diff options
| -rw-r--r-- | include/net/ip6_route.h | 1 | ||||
| -rw-r--r-- | net/ipv6/addrconf.c | 2 | ||||
| -rw-r--r-- | net/ipv6/route.c | 23 |
3 files changed, 20 insertions, 6 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 6a2f80cbdf65..34cd3b0c6ded 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -170,6 +170,7 @@ void rt6_remove_prefsrc(struct inet6_ifaddr *ifp); void rt6_clean_tohost(struct net *net, struct in6_addr *gateway); void rt6_sync_up(struct net_device *dev, unsigned int nh_flags); void rt6_disable_ip(struct net_device *dev, unsigned long event); +void rt6_sync_down_dev(struct net_device *dev, unsigned long event); static inline const struct rt6_info *skb_rt6_info(const struct sk_buff *skb) { diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index a13e1ffe87ec..2435f7ab070b 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3438,6 +3438,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, } else if (event == NETDEV_CHANGE) { if (!addrconf_link_ready(dev)) { /* device is still not ready. */ + rt6_sync_down_dev(dev, event); break; } @@ -3449,6 +3450,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, * multicast snooping switches */ ipv6_mc_up(idev); + rt6_sync_up(dev, RTNH_F_LINKDOWN); break; } idev->if_flags |= IF_READY; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 194fe9d9cd85..2fd36c7dd143 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3498,18 +3498,29 @@ static int fib6_ifdown(struct rt6_info *rt, void *p_arg) const struct net_device *dev = arg->dev; const struct net *net = dev_net(dev); - if (rt->dst.dev == dev && - rt != net->ipv6.ip6_null_entry && - (rt->rt6i_nsiblings == 0 || netdev_unregistering(dev) || - !rt->rt6i_idev->cnf.ignore_routes_with_linkdown)) { - rt->rt6i_nh_flags |= (RTNH_F_DEAD | RTNH_F_LINKDOWN); + if (rt->dst.dev != dev || rt == net->ipv6.ip6_null_entry) + return 0; + + switch (arg->event) { + case NETDEV_UNREGISTER: return -1; + case NETDEV_DOWN: + if (rt->rt6i_nsiblings == 0 || + !rt->rt6i_idev->cnf.ignore_routes_with_linkdown) + return -1; + rt->rt6i_nh_flags |= RTNH_F_DEAD; + /* fall through */ + case NETDEV_CHANGE: + if (rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) + break; + rt->rt6i_nh_flags |= RTNH_F_LINKDOWN; + break; } return 0; } -static void rt6_sync_down_dev(struct net_device *dev, unsigned long event) +void rt6_sync_down_dev(struct net_device *dev, unsigned long event) { struct arg_netdev_event arg = { .dev = dev, |