Imported Upstream version 2.22upstream/2.22upstream

1 files changed, 85 insertions, 0 deletions

diff --git a/libblkid/src/superblocks/silicon_raid.c b/libblkid/src/superblocks/silicon_raid.c
new file mode 100644
index 0000000..fef5801
--- /dev/null
+++ b/libblkid/src/superblocks/silicon_raid.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * 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 <errno.h>
+#include <ctype.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#include "superblocks.h"
+
+struct silicon_metadata {
+	uint8_t		unknown0[0x2E];
+	uint8_t		ascii_version[0x36 - 0x2E];
+	uint8_t		diskname[0x56 - 0x36];
+	uint8_t		unknown1[0x60 - 0x56];
+	uint32_t	magic;
+	uint32_t	unknown1a[0x6C - 0x64];
+	uint32_t	array_sectors_low;
+	uint32_t	array_sectors_high;
+	uint8_t		unknown2[0x78 - 0x74];
+	uint32_t	thisdisk_sectors;
+	uint8_t		unknown3[0x100 - 0x7C];
+	uint8_t		unknown4[0x104 - 0x100];
+	uint16_t	product_id;
+	uint16_t	vendor_id;
+	uint16_t	minor_ver;
+	uint16_t	major_ver;
+} __attribute__((packed));
+
+#define SILICON_MAGIC		0x2F000000
+
+
+static int probe_silraid(blkid_probe pr,
+		const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+	uint64_t off;
+	struct silicon_metadata *sil;
+
+	if (pr->size < 0x10000)
+		return -1;
+	if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
+		return -1;
+
+	off = ((pr->size / 0x200) - 1) * 0x200;
+
+	sil = (struct silicon_metadata *)
+			blkid_probe_get_buffer(pr, off,
+				sizeof(struct silicon_metadata));
+	if (!sil)
+		return -1;
+
+	if (le32_to_cpu(sil->magic) != SILICON_MAGIC)
+		return -1;
+
+	if (blkid_probe_sprintf_version(pr, "%u.%u",
+				le16_to_cpu(sil->major_ver),
+				le16_to_cpu(sil->minor_ver)) != 0)
+		return -1;
+	if (blkid_probe_set_magic(pr,
+			off + offsetof(struct silicon_metadata, magic),
+			sizeof(sil->magic),
+			(unsigned char *) &sil->magic))
+		return -1;
+	return 0;
+}
+
+const struct blkid_idinfo silraid_idinfo = {
+	.name		= "silicon_medley_raid_member",
+	.usage		= BLKID_USAGE_RAID,
+	.probefunc	= probe_silraid,
+	.magics		= BLKID_NONE_MAGIC
+};
+
+