IPv6 Routing
[IP Core Functions]

Collaboration diagram for IPv6 Routing:

Files
file	fip_route6.c
	IPv6 Routing Functions.
Functions
fip_return_t	fip_route6_addRoute (const unsigned char route[], unsigned char routeLen, unsigned char metric, fip_ifnum_t interface, fip_vlifetime_t lifetime, const fip_ip6addr_t *const nextHop, fip_bool_t advRoute)
	Add a route to the route table, does not check if entry exists already.
fip_route6_searchStatus_t	fip_route6_findRouteByDestination (const unsigned char *route, unsigned char routeLen)
	Find an exact entry in the routing table, used to delete/modify that entry.
fip_route6_searchStatus_t	fip_route6_findRouteByNextHop (const fip_ip6addr_t *const nextHop)
	Find an exact entry in the routing table, used to delete/modify that entry.
fip_ds6_searchStatus_t	fip_route6_findBestRoute (const fip_ip6addr_t *const destination)
	Find the best route for the destination.
const fip_ip6addr_t *	fip_route6_getNextHop (void)
	ONLY called for unicast!
void	fip_route6_process (void)
	IPv6 Packet is not actually destined to use, BUT we have forwarding enabled.

---

Function Documentation

fip_return_t fip_route6_addRoute	(	const unsigned char	route[],
		unsigned char	routeLen,
		unsigned char	metric,
		fip_ifnum_t	interface,
		fip_vlifetime_t	lifetime,
		const fip_ip6addr_t *const	nextHop,
		fip_bool_t	advRoute
	)

Add a route to the route table, does not check if entry exists already.

Parameters:

	route	The destination of the route, for example 2001:1:2::
	routeLen	The length in bits that 'route' is valid for
	metric	The route metric
	interface	Interface on which the next hop is located
	lifetime	Lifetime of the route, 0xffffffff or 0 are both infinite.
	nextHop	The next-hop IP address
	advRoute	For routers only, flag to indicate it route is advertised

Returns:

Result of adding route

Return values:

	RV_OK	if added OK
	RV_PARAMETER_RROR	if parameter had a fault
	RV_MEMORY_ERROR	if routing table is full

References fip_ip6addr_t::addr, fip_myip6route_t::advRoute, fip_myip6route_t::expireTime32S, fip_ip6addr_cpy, fip_memcpy_ucharLen, fip_myip6route_t::interfaceNext, fip_myip6route_t::length, fip_myip6route_t::metric, ROUTE_UNUSED, ROUTE_USED, RV_MEMORY_ERROR, RV_OK, RV_PARAMETER_ERROR, fip_myip6route_t::state, and fip_myip6route_t::validLifetime.

Referenced by fip_console_route().

fip_ds6_searchStatus_t fip_route6_findBestRoute

(

const fip_ip6addr_t *const

destination

)

Find the best route for the destination.

Parameters:

destination

IP Address

Returns:

fip_ds6_searchStatus_t indicating if successful, and if so the index to that router.

References fip_ip6addr_t::addr, fip_ds6_searchStatus_t::index, fip_ds6_searchStatus_t::itemFound, fip_myip6route_t::length, and ROUTE_UNUSED.

Referenced by fip_route6_getNextHop().

fip_route6_searchStatus_t fip_route6_findRouteByDestination	(	const unsigned char *	route,
		unsigned char	routeLen
	)

Find an exact entry in the routing table, used to delete/modify that entry.

Parameters:

	route	The destination of the route, for example 2001:1:2::
	routeLen	The length in bits that route is valid for

Returns:

fip_route6_searchStatus_t indicating status, and if found the index

References fip_ds6_searchStatus_t::index, fip_ds6_searchStatus_t::itemFound, and ROUTE_UNUSED.

fip_route6_searchStatus_t fip_route6_findRouteByNextHop

(

const fip_ip6addr_t *const

nextHop

)

Find an exact entry in the routing table, used to delete/modify that entry.

Parameters:

nextHop

next hop IP Address

Returns:

fip_route6_searchStatus_t indicating status, and if found the index

References fip_ip6addr_t::addr, and fip_ds6_searchList().

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const fip_ip6addr_t* fip_route6_getNextHop

(

void

)

ONLY called for unicast!

FIXME

References fip_ip6addr_t::addr, fip_if6_isDestMyUnicast(), fip_memcpy_ucharLen, fip_nd6_neighbourCache_lookupByIp(), fip_packet_activeDrop(), fip_packet_getAttr, fip_packet_getFromIP6Hdr_destPtr, fip_packet_getFromIP6Hdr_isDestLinkLocal, fip_packet_setAttr, fip_packet_setLLDestAddr, fip_route6_findBestRoute(), fip_ds6_searchStatus_t::index, fip_myip6route_t::interfaceNext, fip_ds6_searchStatus_t::itemFound, fip_myip6route_t::nextHop, PS_PROCESSIP, RV_OK, and TRACE.

Referenced by fip_ip_send().

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