Index: openssl/ssl/ssl_ciph.c.orig |
=================================================================== |
--- openssl/ssl/ssl_ciph.c.orig (revision 0) |
+++ openssl/ssl/ssl_ciph.c.orig (revision 0) |
@@ -0,0 +1,1747 @@ |
+/* ssl/ssl_ciph.c */ |
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
+ * All rights reserved. |
+ * |
+ * This package is an SSL implementation written |
+ * by Eric Young (eay@cryptsoft.com). |
+ * The implementation was written so as to conform with Netscapes SSL. |
+ * |
+ * This library is free for commercial and non-commercial use as long as |
+ * the following conditions are aheared to. The following conditions |
+ * apply to all code found in this distribution, be it the RC4, RSA, |
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
+ * included with this distribution is covered by the same copyright terms |
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
+ * |
+ * Copyright remains Eric Young's, and as such any Copyright notices in |
+ * the code are not to be removed. |
+ * If this package is used in a product, Eric Young should be given attribution |
+ * as the author of the parts of the library used. |
+ * This can be in the form of a textual message at program startup or |
+ * in documentation (online or textual) provided with the package. |
+ * |
+ * Redistribution and use in source and binary forms, with or without |
+ * modification, are permitted provided that the following conditions |
+ * are met: |
+ * 1. Redistributions of source code must retain the copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * 2. Redistributions in binary form must reproduce the above copyright |
+ * notice, this list of conditions and the following disclaimer in the |
+ * documentation and/or other materials provided with the distribution. |
+ * 3. All advertising materials mentioning features or use of this software |
+ * must display the following acknowledgement: |
+ * "This product includes cryptographic software written by |
+ * Eric Young (eay@cryptsoft.com)" |
+ * The word 'cryptographic' can be left out if the rouines from the library |
+ * being used are not cryptographic related :-). |
+ * 4. If you include any Windows specific code (or a derivative thereof) from |
+ * the apps directory (application code) you must include an acknowledgement: |
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
+ * SUCH DAMAGE. |
+ * |
+ * The licence and distribution terms for any publically available version or |
+ * derivative of this code cannot be changed. i.e. this code cannot simply be |
+ * copied and put under another distribution licence |
+ * [including the GNU Public Licence.] |
+ */ |
+/* ==================================================================== |
+ * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
+ * |
+ * Redistribution and use in source and binary forms, with or without |
+ * modification, are permitted provided that the following conditions |
+ * are met: |
+ * |
+ * 1. Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * |
+ * 2. Redistributions in binary form must reproduce the above copyright |
+ * notice, this list of conditions and the following disclaimer in |
+ * the documentation and/or other materials provided with the |
+ * distribution. |
+ * |
+ * 3. All advertising materials mentioning features or use of this |
+ * software must display the following acknowledgment: |
+ * "This product includes software developed by the OpenSSL Project |
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
+ * |
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
+ * endorse or promote products derived from this software without |
+ * prior written permission. For written permission, please contact |
+ * openssl-core@openssl.org. |
+ * |
+ * 5. Products derived from this software may not be called "OpenSSL" |
+ * nor may "OpenSSL" appear in their names without prior written |
+ * permission of the OpenSSL Project. |
+ * |
+ * 6. Redistributions of any form whatsoever must retain the following |
+ * acknowledgment: |
+ * "This product includes software developed by the OpenSSL Project |
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
+ * OF THE POSSIBILITY OF SUCH DAMAGE. |
+ * ==================================================================== |
+ * |
+ * This product includes cryptographic software written by Eric Young |
+ * (eay@cryptsoft.com). This product includes software written by Tim |
+ * Hudson (tjh@cryptsoft.com). |
+ * |
+ */ |
+/* ==================================================================== |
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. |
+ * ECC cipher suite support in OpenSSL originally developed by |
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
+ */ |
+/* ==================================================================== |
+ * Copyright 2005 Nokia. All rights reserved. |
+ * |
+ * The portions of the attached software ("Contribution") is developed by |
+ * Nokia Corporation and is licensed pursuant to the OpenSSL open source |
+ * license. |
+ * |
+ * The Contribution, originally written by Mika Kousa and Pasi Eronen of |
+ * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites |
+ * support (see RFC 4279) to OpenSSL. |
+ * |
+ * No patent licenses or other rights except those expressly stated in |
+ * the OpenSSL open source license shall be deemed granted or received |
+ * expressly, by implication, estoppel, or otherwise. |
+ * |
+ * No assurances are provided by Nokia that the Contribution does not |
+ * infringe the patent or other intellectual property rights of any third |
+ * party or that the license provides you with all the necessary rights |
+ * to make use of the Contribution. |
+ * |
+ * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN |
+ * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA |
+ * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY |
+ * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR |
+ * OTHERWISE. |
+ */ |
+ |
+#include <stdio.h> |
+#include <openssl/objects.h> |
+#ifndef OPENSSL_NO_COMP |
+#include <openssl/comp.h> |
+#endif |
+#ifndef OPENSSL_NO_ENGINE |
+#include <openssl/engine.h> |
+#endif |
+#include "ssl_locl.h" |
+ |
+#define SSL_ENC_DES_IDX 0 |
+#define SSL_ENC_3DES_IDX 1 |
+#define SSL_ENC_RC4_IDX 2 |
+#define SSL_ENC_RC2_IDX 3 |
+#define SSL_ENC_IDEA_IDX 4 |
+#define SSL_ENC_NULL_IDX 5 |
+#define SSL_ENC_AES128_IDX 6 |
+#define SSL_ENC_AES256_IDX 7 |
+#define SSL_ENC_CAMELLIA128_IDX 8 |
+#define SSL_ENC_CAMELLIA256_IDX 9 |
+#define SSL_ENC_GOST89_IDX 10 |
+#define SSL_ENC_SEED_IDX 11 |
+#define SSL_ENC_NUM_IDX 12 |
+ |
+ |
+static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={ |
+ NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL, |
+ }; |
+ |
+#define SSL_COMP_NULL_IDX 0 |
+#define SSL_COMP_ZLIB_IDX 1 |
+#define SSL_COMP_NUM_IDX 2 |
+ |
+static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL; |
+ |
+#define SSL_MD_MD5_IDX 0 |
+#define SSL_MD_SHA1_IDX 1 |
+#define SSL_MD_GOST94_IDX 2 |
+#define SSL_MD_GOST89MAC_IDX 3 |
+/*Constant SSL_MAX_DIGEST equal to size of digests array should be |
+ * defined in the |
+ * ssl_locl.h */ |
+#define SSL_MD_NUM_IDX SSL_MAX_DIGEST |
+static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={ |
+ NULL,NULL,NULL,NULL |
+ }; |
+/* PKEY_TYPE for GOST89MAC is known in advance, but, because |
+ * implementation is engine-provided, we'll fill it only if |
+ * corresponding EVP_PKEY_METHOD is found |
+ */ |
+static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={ |
+ EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef |
+ }; |
+ |
+static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={ |
+ 0,0,0,0 |
+ }; |
+ |
+static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={ |
+ SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA, |
+ SSL_HANDSHAKE_MAC_GOST94,0 |
+ }; |
+ |
+#define CIPHER_ADD 1 |
+#define CIPHER_KILL 2 |
+#define CIPHER_DEL 3 |
+#define CIPHER_ORD 4 |
+#define CIPHER_SPECIAL 5 |
+ |
+typedef struct cipher_order_st |
+ { |
+ const SSL_CIPHER *cipher; |
+ int active; |
+ int dead; |
+ struct cipher_order_st *next,*prev; |
+ } CIPHER_ORDER; |
+ |
+static const SSL_CIPHER cipher_aliases[]={ |
+ /* "ALL" doesn't include eNULL (must be specifically enabled) */ |
+ {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0}, |
+ /* "COMPLEMENTOFALL" */ |
+ {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0}, |
+ |
+ /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */ |
+ {0,SSL_TXT_CMPDEF,0, SSL_kEDH|SSL_kEECDH,SSL_aNULL,~SSL_eNULL,0,0,0,0,0,0}, |
+ |
+ /* key exchange aliases |
+ * (some of those using only a single bit here combine |
+ * multiple key exchange algs according to the RFCs, |
+ * e.g. kEDH combines DHE_DSS and DHE_RSA) */ |
+ {0,SSL_TXT_kRSA,0, SSL_kRSA, 0,0,0,0,0,0,0,0}, |
+ |
+ {0,SSL_TXT_kDHr,0, SSL_kDHr, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ |
+ {0,SSL_TXT_kDHd,0, SSL_kDHd, 0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ |
+ {0,SSL_TXT_kDH,0, SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ |
+ {0,SSL_TXT_kEDH,0, SSL_kEDH, 0,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0}, |
+ |
+ {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0}, |
+ |
+ {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0}, |
+ |
+ {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0}, |
+ |
+ /* server authentication aliases */ |
+ {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuites supported! */ |
+ {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0}, |
+ |
+ /* aliases combining key exchange and server authentication */ |
+ {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0}, |
+ {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0}, |
+ |
+ |
+ /* symmetric encryption aliases */ |
+ {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0}, |
+ {0,SSL_TXT_AES128,0, 0,0,SSL_AES128,0,0,0,0,0,0}, |
+ {0,SSL_TXT_AES256,0, 0,0,SSL_AES256,0,0,0,0,0,0}, |
+ {0,SSL_TXT_AES,0, 0,0,SSL_AES128|SSL_AES256,0,0,0,0,0,0}, |
+ {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0}, |
+ {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0}, |
+ {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0}, |
+ |
+ /* MAC aliases */ |
+ {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0}, |
+ {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, |
+ {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0}, |
+ {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0}, |
+ {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0}, |
+ |
+ /* protocol version aliases */ |
+ {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0}, |
+ {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0}, |
+ {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0}, |
+ |
+ /* export flag */ |
+ {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, |
+ {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0}, |
+ |
+ /* strength classes */ |
+ {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0}, |
+ {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0}, |
+ {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0}, |
+ {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0}, |
+ {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0}, |
+ /* FIPS 140-2 approved ciphersuite */ |
+ {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0}, |
+ }; |
+/* Search for public key algorithm with given name and |
+ * return its pkey_id if it is available. Otherwise return 0 |
+ */ |
+#ifdef OPENSSL_NO_ENGINE |
+ |
+static int get_optional_pkey_id(const char *pkey_name) |
+ { |
+ const EVP_PKEY_ASN1_METHOD *ameth; |
+ int pkey_id=0; |
+ ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1); |
+ if (ameth) |
+ { |
+ EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); |
+ } |
+ return pkey_id; |
+ } |
+ |
+#else |
+ |
+static int get_optional_pkey_id(const char *pkey_name) |
+ { |
+ const EVP_PKEY_ASN1_METHOD *ameth; |
+ ENGINE *tmpeng = NULL; |
+ int pkey_id=0; |
+ ameth = EVP_PKEY_asn1_find_str(&tmpeng,pkey_name,-1); |
+ if (ameth) |
+ { |
+ EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth); |
+ } |
+ if (tmpeng) ENGINE_finish(tmpeng); |
+ return pkey_id; |
+ } |
+ |
+#endif |
+ |
+void ssl_load_ciphers(void) |
+ { |
+ ssl_cipher_methods[SSL_ENC_DES_IDX]= |
+ EVP_get_cipherbyname(SN_des_cbc); |
+ ssl_cipher_methods[SSL_ENC_3DES_IDX]= |
+ EVP_get_cipherbyname(SN_des_ede3_cbc); |
+ ssl_cipher_methods[SSL_ENC_RC4_IDX]= |
+ EVP_get_cipherbyname(SN_rc4); |
+ ssl_cipher_methods[SSL_ENC_RC2_IDX]= |
+ EVP_get_cipherbyname(SN_rc2_cbc); |
+#ifndef OPENSSL_NO_IDEA |
+ ssl_cipher_methods[SSL_ENC_IDEA_IDX]= |
+ EVP_get_cipherbyname(SN_idea_cbc); |
+#else |
+ ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL; |
+#endif |
+ ssl_cipher_methods[SSL_ENC_AES128_IDX]= |
+ EVP_get_cipherbyname(SN_aes_128_cbc); |
+ ssl_cipher_methods[SSL_ENC_AES256_IDX]= |
+ EVP_get_cipherbyname(SN_aes_256_cbc); |
+ ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX]= |
+ EVP_get_cipherbyname(SN_camellia_128_cbc); |
+ ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX]= |
+ EVP_get_cipherbyname(SN_camellia_256_cbc); |
+ ssl_cipher_methods[SSL_ENC_GOST89_IDX]= |
+ EVP_get_cipherbyname(SN_gost89_cnt); |
+ ssl_cipher_methods[SSL_ENC_SEED_IDX]= |
+ EVP_get_cipherbyname(SN_seed_cbc); |
+ |
+ ssl_digest_methods[SSL_MD_MD5_IDX]= |
+ EVP_get_digestbyname(SN_md5); |
+ ssl_mac_secret_size[SSL_MD_MD5_IDX]= |
+ EVP_MD_size(ssl_digest_methods[SSL_MD_MD5_IDX]); |
+ OPENSSL_assert(ssl_mac_secret_size[SSL_MD_MD5_IDX] >= 0); |
+ ssl_digest_methods[SSL_MD_SHA1_IDX]= |
+ EVP_get_digestbyname(SN_sha1); |
+ ssl_mac_secret_size[SSL_MD_SHA1_IDX]= |
+ EVP_MD_size(ssl_digest_methods[SSL_MD_SHA1_IDX]); |
+ OPENSSL_assert(ssl_mac_secret_size[SSL_MD_SHA1_IDX] >= 0); |
+ ssl_digest_methods[SSL_MD_GOST94_IDX]= |
+ EVP_get_digestbyname(SN_id_GostR3411_94); |
+ if (ssl_digest_methods[SSL_MD_GOST94_IDX]) |
+ { |
+ ssl_mac_secret_size[SSL_MD_GOST94_IDX]= |
+ EVP_MD_size(ssl_digest_methods[SSL_MD_GOST94_IDX]); |
+ OPENSSL_assert(ssl_mac_secret_size[SSL_MD_GOST94_IDX] >= 0); |
+ } |
+ ssl_digest_methods[SSL_MD_GOST89MAC_IDX]= |
+ EVP_get_digestbyname(SN_id_Gost28147_89_MAC); |
+ ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = get_optional_pkey_id("gost-mac"); |
+ if (ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) { |
+ ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX]=32; |
+ } |
+ |
+ } |
+#ifndef OPENSSL_NO_COMP |
+ |
+static int sk_comp_cmp(const SSL_COMP * const *a, |
+ const SSL_COMP * const *b) |
+ { |
+ return((*a)->id-(*b)->id); |
+ } |
+ |
+static void load_builtin_compressions(void) |
+ { |
+ int got_write_lock = 0; |
+ |
+ CRYPTO_r_lock(CRYPTO_LOCK_SSL); |
+ if (ssl_comp_methods == NULL) |
+ { |
+ CRYPTO_r_unlock(CRYPTO_LOCK_SSL); |
+ CRYPTO_w_lock(CRYPTO_LOCK_SSL); |
+ got_write_lock = 1; |
+ |
+ if (ssl_comp_methods == NULL) |
+ { |
+ SSL_COMP *comp = NULL; |
+ |
+ MemCheck_off(); |
+ ssl_comp_methods=sk_SSL_COMP_new(sk_comp_cmp); |
+ if (ssl_comp_methods != NULL) |
+ { |
+ comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP)); |
+ if (comp != NULL) |
+ { |
+ comp->method=COMP_zlib(); |
+ if (comp->method |
+ && comp->method->type == NID_undef) |
+ OPENSSL_free(comp); |
+ else |
+ { |
+ comp->id=SSL_COMP_ZLIB_IDX; |
+ comp->name=comp->method->name; |
+ sk_SSL_COMP_push(ssl_comp_methods,comp); |
+ } |
+ } |
+ 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; |
+ default: |
+ i= -1; |
+ break; |
+ } |
+ |
+ if ((i < 0) || (i > SSL_ENC_NUM_IDX)) |
+ *enc=NULL; |
+ else |
+ { |
+ if (i == SSL_ENC_NULL_IDX) |
+ *enc=EVP_enc_null(); |
+ else |
+ *enc=ssl_cipher_methods[i]; |
+ } |
+ |
+ switch (c->algorithm_mac) |
+ { |
+ case SSL_MD5: |
+ i=SSL_MD_MD5_IDX; |
+ break; |
+ case SSL_SHA1: |
+ i=SSL_MD_SHA1_IDX; |
+ break; |
+ case SSL_GOST94: |
+ i = SSL_MD_GOST94_IDX; |
+ break; |
+ case SSL_GOST89MAC: |
+ i = SSL_MD_GOST89MAC_IDX; |
+ break; |
+ default: |
+ i= -1; |
+ break; |
+ } |
+ if ((i < 0) || (i > SSL_MD_NUM_IDX)) |
+ { |
+ *md=NULL; |
+ if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef; |
+ if (mac_secret_size!=NULL) *mac_secret_size = 0; |
+ |
+ } |
+ else |
+ { |
+ *md=ssl_digest_methods[i]; |
+ if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i]; |
+ if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i]; |
+ } |
+ |
+ if ((*enc != NULL) && (*md != NULL) && (!mac_pkey_type||*mac_pkey_type != NID_undef)) |
+ return(1); |
+ else |
+ return(0); |
+ } |
+ |
+int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md) |
+{ |
+ if (idx <0||idx>=SSL_MD_NUM_IDX) |
+ { |
+ return 0; |
+ } |
+ if (ssl_handshake_digest_flag[idx]==0) return 0; |
+ *mask = ssl_handshake_digest_flag[idx]; |
+ *md = ssl_digest_methods[idx]; |
+ return 1; |
+} |
+ |
+#define ITEM_SEP(a) \ |
+ (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) |
+ |
+static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
+ CIPHER_ORDER **tail) |
+ { |
+ if (curr == *tail) return; |
+ if (curr == *head) |
+ *head=curr->next; |
+ if (curr->prev != NULL) |
+ curr->prev->next=curr->next; |
+ if (curr->next != NULL) |
+ curr->next->prev=curr->prev; |
+ (*tail)->next=curr; |
+ curr->prev= *tail; |
+ curr->next=NULL; |
+ *tail=curr; |
+ } |
+ |
+static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
+ CIPHER_ORDER **tail) |
+ { |
+ if (curr == *head) return; |
+ if (curr == *tail) |
+ *tail=curr->prev; |
+ if (curr->next != NULL) |
+ curr->next->prev=curr->prev; |
+ if (curr->prev != NULL) |
+ curr->prev->next=curr->next; |
+ (*head)->prev=curr; |
+ curr->next= *head; |
+ curr->prev=NULL; |
+ *head=curr; |
+ } |
+ |
+static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl) |
+ { |
+ *mkey = 0; |
+ *auth = 0; |
+ *enc = 0; |
+ *mac = 0; |
+ *ssl = 0; |
+ |
+#ifdef OPENSSL_NO_RSA |
+ *mkey |= SSL_kRSA; |
+ *auth |= SSL_aRSA; |
+#endif |
+#ifdef OPENSSL_NO_DSA |
+ *auth |= SSL_aDSS; |
+#endif |
+ *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */ |
+ *auth |= SSL_aDH; |
+#ifdef OPENSSL_NO_DH |
+ *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH; |
+ *auth |= SSL_aDH; |
+#endif |
+#ifdef OPENSSL_NO_KRB5 |
+ *mkey |= SSL_kKRB5; |
+ *auth |= SSL_aKRB5; |
+#endif |
+#ifdef OPENSSL_NO_ECDSA |
+ *auth |= SSL_aECDSA; |
+#endif |
+#ifdef OPENSSL_NO_ECDH |
+ *mkey |= SSL_kECDHe|SSL_kECDHr; |
+ *auth |= SSL_aECDH; |
+#endif |
+#ifdef OPENSSL_NO_PSK |
+ *mkey |= SSL_kPSK; |
+ *auth |= SSL_aPSK; |
+#endif |
+ /* Check for presence of GOST 34.10 algorithms, and if they |
+ * do not present, disable appropriate auth and key exchange */ |
+ if (!get_optional_pkey_id("gost94")) { |
+ *auth |= SSL_aGOST94; |
+ } |
+ if (!get_optional_pkey_id("gost2001")) { |
+ *auth |= SSL_aGOST01; |
+ } |
+ /* Disable GOST key exchange if no GOST signature algs are available * */ |
+ if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) { |
+ *mkey |= SSL_kGOST; |
+ } |
+#ifdef SSL_FORBID_ENULL |
+ *enc |= SSL_eNULL; |
+#endif |
+ |
+ |
+ |
+ *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0; |
+ *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0; |
+ |
+ *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0; |
+ *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0; |
+ *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0; |
+ *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0; |
+ |
+ } |
+ |
+static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, |
+ int num_of_ciphers, |
+ unsigned long disabled_mkey, unsigned long disabled_auth, |
+ unsigned long disabled_enc, unsigned long disabled_mac, |
+ unsigned long disabled_ssl, |
+ CIPHER_ORDER *co_list, |
+ CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) |
+ { |
+ int i, co_list_num; |
+ const SSL_CIPHER *c; |
+ |
+ /* |
+ * We have num_of_ciphers descriptions compiled in, depending on the |
+ * method selected (SSLv2 and/or SSLv3, TLSv1 etc). |
+ * These will later be sorted in a linked list with at most num |
+ * entries. |
+ */ |
+ |
+ /* Get the initial list of ciphers */ |
+ co_list_num = 0; /* actual count of ciphers */ |
+ for (i = 0; i < num_of_ciphers; i++) |
+ { |
+ c = ssl_method->get_cipher(i); |
+ /* drop those that use any of that is not available */ |
+ if ((c != NULL) && c->valid && |
+ !(c->algorithm_mkey & disabled_mkey) && |
+ !(c->algorithm_auth & disabled_auth) && |
+ !(c->algorithm_enc & disabled_enc) && |
+ !(c->algorithm_mac & disabled_mac) && |
+ !(c->algorithm_ssl & disabled_ssl)) |
+ { |
+ co_list[co_list_num].cipher = c; |
+ co_list[co_list_num].next = NULL; |
+ co_list[co_list_num].prev = NULL; |
+ co_list[co_list_num].active = 0; |
+ co_list_num++; |
+#ifdef KSSL_DEBUG |
+ printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth); |
+#endif /* KSSL_DEBUG */ |
+ /* |
+ if (!sk_push(ca_list,(char *)c)) goto err; |
+ */ |
+ } |
+ } |
+ |
+ /* |
+ * Prepare linked list from list entries |
+ */ |
+ if (co_list_num > 0) |
+ { |
+ co_list[0].prev = NULL; |
+ |
+ if (co_list_num > 1) |
+ { |
+ co_list[0].next = &co_list[1]; |
+ |
+ for (i = 1; i < co_list_num - 1; i++) |
+ { |
+ co_list[i].prev = &co_list[i - 1]; |
+ co_list[i].next = &co_list[i + 1]; |
+ } |
+ |
+ co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; |
+ } |
+ |
+ co_list[co_list_num - 1].next = NULL; |
+ |
+ *head_p = &co_list[0]; |
+ *tail_p = &co_list[co_list_num - 1]; |
+ } |
+ } |
+ |
+static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
+ int num_of_group_aliases, |
+ unsigned long disabled_mkey, unsigned long disabled_auth, |
+ unsigned long disabled_enc, unsigned long disabled_mac, |
+ unsigned long disabled_ssl, |
+ CIPHER_ORDER *head) |
+ { |
+ CIPHER_ORDER *ciph_curr; |
+ const SSL_CIPHER **ca_curr; |
+ int i; |
+ unsigned long mask_mkey = ~disabled_mkey; |
+ unsigned long mask_auth = ~disabled_auth; |
+ unsigned long mask_enc = ~disabled_enc; |
+ unsigned long mask_mac = ~disabled_mac; |
+ unsigned long mask_ssl = ~disabled_ssl; |
+ |
+ /* |
+ * First, add the real ciphers as already collected |
+ */ |
+ ciph_curr = head; |
+ ca_curr = ca_list; |
+ while (ciph_curr != NULL) |
+ { |
+ *ca_curr = ciph_curr->cipher; |
+ ca_curr++; |
+ ciph_curr = ciph_curr->next; |
+ } |
+ |
+ /* |
+ * Now we add the available ones from the cipher_aliases[] table. |
+ * They represent either one or more algorithms, some of which |
+ * in any affected category must be supported (set in enabled_mask), |
+ * or represent a cipher strength value (will be added in any case because algorithms=0). |
+ */ |
+ for (i = 0; i < num_of_group_aliases; i++) |
+ { |
+ unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
+ unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth; |
+ unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc; |
+ unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac; |
+ unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl; |
+ |
+ if (algorithm_mkey) |
+ if ((algorithm_mkey & mask_mkey) == 0) |
+ continue; |
+ |
+ if (algorithm_auth) |
+ if ((algorithm_auth & mask_auth) == 0) |
+ continue; |
+ |
+ if (algorithm_enc) |
+ if ((algorithm_enc & mask_enc) == 0) |
+ continue; |
+ |
+ if (algorithm_mac) |
+ if ((algorithm_mac & mask_mac) == 0) |
+ continue; |
+ |
+ if (algorithm_ssl) |
+ if ((algorithm_ssl & mask_ssl) == 0) |
+ continue; |
+ |
+ *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); |
+ ca_curr++; |
+ } |
+ |
+ *ca_curr = NULL; /* end of list */ |
+ } |
+ |
+static void ssl_cipher_apply_rule(unsigned long cipher_id, |
+ unsigned long alg_mkey, unsigned long alg_auth, |
+ unsigned long alg_enc, unsigned long alg_mac, |
+ unsigned long alg_ssl, |
+ unsigned long algo_strength, |
+ int rule, int strength_bits, |
+ CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p) |
+ { |
+ CIPHER_ORDER *head, *tail, *curr, *curr2, *last; |
+ const SSL_CIPHER *cp; |
+ int reverse = 0; |
+ |
+#ifdef CIPHER_DEBUG |
+ printf("Applying rule %d with %08lx/%08lx/%08lx/%08lx/%08lx %08lx (%d)\n", |
+ rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, strength_bits); |
+#endif |
+ |
+ if (rule == CIPHER_DEL) |
+ reverse = 1; /* needed to maintain sorting between currently deleted ciphers */ |
+ |
+ head = *head_p; |
+ tail = *tail_p; |
+ |
+ if (reverse) |
+ { |
+ curr = tail; |
+ last = head; |
+ } |
+ else |
+ { |
+ curr = head; |
+ last = tail; |
+ } |
+ |
+ curr2 = curr; |
+ for (;;) |
+ { |
+ if ((curr == NULL) || (curr == last)) break; |
+ curr = curr2; |
+ curr2 = reverse ? curr->prev : curr->next; |
+ |
+ cp = curr->cipher; |
+ |
+ /* |
+ * Selection criteria is either the value of strength_bits |
+ * or the algorithms used. |
+ */ |
+ if (strength_bits >= 0) |
+ { |
+ if (strength_bits != cp->strength_bits) |
+ continue; |
+ } |
+ else |
+ { |
+#ifdef CIPHER_DEBUG |
+ printf("\nName: %s:\nAlgo = %08lx/%08lx/%08lx/%08lx/%08lx Algo_strength = %08lx\n", cp->name, cp->algorithm_mkey, cp->algorithm_auth, cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl, cp->algo_strength); |
+#endif |
+ |
+ if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) |
+ continue; |
+ if (alg_auth && !(alg_auth & cp->algorithm_auth)) |
+ continue; |
+ if (alg_enc && !(alg_enc & cp->algorithm_enc)) |
+ continue; |
+ if (alg_mac && !(alg_mac & cp->algorithm_mac)) |
+ continue; |
+ if (alg_ssl && !(alg_ssl & cp->algorithm_ssl)) |
+ continue; |
+ if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength)) |
+ continue; |
+ if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) |
+ continue; |
+ } |
+ |
+#ifdef CIPHER_DEBUG |
+ printf("Action = %d\n", rule); |
+#endif |
+ |
+ /* add the cipher if it has not been added yet. */ |
+ if (rule == CIPHER_ADD) |
+ { |
+ /* reverse == 0 */ |
+ if (!curr->active) |
+ { |
+ ll_append_tail(&head, curr, &tail); |
+ curr->active = 1; |
+ } |
+ } |
+ /* Move the added cipher to this location */ |
+ else if (rule == CIPHER_ORD) |
+ { |
+ /* reverse == 0 */ |
+ if (curr->active) |
+ { |
+ ll_append_tail(&head, curr, &tail); |
+ } |
+ } |
+ else if (rule == CIPHER_DEL) |
+ { |
+ /* reverse == 1 */ |
+ if (curr->active) |
+ { |
+ /* most recently deleted ciphersuites get best positions |
+ * for any future CIPHER_ADD (note that the CIPHER_DEL loop |
+ * works in reverse to maintain the order) */ |
+ ll_append_head(&head, curr, &tail); |
+ curr->active = 0; |
+ } |
+ } |
+ else if (rule == CIPHER_KILL) |
+ { |
+ /* reverse == 0 */ |
+ if (head == curr) |
+ head = curr->next; |
+ else |
+ curr->prev->next = curr->next; |
+ if (tail == curr) |
+ tail = curr->prev; |
+ curr->active = 0; |
+ if (curr->next != NULL) |
+ curr->next->prev = curr->prev; |
+ if (curr->prev != NULL) |
+ curr->prev->next = curr->next; |
+ curr->next = NULL; |
+ curr->prev = NULL; |
+ } |
+ } |
+ |
+ *head_p = head; |
+ *tail_p = tail; |
+ } |
+ |
+static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
+ CIPHER_ORDER **tail_p) |
+ { |
+ int max_strength_bits, i, *number_uses; |
+ CIPHER_ORDER *curr; |
+ |
+ /* |
+ * This routine sorts the ciphers with descending strength. The sorting |
+ * must keep the pre-sorted sequence, so we apply the normal sorting |
+ * routine as '+' movement to the end of the list. |
+ */ |
+ max_strength_bits = 0; |
+ curr = *head_p; |
+ while (curr != NULL) |
+ { |
+ if (curr->active && |
+ (curr->cipher->strength_bits > max_strength_bits)) |
+ max_strength_bits = curr->cipher->strength_bits; |
+ curr = curr->next; |
+ } |
+ |
+ number_uses = OPENSSL_malloc((max_strength_bits + 1) * sizeof(int)); |
+ if (!number_uses) |
+ { |
+ SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT,ERR_R_MALLOC_FAILURE); |
+ return(0); |
+ } |
+ memset(number_uses, 0, (max_strength_bits + 1) * sizeof(int)); |
+ |
+ /* |
+ * Now find the strength_bits values actually used |
+ */ |
+ curr = *head_p; |
+ while (curr != NULL) |
+ { |
+ if (curr->active) |
+ number_uses[curr->cipher->strength_bits]++; |
+ curr = curr->next; |
+ } |
+ /* |
+ * Go through the list of used strength_bits values in descending |
+ * order. |
+ */ |
+ for (i = max_strength_bits; i >= 0; i--) |
+ if (number_uses[i] > 0) |
+ ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, tail_p); |
+ |
+ OPENSSL_free(number_uses); |
+ return(1); |
+ } |
+ |
+static int ssl_cipher_process_rulestr(const char *rule_str, |
+ CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p, |
+ const SSL_CIPHER **ca_list) |
+ { |
+ unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength; |
+ const char *l, *buf; |
+ int j, multi, found, rule, retval, ok, buflen; |
+ unsigned long cipher_id = 0; |
+ char ch; |
+ |
+ retval = 1; |
+ l = rule_str; |
+ for (;;) |
+ { |
+ ch = *l; |
+ |
+ if (ch == '\0') |
+ break; /* done */ |
+ if (ch == '-') |
+ { rule = CIPHER_DEL; l++; } |
+ else if (ch == '+') |
+ { rule = CIPHER_ORD; l++; } |
+ else if (ch == '!') |
+ { rule = CIPHER_KILL; l++; } |
+ else if (ch == '@') |
+ { rule = CIPHER_SPECIAL; l++; } |
+ else |
+ { rule = CIPHER_ADD; } |
+ |
+ if (ITEM_SEP(ch)) |
+ { |
+ l++; |
+ continue; |
+ } |
+ |
+ alg_mkey = 0; |
+ alg_auth = 0; |
+ alg_enc = 0; |
+ alg_mac = 0; |
+ alg_ssl = 0; |
+ algo_strength = 0; |
+ |
+ for (;;) |
+ { |
+ ch = *l; |
+ buf = l; |
+ buflen = 0; |
+#ifndef CHARSET_EBCDIC |
+ while ( ((ch >= 'A') && (ch <= 'Z')) || |
+ ((ch >= '0') && (ch <= '9')) || |
+ ((ch >= 'a') && (ch <= 'z')) || |
+ (ch == '-')) |
+#else |
+ while ( isalnum(ch) || (ch == '-')) |
+#endif |
+ { |
+ ch = *(++l); |
+ buflen++; |
+ } |
+ |
+ if (buflen == 0) |
+ { |
+ /* |
+ * We hit something we cannot deal with, |
+ * it is no command or separator nor |
+ * alphanumeric, so we call this an error. |
+ */ |
+ SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, |
+ SSL_R_INVALID_COMMAND); |
+ retval = found = 0; |
+ l++; |
+ break; |
+ } |
+ |
+ if (rule == CIPHER_SPECIAL) |
+ { |
+ found = 0; /* unused -- avoid compiler warning */ |
+ break; /* special treatment */ |
+ } |
+ |
+ /* check for multi-part specification */ |
+ if (ch == '+') |
+ { |
+ multi=1; |
+ l++; |
+ } |
+ else |
+ multi=0; |
+ |
+ /* |
+ * Now search for the cipher alias in the ca_list. Be careful |
+ * with the strncmp, because the "buflen" limitation |
+ * will make the rule "ADH:SOME" and the cipher |
+ * "ADH-MY-CIPHER" look like a match for buflen=3. |
+ * So additionally check whether the cipher name found |
+ * has the correct length. We can save a strlen() call: |
+ * just checking for the '\0' at the right place is |
+ * sufficient, we have to strncmp() anyway. (We cannot |
+ * use strcmp(), because buf is not '\0' terminated.) |
+ */ |
+ j = found = 0; |
+ cipher_id = 0; |
+ while (ca_list[j]) |
+ { |
+ if (!strncmp(buf, ca_list[j]->name, buflen) && |
+ (ca_list[j]->name[buflen] == '\0')) |
+ { |
+ found = 1; |
+ break; |
+ } |
+ else |
+ j++; |
+ } |
+ |
+ if (!found) |
+ break; /* ignore this entry */ |
+ |
+ if (ca_list[j]->algorithm_mkey) |
+ { |
+ if (alg_mkey) |
+ { |
+ alg_mkey &= ca_list[j]->algorithm_mkey; |
+ if (!alg_mkey) { found = 0; break; } |
+ } |
+ else |
+ alg_mkey = ca_list[j]->algorithm_mkey; |
+ } |
+ |
+ if (ca_list[j]->algorithm_auth) |
+ { |
+ if (alg_auth) |
+ { |
+ alg_auth &= ca_list[j]->algorithm_auth; |
+ if (!alg_auth) { found = 0; break; } |
+ } |
+ else |
+ alg_auth = ca_list[j]->algorithm_auth; |
+ } |
+ |
+ if (ca_list[j]->algorithm_enc) |
+ { |
+ if (alg_enc) |
+ { |
+ alg_enc &= ca_list[j]->algorithm_enc; |
+ if (!alg_enc) { found = 0; break; } |
+ } |
+ else |
+ alg_enc = ca_list[j]->algorithm_enc; |
+ } |
+ |
+ if (ca_list[j]->algorithm_mac) |
+ { |
+ if (alg_mac) |
+ { |
+ alg_mac &= ca_list[j]->algorithm_mac; |
+ if (!alg_mac) { found = 0; break; } |
+ } |
+ else |
+ alg_mac = ca_list[j]->algorithm_mac; |
+ } |
+ |
+ if (ca_list[j]->algo_strength & SSL_EXP_MASK) |
+ { |
+ if (algo_strength & SSL_EXP_MASK) |
+ { |
+ algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK; |
+ if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; } |
+ } |
+ else |
+ algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK; |
+ } |
+ |
+ if (ca_list[j]->algo_strength & SSL_STRONG_MASK) |
+ { |
+ if (algo_strength & SSL_STRONG_MASK) |
+ { |
+ algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK; |
+ if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; } |
+ } |
+ else |
+ algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK; |
+ } |
+ |
+ if (ca_list[j]->valid) |
+ { |
+ /* explicit ciphersuite found; its protocol version |
+ * does not become part of the search pattern!*/ |
+ |
+ cipher_id = ca_list[j]->id; |
+ } |
+ else |
+ { |
+ /* not an explicit ciphersuite; only in this case, the |
+ * protocol version is considered part of the search pattern */ |
+ |
+ if (ca_list[j]->algorithm_ssl) |
+ { |
+ if (alg_ssl) |
+ { |
+ alg_ssl &= ca_list[j]->algorithm_ssl; |
+ if (!alg_ssl) { found = 0; break; } |
+ } |
+ else |
+ alg_ssl = ca_list[j]->algorithm_ssl; |
+ } |
+ } |
+ |
+ if (!multi) break; |
+ } |
+ |
+ /* |
+ * Ok, we have the rule, now apply it |
+ */ |
+ if (rule == CIPHER_SPECIAL) |
+ { /* special command */ |
+ ok = 0; |
+ if ((buflen == 8) && |
+ !strncmp(buf, "STRENGTH", 8)) |
+ ok = ssl_cipher_strength_sort(head_p, tail_p); |
+ else |
+ SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR, |
+ SSL_R_INVALID_COMMAND); |
+ if (ok == 0) |
+ retval = 0; |
+ /* |
+ * We do not support any "multi" options |
+ * together with "@", so throw away the |
+ * rest of the command, if any left, until |
+ * end or ':' is found. |
+ */ |
+ while ((*l != '\0') && !ITEM_SEP(*l)) |
+ l++; |
+ } |
+ else if (found) |
+ { |
+ ssl_cipher_apply_rule(cipher_id, |
+ alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength, |
+ rule, -1, head_p, tail_p); |
+ } |
+ else |
+ { |
+ while ((*l != '\0') && !ITEM_SEP(*l)) |
+ l++; |
+ } |
+ if (*l == '\0') break; /* done */ |
+ } |
+ |
+ return(retval); |
+ } |
+ |
+STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, |
+ STACK_OF(SSL_CIPHER) **cipher_list, |
+ STACK_OF(SSL_CIPHER) **cipher_list_by_id, |
+ const char *rule_str) |
+ { |
+ int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases; |
+ unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl; |
+ STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list; |
+ const char *rule_p; |
+ CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; |
+ const SSL_CIPHER **ca_list = NULL; |
+ |
+ /* |
+ * Return with error if nothing to do. |
+ */ |
+ if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) |
+ return NULL; |
+ |
+ /* |
+ * To reduce the work to do we only want to process the compiled |
+ * in algorithms, so we first get the mask of disabled ciphers. |
+ */ |
+ ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl); |
+ |
+ /* |
+ * Now we have to collect the available ciphers from the compiled |
+ * in ciphers. We cannot get more than the number compiled in, so |
+ * it is used for allocation. |
+ */ |
+ num_of_ciphers = ssl_method->num_ciphers(); |
+#ifdef KSSL_DEBUG |
+ printf("ssl_create_cipher_list() for %d ciphers\n", num_of_ciphers); |
+#endif /* KSSL_DEBUG */ |
+ co_list = (CIPHER_ORDER *)OPENSSL_malloc(sizeof(CIPHER_ORDER) * num_of_ciphers); |
+ if (co_list == NULL) |
+ { |
+ SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); |
+ return(NULL); /* Failure */ |
+ } |
+ |
+ ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, |
+ disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl, |
+ co_list, &head, &tail); |
+ |
+ |
+ /* Now arrange all ciphers by preference: */ |
+ |
+ /* Everything else being equal, prefer ephemeral ECDH over other key exchange mechanisms */ |
+ ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); |
+ ssl_cipher_apply_rule(0, SSL_kEECDH, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); |
+ |
+ /* AES is our preferred symmetric cipher */ |
+ ssl_cipher_apply_rule(0, 0, 0, SSL_AES, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); |
+ |
+ /* Temporarily enable everything else for sorting */ |
+ ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); |
+ |
+ /* Low priority for MD5 */ |
+ ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ |
+ /* Move anonymous ciphers to the end. Usually, these will remain disabled. |
+ * (For applications that allow them, they aren't too bad, but we prefer |
+ * authenticated ciphers.) */ |
+ ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ |
+ /* Move ciphers without forward secrecy to the end */ |
+ ssl_cipher_apply_rule(0, 0, SSL_aECDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ /* ssl_cipher_apply_rule(0, 0, SSL_aDH, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); */ |
+ ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ ssl_cipher_apply_rule(0, SSL_kPSK, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ ssl_cipher_apply_rule(0, SSL_kKRB5, 0,0, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ |
+ /* RC4 is sort-of broken -- move the the end */ |
+ ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, &tail); |
+ |
+ /* Now sort by symmetric encryption strength. The above ordering remains |
+ * in force within each class */ |
+ if (!ssl_cipher_strength_sort(&head, &tail)) |
+ { |
+ OPENSSL_free(co_list); |
+ return NULL; |
+ } |
+ |
+ /* Now disable everything (maintaining the ordering!) */ |
+ ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); |
+ |
+ |
+ /* |
+ * We also need cipher aliases for selecting based on the rule_str. |
+ * There might be two types of entries in the rule_str: 1) names |
+ * of ciphers themselves 2) aliases for groups of ciphers. |
+ * For 1) we need the available ciphers and for 2) the cipher |
+ * groups of cipher_aliases added together in one list (otherwise |
+ * we would be happy with just the cipher_aliases table). |
+ */ |
+ num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER); |
+ num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; |
+ ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max); |
+ if (ca_list == NULL) |
+ { |
+ OPENSSL_free(co_list); |
+ SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE); |
+ return(NULL); /* Failure */ |
+ } |
+ ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, |
+ disabled_mkey, disabled_auth, disabled_enc, |
+ disabled_mac, disabled_ssl, head); |
+ |
+ /* |
+ * If the rule_string begins with DEFAULT, apply the default rule |
+ * before using the (possibly available) additional rules. |
+ */ |
+ ok = 1; |
+ rule_p = rule_str; |
+ if (strncmp(rule_str,"DEFAULT",7) == 0) |
+ { |
+ ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST, |
+ &head, &tail, ca_list); |
+ rule_p += 7; |
+ if (*rule_p == ':') |
+ rule_p++; |
+ } |
+ |
+ if (ok && (strlen(rule_p) > 0)) |
+ ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list); |
+ |
+ OPENSSL_free((void *)ca_list); /* Not needed anymore */ |
+ |
+ if (!ok) |
+ { /* Rule processing failure */ |
+ OPENSSL_free(co_list); |
+ return(NULL); |
+ } |
+ |
+ /* |
+ * Allocate new "cipherstack" for the result, return with error |
+ * if we cannot get one. |
+ */ |
+ if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) |
+ { |
+ OPENSSL_free(co_list); |
+ return(NULL); |
+ } |
+ |
+ /* |
+ * The cipher selection for the list is done. The ciphers are added |
+ * to the resulting precedence to the STACK_OF(SSL_CIPHER). |
+ */ |
+ for (curr = head; curr != NULL; curr = curr->next) |
+ { |
+ if (curr->active) |
+ { |
+ sk_SSL_CIPHER_push(cipherstack, curr->cipher); |
+#ifdef CIPHER_DEBUG |
+ printf("<%s>\n",curr->cipher->name); |
+#endif |
+ } |
+ } |
+ OPENSSL_free(co_list); /* Not needed any longer */ |
+ |
+ tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); |
+ if (tmp_cipher_list == NULL) |
+ { |
+ sk_SSL_CIPHER_free(cipherstack); |
+ return NULL; |
+ } |
+ if (*cipher_list != NULL) |
+ sk_SSL_CIPHER_free(*cipher_list); |
+ *cipher_list = cipherstack; |
+ if (*cipher_list_by_id != NULL) |
+ sk_SSL_CIPHER_free(*cipher_list_by_id); |
+ *cipher_list_by_id = tmp_cipher_list; |
+ (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp); |
+ |
+ sk_SSL_CIPHER_sort(*cipher_list_by_id); |
+ return(cipherstack); |
+ } |
+ |
+char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
+ { |
+ int is_export,pkl,kl; |
+ const char *ver,*exp_str; |
+ const char *kx,*au,*enc,*mac; |
+ unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2; |
+#ifdef KSSL_DEBUG |
+ static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n"; |
+#else |
+ static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n"; |
+#endif /* KSSL_DEBUG */ |
+ |
+ alg_mkey = cipher->algorithm_mkey; |
+ alg_auth = cipher->algorithm_auth; |
+ alg_enc = cipher->algorithm_enc; |
+ alg_mac = cipher->algorithm_mac; |
+ alg_ssl = cipher->algorithm_ssl; |
+ |
+ alg2=cipher->algorithm2; |
+ |
+ is_export=SSL_C_IS_EXPORT(cipher); |
+ pkl=SSL_C_EXPORT_PKEYLENGTH(cipher); |
+ kl=SSL_C_EXPORT_KEYLENGTH(cipher); |
+ exp_str=is_export?" export":""; |
+ |
+ if (alg_ssl & SSL_SSLV2) |
+ ver="SSLv2"; |
+ else if (alg_ssl & SSL_SSLV3) |
+ ver="SSLv3"; |
+ else |
+ ver="unknown"; |
+ |
+ switch (alg_mkey) |
+ { |
+ case SSL_kRSA: |
+ kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA"; |
+ break; |
+ case SSL_kDHr: |
+ kx="DH/RSA"; |
+ break; |
+ case SSL_kDHd: |
+ kx="DH/DSS"; |
+ break; |
+ case SSL_kKRB5: |
+ kx="KRB5"; |
+ break; |
+ case SSL_kEDH: |
+ kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH"; |
+ break; |
+ case SSL_kECDHr: |
+ kx="ECDH/RSA"; |
+ break; |
+ case SSL_kECDHe: |
+ kx="ECDH/ECDSA"; |
+ break; |
+ case SSL_kEECDH: |
+ kx="ECDH"; |
+ break; |
+ case SSL_kPSK: |
+ kx="PSK"; |
+ break; |
+ default: |
+ kx="unknown"; |
+ } |
+ |
+ switch (alg_auth) |
+ { |
+ case SSL_aRSA: |
+ au="RSA"; |
+ break; |
+ case SSL_aDSS: |
+ au="DSS"; |
+ break; |
+ case SSL_aDH: |
+ au="DH"; |
+ break; |
+ case SSL_aKRB5: |
+ au="KRB5"; |
+ break; |
+ case SSL_aECDH: |
+ au="ECDH"; |
+ break; |
+ case SSL_aNULL: |
+ au="None"; |
+ break; |
+ case SSL_aECDSA: |
+ au="ECDSA"; |
+ break; |
+ case SSL_aPSK: |
+ au="PSK"; |
+ break; |
+ default: |
+ au="unknown"; |
+ break; |
+ } |
+ |
+ switch (alg_enc) |
+ { |
+ case SSL_DES: |
+ enc=(is_export && kl == 5)?"DES(40)":"DES(56)"; |
+ break; |
+ case SSL_3DES: |
+ enc="3DES(168)"; |
+ break; |
+ case SSL_RC4: |
+ enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)") |
+ :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)"); |
+ break; |
+ case SSL_RC2: |
+ enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)"; |
+ break; |
+ case SSL_IDEA: |
+ enc="IDEA(128)"; |
+ break; |
+ case SSL_eNULL: |
+ enc="None"; |
+ break; |
+ case SSL_AES128: |
+ enc="AES(128)"; |
+ break; |
+ case SSL_AES256: |
+ enc="AES(256)"; |
+ break; |
+ case SSL_CAMELLIA128: |
+ enc="Camellia(128)"; |
+ break; |
+ case SSL_CAMELLIA256: |
+ enc="Camellia(256)"; |
+ break; |
+ case SSL_SEED: |
+ enc="SEED(128)"; |
+ break; |
+ default: |
+ enc="unknown"; |
+ break; |
+ } |
+ |
+ switch (alg_mac) |
+ { |
+ case SSL_MD5: |
+ mac="MD5"; |
+ break; |
+ case SSL_SHA1: |
+ mac="SHA1"; |
+ break; |
+ default: |
+ mac="unknown"; |
+ break; |
+ } |
+ |
+ if (buf == NULL) |
+ { |
+ len=128; |
+ buf=OPENSSL_malloc(len); |
+ if (buf == NULL) return("OPENSSL_malloc Error"); |
+ } |
+ else if (len < 128) |
+ return("Buffer too small"); |
+ |
+#ifdef KSSL_DEBUG |
+ BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl); |
+#else |
+ BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str); |
+#endif /* KSSL_DEBUG */ |
+ return(buf); |
+ } |
+ |
+char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
+ { |
+ int i; |
+ |
+ if (c == NULL) return("(NONE)"); |
+ i=(int)(c->id>>24L); |
+ if (i == 3) |
+ return("TLSv1/SSLv3"); |
+ else if (i == 2) |
+ return("SSLv2"); |
+ else |
+ return("unknown"); |
+ } |
+ |
+/* return the actual cipher being used */ |
+const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
+ { |
+ if (c != NULL) |
+ return(c->name); |
+ return("(NONE)"); |
+ } |
+ |
+/* number of bits for symmetric cipher */ |
+int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
+ { |
+ int ret=0; |
+ |
+ if (c != NULL) |
+ { |
+ if (alg_bits != NULL) *alg_bits = c->alg_bits; |
+ ret = c->strength_bits; |
+ } |
+ return(ret); |
+ } |
+ |
+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 |