Exemplos de Mtftp4InitProtocol em C++ (Cpp)

Exemplo n.º 1

Arquivo: Mtftp4Driver.c Projeto: bhanug/virtualbox

/**
  Create a MTFTP child for the service binding instance, then
  install the MTFTP protocol to the ChildHandle.

  @param  This                   The MTFTP service binding instance.
  @param  ChildHandle            The Child handle to install the MTFTP protocol.

  @retval EFI_INVALID_PARAMETER  The parameter is invalid.
  @retval EFI_OUT_OF_RESOURCES   Failed to allocate resource for the new child.
  @retval EFI_SUCCESS            The child is successfully create.

**/
EFI_STATUS
EFIAPI
Mtftp4ServiceBindingCreateChild (
  IN EFI_SERVICE_BINDING_PROTOCOL  *This,
  IN EFI_HANDLE                *ChildHandle
  )
{
  MTFTP4_SERVICE            *MtftpSb;
  MTFTP4_PROTOCOL           *Instance;
  EFI_STATUS                Status;
  EFI_TPL                   OldTpl;
  VOID                      *Udp4;

  if ((This == NULL) || (ChildHandle == NULL)) {
    return EFI_INVALID_PARAMETER;
  }

  Instance = AllocatePool (sizeof (*Instance));

  if (Instance == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }

  MtftpSb = MTFTP4_SERVICE_FROM_THIS (This);

  Mtftp4InitProtocol (MtftpSb, Instance);

  Instance->UnicastPort = UdpIoCreateIo (
                            MtftpSb->Controller,
                            MtftpSb->Image,
                            Mtftp4ConfigNullUdp,
                            UDP_IO_UDP4_VERSION,
                            Instance
                            );

  if (Instance->UnicastPort == NULL) {
    FreePool (Instance);
    return EFI_OUT_OF_RESOURCES;
  }

  //
  // Install the MTFTP protocol onto ChildHandle
  //
  Status = gBS->InstallMultipleProtocolInterfaces (
                  ChildHandle,
                  &gEfiMtftp4ProtocolGuid,
                  &Instance->Mtftp4,
                  NULL
                  );

  if (EFI_ERROR (Status)) {
    UdpIoFreeIo (Instance->UnicastPort);
    FreePool (Instance);
    return Status;
  }

  Instance->Handle  = *ChildHandle;

  //
  // Open the Udp4 protocol BY_CHILD.
  //
  Status = gBS->OpenProtocol (
                  MtftpSb->ConnectUdp->UdpHandle,
                  &gEfiUdp4ProtocolGuid,
                  (VOID **) &Udp4,
                  gMtftp4DriverBinding.DriverBindingHandle,
                  Instance->Handle,
                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
                  );
  if (EFI_ERROR (Status)) {
    goto ON_ERROR;
  }

  //
  // Open the Udp4 protocol by child.
  //
  Status = gBS->OpenProtocol (
                  Instance->UnicastPort->UdpHandle,
                  &gEfiUdp4ProtocolGuid,
                  (VOID **) &Udp4,
                  gMtftp4DriverBinding.DriverBindingHandle,
                  Instance->Handle,
                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
                  );
  if (EFI_ERROR (Status)) {
    //
    // Close the Udp4 protocol.
    //
    gBS->CloseProtocol (
           MtftpSb->ConnectUdp->UdpHandle,
           &gEfiUdp4ProtocolGuid,
           gMtftp4DriverBinding.DriverBindingHandle,
           ChildHandle
           );
    goto ON_ERROR;
  }

  //
  // Add it to the parent's child list.
  //
  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);

  InsertTailList (&MtftpSb->Children, &Instance->Link);
  MtftpSb->ChildrenNum++;

  gBS->RestoreTPL (OldTpl);

  return EFI_SUCCESS;

ON_ERROR:
  if (Instance->Handle != NULL) {
    gBS->UninstallMultipleProtocolInterfaces (
           Instance->Handle,
           &gEfiMtftp4ProtocolGuid,
           &Instance->Mtftp4,
           NULL
           );
  }

  UdpIoFreeIo (Instance->UnicastPort);
  FreePool (Instance);

  return Status;
}

Exemplo n.º 2

Arquivo: Mtftp4Driver.c Projeto: Kohrara/edk

EFI_STATUS
Mtftp4ServiceBindingCreateChild (
  IN EFI_SERVICE_BINDING_PROTOCOL  *This,
  IN OUT EFI_HANDLE                *ChildHandle
  )
/*++

Routine Description:

  Create a MTFTP child for the service binding instance, then
  install the MTFTP protocol to the ChildHandle.

Arguments:

  This        - The MTFTP service binding instance.
  ChildHandle - The Child handle to install the MTFTP protocol.

Returns:

  EFI_INVALID_PARAMETER - The parameter is invalid.
  EFI_OUT_OF_RESOURCES  - Failed to allocate resource for the new child.
  EFI_SUCCESS           - The child is successfully create.

--*/
{
  MTFTP4_SERVICE            *MtftpSb;
  MTFTP4_PROTOCOL           *Instance;
  EFI_STATUS                Status;
  EFI_TPL                   OldTpl;
  VOID                      *Udp4;

  if ((This == NULL) || (ChildHandle == NULL)) {
    return EFI_INVALID_PARAMETER;
  }

  Instance = NetAllocatePool (sizeof (*Instance));

  if (Instance == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }

  MtftpSb = MTFTP4_SERVICE_FROM_THIS (This);
  
  Mtftp4InitProtocol (MtftpSb, Instance);

  Instance->UnicastPort = UdpIoCreatePort (
                            MtftpSb->Controller,
                            MtftpSb->Image,
                            Mtftp4ConfigNullUdp,
                            Instance
                            );

  if (Instance->UnicastPort == NULL) {
    NetFreePool (Instance);
    return EFI_OUT_OF_RESOURCES;
  }
  
  //
  // Install the MTFTP protocol onto ChildHandle
  //
  Status = gBS->InstallMultipleProtocolInterfaces (
                  ChildHandle,
                  &gEfiMtftp4ProtocolGuid,
                  &Instance->Mtftp4,
                  NULL
                  );

  if (EFI_ERROR (Status)) {
    goto ON_ERROR;
  }

  Instance->Handle  = *ChildHandle;

  //
  // Open the Udp4 protocol BY_CHILD.
  //
  Status = gBS->OpenProtocol (
                  MtftpSb->ConnectUdp->UdpHandle,
                  &gEfiUdp4ProtocolGuid,
                  (VOID **) &Udp4,
                  gMtftp4DriverBinding.DriverBindingHandle,
                  Instance->Handle,
                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
                  );
  if (EFI_ERROR (Status)) {
    gBS->UninstallMultipleProtocolInterfaces (
           Instance->Handle,
           &gEfiMtftp4ProtocolGuid,
           &Instance->Mtftp4,
           NULL
           );

    goto ON_ERROR;
  }

  //
  // Add it to the parent's child list.
  //
  OldTpl = NET_RAISE_TPL (NET_TPL_LOCK);

  NetListInsertTail (&MtftpSb->Children, &Instance->Link);
  MtftpSb->ChildrenNum++;

  NET_RESTORE_TPL (OldTpl);

ON_ERROR:

  if (EFI_ERROR (Status)) {
    UdpIoFreePort (Instance->UnicastPort);
    NetFreePool (Instance);
  }

  return Status;
}