blob: 6ef1fc8d2f4bc2d657dab19a58d08f88107e22e3 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2004-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include "command.h"
#include "input.h"
#include "init.h"
#include "io.h"
#include "xfs_errortag.h"
static cmdinfo_t inject_cmd;
static int
error_tag(char *name)
{
static struct {
int tag;
char *name;
} *e, eflags[] = {
{ XFS_ERRTAG_NOERROR, "noerror" },
{ XFS_ERRTAG_IFLUSH_1, "iflush1" },
{ XFS_ERRTAG_IFLUSH_2, "iflush2" },
{ XFS_ERRTAG_IFLUSH_3, "iflush3" },
{ XFS_ERRTAG_IFLUSH_4, "iflush4" },
{ XFS_ERRTAG_IFLUSH_5, "iflush5" },
{ XFS_ERRTAG_IFLUSH_6, "iflush6" },
{ XFS_ERRTAG_DA_READ_BUF, "dareadbuf" },
{ XFS_ERRTAG_BTREE_CHECK_LBLOCK, "btree_chk_lblk" },
{ XFS_ERRTAG_BTREE_CHECK_SBLOCK, "btree_chk_sblk" },
{ XFS_ERRTAG_ALLOC_READ_AGF, "readagf" },
{ XFS_ERRTAG_IALLOC_READ_AGI, "readagi" },
{ XFS_ERRTAG_ITOBP_INOTOBP, "itobp" },
{ XFS_ERRTAG_IUNLINK, "iunlink" },
{ XFS_ERRTAG_IUNLINK_REMOVE, "iunlinkrm" },
{ XFS_ERRTAG_DIR_INO_VALIDATE, "dirinovalid" },
{ XFS_ERRTAG_BULKSTAT_READ_CHUNK, "bulkstat" },
{ XFS_ERRTAG_IODONE_IOERR, "logiodone" },
{ XFS_ERRTAG_STRATREAD_IOERR, "stratread" },
{ XFS_ERRTAG_STRATCMPL_IOERR, "stratcmpl" },
{ XFS_ERRTAG_DIOWRITE_IOERR, "diowrite" },
{ XFS_ERRTAG_BMAPIFORMAT, "bmapifmt" },
{ XFS_ERRTAG_FREE_EXTENT, "free_extent" },
{ XFS_ERRTAG_RMAP_FINISH_ONE, "rmap_finish_one" },
{ XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE, "refcount_continue_update" },
{ XFS_ERRTAG_REFCOUNT_FINISH_ONE, "refcount_finish_one" },
{ XFS_ERRTAG_BMAP_FINISH_ONE, "bmap_finish_one" },
{ XFS_ERRTAG_AG_RESV_CRITICAL, "ag_resv_critical" },
{ XFS_ERRTAG_DROP_WRITES, "drop_writes" },
{ XFS_ERRTAG_LOG_BAD_CRC, "log_bad_crc" },
{ XFS_ERRTAG_LOG_ITEM_PIN, "log_item_pin" },
{ XFS_ERRTAG_BUF_LRU_REF, "buf_lru_ref" },
{ XFS_ERRTAG_FORCE_SCRUB_REPAIR, "force_repair" },
{ XFS_ERRTAG_FORCE_SUMMARY_RECALC, "bad_summary" },
{ XFS_ERRTAG_IUNLINK_FALLBACK, "iunlink_fallback" },
{ XFS_ERRTAG_BUF_IOERROR, "buf_ioerror" },
{ XFS_ERRTAG_REDUCE_MAX_IEXTENTS, "reduce_max_iextents" },
{ XFS_ERRTAG_BMAP_ALLOC_MINLEN_EXTENT, "bmap_alloc_minlen_extent" },
{ XFS_ERRTAG_AG_RESV_FAIL, "ag_resv_fail" },
{ XFS_ERRTAG_LARP, "larp" },
{ XFS_ERRTAG_DA_LEAF_SPLIT, "da_leaf_split" },
{ XFS_ERRTAG_ATTR_LEAF_TO_NODE, "attr_leaf_to_node" },
{ XFS_ERRTAG_WB_DELAY_MS, "wb_delay_ms" },
{ XFS_ERRTAG_WRITE_DELAY_MS, "write_delay_ms" },
{ XFS_ERRTAG_MAX, NULL }
};
int count;
/*
* If this fails make sure every tag is defined in the array above,
* see xfs_errortag_attrs in kernelspace.
*/
BUILD_BUG_ON(sizeof(eflags) != (XFS_ERRTAG_MAX + 1) * sizeof(*e));
/* Search for a name */
if (name) {
for (e = eflags; e->name; e++)
if (strcmp(name, e->name) == 0)
return e->tag;
return -1;
}
/* Dump all the names */
fputs("tags: [ ", stdout);
for (count = 0, e = eflags; e->name; e++, count++) {
if (count) {
fputs(", ", stdout);
if (!(count % 5))
fputs("\n\t", stdout);
}
fputs(e->name, stdout);
}
fputs(" ]\n", stdout);
return 0;
}
static void
inject_help(void)
{
printf(_(
"\n"
" inject errors into the filesystem of the currently open file\n"
"\n"
" Example:\n"
" 'inject readagf' - cause errors on allocation group freespace reads\n"
"\n"
" Causes the kernel to generate and react to errors within XFS, provided\n"
" the XFS kernel code has been built with debugging features enabled.\n"
" With no arguments, displays the list of error injection tags.\n"
"\n"));
}
static int
inject_f(
int argc,
char **argv)
{
xfs_error_injection_t error;
int command = XFS_IOC_ERROR_INJECTION;
if (argc == 1)
return error_tag(NULL);
while (--argc > 0) {
error.fd = file->fd;
if ((error.errtag = error_tag(argv[argc])) < 0) {
fprintf(stderr, _("no such tag -- %s\n"), argv[1]);
continue;
}
if (error.errtag == XFS_ERRTAG_NOERROR)
command = XFS_IOC_ERROR_CLEARALL;
if ((xfsctl(file->name, file->fd, command, &error)) < 0) {
perror("XFS_IOC_ERROR_INJECTION");
exitcode = 1;
continue;
}
}
return 0;
}
void
inject_init(void)
{
inject_cmd.name = "inject";
inject_cmd.cfunc = inject_f;
inject_cmd.argmin = 0;
inject_cmd.argmax = -1;
inject_cmd.flags = CMD_NOMAP_OK | CMD_FLAG_ONESHOT;
inject_cmd.args = _("[tag ...]");
inject_cmd.oneline = _("inject errors into a filesystem");
inject_cmd.help = inject_help;
if (expert)
add_command(&inject_cmd);
}