| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | /*
 | 
					
						
							|  |  |  |  *	Linux ethernet bridge | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  *	Authors: | 
					
						
							|  |  |  |  *	Lennert Buytenhek		<buytenh@gnu.org> | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  *	$Id: br_private.h,v 1.7 2001/12/24 00:59:55 davem Exp $ | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  *	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>
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define BR_HASH_BITS 8
 | 
					
						
							|  |  |  | #define BR_HASH_SIZE (1 << BR_HASH_BITS)
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define BR_HOLD_TIME (1*HZ)
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define BR_PORT_BITS	10
 | 
					
						
							|  |  |  | #define BR_MAX_PORTS	(1<<BR_PORT_BITS)
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2007-03-21 14:22:44 -07:00
										 |  |  | #define BR_VERSION	"2.3"
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* Path to usermode spanning tree program */ | 
					
						
							|  |  |  | #define BR_STP_PROG	"/sbin/bridge-stp"
 | 
					
						
							| 
									
										
										
										
											2005-12-21 19:01:30 -08:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | typedef struct bridge_id bridge_id; | 
					
						
							|  |  |  | typedef struct mac_addr mac_addr; | 
					
						
							|  |  |  | typedef __u16 port_id; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct bridge_id | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	unsigned char	prio[2]; | 
					
						
							|  |  |  | 	unsigned char	addr[6]; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct mac_addr | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	unsigned char	addr[6]; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct net_bridge_fdb_entry | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	struct hlist_node		hlist; | 
					
						
							|  |  |  | 	struct net_bridge_port		*dst; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	struct rcu_head			rcu; | 
					
						
							|  |  |  | 	atomic_t			use_count; | 
					
						
							|  |  |  | 	unsigned long			ageing_timer; | 
					
						
							|  |  |  | 	mac_addr			addr; | 
					
						
							|  |  |  | 	unsigned char			is_local; | 
					
						
							|  |  |  | 	unsigned char			is_static; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct net_bridge_port | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	struct net_bridge		*br; | 
					
						
							|  |  |  | 	struct net_device		*dev; | 
					
						
							|  |  |  | 	struct list_head		list; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* STP */ | 
					
						
							|  |  |  | 	u8				priority; | 
					
						
							|  |  |  | 	u8				state; | 
					
						
							|  |  |  | 	u16				port_no; | 
					
						
							|  |  |  | 	unsigned char			topology_change_ack; | 
					
						
							|  |  |  | 	unsigned char			config_pending; | 
					
						
							|  |  |  | 	port_id				port_id; | 
					
						
							|  |  |  | 	port_id				designated_port; | 
					
						
							|  |  |  | 	bridge_id			designated_root; | 
					
						
							|  |  |  | 	bridge_id			designated_bridge; | 
					
						
							|  |  |  | 	u32				path_cost; | 
					
						
							|  |  |  | 	u32				designated_cost; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	struct timer_list		forward_delay_timer; | 
					
						
							|  |  |  | 	struct timer_list		hold_timer; | 
					
						
							|  |  |  | 	struct timer_list		message_age_timer; | 
					
						
							|  |  |  | 	struct kobject			kobj; | 
					
						
							|  |  |  | 	struct rcu_head			rcu; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct net_bridge | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	spinlock_t			lock; | 
					
						
							|  |  |  | 	struct list_head		port_list; | 
					
						
							|  |  |  | 	struct net_device		*dev; | 
					
						
							|  |  |  | 	struct net_device_stats		statistics; | 
					
						
							|  |  |  | 	spinlock_t			hash_lock; | 
					
						
							|  |  |  | 	struct hlist_head		hash[BR_HASH_SIZE]; | 
					
						
							|  |  |  | 	struct list_head		age_list; | 
					
						
							| 
									
										
										
										
											2005-12-21 19:00:58 -08:00
										 |  |  | 	unsigned long			feature_mask; | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | 	/* STP */ | 
					
						
							|  |  |  | 	bridge_id			designated_root; | 
					
						
							|  |  |  | 	bridge_id			bridge_id; | 
					
						
							|  |  |  | 	u32				root_path_cost; | 
					
						
							|  |  |  | 	unsigned long			max_age; | 
					
						
							|  |  |  | 	unsigned long			hello_time; | 
					
						
							|  |  |  | 	unsigned long			forward_delay; | 
					
						
							|  |  |  | 	unsigned long			bridge_max_age; | 
					
						
							|  |  |  | 	unsigned long			ageing_time; | 
					
						
							|  |  |  | 	unsigned long			bridge_hello_time; | 
					
						
							|  |  |  | 	unsigned long			bridge_forward_delay; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2006-03-20 22:59:21 -08:00
										 |  |  | 	u8				group_addr[ETH_ALEN]; | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 	u16				root_port; | 
					
						
							| 
									
										
										
										
											2007-03-21 14:22:44 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | 	enum { | 
					
						
							|  |  |  | 		BR_NO_STP, 		/* no spanning tree */ | 
					
						
							|  |  |  | 		BR_KERNEL_STP,		/* old STP in kernel */ | 
					
						
							|  |  |  | 		BR_USER_STP,		/* new RSTP in userspace */ | 
					
						
							|  |  |  | 	} stp_enabled; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 	unsigned char			topology_change; | 
					
						
							|  |  |  | 	unsigned char			topology_change_detected; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	struct timer_list		hello_timer; | 
					
						
							|  |  |  | 	struct timer_list		tcn_timer; | 
					
						
							|  |  |  | 	struct timer_list		topology_change_timer; | 
					
						
							|  |  |  | 	struct timer_list		gc_timer; | 
					
						
							| 
									
										
										
										
											2007-12-17 15:54:39 -04:00
										 |  |  | 	struct kobject			*ifobj; | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | extern struct notifier_block br_device_notifier; | 
					
						
							| 
									
										
										
										
											2006-03-20 22:59:21 -08:00
										 |  |  | extern const u8 br_group_address[ETH_ALEN]; | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* 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 int br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* br_fdb.c */ | 
					
						
							| 
									
										
										
										
											2007-04-07 18:57:07 +09:00
										 |  |  | extern int br_fdb_init(void); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | extern void br_fdb_fini(void); | 
					
						
							| 
									
										
										
										
											2007-04-09 12:57:54 -07:00
										 |  |  | extern void br_fdb_flush(struct net_bridge *br); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 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_fdb_delete_by_port(struct net_bridge *br, | 
					
						
							| 
									
										
										
										
											2006-10-12 14:45:38 -07:00
										 |  |  | 				  const struct net_bridge_port *p, int do_all); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 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 void br_fdb_put(struct net_bridge_fdb_entry *ent); | 
					
						
							| 
									
										
										
										
											2007-02-09 23:24:35 +09:00
										 |  |  | extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 			  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(struct net_bridge *br, | 
					
						
							|  |  |  | 			  struct net_bridge_port *source, | 
					
						
							|  |  |  | 			  const unsigned char *addr); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* 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); | 
					
						
							|  |  |  | extern int br_forward_finish(struct sk_buff *skb); | 
					
						
							| 
									
										
										
										
											2007-09-16 16:20:48 -07:00
										 |  |  | 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); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* br_if.c */ | 
					
						
							| 
									
										
										
										
											2007-02-22 01:10:18 -08:00
										 |  |  | extern void br_port_carrier_check(struct net_bridge_port *p); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | extern int br_add_bridge(const char *name); | 
					
						
							|  |  |  | extern int br_del_bridge(const char *name); | 
					
						
							|  |  |  | extern void br_cleanup_bridges(void); | 
					
						
							|  |  |  | 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); | 
					
						
							| 
									
										
										
										
											2005-05-29 14:15:17 -07:00
										 |  |  | extern void br_features_recompute(struct net_bridge *br); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* br_input.c */ | 
					
						
							|  |  |  | extern int br_handle_frame_finish(struct sk_buff *skb); | 
					
						
							| 
									
										
										
										
											2007-03-21 13:38:47 -07:00
										 |  |  | extern struct sk_buff *br_handle_frame(struct net_bridge_port *p, | 
					
						
							|  |  |  | 				       struct sk_buff *skb); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* br_ioctl.c */ | 
					
						
							|  |  |  | extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | 
					
						
							| 
									
										
										
										
											2007-09-17 11:56:21 -07:00
										 |  |  | extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* br_netfilter.c */ | 
					
						
							| 
									
										
										
										
											2006-05-25 15:59:33 -07:00
										 |  |  | #ifdef CONFIG_BRIDGE_NETFILTER
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | extern int br_netfilter_init(void); | 
					
						
							|  |  |  | extern void br_netfilter_fini(void); | 
					
						
							| 
									
										
										
										
											2006-05-25 15:59:33 -07:00
										 |  |  | #else
 | 
					
						
							|  |  |  | #define br_netfilter_init()	(0)
 | 
					
						
							|  |  |  | #define br_netfilter_fini()	do { } while(0)
 | 
					
						
							|  |  |  | #endif
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* 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, | 
					
						
							| 
									
										
										
										
											2007-02-09 23:24:35 +09:00
										 |  |  | 					   u16 port_no); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 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); | 
					
						
							| 
									
										
										
										
											2007-03-21 14:22:44 -07:00
										 |  |  | extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 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); | 
					
						
							| 
									
										
										
										
											2005-12-21 18:51:49 -08:00
										 |  |  | extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 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 */ | 
					
						
							| 
									
										
										
										
											2006-03-20 22:59:06 -08:00
										 |  |  | extern int br_stp_rcv(struct sk_buff *skb, struct net_device *dev, | 
					
						
							|  |  |  | 		      struct packet_type *pt, struct net_device *orig_dev); | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | /* 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 */ | 
					
						
							|  |  |  | extern struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br, | 
					
						
							|  |  |  | 						       unsigned char *addr); | 
					
						
							|  |  |  | extern void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2006-05-25 16:00:12 -07:00
										 |  |  | /* br_netlink.c */ | 
					
						
							| 
									
										
										
										
											2007-03-22 11:59:03 -07:00
										 |  |  | extern int br_netlink_init(void); | 
					
						
							| 
									
										
										
										
											2006-05-25 16:00:12 -07:00
										 |  |  | extern void br_netlink_fini(void); | 
					
						
							|  |  |  | extern void br_ifinfo_notify(int event, struct net_bridge_port *port); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | #ifdef CONFIG_SYSFS
 | 
					
						
							|  |  |  | /* br_sysfs_if.c */ | 
					
						
							| 
									
										
										
										
											2006-02-09 17:10:12 -08:00
										 |  |  | extern struct sysfs_ops brport_sysfs_ops; | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | extern int br_sysfs_addif(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_addbr(dev)	(0)
 | 
					
						
							|  |  |  | #define br_sysfs_delbr(dev)	do { } while(0)
 | 
					
						
							|  |  |  | #endif /* CONFIG_SYSFS */
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #endif
 |