126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2019 Conrad Meyer <cem@FreeBSD.org>. All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
__FBSDID("$FreeBSD$");
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include <err.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include "fstyp.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* https://developer.apple.com/library/archive/technotes/tn/tn1150.html
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define VOL_HDR_OFF 1024
|
||
|
|
|
||
|
|
typedef uint32_t hfsp_cat_nodeid;
|
||
|
|
|
||
|
|
typedef struct hfsp_ext_desc {
|
||
|
|
uint32_t ex_startBlock;
|
||
|
|
uint32_t ex_blockCount;
|
||
|
|
} hfsp_ext_desc;
|
||
|
|
|
||
|
|
typedef struct hfsp_fork_data {
|
||
|
|
uint64_t fd_logicalSz;
|
||
|
|
uint32_t fd_clumpSz;
|
||
|
|
uint32_t fd_totalBlocks;
|
||
|
|
hfsp_ext_desc fd_extents[8];
|
||
|
|
} hfsp_fork_data;
|
||
|
|
|
||
|
|
struct hfsp_vol_hdr {
|
||
|
|
char hp_signature[2];
|
||
|
|
uint16_t hp_version;
|
||
|
|
uint32_t hp_attributes;
|
||
|
|
uint32_t hp_lastMounted;
|
||
|
|
uint32_t hp_journalInfoBlock;
|
||
|
|
|
||
|
|
/* Creation / etc dates. */
|
||
|
|
uint32_t hp_create;
|
||
|
|
uint32_t hp_modify;
|
||
|
|
uint32_t hp_backup;
|
||
|
|
uint32_t hp_checked;
|
||
|
|
|
||
|
|
/* Stats */
|
||
|
|
uint32_t hp_files;
|
||
|
|
uint32_t hp_folders;
|
||
|
|
|
||
|
|
/* Parameters */
|
||
|
|
uint32_t hp_blockSize;
|
||
|
|
uint32_t hp_totalBlocks;
|
||
|
|
uint32_t hp_freeBlocks;
|
||
|
|
|
||
|
|
uint32_t hp_nextAlloc;
|
||
|
|
uint32_t hp_rsrcClumpSz;
|
||
|
|
uint32_t hp_dataClumpSz;
|
||
|
|
|
||
|
|
hfsp_cat_nodeid hp_nextCatID;
|
||
|
|
|
||
|
|
uint32_t hp_writeCount;
|
||
|
|
uint64_t hp_encodingsBM;
|
||
|
|
|
||
|
|
uint32_t hp_finderInfo[8];
|
||
|
|
|
||
|
|
hfsp_fork_data hp_allocationFile;
|
||
|
|
hfsp_fork_data hp_extentsFile;
|
||
|
|
hfsp_fork_data hp_catalogFile;
|
||
|
|
hfsp_fork_data hp_attributesFile;
|
||
|
|
hfsp_fork_data hp_startupFile;
|
||
|
|
};
|
||
|
|
_Static_assert(sizeof(struct hfsp_vol_hdr) == 512, "");
|
||
|
|
|
||
|
|
int
|
||
|
|
fstyp_hfsp(FILE *fp, char *label, size_t size)
|
||
|
|
{
|
||
|
|
struct hfsp_vol_hdr *hdr;
|
||
|
|
int retval;
|
||
|
|
|
||
|
|
retval = 1;
|
||
|
|
hdr = read_buf(fp, VOL_HDR_OFF, sizeof(*hdr));
|
||
|
|
if (hdr == NULL)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
if ((strncmp(hdr->hp_signature, "H+", 2) != 0 || hdr->hp_version != 4)
|
||
|
|
&&
|
||
|
|
(strncmp(hdr->hp_signature, "HX", 2) != 0 || hdr->hp_version != 5))
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* This is an HFS+ volume. */
|
||
|
|
retval = 0;
|
||
|
|
|
||
|
|
/* No label support yet. */
|
||
|
|
|
||
|
|
fail:
|
||
|
|
free(hdr);
|
||
|
|
return (retval);
|
||
|
|
}
|