API for the Neighbor Discovery Protocol More...

Functions
int	net_ndp_init (void)
	Init NDP.

void	net_ndp_shutdown (void)
	Shutdown NDP.

void	net_ndp_gc (void)
	Garbage collect timed out NDP entries.

int	net_ndp_insert (netif_t nif, const uint8 mac[6], const struct in6_addr ip, int unsol)
	Add an entry to the NDP cache.

int	net_ndp_lookup (netif_t net, const struct in6_addr ip, uint8 mac_out[6], const ipv6_hdr_t pkt, const uint8 data, int data_size)
	Look up an entry from the NDP cache.

Detailed Description

API for the Neighbor Discovery Protocol

Function Documentation

◆ net_ndp_gc()

void net_ndp_gc ( void )

Garbage collect timed out NDP entries.

This will be called periodically as NDP queries come in.

◆ net_ndp_init()

int net_ndp_init ( void )

Init NDP.

Return values

0	On success (no error conditions defined).

◆ net_ndp_insert()

int net_ndp_insert	(	netif_t *	nif,
		const uint8	mac[6],
		const struct in6_addr *	ip,
		int	unsol )

Add an entry to the NDP cache.

Parameters

nif	The network device in question.
mac	The MAC address for the entry.
ip	The IPv6 address for the entry.
unsol	Was this unsolicited?

Returns: 0 on success, <0 on failure.

◆ net_ndp_lookup()

int net_ndp_lookup	(	netif_t *	net,
		const struct in6_addr *	ip,
		uint8	mac_out[6],
		const ipv6_hdr_t *	pkt,
		const uint8 *	data,
		int	data_size )

Look up an entry from the NDP cache.

If no entry is found, then an NDP query will be sent and an error will be returned. If you specify a packet with the call, it will be sent when the reply comes in.

Parameters

net	The network device to use.
ip	The IPv6 address to query.
mac_out	Storage for the MAC address on success.
pkt	A simple IPv6 header, if you want to send a packet when a reply comes in.
data	Anything that comes after the header.
data_size	The size of data.

Returns: 0 on success, <0 on failure.

◆ net_ndp_shutdown()

void net_ndp_shutdown ( void )

Shutdown NDP.