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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2024, Huawei Technologies Co, Ltd.
*
* Authors: Zhihao Cheng <chengzhihao1@huawei.com>
*/
#ifndef __FSCK_UBIFS_H__
#define __FSCK_UBIFS_H__
/* Exit codes used by fsck-type programs */
#define FSCK_OK 0 /* No errors */
#define FSCK_NONDESTRUCT 1 /* File system errors corrected */
#define FSCK_REBOOT 2 /* System should be rebooted */
#define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
#define FSCK_ERROR 8 /* Operational error */
#define FSCK_USAGE 16 /* Usage or syntax error */
#define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
#define FSCK_LIBRARY 128 /* Shared library error */
/*
* There are 6 working modes for fsck:
* NORMAL_MODE: Check the filesystem, ask user whether or not to fix the
* problem as long as inconsistent data is found during checking.
* SAFE_MODE: Check and safely repair the filesystem, if there are any
* data dropping operations needed by fixing, fsck will fail.
* DANGER_MODE0:Check and repair the filesystem according to TNC, data dropping
* will be reported. If TNC/master/log is corrupted, fsck will fail.
* DANGER_MODE1:Check and forcedly repair the filesystem according to TNC,
* turns to @REBUILD_MODE mode automatically if TNC/master/log is
* corrupted.
* REBUILD_MODE:Scan entire UBI volume to find all nodes, and rebuild the
* filesystem, always make fsck success.
* CHECK_MODE: Make no changes to the filesystem, only check the filesystem.
*/
enum { NORMAL_MODE = 0, SAFE_MODE, DANGER_MODE0,
DANGER_MODE1, REBUILD_MODE, CHECK_MODE };
/* Types of inconsistent problems */
enum { SB_CORRUPTED = 0 };
/**
* struct ubifs_fsck_info - UBIFS fsck information.
* @mode: working mode
* @failure_reason: reasons for failed operations
* @lpt_status: the status of lpt, could be: %0(OK), %FR_LPT_CORRUPTED or
* %FR_LPT_INCORRECT
*/
struct ubifs_fsck_info {
int mode;
unsigned int failure_reason;
unsigned int lpt_status;
};
#define FSCK(c) ((struct ubifs_fsck_info*)c->private)
static inline const char *mode_name(const struct ubifs_info *c)
{
if (!c->private)
return "";
switch (FSCK(c)->mode) {
case NORMAL_MODE:
return ",normal mode";
case SAFE_MODE:
return ",safe mode";
case DANGER_MODE0:
return ",danger mode";
case DANGER_MODE1:
return ",danger + rebuild mode";
case REBUILD_MODE:
return ",rebuild mode";
case CHECK_MODE:
return ",check mode";
default:
return "";
}
}
#define log_out(c, fmt, ...) \
printf("%s[%d] (%s%s): " fmt "\n", c->program_name ? : "noprog",\
getpid(), c->dev_name ? : "-", mode_name(c), \
##__VA_ARGS__)
#define log_err(c, err, fmt, ...) do { \
printf("%s[%d][ERROR] (%s%s): %s: " fmt, \
c->program_name ? : "noprog", getpid(), \
c->dev_name ? : "-", mode_name(c), \
__FUNCTION__, ##__VA_ARGS__); \
if (err) \
printf(" - %s", strerror(err)); \
printf("\n"); \
} while (0)
/* Exit code for fsck program. */
extern int exit_code;
/* problem.c */
bool fix_problem(const struct ubifs_info *c, int problem_type);
/* load_fs.c */
int ubifs_load_filesystem(struct ubifs_info *c);
void ubifs_destroy_filesystem(struct ubifs_info *c);
#endif
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