busybox/util-linux/volume_id/unused_ufs.c
Denys Vlasenko f560422fa0 Big cleanup in config help and description
Redundant help texts (one which only repeats the description)
are deleted.

Descriptions and help texts are trimmed.

Some config options are moved, even across menus.

No config option _names_ are changed.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-01-10 14:58:54 +01:00

214 lines
5.1 KiB
C

/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_UFS) += ufs.o
//config:### config FEATURE_VOLUMEID_UFS
//config:### bool "ufs filesystem"
//config:### default y
//config:### depends on VOLUMEID
#include "volume_id_internal.h"
struct ufs_super_block {
uint32_t fs_link;
uint32_t fs_rlink;
uint32_t fs_sblkno;
uint32_t fs_cblkno;
uint32_t fs_iblkno;
uint32_t fs_dblkno;
uint32_t fs_cgoffset;
uint32_t fs_cgmask;
uint32_t fs_time;
uint32_t fs_size;
uint32_t fs_dsize;
uint32_t fs_ncg;
uint32_t fs_bsize;
uint32_t fs_fsize;
uint32_t fs_frag;
uint32_t fs_minfree;
uint32_t fs_rotdelay;
uint32_t fs_rps;
uint32_t fs_bmask;
uint32_t fs_fmask;
uint32_t fs_bshift;
uint32_t fs_fshift;
uint32_t fs_maxcontig;
uint32_t fs_maxbpg;
uint32_t fs_fragshift;
uint32_t fs_fsbtodb;
uint32_t fs_sbsize;
uint32_t fs_csmask;
uint32_t fs_csshift;
uint32_t fs_nindir;
uint32_t fs_inopb;
uint32_t fs_nspf;
uint32_t fs_optim;
uint32_t fs_npsect_state;
uint32_t fs_interleave;
uint32_t fs_trackskew;
uint32_t fs_id[2];
uint32_t fs_csaddr;
uint32_t fs_cssize;
uint32_t fs_cgsize;
uint32_t fs_ntrak;
uint32_t fs_nsect;
uint32_t fs_spc;
uint32_t fs_ncyl;
uint32_t fs_cpg;
uint32_t fs_ipg;
uint32_t fs_fpg;
struct ufs_csum {
uint32_t cs_ndir;
uint32_t cs_nbfree;
uint32_t cs_nifree;
uint32_t cs_nffree;
} PACKED fs_cstotal;
int8_t fs_fmod;
int8_t fs_clean;
int8_t fs_ronly;
int8_t fs_flags;
union {
struct {
int8_t fs_fsmnt[512];
uint32_t fs_cgrotor;
uint32_t fs_csp[31];
uint32_t fs_maxcluster;
uint32_t fs_cpc;
uint16_t fs_opostbl[16][8];
} PACKED fs_u1;
struct {
int8_t fs_fsmnt[468];
uint8_t fs_volname[32];
uint64_t fs_swuid;
int32_t fs_pad;
uint32_t fs_cgrotor;
uint32_t fs_ocsp[28];
uint32_t fs_contigdirs;
uint32_t fs_csp;
uint32_t fs_maxcluster;
uint32_t fs_active;
int32_t fs_old_cpc;
int32_t fs_maxbsize;
int64_t fs_sparecon64[17];
int64_t fs_sblockloc;
struct ufs2_csum_total {
uint64_t cs_ndir;
uint64_t cs_nbfree;
uint64_t cs_nifree;
uint64_t cs_nffree;
uint64_t cs_numclusters;
uint64_t cs_spare[3];
} PACKED fs_cstotal;
struct ufs_timeval {
int32_t tv_sec;
int32_t tv_usec;
} PACKED fs_time;
int64_t fs_size;
int64_t fs_dsize;
uint64_t fs_csaddr;
int64_t fs_pendingblocks;
int32_t fs_pendinginodes;
} PACKED fs_u2;
} fs_u11;
union {
struct {
int32_t fs_sparecon[53];
int32_t fs_reclaim;
int32_t fs_sparecon2[1];
int32_t fs_state;
uint32_t fs_qbmask[2];
uint32_t fs_qfmask[2];
} PACKED fs_sun;
struct {
int32_t fs_sparecon[53];
int32_t fs_reclaim;
int32_t fs_sparecon2[1];
uint32_t fs_npsect;
uint32_t fs_qbmask[2];
uint32_t fs_qfmask[2];
} PACKED fs_sunx86;
struct {
int32_t fs_sparecon[50];
int32_t fs_contigsumsize;
int32_t fs_maxsymlinklen;
int32_t fs_inodefmt;
uint32_t fs_maxfilesize[2];
uint32_t fs_qbmask[2];
uint32_t fs_qfmask[2];
int32_t fs_state;
} PACKED fs_44;
} fs_u2;
int32_t fs_postblformat;
int32_t fs_nrpos;
int32_t fs_postbloff;
int32_t fs_rotbloff;
uint32_t fs_magic;
uint8_t fs_space[1];
} PACKED;
#define UFS_MAGIC 0x00011954
#define UFS2_MAGIC 0x19540119
#define UFS_MAGIC_FEA 0x00195612
#define UFS_MAGIC_LFN 0x00095014
int FAST_FUNC volume_id_probe_ufs(struct volume_id *id, uint64_t off)
{
static const short offsets[] = { 0, 8, 64, 256 };
uint32_t magic;
unsigned i;
struct ufs_super_block *ufs;
dbg("probing at offset 0x%llx", (unsigned long long) off);
for (i = 0; i < ARRAY_SIZE(offsets); i++) {
ufs = volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
if (ufs == NULL)
return -1;
dbg("offset 0x%x", offsets[i] * 0x400);
magic = ufs->fs_magic;
if ((magic == cpu_to_be32(UFS_MAGIC))
|| (magic == cpu_to_be32(UFS2_MAGIC))
|| (magic == cpu_to_be32(UFS_MAGIC_FEA))
|| (magic == cpu_to_be32(UFS_MAGIC_LFN))
) {
dbg("magic 0x%08x(be)", magic);
goto found;
}
if ((magic == cpu_to_le32(UFS_MAGIC))
|| (magic == cpu_to_le32(UFS2_MAGIC))
|| (magic == cpu_to_le32(UFS_MAGIC_FEA))
|| (magic == cpu_to_le32(UFS_MAGIC_LFN))
) {
dbg("magic 0x%08x(le)", magic);
goto found;
}
}
return -1;
found:
// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
// id->type = "ufs";
return 0;
}