Adding upstream version 2.33.1.upstream/2.33.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/libblkid/src/superblocks/isw_raid.c b/libblkid/src/superblocks/isw_raid.c
new file mode 100644
index 0000000..81d53a1
--- /dev/null
+++ b/libblkid/src/superblocks/isw_raid.c
@@ -0,0 +1,67 @@
+/*
+ * 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 isw_metadata {
+	uint8_t		sig[32];
+	uint32_t	check_sum;
+	uint32_t	mpb_size;
+	uint32_t	family_num;
+	uint32_t	generation_num;
+};
+
+#define ISW_SIGNATURE		"Intel Raid ISM Cfg Sig. "
+
+static int probe_iswraid(blkid_probe pr,
+		const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+	uint64_t off;
+	unsigned int sector_size;
+	struct isw_metadata *isw;
+
+	if (pr->size < 0x10000)
+		return 1;
+	if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
+		return 1;
+
+	sector_size = blkid_probe_get_sectorsize(pr);
+	off = ((pr->size / sector_size) - 2) * sector_size;
+
+	isw = (struct isw_metadata *)blkid_probe_get_buffer(pr,
+			off, sizeof(struct isw_metadata));
+	if (!isw)
+		return errno ? -errno : 1;
+
+	if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0)
+		return 1;
+
+	if (blkid_probe_sprintf_version(pr, "%6s",
+			&isw->sig[sizeof(ISW_SIGNATURE)-1]) != 0)
+		return 1;
+	if (blkid_probe_set_magic(pr, off, sizeof(isw->sig),
+				(unsigned char *) isw->sig))
+		return 1;
+	return 0;
+}
+
+const struct blkid_idinfo iswraid_idinfo = {
+	.name		= "isw_raid_member",
+	.usage		= BLKID_USAGE_RAID,
+	.probefunc	= probe_iswraid,
+	.magics		= BLKID_NONE_MAGIC
+};
+
+