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Commit af60234a authored by Pooventhiran G's avatar Pooventhiran G Committed by Gerrit - the friendly Code Review server
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bridge: Port Hy-Fi bridging hooks 



Changes to port Hy-Fi bridging hooks and to export
br_fdb_find_rcu symbol.

Change-Id: Ife2a9ac76e02fff56b8c4acaa97794df7e98863d
Signed-off-by: default avatarMuthuchamy Kumar <quic_muthucha@quicinc.com>
Signed-off-by: default avatarPooventhiran G <quic_pooventh@quicinc.com>
parent f89c40b1

include/linux/if_bridge.h

+12 −0
Original line number Diff line number Diff line
@@ -50,6 +50,11 @@ struct br_ip_list { 


#define BR_DEFAULT_AGEING_TIME	(300 * HZ)



//Handle HYFI_BRIDGING hooks related stuffs, only if HYFI_BRIDGE_HOOKS is defined

#ifdef CONFIG_HYFI_BRIDGE_HOOKS

struct net_bridge_port;

#endif



extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));



#ifdef CONFIG_ENABLE_SFE
@@ -151,4 +156,11 @@ br_port_flag_is_set(const struct net_device *dev, unsigned long flag) 
}

#endif



#ifdef CONFIG_HYFI_BRIDGE_HOOKS

typedef void (br_notify_hook_t)(int group, int event, const void *ptr);

extern br_notify_hook_t __rcu *br_notify_hook;

typedef int (br_multicast_handle_hook_t)(const struct net_bridge_port *src,

		struct sk_buff *skb);

extern br_multicast_handle_hook_t __rcu *br_multicast_handle_hook;

#endif

#endif

net/bridge/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -61,3 +61,15 @@ config BRIDGE_VLAN_FILTERING 
	  Say N to exclude this support and reduce the binary size.



	  If unsure, say Y.



config HYFI_BRIDGE_HOOKS

	bool "Port Hy-Fi Bridging Hooks"

	depends on BRIDGE

	depends on QGKI

	default y

	help

	  If you say Y here, then the Port Hy-Fi Bridging Hooks will be enabled.



	  Say N to exclude this support.



	  If unsure, say Y.

net/bridge/br.c

+6 −0
Original line number Diff line number Diff line
@@ -394,6 +394,12 @@ static void __exit br_deinit(void) 
	br_fdb_fini();

}



#ifdef CONFIG_HYFI_BRIDGE_HOOKS

/* Hook for bridge event notifications */

br_notify_hook_t __rcu *br_notify_hook __read_mostly;

EXPORT_SYMBOL(br_notify_hook);

#endif



module_init(br_init)

module_exit(br_deinit)

MODULE_LICENSE("GPL");

net/bridge/br_device.c

+6 −0
Original line number Diff line number Diff line
@@ -81,6 +81,12 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) 
	if (is_broadcast_ether_addr(dest)) {

		br_flood(br, skb, BR_PKT_BROADCAST, false, true);

	} else if (is_multicast_ether_addr(dest)) {

#ifdef CONFIG_HYFI_BRIDGE_HOOKS

		br_multicast_handle_hook_t *multicast_handle_hook =

			rcu_dereference(br_multicast_handle_hook);

		if (!__br_get(multicast_handle_hook, true, NULL, skb))

			goto out;

#endif

		if (unlikely(netpoll_tx_running(dev))) {

			br_flood(br, skb, BR_PKT_MULTICAST, false, true);

			goto out;

net/bridge/br_fdb.c

+7 −0
Original line number Diff line number Diff line
@@ -147,6 +147,10 @@ struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 
	return fdb_find_rcu(&br->fdb_hash_tbl, addr, vid);

}



#ifdef CONFIG_HYFI_BRIDGE_HOOKS

EXPORT_SYMBOL(br_fdb_find_rcu);

#endif



/* When a static FDB entry is added, the mac address from the entry is

 * added to the bridge private HW address list and all required ports

 * are then updated with the new information.
@@ -709,6 +713,9 @@ static void fdb_notify(struct net_bridge *br, 
		kfree_skb(skb);

		goto errout;

	}

#ifdef CONFIG_HYFI_BRIDGE_HOOKS

	__br_notify(RTNLGRP_NEIGH, type, fdb);

#endif

	rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);

	return;

errout: