From 15fe4400e9e610150d172658555e9e8ff8693192 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Thu, 18 Sep 2008 13:23:56 +0200
Subject: [PATCH] blkid: add xfs

Signed-off-by: Karel Zak <kzak@redhat.com>
---
 libs/blkid/src/probe.c             |  1 +
 libs/blkid/src/probers/Makefile.am |  1 +
 libs/blkid/src/probers/probers.h   |  1 +
 libs/blkid/src/probers/xfs.c       | 69 ++++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+)
 create mode 100644 libs/blkid/src/probers/xfs.c

diff --git a/libs/blkid/src/probe.c b/libs/blkid/src/probe.c
index b76eabae..bbcc8be5 100644
--- a/libs/blkid/src/probe.c
+++ b/libs/blkid/src/probe.c
@@ -53,6 +53,7 @@ static const struct blkid_idinfo *idinfos[] =
 	&ext4_idinfo,
 	&ext3_idinfo,
 	&ext2_idinfo,
+	&xfs_idinfo,
 	&jfs_idinfo,
 	&jbd_idinfo
 };
diff --git a/libs/blkid/src/probers/Makefile.am b/libs/blkid/src/probers/Makefile.am
index 7f8e04e4..1d36c269 100644
--- a/libs/blkid/src/probers/Makefile.am
+++ b/libs/blkid/src/probers/Makefile.am
@@ -18,6 +18,7 @@ libprobers_a_SOURCES =	probers.h \
 			via_raid.c \
 			linux_raid.c \
 			jfs.c \
+			xfs.c \
 			ext.c
 
 all-local: $(lib_LIBRARIES)
diff --git a/libs/blkid/src/probers/probers.h b/libs/blkid/src/probers/probers.h
index ff3ea3d8..ba4bab7b 100644
--- a/libs/blkid/src/probers/probers.h
+++ b/libs/blkid/src/probers/probers.h
@@ -34,5 +34,6 @@ extern const struct blkid_idinfo ext3_idinfo;
 extern const struct blkid_idinfo ext2_idinfo;
 extern const struct blkid_idinfo jbd_idinfo;
 extern const struct blkid_idinfo jfs_idinfo;
+extern const struct blkid_idinfo xfs_idinfo;
 
 #endif /* _BLKID_PROBE_H */
diff --git a/libs/blkid/src/probers/xfs.c b/libs/blkid/src/probers/xfs.c
new file mode 100644
index 00000000..47ca31a7
--- /dev/null
+++ b/libs/blkid/src/probers/xfs.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 1999 by Andries Brouwer
+ * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
+ * Copyright (C) 2001 by Andreas Dilger
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <stdint.h>
+
+#include "blkidP.h"
+
+struct xfs_super_block {
+	unsigned char	xs_magic[4];
+	uint32_t	xs_blocksize;
+	uint64_t	xs_dblocks;
+	uint64_t	xs_rblocks;
+	uint32_t	xs_dummy1[2];
+	unsigned char	xs_uuid[16];
+	uint32_t	xs_dummy2[15];
+	char		xs_fname[12];
+	uint32_t	xs_dummy3[2];
+	uint64_t	xs_icount;
+	uint64_t	xs_ifree;
+	uint64_t	xs_fdblocks;
+};
+
+static int probe_xfs(blkid_probe pr, const struct blkid_idmag *mag)
+{
+	struct xfs_super_block *xs;
+
+	xs = blkid_probe_get_sb(pr, mag, struct xfs_super_block);
+	if (!xs)
+		return -1;
+
+	if (strlen(xs->xs_fname))
+		blkid_probe_set_label(pr, xs->xs_fname, sizeof(xs->xs_fname));
+	blkid_probe_set_uuid(pr, xs->xs_uuid);
+	return 0;
+}
+
+const struct blkid_idinfo xfs_idinfo =
+{
+	.name		= "xfs",
+	.usage		= BLKID_USAGE_FILESYSTEM,
+	.probefunc	= probe_xfs,
+	.magics		=
+	{
+		{ .magic = "XFSB", .len = 4 },
+		{ NULL }
+	}
+};
+
-- 
2.39.5