diff options
Diffstat (limited to 'Core/NetworkPkg/Udp6Dxe/Udp6Impl.h')
| -rw-r--r-- | Core/NetworkPkg/Udp6Dxe/Udp6Impl.h | 654 |
1 files changed, 654 insertions, 0 deletions
diff --git a/Core/NetworkPkg/Udp6Dxe/Udp6Impl.h b/Core/NetworkPkg/Udp6Dxe/Udp6Impl.h new file mode 100644 index 0000000000..09f315f50b --- /dev/null +++ b/Core/NetworkPkg/Udp6Dxe/Udp6Impl.h @@ -0,0 +1,654 @@ +/** @file
+ Udp6 driver's whole implementation and internal data structures.
+
+ Copyright (c) 2009 - 2014, 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.
+
+**/
+
+#ifndef _UDP6_IMPL_H_
+#define _UDP6_IMPL_H_
+
+#include <Uefi.h>
+
+#include <Protocol/Ip6.h>
+#include <Protocol/Udp6.h>
+
+#include <Library/IpIoLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DpcLib.h>
+#include <Library/PrintLib.h>
+
+#include "Udp6Driver.h"
+
+extern EFI_COMPONENT_NAME2_PROTOCOL gUdp6ComponentName2;
+extern EFI_COMPONENT_NAME_PROTOCOL gUdp6ComponentName;
+extern EFI_UNICODE_STRING_TABLE *gUdp6ControllerNameTable;
+extern EFI_SERVICE_BINDING_PROTOCOL mUdp6ServiceBinding;
+extern EFI_UDP6_PROTOCOL mUdp6Protocol;
+extern UINT16 mUdp6RandomPort;
+
+//
+// Define time out 50 milliseconds
+//
+#define UDP6_TIMEOUT_INTERVAL (50 * TICKS_PER_MS)
+#define UDP6_HEADER_SIZE sizeof (EFI_UDP_HEADER)
+#define UDP6_MAX_DATA_SIZE 65507
+#define UDP6_PORT_KNOWN 1024
+
+#define UDP6_SERVICE_DATA_SIGNATURE SIGNATURE_32 ('U', 'd', 'p', '6')
+#define UDP6_INSTANCE_DATA_SIGNATURE SIGNATURE_32 ('U', 'd', 'p', 'S')
+
+#define UDP6_SERVICE_DATA_FROM_THIS(a) \
+ CR ( \
+ (a), \
+ UDP6_SERVICE_DATA, \
+ ServiceBinding, \
+ UDP6_SERVICE_DATA_SIGNATURE \
+ )
+
+#define UDP6_INSTANCE_DATA_FROM_THIS(a) \
+ CR ( \
+ (a), \
+ UDP6_INSTANCE_DATA, \
+ Udp6Proto, \
+ UDP6_INSTANCE_DATA_SIGNATURE \
+ )
+//
+// Udp6 service contest data
+//
+typedef struct _UDP6_SERVICE_DATA {
+ UINT32 Signature;
+ EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;
+ EFI_HANDLE ImageHandle;
+ EFI_HANDLE ControllerHandle;
+ LIST_ENTRY ChildrenList;
+ UINTN ChildrenNumber;
+ IP_IO *IpIo;
+ EFI_EVENT TimeoutEvent;
+ } UDP6_SERVICE_DATA;
+
+typedef struct _UDP6_INSTANCE_DATA {
+ UINT32 Signature;
+ LIST_ENTRY Link;
+ UDP6_SERVICE_DATA *Udp6Service;
+ EFI_UDP6_PROTOCOL Udp6Proto;
+ EFI_UDP6_CONFIG_DATA ConfigData;
+ EFI_HANDLE ChildHandle;
+ BOOLEAN Configured;
+ BOOLEAN IsNoMapping;
+ NET_MAP TxTokens;
+ NET_MAP RxTokens;
+ NET_MAP McastIps;
+ LIST_ENTRY RcvdDgramQue;
+ LIST_ENTRY DeliveredDgramQue;
+ UINT16 HeadSum;
+ EFI_STATUS IcmpError;
+ IP_IO_IP_INFO *IpInfo;
+ BOOLEAN InDestroy;
+} UDP6_INSTANCE_DATA;
+
+typedef struct _UDP6_RXDATA_WRAP {
+ LIST_ENTRY Link;
+ NET_BUF *Packet;
+ UINT32 TimeoutTick;
+ EFI_UDP6_RECEIVE_DATA RxData;
+} UDP6_RXDATA_WRAP;
+
+typedef struct {
+ EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
+ UINTN NumberOfChildren;
+ EFI_HANDLE *ChildHandleBuffer;
+} UDP6_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;
+
+/**
+ Clean the Udp service context data.
+
+ @param[in, out] Udp6Service Pointer to the UDP6_SERVICE_DATA.
+
+**/
+VOID
+Udp6CleanService (
+ IN OUT UDP6_SERVICE_DATA *Udp6Service
+ );
+
+/**
+ Create the Udp service context data.
+
+ @param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.
+ @param[in] ImageHandle The image handle of this udp6 driver.
+ @param[in] ControllerHandle The controller handle this udp6 driver binds on.
+
+ @retval EFI_SUCCESS The udp6 service context data was created and
+ initialized.
+ @retval EFI_OUT_OF_RESOURCES Cannot allocate memory.
+ @retval Others An error condition occurred.
+
+**/
+EFI_STATUS
+Udp6CreateService (
+ IN UDP6_SERVICE_DATA *Udp6Service,
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_HANDLE ControllerHandle
+ );
+
+/**
+ This function cleans the udp instance.
+
+ @param[in, out] Instance Pointer to the UDP6_INSTANCE_DATA to clean.
+
+**/
+VOID
+Udp6CleanInstance (
+ IN OUT UDP6_INSTANCE_DATA *Instance
+ );
+
+/**
+ This function intializes the new created udp instance.
+
+ @param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.
+ @param[in, out] Instance Pointer to the un-initialized UDP6_INSTANCE_DATA.
+
+**/
+VOID
+Udp6InitInstance (
+ IN UDP6_SERVICE_DATA *Udp6Service,
+ IN OUT UDP6_INSTANCE_DATA *Instance
+ );
+
+/**
+ This function reports the received ICMP error.
+
+ @param[in] Instance Pointer to the udp instance context data.
+
+**/
+VOID
+Udp6ReportIcmpError (
+ IN UDP6_INSTANCE_DATA *Instance
+ );
+
+/**
+ This function copies the current operational settings of this EFI UDPv6 Protocol
+ instance into user-supplied buffers. This function is used optionally to retrieve
+ the operational mode data of underlying networks or drivers.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+ @param[out] Udp6ConfigData The buffer in which the current UDP configuration
+ data is returned. This parameter is optional and
+ may be NULL.
+ @param[out] Ip6ModeData The buffer in which the current EFI IPv6 Protocol
+ mode data is returned. This parameter is optional
+ and may be NULL.
+ @param[out] MnpConfigData The buffer in which the current managed network
+ configuration data is returned. This parameter
+ is optional and may be NULL.
+ @param[out] SnpModeData The buffer in which the simple network mode data
+ is returned. This parameter is optional and may be NULL.
+
+ @retval EFI_SUCCESS The mode data was read.
+ @retval EFI_NOT_STARTED When Udp6ConfigData is queried, no configuration
+ data is available because this instance has not
+ been started.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6GetModeData (
+ IN EFI_UDP6_PROTOCOL *This,
+ OUT EFI_UDP6_CONFIG_DATA *Udp6ConfigData OPTIONAL,
+ OUT EFI_IP6_MODE_DATA *Ip6ModeData OPTIONAL,
+ OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,
+ OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL
+ );
+
+/**
+ This function is used to do the following:
+ Initialize and start this instance of the EFI UDPv6 Protocol.
+ Change the filtering rules and operational parameters.
+ Reset this instance of the EFI UDPv6 Protocol.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+ @param[in] UdpConfigData Pointer to the buffer to set the configuration
+ data. This parameter is optional and may be NULL.
+
+ @retval EFI_SUCCESS The configuration settings were set, changed, or
+ reset successfully.
+ @retval EFI_NO_MAPPING When the UdpConifgData.UseAnyStationAddress is set
+ to true and there is no address available for IP6
+ driver to binding source address to this
+ instance.
+ @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
+ This is NULL.
+ UdpConfigData.StationAddress is not a valid
+ unicast IPv6 address.
+ UdpConfigData.RemoteAddress is not a valid unicast
+ IPv6 address, if it is not zero.
+ @retval EFI_ALREADY_STARTED The EFI UDPv6 Protocol instance is already
+ started/configured and must be stopped/reset
+ before it can be reconfigured. Only TrafficClass,
+ HopLimit, ReceiveTimeout, and TransmitTimeout can
+ be reconfigured without stopping the current
+ instance of the EFI UDPv6 Protocol.
+ @retval EFI_ACCESS_DENIED UdpConfigData.AllowDuplicatePort is FALSE, and
+ UdpConfigData.StationPort is already used by another
+ instance.
+ @retval EFI_OUT_OF_RESOURCES The EFI UDPv6 Protocol driver cannot allocate
+ memory for this EFI UDPv6 Protocol instance.
+ @retval EFI_DEVICE_ERROR An unexpected network or system error occurred, and
+ this instance was not opened.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6Configure (
+ IN EFI_UDP6_PROTOCOL *This,
+ IN EFI_UDP6_CONFIG_DATA *UdpConfigData OPTIONAL
+ );
+
+/**
+ This function places a sending request to this instance of the EFI UDPv6 Protocol,
+ alongside the transmit data that was filled by the user.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+ @param[in] Token Pointer to the completion token that will be
+ placed into the transmit queue.
+
+ @retval EFI_SUCCESS The data has been queued for transmission.
+ @retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been
+ started.
+ @retval EFI_NO_MAPPING The under-layer IPv6 driver was responsible for
+ choosing a source address for this instance, but
+ no source address was available for use.
+ @retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
+ This is NULL. Token is NULL. Token.Event is NULL.
+ Token.Packet.TxData is NULL.
+ Token.Packet.TxData.FragmentCount is zero.
+ Token.Packet.TxData.DataLength is not equal to the
+ sum of fragment lengths.
+ One or more of the
+ Token.Packet.TxData.FragmentTable[]
+ .FragmentLength fields is zero.
+ One or more of the
+ Token.Packet.TxData.FragmentTable[]
+ .FragmentBuffer fields is NULL.
+ One or more of the
+ Token.Packet.TxData.UdpSessionData.
+ DestinationAddres are not valid unicast IPv6
+ addresses, if the UdpSessionData is not NULL.
+ Token.Packet.TxData.UdpSessionData.
+ DestinationAddres is NULL
+ Token.Packet.TxData.UdpSessionData.
+ DestinatioPort is zero.
+ Token.Packet.TxData.UdpSessionData is
+ NULL and this instance's
+ UdpConfigData.RemoteAddress is unspecified.
+ @retval EFI_ACCESS_DENIED The transmit completion token with the same
+ Token.Event is already in the transmit queue.
+ @retval EFI_NOT_READY The completion token could not be queued because
+ the transmit queue is full.
+ @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.
+ @retval EFI_NOT_FOUND There is no route to the destination network or
+ address.
+ @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP
+ packet size. Or the length of the IP header + UDP
+ header + data length is greater than MTU if
+ DoNotFragment is TRUE.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6Transmit (
+ IN EFI_UDP6_PROTOCOL *This,
+ IN EFI_UDP6_COMPLETION_TOKEN *Token
+ );
+
+/**
+ This function places a completion token into the receive packet queue. This function
+ is always asynchronous.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+ @param[in] Token Pointer to a token that is associated with the
+ receive data descriptor.
+
+ @retval EFI_SUCCESS The receive completion token is cached.
+ @retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been
+ started.
+ @retval EFI_NO_MAPPING When using a default address, configuration (DHCP,
+ BOOTP, RARP, etc.) is not finished yet.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ This is NULL.
+ Token is NULL.
+ Token.Event is NULL.
+ @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued
+ due to a lack of system resources (usually
+ memory).
+ @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
+ The EFI UDPv6 Protocol instance has been reset to
+ startup defaults.
+ @retval EFI_ACCESS_DENIED A receive completion token with the same
+ Token.Event is already in the receive queue.
+ @retval EFI_NOT_READY The receive request could not be queued because
+ the receive queue is full.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6Receive (
+ IN EFI_UDP6_PROTOCOL *This,
+ IN EFI_UDP6_COMPLETION_TOKEN *Token
+ );
+
+/**
+ This function is used to abort a pending transmit or receive request.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+ @param[in] Token Pointer to a token that has been issued by
+ EFI_UDP6_PROTOCOL.Transmit() or
+ EFI_UDP6_PROTOCOL.Receive(). This parameter is
+ optional and may be NULL.
+
+ @retval EFI_SUCCESS The asynchronous I/O request is aborted and
+ Token.Event is signaled. When Token is NULL, all
+ pending requests are aborted and their events are
+ signaled.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+ @retval EFI_NOT_STARTED This instance has not been started.
+ @retval EFI_NO_MAPPING When using the default address, configuration
+ (DHCP, BOOTP, RARP, etc.) is not finished yet.
+ @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O
+ request is not found in the transmit or receive
+ queue. It either completed or was not issued by
+ Transmit() or Receive().
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6Cancel (
+ IN EFI_UDP6_PROTOCOL *This,
+ IN EFI_UDP6_COMPLETION_TOKEN *Token OPTIONAL
+ );
+
+/**
+ This function can be used by network drivers and applications to increase the rate that
+ data packets are moved between the communications device and the transmit/receive queues.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+
+ @retval EFI_SUCCESS Incoming or outgoing data was processed.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+ @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
+ @retval EFI_TIMEOUT Data was dropped out of the transmit and/or
+ receive queue.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6Poll (
+ IN EFI_UDP6_PROTOCOL *This
+ );
+
+/**
+ This function is used to enable and disable the multicast group filtering.
+
+ @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
+ @param[in] JoinFlag Set to TRUE to join a multicast group. Set to
+ FALSE to leave one or all multicast groups.
+ @param[in] MulticastAddress Pointer to multicast group address to join or
+ leave. This parameter is optional and may be NULL.
+
+ @retval EFI_SUCCESS The operation completed successfully.
+ @retval EFI_NOT_STARTED The EFI UDPv6 Protocol instance has not been
+ started.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group.
+ @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
+ This is NULL. JoinFlag is TRUE and
+ MulticastAddress is NULL. JoinFlag is TRUE and
+ *MulticastAddress is not a valid multicast
+ address.
+ @retval EFI_ALREADY_STARTED The group address is already in the group table
+ (when JoinFlag is TRUE).
+ @retval EFI_NOT_FOUND The group address is not in the group table (when
+ JoinFlag is FALSE).
+ @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6Groups (
+ IN EFI_UDP6_PROTOCOL *This,
+ IN BOOLEAN JoinFlag,
+ IN EFI_IPv6_ADDRESS *MulticastAddress OPTIONAL
+ );
+
+/**
+ This function tries to bind the udp instance according to the configured port
+ allocation stragety.
+
+ @param[in] InstanceList Pointer to the head of the list linking the udp
+ instances.
+ @param[in] ConfigData Pointer to the ConfigData of the instance to be
+ bound.
+
+ @retval EFI_SUCCESS The bound operation completed successfully.
+ @retval EFI_ACCESS_DENIED The <Address, Port> specified by the ConfigData is
+ already used by another instance.
+ @retval EFI_OUT_OF_RESOURCES No available port resources.
+
+**/
+EFI_STATUS
+Udp6Bind (
+ IN LIST_ENTRY *InstanceList,
+ IN EFI_UDP6_CONFIG_DATA *ConfigData
+ );
+
+/**
+ This function builds the Ip6 configdata from the Udp6ConfigData.
+
+ @param[in] Udp6ConfigData Pointer to the EFI_UDP6_CONFIG_DATA.
+ @param[in, out] Ip6ConfigData Pointer to the EFI_IP6_CONFIG_DATA.
+
+**/
+VOID
+Udp6BuildIp6ConfigData (
+ IN EFI_UDP6_CONFIG_DATA *Udp6ConfigData,
+ IN OUT EFI_IP6_CONFIG_DATA *Ip6ConfigData
+ );
+
+/**
+ This function checks whether the specified Token duplicates with the one in the Map.
+
+ @param[in] Map Pointer to the NET_MAP.
+ @param[in] Item Pointer to the NET_MAP_ITEM contain the pointer to
+ the Token.
+ @param[in] Context Pointer to the Token to be checked.
+
+ @retval EFI_SUCCESS The Token specified by Context differs from the
+ one in the Item.
+ @retval EFI_ACCESS_DENIED The Token duplicates with the one in the Item.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6TokenExist (
+ IN NET_MAP *Map,
+ IN NET_MAP_ITEM *Item,
+ IN VOID *Context
+ );
+
+/**
+ This function removes the specified Token from the TokenMap.
+
+ @param[in] TokenMap Pointer to the NET_MAP containing the tokens.
+ @param[in] Token Pointer to the Token to be removed.
+
+ @retval EFI_SUCCESS The specified Token is removed from the TokenMap.
+ @retval EFI_NOT_FOUND The specified Token is not found in the TokenMap.
+
+**/
+EFI_STATUS
+Udp6RemoveToken (
+ IN NET_MAP *TokenMap,
+ IN EFI_UDP6_COMPLETION_TOKEN *Token
+ );
+
+/**
+ This function is used to check whether the NewConfigData has any un-reconfigurable
+ parameters changed compared to the OldConfigData.
+
+ @param[in] OldConfigData Pointer to the current ConfigData the udp instance
+ uses.
+ @param[in] NewConfigData Pointer to the new ConfigData.
+
+ @retval TRUE The instance is reconfigurable according to NewConfigData.
+ @retval FALSE The instance is not reconfigurable according to NewConfigData.
+
+**/
+BOOLEAN
+Udp6IsReconfigurable (
+ IN EFI_UDP6_CONFIG_DATA *OldConfigData,
+ IN EFI_UDP6_CONFIG_DATA *NewConfigData
+ );
+
+/**
+ This function removes the multicast group specified by Arg from the Map.
+
+ @param[in] Map Pointer to the NET_MAP.
+ @param[in] Item Pointer to the NET_MAP_ITEM.
+ @param[in] Arg Pointer to the Arg. It is the pointer to a
+ multicast IPv6 Address. This parameter is
+ optional and may be NULL.
+
+ @retval EFI_SUCCESS The multicast address is removed.
+ @retval EFI_ABORTED The specified multicast address is removed, and the
+ Arg is not NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+Udp6LeaveGroup (
+ IN NET_MAP *Map,
+ IN NET_MAP_ITEM *Item,
+ IN VOID *Arg OPTIONAL
+ );
+
+/**
+ This function validates the TxToken, it returns the error code according to the spec.
+
+ @param[in] Instance Pointer to the udp instance context data.
+ @param[in] TxToken Pointer to the token to be checked.
+
+ @retval EFI_SUCCESS The TxToken is valid.
+ @retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
+ Token.Event is NULL.
+ Token.Packet.TxData is NULL.
+ Token.Packet.TxData.FragmentCount is zero.
+ Token.Packet.TxData.DataLength is not equal to the
+ sum of fragment lengths.
+ One or more of the
+ Token.Packet.TxData.FragmentTable[].FragmentLength
+ fields is zero.
+ One or more of the
+ Token.Packet.TxData.FragmentTable[].FragmentBuffer
+ fields is NULL.
+ UdpSessionData.DestinationAddress are not valid
+ unicast IPv6 addresses if the UdpSessionData is
+ not NULL.
+ UdpSessionData.DestinationPort and
+ ConfigData.RemotePort are all zero if the
+ UdpSessionData is not NULL.
+ @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP
+ packet size.
+
+**/
+EFI_STATUS
+Udp6ValidateTxToken (
+ IN UDP6_INSTANCE_DATA *Instance,
+ IN EFI_UDP6_COMPLETION_TOKEN *TxToken
+ );
+
+/**
+ This function is a dummy ext-free function for the NET_BUF created for the output
+ udp datagram.
+
+ @param[in] Context Pointer to the context data.
+
+**/
+VOID
+EFIAPI
+Udp6NetVectorExtFree (
+ IN VOID *Context
+ );
+
+/**
+ This function calculates the checksum for the Packet, utilizing the pre-calculated
+ pseudo header to reduce overhead.
+
+ @param[in] Packet Pointer to the NET_BUF contains the udp datagram.
+ @param[in] HeadSum Checksum of the pseudo header execpt the length
+ field.
+
+ @return The 16-bit checksum of this udp datagram.
+
+**/
+UINT16
+Udp6Checksum (
+ IN NET_BUF *Packet,
+ IN UINT16 HeadSum
+ );
+
+/**
+ This function delivers the received datagrams to the specified instance.
+
+ @param[in] Instance Pointer to the instance context data.
+
+**/
+VOID
+Udp6InstanceDeliverDgram (
+ IN UDP6_INSTANCE_DATA *Instance
+ );
+
+/**
+ Cancel Udp6 tokens from the Udp6 instance.
+
+ @param[in] Instance Pointer to the udp instance context data.
+ @param[in] Token Pointer to the token to be canceled. If NULL, all
+ tokens in this instance will be cancelled.
+ This parameter is optional and may be NULL.
+
+ @retval EFI_SUCCESS The Token is cancelled.
+ @retval EFI_NOT_FOUND The Token is not found.
+
+**/
+EFI_STATUS
+Udp6InstanceCancelToken (
+ IN UDP6_INSTANCE_DATA *Instance,
+ IN EFI_UDP6_COMPLETION_TOKEN *Token OPTIONAL
+ );
+
+/**
+ This function removes all the Wrap datas in the RcvdDgramQue.
+
+ @param[in] Instance Pointer to the Udp6 Instance.
+
+**/
+VOID
+Udp6FlushRcvdDgram (
+ IN UDP6_INSTANCE_DATA *Instance
+ );
+
+#endif
+
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