d4af9e693f
I have worked hard to reduce diffs against the vendor branch. One notable change in that respect is that we no longer prefer DSA over RSA - the reasons for doing so went away years ago. This may cause some surprises, as ssh will warn about unknown host keys even for hosts whose keys haven't changed. MFC after: 6 weeks
96 lines
3.3 KiB
C
96 lines
3.3 KiB
C
/* $Id: openssl-compat.h,v 1.12 2008/02/28 08:22:04 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 <openssl/evp.h>
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/* OPENSSL_free() is Free() in versions before OpenSSL 0.9.6 */
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#if !defined(OPENSSL_VERSION_NUMBER) || (OPENSSL_VERSION_NUMBER < 0x0090600f)
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# define OPENSSL_free(x) Free(x)
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#endif
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#if OPENSSL_VERSION_NUMBER < 0x00906000L
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# define SSH_OLD_EVP
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# define EVP_CIPHER_CTX_get_app_data(e) ((e)->app_data)
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#endif
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#if (OPENSSL_VERSION_NUMBER < 0x00907000L) || defined(OPENSSL_LOBOTOMISED_AES)
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# define USE_BUILTIN_RIJNDAEL
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#endif
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#ifdef USE_BUILTIN_RIJNDAEL
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# include "rijndael.h"
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# define AES_KEY rijndael_ctx
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# define AES_BLOCK_SIZE 16
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# define AES_encrypt(a, b, c) rijndael_encrypt(c, a, b)
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# define AES_set_encrypt_key(a, b, c) rijndael_set_key(c, (char *)a, b, 1)
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# define EVP_aes_128_cbc evp_rijndael
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# define EVP_aes_192_cbc evp_rijndael
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# define EVP_aes_256_cbc evp_rijndael
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extern const EVP_CIPHER *evp_rijndael(void);
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extern void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int);
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#endif
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#if !defined(EVP_CTRL_SET_ACSS_MODE)
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# if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
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# define USE_CIPHER_ACSS 1
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extern const EVP_CIPHER *evp_acss(void);
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# define EVP_acss evp_acss
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# else
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# define EVP_acss NULL
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# endif
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#endif
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/* OpenSSL 0.9.8e returns cipher key len not context key len */
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#if (OPENSSL_VERSION_NUMBER == 0x0090805fL)
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# define EVP_CIPHER_CTX_key_length(c) ((c)->key_len)
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#endif
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/*
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* We overload some of the OpenSSL crypto functions with ssh_* equivalents
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* which cater for older and/or less featureful OpenSSL version.
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*
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* In order for the compat library to call the real functions, it must
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* define SSH_DONT_OVERLOAD_OPENSSL_FUNCS before including this file and
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* implement the ssh_* equivalents.
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*/
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#ifndef SSH_DONT_OVERLOAD_OPENSSL_FUNCS
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# ifdef SSH_OLD_EVP
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# ifdef EVP_Cipher
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# undef EVP_Cipher
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# endif
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# define EVP_CipherInit(a,b,c,d,e) ssh_EVP_CipherInit((a),(b),(c),(d),(e))
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# define EVP_Cipher(a,b,c,d) ssh_EVP_Cipher((a),(b),(c),(d))
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# define EVP_CIPHER_CTX_cleanup(a) ssh_EVP_CIPHER_CTX_cleanup((a))
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# endif /* SSH_OLD_EVP */
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# ifdef USE_OPENSSL_ENGINE
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# ifdef SSLeay_add_all_algorithms
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# undef SSLeay_add_all_algorithms
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# endif
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# define SSLeay_add_all_algorithms() ssh_SSLeay_add_all_algorithms()
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# endif
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int ssh_EVP_CipherInit(EVP_CIPHER_CTX *, const EVP_CIPHER *, unsigned char *,
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unsigned char *, int);
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int ssh_EVP_Cipher(EVP_CIPHER_CTX *, char *, char *, int);
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int ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *);
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void ssh_SSLeay_add_all_algorithms(void);
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#endif /* SSH_DONT_OVERLOAD_OPENSSL_FUNCS */
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