ipv4: AF_INET link address family
authorThomas Graf <tgraf@infradead.org>
Tue, 16 Nov 2010 04:32:48 +0000 (04:32 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 17 Nov 2010 19:28:25 +0000 (11:28 -0800)
commit9f0f7272ac9506f4c8c05cc597b7e376b0b9f3e4
treed26f7c7e8f06313ffc8c0869935650f2b104ab58
parentca7479ebbd9f7621646bf2792cb7143647f035bb
ipv4: AF_INET link address family

Implements the AF_INET link address family exposing the per
device configuration settings via netlink using the attribute
IFLA_INET_CONF.

The format of IFLA_INET_CONF differs depending on the direction
the attribute is sent. The attribute sent by the kernel consists
of a u32 array, basically a 1:1 copy of in_device->cnf.data[].
The attribute expected by the kernel must consist of a sequence
of nested u32 attributes, each representing a change request,
e.g.
[IFLA_INET_CONF] = {
[IPV4_DEVCONF_FORWARDING] = 1,
[IPV4_DEVCONF_NOXFRM] = 0,
}

libnl userspace API documentation and example available from:
http://www.infradead.org/~tgr/libnl/doc-git/group__link__inet.html

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/if_link.h
net/ipv4/devinet.c