These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / include / net / ip6_route.h

diff --git a/kernel/include/net/ip6_route.h b/kernel/include/net/ip6_route.h
index 5e19206..295d291 100644 (file)
--- a/kernel/include/net/ip6_route.h
+++ b/kernel/include/net/ip6_route.h
@@ -64,8 +64,16 @@ static inline bool rt6_need_strict(const struct in6_addr *daddr)
 
 void ip6_route_input(struct sk_buff *skb);
 
-struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk,
-                                  struct flowi6 *fl6);
+struct dst_entry *ip6_route_output_flags(struct net *net, const struct sock *sk,
+                                        struct flowi6 *fl6, int flags);
+
+static inline struct dst_entry *ip6_route_output(struct net *net,
+                                                const struct sock *sk,
+                                                struct flowi6 *fl6)
+{
+       return ip6_route_output_flags(net, sk, fl6, 0);
+}
+
 struct dst_entry *ip6_route_lookup(struct net *net, struct flowi6 *fl6,
                                   int flags);
 
@@ -133,27 +141,18 @@ void rt6_clean_tohost(struct net *net, struct in6_addr *gateway);
 /*
  *     Store a destination cache entry in a socket
  */
-static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst,
-                                  const struct in6_addr *daddr,
-                                  const struct in6_addr *saddr)
+static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
+                                const struct in6_addr *daddr,
+                                const struct in6_addr *saddr)
 {
        struct ipv6_pinfo *np = inet6_sk(sk);
-       struct rt6_info *rt = (struct rt6_info *) dst;
 
+       np->dst_cookie = rt6_get_cookie((struct rt6_info *)dst);
        sk_setup_caps(sk, dst);
        np->daddr_cache = daddr;
 #ifdef CONFIG_IPV6_SUBTREES
        np->saddr_cache = saddr;
 #endif
-       np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
-}
-
-static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
-                                struct in6_addr *daddr, struct in6_addr *saddr)
-{
-       spin_lock(&sk->sk_dst_lock);
-       __ip6_dst_store(sk, dst, daddr, saddr);
-       spin_unlock(&sk->sk_dst_lock);
 }
 
 static inline bool ipv6_unicast_destination(const struct sk_buff *skb)
@@ -163,15 +162,18 @@ static inline bool ipv6_unicast_destination(const struct sk_buff *skb)
        return rt->rt6i_flags & RTF_LOCAL;
 }
 
-static inline bool ipv6_anycast_destination(const struct sk_buff *skb)
+static inline bool ipv6_anycast_destination(const struct dst_entry *dst,
+                                           const struct in6_addr *daddr)
 {
-       struct rt6_info *rt = (struct rt6_info *) skb_dst(skb);
+       struct rt6_info *rt = (struct rt6_info *)dst;
 
-       return rt->rt6i_flags & RTF_ANYCAST;
+       return rt->rt6i_flags & RTF_ANYCAST ||
+               (rt->rt6i_dst.plen != 128 &&
+                ipv6_addr_equal(&rt->rt6i_dst.addr, daddr));
 }
 
-int ip6_fragment(struct sock *sk, struct sk_buff *skb,
-                int (*output)(struct sock *, struct sk_buff *));
+int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
+                int (*output)(struct net *, struct sock *, struct sk_buff *));
 
 static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
 {
@@ -194,9 +196,15 @@ static inline bool ip6_sk_ignore_df(const struct sock *sk)
               inet6_sk(sk)->pmtudisc == IPV6_PMTUDISC_OMIT;
 }
 
-static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt)
+static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt,
+                                          struct in6_addr *daddr)
 {
-       return &rt->rt6i_gateway;
+       if (rt->rt6i_flags & RTF_GATEWAY)
+               return &rt->rt6i_gateway;
+       else if (unlikely(rt->rt6i_flags & RTF_CACHE))
+               return &rt->rt6i_dst.addr;
+       else
+               return daddr;
 }
 
 #endif