[ros-diffs] [fireball] 42047: - Implement CSR interaction function - ReactOS specific!
fireball at svn.reactos.org
fireball at svn.reactos.org
Sat Jul 18 15:31:51 CEST 2009
Author: fireball
Date: Sat Jul 18 15:31:51 2009
New Revision: 42047
URL: http://svn.reactos.org/svn/reactos?rev=42047&view=rev
Log:
- Implement CSR interaction function - ReactOS specific!
Added:
branches/arwinss/reactos/subsystems/win32/win32k/main/csr.c (with props)
Added: branches/arwinss/reactos/subsystems/win32/win32k/main/csr.c
URL: http://svn.reactos.org/svn/reactos/branches/arwinss/reactos/subsystems/win32/win32k/main/csr.c?rev=42047&view=auto
==============================================================================
--- branches/arwinss/reactos/subsystems/win32/win32k/main/csr.c (added)
+++ branches/arwinss/reactos/subsystems/win32/win32k/main/csr.c [iso-8859-1] Sat Jul 18 15:31:51 2009
@@ -1,0 +1,209 @@
+/*
+ * COPYRIGHT: See COPYING in the top level directory
+ * PROJECT: ReactOS kernel
+ * PURPOSE: Interface to csrss. ROS SPECIFIC!
+ * FILE: subsys/win32k/ntuser/csr.c
+ * PROGRAMER: Parts are by Ge van Geldorp (ge at gse.nl)
+ */
+
+#include <win32k.h>
+#include <handle.h>
+
+//#define NDEBUG
+#include <debug.h>
+
+static HANDLE WindowsApiPort = NULL;
+PEPROCESS CsrProcess = NULL;
+
+VOID NTAPI
+RosUserConnectCsrss(void)
+{
+ NTSTATUS Status;
+ UNICODE_STRING PortName;
+ ULONG ConnectInfoLength;
+ SECURITY_QUALITY_OF_SERVICE Qos;
+
+ RtlInitUnicodeString(&PortName, L"\\Windows\\ApiPort");
+ ConnectInfoLength = 0;
+ Qos.Length = sizeof(Qos);
+ Qos.ImpersonationLevel = SecurityDelegation;
+ Qos.ContextTrackingMode = SECURITY_STATIC_TRACKING;
+ Qos.EffectiveOnly = FALSE;
+
+ Status = ZwConnectPort(&WindowsApiPort,
+ &PortName,
+ &Qos,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ &ConnectInfoLength);
+ if (! NT_SUCCESS(Status))
+ {
+ DPRINT1("There is a problem connecting to CSRSS, Status=0x%08x\n", Status);
+ SetLastNtError(Status);
+ }
+
+ CsrProcess = PsGetCurrentProcess();
+ DPRINT("Win32k registered with CSRSS\n");
+}
+
+
+NTSTATUS FASTCALL
+co_CsrNotify(PCSR_API_MESSAGE Request)
+{
+ NTSTATUS Status;
+ PEPROCESS OldProcess;
+
+ if (NULL == CsrProcess)
+ {
+ return STATUS_INVALID_PORT_HANDLE;
+ }
+
+ Request->Header.u2.ZeroInit = 0;
+ Request->Header.u1.s1.DataLength = sizeof(CSR_API_MESSAGE) - sizeof(PORT_MESSAGE);
+ Request->Header.u1.s1.TotalLength = sizeof(CSR_API_MESSAGE);
+
+ /* Switch to the process in which the WindowsApiPort handle is valid */
+ OldProcess = PsGetCurrentProcess();
+ if (CsrProcess != OldProcess)
+ {
+ KeAttachProcess(&CsrProcess->Pcb);
+ }
+
+ UserLeave();
+
+ Status = ZwRequestWaitReplyPort(WindowsApiPort,
+ &Request->Header,
+ &Request->Header);
+
+ UserEnterExclusive();
+
+ if (CsrProcess != OldProcess)
+ {
+ KeDetachProcess();
+ }
+
+ if (NT_SUCCESS(Status))
+ {
+ Status = Request->Status;
+ }
+
+ return Status;
+}
+
+
+NTSTATUS
+APIENTRY
+CsrInsertObject(HANDLE ObjectHandle,
+ ACCESS_MASK DesiredAccess,
+ PHANDLE Handle)
+{
+#ifdef WIN32K_USES_PROPER_OB
+ NTSTATUS Status;
+ HANDLE CsrProcessHandle;
+ OBJECT_ATTRIBUTES ObjectAttributes;
+ CLIENT_ID Cid;
+
+ /* Put CSR'S CID */
+ Cid.UniqueProcess = CsrProcess->UniqueProcessId;
+ Cid.UniqueThread = 0;
+
+ /* Empty Attributes */
+ InitializeObjectAttributes(&ObjectAttributes,
+ NULL,
+ 0,
+ NULL,
+ NULL);
+
+ /* Get a Handle to Csrss */
+ Status = ZwOpenProcess(&CsrProcessHandle,
+ PROCESS_DUP_HANDLE,
+ &ObjectAttributes,
+ &Cid);
+
+ if ((NT_SUCCESS(Status)))
+ {
+ /* Duplicate the Handle */
+ Status = ZwDuplicateObject(NtCurrentProcess(),
+ ObjectHandle,
+ CsrProcessHandle,
+ Handle,
+ DesiredAccess,
+ OBJ_INHERIT,
+ 0);
+
+ /* Close our handle to CSRSS */
+ ZwClose(CsrProcessHandle);
+ }
+
+ return Status;
+#else
+ /* No csrss - no luck */
+ if (!CsrProcess) return STATUS_UNSUCCESSFUL;
+
+ /* Duplicate the handle */
+ *Handle = (HANDLE)duplicate_handle(PsGetCurrentProcessWin32Process(),
+ (obj_handle_t)ObjectHandle, PsGetProcessWin32Process(CsrProcess), 0, 0, DUP_HANDLE_SAME_ACCESS);
+
+ return STATUS_SUCCESS;
+#endif
+}
+
+NTSTATUS FASTCALL
+CsrCloseHandle(HANDLE Handle)
+{
+ NTSTATUS Status;
+ PEPROCESS OldProcess;
+
+ /* Switch to the process in which the handle is valid */
+ OldProcess = PsGetCurrentProcess();
+ if (CsrProcess != OldProcess)
+ {
+ KeAttachProcess(&CsrProcess->Pcb);
+ }
+
+ Status = ZwClose(Handle);
+
+ if (CsrProcess != OldProcess)
+ {
+ KeDetachProcess();
+ }
+
+ return Status;
+}
+
+/* Below is a part written by me */
+NTSTATUS
+NTAPI
+CsrNotifyCreateDesktop(HDESK Desktop)
+{
+ CSR_API_MESSAGE Request;
+ NTSTATUS Status;
+
+ /* Create a handle for CSRSS and notify CSRSS */
+ Request.Type = MAKE_CSR_API(CREATE_DESKTOP, CSR_GUI);
+
+ /* Create a duplicate handle in csrss's process space */
+ Status = CsrInsertObject(Desktop,
+ GENERIC_ALL,
+ (HANDLE*)&Request.Data.CreateDesktopRequest.DesktopHandle);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Failed to create desktop handle for CSRSS\n");
+ return Status;
+ }
+
+ /* Notify CSRSS */
+ Status = co_CsrNotify(&Request);
+ if (!NT_SUCCESS(Status))
+ {
+ //CsrCloseHandle(Request.Data.CreateDesktopRequest.DesktopHandle);
+ DPRINT1("Failed to notify CSRSS about new desktop, Status 0x%08x\n", Status);
+ return Status;
+ }
+
+ return STATUS_SUCCESS;
+}
+
+/* EOF */
Propchange: branches/arwinss/reactos/subsystems/win32/win32k/main/csr.c
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svn:eol-style = native
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