audk/MdeModulePkg/Universal/Network/ArpDxe/ArpDriver.c

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/** @file
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
ArpDriver.c
Abstract:
**/
#include "ArpDriver.h"
#include "ArpImpl.h"
EFI_DRIVER_BINDING_PROTOCOL gArpDriverBinding = {
ArpDriverBindingSupported,
ArpDriverBindingStart,
ArpDriverBindingStop,
0xa,
NULL,
NULL
};
/**
Create and initialize the arp service context data.
@param ImageHandle The image handle representing the loaded driver
image.
@param ControllerHandle The controller handle the driver binds to.
@param ArpService Pointer to the buffer containing the arp service
context data.
@retval EFI_SUCCESS The arp service context is initialized.
@retval other Failed to initialize the arp service context.
**/
EFI_STATUS
ArpCreateService (
IN EFI_HANDLE ImageHandle,
IN EFI_HANDLE ControllerHandle,
IN ARP_SERVICE_DATA *ArpService
)
{
EFI_STATUS Status;
ASSERT (ArpService != NULL);
ArpService->Signature = ARP_SERVICE_DATA_SIGNATURE;
//
// Init the servicebinding protocol members.
//
ArpService->ServiceBinding.CreateChild = ArpServiceBindingCreateChild;
ArpService->ServiceBinding.DestroyChild = ArpServiceBindingDestroyChild;
//
// Save the handles.
//
ArpService->ImageHandle = ImageHandle;
ArpService->ControllerHandle = ControllerHandle;
//
// Create a MNP child instance.
//
Status = NetLibCreateServiceChild (
ControllerHandle,
ImageHandle,
&gEfiManagedNetworkServiceBindingProtocolGuid,
&ArpService->MnpChildHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Open the MNP protocol.
//
Status = gBS->OpenProtocol (
ArpService->MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
(VOID **)&ArpService->Mnp,
ImageHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
goto ERROR_EXIT;
}
//
// Get the underlayer Snp mode data.
//
Status = ArpService->Mnp->GetModeData (ArpService->Mnp, NULL, &ArpService->SnpMode);
if ((Status != EFI_NOT_STARTED) && EFI_ERROR (Status)) {
goto ERROR_EXIT;
}
if (ArpService->SnpMode.IfType != NET_IFTYPE_ETHERNET) {
//
// Only support the ethernet.
//
Status = EFI_UNSUPPORTED;
goto ERROR_EXIT;
}
//
// Set the Mnp config parameters.
//
ArpService->MnpConfigData.ReceivedQueueTimeoutValue = 0;
ArpService->MnpConfigData.TransmitQueueTimeoutValue = 0;
ArpService->MnpConfigData.ProtocolTypeFilter = ARP_ETHER_PROTO_TYPE;
ArpService->MnpConfigData.EnableUnicastReceive = TRUE;
ArpService->MnpConfigData.EnableMulticastReceive = FALSE;
ArpService->MnpConfigData.EnableBroadcastReceive = TRUE;
ArpService->MnpConfigData.EnablePromiscuousReceive = FALSE;
ArpService->MnpConfigData.FlushQueuesOnReset = TRUE;
ArpService->MnpConfigData.EnableReceiveTimestamps = FALSE;
ArpService->MnpConfigData.DisableBackgroundPolling = FALSE;
//
// Configure the Mnp child.
//
Status = ArpService->Mnp->Configure (ArpService->Mnp, &ArpService->MnpConfigData);
if (EFI_ERROR (Status)) {
goto ERROR_EXIT;
}
//
// Create the event used in the RxToken.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
ArpOnFrameRcvd,
ArpService,
&ArpService->RxToken.Event
);
if (EFI_ERROR (Status)) {
goto ERROR_EXIT;
}
//
// Create the Arp heartbeat timer.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL | EVT_TIMER,
TPL_CALLBACK,
ArpTimerHandler,
ArpService,
&ArpService->PeriodicTimer
);
if (EFI_ERROR (Status)) {
goto ERROR_EXIT;
}
//
// Start the heartbeat timer.
//
Status = gBS->SetTimer (
ArpService->PeriodicTimer,
TimerPeriodic,
ARP_PERIODIC_TIMER_INTERVAL
);
if (EFI_ERROR (Status)) {
goto ERROR_EXIT;
}
//
// Init the lists.
//
InitializeListHead (&ArpService->ChildrenList);
InitializeListHead (&ArpService->PendingRequestTable);
InitializeListHead (&ArpService->DeniedCacheTable);
InitializeListHead (&ArpService->ResolvedCacheTable);
ERROR_EXIT:
return Status;
}
/**
Clean the arp service context data.
@param ArpService Pointer to the buffer containing the arp service
context data.
@return None.
**/
VOID
ArpCleanService (
IN ARP_SERVICE_DATA *ArpService
)
{
NET_CHECK_SIGNATURE (ArpService, ARP_SERVICE_DATA_SIGNATURE);
if (ArpService->PeriodicTimer != NULL) {
//
// Cancle and close the PeriodicTimer.
//
gBS->SetTimer (ArpService->PeriodicTimer, TimerCancel, 0);
gBS->CloseEvent (ArpService->PeriodicTimer);
}
if (ArpService->RxToken.Event != NULL) {
//
// Cancle the RxToken and close the event in the RxToken.
//
ArpService->Mnp->Cancel (ArpService->Mnp, NULL);
gBS->CloseEvent (ArpService->RxToken.Event);
}
if (ArpService->Mnp != NULL) {
//
// Reset the Mnp child and close the Mnp protocol.
//
ArpService->Mnp->Configure (ArpService->Mnp, NULL);
gBS->CloseProtocol (
ArpService->MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
ArpService->ImageHandle,
ArpService->ControllerHandle
);
}
if (ArpService->MnpChildHandle != NULL) {
//
// Destroy the mnp child.
//
NetLibDestroyServiceChild(
ArpService->ControllerHandle,
ArpService->ImageHandle,
&gEfiManagedNetworkServiceBindingProtocolGuid,
ArpService->MnpChildHandle
);
}
}
/**
Test to see if this driver supports ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCES This driver supports this device
@retval EFI_ALREADY_STARTED This driver is already running on this device.
@retval other This driver does not support this device.
**/
EFI_STATUS
EFIAPI
ArpDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
EFI_STATUS Status;
//
// Test to see if Arp SB is already installed.
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiArpServiceBindingProtocolGuid,
NULL,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (Status == EFI_SUCCESS) {
return EFI_ALREADY_STARTED;
}
//
// Test to see if MNP SB is installed.
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiManagedNetworkServiceBindingProtocolGuid,
NULL,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
return Status;
}
/**
Start this driver on ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCES This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
ArpDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
EFI_STATUS Status;
ARP_SERVICE_DATA *ArpService;
//
// Allocate a zero pool for ArpService.
//
ArpService = AllocateZeroPool (sizeof(ARP_SERVICE_DATA));
if (ArpService == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Initialize the arp service context data.
//
Status = ArpCreateService (This->DriverBindingHandle, ControllerHandle, ArpService);
if (EFI_ERROR (Status)) {
goto ERROR;
}
//
// Install the ARP service binding protocol.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
&gEfiArpServiceBindingProtocolGuid,
&ArpService->ServiceBinding,
NULL
);
if (EFI_ERROR (Status)) {
goto ERROR;
}
//
// OK, start to receive arp packets from Mnp.
//
Status = ArpService->Mnp->Receive (ArpService->Mnp, &ArpService->RxToken);
if (EFI_ERROR (Status)) {
goto ERROR;
}
return Status;
ERROR:
//
// On error, clean the arp service context data, and free the memory allocated.
//
ArpCleanService (ArpService);
gBS->FreePool (ArpService);
return Status;
}
/**
Stop this driver on ControllerHandle.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number
of children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCES This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
ArpDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_HANDLE NicHandle;
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
ARP_SERVICE_DATA *ArpService;
ARP_INSTANCE_DATA *Instance;
//
// Get the NicHandle which the arp servicebinding is installed on.
//
NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiManagedNetworkProtocolGuid);
if (NicHandle == NULL) {
return EFI_DEVICE_ERROR;
}
//
// Try to get the arp servicebinding protocol on the NicHandle.
//
Status = gBS->OpenProtocol (
NicHandle,
&gEfiArpServiceBindingProtocolGuid,
(VOID **)&ServiceBinding,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "ArpDriverBindingStop: Open ArpSb failed, %r.\n", Status));
return EFI_DEVICE_ERROR;
}
ArpService = ARP_SERVICE_DATA_FROM_THIS (ServiceBinding);
if (NumberOfChildren == 0) {
//
// Uninstall the ARP ServiceBinding protocol.
//
gBS->UninstallMultipleProtocolInterfaces (
NicHandle,
&gEfiArpServiceBindingProtocolGuid,
&ArpService->ServiceBinding,
NULL
);
//
// Clean the arp servicebinding context data and free the memory allocated.
//
ArpCleanService (ArpService);
gBS->FreePool (ArpService);
} else {
while (!IsListEmpty (&ArpService->ChildrenList)) {
Instance = NET_LIST_HEAD (&ArpService->ChildrenList, ARP_INSTANCE_DATA, List);
ServiceBinding->DestroyChild (ServiceBinding, Instance->Handle);
}
ASSERT (IsListEmpty (&ArpService->PendingRequestTable));
ASSERT (IsListEmpty (&ArpService->DeniedCacheTable));
ASSERT (IsListEmpty (&ArpService->ResolvedCacheTable));
}
return EFI_SUCCESS;
}
/**
Creates a child handle with a set of I/O services.
@param This Protocol instance pointer.
@param ChildHandle Pointer to the handle of the child to create. If
it is NULL, then a new handle is created. If it is
not NULL, then the I/O services are added to the
existing child handle.
@retval EFI_SUCCES The child handle was created with the I/O
services.
@retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create
the child.
@retval other The child handle was not created.
**/
EFI_STATUS
EFIAPI
ArpServiceBindingCreateChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle
)
{
EFI_STATUS Status;
ARP_SERVICE_DATA *ArpService;
ARP_INSTANCE_DATA *Instance;
VOID *Mnp;
EFI_TPL OldTpl;
if ((This == NULL) || (ChildHandle == NULL)) {
return EFI_INVALID_PARAMETER;
}
ArpService = ARP_SERVICE_DATA_FROM_THIS (This);
//
// Allocate memory for the instance context data.
//
Instance = AllocateZeroPool (sizeof(ARP_INSTANCE_DATA));
if (Instance == NULL) {
DEBUG ((EFI_D_ERROR, "ArpSBCreateChild: Failed to allocate memory for Instance.\n"));
return EFI_OUT_OF_RESOURCES;
}
//
// Init the instance context data.
//
ArpInitInstance (ArpService, Instance);
//
// Install the ARP protocol onto the ChildHandle.
//
Status = gBS->InstallMultipleProtocolInterfaces (
ChildHandle,
&gEfiArpProtocolGuid,
(VOID *)&Instance->ArpProto,
NULL
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "ArpSBCreateChild: faild to install ARP protocol, %r.\n", Status));
gBS->FreePool (Instance);
return Status;
}
//
// Save the ChildHandle.
//
Instance->Handle = *ChildHandle;
//
// Open the Managed Network protocol BY_CHILD.
//
Status = gBS->OpenProtocol (
ArpService->MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
(VOID **) &Mnp,
gArpDriverBinding.DriverBindingHandle,
Instance->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
if (EFI_ERROR (Status)) {
goto ERROR;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Insert the instance into children list managed by the arp service context data.
//
InsertTailList (&ArpService->ChildrenList, &Instance->List);
ArpService->ChildrenNumber++;
gBS->RestoreTPL (OldTpl);
ERROR:
if (EFI_ERROR (Status)) {
gBS->CloseProtocol (
ArpService->MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
gArpDriverBinding.DriverBindingHandle,
Instance->Handle
);
gBS->UninstallMultipleProtocolInterfaces (
Instance->Handle,
&gEfiArpProtocolGuid,
&Instance->ArpProto,
NULL
);
//
// Free the allocated memory.
//
gBS->FreePool (Instance);
}
return Status;
}
/**
Destroys a child handle with a set of I/O services.
@param This Protocol instance pointer.
@param ChildHandle Handle of the child to destroy.
@retval EFI_SUCCES The I/O services were removed from the child
handle.
@retval EFI_UNSUPPORTED The child handle does not support the I/O services
that are being removed.
@retval EFI_INVALID_PARAMETER Child handle is not a valid EFI Handle.
@retval EFI_ACCESS_DENIED The child handle could not be destroyed because
its I/O services are being used.
@retval other The child handle was not destroyed.
**/
EFI_STATUS
EFIAPI
ArpServiceBindingDestroyChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE ChildHandle
)
{
EFI_STATUS Status;
ARP_SERVICE_DATA *ArpService;
ARP_INSTANCE_DATA *Instance;
EFI_ARP_PROTOCOL *Arp;
EFI_TPL OldTpl;
if ((This == NULL) || (ChildHandle == NULL)) {
return EFI_INVALID_PARAMETER;
}
ArpService = ARP_SERVICE_DATA_FROM_THIS (This);
//
// Get the arp protocol.
//
Status = gBS->OpenProtocol (
ChildHandle,
&gEfiArpProtocolGuid,
(VOID **)&Arp,
ArpService->ImageHandle,
ChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
Instance = ARP_INSTANCE_DATA_FROM_THIS (Arp);
if (Instance->Destroyed) {
return EFI_SUCCESS;
}
//
// Use the Destroyed as a flag to avoid re-entrance.
//
Instance->Destroyed = TRUE;
//
// Close the Managed Network protocol.
//
gBS->CloseProtocol (
ArpService->MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
gArpDriverBinding.DriverBindingHandle,
ChildHandle
);
//
// Uninstall the ARP protocol.
//
Status = gBS->UninstallMultipleProtocolInterfaces (
ChildHandle,
&gEfiArpProtocolGuid,
&Instance->ArpProto,
NULL
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "ArpSBDestroyChild: Failed to uninstall the arp protocol, %r.\n",
Status));
Instance->Destroyed = FALSE;
return Status;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (Instance->Configured) {
//
// Delete the related cache entry.
//
ArpDeleteCacheEntry (Instance, FALSE, NULL, TRUE);
//
// Reset the instance configuration.
//
ArpConfigureInstance (Instance, NULL);
}
//
// Remove this instance from the ChildrenList.
//
RemoveEntryList (&Instance->List);
ArpService->ChildrenNumber--;
gBS->RestoreTPL (OldTpl);
gBS->FreePool (Instance);
return Status;
}
/**
The entry point for Arp driver which installs the driver binding and component name
protocol on its ImageHandle.
@param ImageHandle The image handle of the driver.
@param SystemTable The system table.
@retval EFI_SUCCES if the driver binding and component name protocols are successfully
@retval Others Failed to install the protocols.
**/
EFI_STATUS
EFIAPI
ArpDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
return EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gArpDriverBinding,
ImageHandle,
&gArpComponentName,
&gArpComponentName2
);
}