NetworkPkg: Move Network library and drivers from MdeModulePkg to NetworkPkg
Signed-off-by: Liming Gao <liming.gao@intel.com> Cc: Siyuan Fu <siyuan.fu@intel.com> Cc: Jiaxin Wu <jiaxin.wu@intel.com> Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com> Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>
This commit is contained in:
Liming Gao
739
NetworkPkg/Mtftp4Dxe/Mtftp4Driver.c
Normal file
739
NetworkPkg/Mtftp4Dxe/Mtftp4Driver.c
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@@ -0,0 +1,739 @@
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/** @file
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Implementation of Mtftp drivers.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "Mtftp4Impl.h"
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EFI_DRIVER_BINDING_PROTOCOL gMtftp4DriverBinding = {
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Mtftp4DriverBindingSupported,
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Mtftp4DriverBindingStart,
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Mtftp4DriverBindingStop,
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0xa,
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NULL,
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NULL
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};
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EFI_SERVICE_BINDING_PROTOCOL gMtftp4ServiceBindingTemplete = {
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Mtftp4ServiceBindingCreateChild,
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Mtftp4ServiceBindingDestroyChild
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};
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/**
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The driver entry point which installs multiple protocols to the ImageHandle.
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@param ImageHandle The MTFTP's image handle.
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@param SystemTable The system table.
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@retval EFI_SUCCESS The handles are successfully installed on the image.
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@retval others some EFI_ERROR occured.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp4DriverEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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return EfiLibInstallDriverBindingComponentName2 (
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ImageHandle,
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SystemTable,
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&gMtftp4DriverBinding,
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ImageHandle,
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&gMtftp4ComponentName,
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&gMtftp4ComponentName2
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);
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}
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/**
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Test whether MTFTP driver support this controller.
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@param This The MTFTP driver binding instance
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@param Controller The controller to test
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@param RemainingDevicePath The remaining device path
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@retval EFI_SUCCESS The controller has UDP service binding protocol
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installed, MTFTP can support it.
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@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by
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the driver specified by This.
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@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by a
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different driver or an application that requires
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exclusive access.
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@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
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RemainingDevicePath is not supported by the driver
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specified by This.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp4DriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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{
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EFI_STATUS Status;
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Status = gBS->OpenProtocol (
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Controller,
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&gEfiUdp4ServiceBindingProtocolGuid,
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NULL,
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This->DriverBindingHandle,
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Controller,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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return Status;
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}
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/**
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Config a NULL UDP that is used to keep the connection between UDP and MTFTP.
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Just leave the Udp child unconfigured. When UDP is unloaded,
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MTFTP will be informed with DriverBinding Stop.
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@param UdpIo The UDP_IO to configure
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@param Context The opaque parameter to the callback
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@retval EFI_SUCCESS It always return EFI_SUCCESS directly.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp4ConfigNullUdp (
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IN UDP_IO *UdpIo,
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IN VOID *Context
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)
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{
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return EFI_SUCCESS;
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}
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/**
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Create then initialize a MTFTP service binding instance.
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@param Controller The controller to install the MTFTP service
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binding on
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@param Image The driver binding image of the MTFTP driver
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@param Service The variable to receive the created service
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binding instance.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate resource to create the instance
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@retval EFI_DEVICE_ERROR Failed to create a NULL UDP port to keep
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connection with UDP.
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@retval EFI_SUCCESS The service instance is created for the
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controller.
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**/
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EFI_STATUS
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Mtftp4CreateService (
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IN EFI_HANDLE Controller,
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IN EFI_HANDLE Image,
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OUT MTFTP4_SERVICE **Service
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)
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{
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MTFTP4_SERVICE *MtftpSb;
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EFI_STATUS Status;
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*Service = NULL;
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MtftpSb = AllocatePool (sizeof (MTFTP4_SERVICE));
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if (MtftpSb == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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MtftpSb->Signature = MTFTP4_SERVICE_SIGNATURE;
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MtftpSb->ServiceBinding = gMtftp4ServiceBindingTemplete;
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MtftpSb->ChildrenNum = 0;
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InitializeListHead (&MtftpSb->Children);
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MtftpSb->Timer = NULL;
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MtftpSb->TimerNotifyLevel = NULL;
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MtftpSb->TimerToGetMap = NULL;
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MtftpSb->Controller = Controller;
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MtftpSb->Image = Image;
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MtftpSb->ConnectUdp = NULL;
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//
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// Create the timer and a udp to be notified when UDP is uninstalled
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//
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL | EVT_TIMER,
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TPL_CALLBACK,
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Mtftp4OnTimerTick,
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MtftpSb,
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&MtftpSb->Timer
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);
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if (EFI_ERROR (Status)) {
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FreePool (MtftpSb);
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return Status;
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}
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL | EVT_TIMER,
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TPL_NOTIFY,
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Mtftp4OnTimerTickNotifyLevel,
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MtftpSb,
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&MtftpSb->TimerNotifyLevel
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);
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if (EFI_ERROR (Status)) {
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gBS->CloseEvent (MtftpSb->Timer);
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FreePool (MtftpSb);
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return Status;
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}
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//
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// Create the timer used to time out the procedure which is used to
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// get the default IP address.
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//
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Status = gBS->CreateEvent (
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EVT_TIMER,
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TPL_CALLBACK,
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NULL,
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NULL,
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&MtftpSb->TimerToGetMap
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);
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if (EFI_ERROR (Status)) {
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gBS->CloseEvent (MtftpSb->TimerNotifyLevel);
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gBS->CloseEvent (MtftpSb->Timer);
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FreePool (MtftpSb);
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return Status;
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}
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MtftpSb->ConnectUdp = UdpIoCreateIo (
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Controller,
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Image,
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Mtftp4ConfigNullUdp,
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UDP_IO_UDP4_VERSION,
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NULL
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);
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if (MtftpSb->ConnectUdp == NULL) {
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gBS->CloseEvent (MtftpSb->TimerToGetMap);
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gBS->CloseEvent (MtftpSb->TimerNotifyLevel);
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gBS->CloseEvent (MtftpSb->Timer);
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FreePool (MtftpSb);
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return EFI_DEVICE_ERROR;
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}
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*Service = MtftpSb;
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return EFI_SUCCESS;
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}
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/**
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Release all the resource used the MTFTP service binding instance.
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@param MtftpSb The MTFTP service binding instance.
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**/
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VOID
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Mtftp4CleanService (
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IN MTFTP4_SERVICE *MtftpSb
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)
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{
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UdpIoFreeIo (MtftpSb->ConnectUdp);
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gBS->CloseEvent (MtftpSb->TimerToGetMap);
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gBS->CloseEvent (MtftpSb->TimerNotifyLevel);
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gBS->CloseEvent (MtftpSb->Timer);
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}
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/**
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Start the MTFTP driver on this controller.
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MTFTP driver will install a MTFTP SERVICE BINDING protocol on the supported
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controller, which can be used to create/destroy MTFTP children.
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@param This The MTFTP driver binding protocol.
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@param Controller The controller to manage.
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@param RemainingDevicePath Remaining device path.
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@retval EFI_ALREADY_STARTED The MTFTP service binding protocol has been
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started on the controller.
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@retval EFI_SUCCESS The MTFTP service binding is installed on the
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controller.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp4DriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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{
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MTFTP4_SERVICE *MtftpSb;
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EFI_STATUS Status;
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//
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// Directly return if driver is already running.
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//
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Status = gBS->OpenProtocol (
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Controller,
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&gEfiMtftp4ServiceBindingProtocolGuid,
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NULL,
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This->DriverBindingHandle,
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Controller,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (Status == EFI_SUCCESS) {
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return EFI_ALREADY_STARTED;
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}
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Status = Mtftp4CreateService (Controller, This->DriverBindingHandle, &MtftpSb);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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ASSERT (MtftpSb != NULL);
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Status = gBS->SetTimer (MtftpSb->Timer, TimerPeriodic, TICKS_PER_SECOND);
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if (EFI_ERROR (Status)) {
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goto ON_ERROR;
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}
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Status = gBS->SetTimer (MtftpSb->TimerNotifyLevel, TimerPeriodic, TICKS_PER_SECOND);
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if (EFI_ERROR (Status)) {
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goto ON_ERROR;
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}
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//
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// Install the Mtftp4ServiceBinding Protocol onto Controller
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Controller,
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&gEfiMtftp4ServiceBindingProtocolGuid,
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&MtftpSb->ServiceBinding,
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NULL
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);
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if (EFI_ERROR (Status)) {
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goto ON_ERROR;
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}
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return EFI_SUCCESS;
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ON_ERROR:
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Mtftp4CleanService (MtftpSb);
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FreePool (MtftpSb);
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return Status;
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}
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/**
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Callback function which provided by user to remove one node in NetDestroyLinkList process.
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@param[in] Entry The entry to be removed.
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@param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.
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@retval EFI_SUCCESS The entry has been removed successfully.
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@retval Others Fail to remove the entry.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp4DestroyChildEntryInHandleBuffer (
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IN LIST_ENTRY *Entry,
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IN VOID *Context
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)
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{
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MTFTP4_PROTOCOL *Instance;
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EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
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UINTN NumberOfChildren;
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EFI_HANDLE *ChildHandleBuffer;
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if (Entry == NULL || Context == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Instance = NET_LIST_USER_STRUCT_S (Entry, MTFTP4_PROTOCOL, Link, MTFTP4_PROTOCOL_SIGNATURE);
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ServiceBinding = ((MTFTP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ServiceBinding;
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NumberOfChildren = ((MTFTP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->NumberOfChildren;
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ChildHandleBuffer = ((MTFTP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ChildHandleBuffer;
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if (!NetIsInHandleBuffer (Instance->Handle, NumberOfChildren, ChildHandleBuffer)) {
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return EFI_SUCCESS;
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}
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return ServiceBinding->DestroyChild (ServiceBinding, Instance->Handle);
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}
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/**
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Stop the MTFTP driver on controller. The controller is a UDP
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child handle.
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@param This The MTFTP driver binding protocol
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@param Controller The controller to stop
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@param NumberOfChildren The number of children
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@param ChildHandleBuffer The array of the child handle.
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@retval EFI_SUCCESS The driver is stopped on the controller.
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@retval EFI_DEVICE_ERROR Failed to stop the driver on the controller.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp4DriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
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IN EFI_HANDLE Controller,
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||||
IN UINTN NumberOfChildren,
|
||||
IN EFI_HANDLE *ChildHandleBuffer
|
||||
)
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{
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EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
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MTFTP4_SERVICE *MtftpSb;
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EFI_HANDLE NicHandle;
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EFI_STATUS Status;
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LIST_ENTRY *List;
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MTFTP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;
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//
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// MTFTP driver opens UDP child, So, Controller is a UDP
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// child handle. Locate the Nic handle first. Then get the
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// MTFTP private data back.
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//
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NicHandle = NetLibGetNicHandle (Controller, &gEfiUdp4ProtocolGuid);
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if (NicHandle == NULL) {
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return EFI_SUCCESS;
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}
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Status = gBS->OpenProtocol (
|
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NicHandle,
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&gEfiMtftp4ServiceBindingProtocolGuid,
|
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(VOID **) &ServiceBinding,
|
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This->DriverBindingHandle,
|
||||
NicHandle,
|
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
return EFI_DEVICE_ERROR;
|
||||
}
|
||||
|
||||
MtftpSb = MTFTP4_SERVICE_FROM_THIS (ServiceBinding);
|
||||
|
||||
if (!IsListEmpty (&MtftpSb->Children)) {
|
||||
//
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||||
// Destroy the Mtftp4 child instance in ChildHandleBuffer.
|
||||
//
|
||||
List = &MtftpSb->Children;
|
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Context.ServiceBinding = ServiceBinding;
|
||||
Context.NumberOfChildren = NumberOfChildren;
|
||||
Context.ChildHandleBuffer = ChildHandleBuffer;
|
||||
Status = NetDestroyLinkList (
|
||||
List,
|
||||
Mtftp4DestroyChildEntryInHandleBuffer,
|
||||
&Context,
|
||||
NULL
|
||||
);
|
||||
}
|
||||
|
||||
if (NumberOfChildren == 0 && IsListEmpty (&MtftpSb->Children)) {
|
||||
gBS->UninstallProtocolInterface (
|
||||
NicHandle,
|
||||
&gEfiMtftp4ServiceBindingProtocolGuid,
|
||||
ServiceBinding
|
||||
);
|
||||
|
||||
Mtftp4CleanService (MtftpSb);
|
||||
if (gMtftp4ControllerNameTable != NULL) {
|
||||
FreeUnicodeStringTable (gMtftp4ControllerNameTable);
|
||||
gMtftp4ControllerNameTable = NULL;
|
||||
}
|
||||
FreePool (MtftpSb);
|
||||
|
||||
Status = EFI_SUCCESS;
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Initialize a MTFTP protocol instance which is the child of MtftpSb.
|
||||
|
||||
@param MtftpSb The MTFTP service binding protocol.
|
||||
@param Instance The MTFTP instance to initialize.
|
||||
|
||||
**/
|
||||
VOID
|
||||
Mtftp4InitProtocol (
|
||||
IN MTFTP4_SERVICE *MtftpSb,
|
||||
OUT MTFTP4_PROTOCOL *Instance
|
||||
)
|
||||
{
|
||||
ZeroMem (Instance, sizeof (MTFTP4_PROTOCOL));
|
||||
|
||||
Instance->Signature = MTFTP4_PROTOCOL_SIGNATURE;
|
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InitializeListHead (&Instance->Link);
|
||||
CopyMem (&Instance->Mtftp4, &gMtftp4ProtocolTemplate, sizeof (Instance->Mtftp4));
|
||||
Instance->State = MTFTP4_STATE_UNCONFIGED;
|
||||
Instance->Service = MtftpSb;
|
||||
|
||||
InitializeListHead (&Instance->Blocks);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
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;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Destroy one of the service binding's child.
|
||||
|
||||
@param This The service binding instance
|
||||
@param ChildHandle The child handle to destroy
|
||||
|
||||
@retval EFI_INVALID_PARAMETER The parameter is invaid.
|
||||
@retval EFI_UNSUPPORTED The child may have already been destroyed.
|
||||
@retval EFI_SUCCESS The child is destroyed and removed from the
|
||||
parent's child list.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Mtftp4ServiceBindingDestroyChild (
|
||||
IN EFI_SERVICE_BINDING_PROTOCOL *This,
|
||||
IN EFI_HANDLE ChildHandle
|
||||
)
|
||||
{
|
||||
MTFTP4_SERVICE *MtftpSb;
|
||||
MTFTP4_PROTOCOL *Instance;
|
||||
EFI_MTFTP4_PROTOCOL *Mtftp4;
|
||||
EFI_STATUS Status;
|
||||
EFI_TPL OldTpl;
|
||||
|
||||
if ((This == NULL) || (ChildHandle == NULL)) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
//
|
||||
// Retrieve the private context data structures
|
||||
//
|
||||
Status = gBS->OpenProtocol (
|
||||
ChildHandle,
|
||||
&gEfiMtftp4ProtocolGuid,
|
||||
(VOID **) &Mtftp4,
|
||||
gMtftp4DriverBinding.DriverBindingHandle,
|
||||
ChildHandle,
|
||||
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
Instance = MTFTP4_PROTOCOL_FROM_THIS (Mtftp4);
|
||||
MtftpSb = MTFTP4_SERVICE_FROM_THIS (This);
|
||||
|
||||
if (Instance->Service != MtftpSb) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
if (Instance->InDestroy) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
Instance->InDestroy = TRUE;
|
||||
|
||||
//
|
||||
// Close the Udp4 protocol.
|
||||
//
|
||||
gBS->CloseProtocol (
|
||||
MtftpSb->ConnectUdp->UdpHandle,
|
||||
&gEfiUdp4ProtocolGuid,
|
||||
gMtftp4DriverBinding.DriverBindingHandle,
|
||||
ChildHandle
|
||||
);
|
||||
|
||||
gBS->CloseProtocol (
|
||||
Instance->UnicastPort->UdpHandle,
|
||||
&gEfiUdp4ProtocolGuid,
|
||||
gMtftp4DriverBinding.DriverBindingHandle,
|
||||
ChildHandle
|
||||
);
|
||||
|
||||
if (Instance->McastUdpPort != NULL) {
|
||||
gBS->CloseProtocol (
|
||||
Instance->McastUdpPort->UdpHandle,
|
||||
&gEfiUdp4ProtocolGuid,
|
||||
gMtftp4DriverBinding.DriverBindingHandle,
|
||||
ChildHandle
|
||||
);
|
||||
}
|
||||
|
||||
//
|
||||
// Uninstall the MTFTP4 protocol first to enable a top down destruction.
|
||||
//
|
||||
Status = gBS->UninstallProtocolInterface (
|
||||
ChildHandle,
|
||||
&gEfiMtftp4ProtocolGuid,
|
||||
Mtftp4
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
Instance->InDestroy = FALSE;
|
||||
return Status;
|
||||
}
|
||||
|
||||
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
|
||||
|
||||
Mtftp4CleanOperation (Instance, EFI_DEVICE_ERROR);
|
||||
UdpIoFreeIo (Instance->UnicastPort);
|
||||
|
||||
RemoveEntryList (&Instance->Link);
|
||||
MtftpSb->ChildrenNum--;
|
||||
|
||||
gBS->RestoreTPL (OldTpl);
|
||||
|
||||
FreePool (Instance);
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
Reference in New Issue
Block a user