diff options
| author | Lorenzo Colitti <lorenzo@google.com> | 2013-03-03 20:46:46 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-04 14:12:07 -0500 |
| commit | 3e8b0ac3e41e3c882222a5522d5df7212438ab51 (patch) | |
| tree | 62a9dff04de443b60e6936de850c4483e63b372a /net/ipv6 | |
| parent | de5fb0a053482d89262c3284b67884cd2c621adc (diff) | |
| download | linux-3e8b0ac3e41e3c882222a5522d5df7212438ab51.tar.gz | |
net: ipv6: Don't purge default router if accept_ra=2
Setting net.ipv6.conf.<interface>.accept_ra=2 causes the kernel to accept RAs even when forwarding is enabled. However, enabling forwarding purges all default routes on the system, breaking connectivity until the next RA is received. Fix this by not purging default routes on interfaces that have accept_ra=2. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/route.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 928266569689..e5fe0041adfa 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1915,7 +1915,8 @@ void rt6_purge_dflt_routers(struct net *net) restart: read_lock_bh(&table->tb6_lock); for (rt = table->tb6_root.leaf; rt; rt = rt->dst.rt6_next) { - if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) { + if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF) && + (!rt->rt6i_idev || rt->rt6i_idev->cnf.accept_ra != 2)) { dst_hold(&rt->dst); read_unlock_bh(&table->tb6_lock); ip6_del_rt(rt); |