/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2016-2018 Fox Crypto B.V. <openvpn@fox-it.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#elif defined(_MSC_VER)
#include "config-msvc.h"
#endif
#include "syshead.h"
#include <setjmp.h>
#include <cmocka.h>
#include "buffer.h"
#include "buffer.c"
static void
test_buffer_strprefix(void **state)
{
assert_true(strprefix("123456", "123456"));
assert_true(strprefix("123456", "123"));
assert_true(strprefix("123456", ""));
assert_false(strprefix("123456", "456"));
assert_false(strprefix("12", "123"));
}
#define testsep ","
#define testnosep ""
#define teststr1 "one"
#define teststr2 "two"
#define teststr3 "three"
#define teststr4 "four"
#define assert_buf_equals_str(buf, str) \
assert_int_equal(BLEN(buf), strlen(str)); \
assert_memory_equal(BPTR(buf), str, BLEN(buf));
struct test_buffer_list_aggregate_ctx {
struct buffer_list *empty;
struct buffer_list *one_two_three;
struct buffer_list *zero_length_strings;
struct buffer_list *empty_buffers;
};
static int test_buffer_list_setup(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = calloc(1, sizeof(*ctx));
ctx->empty = buffer_list_new(0);
ctx->one_two_three = buffer_list_new(3);
buffer_list_push(ctx->one_two_three, teststr1);
buffer_list_push(ctx->one_two_three, teststr2);
buffer_list_push(ctx->one_two_three, teststr3);
ctx->zero_length_strings = buffer_list_new(2);
buffer_list_push(ctx->zero_length_strings, "");
buffer_list_push(ctx->zero_length_strings, "");
ctx->empty_buffers = buffer_list_new(2);
uint8_t data = 0;
buffer_list_push_data(ctx->empty_buffers, &data, 0);
buffer_list_push_data(ctx->empty_buffers, &data, 0);
*state = ctx;
return 0;
}
static int test_buffer_list_teardown(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
buffer_list_free(ctx->empty);
buffer_list_free(ctx->one_two_three);
buffer_list_free(ctx->zero_length_strings);
buffer_list_free(ctx->empty_buffers);
free(ctx);
return 0;
}
static void
test_buffer_list_full(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
/* list full */
assert_int_equal(ctx->one_two_three->size, 3);
buffer_list_push(ctx->one_two_three, teststr4);
assert_int_equal(ctx->one_two_three->size, 3);
}
static void
test_buffer_list_aggregate_separator_empty(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
/* aggregating an empty buffer list results in an empty buffer list */
buffer_list_aggregate_separator(ctx->empty, 3, testsep);
assert_null(ctx->empty->head);
}
static void
test_buffer_list_aggregate_separator_noop(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
/* With a max length of 2, no aggregation should take place */
buffer_list_aggregate_separator(ctx->one_two_three, 2, testsep);
assert_int_equal(ctx->one_two_three->size, 3);
struct buffer *buf = buffer_list_peek(ctx->one_two_three);
assert_buf_equals_str(buf, teststr1);
}
static void
test_buffer_list_aggregate_separator_two(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
const char *expected = teststr1 testsep teststr2 testsep;
/* Aggregate the first two elements
* (add 1 to max_len to test if "three" is not sneaked in too)
*/
buffer_list_aggregate_separator(ctx->one_two_three, strlen(expected) + 1,
testsep);
assert_int_equal(ctx->one_two_three->size, 2);
struct buffer *buf = buffer_list_peek(ctx->one_two_three);
assert_buf_equals_str(buf, expected);
}
static void
test_buffer_list_aggregate_separator_all(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
/* Aggregate all */
buffer_list_aggregate_separator(ctx->one_two_three, 1<<16, testsep);
assert_int_equal(ctx->one_two_three->size, 1);
struct buffer *buf = buffer_list_peek(ctx->one_two_three);
assert_buf_equals_str(buf,
teststr1 testsep teststr2 testsep teststr3 testsep);
}
static void
test_buffer_list_aggregate_separator_nosep(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
/* Aggregate all */
buffer_list_aggregate_separator(ctx->one_two_three, 1<<16, testnosep);
assert_int_equal(ctx->one_two_three->size, 1);
struct buffer *buf = buffer_list_peek(ctx->one_two_three);
assert_buf_equals_str(buf, teststr1 teststr2 teststr3);
}
static void
test_buffer_list_aggregate_separator_zerolen(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
struct buffer_list *bl_zerolen = ctx->zero_length_strings;
/* Aggregate all */
buffer_list_aggregate_separator(bl_zerolen, 1<<16, testnosep);
assert_int_equal(bl_zerolen->size, 1);
struct buffer *buf = buffer_list_peek(bl_zerolen);
assert_buf_equals_str(buf, "");
}
static void
test_buffer_list_aggregate_separator_emptybuffers(void **state)
{
struct test_buffer_list_aggregate_ctx *ctx = *state;
struct buffer_list *bl_emptybuffers = ctx->empty_buffers;
/* Aggregate all */
buffer_list_aggregate_separator(bl_emptybuffers, 1<<16, testnosep);
assert_int_equal(bl_emptybuffers->size, 1);
struct buffer *buf = buffer_list_peek(bl_emptybuffers);
assert_int_equal(BLEN(buf), 0);
}
static void
test_buffer_free_gc_one(void **state)
{
struct gc_arena gc = gc_new();
struct buffer buf = alloc_buf_gc(1024, &gc);
assert_ptr_equal(gc.list + 1, buf.data);
free_buf_gc(&buf, &gc);
assert_null(gc.list);
gc_free(&gc);
}
static void
test_buffer_free_gc_two(void **state)
{
struct gc_arena gc = gc_new();
struct buffer buf1 = alloc_buf_gc(1024, &gc);
struct buffer buf2 = alloc_buf_gc(1024, &gc);
struct buffer buf3 = alloc_buf_gc(1024, &gc);
struct gc_entry *e;
e = gc.list;
assert_ptr_equal(e + 1, buf3.data);
assert_ptr_equal(e->next + 1, buf2.data);
assert_ptr_equal(e->next->next + 1, buf1.data);
free_buf_gc(&buf2, &gc);
assert_non_null(gc.list);
while (e)
{
assert_ptr_not_equal(e + 1, buf2.data);
e = e->next;
}
gc_free(&gc);
}
int
main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_buffer_strprefix),
cmocka_unit_test_setup_teardown(test_buffer_list_full,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_empty,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_noop,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_two,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_all,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_nosep,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_zerolen,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test_setup_teardown(test_buffer_list_aggregate_separator_emptybuffers,
test_buffer_list_setup,
test_buffer_list_teardown),
cmocka_unit_test(test_buffer_free_gc_one),
cmocka_unit_test(test_buffer_free_gc_two),
};
return cmocka_run_group_tests_name("buffer", tests, NULL, NULL);
}