#include "Ip6Impl.h"

Functions
EFI_STATUS	Ip6UpdateReachableTime (IN OUT IP6_SERVICE *IpSb)

EFI_STATUS	Ip6BuildEfiNeighborCache (IN IP6_PROTOCOL IpInstance, OUT UINT32 NeighborCount, OUT EFI_IP6_NEIGHBOR_CACHE **NeighborCache)

EFI_STATUS	Ip6BuildPrefixTable (IN IP6_PROTOCOL IpInstance, OUT UINT32 PrefixCount, OUT EFI_IP6_ADDRESS_INFO **PrefixTable)

IP6_PREFIX_LIST_ENTRY *	Ip6CreatePrefixListEntry (IN IP6_SERVICE IpSb, IN BOOLEAN OnLinkOrAuto, IN UINT32 ValidLifetime, IN UINT32 PreferredLifetime, IN UINT8 PrefixLength, IN EFI_IPv6_ADDRESS Prefix)

VOID	Ip6DestroyPrefixListEntry (IN IP6_SERVICE IpSb, IN IP6_PREFIX_LIST_ENTRY PrefixEntry, IN BOOLEAN OnLinkOrAuto, IN BOOLEAN ImmediateDelete)

IP6_PREFIX_LIST_ENTRY *	Ip6FindPrefixListEntry (IN IP6_SERVICE IpSb, IN BOOLEAN OnLinkOrAuto, IN UINT8 PrefixLength, IN EFI_IPv6_ADDRESS Prefix)

VOID	Ip6CleanPrefixListTable (IN IP6_SERVICE IpSb, IN LIST_ENTRY ListHead)

VOID	Ip6OnArpResolved (IN VOID *Context)

IP6_NEIGHBOR_ENTRY *	Ip6CreateNeighborEntry (IN IP6_SERVICE IpSb, IN IP6_ARP_CALLBACK CallBack, IN EFI_IPv6_ADDRESS Ip6Address, IN EFI_MAC_ADDRESS *LinkAddress OPTIONAL)

IP6_NEIGHBOR_ENTRY *	Ip6FindNeighborEntry (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS Ip6Address)

EFI_STATUS	Ip6FreeNeighborEntry (IN IP6_SERVICE IpSb, IN IP6_NEIGHBOR_ENTRY NeighborCache, IN BOOLEAN SendIcmpError, IN BOOLEAN FullFree, IN EFI_STATUS IoStatus, IN IP6_FRAME_TO_CANCEL FrameToCancel OPTIONAL, IN VOID *Context OPTIONAL)

IP6_DEFAULT_ROUTER *	Ip6CreateDefaultRouter (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS Ip6Address, IN UINT16 RouterLifetime)

VOID	Ip6DestroyDefaultRouter (IN IP6_SERVICE IpSb, IN IP6_DEFAULT_ROUTER DefaultRouter)

VOID	Ip6CleanDefaultRouterList (IN IP6_SERVICE *IpSb)

IP6_DEFAULT_ROUTER *	Ip6FindDefaultRouter (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS Ip6Address)

VOID	Ip6OnDADFinished (IN BOOLEAN IsDadPassed, IN IP6_INTERFACE IpIf, IN IP6_DAD_ENTRY DadEntry)

EFI_STATUS	Ip6InitDADProcess (IN IP6_INTERFACE IpIf, IN IP6_ADDRESS_INFO AddressInfo, IN IP6_DAD_CALLBACK Callback OPTIONAL, IN VOID *Context OPTIONAL)

IP6_DAD_ENTRY *	Ip6FindDADEntry (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS Target, OUT IP6_INTERFACE **Interface OPTIONAL)

EFI_STATUS	Ip6SendRouterSolicit (IN IP6_SERVICE IpSb, IN IP6_INTERFACE Interface OPTIONAL, IN EFI_IPv6_ADDRESS SourceAddress OPTIONAL, IN EFI_IPv6_ADDRESS DestinationAddress OPTIONAL, IN EFI_MAC_ADDRESS *SourceLinkAddress OPTIONAL)

EFI_STATUS	Ip6SendNeighborAdvertise (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS SourceAddress, IN EFI_IPv6_ADDRESS DestinationAddress, IN EFI_IPv6_ADDRESS TargetIp6Address, IN EFI_MAC_ADDRESS *TargetLinkAddress, IN BOOLEAN IsRouter, IN BOOLEAN Override, IN BOOLEAN Solicited)

EFI_STATUS	Ip6SendNeighborSolicit (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS SourceAddress, IN EFI_IPv6_ADDRESS DestinationAddress, IN EFI_IPv6_ADDRESS TargetIp6Address, IN EFI_MAC_ADDRESS *SourceLinkAddress OPTIONAL)

EFI_STATUS	Ip6ProcessNeighborSolicit (IN IP6_SERVICE IpSb, IN EFI_IP6_HEADER Head, IN NET_BUF *Packet)

EFI_STATUS	Ip6ProcessNeighborAdvertise (IN IP6_SERVICE IpSb, IN EFI_IP6_HEADER Head, IN NET_BUF *Packet)

EFI_STATUS	Ip6ProcessRouterAdvertise (IN IP6_SERVICE IpSb, IN EFI_IP6_HEADER Head, IN NET_BUF *Packet)

EFI_STATUS	Ip6ProcessRedirect (IN IP6_SERVICE IpSb, IN EFI_IP6_HEADER Head, IN NET_BUF *Packet)

EFI_STATUS	Ip6AddNeighbor (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS TargetIp6Address, IN EFI_MAC_ADDRESS *TargetLinkAddress OPTIONAL, IN UINT32 Timeout, IN BOOLEAN Override)

EFI_STATUS	Ip6DelNeighbor (IN IP6_SERVICE IpSb, IN EFI_IPv6_ADDRESS TargetIp6Address, IN EFI_MAC_ADDRESS *TargetLinkAddress OPTIONAL, IN UINT32 Timeout, IN BOOLEAN Override)

VOID EFIAPI	Ip6NdFasterTimerTicking (IN EFI_EVENT Event, IN VOID *Context)

VOID	Ip6NdTimerTicking (IN IP6_SERVICE *IpSb)

Variables
EFI_MAC_ADDRESS	mZeroMacAddress

Detailed Description

Implementation of Neighbor Discovery support routines.

Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.
Copyright (c) Microsoft Corporation SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file Ip6Nd.c.

Function Documentation

◆ Ip6AddNeighbor()

EFI_STATUS Ip6AddNeighbor	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	TargetIp6Address,
		IN EFI_MAC_ADDRESS *TargetLinkAddress	OPTIONAL,
		IN UINT32	Timeout,
		IN BOOLEAN	Override
	)

Add Neighbor cache entries. It is a work function for EfiIp6Neighbors().

Parameters

[in]	IpSb	The IP6 service binding instance.
[in]	TargetIp6Address	Pointer to Target IPv6 address.
[in]	TargetLinkAddress	Pointer to link-layer address of the target. Ignored if NULL.
[in]	Timeout	Time in 100-ns units that this entry will remain in the neighbor cache. It will be deleted after Timeout. A value of zero means that the entry is permanent. A non-zero value means that the entry is dynamic.
[in]	Override	If TRUE, the cached link-layer address of the matching entry will be overridden and updated; if FALSE, and if a corresponding cache entry already existed, EFI_ACCESS_DENIED will be returned.

Return values

EFI_SUCCESS	The neighbor cache entry has been added.
EFI_OUT_OF_RESOURCES	Could not add the entry to the neighbor cache due to insufficient resources.
EFI_NOT_FOUND	TargetLinkAddress is NULL.
EFI_ACCESS_DENIED	The to-be-added entry is already defined in the neighbor cache, and that entry is tagged as un-overridden (when DeleteFlag is FALSE).

Definition at line 2703 of file Ip6Nd.c.

◆ Ip6BuildEfiNeighborCache()

EFI_STATUS Ip6BuildEfiNeighborCache	(	IN IP6_PROTOCOL *	IpInstance,
		OUT UINT32 *	NeighborCount,
		OUT EFI_IP6_NEIGHBOR_CACHE **	NeighborCache
	)

Build a array of EFI_IP6_NEIGHBOR_CACHE to be returned to the caller. The number of EFI_IP6_NEIGHBOR_CACHE is also returned.

Parameters

[in]	IpInstance	The pointer to IP6_PROTOCOL instance.
[out]	NeighborCount	The number of returned neighbor cache entries.
[out]	NeighborCache	The pointer to the array of EFI_IP6_NEIGHBOR_CACHE.

Return values

EFI_SUCCESS	The EFI_IP6_NEIGHBOR_CACHE successfully built.
EFI_OUT_OF_RESOURCES	Failed to allocate the memory for the route table.

Definition at line 56 of file Ip6Nd.c.

◆ Ip6BuildPrefixTable()

EFI_STATUS Ip6BuildPrefixTable	(	IN IP6_PROTOCOL *	IpInstance,
		OUT UINT32 *	PrefixCount,
		OUT EFI_IP6_ADDRESS_INFO **	PrefixTable
	)

Build a array of EFI_IP6_ADDRESS_INFO to be returned to the caller. The number of prefix entries is also returned.

Parameters

[in]	IpInstance	The pointer to IP6_PROTOCOL instance.
[out]	PrefixCount	The number of returned prefix entries.
[out]	PrefixTable	The pointer to the array of PrefixTable.

Return values

EFI_SUCCESS	The prefix table successfully built.
EFI_OUT_OF_RESOURCES	Failed to allocate the memory for the prefix table.

Definition at line 122 of file Ip6Nd.c.

◆ Ip6CleanDefaultRouterList()

VOID Ip6CleanDefaultRouterList ( IN IP6_SERVICE * IpSb )

Clean an IP6 default router list.

Parameters

[in] IpSb The pointer to the IP6_SERVICE instance.

Definition at line 765 of file Ip6Nd.c.

◆ Ip6CleanPrefixListTable()

VOID Ip6CleanPrefixListTable	(	IN IP6_SERVICE *	IpSb,
		IN LIST_ENTRY *	ListHead
	)

Release the resource in the prefix list table, and destroy the list entry and corresponding addresses or route entries.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	ListHead	The list entry head of the prefix list table.

Definition at line 391 of file Ip6Nd.c.

◆ Ip6CreateDefaultRouter()

IP6_DEFAULT_ROUTER * Ip6CreateDefaultRouter	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	Ip6Address,
		IN UINT16	RouterLifetime
	)

Allocate and initialize an IP6 default router entry.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	Ip6Address	The IPv6 address of the default router.
[in]	RouterLifetime	The lifetime associated with the default router, in units of seconds.

Returns: NULL if it failed to allocate memory for the default router node. Otherwise, point to the created default router node.

Definition at line 691 of file Ip6Nd.c.

◆ Ip6CreateNeighborEntry()

IP6_NEIGHBOR_ENTRY * Ip6CreateNeighborEntry	(	IN IP6_SERVICE *	IpSb,
		IN IP6_ARP_CALLBACK	CallBack,
		IN EFI_IPv6_ADDRESS *	Ip6Address,
		IN EFI_MAC_ADDRESS *LinkAddress	OPTIONAL
	)

Allocate and initialize an IP6 neighbor cache entry.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	CallBack	The callback function to be called when address resolution is finished.
[in]	Ip6Address	Points to the IPv6 address of the neighbor.
[in]	LinkAddress	Points to the MAC address of the neighbor. Ignored if NULL.

Returns: NULL if failed to allocate memory for the neighbor cache entry. Otherwise, point to the created neighbor cache entry.

Definition at line 505 of file Ip6Nd.c.

◆ Ip6CreatePrefixListEntry()

IP6_PREFIX_LIST_ENTRY * Ip6CreatePrefixListEntry	(	IN IP6_SERVICE *	IpSb,
		IN BOOLEAN	OnLinkOrAuto,
		IN UINT32	ValidLifetime,
		IN UINT32	PreferredLifetime,
		IN UINT8	PrefixLength,
		IN EFI_IPv6_ADDRESS *	Prefix
	)

Allocate and initialize a IP6 prefix list entry.

Parameters

[in]	IpSb	The pointer to IP6_SERVICE instance.
[in]	OnLinkOrAuto	If TRUE, the entry is created for the on link prefix list. Otherwise, it is created for the autoconfiguration prefix list.
[in]	ValidLifetime	The length of time in seconds that the prefix is valid for the purpose of on-link determination.
[in]	PreferredLifetime	The length of time in seconds that addresses generated from the prefix via stateless address autoconfiguration remain preferred.
[in]	PrefixLength	The prefix length of the Prefix.
[in]	Prefix	The prefix address.

Returns: NULL if it failed to allocate memory for the prefix node. Otherwise, point to the created or existing prefix list entry.

Definition at line 191 of file Ip6Nd.c.

◆ Ip6DelNeighbor()

EFI_STATUS Ip6DelNeighbor	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	TargetIp6Address,
		IN EFI_MAC_ADDRESS *TargetLinkAddress	OPTIONAL,
		IN UINT32	Timeout,
		IN BOOLEAN	Override
	)

Delete or update Neighbor cache entries. It is a work function for EfiIp6Neighbors().

Parameters

[in]	IpSb	The IP6 service binding instance.
[in]	TargetIp6Address	Pointer to Target IPv6 address.
[in]	TargetLinkAddress	Pointer to link-layer address of the target. Ignored if NULL.
[in]	Timeout	Time in 100-ns units that this entry will remain in the neighbor cache. It will be deleted after Timeout. A value of zero means that the entry is permanent. A non-zero value means that the entry is dynamic.
[in]	Override	If TRUE, the cached link-layer address of the matching entry will be overridden and updated; if FALSE, and if a corresponding cache entry already existed, EFI_ACCESS_DENIED will be returned.

Return values

EFI_SUCCESS	The neighbor cache entry has been updated or deleted.
EFI_NOT_FOUND	This entry is not in the neighbor cache.

Definition at line 2765 of file Ip6Nd.c.

◆ Ip6DestroyDefaultRouter()

VOID Ip6DestroyDefaultRouter	(	IN IP6_SERVICE *	IpSb,
		IN IP6_DEFAULT_ROUTER *	DefaultRouter
	)

Destroy an IP6 default router entry.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	DefaultRouter	The to be destroyed IP6_DEFAULT_ROUTER.

Definition at line 738 of file Ip6Nd.c.

◆ Ip6DestroyPrefixListEntry()

VOID Ip6DestroyPrefixListEntry	(	IN IP6_SERVICE *	IpSb,
		IN IP6_PREFIX_LIST_ENTRY *	PrefixEntry,
		IN BOOLEAN	OnLinkOrAuto,
		IN BOOLEAN	ImmediateDelete
	)

Destroy a IP6 prefix list entry.

Parameters

[in]	IpSb	The pointer to IP6_SERVICE instance.
[in]	PrefixEntry	The to be destroyed prefix list entry.
[in]	OnLinkOrAuto	If TRUE, the entry is removed from on link prefix list. Otherwise remove from autoconfiguration prefix list.
[in]	ImmediateDelete	If TRUE, remove the entry directly. Otherwise, check the reference count to see whether it should be removed.

Definition at line 281 of file Ip6Nd.c.

◆ Ip6FindDADEntry()

IP6_DAD_ENTRY * Ip6FindDADEntry	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	Target,
		OUT IP6_INTERFACE **Interface	OPTIONAL
	)

Search IP6_DAD_ENTRY from the Duplicate Address Detection List.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	Target	The address information which needs DAD performed .
[out]	Interface	If not NULL, output the IP6 interface that configures the tentative address.

Returns: NULL if failed to find the matching DAD entry. Otherwise, point to the found DAD entry.

Definition at line 1064 of file Ip6Nd.c.

◆ Ip6FindDefaultRouter()

IP6_DEFAULT_ROUTER * Ip6FindDefaultRouter	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	Ip6Address
	)

Search a default router node from an IP6 default router list.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	Ip6Address	The IPv6 address of the to be searched default router node.

Returns: NULL if it failed to find the matching default router node. Otherwise, point to the found default router node.

Definition at line 788 of file Ip6Nd.c.

◆ Ip6FindNeighborEntry()

IP6_NEIGHBOR_ENTRY * Ip6FindNeighborEntry	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	Ip6Address
	)

Search a IP6 neighbor cache entry.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	Ip6Address	Points to the IPv6 address of the neighbor.

Returns: NULL if it failed to find the matching neighbor cache entry. Otherwise, point to the found neighbor cache entry.

Definition at line 566 of file Ip6Nd.c.

◆ Ip6FindPrefixListEntry()

IP6_PREFIX_LIST_ENTRY * Ip6FindPrefixListEntry	(	IN IP6_SERVICE *	IpSb,
		IN BOOLEAN	OnLinkOrAuto,
		IN UINT8	PrefixLength,
		IN EFI_IPv6_ADDRESS *	Prefix
	)

Search the list array to find an IP6 prefix list entry.

Parameters

[in]	IpSb	The pointer to IP6_SERVICE instance.
[in]	OnLinkOrAuto	If TRUE, the search the link prefix list, Otherwise search the autoconfiguration prefix list.
[in]	PrefixLength	The prefix length of the Prefix
[in]	Prefix	The prefix address.

Returns: NULL if cannot find the IP6 prefix list entry. Otherwise, return the pointer to the IP6 prefix list entry.

Definition at line 337 of file Ip6Nd.c.

◆ Ip6FreeNeighborEntry()

EFI_STATUS Ip6FreeNeighborEntry	(	IN IP6_SERVICE *	IpSb,
		IN IP6_NEIGHBOR_ENTRY *	NeighborCache,
		IN BOOLEAN	SendIcmpError,
		IN BOOLEAN	FullFree,
		IN EFI_STATUS	IoStatus,
		IN IP6_FRAME_TO_CANCEL FrameToCancel	OPTIONAL,
		IN VOID *Context	OPTIONAL
	)

Free a IP6 neighbor cache entry and remove all the frames on the address resolution queue that pass the FrameToCancel. That is, either FrameToCancel is NULL, or it returns true for the frame.

Parameters

[in]	IpSb	The pointer to the IP6_SERVICE instance.
[in]	NeighborCache	The to be free neighbor cache entry.
[in]	SendIcmpError	If TRUE, send out ICMP error.
[in]	FullFree	If TRUE, remove the neighbor cache entry. Otherwise remove the pending frames.
[in]	IoStatus	The status returned to the cancelled frames' callback function.
[in]	FrameToCancel	Function to select which frame to cancel. This is an optional parameter that may be NULL.
[in]	Context	Opaque parameter to the FrameToCancel. Ignored if FrameToCancel is NULL.

Return values

EFI_INVALID_PARAMETER	The input parameter is invalid.
EFI_SUCCESS	The operation finished successfully.

Definition at line 613 of file Ip6Nd.c.

◆ Ip6InitDADProcess()

EFI_STATUS Ip6InitDADProcess	(	IN IP6_INTERFACE *	IpIf,
		IN IP6_ADDRESS_INFO *	AddressInfo,
		IN IP6_DAD_CALLBACK Callback	OPTIONAL,
		IN VOID *Context	OPTIONAL
	)

Create a DAD (Duplicate Address Detection) entry and queue it to be performed.

Parameters

[in]	IpIf	Points to the IP6_INTERFACE.
[in]	AddressInfo	The address information which needs DAD performed.
[in]	Callback	The callback routine that will be called after DAD is performed. This is an optional parameter that may be NULL.
[in]	Context	The opaque parameter for a DAD callback routine. This is an optional parameter that may be NULL.

Return values

EFI_SUCCESS	The DAD entry was created and queued.
EFI_OUT_OF_RESOURCES	Failed to allocate the memory to complete the operation.

Definition at line 974 of file Ip6Nd.c.

◆ Ip6NdFasterTimerTicking()

VOID EFIAPI Ip6NdFasterTimerTicking	(	IN EFI_EVENT	Event,
		IN VOID *	Context
	)

The heartbeat timer of ND module in IP6_TIMER_INTERVAL_IN_MS milliseconds. This time routine handles DAD module and neighbor state transition. It is also responsible for sending out router solicitations.

Parameters

[in]	Event	The IP6 service instance's heartbeat timer.
[in]	Context	The IP6 service instance.

Definition at line 2797 of file Ip6Nd.c.

◆ Ip6NdTimerTicking()

VOID Ip6NdTimerTicking ( IN IP6_SERVICE * IpSb )

The heartbeat timer of ND module in 1 second. This time routine handles following things: 1) maintain default router list; 2) maintain prefix options; 3) maintain route caches.

Parameters

[in] IpSb The IP6 service binding instance.

Definition at line 3124 of file Ip6Nd.c.

◆ Ip6OnArpResolved()

VOID Ip6OnArpResolved ( IN VOID * Context )

Callback function when address resolution is finished. It will cancel all the queued frames if the address resolution failed, or transmit them if the request succeeded.

Parameters

[in] Context The context of the callback, a pointer to IP6_NEIGHBOR_ENTRY.

Definition at line 416 of file Ip6Nd.c.

◆ Ip6OnDADFinished()

VOID Ip6OnDADFinished	(	IN BOOLEAN	IsDadPassed,
		IN IP6_INTERFACE *	IpIf,
		IN IP6_DAD_ENTRY *	DadEntry
	)

The function to be called after DAD (Duplicate Address Detection) is performed.

Parameters

[in]	IsDadPassed	If TRUE, the DAD operation succeed. Otherwise, the DAD operation failed.
[in]	IpIf	Points to the IP6_INTERFACE.
[in]	DadEntry	The DAD entry which already performed DAD.

Definition at line 818 of file Ip6Nd.c.

◆ Ip6ProcessNeighborAdvertise()

EFI_STATUS Ip6ProcessNeighborAdvertise	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IP6_HEADER *	Head,
		IN NET_BUF *	Packet
	)

Process the Neighbor Advertisement message.

Parameters

[in]	IpSb	The IP service that received the packet.
[in]	Head	The IP head of the message.
[in]	Packet	The content of the message with IP head removed.

Return values

EFI_SUCCESS	The packet processed successfully.
EFI_INVALID_PARAMETER	The packet is invalid.
EFI_ICMP_ERROR	The packet indicates that DAD is failed.
Others	Failed to process the packet.

Definition at line 1708 of file Ip6Nd.c.

◆ Ip6ProcessNeighborSolicit()

EFI_STATUS Ip6ProcessNeighborSolicit	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IP6_HEADER *	Head,
		IN NET_BUF *	Packet
	)

Process the Neighbor Solicitation message. The message may be sent for Duplicate Address Detection or Address Resolution.

Parameters

[in]	IpSb	The IP service that received the packet.
[in]	Head	The IP head of the message.
[in]	Packet	The content of the message with IP head removed.

Return values

EFI_SUCCESS	The packet processed successfully.
EFI_INVALID_PARAMETER	The packet is invalid.
EFI_ICMP_ERROR	The packet indicates that DAD is failed.
Others	Failed to process the packet.

Definition at line 1476 of file Ip6Nd.c.

◆ Ip6ProcessRedirect()

EFI_STATUS Ip6ProcessRedirect	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IP6_HEADER *	Head,
		IN NET_BUF *	Packet
	)

Process the ICMPv6 redirect message. Find the instance, then update its route cache.

Parameters

[in]	IpSb	The IP6 service binding instance that received the packet.
[in]	Head	The IP head of the received ICMPv6 packet.
[in]	Packet	The content of the ICMPv6 redirect packet with the IP head removed.

Return values

EFI_INVALID_PARAMETER	The parameter is invalid.
EFI_OUT_OF_RESOURCES	Insufficient resources to complete the operation.
EFI_SUCCESS	Successfully updated the route caches.

Definition at line 2416 of file Ip6Nd.c.

◆ Ip6ProcessRouterAdvertise()

EFI_STATUS Ip6ProcessRouterAdvertise	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IP6_HEADER *	Head,
		IN NET_BUF *	Packet
	)

Process the Router Advertisement message according to RFC4861.

Parameters

[in]	IpSb	The IP service that received the packet.
[in]	Head	The IP head of the message.
[in]	Packet	The content of the message with the IP head removed.

Return values

EFI_SUCCESS	The packet processed successfully.
EFI_INVALID_PARAMETER	The packet is invalid.
EFI_OUT_OF_RESOURCES	Insufficient resources to complete the operation.
Others	Failed to process the packet.

Definition at line 1943 of file Ip6Nd.c.

◆ Ip6SendNeighborAdvertise()

EFI_STATUS Ip6SendNeighborAdvertise	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	SourceAddress,
		IN EFI_IPv6_ADDRESS *	DestinationAddress,
		IN EFI_IPv6_ADDRESS *	TargetIp6Address,
		IN EFI_MAC_ADDRESS *	TargetLinkAddress,
		IN BOOLEAN	IsRouter,
		IN BOOLEAN	Override,
		IN BOOLEAN	Solicited
	)

Generate a Neighbor Advertisement message and send it out to Destination Address.

Parameters

[in]	IpSb	The IP service to send the packet.
[in]	SourceAddress	The source address of the message.
[in]	DestinationAddress	The destination address of the message.
[in]	TargetIp6Address	The target address field in the Neighbor Solicitation message that prompted this advertisement.
[in]	TargetLinkAddress	The MAC address for the target, i.e. the sender of the advertisement.
[in]	IsRouter	If TRUE, indicates the sender is a router.
[in]	Override	If TRUE, indicates the advertisement should override an existing cache entry and update the MAC address.
[in]	Solicited	If TRUE, indicates the advertisement was sent in response to a Neighbor Solicitation from the Destination address.

Return values

EFI_OUT_OF_RESOURCES	Insufficient resources to complete the operation.
EFI_SUCCESS	The Neighbor Advertise message was successfully sent.

Definition at line 1225 of file Ip6Nd.c.

◆ Ip6SendNeighborSolicit()

EFI_STATUS Ip6SendNeighborSolicit	(	IN IP6_SERVICE *	IpSb,
		IN EFI_IPv6_ADDRESS *	SourceAddress,
		IN EFI_IPv6_ADDRESS *	DestinationAddress,
		IN EFI_IPv6_ADDRESS *	TargetIp6Address,
		IN EFI_MAC_ADDRESS *SourceLinkAddress	OPTIONAL
	)

Generate the Neighbor Solicitation message and send it to the Destination Address.

Parameters

[in]	IpSb	The IP service to send the packet
[in]	SourceAddress	The source address of the message.
[in]	DestinationAddress	The destination address of the message.
[in]	TargetIp6Address	The IP address of the target of the solicitation. It must not be a multicast address.
[in]	SourceLinkAddress	The MAC address for the sender. If not NULL, a source link-layer address option will be appended to the message.

Return values

EFI_INVALID_PARAMETER	Any input parameter is invalid.
EFI_OUT_OF_RESOURCES	Insufficient resources to complete the operation.
EFI_SUCCESS	The Neighbor Advertise message was successfully sent.

Definition at line 1340 of file Ip6Nd.c.

◆ Ip6SendRouterSolicit()

EFI_STATUS Ip6SendRouterSolicit	(	IN IP6_SERVICE *	IpSb,
		IN IP6_INTERFACE *Interface	OPTIONAL,
		IN EFI_IPv6_ADDRESS *SourceAddress	OPTIONAL,
		IN EFI_IPv6_ADDRESS *DestinationAddress	OPTIONAL,
		IN EFI_MAC_ADDRESS *SourceLinkAddress	OPTIONAL
	)

Generate router solicit message and send it out to Destination Address or All Router Link Local scope multicast address.

Parameters

[in]	IpSb	The IP service to send the packet.
[in]	Interface	If not NULL, points to the IP6 interface to send the packet.
[in]	SourceAddress	If not NULL, the source address of the message.
[in]	DestinationAddress	If not NULL, the destination address of the message.
[in]	SourceLinkAddress	If not NULL, the MAC address of the source. A source link-layer address option will be appended to the message.

Return values

EFI_OUT_OF_RESOURCES	Insufficient resources to complete the operation.
EFI_SUCCESS	The router solicit message was successfully sent.

Definition at line 1114 of file Ip6Nd.c.

◆ Ip6UpdateReachableTime()

EFI_STATUS Ip6UpdateReachableTime ( IN OUT IP6_SERVICE * IpSb )

Update the ReachableTime in IP6 service binding instance data, in milliseconds.

Parameters

[in,out] IpSb Points to the IP6_SERVICE.

Return values

EFI_SUCCESS	ReachableTime Updated
others	Failed to update ReachableTime

Definition at line 23 of file Ip6Nd.c.

Variable Documentation

◆ mZeroMacAddress

EFI_MAC_ADDRESS mZeroMacAddress

Definition at line 12 of file Ip6Nd.c.

Functions

Variables

Detailed Description

Function Documentation

◆ Ip6AddNeighbor()

◆ Ip6BuildEfiNeighborCache()

◆ Ip6BuildPrefixTable()

◆ Ip6CleanDefaultRouterList()

◆ Ip6CleanPrefixListTable()

◆ Ip6CreateDefaultRouter()

◆ Ip6CreateNeighborEntry()

◆ Ip6CreatePrefixListEntry()

◆ Ip6DelNeighbor()

◆ Ip6DestroyDefaultRouter()

◆ Ip6DestroyPrefixListEntry()

◆ Ip6FindDADEntry()

◆ Ip6FindDefaultRouter()

◆ Ip6FindNeighborEntry()

◆ Ip6FindPrefixListEntry()

◆ Ip6FreeNeighborEntry()

◆ Ip6InitDADProcess()

◆ Ip6NdFasterTimerTicking()

◆ Ip6NdTimerTicking()

◆ Ip6OnArpResolved()

◆ Ip6OnDADFinished()

◆ Ip6ProcessNeighborAdvertise()

◆ Ip6ProcessNeighborSolicit()

◆ Ip6ProcessRedirect()

◆ Ip6ProcessRouterAdvertise()

◆ Ip6SendNeighborAdvertise()

◆ Ip6SendNeighborSolicit()

◆ Ip6SendRouterSolicit()

◆ Ip6UpdateReachableTime()

Variable Documentation

◆ mZeroMacAddress