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df1a0d068d
Move luo_test_utils.[ch] into a lib/ directory and make libliveupdate library. Pull the rules to build them out into a separate libliveupdate.mk script. This will enable these utilities to be also built by and used within other selftests (such as VFIO). Update path in vmtest.sh as that one uses hardcoded path for util. No functional change intended. Co-developed-by: David Matlack <dmatlack@google.com> Signed-off-by: David Matlack <dmatlack@google.com> Acked-by: Pratyush Yadav (Google) <pratyush@kernel.org> Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Vipin Sharma <vipinsh@google.com> Link: https://patch.msgid.link/20260720203202.1964557-3-vipinsh@google.com Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2025, Google LLC.
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* Pasha Tatashin <pasha.tatashin@soleen.com>
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*
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* Utility functions for LUO kselftests.
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*/
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#ifndef SELFTESTS_LIVEUPDATE_LIB_LIVEUPDATE_H
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#define SELFTESTS_LIVEUPDATE_LIB_LIVEUPDATE_H
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#include <errno.h>
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#include <string.h>
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#include <linux/liveupdate.h>
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#include "../../../kselftest.h"
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#define LUO_DEVICE "/dev/liveupdate"
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#define fail_exit(fmt, ...) \
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ksft_exit_fail_msg("[%s:%d] " fmt " (errno: %s)\n", \
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__func__, __LINE__, ##__VA_ARGS__, strerror(errno))
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int luo_open_device(void);
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int luo_create_session(int luo_fd, const char *name);
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int luo_retrieve_session(int luo_fd, const char *name);
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int luo_session_finish(int session_fd);
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int luo_get_session_name(int session_fd, char *name, size_t name_len);
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int luo_ensure_nofile_limit(long min_limit);
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int luo_session_preserve_fd(int session_fd, int fd, __u64 token);
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int luo_session_retrieve_fd(int session_fd, __u64 token);
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int create_and_preserve_memfd(int session_fd, int token, const char *data);
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int restore_and_verify_memfd(int session_fd, int token, const char *expected_data);
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void create_state_file(int luo_fd, const char *session_name, int token,
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int next_stage);
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void restore_and_read_stage(int state_session_fd, int token, int *stage);
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void daemonize_and_wait(void);
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typedef void (*luo_test_stage1_fn)(int luo_fd);
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typedef void (*luo_test_stage2_fn)(int luo_fd, int state_session_fd);
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int luo_test(int argc, char *argv[], const char *state_session_name,
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luo_test_stage1_fn stage1, luo_test_stage2_fn stage2);
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#endif /* SELFTESTS_LIVEUPDATE_LIB_LIVEUPDATE_H */
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