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/*
* QEMU UUID Library
*
* Copyright (c) 2016 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "qemu/osdep.h"
#include "qemu/uuid.h"
struct {
const char *uuidstr;
QemuUUID uuid;
bool uuidstr_is_valid;
bool check_unparse;
} uuid_test_data[] = {
{ /* Normal */
"586ece27-7f09-41e0-9e74-e901317e9d42",
{ { {
0x58, 0x6e, 0xce, 0x27, 0x7f, 0x09, 0x41, 0xe0,
0x9e, 0x74, 0xe9, 0x01, 0x31, 0x7e, 0x9d, 0x42,
} } },
true, true,
}, { /* NULL */
"00000000-0000-0000-0000-000000000000",
{ },
true, true,
}, { /* Upper case */
"0CC6C752-3961-4028-A286-C05CC616D396",
{ { {
0x0c, 0xc6, 0xc7, 0x52, 0x39, 0x61, 0x40, 0x28,
0xa2, 0x86, 0xc0, 0x5c, 0xc6, 0x16, 0xd3, 0x96,
} } },
true, false,
}, { /* Mixed case */
"0CC6C752-3961-4028-a286-c05cc616D396",
{ { {
0x0c, 0xc6, 0xc7, 0x52, 0x39, 0x61, 0x40, 0x28,
0xa2, 0x86, 0xc0, 0x5c, 0xc6, 0x16, 0xd3, 0x96,
} } },
true, false,
}, { /* Empty */
""
}, { /* Too short */
"abc",
}, { /* Non-hex */
"abcdefgh-0000-0000-0000-000000000000",
}, { /* No '-' */
"0cc6c75239614028a286c05cc616d396",
}, { /* '-' in wrong position */
"0cc6c-7523961-4028-a286-c05cc616d396",
}, { /* Double '-' */
"0cc6c752--3961-4028-a286-c05cc616d396",
}, { /* Too long */
"0000000000000000000000000000000000000000000000",
}, { /* Invalid char in the beginning */
")cc6c752-3961-4028-a286-c05cc616d396",
}, { /* Invalid char in the beginning, in extra */
")0cc6c752-3961-4028-a286-c05cc616d396",
}, { /* Invalid char in the middle */
"0cc6c752-39*1-4028-a286-c05cc616d396",
}, { /* Invalid char in the middle, in extra */
"0cc6c752-39*61-4028-a286-c05cc616d396",
}, { /* Invalid char in the end */
"0cc6c752-3961-4028-a286-c05cc616d39&",
}, { /* Invalid char in the end, in extra */
"0cc6c752-3961-4028-a286-c05cc616d396&",
}, { /* Short end and trailing space */
"0cc6c752-3961-4028-a286-c05cc616d39 ",
}, { /* Leading space and short end */
" 0cc6c752-3961-4028-a286-c05cc616d39",
},
};
static inline bool uuid_is_valid(QemuUUID *uuid)
{
return qemu_uuid_is_null(uuid) ||
((uuid->data[6] & 0xf0) == 0x40 && (uuid->data[8] & 0xc0) == 0x80);
}
static void test_uuid_generate(void)
{
QemuUUID uuid_not_null = { { {
0x58, 0x6e, 0xce, 0x27, 0x7f, 0x09, 0x41, 0xe0,
0x9e, 0x74, 0xe9, 0x01, 0x31, 0x7e, 0x9d, 0x42
} } };
QemuUUID uuid;
int i;
for (i = 0; i < 100; ++i) {
qemu_uuid_generate(&uuid);
g_assert(uuid_is_valid(&uuid));
g_assert_false(qemu_uuid_is_null(&uuid));
g_assert_false(qemu_uuid_is_equal(&uuid_not_null, &uuid));
}
}
static void test_uuid_is_null(void)
{
QemuUUID uuid_null = { };
QemuUUID uuid_not_null = { { {
0x58, 0x6e, 0xce, 0x27, 0x7f, 0x09, 0x41, 0xe0,
0x9e, 0x74, 0xe9, 0x01, 0x31, 0x7e, 0x9d, 0x42
} } };
QemuUUID uuid_not_null_2 = { { { 1 } } };
g_assert(qemu_uuid_is_null(&uuid_null));
g_assert_false(qemu_uuid_is_null(&uuid_not_null));
g_assert_false(qemu_uuid_is_null(&uuid_not_null_2));
}
static void test_uuid_parse(void)
{
int i, r;
for (i = 0; i < ARRAY_SIZE(uuid_test_data); i++) {
QemuUUID uuid;
bool is_valid = uuid_test_data[i].uuidstr_is_valid;
r = qemu_uuid_parse(uuid_test_data[i].uuidstr, &uuid);
g_assert_cmpint(!r, ==, is_valid);
if (is_valid) {
g_assert_cmpint(is_valid, ==, uuid_is_valid(&uuid));
g_assert_cmpmem(&uuid_test_data[i].uuid, sizeof(uuid),
&uuid, sizeof(uuid));
}
}
}
static void test_uuid_unparse(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(uuid_test_data); i++) {
char out[37];
if (!uuid_test_data[i].check_unparse) {
continue;
}
qemu_uuid_unparse(&uuid_test_data[i].uuid, out);
g_assert_cmpstr(uuid_test_data[i].uuidstr, ==, out);
}
}
static void test_uuid_unparse_strdup(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(uuid_test_data); i++) {
char *out;
if (!uuid_test_data[i].check_unparse) {
continue;
}
out = qemu_uuid_unparse_strdup(&uuid_test_data[i].uuid);
g_assert_cmpstr(uuid_test_data[i].uuidstr, ==, out);
g_free(out);
}
}
static void test_uuid_hash(void)
{
QemuUUID uuid;
int i;
for (i = 0; i < 100; i++) {
qemu_uuid_generate(&uuid);
/* Obtain the UUID hash */
uint32_t hash_a = qemu_uuid_hash(&uuid);
int data_idx = g_random_int_range(0, 15);
/* Change a single random byte of the UUID */
if (uuid.data[data_idx] < 0xFF) {
uuid.data[data_idx]++;
} else {
uuid.data[data_idx]--;
}
/* Obtain the UUID hash again */
uint32_t hash_b = qemu_uuid_hash(&uuid);
/*
* Both hashes shall be different (avoid collision)
* for any change in the UUID fields
*/
g_assert_cmpint(hash_a, !=, hash_b);
}
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/uuid/is_null", test_uuid_is_null);
g_test_add_func("/uuid/generate", test_uuid_generate);
g_test_add_func("/uuid/parse", test_uuid_parse);
g_test_add_func("/uuid/unparse", test_uuid_unparse);
g_test_add_func("/uuid/unparse_strdup", test_uuid_unparse_strdup);
g_test_add_func("/uuid/hash", test_uuid_hash);
return g_test_run();
}
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