147 lines
3.4 KiB
C
147 lines
3.4 KiB
C
/* $Id: openssl-compat.c,v 1.14 2011/05/10 01:13:38 dtucker Exp $ */
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/*
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* Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#include <stdarg.h>
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#include <string.h>
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#ifdef USE_OPENSSL_ENGINE
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# include <openssl/engine.h>
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# include <openssl/conf.h>
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#endif
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#ifndef HAVE_RSA_GET_DEFAULT_METHOD
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# include <openssl/rsa.h>
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#endif
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#include "log.h"
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#define SSH_DONT_OVERLOAD_OPENSSL_FUNCS
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#include "openssl-compat.h"
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#ifdef SSH_OLD_EVP
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int
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ssh_EVP_CipherInit(EVP_CIPHER_CTX *evp, const EVP_CIPHER *type,
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unsigned char *key, unsigned char *iv, int enc)
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{
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EVP_CipherInit(evp, type, key, iv, enc);
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return 1;
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}
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int
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ssh_EVP_Cipher(EVP_CIPHER_CTX *evp, char *dst, char *src, int len)
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{
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EVP_Cipher(evp, dst, src, len);
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return 1;
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}
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int
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ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *evp)
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{
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EVP_CIPHER_CTX_cleanup(evp);
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return 1;
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}
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#endif
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#ifdef OPENSSL_EVP_DIGESTUPDATE_VOID
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int
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ssh_EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt)
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{
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EVP_DigestUpdate(ctx, d, cnt);
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return 1;
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}
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#endif
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#ifndef HAVE_BN_IS_PRIME_EX
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int
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BN_is_prime_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx, void *cb)
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{
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if (cb != NULL)
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fatal("%s: callback args not supported", __func__);
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return BN_is_prime(p, nchecks, NULL, ctx, NULL);
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}
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#endif
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#ifndef HAVE_RSA_GENERATE_KEY_EX
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int
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RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *bn_e, void *cb)
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{
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RSA *new_rsa, tmp_rsa;
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unsigned long e;
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if (cb != NULL)
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fatal("%s: callback args not supported", __func__);
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e = BN_get_word(bn_e);
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if (e == 0xffffffffL)
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fatal("%s: value of e too large", __func__);
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new_rsa = RSA_generate_key(bits, e, NULL, NULL);
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if (new_rsa == NULL)
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return 0;
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/* swap rsa/new_rsa then free new_rsa */
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tmp_rsa = *rsa;
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*rsa = *new_rsa;
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*new_rsa = tmp_rsa;
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RSA_free(new_rsa);
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return 1;
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}
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#endif
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#ifndef HAVE_DSA_GENERATE_PARAMETERS_EX
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int
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DSA_generate_parameters_ex(DSA *dsa, int bits, const unsigned char *seed,
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int seed_len, int *counter_ret, unsigned long *h_ret, void *cb)
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{
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DSA *new_dsa, tmp_dsa;
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if (cb != NULL)
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fatal("%s: callback args not supported", __func__);
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new_dsa = DSA_generate_parameters(bits, (unsigned char *)seed, seed_len,
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counter_ret, h_ret, NULL, NULL);
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if (new_dsa == NULL)
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return 0;
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/* swap dsa/new_dsa then free new_dsa */
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tmp_dsa = *dsa;
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*dsa = *new_dsa;
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*new_dsa = tmp_dsa;
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DSA_free(new_dsa);
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return 1;
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}
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#endif
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#ifndef HAVE_RSA_GET_DEFAULT_METHOD
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RSA_METHOD *
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RSA_get_default_method(void)
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{
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return RSA_PKCS1_SSLeay();
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}
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#endif
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#ifdef USE_OPENSSL_ENGINE
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void
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ssh_OpenSSL_add_all_algorithms(void)
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{
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OpenSSL_add_all_algorithms();
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/* Enable use of crypto hardware */
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ENGINE_load_builtin_engines();
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ENGINE_register_all_complete();
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OPENSSL_config(NULL);
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}
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#endif
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