RPL source routing header extension

Implementation of RPL source routing extension headers. More...

Detailed Description

Implementation of RPL source routing extension headers.

See also

RFC 6554

Files
file	srh.h
	Definititions for RPL source routing extension headers.

Data Structures
struct	gnrc_rpl_srh_t
	The RPL Source routing header. More...

Functions
int	gnrc_rpl_srh_process (ipv6_hdr_t *ipv6, gnrc_rpl_srh_t *rh, void **err_ptr)
	Process the RPL source routing header.

Function Documentation

gnrc_rpl_srh_process()

int gnrc_rpl_srh_process	(	ipv6_hdr_t *	ipv6,
		gnrc_rpl_srh_t *	rh,
		void **	err_ptr
	)

Process the RPL source routing header.

Precondition

rh->seq_left > 0; The 0 case means the destination is reached and common among all routing headers, so it should be handled by an external routing header handler.

Parameters

[in,out]	ipv6	The IPv6 header of the incoming packet.
[in]	rh	A RPL source routing header.
[out]	err_ptr	A pointer to an erroneous octet within rh when return value is GNRC_IPV6_EXT_RH_ERROR. For any other return value than GNRC_IPV6_EXT_RH_ERROR the value of err_ptr is not defined.

Returns

GNRC_IPV6_EXT_RH_AT_DST, on success

GNRC_IPV6_EXT_RH_FORWARDED, when pkt should be forwarded

GNRC_IPV6_EXT_RH_ERROR, on error