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 #define NTOS_MODE_KERNEL
  15 #include <ntos.h>
  16 #include <internal/port.h>
  17 #include <internal/dbg.h>
  18
  19 #define NDEBUG
  20 #include <internal/debug.h>
  21
  22 STATIC NTSTATUS STDCALL
  23 VerifyCreateParameters (IN      PHANDLE                 PortHandle,
  24                         IN      POBJECT_ATTRIBUTES      ObjectAttributes,
  25                         IN      ULONG                   MaxConnectInfoLength,
  26                         IN      ULONG                   MaxDataLength,
  27                         IN      ULONG                   Reserved)
  28 {
  29   if (NULL == PortHandle)
  30     {
  31       return (STATUS_INVALID_PARAMETER_1);
  32     }
  33   if (NULL == ObjectAttributes)
  34     {
  35       return (STATUS_INVALID_PARAMETER_2);
  36     }
  37   if ((ObjectAttributes->Attributes    & OBJ_OPENLINK)
  38       || (ObjectAttributes->Attributes & OBJ_OPENIF)
  39       || (ObjectAttributes->Attributes & OBJ_EXCLUSIVE)
  40       || (ObjectAttributes->Attributes & OBJ_PERMANENT)
  41       || (ObjectAttributes->Attributes & OBJ_INHERIT))
  42   {
  43     return (STATUS_INVALID_PORT_ATTRIBUTES);
  44   }
  45   if (MaxConnectInfoLength > 0x104) /* FIXME: use a macro! */
  46     {
  47       return (STATUS_INVALID_PARAMETER_3);
  48     }
  49   if (MaxDataLength > 0x148) /* FIXME: use a macro! */
  50     {
  51       return (STATUS_INVALID_PARAMETER_4);
  52     }
  53   /* FIXME: some checking is done also on Reserved */
  54   return (STATUS_SUCCESS);
  55 }
  56
  57
  58 NTSTATUS STDCALL
  59 NiCreatePort (PVOID                     ObjectBody,
  60               PVOID                     Parent,
  61               PWSTR                     RemainingPath,
  62               POBJECT_ATTRIBUTES        ObjectAttributes)
  63 {
  64   if (RemainingPath == NULL)
  65     {
  66       return (STATUS_SUCCESS);
  67     }
  68
  69   if (wcschr(RemainingPath+1, '\\') != NULL)
  70     {
  71       return (STATUS_UNSUCCESSFUL);
  72     }
  73
  74   return (STATUS_SUCCESS);
  75 }
  76
  77
  78 /**********************************************************************
  79  * NAME                                                 EXPORTED
  80  *      NtCreatePort@20
  81  *
  82  * DESCRIPTION
  83  *
  84  * ARGUMENTS
  85  *      PortHandle,
  86  *      ObjectAttributes,
  87  *      MaxConnectInfoLength,
  88  *      MaxDataLength,
  89  *      Reserved
  90  *
  91  * RETURN VALUE
  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 = ObRosCreateObject (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 EXPORTED NTSTATUS STDCALL
 155 NtCreateWaitablePort (OUT       PHANDLE                 PortHandle,
 156                       IN        POBJECT_ATTRIBUTES      ObjectAttributes,
 157                       IN        ULONG                   MaxConnectInfoLength,
 158                       IN        ULONG                   MaxDataLength,
 159                       IN        ULONG                   Reserved)
 160 {
 161   NTSTATUS Status;
 162
 163   /* Verify parameters */
 164   Status = VerifyCreateParameters (PortHandle,
 165                                    ObjectAttributes,
 166                                    MaxConnectInfoLength,
 167                                    MaxDataLength,
 168                                    Reserved);
 169   if (STATUS_SUCCESS != Status)
 170     {
 171       return (Status);
 172     }
 173   /* TODO */
 174   return (STATUS_NOT_IMPLEMENTED);
 175 }
 176
 177 /* EOF */