Adding upstream version 2.38.1.upstream/2.38.1upstream

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

1 files changed, 48 insertions, 0 deletions

diff --git a/libblkid/src/superblocks/vdo.c b/libblkid/src/superblocks/vdo.c
new file mode 100644
index 0000000..bec686f
--- /dev/null
+++ b/libblkid/src/superblocks/vdo.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 Red Hat, Inc.
+ *
+ * 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 "superblocks.h"
+
+struct vdo_super_block {
+	char magic[8];			/* magic number 'dmvdo001'*/
+	char unused[32];		/* 32 bytes of unimportant space */
+	unsigned char sb_uuid[16];	/* vdo unique id */
+
+	/* this is not all... but enough for libblkid */
+} __attribute__((packed));
+
+static int probe_vdo(blkid_probe pr, const struct blkid_idmag *mag)
+{
+	struct vdo_super_block *vsb;
+
+	vsb = blkid_probe_get_sb(pr, mag, struct vdo_super_block);
+	if (!vsb)
+		return errno ? -errno : 1;
+
+	blkid_probe_set_uuid(pr, vsb->sb_uuid);
+	return 0;
+}
+
+const struct blkid_idinfo vdo_idinfo =
+{
+	.name		= "vdo",
+	.usage		= BLKID_USAGE_OTHER,
+	.probefunc	= probe_vdo,
+	.magics		=
+	{
+		{ .magic = "dmvdo001", .len = 8 },
+		{ NULL }
+	}
+};