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-rw-r--r--net/ipv6/route.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0190e39096b9..8a777932786d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -280,10 +280,13 @@ static int inline rt6_check_neigh(struct rt6_info *rt)
280{ 280{
281 struct neighbour *neigh = rt->rt6i_nexthop; 281 struct neighbour *neigh = rt->rt6i_nexthop;
282 int m = 0; 282 int m = 0;
283 if (neigh) { 283 if (rt->rt6i_flags & RTF_NONEXTHOP ||
284 !(rt->rt6i_flags & RTF_GATEWAY))
285 m = 1;
286 else if (neigh) {
284 read_lock_bh(&neigh->lock); 287 read_lock_bh(&neigh->lock);
285 if (neigh->nud_state & NUD_VALID) 288 if (neigh->nud_state & NUD_VALID)
286 m = 1; 289 m = 2;
287 read_unlock_bh(&neigh->lock); 290 read_unlock_bh(&neigh->lock);
288 } 291 }
289 return m; 292 return m;
@@ -292,15 +295,18 @@ static int inline rt6_check_neigh(struct rt6_info *rt)
292static int rt6_score_route(struct rt6_info *rt, int oif, 295static int rt6_score_route(struct rt6_info *rt, int oif,
293 int strict) 296 int strict)
294{ 297{
295 int m = rt6_check_dev(rt, oif); 298 int m, n;
299
300 m = rt6_check_dev(rt, oif);
296 if (!m && (strict & RT6_SELECT_F_IFACE)) 301 if (!m && (strict & RT6_SELECT_F_IFACE))
297 return -1; 302 return -1;
298#ifdef CONFIG_IPV6_ROUTER_PREF 303#ifdef CONFIG_IPV6_ROUTER_PREF
299 m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->rt6i_flags)) << 2; 304 m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->rt6i_flags)) << 2;
300#endif 305#endif
301 if (rt6_check_neigh(rt)) 306 n = rt6_check_neigh(rt);
307 if (n > 1)
302 m |= 16; 308 m |= 16;
303 else if (strict & RT6_SELECT_F_REACHABLE) 309 else if (!n && strict & RT6_SELECT_F_REACHABLE)
304 return -1; 310 return -1;
305 return m; 311 return m;
306} 312}