Imported Upstream version 2.3_rc1

1 files changed, 0 insertions, 421 deletions

diff --git a/crypto.h b/crypto.h
deleted file mode 100644
index fcd4661..0000000
--- a/crypto.h
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program (see the file COPYING included with this
- *  distribution); if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef CRYPTO_H
-#define CRYPTO_H
-#ifdef USE_CRYPTO
-
-#define ALLOW_NON_CBC_CIPHERS
-
-/*
- * Does our OpenSSL library support crypto hardware acceleration?
- */
-#if defined(HAVE_OPENSSL_ENGINE_H) && defined(HAVE_ENGINE_LOAD_BUILTIN_ENGINES) && defined(HAVE_ENGINE_REGISTER_ALL_COMPLETE) && defined(HAVE_ENGINE_CLEANUP)
-#define CRYPTO_ENGINE 1
-#else
-#define CRYPTO_ENGINE 0
-#endif
-
-#include <openssl/objects.h>
-#include <openssl/rand.h>
-#include <openssl/evp.h>
-#include <openssl/hmac.h>
-#include <openssl/des.h>
-#include <openssl/md5.h>
-#if NTLM
-#include <openssl/md4.h>
-#endif
-#include <openssl/sha.h>
-#include <openssl/err.h>
-
-#if CRYPTO_ENGINE
-#include <openssl/engine.h>
-#endif
-
-#if SSLEAY_VERSION_NUMBER >= 0x00907000L
-#include <openssl/des_old.h>
-#endif
-
-#include "basic.h"
-#include "buffer.h"
-#include "packet_id.h"
-#include "mtu.h"
-
-/*
- * Workarounds for incompatibilites between OpenSSL libraries.
- * Right now we accept OpenSSL libraries from 0.9.5 to 0.9.7.
- */
-
-#if SSLEAY_VERSION_NUMBER < 0x00907000L
-
-/* Workaround: EVP_CIPHER_mode is defined wrong in OpenSSL 0.9.6 but is fixed in 0.9.7 */
-#undef EVP_CIPHER_mode
-#define EVP_CIPHER_mode(e)                (((e)->flags) & EVP_CIPH_MODE)
-
-#define DES_cblock                        des_cblock
-#define DES_is_weak_key                   des_is_weak_key
-#define DES_check_key_parity              des_check_key_parity
-#define DES_set_odd_parity                des_set_odd_parity
-
-#define HMAC_CTX_init(ctx)                CLEAR (*ctx)
-#define HMAC_Init_ex(ctx,sec,len,md,impl) HMAC_Init(ctx, sec, len, md) 
-#define HMAC_CTX_cleanup(ctx)             HMAC_cleanup(ctx)
-#define EVP_MD_CTX_cleanup(md)            CLEAR (*md)
-
-#define INFO_CALLBACK_SSL_CONST
-
-#endif
-
-#ifndef INFO_CALLBACK_SSL_CONST
-#define INFO_CALLBACK_SSL_CONST const
-#endif
-
-#if SSLEAY_VERSION_NUMBER < 0x00906000
-
-#undef EVP_CIPHER_mode
-#define EVP_CIPHER_mode(x) 1
-#define EVP_CIPHER_CTX_mode(x) 1
-#define EVP_CIPHER_flags(x) 0
-
-#define EVP_CIPH_CBC_MODE 1
-#define EVP_CIPH_CFB_MODE 0
-#define EVP_CIPH_OFB_MODE 0
-#define EVP_CIPH_VARIABLE_LENGTH 0
-
-#define OPENSSL_malloc(x) malloc(x)
-#define OPENSSL_free(x) free(x)
-
-static inline int
-EVP_CipherInit_ov (EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, uint8_t *key, uint8_t *iv, int enc)
-{
-  EVP_CipherInit (ctx, type, key, iv, enc);
-  return 1;
-}
-
-static inline int
-EVP_CipherUpdate_ov (EVP_CIPHER_CTX *ctx, uint8_t *out, int *outl, uint8_t *in, int inl)
-{
-  EVP_CipherUpdate (ctx, out, outl, in, inl);
-  return 1;
-}
-
-static inline bool
-cipher_ok (const char* name)
-{
-  const int i = strlen (name) - 4;
-  if (i >= 0)
-    return !strcmp (name + i, "-CBC");
-  else
-    return false;
-}
-
-#else
-
-static inline int
-EVP_CipherInit_ov (EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, uint8_t *key, uint8_t *iv, int enc)
-{
-  return EVP_CipherInit (ctx, type, key, iv, enc);
-}
-
-static inline int
-EVP_CipherUpdate_ov (EVP_CIPHER_CTX *ctx, uint8_t *out, int *outl, uint8_t *in, int inl)
-{
-  return EVP_CipherUpdate (ctx, out, outl, in, inl);
-}
-
-static inline bool
-cipher_ok (const char* name)
-{
-  return true;
-}
-
-#endif
-
-#if SSLEAY_VERSION_NUMBER < 0x0090581f
-#undef DES_check_key_parity
-#define DES_check_key_parity(x) 1
-#endif
-
-#ifndef EVP_CIPHER_name
-#define EVP_CIPHER_name(e)		OBJ_nid2sn(EVP_CIPHER_nid(e))
-#endif
-
-#ifndef EVP_MD_name
-#define EVP_MD_name(e)			OBJ_nid2sn(EVP_MD_type(e))
-#endif
-
-/*
- * Max size in bytes of any cipher key that might conceivably be used.
- *
- * This value is checked at compile time in crypto.c to make sure
- * it is always at least EVP_MAX_KEY_LENGTH.
- *
- * We define our own value, since this parameter
- * is used to control the size of static key files.
- * If the OpenSSL library increases EVP_MAX_KEY_LENGTH,
- * we don't want our key files to be suddenly rendered
- * unusable.
- */
-#define MAX_CIPHER_KEY_LENGTH 64
-
-/*
- * Max size in bytes of any HMAC key that might conceivably be used.
- *
- * This value is checked at compile time in crypto.c to make sure
- * it is always at least EVP_MAX_MD_SIZE.  We define our own value
- * for the same reason as above.
- */
-#define MAX_HMAC_KEY_LENGTH 64
-
-/*
- * Defines a key type and key length for both cipher and HMAC.
- */
-struct key_type
-{
-  uint8_t cipher_length;
-  uint8_t hmac_length;
-  const EVP_CIPHER *cipher;
-  const EVP_MD *digest;
-};
-
-/*
- * A random key.
- */
-struct key
-{
-  uint8_t cipher[MAX_CIPHER_KEY_LENGTH];
-  uint8_t hmac[MAX_HMAC_KEY_LENGTH];
-};
-
-#define KEY_DIRECTION_BIDIRECTIONAL 0 /* same keys for both directions */
-#define KEY_DIRECTION_NORMAL        1 /* encrypt with keys[0], decrypt with keys[1] */
-#define KEY_DIRECTION_INVERSE       2 /* encrypt with keys[1], decrypt with keys[0] */
-
-/*
- * Dual random keys (for encrypt/decrypt)
- */
-struct key2
-{
-  int n;
-  struct key keys[2];
-};
-
-/*
- * Used for controlling bidirectional keys
- * vs. a separate key for each direction.
- */
-struct key_direction_state
-{
-  int out_key;
-  int in_key;
-  int need_keys;
-};
-
-/*
- * A key context for cipher and/or HMAC.
- */
-struct key_ctx
-{
-  EVP_CIPHER_CTX *cipher;
-  HMAC_CTX *hmac;
-};
-
-/*
- * Cipher/HMAC key context for both sending and receiving
- * directions.
- */
-struct key_ctx_bi
-{
-  struct key_ctx encrypt;
-  struct key_ctx decrypt;
-};
-
-/*
- * Options for encrypt/decrypt.
- */
-struct crypto_options
-{
-  struct key_ctx_bi *key_ctx_bi;
-  struct packet_id *packet_id;
-  struct packet_id_persist *pid_persist;
-
-# define CO_PACKET_ID_LONG_FORM  (1<<0)
-# define CO_USE_IV               (1<<1)
-# define CO_IGNORE_PACKET_ID     (1<<2)
-# define CO_MUTE_REPLAY_WARNINGS (1<<3)
-  unsigned int flags;
-};
-
-void init_key_type (struct key_type *kt, const char *ciphername,
-		    bool ciphername_defined, const char *authname,
-		    bool authname_defined, int keysize,
-		    bool cfb_ofb_allowed, bool warn);
-
-#define RKF_MUST_SUCCEED (1<<0)
-#define RKF_INLINE       (1<<1)
-void read_key_file (struct key2 *key2, const char *file, const unsigned int flags);
-
-int write_key_file (const int nkeys, const char *filename);
-
-int read_passphrase_hash (const char *passphrase_file,
-			  const EVP_MD *digest,
-			  uint8_t *output,
-			  int len);
-
-void generate_key_random (struct key *key, const struct key_type *kt);
-
-void check_replay_iv_consistency(const struct key_type *kt, bool packet_id, bool use_iv);
-
-bool check_key (struct key *key, const struct key_type *kt);
-
-void fixup_key (struct key *key, const struct key_type *kt);
-
-bool write_key (const struct key *key, const struct key_type *kt,
-		struct buffer *buf);
-
-int read_key (struct key *key, const struct key_type *kt, struct buffer *buf);
-
-bool cfb_ofb_mode (const struct key_type* kt);
-
-const char *kt_cipher_name (const struct key_type *kt);
-const char *kt_digest_name (const struct key_type *kt);
-int kt_key_size (const struct key_type *kt);
-
-/* enc parameter in init_key_ctx */
-#define DO_ENCRYPT 1
-#define DO_DECRYPT 0
-
-void init_key_ctx (struct key_ctx *ctx, struct key *key,
-		   const struct key_type *kt, int enc,
-		   const char *prefix);
-
-void free_key_ctx (struct key_ctx *ctx);
-void free_key_ctx_bi (struct key_ctx_bi *ctx);
-
-void openvpn_encrypt (struct buffer *buf, struct buffer work,
-		      const struct crypto_options *opt,
-		      const struct frame* frame);
-
-bool openvpn_decrypt (struct buffer *buf, struct buffer work,
-		      const struct crypto_options *opt,
-		      const struct frame* frame);
-
-
-void crypto_adjust_frame_parameters(struct frame *frame,
-				    const struct key_type* kt,
-				    bool cipher_defined,
-				    bool use_iv,
-				    bool packet_id,
-				    bool packet_id_long_form);
-
-#define NONCE_SECRET_LEN_MIN 16
-#define NONCE_SECRET_LEN_MAX 64
-void prng_init (const char *md_name, const int nonce_secret_len_parm);
-void prng_bytes (uint8_t *output, int len);
-void prng_uninit ();
-
-void test_crypto (const struct crypto_options *co, struct frame* f);
-
-const char *md5sum(uint8_t *buf, int len, int n_print_chars, struct gc_arena *gc);
-
-void show_available_ciphers (void);
-
-void show_available_digests (void);
-
-void show_available_engines (void);
-
-void init_crypto_lib_engine (const char *engine_name);
-
-void init_crypto_lib (void);
-
-void uninit_crypto_lib (void);
-
-/* key direction functions */
-
-void key_direction_state_init (struct key_direction_state *kds, int key_direction);
-
-void verify_fix_key2 (struct key2 *key2, const struct key_type *kt, const char *shared_secret_file);
-
-void must_have_n_keys (const char *filename, const char *option, const struct key2 *key2, int n);
-
-int ascii2keydirection (int msglevel, const char *str);
-
-const char *keydirection2ascii (int kd, bool remote);
-
-/* print keys */
-void key2_print (const struct key2* k,
-		 const struct key_type *kt,
-		 const char* prefix0,
-		 const char* prefix1);
-
-/* memory debugging */
-void openssl_dmalloc_init (void);
-
-#ifdef USE_SSL
-
-#define GHK_INLINE  (1<<0)
-void get_tls_handshake_key (const struct key_type *key_type,
-			    struct key_ctx_bi *ctx,
-			    const char *passphrase_file,
-			    const int key_direction,
-			    const unsigned int flags);
-
-#else
-
-void init_ssl_lib (void);
-void free_ssl_lib (void);
-
-#endif /* USE_SSL */
-
-/*
- * Inline functions
- */
-
-static inline bool
-key_ctx_bi_defined(const struct key_ctx_bi* key)
-{
-  return key->encrypt.cipher || key->encrypt.hmac || key->decrypt.cipher || key->decrypt.hmac;
-}
-
-/*
- * md5 functions
- */
-
-struct md5_state {
-  MD5_CTX ctx;
-};
-
-struct md5_digest {
-  uint8_t digest [MD5_DIGEST_LENGTH];
-};
-
-void md5_state_init (struct md5_state *s);
-void md5_state_update (struct md5_state *s, void *data, size_t len);
-void md5_state_final (struct md5_state *s, struct md5_digest *out);
-void md5_digest_clear (struct md5_digest *digest);
-bool md5_digest_defined (const struct md5_digest *digest);
-bool md5_digest_equal (const struct md5_digest *d1, const struct md5_digest *d2);
-
-#endif /* USE_CRYPTO */
-#endif /* CRYPTO_H */