UDF: support for metadata partition (feature from 2.50)

* added Icb::FindBlock() to find block in extents.
* MetadataPartition uses extents descriptors found in the metadatafile
to lookup blocks on a physical partition
* uses struct timespec instead of time_t
* added init_entities() to call C++ structures constructors. This is
called at module initialization, C++ constructors are currently not called when
a kernel module is loaded.
* tested with a sample bluray ISO.

src/add-ons/kernel/file_systems/udf/Icb.cpp

@@ -1,6 +1,7 @@
 /*
- * Copyright 2003, Tyler Dauwalder, [email protected].
+ * Copyright 2012, Jérôme Duval, [email protected].
  * Copyright 2010, Michael Lotz, [email protected].
+ * Copyright 2003, Tyler Dauwalder, [email protected].
  * Distributed under the terms of the MIT License.
  */
 
@@ -104,6 +105,7 @@ Icb::Icb(Volume *volume, long_address address)
 	fData(volume),
 	fInitStatus(B_NO_INIT),
 	fId(to_vnode_id(address)),
+	fPartition(address.partition()),
 	fFileEntry(&fData),
 	fExtendedEntry(&fData),
 	fFileCache(NULL),
@@ -177,17 +179,105 @@ Icb::InitCheck()
 }
 
 
-time_t
-Icb::AccessTime()
+void
+Icb::GetAccessTime(struct timespec &timespec) const
 {
-	return make_time(_FileEntry()->access_date_and_time());
+	timestamp ts;
+	if ((_Tag().id() == TAGID_EXTENDED_FILE_ENTRY))
+		ts = _ExtendedEntry()->access_date_and_time();
+	else
+		ts = _FileEntry()->access_date_and_time();
+
+	if (decode_time(ts, timespec) != B_OK) {
+		decode_time(
+			fVolume->PrimaryVolumeDescriptor()->recording_date_and_time(),
+			timespec);
+	}
 }
 
 
-time_t
-Icb::ModificationTime()
+void
+Icb::GetModificationTime(struct timespec &timespec) const
 {
-	return make_time(_FileEntry()->modification_date_and_time());
+	timestamp ts;
+	if ((_Tag().id() == TAGID_EXTENDED_FILE_ENTRY))
+		ts = _ExtendedEntry()->modification_date_and_time();
+	else
+		ts = _FileEntry()->modification_date_and_time();
+
+	if (decode_time(ts, timespec) != B_OK) {
+		decode_time(
+			fVolume->PrimaryVolumeDescriptor()->recording_date_and_time(),
+			timespec);
+	}
+}
+
+
+status_t
+Icb::FindBlock(uint32 logicalBlock, off_t &block)
+{
+	off_t pos = logicalBlock << fVolume->BlockShift();
+	if (uint64(pos) >= Length()) {
+		block = -1;
+		return B_ERROR;
+	}
+
+	DEBUG_INIT_ETC("Icb", ("pos: %lld", pos));
+
+	status_t status = B_OK;
+	long_address extent;
+	bool isEmpty = false;
+		
+	switch (_IcbTag().descriptor_flags()) {
+		case ICB_DESCRIPTOR_TYPE_SHORT: {
+			TRACE(("Icb::FindBlock: descriptor type -> short\n"));
+			AllocationDescriptorList<ShortDescriptorAccessor> list(this,
+				ShortDescriptorAccessor(fPartition));
+			status = list.FindExtent(pos, &extent, &isEmpty);
+			if (status != B_OK) {
+				TRACE_ERROR(("Icb::FindBlock: error finding extent for offset %Ld. "
+					"status = 0x%lx `%s'\n", pos, status, strerror(status)));
+			}
+			break;
+		}
+
+		case ICB_DESCRIPTOR_TYPE_LONG: {
+			TRACE(("Icb::FindBlock: descriptor type -> long\n"));
+			AllocationDescriptorList<LongDescriptorAccessor> list(this);
+			status = list.FindExtent(pos, &extent, &isEmpty);
+			if (status != B_OK) {
+				TRACE_ERROR(("Icb::FindBlock: error finding extent for offset %Ld. "
+					"status = 0x%lx `%s'\n", pos, status, strerror(status)));
+			}
+			break;
+		}
+
+		case ICB_DESCRIPTOR_TYPE_EXTENDED: {
+			TRACE(("Icb::FindBlock: descriptor type -> extended\n"));
+//			AllocationDescriptorList<ExtendedDescriptorAccessor> list(this, ExtendedDescriptorAccessor(0));
+//			RETURN(_Read(list, pos, buffer, length, block));
+			RETURN(B_ERROR);
+			break;
+		}
+
+		case ICB_DESCRIPTOR_TYPE_EMBEDDED: {
+			TRACE(("Icb::FindBlock: descriptor type: embedded\n"));
+			RETURN(B_ERROR);
+			break;
+		}
+
+		default:
+			TRACE(("Icb::FindBlock: invalid icb descriptor flags! (flags = %d)\n",
+				_IcbTag().descriptor_flags()));
+			RETURN(B_BAD_VALUE);
+			break;
+	}
+
+	if (status == B_OK) {
+		block = extent.block();
+		TRACE(("Icb::FindBlock: block %lld\n", block));
+	}
+	return status;
 }
 
 
@@ -205,13 +295,16 @@ Icb::Read(off_t pos, void *buffer, size_t *length, uint32 *block)
 		return B_OK;
 	}
 
+	DEBUG_INIT_ETC("Icb", ("pos: %lld, length: %ld", pos, *length));
+
 	if (fFileCache != NULL)
 		return file_cache_read(fFileCache, NULL, pos, buffer, length);
 
 	switch (_IcbTag().descriptor_flags()) {
 		case ICB_DESCRIPTOR_TYPE_SHORT: {
 			TRACE(("Icb::Read: descriptor type -> short\n"));
-			AllocationDescriptorList<ShortDescriptorAccessor> list(this, ShortDescriptorAccessor(0));
+			AllocationDescriptorList<ShortDescriptorAccessor> list(this,
+				ShortDescriptorAccessor(fPartition));
 			RETURN(_Read(list, pos, buffer, length, block));
 			break;
 		}
@@ -445,7 +538,7 @@ Icb::Find(const char *filename, ino_t *id)
 	TRACE(("Icb::Find: filename = `%s', id = %p\n", filename, id));
 
 	if (!filename || !id)
-		RETURN(B_BAD_VALUE);
+		return B_BAD_VALUE;
 
 	DirectoryIterator *i;
 	status_t status = GetDirectoryIterator(&i);

src/add-ons/kernel/file_systems/udf/Icb.h

@@ -1,4 +1,5 @@
 /*
+ * Copyright 2012, Jérôme Duval, [email protected].
  * Copyright 2008, Salvatore Benedetto, [email protected].
  * Copyright 2003, Tyler Dauwalder, [email protected].
  * Distributed under the terms of the MIT License.
@@ -96,14 +97,15 @@ public:
 	uint64						Length() { return _FileEntry()->information_length(); }
 	mode_t						Mode() { return (IsDirectory() ? S_IFDIR : S_IFREG)
 									| S_IRUSR | S_IRGRP | S_IROTH; }
-	time_t						AccessTime();
-	time_t						ModificationTime();
+	void 						GetAccessTime(struct timespec &timespec) const;
+	void 						GetModificationTime(struct timespec &timespec) const;
 
 	uint8						*AllocationDescriptors()
 									{ return _AbstractEntry()->AllocationDescriptors(); }
 	uint32						AllocationDescriptorsSize()
 									{ return _AbstractEntry()->AllocationDescriptorsLength(); }
 
+	status_t					FindBlock(uint32 logicalBlock, off_t &block);
 	status_t					Read(off_t pos, void *buffer, size_t *length,
 									uint32 *block = NULL);
 
@@ -120,15 +122,17 @@ public:
 	Volume						*GetVolume() const { return fVolume; }
 
 private:
-	AbstractFileEntry			*_AbstractEntry() { return (_Tag().id()
+	AbstractFileEntry			*_AbstractEntry() const { return (_Tag().id()
 									== TAGID_EXTENDED_FILE_ENTRY)
 									? (AbstractFileEntry *)&fExtendedEntry
 									: (AbstractFileEntry *)&fFileEntry; }
 
-	descriptor_tag				&_Tag() { return ((icb_header *)fData.Block())->tag(); }
-	icb_entry_tag				&_IcbTag() { return ((icb_header *)fData.Block())->icb_tag(); }
-	file_icb_entry				*_FileEntry() { return (file_icb_entry *)fData.Block(); }
-	extended_file_icb_entry		&_ExtendedEntry() { return *(extended_file_icb_entry *)fData.Block(); }
+	descriptor_tag				&_Tag() const { return ((icb_header *)fData.Block())->tag(); }
+	icb_entry_tag				&_IcbTag() const { return ((icb_header *)fData.Block())->icb_tag(); }
+	file_icb_entry				*_FileEntry() const
+		{ return (file_icb_entry *)fData.Block(); }
+	extended_file_icb_entry		*_ExtendedEntry() const
+		{ return (extended_file_icb_entry *)fData.Block(); }
 
 	template<class DescriptorList>
 	status_t					_GetFileMap(DescriptorList &list, off_t offset,
@@ -143,6 +147,7 @@ private:
 	status_t					fInitStatus;
 	ino_t						fId;
 	SinglyLinkedList<DirectoryIterator>		fIteratorList;
+	uint16						fPartition;
 	FileEntry<file_icb_entry> 				fFileEntry;
 	FileEntry<extended_file_icb_entry>		fExtendedEntry;
 	void *						fFileCache;

src/add-ons/kernel/file_systems/udf/MetadataPartition.cpp

@@ -1,29 +1,45 @@
+/*
+ * Copyright 2012, Jérôme Duval, [email protected].
+ * Copyright 2003 Tyler Dauwalder, [email protected]
+ * This file may be used under the terms of the MIT License.
+ */
+
+
 #include "MetadataPartition.h"
 
-#define B_NOT_IMPLEMENTED B_ERROR
+#include "Icb.h"
 
 
 /*! \brief Creates a new MetadataPartition object.
 */
-MetadataPartition::MetadataPartition(Partition &parentPartition,
-                                     uint32 metadataFileLocation,
-	                                 uint32 metadataMirrorFileLocation,
-	                                 uint32 metadataBitmapFileLocation,
-	                                 uint32 allocationUnitSize,
-	                                 uint16 alignmentUnitSize,
-	                                 bool metadataIsDuplicated)
-	: fParentPartition(parentPartition)
-	, fAllocationUnitSize(allocationUnitSize)
-	, fAlignmentUnitSize(alignmentUnitSize)
-	, fMetadataIsDuplicated(metadataIsDuplicated)
-	, fInitStatus(B_NO_INIT)
+MetadataPartition::MetadataPartition(Volume *volume,
+	uint16 parentNumber, Partition &parentPartition, uint32 metadataFileLocation,
+	uint32 metadataMirrorFileLocation, uint32 metadataBitmapFileLocation,
+	uint32 allocationUnitSize, uint16 alignmentUnitSize,
+	bool metadataIsDuplicated)
+	: fPartition(parentNumber),
+	fParentPartition(parentPartition),
+	fAllocationUnitSize(allocationUnitSize),
+	fAlignmentUnitSize(alignmentUnitSize),
+	fMetadataIsDuplicated(metadataIsDuplicated),
+	fInitStatus(B_NO_INIT),
+	fMetadataIcb(NULL)
 {
+	long_address address;
+	address.set_to(metadataFileLocation, fPartition);
+	
+	fMetadataIcb = new(nothrow) Icb(volume, address);
+	if (fMetadataIcb == NULL || fMetadataIcb->InitCheck() != B_OK)
+		fInitStatus = B_NO_MEMORY;
+
+	fInitStatus = B_OK;
 }
 
 /*! \brief Destroys the MetadataPartition object.
 */
 MetadataPartition::~MetadataPartition()
 {
+	delete fMetadataIcb;
 }
 
 /*! \brief Maps the given logical block to a physical block on disc.
@@ -31,7 +47,11 @@ MetadataPartition::~MetadataPartition()
 status_t
 MetadataPartition::MapBlock(uint32 logicalBlock, off_t &physicalBlock)
 {
-	return B_NOT_IMPLEMENTED;
+	off_t block = 0;
+	status_t status = fMetadataIcb->FindBlock(logicalBlock, block);
+	if (status != B_OK)
+		return status;
+	return fParentPartition.MapBlock(block, physicalBlock);
 }
 
 /*! Returns the initialization status of the object.

src/add-ons/kernel/file_systems/udf/MetadataPartition.h

@@ -1,9 +1,8 @@
-//----------------------------------------------------------------------
-//  This software is part of the OpenBeOS distribution and is covered 
-//  by the OpenBeOS license.
-//
-//  Copyright (c) 2003 Tyler Dauwalder, [email protected]
-//---------------------------------------------------------------------
+/*
+ * Copyright 2012, Jérôme Duval, [email protected].
+ * Copyright 2003 Tyler Dauwalder, [email protected]
+ * This file may be used under the terms of the MIT License.
+ */
 #ifndef _UDF_METADATA_PARTITION_H
 #define _UDF_METADATA_PARTITION_H
 
@@ -12,8 +11,9 @@
 
 #include <util/kernel_cpp.h>
 
-#include "Partition.h"
 #include "UdfDebug.h"
+#include "Volume.h"
+
 
 /*! \brief Type 2 metadata partition
 
@@ -24,10 +24,10 @@
 */
 class MetadataPartition : public Partition {
 public:
-	MetadataPartition(Partition &parentPartition, uint32 metadataFileLocation,
-	                  uint32 metadataMirrorFileLocation, uint32 metadataBitmapFileLocation,
-	                  uint32 allocationUnitSize, uint16 alignmentUnitSize,
-	                  bool metadataIsDuplicated);
+	MetadataPartition(Volume *volume, uint16 partition, Partition &parentPartition, 
+			uint32 metadataFileLocation, uint32 metadataMirrorFileLocation,
+			uint32 metadataBitmapFileLocation, uint32 allocationUnitSize,
+			uint16 alignmentUnitSize, bool metadataIsDuplicated);
 	virtual ~MetadataPartition();
 	virtual status_t MapBlock(uint32 logicalBlock, off_t &physicalBlock);
 	
@@ -37,11 +37,13 @@ public:
 	uint16 AlignmentUnitSize() const { return fAlignmentUnitSize; }
 	uint32 MetadataIsDuplicated() const { return fMetadataIsDuplicated; }
 private:
+	uint16 fPartition;
 	Partition &fParentPartition;
 	uint32 fAllocationUnitSize;
 	uint16 fAlignmentUnitSize;
 	bool fMetadataIsDuplicated;
 	status_t fInitStatus;
+	Icb	*fMetadataIcb;
 };
 
 #endif	// _UDF_METADATA_PARTITION_H

src/add-ons/kernel/file_systems/udf/Recognition.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright 2012, Jérôme Duval, [email protected].
+ * Copyright 2003, Tyler Dauwalder, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+
+
 #include "Recognition.h"
 
 #include "UdfString.h"
@@ -18,6 +25,7 @@ walk_volume_recognition_sequence(int device, off_t offset, uint32 blockSize,
 static status_t
 walk_anchor_volume_descriptor_sequences(int device, off_t offset, off_t length,
 	uint32 blockSize, uint32 blockShift,
+	primary_volume_descriptor &primaryVolumeDescriptor,
 	logical_volume_descriptor &logicalVolumeDescriptor,
 	partition_descriptor partitionDescriptors[],
 	uint8 &partitionDescriptorCount);
@@ -25,6 +33,7 @@ walk_anchor_volume_descriptor_sequences(int device, off_t offset, off_t length,
 static status_t
 walk_volume_descriptor_sequence(extent_address descriptorSequence, int device,
 	uint32 blockSize, uint32 blockShift,
+	primary_volume_descriptor &primaryVolumeDescriptor,
 	logical_volume_descriptor &logicalVolumeDescriptor,
 	partition_descriptor partitionDescriptors[],
 	uint8 &partitionDescriptorCount);
@@ -40,7 +49,8 @@ walk_integrity_sequence(int device, uint32 blockSize, uint32 blockShift,
 
 status_t
 udf_recognize(int device, off_t offset, off_t length, uint32 blockSize,
-	uint32 &blockShift, logical_volume_descriptor &logicalVolumeDescriptor,
+	uint32 &blockShift, primary_volume_descriptor &primaryVolumeDescriptor,
+	logical_volume_descriptor &logicalVolumeDescriptor,
 	partition_descriptor partitionDescriptors[],
 	uint8 &partitionDescriptorCount)
 {
@@ -66,7 +76,8 @@ udf_recognize(int device, off_t offset, off_t length, uint32 blockSize,
 	// Now hunt down a volume descriptor sequence from one of
 	// the anchor volume pointers (if there are any).
 	status = walk_anchor_volume_descriptor_sequences(device, offset, length,
-		blockSize, blockShift, logicalVolumeDescriptor, partitionDescriptors,
+		blockSize, blockShift, primaryVolumeDescriptor,
+		logicalVolumeDescriptor, partitionDescriptors,
 		partitionDescriptorCount);
 	if (status != B_OK) {
 		TRACE_ERROR(("udf_recognize: cannot find volume descriptor. status = %ld\n",
@@ -161,6 +172,7 @@ walk_volume_recognition_sequence(int device, off_t offset, uint32 blockSize,
 static status_t
 walk_anchor_volume_descriptor_sequences(int device, off_t offset, off_t length,
 	uint32 blockSize, uint32 blockShift, 
+	primary_volume_descriptor &primaryVolumeDescriptor,
 	logical_volume_descriptor &logicalVolumeDescriptor,
 	partition_descriptor partitionDescriptors[],
 	uint8 &partitionDescriptorCount)
@@ -200,13 +212,15 @@ walk_anchor_volume_descriptor_sequences(int device, off_t offset, off_t length,
 			// Found an avds, so try the main sequence first, then
 			// the reserve sequence if the main one fails.
 			anchorErr = walk_volume_descriptor_sequence(anchor->main_vds(),
-				device, blockSize, blockShift, logicalVolumeDescriptor,
-				partitionDescriptors, partitionDescriptorCount);
+				device, blockSize, blockShift, primaryVolumeDescriptor,
+				logicalVolumeDescriptor, partitionDescriptors,
+				partitionDescriptorCount);
 
 			if (anchorErr)
 				anchorErr = walk_volume_descriptor_sequence(anchor->reserve_vds(),
-					device,	blockSize, blockShift, logicalVolumeDescriptor,
-					partitionDescriptors, partitionDescriptorCount);				
+					device,	blockSize, blockShift, primaryVolumeDescriptor,
+					logicalVolumeDescriptor, partitionDescriptors,
+					partitionDescriptorCount);				
 		}
 		if (!anchorErr) {
 			PRINT(("block %Ld: found valid vds\n", avds_locations[i]));
@@ -225,6 +239,7 @@ static
 status_t
 walk_volume_descriptor_sequence(extent_address descriptorSequence,
 	int device, uint32 blockSize, uint32 blockShift,
+	primary_volume_descriptor &primaryVolumeDescriptor,
 	logical_volume_descriptor &logicalVolumeDescriptor,
 	partition_descriptor partitionDescriptors[],
 	uint8 &partitionDescriptorCount)
@@ -271,7 +286,7 @@ walk_volume_descriptor_sequence(extent_address descriptorSequence,
 				{
 					primary_volume_descriptor *primary = reinterpret_cast<primary_volume_descriptor*>(tag);
 					PDUMP(primary);				
-					(void)primary;	// kill the warning		
+					primaryVolumeDescriptor = *primary;
 					break;
 				}
 

src/add-ons/kernel/file_systems/udf/Recognition.h

@@ -1,9 +1,8 @@
-//----------------------------------------------------------------------
-//  This software is part of the OpenBeOS distribution and is covered 
-//  by the OpenBeOS license.
-//
-//  Copyright (c) 2003 Tyler Dauwalder, [email protected]
-//---------------------------------------------------------------------
+/*
+ * Copyright 2012, Jérôme Duval, [email protected].
+ * Copyright 2003, Tyler Dauwalder, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
 #ifndef _UDF_RECOGNITION_H
 #define _UDF_RECOGNITION_H
 
@@ -14,9 +13,10 @@
 #include "UdfDebug.h"
 
 status_t udf_recognize(int device, off_t offset, off_t length,
-					   uint32 blockSize, uint32 &blockShift,
-                       logical_volume_descriptor &logicalVolumeDescriptor,
-                       partition_descriptor partitionDescriptors[],
-                       uint8 &partitionDescriptorCount);
+									uint32 blockSize, uint32 &blockShift,
+									primary_volume_descriptor &primaryVolumeDescriptor,
+									logical_volume_descriptor &logicalVolumeDescriptor, 
+									partition_descriptor partitionDescriptors[],
+									uint8 &partitionDescriptorCount);
 
 #endif	// _UDF_RECOGNITION_H

src/add-ons/kernel/file_systems/udf/UdfStructures.cpp

@@ -1,9 +1,9 @@
-//----------------------------------------------------------------------
-//  This software is part of the OpenBeOS distribution and is covered 
-//  by the OpenBeOS license.
-//
-//  Copyright (c) 2003 Tyler Dauwalder, [email protected]
-//----------------------------------------------------------------------
+/*
+ * Copyright 2012, Jérôme Duval, [email protected].
+ * Copyright (c) 2003 Tyler Dauwalder, [email protected]
+ * This file may be used under the terms of the MIT License.
+ */
+
 
 /*! \file UdfStructures.cpp
 
@@ -38,20 +38,6 @@ const char* kVSDID_ECMA167_2 	= "NSR02";
 const char* kVSDID_ECMA167_3 	= "NSR03";
 const char* kVSDID_ECMA168		= "CDW02";
 
-// entity_ids
-const entity_id kMetadataPartitionMapId(0, "*UDF Metadata Partition");
-const entity_id kSparablePartitionMapId(0, "*UDF Sparable Partition");
-const entity_id kVirtualPartitionMapId(0, "*UDF Virtual Partition");
-const entity_id kImplementationId(0, "*OpenBeOS UDF", implementation_id_suffix(OS_BEOS, BEOS_GENERIC));
-const entity_id kPartitionContentsId1xx(0, "+NSR02");
-const entity_id kPartitionContentsId2xx(0, "+NSR03");
-const entity_id kLogicalVolumeInfoId150(0, "*UDF LV Info", udf_id_suffix(0x0150, OS_BEOS, BEOS_GENERIC));
-const entity_id kLogicalVolumeInfoId201(0, "*UDF LV Info", udf_id_suffix(0x0201, OS_BEOS, BEOS_GENERIC));
-const entity_id kDomainId150(0, "*OSTA UDF Compliant", domain_id_suffix(0x0150,
-                                  DF_HARD_WRITE_PROTECT));
-const entity_id kDomainId201(0, "*OSTA UDF Compliant", domain_id_suffix(0x0201,
-                                  DF_HARD_WRITE_PROTECT));
-
 //! crc 010041 table, as generated by crc_table.cpp
 const uint16 kCrcTable[256] = {
     0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
@@ -92,6 +78,40 @@ const uint32 kLogicalVolumeDescriptorBaseSize = sizeof(logical_volume_descriptor
                                                      - (UDF_MAX_PARTITION_MAPS
                                                         * UDF_MAX_PARTITION_MAP_SIZE);
 
+// entity_ids
+entity_id kMetadataPartitionMapId;
+entity_id kSparablePartitionMapId;
+entity_id kVirtualPartitionMapId;
+entity_id kImplementationId;
+entity_id kPartitionContentsId1xx;
+entity_id kPartitionContentsId2xx;
+entity_id kLogicalVolumeInfoId150;
+entity_id kLogicalVolumeInfoId201;
+entity_id kDomainId150;
+entity_id kDomainId201;
+
+
+//----------------------------------------------------------------------
+// Entities initialization
+//----------------------------------------------------------------------
+
+void
+init_entities()
+{
+	kMetadataPartitionMapId = entity_id(0, "*UDF Metadata Partition");
+	kSparablePartitionMapId = entity_id(0, "*UDF Sparable Partition");
+	kVirtualPartitionMapId = entity_id(0, "*UDF Virtual Partition");
+	kImplementationId = entity_id(0, "*OpenBeOS UDF", implementation_id_suffix(OS_BEOS, BEOS_GENERIC));
+	kPartitionContentsId1xx = entity_id(0, "+NSR02");
+	kPartitionContentsId2xx = entity_id(0, "+NSR03");
+	kLogicalVolumeInfoId150 = entity_id(0, "*UDF LV Info", udf_id_suffix(0x0150, OS_BEOS, BEOS_GENERIC));
+	kLogicalVolumeInfoId201 = entity_id(0, "*UDF LV Info", udf_id_suffix(0x0201, OS_BEOS, BEOS_GENERIC));
+	kDomainId150 = entity_id(0, "*OSTA UDF Compliant", domain_id_suffix(0x0150,
+                                  DF_HARD_WRITE_PROTECT));
+	kDomainId201 = entity_id(0, "*OSTA UDF Compliant", domain_id_suffix(0x0201,
+                                  DF_HARD_WRITE_PROTECT));
+}
+
 
 //----------------------------------------------------------------------
 // Helper functions
@@ -527,7 +547,7 @@ descriptor_tag::init_check(uint32 block, bool calculateCrc)
 {
 	DEBUG_INIT_ETC("descriptor_tag", ("location: %ld, calculateCrc: %s",
 	               block, bool_to_string(calculateCrc)));
-	PRINT(("location   (paramater)    == %ld\n", block));
+	PRINT(("location   (parameter)    == %ld\n", block));
 	PRINT(("location   (in structure) == %ld\n", location()));
 	if (calculateCrc) {
 		PRINT(("crc        (calculated)   == %d\n",

src/add-ons/kernel/file_systems/udf/UdfStructures.h

@@ -1,9 +1,8 @@
-//----------------------------------------------------------------------
-// This software is part of the OpenBeOS distribution and is covered 
-//  by the OpenBeOS license.
-//
-//  Copyright (c) 2003 Tyler Dauwalder, [email protected]
-//---------------------------------------------------------------------
+/*
+ * Copyright 2012, Jérôme Duval, korli@users.berlios.de.
+ * Copyright (c) 2003 Tyler Dauwalder, tyler@dauwalder.net
+ * This file may be used under the terms of the MIT License.
+ */
 #ifndef _UDF_DISK_STRUCTURES_H
 #define _UDF_DISK_STRUCTURES_H
 
@@ -121,7 +120,8 @@ public:
 	uint8 microsecond() const { return _microsecond; }
 	
 	// Set functions
-	void set_type_and_timezone(uint16 type_and_timezone) { _type_and_timezone = B_HOST_TO_LENDIAN_INT16(type_and_timezone); }
+	void set_type_and_timezone(uint16 type_and_timezone) { 
+		_type_and_timezone = B_HOST_TO_LENDIAN_INT16(type_and_timezone); }
 	void set_type(uint8 type) {
 		type_and_timezone_accessor t;
 		t.type_and_timezone = type_and_timezone();
@@ -141,7 +141,8 @@ public:
 	void set_minute(uint8 minute) { _minute = minute; }
 	void set_second(uint8 second) { _second = second; }
 	void set_centisecond(uint8 centisecond) { _centisecond = centisecond; }
-	void set_hundred_microsecond(uint8 hundred_microsecond) { _hundred_microsecond = hundred_microsecond; }
+	void set_hundred_microsecond(uint8 hundred_microsecond) { 
+		_hundred_microsecond = hundred_microsecond; }
 	void set_microsecond(uint8 microsecond) { _microsecond = microsecond; }
 private:
 	void _clear();
@@ -293,17 +294,18 @@ private:
 	array<uint8, kIdentifierSuffixLength> _identifier_suffix;
 } __attribute__((packed));
 
-extern const entity_id kMetadataPartitionMapId;
-extern const entity_id kSparablePartitionMapId;
-extern const entity_id kVirtualPartitionMapId;
-extern const entity_id kImplementationId;
-extern const entity_id kPartitionContentsId1xx;
-extern const entity_id kPartitionContentsId2xx;
-extern const entity_id kUdfId;
-extern const entity_id kLogicalVolumeInfoId150;
-extern const entity_id kLogicalVolumeInfoId201;
-extern const entity_id kDomainId150;
-extern const entity_id kDomainId201;
+extern entity_id kMetadataPartitionMapId;
+extern entity_id kSparablePartitionMapId;
+extern entity_id kVirtualPartitionMapId;
+extern entity_id kImplementationId;
+extern entity_id kPartitionContentsId1xx;
+extern entity_id kPartitionContentsId2xx;
+extern entity_id kUdfId;
+extern entity_id kLogicalVolumeInfoId150;
+extern entity_id kLogicalVolumeInfoId201;
+extern entity_id kDomainId150;
+extern entity_id kDomainId201;
+extern void init_entities(void);
 
 //----------------------------------------------------------------------
 // ECMA-167 Part 2
@@ -1307,6 +1309,49 @@ private:
 	See also: UDF-2.50 2.2.10
 */
 struct metadata_partition_map {
+public:
+	entity_id& partition_type_id() { return _partition_type_id; }
+	const entity_id& partition_type_id() const { return _partition_type_id; }
+
+	uint16 volume_sequence_number() const {
+		return B_LENDIAN_TO_HOST_INT16(_volume_sequence_number); }
+	void set_volume_sequence_number(uint16 number) {
+		_volume_sequence_number = B_HOST_TO_LENDIAN_INT16(number); }
+
+	uint16 partition_number() const {
+		return B_LENDIAN_TO_HOST_INT16(_partition_number); }
+	void set_partition_number(uint16 number) {
+		_partition_number = B_HOST_TO_LENDIAN_INT16(number); }
+
+	uint32 metadata_file_location() const {
+		return B_LENDIAN_TO_HOST_INT32(_metadata_file_location); }
+	void set_metadata_file_location(uint32 location) {
+		_metadata_file_location = B_HOST_TO_LENDIAN_INT32(location); }
+
+	uint32 metadata_mirror_file_location() const {
+		return B_LENDIAN_TO_HOST_INT32(_metadata_mirror_file_location); }
+	void set_metadata_mirror_file_location(uint32 location) {
+		_metadata_mirror_file_location = B_HOST_TO_LENDIAN_INT32(location); }
+
+	uint32 metadata_bitmap_file_location() const {
+		return B_LENDIAN_TO_HOST_INT32(_metadata_bitmap_file_location); }
+	void set_metadata_bitmap_file_location(uint32 location) {
+		_metadata_bitmap_file_location = B_HOST_TO_LENDIAN_INT32(location); }
+
+	uint32 allocation_unit_size() const {
+		return B_LENDIAN_TO_HOST_INT32(_allocation_unit_size); }
+	void set_allocation_unit_size(uint32 size) {
+		_allocation_unit_size = B_HOST_TO_LENDIAN_INT32(size); }
+
+	uint32 alignment_unit_size() const {
+		return B_LENDIAN_TO_HOST_INT32(_alignment_unit_size); }
+	void set_alignment_unit_size(uint32 size) {
+		_alignment_unit_size = B_HOST_TO_LENDIAN_INT32(size); }
+
+	uint8 flags() const { return _flags; }
+	void set_flags(uint8 flags) { _flags = flags; }
+	
+private:
 	uint8 type;
 	uint8 length;
 	uint8 reserved1[2];
@@ -1315,14 +1360,20 @@ struct metadata_partition_map {
 	    - identifier: "*UDF Metadata Partition"
 	    - identifier_suffix: per UDF-2.50 2.1.5
 	*/
-	entity_id partition_type_id;
-	uint16 volume_sequence_number;
+	entity_id _partition_type_id;
+	uint16 _volume_sequence_number;
 	
 	/*! corresponding type 1 or type 2 sparable partition
 	    map in same logical volume
 	*/
-	uint16 partition_number;	
-	uint8 reserved2[24];
+	uint16 _partition_number;	
+	uint32 _metadata_file_location;
+	uint32 _metadata_mirror_file_location;
+	uint32 _metadata_bitmap_file_location;
+	uint32 _allocation_unit_size;
+	uint16 _alignment_unit_size;
+	uint8 _flags;
+	uint8 reserved2[5];
 } __attribute__((packed));
 
 
@@ -1470,7 +1521,7 @@ enum {
 
 /*! \brief Highest currently supported UDF read revision.
 */
-#define UDF_MAX_READ_REVISION 0x0201
+#define UDF_MAX_READ_REVISION 0x0250
 
 //----------------------------------------------------------------------
 // ECMA-167 Part 4

src/add-ons/kernel/file_systems/udf/Utils.cpp

@@ -1,4 +1,5 @@
 /*
+ * Copyright 2012, Jérôme Duval, korli@users.berlios.de.
  * Copyright 2003, Tyler Dauwalder, tyler@dauwalder.net.
  * Distributed under the terms of the MIT License.
  */
@@ -79,8 +80,16 @@ get_block_shift(uint32 blockSize, uint32 &blockShift)
 }
 
 
-time_t
-make_time(timestamp &timestamp)
+#define EPOCH_YEAR	1970
+#define MAX_YEAR	69
+#define SECSPERMIN	60
+#define MINSPERHOUR	60
+#define HOURSPERDAY	24
+#define SECSPERDAY	(SECSPERMIN * MINSPERHOUR * HOURSPERDAY)
+#define DAYSPERNYEAR	365
+
+status_t
+decode_time(timestamp &timestamp, struct timespec &timespec)
 {
 	DEBUG_INIT_ETC(NULL, ("timestamp: (tnt: 0x%x, type: %d, timezone: %d = 0x%x, year: %d, " 
 	           "month: %d, day: %d, hour: %d, minute: %d, second: %d)", timestamp.type_and_timezone(),
@@ -88,50 +97,56 @@ make_time(timestamp &timestamp)
 	            timestamp.timezone(),timestamp.year(),
 	           timestamp.month(), timestamp.day(), timestamp.hour(), timestamp.minute(), timestamp.second()));
 
+	if (timestamp.year() < EPOCH_YEAR || timestamp.year() >= EPOCH_YEAR + MAX_YEAR)
+		return B_BAD_VALUE;
+
 	time_t result = 0;
+	const int monthLengths[12]
+		= { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
 
-	if (timestamp.year() >= 1970) {
-		const int monthLengths[12]
-			= { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+	int year = timestamp.year();
+	int month = timestamp.month();
+	int day = timestamp.day();
+	int hour = timestamp.hour();
+	int minute = timestamp.minute();
+	int second = timestamp.second();
 
-		int year = timestamp.year();
-		int month = timestamp.month();
-		int day = timestamp.day();
-		int hour = timestamp.hour();
-		int minute = timestamp.minute();
-		int second = timestamp.second();
+	// Range check the timezone offset, then round it down
+	// to the nearest hour, since no one I know treats timezones
+	// with a per-minute granularity, and none of the other OSes
+	// I've looked at appear to either.
+	int timezone_offset = 0;
+	if (timestamp.type() == 1)
+		timezone_offset = timestamp.timezone();
+	if (-SECSPERDAY > timezone_offset || timezone_offset > SECSPERDAY)
+		timezone_offset = 0;
+	timezone_offset -= timezone_offset % 60;
 
-		// Range check the timezone offset, then round it down
-		// to the nearest hour, since no one I know treats timezones
-		// with a per-minute granularity, and none of the other OSes
-		// I've looked at appear to either.
-		int timezone_offset = timestamp.timezone();
-		if (-1440 > timezone_offset || timezone_offset > 1440)
-			timezone_offset = 0;
-		timezone_offset -= timezone_offset % 60;
+	int previousLeapYears = (year - 1968) / 4;
+	bool isLeapYear = (year - 1968) % 4 == 0;
+	if (isLeapYear)
+		--previousLeapYears;
 
-		int previousLeapYears = (year - 1968) / 4;
-		bool isLeapYear = (year - 1968) % 4 == 0;
-		if (isLeapYear)
-			--previousLeapYears;
-
-		// Years to days
-		result = (year - 1970) * 365 + previousLeapYears;
-		// Months to days
-		for (int i = 0; i < month-1; i++) {
-			result += monthLengths[i];
-		}
-		if (month > 2 && isLeapYear)
-			++result;
-		// Days to hours
-		result = (result + day - 1) * 24;
-		// Hours to minutes
-		result = (result + hour) * 60 + timezone_offset;
-		// Minutes to seconds
-		result = (result + minute) * 60 + second;
+	// Years to days
+	result = (year - EPOCH_YEAR) * DAYSPERNYEAR + previousLeapYears;
+	// Months to days
+	for (int i = 0; i < month-1; i++) {
+		result += monthLengths[i];
 	}
+	if (month > 2 && isLeapYear)
+		++result;
+	// Days to hours
+	result = (result + day - 1) * HOURSPERDAY;
+	// Hours to minutes
+	result = (result + hour) * MINSPERHOUR + timezone_offset;
+	// Minutes to seconds
+	result = (result + minute) * SECSPERMIN + second;
 
-	return result;
+	timespec.tv_sec = result;
+	timespec.tv_nsec = 1000 * (timestamp.microsecond()
+		+ timestamp.hundred_microsecond() * 100
+		+ timestamp.centisecond() * 10000);
+	return B_OK;
 }
 
 

src/add-ons/kernel/file_systems/udf/Utils.h

@@ -16,7 +16,7 @@ const char		*bool_to_string(bool value);
 uint16			calculate_crc(uint8 *data, uint16 length);
 status_t		check_size_error(ssize_t bytesReturned, ssize_t bytesExpected);
 status_t		get_block_shift(uint32 blockSize, uint32 &blockShift);
-time_t			make_time(timestamp &timestamp);
+status_t		decode_time(timestamp &timestamp, struct timespec &timespec);
 long_address 	to_long_address(ino_t id, uint32 length = 0);
 ino_t			to_vnode_id(long_address address);
 

src/add-ons/kernel/file_systems/udf/Volume.cpp

@@ -1,4 +1,5 @@
 /*
+ * Copyright 2012, Jérôme Duval, korli@users.berlios.de.
  * Copyright 2008, Salvatore Benedetto, salvatore.benedetto@gmail.com
  * Copyright 2003, Tyler Dauwalder, tyler@dauwalder.net.
  * Distributed under the terms of the MIT License.
@@ -8,6 +9,7 @@
 
 #include "Icb.h"
 #include "MemoryChunk.h"
+#include "MetadataPartition.h"
 #include "PhysicalPartition.h"
 #include "Recognition.h"
 
@@ -62,6 +64,7 @@ Volume::Mount(const char *deviceName, off_t offset, off_t length,
 		return device;
 	}
 
+	DEBUG_INIT_ETC("Volume", ("deviceName: %s", deviceName));
 	status_t status = B_OK;
 
 	// If the device is actually a normal file, try to disable the cache
@@ -84,8 +87,8 @@ Volume::Mount(const char *deviceName, off_t offset, off_t length,
 	// Run through the volume recognition and descriptor sequences to
 	// see if we have a potentially valid UDF volume on our hands
 	status = udf_recognize(device, offset, length, blockSize, blockShift,
-				logicalVolumeDescriptor, partitionDescriptors,
-				partitionDescriptorCount);
+				fPrimaryVolumeDescriptor, logicalVolumeDescriptor,
+				partitionDescriptors, partitionDescriptorCount);
 
 	// Set up the block cache
 	if (!status) {
@@ -163,8 +166,43 @@ Volume::Mount(const char *deviceName, off_t offset, off_t length,
 				TRACE(("map type: metadata\n"));
 				metadata_partition_map* map =
 					reinterpret_cast<metadata_partition_map*>(header);
-				metadataCount++;
-				(void)map;	// kill the warning for now
+				
+				
+				// Find the corresponding partition descriptor
+				partition_descriptor *descriptor = NULL;
+				for (uint8 j = 0; j < partitionDescriptorCount; j++) {
+					if (map->partition_number() ==
+						partitionDescriptors[j].partition_number()) {
+						descriptor = &partitionDescriptors[j];
+						break;
+					}
+				}
+				Partition *parent = _GetPartition(map->partition_number());
+				// Create and add the partition
+				if (descriptor != NULL && parent != NULL) {
+					MetadataPartition *partition
+						= new(nothrow) MetadataPartition(this,
+							map->partition_number(), *parent,
+							map->metadata_file_location(),
+							map->metadata_mirror_file_location(),
+							map->metadata_bitmap_file_location(),
+							map->allocation_unit_size(),
+							map->alignment_unit_size(),
+							map->flags() & 1);
+					status = partition ? partition->InitCheck() : B_NO_MEMORY;
+					if (!status) {
+						TRACE(("Volume::Mount: adding MetadataPartition()"));
+						status = _SetPartition(i, partition);
+						if (status == B_OK)
+							metadataCount++;
+					} else {
+						TRACE_ERROR(("Volume::Mount: metadata partition "
+							"creation failed! 0x%lx\n", status));
+					}
+				} else {
+					TRACE_ERROR(("Volume::Mount: no matching partition descriptor found!\n"));
+					status = B_ERROR;
+				}
 			} else {
 				TRACE(("map type: unrecognized (`%.23s')\n",
 				       typeId.identifier()));
@@ -180,9 +218,9 @@ Volume::Mount(const char *deviceName, off_t offset, off_t length,
 	// Do some checking as to what sorts of partitions we've actually found.
 	if (!status) {
 		status = (physicalCount == 1 && virtualCount == 0
-		         && sparableCount == 0 && metadataCount == 0)
+		         && sparableCount == 0)
 		        || (physicalCount == 2 && virtualCount == 0
-		           && sparableCount == 0 && metadataCount == 0)
+		           && sparableCount == 0)
 		        ? B_OK : B_ERROR;
 		if (status) {
 			TRACE(("Invalid partition layout found:\n"));
@@ -294,6 +332,8 @@ Volume::MapBlock(long_address address, off_t *mappedBlock)
 {
 	TRACE(("Volume::MapBlock: partition = %d, block = %ld, mappedBlock = %p\n",
 		address.partition(), address.block(), mappedBlock));
+	DEBUG_INIT_ETC("Volume", ("partition = %d, block = %ld, mappedBlock = %p",
+		address.partition(), address.block(), mappedBlock));
 	status_t error = mappedBlock ? B_OK : B_BAD_VALUE;
 	if (!error) {
 		Partition *partition = _GetPartition(address.partition());

src/add-ons/kernel/file_systems/udf/Volume.h

@@ -1,4 +1,5 @@
 /*
+ * Copyright 2012, Jérôme Duval, korli@users.berlios.de.
  * Copyright 2008, Salvatore Benedetto, salvatore.benedetto@gmail.com
  * Copyright 2003, Tyler Dauwalder, tyler@dauwalder.net.
  * Distributed under the terms of the MIT License.
@@ -50,6 +51,8 @@ public:
 	uint32				BlockShift() const { return fBlockShift; }
 	bool				Mounted() const { return fMounted; }
 	Icb*				RootIcb() { return fRootIcb; }
+	primary_volume_descriptor *PrimaryVolumeDescriptor() 
+							{ return &fPrimaryVolumeDescriptor; }
 
 private:
 	void				_Unset();
@@ -69,6 +72,7 @@ private:
 	off_t				fOffset;
 	Partition			*fPartitions[UDF_MAX_PARTITION_MAPS];
 	Icb					*fRootIcb;	// Destroyed by vfs via callback to put_node()
+	primary_volume_descriptor fPrimaryVolumeDescriptor;
 };
 
 #endif	// _UDF_VOLUME_H

src/add-ons/kernel/file_systems/udf/kernel_interface.cpp

@@ -1,7 +1,8 @@
 /*
- * Copyright 2003, Tyler Dauwalder, tyler@dauwalder.net.
- * Copyright 2008, Salvatore Benedetto, salvatore.benedetto@gmail.com.
+ * Copyright 2012, Jérôme Duval, korli@users.berlios.de.
  * Copyright 2010, Michael Lotz, mmlr@mlotz.ch.
+ * Copyright 2008, Salvatore Benedetto, salvatore.benedetto@gmail.com.
+ * Copyright 2003, Tyler Dauwalder, tyler@dauwalder.net.
  * Distributed under the terms of the MIT License.
  */
 
@@ -80,13 +81,14 @@ udf_identify_partition(int fd, partition_data *partition, void **_cookie)
 		partition->offset, partition->size, partition->content_size,
 		partition->block_size));
 
+	primary_volume_descriptor primaryVolumeDescriptor;
 	logical_volume_descriptor logicalVolumeDescriptor;
 	partition_descriptor partitionDescriptors[kMaxPartitionDescriptors];
 	uint8 descriptorCount = kMaxPartitionDescriptors;
 	uint32 blockShift;
 	status_t error = udf_recognize(fd, partition->offset, partition->size,
-		partition->block_size, blockShift, logicalVolumeDescriptor,
-		partitionDescriptors, descriptorCount);
+		partition->block_size, blockShift, primaryVolumeDescriptor,
+		logicalVolumeDescriptor, partitionDescriptors, descriptorCount);
 	if (error != B_OK)
 		return -1;
 
@@ -293,8 +295,12 @@ udf_read_stat(fs_volume *_volume, fs_vnode *node, struct stat *stat)
 	// File times. For now, treat the modification time as creation
 	// time as well, since true creation time is an optional extended
 	// attribute, and supporting EAs is going to be a PITA. ;-)
-	stat->st_atime = icb->AccessTime();
-	stat->st_mtime = stat->st_ctime = stat->st_crtime = icb->ModificationTime();
+	icb->GetAccessTime(stat->st_atim);
+	icb->GetModificationTime(stat->st_mtim);
+	icb->GetModificationTime(stat->st_ctim);
+	icb->GetModificationTime(stat->st_crtim);
+	//icb->GetChangeTime(stat->st_ctim);
+	//icb->GetCreationTime(stat->st_crtim);
 
 	TRACE(("udf_read_stat: mode = 0x%x, st_ino: %Ld\n", stat->st_mode,
 		stat->st_ino));
@@ -343,6 +349,8 @@ udf_read(fs_volume *volume, fs_vnode *vnode, void *cookie, off_t pos,
 		((Volume *)volume->private_volume)->ID(), pos, *length));
 
 	Icb *icb = (Icb *)vnode->private_node;
+	DEBUG_INIT_ETC("udf_read", ("ID = %ld, pos = %lld, length = %lu",
+		((Volume *)volume->private_volume)->ID(), pos, *length));
 
 //	if (!inode->HasUserAccessableStream()) {
 //		*_length = 0;
@@ -385,6 +393,8 @@ static status_t
 udf_open_dir(fs_volume *volume, fs_vnode *vnode, void **cookie)
 {
 	TRACE(("udf_open_dir: volume = %p, vnode = %p\n", volume, vnode));
+	DEBUG_INIT_ETC("udf_open_dir", ("ID = %ld",
+		((Volume *)volume->private_volume)->ID()));
 
 	if (!volume || !vnode || !cookie)
 		RETURN(B_BAD_VALUE);
@@ -443,6 +453,8 @@ udf_read_dir(fs_volume *_volume, fs_vnode *vnode, void *cookie,
 	Icb *dir = (Icb *)vnode->private_node;
 	DirectoryIterator *iterator = (DirectoryIterator *)cookie;
 
+	DEBUG_INIT_ETC("udf_read_dir", ("ID = %ld", volume->ID()));
+
 	if (dir != iterator->Parent()) {
 		TRACE_ERROR(("udf_read_dir: Icb does not match parent Icb of given "
 			"DirectoryIterator! (iterator->Parent = %p)\n", iterator->Parent()));
@@ -474,6 +486,8 @@ udf_rewind_dir(fs_volume *volume, fs_vnode *vnode, void *cookie)
 {
 	TRACE(("udf_rewind_dir: volume = %p, vnode = %p, cookie = %p\n",
 		volume, vnode, cookie));
+	DEBUG_INIT_ETC("udf_rewind_dir", ("ID = %ld",
+		((Volume *)volume->private_volume)->ID()));
 
 	if (!volume || !vnode || !cookie)
 		RETURN(B_BAD_VALUE);
@@ -604,6 +618,8 @@ udf_std_ops(int32 op, ...)
 {
 	switch (op) {
 		case B_MODULE_INIT:
+			init_entities();
+			return B_OK;
 		case B_MODULE_UNINIT:
 			return B_OK;
 		default: