First version in git

1 files changed, 119 insertions, 0 deletions

diff --git a/src/jfs.c b/src/jfs.c
new file mode 100644
index 0000000..2ec8409
--- /dev/null
+++ b/src/jfs.c
@@ -0,0 +1,119 @@
+/*
+
+    File: jfs.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
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include "types.h"
+#include "common.h"
+#include "jfs_superblock.h"
+#include "jfs.h"
+#include "fnctdsk.h"
+#include "log.h"
+#include "guid_cpy.h"
+
+static int test_JFS(disk_t *disk_car, const struct jfs_superblock *sb,partition_t *partition,const int verbose, const int dump_ind);
+
+int check_JFS(disk_t *disk_car,partition_t *partition,const int verbose)
+{
+  unsigned char *buffer=(unsigned char*)MALLOC(JFS_SUPERBLOCK_SIZE);
+  if(disk_car->read(disk_car,JFS_SUPERBLOCK_SIZE, buffer, partition->part_offset+64*512)!=0)
+  {
+    free(buffer);
+    return 1;
+  }
+  if(test_JFS(disk_car,(struct jfs_superblock*)buffer,partition,verbose,0)!=0)
+  {
+    free(buffer);
+    return 1;
+  }
+  set_JFS_info(disk_car,(struct jfs_superblock*)buffer,partition,verbose,0);
+  free(buffer);
+  return 0;
+}
+
+int set_JFS_info(disk_t *disk_car, const struct jfs_superblock *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+  snprintf(partition->info,sizeof(partition->info),"JFS %u",(unsigned int)le32(sb->s_version));
+  partition->fsname[0]='\0';
+  if(le32(sb->s_version)==1)
+  {
+    set_part_name(partition,sb->s_fpack,11);
+  }
+  return 0;
+}
+
+/*
+Primary superblock is at 0x8000
+*/
+int recover_JFS(disk_t *disk_car, const struct jfs_superblock *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+  if(test_JFS(disk_car,sb,partition,verbose,dump_ind)!=0)
+    return 1;
+  set_JFS_info(disk_car,sb,partition,verbose,dump_ind);
+  partition->part_type_i386=P_LINUX;
+  partition->part_type_sun=PSUN_LINUX;
+  partition->part_type_mac=PMAC_LINUX;
+  partition->part_type_gpt=GPT_ENT_TYPE_LINUX_DATA;
+  partition->part_size=(uint64_t)le32(sb->s_pbsize) * le64(sb->s_size) +
+    le32(sb->s_bsize) * (le24(sb->s_fsckpxd.len)+le24(sb->s_logpxd.len));
+  partition->boot_sector=0;
+  partition->blocksize=le32(sb->s_bsize);
+  guid_cpy(&partition->part_uuid, (const efi_guid_t *)&sb->s_uuid);
+  if(verbose>0)
+  {
+    log_info("\n");
+    log_info("recover_JFS: s_blocksize=%lu\n",partition->blocksize);
+    log_info("recover_JFS: s_size %lu\n",(long unsigned int)le64(sb->s_size));
+    log_info("recover_JFS: s_fsckpxd.len:%d\n", (int)le24(sb->s_fsckpxd.len));
+    log_info("recover_JFS: s_logpxd.len:%d\n", (int)le24(sb->s_logpxd.len));
+    log_info("recover_JFS: part_size %lu\n",(long unsigned)(partition->part_size/disk_car->sector_size));
+  }
+  return 0;
+}
+
+static int test_JFS(disk_t *disk_car, const struct jfs_superblock *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+  if(memcmp(sb->s_magic,"JFS1",4)!=0)
+    return 1;
+  if(dump_ind!=0)
+  {
+    log_info("\nJFS magic value at %u/%u/%u\n", offset2cylinder(disk_car,partition->part_offset),offset2head(disk_car,partition->part_offset),offset2sector(disk_car,partition->part_offset));
+    /* There is a little offset ... */
+    dump_log(sb,DEFAULT_SECTOR_SIZE);
+  }
+  /*
+  if( le32(sb->s_agsize) >= (1 << L2BPERDMAP) ) {
+    return 2;
+  }
+  if(partition->part_size!=0 && (partition->part_size<le64(sb->s_size)))
+    return 8;
+    */
+  partition->upart_type=UP_JFS;
+  return 0;
+}