X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_ciph.c;h=f62f37deb15e389a2373fbd50e5185e3b290ce7d;hp=9fed3ad59ac0bbabc1d8749803c1850dbc0906f7;hb=fe591284be1575d85d3a2f40d8ba93436ba2b3db;hpb=b7896b3cb86d80206af14a14d69b0717786f2729 diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c index 9fed3ad59a..f62f37deb1 100644 --- a/ssl/ssl_ciph.c +++ b/ssl/ssl_ciph.c @@ -1,5 +1,5 @@ /* ssl/ssl_ciph.c */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written @@ -55,9 +55,95 @@ * 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. + */ #include -#include "objects.h" +#include +#include +#include #include "ssl_locl.h" #define SSL_ENC_DES_IDX 0 @@ -65,97 +151,183 @@ #define SSL_ENC_RC4_IDX 2 #define SSL_ENC_RC2_IDX 3 #define SSL_ENC_IDEA_IDX 4 -#define SSL_ENC_eFZA_IDX 5 -#define SSL_ENC_NULL_IDX 6 -#define SSL_ENC_NUM_IDX 7 - -static EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ - NULL,NULL,NULL,NULL,NULL,NULL, +#define SSL_ENC_NULL_IDX 5 +#define SSL_ENC_AES128_IDX 6 +#define SSL_ENC_AES256_IDX 7 +#define SSL_ENC_CAMELLIA128_IDX 8 +#define SSL_ENC_CAMELLIA256_IDX 9 +#define SSL_ENC_GOST89_IDX 10 +#define SSL_ENC_SEED_IDX 11 +#define SSL_ENC_NUM_IDX 12 + + +static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ + NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, }; +#define SSL_COMP_NULL_IDX 0 +#define SSL_COMP_ZLIB_IDX 1 +#define SSL_COMP_NUM_IDX 2 + +static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL; + #define SSL_MD_MD5_IDX 0 -#define SSL_MD_SHA0_IDX 1 -#define SSL_MD_SHA1_IDX 2 -#define SSL_MD_NUM_IDX 3 -static EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ - NULL,NULL,NULL, +#define SSL_MD_SHA1_IDX 1 +#define SSL_MD_GOST94_IDX 2 +#define SSL_MD_GOST89MAC_IDX 3 +/*Constant SSL_MAX_DIGEST equal to size of digests array should be + * defined in the + * ssl_locl.h */ +#define SSL_MD_NUM_IDX SSL_MAX_DIGEST +static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ + NULL,NULL,NULL,NULL + }; +/* PKEY_TYPE for GOST89MAC is known in advance, but, because + * implementation is engine-provided, we'll fill it only if + * corresponding EVP_PKEY_METHOD is found + */ +static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={ + EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef }; -typedef struct cipher_sort_st - { - SSL_CIPHER *cipher; - int pref; - } CIPHER_SORT; +static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={ + 0,0,0,0 + }; + +static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={ + SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA, + SSL_HANDSHAKE_MAC_GOST94,0 + }; #define CIPHER_ADD 1 #define CIPHER_KILL 2 #define CIPHER_DEL 3 -#define CIPHER_ORDER 4 +#define CIPHER_ORD 4 +#define CIPHER_SPECIAL 5 -typedef struct cipher_choice_st +typedef struct cipher_order_st { - int type; - unsigned long algorithms; - unsigned long mask; - STACK *order; - } CIPHER_CHOICE; - -static SSL_CIPHER cipher_aliases[]={ - {0,SSL_TXT_ALL, 0,SSL_ALL, 0,SSL_ALL}, /* must be first */ - {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,SSL_MKEY_MASK}, - {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,SSL_MKEY_MASK}, - {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,SSL_MKEY_MASK}, - {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,SSL_MKEY_MASK}, - {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,SSL_MKEY_MASK}, - {0,SSL_TXT_DH, 0,SSL_DH, 0,SSL_MKEY_MASK}, - {0,SSL_TXT_EDH, 0,SSL_EDH, 0,SSL_MKEY_MASK|SSL_AUTH_MASK}, - - {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,SSL_AUTH_MASK}, - {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,SSL_AUTH_MASK}, - {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,SSL_AUTH_MASK}, - {0,SSL_TXT_aNULL,0,SSL_aNULL,0,SSL_AUTH_MASK}, - {0,SSL_TXT_aDH, 0,SSL_aDH, 0,SSL_AUTH_MASK}, - {0,SSL_TXT_DSS, 0,SSL_DSS, 0,SSL_AUTH_MASK}, - - {0,SSL_TXT_DES, 0,SSL_DES, 0,SSL_ENC_MASK}, - {0,SSL_TXT_3DES,0,SSL_3DES, 0,SSL_ENC_MASK}, - {0,SSL_TXT_RC4, 0,SSL_RC4, 0,SSL_ENC_MASK}, - {0,SSL_TXT_RC2, 0,SSL_RC2, 0,SSL_ENC_MASK}, - {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,SSL_ENC_MASK}, - {0,SSL_TXT_eNULL,0,SSL_eNULL,0,SSL_ENC_MASK}, - {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,SSL_ENC_MASK}, - - {0,SSL_TXT_MD5, 0,SSL_MD5, 0,SSL_MAC_MASK}, - {0,SSL_TXT_SHA0,0,SSL_SHA0, 0,SSL_MAC_MASK}, - {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,SSL_MAC_MASK}, - {0,SSL_TXT_SHA, 0,SSL_SHA, 0,SSL_MAC_MASK}, - - {0,SSL_TXT_NULL,0,SSL_NULL, 0,SSL_ENC_MASK}, - {0,SSL_TXT_RSA, 0,SSL_RSA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK}, - {0,SSL_TXT_ADH, 0,SSL_ADH, 0,SSL_AUTH_MASK|SSL_MKEY_MASK}, - {0,SSL_TXT_FZA, 0,SSL_FZA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK}, - - {0,SSL_TXT_EXP, 0,SSL_EXP, 0,SSL_EXP_MASK}, - {0,SSL_TXT_EXPORT,0,SSL_EXPORT,0,SSL_EXP_MASK}, - {0,SSL_TXT_SSLV2,0,SSL_SSLV2,0,SSL_SSL_MASK}, - {0,SSL_TXT_SSLV3,0,SSL_SSLV3,0,SSL_SSL_MASK}, - {0,SSL_TXT_LOW, 0,SSL_LOW,0,SSL_STRONG_MASK}, - {0,SSL_TXT_MEDIUM,0,SSL_MEDIUM,0,SSL_STRONG_MASK}, - {0,SSL_TXT_HIGH, 0,SSL_HIGH,0,SSL_STRONG_MASK}, + SSL_CIPHER *cipher; + int active; + int dead; + struct cipher_order_st *next,*prev; + } CIPHER_ORDER; + +static const SSL_CIPHER cipher_aliases[]={ + /* "ALL" doesn't include eNULL (must be specifically enabled) */ + {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0}, + /* "COMPLEMENTOFALL" */ + {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0}, + + /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */ + {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0,0}, + + /* key exchange aliases + * (some of those using only a single bit here combine + * multiple key exchange algs according to the RFCs, + * e.g. kEDH combines DHE_DSS and DHE_RSA) */ + {0,SSL_TXT_kRSA,0, SSL_kRSA, 0,0,0,0,0,0,0,0}, + + {0,SSL_TXT_kDHr,0, SSL_kDHr, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ + {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ + {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ + {0,SSL_TXT_kEDH,0, SSL_kEDH, 0,0,0,0,0,0,0,0}, + {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0}, + + {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0}, + + {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0}, + {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0}, + {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0}, + {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0}, + {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0}, + + {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0}, + {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0}, + + /* server authentication aliases */ + {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, + {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ + {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0}, + {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0}, + {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0}, + {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0}, + {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0}, + + /* aliases combining key exchange and server authentication */ + {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0}, + {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0}, + {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, + {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0}, + {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0}, + {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0}, + {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0}, + {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0}, + + + /* symmetric encryption aliases */ + {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0}, + {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0}, + {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0}, + {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0}, + {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0}, + {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0}, + {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, + {0,SSL_TXT_AES128,0, 0,0,SSL_AES128,0,0,0,0,0,0}, + {0,SSL_TXT_AES256,0, 0,0,SSL_AES256,0,0,0,0,0,0}, + {0,SSL_TXT_AES,0, 0,0,SSL_AES128|SSL_AES256,0,0,0,0,0,0}, + {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0}, + {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0}, + {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0}, + + /* MAC aliases */ + {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0}, + {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, + {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, + {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0}, + {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0}, + + /* protocol version aliases */ + {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0}, + {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0}, + {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0}, + + /* export flag */ + {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, + {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, + + /* strength classes */ + {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0}, + {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0}, + {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0}, + {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0}, + {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0}, }; - -static int init_ciphers=1; -static void load_ciphers(); - -static int cmp_by_name(a,b) -SSL_CIPHER **a,**b; +/* Search for public key algorithm with given name and + * return its pkey_id if it is available. Otherwise return 0 + */ +static int get_optional_pkey_id(const char *pkey_name) { - return(strcmp((*a)->name,(*b)->name)); + const EVP_PKEY_ASN1_METHOD *ameth; + ENGINE *tmpeng = NULL; + int pkey_id=0; + ameth = EVP_PKEY_asn1_find_str(&tmpeng,pkey_name,-1); + if (ameth) + { + EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); + } + if (tmpeng) ENGINE_finish(tmpeng); + return pkey_id; } -static void load_ciphers() +void ssl_load_ciphers(void) { - init_ciphers=0; ssl_cipher_methods[SSL_ENC_DES_IDX]= EVP_get_cipherbyname(SN_des_cbc); ssl_cipher_methods[SSL_ENC_3DES_IDX]= @@ -164,27 +336,131 @@ static void load_ciphers() EVP_get_cipherbyname(SN_rc4); ssl_cipher_methods[SSL_ENC_RC2_IDX]= EVP_get_cipherbyname(SN_rc2_cbc); +#ifndef OPENSSL_NO_IDEA ssl_cipher_methods[SSL_ENC_IDEA_IDX]= EVP_get_cipherbyname(SN_idea_cbc); +#else + ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL; +#endif + ssl_cipher_methods[SSL_ENC_AES128_IDX]= + EVP_get_cipherbyname(SN_aes_128_cbc); + ssl_cipher_methods[SSL_ENC_AES256_IDX]= + EVP_get_cipherbyname(SN_aes_256_cbc); + ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX]= + EVP_get_cipherbyname(SN_camellia_128_cbc); + ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]= + EVP_get_cipherbyname(SN_camellia_256_cbc); + ssl_cipher_methods[SSL_ENC_GOST89_IDX]= + EVP_get_cipherbyname(SN_gost89_cnt); + ssl_cipher_methods[SSL_ENC_SEED_IDX]= + EVP_get_cipherbyname(SN_seed_cbc); ssl_digest_methods[SSL_MD_MD5_IDX]= EVP_get_digestbyname(SN_md5); - ssl_digest_methods[SSL_MD_SHA0_IDX]= - EVP_get_digestbyname(SN_sha); + ssl_mac_secret_size[SSL_MD_MD5_IDX]= + EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]); ssl_digest_methods[SSL_MD_SHA1_IDX]= EVP_get_digestbyname(SN_sha1); + ssl_mac_secret_size[SSL_MD_SHA1_IDX]= + EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]); + ssl_digest_methods[SSL_MD_GOST94_IDX]= + EVP_get_digestbyname(SN_id_GostR3411_94); + if (ssl_digest_methods[SSL_MD_GOST94_IDX]) + { + ssl_mac_secret_size[SSL_MD_GOST94_IDX]= + EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]); + } + ssl_digest_methods[SSL_MD_GOST89MAC_IDX]= + EVP_get_digestbyname(SN_id_Gost28147_89_MAC); + ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac"); + if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { + ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32; + } + } +#ifndef OPENSSL_NO_COMP -int ssl_cipher_get_evp(c,enc,md) -SSL_CIPHER *c; -EVP_CIPHER **enc; -EVP_MD **md; +static int sk_comp_cmp(const SSL_COMP * const *a, + const SSL_COMP * const *b) + { + return((*a)->id-(*b)->id); + } + +static void load_builtin_compressions(void) + { + int got_write_lock = 0; + + CRYPTO_r_lock(CRYPTO_LOCK_SSL); + if (ssl_comp_methods == NULL) + { + CRYPTO_r_unlock(CRYPTO_LOCK_SSL); + CRYPTO_w_lock(CRYPTO_LOCK_SSL); + got_write_lock = 1; + + if (ssl_comp_methods == NULL) + { + SSL_COMP *comp = NULL; + + MemCheck_off(); + ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp); + if (ssl_comp_methods != NULL) + { + comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); + if (comp != NULL) + { + comp->method=COMP_zlib(); + if (comp->method + && comp->method->type == NID_undef) + OPENSSL_free(comp); + else + { + comp->id=SSL_COMP_ZLIB_IDX; + comp->name=comp->method->name; + sk_SSL_COMP_push(ssl_comp_methods,comp); + } + } + } + MemCheck_on(); + } + } + + if (got_write_lock) + CRYPTO_w_unlock(CRYPTO_LOCK_SSL); + else + CRYPTO_r_unlock(CRYPTO_LOCK_SSL); + } +#endif + +int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, + const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size,SSL_COMP **comp) { int i; + SSL_CIPHER *c; + c=s->cipher; if (c == NULL) return(0); + if (comp != NULL) + { + SSL_COMP ctmp; +#ifndef OPENSSL_NO_COMP + load_builtin_compressions(); +#endif + + *comp=NULL; + ctmp.id=s->compress_meth; + if (ssl_comp_methods != NULL) + { + i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp); + if (i >= 0) + *comp=sk_SSL_COMP_value(ssl_comp_methods,i); + else + *comp=NULL; + } + } - switch (c->algorithms & SSL_ENC_MASK) + if ((enc == NULL) || (md == NULL)) return(0); + + switch (c->algorithm_enc) { case SSL_DES: i=SSL_ENC_DES_IDX; @@ -204,6 +480,23 @@ EVP_MD **md; case SSL_eNULL: i=SSL_ENC_NULL_IDX; break; + case SSL_AES128: + i=SSL_ENC_AES128_IDX; + break; + case SSL_AES256: + i=SSL_ENC_AES256_IDX; + break; + case SSL_CAMELLIA128: + i=SSL_ENC_CAMELLIA128_IDX; + break; + case SSL_CAMELLIA256: + i=SSL_ENC_CAMELLIA256_IDX; + break; + case SSL_eGOST2814789CNT: + i=SSL_ENC_GOST89_IDX; + break; + case SSL_SEED: + i=SSL_ENC_SEED_IDX; break; default: i= -1; @@ -220,355 +513,954 @@ EVP_MD **md; *enc=ssl_cipher_methods[i]; } - switch (c->algorithms & SSL_MAC_MASK) + switch (c->algorithm_mac) { case SSL_MD5: i=SSL_MD_MD5_IDX; break; - case SSL_SHA0: - i=SSL_MD_SHA0_IDX; - break; case SSL_SHA1: i=SSL_MD_SHA1_IDX; break; + case SSL_GOST94: + i = SSL_MD_GOST94_IDX; + break; + case SSL_GOST89MAC: + i = SSL_MD_GOST89MAC_IDX; + break; default: i= -1; break; } if ((i < 0) || (i > SSL_MD_NUM_IDX)) - *md=NULL; + { + *md=NULL; + if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef; + if (mac_secret_size!=NULL) *mac_secret_size = 0; + + } else + { *md=ssl_digest_methods[i]; + if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i]; + if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i]; + } - if ((*enc != NULL) && (*md != NULL)) + if ((*enc != NULL) && (*md != NULL) && (!mac_pkey_type||*mac_pkey_type != NID_undef)) return(1); else return(0); } -STACK *ssl_create_cipher_list(ssl_method,cipher_list,cipher_list_by_id,str) -SSL_METHOD *ssl_method; -STACK **cipher_list,**cipher_list_by_id; -char *str; - { - SSL_CIPHER *c; - char *l; - STACK *ret=NULL,*ok=NULL; -#define CL_BUF 40 - char buf[CL_BUF]; - char *tmp_str=NULL; - unsigned long mask,algorithms,ma; - char *start; - int i,j,k,num=0,ch,multi; - unsigned long al; - STACK *ca_list=NULL; - STACK *c_list=NULL; - int old_x,old_y,current_x,num_x; - CIPHER_CHOICE *ops=NULL; - SSL_CIPHER c_tmp,*cp; - - if (str == NULL) return(NULL); - - if (strncmp(str,"DEFAULT",7) == 0) - { - i=strlen(str)+2+strlen(SSL_DEFAULT_CIPHER_LIST); - if ((tmp_str=Malloc(i)) == NULL) - { - SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); - goto err; - } - strcpy(tmp_str,SSL_DEFAULT_CIPHER_LIST); - strcat(tmp_str,&(str[7])); - str=tmp_str; +int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md) +{ + if (idx <0||idx>=SSL_MD_NUM_IDX) + { + return 0; } - if (init_ciphers) load_ciphers(); + if (ssl_handshake_digest_flag[idx]==0) return 0; + *mask = ssl_handshake_digest_flag[idx]; + *md = ssl_digest_methods[idx]; + return 1; +} - num=ssl_method->num_ciphers(); +#define ITEM_SEP(a) \ + (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) - if ((ret=(STACK *)sk_new(NULL)) == NULL) goto err; - if ((c_list=(STACK *)sk_new(NULL)) == NULL) goto err; - if ((ca_list=(STACK *)sk_new(cmp_by_name)) == NULL) goto err; +static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, + CIPHER_ORDER **tail) + { + if (curr == *tail) return; + if (curr == *head) + *head=curr->next; + if (curr->prev != NULL) + curr->prev->next=curr->next; + if (curr->next != NULL) + curr->next->prev=curr->prev; + (*tail)->next=curr; + curr->prev= *tail; + curr->next=NULL; + *tail=curr; + } + +static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, + CIPHER_ORDER **tail) + { + if (curr == *head) return; + if (curr == *tail) + *tail=curr->prev; + if (curr->next != NULL) + curr->next->prev=curr->prev; + if (curr->prev != NULL) + curr->prev->next=curr->next; + (*head)->prev=curr; + curr->next= *head; + curr->prev=NULL; + *head=curr; + } - mask =SSL_kFZA; -#ifdef NO_RSA - mask|=SSL_aRSA|SSL_kRSA; +static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl) + { + *mkey = 0; + *auth = 0; + *enc = 0; + *mac = 0; + *ssl = 0; + +#ifdef OPENSSL_NO_RSA + *mkey |= SSL_kRSA; + *auth |= SSL_aRSA; #endif -#ifdef NO_DSA - mask|=SSL_aDSS; +#ifdef OPENSSL_NO_DSA + *auth |= SSL_aDSS; #endif -#ifdef NO_DH - mask|=SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH; + *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */ + *auth |= SSL_aDH; +#ifdef OPENSSL_NO_DH + *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH; + *auth |= SSL_aDH; #endif - -#ifndef SSL_ALLOW_ENULL - mask|=SSL_eNULL; +#ifdef OPENSSL_NO_KRB5 + *mkey |= SSL_kKRB5; + *auth |= SSL_aKRB5; +#endif +#ifdef OPENSSL_NO_ECDSA + *auth |= SSL_aECDSA; +#endif +#ifdef OPENSSL_NO_ECDH + *mkey |= SSL_kECDHe|SSL_kECDHr; + *auth |= SSL_aECDH; +#endif +#ifdef OPENSSL_NO_PSK + *mkey |= SSL_kPSK; + *auth |= SSL_aPSK; #endif + /* Check for presence of GOST 34.10 algorithms, and if they + * do not present, disable appropriate auth and key exchange */ + if (!get_optional_pkey_id("gost94")) { + *auth |= SSL_aGOST94; + } + if (!get_optional_pkey_id("gost2001")) { + *auth |= SSL_aGOST01; + } + /* Disable GOST key exchange if no GOST signature algs are available * */ + if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) { + *mkey |= SSL_kGOST; + } +#ifdef SSL_FORBID_ENULL + *enc |= SSL_eNULL; +#endif + + + + *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0; + *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0; + *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0; + *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0; + *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0; + *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0; + *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0; + *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0; + *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0; + *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0; + *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0; + + *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0; + *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0; + *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0; + *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0; - mask|=(ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL)?SSL_DES :0; - mask|=(ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL)?SSL_3DES:0; - mask|=(ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL)?SSL_RC4 :0; - mask|=(ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL)?SSL_RC2 :0; - mask|=(ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL)?SSL_IDEA:0; - mask|=(ssl_cipher_methods[SSL_ENC_eFZA_IDX] == NULL)?SSL_eFZA:0; + } - mask|=(ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL)?SSL_MD5 :0; - mask|=(ssl_digest_methods[SSL_MD_SHA0_IDX] == NULL)?SSL_SHA0:0; - mask|=(ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL)?SSL_SHA1:0; +static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, + int num_of_ciphers, + unsigned long disabled_mkey, unsigned long disabled_auth, + unsigned long disabled_enc, unsigned long disabled_mac, + unsigned long disabled_ssl, + CIPHER_ORDER *co_list, + CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) + { + int i, co_list_num; + SSL_CIPHER *c; + + /* + * We have num_of_ciphers descriptions compiled in, depending on the + * method selected (SSLv2 and/or SSLv3, TLSv1 etc). + * These will later be sorted in a linked list with at most num + * entries. + */ /* Get the initial list of ciphers */ - for (i=0; iget_cipher((unsigned int)i); + c = ssl_method->get_cipher(i); /* drop those that use any of that is not available */ - if ((c != NULL) && c->valid && !(c->algorithms & mask)) + if ((c != NULL) && c->valid && + !(c->algorithm_mkey & disabled_mkey) && + !(c->algorithm_auth & disabled_auth) && + !(c->algorithm_enc & disabled_enc) && + !(c->algorithm_mac & disabled_mac) && + !(c->algorithm_ssl & disabled_ssl)) { - if (!sk_push(c_list,(char *)c)) goto err; + co_list[co_list_num].cipher = c; + co_list[co_list_num].next = NULL; + co_list[co_list_num].prev = NULL; + co_list[co_list_num].active = 0; + co_list_num++; +#ifdef KSSL_DEBUG + printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth); +#endif /* KSSL_DEBUG */ + /* if (!sk_push(ca_list,(char *)c)) goto err; + */ } } - /* special case */ - cipher_aliases[0].algorithms= ~mask; + /* + * Prepare linked list from list entries + */ + if (co_list_num > 0) + { + co_list[0].prev = NULL; + + if (co_list_num > 1) + { + co_list[0].next = &co_list[1]; + + for (i = 1; i < co_list_num - 1; i++) + { + co_list[i].prev = &co_list[i - 1]; + co_list[i].next = &co_list[i + 1]; + } + + co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; + } + + co_list[co_list_num - 1].next = NULL; + + *head_p = &co_list[0]; + *tail_p = &co_list[co_list_num - 1]; + } + } - /* get the aliases */ - k=sizeof(cipher_aliases)/sizeof(SSL_CIPHER); - for (j=0; jcipher; + ca_curr++; + ciph_curr = ciph_curr->next; + } + + /* + * Now we add the available ones from the cipher_aliases[] table. + * They represent either one or more algorithms, some of which + * in any affected category must be supported (set in enabled_mask), + * or represent a cipher strength value (will be added in any case because algorithms=0). + */ + for (i = 0; i < num_of_group_aliases; i++) { - al=cipher_aliases[j].algorithms; - /* Drop those that are not relevent */ - if ((al & mask) == al) continue; - if (!sk_push(ca_list,(char *)&(cipher_aliases[j]))) goto err; + unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey; + unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth; + unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc; + unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac; + unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl; + + if (algorithm_mkey) + if ((algorithm_mkey & mask_mkey) == 0) + continue; + + if (algorithm_auth) + if ((algorithm_auth & mask_auth) == 0) + continue; + + if (algorithm_enc) + if ((algorithm_enc & mask_enc) == 0) + continue; + + if (algorithm_mac) + if ((algorithm_mac & mask_mac) == 0) + continue; + + if (algorithm_ssl) + if ((algorithm_ssl & mask_ssl) == 0) + continue; + + *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); + ca_curr++; + } + + *ca_curr = NULL; /* end of list */ + } + +static void ssl_cipher_apply_rule(unsigned long cipher_id, + unsigned long alg_mkey, unsigned long alg_auth, + unsigned long alg_enc, unsigned long alg_mac, + unsigned long alg_ssl, + unsigned long algo_strength, + int rule, int strength_bits, + CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) + { + CIPHER_ORDER *head, *tail, *curr, *curr2, *last; + SSL_CIPHER *cp; + int reverse = 0; + +#ifdef CIPHER_DEBUG + printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n", + rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, strength_bits); +#endif + + if (rule == CIPHER_DEL) + reverse = 1; /* needed to maintain sorting between currently deleted ciphers */ + + head = *head_p; + tail = *tail_p; + + if (reverse) + { + curr = tail; + last = head; + } + else + { + curr = head; + last = tail; + } + + curr2 = curr; + for (;;) + { + if ((curr == NULL) || (curr == last)) break; + curr = curr2; + curr2 = reverse ? curr->prev : curr->next; + + cp = curr->cipher; + + /* + * Selection criteria is either the value of strength_bits + * or the algorithms used. + */ + if (strength_bits >= 0) + { + if (strength_bits != cp->strength_bits) + continue; + } + else + { +#ifdef CIPHER_DEBUG + printf("\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n", cp->name, cp->algorithm_mkey, cp->algorithm_auth, cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, cp->algo_strength); +#endif + + if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) + continue; + if (alg_auth && !(alg_auth & cp->algorithm_auth)) + continue; + if (alg_enc && !(alg_enc & cp->algorithm_enc)) + continue; + if (alg_mac && !(alg_mac & cp->algorithm_mac)) + continue; + if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) + continue; + if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength)) + continue; + if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) + continue; + } + +#ifdef CIPHER_DEBUG + printf("Action = %d\n", rule); +#endif + + /* add the cipher if it has not been added yet. */ + if (rule == CIPHER_ADD) + { + /* reverse == 0 */ + if (!curr->active) + { + ll_append_tail(&head, curr, &tail); + curr->active = 1; + } + } + /* Move the added cipher to this location */ + else if (rule == CIPHER_ORD) + { + /* reverse == 0 */ + if (curr->active) + { + ll_append_tail(&head, curr, &tail); + } + } + else if (rule == CIPHER_DEL) + { + /* reverse == 1 */ + if (curr->active) + { + /* most recently deleted ciphersuites get best positions + * for any future CIPHER_ADD (note that the CIPHER_DEL loop + * works in reverse to maintain the order) */ + ll_append_head(&head, curr, &tail); + curr->active = 0; + } + } + else if (rule == CIPHER_KILL) + { + /* reverse == 0 */ + if (head == curr) + head = curr->next; + else + curr->prev->next = curr->next; + if (tail == curr) + tail = curr->prev; + curr->active = 0; + if (curr->next != NULL) + curr->next->prev = curr->prev; + if (curr->prev != NULL) + curr->prev->next = curr->next; + curr->next = NULL; + curr->prev = NULL; + } } - /* ca_list now holds a 'stack' of SSL_CIPHERS, some real, some - * 'aliases' */ + *head_p = head; + *tail_p = tail; + } + +static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, + CIPHER_ORDER **tail_p) + { + int max_strength_bits, i, *number_uses; + CIPHER_ORDER *curr; + + /* + * This routine sorts the ciphers with descending strength. The sorting + * must keep the pre-sorted sequence, so we apply the normal sorting + * routine as '+' movement to the end of the list. + */ + max_strength_bits = 0; + curr = *head_p; + while (curr != NULL) + { + if (curr->active && + (curr->cipher->strength_bits > max_strength_bits)) + max_strength_bits = curr->cipher->strength_bits; + curr = curr->next; + } - /* how many parameters are there? */ - num=1; - for (l=str; *l; l++) - if (*l == ':') num++; - ops=(CIPHER_CHOICE *)Malloc(sizeof(CIPHER_CHOICE)*num); - if (ops == NULL) goto err; - memset(ops,0,sizeof(CIPHER_CHOICE)*num); - for (i=0; iactive) + number_uses[curr->cipher->strength_bits]++; + curr = curr->next; + } + /* + * Go through the list of used strength_bits values in descending + * order. + */ + for (i = max_strength_bits; i >= 0; i--) + if (number_uses[i] > 0) + ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, tail_p); + + OPENSSL_free(number_uses); + return(1); + } +static int ssl_cipher_process_rulestr(const char *rule_str, + CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p, + SSL_CIPHER **ca_list) + { + unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength; + const char *l, *start, *buf; + int j, multi, found, rule, retval, ok, buflen; + unsigned long cipher_id = 0; + char ch; + + retval = 1; + l = rule_str; for (;;) { - ch= *l; + ch = *l; + + if (ch == '\0') + break; /* done */ if (ch == '-') - { j=CIPHER_DEL; l++; } + { rule = CIPHER_DEL; l++; } else if (ch == '+') - { j=CIPHER_ORDER; l++; } + { rule = CIPHER_ORD; l++; } else if (ch == '!') - { j=CIPHER_KILL; l++; } - else - { j=CIPHER_ADD; } + { rule = CIPHER_KILL; l++; } + else if (ch == '@') + { rule = CIPHER_SPECIAL; l++; } + else + { rule = CIPHER_ADD; } - if (*l == ':') + if (ITEM_SEP(ch)) { l++; continue; } - ops[current_x].type=j; - ops[current_x].algorithms=0; - ops[current_x].mask=0; + + alg_mkey = 0; + alg_auth = 0; + alg_enc = 0; + alg_mac = 0; + alg_ssl = 0; + algo_strength = 0; start=l; for (;;) { - ch= *l; - i=0; + ch = *l; + buf = l; + buflen = 0; +#ifndef CHARSET_EBCDIC while ( ((ch >= 'A') && (ch <= 'Z')) || ((ch >= '0') && (ch <= '9')) || ((ch >= 'a') && (ch <= 'z')) || (ch == '-')) +#else + while ( isalnum(ch) || (ch == '-')) +#endif { - buf[i]=ch; - ch= *(++l); - i++; - if (i >= (CL_BUF-2)) break; + ch = *(++l); + buflen++; } - buf[i]='\0'; - if (ch != '\0') l++; - /* check for multi-part specification */ - multi=(ch == '+')?1:0; + if (buflen == 0) + { + /* + * We hit something we cannot deal with, + * it is no command or separator nor + * alphanumeric, so we call this an error. + */ + SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, + SSL_R_INVALID_COMMAND); + retval = found = 0; + l++; + break; + } - c_tmp.name=buf; - j=sk_find(ca_list,(char *)&c_tmp); - if (j < 0) + if (rule == CIPHER_SPECIAL) { - if (ch == '\0') + found = 0; /* unused -- avoid compiler warning */ + break; /* special treatment */ + } + + /* check for multi-part specification */ + if (ch == '+') + { + multi=1; + l++; + } + else + multi=0; + + /* + * Now search for the cipher alias in the ca_list. Be careful + * with the strncmp, because the "buflen" limitation + * will make the rule "ADH:SOME" and the cipher + * "ADH-MY-CIPHER" look like a match for buflen=3. + * So additionally check whether the cipher name found + * has the correct length. We can save a strlen() call: + * just checking for the '\0' at the right place is + * sufficient, we have to strncmp() anyway. (We cannot + * use strcmp(), because buf is not '\0' terminated.) + */ + j = found = 0; + cipher_id = 0; + while (ca_list[j]) + { + if (!strncmp(buf, ca_list[j]->name, buflen) && + (ca_list[j]->name[buflen] == '\0')) + { + found = 1; break; + } else - continue; + j++; } - cp=(SSL_CIPHER *)sk_value(ca_list,j); - ops[current_x].algorithms|=cp->algorithms; - /* We add the SSL_SSL_MASK so we can match the - * SSLv2 and SSLv3 versions of RC4-MD5 */ - ops[current_x].mask|=cp->mask; - if (!multi) break; - } - current_x++; - if (ch == '\0') break; - } - - num_x=current_x; - current_x=0; - -#ifdef CIPHER_DEBUG - printf("<--->\n"); -#endif + if (!found) + break; /* ignore this entry */ - for (i=0; iname); -#endif - for (j=0; jalgorithms; -#ifdef CIPHER_DEBUG - printf(" %s %08lX&%08lX==0 || %08lX != %08lX \n", - cp->name,ops[j].mask,cp->algorithms,ma,algorithms); -#endif - if ((ma == 0) || ((ma & algorithms) != ma)) + if (ca_list[j]->algorithm_mkey) { - continue; + if (alg_mkey) + { + alg_mkey &= ca_list[j]->algorithm_mkey; + if (!alg_mkey) { found = 0; break; } + } + else + alg_mkey = ca_list[j]->algorithm_mkey; } - k=ops[j].type; -#ifdef CIPHER_DEBUG - printf(">>%s\n",cp->name); -#endif - /* add the cipher if it has not been added yet. */ - if (k == CIPHER_ADD) + if (ca_list[j]->algorithm_auth) { - if (old_x < 0) + if (alg_auth) { - old_x=j; - old_y=sk_num(ops[j].order); - sk_push(ops[j].order,(char *)cp); + alg_auth &= ca_list[j]->algorithm_auth; + if (!alg_auth) { found = 0; break; } } + else + alg_auth = ca_list[j]->algorithm_auth; } - /* Move the added cipher to this location */ - else if (k == CIPHER_ORDER) + + if (ca_list[j]->algorithm_enc) { - if (old_x >= 0) + if (alg_enc) { - sk_value(ops[old_x].order,old_y)=NULL; - old_y=sk_num(ops[j].order); - sk_push(ops[j].order,(char *)cp); - old_x=j; + alg_enc &= ca_list[j]->algorithm_enc; + if (!alg_enc) { found = 0; break; } } + else + alg_enc = ca_list[j]->algorithm_enc; } - /* Remove added cipher */ - else if ((k == CIPHER_DEL) || (k == CIPHER_KILL)) + + if (ca_list[j]->algorithm_mac) { - if (old_x >= 0) + if (alg_mac) { - sk_value(ops[old_x].order,old_y)=NULL; - old_x= -1; + alg_mac &= ca_list[j]->algorithm_mac; + if (!alg_mac) { found = 0; break; } } - if (k == CIPHER_KILL) - break; + else + alg_mac = ca_list[j]->algorithm_mac; + } + + if (ca_list[j]->algo_strength & SSL_EXP_MASK) + { + if (algo_strength & SSL_EXP_MASK) + { + algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK; + if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; } + } + else + algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK; } - } - } - for (i=0; ialgo_strength & SSL_STRONG_MASK) { - sk_push(ret,(char *)cp); -#ifdef CIPHER_DEBUG - printf("<%s>\n",cp->name); -#endif + if (algo_strength & SSL_STRONG_MASK) + { + algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK; + if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; } + } + else + algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK; + } + + if (ca_list[j]->valid) + { + /* explicit ciphersuite found; its protocol version + * does not become part of the search pattern!*/ + + cipher_id = ca_list[j]->id; } + else + { + /* not an explicit ciphersuite; only in this case, the + * protocol version is considered part of the search pattern */ + + if (ca_list[j]->algorithm_ssl) + { + if (alg_ssl) + { + alg_ssl &= ca_list[j]->algorithm_ssl; + if (!alg_ssl) { found = 0; break; } + } + else + alg_ssl = ca_list[j]->algorithm_ssl; + } + } + + if (!multi) break; + } + + /* + * Ok, we have the rule, now apply it + */ + if (rule == CIPHER_SPECIAL) + { /* special command */ + ok = 0; + if ((buflen == 8) && + !strncmp(buf, "STRENGTH", 8)) + ok = ssl_cipher_strength_sort(head_p, tail_p); + else + SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, + SSL_R_INVALID_COMMAND); + if (ok == 0) + retval = 0; + /* + * We do not support any "multi" options + * together with "@", so throw away the + * rest of the command, if any left, until + * end or ':' is found. + */ + while ((*l != '\0') && !ITEM_SEP(*l)) + l++; + } + else if (found) + { + ssl_cipher_apply_rule(cipher_id, + alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, + rule, -1, head_p, tail_p); + } + else + { + while ((*l != '\0') && !ITEM_SEP(*l)) + l++; } + if (*l == '\0') break; /* done */ + } + + return(retval); + } + +STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, + STACK_OF(SSL_CIPHER) **cipher_list, + STACK_OF(SSL_CIPHER) **cipher_list_by_id, + const char *rule_str) + { + int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; + unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl; + STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; + const char *rule_p; + CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; + SSL_CIPHER **ca_list = NULL; + + /* + * Return with error if nothing to do. + */ + if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) + return NULL; + + /* + * To reduce the work to do we only want to process the compiled + * in algorithms, so we first get the mask of disabled ciphers. + */ + ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl); + + /* + * Now we have to collect the available ciphers from the compiled + * in ciphers. We cannot get more than the number compiled in, so + * it is used for allocation. + */ + num_of_ciphers = ssl_method->num_ciphers(); +#ifdef KSSL_DEBUG + printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers); +#endif /* KSSL_DEBUG */ + co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers); + if (co_list == NULL) + { + SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); + return(NULL); /* Failure */ } - if (cipher_list != NULL) + ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, + disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl, + co_list, &head, &tail); + + + /* Now arrange all ciphers by preference: */ + + /* Everything else being equal, prefer ephemeral ECDH over other key exchange mechanisms */ + ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); + ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); + + /* AES is our preferred symmetric cipher */ + ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); + + /* Temporarily enable everything else for sorting */ + ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); + + /* Low priority for MD5 */ + ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, &tail); + + /* Move anonymous ciphers to the end. Usually, these will remain disabled. + * (For applications that allow them, they aren't too bad, but we prefer + * authenticated ciphers.) */ + ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); + + /* Move ciphers without forward secrecy to the end */ + ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); + /* ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); */ + ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); + ssl_cipher_apply_rule(0, SSL_kPSK, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); + ssl_cipher_apply_rule(0, SSL_kKRB5, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); + + /* RC4 is sort-of broken -- move the the end */ + ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); + + /* Now sort by symmetric encryption strength. The above ordering remains + * in force within each class */ + if (!ssl_cipher_strength_sort(&head, &tail)) { - if (*cipher_list != NULL) - sk_free(*cipher_list); - *cipher_list=ret; + OPENSSL_free(co_list); + return NULL; } - if (cipher_list_by_id != NULL) + /* Now disable everything (maintaining the ordering!) */ + ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); + + + /* + * We also need cipher aliases for selecting based on the rule_str. + * There might be two types of entries in the rule_str: 1) names + * of ciphers themselves 2) aliases for groups of ciphers. + * For 1) we need the available ciphers and for 2) the cipher + * groups of cipher_aliases added together in one list (otherwise + * we would be happy with just the cipher_aliases table). + */ + num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER); + num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; + ca_list = + (SSL_CIPHER **)OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); + if (ca_list == NULL) { - if (*cipher_list_by_id != NULL) - sk_free(*cipher_list_by_id); - *cipher_list_by_id=sk_dup(ret); + OPENSSL_free(co_list); + SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); + return(NULL); /* Failure */ } + ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, + disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl, + head); + + /* + * If the rule_string begins with DEFAULT, apply the default rule + * before using the (possibly available) additional rules. + */ + ok = 1; + rule_p = rule_str; + if (strncmp(rule_str,"DEFAULT",7) == 0) + { + ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, + &head, &tail, ca_list); + rule_p += 7; + if (*rule_p == ':') + rule_p++; + } + + if (ok && (strlen(rule_p) > 0)) + ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list); - if ( (cipher_list_by_id == NULL) || - (*cipher_list_by_id == NULL) || - (cipher_list == NULL) || - (*cipher_list == NULL)) - goto err; - sk_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); + OPENSSL_free(ca_list); /* Not needed anymore */ - ok=ret; - ret=NULL; -err: - if (tmp_str) Free(tmp_str); - if (ops != NULL) + if (!ok) + { /* Rule processing failure */ + OPENSSL_free(co_list); + return(NULL); + } + + /* + * Allocate new "cipherstack" for the result, return with error + * if we cannot get one. + */ + if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) { - for (i=0; inext) + { + if (curr->active) + { + sk_SSL_CIPHER_push(cipherstack, curr->cipher); +#ifdef CIPHER_DEBUG + printf("<%s>\n",curr->cipher->name); +#endif + } } - if (ret != NULL) sk_free(ret); - if (c_list != NULL) sk_free(c_list); - if (ca_list != NULL) sk_free(ca_list); - return(ok); + OPENSSL_free(co_list); /* Not needed any longer */ + + tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); + if (tmp_cipher_list == NULL) + { + sk_SSL_CIPHER_free(cipherstack); + return NULL; + } + if (*cipher_list != NULL) + sk_SSL_CIPHER_free(*cipher_list); + *cipher_list = cipherstack; + if (*cipher_list_by_id != NULL) + sk_SSL_CIPHER_free(*cipher_list_by_id); + *cipher_list_by_id = tmp_cipher_list; + (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); + + return(cipherstack); } -char *SSL_CIPHER_description(cipher,buf,len) -SSL_CIPHER *cipher; -char *buf; -int len; +char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) { - int export; - char *ver,*exp; - char *kx,*au,*enc,*mac; - unsigned long alg,alg2; - static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; - - alg=cipher->algorithms; + int is_export,pkl,kl; + const char *ver,*exp_str; + const char *kx,*au,*enc,*mac; + unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2,alg_s; +#ifdef KSSL_DEBUG + static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n"; +#else + static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; +#endif /* KSSL_DEBUG */ + + alg_mkey = cipher->algorithm_mkey; + alg_auth = cipher->algorithm_auth; + alg_enc = cipher->algorithm_enc; + alg_mac = cipher->algorithm_mac; + alg_ssl = cipher->algorithm_ssl; + + alg_s=cipher->algo_strength; alg2=cipher->algorithm2; - export=(alg&SSL_EXP)?1:0; - exp=(export)?" export":""; - - if (alg & SSL_SSLV2) + is_export=SSL_C_IS_EXPORT(cipher); + pkl=SSL_C_EXPORT_PKEYLENGTH(cipher); + kl=SSL_C_EXPORT_KEYLENGTH(cipher); + exp_str=is_export?" export":""; + + if (alg_ssl & SSL_SSLV2) ver="SSLv2"; - else if (alg & SSL_SSLV3) + else if (alg_ssl & SSL_SSLV3) ver="SSLv3"; else ver="unknown"; - switch (alg&SSL_MKEY_MASK) + switch (alg_mkey) { case SSL_kRSA: - kx=(export)?"RSA(512)":"RSA"; + kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; break; case SSL_kDHr: kx="DH/RSA"; @@ -576,17 +1468,29 @@ int len; case SSL_kDHd: kx="DH/DSS"; break; - case SSL_kFZA: - kx="Fortezza"; + case SSL_kKRB5: + kx="KRB5"; break; case SSL_kEDH: - kx=(export)?"DH(512)":"DH"; + kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH"; + break; + case SSL_kECDHr: + kx="ECDH/RSA"; + break; + case SSL_kECDHe: + kx="ECDH/ECDSA"; + break; + case SSL_kEECDH: + kx="ECDH"; + break; + case SSL_kPSK: + kx="PSK"; break; default: kx="unknown"; } - switch (alg&SSL_AUTH_MASK) + switch (alg_auth) { case SSL_aRSA: au="RSA"; @@ -597,51 +1501,72 @@ int len; case SSL_aDH: au="DH"; break; - case SSL_aFZA: + case SSL_aKRB5: + au="KRB5"; + break; + case SSL_aECDH: + au="ECDH"; + break; case SSL_aNULL: au="None"; break; + case SSL_aECDSA: + au="ECDSA"; + break; + case SSL_aPSK: + au="PSK"; + break; default: au="unknown"; break; } - switch (alg&SSL_ENC_MASK) + switch (alg_enc) { case SSL_DES: - enc=export?"DES(40)":"DES(56)"; + enc=(is_export && kl == 5)?"DES(40)":"DES(56)"; break; case SSL_3DES: enc="3DES(168)"; break; case SSL_RC4: - enc=export?"RC4(40)":((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); + enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)") + :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); break; case SSL_RC2: - enc=export?"RC2(40)":"RC2(128)"; + enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)"; break; case SSL_IDEA: enc="IDEA(128)"; break; - case SSL_eFZA: - enc="Fortezza"; - break; case SSL_eNULL: enc="None"; break; + case SSL_AES128: + enc="AES(128)"; + break; + case SSL_AES256: + enc="AES(256)"; + break; + case SSL_CAMELLIA128: + enc="Camellia(128)"; + break; + case SSL_CAMELLIA256: + enc="Camellia(256)"; + break; + case SSL_SEED: + enc="SEED(128)"; + break; default: enc="unknown"; break; } - switch (alg&SSL_MAC_MASK) + switch (alg_mac) { case SSL_MD5: mac="MD5"; break; - case SSL_SHA0: - mac="SHA0"; - break; case SSL_SHA1: mac="SHA1"; break; @@ -652,24 +1577,29 @@ int len; if (buf == NULL) { - buf=Malloc(128); - if (buf == NULL) return("Malloc Error"); + len=128; + buf=OPENSSL_malloc(len); + if (buf == NULL) return("OPENSSL_malloc Error"); } else if (len < 128) return("Buffer too small"); - sprintf(buf,format,cipher->name,ver,kx,au,enc,mac,exp); +#ifdef KSSL_DEBUG + BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl); +#else + BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str); +#endif /* KSSL_DEBUG */ return(buf); } -char *SSL_CIPHER_get_version(c) -SSL_CIPHER *c; +char *SSL_CIPHER_get_version(const SSL_CIPHER *c) { int i; + if (c == NULL) return("(NONE)"); i=(int)(c->id>>24L); if (i == 3) - return("SSLv3"); + return("TLSv1/SSLv3"); else if (i == 2) return("SSLv2"); else @@ -677,45 +1607,115 @@ SSL_CIPHER *c; } /* return the actual cipher being used */ -char *SSL_CIPHER_get_name(c) -SSL_CIPHER *c; +const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) { if (c != NULL) return(c->name); return("(NONE)"); } -/* number of bits for symetric cipher */ -int SSL_CIPHER_get_bits(c,alg_bits) -SSL_CIPHER *c; -int *alg_bits; +/* number of bits for symmetric cipher */ +int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) { - int ret=0,a=0; - EVP_CIPHER *enc; - EVP_MD *md; + int ret=0; if (c != NULL) { - if (!ssl_cipher_get_evp(c,&enc,&md)) - return(0); + if (alg_bits != NULL) *alg_bits = c->alg_bits; + ret = c->strength_bits; + } + return(ret); + } - a=EVP_CIPHER_key_length(enc)*8; +SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) + { + SSL_COMP *ctmp; + int i,nn; - if (c->algorithms & SSL_EXP) - { - ret=40; - } - else - { - if (c->algorithm2 & SSL2_CF_8_BYTE_ENC) - ret=64; - else - ret=a; - } + if ((n == 0) || (sk == NULL)) return(NULL); + nn=sk_SSL_COMP_num(sk); + for (i=0; iid == n) + return(ctmp); } + return(NULL); + } - if (alg_bits != NULL) *alg_bits=a; - - return(ret); +#ifdef OPENSSL_NO_COMP +void *SSL_COMP_get_compression_methods(void) + { + return NULL; + } +int SSL_COMP_add_compression_method(int id, void *cm) + { + return 1; + } + +const char *SSL_COMP_get_name(const void *comp) + { + return NULL; + } +#else +STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) + { + load_builtin_compressions(); + return(ssl_comp_methods); + } + +int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) + { + SSL_COMP *comp; + + if (cm == NULL || cm->type == NID_undef) + return 1; + + /* According to draft-ietf-tls-compression-04.txt, the + compression number ranges should be the following: + + 0 to 63: methods defined by the IETF + 64 to 192: external party methods assigned by IANA + 193 to 255: reserved for private use */ + if (id < 193 || id > 255) + { + SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); + return 0; + } + + MemCheck_off(); + comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); + comp->id=id; + comp->method=cm; + load_builtin_compressions(); + if (ssl_comp_methods + && !sk_SSL_COMP_find(ssl_comp_methods,comp)) + { + OPENSSL_free(comp); + MemCheck_on(); + SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COMPRESSION_ID); + return(1); + } + else if ((ssl_comp_methods == NULL) + || !sk_SSL_COMP_push(ssl_comp_methods,comp)) + { + OPENSSL_free(comp); + MemCheck_on(); + SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE); + return(1); + } + else + { + MemCheck_on(); + return(0); + } } +const char *SSL_COMP_get_name(const COMP_METHOD *comp) + { + if (comp) + return comp->name; + return NULL; + } + +#endif