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97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/*
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* Copyright (C) 2020 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup net_ipv6_ext_opt IPv6 destination and hop-by-hop options
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* @ingroup net_ipv6_ext
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* @brief Definitions for IPv6 destination and hop-by-hop options
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* extension headers
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* @{
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*
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* @file
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* @brief Destination and hop-by-hop options extension header definitions.
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*
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* @author Martine Lenders <m.lenders@fu-berlin.de>
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*/
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#ifndef NET_IPV6_EXT_OPT_H
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#define NET_IPV6_EXT_OPT_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @name Destination and hop-by-hop option types
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* @see [IANA, IPv6 parameters]
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* (https://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xhtml#ipv6-parameters-2)
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* @{
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*/
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#define IPV6_EXT_OPT_PAD1 (0x00U) /**< Pad1 */
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#define IPV6_EXT_OPT_PADN (0x01U) /**< PadN */
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#define IPV6_EXT_OPT_JUMBO (0xC2U) /**< Jumbo payload */
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#define IPV6_EXT_OPT_RPL (0x63U) /**< RPL Option */
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#define IPV6_EXT_OPT_TEL (0x04U) /**< Tunnel Encapsulation Limit */
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#define IPV6_EXT_OPT_RTR_ALERT (0x05U) /**< Router Alert */
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#define IPV6_EXT_OPT_QUICK_START (0x26U) /**< Quick-Start */
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#define IPV6_EXT_OPT_CALIPSO (0x07U) /**< CALIPSO */
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#define IPV6_EXT_OPT_SMF_DPD (0x08U) /**< SMF_DPD */
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#define IPV6_EXT_OPT_HOME_ADDR (0xC9U) /**< Home Address */
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#define IPV6_EXT_OPT_ILNP_NONCE (0x8BU) /**< ILNP Nonce */
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#define IPV6_EXT_OPT_LIO (0x8CU) /**< Line-Identification Option */
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#define IPV6_EXT_OPT_MPL (0x6DU) /**< MPL Option */
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#define IPV6_EXT_OPT_IP_DFF (0xEEU) /**< IP_DFF */
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#define IPV6_EXT_OPT_PDM (0x0FU) /**< Performance and Diagnostic Metrics */
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/** @} */
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/**
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* @name Processing actions
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* @see [RFC 8200, section 4.2](https://tools.ietf.org/html/rfc8200#section-4.2)
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*
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* > The Option Type identifiers are internally encoded such that their
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* > highest-order 2 bits specify the action that must be taken if the
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* > processing IPv6 node does not recognize the Option Type
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* @{
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*/
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/**
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* @brief mask to decode action from type
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*/
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#define IPV6_EXT_OPT_ACTION_MASK (0xc0)
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/**
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* @brief skip over this option and continue processing the header
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*/
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#define IPV6_EXT_OPT_ACTION_SKIP (0x00)
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#define IPV6_EXT_OPT_ACTION_DISC (0x40) /**< discard the packet */
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/**
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* @brief discard the packet
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*
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* > and, regardless of whether or not the packet's Destination Address
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* > was a multicast address, send an ICMP Parameter Problem, Code 2,
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* > message to the packet's Source Address, pointing to the
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* > unrecognized Option Type.
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*/
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#define IPV6_EXT_OPT_ACTION_DISC_ERR_MCAST (0x80)
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/**
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* @brief discard the packet
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*
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* > and, only if the packet's Destination Address was not a multicast
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* > address, send an ICMP Parameter Problem, Code 2, message to the
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* > packet's Source Address, pointing to the unrecognized Option Type.
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*/
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#define IPV6_EXT_OPT_ACTION_DISC_ERR (0xc0)
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* NET_IPV6_EXT_OPT_H */
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/** @} */
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