* 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 "objects.h"
-#include "comp.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_RC4_IDX 2
#define SSL_ENC_RC2_IDX 3
#define SSL_ENC_IDEA_IDX 4
-#define SSL_ENC_eFZA_IDX 5
-#define SSL_ENC_NULL_IDX 6
-#define SSL_ENC_NUM_IDX 7
-
-static EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL,
+#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
};
-static STACK /* SSL_COMP */ *ssl_comp_methods=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_NUM_IDX 2
-static EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
- NULL,NULL,
+#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
};
-typedef struct cipher_sort_st
- {
- SSL_CIPHER *cipher;
- int pref;
- } CIPHER_SORT;
+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
-
-typedef struct cipher_choice_st
- {
- int type;
- unsigned long algorithms;
- unsigned long mask;
- long top;
- } CIPHER_CHOICE;
+#define CIPHER_SPECIAL 5
typedef struct cipher_order_st
{
- SSL_CIPHER *cipher;
+ const SSL_CIPHER *cipher;
int active;
int dead;
struct cipher_order_st *next,*prev;
} CIPHER_ORDER;
-static SSL_CIPHER cipher_aliases[]={
- {0,SSL_TXT_ALL, 0,SSL_ALL, 0,SSL_ALL}, /* must be first */
- {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,SSL_MKEY_MASK},
- {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,SSL_MKEY_MASK},
- {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,SSL_MKEY_MASK},
- {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,SSL_MKEY_MASK},
- {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,SSL_MKEY_MASK},
- {0,SSL_TXT_DH, 0,SSL_DH, 0,SSL_MKEY_MASK},
- {0,SSL_TXT_EDH, 0,SSL_EDH, 0,SSL_MKEY_MASK|SSL_AUTH_MASK},
-
- {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,SSL_AUTH_MASK},
- {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,SSL_AUTH_MASK},
- {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,SSL_AUTH_MASK},
- {0,SSL_TXT_aNULL,0,SSL_aNULL,0,SSL_AUTH_MASK},
- {0,SSL_TXT_aDH, 0,SSL_aDH, 0,SSL_AUTH_MASK},
- {0,SSL_TXT_DSS, 0,SSL_DSS, 0,SSL_AUTH_MASK},
-
- {0,SSL_TXT_DES, 0,SSL_DES, 0,SSL_ENC_MASK},
- {0,SSL_TXT_3DES,0,SSL_3DES, 0,SSL_ENC_MASK},
- {0,SSL_TXT_RC4, 0,SSL_RC4, 0,SSL_ENC_MASK},
- {0,SSL_TXT_RC2, 0,SSL_RC2, 0,SSL_ENC_MASK},
- {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,SSL_ENC_MASK},
- {0,SSL_TXT_eNULL,0,SSL_eNULL,0,SSL_ENC_MASK},
- {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,SSL_ENC_MASK},
-
- {0,SSL_TXT_MD5, 0,SSL_MD5, 0,SSL_MAC_MASK},
- {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,SSL_MAC_MASK},
- {0,SSL_TXT_SHA, 0,SSL_SHA, 0,SSL_MAC_MASK},
-
- {0,SSL_TXT_NULL,0,SSL_NULL, 0,SSL_ENC_MASK},
- {0,SSL_TXT_RSA, 0,SSL_RSA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK},
- {0,SSL_TXT_ADH, 0,SSL_ADH, 0,SSL_AUTH_MASK|SSL_MKEY_MASK},
- {0,SSL_TXT_FZA, 0,SSL_FZA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK},
-
- {0,SSL_TXT_EXP40, 0,SSL_EXP40, 0,SSL_EXP_MASK},
- {0,SSL_TXT_EXPORT,0,SSL_EXP40, 0,SSL_EXP_MASK},
- {0,SSL_TXT_EXP56, 0,SSL_EXP56, 0,SSL_EXP_MASK},
- {0,SSL_TXT_SSLV2, 0,SSL_SSLV2, 0,SSL_SSL_MASK},
- {0,SSL_TXT_SSLV3, 0,SSL_SSLV3, 0,SSL_SSL_MASK},
- {0,SSL_TXT_TLSV1, 0,SSL_TLSV1, 0,SSL_SSL_MASK},
- {0,SSL_TXT_LOW, 0,SSL_LOW, 0,SSL_STRONG_MASK},
- {0,SSL_TXT_MEDIUM,0,SSL_MEDIUM,0,SSL_STRONG_MASK},
- {0,SSL_TXT_HIGH, 0,SSL_HIGH, 0,SSL_STRONG_MASK},
+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},
+ {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_DH,0, SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0},
+
+ {0,SSL_TXT_kKRB5,0, SSL_kKRB5, 0,0,0,0,0,0,0,0},
+
+ {0,SSL_TXT_kECDHr,0, SSL_kECDHr,0,0,0,0,0,0,0,0},
+ {0,SSL_TXT_kECDHe,0, SSL_kECDHe,0,0,0,0,0,0,0,0},
+ {0,SSL_TXT_kECDH,0, SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0},
+ {0,SSL_TXT_kEECDH,0, SSL_kEECDH,0,0,0,0,0,0,0,0},
+ {0,SSL_TXT_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0},
+
+ {0,SSL_TXT_kPSK,0, SSL_kPSK, 0,0,0,0,0,0,0,0},
+ {0,SSL_TXT_kSRP,0, SSL_kSRP, 0,0,0,0,0,0,0,0},
+ {0,SSL_TXT_kGOST,0, SSL_kGOST,0,0,0,0,0,0,0,0},
+
+ /* server authentication aliases */
+ {0,SSL_TXT_aRSA,0, 0,SSL_aRSA, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aDSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_DSS,0, 0,SSL_aDSS, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aKRB5,0, 0,SSL_aKRB5, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aNULL,0, 0,SSL_aNULL, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aDH,0, 0,SSL_aDH, 0,0,0,0,0,0,0}, /* no such ciphersuites supported! */
+ {0,SSL_TXT_aECDH,0, 0,SSL_aECDH, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aECDSA,0, 0,SSL_aECDSA,0,0,0,0,0,0,0},
+ {0,SSL_TXT_ECDSA,0, 0,SSL_aECDSA, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aPSK,0, 0,SSL_aPSK, 0,0,0,0,0,0,0},
+ {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0},
+ {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0},
+ {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0},
+
+ /* aliases combining key exchange and server authentication */
+ {0,SSL_TXT_EDH,0, SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0},
+ {0,SSL_TXT_EECDH,0, SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0},
+ {0,SSL_TXT_NULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
+ {0,SSL_TXT_KRB5,0, SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0},
+ {0,SSL_TXT_RSA,0, SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0},
+ {0,SSL_TXT_ADH,0, SSL_kEDH,SSL_aNULL,0,0,0,0,0,0,0},
+ {0,SSL_TXT_AECDH,0, SSL_kEECDH,SSL_aNULL,0,0,0,0,0,0,0},
+ {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0},
+ {0,SSL_TXT_SRP,0, SSL_kSRP,0,0,0,0,0,0,0,0},
+
+
+ /* symmetric encryption aliases */
+ {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0},
+ {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0},
+ {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0},
+ {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0},
+ {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0},
+ {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0},
+ {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
+ {0,SSL_TXT_AES128,0, 0,0,SSL_AES128|SSL_AES128GCM,0,0,0,0,0,0},
+ {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0},
+ {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0},
+ {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,0,0,0,0,0,0},
+ {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0},
+ {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0},
+ {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0},
+
+ /* 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},
+
+ /* 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;
+ }
-static int init_ciphers=1;
-static void load_ciphers();
+#else
-static int cmp_by_name(a,b)
-SSL_CIPHER **a,**b;
+static int get_optional_pkey_id(const char *pkey_name)
{
- return(strcmp((*a)->name,(*b)->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;
}
-static void load_ciphers()
+#endif
+
+void ssl_load_ciphers(void)
{
- init_ciphers=0;
ssl_cipher_methods[SSL_ENC_DES_IDX]=
EVP_get_cipherbyname(SN_des_cbc);
ssl_cipher_methods[SSL_ENC_3DES_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(s,enc,md,comp)
-SSL_SESSION *s;
-EVP_CIPHER **enc;
-EVP_MD **md;
-SSL_COMP **comp;
+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;
- SSL_CIPHER *c;
+ 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
- if (s->compress_meth == 0)
- *comp=NULL;
- else if (ssl_comp_methods == NULL)
- {
- /* bad */
- *comp=NULL;
- }
- else
+ *comp=NULL;
+ ctmp.id=s->compress_meth;
+ if (ssl_comp_methods != NULL)
{
-
- ctmp.id=s->compress_meth;
- i=sk_find(ssl_comp_methods,(char *)&ctmp);
+ i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp);
if (i >= 0)
- *comp=(SSL_COMP *)sk_value(ssl_comp_methods,i);
+ *comp=sk_SSL_COMP_value(ssl_comp_methods,i);
else
*comp=NULL;
}
if ((enc == NULL) || (md == NULL)) return(0);
- switch (c->algorithms & SSL_ENC_MASK)
+ switch (c->algorithm_enc)
{
case SSL_DES:
i=SSL_ENC_DES_IDX;
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;
*enc=ssl_cipher_methods[i];
}
- switch (c->algorithms & SSL_MAC_MASK)
+ switch (c->algorithm_mac)
{
case SSL_MD5:
i=SSL_MD_MD5_IDX;
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;
+ {
+ *md=NULL;
+ if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;
+ if (mac_secret_size!=NULL) *mac_secret_size = 0;
+ if (c->algorithm_mac == SSL_AEAD)
+ mac_pkey_type = NULL;
+ }
else
+ {
*md=ssl_digest_methods[i];
+ if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i];
+ if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i];
+ }
+
+ if ((*enc != NULL) &&
+ (*md != NULL || (EVP_CIPHER_flags(*enc)&EVP_CIPH_FLAG_AEAD_CIPHER)) &&
+ (!mac_pkey_type||*mac_pkey_type != NID_undef))
+ {
+ const EVP_CIPHER *evp;
+
+ if (s->ssl_version>>8 != TLS1_VERSION_MAJOR ||
+ s->ssl_version < TLS1_VERSION)
+ return 1;
- if ((*enc != NULL) && (*md != NULL))
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode())
+ return 1;
+#endif
+
+ if (c->algorithm_enc == SSL_RC4 &&
+ c->algorithm_mac == SSL_MD5 &&
+ (evp=EVP_get_cipherbyname("RC4-HMAC-MD5")))
+ *enc = evp, *md = NULL;
+ else if (c->algorithm_enc == SSL_AES128 &&
+ c->algorithm_mac == SSL_SHA1 &&
+ (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
+ *enc = evp, *md = NULL;
+ else if (c->algorithm_enc == SSL_AES256 &&
+ c->algorithm_mac == SSL_SHA1 &&
+ (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
+ *enc = evp, *md = NULL;
return(1);
+ }
else
return(0);
}
+int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
+{
+ if (idx <0||idx>=SSL_MD_NUM_IDX)
+ {
+ return 0;
+ }
+ *mask = ssl_handshake_digest_flag[idx];
+ if (*mask)
+ *md = ssl_digest_methods[idx];
+ else
+ *md = NULL;
+ return 1;
+}
+
#define ITEM_SEP(a) \
(((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
-static void ll_append_tail(head,curr,tail)
-CIPHER_ORDER **head,*curr,**tail;
+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) /* should always be true */
+ if (curr->next != NULL)
curr->next->prev=curr->prev;
(*tail)->next=curr;
curr->prev= *tail;
*tail=curr;
}
-STACK *ssl_create_cipher_list(ssl_method,cipher_list,cipher_list_by_id,str)
-SSL_METHOD *ssl_method;
-STACK **cipher_list,**cipher_list_by_id;
-char *str;
+static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
+ CIPHER_ORDER **tail)
{
- SSL_CIPHER *c;
- char *l;
- STACK *ret=NULL,*ok=NULL;
-#define CL_BUF 40
- char buf[CL_BUF];
- char *tmp_str=NULL;
- unsigned long mask,algorithms,ma;
- char *start;
- int i,j,k,num=0,ch,multi;
- unsigned long al;
- STACK *ca_list=NULL;
- int current_x,num_x;
- CIPHER_CHOICE *ops=NULL;
- CIPHER_ORDER *list=NULL,*head=NULL,*tail=NULL,*curr,*tail2,*curr2;
- int list_num;
- int type;
- SSL_CIPHER c_tmp,*cp;
-
- if (str == NULL) return(NULL);
-
- if (strncmp(str,"DEFAULT",7) == 0)
- {
- i=strlen(str)+2+strlen(SSL_DEFAULT_CIPHER_LIST);
- if ((tmp_str=Malloc(i)) == NULL)
- {
- SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- strcpy(tmp_str,SSL_DEFAULT_CIPHER_LIST);
- strcat(tmp_str,":");
- strcat(tmp_str,&(str[7]));
- str=tmp_str;
- }
- if (init_ciphers) load_ciphers();
-
- num=ssl_method->num_ciphers();
-
- if ((ret=(STACK *)sk_new(NULL)) == NULL) goto err;
- if ((ca_list=(STACK *)sk_new(cmp_by_name)) == NULL) goto err;
+ 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;
+ }
- mask =SSL_kFZA;
-#ifdef NO_RSA
- mask|=SSL_aRSA|SSL_kRSA;
+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 NO_DSA
- mask|=SSL_aDSS;
+#ifdef OPENSSL_NO_DSA
+ *auth |= SSL_aDSS;
#endif
-#ifdef NO_DH
- mask|=SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH;
+#ifdef OPENSSL_NO_DH
+ *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH;
+ *auth |= SSL_aDH;
#endif
-
-#ifndef SSL_ALLOW_ENULL
- mask|=SSL_eNULL;
+#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;
- mask|=(ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL)?SSL_DES :0;
- mask|=(ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL)?SSL_3DES:0;
- mask|=(ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL)?SSL_RC4 :0;
- mask|=(ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL)?SSL_RC2 :0;
- mask|=(ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL)?SSL_IDEA:0;
- mask|=(ssl_cipher_methods[SSL_ENC_eFZA_IDX] == NULL)?SSL_eFZA:0;
+ }
- mask|=(ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL)?SSL_MD5 :0;
- mask|=(ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL)?SSL_SHA1:0;
+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;
- if ((list=(CIPHER_ORDER *)Malloc(sizeof(CIPHER_ORDER)*num)) == NULL)
- goto err;
+ /*
+ * 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 */
- list_num=0;
- for (i=0; i<num; i++)
+ co_list_num = 0; /* actual count of ciphers */
+ for (i = 0; i < num_of_ciphers; i++)
{
- c=ssl_method->get_cipher((unsigned int)i);
+ c = ssl_method->get_cipher(i);
/* drop those that use any of that is not available */
- if ((c != NULL) && c->valid && !(c->algorithms & mask))
+ 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))
{
- list[list_num].cipher=c;
- list[list_num].next=NULL;
- list[list_num].prev=NULL;
- list[list_num].active=0;
- list_num++;
+ 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;
+ */
}
}
-
- for (i=1; i<list_num-1; i++)
+
+ /*
+ * Prepare linked list from list entries
+ */
+ if (co_list_num > 0)
{
- list[i].prev= &(list[i-1]);
- list[i].next= &(list[i+1]);
+ 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];
}
- if (list_num > 0)
+ }
+
+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)
{
- head= &(list[0]);
- head->prev=NULL;
- head->next= &(list[1]);
- tail= &(list[list_num-1]);
- tail->prev= &(list[list_num-2]);
- tail->next=NULL;
+ *ca_curr = ciph_curr->cipher;
+ ca_curr++;
+ ciph_curr = ciph_curr->next;
}
- /* special case */
- cipher_aliases[0].algorithms= ~mask;
-
- /* get the aliases */
- k=sizeof(cipher_aliases)/sizeof(SSL_CIPHER);
- for (j=0; j<k; j++)
+ /*
+ * 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++)
{
- al=cipher_aliases[j].algorithms;
- /* Drop those that are not relevent */
- if ((al & mask) == al) continue;
- if (!sk_push(ca_list,(char *)&(cipher_aliases[j]))) goto err;
+ 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_list now holds a 'stack' of SSL_CIPHERS, some real, some
- * 'aliases' */
+ *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 */
- /* how many parameters are there? */
- num=1;
- for (l=str; *l; l++)
- if (ITEM_SEP(*l))
- num++;
- ops=(CIPHER_CHOICE *)Malloc(sizeof(CIPHER_CHOICE)*num);
- if (ops == NULL) goto err;
- memset(ops,0,sizeof(CIPHER_CHOICE)*num);
+ head = *head_p;
+ tail = *tail_p;
- /* we now parse the input string and create our operations */
- l=str;
- i=0;
- current_x=0;
+ if (reverse)
+ {
+ curr = tail;
+ last = head;
+ }
+ else
+ {
+ curr = head;
+ last = tail;
+ }
+ curr2 = curr;
for (;;)
{
- ch= *l;
+ 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;
+ }
- if (ch == '\0') break;
+#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 == '-')
- { j=CIPHER_DEL; l++; }
+ { rule = CIPHER_DEL; l++; }
else if (ch == '+')
- { j=CIPHER_ORD; l++; }
+ { rule = CIPHER_ORD; l++; }
else if (ch == '!')
- { j=CIPHER_KILL; l++; }
- else
- { j=CIPHER_ADD; }
+ { rule = CIPHER_KILL; l++; }
+ else if (ch == '@')
+ { rule = CIPHER_SPECIAL; l++; }
+ else
+ { rule = CIPHER_ADD; }
if (ITEM_SEP(ch))
{
l++;
continue;
}
- ops[current_x].type=j;
- ops[current_x].algorithms=0;
- ops[current_x].mask=0;
- start=l;
+ alg_mkey = 0;
+ alg_auth = 0;
+ alg_enc = 0;
+ alg_mac = 0;
+ alg_ssl = 0;
+ algo_strength = 0;
+
for (;;)
{
- ch= *l;
- i=0;
+ 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
{
- buf[i]=ch;
- ch= *(++l);
- i++;
- if (i >= (CL_BUF-2)) break;
+ ch = *(++l);
+ buflen++;
}
- buf[i]='\0';
+
+ 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 == '+')
else
multi=0;
- c_tmp.name=buf;
- j=sk_find(ca_list,(char *)&c_tmp);
- if (j < 0)
- goto end_loop;
-
- cp=(SSL_CIPHER *)sk_value(ca_list,j);
- ops[current_x].algorithms|=cp->algorithms;
- /* We add the SSL_SSL_MASK so we can match the
- * SSLv2 and SSLv3 versions of RC4-MD5 */
- ops[current_x].mask|=cp->mask;
- if (!multi) break;
- }
- current_x++;
- if (ch == '\0') break;
-end_loop:
- /* Make sure we scan until the next valid start point */
- while ((*l != '\0') && ITEM_SEP(*l))
- l++;
- }
-
- num_x=current_x;
- current_x=0;
-
- /* We will now process the list of ciphers, once for each category, to
- * decide what we should do with it. */
- for (j=0; j<num_x; j++)
- {
- algorithms=ops[j].algorithms;
- type=ops[j].type;
- mask=ops[j].mask;
+ /*
+ * 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++;
+ }
- curr=head;
- curr2=head;
- tail2=tail;
- for (;;)
- {
- if ((curr == NULL) || (curr == tail2)) break;
- curr=curr2;
- curr2=curr->next;
+ if (!found)
+ break; /* ignore this entry */
- cp=curr->cipher;
- ma=mask & cp->algorithms;
- if ((ma == 0) || ((ma & algorithms) != ma))
+ if (ca_list[j]->algorithm_mkey)
{
- /* does not apply */
- continue;
+ if (alg_mkey)
+ {
+ alg_mkey &= ca_list[j]->algorithm_mkey;
+ if (!alg_mkey) { found = 0; break; }
+ }
+ else
+ alg_mkey = ca_list[j]->algorithm_mkey;
}
- /* add the cipher if it has not been added yet. */
- if (type == CIPHER_ADD)
+ 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 (!curr->active)
+ if (alg_enc)
{
- ll_append_tail(&head,curr,&tail);
- curr->active=1;
+ 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;
}
- /* Move the added cipher to this location */
- else if (type == CIPHER_ORD)
+
+ if (ca_list[j]->algo_strength & SSL_EXP_MASK)
{
- if (curr->active)
+ if (algo_strength & SSL_EXP_MASK)
{
- ll_append_tail(&head,curr,&tail);
+ 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;
}
- else if (type == CIPHER_DEL)
- curr->active=0;
- if (type == CIPHER_KILL)
+
+ if (ca_list[j]->algo_strength & SSL_STRONG_MASK)
{
- if (head == curr)
- head=curr->next;
+ 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
- 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;
+ algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK;
+ }
+
+ if (ca_list[j]->valid)
+ {
+ /* explicit ciphersuite found; its protocol version
+ * does not become part of the search pattern!*/
+
+ cipher_id = ca_list[j]->id;
+ }
+ else
+ {
+ /* not an explicit ciphersuite; only in this case, the
+ * protocol version is considered part of the search pattern */
+
+ if (ca_list[j]->algorithm_ssl)
+ {
+ if (alg_ssl)
+ {
+ alg_ssl &= ca_list[j]->algorithm_ssl;
+ if (!alg_ssl) { found = 0; break; }
+ }
+ else
+ alg_ssl = ca_list[j]->algorithm_ssl;
+ }
}
+
+ if (!multi) break;
+ }
+
+ /*
+ * Ok, we have the rule, now apply it
+ */
+ if (rule == CIPHER_SPECIAL)
+ { /* special command */
+ ok = 0;
+ if ((buflen == 8) &&
+ !strncmp(buf, "STRENGTH", 8))
+ ok = ssl_cipher_strength_sort(head_p, tail_p);
+ else
+ SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
+ SSL_R_INVALID_COMMAND);
+ if (ok == 0)
+ retval = 0;
+ /*
+ * We do not support any "multi" options
+ * together with "@", so throw away the
+ * rest of the command, if any left, until
+ * end or ':' is found.
+ */
+ while ((*l != '\0') && !ITEM_SEP(*l))
+ l++;
}
+ else if (found)
+ {
+ ssl_cipher_apply_rule(cipher_id,
+ alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength,
+ rule, -1, head_p, tail_p);
+ }
+ else
+ {
+ while ((*l != '\0') && !ITEM_SEP(*l))
+ l++;
+ }
+ if (*l == '\0') break; /* done */
+ }
+
+ return(retval);
+ }
+
+static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c,
+ const char **prule_str)
+ {
+ unsigned int suiteb_flags = 0;
+ if (!strcmp(*prule_str, "SUITEB128"))
+ suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
+ else if (!strcmp(*prule_str, "SUITEB128ONLY"))
+ suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY;
+ else if (!strcmp(*prule_str, "SUITEB192"))
+ 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 */
+
+ switch(suiteb_flags)
+ {
+ case SSL_CERT_FLAG_SUITEB_128_LOS:
+ *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;
+ }
+ return 1;
+ }
- for (curr=head; curr != NULL; curr=curr->next)
+
+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;
+
+ if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
+ 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)
+ {
+#ifdef OPENSSL_FIPS
+ if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS))
+#else
if (curr->active)
+#endif
{
- sk_push(ret,(char *)curr->cipher);
+ 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 */
- if (cipher_list != NULL)
- {
- if (*cipher_list != NULL)
- sk_free(*cipher_list);
- *cipher_list=ret;
- }
-
- if (cipher_list_by_id != NULL)
+ tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
+ if (tmp_cipher_list == NULL)
{
- if (*cipher_list_by_id != NULL)
- sk_free(*cipher_list_by_id);
- *cipher_list_by_id=sk_dup(ret);
+ sk_SSL_CIPHER_free(cipherstack);
+ return NULL;
}
-
- if ( (cipher_list_by_id == NULL) ||
- (*cipher_list_by_id == NULL) ||
- (cipher_list == NULL) ||
- (*cipher_list == NULL))
- goto err;
- sk_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
-
- ok=ret;
- ret=NULL;
-err:
- if (tmp_str) Free(tmp_str);
- if (ops != NULL) Free(ops);
- if (ret != NULL) sk_free(ret);
- if (ca_list != NULL) sk_free(ca_list);
- if (list != NULL) Free(list);
- return(ok);
+ 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(cipher,buf,len)
-SSL_CIPHER *cipher;
-char *buf;
-int len;
+char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
{
- int is_export,pkl,kl;\r
- char *ver,*exp;
- char *kx,*au,*enc,*mac;
- unsigned long alg,alg2;
- static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
-
- alg=cipher->algorithms;
- alg2=cipher->algorithm2;
+ 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;
- is_export=SSL_IS_EXPORT(alg);\r
- pkl=SSL_EXPORT_PKEYLENGTH(alg);
- kl=SSL_EXPORT_KEYLENGTH(alg);
- exp=is_export?" export":"";\r
+ alg2=cipher->algorithm2;
- if (alg & SSL_SSLV2)
+ 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_SSLV3)
+ else if (alg_ssl & SSL_SSLV3)
ver="SSLv3";
+ else if (alg_ssl & SSL_TLSV1_2)
+ ver="TLSv1.2";
else
ver="unknown";
- switch (alg&SSL_MKEY_MASK)
+ switch (alg_mkey)
{
case SSL_kRSA:
- kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";\r
+ kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
break;
case SSL_kDHr:
kx="DH/RSA";
case SSL_kDHd:
kx="DH/DSS";
break;
- case SSL_kFZA:
- kx="Fortezza";
+ case SSL_kKRB5:
+ kx="KRB5";
break;
case SSL_kEDH:
- kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH";\r
+ kx=is_export?(pkl == 512 ? "DH(512)" : "DH(1024)"):"DH";
+ break;
+ case SSL_kECDHr:
+ kx="ECDH/RSA";
+ break;
+ case SSL_kECDHe:
+ kx="ECDH/ECDSA";
+ break;
+ case SSL_kEECDH:
+ kx="ECDH";
+ break;
+ case SSL_kPSK:
+ kx="PSK";
+ break;
+ case SSL_kSRP:
+ kx="SRP";
break;
default:
kx="unknown";
}
- switch (alg&SSL_AUTH_MASK)
+ switch (alg_auth)
{
case SSL_aRSA:
au="RSA";
case SSL_aDH:
au="DH";
break;
- case SSL_aFZA:
+ 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&SSL_ENC_MASK)
+ switch (alg_enc)
{
case SSL_DES:
- enc=(is_export && kl == 5)?"DES(40)":"DES(56)";\r
+ 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)")\r
+ 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)";\r
+ enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)";
break;
case SSL_IDEA:
enc="IDEA(128)";
break;
- case SSL_eFZA:
- enc="Fortezza";
- 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;
default:
enc="unknown";
break;
}
- switch (alg&SSL_MAC_MASK)
+ switch (alg_mac)
{
case SSL_MD5:
mac="MD5";
case SSL_SHA1:
mac="SHA1";
break;
+ case SSL_SHA256:
+ mac="SHA256";
+ break;
+ case SSL_SHA384:
+ mac="SHA384";
+ break;
+ case SSL_AEAD:
+ mac="AEAD";
+ break;
default:
mac="unknown";
break;
if (buf == NULL)
{
- buf=Malloc(128);
- if (buf == NULL) return("Malloc Error");
+ len=128;
+ buf=OPENSSL_malloc(len);
+ if (buf == NULL) return("OPENSSL_malloc Error");
}
else if (len < 128)
return("Buffer too small");
- sprintf(buf,format,cipher->name,ver,kx,au,enc,mac,exp);
+#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(c)
-SSL_CIPHER *c;
+char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
{
int i;
}
/* return the actual cipher being used */
-char *SSL_CIPHER_get_name(c)
-SSL_CIPHER *c;
+const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
{
if (c != NULL)
return(c->name);
return("(NONE)");
}
-/* number of bits for symetric cipher */
-int SSL_CIPHER_get_bits(c,alg_bits)
-SSL_CIPHER *c;
-int *alg_bits;
+/* number of bits for symmetric cipher */
+int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
{
- int ret=0,a=0;
- EVP_CIPHER *enc;
- EVP_MD *md;
- SSL_SESSION ss;
+ int ret=0;
if (c != NULL)
{
- ss.cipher=c;
- if (!ssl_cipher_get_evp(&ss,&enc,&md,NULL))
- return(0);
-
- a=EVP_CIPHER_key_length(enc)*8;
-
- if (SSL_C_IS_EXPORT(c))
- {
- ret=SSL_C_EXPORT_KEYLENGTH(c)*8;
- }
- else
- {
- if (c->algorithm2 & SSL2_CF_8_BYTE_ENC)
- ret=64;
- else
- ret=a;
- }
+ if (alg_bits != NULL) *alg_bits = c->alg_bits;
+ ret = c->strength_bits;
}
-
- if (alg_bits != NULL) *alg_bits=a;
-
return(ret);
}
-SSL_COMP *ssl3_comp_find(sk,n)
-STACK *sk;
-int n;
+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_num(sk);
+ nn=sk_SSL_COMP_num(sk);
for (i=0; i<nn; i++)
{
- ctmp=(SSL_COMP *)sk_value(sk,i);
+ ctmp=sk_SSL_COMP_value(sk,i);
if (ctmp->id == n)
return(ctmp);
}
return(NULL);
}
-static int sk_comp_cmp(a,b)
-SSL_COMP **a,**b;
+#ifdef OPENSSL_NO_COMP
+void *SSL_COMP_get_compression_methods(void)
{
- return((*a)->id-(*b)->id);
+ return NULL;
+ }
+int SSL_COMP_add_compression_method(int id, void *cm)
+ {
+ return 1;
}
-STACK *SSL_COMP_get_compression_methods()
+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(id,cm)
-int id;
-COMP_METHOD *cm;
+int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
{
SSL_COMP *comp;
- STACK *sk;
- comp=(SSL_COMP *)Malloc(sizeof(SSL_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;
- if (ssl_comp_methods == NULL)
- sk=ssl_comp_methods=sk_new(sk_comp_cmp);
- else
- sk=ssl_comp_methods;
- if ((sk == NULL) || !sk_push(sk,(char *)comp))
+ 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(0);
+ return(1);
}
else
- return(1);
+ {
+ MemCheck_on();
+ return(0);
+ }
}
+const char *SSL_COMP_get_name(const COMP_METHOD *comp)
+ {
+ if (comp)
+ return comp->name;
+ return NULL;
+ }
+
+#endif
projects / openssl.git / blobdiff