diff options
Diffstat (limited to 'librpc/tests/test_ndr_dns_nbt.c')
| -rw-r--r-- | librpc/tests/test_ndr_dns_nbt.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/librpc/tests/test_ndr_dns_nbt.c b/librpc/tests/test_ndr_dns_nbt.c new file mode 100644 index 00000000000..1e2ef45c10d --- /dev/null +++ b/librpc/tests/test_ndr_dns_nbt.c @@ -0,0 +1,236 @@ +/* + * 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); +} |