Definitions related to 6Lo router (6LR) functionality of the NIB. More...

Detailed Description

Definitions related to 6Lo router (6LR) functionality of the NIB.

See also: CONFIG_GNRC_IPV6_NIB_6LR

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

Definition in file _nib-6lr.h.

#include <kernel_defines.h>
#include "net/gnrc/ipv6/nib/conf.h"
#include "net/ndp.h"
#include "net/sixlowpan/nd.h"
#include "_nib-arsm.h"
#include "_nib-6ln.h"
#include "_nib-internal.h"

Include dependency graph for _nib-6lr.h:

Go to the source code of this file.

static uint16_t	_get_ar_state (const _nib_onl_entry_t *entry)
	Gets address registration state of a neighbor.

static void	_set_ar_state (_nib_onl_entry_t *entry, uint16_t state)
	Sets address registration state of a neighbor.

static bool	_rtr_sol_on_6lr (const gnrc_netif_t netif, const icmpv6_hdr_t icmpv6)
	Checks if the received message is a router solicitation and the interface represents a 6Lo router.

uint8_t	_reg_addr_upstream (gnrc_netif_t netif, const ipv6_hdr_t ipv6, const icmpv6_hdr_t icmpv6, const sixlowpan_nd_opt_ar_t aro, const ndp_opt_t sl2ao, _nib_onl_entry_t nce)
	Registers an address to the (upstream; in case of multihop DAD) router.

gnrc_pktsnip_t *	_copy_and_handle_aro (gnrc_netif_t netif, const ipv6_hdr_t ipv6, const ndp_nbr_sol_t nbr_sol, const sixlowpan_nd_opt_ar_t aro, const ndp_opt_t *sl2ao)
	Handles and copies ARO from NS to NA.

Function Documentation

◆ _copy_and_handle_aro()

gnrc_pktsnip_t * _copy_and_handle_aro	(	gnrc_netif_t *	netif,
		const ipv6_hdr_t *	ipv6,
		const ndp_nbr_sol_t *	nbr_sol,
		const sixlowpan_nd_opt_ar_t *	aro,
		const ndp_opt_t *	sl2ao
	)

Handles and copies ARO from NS to NA.

Parameters

[in]	netif	The interface the ARO-carrying NS came over.
[in]	ipv6	The IPv6 header of the message carrying the original ARO.
[in]	nbr_sol	The neighbor solicitation carrying the original ARO (handed over as icmpv6_hdr_t, since it is just handed to _handle_aro()).
[in]	aro	The original ARO, must not be NULL
[in]	sl2ao	SL2AO associated with the ARO.

Returns: registration status of the address (including _ADDR_REG_STATUS_TENTATIVE and _ADDR_REG_STATUS_IGNORE).

◆ _get_ar_state()

static uint16_t _get_ar_state ( const _nib_onl_entry_t * entry )

inlinestatic

Gets address registration state of a neighbor.

Parameters

[in] entry Neighbor cache entry representing the neighbor.

Returns: Address registration state of the entry.

Definition at line 44 of file _nib-6lr.h.

◆ _reg_addr_upstream()

uint8_t _reg_addr_upstream	(	gnrc_netif_t *	netif,
		const ipv6_hdr_t *	ipv6,
		const icmpv6_hdr_t *	icmpv6,
		const sixlowpan_nd_opt_ar_t *	aro,
		const ndp_opt_t *	sl2ao,
		_nib_onl_entry_t *	nce
	)

Registers an address to the (upstream; in case of multihop DAD) router.

Parameters

[in]	netif	The interface the ARO-carrying NS came over.
[in]	ipv6	The IPv6 header of the message carrying the ARO.
[in]	icmpv6	The neighbor solicitation carrying the ARO (handed over as icmpv6_hdr_t, since it is just handed to the SL2AO handler function).
[in]	aro	ARO that carries the address registration information.
[in]	sl2ao	SL2AO associated with the ARO.
[in]	nce	The local neighbor cache entry the registration information is supposed to be copied into. May be NULL (this might create one).

Returns: registration status of the address (including _ADDR_REG_STATUS_TENTATIVE and _ADDR_REG_STATUS_IGNORE).

◆ _rtr_sol_on_6lr()

static bool _rtr_sol_on_6lr	(	const gnrc_netif_t *	netif,
		const icmpv6_hdr_t *	icmpv6
	)

inlinestatic

Checks if the received message is a router solicitation and the interface represents a 6Lo router.

See also: RFC 6775

Parameters

[in]	netif	A network interface.
[in]	icmpv6	An ICMPv6 message.

Definition at line 70 of file _nib-6lr.h.

◆ _set_ar_state()

static void _set_ar_state	(	_nib_onl_entry_t *	entry,
		uint16_t	state
	)

inlinestatic

Sets address registration state of a neighbor.

Parameters

[in]	entry	Neighbor cache entry representing the neighbor.
[in]	state	Address registration state for the neighbor.

Definition at line 55 of file _nib-6lr.h.