diff options
Diffstat (limited to 'target/linux/generic/patches-3.18')
| -rw-r--r-- | target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch b/target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch deleted file mode 100644 index 3572661745..0000000000 --- a/target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch +++ /dev/null @@ -1,179 +0,0 @@ -From: Felix Fietkau <nbd@openwrt.org> -Subject: [PATCH] bridge: optimize netfilter hooks - -Bypass all netfilter hooks if the sysctls for that functionality have -been disabled - eliminates the overhead of enabling -CONFIG_BRIDGE_NETFILTER in the kernel config ---- ---- a/net/bridge/br_forward.c -+++ b/net/bridge/br_forward.c -@@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(br_dev_queue_push_xmit - - int br_forward_finish(struct sk_buff *skb) - { -- return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev, -+ return BR_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev, - br_dev_queue_push_xmit); - - } -@@ -77,7 +77,7 @@ static void __br_deliver(const struct ne - return; - } - -- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev, -+ BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev, - br_forward_finish); - } - -@@ -98,7 +98,7 @@ static void __br_forward(const struct ne - skb->dev = to->dev; - skb_forward_csum(skb); - -- NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev, -+ BR_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev, - br_forward_finish); - } - ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -53,7 +53,7 @@ static int br_pass_frame_up(struct sk_bu - if (!skb) - return NET_RX_DROP; - -- return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL, -+ return BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL, - netif_receive_skb); - } - -@@ -219,7 +219,7 @@ rx_handler_result_t br_handle_frame(stru - } - - /* Deliver packet to local host only */ -- if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev, -+ if (BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev, - NULL, br_handle_local_finish)) { - return RX_HANDLER_CONSUMED; /* consumed by filter */ - } else { -@@ -234,7 +234,7 @@ forward: - if (ether_addr_equal(p->br->dev->dev_addr, dest)) - skb->pkt_type = PACKET_HOST; - -- if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL, -+ if (BR_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL, - br_handle_local_finish)) - break; - -@@ -256,7 +256,7 @@ forward: - if (ether_addr_equal(p->br->dev->dev_addr, dest)) - skb->pkt_type = PACKET_HOST; - -- NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL, -+ BR_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL, - br_handle_frame_finish); - break; - default: ---- a/net/bridge/br_multicast.c -+++ b/net/bridge/br_multicast.c -@@ -814,7 +814,7 @@ static void __br_multicast_send_query(st - - if (port) { - skb->dev = port->dev; -- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev, -+ BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev, - br_dev_queue_push_xmit); - } else { - br_multicast_select_own_querier(br, ip, skb); ---- a/net/bridge/br_netfilter.c -+++ b/net/bridge/br_netfilter.c -@@ -73,6 +73,15 @@ static int brnf_pass_vlan_indev __read_m - #define IS_ARP(skb) \ - (!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_ARP)) - -+int brnf_call_ebtables __read_mostly = 0; -+EXPORT_SYMBOL_GPL(brnf_call_ebtables); -+ -+bool br_netfilter_run_hooks(void) -+{ -+ return brnf_call_iptables | brnf_call_ip6tables | brnf_call_arptables | -+ brnf_call_ebtables; -+} -+ - static inline __be16 vlan_proto(const struct sk_buff *skb) - { - if (vlan_tx_tag_present(skb)) ---- a/net/bridge/br_private.h -+++ b/net/bridge/br_private.h -@@ -778,6 +778,24 @@ static inline void br_nf_core_fini(void) - #define br_netfilter_rtable_init(x) - #endif - -+#if IS_BUILTIN(CONFIG_BRIDGE_NETFILTER) -+extern int brnf_call_ebtables; -+bool br_netfilter_run_hooks(void); -+#else -+#define br_netfilter_run_hooks() false -+#endif -+ -+static inline int -+BR_HOOK(uint8_t pf, unsigned int hook, struct sk_buff *skb, -+ struct net_device *in, struct net_device *out, -+ int (*okfn)(struct sk_buff *)) -+{ -+ if (!br_netfilter_run_hooks()) -+ return okfn(skb); -+ -+ return NF_HOOK(pf, hook, skb, in, out, okfn); -+} -+ - /* br_stp.c */ - void br_log_state(const struct net_bridge_port *p); - void br_set_state(struct net_bridge_port *p, unsigned int state); ---- a/net/bridge/br_stp_bpdu.c -+++ b/net/bridge/br_stp_bpdu.c -@@ -54,7 +54,7 @@ static void br_send_bpdu(struct net_brid - - skb_reset_mac_header(skb); - -- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev, -+ BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev, - dev_queue_xmit); - } - ---- a/net/bridge/netfilter/ebtables.c -+++ b/net/bridge/netfilter/ebtables.c -@@ -2414,11 +2414,19 @@ static int __init ebtables_init(void) - } - - printk(KERN_INFO "Ebtables v2.0 registered\n"); -+ -+#if IS_BUILTIN(CONFIG_BRIDGE_NETFILTER) -+ brnf_call_ebtables = 1; -+#endif -+ - return 0; - } - - static void __exit ebtables_fini(void) - { -+#if IS_BUILTIN(CONFIG_BRIDGE_NETFILTER) -+ brnf_call_ebtables = 0; -+#endif - nf_unregister_sockopt(&ebt_sockopts); - xt_unregister_target(&ebt_standard_target); - printk(KERN_INFO "Ebtables v2.0 unregistered\n"); ---- a/net/Kconfig -+++ b/net/Kconfig -@@ -177,11 +177,11 @@ config NETFILTER_ADVANCED - If unsure, say Y. - - config BRIDGE_NETFILTER -- tristate "Bridged IP/ARP packets filtering" -+ bool "Bridged IP/ARP packets filtering" - depends on BRIDGE - depends on NETFILTER && INET - depends on NETFILTER_ADVANCED -- default m -+ default y - ---help--- - Enabling this option will let arptables resp. iptables see bridged - ARP resp. IP traffic. If you want a bridging firewall, you probably |