libssh 0.4.8

include/libssh/wrapper.h

00001 /*
00002  * This file is part of the SSH Library
00003  *
00004  * Copyright (c) 2009 by Aris Adamantiadis
00005  *
00006  * The SSH Library is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU Lesser General Public License as published by
00008  * the Free Software Foundation; either version 2.1 of the License, or (at your
00009  * option) any later version.
00010  *
00011  * The SSH Library is distributed in the hope that it will be useful, but
00012  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00013  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00014  * License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with the SSH Library; see the file COPYING.  If not, write to
00018  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00019  * MA 02111-1307, USA.
00020  */
00021 
00022 #ifndef WRAPPER_H_
00023 #define WRAPPER_H_
00024 
00025 #include "config.h"
00026 
00027 #ifdef MD5_DIGEST_LEN
00028     #undef MD5_DIGEST_LEN
00029 #endif
00030 /* wrapper things */
00031 #ifdef HAVE_LIBGCRYPT
00032 #include <gcrypt.h>
00033 typedef gcry_md_hd_t SHACTX;
00034 typedef gcry_md_hd_t MD5CTX;
00035 typedef gcry_md_hd_t HMACCTX;
00036 #define SHA_DIGEST_LEN 20
00037 #define MD5_DIGEST_LEN 16
00038 #define EVP_MAX_MD_SIZE 36
00039 
00040 typedef gcry_mpi_t bignum;
00041 
00042 #define bignum_new() gcry_mpi_new(0)
00043 #define bignum_free(num) gcry_mpi_release(num)
00044 #define bignum_set_word(bn,n) gcry_mpi_set_ui(bn,n)
00045 #define bignum_bin2bn(bn,datalen,data) gcry_mpi_scan(data,GCRYMPI_FMT_USG,bn,datalen,NULL)
00046 #define bignum_bn2dec(num) my_gcry_bn2dec(num)
00047 #define bignum_dec2bn(num, data) my_gcry_dec2bn(data, num)
00048 #define bignum_bn2hex(num,data) gcry_mpi_aprint(GCRYMPI_FMT_HEX,data,NULL,num)
00049 #define bignum_hex2bn(num,datalen,data) gcry_mpi_scan(num,GCRYMPI_FMT_HEX,data,datalen,NULL)
00050 #define bignum_rand(num,bits) gcry_mpi_randomize(num,bits,GCRY_STRONG_RANDOM),gcry_mpi_set_bit(num,bits-1),gcry_mpi_set_bit(num,0)
00051 #define bignum_mod_exp(dest,generator,exp,modulo) gcry_mpi_powm(dest,generator,exp,modulo)
00052 #define bignum_num_bits(num) gcry_mpi_get_nbits(num)
00053 #define bignum_num_bytes(num) ((gcry_mpi_get_nbits(num)+7)/8)
00054 #define bignum_is_bit_set(num,bit) gcry_mpi_test_bit(num,bit)
00055 #define bignum_bn2bin(num,datalen,data) gcry_mpi_print(GCRYMPI_FMT_USG,data,datalen,NULL,num)
00056 #define bignum_cmp(num1,num2) gcry_mpi_cmp(num1,num2)
00057 
00058 #elif defined HAVE_LIBCRYPTO
00059 
00060 #include <openssl/dsa.h>
00061 #include <openssl/rsa.h>
00062 #include <openssl/sha.h>
00063 #include <openssl/md5.h>
00064 #include <openssl/hmac.h>
00065 typedef SHA_CTX* SHACTX;
00066 typedef MD5_CTX*  MD5CTX;
00067 typedef HMAC_CTX* HMACCTX;
00068 
00069 #define SHA_DIGEST_LEN SHA_DIGEST_LENGTH
00070 #define MD5_DIGEST_LEN MD5_DIGEST_LENGTH
00071 
00072 #include <openssl/bn.h>
00073 #include <openssl/opensslv.h>
00074 #define OPENSSL_0_9_7b 0x0090702fL
00075 #if (OPENSSL_VERSION_NUMBER <= OPENSSL_0_9_7b)
00076 #define BROKEN_AES_CTR
00077 #endif
00078 typedef BIGNUM*  bignum;
00079 typedef BN_CTX* bignum_CTX;
00080 
00081 #define bignum_new() BN_new()
00082 #define bignum_free(num) BN_clear_free(num)
00083 #define bignum_set_word(bn,n) BN_set_word(bn,n)
00084 #define bignum_bin2bn(bn,datalen,data) BN_bin2bn(bn,datalen,data)
00085 #define bignum_bn2dec(num) BN_bn2dec(num)
00086 #define bignum_dec2bn(bn,data) BN_dec2bn(data,bn)
00087 #define bignum_bn2hex(num) BN_bn2hex(num)
00088 #define bignum_rand(rnd, bits, top, bottom) BN_rand(rnd,bits,top,bottom)
00089 #define bignum_ctx_new() BN_CTX_new()
00090 #define bignum_ctx_free(num) BN_CTX_free(num)
00091 #define bignum_mod_exp(dest,generator,exp,modulo,ctx) BN_mod_exp(dest,generator,exp,modulo,ctx)
00092 #define bignum_num_bytes(num) BN_num_bytes(num)
00093 #define bignum_num_bits(num) BN_num_bits(num)
00094 #define bignum_is_bit_set(num,bit) BN_is_bit_set(num,bit)
00095 #define bignum_bn2bin(num,ptr) BN_bn2bin(num,ptr)
00096 #define bignum_cmp(num1,num2) BN_cmp(num1,num2)
00097 
00098 #endif /* OPENSSL_CRYPTO */
00099 
00100 MD5CTX md5_init(void);
00101 void md5_update(MD5CTX c, const void *data, unsigned long len);
00102 void md5_final(unsigned char *md,MD5CTX c);
00103 SHACTX sha1_init(void);
00104 void sha1_update(SHACTX c, const void *data, unsigned long len);
00105 void sha1_final(unsigned char *md,SHACTX c);
00106 void sha1(unsigned char *digest,int len,unsigned char *hash);
00107 #define HMAC_SHA1 1
00108 #define HMAC_MD5 2
00109 HMACCTX hmac_init(const void *key,int len,int type);
00110 void hmac_update(HMACCTX c, const void *data, unsigned long len);
00111 void hmac_final(HMACCTX ctx,unsigned char *hashmacbuf,unsigned int *len);
00112 
00113 int crypt_set_algorithms(ssh_session );
00114 int crypt_set_algorithms_server(ssh_session session);
00115 struct ssh_crypto_struct *crypto_new(void);
00116 void crypto_free(struct ssh_crypto_struct *crypto);
00117 
00118 
00119 #endif /* WRAPPER_H_ */