Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2
3/*
4 * Copyright (c) 2025, Google LLC.
5 * Pasha Tatashin <pasha.tatashin@soleen.com>
6 *
7 * Utility functions for LUO kselftests.
8 */
9
10#ifndef LUO_TEST_UTILS_H
11#define LUO_TEST_UTILS_H
12
13#include <errno.h>
14#include <string.h>
15#include <linux/liveupdate.h>
16#include "../kselftest.h"
17
18#define LUO_DEVICE "/dev/liveupdate"
19
20#define fail_exit(fmt, ...) \
21 ksft_exit_fail_msg("[%s:%d] " fmt " (errno: %s)\n", \
22 __func__, __LINE__, ##__VA_ARGS__, strerror(errno))
23
24int luo_open_device(void);
25int luo_create_session(int luo_fd, const char *name);
26int luo_retrieve_session(int luo_fd, const char *name);
27int luo_session_finish(int session_fd);
28
29int create_and_preserve_memfd(int session_fd, int token, const char *data);
30int restore_and_verify_memfd(int session_fd, int token, const char *expected_data);
31
32void create_state_file(int luo_fd, const char *session_name, int token,
33 int next_stage);
34void restore_and_read_stage(int state_session_fd, int token, int *stage);
35
36void daemonize_and_wait(void);
37
38typedef void (*luo_test_stage1_fn)(int luo_fd);
39typedef void (*luo_test_stage2_fn)(int luo_fd, int state_session_fd);
40
41int luo_test(int argc, char *argv[], const char *state_session_name,
42 luo_test_stage1_fn stage1, luo_test_stage2_fn stage2);
43
44#endif /* LUO_TEST_UTILS_H */