Data Structures
struct	EFI_IP6_ADDRESS_PAIR

struct	EFI_IP6_VARIABLE_DATA

struct	EFI_IP6_CONFIG_DATA

struct	EFI_IP6_ADDRESS_INFO

struct	EFI_IP6_ROUTE_TABLE

struct	EFI_IP6_NEIGHBOR_CACHE

struct	EFI_IP6_ICMP_TYPE

struct	EFI_IP6_MODE_DATA

struct	_EFI_IP6_HEADER

struct	_EFI_IP6_FRAGMENT_DATA

struct	_EFI_IP6_RECEIVE_DATA

struct	_EFI_IP6_OVERRIDE_DATA

struct	_EFI_IP6_TRANSMIT_DATA

struct	EFI_IP6_COMPLETION_TOKEN

struct	_EFI_IP6_PROTOCOL

Macros
#define	EFI_IP6_SERVICE_BINDING_PROTOCOL_GUID

#define	EFI_IP6_PROTOCOL_GUID


#define	ICMP_V6_DEST_UNREACHABLE 0x1

#define	ICMP_V6_PACKET_TOO_BIG 0x2

#define	ICMP_V6_TIME_EXCEEDED 0x3

#define	ICMP_V6_PARAMETER_PROBLEM 0x4


#define	ICMP_V6_ECHO_REQUEST 0x80

#define	ICMP_V6_ECHO_REPLY 0x81

#define	ICMP_V6_LISTENER_QUERY 0x82

#define	ICMP_V6_LISTENER_REPORT 0x83

#define	ICMP_V6_LISTENER_DONE 0x84

#define	ICMP_V6_ROUTER_SOLICIT 0x85

#define	ICMP_V6_ROUTER_ADVERTISE 0x86

#define	ICMP_V6_NEIGHBOR_SOLICIT 0x87

#define	ICMP_V6_NEIGHBOR_ADVERTISE 0x88

#define	ICMP_V6_REDIRECT 0x89

#define	ICMP_V6_LISTENER_REPORT_2 0x8F


#define	ICMP_V6_NO_ROUTE_TO_DEST 0x0

#define	ICMP_V6_COMM_PROHIBITED 0x1

#define	ICMP_V6_BEYOND_SCOPE 0x2

#define	ICMP_V6_ADDR_UNREACHABLE 0x3

#define	ICMP_V6_PORT_UNREACHABLE 0x4

#define	ICMP_V6_SOURCE_ADDR_FAILED 0x5

#define	ICMP_V6_ROUTE_REJECTED 0x6


#define	ICMP_V6_TIMEOUT_HOP_LIMIT 0x0

#define	ICMP_V6_TIMEOUT_REASSEMBLE 0x1


#define	ICMP_V6_ERRONEOUS_HEADER 0x0

#define	ICMP_V6_UNRECOGNIZE_NEXT_HDR 0x1

#define	ICMP_V6_UNRECOGNIZE_OPTION 0x2

Typedefs
typedef struct _EFI_IP6_PROTOCOL	EFI_IP6_PROTOCOL

typedef struct _EFI_IP6_HEADER	EFI_IP6_HEADER

typedef struct _EFI_IP6_FRAGMENT_DATA	EFI_IP6_FRAGMENT_DATA

typedef struct _EFI_IP6_RECEIVE_DATA	EFI_IP6_RECEIVE_DATA

typedef struct _EFI_IP6_OVERRIDE_DATA	EFI_IP6_OVERRIDE_DATA

typedef struct _EFI_IP6_TRANSMIT_DATA	EFI_IP6_TRANSMIT_DATA

typedef EFI_STATUS(EFIAPI *	EFI_IP6_GET_MODE_DATA )(IN EFI_IP6_PROTOCOL This, OUT EFI_IP6_MODE_DATA Ip6ModeData, OUT EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData, OUT EFI_SIMPLE_NETWORK_MODE SnpModeData)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_CONFIGURE )(IN EFI_IP6_PROTOCOL This, IN EFI_IP6_CONFIG_DATA Ip6ConfigData)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_GROUPS )(IN EFI_IP6_PROTOCOL This, IN BOOLEAN JoinFlag, IN EFI_IPv6_ADDRESS GroupAddress)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_ROUTES )(IN EFI_IP6_PROTOCOL This, IN BOOLEAN DeleteRoute, IN EFI_IPv6_ADDRESS Destination, IN UINT8 PrefixLength, IN EFI_IPv6_ADDRESS *GatewayAddress)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_NEIGHBORS )(IN EFI_IP6_PROTOCOL This, IN BOOLEAN DeleteFlag, IN EFI_IPv6_ADDRESS TargetIp6Address, IN EFI_MAC_ADDRESS *TargetLinkAddress, IN UINT32 Timeout, IN BOOLEAN Override)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_TRANSMIT )(IN EFI_IP6_PROTOCOL This, IN EFI_IP6_COMPLETION_TOKEN Token)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_RECEIVE )(IN EFI_IP6_PROTOCOL This, IN EFI_IP6_COMPLETION_TOKEN Token)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_CANCEL )(IN EFI_IP6_PROTOCOL This, IN EFI_IP6_COMPLETION_TOKEN Token)

typedef EFI_STATUS(EFIAPI *	EFI_IP6_POLL )(IN EFI_IP6_PROTOCOL *This)

Enumerations
enum	EFI_IP6_NEIGHBOR_STATE { EfiNeighborInComplete, EfiNeighborReachable, EfiNeighborStale, EfiNeighborDelay, EfiNeighborProbe }

Variables
EFI_GUID	gEfiIp6ServiceBindingProtocolGuid

EFI_GUID	gEfiIp6ProtocolGuid

Detailed Description

This file defines the EFI IPv6 (Internet Protocol version 6) Protocol interface. It is split into the following three main sections:

EFI IPv6 Service Binding Protocol
EFI IPv6 Variable (deprecated in UEFI 2.4B)
EFI IPv6 Protocol The EFI IPv6 Protocol provides basic network IPv6 packet I/O services, which includes support for Neighbor Discovery Protocol (ND), Multicast Listener Discovery Protocol (MLD), and a subset of the Internet Control Message Protocol (ICMPv6).

Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Revision Reference:: This Protocol is introduced in UEFI Specification 2.2

Macro Definition Documentation

#define EFI_IP6_PROTOCOL_GUID

Value:

{ \
    0x2c8759d5, 0x5c2d, 0x66ef, {0x92, 0x5f, 0xb6, 0x6c, 0x10, 0x19, 0x57, 0xe2 } \
  }

#define EFI_IP6_SERVICE_BINDING_PROTOCOL_GUID

Value:

{ \
    0xec835dd3, 0xfe0f, 0x617b, {0xa6, 0x21, 0xb3, 0x50, 0xc3, 0xe1, 0x33, 0x88 } \
  }

#define ICMP_V6_ADDR_UNREACHABLE 0x3

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_BEYOND_SCOPE 0x2

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_COMM_PROHIBITED 0x1

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_DEST_UNREACHABLE 0x1

ICMPv6 type definitions for error messages

#define ICMP_V6_ECHO_REPLY 0x81

ICMPv6 type definition for informational messages

#define ICMP_V6_ECHO_REQUEST 0x80

ICMPv6 type definition for informational messages

#define ICMP_V6_ERRONEOUS_HEADER 0x0

ICMPv6 code definitions for ICMP_V6_PARAMETER_PROBLEM

#define ICMP_V6_LISTENER_DONE 0x84

ICMPv6 type definition for informational messages

#define ICMP_V6_LISTENER_QUERY 0x82

ICMPv6 type definition for informational messages

#define ICMP_V6_LISTENER_REPORT 0x83

ICMPv6 type definition for informational messages

#define ICMP_V6_LISTENER_REPORT_2 0x8F

ICMPv6 type definition for informational messages

#define ICMP_V6_NEIGHBOR_ADVERTISE 0x88

ICMPv6 type definition for informational messages

#define ICMP_V6_NEIGHBOR_SOLICIT 0x87

ICMPv6 type definition for informational messages

#define ICMP_V6_NO_ROUTE_TO_DEST 0x0

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_PACKET_TOO_BIG 0x2

ICMPv6 type definitions for error messages

#define ICMP_V6_PARAMETER_PROBLEM 0x4

ICMPv6 type definitions for error messages

#define ICMP_V6_PORT_UNREACHABLE 0x4

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_REDIRECT 0x89

ICMPv6 type definition for informational messages

#define ICMP_V6_ROUTE_REJECTED 0x6

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_ROUTER_ADVERTISE 0x86

ICMPv6 type definition for informational messages

#define ICMP_V6_ROUTER_SOLICIT 0x85

ICMPv6 type definition for informational messages

#define ICMP_V6_SOURCE_ADDR_FAILED 0x5

ICMPv6 code definitions for ICMP_V6_DEST_UNREACHABLE

#define ICMP_V6_TIME_EXCEEDED 0x3

ICMPv6 type definitions for error messages

#define ICMP_V6_TIMEOUT_HOP_LIMIT 0x0

ICMPv6 code definitions for ICMP_V6_TIME_EXCEEDED

#define ICMP_V6_TIMEOUT_REASSEMBLE 0x1

ICMPv6 code definitions for ICMP_V6_TIME_EXCEEDED

#define ICMP_V6_UNRECOGNIZE_NEXT_HDR 0x1

ICMPv6 code definitions for ICMP_V6_PARAMETER_PROBLEM

#define ICMP_V6_UNRECOGNIZE_OPTION 0x2

ICMPv6 code definitions for ICMP_V6_PARAMETER_PROBLEM

Typedef Documentation

typedef EFI_STATUS(EFIAPI * EFI_IP6_CANCEL)(IN EFI_IP6_PROTOCOL *This, IN EFI_IP6_COMPLETION_TOKEN *Token)

Abort an asynchronous transmit or receive request.

The Cancel() function is used to abort a pending transmit or receive request. If the token is in the transmit or receive request queues, after calling this function, Token->Status will be set to EFI_ABORTED and then Token->Event will be signaled. If the token is not in one of the queues, which usually means the asynchronous operation has completed, this function will not signal the token and EFI_NOT_FOUND is returned.

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	Token	Pointer to a token that has been issued by EFI_IP6_PROTOCOL.Transmit() or EFI_IP6_PROTOCOL.Receive(). If NULL, all pending tokens are aborted. Type EFI_IP6_COMPLETION_TOKEN is defined in EFI_IP6_PROTOCOL.Transmit().

Return values

EFI_SUCCESS	The asynchronous I/O request was aborted and Token->Event was signaled. When Token is NULL, all pending requests were aborted and their events were signaled.
EFI_INVALID_PARAMETER	This is NULL.
EFI_NOT_STARTED	This instance has not been started.
EFI_NOT_FOUND	When Token is not NULL, the asynchronous I/O request was not found in the transmit or receive queue. It has either completed or was not issued by Transmit() and Receive().
EFI_DEVICE_ERROR	An unexpected system or network error occurred.

typedef EFI_STATUS(EFIAPI * EFI_IP6_CONFIGURE)(IN EFI_IP6_PROTOCOL *This, IN EFI_IP6_CONFIG_DATA *Ip6ConfigData)

Assigns an IPv6 address and subnet mask to this EFI IPv6 Protocol driver instance.

The Configure() function is used to set, change, or reset the operational parameters and filter settings for this EFI IPv6 Protocol instance. Until these parameters have been set, no network traffic can be sent or received by this instance. Once the parameters have been reset (by calling this function with Ip6ConfigData set to NULL), no more traffic can be sent or received until these parameters have been set again. Each EFI IPv6 Protocol instance can be started and stopped independently of each other by enabling or disabling their receive filter settings with the Configure() function.

If Ip6ConfigData.StationAddress is a valid non-zero IPv6 unicast address, it is required to be one of the currently configured IPv6 addresses list in the EFI IPv6 drivers, or else EFI_INVALID_PARAMETER will be returned. If Ip6ConfigData.StationAddress is unspecified, the IPv6 driver will bind a source address according to the source address selection algorithm. Clients could frequently call GetModeData() to check get currently configured IPv6 address list in the EFI IPv6 driver. If both Ip6ConfigData.StationAddress and Ip6ConfigData.Destination are unspecified, when transmitting the packet afterwards, the source address filled in each outgoing IPv6 packet is decided based on the destination of this packet. .

If operational parameters are reset or changed, any pending transmit and receive requests will be cancelled. Their completion token status will be set to EFI_ABORTED and their events will be signaled.

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	Ip6ConfigData	Pointer to the EFI IPv6 Protocol configuration data structure.

Return values

EFI_SUCCESS	The driver instance was successfully opened.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. Ip6ConfigData.StationAddress is neither zero nor a unicast IPv6 address. Ip6ConfigData.StationAddress is neither zero nor one of the configured IP addresses in the EFI IPv6 driver. Ip6ConfigData.DefaultProtocol is illegal.
EFI_OUT_OF_RESOURCES	The EFI IPv6 Protocol driver instance data could not be allocated.
EFI_NO_MAPPING	The IPv6 driver was responsible for choosing a source address for this instance, but no source address was available for use.
EFI_ALREADY_STARTED	The interface is already open and must be stopped before the IPv6 address or prefix length can be changed.
EFI_DEVICE_ERROR	An unexpected system or network error occurred. The EFI IPv6 Protocol driver instance is not opened.
EFI_UNSUPPORTED	Default protocol specified through Ip6ConfigData.DefaulProtocol isn't supported.

typedef struct _EFI_IP6_FRAGMENT_DATA EFI_IP6_FRAGMENT_DATA

EFI_IP6_FRAGMENT_DATA describes the location and length of the IPv6 packet fragment to transmit or that has been received.

typedef EFI_STATUS(EFIAPI * EFI_IP6_GET_MODE_DATA)(IN EFI_IP6_PROTOCOL *This, OUT EFI_IP6_MODE_DATA *Ip6ModeData, OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData, OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData)

Gets the current operational settings for this instance of the EFI IPv6 Protocol driver.

The GetModeData() function returns the current operational mode data for this driver instance. The data fields in EFI_IP6_MODE_DATA are read only. This function is used optionally to retrieve the operational mode data of underlying networks or drivers..

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[out]	Ip6ModeData	Pointer to the EFI IPv6 Protocol mode data structure.
[out]	MnpConfigData	Pointer to the managed network configuration data structure.
[out]	SnpModeData	Pointer to the simple network mode data structure.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	This is NULL.
EFI_OUT_OF_RESOURCES	The required mode data could not be allocated.

typedef EFI_STATUS(EFIAPI * EFI_IP6_GROUPS)(IN EFI_IP6_PROTOCOL *This, IN BOOLEAN JoinFlag, IN EFI_IPv6_ADDRESS *GroupAddress)

Joins and leaves multicast groups.

The Groups() function is used to join and leave multicast group sessions. Joining a group will enable reception of matching multicast packets. Leaving a group will disable reception of matching multicast packets. Source-Specific Multicast isn't required to be supported.

If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left.

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	JoinFlag	Set to TRUE to join the multicast group session and FALSE to leave.
[in]	GroupAddress	Pointer to the IPv6 multicast address.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	One or more of the following is TRUE: This is NULL. JoinFlag is TRUE and GroupAddress is NULL. GroupAddress is not NULL and GroupAddress is not a multicast IPv6 address. GroupAddress is not NULL and GroupAddress is in the range of SSM destination address.
EFI_NOT_STARTED	This instance has not been started.
EFI_OUT_OF_RESOURCES	System resources could not be allocated.
EFI_UNSUPPORTED	This EFI IPv6 Protocol implementation does not support multicast groups.
EFI_ALREADY_STARTED	The group address is already in the group table (when JoinFlag is TRUE).
EFI_NOT_FOUND	The group address is not in the group table (when JoinFlag is FALSE).
EFI_DEVICE_ERROR	An unexpected system or network error occurred.

typedef struct _EFI_IP6_HEADER EFI_IP6_HEADER

EFI_IP6_HEADER The fields in the IPv6 header structure are defined in the Internet Protocol version6 specification.

typedef EFI_STATUS(EFIAPI * EFI_IP6_NEIGHBORS)(IN EFI_IP6_PROTOCOL *This, IN BOOLEAN DeleteFlag, IN EFI_IPv6_ADDRESS *TargetIp6Address, IN EFI_MAC_ADDRESS *TargetLinkAddress, IN UINT32 Timeout, IN BOOLEAN Override)

Add or delete Neighbor cache entries.

The Neighbors() function is used to add, update, or delete an entry from neighbor cache. IPv6 neighbor cache entries are typically inserted and updated by the network protocol driver as network traffic is processed. Most neighbor cache entries will time out and be deleted if the network traffic stops. Neighbor cache entries that were inserted by Neighbors() may be static (will not timeout) or dynamic (will time out).

The implementation should follow the neighbor cache timeout mechanism which is defined in RFC4861. The default neighbor cache timeout value should be tuned for the expected network environment

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	DeleteFlag	Set to TRUE to delete the specified cache entry, set to FALSE to add (or update, if it already exists and Override is TRUE) the specified cache entry. TargetIp6Address is used as the key to find the requested cache entry.
[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, EFI_ACCESS_DENIED will be returned if a corresponding cache entry already existed.

Return values

EFI_SUCCESS	The data has been queued for transmission.
EFI_NOT_STARTED	This instance has not been started.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. TargetIpAddress is NULL. TargetLinkAddress is invalid when not NULL. TargetIpAddress is not a valid unicast IPv6 address. *TargetIpAddress is one of the local configured IPv6 addresses.
EFI_OUT_OF_RESOURCES	Could not add the entry to the neighbor cache.
EFI_NOT_FOUND	This entry is not in the neighbor cache (when DeleteFlag is TRUE or when DeleteFlag is FALSE while 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).

typedef struct _EFI_IP6_OVERRIDE_DATA EFI_IP6_OVERRIDE_DATA

EFI_IP6_OVERRIDE_DATA The information and flags in the override data structure will override default parameters or settings for one Transmit() function call.

typedef EFI_STATUS(EFIAPI * EFI_IP6_POLL)(IN EFI_IP6_PROTOCOL *This)

Polls for incoming data packets and processes outgoing data packets.

The Poll() function polls for incoming data packets and processes outgoing data packets. Network drivers and applications can call the EFI_IP6_PROTOCOL.Poll() function to increase the rate that data packets are moved between the communications device and the transmit and receive queues.

In some systems the periodic timer event may not poll the underlying communications device fast enough to transmit and/or receive all data packets without missing incoming packets or dropping outgoing packets. Drivers and applications that are experiencing packet loss should try calling the EFI_IP6_PROTOCOL.Poll() function more often.

Parameters

[in] This Pointer to the EFI_IP6_PROTOCOL instance.

Return values

EFI_SUCCESS	Incoming or outgoing data was processed.
EFI_NOT_STARTED	This EFI IPv6 Protocol instance has not been started.
EFI_INVALID_PARAMETER	This is NULL.
EFI_DEVICE_ERROR	An unexpected system or network error occurred.
EFI_NOT_READY	No incoming or outgoing data is processed.
EFI_TIMEOUT	Data was dropped out of the transmit and/or receive queue. Consider increasing the polling rate.

typedef struct _EFI_IP6_PROTOCOL EFI_IP6_PROTOCOL

typedef EFI_STATUS(EFIAPI * EFI_IP6_RECEIVE)(IN EFI_IP6_PROTOCOL *This, IN EFI_IP6_COMPLETION_TOKEN *Token)

Places a receiving request into the receiving queue.

The Receive() function places a completion token into the receive packet queue. This function is always asynchronous.

The Token.Event field in the completion token must be filled in by the caller and cannot be NULL. When the receive operation completes, the EFI IPv6 Protocol driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event is signaled.

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	Token	Pointer to a token that is associated with the receive data descriptor.

Return values

EFI_SUCCESS	The receive completion token was cached.
EFI_NOT_STARTED	This EFI IPv6 Protocol instance has not been started.
EFI_NO_MAPPING	When IP6 driver responsible for binding source address to this instance, while no source address is available for use.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. Token is NULL. Token.Event is NULL.
EFI_OUT_OF_RESOURCES	The receive completion token could not be queued due to a lack of system resources (usually memory).
EFI_DEVICE_ERROR	An unexpected system or network error occurred. The EFI IPv6 Protocol instance has been reset to startup defaults.
EFI_ACCESS_DENIED	The receive completion token with the same Token.Event was already in the receive queue.
EFI_NOT_READY	The receive request could not be queued because the receive queue is full.

typedef struct _EFI_IP6_RECEIVE_DATA EFI_IP6_RECEIVE_DATA

EFI_IP6_RECEIVE_DATA

typedef EFI_STATUS(EFIAPI * EFI_IP6_ROUTES)(IN EFI_IP6_PROTOCOL *This, IN BOOLEAN DeleteRoute, IN EFI_IPv6_ADDRESS *Destination, IN UINT8 PrefixLength, IN EFI_IPv6_ADDRESS *GatewayAddress)

Adds and deletes routing table entries.

The Routes() function adds a route to or deletes a route from the routing table.

Routes are determined by comparing the leftmost PrefixLength bits of Destination with the destination IPv6 address arithmetically. The gateway address must be on the same subnet as the configured station address.

The default route is added with Destination and PrefixLegth both set to all zeros. The default route matches all destination IPv6 addresses that do not match any other routes.

All EFI IPv6 Protocol instances share a routing table.

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	DeleteRoute	Set to TRUE to delete this route from the routing table. Set to FALSE to add this route to the routing table. Destination, PrefixLength and Gateway are used as the key to each route entry.
[in]	Destination	The address prefix of the subnet that needs to be routed.
[in]	PrefixLength	The prefix length of Destination. Ignored if Destination is NULL.
[in]	GatewayAddress	The unicast gateway IPv6 address for this route.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_NOT_STARTED	The driver instance has not been started.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. When DeleteRoute is TRUE, both Destination and GatewayAddress are NULL. When DeleteRoute is FALSE, either Destination or GatewayAddress is NULL. GatewayAddress is not a valid unicast IPv6 address. GatewayAddress is one of the local configured IPv6 addresses.
EFI_OUT_OF_RESOURCES	Could not add the entry to the routing table.
EFI_NOT_FOUND	This route is not in the routing table (when DeleteRoute is TRUE).
EFI_ACCESS_DENIED	The route is already defined in the routing table (when DeleteRoute is FALSE).

typedef EFI_STATUS(EFIAPI * EFI_IP6_TRANSMIT)(IN EFI_IP6_PROTOCOL *This, IN EFI_IP6_COMPLETION_TOKEN *Token)

Places outgoing data packets into the transmit queue.

The Transmit() function places a sending request in the transmit queue of this EFI IPv6 Protocol instance. Whenever the packet in the token is sent out or some errors occur, the event in the token will be signaled and the status is updated.

Parameters

[in]	This	Pointer to the EFI_IP6_PROTOCOL instance.
[in]	Token	Pointer to the transmit token.

Return values

EFI_SUCCESS	The data has been queued for transmission.
EFI_NOT_STARTED	This instance has not been started.
EFI_NO_MAPPING	The IPv6 driver was responsible for choosing a source address for this transmission, but no source address was available for use.
EFI_INVALID_PARAMETER	One or more of the following is TRUE: This is NULL. Token is NULL. Token.Event is NULL. Token.Packet.TxData is NULL. Token.Packet.ExtHdrsLength is not zero and Token.Packet.ExtHdrs is NULL. Token.Packet.FragmentCount is zero. 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. Token.Packet.TxData.DataLength is zero or not equal to the sum of fragment lengths. Token.Packet.TxData.DestinationAddress is non-zero when DestinationAddress is configured as non-zero when doing Configure() for this EFI IPv6 protocol instance. Token.Packet.TxData.DestinationAddress is unspecified when DestinationAddress is unspecified when doing Configure() for this EFI IPv6 protocol instance.
EFI_ACCESS_DENIED	The transmit completion token with the same Token.Event was already in the transmit queue.
EFI_NOT_READY	The completion token could not be queued because the transmit queue is full.
EFI_NOT_FOUND	Not route is found to destination address.
EFI_OUT_OF_RESOURCES	Could not queue the transmit data.
EFI_BUFFER_TOO_SMALL	Token.Packet.TxData.TotalDataLength is too short to transmit.
EFI_BAD_BUFFER_SIZE	If Token.Packet.TxData.DataLength is beyond the maximum that which can be described through the Fragment Offset field in Fragment header when performing fragmentation.
EFI_DEVICE_ERROR	An unexpected system or network error occurred.

typedef struct _EFI_IP6_TRANSMIT_DATA EFI_IP6_TRANSMIT_DATA

EFI_IP6_TRANSMIT_DATA

Enumeration Type Documentation

enum EFI_IP6_NEIGHBOR_STATE

EFI_IP6_NEIGHBOR_STATE

Enumerator
EfiNeighborInComplete	Address resolution is being performed on this entry. Specially, Neighbor Solicitation has been sent to the solicited-node multicast address of the target, but corresponding Neighbor Advertisement has not been received.
EfiNeighborReachable	Positive confirmation was received that the forward path to the neighbor was functioning properly.
EfiNeighborStale	Reachable Time has elapsed since the last positive confirmation was received. In this state, the forward path to the neighbor was functioning properly.
EfiNeighborDelay	This state is an optimization that gives upper-layer protocols additional time to provide reachability confirmation.
EfiNeighborProbe	A reachability confirmation is actively sought by retransmitting Neighbor Solicitations every RetransTimer milliseconds until a reachability confirmation is received.

Variable Documentation

EFI_GUID gEfiIp6ProtocolGuid

EFI_GUID gEfiIp6ServiceBindingProtocolGuid

Data Structures

Macros

Typedefs

Enumerations

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Variable Documentation