// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 */
#ifndef __XFS_ERROR_H__
#define __XFS_ERROR_H__

struct xfs_mount;

void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
                const char *filename, int linenum, xfs_failaddr_t failaddr);
void xfs_corruption_error(const char *tag, int level, struct xfs_mount *mp,
                const void *buf, size_t bufsize, const char *filename,
                int linenum, xfs_failaddr_t failaddr);
void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
void xfs_buf_verifier_error(struct xfs_buf *bp, int error, const char *name,
                const void *buf, size_t bufsz, xfs_failaddr_t failaddr);
void xfs_verifier_error(struct xfs_buf *bp, int error, xfs_failaddr_t failaddr);
void xfs_inode_verifier_error(struct xfs_inode *ip, int error, const char *name,
                const void *buf, size_t bufsz, xfs_failaddr_t failaddr);

#define XFS_ERROR_REPORT(e, lvl, mp)    \
        xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
#define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize)  \
        xfs_corruption_error(e, lvl, mp, buf, bufsize, \
                             __FILE__, __LINE__, __return_address)

#define XFS_ERRLEVEL_OFF        0
#define XFS_ERRLEVEL_LOW        1
#define XFS_ERRLEVEL_HIGH       5

/* Dump 128 bytes of any corrupt buffer */
#define XFS_CORRUPTION_DUMP_LEN         (128)

#ifdef DEBUG
int xfs_errortag_init(struct xfs_mount *mp);
void xfs_errortag_del(struct xfs_mount *mp);
bool xfs_errortag_test(struct xfs_mount *mp, const char *file, int line,
                unsigned int error_tag);
#define XFS_TEST_ERROR(mp, tag)         \
        xfs_errortag_test((mp), __FILE__, __LINE__, (tag))
void xfs_errortag_delay(struct xfs_mount *mp, const char *file, int line,
                unsigned int error_tag);
#define XFS_ERRORTAG_DELAY(mp, tag)             \
        xfs_errortag_delay((mp), __FILE__, __LINE__, (tag))
int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
int xfs_errortag_add_name(struct xfs_mount *mp, const char *tag_name);
void xfs_errortag_copy(struct xfs_mount *dst_mp, struct xfs_mount *src_mp);
int xfs_errortag_clearall(struct xfs_mount *mp);
#else
#define xfs_errortag_init(mp)                   (0)
#define xfs_errortag_del(mp)
#define XFS_TEST_ERROR(mp, tag)                 (false)
#define XFS_ERRORTAG_DELAY(mp, tag)             ((void)0)
#define xfs_errortag_add(mp, tag)               (-ENOSYS)
#define xfs_errortag_copy(dst_mp, src_mp)       ((void)0)
#define xfs_errortag_add_name(mp, tag_name)     (-ENOSYS)
#define xfs_errortag_clearall(mp)               (-ENOSYS)
#endif /* DEBUG */

/*
 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
 *                      a panic by setting fs.xfs.panic_mask in a sysctl.
 */
#define         XFS_NO_PTAG                     0u
#define         XFS_PTAG_IFLUSH                 (1u << 0)
#define         XFS_PTAG_LOGRES                 (1u << 1)
#define         XFS_PTAG_AILDELETE              (1u << 2)
#define         XFS_PTAG_ERROR_REPORT           (1u << 3)
#define         XFS_PTAG_SHUTDOWN_CORRUPT       (1u << 4)
#define         XFS_PTAG_SHUTDOWN_IOERROR       (1u << 5)
#define         XFS_PTAG_SHUTDOWN_LOGERROR      (1u << 6)
#define         XFS_PTAG_FSBLOCK_ZERO           (1u << 7)
#define         XFS_PTAG_VERIFIER_ERROR         (1u << 8)

#define         XFS_PTAG_MASK   (XFS_PTAG_IFLUSH | \
                                 XFS_PTAG_LOGRES | \
                                 XFS_PTAG_AILDELETE | \
                                 XFS_PTAG_ERROR_REPORT | \
                                 XFS_PTAG_SHUTDOWN_CORRUPT | \
                                 XFS_PTAG_SHUTDOWN_IOERROR | \
                                 XFS_PTAG_SHUTDOWN_LOGERROR | \
                                 XFS_PTAG_FSBLOCK_ZERO | \
                                 XFS_PTAG_VERIFIER_ERROR)

#define XFS_PTAG_STRINGS \
        { XFS_NO_PTAG,                  "none" }, \
        { XFS_PTAG_IFLUSH,              "iflush" }, \
        { XFS_PTAG_LOGRES,              "logres" }, \
        { XFS_PTAG_AILDELETE,           "aildelete" }, \
        { XFS_PTAG_ERROR_REPORT ,       "error_report" }, \
        { XFS_PTAG_SHUTDOWN_CORRUPT,    "corrupt" }, \
        { XFS_PTAG_SHUTDOWN_IOERROR,    "ioerror" }, \
        { XFS_PTAG_SHUTDOWN_LOGERROR,   "logerror" }, \
        { XFS_PTAG_FSBLOCK_ZERO,        "fsb_zero" }, \
        { XFS_PTAG_VERIFIER_ERROR,      "verifier" }

#endif  /* __XFS_ERROR_H__ */