[linux-2.6-block.git] / net / bridge / br_private.h

/*
 *	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>

#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)

#define BR_VERSION	"2.3"

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

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 br_ip
{
	union {
		__be32	ip4;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
		struct in6_addr ip6;
#endif
	} u;
	__be16		proto;
};

struct net_bridge_fdb_entry
{
	struct hlist_node		hlist;
	struct net_bridge_port		*dst;

	struct rcu_head			rcu;
	unsigned long			ageing_timer;
	mac_addr			addr;
	unsigned char			is_local;
	unsigned char			is_static;
};

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;
};

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;
};

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 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;

	unsigned long 			flags;
#define BR_HAIRPIN_MODE		0x00000001

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	u32				multicast_startup_queries_sent;
	unsigned char			multicast_router;
	struct timer_list		multicast_router_timer;
	struct timer_list		multicast_query_timer;
	struct hlist_head		mglist;
	struct hlist_node		rlist;
#endif

#ifdef CONFIG_SYSFS
	char				sysfs_name[IFNAMSIZ];
#endif
};

struct br_cpu_netstats {
	unsigned long	rx_packets;
	unsigned long	rx_bytes;
	unsigned long	tx_packets;
	unsigned long	tx_bytes;
};

struct net_bridge
{
	spinlock_t			lock;
	struct list_head		port_list;
	struct net_device		*dev;

	struct br_cpu_netstats __percpu *stats;
	spinlock_t			hash_lock;
	struct hlist_head		hash[BR_HASH_SIZE];
	unsigned long			feature_mask;
#ifdef CONFIG_BRIDGE_NETFILTER
	struct rtable 			fake_rtable;
#endif
	unsigned long			flags;
#define BR_SET_MAC_ADDR		0x00000001

	/* 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;

	u8				group_addr[ETH_ALEN];
	u16				root_port;

	enum {
		BR_NO_STP, 		/* no spanning tree */
		BR_KERNEL_STP,		/* old STP in kernel */
		BR_USER_STP,		/* new RSTP in userspace */
	} stp_enabled;

	unsigned char			topology_change;
	unsigned char			topology_change_detected;

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	unsigned char			multicast_router;

	u8				multicast_disabled:1;

	u32				hash_elasticity;
	u32				hash_max;

	u32				multicast_last_member_count;
	u32				multicast_startup_queries_sent;
	u32				multicast_startup_query_count;

	unsigned long			multicast_last_member_interval;
	unsigned long			multicast_membership_interval;
	unsigned long			multicast_querier_interval;
	unsigned long			multicast_query_interval;
	unsigned long			multicast_query_response_interval;
	unsigned long			multicast_startup_query_interval;

	spinlock_t			multicast_lock;
	struct net_bridge_mdb_htable	*mdb;
	struct hlist_head		router_list;
	struct hlist_head		mglist;

	struct timer_list		multicast_router_timer;
	struct timer_list		multicast_querier_timer;
	struct timer_list		multicast_query_timer;
#endif

	struct timer_list		hello_timer;
	struct timer_list		tcn_timer;
	struct timer_list		topology_change_timer;
	struct timer_list		gc_timer;
	struct kobject			*ifobj;
};

struct br_input_skb_cb {
	struct net_device *brdev;
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	int igmp;
	int mrouters_only;
#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)
#else
# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__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_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 int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
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(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, 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 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);

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

/* 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 */

#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Linux ethernet bridge
	3	*
	4	* Authors:
	5	* Lennert Buytenhek <buytenh@gnu.org>
	6	*
1da177e4 LT	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License
	9	* as published by the Free Software Foundation; either version
	10	* 2 of the License, or (at your option) any later version.
	11	*/
	12
	13	#ifndef _BR_PRIVATE_H
	14	#define _BR_PRIVATE_H
	15
	16	#include <linux/netdevice.h>
1da177e4	17	#include <linux/if_bridge.h>
4adf0af6	18	#include <net/route.h>
1da177e4 LT	19
	20	#define BR_HASH_BITS 8
	21	#define BR_HASH_SIZE (1 << BR_HASH_BITS)
	22
	23	#define BR_HOLD_TIME (1*HZ)
	24
	25	#define BR_PORT_BITS 10
	26	#define BR_MAX_PORTS (1<<BR_PORT_BITS)
	27
9cde0708 SH	28	#define BR_VERSION "2.3"
	29
	30	/* Path to usermode spanning tree program */
	31	#define BR_STP_PROG "/sbin/bridge-stp"
8cbb512e	32
1da177e4 LT	33	typedef struct bridge_id bridge_id;
	34	typedef struct mac_addr mac_addr;
	35	typedef __u16 port_id;
	36
	37	struct bridge_id
	38	{
	39	unsigned char prio[2];
	40	unsigned char addr[6];
	41	};
	42
	43	struct mac_addr
	44	{
	45	unsigned char addr[6];
	46	};
	47
8ef2a9a5 YH	48	struct br_ip
	49	{
	50	union {
	51	__be32 ip4;
08b202b6 YH	52	#if defined(CONFIG_IPV6) \|\| defined(CONFIG_IPV6_MODULE)
	53	struct in6_addr ip6;
	54	#endif
8ef2a9a5 YH	55	} u;
	56	__be16 proto;
	57	};
	58
1da177e4 LT	59	struct net_bridge_fdb_entry
	60	{
	61	struct hlist_node hlist;
	62	struct net_bridge_port *dst;
	63
	64	struct rcu_head rcu;
1da177e4 LT	65	unsigned long ageing_timer;
	66	mac_addr addr;
	67	unsigned char is_local;
	68	unsigned char is_static;
	69	};
	70
eb1d1641 HX	71	struct net_bridge_port_group {
	72	struct net_bridge_port *port;
	73	struct net_bridge_port_group *next;
	74	struct hlist_node mglist;
	75	struct rcu_head rcu;
	76	struct timer_list timer;
	77	struct timer_list query_timer;
8ef2a9a5	78	struct br_ip addr;
eb1d1641 HX	79	u32 queries_sent;
	80	};
	81
	82	struct net_bridge_mdb_entry
	83	{
	84	struct hlist_node hlist[2];
	85	struct hlist_node mglist;
	86	struct net_bridge *br;
	87	struct net_bridge_port_group *ports;
	88	struct rcu_head rcu;
	89	struct timer_list timer;
	90	struct timer_list query_timer;
8ef2a9a5	91	struct br_ip addr;
eb1d1641 HX	92	u32 queries_sent;
	93	};
	94
	95	struct net_bridge_mdb_htable
	96	{
	97	struct hlist_head *mhash;
	98	struct rcu_head rcu;
	99	struct net_bridge_mdb_htable *old;
	100	u32 size;
	101	u32 max;
	102	u32 secret;
	103	u32 ver;
	104	};
	105
1da177e4 LT	106	struct net_bridge_port
	107	{
	108	struct net_bridge *br;
	109	struct net_device *dev;
	110	struct list_head list;
	111
	112	/* STP */
	113	u8 priority;
	114	u8 state;
	115	u16 port_no;
	116	unsigned char topology_change_ack;
	117	unsigned char config_pending;
	118	port_id port_id;
	119	port_id designated_port;
	120	bridge_id designated_root;
	121	bridge_id designated_bridge;
	122	u32 path_cost;
	123	u32 designated_cost;
	124
	125	struct timer_list forward_delay_timer;
	126	struct timer_list hold_timer;
	127	struct timer_list message_age_timer;
	128	struct kobject kobj;
	129	struct rcu_head rcu;
3982d3d2 FA	130
	131	unsigned long flags;
	132	#define BR_HAIRPIN_MODE 0x00000001
eb1d1641 HX	133
	134	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	135	u32 multicast_startup_queries_sent;
	136	unsigned char multicast_router;
	137	struct timer_list multicast_router_timer;
	138	struct timer_list multicast_query_timer;
	139	struct hlist_head mglist;
	140	struct hlist_node rlist;
	141	#endif
e0f43752 SA	142
	143	#ifdef CONFIG_SYSFS
	144	char sysfs_name[IFNAMSIZ];
	145	#endif
1da177e4 LT	146	};
1da177e4 LT	147
0eae88f3 ED	148	struct br_cpu_netstats {
	149	unsigned long rx_packets;
	150	unsigned long rx_bytes;
	151	unsigned long tx_packets;
	152	unsigned long tx_bytes;
	153	};
	154
1da177e4 LT	155	struct net_bridge
	156	{
	157	spinlock_t lock;
	158	struct list_head port_list;
	159	struct net_device *dev;
14bb4789	160
0eae88f3	161	struct br_cpu_netstats __percpu *stats;
1da177e4 LT	162	spinlock_t hash_lock;
1da177e4 LT	163	struct hlist_head hash[BR_HASH_SIZE];
edb5e46f	164	unsigned long feature_mask;
4adf0af6 SW	165	#ifdef CONFIG_BRIDGE_NETFILTER
	166	struct rtable fake_rtable;
	167	#endif
92c0574f SH	168	unsigned long flags;
92c0574f SH	169	#define BR_SET_MAC_ADDR 0x00000001
1da177e4 LT	170
	171	/* STP */
	172	bridge_id designated_root;
	173	bridge_id bridge_id;
	174	u32 root_path_cost;
	175	unsigned long max_age;
	176	unsigned long hello_time;
	177	unsigned long forward_delay;
	178	unsigned long bridge_max_age;
	179	unsigned long ageing_time;
	180	unsigned long bridge_hello_time;
	181	unsigned long bridge_forward_delay;
	182
fda93d92	183	u8 group_addr[ETH_ALEN];
1da177e4	184	u16 root_port;
9cde0708 SH	185
	186	enum {
	187	BR_NO_STP, /* no spanning tree */
	188	BR_KERNEL_STP, /* old STP in kernel */
	189	BR_USER_STP, /* new RSTP in userspace */
	190	} stp_enabled;
	191
1da177e4 LT	192	unsigned char topology_change;
	193	unsigned char topology_change_detected;
	194
eb1d1641 HX	195	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	196	unsigned char multicast_router;
	197
	198	u8 multicast_disabled:1;
	199
	200	u32 hash_elasticity;
	201	u32 hash_max;
	202
	203	u32 multicast_last_member_count;
	204	u32 multicast_startup_queries_sent;
	205	u32 multicast_startup_query_count;
	206
	207	unsigned long multicast_last_member_interval;
	208	unsigned long multicast_membership_interval;
	209	unsigned long multicast_querier_interval;
	210	unsigned long multicast_query_interval;
	211	unsigned long multicast_query_response_interval;
	212	unsigned long multicast_startup_query_interval;
	213
	214	spinlock_t multicast_lock;
	215	struct net_bridge_mdb_htable *mdb;
	216	struct hlist_head router_list;
	217	struct hlist_head mglist;
	218
	219	struct timer_list multicast_router_timer;
	220	struct timer_list multicast_querier_timer;
	221	struct timer_list multicast_query_timer;
	222	#endif
	223
1da177e4 LT	224	struct timer_list hello_timer;
	225	struct timer_list tcn_timer;
	226	struct timer_list topology_change_timer;
	227	struct timer_list gc_timer;
43b98c4a	228	struct kobject *ifobj;
1da177e4 LT	229	};
1da177e4 LT	230
68b7c895 HX	231	struct br_input_skb_cb {
68b7c895 HX	232	struct net_device *brdev;
32dec5dd	233	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
eb1d1641 HX	234	int igmp;
eb1d1641 HX	235	int mrouters_only;
32dec5dd	236	#endif
68b7c895 HX	237	};
	238
	239	#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
	240
32dec5dd YH	241	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	242	# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
	243	#else
	244	# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
	245	#endif
	246
28a16c97	247	#define br_printk(level, br, format, args...) \
	248	printk(level "%s: " format, (br)->dev->name, ##args)
	249
	250	#define br_err(__br, format, args...) \
	251	br_printk(KERN_ERR, __br, format, ##args)
	252	#define br_warn(__br, format, args...) \
	253	br_printk(KERN_WARNING, __br, format, ##args)
	254	#define br_notice(__br, format, args...) \
	255	br_printk(KERN_NOTICE, __br, format, ##args)
	256	#define br_info(__br, format, args...) \
	257	br_printk(KERN_INFO, __br, format, ##args)
	258
	259	#define br_debug(br, format, args...) \
	260	pr_debug("%s: " format, (br)->dev->name, ##args)
	261
1da177e4	262	extern struct notifier_block br_device_notifier;
fda93d92	263	extern const u8 br_group_address[ETH_ALEN];
1da177e4 LT	264
	265	/* called under bridge lock */
	266	static inline int br_is_root_bridge(const struct net_bridge *br)
	267	{
	268	return !memcmp(&br->bridge_id, &br->designated_root, 8);
	269	}
	270
1da177e4 LT	271	/* br_device.c */
1da177e4 LT	272	extern void br_dev_setup(struct net_device *dev);
6fef4c0c SH	273	extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
6fef4c0c SH	274	struct net_device *dev);
cfb478da	275	#ifdef CONFIG_NET_POLL_CONTROLLER
	276	extern void br_netpoll_cleanup(struct net_device *dev);
	277	extern void br_netpoll_enable(struct net_bridge *br,
	278	struct net_device *dev);
	279	extern void br_netpoll_disable(struct net_bridge *br,
	280	struct net_device *dev);
	281	#else
	282	#define br_netpoll_cleanup(br)
	283	#define br_netpoll_enable(br, dev)
	284	#define br_netpoll_disable(br, dev)
	285
	286	#endif
1da177e4 LT	287
1da177e4 LT	288	/* br_fdb.c */
87a596e0	289	extern int br_fdb_init(void);
1da177e4	290	extern void br_fdb_fini(void);
9cf63747	291	extern void br_fdb_flush(struct net_bridge *br);
1da177e4 LT	292	extern void br_fdb_changeaddr(struct net_bridge_port *p,
	293	const unsigned char *newaddr);
	294	extern void br_fdb_cleanup(unsigned long arg);
	295	extern void br_fdb_delete_by_port(struct net_bridge *br,
1a620698	296	const struct net_bridge_port *p, int do_all);
1da177e4 LT	297	extern struct net_bridge_fdb_entry __br_fdb_get(struct net_bridge br,
1da177e4 LT	298	const unsigned char *addr);
da678292	299	extern int br_fdb_test_addr(struct net_device dev, unsigned char addr);
9d6f229f	300	extern int br_fdb_fillbuf(struct net_bridge br, void buf,
1da177e4 LT	301	unsigned long count, unsigned long off);
	302	extern int br_fdb_insert(struct net_bridge *br,
	303	struct net_bridge_port *source,
	304	const unsigned char *addr);
	305	extern void br_fdb_update(struct net_bridge *br,
	306	struct net_bridge_port *source,
	307	const unsigned char *addr);
	308
	309	/* br_forward.c */
	310	extern void br_deliver(const struct net_bridge_port *to,
	311	struct sk_buff *skb);
	312	extern int br_dev_queue_push_xmit(struct sk_buff *skb);
	313	extern void br_forward(const struct net_bridge_port *to,
7f7708f0	314	struct sk_buff skb, struct sk_buff skb0);
1da177e4	315	extern int br_forward_finish(struct sk_buff *skb);
e081e1e3	316	extern void br_flood_deliver(struct net_bridge br, struct sk_buff skb);
b33084be HX	317	extern void br_flood_forward(struct net_bridge br, struct sk_buff skb,
b33084be HX	318	struct sk_buff *skb2);
1da177e4 LT	319
1da177e4 LT	320	/* br_if.c */
269def7c	321	extern void br_port_carrier_check(struct net_bridge_port *p);
4aa678ba AD	322	extern int br_add_bridge(struct net net, const char name);
4aa678ba AD	323	extern int br_del_bridge(struct net net, const char name);
712d6954	324	extern void br_net_exit(struct net *net);
1da177e4 LT	325	extern int br_add_if(struct net_bridge *br,
	326	struct net_device *dev);
	327	extern int br_del_if(struct net_bridge *br,
	328	struct net_device *dev);
	329	extern int br_min_mtu(const struct net_bridge *br);
81d35307	330	extern void br_features_recompute(struct net_bridge *br);
1da177e4 LT	331
	332	/* br_input.c */
	333	extern int br_handle_frame_finish(struct sk_buff *skb);
ab95bfe0	334	extern struct sk_buff br_handle_frame(struct sk_buff skb);
1da177e4 LT	335
	336	/* br_ioctl.c */
	337	extern int br_dev_ioctl(struct net_device dev, struct ifreq rq, int cmd);
881d966b	338	extern int br_ioctl_deviceless_stub(struct net net, unsigned int cmd, void __user arg);
1da177e4	339
eb1d1641 HX	340	/* br_multicast.c */
	341	#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	342	extern int br_multicast_rcv(struct net_bridge *br,
	343	struct net_bridge_port *port,
	344	struct sk_buff *skb);
	345	extern struct net_bridge_mdb_entry br_mdb_get(struct net_bridge br,
	346	struct sk_buff *skb);
	347	extern void br_multicast_add_port(struct net_bridge_port *port);
	348	extern void br_multicast_del_port(struct net_bridge_port *port);
	349	extern void br_multicast_enable_port(struct net_bridge_port *port);
	350	extern void br_multicast_disable_port(struct net_bridge_port *port);
	351	extern void br_multicast_init(struct net_bridge *br);
	352	extern void br_multicast_open(struct net_bridge *br);
	353	extern void br_multicast_stop(struct net_bridge *br);
5cb5e947 HX	354	extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
	355	struct sk_buff *skb);
	356	extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
	357	struct sk_buff skb, struct sk_buff skb2);
0909e117 HX	358	extern int br_multicast_set_router(struct net_bridge *br, unsigned long val);
	359	extern int br_multicast_set_port_router(struct net_bridge_port *p,
	360	unsigned long val);
561f1103	361	extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
b195167f	362	extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
85b35269 SS	363
	364	static inline bool br_multicast_is_router(struct net_bridge *br)
	365	{
	366	return br->multicast_router == 2 \|\|
	367	(br->multicast_router == 1 &&
	368	timer_pending(&br->multicast_router_timer));
	369	}
eb1d1641 HX	370	#else
	371	static inline int br_multicast_rcv(struct net_bridge *br,
	372	struct net_bridge_port *port,
	373	struct sk_buff *skb)
	374	{
	375	return 0;
	376	}
	377
	378	static inline struct net_bridge_mdb_entry br_mdb_get(struct net_bridge br,
	379	struct sk_buff *skb)
	380	{
	381	return NULL;
	382	}
	383
	384	static inline void br_multicast_add_port(struct net_bridge_port *port)
	385	{
	386	}
	387
	388	static inline void br_multicast_del_port(struct net_bridge_port *port)
	389	{
	390	}
	391
	392	static inline void br_multicast_enable_port(struct net_bridge_port *port)
	393	{
	394	}
	395
	396	static inline void br_multicast_disable_port(struct net_bridge_port *port)
	397	{
	398	}
	399
	400	static inline void br_multicast_init(struct net_bridge *br)
	401	{
	402	}
	403
	404	static inline void br_multicast_open(struct net_bridge *br)
	405	{
	406	}
	407
	408	static inline void br_multicast_stop(struct net_bridge *br)
	409	{
	410	}
5cb5e947 HX	411
	412	static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
	413	struct sk_buff *skb)
	414	{
	415	}
	416
	417	static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
	418	struct sk_buff *skb,
	419	struct sk_buff *skb2)
	420	{
	421	}
eb1d1641 HX	422	static inline bool br_multicast_is_router(struct net_bridge *br)
eb1d1641 HX	423	{
85b35269	424	return 0;
eb1d1641	425	}
85b35269	426	#endif
eb1d1641	427
1da177e4	428	/* br_netfilter.c */
c0909713	429	#ifdef CONFIG_BRIDGE_NETFILTER
1da177e4 LT	430	extern int br_netfilter_init(void);
1da177e4 LT	431	extern void br_netfilter_fini(void);
4adf0af6	432	extern void br_netfilter_rtable_init(struct net_bridge *);
c0909713 SH	433	#else
	434	#define br_netfilter_init() (0)
	435	#define br_netfilter_fini() do { } while(0)
4adf0af6	436	#define br_netfilter_rtable_init(x)
c0909713	437	#endif
1da177e4 LT	438
	439	/* br_stp.c */
	440	extern void br_log_state(const struct net_bridge_port *p);
	441	extern struct net_bridge_port br_get_port(struct net_bridge br,
9d6f229f	442	u16 port_no);
1da177e4 LT	443	extern void br_init_port(struct net_bridge_port *p);
	444	extern void br_become_designated_port(struct net_bridge_port *p);
	445
	446	/* br_stp_if.c */
	447	extern void br_stp_enable_bridge(struct net_bridge *br);
	448	extern void br_stp_disable_bridge(struct net_bridge *br);
9cde0708	449	extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
1da177e4 LT	450	extern void br_stp_enable_port(struct net_bridge_port *p);
	451	extern void br_stp_disable_port(struct net_bridge_port *p);
	452	extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
4505a3ef	453	extern void br_stp_change_bridge_id(struct net_bridge br, const unsigned char a);
1da177e4 LT	454	extern void br_stp_set_bridge_priority(struct net_bridge *br,
	455	u16 newprio);
	456	extern void br_stp_set_port_priority(struct net_bridge_port *p,
	457	u8 newprio);
	458	extern void br_stp_set_path_cost(struct net_bridge_port *p,
	459	u32 path_cost);
	460	extern ssize_t br_show_bridge_id(char buf, const struct bridge_id id);
	461
	462	/* br_stp_bpdu.c */
7c85fbf0 PM	463	struct stp_proto;
	464	extern void br_stp_rcv(const struct stp_proto proto, struct sk_buff skb,
	465	struct net_device *dev);
1da177e4 LT	466
	467	/* br_stp_timer.c */
	468	extern void br_stp_timer_init(struct net_bridge *br);
	469	extern void br_stp_port_timer_init(struct net_bridge_port *p);
	470	extern unsigned long br_timer_value(const struct timer_list *timer);
	471
	472	/* br.c */
da678292 MM	473	#if defined(CONFIG_ATM_LANE) \|\| defined(CONFIG_ATM_LANE_MODULE)
	474	extern int (br_fdb_test_addr_hook)(struct net_device dev, unsigned char *addr);
	475	#endif
1da177e4	476
11dc1f36	477	/* br_netlink.c */
32fe21c0	478	extern int br_netlink_init(void);
11dc1f36 SH	479	extern void br_netlink_fini(void);
	480	extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
	481
1da177e4 LT	482	#ifdef CONFIG_SYSFS
1da177e4 LT	483	/* br_sysfs_if.c */
52cf25d0	484	extern const struct sysfs_ops brport_sysfs_ops;
1da177e4	485	extern int br_sysfs_addif(struct net_bridge_port *p);
e0f43752	486	extern int br_sysfs_renameif(struct net_bridge_port *p);
1da177e4 LT	487
	488	/* br_sysfs_br.c */
	489	extern int br_sysfs_addbr(struct net_device *dev);
	490	extern void br_sysfs_delbr(struct net_device *dev);
	491
	492	#else
	493
	494	#define br_sysfs_addif(p) (0)
e0f43752	495	#define br_sysfs_renameif(p) (0)
1da177e4 LT	496	#define br_sysfs_addbr(dev) (0)
	497	#define br_sysfs_delbr(dev) do { } while(0)
	498	#endif /* CONFIG_SYSFS */
	499
	500	#endif