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PhotoRec: recover Mensura .msa files (not enabled by default)

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This commit is contained in:
Christophe Grenier 2018-02-07 18:16:58 +01:00
parent fe85fa7807
commit f2cbb4f7be
3 changed files with 77 additions and 0 deletions
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1
src/Makefile.am
View file

@ -213,6 +213,7 @@ file_C = filegen.c \
file_mpg.c \
file_mpl.c \
file_mrw.c \
file_msa.c \
file_mus.c \
file_mxf.c \
file_myo.c \

2
src/file_list.c
View file

@ -216,6 +216,7 @@ extern const file_hint_t file_hint_mp3;
extern const file_hint_t file_hint_mpg;
extern const file_hint_t file_hint_mpl;
extern const file_hint_t file_hint_mrw;
extern const file_hint_t file_hint_msa;
extern const file_hint_t file_hint_mus;
extern const file_hint_t file_hint_mxf;
extern const file_hint_t file_hint_myo;
@ -545,6 +546,7 @@ file_enable_t list_file_enable[]=
{ .enable=0, .file_hint=&file_hint_mpg },
{ .enable=0, .file_hint=&file_hint_mpl },
{ .enable=0, .file_hint=&file_hint_mrw },
{ .enable=0, .file_hint=&file_hint_msa },
{ .enable=0, .file_hint=&file_hint_mus },
{ .enable=0, .file_hint=&file_hint_myo },
{ .enable=0, .file_hint=&file_hint_mysql },

74
src/file_msa.c Normal file
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@ -0,0 +1,74 @@
/*
File: file_msa.c
Copyright (C) 2017 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"
#include "common.h"
static void register_header_check_msa(file_stat_t *file_stat);
const file_hint_t file_hint_msa= {
.extension="msa",
.description="Mensura",
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
.recover=1,
.enable_by_default=0,
.register_header_check=&register_header_check_msa
};
struct msa_header
{
uint32_t magic;
uint32_t size;
} __attribute__ ((gcc_struct, __packed__));
static int header_check_msa(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 struct msa_header *msa=(const struct msa_header *)buffer;
if(buffer[0x13]!=0x40)
return 0;
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_msa.extension;
file_recovery_new->calculated_file_size=(uint64_t)le32(msa->size);
file_recovery_new->data_check=&data_check_size;
file_recovery_new->file_check=&file_check_size;
return 1;
}
static void register_header_check_msa(file_stat_t *file_stat)
{
static const unsigned char msa_header_fb[4]= {
0xfb, 0xff, 0xff, 0xff
};
static const unsigned char msa_header_fc[4]= {
0xfc, 0xff, 0xff, 0xff
};
register_header_check(0, msa_header_fb, sizeof(msa_header_fb), &header_check_msa, file_stat);
register_header_check(0, msa_header_fc, sizeof(msa_header_fc), &header_check_msa, file_stat);
}