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// SPDX-License-Identifier: GPL-2.0+
/*
* Test device path functions
*
* Copyright (c) 2020 Heinrich Schuchardt <xypron.glpk@gmx.de>
*/
#include <common.h>
#include <efi_loader.h>
#include <test/lib.h>
#include <test/test.h>
#include <test/ut.h>
static int lib_test_efi_dp_check_length(struct unit_test_state *uts)
{
/* end of device path */
u8 d1[] __aligned(2) = {
0x7f, 0xff, 0x04, 0x00 };
/* device path node with length less then 4 */
u8 d2[] __aligned(2) = {
0x01, 0x02, 0x02, 0x00, 0x04, 0x00, 0x7f, 0xff, 0x04, 0x00 };
/* well formed device path */
u8 d3[] __aligned(2) = {
0x03, 0x02, 0x08, 0x00, 0x01, 0x00, 0x01, 0x00,
0x7f, 0xff, 0x04, 0x00 };
struct efi_device_path *p1 = (struct efi_device_path *)d1;
struct efi_device_path *p2 = (struct efi_device_path *)d2;
struct efi_device_path *p3 = (struct efi_device_path *)d3;
ut_asserteq((ssize_t)-EINVAL, efi_dp_check_length(p1, SIZE_MAX));
ut_asserteq((ssize_t)sizeof(d1), efi_dp_check_length(p1, sizeof(d1)));
ut_asserteq((ssize_t)sizeof(d1),
efi_dp_check_length(p1, sizeof(d1) + 4));
ut_asserteq((ssize_t)-1, efi_dp_check_length(p1, sizeof(d1) - 1));
ut_asserteq((ssize_t)-1, efi_dp_check_length(p2, sizeof(d2)));
ut_asserteq((ssize_t)-1, efi_dp_check_length(p3, sizeof(d3) - 1));
ut_asserteq((ssize_t)sizeof(d3), efi_dp_check_length(p3, sizeof(d3)));
ut_asserteq((ssize_t)sizeof(d3), efi_dp_check_length(p3, SSIZE_MAX));
ut_asserteq((ssize_t)-EINVAL,
efi_dp_check_length(p3, (size_t)SSIZE_MAX + 1));
ut_asserteq((ssize_t)sizeof(d3),
efi_dp_check_length(p3, sizeof(d3) + 4));
return 0;
}
LIB_TEST(lib_test_efi_dp_check_length, 0);
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