1 /* 2 * Copyright 1995-2025 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 "internal/quic_predef.h" 41 #include "record/record.h" 42 #include "internal/quic_predef.h" 43 #include "internal/quic_tls.h" 44 45 #ifdef OPENSSL_BUILD_SHLIBSSL 46 #undef OPENSSL_EXTERN 47 #define OPENSSL_EXTERN OPENSSL_EXPORT 48 #endif 49 50 #define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION 51 #define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION 52 53 /* 54 * DTLS version numbers are strange because they're inverted. Except for 55 * DTLS1_BAD_VER, which should be considered "lower" than the rest. 56 */ 57 #define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1)) 58 #define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2)) 59 #define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2)) 60 #define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2)) 61 #define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2)) 62 63 #define SSL_AD_NO_ALERT -1 64 65 /* 66 * Define the Bitmasks for SSL_CIPHER.algorithms. 67 * This bits are used packed as dense as possible. If new methods/ciphers 68 * etc will be added, the bits a likely to change, so this information 69 * is for internal library use only, even though SSL_CIPHER.algorithms 70 * can be publicly accessed. 71 * Use the according functions for cipher management instead. 72 * 73 * The bit mask handling in the selection and sorting scheme in 74 * ssl_create_cipher_list() has only limited capabilities, reflecting 75 * that the different entities within are mutually exclusive: 76 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. 77 */ 78 79 /* Bits for algorithm_mkey (key exchange algorithm) */ 80 /* RSA key exchange */ 81 #define SSL_kRSA 0x00000001U 82 /* tmp DH key no DH cert */ 83 #define SSL_kDHE 0x00000002U 84 /* ephemeral ECDH */ 85 #define SSL_kECDHE 0x00000004U 86 /* PSK */ 87 #define SSL_kPSK 0x00000008U 88 /* GOST key exchange */ 89 #define SSL_kGOST 0x00000010U 90 /* SRP */ 91 #define SSL_kSRP 0x00000020U 92 93 #define SSL_kRSAPSK 0x00000040U 94 #define SSL_kECDHEPSK 0x00000080U 95 #define SSL_kDHEPSK 0x00000100U 96 /* GOST KDF key exchange, draft-smyshlyaev-tls12-gost-suites */ 97 #define SSL_kGOST18 0x00000200U 98 99 /* all PSK */ 100 101 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK) 102 103 /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */ 104 #define SSL_kANY 0x00000000U 105 106 /* Bits for algorithm_auth (server authentication) */ 107 /* RSA auth */ 108 #define SSL_aRSA 0x00000001U 109 /* DSS auth */ 110 #define SSL_aDSS 0x00000002U 111 /* no auth (i.e. use ADH or AECDH) */ 112 #define SSL_aNULL 0x00000004U 113 /* ECDSA auth*/ 114 #define SSL_aECDSA 0x00000008U 115 /* PSK auth */ 116 #define SSL_aPSK 0x00000010U 117 /* GOST R 34.10-2001 signature auth */ 118 #define SSL_aGOST01 0x00000020U 119 /* SRP auth */ 120 #define SSL_aSRP 0x00000040U 121 /* GOST R 34.10-2012 signature auth */ 122 #define SSL_aGOST12 0x00000080U 123 /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */ 124 #define SSL_aANY 0x00000000U 125 /* All bits requiring a certificate */ 126 #define SSL_aCERT \ 127 (SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12) 128 129 /* Bits for algorithm_enc (symmetric encryption) */ 130 #define SSL_DES 0x00000001U 131 #define SSL_3DES 0x00000002U 132 #define SSL_RC4 0x00000004U 133 #define SSL_RC2 0x00000008U 134 #define SSL_IDEA 0x00000010U 135 #define SSL_eNULL 0x00000020U 136 #define SSL_AES128 0x00000040U 137 #define SSL_AES256 0x00000080U 138 #define SSL_CAMELLIA128 0x00000100U 139 #define SSL_CAMELLIA256 0x00000200U 140 #define SSL_eGOST2814789CNT 0x00000400U 141 #define SSL_SEED 0x00000800U 142 #define SSL_AES128GCM 0x00001000U 143 #define SSL_AES256GCM 0x00002000U 144 #define SSL_AES128CCM 0x00004000U 145 #define SSL_AES256CCM 0x00008000U 146 #define SSL_AES128CCM8 0x00010000U 147 #define SSL_AES256CCM8 0x00020000U 148 #define SSL_eGOST2814789CNT12 0x00040000U 149 #define SSL_CHACHA20POLY1305 0x00080000U 150 #define SSL_ARIA128GCM 0x00100000U 151 #define SSL_ARIA256GCM 0x00200000U 152 #define SSL_MAGMA 0x00400000U 153 #define SSL_KUZNYECHIK 0x00800000U 154 155 #define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM) 156 #define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8) 157 #define SSL_AES (SSL_AES128 | SSL_AES256 | SSL_AESGCM | SSL_AESCCM) 158 #define SSL_CAMELLIA (SSL_CAMELLIA128 | SSL_CAMELLIA256) 159 #define SSL_CHACHA20 (SSL_CHACHA20POLY1305) 160 #define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM) 161 #define SSL_ARIA (SSL_ARIAGCM) 162 #define SSL_CBC (SSL_DES | SSL_3DES | SSL_RC2 | SSL_IDEA \ 163 | SSL_AES128 | SSL_AES256 | SSL_CAMELLIA128 \ 164 | SSL_CAMELLIA256 | SSL_SEED) 165 166 /* Bits for algorithm_mac (symmetric authentication) */ 167 168 #define SSL_MD5 0x00000001U 169 #define SSL_SHA1 0x00000002U 170 #define SSL_GOST94 0x00000004U 171 #define SSL_GOST89MAC 0x00000008U 172 #define SSL_SHA256 0x00000010U 173 #define SSL_SHA384 0x00000020U 174 /* Not a real MAC, just an indication it is part of cipher */ 175 #define SSL_AEAD 0x00000040U 176 #define SSL_GOST12_256 0x00000080U 177 #define SSL_GOST89MAC12 0x00000100U 178 #define SSL_GOST12_512 0x00000200U 179 #define SSL_MAGMAOMAC 0x00000400U 180 #define SSL_KUZNYECHIKOMAC 0x00000800U 181 182 /* 183 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make 184 * sure to update this constant too 185 */ 186 187 #define SSL_MD_MD5_IDX 0 188 #define SSL_MD_SHA1_IDX 1 189 #define SSL_MD_GOST94_IDX 2 190 #define SSL_MD_GOST89MAC_IDX 3 191 #define SSL_MD_SHA256_IDX 4 192 #define SSL_MD_SHA384_IDX 5 193 #define SSL_MD_GOST12_256_IDX 6 194 #define SSL_MD_GOST89MAC12_IDX 7 195 #define SSL_MD_GOST12_512_IDX 8 196 #define SSL_MD_MD5_SHA1_IDX 9 197 #define SSL_MD_SHA224_IDX 10 198 #define SSL_MD_SHA512_IDX 11 199 #define SSL_MD_MAGMAOMAC_IDX 12 200 #define SSL_MD_KUZNYECHIKOMAC_IDX 13 201 #define SSL_MAX_DIGEST 14 202 203 #define SSL_MD_NUM_IDX SSL_MAX_DIGEST 204 205 /* Bits for algorithm2 (handshake digests and other extra flags) */ 206 207 /* Bits 0-7 are handshake MAC */ 208 #define SSL_HANDSHAKE_MAC_MASK 0xFF 209 #define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX 210 #define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX 211 #define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX 212 #define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX 213 #define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX 214 #define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX 215 #define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1 216 217 /* Bits 8-15 bits are PRF */ 218 #define TLS1_PRF_DGST_SHIFT 8 219 #define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT) 220 #define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT) 221 #define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT) 222 #define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT) 223 #define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT) 224 #define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT) 225 #define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT) 226 227 /* 228 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also 229 * goes into algorithm2) 230 */ 231 #define TLS1_STREAM_MAC 0x10000 232 /* 233 * TLSTREE cipher/mac key derivation from draft-smyshlyaev-tls12-gost-suites 234 * (currently this also goes into algorithm2) 235 */ 236 #define TLS1_TLSTREE 0x20000 237 238 /* Ciphersuite supported in QUIC */ 239 #define SSL_QUIC 0x00040000U 240 241 #define SSL_STRONG_MASK 0x0000001FU 242 #define SSL_DEFAULT_MASK 0X00000020U 243 244 #define SSL_STRONG_NONE 0x00000001U 245 #define SSL_LOW 0x00000002U 246 #define SSL_MEDIUM 0x00000004U 247 #define SSL_HIGH 0x00000008U 248 #define SSL_FIPS 0x00000010U 249 #define SSL_NOT_DEFAULT 0x00000020U 250 251 /* we have used 0000003f - 26 bits left to go */ 252 253 /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */ 254 #define SSL3_CK_CIPHERSUITE_FLAG 0x03000000 255 256 /* Check if an SSL structure is using DTLS */ 257 #define SSL_CONNECTION_IS_DTLS(s) \ 258 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) 259 260 /* Check if an SSL_CTX structure is using DTLS */ 261 #define SSL_CTX_IS_DTLS(ctx) \ 262 (ctx->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) 263 264 /* Check if we are using TLSv1.3 */ 265 #define SSL_CONNECTION_IS_TLS13(s) (!SSL_CONNECTION_IS_DTLS(s) \ 266 && SSL_CONNECTION_GET_SSL(s)->method->version >= TLS1_3_VERSION \ 267 && SSL_CONNECTION_GET_SSL(s)->method->version != TLS_ANY_VERSION) 268 269 #define SSL_CONNECTION_TREAT_AS_TLS13(s) \ 270 (SSL_CONNECTION_IS_TLS13(s) \ 271 || (s)->early_data_state == SSL_EARLY_DATA_CONNECTING \ 272 || (s)->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY \ 273 || (s)->early_data_state == SSL_EARLY_DATA_WRITING \ 274 || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \ 275 || (s)->hello_retry_request == SSL_HRR_PENDING) 276 277 #define SSL_IS_FIRST_HANDSHAKE(s) ((s)->s3.tmp.finish_md_len == 0 \ 278 || (s)->s3.tmp.peer_finish_md_len == 0) 279 280 /* 281 * See if we use signature algorithms extension and signature algorithm 282 * before signatures. 283 */ 284 #define SSL_USE_SIGALGS(s) \ 285 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS) 286 /* 287 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may 288 * apply to others in future. 289 */ 290 #define SSL_USE_TLS1_2_CIPHERS(s) \ 291 (SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS) 292 293 #define IS_MAX_FRAGMENT_LENGTH_EXT_VALID(value) \ 294 (((value) >= TLSEXT_max_fragment_length_512) && ((value) <= TLSEXT_max_fragment_length_4096)) 295 #define USE_MAX_FRAGMENT_LENGTH_EXT(session) \ 296 IS_MAX_FRAGMENT_LENGTH_EXT_VALID(session->ext.max_fragment_len_mode) 297 #define GET_MAX_FRAGMENT_LENGTH(session) \ 298 (512U << (session->ext.max_fragment_len_mode - 1)) 299 300 #define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ) 301 #define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE) 302 303 #define SSL_IS_QUIC_HANDSHAKE(s) (((s)->s3.flags & TLS1_FLAGS_QUIC) != 0) 304 #define SSL_IS_QUIC_INT_HANDSHAKE(s) (((s)->s3.flags & TLS1_FLAGS_QUIC_INTERNAL) != 0) 305 306 /* no end of early data */ 307 #define SSL_NO_EOED(s) SSL_IS_QUIC_HANDSHAKE(s) 308 309 /* alert_dispatch values */ 310 311 /* No alert pending */ 312 #define SSL_ALERT_DISPATCH_NONE 0 313 /* Alert pending */ 314 #define SSL_ALERT_DISPATCH_PENDING 1 315 /* Pending alert write needs to be retried */ 316 #define SSL_ALERT_DISPATCH_RETRY 2 317 318 /* Mostly for SSLv3 */ 319 #define SSL_PKEY_RSA 0 320 #define SSL_PKEY_RSA_PSS_SIGN 1 321 #define SSL_PKEY_DSA_SIGN 2 322 #define SSL_PKEY_ECC 3 323 #define SSL_PKEY_GOST01 4 324 #define SSL_PKEY_GOST12_256 5 325 #define SSL_PKEY_GOST12_512 6 326 #define SSL_PKEY_ED25519 7 327 #define SSL_PKEY_ED448 8 328 #define SSL_PKEY_NUM 9 329 330 #define SSL_ENC_DES_IDX 0 331 #define SSL_ENC_3DES_IDX 1 332 #define SSL_ENC_RC4_IDX 2 333 #define SSL_ENC_RC2_IDX 3 334 #define SSL_ENC_IDEA_IDX 4 335 #define SSL_ENC_NULL_IDX 5 336 #define SSL_ENC_AES128_IDX 6 337 #define SSL_ENC_AES256_IDX 7 338 #define SSL_ENC_CAMELLIA128_IDX 8 339 #define SSL_ENC_CAMELLIA256_IDX 9 340 #define SSL_ENC_GOST89_IDX 10 341 #define SSL_ENC_SEED_IDX 11 342 #define SSL_ENC_AES128GCM_IDX 12 343 #define SSL_ENC_AES256GCM_IDX 13 344 #define SSL_ENC_AES128CCM_IDX 14 345 #define SSL_ENC_AES256CCM_IDX 15 346 #define SSL_ENC_AES128CCM8_IDX 16 347 #define SSL_ENC_AES256CCM8_IDX 17 348 #define SSL_ENC_GOST8912_IDX 18 349 #define SSL_ENC_CHACHA_IDX 19 350 #define SSL_ENC_ARIA128GCM_IDX 20 351 #define SSL_ENC_ARIA256GCM_IDX 21 352 #define SSL_ENC_MAGMA_IDX 22 353 #define SSL_ENC_KUZNYECHIK_IDX 23 354 #define SSL_ENC_NUM_IDX 24 355 356 /*- 357 * SSL_kRSA <- RSA_ENC 358 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) 359 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN 360 * SSL_aRSA <- RSA_ENC | RSA_SIGN 361 * SSL_aDSS <- DSA_SIGN 362 */ 363 364 /* Certificate Type State */ 365 #define OSSL_CERT_TYPE_CTOS_NONE 0 366 #define OSSL_CERT_TYPE_CTOS_GOOD 1 367 #define OSSL_CERT_TYPE_CTOS_ERROR 2 368 369 /* Post-Handshake Authentication state */ 370 typedef enum { 371 SSL_PHA_NONE = 0, 372 SSL_PHA_EXT_SENT, /* client-side only: extension sent */ 373 SSL_PHA_EXT_RECEIVED, /* server-side only: extension received */ 374 SSL_PHA_REQUEST_PENDING, /* server-side only: request pending */ 375 SSL_PHA_REQUESTED /* request received by client, or sent by server */ 376 } SSL_PHA_STATE; 377 378 /* CipherSuite length. SSLv3 and all TLS versions. */ 379 #define TLS_CIPHER_LEN 2 380 /* used to hold info on the particular ciphers used */ 381 struct ssl_cipher_st { 382 uint32_t valid; 383 const char *name; /* text name */ 384 const char *stdname; /* RFC name */ 385 uint32_t id; /* id, 4 bytes, first is version */ 386 /* 387 * changed in 1.0.0: these four used to be portions of a single value 388 * 'algorithms' 389 */ 390 uint32_t algorithm_mkey; /* key exchange algorithm */ 391 uint32_t algorithm_auth; /* server authentication */ 392 uint32_t algorithm_enc; /* symmetric encryption */ 393 uint32_t algorithm_mac; /* symmetric authentication */ 394 int min_tls; /* minimum SSL/TLS protocol version */ 395 int max_tls; /* maximum SSL/TLS protocol version */ 396 int min_dtls; /* minimum DTLS protocol version */ 397 int max_dtls; /* maximum DTLS protocol version */ 398 uint32_t algo_strength; /* strength and export flags */ 399 uint32_t algorithm2; /* Extra flags */ 400 int32_t strength_bits; /* Number of bits really used */ 401 uint32_t alg_bits; /* Number of bits for algorithm */ 402 }; 403 404 /* Used to hold SSL/TLS functions */ 405 struct ssl_method_st { 406 int version; 407 unsigned flags; 408 uint64_t mask; 409 SSL *(*ssl_new)(SSL_CTX *ctx); 410 void (*ssl_free)(SSL *s); 411 int (*ssl_reset)(SSL *s); 412 int (*ssl_init)(SSL *s); 413 int (*ssl_clear)(SSL *s); 414 void (*ssl_deinit)(SSL *s); 415 int (*ssl_accept)(SSL *s); 416 int (*ssl_connect)(SSL *s); 417 int (*ssl_read)(SSL *s, void *buf, size_t len, size_t *readbytes); 418 int (*ssl_peek)(SSL *s, void *buf, size_t len, size_t *readbytes); 419 int (*ssl_write)(SSL *s, const void *buf, size_t len, size_t *written); 420 int (*ssl_shutdown)(SSL *s); 421 int (*ssl_renegotiate)(SSL *s); 422 int (*ssl_renegotiate_check)(SSL *s, int); 423 int (*ssl_read_bytes)(SSL *s, uint8_t type, uint8_t *recvd_type, 424 unsigned char *buf, size_t len, int peek, 425 size_t *readbytes); 426 int (*ssl_write_bytes)(SSL *s, uint8_t type, const void *buf_, size_t len, 427 size_t *written); 428 int (*ssl_dispatch_alert)(SSL *s); 429 long (*ssl_ctrl)(SSL *s, int cmd, long larg, void *parg); 430 long (*ssl_ctx_ctrl)(SSL_CTX *ctx, int cmd, long larg, void *parg); 431 const SSL_CIPHER *(*get_cipher_by_char)(const unsigned char *ptr); 432 int (*put_cipher_by_char)(const SSL_CIPHER *cipher, WPACKET *pkt, 433 size_t *len); 434 size_t (*ssl_pending)(const SSL *s); 435 int (*num_ciphers)(void); 436 const SSL_CIPHER *(*get_cipher)(unsigned ncipher); 437 OSSL_TIME (*get_timeout)(void); 438 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */ 439 int (*ssl_version)(void); 440 long (*ssl_callback_ctrl)(SSL *s, int cb_id, void (*fp)(void)); 441 long (*ssl_ctx_callback_ctrl)(SSL_CTX *s, int cb_id, void (*fp)(void)); 442 }; 443 444 /* 445 * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for 446 * consistency, even in the event of OPENSSL_NO_PSK being defined. 447 */ 448 #define TLS13_MAX_RESUMPTION_PSK_LENGTH 512 449 450 /*- 451 * Lets make this into an ASN.1 type structure as follows 452 * SSL_SESSION_ID ::= SEQUENCE { 453 * version INTEGER, -- structure version number 454 * SSLversion INTEGER, -- SSL version number 455 * Cipher OCTET STRING, -- the 3 byte cipher ID 456 * Session_ID OCTET STRING, -- the Session ID 457 * Master_key OCTET STRING, -- the master key 458 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument 459 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time 460 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds 461 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate 462 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context 463 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer' 464 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension 465 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint 466 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity 467 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket 468 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only) 469 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method 470 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username 471 * flags [ 13 ] EXPLICIT INTEGER -- optional flags 472 * } 473 * Look in ssl/ssl_asn1.c for more details 474 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-). 475 */ 476 struct ssl_session_st { 477 int ssl_version; /* what ssl version session info is being kept 478 * in here? */ 479 size_t master_key_length; 480 481 /* TLSv1.3 early_secret used for external PSKs */ 482 unsigned char early_secret[EVP_MAX_MD_SIZE]; 483 /* 484 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption 485 * PSK 486 */ 487 unsigned char master_key[TLS13_MAX_RESUMPTION_PSK_LENGTH]; 488 /* session_id - valid? */ 489 size_t session_id_length; 490 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; 491 /* 492 * this is used to determine whether the session is being reused in the 493 * appropriate context. It is up to the application to set this, via 494 * SSL_new 495 */ 496 size_t sid_ctx_length; 497 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; 498 #ifndef OPENSSL_NO_PSK 499 char *psk_identity_hint; 500 char *psk_identity; 501 #endif 502 /* 503 * Used to indicate that session resumption is not allowed. Applications 504 * can also set this bit for a new session via not_resumable_session_cb 505 * to disable session caching and tickets. 506 */ 507 int not_resumable; 508 /* Peer raw public key, if available */ 509 EVP_PKEY *peer_rpk; 510 /* This is the cert and type for the other end. */ 511 X509 *peer; 512 /* Certificate chain peer sent. */ 513 STACK_OF(X509) *peer_chain; 514 /* 515 * when app_verify_callback accepts a session where the peer's 516 * certificate is not ok, we must remember the error for session reuse: 517 */ 518 long verify_result; /* only for servers */ 519 OSSL_TIME timeout; 520 OSSL_TIME time; 521 OSSL_TIME calc_timeout; 522 unsigned int compress_meth; /* Need to lookup the method */ 523 const SSL_CIPHER *cipher; 524 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to 525 * load the 'cipher' structure */ 526 unsigned int kex_group; /* TLS group from key exchange */ 527 CRYPTO_EX_DATA ex_data; /* application specific data */ 528 529 struct { 530 char *hostname; 531 /* RFC4507 info */ 532 unsigned char *tick; /* Session ticket */ 533 size_t ticklen; /* Session ticket length */ 534 /* Session lifetime hint in seconds */ 535 unsigned long tick_lifetime_hint; 536 uint32_t tick_age_add; 537 /* Max number of bytes that can be sent as early data */ 538 uint32_t max_early_data; 539 /* The ALPN protocol selected for this session */ 540 unsigned char *alpn_selected; 541 size_t alpn_selected_len; 542 /* 543 * Maximum Fragment Length as per RFC 4366. 544 * If this value does not contain RFC 4366 allowed values (1-4) then 545 * either the Maximum Fragment Length Negotiation failed or was not 546 * performed at all. 547 */ 548 uint8_t max_fragment_len_mode; 549 } ext; 550 #ifndef OPENSSL_NO_SRP 551 char *srp_username; 552 #endif 553 unsigned char *ticket_appdata; 554 size_t ticket_appdata_len; 555 uint32_t flags; 556 SSL_CTX *owner; 557 558 /* 559 * These are used to make removal of session-ids more efficient and to 560 * implement a maximum cache size. Access requires protection of ctx->lock. 561 */ 562 struct ssl_session_st *prev, *next; 563 CRYPTO_REF_COUNT references; 564 }; 565 566 /* Extended master secret support */ 567 #define SSL_SESS_FLAG_EXTMS 0x1 568 569 #ifndef OPENSSL_NO_SRP 570 571 typedef struct srp_ctx_st { 572 /* param for all the callbacks */ 573 void *SRP_cb_arg; 574 /* set client Hello login callback */ 575 int (*TLS_ext_srp_username_callback)(SSL *, int *, void *); 576 /* set SRP N/g param callback for verification */ 577 int (*SRP_verify_param_callback)(SSL *, void *); 578 /* set SRP client passwd callback */ 579 char *(*SRP_give_srp_client_pwd_callback)(SSL *, void *); 580 char *login; 581 BIGNUM *N, *g, *s, *B, *A; 582 BIGNUM *a, *b, *v; 583 char *info; 584 int strength; 585 unsigned long srp_Mask; 586 } SRP_CTX; 587 588 #endif 589 590 typedef enum { 591 SSL_EARLY_DATA_NONE = 0, 592 SSL_EARLY_DATA_CONNECT_RETRY, 593 SSL_EARLY_DATA_CONNECTING, 594 SSL_EARLY_DATA_WRITE_RETRY, 595 SSL_EARLY_DATA_WRITING, 596 SSL_EARLY_DATA_WRITE_FLUSH, 597 SSL_EARLY_DATA_UNAUTH_WRITING, 598 SSL_EARLY_DATA_FINISHED_WRITING, 599 SSL_EARLY_DATA_ACCEPT_RETRY, 600 SSL_EARLY_DATA_ACCEPTING, 601 SSL_EARLY_DATA_READ_RETRY, 602 SSL_EARLY_DATA_READING, 603 SSL_EARLY_DATA_FINISHED_READING 604 } SSL_EARLY_DATA_STATE; 605 606 /* 607 * We check that the amount of unreadable early data doesn't exceed 608 * max_early_data. max_early_data is given in plaintext bytes. However if it is 609 * unreadable then we only know the number of ciphertext bytes. We also don't 610 * know how much the overhead should be because it depends on the ciphersuite. 611 * We make a small allowance. We assume 5 records of actual data plus the end 612 * of early data alert record. Each record has a tag and a content type byte. 613 * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the 614 * content of the alert record either which is 2 bytes. 615 */ 616 #define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2) 617 618 /* 619 * The allowance we have between the client's calculated ticket age and our own. 620 * We allow for 10 seconds. If a ticket is presented and the 621 * client's age calculation is different by more than this than our own then we 622 * do not allow that ticket for early_data. 623 */ 624 #define TICKET_AGE_ALLOWANCE ossl_seconds2time(10) 625 626 #define MAX_COMPRESSIONS_SIZE 255 627 628 typedef struct raw_extension_st { 629 /* Raw packet data for the extension */ 630 PACKET data; 631 /* Set to 1 if the extension is present or 0 otherwise */ 632 int present; 633 /* Set to 1 if we have already parsed the extension or 0 otherwise */ 634 int parsed; 635 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */ 636 unsigned int type; 637 /* Track what order extensions are received in (0-based). */ 638 size_t received_order; 639 } RAW_EXTENSION; 640 641 typedef struct { 642 unsigned int isv2; 643 unsigned int legacy_version; 644 unsigned char random[SSL3_RANDOM_SIZE]; 645 size_t session_id_len; 646 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; 647 size_t dtls_cookie_len; 648 unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH]; 649 PACKET ciphersuites; 650 size_t compressions_len; 651 unsigned char compressions[MAX_COMPRESSIONS_SIZE]; 652 PACKET extensions; 653 size_t pre_proc_exts_len; 654 RAW_EXTENSION *pre_proc_exts; 655 } CLIENTHELLO_MSG; 656 657 /* 658 * Extension index values NOTE: Any updates to these defines should be mirrored 659 * with equivalent updates to ext_defs in extensions.c 660 */ 661 typedef enum tlsext_index_en { 662 TLSEXT_IDX_renegotiate, 663 TLSEXT_IDX_server_name, 664 TLSEXT_IDX_max_fragment_length, 665 TLSEXT_IDX_srp, 666 TLSEXT_IDX_ec_point_formats, 667 TLSEXT_IDX_supported_groups, 668 TLSEXT_IDX_session_ticket, 669 TLSEXT_IDX_status_request, 670 TLSEXT_IDX_next_proto_neg, 671 TLSEXT_IDX_application_layer_protocol_negotiation, 672 TLSEXT_IDX_use_srtp, 673 TLSEXT_IDX_encrypt_then_mac, 674 TLSEXT_IDX_signed_certificate_timestamp, 675 TLSEXT_IDX_extended_master_secret, 676 TLSEXT_IDX_signature_algorithms_cert, 677 TLSEXT_IDX_post_handshake_auth, 678 TLSEXT_IDX_client_cert_type, 679 TLSEXT_IDX_server_cert_type, 680 TLSEXT_IDX_signature_algorithms, 681 TLSEXT_IDX_supported_versions, 682 TLSEXT_IDX_psk_kex_modes, 683 TLSEXT_IDX_key_share, 684 TLSEXT_IDX_cookie, 685 TLSEXT_IDX_cryptopro_bug, 686 TLSEXT_IDX_compress_certificate, 687 TLSEXT_IDX_early_data, 688 TLSEXT_IDX_certificate_authorities, 689 TLSEXT_IDX_padding, 690 TLSEXT_IDX_psk, 691 /* Dummy index - must always be the last entry */ 692 TLSEXT_IDX_num_builtins 693 } TLSEXT_INDEX; 694 695 DEFINE_LHASH_OF_EX(SSL_SESSION); 696 /* Needed in ssl_cert.c */ 697 DEFINE_LHASH_OF_EX(X509_NAME); 698 699 #define TLSEXT_KEYNAME_LENGTH 16 700 #define TLSEXT_TICK_KEY_LENGTH 32 701 702 typedef struct ssl_ctx_ext_secure_st { 703 unsigned char tick_hmac_key[TLSEXT_TICK_KEY_LENGTH]; 704 unsigned char tick_aes_key[TLSEXT_TICK_KEY_LENGTH]; 705 } SSL_CTX_EXT_SECURE; 706 707 /* 708 * Helper function for HMAC 709 * The structure should be considered opaque, it will change once the low 710 * level deprecated calls are removed. At that point it can be replaced 711 * by EVP_MAC_CTX and most of the functions converted to macros or inlined 712 * directly. 713 */ 714 typedef struct ssl_hmac_st { 715 EVP_MAC_CTX *ctx; 716 #ifndef OPENSSL_NO_DEPRECATED_3_0 717 HMAC_CTX *old_ctx; 718 #endif 719 } SSL_HMAC; 720 721 SSL_HMAC *ssl_hmac_new(const SSL_CTX *ctx); 722 void ssl_hmac_free(SSL_HMAC *ctx); 723 #ifndef OPENSSL_NO_DEPRECATED_3_0 724 HMAC_CTX *ssl_hmac_get0_HMAC_CTX(SSL_HMAC *ctx); 725 #endif 726 EVP_MAC_CTX *ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC *ctx); 727 int ssl_hmac_init(SSL_HMAC *ctx, void *key, size_t len, char *md); 728 int ssl_hmac_update(SSL_HMAC *ctx, const unsigned char *data, size_t len); 729 int ssl_hmac_final(SSL_HMAC *ctx, unsigned char *md, size_t *len, 730 size_t max_size); 731 size_t ssl_hmac_size(const SSL_HMAC *ctx); 732 733 int ssl_get_EC_curve_nid(const EVP_PKEY *pkey); 734 __owur int tls13_set_encoded_pub_key(EVP_PKEY *pkey, 735 const unsigned char *enckey, 736 size_t enckeylen); 737 738 typedef struct tls_group_info_st { 739 char *tlsname; /* Curve Name as in TLS specs */ 740 char *realname; /* Curve Name according to provider */ 741 char *algorithm; /* Algorithm name to fetch */ 742 unsigned int secbits; /* Bits of security (from SP800-57) */ 743 uint16_t group_id; /* Group ID */ 744 int mintls; /* Minimum TLS version, -1 unsupported */ 745 int maxtls; /* Maximum TLS version (or 0 for undefined) */ 746 int mindtls; /* Minimum DTLS version, -1 unsupported */ 747 int maxdtls; /* Maximum DTLS version (or 0 for undefined) */ 748 char is_kem; /* Mode for this Group: 0 is KEX, 1 is KEM */ 749 } TLS_GROUP_INFO; 750 751 typedef struct tls_sigalg_info_st { 752 char *name; /* name as in IANA TLS specs */ 753 uint16_t code_point; /* IANA-specified code point of sigalg-name */ 754 char *sigalg_name; /* (combined) sigalg name */ 755 char *sigalg_oid; /* (combined) sigalg OID */ 756 char *sig_name; /* pure signature algorithm name */ 757 char *sig_oid; /* pure signature algorithm OID */ 758 char *hash_name; /* hash algorithm name */ 759 char *hash_oid; /* hash algorithm OID */ 760 char *keytype; /* keytype name */ 761 char *keytype_oid; /* keytype OID */ 762 unsigned int secbits; /* Bits of security (from SP800-57) */ 763 int mintls; /* Minimum TLS version, -1 unsupported */ 764 int maxtls; /* Maximum TLS version (or 0 for undefined) */ 765 int mindtls; /* Minimum DTLS version, -1 unsupported */ 766 int maxdtls; /* Maximum DTLS version (or 0 for undefined) */ 767 } TLS_SIGALG_INFO; 768 769 /* 770 * Structure containing table entry of certificate info corresponding to 771 * CERT_PKEY entries 772 */ 773 typedef struct { 774 int pkey_nid; /* NID of public key algorithm */ 775 uint32_t amask; /* authmask corresponding to key type */ 776 } SSL_CERT_LOOKUP; 777 778 /* flags values */ 779 #define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */ 780 #define TLS_GROUP_CURVE_PRIME 0x00000001U 781 #define TLS_GROUP_CURVE_CHAR2 0x00000002U 782 #define TLS_GROUP_CURVE_CUSTOM 0x00000004U 783 #define TLS_GROUP_FFDHE 0x00000008U 784 #define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U 785 786 #define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE | TLS_GROUP_ONLY_FOR_TLS1_3) 787 788 /* We limit the number of key shares sent */ 789 #ifndef OPENSSL_CLIENT_MAX_KEY_SHARES 790 #define OPENSSL_CLIENT_MAX_KEY_SHARES 4 791 #endif 792 793 struct ssl_ctx_st { 794 OSSL_LIB_CTX *libctx; 795 796 const SSL_METHOD *method; 797 STACK_OF(SSL_CIPHER) *cipher_list; 798 /* same as above but sorted for lookup */ 799 STACK_OF(SSL_CIPHER) *cipher_list_by_id; 800 /* TLSv1.3 specific ciphersuites */ 801 STACK_OF(SSL_CIPHER) *tls13_ciphersuites; 802 struct x509_store_st /* X509_STORE */ *cert_store; 803 LHASH_OF(SSL_SESSION) *sessions; 804 /* 805 * Most session-ids that will be cached, default is 806 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. 807 */ 808 size_t session_cache_size; 809 struct ssl_session_st *session_cache_head; 810 struct ssl_session_st *session_cache_tail; 811 /* 812 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT, 813 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which 814 * means only SSL_accept will cache SSL_SESSIONS. 815 */ 816 uint32_t session_cache_mode; 817 /* 818 * If timeout is not 0, it is the default timeout value set when 819 * SSL_new() is called. This has been put in to make life easier to set 820 * things up 821 */ 822 OSSL_TIME session_timeout; 823 /* 824 * If this callback is not null, it will be called each time a session id 825 * is added to the cache. If this function returns 1, it means that the 826 * callback will do an SSL_SESSION_free() when it has finished using it. 827 * Otherwise, on 0, it means the callback has finished with it. If 828 * remove_session_cb is not null, it will be called when a session-id is 829 * removed from the cache. After the call, OpenSSL will 830 * SSL_SESSION_free() it. 831 */ 832 int (*new_session_cb)(struct ssl_st *ssl, SSL_SESSION *sess); 833 void (*remove_session_cb)(struct ssl_ctx_st *ctx, SSL_SESSION *sess); 834 SSL_SESSION *(*get_session_cb)(struct ssl_st *ssl, 835 const unsigned char *data, int len, 836 int *copy); 837 struct { 838 TSAN_QUALIFIER int sess_connect; /* SSL new conn - started */ 839 TSAN_QUALIFIER int sess_connect_renegotiate; /* SSL reneg - requested */ 840 TSAN_QUALIFIER int sess_connect_good; /* SSL new conne/reneg - finished */ 841 TSAN_QUALIFIER int sess_accept; /* SSL new accept - started */ 842 TSAN_QUALIFIER int sess_accept_renegotiate; /* SSL reneg - requested */ 843 TSAN_QUALIFIER int sess_accept_good; /* SSL accept/reneg - finished */ 844 TSAN_QUALIFIER int sess_miss; /* session lookup misses */ 845 TSAN_QUALIFIER int sess_timeout; /* reuse attempt on timeouted session */ 846 TSAN_QUALIFIER int sess_cache_full; /* session removed due to full cache */ 847 TSAN_QUALIFIER int sess_hit; /* session reuse actually done */ 848 TSAN_QUALIFIER int sess_cb_hit; /* session-id that was not in 849 * the cache was passed back via 850 * the callback. This indicates 851 * that the application is 852 * supplying session-id's from 853 * other processes - spooky 854 * :-) */ 855 } stats; 856 #ifdef TSAN_REQUIRES_LOCKING 857 CRYPTO_RWLOCK *tsan_lock; 858 #endif 859 860 CRYPTO_REF_COUNT references; 861 862 /* if defined, these override the X509_verify_cert() calls */ 863 int (*app_verify_callback)(X509_STORE_CTX *, void *); 864 void *app_verify_arg; 865 /* 866 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored 867 * ('app_verify_callback' was called with just one argument) 868 */ 869 870 /* Default password callback. */ 871 pem_password_cb *default_passwd_callback; 872 873 /* Default password callback user data. */ 874 void *default_passwd_callback_userdata; 875 876 /* get client cert callback */ 877 int (*client_cert_cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey); 878 879 /* cookie generate callback */ 880 int (*app_gen_cookie_cb)(SSL *ssl, unsigned char *cookie, 881 unsigned int *cookie_len); 882 883 /* verify cookie callback */ 884 int (*app_verify_cookie_cb)(SSL *ssl, const unsigned char *cookie, 885 unsigned int cookie_len); 886 887 /* TLS1.3 app-controlled cookie generate callback */ 888 int (*gen_stateless_cookie_cb)(SSL *ssl, unsigned char *cookie, 889 size_t *cookie_len); 890 891 /* TLS1.3 verify app-controlled cookie callback */ 892 int (*verify_stateless_cookie_cb)(SSL *ssl, const unsigned char *cookie, 893 size_t cookie_len); 894 895 CRYPTO_EX_DATA ex_data; 896 897 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */ 898 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3-sha1' */ 899 900 STACK_OF(X509) *extra_certs; 901 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */ 902 903 /* Default values used when no per-SSL value is defined follow */ 904 905 /* used if SSL's info_callback is NULL */ 906 void (*info_callback)(const SSL *ssl, int type, int val); 907 908 /* 909 * What we put in certificate_authorities extension for TLS 1.3 910 * (ClientHello and CertificateRequest) or just client cert requests for 911 * earlier versions. If client_ca_names is populated then it is only used 912 * for client cert requests, and in preference to ca_names. 913 */ 914 STACK_OF(X509_NAME) *ca_names; 915 STACK_OF(X509_NAME) *client_ca_names; 916 917 /* 918 * Default values to use in SSL structures follow (these are copied by 919 * SSL_new) 920 */ 921 922 uint64_t options; 923 uint32_t mode; 924 int min_proto_version; 925 int max_proto_version; 926 size_t max_cert_list; 927 928 struct cert_st /* CERT */ *cert; 929 SSL_CERT_LOOKUP *ssl_cert_info; 930 int read_ahead; 931 932 /* callback that allows applications to peek at protocol messages */ 933 ossl_msg_cb msg_callback; 934 void *msg_callback_arg; 935 936 uint32_t verify_mode; 937 size_t sid_ctx_length; 938 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; 939 /* called 'verify_callback' in the SSL */ 940 int (*default_verify_callback)(int ok, X509_STORE_CTX *ctx); 941 942 /* Default generate session ID callback. */ 943 GEN_SESSION_CB generate_session_id; 944 945 X509_VERIFY_PARAM *param; 946 947 int quiet_shutdown; 948 949 #ifndef OPENSSL_NO_CT 950 CTLOG_STORE *ctlog_store; /* CT Log Store */ 951 /* 952 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient. 953 * If they are not, the connection should be aborted. 954 */ 955 ssl_ct_validation_cb ct_validation_callback; 956 void *ct_validation_callback_arg; 957 #endif 958 959 /* 960 * If we're using more than one pipeline how should we divide the data 961 * up between the pipes? 962 */ 963 size_t split_send_fragment; 964 /* 965 * Maximum amount of data to send in one fragment. actual record size can 966 * be more than this due to padding and MAC overheads. 967 */ 968 size_t max_send_fragment; 969 970 /* Up to how many pipelines should we use? If 0 then 1 is assumed */ 971 size_t max_pipelines; 972 973 /* The default read buffer length to use (0 means not set) */ 974 size_t default_read_buf_len; 975 976 #ifndef OPENSSL_NO_ENGINE 977 /* 978 * Engine to pass requests for client certs to 979 */ 980 ENGINE *client_cert_engine; 981 #endif 982 983 /* ClientHello callback. Mostly for extensions, but not entirely. */ 984 SSL_client_hello_cb_fn client_hello_cb; 985 void *client_hello_cb_arg; 986 987 /* Callback to announce new pending ssl objects in the accept queue */ 988 SSL_new_pending_conn_cb_fn new_pending_conn_cb; 989 void *new_pending_conn_arg; 990 991 /* TLS extensions. */ 992 struct { 993 /* TLS extensions servername callback */ 994 int (*servername_cb)(SSL *, int *, void *); 995 void *servername_arg; 996 /* RFC 4507 session ticket keys */ 997 unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH]; 998 SSL_CTX_EXT_SECURE *secure; 999 #ifndef OPENSSL_NO_DEPRECATED_3_0 1000 /* Callback to support customisation of ticket key setting */ 1001 int (*ticket_key_cb)(SSL *ssl, 1002 unsigned char *name, unsigned char *iv, 1003 EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc); 1004 #endif 1005 int (*ticket_key_evp_cb)(SSL *ssl, 1006 unsigned char *name, unsigned char *iv, 1007 EVP_CIPHER_CTX *ectx, EVP_MAC_CTX *hctx, 1008 int enc); 1009 1010 /* certificate status request info */ 1011 /* Callback for status request */ 1012 int (*status_cb)(SSL *ssl, void *arg); 1013 void *status_arg; 1014 /* ext status type used for CSR extension (OCSP Stapling) */ 1015 int status_type; 1016 /* RFC 4366 Maximum Fragment Length Negotiation */ 1017 uint8_t max_fragment_len_mode; 1018 1019 /* EC extension values inherited by SSL structure */ 1020 size_t ecpointformats_len; 1021 unsigned char *ecpointformats; 1022 1023 size_t supportedgroups_len; 1024 uint16_t *supportedgroups; 1025 1026 size_t keyshares_len; 1027 uint16_t *keyshares; 1028 1029 size_t tuples_len; /* Number of group tuples */ 1030 size_t *tuples; /* Number of groups in each group tuple */ 1031 1032 /* 1033 * ALPN information (we are in the process of transitioning from NPN to 1034 * ALPN.) 1035 */ 1036 1037 /*- 1038 * For a server, this contains a callback function that allows the 1039 * server to select the protocol for the connection. 1040 * out: on successful return, this must point to the raw protocol 1041 * name (without the length prefix). 1042 * outlen: on successful return, this contains the length of |*out|. 1043 * in: points to the client's list of supported protocols in 1044 * wire-format. 1045 * inlen: the length of |in|. 1046 */ 1047 int (*alpn_select_cb)(SSL *s, 1048 const unsigned char **out, 1049 unsigned char *outlen, 1050 const unsigned char *in, 1051 unsigned int inlen, void *arg); 1052 void *alpn_select_cb_arg; 1053 1054 /* 1055 * For a client, this contains the list of supported protocols in wire 1056 * format. 1057 */ 1058 unsigned char *alpn; 1059 size_t alpn_len; 1060 1061 #ifndef OPENSSL_NO_NEXTPROTONEG 1062 /* Next protocol negotiation information */ 1063 1064 /* 1065 * For a server, this contains a callback function by which the set of 1066 * advertised protocols can be provided. 1067 */ 1068 SSL_CTX_npn_advertised_cb_func npn_advertised_cb; 1069 void *npn_advertised_cb_arg; 1070 /* 1071 * For a client, this contains a callback function that selects the next 1072 * protocol from the list provided by the server. 1073 */ 1074 SSL_CTX_npn_select_cb_func npn_select_cb; 1075 void *npn_select_cb_arg; 1076 #endif 1077 1078 unsigned char cookie_hmac_key[SHA256_DIGEST_LENGTH]; 1079 } ext; 1080 1081 #ifndef OPENSSL_NO_PSK 1082 SSL_psk_client_cb_func psk_client_callback; 1083 SSL_psk_server_cb_func psk_server_callback; 1084 #endif 1085 SSL_psk_find_session_cb_func psk_find_session_cb; 1086 SSL_psk_use_session_cb_func psk_use_session_cb; 1087 1088 #ifndef OPENSSL_NO_SRP 1089 SRP_CTX srp_ctx; /* ctx for SRP authentication */ 1090 #endif 1091 1092 /* Shared DANE context */ 1093 struct dane_ctx_st dane; 1094 1095 #ifndef OPENSSL_NO_SRTP 1096 /* SRTP profiles we are willing to do from RFC 5764 */ 1097 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; 1098 #endif 1099 /* 1100 * Callback for disabling session caching and ticket support on a session 1101 * basis, depending on the chosen cipher. 1102 */ 1103 int (*not_resumable_session_cb)(SSL *ssl, int is_forward_secure); 1104 1105 CRYPTO_RWLOCK *lock; 1106 1107 /* 1108 * Callback for logging key material for use with debugging tools like 1109 * Wireshark. The callback should log `line` followed by a newline. 1110 */ 1111 SSL_CTX_keylog_cb_func keylog_callback; 1112 1113 /* 1114 * Private flag for internal key logging based on SSLKEYLOG env 1115 */ 1116 #ifndef OPENSSL_NO_SSLKEYLOG 1117 uint32_t do_sslkeylog; 1118 #endif 1119 1120 /* 1121 * The maximum number of bytes advertised in session tickets that can be 1122 * sent as early data. 1123 */ 1124 uint32_t max_early_data; 1125 1126 /* 1127 * The maximum number of bytes of early data that a server will tolerate 1128 * (which should be at least as much as max_early_data). 1129 */ 1130 uint32_t recv_max_early_data; 1131 1132 /* TLS1.3 padding callback */ 1133 size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg); 1134 void *record_padding_arg; 1135 size_t block_padding; 1136 size_t hs_padding; 1137 1138 /* Session ticket appdata */ 1139 SSL_CTX_generate_session_ticket_fn generate_ticket_cb; 1140 SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb; 1141 void *ticket_cb_data; 1142 1143 /* The number of TLS1.3 tickets to automatically send */ 1144 size_t num_tickets; 1145 1146 /* Callback to determine if early_data is acceptable or not */ 1147 SSL_allow_early_data_cb_fn allow_early_data_cb; 1148 void *allow_early_data_cb_data; 1149 1150 /* Do we advertise Post-handshake auth support? */ 1151 int pha_enabled; 1152 1153 /* Callback for SSL async handling */ 1154 SSL_async_callback_fn async_cb; 1155 void *async_cb_arg; 1156 1157 char *propq; 1158 1159 int ssl_mac_pkey_id[SSL_MD_NUM_IDX]; 1160 const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]; 1161 const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]; 1162 size_t ssl_mac_secret_size[SSL_MD_NUM_IDX]; 1163 1164 size_t sigalg_lookup_cache_len; 1165 size_t tls12_sigalgs_len; 1166 /* Cache of all sigalgs we know and whether they are available or not */ 1167 struct sigalg_lookup_st *sigalg_lookup_cache; 1168 /* List of all sigalgs (code points) available, incl. from providers */ 1169 uint16_t *tls12_sigalgs; 1170 1171 TLS_GROUP_INFO *group_list; 1172 size_t group_list_len; 1173 size_t group_list_max_len; 1174 1175 TLS_SIGALG_INFO *sigalg_list; 1176 size_t sigalg_list_len; 1177 size_t sigalg_list_max_len; 1178 1179 /* masks of disabled algorithms */ 1180 uint32_t disabled_enc_mask; 1181 uint32_t disabled_mac_mask; 1182 uint32_t disabled_mkey_mask; 1183 uint32_t disabled_auth_mask; 1184 1185 #ifndef OPENSSL_NO_COMP_ALG 1186 /* certificate compression preferences */ 1187 int cert_comp_prefs[TLSEXT_comp_cert_limit]; 1188 #endif 1189 1190 /* Certificate Type stuff - for RPK vs X.509 */ 1191 unsigned char *client_cert_type; 1192 size_t client_cert_type_len; 1193 unsigned char *server_cert_type; 1194 size_t server_cert_type_len; 1195 1196 #ifndef OPENSSL_NO_QUIC 1197 uint64_t domain_flags; 1198 SSL_TOKEN_STORE *tokencache; 1199 #endif 1200 1201 #ifndef OPENSSL_NO_QLOG 1202 char *qlog_title; /* Session title for qlog */ 1203 #endif 1204 }; 1205 1206 typedef struct ossl_quic_tls_callbacks_st { 1207 int (*crypto_send_cb)(SSL *s, const unsigned char *buf, size_t buf_len, 1208 size_t *consumed, void *arg); 1209 int (*crypto_recv_rcd_cb)(SSL *s, const unsigned char **buf, 1210 size_t *bytes_read, void *arg); 1211 int (*crypto_release_rcd_cb)(SSL *s, size_t bytes_read, void *arg); 1212 int (*yield_secret_cb)(SSL *s, uint32_t prot_level, int direction, 1213 const unsigned char *secret, size_t secret_len, 1214 void *arg); 1215 int (*got_transport_params_cb)(SSL *s, const unsigned char *params, 1216 size_t params_len, 1217 void *arg); 1218 int (*alert_cb)(SSL *s, unsigned char alert_code, void *arg); 1219 } OSSL_QUIC_TLS_CALLBACKS; 1220 1221 typedef struct cert_pkey_st CERT_PKEY; 1222 1223 #define SSL_TYPE_SSL_CONNECTION 0 1224 #define SSL_TYPE_QUIC_CONNECTION 0x80 1225 #define SSL_TYPE_QUIC_XSO 0x81 1226 #define SSL_TYPE_QUIC_LISTENER 0x82 1227 #define SSL_TYPE_QUIC_DOMAIN 0x83 1228 1229 #define SSL_TYPE_IS_QUIC(x) (((x) & 0x80) != 0) 1230 1231 struct ssl_st { 1232 int type; 1233 SSL_CTX *ctx; 1234 const SSL_METHOD *defltmeth; 1235 const SSL_METHOD *method; 1236 CRYPTO_REF_COUNT references; 1237 CRYPTO_RWLOCK *lock; 1238 /* extra application data */ 1239 CRYPTO_EX_DATA ex_data; 1240 }; 1241 1242 struct ssl_connection_st { 1243 /* type identifier and common data */ 1244 struct ssl_st ssl; 1245 1246 /* 1247 * The actual end user's SSL object. Could be different to this one for 1248 * QUIC 1249 */ 1250 SSL *user_ssl; 1251 1252 /* 1253 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, 1254 * DTLS1_VERSION) 1255 */ 1256 int version; 1257 /* 1258 * There are 2 BIO's even though they are normally both the same. This 1259 * is so data can be read and written to different handlers 1260 */ 1261 /* used by SSL_read */ 1262 BIO *rbio; 1263 /* used by SSL_write */ 1264 BIO *wbio; 1265 /* used during session-id reuse to concatenate messages */ 1266 BIO *bbio; 1267 /* 1268 * This holds a variable that indicates what we were doing when a 0 or -1 1269 * is returned. This is needed for non-blocking IO so we know what 1270 * request needs re-doing when in SSL_accept or SSL_connect 1271 */ 1272 int rwstate; 1273 int (*handshake_func)(SSL *); 1274 /* 1275 * Imagine that here's a boolean member "init" that is switched as soon 1276 * as SSL_set_{accept/connect}_state is called for the first time, so 1277 * that "state" and "handshake_func" are properly initialized. But as 1278 * handshake_func is == 0 until then, we use this test instead of an 1279 * "init" member. 1280 */ 1281 /* are we the server side? */ 1282 int server; 1283 /* 1284 * Generate a new session or reuse an old one. 1285 * NB: For servers, the 'new' session may actually be a previously 1286 * cached session or even the previous session unless 1287 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set 1288 */ 1289 int new_session; 1290 /* don't send shutdown packets */ 1291 int quiet_shutdown; 1292 /* we have shut things down, 0x01 sent, 0x02 for received */ 1293 int shutdown; 1294 /* Timestamps used to calculate the handshake RTT */ 1295 OSSL_TIME ts_msg_write; 1296 OSSL_TIME ts_msg_read; 1297 /* where we are */ 1298 OSSL_STATEM statem; 1299 SSL_EARLY_DATA_STATE early_data_state; 1300 BUF_MEM *init_buf; /* buffer used during init */ 1301 void *init_msg; /* pointer to handshake message body, set by 1302 * tls_get_message_header() */ 1303 size_t init_num; /* amount read/written */ 1304 size_t init_off; /* amount read/written */ 1305 1306 size_t ssl_pkey_num; 1307 1308 /* QUIC TLS fields */ 1309 OSSL_QUIC_TLS_CALLBACKS qtcb; 1310 void *qtarg; 1311 QUIC_TLS *qtls; 1312 1313 struct { 1314 long flags; 1315 unsigned char server_random[SSL3_RANDOM_SIZE]; 1316 unsigned char client_random[SSL3_RANDOM_SIZE]; 1317 1318 /* used during startup, digest all incoming/outgoing packets */ 1319 BIO *handshake_buffer; 1320 /* 1321 * When handshake digest is determined, buffer is hashed and 1322 * freed and MD_CTX for the required digest is stored here. 1323 */ 1324 EVP_MD_CTX *handshake_dgst; 1325 /* 1326 * Set whenever an expected ChangeCipherSpec message is processed. 1327 * Unset when the peer's Finished message is received. 1328 * Unexpected ChangeCipherSpec messages trigger a fatal alert. 1329 */ 1330 int change_cipher_spec; 1331 int warn_alert; 1332 int fatal_alert; 1333 /* 1334 * we allow one fatal and one warning alert to be outstanding, send close 1335 * alert via the warning alert 1336 */ 1337 int alert_dispatch; 1338 unsigned char send_alert[2]; 1339 /* 1340 * This flag is set when we should renegotiate ASAP, basically when there 1341 * is no more data in the read or write buffers 1342 */ 1343 int renegotiate; 1344 int total_renegotiations; 1345 int num_renegotiations; 1346 int in_read_app_data; 1347 1348 struct { 1349 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ 1350 unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; 1351 size_t finish_md_len; 1352 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; 1353 size_t peer_finish_md_len; 1354 size_t message_size; 1355 int message_type; 1356 /* used to hold the new cipher we are going to use */ 1357 const SSL_CIPHER *new_cipher; 1358 EVP_PKEY *pkey; /* holds short lived key exchange key */ 1359 /* holds the array of short lived key exchange key (pointers) */ 1360 EVP_PKEY *ks_pkey[OPENSSL_CLIENT_MAX_KEY_SHARES]; 1361 uint16_t ks_group_id[OPENSSL_CLIENT_MAX_KEY_SHARES]; /* The IDs of the keyshare keys */ 1362 size_t num_ks_pkey; /* how many keyshares are there */ 1363 /* used for certificate requests */ 1364 int cert_req; 1365 /* Certificate types in certificate request message. */ 1366 uint8_t *ctype; 1367 size_t ctype_len; 1368 /* Certificate authorities list peer sent */ 1369 STACK_OF(X509_NAME) *peer_ca_names; 1370 size_t key_block_length; 1371 unsigned char *key_block; 1372 const EVP_CIPHER *new_sym_enc; 1373 const EVP_MD *new_hash; 1374 int new_mac_pkey_type; 1375 size_t new_mac_secret_size; 1376 #ifndef OPENSSL_NO_COMP 1377 const SSL_COMP *new_compression; 1378 #else 1379 char *new_compression; 1380 #endif 1381 int cert_request; 1382 /* Raw values of the cipher list from a client */ 1383 unsigned char *ciphers_raw; 1384 size_t ciphers_rawlen; 1385 /* Temporary storage for premaster secret */ 1386 unsigned char *pms; 1387 size_t pmslen; 1388 #ifndef OPENSSL_NO_PSK 1389 /* Temporary storage for PSK key */ 1390 unsigned char *psk; 1391 size_t psklen; 1392 #endif 1393 /* Signature algorithm we actually use */ 1394 const struct sigalg_lookup_st *sigalg; 1395 /* Pointer to certificate we use */ 1396 CERT_PKEY *cert; 1397 /* 1398 * signature algorithms peer reports: e.g. supported signature 1399 * algorithms extension for server or as part of a certificate 1400 * request for client. 1401 * Keep track of the algorithms for TLS and X.509 usage separately. 1402 */ 1403 uint16_t *peer_sigalgs; 1404 uint16_t *peer_cert_sigalgs; 1405 /* Size of above arrays */ 1406 size_t peer_sigalgslen; 1407 size_t peer_cert_sigalgslen; 1408 /* Sigalg peer actually uses */ 1409 const struct sigalg_lookup_st *peer_sigalg; 1410 /* 1411 * Set if corresponding CERT_PKEY can be used with current 1412 * SSL session: e.g. appropriate curve, signature algorithms etc. 1413 * If zero it can't be used at all. 1414 */ 1415 uint32_t *valid_flags; 1416 /* 1417 * For servers the following masks are for the key and auth algorithms 1418 * that are supported by the certs below. For clients they are masks of 1419 * *disabled* algorithms based on the current session. 1420 */ 1421 uint32_t mask_k; 1422 uint32_t mask_a; 1423 /* 1424 * The following are used by the client to see if a cipher is allowed or 1425 * not. It contains the minimum and maximum version the client's using 1426 * based on what it knows so far. 1427 */ 1428 int min_ver; 1429 int max_ver; 1430 } tmp; 1431 1432 /* Connection binding to prevent renegotiation attacks */ 1433 unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; 1434 size_t previous_client_finished_len; 1435 unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; 1436 size_t previous_server_finished_len; 1437 int send_connection_binding; 1438 1439 #ifndef OPENSSL_NO_NEXTPROTONEG 1440 /* 1441 * Set if we saw the Next Protocol Negotiation extension from our peer. 1442 */ 1443 int npn_seen; 1444 #endif 1445 1446 /* 1447 * ALPN information (we are in the process of transitioning from NPN to 1448 * ALPN.) 1449 */ 1450 1451 /* 1452 * In a server these point to the selected ALPN protocol after the 1453 * ClientHello has been processed. In a client these contain the protocol 1454 * that the server selected once the ServerHello has been processed. 1455 */ 1456 unsigned char *alpn_selected; 1457 size_t alpn_selected_len; 1458 /* used by the server to know what options were proposed */ 1459 unsigned char *alpn_proposed; 1460 size_t alpn_proposed_len; 1461 /* used by the client to know if it actually sent alpn */ 1462 int alpn_sent; 1463 1464 /* 1465 * This is set to true if we believe that this is a version of Safari 1466 * running on OS X 10.6 or newer. We wish to know this because Safari on 1467 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. 1468 */ 1469 char is_probably_safari; 1470 1471 /* 1472 * Track whether we did a key exchange this handshake or not, so 1473 * SSL_get_negotiated_group() knows whether to fall back to the 1474 * value in the SSL_SESSION. 1475 */ 1476 char did_kex; 1477 /* For clients: peer temporary key */ 1478 /* The group_id for the key exchange key */ 1479 uint16_t group_id; 1480 EVP_PKEY *peer_tmp; 1481 /* The cached group_id candidate for the key exchange key */ 1482 uint16_t group_id_candidate; 1483 } s3; 1484 1485 struct dtls1_state_st *d1; /* DTLSv1 variables */ 1486 /* callback that allows applications to peek at protocol messages */ 1487 void (*msg_callback)(int write_p, int version, int content_type, 1488 const void *buf, size_t len, SSL *ssl, void *arg); 1489 void *msg_callback_arg; 1490 int hit; /* reusing a previous session */ 1491 X509_VERIFY_PARAM *param; 1492 /* Per connection DANE state */ 1493 SSL_DANE dane; 1494 /* crypto */ 1495 STACK_OF(SSL_CIPHER) *peer_ciphers; 1496 STACK_OF(SSL_CIPHER) *cipher_list; 1497 STACK_OF(SSL_CIPHER) *cipher_list_by_id; 1498 /* TLSv1.3 specific ciphersuites */ 1499 STACK_OF(SSL_CIPHER) *tls13_ciphersuites; 1500 /* 1501 * These are the ones being used, the ones in SSL_SESSION are the ones to 1502 * be 'copied' into these ones 1503 */ 1504 uint32_t mac_flags; 1505 /* 1506 * The TLS1.3 secrets. 1507 */ 1508 unsigned char early_secret[EVP_MAX_MD_SIZE]; 1509 unsigned char handshake_secret[EVP_MAX_MD_SIZE]; 1510 unsigned char master_secret[EVP_MAX_MD_SIZE]; 1511 unsigned char resumption_master_secret[EVP_MAX_MD_SIZE]; 1512 unsigned char client_finished_secret[EVP_MAX_MD_SIZE]; 1513 unsigned char server_finished_secret[EVP_MAX_MD_SIZE]; 1514 unsigned char server_finished_hash[EVP_MAX_MD_SIZE]; 1515 unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE]; 1516 unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE]; 1517 unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE]; 1518 unsigned char exporter_master_secret[EVP_MAX_MD_SIZE]; 1519 unsigned char early_exporter_master_secret[EVP_MAX_MD_SIZE]; 1520 1521 /* session info */ 1522 /* client cert? */ 1523 /* This is used to hold the server certificate used */ 1524 struct cert_st /* CERT */ *cert; 1525 1526 /* 1527 * The hash of all messages prior to the CertificateVerify, and the length 1528 * of that hash. 1529 */ 1530 unsigned char cert_verify_hash[EVP_MAX_MD_SIZE]; 1531 size_t cert_verify_hash_len; 1532 1533 /* Flag to indicate whether we should send a HelloRetryRequest or not */ 1534 enum { SSL_HRR_NONE = 0, 1535 SSL_HRR_PENDING, 1536 SSL_HRR_COMPLETE } hello_retry_request; 1537 1538 /* 1539 * the session_id_context is used to ensure sessions are only reused in 1540 * the appropriate context 1541 */ 1542 size_t sid_ctx_length; 1543 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; 1544 /* This can also be in the session once a session is established */ 1545 SSL_SESSION *session; 1546 /* TLSv1.3 PSK session */ 1547 SSL_SESSION *psksession; 1548 unsigned char *psksession_id; 1549 size_t psksession_id_len; 1550 /* Default generate session ID callback. */ 1551 GEN_SESSION_CB generate_session_id; 1552 /* 1553 * The temporary TLSv1.3 session id. This isn't really a session id at all 1554 * but is a random value sent in the legacy session id field. 1555 */ 1556 unsigned char tmp_session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; 1557 size_t tmp_session_id_len; 1558 /* Used in SSL3 */ 1559 /* 1560 * 0 don't care about verify failure. 1561 * 1 fail if verify fails 1562 */ 1563 uint32_t verify_mode; 1564 /* fail if callback returns 0 */ 1565 int (*verify_callback)(int ok, X509_STORE_CTX *ctx); 1566 /* optional informational callback */ 1567 void (*info_callback)(const SSL *ssl, int type, int val); 1568 /* error bytes to be written */ 1569 int error; 1570 /* actual code */ 1571 int error_code; 1572 #ifndef OPENSSL_NO_PSK 1573 SSL_psk_client_cb_func psk_client_callback; 1574 SSL_psk_server_cb_func psk_server_callback; 1575 #endif 1576 SSL_psk_find_session_cb_func psk_find_session_cb; 1577 SSL_psk_use_session_cb_func psk_use_session_cb; 1578 1579 /* Verified chain of peer */ 1580 STACK_OF(X509) *verified_chain; 1581 long verify_result; 1582 /* 1583 * What we put in certificate_authorities extension for TLS 1.3 1584 * (ClientHello and CertificateRequest) or just client cert requests for 1585 * earlier versions. If client_ca_names is populated then it is only used 1586 * for client cert requests, and in preference to ca_names. 1587 */ 1588 STACK_OF(X509_NAME) *ca_names; 1589 STACK_OF(X509_NAME) *client_ca_names; 1590 /* protocol behaviour */ 1591 uint64_t options; 1592 /* API behaviour */ 1593 uint32_t mode; 1594 int min_proto_version; 1595 int max_proto_version; 1596 size_t max_cert_list; 1597 int first_packet; 1598 /* 1599 * What was passed in ClientHello.legacy_version. Used for RSA pre-master 1600 * secret and SSLv3/TLS (<=1.2) rollback check 1601 */ 1602 int client_version; 1603 /* 1604 * If we're using more than one pipeline how should we divide the data 1605 * up between the pipes? 1606 */ 1607 size_t split_send_fragment; 1608 /* 1609 * Maximum amount of data to send in one fragment. actual record size can 1610 * be more than this due to padding and MAC overheads. 1611 */ 1612 size_t max_send_fragment; 1613 /* Up to how many pipelines should we use? If 0 then 1 is assumed */ 1614 size_t max_pipelines; 1615 1616 struct { 1617 /* Built-in extension flags */ 1618 uint8_t extflags[TLSEXT_IDX_num_builtins]; 1619 /* TLS extension debug callback */ 1620 void (*debug_cb)(SSL *s, int client_server, int type, 1621 const unsigned char *data, int len, void *arg); 1622 void *debug_arg; 1623 char *hostname; 1624 /* certificate status request info */ 1625 /* Status type or -1 if no status type */ 1626 int status_type; 1627 /* Raw extension data, if seen */ 1628 unsigned char *scts; 1629 /* Length of raw extension data, if seen */ 1630 uint16_t scts_len; 1631 /* Expect OCSP CertificateStatus message */ 1632 int status_expected; 1633 1634 struct { 1635 /* OCSP status request only */ 1636 STACK_OF(OCSP_RESPID) *ids; 1637 X509_EXTENSIONS *exts; 1638 /* OCSP response received or to be sent */ 1639 unsigned char *resp; 1640 size_t resp_len; 1641 } ocsp; 1642 1643 /* RFC4507 session ticket expected to be received or sent */ 1644 int ticket_expected; 1645 /* TLS 1.3 tickets requested by the application. */ 1646 int extra_tickets_expected; 1647 1648 /* our list */ 1649 size_t ecpointformats_len; 1650 unsigned char *ecpointformats; 1651 /* peer's list */ 1652 size_t peer_ecpointformats_len; 1653 unsigned char *peer_ecpointformats; 1654 1655 /* our list */ 1656 size_t supportedgroups_len; 1657 uint16_t *supportedgroups; 1658 /* peer's list */ 1659 size_t peer_supportedgroups_len; 1660 uint16_t *peer_supportedgroups; 1661 1662 /* key shares */ 1663 size_t keyshares_len; 1664 uint16_t *keyshares; 1665 /* supported groups tuples */ 1666 size_t tuples_len; 1667 size_t *tuples; 1668 1669 /* TLS Session Ticket extension override */ 1670 TLS_SESSION_TICKET_EXT *session_ticket; 1671 /* TLS Session Ticket extension callback */ 1672 tls_session_ticket_ext_cb_fn session_ticket_cb; 1673 void *session_ticket_cb_arg; 1674 /* TLS pre-shared secret session resumption */ 1675 tls_session_secret_cb_fn session_secret_cb; 1676 void *session_secret_cb_arg; 1677 /* 1678 * For a client, this contains the list of supported protocols in wire 1679 * format. 1680 */ 1681 unsigned char *alpn; 1682 size_t alpn_len; 1683 /* 1684 * Next protocol negotiation. For the client, this is the protocol that 1685 * we sent in NextProtocol and is set when handling ServerHello 1686 * extensions. For a server, this is the client's selected_protocol from 1687 * NextProtocol and is set when handling the NextProtocol message, before 1688 * the Finished message. 1689 */ 1690 unsigned char *npn; 1691 size_t npn_len; 1692 1693 /* The available PSK key exchange modes */ 1694 int psk_kex_mode; 1695 1696 /* Set to one if we have negotiated ETM */ 1697 int use_etm; 1698 1699 /* Are we expecting to receive early data? */ 1700 int early_data; 1701 /* Is the session suitable for early data? */ 1702 int early_data_ok; 1703 1704 /* May be sent by a server in HRR. Must be echoed back in ClientHello */ 1705 unsigned char *tls13_cookie; 1706 size_t tls13_cookie_len; 1707 /* Have we received a cookie from the client? */ 1708 int cookieok; 1709 1710 /* 1711 * Maximum Fragment Length as per RFC 4366. 1712 * If this member contains one of the allowed values (1-4) 1713 * then we should include Maximum Fragment Length Negotiation 1714 * extension in Client Hello. 1715 * Please note that value of this member does not have direct 1716 * effect. The actual (binding) value is stored in SSL_SESSION, 1717 * as this extension is optional on server side. 1718 */ 1719 uint8_t max_fragment_len_mode; 1720 1721 /* 1722 * On the client side the number of ticket identities we sent in the 1723 * ClientHello. On the server side the identity of the ticket we 1724 * selected. 1725 */ 1726 int tick_identity; 1727 1728 /* This is the list of algorithms the peer supports that we also support */ 1729 int compress_certificate_from_peer[TLSEXT_comp_cert_limit]; 1730 /* indicate that we sent the extension, so we'll accept it */ 1731 int compress_certificate_sent; 1732 1733 uint8_t client_cert_type; 1734 uint8_t client_cert_type_ctos; 1735 uint8_t server_cert_type; 1736 uint8_t server_cert_type_ctos; 1737 } ext; 1738 1739 /* 1740 * Parsed form of the ClientHello, kept around across client_hello_cb 1741 * calls. 1742 */ 1743 CLIENTHELLO_MSG *clienthello; 1744 1745 /*- 1746 * no further mod of servername 1747 * 0 : call the servername extension callback. 1748 * 1 : prepare 2, allow last ack just after in server callback. 1749 * 2 : don't call servername callback, no ack in server hello 1750 */ 1751 int servername_done; 1752 #ifndef OPENSSL_NO_CT 1753 /* 1754 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient. 1755 * If they are not, the connection should be aborted. 1756 */ 1757 ssl_ct_validation_cb ct_validation_callback; 1758 /* User-supplied argument that is passed to the ct_validation_callback */ 1759 void *ct_validation_callback_arg; 1760 /* 1761 * Consolidated stack of SCTs from all sources. 1762 * Lazily populated by CT_get_peer_scts(SSL*) 1763 */ 1764 STACK_OF(SCT) *scts; 1765 /* Have we attempted to find/parse SCTs yet? */ 1766 int scts_parsed; 1767 #endif 1768 SSL_CTX *session_ctx; /* initial ctx, used to store sessions */ 1769 #ifndef OPENSSL_NO_SRTP 1770 /* What we'll do */ 1771 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; 1772 /* What's been chosen */ 1773 SRTP_PROTECTION_PROFILE *srtp_profile; 1774 #endif 1775 /*- 1776 * 1 if we are renegotiating. 1777 * 2 if we are a server and are inside a handshake 1778 * (i.e. not just sending a HelloRequest) 1779 */ 1780 int renegotiate; 1781 /* If sending a KeyUpdate is pending */ 1782 int key_update; 1783 /* Post-handshake authentication state */ 1784 SSL_PHA_STATE post_handshake_auth; 1785 int pha_enabled; 1786 uint8_t *pha_context; 1787 size_t pha_context_len; 1788 int certreqs_sent; 1789 EVP_MD_CTX *pha_dgst; /* this is just the digest through ClientFinished */ 1790 1791 #ifndef OPENSSL_NO_SRP 1792 /* ctx for SRP authentication */ 1793 SRP_CTX srp_ctx; 1794 #endif 1795 /* 1796 * Callback for disabling session caching and ticket support on a session 1797 * basis, depending on the chosen cipher. 1798 */ 1799 int (*not_resumable_session_cb)(SSL *ssl, int is_forward_secure); 1800 1801 /* Record layer data */ 1802 RECORD_LAYER rlayer; 1803 1804 /* Default password callback. */ 1805 pem_password_cb *default_passwd_callback; 1806 /* Default password callback user data. */ 1807 void *default_passwd_callback_userdata; 1808 /* Async Job info */ 1809 ASYNC_JOB *job; 1810 ASYNC_WAIT_CTX *waitctx; 1811 size_t asyncrw; 1812 1813 /* 1814 * The maximum number of bytes advertised in session tickets that can be 1815 * sent as early data. 1816 */ 1817 uint32_t max_early_data; 1818 /* 1819 * The maximum number of bytes of early data that a server will tolerate 1820 * (which should be at least as much as max_early_data). 1821 */ 1822 uint32_t recv_max_early_data; 1823 1824 /* 1825 * The number of bytes of early data received so far. If we accepted early 1826 * data then this is a count of the plaintext bytes. If we rejected it then 1827 * this is a count of the ciphertext bytes. 1828 */ 1829 uint32_t early_data_count; 1830 1831 /* The number of TLS1.3 tickets to automatically send */ 1832 size_t num_tickets; 1833 /* The number of TLS1.3 tickets actually sent so far */ 1834 size_t sent_tickets; 1835 /* The next nonce value to use when we send a ticket on this connection */ 1836 uint64_t next_ticket_nonce; 1837 1838 /* Callback to determine if early_data is acceptable or not */ 1839 SSL_allow_early_data_cb_fn allow_early_data_cb; 1840 void *allow_early_data_cb_data; 1841 1842 /* Callback for SSL async handling */ 1843 SSL_async_callback_fn async_cb; 1844 void *async_cb_arg; 1845 1846 /* 1847 * Signature algorithms shared by client and server: cached because these 1848 * are used most often. 1849 */ 1850 const struct sigalg_lookup_st **shared_sigalgs; 1851 size_t shared_sigalgslen; 1852 1853 #ifndef OPENSSL_NO_COMP_ALG 1854 /* certificate compression preferences */ 1855 int cert_comp_prefs[TLSEXT_comp_cert_limit]; 1856 #endif 1857 1858 /* Certificate Type stuff - for RPK vs X.509 */ 1859 unsigned char *client_cert_type; 1860 size_t client_cert_type_len; 1861 unsigned char *server_cert_type; 1862 size_t server_cert_type_len; 1863 }; 1864 1865 /* 1866 * Structure containing table entry of values associated with the signature 1867 * algorithms (signature scheme) extension 1868 */ 1869 typedef struct sigalg_lookup_st { 1870 /* TLS 1.3 signature scheme name */ 1871 const char *name; 1872 /* TLS 1.2 signature scheme name */ 1873 const char *name12; 1874 /* Raw value used in extension */ 1875 uint16_t sigalg; 1876 /* NID of hash algorithm or NID_undef if no hash */ 1877 int hash; 1878 /* Index of hash algorithm or -1 if no hash algorithm */ 1879 int hash_idx; 1880 /* NID of signature algorithm */ 1881 int sig; 1882 /* Index of signature algorithm */ 1883 int sig_idx; 1884 /* Combined hash and signature NID, if any */ 1885 int sigandhash; 1886 /* Required public key curve (ECDSA only) */ 1887 int curve; 1888 /* Whether this signature algorithm is actually available for use */ 1889 int available; 1890 /* Whether this signature algorithm is by default advertised */ 1891 int advertise; 1892 /* Supported protocol ranges */ 1893 int mintls; 1894 int maxtls; 1895 int mindtls; 1896 int maxdtls; 1897 } SIGALG_LOOKUP; 1898 1899 /* DTLS structures */ 1900 1901 #ifndef OPENSSL_NO_SCTP 1902 #define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP" 1903 #endif 1904 1905 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */ 1906 #define DTLS1_MAX_MTU_OVERHEAD 48 1907 1908 struct dtls1_retransmit_state { 1909 const OSSL_RECORD_METHOD *wrlmethod; 1910 OSSL_RECORD_LAYER *wrl; 1911 }; 1912 1913 struct hm_header_st { 1914 unsigned char type; 1915 size_t msg_len; 1916 unsigned short seq; 1917 size_t frag_off; 1918 size_t frag_len; 1919 unsigned int is_ccs; 1920 struct dtls1_retransmit_state saved_retransmit_state; 1921 }; 1922 1923 typedef struct hm_fragment_st { 1924 struct hm_header_st msg_header; 1925 unsigned char *fragment; 1926 unsigned char *reassembly; 1927 } hm_fragment; 1928 1929 typedef struct pqueue_st pqueue; 1930 typedef struct pitem_st pitem; 1931 1932 struct pitem_st { 1933 unsigned char priority[8]; /* 64-bit value in big-endian encoding */ 1934 void *data; 1935 pitem *next; 1936 }; 1937 1938 typedef struct pitem_st *piterator; 1939 1940 pitem *pitem_new(unsigned char *prio64be, void *data); 1941 void pitem_free(pitem *item); 1942 pqueue *pqueue_new(void); 1943 void pqueue_free(pqueue *pq); 1944 pitem *pqueue_insert(pqueue *pq, pitem *item); 1945 pitem *pqueue_peek(pqueue *pq); 1946 pitem *pqueue_pop(pqueue *pq); 1947 pitem *pqueue_find(pqueue *pq, unsigned char *prio64be); 1948 pitem *pqueue_iterator(pqueue *pq); 1949 pitem *pqueue_next(piterator *iter); 1950 size_t pqueue_size(pqueue *pq); 1951 1952 typedef struct dtls1_state_st { 1953 unsigned char cookie[DTLS1_COOKIE_LENGTH]; 1954 size_t cookie_len; 1955 unsigned int cookie_verified; 1956 /* handshake message numbers */ 1957 unsigned short handshake_write_seq; 1958 unsigned short next_handshake_write_seq; 1959 unsigned short handshake_read_seq; 1960 /* Buffered handshake messages */ 1961 pqueue *buffered_messages; 1962 /* Buffered (sent) handshake records */ 1963 pqueue *sent_messages; 1964 size_t link_mtu; /* max on-the-wire DTLS packet size */ 1965 size_t mtu; /* max DTLS packet size */ 1966 struct hm_header_st w_msg_hdr; 1967 struct hm_header_st r_msg_hdr; 1968 /* Number of alerts received so far */ 1969 unsigned int timeout_num_alerts; 1970 /* 1971 * Indicates when the last handshake msg sent will timeout 1972 */ 1973 OSSL_TIME next_timeout; 1974 /* Timeout duration */ 1975 unsigned int timeout_duration_us; 1976 1977 unsigned int retransmitting; 1978 #ifndef OPENSSL_NO_SCTP 1979 int shutdown_received; 1980 #endif 1981 1982 DTLS_timer_cb timer_cb; 1983 1984 } DTLS1_STATE; 1985 1986 /* 1987 * From ECC-TLS draft, used in encoding the curve type in ECParameters 1988 */ 1989 #define EXPLICIT_PRIME_CURVE_TYPE 1 1990 #define EXPLICIT_CHAR2_CURVE_TYPE 2 1991 #define NAMED_CURVE_TYPE 3 1992 1993 #ifndef OPENSSL_NO_COMP_ALG 1994 struct ossl_comp_cert_st { 1995 unsigned char *data; 1996 size_t len; 1997 size_t orig_len; 1998 CRYPTO_REF_COUNT references; 1999 int alg; 2000 }; 2001 typedef struct ossl_comp_cert_st OSSL_COMP_CERT; 2002 2003 void OSSL_COMP_CERT_free(OSSL_COMP_CERT *c); 2004 int OSSL_COMP_CERT_up_ref(OSSL_COMP_CERT *c); 2005 #endif 2006 2007 struct cert_pkey_st { 2008 X509 *x509; 2009 EVP_PKEY *privatekey; 2010 /* Chain for this certificate */ 2011 STACK_OF(X509) *chain; 2012 /*- 2013 * serverinfo data for this certificate. The data is in TLS Extension 2014 * wire format, specifically it's a series of records like: 2015 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension) 2016 * uint16_t length; 2017 * uint8_t data[length]; 2018 */ 2019 unsigned char *serverinfo; 2020 size_t serverinfo_length; 2021 #ifndef OPENSSL_NO_COMP_ALG 2022 /* Compressed certificate data - index 0 is unused */ 2023 OSSL_COMP_CERT *comp_cert[TLSEXT_comp_cert_limit]; 2024 int cert_comp_used; 2025 #endif 2026 }; 2027 /* Retrieve Suite B flags */ 2028 #define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS) 2029 /* Uses to check strict mode: suite B modes are always strict */ 2030 #define SSL_CERT_FLAGS_CHECK_TLS_STRICT \ 2031 (SSL_CERT_FLAG_SUITEB_128_LOS | SSL_CERT_FLAG_TLS_STRICT) 2032 2033 typedef enum { 2034 ENDPOINT_CLIENT = 0, 2035 ENDPOINT_SERVER, 2036 ENDPOINT_BOTH 2037 } ENDPOINT; 2038 2039 typedef struct { 2040 unsigned short ext_type; 2041 ENDPOINT role; 2042 /* The context which this extension applies to */ 2043 unsigned int context; 2044 /* 2045 * Per-connection flags relating to this extension type: not used if 2046 * part of an SSL_CTX structure. 2047 */ 2048 uint32_t ext_flags; 2049 SSL_custom_ext_add_cb_ex add_cb; 2050 SSL_custom_ext_free_cb_ex free_cb; 2051 void *add_arg; 2052 SSL_custom_ext_parse_cb_ex parse_cb; 2053 void *parse_arg; 2054 } custom_ext_method; 2055 2056 /* ext_flags values */ 2057 2058 /* 2059 * Indicates an extension has been received. Used to check for unsolicited or 2060 * duplicate extensions. 2061 */ 2062 #define SSL_EXT_FLAG_RECEIVED 0x1 2063 /* 2064 * Indicates an extension has been sent: used to enable sending of 2065 * corresponding ServerHello extension. 2066 */ 2067 #define SSL_EXT_FLAG_SENT 0x2 2068 /* 2069 * Indicates an extension that was set on SSL object and needs to be 2070 * preserved when switching SSL contexts. 2071 */ 2072 #define SSL_EXT_FLAG_CONN 0x4 2073 2074 typedef struct { 2075 custom_ext_method *meths; 2076 size_t meths_count; 2077 } custom_ext_methods; 2078 2079 typedef struct cert_st { 2080 /* Current active set */ 2081 /* 2082 * ALWAYS points to an element of the pkeys array 2083 * Probably it would make more sense to store 2084 * an index, not a pointer. 2085 */ 2086 CERT_PKEY *key; 2087 2088 EVP_PKEY *dh_tmp; 2089 DH *(*dh_tmp_cb)(SSL *ssl, int is_export, int keysize); 2090 int dh_tmp_auto; 2091 /* Flags related to certificates */ 2092 uint32_t cert_flags; 2093 CERT_PKEY *pkeys; 2094 size_t ssl_pkey_num; 2095 /* Custom certificate types sent in certificate request message. */ 2096 uint8_t *ctype; 2097 size_t ctype_len; 2098 /* 2099 * supported signature algorithms. When set on a client this is sent in 2100 * the client hello as the supported signature algorithms extension. For 2101 * servers it represents the signature algorithms we are willing to use. 2102 */ 2103 uint16_t *conf_sigalgs; 2104 /* Size of above array */ 2105 size_t conf_sigalgslen; 2106 /* 2107 * Client authentication signature algorithms, if not set then uses 2108 * conf_sigalgs. On servers these will be the signature algorithms sent 2109 * to the client in a certificate request for TLS 1.2. On a client this 2110 * represents the signature algorithms we are willing to use for client 2111 * authentication. 2112 */ 2113 uint16_t *client_sigalgs; 2114 /* Size of above array */ 2115 size_t client_sigalgslen; 2116 /* 2117 * Certificate setup callback: if set is called whenever a certificate 2118 * may be required (client or server). the callback can then examine any 2119 * appropriate parameters and setup any certificates required. This 2120 * allows advanced applications to select certificates on the fly: for 2121 * example based on supported signature algorithms or curves. 2122 */ 2123 int (*cert_cb)(SSL *ssl, void *arg); 2124 void *cert_cb_arg; 2125 /* 2126 * Optional X509_STORE for chain building or certificate validation If 2127 * NULL the parent SSL_CTX store is used instead. 2128 */ 2129 X509_STORE *chain_store; 2130 X509_STORE *verify_store; 2131 /* Custom extensions */ 2132 custom_ext_methods custext; 2133 /* Security callback */ 2134 int (*sec_cb)(const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid, 2135 void *other, void *ex); 2136 /* Security level */ 2137 int sec_level; 2138 void *sec_ex; 2139 #ifndef OPENSSL_NO_PSK 2140 /* If not NULL psk identity hint to use for servers */ 2141 char *psk_identity_hint; 2142 #endif 2143 CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */ 2144 } CERT; 2145 2146 /* 2147 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit 2148 * of a mess of functions, but hell, think of it as an opaque structure :-) 2149 */ 2150 typedef struct ssl3_enc_method { 2151 int (*setup_key_block)(SSL_CONNECTION *); 2152 int (*generate_master_secret)(SSL_CONNECTION *, unsigned char *, 2153 unsigned char *, size_t, size_t *); 2154 int (*change_cipher_state)(SSL_CONNECTION *, int); 2155 size_t (*final_finish_mac)(SSL_CONNECTION *, const char *, size_t, 2156 unsigned char *); 2157 const char *client_finished_label; 2158 size_t client_finished_label_len; 2159 const char *server_finished_label; 2160 size_t server_finished_label_len; 2161 int (*alert_value)(int); 2162 int (*export_keying_material)(SSL_CONNECTION *, unsigned char *, size_t, 2163 const char *, size_t, 2164 const unsigned char *, size_t, 2165 int use_context); 2166 /* Various flags indicating protocol version requirements */ 2167 uint32_t enc_flags; 2168 /* Set the handshake header */ 2169 int (*set_handshake_header)(SSL_CONNECTION *s, WPACKET *pkt, int type); 2170 /* Close construction of the handshake message */ 2171 int (*close_construct_packet)(SSL_CONNECTION *s, WPACKET *pkt, int htype); 2172 /* Write out handshake message */ 2173 int (*do_write)(SSL_CONNECTION *s); 2174 } SSL3_ENC_METHOD; 2175 2176 #define ssl_set_handshake_header(s, pkt, htype) \ 2177 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->set_handshake_header((s), (pkt), (htype)) 2178 #define ssl_close_construct_packet(s, pkt, htype) \ 2179 SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->close_construct_packet((s), (pkt), (htype)) 2180 #define ssl_do_write(s) SSL_CONNECTION_GET_SSL(s)->method->ssl3_enc->do_write(s) 2181 2182 /* Values for enc_flags */ 2183 2184 /* Uses signature algorithms extension */ 2185 #define SSL_ENC_FLAG_SIGALGS 0x2 2186 /* Uses SHA256 default PRF */ 2187 #define SSL_ENC_FLAG_SHA256_PRF 0x4 2188 /* Is DTLS */ 2189 #define SSL_ENC_FLAG_DTLS 0x8 2190 /* 2191 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may 2192 * apply to others in future. 2193 */ 2194 #define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10 2195 2196 typedef enum downgrade_en { 2197 DOWNGRADE_NONE, 2198 DOWNGRADE_TO_1_2, 2199 DOWNGRADE_TO_1_1 2200 } DOWNGRADE; 2201 2202 /* 2203 * Dummy status type for the status_type extension. Indicates no status type 2204 * set 2205 */ 2206 #define TLSEXT_STATUSTYPE_nothing -1 2207 2208 /* Sigalgs values */ 2209 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403 2210 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503 2211 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603 2212 #define TLSEXT_SIGALG_ecdsa_sha224 0x0303 2213 #define TLSEXT_SIGALG_ecdsa_sha1 0x0203 2214 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804 2215 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805 2216 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806 2217 #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809 2218 #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a 2219 #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b 2220 #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401 2221 #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501 2222 #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601 2223 #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301 2224 #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201 2225 #define TLSEXT_SIGALG_dsa_sha256 0x0402 2226 #define TLSEXT_SIGALG_dsa_sha384 0x0502 2227 #define TLSEXT_SIGALG_dsa_sha512 0x0602 2228 #define TLSEXT_SIGALG_dsa_sha224 0x0302 2229 #define TLSEXT_SIGALG_dsa_sha1 0x0202 2230 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840 2231 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841 2232 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee 2233 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef 2234 #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded 2235 2236 #define TLSEXT_SIGALG_ed25519 0x0807 2237 #define TLSEXT_SIGALG_ed448 0x0808 2238 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256 0x081a 2239 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384 0x081b 2240 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512 0x081c 2241 #define TLSEXT_SIGALG_mldsa44 0x0904 2242 #define TLSEXT_SIGALG_mldsa65 0x0905 2243 #define TLSEXT_SIGALG_mldsa87 0x0906 2244 2245 /* Sigalgs names */ 2246 #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256_name "ecdsa_secp256r1_sha256" 2247 #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384_name "ecdsa_secp384r1_sha384" 2248 #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512_name "ecdsa_secp521r1_sha512" 2249 #define TLSEXT_SIGALG_ecdsa_sha224_name "ecdsa_sha224" 2250 #define TLSEXT_SIGALG_ecdsa_sha1_name "ecdsa_sha1" 2251 #define TLSEXT_SIGALG_rsa_pss_rsae_sha256_name "rsa_pss_rsae_sha256" 2252 #define TLSEXT_SIGALG_rsa_pss_rsae_sha384_name "rsa_pss_rsae_sha384" 2253 #define TLSEXT_SIGALG_rsa_pss_rsae_sha512_name "rsa_pss_rsae_sha512" 2254 #define TLSEXT_SIGALG_rsa_pss_pss_sha256_name "rsa_pss_pss_sha256" 2255 #define TLSEXT_SIGALG_rsa_pss_pss_sha384_name "rsa_pss_pss_sha384" 2256 #define TLSEXT_SIGALG_rsa_pss_pss_sha512_name "rsa_pss_pss_sha512" 2257 #define TLSEXT_SIGALG_rsa_pkcs1_sha256_name "rsa_pkcs1_sha256" 2258 #define TLSEXT_SIGALG_rsa_pkcs1_sha384_name "rsa_pkcs1_sha384" 2259 #define TLSEXT_SIGALG_rsa_pkcs1_sha512_name "rsa_pkcs1_sha512" 2260 #define TLSEXT_SIGALG_rsa_pkcs1_sha224_name "rsa_pkcs1_sha224" 2261 #define TLSEXT_SIGALG_rsa_pkcs1_sha1_name "rsa_pkcs1_sha1" 2262 #define TLSEXT_SIGALG_dsa_sha256_name "dsa_sha256" 2263 #define TLSEXT_SIGALG_dsa_sha384_name "dsa_sha384" 2264 #define TLSEXT_SIGALG_dsa_sha512_name "dsa_sha512" 2265 #define TLSEXT_SIGALG_dsa_sha224_name "dsa_sha224" 2266 #define TLSEXT_SIGALG_dsa_sha1_name "dsa_sha1" 2267 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic_name "gostr34102012_256" 2268 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic_name "gostr34102012_512" 2269 #define TLSEXT_SIGALG_gostr34102012_256_intrinsic_alias "gost2012_256" 2270 #define TLSEXT_SIGALG_gostr34102012_512_intrinsic_alias "gost2012_512" 2271 #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256_name "gost2012_256" 2272 #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512_name "gost2012_512" 2273 #define TLSEXT_SIGALG_gostr34102001_gostr3411_name "gost2001_gost94" 2274 2275 #define TLSEXT_SIGALG_ed25519_name "ed25519" 2276 #define TLSEXT_SIGALG_ed448_name "ed448" 2277 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256_name "ecdsa_brainpoolP256r1tls13_sha256" 2278 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384_name "ecdsa_brainpoolP384r1tls13_sha384" 2279 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512_name "ecdsa_brainpoolP512r1tls13_sha512" 2280 #define TLSEXT_SIGALG_ecdsa_brainpoolP256r1_sha256_alias "ecdsa_brainpoolP256r1_sha256" 2281 #define TLSEXT_SIGALG_ecdsa_brainpoolP384r1_sha384_alias "ecdsa_brainpoolP384r1_sha384" 2282 #define TLSEXT_SIGALG_ecdsa_brainpoolP512r1_sha512_alias "ecdsa_brainpoolP512r1_sha512" 2283 #define TLSEXT_SIGALG_mldsa44_name "mldsa44" 2284 #define TLSEXT_SIGALG_mldsa65_name "mldsa65" 2285 #define TLSEXT_SIGALG_mldsa87_name "mldsa87" 2286 2287 /* Known PSK key exchange modes */ 2288 #define TLSEXT_KEX_MODE_KE 0x00 2289 #define TLSEXT_KEX_MODE_KE_DHE 0x01 2290 2291 /* 2292 * Internal representations of key exchange modes 2293 */ 2294 #define TLSEXT_KEX_MODE_FLAG_NONE 0 2295 #define TLSEXT_KEX_MODE_FLAG_KE 1 2296 #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2 2297 2298 #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS) 2299 2300 /* TLSv1.3 downgrade protection sentinel values */ 2301 extern const unsigned char tls11downgrade[8]; 2302 extern const unsigned char tls12downgrade[8]; 2303 2304 extern const SSL3_ENC_METHOD ssl3_undef_enc_method; 2305 2306 __owur const SSL_METHOD *sslv3_method(void); 2307 __owur const SSL_METHOD *sslv3_server_method(void); 2308 __owur const SSL_METHOD *sslv3_client_method(void); 2309 __owur const SSL_METHOD *tlsv1_method(void); 2310 __owur const SSL_METHOD *tlsv1_server_method(void); 2311 __owur const SSL_METHOD *tlsv1_client_method(void); 2312 __owur const SSL_METHOD *tlsv1_1_method(void); 2313 __owur const SSL_METHOD *tlsv1_1_server_method(void); 2314 __owur const SSL_METHOD *tlsv1_1_client_method(void); 2315 __owur const SSL_METHOD *tlsv1_2_method(void); 2316 __owur const SSL_METHOD *tlsv1_2_server_method(void); 2317 __owur const SSL_METHOD *tlsv1_2_client_method(void); 2318 __owur const SSL_METHOD *tlsv1_3_method(void); 2319 __owur const SSL_METHOD *tlsv1_3_server_method(void); 2320 __owur const SSL_METHOD *tlsv1_3_client_method(void); 2321 __owur const SSL_METHOD *dtlsv1_method(void); 2322 __owur const SSL_METHOD *dtlsv1_server_method(void); 2323 __owur const SSL_METHOD *dtlsv1_client_method(void); 2324 __owur const SSL_METHOD *dtls_bad_ver_client_method(void); 2325 __owur const SSL_METHOD *dtlsv1_2_method(void); 2326 __owur const SSL_METHOD *dtlsv1_2_server_method(void); 2327 __owur const SSL_METHOD *dtlsv1_2_client_method(void); 2328 2329 extern const SSL3_ENC_METHOD TLSv1_enc_data; 2330 extern const SSL3_ENC_METHOD TLSv1_1_enc_data; 2331 extern const SSL3_ENC_METHOD TLSv1_2_enc_data; 2332 extern const SSL3_ENC_METHOD TLSv1_3_enc_data; 2333 extern const SSL3_ENC_METHOD SSLv3_enc_data; 2334 extern const SSL3_ENC_METHOD DTLSv1_enc_data; 2335 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data; 2336 2337 /* 2338 * Flags for SSL methods 2339 */ 2340 #define SSL_METHOD_NO_FIPS (1U << 0) 2341 #define SSL_METHOD_NO_SUITEB (1U << 1) 2342 2343 #define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \ 2344 s_connect, enc_data) \ 2345 const SSL_METHOD *func_name(void) \ 2346 { \ 2347 static const SSL_METHOD func_name##_data = { \ 2348 version, \ 2349 flags, \ 2350 mask, \ 2351 ossl_ssl_connection_new, \ 2352 ossl_ssl_connection_free, \ 2353 ossl_ssl_connection_reset, \ 2354 tls1_new, \ 2355 tls1_clear, \ 2356 tls1_free, \ 2357 s_accept, \ 2358 s_connect, \ 2359 ssl3_read, \ 2360 ssl3_peek, \ 2361 ssl3_write, \ 2362 ssl3_shutdown, \ 2363 ssl3_renegotiate, \ 2364 ssl3_renegotiate_check, \ 2365 ssl3_read_bytes, \ 2366 ssl3_write_bytes, \ 2367 ssl3_dispatch_alert, \ 2368 ssl3_ctrl, \ 2369 ssl3_ctx_ctrl, \ 2370 ssl3_get_cipher_by_char, \ 2371 ssl3_put_cipher_by_char, \ 2372 ssl3_pending, \ 2373 ssl3_num_ciphers, \ 2374 ssl3_get_cipher, \ 2375 tls1_default_timeout, \ 2376 &enc_data, \ 2377 ssl_undefined_void_function, \ 2378 ssl3_callback_ctrl, \ 2379 ssl3_ctx_callback_ctrl, \ 2380 }; \ 2381 return &func_name##_data; \ 2382 } 2383 2384 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \ 2385 const SSL_METHOD *func_name(void) \ 2386 { \ 2387 static const SSL_METHOD func_name##_data = { \ 2388 SSL3_VERSION, \ 2389 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \ 2390 SSL_OP_NO_SSLv3, \ 2391 ossl_ssl_connection_new, \ 2392 ossl_ssl_connection_free, \ 2393 ossl_ssl_connection_reset, \ 2394 ssl3_new, \ 2395 ssl3_clear, \ 2396 ssl3_free, \ 2397 s_accept, \ 2398 s_connect, \ 2399 ssl3_read, \ 2400 ssl3_peek, \ 2401 ssl3_write, \ 2402 ssl3_shutdown, \ 2403 ssl3_renegotiate, \ 2404 ssl3_renegotiate_check, \ 2405 ssl3_read_bytes, \ 2406 ssl3_write_bytes, \ 2407 ssl3_dispatch_alert, \ 2408 ssl3_ctrl, \ 2409 ssl3_ctx_ctrl, \ 2410 ssl3_get_cipher_by_char, \ 2411 ssl3_put_cipher_by_char, \ 2412 ssl3_pending, \ 2413 ssl3_num_ciphers, \ 2414 ssl3_get_cipher, \ 2415 ssl3_default_timeout, \ 2416 &SSLv3_enc_data, \ 2417 ssl_undefined_void_function, \ 2418 ssl3_callback_ctrl, \ 2419 ssl3_ctx_callback_ctrl, \ 2420 }; \ 2421 return &func_name##_data; \ 2422 } 2423 2424 #define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \ 2425 s_connect, enc_data) \ 2426 const SSL_METHOD *func_name(void) \ 2427 { \ 2428 static const SSL_METHOD func_name##_data = { \ 2429 version, \ 2430 flags, \ 2431 mask, \ 2432 ossl_ssl_connection_new, \ 2433 ossl_ssl_connection_free, \ 2434 ossl_ssl_connection_reset, \ 2435 dtls1_new, \ 2436 dtls1_clear, \ 2437 dtls1_free, \ 2438 s_accept, \ 2439 s_connect, \ 2440 ssl3_read, \ 2441 ssl3_peek, \ 2442 ssl3_write, \ 2443 dtls1_shutdown, \ 2444 ssl3_renegotiate, \ 2445 ssl3_renegotiate_check, \ 2446 dtls1_read_bytes, \ 2447 dtls1_write_app_data_bytes, \ 2448 dtls1_dispatch_alert, \ 2449 dtls1_ctrl, \ 2450 ssl3_ctx_ctrl, \ 2451 ssl3_get_cipher_by_char, \ 2452 ssl3_put_cipher_by_char, \ 2453 ssl3_pending, \ 2454 ssl3_num_ciphers, \ 2455 ssl3_get_cipher, \ 2456 dtls1_default_timeout, \ 2457 &enc_data, \ 2458 ssl_undefined_void_function, \ 2459 ssl3_callback_ctrl, \ 2460 ssl3_ctx_callback_ctrl, \ 2461 }; \ 2462 return &func_name##_data; \ 2463 } 2464 2465 struct openssl_ssl_test_functions { 2466 int (*p_ssl_init_wbio_buffer)(SSL_CONNECTION *s); 2467 }; 2468 2469 const char *ssl_protocol_to_string(int version); 2470 2471 static ossl_inline int tls12_rpk_and_privkey(const SSL_CONNECTION *sc, int idx) 2472 { 2473 /* 2474 * This is to check for special cases when using RPK with just 2475 * a private key, and NO CERTIFICATE 2476 */ 2477 return ((sc->server && sc->ext.server_cert_type == TLSEXT_cert_type_rpk) 2478 || (!sc->server && sc->ext.client_cert_type == TLSEXT_cert_type_rpk)) 2479 && sc->cert->pkeys[idx].privatekey != NULL 2480 && sc->cert->pkeys[idx].x509 == NULL; 2481 } 2482 2483 static ossl_inline int ssl_has_cert_type(const SSL_CONNECTION *sc, unsigned char ct) 2484 { 2485 unsigned char *ptr; 2486 size_t len; 2487 2488 if (sc->server) { 2489 ptr = sc->server_cert_type; 2490 len = sc->server_cert_type_len; 2491 } else { 2492 ptr = sc->client_cert_type; 2493 len = sc->client_cert_type_len; 2494 } 2495 2496 if (ptr == NULL) 2497 return 0; 2498 2499 return memchr(ptr, ct, len) != NULL; 2500 } 2501 2502 /* Returns true if certificate and private key for 'idx' are present */ 2503 static ossl_inline int ssl_has_cert(const SSL_CONNECTION *s, int idx) 2504 { 2505 if (idx < 0 || idx >= (int)s->ssl_pkey_num) 2506 return 0; 2507 2508 /* If RPK is enabled for this SSL... only require private key */ 2509 if (ssl_has_cert_type(s, TLSEXT_cert_type_rpk)) 2510 return s->cert->pkeys[idx].privatekey != NULL; 2511 2512 return s->cert->pkeys[idx].x509 != NULL 2513 && s->cert->pkeys[idx].privatekey != NULL; 2514 } 2515 2516 static ossl_inline void tls1_get_peer_groups(SSL_CONNECTION *s, 2517 const uint16_t **pgroups, 2518 size_t *pgroupslen) 2519 { 2520 *pgroups = s->ext.peer_supportedgroups; 2521 *pgroupslen = s->ext.peer_supportedgroups_len; 2522 } 2523 2524 #ifndef OPENSSL_UNIT_TEST 2525 2526 __owur int ossl_ssl_init(SSL *ssl, SSL_CTX *ctx, const SSL_METHOD *method, 2527 int type); 2528 __owur SSL *ossl_ssl_connection_new_int(SSL_CTX *ctx, SSL *user_ssl, 2529 const SSL_METHOD *method); 2530 __owur SSL *ossl_ssl_connection_new(SSL_CTX *ctx); 2531 void ossl_ssl_connection_free(SSL *ssl); 2532 __owur int ossl_ssl_connection_reset(SSL *ssl); 2533 2534 __owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes); 2535 __owur int ssl_write_internal(SSL *s, const void *buf, size_t num, 2536 uint64_t flags, size_t *written); 2537 int ssl_clear_bad_session(SSL_CONNECTION *s); 2538 __owur CERT *ssl_cert_new(size_t ssl_pkey_num); 2539 __owur CERT *ssl_cert_dup(CERT *cert); 2540 void ssl_cert_clear_certs(CERT *c); 2541 void ssl_cert_free(CERT *c); 2542 __owur int ssl_generate_session_id(SSL_CONNECTION *s, SSL_SESSION *ss); 2543 __owur int ssl_get_new_session(SSL_CONNECTION *s, int session); 2544 __owur SSL_SESSION *lookup_sess_in_cache(SSL_CONNECTION *s, 2545 const unsigned char *sess_id, 2546 size_t sess_id_len); 2547 __owur int ssl_get_prev_session(SSL_CONNECTION *s, CLIENTHELLO_MSG *hello); 2548 __owur SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket); 2549 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); 2550 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); 2551 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, 2552 const SSL_CIPHER *const *bp); 2553 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, 2554 STACK_OF(SSL_CIPHER) *tls13_ciphersuites, 2555 STACK_OF(SSL_CIPHER) **cipher_list, 2556 STACK_OF(SSL_CIPHER) **cipher_list_by_id, 2557 const char *rule_str, 2558 CERT *c); 2559 __owur int ssl_cache_cipherlist(SSL_CONNECTION *s, PACKET *cipher_suites, 2560 int sslv2format); 2561 __owur int ossl_bytes_to_cipher_list(SSL_CONNECTION *s, PACKET *cipher_suites, 2562 STACK_OF(SSL_CIPHER) **skp, 2563 STACK_OF(SSL_CIPHER) **scsvs, int sslv2format, 2564 int fatal); 2565 void ssl_update_cache(SSL_CONNECTION *s, int mode); 2566 __owur int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc, 2567 const EVP_CIPHER **enc); 2568 __owur int ssl_cipher_get_evp_md_mac(SSL_CTX *ctx, const SSL_CIPHER *sslc, 2569 const EVP_MD **md, 2570 int *mac_pkey_type, size_t *mac_secret_size); 2571 __owur int ssl_cipher_get_evp(SSL_CTX *ctxc, const SSL_SESSION *s, 2572 const EVP_CIPHER **enc, const EVP_MD **md, 2573 int *mac_pkey_type, size_t *mac_secret_size, 2574 SSL_COMP **comp, int use_etm); 2575 __owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead, 2576 size_t *int_overhead, size_t *blocksize, 2577 size_t *ext_overhead); 2578 __owur int ssl_cert_is_disabled(SSL_CTX *ctx, size_t idx); 2579 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL_CONNECTION *ssl, 2580 const unsigned char *ptr, 2581 int all); 2582 __owur int ssl_cert_set0_chain(SSL_CONNECTION *s, SSL_CTX *ctx, 2583 STACK_OF(X509) *chain); 2584 __owur int ssl_cert_set1_chain(SSL_CONNECTION *s, SSL_CTX *ctx, 2585 STACK_OF(X509) *chain); 2586 __owur int ssl_cert_add0_chain_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x); 2587 __owur int ssl_cert_add1_chain_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x); 2588 __owur int ssl_cert_select_current(CERT *c, X509 *x); 2589 __owur int ssl_cert_set_current(CERT *c, long arg); 2590 void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg); 2591 2592 __owur int ssl_verify_cert_chain(SSL_CONNECTION *s, STACK_OF(X509) *sk); 2593 __owur int ssl_verify_rpk(SSL_CONNECTION *s, EVP_PKEY *rpk); 2594 __owur int ssl_build_cert_chain(SSL_CONNECTION *s, SSL_CTX *ctx, int flags); 2595 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, 2596 int ref); 2597 __owur int ssl_cert_get_cert_store(CERT *c, X509_STORE **pstore, int chain); 2598 2599 __owur int ssl_security(const SSL_CONNECTION *s, int op, int bits, int nid, 2600 void *other); 2601 __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, 2602 void *other); 2603 int ssl_get_security_level_bits(const SSL *s, const SSL_CTX *ctx, int *levelp); 2604 2605 __owur int ssl_cert_lookup_by_nid(int nid, size_t *pidx, SSL_CTX *ctx); 2606 __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk, 2607 size_t *pidx, 2608 SSL_CTX *ctx); 2609 __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx, SSL_CTX *ctx); 2610 2611 int ssl_undefined_function(SSL *s); 2612 __owur int ssl_undefined_void_function(void); 2613 __owur int ssl_get_server_cert_serverinfo(SSL_CONNECTION *s, 2614 const unsigned char **serverinfo, 2615 size_t *serverinfo_length); 2616 void ssl_set_masks(SSL_CONNECTION *s); 2617 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL_CONNECTION *sc); 2618 __owur int ssl_x509err2alert(int type); 2619 void ssl_sort_cipher_list(void); 2620 int ssl_load_ciphers(SSL_CTX *ctx); 2621 __owur int ssl_setup_sigalgs(SSL_CTX *ctx); 2622 int ssl_load_groups(SSL_CTX *ctx); 2623 int ssl_load_sigalgs(SSL_CTX *ctx); 2624 __owur int ssl_fill_hello_random(SSL_CONNECTION *s, int server, 2625 unsigned char *field, size_t len, 2626 DOWNGRADE dgrd); 2627 __owur int ssl_generate_master_secret(SSL_CONNECTION *s, unsigned char *pms, 2628 size_t pmslen, int free_pms); 2629 __owur EVP_PKEY *ssl_generate_pkey(SSL_CONNECTION *s, EVP_PKEY *pm); 2630 __owur int ssl_gensecret(SSL_CONNECTION *s, unsigned char *pms, size_t pmslen); 2631 __owur int ssl_derive(SSL_CONNECTION *s, EVP_PKEY *privkey, EVP_PKEY *pubkey, 2632 int genmaster); 2633 __owur int ssl_decapsulate(SSL_CONNECTION *s, EVP_PKEY *privkey, 2634 const unsigned char *ct, size_t ctlen, 2635 int gensecret); 2636 __owur int ssl_encapsulate(SSL_CONNECTION *s, EVP_PKEY *pubkey, 2637 unsigned char **ctp, size_t *ctlenp, 2638 int gensecret); 2639 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh); 2640 __owur int ssl_set_tmp_ecdh_groups(uint16_t **pext, size_t *pextlen, 2641 uint16_t **ksext, size_t *ksextlen, 2642 size_t **tplext, size_t *tplextlen, 2643 void *key); 2644 __owur unsigned int ssl_get_max_send_fragment(const SSL_CONNECTION *sc); 2645 __owur unsigned int ssl_get_split_send_fragment(const SSL_CONNECTION *sc); 2646 2647 __owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id); 2648 __owur const SSL_CIPHER *ssl3_get_cipher_by_std_name(const char *stdname); 2649 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); 2650 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt, 2651 size_t *len); 2652 int ssl3_init_finished_mac(SSL_CONNECTION *s); 2653 __owur int ssl3_setup_key_block(SSL_CONNECTION *s); 2654 __owur int ssl3_change_cipher_state(SSL_CONNECTION *s, int which); 2655 void ssl3_cleanup_key_block(SSL_CONNECTION *s); 2656 __owur int ssl3_do_write(SSL_CONNECTION *s, uint8_t type); 2657 int ssl3_send_alert(SSL_CONNECTION *s, int level, int desc); 2658 __owur int ssl3_generate_master_secret(SSL_CONNECTION *s, unsigned char *out, 2659 unsigned char *p, size_t len, 2660 size_t *secret_size); 2661 __owur int ssl3_get_req_cert_type(SSL_CONNECTION *s, WPACKET *pkt); 2662 __owur int ssl3_num_ciphers(void); 2663 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u); 2664 int ssl3_renegotiate(SSL *ssl); 2665 int ssl3_renegotiate_check(SSL *ssl, int initok); 2666 void ssl3_digest_master_key_set_params(const SSL_SESSION *session, 2667 OSSL_PARAM params[]); 2668 __owur int ssl3_dispatch_alert(SSL *s); 2669 __owur size_t ssl3_final_finish_mac(SSL_CONNECTION *s, const char *sender, 2670 size_t slen, unsigned char *p); 2671 __owur int ssl3_finish_mac(SSL_CONNECTION *s, const unsigned char *buf, 2672 size_t len); 2673 void ssl3_free_digest_list(SSL_CONNECTION *s); 2674 __owur unsigned long ssl3_output_cert_chain(SSL_CONNECTION *s, WPACKET *pkt, 2675 CERT_PKEY *cpk, int for_comp); 2676 __owur const SSL_CIPHER *ssl3_choose_cipher(SSL_CONNECTION *s, 2677 STACK_OF(SSL_CIPHER) *clnt, 2678 STACK_OF(SSL_CIPHER) *srvr); 2679 __owur int ssl3_digest_cached_records(SSL_CONNECTION *s, int keep); 2680 __owur int ssl3_new(SSL *s); 2681 void ssl3_free(SSL *s); 2682 __owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes); 2683 __owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes); 2684 __owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written); 2685 __owur int ssl3_shutdown(SSL *s); 2686 int ssl3_clear(SSL *s); 2687 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); 2688 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); 2689 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp)(void)); 2690 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp)(void)); 2691 2692 __owur int ssl3_do_change_cipher_spec(SSL_CONNECTION *s); 2693 __owur OSSL_TIME ssl3_default_timeout(void); 2694 2695 __owur int ssl3_set_handshake_header(SSL_CONNECTION *s, WPACKET *pkt, 2696 int htype); 2697 __owur int tls_close_construct_packet(SSL_CONNECTION *s, WPACKET *pkt, int htype); 2698 __owur int tls_setup_handshake(SSL_CONNECTION *s); 2699 __owur int dtls1_set_handshake_header(SSL_CONNECTION *s, WPACKET *pkt, int htype); 2700 __owur int dtls1_close_construct_packet(SSL_CONNECTION *s, WPACKET *pkt, int htype); 2701 __owur int ssl3_handshake_write(SSL_CONNECTION *s); 2702 2703 __owur int ssl_allow_compression(SSL_CONNECTION *s); 2704 2705 __owur int ssl_version_cmp(const SSL_CONNECTION *s, int versiona, int versionb); 2706 __owur int ssl_version_supported(const SSL_CONNECTION *s, int version, 2707 const SSL_METHOD **meth); 2708 2709 __owur int ssl_set_client_hello_version(SSL_CONNECTION *s); 2710 __owur int ssl_check_version_downgrade(SSL_CONNECTION *s); 2711 __owur int ssl_set_version_bound(int method_version, int version, int *bound); 2712 __owur int ssl_choose_server_version(SSL_CONNECTION *s, CLIENTHELLO_MSG *hello, 2713 DOWNGRADE *dgrd); 2714 __owur int ssl_choose_client_version(SSL_CONNECTION *s, int version, 2715 RAW_EXTENSION *extensions); 2716 __owur int ssl_get_min_max_version(const SSL_CONNECTION *s, int *min_version, 2717 int *max_version, int *real_max); 2718 2719 __owur OSSL_TIME tls1_default_timeout(void); 2720 __owur int dtls1_do_write(SSL_CONNECTION *s, uint8_t type); 2721 void dtls1_set_message_header(SSL_CONNECTION *s, 2722 unsigned char mt, 2723 size_t len, 2724 size_t frag_off, size_t frag_len); 2725 2726 int dtls1_write_app_data_bytes(SSL *s, uint8_t type, const void *buf_, 2727 size_t len, size_t *written); 2728 2729 __owur int dtls1_read_failed(SSL_CONNECTION *s, int code); 2730 __owur int dtls1_buffer_message(SSL_CONNECTION *s, int ccs); 2731 __owur int dtls1_retransmit_message(SSL_CONNECTION *s, unsigned short seq, 2732 int *found); 2733 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs); 2734 int dtls1_retransmit_buffered_messages(SSL_CONNECTION *s); 2735 void dtls1_clear_received_buffer(SSL_CONNECTION *s); 2736 void dtls1_clear_sent_buffer(SSL_CONNECTION *s); 2737 void dtls1_get_message_header(const unsigned char *data, 2738 struct hm_header_st *msg_hdr); 2739 __owur OSSL_TIME dtls1_default_timeout(void); 2740 __owur int dtls1_get_timeout(const SSL_CONNECTION *s, OSSL_TIME *timeleft); 2741 __owur int dtls1_check_timeout_num(SSL_CONNECTION *s); 2742 __owur int dtls1_handle_timeout(SSL_CONNECTION *s); 2743 void dtls1_start_timer(SSL_CONNECTION *s); 2744 void dtls1_stop_timer(SSL_CONNECTION *s); 2745 __owur int dtls1_is_timer_expired(SSL_CONNECTION *s); 2746 __owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie, 2747 size_t cookie_len); 2748 __owur size_t dtls1_min_mtu(SSL_CONNECTION *s); 2749 void dtls1_hm_fragment_free(hm_fragment *frag); 2750 __owur int dtls1_query_mtu(SSL_CONNECTION *s); 2751 2752 __owur int tls1_new(SSL *s); 2753 void tls1_free(SSL *s); 2754 int tls1_clear(SSL *s); 2755 2756 __owur int dtls1_new(SSL *s); 2757 void dtls1_free(SSL *s); 2758 int dtls1_clear(SSL *s); 2759 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg); 2760 __owur int dtls1_shutdown(SSL *s); 2761 2762 __owur int dtls1_dispatch_alert(SSL *s); 2763 2764 __owur int ssl_init_wbio_buffer(SSL_CONNECTION *s); 2765 int ssl_free_wbio_buffer(SSL_CONNECTION *s); 2766 2767 __owur int tls1_change_cipher_state(SSL_CONNECTION *s, int which); 2768 __owur int tls1_setup_key_block(SSL_CONNECTION *s); 2769 __owur size_t tls1_final_finish_mac(SSL_CONNECTION *s, const char *str, 2770 size_t slen, unsigned char *p); 2771 __owur int tls1_generate_master_secret(SSL_CONNECTION *s, unsigned char *out, 2772 unsigned char *p, size_t len, 2773 size_t *secret_size); 2774 __owur int tls13_setup_key_block(SSL_CONNECTION *s); 2775 __owur size_t tls13_final_finish_mac(SSL_CONNECTION *s, const char *str, size_t slen, 2776 unsigned char *p); 2777 __owur int tls13_store_handshake_traffic_hash(SSL_CONNECTION *s); 2778 __owur int tls13_store_server_finished_hash(SSL_CONNECTION *s); 2779 __owur int tls13_change_cipher_state(SSL_CONNECTION *s, int which); 2780 __owur int tls13_update_key(SSL_CONNECTION *s, int send); 2781 __owur int tls13_hkdf_expand(SSL_CONNECTION *s, 2782 const EVP_MD *md, 2783 const unsigned char *secret, 2784 const unsigned char *label, size_t labellen, 2785 const unsigned char *data, size_t datalen, 2786 unsigned char *out, size_t outlen, int fatal); 2787 __owur int tls13_hkdf_expand_ex(OSSL_LIB_CTX *libctx, const char *propq, 2788 const EVP_MD *md, 2789 const unsigned char *secret, 2790 const unsigned char *label, size_t labellen, 2791 const unsigned char *data, size_t datalen, 2792 unsigned char *out, size_t outlen, 2793 int raise_error); 2794 __owur int tls13_derive_key(SSL_CONNECTION *s, const EVP_MD *md, 2795 const unsigned char *secret, unsigned char *key, 2796 size_t keylen); 2797 __owur int tls13_derive_iv(SSL_CONNECTION *s, const EVP_MD *md, 2798 const unsigned char *secret, unsigned char *iv, 2799 size_t ivlen); 2800 __owur int tls13_derive_finishedkey(SSL_CONNECTION *s, const EVP_MD *md, 2801 const unsigned char *secret, 2802 unsigned char *fin, size_t finlen); 2803 int tls13_generate_secret(SSL_CONNECTION *s, const EVP_MD *md, 2804 const unsigned char *prevsecret, 2805 const unsigned char *insecret, 2806 size_t insecretlen, 2807 unsigned char *outsecret); 2808 __owur int tls13_generate_handshake_secret(SSL_CONNECTION *s, 2809 const unsigned char *insecret, 2810 size_t insecretlen); 2811 __owur int tls13_generate_master_secret(SSL_CONNECTION *s, unsigned char *out, 2812 unsigned char *prev, size_t prevlen, 2813 size_t *secret_size); 2814 __owur int tls1_export_keying_material(SSL_CONNECTION *s, 2815 unsigned char *out, size_t olen, 2816 const char *label, size_t llen, 2817 const unsigned char *p, size_t plen, 2818 int use_context); 2819 __owur int tls13_export_keying_material(SSL_CONNECTION *s, 2820 unsigned char *out, size_t olen, 2821 const char *label, size_t llen, 2822 const unsigned char *context, 2823 size_t contextlen, int use_context); 2824 __owur int tls13_export_keying_material_early(SSL_CONNECTION *s, 2825 unsigned char *out, size_t olen, 2826 const char *label, size_t llen, 2827 const unsigned char *context, 2828 size_t contextlen); 2829 __owur int tls1_alert_code(int code); 2830 __owur int tls13_alert_code(int code); 2831 __owur int ssl3_alert_code(int code); 2832 2833 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CONNECTION *s); 2834 2835 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); 2836 2837 __owur const TLS_GROUP_INFO *tls1_group_id_lookup(SSL_CTX *ctx, uint16_t curve_id); 2838 __owur const char *tls1_group_id2name(SSL_CTX *ctx, uint16_t group_id); 2839 __owur int tls1_group_id2nid(uint16_t group_id, int include_unknown); 2840 __owur uint16_t tls1_nid2group_id(int nid); 2841 __owur int tls1_check_group_id(SSL_CONNECTION *s, uint16_t group_id, 2842 int check_own_curves); 2843 __owur int tls1_get0_implemented_groups(int min_proto_version, 2844 int max_proto_version, 2845 TLS_GROUP_INFO *grps, 2846 size_t num, long all, 2847 STACK_OF(OPENSSL_CSTRING) *out); 2848 __owur uint16_t tls1_shared_group(SSL_CONNECTION *s, int nmatch); 2849 __owur int tls1_set_groups(uint16_t **grpext, size_t *grpextlen, 2850 uint16_t **ksext, size_t *ksextlen, 2851 size_t **tplext, size_t *tplextlen, 2852 int *curves, size_t ncurves); 2853 __owur int tls1_set_groups_list(SSL_CTX *ctx, 2854 uint16_t **grpext, size_t *grpextlen, 2855 uint16_t **ksext, size_t *ksextlen, 2856 size_t **tplext, size_t *tplextlen, 2857 const char *str); 2858 __owur EVP_PKEY *ssl_generate_pkey_group(SSL_CONNECTION *s, uint16_t id); 2859 __owur int tls_valid_group(SSL_CONNECTION *s, uint16_t group_id, int minversion, 2860 int maxversion, int isec, int *okfortls13); 2861 __owur EVP_PKEY *ssl_generate_param_group(SSL_CONNECTION *s, uint16_t id); 2862 void tls1_get_formatlist(SSL_CONNECTION *s, const unsigned char **pformats, 2863 size_t *num_formats); 2864 __owur int tls1_check_ec_tmp_key(SSL_CONNECTION *s, unsigned long id); 2865 2866 __owur int tls_group_allowed(SSL_CONNECTION *s, uint16_t curve, int op); 2867 void tls1_get_supported_groups(SSL_CONNECTION *s, const uint16_t **pgroups, 2868 size_t *pgroupslen); 2869 void tls1_get_requested_keyshare_groups(SSL_CONNECTION *s, const uint16_t **pgroups, 2870 size_t *pgroupslen); 2871 void tls1_get_group_tuples(SSL_CONNECTION *s, const size_t **ptuples, 2872 size_t *ptupleslen); 2873 2874 __owur int tls1_set_server_sigalgs(SSL_CONNECTION *s); 2875 2876 __owur SSL_TICKET_STATUS tls_get_ticket_from_client(SSL_CONNECTION *s, 2877 CLIENTHELLO_MSG *hello, 2878 SSL_SESSION **ret); 2879 __owur SSL_TICKET_STATUS tls_decrypt_ticket(SSL_CONNECTION *s, 2880 const unsigned char *etick, 2881 size_t eticklen, 2882 const unsigned char *sess_id, 2883 size_t sesslen, SSL_SESSION **psess); 2884 2885 __owur int tls_use_ticket(SSL_CONNECTION *s); 2886 2887 void ssl_set_sig_mask(uint32_t *pmask_a, SSL_CONNECTION *s, int op); 2888 2889 __owur int tls1_set_sigalgs_list(SSL_CTX *ctx, CERT *c, const char *str, int client); 2890 __owur int tls1_set_raw_sigalgs(CERT *c, const uint16_t *psigs, size_t salglen, 2891 int client); 2892 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, 2893 int client); 2894 int tls1_check_chain(SSL_CONNECTION *s, X509 *x, EVP_PKEY *pk, 2895 STACK_OF(X509) *chain, int idx); 2896 void tls1_set_cert_validity(SSL_CONNECTION *s); 2897 2898 #ifndef OPENSSL_NO_CT 2899 __owur int ssl_validate_ct(SSL_CONNECTION *s); 2900 #endif 2901 2902 __owur EVP_PKEY *ssl_get_auto_dh(SSL_CONNECTION *s); 2903 2904 __owur int ssl_security_cert(SSL_CONNECTION *s, SSL_CTX *ctx, X509 *x, int vfy, 2905 int is_ee); 2906 __owur int ssl_security_cert_chain(SSL_CONNECTION *s, STACK_OF(X509) *sk, 2907 X509 *ex, int vfy); 2908 2909 int tls_choose_sigalg(SSL_CONNECTION *s, int fatalerrs); 2910 2911 __owur long ssl_get_algorithm2(SSL_CONNECTION *s); 2912 __owur int tls12_copy_sigalgs(SSL_CONNECTION *s, WPACKET *pkt, 2913 const uint16_t *psig, size_t psiglen); 2914 __owur int tls1_save_u16(PACKET *pkt, uint16_t **pdest, size_t *pdestlen); 2915 __owur int tls1_save_sigalgs(SSL_CONNECTION *s, PACKET *pkt, int cert); 2916 __owur int tls1_process_sigalgs(SSL_CONNECTION *s); 2917 __owur int tls1_set_peer_legacy_sigalg(SSL_CONNECTION *s, const EVP_PKEY *pkey); 2918 __owur int tls1_lookup_md(SSL_CTX *ctx, const SIGALG_LOOKUP *lu, 2919 const EVP_MD **pmd); 2920 __owur size_t tls12_get_psigalgs(SSL_CONNECTION *s, int sent, 2921 const uint16_t **psigs); 2922 __owur int tls_check_sigalg_curve(const SSL_CONNECTION *s, int curve); 2923 __owur int tls12_check_peer_sigalg(SSL_CONNECTION *s, uint16_t, EVP_PKEY *pkey); 2924 __owur int ssl_set_client_disabled(SSL_CONNECTION *s); 2925 __owur int ssl_cipher_disabled(const SSL_CONNECTION *s, const SSL_CIPHER *c, 2926 int op, int echde); 2927 2928 __owur int ssl_handshake_hash(SSL_CONNECTION *s, 2929 unsigned char *out, size_t outlen, 2930 size_t *hashlen); 2931 __owur const EVP_MD *ssl_md(SSL_CTX *ctx, int idx); 2932 int ssl_get_md_idx(int md_nid); 2933 __owur const EVP_MD *ssl_handshake_md(SSL_CONNECTION *s); 2934 __owur const EVP_MD *ssl_prf_md(SSL_CONNECTION *s); 2935 2936 __owur int ossl_adjust_domain_flags(uint64_t domain_flags, 2937 uint64_t *p_domain_flags); 2938 2939 /* 2940 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated 2941 * with |ssl|, if logging is enabled. It returns one on success and zero on 2942 * failure. The entry is identified by the first 8 bytes of 2943 * |encrypted_premaster|. 2944 */ 2945 __owur int ssl_log_rsa_client_key_exchange(SSL_CONNECTION *s, 2946 const uint8_t *encrypted_premaster, 2947 size_t encrypted_premaster_len, 2948 const uint8_t *premaster, 2949 size_t premaster_len); 2950 2951 /* 2952 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if 2953 * logging is available. It returns one on success and zero on failure. It tags 2954 * the entry with |label|. 2955 */ 2956 __owur int ssl_log_secret(SSL_CONNECTION *s, const char *label, 2957 const uint8_t *secret, size_t secret_len); 2958 2959 #define MASTER_SECRET_LABEL "CLIENT_RANDOM" 2960 #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET" 2961 #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET" 2962 #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET" 2963 #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0" 2964 #define CLIENT_APPLICATION_N_LABEL "CLIENT_TRAFFIC_SECRET_N" 2965 #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0" 2966 #define SERVER_APPLICATION_N_LABEL "SERVER_TRAFFIC_SECRET_N" 2967 #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET" 2968 #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET" 2969 2970 __owur int srp_generate_server_master_secret(SSL_CONNECTION *s); 2971 __owur int srp_generate_client_master_secret(SSL_CONNECTION *s); 2972 __owur int srp_verify_server_param(SSL_CONNECTION *s); 2973 2974 /* statem/statem_srvr.c */ 2975 2976 __owur int send_certificate_request(SSL_CONNECTION *s); 2977 2978 /* statem/extensions_cust.c */ 2979 2980 custom_ext_method *custom_ext_find(const custom_ext_methods *exts, 2981 ENDPOINT role, unsigned int ext_type, 2982 size_t *idx); 2983 2984 void custom_ext_init(custom_ext_methods *meths); 2985 2986 int ossl_tls_add_custom_ext_intern(SSL_CTX *ctx, custom_ext_methods *exts, 2987 ENDPOINT role, unsigned int ext_type, 2988 unsigned int context, 2989 SSL_custom_ext_add_cb_ex add_cb, 2990 SSL_custom_ext_free_cb_ex free_cb, 2991 void *add_arg, 2992 SSL_custom_ext_parse_cb_ex parse_cb, 2993 void *parse_arg); 2994 __owur int custom_ext_parse(SSL_CONNECTION *s, unsigned int context, 2995 unsigned int ext_type, 2996 const unsigned char *ext_data, size_t ext_size, 2997 X509 *x, size_t chainidx); 2998 __owur int custom_ext_add(SSL_CONNECTION *s, int context, WPACKET *pkt, X509 *x, 2999 size_t chainidx, int maxversion); 3000 3001 __owur int custom_exts_copy(custom_ext_methods *dst, 3002 const custom_ext_methods *src); 3003 __owur int custom_exts_copy_conn(custom_ext_methods *dst, 3004 const custom_ext_methods *src); 3005 __owur int custom_exts_copy_flags(custom_ext_methods *dst, 3006 const custom_ext_methods *src); 3007 void custom_exts_free(custom_ext_methods *exts); 3008 3009 /* ssl_mcnf.c */ 3010 int ssl_ctx_system_config(SSL_CTX *ctx); 3011 3012 const EVP_CIPHER *ssl_evp_cipher_fetch(OSSL_LIB_CTX *libctx, 3013 int nid, 3014 const char *properties); 3015 int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher); 3016 void ssl_evp_cipher_free(const EVP_CIPHER *cipher); 3017 const EVP_MD *ssl_evp_md_fetch(OSSL_LIB_CTX *libctx, 3018 int nid, 3019 const char *properties); 3020 int ssl_evp_md_up_ref(const EVP_MD *md); 3021 void ssl_evp_md_free(const EVP_MD *md); 3022 3023 void tls_engine_finish(ENGINE *e); 3024 const EVP_CIPHER *tls_get_cipher_from_engine(int nid); 3025 const EVP_MD *tls_get_digest_from_engine(int nid); 3026 int tls_engine_load_ssl_client_cert(SSL_CONNECTION *s, X509 **px509, 3027 EVP_PKEY **ppkey); 3028 int ssl_hmac_old_new(SSL_HMAC *ret); 3029 void ssl_hmac_old_free(SSL_HMAC *ctx); 3030 int ssl_hmac_old_init(SSL_HMAC *ctx, void *key, size_t len, char *md); 3031 int ssl_hmac_old_update(SSL_HMAC *ctx, const unsigned char *data, size_t len); 3032 int ssl_hmac_old_final(SSL_HMAC *ctx, unsigned char *md, size_t *len); 3033 size_t ssl_hmac_old_size(const SSL_HMAC *ctx); 3034 3035 int ssl_ctx_srp_ctx_free_intern(SSL_CTX *ctx); 3036 int ssl_ctx_srp_ctx_init_intern(SSL_CTX *ctx); 3037 int ssl_srp_ctx_free_intern(SSL_CONNECTION *s); 3038 int ssl_srp_ctx_init_intern(SSL_CONNECTION *s); 3039 3040 int ssl_srp_calc_a_param_intern(SSL_CONNECTION *s); 3041 int ssl_srp_server_param_with_username_intern(SSL_CONNECTION *s, int *ad); 3042 3043 void ssl_session_calculate_timeout(SSL_SESSION *ss); 3044 3045 #else /* OPENSSL_UNIT_TEST */ 3046 3047 #define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer 3048 3049 #endif 3050 3051 /* Some helper routines to support TSAN operations safely */ 3052 static ossl_unused ossl_inline int ssl_tsan_lock(const SSL_CTX *ctx) 3053 { 3054 #ifdef TSAN_REQUIRES_LOCKING 3055 if (!CRYPTO_THREAD_write_lock(ctx->tsan_lock)) 3056 return 0; 3057 #endif 3058 return 1; 3059 } 3060 3061 static ossl_unused ossl_inline void ssl_tsan_unlock(const SSL_CTX *ctx) 3062 { 3063 #ifdef TSAN_REQUIRES_LOCKING 3064 CRYPTO_THREAD_unlock(ctx->tsan_lock); 3065 #endif 3066 } 3067 3068 static ossl_unused ossl_inline void ssl_tsan_counter(const SSL_CTX *ctx, 3069 TSAN_QUALIFIER int *stat) 3070 { 3071 if (ssl_tsan_lock(ctx)) { 3072 tsan_counter(stat); 3073 ssl_tsan_unlock(ctx); 3074 } 3075 } 3076 3077 int ossl_comp_has_alg(int a); 3078 size_t ossl_calculate_comp_expansion(int alg, size_t length); 3079 3080 void ossl_ssl_set_custom_record_layer(SSL_CONNECTION *s, 3081 const OSSL_RECORD_METHOD *meth, 3082 void *rlarg); 3083 3084 long ossl_ctrl_internal(SSL *s, int cmd, long larg, void *parg, int no_quic); 3085 3086 /* 3087 * Options which no longer have any effect, but which can be implemented 3088 * as no-ops for QUIC. 3089 */ 3090 #define OSSL_LEGACY_SSL_OPTIONS \ 3091 (SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG | SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER | SSL_OP_SSLEAY_080_CLIENT_DH_BUG | SSL_OP_TLS_D5_BUG | SSL_OP_TLS_BLOCK_PADDING_BUG | SSL_OP_MSIE_SSLV2_RSA_PADDING | SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG | SSL_OP_MICROSOFT_SESS_ID_BUG | SSL_OP_NETSCAPE_CHALLENGE_BUG | SSL_OP_PKCS1_CHECK_1 | SSL_OP_PKCS1_CHECK_2 | SSL_OP_SINGLE_DH_USE | SSL_OP_SINGLE_ECDH_USE | SSL_OP_EPHEMERAL_RSA) 3092 3093 /* This option is undefined in public headers with no-dtls1-method. */ 3094 #ifndef SSL_OP_CISCO_ANYCONNECT 3095 #define SSL_OP_CISCO_ANYCONNECT 0 3096 #endif 3097 /* 3098 * Options which are no-ops under QUIC or TLSv1.3 and which are therefore 3099 * allowed but ignored under QUIC. 3100 */ 3101 #define OSSL_TLS1_2_OPTIONS \ 3102 (SSL_OP_CRYPTOPRO_TLSEXT_BUG | SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS | SSL_OP_ALLOW_CLIENT_RENEGOTIATION | SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION | SSL_OP_NO_COMPRESSION | SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2 | SSL_OP_NO_DTLSv1 | SSL_OP_NO_DTLSv1_2 | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | SSL_OP_CISCO_ANYCONNECT | SSL_OP_NO_RENEGOTIATION | SSL_OP_NO_EXTENDED_MASTER_SECRET | SSL_OP_NO_ENCRYPT_THEN_MAC | SSL_OP_COOKIE_EXCHANGE | SSL_OP_LEGACY_SERVER_CONNECT | SSL_OP_IGNORE_UNEXPECTED_EOF) 3103 3104 /* Total mask of connection-level options permitted or ignored under QUIC. */ 3105 #define OSSL_QUIC_PERMITTED_OPTIONS_CONN \ 3106 (OSSL_LEGACY_SSL_OPTIONS | OSSL_TLS1_2_OPTIONS | SSL_OP_CIPHER_SERVER_PREFERENCE | SSL_OP_DISABLE_TLSEXT_CA_NAMES | SSL_OP_NO_TX_CERTIFICATE_COMPRESSION | SSL_OP_NO_RX_CERTIFICATE_COMPRESSION | SSL_OP_PRIORITIZE_CHACHA | SSL_OP_NO_QUERY_MTU | SSL_OP_NO_TICKET | SSL_OP_NO_ANTI_REPLAY) 3107 3108 /* Total mask of stream-level options permitted or ignored under QUIC. */ 3109 #define OSSL_QUIC_PERMITTED_OPTIONS_STREAM \ 3110 (OSSL_LEGACY_SSL_OPTIONS | OSSL_TLS1_2_OPTIONS | SSL_OP_CLEANSE_PLAINTEXT) 3111 3112 /* Total mask of options permitted on either connections or streams. */ 3113 #define OSSL_QUIC_PERMITTED_OPTIONS \ 3114 (OSSL_QUIC_PERMITTED_OPTIONS_CONN | OSSL_QUIC_PERMITTED_OPTIONS_STREAM) 3115 3116 /* Total mask of domain flags supported on a QUIC SSL_CTX. */ 3117 #define OSSL_QUIC_SUPPORTED_DOMAIN_FLAGS \ 3118 (SSL_DOMAIN_FLAG_SINGLE_THREAD | SSL_DOMAIN_FLAG_MULTI_THREAD | SSL_DOMAIN_FLAG_THREAD_ASSISTED | SSL_DOMAIN_FLAG_BLOCKING | SSL_DOMAIN_FLAG_LEGACY_BLOCKING) 3119 3120 #endif 3121
Indexes created Fri Jun 19 00:25:02 UTC 2026