4 Nov
2005
4 Nov
'05
7:32 p.m.
Revert 18883 and 18912, as they break named pipes
(These changes were correct per se, but another problem surfaced: see
http://www.reactos.org/archives/public/ros-dev/2005-November/005958.html
)
Modified: trunk/reactos/drivers/fs/np/create.c
Modified: trunk/reactos/lib/kernel32/file/npipe.c
Modified: trunk/reactos/lib/kernel32/file/pipe.c
_____
Modified: trunk/reactos/drivers/fs/np/create.c
--- trunk/reactos/drivers/fs/np/create.c 2005-11-04 18:58:38 UTC
(rev 19001)
+++ trunk/reactos/drivers/fs/np/create.c 2005-11-04 19:31:47 UTC
(rev 19002)
@@ -113,6 +113,7 @@
PNPFS_FCB ClientFcb;
PNPFS_FCB ServerFcb = NULL;
PNPFS_DEVICE_EXTENSION DeviceExt;
+ BOOLEAN SpecialAccess;
DPRINT("NpfsCreate(DeviceObject %p Irp %p)\n", DeviceObject, Irp);
@@ -124,6 +125,12 @@
Irp->IoStatus.Information = 0;
+ SpecialAccess = ((IoStack->Parameters.CreatePipe.ShareAccess & 3) ==
3);
+ if (SpecialAccess)
+ {
+ DPRINT("NpfsCreate() open client end for special use!\n");
+ }
+
/*
* Step 1. Find the pipe we're trying to open.
*/
@@ -165,7 +172,7 @@
ClientFcb->Pipe = Pipe;
ClientFcb->PipeEnd = FILE_PIPE_CLIENT_END;
ClientFcb->OtherSide = NULL;
- ClientFcb->PipeState = FILE_PIPE_DISCONNECTED_STATE;
+ ClientFcb->PipeState = SpecialAccess ? 0 :
FILE_PIPE_DISCONNECTED_STATE;
InitializeListHead(&ClientFcb->ReadRequestListHead);
DPRINT("Fcb: %x\n", ClientFcb);
@@ -204,56 +211,67 @@
* Step 3. Search for listening server FCB.
*/
- /*
- * WARNING: Point of no return! Once we get the server FCB it's
- * possible that we completed a wait request and so we have to
- * complete even this request.
- */
-
- ServerFcb = NpfsFindListeningServerInstance(Pipe);
- if (ServerFcb == NULL)
+ if (!SpecialAccess)
{
- PLIST_ENTRY CurrentEntry;
- PNPFS_FCB Fcb;
-
/*
- * If no waiting server FCB was found then try to pick
- * one of the listing server FCB on the pipe.
+ * WARNING: Point of no return! Once we get the server FCB it's
+ * possible that we completed a wait request and so we have to
+ * complete even this request.
*/
- CurrentEntry = Pipe->ServerFcbListHead.Flink;
- while (CurrentEntry != &Pipe->ServerFcbListHead)
+ ServerFcb = NpfsFindListeningServerInstance(Pipe);
+ if (ServerFcb == NULL)
{
- Fcb = CONTAINING_RECORD(CurrentEntry, NPFS_FCB,
FcbListEntry);
- if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
+ PLIST_ENTRY CurrentEntry;
+ PNPFS_FCB Fcb;
+
+ /*
+ * If no waiting server FCB was found then try to pick
+ * one of the listing server FCB on the pipe.
+ */
+
+ CurrentEntry = Pipe->ServerFcbListHead.Flink;
+ while (CurrentEntry != &Pipe->ServerFcbListHead)
{
- ServerFcb = Fcb;
- break;
+ Fcb = CONTAINING_RECORD(CurrentEntry, NPFS_FCB,
FcbListEntry);
+ if (Fcb->PipeState == FILE_PIPE_LISTENING_STATE)
+ {
+ ServerFcb = Fcb;
+ break;
+ }
+ CurrentEntry = CurrentEntry->Flink;
}
- CurrentEntry = CurrentEntry->Flink;
- }
- /*
- * No one is listening to me?! I'm so lonely... :(
- */
+ /*
+ * No one is listening to me?! I'm so lonely... :(
+ */
- if (ServerFcb == NULL)
+ if (ServerFcb == NULL)
+ {
+ /* Not found, bail out with error for FILE_OPEN requests.
*/
+ DPRINT("No listening server fcb found!\n");
+ if (ClientFcb->Data)
+ ExFreePool(ClientFcb->Data);
+ KeUnlockMutex(&Pipe->FcbListLock);
+ Irp->IoStatus.Status = STATUS_PIPE_BUSY;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return STATUS_PIPE_BUSY;
+ }
+ }
+ else
{
- /* Not found, bail out with error for FILE_OPEN requests. */
- DPRINT("No listening server fcb found!\n");
- if (ClientFcb->Data)
- ExFreePool(ClientFcb->Data);
- KeUnlockMutex(&Pipe->FcbListLock);
- Irp->IoStatus.Status = STATUS_PIPE_NOT_AVAILABLE;
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
- return STATUS_PIPE_NOT_AVAILABLE;
+ /* Signal the server thread and remove it from the waiter
list */
+ /* FIXME: Merge this with the NpfsFindListeningServerInstance
routine. */
+ NpfsSignalAndRemoveListeningServerInstance(Pipe, ServerFcb);
}
}
- else
+ else if (IsListEmpty(&Pipe->ServerFcbListHead))
{
- /* Signal the server thread and remove it from the waiter list */
- /* FIXME: Merge this with the NpfsFindListeningServerInstance
routine. */
- NpfsSignalAndRemoveListeningServerInstance(Pipe, ServerFcb);
+ DPRINT("No server fcb found!\n");
+ KeUnlockMutex(&Pipe->FcbListLock);
+ Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+ return STATUS_UNSUCCESSFUL;
}
/*
_____
Modified: trunk/reactos/lib/kernel32/file/npipe.c
--- trunk/reactos/lib/kernel32/file/npipe.c 2005-11-04 18:58:38 UTC
(rev 19001)
+++ trunk/reactos/lib/kernel32/file/npipe.c 2005-11-04 19:31:47 UTC
(rev 19002)
@@ -15,12 +15,6 @@
#define NDEBUG
#include "../include/debug.h"
-/* FIXME - defined in ntifs.h */
-#if !defined(FILE_PIPE_BYTE_STREAM_TYPE) &&
!defined(FILE_PIPE_MESSAGE_TYPE)
-#define FILE_PIPE_BYTE_STREAM_TYPE 0x00000000
-#define FILE_PIPE_MESSAGE_TYPE 0x00000001
-#endif
-
/* FUNCTIONS
****************************************************************/
/*
@@ -78,6 +72,7 @@
HANDLE PipeHandle;
ACCESS_MASK DesiredAccess;
ULONG CreateOptions;
+ ULONG CreateDisposition;
ULONG WriteModeMessage;
ULONG ReadModeMessage;
ULONG NonBlocking;
@@ -85,12 +80,6 @@
ULONG ShareAccess, Attributes;
LARGE_INTEGER DefaultTimeOut;
PSECURITY_DESCRIPTOR SecurityDescriptor = NULL;
-
- if (nMaxInstances == 0 || nMaxInstances > PIPE_UNLIMITED_INSTANCES)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return INVALID_HANDLE_VALUE;
- }
Result = RtlDosPathNameToNtPathName_U((LPWSTR)lpName,
&NamedPipeName,
@@ -119,41 +108,78 @@
NULL,
SecurityDescriptor);
- DesiredAccess = SYNCHRONIZE | (dwOpenMode & (WRITE_DAC | WRITE_OWNER
| ACCESS_SYSTEM_SECURITY));
+ DesiredAccess = 0;
ShareAccess = 0;
+ CreateDisposition = FILE_OPEN_IF;
CreateOptions = 0;
-
if (dwOpenMode & FILE_FLAG_WRITE_THROUGH)
- CreateOptions |= FILE_WRITE_THROUGH;
+ {
+ CreateOptions = CreateOptions | FILE_WRITE_THROUGH;
+ }
if (!(dwOpenMode & FILE_FLAG_OVERLAPPED))
- CreateOptions |= FILE_SYNCHRONOUS_IO_NONALERT;
+ {
+ CreateOptions = CreateOptions | FILE_SYNCHRONOUS_IO_NONALERT;
+ }
+ if (dwOpenMode & PIPE_ACCESS_DUPLEX)
+ {
+ CreateOptions = CreateOptions | FILE_PIPE_FULL_DUPLEX;
+ DesiredAccess |= (FILE_GENERIC_READ | FILE_GENERIC_WRITE);
+ }
+ else if (dwOpenMode & PIPE_ACCESS_INBOUND)
+ {
+ CreateOptions = CreateOptions | FILE_PIPE_INBOUND;
+ DesiredAccess |= FILE_GENERIC_READ;
+ }
+ else if (dwOpenMode & PIPE_ACCESS_OUTBOUND)
+ {
+ CreateOptions = CreateOptions | FILE_PIPE_OUTBOUND;
+ DesiredAccess |= FILE_GENERIC_WRITE;
+ }
- if (dwOpenMode & PIPE_ACCESS_INBOUND)
+ if (dwPipeMode & PIPE_TYPE_BYTE)
{
- ShareAccess |= FILE_SHARE_WRITE;
- DesiredAccess |= GENERIC_READ;
+ WriteModeMessage = FILE_PIPE_BYTE_STREAM_MODE;
}
- if (dwOpenMode & PIPE_ACCESS_OUTBOUND)
+ else if (dwPipeMode & PIPE_TYPE_MESSAGE)
{
- ShareAccess |= FILE_SHARE_READ;
- DesiredAccess |= GENERIC_WRITE;
+ WriteModeMessage = FILE_PIPE_MESSAGE_MODE;
}
-
- if (dwPipeMode & PIPE_TYPE_MESSAGE)
- WriteModeMessage = FILE_PIPE_MESSAGE_TYPE;
else
- WriteModeMessage = FILE_PIPE_BYTE_STREAM_TYPE;
+ {
+ WriteModeMessage = FILE_PIPE_BYTE_STREAM_MODE;
+ }
- if (dwPipeMode & PIPE_READMODE_MESSAGE)
- ReadModeMessage = FILE_PIPE_MESSAGE_MODE;
+ if (dwPipeMode & PIPE_READMODE_BYTE)
+ {
+ ReadModeMessage = FILE_PIPE_BYTE_STREAM_MODE;
+ }
+ else if (dwPipeMode & PIPE_READMODE_MESSAGE)
+ {
+ ReadModeMessage = FILE_PIPE_MESSAGE_MODE;
+ }
else
- ReadModeMessage = FILE_PIPE_BYTE_STREAM_MODE;
+ {
+ ReadModeMessage = FILE_PIPE_BYTE_STREAM_MODE;
+ }
- if (dwPipeMode & PIPE_NOWAIT)
- NonBlocking = FILE_PIPE_COMPLETE_OPERATION;
+ if (dwPipeMode & PIPE_WAIT)
+ {
+ NonBlocking = FILE_PIPE_QUEUE_OPERATION;
+ }
+ else if (dwPipeMode & PIPE_NOWAIT)
+ {
+ NonBlocking = FILE_PIPE_COMPLETE_OPERATION;
+ }
else
- NonBlocking = FILE_PIPE_QUEUE_OPERATION;
+ {
+ NonBlocking = FILE_PIPE_QUEUE_OPERATION;
+ }
+ if (nMaxInstances >= PIPE_UNLIMITED_INSTANCES)
+ {
+ nMaxInstances = 0xFFFFFFFF;
+ }
+
DefaultTimeOut.QuadPart = nDefaultTimeOut * -10000LL;
Status = NtCreateNamedPipeFile(&PipeHandle,
@@ -161,7 +187,7 @@
&ObjectAttributes,
&Iosb,
ShareAccess,
- FILE_OPEN_IF,
+ CreateDisposition,
CreateOptions,
WriteModeMessage,
ReadModeMessage,
_____
Modified: trunk/reactos/lib/kernel32/file/pipe.c
--- trunk/reactos/lib/kernel32/file/pipe.c 2005-11-04 18:58:38 UTC
(rev 19001)
+++ trunk/reactos/lib/kernel32/file/pipe.c 2005-11-04 19:31:47 UTC
(rev 19002)
@@ -59,9 +59,6 @@
Attributes |= OBJ_INHERIT;
}
- /* use default buffer size if desired */
- if (nSize == 0) nSize = 0x1000;
-
InitializeObjectAttributes(&ObjectAttributes,
&PipeName,
Attributes,
@@ -69,7 +66,7 @@
SecurityDescriptor);
Status = NtCreateNamedPipeFile(&ReadPipeHandle,
- FILE_GENERIC_READ |
FILE_WRITE_ATTRIBUTES | SYNCHRONIZE,
+ FILE_GENERIC_READ,
&ObjectAttributes,
&StatusBlock,
FILE_SHARE_READ | FILE_SHARE_WRITE,
@@ -89,10 +86,10 @@
}
Status = NtOpenFile(&WritePipeHandle,
- FILE_GENERIC_WRITE | SYNCHRONIZE,
+ FILE_GENERIC_WRITE,
&ObjectAttributes,
&StatusBlock,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
+ 0,
FILE_SYNCHRONOUS_IO_NONALERT |
FILE_NON_DIRECTORY_FILE);
if (!NT_SUCCESS(Status))
{
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