Routing

Modules
	Route Object
	Utilities
	Routing Utility Functions.

Macros
#define	ROUTE_CACHE_CONTENT   1
	When passed to rtnl_route_alloc_cache() the cache will correspond to the contents of the routing cache instead of the actual routes.

Cache Management
int	rtnl_route_alloc_cache (struct nl_sock *sk, int family, int flags, struct nl_cache **result)
	Build a route cache holding all routes currently configured in the kernel. More...

Route Addition
int	rtnl_route_build_add_request (struct rtnl_route *tmpl, int flags, struct nl_msg **result)
int	rtnl_route_add (struct nl_sock *sk, struct rtnl_route *route, int flags)
int	rtnl_route_build_del_request (struct rtnl_route *tmpl, int flags, struct nl_msg **result)
int	rtnl_route_delete (struct nl_sock *sk, struct rtnl_route *route, int flags)

Detailed Description

Function Documentation

int rtnl_route_alloc_cache	(	struct nl_sock *	sk,
		int	family,
		int	flags,
		struct nl_cache **	result
	)

Build a route cache holding all routes currently configured in the kernel.

Parameters

sk	Netlink socket.
family	Address family of routes to cover or AF_UNSPEC
flags	Flags
result	Result pointer

Allocates a new cache, initializes it properly and updates it to contain all routes currently configured in the kernel.

Valid flags:

• ROUTE_CACHE_CONTENT - Cache will contain contents of routing cache instead of actual routes.

Note

The caller is responsible for destroying and freeing the cache after using it.

Returns

0 on success or a negative error code.

Definition at line 80 of file route.c.

References nl_cache_alloc(), and nl_cache_refill().

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