[src/trunk]: src/usr.sbin/fstyp fstyp: Add HFS+ support

[tkusumi <tkusumi%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/dede2f74bd56
branches:  trunk
changeset: 1005954:dede2f74bd56
user:      tkusumi <tkusumi%NetBSD.org@localhost>
date:      Fri Dec 27 11:06:23 2019 +0000

description:
fstyp: Add HFS+ support

taken-from: FreeBSD (freebsd/freebsd@b4d7ad9f787e74e712423def67de8bd76f71943a)

diffstat:

 usr.sbin/fstyp/Makefile  |    4 +-
 usr.sbin/fstyp/fstyp.c   |    5 +-
 usr.sbin/fstyp/fstyp.h   |    3 +-
 usr.sbin/fstyp/hfsplus.c |  125 +++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 132 insertions(+), 5 deletions(-)

diffs (187 lines):

diff -r 75f94b40b742 -r dede2f74bd56 usr.sbin/fstyp/Makefile
--- a/usr.sbin/fstyp/Makefile   Fri Dec 27 10:20:01 2019 +0000
+++ b/usr.sbin/fstyp/Makefile   Fri Dec 27 11:06:23 2019 +0000
@@ -1,9 +1,9 @@
-#      $NetBSD: Makefile,v 1.6 2019/11/18 14:53:34 tkusumi Exp $
+#      $NetBSD: Makefile,v 1.7 2019/12/27 11:06:23 tkusumi Exp $
 
 .include <bsd.own.mk>
 
 PROG=  fstyp
-SRCS=  cd9660.c exfat.c ext2fs.c fstyp.c msdosfs.c ntfs.c ufs.c
+SRCS=  cd9660.c exfat.c ext2fs.c fstyp.c hfsplus.c msdosfs.c ntfs.c ufs.c
 
 .if (${MKZFS} != "no")
 SRCS+= zfs.c
diff -r 75f94b40b742 -r dede2f74bd56 usr.sbin/fstyp/fstyp.c
--- a/usr.sbin/fstyp/fstyp.c    Fri Dec 27 10:20:01 2019 +0000
+++ b/usr.sbin/fstyp/fstyp.c    Fri Dec 27 11:06:23 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fstyp.c,v 1.3 2019/11/18 14:53:34 tkusumi Exp $        */
+/*     $NetBSD: fstyp.c,v 1.4 2019/12/27 11:06:23 tkusumi Exp $        */
 
 /*-
  * Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
  *
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: fstyp.c,v 1.3 2019/11/18 14:53:34 tkusumi Exp $");
+__RCSID("$NetBSD: fstyp.c,v 1.4 2019/12/27 11:06:23 tkusumi Exp $");
 
 #include <sys/disklabel.h>
 #include <sys/dkio.h>
@@ -66,6 +66,7 @@
        { "cd9660", &fstyp_cd9660, false },
        { "exfat", &fstyp_exfat, false },
        { "ext2fs", &fstyp_ext2fs, false },
+       { "hfs+", &fstyp_hfsp, false },
        { "msdosfs", &fstyp_msdosfs, false },
        { "ntfs", &fstyp_ntfs, false },
        { "ufs", &fstyp_ufs, false },
diff -r 75f94b40b742 -r dede2f74bd56 usr.sbin/fstyp/fstyp.h
--- a/usr.sbin/fstyp/fstyp.h    Fri Dec 27 10:20:01 2019 +0000
+++ b/usr.sbin/fstyp/fstyp.h    Fri Dec 27 11:06:23 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fstyp.h,v 1.2 2019/11/18 14:53:34 tkusumi Exp $        */
+/*     $NetBSD: fstyp.h,v 1.3 2019/12/27 11:06:23 tkusumi Exp $        */
 
 /*-
  * Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -46,6 +46,7 @@
 int    fstyp_cd9660(FILE *, char *, size_t);
 int    fstyp_exfat(FILE *fp, char *label, size_t size);
 int    fstyp_ext2fs(FILE *, char *, size_t);
+int    fstyp_hfsp(FILE *fp, char *label, size_t size);
 int    fstyp_msdosfs(FILE *, char *, size_t);
 int    fstyp_ntfs(FILE *, char *, size_t);
 int    fstyp_ufs(FILE *, char *, size_t);
diff -r 75f94b40b742 -r dede2f74bd56 usr.sbin/fstyp/hfsplus.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/fstyp/hfsplus.c  Fri Dec 27 11:06:23 2019 +0000
@@ -0,0 +1,125 @@
+/*     $NetBSD: hfsplus.c,v 1.1 2019/12/27 11:06:23 tkusumi Exp $      */
+/*
+ * Copyright (c) 2019 Conrad Meyer <cem%FreeBSD.org@localhost>.  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>
+__RCSID("$NetBSD: hfsplus.c,v 1.1 2019/12/27 11:06:23 tkusumi Exp $");
+
+#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);
+}