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authorChristophe Grenier <grenier@cgsecurity.org>2011-04-03 18:40:16 +0200
committerChristophe Grenier <grenier@cgsecurity.org>2011-04-03 18:40:16 +0200
commitb7c7a4fe3018aece1607237d4c42fe9749738a21 (patch)
tree8c31b7934650ba6bb220ab6f284eb422765ba74e /src/file_vault.c
parent12f3f3ce8da141e43e0c21fcf534bcafd0652630 (diff)
PhotoRec: recover McAfee Anti-Theft/FileVault .vault files
Diffstat (limited to 'src/file_vault.c')
-rw-r--r--src/file_vault.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/src/file_vault.c b/src/file_vault.c
new file mode 100644
index 0000000..f1e7eff
--- /dev/null
+++ b/src/file_vault.c
@@ -0,0 +1,92 @@
+/*
+
+ File: file_vault.c
+
+ Copyright (C) 2011 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_STRING_H
+#include <string.h>
+#endif
+#include <stdio.h>
+#include "types.h"
+#include "filegen.h"
+
+static void register_header_check_vault(file_stat_t *file_stat);
+static int header_check_vault(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new);
+
+const file_hint_t file_hint_vault= {
+ .extension="vault",
+ .description="McAfee Anti-Theft/FileVault",
+ .min_header_distance=0,
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_vault
+};
+
+static const unsigned char vault_header[0x12]= {
+ 'S' , 'a' , 'f' , 'e' , 'B' , 'o' , 'o' , 't' ,
+ 'E' , 'n' , 'c' , 'V' , 'o' , 'l' , '1' , 0x00,
+ 0x01, 0x01
+};
+
+static void register_header_check_vault(file_stat_t *file_stat)
+{
+ register_header_check(0, vault_header, sizeof(vault_header), &header_check_vault, file_stat);
+}
+
+/*
+ * 03200be0 00 00 00 38 65 31 39 37 34 32 30 2d 39 35 65 34 |...8e197420-95e4|
+ * 03200bf0 2d 34 36 33 33 2d 61 33 34 66 2d 34 61 66 64 36 |-4633-a34f-4afd6|
+ * 03200c00 30 64 61 62 64 64 37 00 |0dabdd7.|
+ * */
+static int data_check_vault(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
+{
+ if(buffer_size>8)
+ {
+ unsigned int i;
+ for(i=(buffer_size/2)-28;i+28<buffer_size;i++)
+ {
+ if(buffer[i]=='-' && buffer[i+5]=='-' && buffer[i+10]=='-' && buffer[i+15]=='-' && buffer[i+28]=='\0')
+ {
+ file_recovery->calculated_file_size=file_recovery->file_size+i+28+1-(buffer_size/2);
+ return 2;
+ }
+ }
+ }
+ file_recovery->calculated_file_size=file_recovery->file_size+(buffer_size/2);
+ return 1;
+}
+
+static int header_check_vault(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
+{
+ if(memcmp(&buffer[0], vault_header, sizeof(vault_header))==0)
+ {
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_vault.extension;
+ file_recovery_new->data_check=&data_check_vault;
+ file_recovery_new->file_check=&file_check_size;
+ return 1;
+ }
+ return 0;
+}
+