netfilter: bridge: re-order br_nf_pre_routing_finish_ipv6()

Put br_nf_pre_routing_finish_ipv6() after daddr_was_changed() and
br_nf_pre_routing_finish_bridge() to prepare calling these functions
from there.

Signed-off-by: Bernhard Thaler <bernhard.thaler@wvnet.at>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 2651876..6cb642c 100644 (file)
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -278,37 +278,6 @@ static void nf_bridge_update_protocol(struct sk_buff *skb)
        }
 }
 
-/* PF_BRIDGE/PRE_ROUTING *********************************************/
-/* Undo the changes made for ip6tables PREROUTING and continue the
- * bridge PRE_ROUTING hook. */
-static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
-{
-       struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
-       struct rtable *rt;
-
-       if (nf_bridge->pkt_otherhost) {
-               skb->pkt_type = PACKET_OTHERHOST;
-               nf_bridge->pkt_otherhost = false;
-       }
-       nf_bridge->mask &= ~BRNF_NF_BRIDGE_PREROUTING;
-
-       rt = bridge_parent_rtable(nf_bridge->physindev);
-       if (!rt) {
-               kfree_skb(skb);
-               return 0;
-       }
-       skb_dst_set_noref(skb, &rt->dst);
-
-       skb->dev = nf_bridge->physindev;
-       nf_bridge_update_protocol(skb);
-       nf_bridge_push_encap_header(skb);
-       NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
-                      skb->dev, NULL,
-                      br_handle_frame_finish, 1);
-
-       return 0;
-}
-
 /* Obtain the correct destination MAC address, while preserving the original
  * source MAC address. If we already know this address, we just copy it. If we
  * don't, we use the neighbour framework to find out. In both cases, we make
@@ -360,6 +329,38 @@ static bool daddr_was_changed(const struct sk_buff *skb,
        return ip_hdr(skb)->daddr != nf_bridge->ipv4_daddr;
 }
 
+/* PF_BRIDGE/PRE_ROUTING *********************************************/
+/* Undo the changes made for ip6tables PREROUTING and continue the
+ * bridge PRE_ROUTING hook.
+ */
+static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
+{
+       struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
+       struct rtable *rt;
+
+       if (nf_bridge->pkt_otherhost) {
+               skb->pkt_type = PACKET_OTHERHOST;
+               nf_bridge->pkt_otherhost = false;
+       }
+       nf_bridge->mask &= ~BRNF_NF_BRIDGE_PREROUTING;
+
+       rt = bridge_parent_rtable(nf_bridge->physindev);
+       if (!rt) {
+               kfree_skb(skb);
+               return 0;
+       }
+       skb_dst_set_noref(skb, &rt->dst);
+
+       skb->dev = nf_bridge->physindev;
+       nf_bridge_update_protocol(skb);
+       nf_bridge_push_encap_header(skb);
+       NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
+                      skb->dev, NULL,
+                      br_handle_frame_finish, 1);
+
+       return 0;
+}
+
 /* This requires some explaining. If DNAT has taken place,
  * we will need to fix up the destination Ethernet address.
  * This is also true when SNAT takes place (for the reply direction).