Support for IPv6 routing header extension

GNRC implementation of IPv6 routing header extension. More...

Detailed Description

GNRC implementation of IPv6 routing header extension.

Files
file	rh.h
	GNRC routing extension header definitions.

Enumerations
enum	{ GNRC_IPV6_EXT_RH_ERROR = 0 , GNRC_IPV6_EXT_RH_AT_DST , GNRC_IPV6_EXT_RH_FORWARDED }

Functions
int	gnrc_ipv6_ext_rh_process (gnrc_pktsnip_t *pkt)
	Process the routing header of an IPv6 packet.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
GNRC_IPV6_EXT_RH_ERROR	An error occurred during routing header processing.
GNRC_IPV6_EXT_RH_AT_DST	The routing header was successfully processed and this node is the destination (i.e. ipv6_ext_rh_t::seg_left == 0)
GNRC_IPV6_EXT_RH_FORWARDED	The routing header was successfully processed and the packet was forwarded to another node or should be forwarded to another node. When gnrc_ipv6_ext_rh_process() returns this value, the packet was already forwarded to another node. Implementations for specific routing header types should leave the forwarding to the calling gnrc_ipv6_ext_rh_process() and should return GNRC_IPV6_EXT_RH_FORWARDED if they want the packet to be forwarded. They should however set ipv6_hdr_t::dst accordingly.

Definition at line 29 of file rh.h.

Function Documentation

gnrc_ipv6_ext_rh_process()

int gnrc_ipv6_ext_rh_process

(

gnrc_pktsnip_t *

pkt

)

Process the routing header of an IPv6 packet.

Parameters

[in]

pkt

An IPv6 packet containing the routing header in the first snip

Returns

GNRC_IPV6_EXT_RH_AT_DST, on success

GNRC_IPV6_EXT_RH_FORWARDED, when pkt was forwarded

GNRC_IPV6_EXT_RH_ERROR, on error