From 86c49b31af735796dfde37aa29473a30d36367db Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Sat, 23 Jul 2016 19:31:36 +0000 Subject: This commit was manufactured by cvs2git to create tag 'OPENBSD_6_0_BASE'. --- src/lib/libssl/ssl_ciph.c | 1798 --------------------------------------------- 1 file changed, 1798 deletions(-) delete mode 100644 src/lib/libssl/ssl_ciph.c (limited to 'src/lib/libssl/ssl_ciph.c') diff --git a/src/lib/libssl/ssl_ciph.c b/src/lib/libssl/ssl_ciph.c deleted file mode 100644 index 526d98e293..0000000000 --- a/src/lib/libssl/ssl_ciph.c +++ /dev/null @@ -1,1798 +0,0 @@ -/* $OpenBSD: ssl_ciph.c,v 1.86 2016/04/28 16:39:45 jsing Exp $ */ -/* 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 - -#include - -#ifndef OPENSSL_NO_ENGINE -#include -#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_IDEA_IDX 3 -#define SSL_ENC_NULL_IDX 4 -#define SSL_ENC_AES128_IDX 5 -#define SSL_ENC_AES256_IDX 6 -#define SSL_ENC_CAMELLIA128_IDX 7 -#define SSL_ENC_CAMELLIA256_IDX 8 -#define SSL_ENC_GOST89_IDX 9 -#define SSL_ENC_AES128GCM_IDX 10 -#define SSL_ENC_AES256GCM_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, 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 -#define SSL_MD_SHA256_IDX 4 -#define SSL_MD_SHA384_IDX 5 -#define SSL_MD_STREEBOG256_IDX 6 -#define SSL_MD_STREEBOG512_IDX 7 -/*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 -}; - -static int ssl_mac_pkey_id[SSL_MD_NUM_IDX] = { - EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_GOSTIMIT, - EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, -}; - -static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = { - 0, 0, 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, SSL_HANDSHAKE_MAC_STREEBOG256, - SSL_HANDSHAKE_MAC_STREEBOG512 -}; - -#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) */ - { - .name = SSL_TXT_ALL, - .algorithm_enc = ~SSL_eNULL, - }, - - /* "COMPLEMENTOFALL" */ - { - .name = SSL_TXT_CMPALL, - .algorithm_enc = SSL_eNULL, - }, - - /* - * "COMPLEMENTOFDEFAULT" - * (does *not* include ciphersuites not found in ALL!) - */ - { - .name = SSL_TXT_CMPDEF, - .algorithm_mkey = SSL_kDHE|SSL_kECDHE, - .algorithm_auth = SSL_aNULL, - .algorithm_enc = ~SSL_eNULL, - }, - - /* - * 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) - */ - { - .name = SSL_TXT_kRSA, - .algorithm_mkey = SSL_kRSA, - }, - { - .name = SSL_TXT_kEDH, - .algorithm_mkey = SSL_kDHE, - }, - { - .name = SSL_TXT_DH, - .algorithm_mkey = SSL_kDHE, - }, - - { - .name = SSL_TXT_kECDHr, - .algorithm_mkey = SSL_kECDHr, - }, - { - .name = SSL_TXT_kECDHe, - .algorithm_mkey = SSL_kECDHe, - }, - { - .name = SSL_TXT_kECDH, - .algorithm_mkey = SSL_kECDHr|SSL_kECDHe, - }, - { - .name = SSL_TXT_kEECDH, - .algorithm_mkey = SSL_kECDHE, - }, - { - .name = SSL_TXT_ECDH, - .algorithm_mkey = SSL_kECDHr|SSL_kECDHe|SSL_kECDHE, - }, - - { - .name = SSL_TXT_kGOST, - .algorithm_mkey = SSL_kGOST, - }, - - /* server authentication aliases */ - { - .name = SSL_TXT_aRSA, - .algorithm_auth = SSL_aRSA, - }, - { - .name = SSL_TXT_aDSS, - .algorithm_auth = SSL_aDSS, - }, - { - .name = SSL_TXT_DSS, - .algorithm_auth = SSL_aDSS, - }, - { - .name = SSL_TXT_aNULL, - .algorithm_auth = SSL_aNULL, - }, - { - .name = SSL_TXT_aECDH, - .algorithm_auth = SSL_aECDH, - }, - { - .name = SSL_TXT_aECDSA, - .algorithm_auth = SSL_aECDSA, - }, - { - .name = SSL_TXT_ECDSA, - .algorithm_auth = SSL_aECDSA, - }, - { - .name = SSL_TXT_aGOST01, - .algorithm_auth = SSL_aGOST01, - }, - { - .name = SSL_TXT_aGOST, - .algorithm_auth = SSL_aGOST01, - }, - - /* aliases combining key exchange and server authentication */ - { - .name = SSL_TXT_DHE, - .algorithm_mkey = SSL_kDHE, - .algorithm_auth = ~SSL_aNULL, - }, - { - .name = SSL_TXT_EDH, - .algorithm_mkey = SSL_kDHE, - .algorithm_auth = ~SSL_aNULL, - }, - { - .name = SSL_TXT_ECDHE, - .algorithm_mkey = SSL_kECDHE, - .algorithm_auth = ~SSL_aNULL, - }, - { - .name = SSL_TXT_EECDH, - .algorithm_mkey = SSL_kECDHE, - .algorithm_auth = ~SSL_aNULL, - }, - { - .name = SSL_TXT_NULL, - .algorithm_enc = SSL_eNULL, - }, - { - .name = SSL_TXT_RSA, - .algorithm_mkey = SSL_kRSA, - .algorithm_auth = SSL_aRSA, - }, - { - .name = SSL_TXT_ADH, - .algorithm_mkey = SSL_kDHE, - .algorithm_auth = SSL_aNULL, - }, - { - .name = SSL_TXT_AECDH, - .algorithm_mkey = SSL_kECDHE, - .algorithm_auth = SSL_aNULL, - }, - - /* symmetric encryption aliases */ - { - .name = SSL_TXT_DES, - .algorithm_enc = SSL_DES, - }, - { - .name = SSL_TXT_3DES, - .algorithm_enc = SSL_3DES, - }, - { - .name = SSL_TXT_RC4, - .algorithm_enc = SSL_RC4, - }, - { - .name = SSL_TXT_IDEA, - .algorithm_enc = SSL_IDEA, - }, - { - .name = SSL_TXT_eNULL, - .algorithm_enc = SSL_eNULL, - }, - { - .name = SSL_TXT_AES128, - .algorithm_enc = SSL_AES128|SSL_AES128GCM, - }, - { - .name = SSL_TXT_AES256, - .algorithm_enc = SSL_AES256|SSL_AES256GCM, - }, - { - .name = SSL_TXT_AES, - .algorithm_enc = SSL_AES, - }, - { - .name = SSL_TXT_AES_GCM, - .algorithm_enc = SSL_AES128GCM|SSL_AES256GCM, - }, - { - .name = SSL_TXT_CAMELLIA128, - .algorithm_enc = SSL_CAMELLIA128, - }, - { - .name = SSL_TXT_CAMELLIA256, - .algorithm_enc = SSL_CAMELLIA256, - }, - { - .name = SSL_TXT_CAMELLIA, - .algorithm_enc = SSL_CAMELLIA128|SSL_CAMELLIA256, - }, - { - .name = SSL_TXT_CHACHA20, - .algorithm_enc = SSL_CHACHA20POLY1305|SSL_CHACHA20POLY1305_OLD, - }, - - /* MAC aliases */ - { - .name = SSL_TXT_AEAD, - .algorithm_mac = SSL_AEAD, - }, - { - .name = SSL_TXT_MD5, - .algorithm_mac = SSL_MD5, - }, - { - .name = SSL_TXT_SHA1, - .algorithm_mac = SSL_SHA1, - }, - { - .name = SSL_TXT_SHA, - .algorithm_mac = SSL_SHA1, - }, - { - .name = SSL_TXT_GOST94, - .algorithm_mac = SSL_GOST94, - }, - { - .name = SSL_TXT_GOST89MAC, - .algorithm_mac = SSL_GOST89MAC, - }, - { - .name = SSL_TXT_SHA256, - .algorithm_mac = SSL_SHA256, - }, - { - .name = SSL_TXT_SHA384, - .algorithm_mac = SSL_SHA384, - }, - { - .name = SSL_TXT_STREEBOG256, - .algorithm_mac = SSL_STREEBOG256, - }, - { - .name = SSL_TXT_STREEBOG512, - .algorithm_mac = SSL_STREEBOG512, - }, - - /* protocol version aliases */ - { - .name = SSL_TXT_SSLV3, - .algorithm_ssl = SSL_SSLV3, - }, - { - .name = SSL_TXT_TLSV1, - .algorithm_ssl = SSL_TLSV1, - }, - { - .name = SSL_TXT_TLSV1_2, - .algorithm_ssl = SSL_TLSV1_2, - }, - - /* strength classes */ - { - .name = SSL_TXT_LOW, - .algo_strength = SSL_LOW, - }, - { - .name = SSL_TXT_MEDIUM, - .algo_strength = SSL_MEDIUM, - }, - { - .name = SSL_TXT_HIGH, - .algo_strength = SSL_HIGH, - }, -}; - -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); -#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_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); - 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]); - ssl_digest_methods[SSL_MD_STREEBOG256_IDX] = - EVP_get_digestbyname(SN_id_tc26_gost3411_2012_256); - ssl_mac_secret_size[SSL_MD_STREEBOG256_IDX] = - EVP_MD_size(ssl_digest_methods[SSL_MD_STREEBOG256_IDX]); - ssl_digest_methods[SSL_MD_STREEBOG512_IDX] = - EVP_get_digestbyname(SN_id_tc26_gost3411_2012_512); - ssl_mac_secret_size[SSL_MD_STREEBOG512_IDX] = - EVP_MD_size(ssl_digest_methods[SSL_MD_STREEBOG512_IDX]); -} - -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) -{ - const SSL_CIPHER *c; - int i; - - c = s->cipher; - if (c == NULL) - return (0); - - /* - * This function does not handle EVP_AEAD. - * See ssl_cipher_get_aead_evp instead. - */ - if (c->algorithm2 & SSL_CIPHER_ALGORITHM2_AEAD) - return(0); - - 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_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_AES128GCM: - i = SSL_ENC_AES128GCM_IDX; - break; - case SSL_AES256GCM: - i = SSL_ENC_AES256GCM_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_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; - case SSL_STREEBOG256: - i = SSL_MD_STREEBOG256_IDX; - break; - case SSL_STREEBOG512: - i = SSL_MD_STREEBOG512_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; - 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 (s->ssl_version >> 8 != TLS1_VERSION_MAJOR || - s->ssl_version < TLS1_VERSION) - return 1; - - 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; - return (1); - } else - return (0); -} - -/* - * ssl_cipher_get_evp_aead sets aead to point to the correct EVP_AEAD object - * for s->cipher. It returns 1 on success and 0 on error. - */ -int -ssl_cipher_get_evp_aead(const SSL_SESSION *s, const EVP_AEAD **aead) -{ - const SSL_CIPHER *c = s->cipher; - - *aead = NULL; - - if (c == NULL) - return 0; - if ((c->algorithm2 & SSL_CIPHER_ALGORITHM2_AEAD) == 0) - return 0; - - switch (c->algorithm_enc) { -#ifndef OPENSSL_NO_AES - case SSL_AES128GCM: - *aead = EVP_aead_aes_128_gcm(); - return 1; - case SSL_AES256GCM: - *aead = EVP_aead_aes_256_gcm(); - return 1; -#endif -#if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305) - case SSL_CHACHA20POLY1305: - *aead = EVP_aead_chacha20_poly1305(); - return 1; - case SSL_CHACHA20POLY1305_OLD: - *aead = EVP_aead_chacha20_poly1305_old(); - return 1; -#endif - default: - break; - } - 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) == ',')) - -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; - - /* - * Check for the availability of GOST 34.10 public/private key - * algorithms. If they are not available disable the associated - * authentication and key exchange algorithms. - */ - if (EVP_PKEY_meth_find(NID_id_GostR3410_2001) == NULL) { - *auth |= 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_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; - - *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_GOST89MAC : 0; - *mac |= (ssl_digest_methods[SSL_MD_STREEBOG256_IDX] == NULL) ? SSL_STREEBOG256 : 0; - *mac |= (ssl_digest_methods[SSL_MD_STREEBOG512_IDX] == NULL) ? SSL_STREEBOG512 : 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 (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++; - /* - 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, *next, *last; - const SSL_CIPHER *cp; - int reverse = 0; - - - if (rule == CIPHER_DEL) - reverse = 1; /* needed to maintain sorting between currently deleted ciphers */ - - head = *head_p; - tail = *tail_p; - - if (reverse) { - next = tail; - last = head; - } else { - next = head; - last = tail; - } - - curr = NULL; - for (;;) { - if (curr == last) - break; - curr = next; - next = 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 { - - 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_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) - continue; - } - - - /* 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 = calloc((max_strength_bits + 1), sizeof(int)); - if (!number_uses) { - SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE); - return (0); - } - - /* - * 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); - - 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; - unsigned long algo_strength; - int j, multi, found, rule, retval, ok, buflen; - unsigned long cipher_id = 0; - const char *l, *buf; - char ch; - - retval = 1; - l = rule_str; - for (;;) { - ch = *l; - - if (ch == '\0') - break; - - 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; - while (((ch >= 'A') && (ch <= 'Z')) || - ((ch >= '0') && (ch <= '9')) || - ((ch >= 'a') && (ch <= 'z')) || - (ch == '-') || (ch == '.')) { - 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) { - /* unused -- avoid compiler warning */ - found = 0; - /* special treatment */ - break; - } - - /* 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_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); -} - -static inline int -ssl_aes_is_accelerated(void) -{ -#if defined(__i386__) || defined(__x86_64__) - return ((OPENSSL_cpu_caps() & (1ULL << 57)) != 0); -#else - return (0); -#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) -{ - 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(); - co_list = reallocarray(NULL, num_of_ciphers, sizeof(CIPHER_ORDER)); - 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_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); - ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); - - if (ssl_aes_is_accelerated() == 1) { - /* - * We have hardware assisted AES - prefer AES as a symmetric - * cipher, with CHACHA20 second. - */ - ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, - CIPHER_ADD, -1, &head, &tail); - ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305, - 0, 0, 0, CIPHER_ADD, -1, &head, &tail); - ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305_OLD, - 0, 0, 0, CIPHER_ADD, -1, &head, &tail); - } else { - /* - * CHACHA20 is fast and safe on all hardware and is thus our - * preferred symmetric cipher, with AES second. - */ - ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305, - 0, 0, 0, CIPHER_ADD, -1, &head, &tail); - ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20POLY1305_OLD, - 0, 0, 0, CIPHER_ADD, -1, &head, &tail); - 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, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); - - /* RC4 is sort of broken - move it to 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)) { - 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 = reallocarray(NULL, num_of_alias_max, sizeof(SSL_CIPHER *)); - if (ca_list == NULL) { - 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); - - free((void *)ca_list); /* Not needed anymore */ - - if (!ok) { - /* Rule processing failure */ - 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) { - 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); - } - } - 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); -} - -const SSL_CIPHER * -SSL_CIPHER_get_by_id(unsigned int id) -{ - return ssl3_get_cipher_by_id(id); -} - -const SSL_CIPHER * -SSL_CIPHER_get_by_value(uint16_t value) -{ - return ssl3_get_cipher_by_value(value); -} - -char * -SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) -{ - unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, alg2; - const char *ver, *kx, *au, *enc, *mac; - char *ret; - int l; - - 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; - - if (alg_ssl & SSL_SSLV3) - ver = "SSLv3"; - else if (alg_ssl & SSL_TLSV1_2) - ver = "TLSv1.2"; - else - ver = "unknown"; - - switch (alg_mkey) { - case SSL_kRSA: - kx = "RSA"; - break; - case SSL_kDHE: - kx = "DH"; - break; - case SSL_kECDHr: - kx = "ECDH/RSA"; - break; - case SSL_kECDHe: - kx = "ECDH/ECDSA"; - break; - case SSL_kECDHE: - kx = "ECDH"; - break; - case SSL_kGOST: - kx = "GOST"; - break; - default: - kx = "unknown"; - } - - switch (alg_auth) { - case SSL_aRSA: - au = "RSA"; - break; - case SSL_aDSS: - au = "DSS"; - break; - case SSL_aECDH: - au = "ECDH"; - break; - case SSL_aNULL: - au = "None"; - break; - case SSL_aECDSA: - au = "ECDSA"; - break; - case SSL_aGOST01: - au = "GOST01"; - break; - default: - au = "unknown"; - break; - } - - switch (alg_enc) { - case SSL_DES: - enc = "DES(56)"; - break; - case SSL_3DES: - enc = "3DES(168)"; - break; - case SSL_RC4: - enc = alg2 & SSL2_CF_8_BYTE_ENC ? "RC4(64)" : "RC4(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_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_CHACHA20POLY1305: - enc = "ChaCha20-Poly1305"; - break; - case SSL_CHACHA20POLY1305_OLD: - enc = "ChaCha20-Poly1305-Old"; - break; - case SSL_eGOST2814789CNT: - enc = "GOST-28178-89-CNT"; - break; - default: - enc = "unknown"; - break; - } - - switch (alg_mac) { - case SSL_MD5: - mac = "MD5"; - break; - case SSL_SHA1: - mac = "SHA1"; - break; - case SSL_SHA256: - mac = "SHA256"; - break; - case SSL_SHA384: - mac = "SHA384"; - break; - case SSL_AEAD: - mac = "AEAD"; - break; - case SSL_GOST94: - mac = "GOST94"; - break; - case SSL_GOST89MAC: - mac = "GOST89IMIT"; - break; - case SSL_STREEBOG256: - mac = "STREEBOG256"; - break; - case SSL_STREEBOG512: - mac = "STREEBOG512"; - break; - default: - mac = "unknown"; - break; - } - - if (asprintf(&ret, "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s\n", - cipher->name, ver, kx, au, enc, mac) == -1) - return "OPENSSL_malloc Error"; - - if (buf != NULL) { - l = strlcpy(buf, ret, len); - free(ret); - ret = buf; - if (l >= len) - ret = "Buffer too small"; - } - - return (ret); -} - -char * -SSL_CIPHER_get_version(const SSL_CIPHER *c) -{ - if (c == NULL) - return("(NONE)"); - if ((c->id >> 24) == 3) - return("TLSv1/SSLv3"); - 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); -} - -unsigned long -SSL_CIPHER_get_id(const SSL_CIPHER *c) -{ - return c->id; -} - -uint16_t -SSL_CIPHER_get_value(const SSL_CIPHER *c) -{ - return ssl3_cipher_get_value(c); -} - -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; -} -- cgit v1.2.3-55-g6feb