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/* $OpenBSD: ssl_versions.c,v 1.1 2016/12/30 16:58:12 jsing Exp $ */
/*
* Copyright (c) 2016 Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <openssl/ssl.h>
int ssl_enabled_version_range(SSL *s, uint16_t *min_ver, uint16_t *max_ver);
struct version_range_test {
const long options;
const uint16_t minver;
const uint16_t maxver;
};
static struct version_range_test version_range_tests[] = {
{
.options = 0,
.minver = TLS1_VERSION,
.maxver = TLS1_2_VERSION,
},
{
.options = SSL_OP_NO_TLSv1,
.minver = TLS1_1_VERSION,
.maxver = TLS1_2_VERSION,
},
{
.options = SSL_OP_NO_TLSv1_2,
.minver = TLS1_VERSION,
.maxver = TLS1_1_VERSION,
},
{
.options = SSL_OP_NO_TLSv1_1,
.minver = TLS1_VERSION,
.maxver = TLS1_VERSION,
},
{
.options = SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1,
.minver = TLS1_2_VERSION,
.maxver = TLS1_2_VERSION,
},
{
.options = SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2,
.minver = TLS1_VERSION,
.maxver = TLS1_VERSION,
},
{
.options = SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_2,
.minver = TLS1_1_VERSION,
.maxver = TLS1_1_VERSION,
},
{
.options = SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2,
.minver = 0,
.maxver = 0,
},
};
#define N_VERSION_RANGE_TESTS \
(sizeof(version_range_tests) / sizeof(*version_range_tests))
static int
test_ssl_enabled_version_range(void)
{
struct version_range_test *vrt;
uint16_t minver, maxver;
SSL_CTX *ssl_ctx = NULL;
SSL *ssl = NULL;
int failed = 1;
size_t i;
if ((ssl_ctx = SSL_CTX_new(TLS_method())) == NULL) {
fprintf(stderr, "SSL_CTX_new() returned NULL\n");
goto failure;
}
if ((ssl = SSL_new(ssl_ctx)) == NULL) {
fprintf(stderr, "SSL_new() returned NULL\n");
goto failure;
}
failed = 0;
for (i = 0; i < N_VERSION_RANGE_TESTS; i++) {
vrt = &version_range_tests[i];
SSL_clear_options(ssl, SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 |
SSL_OP_NO_TLSv1_2);
SSL_set_options(ssl, vrt->options);
minver = maxver = 0xffff;
if (ssl_enabled_version_range(ssl, &minver, &maxver) == -1) {
if (vrt->minver != 0 || vrt->maxver != 0) {
fprintf(stderr, "FAIL: test %zu - failed but "
"wanted non-zero versions\n", i);
failed++;
}
continue;
}
if (minver != vrt->minver) {
fprintf(stderr, "FAIL: test %zu - got minver %x, "
"want %x\n", i, minver, vrt->minver);
failed++;
}
if (maxver != vrt->maxver) {
fprintf(stderr, "FAIL: test %zu - got maxver %x, "
"want %x\n", i, maxver, vrt->maxver);
failed++;
}
}
failure:
SSL_CTX_free(ssl_ctx);
SSL_free(ssl);
return (failed);
}
int
main(int argc, char **argv)
{
int failed = 0;
SSL_library_init();
failed |= test_ssl_enabled_version_range();
if (failed == 0)
printf("PASS %s\n", __FILE__);
return (failed);
}
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