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authorWilliam Joye <wjoye@cfa.harvard.edu>2017-05-02 16:40:01 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2017-05-02 16:40:01 (GMT)
commit0a2b8b8e0bc2e91a9f10659b30e2e4f5b79ce692 (patch)
tree3d0871d05cfd11f60b86829d2d93704034dad24e /openssl/ssl/ssl_ciph.c
parente9abe0dba896d2b0fc22301588336e89ff246ba7 (diff)
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Diffstat (limited to 'openssl/ssl/ssl_ciph.c')
-rw-r--r--openssl/ssl/ssl_ciph.c2092
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diff --git a/openssl/ssl/ssl_ciph.c b/openssl/ssl/ssl_ciph.c
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--- a/openssl/ssl/ssl_ciph.c
+++ /dev/null
@@ -1,2092 +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, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT, 0, 0, 0},
-
- /*
- * key exchange aliases (some of those using only a single bit here
- * combine multiple key exchange algs according to the RFCs, e.g. kEDH
- * combines DHE_DSS and DHE_RSA)
- */
- {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0},
-
- {0, SSL_TXT_kDHr, 0, SSL_kDHr, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_kDHd, 0, SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_kDH, 0, SSL_kDHr | SSL_kDHd, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_kEDH, 0, SSL_kEDH, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_kDHE, 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_kECDHE, 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},
- /* no such ciphersuites supported! */
- {0, SSL_TXT_aDH, 0, 0, SSL_aDH, 0, 0, 0, 0, 0, 0, 0},
- {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},
- {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 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_DHE, 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_ECDHE, 0, SSL_kEECDH, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_KRB5, 0, SSL_kKRB5, SSL_aKRB5, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_ADH, 0, SSL_kEDH, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_AECDH, 0, SSL_kEECDH, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_PSK, 0, SSL_kPSK, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
-
- /* symmetric encryption aliases */
- {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM, 0, 0, 0, 0, 0,
- 0},
- {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM, 0, 0, 0, 0, 0,
- 0},
- {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0,
- 0, 0},
- {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0},
- {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA128 | SSL_CAMELLIA256, 0, 0, 0,
- 0, 0, 0},
-
- /* MAC aliases */
- {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0},
- {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
- {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
- {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0},
- {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC, 0, 0, 0, 0, 0},
- {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0},
- {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0},
-
- /* protocol version aliases */
- {0, SSL_TXT_SSLV2, 0, 0, 0, 0, 0, SSL_SSLV2, 0, 0, 0, 0},
- {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
- {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0},
- {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, SSL_TLSV1_2, 0, 0, 0, 0},
-
- /* export flag */
- {0, SSL_TXT_EXP, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
- {0, SSL_TXT_EXPORT, 0, 0, 0, 0, 0, 0, SSL_EXPORT, 0, 0, 0},
-
- /* strength classes */
- {0, SSL_TXT_EXP40, 0, 0, 0, 0, 0, 0, SSL_EXP40, 0, 0, 0},
- {0, SSL_TXT_EXP56, 0, 0, 0, 0, 0, 0, SSL_EXP56, 0, 0, 0},
- {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
- {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
- {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0},
- /* FIPS 140-2 approved ciphersuite */
- {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, SSL_FIPS, 0, 0, 0},
- /* "DHE-" aliases to "EDH-" labels (for forward compatibility) */
- {0, SSL3_TXT_DHE_DSS_DES_40_CBC_SHA, 0,
- SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40,
- 0, 0, 0,},
- {0, SSL3_TXT_DHE_DSS_DES_64_CBC_SHA, 0,
- SSL_kDHE, SSL_aDSS, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW,
- 0, 0, 0,},
- {0, SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA, 0,
- SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, SSL_SSLV3,
- SSL_NOT_EXP | SSL_HIGH | SSL_FIPS, 0, 0, 0,},
- {0, SSL3_TXT_DHE_RSA_DES_40_CBC_SHA, 0,
- SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_EXPORT | SSL_EXP40,
- 0, 0, 0,},
- {0, SSL3_TXT_DHE_RSA_DES_64_CBC_SHA, 0,
- SSL_kDHE, SSL_aRSA, SSL_DES, SSL_SHA1, SSL_SSLV3, SSL_NOT_EXP | SSL_LOW,
- 0, 0, 0,},
- {0, SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA, 0,
- SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, SSL_SSLV3,
- SSL_NOT_EXP | SSL_HIGH | 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) > 0) {
- return pkey_id;
- }
- return 0;
-}
-
-#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) {
- if (EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL,
- ameth) <= 0)
- pkey_id = 0;
- }
- 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
-
-int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
- const EVP_MD **md, int *mac_pkey_type,
- int *mac_secret_size, SSL_COMP **comp)
-{
- int i;
- const SSL_CIPHER *c;
-
- c = s->cipher;
- if (c == NULL)
- return (0);
- if (comp != NULL) {
- SSL_COMP ctmp;
-#ifndef OPENSSL_NO_COMP
- load_builtin_compressions();
-#endif
-
- *comp = NULL;
- ctmp.id = s->compress_meth;
- if (ssl_comp_methods != NULL) {
- i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp);
- if (i >= 0)
- *comp = sk_SSL_COMP_value(ssl_comp_methods, i);
- else
- *comp = NULL;
- }
- }
-
- if ((enc == NULL) || (md == NULL))
- return (0);
-
- switch (c->algorithm_enc) {
- case SSL_DES:
- i = SSL_ENC_DES_IDX;
- break;
- case SSL_3DES:
- i = SSL_ENC_3DES_IDX;
- break;
- case SSL_RC4:
- i = SSL_ENC_RC4_IDX;
- break;
- case SSL_RC2:
- i = SSL_ENC_RC2_IDX;
- break;
- case SSL_IDEA:
- i = SSL_ENC_IDEA_IDX;
- break;
- case SSL_eNULL:
- i = SSL_ENC_NULL_IDX;
- break;
- case SSL_AES128:
- i = SSL_ENC_AES128_IDX;
- break;
- case SSL_AES256:
- i = SSL_ENC_AES256_IDX;
- break;
- case SSL_CAMELLIA128:
- i = SSL_ENC_CAMELLIA128_IDX;
- break;
- case SSL_CAMELLIA256:
- i = SSL_ENC_CAMELLIA256_IDX;
- break;
- case SSL_eGOST2814789CNT:
- i = SSL_ENC_GOST89_IDX;
- break;
- case SSL_SEED:
- i = SSL_ENC_SEED_IDX;
- break;
- 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;
- else if (c->algorithm_enc == SSL_AES128 &&
- c->algorithm_mac == SSL_SHA256 &&
- (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES256 &&
- c->algorithm_mac == SSL_SHA256 &&
- (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
- *enc = evp, *md = NULL;
- return (1);
- } else
- return (0);
-}
-
-int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
-{
- if (idx < 0 || idx >= SSL_MD_NUM_IDX) {
- return 0;
- }
- *mask = ssl_handshake_digest_flag[idx];
- if (*mask)
- *md = ssl_digest_methods[idx];
- else
- *md = NULL;
- return 1;
-}
-
-#define ITEM_SEP(a) \
- (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
-
-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
-#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
- fprintf(stderr, "\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, *next, *last;
- const SSL_CIPHER *cp;
- int reverse = 0;
-
-#ifdef CIPHER_DEBUG
- fprintf(stderr,
- "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) {
- next = tail;
- last = head;
- } else {
- next = head;
- last = tail;
- }
-
- curr = NULL;
- for (;;) {
- if (curr == last)
- break;
-
- curr = next;
-
- if (curr == NULL)
- break;
-
- 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 {
-#ifdef CIPHER_DEBUG
- fprintf(stderr,
- "\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
-#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
- if (cipher_id && cipher_id != cp->id)
- continue;
-#endif
- if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
- continue;
- if (alg_auth && !(alg_auth & cp->algorithm_auth))
- continue;
- if (alg_enc && !(alg_enc & cp->algorithm_enc))
- continue;
- if (alg_mac && !(alg_mac & cp->algorithm_mac))
- continue;
- if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
- continue;
- if ((algo_strength & SSL_EXP_MASK)
- && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
- continue;
- if ((algo_strength & SSL_STRONG_MASK)
- && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
- continue;
- if ((algo_strength & SSL_NOT_DEFAULT)
- && !(cp->algo_strength & SSL_NOT_DEFAULT))
- continue;
- }
-
-#ifdef CIPHER_DEBUG
- fprintf(stderr, "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]->algo_strength & SSL_NOT_DEFAULT) {
- algo_strength |= SSL_NOT_DEFAULT;
- }
-
- 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);
-}
-
-#ifndef OPENSSL_NO_EC
-static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c,
- const char **prule_str)
-{
- unsigned int suiteb_flags = 0, suiteb_comb2 = 0;
- if (strncmp(*prule_str, "SUITEB128ONLY", 13) == 0) {
- suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY;
- } else if (strncmp(*prule_str, "SUITEB128C2", 11) == 0) {
- suiteb_comb2 = 1;
- suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
- } else if (strncmp(*prule_str, "SUITEB128", 9) == 0) {
- suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
- } else if (strncmp(*prule_str, "SUITEB192", 9) == 0) {
- suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS;
- }
-
- if (suiteb_flags) {
- c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS;
- c->cert_flags |= suiteb_flags;
- } else
- suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS;
-
- if (!suiteb_flags)
- return 1;
- /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
-
- if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) {
- if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
- SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
- SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
- else
- SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
- SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
- return 0;
- }
-# ifndef OPENSSL_NO_ECDH
- switch (suiteb_flags) {
- case SSL_CERT_FLAG_SUITEB_128_LOS:
- if (suiteb_comb2)
- *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
- else
- *prule_str =
- "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
- break;
- case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
- *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256";
- break;
- case SSL_CERT_FLAG_SUITEB_192_LOS:
- *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
- break;
- }
- /* Set auto ECDH parameter determination */
- c->ecdh_tmp_auto = 1;
- return 1;
-# else
- SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
- SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE);
- return 0;
-# endif
-}
-#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, CERT *c)
-{
- 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;
-#ifndef OPENSSL_NO_EC
- if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
- return NULL;
-#endif
-
- /*
- * To reduce the work to do we only want to process the compiled
- * in algorithms, so we first get the mask of disabled ciphers.
- */
- 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
- fprintf(stderr, "ssl_create_cipher_list() for %d ciphers\n",
- num_of_ciphers);
-#endif /* KSSL_DEBUG */
- co_list =
- (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers);
- if (co_list == NULL) {
- SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
- return (NULL); /* Failure */
- }
-
- ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers,
- disabled_mkey, disabled_auth, disabled_enc,
- disabled_mac, disabled_ssl, co_list, &head,
- &tail);
-
- /* Now arrange all ciphers by preference: */
-
- /*
- * Everything else being equal, prefer ephemeral ECDH over other key
- * exchange mechanisms
- */
- ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head,
- &tail);
- ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head,
- &tail);
-
- /* AES is our preferred symmetric cipher */
- ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head,
- &tail);
-
- /* Temporarily enable everything else for sorting */
- ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
-
- /* Low priority for MD5 */
- ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
-
- /*
- * Move anonymous ciphers to the end. Usually, these will remain
- * disabled. (For applications that allow them, they aren't too bad, but
- * we prefer authenticated ciphers.)
- */
- ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
-
- /* Move ciphers without forward secrecy to the end */
- ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
- /*
- * ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1,
- * &head, &tail);
- */
- ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
- ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
- ssl_cipher_apply_rule(0, SSL_kKRB5, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
-
- /* RC4 is sort-of broken -- move the the end */
- ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head,
- &tail);
-
- /*
- * Now sort by symmetric encryption strength. The above ordering remains
- * in force within each class
- */
- if (!ssl_cipher_strength_sort(&head, &tail)) {
- OPENSSL_free(co_list);
- return NULL;
- }
-
- /* Now disable everything (maintaining the ordering!) */
- ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail);
-
- /*
- * We also need cipher aliases for selecting based on the rule_str.
- * There might be two types of entries in the rule_str: 1) names
- * of ciphers themselves 2) aliases for groups of ciphers.
- * For 1) we need the available ciphers and for 2) the cipher
- * groups of cipher_aliases added together in one list (otherwise
- * we would be happy with just the cipher_aliases table).
- */
- num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
- num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
- ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
- if (ca_list == NULL) {
- OPENSSL_free(co_list);
- SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
- return (NULL); /* Failure */
- }
- ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
- disabled_mkey, disabled_auth, disabled_enc,
- disabled_mac, disabled_ssl, head);
-
- /*
- * If the rule_string begins with DEFAULT, apply the default rule
- * before using the (possibly available) additional rules.
- */
- ok = 1;
- rule_p = rule_str;
- if (strncmp(rule_str, "DEFAULT", 7) == 0) {
- ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
- &head, &tail, ca_list);
- rule_p += 7;
- if (*rule_p == ':')
- rule_p++;
- }
-
- if (ok && (strlen(rule_p) > 0))
- ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list);
-
- OPENSSL_free((void *)ca_list); /* Not needed anymore */
-
- if (!ok) { /* Rule processing failure */
- OPENSSL_free(co_list);
- return (NULL);
- }
-
- /*
- * Allocate new "cipherstack" for the result, return with error
- * if we cannot get one.
- */
- if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
- OPENSSL_free(co_list);
- return (NULL);
- }
-
- /*
- * The cipher selection for the list is done. The ciphers are added
- * to the resulting precedence to the STACK_OF(SSL_CIPHER).
- */
- for (curr = head; curr != NULL; curr = curr->next) {
-#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
- fprintf(stderr, "<%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;
- 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_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;
- case SSL_aSRP:
- au = "SRP";
- break;
- case SSL_aGOST94:
- au = "GOST94";
- break;
- case SSL_aGOST01:
- au = "GOST01";
- 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_eGOST2814789CNT:
- enc = "GOST89(256)";
- 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_GOST89MAC:
- mac = "GOST89";
- break;
- case SSL_GOST94:
- mac = "GOST94";
- 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;
-}
-
-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
-STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
-{
- return NULL;
-}
-
-STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
- *meths)
-{
- return NULL;
-}
-
-void SSL_COMP_free_compression_methods(void)
-{
-}
-
-int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
-{
- return 1;
-}
-
-const char *SSL_COMP_get_name(const COMP_METHOD *comp)
-{
- return NULL;
-}
-#else
-STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
-{
- load_builtin_compressions();
- return (ssl_comp_methods);
-}
-
-STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
- *meths)
-{
- STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
- ssl_comp_methods = meths;
- return old_meths;
-}
-
-static void cmeth_free(SSL_COMP *cm)
-{
- OPENSSL_free(cm);
-}
-
-void SSL_COMP_free_compression_methods(void)
-{
- STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
- ssl_comp_methods = NULL;
- sk_SSL_COMP_pop_free(old_meths, cmeth_free);
-}
-
-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));
- if (comp == NULL) {
- MemCheck_on();
- SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
- return 1;
- }
- 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
-/* For a cipher return the index corresponding to the certificate type */
-int ssl_cipher_get_cert_index(const SSL_CIPHER *c)
-{
- unsigned long alg_k, alg_a;
-
- alg_k = c->algorithm_mkey;
- alg_a = c->algorithm_auth;
-
- if (alg_k & (SSL_kECDHr | SSL_kECDHe)) {
- /*
- * we don't need to look at SSL_kEECDH since no certificate is needed
- * for anon ECDH and for authenticated EECDH, the check for the auth
- * algorithm will set i correctly NOTE: For ECDH-RSA, we need an ECC
- * not an RSA cert but for EECDH-RSA we need an RSA cert. Placing the
- * checks for SSL_kECDH before RSA checks ensures the correct cert is
- * chosen.
- */
- return SSL_PKEY_ECC;
- } else if (alg_a & SSL_aECDSA)
- return SSL_PKEY_ECC;
- else if (alg_k & SSL_kDHr)
- return SSL_PKEY_DH_RSA;
- else if (alg_k & SSL_kDHd)
- return SSL_PKEY_DH_DSA;
- else if (alg_a & SSL_aDSS)
- return SSL_PKEY_DSA_SIGN;
- else if (alg_a & SSL_aRSA)
- return SSL_PKEY_RSA_ENC;
- else if (alg_a & SSL_aKRB5)
- /* VRS something else here? */
- return -1;
- else if (alg_a & SSL_aGOST94)
- return SSL_PKEY_GOST94;
- else if (alg_a & SSL_aGOST01)
- return SSL_PKEY_GOST01;
- return -1;
-}
-
-const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr)
-{
- const SSL_CIPHER *c;
- c = ssl->method->get_cipher_by_char(ptr);
- if (c == NULL || c->valid == 0)
- return NULL;
- return c;
-}
-
-const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr)
-{
- return ssl->method->get_cipher_by_char(ptr);
-}