subsysreg.c File Reference

#include "consrv.h"
#include <debug.h>

Include dependency graph for subsysreg.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
	CON_API (SrvRegisterConsoleVDM, CONSOLE_REGISTERVDM, RegisterVDMRequest)
	CSR_API (SrvVDMConsoleOperation)
	CSR_API (SrvRegisterConsoleOS2)
	CSR_API (SrvSetConsoleOS2OemFormat)
	CSR_API (SrvRegisterConsoleIME)
	CSR_API (SrvUnregisterConsoleIME)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 13 of file subsysreg.c.

Function Documentation

CON_API()

CON_API	(	SrvRegisterConsoleVDM	,
		CONSOLE_REGISTERVDM	,
		RegisterVDMRequest
	)

Definition at line 23 of file subsysreg.c.

{
    NTSTATUS Status;
 
    DPRINT1("SrvRegisterConsoleVDM(%d)\n", RegisterVDMRequest->RegisterFlags);
 
    if (RegisterVDMRequest->RegisterFlags != 0)
    {
        LARGE_INTEGER SectionSize;
        SIZE_T Size, ViewSize = 0;
        HANDLE ProcessHandle;
 
        /*
         * Remember the handle to the process so that we can close or unmap
         * correctly the allocated resources when the client releases the
         * screen buffer.
         */
        ProcessHandle = CsrGetClientThread()->Process->ProcessHandle;
        Console->VDMClientProcess = ProcessHandle;
 
        Console->VDMBufferSize = RegisterVDMRequest->VDMBufferSize;
 
        Size = Console->VDMBufferSize.X * Console->VDMBufferSize.Y
                                        * sizeof(CHAR_CELL);
 
        /*
         * Create a memory section for the VDM buffer, to share with the client.
         */
        SectionSize.QuadPart = Size;
        Status = NtCreateSection(&Console->VDMBufferSection,
                                 SECTION_ALL_ACCESS,
                                 NULL,
                                 &SectionSize,
                                 PAGE_READWRITE,
                                 SEC_COMMIT,
                                 NULL);
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("Error: Impossible to create a shared section, Status = 0x%08lx\n", Status);
            return Status;
        }
 
        /*
         * Create a view for our needs.
         */
        ViewSize = 0;
        Console->VDMBuffer = NULL;
        Status = NtMapViewOfSection(Console->VDMBufferSection,
                                    NtCurrentProcess(),
                                    (PVOID*)&Console->VDMBuffer,
                                    0,
                                    0,
                                    NULL,
                                    &ViewSize,
                                    ViewUnmap,
                                    0,
                                    PAGE_READWRITE);
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("Error: Impossible to map the shared section, Status = 0x%08lx\n", Status);
            NtClose(Console->VDMBufferSection);
            return Status;
        }
 
        /*
         * Create a view for the client. We must keep a trace of it so that
         * we can unmap it when the client releases the VDM buffer.
         */
        ViewSize = 0;
        Console->ClientVDMBuffer = NULL;
        Status = NtMapViewOfSection(Console->VDMBufferSection,
                                    ProcessHandle,
                                    (PVOID*)&Console->ClientVDMBuffer,
                                    0,
                                    0,
                                    NULL,
                                    &ViewSize,
                                    ViewUnmap,
                                    0,
                                    PAGE_READWRITE);
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("Error: Impossible to map the shared section, Status = 0x%08lx\n", Status);
            NtUnmapViewOfSection(NtCurrentProcess(), Console->VDMBuffer);
            NtClose(Console->VDMBufferSection);
            return Status;
        }
 
        // TODO: Duplicate the event handles.
 
        RegisterVDMRequest->VDMBuffer = Console->ClientVDMBuffer;
 
        return STATUS_SUCCESS;
    }
    else
    {
        /* RegisterFlags == 0 means we are unregistering the VDM */
 
        // TODO: Close the duplicated handles.
 
        if (Console->VDMBuffer)
        {
            /*
             * Uninitialize the graphics screen buffer
             * in the reverse way we initialized it.
             */
            NtUnmapViewOfSection(Console->VDMClientProcess, Console->ClientVDMBuffer);
            NtUnmapViewOfSection(NtCurrentProcess(), Console->VDMBuffer);
            NtClose(Console->VDMBufferSection);
        }
        Console->VDMBuffer = Console->ClientVDMBuffer = NULL;
 
        Console->VDMBufferSize.X = Console->VDMBufferSize.Y = 0;
 
        return STATUS_SUCCESS;
    }
}

CSR_API() [1/5]

CSR_API

(

SrvRegisterConsoleIME

)

Definition at line 174 of file subsysreg.c.

{
    DPRINT1("%s not yet implemented\n", __FUNCTION__);
    return STATUS_NOT_IMPLEMENTED;
}

CSR_API() [2/5]

CSR_API

(

SrvRegisterConsoleOS2

)

Definition at line 155 of file subsysreg.c.

{
    DPRINT1("%s not yet implemented\n", __FUNCTION__);
    return STATUS_NOT_IMPLEMENTED;
}

CSR_API() [3/5]

CSR_API

(

SrvSetConsoleOS2OemFormat

)

Definition at line 162 of file subsysreg.c.

{
    DPRINT1("%s not yet implemented\n", __FUNCTION__);
    return STATUS_NOT_IMPLEMENTED;
}

CSR_API() [4/5]

CSR_API

(

SrvUnregisterConsoleIME

)

Definition at line 181 of file subsysreg.c.

{
    DPRINT1("%s not yet implemented\n", __FUNCTION__);
    return STATUS_NOT_IMPLEMENTED;
}

CSR_API() [5/5]

CSR_API

(

SrvVDMConsoleOperation

)

Definition at line 143 of file subsysreg.c.

{
    DPRINT1("%s not yet implemented\n", __FUNCTION__);
    return STATUS_NOT_IMPLEMENTED;
}