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windows-nt/Source/XPSP1/NT/inetsrv/iis/inc/oplock/tsunami.hxx

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/*++
Copyright (c) 1995 Microsoft Corporation
Module Name :
tsunami.hxx
Abstract:
Declares the constants, data strutcures and function prototypes
available for common use for Services from Tsunami.lib
Author:
Murali R. Krishnan ( MuraliK ) 2-March-1995
[ Originally partly done by t-heathh]
Project:
Internet Services Common Functionality ( Tsunami Library)
Revision History:
--*/
# ifndef _TSUNAMI_HXX_
# define _TSUNAMI_HXX_
/************************************************************
* Include Headers
************************************************************/
# if defined ( __cplusplus)
extern "C" {
# endif
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <basetyps.h>
#include <lmcons.h>
# include <inetinfo.h>
# include "fsconst.h" // Defines symbolic constants for FileSystems
# if defined ( __cplusplus)
};
# endif
#include <tscache.hxx>
/************************************************************
* Symbolic Constants
************************************************************/
#define MAX_LENGTH_VIRTUAL_ROOT ( MAX_PATH + 1)
#define MAX_LENGTH_ROOT_ADDR ( 50)
#define INETA_MAX_OPEN_FILE TEXT("OpenFileInCache")
#define INETA_DISABLE_TSUNAMI_CACHING TEXT("DisableMemoryCache")
#define INETA_DISABLE_TSUNAMI_SPUD TEXT("DisableCacheOplocks")
#define INETA_ALWAYS_CHECK_FOR_DUPLICATE_LOGON TEXT("AlwaysCheckForDuplicateLogon")
#define INETA_USE_ADVAPI32_LOGON TEXT("UseAdvapi32Logon")
#define INETA_CHECK_CERT_REVOCATION TEXT("CheckCertRevocation")
//
// Modifications to this name should also be made in exe\main.c
//
#define INETA_W3ONLY_NO_AUTH TEXT("W3OnlyNoAuth")
#define INETA_MIN_DEF_FILE_HANDLE 300
#define MAX_SIZE_HTTP_INFO 170
#define INETA_CACHE_USE_ACCESS_CHECK TEXT("CacheSecurityDescriptor")
#define INETA_DEF_CACHE_USE_ACCESS_CHECK TRUE
#define SIZE_PRIVILEGE_SET 128
#define SECURITY_DESC_DEFAULT_SIZE 256
#define SECURITY_DESC_GRANULARITY 128
#define RESERVED_DEMUX_START 0x80000000
#define RESERVED_DEMUX_DIRECTORY_LISTING ( RESERVED_DEMUX_START + 1 )
#define RESERVED_DEMUX_ATOMIC_DIRECTORY_GUARD ( RESERVED_DEMUX_START + 2 )
#define RESERVED_DEMUX_OPEN_FILE ( RESERVED_DEMUX_START + 3 )
#define RESERVED_DEMUX_URI_INFO ( RESERVED_DEMUX_START + 4 )
#define RESERVED_DEMUX_PHYSICAL_OPEN_FILE ( RESERVED_DEMUX_START + 5 )
// The maxium length of an ETag is 16 bytes for the last modified time plus
// one byte for the colon plus 2 bytes for the quotes plus 8 bytes for the
// system change notification number plus one for the trailing NULL, for a
// total of 28 bytes.
#define MAX_ETAG_BUFFER_LENGTH 28
/************************************************************
* Type Definitions
************************************************************/
/************************************************************
* Global Tsunami variables
************************************************************/
extern GENERIC_MAPPING g_gmFile;
extern BYTE g_psFile[SIZE_PRIVILEGE_SET];
extern BOOL g_fCacheSecDesc;
extern BOOL g_fW3OnlyNoAuth;
extern BOOL g_fAlwaysCheckForDuplicateLogon;
extern BOOL g_fUseAdvapi32Logon;
extern BOOL g_fCertCheckForRevocation;
/************************************************************
* Function Prototypes
************************************************************/
//
// General Functions
//
extern
BOOL Tsunami_Initialize( VOID );
extern
VOID Tsunami_Terminate( VOID );
extern
VOID TsDumpCacheToHtml(IN OUT CHAR * pchBuffer, IN OUT LPDWORD lpcbSize);
# if defined( __cplusplus)
extern "C" {
# endif
//
// Blob Memory management functions : Allocate, Reallocate and Free.
//
typedef BOOL ( *PUSER_FREE_ROUTINE )( PVOID pvOldBlock );
extern
BOOL TsAllocate
(
IN const TSVC_CACHE &TSvcCache,
IN ULONG cbSize,
IN OUT PVOID * ppvNewBlock
);
extern
BOOL TsAllocateEx
(
IN const TSVC_CACHE &TSvcCache,
IN ULONG cbSize,
IN OUT PVOID * ppvNewBlock,
OPTIONAL PUSER_FREE_ROUTINE pfnFreeRoutine
);
extern
BOOL TsReallocate
(
IN const TSVC_CACHE &TSvcCache,
IN ULONG cbSize,
IN PVOID pvOldBlock,
IN OUT PVOID * ppvNewBlock
);
extern
BOOL TsFree
(
IN const TSVC_CACHE &TSvcCache,
IN PVOID pvOldBlock
);
extern
BOOL TsCheckInOrFree
(
IN PVOID pvOldBlock
);
//
// Cache Manager Functions: cache, decache, checkout and checkins of blobs
//
extern
BOOL
TsCacheDirectoryBlob(
IN const TSVC_CACHE &TSvcCache,
IN PCSTR pszDirectoryName,
IN ULONG iDemultiplexor,
IN PVOID pvBlob,
IN BOOLEAN bKeepCheckedOut,
IN PSECURITY_DESCRIPTOR pSecDesc = NULL
);
extern
BOOL
TsCheckOutCachedBlob(
IN const TSVC_CACHE &TSvcCache,
IN PCSTR pszDirectoryName,
IN ULONG iDemultiplexor,
IN PVOID * ppvBlob,
IN HANDLE hAccessToken = NULL,
IN BOOL fMayCacheAccessToken = FALSE,
OUT PSECURITY_DESCRIPTOR* ppSecDesc = NULL
);
extern
BOOL
TsCheckInCachedBlob(
IN PVOID pvBlob
);
extern
BOOL
TsExpireCachedBlob(
IN const TSVC_CACHE &TSvcCache,
IN PVOID pvBlob
);
extern
BOOL
TsAdjustCachedBlobSize(
IN PVOID pvBlob,
IN INT cbSize
);
extern
BOOL
TsCacheQueryStatistics(
IN DWORD Level,
IN DWORD dwServerMask,
IN INETA_CACHE_STATISTICS * pCacheCtrs
);
extern
BOOL
TsCacheClearStatistics(
IN DWORD dwServerMask
);
extern
BOOL
TsCacheFlushDemux(
IN ULONG iDemux
);
extern
BOOL
TsCacheFlush(
IN DWORD dwServerMask
);
extern
BOOL
TsCacheFlushUser(
IN HANDLE hUserToken,
IN BOOL fDefer
);
extern
VOID
TsFlushTimedOutCacheObjects(
VOID
);
extern
VOID
TsCacheSetSize(
DWORD cbMemoryCacheSize
);
extern
DWORD
TsCacheQueryMaxSize(
VOID
);
extern
DWORD
TsCacheQuerySize(
VOID
);
extern
dllexp
VOID
TsDecreaseFileHandleCount(
VOID
);
extern
VOID
TsIncreaseFileHandleCount(
BOOL
);
extern
dllexp
BOOL
TsDeCacheCachedBlob(
PVOID
);
extern
dllexp
BOOL
TsAddRefCachedBlob(
PVOID
);
# if defined( __cplusplus)
};
# endif
//
// defines the DIRECTORY_INFO class and functions to
// obtain and cache the directory information for a given directory.
//
//
// forwards
//
class TS_DIRECTORY_HEADER;
//
// Following function compares the two given pFileInfo and returns
// 0 if pFileInfo1 is == pfFileInfo2
// -1 if pFileInfo1 is < pFileInfo2
// +1 if pFileInfo1 is > pFileInfo2
//
typedef int ( __cdecl * PFN_CMP_WIN32_FIND_DATA)
(IN const void * /* PWIN32_FIND_DATA * */ pvFileInfo1,
IN const void * /* PWIN32_FIND_DATA * */ pvFileInfo2);
//
// Following function AlphaCompareFileBothDirInfo() compares the filenames,
// of the two given FileInfo present in (**pvFileInfo)
//
dllexp
int __cdecl
AlphaCompareFileBothDirInfo(
IN const void * /* PWIN32_FIND_DATA * */ pvFileInfo1,
IN const void * /* PWIN32_FIND_DATA * */ pvFileInfo2);
//
// Following function is to be used by filter function for filtering
// of the files requested. The criteria for matching is user supplied.
// Arguments:
// pFileInfo1 pointer to File Info object under consideration
// pContext user supplied context for the Filter Function
// Return values:
// 0 indicates that there is no match of context to FileInfo ==> filter
// 1 indicates that there is a match and hence dont filter
//
typedef int ( __cdecl * PFN_IS_MATCH_WIN32_FIND_DATA)
(IN const WIN32_FIND_DATA * pFileInfo,
IN LPVOID pContext);
//
// Following function RegExpressionMatchFileInfo() assumes that the
// context passed in is a pointer to null-terminated string and
// uses regular expression based comparison for matching against
// file name in WIN32_FIND_DATA passed in.
//
dllexp
int __cdecl
RegExpressionMatchFileInfo(
IN const WIN32_FIND_DATA * pFileInfo,
IN LPVOID pContext);
//
// Checks to see if the given name can be generated using the
// regular expression embedded in the pszExpression.
//
dllexp
BOOL _cdecl
IsNameInRegExpressionA(
IN LPCSTR pszExpression,
IN LPCSTR pszName,
IN BOOL fIgnoreCase);
/*++
class TS_DIRECTORY_INFO
This class provides a method to obtain directory listings.
The directory listing may be optionally cached transparently.
In addition this class provides methods for
1) accessing the information about files in indexed fashion
2) Sort the information about files using a generic sort function
given the compare funtion
3) Filters the listing applying filters the list of files available.
The strings in the File information obtained are stored as ANSI strings.
--*/
class TS_DIRECTORY_INFO {
public:
dllexp
TS_DIRECTORY_INFO( const TSVC_CACHE & tsCache)
: m_cFilesInDirectory ( 0),
m_fValid ( FALSE),
m_tsCache ( tsCache),
m_pTsDirectoryHeader( NULL),
m_prgFileInfo ( NULL)
{
// the data stored may be valid after user calls GetDirectoryListing()
}
dllexp
~TS_DIRECTORY_INFO( VOID)
{ CleanupThis(); }
dllexp
VOID CleanupThis( VOID);
dllexp
BOOL IsValid( VOID) const
{ return ( m_fValid); }
dllexp
BOOL
GetDirectoryListingA(
IN LPCSTR pszDirectoryName,
IN HANDLE hListingUser);
dllexp
int QueryFilesCount( VOID) const
{ return ( m_cFilesInDirectory); }
dllexp
const WIN32_FIND_DATA *
operator [] ( IN int idx) const {
return ( 0 <= idx && idx < QueryFilesCount()) ?
GetFileInfoPointerFromIdx( idx) : NULL;
}
dllexp
BOOL
SortFileInfoPointers( IN PFN_CMP_WIN32_FIND_DATA pfnCompare);
BOOL
AlphabeticallySortFileInfo( VOID) {
return SortFileInfoPointers( AlphaCompareFileBothDirInfo);
}
//
// Filter functions are used to eliminate some of the file
// pointers to be used in scanning ( using operator []).
//
//
// This function uses the pfnMatch to identify the items that dont match
// and filters them away from the directory listing generated.
// The filter function returns TRUE on success and FALSE if any errors.
//
dllexp
BOOL FilterFiles(IN PFN_IS_MATCH_WIN32_FIND_DATA pfnMatch,
IN LPVOID pContext);
# ifdef UNICODE
dllexp
BOOL
GetDirectoryListingW(
IN LPCWSTR pwszDirectoryName,
IN HANDLE hListingUser);
# define GetDirectoryListing GetDirectoryListingW
# else
# define GetDirectoryListing GetDirectoryListingA
# endif // UNICODE
# if DBG
dllexp
VOID Print( VOID) const;
#else
dllexp
VOID Print( VOID) const
{ ; }
# endif // DBG
private:
int m_cFilesInDirectory;
BOOL m_fValid;
const TSVC_CACHE & m_tsCache;
TS_DIRECTORY_HEADER * m_pTsDirectoryHeader; // ptr to dir listing
PWIN32_FIND_DATA * m_prgFileInfo;
dllexp
PWIN32_FIND_DATA
GetFileInfoPointerFromIdx( IN int idx) const
{ return ( m_prgFileInfo[idx]); }
}; // class TS_DIRECTORY_INFO
typedef TS_DIRECTORY_INFO * PTS_DIRECTORY_INFO;
//
// The structure of Physical Open File Information. This structure
// is used to access a file opened by TSCreateFile or TsCreateFileFromURI.
//
typedef struct _PHYS_OPEN_FILE_INFO {
DWORD Signature;
HANDLE hOpenFile;
HANDLE hOpenEvent;
LIST_ENTRY OpenReferenceList;
BOOL fSecurityDescriptor;
BOOL fIsCached;
DWORD dwLastError;
DWORD cbSecDescMaxSize;
PSECURITY_DESCRIPTOR abSecurityDescriptor;
struct _OPLOCK_OBJECT * pOplock;
} PHYS_OPEN_FILE_INFO, *PPHYS_OPEN_FILE_INFO;
#define PHYS_OBJ_SIGNATURE ((DWORD)'SYHP')
#define PHYS_OBJ_SIGNATURE_X ((DWORD)'yhpX')
/*++
Class TS_OPEN_FILE_INFO
This class maintains the raw information related to open file handles
that are possibly cached within user-space.
In addition to the file handles themselves, the file attribute information
and handle for the opening user are both cached.
Presently both constructor and destructor are both dummy to keep in
tune with original "C" APIs for TsCreateFile() and TsCloseFile() written
by Heath.
--*/
class TS_OPEN_FILE_INFO {
#ifndef CHICAGO
private:
#else
public:
#endif
HANDLE m_hOpeningUser;
PPHYS_OPEN_FILE_INFO m_PhysFileInfo;
BY_HANDLE_FILE_INFORMATION m_FileInfo;
__int64 m_CastratedLastWriteTime; // Reduced to 1 second granularity
CHAR m_achHttpInfo[MAX_SIZE_HTTP_INFO];
int m_cchHttpInfo;
CHAR m_achETag[MAX_ETAG_BUFFER_LENGTH];
DWORD m_cchETag;
BOOL m_ETagIsWeak;
BOOL m_fIsCached;
public:
TS_OPEN_FILE_INFO( VOID)
: m_PhysFileInfo( NULL),
m_hOpeningUser( INVALID_HANDLE_VALUE),
m_fIsCached( FALSE ),
m_cchHttpInfo( 0 ),
m_ETagIsWeak(TRUE)
{ }
~TS_OPEN_FILE_INFO( VOID) {}
dllexp PSECURITY_DESCRIPTOR GetSecurityDescriptor( VOID )
{ return (PSECURITY_DESCRIPTOR)m_PhysFileInfo->abSecurityDescriptor; }
dllexp DWORD GetSecurityDescriptorMaxLength( VOID )
{ return m_PhysFileInfo->cbSecDescMaxSize; }
dllexp BOOL IsSecurityDescriptorValid( VOID )
{ return m_PhysFileInfo->fSecurityDescriptor != 0; }
dllexp VOID SetSecurityDescriptorValid( BOOL fV )
{ m_PhysFileInfo->fSecurityDescriptor = fV; }
dllexp VOID SetCachedFlag( BOOL flag )
{ m_fIsCached = flag; }
dllexp BOOL QueryCachedFlag( VOID )
{ return m_fIsCached; }
BOOL
SetFileInfo( IN PPHYS_OPEN_FILE_INFO lpPhysFileInfo,
IN HANDLE hOpeningUser,
IN BOOL fAtRoot,
IN DWORD cbSecDescCacheSize = 0,
IN DWORD dwAttributes = 0 );
//
// Returns TRUE if info was cached, FALSE if not cached
//
dllexp BOOL
SetHttpInfo( IN PSTR pszDate, int cL );
dllexp HANDLE
QueryFileHandle( VOID) const
{ return ( m_PhysFileInfo->hOpenFile); }
dllexp PPHYS_OPEN_FILE_INFO
QueryPhysFileInfo( VOID) const
{ ASSERT( m_PhysFileInfo->Signature == PHYS_OBJ_SIGNATURE );
return ( m_PhysFileInfo); }
dllexp HANDLE
QueryOpeningUser( VOID) const
{ return ( m_hOpeningUser); }
dllexp BOOL
IsValid( VOID) const
{ return ( m_PhysFileInfo->hOpenFile != INVALID_HANDLE_VALUE); }
dllexp BOOL
RetrieveHttpInfo( PSTR pS, int *pcHttpInfo )
{
if ( m_cchHttpInfo )
{
memcpy( pS, m_achHttpInfo, m_cchHttpInfo+1 );
*pcHttpInfo = m_cchHttpInfo;
return TRUE;
}
else
return FALSE;
}
dllexp BOOL
QuerySize( IN LARGE_INTEGER & liSize) const
{
if ( IsValid()) {
liSize.LowPart = m_FileInfo.nFileSizeLow;
liSize.HighPart= m_FileInfo.nFileSizeHigh;
return (TRUE);
} else {
SetLastError( ERROR_INVALID_PARAMETER);
return ( FALSE);
}
}
dllexp BOOL
QuerySize( IN LPDWORD lpcbFileSizeLow,
IN LPDWORD lpcbFileSizeHigh = NULL) const
{
if ( IsValid()) {
if ( lpcbFileSizeLow != NULL) {
*lpcbFileSizeLow = m_FileInfo.nFileSizeLow;
}
if ( lpcbFileSizeHigh != NULL) {
*lpcbFileSizeHigh = m_FileInfo.nFileSizeHigh;
}
return ( TRUE);
} else {
SetLastError( ERROR_INVALID_PARAMETER);
return ( FALSE);
}
} // QuerySize()
dllexp DWORD
QueryAttributes( VOID) const
{ return ( IsValid()) ?
( m_FileInfo.dwFileAttributes) : 0xFFFFFFFF; }
//
// This returns the time with a one second resolution (at best)
//
dllexp BOOL
QueryLastWriteTime( OUT LPFILETIME lpFileTime) const
{
if ( lpFileTime != NULL && IsValid()) {
*((__int64 * UNALIGNED) lpFileTime) = m_CastratedLastWriteTime;
return ( TRUE);
} else {
SetLastError( ERROR_INVALID_PARAMETER);
return ( FALSE);
}
} // QueryLastWriteTime()
//
// This returns the time with full resolution from the file system
//
dllexp BOOL
QueryFileSystemLastWriteTime( OUT __int64 UNALIGNED * lpNTTime) const
{
if ( lpNTTime != NULL && IsValid()) {
*((FILETIME * UNALIGNED) lpNTTime) = m_FileInfo.ftLastWriteTime;
return ( TRUE);
} else {
SetLastError( ERROR_INVALID_PARAMETER);
return ( FALSE);
}
} // QueryFileSystemLastWriteTime()
dllexp BOOL
WeakETag( void ) const
{ return ( m_ETagIsWeak ); }
dllexp PCHAR
QueryETag( void ) const
{ return ( (PCHAR)m_achETag ); }
dllexp DWORD
QueryETagLength( void ) const
{ return ( m_cchETag ); }
dllexp VOID
MakeStrongETag( void );
# if DBG
VOID Print( VOID) const;
# endif // DBG
}; // class TS_OPEN_FILE_INFO
typedef TS_OPEN_FILE_INFO * LPTS_OPEN_FILE_INFO;
#define TS_CACHING_DESIRED 0x00000001
#define TS_NOT_IMPERSONATED 0x00000002
#define TS_NO_ACCESS_CHECK 0x00000004
#define TS_DONT_CACHE_ACCESS_TOKEN 0x00000008
#define TS_USE_WIN32_CANON 0x00000010
//
// Flags applicable to the different servers
//
#define TS_IIS_VALID_FLAGS (TS_CACHING_DESIRED | \
TS_NO_ACCESS_CHECK | \
TS_DONT_CACHE_ACCESS_TOKEN | \
TS_NOT_IMPERSONATED | \
TS_USE_WIN32_CANON)
#define TS_PWS_VALID_FLAGS (TS_NOT_IMPERSONATED | \
TS_USE_WIN32_CANON)
//
// The structure of URI Object information. This stucture contains
// pointers to cached meta information about a URI as well as
// information about the actual file to which the URI is mapped.
//
typedef struct _W3_URI_INFO {
DWORD bFileInfoValid;
BOOL bIsCached;
HANDLE hFileEvent;
LPTS_OPEN_FILE_INFO pOpenFileInfo;
DWORD dwFileOpenError;
UINT cchName;
PCHAR pszName;
PCHAR pszUnmappedName;
class W3_METADATA *pMetaData;
} W3_URI_INFO, *PW3_URI_INFO;
extern
dllexp
LPTS_OPEN_FILE_INFO
TsCreateFile(
IN const TSVC_CACHE &TSvcCache,
IN LPCSTR lpszName,
IN HANDLE OpeningUser,
IN DWORD dwOptions
);
extern
dllexp
PSECURITY_DESCRIPTOR
TsGetFileSecDesc(
IN LPTS_OPEN_FILE_INFO pFile
);
extern
dllexp
BOOL TsCloseHandle(
IN const TSVC_CACHE &TSvcCache,
IN LPTS_OPEN_FILE_INFO pOpenFile
);
extern
dllexp
LPTS_OPEN_FILE_INFO
TsCreateFileFromURI(
IN const TSVC_CACHE &TSvcCache,
IN PW3_URI_INFO pURIInfo,
IN HANDLE OpeningUser,
IN DWORD dwOptions,
IN DWORD *dwError
);
extern
dllexp
BOOL TsCloseURIFile(
IN LPTS_OPEN_FILE_INFO pOpenFile
);
extern
dllexp
BOOL TsCreateETagFromHandle(
IN HANDLE hFile,
IN PCHAR ETag,
IN BOOL *bWeakETag
);
extern
dllexp
BOOL TsLastWriteTimeFromHandle(
IN HANDLE hFile,
IN FILETIME *tm
);
extern
dllexp
VOID
TsFlushURL(
IN const TSVC_CACHE &TSvcCache,
IN LPCSTR pszURL,
IN DWORD dwURLLength,
IN DWORD dwDemux
);
# endif // _TSUNAMI_HXX_
/************************ End of File ***********************/
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