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parted/parted-btrfs-support.patch
Petr Uzel 7c420fbb6e - fix hybrid pMBR (gpt_sync_mbr) on BE systems (bnc#809205) 
- parted-fix-gpt-sync-on-BE-systems.patch 
- detect btrfs filesystem (bnc#810779)
  - parted-btrfs-support.patch

OBS-URL: https://build.opensuse.org/package/show/Base:System/parted?expand=0&rev=73
2013-04-22 15:17:19 +00:00

216 lines
6.1 KiB
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commit 85e5fcd1bb0fe91d8908e8a638e9827979b6feff
Author: Luca Bruno <lucab@debian.org>
Date: Thu Feb 12 15:15:30 2009 +0100
Initial btrfs support, only recognize it for now
Add initial btrfs support to libparted; just discovering
the declared magic entry at the right place to recognize
filesystem type, for the moment.
Signed-off-by: Luca Bruno <lucab@debian.org>
---
configure.ac | 4 -
libparted/fs/Makefile.am | 3 -
libparted/fs/btrfs/Makefile.am | 8 ++
libparted/fs/btrfs/btrfs.c | 110 +++++++++++++++++++++++++++++++++++++++++
libparted/libparted.c | 4 +
5 files changed, 126 insertions(+), 3 deletions(-)
Index: parted-2.4/configure.ac
===================================================================
@@ -626,6 +625,7 @@ libparted/Makefile
libparted/labels/Makefile
libparted/fs/Makefile
libparted/fs/amiga/Makefile
+libparted/fs/btrfs/Makefile
libparted/fs/ext2/Makefile
libparted/fs/fat/Makefile
libparted/fs/hfs/Makefile
Index: parted-2.4/libparted/fs/Makefile.am
===================================================================
--- parted-2.4.orig/libparted/fs/Makefile.am
+++ parted-2.4/libparted/fs/Makefile.am
@@ -4,7 +4,7 @@
# This file may be modified and/or distributed without restriction.
SUBDIRS = amiga ext2 ufs fat ntfs hfs linux_swap xfs jfs reiserfs \
- nilfs2 # bfs
+ nilfs2 btrfs # bfs
partedincludedir = -I$(top_srcdir)/include
noinst_LTLIBRARIES = libfs.la
@@ -25,6 +25,7 @@ libfs_la_LIBADD = $(UUID_LIBS) \
xfs/libxfs.la \
jfs/libjfs.la \
reiserfs/libreiserfs.la \
+ btrfs/libbtrfs.la \
nilfs2/libnilfs2.la
# bfs/libbfs.la
Index: parted-2.4/libparted/fs/btrfs/Makefile.am
===================================================================
--- /dev/null
+++ parted-2.4/libparted/fs/btrfs/Makefile.am
@@ -0,0 +1,8 @@
+partedincludedir = -I$(top_srcdir)/include
+
+noinst_LTLIBRARIES = libbtrfs.la
+libbtrfs_la_SOURCES = btrfs.c
+
+INCLUDES = $(partedincludedir) $(INTLINCS)
+
+MAINTAINERCLEANFILES = Makefile.in
Index: parted-2.4/libparted/fs/btrfs/btrfs.c
===================================================================
--- /dev/null
+++ parted-2.4/libparted/fs/btrfs/btrfs.c
@@ -0,0 +1,110 @@
+/*
+ libparted - a library for manipulating disk partitions
+ Copyright (C) 2009 Free Software Foundation, Inc.
+
+ This program 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 3 of the License, or
+ (at your option) any later version.
+
+ This program 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#include <parted/parted.h>
+#include <parted/endian.h>
+
+#if ENABLE_NLS
+# include <libintl.h>
+# define _(String) dgettext (PACKAGE, String)
+#else
+# define _(String) (String)
+#endif /* ENABLE_NLS */
+
+#include <unistd.h>
+
+#define BTRFS_BLOCK_SIZES ((int[2]){1024, 0})
+#define BTRFS_SUPER_INFO_SIZE 4096
+#define BTRFS_SUPER_INFO_OFFSET (64 * 1024)
+
+//Should be definitive, as of v0.18
+#define BTRFS_SIGNATURE 0x4D5F53665248425F
+
+static PedGeometry*
+btrfs_probe (PedGeometry* geom)
+{
+ char buf[BTRFS_SUPER_INFO_SIZE];
+
+ uint64_t magic;
+
+ if (!ped_geometry_read (geom, buf,
+ (BTRFS_SUPER_INFO_OFFSET / 512),
+ (BTRFS_SUPER_INFO_SIZE / 512)))
+ return 0;
+
+ memcpy(&magic, buf + 64, sizeof(uint64_t));
+
+ if (magic == PED_CPU_TO_LE64(BTRFS_SIGNATURE))
+ return ped_geometry_new (geom->dev, geom->start, geom->length);
+ else
+ return NULL;
+}
+
+#ifndef DISCOVER_ONLY
+static int
+btrfs_clobber (PedGeometry* geom)
+{
+ char buf[BTRFS_SUPER_INFO_SIZE];
+
+ memset (buf, 0, BTRFS_SUPER_INFO_SIZE);
+ return ped_geometry_write (geom, buf,
+ (BTRFS_SUPER_INFO_OFFSET / 512),
+ (BTRFS_SUPER_INFO_SIZE / 512));
+}
+#endif /* !DISCOVER_ONLY */
+
+static PedFileSystemOps btrfs_ops = {
+ probe: btrfs_probe,
+#ifndef DISCOVER_ONLY
+ clobber: btrfs_clobber,
+#else
+ clobber: NULL,
+#endif
+ open: NULL,
+ create: NULL,
+ close: NULL,
+ check: NULL,
+ copy: NULL,
+ resize: NULL,
+ get_create_constraint: NULL,
+ get_resize_constraint: NULL,
+ get_copy_constraint: NULL
+};
+
+static PedFileSystemType btrfs_type = {
+ next: NULL,
+ ops: &btrfs_ops,
+ name: "btrfs",
+ block_sizes: BTRFS_BLOCK_SIZES
+};
+
+void
+ped_file_system_btrfs_init ()
+{
+ ped_file_system_type_register (&btrfs_type);
+}
+
+void
+ped_file_system_btrfs_done ()
+{
+ ped_file_system_type_unregister (&btrfs_type);
+}
+
+
Index: parted-2.4/libparted/libparted.c
===================================================================
--- parted-2.4.orig/libparted/libparted.c
+++ parted-2.4/libparted/libparted.c
@@ -110,6 +110,7 @@ extern void ped_file_system_hfs_init (vo
extern void ped_file_system_fat_init (void);
extern void ped_file_system_ext2_init (void);
extern void ped_file_system_nilfs2_init (void);
+extern void ped_file_system_btrfs_init (void);
static void
init_file_system_types ()
@@ -125,6 +126,7 @@ init_file_system_types ()
ped_file_system_fat_init ();
ped_file_system_ext2_init ();
ped_file_system_nilfs2_init ();
+ ped_file_system_btrfs_init ();
}
#endif /* ENABLE_FS */
@@ -191,6 +193,7 @@ extern void ped_file_system_ntfs_done (v
extern void ped_file_system_reiserfs_done (void);
extern void ped_file_system_ufs_done (void);
extern void ped_file_system_xfs_done (void);
+extern void ped_file_system_btrfs_done (void);
extern void ped_file_system_amiga_done (void);
static void
@@ -206,6 +209,7 @@ done_file_system_types ()
ped_file_system_reiserfs_done ();
ped_file_system_ufs_done ();
ped_file_system_xfs_done ();
+ ped_file_system_btrfs_done ();
ped_file_system_amiga_done ();
}
#endif /* ENABLE_FS */
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