/*
 * Copyright (c) 2008, 2009, 2010, 2011 Kernel Drivers, LLC.
 * Copyright (c) 2009, 2010, 2011 Your File System, 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:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - 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.
 * - Neither the names of Kernel Drivers, LLC and Your File System, Inc.
 *   nor the names of their contributors may be used to endorse or promote
 *   products derived from this software without specific prior written
 *   permission from Kernel Drivers, LLC and Your File System, Inc.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
 * 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.
 */

#ifndef _AFS_DEFINES_H
#define _AFS_DEFINES_H
//
// File: AFSDefines.h
//

//
// Conditional compiled code
//

//#define AFS_FLUSH_PAGES_SYNCHRONOUSLY       1       // Flush pages as we mark them dirty

//
// Debug information
//

#if DBG

//#define AFS_VALIDATE_EXTENTS            0

#define GEN_MD5 0

#else

#endif

//
// For 2K support
//

#ifndef FsRtlSetupAdvancedHeader

#define FSRTL_FLAG_ADVANCED_HEADER              (0x40)
#define FSRTL_FLAG2_SUPPORTS_FILTER_CONTEXTS    (0x02)

#define FsRtlSetupAdvancedHeader( _advhdr, _fmutx )                         \
{                                                                           \
    SetFlag( (_advhdr)->Flags, FSRTL_FLAG_ADVANCED_HEADER );                \
    SetFlag( (_advhdr)->Flags2, FSRTL_FLAG2_SUPPORTS_FILTER_CONTEXTS );     \
    InitializeListHead( &(_advhdr)->FilterContexts );                       \
    if ((_fmutx) != NULL) {                                                 \
        (_advhdr)->FastMutex = (_fmutx);                                    \
    }                                                                       \
}

#endif

typedef
NTSTATUS
(*PAFSRtlSetSaclSecurityDescriptor)( PSECURITY_DESCRIPTOR SecurityDescriptor,
                                     BOOLEAN SaclPresent,
                                     PACL Sacl,
                                     BOOLEAN SaclDefaulted);

typedef
NTSTATUS
(*PAFSRtlSetGroupSecurityDescriptor)( IN PSECURITY_DESCRIPTOR  SecurityDescriptor,
                                      IN PSID  Group  OPTIONAL,
                                      IN BOOLEAN  GroupDefaulted);

//
// Worker thread count
//

#define AFS_WORKER_COUNT        16
#define AFS_IO_WORKER_COUNT     8

//
// Worker thread states
//

#define AFS_WORKER_INITIALIZED                  0x0001
#define AFS_WORKER_PROCESS_REQUESTS             0x0002

//
// Worker Thread codes
//

#define AFS_WORK_UNUSED_1                       0x0001
#define AFS_WORK_FLUSH_FCB                      0x0002
#define AFS_WORK_UNUSED_3                       0x0003
#define AFS_WORK_UNUSED_4                       0x0004
#define AFS_WORK_UNUSED_5                       0x0005
#define AFS_WORK_ENUMERATE_GLOBAL_ROOT          0x0006
#define AFS_WORK_INVALIDATE_OBJECT              0x0007
#define AFS_WORK_START_IOS                      0x0008

//
// Worker request flags
//

#define AFS_SYNCHRONOUS_REQUEST                 0x00000001

//
// Fcb flags
//

#define AFS_FCB_FLAG_FILE_MODIFIED                           0x00000001
#define AFS_FCB_FILE_CLOSED                                  0x00000002
#define AFS_FCB_FLAG_UPDATE_WRITE_TIME                       0x00000004
#define AFS_FCB_FLAG_UPDATE_CHANGE_TIME                      0x00000008
#define AFS_FCB_FLAG_UPDATE_ACCESS_TIME                      0x00000010
#define AFS_FCB_FLAG_UPDATE_CREATE_TIME                      0x00000020
#define AFS_FCB_FLAG_UPDATE_LAST_WRITE_TIME                  0x00000040
#define AFS_FCB_FLAG_PURGE_ON_CLOSE                          0x00000080

//
// Object information flags
//

#define AFS_OBJECT_FLAGS_OBJECT_INVALID                 0x00000001
#define AFS_OBJECT_FLAGS_VERIFY                         0x00000002
#define AFS_OBJECT_FLAGS_NOT_EVALUATED                  0x00000004
#define AFS_OBJECT_FLAGS_DIRECTORY_ENUMERATED           0x00000008
#define AFS_OBJECT_FLAGS_DELETED                        0x00000010
#define AFS_OBJECT_INSERTED_HASH_TREE                   0x00000020
#define AFS_OBJECT_INSERTED_VOLUME_LIST                 0x00000040
#define AFS_OBJECT_HELD_IN_SERVICE                      0x00000080
#define AFS_OBJECT_ROOT_VOLUME                          0x00000100
#define AFS_OBJECT_FLAGS_VERIFY_DATA                    0x00000200

//
// Define one second in terms of 100 nS units
//

#define AFS_ONE_SECOND          10000000
#define AFS_ONE_MILLISECOND     10000
#define AFS_ONE_MICROSECOND     10

//
// Fcb lifetime in seconds
//

#define AFS_OBJECT_LIFETIME             600 * AFS_ONE_SECOND

#define AFS_EXTENT_REQUEST_TIME         10 * AFS_ONE_SECOND

//
// How big to make the runs
//
#define AFS_MAX_STACK_IO_RUNS              5

#ifndef FlagOn
#define FlagOn(_F,_SF)        ((_F) & (_SF))
#endif

#ifndef BooleanFlagOn
#define BooleanFlagOn(F,SF)   ((BOOLEAN)(((F) & (SF)) != 0))
#endif

#ifndef SetFlag
#define SetFlag(_F,_SF)       ((_F) |= (_SF))
#endif

#ifndef ClearFlag
#define ClearFlag(_F,_SF)     ((_F) &= ~(_SF))
#endif

#define QuadAlign(Ptr) (                \
    ((((ULONG)(Ptr)) + 7) & 0xfffffff8) \
    )

#define CRC32_POLYNOMIAL     0xEDB88320L;

#define AFS_SERVER_FLUSH_DELAY  (5LL * AFS_ONE_SECOND)
#define AFS_SERVER_PURGE_DELAY  (300LL * AFS_ONE_SECOND)
//
// PURGE_SLEEP is the number of PURGE_DELAYS we wait before we will unilaterally
// give back extents.
//
// If the Service asks us, we will start at PURGE_SLEEP of delays and then work back
//
#define AFS_SERVER_PURGE_SLEEP  6

#define AFS_DIR_ENUM_BUFFER_LEN   (16 * 1024)

//
// IS_BYTE_OFFSET_WRITE_TO_EOF
// liOffset - should be from Irp.StackLocation.Parameters.Write.ByteOffset
// this macro checks to see if the Offset Large_Integer points to the
// special constant value which denotes to start the write at EndOfFile
//
#define IS_BYTE_OFFSET_WRITE_TO_EOF(liOffset) \
    (((liOffset).LowPart == FILE_WRITE_TO_END_OF_FILE) \
      && ((liOffset).HighPart == 0xFFFFFFFF))

//
// Ccb Directory enum flags
//

#define CCB_FLAG_DIR_OF_DIRS_ONLY           0x00000001
#define CCB_FLAG_FULL_DIRECTORY_QUERY       0x00000002
#define CCB_FLAG_MASK_CONTAINS_WILD_CARDS   0x00000004
#define CCB_FLAG_FREE_FULL_PATHNAME         0x00000008
#define CCB_FLAG_RETURN_RELATIVE_ENTRIES    0x00000010
#define CCB_FLAG_DIRECTORY_QUERY_MAPPED     0x00000020
#define CCB_FLAG_MASK_PIOCTL_QUERY          0x00000040
#define CCB_FLAG_MASK_OPENED_REPARSE_POINT  0x00000080
#define CCB_FLAG_INSERTED_CCB_LIST          0x00000100

//
// DirEntry flags
//

#define AFS_DIR_RELEASE_NAME_BUFFER             0x00000001

#define AFS_DIR_ENTRY_CASE_INSENSTIVE_LIST_HEAD 0x00000004
#define AFS_DIR_ENTRY_NOT_IN_PARENT_TREE        0x00000008
#define AFS_DIR_ENTRY_INSERTED_ENUM_LIST        0x00000010
#define AFS_DIR_ENTRY_FAKE                      0x00000020
#define AFS_DIR_RELEASE_TARGET_NAME_BUFFER      0x00000040
#define AFS_DIR_ENTRY_VALID                     0x00000080
#define AFS_DIR_ENTRY_PENDING_DELETE            0x00000100
#define AFS_DIR_ENTRY_DELETED                   0x00000200
#define AFS_DIR_ENTRY_SERVER_SERVICE            0x00000400
#define AFS_DIR_ENTRY_WORKSTATION_SERVICE       0x00000800
#define AFS_DIR_ENTRY_IPC                       0x00001000
#define AFS_DIR_ENTRY_INSERTED_SHORT_NAME       0x00002000

//
// Network provider errors
//

#define WN_SUCCESS                              0L
#define WN_ALREADY_CONNECTED                    85L
#define WN_OUT_OF_MEMORY                        8L
#define WN_NOT_CONNECTED                        2250L
#define WN_BAD_NETNAME                          67L

#define RESOURCE_CONNECTED      0x00000001
#define RESOURCE_GLOBALNET      0x00000002
#define RESOURCE_REMEMBERED     0x00000003
#define RESOURCE_RECENT         0x00000004
#define RESOURCE_CONTEXT        0x00000005

#define RESOURCETYPE_ANY        0x00000000
#define RESOURCETYPE_DISK       0x00000001
#define RESOURCETYPE_PRINT      0x00000002
#define RESOURCETYPE_RESERVED   0x00000008
#define RESOURCETYPE_UNKNOWN    0xFFFFFFFF

#define RESOURCEUSAGE_CONNECTABLE   0x00000001
#define RESOURCEUSAGE_CONTAINER     0x00000002
#define RESOURCEUSAGE_NOLOCALDEVICE 0x00000004
#define RESOURCEUSAGE_SIBLING       0x00000008
#define RESOURCEUSAGE_ATTACHED      0x00000010
#define RESOURCEUSAGE_ALL           (RESOURCEUSAGE_CONNECTABLE | RESOURCEUSAGE_CONTAINER | RESOURCEUSAGE_ATTACHED)
#define RESOURCEUSAGE_RESERVED      0x80000000

#define RESOURCEDISPLAYTYPE_GENERIC        0x00000000
#define RESOURCEDISPLAYTYPE_DOMAIN         0x00000001
#define RESOURCEDISPLAYTYPE_SERVER         0x00000002
#define RESOURCEDISPLAYTYPE_SHARE          0x00000003
#define RESOURCEDISPLAYTYPE_FILE           0x00000004
#define RESOURCEDISPLAYTYPE_GROUP          0x00000005
#define RESOURCEDISPLAYTYPE_NETWORK        0x00000006
#define RESOURCEDISPLAYTYPE_ROOT           0x00000007
#define RESOURCEDISPLAYTYPE_SHAREADMIN     0x00000008
#define RESOURCEDISPLAYTYPE_DIRECTORY      0x00000009
#define RESOURCEDISPLAYTYPE_TREE           0x0000000A
#define RESOURCEDISPLAYTYPE_NDSCONTAINER   0x0000000B

//
// Method for determining the different control device open requests
//

#define AFS_CONTROL_INSTANCE            0x00000001
#define AFS_REDIRECTOR_INSTANCE         0x00000002

//
// Extent flags
//

#define AFS_EXTENT_DIRTY                0x00000001

//
// Extent skip list sizes
//
#define AFS_NUM_EXTENT_LISTS    3

//
// Extents skip lists
//
// We use constant sizes.
//
#define AFS_EXTENT_SIZE         (4*1024)
#define AFS_EXTENTS_LIST        0
//
// A max of 64 extents in ther first skip list
#define AFS_EXTENT_SKIP1_BITS   6

//
// Then 128 bits in the second skip list
#define AFS_EXTENT_SKIP2_BITS   7

//
// This means that the top list skips in steps of 2^25 (=12+6+7) which
// is 32 Mb.  It is to be expected that files which are massively
// larger that this will not be fully mapped.
//
#define AFS_EXTENT_SKIP1_SIZE (AFS_EXTENT_SIZE << AFS_EXTENT_SKIP1_BITS)
#define AFS_EXTENT_SKIP2_SIZE (AFS_EXTENT_SKIP1_SIZE << AFS_EXTENT_SKIP2_BITS)

#define AFS_EXTENTS_MASKS { (AFS_EXTENT_SIZE-1),       \
                            (AFS_EXTENT_SKIP1_SIZE-1), \
                            (AFS_EXTENT_SKIP2_SIZE-1) }

//
// Maximum count to release at a time
//

#define AFS_MAXIMUM_EXTENT_RELEASE_COUNT        100

#define AFS_DIRTY_CHUNK_THRESHOLD               2

// {41966169-3FD7-4392-AFE4-E6A9D0A92C72}  - generated using guidgen.exe
DEFINE_GUID (GUID_SD_AFS_REDIRECTOR_CONTROL_OBJECT,
        0x41966169, 0x3fd7, 0x4392, 0xaf, 0xe4, 0xe6, 0xa9, 0xd0, 0xa9, 0x2c, 0x72);

//
// Debug log length
//

#define AFS_DBG_LOG_LENGTH              256

//
// Debug log flags
//

#define AFS_DBG_LOG_WRAPPED             0x00000001

//
// Connection flags
//

#define AFS_CONNECTION_FLAG_GLOBAL_SHARE        0x00000001

//
// Process CB flags
//

#define AFS_PROCESS_FLAG_IS_64BIT           0x00000001

//
// Maximum number of special share names
//

#define AFS_SPECIAL_SHARE_NAME_COUNT_MAX    10

//
// Device flags
//

#define AFS_DEVICE_FLAG_HIDE_DOT_NAMES          0x00000001
#define AFS_DEVICE_FLAG_REDIRECTOR_SHUTDOWN     0x00000002

//
// Name Array flags
//

#define AFS_NAME_ARRAY_FLAG_ROOT_ELEMENT        0x00000001
#define AFS_NAME_ARRAY_FLAG_REDIRECTION_ELEMENT 0x00000002

//
// Maximum recursion depth
//

#define AFS_MAX_RECURSION_COUNT                 20

//
// LocateNameEntry flags
//

#define AFS_LOCATE_FLAGS_SUBSTITUTE_NAME        0x00000001
#define AFS_LOCATE_FLAGS_NO_MP_TARGET_EVAL      0x00000002
#define AFS_LOCATE_FLAGS_NO_SL_TARGET_EVAL      0x00000004
#define AFS_LOCATE_FLAGS_NO_DFS_LINK_EVAL       0x00000008

//
// Parse flags
//

#define AFS_PARSE_FLAG_FREE_FILE_BUFFER         0x00000001
#define AFS_PARSE_FLAG_ROOT_ACCESS              0x00000002

//
// Reparse tag information
//

//
//  Tag allocated to OpenAFS for DFS by Microsoft
//  GUID: EF21A155-5C92-4470-AB3B-370403D96369
//

#ifndef IO_REPARSE_TAG_OPENAFS_DFS
#define IO_REPARSE_TAG_OPENAFS_DFS              0x00000037L
#endif

#ifndef IO_REPARSE_TAG_SURROGATE
#define IO_REPARSE_TAG_SURROGATE                0x20000000L
#endif

//  {EF21A155-5C92-4470-AB3B-370403D96369}
DEFINE_GUID (GUID_AFS_REPARSE_GUID,
        0xEF21A155, 0x5C92, 0x4470, 0xAB, 0x3B, 0x37, 0x04, 0x03, 0xD9, 0x63, 0x69);

//
// Enumeration constants
//

#define AFS_DIR_ENTRY_INITIAL_DIR_INDEX   (ULONG)-3
#define AFS_DIR_ENTRY_INITIAL_ROOT_INDEX  (ULONG)-1

#define AFS_DIR_ENTRY_PIOCTL_INDEX        (ULONG)-3
#define AFS_DIR_ENTRY_DOT_INDEX           (ULONG)-2
#define AFS_DIR_ENTRY_DOT_DOT_INDEX       (ULONG)-1

//
// Library state flags
//

#define AFS_REDIR_LIB_FLAGS_NONPERSISTENT_CACHE     0x00000001

#endif /* _AFS_DEFINES_H */