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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include "libxfs.h"
#include "command.h"
#include "type.h"
#include "faddr.h"
#include "fprint.h"
#include "field.h"
#include "io.h"
#include "bit.h"
#include "output.h"
#include "init.h"
#include "agi.h"
static int agi_f(int argc, char **argv);
static void agi_help(void);
static const cmdinfo_t agi_cmd =
{ "agi", NULL, agi_f, 0, 1, 1, N_("[agno]"),
N_("set address to agi header"), agi_help };
const field_t agi_hfld[] = {
{ "", FLDT_AGI, OI(0), C1, 0, TYP_NONE },
{ NULL }
};
#define OFF(f) bitize(offsetof(xfs_agi_t, agi_ ## f))
const field_t agi_flds[] = {
{ "magicnum", FLDT_UINT32X, OI(OFF(magicnum)), C1, 0, TYP_NONE },
{ "versionnum", FLDT_UINT32D, OI(OFF(versionnum)), C1, 0, TYP_NONE },
{ "seqno", FLDT_AGNUMBER, OI(OFF(seqno)), C1, 0, TYP_NONE },
{ "length", FLDT_AGBLOCK, OI(OFF(length)), C1, 0, TYP_NONE },
{ "count", FLDT_AGINO, OI(OFF(count)), C1, 0, TYP_NONE },
{ "root", FLDT_AGBLOCK, OI(OFF(root)), C1, 0, TYP_INOBT },
{ "level", FLDT_UINT32D, OI(OFF(level)), C1, 0, TYP_NONE },
{ "freecount", FLDT_AGINO, OI(OFF(freecount)), C1, 0, TYP_NONE },
{ "newino", FLDT_AGINO, OI(OFF(newino)), C1, 0, TYP_INODE },
{ "dirino", FLDT_AGINO, OI(OFF(dirino)), C1, 0, TYP_INODE },
{ "unlinked", FLDT_AGINONN, OI(OFF(unlinked)),
CI(XFS_AGI_UNLINKED_BUCKETS), FLD_ARRAY, TYP_NONE },
{ "uuid", FLDT_UUID, OI(OFF(uuid)), C1, 0, TYP_NONE },
{ "crc", FLDT_CRC, OI(OFF(crc)), C1, 0, TYP_NONE },
{ "pad32", FLDT_UINT32X, OI(OFF(pad32)), C1, FLD_SKIPALL, TYP_NONE },
{ "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE },
{ "free_root", FLDT_AGBLOCK, OI(OFF(free_root)), C1, 0, TYP_FINOBT },
{ "free_level", FLDT_UINT32D, OI(OFF(free_level)), C1, 0, TYP_NONE },
{ "ino_blocks", FLDT_UINT32D, OI(OFF(iblocks)), C1, 0, TYP_NONE },
{ "fino_blocks", FLDT_UINT32D, OI(OFF(fblocks)), C1, 0, TYP_NONE },
{ NULL }
};
static void
agi_help(void)
{
dbprintf(_(
"\n"
" set allocation group inode btree\n"
"\n"
" Example:\n"
"\n"
" agi 3 (set location to 3rd allocation group inode btree and type to 'agi')\n"
"\n"
" Located in the 3rd 512 byte block of each allocation group,\n"
" the agi inode btree tracks all used/free inodes in the allocation group.\n"
" Inodes are allocated in 16k 'chunks', each btree entry tracks a 'chunk'.\n"
"\n"
));
}
static int
agi_f(
int argc,
char **argv)
{
xfs_agnumber_t agno;
char *p;
if (argc > 1) {
agno = (xfs_agnumber_t)strtoul(argv[1], &p, 0);
if (*p != '\0' || agno >= mp->m_sb.sb_agcount) {
dbprintf(_("bad allocation group number %s\n"), argv[1]);
return 0;
}
cur_agno = agno;
} else if (cur_agno == NULLAGNUMBER)
cur_agno = 0;
ASSERT(typtab[TYP_AGI].typnm == TYP_AGI);
set_cur(&typtab[TYP_AGI],
XFS_AG_DADDR(mp, cur_agno, XFS_AGI_DADDR(mp)),
XFS_FSS_TO_BB(mp, 1), DB_RING_ADD, NULL);
return 0;
}
void
agi_init(void)
{
add_command(&agi_cmd);
}
/*ARGSUSED*/
int
agi_size(
void *obj,
int startoff,
int idx)
{
return bitize(mp->m_sb.sb_sectsize);
}
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