+++ /dev/null
-/** @file\r
- ARP driver functions.\r
-\r
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
-SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include "ArpDriver.h"\r
-#include "ArpImpl.h"\r
-\r
-EFI_DRIVER_BINDING_PROTOCOL gArpDriverBinding = {\r
- ArpDriverBindingSupported,\r
- ArpDriverBindingStart,\r
- ArpDriverBindingStop,\r
- 0xa,\r
- NULL,\r
- NULL\r
-};\r
-\r
-\r
-/**\r
- Create and initialize the arp service context data.\r
-\r
- @param[in] ImageHandle The image handle representing the loaded driver\r
- image.\r
- @param[in] ControllerHandle The controller handle the driver binds to.\r
- @param[in, out] ArpService Pointer to the buffer containing the arp service\r
- context data.\r
-\r
- @retval EFI_SUCCESS The arp service context is initialized.\r
-\r
- @retval EFI_UNSUPPORTED The underlayer Snp mode type is not ethernet.\r
- Failed to initialize the service context.\r
- @retval other Failed to initialize the arp service context.\r
-\r
-**/\r
-EFI_STATUS\r
-ArpCreateService (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_HANDLE ControllerHandle,\r
- IN OUT ARP_SERVICE_DATA *ArpService\r
- )\r
-{\r
- EFI_STATUS Status;\r
-\r
- ASSERT (ArpService != NULL);\r
-\r
- ArpService->Signature = ARP_SERVICE_DATA_SIGNATURE;\r
-\r
- //\r
- // Init the lists.\r
- //\r
- InitializeListHead (&ArpService->ChildrenList);\r
- InitializeListHead (&ArpService->PendingRequestTable);\r
- InitializeListHead (&ArpService->DeniedCacheTable);\r
- InitializeListHead (&ArpService->ResolvedCacheTable);\r
-\r
- //\r
- // Init the servicebinding protocol members.\r
- //\r
- ArpService->ServiceBinding.CreateChild = ArpServiceBindingCreateChild;\r
- ArpService->ServiceBinding.DestroyChild = ArpServiceBindingDestroyChild;\r
-\r
- //\r
- // Save the handles.\r
- //\r
- ArpService->ImageHandle = ImageHandle;\r
- ArpService->ControllerHandle = ControllerHandle;\r
-\r
- //\r
- // Create a MNP child instance.\r
- //\r
- Status = NetLibCreateServiceChild (\r
- ControllerHandle,\r
- ImageHandle,\r
- &gEfiManagedNetworkServiceBindingProtocolGuid,\r
- &ArpService->MnpChildHandle\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Open the MNP protocol.\r
- //\r
- Status = gBS->OpenProtocol (\r
- ArpService->MnpChildHandle,\r
- &gEfiManagedNetworkProtocolGuid,\r
- (VOID **)&ArpService->Mnp,\r
- ImageHandle,\r
- ControllerHandle,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR_EXIT;\r
- }\r
-\r
- //\r
- // Get the underlayer Snp mode data.\r
- //\r
- Status = ArpService->Mnp->GetModeData (ArpService->Mnp, NULL, &ArpService->SnpMode);\r
- if ((Status != EFI_NOT_STARTED) && EFI_ERROR (Status)) {\r
- goto ERROR_EXIT;\r
- }\r
-\r
- if (ArpService->SnpMode.IfType != NET_IFTYPE_ETHERNET) {\r
- //\r
- // Only support the ethernet.\r
- //\r
- Status = EFI_UNSUPPORTED;\r
- goto ERROR_EXIT;\r
- }\r
-\r
- //\r
- // Set the Mnp config parameters.\r
- //\r
- ArpService->MnpConfigData.ReceivedQueueTimeoutValue = 0;\r
- ArpService->MnpConfigData.TransmitQueueTimeoutValue = 0;\r
- ArpService->MnpConfigData.ProtocolTypeFilter = ARP_ETHER_PROTO_TYPE;\r
- ArpService->MnpConfigData.EnableUnicastReceive = TRUE;\r
- ArpService->MnpConfigData.EnableMulticastReceive = FALSE;\r
- ArpService->MnpConfigData.EnableBroadcastReceive = TRUE;\r
- ArpService->MnpConfigData.EnablePromiscuousReceive = FALSE;\r
- ArpService->MnpConfigData.FlushQueuesOnReset = TRUE;\r
- ArpService->MnpConfigData.EnableReceiveTimestamps = FALSE;\r
- ArpService->MnpConfigData.DisableBackgroundPolling = FALSE;\r
-\r
- //\r
- // Configure the Mnp child.\r
- //\r
- Status = ArpService->Mnp->Configure (ArpService->Mnp, &ArpService->MnpConfigData);\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR_EXIT;\r
- }\r
-\r
- //\r
- // Create the event used in the RxToken.\r
- //\r
- Status = gBS->CreateEvent (\r
- EVT_NOTIFY_SIGNAL,\r
- TPL_NOTIFY,\r
- ArpOnFrameRcvd,\r
- ArpService,\r
- &ArpService->RxToken.Event\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR_EXIT;\r
- }\r
-\r
- //\r
- // Create the Arp heartbeat timer.\r
- //\r
- Status = gBS->CreateEvent (\r
- EVT_NOTIFY_SIGNAL | EVT_TIMER,\r
- TPL_CALLBACK,\r
- ArpTimerHandler,\r
- ArpService,\r
- &ArpService->PeriodicTimer\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR_EXIT;\r
- }\r
-\r
- //\r
- // Start the heartbeat timer.\r
- //\r
- Status = gBS->SetTimer (\r
- ArpService->PeriodicTimer,\r
- TimerPeriodic,\r
- ARP_PERIODIC_TIMER_INTERVAL\r
- );\r
-\r
-ERROR_EXIT:\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Clean the arp service context data.\r
-\r
- @param[in, out] ArpService Pointer to the buffer containing the arp service\r
- context data.\r
-\r
- @return None.\r
-\r
-**/\r
-VOID\r
-ArpCleanService (\r
- IN OUT ARP_SERVICE_DATA *ArpService\r
- )\r
-{\r
- NET_CHECK_SIGNATURE (ArpService, ARP_SERVICE_DATA_SIGNATURE);\r
-\r
- if (ArpService->PeriodicTimer != NULL) {\r
- //\r
- // Cancle and close the PeriodicTimer.\r
- //\r
- gBS->SetTimer (ArpService->PeriodicTimer, TimerCancel, 0);\r
- gBS->CloseEvent (ArpService->PeriodicTimer);\r
- }\r
-\r
- if (ArpService->RxToken.Event != NULL) {\r
- //\r
- // Cancle the RxToken and close the event in the RxToken.\r
- //\r
- ArpService->Mnp->Cancel (ArpService->Mnp, NULL);\r
- gBS->CloseEvent (ArpService->RxToken.Event);\r
- }\r
-\r
- if (ArpService->Mnp != NULL) {\r
- //\r
- // Reset the Mnp child and close the Mnp protocol.\r
- //\r
- ArpService->Mnp->Configure (ArpService->Mnp, NULL);\r
- gBS->CloseProtocol (\r
- ArpService->MnpChildHandle,\r
- &gEfiManagedNetworkProtocolGuid,\r
- ArpService->ImageHandle,\r
- ArpService->ControllerHandle\r
- );\r
- }\r
-\r
- if (ArpService->MnpChildHandle != NULL) {\r
- //\r
- // Destroy the mnp child.\r
- //\r
- NetLibDestroyServiceChild(\r
- ArpService->ControllerHandle,\r
- ArpService->ImageHandle,\r
- &gEfiManagedNetworkServiceBindingProtocolGuid,\r
- ArpService->MnpChildHandle\r
- );\r
- }\r
-}\r
-\r
-/**\r
- Callback function which provided by user to remove one node in NetDestroyLinkList process.\r
-\r
- @param[in] Entry The entry to be removed.\r
- @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.\r
-\r
- @retval EFI_SUCCESS The entry has been removed successfully.\r
- @retval Others Fail to remove the entry.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpDestroyChildEntryInHandleBuffer (\r
- IN LIST_ENTRY *Entry,\r
- IN VOID *Context\r
- )\r
-{\r
- ARP_INSTANCE_DATA *Instance;\r
- EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r
-\r
- if (Entry == NULL || Context == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Instance = NET_LIST_USER_STRUCT_S (Entry, ARP_INSTANCE_DATA, List, ARP_INSTANCE_DATA_SIGNATURE);\r
- ServiceBinding = (EFI_SERVICE_BINDING_PROTOCOL *) Context;\r
-\r
- return ServiceBinding->DestroyChild (ServiceBinding, Instance->Handle);\r
-}\r
-\r
-/**\r
- Tests to see if this driver supports a given controller.\r
-\r
- If a child device is provided, it further tests to see if this driver supports\r
- creating a handle for the specified child device.\r
-\r
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
- @param[in] ControllerHandle The handle of the controller to test. This handle\r
- must support a protocol interface that supplies\r
- an I/O abstraction to the driver.\r
- @param[in] RemainingDevicePath A pointer to the remaining portion of a device path.\r
- This parameter is ignored by device drivers,\r
- and is optional for bus drivers.\r
-\r
- @retval EFI_SUCCESS The device specified by ControllerHandle and\r
- RemainingDevicePath is supported by the driver\r
- specified by This.\r
- @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
- RemainingDevicePath is already being managed\r
- by the driver specified by This.\r
- @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
- RemainingDevicePath is already being managed by\r
- a different driver or an application that\r
- requires exclusive acces. Currently not implemented.\r
- @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
- RemainingDevicePath is not supported by the\r
- driver specified by This.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpDriverBindingSupported (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE ControllerHandle,\r
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
- )\r
-{\r
- EFI_STATUS Status;\r
-\r
- //\r
- // Test to see if Arp SB is already installed.\r
- //\r
- Status = gBS->OpenProtocol (\r
- ControllerHandle,\r
- &gEfiArpServiceBindingProtocolGuid,\r
- NULL,\r
- This->DriverBindingHandle,\r
- ControllerHandle,\r
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
- );\r
- if (Status == EFI_SUCCESS) {\r
- return EFI_ALREADY_STARTED;\r
- }\r
-\r
- //\r
- // Test to see if MNP SB is installed.\r
- //\r
- Status = gBS->OpenProtocol (\r
- ControllerHandle,\r
- &gEfiManagedNetworkServiceBindingProtocolGuid,\r
- NULL,\r
- This->DriverBindingHandle,\r
- ControllerHandle,\r
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
- );\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Start this driver on ControllerHandle.\r
-\r
- The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
- As a result, much of the error checking on the parameters to Start() has been\r
- moved into this common boot service. It is legal to call Start() from other locations,\r
- but the following calling restrictions must be followed or the system behavior\r
- will not be deterministic.\r
- 1. ControllerHandle must be a valid EFI_HANDLE.\r
- 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally\r
- aligned EFI_DEVICE_PATH_PROTOCOL.\r
- 3. Prior to calling Start(), the Supported() function for the driver specified\r
- by This must have been called with the same calling parameters, and Supported()\r
- must have returned EFI_SUCCESS.\r
-\r
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
- @param[in] ControllerHandle The handle of the controller to start. This handle\r
- must support a protocol interface that supplies\r
- an I/O abstraction to the driver.\r
- @param[in] RemainingDevicePath A pointer to the remaining portion of a device path.\r
- This parameter is ignored by device drivers,\r
- and is optional for bus drivers.\r
-\r
- @retval EFI_SUCCESS The device was started.\r
- @retval EFI_DEVICE_ERROR The device could not be started due to a device error.\r
- Currently not implemented.\r
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of\r
- resources.\r
- @retval Others The driver failded to start the device.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpDriverBindingStart (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE ControllerHandle,\r
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
- )\r
-{\r
- EFI_STATUS Status;\r
- ARP_SERVICE_DATA *ArpService;\r
-\r
- //\r
- // Allocate a zero pool for ArpService.\r
- //\r
- ArpService = AllocateZeroPool (sizeof(ARP_SERVICE_DATA));\r
- if (ArpService == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- //\r
- // Initialize the arp service context data.\r
- //\r
- Status = ArpCreateService (This->DriverBindingHandle, ControllerHandle, ArpService);\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR;\r
- }\r
-\r
- //\r
- // Install the ARP service binding protocol.\r
- //\r
- Status = gBS->InstallMultipleProtocolInterfaces (\r
- &ControllerHandle,\r
- &gEfiArpServiceBindingProtocolGuid,\r
- &ArpService->ServiceBinding,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR;\r
- }\r
-\r
- //\r
- // OK, start to receive arp packets from Mnp.\r
- //\r
- Status = ArpService->Mnp->Receive (ArpService->Mnp, &ArpService->RxToken);\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR;\r
- }\r
-\r
- return Status;\r
-\r
-ERROR:\r
-\r
- //\r
- // On error, clean the arp service context data, and free the memory allocated.\r
- //\r
- ArpCleanService (ArpService);\r
- FreePool (ArpService);\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Stop this driver on ControllerHandle.\r
-\r
- Release the control of this controller and remove the IScsi functions. The Stop()\r
- function is designed to be invoked from the EFI boot service DisconnectController().\r
- As a result, much of the error checking on the parameters to Stop() has been moved\r
- into this common boot service. It is legal to call Stop() from other locations,\r
- but the following calling restrictions must be followed or the system behavior\r
- will not be deterministic.\r
- 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
- same driver's Start() function.\r
- 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
- EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
- Start() function, and the Start() function must have called OpenProtocol() on\r
- ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
-\r
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
- @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
- support a bus specific I/O protocol for the driver\r
- to use to stop the device.\r
- @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
- Not used.\r
- @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
- if NumberOfChildren is 0.Not used.\r
-\r
- @retval EFI_SUCCESS The device was stopped.\r
- @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpDriverBindingStop (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE ControllerHandle,\r
- IN UINTN NumberOfChildren,\r
- IN EFI_HANDLE *ChildHandleBuffer\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_HANDLE NicHandle;\r
- EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;\r
- ARP_SERVICE_DATA *ArpService;\r
- LIST_ENTRY *List;\r
-\r
- //\r
- // Get the NicHandle which the arp servicebinding is installed on.\r
- //\r
- NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiManagedNetworkProtocolGuid);\r
- if (NicHandle == NULL) {\r
- return EFI_SUCCESS;\r
- }\r
-\r
- //\r
- // Try to get the arp servicebinding protocol on the NicHandle.\r
- //\r
- Status = gBS->OpenProtocol (\r
- NicHandle,\r
- &gEfiArpServiceBindingProtocolGuid,\r
- (VOID **)&ServiceBinding,\r
- This->DriverBindingHandle,\r
- ControllerHandle,\r
- EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "ArpDriverBindingStop: Open ArpSb failed, %r.\n", Status));\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- ArpService = ARP_SERVICE_DATA_FROM_THIS (ServiceBinding);\r
-\r
- if (NumberOfChildren != 0) {\r
- //\r
- // NumberOfChildren is not zero, destroy all the ARP children instances.\r
- //\r
- List = &ArpService->ChildrenList;\r
- Status = NetDestroyLinkList (\r
- List,\r
- ArpDestroyChildEntryInHandleBuffer,\r
- ServiceBinding,\r
- NULL\r
- );\r
- ASSERT (IsListEmpty (&ArpService->PendingRequestTable));\r
- ASSERT (IsListEmpty (&ArpService->DeniedCacheTable));\r
- ASSERT (IsListEmpty (&ArpService->ResolvedCacheTable));\r
- } else if (IsListEmpty (&ArpService->ChildrenList)) {\r
- //\r
- // Uninstall the ARP ServiceBinding protocol.\r
- //\r
- gBS->UninstallMultipleProtocolInterfaces (\r
- NicHandle,\r
- &gEfiArpServiceBindingProtocolGuid,\r
- &ArpService->ServiceBinding,\r
- NULL\r
- );\r
-\r
- //\r
- // Clean the arp servicebinding context data and free the memory allocated.\r
- //\r
- ArpCleanService (ArpService);\r
-\r
- FreePool (ArpService);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Creates a child handle and installs a protocol.\r
-\r
- The CreateChild() function installs a protocol on ChildHandle.\r
- If ChildHandle is a pointer to NULL, then a new handle is created and returned\r
- in ChildHandle. If ChildHandle is not a pointer to NULL, then the protocol\r
- installs on the existing ChildHandle.\r
-\r
- @param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r
- @param ChildHandle Pointer to the handle of the child to create. If it is NULL,\r
- then a new handle is created. If it is a pointer to an existing\r
- UEFI handle, then the protocol is added to the existing UEFI handle.\r
-\r
- @retval EFI_SUCCES The protocol was added to ChildHandle.\r
- @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r
- @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create\r
- the child\r
- @retval other The child handle was not created\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpServiceBindingCreateChild (\r
- IN EFI_SERVICE_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE *ChildHandle\r
- )\r
-{\r
- EFI_STATUS Status;\r
- ARP_SERVICE_DATA *ArpService;\r
- ARP_INSTANCE_DATA *Instance;\r
- VOID *Mnp;\r
- EFI_TPL OldTpl;\r
-\r
- if ((This == NULL) || (ChildHandle == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- ArpService = ARP_SERVICE_DATA_FROM_THIS (This);\r
-\r
- //\r
- // Allocate memory for the instance context data.\r
- //\r
- Instance = AllocateZeroPool (sizeof(ARP_INSTANCE_DATA));\r
- if (Instance == NULL) {\r
- DEBUG ((EFI_D_ERROR, "ArpSBCreateChild: Failed to allocate memory for Instance.\n"));\r
-\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- //\r
- // Init the instance context data.\r
- //\r
- ArpInitInstance (ArpService, Instance);\r
-\r
- //\r
- // Install the ARP protocol onto the ChildHandle.\r
- //\r
- Status = gBS->InstallMultipleProtocolInterfaces (\r
- ChildHandle,\r
- &gEfiArpProtocolGuid,\r
- (VOID *)&Instance->ArpProto,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "ArpSBCreateChild: faild to install ARP protocol, %r.\n", Status));\r
-\r
- FreePool (Instance);\r
- return Status;\r
- }\r
-\r
- //\r
- // Save the ChildHandle.\r
- //\r
- Instance->Handle = *ChildHandle;\r
-\r
- //\r
- // Open the Managed Network protocol BY_CHILD.\r
- //\r
- Status = gBS->OpenProtocol (\r
- ArpService->MnpChildHandle,\r
- &gEfiManagedNetworkProtocolGuid,\r
- (VOID **) &Mnp,\r
- gArpDriverBinding.DriverBindingHandle,\r
- Instance->Handle,\r
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto ERROR;\r
- }\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- //\r
- // Insert the instance into children list managed by the arp service context data.\r
- //\r
- InsertTailList (&ArpService->ChildrenList, &Instance->List);\r
- ArpService->ChildrenNumber++;\r
-\r
- gBS->RestoreTPL (OldTpl);\r
-\r
-ERROR:\r
-\r
- if (EFI_ERROR (Status)) {\r
-\r
- gBS->CloseProtocol (\r
- ArpService->MnpChildHandle,\r
- &gEfiManagedNetworkProtocolGuid,\r
- gArpDriverBinding.DriverBindingHandle,\r
- Instance->Handle\r
- );\r
-\r
- gBS->UninstallMultipleProtocolInterfaces (\r
- Instance->Handle,\r
- &gEfiArpProtocolGuid,\r
- &Instance->ArpProto,\r
- NULL\r
- );\r
-\r
- //\r
- // Free the allocated memory.\r
- //\r
- FreePool (Instance);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-\r
-/**\r
- Destroys a child handle with a protocol installed on it.\r
-\r
- The DestroyChild() function does the opposite of CreateChild(). It removes a protocol\r
- that was installed by CreateChild() from ChildHandle. If the removed protocol is the\r
- last protocol on ChildHandle, then ChildHandle is destroyed.\r
-\r
- @param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r
- @param ChildHandle Handle of the child to destroy\r
-\r
- @retval EFI_SUCCES The protocol was removed from ChildHandle.\r
- @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is\r
- being removed.\r
- @retval EFI_INVALID_PARAMETER Child handle is NULL.\r
- @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle\r
- because its services are being used.\r
- @retval other The child handle was not destroyed\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpServiceBindingDestroyChild (\r
- IN EFI_SERVICE_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE ChildHandle\r
- )\r
-{\r
- EFI_STATUS Status;\r
- ARP_SERVICE_DATA *ArpService;\r
- ARP_INSTANCE_DATA *Instance;\r
- EFI_ARP_PROTOCOL *Arp;\r
- EFI_TPL OldTpl;\r
-\r
- if ((This == NULL) || (ChildHandle == NULL)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- ArpService = ARP_SERVICE_DATA_FROM_THIS (This);\r
-\r
- //\r
- // Get the arp protocol.\r
- //\r
- Status = gBS->OpenProtocol (\r
- ChildHandle,\r
- &gEfiArpProtocolGuid,\r
- (VOID **)&Arp,\r
- ArpService->ImageHandle,\r
- ChildHandle,\r
- EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Instance = ARP_INSTANCE_DATA_FROM_THIS (Arp);\r
-\r
- if (Instance->InDestroy) {\r
- return EFI_SUCCESS;\r
- }\r
-\r
- //\r
- // Use the InDestroy as a flag to avoid re-entrance.\r
- //\r
- Instance->InDestroy = TRUE;\r
-\r
- //\r
- // Close the Managed Network protocol.\r
- //\r
- gBS->CloseProtocol (\r
- ArpService->MnpChildHandle,\r
- &gEfiManagedNetworkProtocolGuid,\r
- gArpDriverBinding.DriverBindingHandle,\r
- ChildHandle\r
- );\r
-\r
- //\r
- // Uninstall the ARP protocol.\r
- //\r
- Status = gBS->UninstallMultipleProtocolInterfaces (\r
- ChildHandle,\r
- &gEfiArpProtocolGuid,\r
- &Instance->ArpProto,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "ArpSBDestroyChild: Failed to uninstall the arp protocol, %r.\n",\r
- Status));\r
-\r
- Instance->InDestroy = FALSE;\r
- return Status;\r
- }\r
-\r
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
-\r
- if (Instance->Configured) {\r
- //\r
- // Delete the related cache entry.\r
- //\r
- ArpDeleteCacheEntry (Instance, FALSE, NULL, TRUE);\r
-\r
- //\r
- // Reset the instance configuration.\r
- //\r
- ArpConfigureInstance (Instance, NULL);\r
- }\r
-\r
- //\r
- // Remove this instance from the ChildrenList.\r
- //\r
- RemoveEntryList (&Instance->List);\r
- ArpService->ChildrenNumber--;\r
-\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- FreePool (Instance);\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- The entry point for Arp driver which installs the driver binding and component name\r
- protocol on its ImageHandle.\r
-\r
- @param[in] ImageHandle The image handle of the driver.\r
- @param[in] SystemTable The system table.\r
-\r
- @retval EFI_SUCCESS if the driver binding and component name protocols\r
- are successfully\r
- @retval Others Failed to install the protocols.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-ArpDriverEntryPoint (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- )\r
-{\r
- return EfiLibInstallDriverBindingComponentName2 (\r
- ImageHandle,\r
- SystemTable,\r
- &gArpDriverBinding,\r
- ImageHandle,\r
- &gArpComponentName,\r
- &gArpComponentName2\r
- );\r
-}\r
-\r
projects / mirror_edk2.git / blobdiff