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/*
* Tests for librpc ndr functions
*
* Copyright (C) Catalyst.NET Ltd 2020
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "replace.h"
#include <setjmp.h>
#include <cmocka.h>
#include "includes.h"
#include "librpc/ndr/libndr.h"
#include "librpc/gen_ndr/ndr_dns.h"
#include "librpc/gen_ndr/ndr_nbt.h"
#include "lib/util/time.h"
#define NBT_NAME "EOGFGLGPCACACACACACACACACACACACA" /* "neko" */
static DATA_BLOB generate_obnoxious_dns_name(TALLOC_CTX *mem_ctx,
size_t n_labels,
size_t dot_every,
bool is_nbt)
{
size_t i, j;
char *s;
DATA_BLOB name = data_blob_talloc(mem_ctx, NULL, 64 * n_labels + 1);
assert_non_null(name.data);
s = (char*)name.data;
if (is_nbt) {
size_t len = strlen(NBT_NAME);
*s = len;
s++;
memcpy(s, NBT_NAME, len);
s += len;
n_labels--;
}
for (i = 0; i < n_labels; i++) {
*s = 63;
s++;
for (j = 0; j < 63; j++) {
if (j % dot_every == (dot_every - 1)) {
*s = '.';
} else {
*s = 'x';
}
s++;
}
}
*s = 0;
s++;
name.length = s - (char*)name.data;
return name;
}
static char *_test_ndr_pull_dns_string_list(TALLOC_CTX *mem_ctx,
size_t n_labels,
size_t dot_every,
bool is_nbt)
{
enum ndr_err_code ndr_err;
DATA_BLOB blob = generate_obnoxious_dns_name(mem_ctx,
n_labels,
dot_every,
is_nbt);
char *name;
ndr_pull_flags_fn_t fn;
if (is_nbt) {
fn = (ndr_pull_flags_fn_t)ndr_pull_nbt_string;
} else {
fn = (ndr_pull_flags_fn_t)ndr_pull_dns_string;
}
ndr_err = ndr_pull_struct_blob(&blob,
mem_ctx,
&name,
fn);
/* Success here is not expected, but we let it go to measure timing. */
if (ndr_err == NDR_ERR_SUCCESS) {
printf("pull succeed\n");
} else {
assert_int_equal(ndr_err, NDR_ERR_STRING);
}
TALLOC_FREE(blob.data);
return name;
}
static void _test_ndr_push_dns_string_list(TALLOC_CTX *mem_ctx,
char *name,
bool is_nbt)
{
DATA_BLOB blob;
enum ndr_err_code ndr_err;
ndr_push_flags_fn_t fn;
if (is_nbt) {
fn = (ndr_push_flags_fn_t)ndr_push_nbt_string;
} else {
fn = (ndr_push_flags_fn_t)ndr_push_dns_string;
}
ndr_err = ndr_push_struct_blob(&blob,
mem_ctx,
name,
fn);
/* Success here is not expected, but we let it go to measure timing. */
if (ndr_err == NDR_ERR_SUCCESS) {
printf("push succeed\n");
} else {
assert_int_equal(ndr_err, NDR_ERR_STRING);
}
}
static uint64_t elapsed_time(struct timespec start, const char *print)
{
struct timespec end;
unsigned long long microsecs;
clock_gettime_mono(&end);
end.tv_sec -= start.tv_sec;
if (end.tv_nsec < start.tv_nsec) {
/* we need to borrow */
end.tv_nsec += 1000 * 1000 * 1000;
end.tv_sec -= 1;
}
end.tv_nsec -= start.tv_nsec;
microsecs = end.tv_sec * 1000000;
microsecs += end.tv_nsec / 1000;
if (print != NULL) {
printf(" %s: %llu microseconds\n", print, microsecs);
}
return microsecs;
}
static void test_ndr_dns_string_half_dots(void **state)
{
TALLOC_CTX *mem_ctx = talloc_new(NULL);
char *name;
struct timespec start;
uint64_t elapsed;
clock_gettime_mono(&start);
name =_test_ndr_pull_dns_string_list(mem_ctx, 127, 2, false);
elapsed_time(start, "pull");
_test_ndr_push_dns_string_list(mem_ctx, name, false);
elapsed = elapsed_time(start, "total");
assert_in_range(elapsed, 0, 200000);
talloc_free(mem_ctx);
}
static void test_ndr_nbt_string_half_dots(void **state)
{
TALLOC_CTX *mem_ctx = talloc_new(NULL);
char *name;
struct timespec start;
uint64_t elapsed;
clock_gettime_mono(&start);
name =_test_ndr_pull_dns_string_list(mem_ctx, 127, 2, true);
elapsed_time(start, "pull");
_test_ndr_push_dns_string_list(mem_ctx, name, true);
elapsed = elapsed_time(start, "total");
assert_in_range(elapsed, 0, 200000);
talloc_free(mem_ctx);
}
static void test_ndr_dns_string_all_dots(void **state)
{
TALLOC_CTX *mem_ctx = talloc_new(NULL);
char *name;
struct timespec start;
uint64_t elapsed;
clock_gettime_mono(&start);
name =_test_ndr_pull_dns_string_list(mem_ctx, 127, 1, false);
elapsed_time(start, "pull");
_test_ndr_push_dns_string_list(mem_ctx, name, false);
elapsed = elapsed_time(start, "total");
assert_in_range(elapsed, 0, 200000);
talloc_free(mem_ctx);
}
static void test_ndr_nbt_string_all_dots(void **state)
{
TALLOC_CTX *mem_ctx = talloc_new(NULL);
char *name;
struct timespec start;
uint64_t elapsed;
clock_gettime_mono(&start);
name =_test_ndr_pull_dns_string_list(mem_ctx, 127, 1, true);
elapsed_time(start, "pull");
_test_ndr_push_dns_string_list(mem_ctx, name, true);
elapsed = elapsed_time(start, "total");
assert_in_range(elapsed, 0, 200000);
talloc_free(mem_ctx);
}
int main(int argc, const char **argv)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_ndr_nbt_string_half_dots),
cmocka_unit_test(test_ndr_dns_string_half_dots),
cmocka_unit_test(test_ndr_nbt_string_all_dots),
cmocka_unit_test(test_ndr_dns_string_all_dots),
};
cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
return cmocka_run_group_tests(tests, NULL, NULL);
}
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