[IPV6]: ROUTE: Try selecting better route for non-default routes as well.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ea6eb44..605e6f1 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -415,7 +415,7 @@ void ip6_route_input(struct sk_buff *skb)
        int attempts = 3;
        int err;
 
-       strict = ipv6_addr_type(&skb->nh.ipv6h->daddr) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL);
+       strict = ipv6_addr_type(&skb->nh.ipv6h->daddr) & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL) ? RT6_SELECT_F_IFACE : 0;
 
 relookup:
        read_lock_bh(&rt6_lock);
@@ -427,12 +427,16 @@ restart:
        rt = fn->leaf;
 
        if ((rt->rt6i_flags & RTF_CACHE)) {
-               rt = rt6_device_match(rt, skb->dev->ifindex, strict);
+               rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict | RT6_SELECT_F_REACHABLE);
+               if (rt == &ip6_null_entry)
+                       rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict);
                BACKTRACK();
                goto out;
        }
 
-       rt = rt6_device_match(rt, skb->dev->ifindex, strict);
+       rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict | RT6_SELECT_F_REACHABLE);
+       if (rt == &ip6_null_entry)
+               rt = rt6_select(&fn->leaf, skb->dev->ifindex, strict);
        BACKTRACK();
 
        dst_hold(&rt->u.dst);
@@ -497,7 +501,9 @@ restart:
        rt = fn->leaf;
 
        if ((rt->rt6i_flags & RTF_CACHE)) {
-               rt = rt6_device_match(rt, fl->oif, strict);
+               rt = rt6_select(&fn->leaf, fl->oif, strict | RT6_SELECT_F_REACHABLE);
+               if (rt == &ip6_null_entry)
+                       rt = rt6_select(&fn->leaf, fl->oif, strict);
                BACKTRACK();
                goto out;
        }
@@ -506,7 +512,9 @@ restart:
                if (rt == &ip6_null_entry)
                        rt = rt6_select(&fn->leaf, fl->oif, strict);
        } else {
-               rt = rt6_device_match(rt, fl->oif, strict);
+               rt = rt6_select(&fn->leaf, fl->oif, strict | RT6_SELECT_F_REACHABLE);
+               if (rt == &ip6_null_entry)
+                       rt = rt6_select(&fn->leaf, fl->oif, strict);
                BACKTRACK();
        }