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SSLproxy/ssl.h

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/*-
* SSLsplit - transparent SSL/TLS interception
* https://www.roe.ch/SSLsplit
*
* Copyright (c) 2009-2018, Daniel Roethlisberger <daniel@roe.ch>.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``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 COPYRIGHT HOLDER 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.
*/
#ifndef SSL_H
#define SSL_H
#include "attrib.h"
#include <openssl/opensslv.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#if (OPENSSL_VERSION_NUMBER < 0x10000000L) && !defined(OPENSSL_NO_THREADID)
#define OPENSSL_NO_THREADID
#endif
#if (OPENSSL_VERSION_NUMBER < 0x0090806FL) && !defined(OPENSSL_NO_TLSEXT)
#define OPENSSL_NO_TLSEXT
#endif
/*
* ECDH is disabled when building against OpenSSL < 1.0.0e due to issues with
* thread-safety and security in server mode ephemereal ECDH cipher suites.
* http://www.openssl.org/news/secadv_20110906.txt
*/
#if (OPENSSL_VERSION_NUMBER < 0x1000005FL) && !defined(OPENSSL_NO_ECDH)
#define OPENSSL_NO_ECDH
#endif
#if (OPENSSL_VERSION_NUMBER < 0x0090802FL) && !defined(OPENSSL_NO_ECDSA)
#define OPENSSL_NO_ECDSA
#endif
#if (OPENSSL_VERSION_NUMBER < 0x0090802FL) && !defined(OPENSSL_NO_EC)
#define OPENSSL_NO_EC
#endif
/*
* SHA0 was removed in OpenSSL 1.1.0, including OPENSSL_NO_SHA0.
*/
#if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER) && !defined(OPENSSL_NO_SHA0)
#define OPENSSL_NO_SHA0
#endif
#if (OPENSSL_VERSION_NUMBER < 0x10100000L) || defined(LIBRESSL_VERSION_NUMBER)
#define ASN1_STRING_get0_data(value) ASN1_STRING_data(value)
#define SSL_is_server(ssl) (ssl->type != SSL_ST_CONNECT)
#define X509_get_signature_nid(x509) (OBJ_obj2nid(x509->sig_alg->algorithm))
int DH_set0_pqg(DH *, BIGNUM *, BIGNUM *, BIGNUM *);
#endif
/*
* The constructors returning a SSL_METHOD * were changed to return
* a const SSL_METHOD * between 0.9.8 and 1.0.0.
*/
#if (OPENSSL_VERSION_NUMBER < 0x1000000fL)
#define CONST_SSL_METHOD SSL_METHOD
#else /* >= OpenSSL 1.0.0 */
#define CONST_SSL_METHOD const SSL_METHOD
#endif /* >= OpensSL 1.0.0 */
/*
* Workaround for bug in OpenSSL 0.9.8y, 1.0.0k and 1.0.1e
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=703031
* http://openssl.6102.n7.nabble.com/NULL-ptr-deref-when-calling-SSL-get-certificate-with-1-0-0k-td43636.html
*/
#if (OPENSSL_VERSION_NUMBER == 0x0090819fL) || \
(OPENSSL_VERSION_NUMBER == 0x100000bfL) || \
(OPENSSL_VERSION_NUMBER == 0x1000105fL)
#define SSL_get_certificate(x) ssl_ssl_cert_get(x)
X509 * ssl_ssl_cert_get(SSL *);
#endif /* OpenSSL 0.9.8y or 1.0.0k or 1.0.1e */
#ifdef OPENSSL_NO_TLSEXT
#ifndef TLSEXT_MAXLEN_host_name
#define TLSEXT_MAXLEN_host_name 255
#endif /* !TLSEXT_MAXLEN_host_name */
#endif /* OPENSSL_NO_TLSEXT */
/*
* SSL_OP_NO_* is used as an indication that OpenSSL is sufficiently recent
* to have the respective protocol implemented.
*
* OPENSSL_NO_SSL2 indicates the complete removal of SSL 2.0 support.
*
* OPENSSL_NO_SSL3 indicates that no SSL 3.0 connections will be made by
* default, but support is still present, unless OPENSSL_NO_SSL3_METHOD is
* also defined.
*/
#if defined(SSL_OP_NO_SSLv2) && !defined(OPENSSL_NO_SSL2) && \
defined(WITH_SSLV2)
#define HAVE_SSLV2
#endif /* SSL_OP_NO_SSLv2 && !OPENSSL_NO_SSL2 && WITH_SSLV2 */
#if defined(SSL_OP_NO_SSLv3) && !defined(OPENSSL_NO_SSL3_METHOD)
#define HAVE_SSLV3
#endif /* SSL_OP_NO_SSLv2 && !OPENSSL_NO_SSL3_METHOD */
#ifdef SSL_OP_NO_TLSv1
#define HAVE_TLSV10
#endif /* SSL_OP_NO_TLSv1 */
#ifdef SSL_OP_NO_TLSv1_1
#define HAVE_TLSV11
#endif /* SSL_OP_NO_TLSv1_1 */
#ifdef SSL_OP_NO_TLSv1_2
#define HAVE_TLSV12
#endif /* SSL_OP_NO_TLSv1_2 */
#ifdef HAVE_SSLV2
#define SSL2_S "ssl2 "
#else /* !HAVE_SSLV2 */
#define SSL2_S ""
#endif /* !HAVE_SSLV2 */
#ifdef HAVE_SSLV3
#define SSL3_S "ssl3 "
#else /* !HAVE_SSLV3 */
#define SSL3_S ""
#endif /* !HAVE_SSLV3 */
#ifdef HAVE_TLSV10
#define TLS10_S "tls10 "
#else /* !HAVE_TLSV10 */
#define TLS10_S ""
#endif /* !HAVE_TLSV10 */
#ifdef HAVE_TLSV11
#define TLS11_S "tls11 "
#else /* !HAVE_TLSV11 */
#define TLS11_S ""
#endif /* !HAVE_TLSV11 */
#ifdef HAVE_TLSV12
#define TLS12_S "tls12 "
#else /* !HAVE_TLSV12 */
#define TLS12_S ""
#endif /* !HAVE_TLSV12 */
#define SSL_PROTO_SUPPORT_S SSL2_S SSL3_S TLS10_S TLS11_S TLS12_S
void ssl_openssl_version(void);
int ssl_init(void) WUNRES;
int ssl_reinit(void) WUNRES;
void ssl_fini(void);
char * ssl_sha1_to_str(unsigned char *, int) NONNULL(1) MALLOC;
char * ssl_ssl_state_to_str(SSL *, const char *) NONNULL(1) MALLOC;
char * ssl_ssl_masterkey_to_str(SSL *) NONNULL(1) MALLOC;
#ifndef OPENSSL_NO_DH
DH * ssl_tmp_dh_callback(SSL *, int, int) NONNULL(1) MALLOC;
DH * ssl_dh_load(const char *) NONNULL(1) MALLOC;
void ssl_dh_refcount_inc(DH *) NONNULL(1);
#endif /* !OPENSSL_NO_DH */
#ifndef OPENSSL_NO_EC
EC_KEY * ssl_ec_by_name(const char *) MALLOC;
#endif /* !OPENSSL_NO_EC */
EVP_PKEY * ssl_key_load(const char *) NONNULL(1) MALLOC;
EVP_PKEY * ssl_key_genrsa(const int) MALLOC;
void ssl_key_refcount_inc(EVP_PKEY *) NONNULL(1);
#define SSL_KEY_IDSZ 20
int ssl_key_identifier_sha1(EVP_PKEY *, unsigned char *) NONNULL(1,2);
char * ssl_key_identifier(EVP_PKEY *, int) NONNULL(1) MALLOC;
#ifndef OPENSSL_NO_TLSEXT
int ssl_x509_v3ext_add(X509V3_CTX *, X509 *, char *, char *) NONNULL(1,2,3,4);
int ssl_x509_v3ext_copy_by_nid(X509 *, X509 *, int) NONNULL(1,2);
#endif /* !OPENSSL_NO_TLSEXT */
int ssl_x509_serial_copyrand(X509 *, X509 *) NONNULL(1,2);
X509 * ssl_x509_forge(X509 *, EVP_PKEY *, X509 *, EVP_PKEY *,
const char *, const char *)
NONNULL(1,2,3,4) MALLOC;
X509 * ssl_x509_load(const char *) NONNULL(1) MALLOC;
char * ssl_x509_subject(X509 *) NONNULL(1) MALLOC;
char * ssl_x509_subject_cn(X509 *, size_t *) NONNULL(1,2) MALLOC;
#define SSL_X509_FPRSZ 20
int ssl_x509_fingerprint_sha1(X509 *, unsigned char *) NONNULL(1,2);
char * ssl_x509_fingerprint(X509 *, int) NONNULL(1) MALLOC;
char ** ssl_x509_names(X509 *) NONNULL(1) MALLOC;
int ssl_x509_names_match(X509 *, const char *) NONNULL(1,2);
char * ssl_x509_names_to_str(X509 *) NONNULL(1) MALLOC;
char ** ssl_x509_aias(X509 *, const int) NONNULL(1) MALLOC;
char ** ssl_x509_ocsps(X509 *) NONNULL(1) MALLOC;
int ssl_x509_is_valid(X509 *) NONNULL(1) WUNRES;
char * ssl_x509_to_str(X509 *) NONNULL(1) MALLOC;
char * ssl_x509_to_pem(X509 *) NONNULL(1) MALLOC;
void ssl_x509_refcount_inc(X509 *) NONNULL(1);
int ssl_x509chain_load(X509 **, STACK_OF(X509) **, const char *) NONNULL(2,3);
void ssl_x509chain_use(SSL_CTX *, X509 *, STACK_OF(X509) *) NONNULL(1,2,3);
char * ssl_session_to_str(SSL_SESSION *) NONNULL(1) MALLOC;
int ssl_session_is_valid(SSL_SESSION *) NONNULL(1);
int ssl_is_ocspreq(const unsigned char *, size_t) NONNULL(1) WUNRES;
int ssl_tls_clienthello_parse(const unsigned char *, ssize_t, int,
const unsigned char **, char **)
NONNULL(1,4) WUNRES;
int ssl_dnsname_match(const char *, size_t, const char *, size_t)
NONNULL(1,3) WUNRES;
char * ssl_wildcardify(const char *) NONNULL(1) MALLOC;
#endif /* !SSL_H */
/* vim: set noet ft=c: */
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