ipv6: always set the new created dst's from in ip6_rt_copy
authorLi RongQing <roy.qing.li@gmail.com>
Thu, 19 Dec 2013 04:40:26 +0000 (12:40 +0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 19 Dec 2013 23:35:21 +0000 (18:35 -0500)
commit24f5b855e17df7e355eacd6c4a12cc4d6a6c9ff0
treefe53a5a19fc028aaa1714298a9e2a87730c8366d
parent7a2a84518cfb263d2c4171b3d63671f88316adb2
ipv6: always set the new created dst's from in ip6_rt_copy

ip6_rt_copy only sets dst.from if ort has flag RTF_ADDRCONF and RTF_DEFAULT.
but the prefix routes which did get installed by hand locally can have an
expiration, and no any flag combination which can ensure a potential from
does never expire, so we should always set the new created dst's from.

This also fixes the new created dst is always expired since the ort, which
is created by RA, maybe has RTF_EXPIRES and RTF_ADDRCONF, but no RTF_DEFAULT.

Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
CC: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/route.c