85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/* $Id: openssl-compat.c,v 1.19 2014/07/02 05:28:07 djm 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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#define SSH_DONT_OVERLOAD_OPENSSL_FUNCS
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#include "includes.h"
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#ifdef WITH_OPENSSL
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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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#include "log.h"
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#include "openssl-compat.h"
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/*
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* OpenSSL version numbers: MNNFFPPS: major minor fix patch status
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* We match major, minor, fix and status (not patch) for <1.0.0.
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* After that, we acceptable compatible fix versions (so we
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* allow 1.0.1 to work with 1.0.0). Going backwards is only allowed
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* within a patch series.
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*/
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int
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ssh_compatible_openssl(long headerver, long libver)
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{
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long mask, hfix, lfix;
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/* exact match is always OK */
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if (headerver == libver)
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return 1;
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/* for versions < 1.0.0, major,minor,fix,status must match */
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if (headerver < 0x1000000f) {
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mask = 0xfffff00fL; /* major,minor,fix,status */
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return (headerver & mask) == (libver & mask);
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}
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/*
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* For versions >= 1.0.0, major,minor,status must match and library
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* fix version must be equal to or newer than the header.
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*/
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mask = 0xfff0000fL; /* major,minor,status */
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hfix = (headerver & 0x000ff000) >> 12;
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lfix = (libver & 0x000ff000) >> 12;
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if ( (headerver & mask) == (libver & mask) && lfix >= hfix)
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return 1;
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return 0;
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}
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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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#endif /* WITH_OPENSSL */
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