[mirror_ubuntu-jammy-kernel.git] / include / linux / if_bridge.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *	Linux ethernet bridge
 *
 *	Authors:
 *	Lennert Buytenhek		<buytenh@gnu.org>
 */
#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_ISOLATED		BIT(16)

#define BR_DEFAULT_AGEING_TIME	(300 * HZ)

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

#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);
int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid);
int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid);
int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto);
int br_vlan_get_info(const struct net_device *dev, u16 vid,
		     struct bridge_vlan_info *p_vinfo);
#else
static inline bool br_vlan_enabled(const struct net_device *dev)
{
	return false;
}

static inline int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid)
{
	return -EINVAL;
}

static inline int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto)
{
	return -EINVAL;
}

static inline int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid)
{
	return -EINVAL;
}

static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
				   struct bridge_vlan_info *p_vinfo)
{
	return -EINVAL;
}
#endif

#if IS_ENABLED(CONFIG_BRIDGE)
struct net_device *br_fdb_find_port(const struct net_device *br_dev,
				    const unsigned char *addr,
				    __u16 vid);
void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
#else
static inline struct net_device *
br_fdb_find_port(const struct net_device *br_dev,
		 const unsigned char *addr,
		 __u16 vid)
{
	return NULL;
}

static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
{
}

static inline bool
br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
{
	return false;
}
#endif

#endif
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
1da177e4 LT	2	/*
	3	* Linux ethernet bridge
	4	*
	5	* Authors:
	6	* Lennert Buytenhek <buytenh@gnu.org>
1da177e4	7	*/
1da177e4 LT	8	#ifndef _LINUX_IF_BRIDGE_H
	9	#define _LINUX_IF_BRIDGE_H
	10
1da177e4 LT	11
1da177e4 LT	12	#include <linux/netdevice.h>
607ca46e	13	#include <uapi/linux/if_bridge.h>
065c212a	14	#include <linux/bitops.h>
1da177e4	15
07f8ac4a LL	16	struct br_ip {
	17	union {
	18	__be32 ip4;
	19	#if IS_ENABLED(CONFIG_IPV6)
	20	struct in6_addr ip6;
	21	#endif
	22	} u;
	23	__be16 proto;
	24	__u16 vid;
	25	};
	26
	27	struct br_ip_list {
	28	struct list_head list;
	29	struct br_ip addr;
	30	};
	31
065c212a SF	32	#define BR_HAIRPIN_MODE BIT(0)
	33	#define BR_BPDU_GUARD BIT(1)
	34	#define BR_ROOT_BLOCK BIT(2)
	35	#define BR_MULTICAST_FAST_LEAVE BIT(3)
	36	#define BR_ADMIN_COST BIT(4)
	37	#define BR_LEARNING BIT(5)
	38	#define BR_FLOOD BIT(6)
	39	#define BR_AUTO_MASK (BR_FLOOD \| BR_LEARNING)
	40	#define BR_PROMISC BIT(7)
	41	#define BR_PROXYARP BIT(8)
efacacda	42	#define BR_LEARNING_SYNC BIT(9)
842a9ae0	43	#define BR_PROXYARP_WIFI BIT(10)
b6cb5ac8	44	#define BR_MCAST_FLOOD BIT(11)
6db6f0ea	45	#define BR_MULTICAST_TO_UNICAST BIT(12)
b3c7ef0a	46	#define BR_VLAN_TUNNEL BIT(13)
99f906e9	47	#define BR_BCAST_FLOOD BIT(14)
821f1b21	48	#define BR_NEIGH_SUPPRESS BIT(15)
7d850abd	49	#define BR_ISOLATED BIT(16)
065c212a	50
a79e88d9 SF	51	#define BR_DEFAULT_AGEING_TIME (300 * HZ)
a79e88d9 SF	52
881d966b	53	extern void brioctl_set(int (ioctl_hook)(struct net , unsigned int, void __user *));
a386f990	54
f941a6d9	55	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
07f8ac4a LL	56	int br_multicast_list_adjacent(struct net_device *dev,
07f8ac4a LL	57	struct list_head *br_ip_list);
c34963e2	58	bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
2cd41431	59	bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
9341b988	60	bool br_multicast_enabled(const struct net_device *dev);
0912bda4	61	bool br_multicast_router(const struct net_device *dev);
f941a6d9 LL	62	#else
	63	static inline int br_multicast_list_adjacent(struct net_device *dev,
	64	struct list_head *br_ip_list)
	65	{
	66	return 0;
	67	}
c34963e2 LL	68	static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
	69	int proto)
	70	{
	71	return false;
	72	}
f941a6d9 LL	73	static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
	74	int proto)
	75	{
	76	return false;
	77	}
9341b988 IS	78	static inline bool br_multicast_enabled(const struct net_device *dev)
	79	{
	80	return false;
	81	}
0912bda4 YG	82	static inline bool br_multicast_router(const struct net_device *dev)
	83	{
	84	return false;
	85	}
f941a6d9	86	#endif
1da177e4	87
1f51445a IS	88	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
1f51445a IS	89	bool br_vlan_enabled(const struct net_device *dev);
4d4fd361	90	int br_vlan_get_pvid(const struct net_device dev, u16 p_pvid);
7582f5b7	91	int br_vlan_get_pvid_rcu(const struct net_device dev, u16 p_pvid);
31aed46f	92	int br_vlan_get_proto(const struct net_device dev, u16 p_proto);
4d4fd361 PM	93	int br_vlan_get_info(const struct net_device *dev, u16 vid,
4d4fd361 PM	94	struct bridge_vlan_info *p_vinfo);
1f51445a IS	95	#else
	96	static inline bool br_vlan_enabled(const struct net_device *dev)
	97	{
	98	return false;
	99	}
4d4fd361 PM	100
	101	static inline int br_vlan_get_pvid(const struct net_device dev, u16 p_pvid)
	102	{
000244d3	103	return -EINVAL;
4d4fd361 PM	104	}
4d4fd361 PM	105
31aed46f	106	static inline int br_vlan_get_proto(const struct net_device dev, u16 p_proto)
	107	{
	108	return -EINVAL;
	109	}
	110
7582f5b7 PNA	111	static inline int br_vlan_get_pvid_rcu(const struct net_device dev, u16 p_pvid)
	112	{
	113	return -EINVAL;
	114	}
	115
4d4fd361 PM	116	static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
	117	struct bridge_vlan_info *p_vinfo)
	118	{
000244d3	119	return -EINVAL;
4d4fd361 PM	120	}
	121	#endif
	122
	123	#if IS_ENABLED(CONFIG_BRIDGE)
	124	struct net_device br_fdb_find_port(const struct net_device br_dev,
	125	const unsigned char *addr,
	126	__u16 vid);
43920edf	127	void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
085ddc87	128	bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
4d4fd361 PM	129	#else
	130	static inline struct net_device *
	131	br_fdb_find_port(const struct net_device *br_dev,
	132	const unsigned char *addr,
	133	__u16 vid)
	134	{
	135	return NULL;
	136	}
43920edf PM	137
	138	static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
	139	{
	140	}
	141
085ddc87 IS	142	static inline bool
	143	br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
	144	{
	145	return false;
	146	}
1f51445a IS	147	#endif
1f51445a IS	148
1da177e4	149	#endif