IP sends device configuration (see inet_fill_link_af) as an array
in the netlink information, but the indices in that array are not
exposed to userspace through any current santized header file.
It was available back in 2.6.32 (in /usr/include/linux/sysctl.h)
but was broken by:
commit 02291680ff
Author: Eric W. Biederman <ebiederm@xmission.com>
Date: Sun Feb 14 03:25:51 2010 +0000
net ipv4: Decouple ipv4 interface parameters from binary sysctl numbers
Eric was solving the sysctl problem but then the indices were re-exposed
by a later addition of devconf support for IPV4
commit 9f0f7272ac
Author: Thomas Graf <tgraf@infradead.org>
Date: Tue Nov 16 04:32:48 2010 +0000
ipv4: AF_INET link address family
Putting them in /usr/include/linux/ip.h seemed the logical match
for the DEVCONF_ definitions for IPV6 in /usr/include/linux/ip6.h
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
4a5a8aa6c9