2 Contains all EFI_UDP6_PROTOCOL interfaces.
4 Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
12 EFI_UDP6_PROTOCOL mUdp6Protocol
= {
24 This function copies the current operational settings of this EFI UDPv6 Protocol
25 instance into user-supplied buffers. This function is used optionally to retrieve
26 the operational mode data of underlying networks or drivers.
28 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
29 @param[out] Udp6ConfigData The buffer in which the current UDP configuration
30 data is returned. This parameter is optional and
32 @param[out] Ip6ModeData The buffer in which the current EFI IPv6 Protocol
33 mode data is returned. This parameter is optional
35 @param[out] MnpConfigData The buffer in which the current managed network
36 configuration data is returned. This parameter is
37 optional and may be NULL.
38 @param[out] SnpModeData The buffer in which the simple network mode data
39 is returned. This parameter is optional and may be NULL.
41 @retval EFI_SUCCESS The mode data was read.
42 @retval EFI_NOT_STARTED When Udp6ConfigData is queried, no configuration
43 data is available because this instance has not
45 @retval EFI_INVALID_PARAMETER This is NULL.
51 IN EFI_UDP6_PROTOCOL
*This
,
52 OUT EFI_UDP6_CONFIG_DATA
*Udp6ConfigData OPTIONAL
,
53 OUT EFI_IP6_MODE_DATA
*Ip6ModeData OPTIONAL
,
54 OUT EFI_MANAGED_NETWORK_CONFIG_DATA
*MnpConfigData OPTIONAL
,
55 OUT EFI_SIMPLE_NETWORK_MODE
*SnpModeData OPTIONAL
58 UDP6_INSTANCE_DATA
*Instance
;
64 return EFI_INVALID_PARAMETER
;
67 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
69 if (!Instance
->Configured
&& (Udp6ConfigData
!= NULL
)) {
70 return EFI_NOT_STARTED
;
73 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
75 if (Udp6ConfigData
!= NULL
) {
77 // Set the Udp6ConfigData.
79 CopyMem (Udp6ConfigData
, &Instance
->ConfigData
, sizeof (EFI_UDP6_CONFIG_DATA
));
82 Ip
= Instance
->IpInfo
->Ip
.Ip6
;
85 // Get the underlying Ip6ModeData, MnpConfigData and SnpModeData.
87 Status
= Ip
->GetModeData (Ip
, Ip6ModeData
, MnpConfigData
, SnpModeData
);
89 gBS
->RestoreTPL (OldTpl
);
96 This function is used to do the following:
97 Initialize and start this instance of the EFI UDPv6 Protocol.
98 Change the filtering rules and operational parameters.
99 Reset this instance of the EFI UDPv6 Protocol.
101 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
102 @param[in] UdpConfigData Pointer to the buffer to set the configuration
103 data. This parameter is optional and may be NULL.
105 @retval EFI_SUCCESS The configuration settings were set, changed, or
107 @retval EFI_NO_MAPPING When the UdpConfigData.UseAnyStationAddress is set
108 to true and there is no address available for the IP6
109 driver to bind a source address to this instance.
110 @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
112 UdpConfigData.StationAddress is not a valid
113 unicast IPv6 address.
114 UdpConfigData.RemoteAddress is not a valid unicast
115 IPv6 address if it is not zero.
116 @retval EFI_ALREADY_STARTED The EFI UDPv6 Protocol instance is already
117 started/configured and must be stopped/reset
118 before it can be reconfigured. Only TrafficClass,
119 HopLimit, ReceiveTimeout, and TransmitTimeout can
120 be reconfigured without stopping the current
121 instance of the EFI UDPv6 Protocol.
122 @retval EFI_ACCESS_DENIED UdpConfigData.AllowDuplicatePort is FALSE and
123 UdpConfigData.StationPort is already used by another
125 @retval EFI_OUT_OF_RESOURCES The EFI UDPv6 Protocol driver cannot allocate
126 memory for this EFI UDPv6 Protocol instance.
127 @retval EFI_DEVICE_ERROR An unexpected network or system error occurred, and
128 this instance was not opened.
134 IN EFI_UDP6_PROTOCOL
*This
,
135 IN EFI_UDP6_CONFIG_DATA
*UdpConfigData OPTIONAL
139 UDP6_INSTANCE_DATA
*Instance
;
140 UDP6_SERVICE_DATA
*Udp6Service
;
142 EFI_IPv6_ADDRESS StationAddress
;
143 EFI_IPv6_ADDRESS RemoteAddress
;
144 EFI_IP6_CONFIG_DATA Ip6ConfigData
;
145 EFI_IPv6_ADDRESS LocalAddr
;
146 EFI_IPv6_ADDRESS RemoteAddr
;
149 return EFI_INVALID_PARAMETER
;
152 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
154 if (!Instance
->Configured
&& (UdpConfigData
== NULL
)) {
158 Udp6Service
= Instance
->Udp6Service
;
159 Status
= EFI_SUCCESS
;
160 ASSERT (Udp6Service
!= NULL
);
162 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
164 if (UdpConfigData
!= NULL
) {
166 IP6_COPY_ADDRESS (&StationAddress
, &UdpConfigData
->StationAddress
);
167 IP6_COPY_ADDRESS (&RemoteAddress
, &UdpConfigData
->RemoteAddress
);
169 if ((!NetIp6IsUnspecifiedAddr (&StationAddress
) && !NetIp6IsValidUnicast (&StationAddress
)) ||
170 (!NetIp6IsUnspecifiedAddr (&RemoteAddress
) && !NetIp6IsValidUnicast (&RemoteAddress
))
173 // If not use default address, and StationAddress is not a valid unicast
174 // if it is not IPv6 address or RemoteAddress is not a valid unicast IPv6
175 // address if it is not 0.
177 Status
= EFI_INVALID_PARAMETER
;
181 if (Instance
->Configured
) {
183 // The instance is already configured, try to do the re-configuration.
185 if (!Udp6IsReconfigurable (&Instance
->ConfigData
, UdpConfigData
)) {
187 // If the new configuration data wants to change some unreconfigurable
188 // settings, return EFI_ALREADY_STARTED.
190 Status
= EFI_ALREADY_STARTED
;
195 // Save the reconfigurable parameters.
197 Instance
->ConfigData
.TrafficClass
= UdpConfigData
->TrafficClass
;
198 Instance
->ConfigData
.HopLimit
= UdpConfigData
->HopLimit
;
199 Instance
->ConfigData
.ReceiveTimeout
= UdpConfigData
->ReceiveTimeout
;
200 Instance
->ConfigData
.TransmitTimeout
= UdpConfigData
->TransmitTimeout
;
203 // Construct the Ip configuration data from the UdpConfigData.
205 Udp6BuildIp6ConfigData (UdpConfigData
, &Ip6ConfigData
);
208 // Configure the Ip instance wrapped in the IpInfo.
210 Status
= IpIoConfigIp (Instance
->IpInfo
, &Ip6ConfigData
);
211 if (EFI_ERROR (Status
)) {
212 if (Status
== EFI_NO_MAPPING
) {
213 Instance
->IsNoMapping
= TRUE
;
219 Instance
->IsNoMapping
= FALSE
;
222 // Save the configuration data.
225 &Instance
->ConfigData
,
227 sizeof (EFI_UDP6_CONFIG_DATA
)
229 IP6_COPY_ADDRESS (&Instance
->ConfigData
.StationAddress
, &Ip6ConfigData
.StationAddress
);
231 // Try to allocate the required port resource.
233 Status
= Udp6Bind (&Udp6Service
->ChildrenList
, &Instance
->ConfigData
);
234 if (EFI_ERROR (Status
)) {
236 // Reset the ip instance if bind fails.
238 IpIoConfigIp (Instance
->IpInfo
, NULL
);
243 // Pre calculate the checksum for the pseudo head, ignore the UDP length first.
245 IP6_COPY_ADDRESS (&LocalAddr
, &Instance
->ConfigData
.StationAddress
);
246 IP6_COPY_ADDRESS (&RemoteAddr
, &Instance
->ConfigData
.RemoteAddress
);
248 Instance
->HeadSum
= NetIp6PseudoHeadChecksum (
255 Instance
->Configured
= TRUE
;
259 // UdpConfigData is NULL, reset the instance.
261 Instance
->Configured
= FALSE
;
262 Instance
->IsNoMapping
= FALSE
;
265 // Reset the Ip instance wrapped in the IpInfo.
267 IpIoConfigIp (Instance
->IpInfo
, NULL
);
270 // Cancel all the user tokens.
272 Instance
->Udp6Proto
.Cancel (&Instance
->Udp6Proto
, NULL
);
275 // Remove the buffered RxData for this instance.
277 Udp6FlushRcvdDgram (Instance
);
279 ASSERT (IsListEmpty (&Instance
->DeliveredDgramQue
));
284 gBS
->RestoreTPL (OldTpl
);
291 This function is used to enable and disable the multicast group filtering.
293 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
294 @param[in] JoinFlag Set to TRUE to join a multicast group. Set to
295 FALSE to leave one or all multicast groups.
296 @param[in] MulticastAddress Pointer to multicast group address to join or
297 leave. This parameter is optional and may be NULL.
299 @retval EFI_SUCCESS The operation completed successfully.
300 @retval EFI_NOT_STARTED The EFI UDPv6 Protocol instance has not been
302 @retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group.
303 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
305 JoinFlag is TRUE and MulticastAddress is NULL.
306 JoinFlag is TRUE and *MulticastAddress is not a
307 valid multicast address.
308 @retval EFI_ALREADY_STARTED The group address is already in the group table
309 (when JoinFlag is TRUE).
310 @retval EFI_NOT_FOUND The group address is not in the group table (when
312 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
318 IN EFI_UDP6_PROTOCOL
*This
,
320 IN EFI_IPv6_ADDRESS
*MulticastAddress OPTIONAL
324 UDP6_INSTANCE_DATA
*Instance
;
325 EFI_IP6_PROTOCOL
*Ip
;
327 EFI_IPv6_ADDRESS
*McastIp
;
329 if ((This
== NULL
) || (JoinFlag
&& (MulticastAddress
== NULL
))) {
330 return EFI_INVALID_PARAMETER
;
336 if (!IP6_IS_MULTICAST (MulticastAddress
)) {
337 return EFI_INVALID_PARAMETER
;
340 McastIp
= AllocateCopyPool (sizeof (EFI_IPv6_ADDRESS
), MulticastAddress
);
341 if (McastIp
== NULL
) {
342 return EFI_OUT_OF_RESOURCES
;
346 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
347 if (!Instance
->Configured
) {
348 if (McastIp
!= NULL
) {
351 return EFI_NOT_STARTED
;
354 Ip
= Instance
->IpInfo
->Ip
.Ip6
;
356 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
359 // Invoke the Ip instance the Udp6 instance consumes to do the group operation.
361 Status
= Ip
->Groups (Ip
, JoinFlag
, MulticastAddress
);
363 if (EFI_ERROR (Status
)) {
368 // Keep a local copy of the configured multicast IPs because IpIo receives
369 // datagrams from the 0 station address IP instance and then UDP delivers to
370 // the matched instance. This copy of multicast IPs is used to avoid receive
371 // the multicast datagrams destinated to multicast IPs the other instances configured.
375 Status
= NetMapInsertTail (&Instance
->McastIps
, (VOID
*) McastIp
, NULL
);
378 Status
= NetMapIterate (&Instance
->McastIps
, Udp6LeaveGroup
, MulticastAddress
);
379 if ((MulticastAddress
!= NULL
) && (Status
== EFI_ABORTED
)) {
380 Status
= EFI_SUCCESS
;
386 gBS
->RestoreTPL (OldTpl
);
388 if (EFI_ERROR (Status
)) {
389 if (McastIp
!= NULL
) {
400 This function places a sending request to this instance of the EFI UDPv6 Protocol,
401 alongside the transmit data that was filled by the user.
403 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
404 @param[in] Token Pointer to the completion token that will be
405 placed into the transmit queue.
407 @retval EFI_SUCCESS The data was queued for transmission.
408 @retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been
410 @retval EFI_NO_MAPPING The under-layer IPv6 driver was responsible for
411 choosing a source address for this instance, but
412 no source address was available for use.
413 @retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
415 Token is NULL. Token.Event is NULL.
416 Token.Packet.TxData is NULL.
417 Token.Packet.TxData.FragmentCount is zero.
418 Token.Packet.TxData.DataLength is not equal to the
419 sum of fragment lengths.
421 Token.Packet.TxData.FragmentTable[].FragmentLength
424 Token.Packet.TxData.FragmentTable[].FragmentBuffer
425 fields is NULL. One or more of the
426 Token.Packet.TxData.UdpSessionData.DestinationAddress
427 are not valid unicast IPv6
428 addresses if the UdpSessionData is not NULL.
429 Token.Packet.TxData.UdpSessionData.
430 DestinationAddress is NULL
431 Token.Packet.TxData.UdpSessionData.
434 Token.Packet.TxData.UdpSessionData is NULL and this
435 instance's UdpConfigData.RemoteAddress is unspecified.
436 @retval EFI_ACCESS_DENIED The transmit completion token with the same
437 Token.Event is already in the transmit queue.
438 @retval EFI_NOT_READY The completion token could not be queued because
439 the transmit queue is full.
440 @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.
441 @retval EFI_NOT_FOUND There is no route to the destination network or
443 @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP
444 packet size. Or, the length of the IP header + UDP
445 header + data length is greater than MTU if
446 DoNotFragment is TRUE.
452 IN EFI_UDP6_PROTOCOL
*This
,
453 IN EFI_UDP6_COMPLETION_TOKEN
*Token
457 UDP6_INSTANCE_DATA
*Instance
;
460 EFI_UDP_HEADER
*Udp6Header
;
461 EFI_UDP6_CONFIG_DATA
*ConfigData
;
462 EFI_IPv6_ADDRESS Source
;
463 EFI_IPv6_ADDRESS Destination
;
464 EFI_UDP6_TRANSMIT_DATA
*TxData
;
465 EFI_UDP6_SESSION_DATA
*UdpSessionData
;
466 UDP6_SERVICE_DATA
*Udp6Service
;
467 IP_IO_OVERRIDE Override
;
469 EFI_IP_ADDRESS IpDestAddr
;
471 if ((This
== NULL
) || (Token
== NULL
)) {
472 return EFI_INVALID_PARAMETER
;
475 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
477 if (!Instance
->Configured
) {
478 return EFI_NOT_STARTED
;
481 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
484 // Validate the Token, if the token is invalid return the error code.
486 Status
= Udp6ValidateTxToken (Instance
, Token
);
487 if (EFI_ERROR (Status
)) {
491 if (EFI_ERROR (NetMapIterate (&Instance
->TxTokens
, Udp6TokenExist
, Token
)) ||
492 EFI_ERROR (NetMapIterate (&Instance
->RxTokens
, Udp6TokenExist
, Token
))
495 // Try to find a duplicate token in the two token maps, if found, return
496 // EFI_ACCESS_DENIED.
498 Status
= EFI_ACCESS_DENIED
;
502 TxData
= Token
->Packet
.TxData
;
505 // Create a net buffer to hold the user buffer and the udp header.
507 Packet
= NetbufFromExt (
508 (NET_FRAGMENT
*) TxData
->FragmentTable
,
509 TxData
->FragmentCount
,
512 Udp6NetVectorExtFree
,
515 if (Packet
== NULL
) {
516 Status
= EFI_OUT_OF_RESOURCES
;
521 // Store the IpIo in ProtoData.
523 Udp6Service
= Instance
->Udp6Service
;
524 *((UINTN
*) &Packet
->ProtoData
[0]) = (UINTN
) (Udp6Service
->IpIo
);
526 Udp6Header
= (EFI_UDP_HEADER
*) NetbufAllocSpace (Packet
, UDP6_HEADER_SIZE
, TRUE
);
527 ASSERT (Udp6Header
!= NULL
);
528 if (Udp6Header
== NULL
) {
529 Status
= EFI_OUT_OF_RESOURCES
;
533 ConfigData
= &Instance
->ConfigData
;
536 // Fill the udp header.
538 Udp6Header
->SrcPort
= HTONS (ConfigData
->StationPort
);
539 Udp6Header
->DstPort
= HTONS (ConfigData
->RemotePort
);
540 Udp6Header
->Length
= HTONS ((UINT16
) Packet
->TotalSize
);
541 Udp6Header
->Checksum
= 0;
543 // Set the UDP Header in NET_BUF, this UDP header is for IP6 can fast get the
544 // Udp header for pseudoHeadCheckSum.
546 Packet
->Udp
= Udp6Header
;
547 UdpSessionData
= TxData
->UdpSessionData
;
549 if (UdpSessionData
!= NULL
) {
551 // Set the Destination according to the specified
555 if (UdpSessionData
->DestinationPort
!= 0) {
556 Udp6Header
->DstPort
= HTONS (UdpSessionData
->DestinationPort
);
559 IP6_COPY_ADDRESS (&Source
, &ConfigData
->StationAddress
);
560 if (!NetIp6IsUnspecifiedAddr (&UdpSessionData
->DestinationAddress
)) {
561 IP6_COPY_ADDRESS (&Destination
, &UdpSessionData
->DestinationAddress
);
563 IP6_COPY_ADDRESS (&Destination
, &ConfigData
->RemoteAddress
);
567 //Calculate the pseudo head checksum using the overridden parameters.
569 if (!NetIp6IsUnspecifiedAddr (&ConfigData
->StationAddress
)) {
570 HeadSum
= NetIp6PseudoHeadChecksum (
578 // calculate the checksum.
580 Udp6Header
->Checksum
= Udp6Checksum (Packet
, HeadSum
);
581 if (Udp6Header
->Checksum
== 0) {
583 // If the calculated checksum is 0, fill the Checksum field with all ones.
585 Udp6Header
->Checksum
= 0xffff;
589 // Set the checksum is zero if the ConfigData->StationAddress is unspecified
590 // and the Ipv6 will fill the correct value of this checksum.
592 Udp6Header
->Checksum
= 0;
597 // UdpSessionData is NULL, use the address and port information previously configured.
599 IP6_COPY_ADDRESS (&Destination
, &ConfigData
->RemoteAddress
);
601 HeadSum
= Instance
->HeadSum
;
603 // calculate the checksum.
605 Udp6Header
->Checksum
= Udp6Checksum (Packet
, HeadSum
);
606 if (Udp6Header
->Checksum
== 0) {
608 // If the calculated checksum is 0, fill the Checksum field with all ones.
610 Udp6Header
->Checksum
= 0xffff;
617 // Fill the IpIo Override data.
619 Override
.Ip6OverrideData
.Protocol
= EFI_IP_PROTO_UDP
;
620 Override
.Ip6OverrideData
.HopLimit
= ConfigData
->HopLimit
;
621 Override
.Ip6OverrideData
.FlowLabel
= 0;
624 // Save the token into the TxToken map.
626 Status
= NetMapInsertTail (&Instance
->TxTokens
, Token
, Packet
);
627 if (EFI_ERROR (Status
)) {
632 // Send out this datagram through IpIo.
634 if (UdpSessionData
!= NULL
){
635 IP6_COPY_ADDRESS (&(IpDestAddr
.v6
), &Destination
);
637 ZeroMem (&IpDestAddr
.v6
, sizeof (EFI_IPv6_ADDRESS
));
649 if (EFI_ERROR (Status
)) {
651 // Remove this token from the TxTokens.
653 Udp6RemoveToken (&Instance
->TxTokens
, Token
);
662 gBS
->RestoreTPL (OldTpl
);
669 This function places a completion token into the receive packet queue. This function
670 is always asynchronous.
672 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
673 @param[in] Token Pointer to a token that is associated with the
674 receive data descriptor.
676 @retval EFI_SUCCESS The receive completion token was cached.
677 @retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been
679 @retval EFI_NO_MAPPING When using a default address, configuration (DHCP,
680 BOOTP, RARP, etc.) is not finished yet.
681 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
682 This is NULL. Token is NULL. Token.Event is NULL.
683 @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued
684 due to a lack of system resources (usually
686 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
687 The EFI UDPv6 Protocol instance has been reset to
689 @retval EFI_ACCESS_DENIED A receive completion token with the same
690 Token.Event is already in the receive queue.
691 @retval EFI_NOT_READY The receive request could not be queued because
692 the receive queue is full.
698 IN EFI_UDP6_PROTOCOL
*This
,
699 IN EFI_UDP6_COMPLETION_TOKEN
*Token
703 UDP6_INSTANCE_DATA
*Instance
;
706 if ((This
== NULL
) || (Token
== NULL
) || (Token
->Event
== NULL
)) {
707 return EFI_INVALID_PARAMETER
;
710 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
712 if (!Instance
->Configured
) {
713 return EFI_NOT_STARTED
;
716 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
718 if (EFI_ERROR (NetMapIterate (&Instance
->RxTokens
, Udp6TokenExist
, Token
)) ||
719 EFI_ERROR (NetMapIterate (&Instance
->TxTokens
, Udp6TokenExist
, Token
))
722 // Return EFI_ACCESS_DENIED if the specified token is already in the TxTokens or
725 Status
= EFI_ACCESS_DENIED
;
729 Token
->Packet
.RxData
= NULL
;
732 // Save the token into the RxTokens map.
734 Status
= NetMapInsertTail (&Instance
->RxTokens
, Token
, NULL
);
735 if (EFI_ERROR (Status
)) {
736 Status
= EFI_NOT_READY
;
741 // If there is an icmp error, report it.
743 Udp6ReportIcmpError (Instance
);
746 // Try to delivered the received datagrams.
748 Udp6InstanceDeliverDgram (Instance
);
751 // Dispatch the DPC queued by the NotifyFunction of Token->Event.
757 gBS
->RestoreTPL (OldTpl
);
764 This function is used to abort a pending transmit or receive request.
766 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
767 @param[in] Token Pointer to a token that has been issued by
768 EFI_UDP6_PROTOCOL.Transmit() or
769 EFI_UDP6_PROTOCOL.Receive(). This parameter is
770 optional and may be NULL.
772 @retval EFI_SUCCESS The asynchronous I/O request was aborted, and
773 Token.Event was signaled. When Token is NULL, all
774 pending requests are aborted and their events are
776 @retval EFI_INVALID_PARAMETER This is NULL.
777 @retval EFI_NOT_STARTED This instance has not been started.
778 @retval EFI_NO_MAPPING When using the default address, configuration
779 (DHCP, BOOTP, RARP, etc.) is not finished yet.
780 @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O
781 request is not found in the transmit or receive
782 queue. It is either completed or not issued by
783 Transmit() or Receive().
789 IN EFI_UDP6_PROTOCOL
*This
,
790 IN EFI_UDP6_COMPLETION_TOKEN
*Token OPTIONAL
794 UDP6_INSTANCE_DATA
*Instance
;
798 return EFI_INVALID_PARAMETER
;
801 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
803 if (!Instance
->Configured
) {
804 return EFI_NOT_STARTED
;
807 OldTpl
= gBS
->RaiseTPL (TPL_CALLBACK
);
810 // Cancel the tokens specified by Token for this instance.
812 Status
= Udp6InstanceCancelToken (Instance
, Token
);
815 // Dispatch the DPC queued by the NotifyFunction of the canceled token's events.
819 gBS
->RestoreTPL (OldTpl
);
826 This function can be used by network drivers and applications to increase the rate that
827 data packets are moved between the communications device and the transmit/receive queues.
829 @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
831 @retval EFI_SUCCESS Incoming or outgoing data was processed.
832 @retval EFI_INVALID_PARAMETER This is NULL.
833 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
834 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or
841 IN EFI_UDP6_PROTOCOL
*This
844 UDP6_INSTANCE_DATA
*Instance
;
845 EFI_IP6_PROTOCOL
*Ip
;
848 return EFI_INVALID_PARAMETER
;
851 Instance
= UDP6_INSTANCE_DATA_FROM_THIS (This
);
852 Ip
= Instance
->IpInfo
->Ip
.Ip6
;
855 // Invode the Ip instance consumed by the udp instance to do the poll operation.
857 return Ip
->Poll (Ip
);