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authorChristophe Grenier <grenier@cgsecurity.org>2007-10-29 22:38:52 +0100
committerChristophe Grenier <grenier@cgsecurity.org>2007-10-29 22:38:52 +0100
commit9928d99936105b4653d2d1b8ca74dc3ffba5c71e (patch)
tree06aa4f5e9f0055027c6fb54dd47a8414cf2fba32 /src/xfs.c
First version in git
Diffstat (limited to 'src/xfs.c')
-rw-r--r--src/xfs.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/src/xfs.c b/src/xfs.c
new file mode 100644
index 0000000..e7149e2
--- /dev/null
+++ b/src/xfs.c
@@ -0,0 +1,138 @@
+/*
+
+ File: xfs.c
+
+ Copyright (C) 2004-2007 Christophe GRENIER <grenier@cgsecurity.org>
+
+ This software 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 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, write the Free Software Foundation, Inc., 51
+ Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include "types.h"
+#include "common.h"
+#include "xfs.h"
+#include "fnctdsk.h"
+#include "log.h"
+#include "guid_cpy.h"
+
+static int set_xfs_info(const disk_t *disk_car, const struct xfs_sb *sb,partition_t *partition, const int verbose, const int dump_ind);
+static int test_xfs(const disk_t *disk_car, const struct xfs_sb *sb,partition_t *partition,const int verbose, const int dump_ind);
+
+int check_xfs(disk_t *disk_car,partition_t *partition,const int verbose)
+{
+ unsigned char *buffer=(unsigned char*)MALLOC(XFS_SUPERBLOCK_SIZE);
+ if(disk_car->read(disk_car,XFS_SUPERBLOCK_SIZE, buffer, partition->part_offset)!=0)
+ {
+ free(buffer);
+ return 1;
+ }
+ if(test_xfs(disk_car,(struct xfs_sb*)buffer,partition,verbose,0)!=0)
+ {
+ free(buffer);
+ return 1;
+ }
+ set_xfs_info(disk_car,(struct xfs_sb*)buffer,partition,verbose,0);
+ free(buffer);
+ return 0;
+}
+
+static int test_xfs(const disk_t *disk_car, const struct xfs_sb *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+ if (sb->sb_magicnum==be32(XFS_SB_MAGIC))
+ {
+ switch(be16(sb->sb_versionnum) & XFS_SB_VERSION_NUMBITS)
+ {
+ case XFS_SB_VERSION_1:
+ partition->upart_type = UP_XFS;
+ break;
+ case XFS_SB_VERSION_2:
+ partition->upart_type = UP_XFS2;
+ break;
+ case XFS_SB_VERSION_3:
+ partition->upart_type = UP_XFS3;
+ break;
+ case XFS_SB_VERSION_4:
+ partition->upart_type = UP_XFS4;
+ break;
+ default:
+ log_error("Unknown XFS version %x\n",be16(sb->sb_versionnum)& XFS_SB_VERSION_NUMBITS);
+ partition->upart_type = UP_XFS4;
+ break;
+ }
+ }
+ else
+ return 1;
+ if(verbose>0)
+ log_info("\nXFS Marker at %u/%u/%u\n", offset2cylinder(disk_car,partition->part_offset),offset2head(disk_car,partition->part_offset),offset2sector(disk_car,partition->part_offset));
+ return 0;
+}
+
+int recover_xfs(disk_t *disk_car, const struct xfs_sb *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+ if(test_xfs(disk_car,sb,partition,verbose,dump_ind)!=0)
+ return 1;
+ if(verbose>0 || dump_ind!=0)
+ {
+ log_info("\nrecover_xfs\n");
+ if(dump_ind!=0)
+ {
+ dump_log(sb,DEFAULT_SECTOR_SIZE);
+ }
+ }
+
+ partition->part_size = (uint64_t)be64(sb->sb_dblocks) * be32(sb->sb_blocksize);
+ partition->part_type_i386=P_LINUX;
+ partition->part_type_mac=PMAC_LINUX;
+ partition->part_type_sun=PSUN_LINUX;
+ partition->part_type_gpt=GPT_ENT_TYPE_LINUX_DATA;
+ set_xfs_info(disk_car,sb,partition,verbose,dump_ind);
+ guid_cpy(&partition->part_uuid, (const efi_guid_t *)&sb->sb_uuid);
+ return 0;
+}
+
+static int set_xfs_info(const disk_t *disk_car,const struct xfs_sb *sb,partition_t *partition, const int verbose, const int dump_ind)
+{
+ partition->fsname[0]='\0';
+ partition->info[0]='\0';
+ switch(partition->upart_type)
+ {
+ case UP_XFS:
+ strncpy(partition->info,"XFS <=6.1",sizeof(partition->info));
+ break;
+ case UP_XFS2:
+ strncpy(partition->info,"XFS 6.2 - attributes",sizeof(partition->info));
+ break;
+ case UP_XFS3:
+ strncpy(partition->info,"XFS 6.2 - new inode version",sizeof(partition->info));
+ break;
+ case UP_XFS4:
+ strncpy(partition->info,"XFS 6.2+ - bitmap version",sizeof(partition->info));
+ break;
+ default:
+ return 1;
+ }
+ set_part_name(partition,sb->sb_fname,12);
+ return 0;
+}