[deliverable/linux.git] / include / linux / if_bridge.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 _LINUX_IF_BRIDGE_H
#define _LINUX_IF_BRIDGE_H


#include <linux/netdevice.h>
#include <uapi/linux/if_bridge.h>
#include <linux/bitops.h>

struct br_ip {
	union {
		__be32	ip4;
#if IS_ENABLED(CONFIG_IPV6)
		struct in6_addr ip6;
#endif
	} u;
	__be16		proto;
	__u16           vid;
};

struct br_ip_list {
	struct list_head list;
	struct br_ip addr;
};

#define BR_HAIRPIN_MODE		BIT(0)
#define BR_BPDU_GUARD		BIT(1)
#define BR_ROOT_BLOCK		BIT(2)
#define BR_MULTICAST_FAST_LEAVE	BIT(3)
#define BR_ADMIN_COST		BIT(4)
#define BR_LEARNING		BIT(5)
#define BR_FLOOD		BIT(6)
#define BR_AUTO_MASK		(BR_FLOOD | BR_LEARNING)
#define BR_PROMISC		BIT(7)
#define BR_PROXYARP		BIT(8)
#define BR_LEARNING_SYNC	BIT(9)
#define BR_PROXYARP_WIFI	BIT(10)

#define BR_DEFAULT_AGEING_TIME	(300 * HZ)

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

typedef int br_should_route_hook_t(struct sk_buff *skb);
extern br_should_route_hook_t __rcu *br_should_route_hook;

#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
int br_multicast_list_adjacent(struct net_device *dev,
			       struct list_head *br_ip_list);
bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
#else
static inline int br_multicast_list_adjacent(struct net_device *dev,
					     struct list_head *br_ip_list)
{
	return 0;
}
static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
						     int proto)
{
	return false;
}
static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
						     int proto)
{
	return false;
}
#endif

#endif
Commit	Line	Data
	1	/*
	2	* Linux ethernet bridge
	3	*
	4	* Authors:
	5	* Lennert Buytenhek <buytenh@gnu.org>
	6	*
	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	#ifndef _LINUX_IF_BRIDGE_H
	13	#define _LINUX_IF_BRIDGE_H
	14
	15
	16	#include <linux/netdevice.h>
	17	#include <uapi/linux/if_bridge.h>
	18	#include <linux/bitops.h>
	19
	20	struct br_ip {
	21	union {
	22	__be32 ip4;
	23	#if IS_ENABLED(CONFIG_IPV6)
	24	struct in6_addr ip6;
	25	#endif
	26	} u;
	27	__be16 proto;
	28	__u16 vid;
	29	};
	30
	31	struct br_ip_list {
	32	struct list_head list;
	33	struct br_ip addr;
	34	};
	35
	36	#define BR_HAIRPIN_MODE BIT(0)
	37	#define BR_BPDU_GUARD BIT(1)
	38	#define BR_ROOT_BLOCK BIT(2)
	39	#define BR_MULTICAST_FAST_LEAVE BIT(3)
	40	#define BR_ADMIN_COST BIT(4)
	41	#define BR_LEARNING BIT(5)
	42	#define BR_FLOOD BIT(6)
	43	#define BR_AUTO_MASK (BR_FLOOD \| BR_LEARNING)
	44	#define BR_PROMISC BIT(7)
	45	#define BR_PROXYARP BIT(8)
	46	#define BR_LEARNING_SYNC BIT(9)
	47	#define BR_PROXYARP_WIFI BIT(10)
	48
	49	#define BR_DEFAULT_AGEING_TIME (300 * HZ)
	50
	51	extern void brioctl_set(int (ioctl_hook)(struct net , unsigned int, void __user *));
	52
	53	typedef int br_should_route_hook_t(struct sk_buff *skb);
	54	extern br_should_route_hook_t __rcu *br_should_route_hook;
	55
	56	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
	57	int br_multicast_list_adjacent(struct net_device *dev,
	58	struct list_head *br_ip_list);
	59	bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
	60	bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
	61	#else
	62	static inline int br_multicast_list_adjacent(struct net_device *dev,
	63	struct list_head *br_ip_list)
	64	{
	65	return 0;
	66	}
	67	static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
	68	int proto)
	69	{
	70	return false;
	71	}
	72	static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
	73	int proto)
	74	{
	75	return false;
	76	}
	77	#endif
	78
	79	#endif