include/openssl/ssl.h

   1 /*
   2  * Copyright 1995-2018 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 OpenSSL license (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 HEADER_SSL_H
  13 # define HEADER_SSL_H
  14
  15 # include <openssl/e_os2.h>
  16 # include <openssl/opensslconf.h>
  17 # include <openssl/comp.h>
  18 # include <openssl/bio.h>
  19 # if OPENSSL_API_COMPAT < 0x10100000L
  20 #  include <openssl/x509.h>
  21 #  include <openssl/crypto.h>
  22 #  include <openssl/buffer.h>
  23 # endif
  24 # include <openssl/lhash.h>
  25 # include <openssl/pem.h>
  26 # include <openssl/hmac.h>
  27 # include <openssl/async.h>
  28
  29 # include <openssl/safestack.h>
  30 # include <openssl/symhacks.h>
  31 # include <openssl/ct.h>
  32 # include <openssl/sslerr.h>
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 /* OpenSSL version number for ASN.1 encoding of the session information */
  39 /*-
  40  * Version 0 - initial version
  41  * Version 1 - added the optional peer certificate
  42  */
  43 # define SSL_SESSION_ASN1_VERSION 0x0001
  44
  45 # define SSL_MAX_SSL_SESSION_ID_LENGTH           32
  46 # define SSL_MAX_SID_CTX_LENGTH                  32
  47
  48 # define SSL_MIN_RSA_MODULUS_LENGTH_IN_BYTES     (512/8)
  49 # define SSL_MAX_KEY_ARG_LENGTH                  8
  50 # define SSL_MAX_MASTER_KEY_LENGTH               48
  51 # define TLS13_MAX_RESUMPTION_MASTER_LENGTH      64
  52
  53 /* The maximum number of encrypt/decrypt pipelines we can support */
  54 # define SSL_MAX_PIPELINES  32
  55
  56 /* text strings for the ciphers */
  57
  58 /* These are used to specify which ciphers to use and not to use */
  59
  60 # define SSL_TXT_LOW             "LOW"
  61 # define SSL_TXT_MEDIUM          "MEDIUM"
  62 # define SSL_TXT_HIGH            "HIGH"
  63 # define SSL_TXT_FIPS            "FIPS"
  64
  65 # define SSL_TXT_aNULL           "aNULL"
  66 # define SSL_TXT_eNULL           "eNULL"
  67 # define SSL_TXT_NULL            "NULL"
  68
  69 # define SSL_TXT_kRSA            "kRSA"
  70 # define SSL_TXT_kDHr            "kDHr"/* this cipher class has been removed */
  71 # define SSL_TXT_kDHd            "kDHd"/* this cipher class has been removed */
  72 # define SSL_TXT_kDH             "kDH"/* this cipher class has been removed */
  73 # define SSL_TXT_kEDH            "kEDH"/* alias for kDHE */
  74 # define SSL_TXT_kDHE            "kDHE"
  75 # define SSL_TXT_kECDHr          "kECDHr"/* this cipher class has been removed */
  76 # define SSL_TXT_kECDHe          "kECDHe"/* this cipher class has been removed */
  77 # define SSL_TXT_kECDH           "kECDH"/* this cipher class has been removed */
  78 # define SSL_TXT_kEECDH          "kEECDH"/* alias for kECDHE */
  79 # define SSL_TXT_kECDHE          "kECDHE"
  80 # define SSL_TXT_kPSK            "kPSK"
  81 # define SSL_TXT_kRSAPSK         "kRSAPSK"
  82 # define SSL_TXT_kECDHEPSK       "kECDHEPSK"
  83 # define SSL_TXT_kDHEPSK         "kDHEPSK"
  84 # define SSL_TXT_kGOST           "kGOST"
  85 # define SSL_TXT_kSRP            "kSRP"
  86
  87 # define SSL_TXT_aRSA            "aRSA"
  88 # define SSL_TXT_aDSS            "aDSS"
  89 # define SSL_TXT_aDH             "aDH"/* this cipher class has been removed */
  90 # define SSL_TXT_aECDH           "aECDH"/* this cipher class has been removed */
  91 # define SSL_TXT_aECDSA          "aECDSA"
  92 # define SSL_TXT_aPSK            "aPSK"
  93 # define SSL_TXT_aGOST94         "aGOST94"
  94 # define SSL_TXT_aGOST01         "aGOST01"
  95 # define SSL_TXT_aGOST12         "aGOST12"
  96 # define SSL_TXT_aGOST           "aGOST"
  97 # define SSL_TXT_aSRP            "aSRP"
  98
  99 # define SSL_TXT_DSS             "DSS"
 100 # define SSL_TXT_DH              "DH"
 101 # define SSL_TXT_DHE             "DHE"/* same as "kDHE:-ADH" */
 102 # define SSL_TXT_EDH             "EDH"/* alias for DHE */
 103 # define SSL_TXT_ADH             "ADH"
 104 # define SSL_TXT_RSA             "RSA"
 105 # define SSL_TXT_ECDH            "ECDH"
 106 # define SSL_TXT_EECDH           "EECDH"/* alias for ECDHE" */
 107 # define SSL_TXT_ECDHE           "ECDHE"/* same as "kECDHE:-AECDH" */
 108 # define SSL_TXT_AECDH           "AECDH"
 109 # define SSL_TXT_ECDSA           "ECDSA"
 110 # define SSL_TXT_PSK             "PSK"
 111 # define SSL_TXT_SRP             "SRP"
 112
 113 # define SSL_TXT_DES             "DES"
 114 # define SSL_TXT_3DES            "3DES"
 115 # define SSL_TXT_RC4             "RC4"
 116 # define SSL_TXT_RC2             "RC2"
 117 # define SSL_TXT_IDEA            "IDEA"
 118 # define SSL_TXT_SEED            "SEED"
 119 # define SSL_TXT_AES128          "AES128"
 120 # define SSL_TXT_AES256          "AES256"
 121 # define SSL_TXT_AES             "AES"
 122 # define SSL_TXT_AES_GCM         "AESGCM"
 123 # define SSL_TXT_AES_CCM         "AESCCM"
 124 # define SSL_TXT_AES_CCM_8       "AESCCM8"
 125 # define SSL_TXT_CAMELLIA128     "CAMELLIA128"
 126 # define SSL_TXT_CAMELLIA256     "CAMELLIA256"
 127 # define SSL_TXT_CAMELLIA        "CAMELLIA"
 128 # define SSL_TXT_CHACHA20        "CHACHA20"
 129 # define SSL_TXT_GOST            "GOST89"
 130 # define SSL_TXT_ARIA            "ARIA"
 131 # define SSL_TXT_ARIA_GCM        "ARIAGCM"
 132 # define SSL_TXT_ARIA128         "ARIA128"
 133 # define SSL_TXT_ARIA256         "ARIA256"
 134
 135 # define SSL_TXT_MD5             "MD5"
 136 # define SSL_TXT_SHA1            "SHA1"
 137 # define SSL_TXT_SHA             "SHA"/* same as "SHA1" */
 138 # define SSL_TXT_GOST94          "GOST94"
 139 # define SSL_TXT_GOST89MAC       "GOST89MAC"
 140 # define SSL_TXT_GOST12          "GOST12"
 141 # define SSL_TXT_GOST89MAC12     "GOST89MAC12"
 142 # define SSL_TXT_SHA256          "SHA256"
 143 # define SSL_TXT_SHA384          "SHA384"
 144
 145 # define SSL_TXT_SSLV3           "SSLv3"
 146 # define SSL_TXT_TLSV1           "TLSv1"
 147 # define SSL_TXT_TLSV1_1         "TLSv1.1"
 148 # define SSL_TXT_TLSV1_2         "TLSv1.2"
 149
 150 # define SSL_TXT_ALL             "ALL"
 151
 152 /*-
 153  * COMPLEMENTOF* definitions. These identifiers are used to (de-select)
 154  * ciphers normally not being used.
 155  * Example: "RC4" will activate all ciphers using RC4 including ciphers
 156  * without authentication, which would normally disabled by DEFAULT (due
 157  * the "!ADH" being part of default). Therefore "RC4:!COMPLEMENTOFDEFAULT"
 158  * will make sure that it is also disabled in the specific selection.
 159  * COMPLEMENTOF* identifiers are portable between version, as adjustments
 160  * to the default cipher setup will also be included here.
 161  *
 162  * COMPLEMENTOFDEFAULT does not experience the same special treatment that
 163  * DEFAULT gets, as only selection is being done and no sorting as needed
 164  * for DEFAULT.
 165  */
 166 # define SSL_TXT_CMPALL          "COMPLEMENTOFALL"
 167 # define SSL_TXT_CMPDEF          "COMPLEMENTOFDEFAULT"
 168
 169 /*
 170  * The following cipher list is used by default. It also is substituted when
 171  * an application-defined cipher list string starts with 'DEFAULT'.
 172  * This applies to ciphersuites for TLSv1.2 and below.
 173  */
 174 # define SSL_DEFAULT_CIPHER_LIST "ALL:!COMPLEMENTOFDEFAULT:!eNULL"
 175 /* This is the default set of TLSv1.3 ciphersuites */
 176 # define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \
 177                                   "TLS_CHACHA20_POLY1305_SHA256:" \
 178                                   "TLS_AES_128_GCM_SHA256"
 179 /*
 180  * As of OpenSSL 1.0.0, ssl_create_cipher_list() in ssl/ssl_ciph.c always
 181  * starts with a reasonable order, and all we have to do for DEFAULT is
 182  * throwing out anonymous and unencrypted ciphersuites! (The latter are not
 183  * actually enabled by ALL, but "ALL:RSA" would enable some of them.)
 184  */
 185
 186 /* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
 187 # define SSL_SENT_SHUTDOWN       1
 188 # define SSL_RECEIVED_SHUTDOWN   2
 189
 190 #ifdef __cplusplus
 191 }
 192 #endif
 193
 194 #ifdef  __cplusplus
 195 extern "C" {
 196 #endif
 197
 198 # define SSL_FILETYPE_ASN1       X509_FILETYPE_ASN1
 199 # define SSL_FILETYPE_PEM        X509_FILETYPE_PEM
 200
 201 /*
 202  * This is needed to stop compilers complaining about the 'struct ssl_st *'
 203  * function parameters used to prototype callbacks in SSL_CTX.
 204  */
 205 typedef struct ssl_st *ssl_crock_st;
 206 typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
 207 typedef struct ssl_method_st SSL_METHOD;
 208 typedef struct ssl_cipher_st SSL_CIPHER;
 209 typedef struct ssl_session_st SSL_SESSION;
 210 typedef struct tls_sigalgs_st TLS_SIGALGS;
 211 typedef struct ssl_conf_ctx_st SSL_CONF_CTX;
 212 typedef struct ssl_comp_st SSL_COMP;
 213
 214 STACK_OF(SSL_CIPHER);
 215 STACK_OF(SSL_COMP);
 216
 217 /* SRTP protection profiles for use with the use_srtp extension (RFC 5764)*/
 218 typedef struct srtp_protection_profile_st {
 219     const char *name;
 220     unsigned long id;
 221 } SRTP_PROTECTION_PROFILE;
 222
 223 DEFINE_STACK_OF(SRTP_PROTECTION_PROFILE)
 224
 225 typedef int (*tls_session_ticket_ext_cb_fn) (SSL *s,
 226                                              const unsigned char *data,
 227                                              int len, void *arg);
 228 typedef int (*tls_session_secret_cb_fn) (SSL *s, void *secret,
 229                                          int *secret_len,
 230                                          STACK_OF(SSL_CIPHER) *peer_ciphers,
 231                                          const SSL_CIPHER **cipher, void *arg);
 232
 233 /* Extension context codes */
 234 /* This extension is only allowed in TLS */
 235 #define SSL_EXT_TLS_ONLY                        0x0001
 236 /* This extension is only allowed in DTLS */
 237 #define SSL_EXT_DTLS_ONLY                       0x0002
 238 /* Some extensions may be allowed in DTLS but we don't implement them for it */
 239 #define SSL_EXT_TLS_IMPLEMENTATION_ONLY         0x0004
 240 /* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
 241 #define SSL_EXT_SSL3_ALLOWED                    0x0008
 242 /* Extension is only defined for TLS1.2 and below */
 243 #define SSL_EXT_TLS1_2_AND_BELOW_ONLY           0x0010
 244 /* Extension is only defined for TLS1.3 and above */
 245 #define SSL_EXT_TLS1_3_ONLY                     0x0020
 246 /* Ignore this extension during parsing if we are resuming */
 247 #define SSL_EXT_IGNORE_ON_RESUMPTION            0x0040
 248 #define SSL_EXT_CLIENT_HELLO                    0x0080
 249 /* Really means TLS1.2 or below */
 250 #define SSL_EXT_TLS1_2_SERVER_HELLO             0x0100
 251 #define SSL_EXT_TLS1_3_SERVER_HELLO             0x0200
 252 #define SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS     0x0400
 253 #define SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST      0x0800
 254 #define SSL_EXT_TLS1_3_CERTIFICATE              0x1000
 255 #define SSL_EXT_TLS1_3_NEW_SESSION_TICKET       0x2000
 256 #define SSL_EXT_TLS1_3_CERTIFICATE_REQUEST      0x4000
 257
 258 /* Typedefs for handling custom extensions */
 259
 260 typedef int (*custom_ext_add_cb) (SSL *s, unsigned int ext_type,
 261                                   const unsigned char **out,
 262                                   size_t *outlen, int *al, void *add_arg);
 263
 264 typedef void (*custom_ext_free_cb) (SSL *s, unsigned int ext_type,
 265                                     const unsigned char *out, void *add_arg);
 266
 267 typedef int (*custom_ext_parse_cb) (SSL *s, unsigned int ext_type,
 268                                     const unsigned char *in,
 269                                     size_t inlen, int *al, void *parse_arg);
 270
 271
 272 typedef int (*SSL_custom_ext_add_cb_ex) (SSL *s, unsigned int ext_type,
 273                                          unsigned int context,
 274                                          const unsigned char **out,
 275                                          size_t *outlen, X509 *x,
 276                                          size_t chainidx,
 277                                          int *al, void *add_arg);
 278
 279 typedef void (*SSL_custom_ext_free_cb_ex) (SSL *s, unsigned int ext_type,
 280                                            unsigned int context,
 281                                            const unsigned char *out,
 282                                            void *add_arg);
 283
 284 typedef int (*SSL_custom_ext_parse_cb_ex) (SSL *s, unsigned int ext_type,
 285                                            unsigned int context,
 286                                            const unsigned char *in,
 287                                            size_t inlen, X509 *x,
 288                                            size_t chainidx,
 289                                            int *al, void *parse_arg);
 290
 291 /* Typedef for verification callback */
 292 typedef int (*SSL_verify_cb)(int preverify_ok, X509_STORE_CTX *x509_ctx);
 293
 294 /*
 295  * Some values are reserved until OpenSSL 1.2.0 because they were previously
 296  * included in SSL_OP_ALL in a 1.1.x release.
 297  *
 298  * Reserved value (until OpenSSL 1.2.0)                  0x00000001U
 299  * Reserved value (until OpenSSL 1.2.0)                  0x00000002U
 300  */
 301 /* Allow initial connection to servers that don't support RI */
 302 # define SSL_OP_LEGACY_SERVER_CONNECT                    0x00000004U
 303
 304 /* Reserved value (until OpenSSL 1.2.0)                  0x00000008U */
 305 # define SSL_OP_TLSEXT_PADDING                           0x00000010U
 306 /* Reserved value (until OpenSSL 1.2.0)                  0x00000020U */
 307 # define SSL_OP_SAFARI_ECDHE_ECDSA_BUG                   0x00000040U
 308 /*
 309  * Reserved value (until OpenSSL 1.2.0)                  0x00000080U
 310  * Reserved value (until OpenSSL 1.2.0)                  0x00000100U
 311  * Reserved value (until OpenSSL 1.2.0)                  0x00000200U
 312  */
 313
 314 /* In TLSv1.3 allow a non-(ec)dhe based kex_mode */
 315 # define SSL_OP_ALLOW_NO_DHE_KEX                         0x00000400U
 316
 317 /*
 318  * Disable SSL 3.0/TLS 1.0 CBC vulnerability workaround that was added in
 319  * OpenSSL 0.9.6d.  Usually (depending on the application protocol) the
 320  * workaround is not needed.  Unfortunately some broken SSL/TLS
 321  * implementations cannot handle it at all, which is why we include it in
 322  * SSL_OP_ALL. Added in 0.9.6e
 323  */
 324 # define SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS              0x00000800U
 325
 326 /* DTLS options */
 327 # define SSL_OP_NO_QUERY_MTU                             0x00001000U
 328 /* Turn on Cookie Exchange (on relevant for servers) */
 329 # define SSL_OP_COOKIE_EXCHANGE                          0x00002000U
 330 /* Don't use RFC4507 ticket extension */
 331 # define SSL_OP_NO_TICKET                                0x00004000U
 332 # ifndef OPENSSL_NO_DTLS1_METHOD
 333 /* Use Cisco's "speshul" version of DTLS_BAD_VER
 334  * (only with deprecated DTLSv1_client_method())  */
 335 #  define SSL_OP_CISCO_ANYCONNECT                        0x00008000U
 336 # endif
 337
 338 /* As server, disallow session resumption on renegotiation */
 339 # define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION   0x00010000U
 340 /* Don't use compression even if supported */
 341 # define SSL_OP_NO_COMPRESSION                           0x00020000U
 342 /* Permit unsafe legacy renegotiation */
 343 # define SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION        0x00040000U
 344 /* Disable encrypt-then-mac */
 345 # define SSL_OP_NO_ENCRYPT_THEN_MAC                      0x00080000U
 346
 347 /*
 348  * Enable TLSv1.3 Compatibility mode. This is on by default. A future version
 349  * of OpenSSL may have this disabled by default.
 350  */
 351 # define SSL_OP_ENABLE_MIDDLEBOX_COMPAT                  0x00100000U
 352
 353 /* Prioritize Chacha20Poly1305 when client does.
 354  * Modifies SSL_OP_CIPHER_SERVER_PREFERENCE */
 355 # define SSL_OP_PRIORITIZE_CHACHA                        0x00200000U
 356
 357 /*
 358  * Set on servers to choose the cipher according to the server's preferences
 359  */
 360 # define SSL_OP_CIPHER_SERVER_PREFERENCE                 0x00400000U
 361 /*
 362  * If set, a server will allow a client to issue a SSLv3.0 version number as
 363  * latest version supported in the premaster secret, even when TLSv1.0
 364  * (version 3.1) was announced in the client hello. Normally this is
 365  * forbidden to prevent version rollback attacks.
 366  */
 367 # define SSL_OP_TLS_ROLLBACK_BUG                         0x00800000U
 368
 369 # define SSL_OP_NO_SSLv3                                 0x02000000U
 370 # define SSL_OP_NO_TLSv1                                 0x04000000U
 371 # define SSL_OP_NO_TLSv1_2                               0x08000000U
 372 # define SSL_OP_NO_TLSv1_1                               0x10000000U
 373 # define SSL_OP_NO_TLSv1_3                               0x20000000U
 374
 375 # define SSL_OP_NO_DTLSv1                                0x04000000U
 376 # define SSL_OP_NO_DTLSv1_2                              0x08000000U
 377
 378 # define SSL_OP_NO_SSL_MASK (SSL_OP_NO_SSLv3|\
 379         SSL_OP_NO_TLSv1|SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1_2|SSL_OP_NO_TLSv1_3)
 380 # define SSL_OP_NO_DTLS_MASK (SSL_OP_NO_DTLSv1|SSL_OP_NO_DTLSv1_2)
 381
 382 /* Disallow all renegotiation */
 383 # define SSL_OP_NO_RENEGOTIATION                         0x40000000U
 384
 385 /*
 386  * Make server add server-hello extension from early version of cryptopro
 387  * draft, when GOST ciphersuite is negotiated. Required for interoperability
 388  * with CryptoPro CSP 3.x
 389  */
 390 # define SSL_OP_CRYPTOPRO_TLSEXT_BUG                     0x80000000U
 391
 392 /*
 393  * SSL_OP_ALL: various bug workarounds that should be rather harmless.
 394  * This used to be 0x000FFFFFL before 0.9.7.
 395  * This used to be 0x80000BFFU before 1.1.1.
 396  */
 397 # define SSL_OP_ALL        (SSL_OP_CRYPTOPRO_TLSEXT_BUG|\
 398                             SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS|\
 399                             SSL_OP_LEGACY_SERVER_CONNECT|\
 400                             SSL_OP_TLSEXT_PADDING|\
 401                             SSL_OP_SAFARI_ECDHE_ECDSA_BUG)
 402
 403 /* OBSOLETE OPTIONS: retained for compatibility */
 404
 405 /* Removed from OpenSSL 1.1.0. Was 0x00000001L */
 406 /* Related to removed SSLv2. */
 407 # define SSL_OP_MICROSOFT_SESS_ID_BUG                    0x0
 408 /* Removed from OpenSSL 1.1.0. Was 0x00000002L */
 409 /* Related to removed SSLv2. */
 410 # define SSL_OP_NETSCAPE_CHALLENGE_BUG                   0x0
 411 /* Removed from OpenSSL 0.9.8q and 1.0.0c. Was 0x00000008L */
 412 /* Dead forever, see CVE-2010-4180 */
 413 # define SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG         0x0
 414 /* Removed from OpenSSL 1.0.1h and 1.0.2. Was 0x00000010L */
 415 /* Refers to ancient SSLREF and SSLv2. */
 416 # define SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG              0x0
 417 /* Removed from OpenSSL 1.1.0. Was 0x00000020 */
 418 # define SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER               0x0
 419 /* Removed from OpenSSL 0.9.7h and 0.9.8b. Was 0x00000040L */
 420 # define SSL_OP_MSIE_SSLV2_RSA_PADDING                   0x0
 421 /* Removed from OpenSSL 1.1.0. Was 0x00000080 */
 422 /* Ancient SSLeay version. */
 423 # define SSL_OP_SSLEAY_080_CLIENT_DH_BUG                 0x0
 424 /* Removed from OpenSSL 1.1.0. Was 0x00000100L */
 425 # define SSL_OP_TLS_D5_BUG                               0x0
 426 /* Removed from OpenSSL 1.1.0. Was 0x00000200L */
 427 # define SSL_OP_TLS_BLOCK_PADDING_BUG                    0x0
 428 /* Removed from OpenSSL 1.1.0. Was 0x00080000L */
 429 # define SSL_OP_SINGLE_ECDH_USE                          0x0
 430 /* Removed from OpenSSL 1.1.0. Was 0x00100000L */
 431 # define SSL_OP_SINGLE_DH_USE                            0x0
 432 /* Removed from OpenSSL 1.0.1k and 1.0.2. Was 0x00200000L */
 433 # define SSL_OP_EPHEMERAL_RSA                            0x0
 434 /* Removed from OpenSSL 1.1.0. Was 0x01000000L */
 435 # define SSL_OP_NO_SSLv2                                 0x0
 436 /* Removed from OpenSSL 1.0.1. Was 0x08000000L */
 437 # define SSL_OP_PKCS1_CHECK_1                            0x0
 438 /* Removed from OpenSSL 1.0.1. Was 0x10000000L */
 439 # define SSL_OP_PKCS1_CHECK_2                            0x0
 440 /* Removed from OpenSSL 1.1.0. Was 0x20000000L */
 441 # define SSL_OP_NETSCAPE_CA_DN_BUG                       0x0
 442 /* Removed from OpenSSL 1.1.0. Was 0x40000000L */
 443 # define SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG          0x0
 444
 445 /*
 446  * Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
 447  * when just a single record has been written):
 448  */
 449 # define SSL_MODE_ENABLE_PARTIAL_WRITE       0x00000001U
 450 /*
 451  * Make it possible to retry SSL_write() with changed buffer location (buffer
 452  * contents must stay the same!); this is not the default to avoid the
 453  * misconception that non-blocking SSL_write() behaves like non-blocking
 454  * write():
 455  */
 456 # define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002U
 457 /*
 458  * Never bother the application with retries if the transport is blocking:
 459  */
 460 # define SSL_MODE_AUTO_RETRY 0x00000004U
 461 /* Don't attempt to automatically build certificate chain */
 462 # define SSL_MODE_NO_AUTO_CHAIN 0x00000008U
 463 /*
 464  * Save RAM by releasing read and write buffers when they're empty. (SSL3 and
 465  * TLS only.) Released buffers are freed.
 466  */
 467 # define SSL_MODE_RELEASE_BUFFERS 0x00000010U
 468 /*
 469  * Send the current time in the Random fields of the ClientHello and
 470  * ServerHello records for compatibility with hypothetical implementations
 471  * that require it.
 472  */
 473 # define SSL_MODE_SEND_CLIENTHELLO_TIME 0x00000020U
 474 # define SSL_MODE_SEND_SERVERHELLO_TIME 0x00000040U
 475 /*
 476  * Send TLS_FALLBACK_SCSV in the ClientHello. To be set only by applications
 477  * that reconnect with a downgraded protocol version; see
 478  * draft-ietf-tls-downgrade-scsv-00 for details. DO NOT ENABLE THIS if your
 479  * application attempts a normal handshake. Only use this in explicit
 480  * fallback retries, following the guidance in
 481  * draft-ietf-tls-downgrade-scsv-00.
 482  */
 483 # define SSL_MODE_SEND_FALLBACK_SCSV 0x00000080U
 484 /*
 485  * Support Asynchronous operation
 486  */
 487 # define SSL_MODE_ASYNC 0x00000100U
 488
 489 /* Cert related flags */
 490 /*
 491  * Many implementations ignore some aspects of the TLS standards such as
 492  * enforcing certificate chain algorithms. When this is set we enforce them.
 493  */
 494 # define SSL_CERT_FLAG_TLS_STRICT                0x00000001U
 495
 496 /* Suite B modes, takes same values as certificate verify flags */
 497 # define SSL_CERT_FLAG_SUITEB_128_LOS_ONLY       0x10000
 498 /* Suite B 192 bit only mode */
 499 # define SSL_CERT_FLAG_SUITEB_192_LOS            0x20000
 500 /* Suite B 128 bit mode allowing 192 bit algorithms */
 501 # define SSL_CERT_FLAG_SUITEB_128_LOS            0x30000
 502
 503 /* Perform all sorts of protocol violations for testing purposes */
 504 # define SSL_CERT_FLAG_BROKEN_PROTOCOL           0x10000000
 505
 506 /* Flags for building certificate chains */
 507 /* Treat any existing certificates as untrusted CAs */
 508 # define SSL_BUILD_CHAIN_FLAG_UNTRUSTED          0x1
 509 /* Don't include root CA in chain */
 510 # define SSL_BUILD_CHAIN_FLAG_NO_ROOT            0x2
 511 /* Just check certificates already there */
 512 # define SSL_BUILD_CHAIN_FLAG_CHECK              0x4
 513 /* Ignore verification errors */
 514 # define SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR       0x8
 515 /* Clear verification errors from queue */
 516 # define SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR        0x10
 517
 518 /* Flags returned by SSL_check_chain */
 519 /* Certificate can be used with this session */
 520 # define CERT_PKEY_VALID         0x1
 521 /* Certificate can also be used for signing */
 522 # define CERT_PKEY_SIGN          0x2
 523 /* EE certificate signing algorithm OK */
 524 # define CERT_PKEY_EE_SIGNATURE  0x10
 525 /* CA signature algorithms OK */
 526 # define CERT_PKEY_CA_SIGNATURE  0x20
 527 /* EE certificate parameters OK */
 528 # define CERT_PKEY_EE_PARAM      0x40
 529 /* CA certificate parameters OK */
 530 # define CERT_PKEY_CA_PARAM      0x80
 531 /* Signing explicitly allowed as opposed to SHA1 fallback */
 532 # define CERT_PKEY_EXPLICIT_SIGN 0x100
 533 /* Client CA issuer names match (always set for server cert) */
 534 # define CERT_PKEY_ISSUER_NAME   0x200
 535 /* Cert type matches client types (always set for server cert) */
 536 # define CERT_PKEY_CERT_TYPE     0x400
 537 /* Cert chain suitable to Suite B */
 538 # define CERT_PKEY_SUITEB        0x800
 539
 540 # define SSL_CONF_FLAG_CMDLINE           0x1
 541 # define SSL_CONF_FLAG_FILE              0x2
 542 # define SSL_CONF_FLAG_CLIENT            0x4
 543 # define SSL_CONF_FLAG_SERVER            0x8
 544 # define SSL_CONF_FLAG_SHOW_ERRORS       0x10
 545 # define SSL_CONF_FLAG_CERTIFICATE       0x20
 546 # define SSL_CONF_FLAG_REQUIRE_PRIVATE   0x40
 547 /* Configuration value types */
 548 # define SSL_CONF_TYPE_UNKNOWN           0x0
 549 # define SSL_CONF_TYPE_STRING            0x1
 550 # define SSL_CONF_TYPE_FILE              0x2
 551 # define SSL_CONF_TYPE_DIR               0x3
 552 # define SSL_CONF_TYPE_NONE              0x4
 553
 554 /* Maximum length of the application-controlled segment of a a TLSv1.3 cookie */
 555 # define SSL_COOKIE_LENGTH                       4096
 556
 557 /*
 558  * Note: SSL[_CTX]_set_{options,mode} use |= op on the previous value, they
 559  * cannot be used to clear bits.
 560  */
 561
 562 unsigned long SSL_CTX_get_options(const SSL_CTX *ctx);
 563 unsigned long SSL_get_options(const SSL* s);
 564 unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op);
 565 unsigned long SSL_clear_options(SSL *s, unsigned long op);
 566 unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op);
 567 unsigned long SSL_set_options(SSL *s, unsigned long op);
 568
 569 # define SSL_CTX_set_mode(ctx,op) \
 570         SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,(op),NULL)
 571 # define SSL_CTX_clear_mode(ctx,op) \
 572         SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_MODE,(op),NULL)
 573 # define SSL_CTX_get_mode(ctx) \
 574         SSL_CTX_ctrl((ctx),SSL_CTRL_MODE,0,NULL)
 575 # define SSL_clear_mode(ssl,op) \
 576         SSL_ctrl((ssl),SSL_CTRL_CLEAR_MODE,(op),NULL)
 577 # define SSL_set_mode(ssl,op) \
 578         SSL_ctrl((ssl),SSL_CTRL_MODE,(op),NULL)
 579 # define SSL_get_mode(ssl) \
 580         SSL_ctrl((ssl),SSL_CTRL_MODE,0,NULL)
 581 # define SSL_set_mtu(ssl, mtu) \
 582         SSL_ctrl((ssl),SSL_CTRL_SET_MTU,(mtu),NULL)
 583 # define DTLS_set_link_mtu(ssl, mtu) \
 584         SSL_ctrl((ssl),DTLS_CTRL_SET_LINK_MTU,(mtu),NULL)
 585 # define DTLS_get_link_min_mtu(ssl) \
 586         SSL_ctrl((ssl),DTLS_CTRL_GET_LINK_MIN_MTU,0,NULL)
 587
 588 # define SSL_get_secure_renegotiation_support(ssl) \
 589         SSL_ctrl((ssl), SSL_CTRL_GET_RI_SUPPORT, 0, NULL)
 590
 591 # ifndef OPENSSL_NO_HEARTBEATS
 592 #  define SSL_heartbeat(ssl) \
 593         SSL_ctrl((ssl),SSL_CTRL_DTLS_EXT_SEND_HEARTBEAT,0,NULL)
 594 # endif
 595
 596 # define SSL_CTX_set_cert_flags(ctx,op) \
 597         SSL_CTX_ctrl((ctx),SSL_CTRL_CERT_FLAGS,(op),NULL)
 598 # define SSL_set_cert_flags(s,op) \
 599         SSL_ctrl((s),SSL_CTRL_CERT_FLAGS,(op),NULL)
 600 # define SSL_CTX_clear_cert_flags(ctx,op) \
 601         SSL_CTX_ctrl((ctx),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
 602 # define SSL_clear_cert_flags(s,op) \
 603         SSL_ctrl((s),SSL_CTRL_CLEAR_CERT_FLAGS,(op),NULL)
 604
 605 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
 606                               void (*cb) (int write_p, int version,
 607                                           int content_type, const void *buf,
 608                                           size_t len, SSL *ssl, void *arg));
 609 void SSL_set_msg_callback(SSL *ssl,
 610                           void (*cb) (int write_p, int version,
 611                                       int content_type, const void *buf,
 612                                       size_t len, SSL *ssl, void *arg));
 613 # define SSL_CTX_set_msg_callback_arg(ctx, arg) SSL_CTX_ctrl((ctx), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
 614 # define SSL_set_msg_callback_arg(ssl, arg) SSL_ctrl((ssl), SSL_CTRL_SET_MSG_CALLBACK_ARG, 0, (arg))
 615
 616 # define SSL_get_extms_support(s) \
 617         SSL_ctrl((s),SSL_CTRL_GET_EXTMS_SUPPORT,0,NULL)
 618
 619 # ifndef OPENSSL_NO_SRP
 620
 621 /* see tls_srp.c */
 622 __owur int SSL_SRP_CTX_init(SSL *s);
 623 __owur int SSL_CTX_SRP_CTX_init(SSL_CTX *ctx);
 624 int SSL_SRP_CTX_free(SSL *ctx);
 625 int SSL_CTX_SRP_CTX_free(SSL_CTX *ctx);
 626 __owur int SSL_srp_server_param_with_username(SSL *s, int *ad);
 627 __owur int SRP_Calc_A_param(SSL *s);
 628
 629 # endif
 630
 631 /* 100k max cert list */
 632 # define SSL_MAX_CERT_LIST_DEFAULT 1024*100
 633
 634 # define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT      (1024*20)
 635
 636 /*
 637  * This callback type is used inside SSL_CTX, SSL, and in the functions that
 638  * set them. It is used to override the generation of SSL/TLS session IDs in
 639  * a server. Return value should be zero on an error, non-zero to proceed.
 640  * Also, callbacks should themselves check if the id they generate is unique
 641  * otherwise the SSL handshake will fail with an error - callbacks can do
 642  * this using the 'ssl' value they're passed by;
 643  * SSL_has_matching_session_id(ssl, id, *id_len) The length value passed in
 644  * is set at the maximum size the session ID can be. In SSLv3/TLSv1 it is 32
 645  * bytes. The callback can alter this length to be less if desired. It is
 646  * also an error for the callback to set the size to zero.
 647  */
 648 typedef int (*GEN_SESSION_CB) (SSL *ssl, unsigned char *id,
 649                                unsigned int *id_len);
 650
 651 # define SSL_SESS_CACHE_OFF                      0x0000
 652 # define SSL_SESS_CACHE_CLIENT                   0x0001
 653 # define SSL_SESS_CACHE_SERVER                   0x0002
 654 # define SSL_SESS_CACHE_BOTH     (SSL_SESS_CACHE_CLIENT|SSL_SESS_CACHE_SERVER)
 655 # define SSL_SESS_CACHE_NO_AUTO_CLEAR            0x0080
 656 /* enough comments already ... see SSL_CTX_set_session_cache_mode(3) */
 657 # define SSL_SESS_CACHE_NO_INTERNAL_LOOKUP       0x0100
 658 # define SSL_SESS_CACHE_NO_INTERNAL_STORE        0x0200
 659 # define SSL_SESS_CACHE_NO_INTERNAL \
 660         (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP|SSL_SESS_CACHE_NO_INTERNAL_STORE)
 661
 662 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx);
 663 # define SSL_CTX_sess_number(ctx) \
 664         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_NUMBER,0,NULL)
 665 # define SSL_CTX_sess_connect(ctx) \
 666         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT,0,NULL)
 667 # define SSL_CTX_sess_connect_good(ctx) \
 668         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_GOOD,0,NULL)
 669 # define SSL_CTX_sess_connect_renegotiate(ctx) \
 670         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CONNECT_RENEGOTIATE,0,NULL)
 671 # define SSL_CTX_sess_accept(ctx) \
 672         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT,0,NULL)
 673 # define SSL_CTX_sess_accept_renegotiate(ctx) \
 674         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_RENEGOTIATE,0,NULL)
 675 # define SSL_CTX_sess_accept_good(ctx) \
 676         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_ACCEPT_GOOD,0,NULL)
 677 # define SSL_CTX_sess_hits(ctx) \
 678         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_HIT,0,NULL)
 679 # define SSL_CTX_sess_cb_hits(ctx) \
 680         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CB_HIT,0,NULL)
 681 # define SSL_CTX_sess_misses(ctx) \
 682         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_MISSES,0,NULL)
 683 # define SSL_CTX_sess_timeouts(ctx) \
 684         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_TIMEOUTS,0,NULL)
 685 # define SSL_CTX_sess_cache_full(ctx) \
 686         SSL_CTX_ctrl(ctx,SSL_CTRL_SESS_CACHE_FULL,0,NULL)
 687
 688 void SSL_CTX_sess_set_new_cb(SSL_CTX *ctx,
 689                              int (*new_session_cb) (struct ssl_st *ssl,
 690                                                     SSL_SESSION *sess));
 691 int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx)) (struct ssl_st *ssl,
 692                                               SSL_SESSION *sess);
 693 void SSL_CTX_sess_set_remove_cb(SSL_CTX *ctx,
 694                                 void (*remove_session_cb) (struct ssl_ctx_st
 695                                                            *ctx,
 696                                                            SSL_SESSION
 697                                                            *sess));
 698 void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx)) (struct ssl_ctx_st *ctx,
 699                                                   SSL_SESSION *sess);
 700 void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx,
 701                              SSL_SESSION *(*get_session_cb) (struct ssl_st
 702                                                              *ssl,
 703                                                              const unsigned char
 704                                                              *data, int len,
 705                                                              int *copy));
 706 SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx)) (struct ssl_st *ssl,
 707                                                        const unsigned char *data,
 708                                                        int len, int *copy);
 709 void SSL_CTX_set_info_callback(SSL_CTX *ctx,
 710                                void (*cb) (const SSL *ssl, int type,
 711                                            int val));
 712 void (*SSL_CTX_get_info_callback(SSL_CTX *ctx)) (const SSL *ssl, int type,
 713                                                  int val);
 714 void SSL_CTX_set_client_cert_cb(SSL_CTX *ctx,
 715                                 int (*client_cert_cb) (SSL *ssl, X509 **x509,
 716                                                        EVP_PKEY **pkey));
 717 int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx)) (SSL *ssl, X509 **x509,
 718                                                  EVP_PKEY **pkey);
 719 # ifndef OPENSSL_NO_ENGINE
 720 __owur int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e);
 721 # endif
 722 void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx,
 723                                     int (*app_gen_cookie_cb) (SSL *ssl,
 724                                                               unsigned char
 725                                                               *cookie,
 726                                                               unsigned int
 727                                                               *cookie_len));
 728 void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
 729                                   int (*app_verify_cookie_cb) (SSL *ssl,
 730                                                                const unsigned char
 731                                                                *cookie,
 732                                                                unsigned int
 733                                                                cookie_len));
 734
 735 void SSL_CTX_set_stateless_cookie_generate_cb(
 736     SSL_CTX *ctx,
 737     int (*gen_stateless_cookie_cb) (SSL *ssl,
 738                                     unsigned char *cookie,
 739                                     size_t *cookie_len));
 740 void SSL_CTX_set_stateless_cookie_verify_cb(
 741     SSL_CTX *ctx,
 742     int (*verify_stateless_cookie_cb) (SSL *ssl,
 743                                        const unsigned char *cookie,
 744                                        size_t cookie_len));
 745 # ifndef OPENSSL_NO_NEXTPROTONEG
 746
 747 typedef int (*SSL_CTX_npn_advertised_cb_func)(SSL *ssl,
 748                                               const unsigned char **out,
 749                                               unsigned int *outlen,
 750                                               void *arg);
 751 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s,
 752                                    SSL_CTX_npn_advertised_cb_func cb,
 753                                    void *arg);
 754 #  define SSL_CTX_set_npn_advertised_cb SSL_CTX_set_next_protos_advertised_cb
 755
 756 typedef int (*SSL_CTX_npn_select_cb_func)(SSL *s,
 757                                           unsigned char **out,
 758                                           unsigned char *outlen,
 759                                           const unsigned char *in,
 760                                           unsigned int inlen,
 761                                           void *arg);
 762 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s,
 763                                       SSL_CTX_npn_select_cb_func cb,
 764                                       void *arg);
 765 #  define SSL_CTX_set_npn_select_cb SSL_CTX_set_next_proto_select_cb
 766
 767 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
 768                                     unsigned *len);
 769 #  define SSL_get0_npn_negotiated SSL_get0_next_proto_negotiated
 770 # endif
 771
 772 __owur int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
 773                           const unsigned char *in, unsigned int inlen,
 774                           const unsigned char *client,
 775                           unsigned int client_len);
 776
 777 # define OPENSSL_NPN_UNSUPPORTED 0
 778 # define OPENSSL_NPN_NEGOTIATED  1
 779 # define OPENSSL_NPN_NO_OVERLAP  2
 780
 781 __owur int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
 782                                    unsigned int protos_len);
 783 __owur int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
 784                                unsigned int protos_len);
 785 typedef int (*SSL_CTX_alpn_select_cb_func)(SSL *ssl,
 786                                            const unsigned char **out,
 787                                            unsigned char *outlen,
 788                                            const unsigned char *in,
 789                                            unsigned int inlen,
 790                                            void *arg);
 791 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
 792                                 SSL_CTX_alpn_select_cb_func cb,
 793                                 void *arg);
 794 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
 795                             unsigned int *len);
 796
 797 # ifndef OPENSSL_NO_PSK
 798 /*
 799  * the maximum length of the buffer given to callbacks containing the
 800  * resulting identity/psk
 801  */
 802 #  define PSK_MAX_IDENTITY_LEN 128
 803 #  define PSK_MAX_PSK_LEN 256
 804 typedef unsigned int (*SSL_psk_client_cb_func)(SSL *ssl,
 805                                                const char *hint,
 806                                                char *identity,
 807                                                unsigned int max_identity_len,
 808                                                unsigned char *psk,
 809                                                unsigned int max_psk_len);
 810 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb);
 811 void SSL_set_psk_client_callback(SSL *ssl, SSL_psk_client_cb_func cb);
 812
 813 typedef unsigned int (*SSL_psk_server_cb_func)(SSL *ssl,
 814                                                const char *identity,
 815                                                unsigned char *psk,
 816                                                unsigned int max_psk_len);
 817 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb);
 818 void SSL_set_psk_server_callback(SSL *ssl, SSL_psk_server_cb_func cb);
 819
 820 __owur int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint);
 821 __owur int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint);
 822 const char *SSL_get_psk_identity_hint(const SSL *s);
 823 const char *SSL_get_psk_identity(const SSL *s);
 824 # endif
 825
 826 typedef int (*SSL_psk_find_session_cb_func)(SSL *ssl,
 827                                             const unsigned char *identity,
 828                                             size_t identity_len,
 829                                             SSL_SESSION **sess);
 830 typedef int (*SSL_psk_use_session_cb_func)(SSL *ssl, const EVP_MD *md,
 831                                            const unsigned char **id,
 832                                            size_t *idlen,
 833                                            SSL_SESSION **sess);
 834
 835 void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb);
 836 void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx,
 837                                            SSL_psk_find_session_cb_func cb);
 838 void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb);
 839 void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx,
 840                                           SSL_psk_use_session_cb_func cb);
 841
 842 /* Register callbacks to handle custom TLS Extensions for client or server. */
 843
 844 __owur int SSL_CTX_has_client_custom_ext(const SSL_CTX *ctx,
 845                                          unsigned int ext_type);
 846
 847 __owur int SSL_CTX_add_client_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
 848                                   custom_ext_add_cb add_cb,
 849                                   custom_ext_free_cb free_cb,
 850                                   void *add_arg,
 851                                   custom_ext_parse_cb parse_cb,
 852                                   void *parse_arg);
 853
 854 __owur int SSL_CTX_add_server_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
 855                                   custom_ext_add_cb add_cb,
 856                                   custom_ext_free_cb free_cb,
 857                                   void *add_arg,
 858                                   custom_ext_parse_cb parse_cb,
 859                                   void *parse_arg);
 860
 861 __owur int SSL_CTX_add_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
 862                                   unsigned int context,
 863                                   SSL_custom_ext_add_cb_ex add_cb,
 864                                   SSL_custom_ext_free_cb_ex free_cb,
 865                                   void *add_arg,
 866                                   SSL_custom_ext_parse_cb_ex parse_cb,
 867                                   void *parse_arg);
 868
 869 __owur int SSL_extension_supported(unsigned int ext_type);
 870
 871 # define SSL_NOTHING            1
 872 # define SSL_WRITING            2
 873 # define SSL_READING            3
 874 # define SSL_X509_LOOKUP        4
 875 # define SSL_ASYNC_PAUSED       5
 876 # define SSL_ASYNC_NO_JOBS      6
 877 # define SSL_CLIENT_HELLO_CB    7
 878
 879 /* These will only be used when doing non-blocking IO */
 880 # define SSL_want_nothing(s)         (SSL_want(s) == SSL_NOTHING)
 881 # define SSL_want_read(s)            (SSL_want(s) == SSL_READING)
 882 # define SSL_want_write(s)           (SSL_want(s) == SSL_WRITING)
 883 # define SSL_want_x509_lookup(s)     (SSL_want(s) == SSL_X509_LOOKUP)
 884 # define SSL_want_async(s)           (SSL_want(s) == SSL_ASYNC_PAUSED)
 885 # define SSL_want_async_job(s)       (SSL_want(s) == SSL_ASYNC_NO_JOBS)
 886 # define SSL_want_client_hello_cb(s) (SSL_want(s) == SSL_CLIENT_HELLO_CB)
 887
 888 # define SSL_MAC_FLAG_READ_MAC_STREAM 1
 889 # define SSL_MAC_FLAG_WRITE_MAC_STREAM 2
 890
 891 /*
 892  * A callback for logging out TLS key material. This callback should log out
 893  * |line| followed by a newline.
 894  */
 895 typedef void (*SSL_CTX_keylog_cb_func)(const SSL *ssl, const char *line);
 896
 897 /*
 898  * SSL_CTX_set_keylog_callback configures a callback to log key material. This
 899  * is intended for debugging use with tools like Wireshark. The cb function
 900  * should log line followed by a newline.
 901  */
 902 void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb);
 903
 904 /*
 905  * SSL_CTX_get_keylog_callback returns the callback configured by
 906  * SSL_CTX_set_keylog_callback.
 907  */
 908 SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx);
 909
 910 int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data);
 911 uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx);
 912 int SSL_set_max_early_data(SSL *s, uint32_t max_early_data);
 913 uint32_t SSL_get_max_early_data(const SSL *s);
 914
 915 #ifdef __cplusplus
 916 }
 917 #endif
 918
 919 # include <openssl/ssl2.h>
 920 # include <openssl/ssl3.h>
 921 # include <openssl/tls1.h>      /* This is mostly sslv3 with a few tweaks */
 922 # include <openssl/dtls1.h>     /* Datagram TLS */
 923 # include <openssl/srtp.h>      /* Support for the use_srtp extension */
 924
 925 #ifdef  __cplusplus
 926 extern "C" {
 927 #endif
 928
 929 /*
 930  * These need to be after the above set of includes due to a compiler bug
 931  * in VisualStudio 2015
 932  */
 933 DEFINE_STACK_OF_CONST(SSL_CIPHER)
 934 DEFINE_STACK_OF(SSL_COMP)
 935
 936 /* compatibility */
 937 # define SSL_set_app_data(s,arg)         (SSL_set_ex_data(s,0,(char *)(arg)))
 938 # define SSL_get_app_data(s)             (SSL_get_ex_data(s,0))
 939 # define SSL_SESSION_set_app_data(s,a)   (SSL_SESSION_set_ex_data(s,0, \
 940                                                                   (char *)(a)))
 941 # define SSL_SESSION_get_app_data(s)     (SSL_SESSION_get_ex_data(s,0))
 942 # define SSL_CTX_get_app_data(ctx)       (SSL_CTX_get_ex_data(ctx,0))
 943 # define SSL_CTX_set_app_data(ctx,arg)   (SSL_CTX_set_ex_data(ctx,0, \
 944                                                               (char *)(arg)))
 945 DEPRECATEDIN_1_1_0(void SSL_set_debug(SSL *s, int debug))
 946
 947 /* TLSv1.3 KeyUpdate message types */
 948 /* -1 used so that this is an invalid value for the on-the-wire protocol */
 949 #define SSL_KEY_UPDATE_NONE             -1
 950 /* Values as defined for the on-the-wire protocol */
 951 #define SSL_KEY_UPDATE_NOT_REQUESTED     0
 952 #define SSL_KEY_UPDATE_REQUESTED         1
 953
 954 /*
 955  * The valid handshake states (one for each type message sent and one for each
 956  * type of message received). There are also two "special" states:
 957  * TLS = TLS or DTLS state
 958  * DTLS = DTLS specific state
 959  * CR/SR = Client Read/Server Read
 960  * CW/SW = Client Write/Server Write
 961  *
 962  * The "special" states are:
 963  * TLS_ST_BEFORE = No handshake has been initiated yet
 964  * TLS_ST_OK = A handshake has been successfully completed
 965  */
 966 typedef enum {
 967     TLS_ST_BEFORE,
 968     TLS_ST_OK,
 969     DTLS_ST_CR_HELLO_VERIFY_REQUEST,
 970     TLS_ST_CR_SRVR_HELLO,
 971     TLS_ST_CR_CERT,
 972     TLS_ST_CR_CERT_STATUS,
 973     TLS_ST_CR_KEY_EXCH,
 974     TLS_ST_CR_CERT_REQ,
 975     TLS_ST_CR_SRVR_DONE,
 976     TLS_ST_CR_SESSION_TICKET,
 977     TLS_ST_CR_CHANGE,
 978     TLS_ST_CR_FINISHED,
 979     TLS_ST_CW_CLNT_HELLO,
 980     TLS_ST_CW_CERT,
 981     TLS_ST_CW_KEY_EXCH,
 982     TLS_ST_CW_CERT_VRFY,
 983     TLS_ST_CW_CHANGE,
 984     TLS_ST_CW_NEXT_PROTO,
 985     TLS_ST_CW_FINISHED,
 986     TLS_ST_SW_HELLO_REQ,
 987     TLS_ST_SR_CLNT_HELLO,
 988     DTLS_ST_SW_HELLO_VERIFY_REQUEST,
 989     TLS_ST_SW_SRVR_HELLO,
 990     TLS_ST_SW_CERT,
 991     TLS_ST_SW_KEY_EXCH,
 992     TLS_ST_SW_CERT_REQ,
 993     TLS_ST_SW_SRVR_DONE,
 994     TLS_ST_SR_CERT,
 995     TLS_ST_SR_KEY_EXCH,
 996     TLS_ST_SR_CERT_VRFY,
 997     TLS_ST_SR_NEXT_PROTO,
 998     TLS_ST_SR_CHANGE,
 999     TLS_ST_SR_FINISHED,
1000     TLS_ST_SW_SESSION_TICKET,
1001     TLS_ST_SW_CERT_STATUS,
1002     TLS_ST_SW_CHANGE,
1003     TLS_ST_SW_FINISHED,
1004     TLS_ST_SW_ENCRYPTED_EXTENSIONS,
1005     TLS_ST_CR_ENCRYPTED_EXTENSIONS,
1006     TLS_ST_CR_CERT_VRFY,
1007     TLS_ST_SW_CERT_VRFY,
1008     TLS_ST_CR_HELLO_REQ,
1009     TLS_ST_SW_KEY_UPDATE,
1010     TLS_ST_CW_KEY_UPDATE,
1011     TLS_ST_SR_KEY_UPDATE,
1012     TLS_ST_CR_KEY_UPDATE,
1013     TLS_ST_EARLY_DATA,
1014     TLS_ST_PENDING_EARLY_DATA_END,
1015     TLS_ST_CW_END_OF_EARLY_DATA,
1016     TLS_ST_SR_END_OF_EARLY_DATA
1017 } OSSL_HANDSHAKE_STATE;
1018
1019 /*
1020  * Most of the following state values are no longer used and are defined to be
1021  * the closest equivalent value in the current state machine code. Not all
1022  * defines have an equivalent and are set to a dummy value (-1). SSL_ST_CONNECT
1023  * and SSL_ST_ACCEPT are still in use in the definition of SSL_CB_ACCEPT_LOOP,
1024  * SSL_CB_ACCEPT_EXIT, SSL_CB_CONNECT_LOOP and SSL_CB_CONNECT_EXIT.
1025  */
1026
1027 # define SSL_ST_CONNECT                  0x1000
1028 # define SSL_ST_ACCEPT                   0x2000
1029
1030 # define SSL_ST_MASK                     0x0FFF
1031
1032 # define SSL_CB_LOOP                     0x01
1033 # define SSL_CB_EXIT                     0x02
1034 # define SSL_CB_READ                     0x04
1035 # define SSL_CB_WRITE                    0x08
1036 # define SSL_CB_ALERT                    0x4000/* used in callback */
1037 # define SSL_CB_READ_ALERT               (SSL_CB_ALERT|SSL_CB_READ)
1038 # define SSL_CB_WRITE_ALERT              (SSL_CB_ALERT|SSL_CB_WRITE)
1039 # define SSL_CB_ACCEPT_LOOP              (SSL_ST_ACCEPT|SSL_CB_LOOP)
1040 # define SSL_CB_ACCEPT_EXIT              (SSL_ST_ACCEPT|SSL_CB_EXIT)
1041 # define SSL_CB_CONNECT_LOOP             (SSL_ST_CONNECT|SSL_CB_LOOP)
1042 # define SSL_CB_CONNECT_EXIT             (SSL_ST_CONNECT|SSL_CB_EXIT)
1043 # define SSL_CB_HANDSHAKE_START          0x10
1044 # define SSL_CB_HANDSHAKE_DONE           0x20
1045
1046 /* Is the SSL_connection established? */
1047 # define SSL_in_connect_init(a)          (SSL_in_init(a) && !SSL_is_server(a))
1048 # define SSL_in_accept_init(a)           (SSL_in_init(a) && SSL_is_server(a))
1049 int SSL_in_init(SSL *s);
1050 int SSL_in_before(SSL *s);
1051 int SSL_is_init_finished(SSL *s);
1052
1053 /*
1054  * The following 3 states are kept in ssl->rlayer.rstate when reads fail, you
1055  * should not need these
1056  */
1057 # define SSL_ST_READ_HEADER                      0xF0
1058 # define SSL_ST_READ_BODY                        0xF1
1059 # define SSL_ST_READ_DONE                        0xF2
1060
1061 /*-
1062  * Obtain latest Finished message
1063  *   -- that we sent (SSL_get_finished)
1064  *   -- that we expected from peer (SSL_get_peer_finished).
1065  * Returns length (0 == no Finished so far), copies up to 'count' bytes.
1066  */
1067 size_t SSL_get_finished(const SSL *s, void *buf, size_t count);
1068 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count);
1069
1070 /*
1071  * use either SSL_VERIFY_NONE or SSL_VERIFY_PEER, the last 3 options are
1072  * 'ored' with SSL_VERIFY_PEER if they are desired
1073  */
1074 # define SSL_VERIFY_NONE                 0x00
1075 # define SSL_VERIFY_PEER                 0x01
1076 # define SSL_VERIFY_FAIL_IF_NO_PEER_CERT 0x02
1077 # define SSL_VERIFY_CLIENT_ONCE          0x04
1078 # define SSL_VERIFY_POST_HANDSHAKE       0x08
1079
1080 # define OpenSSL_add_ssl_algorithms()    SSL_library_init()
1081 # if OPENSSL_API_COMPAT < 0x10100000L
1082 #  define SSLeay_add_ssl_algorithms()    SSL_library_init()
1083 # endif
1084
1085 /* More backward compatibility */
1086 # define SSL_get_cipher(s) \
1087                 SSL_CIPHER_get_name(SSL_get_current_cipher(s))
1088 # define SSL_get_cipher_bits(s,np) \
1089                 SSL_CIPHER_get_bits(SSL_get_current_cipher(s),np)
1090 # define SSL_get_cipher_version(s) \
1091                 SSL_CIPHER_get_version(SSL_get_current_cipher(s))
1092 # define SSL_get_cipher_name(s) \
1093                 SSL_CIPHER_get_name(SSL_get_current_cipher(s))
1094 # define SSL_get_time(a)         SSL_SESSION_get_time(a)
1095 # define SSL_set_time(a,b)       SSL_SESSION_set_time((a),(b))
1096 # define SSL_get_timeout(a)      SSL_SESSION_get_timeout(a)
1097 # define SSL_set_timeout(a,b)    SSL_SESSION_set_timeout((a),(b))
1098
1099 # define d2i_SSL_SESSION_bio(bp,s_id) ASN1_d2i_bio_of(SSL_SESSION,SSL_SESSION_new,d2i_SSL_SESSION,bp,s_id)
1100 # define i2d_SSL_SESSION_bio(bp,s_id) ASN1_i2d_bio_of(SSL_SESSION,i2d_SSL_SESSION,bp,s_id)
1101
1102 DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
1103 # define SSL_AD_REASON_OFFSET            1000/* offset to get SSL_R_... value
1104                                               * from SSL_AD_... */
1105 /* These alert types are for SSLv3 and TLSv1 */
1106 # define SSL_AD_CLOSE_NOTIFY             SSL3_AD_CLOSE_NOTIFY
1107 /* fatal */
1108 # define SSL_AD_UNEXPECTED_MESSAGE       SSL3_AD_UNEXPECTED_MESSAGE
1109 /* fatal */
1110 # define SSL_AD_BAD_RECORD_MAC           SSL3_AD_BAD_RECORD_MAC
1111 # define SSL_AD_DECRYPTION_FAILED        TLS1_AD_DECRYPTION_FAILED
1112 # define SSL_AD_RECORD_OVERFLOW          TLS1_AD_RECORD_OVERFLOW
1113 /* fatal */
1114 # define SSL_AD_DECOMPRESSION_FAILURE    SSL3_AD_DECOMPRESSION_FAILURE
1115 /* fatal */
1116 # define SSL_AD_HANDSHAKE_FAILURE        SSL3_AD_HANDSHAKE_FAILURE
1117 /* Not for TLS */
1118 # define SSL_AD_NO_CERTIFICATE           SSL3_AD_NO_CERTIFICATE
1119 # define SSL_AD_BAD_CERTIFICATE          SSL3_AD_BAD_CERTIFICATE
1120 # define SSL_AD_UNSUPPORTED_CERTIFICATE  SSL3_AD_UNSUPPORTED_CERTIFICATE
1121 # define SSL_AD_CERTIFICATE_REVOKED      SSL3_AD_CERTIFICATE_REVOKED
1122 # define SSL_AD_CERTIFICATE_EXPIRED      SSL3_AD_CERTIFICATE_EXPIRED
1123 # define SSL_AD_CERTIFICATE_UNKNOWN      SSL3_AD_CERTIFICATE_UNKNOWN
1124 /* fatal */
1125 # define SSL_AD_ILLEGAL_PARAMETER        SSL3_AD_ILLEGAL_PARAMETER
1126 /* fatal */
1127 # define SSL_AD_UNKNOWN_CA               TLS1_AD_UNKNOWN_CA
1128 /* fatal */
1129 # define SSL_AD_ACCESS_DENIED            TLS1_AD_ACCESS_DENIED
1130 /* fatal */
1131 # define SSL_AD_DECODE_ERROR             TLS1_AD_DECODE_ERROR
1132 # define SSL_AD_DECRYPT_ERROR            TLS1_AD_DECRYPT_ERROR
1133 /* fatal */
1134 # define SSL_AD_EXPORT_RESTRICTION       TLS1_AD_EXPORT_RESTRICTION
1135 /* fatal */
1136 # define SSL_AD_PROTOCOL_VERSION         TLS1_AD_PROTOCOL_VERSION
1137 /* fatal */
1138 # define SSL_AD_INSUFFICIENT_SECURITY    TLS1_AD_INSUFFICIENT_SECURITY
1139 /* fatal */
1140 # define SSL_AD_INTERNAL_ERROR           TLS1_AD_INTERNAL_ERROR
1141 # define SSL_AD_USER_CANCELLED           TLS1_AD_USER_CANCELLED
1142 # define SSL_AD_NO_RENEGOTIATION         TLS1_AD_NO_RENEGOTIATION
1143 # define SSL_AD_MISSING_EXTENSION        TLS13_AD_MISSING_EXTENSION
1144 # define SSL_AD_CERTIFICATE_REQUIRED     TLS13_AD_CERTIFICATE_REQUIRED
1145 # define SSL_AD_UNSUPPORTED_EXTENSION    TLS1_AD_UNSUPPORTED_EXTENSION
1146 # define SSL_AD_CERTIFICATE_UNOBTAINABLE TLS1_AD_CERTIFICATE_UNOBTAINABLE
1147 # define SSL_AD_UNRECOGNIZED_NAME        TLS1_AD_UNRECOGNIZED_NAME
1148 # define SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
1149 # define SSL_AD_BAD_CERTIFICATE_HASH_VALUE TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
1150 /* fatal */
1151 # define SSL_AD_UNKNOWN_PSK_IDENTITY     TLS1_AD_UNKNOWN_PSK_IDENTITY
1152 /* fatal */
1153 # define SSL_AD_INAPPROPRIATE_FALLBACK   TLS1_AD_INAPPROPRIATE_FALLBACK
1154 # define SSL_AD_NO_APPLICATION_PROTOCOL  TLS1_AD_NO_APPLICATION_PROTOCOL
1155 # define SSL_ERROR_NONE                  0
1156 # define SSL_ERROR_SSL                   1
1157 # define SSL_ERROR_WANT_READ             2
1158 # define SSL_ERROR_WANT_WRITE            3
1159 # define SSL_ERROR_WANT_X509_LOOKUP      4
1160 # define SSL_ERROR_SYSCALL               5/* look at error stack/return
1161                                            * value/errno */
1162 # define SSL_ERROR_ZERO_RETURN           6
1163 # define SSL_ERROR_WANT_CONNECT          7
1164 # define SSL_ERROR_WANT_ACCEPT           8
1165 # define SSL_ERROR_WANT_ASYNC            9
1166 # define SSL_ERROR_WANT_ASYNC_JOB       10
1167 # define SSL_ERROR_WANT_CLIENT_HELLO_CB 11
1168 # define SSL_CTRL_SET_TMP_DH                     3
1169 # define SSL_CTRL_SET_TMP_ECDH                   4
1170 # define SSL_CTRL_SET_TMP_DH_CB                  6
1171 # define SSL_CTRL_GET_CLIENT_CERT_REQUEST        9
1172 # define SSL_CTRL_GET_NUM_RENEGOTIATIONS         10
1173 # define SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS       11
1174 # define SSL_CTRL_GET_TOTAL_RENEGOTIATIONS       12
1175 # define SSL_CTRL_GET_FLAGS                      13
1176 # define SSL_CTRL_EXTRA_CHAIN_CERT               14
1177 # define SSL_CTRL_SET_MSG_CALLBACK               15
1178 # define SSL_CTRL_SET_MSG_CALLBACK_ARG           16
1179 /* only applies to datagram connections */
1180 # define SSL_CTRL_SET_MTU                17
1181 /* Stats */
1182 # define SSL_CTRL_SESS_NUMBER                    20
1183 # define SSL_CTRL_SESS_CONNECT                   21
1184 # define SSL_CTRL_SESS_CONNECT_GOOD              22
1185 # define SSL_CTRL_SESS_CONNECT_RENEGOTIATE       23
1186 # define SSL_CTRL_SESS_ACCEPT                    24
1187 # define SSL_CTRL_SESS_ACCEPT_GOOD               25
1188 # define SSL_CTRL_SESS_ACCEPT_RENEGOTIATE        26
1189 # define SSL_CTRL_SESS_HIT                       27
1190 # define SSL_CTRL_SESS_CB_HIT                    28
1191 # define SSL_CTRL_SESS_MISSES                    29
1192 # define SSL_CTRL_SESS_TIMEOUTS                  30
1193 # define SSL_CTRL_SESS_CACHE_FULL                31
1194 # define SSL_CTRL_MODE                           33
1195 # define SSL_CTRL_GET_READ_AHEAD                 40
1196 # define SSL_CTRL_SET_READ_AHEAD                 41
1197 # define SSL_CTRL_SET_SESS_CACHE_SIZE            42
1198 # define SSL_CTRL_GET_SESS_CACHE_SIZE            43
1199 # define SSL_CTRL_SET_SESS_CACHE_MODE            44
1200 # define SSL_CTRL_GET_SESS_CACHE_MODE            45
1201 # define SSL_CTRL_GET_MAX_CERT_LIST              50
1202 # define SSL_CTRL_SET_MAX_CERT_LIST              51
1203 # define SSL_CTRL_SET_MAX_SEND_FRAGMENT          52
1204 /* see tls1.h for macros based on these */
1205 # define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB       53
1206 # define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG      54
1207 # define SSL_CTRL_SET_TLSEXT_HOSTNAME            55
1208 # define SSL_CTRL_SET_TLSEXT_DEBUG_CB            56
1209 # define SSL_CTRL_SET_TLSEXT_DEBUG_ARG           57
1210 # define SSL_CTRL_GET_TLSEXT_TICKET_KEYS         58
1211 # define SSL_CTRL_SET_TLSEXT_TICKET_KEYS         59
1212 /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT    60 */
1213 /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB 61 */
1214 /*# define SSL_CTRL_SET_TLSEXT_OPAQUE_PRF_INPUT_CB_ARG 62 */
1215 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB       63
1216 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG   64
1217 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE     65
1218 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_EXTS     66
1219 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_EXTS     67
1220 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_IDS      68
1221 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_IDS      69
1222 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP        70
1223 # define SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP        71
1224 # define SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB       72
1225 # define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB    75
1226 # define SSL_CTRL_SET_SRP_VERIFY_PARAM_CB                76
1227 # define SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB             77
1228 # define SSL_CTRL_SET_SRP_ARG            78
1229 # define SSL_CTRL_SET_TLS_EXT_SRP_USERNAME               79
1230 # define SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH               80
1231 # define SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD               81
1232 # ifndef OPENSSL_NO_HEARTBEATS
1233 #  define SSL_CTRL_DTLS_EXT_SEND_HEARTBEAT               85
1234 #  define SSL_CTRL_GET_DTLS_EXT_HEARTBEAT_PENDING        86
1235 #  define SSL_CTRL_SET_DTLS_EXT_HEARTBEAT_NO_REQUESTS    87
1236 # endif
1237 # define DTLS_CTRL_GET_TIMEOUT           73
1238 # define DTLS_CTRL_HANDLE_TIMEOUT        74
1239 # define SSL_CTRL_GET_RI_SUPPORT                 76
1240 # define SSL_CTRL_CLEAR_MODE                     78
1241 # define SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB      79
1242 # define SSL_CTRL_GET_EXTRA_CHAIN_CERTS          82
1243 # define SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS        83
1244 # define SSL_CTRL_CHAIN                          88
1245 # define SSL_CTRL_CHAIN_CERT                     89
1246 # define SSL_CTRL_GET_GROUPS                     90
1247 # define SSL_CTRL_SET_GROUPS                     91
1248 # define SSL_CTRL_SET_GROUPS_LIST                92
1249 # define SSL_CTRL_GET_SHARED_GROUP               93
1250 # define SSL_CTRL_SET_SIGALGS                    97
1251 # define SSL_CTRL_SET_SIGALGS_LIST               98
1252 # define SSL_CTRL_CERT_FLAGS                     99
1253 # define SSL_CTRL_CLEAR_CERT_FLAGS               100
1254 # define SSL_CTRL_SET_CLIENT_SIGALGS             101
1255 # define SSL_CTRL_SET_CLIENT_SIGALGS_LIST        102
1256 # define SSL_CTRL_GET_CLIENT_CERT_TYPES          103
1257 # define SSL_CTRL_SET_CLIENT_CERT_TYPES          104
1258 # define SSL_CTRL_BUILD_CERT_CHAIN               105
1259 # define SSL_CTRL_SET_VERIFY_CERT_STORE          106
1260 # define SSL_CTRL_SET_CHAIN_CERT_STORE           107
1261 # define SSL_CTRL_GET_PEER_SIGNATURE_NID         108
1262 # define SSL_CTRL_GET_SERVER_TMP_KEY             109
1263 # define SSL_CTRL_GET_RAW_CIPHERLIST             110
1264 # define SSL_CTRL_GET_EC_POINT_FORMATS           111
1265 # define SSL_CTRL_GET_CHAIN_CERTS                115
1266 # define SSL_CTRL_SELECT_CURRENT_CERT            116
1267 # define SSL_CTRL_SET_CURRENT_CERT               117
1268 # define SSL_CTRL_SET_DH_AUTO                    118
1269 # define DTLS_CTRL_SET_LINK_MTU                  120
1270 # define DTLS_CTRL_GET_LINK_MIN_MTU              121
1271 # define SSL_CTRL_GET_EXTMS_SUPPORT              122
1272 # define SSL_CTRL_SET_MIN_PROTO_VERSION          123
1273 # define SSL_CTRL_SET_MAX_PROTO_VERSION          124
1274 # define SSL_CTRL_SET_SPLIT_SEND_FRAGMENT        125
1275 # define SSL_CTRL_SET_MAX_PIPELINES              126
1276 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_TYPE     127
1277 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB       128
1278 # define SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB_ARG   129
1279 # define SSL_CTRL_GET_MIN_PROTO_VERSION          130
1280 # define SSL_CTRL_GET_MAX_PROTO_VERSION          131
1281 # define SSL_CERT_SET_FIRST                      1
1282 # define SSL_CERT_SET_NEXT                       2
1283 # define SSL_CERT_SET_SERVER                     3
1284 # define DTLSv1_get_timeout(ssl, arg) \
1285         SSL_ctrl(ssl,DTLS_CTRL_GET_TIMEOUT,0, (void *)(arg))
1286 # define DTLSv1_handle_timeout(ssl) \
1287         SSL_ctrl(ssl,DTLS_CTRL_HANDLE_TIMEOUT,0, NULL)
1288 # define SSL_num_renegotiations(ssl) \
1289         SSL_ctrl((ssl),SSL_CTRL_GET_NUM_RENEGOTIATIONS,0,NULL)
1290 # define SSL_clear_num_renegotiations(ssl) \
1291         SSL_ctrl((ssl),SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS,0,NULL)
1292 # define SSL_total_renegotiations(ssl) \
1293         SSL_ctrl((ssl),SSL_CTRL_GET_TOTAL_RENEGOTIATIONS,0,NULL)
1294 # define SSL_CTX_set_tmp_dh(ctx,dh) \
1295         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
1296 # define SSL_CTX_set_tmp_ecdh(ctx,ecdh) \
1297         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH,0,(char *)(ecdh))
1298 # define SSL_CTX_set_dh_auto(ctx, onoff) \
1299         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
1300 # define SSL_set_dh_auto(s, onoff) \
1301         SSL_ctrl(s,SSL_CTRL_SET_DH_AUTO,onoff,NULL)
1302 # define SSL_set_tmp_dh(ssl,dh) \
1303         SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH,0,(char *)(dh))
1304 # define SSL_set_tmp_ecdh(ssl,ecdh) \
1305         SSL_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH,0,(char *)(ecdh))
1306 # define SSL_CTX_add_extra_chain_cert(ctx,x509) \
1307         SSL_CTX_ctrl(ctx,SSL_CTRL_EXTRA_CHAIN_CERT,0,(char *)(x509))
1308 # define SSL_CTX_get_extra_chain_certs(ctx,px509) \
1309         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_EXTRA_CHAIN_CERTS,0,px509)
1310 # define SSL_CTX_get_extra_chain_certs_only(ctx,px509) \
1311         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_EXTRA_CHAIN_CERTS,1,px509)
1312 # define SSL_CTX_clear_extra_chain_certs(ctx) \
1313         SSL_CTX_ctrl(ctx,SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS,0,NULL)
1314 # define SSL_CTX_set0_chain(ctx,sk) \
1315         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,0,(char *)(sk))
1316 # define SSL_CTX_set1_chain(ctx,sk) \
1317         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN,1,(char *)(sk))
1318 # define SSL_CTX_add0_chain_cert(ctx,x509) \
1319         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,0,(char *)(x509))
1320 # define SSL_CTX_add1_chain_cert(ctx,x509) \
1321         SSL_CTX_ctrl(ctx,SSL_CTRL_CHAIN_CERT,1,(char *)(x509))
1322 # define SSL_CTX_get0_chain_certs(ctx,px509) \
1323         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
1324 # define SSL_CTX_clear_chain_certs(ctx) \
1325         SSL_CTX_set0_chain(ctx,NULL)
1326 # define SSL_CTX_build_cert_chain(ctx, flags) \
1327         SSL_CTX_ctrl(ctx,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
1328 # define SSL_CTX_select_current_cert(ctx,x509) \
1329         SSL_CTX_ctrl(ctx,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)(x509))
1330 # define SSL_CTX_set_current_cert(ctx, op) \
1331         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
1332 # define SSL_CTX_set0_verify_cert_store(ctx,st) \
1333         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)(st))
1334 # define SSL_CTX_set1_verify_cert_store(ctx,st) \
1335         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)(st))
1336 # define SSL_CTX_set0_chain_cert_store(ctx,st) \
1337         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)(st))
1338 # define SSL_CTX_set1_chain_cert_store(ctx,st) \
1339         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)(st))
1340 # define SSL_set0_chain(ctx,sk) \
1341         SSL_ctrl(ctx,SSL_CTRL_CHAIN,0,(char *)(sk))
1342 # define SSL_set1_chain(ctx,sk) \
1343         SSL_ctrl(ctx,SSL_CTRL_CHAIN,1,(char *)(sk))
1344 # define SSL_add0_chain_cert(ctx,x509) \
1345         SSL_ctrl(ctx,SSL_CTRL_CHAIN_CERT,0,(char *)(x509))
1346 # define SSL_add1_chain_cert(ctx,x509) \
1347         SSL_ctrl(ctx,SSL_CTRL_CHAIN_CERT,1,(char *)(x509))
1348 # define SSL_get0_chain_certs(ctx,px509) \
1349         SSL_ctrl(ctx,SSL_CTRL_GET_CHAIN_CERTS,0,px509)
1350 # define SSL_clear_chain_certs(ctx) \
1351         SSL_set0_chain(ctx,NULL)
1352 # define SSL_build_cert_chain(s, flags) \
1353         SSL_ctrl(s,SSL_CTRL_BUILD_CERT_CHAIN, flags, NULL)
1354 # define SSL_select_current_cert(ctx,x509) \
1355         SSL_ctrl(ctx,SSL_CTRL_SELECT_CURRENT_CERT,0,(char *)(x509))
1356 # define SSL_set_current_cert(ctx,op) \
1357         SSL_ctrl(ctx,SSL_CTRL_SET_CURRENT_CERT, op, NULL)
1358 # define SSL_set0_verify_cert_store(s,st) \
1359         SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,0,(char *)(st))
1360 # define SSL_set1_verify_cert_store(s,st) \
1361         SSL_ctrl(s,SSL_CTRL_SET_VERIFY_CERT_STORE,1,(char *)(st))
1362 # define SSL_set0_chain_cert_store(s,st) \
1363         SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,0,(char *)(st))
1364 # define SSL_set1_chain_cert_store(s,st) \
1365         SSL_ctrl(s,SSL_CTRL_SET_CHAIN_CERT_STORE,1,(char *)(st))
1366 # define SSL_get1_groups(ctx, s) \
1367         SSL_ctrl(ctx,SSL_CTRL_GET_GROUPS,0,(char *)(s))
1368 # define SSL_get1_curves(ctx, s) \
1369         SSL_get1_groups((ctx), (s))
1370 # define SSL_CTX_set1_groups(ctx, glist, glistlen) \
1371         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_GROUPS,glistlen,(char *)(glist))
1372 # define SSL_CTX_set1_groups_list(ctx, s) \
1373         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_GROUPS_LIST,0,(char *)(s))
1374 # define SSL_CTX_set1_curves(ctx, clist, clistlen) \
1375         SSL_CTX_set1_groups((ctx), (clist), (clistlen))
1376 # define SSL_CTX_set1_curves_list(ctx, s) \
1377         SSL_CTX_set1_groups_list((ctx), (s))
1378 # define SSL_set1_groups(ctx, glist, glistlen) \
1379         SSL_ctrl(ctx,SSL_CTRL_SET_GROUPS,glistlen,(char *)(glist))
1380 # define SSL_set1_groups_list(ctx, s) \
1381         SSL_ctrl(ctx,SSL_CTRL_SET_GROUPS_LIST,0,(char *)(s))
1382 # define SSL_set1_curves(ctx, clist, clistlen) \
1383         SSL_set1_groups((ctx), (clist), (clistlen))
1384 # define SSL_set1_curves_list(ctx, s) \
1385         SSL_set1_groups_list((ctx), (s))
1386 # define SSL_get_shared_group(s, n) \
1387         SSL_ctrl(s,SSL_CTRL_GET_SHARED_GROUP,n,NULL)
1388 # define SSL_get_shared_curve(s, n) \
1389         SSL_get_shared_group((s), (n))
1390 # define SSL_CTX_set1_sigalgs(ctx, slist, slistlen) \
1391         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS,slistlen,(int *)(slist))
1392 # define SSL_CTX_set1_sigalgs_list(ctx, s) \
1393         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)(s))
1394 # define SSL_set1_sigalgs(ctx, slist, slistlen) \
1395         SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS,slistlen,(int *)(slist))
1396 # define SSL_set1_sigalgs_list(ctx, s) \
1397         SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)(s))
1398 # define SSL_CTX_set1_client_sigalgs(ctx, slist, slistlen) \
1399         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS,slistlen,(int *)(slist))
1400 # define SSL_CTX_set1_client_sigalgs_list(ctx, s) \
1401         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)(s))
1402 # define SSL_set1_client_sigalgs(ctx, slist, slistlen) \
1403         SSL_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS,clistlen,(int *)(slist))
1404 # define SSL_set1_client_sigalgs_list(ctx, s) \
1405         SSL_ctrl(ctx,SSL_CTRL_SET_CLIENT_SIGALGS_LIST,0,(char *)(s))
1406 # define SSL_get0_certificate_types(s, clist) \
1407         SSL_ctrl(s, SSL_CTRL_GET_CLIENT_CERT_TYPES, 0, (char *)(clist))
1408 # define SSL_CTX_set1_client_certificate_types(ctx, clist, clistlen) \
1409         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen, \
1410                      (char *)(clist))
1411 # define SSL_set1_client_certificate_types(s, clist, clistlen) \
1412         SSL_ctrl(s,SSL_CTRL_SET_CLIENT_CERT_TYPES,clistlen,(char *)(clist))
1413 # define SSL_get_peer_signature_nid(s, pn) \
1414         SSL_ctrl(s,SSL_CTRL_GET_PEER_SIGNATURE_NID,0,pn)
1415 # define SSL_get_server_tmp_key(s, pk) \
1416         SSL_ctrl(s,SSL_CTRL_GET_SERVER_TMP_KEY,0,pk)
1417 # define SSL_get0_raw_cipherlist(s, plst) \
1418         SSL_ctrl(s,SSL_CTRL_GET_RAW_CIPHERLIST,0,plst)
1419 # define SSL_get0_ec_point_formats(s, plst) \
1420         SSL_ctrl(s,SSL_CTRL_GET_EC_POINT_FORMATS,0,plst)
1421 #define SSL_CTX_set_min_proto_version(ctx, version) \
1422         SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
1423 #define SSL_CTX_set_max_proto_version(ctx, version) \
1424         SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
1425 #define SSL_CTX_get_min_proto_version(ctx) \
1426         SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, NULL)
1427 #define SSL_CTX_get_max_proto_version(ctx) \
1428         SSL_CTX_ctrl(ctx, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, NULL)
1429 #define SSL_set_min_proto_version(s, version) \
1430         SSL_ctrl(s, SSL_CTRL_SET_MIN_PROTO_VERSION, version, NULL)
1431 #define SSL_set_max_proto_version(s, version) \
1432         SSL_ctrl(s, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
1433 #define SSL_get_min_proto_version(s) \
1434         SSL_ctrl(s, SSL_CTRL_GET_MIN_PROTO_VERSION, 0, NULL)
1435 #define SSL_get_max_proto_version(s) \
1436         SSL_ctrl(s, SSL_CTRL_GET_MAX_PROTO_VERSION, 0, NULL)
1437
1438 #if OPENSSL_API_COMPAT < 0x10100000L
1439 /* Provide some compatibility macros for removed functionality. */
1440 # define SSL_CTX_need_tmp_RSA(ctx)                0
1441 # define SSL_CTX_set_tmp_rsa(ctx,rsa)             1
1442 # define SSL_need_tmp_RSA(ssl)                    0
1443 # define SSL_set_tmp_rsa(ssl,rsa)                 1
1444 # define SSL_CTX_set_ecdh_auto(dummy, onoff)      ((onoff) != 0)
1445 # define SSL_set_ecdh_auto(dummy, onoff)          ((onoff) != 0)
1446 /*
1447  * We "pretend" to call the callback to avoid warnings about unused static
1448  * functions.
1449  */
1450 # define SSL_CTX_set_tmp_rsa_callback(ctx, cb)    while(0) (cb)(NULL, 0, 0)
1451 # define SSL_set_tmp_rsa_callback(ssl, cb)        while(0) (cb)(NULL, 0, 0)
1452 #endif
1453
1454 __owur const BIO_METHOD *BIO_f_ssl(void);
1455 __owur BIO *BIO_new_ssl(SSL_CTX *ctx, int client);
1456 __owur BIO *BIO_new_ssl_connect(SSL_CTX *ctx);
1457 __owur BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx);
1458 __owur int BIO_ssl_copy_session_id(BIO *to, BIO *from);
1459 void BIO_ssl_shutdown(BIO *ssl_bio);
1460
1461 __owur int SSL_CTX_set_cipher_list(SSL_CTX *, const char *str);
1462 __owur SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth);
1463 int SSL_CTX_up_ref(SSL_CTX *ctx);
1464 void SSL_CTX_free(SSL_CTX *);
1465 __owur long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
1466 __owur long SSL_CTX_get_timeout(const SSL_CTX *ctx);
1467 __owur X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *);
1468 void SSL_CTX_set_cert_store(SSL_CTX *, X509_STORE *);
1469 void SSL_CTX_set1_cert_store(SSL_CTX *, X509_STORE *);
1470 __owur int SSL_want(const SSL *s);
1471 __owur int SSL_clear(SSL *s);
1472
1473 void SSL_CTX_flush_sessions(SSL_CTX *ctx, long tm);
1474
1475 __owur const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
1476 __owur const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s);
1477 __owur int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits);
1478 __owur const char *SSL_CIPHER_get_version(const SSL_CIPHER *c);
1479 __owur const char *SSL_CIPHER_get_name(const SSL_CIPHER *c);
1480 __owur const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c);
1481 __owur const char *OPENSSL_cipher_name(const char *rfc_name);
1482 __owur uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c);
1483 __owur uint16_t SSL_CIPHER_get_protocol_id(const SSL_CIPHER *c);
1484 __owur int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c);
1485 __owur int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c);
1486 __owur const EVP_MD *SSL_CIPHER_get_handshake_digest(const SSL_CIPHER *c);
1487 __owur int SSL_CIPHER_is_aead(const SSL_CIPHER *c);
1488
1489 __owur int SSL_get_fd(const SSL *s);
1490 __owur int SSL_get_rfd(const SSL *s);
1491 __owur int SSL_get_wfd(const SSL *s);
1492 __owur const char *SSL_get_cipher_list(const SSL *s, int n);
1493 __owur char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len);
1494 __owur int SSL_get_read_ahead(const SSL *s);
1495 __owur int SSL_pending(const SSL *s);
1496 __owur int SSL_has_pending(const SSL *s);
1497 # ifndef OPENSSL_NO_SOCK
1498 __owur int SSL_set_fd(SSL *s, int fd);
1499 __owur int SSL_set_rfd(SSL *s, int fd);
1500 __owur int SSL_set_wfd(SSL *s, int fd);
1501 # endif
1502 void SSL_set0_rbio(SSL *s, BIO *rbio);
1503 void SSL_set0_wbio(SSL *s, BIO *wbio);
1504 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio);
1505 __owur BIO *SSL_get_rbio(const SSL *s);
1506 __owur BIO *SSL_get_wbio(const SSL *s);
1507 __owur int SSL_set_cipher_list(SSL *s, const char *str);
1508 __owur int SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str);
1509 __owur int SSL_set_ciphersuites(SSL *s, const char *str);
1510 void SSL_set_read_ahead(SSL *s, int yes);
1511 __owur int SSL_get_verify_mode(const SSL *s);
1512 __owur int SSL_get_verify_depth(const SSL *s);
1513 __owur SSL_verify_cb SSL_get_verify_callback(const SSL *s);
1514 void SSL_set_verify(SSL *s, int mode, SSL_verify_cb callback);
1515 void SSL_set_verify_depth(SSL *s, int depth);
1516 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg);
1517 # ifndef OPENSSL_NO_RSA
1518 __owur int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa);
1519 __owur int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const unsigned char *d, long len);
1520 # endif
1521 __owur int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey);
1522 __owur int SSL_use_PrivateKey_ASN1(int pk, SSL *ssl, const unsigned char *d,
1523                             long len);
1524 __owur int SSL_use_certificate(SSL *ssl, X509 *x);
1525 __owur int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len);
1526 __owur int SSL_use_cert_and_key(SSL *ssl, X509 *x509, EVP_PKEY *privatekey,
1527                                 STACK_OF(X509) *chain, int override);
1528
1529
1530 /* serverinfo file format versions */
1531 # define SSL_SERVERINFOV1   1
1532 # define SSL_SERVERINFOV2   2
1533
1534 /* Set serverinfo data for the current active cert. */
1535 __owur int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
1536                            size_t serverinfo_length);
1537 __owur int SSL_CTX_use_serverinfo_ex(SSL_CTX *ctx, unsigned int version,
1538                                      const unsigned char *serverinfo,
1539                                      size_t serverinfo_length);
1540 __owur int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file);
1541
1542 #ifndef OPENSSL_NO_RSA
1543 __owur int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type);
1544 #endif
1545
1546 __owur int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type);
1547 __owur int SSL_use_certificate_file(SSL *ssl, const char *file, int type);
1548
1549 #ifndef OPENSSL_NO_RSA
1550 __owur int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type);
1551 #endif
1552 __owur int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type);
1553 __owur int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type);
1554 /* PEM type */
1555 __owur int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file);
1556 __owur int SSL_use_certificate_chain_file(SSL *ssl, const char *file);
1557 __owur STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
1558 __owur int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
1559                                         const char *file);
1560 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stackCAs,
1561                                        const char *dir);
1562
1563 #if OPENSSL_API_COMPAT < 0x10100000L
1564 # define SSL_load_error_strings() \
1565     OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS \
1566                      | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL)
1567 #endif
1568
1569 __owur const char *SSL_state_string(const SSL *s);
1570 __owur const char *SSL_rstate_string(const SSL *s);
1571 __owur const char *SSL_state_string_long(const SSL *s);
1572 __owur const char *SSL_rstate_string_long(const SSL *s);
1573 __owur long SSL_SESSION_get_time(const SSL_SESSION *s);
1574 __owur long SSL_SESSION_set_time(SSL_SESSION *s, long t);
1575 __owur long SSL_SESSION_get_timeout(const SSL_SESSION *s);
1576 __owur long SSL_SESSION_set_timeout(SSL_SESSION *s, long t);
1577 __owur int SSL_SESSION_get_protocol_version(const SSL_SESSION *s);
1578 __owur int SSL_SESSION_set_protocol_version(SSL_SESSION *s, int version);
1579
1580 __owur const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s);
1581 __owur int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname);
1582 void SSL_SESSION_get0_alpn_selected(const SSL_SESSION *s,
1583                                     const unsigned char **alpn,
1584                                     size_t *len);
1585 __owur int SSL_SESSION_set1_alpn_selected(SSL_SESSION *s,
1586                                           const unsigned char *alpn,
1587                                           size_t len);
1588 __owur const SSL_CIPHER *SSL_SESSION_get0_cipher(const SSL_SESSION *s);
1589 __owur int SSL_SESSION_set_cipher(SSL_SESSION *s, const SSL_CIPHER *cipher);
1590 __owur int SSL_SESSION_has_ticket(const SSL_SESSION *s);
1591 __owur unsigned long SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s);
1592 void SSL_SESSION_get0_ticket(const SSL_SESSION *s, const unsigned char **tick,
1593                             size_t *len);
1594 __owur uint32_t SSL_SESSION_get_max_early_data(const SSL_SESSION *s);
1595 __owur int SSL_SESSION_set_max_early_data(SSL_SESSION *s,
1596                                           uint32_t max_early_data);
1597 __owur int SSL_copy_session_id(SSL *to, const SSL *from);
1598 __owur X509 *SSL_SESSION_get0_peer(SSL_SESSION *s);
1599 __owur int SSL_SESSION_set1_id_context(SSL_SESSION *s, const unsigned char *sid_ctx,
1600                                 unsigned int sid_ctx_len);
1601 __owur int SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid,
1602                                unsigned int sid_len);
1603 __owur int SSL_SESSION_is_resumable(const SSL_SESSION *s);
1604
1605 __owur SSL_SESSION *SSL_SESSION_new(void);
1606 __owur SSL_SESSION *SSL_SESSION_dup(SSL_SESSION *src);
1607 const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s,
1608                                         unsigned int *len);
1609 const unsigned char *SSL_SESSION_get0_id_context(const SSL_SESSION *s,
1610                                                 unsigned int *len);
1611 __owur unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s);
1612 # ifndef OPENSSL_NO_STDIO
1613 int SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *ses);
1614 # endif
1615 int SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
1616 int SSL_SESSION_print_keylog(BIO *bp, const SSL_SESSION *x);
1617 int SSL_SESSION_up_ref(SSL_SESSION *ses);
1618 void SSL_SESSION_free(SSL_SESSION *ses);
1619 __owur int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp);
1620 __owur int SSL_set_session(SSL *to, SSL_SESSION *session);
1621 int SSL_CTX_add_session(SSL_CTX *s, SSL_SESSION *c);
1622 int SSL_CTX_remove_session(SSL_CTX *, SSL_SESSION *c);
1623 __owur int SSL_CTX_set_generate_session_id(SSL_CTX *, GEN_SESSION_CB);
1624 __owur int SSL_set_generate_session_id(SSL *, GEN_SESSION_CB);
1625 __owur int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
1626                                 unsigned int id_len);
1627 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
1628                              long length);
1629
1630 # ifdef HEADER_X509_H
1631 __owur X509 *SSL_get_peer_certificate(const SSL *s);
1632 # endif
1633
1634 __owur STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s);
1635
1636 __owur int SSL_CTX_get_verify_mode(const SSL_CTX *ctx);
1637 __owur int SSL_CTX_get_verify_depth(const SSL_CTX *ctx);
1638 __owur SSL_verify_cb SSL_CTX_get_verify_callback(const SSL_CTX *ctx);
1639 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, SSL_verify_cb callback);
1640 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth);
1641 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1642                                       int (*cb) (X509_STORE_CTX *, void *),
1643                                       void *arg);
1644 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1645                          void *arg);
1646 # ifndef OPENSSL_NO_RSA
1647 __owur int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa);
1648 __owur int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
1649                                    long len);
1650 # endif
1651 __owur int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey);
1652 __owur int SSL_CTX_use_PrivateKey_ASN1(int pk, SSL_CTX *ctx,
1653                                 const unsigned char *d, long len);
1654 __owur int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x);
1655 __owur int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
1656                                  const unsigned char *d);
1657 __owur int SSL_CTX_use_cert_and_key(SSL_CTX *ctx, X509 *x509, EVP_PKEY *privatekey,
1658                                     STACK_OF(X509) *chain, int override);
1659
1660 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb);
1661 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u);
1662 pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx);
1663 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx);
1664 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb);
1665 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u);
1666 pem_password_cb *SSL_get_default_passwd_cb(SSL *s);
1667 void *SSL_get_default_passwd_cb_userdata(SSL *s);
1668
1669 __owur int SSL_CTX_check_private_key(const SSL_CTX *ctx);
1670 __owur int SSL_check_private_key(const SSL *ctx);
1671
1672 __owur int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
1673                                    unsigned int sid_ctx_len);
1674
1675 SSL *SSL_new(SSL_CTX *ctx);
1676 int SSL_up_ref(SSL *s);
1677 int SSL_is_dtls(const SSL *s);
1678 __owur int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
1679                                unsigned int sid_ctx_len);
1680
1681 __owur int SSL_CTX_set_purpose(SSL_CTX *s, int purpose);
1682 __owur int SSL_set_purpose(SSL *s, int purpose);
1683 __owur int SSL_CTX_set_trust(SSL_CTX *s, int trust);
1684 __owur int SSL_set_trust(SSL *s, int trust);
1685
1686 __owur int SSL_set1_host(SSL *s, const char *hostname);
1687 __owur int SSL_add1_host(SSL *s, const char *hostname);
1688 __owur const char *SSL_get0_peername(SSL *s);
1689 void SSL_set_hostflags(SSL *s, unsigned int flags);
1690
1691 __owur int SSL_CTX_dane_enable(SSL_CTX *ctx);
1692 __owur int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md,
1693                                   uint8_t mtype, uint8_t ord);
1694 __owur int SSL_dane_enable(SSL *s, const char *basedomain);
1695 __owur int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector,
1696                              uint8_t mtype, unsigned const char *data, size_t dlen);
1697 __owur int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki);
1698 __owur int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector,
1699                               uint8_t *mtype, unsigned const char **data,
1700                               size_t *dlen);
1701 /*
1702  * Bridge opacity barrier between libcrypt and libssl, also needed to support
1703  * offline testing in test/danetest.c
1704  */
1705 SSL_DANE *SSL_get0_dane(SSL *ssl);
1706 /*
1707  * DANE flags
1708  */
1709 unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags);
1710 unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags);
1711 unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags);
1712 unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags);
1713
1714 __owur int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
1715 __owur int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
1716
1717 __owur X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
1718 __owur X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
1719
1720 # ifndef OPENSSL_NO_SRP
1721 int SSL_CTX_set_srp_username(SSL_CTX *ctx, char *name);
1722 int SSL_CTX_set_srp_password(SSL_CTX *ctx, char *password);
1723 int SSL_CTX_set_srp_strength(SSL_CTX *ctx, int strength);
1724 int SSL_CTX_set_srp_client_pwd_callback(SSL_CTX *ctx,
1725                                         char *(*cb) (SSL *, void *));
1726 int SSL_CTX_set_srp_verify_param_callback(SSL_CTX *ctx,
1727                                           int (*cb) (SSL *, void *));
1728 int SSL_CTX_set_srp_username_callback(SSL_CTX *ctx,
1729                                       int (*cb) (SSL *, int *, void *));
1730 int SSL_CTX_set_srp_cb_arg(SSL_CTX *ctx, void *arg);
1731
1732 int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g,
1733                              BIGNUM *sa, BIGNUM *v, char *info);
1734 int SSL_set_srp_server_param_pw(SSL *s, const char *user, const char *pass,
1735                                 const char *grp);
1736
1737 __owur BIGNUM *SSL_get_srp_g(SSL *s);
1738 __owur BIGNUM *SSL_get_srp_N(SSL *s);
1739
1740 __owur char *SSL_get_srp_username(SSL *s);
1741 __owur char *SSL_get_srp_userinfo(SSL *s);
1742 # endif
1743
1744 /*
1745  * ClientHello callback and helpers.
1746  */
1747
1748 # define SSL_CLIENT_HELLO_SUCCESS 1
1749 # define SSL_CLIENT_HELLO_ERROR   0
1750 # define SSL_CLIENT_HELLO_RETRY   (-1)
1751
1752 typedef int (*SSL_client_hello_cb_fn) (SSL *s, int *al, void *arg);
1753 void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb,
1754                                  void *arg);
1755 int SSL_client_hello_isv2(SSL *s);
1756 unsigned int SSL_client_hello_get0_legacy_version(SSL *s);
1757 size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out);
1758 size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out);
1759 size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out);
1760 size_t SSL_client_hello_get0_compression_methods(SSL *s,
1761                                                  const unsigned char **out);
1762 int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen);
1763 int SSL_client_hello_get0_ext(SSL *s, unsigned int type,
1764                               const unsigned char **out, size_t *outlen);
1765
1766 void SSL_certs_clear(SSL *s);
1767 void SSL_free(SSL *ssl);
1768 # ifdef OSSL_ASYNC_FD
1769 /*
1770  * Windows application developer has to include windows.h to use these.
1771  */
1772 __owur int SSL_waiting_for_async(SSL *s);
1773 __owur int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds);
1774 __owur int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd,
1775                                      size_t *numaddfds, OSSL_ASYNC_FD *delfd,
1776                                      size_t *numdelfds);
1777 # endif
1778 __owur int SSL_accept(SSL *ssl);
1779 __owur int SSL_stateless(SSL *s);
1780 __owur int SSL_connect(SSL *ssl);
1781 __owur int SSL_read(SSL *ssl, void *buf, int num);
1782 __owur int SSL_read_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes);
1783
1784 # define SSL_READ_EARLY_DATA_ERROR   0
1785 # define SSL_READ_EARLY_DATA_SUCCESS 1
1786 # define SSL_READ_EARLY_DATA_FINISH  2
1787
1788 __owur int SSL_read_early_data(SSL *s, void *buf, size_t num,
1789                                size_t *readbytes);
1790 __owur int SSL_peek(SSL *ssl, void *buf, int num);
1791 __owur int SSL_peek_ex(SSL *ssl, void *buf, size_t num, size_t *readbytes);
1792 __owur int SSL_write(SSL *ssl, const void *buf, int num);
1793 __owur int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written);
1794 __owur int SSL_write_early_data(SSL *s, const void *buf, size_t num,
1795                                 size_t *written);
1796 long SSL_ctrl(SSL *ssl, int cmd, long larg, void *parg);
1797 long SSL_callback_ctrl(SSL *, int, void (*)(void));
1798 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg);
1799 long SSL_CTX_callback_ctrl(SSL_CTX *, int, void (*)(void));
1800
1801 # define SSL_EARLY_DATA_NOT_SENT    0
1802 # define SSL_EARLY_DATA_REJECTED    1
1803 # define SSL_EARLY_DATA_ACCEPTED    2
1804
1805 __owur int SSL_get_early_data_status(const SSL *s);
1806
1807 __owur int SSL_get_error(const SSL *s, int ret_code);
1808 __owur const char *SSL_get_version(const SSL *s);
1809
1810 /* This sets the 'default' SSL version that SSL_new() will create */
1811 __owur int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
1812
1813 # ifndef OPENSSL_NO_SSL3_METHOD
1814 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_method(void)) /* SSLv3 */
1815 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_server_method(void)) /* SSLv3 */
1816 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_client_method(void)) /* SSLv3 */
1817 # endif
1818
1819 #define SSLv23_method           TLS_method
1820 #define SSLv23_server_method    TLS_server_method
1821 #define SSLv23_client_method    TLS_client_method
1822
1823 /* Negotiate highest available SSL/TLS version */
1824 __owur const SSL_METHOD *TLS_method(void);
1825 __owur const SSL_METHOD *TLS_server_method(void);
1826 __owur const SSL_METHOD *TLS_client_method(void);
1827
1828 # ifndef OPENSSL_NO_TLS1_METHOD
1829 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_method(void)) /* TLSv1.0 */
1830 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_server_method(void)) /* TLSv1.0 */
1831 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_client_method(void)) /* TLSv1.0 */
1832 # endif
1833
1834 # ifndef OPENSSL_NO_TLS1_1_METHOD
1835 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_method(void)) /* TLSv1.1 */
1836 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_server_method(void)) /* TLSv1.1 */
1837 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_client_method(void)) /* TLSv1.1 */
1838 # endif
1839
1840 # ifndef OPENSSL_NO_TLS1_2_METHOD
1841 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_method(void)) /* TLSv1.2 */
1842 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_server_method(void)) /* TLSv1.2 */
1843 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_client_method(void)) /* TLSv1.2 */
1844 # endif
1845
1846 # ifndef OPENSSL_NO_DTLS1_METHOD
1847 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_method(void)) /* DTLSv1.0 */
1848 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_server_method(void)) /* DTLSv1.0 */
1849 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_client_method(void)) /* DTLSv1.0 */
1850 # endif
1851
1852 # ifndef OPENSSL_NO_DTLS1_2_METHOD
1853 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_method(void)) /* DTLSv1.2 */
1854 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_server_method(void)) /* DTLSv1.2 */
1855 DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_client_method(void)) /* DTLSv1.2 */
1856 #endif
1857
1858 __owur const SSL_METHOD *DTLS_method(void); /* DTLS 1.0 and 1.2 */
1859 __owur const SSL_METHOD *DTLS_server_method(void); /* DTLS 1.0 and 1.2 */
1860 __owur const SSL_METHOD *DTLS_client_method(void); /* DTLS 1.0 and 1.2 */
1861
1862 __owur size_t DTLS_get_data_mtu(const SSL *s);
1863
1864 __owur STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
1865 __owur STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx);
1866 __owur STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s);
1867 __owur STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s);
1868
1869 __owur int SSL_do_handshake(SSL *s);
1870 int SSL_key_update(SSL *s, int updatetype);
1871 int SSL_get_key_update_type(SSL *s);
1872 int SSL_renegotiate(SSL *s);
1873 int SSL_renegotiate_abbreviated(SSL *s);
1874 __owur int SSL_renegotiate_pending(SSL *s);
1875 int SSL_shutdown(SSL *s);
1876 __owur int SSL_verify_client_post_handshake(SSL *s);
1877 void SSL_force_post_handshake_auth(SSL *s);
1878
1879 __owur const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx);
1880 __owur const SSL_METHOD *SSL_get_ssl_method(SSL *s);
1881 __owur int SSL_set_ssl_method(SSL *s, const SSL_METHOD *method);
1882 __owur const char *SSL_alert_type_string_long(int value);
1883 __owur const char *SSL_alert_type_string(int value);
1884 __owur const char *SSL_alert_desc_string_long(int value);
1885 __owur const char *SSL_alert_desc_string(int value);
1886
1887 void SSL_set0_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
1888 void SSL_CTX_set0_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
1889 __owur const STACK_OF(X509_NAME) *SSL_get0_CA_list(const SSL *s);
1890 __owur const STACK_OF(X509_NAME) *SSL_CTX_get0_CA_list(const SSL_CTX *ctx);
1891 __owur int SSL_add1_CA_list(SSL *ssl, const X509 *x);
1892 __owur int SSL_CTX_add1_CA_list(SSL_CTX *ctx, const X509 *x);
1893 __owur const STACK_OF(X509_NAME) *SSL_get0_peer_CA_list(const SSL *s);
1894
1895 void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
1896 void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
1897 __owur STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s);
1898 __owur STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
1899 __owur int SSL_add_client_CA(SSL *ssl, X509 *x);
1900 __owur int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x);
1901
1902 void SSL_set_connect_state(SSL *s);
1903 void SSL_set_accept_state(SSL *s);
1904
1905 __owur long SSL_get_default_timeout(const SSL *s);
1906
1907 #if OPENSSL_API_COMPAT < 0x10100000L
1908 # define SSL_library_init() OPENSSL_init_ssl(0, NULL)
1909 #endif
1910
1911 __owur char *SSL_CIPHER_description(const SSL_CIPHER *, char *buf, int size);
1912 __owur STACK_OF(X509_NAME) *SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk);
1913
1914 __owur SSL *SSL_dup(SSL *ssl);
1915
1916 __owur X509 *SSL_get_certificate(const SSL *ssl);
1917 /*
1918  * EVP_PKEY
1919  */ struct evp_pkey_st *SSL_get_privatekey(const SSL *ssl);
1920
1921 __owur X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx);
1922 __owur EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx);
1923
1924 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
1925 __owur int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
1926 void SSL_set_quiet_shutdown(SSL *ssl, int mode);
1927 __owur int SSL_get_quiet_shutdown(const SSL *ssl);
1928 void SSL_set_shutdown(SSL *ssl, int mode);
1929 __owur int SSL_get_shutdown(const SSL *ssl);
1930 __owur int SSL_version(const SSL *ssl);
1931 __owur int SSL_client_version(const SSL *s);
1932 __owur int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx);
1933 __owur int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx);
1934 __owur int SSL_CTX_set_default_verify_file(SSL_CTX *ctx);
1935 __owur int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1936                                   const char *CApath);
1937 # define SSL_get0_session SSL_get_session/* just peek at pointer */
1938 __owur SSL_SESSION *SSL_get_session(const SSL *ssl);
1939 __owur SSL_SESSION *SSL_get1_session(SSL *ssl); /* obtain a reference count */
1940 __owur SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl);
1941 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx);
1942 void SSL_set_info_callback(SSL *ssl,
1943                            void (*cb) (const SSL *ssl, int type, int val));
1944 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL *ssl, int type,
1945                                                int val);
1946 __owur OSSL_HANDSHAKE_STATE SSL_get_state(const SSL *ssl);
1947
1948 void SSL_set_verify_result(SSL *ssl, long v);
1949 __owur long SSL_get_verify_result(const SSL *ssl);
1950 __owur STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s);
1951
1952 __owur size_t SSL_get_client_random(const SSL *ssl, unsigned char *out,
1953                                     size_t outlen);
1954 __owur size_t SSL_get_server_random(const SSL *ssl, unsigned char *out,
1955                                     size_t outlen);
1956 __owur size_t SSL_SESSION_get_master_key(const SSL_SESSION *sess,
1957                                          unsigned char *out, size_t outlen);
1958 __owur int SSL_SESSION_set1_master_key(SSL_SESSION *sess,
1959                                        const unsigned char *in, size_t len);
1960 uint8_t SSL_SESSION_get_max_fragment_length(const SSL_SESSION *sess);
1961
1962 #define SSL_get_ex_new_index(l, p, newf, dupf, freef) \
1963     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
1964 __owur int SSL_set_ex_data(SSL *ssl, int idx, void *data);
1965 void *SSL_get_ex_data(const SSL *ssl, int idx);
1966 #define SSL_SESSION_get_ex_new_index(l, p, newf, dupf, freef) \
1967     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, l, p, newf, dupf, freef)
1968 __owur int SSL_SESSION_set_ex_data(SSL_SESSION *ss, int idx, void *data);
1969 void *SSL_SESSION_get_ex_data(const SSL_SESSION *ss, int idx);
1970 #define SSL_CTX_get_ex_new_index(l, p, newf, dupf, freef) \
1971     CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
1972 __owur int SSL_CTX_set_ex_data(SSL_CTX *ssl, int idx, void *data);
1973 void *SSL_CTX_get_ex_data(const SSL_CTX *ssl, int idx);
1974
1975 __owur int SSL_get_ex_data_X509_STORE_CTX_idx(void);
1976
1977 # define SSL_CTX_sess_set_cache_size(ctx,t) \
1978         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_SIZE,t,NULL)
1979 # define SSL_CTX_sess_get_cache_size(ctx) \
1980         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_SIZE,0,NULL)
1981 # define SSL_CTX_set_session_cache_mode(ctx,m) \
1982         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SESS_CACHE_MODE,m,NULL)
1983 # define SSL_CTX_get_session_cache_mode(ctx) \
1984         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_SESS_CACHE_MODE,0,NULL)
1985
1986 # define SSL_CTX_get_default_read_ahead(ctx) SSL_CTX_get_read_ahead(ctx)
1987 # define SSL_CTX_set_default_read_ahead(ctx,m) SSL_CTX_set_read_ahead(ctx,m)
1988 # define SSL_CTX_get_read_ahead(ctx) \
1989         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_READ_AHEAD,0,NULL)
1990 # define SSL_CTX_set_read_ahead(ctx,m) \
1991         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_READ_AHEAD,m,NULL)
1992 # define SSL_CTX_get_max_cert_list(ctx) \
1993         SSL_CTX_ctrl(ctx,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
1994 # define SSL_CTX_set_max_cert_list(ctx,m) \
1995         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
1996 # define SSL_get_max_cert_list(ssl) \
1997         SSL_ctrl(ssl,SSL_CTRL_GET_MAX_CERT_LIST,0,NULL)
1998 # define SSL_set_max_cert_list(ssl,m) \
1999         SSL_ctrl(ssl,SSL_CTRL_SET_MAX_CERT_LIST,m,NULL)
2000
2001 # define SSL_CTX_set_max_send_fragment(ctx,m) \
2002         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
2003 # define SSL_set_max_send_fragment(ssl,m) \
2004         SSL_ctrl(ssl,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
2005 # define SSL_CTX_set_split_send_fragment(ctx,m) \
2006         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
2007 # define SSL_set_split_send_fragment(ssl,m) \
2008         SSL_ctrl(ssl,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
2009 # define SSL_CTX_set_max_pipelines(ctx,m) \
2010         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
2011 # define SSL_set_max_pipelines(ssl,m) \
2012         SSL_ctrl(ssl,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
2013
2014 void SSL_CTX_set_default_read_buffer_len(SSL_CTX *ctx, size_t len);
2015 void SSL_set_default_read_buffer_len(SSL *s, size_t len);
2016
2017 # ifndef OPENSSL_NO_DH
2018 /* NB: the |keylength| is only applicable when is_export is true */
2019 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
2020                                  DH *(*dh) (SSL *ssl, int is_export,
2021                                             int keylength));
2022 void SSL_set_tmp_dh_callback(SSL *ssl,
2023                              DH *(*dh) (SSL *ssl, int is_export,
2024                                         int keylength));
2025 # endif
2026
2027 __owur const COMP_METHOD *SSL_get_current_compression(SSL *s);
2028 __owur const COMP_METHOD *SSL_get_current_expansion(SSL *s);
2029 __owur const char *SSL_COMP_get_name(const COMP_METHOD *comp);
2030 __owur const char *SSL_COMP_get0_name(const SSL_COMP *comp);
2031 __owur int SSL_COMP_get_id(const SSL_COMP *comp);
2032 STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void);
2033 __owur STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
2034                                                       *meths);
2035 #if OPENSSL_API_COMPAT < 0x10100000L
2036 # define SSL_COMP_free_compression_methods() while(0) continue
2037 #endif
2038 __owur int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
2039
2040 const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr);
2041 int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c);
2042 int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c);
2043 int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len,
2044                              int isv2format, STACK_OF(SSL_CIPHER) **sk,
2045                              STACK_OF(SSL_CIPHER) **scsvs);
2046
2047 /* TLS extensions functions */
2048 __owur int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len);
2049
2050 __owur int SSL_set_session_ticket_ext_cb(SSL *s, tls_session_ticket_ext_cb_fn cb,
2051                                   void *arg);
2052
2053 /* Pre-shared secret session resumption functions */
2054 __owur int SSL_set_session_secret_cb(SSL *s,
2055                               tls_session_secret_cb_fn tls_session_secret_cb,
2056                               void *arg);
2057
2058 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
2059                                                 int (*cb) (SSL *ssl,
2060                                                            int
2061                                                            is_forward_secure));
2062
2063 void SSL_set_not_resumable_session_callback(SSL *ssl,
2064                                             int (*cb) (SSL *ssl,
2065                                                        int
2066                                                        is_forward_secure));
2067
2068 void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx,
2069                                          size_t (*cb) (SSL *ssl, int type,
2070                                                        size_t len, void *arg));
2071 void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg);
2072 void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX *ctx);
2073 int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size);
2074
2075 void SSL_set_record_padding_callback(SSL *ssl,
2076                                     size_t (*cb) (SSL *ssl, int type,
2077                                                   size_t len, void *arg));
2078 void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg);
2079 void *SSL_get_record_padding_callback_arg(SSL *ssl);
2080 int SSL_set_block_padding(SSL *ssl, size_t block_size);
2081
2082 # if OPENSSL_API_COMPAT < 0x10100000L
2083 #  define SSL_cache_hit(s) SSL_session_reused(s)
2084 # endif
2085
2086 __owur int SSL_session_reused(SSL *s);
2087 __owur int SSL_is_server(const SSL *s);
2088
2089 __owur __owur SSL_CONF_CTX *SSL_CONF_CTX_new(void);
2090 int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx);
2091 void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx);
2092 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags);
2093 __owur unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags);
2094 __owur int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre);
2095
2096 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl);
2097 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx);
2098
2099 __owur int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value);
2100 __owur int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv);
2101 __owur int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd);
2102
2103 void SSL_add_ssl_module(void);
2104 int SSL_config(SSL *s, const char *name);
2105 int SSL_CTX_config(SSL_CTX *ctx, const char *name);
2106
2107 # ifndef OPENSSL_NO_SSL_TRACE
2108 void SSL_trace(int write_p, int version, int content_type,
2109                const void *buf, size_t len, SSL *ssl, void *arg);
2110 # endif
2111
2112 # ifndef OPENSSL_NO_SOCK
2113 int DTLSv1_listen(SSL *s, BIO_ADDR *client);
2114 # endif
2115
2116 # ifndef OPENSSL_NO_CT
2117
2118 /*
2119  * A callback for verifying that the received SCTs are sufficient.
2120  * Expected to return 1 if they are sufficient, otherwise 0.
2121  * May return a negative integer if an error occurs.
2122  * A connection should be aborted if the SCTs are deemed insufficient.
2123  */
2124 typedef int(*ssl_ct_validation_cb)(const CT_POLICY_EVAL_CTX *ctx,
2125                                    const STACK_OF(SCT) *scts, void *arg);
2126
2127 /*
2128  * Sets a |callback| that is invoked upon receipt of ServerHelloDone to validate
2129  * the received SCTs.
2130  * If the callback returns a non-positive result, the connection is terminated.
2131  * Call this function before beginning a handshake.
2132  * If a NULL |callback| is provided, SCT validation is disabled.
2133  * |arg| is arbitrary userdata that will be passed to the callback whenever it
2134  * is invoked. Ownership of |arg| remains with the caller.
2135  *
2136  * NOTE: A side-effect of setting a CT callback is that an OCSP stapled response
2137  *       will be requested.
2138  */
2139 int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
2140                                    void *arg);
2141 int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
2142                                        ssl_ct_validation_cb callback,
2143                                        void *arg);
2144 #define SSL_disable_ct(s) \
2145         ((void) SSL_set_validation_callback((s), NULL, NULL))
2146 #define SSL_CTX_disable_ct(ctx) \
2147         ((void) SSL_CTX_set_validation_callback((ctx), NULL, NULL))
2148
2149 /*
2150  * The validation type enumerates the available behaviours of the built-in SSL
2151  * CT validation callback selected via SSL_enable_ct() and SSL_CTX_enable_ct().
2152  * The underlying callback is a static function in libssl.
2153  */
2154 enum {
2155     SSL_CT_VALIDATION_PERMISSIVE = 0,
2156     SSL_CT_VALIDATION_STRICT
2157 };
2158
2159 /*
2160  * Enable CT by setting up a callback that implements one of the built-in
2161  * validation variants.  The SSL_CT_VALIDATION_PERMISSIVE variant always
2162  * continues the handshake, the application can make appropriate decisions at
2163  * handshake completion.  The SSL_CT_VALIDATION_STRICT variant requires at
2164  * least one valid SCT, or else handshake termination will be requested.  The
2165  * handshake may continue anyway if SSL_VERIFY_NONE is in effect.
2166  */
2167 int SSL_enable_ct(SSL *s, int validation_mode);
2168 int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode);
2169
2170 /*
2171  * Report whether a non-NULL callback is enabled.
2172  */
2173 int SSL_ct_is_enabled(const SSL *s);
2174 int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx);
2175
2176 /* Gets the SCTs received from a connection */
2177 const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s);
2178
2179 /*
2180  * Loads the CT log list from the default location.
2181  * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
2182  * the log information loaded from this file will be appended to the
2183  * CTLOG_STORE.
2184  * Returns 1 on success, 0 otherwise.
2185  */
2186 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx);
2187
2188 /*
2189  * Loads the CT log list from the specified file path.
2190  * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
2191  * the log information loaded from this file will be appended to the
2192  * CTLOG_STORE.
2193  * Returns 1 on success, 0 otherwise.
2194  */
2195 int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path);
2196
2197 /*
2198  * Sets the CT log list used by all SSL connections created from this SSL_CTX.
2199  * Ownership of the CTLOG_STORE is transferred to the SSL_CTX.
2200  */
2201 void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs);
2202
2203 /*
2204  * Gets the CT log list used by all SSL connections created from this SSL_CTX.
2205  * This will be NULL unless one of the following functions has been called:
2206  * - SSL_CTX_set_default_ctlog_list_file
2207  * - SSL_CTX_set_ctlog_list_file
2208  * - SSL_CTX_set_ctlog_store
2209  */
2210 const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx);
2211
2212 # endif /* OPENSSL_NO_CT */
2213
2214 /* What the "other" parameter contains in security callback */
2215 /* Mask for type */
2216 # define SSL_SECOP_OTHER_TYPE    0xffff0000
2217 # define SSL_SECOP_OTHER_NONE    0
2218 # define SSL_SECOP_OTHER_CIPHER  (1 << 16)
2219 # define SSL_SECOP_OTHER_CURVE   (2 << 16)
2220 # define SSL_SECOP_OTHER_DH      (3 << 16)
2221 # define SSL_SECOP_OTHER_PKEY    (4 << 16)
2222 # define SSL_SECOP_OTHER_SIGALG  (5 << 16)
2223 # define SSL_SECOP_OTHER_CERT    (6 << 16)
2224
2225 /* Indicated operation refers to peer key or certificate */
2226 # define SSL_SECOP_PEER          0x1000
2227
2228 /* Values for "op" parameter in security callback */
2229
2230 /* Called to filter ciphers */
2231 /* Ciphers client supports */
2232 # define SSL_SECOP_CIPHER_SUPPORTED      (1 | SSL_SECOP_OTHER_CIPHER)
2233 /* Cipher shared by client/server */
2234 # define SSL_SECOP_CIPHER_SHARED         (2 | SSL_SECOP_OTHER_CIPHER)
2235 /* Sanity check of cipher server selects */
2236 # define SSL_SECOP_CIPHER_CHECK          (3 | SSL_SECOP_OTHER_CIPHER)
2237 /* Curves supported by client */
2238 # define SSL_SECOP_CURVE_SUPPORTED       (4 | SSL_SECOP_OTHER_CURVE)
2239 /* Curves shared by client/server */
2240 # define SSL_SECOP_CURVE_SHARED          (5 | SSL_SECOP_OTHER_CURVE)
2241 /* Sanity check of curve server selects */
2242 # define SSL_SECOP_CURVE_CHECK           (6 | SSL_SECOP_OTHER_CURVE)
2243 /* Temporary DH key */
2244 # define SSL_SECOP_TMP_DH                (7 | SSL_SECOP_OTHER_PKEY)
2245 /* SSL/TLS version */
2246 # define SSL_SECOP_VERSION               (9 | SSL_SECOP_OTHER_NONE)
2247 /* Session tickets */
2248 # define SSL_SECOP_TICKET                (10 | SSL_SECOP_OTHER_NONE)
2249 /* Supported signature algorithms sent to peer */
2250 # define SSL_SECOP_SIGALG_SUPPORTED      (11 | SSL_SECOP_OTHER_SIGALG)
2251 /* Shared signature algorithm */
2252 # define SSL_SECOP_SIGALG_SHARED         (12 | SSL_SECOP_OTHER_SIGALG)
2253 /* Sanity check signature algorithm allowed */
2254 # define SSL_SECOP_SIGALG_CHECK          (13 | SSL_SECOP_OTHER_SIGALG)
2255 /* Used to get mask of supported public key signature algorithms */
2256 # define SSL_SECOP_SIGALG_MASK           (14 | SSL_SECOP_OTHER_SIGALG)
2257 /* Use to see if compression is allowed */
2258 # define SSL_SECOP_COMPRESSION           (15 | SSL_SECOP_OTHER_NONE)
2259 /* EE key in certificate */
2260 # define SSL_SECOP_EE_KEY                (16 | SSL_SECOP_OTHER_CERT)
2261 /* CA key in certificate */
2262 # define SSL_SECOP_CA_KEY                (17 | SSL_SECOP_OTHER_CERT)
2263 /* CA digest algorithm in certificate */
2264 # define SSL_SECOP_CA_MD                 (18 | SSL_SECOP_OTHER_CERT)
2265 /* Peer EE key in certificate */
2266 # define SSL_SECOP_PEER_EE_KEY           (SSL_SECOP_EE_KEY | SSL_SECOP_PEER)
2267 /* Peer CA key in certificate */
2268 # define SSL_SECOP_PEER_CA_KEY           (SSL_SECOP_CA_KEY | SSL_SECOP_PEER)
2269 /* Peer CA digest algorithm in certificate */
2270 # define SSL_SECOP_PEER_CA_MD            (SSL_SECOP_CA_MD | SSL_SECOP_PEER)
2271
2272 void SSL_set_security_level(SSL *s, int level);
2273 __owur int SSL_get_security_level(const SSL *s);
2274 void SSL_set_security_callback(SSL *s,
2275                                int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
2276                                           int bits, int nid, void *other,
2277                                           void *ex));
2278 int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op,
2279                                                 int bits, int nid,
2280                                                 void *other, void *ex);
2281 void SSL_set0_security_ex_data(SSL *s, void *ex);
2282 __owur void *SSL_get0_security_ex_data(const SSL *s);
2283
2284 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level);
2285 __owur int SSL_CTX_get_security_level(const SSL_CTX *ctx);
2286 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
2287                                    int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
2288                                               int bits, int nid, void *other,
2289                                               void *ex));
2290 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
2291                                                           const SSL_CTX *ctx,
2292                                                           int op, int bits,
2293                                                           int nid,
2294                                                           void *other,
2295                                                           void *ex);
2296 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex);
2297 __owur void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx);
2298
2299 /* OPENSSL_INIT flag 0x010000 reserved for internal use */
2300 #define OPENSSL_INIT_NO_LOAD_SSL_STRINGS    0x00100000L
2301 #define OPENSSL_INIT_LOAD_SSL_STRINGS       0x00200000L
2302
2303 #define OPENSSL_INIT_SSL_DEFAULT \
2304         (OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS)
2305
2306 int OPENSSL_init_ssl(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
2307
2308 # ifndef OPENSSL_NO_UNIT_TEST
2309 __owur const struct openssl_ssl_test_functions *SSL_test_functions(void);
2310 # endif
2311
2312 __owur int SSL_free_buffers(SSL *ssl);
2313 __owur int SSL_alloc_buffers(SSL *ssl);
2314
2315 /* Return codes for tls_get_ticket_from_client() and tls_decrypt_ticket() */
2316 typedef int SSL_TICKET_RETURN;
2317
2318 /* Support for ticket appdata */
2319 /* fatal error, malloc failure */
2320 # define SSL_TICKET_FATAL_ERR_MALLOC 0
2321 /* fatal error, either from parsing or decrypting the ticket */
2322 # define SSL_TICKET_FATAL_ERR_OTHER  1
2323 /* No ticket present */
2324 # define SSL_TICKET_NONE             2
2325 /* Empty ticket present */
2326 # define SSL_TICKET_EMPTY            3
2327 /* the ticket couldn't be decrypted */
2328 # define SSL_TICKET_NO_DECRYPT       4
2329 /* a ticket was successfully decrypted */
2330 # define SSL_TICKET_SUCCESS          5
2331 /* same as above but the ticket needs to be renewed */
2332 # define SSL_TICKET_SUCCESS_RENEW    6
2333
2334 typedef int (*SSL_CTX_generate_session_ticket_fn)(SSL *s, void *arg);
2335 typedef SSL_TICKET_RETURN (*SSL_CTX_decrypt_session_ticket_fn)(SSL *s, SSL_SESSION *ss,
2336                                                                const unsigned char *keyname,
2337                                                                size_t keyname_length,
2338                                                                SSL_TICKET_RETURN retv,
2339                                                                void *arg);
2340 int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx,
2341                                   SSL_CTX_generate_session_ticket_fn gen_cb,
2342                                   SSL_CTX_decrypt_session_ticket_fn dec_cb,
2343                                   void *arg);
2344 int SSL_SESSION_set1_ticket_appdata(SSL_SESSION *ss, const void *data, size_t len);
2345 int SSL_SESSION_get0_ticket_appdata(SSL_SESSION *ss, void **data, size_t *len);
2346
2347 extern const char SSL_version_str[];
2348
2349
2350
2351 typedef unsigned int (*DTLS_timer_cb)(SSL *s, unsigned int timer_us);
2352
2353 void DTLS_set_timer_cb(SSL *s, DTLS_timer_cb cb);
2354
2355
2356 # ifdef  __cplusplus
2357 }
2358 # endif
2359 #endif