2 * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #define SSH_DONT_OVERLOAD_OPENSSL_FUNCS
25 #ifdef USE_OPENSSL_ENGINE
26 # include <openssl/engine.h>
27 # include <openssl/conf.h>
32 #include "openssl-compat.h"
35 * OpenSSL version numbers: MNNFFPPS: major minor fix patch status
36 * Versions >=3 require only major versions to match.
37 * For versions <3, we accept compatible fix versions (so we allow 1.0.1
38 * to work with 1.0.0). Going backwards is only allowed within a patch series.
39 * See https://www.openssl.org/policies/releasestrat.html
43 ssh_compatible_openssl(long headerver, long libver)
45 long mask, hfix, lfix;
47 /* exact match is always OK */
48 if (headerver == libver)
52 * For versions >= 3.0, only the major and status must match.
54 if (headerver >= 0x3000000f) {
55 mask = 0xf000000fL; /* major,status */
56 return (headerver & mask) == (libver & mask);
60 * For versions >= 1.0.0, but <3, major,minor,status must match and
61 * library fix version must be equal to or newer than the header.
63 mask = 0xfff0000fL; /* major,minor,status */
64 hfix = (headerver & 0x000ff000) >> 12;
65 lfix = (libver & 0x000ff000) >> 12;
66 if ( (headerver & mask) == (libver & mask) && lfix >= hfix)
72 ssh_libcrypto_init(void)
74 #if defined(HAVE_OPENSSL_INIT_CRYPTO) && \
75 defined(OPENSSL_INIT_ADD_ALL_CIPHERS) && \
76 defined(OPENSSL_INIT_ADD_ALL_DIGESTS)
77 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
78 OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
79 #elif defined(HAVE_OPENSSL_ADD_ALL_ALGORITHMS)
80 OpenSSL_add_all_algorithms();
83 #ifdef USE_OPENSSL_ENGINE
84 /* Enable use of crypto hardware */
85 ENGINE_load_builtin_engines();
86 ENGINE_register_all_complete();
88 /* Load the libcrypto config file to pick up engines defined there */
89 # if defined(HAVE_OPENSSL_INIT_CRYPTO) && defined(OPENSSL_INIT_LOAD_CONFIG)
90 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
91 OPENSSL_INIT_ADD_ALL_DIGESTS | OPENSSL_INIT_LOAD_CONFIG, NULL);
95 #endif /* USE_OPENSSL_ENGINE */
98 #endif /* WITH_OPENSSL */