diff options
| -rw-r--r-- | include/net/ip6_route.h | 1 | ||||
| -rw-r--r-- | net/ipv6/addrconf.c | 3 | ||||
| -rw-r--r-- | net/ipv6/route.c | 29 |
3 files changed, 33 insertions, 0 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 18e442ea93d8..caad39198c2a 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -169,6 +169,7 @@ void rt6_ifdown(struct net *net, struct net_device *dev); void rt6_mtu_change(struct net_device *dev, unsigned int mtu); 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); 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 ed06b1190f05..b6405568ed7b 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3484,6 +3484,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, if (run_pending) addrconf_dad_run(idev); + /* Device has an address by now */ + rt6_sync_up(dev, RTNH_F_DEAD); + /* * If the MTU changed during the interface down, * when the interface up, the changed MTU must be diff --git a/net/ipv6/route.c b/net/ipv6/route.c index f5eda0aeab55..4796d87e0b93 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3459,6 +3459,35 @@ void rt6_clean_tohost(struct net *net, struct in6_addr *gateway) fib6_clean_all(net, fib6_clean_tohost, gateway); } +struct arg_netdev_event { + const struct net_device *dev; + unsigned int nh_flags; +}; + +static int fib6_ifup(struct rt6_info *rt, void *p_arg) +{ + const struct arg_netdev_event *arg = p_arg; + const struct net *net = dev_net(arg->dev); + + if (rt != net->ipv6.ip6_null_entry && rt->dst.dev == arg->dev) + rt->rt6i_nh_flags &= ~arg->nh_flags; + + return 0; +} + +void rt6_sync_up(struct net_device *dev, unsigned int nh_flags) +{ + struct arg_netdev_event arg = { + .dev = dev, + .nh_flags = nh_flags, + }; + + if (nh_flags & RTNH_F_DEAD && netif_carrier_ok(dev)) + arg.nh_flags |= RTNH_F_LINKDOWN; + + fib6_clean_all(dev_net(dev), fib6_ifup, &arg); +} + struct arg_dev_net { struct net_device *dev; struct net *net; |