Dns6.h File Reference

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Data Structures
struct	EFI_DNS6_CONFIG_DATA
struct	EFI_DNS6_CACHE_ENTRY
struct	EFI_DNS6_MODE_DATA
struct	DNS6_HOST_TO_ADDR_DATA
struct	DNS6_ADDR_TO_HOST_DATA
struct	DNS6_RESOURCE_RECORD
struct	DNS6_GENERAL_LOOKUP_DATA
struct	EFI_DNS6_COMPLETION_TOKEN
struct	_EFI_DNS6_PROTOCOL

Macros
#define	EFI_DNS6_SERVICE_BINDING_PROTOCOL_GUID
#define	EFI_DNS6_PROTOCOL_GUID

Typedefs
typedef struct _EFI_DNS6_PROTOCOL	EFI_DNS6_PROTOCOL
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_GET_MODE_DATA) (IN EFI_DNS6_PROTOCOL *This, OUT EFI_DNS6_MODE_DATA *DnsModeData)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_CONFIGURE) (IN EFI_DNS6_PROTOCOL *This, IN EFI_DNS6_CONFIG_DATA *DnsConfigData)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_HOST_NAME_TO_IP) (IN EFI_DNS6_PROTOCOL *This, IN CHAR16 *HostName, IN EFI_DNS6_COMPLETION_TOKEN *Token)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_IP_TO_HOST_NAME) (IN EFI_DNS6_PROTOCOL *This, IN EFI_IPv6_ADDRESS IpAddress, IN EFI_DNS6_COMPLETION_TOKEN *Token)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_GENERAL_LOOKUP) (IN EFI_DNS6_PROTOCOL *This, IN CHAR8 *QName, IN UINT16 QType, IN UINT16 QClass, IN EFI_DNS6_COMPLETION_TOKEN *Token)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_UPDATE_DNS_CACHE) (IN EFI_DNS6_PROTOCOL *This, IN BOOLEAN DeleteFlag, IN BOOLEAN Override, IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_POLL) (IN EFI_DNS6_PROTOCOL *This)
typedef EFI_STATUS(EFIAPI *	EFI_DNS6_CANCEL) (IN EFI_DNS6_PROTOCOL *This, IN EFI_DNS6_COMPLETION_TOKEN *Token)

Variables
EFI_GUID	gEfiDns6ServiceBindingProtocolGuid
EFI_GUID	gEfiDns6ProtocolGuid

Detailed Description

This file defines the EFI DNSv6 (Domain Name Service version 6) Protocol. It is split into the following two main sections: DNSv6 Service Binding Protocol (DNSv6SB) DNSv6 Protocol (DNSv6)

Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Revision Reference:

This Protocol is introduced in UEFI Specification 2.5

Definition in file Dns6.h.

Macro Definition Documentation

EFI_DNS6_PROTOCOL_GUID

#define EFI_DNS6_PROTOCOL_GUID

Value:

  { \
    0xca37bc1f, 0xa327, 0x4ae9, {0x82, 0x8a, 0x8c, 0x40, 0xd8, 0x50, 0x6a, 0x17 } \
  }

Definition at line 23 of file Dns6.h.

EFI_DNS6_SERVICE_BINDING_PROTOCOL_GUID

#define EFI_DNS6_SERVICE_BINDING_PROTOCOL_GUID

Value:

  { \
    0x7f1647c8, 0xb76e, 0x44b2, {0xa5, 0x65, 0xf7, 0xf, 0xf1, 0x9c, 0xd1, 0x9e } \
  }

Definition at line 18 of file Dns6.h.

Typedef Documentation

EFI_DNS6_CANCEL

typedef EFI_STATUS(EFIAPI * EFI_DNS6_CANCEL) (IN EFI_DNS6_PROTOCOL *This, IN EFI_DNS6_COMPLETION_TOKEN *Token)

Abort an asynchronous DNS operation, including translation between IP and Host, and general look up behavior.

The Cancel() function is used to abort a pending resolution request. 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 that the asynchronous operation has completed, this function will not signal the token and EFI_NOT_FOUND is returned.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[in]	Token	Pointer to a token that has been issued by EFI_DNS6_PROTOCOL.HostNameToIp (), EFI_DNS6_PROTOCOL.IpToHostName() or EFI_DNS6_PROTOCOL.GeneralLookup(). If NULL, all pending tokens are aborted.

Return values

EFI_SUCCESS	Incoming or outgoing data was processed.
EFI_NOT_STARTED	This EFI DNS6 Protocol instance has not been started.
EFI_INVALID_PARAMETER	This is NULL.
EFI_NO_MAPPING	There's no source address is available for use.
EFI_NOT_FOUND	When Token is not NULL, and the asynchronous DNS operation was not found in the transmit queue. It was either completed or was not issued by HostNameToIp(), IpToHostName() or GeneralLookup().

Definition at line 508 of file Dns6.h.

EFI_DNS6_CONFIGURE

typedef EFI_STATUS(EFIAPI * EFI_DNS6_CONFIGURE) (IN EFI_DNS6_PROTOCOL *This, IN EFI_DNS6_CONFIG_DATA *DnsConfigData)

Configure this DNS instance.

The Configure() function is used to set and change the configuration data for this EFI DNSv6 Protocol driver instance. Reset the DNS instance if DnsConfigData is NULL.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[in]	DnsConfigData	Pointer to the configuration data structure. All associated storage to be allocated and released by caller.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	This is NULL. The StationIp address provided in DnsConfigData is not zero and not a valid unicast. DnsServerList is NULL while DnsServerList Count is not ZERO. DnsServerList Count is ZERO while DnsServerList is not NULL.
EFI_OUT_OF_RESOURCES	The DNS instance data or required space could not be allocated.
EFI_DEVICE_ERROR	An unexpected system or network error occurred. The EFI DNSv6 Protocol instance is not configured.
EFI_UNSUPPORTED	The designated protocol is not supported.
EFI_ALREADY_STARTED	Second call to Configure() with DnsConfigData. To reconfigure the instance the caller must call Configure() with NULL first to return driver to unconfigured state.

Definition at line 310 of file Dns6.h.

EFI_DNS6_GENERAL_LOOKUP

typedef EFI_STATUS(EFIAPI * EFI_DNS6_GENERAL_LOOKUP) (IN EFI_DNS6_PROTOCOL *This, IN CHAR8 *QName, IN UINT16 QType, IN UINT16 QClass, IN EFI_DNS6_COMPLETION_TOKEN *Token)

This function provides capability to retrieve arbitrary information from the DNS server.

This GeneralLookup() function retrieves arbitrary information from the DNS. The caller supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All RR content (e.g., TTL) was returned. The caller need parse the returned RR to get required information. The function is optional. Implementation can choose to support it or not.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[in]	QName	Pointer to Query Name.
[in]	QType	Query Type.
[in]	QClass	Query Name.
[in]	Token	Point to the completion token to retrieve arbitrary information.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_UNSUPPORTED	This function is not supported. Or the requested QType is not supported
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. Token is NULL. Token.Event is NULL. QName is NULL.
EFI_NO_MAPPING	There's no source address is available for use.
EFI_NOT_STARTED	This instance has not been started.
EFI_OUT_OF_RESOURCES	Failed to allocate needed resources.

Definition at line 407 of file Dns6.h.

EFI_DNS6_GET_MODE_DATA

typedef EFI_STATUS(EFIAPI * EFI_DNS6_GET_MODE_DATA) (IN EFI_DNS6_PROTOCOL *This, OUT EFI_DNS6_MODE_DATA *DnsModeData)

Retrieve mode data of this DNS instance.

This function is used to retrieve DNS mode data for this DNS instance.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[out]	DnsModeData	Pointer to the caller-allocated storage for the EFI_DNS6_MODE_DATA data.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_NOT_STARTED	When DnsConfigData is queried, no configuration data is available because this instance has not been configured.
EFI_INVALID_PARAMETER	This is NULL or DnsModeData is NULL.
EFI_OUT_OF_RESOURCE	Failed to allocate needed resources.

Definition at line 280 of file Dns6.h.

EFI_DNS6_HOST_NAME_TO_IP

typedef EFI_STATUS(EFIAPI * EFI_DNS6_HOST_NAME_TO_IP) (IN EFI_DNS6_PROTOCOL *This, IN CHAR16 *HostName, IN EFI_DNS6_COMPLETION_TOKEN *Token)

Host name to host address translation.

The HostNameToIp () function is used to translate the host name to host IP address. A type AAAA query is used to get the one or more IPv6 addresses for this host.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[in]	HostName	Host name.
[in]	Token	Point to the completion token to translate host name to host address.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. Token is NULL. Token.Event is NULL. HostName is NULL or buffer contained unsupported characters.
EFI_NO_MAPPING	There's no source address is available for use.
EFI_ALREADY_STARTED	This Token is being used in another DNS session.
EFI_NOT_STARTED	This instance has not been started.
EFI_OUT_OF_RESOURCES	Failed to allocate needed resources.

Definition at line 339 of file Dns6.h.

EFI_DNS6_IP_TO_HOST_NAME

typedef EFI_STATUS(EFIAPI * EFI_DNS6_IP_TO_HOST_NAME) (IN EFI_DNS6_PROTOCOL *This, IN EFI_IPv6_ADDRESS IpAddress, IN EFI_DNS6_COMPLETION_TOKEN *Token)

Host address to host name translation.

The IpToHostName () function is used to translate the host address to host name. A type PTR query is used to get the primary name of the host. Implementation can choose to support this function or not.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[in]	IpAddress	Ip Address.
[in]	Token	Point to the completion token to translate host address to host name.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_UNSUPPORTED	This function is not supported.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. Token is NULL. Token.Event is NULL. IpAddress is not valid IP address.
EFI_NO_MAPPING	There's no source address is available for use.
EFI_NOT_STARTED	This instance has not been started.
EFI_OUT_OF_RESOURCES	Failed to allocate needed resources.

Definition at line 370 of file Dns6.h.

EFI_DNS6_POLL

typedef EFI_STATUS(EFIAPI * EFI_DNS6_POLL) (IN EFI_DNS6_PROTOCOL *This)

Polls for incoming data packets and processes outgoing data packets.

The Poll() function can be used by network drivers and applications 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 in the managed network driver 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 Poll() function more often.

Parameters

[in]

This

Pointer to EFI_DNS6_PROTOCOL instance.

Return values

EFI_SUCCESS	Incoming or outgoing data was processed.
EFI_NOT_STARTED	This EFI DNS Protocol instance has not been started.
EFI_INVALID_PARAMETER	This is NULL.
EFI_NO_MAPPING	There is no source address is available for use.
EFI_DEVICE_ERROR	An unexpected system or network error occurred.
EFI_TIMEOUT	Data was dropped out of the transmit and/or receive queue. Consider increasing the polling rate.

Definition at line 476 of file Dns6.h.

EFI_DNS6_PROTOCOL

typedef struct _EFI_DNS6_PROTOCOL EFI_DNS6_PROTOCOL

Definition at line 28 of file Dns6.h.

EFI_DNS6_UPDATE_DNS_CACHE

typedef EFI_STATUS(EFIAPI * EFI_DNS6_UPDATE_DNS_CACHE) (IN EFI_DNS6_PROTOCOL *This, IN BOOLEAN DeleteFlag, IN BOOLEAN Override, IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry)

This function is to update the DNS Cache.

The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache can be normally dynamically updated after the DNS resolve succeeds. This function provided capability to manually add/delete/modify the DNS cache.

Parameters

[in]	This	Pointer to EFI_DNS6_PROTOCOL instance.
[in]	DeleteFlag	If FALSE, this function is to add one entry to the DNS Cahce. If TRUE, this function will delete matching DNS Cache entry.
[in]	Override	If TRUE, the maching DNS cache entry will be overwritten with the supplied parameter. If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already existed.
[in]	DnsCacheEntry	Pointer to DNS Cache entry.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	One or more of the following conditions is TRUE: This is NULL. DnsCacheEntry.HostName is NULL. DnsCacheEntry.IpAddress is NULL. DnsCacheEntry.Timeout is zero.
EFI_ACCESS_DENIED	The DNS cache entry already exists and Override is not TRUE.
EFI_OUT_OF_RESOURCE	Failed to allocate needed resources.

Definition at line 444 of file Dns6.h.