to the cache. If this function returns 1, it means that the
823 * callback will do a SSL_SESSION_free() when it has finished using it.
824 * Otherwise, on 0, it means the callback has finished with it. If
825 * remove_session_cb is not null, it will be called when a session-id is
826 * removed from the cache. After the call, OpenSSL will
827 * SSL_SESSION_free() it.
828 */
829 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
830 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
831 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
832 const unsigned char *data, int len,
833 int *copy);
834 struct {
835 TSAN_QUALIFIER int sess_connect; /* SSL new conn - started */
836 TSAN_QUALIFIER int sess_connect_renegotiate; /* SSL reneg - requested */
837 TSAN_QUALIFIER int sess_connect_good; /* SSL new conne/reneg - finished */
838 TSAN_QUALIFIER int sess_accept; /* SSL new accept - started */
839 TSAN_QUALIFIER int sess_accept_renegotiate; /* SSL reneg - requested */
840 TSAN_QUALIFIER int sess_accept_good; /* SSL accept/reneg - finished */
841 TSAN_QUALIFIER int sess_miss; /* session lookup misses */
842 TSAN_QUALIFIER int sess_timeout; /* reuse attempt on timeouted session */
843 TSAN_QUALIFIER int sess_cache_full; /* session removed due to full cache */
844 TSAN_QUALIFIER int sess_hit; /* session reuse actually done */
845 TSAN_QUALIFIER int sess_cb_hit; /* session-id that was not in
846 * the cache was passed back via
847 * the callback. This indicates
848 * that the application is
849 * supplying session-id's from
850 * other processes - spooky
851 * :-) */
852 } stats;
853 #ifdef TSAN_REQUIRES_LOCKING
854 CRYPTO_RWLOCK *tsan_lock;
855 #endif
856
857 CRYPTO_REF_COUNT references;
858
859 /* if defined, these override the X509_verify_cert() calls */
860 int (*app_verify_callback) (X509_STORE_CTX *, void *);
861 void *app_verify_arg;
862 /*
863 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
864 * ('app_verify_callback' was called with just one argument)
865 */
866
867 /* Default password callback. */
868 pem_password_cb *default_passwd_callback;
869
870 /* Default password callback user data. */
871 void *default_passwd_callback_userdata;
872
873 /* get client cert callback */
874 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
875
876 /* cookie generate callback */
877 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
878 unsigned int *cookie_len);
879
880 /* verify cookie callback */
881 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
882 unsigned int cookie_len);
883
884 /* TLS1.3 app-controlled cookie generate callback */
885 int (*gen_stateless_cookie_cb) (SSL *ssl, unsigned char *cookie,
886 size_t *cookie_len);
887
888 /* TLS1.3 verify app-controlled cookie callback */
889 int (*verify_stateless_cookie_cb) (SSL *ssl, const unsigned char *cookie,
890 size_t cookie_len);
891
892 CRYPTO_EX_DATA ex_data;
893
894 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
895 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3-sha1' */
896
897 STACK_OF(X509) *extra_certs;
898 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
899
900 /* Default values used when no per-SSL value is defined follow */
901
902 /* used if SSL's info_callback is NULL */
903 void (*info_callback) (const SSL *ssl, int type, int val);
904
905 /*
906 * What we put in certificate_authorities extension for TLS 1.3
907 * (ClientHello and CertificateRequest) or just client cert requests for
908 * earlier versions. If client_ca_names is populated then it is only used
909 * for client cert requests, and in preference to ca_names.
910 */
911 STACK_OF(X509_NAME) *ca_names;
912 STACK_OF(X509_NAME) *client_ca_names;
913
914 /*
915 * Default values to use in SSL structures follow (these are copied by
916 * SSL_new)
917 */
918
919 uint64_t options;
920 uint32_t mode;
921 int min_proto_version;
922 int max_proto_version;
923 size_t max_cert_list;
924
925 struct cert_st /* CERT */ *cert;
926 SSL_CERT_LOOKUP *ssl_cert_info;
927 int read_ahead;
928
929 /* callback that allows applications to peek at protocol messages */
930 ossl_msg_cb msg_callback;
931 void *msg_callback_arg;
932
933 uint32_t verify_mode;
934 size_t sid_ctx_length;
935 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
936 /* called 'verify_callback' in the SSL */
937 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
938
939 /* Default generate session ID callback. */
940 GEN_SESSION_CB generate_session_id;
941
942 X509_VERIFY_PARAM *param;
943
944 int quiet_shutdown;
945
946 # ifndef OPENSSL_NO_CT
947 CTLOG_STORE *ctlog_store; /* CT Log Store */
948 /*
949 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
950 * If they are not, the connection should be aborted.
951 */
952 ssl_ct_validation_cb ct_validation_callback;
953 void *ct_validation_callback_arg;
954 # endif
955
956 /*
957 * If we're using more than one pipeline how should we divide the data
958 * up between the pipes?
959 */
960 size_t split_send_fragment;
961 /*
962 * Maximum amount of data to send in one fragment. actual record size can
963 * be more than this due to padding and MAC overheads.
964 */
965 size_t max_send_fragment;
966
967 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
968 size_t max_pipelines;
969
970 /* The default read buffer length to use (0 means not set) */
971 size_t default_read_buf_len;
972
973 # ifndef OPENSSL_NO_ENGINE
974 /*
975 * Engine to pass requests for client certs to
976 */
977 ENGINE *client_cert_engine;
978 # endif
979
980 /* ClientHello callback. Mostly for extensions, but not entirely. */
981 SSL_client_hello_cb_fn client_hello_cb;
982 void *client_hello_cb_arg;
983
984 /* TLS extensions. */
985 struct {
986 /* TLS extensions servername callback */
987 int (*servername_cb) (SSL *, int *, void *);
988 void *servername_arg;
989 /* RFC 4507 session ticket keys */
990 unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH];
991 SSL_CTX_EXT_SECURE *secure;
992 # ifndef OPENSSL_NO_DEPRECATED_3_0
993 /* Callback to support customisation of ticket key setting */
994 int (*ticket_key_cb) (SSL *ssl,
995 unsigned char *name, unsigned char *iv,
996 EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc);
997 #endif
998 int (*ticket_key_evp_cb) (SSL *ssl,
999 unsigned char *name, unsigned char *iv,
1000 EVP_CIPHER_CTX *ectx, EVP_MAC_CTX *hctx,
1001 int enc);
1002
1003 /* certificate status request info */
1004 /* Callback for status request */
1005 int (*status_cb) (SSL *ssl, void *arg);
1006 void *status_arg;
1007 /* ext status type used for CSR extension (OCSP Stapling) */
1008 int status_type;
1009 /* RFC 4366 Maximum Fragment Length Negotiation */
1010 uint8_t max_fragment_len_mode;
1011
1012 /* EC extension values inherited by SSL structure */
1013 size_t ecpointformats_len;
1014 unsigned char *ecpointformats;
1015
1016 size_t supportedgroups_len;
1017 uint16_t *supportedgroups;
1018
1019 uint16_t *supported_groups_default;
1020 size_t supported_groups_default_len;
1021 /*
1022 * ALPN information (we are in the process of transitioning from NPN to
1023 * ALPN.)
1024 */
1025
1026 /*-
1027 * For a server, this contains a callback function that allows the
1028 * server to select the protocol for the connection.
1029 * out: on successful return, this must point to the raw protocol
1030 * name (without the length prefix).
1031 * outlen: on successful return, this contains the length of |*out|.
1032 * in: points to the client's list of supported protocols in
1033 * wire-format.
1034 * inlen: the length of |in|.
1035 */
1036 int (*alpn_select_cb) (SSL *s,
1037 const unsigned char **out,
1038 unsigned char *outlen,
1039 const unsigned char *in,
1040 unsigned int inlen, void *arg);
1041 void *alpn_select_cb_arg;
1042
1043 /*
1044 * For a client, this contains the list of supported protocols in wire
1045 * format.
1046 */
1047 unsigned char *alpn;
1048 size_t alpn_len;
1049
1050 # ifndef OPENSSL_NO_NEXTPROTONEG
1051 /* Next protocol negotiation information */
1052
1053 /*
1054 * For a server, this contains a callback function by which the set of
1055 * advertised protocols can be provided.
1056 */
1057 SSL_CTX_npn_advertised_cb_func npn_advertised_cb;
1058 void *npn_advertised_cb_arg;
1059 /*
1060 * For a client, this contains a callback function that selects the next
1061 * protocol from the list provided by the server.
1062 */
1063 SSL_CTX_npn_select_cb_func npn_select_cb;
1064 void *npn_select_cb_arg;
1065 # endif
1066
1067 unsigned char cookie_hmac_key[SHA256_DIGEST_LENGTH];
1068 } ext;
1069
1070 # ifndef OPENSSL_NO_PSK
1071 SSL_psk_client_cb_func psk_client_callback;
1072 SSL_psk_server_cb_func psk_server_callback;
1073 # endif
1074 SSL_psk_find_session_cb_func psk_find_session_cb;
1075 SSL_psk_use_session_cb_func psk_use_session_cb;
1076
1077 # ifndef OPENSSL_NO_SRP
1078 SRP_CTX srp_ctx; /* ctx for SRP authentication */
1079 # endif
1080
1081 /* Shared DANE context */
1082 struct dane_ctx_st dane;
1083
1084 # ifndef OPENSSL_NO_SRTP
1085 /* SRTP profiles we are willing to do from RFC 5764 */
1086 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1087 # endif
1088 /*
1089 * Callback for disabling session caching and ticket support on a session
1090 * basis, depending on the chosen cipher.
1091 */
1092 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1093
1094 CRYPTO_RWLOCK *lock;
1095
1096 /*
1097 * Callback for logging key material for use with debugging tools like
1098 * Wireshark. The callback should log `line` followed by a newline.
1099 */
1100 SSL_CTX_keylog_cb_func keylog_callback;
1101
1102 /*
1103 * The maximum number of bytes advertised in session tickets that can be
1104 * sent as early data.
1105 */
1106 uint32_t max_early_data;
1107
1108 /*
1109 * The maximum number of bytes of early data that a server will tolerate
1110 * (which should be at least as much as max_early_data).
1111 */
1112 uint32_t recv_max_early_data;
1113
1114 /* TLS1.3 padding callback */
1115 size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg);
1116 void *record_padding_arg;
1117 size_t block_padding;
1118 size_t hs_padding;
1119
1120 /* Session ticket appdata */
1121 SSL_CTX_generate_session_ticket_fn generate_ticket_cb;
1122 SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb;
1123 void *ticket_cb_data;
1124
1125 /* The number of TLS1.3 tickets to automatically send */
1126 size_t num_tickets;
1127
1128 /* Callback to determine if early_data is acceptable or not */
1129 SSL_allow_early_data_cb_fn allow_early_data_cb;
1130 void *allow_early_data_cb_data;
1131
1132 /* Do we advertise Post-handshake auth support? */
1133 int pha_enabled;
1134
1135 /* Callback for SSL async handling */
1136 SSL_async_callback_fn async_cb;
1137 void *async_cb_arg;
1138
1139 char *propq;
1140
1141 int ssl_mac_pkey_id[SSL_MD_NUM_IDX];
1142 const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX];
1143 const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX];
1144 size_t ssl_mac_secret_size[SSL_MD_NUM_IDX];
1145
1146 size_t tls12_sigalgs_len;
1147 /* Cache of all sigalgs we know and whether they are available or not */
1148 struct sigalg_lookup_st *sigalg_lookup_cache;
1149 /* List of all sigalgs (code points) available, incl. from providers */
1150 uint16_t *tls12_sigalgs;
1151
1152 TLS_GROUP_INFO *group_list;
1153 size_t group_list_len;
1154 size_t group_list_max_len;
1155
1156 TLS_SIGALG_INFO *sigalg_list;
1157 size_t sigalg_list_len;
1158 size_t sigalg_list_max_len;
1159
1160 /* masks of disabled algorithms */
1161 uint32_t disabled_enc_mask;
1162 uint32_t disabled_mac_mask;
1163 uint32_t disabled_mkey_mask;
1164 uint32_t disabled_auth_mask;
1165
1166 #ifndef OPENSSL_NO_COMP_ALG
1167 /* certificate compression preferences */
1168 int cert_comp_prefs[TLSEXT_comp_cert_limit];
1169 #endif
1170
1171 /* Certificate Type stuff - for RPK vs X.509 */
1172 unsigned char *client_cert_type;
1173 size_t client_cert_type_len;
1174 unsigned char *server_cert_type;
1175 size_t server_cert_type_len;
1176
1177 # ifndef OPENSSL_NO_QLOG
1178 char *qlog_title; /* Session title for qlog */
1179 # endif
1180 };
1181
1182 typedef struct cert_pkey_st CERT_PKEY;
1183
1184 #define SSL_TYPE_SSL_CONNECTION 0
1185 #define SSL_TYPE_QUIC_CONNECTION 1
1186 #define SSL_TYPE_QUIC_XSO 2
1187
1188 struct ssl_st {
1189 int type;
1190 SSL_CTX *ctx;
1191 const SSL_METHOD *defltmeth;
1192 const SSL_METHOD *method;
1193 CRYPTO_REF_COUNT references;
1194 CRYPTO_RWLOCK *lock;
1195 /* extra application data */
1196 CRYPTO_EX_DATA ex_data;
1197 };
1198
1199 struct ssl_connection_st {
1200 /* type identifier and common data */
1201 struct ssl_st ssl;
1202 /*
1203 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
1204 * DTLS1_VERSION)
1205 */
1206 int version;
1207 /*
1208 * There are 2 BIO's even though they are normally both the same. This
1209 * is so data can be read and written to different handlers
1210 */
1211 /* used by SSL_read */
1212 BIO *rbio;
1213 /* used by SSL_write */
1214 BIO *wbio;
1215 /* used during session-id reuse to concatenate messages */
1216 BIO *bbio;
1217 /*
1218 * This holds a variable that indicates what we were doing when a 0 or -1
1219 * is returned. This is needed for non-blocking IO so we know what
1220 * request needs re-doing when in SSL_accept or SSL_connect
1221 */
1222 int rwstate;
1223 int (*handshake_func) (SSL *);
1224 /*
1225 * Imagine that here's a boolean member "init" that is switched as soon
1226 * as SSL_set_{accept/connect}_state is called for the first time, so
1227 * that "state" and "handshake_func" are properly initialized. But as
1228 * handshake_func is == 0 until then, we use this test instead of an
1229 * "init" member.
1230 */
1231 /* are we the server side? */
1232 int server;
1233 /*
1234 * Generate a new session or reuse an old one.
1235 * NB: For servers, the 'new' session may actually be a previously
1236 * cached session or even the previous session unless
1237 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1238 */
1239 int new_session;
1240 /* don't send shutdown packets */
1241 int quiet_shutdown;
1242 /* we have shut things down, 0x01 sent, 0x02 for received */
1243 int shutdown;
1244 /* Timestamps used to calculate the handshake RTT */
1245 OSSL_TIME ts_msg_write;
1246 OSSL_TIME ts_msg_read;
1247 /* where we are */
1248 OSSL_STATEM statem;
1249 SSL_EARLY_DATA_STATE early_data_state;
1250 BUF_MEM *init_buf; /* buffer used during init */
1251 void *init_msg; /* pointer to handshake message body, set by
1252 * tls_get_message_header() */
1253 size_t init_num; /* amount read/written */
1254 size_t init_off; /* amount read/written */
1255
1256 size_t ssl_pkey_num;
1257
1258 struct {
1259 long flags;
1260 unsigned char server_random[SSL3_RANDOM_SIZE];
1261 unsigned char client_random[SSL3_RANDOM_SIZE];
1262
1263 /* used during startup, digest all incoming/outgoing packets */
1264 BIO *handshake_buffer;
1265 /*
1266 * When handshake digest is determined, buffer is hashed and
1267 * freed and MD_CTX for the required digest is stored here.
1268 */
1269 EVP_MD_CTX *handshake_dgst;
1270 /*
1271 * Set whenever an expected ChangeCipherSpec message is processed.
1272 * Unset when the peer's Finished message is received.
1273 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1274 */
1275 int change_cipher_spec;
1276 int warn_alert;
1277 int fatal_alert;
1278 /*
1279 * we allow one fatal and one warning alert to be outstanding, send close
1280 * alert via the warning alert
1281 */
1282 int alert_dispatch;
1283 unsigned char send_alert[2];
1284 /*
1285 * This flag is set when we should renegotiate ASAP, basically when there
1286 * is no more data in the read or write buffers
1287 */
1288 int renegotiate;
1289 int total_renegotiations;
1290 int num_renegotiations;
1291 int in_read_app_data;
1292
1293 struct {
1294 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1295 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1296 size_t finish_md_len;
1297 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1298 size_t peer_finish_md_len;
1299 size_t message_size;
1300 int message_type;
1301 /* used to hold the new cipher we are going to use */
1302 const SSL_CIPHER *new_cipher;
1303 EVP_PKEY *pkey; /* holds short lived key exchange key */
1304 /* used for certificate requests */
1305 int cert_req;
1306 /* Certificate types in certificate request message. */
1307 uint8_t *ctype;
1308 size_t ctype_len;
1309 /* Certificate authorities list peer sent */
1310 STACK_OF(X509_NAME) *peer_ca_names;
1311 size_t key_block_length;
1312 unsigned char *key_block;
1313 const EVP_CIPHER *new_sym_enc;
1314 const EVP_MD *new_hash;
1315 int new_mac_pkey_type;
1316 size_t new_mac_secret_size;
1317 # ifndef OPENSSL_NO_COMP
1318 const SSL_COMP *new_compression;
1319 # else
1320 char *new_compression;
1321 # endif
1322 int cert_request;
1323 /* Raw values of the cipher list from a client */
1324 unsigned char *ciphers_raw;
1325 size_t ciphers_rawlen;
1326 /* Temporary storage for premaster secret */
1327 unsigned char *pms;
1328 size_t pmslen;
1329 # ifndef OPENSSL_NO_PSK
1330 /* Temporary storage for PSK key */
1331 unsigned char *psk;
1332 size_t psklen;
1333 # endif
1334 /* Signature algorithm we actually use */
1335 const struct sigalg_lookup_st *sigalg;
1336 /* Pointer to certificate we use */
1337 CERT_PKEY *cert;
1338 /*
1339 * signature algorithms peer reports: e.g. supported signature
1340 * algorithms extension for server or as part of a certificate
1341 * request for client.
1342 * Keep track of the algorithms for TLS and X.509 usage separately.
1343 */
1344 uint16_t *peer_sigalgs;
1345 uint16_t *peer_cert_sigalgs;
1346 /* Size of above arrays */
1347 size_t peer_sigalgslen;
1348 size_t peer_cert_sigalgslen;
1349 /* Sigalg peer actually uses */
1350 const struct sigalg_lookup_st *peer_sigalg;
1351 /*
1352 * Set if corresponding CERT_PKEY can be used with current
1353 * SSL session: e.g. appropriate curve, signature algorithms etc.
1354 * If zero it can't be used at all.
1355 */
1356 uint32_t *valid_flags;
1357 /*
1358 * For servers the following masks are for the key and auth algorithms
1359 * that are supported by the certs below. For clients they are masks of
1360 * *disabled* algorithms based on the current session.
1361 */
1362 uint32_t mask_k;
1363 uint32_t mask_a;
1364 /*
1365 * The following are used by the client to see if a cipher is allowed or
1366 * not. It contains the minimum and maximum version the client's using
1367 * based on what it knows so far.
1368 */
1369 int min_ver;
1370 int max_ver;
1371 } tmp;
1372
1373 /* Connection binding to prevent renegotiation attacks */
1374 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1375 size_t previous_client_finished_len;
1376 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1377 size_t previous_server_finished_len;
1378 int send_connection_binding;
1379
1380 # ifndef OPENSSL_NO_NEXTPROTONEG
1381 /*
1382 * Set if we saw the Next Protocol Negotiation extension from our peer.
1383 */
1384 int npn_seen;
1385 # endif
1386
1387 /*
1388 * ALPN information (we are in the process of transitioning from NPN to
1389 * ALPN.)
1390 */
1391
1392 /*
1393 * In a server these point to the selected ALPN protocol after the
1394 * ClientHello has been processed. In a client these contain the protocol
1395 * that the server selected once the ServerHello has been processed.
1396 */
1397 unsigned char *alpn_selected;
1398 size_t alpn_selected_len;
1399 /* used by the server to know what options were proposed */
1400 unsigned char *alpn_proposed;
1401 size_t alpn_proposed_len;
1402 /* used by the client to know if it actually sent alpn */
1403 int alpn_sent;
1404
1405 /*
1406 * This is set to true if we believe that this is a version of Safari
1407 * running on OS X 10.6 or newer. We wish to know this because Safari on
1408 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1409 */
1410 char is_probably_safari;
1411
1412 /*
1413 * Track whether we did a key exchange this handshake or not, so
1414 * SSL_get_negotiated_group() knows whether to fall back to the
1415 * value in the SSL_SESSION.
1416 */
1417 char did_kex;
1418 /* For clients: peer temporary key */
1419 /* The group_id for the key exchange key */
1420 uint16_t group_id;
1421 EVP_PKEY *peer_tmp;
1422
1423 } s3;
1424
1425 struct dtls1_state_st *d1; /* DTLSv1 variables */
1426 /* callback that allows applications to peek at protocol messages */
1427 void (*msg_callback) (int write_p, int version, int content_type,
1428 const void *buf, size_t len, SSL *ssl, void *arg);
1429 void *msg_callback_arg;
1430 int hit; /* reusing a previous session */
1431 X509_VERIFY_PARAM *param;
1432 /* Per connection DANE state */
1433 SSL_DANE dane;
1434 /* crypto */
1435 STACK_OF(SSL_CIPHER) *peer_ciphers;
1436 STACK_OF(SSL_CIPHER) *cipher_list;
1437 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1438 /* TLSv1.3 specific ciphersuites */
1439 STACK_OF(SSL_CIPHER) *tls13_ciphersuites;
1440 /*
1441 * These are the ones being used, the ones in SSL_SESSION are the ones to
1442 * be 'copied' into these ones
1443 */
1444 uint32_t mac_flags;
1445 /*
1446 * The TLS1.3 secrets.
1447 */
1448 unsigned char early_secret[EVP_MAX_MD_SIZE];
1449 unsigned char handshake_secret[EVP_MAX_MD_SIZE];
1450 unsigned char master_secret[EVP_MAX_MD_SIZE];
1451 unsigned char resumption_master_secret[EVP_MAX_MD_SIZE];
1452 unsigned char client_finished_secret[EVP_MAX_MD_SIZE];
1453 unsigned char server_finished_secret[EVP_MAX_MD_SIZE];
1454 unsigned char server_finished_hash[EVP_MAX_MD_SIZE];
1455 unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE];
1456 unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE];
1457 unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE];
1458 unsigned char exporter_master_secret[EVP_MAX_MD_SIZE];
1459 unsigned char early_exporter_master_secret[EVP_MAX_MD_SIZE];
1460
1461 /* session info */
1462 /* client cert? */
1463 /* This is used to hold the server certificate used */
1464 struct cert_st /* CERT */ *cert;
1465
1466 /*
1467 * The hash of all messages prior to the CertificateVerify, and the length
1468 * of that hash.
1469 */
1470 unsigned char cert_verify_hash[EVP_MAX_MD_SIZE];
1471 size_t cert_verify_hash_len;
1472
1473 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1474 enum {SSL_HRR_NONE = 0, SSL_HRR_PENDING, SSL_HRR_COMPLETE}
1475 hello_retry_request;
1476
1477 /*
1478 * the session_id_context is used to ensure sessions are only reused in
1479 * the appropriate context
1480 */
1481 size_t sid_ctx_length;
1482 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1483 /* This can also be in the session once a session is established */
1484 SSL_SESSION *session;
1485 /* TLSv1.3 PSK session */
1486 SSL_SESSION *psksession;
1487 unsigned char *psksession_id;
1488 size_t psksession_id_len;
1489 /* Default generate session ID callback. */
1490 GEN_SESSION_CB generate_session_id;
1491 /*
1492 * The temporary TLSv1.3 session id. This isn't really a session id at all
1493 * but is a random value sent in the legacy session id field.
1494 */
1495 unsigned char tmp_session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
1496 size_t tmp_session_id_len;
1497 /* Used in SSL3 */
1498 /*
1499 * 0 don't care about verify failure.
1500 * 1 fail if verify fails
1501 */
1502 uint32_t verify_mode;
1503 /* fail if callback returns 0 */
1504 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1505 /* optional informational callback */
1506 void (*info_callback) (const SSL *ssl, int type, int val);
1507 /* error bytes to be written */
1508 int error;
1509 /* actual code */
1510 int error_code;
1511 # ifndef OPENSSL_NO_PSK
1512 SSL_psk_client_cb_func psk_client_callback;
1513 SSL_psk_server_cb_func psk_server_callback;
1514 # endif
1515 SSL_psk_find_session_cb_func psk_find_session_cb;
1516 SSL_psk_use_session_cb_func psk_use_session_cb;
1517
1518 /* Verified chain of peer */
1519 STACK_OF(X509) *verified_chain;
1520 long verify_result;
1521 /*
1522 * What we put in certificate_authorities extension for TLS 1.3
1523 * (ClientHello and CertificateRequest) or just client cert requests for
1524 * earlier versions. If client_ca_names is populated then it is only used
1525 * for client cert requests, and in preference to ca_names.
1526 */
1527 STACK_OF(X509_NAME) *ca_names;
1528 STACK_OF(X509_NAME) *client_ca_names;
1529 /* protocol behaviour */
1530 uint64_t options;
1531 /* API behaviour */
1532 uint32_t mode;
1533 int min_proto_version;
1534 int max_proto_version;
1535 size_t max_cert_list;
1536 int first_packet;
1537 /*
1538 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1539 * secret and SSLv3/TLS (<=1.2) rollback check
1540 */
1541 int client_version;
1542 /*
1543 * If we're using more than one pipeline how should we divide the data
1544 * up between the pipes?
1545 */
1546 size_t split_send_fragment;
1547 /*
1548 * Maximum amount of data to send in one fragment. actual record size can
1549 * be more than this due to padding and MAC overheads.
1550 */
1551 size_t max_send_fragment;
1552 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
1553 size_t max_pipelines;
1554
1555 struct {
1556 /* Built-in extension flags */
1557 uint8_t extflags[TLSEXT_IDX_num_builtins];
1558 /* TLS extension debug callback */
1559 void (*debug_cb)(SSL *s, int client_server, int type,
1560 const unsigned char *data, int len, void *arg);
1561 void *debug_arg;
1562 char *hostname;
1563 /* certificate status request info */
1564 /* Status type or -1 if no status type */
1565 int status_type;
1566 /* Raw extension data, if seen */
1567 unsigned char *scts;
1568 /* Length of raw extension data, if seen */
1569 uint16_t scts_len;
1570 /* Expect OCSP CertificateStatus message */
1571 int status_expected;
1572
1573 struct {
1574 /* OCSP status request only */
1575 STACK_OF(OCSP_RESPID) *ids;
1576 X509_EXTENSIONS *exts;
1577 /* OCSP response received or to be sent */
1578 unsigned char *resp;
1579 size_t resp_len;
1580 } ocsp;
1581
1582 /* RFC4507 session ticket expected to be received or sent */
1583 int ticket_expected;
1584 /* TLS 1.3 tickets requested by the application. */
1585 int extra_tickets_expected;
1586 size_t ecpointformats_len;
1587 /* our list */
1588 unsigned char *ecpointformats;
1589
1590 size_t peer_ecpointformats_len;
1591 /* peer's list */
1592 unsigned char *peer_ecpointformats;
1593 size_t supportedgroups_len;
1594 /* our list */
1595 uint16_t *supportedgroups;
1596
1597 size_t peer_supportedgroups_len;
1598 /* peer's list */
1599 uint16_t *peer_supportedgroups;
1600
1601 /* TLS Session Ticket extension override */
1602 TLS_SESSION_TICKET_EXT *session_ticket;
1603 /* TLS Session Ticket extension callback */
1604 tls_session_ticket_ext_cb_fn session_ticket_cb;
1605 void *session_ticket_cb_arg;
1606 /* TLS pre-shared secret session resumption */
1607 tls_session_secret_cb_fn session_secret_cb;
1608 void *session_secret_cb_arg;
1609 /*
1610 * For a client, this contains the list of supported protocols in wire
1611 * format.
1612 */
1613 unsigned char *alpn;
1614 size_t alpn_len;
1615 /*
1616 * Next protocol negotiation. For the client, this is the protocol that
1617 * we sent in NextProtocol and is set when handling ServerHello
1618 * extensions. For a server, this is the client's selected_protocol from
1619 * NextProtocol and is set when handling the NextProtocol message, before
1620 * the Finished message.
1621 */
1622 unsigned char *npn;
1623 size_t npn_len;
1624
1625 /* The available PSK key exchange modes */
1626 int psk_kex_mode;
1627
1628 /* Set to one if we have negotiated ETM */
1629 int use_etm;
1630
1631 /* Are we expecting to receive early data? */
1632 int early_data;
1633 /* Is the session suitable for early data? */
1634 int early_data_ok;
1635
1636 /* May be sent by a server in HRR. Must be echoed back in ClientHello */
1637 unsigned char *tls13_cookie;
1638 size_t tls13_cookie_len;
1639 /* Have we received a cookie from the client? */
1640 int cookieok;
1641
1642 /*
1643 * Maximum Fragment Length as per RFC 4366.
1644 * If this member contains one of the allowed values (1-4)
1645 * then we should include Maximum Fragment Length Negotiation
1646 * extension in Client Hello.
1647 * Please note that value of this member does not have direct
1648 * effect. The actual (binding) value is stored in SSL_SESSION,
1649 * as this extension is optional on server side.
1650 */
1651 uint8_t max_fragment_len_mode;
1652
1653 /*
1654 * On the client side the number of ticket identities we sent in the
1655 * ClientHello. On the server side the identity of the ticket we
1656 * selected.
1657 */
1658 int tick_identity;
1659
1660 /* This is the list of algorithms the peer supports that we also support */
1661 int compress_certificate_from_peer[TLSEXT_comp_cert_limit];
1662 /* indicate that we sent the extension, so we'll accept it */
1663 int compress_certificate_sent;
1664
1665 uint8_t client_cert_type;
1666 uint8_t client_cert_type_ctos;
1667 uint8_t server_cert_type;
1668 uint8_t server_cert_type_ctos;
1669 } ext;
1670
1671 /*
1672 * Parsed form of the ClientHello, kept around across client_hello_cb
1673 * calls.
1674 */
1675 CLIENTHELLO_MSG *clienthello;
1676
1677 /*-
1678 * no further mod of servername
1679 * 0 : call the servername extension callback.
1680 * 1 : prepare 2, allow last ack just after in server callback.
1681 * 2 : don't call servername callback, no ack in server hello
1682 */
1683 int servername_done;
1684 # ifndef OPENSSL_NO_CT
1685 /*
1686 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1687 * If they are not, the connection should be aborted.
1688 */
1689 ssl_ct_validation_cb ct_validation_callback;
1690 /* User-supplied argument that is passed to the ct_validation_callback */
1691 void *ct_validation_callback_arg;
1692 /*
1693 * Consolidated stack of SCTs from all sources.
1694 * Lazily populated by CT_get_peer_scts(SSL*)
1695 */
1696 STACK_OF(SCT) *scts;
1697 /* Have we attempted to find/parse SCTs yet? */
1698 int scts_parsed;
1699 # endif
1700 SSL_CTX *session_ctx; /* initial ctx, used to store sessions */
1701 # ifndef OPENSSL_NO_SRTP
1702 /* What we'll do */
1703 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1704 /* What's been chosen */
1705 SRTP_PROTECTION_PROFILE *srtp_profile;
1706 # endif
1707 /*-
1708 * 1 if we are renegotiating.
1709 * 2 if we are a server and are inside a handshake
1710 * (i.e. not just sending a HelloRequest)
1711 */
1712 int renegotiate;
1713 /* If sending a KeyUpdate is pending */
1714 int key_update;
1715 /* Post-handshake authentication state */
1716 SSL_PHA_STATE post_handshake_auth;
1717 int pha_enabled;
1718 uint8_t* pha_context;
1719 size_t pha_context_len;
1720 int certreqs_sent;
1721 EVP_MD_CTX *pha_dgst; /* this is just the digest through ClientFinished */
1722
1723 # ifndef OPENSSL_NO_SRP
1724 /* ctx for SRP authentication */
1725 SRP_CTX srp_ctx;
1726 # endif
1727 /*
1728 * Callback for disabling session caching and ticket support on a session
1729 * basis, depending on the chosen cipher.
1730 */
1731 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1732
1733 /* Record layer data */
1734 RECORD_LAYER rlayer;
1735
1736 /* Default password callback. */
1737 pem_password_cb *default_passwd_callback;
1738 /* Default password callback user data. */
1739 void *default_passwd_callback_userdata;
1740 /* Async Job info */
1741 ASYNC_JOB *job;
1742 ASYNC_WAIT_CTX *waitctx;
1743 size_t asyncrw;
1744
1745 /*
1746 * The maximum number of bytes advertised in session tickets that can be
1747 * sent as early data.
1748 */
1749 uint32_t max_early_data;
1750 /*
1751 * The maximum number of bytes of early data that a server will tolerate
1752 * (which should be at least as much as max_early_data).
1753 */
1754 uint32_t recv_max_early_data;
1755
1756 /*
1757 * The number of bytes of early data received so far. If we accepted early
1758 * data then this is a count of the plaintext bytes. If we rejected it then
1759 * this is a count of the ciphertext bytes.
1760 */
1761 uint32_t early_data_count;
1762
1763 /* The number of TLS1.3 tickets to automatically send */
1764 size_t num_tickets;
1765 /* The number of TLS1.3 tickets actually sent so far */
1766 size_t sent_tickets;
1767 /* The next nonce value to use when we send a ticket on this connection */
1768 uint64_t next_ticket_nonce;
1769
1770 /* Callback to determine if early_data is acceptable or not */
1771 SSL_allow_early_data_cb_fn allow_early_data_cb;
1772 void *allow_early_data_cb_data;
1773
1774 /* Callback for SSL async handling */
1775 SSL_async_callback_fn async_cb;
1776 void *async_cb_arg;
1777
1778 /*
1779 * Signature algorithms shared by client and server: cached because these
1780 * are used most often.
1781 */
1782 const struct sigalg_lookup_st **shared_sigalgs;
1783 size_t shared_sigalgslen;
1784
1785 #ifndef OPENSSL_NO_COMP_ALG
1786 /* certificate compression preferences */
1787 int cert_comp_prefs[TLSEXT_comp_cert_limit];
1788 #endif
1789
1790 /* Certificate Type stuff - for RPK vs X.509 */
1791 unsigned char *client_cert_type;
1792 size_t client_cert_type_len;
1793 unsigned char *server_cert_type;
1794 size_t server_cert_type_len;
1795 };
1796
1797 # define SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, c) \
1798 ((ssl) == NULL ? NULL \
1799 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1800 ? (c SSL_CONNECTION *)(ssl) \
1801 : NULL))
1802 # define SSL_CONNECTION_NO_CONST
1803 # define SSL_CONNECTION_FROM_SSL_ONLY(ssl) \
1804 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1805 # define SSL_CONNECTION_FROM_CONST_SSL_ONLY(ssl) \
1806 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1807 # define SSL_CONNECTION_GET_CTX(sc) ((sc)->ssl.ctx)
1808 # define SSL_CONNECTION_GET_SSL(sc) (&(sc)->ssl)
1809 # ifndef OPENSSL_NO_QUIC
1810 # include "quic/quic_local.h"
1811 # define SSL_CONNECTION_FROM_SSL_int(ssl, c) \
1812 ((ssl) == NULL ? NULL \
1813 : ((ssl)->type == SSL_TYPE_SSL_CONNECTION \
1814 ? (c SSL_CONNECTION *)(ssl) \
1815 : ((ssl)->type == SSL_TYPE_QUIC_CONNECTION \
1816 ? (c SSL_CONNECTION *)((c QUIC_CONNECTION *)(ssl))->tls \
1817 : NULL)))
1818 # define SSL_CONNECTION_FROM_SSL(ssl) \
1819 SSL_CONNECTION_FROM_SSL_int(ssl, SSL_CONNECTION_NO_CONST)
1820 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1821 SSL_CONNECTION_FROM_SSL_int(ssl, const)
1822 # else
1823 # define SSL_CONNECTION_FROM_SSL(ssl) \
1824 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, SSL_CONNECTION_NO_CONST)
1825 # define SSL_CONNECTION_FROM_CONST_SSL(ssl) \
1826 SSL_CONNECTION_FROM_SSL_ONLY_int(ssl, const)
1827 # endif
1828
1829 /*
1830 * Structure containing table entry of values associated with the signature
1831 * algorithms (signature scheme) extension
1832 */
1833 typedef struct sigalg_lookup_st {
1834 /* TLS 1.3 signature scheme name */
1835 const char *name;
1836 /* Raw value used in extension */
1837 uint16_t sigalg;
1838 /* NID of hash algorithm or NID_undef if no hash */
1839 int hash;
1840 /* Index of hash algorithm or -1 if no hash algorithm */
1841 int hash_idx;
1842 /* NID of signature algorithm */
1843 int sig;
1844 /* Index of signature algorithm */
1845 int sig_idx;
1846 /* Combined hash and signature NID, if any */
1847 int sigandhash;
1848 /* Required public key curve (ECDSA only) */
1849 int curve;
1850 /* Whether this signature algorithm is actually available for use */
1851 int enabled;
1852 } SIGALG_LOOKUP;
1853
1854 /* DTLS structures */
1855
1856 # ifndef OPENSSL_NO_SCTP
1857 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1858 # endif
1859
1860 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1861 # define DTLS1_MAX_MTU_OVERHEAD 48
1862
1863 struct dtls1_retransmit_state {
1864 const OSSL_RECORD_METHOD *wrlmethod;
1865 OSSL_RECORD_LAYER *wrl;
1866 };
1867
1868 struct hm_header_st {
1869 unsigned char type;
1870 size_t msg_len;
1871 unsigned short seq;
1872 size_t frag_off;
1873 size_t frag_len;
1874 unsigned int is_ccs;
1875 struct dtls1_retransmit_state saved_retransmit_state;
1876 };
1877
1878 typedef struct hm_fragment_st {
1879 struct hm_header_st msg_header;
1880 unsigned char *fragment;
1881 unsigned char *reassembly;
1882 } hm_fragment;
1883
1884 typedef struct pqueue_st pqueue;
1885 typedef struct pitem_st pitem;
1886
1887 struct pitem_st {
1888 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1889 void *data;
1890 pitem *next;
1891 };
1892
1893 typedef struct pitem_st *piterator;
1894
1895 pitem *pitem_new(unsigned char *prio64be, void *data);
1896 void pitem_free(pitem *item);
1897 pqueue *pqueue_new(void);
1898 void pqueue_free(pqueue *pq);
1899 pitem *pqueue_insert(pqueue *pq, pitem *item);
1900 pitem *pqueue_peek(pqueue *pq);
1901 pitem *pqueue_pop(pqueue *pq);
1902 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1903 pitem *pqueue_iterator(pqueue *pq);
1904 pitem *pqueue_next(piterator *iter);
1905 size_t pqueue_size(pqueue *pq);
1906
1907 typedef struct dtls1_state_st {
1908 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1909 size_t cookie_len;
1910 unsigned int cookie_verified;
1911 /* handshake message numbers */
1912 unsigned short handshake_write_seq;
1913 unsigned short next_handshake_write_seq;
1914 unsigned short handshake_read_seq;
1915 /* Buffered handshake messages */
1916 pqueue *buffered_messages;
1917 /* Buffered (sent) handshake records */
1918 pqueue *sent_messages;
1919 size_t link_mtu; /* max on-the-wire DTLS packet size */
1920 size_t mtu; /* max DTLS packet size */
1921 struct hm_header_st w_msg_hdr;
1922 struct hm_header_st r_msg_hdr;
1923 /* Number of alerts received so far */
1924 unsigned int timeout_num_alerts;
1925 /*
1926 * Indicates when the last handshake msg sent will timeout
1927 */
1928 OSSL_TIME next_timeout;
1929 /* Timeout duration */
1930 unsigned int timeout_duration_us;
1931
1932 unsigned int retransmitting;
1933 # ifndef OPENSSL_NO_SCTP
1934 int shutdown_received;
1935 # endif
1936
1937 DTLS_timer_cb timer_cb;
1938
1939 } DTLS1_STATE;
1940
1941 /*
1942 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1943 */
1944 # define EXPLICIT_PRIME_CURVE_TYPE 1
1945 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1946 # define NAMED_CURVE_TYPE 3
1947
1948 # ifndef OPENSSL_NO_COMP_ALG
1949 struct ossl_comp_cert_st {
1950 unsigned char *data;
1951 size_t len;
1952 size_t orig_len;
1953 CRYPTO_REF_COUNT references;
1954 int alg;
1955 };
1956 typedef struct ossl_comp_cert_st OSSL_COMP_CERT;
1957
1958 void OSSL_COMP_CERT_free(OSSL_COMP_CERT *c);
1959 int OSSL_COMP_CERT_up_ref(OSSL_COMP_CERT *c);
1960 # endif
1961
1962 struct cert_pkey_st {
1963 X509 *x509;
1964 EVP_PKEY *privatekey;
1965 /* Chain for this certificate */
1966 STACK_OF(X509) *chain;
1967 /*-
1968 * serverinfo data for this certificate. The data is in TLS Extension
1969 * wire format, specifically it's a series of records like:
1970 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1971 * uint16_t length;
1972 * uint8_t data[length];
1973 */
1974 unsigned char *serverinfo;
1975 size_t serverinfo_length;
1976 # ifndef OPENSSL_NO_COMP_ALG
1977 /* Compressed certificate data - index 0 is unused */
1978 OSSL_COMP_CERT *comp_cert[TLSEXT_comp_cert_limit];
1979 int cert_comp_used;
1980 # endif
1981 };
1982 /* Retrieve Suite B flags */
1983 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1984 /* Uses to check strict mode: suite B modes are always strict */
1985 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1986 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1987
1988 typedef enum {
1989 ENDPOINT_CLIENT = 0,
1990 ENDPOINT_SERVER,
1991 ENDPOINT_BOTH
1992 } ENDPOINT;
1993
1994
1995 typedef struct {
1996 unsigned short ext_type;
1997 ENDPOINT role;
1998 /* The context which this extension applies to */
1999 unsigned int context;
2000 /*
2001 * Per-connection flags relating to this extension type: not used if
2002 * part of an SSL_CTX structure.
2003 */
2004 uint32_t ext_flags;
2005 SSL_custom_ext_add_cb_ex add_cb;
2006 SSL_custom_ext_free_cb_ex free_cb;
2007 void *add_arg;
2008 SSL_custom_ext_parse_cb_ex parse_cb;
2009 void *parse_arg;
2010 } custom_ext_method;
2011
2012 /* ext_flags values */
2013
2014 /*
2015 * Indicates an extension has been received. Used to check for unsolicited or
2016 * duplicate extensions.
2017 */
2018 # define SSL_EXT_FLAG_RECEIVED 0x1
2019 /*
2020 * Indicates an extension has been sent: used to enable sending of
2021 * corresponding ServerHello extension.
2022 */
2023 # define SSL_EXT_FLAG_SENT 0x2
2024
2025 typedef struct {
2026 custom_ext_method *meths;
2027 size_t meths_count;
2028 } custom_ext_methods;
2029
2030 typedef struct cert_st {
2031 /* Current active set */
2032 /*
2033 * ALWAYS points to an element of the pkeys array
2034 * Probably it would make more sense to store
2035 * an index, not a pointer.
2036 */
2037 CERT_PKEY *key;
2038
2039 EVP_PKEY *dh_tmp;
2040 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
2041 int dh_tmp_auto;
2042 /* Flags related to certificates */
2043 uint32_t cert_flags;
2044 CERT_PKEY *pkeys;
2045 size_t ssl_pkey_num;
2046 /* Custom certificate types sent in certificate request message. */
2047 uint8_t *ctype;
2048 size_t ctype_len;
2049 /*
2050 * supported signature algorithms. When set on a client this is sent in
2051 * the client hello as the supported signature algorithms extension. For
2052 * servers it represents the signature algorithms we are willing to use.
2053 */
2054 uint16_t *conf_sigalgs;
2055 /* Size of above array */
2056 size_t conf_sigalgslen;
2057 /*
2058 * Client authentication signature algorithms, if not set then uses
2059 * conf_sigalgs. On servers these will be the signature algorithms sent
2060 * to the client in a certificate request for TLS 1.2. On a client this
2061 * represents the signature algorithms we are willing to use for client
2062 * authentication.
2063 */
2064 uint16_t *client_sigalgs;
2065 /* Size of above array */
2066 size_t client_sigalgslen;
2067 /*
2068 * Certificate setup callback: if set is called whenever a certificate
2069 * may be required (client or server). the callback can then examine any
2070 * appropriate parameters and setup any certificates required. This
2071 * allows advanced applications to select certificates on the fly: for
2072 * example based on supported signature algorithms or curves.
2073 */
2074 int (*cert_cb) (SSL *ssl, void *arg);
2075 void *cert_cb_arg;
2076 /*
2077 * Optional X509_STORE for chain building or certificate validation If
2078 * NULL the parent SSL_CTX store is used instead.
2079 */
2080 X509_STORE *chain_store;
2081 X509_STORE *verify_store;
2082 /* Custom extensions */
2083 custom_ext_methods custext;
2084 /* Security callback */
2085 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
2086 void *other, void *ex);
2087 /* Security level */
2088 int sec_level;
2089 void *sec_ex;
2090 # ifndef OPENSSL_NO_PSK
2091 /* If not NULL psk identity hint to use for servers */
2092 char *psk_identity_hint;
2093 # endif
2094 CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */
2095 } CERT;
2096
2097 /*
2098 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
2099 * of a mess of functions, but hell, think of it as an opaque structure :-)
2100 */
2101 typedef struct ssl3_enc_method {
2102 int (*setup_key_block) (SSL_CONNECTION *);
2103 int (*generate_master_secret) (SSL_CONNECTION *, unsigned char *,
2104 unsigned char *, size_t, size_t *);
2105 int (*change_cipher_state) (SSL_CONNECTION *, int);
2106 size_t (*final_finish_mac) (SSL_CONNECTION *, const char *, size_t,
2107 unsigned char *);
2108 const char *client_finished_label;
2109 size_t client_finished_label_len;
2110 const char *server_finished_label;
2111 size_t server_finished_label_len;
2112 int (*alert_value) (int);
2113 int (*export_keying_material) (SSL_CONNECTION *, unsigned char *, size_t,
2114 const char *, size_t,
2115 const unsigned char *, size_t,
2116 int use_context);
2117 /* Various flags indicating protocol version requirements */
2118 uint32_t enc_flags;
2119 /* Set the handshake header */
2120 int (*set_handshake_header) (SSL_CONNECTION *s, WPACKET *pkt, int type);
2121 /* Close construction of the handshake message */
2122 int (*close_construct_packet) (SSL_CONNECTION *s, WPACKET *pkt, int htype);
2123 /* Write out handshake message */
2124 int (*do_write) (SSL_CONNECTION *s);
2125 } SSL3_ENC_METHOD;
2126
2127 # define ssl_set_handshake_header(s, pkt, htype) \
2128 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
2129 # define ssl_close_construct_packet(s, pkt, htype) \
2130 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
2131 # define ssl_do_write(s) SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->do_write(s)
2132
2133 /* Values for enc_flags */
2134
2135 /* Uses signature algorithms extension */
2136 # define SSL_ENC_FLAG_SIGALGS 0x2
2137 /* Uses SHA256 default PRF */
2138 # define SSL_ENC_FLAG_SHA256_PRF 0x4
2139 /* Is DTLS */
2140 # define SSL_ENC_FLAG_DTLS 0x8
2141 /*
2142 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
2143 * apply to others in future.
2144 */
2145 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
2146
2147 typedef enum downgrade_en {
2148 DOWNGRADE_NONE,
2149 DOWNGRADE_TO_1_2,
2150 DOWNGRADE_TO_1_1
2151 } DOWNGRADE;
2152
2153 /*
2154 * Dummy status type for the status_type extension. Indicates no status type
2155 * set
2156 */
2157 #define TLSEXT_STATUSTYPE_nothing -1
2158
2159 /* Sigalgs values */
2160 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
2161 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
2162 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
2163 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303
2164 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203
2165 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804
2166 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805
2167 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806
2168 #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809
2169 #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a
2170 #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b
2171 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
2172 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
2173 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
2174 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301
2175 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
2176 #define TLSEXT_SIGALG_dsa_sha256 0x0402
2177 #define TLSEXT_SIGALG_dsa_sha384 0x0502
2178 #define TLSEXT_SIGALG_dsa_sha512 0x0602
2179 #define TLSEXT_SIGALG_dsa_sha224 0x0302
2180 #define TLSEXT_SIGALG_dsa_sha1 0x0202
2181 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840
2182 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841
2183 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
2184 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
2185 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
2186
2187 #define TLSEXT_SIGALG_ed25519 0x0807
2188 #define TLSEXT_SIGALG_ed448 0x0808
2189 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256 0x081a
2190 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384 0x081b
2191 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512 0x081c
2192
2193 /* Sigalgs names */
2194 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256_name "ecdsa_secp256r1_sha256"
2195 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384_name "ecdsa_secp384r1_sha384"
2196 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512_name "ecdsa_secp521r1_sha512"
2197 #define TLSEXT_SIGALG_ecdsa_sha224_name "ecdsa_sha224"
2198 #define TLSEXT_SIGALG_ecdsa_sha1_name "ecdsa_sha1"
2199 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256_name "rsa_pss_rsae_sha256"
2200 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384_name "rsa_pss_rsae_sha384"
2201 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512_name "rsa_pss_rsae_sha512"
2202 #define TLSEXT_SIGALG_rsa_pss_pss_sha256_name "rsa_pss_pss_sha256"
2203 #define TLSEXT_SIGALG_rsa_pss_pss_sha384_name "rsa_pss_pss_sha384"
2204 #define TLSEXT_SIGALG_rsa_pss_pss_sha512_name "rsa_pss_pss_sha512"
2205 #define TLSEXT_SIGALG_rsa_pkcs1_sha256_name "rsa_pkcs1_sha256"
2206 #define TLSEXT_SIGALG_rsa_pkcs1_sha384_name "rsa_pkcs1_sha384"
2207 #define TLSEXT_SIGALG_rsa_pkcs1_sha512_name "rsa_pkcs1_sha512"
2208 #define TLSEXT_SIGALG_rsa_pkcs1_sha224_name "rsa_pkcs1_sha224"
2209 #define TLSEXT_SIGALG_rsa_pkcs1_sha1_name "rsa_pkcs1_sha1"
2210 #define TLSEXT_SIGALG_dsa_sha256_name "dsa_sha256"
2211 #define TLSEXT_SIGALG_dsa_sha384_name "dsa_sha384"
2212 #define TLSEXT_SIGALG_dsa_sha512_name "dsa_sha512"
2213 #define TLSEXT_SIGALG_dsa_sha224_name "dsa_sha224"
2214 #define TLSEXT_SIGALG_dsa_sha1_name "dsa_sha1"
2215 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic_name "gost2012_256"
2216 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic_name "gost2012_512"
2217 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256_name "gost2012_256"
2218 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512_name "gost2012_512"
2219 #define TLSEXT_SIGALG_gostr34102001_gostr3411_name "gost2001_gost94"
2220
2221 #define TLSEXT_SIGALG_ed25519_name "ed25519"
2222 #define TLSEXT_SIGALG_ed448_name "ed448"
2223 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256_name "ecdsa_brainpoolP256r1_sha256"
2224 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384_name "ecdsa_brainpoolP384r1_sha384"
2225 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512_name "ecdsa_brainpoolP512r1_sha512"
2226
2227 /* Known PSK key exchange modes */
2228 #define TLSEXT_KEX_MODE_KE 0x00
2229 #define TLSEXT_KEX_MODE_KE_DHE 0x01
2230
2231 /*
2232 * Internal representations of key exchange modes
2233 */
2234 #define TLSEXT_KEX_MODE_FLAG_NONE 0
2235 #define TLSEXT_KEX_MODE_FLAG_KE 1
2236 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
2237
2238 #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \
2239 s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
2240
2241 /* TLSv1.3 downgrade protection sentinel values */
2242 extern const unsigned char tls11downgrade[8];
2243 extern const unsigned char tls12downgrade[8];
2244
2245 extern const SSL3_ENC_METHOD ssl3_undef_enc_method;
2246
2247 __owur const SSL_METHOD *sslv3_method(void);
2248 __owur const SSL_METHOD *sslv3_server_method(void);
2249 __owur const SSL_METHOD *sslv3_client_method(void);
2250 __owur const SSL_METHOD *tlsv1_method(void);
2251 __owur const SSL_METHOD *tlsv1_server_method(void);
2252 __owur const SSL_METHOD *tlsv1_client_method(void);
2253 __owur const SSL_METHOD *tlsv1_1_method(void);
2254 __owur const SSL_METHOD *tlsv1_1_server_method(void);
2255 __owur const SSL_METHOD *tlsv1_1_client_method(void);
2256 __owur const SSL_METHOD *tlsv1_2_method(void);
2257 __owur const SSL_METHOD *tlsv1_2_server_method(void);
2258 __owur const SSL_METHOD *tlsv1_2_client_method(void);
2259 __owur const SSL_METHOD *tlsv1_3_method(void);
2260 __owur const SSL_METHOD *tlsv1_3_server_method(void);
2261 __owur const SSL_METHOD *tlsv1_3_client_method(void);
2262 __owur const SSL_METHOD *dtlsv1_method(void);
2263 __owur const SSL_METHOD *dtlsv1_server_method(void);
2264 __owur const SSL_METHOD *dtlsv1_client_method(void);
2265 __owur const SSL_METHOD *dtls_bad_ver_client_method(void);
2266 __owur const SSL_METHOD *dtlsv1_2_method(void);
2267 __owur const SSL_METHOD *dtlsv1_2_server_method(void);
2268 __owur const SSL_METHOD *dtlsv1_2_client_method(void);
2269
2270 extern const SSL3_ENC_METHOD TLSv1_enc_data;
2271 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
2272 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
2273 extern const SSL3_ENC_METHOD TLSv1_3_enc_data;
2274 extern const SSL3_ENC_METHOD SSLv3_enc_data;
2275 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
2276 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
2277
2278 /*
2279 * Flags for SSL methods
2280 */
2281 # define SSL_METHOD_NO_FIPS (1U<<0)
2282 # define SSL_METHOD_NO_SUITEB (1U<<1)
2283
2284 # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
2285 s_connect, enc_data) \
2286 const SSL_METHOD *func_name(void) \
2287 { \
2288 static const SSL_METHOD func_name##_data= { \
2289 version, \
2290 flags, \
2291 mask, \
2292 ossl_ssl_connection_new, \
2293 ossl_ssl_connection_free, \
2294 ossl_ssl_connection_reset, \
2295 tls1_new, \
2296 tls1_clear, \
2297 tls1_free, \
2298 s_accept, \
2299 s_connect, \
2300 ssl3_read, \
2301 ssl3_peek, \
2302 ssl3_write, \
2303 ssl3_shutdown, \
2304 ssl3_renegotiate, \
2305 ssl3_renegotiate_check, \
2306 ssl3_read_bytes, \
2307 ssl3_write_bytes, \
2308 ssl3_dispatch_alert, \
2309 ssl3_ctrl, \
2310 ssl3_ctx_ctrl, \
2311 ssl3_get_cipher_by_char, \
2312 ssl3_put_cipher_by_char, \
2313 ssl3_pending, \
2314 ssl3_num_ciphers, \
2315 ssl3_get_cipher, \
2316 tls1_default_timeout, \
2317 &enc_data, \
2318 ssl_undefined_void_function, \
2319 ssl3_callback_ctrl, \
2320 ssl3_ctx_callback_ctrl, \
2321 }; \
2322 return &func_name##_data; \
2323 }
2324
2325 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
2326 const SSL_METHOD *func_name(void) \
2327 { \
2328 static const SSL_METHOD func_name##_data= { \
2329 SSL3_VERSION, \
2330 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
2331 SSL_OP_NO_SSLv3, \
2332 ossl_ssl_connection_new, \
2333 ossl_ssl_connection_free, \
2334 ossl_ssl_connection_reset, \
2335 ssl3_new, \
2336 ssl3_clear, \
2337 ssl3_free, \
2338 s_accept, \
2339 s_connect, \
2340 ssl3_read, \
2341 ssl3_peek, \
2342 ssl3_write, \
2343 ssl3_shutdown, \
2344 ssl3_renegotiate, \
2345 ssl3_renegotiate_check, \
2346 ssl3_read_bytes, \
2347 ssl3_write_bytes, \
2348 ssl3_dispatch_alert, \
2349 ssl3_ctrl, \
2350 ssl3_ctx_ctrl, \
2351 ssl3_get_cipher_by_char, \
2352 ssl3_put_cipher_by_char, \
2353 ssl3_pending, \
2354 ssl3_num_ciphers, \
2355 ssl3_get_cipher, \
2356 ssl3_default_timeout, \
2357 &SSLv3_enc_data, \
2358 ssl_undefined_void_function, \
2359 ssl3_callback_ctrl, \
2360 ssl3_ctx_callback_ctrl, \
2361 }; \
2362 return &func_name##_data; \
2363 }
2364
2365 # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
2366 s_connect, enc_data) \
2367 const SSL_METHOD *func_name(void) \
2368 { \
2369 static const SSL_METHOD func_name##_data= { \
2370 version, \
2371 flags, \
2372 mask, \
2373 ossl_ssl_connection_new, \
2374 ossl_ssl_connection_free, \
2375 ossl_ssl_connection_reset, \
2376 dtls1_new, \
2377 dtls1_clear, \
2378 dtls1_free, \
2379 s_accept, \
2380 s_connect, \
2381 ssl3_read, \
2382 ssl3_peek, \
2383 ssl3_write, \
2384 dtls1_shutdown, \
2385 ssl3_renegotiate, \
2386 ssl3_renegotiate_check, \
2387 dtls1_read_bytes, \
2388 dtls1_write_app_data_bytes, \
2389 dtls1_dispatch_alert, \
2390 dtls1_ctrl, \
2391 ssl3_ctx_ctrl, \
2392 ssl3_get_cipher_by_char, \
2393 ssl3_put_cipher_by_char, \
2394 ssl3_pending, \
2395 ssl3_num_ciphers, \
2396 ssl3_get_cipher, \
2397 dtls1_default_timeout, \
2398 &enc_data, \
2399 ssl_undefined_void_function, \
2400 ssl3_callback_ctrl, \
2401 ssl3_ctx_callback_ctrl, \
2402 }; \
2403 return &func_name##_data; \
2404 }
2405
2406 struct openssl_ssl_test_functions {
2407 int (*p_ssl_init_wbio_buffer) (SSL_CONNECTION *s);
2408 };
2409
2410 const char *ssl_protocol_to_string(int version);
2411
tls12_rpk_and_privkey(const SSL_CONNECTION * sc,int idx)2412 static ossl_inline int tls12_rpk_and_privkey(const SSL_CONNECTION *sc, int idx)
2413 {
2414 /*
2415 * This is to check for special cases when using RPK with just
2416 * a private key, and NO CERTIFICATE
2417 */
2418 return ((sc->server && sc->ext.server_cert_type == TLSEXT_cert_type_rpk)
2419 || (!sc->server && sc->ext.client_cert_type == TLSEXT_cert_type_rpk))
2420 && sc->cert->pkeys[idx].privatekey != NULL
2421 && sc->cert->pkeys[idx].x509 == NULL;
2422 }
2423
ssl_has_cert_type(const SSL_CONNECTION * sc,unsigned char ct)2424 static ossl_inline int ssl_has_cert_type(const SSL_CONNECTION *sc, unsigned char ct)
2425 {
2426 unsigned char *ptr;
2427 size_t len;
2428
2429 if (sc->server) {
2430 ptr = sc->server_cert_type;
2431 len = sc->server_cert_type_len;
2432 } else {
2433 ptr = sc->client_cert_type;
2434 len = sc->client_cert_type_len;
2435 }
2436
2437 if (ptr == NULL)
2438 return 0;
2439
2440 return memchr(ptr, ct, len) != NULL;
2441 }
2442
2443 /* Returns true if certificate and private key for 'idx' are present */
ssl_has_cert(const SSL_CONNECTION * s,int idx)2444 static ossl_inline int ssl_has_cert(const SSL_CONNECTION *s, int idx)
2445 {
2446 if (idx < 0 || idx >= (int)s->ssl_pkey_num)
2447 return 0;
2448
2449 /* If RPK is enabled for this SSL... only require private key */
2450 if (ssl_has_cert_type(s, TLSEXT_cert_type_rpk))
2451 return s->cert->pkeys[idx].privatekey != NULL;
2452
2453 return s->cert->pkeys[idx].x509 != NULL
2454 && s->cert->pkeys[idx].privatekey != NULL;
2455 }
2456
tls1_get_peer_groups(SSL_CONNECTION * s,const uint16_t ** pgroups,size_t * pgroupslen)2457 static ossl_inline void tls1_get_peer_groups(SSL_CONNECTION *s,
2458 const uint16_t **pgroups,
2459 size_t *pgroupslen)
2460 {
2461 *pgroups = s->ext.peer_supportedgroups;
2462 *pgroupslen = s->ext.peer_supportedgroups_len;
2463 }
2464
2465 # ifndef OPENSSL_UNIT_TEST
2466
2467 __owur int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method,
2468 int type);
2469 __owur SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, const SSL_METHOD *method);
2470 __owur SSL *ossl_ssl_connection_new(SSL_CTX *ctx);
2471 void ossl_ssl_connection_free(SSL *ssl);
2472 __owur int ossl_ssl_connection_reset(SSL *ssl);
2473
2474 __owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes);
2475 __owur int ssl_write_internal(SSL *s, const void *buf, size_t num,
2476 uint64_t flags, size_t *written);
2477 int ssl_clear_bad_session(SSL_CONNECTION *s);
2478 __owur CERT *ssl_cert_new(size_t ssl_pkey_num);
2479 __owur CERT *ssl_cert_dup(CERT *cert);
2480 void ssl_cert_clear_certs(CERT *c);
2481 void ssl_cert_free(CERT *c);
2482 __owur int ssl_generate_session_id(SSL_CONNECTION *s, SSL_SESSION *ss);
2483 __owur int ssl_get_new_session(SSL_CONNECTION *s, int session);
2484 __owur SSL_SESSION *lookup_sess_in_cache(SSL_CONNECTION *s,
2485 const unsigned char *sess_id,
2486 size_t sess_id_len);
2487 __owur int ssl_get_prev_session(SSL_CONNECTION *s, CLIENTHELLO_MSG *hello);
2488 __owur SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket);
2489 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
2490 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
2491 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
2492 const SSL_CIPHER *const *bp);
2493 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx,
2494 STACK_OF(SSL_CIPHER) *tls13_ciphersuites,
2495 STACK_OF(SSL_CIPHER) **cipher_list,
2496 STACK_OF(SSL_CIPHER) **cipher_list_by_id,
2497 const char *rule_str,
2498 CERT *c);
2499 __owur int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites,
2500 int sslv2format);
2501 __owur int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites,
2502 STACK_OF(SSL_CIPHER) **skp,
2503 STACK_OF(SSL_CIPHER) **scsvs, int sslv2format,
2504 int fatal);
2505 void ssl_update_cache(SSL_CONNECTION *s, int mode);
2506 __owur int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc,
2507 const EVP_CIPHER **enc);
2508 __owur int ssl_cipher_get_evp_md_mac(SSL_CTX *ctx, const SSL_CIPHER *sslc,
2509 const EVP_MD **md,
2510 int *mac_pkey_type, size_t *mac_secret_size);
2511 __owur int ssl_cipher_get_evp(SSL_CTX *ctxc, const SSL_SESSION *s,
2512 const EVP_CIPHER **enc, const EVP_MD **md,
2513 int *mac_pkey_type, size_t *mac_secret_size,
2514 SSL_COMP **comp, int use_etm);
2515 __owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead,
2516 size_t *int_overhead, size_t *blocksize,
2517 size_t *ext_overhead);
2518 __owur int ssl_cert_is_disabled(SSL_CTX *ctx, size_t idx);
2519 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL_CONNECTION *ssl,
2520 const unsigned char *ptr,
2521 int all);
2522 __owur int ssl_cert_set0_chain(SSL_CONNECTION *s, SSL_CTX *ctx,
2523 STACK_OF(X509) *chain);
2524 __owur int ssl_cert_set1_chain(SSL_CONNECTION *s, SSL_CTX *ctx,
2525 STACK_OF(X509) *chain);
2526 __owur int ssl_cert_add0_chain_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x);
2527 __owur int ssl_cert_add1_chain_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x);
2528 __owur int ssl_cert_select_current(CERT *c, X509 *x);
2529 __owur int ssl_cert_set_current(CERT *c, long arg);
2530 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg);
2531
2532 __owur int ssl_verify_cert_chain(SSL_CONNECTION *s, STACK_OF(X509) *sk);
2533 __owur int ssl_verify_rpk(SSL_CONNECTION *s, EVP_PKEY *rpk);
2534 __owur int ssl_build_cert_chain(SSL_CONNECTION *s, SSL_CTX *ctx, int flags);
2535 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain,
2536 int ref);
2537 __owur int ssl_cert_get_cert_store(CERT *c, X509_STORE **pstore, int chain);
2538
2539 __owur int ssl_security(const SSL_CONNECTION *s, int op, int bits, int nid,
2540 void *other);
2541 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid,
2542 void *other);
2543 int ssl_get_security_level_bits(const SSL *s, const SSL_CTX *ctx, int *levelp);
2544
2545 __owur int ssl_cert_lookup_by_nid(int nid, size_t *pidx, SSL_CTX *ctx);
2546 __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk,
2547 size_t *pidx,
2548 SSL_CTX *ctx);
2549 __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx, SSL_CTX *ctx);
2550
2551 int ssl_undefined_function(SSL *s);
2552 __owur int ssl_undefined_void_function(void);
2553 __owur int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s,
2554 const unsigned char **serverinfo,
2555 size_t *serverinfo_length);
2556 void ssl_set_masks(SSL_CONNECTION *s);
2557 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *sc);
2558 __owur int ssl_x509err2alert(int type);
2559 void ssl_sort_cipher_list(void);
2560 int ssl_load_ciphers(SSL_CTX *ctx);
2561 __owur int ssl_setup_sigalgs(SSL_CTX *ctx);
2562 int ssl_load_groups(SSL_CTX *ctx);
2563 int ssl_load_sigalgs(SSL_CTX *ctx);
2564 __owur int ssl_fill_hello_random(SSL_CONNECTION *s, int server,
2565 unsigned char *field, size_t len,
2566 DOWNGRADE dgrd);
2567 __owur int ssl_generate_master_secret(SSL_CONNECTION *s, unsigned char *pms,
2568 size_t pmslen, int free_pms);
2569 __owur EVP_PKEY *ssl_generate_pkey(SSL_CONNECTION *s, EVP_PKEY *pm);
2570 __owur int ssl_gensecret(SSL_CONNECTION *s, unsigned char *pms, size_t pmslen);
2571 __owur int ssl_derive(SSL_CONNECTION *s, EVP_PKEY *privkey, EVP_PKEY *pubkey,
2572 int genmaster);
2573 __owur int ssl_decapsulate(SSL_CONNECTION *s, EVP_PKEY *privkey,
2574 const unsigned char *ct, size_t ctlen,
2575 int gensecret);
2576 __owur int ssl_encapsulate(SSL_CONNECTION *s, EVP_PKEY *pubkey,
2577 unsigned char **ctp, size_t *ctlenp,
2578 int gensecret);
2579 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
2580 __owur int ssl_set_tmp_ecdh_groups(uint16_t **pext, size_t *pextlen,
2581 void *key);
2582 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc);
2583 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc);
2584
2585 __owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id);
2586 __owur const SSL_CIPHER *ssl3_get_cipher_by_std_name(const char *stdname);
2587 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
2588 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt,
2589 size_t *len);
2590 int ssl3_init_finished_mac(SSL_CONNECTION *s);
2591 __owur int ssl3_setup_key_block(SSL_CONNECTION *s);
2592 __owur int ssl3_change_cipher_state(SSL_CONNECTION *s, int which);
2593 void ssl3_cleanup_key_block(SSL_CONNECTION *s);
2594 __owur int ssl3_do_write(SSL_CONNECTION *s, uint8_t type);
2595 int ssl3_send_alert(SSL_CONNECTION *s, int level, int desc);
2596 __owur int ssl3_generate_master_secret(SSL_CONNECTION *s, unsigned char *out,
2597 unsigned char *p, size_t len,
2598 size_t *secret_size);
2599 __owur int ssl3_get_req_cert_type(SSL_CONNECTION *s, WPACKET *pkt);
2600 __owur int ssl3_num_ciphers(void);
2601 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
2602 int ssl3_renegotiate(SSL *ssl);
2603 int ssl3_renegotiate_check(SSL *ssl, int initok);
2604 void ssl3_digest_master_key_set_params(const SSL_SESSION *session,
2605 OSSL_PARAM params[]);
2606 __owur int ssl3_dispatch_alert(SSL *s);
2607 __owur size_t ssl3_final_finish_mac(SSL_CONNECTION *s, const char *sender,
2608 size_t slen, unsigned char *p);
2609 __owur int ssl3_finish_mac(SSL_CONNECTION *s, const unsigned char *buf,
2610 size_t len);
2611 void ssl3_free_digest_list(SSL_CONNECTION *s);
2612 __owur unsigned long ssl3_output_cert_chain(SSL_CONNECTION *s, WPACKET *pkt,
2613 CERT_PKEY *cpk, int for_comp);
2614 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL_CONNECTION *s,
2615 STACK_OF(SSL_CIPHER) *clnt,
2616 STACK_OF(SSL_CIPHER) *srvr);
2617 __owur int ssl3_digest_cached_records(SSL_CONNECTION *s, int keep);
2618 __owur int ssl3_new(SSL *s);
2619 void ssl3_free(SSL *s);
2620 __owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes);
2621 __owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes);
2622 __owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written);
2623 __owur int ssl3_shutdown(SSL *s);
2624 int ssl3_clear(SSL *s);
2625 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
2626 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
2627 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2628 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
2629
2630 __owur int ssl3_do_change_cipher_spec(SSL_CONNECTION *s);
2631 __owur OSSL_TIME ssl3_default_timeout(void);
2632
2633 __owur int ssl3_set_handshake_header(SSL_CONNECTION *s, WPACKET *pkt,
2634 int htype);
2635 __owur int tls_close_construct_packet(SSL_CONNECTION *s, WPACKET *pkt, int htype);
2636 __owur int tls_setup_handshake(SSL_CONNECTION *s);
2637 __owur int dtls1_set_handshake_header(SSL_CONNECTION *s, WPACKET *pkt, int htype);
2638 __owur int dtls1_close_construct_packet(SSL_CONNECTION *s, WPACKET *pkt, int htype);
2639 __owur int ssl3_handshake_write(SSL_CONNECTION *s);
2640
2641 __owur int ssl_allow_compression(SSL_CONNECTION *s);
2642
2643 __owur int ssl_version_cmp(const SSL_CONNECTION *s, int versiona, int versionb);
2644 __owur int ssl_version_supported(const SSL_CONNECTION *s, int version,
2645 const SSL_METHOD **meth);
2646
2647 __owur int ssl_set_client_hello_version(SSL_CONNECTION *s);
2648 __owur int ssl_check_version_downgrade(SSL_CONNECTION *s);
2649 __owur int ssl_set_version_bound(int method_version, int version, int *bound);
2650 __owur int ssl_choose_server_version(SSL_CONNECTION *s, CLIENTHELLO_MSG *hello,
2651 DOWNGRADE *dgrd);
2652 __owur int ssl_choose_client_version(SSL_CONNECTION *s, int version,
2653 RAW_EXTENSION *extensions);
2654 __owur int ssl_get_min_max_version(const SSL_CONNECTION *s, int *min_version,
2655 int *max_version, int *real_max);
2656
2657 __owur OSSL_TIME tls1_default_timeout(void);
2658 __owur int dtls1_do_write(SSL_CONNECTION *s, uint8_t type);
2659 void dtls1_set_message_header(SSL_CONNECTION *s,
2660 unsigned char mt,
2661 size_t len,
2662 size_t frag_off, size_t frag_len);
2663
2664 int dtls1_write_app_data_bytes(SSL *s, uint8_t type, const void *buf_,
2665 size_t len, size_t *written);
2666
2667 __owur int dtls1_read_failed(SSL_CONNECTION *s, int code);
2668 __owur int dtls1_buffer_message(SSL_CONNECTION *s, int ccs);
2669 __owur int dtls1_retransmit_message(SSL_CONNECTION *s, unsigned short seq,
2670 int *found);
2671 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
2672 int dtls1_retransmit_buffered_messages(SSL_CONNECTION *s);
2673 void dtls1_clear_received_buffer(SSL_CONNECTION *s);
2674 void dtls1_clear_sent_buffer(SSL_CONNECTION *s);
2675 void dtls1_get_message_header(const unsigned char *data,
2676 struct hm_header_st *msg_hdr);
2677 __owur OSSL_TIME dtls1_default_timeout(void);
2678 __owur int dtls1_get_timeout(const SSL_CONNECTION *s, OSSL_TIME *timeleft);
2679 __owur int dtls1_check_timeout_num(SSL_CONNECTION *s);
2680 __owur int dtls1_handle_timeout(SSL_CONNECTION *s);
2681 void dtls1_start_timer(SSL_CONNECTION *s);
2682 void dtls1_stop_timer(SSL_CONNECTION *s);
2683 __owur int dtls1_is_timer_expired(SSL_CONNECTION *s);
2684 __owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie,
2685 size_t cookie_len);
2686 __owur size_t dtls1_min_mtu(SSL_CONNECTION *s);
2687 void dtls1_hm_fragment_free(hm_fragment *frag);
2688 __owur int dtls1_query_mtu(SSL_CONNECTION *s);
2689
2690 __owur int tls1_new(SSL *s);
2691 void tls1_free(SSL *s);
2692 int tls1_clear(SSL *s);
2693
2694 __owur int dtls1_new(SSL *s);
2695 void dtls1_free(SSL *s);
2696 int dtls1_clear(SSL *s);
2697 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2698 __owur int dtls1_shutdown(SSL *s);
2699
2700 __owur int dtls1_dispatch_alert(SSL *s);
2701
2702 __owur int ssl_init_wbio_buffer(SSL_CONNECTION *s);
2703 int ssl_free_wbio_buffer(SSL_CONNECTION *s);
2704
2705 __owur int tls1_change_cipher_state(SSL_CONNECTION *s, int which);
2706 __owur int tls1_setup_key_block(SSL_CONNECTION *s);
2707 __owur size_t tls1_final_finish_mac(SSL_CONNECTION *s, const char *str,
2708 size_t slen, unsigned char *p);
2709 __owur int tls1_generate_master_secret(SSL_CONNECTION *s, unsigned char *out,
2710 unsigned char *p, size_t len,
2711 size_t *secret_size);
2712 __owur int tls13_setup_key_block(SSL_CONNECTION *s);
2713 __owur size_t tls13_final_finish_mac(SSL_CONNECTION *s, const char *str, size_t slen,
2714 unsigned char *p);
2715 __owur int tls13_change_cipher_state(SSL_CONNECTION *s, int which);
2716 __owur int tls13_update_key(SSL_CONNECTION *s, int send);
2717 __owur int tls13_hkdf_expand(SSL_CONNECTION *s,
2718 const EVP_MD *md,
2719 const unsigned char *secret,
2720 const unsigned char *label, size_t labellen,
2721 const unsigned char *data, size_t datalen,
2722 unsigned char *out, size_t outlen, int fatal);
2723 __owur int tls13_hkdf_expand_ex(OSSL_LIB_CTX *libctx, const char *propq,
2724 const EVP_MD *md,
2725 const unsigned char *secret,
2726 const unsigned char *label, size_t labellen,
2727 const unsigned char *data, size_t datalen,
2728 unsigned char *out, size_t outlen,
2729 int raise_error);
2730 __owur int tls13_derive_key(SSL_CONNECTION *s, const EVP_MD *md,
2731 const unsigned char *secret, unsigned char *key,
2732 size_t keylen);
2733 __owur int tls13_derive_iv(SSL_CONNECTION *s, const EVP_MD *md,
2734 const unsigned char *secret, unsigned char *iv,
2735 size_t ivlen);
2736 __owur int tls13_derive_finishedkey(SSL_CONNECTION *s, const EVP_MD *md,
2737 const unsigned char *secret,
2738 unsigned char *fin, size_t finlen);
2739 int tls13_generate_secret(SSL_CONNECTION *s, const EVP_MD *md,
2740 const unsigned char *prevsecret,
2741 const unsigned char *insecret,
2742 size_t insecretlen,
2743 unsigned char *outsecret);
2744 __owur int tls13_generate_handshake_secret(SSL_CONNECTION *s,
2745 const unsigned char *insecret,
2746 size_t insecretlen);
2747 __owur int tls13_generate_master_secret(SSL_CONNECTION *s, unsigned char *out,
2748 unsigned char *prev, size_t prevlen,
2749 size_t *secret_size);
2750 __owur int tls1_export_keying_material(SSL_CONNECTION *s,
2751 unsigned char *out, size_t olen,
2752 const char *label, size_t llen,
2753 const unsigned char *p, size_t plen,
2754 int use_context);
2755 __owur int tls13_export_keying_material(SSL_CONNECTION *s,
2756 unsigned char *out, size_t olen,
2757 const char *label, size_t llen,
2758 const unsigned char *context,
2759 size_t contextlen, int use_context);
2760 __owur int tls13_export_keying_material_early(SSL_CONNECTION *s,
2761 unsigned char *out, size_t olen,
2762 const char *label, size_t llen,
2763 const unsigned char *context,
2764 size_t contextlen);
2765 __owur int tls1_alert_code(int code);
2766 __owur int tls13_alert_code(int code);
2767 __owur int ssl3_alert_code(int code);
2768
2769 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s);
2770
2771 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2772
2773 __owur const TLS_GROUP_INFO *tls1_group_id_lookup(SSL_CTX *ctx, uint16_t curve_id);
2774 __owur const char *tls1_group_id2name(SSL_CTX *ctx, uint16_t group_id);
2775 __owur int tls1_group_id2nid(uint16_t group_id, int include_unknown);
2776 __owur uint16_t tls1_nid2group_id(int nid);
2777 __owur int tls1_check_group_id(SSL_CONNECTION *s, uint16_t group_id,
2778 int check_own_curves);
2779 __owur uint16_t tls1_shared_group(SSL_CONNECTION *s, int nmatch);
2780 __owur int tls1_set_groups(uint16_t **pext, size_t *pextlen,
2781 int *curves, size_t ncurves);
2782 __owur int tls1_set_groups_list(SSL_CTX *ctx, uint16_t **pext, size_t *pextlen,
2783 const char *str);
2784 __owur EVP_PKEY *ssl_generate_pkey_group(SSL_CONNECTION *s, uint16_t id);
2785 __owur int tls_valid_group(SSL_CONNECTION *s, uint16_t group_id, int minversion,
2786 int maxversion, int isec, int *okfortls13);
2787 __owur EVP_PKEY *ssl_generate_param_group(SSL_CONNECTION *s, uint16_t id);
2788 void tls1_get_formatlist(SSL_CONNECTION *s, const unsigned char **pformats,
2789 size_t *num_formats);
2790 __owur int tls1_check_ec_tmp_key(SSL_CONNECTION *s, unsigned long id);
2791
2792 __owur int tls_group_allowed(SSL_CONNECTION *s, uint16_t curve, int op);
2793 void tls1_get_supported_groups(SSL_CONNECTION *s, const uint16_t **pgroups,
2794 size_t *pgroupslen);
2795
2796 __owur int tls1_set_server_sigalgs(SSL_CONNECTION *s);
2797
2798 __owur SSL_TICKET_STATUS tls_get_ticket_from_client(SSL_CONNECTION *s,
2799 CLIENTHELLO_MSG *hello,
2800 SSL_SESSION **ret);
2801 __owur SSL_TICKET_STATUS tls_decrypt_ticket(SSL_CONNECTION *s,
2802 const unsigned char *etick,
2803 size_t eticklen,
2804 const unsigned char *sess_id,
2805 size_t sesslen, SSL_SESSION **psess);
2806
2807 __owur int tls_use_ticket(SSL_CONNECTION *s);
2808
2809 void ssl_set_sig_mask(uint32_t *pmask_a, SSL_CONNECTION *s, int op);
2810
2811 __owur int tls1_set_sigalgs_list(SSL_CTX *ctx, CERT *c, const char *str, int client);
2812 __owur int tls1_set_raw_sigalgs(CERT *c, const uint16_t *psigs, size_t salglen,
2813 int client);
2814 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen,
2815 int client);
2816 int tls1_check_chain(SSL_CONNECTION *s, X509 *x, EVP_PKEY *pk,
2817 STACK_OF(X509) *chain, int idx);
2818 void tls1_set_cert_validity(SSL_CONNECTION *s);
2819
2820 # ifndef OPENSSL_NO_CT
2821 __owur int ssl_validate_ct(SSL_CONNECTION *s);
2822 # endif
2823
2824 __owur EVP_PKEY *ssl_get_auto_dh(SSL_CONNECTION *s);
2825
2826 __owur int ssl_security_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x, int vfy,
2827 int is_ee);
2828 __owur int ssl_security_cert_chain(SSL_CONNECTION *s, STACK_OF(X509) *sk,
2829 X509 *ex, int vfy);
2830
2831 int tls_choose_sigalg(SSL_CONNECTION *s, int fatalerrs);
2832
2833 __owur long ssl_get_algorithm2(SSL_CONNECTION *s);
2834 __owur int tls12_copy_sigalgs(SSL_CONNECTION *s, WPACKET *pkt,
2835 const uint16_t *psig, size_t psiglen);
2836 __owur int tls1_save_u16(PACKET *pkt, uint16_t **pdest, size_t *pdestlen);
2837 __owur int tls1_save_sigalgs(SSL_CONNECTION *s, PACKET *pkt, int cert);
2838 __owur int tls1_process_sigalgs(SSL_CONNECTION *s);
2839 __owur int tls1_set_peer_legacy_sigalg(SSL_CONNECTION *s, const EVP_PKEY *pkey);
2840 __owur int tls1_lookup_md(SSL_CTX *ctx, const SIGALG_LOOKUP *lu,
2841 const EVP_MD **pmd);
2842 __owur size_t tls12_get_psigalgs(SSL_CONNECTION *s, int sent,
2843 const uint16_t **psigs);
2844 __owur int tls_check_sigalg_curve(const SSL_CONNECTION *s, int curve);
2845 __owur int tls12_check_peer_sigalg(SSL_CONNECTION *s, uint16_t, EVP_PKEY *pkey);
2846 __owur int ssl_set_client_disabled(SSL_CONNECTION *s);
2847 __owur int ssl_cipher_disabled(const SSL_CONNECTION *s, const SSL_CIPHER *c,
2848 int op, int echde);
2849
2850 __owur int ssl_handshake_hash(SSL_CONNECTION *s,
2851 unsigned char *out, size_t outlen,
2852 size_t *hashlen);
2853 __owur const EVP_MD *ssl_md(SSL_CTX *ctx, int idx);
2854 int ssl_get_md_idx(int md_nid);
2855 __owur const EVP_MD *ssl_handshake_md(SSL_CONNECTION *s);
2856 __owur const EVP_MD *ssl_prf_md(SSL_CONNECTION *s);
2857
2858 /*
2859 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2860 * with |ssl|, if logging is enabled. It returns one on success and zero on
2861 * failure. The entry is identified by the first 8 bytes of
2862 * |encrypted_premaster|.
2863 */
2864 __owur int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *s,
2865 const uint8_t *encrypted_premaster,
2866 size_t encrypted_premaster_len,
2867 const uint8_t *premaster,
2868 size_t premaster_len);
2869
2870 /*
2871 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2872 * logging is available. It returns one on success and zero on failure. It tags
2873 * the entry with |label|.
2874 */
2875 __owur int ssl_log_secret(SSL_CONNECTION *s, const char *label,
2876 const uint8_t *secret, size_t secret_len);
2877
2878 #define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2879 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET"
2880 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2881 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2882 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2883 #define CLIENT_APPLICATION_N_LABEL "CLIENT_TRAFFIC_SECRET_N"
2884 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2885 #define SERVER_APPLICATION_N_LABEL "SERVER_TRAFFIC_SECRET_N"
2886 #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET"
2887 #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET"
2888
2889 __owur int srp_generate_server_master_secret(SSL_CONNECTION *s);
2890 __owur int srp_generate_client_master_secret(SSL_CONNECTION *s);
2891 __owur int srp_verify_server_param(SSL_CONNECTION *s);
2892
2893 /* statem/statem_srvr.c */
2894
2895 __owur int send_certificate_request(SSL_CONNECTION *s);
2896
2897 /* statem/extensions_cust.c */
2898
2899 custom_ext_method *custom_ext_find(const custom_ext_methods *exts,
2900 ENDPOINT role, unsigned int ext_type,
2901 size_t *idx);
2902
2903 void custom_ext_init(custom_ext_methods *meths);
2904
2905 int ossl_tls_add_custom_ext_intern(SSL_CTX *ctx, custom_ext_methods *exts,
2906 ENDPOINT role, unsigned int ext_type,
2907 unsigned int context,
2908 SSL_custom_ext_add_cb_ex add_cb,
2909 SSL_custom_ext_free_cb_ex free_cb,
2910 void *add_arg,
2911 SSL_custom_ext_parse_cb_ex parse_cb,
2912 void *parse_arg);
2913 __owur int custom_ext_parse(SSL_CONNECTION *s, unsigned int context,
2914 unsigned int ext_type,
2915 const unsigned char *ext_data, size_t ext_size,
2916 X509 *x, size_t chainidx);
2917 __owur int custom_ext_add(SSL_CONNECTION *s, int context, WPACKET *pkt, X509 *x,
2918 size_t chainidx, int maxversion);
2919
2920 __owur int custom_exts_copy(custom_ext_methods *dst,
2921 const custom_ext_methods *src);
2922 __owur int custom_exts_copy_flags(custom_ext_methods *dst,
2923 const custom_ext_methods *src);
2924 void custom_exts_free(custom_ext_methods *exts);
2925
2926 /* ssl_mcnf.c */
2927 int ssl_ctx_system_config(SSL_CTX *ctx);
2928
2929 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx,
2930 int nid,
2931 const char *properties);
2932 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher);
2933 void ssl_evp_cipher_free(const EVP_CIPHER *cipher);
2934 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx,
2935 int nid,
2936 const char *properties);
2937 int ssl_evp_md_up_ref(const EVP_MD *md);
2938 void ssl_evp_md_free(const EVP_MD *md);
2939
2940 void tls_engine_finish(ENGINE *e);
2941 const EVP_CIPHER *tls_get_cipher_from_engine(int nid);
2942 const EVP_MD *tls_get_digest_from_engine(int nid);
2943 int tls_engine_load_ssl_client_cert(SSL_CONNECTION *s, X509 **px509,
2944 EVP_PKEY **ppkey);
2945 int ssl_hmac_old_new(SSL_HMAC *ret);
2946 void ssl_hmac_old_free(SSL_HMAC *ctx);
2947 int ssl_hmac_old_init(SSL_HMAC *ctx, void *key, size_t len, char *md);
2948 int ssl_hmac_old_update(SSL_HMAC *ctx, const unsigned char *data, size_t len);
2949 int ssl_hmac_old_final(SSL_HMAC *ctx, unsigned char *md, size_t *len);
2950 size_t ssl_hmac_old_size(const SSL_HMAC *ctx);
2951
2952 int ssl_ctx_srp_ctx_free_intern(SSL_CTX *ctx);
2953 int ssl_ctx_srp_ctx_init_intern(SSL_CTX *ctx);
2954 int ssl_srp_ctx_free_intern(SSL_CONNECTION *s);
2955 int ssl_srp_ctx_init_intern(SSL_CONNECTION *s);
2956
2957 int ssl_srp_calc_a_param_intern(SSL_CONNECTION *s);
2958 int ssl_srp_server_param_with_username_intern(SSL_CONNECTION *s, int *ad);
2959
2960 void ssl_session_calculate_timeout(SSL_SESSION *ss);
2961
2962 # else /* OPENSSL_UNIT_TEST */
2963
2964 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2965
2966 # endif
2967
2968 /* Some helper routines to support TSAN operations safely */
ssl_tsan_lock(const SSL_CTX * ctx)2969 static ossl_unused ossl_inline int ssl_tsan_lock(const SSL_CTX *ctx)
2970 {
2971 #ifdef TSAN_REQUIRES_LOCKING
2972 if (!CRYPTO_THREAD_write_lock(ctx->tsan_lock))
2973 return 0;
2974 #endif
2975 return 1;
2976 }
2977
ssl_tsan_unlock(const SSL_CTX * ctx)2978 static ossl_unused ossl_inline void ssl_tsan_unlock(const SSL_CTX *ctx)
2979 {
2980 #ifdef TSAN_REQUIRES_LOCKING
2981 CRYPTO_THREAD_unlock(ctx->tsan_lock);
2982 #endif
2983 }
2984
ssl_tsan_counter(const SSL_CTX * ctx,TSAN_QUALIFIER int * stat)2985 static ossl_unused ossl_inline void ssl_tsan_counter(const SSL_CTX *ctx,
2986 TSAN_QUALIFIER int *stat)
2987 {
2988 if (ssl_tsan_lock(ctx)) {
2989 tsan_counter(stat);
2990 ssl_tsan_unlock(ctx);
2991 }
2992 }
2993
2994 int ossl_comp_has_alg(int a);
2995 size_t ossl_calculate_comp_expansion(int alg, size_t length);
2996
2997 void ossl_ssl_set_custom_record_layer(SSL_CONNECTION *s,
2998 const OSSL_RECORD_METHOD *meth,
2999 void *rlarg);
3000
3001 long ossl_ctrl_internal(SSL *s, int cmd, long larg, void *parg, int no_quic);
3002
3003 /*
3004 * Options which no longer have any effect, but which can be implemented
3005 * as no-ops for QUIC.
3006 */
3007 #define OSSL_LEGACY_SSL_OPTIONS \
3008 (SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG | \
3009 SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER | \
3010 SSL_OP_SSLEAY_080_CLIENT_DH_BUG | \
3011 SSL_OP_TLS_D5_BUG | \
3012 SSL_OP_TLS_BLOCK_PADDING_BUG | \
3013 SSL_OP_MSIE_SSLV2_RSA_PADDING | \
3014 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG | \
3015 SSL_OP_MICROSOFT_SESS_ID_BUG | \
3016 SSL_OP_NETSCAPE_CHALLENGE_BUG | \
3017 SSL_OP_PKCS1_CHECK_1 | \
3018 SSL_OP_PKCS1_CHECK_2 | \
3019 SSL_OP_SINGLE_DH_USE | \
3020 SSL_OP_SINGLE_ECDH_USE | \
3021 SSL_OP_EPHEMERAL_RSA )
3022
3023 /* This option is undefined in public headers with no-dtls1-method. */
3024 #ifndef SSL_OP_CISCO_ANYCONNECT
3025 # define SSL_OP_CISCO_ANYCONNECT 0
3026 #endif
3027 /*
3028 * Options which are no-ops under QUIC or TLSv1.3 and which are therefore
3029 * allowed but ignored under QUIC.
3030 */
3031 #define OSSL_TLS1_2_OPTIONS \
3032 (SSL_OP_CRYPTOPRO_TLSEXT_BUG | \
3033 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS | \
3034 SSL_OP_ALLOW_CLIENT_RENEGOTIATION | \
3035 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION | \
3036 SSL_OP_NO_COMPRESSION | \
3037 SSL_OP_NO_SSLv3 | \
3038 SSL_OP_NO_TLSv1 | \
3039 SSL_OP_NO_TLSv1_1 | \
3040 SSL_OP_NO_TLSv1_2 | \
3041 SSL_OP_NO_DTLSv1 | \
3042 SSL_OP_NO_DTLSv1_2 | \
3043 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | \
3044 SSL_OP_CISCO_ANYCONNECT | \
3045 SSL_OP_NO_RENEGOTIATION | \
3046 SSL_OP_NO_EXTENDED_MASTER_SECRET | \
3047 SSL_OP_NO_ENCRYPT_THEN_MAC | \
3048 SSL_OP_COOKIE_EXCHANGE | \
3049 SSL_OP_LEGACY_SERVER_CONNECT | \
3050 SSL_OP_IGNORE_UNEXPECTED_EOF )
3051
3052 /* Total mask of connection-level options permitted or ignored under QUIC. */
3053 #define OSSL_QUIC_PERMITTED_OPTIONS_CONN \
3054 (OSSL_LEGACY_SSL_OPTIONS | \
3055 OSSL_TLS1_2_OPTIONS | \
3056 SSL_OP_CIPHER_SERVER_PREFERENCE | \
3057 SSL_OP_DISABLE_TLSEXT_CA_NAMES | \
3058 SSL_OP_NO_TX_CERTIFICATE_COMPRESSION | \
3059 SSL_OP_NO_RX_CERTIFICATE_COMPRESSION | \
3060 SSL_OP_PRIORITIZE_CHACHA | \
3061 SSL_OP_NO_QUERY_MTU | \
3062 SSL_OP_NO_TICKET | \
3063 SSL_OP_NO_ANTI_REPLAY )
3064
3065 /* Total mask of stream-level options permitted or ignored under QUIC. */
3066 #define OSSL_QUIC_PERMITTED_OPTIONS_STREAM \
3067 (OSSL_LEGACY_SSL_OPTIONS | \
3068 OSSL_TLS1_2_OPTIONS | \
3069 SSL_OP_CLEANSE_PLAINTEXT )
3070
3071 /* Total mask of options permitted on either connections or streams. */
3072 #define OSSL_QUIC_PERMITTED_OPTIONS \
3073 (OSSL_QUIC_PERMITTED_OPTIONS_CONN | \
3074 OSSL_QUIC_PERMITTED_OPTIONS_STREAM)
3075
3076 #endif
3077
