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51a732cd2c765a09dbeb17bd0dfb1dce1b21b8d3
mars-flaim/flaim/src/fnlm.cpp
ahodgkinson 3bd585603b OS X cleanup. 
git-svn-id: https://svn.code.sf.net/p/flaim/code/trunk@331 0109f412-320b-0410-ab79-c3e0c5ffbbe6
2006-04-07 22:01:37 +00:00

3947 lines
95 KiB
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//-------------------------------------------------------------------------
// Desc: I/O for Netware OS
// Tabs: 3
//
// Copyright (c) 1998-2003,2005-2006 Novell, Inc. All Rights Reserved.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the GNU General Public
// License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, contact Novell, Inc.
//
// To contact Novell about this file by physical or electronic mail,
// you may find current contact information at www.novell.com
//
// $Id: fnlm.cpp 12362 2006-03-09 12:11:37 -0700 (Thu, 09 Mar 2006) dsanders $
//-------------------------------------------------------------------------
#include "flaimsys.h"
#if defined( FLM_NLM)
#define F_IO_MAX_CREATION_TRIES 10
#define zMAX_COMPONENT_NAME 256
#define zGET_INFO_VARIABLE_DATA_SIZE (zMAX_COMPONENT_NAME * 2)
#define zOK 0 // the operation succeeded
#define zERR_NO_MEMORY 20000 // insufficent memory to complete the request
#define zERR_NOT_SUPPORTED 20011 // the operation is not supported
#define zERR_CONNECTION_NOT_LOGGED_IN 20007 // the connection has not been logged in
#define zERR_END_OF_FILE 20100 // read past the end of file
#define zERR_OUT_OF_SPACE 20103 // no available disk space is left
#define zERR_BAD_FILE_HANDLE 20401 // the file handle is out of range, bad instance, or doesn't exist
#define zERR_INVALID_NAME 20403 // path name is invalid -- bad syntax
#define zERR_INVALID_CHAR_IN_NAME 20404 // path name had an invalid character
#define zERR_INVALID_PATH 20405 // the path is syntactically incorrect
#define zERR_NAME_NOT_FOUND_IN_DIRECTORY 20407 // name does not exist in the direcory being searched
#define zERR_NO_NAMES_IN_PATH 20409 // a NULL file name was given
#define zERR_NO_MORE_NAMES_IN_PATH 20410 // doing a wild search but ran out of names to search
#define zERR_PATH_MUST_BE_FULLY_QUALIFIED 20411 // path name must be fully qualified in this context
#define zERR_FILE_ALREADY_EXISTS 20412 // the given file already exists
#define zERR_NAME_NO_LONGER_VALID 20413 // the dir/file name is no longer valid
#define zERR_DIRECTORY_NOT_EMPTY 20417 // the directory still has files in it
#define zERR_NO_FILES_FOUND 20424 // no files matched the given wildcard pattern
#define zERR_DIR_CANNOT_BE_OPENED 20435 // the requested parent was not found
#define zERR_NO_OPEN_PRIVILEGE 20438 // no the right privileges to open the file
#define zERR_NO_MORE_CONTEXT_HANDLE_IDS 20439 // there are no more available context handle IDs
#define zERR_INVALID_PATH_FORMAT 20441 // the pathFormat is either invalid or unsupported
#define zERR_ALL_FILES_IN_USE 20500 // all files were in use
#define zERR_SOME_FILES_IN_USE 20501 // some of the files were in use
#define zERR_ALL_FILES_READ_ONLY 20502 // all files were READONLY
#define zERR_SOME_FILES_READ_ONLY 20503 // some of the files were READONLY
#define zERR_ALL_NAMES_EXIST 20504 // all of the names already existed
#define zERR_SOME_NAMES_EXIST 20505 // some of the names already existed
#define zERR_NO_RENAME_PRIVILEGE 20506 // you do not have privilege to rename the file
#define zERR_RENAME_DIR_INVALID 20507 // the selected directory may not be renamed
#define zERR_RENAME_TO_OTHER_VOLUME 20508 // a rename/move may not move the beast to a different volume
#define zERR_CANT_RENAME_DATA_STREAMS 20509 // not allowed to rename a data stream
#define zERR_FILE_RENAME_IN_PROGRESS 20510 // the file is already being renamed by a different process
#define zERR_CANT_RENAME_TO_DELETED 20511 // only deleted files may be renamed to a deleted state
#define zERR_HOLE_IN_DIO_FILE 20651 // DIO files cannot have holes
#define zERR_BEYOND_EOF 20652 // DIO files cannot be read beyond EOF
#define zERR_INVALID_PATH_SEPARATOR 20704 // the name space does not support the requested path separator type
#define zERR_VOLUME_SEPARATOR_NOT_SUPPORTED 20705 // the name space does not support volume separators
#define zERR_BAD_VOLUME_NAME 20800 // the given volume name is syntactically incorrect
#define zERR_VOLUME_NOT_FOUND 20801 // the given volume name could not be found
#define zERR_NO_SET_PRIVILEGE 20850 // does not have rights to modify metadata
#define zERR_NO_CREATE_PRIVILEGE 20851 // does not have rights to create an object
#define zERR_ACCESS_DENIED 20859 // authorization/attributes denied access
#define zERR_NO_WRITE_PRIVILEGE 20860 // no granted write privileges
#define zERR_NO_READ_PRIVILEGE 20861 // no granted read privileges
#define zERR_NO_DELETE_PRIVILEGE 20862 // no delete privileges
#define zERR_SOME_NO_DELETE_PRIVILEGE 20863 // on wildcard some do not have delete privileges
#define zERR_NO_SUCH_OBJECT 20867 // no such object in the naming services
#define zERR_CANT_DELETE_OPEN_FILE 20868 // cant delete an open file without rights
#define zERR_NO_CREATE_DELETE_PRIVILEGE 20869 // no delete on create privileges
#define zERR_NO_SALVAGE_PRIVILEGE 20870 // no privileges to salvage this file
#define zERR_FILE_READ_LOCKED 20905 // cant grant read access to the file
#define zERR_FILE_WRITE_LOCKED 20906 // cant grant write access to the file
#define zRR_READ_ACCESS 0x00000001
#define zRR_WRITE_ACCESS 0x00000002
#define zRR_DENY_READ 0x00000004
#define zRR_DENY_WRITE 0x00000008
#define zRR_SCAN_ACCESS 0x00000010
#define zRR_ENABLE_IO_ON_COMPRESSED_DATA 0x00000100
#define zRR_LEAVE_FILE_COMPRESSED 0x00000200
#define zRR_DELETE_FILE_ON_CLOSE 0x00000400
#define zRR_FLUSH_ON_CLOSE 0x00000800
#define zRR_PURGE_IMMEDIATE_ON_CLOSE 0x00001000
#define zRR_DIO_MODE 0x00002000
#define zRR_ALLOW_SECURE_DIRECTORY_ACCESS 0x00020000
#define zRR_TRANSACTION_ACTIVE 0x00100000
#define zRR_READ_ACCESS_TO_SNAPSHOT 0x04000000
#define zRR_DENY_RW_OPENER_CAN_REOPEN 0x08000000
#define zRR_CREATE_WITHOUT_READ_ACCESS 0x10000000
#define zRR_OPENER_CAN_DELETE_WHILE_OPEN 0x20000000
#define zRR_CANT_DELETE_WHILE_OPEN 0x40000000
#define zRR_DONT_UPDATE_ACCESS_TIME 0x80000000
#define zFA_READ_ONLY 0x00000001
#define zFA_HIDDEN 0x00000002
#define zFA_SYSTEM 0x00000004
#define zFA_EXECUTE 0x00000008
#define zFA_SUBDIRECTORY 0x00000010
#define zFA_ARCHIVE 0x00000020
#define zFA_SHAREABLE 0x00000080
#define zFA_SMODE_BITS 0x00000700
#define zFA_NO_SUBALLOC 0x00000800
#define zFA_TRANSACTION 0x00001000
#define zFA_NOT_VIRTUAL_FILE 0x00002000
#define zFA_IMMEDIATE_PURGE 0x00010000
#define zFA_RENAME_INHIBIT 0x00020000
#define zFA_DELETE_INHIBIT 0x00040000
#define zFA_COPY_INHIBIT 0x00080000
#define zFA_IS_ADMIN_LINK 0x00100000
#define zFA_IS_LINK 0x00200000
#define zFA_REMOTE_DATA_INHIBIT 0x00800000
#define zFA_COMPRESS_FILE_IMMEDIATELY 0x02000000
#define zFA_DATA_STREAM_IS_COMPRESSED 0x04000000
#define zFA_DO_NOT_COMPRESS_FILE 0x08000000
#define zFA_CANT_COMPRESS_DATA_STREAM 0x20000000
#define zFA_ATTR_ARCHIVE 0x40000000
#define zFA_VOLATILE 0x80000000
#define zNSPACE_DOS 0
#define zNSPACE_MAC 1
#define zNSPACE_UNIX 2
#define zNSPACE_LONG 4
#define zNSPACE_DATA_STREAM 6
#define zNSPACE_EXTENDED_ATTRIBUTE 7
#define zNSPACE_INVALID (-1)
#define zNSPACE_DOS_MASK (1 << zNSPACE_DOS)
#define zNSPACE_MAC_MASK (1 << zNSPACE_MAC)
#define zNSPACE_UNIX_MASK (1 << zNSPACE_UNIX)
#define zNSPACE_LONG_MASK (1 << zNSPACE_LONG)
#define zNSPACE_DATA_STREAM_MASK (1 << zNSPACE_DATA_STREAM)
#define zNSPACE_EXTENDED_ATTRIBUTE_MASK (1 << zNSPACE_EXTENDED_ATTRIBUTE)
#define zNSPACE_ALL_MASK (0xffffffff)
#define zMODE_VOLUME_ID 0x80000000
#define zMODE_UTF8 0x40000000
#define zMODE_DELETED 0x20000000
#define zMODE_LINK 0x10000000
#define zCREATE_OPEN_IF_THERE 0x00000001
#define zCREATE_TRUNCATE_IF_THERE 0x00000002
#define zCREATE_DELETE_IF_THERE 0x00000004
#define zMATCH_ALL_DERIVED_TYPES 0x00000001
#define zMATCH_HIDDEN 0x1
#define zMATCH_NON_HIDDEN 0x2
#define zMATCH_DIRECTORY 0x4
#define zMATCH_NON_DIRECTORY 0x8
#define zMATCH_SYSTEM 0x10
#define zMATCH_NON_SYSTEM 0x20
#define zMATCH_ALL (~0)
#define zSETSIZE_NON_SPARSE_FILE 0x00000001
#define zSETSIZE_NO_ZERO_FILL 0x00000002
#define zSETSIZE_UNDO_ON_ERR 0x00000004
#define zSETSIZE_PHYSICAL_ONLY 0x00000008
#define zSETSIZE_LOGICAL_ONLY 0x00000010
#define zSETSIZE_COMPRESSED 0x00000020
#define zMOD_FILE_ATTRIBUTES 0x00000001
#define zMOD_CREATED_TIME 0x00000002
#define zMOD_ARCHIVED_TIME 0x00000004
#define zMOD_MODIFIED_TIME 0x00000008
#define zMOD_ACCESSED_TIME 0x00000010
#define zMOD_METADATA_MODIFIED_TIME 0x00000020
#define zMOD_OWNER_ID 0x00000040
#define zMOD_ARCHIVER_ID 0x00000080
#define zMOD_MODIFIER_ID 0x00000100
#define zMOD_METADATA_MODIFIER_ID 0x00000200
#define zMOD_PRIMARY_NAMESPACE 0x00000400
#define zMOD_DELETED_INFO 0x00000800
#define zMOD_MAC_METADATA 0x00001000
#define zMOD_UNIX_METADATA 0x00002000
#define zMOD_EXTATTR_FLAGS 0x00004000
#define zMOD_VOL_ATTRIBUTES 0x00008000
#define zMOD_VOL_NDS_OBJECT_ID 0x00010000
#define zMOD_VOL_MIN_KEEP_SECONDS 0x00020000
#define zMOD_VOL_MAX_KEEP_SECONDS 0x00040000
#define zMOD_VOL_LOW_WATER_MARK 0x00080000
#define zMOD_VOL_HIGH_WATER_MARK 0x00100000
#define zMOD_POOL_ATTRIBUTES 0x00200000
#define zMOD_POOL_NDS_OBJECT_ID 0x00400000
#define zMOD_VOL_DATA_SHREDDING_COUNT 0x00800000
#define zMOD_VOL_QUOTA 0x01000000
/***************************************************************************
Desc:
***************************************************************************/
enum zGetInfoMask_t
{
zGET_STD_INFO = 0x1,
zGET_NAME = 0x2,
zGET_ALL_NAMES = 0x4,
zGET_PRIMARY_NAMESPACE = 0x8,
zGET_TIMES_IN_SECS = 0x10,
zGET_TIMES_IN_MICROS = 0x20,
zGET_IDS = 0x40,
zGET_STORAGE_USED = 0x80,
zGET_BLOCK_SIZE = 0x100,
zGET_COUNTS = 0x200,
zGET_EXTENDED_ATTRIBUTE_INFO = 0x400,
zGET_DATA_STREAM_INFO = 0x800,
zGET_DELETED_INFO = 0x1000,
zGET_MAC_METADATA = 0x2000,
zGET_UNIX_METADATA = 0x4000,
zGET_EXTATTR_FLAGS = 0x8000,
zGET_VOLUME_INFO = 0x10000,
zGET_VOL_SALVAGE_INFO = 0x20000,
zGET_POOL_INFO = 0x40000
};
/***************************************************************************
Desc:
***************************************************************************/
enum
{
zINFO_VERSION_A = 1
};
/***************************************************************************
Desc:
***************************************************************************/
typedef enum FileType_t
{
zFILE_UNKNOWN,
zFILE_REGULAR,
zFILE_EXTENDED_ATTRIBUTE,
zFILE_NAMED_DATA_STREAM,
zFILE_PIPE,
zFILE_VOLUME,
zFILE_POOL,
zFILE_MAX
} FileType_t;
/***************************************************************************
Desc:
***************************************************************************/
typedef struct GUID_t
{
LONG timeLow;
WORD timeMid;
WORD timeHighAndVersion;
BYTE clockSeqHighAndReserved;
BYTE clockSeqLow;
BYTE node[ 6];
} GUID_t;
/***************************************************************************
Desc:
***************************************************************************/
typedef struct zMacInfo_s
{
BYTE finderInfo[32];
BYTE proDOSInfo[6];
BYTE filler[2];
LONG dirRightsMask;
} zMacInfo_s;
/***************************************************************************
Desc:
***************************************************************************/
typedef struct zUnixInfo_s
{
LONG fMode;
LONG rDev;
LONG myFlags;
LONG nfsUID;
LONG nfsGID;
LONG nwUID;
LONG nwGID;
LONG nwEveryone;
LONG nwUIDRights;
LONG nwGIDRights;
LONG nwEveryoneRights;
BYTE acsFlags;
BYTE firstCreated;
FLMINT16 variableSize;
} zUnixInfo_s;
typedef struct zVolumeInfo_s
{
GUID_t volumeID;
GUID_t ndsObjectID;
LONG volumeState;
LONG nameSpaceMask;
struct
{
FLMUINT64 enabled;
FLMUINT64 enableModMask;
FLMUINT64 supported;
} features;
FLMUINT64 maximumFileSize;
FLMUINT64 totalSpaceQuota;
FLMUINT64 numUsedBytes;
FLMUINT64 numObjects;
FLMUINT64 numFiles;
LONG authModelID;
LONG dataShreddingCount;
struct
{
FLMUINT64 purgeableBytes;
FLMUINT64 nonPurgeableBytes;
FLMUINT64 numDeletedFiles;
FLMUINT64 oldestDeletedTime;
LONG minKeepSeconds;
LONG maxKeepSeconds;
LONG lowWaterMark;
LONG highWaterMark;
} salvage;
struct
{
FLMUINT64 numCompressedFiles;
FLMUINT64 numCompDelFiles;
FLMUINT64 numUncompressibleFiles;
FLMUINT64 numPreCompressedBytes;
FLMUINT64 numCompressedBytes;
} comp;
} zVolumeInfo_s;
/***************************************************************************
Desc:
***************************************************************************/
typedef struct zPoolInfo_s
{
GUID_t poolID;
GUID_t ndsObjectID;
LONG poolState;
LONG nameSpaceMask;
struct
{
FLMUINT64 enabled;
FLMUINT64 enableModMask;
FLMUINT64 supported;
} features;
FLMUINT64 totalSpace;
FLMUINT64 numUsedBytes;
FLMUINT64 purgeableBytes;
FLMUINT64 nonPurgeableBytes;
} zPoolInfo_s;
/***************************************************************************
Desc:
***************************************************************************/
typedef struct zInfo_s
{
LONG infoVersion;
FLMINT totalBytes;
FLMINT nextByte;
LONG padding;
FLMUINT64 retMask;
struct
{
FLMUINT64 zid;
FLMUINT64 dataStreamZid;
FLMUINT64 parentZid;
FLMUINT64 logicalEOF;
GUID_t volumeID;
LONG fileType;
LONG fileAttributes;
LONG fileAttributesModMask;
LONG padding;
} std;
struct
{
FLMUINT64 physicalEOF;
FLMUINT64 dataBytes;
FLMUINT64 metaDataBytes;
} storageUsed;
LONG primaryNameSpaceID;
LONG nameStart;
struct
{
LONG numEntries;
LONG fileNameArray;
} names;
struct
{
FLMUINT64 created;
FLMUINT64 archived;
FLMUINT64 modified;
FLMUINT64 accessed;
FLMUINT64 metaDataModified;
} time;
struct
{
GUID_t owner;
GUID_t archiver;
GUID_t modifier;
GUID_t metaDataModifier;
} id;
struct
{
LONG size;
LONG sizeShift;
} blockSize;
struct
{
LONG open;
LONG hardLink;
} count;
struct
{
LONG count;
LONG totalNameSize;
FLMUINT64 totalDataSize;
} dataStream;
struct
{
LONG count;
LONG totalNameSize;
FLMUINT64 totalDataSize;
} extAttr;
struct
{
FLMUINT64 time;
GUID_t id;
} deleted;
struct
{
zMacInfo_s info;
} macNS;
struct
{
zUnixInfo_s info;
LONG offsetToData;
} unixNS;
zVolumeInfo_s vol;
zPoolInfo_s pool;
LONG extAttrUserFlags;
BYTE variableData[zGET_INFO_VARIABLE_DATA_SIZE];
} zInfo_s;
RCODE DfsMapError(
LONG lResult,
RCODE defaultRc);
LONG FlaimToNDSOpenFlags(
FLMUINT uiAccess,
FLMBOOL bDoDirectIo);
FLMUINT FlaimToNSSOpenFlags(
FLMUINT uiAccess,
FLMBOOL bDoDirectIo);
typedef FLMINT (* zROOT_KEY_FUNC)(
FLMUINT connectionID,
FLMINT64 * retRootKey);
typedef FLMINT (* zCLOSE_FUNC)(
FLMINT64 key);
typedef FLMINT (* zCREATE_FUNC)(
FLMINT64 key,
FLMUINT taskID,
FLMUINT64 xid,
FLMUINT nameSpace,
const void * path,
FLMUINT fileType,
FLMUINT64 fileAttributes,
FLMUINT createFlags,
FLMUINT requestedRights,
FLMINT64 * retKey);
typedef FLMINT (* zOPEN_FUNC)(
FLMINT64 key,
FLMUINT taskID,
FLMUINT nameSpace,
const void * path,
FLMUINT requestedRights,
FLMINT64 * retKey);
typedef FLMINT (* zDELETE_FUNC)(
FLMINT64 key,
FLMUINT64 xid,
FLMUINT nameSapce,
const void * path,
FLMUINT match,
FLMUINT deleteFlags);
typedef FLMINT (* zREAD_FUNC)(
FLMINT64 key,
FLMUINT64 xid,
FLMUINT64 startingOffset,
FLMUINT bytesToRead,
void * retBuffer,
FLMUINT * retBytesRead);
typedef FLMINT (* zDIO_READ_FUNC)(
FLMINT64 key,
FLMUINT64 unitOffset,
FLMUINT unitsToRead,
FLMUINT callbackData,
void (*dioReadCallBack)(
FLMUINT reserved,
FLMUINT callbackData,
FLMUINT retStatus),
void * retBuffer);
typedef FLMINT (* zGET_INFO_FUNC)(
FLMINT64 key,
FLMUINT64 getInfoMask,
FLMUINT sizeRetGetInfo,
FLMUINT infoVersion,
zInfo_s * retGetInfo);
typedef FLMINT (* zMODIFY_INFO_FUNC)(
FLMINT64 key,
FLMUINT64 xid,
FLMUINT64 modifyInfoMask,
FLMUINT sizeModifyInfo,
FLMUINT infoVersion,
const zInfo_s * modifyInfo);
typedef FLMINT (* zSET_EOF_FUNC)(
FLMINT64 key,
FLMUINT64 xid,
FLMUINT64 startingOffset,
FLMUINT flags);
typedef FLMINT (* zWRITE_FUNC)(
FLMINT64 key,
FLMUINT64 xid,
FLMUINT64 startingOffset,
FLMUINT bytesToWrite,
const void * buffer,
FLMUINT * retBytesWritten);
typedef FLMINT (* zDIO_WRITE_FUNC)(
FLMINT64 key,
FLMUINT64 unitOffset,
FLMUINT unitsToWrite,
FLMUINT callbackData,
void (*dioWriteCallBack)(
FLMUINT reserved,
FLMUINT callbackData,
FLMUINT retStatus),
const void * buffer);
typedef FLMINT (* zRENAME_FUNC)(
FLMINT64 key,
FLMUINT64 xid,
FLMUINT srcNameSpace,
const void * srcPath,
FLMUINT srcMatchAttributes,
FLMUINT dstNameSpace,
const void * dstPath,
FLMUINT renameFlags);
typedef BOOL (* zIS_NSS_VOLUME_FUNC)(
const char * path);
FSTATIC zIS_NSS_VOLUME_FUNC gv_zIsNSSVolumeFunc = NULL;
FSTATIC zROOT_KEY_FUNC gv_zRootKeyFunc = NULL;
FSTATIC zCLOSE_FUNC gv_zCloseFunc = NULL;
FSTATIC zCREATE_FUNC gv_zCreateFunc = NULL;
FSTATIC zOPEN_FUNC gv_zOpenFunc = NULL;
FSTATIC zDELETE_FUNC gv_zDeleteFunc = NULL;
FSTATIC zREAD_FUNC gv_zReadFunc = NULL;
FSTATIC zDIO_READ_FUNC gv_zDIOReadFunc = NULL;
FSTATIC zGET_INFO_FUNC gv_zGetInfoFunc = NULL;
FSTATIC zMODIFY_INFO_FUNC gv_zModifyInfoFunc = NULL;
FSTATIC zSET_EOF_FUNC gv_zSetEOFFunc = NULL;
FSTATIC zWRITE_FUNC gv_zWriteFunc = NULL;
FSTATIC zDIO_WRITE_FUNC gv_zDIOWriteFunc = NULL;
FSTATIC zRENAME_FUNC gv_zRenameFunc = NULL;
extern RCODE gv_CriticalFSError;
FSTATIC void ConvertToQualifiedNWPath(
const char * pInputPath,
char * pQualifiedPath);
FSTATIC RCODE nssTurnOffRenameInhibit(
const char * pszFileName);
FSTATIC LONG ConvertPathToLNameFormat(
const char * pPath,
LONG * plVolumeID,
FLMBOOL * pbNssVolume,
FLMBYTE * pLNamePath,
LONG * plLNamePathCount);
FSTATIC void DirectIONoWaitCallBack(
LONG unknownAlwaysZero,
LONG callbackData,
LONG completionCode);
FSTATIC void nssDioCallback(
FLMUINT reserved,
FLMUINT UserData,
FLMUINT retStatus);
FSTATIC RCODE MapNSSToFlaimError(
FLMINT lStatus,
RCODE defaultRc);
FLMINT64 gv_NssRootKey;
FLMBOOL gv_bNSSKeyInitialized = FALSE;
/***************************************************************************
Desc: Initialize the root NSS key.
***************************************************************************/
RCODE nssInitialize( void)
{
RCODE rc = FERR_OK;
FLMINT lStatus;
if (!gv_bNSSKeyInitialized)
{
// Import the required NSS functions
if( (gv_zIsNSSVolumeFunc = (zIS_NSS_VOLUME_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x0C" "zIsNSSVolume")) == NULL)
{
// NSS is not available on this server. Jump to exit.
goto Exit;
}
if( (gv_zRootKeyFunc = (zROOT_KEY_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x08" "zRootKey")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zCloseFunc = (zCLOSE_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x06" "zClose")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zCreateFunc = (zCREATE_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x07" "zCreate")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zOpenFunc = (zOPEN_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x05" "zOpen")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zDeleteFunc = (zDELETE_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x07" "zDelete")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zReadFunc = (zREAD_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x05" "zRead")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zDIOReadFunc = (zDIO_READ_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x08" "zDIORead")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zGetInfoFunc = (zGET_INFO_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x08" "zGetInfo")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zModifyInfoFunc = (zMODIFY_INFO_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x0B" "zModifyInfo")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zSetEOFFunc = (zSET_EOF_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x07" "zSetEOF")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zWriteFunc = (zWRITE_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x06" "zWrite")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zDIOWriteFunc = (zDIO_WRITE_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x09" "zDIOWrite")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
if( (gv_zRenameFunc = (zRENAME_FUNC)ImportPublicSymbol(
(unsigned long)f_getNLMHandle(),
(unsigned char *)"\x07" "zRename")) == NULL)
{
flmAssert( 0);
rc = RC_SET( FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
// Get the NSS root key
if ((lStatus = gv_zRootKeyFunc( 0, &gv_NssRootKey)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
gv_bNSSKeyInitialized = TRUE;
}
Exit:
return( rc);
}
/***************************************************************************
Desc: Close the root NSS key.
***************************************************************************/
void nssUninitialize( void)
{
if (gv_bNSSKeyInitialized)
{
(void)gv_zCloseFunc( gv_NssRootKey);
gv_bNSSKeyInitialized = FALSE;
}
}
/***************************************************************************
Desc: Maps NDS errors to IO errors.
fix: The set of return codes returned by the NDS I/O functions (like
NDSOpenStreamFile) is defined in "nw500\errors.h" Unfortunately,
some of the names used for the return codes are used in other include
files. Because of the conflict, it has been decided to use the
integers associated with the names, rather than the names
themselves. This needs to be fixed.
***************************************************************************/
RCODE MapNWtoFlaimError(
LONG lResult,
RCODE defaultRc
)
{
RCODE rc;
switch (lResult)
{
case 128: // ERR_LOCK_FAIL
case 147: // ERR_NO_READ_PRIVILEGE
case 148: // ERR_NO_WRITE_PRIVILEGE
case 168: // ERR_ACCESS_DENIED
rc = RC_SET( FERR_IO_ACCESS_DENIED);
break;
case 136: //ERR_INVALID_FILE_HANDLE
rc = RC_SET( FERR_IO_BAD_FILE_HANDLE);
break;
case 001: //ERR_INSUFFICIENT_SPACE
case 153: //ERR_DIRECTORY_FULL
rc = RC_SET( FERR_IO_DISK_FULL);
break;
case 130: //ERR_NO_OPEN_PRIVILEGE
case 165: //ERR_INVALID_OPENCREATE_MODE
rc = RC_SET( FERR_IO_OPEN_ERR);
break;
case 158: //ERR_BAD_FILE_NAME
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
break;
case 129: //ERR_OUT_OF_HANDLES
rc = RC_SET( FERR_IO_TOO_MANY_OPEN_FILES);
break;
case 139: //ERR_NO_RENAME_PRIVILEGE
case 154: //ERR_RENAME_ACROSS_VOLUME
case 164: //ERR_RENAME_DIR_INVALID
rc = RC_SET( FERR_IO_RENAME_FAILURE);
break;
case 222: //ERR_BAD_PASSWORD
case 223: //ERR_PASSWORD_EXPIRED
rc = RC_SET( FERR_IO_INVALID_PASSWORD);
break;
case 156: //ERR_INVALID_PATH
rc = RC_SET( FERR_IO_INVALID_PATH);
break;
case 122: //ERR_CONNECTION_ALREADY_TEMPORARY
case 123: //ERR_CONNECTION_ALREADY_LOGGED_IN
case 124: //ERR_CONNECTION_NOT_AUTHENTICATED
case 125: //ERR_CONNECTION_NOT_LOGGED_IN
case 224: //ERR_NO_LOGIN_CONNECTIONS_AVAILABLE
rc = RC_SET( FERR_IO_CONNECT_ERROR);
break;
default:
rc = RC_SET( defaultRc);
break;
}
return( rc );
}
/***************************************************************************
Desc: Maps NSS errors to IO errors.
***************************************************************************/
FSTATIC RCODE MapNSSToFlaimError(
FLMINT lStatus,
RCODE defaultRc)
{
RCODE rc;
switch (lStatus)
{
case zERR_FILE_ALREADY_EXISTS:
case zERR_DIRECTORY_NOT_EMPTY:
case zERR_DIR_CANNOT_BE_OPENED:
case zERR_NO_SET_PRIVILEGE:
case zERR_NO_CREATE_PRIVILEGE:
case zERR_ACCESS_DENIED:
case zERR_NO_WRITE_PRIVILEGE:
case zERR_NO_READ_PRIVILEGE:
case zERR_NO_DELETE_PRIVILEGE:
case zERR_SOME_NO_DELETE_PRIVILEGE:
case zERR_CANT_DELETE_OPEN_FILE:
case zERR_NO_CREATE_DELETE_PRIVILEGE:
case zERR_NO_SALVAGE_PRIVILEGE:
case zERR_FILE_READ_LOCKED:
case zERR_FILE_WRITE_LOCKED:
rc = RC_SET( FERR_IO_ACCESS_DENIED);
break;
case zERR_BAD_FILE_HANDLE:
rc = RC_SET( FERR_IO_BAD_FILE_HANDLE);
break;
case zERR_OUT_OF_SPACE:
rc = RC_SET( FERR_IO_DISK_FULL);
break;
case zERR_NO_OPEN_PRIVILEGE:
rc = RC_SET( FERR_IO_OPEN_ERR);
break;
case zERR_NAME_NOT_FOUND_IN_DIRECTORY:
case zERR_NO_FILES_FOUND:
case zERR_VOLUME_NOT_FOUND:
case zERR_NO_SUCH_OBJECT:
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
break;
case zERR_NO_MORE_CONTEXT_HANDLE_IDS:
rc = RC_SET( FERR_IO_TOO_MANY_OPEN_FILES);
break;
case zERR_ALL_FILES_IN_USE:
case zERR_SOME_FILES_IN_USE:
case zERR_ALL_FILES_READ_ONLY:
case zERR_SOME_FILES_READ_ONLY:
case zERR_ALL_NAMES_EXIST:
case zERR_SOME_NAMES_EXIST:
case zERR_NO_RENAME_PRIVILEGE:
case zERR_RENAME_DIR_INVALID:
case zERR_RENAME_TO_OTHER_VOLUME:
case zERR_CANT_RENAME_DATA_STREAMS:
case zERR_FILE_RENAME_IN_PROGRESS:
case zERR_CANT_RENAME_TO_DELETED:
rc = RC_SET( FERR_IO_RENAME_FAILURE);
break;
case zERR_INVALID_NAME:
case zERR_INVALID_CHAR_IN_NAME:
case zERR_INVALID_PATH:
case zERR_NO_NAMES_IN_PATH:
case zERR_NO_MORE_NAMES_IN_PATH:
case zERR_PATH_MUST_BE_FULLY_QUALIFIED:
case zERR_NAME_NO_LONGER_VALID:
case zERR_INVALID_PATH_FORMAT:
case zERR_INVALID_PATH_SEPARATOR:
case zERR_VOLUME_SEPARATOR_NOT_SUPPORTED:
case zERR_BAD_VOLUME_NAME:
rc = RC_SET( FERR_IO_INVALID_PATH);
break;
case zERR_CONNECTION_NOT_LOGGED_IN:
rc = RC_SET( FERR_IO_CONNECT_ERROR);
break;
case zERR_NO_MEMORY:
rc = RC_SET( FERR_MEM);
break;
case zERR_NOT_SUPPORTED:
rc = RC_SET( FERR_NOT_IMPLEMENTED);
break;
case zERR_END_OF_FILE:
case zERR_BEYOND_EOF:
rc = RC_SET( FERR_IO_END_OF_FILE);
break;
default:
rc = RC_SET( defaultRc);
break;
}
return( rc );
}
/***************************************************************************
Desc: Maps direct IO errors to IO errors.
fix: we shouldn't have 2 copies of this function. this is just temporary.
long term, we need to make the FDFS.CPP version public.
***************************************************************************/
RCODE DfsMapError(
LONG lResult,
RCODE defaultRc
)
{
switch (lResult)
{
case DFSHoleInFileError:
case DFSOperationBeyondEndOfFile:
return( RC_SET( FERR_IO_END_OF_FILE));
case DFSHardIOError:
case DFSInvalidFileHandle:
return( RC_SET( FERR_IO_BAD_FILE_HANDLE));
case DFSNoReadPrivilege:
return( RC_SET( FERR_IO_ACCESS_DENIED));
case DFSInsufficientMemory:
return( RC_SET( FERR_MEM));
default:
return( RC_SET( defaultRc));
}
}
/****************************************************************************
Desc: Map flaim I/O flags to NDS I/O flags
****************************************************************************/
LONG FlaimToNDSOpenFlags(
FLMUINT uiAccess,
FLMBOOL bDoDirectIo
)
{
LONG lFlags = NO_RIGHTS_CHECK_ON_OPEN_BIT | ALLOW_SECURE_DIRECTORY_ACCESS_BIT;
if (uiAccess & (F_IO_RDONLY | F_IO_RDWR))
{
lFlags |= READ_ACCESS_BIT;
}
if (uiAccess & F_IO_RDWR)
{
lFlags |= WRITE_ACCESS_BIT;
}
if (uiAccess & F_IO_SH_DENYRW )
{
lFlags |= DENY_READ_BIT;
}
if (uiAccess & (F_IO_SH_DENYWR | F_IO_SH_DENYRW))
{
lFlags |= DENY_WRITE_BIT;
}
if (bDoDirectIo)
{
lFlags |= NEVER_READ_AHEAD_BIT;
}
return( lFlags );
}
/****************************************************************************
Desc: Map flaim I/O flags to NDS I/O flags for NSS volumes
****************************************************************************/
FLMUINT FlaimToNSSOpenFlags(
FLMUINT uiAccess,
FLMBOOL bDoDirectIo)
{
FLMUINT lFlags = zRR_ALLOW_SECURE_DIRECTORY_ACCESS |
zRR_CANT_DELETE_WHILE_OPEN;
if (uiAccess & (F_IO_RDONLY | F_IO_RDWR))
{
lFlags |= zRR_READ_ACCESS;
}
if (uiAccess & F_IO_RDWR)
{
lFlags |= zRR_WRITE_ACCESS;
}
if (uiAccess & F_IO_SH_DENYRW)
{
lFlags |= zRR_DENY_READ;
}
if (uiAccess & (F_IO_SH_DENYWR | F_IO_SH_DENYRW))
{
lFlags |= zRR_DENY_WRITE;
}
if (bDoDirectIo)
{
lFlags |= zRR_DIO_MODE;
}
return( lFlags );
}
/****************************************************************************
Desc: Map flaim I/O flags to NetWare I/O flags
****************************************************************************/
LONG FlaimToNWOpenFlags(
FLMUINT uiAccess,
FLMBOOL bDoDirectIo
)
{
LONG lFlags = 0;
if (uiAccess & (F_IO_RDONLY | F_IO_RDWR))
{
lFlags |= READ_ACCESS_BIT;
}
if (uiAccess & F_IO_RDWR)
{
lFlags |= WRITE_ACCESS_BIT;
}
if (uiAccess & F_IO_SH_DENYRW )
{
lFlags |= DENY_READ_BIT;
}
if (uiAccess & (F_IO_SH_DENYWR | F_IO_SH_DENYRW))
{
lFlags |= DENY_WRITE_BIT;
}
if (bDoDirectIo)
{
lFlags |= NEVER_READ_AHEAD_BIT;
}
return( lFlags );
}
/****************************************************************************
Desc: Default Constructor for F_FileHdl class
****************************************************************************/
F_FileHdlImp::F_FileHdlImp()
{
// Should call the base class constructor automatically.
m_lFileHandle = -1;
m_lOpenAttr = 0;
m_uiCurrentPos = 0;
m_lVolumeID = F_NW_DEFAULT_VOLUME_NUMBER;
m_bDoSuballocation = FALSE;
m_lLNamePathCount = 0;
m_pszIoPath = NULL;
m_uiExtendSize = 0;
m_uiMaxAutoExtendSize = gv_FlmSysData.uiMaxFileSize;
// Direct IO members
m_bDoDirectIO = FALSE; // TRUE = do direct IO-style read/writes
m_lSectorsPerBlock = 0;
m_lMaxBlocks = 0;
m_bNSS = FALSE;
m_bNSSFileOpen = FALSE;
}
/***************************************************************************
Desc: Open or create a file.
***************************************************************************/
RCODE F_FileHdlImp::OpenOrCreate(
const char * pFileName,
FLMUINT uiAccess,
FLMBOOL bCreateFlag)
{
RCODE rc = FERR_OK;
LONG unused;
void * unused2;
char * pszQualifiedPath = NULL;
LONG lErrorCode;
FLMBYTE * pTmpLNamePath;
char * pSaveFileName;
FLMBYTE * pLNamePath;
LONG * plLNamePathCount;
LONG LNamePathCount;
struct VolumeInformationStructure *
pVolumeInfo;
char * pszTemp;
char * pIoDirPath;
FLMBOOL bNssVolume = FALSE;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
m_bDoDirectIO = (uiAccess & F_IO_DIRECT) ? TRUE : FALSE;
if( uiAccess & F_IO_DELETE_ON_CLOSE)
{
if( !m_pszIoPath)
{
if( RC_BAD( rc = f_alloc( F_PATH_MAX_SIZE, &m_pszIoPath)))
{
goto Exit;
}
}
f_strcpy( m_pszIoPath, pFileName);
m_bDeleteOnClose = TRUE;
}
else
{
m_bDeleteOnClose = FALSE;
}
if (RC_BAD( rc = f_alloc(
(FLMUINT)(F_PATH_MAX_SIZE +
F_PATH_MAX_SIZE +
F_PATH_MAX_SIZE +
F_PATH_MAX_SIZE +
sizeof( struct VolumeInformationStructure) +
F_PATH_MAX_SIZE),
&pszQualifiedPath)))
{
goto Exit;
}
pTmpLNamePath = (((FLMBYTE *)pszQualifiedPath) + F_PATH_MAX_SIZE);
pSaveFileName = (((char *)pTmpLNamePath) + F_PATH_MAX_SIZE);
pIoDirPath = (((char *)pSaveFileName) + F_PATH_MAX_SIZE);
pVolumeInfo = (struct VolumeInformationStructure *)
(((char *)pIoDirPath) + F_PATH_MAX_SIZE);
pszTemp = (char *)(((char *)(pVolumeInfo)) +
sizeof( struct VolumeInformationStructure));
/* Save the file name in case we have to create the directory. */
if((bCreateFlag) && (uiAccess & F_IO_CREATE_DIR))
{
f_strcpy( pSaveFileName, pFileName);
}
if( !m_pszIoPath)
{
pLNamePath = pTmpLNamePath;
plLNamePathCount = &LNamePathCount;
}
else
{
pLNamePath = (FLMBYTE *)m_pszIoPath;
plLNamePathCount = &m_lLNamePathCount;
}
ConvertToQualifiedNWPath( pFileName, pszQualifiedPath);
lErrorCode = ConvertPathToLNameFormat(
pszQualifiedPath,
&m_lVolumeID,
&bNssVolume,
pLNamePath,
plLNamePathCount);
if( lErrorCode != 0)
{
rc = MapNWtoFlaimError( lErrorCode, FERR_PARSING_FILE_NAME);
goto Exit;
}
// Determine if the volume is NSS or not
if (gv_bNSSKeyInitialized && bNssVolume)
{
m_bNSS = TRUE;
}
if ( m_bDoDirectIO )
{
if (!m_bNSS)
{
lErrorCode =
ReturnVolumeMappingInformation( m_lVolumeID, pVolumeInfo);
if (lErrorCode != 0)
{
rc = DfsMapError( lErrorCode, FERR_INITIALIZING_IO_SYSTEM);
goto Exit;
}
m_lSectorsPerBlock = (LONG)(pVolumeInfo->VolumeAllocationUnitSizeInBytes /
NLM_SECTOR_SIZE);
m_lMaxBlocks = (LONG)(gv_FlmSysData.uiMaxFileSize /
(FLMUINT)pVolumeInfo->VolumeAllocationUnitSizeInBytes);
}
else
{
m_lMaxBlocks = (LONG)(gv_FlmSysData.uiMaxFileSize / (FLMUINT)65536);
}
}
/*
Set up the file characteristics requested by caller.
*/
if (bCreateFlag)
{
// File is to be created
if (NWTestIfFileExists( pszQualifiedPath ) == FERR_OK)
{
if (uiAccess & F_IO_EXCL)
{
rc = RC_SET( FERR_IO_ACCESS_DENIED);
goto Exit;
}
(void)NWDeleteFile( pszQualifiedPath);
}
}
/* Try to create or open the file */
if (m_bNSS)
{
FLMINT lStatus;
if (bCreateFlag)
{
FLMUINT64 qFileAttr;
qFileAttr = (FLMUINT64)(((m_bDoSuballocation)
? (FLMUINT)(zFA_DO_NOT_COMPRESS_FILE)
: (FLMUINT)(zFA_NO_SUBALLOC |
zFA_DO_NOT_COMPRESS_FILE)) |
zFA_IMMEDIATE_PURGE);
Retry_NSS_Create:
m_lOpenAttr = FlaimToNSSOpenFlags( uiAccess, m_bDoDirectIO);
if ((lStatus = gv_zCreateFunc( gv_NssRootKey, 1, 0,
zNSPACE_LONG | zMODE_UTF8, pszQualifiedPath, zFILE_REGULAR,
qFileAttr, zCREATE_DELETE_IF_THERE, (FLMUINT)m_lOpenAttr,
&m_NssKey)) != zOK)
{
if (uiAccess & F_IO_CREATE_DIR)
{
uiAccess &= ~F_IO_CREATE_DIR;
// Remove the file name for which we are creating the directory.
if( f_pathReduce( pSaveFileName, pIoDirPath, pszTemp) == FERR_OK)
{
F_FileSystemImp FileSystem;
if (RC_OK( FileSystem.CreateDir( pIoDirPath)))
goto Retry_NSS_Create;
}
}
rc = MapNSSToFlaimError( lStatus,
(RCODE)(m_bDoDirectIO
? (RCODE)FERR_DIRECT_CREATING_FILE
: (RCODE)FERR_CREATING_FILE));
goto Exit;
}
}
else
{
m_lOpenAttr = FlaimToNSSOpenFlags( uiAccess, m_bDoDirectIO);
if ((lStatus = gv_zOpenFunc(
gv_NssRootKey, // FLMINT64 key
1, // FLMUINT taskID
zNSPACE_LONG | zMODE_UTF8, // FLMUINT nameSpace
pszQualifiedPath, // const void * path
(FLMUINT)m_lOpenAttr, // FLMUINT requestedRights
&m_NssKey)) != zOK)
{
rc = MapNSSToFlaimError( lStatus,
(RCODE)(m_bDoDirectIO
? (RCODE)FERR_DIRECT_OPENING_FILE
: (RCODE)FERR_OPENING_FILE));
goto Exit;
}
}
m_bNSSFileOpen = TRUE;
}
else
{
if (bCreateFlag)
{
m_lOpenAttr = (LONG)(((m_bDoSuballocation)
? (LONG)(DO_NOT_COMPRESS_FILE_BIT)
: (LONG)(NO_SUBALLOC_BIT |
DO_NOT_COMPRESS_FILE_BIT)) |
IMMEDIATE_PURGE_BIT);
Retry_Create:
lErrorCode = CreateFile(
0, // Connection ID
1, // Task ID
m_lVolumeID, // Volume ID
0, // (path base) 0 because we supply fully-qualified path
(BYTE *)pLNamePath,// LNAME-array format path
*plLNamePathCount, // LNAME-array size
LONGNameSpace, // LONGNameSpace
m_lOpenAttr,
0xff, // 0xff, 0, DELETE_FILE_ON_CREATE_BIT, READ_ACCESS_BIT|WRITE_ACCESS_BIT
PrimaryDataStream, // PrimaryDataStream
&m_lFileHandle,
&unused, // return the directory number
&unused2 // union DirUnion *Entry;
);
if ((lErrorCode != 0) && (uiAccess & F_IO_CREATE_DIR))
{
uiAccess &= ~F_IO_CREATE_DIR;
/* Remove the file name for which we are creating the directory. */
if( f_pathReduce( pSaveFileName, pIoDirPath, pszTemp) == FERR_OK)
{
F_FileSystemImp FileSystem;
if (RC_OK( FileSystem.CreateDir( pIoDirPath)))
goto Retry_Create;
}
}
// Too many error codes map to 255, so we put in a special
// case check here.
if( lErrorCode == 255)
{
rc = RC_SET( FERR_IO_ACCESS_DENIED);
goto Exit;
}
}
else
{
m_lOpenAttr = FlaimToNWOpenFlags(uiAccess, m_bDoDirectIO);
lErrorCode = OpenFile(
0, // Connection ID
1, // Task ID
m_lVolumeID, // Volume ID
0, // (path base) 0 because we supply fully-qualified path
(BYTE *)pLNamePath, // LNAME-array format path
*plLNamePathCount, // LNAME-array size
LONGNameSpace, // LONGNameSpace
0, // ?? LONG MatchBits,
m_lOpenAttr,
PrimaryDataStream,
&m_lFileHandle,
&unused, // return the directory number
&unused2 // union DirUnion *Entry;
);
/*
Too many error codes map to 255, so we put in a special
case check here.
*/
if( lErrorCode == 255)
{
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
goto Exit;
}
}
/* Check if the file operation was successful */
if ( lErrorCode != 0)
{
rc = MapNWtoFlaimError( lErrorCode,
(RCODE)(bCreateFlag
? (RCODE)(m_bDoDirectIO
? (RCODE)FERR_DIRECT_CREATING_FILE
: (RCODE)FERR_CREATING_FILE)
: (RCODE)(m_bDoDirectIO
? (RCODE)FERR_DIRECT_OPENING_FILE
: (RCODE)FERR_OPENING_FILE)));
goto Exit;
}
if (bCreateFlag)
{
/* Close and reopen the file after creating it. */
// Revoke the file handle rights and close the file
// (signified by passing 2 for the QueryFlag parameter).
// If this call fails and returns a 255 error, it may
// indicate that the FILESYS.NLM being used on the server
// does not implement option 2 for the QueryFlag parameter.
// In this case, we will default to our old behavior
// and simply call CloseFile. This, potentially, will
// not free all of the lock objects and could result in
// a memory leak in filesys.nlm. However, we want to
// at least make sure that there is a corresponding
// RevokeFileHandleRights or CloseFile call for every
// file open / create call.
if( (lErrorCode = RevokeFileHandleRights( 0, 1,
m_lFileHandle, 2, m_lOpenAttr & 0x0000000F, &unused)) == 0xFF)
{
lErrorCode = CloseFile( 0, 1, m_lFileHandle);
}
m_lOpenAttr = 0;
if ( lErrorCode != 0 )
{
rc = MapNWtoFlaimError(lErrorCode, FERR_CLOSING_FILE);
goto Exit;
}
m_lOpenAttr = FlaimToNWOpenFlags(uiAccess, m_bDoDirectIO);
lErrorCode = OpenFile( /* moved to vswitch.386 */
0, // Connection ID
1, // Task ID
m_lVolumeID, // Volume ID
0, // (path base) 0 because we supply fully-qualified path
(BYTE *)pLNamePath,// LNAME-array format path
*plLNamePathCount,// LNAME-array size
LONGNameSpace, // LONGNameSpace
0, // ?? LONG MatchBits,
m_lOpenAttr,
PrimaryDataStream,
&m_lFileHandle,
&unused, // return the directory number
&unused2 // union DirUnion *Entry;
);
if ( lErrorCode != 0 )
{
/*
Too many error codes map to 255, so we put in a special
case check here.
*/
if( lErrorCode == 255)
{
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
}
else
{
rc = MapNWtoFlaimError( lErrorCode,
(RCODE)(m_bDoDirectIO
? (RCODE)FERR_DIRECT_OPENING_FILE
: (RCODE)FERR_OPENING_FILE));
}
goto Exit;
}
}
if ( m_bDoDirectIO )
{
lErrorCode = SwitchToDirectFileMode(0, m_lFileHandle);
if (lErrorCode != 0)
{
if (RevokeFileHandleRights( 0, 1,
m_lFileHandle, 2, m_lOpenAttr & 0x0000000F, &unused) == 0xFF)
{
(void)CloseFile( 0, 1, m_lFileHandle);
}
rc = MapNWtoFlaimError( lErrorCode,
(RCODE)(bCreateFlag
? (RCODE)FERR_DIRECT_CREATING_FILE
: (RCODE)FERR_DIRECT_OPENING_FILE));
goto Exit;
}
}
}
Exit:
if (RC_BAD( rc))
{
m_lFileHandle = -1;
m_lOpenAttr = 0;
m_bNSSFileOpen = FALSE;
}
if (pszQualifiedPath)
{
f_free( &pszQualifiedPath);
}
return( rc );
}
/****************************************************************************
Desc: Create a file
****************************************************************************/
RCODE F_FileHdlImp::Create(
const char * pIoPath,
FLMUINT uiIoFlags)
{
RCODE rc = FERR_OK;
flmAssert( m_bFileOpened == FALSE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if( RC_BAD( rc = OpenOrCreate( pIoPath, uiIoFlags, TRUE)))
{
goto Exit;
}
m_bFileOpened = TRUE;
m_uiCurrentPos = 0;
m_bOpenedExclusive = (uiIoFlags & F_IO_SH_DENYRW) ? TRUE : FALSE;
Exit:
return( rc);
}
/****************************************************************************
Desc:
****************************************************************************/
RCODE F_FileHdlImp::CreateUnique(
char * pIoPath,
const char * pszFileExtension,
FLMUINT uiIoFlags)
{
RCODE rc = FERR_OK;
char * pszTmp;
FLMBOOL bModext = TRUE;
FLMUINT uiBaseTime = 0;
char ucHighByte = 0;
char ucFileName[ F_FILENAME_SIZE];
char szDirPath[ F_PATH_MAX_SIZE];
char szTmpPath[ F_PATH_MAX_SIZE];
FLMUINT uiCount;
f_memset( ucFileName, 0, sizeof( ucFileName));
flmAssert( m_bFileOpened == FALSE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
f_strcpy( szDirPath, pIoPath);
// Search backwards replacing trailing spaces with NULLs.
pszTmp = szDirPath;
pszTmp += (f_strlen( pszTmp) - 1);
while ((*pszTmp == 0x20) && pszTmp >= szDirPath)
{
*pszTmp = 0;
pszTmp--;
}
/* Append a backslash if one isn't already there. */
if (pszTmp >= szDirPath && *pszTmp != '\\')
{
pszTmp++;
*pszTmp++ = '\\';
}
else
{
pszTmp++;
}
*pszTmp = 0;
if ((pszFileExtension) && (f_strlen( pszFileExtension) >= 3))
{
bModext = FALSE;
}
uiCount = 0;
do
{
f_pathCreateUniqueName( &uiBaseTime, ucFileName, pszFileExtension,
&ucHighByte, bModext);
f_strcpy( szTmpPath, szDirPath);
f_pathAppend( szTmpPath, ucFileName);
rc = Create( szTmpPath, uiIoFlags | F_IO_EXCL);
if (rc == FERR_IO_DISK_FULL)
{
(void)NWDeleteFile( szTmpPath);
goto Exit;
}
if ((rc == FERR_IO_PATH_NOT_FOUND) || (rc == FERR_IO_INVALID_PASSWORD))
{
goto Exit;
}
} while ((rc != FERR_OK) && (uiCount++ < F_IO_MAX_CREATION_TRIES));
// Check if the path was created
if ((uiCount >= F_IO_MAX_CREATION_TRIES) && (rc != FERR_OK))
{
rc = RC_SET( FERR_IO_PATH_CREATE_FAILURE);
goto Exit;
}
m_bFileOpened = TRUE;
m_bOpenedExclusive = (uiIoFlags & F_IO_SH_DENYRW) ? TRUE : FALSE;
// Created file name needs to be returned.
f_strcpy( pIoPath, szTmpPath);
Exit:
return( rc);
}
/****************************************************************************
Desc: Open a file
****************************************************************************/
RCODE F_FileHdlImp::Open(
const char * pIoPath,
FLMUINT uiIoFlags)
{
RCODE rc = FERR_OK;
FLMUINT uiStartTime;
FLMUINT ui15Secs;
FLMUINT uiCurrTime;
flmAssert( m_bFileOpened == FALSE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
// Loop on error open conditions.
FLM_SECS_TO_TIMER_UNITS(15 /*seconds*/, ui15Secs);
uiStartTime = FLM_GET_TIMER();
do
{
if( RC_OK( rc = OpenOrCreate( pIoPath, uiIoFlags, FALSE)))
break;
if( rc != FERR_IO_TOO_MANY_OPEN_FILES)
{
goto Exit;
}
// If for some reason we cannot open the file, then
// try to close some other file handle in the list.
if( RC_BAD( gv_FlmSysData.pFileHdlMgr->ReleaseOneAvail()))
{
goto Exit;
}
f_sleep( 50);
uiCurrTime = FLM_GET_TIMER();
} while( FLM_ELAPSED_TIME( uiCurrTime, uiStartTime) < ui15Secs);
if ( RC_BAD(rc) )
{
goto Exit;
}
m_bFileOpened = TRUE;
m_uiCurrentPos = 0;
m_bOpenedReadOnly = (uiIoFlags & F_IO_RDONLY) ? TRUE : FALSE;
m_bOpenedExclusive = (uiIoFlags & F_IO_SH_DENYRW) ? TRUE : FALSE;
Exit:
return( rc);
}
/****************************************************************************
Desc: Close a file
****************************************************************************/
RCODE F_FileHdlImp::Close()
{
LONG unused;
FLMBOOL bDeleteAllowed = TRUE;
RCODE rc = FERR_OK;
if( !m_bFileOpened)
{
goto Exit;
}
if( RC_BAD( rc = GET_FS_ERROR()))
{
bDeleteAllowed = FALSE;
}
if (m_bNSS)
{
if (m_bNSSFileOpen)
{
(void)gv_zCloseFunc( m_NssKey);
m_bNSSFileOpen = FALSE;
}
}
else
{
// Revoke the file handle rights and close the file
// (signified by passing 2 for the QueryFlag parameter).
// If this call fails and returns a 255 error, it may
// indicate that the FILESYS.NLM being used on the server
// does not implement option 2 for the QueryFlag parameter.
// In this case, we will default to our old behavior
// and simply call CloseFile. This, potentially, will
// not free all of the lock objects and could result in
// a memory leak in filesys.nlm. However, we want to
// at least make sure that there is a corresponding
// RevokeFileHandleRights or CloseFile call for every
// file open / create call.
if( RevokeFileHandleRights( 0, 1,
m_lFileHandle, 2, m_lOpenAttr & 0x0000000F, &unused) == 0xFF)
{
(void)CloseFile( 0, 1, m_lFileHandle);
}
}
m_lOpenAttr = 0;
m_lFileHandle = -1;
m_bFileOpened = m_bOpenedReadOnly = m_bOpenedExclusive = FALSE;
if( m_bDeleteOnClose)
{
if( bDeleteAllowed)
{
if (m_bNSS)
{
(void)gv_zDeleteFunc( gv_NssRootKey, 0, zNSPACE_LONG | zMODE_UTF8,
m_pszIoPath, zMATCH_ALL, 0);
}
else
{
(void)EraseFile( 0, 1, m_lVolumeID, 0, (BYTE *)m_pszIoPath,
m_lLNamePathCount, LONGNameSpace, 0);
}
}
m_bDeleteOnClose = FALSE;
m_lLNamePathCount = 0;
}
if( m_pszIoPath)
{
f_free( &m_pszIoPath);
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Read from a file
****************************************************************************/
RCODE F_FileHdlImp::Read(
FLMUINT uiReadOffset,
FLMUINT uiBytesToRead,
void * pvBuffer,
FLMUINT * puiBytesReadRV)
{
RCODE rc;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if ( m_bDoDirectIO )
{
rc = _DirectIORead( uiReadOffset, uiBytesToRead, pvBuffer, puiBytesReadRV );
}
else
{
rc = _Read( uiReadOffset, uiBytesToRead, pvBuffer, puiBytesReadRV );
}
Exit:
return( rc );
}
/****************************************************************************
Desc: Read from a file
****************************************************************************/
RCODE F_FileHdlImp::_Read(
FLMUINT uiReadOffset,
FLMUINT uiBytesToRead,
void * pvBuffer,
FLMUINT * puiBytesReadRV)
{
RCODE rc = FERR_OK;
FCBType * fcb;
LONG lBytesRead;
LONG lErr;
flmAssert( m_bFileOpened == TRUE);
if( puiBytesReadRV)
{
*puiBytesReadRV = 0;
}
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (uiReadOffset == F_IO_CURRENT_POS)
uiReadOffset = m_uiCurrentPos;
if (m_bNSS)
{
FLMINT lStatus;
FLMUINT nBytesRead;
if ((lStatus = gv_zReadFunc( m_NssKey, 0, (FLMUINT64)uiReadOffset,
(FLMUINT)uiBytesToRead, pvBuffer,
&nBytesRead)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_READING_FILE);
goto Exit;
}
if( puiBytesReadRV)
{
*puiBytesReadRV = (FLMUINT)nBytesRead;
}
if ((FLMUINT)nBytesRead < uiBytesToRead)
{
rc = RC_SET( FERR_IO_END_OF_FILE);
}
m_uiCurrentPos = uiReadOffset + (FLMUINT)nBytesRead;
}
else
{
lErr = MapFileHandleToFCB( m_lFileHandle, &fcb );
if ( lErr != 0 )
{
rc = MapNWtoFlaimError( lErr, FERR_SETTING_UP_FOR_READ);
goto Exit;
}
lErr = ReadFile( fcb->Station, m_lFileHandle, uiReadOffset,
uiBytesToRead, &lBytesRead, pvBuffer);
if ( lErr == 0 )
{
if( puiBytesReadRV)
{
*puiBytesReadRV = (FLMUINT) lBytesRead;
}
if (lBytesRead < (LONG)uiBytesToRead)
{
rc = RC_SET( FERR_IO_END_OF_FILE);
}
m_uiCurrentPos = uiReadOffset + lBytesRead;
}
else
{
rc = MapNWtoFlaimError(lErr, FERR_READING_FILE);
}
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Returns m_uiCurrentPos
****************************************************************************/
RCODE F_FileHdlImp::Tell(
FLMUINT * puiOffset)
{
RCODE rc;
if( RC_OK( rc = GET_FS_ERROR()))
{
*puiOffset = m_uiCurrentPos;
}
return( rc);
}
/****************************************************************************
Desc: Calls the Direct IO-style read routine
Note: Where possible, the caller should attempt to read on sector
boundaries and full sectors. This routine will do the
necessary work if this is not done, but it will be less
efficient.
****************************************************************************/
RCODE F_FileHdlImp::_DirectIORead(
FLMUINT uiReadOffset,
FLMUINT uiBytesToRead,
void * pvBuffer,
FLMUINT * puiBytesReadRV)
{
RCODE rc = FERR_OK;
FLMBYTE * pucBuffer = (FLMBYTE *)pvBuffer;
LONG lStartSector;
LONG lSectorCount;
LONG lResult;
BYTE ucSectorBuf [NLM_SECTOR_SIZE];
FLMUINT uiBytesToCopy;
FLMUINT uiSectorOffset;
FLMUINT uiTotal;
FLMINT lStatus;
flmAssert( m_bFileOpened == TRUE);
if( puiBytesReadRV)
{
*puiBytesReadRV = 0;
}
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (uiReadOffset == F_IO_CURRENT_POS)
uiReadOffset = m_uiCurrentPos;
/* Calculate the starting sector. */
lStartSector = uiReadOffset / NLM_SECTOR_SIZE;
/*
See if the offset is on a sector boundary. If not, we must read
into the local sector buffer and then copy into the buffer.
We must also read into the local buffer if our read size is less
than the sector size.
*/
if ((uiReadOffset % NLM_SECTOR_SIZE != 0) ||
(uiBytesToRead < NLM_SECTOR_SIZE))
{
if (m_bNSS)
{
if ((lStatus = gv_zDIOReadFunc( m_NssKey,
(FLMUINT64)lStartSector, 1,
(FLMUINT)0, NULL, ucSectorBuf)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
else
{
lResult = DirectReadFile(
0,
m_lFileHandle,
lStartSector,
1,
ucSectorBuf
);
if (lResult != 0)
{
rc = DfsMapError( lResult, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
/* Copy the part of the sector that was requested into the buffer. */
uiSectorOffset = uiReadOffset % NLM_SECTOR_SIZE;
if ((uiBytesToCopy = uiBytesToRead) > NLM_SECTOR_SIZE - uiSectorOffset)
uiBytesToCopy = NLM_SECTOR_SIZE - uiSectorOffset;
f_memcpy( pucBuffer, &ucSectorBuf [uiSectorOffset], uiBytesToCopy);
pucBuffer += uiBytesToCopy;
uiBytesToRead -= (FLMUINT)uiBytesToCopy;
m_uiCurrentPos += (FLMUINT)uiBytesToCopy;
if( puiBytesReadRV)
{
(*puiBytesReadRV) += (FLMUINT)uiBytesToCopy;
}
/* See if we got everything we wanted to with this read. */
if (!uiBytesToRead)
goto Exit;
/* Go to the next sector boundary */
lStartSector++;
}
/*
At this point, we are poised to read on a sector boundary. See if we
have at least one full sector to read. If so, we can read it directly
into the provided buffer. If not, we must use the temporary sector
buffer.
*/
if (uiBytesToRead >= NLM_SECTOR_SIZE)
{
lSectorCount = (LONG)(uiBytesToRead / NLM_SECTOR_SIZE);
Try_Read:
if (m_bNSS)
{
if ((lStatus = gv_zDIOReadFunc( m_NssKey,
(FLMUINT64)lStartSector,
(FLMUINT)lSectorCount,
(FLMUINT)0, NULL, pucBuffer)) != zOK)
{
if ((lStatus == zERR_END_OF_FILE || lStatus == zERR_BEYOND_EOF) &&
(lSectorCount > 1))
{
// See if we can read one less sector. We will return
// FERR_IO_END_OF_FILE in this case.
lSectorCount--;
rc = RC_SET( FERR_IO_END_OF_FILE);
goto Try_Read;
}
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
else
{
lResult = DirectReadFile(
0,
m_lFileHandle,
lStartSector,
lSectorCount,
pucBuffer
);
if (lResult != 0)
{
if ((lResult == DFSOperationBeyondEndOfFile) &&
(lSectorCount > 1))
{
// See if we can read one less sector. We will return
// FERR_IO_END_OF_FILE in this case.
lSectorCount--;
rc = RC_SET( FERR_IO_END_OF_FILE);
goto Try_Read;
}
rc = DfsMapError( lResult, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
uiTotal = (FLMUINT)(lSectorCount * NLM_SECTOR_SIZE);
pucBuffer += uiTotal;
m_uiCurrentPos += uiTotal;
if( puiBytesReadRV)
{
(*puiBytesReadRV) += uiTotal;
}
uiBytesToRead -= uiTotal;
/*
See if we got everything we wanted to or could with this read.
*/
if ((!uiBytesToRead) || (rc == FERR_IO_END_OF_FILE))
goto Exit;
/* Go to the next sector after the ones we just read. */
lStartSector += lSectorCount;
}
/*
At this point, we have less than a sector's worth to read, so we must
read it into a local buffer.
*/
if (m_bNSS)
{
if ((lStatus = gv_zDIOReadFunc( m_NssKey,
(FLMUINT64)lStartSector, 1,
(FLMUINT)0, NULL, ucSectorBuf)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
else
{
lResult = DirectReadFile(
0,
m_lFileHandle,
lStartSector,
1,
ucSectorBuf
);
if (lResult != 0)
{
rc = DfsMapError( lResult, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
/* Copy the part of the sector that was requested into the buffer. */
m_uiCurrentPos += uiBytesToRead;
if( puiBytesReadRV)
{
(*puiBytesReadRV) += uiBytesToRead;
}
f_memcpy( pucBuffer, ucSectorBuf, uiBytesToRead);
Exit:
return( rc);
}
/****************************************************************************
Desc: Might call the direct IO routine in the future
Note: This function assumes that the pvBuffer that is passed in is
a multiple of a sector size (512 bytes).
****************************************************************************/
RCODE F_FileHdlImp::SectorRead(
FLMUINT uiReadOffset,
FLMUINT uiBytesToRead,
void * pvBuffer,
FLMUINT * puiBytesReadRV)
{
RCODE rc = FERR_OK;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if ( m_bDoDirectIO )
{
rc = _DirectIOSectorRead( uiReadOffset, uiBytesToRead,
pvBuffer, puiBytesReadRV);
}
else
{
rc = _Read( uiReadOffset, uiBytesToRead, pvBuffer, puiBytesReadRV);
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Calls the direct IO Read routine
Note: This function assumes that the pvBuffer that is passed in is
a multiple of a sector size (512 bytes).
****************************************************************************/
RCODE F_FileHdlImp::_DirectIOSectorRead(
FLMUINT uiReadOffset,
FLMUINT uiBytesToRead,
void * pvBuffer,
FLMUINT * puiBytesReadRV)
{
RCODE rc = FERR_OK;
LONG lStartSector;
LONG lSectorCount;
LONG lResult;
FLMINT lStatus;
flmAssert( m_bFileOpened == TRUE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (uiReadOffset == F_IO_CURRENT_POS)
uiReadOffset = m_uiCurrentPos;
if (uiReadOffset % NLM_SECTOR_SIZE != 0)
{
rc = _Read( uiReadOffset, uiBytesToRead, pvBuffer, puiBytesReadRV);
goto Exit;
}
/* Calculate the starting sector. */
lStartSector = uiReadOffset / NLM_SECTOR_SIZE;
lSectorCount = (LONG)(uiBytesToRead / NLM_SECTOR_SIZE);
if (uiBytesToRead % NLM_SECTOR_SIZE != 0)
lSectorCount++;
Try_Read:
if (m_bNSS)
{
if ((lStatus = gv_zDIOReadFunc( m_NssKey,
(FLMUINT64)lStartSector,
(FLMUINT)lSectorCount,
(FLMUINT)0, NULL, pvBuffer)) != zOK)
{
if ((lStatus == zERR_END_OF_FILE || lStatus == zERR_BEYOND_EOF) &&
(lSectorCount > 1))
{
// See if we can read one less sector. We will return
// FERR_IO_END_OF_FILE in this case.
lSectorCount--;
uiBytesToRead = (FLMUINT)(lSectorCount * NLM_SECTOR_SIZE);
rc = RC_SET( FERR_IO_END_OF_FILE);
goto Try_Read;
}
uiBytesToRead = 0;
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
else
{
lResult = DirectReadFile( 0, m_lFileHandle,
lStartSector, lSectorCount,(BYTE *)pvBuffer);
if (lResult != 0)
{
if ((lResult == DFSOperationBeyondEndOfFile) &&
(lSectorCount > 1))
{
// See if we can read one less sector. We will return
// FERR_IO_END_OF_FILE in this case.
lSectorCount--;
uiBytesToRead = (FLMUINT)(lSectorCount * NLM_SECTOR_SIZE);
rc = RC_SET( FERR_IO_END_OF_FILE);
goto Try_Read;
}
uiBytesToRead = 0;
rc = DfsMapError( lResult, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
m_uiCurrentPos += uiBytesToRead;
Exit:
if( puiBytesReadRV)
{
*puiBytesReadRV = uiBytesToRead;
}
return( rc);
}
/****************************************************************************
Desc: Sets current position of file.
****************************************************************************/
RCODE F_FileHdlImp::Seek(
FLMUINT uiOffset,
FLMINT iWhence,
FLMUINT * puiNewOffset)
{
RCODE rc = FERR_OK;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
switch (iWhence)
{
case F_IO_SEEK_CUR:
m_uiCurrentPos += uiOffset;
break;
case F_IO_SEEK_SET:
m_uiCurrentPos = uiOffset;
break;
case F_IO_SEEK_END:
rc = Size( &m_uiCurrentPos );
if( rc)
{
goto Exit;
}
break;
default:
rc = RC_SET( FERR_NOT_IMPLEMENTED);
goto Exit;
}
*puiNewOffset = m_uiCurrentPos;
Exit:
return( rc);
}
/****************************************************************************
Desc: Return the size of the file
****************************************************************************/
RCODE F_FileHdlImp::Size(
FLMUINT * puiSize)
{
LONG lErr;
LONG lSize;
RCODE rc = FERR_OK;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (m_bNSS)
{
FLMINT lStatus;
zInfo_s Info;
if ((lStatus = gv_zGetInfoFunc( m_NssKey,
zGET_STORAGE_USED,
sizeof( Info), zINFO_VERSION_A,
&Info)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_GETTING_FILE_INFO);
goto Exit;
}
flmAssert( Info.infoVersion == zINFO_VERSION_A);
*puiSize = (FLMUINT)Info.std.logicalEOF;
}
else
{
lErr = GetFileSize( 0, m_lFileHandle, &lSize);
if ( lErr != 0 )
{
rc = MapNWtoFlaimError( lErr, FERR_GETTING_FILE_SIZE);
}
*puiSize = (FLMUINT)lSize;
}
Exit:
return( rc );
}
/****************************************************************************
Desc: Truncate the file to the indicated size
WARNING: Direct IO methods are calling this method. Make sure that all changes
to this method work in direct IO mode.
****************************************************************************/
RCODE F_FileHdlImp::Truncate(
FLMUINT uiSize)
{
LONG lErr;
RCODE rc = FERR_OK;
flmAssert( m_bFileOpened == TRUE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (m_bNSS)
{
FLMINT lStatus;
if ((lStatus = gv_zSetEOFFunc( m_NssKey, 0, (FLMUINT64)uiSize,
zSETSIZE_NON_SPARSE_FILE |
zSETSIZE_NO_ZERO_FILL |
zSETSIZE_UNDO_ON_ERR)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_TRUNCATING_FILE);
goto Exit;
}
}
else
{
if ((lErr = SetFileSize(
0,
m_lFileHandle,
uiSize,
TRUE // Return freed sectors to the OS
)) != 0)
{
rc = MapNWtoFlaimError( lErr, FERR_TRUNCATING_FILE);
goto Exit;
}
}
if (m_uiCurrentPos > uiSize)
{
m_uiCurrentPos = uiSize;
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Write to a file
****************************************************************************/
RCODE F_FileHdlImp::Write(
FLMUINT uiWriteOffset,
FLMUINT uiBytesToWrite,
const void * pvBuffer,
FLMUINT * puiBytesWrittenRV)
{
RCODE rc = FERR_OK;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if( m_bDoDirectIO)
{
rc = _DirectIOWrite( uiWriteOffset, uiBytesToWrite,
pvBuffer, puiBytesWrittenRV);
}
else
{
rc = _Write( uiWriteOffset, uiBytesToWrite,
pvBuffer, puiBytesWrittenRV);
}
Exit:
return( rc );
}
/****************************************************************************
Desc: Write to a file
****************************************************************************/
RCODE F_FileHdlImp::_Write(
FLMUINT uiWriteOffset,
FLMUINT uiBytesToWrite,
const void * pvBuffer,
FLMUINT * puiBytesWrittenRV)
{
RCODE rc = FERR_OK;
LONG lErr;
FCBType * fcb;
flmAssert( m_bFileOpened == TRUE);
*puiBytesWrittenRV = 0;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (uiWriteOffset == F_IO_CURRENT_POS)
{
uiWriteOffset = m_uiCurrentPos;
}
else
{
m_uiCurrentPos = uiWriteOffset;
}
if( m_bNSS)
{
FLMINT lStatus;
FLMUINT nBytesWritten;
if( (lStatus = gv_zWriteFunc( m_NssKey, 0, (FLMUINT64)uiWriteOffset,
(FLMUINT)uiBytesToWrite, pvBuffer, &nBytesWritten)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_WRITING_FILE);
goto Exit;
}
if( nBytesWritten != (FLMUINT)uiBytesToWrite)
{
rc = RC_SET( FERR_IO_DISK_FULL);
goto Exit;
}
}
else
{
if( (lErr = MapFileHandleToFCB( m_lFileHandle, &fcb )) != 0)
{
rc = MapNWtoFlaimError( lErr, FERR_SETTING_UP_FOR_WRITE);
goto Exit;
}
if( (lErr = WriteFile( fcb->Station, m_lFileHandle, uiWriteOffset,
uiBytesToWrite, (void *)pvBuffer)) != 0)
{
rc = MapNWtoFlaimError( lErr, FERR_WRITING_FILE);
goto Exit;
}
}
*puiBytesWrittenRV = uiBytesToWrite;
m_uiCurrentPos = uiWriteOffset + uiBytesToWrite;
Exit:
return( rc);
}
/****************************************************************************
Desc: Calls the direct IO Write routine.
****************************************************************************/
RCODE F_FileHdlImp::_DirectIOWrite(
FLMUINT uiWriteOffset,
FLMUINT uiBytesToWrite,
const void * pvBuffer,
FLMUINT * puiBytesWrittenRV)
{
RCODE rc = FERR_OK;
FLMBYTE * pucBuffer = (FLMBYTE *)pvBuffer;
LONG lStartSector;
LONG lSectorCount;
LONG lResult;
BYTE ucSectorBuf[ NLM_SECTOR_SIZE];
FLMUINT uiBytesToCopy;
FLMUINT uiSectorOffset;
FLMUINT uiTotal;
FLMINT lStatus;
flmAssert( m_bFileOpened == TRUE);
*puiBytesWrittenRV = 0;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if( uiWriteOffset == F_IO_CURRENT_POS)
{
uiWriteOffset = m_uiCurrentPos;
}
else
{
m_uiCurrentPos = uiWriteOffset;
}
// Calculate the starting sector
lStartSector = uiWriteOffset / NLM_SECTOR_SIZE;
// See if the offset is on a sector boundary. If not, we must first read
// the sector into memory, overwrite it with data from the input
// buffer and write it back out again.
if( (uiWriteOffset % NLM_SECTOR_SIZE != 0) ||
(uiBytesToWrite < NLM_SECTOR_SIZE))
{
if( m_bNSS)
{
if( (lStatus = gv_zDIOReadFunc( m_NssKey,
(FLMUINT64)lStartSector,
(FLMUINT)1, (FLMUINT)0, NULL, ucSectorBuf)) != zOK)
{
if (lStatus == zERR_END_OF_FILE || lStatus == zERR_BEYOND_EOF)
{
f_memset( ucSectorBuf, 0, sizeof( ucSectorBuf));
// Expand the file
if( RC_BAD( rc = Expand( lStartSector, 1)))
{
goto Exit;
}
}
else
{
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
}
else
{
lResult = DirectReadFile( 0, m_lFileHandle, lStartSector,
1, ucSectorBuf);
if( lResult == DFSHoleInFileError ||
lResult == DFSOperationBeyondEndOfFile )
{
f_memset( ucSectorBuf, 0, sizeof( ucSectorBuf));
// Expand the file
if( RC_BAD( rc = Expand( lStartSector, 1)))
{
goto Exit;
}
}
else if( lResult != 0)
{
rc = DfsMapError( lResult, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
// Copy the part of the buffer that is being written back into
// the sector buffer.
uiSectorOffset = uiWriteOffset % NLM_SECTOR_SIZE;
if( (uiBytesToCopy = uiBytesToWrite) > NLM_SECTOR_SIZE - uiSectorOffset)
{
uiBytesToCopy = NLM_SECTOR_SIZE - uiSectorOffset;
}
f_memcpy( &ucSectorBuf [uiSectorOffset], pucBuffer, uiBytesToCopy);
pucBuffer += uiBytesToCopy;
uiBytesToWrite -= (FLMUINT)uiBytesToCopy;
m_uiCurrentPos += (FLMUINT)uiBytesToCopy;
(*puiBytesWrittenRV) += (FLMUINT)uiBytesToCopy;
// Write the sector buffer back out
if( RC_BAD( rc = WriteSectors( &ucSectorBuf [0], lStartSector, 1, NULL)))
{
goto Exit;
}
// See if we wrote everything we wanted to with this write
if (!uiBytesToWrite)
{
goto Exit;
}
// Go to the next sector boundary
lStartSector++;
}
// At this point, we are poised to write on a sector boundary. See if we
// have at least one full sector to write. If so, we can write it directly
// from the provided buffer. If not, we must use the temporary sector
// buffer.
if( uiBytesToWrite >= NLM_SECTOR_SIZE)
{
lSectorCount = (LONG)(uiBytesToWrite / NLM_SECTOR_SIZE);
if( RC_BAD( rc = WriteSectors( (void *)pucBuffer, lStartSector,
lSectorCount, NULL)))
{
goto Exit;
}
uiTotal = (FLMUINT)(lSectorCount * NLM_SECTOR_SIZE);
pucBuffer += uiTotal;
m_uiCurrentPos += uiTotal;
(*puiBytesWrittenRV) += uiTotal;
uiBytesToWrite -= uiTotal;
// See if we wrote everything we wanted to with this write
if( !uiBytesToWrite)
{
goto Exit;
}
// Go to the next sector after the ones we just wrote
lStartSector += lSectorCount;
}
// At this point, we have less than a sector's worth to write, so we must
// first read the sector from disk, alter it, and then write it back out.
if( m_bNSS)
{
if( (lStatus = gv_zDIOReadFunc( m_NssKey, (FLMUINT64)lStartSector,
(FLMUINT)1, (FLMUINT)0, NULL, ucSectorBuf)) != zOK)
{
if( lStatus == zERR_END_OF_FILE || lStatus == zERR_BEYOND_EOF)
{
f_memset( ucSectorBuf, 0, sizeof( ucSectorBuf));
// Expand the file
if( RC_BAD( rc = Expand( lStartSector, 1)))
{
goto Exit;
}
}
else
{
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
}
else
{
lResult = DirectReadFile( 0, m_lFileHandle, lStartSector,
1, ucSectorBuf);
if( lResult == DFSHoleInFileError)
{
f_memset( ucSectorBuf, 0, sizeof( ucSectorBuf));
// Expand the file
if( RC_BAD( rc = Expand( lStartSector, 1)))
{
goto Exit;
}
}
else if( lResult != 0)
{
rc = DfsMapError( lResult, FERR_DIRECT_READING_FILE);
goto Exit;
}
}
// Copy the rest of the output buffer into the sector buffer
f_memcpy( ucSectorBuf, pucBuffer, uiBytesToWrite);
// Write the sector back to disk
if( RC_BAD( rc = WriteSectors( &ucSectorBuf [0], lStartSector, 1, NULL)))
{
goto Exit;
}
m_uiCurrentPos += uiBytesToWrite;
(*puiBytesWrittenRV) += uiBytesToWrite;
Exit:
return( rc);
}
/***************************************************************************
Desc: Expand a file for writing.
***************************************************************************/
RCODE F_FileHdlImp::Expand(
LONG lStartSector,
LONG lSectorsToAlloc)
{
RCODE rc = FERR_OK;
LONG lResult;
LONG lBlockNumber;
LONG lStartBlockNumber;
LONG lNumBlocksToAlloc;
LONG lNumBlocksAllocated;
LONG lMinToAlloc;
LONG lLastBlockNumber;
LONG lTotalToAlloc;
LONG lExtendSize;
FLMUINT uiFileSize;
FLMUINT uiRequestedExtendSize = m_uiExtendSize;
FLMBOOL bVerifyFileSize = FALSE;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
// If the requested extend size is the "special" value of ~0,
// we will set the requested size to 0, so that we will use the
// minimum default below. This allows us to somewhat emulate what
// the Window's code does.
if( uiRequestedExtendSize == (FLMUINT)(~0))
{
uiRequestedExtendSize = 0;
}
if( m_bNSS)
{
lStartBlockNumber = lStartSector / (65536 / NLM_SECTOR_SIZE);
lLastBlockNumber = (lStartSector + lSectorsToAlloc) / (65536 / NLM_SECTOR_SIZE);
lExtendSize = uiRequestedExtendSize / 65536;
}
else
{
lStartBlockNumber = lStartSector / m_lSectorsPerBlock;
lLastBlockNumber = (lStartSector + lSectorsToAlloc) / m_lSectorsPerBlock;
lExtendSize = uiRequestedExtendSize / (m_lSectorsPerBlock * NLM_SECTOR_SIZE);
}
// Last block number better be greater than or equal to
// start block number.
flmAssert( lLastBlockNumber >= lStartBlockNumber);
lMinToAlloc = (lLastBlockNumber - lStartBlockNumber) + 1;
if( lExtendSize < 5)
{
lExtendSize = 5;
}
// Allocate up to lExtendSize blocks at a time - hopefully this will be
// more efficient.
if( lMinToAlloc < lExtendSize)
{
lTotalToAlloc = lExtendSize;
}
else if( lMinToAlloc % lExtendSize == 0)
{
lTotalToAlloc = lMinToAlloc;
}
else
{
// Keep the total blocks to allocate a multiple of lExtendSize.
lTotalToAlloc = lMinToAlloc -
(lMinToAlloc % lExtendSize) + lExtendSize;
}
lNumBlocksToAlloc = lTotalToAlloc;
lBlockNumber = lStartBlockNumber;
lNumBlocksAllocated = 0;
// Must not go over maximum file size.
if( lStartBlockNumber + lTotalToAlloc > m_lMaxBlocks)
{
lNumBlocksToAlloc = lTotalToAlloc = m_lMaxBlocks - lStartBlockNumber;
if( lTotalToAlloc < lMinToAlloc)
{
rc = RC_SET( FERR_IO_DISK_FULL);
goto Exit;
}
}
if( m_bNSS)
{
FLMINT lStatus;
for( ;;)
{
if( (lStatus = gv_zSetEOFFunc( m_NssKey, 0,
(FLMUINT64)lBlockNumber * 65536 + lNumBlocksToAlloc * 65536,
zSETSIZE_NO_ZERO_FILL | zSETSIZE_NON_SPARSE_FILE)) != zOK)
{
if( lStatus == zERR_OUT_OF_SPACE)
{
if( lNumBlocksToAlloc > lMinToAlloc)
{
lNumBlocksToAlloc--;
continue;
}
}
rc = MapNSSToFlaimError( lStatus, FERR_EXPANDING_FILE);
goto Exit;
}
else
{
break;
}
}
}
else
{
for (;;)
{
lResult = ExpandFileInContiguousBlocks( 0, m_lFileHandle,
lBlockNumber, lNumBlocksToAlloc, -1, -1);
// If we couldn't allocate space, see if we can free some of
// the limbo space on the volume.
if( lResult == DFSInsufficientSpace || lResult == DFSBoundryError)
{
// May not have been able to get contiguous space for
// multiple blocks. If we were asking for more than
// one, reduce the number we are asking for and try
// again.
if( lNumBlocksToAlloc > 1)
{
lNumBlocksToAlloc--;
continue;
}
// If we could not even get one block, it is time to
// try and free some limbo space.
lResult = FreeLimboVolumeSpace( (LONG)m_lVolumeID, 1);
if( lResult == DFSInsufficientLimboFileSpace)
{
// It is not an error to be out of space if
// we successfully allocated at least the minimum
// number of blocks needed.
if( lNumBlocksAllocated >= lMinToAlloc)
{
break;
}
else
{
rc = RC_SET( FERR_IO_DISK_FULL);
goto Exit;
}
}
continue;
}
else if( lResult == DFSOverlapError)
{
lResult = 0;
bVerifyFileSize = TRUE;
// If lNumBlocksToAlloc is greater than one, we
// don't know exactly where the hole is, so we need
// to try filling exactly one block right where
// we are at.
// If lNumBlocksToAlloc is exactly one, we know that
// we have a block right where we are at, so we let
// the code fall through as if the expand had
// succeeded.
if( lNumBlocksToAlloc > 1)
{
// If we have an overlap, try getting one block at
// the current block number - need to make sure this
// is not where the hole is at.
lNumBlocksToAlloc = 1;
continue;
}
}
else if (lResult != 0)
{
rc = DfsMapError( lResult, FERR_EXPANDING_FILE);
goto Exit;
}
lNumBlocksAllocated += lNumBlocksToAlloc;
lBlockNumber += lNumBlocksToAlloc;
if( lNumBlocksAllocated >= lTotalToAlloc)
{
break;
}
else if( lNumBlocksToAlloc > lTotalToAlloc - lNumBlocksAllocated)
{
lNumBlocksToAlloc = lTotalToAlloc - lNumBlocksAllocated;
}
}
// If bVerifyFileSize is TRUE, we had an overlap error, which means
// that we may have had a hole in the file. In that case, we
// do NOT want to truncate the file to an incorrect size, so we
// get the current file size to make sure we are not reducing it
// down inappropriately. NOTE: This is not foolproof - if we have
// a hole that is exactly the size we asked for, we will not verify
// the file size.
uiFileSize = (FLMUINT)(lStartBlockNumber + lNumBlocksAllocated) *
(FLMUINT)m_lSectorsPerBlock * (FLMUINT)NLM_SECTOR_SIZE;
if( bVerifyFileSize)
{
LONG lCurrFileSize;
lResult = GetFileSize( 0, m_lFileHandle, &lCurrFileSize);
if( lResult != DFSNormalCompletion)
{
rc = DfsMapError( lResult, FERR_GETTING_FILE_SIZE);
goto Exit;
}
if( (FLMUINT)lCurrFileSize > uiFileSize)
{
uiFileSize = (FLMUINT)lCurrFileSize;
}
}
// This call of SetFileSize is done to force the directory entry file size
// to account for the newly allocated blocks. It also forces the directory
// entry to be updated on disk. If we didn't do this here, the directory
// entry's file size on disk would not account for this block.
// Thus, if we crashed after writing data to this
// newly allocated block, we would lose the data in the block.
lResult = SetFileSize( 0, m_lFileHandle, uiFileSize, FALSE);
if( lResult != DFSNormalCompletion)
{
rc = DfsMapError( lResult, FERR_TRUNCATING_FILE);
goto Exit;
}
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Calls the direct IO Write routine. Handles both asynchronous writes
and synchronous writes.
****************************************************************************/
RCODE F_FileHdlImp::WriteSectors(
void * pvBuffer,
LONG lStartSector,
LONG lSectorCount,
F_IOBuffer * pBufferObj,
FLMBOOL * pbDidAsync)
{
RCODE rc = FERR_OK;
LONG lResult;
FLMBOOL bAlreadyExpanded = FALSE;
FLMINT lStatus;
FLMBOOL bMadePending;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
// Keep trying write until we succeed or get an error we can't deal with.
// Actually, this will NOT loop forever. At most, it will try twice -
// and then it is only when we get a hole in the file error.
bMadePending = FALSE;
for (;;)
{
if (m_bNSS)
{
if( pBufferObj)
{
if (!bMadePending)
{
flmAssert( pbDidAsync);
pBufferObj->makePending();
bMadePending = TRUE;
}
lStatus = gv_zDIOWriteFunc( m_NssKey,
(FLMUINT64)lStartSector,
(FLMUINT)lSectorCount,
(FLMUINT)pBufferObj,
nssDioCallback,
pvBuffer);
}
else
{
lStatus = gv_zDIOWriteFunc( m_NssKey,
(FLMUINT64)lStartSector,
(FLMUINT)lSectorCount, (FLMUINT)0, NULL, pvBuffer);
}
// We may need to allocate space to do this write
if (lStatus == zERR_END_OF_FILE ||
lStatus == zERR_BEYOND_EOF ||
lStatus == zERR_HOLE_IN_DIO_FILE)
{
if (bAlreadyExpanded)
{
flmAssert( 0);
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_WRITING_FILE);
goto Exit;
}
// Expand the file
if (RC_BAD( rc = Expand( lStartSector, lSectorCount)))
{
goto Exit;
}
bAlreadyExpanded = TRUE;
continue;
}
else if (lStatus != 0)
{
rc = MapNSSToFlaimError( lStatus, FERR_DIRECT_WRITING_FILE);
goto Exit;
}
else
{
if (pBufferObj)
{
*pbDidAsync = TRUE;
}
break;
}
}
else
{
LONG lSize;
FLMBOOL bNeedToWriteEOF;
// Determine if this write will change the EOF. If so, pre-expand
// the file.
lResult = GetFileSize( 0, m_lFileHandle, &lSize);
if (lResult != 0)
{
rc = MapNWtoFlaimError( lResult, FERR_GETTING_FILE_SIZE);
goto Exit;
}
bNeedToWriteEOF = (lSize < (lStartSector + lSectorCount) * NLM_SECTOR_SIZE)
? TRUE
: FALSE;
if( pBufferObj)
{
if (!bMadePending)
{
flmAssert( pbDidAsync);
pBufferObj->makePending();
bMadePending = TRUE;
}
lResult = DirectWriteFileNoWait( 0, m_lFileHandle,
lStartSector,lSectorCount,
(BYTE *)pvBuffer, DirectIONoWaitCallBack,
(LONG)pBufferObj);
}
else
{
lResult = DirectWriteFile( 0, m_lFileHandle,
lStartSector, lSectorCount, (BYTE *)pvBuffer);
}
// We may need to allocate space to do this write
if( lResult == DFSHoleInFileError ||
lResult == DFSOperationBeyondEndOfFile)
{
if( bAlreadyExpanded)
{
flmAssert( 0);
rc = DfsMapError( lResult, FERR_DIRECT_WRITING_FILE);
goto Exit;
}
// Expand the file
if( RC_BAD( rc = Expand( lStartSector, lSectorCount)))
{
goto Exit;
}
bAlreadyExpanded = TRUE;
// The Expand method forces the file EOF in the directory
// entry to be written to disk.
bNeedToWriteEOF = FALSE;
continue;
}
else if (lResult != 0)
{
rc = DfsMapError( lResult, FERR_DIRECT_WRITING_FILE);
goto Exit;
}
else
{
if( pBufferObj)
{
*pbDidAsync = TRUE;
}
// If bNeedToWriteEOF is TRUE, we need to force EOF to disk.
if( bNeedToWriteEOF)
{
LONG lFileSizeInSectors;
LONG lExtraSectors;
// Set the EOF to the nearest block boundary - so we don't
// have to do this very often.
lFileSizeInSectors = lStartSector + lSectorCount;
lExtraSectors = lFileSizeInSectors % m_lSectorsPerBlock;
if (lExtraSectors)
{
lFileSizeInSectors += (m_lSectorsPerBlock - lExtraSectors);
}
if ((lResult = SetFileSize( 0, m_lFileHandle,
(FLMUINT)lFileSizeInSectors * NLM_SECTOR_SIZE,
FALSE)) != 0)
{
rc = DfsMapError( lResult, FERR_TRUNCATING_FILE);
goto Exit;
}
}
break;
}
}
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Legacy async I/O completion callback
****************************************************************************/
FSTATIC void DirectIONoWaitCallBack(
LONG unknownAlwaysZero,
LONG callbackData,
LONG completionCode)
{
F_IOBuffer * pIOBuffer = (F_IOBuffer *)callbackData;
F_UNREFERENCED_PARM( unknownAlwaysZero);
pIOBuffer->signalComplete(
(RCODE)(completionCode == DFSNormalCompletion
? FERR_OK
: DfsMapError( completionCode, FERR_DIRECT_WRITING_FILE)));
}
/****************************************************************************
Desc: NSS async I/O completion callback
****************************************************************************/
FSTATIC void nssDioCallback(
FLMUINT reserved,
FLMUINT callbackData,
FLMUINT completionCode)
{
F_IOBuffer * pIOBuffer = (F_IOBuffer *)callbackData;
F_UNREFERENCED_PARM( reserved);
pIOBuffer->signalComplete(
(RCODE)(completionCode == zOK
? FERR_OK
: MapNSSToFlaimError( completionCode, FERR_DIRECT_WRITING_FILE)));
}
/****************************************************************************
Desc: Might call the direct IO Write routine in the future
Note: This routine assumes that the size of pvBuffer is a multiple of
sector size (512 bytes) and can be used to write out full
sectors. Even if uiBytesToWrite does not account for full sectors,
data from the buffer will still be written out - a partial sector
on disk will not be preserved.
****************************************************************************/
RCODE F_FileHdlImp::SectorWrite(
FLMUINT uiWriteOffset,
FLMUINT uiBytesToWrite,
const void * pvBuffer,
FLMUINT uiBufferSize,
F_IOBuffer * pBufferObj,
FLMUINT * puiBytesWrittenRV,
FLMBOOL bZeroFill)
{
RCODE rc = FERR_OK;
F_UNREFERENCED_PARM( uiBufferSize);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if ( m_bDoDirectIO)
{
rc = _DirectIOSectorWrite( uiWriteOffset, uiBytesToWrite, pvBuffer,
pBufferObj, puiBytesWrittenRV, bZeroFill);
}
else
{
flmAssert( pBufferObj == NULL);
rc = _Write( uiWriteOffset, uiBytesToWrite, pvBuffer, puiBytesWrittenRV);
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Calls the direct IO-style write routine.
Note: This routine assumes that the size of pvBuffer is a multiple of
sector size (512 bytes) and can be used to write out full
sectors. Even if uiBytesToWrite does not account for full sectors,
data from the buffer will still be written out - a partial sector
on disk will not be preserved.
****************************************************************************/
RCODE F_FileHdlImp::_DirectIOSectorWrite(
FLMUINT uiWriteOffset,
FLMUINT uiBytesToWrite,
const void * pvBuffer,
F_IOBuffer * pBufferObj,
FLMUINT * puiBytesWrittenRV,
FLMBOOL bZeroFill)
{
RCODE rc = FERR_OK;
LONG lStartSector;
LONG lSectorCount;
FLMBOOL bDidAsync = FALSE;
flmAssert( m_bFileOpened == TRUE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if (uiWriteOffset == F_IO_CURRENT_POS)
{
uiWriteOffset = m_uiCurrentPos;
}
else
{
m_uiCurrentPos = uiWriteOffset;
}
if (uiWriteOffset % NLM_SECTOR_SIZE != 0)
{
rc = Write( uiWriteOffset, uiBytesToWrite, pvBuffer,
puiBytesWrittenRV);
goto Exit;
}
// Calculate the starting sector and number of sectors to write
lStartSector = uiWriteOffset / NLM_SECTOR_SIZE;
lSectorCount = (LONG)(uiBytesToWrite / NLM_SECTOR_SIZE);
if (uiBytesToWrite % NLM_SECTOR_SIZE != 0)
{
FLMBYTE * pucBuffer = (FLMBYTE *)pvBuffer;
lSectorCount++;
if (bZeroFill)
{
// Zero out the part of the buffer that was not included in
// uiBytesToWrite - because it will still be written to disk.
f_memset( &pucBuffer [uiBytesToWrite], 0,
(FLMUINT)(NLM_SECTOR_SIZE - (uiBytesToWrite % NLM_SECTOR_SIZE)));
}
}
if( RC_BAD( rc = WriteSectors( (void *)pvBuffer, lStartSector, lSectorCount,
pBufferObj, &bDidAsync)))
{
goto Exit;
}
m_uiCurrentPos += uiBytesToWrite;
if( puiBytesWrittenRV)
{
*puiBytesWrittenRV = uiBytesToWrite;
}
Exit:
if( !bDidAsync && pBufferObj)
{
pBufferObj->notifyComplete( rc);
}
return( rc);
}
/****************************************************************************
Desc: Determine if a file or directory exists
****************************************************************************/
RCODE NWTestIfFileExists(
const char * pPath)
{
RCODE rc = FERR_OK;
LONG unused;
FLMBYTE ucPseudoLNamePath[ F_PATH_MAX_SIZE + 1];
FLMBYTE ucLNamePath[ F_PATH_MAX_SIZE];
LONG lVolumeID;
LONG lPathID;
LONG lLNamePathCount;
LONG lDirectoryID;
LONG lErrorCode;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
f_strcpy( (char *)&ucPseudoLNamePath[1], pPath);
ucPseudoLNamePath[0] = (char)f_strlen( pPath);
if( (lErrorCode = ConvertPathString( 0, 0, ucPseudoLNamePath, &lVolumeID,
&lPathID, ucLNamePath, &lLNamePathCount)) != 0)
{
goto Exit;
}
if( (lErrorCode = MapPathToDirectoryNumber( 0, lVolumeID, 0, ucLNamePath,
lLNamePathCount, LONGNameSpace, &lDirectoryID, &unused)) != 0)
{
goto Exit;
}
Exit:
if( lErrorCode == 255 || lErrorCode == 156)
{
// Too many error codes map to 255, so we put in a special
// case check here
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
}
else if( lErrorCode )
{
rc = MapNWtoFlaimError( lErrorCode, FERR_CHECKING_FILE_EXISTENCE);
}
return( rc);
}
/****************************************************************************
Desc: Delete a file
****************************************************************************/
RCODE NWDeleteFile(
const char * pPath)
{
RCODE rc = FERR_OK;
LONG lErrorCode;
char pszQualifiedPath[ F_PATH_MAX_SIZE];
FLMBYTE ucLNamePath[ F_PATH_MAX_SIZE + 1];
LONG lLNamePathCount;
LONG lVolumeID;
FLMBOOL bNssVolume = FALSE;
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
ConvertToQualifiedNWPath( pPath, pszQualifiedPath);
if( (lErrorCode = ConvertPathToLNameFormat( pszQualifiedPath, &lVolumeID,
&bNssVolume, ucLNamePath, &lLNamePathCount)) != 0)
{
rc = MapNWtoFlaimError( lErrorCode, FERR_RENAMING_FILE);
goto Exit;
}
if( gv_bNSSKeyInitialized && bNssVolume)
{
if( (lErrorCode = gv_zDeleteFunc( gv_NssRootKey, 0,
zNSPACE_LONG | zMODE_UTF8,
pszQualifiedPath, zMATCH_ALL, 0)) != zOK)
{
rc = MapNSSToFlaimError( lErrorCode, FERR_DELETING_FILE);
goto Exit;
}
}
else
{
if( (lErrorCode = EraseFile( 0, 1, lVolumeID, 0, ucLNamePath,
lLNamePathCount, LONGNameSpace, 0)) != 0)
{
// Too many error codes map to 255, so we put in a special
// case check here.
if( lErrorCode == 255)
{
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
}
else
{
rc = MapNWtoFlaimError( lErrorCode, FERR_DELETING_FILE);
}
goto Exit;
}
}
Exit:
return( rc);
}
/****************************************************************************
Desc: Turn off the rename inhibit bit for a file in an NSS volume.
****************************************************************************/
FSTATIC RCODE nssTurnOffRenameInhibit(
const char * pszFileName)
{
RCODE rc = FERR_OK;
zInfo_s Info;
FLMINT64 NssKey;
FLMBOOL bFileOpened = FALSE;
FLMINT lStatus;
FLMUINT nOpenAttr;
nOpenAttr = FlaimToNSSOpenFlags( (FLMUINT)(F_IO_RDWR |
F_IO_SH_DENYNONE), FALSE);
if( (lStatus = gv_zOpenFunc( gv_NssRootKey, 1, zNSPACE_LONG | zMODE_UTF8,
pszFileName, nOpenAttr, &NssKey)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_OPENING_FILE);
goto Exit;
}
bFileOpened = TRUE;
// Get the file attributes.
if( (lStatus = gv_zGetInfoFunc( NssKey, zGET_STD_INFO, sizeof( Info),
zINFO_VERSION_A, &Info)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_GETTING_FILE_INFO);
goto Exit;
}
flmAssert( Info.infoVersion == zINFO_VERSION_A);
// See if the rename inhibit bit is set.
if( Info.std.fileAttributes & zFA_RENAME_INHIBIT)
{
// Turn bit off
Info.std.fileAttributes = 0;
// Specify which bits to modify - only rename inhibit in this case
Info.std.fileAttributesModMask = zFA_RENAME_INHIBIT;
if( (lStatus = gv_zModifyInfoFunc( NssKey, 0, zMOD_FILE_ATTRIBUTES,
sizeof( Info), zINFO_VERSION_A, &Info)) != zOK)
{
rc = MapNSSToFlaimError( lStatus, FERR_SETTING_FILE_INFO);
goto Exit;
}
}
Exit:
if( bFileOpened)
{
(void)gv_zCloseFunc( NssKey);
}
return( rc);
}
/****************************************************************************
Desc: Rename a file
Notes: Currently, this function doesn't support moving the file from one
volume to another. (There is a CopyFileToFile function that could
be used to do the move.) The toolkit function does appear to
support moving (copy/delete) the file.
This function does support renaming directories.
****************************************************************************/
RCODE NWRenameFile(
const char * pOldFilePath,
const char * pNewFilePath)
{
RCODE rc = FERR_OK;
LONG unused;
FLMBYTE ucOldLNamePath[ F_PATH_MAX_SIZE + 1];
LONG lOldLNamePathCount;
FLMBYTE ucNewLNamePath[ F_PATH_MAX_SIZE + 1];
LONG lNewLNamePathCount;
LONG lVolumeID;
LONG lErrorCode;
FLMBYTE ucPseudoLNamePath[ F_PATH_MAX_SIZE + 1];
LONG lPathID;
LONG lIsFile;
FLMBOOL bIsDirectory;
struct ModifyStructure modifyStruct;
LONG lDirectoryID;
LONG lFileAttributes;
LONG lMatchBits;
FLMBOOL bNssVolume =
(FLMBOOL)(gv_zIsNSSVolumeFunc
? (gv_zIsNSSVolumeFunc( (const char *)pOldFilePath)
? TRUE
: FALSE)
: FALSE);
if( RC_BAD( rc = GET_FS_ERROR()))
{
goto Exit;
}
if( gv_bNSSKeyInitialized && bNssVolume)
{
FLMINT lStatus;
FLMBOOL bTurnedOffRenameInhibit = FALSE;
Retry_Nss_Rename:
if( (lStatus = gv_zRenameFunc( gv_NssRootKey, 0,
zNSPACE_LONG | zMODE_UTF8, pOldFilePath, zMATCH_ALL,
zNSPACE_LONG | zMODE_UTF8, pNewFilePath, 0)) != zOK)
{
if( lStatus == zERR_NO_RENAME_PRIVILEGE && !bTurnedOffRenameInhibit)
{
// Attempt to turn off rename inhibit. This isn't always the
// reason for zERR_NO_RENAME_PRIVILEGE, but it is one we
// definitely need to take care of.
if( RC_BAD( rc = nssTurnOffRenameInhibit( pOldFilePath)))
{
goto Exit;
}
bTurnedOffRenameInhibit = TRUE;
goto Retry_Nss_Rename;
}
rc = MapNSSToFlaimError( lStatus, FERR_RENAMING_FILE);
goto Exit;
}
}
else
{
f_strcpy( (char *)&ucPseudoLNamePath[1], pOldFilePath);
ucPseudoLNamePath[0] = (char)f_strlen( (const char *)&ucPseudoLNamePath[1] );
if( (lErrorCode = ConvertPathString( 0, 0, ucPseudoLNamePath, &lVolumeID,
&lPathID, (BYTE *)ucOldLNamePath, &lOldLNamePathCount)) != 0)
{
goto Exit;
}
if( (lErrorCode = MapPathToDirectoryNumber( 0, lVolumeID, 0,
(BYTE *)ucOldLNamePath, lOldLNamePathCount, LONGNameSpace,
&lDirectoryID, &lIsFile)) != 0)
{
goto Exit;
}
if( lIsFile)
{
bIsDirectory = FALSE;
lMatchBits = 0;
}
else
{
bIsDirectory = TRUE;
lMatchBits = SUBDIRECTORY_BIT;
}
f_strcpy( (char *)&ucPseudoLNamePath[1], pNewFilePath);
ucPseudoLNamePath[0] = (char)f_strlen( (const char *)&ucPseudoLNamePath[1]);
if( (lErrorCode = ConvertPathString( 0, 0, ucPseudoLNamePath, &unused,
&lPathID, (BYTE *)ucNewLNamePath, &lNewLNamePathCount)) != 0)
{
goto Exit;
}
{
struct DirectoryStructure * pFileInfo;
if( (lErrorCode = VMGetDirectoryEntry( lVolumeID,
lDirectoryID & 0x00ffffff, &pFileInfo)) != 0)
{
goto Exit;
}
lFileAttributes = pFileInfo->DFileAttributes;
}
if( lFileAttributes & RENAME_INHIBIT_BIT )
{
f_memset(&modifyStruct, 0, sizeof(modifyStruct));
modifyStruct.MFileAttributesMask = RENAME_INHIBIT_BIT;
if( (lErrorCode = ModifyDirectoryEntry( 0, 1, lVolumeID, 0,
(BYTE *)ucOldLNamePath, lOldLNamePathCount, LONGNameSpace,
lMatchBits, LONGNameSpace, &modifyStruct,
MFileAttributesBit, 0)) != 0)
{
goto Exit;
}
}
lErrorCode = RenameEntry( 0, 1, lVolumeID, 0, ucOldLNamePath,
lOldLNamePathCount, LONGNameSpace, lMatchBits,
(BYTE)bIsDirectory ? 1 : 0, 0, ucNewLNamePath, lNewLNamePathCount,
TRUE, TRUE);
if( lFileAttributes & RENAME_INHIBIT_BIT )
{
FLMBYTE * pFileName;
if( lErrorCode )
{
pFileName = ucOldLNamePath;
lNewLNamePathCount = lOldLNamePathCount;
}
else
{
pFileName = ucNewLNamePath;
}
// Turn the RENAME_INHIBIT_BIT back on
f_memset(&modifyStruct, 0, sizeof(modifyStruct));
modifyStruct.MFileAttributes = RENAME_INHIBIT_BIT;
modifyStruct.MFileAttributesMask = RENAME_INHIBIT_BIT;
(void)ModifyDirectoryEntry( 0, 1, lVolumeID, 0, (BYTE *)pFileName,
lNewLNamePathCount, LONGNameSpace, lMatchBits, LONGNameSpace,
&modifyStruct, MFileAttributesBit, 0);
}
}
Exit:
if( !gv_bNSSKeyInitialized || !bNssVolume)
{
if( lErrorCode )
{
// Too many error codes map to 255, so we put in a special
// case check here.
if( lErrorCode == 255)
{
rc = RC_SET( FERR_IO_PATH_NOT_FOUND);
}
else
{
rc = MapNWtoFlaimError( lErrorCode, FERR_RENAMING_FILE);
}
}
}
return( rc);
}
/****************************************************************************
Desc: Convert the given path to NetWare LName format.
Input: pPath = qualified netware path of the format:
volume:directory_1\...\directory_n\filename.ext
Output: plVolumeID = NetWare volume ID
pLNamePath = NetWare LName format path
Netware expects paths to be in LName format:
<L1><C1><L2><C2>...<Ln><Cn>
where <Lx> is a one-byte length and <Cx> is a path component.
Example: 6SYSTEM4Fred
note that the 6 and 4 are binary, not ASCII
plLNamePathCount = number of path components in pLNamePath
****************************************************************************/
FSTATIC LONG ConvertPathToLNameFormat(
const char * pPath,
LONG * plVolumeID,
FLMBOOL * pbNssVolume,
FLMBYTE * pLNamePath,
LONG * plLNamePathCount)
{
FLMBYTE ucPseudoLNamePath[ F_PATH_MAX_SIZE + 1];
LONG lPathID;
LONG lErrorCode = 0;
*pLNamePath = 0;
*plLNamePathCount = 0;
#ifdef FLM_DEBUG
if( RC_BAD( GET_FS_ERROR()))
{
lErrorCode = 255;
goto Exit;
}
#endif
*pbNssVolume = (FLMBOOL)(gv_zIsNSSVolumeFunc
? (gv_zIsNSSVolumeFunc( (const char *)pPath)
? TRUE
: FALSE)
: FALSE);
if( gv_bNSSKeyInitialized && *pbNssVolume)
{
f_strcpy( (char *)pLNamePath, pPath);
*plLNamePathCount = 1;
}
else
{
f_strcpy( (char *)&ucPseudoLNamePath[1], pPath);
ucPseudoLNamePath[0] = (FLMBYTE)f_strlen( (const char *)&ucPseudoLNamePath[1]);
if( (lErrorCode = ConvertPathString( 0, 0, ucPseudoLNamePath, plVolumeID,
&lPathID, (BYTE *)pLNamePath, plLNamePathCount)) != 0)
{
goto Exit;
}
}
Exit:
return( lErrorCode );
}
/****************************************************************************
Desc: Convert the given path to a NetWare format. The format isn't
critical, it just needs to be consistent. See below for a
description of the format chosen.
Input: pInputPath = a path to a file
Output: pszQualifiedPath = qualified netware path of the format:
volume:directory_1\...\directory_n\filename.ext
If no volume is given, "SYS:" is the default.
****************************************************************************/
FSTATIC void ConvertToQualifiedNWPath(
const char * pInputPath,
char * pszQualifiedPath)
{
char ucFileName [F_FILENAME_SIZE];
char ucVolume [MAX_NETWARE_VOLUME_NAME+1];
char ucPath [F_PATH_MAX_SIZE + 1];
// Separate path into its components: volume, path...
f_pathParse( pInputPath, NULL, ucVolume, ucPath, ucFileName);
// Rebuild path to a standard, fully-qualified format, defaulting the
// volume if one isn't specified.
*pszQualifiedPath = 0;
if( ucVolume [0])
{
// Append the volume specified by the user.
f_strcat( pszQualifiedPath, ucVolume );
}
else
{
// No volume specified, use the default
f_strcat( pszQualifiedPath, "SYS:");
}
if( ucPath [0])
{
// User specified a path...
if( ucPath[0] == '\\' || ucPath[0] == '/' )
{
// Append the path to the volume without the leading slash
f_strcat( pszQualifiedPath, &ucPath [1]);
}
else
{
// Append the path to the volume
f_strcat( pszQualifiedPath, ucPath);
}
}
if( ucFileName [0])
{
// Append the file name to the path
f_pathAppend( pszQualifiedPath, ucFileName);
}
}
#endif
/****************************************************************************
Desc:
****************************************************************************/
#if defined( FLM_OSX)
void gv_fnlm()
{
}
#endif
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