[mirror_ubuntu-bionic-kernel.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_MCAST_FLOOD		BIT(11)
#define BR_MULTICAST_TO_UNICAST	BIT(12)
#define BR_VLAN_TUNNEL		BIT(13)
#define BR_BCAST_FLOOD		BIT(14)
#define BR_NEIGH_SUPPRESS	BIT(15)

#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);
bool br_multicast_enabled(const struct net_device *dev);
bool br_multicast_router(const struct net_device *dev);
#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;
}
static inline bool br_multicast_enabled(const struct net_device *dev)
{
	return false;
}
static inline bool br_multicast_router(const struct net_device *dev)
{
	return false;
}
#endif

#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
bool br_vlan_enabled(const struct net_device *dev);
#else
static inline bool br_vlan_enabled(const struct net_device *dev)
{
	return false;
}
#endif

#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	*/
1da177e4 LT	12	#ifndef _LINUX_IF_BRIDGE_H
	13	#define _LINUX_IF_BRIDGE_H
	14
1da177e4 LT	15
1da177e4 LT	16	#include <linux/netdevice.h>
607ca46e	17	#include <uapi/linux/if_bridge.h>
065c212a	18	#include <linux/bitops.h>
1da177e4	19
07f8ac4a LL	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
065c212a SF	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)
efacacda	46	#define BR_LEARNING_SYNC BIT(9)
842a9ae0	47	#define BR_PROXYARP_WIFI BIT(10)
b6cb5ac8	48	#define BR_MCAST_FLOOD BIT(11)
6db6f0ea	49	#define BR_MULTICAST_TO_UNICAST BIT(12)
b3c7ef0a	50	#define BR_VLAN_TUNNEL BIT(13)
99f906e9	51	#define BR_BCAST_FLOOD BIT(14)
821f1b21	52	#define BR_NEIGH_SUPPRESS BIT(15)
065c212a	53
a79e88d9 SF	54	#define BR_DEFAULT_AGEING_TIME (300 * HZ)
a79e88d9 SF	55
881d966b	56	extern void brioctl_set(int (ioctl_hook)(struct net , unsigned int, void __user *));
a386f990	57
2f46e079	58	typedef int br_should_route_hook_t(struct sk_buff *skb);
a386f990	59	extern br_should_route_hook_t __rcu *br_should_route_hook;
f941a6d9 LL	60
f941a6d9 LL	61	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
07f8ac4a LL	62	int br_multicast_list_adjacent(struct net_device *dev,
07f8ac4a LL	63	struct list_head *br_ip_list);
c34963e2	64	bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
2cd41431	65	bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
9341b988	66	bool br_multicast_enabled(const struct net_device *dev);
0912bda4	67	bool br_multicast_router(const struct net_device *dev);
f941a6d9 LL	68	#else
	69	static inline int br_multicast_list_adjacent(struct net_device *dev,
	70	struct list_head *br_ip_list)
	71	{
	72	return 0;
	73	}
c34963e2 LL	74	static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
	75	int proto)
	76	{
	77	return false;
	78	}
f941a6d9 LL	79	static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
	80	int proto)
	81	{
	82	return false;
	83	}
9341b988 IS	84	static inline bool br_multicast_enabled(const struct net_device *dev)
	85	{
	86	return false;
	87	}
0912bda4 YG	88	static inline bool br_multicast_router(const struct net_device *dev)
	89	{
	90	return false;
	91	}
f941a6d9	92	#endif
1da177e4	93
1f51445a IS	94	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
	95	bool br_vlan_enabled(const struct net_device *dev);
	96	#else
	97	static inline bool br_vlan_enabled(const struct net_device *dev)
	98	{
	99	return false;
	100	}
	101	#endif
	102
1da177e4	103	#endif