net/bridge/br_private.h - kernel/skids - Git at Google

 /*
  *	Linux ethernet bridge
  *
  *	Authors:
  *	Lennert Buytenhek		<buytenh@gnu.org>
  *
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License
  *	as published by the Free Software Foundation; either version
  *	2 of the License, or (at your option) any later version.
  */

 #ifndef _BR_PRIVATE_H
 #define _BR_PRIVATE_H

 #include <linux/netdevice.h>
 #include <linux/if_bridge.h>
 #include <net/route.h>
 #include "br_public.h"
 #include <qtn/br_types.h>

 #define BR_HOLD_TIME (1*HZ)

 #define BR_PORT_BITS	10
 #define BR_MAX_PORTS	(1<<BR_PORT_BITS)

 #define BR_VERSION	"2.3"

 /* Path to usermode spanning tree program */
 #define BR_STP_PROG	"/sbin/bridge-stp"

 #define BR_AGE_MAX_SEC (60 * 60 * 2)
 #define BR_AGE_MIN_SEC (30 * 60)
 enum
 {
 	MCAST_FWD_BLOCK = 0,
 	MCAST_FWD_ALLOW = 1,
 };

 struct net_bridge_mcast_reqs
 {
 	mac_addr ucast_req_addr;
 	unsigned char forward;
 	struct list_head list;
 };

 struct net_bridge_subport_req {
 	uint8_t src_mac[ETH_ALEN];
 	struct net_bridge_subport_req *next;
 };

 struct net_bridge_port_group {
 	struct net_bridge_port		*port;
 	struct net_bridge_port_group	*next;
 	struct hlist_node		mglist;
 	struct rcu_head			rcu;
 	struct timer_list		timer;
 	struct timer_list		query_timer;
 	struct br_ip			addr;
 	u32				queries_sent;
 	u32				sub_port;
 	struct {
 		struct net_bridge_subport_req	*head;
 		unsigned int		count;
 	} subport_reqs;
 };

 #define BR_MCAST_SUBPORT_REQ_LIMIT	32

 struct net_bridge_mdb_entry
 {
 	struct hlist_node		hlist[2];
 	struct hlist_node		mglist;
 	struct net_bridge		*br;
 	struct net_bridge_port_group	*ports;
 	struct rcu_head			rcu;
 	struct timer_list		timer;
 	struct timer_list		query_timer;
 	struct br_ip			addr;
 	u32				queries_sent;
 	u32				report_flood_indicator;
 	unsigned long			report_target_jiffies;
 	u32				rx_specific_query;
 };

 struct net_bridge_mdb_htable
 {
 	struct hlist_head		*mhash;
 	struct rcu_head			rcu;
 	struct net_bridge_mdb_htable	*old;
 	u32				size;
 	u32				max;
 	u32				secret;
 	u32				ver;
 };

 struct br_input_skb_cb {
 	struct net_device *brdev;
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	int igmp;
 	int mrouters_only;
 	int ucast_fwd;
 #endif
 };

 #define BR_INPUT_SKB_CB(__skb)	((struct br_input_skb_cb *)(__skb)->cb)

 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb)	(BR_INPUT_SKB_CB(__skb)->mrouters_only)
 #define BR_INPUT_SKB_CB_UCAST_FWD(__skb)	(BR_INPUT_SKB_CB(__skb)->ucast_fwd)
 #else
 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb)	(0)
 #define BR_INPUT_SKB_CB_UCAST_FWD(__skb)	(0)
 #endif

 #define br_printk(level, br, format, args...)	\
 	printk(level "%s: " format, (br)->dev->name, ##args)

 #define br_err(__br, format, args...)			\
 	br_printk(KERN_ERR, __br, format, ##args)
 #define br_warn(__br, format, args...)			\
 	br_printk(KERN_WARNING, __br, format, ##args)
 #define br_notice(__br, format, args...)		\
 	br_printk(KERN_NOTICE, __br, format, ##args)
 #define br_info(__br, format, args...)			\
 	br_printk(KERN_INFO, __br, format, ##args)

 #define br_debug(br, format, args...)			\
 	pr_debug("%s: " format,  (br)->dev->name, ##args)

 extern struct notifier_block br_device_notifier;
 extern const u8 br_group_address[ETH_ALEN];

 /* called under bridge lock */
 static inline int br_is_root_bridge(const struct net_bridge *br)
 {
 	return !memcmp(&br->bridge_id, &br->designated_root, 8);
 }

 /* br_device.c */
 extern void br_dev_setup(struct net_device *dev);
 extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
 			       struct net_device *dev);
 #ifdef CONFIG_NET_POLL_CONTROLLER
 extern void br_netpoll_cleanup(struct net_device *dev);
 extern void br_netpoll_enable(struct net_bridge *br,
 			      struct net_device *dev);
 extern void br_netpoll_disable(struct net_bridge *br,
 			       struct net_device *dev);
 #else
 #define br_netpoll_cleanup(br)
 #define br_netpoll_enable(br, dev)
 #define br_netpoll_disable(br, dev)

 #endif

 /* br_fdb.c */
 extern int br_fdb_init(void);
 extern void br_fdb_fini(void);
 extern void br_fdb_flush(struct net_bridge *br);
 extern void br_fdb_changeaddr(struct net_bridge_port *p,
 			      const unsigned char *newaddr);
 extern void br_fdb_cleanup(unsigned long arg);
 extern void br_handle_fwt_capacity(struct net_bridge *br);
 extern void br_fdb_delete_by_port(struct net_bridge *br,
 				  const struct net_bridge_port *p, int do_all);
 extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
 						 const unsigned char *addr);
 extern struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br,
 					       unsigned char *addr);
 extern struct net_bridge_fdb_entry *br_fdb_get_ext(struct net_bridge *br,
 						struct sk_buff *skb,
 					       unsigned char *addr);
 extern void br_fdb_put(struct net_bridge_fdb_entry *ent);
 extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
 extern unsigned char br_fdb_get_attached(struct net_bridge *br, unsigned char *addr);
 extern unsigned char br_fdb_delete_by_sub_port(struct net_bridge *br,
 				      const struct net_bridge_port *p,
 				      port_id sub_port);
 extern int br_fdb_fillbuf(struct net_bridge *br, void *buf,
 			  unsigned long count, unsigned long off);
 extern int br_fdb_insert(struct net_bridge *br,
 			 struct net_bridge_port *source,
 			 const unsigned char *addr);
 extern void br_fdb_update_const(struct net_bridge *br,
 			  struct net_bridge_port *source,
 			  const unsigned char *addr, port_id sub_port);
 extern void br_fdb_update(struct net_bridge *br,
 			  struct net_bridge_port *source,
 			  const unsigned char *addr, port_id sub_port);
 extern void br_mcast_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
 		   const unsigned char *mcast_addr, const unsigned char *ucast_addr,port_id sub_port,
 			int op_join);
 /* br_forward.c */
 extern void br_deliver(const struct net_bridge_port *to,
 		struct sk_buff *skb);
 extern int br_dev_queue_push_xmit(struct sk_buff *skb);
 extern void br_forward(const struct net_bridge_port *to,
 		struct sk_buff *skb, struct sk_buff *skb0);
 extern int br_forward_finish(struct sk_buff *skb);
 extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb);
 extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
 			     struct sk_buff *skb2);

 /* br_if.c */
 extern void br_port_carrier_check(struct net_bridge_port *p);
 extern int br_add_bridge(struct net *net, const char *name);
 extern int br_del_bridge(struct net *net, const char *name);
 extern void br_net_exit(struct net *net);
 extern int br_add_if(struct net_bridge *br,
 	      struct net_device *dev);
 extern int br_del_if(struct net_bridge *br,
 	      struct net_device *dev);
 extern int br_min_mtu(const struct net_bridge *br);
 extern void br_features_recompute(struct net_bridge *br);

 /* br_input.c */
 extern int br_handle_frame_finish(struct sk_buff *skb);
 extern struct sk_buff *br_handle_frame(struct net_bridge_port *p,
 				       struct sk_buff *skb);

 /* br_ioctl.c */
 extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg);

 /* br_multicast.c */
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 extern int br_multicast_rcv(struct net_bridge *br,
 			    struct net_bridge_port *port,
 			    struct sk_buff *skb);
 extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
 					       struct sk_buff *skb);
 extern void br_multicast_add_port(struct net_bridge_port *port);
 extern void br_multicast_del_port(struct net_bridge_port *port);
 extern void br_multicast_enable_port(struct net_bridge_port *port);
 extern void br_multicast_disable_port(struct net_bridge_port *port);
 extern void br_multicast_init(struct net_bridge *br);
 extern void br_multicast_open(struct net_bridge *br);
 extern void br_multicast_stop(struct net_bridge *br);
 extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
 				 struct sk_buff *skb);
 extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
 				 struct sk_buff *skb, struct sk_buff *skb2);
 extern int br_multicast_set_router(struct net_bridge *br, unsigned long val);
 extern int br_multicast_set_port_router(struct net_bridge_port *p,
 					unsigned long val);
 extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
 extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
 extern void br_mdb_delete_by_sub_port(struct net_bridge *br, const struct net_bridge_port *port,
 					port_id sub_port);
 static inline bool br_multicast_is_router(struct net_bridge *br)
 {
 	return br->multicast_router == 2 ||
 	       (br->multicast_router == 1 &&
 		timer_pending(&br->multicast_router_timer));
 }
 static inline void br_reset_sub_port_bitmap(uint32_t *sub_port_map, port_id sub_port)
 {
 	port_id unmap_sub_port;

 	unmap_sub_port = BR_SUBPORT_UNMAP(sub_port);
 	sub_port_map[BR_SUBPORT_IDX(unmap_sub_port)] &= ~BR_SUBPORT_BITMAP(unmap_sub_port);
 }

 extern void br_report_flood(struct net_bridge *br,
 		struct net_bridge_mdb_entry *mp, struct sk_buff *skb);
 extern struct net_bridge_mdb_entry *br_mdb_get_ext(struct net_bridge *br, struct sk_buff *skb);
 extern void br_multicast_copy_to_sub_ports(struct net_bridge *br,
 		struct net_bridge_mdb_entry *mdst, struct sk_buff *skb);
 #else
 static inline int br_multicast_rcv(struct net_bridge *br,
 				   struct net_bridge_port *port,
 				   struct sk_buff *skb)
 {
 	return 0;
 }

 static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
 						      struct sk_buff *skb)
 {
 	return NULL;
 }

 static inline void br_multicast_add_port(struct net_bridge_port *port)
 {
 }

 static inline void br_multicast_del_port(struct net_bridge_port *port)
 {
 }

 static inline void br_multicast_enable_port(struct net_bridge_port *port)
 {
 }

 static inline void br_multicast_disable_port(struct net_bridge_port *port)
 {
 }

 static inline void br_multicast_init(struct net_bridge *br)
 {
 }

 static inline void br_multicast_open(struct net_bridge *br)
 {
 }

 static inline void br_multicast_stop(struct net_bridge *br)
 {
 }

 static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
 					struct sk_buff *skb)
 {
 }

 static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
 					struct sk_buff *skb,
 					struct sk_buff *skb2)
 {
 }

 static inline void br_report_flood(struct net_bridge *br,
 		struct net_bridge_mdb_entry *mp, struct sk_buff *skb)
 {
 }

 static inline bool br_multicast_is_router(struct net_bridge *br)
 {
 	return 0;
 }

 static inline void br_reset_sub_port_bitmap(uint32_t *sub_port_map, port_id sub_port)
 {
 }

 static inline struct net_bridge_mdb_entry *br_mdb_get_ext(struct net_bridge *br,
 		struct sk_buff *skb)
 {
 	return NULL;
 }
 #endif

 /* br_netfilter.c */
 #ifdef CONFIG_BRIDGE_NETFILTER
 extern int br_netfilter_init(void);
 extern void br_netfilter_fini(void);
 extern void br_netfilter_rtable_init(struct net_bridge *);
 #else
 #define br_netfilter_init()	(0)
 #define br_netfilter_fini()	do { } while(0)
 #define br_netfilter_rtable_init(x)
 #endif

 /* 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,
 					   u16 port_no);
 extern void br_init_port(struct net_bridge_port *p);
 extern void br_become_designated_port(struct net_bridge_port *p);

 /* br_stp_if.c */
 extern void br_stp_enable_bridge(struct net_bridge *br);
 extern void br_stp_disable_bridge(struct net_bridge *br);
 extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
 extern void br_stp_enable_port(struct net_bridge_port *p);
 extern void br_stp_disable_port(struct net_bridge_port *p);
 extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
 extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
 extern void br_stp_set_bridge_priority(struct net_bridge *br,
 				       u16 newprio);
 extern void br_stp_set_port_priority(struct net_bridge_port *p,
 				     u8 newprio);
 extern void br_stp_set_path_cost(struct net_bridge_port *p,
 				 u32 path_cost);
 extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);

 /* br_stp_bpdu.c */
 struct stp_proto;
 extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
 		       struct net_device *dev);

 /* br_stp_timer.c */
 extern void br_stp_timer_init(struct net_bridge *br);
 extern void br_stp_port_timer_init(struct net_bridge_port *p);
 extern unsigned long br_timer_value(const struct timer_list *timer);

 /* br.c */
 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
 extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
 #endif
 extern int (*br_fdb_fillbuf_hook)(struct net_bridge *br,
 				  void *buf,
 				  unsigned long maxnum,
 				  unsigned long skip);

 /* br_netlink.c */
 extern int br_netlink_init(void);
 extern void br_netlink_fini(void);
 extern void br_ifinfo_notify(int event, struct net_bridge_port *port);

 #ifdef CONFIG_SYSFS
 /* br_sysfs_if.c */
 extern const struct sysfs_ops brport_sysfs_ops;
 extern int br_sysfs_addif(struct net_bridge_port *p);
 extern int br_sysfs_renameif(struct net_bridge_port *p);

 /* br_sysfs_br.c */
 extern int br_sysfs_addbr(struct net_device *dev);
 extern void br_sysfs_delbr(struct net_device *dev);

 #else

 #define br_sysfs_addif(p)	(0)
 #define br_sysfs_renameif(p)	(0)
 #define br_sysfs_addbr(dev)	(0)
 #define br_sysfs_delbr(dev)	do { } while(0)
 #endif /* CONFIG_SYSFS */

 extern unsigned int g_br_igmp_snoop_dbg;

 #define BR_SNOOP_DBG(fmt, ...)	do {			\
 	if (g_br_igmp_snoop_dbg)			\
 		if (net_ratelimit())			\
 			printk(fmt, ##__VA_ARGS__);	\
 } while(0)

 extern void br_multicast_mdb_dump(struct net_bridge_mdb_entry *me);

 #endif
	/*
	* Linux ethernet bridge
	*
	* Authors:
	* Lennert Buytenhek <buytenh@gnu.org>
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License
	* as published by the Free Software Foundation; either version
	* 2 of the License, or (at your option) any later version.
	*/

	#ifndef _BR_PRIVATE_H
	#define _BR_PRIVATE_H

	#include <linux/netdevice.h>
	#include <linux/if_bridge.h>
	#include <net/route.h>
	#include "br_public.h"
	#include <qtn/br_types.h>

	#define BR_HOLD_TIME (1*HZ)

	#define BR_PORT_BITS 10
	#define BR_MAX_PORTS (1<<BR_PORT_BITS)

	#define BR_VERSION "2.3"

	/* Path to usermode spanning tree program */
	#define BR_STP_PROG "/sbin/bridge-stp"

	#define BR_AGE_MAX_SEC (60 * 60 * 2)
	#define BR_AGE_MIN_SEC (30 * 60)
	enum
	{
	MCAST_FWD_BLOCK = 0,
	MCAST_FWD_ALLOW = 1,
	};

	struct net_bridge_mcast_reqs
	{
	mac_addr ucast_req_addr;
	unsigned char forward;
	struct list_head list;
	};

	struct net_bridge_subport_req {
	uint8_t src_mac[ETH_ALEN];
	struct net_bridge_subport_req *next;
	};

	struct net_bridge_port_group {
	struct net_bridge_port *port;
	struct net_bridge_port_group *next;
	struct hlist_node mglist;
	struct rcu_head rcu;
	struct timer_list timer;
	struct timer_list query_timer;
	struct br_ip addr;
	u32 queries_sent;
	u32 sub_port;
	struct {
	struct net_bridge_subport_req *head;
	unsigned int count;
	} subport_reqs;
	};

	#define BR_MCAST_SUBPORT_REQ_LIMIT 32

	struct net_bridge_mdb_entry
	{
	struct hlist_node hlist[2];
	struct hlist_node mglist;
	struct net_bridge *br;
	struct net_bridge_port_group *ports;
	struct rcu_head rcu;
	struct timer_list timer;
	struct timer_list query_timer;
	struct br_ip addr;
	u32 queries_sent;
	u32 report_flood_indicator;
	unsigned long report_target_jiffies;
	u32 rx_specific_query;
	};

	struct net_bridge_mdb_htable
	{
	struct hlist_head *mhash;
	struct rcu_head rcu;
	struct net_bridge_mdb_htable *old;
	u32 size;
	u32 max;
	u32 secret;
	u32 ver;
	};

	struct br_input_skb_cb {
	struct net_device *brdev;
	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	int igmp;
	int mrouters_only;
	int ucast_fwd;
	#endif
	};

	#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)

	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
	#define BR_INPUT_SKB_CB_UCAST_FWD(__skb) (BR_INPUT_SKB_CB(__skb)->ucast_fwd)
	#else
	# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
	#define BR_INPUT_SKB_CB_UCAST_FWD(__skb) (0)
	#endif

	#define br_printk(level, br, format, args...) \
	printk(level "%s: " format, (br)->dev->name, ##args)

	#define br_err(__br, format, args...) \
	br_printk(KERN_ERR, __br, format, ##args)
	#define br_warn(__br, format, args...) \
	br_printk(KERN_WARNING, __br, format, ##args)
	#define br_notice(__br, format, args...) \
	br_printk(KERN_NOTICE, __br, format, ##args)
	#define br_info(__br, format, args...) \
	br_printk(KERN_INFO, __br, format, ##args)

	#define br_debug(br, format, args...) \
	pr_debug("%s: " format, (br)->dev->name, ##args)

	extern struct notifier_block br_device_notifier;
	extern const u8 br_group_address[ETH_ALEN];

	/* called under bridge lock */
	static inline int br_is_root_bridge(const struct net_bridge *br)
	{
	return !memcmp(&br->bridge_id, &br->designated_root, 8);
	}

	/* br_device.c */
	extern void br_dev_setup(struct net_device *dev);
	extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
	struct net_device *dev);
	#ifdef CONFIG_NET_POLL_CONTROLLER
	extern void br_netpoll_cleanup(struct net_device *dev);
	extern void br_netpoll_enable(struct net_bridge *br,
	struct net_device *dev);
	extern void br_netpoll_disable(struct net_bridge *br,
	struct net_device *dev);
	#else
	#define br_netpoll_cleanup(br)
	#define br_netpoll_enable(br, dev)
	#define br_netpoll_disable(br, dev)

	#endif

	/* br_fdb.c */
	extern int br_fdb_init(void);
	extern void br_fdb_fini(void);
	extern void br_fdb_flush(struct net_bridge *br);
	extern void br_fdb_changeaddr(struct net_bridge_port *p,
	const unsigned char *newaddr);
	extern void br_fdb_cleanup(unsigned long arg);
	extern void br_handle_fwt_capacity(struct net_bridge *br);
	extern void br_fdb_delete_by_port(struct net_bridge *br,
	const struct net_bridge_port *p, int do_all);
	extern struct net_bridge_fdb_entry __br_fdb_get(struct net_bridge br,
	const unsigned char *addr);
	extern struct net_bridge_fdb_entry br_fdb_get(struct net_bridge br,
	unsigned char *addr);
	extern struct net_bridge_fdb_entry br_fdb_get_ext(struct net_bridge br,
	struct sk_buff *skb,
	unsigned char *addr);
	extern void br_fdb_put(struct net_bridge_fdb_entry *ent);
	extern int br_fdb_test_addr(struct net_device dev, unsigned char addr);
	extern unsigned char br_fdb_get_attached(struct net_bridge br, unsigned char addr);
	extern unsigned char br_fdb_delete_by_sub_port(struct net_bridge *br,
	const struct net_bridge_port *p,
	port_id sub_port);
	extern int br_fdb_fillbuf(struct net_bridge br, void buf,
	unsigned long count, unsigned long off);
	extern int br_fdb_insert(struct net_bridge *br,
	struct net_bridge_port *source,
	const unsigned char *addr);
	extern void br_fdb_update_const(struct net_bridge *br,
	struct net_bridge_port *source,
	const unsigned char *addr, port_id sub_port);
	extern void br_fdb_update(struct net_bridge *br,
	struct net_bridge_port *source,
	const unsigned char *addr, port_id sub_port);
	extern void br_mcast_fdb_update(struct net_bridge br, struct net_bridge_port source,
	const unsigned char mcast_addr, const unsigned char ucast_addr,port_id sub_port,
	int op_join);
	/* br_forward.c */
	extern void br_deliver(const struct net_bridge_port *to,
	struct sk_buff *skb);
	extern int br_dev_queue_push_xmit(struct sk_buff *skb);
	extern void br_forward(const struct net_bridge_port *to,
	struct sk_buff skb, struct sk_buff skb0);
	extern int br_forward_finish(struct sk_buff *skb);
	extern void br_flood_deliver(struct net_bridge br, struct sk_buff skb);
	extern void br_flood_forward(struct net_bridge br, struct sk_buff skb,
	struct sk_buff *skb2);

	/* br_if.c */
	extern void br_port_carrier_check(struct net_bridge_port *p);
	extern int br_add_bridge(struct net net, const char name);
	extern int br_del_bridge(struct net net, const char name);
	extern void br_net_exit(struct net *net);
	extern int br_add_if(struct net_bridge *br,
	struct net_device *dev);
	extern int br_del_if(struct net_bridge *br,
	struct net_device *dev);
	extern int br_min_mtu(const struct net_bridge *br);
	extern void br_features_recompute(struct net_bridge *br);

	/* br_input.c */
	extern int br_handle_frame_finish(struct sk_buff *skb);
	extern struct sk_buff br_handle_frame(struct net_bridge_port p,
	struct sk_buff *skb);

	/* br_ioctl.c */
	extern int br_dev_ioctl(struct net_device dev, struct ifreq rq, int cmd);
	extern int br_ioctl_deviceless_stub(struct net net, unsigned int cmd, void __user arg);

	/* br_multicast.c */
	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	extern int br_multicast_rcv(struct net_bridge *br,
	struct net_bridge_port *port,
	struct sk_buff *skb);
	extern struct net_bridge_mdb_entry br_mdb_get(struct net_bridge br,
	struct sk_buff *skb);
	extern void br_multicast_add_port(struct net_bridge_port *port);
	extern void br_multicast_del_port(struct net_bridge_port *port);
	extern void br_multicast_enable_port(struct net_bridge_port *port);
	extern void br_multicast_disable_port(struct net_bridge_port *port);
	extern void br_multicast_init(struct net_bridge *br);
	extern void br_multicast_open(struct net_bridge *br);
	extern void br_multicast_stop(struct net_bridge *br);
	extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
	struct sk_buff *skb);
	extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
	struct sk_buff skb, struct sk_buff skb2);
	extern int br_multicast_set_router(struct net_bridge *br, unsigned long val);
	extern int br_multicast_set_port_router(struct net_bridge_port *p,
	unsigned long val);
	extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
	extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
	extern void br_mdb_delete_by_sub_port(struct net_bridge br, const struct net_bridge_port port,
	port_id sub_port);
	static inline bool br_multicast_is_router(struct net_bridge *br)
	{
	return br->multicast_router == 2 \|\|
	(br->multicast_router == 1 &&
	timer_pending(&br->multicast_router_timer));
	}
	static inline void br_reset_sub_port_bitmap(uint32_t *sub_port_map, port_id sub_port)
	{
	port_id unmap_sub_port;

	unmap_sub_port = BR_SUBPORT_UNMAP(sub_port);
	sub_port_map[BR_SUBPORT_IDX(unmap_sub_port)] &= ~BR_SUBPORT_BITMAP(unmap_sub_port);
	}

	extern void br_report_flood(struct net_bridge *br,
	struct net_bridge_mdb_entry mp, struct sk_buff skb);
	extern struct net_bridge_mdb_entry br_mdb_get_ext(struct net_bridge br, struct sk_buff *skb);
	extern void br_multicast_copy_to_sub_ports(struct net_bridge *br,
	struct net_bridge_mdb_entry mdst, struct sk_buff skb);
	#else
	static inline int br_multicast_rcv(struct net_bridge *br,
	struct net_bridge_port *port,
	struct sk_buff *skb)
	{
	return 0;
	}

	static inline struct net_bridge_mdb_entry br_mdb_get(struct net_bridge br,
	struct sk_buff *skb)
	{
	return NULL;
	}

	static inline void br_multicast_add_port(struct net_bridge_port *port)
	{
	}

	static inline void br_multicast_del_port(struct net_bridge_port *port)
	{
	}

	static inline void br_multicast_enable_port(struct net_bridge_port *port)
	{
	}

	static inline void br_multicast_disable_port(struct net_bridge_port *port)
	{
	}

	static inline void br_multicast_init(struct net_bridge *br)
	{
	}

	static inline void br_multicast_open(struct net_bridge *br)
	{
	}

	static inline void br_multicast_stop(struct net_bridge *br)
	{
	}

	static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
	struct sk_buff *skb)
	{
	}

	static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
	struct sk_buff *skb,
	struct sk_buff *skb2)
	{
	}

	static inline void br_report_flood(struct net_bridge *br,
	struct net_bridge_mdb_entry mp, struct sk_buff skb)
	{
	}

	static inline bool br_multicast_is_router(struct net_bridge *br)
	{
	return 0;
	}

	static inline void br_reset_sub_port_bitmap(uint32_t *sub_port_map, port_id sub_port)
	{
	}

	static inline struct net_bridge_mdb_entry br_mdb_get_ext(struct net_bridge br,
	struct sk_buff *skb)
	{
	return NULL;
	}
	#endif

	/* br_netfilter.c */
	#ifdef CONFIG_BRIDGE_NETFILTER
	extern int br_netfilter_init(void);
	extern void br_netfilter_fini(void);
	extern void br_netfilter_rtable_init(struct net_bridge *);
	#else
	#define br_netfilter_init() (0)
	#define br_netfilter_fini() do { } while(0)
	#define br_netfilter_rtable_init(x)
	#endif

	/* 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,
	u16 port_no);
	extern void br_init_port(struct net_bridge_port *p);
	extern void br_become_designated_port(struct net_bridge_port *p);

	/* br_stp_if.c */
	extern void br_stp_enable_bridge(struct net_bridge *br);
	extern void br_stp_disable_bridge(struct net_bridge *br);
	extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
	extern void br_stp_enable_port(struct net_bridge_port *p);
	extern void br_stp_disable_port(struct net_bridge_port *p);
	extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
	extern void br_stp_change_bridge_id(struct net_bridge br, const unsigned char a);
	extern void br_stp_set_bridge_priority(struct net_bridge *br,
	u16 newprio);
	extern void br_stp_set_port_priority(struct net_bridge_port *p,
	u8 newprio);
	extern void br_stp_set_path_cost(struct net_bridge_port *p,
	u32 path_cost);
	extern ssize_t br_show_bridge_id(char buf, const struct bridge_id id);

	/* br_stp_bpdu.c */
	struct stp_proto;
	extern void br_stp_rcv(const struct stp_proto proto, struct sk_buff skb,
	struct net_device *dev);

	/* br_stp_timer.c */
	extern void br_stp_timer_init(struct net_bridge *br);
	extern void br_stp_port_timer_init(struct net_bridge_port *p);
	extern unsigned long br_timer_value(const struct timer_list *timer);

	/* br.c */
	#if defined(CONFIG_ATM_LANE) \|\| defined(CONFIG_ATM_LANE_MODULE)
	extern int (br_fdb_test_addr_hook)(struct net_device dev, unsigned char *addr);
	#endif
	extern int (br_fdb_fillbuf_hook)(struct net_bridge br,
	void *buf,
	unsigned long maxnum,
	unsigned long skip);

	/* br_netlink.c */
	extern int br_netlink_init(void);
	extern void br_netlink_fini(void);
	extern void br_ifinfo_notify(int event, struct net_bridge_port *port);

	#ifdef CONFIG_SYSFS
	/* br_sysfs_if.c */
	extern const struct sysfs_ops brport_sysfs_ops;
	extern int br_sysfs_addif(struct net_bridge_port *p);
	extern int br_sysfs_renameif(struct net_bridge_port *p);

	/* br_sysfs_br.c */
	extern int br_sysfs_addbr(struct net_device *dev);
	extern void br_sysfs_delbr(struct net_device *dev);

	#else

	#define br_sysfs_addif(p) (0)
	#define br_sysfs_renameif(p) (0)
	#define br_sysfs_addbr(dev) (0)
	#define br_sysfs_delbr(dev) do { } while(0)
	#endif /* CONFIG_SYSFS */

	extern unsigned int g_br_igmp_snoop_dbg;

	#define BR_SNOOP_DBG(fmt, ...) do { \
	if (g_br_igmp_snoop_dbg) \
	if (net_ratelimit()) \
	printk(fmt, ##__VA_ARGS__); \
	} while(0)

	extern void br_multicast_mdb_dump(struct net_bridge_mdb_entry *me);

	#endif