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+/* $FreeBSD$ */
+#ifndef _EFI_FS_H
+#define _EFI_FS_H
+
+/*++
+
+Copyright (c) 1999 - 2002 Intel Corporation. All rights reserved
+This software and associated documentation (if any) is furnished
+under a license and may only be used or copied in accordance
+with the terms of the license. Except as permitted by such
+license, no part of this software or documentation may be
+reproduced, stored in a retrieval system, or transmitted in any
+form or by any means without the express written consent of
+Intel Corporation.
+
+Module Name:
+
+ efifs.h
+
+Abstract:
+
+ EFI File System structures
+
+
+
+Revision History
+
+--*/
+
+
+//
+// EFI Partition header (normaly starts in LBA 1)
+//
+
+#define EFI_PARTITION_SIGNATURE 0x5053595320494249
+#define EFI_PARTITION_REVISION 0x00010001
+#define MIN_EFI_PARTITION_BLOCK_SIZE 512
+#define EFI_PARTITION_LBA 1
+
+typedef struct _EFI_PARTITION_HEADER {
+ EFI_TABLE_HEADER Hdr;
+ UINT32 DirectoryAllocationNumber;
+ UINT32 BlockSize;
+ EFI_LBA FirstUsableLba;
+ EFI_LBA LastUsableLba;
+ EFI_LBA UnusableSpace;
+ EFI_LBA FreeSpace;
+ EFI_LBA RootFile;
+ EFI_LBA SecutiryFile;
+} EFI_PARTITION_HEADER;
+
+
+//
+// File header
+//
+
+#define EFI_FILE_HEADER_SIGNATURE 0x454c494620494249
+#define EFI_FILE_HEADER_REVISION 0x00010000
+#define EFI_FILE_STRING_SIZE 260
+
+typedef struct _EFI_FILE_HEADER {
+ EFI_TABLE_HEADER Hdr;
+ UINT32 Class;
+ UINT32 LBALOffset;
+ EFI_LBA Parent;
+ UINT64 FileSize;
+ UINT64 FileAttributes;
+ EFI_TIME FileCreateTime;
+ EFI_TIME FileModificationTime;
+ EFI_GUID VendorGuid;
+ CHAR16 FileString[EFI_FILE_STRING_SIZE];
+} EFI_FILE_HEADER;
+
+
+//
+// Return the file's first LBAL which is in the same
+// logical block as the file header
+//
+
+#define EFI_FILE_LBAL(a) ((EFI_LBAL *) (((CHAR8 *) (a)) + (a)->LBALOffset))
+
+#define EFI_FILE_CLASS_FREE_SPACE 1
+#define EFI_FILE_CLASS_EMPTY 2
+#define EFI_FILE_CLASS_NORMAL 3
+
+
+//
+// Logical Block Address List - the fundemental block
+// description structure
+//
+
+#define EFI_LBAL_SIGNATURE 0x4c41424c20494249
+#define EFI_LBAL_REVISION 0x00010000
+
+typedef struct _EFI_LBAL {
+ EFI_TABLE_HEADER Hdr;
+ UINT32 Class;
+ EFI_LBA Parent;
+ EFI_LBA Next;
+ UINT32 ArraySize;
+ UINT32 ArrayCount;
+} EFI_LBAL;
+
+// Array size
+#define EFI_LBAL_ARRAY_SIZE(lbal,offs,blks) \
+ (((blks) - (offs) - (lbal)->Hdr.HeaderSize) / sizeof(EFI_RL))
+
+//
+// Logical Block run-length
+//
+
+typedef struct {
+ EFI_LBA Start;
+ UINT64 Length;
+} EFI_RL;
+
+//
+// Return the run-length structure from an LBAL header
+//
+
+#define EFI_LBAL_RL(a) ((EFI_RL*) (((CHAR8 *) (a)) + (a)->Hdr.HeaderSize))
+
+#endif