- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- /* ====================================================================
- * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- /* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- * ECC cipher suite support in OpenSSL originally developed by
- * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
- */
- /* ====================================================================
- * Copyright 2005 Nokia. All rights reserved.
- *
- * The portions of the attached software ("Contribution") is developed by
- * Nokia Corporation and is licensed pursuant to the OpenSSL open source
- * license.
- *
- * The Contribution, originally written by Mika Kousa and Pasi Eronen of
- * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
- * support (see RFC 4279) to OpenSSL.
- *
- * No patent licenses or other rights except those expressly stated in
- * the OpenSSL open source license shall be deemed granted or received
- * expressly, by implication, estoppel, or otherwise.
- *
- * No assurances are provided by Nokia that the Contribution does not
- * infringe the patent or other intellectual property rights of any third
- * party or that the license provides you with all the necessary rights
- * to make use of the Contribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
- * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
- * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
- * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
- * OTHERWISE.
- */
-
- #ifndef HEADER_SSL_LOCL_H
- #define HEADER_SSL_LOCL_H
-
- #include <openssl/base.h>
-
- #include <errno.h>
- #include <stdlib.h>
- #include <string.h>
- #include <time.h>
-
- #include <openssl/aead.h>
- #include <openssl/bio.h>
- #include <openssl/buf.h>
- #include <openssl/dsa.h>
- #include <openssl/err.h>
- #include <openssl/rsa.h>
- #include <openssl/ssl.h>
- #include <openssl/stack.h>
-
-
- #define c2l(c, l) \
- (l = ((unsigned long)(*((c)++))), l |= (((unsigned long)(*((c)++))) << 8), \
- l |= (((unsigned long)(*((c)++))) << 16), \
- l |= (((unsigned long)(*((c)++))) << 24))
-
- /* NOTE - c is not incremented as per c2l */
- #define c2ln(c, l1, l2, n) \
- { \
- c += n; \
- l1 = l2 = 0; \
- switch (n) { \
- case 8: \
- l2 = ((unsigned long)(*(--(c)))) << 24; \
- case 7: \
- l2 |= ((unsigned long)(*(--(c)))) << 16; \
- case 6: \
- l2 |= ((unsigned long)(*(--(c)))) << 8; \
- case 5: \
- l2 |= ((unsigned long)(*(--(c)))); \
- case 4: \
- l1 = ((unsigned long)(*(--(c)))) << 24; \
- case 3: \
- l1 |= ((unsigned long)(*(--(c)))) << 16; \
- case 2: \
- l1 |= ((unsigned long)(*(--(c)))) << 8; \
- case 1: \
- l1 |= ((unsigned long)(*(--(c)))); \
- } \
- }
-
- #define l2c(l, c) \
- (*((c)++) = (uint8_t)(((l)) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 8) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 16) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 24) & 0xff))
-
- #define n2l(c, l) \
- (l = ((unsigned long)(*((c)++))) << 24, \
- l |= ((unsigned long)(*((c)++))) << 16, \
- l |= ((unsigned long)(*((c)++))) << 8, l |= ((unsigned long)(*((c)++))))
-
- #define l2n(l, c) \
- (*((c)++) = (uint8_t)(((l) >> 24) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 16) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 8) & 0xff), \
- *((c)++) = (uint8_t)(((l)) & 0xff))
-
- #define l2n8(l, c) \
- (*((c)++) = (uint8_t)(((l) >> 56) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 48) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 40) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 32) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 24) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 16) & 0xff), \
- *((c)++) = (uint8_t)(((l) >> 8) & 0xff), \
- *((c)++) = (uint8_t)(((l)) & 0xff))
-
- /* NOTE - c is not incremented as per l2c */
- #define l2cn(l1, l2, c, n) \
- { \
- c += n; \
- switch (n) { \
- case 8: \
- *(--(c)) = (uint8_t)(((l2) >> 24) & 0xff); \
- case 7: \
- *(--(c)) = (uint8_t)(((l2) >> 16) & 0xff); \
- case 6: \
- *(--(c)) = (uint8_t)(((l2) >> 8) & 0xff); \
- case 5: \
- *(--(c)) = (uint8_t)(((l2)) & 0xff); \
- case 4: \
- *(--(c)) = (uint8_t)(((l1) >> 24) & 0xff); \
- case 3: \
- *(--(c)) = (uint8_t)(((l1) >> 16) & 0xff); \
- case 2: \
- *(--(c)) = (uint8_t)(((l1) >> 8) & 0xff); \
- case 1: \
- *(--(c)) = (uint8_t)(((l1)) & 0xff); \
- } \
- }
-
- #define n2s(c, s) \
- ((s = (((unsigned int)(c[0])) << 8) | (((unsigned int)(c[1])))), c += 2)
-
- #define s2n(s, c) \
- ((c[0] = (uint8_t)(((s) >> 8) & 0xff), \
- c[1] = (uint8_t)(((s)) & 0xff)), \
- c += 2)
-
- #define n2l3(c, l) \
- ((l = (((unsigned long)(c[0])) << 16) | (((unsigned long)(c[1])) << 8) | \
- (((unsigned long)(c[2])))), \
- c += 3)
-
- #define l2n3(l, c) \
- ((c[0] = (uint8_t)(((l) >> 16) & 0xff), \
- c[1] = (uint8_t)(((l) >> 8) & 0xff), \
- c[2] = (uint8_t)(((l)) & 0xff)), \
- c += 3)
-
- /* LOCAL STUFF */
-
- #define SSL_DECRYPT 0
- #define SSL_ENCRYPT 1
-
- #define TWO_BYTE_BIT 0x80
- #define SEC_ESC_BIT 0x40
- #define TWO_BYTE_MASK 0x7fff
- #define THREE_BYTE_MASK 0x3fff
-
- #define INC32(a) ((a) = ((a) + 1) & 0xffffffffL)
- #define DEC32(a) ((a) = ((a)-1) & 0xffffffffL)
- #define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
-
- /* Define the Bitmasks for SSL_CIPHER.algorithms.
- *
- * This bits are used packed as dense as possible. If new methods/ciphers etc
- * will be added, the bits a likely to change, so this information is for
- * internal library use only, even though SSL_CIPHER.algorithms can be publicly
- * accessed. Use the according functions for cipher management instead.
- *
- * The bit mask handling in the selection and sorting scheme in
- * ssl_create_cipher_list() has only limited capabilities, reflecting that the
- * different entities within are mutually exclusive:
- * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. */
-
- /* Bits for algorithm_mkey (key exchange algorithm) */
- #define SSL_kRSA 0x00000001L /* RSA key exchange */
- #define SSL_kEDH 0x00000002L /* tmp DH key no DH cert */
- #define SSL_kEECDH 0x00000004L /* ephemeral ECDH */
- #define SSL_kPSK 0x00000008L /* PSK */
-
- /* Bits for algorithm_auth (server authentication) */
- #define SSL_aRSA 0x00000001L /* RSA auth */
- #define SSL_aNULL 0x00000002L /* no auth (i.e. use ADH or AECDH) */
- #define SSL_aECDSA 0x00000004L /* ECDSA auth*/
- #define SSL_aPSK 0x00000008L /* PSK auth */
-
- /* Bits for algorithm_enc (symmetric encryption) */
- #define SSL_3DES 0x00000001L
- #define SSL_RC4 0x00000002L
- #define SSL_AES128 0x00000004L
- #define SSL_AES256 0x00000008L
- #define SSL_AES128GCM 0x00000010L
- #define SSL_AES256GCM 0x00000020L
- #define SSL_CHACHA20POLY1305 0x00000040L
-
- #define SSL_AES (SSL_AES128 | SSL_AES256 | SSL_AES128GCM | SSL_AES256GCM)
-
- /* Bits for algorithm_mac (symmetric authentication) */
-
- #define SSL_MD5 0x00000001L
- #define SSL_SHA1 0x00000002L
- #define SSL_SHA256 0x00000004L
- #define SSL_SHA384 0x00000008L
- /* Not a real MAC, just an indication it is part of cipher */
- #define SSL_AEAD 0x00000010L
-
- /* Bits for algorithm_ssl (protocol version) */
- #define SSL_SSLV3 0x00000002L
- #define SSL_TLSV1 SSL_SSLV3 /* for now */
- #define SSL_TLSV1_2 0x00000004L
-
- /* Bits for algorithm2 (handshake digests and other extra flags) */
-
- #define SSL_HANDSHAKE_MAC_MD5 0x10
- #define SSL_HANDSHAKE_MAC_SHA 0x20
- #define SSL_HANDSHAKE_MAC_SHA256 0x40
- #define SSL_HANDSHAKE_MAC_SHA384 0x80
- #define SSL_HANDSHAKE_MAC_DEFAULT \
- (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
-
- /* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX
- * make sure to update this constant too */
- #define SSL_MAX_DIGEST 4
-
- #define TLS1_PRF_DGST_MASK (0xff << TLS1_PRF_DGST_SHIFT)
-
- #define TLS1_PRF_DGST_SHIFT 10
- #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
- #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
- #define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
- #define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
- #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
-
- #define TLSEXT_CHANNEL_ID_SIZE 128
-
- /* SSL_CIPHER_ALGORITHM2_AEAD is a flag in SSL_CIPHER.algorithm2 which
- * indicates that the cipher is implemented via an EVP_AEAD. */
- #define SSL_CIPHER_ALGORITHM2_AEAD (1 << 23)
-
- /* SSL_CIPHER_ALGORITHM2_VARIABLE_NONCE_INCLUDED_IN_RECORD is a flag in
- * SSL_CIPHER.algorithm2 which indicates that the variable part of the nonce is
- * included as a prefix of the record. (AES-GCM, for example, does with with an
- * 8-byte variable nonce.) */
- #define SSL_CIPHER_ALGORITHM2_VARIABLE_NONCE_INCLUDED_IN_RECORD (1<<22)
-
- /* Cipher strength information. */
- #define SSL_MEDIUM 0x00000001L
- #define SSL_HIGH 0x00000002L
- #define SSL_FIPS 0x00000004L
-
- /* we have used 000001ff - 23 bits left to go */
-
- /* Check if an SSL structure is using DTLS */
- #define SSL_IS_DTLS(s) (s->enc_method->enc_flags & SSL_ENC_FLAG_DTLS)
- /* See if we need explicit IV */
- #define SSL_USE_EXPLICIT_IV(s) \
- (s->enc_method->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
- /* See if we use signature algorithms extension and signature algorithm before
- * signatures. */
- #define SSL_USE_SIGALGS(s) (s->enc_method->enc_flags & SSL_ENC_FLAG_SIGALGS)
- /* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
- * apply to others in future. */
- #define SSL_USE_TLS1_2_CIPHERS(s) \
- (s->enc_method->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
- /* Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
- * flags because it may not be set to correct version yet. */
- #define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
- ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \
- (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION))
-
- /* Mostly for SSLv3 */
- #define SSL_PKEY_RSA_ENC 0
- #define SSL_PKEY_RSA_SIGN 1
- #define SSL_PKEY_ECC 2
- #define SSL_PKEY_NUM 3
-
- /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
- * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
- * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
- * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
- * SSL_aRSA <- RSA_ENC | RSA_SIGN
- * SSL_aDSS <- DSA_SIGN */
-
- #define PENDING_SESSION -10000
- #define CERTIFICATE_SELECTION_PENDING -10001
-
- /* From RFC4492, used in encoding the curve type in ECParameters */
- #define EXPLICIT_PRIME_CURVE_TYPE 1
- #define EXPLICIT_CHAR2_CURVE_TYPE 2
- #define NAMED_CURVE_TYPE 3
-
- /* Values for the |hash_message| parameter of |s->method->ssl_get_message|. */
- #define SSL_GET_MESSAGE_DONT_HASH_MESSAGE 0
- #define SSL_GET_MESSAGE_HASH_MESSAGE 1
-
- typedef struct cert_pkey_st {
- X509 *x509;
- EVP_PKEY *privatekey;
- /* Chain for this certificate */
- STACK_OF(X509) * chain;
- } CERT_PKEY;
-
- typedef struct cert_st {
- /* Current active set */
- CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
- * Probably it would make more sense to store
- * an index, not a pointer. */
-
- /* For clients the following masks are of *disabled* key and auth algorithms
- * based on the current session.
- *
- * TODO(davidben): Remove these. They get checked twice: when sending the
- * ClientHello and when processing the ServerHello. However, mask_ssl is a
- * different value both times. mask_k and mask_a are not, but is a
- * round-about way of checking the server's cipher was one of the advertised
- * ones. (Currently it checks the masks and then the list of ciphers prior to
- * applying the masks in ClientHello.) */
- unsigned long mask_k;
- unsigned long mask_a;
- unsigned long mask_ssl;
-
- DH *dh_tmp;
- DH *(*dh_tmp_cb)(SSL *ssl, int is_export, int keysize);
- EC_KEY *ecdh_tmp;
- /* Callback for generating ephemeral ECDH keys */
- EC_KEY *(*ecdh_tmp_cb)(SSL *ssl, int is_export, int keysize);
- /* Select ECDH parameters automatically */
- int ecdh_tmp_auto;
- /* Flags related to certificates */
- unsigned int cert_flags;
- CERT_PKEY pkeys[SSL_PKEY_NUM];
-
- /* Server-only: client_certificate_types is list of certificate types to
- * include in the CertificateRequest message.
- */
- uint8_t *client_certificate_types;
- size_t num_client_certificate_types;
-
- /* signature algorithms peer reports: e.g. supported signature
- * algorithms extension for server or as part of a certificate
- * request for client. */
- uint8_t *peer_sigalgs;
- /* Size of above array */
- size_t peer_sigalgslen;
- /* suppported signature algorithms.
- * When set on a client this is sent in the client hello as the
- * supported signature algorithms extension. For servers
- * it represents the signature algorithms we are willing to use. */
- uint8_t *conf_sigalgs;
- /* Size of above array */
- size_t conf_sigalgslen;
- /* Client authentication signature algorithms, if not set then
- * uses conf_sigalgs. On servers these will be the signature
- * algorithms sent to the client in a cerificate request for TLS 1.2.
- * On a client this represents the signature algortithms we are
- * willing to use for client authentication. */
- uint8_t *client_sigalgs;
- /* Size of above array */
- size_t client_sigalgslen;
- /* Signature algorithms shared by client and server: cached
- * because these are used most often. */
- TLS_SIGALGS *shared_sigalgs;
- size_t shared_sigalgslen;
-
- /* Certificate setup callback: if set is called whenever a
- * certificate may be required (client or server). the callback
- * can then examine any appropriate parameters and setup any
- * certificates required. This allows advanced applications
- * to select certificates on the fly: for example based on
- * supported signature algorithms or curves. */
- int (*cert_cb)(SSL *ssl, void *arg);
- void *cert_cb_arg;
-
- /* Optional X509_STORE for chain building or certificate validation
- * If NULL the parent SSL_CTX store is used instead. */
- X509_STORE *chain_store;
- X509_STORE *verify_store;
-
- /* Raw values of the cipher list from a client */
- uint8_t *ciphers_raw;
- size_t ciphers_rawlen;
- } CERT;
-
- typedef struct sess_cert_st {
- STACK_OF(X509) * cert_chain; /* as received from peer (not for SSL2) */
-
- /* The 'peer_...' members are used only by clients. */
- int peer_cert_type;
-
- CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
- CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
- /* Obviously we don't have the private keys of these,
- * so maybe we shouldn't even use the CERT_PKEY type here. */
-
- DH *peer_dh_tmp;
- EC_KEY *peer_ecdh_tmp;
- } SESS_CERT;
-
- /* Structure containing decoded values of signature algorithms extension */
- struct tls_sigalgs_st {
- /* NID of hash algorithm */
- int hash_nid;
- /* NID of signature algorithm */
- int sign_nid;
- /* Combined hash and signature NID */
- int signandhash_nid;
- /* Raw values used in extension */
- uint8_t rsign;
- uint8_t rhash;
- };
-
- /* SSL_METHOD is a compatibility structure to support the legacy version-locked
- * methods. */
- struct ssl_method_st {
- /* version, if non-zero, is the only protocol version acceptable to an
- * SSL_CTX initialized from this method. */
- uint16_t version;
- /* method is the underlying SSL_PROTOCOL_METHOD that initializes the
- * SSL_CTX. */
- const SSL_PROTOCOL_METHOD *method;
- };
-
- /* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
- struct ssl_protocol_method_st {
- int (*ssl_new)(SSL *s);
- void (*ssl_free)(SSL *s);
- int (*ssl_accept)(SSL *s);
- int (*ssl_connect)(SSL *s);
- int (*ssl_read)(SSL *s, void *buf, int len);
- int (*ssl_peek)(SSL *s, void *buf, int len);
- int (*ssl_write)(SSL *s, const void *buf, int len);
- int (*ssl_shutdown)(SSL *s);
- int (*ssl_renegotiate)(SSL *s);
- int (*ssl_renegotiate_check)(SSL *s);
- long (*ssl_get_message)(SSL *s, int header_state, int body_state,
- int msg_type, long max, int hash_message, int *ok);
- int (*ssl_read_bytes)(SSL *s, int type, uint8_t *buf, int len, int peek);
- int (*ssl_write_bytes)(SSL *s, int type, const void *buf_, int len);
- int (*ssl_dispatch_alert)(SSL *s);
- long (*ssl_ctrl)(SSL *s, int cmd, long larg, void *parg);
- long (*ssl_ctx_ctrl)(SSL_CTX *ctx, int cmd, long larg, void *parg);
- int (*ssl_pending)(const SSL *s);
- int (*num_ciphers)(void);
- const SSL_CIPHER *(*get_cipher)(unsigned ncipher);
- int (*ssl_version)(void);
- long (*ssl_callback_ctrl)(SSL *s, int cb_id, void (*fp)(void));
- long (*ssl_ctx_callback_ctrl)(SSL_CTX *s, int cb_id, void (*fp)(void));
- };
-
- /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
- * of a mess of functions, but hell, think of it as an opaque structure. */
- struct ssl3_enc_method {
- int (*enc)(SSL *, int);
- int (*prf)(SSL *, uint8_t *, size_t, const uint8_t *, size_t, const char *,
- size_t, const uint8_t *, size_t, const uint8_t *, size_t);
- int (*setup_key_block)(SSL *);
- int (*generate_master_secret)(SSL *, uint8_t *, const uint8_t *, size_t);
- int (*change_cipher_state)(SSL *, int);
- int (*final_finish_mac)(SSL *, const char *, int, uint8_t *);
- int finish_mac_length;
- int (*cert_verify_mac)(SSL *, int, uint8_t *);
- const char *client_finished_label;
- int client_finished_label_len;
- const char *server_finished_label;
- int server_finished_label_len;
- int (*alert_value)(int);
- int (*export_keying_material)(SSL *, uint8_t *, size_t, const char *, size_t,
- const uint8_t *, size_t, int use_context);
- /* Various flags indicating protocol version requirements */
- unsigned int enc_flags;
- /* Handshake header length */
- unsigned int hhlen;
- /* Set the handshake header */
- void (*set_handshake_header)(SSL *s, int type, unsigned long len);
- /* Write out handshake message */
- int (*do_write)(SSL *s);
- };
-
- #define SSL_HM_HEADER_LENGTH(s) s->enc_method->hhlen
- #define ssl_handshake_start(s) \
- (((uint8_t *)s->init_buf->data) + s->enc_method->hhlen)
- #define ssl_set_handshake_header(s, htype, len) \
- s->enc_method->set_handshake_header(s, htype, len)
- #define ssl_do_write(s) s->enc_method->do_write(s)
-
- /* Values for enc_flags */
-
- /* Uses explicit IV for CBC mode */
- #define SSL_ENC_FLAG_EXPLICIT_IV 0x1
- /* Uses signature algorithms extension */
- #define SSL_ENC_FLAG_SIGALGS 0x2
- /* Uses SHA256 default PRF */
- #define SSL_ENC_FLAG_SHA256_PRF 0x4
- /* Is DTLS */
- #define SSL_ENC_FLAG_DTLS 0x8
- /* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2:
- * may apply to others in future. */
- #define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
-
- /* ssl_aead_ctx_st contains information about an AEAD that is being used to
- * encrypt an SSL connection. */
- struct ssl_aead_ctx_st {
- EVP_AEAD_CTX ctx;
- /* fixed_nonce contains any bytes of the nonce that are fixed for all
- * records. */
- uint8_t fixed_nonce[8];
- uint8_t fixed_nonce_len, variable_nonce_len, tag_len;
- /* variable_nonce_included_in_record is non-zero if the variable nonce
- * for a record is included as a prefix before the ciphertext. */
- char variable_nonce_included_in_record;
- /* random_variable_nonce is non-zero if the variable nonce is
- * randomly generated, rather than derived from the sequence
- * number. */
- char random_variable_nonce;
- /* omit_length_in_ad is non-zero if the length should be omitted in the
- * AEAD's ad parameter. */
- char omit_length_in_ad;
- /* omit_version_in_ad is non-zero if the version should be omitted
- * in the AEAD's ad parameter. */
- char omit_version_in_ad;
- };
-
- extern const SSL_CIPHER ssl3_ciphers[];
-
- extern const SSL3_ENC_METHOD TLSv1_enc_data;
- extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
- extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
- extern const SSL3_ENC_METHOD SSLv3_enc_data;
- extern const SSL3_ENC_METHOD DTLSv1_enc_data;
- extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
-
- void ssl_clear_cipher_ctx(SSL *s);
- int ssl_clear_bad_session(SSL *s);
- CERT *ssl_cert_new(void);
- CERT *ssl_cert_dup(CERT *cert);
- int ssl_cert_inst(CERT **o);
- void ssl_cert_clear_certs(CERT *c);
- void ssl_cert_free(CERT *c);
- SESS_CERT *ssl_sess_cert_new(void);
- void ssl_sess_cert_free(SESS_CERT *sc);
- int ssl_set_peer_cert_type(SESS_CERT *c, int type);
- int ssl_get_prev_session(SSL *s, const struct ssl_early_callback_ctx *ctx);
- int ssl_cipher_id_cmp(const void *in_a, const void *in_b);
- int ssl_cipher_ptr_id_cmp(const SSL_CIPHER **ap, const SSL_CIPHER **bp);
- STACK_OF(SSL_CIPHER) * ssl_bytes_to_cipher_list(SSL *s, const CBS *cbs);
- int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) * sk, uint8_t *p);
- STACK_OF(SSL_CIPHER) *
- ssl_create_cipher_list(const SSL_PROTOCOL_METHOD *meth,
- struct ssl_cipher_preference_list_st **pref,
- STACK_OF(SSL_CIPHER) * *sorted, const char *rule_str,
- CERT *c);
- struct ssl_cipher_preference_list_st *ssl_cipher_preference_list_dup(
- struct ssl_cipher_preference_list_st *cipher_list);
- void ssl_cipher_preference_list_free(
- struct ssl_cipher_preference_list_st *cipher_list);
- struct ssl_cipher_preference_list_st *ssl_cipher_preference_list_from_ciphers(
- STACK_OF(SSL_CIPHER) * ciphers);
- struct ssl_cipher_preference_list_st *ssl_get_cipher_preferences(SSL *s);
-
- /* ssl_cipher_get_evp_aead sets |*out_aead| to point to the correct EVP_AEAD
- * object for |cipher| protocol version |version|. It sets |*out_mac_secret_len|
- * and |*out_fixed_iv_len| to the MAC key length and fixed IV length,
- * respectively. The MAC key length is zero except for legacy block and stream
- * ciphers. It returns 1 on success and 0 on error. */
- int ssl_cipher_get_evp_aead(const EVP_AEAD **out_aead,
- size_t *out_mac_secret_len,
- size_t *out_fixed_iv_len,
- const SSL_CIPHER *cipher, uint16_t version);
-
- int ssl_get_handshake_digest(size_t i, long *mask, const EVP_MD **md);
- int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
- int ssl_cipher_has_server_public_key(const SSL_CIPHER *cipher);
- int ssl_cipher_requires_server_key_exchange(const SSL_CIPHER *cipher);
-
- int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) * chain);
- int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) * chain);
- int ssl_cert_add0_chain_cert(CERT *c, X509 *x);
- int ssl_cert_add1_chain_cert(CERT *c, X509 *x);
- int ssl_cert_select_current(CERT *c, X509 *x);
- void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg);
-
- int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) * sk);
- int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
- int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags);
- int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
- int ssl_undefined_function(SSL *s);
- int ssl_undefined_void_function(void);
- int ssl_undefined_const_function(const SSL *s);
- CERT_PKEY *ssl_get_server_send_pkey(const SSL *s);
- EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c);
- int ssl_cert_type(EVP_PKEY *pkey);
-
- /* ssl_get_compatible_server_ciphers determines the key exchange and
- * authentication cipher suite masks compatible with the server configuration
- * and current ClientHello parameters of |s|. It sets |*out_mask_k| to the key
- * exchange mask and |*out_mask_a| to the authentication mask. */
- void ssl_get_compatible_server_ciphers(SSL *s, unsigned long *out_mask_k,
- unsigned long *out_mask_a);
-
- STACK_OF(SSL_CIPHER) * ssl_get_ciphers_by_id(SSL *s);
- int ssl_verify_alarm_type(long type);
- int ssl_fill_hello_random(SSL *s, int server, uint8_t *field, size_t len);
-
- const SSL_CIPHER *ssl3_get_cipher_by_value(uint16_t value);
- uint16_t ssl3_get_cipher_value(const SSL_CIPHER *c);
- int ssl3_init_finished_mac(SSL *s);
- int ssl3_send_server_certificate(SSL *s);
- int ssl3_send_new_session_ticket(SSL *s);
- int ssl3_send_cert_status(SSL *s);
- int ssl3_get_finished(SSL *s, int state_a, int state_b);
- int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b);
- int ssl3_prf(SSL *s, uint8_t *out, size_t out_len, const uint8_t *secret,
- size_t secret_len, const char *label, size_t label_len,
- const uint8_t *seed1, size_t seed1_len,
- const uint8_t *seed2, size_t seed2_len);
- void ssl3_cleanup_key_block(SSL *s);
- int ssl3_do_write(SSL *s, int type);
- int ssl3_send_alert(SSL *s, int level, int desc);
- int ssl3_get_req_cert_type(SSL *s, uint8_t *p);
- long ssl3_get_message(SSL *s, int header_state, int body_state, int msg_type,
- long max, int hash_message, int *ok);
-
- /* ssl3_hash_current_message incorporates the current handshake message into
- * the handshake hash. */
- void ssl3_hash_current_message(SSL *s);
-
- /* ssl3_cert_verify_hash writes the CertificateVerify hash into the bytes
- * pointed to by |out| and writes the number of bytes to |*out_len|. |out| must
- * have room for EVP_MAX_MD_SIZE bytes. For TLS 1.2 and up, |*out_md| is used
- * for the hash function, otherwise the hash function depends on the type of
- * |pkey| and is written to |*out_md|. It returns one on success and zero on
- * failure. */
- int ssl3_cert_verify_hash(SSL *s, uint8_t *out, size_t *out_len,
- const EVP_MD **out_md, EVP_PKEY *pkey);
-
- int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen);
- int ssl3_num_ciphers(void);
- const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
- int ssl3_renegotiate(SSL *ssl);
- int ssl3_renegotiate_check(SSL *ssl);
- int ssl3_dispatch_alert(SSL *s);
- int ssl3_expect_change_cipher_spec(SSL *s);
- int ssl3_read_bytes(SSL *s, int type, uint8_t *buf, int len, int peek);
- int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
- int ssl3_final_finish_mac(SSL *s, const char *sender, int slen, uint8_t *p);
- int ssl3_cert_verify_mac(SSL *s, int md_nid, uint8_t *p);
- void ssl3_finish_mac(SSL *s, const uint8_t *buf, int len);
- void ssl3_free_digest_list(SSL *s);
- unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
- const SSL_CIPHER *ssl3_choose_cipher(
- SSL *ssl, STACK_OF(SSL_CIPHER) * clnt,
- struct ssl_cipher_preference_list_st *srvr);
- int ssl3_setup_buffers(SSL *s);
- int ssl3_setup_read_buffer(SSL *s);
- int ssl3_setup_write_buffer(SSL *s);
- int ssl3_release_read_buffer(SSL *s);
- int ssl3_release_write_buffer(SSL *s);
-
- enum should_free_handshake_buffer_t {
- free_handshake_buffer,
- dont_free_handshake_buffer,
- };
- int ssl3_digest_cached_records(SSL *s, enum should_free_handshake_buffer_t);
-
- int ssl3_new(SSL *s);
- void ssl3_free(SSL *s);
- int ssl3_accept(SSL *s);
- int ssl3_connect(SSL *s);
- int ssl3_read(SSL *s, void *buf, int len);
- int ssl3_peek(SSL *s, void *buf, int len);
- int ssl3_write(SSL *s, const void *buf, int len);
- int ssl3_shutdown(SSL *s);
- long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
- long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
- long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp)(void));
- long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp)(void));
- int ssl3_pending(const SSL *s);
-
- void ssl3_record_sequence_update(uint8_t *seq);
- int ssl3_do_change_cipher_spec(SSL *ssl);
-
- void ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
- int ssl3_handshake_write(SSL *s);
-
- int dtls1_do_write(SSL *s, int type);
- int ssl3_read_n(SSL *s, int n, int max, int extend);
- int dtls1_read_bytes(SSL *s, int type, uint8_t *buf, int len, int peek);
- int ssl3_write_pending(SSL *s, int type, const uint8_t *buf, unsigned int len);
- void dtls1_set_message_header(SSL *s, uint8_t mt, unsigned long len,
- unsigned short seq_num, unsigned long frag_off,
- unsigned long frag_len);
-
- int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
- int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
-
- int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
- int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
- int dtls1_read_failed(SSL *s, int code);
- int dtls1_buffer_message(SSL *s, int ccs);
- int dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
- int *found);
- int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
- int dtls1_retransmit_buffered_messages(SSL *s);
- void dtls1_clear_record_buffer(SSL *s);
- void dtls1_get_message_header(uint8_t *data, struct hm_header_st *msg_hdr);
- void dtls1_get_ccs_header(uint8_t *data, struct ccs_header_st *ccs_hdr);
- void dtls1_reset_seq_numbers(SSL *s, int rw);
- int dtls1_check_timeout_num(SSL *s);
- int dtls1_handle_timeout(SSL *s);
- const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
- void dtls1_start_timer(SSL *s);
- void dtls1_stop_timer(SSL *s);
- int dtls1_is_timer_expired(SSL *s);
- void dtls1_double_timeout(SSL *s);
- unsigned int dtls1_min_mtu(void);
- void dtls1_hm_fragment_free(hm_fragment *frag);
-
- /* some client-only functions */
- int ssl3_send_client_hello(SSL *s);
- int ssl3_get_server_hello(SSL *s);
- int ssl3_get_certificate_request(SSL *s);
- int ssl3_get_new_session_ticket(SSL *s);
- int ssl3_get_cert_status(SSL *s);
- int ssl3_get_server_done(SSL *s);
- int ssl3_send_cert_verify(SSL *s);
- int ssl3_send_client_certificate(SSL *s);
- int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
- int ssl3_send_client_key_exchange(SSL *s);
- int ssl3_get_server_key_exchange(SSL *s);
- int ssl3_get_server_certificate(SSL *s);
- int ssl3_check_cert_and_algorithm(SSL *s);
- int ssl3_send_next_proto(SSL *s);
- int ssl3_send_channel_id(SSL *s);
-
- int dtls1_client_hello(SSL *s);
-
- /* some server-only functions */
- int ssl3_get_initial_bytes(SSL *s);
- int ssl3_get_v2_client_hello(SSL *s);
- int ssl3_get_client_hello(SSL *s);
- int ssl3_send_server_hello(SSL *s);
- int ssl3_send_hello_request(SSL *s);
- int ssl3_send_server_key_exchange(SSL *s);
- int ssl3_send_certificate_request(SSL *s);
- int ssl3_send_server_done(SSL *s);
- int ssl3_get_client_certificate(SSL *s);
- int ssl3_get_client_key_exchange(SSL *s);
- int ssl3_get_cert_verify(SSL *s);
- int ssl3_get_next_proto(SSL *s);
- int ssl3_get_channel_id(SSL *s);
-
- int dtls1_new(SSL *s);
- int dtls1_accept(SSL *s);
- int dtls1_connect(SSL *s);
- void dtls1_free(SSL *s);
- long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
- int dtls1_shutdown(SSL *s);
-
- long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max,
- int hash_message, int *ok);
- int dtls1_get_record(SSL *s);
- int dtls1_dispatch_alert(SSL *s);
-
- int ssl_init_wbio_buffer(SSL *s, int push);
- void ssl_free_wbio_buffer(SSL *s);
-
- /* tls1_prf computes the TLS PRF function for |s| as described in RFC 5246,
- * section 5 and RFC 2246 section 5. It writes |out_len| bytes to |out|, using
- * |secret| as the secret and |label| as the label. |seed1| and |seed2| are
- * concatenated to form the seed parameter. It returns one on success and zero
- * on failure. */
- int tls1_prf(SSL *s, uint8_t *out, size_t out_len, const uint8_t *secret,
- size_t secret_len, const char *label, size_t label_len,
- const uint8_t *seed1, size_t seed1_len,
- const uint8_t *seed2, size_t seed2_len);
-
- int tls1_change_cipher_state(SSL *s, int which);
- int tls1_setup_key_block(SSL *s);
- int tls1_enc(SSL *s, int snd);
- int tls1_handshake_digest(SSL *s, uint8_t *out, size_t out_len);
- int tls1_final_finish_mac(SSL *s, const char *str, int slen, uint8_t *p);
- int tls1_cert_verify_mac(SSL *s, int md_nid, uint8_t *p);
- int tls1_generate_master_secret(SSL *s, uint8_t *out, const uint8_t *premaster,
- size_t premaster_len);
- int tls1_export_keying_material(SSL *s, uint8_t *out, size_t olen,
- const char *label, size_t llen,
- const uint8_t *p, size_t plen, int use_context);
- int tls1_alert_code(int code);
- int ssl3_alert_code(int code);
- int ssl_ok(SSL *s);
-
- int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
-
- char ssl_early_callback_init(struct ssl_early_callback_ctx *ctx);
- int tls1_ec_curve_id2nid(uint16_t curve_id);
- int tls1_ec_nid2curve_id(uint16_t *out_curve_id, int nid);
-
- /* tls1_check_curve parses ECParameters out of |cbs|, modifying it. It
- * checks the curve is one of our preferences and writes the
- * NamedCurve value to |*out_curve_id|. It returns one on success and
- * zero on error. */
- int tls1_check_curve(SSL *s, CBS *cbs, uint16_t *out_curve_id);
-
- /* tls1_get_shared_curve returns the NID of the first preferred shared curve
- * between client and server preferences. If none can be found, it returns
- * NID_undef. */
- int tls1_get_shared_curve(SSL *s);
-
- /* tls1_set_curves converts the array of |ncurves| NIDs pointed to by |curves|
- * into a newly allocated array of TLS curve IDs. On success, the function
- * returns one and writes the array to |*out_curve_ids| and its size to
- * |*out_curve_ids_len|. Otherwise, it returns zero. */
- int tls1_set_curves(uint16_t **out_curve_ids, size_t *out_curve_ids_len,
- const int *curves, size_t ncurves);
-
- /* tls1_check_ec_cert returns one if |x| is an ECC certificate with curve and
- * point format compatible with the client's preferences. Otherwise it returns
- * zero. */
- int tls1_check_ec_cert(SSL *s, X509 *x);
-
- /* tls1_check_ec_tmp_key returns one if the EC temporary key is compatible with
- * client extensions and zero otherwise. */
- int tls1_check_ec_tmp_key(SSL *s);
-
- int tls1_shared_list(SSL *s, const uint8_t *l1, size_t l1len, const uint8_t *l2,
- size_t l2len, int nmatch);
- uint8_t *ssl_add_clienthello_tlsext(SSL *s, uint8_t *buf, uint8_t *limit,
- size_t header_len);
- uint8_t *ssl_add_serverhello_tlsext(SSL *s, uint8_t *buf, uint8_t *limit);
- int ssl_parse_clienthello_tlsext(SSL *s, CBS *cbs);
- int ssl_parse_serverhello_tlsext(SSL *s, CBS *cbs);
- int ssl_prepare_clienthello_tlsext(SSL *s);
- int ssl_prepare_serverhello_tlsext(SSL *s);
-
- #define tlsext_tick_md EVP_sha256
- int tls1_process_ticket(SSL *s, const struct ssl_early_callback_ctx *ctx,
- SSL_SESSION **ret);
-
- int tls12_get_sigandhash(uint8_t *p, const EVP_PKEY *pk, const EVP_MD *md);
- int tls12_get_sigid(const EVP_PKEY *pk);
- const EVP_MD *tls12_get_hash(uint8_t hash_alg);
-
- int tls1_channel_id_hash(EVP_MD_CTX *ctx, SSL *s);
- int tls1_record_handshake_hashes_for_channel_id(SSL *s);
-
- int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
- int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
-
- /* ssl_ctx_log_rsa_client_key_exchange logs |premaster| to |ctx|, if logging is
- * enabled. It returns one on success and zero on failure. The entry is
- * identified by the first 8 bytes of |encrypted_premaster|. */
- int ssl_ctx_log_rsa_client_key_exchange(SSL_CTX *ctx,
- const uint8_t *encrypted_premaster,
- size_t encrypted_premaster_len,
- const uint8_t *premaster,
- size_t premaster_len);
-
- /* ssl_ctx_log_master_secret logs |master| to |ctx|, if logging is enabled. It
- * returns one on success and zero on failure. The entry is identified by
- * |client_random|. */
- int ssl_ctx_log_master_secret(SSL_CTX *ctx, const uint8_t *client_random,
- size_t client_random_len, const uint8_t *master,
- size_t master_len);
-
- int ssl3_can_cutthrough(const SSL *s);
-
- /* ssl3_get_enc_method returns the SSL3_ENC_METHOD corresponding to
- * |version|. */
- const SSL3_ENC_METHOD *ssl3_get_enc_method(uint16_t version);
-
- /* ssl3_get_max_server_version returns the maximum SSL/TLS version number
- * supported by |s| as a server, or zero if all versions are disabled. */
- uint16_t ssl3_get_max_server_version(const SSL *s);
-
- /* ssl3_get_mutual_version selects the protocol version on |s| for a client
- * which advertises |client_version|. If no suitable version exists, it returns
- * zero. */
- uint16_t ssl3_get_mutual_version(SSL *s, uint16_t client_version);
-
- /* ssl3_get_max_client_version returns the maximum protocol version configured
- * for the client. It is guaranteed that the set of allowed versions at or below
- * this maximum version is contiguous. If all versions are disabled, it returns
- * zero. */
- uint16_t ssl3_get_max_client_version(SSL *s);
-
- /* ssl3_is_version_enabled returns one if |version| is an enabled protocol
- * version for |s| and zero otherwise. */
- int ssl3_is_version_enabled(SSL *s, uint16_t version);
-
- /* ssl3_version_from_wire maps |wire_version| to a protocol version. For
- * SSLv3/TLS, the version is returned as-is. For DTLS, the corresponding TLS
- * version is used. Note that this mapping is not injective but preserves
- * comparisons.
- *
- * TODO(davidben): To normalize some DTLS-specific code, move away from using
- * the wire version except at API boundaries. */
- uint16_t ssl3_version_from_wire(SSL *s, uint16_t wire_version);
-
- int ssl_add_serverhello_renegotiate_ext(SSL *s, uint8_t *p, int *len,
- int maxlen);
- int ssl_parse_serverhello_renegotiate_ext(SSL *s, CBS *cbs, int *out_alert);
- int ssl_add_clienthello_renegotiate_ext(SSL *s, uint8_t *p, int *len,
- int maxlen);
- int ssl_parse_clienthello_renegotiate_ext(SSL *s, CBS *cbs, int *out_alert);
- long ssl_get_algorithm2(SSL *s);
- int tls1_process_sigalgs(SSL *s, const CBS *sigalgs);
-
- /* tls1_choose_signing_digest returns a digest for use with |pkey| based on the
- * peer's preferences recorded for |s| and the digests supported by |pkey|. */
- const EVP_MD *tls1_choose_signing_digest(SSL *s, EVP_PKEY *pkey);
-
- size_t tls12_get_psigalgs(SSL *s, const uint8_t **psigs);
- int tls12_check_peer_sigalg(const EVP_MD **out_md, int *out_alert, SSL *s,
- CBS *cbs, EVP_PKEY *pkey);
- void ssl_set_client_disabled(SSL *s);
-
- int ssl_add_clienthello_use_srtp_ext(SSL *s, uint8_t *p, int *len, int maxlen);
- int ssl_parse_clienthello_use_srtp_ext(SSL *s, CBS *cbs, int *out_alert);
- int ssl_add_serverhello_use_srtp_ext(SSL *s, uint8_t *p, int *len, int maxlen);
- int ssl_parse_serverhello_use_srtp_ext(SSL *s, CBS *cbs, int *out_alert);
-
- #endif
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