C++ (Cpp) EFI_PXE_BASE_CODE_PROTOCOL::Start示例

示例#1

文件： EblNetworkLib.c 项目： B-Rich/edk2

EFI_STATUS
EFIAPI
EblPerformDHCP (
  IN  BOOLEAN  SortOffers
  )
{
  EFI_STATUS                  Status;
  EFI_PXE_BASE_CODE_PROTOCOL  *Pxe;
  
  Status = gBS->LocateProtocol (&gEfiPxeBaseCodeProtocolGuid, NULL, (VOID **)&Pxe);
  if (EFI_ERROR(Status)) {
    return Status;
  }

  Status = Pxe->Start (Pxe, gUseIpv6);
  if (EFI_ERROR(Status) && (Status != EFI_ALREADY_STARTED)) {
    return Status;
  }

  Status = Pxe->Dhcp(Pxe, TRUE);
  return Status;
}

示例#2

文件： EblNetworkLib.c 项目： B-Rich/edk2

EFI_STATUS
EFIAPI
EblGetCurrentIpAddress (
  IN OUT   EFI_IP_ADDRESS *Ip
  )
{
  EFI_STATUS                  Status;
  EFI_PXE_BASE_CODE_PROTOCOL  *Pxe;
  
  Status = gBS->LocateProtocol (&gEfiPxeBaseCodeProtocolGuid, NULL, (VOID **)&Pxe);
  if (EFI_ERROR(Status)) {
    return Status;
  }

  Status = Pxe->Start (Pxe, gUseIpv6);
  if (EFI_ERROR(Status) && (Status != EFI_ALREADY_STARTED)) {
    return Status;
  }

  CopyMem (Ip, &Pxe->Mode->StationIp, sizeof (EFI_IP_ADDRESS));

  return EFI_SUCCESS;
}

示例#3

EFI_STATUS
BdsTftpLoadImage (
    IN     EFI_DEVICE_PATH*       DevicePath,
    IN     EFI_HANDLE             Handle,
    IN     EFI_DEVICE_PATH*       RemainingDevicePath,
    IN     EFI_ALLOCATE_TYPE      Type,
    IN OUT EFI_PHYSICAL_ADDRESS   *Image,
    OUT    UINTN                  *ImageSize
)
{
    EFI_STATUS                  Status;
    EFI_PXE_BASE_CODE_PROTOCOL  *Pxe;
    UINT64                      TftpBufferSize;
    VOID*                       TftpBuffer;
    EFI_IP_ADDRESS              ServerIp;
    IPv4_DEVICE_PATH*           IPv4DevicePathNode;
    FILEPATH_DEVICE_PATH*       FilePathDevicePath;
    EFI_IP_ADDRESS              LocalIp;

    ASSERT(IS_DEVICE_PATH_NODE(RemainingDevicePath,MESSAGING_DEVICE_PATH,MSG_IPv4_DP));

    IPv4DevicePathNode = (IPv4_DEVICE_PATH*)RemainingDevicePath;
    FilePathDevicePath = (FILEPATH_DEVICE_PATH*)(IPv4DevicePathNode + 1);

    Status = gBS->LocateProtocol (&gEfiPxeBaseCodeProtocolGuid, NULL, (VOID **)&Pxe);
    if (EFI_ERROR(Status)) {
        return Status;
    }

    Status = Pxe->Start (Pxe, FALSE);
    if (EFI_ERROR(Status) && (Status != EFI_ALREADY_STARTED)) {
        return Status;
    }

    if (!IPv4DevicePathNode->StaticIpAddress) {
        Status = Pxe->Dhcp(Pxe, TRUE);
    } else {
        CopyMem (&LocalIp.v4, &IPv4DevicePathNode->LocalIpAddress, sizeof (EFI_IPv4_ADDRESS));
        Status = Pxe->SetStationIp (Pxe, &LocalIp, NULL);
    }
    if (EFI_ERROR(Status)) {
        return Status;
    }

    CopyMem (&ServerIp.v4, &IPv4DevicePathNode->RemoteIpAddress, sizeof (EFI_IPv4_ADDRESS));

    Status = Pxe->Mtftp (
                 Pxe,
                 EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE,
                 NULL,
                 FALSE,
                 &TftpBufferSize,
                 NULL,
                 &ServerIp,
                 (UINT8 *)FilePathDevicePath->PathName,
                 NULL,
                 TRUE
             );
    if (EFI_ERROR(Status)) {
        return Status;
    }

    // Allocate a buffer to hold the whole file.
    TftpBuffer = AllocatePool(TftpBufferSize);
    if (TftpBuffer == NULL) {
        return EFI_OUT_OF_RESOURCES;
    }

    Status = Pxe->Mtftp (
                 Pxe,
                 EFI_PXE_BASE_CODE_TFTP_READ_FILE,
                 TftpBuffer,
                 FALSE,
                 &TftpBufferSize,
                 NULL,
                 &ServerIp,
                 (UINT8 *)FilePathDevicePath->PathName,
                 NULL,
                 FALSE
             );
    if (EFI_ERROR(Status)) {
        FreePool(TftpBuffer);
    } else if (ImageSize != NULL) {
        *ImageSize = (UINTN)TftpBufferSize;
    }

    return Status;
}