Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

[karo-tx-linux.git] / net / ipv6 / route.c

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 53617d71518850dfc26220dd15923b8027c5249a..cb32ce250db0c0fd8cdc19a066f3956a893f2fba 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1193,7 +1193,8 @@ struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk,
 
        fl6->flowi6_iif = LOOPBACK_IFINDEX;
 
-       if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl6->daddr))
+       if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl6->daddr) ||
+           fl6->flowi6_oif)
                flags |= RT6_LOOKUP_F_IFACE;
 
        if (!ipv6_addr_any(&fl6->saddr))
@@ -1322,8 +1323,7 @@ static void ip6_link_failure(struct sk_buff *skb)
        if (rt) {
                if (rt->rt6i_flags & RTF_CACHE) {
                        dst_hold(&rt->dst);
-                       if (ip6_del_rt(rt))
-                               dst_free(&rt->dst);
+                       ip6_del_rt(rt);
                } else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT)) {
                        rt->rt6i_node->fn_sernum = -1;
                }
@@ -1886,9 +1886,11 @@ int ip6_route_info_create(struct fib6_config *cfg, struct rt6_info **rt_ret)
                        rt->dst.input = ip6_pkt_prohibit;
                        break;
                case RTN_THROW:
+               case RTN_UNREACHABLE:
                default:
                        rt->dst.error = (cfg->fc_type == RTN_THROW) ? -EAGAIN
-                                       : -ENETUNREACH;
+                                       : (cfg->fc_type == RTN_UNREACHABLE)
+                                       ? -EHOSTUNREACH : -ENETUNREACH;
                        rt->dst.output = ip6_pkt_discard_out;
                        rt->dst.input = ip6_pkt_discard;
                        break;
@@ -2028,7 +2030,8 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
        struct fib6_table *table;
        struct net *net = dev_net(rt->dst.dev);
 
-       if (rt == net->ipv6.ip6_null_entry) {
+       if (rt == net->ipv6.ip6_null_entry ||
+           rt->dst.flags & DST_NOCACHE) {
                err = -ENOENT;
                goto out;
        }
@@ -2515,6 +2518,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
        rt->rt6i_dst.addr = *addr;
        rt->rt6i_dst.plen = 128;
        rt->rt6i_table = fib6_get_table(net, RT6_TABLE_LOCAL);
+       rt->dst.flags |= DST_NOCACHE;
 
        atomic_set(&rt->dst.__refcnt, 1);
 
@@ -3303,7 +3307,8 @@ errout:
        return err;
 }
 
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
+                    unsigned int nlm_flags)
 {
        struct sk_buff *skb;
        struct net *net = info->nl_net;
@@ -3318,7 +3323,7 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
                goto errout;
 
        err = rt6_fill_node(net, skb, rt, NULL, NULL, 0,
-                               event, info->portid, seq, 0, 0, 0);
+                               event, info->portid, seq, 0, 0, nlm_flags);
        if (err < 0) {
                /* -EMSGSIZE implies BUG in rt6_nlmsg_size() */
                WARN_ON(err == -EMSGSIZE);