diff options
Diffstat (limited to 'app/openssl/ssl/ssl_ciph.c')
| -rw-r--r-- | app/openssl/ssl/ssl_ciph.c | 1792 |
1 files changed, 0 insertions, 1792 deletions
diff --git a/app/openssl/ssl/ssl_ciph.c b/app/openssl/ssl/ssl_ciph.c deleted file mode 100644 index e523a8f2..00000000 --- a/app/openssl/ssl/ssl_ciph.c +++ /dev/null @@ -1,1792 +0,0 @@ -/* ssl/ssl_ciph.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ -/* ==================================================================== - * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ -/* ==================================================================== - * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. - * ECC cipher suite support in OpenSSL originally developed by - * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. - */ -/* ==================================================================== - * Copyright 2005 Nokia. All rights reserved. - * - * The portions of the attached software ("Contribution") is developed by - * Nokia Corporation and is licensed pursuant to the OpenSSL open source - * license. - * - * The Contribution, originally written by Mika Kousa and Pasi Eronen of - * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites - * support (see RFC 4279) to OpenSSL. - * - * No patent licenses or other rights except those expressly stated in - * the OpenSSL open source license shall be deemed granted or received - * expressly, by implication, estoppel, or otherwise. - * - * No assurances are provided by Nokia that the Contribution does not - * infringe the patent or other intellectual property rights of any third - * party or that the license provides you with all the necessary rights - * to make use of the Contribution. - * - * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN - * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA - * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY - * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR - * OTHERWISE. - */ - -#include <stdio.h> -#include <openssl/objects.h> -#ifndef OPENSSL_NO_COMP -#include <openssl/comp.h> -#endif -#ifndef OPENSSL_NO_ENGINE -#include <openssl/engine.h> -#endif -#include "ssl_locl.h" - -#define SSL_ENC_DES_IDX 0 -#define SSL_ENC_3DES_IDX 1 -#define SSL_ENC_RC4_IDX 2 -#define SSL_ENC_RC2_IDX 3 -#define SSL_ENC_IDEA_IDX 4 -#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_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 - }; - -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_ORD 4 -#define CIPHER_SPECIAL 5 - -typedef struct cipher_order_st - { - const 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}, - /* 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; - } - -#else - -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) - { - ssl_cipher_methods[SSL_ENC_DES_IDX]= - EVP_get_cipherbyname(SN_des_cbc); - ssl_cipher_methods[SSL_ENC_3DES_IDX]= - EVP_get_cipherbyname(SN_des_ede3_cbc); - ssl_cipher_methods[SSL_ENC_RC4_IDX]= - 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_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; - } - - } -#ifndef OPENSSL_NO_COMP - -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; - 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 - - *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; - } - } - - if ((enc == NULL) || (md == NULL)) return(0); - - switch (c->algorithm_enc) - { - case SSL_DES: - i=SSL_ENC_DES_IDX; - break; - case SSL_3DES: - i=SSL_ENC_3DES_IDX; - break; - case SSL_RC4: - i=SSL_ENC_RC4_IDX; - break; - case SSL_RC2: - i=SSL_ENC_RC2_IDX; - break; - case SSL_IDEA: - i=SSL_ENC_IDEA_IDX; - break; - 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; - break; - } - - if ((i < 0) || (i > SSL_ENC_NUM_IDX)) - *enc=NULL; - else - { - if (i == SSL_ENC_NULL_IDX) - *enc=EVP_enc_null(); - else - *enc=ssl_cipher_methods[i]; - } - - switch (c->algorithm_mac) - { - case SSL_MD5: - i=SSL_MD_MD5_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; - 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) && (!mac_pkey_type||*mac_pkey_type != NID_undef)) - 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; - } - if (ssl_handshake_digest_flag[idx]==0) return 0; - *mask = ssl_handshake_digest_flag[idx]; - *md = ssl_digest_methods[idx]; - return 1; -} - -#define ITEM_SEP(a) \ - (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) - -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; - } - -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 OPENSSL_NO_DSA - *auth |= SSL_aDSS; -#endif - *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 -#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; - - } - -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; - const 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 */ - 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->algorithm_mkey & disabled_mkey) && - !(c->algorithm_auth & disabled_auth) && - !(c->algorithm_enc & disabled_enc) && - !(c->algorithm_mac & disabled_mac) && - !(c->algorithm_ssl & disabled_ssl)) - { - 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; - */ - } - } - - /* - * 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]; - } - } - -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; - 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 - */ - ciph_curr = head; - ca_curr = ca_list; - while (ciph_curr != NULL) - { - *ca_curr = ciph_curr->cipher; - 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++) - { - 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; - const 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; - } - } - - *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; - } - - 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)); - - /* - * Now find the strength_bits values actually used - */ - curr = *head_p; - while (curr != NULL) - { - if (curr->active) - 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, - const SSL_CIPHER **ca_list) - { - 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; - l = rule_str; - for (;;) - { - ch = *l; - - if (ch == '\0') - break; /* done */ - if (ch == '-') - { rule = CIPHER_DEL; l++; } - else if (ch == '+') - { rule = CIPHER_ORD; l++; } - else if (ch == '!') - { rule = CIPHER_KILL; l++; } - else if (ch == '@') - { rule = CIPHER_SPECIAL; l++; } - else - { rule = CIPHER_ADD; } - - if (ITEM_SEP(ch)) - { - l++; - continue; - } - - alg_mkey = 0; - alg_auth = 0; - alg_enc = 0; - alg_mac = 0; - alg_ssl = 0; - algo_strength = 0; - - for (;;) - { - 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 - { - ch = *(++l); - buflen++; - } - - 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; - } - - if (rule == CIPHER_SPECIAL) - { - 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 - j++; - } - - if (!found) - break; /* ignore this entry */ - - 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; - } - - /* - * 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; - const 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 */ - } - - 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. - * 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 = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); - if (ca_list == NULL) - { - 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); - - OPENSSL_free((void *)ca_list); /* Not needed anymore */ - - 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) - { - OPENSSL_free(co_list); - return(NULL); - } - - /* - * The cipher selection for the list is done. The ciphers are added - * to the resulting precedence to the STACK_OF(SSL_CIPHER). - */ - for (curr = head; curr != NULL; curr = curr->next) - { - if (curr->active) - { - sk_SSL_CIPHER_push(cipherstack, curr->cipher); -#ifdef CIPHER_DEBUG - printf("<%s>\n",curr->cipher->name); -#endif - } - } - 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); - - sk_SSL_CIPHER_sort(*cipher_list_by_id); - return(cipherstack); - } - -char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) - { - 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; -#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; - - alg2=cipher->algorithm2; - - 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 & SSL_SSLV3) - ver="SSLv3"; - else - ver="unknown"; - - switch (alg_mkey) - { - case SSL_kRSA: - kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; - break; - case SSL_kDHr: - kx="DH/RSA"; - break; - case SSL_kDHd: - kx="DH/DSS"; - break; - 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; - default: - kx="unknown"; - } - - switch (alg_auth) - { - case SSL_aRSA: - au="RSA"; - break; - case SSL_aDSS: - au="DSS"; - break; - case SSL_aDH: - au="DH"; - break; - 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_enc) - { - case SSL_DES: - enc=(is_export && kl == 5)?"DES(40)":"DES(56)"; - break; - case SSL_3DES: - enc="3DES(168)"; - break; - case SSL_RC4: - enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)") - :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); - break; - case SSL_RC2: - enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)"; - break; - case SSL_IDEA: - enc="IDEA(128)"; - 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_mac) - { - case SSL_MD5: - mac="MD5"; - break; - case SSL_SHA1: - mac="SHA1"; - break; - default: - mac="unknown"; - break; - } - - if (buf == NULL) - { - len=128; - buf=OPENSSL_malloc(len); - if (buf == NULL) return("OPENSSL_malloc Error"); - } - else if (len < 128) - return("Buffer too small"); - -#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(const SSL_CIPHER *c) - { - int i; - - if (c == NULL) return("(NONE)"); - i=(int)(c->id>>24L); - if (i == 3) - return("TLSv1/SSLv3"); - else if (i == 2) - return("SSLv2"); - else - return("unknown"); - } - -/* return the actual cipher being used */ -const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) - { - if (c != NULL) - return(c->name); - return("(NONE)"); - } - -/* number of bits for symmetric cipher */ -int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) - { - int ret=0; - - if (c != NULL) - { - if (alg_bits != NULL) *alg_bits = c->alg_bits; - ret = c->strength_bits; - } - return(ret); - } - -/* return string version of key exchange algorithm */ -const char* SSL_CIPHER_authentication_method(const SSL_CIPHER* cipher) - { - switch (cipher->algorithm_mkey) - { - case SSL_kRSA: - return SSL_TXT_RSA; - case SSL_kDHr: - return SSL_TXT_DH "_" SSL_TXT_RSA; - case SSL_kDHd: - return SSL_TXT_DH "_" SSL_TXT_DSS; - case SSL_kEDH: - switch (cipher->algorithm_auth) - { - case SSL_aDSS: - return "DHE_" SSL_TXT_DSS; - case SSL_aRSA: - return "DHE_" SSL_TXT_RSA; - case SSL_aNULL: - return SSL_TXT_DH "_anon"; - default: - return "UNKNOWN"; - } - case SSL_kKRB5: - return SSL_TXT_KRB5; - case SSL_kECDHr: - return SSL_TXT_ECDH "_" SSL_TXT_RSA; - case SSL_kECDHe: - return SSL_TXT_ECDH "_" SSL_TXT_ECDSA; - case SSL_kEECDH: - switch (cipher->algorithm_auth) - { - case SSL_aECDSA: - return "ECDHE_" SSL_TXT_ECDSA; - case SSL_aRSA: - return "ECDHE_" SSL_TXT_RSA; - case SSL_aNULL: - return SSL_TXT_ECDH "_anon"; - default: - return "UNKNOWN"; - } - default: - return "UNKNOWN"; - } - } - -SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) - { - SSL_COMP *ctmp; - int i,nn; - - if ((n == 0) || (sk == NULL)) return(NULL); - nn=sk_SSL_COMP_num(sk); - for (i=0; i<nn; i++) - { - ctmp=sk_SSL_COMP_value(sk,i); - if (ctmp->id == n) - return(ctmp); - } - return(NULL); - } - -#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) >= 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(1); - } - else - { - MemCheck_on(); - return(0); - } - } - -const char *SSL_COMP_get_name(const COMP_METHOD *comp) - { - if (comp) - return comp->name; - return NULL; - } - -#endif |