diff options
Diffstat (limited to 'target/linux/generic/patches-3.3/644-bridge_optimize_netfilter_hooks.patch')
| -rw-r--r-- | target/linux/generic/patches-3.3/644-bridge_optimize_netfilter_hooks.patch | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/644-bridge_optimize_netfilter_hooks.patch b/target/linux/generic/patches-3.3/644-bridge_optimize_netfilter_hooks.patch new file mode 100644 index 000000000..dafe42081 --- /dev/null +++ b/target/linux/generic/patches-3.3/644-bridge_optimize_netfilter_hooks.patch @@ -0,0 +1,146 @@ +--- a/net/bridge/br_forward.c ++++ b/net/bridge/br_forward.c +@@ -55,7 +55,7 @@ int br_dev_queue_push_xmit(struct sk_buf + + 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); + + } +@@ -74,7 +74,7 @@ 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); + } + +@@ -91,7 +91,7 @@ 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 +@@ -40,7 +40,7 @@ static int br_pass_frame_up(struct sk_bu + indev = skb->dev; + skb->dev = brdev; + +- 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); + } + +@@ -199,7 +199,7 @@ 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 { +@@ -224,7 +224,7 @@ forward: + if (!compare_ether_addr(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 +@@ -753,7 +753,7 @@ static void __br_multicast_send_query(st + if (port) { + __skb_push(skb, sizeof(struct ethhdr)); + 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, + dev_queue_xmit); + } else + netif_rx(skb); +--- a/net/bridge/br_netfilter.c ++++ b/net/bridge/br_netfilter.c +@@ -71,6 +71,15 @@ static int brnf_filter_pppoe_tagged __re + #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 +@@ -486,15 +486,29 @@ static inline bool br_multicast_is_route + + /* br_netfilter.c */ + #ifdef CONFIG_BRIDGE_NETFILTER ++extern int brnf_call_ebtables; + extern int br_netfilter_init(void); + extern void br_netfilter_fini(void); + extern void br_netfilter_rtable_init(struct net_bridge *); ++extern bool br_netfilter_run_hooks(void); + #else + #define br_netfilter_init() (0) + #define br_netfilter_fini() do { } while(0) + #define br_netfilter_rtable_init(x) ++#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 */ + extern void br_log_state(const struct net_bridge_port *p); + extern struct net_bridge_port *br_get_port(struct net_bridge *br, +--- a/net/bridge/br_stp_bpdu.c ++++ b/net/bridge/br_stp_bpdu.c +@@ -52,7 +52,7 @@ 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 +@@ -2403,11 +2403,13 @@ static int __init ebtables_init(void) + } + + printk(KERN_INFO "Ebtables v2.0 registered\n"); ++ brnf_call_ebtables = 1; + return 0; + } + + static void __exit ebtables_fini(void) + { ++ brnf_call_ebtables = 0; + nf_unregister_sockopt(&ebt_sockopts); + xt_unregister_target(&ebt_standard_target); + printk(KERN_INFO "Ebtables v2.0 unregistered\n"); |