reactos/ntoskrnl/lpc/ntlpc/port.c

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * FILE:            ntoskrnl/lpc/port.c
   5  * PURPOSE:         Local Procedure Call: Port Management
   6  * PROGRAMMERS:     Alex Ionescu (alex.ionescu@reactos.org)
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include <ntoskrnl.h>
  12 #include "lpc.h"
  13 #define NDEBUG
  14 #include <internal/debug.h>
  15
  16 /* GLOBALS *******************************************************************/
  17
  18 POBJECT_TYPE LpcPortObjectType;
  19 ULONG LpcpMaxMessageSize;
  20 PAGED_LOOKASIDE_LIST LpcpMessagesLookaside;
  21 KGUARDED_MUTEX LpcpLock;
  22 ULONG LpcpTraceLevel = LPC_CLOSE_DEBUG;
  23 ULONG LpcpNextMessageId = 1, LpcpNextCallbackId = 1;
  24
  25 static GENERIC_MAPPING LpcpPortMapping =
  26 {
  27     STANDARD_RIGHTS_READ,
  28     STANDARD_RIGHTS_WRITE,
  29     0,
  30     PORT_ALL_ACCESS
  31 };
  32
  33 /* PRIVATE FUNCTIONS *********************************************************/
  34
  35 NTSTATUS
  36 INIT_FUNCTION
  37 NTAPI
  38 LpcpInitSystem(VOID)
  39 {
  40     OBJECT_TYPE_INITIALIZER ObjectTypeInitializer;
  41     UNICODE_STRING Name;
  42
  43     /* Setup the LPC Lock */
  44     KeInitializeGuardedMutex(&LpcpLock);
  45
  46     /* Create the Port Object Type */
  47     RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
  48     RtlInitUnicodeString(&Name, L"Port");
  49     ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
  50     ObjectTypeInitializer.DefaultNonPagedPoolCharge = sizeof(LPCP_PORT_OBJECT);
  51     ObjectTypeInitializer.DefaultPagedPoolCharge = sizeof(LPCP_NONPAGED_PORT_QUEUE);
  52     ObjectTypeInitializer.GenericMapping = LpcpPortMapping;
  53     ObjectTypeInitializer.PoolType = PagedPool;
  54     ObjectTypeInitializer.UseDefaultObject = TRUE;
  55     ObjectTypeInitializer.CloseProcedure = LpcpClosePort;
  56     ObjectTypeInitializer.DeleteProcedure = LpcpDeletePort;
  57     ObjectTypeInitializer.ValidAccessMask = PORT_ALL_ACCESS;
  58     ObjectTypeInitializer.MaintainTypeList = TRUE;
  59     ObCreateObjectType(&Name,
  60                        &ObjectTypeInitializer,
  61                        NULL,
  62                        &LpcPortObjectType);
  63
  64     /* Allocate the LPC lookaside list */
  65     LpcpMaxMessageSize = LPCP_MAX_MESSAGE_SIZE;
  66     ExInitializePagedLookasideList(&LpcpMessagesLookaside,
  67                                    NULL,
  68                                    NULL,
  69                                    0,
  70                                    LpcpMaxMessageSize,
  71                                    TAG('L', 'p', 'c', 'M'),
  72                                    32);
  73
  74     /* We're done */
  75     return STATUS_SUCCESS;
  76 }
  77
  78 /* PUBLIC FUNCTIONS **********************************************************/
  79
  80 NTSTATUS
  81 NTAPI
  82 NtImpersonateClientOfPort(IN HANDLE PortHandle,
  83                           IN PPORT_MESSAGE ClientMessage)
  84 {
  85     UNIMPLEMENTED;
  86     return STATUS_NOT_IMPLEMENTED;
  87 }
  88
  89 NTSTATUS
  90 NTAPI
  91 NtQueryPortInformationProcess(VOID)
  92 {
  93     /* This is all this function does */
  94     return STATUS_UNSUCCESSFUL;
  95 }
  96
  97 NTSTATUS
  98 NTAPI
  99 NtQueryInformationPort(IN HANDLE PortHandle,
 100                        IN PORT_INFORMATION_CLASS PortInformationClass,
 101                        OUT PVOID PortInformation,
 102                        IN ULONG PortInformationLength,
 103                        OUT PULONG ReturnLength)
 104 {
 105     UNIMPLEMENTED;
 106     return STATUS_NOT_IMPLEMENTED;
 107 }
 108
 109 /* EOF */