diff options
Diffstat (limited to 'librpc/tests')
| -rw-r--r-- | librpc/tests/test_ndr.c | 142 | ||||
| -rw-r--r-- | librpc/tests/test_ndr_dns_nbt.c | 236 | ||||
| -rw-r--r-- | librpc/tests/test_ndr_macros.c | 136 | ||||
| -rw-r--r-- | librpc/tests/test_ndr_string.c | 207 |
4 files changed, 721 insertions, 0 deletions
diff --git a/librpc/tests/test_ndr.c b/librpc/tests/test_ndr.c new file mode 100644 index 0000000..a26c75a --- /dev/null +++ b/librpc/tests/test_ndr.c @@ -0,0 +1,142 @@ +/* + * 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/>. + * + */ + +/* + * from cmocka.c: + * These headers or their equivalents should be included prior to + * including + * this header file. + * + * #include <stdarg.h> + * #include <stddef.h> + * #include <setjmp.h> + * + * This allows test applications to use custom definitions of C standard + * library functions and types. + * + */ +#include "replace.h" +#include <setjmp.h> +#include <cmocka.h> + +#include "librpc/ndr/libndr.h" + +/* + * Test NDR_PULL_NEED_BYTES integer overflow handling. + */ +static enum ndr_err_code wrap_NDR_PULL_NEED_BYTES( + struct ndr_pull *ndr, + uint32_t bytes) { + + NDR_PULL_NEED_BYTES(ndr, bytes); + return NDR_ERR_SUCCESS; +} + +static void test_NDR_PULL_NEED_BYTES(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + + ndr.data_size = UINT32_MAX; + ndr.offset = UINT32_MAX -1; + + /* + * This will not cause an overflow + */ + err = wrap_NDR_PULL_NEED_BYTES(&ndr, 1); + assert_int_equal(NDR_ERR_SUCCESS, err); + + /* + * This will cause an overflow + * and (offset + n) will be less than data_size + */ + err = wrap_NDR_PULL_NEED_BYTES(&ndr, 2); + assert_int_equal(NDR_ERR_BUFSIZE, err); +} + +/* + * Test NDR_PULL_ALIGN integer overflow handling. + */ +static enum ndr_err_code wrap_NDR_PULL_ALIGN( + struct ndr_pull *ndr, + uint32_t bytes) { + + NDR_PULL_ALIGN(ndr, bytes); + return NDR_ERR_SUCCESS; +} + +static void test_NDR_PULL_ALIGN(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + + ndr.data_size = UINT32_MAX; + ndr.offset = UINT32_MAX -1; + + /* + * This will not cause an overflow + */ + err = wrap_NDR_PULL_ALIGN(&ndr, 2); + assert_int_equal(NDR_ERR_SUCCESS, err); + + /* + * This will cause an overflow + * and (offset + n) will be less than data_size + */ + err = wrap_NDR_PULL_ALIGN(&ndr, 4); + assert_int_equal(NDR_ERR_BUFSIZE, err); +} + +/* + * Test ndr_pull_advance integer overflow handling. + */ +static void test_ndr_pull_advance(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + + ndr.data_size = UINT32_MAX; + ndr.offset = UINT32_MAX -1; + + /* + * This will not cause an overflow + */ + err = ndr_pull_advance(&ndr, 1); + assert_int_equal(NDR_ERR_SUCCESS, err); + + /* + * This will cause an overflow + * and (offset + n) will be less than data_size + */ + err = ndr_pull_advance(&ndr, 2); + assert_int_equal(NDR_ERR_BUFSIZE, err); +} + +int main(int argc, const char **argv) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_NDR_PULL_NEED_BYTES), + cmocka_unit_test(test_NDR_PULL_ALIGN), + cmocka_unit_test(test_ndr_pull_advance), + }; + + cmocka_set_message_output(CM_OUTPUT_SUBUNIT); + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/librpc/tests/test_ndr_dns_nbt.c b/librpc/tests/test_ndr_dns_nbt.c new file mode 100644 index 0000000..1e2ef45 --- /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); +} diff --git a/librpc/tests/test_ndr_macros.c b/librpc/tests/test_ndr_macros.c new file mode 100644 index 0000000..337bc95 --- /dev/null +++ b/librpc/tests/test_ndr_macros.c @@ -0,0 +1,136 @@ +/* + * 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/>. + * + */ + +/* + * from cmocka.c: + * These headers or their equivalents should be included prior to + * including + * this header file. + * + * #include <stdarg.h> + * #include <stddef.h> + * #include <setjmp.h> + * + * This allows test applications to use custom definitions of C standard + * library functions and types. + * + */ +#include "replace.h" +#include <setjmp.h> +#include <cmocka.h> + +#include "librpc/ndr/libndr.h" + +/* + * Test NDR_RECURSION_CHECK. + */ +static enum ndr_err_code wrap_NDR_RECURSION_CHECK( + struct ndr_pull *ndr, + uint32_t bytes) { + + NDR_RECURSION_CHECK(ndr, bytes); + return NDR_ERR_SUCCESS; +} + +static void test_NDR_RECURSION_CHECK(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + + + ndr.global_max_recursion = 0; + ndr.recursion_depth = 42; + err = wrap_NDR_RECURSION_CHECK(&ndr, 43); + assert_int_equal(NDR_ERR_SUCCESS, err); + assert_int_equal(43, ndr.recursion_depth); + + ndr.global_max_recursion = 0; + ndr.recursion_depth = 43; + err = wrap_NDR_RECURSION_CHECK(&ndr, 43); + assert_int_equal(NDR_ERR_MAX_RECURSION_EXCEEDED, err); + assert_int_equal(44, ndr.recursion_depth); + + ndr.global_max_recursion = 0; + ndr.recursion_depth = 44; + err = wrap_NDR_RECURSION_CHECK(&ndr, 43); + assert_int_equal(NDR_ERR_MAX_RECURSION_EXCEEDED, err); + assert_int_equal(45, ndr.recursion_depth); + + ndr.global_max_recursion = 5; + ndr.recursion_depth = 5; + err = wrap_NDR_RECURSION_CHECK(&ndr, 20); + assert_int_equal(NDR_ERR_MAX_RECURSION_EXCEEDED, err); + assert_int_equal(6, ndr.recursion_depth); + + ndr.global_max_recursion = 5; + ndr.recursion_depth = 4; + err = wrap_NDR_RECURSION_CHECK(&ndr, 20); + assert_int_equal(NDR_ERR_SUCCESS, err); + assert_int_equal(5, ndr.recursion_depth); + + ndr.global_max_recursion = 20; + ndr.recursion_depth = 5; + err = wrap_NDR_RECURSION_CHECK(&ndr, 5); + assert_int_equal(NDR_ERR_MAX_RECURSION_EXCEEDED, err); + assert_int_equal(6, ndr.recursion_depth); + + ndr.global_max_recursion = 20; + ndr.recursion_depth = 4; + err = wrap_NDR_RECURSION_CHECK(&ndr, 5); + assert_int_equal(NDR_ERR_SUCCESS, err); + assert_int_equal(5, ndr.recursion_depth); +} + +/* + * Test NDR_RECURSION_RETURN. + */ +static enum ndr_err_code wrap_NDR_RECURSION_UNWIND( + struct ndr_pull *ndr) { + + NDR_RECURSION_UNWIND(ndr); + return NDR_ERR_SUCCESS; +} + +static void test_NDR_RECURSION_UNWIND(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + + ndr.recursion_depth = 5; + err = wrap_NDR_RECURSION_UNWIND(&ndr); + assert_int_equal(NDR_ERR_SUCCESS, err); + assert_int_equal(4, ndr.recursion_depth); + + ndr.recursion_depth = 0; + err = wrap_NDR_RECURSION_UNWIND(&ndr); + assert_int_equal(NDR_ERR_UNDERFLOW, err); + assert_int_equal(0, ndr.recursion_depth); + +} +int main(int argc, const char **argv) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_NDR_RECURSION_CHECK), + cmocka_unit_test(test_NDR_RECURSION_UNWIND), + }; + + cmocka_set_message_output(CM_OUTPUT_SUBUNIT); + return cmocka_run_group_tests(tests, NULL, NULL); +} diff --git a/librpc/tests/test_ndr_string.c b/librpc/tests/test_ndr_string.c new file mode 100644 index 0000000..24ec93b --- /dev/null +++ b/librpc/tests/test_ndr_string.c @@ -0,0 +1,207 @@ +/* + * Tests for librpc ndr_string.c + * + * Copyright (C) Catalyst.NET Ltd 2019 + * + * 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/>. + * + */ + +/* + * from cmocka.c: + * These headers or their equivalents should be included prior to + * including + * this header file. + * + * #include <stdarg.h> + * #include <stddef.h> + * #include <setjmp.h> + * + * This allows test applications to use custom definitions of C standard + * library functions and types. + * + */ +#include "replace.h" +#include <setjmp.h> +#include <cmocka.h> + +#include "librpc/ndr/ndr_string.c" + +/* + * Try and pull a null terminated string from a zero length buffer + * Should fail for both 1 byte, and 2 byte character strings. + */ +static void test_pull_string_zero_len_nul_term(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + int flags = NDR_SCALARS; + uint8_t data[] = {0x0, 0x0}; + const char *s = NULL; + + ndr.flags = LIBNDR_FLAG_STR_UTF8 | LIBNDR_FLAG_STR_NULLTERM; + ndr.data = data; + ndr.data_size = 0; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_BUFSIZE); + assert_null(s); + assert_int_equal(0, ndr.offset); + + ndr.flags = LIBNDR_FLAG_STR_NULLTERM; + ndr.offset = 0; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_BUFSIZE); + assert_null(s); + assert_int_equal(0, ndr.offset); + +} + +/* + * Try and pull a null terminated string from a 1 byte buffer + * Should succeed for 1 byte character and + * fail for 2 byte character strings. + */ +static void test_pull_string_len_1_nul_term(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + int flags = NDR_SCALARS; + const char *s = NULL; + uint8_t data[] = {0x0, 0x0}; + + ndr.flags = LIBNDR_FLAG_STR_UTF8 | LIBNDR_FLAG_STR_NULLTERM; + ndr.data = data; + ndr.data_size = 1; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_non_null(s); + assert_int_equal(1, ndr.offset); + + ndr.offset = 0; + ndr.flags = LIBNDR_FLAG_STR_NULLTERM; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_BUFSIZE); + assert_int_equal(0, ndr.offset); +} + +/* + * Try and pull a null terminated string from a 2 byte buffer + * Should succeed for both 1 byte, and 2 byte character strings. + */ +static void test_pull_string_len_2_nul_term(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + int flags = NDR_SCALARS; + const char *s; + uint8_t data[] = {0x0, 0x0}; + + ndr.flags = LIBNDR_FLAG_STR_UTF8 | LIBNDR_FLAG_STR_NULLTERM; + ndr.data = data; + ndr.data_size = 2; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_non_null(s); + assert_int_equal(1, ndr.offset); + + ndr.offset = 0; + ndr.flags = LIBNDR_FLAG_STR_NULLTERM; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_non_null(s); + assert_int_equal(2, ndr.offset); + + +} + +static void test_ndr_string_n_length(void **state) +{ + char test_str1[5] = "Test"; + char test_str2[5] = {0}; + char test_str3[32] = "This is a test too"; + uint8_t test_str_u16[64] = { + 0x5C, 0x00, 0x5C, 0x00, 0x4C, 0x00, 0x6F, 0x00, + 0x67, 0x00, 0x6F, 0x00, 0x6E, 0x00, 0x2D, 0x00, + 0x6D, 0x00, 0x75, 0x00, 0x63, 0x00, 0x5C, 0x00, + 0x6B, 0x00, 0x79, 0x00, 0x6F, 0x00, 0x63, 0x00, + 0x65, 0x00, 0x72, 0x00, 0x61, 0x00, 0x2D, 0x00, + 0x6D, 0x00, 0x75, 0x00, 0x63, 0x00, 0x2D, 0x00, + 0x6E, 0x00, 0x00, 0x00 }; + size_t len; + + len = ndr_string_n_length(test_str1, sizeof(test_str1), 1); + assert_int_equal(len, 5); + + len = ndr_string_n_length(test_str1, sizeof(test_str1) - 1, 1); + assert_int_equal(len, 4); + + len = ndr_string_n_length(test_str2, sizeof(test_str2), 1); + assert_int_equal(len, 1); + + len = ndr_string_n_length(test_str3, sizeof(test_str3), 1); + assert_int_equal(len, 19); + + len = ndr_string_n_length(test_str3, 0, 1); + assert_int_equal(len, 0); + + len = ndr_string_n_length(test_str_u16, 32, 2); + assert_int_equal(len, 26); +} + +static void test_pull_string_array(void **state) +{ + /* We try pulling long string arrays without long strings */ + const char **r = NULL; + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + TALLOC_CTX *mem_ctx = talloc_new(NULL); + size_t len = 1 * 1024 * 1024; + uint8_t *data = talloc_array(mem_ctx, uint8_t, len); + size_t i; + + for (i = 0; i < len; i++) { + data[i] = (i & 1) ? '\0' : 'X'; + } + + ndr.current_mem_ctx = mem_ctx; + + ndr.flags = (LIBNDR_FLAG_REF_ALLOC | + LIBNDR_FLAG_REMAINING | + LIBNDR_FLAG_STR_NULLTERM | + LIBNDR_FLAG_STR_RAW8); + ndr.data = data; + ndr.data_size = len; + + err = ndr_pull_string_array(&ndr, NDR_SCALARS, &r); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_string_equal(r[0], "X"); + assert_string_equal(r[len / 3], "X"); + assert_string_equal(r[len / 2 - 1], "X"); + assert_ptr_equal(r[len / 2], NULL); + TALLOC_FREE(mem_ctx); +} + +int main(int argc, const char **argv) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_pull_string_zero_len_nul_term), + cmocka_unit_test(test_pull_string_len_1_nul_term), + cmocka_unit_test(test_pull_string_len_2_nul_term), + cmocka_unit_test(test_ndr_string_n_length), + cmocka_unit_test(test_pull_string_array) + }; + + cmocka_set_message_output(CM_OUTPUT_SUBUNIT); + return cmocka_run_group_tests(tests, NULL, NULL); +} |