Destination and hop-by-hop options extension header definitions. More...

Detailed Description

Destination and hop-by-hop options extension header definitions.

Author: Martine Lenders m.len.nosp@m.ders.nosp@m.@fu-b.nosp@m.erli.nosp@m.n.de

Definition in file opt.h.

#include <stdint.h>

Include dependency graph for opt.h:

Destination and hop-by-hop option types
See also [IANA, IPv6 parameters] (https://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xhtml#ipv6-parameters-2)
#define	IPV6_EXT_OPT_PAD1 (0x00U)
	Pad1.

#define	IPV6_EXT_OPT_PADN (0x01U)
	PadN.

#define	IPV6_EXT_OPT_JUMBO (0xC2U)
	Jumbo payload.

#define	IPV6_EXT_OPT_RPL (0x63U)
	RPL Option.

#define	IPV6_EXT_OPT_TEL (0x04U)
	Tunnel Encapsulation Limit.

#define	IPV6_EXT_OPT_RTR_ALERT (0x05U)
	Router Alert.

#define	IPV6_EXT_OPT_QUICK_START (0x26U)
	Quick-Start.

#define	IPV6_EXT_OPT_CALIPSO (0x07U)
	CALIPSO.

#define	IPV6_EXT_OPT_SMF_DPD (0x08U)
	SMF_DPD.

#define	IPV6_EXT_OPT_HOME_ADDR (0xC9U)
	Home Address.

#define	IPV6_EXT_OPT_ILNP_NONCE (0x8BU)
	ILNP Nonce.

#define	IPV6_EXT_OPT_LIO (0x8CU)
	Line-Identification Option.

#define	IPV6_EXT_OPT_MPL (0x6DU)
	MPL Option.

#define	IPV6_EXT_OPT_IP_DFF (0xEEU)
	IP_DFF.

#define	IPV6_EXT_OPT_PDM (0x0FU)
	Performance and Diagnostic Metrics.

Processing actions
See also RFC 8200, section 4.2 ‍The Option Type identifiers are internally encoded such that their highest-order 2 bits specify the action that must be taken if the processing IPv6 node does not recognize the Option Type
#define	IPV6_EXT_OPT_ACTION_MASK (0xc0)
	mask to decode action from type

#define	IPV6_EXT_OPT_ACTION_SKIP (0x00)
	skip over this option and continue processing the header

#define	IPV6_EXT_OPT_ACTION_DISC (0x40)
	discard the packet

#define	IPV6_EXT_OPT_ACTION_DISC_ERR_MCAST (0x80)
	discard the packet

#define	IPV6_EXT_OPT_ACTION_DISC_ERR (0xc0)
	discard the packet

Destination and hop-by-hop option types