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[src/trunk]: src/usr.sbin/fstyp fstyp: Add APFS support
details: https://anonhg.NetBSD.org/src/rev/0a8ff56a136e
branches: trunk
changeset: 466612:0a8ff56a136e
user: tkusumi <tkusumi%NetBSD.org@localhost>
date: Fri Dec 27 11:15:06 2019 +0000
description:
fstyp: Add APFS support
taken-from: FreeBSD (freebsd/freebsd@171bb54729d6d6554eb09c9a3507b184795f33e3)
diffstat:
usr.sbin/fstyp/Makefile | 4 +-
usr.sbin/fstyp/apfs.c | 107 ++++++++++++++++++++++++++++++++++++++++++++++++
usr.sbin/fstyp/fstyp.c | 5 +-
usr.sbin/fstyp/fstyp.h | 3 +-
4 files changed, 114 insertions(+), 5 deletions(-)
diffs (169 lines):
diff -r 5db9632cac09 -r 0a8ff56a136e usr.sbin/fstyp/Makefile
--- a/usr.sbin/fstyp/Makefile Fri Dec 27 11:06:23 2019 +0000
+++ b/usr.sbin/fstyp/Makefile Fri Dec 27 11:15:06 2019 +0000
@@ -1,9 +1,9 @@
-# $NetBSD: Makefile,v 1.7 2019/12/27 11:06:23 tkusumi Exp $
+# $NetBSD: Makefile,v 1.8 2019/12/27 11:15:06 tkusumi Exp $
.include <bsd.own.mk>
PROG= fstyp
-SRCS= cd9660.c exfat.c ext2fs.c fstyp.c hfsplus.c msdosfs.c ntfs.c ufs.c
+SRCS= apfs.c cd9660.c exfat.c ext2fs.c fstyp.c hfsplus.c msdosfs.c ntfs.c ufs.c
.if (${MKZFS} != "no")
SRCS+= zfs.c
diff -r 5db9632cac09 -r 0a8ff56a136e usr.sbin/fstyp/apfs.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/fstyp/apfs.c Fri Dec 27 11:15:06 2019 +0000
@@ -0,0 +1,107 @@
+/* $NetBSD: apfs.c,v 1.1 2019/12/27 11:15:06 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: apfs.c,v 1.1 2019/12/27 11:15:06 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"
+
+/*
+ * This really detects the container format, which might be best supported by
+ * geom_part or a special GEOM class.
+ *
+ * https://developer.apple.com/support/downloads/Apple-File-System-Reference.pdf
+ */
+
+#define NX_CKSUM_SZ 8
+
+typedef uint64_t nx_oid_t;
+
+typedef uint64_t nx_xid_t;
+
+struct nx_obj {
+ uint8_t o_cksum[NX_CKSUM_SZ]; /* Fletcher 64 */
+ nx_oid_t o_oid;
+ nx_xid_t o_xid;
+ uint32_t o_type;
+ uint32_t o_subtype;
+};
+
+/* nx_obj::o_oid */
+#define OID_NX_SUPERBLOCK 1
+
+/* nx_obj::o_type: */
+#define OBJECT_TYPE_MASK 0x0000ffff
+#define OBJECT_TYPE_NX_SUPERBLOCK 0x00000001
+#define OBJECT_TYPE_FLAGS_MASK 0xffff0000
+#define OBJ_STORAGETYPE_MASK 0xc0000000
+#define OBJECT_TYPE_FLAGS_DEFINED_MASK 0xf8000000
+#define OBJ_STORAGE_VIRTUAL 0x00000000
+#define OBJ_STORAGE_EPHEMERAL 0x80000000
+#define OBJ_STORAGE_PHYSICAL 0x40000000
+#define OBJ_NOHEADER 0x20000000
+#define OBJ_ENCRYPTED 0x10000000
+#define OBJ_NONPERSISTENT 0x08000000
+
+struct nx_superblock {
+ struct nx_obj nx_o;
+ char nx_magic[4];
+ /* ... other stuff that doesn't matter */
+};
+
+int
+fstyp_apfs(FILE *fp, char *label, size_t size)
+{
+ struct nx_superblock *csb;
+ int retval;
+
+ retval = 1;
+ csb = read_buf(fp, 0, sizeof(*csb));
+ if (csb == NULL)
+ goto fail;
+
+ /* Ideally, checksum the SB here. */
+ if (strncmp(csb->nx_magic, "NXSB", 4) != 0 ||
+ csb->nx_o.o_oid != OID_NX_SUPERBLOCK ||
+ (csb->nx_o.o_type & OBJECT_TYPE_MASK) != OBJECT_TYPE_NX_SUPERBLOCK)
+ goto fail;
+
+ retval = 0;
+
+ /* No label support yet. */
+
+fail:
+ free(csb);
+ return (retval);
+}
diff -r 5db9632cac09 -r 0a8ff56a136e usr.sbin/fstyp/fstyp.c
--- a/usr.sbin/fstyp/fstyp.c Fri Dec 27 11:06:23 2019 +0000
+++ b/usr.sbin/fstyp/fstyp.c Fri Dec 27 11:15:06 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: fstyp.c,v 1.4 2019/12/27 11:06:23 tkusumi Exp $ */
+/* $NetBSD: fstyp.c,v 1.5 2019/12/27 11:15:06 tkusumi Exp $ */
/*-
* Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
*
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: fstyp.c,v 1.4 2019/12/27 11:06:23 tkusumi Exp $");
+__RCSID("$NetBSD: fstyp.c,v 1.5 2019/12/27 11:15:06 tkusumi Exp $");
#include <sys/disklabel.h>
#include <sys/dkio.h>
@@ -63,6 +63,7 @@
fstyp_function function;
bool unmountable;
} fstypes[] = {
+ { "apfs", &fstyp_apfs, true },
{ "cd9660", &fstyp_cd9660, false },
{ "exfat", &fstyp_exfat, false },
{ "ext2fs", &fstyp_ext2fs, false },
diff -r 5db9632cac09 -r 0a8ff56a136e usr.sbin/fstyp/fstyp.h
--- a/usr.sbin/fstyp/fstyp.h Fri Dec 27 11:06:23 2019 +0000
+++ b/usr.sbin/fstyp/fstyp.h Fri Dec 27 11:15:06 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: fstyp.h,v 1.3 2019/12/27 11:06:23 tkusumi Exp $ */
+/* $NetBSD: fstyp.h,v 1.4 2019/12/27 11:15:06 tkusumi Exp $ */
/*-
* Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -43,6 +43,7 @@
char *checked_strdup(const char *);
void rtrim(char *, size_t);
+int fstyp_apfs(FILE *fp, char *label, size_t size);
int fstyp_cd9660(FILE *, char *, size_t);
int fstyp_exfat(FILE *fp, char *label, size_t size);
int fstyp_ext2fs(FILE *, char *, size_t);
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