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- /** @file
- The header files of the driver binding and service binding protocol for DnsDxe driver.
- Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef _DNS_DRIVER_H_
- #define _DNS_DRIVER_H_
- #include <Protocol/DriverBinding.h>
- #include <Protocol/ServiceBinding.h>
- ///
- /// Dns service block
- ///
- typedef struct _DNS_DRIVER_DATA DNS_DRIVER_DATA;
- ///
- /// Dns service block
- ///
- typedef struct _DNS_SERVICE DNS_SERVICE;
- ///
- /// Dns instance block
- ///
- typedef struct _DNS_INSTANCE DNS_INSTANCE;
- #define DNS_SERVICE_SIGNATURE SIGNATURE_32 ('D', 'N', 'S', 'S')
- #define DNS_INSTANCE_SIGNATURE SIGNATURE_32 ('D', 'N', 'S', 'I')
- struct _DNS_DRIVER_DATA {
- EFI_EVENT Timer; /// Ticking timer for DNS cache update.
- LIST_ENTRY Dns4CacheList;
- LIST_ENTRY Dns4ServerList;
- LIST_ENTRY Dns6CacheList;
- LIST_ENTRY Dns6ServerList;
- };
- struct _DNS_SERVICE {
- UINT32 Signature;
- EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;
- UINT16 Dns4ChildrenNum;
- LIST_ENTRY Dns4ChildrenList;
- UINT16 Dns6ChildrenNum;
- LIST_ENTRY Dns6ChildrenList;
- EFI_HANDLE ControllerHandle;
- EFI_HANDLE ImageHandle;
- EFI_EVENT TimerToGetMap;
- EFI_EVENT Timer; /// Ticking timer for packet retransmission.
- UINT8 IpVersion;
- UDP_IO *ConnectUdp;
- };
- struct _DNS_INSTANCE {
- UINT32 Signature;
- LIST_ENTRY Link;
- EFI_DNS4_PROTOCOL Dns4;
- EFI_DNS6_PROTOCOL Dns6;
- INTN State;
- BOOLEAN InDestroy;
- DNS_SERVICE *Service;
- EFI_HANDLE ChildHandle;
- EFI_DNS4_CONFIG_DATA Dns4CfgData;
- EFI_DNS6_CONFIG_DATA Dns6CfgData;
- EFI_IP_ADDRESS SessionDnsServer;
- NET_MAP Dns4TxTokens;
- NET_MAP Dns6TxTokens;
- UDP_IO *UdpIo;
- };
- typedef struct {
- EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
- UINTN NumberOfChildren;
- EFI_HANDLE *ChildHandleBuffer;
- } DNS_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;
- extern DNS_DRIVER_DATA *mDriverData;
- #define DNS_SERVICE_FROM_THIS(a) \
- CR (a, DNS_SERVICE, ServiceBinding, DNS_SERVICE_SIGNATURE)
- #define DNS_INSTANCE_FROM_THIS_PROTOCOL4(a) \
- CR (a, DNS_INSTANCE, Dns4, DNS_INSTANCE_SIGNATURE)
- #define DNS_INSTANCE_FROM_THIS_PROTOCOL6(a) \
- CR (a, DNS_INSTANCE, Dns6, DNS_INSTANCE_SIGNATURE)
- /**
- Destroy the DNS instance and recycle the resources.
- @param[in] Instance The pointer to the DNS instance.
- **/
- VOID
- DnsDestroyInstance (
- IN DNS_INSTANCE *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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- Release all the resource used the DNS service binding instance.
- @param DnsSb The Dns service binding instance.
- **/
- VOID
- DnsDestroyService (
- IN DNS_SERVICE *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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- /**
- 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
- );
- #endif
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