2 Definition of Neighbor Discovery support routines.
4 Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php.
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16 #ifndef __EFI_IP6_ND_H__
17 #define __EFI_IP6_ND_H__
19 #define IP6_GET_TICKS(Ms) (((Ms) + IP6_TIMER_INTERVAL_IN_MS - 1) / IP6_TIMER_INTERVAL_IN_MS)
22 IP6_INF_ROUTER_LIFETIME
= 0xFFFF,
24 IP6_MAX_RTR_SOLICITATION_DELAY
= 1000, ///< 1000 milliseconds
25 IP6_MAX_RTR_SOLICITATIONS
= 3,
26 IP6_RTR_SOLICITATION_INTERVAL
= 4000,
28 IP6_MIN_RANDOM_FACTOR_SCALED
= 1,
29 IP6_MAX_RANDOM_FACTOR_SCALED
= 3,
30 IP6_RANDOM_FACTOR_SCALE
= 2,
32 IP6_MAX_MULTICAST_SOLICIT
= 3,
33 IP6_MAX_UNICAST_SOLICIT
= 3,
34 IP6_MAX_ANYCAST_DELAY_TIME
= 1,
35 IP6_MAX_NEIGHBOR_ADV
= 3,
36 IP6_REACHABLE_TIME
= 30000,
37 IP6_RETRANS_TIMER
= 1000,
38 IP6_DELAY_FIRST_PROBE_TIME
= 5000,
40 IP6_MIN_LINK_MTU
= 1280,
41 IP6_MAX_LINK_MTU
= 1500,
43 IP6_IS_ROUTER_FLAG
= 0x80,
44 IP6_SOLICITED_FLAG
= 0x40,
45 IP6_OVERRIDE_FLAG
= 0x20,
47 IP6_M_ADDR_CONFIG_FLAG
= 0x80,
48 IP6_O_CONFIG_FLAG
= 0x40,
50 IP6_ON_LINK_FLAG
= 0x80,
51 IP6_AUTO_CONFIG_FLAG
= 0x40,
55 IP6_REDITECT_LENGTH
= 40,
56 IP6_DAD_ENTRY_SIGNATURE
= SIGNATURE_32 ('I', 'P', 'D', 'E')
65 typedef struct _IP6_ETHE_ADDR_OPTION
{
69 } IP6_ETHER_ADDR_OPTION
;
71 typedef struct _IP6_MTU_OPTION
{
78 typedef struct _IP6_PREFIX_INFO_OPTION
{
84 UINT32 PreferredLifetime
;
86 EFI_IPv6_ADDRESS Prefix
;
87 } IP6_PREFIX_INFO_OPTION
;
92 IN BOOLEAN IsDadPassed
,
93 IN EFI_IPv6_ADDRESS
*TargetAddress
,
97 typedef struct _IP6_DAD_ENTRY
{
104 IP6_ADDRESS_INFO
*AddressInfo
;
105 EFI_IPv6_ADDRESS Destination
;
106 IP6_DAD_CALLBACK Callback
;
110 typedef struct _IP6_DELAY_JOIN_LIST
{
112 UINT32 DelayTime
; ///< in tick per 50 milliseconds
113 IP6_INTERFACE
*Interface
;
114 IP6_ADDRESS_INFO
*AddressInfo
;
115 IP6_DAD_CALLBACK DadCallback
;
117 } IP6_DELAY_JOIN_LIST
;
119 typedef struct _IP6_NEIGHBOR_ENTRY
{
126 EFI_IPv6_ADDRESS Neighbor
;
127 EFI_MAC_ADDRESS LinkAddress
;
128 EFI_IP6_NEIGHBOR_STATE State
;
133 IP6_INTERFACE
*Interface
;
134 IP6_ARP_CALLBACK CallBack
;
135 } IP6_NEIGHBOR_ENTRY
;
137 typedef struct _IP6_DEFAULT_ROUTER
{
141 EFI_IPv6_ADDRESS Router
;
142 IP6_NEIGHBOR_ENTRY
*NeighborCache
;
143 } IP6_DEFAULT_ROUTER
;
145 typedef struct _IP6_PREFIX_LIST_ENTRY
{
148 UINT32 ValidLifetime
;
149 UINT32 PreferredLifetime
;
151 EFI_IPv6_ADDRESS Prefix
;
152 } IP6_PREFIX_LIST_ENTRY
;
155 Build a array of EFI_IP6_NEIGHBOR_CACHE to be returned to the caller. The number
156 of EFI_IP6_NEIGHBOR_CACHE is also returned.
158 @param[in] IpInstance The pointer to IP6_PROTOCOL instance.
159 @param[out] NeighborCount The number of returned neighbor cache entries.
160 @param[out] NeighborCache The pointer to the array of EFI_IP6_NEIGHBOR_CACHE.
162 @retval EFI_SUCCESS The EFI_IP6_NEIGHBOR_CACHE successfully built.
163 @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the route table.
167 Ip6BuildEfiNeighborCache (
168 IN IP6_PROTOCOL
*IpInstance
,
169 OUT UINT32
*NeighborCount
,
170 OUT EFI_IP6_NEIGHBOR_CACHE
**NeighborCache
174 Build a array of EFI_IP6_ADDRESS_INFO to be returned to the caller. The number
175 of prefix entries is also returned.
177 @param[in] IpInstance The pointer to IP6_PROTOCOL instance.
178 @param[out] PrefixCount The number of returned prefix entries.
179 @param[out] PrefixTable The pointer to the array of PrefixTable.
181 @retval EFI_SUCCESS The prefix table successfully built.
182 @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory for the prefix table.
186 Ip6BuildPrefixTable (
187 IN IP6_PROTOCOL
*IpInstance
,
188 OUT UINT32
*PrefixCount
,
189 OUT EFI_IP6_ADDRESS_INFO
**PrefixTable
193 Allocate and initialize an IP6 default router entry.
195 @param[in] IpSb The pointer to the IP6_SERVICE instance.
196 @param[in] Ip6Address The IPv6 address of the default router.
197 @param[in] RouterLifetime The lifetime associated with the default
198 router, in units of seconds.
200 @return NULL if it failed to allocate memory for the default router node.
201 Otherwise, point to the created default router node.
205 Ip6CreateDefaultRouter (
206 IN IP6_SERVICE
*IpSb
,
207 IN EFI_IPv6_ADDRESS
*Ip6Address
,
208 IN UINT16 RouterLifetime
212 Destroy an IP6 default router entry.
214 @param[in] IpSb The pointer to the IP6_SERVICE instance.
215 @param[in] DefaultRouter The to be destroyed IP6_DEFAULT_ROUTER.
219 Ip6DestroyDefaultRouter (
220 IN IP6_SERVICE
*IpSb
,
221 IN IP6_DEFAULT_ROUTER
*DefaultRouter
225 Clean an IP6 default router list.
227 @param[in] IpSb The pointer to the IP6_SERVICE instance.
231 Ip6CleanDefaultRouterList (
236 Search a default router node from an IP6 default router list.
238 @param[in] IpSb The pointer to the IP6_SERVICE instance.
239 @param[in] Ip6Address The IPv6 address of the to be searched default router node.
241 @return NULL if it failed to find the matching default router node.
242 Otherwise, point to the found default router node.
246 Ip6FindDefaultRouter (
247 IN IP6_SERVICE
*IpSb
,
248 IN EFI_IPv6_ADDRESS
*Ip6Address
252 The function to be called after DAD (Duplicate Address Detection) is performed.
254 @param[in] IsDadPassed If TRUE, the DAD operation succeed. Otherwise, the DAD operation failed.
255 @param[in] IpIf Points to the IP6_INTERFACE.
256 @param[in] DadEntry The DAD entry which already performed DAD.
261 IN BOOLEAN IsDadPassed
,
262 IN IP6_INTERFACE
*IpIf
,
263 IN IP6_DAD_ENTRY
*DadEntry
267 Create a DAD (Duplicate Address Detection) entry and queue it to be performed.
269 @param[in] IpIf Points to the IP6_INTERFACE.
270 @param[in] AddressInfo The address information which needs DAD performed.
271 @param[in] Callback The callback routine that will be called after DAD
272 is performed. This is an optional parameter that
274 @param[in] Context The opaque parameter for a DAD callback routine.
275 This is an optional parameter that may be NULL.
277 @retval EFI_SUCCESS The DAD entry was created and queued.
278 @retval EFI_OUT_OF_RESOURCES Failed to allocate the memory to complete the
285 IN IP6_INTERFACE
*IpIf
,
286 IN IP6_ADDRESS_INFO
*AddressInfo
,
287 IN IP6_DAD_CALLBACK Callback OPTIONAL
,
288 IN VOID
*Context OPTIONAL
292 Search IP6_DAD_ENTRY from the Duplicate Address Detection List.
294 @param[in] IpSb The pointer to the IP6_SERVICE instance.
295 @param[in] Target The address information which needs DAD performed .
296 @param[out] Interface If not NULL, output the IP6 interface that configures
297 the tentative address.
299 @return NULL if failed to find the matching DAD entry.
300 Otherwise, point to the found DAD entry.
305 IN IP6_SERVICE
*IpSb
,
306 IN EFI_IPv6_ADDRESS
*Target
,
307 OUT IP6_INTERFACE
**Interface OPTIONAL
311 Allocate and initialize a IP6 prefix list entry.
313 @param[in] IpSb The pointer to IP6_SERVICE instance.
314 @param[in] OnLinkOrAuto If TRUE, the entry is created for the on link prefix list.
315 Otherwise, it is created for the autoconfiguration prefix list.
316 @param[in] ValidLifetime The length of time in seconds that the prefix
317 is valid for the purpose of on-link determination.
318 @param[in] PreferredLifetime The length of time in seconds that addresses
319 generated from the prefix via stateless address
320 autoconfiguration remain preferred.
321 @param[in] PrefixLength The prefix length of the Prefix.
322 @param[in] Prefix The prefix address.
324 @return NULL if it failed to allocate memory for the prefix node. Otherwise, point
325 to the created or existing prefix list entry.
328 IP6_PREFIX_LIST_ENTRY
*
329 Ip6CreatePrefixListEntry (
330 IN IP6_SERVICE
*IpSb
,
331 IN BOOLEAN OnLinkOrAuto
,
332 IN UINT32 ValidLifetime
,
333 IN UINT32 PreferredLifetime
,
334 IN UINT8 PrefixLength
,
335 IN EFI_IPv6_ADDRESS
*Prefix
339 Destroy a IP6 prefix list entry.
341 @param[in] IpSb The pointer to IP6_SERVICE instance.
342 @param[in] PrefixEntry The to be destroyed prefix list entry.
343 @param[in] OnLinkOrAuto If TRUE, the entry is removed from on link prefix list.
344 Otherwise remove from autoconfiguration prefix list.
345 @param[in] ImmediateDelete If TRUE, remove the entry directly.
346 Otherwise, check the reference count to see whether
347 it should be removed.
351 Ip6DestroyPrefixListEntry (
352 IN IP6_SERVICE
*IpSb
,
353 IN IP6_PREFIX_LIST_ENTRY
*PrefixEntry
,
354 IN BOOLEAN OnLinkOrAuto
,
355 IN BOOLEAN ImmediateDelete
359 Search the list array to find an IP6 prefix list entry.
361 @param[in] IpSb The pointer to IP6_SERVICE instance.
362 @param[in] OnLinkOrAuto If TRUE, the search the link prefix list,
363 Otherwise search the autoconfiguration prefix list.
364 @param[in] PrefixLength The prefix length of the Prefix
365 @param[in] Prefix The prefix address.
367 @return NULL if cannot find the IP6 prefix list entry. Otherwise, return the
368 pointer to the IP6 prefix list entry.
371 IP6_PREFIX_LIST_ENTRY
*
372 Ip6FindPrefixListEntry (
373 IN IP6_SERVICE
*IpSb
,
374 IN BOOLEAN OnLinkOrAuto
,
375 IN UINT8 PrefixLength
,
376 IN EFI_IPv6_ADDRESS
*Prefix
380 Release the resource in prefix list table, and destroy the list entry and
381 corresponding addresses or route entries.
383 @param[in] IpSb The pointer to the IP6_SERVICE instance.
384 @param[in] ListHead The list entry head of the prefix list table.
388 Ip6CleanPrefixListTable (
389 IN IP6_SERVICE
*IpSb
,
390 IN LIST_ENTRY
*ListHead
394 Allocate and initialize an IP6 neighbor cache entry.
396 @param[in] IpSb The pointer to the IP6_SERVICE instance.
397 @param[in] CallBack The callback function to be called when
398 address resolution is finished.
399 @param[in] Ip6Address Points to the IPv6 address of the neighbor.
400 @param[in] LinkAddress Points to the MAC address of the neighbor.
403 @return NULL if failed to allocate memory for the neighbor cache entry.
404 Otherwise, point to the created neighbor cache entry.
408 Ip6CreateNeighborEntry (
409 IN IP6_SERVICE
*IpSb
,
410 IN IP6_ARP_CALLBACK CallBack
,
411 IN EFI_IPv6_ADDRESS
*Ip6Address
,
412 IN EFI_MAC_ADDRESS
*LinkAddress OPTIONAL
416 Search a IP6 neighbor cache entry.
418 @param[in] IpSb The pointer to the IP6_SERVICE instance.
419 @param[in] Ip6Address Points to the IPv6 address of the neighbor.
421 @return NULL if it failed to find the matching neighbor cache entry.
422 Otherwise, point to the found neighbor cache entry.
426 Ip6FindNeighborEntry (
427 IN IP6_SERVICE
*IpSb
,
428 IN EFI_IPv6_ADDRESS
*Ip6Address
432 Free a IP6 neighbor cache entry and remove all the frames on the address
433 resolution queue that pass the FrameToCancel. That is, either FrameToCancel
434 is NULL, or it returns true for the frame.
436 @param[in] IpSb The pointer to the IP6_SERVICE instance.
437 @param[in] NeighborCache The to be free neighbor cache entry.
438 @param[in] SendIcmpError If TRUE, send out ICMP error.
439 @param[in] FullFree If TRUE, remove the neighbor cache entry.
440 Otherwise remove the pending frames.
441 @param[in] IoStatus The status returned to the cancelled frames'
443 @param[in] FrameToCancel Function to select which frame to cancel.
444 This is an optional parameter that may be NULL.
445 @param[in] Context Opaque parameter to the FrameToCancel.
446 Ignored if FrameToCancel is NULL.
448 @retval EFI_INVALID_PARAMETER The input parameter is invalid.
449 @retval EFI_SUCCESS The operation finished successfully.
453 Ip6FreeNeighborEntry (
454 IN IP6_SERVICE
*IpSb
,
455 IN IP6_NEIGHBOR_ENTRY
*NeighborCache
,
456 IN BOOLEAN SendIcmpError
,
458 IN EFI_STATUS IoStatus
,
459 IN IP6_FRAME_TO_CANCEL FrameToCancel OPTIONAL
,
460 IN VOID
*Context OPTIONAL
464 Add Neighbor cache entries. It is a work function for EfiIp6Neighbors().
466 @param[in] IpSb The IP6 service binding instance.
467 @param[in] TargetIp6Address Pointer to Target IPv6 address.
468 @param[in] TargetLinkAddress Pointer to link-layer address of the target. Ignored if NULL.
469 @param[in] Timeout Time in 100-ns units that this entry will remain in the neighbor
470 cache. It will be deleted after Timeout. A value of zero means that
471 the entry is permanent. A non-zero value means that the entry is
473 @param[in] Override If TRUE, the cached link-layer address of the matching entry will
474 be overridden and updated; if FALSE, and if a
475 corresponding cache entry already existed, EFI_ACCESS_DENIED
478 @retval EFI_SUCCESS The neighbor cache entry has been added.
479 @retval EFI_OUT_OF_RESOURCES Could not add the entry to the neighbor cache
480 due to insufficient resources.
481 @retval EFI_NOT_FOUND TargetLinkAddress is NULL.
482 @retval EFI_ACCESS_DENIED The to-be-added entry is already defined in the neighbor cache,
483 and that entry is tagged as un-overridden (when DeleteFlag
489 IN IP6_SERVICE
*IpSb
,
490 IN EFI_IPv6_ADDRESS
*TargetIp6Address
,
491 IN EFI_MAC_ADDRESS
*TargetLinkAddress OPTIONAL
,
497 Delete or update Neighbor cache entries. It is a work function for EfiIp6Neighbors().
499 @param[in] IpSb The IP6 service binding instance.
500 @param[in] TargetIp6Address Pointer to Target IPv6 address.
501 @param[in] TargetLinkAddress Pointer to link-layer address of the target. Ignored if NULL.
502 @param[in] Timeout Time in 100-ns units that this entry will remain in the neighbor
503 cache. It will be deleted after Timeout. A value of zero means that
504 the entry is permanent. A non-zero value means that the entry is
506 @param[in] Override If TRUE, the cached link-layer address of the matching entry will
507 be overridden and updated; if FALSE, and if a
508 corresponding cache entry already existed, EFI_ACCESS_DENIED
511 @retval EFI_SUCCESS The neighbor cache entry has been updated or deleted.
512 @retval EFI_NOT_FOUND This entry is not in the neighbor cache.
517 IN IP6_SERVICE
*IpSb
,
518 IN EFI_IPv6_ADDRESS
*TargetIp6Address
,
519 IN EFI_MAC_ADDRESS
*TargetLinkAddress OPTIONAL
,
525 Process the Neighbor Solicitation message. The message may be sent for Duplicate
526 Address Detection or Address Resolution.
528 @param[in] IpSb The IP service that received the packet.
529 @param[in] Head The IP head of the message.
530 @param[in] Packet The content of the message with IP head removed.
532 @retval EFI_SUCCESS The packet processed successfully.
533 @retval EFI_INVALID_PARAMETER The packet is invalid.
534 @retval EFI_ICMP_ERROR The packet indicates that DAD is failed.
535 @retval Others Failed to process the packet.
539 Ip6ProcessNeighborSolicit (
540 IN IP6_SERVICE
*IpSb
,
541 IN EFI_IP6_HEADER
*Head
,
546 Process the Neighbor Advertisement message.
548 @param[in] IpSb The IP service that received the packet.
549 @param[in] Head The IP head of the message.
550 @param[in] Packet The content of the message with IP head removed.
552 @retval EFI_SUCCESS The packet processed successfully.
553 @retval EFI_INVALID_PARAMETER The packet is invalid.
554 @retval EFI_ICMP_ERROR The packet indicates that DAD is failed.
555 @retval Others Failed to process the packet.
559 Ip6ProcessNeighborAdvertise (
560 IN IP6_SERVICE
*IpSb
,
561 IN EFI_IP6_HEADER
*Head
,
566 Process the Router Advertisement message according to RFC4861.
568 @param[in] IpSb The IP service that received the packet.
569 @param[in] Head The IP head of the message.
570 @param[in] Packet The content of the message with the IP head removed.
572 @retval EFI_SUCCESS The packet processed successfully.
573 @retval EFI_INVALID_PARAMETER The packet is invalid.
574 @retval EFI_OUT_OF_RESOURCES Insufficient resources to complete the operation.
575 @retval Others Failed to process the packet.
579 Ip6ProcessRouterAdvertise (
580 IN IP6_SERVICE
*IpSb
,
581 IN EFI_IP6_HEADER
*Head
,
586 Process the ICMPv6 redirect message. Find the instance, then update
589 @param[in] IpSb The IP6 service binding instance that received
591 @param[in] Head The IP head of the received ICMPv6 packet.
592 @param[in] Packet The content of the ICMPv6 redirect packet with
595 @retval EFI_INVALID_PARAMETER The parameter is invalid.
596 @retval EFI_OUT_OF_RESOURCES Insuffcient resources to complete the
598 @retval EFI_SUCCESS Successfully updated the route caches.
603 IN IP6_SERVICE
*IpSb
,
604 IN EFI_IP6_HEADER
*Head
,
609 Generate router solicit message and send it out to Destination Address or
610 All Router Link Local scope multicast address.
612 @param[in] IpSb The IP service to send the packet.
613 @param[in] Interface If not NULL, points to the IP6 interface to send
615 @param[in] SourceAddress If not NULL, the source address of the message.
616 @param[in] DestinationAddress If not NULL, the destination address of the message.
617 @param[in] SourceLinkAddress If not NULL, the MAC address of the source.
618 A source link-layer address option will be appended
621 @retval EFI_OUT_OF_RESOURCES Insufficient resources to complete the operation.
622 @retval EFI_SUCCESS The router solicit message was successfully sent.
626 Ip6SendRouterSolicit (
627 IN IP6_SERVICE
*IpSb
,
628 IN IP6_INTERFACE
*Interface OPTIONAL
,
629 IN EFI_IPv6_ADDRESS
*SourceAddress OPTIONAL
,
630 IN EFI_IPv6_ADDRESS
*DestinationAddress OPTIONAL
,
631 IN EFI_MAC_ADDRESS
*SourceLinkAddress OPTIONAL
635 Generate the Neighbor Solicitation message and send it to the Destination Address.
637 @param[in] IpSb The IP service to send the packet
638 @param[in] SourceAddress The source address of the message.
639 @param[in] DestinationAddress The destination address of the message.
640 @param[in] TargetIp6Address The IP address of the target of the solicitation.
641 It must not be a multicast address.
642 @param[in] SourceLinkAddress The MAC address for the sender. If not NULL,
643 a source link-layer address option will be appended
646 @retval EFI_INVALID_PARAMETER Any input parameter is invalid.
647 @retval EFI_OUT_OF_RESOURCES Insufficient resources to complete the
649 @retval EFI_SUCCESS The Neighbor Advertise message was successfully sent.
653 Ip6SendNeighborSolicit (
654 IN IP6_SERVICE
*IpSb
,
655 IN EFI_IPv6_ADDRESS
*SourceAddress
,
656 IN EFI_IPv6_ADDRESS
*DestinationAddress
,
657 IN EFI_IPv6_ADDRESS
*TargetIp6Address
,
658 IN EFI_MAC_ADDRESS
*SourceLinkAddress OPTIONAL
662 Set the interface's address. This will trigger the DAD process for the
663 address to set. To set an already set address, the lifetimes wil be
664 updated to the new value passed in.
666 @param[in] Interface The interface to set the address.
667 @param[in] Ip6Addr The interface's to be assigned IPv6 address.
668 @param[in] IsAnycast If TRUE, the unicast IPv6 address is anycast.
669 Otherwise, it is not anycast.
670 @param[in] PrefixLength The prefix length of the Ip6Addr.
671 @param[in] ValidLifetime The valid lifetime for this address.
672 @param[in] PreferredLifetime The preferred lifetime for this address.
673 @param[in] DadCallback The caller's callback to trigger when DAD finishes.
674 This is an optional parameter that may be NULL.
675 @param[in] Context The context that will be passed to DadCallback.
676 This is an optional parameter that may be NULL.
678 @retval EFI_SUCCESS The interface is scheduled to be configured with
679 the specified address.
680 @retval EFI_OUT_OF_RESOURCES Failed to set the interface's address due to
686 IN IP6_INTERFACE
*Interface
,
687 IN EFI_IPv6_ADDRESS
*Ip6Addr
,
688 IN BOOLEAN IsAnycast
,
689 IN UINT8 PrefixLength
,
690 IN UINT32 ValidLifetime
,
691 IN UINT32 PreferredLifetime
,
692 IN IP6_DAD_CALLBACK DadCallback OPTIONAL
,
693 IN VOID
*Context OPTIONAL
697 The heartbeat timer of ND module in IP6_TIMER_INTERVAL_IN_MS milliseconds.
698 This time routine handles DAD module and neighbor state transition.
699 It is also responsible for sending out router solicitations.
701 @param[in] Event The IP6 service instance's heartbeat timer.
702 @param[in] Context The IP6 service instance.
707 Ip6NdFasterTimerTicking (
713 The heartbeat timer of ND module in 1 second. This time routine handles following
714 things: 1) maitain default router list; 2) maintain prefix options;
715 3) maintain route caches.
717 @param[in] IpSb The IP6 service binding instance.
726 Callback function when address resolution is finished. It will cancel
727 all the queued frames if the address resolution failed, or transmit them
728 if the request succeeded.
730 @param[in] Context The context of the callback, a pointer to IP6_NEIGHBOR_ENTRY.
739 Update the ReachableTime in IP6 service binding instance data, in milliseconds.
741 @param[in, out] IpSb Points to the IP6_SERVICE.
745 Ip6UpdateReachableTime (
746 IN OUT IP6_SERVICE
*IpSb