drivers/network/afd/afd/bind.c

   1 /* $Id$
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS kernel
   4  * FILE:             drivers/net/afd/afd/bind.c
   5  * PURPOSE:          Ancillary functions driver
   6  * PROGRAMMER:       Art Yerkes (ayerkes@speakeasy.net)
   7  * UPDATE HISTORY:
   8  * 20040708 Created
   9  */
  10
  11 #include "afd.h"
  12 #include "tdi_proto.h"
  13 #include "tdiconn.h"
  14 #include "debug.h"
  15
  16 NTSTATUS WarmSocketForBind( PAFD_FCB FCB ) {
  17     NTSTATUS Status;
  18
  19     AFD_DbgPrint(MID_TRACE,("Called (AF %d)\n",
  20                             FCB->LocalAddress->Address[0].AddressType));
  21
  22     if( !FCB->TdiDeviceName.Length || !FCB->TdiDeviceName.Buffer ) {
  23         AFD_DbgPrint(MID_TRACE,("Null Device\n"));
  24         return STATUS_NO_SUCH_DEVICE;
  25     }
  26     if( !FCB->LocalAddress ) {
  27         AFD_DbgPrint(MID_TRACE,("No local address\n"));
  28         return STATUS_INVALID_PARAMETER;
  29     }
  30
  31     Status = TdiOpenAddressFile(&FCB->TdiDeviceName,
  32                                 FCB->LocalAddress,
  33                                 &FCB->AddressFile.Handle,
  34                                 &FCB->AddressFile.Object );
  35
  36     AFD_DbgPrint(MID_TRACE,("Returning %x\n", Status));
  37
  38     return Status;
  39 }
  40
  41 NTSTATUS NTAPI
  42 AfdBindSocket(PDEVICE_OBJECT DeviceObject, PIRP Irp,
  43               PIO_STACK_LOCATION IrpSp) {
  44     NTSTATUS Status = STATUS_SUCCESS;
  45     PFILE_OBJECT FileObject = IrpSp->FileObject;
  46     PAFD_FCB FCB = FileObject->FsContext;
  47     PAFD_BIND_DATA BindReq;
  48
  49     AFD_DbgPrint(MID_TRACE,("Called\n"));
  50
  51     if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp );
  52     if( !(BindReq = LockRequest( Irp, IrpSp )) )
  53         return UnlockAndMaybeComplete( FCB, STATUS_NO_MEMORY,
  54                                        Irp, 0 );
  55
  56     if( FCB->LocalAddress ) ExFreePool( FCB->LocalAddress );
  57     FCB->LocalAddress = TaCopyTransportAddress( &BindReq->Address );
  58
  59     if( FCB->LocalAddress )
  60         TdiBuildConnectionInfo( &FCB->AddressFrom,
  61                                 FCB->LocalAddress );
  62
  63     if( FCB->AddressFrom )
  64         Status = WarmSocketForBind( FCB );
  65     else return UnlockAndMaybeComplete(FCB, STATUS_NO_MEMORY, Irp, 0);
  66
  67     AFD_DbgPrint(MID_TRACE,("FCB->Flags %x\n", FCB->Flags));
  68
  69     if( FCB->Flags & AFD_ENDPOINT_CONNECTIONLESS ) {
  70         AFD_DbgPrint(MID_TRACE,("Calling TdiReceiveDatagram\n"));
  71
  72         FCB->Recv.Window = ExAllocatePool(PagedPool, FCB->Recv.Size);
  73         if (!FCB->Recv.Window)
  74             return UnlockAndMaybeComplete(FCB, STATUS_NO_MEMORY, Irp, 0);
  75
  76         Status = TdiReceiveDatagram
  77             ( &FCB->ReceiveIrp.InFlightRequest,
  78               FCB->AddressFile.Object,
  79               0,
  80               FCB->Recv.Window,
  81               FCB->Recv.Size,
  82               FCB->AddressFrom,
  83               &FCB->ReceiveIrp.Iosb,
  84               PacketSocketRecvComplete,
  85               FCB );
  86
  87         /* We don't want to wait for this read to complete. */
  88         if( Status == STATUS_PENDING ) Status = STATUS_SUCCESS;
  89     }
  90
  91     if (NT_SUCCESS(Status))
  92         FCB->State = SOCKET_STATE_BOUND;
  93
  94     return UnlockAndMaybeComplete( FCB, Status, Irp, 0 );
  95 }
  96