585 lines
17 KiB
C
585 lines
17 KiB
C
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/** @file
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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 "Udp4Impl.h"
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EFI_DRIVER_BINDING_PROTOCOL gUdp4DriverBinding = {
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Udp4DriverBindingSupported,
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Udp4DriverBindingStart,
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Udp4DriverBindingStop,
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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 mUdp4ServiceBinding = {
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Udp4ServiceBindingCreateChild,
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Udp4ServiceBindingDestroyChild
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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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Udp4DestroyChildEntryInHandleBuffer (
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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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UDP4_INSTANCE_DATA *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, UDP4_INSTANCE_DATA, Link, UDP4_INSTANCE_DATA_SIGNATURE);
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ServiceBinding = ((UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ServiceBinding;
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NumberOfChildren = ((UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->NumberOfChildren;
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ChildHandleBuffer = ((UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ChildHandleBuffer;
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if (!NetIsInHandleBuffer (Instance->ChildHandle, NumberOfChildren, ChildHandleBuffer)) {
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return EFI_SUCCESS;
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}
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return ServiceBinding->DestroyChild (ServiceBinding, Instance->ChildHandle);
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}
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/**
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Test to see if this driver supports ControllerHandle. This service
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is called by the EFI boot service ConnectController(). In
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order to make drivers as small as possible, there are a few calling
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restrictions for this service. ConnectController() must
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follow these calling restrictions. If any other agent wishes to call
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Supported() it must also follow these calling restrictions.
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@param[in] This Protocol instance pointer.
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@param[in] ControllerHandle Handle of device to test
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@param[in] RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver supports this device
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@retval EFI_ALREADY_STARTED This driver is already running on this device
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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Udp4DriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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//
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// Test for the Udp4ServiceBinding Protocol
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//
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiUdp4ServiceBindingProtocolGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (!EFI_ERROR (Status)) {
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return EFI_ALREADY_STARTED;
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}
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//
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// Test for the Ip4 Protocol
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//
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiIp4ServiceBindingProtocolGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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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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Start this driver on ControllerHandle. This service is called by the
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EFI boot service ConnectController(). In order to make
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drivers as small as possible, there are a few calling restrictions for
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this service. ConnectController() must follow these
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calling restrictions. If any other agent wishes to call Start() it
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must also follow these calling restrictions.
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@param[in] This Protocol instance pointer.
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@param[in] ControllerHandle Handle of device to bind driver to
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@param[in] RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver is added to ControllerHandle
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@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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Udp4DriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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UDP4_SERVICE_DATA *Udp4Service;
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//
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// Allocate Private Context Data Structure.
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//
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Udp4Service = AllocatePool (sizeof (UDP4_SERVICE_DATA));
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if (Udp4Service == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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Status = Udp4CreateService (Udp4Service, This->DriverBindingHandle, ControllerHandle);
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if (EFI_ERROR (Status)) {
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FreePool (Udp4Service);
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return Status;
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}
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//
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// Install the Udp4ServiceBindingProtocol on the ControllerHandle.
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&ControllerHandle,
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&gEfiUdp4ServiceBindingProtocolGuid,
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&Udp4Service->ServiceBinding,
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NULL
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);
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if (EFI_ERROR (Status)) {
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Udp4CleanService (Udp4Service);
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FreePool (Udp4Service);
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}
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return Status;
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}
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/**
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Stop this driver on ControllerHandle. This service is called by the
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EFI boot service DisconnectController(). In order to
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make drivers as small as possible, there are a few calling
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restrictions for this service. DisconnectController()
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must follow these calling restrictions. If any other agent wishes
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to call Stop() it must also follow these calling restrictions.
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@param[in] This Protocol instance pointer.
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@param[in] ControllerHandle Handle of device to stop driver on
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@param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
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children is zero stop the entire bus driver.
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@param[in] ChildHandleBuffer List of Child Handles to Stop.
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@retval EFI_SUCCESS This driver is removed ControllerHandle
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@retval other This driver was not removed from this device
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**/
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EFI_STATUS
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EFIAPI
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Udp4DriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE NicHandle;
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EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
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UDP4_SERVICE_DATA *Udp4Service;
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UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;
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LIST_ENTRY *List;
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//
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// Find the NicHandle where UDP4 ServiceBinding Protocol is installed.
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//
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NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiIp4ProtocolGuid);
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if (NicHandle == NULL) {
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return EFI_SUCCESS;
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}
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//
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// Retrieve the UDP4 ServiceBinding Protocol.
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//
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Status = gBS->OpenProtocol (
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NicHandle,
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&gEfiUdp4ServiceBindingProtocolGuid,
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(VOID **) &ServiceBinding,
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This->DriverBindingHandle,
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NicHandle,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return EFI_DEVICE_ERROR;
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}
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Udp4Service = UDP4_SERVICE_DATA_FROM_THIS (ServiceBinding);
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if (NumberOfChildren != 0) {
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//
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// NumberOfChildren is not zero, destroy the children instances in ChildHandleBuffer.
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//
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List = &Udp4Service->ChildrenList;
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Context.ServiceBinding = ServiceBinding;
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Context.NumberOfChildren = NumberOfChildren;
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Context.ChildHandleBuffer = ChildHandleBuffer;
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Status = NetDestroyLinkList (
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List,
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Udp4DestroyChildEntryInHandleBuffer,
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&Context,
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NULL
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);
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} else {
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gBS->UninstallMultipleProtocolInterfaces (
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NicHandle,
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&gEfiUdp4ServiceBindingProtocolGuid,
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&Udp4Service->ServiceBinding,
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NULL
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);
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Udp4CleanService (Udp4Service);
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if (gUdpControllerNameTable != NULL) {
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FreeUnicodeStringTable (gUdpControllerNameTable);
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gUdpControllerNameTable = NULL;
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}
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FreePool (Udp4Service);
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}
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return Status;
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}
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/**
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Creates a child handle and installs a protocol.
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The CreateChild() function installs a protocol on ChildHandle.
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If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.
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If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.
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@param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
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@param[in] ChildHandle Pointer to the handle of the child to create. If it is NULL,
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then a new handle is created. If it is a pointer to an existing UEFI handle,
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then the protocol is added to the existing UEFI handle.
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@retval EFI_SUCCES The protocol was added to ChildHandle.
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@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
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@retval EFI_OUT_OF_RESOURCES There are not enough resources available to create
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the child
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@retval other The child handle was not created
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**/
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EFI_STATUS
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EFIAPI
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Udp4ServiceBindingCreateChild (
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IN EFI_SERVICE_BINDING_PROTOCOL *This,
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IN EFI_HANDLE *ChildHandle
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)
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{
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EFI_STATUS Status;
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UDP4_SERVICE_DATA *Udp4Service;
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UDP4_INSTANCE_DATA *Instance;
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EFI_TPL OldTpl;
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VOID *Ip4;
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if ((This == NULL) || (ChildHandle == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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Udp4Service = UDP4_SERVICE_DATA_FROM_THIS (This);
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//
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// Allocate the instance private data structure.
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//
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Instance = AllocateZeroPool (sizeof (UDP4_INSTANCE_DATA));
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if (Instance == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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Udp4InitInstance (Udp4Service, Instance);
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//
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// Add an IpInfo for this instance.
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//
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Instance->IpInfo = IpIoAddIp (Udp4Service->IpIo);
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if (Instance->IpInfo == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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goto ON_ERROR;
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}
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//
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// Install the Udp4Protocol for this instance.
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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ChildHandle,
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&gEfiUdp4ProtocolGuid,
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&Instance->Udp4Proto,
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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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Instance->ChildHandle = *ChildHandle;
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//
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// Open the default Ip4 protocol in the IP_IO BY_CHILD.
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//
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Status = gBS->OpenProtocol (
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Udp4Service->IpIo->ChildHandle,
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&gEfiIp4ProtocolGuid,
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(VOID **) &Ip4,
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gUdp4DriverBinding.DriverBindingHandle,
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Instance->ChildHandle,
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EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
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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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//
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// Open this instance's Ip4 protocol in the IpInfo BY_CHILD.
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//
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Status = gBS->OpenProtocol (
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Instance->IpInfo->ChildHandle,
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&gEfiIp4ProtocolGuid,
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(VOID **) &Ip4,
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gUdp4DriverBinding.DriverBindingHandle,
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Instance->ChildHandle,
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EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
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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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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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//
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// Link this instance into the service context data and increase the ChildrenNumber.
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//
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InsertTailList (&Udp4Service->ChildrenList, &Instance->Link);
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Udp4Service->ChildrenNumber++;
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gBS->RestoreTPL (OldTpl);
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return EFI_SUCCESS;
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ON_ERROR:
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if (Instance->ChildHandle != NULL) {
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gBS->UninstallMultipleProtocolInterfaces (
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Instance->ChildHandle,
|
||
|
|
&gEfiUdp4ProtocolGuid,
|
||
|
|
&Instance->Udp4Proto,
|
||
|
|
NULL
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Instance->IpInfo != NULL) {
|
||
|
|
IpIoRemoveIp (Udp4Service->IpIo, Instance->IpInfo);
|
||
|
|
}
|
||
|
|
|
||
|
|
Udp4CleanInstance (Instance);
|
||
|
|
|
||
|
|
FreePool (Instance);
|
||
|
|
|
||
|
|
return Status;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Destroys a child handle with a protocol installed on it.
|
||
|
|
|
||
|
|
The DestroyChild() function does the opposite of CreateChild(). It removes a protocol
|
||
|
|
that was installed by CreateChild() from ChildHandle. If the removed protocol is the
|
||
|
|
last protocol on ChildHandle, then ChildHandle is destroyed.
|
||
|
|
|
||
|
|
@param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
|
||
|
|
@param[in] ChildHandle Handle of the child to destroy
|
||
|
|
|
||
|
|
@retval EFI_SUCCES The protocol was removed from ChildHandle.
|
||
|
|
@retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.
|
||
|
|
@retval EFI_INVALID_PARAMETER Child handle is NULL.
|
||
|
|
@retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle
|
||
|
|
because its services are being used.
|
||
|
|
@retval other The child handle was not destroyed
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
EFIAPI
|
||
|
|
Udp4ServiceBindingDestroyChild (
|
||
|
|
IN EFI_SERVICE_BINDING_PROTOCOL *This,
|
||
|
|
IN EFI_HANDLE ChildHandle
|
||
|
|
)
|
||
|
|
{
|
||
|
|
EFI_STATUS Status;
|
||
|
|
UDP4_SERVICE_DATA *Udp4Service;
|
||
|
|
EFI_UDP4_PROTOCOL *Udp4Proto;
|
||
|
|
UDP4_INSTANCE_DATA *Instance;
|
||
|
|
EFI_TPL OldTpl;
|
||
|
|
|
||
|
|
if ((This == NULL) || (ChildHandle == NULL)) {
|
||
|
|
return EFI_INVALID_PARAMETER;
|
||
|
|
}
|
||
|
|
|
||
|
|
Udp4Service = UDP4_SERVICE_DATA_FROM_THIS (This);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Try to get the Udp4 protocol from the ChildHandle.
|
||
|
|
//
|
||
|
|
Status = gBS->OpenProtocol (
|
||
|
|
ChildHandle,
|
||
|
|
&gEfiUdp4ProtocolGuid,
|
||
|
|
(VOID **) &Udp4Proto,
|
||
|
|
gUdp4DriverBinding.DriverBindingHandle,
|
||
|
|
ChildHandle,
|
||
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
||
|
|
);
|
||
|
|
if (EFI_ERROR (Status)) {
|
||
|
|
return EFI_UNSUPPORTED;
|
||
|
|
}
|
||
|
|
|
||
|
|
Instance = UDP4_INSTANCE_DATA_FROM_THIS (Udp4Proto);
|
||
|
|
|
||
|
|
if (Instance->InDestroy) {
|
||
|
|
return EFI_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Use the Destroyed flag to avoid the re-entering of the following code.
|
||
|
|
//
|
||
|
|
Instance->InDestroy = TRUE;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Close the Ip4 protocol.
|
||
|
|
//
|
||
|
|
gBS->CloseProtocol (
|
||
|
|
Udp4Service->IpIo->ChildHandle,
|
||
|
|
&gEfiIp4ProtocolGuid,
|
||
|
|
gUdp4DriverBinding.DriverBindingHandle,
|
||
|
|
Instance->ChildHandle
|
||
|
|
);
|
||
|
|
//
|
||
|
|
// Close the Ip4 protocol on this instance's IpInfo.
|
||
|
|
//
|
||
|
|
gBS->CloseProtocol (
|
||
|
|
Instance->IpInfo->ChildHandle,
|
||
|
|
&gEfiIp4ProtocolGuid,
|
||
|
|
gUdp4DriverBinding.DriverBindingHandle,
|
||
|
|
Instance->ChildHandle
|
||
|
|
);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Uninstall the Udp4Protocol previously installed on the ChildHandle.
|
||
|
|
//
|
||
|
|
Status = gBS->UninstallMultipleProtocolInterfaces (
|
||
|
|
ChildHandle,
|
||
|
|
&gEfiUdp4ProtocolGuid,
|
||
|
|
(VOID *) &Instance->Udp4Proto,
|
||
|
|
NULL
|
||
|
|
);
|
||
|
|
if (EFI_ERROR (Status)) {
|
||
|
|
Instance->InDestroy = FALSE;
|
||
|
|
return Status;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Reset the configuration in case the instance's consumer forgets to do this.
|
||
|
|
//
|
||
|
|
Udp4Proto->Configure (Udp4Proto, NULL);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Remove the IpInfo this instance consumes.
|
||
|
|
//
|
||
|
|
IpIoRemoveIp (Udp4Service->IpIo, Instance->IpInfo);
|
||
|
|
|
||
|
|
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Remove this instance from the service context data's ChildrenList.
|
||
|
|
//
|
||
|
|
RemoveEntryList (&Instance->Link);
|
||
|
|
Udp4Service->ChildrenNumber--;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Clean the instance.
|
||
|
|
//
|
||
|
|
Udp4CleanInstance (Instance);
|
||
|
|
|
||
|
|
gBS->RestoreTPL (OldTpl);
|
||
|
|
|
||
|
|
FreePool (Instance);
|
||
|
|
|
||
|
|
return EFI_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
This is the declaration of an EFI image entry point. This entry point is
|
||
|
|
the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
|
||
|
|
both device drivers and bus drivers.
|
||
|
|
|
||
|
|
The entry point for Udp4 driver which installs the driver binding
|
||
|
|
and component name protocol on its ImageHandle.
|
||
|
|
|
||
|
|
@param[in] ImageHandle The firmware allocated handle for the UEFI image.
|
||
|
|
@param[in] SystemTable A pointer to the EFI System Table.
|
||
|
|
|
||
|
|
@retval EFI_SUCCESS The operation completed successfully.
|
||
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
EFIAPI
|
||
|
|
Udp4DriverEntryPoint (
|
||
|
|
IN EFI_HANDLE ImageHandle,
|
||
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
||
|
|
)
|
||
|
|
{
|
||
|
|
EFI_STATUS Status;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Install the Udp4DriverBinding and Udp4ComponentName protocols.
|
||
|
|
//
|
||
|
|
Status = EfiLibInstallDriverBindingComponentName2 (
|
||
|
|
ImageHandle,
|
||
|
|
SystemTable,
|
||
|
|
&gUdp4DriverBinding,
|
||
|
|
ImageHandle,
|
||
|
|
&gUdp4ComponentName,
|
||
|
|
&gUdp4ComponentName2
|
||
|
|
);
|
||
|
|
if (!EFI_ERROR (Status)) {
|
||
|
|
//
|
||
|
|
// Initialize the UDP random port.
|
||
|
|
//
|
||
|
|
mUdp4RandomPort = (UINT16) (((UINT16) NetRandomInitSeed ()) % UDP4_PORT_KNOWN + UDP4_PORT_KNOWN);
|
||
|
|
}
|
||
|
|
|
||
|
|
return Status;
|
||
|
|
}
|
||
|
|
|