/*
* This file is part of libbluray
* Copyright (C) 2012-2017 Petri Hintukainen <phintuka@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "bdid_parse.h"
#include "bdmv_parse.h"
#include "disc/disc.h"
#include "file/file.h"
#include "util/bits.h"
#include "util/logging.h"
#include "util/macro.h"
#include "util/strutl.h"
#include <stdlib.h>
#define BDID_SIG1 ('B' << 24 | 'D' << 16 | 'I' << 8 | 'D')
static int _parse_header(BITSTREAM *bs, uint32_t *data_start, uint32_t *extension_data_start)
{
if (!bdmv_parse_header(bs, BDID_SIG1, NULL)) {
return 0;
}
*data_start = bs_read(bs, 32);
*extension_data_start = bs_read(bs, 32);
return 1;
}
static BDID_DATA *_bdid_parse(BD_FILE_H *fp)
{
BITSTREAM bs;
BDID_DATA *bdid = NULL;
uint32_t data_start, extension_data_start;
uint8_t tmp[16];
if (bs_init(&bs, fp) < 0) {
BD_DEBUG(DBG_NAV, "id.bdmv: read error\n");
return NULL;
}
if (!_parse_header(&bs, &data_start, &extension_data_start)) {
BD_DEBUG(DBG_NAV | DBG_CRIT, "id.bdmv: invalid header\n");
return NULL;
}
if (bs_seek_byte(&bs, 40) < 0) {
BD_DEBUG(DBG_NAV, "id.bdmv: read error\n");
return NULL;
}
bdid = calloc(1, sizeof(BDID_DATA));
if (!bdid) {
BD_DEBUG(DBG_CRIT, "out of memory\n");
return NULL;
}
bs_read_bytes(&bs, tmp, 4);
str_print_hex(bdid->org_id, tmp, 4);
bs_read_bytes(&bs, tmp, 16);
str_print_hex(bdid->disc_id, tmp, 16);
if (extension_data_start) {
BD_DEBUG(DBG_NAV | DBG_CRIT, "id.bdmv: ignoring unknown extension data\n");
}
return bdid;
}
static BDID_DATA *_bdid_get(BD_DISC *disc, const char *path)
{
BD_FILE_H *fp;
BDID_DATA *bdid;
fp = disc_open_path(disc, path);
if (!fp) {
return NULL;
}
bdid = _bdid_parse(fp);
file_close(fp);
return bdid;
}
BDID_DATA *bdid_get(BD_DISC *disc)
{
BDID_DATA *bdid;
bdid = _bdid_get(disc, "CERTIFICATE" DIR_SEP "id.bdmv");
/* if failed, try backup file */
if (!bdid) {
bdid = _bdid_get(disc, "CERTIFICATE" DIR_SEP "BACKUP" DIR_SEP "id.bdmv");
}
return bdid;
}
void bdid_free(BDID_DATA **p)
{
if (p && *p) {
X_FREE(*p);
}
}