kernel: remove support for kernel 4.9
[openwrt/staging/dedeckeh.git] / target / linux / generic / pending-4.9 / 150-bridge_allow_receiption_on_disabled_port.patch
diff --git a/target/linux/generic/pending-4.9/150-bridge_allow_receiption_on_disabled_port.patch b/target/linux/generic/pending-4.9/150-bridge_allow_receiption_on_disabled_port.patch
deleted file mode 100644 (file)
index 9ee93c9..0000000
+++ /dev/null
@@ -1,47 +0,0 @@
-From: Stephen Hemminger <stephen@networkplumber.org>
-Subject: bridge: allow receiption on disabled port
-
-When an ethernet device is enslaved to a bridge, and the bridge STP
-detects loss of carrier (or operational state down), then normally
-packet receiption is blocked.
-
-This breaks control applications like WPA which maybe expecting to
-receive packets to negotiate to bring link up. The bridge needs to
-block forwarding packets from these disabled ports, but there is no
-hard requirement to not allow local packet delivery.
-
-Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
-
---- a/net/bridge/br_input.c
-+++ b/net/bridge/br_input.c
-@@ -231,7 +231,10 @@ static void __br_handle_local_finish(str
- /* note: already called with rcu_read_lock */
- static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
- {
--      __br_handle_local_finish(skb);
-+      struct net_bridge_port *p = br_port_get_rcu(skb->dev);
-+
-+      if (p->state != BR_STATE_DISABLED)
-+              __br_handle_local_finish(skb);
-       /* return 1 to signal the okfn() was called so it's ok to use the skb */
-       return 1;
-@@ -321,6 +324,17 @@ rx_handler_result_t br_handle_frame(stru
- forward:
-       switch (p->state) {
-+      case BR_STATE_DISABLED:
-+              if (ether_addr_equal(p->br->dev->dev_addr, dest))
-+                      skb->pkt_type = PACKET_HOST;
-+
-+              if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING,
-+                      dev_net(skb->dev), NULL, skb, skb->dev, NULL,
-+                      br_handle_local_finish) == 1) {
-+                      return RX_HANDLER_PASS;
-+              }
-+              break;
-+
-       case BR_STATE_FORWARDING:
-               rhook = rcu_dereference(br_should_route_hook);
-               if (rhook) {