1 files changed, 64 insertions, 0 deletions

diff --git a/libblkid/jmicron_raid.c b/libblkid/jmicron_raid.c
new file mode 100644
index 000000000..c7080780f
--- /dev/null
+++ b/libblkid/jmicron_raid.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * Inspired by libvolume_id by
+ *     Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * 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 jm_metadata {
+	int8_t		signature[2];
+	uint8_t		minor_version;
+	uint8_t		major_version;
+	uint16_t	checksum;
+};
+
+#define JM_SIGNATURE		"JM"
+
+static int probe_jmraid(blkid_probe pr,
+		const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+	uint64_t off;
+	struct jm_metadata *jm;
+
+	if (pr->size < 0x10000)
+		return -1;
+	if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
+		return -1;
+
+	off = ((pr->size / 0x200) - 1) * 0x200;
+	jm = (struct jm_metadata *)
+		blkid_probe_get_buffer(pr,
+				off,
+				sizeof(struct jm_metadata));
+	if (!jm)
+		return -1;
+	if (memcmp(jm->signature, JM_SIGNATURE, sizeof(JM_SIGNATURE) - 1) != 0)
+		return -1;
+	if (blkid_probe_sprintf_version(pr, "%u.%u",
+				jm->major_version, jm->minor_version) != 0)
+		return -1;
+	if (blkid_probe_set_magic(pr, off, sizeof(jm->signature),
+				(unsigned char *) jm->signature))
+		return -1;
+	return 0;
+}
+
+const struct blkid_idinfo jmraid_idinfo = {
+	.name		= "jmicron_raid_member",
+	.usage		= BLKID_USAGE_RAID,
+	.probefunc	= probe_jmraid,
+	.magics		= BLKID_NONE_MAGIC
+};
+
+