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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/luks.c
First version in git
Diffstat (limited to 'src/luks.c')
-rw-r--r--src/luks.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/src/luks.c b/src/luks.c
new file mode 100644
index 0000000..bc41574
--- /dev/null
+++ b/src/luks.c
@@ -0,0 +1,107 @@
+/*
+
+ File: luks.c
+
+ Copyright (C) 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 <stdio.h>
+#include "types.h"
+#include "common.h"
+#include "luks.h"
+#include "fnctdsk.h"
+#include "log.h"
+#include "guid_cpy.h"
+
+static int test_LUKS(disk_t *disk_car, const struct luks_phdr *sb,partition_t *partition,const int verbose, const int dump_ind);
+static int set_LUKS_info(disk_t *disk_car, const struct luks_phdr *sb,partition_t *partition,const int verbose, const int dump_ind);
+static const uint8_t LUKS_MAGIC[LUKS_MAGIC_L] = {'L','U','K','S', 0xba, 0xbe};
+
+int check_LUKS(disk_t *disk_car,partition_t *partition,const int verbose)
+{
+ unsigned char *buffer=(unsigned char*)MALLOC(DEFAULT_SECTOR_SIZE);
+ if(disk_car->read(disk_car,DEFAULT_SECTOR_SIZE, buffer, partition->part_offset)!=0)
+ {
+ free(buffer);
+ return 1;
+ }
+ if(test_LUKS(disk_car,(struct luks_phdr*)buffer,partition,verbose,0)!=0)
+ {
+ free(buffer);
+ return 1;
+ }
+ set_LUKS_info(disk_car,(struct luks_phdr*)buffer,partition,verbose,0);
+ free(buffer);
+ return 0;
+}
+
+static int set_LUKS_info(disk_t *disk_car, const struct luks_phdr *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+ sprintf(partition->info,"LUKS %u (Data size unknown)",be16(sb->version));
+ return 0;
+}
+
+int recover_LUKS(disk_t *disk_car, const struct luks_phdr *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+ if(test_LUKS(disk_car,sb,partition,verbose,dump_ind)!=0)
+ return 1;
+ if(partition==NULL)
+ return 0;
+ set_LUKS_info(disk_car,sb,partition,verbose,dump_ind);
+ 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;
+ partition->part_size=(uint64_t)be32(sb->payloadOffset)*disk_car->sector_size;
+ partition->blocksize=0;
+ partition->boot_sector=0;
+ /* sb->uuid is bigger than part_uuid */
+ guid_cpy(&partition->part_uuid, (const efi_guid_t *)&sb->uuid);
+ if(verbose>0)
+ {
+ log_info("\n");
+ }
+ return 0;
+}
+
+static int test_LUKS(disk_t *disk_car, const struct luks_phdr *sb,partition_t *partition,const int verbose, const int dump_ind)
+{
+ if(memcmp(sb->magic,LUKS_MAGIC,LUKS_MAGIC_L)!=0)
+ return 1;
+ if(dump_ind!=0)
+ {
+ if(partition!=NULL && disk_car!=NULL)
+ log_info("\nLUKS 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));
+ dump_log(sb,DEFAULT_SECTOR_SIZE);
+ }
+ if(partition==NULL)
+ return 0;
+ partition->upart_type=UP_LUKS;
+ return 0;
+}