1 files changed, 120 insertions, 0 deletions
diff --git a/usr.bin/mkimg/vtoc8.c b/usr.bin/mkimg/vtoc8.c
new file mode 100644
index 0000000..4363024
--- /dev/null
+++ b/usr.bin/mkimg/vtoc8.c
@@ -0,0 +1,120 @@
+/*-
+ * Copyright (c) 2014 Juniper Networks, Inc.
+ * 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 <sys/types.h>
+#include <sys/endian.h>
+#include <sys/errno.h>
+#include <sys/vtoc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mkimg.h"
+#include "scheme.h"
+
+static struct mkimg_alias vtoc8_aliases[] = {
+    {	ALIAS_FREEBSD_NANDFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_NANDFS) },
+    {	ALIAS_FREEBSD_SWAP, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_SWAP) },
+    {	ALIAS_FREEBSD_UFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_UFS) },
+    {	ALIAS_FREEBSD_VINUM, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_VINUM) },
+    {	ALIAS_FREEBSD_ZFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_NANDFS) },
+    {	ALIAS_NONE, 0 }
+};
+
+static u_int
+vtoc8_metadata(u_int where)
+{
+	u_int secs;
+
+	secs = (where == SCHEME_META_IMG_START) ? nsecs * nheads : 0;
+	return (secs);
+}
+
+static int
+vtoc8_write(int fd, lba_t imgsz, void *bootcode __unused)
+{
+	struct vtoc8 vtoc8;
+	struct part *part;
+	u_char *p;
+	int error, n;
+	uint16_t ofs, sum;
+
+	imgsz = ncyls * nheads * nsecs;
+
+	memset(&vtoc8, 0, sizeof(vtoc8));
+	sprintf(vtoc8.ascii, "FreeBSD%lldM",
+	    (long long)(imgsz * secsz / 1048576));
+	be32enc(&vtoc8.version, VTOC_VERSION);
+	be16enc(&vtoc8.nparts, VTOC8_NPARTS);
+	be32enc(&vtoc8.sanity, VTOC_SANITY);
+	be16enc(&vtoc8.rpm, 3600);
+	be16enc(&vtoc8.physcyls, ncyls);
+	be16enc(&vtoc8.ncyls, ncyls);
+	be16enc(&vtoc8.altcyls, 0);
+	be16enc(&vtoc8.nheads, nheads);
+	be16enc(&vtoc8.nsecs, nsecs);
+	be16enc(&vtoc8.magic, VTOC_MAGIC);
+
+	ftruncate(fd, imgsz * secsz);
+
+	be32enc(&vtoc8.map[VTOC_RAW_PART].nblks, imgsz);
+	STAILQ_FOREACH(part, &partlist, link) {
+		n = part->index + ((part->index >= VTOC_RAW_PART) ? 1 : 0);
+		be16enc(&vtoc8.part[n].tag, ALIAS_TYPE2INT(part->type));
+		be32enc(&vtoc8.map[n].cyl, part->block / (nsecs * nheads));
+		be32enc(&vtoc8.map[n].nblks, part->size);
+	}
+
+	/* Calculate checksum. */
+	sum = 0;
+	p = (void *)&vtoc8;
+	for (ofs = 0; ofs < sizeof(vtoc8) - 2; ofs += 2)
+		sum ^= be16dec(p + ofs);
+	be16enc(&vtoc8.cksum, sum);
+
+	error = mkimg_seek(fd, 0);
+	if (error == 0) {
+		if (write(fd, &vtoc8, sizeof(vtoc8)) != sizeof(vtoc8))
+			error = errno;
+	}
+	return (error);
+}
+
+static struct mkimg_scheme vtoc8_scheme = {
+	.name = "vtoc8",
+	.description = "SMI VTOC8 disk labels",
+	.aliases = vtoc8_aliases,
+	.metadata = vtoc8_metadata,
+	.write = vtoc8_write,
+	.nparts = VTOC8_NPARTS - 1,
+	.maxsecsz = 512
+};
+
+SCHEME_DEFINE(vtoc8_scheme);