Udp6Impl.h@ 80721

Last change on this file since 80721 was 80721, checked in by vboxsync, 5 years ago
Devices/EFI/FirmwareNew: Start upgrade process to edk2-stable201908 (compiles on Windows and works to some extent), bugref:4643
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File size: 24.3 KB

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1	/** @file
2	Udp6 driver's whole implementation and internal data structures.
3
4	Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
5
6	SPDX-License-Identifier: BSD-2-Clause-Patent
7
8	**/
9
10	#ifndef _UDP6_IMPL_H_
11	#define _UDP6_IMPL_H_
12
13	#include <Uefi.h>
14
15	#include <Protocol/Ip6.h>
16	#include <Protocol/Udp6.h>
17
18	#include <Library/IpIoLib.h>
19	#include <Library/DebugLib.h>
20	#include <Library/UefiRuntimeServicesTableLib.h>
21	#include <Library/UefiBootServicesTableLib.h>
22	#include <Library/BaseLib.h>
23	#include <Library/UefiLib.h>
24	#include <Library/BaseMemoryLib.h>
25	#include <Library/MemoryAllocationLib.h>
26	#include <Library/DpcLib.h>
27	#include <Library/PrintLib.h>
28
29	#include "Udp6Driver.h"
30
31	extern EFI_COMPONENT_NAME2_PROTOCOL gUdp6ComponentName2;
32	extern EFI_COMPONENT_NAME_PROTOCOL gUdp6ComponentName;
33	extern EFI_UNICODE_STRING_TABLE *gUdp6ControllerNameTable;
34	extern EFI_SERVICE_BINDING_PROTOCOL mUdp6ServiceBinding;
35	extern EFI_UDP6_PROTOCOL mUdp6Protocol;
36	extern UINT16 mUdp6RandomPort;
37
38	//
39	// Define time out 50 milliseconds
40	//
41	#define UDP6_TIMEOUT_INTERVAL (50 * TICKS_PER_MS)
42	#define UDP6_HEADER_SIZE sizeof (EFI_UDP_HEADER)
43	#define UDP6_MAX_DATA_SIZE 65507
44	#define UDP6_PORT_KNOWN 1024
45
46	#define UDP6_SERVICE_DATA_SIGNATURE SIGNATURE_32 ('U', 'd', 'p', '6')
47	#define UDP6_INSTANCE_DATA_SIGNATURE SIGNATURE_32 ('U', 'd', 'p', 'S')
48
49	#define UDP6_SERVICE_DATA_FROM_THIS(a) \
50	CR ( \
51	(a), \
52	UDP6_SERVICE_DATA, \
53	ServiceBinding, \
54	UDP6_SERVICE_DATA_SIGNATURE \
55	)
56
57	#define UDP6_INSTANCE_DATA_FROM_THIS(a) \
58	CR ( \
59	(a), \
60	UDP6_INSTANCE_DATA, \
61	Udp6Proto, \
62	UDP6_INSTANCE_DATA_SIGNATURE \
63	)
64	//
65	// Udp6 service contest data
66	//
67	typedef struct _UDP6_SERVICE_DATA {
68	UINT32 Signature;
69	EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;
70	EFI_HANDLE ImageHandle;
71	EFI_HANDLE ControllerHandle;
72	LIST_ENTRY ChildrenList;
73	UINTN ChildrenNumber;
74	IP_IO *IpIo;
75	EFI_EVENT TimeoutEvent;
76	} UDP6_SERVICE_DATA;
77
78	typedef struct _UDP6_INSTANCE_DATA {
79	UINT32 Signature;
80	LIST_ENTRY Link;
81	UDP6_SERVICE_DATA *Udp6Service;
82	EFI_UDP6_PROTOCOL Udp6Proto;
83	EFI_UDP6_CONFIG_DATA ConfigData;
84	EFI_HANDLE ChildHandle;
85	BOOLEAN Configured;
86	BOOLEAN IsNoMapping;
87	NET_MAP TxTokens;
88	NET_MAP RxTokens;
89	NET_MAP McastIps;
90	LIST_ENTRY RcvdDgramQue;
91	LIST_ENTRY DeliveredDgramQue;
92	UINT16 HeadSum;
93	EFI_STATUS IcmpError;
94	IP_IO_IP_INFO *IpInfo;
95	BOOLEAN InDestroy;
96	} UDP6_INSTANCE_DATA;
97
98	typedef struct _UDP6_RXDATA_WRAP {
99	LIST_ENTRY Link;
100	NET_BUF *Packet;
101	UINT32 TimeoutTick;
102	EFI_UDP6_RECEIVE_DATA RxData;
103	} UDP6_RXDATA_WRAP;
104
105	typedef struct {
106	EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
107	UINTN NumberOfChildren;
108	EFI_HANDLE *ChildHandleBuffer;
109	} UDP6_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;
110
111	/**
112	Clean the Udp service context data.
113
114	@param[in, out] Udp6Service Pointer to the UDP6_SERVICE_DATA.
115
116	**/
117	VOID
118	Udp6CleanService (
119	IN OUT UDP6_SERVICE_DATA *Udp6Service
120	);
121
122	/**
123	Create the Udp service context data.
124
125	@param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.
126	@param[in] ImageHandle The image handle of this udp6 driver.
127	@param[in] ControllerHandle The controller handle this udp6 driver binds on.
128
129	@retval EFI_SUCCESS The udp6 service context data was created and
130	initialized.
131	@retval EFI_OUT_OF_RESOURCES Cannot allocate memory.
132	@retval Others An error condition occurred.
133
134	**/
135	EFI_STATUS
136	Udp6CreateService (
137	IN UDP6_SERVICE_DATA *Udp6Service,
138	IN EFI_HANDLE ImageHandle,
139	IN EFI_HANDLE ControllerHandle
140	);
141
142	/**
143	This function cleans the udp instance.
144
145	@param[in, out] Instance Pointer to the UDP6_INSTANCE_DATA to clean.
146
147	**/
148	VOID
149	Udp6CleanInstance (
150	IN OUT UDP6_INSTANCE_DATA *Instance
151	);
152
153	/**
154	This function intializes the new created udp instance.
155
156	@param[in] Udp6Service Pointer to the UDP6_SERVICE_DATA.
157	@param[in, out] Instance Pointer to the un-initialized UDP6_INSTANCE_DATA.
158
159	**/
160	VOID
161	Udp6InitInstance (
162	IN UDP6_SERVICE_DATA *Udp6Service,
163	IN OUT UDP6_INSTANCE_DATA *Instance
164	);
165
166	/**
167	This function reports the received ICMP error.
168
169	@param[in] Instance Pointer to the udp instance context data.
170
171	**/
172	VOID
173	Udp6ReportIcmpError (
174	IN UDP6_INSTANCE_DATA *Instance
175	);
176
177	/**
178	This function copies the current operational settings of this EFI UDPv6 Protocol
179	instance into user-supplied buffers. This function is used optionally to retrieve
180	the operational mode data of underlying networks or drivers.
181
182	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
183	@param[out] Udp6ConfigData The buffer in which the current UDP configuration
184	data is returned. This parameter is optional and
185	may be NULL.
186	@param[out] Ip6ModeData The buffer in which the current EFI IPv6 Protocol
187	mode data is returned. This parameter is optional
188	and may be NULL.
189	@param[out] MnpConfigData The buffer in which the current managed network
190	configuration data is returned. This parameter
191	is optional and may be NULL.
192	@param[out] SnpModeData The buffer in which the simple network mode data
193	is returned. This parameter is optional and may be NULL.
194
195	@retval EFI_SUCCESS The mode data was read.
196	@retval EFI_NOT_STARTED When Udp6ConfigData is queried, no configuration
197	data is available because this instance has not
198	been started.
199	@retval EFI_INVALID_PARAMETER This is NULL.
200
201	**/
202	EFI_STATUS
203	EFIAPI
204	Udp6GetModeData (
205	IN EFI_UDP6_PROTOCOL *This,
206	OUT EFI_UDP6_CONFIG_DATA *Udp6ConfigData OPTIONAL,
207	OUT EFI_IP6_MODE_DATA *Ip6ModeData OPTIONAL,
208	OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,
209	OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL
210	);
211
212	/**
213	This function is used to do the following:
214	Initialize and start this instance of the EFI UDPv6 Protocol.
215	Change the filtering rules and operational parameters.
216	Reset this instance of the EFI UDPv6 Protocol.
217
218	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
219	@param[in] UdpConfigData Pointer to the buffer to set the configuration
220	data. This parameter is optional and may be NULL.
221
222	@retval EFI_SUCCESS The configuration settings were set, changed, or
223	reset successfully.
224	@retval EFI_NO_MAPPING When the UdpConifgData.UseAnyStationAddress is set
225	to true and there is no address available for IP6
226	driver to binding source address to this
227	instance.
228	@retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
229	This is NULL.
230	UdpConfigData.StationAddress is not a valid
231	unicast IPv6 address.
232	UdpConfigData.RemoteAddress is not a valid unicast
233	IPv6 address, if it is not zero.
234	@retval EFI_ALREADY_STARTED The EFI UDPv6 Protocol instance is already
235	started/configured and must be stopped/reset
236	before it can be reconfigured. Only TrafficClass,
237	HopLimit, ReceiveTimeout, and TransmitTimeout can
238	be reconfigured without stopping the current
239	instance of the EFI UDPv6 Protocol.
240	@retval EFI_ACCESS_DENIED UdpConfigData.AllowDuplicatePort is FALSE, and
241	UdpConfigData.StationPort is already used by another
242	instance.
243	@retval EFI_OUT_OF_RESOURCES The EFI UDPv6 Protocol driver cannot allocate
244	memory for this EFI UDPv6 Protocol instance.
245	@retval EFI_DEVICE_ERROR An unexpected network or system error occurred, and
246	this instance was not opened.
247
248	**/
249	EFI_STATUS
250	EFIAPI
251	Udp6Configure (
252	IN EFI_UDP6_PROTOCOL *This,
253	IN EFI_UDP6_CONFIG_DATA *UdpConfigData OPTIONAL
254	);
255
256	/**
257	This function places a sending request to this instance of the EFI UDPv6 Protocol,
258	alongside the transmit data that was filled by the user.
259
260	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
261	@param[in] Token Pointer to the completion token that will be
262	placed into the transmit queue.
263
264	@retval EFI_SUCCESS The data has been queued for transmission.
265	@retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been
266	started.
267	@retval EFI_NO_MAPPING The under-layer IPv6 driver was responsible for
268	choosing a source address for this instance, but
269	no source address was available for use.
270	@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
271	This is NULL. Token is NULL. Token.Event is NULL.
272	Token.Packet.TxData is NULL.
273	Token.Packet.TxData.FragmentCount is zero.
274	Token.Packet.TxData.DataLength is not equal to the
275	sum of fragment lengths.
276	One or more of the
277	Token.Packet.TxData.FragmentTable[]
278	.FragmentLength fields is zero.
279	One or more of the
280	Token.Packet.TxData.FragmentTable[]
281	.FragmentBuffer fields is NULL.
282	One or more of the
283	Token.Packet.TxData.UdpSessionData.
284	DestinationAddres are not valid unicast IPv6
285	addresses, if the UdpSessionData is not NULL.
286	Token.Packet.TxData.UdpSessionData.
287	DestinationAddres is NULL
288	Token.Packet.TxData.UdpSessionData.
289	DestinatioPort is zero.
290	Token.Packet.TxData.UdpSessionData is
291	NULL and this instance's
292	UdpConfigData.RemoteAddress is unspecified.
293	@retval EFI_ACCESS_DENIED The transmit completion token with the same
294	Token.Event is already in the transmit queue.
295	@retval EFI_NOT_READY The completion token could not be queued because
296	the transmit queue is full.
297	@retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.
298	@retval EFI_NOT_FOUND There is no route to the destination network or
299	address.
300	@retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP
301	packet size. Or the length of the IP header + UDP
302	header + data length is greater than MTU if
303	DoNotFragment is TRUE.
304
305	**/
306	EFI_STATUS
307	EFIAPI
308	Udp6Transmit (
309	IN EFI_UDP6_PROTOCOL *This,
310	IN EFI_UDP6_COMPLETION_TOKEN *Token
311	);
312
313	/**
314	This function places a completion token into the receive packet queue. This function
315	is always asynchronous.
316
317	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
318	@param[in] Token Pointer to a token that is associated with the
319	receive data descriptor.
320
321	@retval EFI_SUCCESS The receive completion token is cached.
322	@retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been
323	started.
324	@retval EFI_NO_MAPPING When using a default address, configuration (DHCP,
325	BOOTP, RARP, etc.) is not finished yet.
326	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
327	This is NULL.
328	Token is NULL.
329	Token.Event is NULL.
330	@retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued
331	due to a lack of system resources (usually
332	memory).
333	@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
334	The EFI UDPv6 Protocol instance has been reset to
335	startup defaults.
336	@retval EFI_ACCESS_DENIED A receive completion token with the same
337	Token.Event is already in the receive queue.
338	@retval EFI_NOT_READY The receive request could not be queued because
339	the receive queue is full.
340
341	**/
342	EFI_STATUS
343	EFIAPI
344	Udp6Receive (
345	IN EFI_UDP6_PROTOCOL *This,
346	IN EFI_UDP6_COMPLETION_TOKEN *Token
347	);
348
349	/**
350	This function is used to abort a pending transmit or receive request.
351
352	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
353	@param[in] Token Pointer to a token that has been issued by
354	EFI_UDP6_PROTOCOL.Transmit() or
355	EFI_UDP6_PROTOCOL.Receive(). This parameter is
356	optional and may be NULL.
357
358	@retval EFI_SUCCESS The asynchronous I/O request is aborted and
359	Token.Event is signaled. When Token is NULL, all
360	pending requests are aborted and their events are
361	signaled.
362	@retval EFI_INVALID_PARAMETER This is NULL.
363	@retval EFI_NOT_STARTED This instance has not been started.
364	@retval EFI_NO_MAPPING When using the default address, configuration
365	(DHCP, BOOTP, RARP, etc.) is not finished yet.
366	@retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O
367	request is not found in the transmit or receive
368	queue. It either completed or was not issued by
369	Transmit() or Receive().
370
371	**/
372	EFI_STATUS
373	EFIAPI
374	Udp6Cancel (
375	IN EFI_UDP6_PROTOCOL *This,
376	IN EFI_UDP6_COMPLETION_TOKEN *Token OPTIONAL
377	);
378
379	/**
380	This function can be used by network drivers and applications to increase the rate that
381	data packets are moved between the communications device and the transmit/receive queues.
382
383	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
384
385	@retval EFI_SUCCESS Incoming or outgoing data was processed.
386	@retval EFI_INVALID_PARAMETER This is NULL.
387	@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
388	@retval EFI_TIMEOUT Data was dropped out of the transmit and/or
389	receive queue.
390
391	**/
392	EFI_STATUS
393	EFIAPI
394	Udp6Poll (
395	IN EFI_UDP6_PROTOCOL *This
396	);
397
398	/**
399	This function is used to enable and disable the multicast group filtering.
400
401	@param[in] This Pointer to the EFI_UDP6_PROTOCOL instance.
402	@param[in] JoinFlag Set to TRUE to join a multicast group. Set to
403	FALSE to leave one or all multicast groups.
404	@param[in] MulticastAddress Pointer to multicast group address to join or
405	leave. This parameter is optional and may be NULL.
406
407	@retval EFI_SUCCESS The operation completed successfully.
408	@retval EFI_NOT_STARTED The EFI UDPv6 Protocol instance has not been
409	started.
410	@retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group.
411	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
412	This is NULL. JoinFlag is TRUE and
413	MulticastAddress is NULL. JoinFlag is TRUE and
414	*MulticastAddress is not a valid multicast
415	address.
416	@retval EFI_ALREADY_STARTED The group address is already in the group table
417	(when JoinFlag is TRUE).
418	@retval EFI_NOT_FOUND The group address is not in the group table (when
419	JoinFlag is FALSE).
420	@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
421
422	**/
423	EFI_STATUS
424	EFIAPI
425	Udp6Groups (
426	IN EFI_UDP6_PROTOCOL *This,
427	IN BOOLEAN JoinFlag,
428	IN EFI_IPv6_ADDRESS *MulticastAddress OPTIONAL
429	);
430
431	/**
432	This function tries to bind the udp instance according to the configured port
433	allocation stragety.
434
435	@param[in] InstanceList Pointer to the head of the list linking the udp
436	instances.
437	@param[in] ConfigData Pointer to the ConfigData of the instance to be
438	bound.
439
440	@retval EFI_SUCCESS The bound operation completed successfully.
441	@retval EFI_ACCESS_DENIED The <Address, Port> specified by the ConfigData is
442	already used by another instance.
443	@retval EFI_OUT_OF_RESOURCES No available port resources.
444
445	**/
446	EFI_STATUS
447	Udp6Bind (
448	IN LIST_ENTRY *InstanceList,
449	IN EFI_UDP6_CONFIG_DATA *ConfigData
450	);
451
452	/**
453	This function builds the Ip6 configdata from the Udp6ConfigData.
454
455	@param[in] Udp6ConfigData Pointer to the EFI_UDP6_CONFIG_DATA.
456	@param[in, out] Ip6ConfigData Pointer to the EFI_IP6_CONFIG_DATA.
457
458	**/
459	VOID
460	Udp6BuildIp6ConfigData (
461	IN EFI_UDP6_CONFIG_DATA *Udp6ConfigData,
462	IN OUT EFI_IP6_CONFIG_DATA *Ip6ConfigData
463	);
464
465	/**
466	This function checks whether the specified Token duplicates with the one in the Map.
467
468	@param[in] Map Pointer to the NET_MAP.
469	@param[in] Item Pointer to the NET_MAP_ITEM contain the pointer to
470	the Token.
471	@param[in] Context Pointer to the Token to be checked.
472
473	@retval EFI_SUCCESS The Token specified by Context differs from the
474	one in the Item.
475	@retval EFI_ACCESS_DENIED The Token duplicates with the one in the Item.
476
477	**/
478	EFI_STATUS
479	EFIAPI
480	Udp6TokenExist (
481	IN NET_MAP *Map,
482	IN NET_MAP_ITEM *Item,
483	IN VOID *Context
484	);
485
486	/**
487	This function removes the specified Token from the TokenMap.
488
489	@param[in] TokenMap Pointer to the NET_MAP containing the tokens.
490	@param[in] Token Pointer to the Token to be removed.
491
492	@retval EFI_SUCCESS The specified Token is removed from the TokenMap.
493	@retval EFI_NOT_FOUND The specified Token is not found in the TokenMap.
494
495	**/
496	EFI_STATUS
497	Udp6RemoveToken (
498	IN NET_MAP *TokenMap,
499	IN EFI_UDP6_COMPLETION_TOKEN *Token
500	);
501
502	/**
503	This function is used to check whether the NewConfigData has any un-reconfigurable
504	parameters changed compared to the OldConfigData.
505
506	@param[in] OldConfigData Pointer to the current ConfigData the udp instance
507	uses.
508	@param[in] NewConfigData Pointer to the new ConfigData.
509
510	@retval TRUE The instance is reconfigurable according to NewConfigData.
511	@retval FALSE The instance is not reconfigurable according to NewConfigData.
512
513	**/
514	BOOLEAN
515	Udp6IsReconfigurable (
516	IN EFI_UDP6_CONFIG_DATA *OldConfigData,
517	IN EFI_UDP6_CONFIG_DATA *NewConfigData
518	);
519
520	/**
521	This function removes the multicast group specified by Arg from the Map.
522
523	@param[in] Map Pointer to the NET_MAP.
524	@param[in] Item Pointer to the NET_MAP_ITEM.
525	@param[in] Arg Pointer to the Arg. It is the pointer to a
526	multicast IPv6 Address. This parameter is
527	optional and may be NULL.
528
529	@retval EFI_SUCCESS The multicast address is removed.
530	@retval EFI_ABORTED The specified multicast address is removed, and the
531	Arg is not NULL.
532
533	**/
534	EFI_STATUS
535	EFIAPI
536	Udp6LeaveGroup (
537	IN NET_MAP *Map,
538	IN NET_MAP_ITEM *Item,
539	IN VOID *Arg OPTIONAL
540	);
541
542	/**
543	This function validates the TxToken, it returns the error code according to the spec.
544
545	@param[in] Instance Pointer to the udp instance context data.
546	@param[in] TxToken Pointer to the token to be checked.
547
548	@retval EFI_SUCCESS The TxToken is valid.
549	@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
550	Token.Event is NULL.
551	Token.Packet.TxData is NULL.
552	Token.Packet.TxData.FragmentCount is zero.
553	Token.Packet.TxData.DataLength is not equal to the
554	sum of fragment lengths.
555	One or more of the
556	Token.Packet.TxData.FragmentTable[].FragmentLength
557	fields is zero.
558	One or more of the
559	Token.Packet.TxData.FragmentTable[].FragmentBuffer
560	fields is NULL.
561	UdpSessionData.DestinationAddress are not valid
562	unicast IPv6 addresses if the UdpSessionData is
563	not NULL.
564	UdpSessionData.DestinationPort and
565	ConfigData.RemotePort are all zero if the
566	UdpSessionData is not NULL.
567	@retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP
568	packet size.
569
570	**/
571	EFI_STATUS
572	Udp6ValidateTxToken (
573	IN UDP6_INSTANCE_DATA *Instance,
574	IN EFI_UDP6_COMPLETION_TOKEN *TxToken
575	);
576
577	/**
578	This function is a dummy ext-free function for the NET_BUF created for the output
579	udp datagram.
580
581	@param[in] Context Pointer to the context data.
582
583	**/
584	VOID
585	EFIAPI
586	Udp6NetVectorExtFree (
587	IN VOID *Context
588	);
589
590	/**
591	This function calculates the checksum for the Packet, utilizing the pre-calculated
592	pseudo header to reduce overhead.
593
594	@param[in] Packet Pointer to the NET_BUF contains the udp datagram.
595	@param[in] HeadSum Checksum of the pseudo header execpt the length
596	field.
597
598	@return The 16-bit checksum of this udp datagram.
599
600	**/
601	UINT16
602	Udp6Checksum (
603	IN NET_BUF *Packet,
604	IN UINT16 HeadSum
605	);
606
607	/**
608	This function delivers the received datagrams to the specified instance.
609
610	@param[in] Instance Pointer to the instance context data.
611
612	**/
613	VOID
614	Udp6InstanceDeliverDgram (
615	IN UDP6_INSTANCE_DATA *Instance
616	);
617
618	/**
619	Cancel Udp6 tokens from the Udp6 instance.
620
621	@param[in] Instance Pointer to the udp instance context data.
622	@param[in] Token Pointer to the token to be canceled. If NULL, all
623	tokens in this instance will be cancelled.
624	This parameter is optional and may be NULL.
625
626	@retval EFI_SUCCESS The Token is cancelled.
627	@retval EFI_NOT_FOUND The Token is not found.
628
629	**/
630	EFI_STATUS
631	Udp6InstanceCancelToken (
632	IN UDP6_INSTANCE_DATA *Instance,
633	IN EFI_UDP6_COMPLETION_TOKEN *Token OPTIONAL
634	);
635
636	/**
637	This function removes all the Wrap datas in the RcvdDgramQue.
638
639	@param[in] Instance Pointer to the Udp6 Instance.
640
641	**/
642	VOID
643	Udp6FlushRcvdDgram (
644	IN UDP6_INSTANCE_DATA *Instance
645	);
646
647	#endif
648

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source: vbox/trunk/src/VBox/Devices/EFI/FirmwareNew/NetworkPkg/Udp6Dxe/Udp6Impl.h@ 80721

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