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-rw-r--r--openssl/ssl/ssl_ciph.c1019
1 files changed, 690 insertions, 329 deletions
diff --git a/openssl/ssl/ssl_ciph.c b/openssl/ssl/ssl_ciph.c
index 52f91cfe6..bee3507ea 100644
--- a/openssl/ssl/ssl_ciph.c
+++ b/openssl/ssl/ssl_ciph.c
@@ -56,7 +56,7 @@
* [including the GNU Public Licence.]
*/
/* ====================================================================
- * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
+ * 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
@@ -113,12 +113,41 @@
* 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
@@ -126,18 +155,18 @@
#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_AES128_IDX 7
-#define SSL_ENC_AES256_IDX 8
-#define SSL_ENC_CAMELLIA128_IDX 9
-#define SSL_ENC_CAMELLIA256_IDX 10
+#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,NULL,NULL,NULL,NULL,NULL,NULL,
};
#define SSL_COMP_NULL_IDX 0
@@ -148,9 +177,30 @@ 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
+#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,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
@@ -161,72 +211,144 @@ static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
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 const SSL_CIPHER cipher_aliases[]={
- /* Don't include eNULL unless specifically enabled. */
- /* Don't include ECC in ALL because these ciphers are not yet official. */
- {0,SSL_TXT_ALL, 0,SSL_ALL & ~SSL_eNULL & ~SSL_kECDH & ~SSL_kECDHE, SSL_ALL ,0,0,0,SSL_ALL,SSL_ALL}, /* must be first */
- /* TODO: COMPLEMENT OF ALL and COMPLEMENT OF DEFAULT do not have ECC cipher suites handled properly. */
- {0,SSL_TXT_CMPALL,0,SSL_eNULL,0,0,0,0,SSL_ENC_MASK,0}, /* COMPLEMENT OF ALL */
- {0,SSL_TXT_CMPDEF,0,SSL_ADH, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_kKRB5,0,SSL_kKRB5,0,0,0,0,SSL_MKEY_MASK,0}, /* VRS Kerberos5 */
- {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_DH, 0,SSL_DH, 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_ECC, 0,(SSL_kECDH|SSL_kECDHE), 0,0,0,0,SSL_MKEY_MASK,0},
- {0,SSL_TXT_EDH, 0,SSL_EDH, 0,0,0,0,SSL_MKEY_MASK|SSL_AUTH_MASK,0},
- {0,SSL_TXT_aKRB5,0,SSL_aKRB5,0,0,0,0,SSL_AUTH_MASK,0}, /* VRS Kerberos5 */
- {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aNULL,0,SSL_aNULL,0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_aDH, 0,SSL_aDH, 0,0,0,0,SSL_AUTH_MASK,0},
- {0,SSL_TXT_DSS, 0,SSL_DSS, 0,0,0,0,SSL_AUTH_MASK,0},
-
- {0,SSL_TXT_DES, 0,SSL_DES, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_3DES,0,SSL_3DES, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_RC4, 0,SSL_RC4, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_RC2, 0,SSL_RC2, 0,0,0,0,SSL_ENC_MASK,0},
-#ifndef OPENSSL_NO_IDEA
- {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,0,0,0,SSL_ENC_MASK,0},
-#endif
- {0,SSL_TXT_SEED,0,SSL_SEED, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_eNULL,0,SSL_eNULL,0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_AES, 0,SSL_AES, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_CAMELLIA,0,SSL_CAMELLIA, 0,0,0,0,SSL_ENC_MASK,0},
-
- {0,SSL_TXT_MD5, 0,SSL_MD5, 0,0,0,0,SSL_MAC_MASK,0},
- {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,0,0,0,SSL_MAC_MASK,0},
- {0,SSL_TXT_SHA, 0,SSL_SHA, 0,0,0,0,SSL_MAC_MASK,0},
-
- {0,SSL_TXT_NULL,0,SSL_NULL, 0,0,0,0,SSL_ENC_MASK,0},
- {0,SSL_TXT_KRB5,0,SSL_KRB5, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
- {0,SSL_TXT_RSA, 0,SSL_RSA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
- {0,SSL_TXT_ADH, 0,SSL_ADH, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK,0},
- {0,SSL_TXT_FZA, 0,SSL_FZA, 0,0,0,0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK,0},
-
- {0,SSL_TXT_SSLV2, 0,SSL_SSLV2, 0,0,0,0,SSL_SSL_MASK,0},
- {0,SSL_TXT_SSLV3, 0,SSL_SSLV3, 0,0,0,0,SSL_SSL_MASK,0},
- {0,SSL_TXT_TLSV1, 0,SSL_TLSV1, 0,0,0,0,SSL_SSL_MASK,0},
-
- {0,SSL_TXT_EXP ,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK},
- {0,SSL_TXT_EXPORT,0, 0,SSL_EXPORT, 0,0,0,0,SSL_EXP_MASK},
- {0,SSL_TXT_EXP40, 0, 0, SSL_EXP40, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_EXP56, 0, 0, SSL_EXP56, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_LOW, 0, 0, SSL_LOW, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_MEDIUM,0, 0,SSL_MEDIUM, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_HIGH, 0, 0, SSL_HIGH, 0,0,0,0,SSL_STRONG_MASK},
- {0,SSL_TXT_FIPS, 0, 0, SSL_FIPS, 0,0,0,0,SSL_FIPS|SSL_STRONG_NONE},
+ /* "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)
{
@@ -252,16 +374,37 @@ void ssl_load_ciphers(void)
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,
@@ -316,10 +459,10 @@ static void load_builtin_compressions(void)
#endif
int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
- const EVP_MD **md, SSL_COMP **comp)
+ 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);
@@ -344,7 +487,7 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
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;
@@ -364,26 +507,24 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
case SSL_eNULL:
i=SSL_ENC_NULL_IDX;
break;
- case SSL_AES:
- switch(c->alg_bits)
- {
- case 128: i=SSL_ENC_AES128_IDX; break;
- case 256: i=SSL_ENC_AES256_IDX; break;
- default: i=-1; break;
- }
+ case SSL_AES128:
+ i=SSL_ENC_AES128_IDX;
break;
- case SSL_CAMELLIA:
- switch(c->alg_bits)
- {
- case 128: i=SSL_ENC_CAMELLIA128_IDX; break;
- case 256: i=SSL_ENC_CAMELLIA256_IDX; break;
- default: i=-1; 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;
@@ -399,7 +540,7 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
*enc=ssl_cipher_methods[i];
}
- switch (c->algorithms & SSL_MAC_MASK)
+ switch (c->algorithm_mac)
{
case SSL_MD5:
i=SSL_MD_MD5_IDX;
@@ -407,21 +548,48 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
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;
+ {
+ *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))
+ 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) == ','))
@@ -433,7 +601,7 @@ static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
*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;
@@ -441,69 +609,105 @@ static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
*tail=curr;
}
-struct disabled_masks { /* This is a kludge no longer needed with OpenSSL 0.9.9,
- * where 128-bit and 256-bit algorithms simply will get
- * separate bits. */
- unsigned long mask; /* everything except m256 */
- unsigned long m256; /* applies to 256-bit algorithms only */
-};
+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 struct disabled_masks ssl_cipher_get_disabled(void)
+static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl)
{
- unsigned long mask;
- unsigned long m256;
- struct disabled_masks ret;
+ *mkey = 0;
+ *auth = 0;
+ *enc = 0;
+ *mac = 0;
+ *ssl = 0;
- mask = SSL_kFZA;
#ifdef OPENSSL_NO_RSA
- mask |= SSL_aRSA|SSL_kRSA;
+ *mkey |= SSL_kRSA;
+ *auth |= SSL_aRSA;
#endif
#ifdef OPENSSL_NO_DSA
- mask |= SSL_aDSS;
+ *auth |= SSL_aDSS;
#endif
+ *mkey |= SSL_kDHr|SSL_kDHd; /* no such ciphersuites supported! */
+ *auth |= SSL_aDH;
#ifdef OPENSSL_NO_DH
- mask |= SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH;
+ *mkey |= SSL_kDHr|SSL_kDHd|SSL_kEDH;
+ *auth |= SSL_aDH;
#endif
#ifdef OPENSSL_NO_KRB5
- mask |= SSL_kKRB5|SSL_aKRB5;
+ *mkey |= SSL_kKRB5;
+ *auth |= SSL_aKRB5;
+#endif
+#ifdef OPENSSL_NO_ECDSA
+ *auth |= SSL_aECDSA;
#endif
#ifdef OPENSSL_NO_ECDH
- mask |= SSL_kECDH|SSL_kECDHE;
+ *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
- mask |= SSL_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;
- 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_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED: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;
-
- /* finally consider algorithms where mask and m256 differ */
- m256 = mask;
- mask |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES:0;
- mask |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA:0;
- m256 |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES:0;
- m256 |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA:0;
-
- ret.mask = mask;
- ret.m256 = m256;
- return ret;
}
static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
- int num_of_ciphers, unsigned long mask, unsigned long m256,
- CIPHER_ORDER *co_list, CIPHER_ORDER **head_p,
- CIPHER_ORDER **tail_p)
+ 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;
- SSL_CIPHER *c;
+ const SSL_CIPHER *c;
/*
* We have num_of_ciphers descriptions compiled in, depending on the
@@ -517,14 +721,13 @@ static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
for (i = 0; i < num_of_ciphers; i++)
{
c = ssl_method->get_cipher(i);
-#define IS_MASKED(c) ((c)->algorithms & (((c)->alg_bits == 256) ? m256 : mask))
/* drop those that use any of that is not available */
-#ifdef OPENSSL_FIPS
- if ((c != NULL) && c->valid && !IS_MASKED(c)
- && (!FIPS_mode() || (c->algo_strength & SSL_FIPS)))
-#else
- if ((c != NULL) && c->valid && !IS_MASKED(c))
-#endif
+ 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;
@@ -532,7 +735,7 @@ static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
co_list[co_list_num].active = 0;
co_list_num++;
#ifdef KSSL_DEBUG
- printf("\t%d: %s %lx %lx\n",i,c->name,c->id,c->algorithms);
+ 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;
@@ -543,29 +746,45 @@ static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
/*
* Prepare linked list from list entries
*/
- 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]);
- }
if (co_list_num > 0)
{
- (*head_p) = &(co_list[0]);
- (*head_p)->prev = NULL;
- (*head_p)->next = &(co_list[1]);
- (*tail_p) = &(co_list[co_list_num - 1]);
- (*tail_p)->prev = &(co_list[co_list_num - 2]);
- (*tail_p)->next = NULL;
+ 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(SSL_CIPHER **ca_list,
- int num_of_group_aliases, unsigned long mask,
+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;
- SSL_CIPHER **ca_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
@@ -581,84 +800,118 @@ static void ssl_cipher_collect_aliases(SSL_CIPHER **ca_list,
/*
* Now we add the available ones from the cipher_aliases[] table.
- * They represent either an algorithm, that must be fully
- * supported (not match any bit in mask) or represent a cipher
- * strength value (will be added in any case because algorithms=0).
+ * 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++)
{
- if ((i == 0) || /* always fetch "ALL" */
- !(cipher_aliases[i].algorithms & mask))
- {
- *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
- ca_curr++;
- }
+ 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 ssl_version,
- unsigned long algorithms, unsigned long mask,
- unsigned long algo_strength, unsigned long mask_strength,
- int rule, int strength_bits, CIPHER_ORDER *co_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, *tail2;
- SSL_CIPHER *cp;
- unsigned long ma, ma_s;
+ 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 (%d)\n",
- rule, algorithms, mask, algo_strength, mask_strength,
- strength_bits);
+ 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
- curr = head = *head_p;
- curr2 = head;
- tail2 = tail = *tail_p;
+ 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 == tail2)) break;
+ if ((curr == NULL) || (curr == last)) break;
curr = curr2;
- curr2 = curr->next;
+ curr2 = reverse ? curr->prev : curr->next;
cp = curr->cipher;
- /* If explicit cipher suite, match only that one for its own protocol version.
- * Usual selection criteria will be used for similar ciphersuites from other version! */
-
- if (cipher_id && (cp->algorithms & SSL_SSL_MASK) == ssl_version)
+ /*
+ * Selection criteria is either the value of strength_bits
+ * or the algorithms used.
+ */
+ if (strength_bits >= 0)
{
- if (cp->id != cipher_id)
+ if (strength_bits != cp->strength_bits)
continue;
}
-
- /*
- * Selection criteria is either the number of strength_bits
- * or the algorithm used.
- */
- else if (strength_bits == -1)
+ else
{
- ma = mask & cp->algorithms;
- ma_s = mask_strength & cp->algo_strength;
-
#ifdef CIPHER_DEBUG
- printf("\nName: %s:\nAlgo = %08lx Algo_strength = %08lx\nMask = %08lx Mask_strength %08lx\n", cp->name, cp->algorithms, cp->algo_strength, mask, mask_strength);
- printf("ma = %08lx ma_s %08lx, ma&algo=%08lx, ma_s&algos=%08lx\n", ma, ma_s, ma&algorithms, ma_s&algo_strength);
+ 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
- /*
- * Select: if none of the mask bit was met from the
- * cipher or not all of the bits were met, the
- * selection does not apply.
- */
- if (((ma == 0) && (ma_s == 0)) ||
- ((ma & algorithms) != ma) ||
- ((ma_s & algo_strength) != ma_s))
- continue; /* does not apply */
+
+ 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;
}
- else if (strength_bits != cp->strength_bits)
- continue; /* does not apply */
#ifdef CIPHER_DEBUG
printf("Action = %d\n", rule);
@@ -667,38 +920,37 @@ static void ssl_cipher_apply_rule(unsigned long cipher_id, unsigned long ssl_ver
/* add the cipher if it has not been added yet. */
if (rule == CIPHER_ADD)
{
+ /* reverse == 0 */
if (!curr->active)
{
- int add_this_cipher = 1;
-
- if (((cp->algorithms & (SSL_kECDHE|SSL_kECDH|SSL_aECDSA)) != 0))
- {
- /* Make sure "ECCdraft" ciphersuites are activated only if
- * *explicitly* requested, but not implicitly (such as
- * as part of the "AES" alias). */
-
- add_this_cipher = (mask & (SSL_kECDHE|SSL_kECDH|SSL_aECDSA)) != 0 || cipher_id != 0;
- }
-
- if (add_this_cipher)
- {
- ll_append_tail(&head, curr, &tail);
- curr->active = 1;
- }
+ 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)
- curr->active = 0;
+ {
+ /* 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
@@ -719,8 +971,7 @@ static void ssl_cipher_apply_rule(unsigned long cipher_id, unsigned long ssl_ver
*tail_p = tail;
}
-static int ssl_cipher_strength_sort(CIPHER_ORDER *co_list,
- CIPHER_ORDER **head_p,
+static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p,
CIPHER_ORDER **tail_p)
{
int max_strength_bits, i, *number_uses;
@@ -743,10 +994,10 @@ static int ssl_cipher_strength_sort(CIPHER_ORDER *co_list,
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));
/*
@@ -765,21 +1016,20 @@ static int ssl_cipher_strength_sort(CIPHER_ORDER *co_list,
*/
for (i = max_strength_bits; i >= 0; i--)
if (number_uses[i] > 0)
- ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, CIPHER_ORD, i,
- co_list, head_p, tail_p);
+ 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 *co_list, CIPHER_ORDER **head_p,
- CIPHER_ORDER **tail_p, SSL_CIPHER **ca_list)
+ CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p,
+ const SSL_CIPHER **ca_list)
{
- unsigned long algorithms, mask, algo_strength, mask_strength;
+ unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength;
const char *l, *start, *buf;
int j, multi, found, rule, retval, ok, buflen;
- unsigned long cipher_id = 0, ssl_version = 0;
+ unsigned long cipher_id = 0;
char ch;
retval = 1;
@@ -807,7 +1057,12 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
continue;
}
- algorithms = mask = algo_strength = mask_strength = 0;
+ alg_mkey = 0;
+ alg_auth = 0;
+ alg_enc = 0;
+ alg_mac = 0;
+ alg_ssl = 0;
+ algo_strength = 0;
start=l;
for (;;)
@@ -868,10 +1123,9 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
* sufficient, we have to strncmp() anyway. (We cannot
* use strcmp(), because buf is not '\0' terminated.)
*/
- j = found = 0;
- cipher_id = 0;
- ssl_version = 0;
- while (ca_list[j])
+ j = found = 0;
+ cipher_id = 0;
+ while (ca_list[j])
{
if (!strncmp(buf, ca_list[j]->name, buflen) &&
(ca_list[j]->name[buflen] == '\0'))
@@ -882,31 +1136,100 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
else
j++;
}
+
if (!found)
break; /* ignore this entry */
- /* New algorithms:
- * 1 - any old restrictions apply outside new mask
- * 2 - any new restrictions apply outside old mask
- * 3 - enforce old & new where masks intersect
- */
- algorithms = (algorithms & ~ca_list[j]->mask) | /* 1 */
- (ca_list[j]->algorithms & ~mask) | /* 2 */
- (algorithms & ca_list[j]->algorithms); /* 3 */
- mask |= ca_list[j]->mask;
- algo_strength = (algo_strength & ~ca_list[j]->mask_strength) |
- (ca_list[j]->algo_strength & ~mask_strength) |
- (algo_strength & ca_list[j]->algo_strength);
- mask_strength |= ca_list[j]->mask_strength;
-
- /* explicit ciphersuite found */
+ 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;
- ssl_version = ca_list[j]->algorithms & SSL_SSL_MASK;
- break;
}
+ 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;
}
@@ -918,8 +1241,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
ok = 0;
if ((buflen == 8) &&
!strncmp(buf, "STRENGTH", 8))
- ok = ssl_cipher_strength_sort(co_list,
- head_p, tail_p);
+ ok = ssl_cipher_strength_sort(head_p, tail_p);
else
SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
SSL_R_INVALID_COMMAND);
@@ -936,9 +1258,9 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
}
else if (found)
{
- ssl_cipher_apply_rule(cipher_id, ssl_version, algorithms, mask,
- algo_strength, mask_strength, rule, -1,
- co_list, head_p, tail_p);
+ 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
{
@@ -957,12 +1279,11 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
const char *rule_str)
{
int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
- unsigned long disabled_mask;
- unsigned long disabled_m256;
+ 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;
- SSL_CIPHER **ca_list = NULL;
+ const SSL_CIPHER **ca_list = NULL;
/*
* Return with error if nothing to do.
@@ -974,12 +1295,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
* To reduce the work to do we only want to process the compiled
* in algorithms, so we first get the mask of disabled ciphers.
*/
- {
- struct disabled_masks d;
- d = ssl_cipher_get_disabled();
- disabled_mask = d.mask;
- disabled_m256 = d.m256;
- }
+ 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
@@ -997,8 +1313,52 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
return(NULL); /* Failure */
}
- ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, disabled_mask,
- disabled_m256, co_list, &head, &tail);
+ 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.
@@ -1010,8 +1370,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
*/
num_of_group_aliases = sizeof(cipher_aliases) / sizeof(SSL_CIPHER);
num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
- ca_list =
- (SSL_CIPHER **)OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
+ ca_list = OPENSSL_malloc(sizeof(SSL_CIPHER *) * num_of_alias_max);
if (ca_list == NULL)
{
OPENSSL_free(co_list);
@@ -1019,7 +1378,8 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
return(NULL); /* Failure */
}
ssl_cipher_collect_aliases(ca_list, num_of_group_aliases,
- (disabled_mask & disabled_m256), head);
+ disabled_mkey, disabled_auth, disabled_enc,
+ disabled_mac, disabled_ssl, head);
/*
* If the rule_string begins with DEFAULT, apply the default rule
@@ -1030,23 +1390,23 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
if (strncmp(rule_str,"DEFAULT",7) == 0)
{
ok = ssl_cipher_process_rulestr(SSL_DEFAULT_CIPHER_LIST,
- co_list, &head, &tail, ca_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, co_list, &head, &tail,
- ca_list);
+ ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list);
- OPENSSL_free(ca_list); /* Not needed anymore */
+ 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.
@@ -1063,11 +1423,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
*/
for (curr = head; curr != NULL; curr = curr->next)
{
-#ifdef OPENSSL_FIPS
- if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS))
-#else
if (curr->active)
-#endif
{
sk_SSL_CIPHER_push(cipherstack, curr->cipher);
#ifdef CIPHER_DEBUG
@@ -1091,22 +1447,28 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
*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(SSL_CIPHER *cipher, char *buf, int len)
+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,alg2,alg_s;
+ unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2,alg_s;
#ifdef KSSL_DEBUG
- static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx\n";
+ 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=cipher->algorithms;
+ 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;
+
alg_s=cipher->algo_strength;
alg2=cipher->algorithm2;
@@ -1115,14 +1477,14 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
kl=SSL_C_EXPORT_KEYLENGTH(cipher);
exp_str=is_export?" export":"";
- if (alg & SSL_SSLV2)
+ if (alg_ssl & SSL_SSLV2)
ver="SSLv2";
- else if (alg & SSL_SSLV3)
+ else if (alg_ssl & SSL_SSLV3)
ver="SSLv3";
else
ver="unknown";
- switch (alg&SSL_MKEY_MASK)
+ switch (alg_mkey)
{
case SSL_kRSA:
kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
@@ -1133,25 +1495,29 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
case SSL_kDHd:
kx="DH/DSS";
break;
- case SSL_kKRB5: /* VRS */
- case SSL_KRB5: /* VRS */
- kx="KRB5";
- 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";
break;
- case SSL_kECDH:
- case SSL_kECDHE:
- kx=is_export?"ECDH(<=163)":"ECDH";
+ 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&SSL_AUTH_MASK)
+ switch (alg_auth)
{
case SSL_aRSA:
au="RSA";
@@ -1162,23 +1528,27 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
case SSL_aDH:
au="DH";
break;
- case SSL_aKRB5: /* VRS */
- case SSL_KRB5: /* VRS */
- au="KRB5";
- 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)";
@@ -1196,39 +1566,30 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
case SSL_IDEA:
enc="IDEA(128)";
break;
- case SSL_eFZA:
- enc="Fortezza";
- break;
case SSL_eNULL:
enc="None";
break;
- case SSL_AES:
- switch(cipher->strength_bits)
- {
- case 128: enc="AES(128)"; break;
- case 192: enc="AES(192)"; break;
- case 256: enc="AES(256)"; break;
- default: enc="AES(?""?""?)"; break;
- }
+ case SSL_AES128:
+ enc="AES(128)";
break;
- case SSL_CAMELLIA:
- switch(cipher->strength_bits)
- {
- case 128: enc="Camellia(128)"; break;
- case 256: enc="Camellia(256)"; break;
- default: enc="Camellia(?""?""?)"; 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&SSL_MAC_MASK)
+ switch (alg_mac)
{
case SSL_MD5:
mac="MD5";
@@ -1251,7 +1612,7 @@ char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int len)
return("Buffer too small");
#ifdef KSSL_DEBUG
- BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg);
+ 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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 02:39:01 +0000