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- /*
- * 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;
- } 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;
- }
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