207 lines
5.1 KiB
C
207 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
|
|
*/
|
|
|
|
#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;
|
|
} __attribute__((__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];
|
|
} __attribute__((__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];
|
|
} __attribute__((__packed__)) fs_cstotal;
|
|
struct ufs_timeval {
|
|
int32_t tv_sec;
|
|
int32_t tv_usec;
|
|
} __attribute__((__packed__)) fs_time;
|
|
int64_t fs_size;
|
|
int64_t fs_dsize;
|
|
uint64_t fs_csaddr;
|
|
int64_t fs_pendingblocks;
|
|
int32_t fs_pendinginodes;
|
|
} __attribute__((__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];
|
|
} __attribute__((__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];
|
|
} __attribute__((__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;
|
|
} __attribute__((__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];
|
|
} __attribute__((__packed__));
|
|
|
|
#define UFS_MAGIC 0x00011954
|
|
#define UFS2_MAGIC 0x19540119
|
|
#define UFS_MAGIC_FEA 0x00195612
|
|
#define UFS_MAGIC_LFN 0x00095014
|
|
|
|
int volume_id_probe_ufs(struct volume_id *id, uint64_t off)
|
|
{
|
|
static const short offsets[] = { 0, 8, 64, 256 };
|
|
|
|
uint32_t magic;
|
|
int 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;
|
|
}
|