X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_ciph.c;h=a5c417a9ed55ac713ffec5144e7f23087095d6e8;hp=a196d5e574eb15a4d2c3f47835a2829890ad9796;hb=7b6b246fd393cbe07bc1f0d456140efdff59f971;hpb=9f49524331938282722d81d887a9dcb11e711b82 diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c index a196d5e574..a5c417a9ed 100644 --- a/ssl/ssl_ciph.c +++ b/ssl/ssl_ciph.c @@ -55,10 +55,99 @@ * 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 +#ifndef OPENSSL_NO_COMP #include +#endif +#ifndef OPENSSL_NO_ENGINE +#include +#endif #include "ssl_locl.h" #define SSL_ENC_DES_IDX 0 @@ -66,21 +155,58 @@ #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 +#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_AES128GCM_IDX 12 +#define SSL_ENC_AES256GCM_IDX 13 +#define SSL_ENC_NUM_IDX 14 + static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ - NULL,NULL,NULL,NULL,NULL,NULL, + NULL,NULL,NULL,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_SHA1_IDX 1 -#define SSL_MD_NUM_IDX 2 +#define SSL_MD_GOST94_IDX 2 +#define SSL_MD_GOST89MAC_IDX 3 +#define SSL_MD_SHA256_IDX 4 +#define SSL_MD_SHA384_IDX 5 +/*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,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, + EVP_PKEY_HMAC,EVP_PKEY_HMAC + }; + +static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={ + 0,0,0,0,0,0 + }; + +static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={ + SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA, + SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256, + SSL_HANDSHAKE_MAC_SHA384 }; #define CIPHER_ADD 1 @@ -91,68 +217,153 @@ static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ typedef struct cipher_order_st { - SSL_CIPHER *cipher; + const SSL_CIPHER *cipher; int active; int dead; struct cipher_order_st *next,*prev; } CIPHER_ORDER; static const SSL_CIPHER cipher_aliases[]={ - /* Don't include eNULL unless specifically enabled */ - {0,SSL_TXT_ALL, 0,SSL_ALL & ~SSL_eNULL, SSL_ALL ,0,0,0,SSL_ALL,SSL_ALL}, /* must be first */ - {0,SSL_TXT_kKRB5,0,SSL_kKRB5,0,0,0,0,SSL_MKEY_MASK,0}, /* VRS Kerberos5 */ - {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,0,0,0,SSL_MKEY_MASK,0}, - {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,0,0,0,SSL_MKEY_MASK,0}, - {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,0,0,0,SSL_MKEY_MASK,0}, - {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,0,0,0,SSL_MKEY_MASK,0}, - {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,0,0,0,SSL_MKEY_MASK,0}, - {0,SSL_TXT_DH, 0,SSL_DH, 0,0,0,0,SSL_MKEY_MASK,0}, - {0,SSL_TXT_EDH, 0,SSL_EDH, 0,0,0,0,SSL_MKEY_MASK|SSL_AUTH_MASK,0}, - - {0,SSL_TXT_aKRB5,0,SSL_aKRB5,0,0,0,0,SSL_AUTH_MASK,0}, /* VRS Kerberos5 */ - {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,0,0,0,SSL_AUTH_MASK,0}, - {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,0,0,0,SSL_AUTH_MASK,0}, - {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,0,0,0,SSL_AUTH_MASK,0}, - {0,SSL_TXT_aNULL,0,SSL_aNULL,0,0,0,0,SSL_AUTH_MASK,0}, - {0,SSL_TXT_aDH, 0,SSL_aDH, 0,0,0,0,SSL_AUTH_MASK,0}, - {0,SSL_TXT_DSS, 0,SSL_DSS, 0,0,0,0,SSL_AUTH_MASK,0}, - - {0,SSL_TXT_DES, 0,SSL_DES, 0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_3DES,0,SSL_3DES, 0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_RC4, 0,SSL_RC4, 0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_RC2, 0,SSL_RC2, 0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_eNULL,0,SSL_eNULL,0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,0,0,0,SSL_ENC_MASK,0}, - - {0,SSL_TXT_MD5, 0,SSL_MD5, 0,0,0,0,SSL_MAC_MASK,0}, - {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,0,0,0,SSL_MAC_MASK,0}, - {0,SSL_TXT_SHA, 0,SSL_SHA, 0,0,0,0,SSL_MAC_MASK,0}, - - {0,SSL_TXT_NULL,0,SSL_NULL, 0,0,0,0,SSL_ENC_MASK,0}, - {0,SSL_TXT_KRB5,0,SSL_KRB5, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0}, - {0,SSL_TXT_RSA, 0,SSL_RSA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0}, - {0,SSL_TXT_ADH, 0,SSL_ADH, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0}, - {0,SSL_TXT_FZA, 0,SSL_FZA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK,0}, - - {0,SSL_TXT_SSLV2, 0,SSL_SSLV2, 0,0,0,0,SSL_SSL_MASK,0}, - {0,SSL_TXT_SSLV3, 0,SSL_SSLV3, 0,0,0,0,SSL_SSL_MASK,0}, - {0,SSL_TXT_TLSV1, 0,SSL_TLSV1, 0,0,0,0,SSL_SSL_MASK,0}, - - {0,SSL_TXT_EXP ,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK}, - {0,SSL_TXT_EXPORT,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK}, - {0,SSL_TXT_EXP40, 0, 0, SSL_EXP40, 0,0,0,0,SSL_STRONG_MASK}, - {0,SSL_TXT_EXP56, 0, 0, SSL_EXP56, 0,0,0,0,SSL_STRONG_MASK}, - {0,SSL_TXT_LOW, 0, 0, SSL_LOW, 0,0,0,0,SSL_STRONG_MASK}, - {0,SSL_TXT_MEDIUM,0, 0,SSL_MEDIUM, 0,0,0,0,SSL_STRONG_MASK}, - {0,SSL_TXT_HIGH, 0, 0, SSL_HIGH, 0,0,0,0,SSL_STRONG_MASK}, + /* "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}, + {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0}, + {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0}, + {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_kSRP,0, SSL_kSRP, 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}, + {0,SSL_TXT_SRP,0, SSL_kSRP,0,0,0,0,0,0,0,0}, + + + /* 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|SSL_AES128GCM,0,0,0,0,0,0}, + {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0}, + {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0}, + {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,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}, + {0,SSL_TXT_SHA256,0, 0,0,0,SSL_SHA256, 0,0,0,0,0}, + {0,SSL_TXT_SHA384,0, 0,0,0,SSL_SHA384, 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}, + {0,SSL_TXT_TLSV1_2,0, 0,0,0,0,SSL_TLSV1_2, 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}, + /* FIPS 140-2 approved ciphersuite */ + {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0}, }; +/* Search for public key algorithm with given name and + * return its pkey_id if it is available. Otherwise return 0 + */ +#ifdef OPENSSL_NO_ENGINE + +static int get_optional_pkey_id(const char *pkey_name) + { + const EVP_PKEY_ASN1_METHOD *ameth; + int pkey_id=0; + ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1); + if (ameth) + { + EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); + } + return pkey_id; + } -static int init_ciphers=1; +#else -static void load_ciphers(void) +static int get_optional_pkey_id(const char *pkey_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; + } + +#endif + +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]= @@ -161,38 +372,137 @@ static void load_ciphers(void) 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_cipher_methods[SSL_ENC_AES128GCM_IDX]= + EVP_get_cipherbyname(SN_aes_128_gcm); + ssl_cipher_methods[SSL_ENC_AES256GCM_IDX]= + EVP_get_cipherbyname(SN_aes_256_gcm); ssl_digest_methods[SSL_MD_MD5_IDX]= EVP_get_digestbyname(SN_md5); + ssl_mac_secret_size[SSL_MD_MD5_IDX]= + EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]); + OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0); 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]); + OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0); + 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]); + OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0); + } + 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; + } + + ssl_digest_methods[SSL_MD_SHA256_IDX]= + EVP_get_digestbyname(SN_sha256); + ssl_mac_secret_size[SSL_MD_SHA256_IDX]= + EVP_MD_size(ssl_digest_methods[SSL_MD_SHA256_IDX]); + ssl_digest_methods[SSL_MD_SHA384_IDX]= + EVP_get_digestbyname(SN_sha384); + ssl_mac_secret_size[SSL_MD_SHA384_IDX]= + EVP_MD_size(ssl_digest_methods[SSL_MD_SHA384_IDX]); + } +#ifndef OPENSSL_NO_COMP + +static int sk_comp_cmp(const SSL_COMP * const *a, + const SSL_COMP * const *b) + { + return((*a)->id-(*b)->id); } -int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc, - const EVP_MD **md, SSL_COMP **comp) +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); + } + } + sk_SSL_COMP_sort(ssl_comp_methods); + } + 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 use_etm) { int i; - SSL_CIPHER *c; + const 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 - if (s->compress_meth == 0) - *comp=NULL; - else if (ssl_comp_methods == NULL) + *comp=NULL; + ctmp.id=s->compress_meth; + if (ssl_comp_methods != NULL) { - /* bad */ - *comp=NULL; - } - else - { - - ctmp.id=s->compress_meth; i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp); if (i >= 0) *comp=sk_SSL_COMP_value(ssl_comp_methods,i); @@ -203,7 +513,7 @@ int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc, if ((enc == NULL) || (md == NULL)) return(0); - switch (c->algorithms & SSL_ENC_MASK) + switch (c->algorithm_enc) { case SSL_DES: i=SSL_ENC_DES_IDX; @@ -223,6 +533,30 @@ int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc, 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; + case SSL_AES128GCM: + i=SSL_ENC_AES128GCM_IDX; + break; + case SSL_AES256GCM: + i=SSL_ENC_AES256GCM_IDX; + break; default: i= -1; break; @@ -238,7 +572,7 @@ int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc, *enc=ssl_cipher_methods[i]; } - switch (c->algorithms & SSL_MAC_MASK) + switch (c->algorithm_mac) { case SSL_MD5: i=SSL_MD_MD5_IDX; @@ -246,21 +580,95 @@ int ssl_cipher_get_evp(SSL_SESSION *s, const EVP_CIPHER **enc, case SSL_SHA1: i=SSL_MD_SHA1_IDX; break; + case SSL_SHA256: + i=SSL_MD_SHA256_IDX; + break; + case SSL_SHA384: + i=SSL_MD_SHA384_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; + if (c->algorithm_mac == SSL_AEAD) + mac_pkey_type = NULL; + } 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 || (EVP_CIPHER_flags(*enc)&EVP_CIPH_FLAG_AEAD_CIPHER)) && + (!mac_pkey_type||*mac_pkey_type != NID_undef)) + { + const EVP_CIPHER *evp; + + if (use_etm) + return 1; - if ((*enc != NULL) && (*md != NULL)) + if (s->ssl_version>>8 != TLS1_VERSION_MAJOR || + s->ssl_version < TLS1_VERSION) + return 1; + +#ifdef OPENSSL_FIPS + if (FIPS_mode()) + return 1; +#endif + + if (c->algorithm_enc == SSL_RC4 && + c->algorithm_mac == SSL_MD5 && + (evp=EVP_get_cipherbyname("RC4-HMAC-MD5"))) + *enc = evp, *md = NULL; + else if (c->algorithm_enc == SSL_AES128 && + c->algorithm_mac == SSL_SHA1 && + (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1"))) + *enc = evp, *md = NULL; + else if (c->algorithm_enc == SSL_AES256 && + c->algorithm_mac == SSL_SHA1 && + (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1"))) + *enc = evp, *md = NULL; + else if (c->algorithm_enc == SSL_AES128 && + c->algorithm_mac == SSL_SHA256 && + (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256"))) + *enc = evp, *md = NULL; + else if (c->algorithm_enc == SSL_AES256 && + c->algorithm_mac == SSL_SHA256 && + (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256"))) + *enc = evp, *md = NULL; return(1); + } else return(0); } +int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md) +{ + if (idx <0||idx>=SSL_MD_NUM_IDX) + { + return 0; + } + *mask = ssl_handshake_digest_flag[idx]; + if (*mask) + *md = ssl_digest_methods[idx]; + else + *md = NULL; + return 1; +} + #define ITEM_SEP(a) \ (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) @@ -272,7 +680,7 @@ static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, *head=curr->next; if (curr->prev != NULL) curr->prev->next=curr->next; - if (curr->next != NULL) /* should always be true */ + if (curr->next != NULL) curr->next->prev=curr->prev; (*tail)->next=curr; curr->prev= *tail; @@ -280,47 +688,110 @@ static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, *tail=curr; } -static unsigned long ssl_cipher_get_disabled(void) +static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, + CIPHER_ORDER **tail) { - unsigned long mask; + 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; +#ifdef OPENSSL_NO_DH + *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH; + *auth |= SSL_aDH; #endif -#ifdef NO_KRB5 - mask |= SSL_kKRB5|SSL_aKRB5; +#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 +#ifdef OPENSSL_NO_SRP + *mkey |= SSL_kSRP; +#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 - mask |= SSL_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_AES128GCM_IDX] == NULL) ? SSL_AES128GCM:0; + *enc |= (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] == NULL) ? SSL_AES256GCM: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_SHA256_IDX] == NULL) ? SSL_SHA256:0; + *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384:0; + *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_SHA1_IDX] == NULL) ? SSL_SHA1:0; - - return(mask); } static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, - int num_of_ciphers, unsigned long mask, CIPHER_ORDER *list, - CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) + 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, list_num; - SSL_CIPHER *c; + int i, co_list_num; + const SSL_CIPHER *c; /* * We have num_of_ciphers descriptions compiled in, depending on the @@ -330,20 +801,28 @@ static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, */ /* Get the initial list of ciphers */ - list_num = 0; /* actual count of ciphers */ + co_list_num = 0; /* actual count of ciphers */ for (i = 0; i < num_of_ciphers; 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 && +#ifdef OPENSSL_FIPS + (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) && +#endif + !(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)) { - list[list_num].cipher = c; - list[list_num].next = NULL; - list[list_num].prev = NULL; - list[list_num].active = 0; - list_num++; + 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\n",i,c->name,c->id,c->algorithms); + 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; @@ -354,29 +833,45 @@ static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, /* * Prepare linked list from list entries */ - for (i = 1; i < list_num - 1; i++) - { - list[i].prev = &(list[i-1]); - list[i].next = &(list[i+1]); - } - if (list_num > 0) + if (co_list_num > 0) { - (*head_p) = &(list[0]); - (*head_p)->prev = NULL; - (*head_p)->next = &(list[1]); - (*tail_p) = &(list[list_num - 1]); - (*tail_p)->prev = &(list[list_num - 2]); - (*tail_p)->next = NULL; + 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]; } } -static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list, - int num_of_group_aliases, unsigned long mask, +static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, + int num_of_group_aliases, + unsigned long disabled_mkey, unsigned long disabled_auth, + unsigned long disabled_enc, unsigned long disabled_mac, + unsigned long disabled_ssl, CIPHER_ORDER *head) { CIPHER_ORDER *ciph_curr; - SSL_CIPHER **ca_curr; + const SSL_CIPHER **ca_curr; int i; + unsigned long mask_mkey = ~disabled_mkey; + unsigned long mask_auth = ~disabled_auth; + unsigned long mask_enc = ~disabled_enc; + unsigned long mask_mac = ~disabled_mac; + unsigned long mask_ssl = ~disabled_ssl; /* * First, add the real ciphers as already collected @@ -392,74 +887,121 @@ static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list, /* * Now we add the available ones from the cipher_aliases[] table. - * They represent either an algorithm, that must be fully - * supported (not match any bit in mask) or represent a cipher - * strength value (will be added in any case because algorithms=0). + * 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++) { - if ((i == 0) || /* always fetch "ALL" */ - !(cipher_aliases[i].algorithms & mask)) - { - *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); - ca_curr++; - } + 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 algorithms, unsigned long mask, - unsigned long algo_strength, unsigned long mask_strength, - int rule, int strength_bits, CIPHER_ORDER *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, *tail2; - SSL_CIPHER *cp; - unsigned long ma, ma_s; + CIPHER_ORDER *head, *tail, *curr, *curr2, *last; + const SSL_CIPHER *cp; + int reverse = 0; #ifdef CIPHER_DEBUG - printf("Applying rule %d with %08lx %08lx %08lx %08lx (%d)\n", - rule, algorithms, mask, algo_strength, mask_strength, - strength_bits); + 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 - curr = head = *head_p; - curr2 = head; - tail2 = tail = *tail_p; + 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 == tail2)) break; + if ((curr == NULL) || (curr == last)) break; curr = curr2; - curr2 = curr->next; + curr2 = reverse ? curr->prev : curr->next; cp = curr->cipher; /* - * Selection criteria is either the number of strength_bits - * or the algorithm used. + * Selection criteria is either the value of strength_bits + * or the algorithms used. */ - if (strength_bits == -1) + if (strength_bits >= 0) + { + if (strength_bits != cp->strength_bits) + continue; + } + else { - ma = mask & cp->algorithms; - ma_s = mask_strength & cp->algo_strength; - #ifdef CIPHER_DEBUG - printf("\nName: %s:\nAlgo = %08lx Algo_strength = %08lx\nMask = %08lx Mask_strength %08lx\n", cp->name, cp->algorithms, cp->algo_strength, mask, mask_strength); - printf("ma = %08lx ma_s %08lx, ma&algo=%08lx, ma_s&algos=%08lx\n", ma, ma_s, ma&algorithms, ma_s&algo_strength); + 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 - /* - * Select: if none of the mask bit was met from the - * cipher or not all of the bits were met, the - * selection does not apply. - */ - if (((ma == 0) && (ma_s == 0)) || - ((ma & algorithms) != ma) || - ((ma_s & algo_strength) != ma_s)) - continue; /* does not apply */ +#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL + if (cipher_id && cipher_id != cp->id) + continue; +#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; } - else if (strength_bits != cp->strength_bits) - continue; /* does not apply */ #ifdef CIPHER_DEBUG printf("Action = %d\n", rule); @@ -468,6 +1010,7 @@ static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask, /* 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); @@ -477,15 +1020,27 @@ static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask, /* 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) - curr->active = 0; + { + /* 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 @@ -506,8 +1061,8 @@ static void ssl_cipher_apply_rule(unsigned long algorithms, unsigned long mask, *tail_p = tail; } -static int ssl_cipher_strength_sort(CIPHER_ORDER *list, CIPHER_ORDER **head_p, - CIPHER_ORDER **tail_p) +static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, + CIPHER_ORDER **tail_p) { int max_strength_bits, i, *number_uses; CIPHER_ORDER *curr; @@ -529,10 +1084,10 @@ static int ssl_cipher_strength_sort(CIPHER_ORDER *list, CIPHER_ORDER **head_p, number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int)); if (!number_uses) - { + { SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE); return(0); - } + } memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int)); /* @@ -551,20 +1106,20 @@ static int ssl_cipher_strength_sort(CIPHER_ORDER *list, CIPHER_ORDER **head_p, */ for (i = max_strength_bits; i >= 0; i--) if (number_uses[i] > 0) - ssl_cipher_apply_rule(0, 0, 0, 0, CIPHER_ORD, i, - list, head_p, tail_p); + 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 *list, CIPHER_ORDER **head_p, - CIPHER_ORDER **tail_p, SSL_CIPHER **ca_list) + CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p, + const SSL_CIPHER **ca_list) { - unsigned long algorithms, mask, algo_strength, mask_strength; - const char *l, *start, *buf; + unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength; + const char *l, *buf; int j, multi, found, rule, retval, ok, buflen; + unsigned long cipher_id = 0; char ch; retval = 1; @@ -592,9 +1147,13 @@ static int ssl_cipher_process_rulestr(const char *rule_str, continue; } - algorithms = mask = algo_strength = mask_strength = 0; + alg_mkey = 0; + alg_auth = 0; + alg_enc = 0; + alg_mac = 0; + alg_ssl = 0; + algo_strength = 0; - start=l; for (;;) { ch = *l; @@ -604,9 +1163,9 @@ static int ssl_cipher_process_rulestr(const char *rule_str, while ( ((ch >= 'A') && (ch <= 'Z')) || ((ch >= '0') && (ch <= '9')) || ((ch >= 'a') && (ch <= 'z')) || - (ch == '-')) + (ch == '-') || (ch == '.')) #else - while ( isalnum(ch) || (ch == '-')) + while ( isalnum(ch) || (ch == '-') || (ch == '.')) #endif { ch = *(++l); @@ -650,13 +1209,15 @@ static int ssl_cipher_process_rulestr(const char *rule_str, * 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. + * sufficient, we have to strncmp() anyway. (We cannot + * use strcmp(), because buf is not '\0' terminated.) */ - j = found = 0; - while (ca_list[j]) + j = found = 0; + cipher_id = 0; + while (ca_list[j]) { - if ((ca_list[j]->name[buflen] == '\0') && - !strncmp(buf, ca_list[j]->name, buflen)) + if (!strncmp(buf, ca_list[j]->name, buflen) && + (ca_list[j]->name[buflen] == '\0')) { found = 1; break; @@ -664,14 +1225,100 @@ static int ssl_cipher_process_rulestr(const char *rule_str, else j++; } + if (!found) break; /* ignore this entry */ - algorithms |= ca_list[j]->algorithms; - mask |= ca_list[j]->mask; - algo_strength |= ca_list[j]->algo_strength; - mask_strength |= ca_list[j]->mask_strength; + if (ca_list[j]->algorithm_mkey) + { + if (alg_mkey) + { + alg_mkey &= ca_list[j]->algorithm_mkey; + if (!alg_mkey) { found = 0; break; } + } + else + alg_mkey = ca_list[j]->algorithm_mkey; + } + + if (ca_list[j]->algorithm_auth) + { + if (alg_auth) + { + alg_auth &= ca_list[j]->algorithm_auth; + if (!alg_auth) { found = 0; break; } + } + else + alg_auth = ca_list[j]->algorithm_auth; + } + + if (ca_list[j]->algorithm_enc) + { + if (alg_enc) + { + alg_enc &= ca_list[j]->algorithm_enc; + if (!alg_enc) { found = 0; break; } + } + else + alg_enc = ca_list[j]->algorithm_enc; + } + + if (ca_list[j]->algorithm_mac) + { + if (alg_mac) + { + alg_mac &= ca_list[j]->algorithm_mac; + if (!alg_mac) { found = 0; 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; + } + + if (ca_list[j]->algo_strength & SSL_STRONG_MASK) + { + 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; } @@ -683,8 +1330,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str, ok = 0; if ((buflen == 8) && !strncmp(buf, "STRENGTH", 8)) - ok = ssl_cipher_strength_sort(list, - head_p, tail_p); + ok = ssl_cipher_strength_sort(head_p, tail_p); else SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, SSL_R_INVALID_COMMAND); @@ -696,18 +1342,18 @@ static int ssl_cipher_process_rulestr(const char *rule_str, * rest of the command, if any left, until * end or ':' is found. */ - while ((*l != '\0') && ITEM_SEP(*l)) + while ((*l != '\0') && !ITEM_SEP(*l)) l++; } else if (found) { - ssl_cipher_apply_rule(algorithms, mask, - algo_strength, mask_strength, rule, -1, - list, head_p, tail_p); + 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)) + while ((*l != '\0') && !ITEM_SEP(*l)) l++; } if (*l == '\0') break; /* done */ @@ -715,31 +1361,95 @@ static int ssl_cipher_process_rulestr(const char *rule_str, return(retval); } +#ifndef OPENSSL_NO_EC +static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c, + const char **prule_str) + { + unsigned int suiteb_flags = 0, suiteb_comb2 = 0; + if (!strcmp(*prule_str, "SUITEB128")) + suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; + else if (!strcmp(*prule_str, "SUITEB128ONLY")) + suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY; + else if (!strcmp(*prule_str, "SUITEB128C2")) + { + suiteb_comb2 = 1; + suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; + } + else if (!strcmp(*prule_str, "SUITEB192")) + suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS; + + if (suiteb_flags) + { + c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS; + c->cert_flags |= suiteb_flags; + } + else + suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS; + + if (!suiteb_flags) + return 1; + /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */ + + if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) + { + if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) + SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, + SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE); + else + SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST, + SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE); + return 0; + } + + switch(suiteb_flags) + { + case SSL_CERT_FLAG_SUITEB_128_LOS: + if (suiteb_comb2) + *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; + else + *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384"; + break; + case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY: + *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256"; + break; + case SSL_CERT_FLAG_SUITEB_192_LOS: + *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; + break; + } + /* Set auto ECDH parameter determination */ + c->ecdh_tmp_auto = 1; + return 1; + } +#endif + 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) + const char *rule_str, CERT *c) { int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; - unsigned long disabled_mask; - STACK_OF(SSL_CIPHER) *cipherstack; + 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 *list = NULL, *head = NULL, *tail = NULL, *curr; - SSL_CIPHER **ca_list = NULL; + CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; + const SSL_CIPHER **ca_list = NULL; /* * Return with error if nothing to do. */ - if (rule_str == NULL) return(NULL); - - if (init_ciphers) load_ciphers(); + if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) + return NULL; +#ifndef OPENSSL_NO_EC + if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) + return NULL; +#endif /* * To reduce the work to do we only want to process the compiled * in algorithms, so we first get the mask of disabled ciphers. */ - disabled_mask = ssl_cipher_get_disabled(); + 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 @@ -750,15 +1460,59 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, #ifdef KSSL_DEBUG printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers); #endif /* KSSL_DEBUG */ - list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers); - if (list == NULL) + 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 */ } - ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, disabled_mask, - list, &head, &tail); + 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)) + { + OPENSSL_free(co_list); + return 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. @@ -770,16 +1524,16 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, */ 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); + ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); if (ca_list == NULL) { - OPENSSL_free(list); + 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_mask, - head); + 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 @@ -790,30 +1544,30 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, if (strncmp(rule_str,"DEFAULT",7) == 0) { ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, - list, &head, &tail, ca_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, list, &head, &tail, - ca_list); + ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list); - OPENSSL_free(ca_list); /* Not needed anymore */ + OPENSSL_free((void *)ca_list); /* Not needed anymore */ if (!ok) { /* Rule processing failure */ - OPENSSL_free(list); + 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) { - OPENSSL_free(list); + OPENSSL_free(co_list); return(NULL); } @@ -823,7 +1577,11 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, */ for (curr = head; curr != NULL; curr = curr->next) { +#ifdef OPENSSL_FIPS + if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS)) +#else if (curr->active) +#endif { sk_SSL_CIPHER_push(cipherstack, curr->cipher); #ifdef CIPHER_DEBUG @@ -831,82 +1589,61 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, #endif } } - OPENSSL_free(list); /* Not needed any longer */ - - /* - * The following passage is a little bit odd. If pointer variables - * were supplied to hold STACK_OF(SSL_CIPHER) return information, - * the old memory pointed to is free()ed. Then, however, the - * cipher_list entry will be assigned just a copy of the returned - * cipher stack. For cipher_list_by_id a copy of the cipher stack - * will be created. See next comment... - */ - if (cipher_list != NULL) - { - if (*cipher_list != NULL) - sk_SSL_CIPHER_free(*cipher_list); - *cipher_list = cipherstack; - } + OPENSSL_free(co_list); /* Not needed any longer */ - if (cipher_list_by_id != NULL) - { - if (*cipher_list_by_id != NULL) - sk_SSL_CIPHER_free(*cipher_list_by_id); - *cipher_list_by_id = sk_SSL_CIPHER_dup(cipherstack); - } - - /* - * Now it is getting really strange. If something failed during - * the previous pointer assignment or if one of the pointers was - * not requested, the error condition is met. That might be - * discussable. The strange thing is however that in this case - * the memory "ret" pointed to is "free()ed" and hence the pointer - * cipher_list becomes wild. The memory reserved for - * cipher_list_by_id however is not "free()ed" and stays intact. - */ - if ( (cipher_list_by_id == NULL) || - (*cipher_list_by_id == NULL) || - (cipher_list == NULL) || - (*cipher_list == NULL)) + tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); + if (tmp_cipher_list == NULL) { sk_SSL_CIPHER_free(cipherstack); - return(NULL); + return NULL; } - - sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); - + 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); + + sk_SSL_CIPHER_sort(*cipher_list_by_id); return(cipherstack); } -char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) +char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) { int is_export,pkl,kl; - char *ver,*exp; - char *kx,*au,*enc,*mac; - unsigned long alg,alg2,alg_s; + const char *ver,*exp_str; + const char *kx,*au,*enc,*mac; + unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2; #ifdef KSSL_DEBUG - static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx\n"; + static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n"; #else - static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; + static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; #endif /* KSSL_DEBUG */ - alg=cipher->algorithms; - alg_s=cipher->algo_strength; + 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; + alg2=cipher->algorithm2; is_export=SSL_C_IS_EXPORT(cipher); pkl=SSL_C_EXPORT_PKEYLENGTH(cipher); kl=SSL_C_EXPORT_KEYLENGTH(cipher); - exp=is_export?" export":""; - - if (alg & SSL_SSLV2) + 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 if (alg_ssl & SSL_TLSV1_2) + ver="TLSv1.2"; else ver="unknown"; - switch (alg&SSL_MKEY_MASK) + switch (alg_mkey) { case SSL_kRSA: kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; @@ -917,21 +1654,32 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) case SSL_kDHd: kx="DH/DSS"; break; - case SSL_kKRB5: /* VRS */ - case SSL_KRB5: /* VRS */ - kx="KRB5"; - break; - case SSL_kFZA: - kx="Fortezza"; + case SSL_kKRB5: + kx="KRB5"; break; case SSL_kEDH: 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; + case SSL_kSRP: + kx="SRP"; + break; default: kx="unknown"; } - switch (alg&SSL_AUTH_MASK) + switch (alg_auth) { case SSL_aRSA: au="RSA"; @@ -942,20 +1690,27 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) case SSL_aDH: au="DH"; break; - case SSL_aKRB5: /* VRS */ - case SSL_KRB5: /* VRS */ - au="KRB5"; - 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=(is_export && kl == 5)?"DES(40)":"DES(56)"; @@ -973,18 +1728,36 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) 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_AES128GCM: + enc="AESGCM(128)"; + break; + case SSL_AES256GCM: + enc="AESGCM(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"; @@ -992,6 +1765,15 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) case SSL_SHA1: mac="SHA1"; break; + case SSL_SHA256: + mac="SHA256"; + break; + case SSL_SHA384: + mac="SHA384"; + break; + case SSL_AEAD: + mac="AEAD"; + break; default: mac="unknown"; break; @@ -1007,14 +1789,14 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len) return("Buffer too small"); #ifdef KSSL_DEBUG - BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp,alg); + 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); + BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str); #endif /* KSSL_DEBUG */ return(buf); } -char *SSL_CIPHER_get_version(SSL_CIPHER *c) +char *SSL_CIPHER_get_version(const SSL_CIPHER *c) { int i; @@ -1029,7 +1811,7 @@ char *SSL_CIPHER_get_version(SSL_CIPHER *c) } /* return the actual cipher being used */ -const char *SSL_CIPHER_get_name(SSL_CIPHER *c) +const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) { if (c != NULL) return(c->name); @@ -1037,7 +1819,7 @@ const char *SSL_CIPHER_get_name(SSL_CIPHER *c) } /* number of bits for symmetric cipher */ -int SSL_CIPHER_get_bits(SSL_CIPHER *c, int *alg_bits) +int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) { int ret=0; @@ -1049,6 +1831,11 @@ int SSL_CIPHER_get_bits(SSL_CIPHER *c, int *alg_bits) return(ret); } +unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c) + { + return c->id; + } + SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) { SSL_COMP *ctmp; @@ -1065,42 +1852,134 @@ SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) return(NULL); } -static int sk_comp_cmp(const SSL_COMP * const *a, - const SSL_COMP * const *b) +#ifdef OPENSSL_NO_COMP +void *SSL_COMP_get_compression_methods(void) { - return((*a)->id-(*b)->id); + 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; - STACK_OF(SSL_COMP) *sk; 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; - if (ssl_comp_methods == NULL) - sk=ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp); - else - sk=ssl_comp_methods; - if ((sk == NULL) || !sk_SSL_COMP_push(sk,comp)) + load_builtin_compressions(); + if (ssl_comp_methods + && sk_SSL_COMP_find(ssl_comp_methods,comp) >= 0) + { + 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(0); + return(1); } else { MemCheck_on(); - return(1); + return(0); } } + +const char *SSL_COMP_get_name(const COMP_METHOD *comp) + { + if (comp) + return comp->name; + return NULL; + } +#endif +/* For a cipher return the index corresponding to the certificate type */ +int ssl_cipher_get_cert_index(const SSL_CIPHER *c) + { + unsigned long alg_k, alg_a; + + alg_k = c->algorithm_mkey; + alg_a = c->algorithm_auth; + + if (alg_k & (SSL_kECDHr|SSL_kECDHe)) + { + /* we don't need to look at SSL_kEECDH + * since no certificate is needed for + * anon ECDH and for authenticated + * EECDH, the check for the auth + * algorithm will set i correctly + * NOTE: For ECDH-RSA, we need an ECC + * not an RSA cert but for EECDH-RSA + * we need an RSA cert. Placing the + * checks for SSL_kECDH before RSA + * checks ensures the correct cert is chosen. + */ + return SSL_PKEY_ECC; + } + else if (alg_a & SSL_aECDSA) + return SSL_PKEY_ECC; + else if (alg_k & SSL_kDHr) + return SSL_PKEY_DH_RSA; + else if (alg_k & SSL_kDHd) + return SSL_PKEY_DH_DSA; + else if (alg_a & SSL_aDSS) + return SSL_PKEY_DSA_SIGN; + else if (alg_a & SSL_aRSA) + return SSL_PKEY_RSA_ENC; + else if (alg_a & SSL_aKRB5) + /* VRS something else here? */ + return -1; + else if (alg_a & SSL_aGOST94) + return SSL_PKEY_GOST94; + else if (alg_a & SSL_aGOST01) + return SSL_PKEY_GOST01; + return -1; + } + +const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr) + { + const SSL_CIPHER *c; + c = ssl->method->get_cipher_by_char(ptr); + if (c == NULL || c->valid == 0) + return NULL; + return c; + } + +const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr) + { + return ssl->method->get_cipher_by_char(ptr); + }