-/* ssl/ssl_ciph.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
*/
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- * ECC cipher suite support in OpenSSL originally developed by
+ * ECC cipher suite support in OpenSSL originally developed by
* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
*/
/* ====================================================================
#include <stdio.h>
#include <openssl/objects.h>
#ifndef OPENSSL_NO_COMP
-#include <openssl/comp.h>
+# include <openssl/comp.h>
#endif
#ifndef OPENSSL_NO_ENGINE
-#include <openssl/engine.h>
+# include <openssl/engine.h>
#endif
+#include "internal/threads.h"
#include "ssl_locl.h"
-#define SSL_ENC_DES_IDX 0
-#define SSL_ENC_3DES_IDX 1
-#define SSL_ENC_RC4_IDX 2
-#define SSL_ENC_RC2_IDX 3
-#define SSL_ENC_IDEA_IDX 4
-#define SSL_ENC_NULL_IDX 5
-#define SSL_ENC_AES128_IDX 6
-#define SSL_ENC_AES256_IDX 7
-#define SSL_ENC_CAMELLIA128_IDX 8
-#define SSL_ENC_CAMELLIA256_IDX 9
-#define SSL_ENC_GOST89_IDX 10
-#define SSL_ENC_SEED_IDX 11
-#define SSL_ENC_AES128GCM_IDX 12
-#define SSL_ENC_AES256GCM_IDX 13
-#define SSL_ENC_NUM_IDX 14
-
-
-static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL
- };
-
-#define SSL_COMP_NULL_IDX 0
-#define SSL_COMP_ZLIB_IDX 1
-#define SSL_COMP_NUM_IDX 2
-
-static STACK_OF(SSL_COMP) *ssl_comp_methods=NULL;
-
-#define SSL_MD_MD5_IDX 0
-#define SSL_MD_SHA1_IDX 1
-#define SSL_MD_GOST94_IDX 2
-#define SSL_MD_GOST89MAC_IDX 3
-#define SSL_MD_SHA256_IDX 4
-#define SSL_MD_SHA384_IDX 5
-/*Constant SSL_MAX_DIGEST equal to size of digests array should be
- * defined in the
- * ssl_locl.h */
-#define SSL_MD_NUM_IDX SSL_MAX_DIGEST
-static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL
- };
-/* PKEY_TYPE for GOST89MAC is known in advance, but, because
- * implementation is engine-provided, we'll fill it only if
- * corresponding EVP_PKEY_METHOD is found
+#define SSL_ENC_DES_IDX 0
+#define SSL_ENC_3DES_IDX 1
+#define SSL_ENC_RC4_IDX 2
+#define SSL_ENC_RC2_IDX 3
+#define SSL_ENC_IDEA_IDX 4
+#define SSL_ENC_NULL_IDX 5
+#define SSL_ENC_AES128_IDX 6
+#define SSL_ENC_AES256_IDX 7
+#define SSL_ENC_CAMELLIA128_IDX 8
+#define SSL_ENC_CAMELLIA256_IDX 9
+#define SSL_ENC_GOST89_IDX 10
+#define SSL_ENC_SEED_IDX 11
+#define SSL_ENC_AES128GCM_IDX 12
+#define SSL_ENC_AES256GCM_IDX 13
+#define SSL_ENC_AES128CCM_IDX 14
+#define SSL_ENC_AES256CCM_IDX 15
+#define SSL_ENC_AES128CCM8_IDX 16
+#define SSL_ENC_AES256CCM8_IDX 17
+#define SSL_ENC_GOST8912_IDX 18
+#define SSL_ENC_CHACHA_IDX 19
+#define SSL_ENC_NUM_IDX 20
+
+/* NB: make sure indices in these tables match values above */
+
+typedef struct {
+ uint32_t mask;
+ int nid;
+} ssl_cipher_table;
+
+/* Table of NIDs for each cipher */
+static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = {
+ {SSL_DES, NID_des_cbc}, /* SSL_ENC_DES_IDX 0 */
+ {SSL_3DES, NID_des_ede3_cbc}, /* SSL_ENC_3DES_IDX 1 */
+ {SSL_RC4, NID_rc4}, /* SSL_ENC_RC4_IDX 2 */
+ {SSL_RC2, NID_rc2_cbc}, /* SSL_ENC_RC2_IDX 3 */
+ {SSL_IDEA, NID_idea_cbc}, /* SSL_ENC_IDEA_IDX 4 */
+ {SSL_eNULL, NID_undef}, /* SSL_ENC_NULL_IDX 5 */
+ {SSL_AES128, NID_aes_128_cbc}, /* SSL_ENC_AES128_IDX 6 */
+ {SSL_AES256, NID_aes_256_cbc}, /* SSL_ENC_AES256_IDX 7 */
+ {SSL_CAMELLIA128, NID_camellia_128_cbc}, /* SSL_ENC_CAMELLIA128_IDX 8 */
+ {SSL_CAMELLIA256, NID_camellia_256_cbc}, /* SSL_ENC_CAMELLIA256_IDX 9 */
+ {SSL_eGOST2814789CNT, NID_gost89_cnt}, /* SSL_ENC_GOST89_IDX 10 */
+ {SSL_SEED, NID_seed_cbc}, /* SSL_ENC_SEED_IDX 11 */
+ {SSL_AES128GCM, NID_aes_128_gcm}, /* SSL_ENC_AES128GCM_IDX 12 */
+ {SSL_AES256GCM, NID_aes_256_gcm}, /* SSL_ENC_AES256GCM_IDX 13 */
+ {SSL_AES128CCM, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM_IDX 14 */
+ {SSL_AES256CCM, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM_IDX 15 */
+ {SSL_AES128CCM8, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM8_IDX 16 */
+ {SSL_AES256CCM8, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM8_IDX 17 */
+ {SSL_eGOST2814789CNT12, NID_gost89_cnt_12}, /* SSL_ENC_GOST8912_IDX */
+ {SSL_CHACHA20POLY1305, NID_chacha20_poly1305},
+};
+
+static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX] = {
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL
+};
+
+#define SSL_COMP_NULL_IDX 0
+#define SSL_COMP_ZLIB_IDX 1
+#define SSL_COMP_NUM_IDX 2
+
+static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL;
+
+#ifndef OPENSSL_NO_COMP
+static CRYPTO_ONCE ssl_load_builtin_comp_once = CRYPTO_ONCE_STATIC_INIT;
+#endif
+
+/*
+ * 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
+
+/* NB: make sure indices in this table matches values above */
+static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = {
+ {SSL_MD5, NID_md5}, /* SSL_MD_MD5_IDX 0 */
+ {SSL_SHA1, NID_sha1}, /* SSL_MD_SHA1_IDX 1 */
+ {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */
+ {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */
+ {SSL_SHA256, NID_sha256}, /* SSL_MD_SHA256_IDX 4 */
+ {SSL_SHA384, NID_sha384}, /* SSL_MD_SHA384_IDX 5 */
+ {SSL_GOST12_256, NID_id_GostR3411_2012_256}, /* SSL_MD_GOST12_256_IDX 6 */
+ {SSL_GOST89MAC12, NID_gost_mac_12}, /* SSL_MD_GOST89MAC12_IDX 7 */
+ {SSL_GOST12_512, NID_id_GostR3411_2012_512}, /* SSL_MD_GOST12_512_IDX 8 */
+ {0, NID_md5_sha1}, /* SSL_MD_MD5_SHA1_IDX 9 */
+ {0, NID_sha224}, /* SSL_MD_SHA224_IDX 10 */
+ {0, NID_sha512} /* SSL_MD_SHA512_IDX 11 */
+};
+
+static const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX] = {
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
+};
+
+static const ssl_cipher_table ssl_cipher_table_kx[] = {
+ { SSL_kRSA, NID_kx_rsa },
+ { SSL_kECDHE, NID_kx_ecdhe },
+ { SSL_kDHE, NID_kx_dhe },
+ { SSL_kECDHEPSK, NID_kx_ecdhe_psk },
+ { SSL_kDHEPSK, NID_kx_dhe_psk },
+ { SSL_kRSAPSK, NID_kx_rsa_psk },
+ { SSL_kPSK, NID_kx_psk },
+ { SSL_kSRP, NID_kx_srp },
+ { SSL_kGOST, NID_kx_gost }
+};
+
+static const ssl_cipher_table ssl_cipher_table_auth[] = {
+ { SSL_aRSA, NID_auth_rsa },
+ { SSL_aECDSA, NID_auth_ecdsa },
+ { SSL_aPSK, NID_auth_psk },
+ { SSL_aDSS, NID_auth_dss },
+ { SSL_aGOST01, NID_auth_gost01 },
+ { SSL_aGOST12, NID_auth_gost12 },
+ { SSL_aSRP, NID_auth_srp },
+ { SSL_aNULL, NID_auth_null }
+};
+
+/* Utility function for table lookup */
+static int ssl_cipher_info_find(const ssl_cipher_table * table,
+ size_t table_cnt, uint32_t mask)
+{
+ size_t i;
+ for (i = 0; i < table_cnt; i++, table++) {
+ if (table->mask == mask)
+ return i;
+ }
+ return -1;
+}
+
+#define ssl_cipher_info_lookup(table, x) \
+ ssl_cipher_info_find(table, OSSL_NELEM(table), x)
+
+/*
+ * 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] = {
+ /* MD5, SHA, GOST94, MAC89 */
+ EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef,
+ /* SHA256, SHA384, GOST2012_256, MAC89-12 */
+ EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef,
+ /* GOST2012_512 */
+ EVP_PKEY_HMAC,
+};
+
+static int ssl_mac_secret_size[SSL_MD_NUM_IDX] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+#define CIPHER_ADD 1
+#define CIPHER_KILL 2
+#define CIPHER_DEL 3
+#define CIPHER_ORD 4
+#define CIPHER_SPECIAL 5
+/*
+ * Bump the ciphers to the top of the list.
+ * This rule isn't currently supported by the public cipherstring API.
*/
-static int ssl_mac_pkey_id[SSL_MD_NUM_IDX]={
- EVP_PKEY_HMAC,EVP_PKEY_HMAC,EVP_PKEY_HMAC,NID_undef,
- EVP_PKEY_HMAC,EVP_PKEY_HMAC
- };
-
-static int ssl_mac_secret_size[SSL_MD_NUM_IDX]={
- 0,0,0,0,0,0
- };
-
-static int ssl_handshake_digest_flag[SSL_MD_NUM_IDX]={
- SSL_HANDSHAKE_MAC_MD5,SSL_HANDSHAKE_MAC_SHA,
- SSL_HANDSHAKE_MAC_GOST94, 0, SSL_HANDSHAKE_MAC_SHA256,
- SSL_HANDSHAKE_MAC_SHA384
- };
-
-#define CIPHER_ADD 1
-#define CIPHER_KILL 2
-#define CIPHER_DEL 3
-#define CIPHER_ORD 4
-#define CIPHER_SPECIAL 5
-
-typedef struct cipher_order_st
- {
- const SSL_CIPHER *cipher;
- int active;
- int dead;
- struct cipher_order_st *next,*prev;
- } CIPHER_ORDER;
-
-static const SSL_CIPHER cipher_aliases[]={
- /* "ALL" doesn't include eNULL (must be specifically enabled) */
- {0,SSL_TXT_ALL,0, 0,0,~SSL_eNULL,0,0,0,0,0,0},
- /* "COMPLEMENTOFALL" */
- {0,SSL_TXT_CMPALL,0, 0,0,SSL_eNULL,0,0,0,0,0,0},
-
- /* "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in ALL!) */
- {0,SSL_TXT_CMPDEF,0, SSL_kDHE|SSL_kECDHE,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. kDHE 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_kDHE, 0,0,0,0,0,0,0,0},
- {0,SSL_TXT_kDHE,0, SSL_kDHE, 0,0,0,0,0,0,0,0},
- {0,SSL_TXT_DH,0, SSL_kDHr|SSL_kDHd|SSL_kDHE,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_kECDHE,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_ECDH,0, SSL_kECDHr|SSL_kECDHe|SSL_kECDHE,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_kDHE,~SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_DHE,0, SSL_kDHE,~SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_EECDH,0, SSL_kECDHE,~SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_ECDHE,0, SSL_kECDHE,~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_kDHE,SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_AECDH,0, SSL_kECDHE,SSL_aNULL,0,0,0,0,0,0,0},
- {0,SSL_TXT_PSK,0, SSL_kPSK,SSL_aPSK,0,0,0,0,0,0,0},
- {0,SSL_TXT_SRP,0, SSL_kSRP,0,0,0,0,0,0,0,0},
-
-
- /* symmetric encryption aliases */
- {0,SSL_TXT_DES,0, 0,0,SSL_DES, 0,0,0,0,0,0},
- {0,SSL_TXT_3DES,0, 0,0,SSL_3DES, 0,0,0,0,0,0},
- {0,SSL_TXT_RC4,0, 0,0,SSL_RC4, 0,0,0,0,0,0},
- {0,SSL_TXT_RC2,0, 0,0,SSL_RC2, 0,0,0,0,0,0},
- {0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0},
- {0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0},
- {0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
- {0,SSL_TXT_AES128,0, 0,0,SSL_AES128|SSL_AES128GCM,0,0,0,0,0,0},
- {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0},
- {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0},
- {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,0,0,0,0,0,0},
- {0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0},
- {0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0},
- {0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0},
-
- /* MAC aliases */
- {0,SSL_TXT_MD5,0, 0,0,0,SSL_MD5, 0,0,0,0,0},
- {0,SSL_TXT_SHA1,0, 0,0,0,SSL_SHA1, 0,0,0,0,0},
- {0,SSL_TXT_SHA,0, 0,0,0,SSL_SHA1, 0,0,0,0,0},
- {0,SSL_TXT_GOST94,0, 0,0,0,SSL_GOST94, 0,0,0,0,0},
- {0,SSL_TXT_GOST89MAC,0, 0,0,0,SSL_GOST89MAC, 0,0,0,0,0},
- {0,SSL_TXT_SHA256,0, 0,0,0,SSL_SHA256, 0,0,0,0,0},
- {0,SSL_TXT_SHA384,0, 0,0,0,SSL_SHA384, 0,0,0,0,0},
-
- /* protocol version aliases */
- {0,SSL_TXT_SSLV2,0, 0,0,0,0,SSL_SSLV2, 0,0,0,0},
- {0,SSL_TXT_SSLV3,0, 0,0,0,0,SSL_SSLV3, 0,0,0,0},
- {0,SSL_TXT_TLSV1,0, 0,0,0,0,SSL_TLSV1, 0,0,0,0},
- {0,SSL_TXT_TLSV1_2,0, 0,0,0,0,SSL_TLSV1_2, 0,0,0,0},
-
- /* export flag */
- {0,SSL_TXT_EXP,0, 0,0,0,0,0,SSL_EXPORT,0,0,0},
- {0,SSL_TXT_EXPORT,0, 0,0,0,0,0,SSL_EXPORT,0,0,0},
-
- /* strength classes */
- {0,SSL_TXT_EXP40,0, 0,0,0,0,0,SSL_EXP40, 0,0,0},
- {0,SSL_TXT_EXP56,0, 0,0,0,0,0,SSL_EXP56, 0,0,0},
- {0,SSL_TXT_LOW,0, 0,0,0,0,0,SSL_LOW, 0,0,0},
- {0,SSL_TXT_MEDIUM,0, 0,0,0,0,0,SSL_MEDIUM,0,0,0},
- {0,SSL_TXT_HIGH,0, 0,0,0,0,0,SSL_HIGH, 0,0,0},
- /* FIPS 140-2 approved ciphersuite */
- {0,SSL_TXT_FIPS,0, 0,0,~SSL_eNULL,0,0,SSL_FIPS, 0,0,0},
-
- /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */
- {0,SSL3_TXT_EDH_DSS_DES_40_CBC_SHA,0,
- SSL_kDHE,SSL_aDSS,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_EXPORT|SSL_EXP40,0,0,0,},
- {0,SSL3_TXT_EDH_DSS_DES_64_CBC_SHA,0,
- SSL_kDHE,SSL_aDSS,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_LOW,0,0,0,},
- {0,SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA,0,
- SSL_kDHE,SSL_aDSS,SSL_3DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,0,0,0,},
- {0,SSL3_TXT_EDH_RSA_DES_40_CBC_SHA,0,
- SSL_kDHE,SSL_aRSA,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_EXPORT|SSL_EXP40,0,0,0,},
- {0,SSL3_TXT_EDH_RSA_DES_64_CBC_SHA,0,
- SSL_kDHE,SSL_aRSA,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_LOW,0,0,0,},
- {0,SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA,0,
- SSL_kDHE,SSL_aRSA,SSL_3DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,0,0,0,},
-
- };
-/* Search for public key algorithm with given name and
- * return its pkey_id if it is available. Otherwise return 0
+#define CIPHER_BUMP 6
+
+typedef struct cipher_order_st {
+ const SSL_CIPHER *cipher;
+ int active;
+ int dead;
+ struct cipher_order_st *next, *prev;
+} CIPHER_ORDER;
+
+static const SSL_CIPHER cipher_aliases[] = {
+ /* "ALL" doesn't include eNULL (must be specifically enabled) */
+ {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ /* "COMPLEMENTOFALL" */
+ {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ /*
+ * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
+ * ALL!)
+ */
+ {0, SSL_TXT_CMPDEF, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT, 0, 0, 0},
+
+ /*
+ * key exchange aliases (some of those using only a single bit here
+ * combine multiple key exchange algs according to the RFCs, e.g. kDHE
+ * combines DHE_DSS and DHE_RSA)
+ */
+ {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_DH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_ECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kRSAPSK, 0, SSL_kRSAPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kECDHEPSK, 0, SSL_kECDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kDHEPSK, 0, SSL_kDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 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, 0, 0},
+ {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_aGOST12, 0, 0, SSL_aGOST12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01 | SSL_aGOST12, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0},
+ {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ /* aliases combining key exchange and server authentication */
+ {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_PSK, 0, SSL_PSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ /* symmetric encryption aliases */
+ {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_GOST, 0, 0, 0, SSL_eGOST2814789CNT | SSL_eGOST2814789CNT12, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM | SSL_AES128CCM | SSL_AES128CCM8, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM | SSL_AES256CCM | SSL_AES256CCM8, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 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, 0, 0},
+ {0, SSL_TXT_AES_CCM, 0, 0, 0,
+ SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_AES_CCM_8, 0, 0, 0, SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, 0,
+ 0, 0},
+ {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0},
+ {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0},
+ {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_CHACHA20, 0, 0, 0, SSL_CHACHA20, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+
+ /* MAC aliases */
+ {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC | SSL_GOST89MAC12, 0, 0,
+ 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_GOST12, 0, 0, 0, 0, SSL_GOST12_256, 0, 0, 0, 0, 0, 0, 0, 0},
+
+ /* protocol version aliases */
+ {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL3_VERSION, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, TLS1_VERSION, 0, 0, 0, 0, 0, 0, 0},
+ {0, "TLSv1.0", 0, 0, 0, 0, 0, TLS1_VERSION, 0, 0, 0, 0, 0, 0, 0},
+ {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, TLS1_2_VERSION, 0, 0, 0, 0, 0, 0, 0},
+
+ /* strength classes */
+ {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
+ {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
+ {0, SSL_TXT_HIGH, 0, 0, 0, 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, 0, 0, 0, SSL_FIPS, 0, 0, 0},
+
+ /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */
+ {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, 0,
+ SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, 0, 0, 0, 0,
+ SSL_HIGH | SSL_FIPS, 0, 0, 0,},
+ {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, 0,
+ SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, 0, 0, 0, 0,
+ SSL_HIGH | SSL_FIPS, 0, 0, 0,},
+
+};
+
+/*
+ * Search for public key algorithm with given name and return its pkey_id if
+ * it is available. Otherwise return 0
*/
#ifdef OPENSSL_NO_ENGINE
static int get_optional_pkey_id(const char *pkey_name)
- {
- const EVP_PKEY_ASN1_METHOD *ameth;
- int pkey_id=0;
- ameth = EVP_PKEY_asn1_find_str(NULL,pkey_name,-1);
- if (ameth)
- {
- EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth);
- }
- return pkey_id;
- }
+{
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ int pkey_id = 0;
+ ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1);
+ if (ameth && EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL,
+ ameth) > 0) {
+ return pkey_id;
+ }
+ return 0;
+}
#else
static int get_optional_pkey_id(const char *pkey_name)
- {
- const EVP_PKEY_ASN1_METHOD *ameth;
- ENGINE *tmpeng = NULL;
- int pkey_id=0;
- ameth = EVP_PKEY_asn1_find_str(&tmpeng,pkey_name,-1);
- if (ameth)
- {
- EVP_PKEY_asn1_get0_info(&pkey_id, NULL,NULL,NULL,NULL,ameth);
- }
- if (tmpeng) ENGINE_finish(tmpeng);
- return pkey_id;
- }
+{
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ ENGINE *tmpeng = NULL;
+ int pkey_id = 0;
+ ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1);
+ if (ameth) {
+ if (EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL,
+ ameth) <= 0)
+ pkey_id = 0;
+ }
+ ENGINE_finish(tmpeng);
+ return pkey_id;
+}
#endif
+/* masks of disabled algorithms */
+static uint32_t disabled_enc_mask;
+static uint32_t disabled_mac_mask;
+static uint32_t disabled_mkey_mask;
+static uint32_t disabled_auth_mask;
+
void ssl_load_ciphers(void)
- {
- ssl_cipher_methods[SSL_ENC_DES_IDX]=
- EVP_get_cipherbyname(SN_des_cbc);
- ssl_cipher_methods[SSL_ENC_3DES_IDX]=
- EVP_get_cipherbyname(SN_des_ede3_cbc);
- ssl_cipher_methods[SSL_ENC_RC4_IDX]=
- EVP_get_cipherbyname(SN_rc4);
- ssl_cipher_methods[SSL_ENC_RC2_IDX]=
- EVP_get_cipherbyname(SN_rc2_cbc);
-#ifndef OPENSSL_NO_IDEA
- ssl_cipher_methods[SSL_ENC_IDEA_IDX]=
- EVP_get_cipherbyname(SN_idea_cbc);
-#else
- ssl_cipher_methods[SSL_ENC_IDEA_IDX]= NULL;
+{
+ size_t i;
+ const ssl_cipher_table *t;
+
+ disabled_enc_mask = 0;
+ ssl_sort_cipher_list();
+ for (i = 0, t = ssl_cipher_table_cipher; i < SSL_ENC_NUM_IDX; i++, t++) {
+ if (t->nid == NID_undef) {
+ ssl_cipher_methods[i] = NULL;
+ } else {
+ const EVP_CIPHER *cipher = EVP_get_cipherbynid(t->nid);
+ ssl_cipher_methods[i] = cipher;
+ if (cipher == NULL)
+ disabled_enc_mask |= t->mask;
+ }
+ }
+#ifdef SSL_FORBID_ENULL
+ disabled_enc_mask |= SSL_eNULL;
+#endif
+ disabled_mac_mask = 0;
+ for (i = 0, t = ssl_cipher_table_mac; i < SSL_MD_NUM_IDX; i++, t++) {
+ const EVP_MD *md = EVP_get_digestbynid(t->nid);
+ ssl_digest_methods[i] = md;
+ if (md == NULL) {
+ disabled_mac_mask |= t->mask;
+ } else {
+ ssl_mac_secret_size[i] = EVP_MD_size(md);
+ OPENSSL_assert(ssl_mac_secret_size[i] >= 0);
+ }
+ }
+ /* Make sure we can access MD5 and SHA1 */
+ OPENSSL_assert(ssl_digest_methods[SSL_MD_MD5_IDX] != NULL);
+ OPENSSL_assert(ssl_digest_methods[SSL_MD_SHA1_IDX] != NULL);
+
+ disabled_mkey_mask = 0;
+ disabled_auth_mask = 0;
+
+#ifdef OPENSSL_NO_RSA
+ disabled_mkey_mask |= SSL_kRSA | SSL_kRSAPSK;
+ disabled_auth_mask |= SSL_aRSA;
+#endif
+#ifdef OPENSSL_NO_DSA
+ disabled_auth_mask |= SSL_aDSS;
+#endif
+#ifdef OPENSSL_NO_DH
+ disabled_mkey_mask |= SSL_kDHE | SSL_kDHEPSK;
+#endif
+#ifdef OPENSSL_NO_EC
+ disabled_mkey_mask |= SSL_kECDHEPSK;
+ disabled_auth_mask |= SSL_aECDSA;
#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]);
- }
+#ifdef OPENSSL_NO_PSK
+ disabled_mkey_mask |= SSL_PSK;
+ disabled_auth_mask |= SSL_aPSK;
+#endif
+#ifdef OPENSSL_NO_SRP
+ disabled_mkey_mask |= SSL_kSRP;
+#endif
+
+ /*
+ * Check for presence of GOST 34.10 algorithms, and if they are not
+ * present, disable appropriate auth and key exchange
+ */
+ 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;
+ } else {
+ disabled_mac_mask |= SSL_GOST89MAC;
+ }
+
+ ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX] = get_optional_pkey_id("gost-mac-12");
+ if (ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX]) {
+ ssl_mac_secret_size[SSL_MD_GOST89MAC12_IDX] = 32;
+ } else {
+ disabled_mac_mask |= SSL_GOST89MAC12;
+ }
+
+ if (!get_optional_pkey_id("gost2001"))
+ disabled_auth_mask |= SSL_aGOST01 | SSL_aGOST12;
+ if (!get_optional_pkey_id("gost2012_256"))
+ disabled_auth_mask |= SSL_aGOST12;
+ if (!get_optional_pkey_id("gost2012_512"))
+ disabled_auth_mask |= SSL_aGOST12;
+ /*
+ * Disable GOST key exchange if no GOST signature algs are available *
+ */
+ if ((disabled_auth_mask & (SSL_aGOST01 | SSL_aGOST12)) == (SSL_aGOST01 | SSL_aGOST12))
+ disabled_mkey_mask |= SSL_kGOST;
+}
+
#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 int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b)
+{
+ return ((*a)->id - (*b)->id);
+}
+
+static void do_load_builtin_compressions(void)
+{
+ SSL_COMP *comp = NULL;
+ COMP_METHOD *method = COMP_zlib();
+
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE);
+ ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp);
+
+ if (COMP_get_type(method) != NID_undef && ssl_comp_methods != NULL) {
+ comp = OPENSSL_malloc(sizeof(*comp));
+ if (comp != NULL) {
+ comp->method = method;
+ comp->id = SSL_COMP_ZLIB_IDX;
+ comp->name = COMP_get_name(method);
+ sk_SSL_COMP_push(ssl_comp_methods, comp);
+ sk_SSL_COMP_sort(ssl_comp_methods);
+ }
+ }
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
+}
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);
- }
+{
+ CRYPTO_THREAD_run_once(&ssl_load_builtin_comp_once,
+ do_load_builtin_compressions);
+}
#endif
int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
- const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size,SSL_COMP **comp, int use_etm)
- {
- int i;
- const SSL_CIPHER *c;
-
- c=s->cipher;
- if (c == NULL) return(0);
- if (comp != NULL)
- {
- SSL_COMP ctmp;
+ const EVP_MD **md, int *mac_pkey_type,
+ int *mac_secret_size, SSL_COMP **comp, int use_etm)
+{
+ int i;
+ const SSL_CIPHER *c;
+
+ c = s->cipher;
+ if (c == NULL)
+ return (0);
+ if (comp != NULL) {
+ SSL_COMP ctmp;
#ifndef OPENSSL_NO_COMP
- load_builtin_compressions();
+ load_builtin_compressions();
#endif
+ *comp = NULL;
+ ctmp.id = s->compress_meth;
+ if (ssl_comp_methods != NULL) {
+ i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp);
+ if (i >= 0)
+ *comp = sk_SSL_COMP_value(ssl_comp_methods, i);
+ else
+ *comp = NULL;
+ }
+ /* If were only interested in comp then return success */
+ if ((enc == NULL) && (md == NULL))
+ return 1;
+ }
+
+ if ((enc == NULL) || (md == NULL))
+ return 0;
+
+ i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc);
+
+ if (i == -1)
+ *enc = NULL;
+ else {
+ if (i == SSL_ENC_NULL_IDX)
+ *enc = EVP_enc_null();
+ else
+ *enc = ssl_cipher_methods[i];
+ }
+
+ i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac);
+ if (i == -1) {
+ *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 (use_etm)
+ return 1;
+
+ if (s->ssl_version >> 8 != TLS1_VERSION_MAJOR ||
+ s->ssl_version < TLS1_VERSION)
+ return 1;
+
+ if (FIPS_mode())
+ return 1;
+
+ if (c->algorithm_enc == SSL_RC4 &&
+ c->algorithm_mac == SSL_MD5 &&
+ (evp = EVP_get_cipherbyname("RC4-HMAC-MD5")))
+ *enc = evp, *md = NULL;
+ else if (c->algorithm_enc == SSL_AES128 &&
+ c->algorithm_mac == SSL_SHA1 &&
+ (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
+ *enc = evp, *md = NULL;
+ else if (c->algorithm_enc == SSL_AES256 &&
+ c->algorithm_mac == SSL_SHA1 &&
+ (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
+ *enc = evp, *md = NULL;
+ else if (c->algorithm_enc == SSL_AES128 &&
+ c->algorithm_mac == SSL_SHA256 &&
+ (evp = EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
+ *enc = evp, *md = NULL;
+ else if (c->algorithm_enc == SSL_AES256 &&
+ c->algorithm_mac == SSL_SHA256 &&
+ (evp = EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
+ *enc = evp, *md = NULL;
+ return (1);
+ } else
+ return (0);
+}
- *comp=NULL;
- ctmp.id=s->compress_meth;
- if (ssl_comp_methods != NULL)
- {
- i=sk_SSL_COMP_find(ssl_comp_methods,&ctmp);
- if (i >= 0)
- *comp=sk_SSL_COMP_value(ssl_comp_methods,i);
- else
- *comp=NULL;
- }
- }
-
- if ((enc == NULL) || (md == NULL)) return(0);
-
- switch (c->algorithm_enc)
- {
- case SSL_DES:
- i=SSL_ENC_DES_IDX;
- break;
- case SSL_3DES:
- i=SSL_ENC_3DES_IDX;
- break;
- case SSL_RC4:
- i=SSL_ENC_RC4_IDX;
- break;
- case SSL_RC2:
- i=SSL_ENC_RC2_IDX;
- break;
- case SSL_IDEA:
- i=SSL_ENC_IDEA_IDX;
- break;
- case SSL_eNULL:
- i=SSL_ENC_NULL_IDX;
- break;
- case SSL_AES128:
- i=SSL_ENC_AES128_IDX;
- break;
- case SSL_AES256:
- i=SSL_ENC_AES256_IDX;
- break;
- case SSL_CAMELLIA128:
- i=SSL_ENC_CAMELLIA128_IDX;
- break;
- case SSL_CAMELLIA256:
- i=SSL_ENC_CAMELLIA256_IDX;
- break;
- case SSL_eGOST2814789CNT:
- i=SSL_ENC_GOST89_IDX;
- break;
- case SSL_SEED:
- i=SSL_ENC_SEED_IDX;
- break;
- case SSL_AES128GCM:
- i=SSL_ENC_AES128GCM_IDX;
- break;
- case SSL_AES256GCM:
- i=SSL_ENC_AES256GCM_IDX;
- break;
- default:
- i= -1;
- break;
- }
-
- if ((i < 0) || (i > SSL_ENC_NUM_IDX))
- *enc=NULL;
- else
- {
- if (i == SSL_ENC_NULL_IDX)
- *enc=EVP_enc_null();
- else
- *enc=ssl_cipher_methods[i];
- }
-
- switch (c->algorithm_mac)
- {
- case SSL_MD5:
- i=SSL_MD_MD5_IDX;
- break;
- case SSL_SHA1:
- i=SSL_MD_SHA1_IDX;
- break;
- case SSL_SHA256:
- i=SSL_MD_SHA256_IDX;
- break;
- case SSL_SHA384:
- i=SSL_MD_SHA384_IDX;
- break;
- case SSL_GOST94:
- i = SSL_MD_GOST94_IDX;
- break;
- case SSL_GOST89MAC:
- i = SSL_MD_GOST89MAC_IDX;
- break;
- default:
- i= -1;
- break;
- }
- if ((i < 0) || (i > SSL_MD_NUM_IDX))
- {
- *md=NULL;
- if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;
- if (mac_secret_size!=NULL) *mac_secret_size = 0;
- if (c->algorithm_mac == SSL_AEAD)
- mac_pkey_type = NULL;
- }
- else
- {
- *md=ssl_digest_methods[i];
- if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i];
- if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i];
- }
-
- if ((*enc != NULL) &&
- (*md != NULL || (EVP_CIPHER_flags(*enc)&EVP_CIPH_FLAG_AEAD_CIPHER)) &&
- (!mac_pkey_type||*mac_pkey_type != NID_undef))
- {
- const EVP_CIPHER *evp;
-
- if (use_etm)
- return 1;
-
- if (s->ssl_version>>8 != TLS1_VERSION_MAJOR ||
- s->ssl_version < TLS1_VERSION)
- return 1;
-
-#ifdef OPENSSL_FIPS
- if (FIPS_mode())
- return 1;
-#endif
+const EVP_MD *ssl_md(int idx)
+{
+ idx &= SSL_HANDSHAKE_MAC_MASK;
+ if (idx < 0 || idx >= SSL_MD_NUM_IDX)
+ return NULL;
+ return ssl_digest_methods[idx];
+}
+
+const EVP_MD *ssl_handshake_md(SSL *s)
+{
+ return ssl_md(ssl_get_algorithm2(s));
+}
- if (c->algorithm_enc == SSL_RC4 &&
- c->algorithm_mac == SSL_MD5 &&
- (evp=EVP_get_cipherbyname("RC4-HMAC-MD5")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES128 &&
- c->algorithm_mac == SSL_SHA1 &&
- (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA1")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES256 &&
- c->algorithm_mac == SSL_SHA1 &&
- (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA1")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES128 &&
- c->algorithm_mac == SSL_SHA256 &&
- (evp=EVP_get_cipherbyname("AES-128-CBC-HMAC-SHA256")))
- *enc = evp, *md = NULL;
- else if (c->algorithm_enc == SSL_AES256 &&
- c->algorithm_mac == SSL_SHA256 &&
- (evp=EVP_get_cipherbyname("AES-256-CBC-HMAC-SHA256")))
- *enc = evp, *md = NULL;
- return(1);
- }
- else
- return(0);
- }
-
-int ssl_get_handshake_digest(int idx, long *mask, const EVP_MD **md)
+const EVP_MD *ssl_prf_md(SSL *s)
{
- 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;
+ return ssl_md(ssl_get_algorithm2(s) >> TLS1_PRF_DGST_SHIFT);
}
#define ITEM_SEP(a) \
- (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
+ (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ','))
static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr,
- CIPHER_ORDER **tail)
- {
- if (curr == *tail) return;
- if (curr == *head)
- *head=curr->next;
- if (curr->prev != NULL)
- curr->prev->next=curr->next;
- if (curr->next != NULL)
- curr->next->prev=curr->prev;
- (*tail)->next=curr;
- curr->prev= *tail;
- curr->next=NULL;
- *tail=curr;
- }
+ CIPHER_ORDER **tail)
+{
+ if (curr == *tail)
+ return;
+ if (curr == *head)
+ *head = curr->next;
+ if (curr->prev != NULL)
+ curr->prev->next = curr->next;
+ if (curr->next != NULL)
+ curr->next->prev = curr->prev;
+ (*tail)->next = curr;
+ curr->prev = *tail;
+ curr->next = NULL;
+ *tail = curr;
+}
static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr,
- CIPHER_ORDER **tail)
- {
- if (curr == *head) return;
- if (curr == *tail)
- *tail=curr->prev;
- if (curr->next != NULL)
- curr->next->prev=curr->prev;
- if (curr->prev != NULL)
- curr->prev->next=curr->next;
- (*head)->prev=curr;
- curr->next= *head;
- curr->prev=NULL;
- *head=curr;
- }
-
-static void ssl_cipher_get_disabled(unsigned long *mkey, unsigned long *auth, unsigned long *enc, unsigned long *mac, unsigned long *ssl)
- {
- *mkey = 0;
- *auth = 0;
- *enc = 0;
- *mac = 0;
- *ssl = 0;
-
-#ifdef OPENSSL_NO_RSA
- *mkey |= SSL_kRSA;
- *auth |= SSL_aRSA;
-#endif
-#ifdef OPENSSL_NO_DSA
- *auth |= SSL_aDSS;
-#endif
-#ifdef OPENSSL_NO_DH
- *mkey |= SSL_kDHr|SSL_kDHd|SSL_kDHE;
- *auth |= SSL_aDH;
-#endif
-#ifdef OPENSSL_NO_KRB5
- *mkey |= SSL_kKRB5;
- *auth |= SSL_aKRB5;
-#endif
-#ifdef OPENSSL_NO_ECDSA
- *auth |= SSL_aECDSA;
-#endif
-#ifdef OPENSSL_NO_ECDH
- *mkey |= SSL_kECDHe|SSL_kECDHr;
- *auth |= SSL_aECDH;
-#endif
-#ifdef OPENSSL_NO_PSK
- *mkey |= SSL_kPSK;
- *auth |= SSL_aPSK;
-#endif
-#ifdef OPENSSL_NO_SRP
- *mkey |= SSL_kSRP;
-#endif
- /* Check for presence of GOST 34.10 algorithms, and if they
- * do not present, disable appropriate auth and key exchange */
- if (!get_optional_pkey_id("gost94")) {
- *auth |= SSL_aGOST94;
- }
- if (!get_optional_pkey_id("gost2001")) {
- *auth |= SSL_aGOST01;
- }
- /* Disable GOST key exchange if no GOST signature algs are available * */
- if ((*auth & (SSL_aGOST94|SSL_aGOST01)) == (SSL_aGOST94|SSL_aGOST01)) {
- *mkey |= SSL_kGOST;
- }
-#ifdef SSL_FORBID_ENULL
- *enc |= SSL_eNULL;
-#endif
-
-
-
- *enc |= (ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL) ? SSL_DES :0;
- *enc |= (ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL) ? SSL_3DES:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL) ? SSL_RC4 :0;
- *enc |= (ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL) ? SSL_RC2 :0;
- *enc |= (ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL) ? SSL_IDEA:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES128_IDX] == NULL) ? SSL_AES128:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES256_IDX] == NULL) ? SSL_AES256:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES128GCM_IDX] == NULL) ? SSL_AES128GCM:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_AES256GCM_IDX] == NULL) ? SSL_AES256GCM:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA128_IDX] == NULL) ? SSL_CAMELLIA128:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_CAMELLIA256_IDX] == NULL) ? SSL_CAMELLIA256:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_GOST89_IDX] == NULL) ? SSL_eGOST2814789CNT:0;
- *enc |= (ssl_cipher_methods[SSL_ENC_SEED_IDX] == NULL) ? SSL_SEED:0;
-
- *mac |= (ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL) ? SSL_MD5 :0;
- *mac |= (ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL) ? SSL_SHA1:0;
- *mac |= (ssl_digest_methods[SSL_MD_SHA256_IDX] == NULL) ? SSL_SHA256:0;
- *mac |= (ssl_digest_methods[SSL_MD_SHA384_IDX] == NULL) ? SSL_SHA384:0;
- *mac |= (ssl_digest_methods[SSL_MD_GOST94_IDX] == NULL) ? SSL_GOST94:0;
- *mac |= (ssl_digest_methods[SSL_MD_GOST89MAC_IDX] == NULL || ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]==NID_undef)? SSL_GOST89MAC:0;
-
- }
+ CIPHER_ORDER **tail)
+{
+ if (curr == *head)
+ return;
+ if (curr == *tail)
+ *tail = curr->prev;
+ if (curr->next != NULL)
+ curr->next->prev = curr->prev;
+ if (curr->prev != NULL)
+ curr->prev->next = curr->next;
+ (*head)->prev = curr;
+ curr->next = *head;
+ curr->prev = NULL;
+ *head = curr;
+}
static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method,
- int num_of_ciphers,
- unsigned long disabled_mkey, unsigned long disabled_auth,
- unsigned long disabled_enc, unsigned long disabled_mac,
- unsigned long disabled_ssl,
- CIPHER_ORDER *co_list,
- CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
- {
- int i, co_list_num;
- const SSL_CIPHER *c;
-
- /*
- * We have num_of_ciphers descriptions compiled in, depending on the
- * method selected (SSLv2 and/or SSLv3, TLSv1 etc).
- * These will later be sorted in a linked list with at most num
- * entries.
- */
-
- /* Get the initial list of ciphers */
- co_list_num = 0; /* actual count of ciphers */
- for (i = 0; i < num_of_ciphers; i++)
- {
- c = ssl_method->get_cipher(i);
- /* drop those that use any of that is not available */
- if ((c != NULL) && c->valid &&
-#ifdef OPENSSL_FIPS
- (!FIPS_mode() || (c->algo_strength & SSL_FIPS)) &&
-#endif
- !(c->algorithm_mkey & disabled_mkey) &&
- !(c->algorithm_auth & disabled_auth) &&
- !(c->algorithm_enc & disabled_enc) &&
- !(c->algorithm_mac & disabled_mac) &&
- !(c->algorithm_ssl & disabled_ssl))
- {
- co_list[co_list_num].cipher = c;
- co_list[co_list_num].next = NULL;
- co_list[co_list_num].prev = NULL;
- co_list[co_list_num].active = 0;
- co_list_num++;
-#ifdef KSSL_DEBUG
- printf("\t%d: %s %lx %lx %lx\n",i,c->name,c->id,c->algorithm_mkey,c->algorithm_auth);
-#endif /* KSSL_DEBUG */
- /*
- if (!sk_push(ca_list,(char *)c)) goto err;
- */
- }
- }
-
- /*
- * Prepare linked list from list entries
- */
- if (co_list_num > 0)
- {
- co_list[0].prev = NULL;
-
- if (co_list_num > 1)
- {
- co_list[0].next = &co_list[1];
-
- for (i = 1; i < co_list_num - 1; i++)
- {
- co_list[i].prev = &co_list[i - 1];
- co_list[i].next = &co_list[i + 1];
- }
-
- co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
- }
-
- co_list[co_list_num - 1].next = NULL;
-
- *head_p = &co_list[0];
- *tail_p = &co_list[co_list_num - 1];
- }
- }
+ int num_of_ciphers,
+ uint32_t disabled_mkey,
+ uint32_t disabled_auth,
+ uint32_t disabled_enc,
+ uint32_t disabled_mac,
+ CIPHER_ORDER *co_list,
+ CIPHER_ORDER **head_p,
+ CIPHER_ORDER **tail_p)
+{
+ int i, co_list_num;
+ const SSL_CIPHER *c;
+
+ /*
+ * We have num_of_ciphers descriptions compiled in, depending on the
+ * method selected (SSLv3, TLSv1 etc).
+ * These will later be sorted in a linked list with at most num
+ * entries.
+ */
+
+ /* Get the initial list of ciphers */
+ co_list_num = 0; /* actual count of ciphers */
+ for (i = 0; i < num_of_ciphers; i++) {
+ c = ssl_method->get_cipher(i);
+ /* drop those that use any of that is not available */
+ if (c == NULL || !c->valid)
+ continue;
+ if (FIPS_mode() && (c->algo_strength & SSL_FIPS))
+ continue;
+ if ((c->algorithm_mkey & disabled_mkey) ||
+ (c->algorithm_auth & disabled_auth) ||
+ (c->algorithm_enc & disabled_enc) ||
+ (c->algorithm_mac & disabled_mac))
+ continue;
+ if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) == 0) &&
+ c->min_tls == 0)
+ continue;
+ if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) != 0) &&
+ c->min_dtls == 0)
+ continue;
+
+ 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++;
+ /*
+ * if (!sk_push(ca_list,(char *)c)) goto err;
+ */
+ }
+
+ /*
+ * Prepare linked list from list entries
+ */
+ if (co_list_num > 0) {
+ co_list[0].prev = NULL;
+
+ if (co_list_num > 1) {
+ co_list[0].next = &co_list[1];
+
+ for (i = 1; i < co_list_num - 1; i++) {
+ co_list[i].prev = &co_list[i - 1];
+ co_list[i].next = &co_list[i + 1];
+ }
+
+ co_list[co_list_num - 1].prev = &co_list[co_list_num - 2];
+ }
+
+ co_list[co_list_num - 1].next = NULL;
+
+ *head_p = &co_list[0];
+ *tail_p = &co_list[co_list_num - 1];
+ }
+}
static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
- int num_of_group_aliases,
- unsigned long disabled_mkey, unsigned long disabled_auth,
- unsigned long disabled_enc, unsigned long disabled_mac,
- unsigned long disabled_ssl,
- CIPHER_ORDER *head)
- {
- CIPHER_ORDER *ciph_curr;
- const SSL_CIPHER **ca_curr;
- int i;
- unsigned long mask_mkey = ~disabled_mkey;
- unsigned long mask_auth = ~disabled_auth;
- unsigned long mask_enc = ~disabled_enc;
- unsigned long mask_mac = ~disabled_mac;
- unsigned long mask_ssl = ~disabled_ssl;
-
- /*
- * First, add the real ciphers as already collected
- */
- ciph_curr = head;
- ca_curr = ca_list;
- while (ciph_curr != NULL)
- {
- *ca_curr = ciph_curr->cipher;
- ca_curr++;
- ciph_curr = ciph_curr->next;
- }
-
- /*
- * Now we add the available ones from the cipher_aliases[] table.
- * They represent either one or more algorithms, some of which
- * in any affected category must be supported (set in enabled_mask),
- * or represent a cipher strength value (will be added in any case because algorithms=0).
- */
- for (i = 0; i < num_of_group_aliases; i++)
- {
- unsigned long algorithm_mkey = cipher_aliases[i].algorithm_mkey;
- unsigned long algorithm_auth = cipher_aliases[i].algorithm_auth;
- unsigned long algorithm_enc = cipher_aliases[i].algorithm_enc;
- unsigned long algorithm_mac = cipher_aliases[i].algorithm_mac;
- unsigned long algorithm_ssl = cipher_aliases[i].algorithm_ssl;
-
- if (algorithm_mkey)
- if ((algorithm_mkey & mask_mkey) == 0)
- continue;
-
- if (algorithm_auth)
- if ((algorithm_auth & mask_auth) == 0)
- continue;
-
- if (algorithm_enc)
- if ((algorithm_enc & mask_enc) == 0)
- continue;
-
- if (algorithm_mac)
- if ((algorithm_mac & mask_mac) == 0)
- continue;
-
- if (algorithm_ssl)
- if ((algorithm_ssl & mask_ssl) == 0)
- continue;
-
- *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
- ca_curr++;
- }
-
- *ca_curr = NULL; /* end of list */
- }
-
-static void ssl_cipher_apply_rule(unsigned long cipher_id,
- unsigned long alg_mkey, unsigned long alg_auth,
- unsigned long alg_enc, unsigned long alg_mac,
- unsigned long alg_ssl,
- unsigned long algo_strength,
- int rule, int strength_bits,
- CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
- {
- CIPHER_ORDER *head, *tail, *curr, *curr2, *last;
- const SSL_CIPHER *cp;
- int reverse = 0;
+ int num_of_group_aliases,
+ uint32_t disabled_mkey,
+ uint32_t disabled_auth,
+ uint32_t disabled_enc,
+ uint32_t disabled_mac,
+ CIPHER_ORDER *head)
+{
+ CIPHER_ORDER *ciph_curr;
+ const SSL_CIPHER **ca_curr;
+ int i;
+ uint32_t mask_mkey = ~disabled_mkey;
+ uint32_t mask_auth = ~disabled_auth;
+ uint32_t mask_enc = ~disabled_enc;
+ uint32_t mask_mac = ~disabled_mac;
+
+ /*
+ * First, add the real ciphers as already collected
+ */
+ ciph_curr = head;
+ ca_curr = ca_list;
+ while (ciph_curr != NULL) {
+ *ca_curr = ciph_curr->cipher;
+ ca_curr++;
+ ciph_curr = ciph_curr->next;
+ }
+
+ /*
+ * Now we add the available ones from the cipher_aliases[] table.
+ * They represent either one or more algorithms, some of which
+ * in any affected category must be supported (set in enabled_mask),
+ * or represent a cipher strength value (will be added in any case because algorithms=0).
+ */
+ for (i = 0; i < num_of_group_aliases; i++) {
+ uint32_t algorithm_mkey = cipher_aliases[i].algorithm_mkey;
+ uint32_t algorithm_auth = cipher_aliases[i].algorithm_auth;
+ uint32_t algorithm_enc = cipher_aliases[i].algorithm_enc;
+ uint32_t algorithm_mac = cipher_aliases[i].algorithm_mac;
+
+ 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;
+
+ *ca_curr = (SSL_CIPHER *)(cipher_aliases + i);
+ ca_curr++;
+ }
+
+ *ca_curr = NULL; /* end of list */
+}
+
+static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey,
+ uint32_t alg_auth, uint32_t alg_enc,
+ uint32_t alg_mac, int min_tls,
+ uint32_t algo_strength, int rule,
+ int32_t strength_bits, CIPHER_ORDER **head_p,
+ CIPHER_ORDER **tail_p)
+{
+ CIPHER_ORDER *head, *tail, *curr, *next, *last;
+ const SSL_CIPHER *cp;
+ int reverse = 0;
#ifdef CIPHER_DEBUG
- 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);
+ fprintf(stderr,
+ "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n",
+ rule, alg_mkey, alg_auth, alg_enc, alg_mac, min_tls,
+ algo_strength, strength_bits);
#endif
- if (rule == CIPHER_DEL)
- reverse = 1; /* needed to maintain sorting between currently deleted ciphers */
-
- head = *head_p;
- tail = *tail_p;
-
- if (reverse)
- {
- curr = tail;
- last = head;
- }
- else
- {
- curr = head;
- last = tail;
- }
-
- curr2 = curr;
- for (;;)
- {
- if ((curr == NULL) || (curr == last)) break;
- curr = curr2;
- curr2 = reverse ? curr->prev : curr->next;
-
- cp = curr->cipher;
-
- /*
- * Selection criteria is either the value of strength_bits
- * or the algorithms used.
- */
- if (strength_bits >= 0)
- {
- if (strength_bits != cp->strength_bits)
- continue;
- }
- else
- {
+ if (rule == CIPHER_DEL || rule == CIPHER_BUMP)
+ reverse = 1; /* needed to maintain sorting between
+ * currently deleted ciphers */
+
+ head = *head_p;
+ tail = *tail_p;
+
+ if (reverse) {
+ next = tail;
+ last = head;
+ } else {
+ next = head;
+ last = tail;
+ }
+
+ curr = NULL;
+ for (;;) {
+ if (curr == last)
+ break;
+
+ curr = next;
+
+ if (curr == NULL)
+ break;
+
+ next = reverse ? curr->prev : curr->next;
+
+ cp = curr->cipher;
+
+ /*
+ * Selection criteria is either the value of strength_bits
+ * or the algorithms used.
+ */
+ if (strength_bits >= 0) {
+ if (strength_bits != cp->strength_bits)
+ continue;
+ } else {
#ifdef CIPHER_DEBUG
- 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);
+ fprintf(stderr,
+ "\nName: %s:\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n",
+ cp->name, cp->algorithm_mkey, cp->algorithm_auth,
+ cp->algorithm_enc, cp->algorithm_mac, cp->algorithm_ssl,
+ cp->algo_strength);
#endif
-#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
- if (cipher_id && cipher_id != cp->id)
- continue;
-#endif
- if (alg_mkey && !(alg_mkey & cp->algorithm_mkey))
- continue;
- if (alg_auth && !(alg_auth & cp->algorithm_auth))
- continue;
- if (alg_enc && !(alg_enc & cp->algorithm_enc))
- continue;
- if (alg_mac && !(alg_mac & cp->algorithm_mac))
- continue;
- if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
- continue;
- if ((algo_strength & SSL_EXP_MASK) && !(algo_strength & SSL_EXP_MASK & cp->algo_strength))
- continue;
- if ((algo_strength & SSL_STRONG_MASK) && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength))
- continue;
- }
+ if (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 (min_tls && (min_tls != cp->min_tls))
+ continue;
+ if (algo_strength && !(algo_strength & cp->algo_strength))
+ continue;
+ if ((algo_strength & SSL_DEFAULT_MASK)
+ && !(algo_strength & SSL_DEFAULT_MASK & cp->algo_strength))
+ continue;
+ }
#ifdef CIPHER_DEBUG
- printf("Action = %d\n", rule);
+ fprintf(stderr, "Action = %d\n", rule);
#endif
- /* add the cipher if it has not been added yet. */
- if (rule == CIPHER_ADD)
- {
- /* reverse == 0 */
- if (!curr->active)
- {
- ll_append_tail(&head, curr, &tail);
- curr->active = 1;
- }
- }
- /* Move the added cipher to this location */
- else if (rule == CIPHER_ORD)
- {
- /* reverse == 0 */
- if (curr->active)
- {
- ll_append_tail(&head, curr, &tail);
- }
- }
- else if (rule == CIPHER_DEL)
- {
- /* reverse == 1 */
- if (curr->active)
- {
- /* most recently deleted ciphersuites get best positions
- * for any future CIPHER_ADD (note that the CIPHER_DEL loop
- * works in reverse to maintain the order) */
- ll_append_head(&head, curr, &tail);
- curr->active = 0;
- }
- }
- else if (rule == CIPHER_KILL)
- {
- /* reverse == 0 */
- if (head == curr)
- head = curr->next;
- else
- curr->prev->next = curr->next;
- if (tail == curr)
- tail = curr->prev;
- curr->active = 0;
- if (curr->next != NULL)
- curr->next->prev = curr->prev;
- if (curr->prev != NULL)
- curr->prev->next = curr->next;
- curr->next = NULL;
- curr->prev = NULL;
- }
- }
-
- *head_p = head;
- *tail_p = tail;
- }
+ /* 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_BUMP) {
+ if (curr->active)
+ ll_append_head(&head, curr, &tail);
+ } 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);
- }
+ CIPHER_ORDER **tail_p)
+{
+ int32_t max_strength_bits;
+ int 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_zalloc(sizeof(int) * (max_strength_bits + 1));
+ if (number_uses == NULL) {
+ SSLerr(SSL_F_SSL_CIPHER_STRENGTH_SORT, ERR_R_MALLOC_FAILURE);
+ return (0);
+ }
+
+ /*
+ * 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, CERT *c)
- {
- unsigned long alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength;
- const char *l, *buf;
- int j, multi, found, rule, retval, ok, buflen;
- unsigned long cipher_id = 0;
- char ch;
-
- retval = 1;
- l = rule_str;
- for (;;)
- {
- ch = *l;
-
- if (ch == '\0')
- break; /* done */
- if (ch == '-')
- { rule = CIPHER_DEL; l++; }
- else if (ch == '+')
- { rule = CIPHER_ORD; l++; }
- else if (ch == '!')
- { rule = CIPHER_KILL; l++; }
- else if (ch == '@')
- { rule = CIPHER_SPECIAL; l++; }
- else
- { rule = CIPHER_ADD; }
-
- if (ITEM_SEP(ch))
- {
- l++;
- continue;
- }
-
- alg_mkey = 0;
- alg_auth = 0;
- alg_enc = 0;
- alg_mac = 0;
- alg_ssl = 0;
- algo_strength = 0;
-
- for (;;)
- {
- ch = *l;
- buf = l;
- buflen = 0;
+ CIPHER_ORDER **head_p,
+ CIPHER_ORDER **tail_p,
+ const SSL_CIPHER **ca_list, CERT *c)
+{
+ uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, algo_strength;
+ int min_tls;
+ const char *l, *buf;
+ int j, multi, found, rule, retval, ok, buflen;
+ uint32_t cipher_id = 0;
+ char ch;
+
+ retval = 1;
+ l = rule_str;
+ for (;;) {
+ ch = *l;
+
+ if (ch == '\0')
+ break; /* done */
+ if (ch == '-') {
+ rule = CIPHER_DEL;
+ l++;
+ } else if (ch == '+') {
+ rule = CIPHER_ORD;
+ l++;
+ } else if (ch == '!') {
+ rule = CIPHER_KILL;
+ l++;
+ } else if (ch == '@') {
+ rule = CIPHER_SPECIAL;
+ l++;
+ } else {
+ rule = CIPHER_ADD;
+ }
+
+ if (ITEM_SEP(ch)) {
+ l++;
+ continue;
+ }
+
+ alg_mkey = 0;
+ alg_auth = 0;
+ alg_enc = 0;
+ alg_mac = 0;
+ min_tls = 0;
+ algo_strength = 0;
+
+ for (;;) {
+ ch = *l;
+ buf = l;
+ buflen = 0;
#ifndef CHARSET_EBCDIC
- while ( ((ch >= 'A') && (ch <= 'Z')) ||
- ((ch >= '0') && (ch <= '9')) ||
- ((ch >= 'a') && (ch <= 'z')) ||
- (ch == '-') || (ch == '.') ||
- (ch == '='))
+ while (((ch >= 'A') && (ch <= 'Z')) ||
+ ((ch >= '0') && (ch <= '9')) ||
+ ((ch >= 'a') && (ch <= 'z')) ||
+ (ch == '-') || (ch == '.') || (ch == '='))
#else
- while ( isalnum(ch) || (ch == '-') || (ch == '.') ||
- (ch == '='))
+ while (isalnum(ch) || (ch == '-') || (ch == '.') || (ch == '='))
#endif
- {
- ch = *(++l);
- buflen++;
- }
-
- if (buflen == 0)
- {
- /*
- * We hit something we cannot deal with,
- * it is no command or separator nor
- * alphanumeric, so we call this an error.
- */
- SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
- SSL_R_INVALID_COMMAND);
- retval = found = 0;
- l++;
- break;
- }
-
- if (rule == CIPHER_SPECIAL)
- {
- found = 0; /* unused -- avoid compiler warning */
- break; /* special treatment */
- }
-
- /* check for multi-part specification */
- if (ch == '+')
- {
- multi=1;
- l++;
- }
- else
- multi=0;
-
- /*
- * Now search for the cipher alias in the ca_list. Be careful
- * with the strncmp, because the "buflen" limitation
- * will make the rule "ADH:SOME" and the cipher
- * "ADH-MY-CIPHER" look like a match for buflen=3.
- * So additionally check whether the cipher name found
- * has the correct length. We can save a strlen() call:
- * just checking for the '\0' at the right place is
- * sufficient, we have to strncmp() anyway. (We cannot
- * use strcmp(), because buf is not '\0' terminated.)
- */
- j = found = 0;
- cipher_id = 0;
- while (ca_list[j])
- {
- if (!strncmp(buf, ca_list[j]->name, buflen) &&
- (ca_list[j]->name[buflen] == '\0'))
- {
- found = 1;
- break;
- }
- else
- j++;
- }
-
- if (!found)
- break; /* ignore this entry */
-
- if (ca_list[j]->algorithm_mkey)
- {
- if (alg_mkey)
- {
- alg_mkey &= ca_list[j]->algorithm_mkey;
- if (!alg_mkey) { found = 0; break; }
- }
- else
- alg_mkey = ca_list[j]->algorithm_mkey;
- }
-
- if (ca_list[j]->algorithm_auth)
- {
- if (alg_auth)
- {
- alg_auth &= ca_list[j]->algorithm_auth;
- if (!alg_auth) { found = 0; break; }
- }
- else
- alg_auth = ca_list[j]->algorithm_auth;
- }
-
- if (ca_list[j]->algorithm_enc)
- {
- if (alg_enc)
- {
- alg_enc &= ca_list[j]->algorithm_enc;
- if (!alg_enc) { found = 0; break; }
- }
- else
- alg_enc = ca_list[j]->algorithm_enc;
- }
-
- if (ca_list[j]->algorithm_mac)
- {
- if (alg_mac)
- {
- alg_mac &= ca_list[j]->algorithm_mac;
- if (!alg_mac) { found = 0; break; }
- }
- else
- alg_mac = ca_list[j]->algorithm_mac;
- }
-
- if (ca_list[j]->algo_strength & SSL_EXP_MASK)
- {
- if (algo_strength & SSL_EXP_MASK)
- {
- algo_strength &= (ca_list[j]->algo_strength & SSL_EXP_MASK) | ~SSL_EXP_MASK;
- if (!(algo_strength & SSL_EXP_MASK)) { found = 0; break; }
- }
- else
- algo_strength |= ca_list[j]->algo_strength & SSL_EXP_MASK;
- }
-
- if (ca_list[j]->algo_strength & SSL_STRONG_MASK)
- {
- if (algo_strength & SSL_STRONG_MASK)
- {
- algo_strength &= (ca_list[j]->algo_strength & SSL_STRONG_MASK) | ~SSL_STRONG_MASK;
- if (!(algo_strength & SSL_STRONG_MASK)) { found = 0; break; }
- }
- else
- algo_strength |= ca_list[j]->algo_strength & SSL_STRONG_MASK;
- }
-
- if (ca_list[j]->valid)
- {
- /* explicit ciphersuite found; its protocol version
- * does not become part of the search pattern!*/
-
- cipher_id = ca_list[j]->id;
- }
- else
- {
- /* not an explicit ciphersuite; only in this case, the
- * protocol version is considered part of the search pattern */
-
- if (ca_list[j]->algorithm_ssl)
- {
- if (alg_ssl)
- {
- alg_ssl &= ca_list[j]->algorithm_ssl;
- if (!alg_ssl) { found = 0; break; }
- }
- else
- alg_ssl = ca_list[j]->algorithm_ssl;
- }
- }
-
- if (!multi) break;
- }
-
- /*
- * Ok, we have the rule, now apply it
- */
- if (rule == CIPHER_SPECIAL)
- { /* special command */
- ok = 0;
- if ((buflen == 8) &&
- !strncmp(buf, "STRENGTH", 8))
- ok = ssl_cipher_strength_sort(head_p, tail_p);
- else if (buflen == 10 && !strncmp(buf, "SECLEVEL=", 9))
- {
- int level = buf[9] - '0';
- if (level < 0 || level > 5)
- {
- SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
- SSL_R_INVALID_COMMAND);
- }
- else
- {
- c->sec_level = level;
- ok = 1;
- }
- }
- 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);
- }
+ {
+ ch = *(++l);
+ buflen++;
+ }
+
+ if (buflen == 0) {
+ /*
+ * We hit something we cannot deal with,
+ * it is no command or separator nor
+ * alphanumeric, so we call this an error.
+ */
+ SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
+ SSL_R_INVALID_COMMAND);
+ retval = found = 0;
+ l++;
+ break;
+ }
+
+ if (rule == CIPHER_SPECIAL) {
+ found = 0; /* unused -- avoid compiler warning */
+ break; /* special treatment */
+ }
+
+ /* check for multi-part specification */
+ if (ch == '+') {
+ multi = 1;
+ l++;
+ } else
+ multi = 0;
+
+ /*
+ * Now search for the cipher alias in the ca_list. Be careful
+ * with the strncmp, because the "buflen" limitation
+ * will make the rule "ADH:SOME" and the cipher
+ * "ADH-MY-CIPHER" look like a match for buflen=3.
+ * So additionally check whether the cipher name found
+ * has the correct length. We can save a strlen() call:
+ * just checking for the '\0' at the right place is
+ * sufficient, we have to strncmp() anyway. (We cannot
+ * use strcmp(), because buf is not '\0' terminated.)
+ */
+ j = found = 0;
+ cipher_id = 0;
+ while (ca_list[j]) {
+ if (strncmp(buf, ca_list[j]->name, buflen) == 0
+ && (ca_list[j]->name[buflen] == '\0')) {
+ found = 1;
+ break;
+ } else
+ j++;
+ }
+
+ if (!found)
+ break; /* ignore this entry */
+
+ if (ca_list[j]->algorithm_mkey) {
+ if (alg_mkey) {
+ alg_mkey &= ca_list[j]->algorithm_mkey;
+ if (!alg_mkey) {
+ found = 0;
+ break;
+ }
+ } else
+ alg_mkey = ca_list[j]->algorithm_mkey;
+ }
+
+ if (ca_list[j]->algorithm_auth) {
+ if (alg_auth) {
+ alg_auth &= ca_list[j]->algorithm_auth;
+ if (!alg_auth) {
+ found = 0;
+ break;
+ }
+ } else
+ alg_auth = ca_list[j]->algorithm_auth;
+ }
+
+ if (ca_list[j]->algorithm_enc) {
+ if (alg_enc) {
+ alg_enc &= ca_list[j]->algorithm_enc;
+ if (!alg_enc) {
+ found = 0;
+ break;
+ }
+ } else
+ alg_enc = ca_list[j]->algorithm_enc;
+ }
+
+ if (ca_list[j]->algorithm_mac) {
+ if (alg_mac) {
+ alg_mac &= ca_list[j]->algorithm_mac;
+ if (!alg_mac) {
+ found = 0;
+ break;
+ }
+ } else
+ alg_mac = ca_list[j]->algorithm_mac;
+ }
+
+ if (ca_list[j]->algo_strength) {
+ if (algo_strength) {
+ algo_strength &= ca_list[j]->algo_strength;
+ if (!algo_strength) {
+ found = 0;
+ break;
+ }
+ } else
+ algo_strength = ca_list[j]->algo_strength;
+ }
+
+ if (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) {
+ if (algo_strength & SSL_DEFAULT_MASK) {
+ algo_strength &=
+ (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) |
+ ~SSL_DEFAULT_MASK;
+ if (!(algo_strength & SSL_DEFAULT_MASK)) {
+ found = 0;
+ break;
+ }
+ } else
+ algo_strength |=
+ ca_list[j]->algo_strength & SSL_DEFAULT_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]->min_tls) {
+ if (min_tls != 0 && min_tls != ca_list[j]->min_tls) {
+ found = 0;
+ break;
+ } else {
+ min_tls = ca_list[j]->min_tls;
+ }
+ }
+ }
+
+ 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) == 0)
+ ok = ssl_cipher_strength_sort(head_p, tail_p);
+ else if (buflen == 10 && strncmp(buf, "SECLEVEL=", 9) == 0) {
+ int level = buf[9] - '0';
+ if (level < 0 || level > 5) {
+ SSLerr(SSL_F_SSL_CIPHER_PROCESS_RULESTR,
+ SSL_R_INVALID_COMMAND);
+ } else {
+ c->sec_level = level;
+ ok = 1;
+ }
+ } 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,
+ min_tls, algo_strength, rule, -1, head_p,
+ tail_p);
+ } else {
+ while ((*l != '\0') && !ITEM_SEP(*l))
+ l++;
+ }
+ if (*l == '\0')
+ break; /* done */
+ }
+
+ return (retval);
+}
+
#ifndef OPENSSL_NO_EC
static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c,
- const char **prule_str)
- {
- unsigned int suiteb_flags = 0, suiteb_comb2 = 0;
- if (!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, "SUITEB128C2"))
- {
- suiteb_comb2 = 1;
- suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
- }
- 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: if TLS 1.2 ciphers allowed we can use Suite B */
-
- if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS))
- {
- if (meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
- SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
- SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);
- else
- SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
- SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
- return 0;
- }
-
- switch(suiteb_flags)
- {
- case SSL_CERT_FLAG_SUITEB_128_LOS:
- if (suiteb_comb2)
- *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
- else
- *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
- break;
- case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
- *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256";
- break;
- case SSL_CERT_FLAG_SUITEB_192_LOS:
- *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
- break;
- }
- /* Set auto ECDH parameter determination */
- c->ecdh_tmp_auto = 1;
- return 1;
- }
+ const char **prule_str)
+{
+ unsigned int suiteb_flags = 0, suiteb_comb2 = 0;
+ if (strncmp(*prule_str, "SUITEB128ONLY", 13) == 0) {
+ suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY;
+ } else if (strncmp(*prule_str, "SUITEB128C2", 11) == 0) {
+ suiteb_comb2 = 1;
+ suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
+ } else if (strncmp(*prule_str, "SUITEB128", 9) == 0) {
+ suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS;
+ } else if (strncmp(*prule_str, "SUITEB192", 9) == 0) {
+ suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS;
+ }
+
+ if (suiteb_flags) {
+ c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS;
+ c->cert_flags |= suiteb_flags;
+ } else
+ suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS;
+
+ if (!suiteb_flags)
+ return 1;
+ /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */
+
+ if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) {
+ SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
+ SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE);
+ return 0;
+ }
+# ifndef OPENSSL_NO_EC
+ switch (suiteb_flags) {
+ case SSL_CERT_FLAG_SUITEB_128_LOS:
+ if (suiteb_comb2)
+ *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
+ else
+ *prule_str =
+ "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384";
+ break;
+ case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY:
+ *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256";
+ break;
+ case SSL_CERT_FLAG_SUITEB_192_LOS:
+ *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384";
+ break;
+ }
+ return 1;
+# else
+ SSLerr(SSL_F_CHECK_SUITEB_CIPHER_LIST,
+ SSL_R_ECDH_REQUIRED_FOR_SUITEB_MODE);
+ return 0;
+# endif
+}
#endif
-STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method,
- STACK_OF(SSL_CIPHER) **cipher_list,
- STACK_OF(SSL_CIPHER) **cipher_list_by_id,
- const char *rule_str, CERT *c)
- {
- int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases;
- unsigned long disabled_mkey, disabled_auth, disabled_enc, disabled_mac, disabled_ssl;
- STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
- const char *rule_p;
- CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
- const SSL_CIPHER **ca_list = NULL;
-
- /*
- * Return with error if nothing to do.
- */
- if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
- return NULL;
+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;
+ uint32_t disabled_mkey, disabled_auth, disabled_enc, disabled_mac;
+ STACK_OF(SSL_CIPHER) *cipherstack, *tmp_cipher_list;
+ const char *rule_p;
+ CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr;
+ const SSL_CIPHER **ca_list = NULL;
+
+ /*
+ * Return with error if nothing to do.
+ */
+ if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL)
+ return NULL;
#ifndef OPENSSL_NO_EC
- if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
- return NULL;
+ if (!check_suiteb_cipher_list(ssl_method, c, &rule_str))
+ return NULL;
#endif
- /*
- * To reduce the work to do we only want to process the compiled
- * in algorithms, so we first get the mask of disabled ciphers.
- */
- ssl_cipher_get_disabled(&disabled_mkey, &disabled_auth, &disabled_enc, &disabled_mac, &disabled_ssl);
-
- /*
- * Now we have to collect the available ciphers from the compiled
- * in ciphers. We cannot get more than the number compiled in, so
- * it is used for allocation.
- */
- num_of_ciphers = ssl_method->num_ciphers();
-#ifdef KSSL_DEBUG
- 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_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail);
- ssl_cipher_apply_rule(0, SSL_kECDHE, 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, c);
- 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, c);
-
- OPENSSL_free((void *)ca_list); /* Not needed anymore */
-
- if (!ok)
- { /* Rule processing failure */
- OPENSSL_free(co_list);
- return(NULL);
- }
-
- /*
- * Allocate new "cipherstack" for the result, return with error
- * if we cannot get one.
- */
- if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL)
- {
- OPENSSL_free(co_list);
- return(NULL);
- }
-
- /*
- * The cipher selection for the list is done. The ciphers are added
- * to the resulting precedence to the STACK_OF(SSL_CIPHER).
- */
- for (curr = head; curr != NULL; curr = curr->next)
- {
-#ifdef OPENSSL_FIPS
- if (curr->active && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS))
-#else
- if (curr->active)
-#endif
- {
- sk_SSL_CIPHER_push(cipherstack, curr->cipher);
+ /*
+ * To reduce the work to do we only want to process the compiled
+ * in algorithms, so we first get the mask of disabled ciphers.
+ */
+
+ disabled_mkey = disabled_mkey_mask;
+ disabled_auth = disabled_auth_mask;
+ disabled_enc = disabled_enc_mask;
+ disabled_mac = disabled_mac_mask;
+
+ /*
+ * 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();
+
+ co_list = OPENSSL_malloc(sizeof(*co_list) * 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, co_list, &head,
+ &tail);
+
+ /* Now arrange all ciphers by preference. */
+
+ /*
+ * Everything else being equal, prefer ephemeral ECDH over other key
+ * exchange mechanisms.
+ * For consistency, prefer ECDSA over RSA (though this only matters if the
+ * server has both certificates, and is using the DEFAULT, or a client
+ * preference).
+ */
+ ssl_cipher_apply_rule(0, SSL_kECDHE, SSL_aECDSA, 0, 0, 0, 0, CIPHER_ADD,
+ -1, &head, &tail);
+ ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head,
+ &tail);
+ ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head,
+ &tail);
+
+
+ /* Within each strength group, we prefer GCM over CHACHA... */
+ ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM, 0, 0, 0, CIPHER_ADD, -1,
+ &head, &tail);
+ ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20, 0, 0, 0, CIPHER_ADD, -1,
+ &head, &tail);
+
+ /*
+ * ...and generally, our preferred cipher is AES.
+ * Note that AEADs will be bumped to take preference after sorting by
+ * strength.
+ */
+ ssl_cipher_apply_rule(0, 0, 0, SSL_AES ^ SSL_AESGCM, 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);
+
+ /*
+ * 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);
+
+ /* 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;
+ }
+
+ /*
+ * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs.
+ * TODO(openssl-team): is there an easier way to accomplish all this?
+ */
+ ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION, 0, CIPHER_BUMP, -1,
+ &head, &tail);
+
+ /*
+ * Irrespective of strength, enforce the following order:
+ * (EC)DHE + AEAD > (EC)DHE > rest of AEAD > rest.
+ * Within each group, ciphers remain sorted by strength and previous
+ * preference, i.e.,
+ * 1) ECDHE > DHE
+ * 2) GCM > CHACHA
+ * 3) AES > rest
+ * 4) TLS 1.2 > legacy
+ *
+ * Because we now bump ciphers to the top of the list, we proceed in
+ * reverse order of preference.
+ */
+ ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD, 0, 0, CIPHER_BUMP, -1,
+ &head, &tail);
+ ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, 0, 0, 0,
+ CIPHER_BUMP, -1, &head, &tail);
+ ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, SSL_AEAD, 0, 0,
+ CIPHER_BUMP, -1, &head, &tail);
+
+ /* 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 = OSSL_NELEM(cipher_aliases);
+ num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1;
+ ca_list = OPENSSL_malloc(sizeof(*ca_list) * 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, 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, c);
+ 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, c);
+
+ OPENSSL_free(ca_list); /* Not needed anymore */
+
+ if (!ok) { /* Rule processing failure */
+ OPENSSL_free(co_list);
+ return (NULL);
+ }
+
+ /*
+ * Allocate new "cipherstack" for the result, return with error
+ * if we cannot get one.
+ */
+ if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) {
+ OPENSSL_free(co_list);
+ return (NULL);
+ }
+
+ /*
+ * The cipher selection for the list is done. The ciphers are added
+ * to the resulting precedence to the STACK_OF(SSL_CIPHER).
+ */
+ for (curr = head; curr != NULL; curr = curr->next) {
+ if (curr->active
+ && (!FIPS_mode() || curr->cipher->algo_strength & SSL_FIPS)) {
+ if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) {
+ OPENSSL_free(co_list);
+ sk_SSL_CIPHER_free(cipherstack);
+ return NULL;
+ }
#ifdef CIPHER_DEBUG
- printf("<%s>\n",curr->cipher->name);
+ fprintf(stderr, "<%s>\n", curr->cipher->name);
#endif
- }
- }
- OPENSSL_free(co_list); /* Not needed any longer */
-
- tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
- if (tmp_cipher_list == NULL)
- {
- sk_SSL_CIPHER_free(cipherstack);
- return NULL;
- }
- if (*cipher_list != NULL)
- sk_SSL_CIPHER_free(*cipher_list);
- *cipher_list = cipherstack;
- if (*cipher_list_by_id != NULL)
- sk_SSL_CIPHER_free(*cipher_list_by_id);
- *cipher_list_by_id = tmp_cipher_list;
- (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
-
- sk_SSL_CIPHER_sort(*cipher_list_by_id);
- return(cipherstack);
- }
+ }
+ }
+ OPENSSL_free(co_list); /* Not needed any longer */
+
+ tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack);
+ if (tmp_cipher_list == NULL) {
+ sk_SSL_CIPHER_free(cipherstack);
+ return NULL;
+ }
+ sk_SSL_CIPHER_free(*cipher_list);
+ *cipher_list = cipherstack;
+ if (*cipher_list_by_id != NULL)
+ sk_SSL_CIPHER_free(*cipher_list_by_id);
+ *cipher_list_by_id = tmp_cipher_list;
+ (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id,
+ ssl_cipher_ptr_id_cmp);
+
+ sk_SSL_CIPHER_sort(*cipher_list_by_id);
+ return (cipherstack);
+}
char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
- {
- int is_export,pkl,kl;
- const char *ver,*exp_str;
- const char *kx,*au,*enc,*mac;
- unsigned long alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl,alg2;
-#ifdef KSSL_DEBUG
- static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s AL=%lx/%lx/%lx/%lx/%lx\n";
-#else
- static const char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
-#endif /* KSSL_DEBUG */
-
- alg_mkey = cipher->algorithm_mkey;
- alg_auth = cipher->algorithm_auth;
- alg_enc = cipher->algorithm_enc;
- alg_mac = cipher->algorithm_mac;
- alg_ssl = cipher->algorithm_ssl;
-
- alg2=cipher->algorithm2;
-
- is_export=SSL_C_IS_EXPORT(cipher);
- pkl=SSL_C_EXPORT_PKEYLENGTH(cipher);
- kl=SSL_C_EXPORT_KEYLENGTH(cipher);
- exp_str=is_export?" export":"";
-
- if (alg_ssl & SSL_SSLV2)
- ver="SSLv2";
- else if (alg_ssl & SSL_SSLV3)
- ver="SSLv3";
- else if (alg_ssl & SSL_TLSV1_2)
- ver="TLSv1.2";
- else
- ver="unknown";
-
- switch (alg_mkey)
- {
- case SSL_kRSA:
- kx=is_export?(pkl == 512 ? "RSA(512)" : "RSA(1024)"):"RSA";
- break;
- case SSL_kDHr:
- kx="DH/RSA";
- break;
- case SSL_kDHd:
- kx="DH/DSS";
- break;
- case SSL_kKRB5:
- kx="KRB5";
- break;
- case SSL_kDHE:
- 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_kECDHE:
- kx="ECDH";
- break;
- case SSL_kPSK:
- kx="PSK";
- break;
- case SSL_kSRP:
- kx="SRP";
- break;
- default:
- kx="unknown";
- }
-
- switch (alg_auth)
- {
- case SSL_aRSA:
- au="RSA";
- break;
- case SSL_aDSS:
- au="DSS";
- break;
- case SSL_aDH:
- au="DH";
- break;
- case SSL_aKRB5:
- au="KRB5";
- break;
- case SSL_aECDH:
- au="ECDH";
- break;
- case SSL_aNULL:
- au="None";
- break;
- case SSL_aECDSA:
- au="ECDSA";
- break;
- case SSL_aPSK:
- au="PSK";
- break;
- default:
- au="unknown";
- break;
- }
-
- switch (alg_enc)
- {
- case SSL_DES:
- enc=(is_export && kl == 5)?"DES(40)":"DES(56)";
- break;
- case SSL_3DES:
- enc="3DES(168)";
- break;
- case SSL_RC4:
- enc=is_export?(kl == 5 ? "RC4(40)" : "RC4(56)")
- :((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)");
- break;
- case SSL_RC2:
- enc=is_export?(kl == 5 ? "RC2(40)" : "RC2(56)"):"RC2(128)";
- break;
- case SSL_IDEA:
- enc="IDEA(128)";
- break;
- case SSL_eNULL:
- enc="None";
- break;
- case SSL_AES128:
- enc="AES(128)";
- break;
- case SSL_AES256:
- enc="AES(256)";
- break;
- case SSL_AES128GCM:
- enc="AESGCM(128)";
- break;
- case SSL_AES256GCM:
- enc="AESGCM(256)";
- break;
- case SSL_CAMELLIA128:
- enc="Camellia(128)";
- break;
- case SSL_CAMELLIA256:
- enc="Camellia(256)";
- break;
- case SSL_SEED:
- enc="SEED(128)";
- break;
- default:
- enc="unknown";
- break;
- }
-
- switch (alg_mac)
- {
- case SSL_MD5:
- mac="MD5";
- break;
- case SSL_SHA1:
- mac="SHA1";
- break;
- case SSL_SHA256:
- mac="SHA256";
- break;
- case SSL_SHA384:
- mac="SHA384";
- break;
- case SSL_AEAD:
- mac="AEAD";
- break;
- default:
- mac="unknown";
- break;
- }
-
- if (buf == NULL)
- {
- len=128;
- buf=OPENSSL_malloc(len);
- if (buf == NULL) return("OPENSSL_malloc Error");
- }
- else if (len < 128)
- return("Buffer too small");
-
-#ifdef KSSL_DEBUG
- BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str,alg_mkey,alg_auth,alg_enc,alg_mac,alg_ssl);
-#else
- BIO_snprintf(buf,len,format,cipher->name,ver,kx,au,enc,mac,exp_str);
-#endif /* KSSL_DEBUG */
- return(buf);
- }
-
-char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
- {
- int i;
-
- if (c == NULL) return("(NONE)");
- i=(int)(c->id>>24L);
- if (i == 3)
- return("TLSv1/SSLv3");
- else if (i == 2)
- return("SSLv2");
- else
- return("unknown");
- }
+{
+ const char *ver;
+ const char *kx, *au, *enc, *mac;
+ uint32_t alg_mkey, alg_auth, alg_enc, alg_mac;
+ static const char *format =
+ "%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s\n";
+
+ if (buf == NULL) {
+ len = 128;
+ buf = OPENSSL_malloc(len);
+ if (buf == NULL)
+ return NULL;
+ } else if (len < 128)
+ return NULL;
+
+ alg_mkey = cipher->algorithm_mkey;
+ alg_auth = cipher->algorithm_auth;
+ alg_enc = cipher->algorithm_enc;
+ alg_mac = cipher->algorithm_mac;
+
+ ver = ssl_protocol_to_string(cipher->min_tls);
+
+ switch (alg_mkey) {
+ case SSL_kRSA:
+ kx = "RSA";
+ break;
+ case SSL_kDHE:
+ kx = "DH";
+ break;
+ case SSL_kECDHE:
+ kx = "ECDH";
+ break;
+ case SSL_kPSK:
+ kx = "PSK";
+ break;
+ case SSL_kRSAPSK:
+ kx = "RSAPSK";
+ break;
+ case SSL_kECDHEPSK:
+ kx = "ECDHEPSK";
+ break;
+ case SSL_kDHEPSK:
+ kx = "DHEPSK";
+ break;
+ case SSL_kSRP:
+ kx = "SRP";
+ break;
+ case SSL_kGOST:
+ kx = "GOST";
+ break;
+ default:
+ kx = "unknown";
+ }
+
+ switch (alg_auth) {
+ case SSL_aRSA:
+ au = "RSA";
+ break;
+ case SSL_aDSS:
+ au = "DSS";
+ break;
+ case SSL_aNULL:
+ au = "None";
+ break;
+ case SSL_aECDSA:
+ au = "ECDSA";
+ break;
+ case SSL_aPSK:
+ au = "PSK";
+ break;
+ case SSL_aSRP:
+ au = "SRP";
+ break;
+ case SSL_aGOST01:
+ au = "GOST01";
+ break;
+ /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */
+ case (SSL_aGOST12 | SSL_aGOST01):
+ au = "GOST12";
+ break;
+ default:
+ au = "unknown";
+ break;
+ }
+
+ switch (alg_enc) {
+ case SSL_DES:
+ enc = "DES(56)";
+ break;
+ case SSL_3DES:
+ enc = "3DES(168)";
+ break;
+ case SSL_RC4:
+ enc = "RC4(128)";
+ break;
+ case SSL_RC2:
+ enc = "RC2(128)";
+ break;
+ case SSL_IDEA:
+ enc = "IDEA(128)";
+ break;
+ case SSL_eNULL:
+ enc = "None";
+ break;
+ case SSL_AES128:
+ enc = "AES(128)";
+ break;
+ case SSL_AES256:
+ enc = "AES(256)";
+ break;
+ case SSL_AES128GCM:
+ enc = "AESGCM(128)";
+ break;
+ case SSL_AES256GCM:
+ enc = "AESGCM(256)";
+ break;
+ case SSL_AES128CCM:
+ enc = "AESCCM(128)";
+ break;
+ case SSL_AES256CCM:
+ enc = "AESCCM(256)";
+ break;
+ case SSL_AES128CCM8:
+ enc = "AESCCM8(128)";
+ break;
+ case SSL_AES256CCM8:
+ enc = "AESCCM8(256)";
+ break;
+ case SSL_CAMELLIA128:
+ enc = "Camellia(128)";
+ break;
+ case SSL_CAMELLIA256:
+ enc = "Camellia(256)";
+ break;
+ case SSL_SEED:
+ enc = "SEED(128)";
+ break;
+ case SSL_eGOST2814789CNT:
+ case SSL_eGOST2814789CNT12:
+ enc = "GOST89(256)";
+ break;
+ case SSL_CHACHA20POLY1305:
+ enc = "CHACHA20/POLY1305(256)";
+ break;
+ default:
+ enc = "unknown";
+ break;
+ }
+
+ switch (alg_mac) {
+ case SSL_MD5:
+ mac = "MD5";
+ break;
+ case SSL_SHA1:
+ mac = "SHA1";
+ break;
+ case SSL_SHA256:
+ mac = "SHA256";
+ break;
+ case SSL_SHA384:
+ mac = "SHA384";
+ break;
+ case SSL_AEAD:
+ mac = "AEAD";
+ break;
+ case SSL_GOST89MAC:
+ case SSL_GOST89MAC12:
+ mac = "GOST89";
+ break;
+ case SSL_GOST94:
+ mac = "GOST94";
+ break;
+ case SSL_GOST12_256:
+ case SSL_GOST12_512:
+ mac = "GOST2012";
+ break;
+ default:
+ mac = "unknown";
+ break;
+ }
+
+ BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac);
+
+ return (buf);
+}
+
+const char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
+{
+ if (c == NULL)
+ return "(NONE)";
+
+ /*
+ * Backwards-compatibility crutch. In almost all contexts we report TLS
+ * 1.0 as "TLSv1", but for ciphers we report "TLSv1.0".
+ */
+ if (c->min_tls == TLS1_VERSION)
+ return "TLSv1.0";
+ return ssl_protocol_to_string(c->min_tls);
+}
/* return the actual cipher being used */
const char *SSL_CIPHER_get_name(const SSL_CIPHER *c)
- {
- if (c != NULL)
- return(c->name);
- return("(NONE)");
- }
+{
+ if (c != NULL)
+ return (c->name);
+ return ("(NONE)");
+}
/* number of bits for symmetric cipher */
int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits)
- {
- int ret=0;
-
- if (c != NULL)
- {
- if (alg_bits != NULL) *alg_bits = c->alg_bits;
- ret = c->strength_bits;
- }
- return(ret);
- }
-
-unsigned long SSL_CIPHER_get_id(const SSL_CIPHER *c)
- {
- return c->id;
- }
+{
+ int ret = 0;
+
+ if (c != NULL) {
+ if (alg_bits != NULL)
+ *alg_bits = (int) c->alg_bits;
+ ret = (int) c->strength_bits;
+ }
+ return ret;
+}
+
+uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c)
+{
+ return c->id;
+}
SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n)
- {
- SSL_COMP *ctmp;
- int i,nn;
-
- if ((n == 0) || (sk == NULL)) return(NULL);
- nn=sk_SSL_COMP_num(sk);
- for (i=0; i<nn; i++)
- {
- ctmp=sk_SSL_COMP_value(sk,i);
- if (ctmp->id == n)
- return(ctmp);
- }
- return(NULL);
- }
+{
+ SSL_COMP *ctmp;
+ int i, nn;
+
+ if ((n == 0) || (sk == NULL))
+ return (NULL);
+ nn = sk_SSL_COMP_num(sk);
+ for (i = 0; i < nn; i++) {
+ ctmp = sk_SSL_COMP_value(sk, i);
+ if (ctmp->id == n)
+ return (ctmp);
+ }
+ return (NULL);
+}
#ifdef OPENSSL_NO_COMP
-void *SSL_COMP_get_compression_methods(void)
- {
- return NULL;
- }
-int SSL_COMP_add_compression_method(int id, void *cm)
- {
- return 1;
- }
-
-const char *SSL_COMP_get_name(const void *comp)
- {
- return NULL;
- }
+STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
+{
+ return NULL;
+}
+STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
+ *meths)
+{
+ return meths;
+}
+void SSL_COMP_free_compression_methods(void)
+{
+}
+int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
+{
+ return 1;
+}
+
#else
STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
- {
- load_builtin_compressions();
- return(ssl_comp_methods);
- }
-
-STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) *meths)
- {
- STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
- ssl_comp_methods = meths;
- return old_meths;
- }
+{
+ load_builtin_compressions();
+ return (ssl_comp_methods);
+}
+
+STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
+ *meths)
+{
+ STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
+ ssl_comp_methods = meths;
+ return old_meths;
+}
static void cmeth_free(SSL_COMP *cm)
- {
- OPENSSL_free(cm);
- }
+{
+ OPENSSL_free(cm);
+}
void SSL_COMP_free_compression_methods(void)
- {
- STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
- ssl_comp_methods = NULL;
- sk_SSL_COMP_pop_free(old_meths, cmeth_free);
- }
+{
+ STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
+ ssl_comp_methods = NULL;
+ sk_SSL_COMP_pop_free(old_meths, cmeth_free);
+}
int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
- {
- SSL_COMP *comp;
-
- if (cm == NULL || cm->type == NID_undef)
- return 1;
-
- /* According to draft-ietf-tls-compression-04.txt, the
- compression number ranges should be the following:
-
- 0 to 63: methods defined by the IETF
- 64 to 192: external party methods assigned by IANA
- 193 to 255: reserved for private use */
- if (id < 193 || id > 255)
- {
- SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE);
- return 0;
- }
-
- MemCheck_off();
- comp=(SSL_COMP *)OPENSSL_malloc(sizeof(SSL_COMP));
- comp->id=id;
- comp->method=cm;
- load_builtin_compressions();
- if (ssl_comp_methods
- && sk_SSL_COMP_find(ssl_comp_methods,comp) >= 0)
- {
- OPENSSL_free(comp);
- MemCheck_on();
- SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,SSL_R_DUPLICATE_COMPRESSION_ID);
- return(1);
- }
- else if ((ssl_comp_methods == NULL)
- || !sk_SSL_COMP_push(ssl_comp_methods,comp))
- {
- OPENSSL_free(comp);
- MemCheck_on();
- SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,ERR_R_MALLOC_FAILURE);
- return(1);
- }
- else
- {
- MemCheck_on();
- return(0);
- }
- }
+{
+ SSL_COMP *comp;
+
+ if (cm == NULL || COMP_get_type(cm) == 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;
+ }
+
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE);
+ comp = OPENSSL_malloc(sizeof(*comp));
+ if (comp == NULL) {
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
+ SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
+ return (1);
+ }
+
+ comp->id = id;
+ comp->method = cm;
+ load_builtin_compressions();
+ if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) {
+ OPENSSL_free(comp);
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
+ SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD,
+ SSL_R_DUPLICATE_COMPRESSION_ID);
+ return (1);
+ }
+ if ((ssl_comp_methods == NULL)
+ || !sk_SSL_COMP_push(ssl_comp_methods, comp)) {
+ OPENSSL_free(comp);
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
+ SSLerr(SSL_F_SSL_COMP_ADD_COMPRESSION_METHOD, ERR_R_MALLOC_FAILURE);
+ return (1);
+ }
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE);
+ return (0);
+}
+#endif
const char *SSL_COMP_get_name(const COMP_METHOD *comp)
- {
- if (comp)
- return comp->name;
- return NULL;
- }
+{
+#ifndef OPENSSL_NO_COMP
+ return comp ? COMP_get_name(comp) : NULL;
+#else
+ return NULL;
#endif
+}
+
/* For a cipher return the index corresponding to the certificate type */
int ssl_cipher_get_cert_index(const SSL_CIPHER *c)
- {
- unsigned long alg_k, alg_a;
-
- alg_k = c->algorithm_mkey;
- alg_a = c->algorithm_auth;
-
- if (alg_k & (SSL_kECDHr|SSL_kECDHe))
- {
- /* we don't need to look at SSL_kECDHE
- * since no certificate is needed for
- * anon ECDH and for authenticated
- * ECDHE, the check for the auth
- * algorithm will set i correctly
- * NOTE: For ECDH-RSA, we need an ECC
- * not an RSA cert but for ECDHE-RSA
- * we need an RSA cert. Placing the
- * checks for SSL_kECDH before RSA
- * checks ensures the correct cert is chosen.
- */
- return SSL_PKEY_ECC;
- }
- else if (alg_a & SSL_aECDSA)
- return SSL_PKEY_ECC;
- else if (alg_k & SSL_kDHr)
- return SSL_PKEY_DH_RSA;
- else if (alg_k & SSL_kDHd)
- return SSL_PKEY_DH_DSA;
- else if (alg_a & SSL_aDSS)
- return SSL_PKEY_DSA_SIGN;
- else if (alg_a & SSL_aRSA)
- return SSL_PKEY_RSA_ENC;
- else if (alg_a & SSL_aKRB5)
- /* VRS something else here? */
- return -1;
- else if (alg_a & SSL_aGOST94)
- return SSL_PKEY_GOST94;
- else if (alg_a & SSL_aGOST01)
- return SSL_PKEY_GOST01;
- return -1;
- }
+{
+ uint32_t alg_a;
+
+ alg_a = c->algorithm_auth;
+
+ if (alg_a & SSL_aECDSA)
+ return SSL_PKEY_ECC;
+ else if (alg_a & SSL_aDSS)
+ return SSL_PKEY_DSA_SIGN;
+ else if (alg_a & SSL_aRSA)
+ return SSL_PKEY_RSA_ENC;
+ else if (alg_a & SSL_aGOST12)
+ return SSL_PKEY_GOST_EC;
+ else if (alg_a & SSL_aGOST01)
+ return SSL_PKEY_GOST01;
+
+ return -1;
+}
const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr)
- {
- const SSL_CIPHER *c;
- c = ssl->method->get_cipher_by_char(ptr);
- if (c == NULL || c->valid == 0)
- return NULL;
- return c;
- }
+{
+ const SSL_CIPHER *c = ssl->method->get_cipher_by_char(ptr);
+
+ if (c == NULL || c->valid == 0)
+ return NULL;
+ return c;
+}
const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr)
- {
- return ssl->method->get_cipher_by_char(ptr);
- }
+{
+ return ssl->method->get_cipher_by_char(ptr);
+}
+
+int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c)
+{
+ int i;
+ if (c == NULL)
+ return NID_undef;
+ i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc);
+ if (i == -1)
+ return NID_undef;
+ return ssl_cipher_table_cipher[i].nid;
+}
+
+int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c)
+{
+ int i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac);
+
+ if (i == -1)
+ return NID_undef;
+ return ssl_cipher_table_mac[i].nid;
+}
+
+int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c)
+{
+ int i = ssl_cipher_info_lookup(ssl_cipher_table_kx, c->algorithm_mkey);
+
+ if (i == -1)
+ return NID_undef;
+ return ssl_cipher_table_kx[i].nid;
+}
+
+int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c)
+{
+ int i = ssl_cipher_info_lookup(ssl_cipher_table_auth, c->algorithm_auth);
+
+ if (i == -1)
+ return NID_undef;
+ return ssl_cipher_table_auth[i].nid;
+}
+
+int SSL_CIPHER_is_aead(const SSL_CIPHER *c)
+{
+ return (c->algorithm_mac & SSL_AEAD) ? 1 : 0;
+}
projects / openssl.git / blobdiff