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Unified Diff: openssl/ssl/ssl_ciph.c

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master
Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago
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Index: openssl/ssl/ssl_ciph.c
diff --git a/openssl/ssl/ssl_ciph.c b/openssl/ssl/ssl_ciph.c
deleted file mode 100644
index cebb18a8ae51778fdbe4b58a2eb8b249caf10c89..0000000000000000000000000000000000000000
--- a/openssl/ssl/ssl_ciph.c
+++ /dev/null
@@ -1,1945 +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_AES128GCM_IDX 12
-#define SSL_ENC_AES256GCM_IDX 13
-#define SSL_ENC_NUM_IDX 14
-
-
-static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL
- };
-
-#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
-#define SSL_MD_SHA256_IDX 4
-#define SSL_MD_SHA384_IDX 5
-/*Constant SSL_MAX_DIGEST equal to size of digests array should be
- * defined in the
- * ssl_locl.h */
-#define SSL_MD_NUM_IDX SSL_MAX_DIGEST
-static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL
- };
-/* PKEY_TYPE for GOST89MAC is known in advance, but, because
- * implementation is engine-provided, we'll fill it only if
- * corresponding EVP_PKEY_METHOD is found
- */
-static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={
- EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef,
- EVP_PKEY_HMAC,EVP_PKEY_HMAC
- };
-
-static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={
- 0,0,0,0,0,0
- };
-
-static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={
- SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA,
- SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256,
- SSL_HANDSHAKE_MAC_SHA384
- };
-
-#define CIPHER_ADD 1
-#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_kSRP,0, SSL_kSRP, 0,0,0,0,0,0,0,0},
- {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0},
-
- /* server authentication aliases */
- {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0},
- {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuites supported! */
- {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0},
- {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0},
- {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0},
- {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0},
- {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0},
-
- /* aliases combining key exchange and server authentication */
- {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
- {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0},
- {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0},
- {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0},
- {0,SSL_TXT_SRP,0, SSL_kSRP,0,0,0,0,0,0,0,0},
-
-
- /* symmetric encryption aliases */
- {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0},
- {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0},
- {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0},
- {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0},
- {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0},
- {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0},
- {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
- {0,SSL_TXT_AES128,0, 0,0,SSL_AES128|SSL_AES128GCM,0,0,0,0,0,0},
- {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0},
- {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0},
- {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,0,0,0,0,0,0},
- {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0},
- {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0},
- {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0},
- {0,SSL_TXT_CHACHA20 ,0,0,0,SSL_CHACHA20POLY1305,0,0,0,0,0,0},
-
- /* MAC aliases */
- {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0},
- {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0},
- {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0},
- {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0},
- {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0},
- {0,SSL_TXT_SHA256,0, 0,0,0,SSL_SHA256, 0,0,0,0,0},
- {0,SSL_TXT_SHA384,0, 0,0,0,SSL_SHA384, 0,0,0,0,0},
-
- /* protocol version aliases */
- {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0},
- {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0},
- {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0},
- {0,SSL_TXT_TLSV1_2,0, 0,0,0,0,SSL_TLSV1_2, 0,0,0,0},
-
- /* export flag */
- {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0},
- {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0},
-
- /* strength classes */
- {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0},
- {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0},
- {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0},
- {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0},
- {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0},
- /* FIPS 140-2 approved ciphersuite */
- {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0},
- };
-/* Search for public key algorithm with given name and
- * return its pkey_id if it is available. Otherwise return 0
- */
-#ifdef OPENSSL_NO_ENGINE
-
-static int get_optional_pkey_id(const char *pkey_name)
- {
- const EVP_PKEY_ASN1_METHOD *ameth;
- int pkey_id=0;
- ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1);
- if (ameth)
- {
- EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth);
- }
- return pkey_id;
- }
-
-#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_cipher_methods[SSL_ENC_AES128GCM_IDX]=
- EVP_get_cipherbyname(SN_aes_128_gcm);
- ssl_cipher_methods[SSL_ENC_AES256GCM_IDX]=
- EVP_get_cipherbyname(SN_aes_256_gcm);
-
- ssl_digest_methods[SSL_MD_MD5_IDX]=
- EVP_get_digestbyname(SN_md5);
- ssl_mac_secret_size[SSL_MD_MD5_IDX]=
- EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]);
- OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0);
- ssl_digest_methods[SSL_MD_SHA1_IDX]=
- EVP_get_digestbyname(SN_sha1);
- ssl_mac_secret_size[SSL_MD_SHA1_IDX]=
- EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]);
- OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0);
- ssl_digest_methods[SSL_MD_GOST94_IDX]=
- EVP_get_digestbyname(SN_id_GostR3411_94);
- if (ssl_digest_methods[SSL_MD_GOST94_IDX])
- {
- ssl_mac_secret_size[SSL_MD_GOST94_IDX]=
- EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]);
- OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0);
- }
- ssl_digest_methods[SSL_MD_GOST89MAC_IDX]=
- EVP_get_digestbyname(SN_id_Gost28147_89_MAC);
- ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac");
- if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) {
- ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32;
- }
-
- ssl_digest_methods[SSL_MD_SHA256_IDX]=
- EVP_get_digestbyname(SN_sha256);
- ssl_mac_secret_size[SSL_MD_SHA256_IDX]=
- EVP_MD_size(ssl_digest_methods[SSL_MD_SHA256_IDX]);
- ssl_digest_methods[SSL_MD_SHA384_IDX]=
- EVP_get_digestbyname(SN_sha384);
- ssl_mac_secret_size[SSL_MD_SHA384_IDX]=
- EVP_MD_size(ssl_digest_methods[SSL_MD_SHA384_IDX]);
- }
-#ifndef OPENSSL_NO_COMP
-
-static int sk_comp_cmp(const SSL_COMP * const *a,
- const SSL_COMP * const *b)
- {
- return((*a)->id-(*b)->id);
- }
-
-static void load_builtin_compressions(void)
- {
- int got_write_lock = 0;
-
- CRYPTO_r_lock(CRYPTO_LOCK_SSL);
- if (ssl_comp_methods == NULL)
- {
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
- CRYPTO_w_lock(CRYPTO_LOCK_SSL);
- got_write_lock = 1;
-
- if (ssl_comp_methods == NULL)
- {
- SSL_COMP *comp = NULL;
-
- MemCheck_off();
- ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp);
- if (ssl_comp_methods != NULL)
- {
- comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
- if (comp != NULL)
- {
- comp->method=COMP_zlib();
- if (comp->method
- && comp->method->type == NID_undef)
- OPENSSL_free(comp);
- else
- {
- comp->id=SSL_COMP_ZLIB_IDX;
- comp->name=comp->method->name;
- sk_SSL_COMP_push(ssl_comp_methods,comp);
- }
- }
- sk_SSL_COMP_sort(ssl_comp_methods);
- }
- MemCheck_on();
- }
- }
-
- if (got_write_lock)
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
- else
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL);
- }
-#endif
-
-/* ssl_cipher_get_comp sets |comp| to the correct SSL_COMP for the given
- * session and returns 1. On error it returns 0. */
-int ssl_cipher_get_comp(const SSL_SESSION *s, SSL_COMP **comp)
- {
- int i;
-
- 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;
- }
-
- return 1;
- }
-
-/* 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;
-
-#ifndef OPENSSL_NO_AES
- switch (c->algorithm_enc)
- {
- case SSL_AES128GCM:
- *aead = EVP_aead_aes_128_gcm();
- return 1;
- case SSL_CHACHA20POLY1305:
- *aead = EVP_aead_chacha20_poly1305();
- return 1;
- }
-#endif
-
- return 0;
- }
-
-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)
- {
- int i;
- const SSL_CIPHER *c;
-
- c=s->cipher;
- if (c == NULL) return(0);
-
- /* This function doesn't deal with EVP_AEAD. See
- * |ssl_cipher_get_aead_evp|. */
- 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_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;
- 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;
- 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;
-
-#ifdef OPENSSL_FIPS
- if (FIPS_mode())
- return 1;
-#endif
-
- if (c->algorithm_enc == SSL_RC4 &&
- c->algorithm_mac == SSL_MD5 &&
- (evp=EVP_get_cipherbyname("RC4-HMAC-MD5")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES128 &&
- c->algorithm_mac == SSL_SHA1 &&
- (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES256 &&
- c->algorithm_mac == SSL_SHA1 &&
- (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
- *enc = evp, *md = NULL;
- return(1);
- }
- else
- return(0);
- }
-
-int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
-{
- if (idx <0||idx>=SSL_MD_NUM_IDX)
- {
- return 0;
- }
- *mask = ssl_handshake_digest_flag[idx];
- if (*mask)
- *md = ssl_digest_methods[idx];
- else
- *md = NULL;
- return 1;
-}
-
-#define ITEM_SEP(a) \
- (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
-
-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
-#ifdef OPENSSL_NO_SRP
- *mkey |= SSL_kSRP;
-#endif
- /* Check for presence of GOST 34.10 algorithms, and if they
- * do not present, disable appropriate auth and key exchange */
- if (!get_optional_pkey_id("gost94")) {
- *auth |= SSL_aGOST94;
- }
- if (!get_optional_pkey_id("gost2001")) {
- *auth |= SSL_aGOST01;
- }
- /* Disable GOST key exchange if no GOST signature algs are available * */
- if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) {
- *mkey |= SSL_kGOST;
- }
-#ifdef SSL_FORBID_ENULL
- *enc |= SSL_eNULL;
-#endif
-
-
-
- *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0;
- *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0;
- *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0;
- *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] == NULL) ? SSL_AES128GCM:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] == NULL) ? SSL_AES256GCM:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0;
-
- *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
- *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
- *mac |= (ssl_digest_methods[SSL_MD_SHA256_IDX] == NULL) ? SSL_SHA256:0;
- *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384:0;
- *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0;
- *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0;
-
- }
-
-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 &&
-#ifdef OPENSSL_FIPS
- (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) &&
-#endif
- !(c->algorithm_mkey & disabled_mkey) &&
- !(c->algorithm_auth & disabled_auth) &&
- !(c->algorithm_enc & disabled_enc) &&
- !(c->algorithm_mac & disabled_mac) &&
- !(c->algorithm_ssl & disabled_ssl))
- {
- 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 == '-') || (ch == '.'))
-#else
- while ( isalnum(ch) || (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);
-
- /* 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_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)
- {
-#ifdef OPENSSL_FIPS
- if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS))
-#else
- if (curr->active)
-#endif
- {
- sk_SSL_CIPHER_push(cipherstack, curr->cipher);
-#ifdef CIPHER_DEBUG
- 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 if (alg_ssl & SSL_TLSV1_2)
- ver="TLSv1.2";
- 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;
- case SSL_kSRP:
- kx="SRP";
- 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_AES128GCM:
- enc="AESGCM(128)";
- break;
- case SSL_AES256GCM:
- enc="AESGCM(256)";
- break;
- case SSL_CAMELLIA128:
- enc="Camellia(128)";
- break;
- case SSL_CAMELLIA256:
- enc="Camellia(256)";
- break;
- case SSL_SEED:
- enc="SEED(128)";
- break;
- case SSL_CHACHA20POLY1305:
- enc="ChaCha20-Poly1305";
- 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;
- 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);
- }
-
-unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c)
- {
- return c->id;
- }
-
-/* 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
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