/*- * SSLsplit - transparent SSL/TLS interception * https://www.roe.ch/SSLsplit * * Copyright (c) 2009-2018, Daniel Roethlisberger . * 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 #include #include #include #include #include /* * LibreSSL seems to ship engine support on a source code level, but it seems * to be broken. Tested with LibreSSL 2.7.4 on OpenBSD and macOS. For now, * disable engine support when building against LibreSSL. */ #if defined(LIBRESSL_VERSION_NUMBER) && !defined(OPENSSL_NO_ENGINE) #define OPENSSL_NO_ENGINE #endif #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) #if LIBRESSL_VERSION_NUMBER >= 0x2050100fL #define SSL_is_server(ssl) ((ssl)->server) #else /* < LibreSSL 2.5.1 and OpenSSL < 1.1.0 */ #define SSL_is_server(ssl) ((ssl)->type != SSL_ST_CONNECT) #endif /* < LibreSSL 2.5.1 and OpenSSL < 1.1.0 */ #define ASN1_STRING_get0_data(value) ASN1_STRING_data(value) #define X509_get_signature_nid(x509) (OBJ_obj2nid(x509->sig_alg->algorithm)) int DH_set0_pqg(DH *, BIGNUM *, BIGNUM *, BIGNUM *); #endif /* < OpenSSL 1.1.0 */ #if OPENSSL_VERSION_NUMBER < 0x1000000fL static inline int EVP_PKEY_base_id(const EVP_PKEY *pkey) { return EVP_PKEY_type(pkey->type); } static inline int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, const unsigned char **pk, int *ppklen, X509_ALGOR **pa, X509_PUBKEY *pub) { if (ppkalg) *ppkalg = pub->algor->algorithm; if (pk) { *pk = pub->public_key->data; *ppklen = pub->public_key->length; } if (pa) *pa = pub->algor; return 1; } #ifndef X509_get_X509_PUBKEY #define X509_get_X509_PUBKEY(x) ((x)->cert_info->key #endif #endif /* OpenSSL < 1.0.0 */ /* * 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); #ifndef OPENSSL_NO_ENGINE int ssl_engine(const char *) WUNRES; #endif /* !OPENSSL_NO_ENGINE */ 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); int ssl_x509chain_use(SSL_CTX *, X509 *, STACK_OF(X509) *) NONNULL(1,2,3) WUNRES; 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: */