diff --git a/src/Makefile.am b/src/Makefile.am index e60a2f97..b2bfd881 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -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 \ diff --git a/src/file_list.c b/src/file_list.c index 5e0cb38c..aee00150 100644 --- a/src/file_list.c +++ b/src/file_list.c @@ -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 }, diff --git a/src/file_msa.c b/src/file_msa.c new file mode 100644 index 00000000..7d9f558b --- /dev/null +++ b/src/file_msa.c @@ -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=®ister_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); +}