Routing

IPv4 routing support. More...

Functions
syscall	rtAdd (const struct netaddr *dst, const struct netaddr *gate, const struct netaddr *mask, struct netif *nif)
struct rtEntry *	rtAlloc (void)
syscall	rtClear (struct netif *nif)
thread	rtDaemon (void)
syscall	rtDefault (const struct netaddr *gate, struct netif *nif)
syscall	rtInit (void)
struct rtEntry *	rtLookup (const struct netaddr *addr)
syscall	rtRecv (struct packet *pkt)
syscall	rtRemove (const struct netaddr *dst)
syscall	rtSend (struct packet *pkt)

Detailed Description

IPv4 routing support.

Function Documentation

struct rtEntry* rtAlloc

(

void

)

Allocates an entry from the route table.

Returns

entry in route table, NULL if all used, SYSERR if error occurs

syscall rtClear

(

struct netif *

nif

)

Removes all entries for a network interface from the routing table.

Parameters

nif	network interface

Returns

OK if entries are removed successfully, otherwise SYSERR

thread rtDaemon

(

void

)

Route dameon to route packets

syscall rtDefault	(	const struct netaddr *	gate,
		struct netif *	nif
	)

Set the default route.

Parameters

gate	gateway for default route
nif	network interface for default route

Returns

OK if added/updated successfully, otherwise SYSERR

syscall rtInit

(

void

)

Initialize the route table and route daemon.

Returns

OK if initialization is successful, otherwise SYSERR

struct rtEntry* rtLookup

(

const struct netaddr *

addr

)

Looks up an entry in the routing table

Parameters

addr	the IP address that needs routing

Returns

a route table entry, NULL if none matches, SYSERR on error

syscall rtRemove

(

const struct netaddr *

dst

)

Removes any entry based on its destination.

Parameters

dst	destination IP address

Returns

OK if the entry is removed successfully, otherwise SYSERR

syscall rtSend

(

struct packet *

pkt

)

Attempt to route a packet.

Parameters

pkt	incoming packet to route

Returns

OK if packet is routed successfully, otherwise SYSERR