volume_id: rename subdirectory

1 files changed, 210 insertions, 0 deletions

diff --git a/extras/volume_id/lib/ufs.c b/extras/volume_id/lib/ufs.c
new file mode 100644
index 0000000000..d3960b1bec
--- /dev/null
+++ b/extras/volume_id/lib/ufs.c
@@ -0,0 +1,210 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *	This program is free software; you can redistribute it and/or modify it
+ *	under the terms of the GNU General Public License as published by the
+ *	Free Software Foundation version 2 of the License.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "libvolume_id.h"
+#include "util.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 volume_id_probe_ufs(struct volume_id *id, uint64_t off)
+{
+	uint32_t magic;
+	int i;
+	struct ufs_super_block *ufs;
+	int offsets[] = {0, 8, 64, 256, -1};
+
+	dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+	for (i = 0; offsets[i] >= 0; i++) {	
+		ufs = (struct ufs_super_block *) volume_id_get_buffer(id, off + (offsets[i] * 0x400), 0x800);
+		if (ufs == NULL)
+			return -1;
+
+		dbg("offset 0x%x", offsets[i] * 0x400);
+		magic = be32_to_cpu(ufs->fs_magic);
+		if ((magic == UFS_MAGIC) ||
+		    (magic == UFS2_MAGIC) ||
+		    (magic == UFS_MAGIC_FEA) ||
+		    (magic == UFS_MAGIC_LFN)) {
+			dbg("magic 0x%08x(be)", magic);
+			goto found;
+		}
+		magic = le32_to_cpu(ufs->fs_magic);
+		if ((magic == UFS_MAGIC) ||
+		    (magic == UFS2_MAGIC) ||
+		    (magic == UFS_MAGIC_FEA) ||
+		    (magic == 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;
+}