ntoskrnl/lpc/create.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/lpc/create.c
   6  * PURPOSE:         Communication mechanism
   7  * PROGRAMMER:      David Welch (welch@cwcom.net)
   8  * UPDATE HISTORY:
   9  *                  Created 22/05/98
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15 #include <internal/port.h>
  16 #include <internal/dbg.h>
  17
  18 #define NDEBUG
  19 #include <internal/debug.h>
  20
  21 STATIC NTSTATUS STDCALL
  22 VerifyCreateParameters (IN      PHANDLE                 PortHandle,
  23                         IN      POBJECT_ATTRIBUTES      ObjectAttributes,
  24                         IN      ULONG                   MaxConnectInfoLength,
  25                         IN      ULONG                   MaxDataLength,
  26                         IN      ULONG                   Reserved)
  27 {
  28   if (NULL == PortHandle)
  29     {
  30       return (STATUS_INVALID_PARAMETER_1);
  31     }
  32   if (NULL == ObjectAttributes)
  33     {
  34       return (STATUS_INVALID_PARAMETER_2);
  35     }
  36   if ((ObjectAttributes->Attributes    & OBJ_OPENLINK)
  37       || (ObjectAttributes->Attributes & OBJ_OPENIF)
  38       || (ObjectAttributes->Attributes & OBJ_EXCLUSIVE)
  39       || (ObjectAttributes->Attributes & OBJ_PERMANENT)
  40       || (ObjectAttributes->Attributes & OBJ_INHERIT))
  41   {
  42     return (STATUS_INVALID_PORT_ATTRIBUTES);
  43   }
  44   if (MaxConnectInfoLength > 0x104) /* FIXME: use a macro! */
  45     {
  46       return (STATUS_INVALID_PARAMETER_3);
  47     }
  48   if (MaxDataLength > 0x148) /* FIXME: use a macro! */
  49     {
  50       return (STATUS_INVALID_PARAMETER_4);
  51     }
  52   /* FIXME: some checking is done also on Reserved */
  53   return (STATUS_SUCCESS);
  54 }
  55
  56
  57 NTSTATUS STDCALL
  58 NiCreatePort (PVOID                     ObjectBody,
  59               PVOID                     Parent,
  60               PWSTR                     RemainingPath,
  61               POBJECT_ATTRIBUTES        ObjectAttributes)
  62 {
  63   if (RemainingPath == NULL)
  64     {
  65       return (STATUS_SUCCESS);
  66     }
  67
  68   if (wcschr(RemainingPath+1, '\\') != NULL)
  69     {
  70       return (STATUS_UNSUCCESSFUL);
  71     }
  72
  73   return (STATUS_SUCCESS);
  74 }
  75
  76
  77 /**********************************************************************
  78  * NAME                                                 EXPORTED
  79  *      NtCreatePort@20
  80  *
  81  * DESCRIPTION
  82  *
  83  * ARGUMENTS
  84  *      PortHandle,
  85  *      ObjectAttributes,
  86  *      MaxConnectInfoLength,
  87  *      MaxDataLength,
  88  *      Reserved
  89  *
  90  * RETURN VALUE
  91  *
  92  */
  93 EXPORTED NTSTATUS STDCALL
  94 NtCreatePort (PHANDLE                 PortHandle,
  95               POBJECT_ATTRIBUTES    ObjectAttributes,
  96               ULONG            MaxConnectInfoLength,
  97               ULONG                     MaxDataLength,
  98               ULONG                     Reserved)
  99 {
 100   PEPORT                Port;
 101   NTSTATUS      Status;
 102
 103   DPRINT("NtCreatePort() Name %x\n", ObjectAttributes->ObjectName->Buffer);
 104
 105   /* Verify parameters */
 106   Status = VerifyCreateParameters (PortHandle,
 107                                    ObjectAttributes,
 108                                    MaxConnectInfoLength,
 109                                    MaxDataLength,
 110                                    Reserved);
 111   if (!NT_SUCCESS(Status))
 112     {
 113       return (Status);
 114     }
 115   /* Ask Ob to create the object */
 116   Status = ObCreateObject (PortHandle,
 117                            PORT_ALL_ACCESS,
 118                            ObjectAttributes,
 119                            ExPortType,
 120                            (PVOID*)&Port);
 121   if (!NT_SUCCESS(Status))
 122     {
 123       return (Status);
 124     }
 125
 126   Status = NiInitializePort (Port);
 127   Port->MaxConnectInfoLength = 260; /* FIXME: use a macro! */
 128   Port->MaxDataLength = 328; /* FIXME: use a macro! */
 129
 130   ObDereferenceObject (Port);
 131
 132   return (Status);
 133 }
 134
 135 /**********************************************************************
 136  * NAME                                                 EXPORTED
 137  *      NtCreateWaitablePort@20
 138  *
 139  * DESCRIPTION
 140  *      Waitable ports can be connected to with NtSecureConnectPort.
 141  *      No port interface can be used with waitable ports but
 142  *      NtReplyWaitReceivePort and NtReplyWaitReceivePortEx.
 143  *      Present only in w2k+.
 144  *
 145  * ARGUMENTS
 146  *      PortHandle,
 147  *      ObjectAttributes,
 148  *      MaxConnectInfoLength,
 149  *      MaxDataLength,
 150  *      Reserved
 151  *
 152  * RETURN VALUE
 153  *
 154  */
 155 EXPORTED NTSTATUS STDCALL
 156 NtCreateWaitablePort (OUT       PHANDLE                 PortHandle,
 157                       IN        POBJECT_ATTRIBUTES      ObjectAttributes,
 158                       IN        ULONG                   MaxConnectInfoLength,
 159                       IN        ULONG                   MaxDataLength,
 160                       IN        ULONG                   Reserved)
 161 {
 162   NTSTATUS Status;
 163
 164   /* Verify parameters */
 165   Status = VerifyCreateParameters (PortHandle,
 166                                    ObjectAttributes,
 167                                    MaxConnectInfoLength,
 168                                    MaxDataLength,
 169                                    Reserved);
 170   if (STATUS_SUCCESS != Status)
 171     {
 172       return (Status);
 173     }
 174   /* TODO */
 175   return (STATUS_NOT_IMPLEMENTED);
 176 }
 177
 178 /* EOF */