1 files changed, 213 insertions, 0 deletions

diff --git a/libblkid/ocfs.c b/libblkid/ocfs.c
new file mode 100644
index 000000000..82170ace1
--- /dev/null
+++ b/libblkid/ocfs.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 1999, 2001 by Andries Brouwer
+ * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "superblocks.h"
+
+struct ocfs_volume_header {
+	unsigned char	minor_version[4];
+	unsigned char	major_version[4];
+	unsigned char	signature[128];
+	char		mount[128];
+	unsigned char   mount_len[2];
+} __attribute__((packed));
+
+struct ocfs_volume_label {
+	unsigned char	disk_lock[48];
+	char		label[64];
+	unsigned char	label_len[2];
+	unsigned char   vol_id[16];
+	unsigned char   vol_id_len[2];
+} __attribute__((packed));
+
+#define ocfsmajor(o) ( (uint32_t) o.major_version[0] \
+                   + (((uint32_t) o.major_version[1]) << 8) \
+                   + (((uint32_t) o.major_version[2]) << 16) \
+                   + (((uint32_t) o.major_version[3]) << 24))
+
+#define ocfsminor(o) ( (uint32_t) o.minor_version[0] \
+                   + (((uint32_t) o.minor_version[1]) << 8) \
+                   + (((uint32_t) o.minor_version[2]) << 16) \
+                   + (((uint32_t) o.minor_version[3]) << 24))
+
+#define ocfslabellen(o)	((uint32_t)o.label_len[0] + (((uint32_t) o.label_len[1]) << 8))
+#define ocfsmountlen(o)	((uint32_t)o.mount_len[0] + (((uint32_t) o.mount_len[1]) << 8))
+
+struct ocfs2_super_block {
+	uint8_t		i_signature[8];
+	uint32_t	i_generation;
+	int16_t		i_suballoc_slot;
+	uint16_t	i_suballoc_bit;
+	uint32_t	i_reserved0;
+	uint32_t	i_clusters;
+	uint32_t	i_uid;
+	uint32_t	i_gid;
+	uint64_t	i_size;
+	uint16_t	i_mode;
+	uint16_t	i_links_count;
+	uint32_t	i_flags;
+	uint64_t	i_atime;
+	uint64_t	i_ctime;
+	uint64_t	i_mtime;
+	uint64_t	i_dtime;
+	uint64_t	i_blkno;
+	uint64_t	i_last_eb_blk;
+	uint32_t	i_fs_generation;
+	uint32_t	i_atime_nsec;
+	uint32_t	i_ctime_nsec;
+	uint32_t	i_mtime_nsec;
+	uint64_t	i_reserved1[9];
+	uint64_t	i_pad1;
+	uint16_t	s_major_rev_level;
+	uint16_t	s_minor_rev_level;
+	uint16_t	s_mnt_count;
+	int16_t		s_max_mnt_count;
+	uint16_t	s_state;
+	uint16_t	s_errors;
+	uint32_t	s_checkinterval;
+	uint64_t	s_lastcheck;
+	uint32_t	s_creator_os;
+	uint32_t	s_feature_compat;
+	uint32_t	s_feature_incompat;
+	uint32_t	s_feature_ro_compat;
+	uint64_t	s_root_blkno;
+	uint64_t	s_system_dir_blkno;
+	uint32_t	s_blocksize_bits;
+	uint32_t	s_clustersize_bits;
+	uint16_t	s_max_slots;
+	uint16_t	s_reserved1;
+	uint32_t	s_reserved2;
+	uint64_t	s_first_cluster_group;
+	uint8_t		s_label[64];
+	uint8_t		s_uuid[16];
+} __attribute__((packed));
+
+struct oracle_asm_disk_label {
+	char dummy[32];
+	char dl_tag[8];
+	char dl_id[24];
+} __attribute__((packed));
+
+static int probe_ocfs(blkid_probe pr, const struct blkid_idmag *mag)
+{
+	unsigned char *buf;
+	struct ocfs_volume_header ovh;
+	struct ocfs_volume_label ovl;
+	uint32_t maj, min;
+
+	/* header */
+	buf = blkid_probe_get_buffer(pr, mag->kboff << 10,
+			sizeof(struct ocfs_volume_header));
+	if (!buf)
+		return -1;
+	memcpy(&ovh, buf, sizeof(ovh));
+
+	/* label */
+	buf = blkid_probe_get_buffer(pr, (mag->kboff << 10) + 512,
+			sizeof(struct ocfs_volume_label));
+	if (!buf)
+		return -1;
+	memcpy(&ovl, buf, sizeof(ovl));
+
+	maj = ocfsmajor(ovh);
+	min = ocfsminor(ovh);
+
+	if (maj == 1)
+		blkid_probe_set_value(pr, "SEC_TYPE",
+				(unsigned char *) "ocfs1", sizeof("ocfs1"));
+	else if (maj >= 9)
+		blkid_probe_set_value(pr, "SEC_TYPE",
+				(unsigned char *) "ntocfs", sizeof("ntocfs"));
+
+	blkid_probe_set_label(pr, (unsigned char *) ovl.label,
+				ocfslabellen(ovl));
+	blkid_probe_set_value(pr, "MOUNT", (unsigned char *) ovh.mount,
+				ocfsmountlen(ovh));
+	blkid_probe_set_uuid(pr, ovl.vol_id);
+	blkid_probe_sprintf_version(pr, "%u.%u", maj, min);
+	return 0;
+}
+
+static int probe_ocfs2(blkid_probe pr, const struct blkid_idmag *mag)
+{
+	struct ocfs2_super_block *osb;
+
+	osb = blkid_probe_get_sb(pr, mag, struct ocfs2_super_block);
+	if (!osb)
+		return -1;
+
+	blkid_probe_set_label(pr, (unsigned char *) osb->s_label, sizeof(osb->s_label));
+	blkid_probe_set_uuid(pr, osb->s_uuid);
+
+	blkid_probe_sprintf_version(pr, "%u.%u",
+		le16_to_cpu(osb->s_major_rev_level),
+		le16_to_cpu(osb->s_minor_rev_level));
+
+	return 0;
+}
+
+static int probe_oracleasm(blkid_probe pr, const struct blkid_idmag *mag)
+{
+	struct oracle_asm_disk_label *dl;
+
+	dl = blkid_probe_get_sb(pr, mag, struct oracle_asm_disk_label);
+	if (!dl)
+		return -1;
+
+	blkid_probe_set_label(pr, (unsigned char *) dl->dl_id, sizeof(dl->dl_id));
+	return 0;
+}
+
+
+const struct blkid_idinfo ocfs_idinfo =
+{
+	.name		= "ocfs",
+	.usage		= BLKID_USAGE_FILESYSTEM,
+	.probefunc	= probe_ocfs,
+	.minsz		= 14000 * 1024,
+	.magics		=
+	{
+		{ .magic = "OracleCFS", .len = 9, .kboff = 8 },
+		{ NULL }
+	}
+};
+
+const struct blkid_idinfo ocfs2_idinfo =
+{
+	.name		= "ocfs2",
+	.usage		= BLKID_USAGE_FILESYSTEM,
+	.probefunc	= probe_ocfs2,
+	.minsz		= 14000 * 1024,
+	.magics		=
+	{
+		{ .magic = "OCFSV2", .len = 6, .kboff = 1 },
+		{ .magic = "OCFSV2", .len = 6, .kboff = 2 },
+		{ .magic = "OCFSV2", .len = 6, .kboff = 4 },
+		{ .magic = "OCFSV2", .len = 6, .kboff = 8 },
+		{ NULL }
+	}
+};
+
+/* Oracle ASM (Automatic Storage Management) */
+const struct blkid_idinfo oracleasm_idinfo =
+{
+	.name		= "oracleasm",
+	.usage		= BLKID_USAGE_FILESYSTEM,
+	.probefunc	= probe_oracleasm,
+	.magics		=
+	{
+		{ .magic = "ORCLDISK", .len = 8, .sboff = 32 },
+		{ NULL }
+	}
+};
+