ipv6: introduce secret_stable to ipv6_devconf
authorHannes Frederic Sowa <hannes@stressinduktion.org>
Mon, 23 Mar 2015 22:36:00 +0000 (23:36 +0100)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 Mar 2015 02:12:08 +0000 (22:12 -0400)
commit3d1bec99320d4e96897805440f8cf4f68eff226b
tree4926f2e4fe0ef525249397d391443e24cbea3fc2
parentab2bb3241739870d417979a81843631e5588a2d7
ipv6: introduce secret_stable to ipv6_devconf

This patch implements the procfs logic for the stable_address knob:
The secret is formatted as an ipv6 address and will be stored per
interface and per namespace. We track initialized flag and return EIO
errors until the secret is set.

We don't inherit the secret to newly created namespaces.

Cc: Erik Kline <ek@google.com>
Cc: Fernando Gont <fgont@si6networks.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: YOSHIFUJI Hideaki/吉藤英明 <hideaki.yoshifuji@miraclelinux.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/ipv6.h
include/uapi/linux/ipv6.h
net/ipv6/addrconf.c