reactos/ntoskrnl/lpc/port.c

   1 /* $Id: port.c,v 1.4 2001/01/28 17:38:12 ekohl Exp $
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/lpc/port.c
   6  * PURPOSE:         Communication mechanism
   7  * PROGRAMMER:      David Welch (welch@cwcom.net)
   8  * UPDATE HISTORY:
   9  *                  Created 22/05/98
  10  *
  11  *      2000-06-04 (ea)
  12  *              ntoskrnl/nt/port.c moved in ntoskrnl/lpc/port.c
  13  */
  14
  15 /* INCLUDES *****************************************************************/
  16
  17 #include <limits.h>
  18
  19 #include <ddk/ntddk.h>
  20 #include <internal/ob.h>
  21 #include <internal/port.h>
  22 #include <internal/dbg.h>
  23
  24 #define NDEBUG
  25 #include <internal/debug.h>
  26
  27
  28 /* GLOBALS *******************************************************************/
  29
  30 POBJECT_TYPE    ExPortType = NULL;
  31 ULONG           EiNextLpcMessageId = 0;
  32
  33 static GENERIC_MAPPING ExpPortMapping = {
  34         STANDARD_RIGHTS_READ,
  35         STANDARD_RIGHTS_WRITE,
  36         0,
  37         PORT_ALL_ACCESS};
  38
  39 /* FUNCTIONS *****************************************************************/
  40
  41
  42 NTSTATUS NiInitPort (VOID)
  43 {
  44    ExPortType = ExAllocatePool(NonPagedPool,sizeof(OBJECT_TYPE));
  45
  46    RtlInitUnicodeString(&ExPortType->TypeName,L"Port");
  47
  48    ExPortType->MaxObjects = ULONG_MAX;
  49    ExPortType->MaxHandles = ULONG_MAX;
  50    ExPortType->TotalObjects = 0;
  51    ExPortType->TotalHandles = 0;
  52    ExPortType->PagedPoolCharge = 0;
  53    ExPortType->NonpagedPoolCharge = sizeof(EPORT);
  54    ExPortType->Mapping = &ExpPortMapping;
  55    ExPortType->Dump = NULL;
  56    ExPortType->Open = NULL;
  57    ExPortType->Close = NiClosePort;
  58    ExPortType->Delete = NiDeletePort;
  59    ExPortType->Parse = NULL;
  60    ExPortType->Security = NULL;
  61    ExPortType->QueryName = NULL;
  62    ExPortType->OkayToClose = NULL;
  63    ExPortType->Create = NiCreatePort;
  64
  65    EiNextLpcMessageId = 0;
  66
  67    return(STATUS_SUCCESS);
  68 }
  69
  70
  71 /**********************************************************************
  72  * NAME                                                 INTERNAL
  73  *      NiInitializePort
  74  *
  75  * DESCRIPTION
  76  *      Initialize the EPORT object attributes. The Port
  77  *      object enters the inactive state.
  78  *
  79  * ARGUMENTS
  80  *      Port    Pointer to an EPORT object to initialize.
  81  *
  82  * RETURN VALUE
  83  *      STATUS_SUCCESS if initialization succedeed. An error code
  84  *      otherwise.
  85  */
  86 NTSTATUS
  87 STDCALL
  88 NiInitializePort (
  89         IN OUT  PEPORT  Port
  90         )
  91 {
  92         memset (Port, 0, sizeof(EPORT));
  93         KeInitializeSpinLock (& Port->Lock);
  94         KeInitializeEvent (& Port->Event, SynchronizationEvent, FALSE);
  95         Port->OtherPort = NULL;
  96         Port->QueueLength = 0;
  97         Port->ConnectQueueLength = 0;
  98         Port->State = EPORT_INACTIVE;
  99         InitializeListHead (& Port->QueueListHead);
 100         InitializeListHead (& Port->ConnectQueueListHead);
 101
 102         return (STATUS_SUCCESS);
 103 }
 104
 105
 106 /* MISCELLANEA SYSTEM SERVICES */
 107
 108
 109 /**********************************************************************
 110  * NAME                                                 SYSTEM
 111  *      NtImpersonateClientOfPort@8
 112  *
 113  * DESCRIPTION
 114  *
 115  * ARGUMENTS
 116  *      PortHandle,
 117  *      ClientMessage
 118  *
 119  * RETURN VALUE
 120  *
 121  */
 122 NTSTATUS
 123 STDCALL
 124 NtImpersonateClientOfPort (
 125         HANDLE          PortHandle,
 126         PLPC_MESSAGE    ClientMessage
 127         )
 128 {
 129         UNIMPLEMENTED;
 130 }
 131
 132
 133
 134 /* EOF */