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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/sysv.c
First version in git
Diffstat (limited to 'src/sysv.c')
-rw-r--r--src/sysv.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/src/sysv.c b/src/sysv.c
new file mode 100644
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--- /dev/null
+++ b/src/sysv.c
@@ -0,0 +1,130 @@
+/*
+
+ File: sysv.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 "sysv.h"
+#include "fnctdsk.h"
+#include "log.h"
+
+#define SYSV4_SECTOR_SIZE 512
+#define SYSV4_SBLOCK 8192
+#define SYSV4_MAGIC 0x00011954
+#define SYSV4_CIGAM 0x54190100 /* byteswapped MAGIC */
+
+
+/* HP specific MAGIC values */
+
+#define SYSV4_MAGIC_LFN 0x00095014 /* fs supports filenames > 14 chars */
+#define SYSV4_CIGAM_LFN 0x14500900 /* srahc 41 < semanelif stroppus sf */
+
+#define SYSV4_MAGIC_SEC 0x00612195 /* B1 security fs */
+#define SYSV4_CIGAM_SEC 0x95216100
+
+#define SYSV4_MAGIC_FEA 0x00195612 /* fs_featurebits supported */
+#define SYSV4_CIGAM_FEA 0x12561900
+
+#define SYSV4_MAGIC_4GB 0x05231994 /* fs > 4 GB && fs_featurebits */
+#define SYSV4_CIGAM_4GB 0x94192305
+
+
+static int set_sysv4_info(const disk_t *disk_car, const struct sysv4_super_block *sbd,partition_t *partition, const int verbose, const int dump_ind);
+static int test_sysv4(const disk_t *disk_car, const struct sysv4_super_block *sbd,partition_t *partition,const int verbose, const int dump_ind);
+
+int check_sysv(disk_t *disk_car,partition_t *partition,const int verbose)
+{
+ unsigned char *buffer=(unsigned char*)MALLOC(SYSV4_SECTOR_SIZE);
+ if(disk_car->read(disk_car,SYSV4_SECTOR_SIZE, buffer, partition->part_offset+0x200)!=0)
+ {
+ free(buffer);
+ return 1;
+ }
+ if(test_sysv4(disk_car,(const struct sysv4_super_block *)buffer,partition,verbose,0)==0)
+ {
+ set_sysv4_info(disk_car,(const struct sysv4_super_block *)buffer,partition,verbose,0);
+ free(buffer);
+ return 0;
+ }
+ free(buffer);
+ return 1;
+}
+
+static int test_sysv4(const disk_t *disk_car, const struct sysv4_super_block *sbd,partition_t *partition,const int verbose, const int dump_ind)
+{
+ if ((sbd->s_magic== le32(0xfd187e20))||(sbd->s_magic== be32(0xfd187e20)))
+ {
+ partition->upart_type = UP_SYSV4;
+ }
+ else
+ return 1;
+ if(verbose>0)
+ log_info("\nSYSV4 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_sysv(disk_t *disk_car, const struct sysv4_super_block *sbd, partition_t *partition,const int verbose, const int dump_ind)
+{
+ if(test_sysv4(disk_car,sbd,partition,verbose,dump_ind)==0)
+ {
+ if(verbose>0 || dump_ind!=0)
+ {
+ log_info("\nrecover_sysv4\n");
+ if(dump_ind!=0)
+ {
+ dump_log(sbd,sizeof(*sbd));
+ }
+ }
+ switch(sbd->s_magic)
+ {
+ case le32(0xfd187e20):
+ partition->part_size = (uint64_t)le32(sbd->s_fsize)*(512<<(le32(sbd->s_type)-1));
+ break;
+ case be32(0xfd187e20):
+ partition->part_size = (uint64_t)be32(sbd->s_fsize)*(512<<(be32(sbd->s_type)-1));
+ break;
+ }
+ set_sysv4_info(disk_car,sbd,partition,verbose,dump_ind);
+ partition->part_type_i386 = P_SYSV;
+ return 0;
+ }
+ return 1;
+}
+
+static int set_sysv4_info(const disk_t *disk_car,const struct sysv4_super_block *sbd,partition_t *partition, const int verbose, const int dump_ind)
+{
+ strncpy(partition->info,"SysV4",sizeof(partition->info));
+ set_part_name(partition,sbd->s_fname,sizeof(sbd->s_fname));
+ return 0;
+}