vol_id: add NetWare volume detection

extras/volume_id/lib/Makefile

@@ -47,6 +47,7 @@ OBJS=				\
 	ocfs.o			\
 	vxfs.o			\
 	squashfs.o		\
+	netware.o		\
 	volume_id.o		\
 	util.o
 

extras/volume_id/lib/exported_symbols

@@ -26,6 +26,7 @@
 	volume_id_probe_vxfs;
 	volume_id_probe_xfs;
 	volume_id_probe_squashfs;
+	volume_id_probe_netware;
 
 	volume_id_probe_linux_raid;
 	volume_id_probe_lvm1;

extras/volume_id/lib/libvolume_id.h

@@ -88,6 +88,7 @@ extern int volume_id_probe_ufs(struct volume_id *id, uint64_t off);
 extern int volume_id_probe_vxfs(struct volume_id *id, uint64_t off);
 extern int volume_id_probe_xfs(struct volume_id *id, uint64_t off);
 extern int volume_id_probe_squashfs(struct volume_id *id, uint64_t off);
+extern int volume_id_probe_netware(struct volume_id *id, uint64_t off);
 
 /* special formats */
 extern int volume_id_probe_linux_swap(struct volume_id *id, uint64_t off);

extras/volume_id/lib/netware.c

@@ -0,0 +1,63 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2006 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *	This program is free software; you can redistribute it and/or modify it
+ *	under the terms of the GNU General Public License as published by the
+ *	Free Software Foundation version 2 of the License.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "libvolume_id.h"
+#include "util.h"
+
+#define NW_SUPERBLOCK_OFFSET			0x1000
+
+struct netware_super_block {
+	uint8_t		SBH_Signature[4];
+	uint16_t	SBH_VersionMajor;
+	uint16_t	SBH_VersionMinor;
+	uint16_t	SBH_VersionMediaMajor;
+	uint16_t	SBH_VersionMediaMinor;
+	uint32_t	SBH_ItemsMoved;
+	uint8_t		SBH_InternalID[16];
+} PACKED;
+
+int volume_id_probe_netware(struct volume_id *id, uint64_t off)
+{
+	struct netware_super_block *nw;
+
+	info("probing at offset 0x%llx", (unsigned long long) off);
+
+	nw = (struct netware_super_block *) volume_id_get_buffer(id, off + NW_SUPERBLOCK_OFFSET, 0x200);
+	if (nw == NULL)
+		return -1;
+
+	if (memcmp(nw->SBH_Signature, "SPB5", 4) != 0)
+		return -1;
+
+	volume_id_set_uuid(id, nw->SBH_InternalID, UUID_DCE);
+
+	snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%02u",
+		 le16_to_cpu(nw->SBH_VersionMediaMajor), le16_to_cpu(nw->SBH_VersionMediaMinor));
+
+	volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+	id->type = "nss";
+
+	return 0;
+}

extras/volume_id/lib/volume_id.c

@@ -163,6 +163,9 @@ int volume_id_probe_filesystem(struct volume_id *id, uint64_t off, uint64_t size
 	if (volume_id_probe_squashfs(id, off) == 0)
 		goto found;
 
+	if (volume_id_probe_netware(id, off) == 0)
+		goto found;
+
 	return -1;
 
 found: