diff options
| author | Guo Mang <mang.guo@intel.com> | 2017-04-27 11:16:34 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-04-27 11:16:34 +0800 |
| commit | 098f8621634f1cbdd1253c9957eed09a505223f5 (patch) | |
| tree | 13783836f52f77e37b32fc982cd82a1ee5888676 /NetworkPkg/DnsDxe/DnsDriver.c | |
| parent | 9f72a84180605527643891f5c27b8f9f31c43006 (diff) | |
| download | edk2-platforms-098f8621634f1cbdd1253c9957eed09a505223f5.tar.xz | |
NetWorkPkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'NetworkPkg/DnsDxe/DnsDriver.c')
| -rw-r--r-- | NetworkPkg/DnsDxe/DnsDriver.c | 1552 |
1 files changed, 0 insertions, 1552 deletions
diff --git a/NetworkPkg/DnsDxe/DnsDriver.c b/NetworkPkg/DnsDxe/DnsDriver.c deleted file mode 100644 index 5dc9afe448..0000000000 --- a/NetworkPkg/DnsDxe/DnsDriver.c +++ /dev/null @@ -1,1552 +0,0 @@ -/** @file
-The driver binding and service binding protocol for DnsDxe driver.
-
-Copyright (c) 2015 - 2017, 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 "DnsImpl.h"
-
-EFI_DRIVER_BINDING_PROTOCOL gDns4DriverBinding = {
- Dns4DriverBindingSupported,
- Dns4DriverBindingStart,
- Dns4DriverBindingStop,
- DNS_VERSION,
- NULL,
- NULL
-};
-
-EFI_DRIVER_BINDING_PROTOCOL gDns6DriverBinding = {
- Dns6DriverBindingSupported,
- Dns6DriverBindingStart,
- Dns6DriverBindingStop,
- DNS_VERSION,
- NULL,
- NULL
-};
-
-EFI_SERVICE_BINDING_PROTOCOL mDns4ServiceBinding = {
- Dns4ServiceBindingCreateChild,
- Dns4ServiceBindingDestroyChild
-};
-
-EFI_SERVICE_BINDING_PROTOCOL mDns6ServiceBinding = {
- Dns6ServiceBindingCreateChild,
- Dns6ServiceBindingDestroyChild
-};
-
-DNS_DRIVER_DATA *mDriverData = NULL;
-
-/**
- Destroy the DNS instance and recycle the resources.
-
- @param[in] Instance The pointer to the DNS instance.
-
-**/
-VOID
-DnsDestroyInstance (
- IN DNS_INSTANCE *Instance
- )
-{
- ZeroMem (&Instance->Dns4CfgData, sizeof (EFI_DNS4_CONFIG_DATA));
-
- ZeroMem (&Instance->Dns6CfgData, sizeof (EFI_DNS6_CONFIG_DATA));
-
- if (!NetMapIsEmpty (&Instance->Dns4TxTokens)) {
- Dns4InstanceCancelToken (Instance, NULL);
- }
-
- if (!NetMapIsEmpty (&Instance->Dns6TxTokens)) {
- Dns6InstanceCancelToken (Instance, NULL);
- }
-
- if (Instance->UdpIo!= NULL) {
- UdpIoFreeIo (Instance->UdpIo);
- }
-
- FreePool (Instance);
-}
-
-/**
- Create the DNS instance and initialize it.
-
- @param[in] Service The pointer to the DNS service.
- @param[out] Instance The pointer to the DNS instance.
-
- @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
- @retval EFI_SUCCESS The DNS instance is created.
-
-**/
-EFI_STATUS
-DnsCreateInstance (
- IN DNS_SERVICE *Service,
- OUT DNS_INSTANCE **Instance
- )
-{
- DNS_INSTANCE *DnsIns;
-
- *Instance = NULL;
-
- DnsIns = AllocateZeroPool (sizeof (DNS_INSTANCE));
- if (DnsIns == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- DnsIns->Signature = DNS_INSTANCE_SIGNATURE;
- InitializeListHead (&DnsIns->Link);
- DnsIns->State = DNS_STATE_UNCONFIGED;
- DnsIns->InDestroy = FALSE;
- DnsIns->Service = Service;
-
- if (Service->IpVersion == IP_VERSION_4) {
- CopyMem (&DnsIns->Dns4, &mDns4Protocol, sizeof (DnsIns->Dns4));
- NetMapInit (&DnsIns->Dns4TxTokens);
- } else {
- CopyMem (&DnsIns->Dns6, &mDns6Protocol, sizeof (DnsIns->Dns6));
- NetMapInit (&DnsIns->Dns6TxTokens);
- }
-
- DnsIns->UdpIo = UdpIoCreateIo (
- Service->ControllerHandle, /// NicHandle
- Service->ImageHandle,
- DnsConfigNullUdp,
- Service->IpVersion,
- DnsIns
- );
- if (DnsIns->UdpIo == NULL) {
- FreePool (DnsIns);
- return EFI_OUT_OF_RESOURCES;
- }
-
- *Instance = DnsIns;
-
- return EFI_SUCCESS;
-}
-
-/**
- Callback function which provided by user to remove one node in NetDestroyLinkList process.
-
- @param[in] Entry The entry to be removed.
- @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.
-
- @retval EFI_SUCCESS The entry has been removed successfully.
- @retval Others Fail to remove the entry.
-
-**/
-EFI_STATUS
-EFIAPI
-DnsDestroyChildEntryInHandleBuffer (
- IN LIST_ENTRY *Entry,
- IN VOID *Context
- )
-{
- DNS_INSTANCE *Instance;
- EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
- UINTN NumberOfChildren;
- EFI_HANDLE *ChildHandleBuffer;
-
- if (Entry == NULL || Context == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Instance = NET_LIST_USER_STRUCT_S (Entry, DNS_INSTANCE, Link, DNS_INSTANCE_SIGNATURE);
- ServiceBinding = ((DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ServiceBinding;
- NumberOfChildren = ((DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->NumberOfChildren;
- ChildHandleBuffer = ((DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ChildHandleBuffer;
-
- if (!NetIsInHandleBuffer (Instance->ChildHandle, NumberOfChildren, ChildHandleBuffer)) {
- return EFI_SUCCESS;
- }
-
- return ServiceBinding->DestroyChild (ServiceBinding, Instance->ChildHandle);
-}
-
-/**
- Config a NULL UDP that is used to keep the connection between UDP and DNS.
-
- Just leave the Udp child unconfigured. When UDP is unloaded,
- DNS will be informed with DriverBinding Stop.
-
- @param UdpIo The UDP_IO to configure
- @param Context The opaque parameter to the callback
-
- @retval EFI_SUCCESS It always return EFI_SUCCESS directly.
-
-**/
-EFI_STATUS
-EFIAPI
-DnsConfigNullUdp (
- IN UDP_IO *UdpIo,
- IN VOID *Context
- )
-{
- return EFI_SUCCESS;
-}
-
-/**
- Release all the resource used the DNS service binding instance.
-
- @param DnsSb The Dns service binding instance.
-
-**/
-VOID
-DnsDestroyService (
- IN DNS_SERVICE *DnsSb
- )
-{
- UdpIoFreeIo (DnsSb->ConnectUdp);
-
- if (DnsSb->TimerToGetMap != NULL){
- gBS->CloseEvent (DnsSb->TimerToGetMap);
- }
-
- if (DnsSb->Timer != NULL){
- gBS->CloseEvent (DnsSb->Timer);
- }
-
- FreePool (DnsSb);
-}
-
-/**
- Create then initialize a Dns service binding instance.
-
- @param Controller The controller to install the DNS service
- binding on
- @param Image The driver binding image of the DNS driver
- @param IpVersion IpVersion for this service
- @param Service The variable to receive the created service
- binding instance.
-
- @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to create the instance.
- @retval EFI_DEVICE_ERROR Failed to create a NULL UDP port to keep
- connection with UDP.
- @retval EFI_SUCCESS The service instance is created for the
- controller.
-
-**/
-EFI_STATUS
-DnsCreateService (
- IN EFI_HANDLE Controller,
- IN EFI_HANDLE Image,
- IN UINT8 IpVersion,
- OUT DNS_SERVICE **Service
- )
-{
- EFI_STATUS Status;
- DNS_SERVICE *DnsSb;
-
- Status = EFI_SUCCESS;
- DnsSb = NULL;
-
- *Service = NULL;
-
- DnsSb = AllocateZeroPool (sizeof (DNS_SERVICE));
- if (DnsSb == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- DnsSb->Signature = DNS_SERVICE_SIGNATURE;
-
- if (IpVersion == IP_VERSION_4) {
- DnsSb->ServiceBinding = mDns4ServiceBinding;
- } else {
- DnsSb->ServiceBinding = mDns6ServiceBinding;
- }
-
- DnsSb->Dns4ChildrenNum = 0;
- InitializeListHead (&DnsSb->Dns4ChildrenList);
-
- DnsSb->Dns6ChildrenNum = 0;
- InitializeListHead (&DnsSb->Dns6ChildrenList);
-
- DnsSb->ControllerHandle = Controller;
- DnsSb->ImageHandle = Image;
-
- DnsSb->TimerToGetMap = NULL;
-
- DnsSb->Timer = NULL;
-
- DnsSb->IpVersion = IpVersion;
-
- //
- // Create the timer used to time out the procedure which is used to
- // get the default IP address.
- //
- Status = gBS->CreateEvent (
- EVT_TIMER,
- TPL_CALLBACK,
- NULL,
- NULL,
- &DnsSb->TimerToGetMap
- );
- if (EFI_ERROR (Status)) {
- FreePool (DnsSb);
- return Status;
- }
-
- //
- // Create the timer to retransmit packets.
- //
- Status = gBS->CreateEvent (
- EVT_NOTIFY_SIGNAL | EVT_TIMER,
- TPL_CALLBACK,
- DnsOnTimerRetransmit,
- DnsSb,
- &DnsSb->Timer
- );
- if (EFI_ERROR (Status)) {
- if (DnsSb->TimerToGetMap != NULL) {
- gBS->CloseEvent (DnsSb->TimerToGetMap);
- }
- FreePool (DnsSb);
- return Status;
- }
-
- DnsSb->ConnectUdp = NULL;
- DnsSb->ConnectUdp = UdpIoCreateIo (
- Controller,
- Image,
- DnsConfigNullUdp,
- DnsSb->IpVersion,
- NULL
- );
- if (DnsSb->ConnectUdp == NULL) {
- if (DnsSb->TimerToGetMap != NULL) {
- gBS->CloseEvent (DnsSb->TimerToGetMap);
- }
- gBS->CloseEvent (DnsSb->Timer);
- FreePool (DnsSb);
- return EFI_DEVICE_ERROR;
- }
-
- *Service = DnsSb;
- return Status;
-}
-
-/**
- Unloads an image.
-
- @param ImageHandle Handle that identifies the image to be unloaded.
-
- @retval EFI_SUCCESS The image has been unloaded.
- @retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.
-
-**/
-EFI_STATUS
-EFIAPI
-DnsUnload (
- IN EFI_HANDLE ImageHandle
- )
-{
- EFI_STATUS Status;
-
- LIST_ENTRY *Entry;
- DNS4_CACHE *ItemCache4;
- DNS4_SERVER_IP *ItemServerIp4;
- DNS6_CACHE *ItemCache6;
- DNS6_SERVER_IP *ItemServerIp6;
-
- ItemCache4 = NULL;
- ItemServerIp4 = NULL;
- ItemCache6 = NULL;
- ItemServerIp6 = NULL;
-
- //
- // Disconnect the driver specified by ImageHandle
- //
- Status = NetLibDefaultUnload(ImageHandle);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Free mDriverData.
- //
- if (mDriverData != NULL) {
- if (mDriverData->Timer != NULL) {
- gBS->CloseEvent (mDriverData->Timer);
- }
-
- while (!IsListEmpty (&mDriverData->Dns4CacheList)) {
- Entry = NetListRemoveHead (&mDriverData->Dns4CacheList);
- ItemCache4 = NET_LIST_USER_STRUCT (Entry, DNS4_CACHE, AllCacheLink);
- if (ItemCache4->DnsCache.HostName != NULL) {
- FreePool (ItemCache4->DnsCache.HostName);
- }
- if (ItemCache4->DnsCache.IpAddress != NULL) {
- FreePool (ItemCache4->DnsCache.IpAddress);
- }
- FreePool (ItemCache4);
- }
-
- while (!IsListEmpty (&mDriverData->Dns4ServerList)) {
- Entry = NetListRemoveHead (&mDriverData->Dns4ServerList);
- ItemServerIp4 = NET_LIST_USER_STRUCT (Entry, DNS4_SERVER_IP, AllServerLink);
- FreePool (ItemServerIp4);
- }
-
- while (!IsListEmpty (&mDriverData->Dns6CacheList)) {
- Entry = NetListRemoveHead (&mDriverData->Dns6CacheList);
- ItemCache6 = NET_LIST_USER_STRUCT (Entry, DNS6_CACHE, AllCacheLink);
- if (ItemCache6->DnsCache.HostName != NULL) {
- FreePool (ItemCache6->DnsCache.HostName);
- }
- if (ItemCache6->DnsCache.IpAddress != NULL) {
- FreePool (ItemCache6->DnsCache.IpAddress);
- }
- FreePool (ItemCache6);
- }
-
- while (!IsListEmpty (&mDriverData->Dns6ServerList)) {
- Entry = NetListRemoveHead (&mDriverData->Dns6ServerList);
- ItemServerIp6 = NET_LIST_USER_STRUCT (Entry, DNS6_SERVER_IP, AllServerLink);
- FreePool (ItemServerIp6);
- }
-
- FreePool (mDriverData);
- }
-
- return Status;
-}
-
-/**
- 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.
-
- @param ImageHandle The firmware allocated handle for the UEFI image.
- @param SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS The operation completed successfully.
- @retval Others An unexpected error occurred.
-**/
-EFI_STATUS
-EFIAPI
-DnsDriverEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- Status = EFI_SUCCESS;
-
- //
- // Install the Dns4 Driver Binding Protocol.
- //
- Status = EfiLibInstallDriverBindingComponentName2 (
- ImageHandle,
- SystemTable,
- &gDns4DriverBinding,
- ImageHandle,
- &gDnsComponentName,
- &gDnsComponentName2
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Install the Dns6 Driver Binding Protocol.
- //
- Status = EfiLibInstallDriverBindingComponentName2 (
- ImageHandle,
- SystemTable,
- &gDns6DriverBinding,
- NULL,
- &gDnsComponentName,
- &gDnsComponentName2
- );
- if (EFI_ERROR (Status)) {
- goto Error1;
- }
-
- //
- // Create the driver data structures.
- //
- mDriverData = AllocateZeroPool (sizeof (DNS_DRIVER_DATA));
- if (mDriverData == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Error2;
- }
-
- //
- // Create the timer event to update DNS cache list.
- //
- Status = gBS->CreateEvent (
- EVT_NOTIFY_SIGNAL | EVT_TIMER,
- TPL_CALLBACK,
- DnsOnTimerUpdate,
- NULL,
- &mDriverData->Timer
- );
- if (EFI_ERROR (Status)) {
- goto Error3;
- }
-
- Status = gBS->SetTimer (mDriverData->Timer, TimerPeriodic, TICKS_PER_SECOND);
- if (EFI_ERROR (Status)) {
- goto Error4;
- }
-
- InitializeListHead (&mDriverData->Dns4CacheList);
- InitializeListHead (&mDriverData->Dns4ServerList);
- InitializeListHead (&mDriverData->Dns6CacheList);
- InitializeListHead (&mDriverData->Dns6ServerList);
-
- return Status;
-
- Error4:
- gBS->CloseEvent (mDriverData->Timer);
-
- Error3:
- FreePool (mDriverData);
-
- Error2:
- gBS->UninstallMultipleProtocolInterfaces (
- gDns6DriverBinding.DriverBindingHandle,
- &gEfiDriverBindingProtocolGuid,
- &gDns6DriverBinding,
- &gEfiComponentName2ProtocolGuid,
- &gDnsComponentName2,
- &gEfiComponentNameProtocolGuid,
- &gDnsComponentName,
- NULL
- );
-
- Error1:
- gBS->UninstallMultipleProtocolInterfaces (
- ImageHandle,
- &gEfiDriverBindingProtocolGuid,
- &gDns4DriverBinding,
- &gEfiComponentName2ProtocolGuid,
- &gDnsComponentName2,
- &gEfiComponentNameProtocolGuid,
- &gDnsComponentName,
- NULL
- );
-
- return Status;
-}
-
-/**
- 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
-Dns4DriverBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
- )
-{
- EFI_STATUS Status;
-
- //
- // Test for the Dns4ServiceBinding Protocol.
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiDns4ServiceBindingProtocolGuid,
- NULL,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
- if (!EFI_ERROR (Status)) {
- return EFI_ALREADY_STARTED;
- }
-
- //
- // Test for the Udp4ServiceBinding Protocol.
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiUdp4ServiceBindingProtocolGuid,
- NULL,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
-
- return Status;
-}
-
-/**
- Starts a device controller or a bus controller.
-
- The Start() function is designed to be invoked from the EFI boot service ConnectController().
- As a result, much of the error checking on the parameters to Start() has been moved into this
- common boot service. It is legal to call Start() from other locations,
- but the following calling restrictions must be followed, or the system behavior will not be deterministic.
- 1. ControllerHandle must be a valid EFI_HANDLE.
- 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
- EFI_DEVICE_PATH_PROTOCOL.
- 3. Prior to calling Start(), the Supported() function for the driver specified by This must
- have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
-
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param[in] ControllerHandle The handle of the controller to start. 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 a bus driver, if this parameter is NULL, then handles
- for all the children of Controller are created by this driver.
- If this parameter is not NULL and the first Device Path Node is
- not the End of Device Path Node, then only the handle for the
- child device specified by the first Device Path Node of
- RemainingDevicePath is created by this driver.
- If the first Device Path Node of RemainingDevicePath is
- the End of Device Path Node, no child handle is created by this
- driver.
-
- @retval EFI_SUCCESS The device was started.
- @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
- @retval Others The driver failded to start the device.
-
-**/
-EFI_STATUS
-EFIAPI
-Dns4DriverBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
- )
-{
- DNS_SERVICE *DnsSb;
- EFI_STATUS Status;
-
- Status = DnsCreateService (ControllerHandle, This->DriverBindingHandle, IP_VERSION_4, &DnsSb);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- ASSERT (DnsSb != NULL);
-
- Status = gBS->SetTimer (DnsSb->Timer, TimerPeriodic, TICKS_PER_SECOND);
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- //
- // Install the Dns4ServiceBinding Protocol onto ControllerHandle.
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &ControllerHandle,
- &gEfiDns4ServiceBindingProtocolGuid,
- &DnsSb->ServiceBinding,
- NULL
- );
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- return EFI_SUCCESS;
-
-ON_ERROR:
- DnsDestroyService (DnsSb);
-
- return Status;
-}
-
-/**
- Stops a device controller or a bus controller.
-
- The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
- As a result, much of the error checking on the parameters to Stop() has been moved
- into this common boot service. It is legal to call Stop() from other locations,
- but the following calling restrictions must be followed, or the system behavior will not be deterministic.
- 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
- same driver's Start() function.
- 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
- EFI_HANDLE. In addition, all of these handles must have been created in this driver's
- Start() function, and the Start() function must have called OpenProtocol() on
- ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
-
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param[in] ControllerHandle A handle to the device being stopped. The handle must
- support a bus specific I/O protocol for the driver
- to use to stop the device.
- @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
- @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
- if NumberOfChildren is 0.
-
- @retval EFI_SUCCESS The device was stopped.
- @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
-
-**/
-EFI_STATUS
-EFIAPI
-Dns4DriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
- )
-{
- EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
- DNS_SERVICE *DnsSb;
- EFI_HANDLE NicHandle;
- EFI_STATUS Status;
- LIST_ENTRY *List;
- DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;
-
- //
- // DNS driver opens UDP child, So, Controller is a UDP
- // child handle. Locate the Nic handle first. Then get the
- // DNS private data back.
- //
- NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp4ProtocolGuid);
-
- if (NicHandle == NULL) {
- return EFI_SUCCESS;
- }
-
- Status = gBS->OpenProtocol (
- NicHandle,
- &gEfiDns4ServiceBindingProtocolGuid,
- (VOID **) &ServiceBinding,
- This->DriverBindingHandle,
- NicHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- DnsSb = DNS_SERVICE_FROM_THIS (ServiceBinding);
-
- if (!IsListEmpty (&DnsSb->Dns4ChildrenList)) {
- //
- // Destroy the Dns child instance in ChildHandleBuffer.
- //
- List = &DnsSb->Dns4ChildrenList;
- Context.ServiceBinding = ServiceBinding;
- Context.NumberOfChildren = NumberOfChildren;
- Context.ChildHandleBuffer = ChildHandleBuffer;
- Status = NetDestroyLinkList (
- List,
- DnsDestroyChildEntryInHandleBuffer,
- &Context,
- NULL
- );
- }
-
- if (NumberOfChildren == 0 && IsListEmpty (&DnsSb->Dns4ChildrenList)) {
- gBS->UninstallProtocolInterface (
- NicHandle,
- &gEfiDns4ServiceBindingProtocolGuid,
- ServiceBinding
- );
-
- DnsDestroyService (DnsSb);
-
- if (gDnsControllerNameTable != NULL) {
- FreeUnicodeStringTable (gDnsControllerNameTable);
- gDnsControllerNameTable = NULL;
- }
-
- Status = EFI_SUCCESS;
- }
-
- return Status;
-}
-
-/**
- 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
-Dns6DriverBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
- )
-{
- EFI_STATUS Status;
-
- //
- // Test for the Dns6ServiceBinding Protocol
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiDns6ServiceBindingProtocolGuid,
- NULL,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
- if (!EFI_ERROR (Status)) {
- return EFI_ALREADY_STARTED;
- }
-
- //
- // Test for the Udp6ServiceBinding Protocol
- //
- Status = gBS->OpenProtocol (
- ControllerHandle,
- &gEfiUdp6ServiceBindingProtocolGuid,
- NULL,
- This->DriverBindingHandle,
- ControllerHandle,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
-
- return Status;
-}
-
-/**
- Starts a device controller or a bus controller.
-
- The Start() function is designed to be invoked from the EFI boot service ConnectController().
- As a result, much of the error checking on the parameters to Start() has been moved into this
- common boot service. It is legal to call Start() from other locations,
- but the following calling restrictions must be followed, or the system behavior will not be deterministic.
- 1. ControllerHandle must be a valid EFI_HANDLE.
- 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
- EFI_DEVICE_PATH_PROTOCOL.
- 3. Prior to calling Start(), the Supported() function for the driver specified by This must
- have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
-
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param[in] ControllerHandle The handle of the controller to start. 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 a bus driver, if this parameter is NULL, then handles
- for all the children of Controller are created by this driver.
- If this parameter is not NULL and the first Device Path Node is
- not the End of Device Path Node, then only the handle for the
- child device specified by the first Device Path Node of
- RemainingDevicePath is created by this driver.
- If the first Device Path Node of RemainingDevicePath is
- the End of Device Path Node, no child handle is created by this
- driver.
-
- @retval EFI_SUCCESS The device was started.
- @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
- @retval Others The driver failded to start the device.
-
-**/
-EFI_STATUS
-EFIAPI
-Dns6DriverBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
- )
-{
- DNS_SERVICE *DnsSb;
- EFI_STATUS Status;
-
- Status = DnsCreateService (ControllerHandle, This->DriverBindingHandle, IP_VERSION_6, &DnsSb);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- ASSERT (DnsSb != NULL);
-
- Status = gBS->SetTimer (DnsSb->Timer, TimerPeriodic, TICKS_PER_SECOND);
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- //
- // Install the Dns6ServiceBinding Protocol onto ControllerHandle
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &ControllerHandle,
- &gEfiDns6ServiceBindingProtocolGuid,
- &DnsSb->ServiceBinding,
- NULL
- );
-
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- return EFI_SUCCESS;
-
-ON_ERROR:
- DnsDestroyService (DnsSb);
-
- return Status;
-}
-
-/**
- Stops a device controller or a bus controller.
-
- The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
- As a result, much of the error checking on the parameters to Stop() has been moved
- into this common boot service. It is legal to call Stop() from other locations,
- but the following calling restrictions must be followed, or the system behavior will not be deterministic.
- 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
- same driver's Start() function.
- 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
- EFI_HANDLE. In addition, all of these handles must have been created in this driver's
- Start() function, and the Start() function must have called OpenProtocol() on
- ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
-
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param[in] ControllerHandle A handle to the device being stopped. The handle must
- support a bus specific I/O protocol for the driver
- to use to stop the device.
- @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
- @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
- if NumberOfChildren is 0.
-
- @retval EFI_SUCCESS The device was stopped.
- @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
-
-**/
-EFI_STATUS
-EFIAPI
-Dns6DriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
- )
-{
- EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
- DNS_SERVICE *DnsSb;
- EFI_HANDLE NicHandle;
- EFI_STATUS Status;
- LIST_ENTRY *List;
- DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;
-
- //
- // DNS driver opens UDP child, So, Controller is a UDP
- // child handle. Locate the Nic handle first. Then get the
- // DNS private data back.
- //
- NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp6ProtocolGuid);
-
- if (NicHandle == NULL) {
- return EFI_SUCCESS;
- }
-
- Status = gBS->OpenProtocol (
- NicHandle,
- &gEfiDns6ServiceBindingProtocolGuid,
- (VOID **) &ServiceBinding,
- This->DriverBindingHandle,
- NicHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- DnsSb = DNS_SERVICE_FROM_THIS (ServiceBinding);
-
- if (!IsListEmpty (&DnsSb->Dns6ChildrenList)) {
- //
- // Destroy the Dns child instance in ChildHandleBuffer.
- //
- List = &DnsSb->Dns6ChildrenList;
- Context.ServiceBinding = ServiceBinding;
- Context.NumberOfChildren = NumberOfChildren;
- Context.ChildHandleBuffer = ChildHandleBuffer;
- Status = NetDestroyLinkList (
- List,
- DnsDestroyChildEntryInHandleBuffer,
- &Context,
- NULL
- );
- }
-
- if (NumberOfChildren == 0 && IsListEmpty (&DnsSb->Dns6ChildrenList)) {
- gBS->UninstallProtocolInterface (
- NicHandle,
- &gEfiDns6ServiceBindingProtocolGuid,
- ServiceBinding
- );
-
- DnsDestroyService (DnsSb);
-
- if (gDnsControllerNameTable != NULL) {
- FreeUnicodeStringTable (gDnsControllerNameTable);
- gDnsControllerNameTable = NULL;
- }
-
- Status = EFI_SUCCESS;
- }
-
- 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] 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 ChildHandle is NULL.
- @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create
- the child
- @retval other The child handle was not created
-
-**/
-EFI_STATUS
-EFIAPI
-Dns4ServiceBindingCreateChild (
- IN EFI_SERVICE_BINDING_PROTOCOL *This,
- IN EFI_HANDLE *ChildHandle
- )
-{
- DNS_SERVICE *DnsSb;
- DNS_INSTANCE *Instance;
- EFI_STATUS Status;
- EFI_TPL OldTpl;
- VOID *Udp4;
-
- if ((This == NULL) || (ChildHandle == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- DnsSb = DNS_SERVICE_FROM_THIS (This);
-
- Status = DnsCreateInstance (DnsSb, &Instance);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- ASSERT (Instance != NULL);
-
- //
- // Install the DNS protocol onto ChildHandle
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- ChildHandle,
- &gEfiDns4ProtocolGuid,
- &Instance->Dns4,
- NULL
- );
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- Instance->ChildHandle = *ChildHandle;
-
- //
- // Open the Udp4 protocol BY_CHILD.
- //
- Status = gBS->OpenProtocol (
- DnsSb->ConnectUdp->UdpHandle,
- &gEfiUdp4ProtocolGuid,
- (VOID **) &Udp4,
- gDns4DriverBinding.DriverBindingHandle,
- Instance->ChildHandle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
- if (EFI_ERROR (Status)) {
- gBS->UninstallMultipleProtocolInterfaces (
- Instance->ChildHandle,
- &gEfiDns4ProtocolGuid,
- &Instance->Dns4,
- NULL
- );
-
- goto ON_ERROR;
- }
-
- //
- // Open the Udp4 protocol by child.
- //
- Status = gBS->OpenProtocol (
- Instance->UdpIo->UdpHandle,
- &gEfiUdp4ProtocolGuid,
- (VOID **) &Udp4,
- gDns4DriverBinding.DriverBindingHandle,
- Instance->ChildHandle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
- if (EFI_ERROR (Status)) {
- //
- // Close the Udp4 protocol.
- //
- gBS->CloseProtocol (
- DnsSb->ConnectUdp->UdpHandle,
- &gEfiUdp4ProtocolGuid,
- gDns4DriverBinding.DriverBindingHandle,
- ChildHandle
- );
-
- gBS->UninstallMultipleProtocolInterfaces (
- Instance->ChildHandle,
- &gEfiDns4ProtocolGuid,
- &Instance->Dns4,
- NULL
- );
-
- goto ON_ERROR;
- }
-
- //
- // Add it to the parent's child list.
- //
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
-
- InsertTailList (&DnsSb->Dns4ChildrenList, &Instance->Link);
- DnsSb->Dns4ChildrenNum++;
-
- gBS->RestoreTPL (OldTpl);
-
- return EFI_SUCCESS;
-
-ON_ERROR:
-
- DnsDestroyInstance (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
-Dns4ServiceBindingDestroyChild (
- IN EFI_SERVICE_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ChildHandle
- )
-{
- DNS_SERVICE *DnsSb;
- DNS_INSTANCE *Instance;
-
- EFI_DNS4_PROTOCOL *Dns4;
- 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,
- &gEfiDns4ProtocolGuid,
- (VOID **) &Dns4,
- gDns4DriverBinding.DriverBindingHandle,
- ChildHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
-
- if (EFI_ERROR (Status)) {
- return EFI_UNSUPPORTED;
- }
-
- Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL4 (Dns4);
- DnsSb = DNS_SERVICE_FROM_THIS (This);
-
- if (Instance->Service != DnsSb) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Instance->InDestroy) {
- return EFI_SUCCESS;
- }
-
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
-
- Instance->InDestroy = TRUE;
-
- //
- // Close the Udp4 protocol.
- //
- gBS->CloseProtocol (
- DnsSb->ConnectUdp->UdpHandle,
- &gEfiUdp4ProtocolGuid,
- gDns4DriverBinding.DriverBindingHandle,
- ChildHandle
- );
-
- gBS->CloseProtocol (
- Instance->UdpIo->UdpHandle,
- &gEfiUdp4ProtocolGuid,
- gDns4DriverBinding.DriverBindingHandle,
- ChildHandle
- );
-
- gBS->RestoreTPL (OldTpl);
-
- //
- // Uninstall the DNS protocol first to enable a top down destruction.
- //
- Status = gBS->UninstallProtocolInterface (
- ChildHandle,
- &gEfiDns4ProtocolGuid,
- Dns4
- );
-
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
-
- if (EFI_ERROR (Status)) {
- Instance->InDestroy = FALSE;
- gBS->RestoreTPL (OldTpl);
- return Status;
- }
-
- RemoveEntryList (&Instance->Link);
- DnsSb->Dns4ChildrenNum--;
-
- gBS->RestoreTPL (OldTpl);
-
- DnsDestroyInstance (Instance);
- return EFI_SUCCESS;
-}
-
-/**
- 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] 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 ChildHandle is NULL.
- @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create
- the child
- @retval other The child handle was not created
-
-**/
-EFI_STATUS
-EFIAPI
-Dns6ServiceBindingCreateChild (
- IN EFI_SERVICE_BINDING_PROTOCOL *This,
- IN EFI_HANDLE *ChildHandle
- )
-{
- DNS_SERVICE *DnsSb;
- DNS_INSTANCE *Instance;
- EFI_STATUS Status;
- EFI_TPL OldTpl;
- VOID *Udp6;
-
- if ((This == NULL) || (ChildHandle == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- DnsSb = DNS_SERVICE_FROM_THIS (This);
-
- Status = DnsCreateInstance (DnsSb, &Instance);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- ASSERT (Instance != NULL);
-
- //
- // Install the DNS protocol onto ChildHandle
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- ChildHandle,
- &gEfiDns6ProtocolGuid,
- &Instance->Dns6,
- NULL
- );
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- Instance->ChildHandle = *ChildHandle;
-
- //
- // Open the Udp6 protocol BY_CHILD.
- //
- Status = gBS->OpenProtocol (
- DnsSb->ConnectUdp->UdpHandle,
- &gEfiUdp6ProtocolGuid,
- (VOID **) &Udp6,
- gDns6DriverBinding.DriverBindingHandle,
- Instance->ChildHandle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
- if (EFI_ERROR (Status)) {
- gBS->UninstallMultipleProtocolInterfaces (
- Instance->ChildHandle,
- &gEfiDns6ProtocolGuid,
- &Instance->Dns6,
- NULL
- );
-
- goto ON_ERROR;
- }
-
- //
- // Open the Udp6 protocol by child.
- //
- Status = gBS->OpenProtocol (
- Instance->UdpIo->UdpHandle,
- &gEfiUdp6ProtocolGuid,
- (VOID **) &Udp6,
- gDns6DriverBinding.DriverBindingHandle,
- Instance->ChildHandle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
- if (EFI_ERROR (Status)) {
- //
- // Close the Udp6 protocol.
- //
- gBS->CloseProtocol (
- DnsSb->ConnectUdp->UdpHandle,
- &gEfiUdp6ProtocolGuid,
- gDns6DriverBinding.DriverBindingHandle,
- ChildHandle
- );
-
- gBS->UninstallMultipleProtocolInterfaces (
- Instance->ChildHandle,
- &gEfiDns6ProtocolGuid,
- &Instance->Dns6,
- NULL
- );
-
- goto ON_ERROR;
- }
-
- //
- // Add it to the parent's child list.
- //
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
-
- InsertTailList (&DnsSb->Dns6ChildrenList, &Instance->Link);
- DnsSb->Dns6ChildrenNum++;
-
- gBS->RestoreTPL (OldTpl);
-
- return EFI_SUCCESS;
-
-ON_ERROR:
-
- DnsDestroyInstance (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
-Dns6ServiceBindingDestroyChild (
- IN EFI_SERVICE_BINDING_PROTOCOL *This,
- IN EFI_HANDLE ChildHandle
- )
-{
- DNS_SERVICE *DnsSb;
- DNS_INSTANCE *Instance;
-
- EFI_DNS6_PROTOCOL *Dns6;
- 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,
- &gEfiDns6ProtocolGuid,
- (VOID **) &Dns6,
- gDns6DriverBinding.DriverBindingHandle,
- ChildHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
-
- if (EFI_ERROR (Status)) {
- return EFI_UNSUPPORTED;
- }
-
- Instance = DNS_INSTANCE_FROM_THIS_PROTOCOL6 (Dns6);
- DnsSb = DNS_SERVICE_FROM_THIS (This);
-
- if (Instance->Service != DnsSb) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Instance->InDestroy) {
- return EFI_SUCCESS;
- }
-
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
-
- Instance->InDestroy = TRUE;
-
- //
- // Close the Udp6 protocol.
- //
- gBS->CloseProtocol (
- DnsSb->ConnectUdp->UdpHandle,
- &gEfiUdp6ProtocolGuid,
- gDns6DriverBinding.DriverBindingHandle,
- ChildHandle
- );
-
- gBS->CloseProtocol (
- Instance->UdpIo->UdpHandle,
- &gEfiUdp6ProtocolGuid,
- gDns6DriverBinding.DriverBindingHandle,
- ChildHandle
- );
-
- gBS->RestoreTPL (OldTpl);
-
- //
- // Uninstall the DNS protocol first to enable a top down destruction.
- //
- Status = gBS->UninstallProtocolInterface (
- ChildHandle,
- &gEfiDns6ProtocolGuid,
- Dns6
- );
-
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
-
- if (EFI_ERROR (Status)) {
- Instance->InDestroy = FALSE;
- gBS->RestoreTPL (OldTpl);
- return Status;
- }
-
- RemoveEntryList (&Instance->Link);
- DnsSb->Dns6ChildrenNum--;
-
- gBS->RestoreTPL (OldTpl);
-
- DnsDestroyInstance (Instance);
- return EFI_SUCCESS;
-}
|