[ion] 22936: [FORMATTING] - STDCALL->NTAPI changes, tab->Spaces, name decoration, etc. - Add Eric's name since when I copied security.c into file.c, I forgot to add his name as well for that code.
8 Jul
2006
8 Jul
'06
6:57 p.m.
Author: ion
Date: Sat Jul 8 22:57:51 2006
New Revision: 22936
URL: http://svn.reactos.org/svn/reactos?rev=22936&view=rev
Log:
[FORMATTING] - STDCALL->NTAPI changes, tab->Spaces, name decoration, etc.
- Add Eric's name since when I copied security.c into file.c, I forgot to
add his name as well for that code.
Modified:
trunk/reactos/ntoskrnl/io/iomgr/file.c
Modified: trunk/reactos/ntoskrnl/io/iomgr/file.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/file.c?r…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/file.c (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/file.c Sat Jul 8 22:57:51 2006
@@ -5,6 +5,7 @@
* PURPOSE: Functions that deal with managing the FILE_OBJECT itself.
* PROGRAMMERS: Alex Ionescu (alex.ionescu(a)reactos.org)
* Gunnar Dalsnes
+ * Eric Kohl
* Filip Navara (navaraf(a)reactos.org)
*/
@@ -1197,7 +1198,7 @@
* @unimplemented
*/
NTSTATUS
-STDCALL
+NTAPI
IoCheckQuotaBufferValidity(IN PFILE_QUOTA_INFORMATION QuotaBuffer,
IN ULONG QuotaLength,
OUT PULONG ErrorOffset)
@@ -1457,7 +1458,7 @@
* @unimplemented
*/
NTSTATUS
-STDCALL
+NTAPI
IoCreateFileSpecifyDeviceObjectHint(OUT PHANDLE FileHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes,
@@ -1534,7 +1535,7 @@
* @unimplemented
*/
PFILE_OBJECT
-STDCALL
+NTAPI
IoCreateStreamFileObjectEx(IN PFILE_OBJECT FileObject OPTIONAL,
IN PDEVICE_OBJECT DeviceObject OPTIONAL,
OUT PHANDLE FileObjectHandle OPTIONAL)
@@ -1547,7 +1548,7 @@
* @unimplemented
*/
PFILE_OBJECT
-STDCALL
+NTAPI
IoCreateStreamFileObjectLite(IN PFILE_OBJECT FileObject OPTIONAL,
IN PDEVICE_OBJECT DeviceObject OPTIONAL)
{
@@ -1559,9 +1560,10 @@
* @implemented
*/
PGENERIC_MAPPING
-STDCALL
+NTAPI
IoGetFileObjectGenericMapping(VOID)
{
+ /* Return the mapping */
return &IopFileMapping;
}
@@ -1574,6 +1576,264 @@
{
/* Return the flag status */
return (FileObject->Flags & FO_REMOTE_ORIGIN);
+}
+
+/*
+ * @implemented
+ */
+BOOLEAN
+NTAPI
+IoFastQueryNetworkAttributes(IN POBJECT_ATTRIBUTES ObjectAttributes,
+ IN ACCESS_MASK DesiredAccess,
+ IN ULONG OpenOptions,
+ OUT PIO_STATUS_BLOCK IoStatus,
+ OUT PFILE_NETWORK_OPEN_INFORMATION Buffer)
+{
+ NTSTATUS Status;
+ DUMMY_FILE_OBJECT DummyFileObject;
+ HANDLE Handle;
+ OPEN_PACKET OpenPacket;
+ PAGED_CODE();
+
+ /* Setup the Open Packet */
+ OpenPacket.Type = IO_TYPE_OPEN_PACKET;
+ OpenPacket.Size = sizeof(OPEN_PACKET);
+ OpenPacket.FileObject = NULL;
+ OpenPacket.FinalStatus = STATUS_SUCCESS;
+ OpenPacket.Information = 0;
+ OpenPacket.ParseCheck = 0;
+ OpenPacket.RelatedFileObject = NULL;
+ OpenPacket.AllocationSize.QuadPart = 0;
+ OpenPacket.CreateOptions = OpenOptions | FILE_OPEN_REPARSE_POINT;
+ OpenPacket.FileAttributes = 0;
+ OpenPacket.ShareAccess = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
+ OpenPacket.EaBuffer = NULL;
+ OpenPacket.EaLength = 0;
+ OpenPacket.Options = IO_FORCE_ACCESS_CHECK;
+ OpenPacket.Disposition = FILE_OPEN;
+ OpenPacket.BasicInformation = NULL;
+ OpenPacket.NetworkInformation = Buffer;
+ OpenPacket.CreateFileType = 0;
+ OpenPacket.MailslotOrPipeParameters = NULL;
+ OpenPacket.Override = FALSE;
+ OpenPacket.QueryOnly = TRUE;
+ OpenPacket.DeleteOnly = FALSE;
+ OpenPacket.FullAttributes = TRUE;
+ OpenPacket.DummyFileObject = &DummyFileObject;
+ OpenPacket.InternalFlags = 0;
+
+ /*
+ * Attempt opening the file. This will call the I/O Parse Routine for
+ * the File Object (IopParseDevice) which will use the dummy file obejct
+ * send the IRP to its device object. Note that we have two statuses
+ * to worry about: the Object Manager's status (in Status) and the I/O
+ * status, which is in the Open Packet's Final Status, and determined
+ * by the Parse Check member.
+ */
+ Status = ObOpenObjectByName(ObjectAttributes,
+ NULL,
+ KernelMode,
+ NULL,
+ DesiredAccess,
+ &OpenPacket,
+ &Handle);
+ if (OpenPacket.ParseCheck != TRUE)
+ {
+ /* Parse failed */
+ IoStatus->Status = Status;
+ }
+ else
+ {
+ /* Use the Io status */
+ IoStatus->Status = OpenPacket.FinalStatus;
+ IoStatus->Information = OpenPacket.Information;
+ }
+
+ /* Return success */
+ return TRUE;
+}
+
+/*
+ * @implemented
+ */
+VOID
+NTAPI
+IoUpdateShareAccess(IN PFILE_OBJECT FileObject,
+ OUT PSHARE_ACCESS ShareAccess)
+{
+ PAGED_CODE();
+
+ if (FileObject->ReadAccess ||
+ FileObject->WriteAccess ||
+ FileObject->DeleteAccess)
+ {
+ ShareAccess->OpenCount++;
+
+ ShareAccess->Readers += FileObject->ReadAccess;
+ ShareAccess->Writers += FileObject->WriteAccess;
+ ShareAccess->Deleters += FileObject->DeleteAccess;
+ ShareAccess->SharedRead += FileObject->SharedRead;
+ ShareAccess->SharedWrite += FileObject->SharedWrite;
+ ShareAccess->SharedDelete += FileObject->SharedDelete;
+ }
+}
+
+
+/*
+ * @implemented
+ */
+NTSTATUS
+NTAPI
+IoCheckShareAccess(IN ACCESS_MASK DesiredAccess,
+ IN ULONG DesiredShareAccess,
+ IN PFILE_OBJECT FileObject,
+ IN PSHARE_ACCESS ShareAccess,
+ IN BOOLEAN Update)
+{
+ BOOLEAN ReadAccess;
+ BOOLEAN WriteAccess;
+ BOOLEAN DeleteAccess;
+ BOOLEAN SharedRead;
+ BOOLEAN SharedWrite;
+ BOOLEAN SharedDelete;
+ PAGED_CODE();
+
+ ReadAccess = (DesiredAccess & (FILE_READ_DATA | FILE_EXECUTE)) != 0;
+ WriteAccess = (DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA)) != 0;
+ DeleteAccess = (DesiredAccess & DELETE) != 0;
+
+ FileObject->ReadAccess = ReadAccess;
+ FileObject->WriteAccess = WriteAccess;
+ FileObject->DeleteAccess = DeleteAccess;
+
+ if (ReadAccess || WriteAccess || DeleteAccess)
+ {
+ SharedRead = (DesiredShareAccess & FILE_SHARE_READ) != 0;
+ SharedWrite = (DesiredShareAccess & FILE_SHARE_WRITE) != 0;
+ SharedDelete = (DesiredShareAccess & FILE_SHARE_DELETE) != 0;
+
+ FileObject->SharedRead = SharedRead;
+ FileObject->SharedWrite = SharedWrite;
+ FileObject->SharedDelete = SharedDelete;
+
+ if ((ReadAccess && (ShareAccess->SharedRead <
ShareAccess->OpenCount)) ||
+ (WriteAccess && (ShareAccess->SharedWrite <
ShareAccess->OpenCount)) ||
+ (DeleteAccess && (ShareAccess->SharedDelete <
ShareAccess->OpenCount)) ||
+ ((ShareAccess->Readers != 0) && !SharedRead) ||
+ ((ShareAccess->Writers != 0) && !SharedWrite) ||
+ ((ShareAccess->Deleters != 0) && !SharedDelete))
+ {
+ return(STATUS_SHARING_VIOLATION);
+ }
+
+ if (Update)
+ {
+ ShareAccess->OpenCount++;
+
+ ShareAccess->Readers += ReadAccess;
+ ShareAccess->Writers += WriteAccess;
+ ShareAccess->Deleters += DeleteAccess;
+ ShareAccess->SharedRead += SharedRead;
+ ShareAccess->SharedWrite += SharedWrite;
+ ShareAccess->SharedDelete += SharedDelete;
+ }
+ }
+
+ return(STATUS_SUCCESS);
+}
+
+/*
+ * @implemented
+ */
+VOID
+NTAPI
+IoRemoveShareAccess(IN PFILE_OBJECT FileObject,
+ IN PSHARE_ACCESS ShareAccess)
+{
+ PAGED_CODE();
+
+ if (FileObject->ReadAccess ||
+ FileObject->WriteAccess ||
+ FileObject->DeleteAccess)
+ {
+ ShareAccess->OpenCount--;
+
+ ShareAccess->Readers -= FileObject->ReadAccess;
+ ShareAccess->Writers -= FileObject->WriteAccess;
+ ShareAccess->Deleters -= FileObject->DeleteAccess;
+ ShareAccess->SharedRead -= FileObject->SharedRead;
+ ShareAccess->SharedWrite -= FileObject->SharedWrite;
+ ShareAccess->SharedDelete -= FileObject->SharedDelete;
+ }
+}
+
+/*
+ * @implemented
+ */
+VOID
+NTAPI
+IoSetShareAccess(IN ACCESS_MASK DesiredAccess,
+ IN ULONG DesiredShareAccess,
+ IN PFILE_OBJECT FileObject,
+ OUT PSHARE_ACCESS ShareAccess)
+{
+ BOOLEAN ReadAccess;
+ BOOLEAN WriteAccess;
+ BOOLEAN DeleteAccess;
+ BOOLEAN SharedRead;
+ BOOLEAN SharedWrite;
+ BOOLEAN SharedDelete;
+ PAGED_CODE();
+
+ ReadAccess = (DesiredAccess & (FILE_READ_DATA | FILE_EXECUTE)) != 0;
+ WriteAccess = (DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA)) != 0;
+ DeleteAccess = (DesiredAccess & DELETE) != 0;
+
+ FileObject->ReadAccess = ReadAccess;
+ FileObject->WriteAccess = WriteAccess;
+ FileObject->DeleteAccess = DeleteAccess;
+
+ if (!ReadAccess && !WriteAccess && !DeleteAccess)
+ {
+ ShareAccess->OpenCount = 0;
+ ShareAccess->Readers = 0;
+ ShareAccess->Writers = 0;
+ ShareAccess->Deleters = 0;
+
+ ShareAccess->SharedRead = 0;
+ ShareAccess->SharedWrite = 0;
+ ShareAccess->SharedDelete = 0;
+ }
+ else
+ {
+ SharedRead = (DesiredShareAccess & FILE_SHARE_READ) != 0;
+ SharedWrite = (DesiredShareAccess & FILE_SHARE_WRITE) != 0;
+ SharedDelete = (DesiredShareAccess & FILE_SHARE_DELETE) != 0;
+
+ FileObject->SharedRead = SharedRead;
+ FileObject->SharedWrite = SharedWrite;
+ FileObject->SharedDelete = SharedDelete;
+
+ ShareAccess->OpenCount = 1;
+ ShareAccess->Readers = ReadAccess;
+ ShareAccess->Writers = WriteAccess;
+ ShareAccess->Deleters = DeleteAccess;
+
+ ShareAccess->SharedRead = SharedRead;
+ ShareAccess->SharedWrite = SharedWrite;
+ ShareAccess->SharedDelete = SharedDelete;
+ }
+}
+
+/*
+ * @unimplemented
+ */
+VOID
+STDCALL
+IoCancelFileOpen(IN PDEVICE_OBJECT DeviceObject,
+ IN PFILE_OBJECT FileObject)
+{
+ UNIMPLEMENTED;
}
/*
@@ -1601,25 +1861,7 @@
}
-
/*
- * NAME EXPORTED
- * NtCreateFile@44
- *
- * DESCRIPTION
- * Entry point to call IoCreateFile with
- * default parameters.
- *
- * ARGUMENTS
- * See IoCreateFile.
- *
- * RETURN VALUE
- * See IoCreateFile.
- *
- * REVISIONS
- * 2000-03-25 (ea)
- * Code originally in NtCreateFile moved in IoCreateFile.
- *
* @implemented
*/
NTSTATUS
@@ -1665,41 +1907,44 @@
IN PLARGE_INTEGER TimeOut)
{
MAILSLOT_CREATE_PARAMETERS Buffer;
-
- DPRINT("NtCreateMailslotFile(FileHandle 0x%p, DesiredAccess %x, "
- "ObjectAttributes 0x%p)\n",
- FileHandle,DesiredAccess,ObjectAttributes);
-
+ NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
/* Check for Timeout */
- if (TimeOut != NULL)
- {
+ if (DefaultTimeout)
+ {
+ /* check if the call came from user mode */
if (KeGetPreviousMode() != KernelMode)
{
- NTSTATUS Status = STATUS_SUCCESS;
-
+ /* Enter SEH for Probe */
_SEH_TRY
{
- Buffer.ReadTimeout = ProbeForReadLargeInteger(TimeOut);
+ /* Probe the timeout */
+ Buffer.DefaultTimeout =
+ ProbeForReadLargeInteger(DefaultTimeout);
}
_SEH_HANDLE
{
+ /* Get exception code */
Status = _SEH_GetExceptionCode();
}
_SEH_END;
+ /* Return the exception */
if (!NT_SUCCESS(Status)) return Status;
}
else
{
- Buffer.ReadTimeout = *TimeOut;
- }
-
+ /* Otherwise, capture directly */
+ Buffer.DefaultTimeout = *DefaultTimeout;
+ }
+
+ /* Set the correct setting */
Buffer.TimeoutSpecified = TRUE;
}
else
{
+ /* Tell the FSD we don't have a timeout */
Buffer.TimeoutSpecified = FALSE;
}
@@ -1713,7 +1958,7 @@
ObjectAttributes,
IoStatusBlock,
NULL,
- FILE_ATTRIBUTE_NORMAL,
+ 0,
FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_CREATE,
CreateOptions,
@@ -1725,58 +1970,63 @@
}
NTSTATUS
-STDCALL
-NtCreateNamedPipeFile(PHANDLE FileHandle,
- ACCESS_MASK DesiredAccess,
- POBJECT_ATTRIBUTES ObjectAttributes,
- PIO_STATUS_BLOCK IoStatusBlock,
- ULONG ShareAccess,
- ULONG CreateDisposition,
- ULONG CreateOptions,
- ULONG NamedPipeType,
- ULONG ReadMode,
- ULONG CompletionMode,
- ULONG MaximumInstances,
- ULONG InboundQuota,
- ULONG OutboundQuota,
- PLARGE_INTEGER DefaultTimeout)
+NTAPI
+NtCreateNamedPipeFile(OUT PHANDLE FileHandle,
+ IN ACCESS_MASK DesiredAccess,
+ IN POBJECT_ATTRIBUTES ObjectAttributes,
+ OUT PIO_STATUS_BLOCK IoStatusBlock,
+ IN ULONG ShareAccess,
+ IN ULONG CreateDisposition,
+ IN ULONG CreateOptions,
+ IN ULONG NamedPipeType,
+ IN ULONG ReadMode,
+ IN ULONG CompletionMode,
+ IN ULONG MaximumInstances,
+ IN ULONG InboundQuota,
+ IN ULONG OutboundQuota,
+ IN PLARGE_INTEGER DefaultTimeout)
{
NAMED_PIPE_CREATE_PARAMETERS Buffer;
-
- DPRINT("NtCreateNamedPipeFile(FileHandle 0x%p, DesiredAccess %x, "
- "ObjectAttributes 0x%p)\n",
- FileHandle,DesiredAccess,ObjectAttributes);
-
+ NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
/* Check for Timeout */
- if (DefaultTimeout != NULL)
- {
+ if (DefaultTimeout)
+ {
+ /* check if the call came from user mode */
if (KeGetPreviousMode() != KernelMode)
{
- NTSTATUS Status = STATUS_SUCCESS;
-
+ /* Enter SEH for Probe */
_SEH_TRY
{
- Buffer.DefaultTimeout = ProbeForReadLargeInteger(DefaultTimeout);
+ /* Probe the timeout */
+ Buffer.DefaultTimeout =
+ ProbeForReadLargeInteger(DefaultTimeout);
}
_SEH_HANDLE
{
+ /* Get exception code */
Status = _SEH_GetExceptionCode();
}
_SEH_END;
+ /* Return the exception */
if (!NT_SUCCESS(Status)) return Status;
}
else
{
+ /* Otherwise, capture directly */
Buffer.DefaultTimeout = *DefaultTimeout;
}
+ /* Set the correct setting */
Buffer.TimeoutSpecified = TRUE;
}
else
+ {
+ /* Tell the FSD we don't have a timeout */
Buffer.TimeoutSpecified = FALSE;
+ }
/* Set Settings */
Buffer.NamedPipeType = NamedPipeType;
@@ -1792,7 +2042,7 @@
ObjectAttributes,
IoStatusBlock,
NULL,
- FILE_ATTRIBUTE_NORMAL,
+ 0,
ShareAccess,
CreateDisposition,
CreateOptions,
@@ -1804,58 +2054,27 @@
}
NTSTATUS
-STDCALL
+NTAPI
NtFlushWriteBuffer(VOID)
{
PAGED_CODE();
+ /* Call the kernel */
KeFlushWriteBuffer();
return STATUS_SUCCESS;
}
/*
- * NAME EXPORTED
- * NtOpenFile@24
- *
- * DESCRIPTION
- * Opens an existing file (simpler than NtCreateFile).
- *
- * ARGUMENTS
- * FileHandle (OUT)
- * Variable that receives the file handle on return;
- *
- * DesiredAccess
- * Access desired by the caller to the file;
- *
- * ObjectAttributes
- * Structue describing the file to be opened;
- *
- * IoStatusBlock (OUT)
- * Receives details about the result of the
- * operation;
- *
- * ShareAccess
- * Type of shared access the caller requires;
- *
- * OpenOptions
- * Options for the file open.
- *
- * RETURN VALUE
- * Status.
- *
- * NOTE
- * Undocumented.
- *
* @implemented
*/
NTSTATUS
-STDCALL
-NtOpenFile(PHANDLE FileHandle,
- ACCESS_MASK DesiredAccess,
- POBJECT_ATTRIBUTES ObjectAttributes,
- PIO_STATUS_BLOCK IoStatusBlock,
- ULONG ShareAccess,
- ULONG OpenOptions)
+NTAPI
+NtOpenFile(OUT PHANDLE FileHandle,
+ IN ACCESS_MASK DesiredAccess,
+ IN POBJECT_ATTRIBUTES ObjectAttributes,
+ OUT PIO_STATUS_BLOCK IoStatusBlock,
+ IN ULONG ShareAccess,
+ IN ULONG OpenOptions)
{
/* Call the I/O Function */
return IoCreateFile(FileHandle,
@@ -1875,7 +2094,7 @@
}
NTSTATUS
-STDCALL
+NTAPI
NtQueryAttributesFile(IN POBJECT_ATTRIBUTES ObjectAttributes,
OUT PFILE_BASIC_INFORMATION FileInformation)
{
@@ -1887,7 +2106,7 @@
}
NTSTATUS
-STDCALL
+NTAPI
NtQueryFullAttributesFile(IN POBJECT_ATTRIBUTES ObjectAttributes,
OUT PFILE_NETWORK_OPEN_INFORMATION FileInformation)
{
@@ -2089,263 +2308,4 @@
return OpenPacket.FinalStatus;
}
-/*
- * @implemented
- */
-BOOLEAN
-NTAPI
-IoFastQueryNetworkAttributes(IN POBJECT_ATTRIBUTES ObjectAttributes,
- IN ACCESS_MASK DesiredAccess,
- IN ULONG OpenOptions,
- OUT PIO_STATUS_BLOCK IoStatus,
- OUT PFILE_NETWORK_OPEN_INFORMATION Buffer)
-{
- NTSTATUS Status;
- DUMMY_FILE_OBJECT DummyFileObject;
- HANDLE Handle;
- OPEN_PACKET OpenPacket;
- PAGED_CODE();
-
- /* Setup the Open Packet */
- OpenPacket.Type = IO_TYPE_OPEN_PACKET;
- OpenPacket.Size = sizeof(OPEN_PACKET);
- OpenPacket.FileObject = NULL;
- OpenPacket.FinalStatus = STATUS_SUCCESS;
- OpenPacket.Information = 0;
- OpenPacket.ParseCheck = 0;
- OpenPacket.RelatedFileObject = NULL;
- OpenPacket.AllocationSize.QuadPart = 0;
- OpenPacket.CreateOptions = OpenOptions | FILE_OPEN_REPARSE_POINT;
- OpenPacket.FileAttributes = 0;
- OpenPacket.ShareAccess = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
- OpenPacket.EaBuffer = NULL;
- OpenPacket.EaLength = 0;
- OpenPacket.Options = IO_FORCE_ACCESS_CHECK;
- OpenPacket.Disposition = FILE_OPEN;
- OpenPacket.BasicInformation = NULL;
- OpenPacket.NetworkInformation = Buffer;
- OpenPacket.CreateFileType = 0;
- OpenPacket.MailslotOrPipeParameters = NULL;
- OpenPacket.Override = FALSE;
- OpenPacket.QueryOnly = TRUE;
- OpenPacket.DeleteOnly = FALSE;
- OpenPacket.FullAttributes = TRUE;
- OpenPacket.DummyFileObject = &DummyFileObject;
- OpenPacket.InternalFlags = 0;
-
- /*
- * Attempt opening the file. This will call the I/O Parse Routine for
- * the File Object (IopParseDevice) which will use the dummy file obejct
- * send the IRP to its device object. Note that we have two statuses
- * to worry about: the Object Manager's status (in Status) and the I/O
- * status, which is in the Open Packet's Final Status, and determined
- * by the Parse Check member.
- */
- Status = ObOpenObjectByName(ObjectAttributes,
- NULL,
- KernelMode,
- NULL,
- DesiredAccess,
- &OpenPacket,
- &Handle);
- if (OpenPacket.ParseCheck != TRUE)
- {
- /* Parse failed */
- IoStatus->Status = Status;
- }
- else
- {
- /* Use the Io status */
- IoStatus->Status = OpenPacket.FinalStatus;
- IoStatus->Information = OpenPacket.Information;
- }
-
- /* Return success */
- return TRUE;
-}
-
-/*
- * @implemented
- */
-VOID STDCALL
-IoUpdateShareAccess(PFILE_OBJECT FileObject,
- PSHARE_ACCESS ShareAccess)
-{
- PAGED_CODE();
-
- if (FileObject->ReadAccess ||
- FileObject->WriteAccess ||
- FileObject->DeleteAccess)
- {
- ShareAccess->OpenCount++;
-
- ShareAccess->Readers += FileObject->ReadAccess;
- ShareAccess->Writers += FileObject->WriteAccess;
- ShareAccess->Deleters += FileObject->DeleteAccess;
- ShareAccess->SharedRead += FileObject->SharedRead;
- ShareAccess->SharedWrite += FileObject->SharedWrite;
- ShareAccess->SharedDelete += FileObject->SharedDelete;
- }
-}
-
-
-/*
- * @implemented
- */
-NTSTATUS STDCALL
-IoCheckShareAccess(IN ACCESS_MASK DesiredAccess,
- IN ULONG DesiredShareAccess,
- IN PFILE_OBJECT FileObject,
- IN PSHARE_ACCESS ShareAccess,
- IN BOOLEAN Update)
-{
- BOOLEAN ReadAccess;
- BOOLEAN WriteAccess;
- BOOLEAN DeleteAccess;
- BOOLEAN SharedRead;
- BOOLEAN SharedWrite;
- BOOLEAN SharedDelete;
-
- PAGED_CODE();
-
- ReadAccess = (DesiredAccess & (FILE_READ_DATA | FILE_EXECUTE)) != 0;
- WriteAccess = (DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA)) != 0;
- DeleteAccess = (DesiredAccess & DELETE) != 0;
-
- FileObject->ReadAccess = ReadAccess;
- FileObject->WriteAccess = WriteAccess;
- FileObject->DeleteAccess = DeleteAccess;
-
- if (ReadAccess || WriteAccess || DeleteAccess)
- {
- SharedRead = (DesiredShareAccess & FILE_SHARE_READ) != 0;
- SharedWrite = (DesiredShareAccess & FILE_SHARE_WRITE) != 0;
- SharedDelete = (DesiredShareAccess & FILE_SHARE_DELETE) != 0;
-
- FileObject->SharedRead = SharedRead;
- FileObject->SharedWrite = SharedWrite;
- FileObject->SharedDelete = SharedDelete;
-
- if ((ReadAccess && (ShareAccess->SharedRead <
ShareAccess->OpenCount)) ||
- (WriteAccess && (ShareAccess->SharedWrite <
ShareAccess->OpenCount)) ||
- (DeleteAccess && (ShareAccess->SharedDelete <
ShareAccess->OpenCount)) ||
- ((ShareAccess->Readers != 0) && !SharedRead) ||
- ((ShareAccess->Writers != 0) && !SharedWrite) ||
- ((ShareAccess->Deleters != 0) && !SharedDelete))
- {
- return(STATUS_SHARING_VIOLATION);
- }
-
- if (Update)
- {
- ShareAccess->OpenCount++;
-
- ShareAccess->Readers += ReadAccess;
- ShareAccess->Writers += WriteAccess;
- ShareAccess->Deleters += DeleteAccess;
- ShareAccess->SharedRead += SharedRead;
- ShareAccess->SharedWrite += SharedWrite;
- ShareAccess->SharedDelete += SharedDelete;
- }
- }
-
- return(STATUS_SUCCESS);
-}
-
-
-/*
- * @implemented
- */
-VOID STDCALL
-IoRemoveShareAccess(IN PFILE_OBJECT FileObject,
- IN PSHARE_ACCESS ShareAccess)
-{
- PAGED_CODE();
-
- if (FileObject->ReadAccess ||
- FileObject->WriteAccess ||
- FileObject->DeleteAccess)
- {
- ShareAccess->OpenCount--;
-
- ShareAccess->Readers -= FileObject->ReadAccess;
- ShareAccess->Writers -= FileObject->WriteAccess;
- ShareAccess->Deleters -= FileObject->DeleteAccess;
- ShareAccess->SharedRead -= FileObject->SharedRead;
- ShareAccess->SharedWrite -= FileObject->SharedWrite;
- ShareAccess->SharedDelete -= FileObject->SharedDelete;
- }
-}
-
-
-/*
- * @implemented
- */
-VOID STDCALL
-IoSetShareAccess(IN ACCESS_MASK DesiredAccess,
- IN ULONG DesiredShareAccess,
- IN PFILE_OBJECT FileObject,
- OUT PSHARE_ACCESS ShareAccess)
-{
- BOOLEAN ReadAccess;
- BOOLEAN WriteAccess;
- BOOLEAN DeleteAccess;
- BOOLEAN SharedRead;
- BOOLEAN SharedWrite;
- BOOLEAN SharedDelete;
-
- PAGED_CODE();
-
- ReadAccess = (DesiredAccess & (FILE_READ_DATA | FILE_EXECUTE)) != 0;
- WriteAccess = (DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA)) != 0;
- DeleteAccess = (DesiredAccess & DELETE) != 0;
-
- FileObject->ReadAccess = ReadAccess;
- FileObject->WriteAccess = WriteAccess;
- FileObject->DeleteAccess = DeleteAccess;
-
- if (!ReadAccess && !WriteAccess && !DeleteAccess)
- {
- ShareAccess->OpenCount = 0;
- ShareAccess->Readers = 0;
- ShareAccess->Writers = 0;
- ShareAccess->Deleters = 0;
-
- ShareAccess->SharedRead = 0;
- ShareAccess->SharedWrite = 0;
- ShareAccess->SharedDelete = 0;
- }
- else
- {
- SharedRead = (DesiredShareAccess & FILE_SHARE_READ) != 0;
- SharedWrite = (DesiredShareAccess & FILE_SHARE_WRITE) != 0;
- SharedDelete = (DesiredShareAccess & FILE_SHARE_DELETE) != 0;
-
- FileObject->SharedRead = SharedRead;
- FileObject->SharedWrite = SharedWrite;
- FileObject->SharedDelete = SharedDelete;
-
- ShareAccess->OpenCount = 1;
- ShareAccess->Readers = ReadAccess;
- ShareAccess->Writers = WriteAccess;
- ShareAccess->Deleters = DeleteAccess;
-
- ShareAccess->SharedRead = SharedRead;
- ShareAccess->SharedWrite = SharedWrite;
- ShareAccess->SharedDelete = SharedDelete;
- }
-}
-
-/*
- * @unimplemented
- */
-VOID
-STDCALL
-IoCancelFileOpen(
- IN PDEVICE_OBJECT DeviceObject,
- IN PFILE_OBJECT FileObject
- )
-{
- UNIMPLEMENTED;
-}
/* EOF */
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