freebsd-nq/crypto/heimdal/lib/asn1/check-der.c

292 lines
7.7 KiB
C

/*
* Copyright (c) 1999 - 2002 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <roken.h>
#include <asn1-common.h>
#include <asn1_err.h>
#include <der.h>
RCSID("$Id: check-der.c,v 1.8 2002/08/23 03:17:34 assar Exp $");
static void
print_bytes (unsigned const char *buf, size_t len)
{
int i;
for (i = 0; i < len; ++i)
printf ("%02x ", buf[i]);
}
struct test_case {
void *val;
int byte_len;
const unsigned char *bytes;
char *name;
};
static int
generic_test (const struct test_case *tests,
unsigned ntests,
size_t data_size,
int (*encode)(unsigned char *, size_t, void *, size_t *),
int (*length)(void *),
int (*decode)(unsigned char *, size_t, void *, size_t *),
int (*cmp)(void *a, void *b))
{
unsigned char buf[4711];
int i;
int failures = 0;
void *val = malloc (data_size);
if (data_size != 0 && val == NULL)
err (1, "malloc");
for (i = 0; i < ntests; ++i) {
int ret;
size_t sz, consumed_sz, length_sz;
unsigned char *beg;
ret = (*encode) (buf + sizeof(buf) - 1, sizeof(buf),
tests[i].val, &sz);
beg = buf + sizeof(buf) - sz;
if (ret != 0) {
printf ("encoding of %s failed\n", tests[i].name);
++failures;
}
if (sz != tests[i].byte_len) {
printf ("encoding of %s has wrong len (%lu != %lu)\n",
tests[i].name,
(unsigned long)sz, (unsigned long)tests[i].byte_len);
++failures;
}
length_sz = (*length) (tests[i].val);
if (sz != length_sz) {
printf ("length for %s is bad (%lu != %lu)\n",
tests[i].name, (unsigned long)length_sz, (unsigned long)sz);
++failures;
}
if (memcmp (beg, tests[i].bytes, tests[i].byte_len) != 0) {
printf ("encoding of %s has bad bytes:\n"
"correct: ", tests[i].name);
print_bytes (tests[i].bytes, tests[i].byte_len);
printf ("\nactual: ");
print_bytes (beg, sz);
printf ("\n");
++failures;
}
ret = (*decode) (beg, sz, val, &consumed_sz);
if (ret != 0) {
printf ("decoding of %s failed\n", tests[i].name);
++failures;
}
if (sz != consumed_sz) {
printf ("different length decoding %s (%ld != %ld)\n",
tests[i].name,
(unsigned long)sz, (unsigned long)consumed_sz);
++failures;
}
if ((*cmp)(val, tests[i].val) != 0) {
printf ("%s: comparison failed\n", tests[i].name);
++failures;
}
}
free (val);
return failures;
}
static int
cmp_integer (void *a, void *b)
{
int *ia = (int *)a;
int *ib = (int *)b;
return *ib - *ia;
}
static int
test_integer (void)
{
struct test_case tests[] = {
{NULL, 3, "\x02\x01\x00"},
{NULL, 3, "\x02\x01\x7f"},
{NULL, 4, "\x02\x02\x00\x80"},
{NULL, 4, "\x02\x02\x01\x00"},
{NULL, 3, "\x02\x01\x80"},
{NULL, 4, "\x02\x02\xff\x7f"},
{NULL, 3, "\x02\x01\xff"},
{NULL, 4, "\x02\x02\xff\x01"},
{NULL, 4, "\x02\x02\x00\xff"},
{NULL, 6, "\x02\x04\x80\x00\x00\x00"},
{NULL, 6, "\x02\x04\x7f\xff\xff\xff"}
};
int values[] = {0, 127, 128, 256, -128, -129, -1, -255, 255,
0x80000000, 0x7fffffff};
int i;
int ntests = sizeof(tests) / sizeof(*tests);
for (i = 0; i < ntests; ++i) {
tests[i].val = &values[i];
asprintf (&tests[i].name, "integer %d", values[i]);
}
return generic_test (tests, ntests, sizeof(int),
(int (*)(unsigned char *, size_t,
void *, size_t *))encode_integer,
(int (*)(void *))length_integer,
(int (*)(unsigned char *, size_t,
void *, size_t *))decode_integer,
cmp_integer);
}
static int
cmp_octet_string (void *a, void *b)
{
octet_string *oa = (octet_string *)a;
octet_string *ob = (octet_string *)b;
if (oa->length != ob->length)
return ob->length - oa->length;
return (memcmp (oa->data, ob->data, oa->length));
}
static int
test_octet_string (void)
{
octet_string s1 = {8, "\x01\x23\x45\x67\x89\xab\xcd\xef"};
struct test_case tests[] = {
{NULL, 10, "\x04\x08\x01\x23\x45\x67\x89\xab\xcd\xef"}
};
int ntests = sizeof(tests) / sizeof(*tests);
tests[0].val = &s1;
asprintf (&tests[0].name, "a octet string");
return generic_test (tests, ntests, sizeof(octet_string),
(int (*)(unsigned char *, size_t,
void *, size_t *))encode_octet_string,
(int (*)(void *))length_octet_string,
(int (*)(unsigned char *, size_t,
void *, size_t *))decode_octet_string,
cmp_octet_string);
}
static int
cmp_general_string (void *a, void *b)
{
unsigned char **sa = (unsigned char **)a;
unsigned char **sb = (unsigned char **)b;
return strcmp (*sa, *sb);
}
static int
test_general_string (void)
{
unsigned char *s1 = "Test User 1";
struct test_case tests[] = {
{NULL, 13, "\x1b\x0b\x54\x65\x73\x74\x20\x55\x73\x65\x72\x20\x31"}
};
int ntests = sizeof(tests) / sizeof(*tests);
tests[0].val = &s1;
asprintf (&tests[0].name, "the string \"%s\"", s1);
return generic_test (tests, ntests, sizeof(unsigned char *),
(int (*)(unsigned char *, size_t,
void *, size_t *))encode_general_string,
(int (*)(void *))length_general_string,
(int (*)(unsigned char *, size_t,
void *, size_t *))decode_general_string,
cmp_general_string);
}
static int
cmp_generalized_time (void *a, void *b)
{
time_t *ta = (time_t *)a;
time_t *tb = (time_t *)b;
return *tb - *ta;
}
static int
test_generalized_time (void)
{
struct test_case tests[] = {
{NULL, 17, "\x18\x0f""19700101000000Z"},
{NULL, 17, "\x18\x0f""19851106210627Z"}
};
time_t values[] = {0, 500159187};
int i;
int ntests = sizeof(tests) / sizeof(*tests);
for (i = 0; i < ntests; ++i) {
tests[i].val = &values[i];
asprintf (&tests[i].name, "time %d", (int)values[i]);
}
return generic_test (tests, ntests, sizeof(time_t),
(int (*)(unsigned char *, size_t,
void *, size_t *))encode_generalized_time,
(int (*)(void *))length_generalized_time,
(int (*)(unsigned char *, size_t,
void *, size_t *))decode_generalized_time,
cmp_generalized_time);
}
int
main(int argc, char **argv)
{
int ret = 0;
ret += test_integer ();
ret += test_octet_string ();
ret += test_general_string ();
ret += test_generalized_time ();
return ret;
}