diff options
Diffstat (limited to 'NetworkPkg/Udp6Dxe/Udp6Driver.c')
| -rw-r--r-- | NetworkPkg/Udp6Dxe/Udp6Driver.c | 556 |
1 files changed, 556 insertions, 0 deletions
diff --git a/NetworkPkg/Udp6Dxe/Udp6Driver.c b/NetworkPkg/Udp6Dxe/Udp6Driver.c new file mode 100644 index 0000000000..1cfd5f1b4d --- /dev/null +++ b/NetworkPkg/Udp6Dxe/Udp6Driver.c @@ -0,0 +1,556 @@ +/** @file
+ Driver Binding functions and Service Binding functions for the Network driver module.
+
+ Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+
+ 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.
+
+**/
+
+#include "Udp6Impl.h"
+
+EFI_DRIVER_BINDING_PROTOCOL gUdp6DriverBinding = {
+ Udp6DriverBindingSupported,
+ Udp6DriverBindingStart,
+ Udp6DriverBindingStop,
+ 0xa,
+ NULL,
+ NULL
+};
+
+EFI_SERVICE_BINDING_PROTOCOL mUdp6ServiceBinding = {
+ Udp6ServiceBindingCreateChild,
+ Udp6ServiceBindingDestroyChild
+};
+
+/**
+ Tests to see if this driver supports a given controller. If a child device is provided,
+ it further tests to see if this driver supports creating a handle for the specified child device.
+
+ This function checks to see if the driver specified by This supports the device specified by
+ ControllerHandle. Drivers will typically use the device path attached to
+ ControllerHandle and/or the services from the bus I/O abstraction attached to
+ ControllerHandle to determine if the driver supports ControllerHandle. This function
+ may be called many times during platform initialization. In order to reduce boot times, the tests
+ performed by this function must be very small, and take as little time as possible to execute. This
+ function must not change the state of any hardware devices, and this function must be aware that the
+ device specified by ControllerHandle may already be managed by the same driver or a
+ different driver. This function must match its calls to AllocatePages() with FreePages(),
+ AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
+ Because ControllerHandle may have been previously started by the same driver, if a protocol is
+ already in the opened state, then it must not be closed with CloseProtocol(). This is required
+ to guarantee the state of ControllerHandle is not modified by this function.
+
+ @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
+ @param[in] ControllerHandle The handle of the controller to test. This handle
+ must support a protocol interface that supplies
+ an I/O abstraction to the driver.
+ @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
+ parameter is ignored by device drivers, and is optional for bus
+ drivers. For bus drivers, if this parameter is not NULL, then
+ the bus driver must determine if the bus controller specified
+ by ControllerHandle and the child controller specified
+ by RemainingDevicePath are both supported by this
+ bus driver.
+
+ @retval EFI_SUCCESS The device specified by ControllerHandle and
+ RemainingDevicePath is supported by the driver specified by This.
+ @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
+ RemainingDevicePath is already being managed by the driver
+ specified by This.
+ @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
+ RemainingDevicePath is already being managed by a different
+ driver or an application that requires exclusive access.
+ Currently not implemented.
+ @retval EFI_UNSUPPORTED The device specified by ControllerHandle and
+ RemainingDevicePath is not supported by the driver specified by This.
+**/
+EFI_STATUS
+EFIAPI
+Udp6DriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ //
+ // Test for the Udp6ServiceBinding Protocol
+ //
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiUdp6ServiceBindingProtocolGuid,
+ NULL,
+ This->DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_TEST_PROTOCOL
+ );
+ if (!EFI_ERROR (Status)) {
+ return EFI_ALREADY_STARTED;
+ }
+ //
+ // Test for the Ip6ServiceBinding Protocol
+ //
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiIp6ServiceBindingProtocolGuid,
+ NULL,
+ This->DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_TEST_PROTOCOL
+ );
+
+ return Status;
+}
+
+/**
+ Start this driver on ControllerHandle.
+
+ This service is called by the EFI boot service ConnectController(). In order to make
+ drivers as small as possible, there are a few calling restrictions for
+ this service. ConnectController() must follow these
+ calling restrictions. If any other agent wishes to call Start() it
+ must also follow these calling restrictions.
+
+ @param[in] This Protocol instance pointer.
+ @param[in] ControllerHandle Handle of device to bind the driver to.
+ @param[in] RemainingDevicePath Optional parameter use to pick a specific child
+ device to start.
+
+ @retval EFI_SUCCES This driver is added to ControllerHandle.
+ @retval EFI_OUT_OF_RESOURCES The required system resource can't be allocated.
+ @retval other This driver does not support this device.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6DriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ UDP6_SERVICE_DATA *Udp6Service;
+
+ //
+ // Allocate Private Context Data Structure.
+ //
+ Udp6Service = AllocateZeroPool (sizeof (UDP6_SERVICE_DATA));
+ if (Udp6Service == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto EXIT;
+ }
+
+ Status = Udp6CreateService (Udp6Service, This->DriverBindingHandle, ControllerHandle);
+ if (EFI_ERROR (Status)) {
+ goto EXIT;
+ }
+
+ //
+ // Install the Udp6ServiceBindingProtocol on the ControllerHandle.
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &ControllerHandle,
+ &gEfiUdp6ServiceBindingProtocolGuid,
+ &Udp6Service->ServiceBinding,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ Udp6CleanService (Udp6Service);
+ goto EXIT;
+ } else {
+ Status = Udp6SetVariableData (Udp6Service);
+ }
+
+EXIT:
+ if (EFI_ERROR (Status)) {
+ if (Udp6Service != NULL) {
+ FreePool (Udp6Service);
+ }
+ }
+ return Status;
+}
+
+/**
+ Stop this driver on ControllerHandle.
+
+ This service is called by the EFI boot service DisconnectController(). In order to
+ make drivers as small as possible, there are a few calling
+ restrictions for this service. DisconnectController()
+ must follow these calling restrictions. If any other agent wishes
+ to call Stop(), it must also follow these calling restrictions.
+
+ @param[in] This Protocol instance pointer.
+ @param[in] ControllerHandle Handle of device to stop the driver on.
+ @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If the number
+ of children is zero stop the entire bus driver.
+ @param[in] ChildHandleBuffer List of Child Handles to Stop. It is optional.
+
+ @retval EFI_SUCCES This driver is removed ControllerHandle.
+ @retval EFI_DEVICE_ERROR Can't find the NicHandle from the ControllerHandle and specified GUID.
+ @retval other This driver was not removed from this device.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6DriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE NicHandle;
+ EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
+ UDP6_SERVICE_DATA *Udp6Service;
+ UDP6_INSTANCE_DATA *Instance;
+
+ //
+ // Find the NicHandle where UDP6 ServiceBinding Protocol is installed.
+ //
+ NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiIp6ProtocolGuid);
+ if (NicHandle == NULL) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
+ // Retrieve the UDP6 ServiceBinding Protocol.
+ //
+ Status = gBS->OpenProtocol (
+ NicHandle,
+ &gEfiUdp6ServiceBindingProtocolGuid,
+ (VOID **) &ServiceBinding,
+ This->DriverBindingHandle,
+ NicHandle,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ Udp6Service = UDP6_SERVICE_DATA_FROM_THIS (ServiceBinding);
+
+ if (NumberOfChildren == 0) {
+
+ gBS->UninstallMultipleProtocolInterfaces (
+ NicHandle,
+ &gEfiUdp6ServiceBindingProtocolGuid,
+ &Udp6Service->ServiceBinding,
+ NULL
+ );
+
+ Udp6ClearVariableData (Udp6Service);
+
+ Udp6CleanService (Udp6Service);
+
+ FreePool (Udp6Service);
+ } else {
+
+ while (!IsListEmpty (&Udp6Service->ChildrenList)) {
+ Instance = NET_LIST_HEAD (&Udp6Service->ChildrenList, UDP6_INSTANCE_DATA, Link);
+
+ Status = ServiceBinding->DestroyChild (ServiceBinding, Instance->ChildHandle);
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Creates a child handle and installs a protocol.
+
+ The CreateChild() function installs a protocol on ChildHandle.
+ If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.
+ If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.
+
+ @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
+ @param[in, out] ChildHandle Pointer to the handle of the child to create. If it is NULL,
+ then a new handle is created. If it is a pointer to an existing UEFI handle,
+ then the protocol is added to the existing UEFI handle.
+
+ @retval EFI_SUCCES The protocol was added to ChildHandle.
+ @retval EFI_INVALID_PARAMETER This is NULL or ChildHandle is NULL.
+ @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
+Udp6ServiceBindingCreateChild (
+ IN EFI_SERVICE_BINDING_PROTOCOL *This,
+ IN OUT EFI_HANDLE *ChildHandle
+ )
+{
+ EFI_STATUS Status;
+ UDP6_SERVICE_DATA *Udp6Service;
+ UDP6_INSTANCE_DATA *Instance;
+ EFI_TPL OldTpl;
+ VOID *Ip6;
+
+ if ((This == NULL) || (ChildHandle == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Udp6Service = UDP6_SERVICE_DATA_FROM_THIS (This);
+
+ //
+ // Allocate the instance private data structure.
+ //
+ Instance = AllocateZeroPool (sizeof (UDP6_INSTANCE_DATA));
+ if (Instance == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Udp6InitInstance (Udp6Service, Instance);
+
+ //
+ // Add an IpInfo for this instance.
+ //
+ Instance->IpInfo = IpIoAddIp (Udp6Service->IpIo);
+ if (Instance->IpInfo == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto ON_ERROR;
+ }
+
+ //
+ // Install the Udp6Protocol for this instance.
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ ChildHandle,
+ &gEfiUdp6ProtocolGuid,
+ &Instance->Udp6Proto,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ Instance->ChildHandle = *ChildHandle;
+
+ //
+ // Open the default Ip6 protocol in the IP_IO BY_CHILD.
+ //
+ Status = gBS->OpenProtocol (
+ Udp6Service->IpIo->ChildHandle,
+ &gEfiIp6ProtocolGuid,
+ (VOID **) &Ip6,
+ gUdp6DriverBinding.DriverBindingHandle,
+ Instance->ChildHandle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ //
+ // Link this instance into the service context data and increase the ChildrenNumber.
+ //
+ InsertTailList (&Udp6Service->ChildrenList, &Instance->Link);
+ Udp6Service->ChildrenNumber++;
+
+ gBS->RestoreTPL (OldTpl);
+
+ return EFI_SUCCESS;
+
+ON_ERROR:
+
+ if (Instance->ChildHandle != NULL) {
+ gBS->UninstallMultipleProtocolInterfaces (
+ Instance->ChildHandle,
+ &gEfiUdp6ProtocolGuid,
+ &Instance->Udp6Proto,
+ NULL
+ );
+ }
+
+ if (Instance->IpInfo != NULL) {
+ IpIoRemoveIp (Udp6Service->IpIo, Instance->IpInfo);
+ }
+
+ Udp6CleanInstance (Instance);
+
+ FreePool (Instance);
+
+ return Status;
+}
+
+/**
+ Destroys a child handle with a set of I/O services.
+ 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 Protocol instance pointer.
+ @param[in] 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
+Udp6ServiceBindingDestroyChild (
+ IN EFI_SERVICE_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ChildHandle
+ )
+{
+ EFI_STATUS Status;
+ UDP6_SERVICE_DATA *Udp6Service;
+ EFI_UDP6_PROTOCOL *Udp6Proto;
+ UDP6_INSTANCE_DATA *Instance;
+ EFI_TPL OldTpl;
+
+ if ((This == NULL) || (ChildHandle == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Udp6Service = UDP6_SERVICE_DATA_FROM_THIS (This);
+
+ //
+ // Try to get the Udp6 protocol from the ChildHandle.
+ //
+ Status = gBS->OpenProtocol (
+ ChildHandle,
+ &gEfiUdp6ProtocolGuid,
+ (VOID **) &Udp6Proto,
+ gUdp6DriverBinding.DriverBindingHandle,
+ ChildHandle,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Instance = UDP6_INSTANCE_DATA_FROM_THIS (Udp6Proto);
+
+ if (Instance->Destroyed) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Use the Destroyed flag to avoid the re-entering of the following code.
+ //
+ Instance->Destroyed = TRUE;
+
+ //
+ // Close the Ip6 protocol.
+ //
+ gBS->CloseProtocol (
+ Udp6Service->IpIo->ChildHandle,
+ &gEfiIp6ProtocolGuid,
+ gUdp6DriverBinding.DriverBindingHandle,
+ Instance->ChildHandle
+ );
+
+ //
+ // Uninstall the Udp6Protocol previously installed on the ChildHandle.
+ //
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ ChildHandle,
+ &gEfiUdp6ProtocolGuid,
+ (VOID *) &Instance->Udp6Proto,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ Instance->Destroyed = FALSE;
+ return Status;
+ }
+
+ //
+ // Reset the configuration in case the instance's consumer forgets to do this.
+ //
+ Udp6Proto->Configure (Udp6Proto, NULL);
+
+ //
+ // Remove the IpInfo this instance consumes.
+ //
+ IpIoRemoveIp (Udp6Service->IpIo, Instance->IpInfo);
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ //
+ // Remove this instance from the service context data's ChildrenList.
+ //
+ RemoveEntryList (&Instance->Link);
+ Udp6Service->ChildrenNumber--;
+
+ //
+ // Clean the instance.
+ //
+ Udp6CleanInstance (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 Udp6 driver that 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
+Udp6DriverEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Install the Udp6DriverBinding and Udp6ComponentName protocols.
+ //
+
+ Status = EfiLibInstallDriverBindingComponentName2 (
+ ImageHandle,
+ SystemTable,
+ &gUdp6DriverBinding,
+ ImageHandle,
+ &gUdp6ComponentName,
+ &gUdp6ComponentName2
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // Initialize the UDP random port.
+ //
+ mUdp6RandomPort = (UINT16)(
+ ((UINT16) NetRandomInitSeed ()) %
+ UDP6_PORT_KNOWN +
+ UDP6_PORT_KNOWN
+ );
+ }
+
+ return Status;
+}
+
+
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