[linux-block.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
	} src;
	union {
		__be32	ip4;
#if IS_ENABLED(CONFIG_IPV6)
		struct in6_addr ip6;
#endif
		unsigned char	mac_addr[ETH_ALEN];
	} dst;
	__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_MRP_AWARE		BIT(17)
#define BR_MRP_LOST_CONT	BIT(18)
#define BR_MRP_LOST_IN_CONT	BIT(19)
#define BR_TX_FWD_OFFLOAD	BIT(20)
#define BR_PORT_LOCKED		BIT(21)
#define BR_PORT_MAB		BIT(22)

#define BR_DEFAULT_AGEING_TIME	(300 * HZ)

struct net_bridge;
void brioctl_set(int (*hook)(struct net *net, struct net_bridge *br,
			     unsigned int cmd, struct ifreq *ifr,
			     void __user *uarg));
int br_ioctl_call(struct net *net, struct net_bridge *br, unsigned int cmd,
		  struct ifreq *ifr, void __user *uarg);

#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_has_router_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_has_router_adjacent(struct net_device *dev,
						    int proto)
{
	return true;
}

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);
int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid,
			 struct bridge_vlan_info *p_vinfo);
bool br_mst_enabled(const struct net_device *dev);
int br_mst_get_info(const struct net_device *dev, u16 msti, unsigned long *vids);
int br_mst_get_state(const struct net_device *dev, u16 msti, u8 *state);
#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;
}

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

static inline bool br_mst_enabled(const struct net_device *dev)
{
	return false;
}

static inline int br_mst_get_info(const struct net_device *dev, u16 msti,
				  unsigned long *vids)
{
	return -EINVAL;
}
static inline int br_mst_get_state(const struct net_device *dev, u16 msti,
				   u8 *state)
{
	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);
u8 br_port_get_stp_state(const struct net_device *dev);
clock_t br_get_ageing_time(const struct net_device *br_dev);
#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;
}

static inline u8 br_port_get_stp_state(const struct net_device *dev)
{
	return BR_STATE_DISABLED;
}

static inline clock_t br_get_ageing_time(const struct net_device *br_dev)
{
	return 0;
}
#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;
e1ac1185 NA	21	#endif
	22	} src;
	23	union {
	24	__be32 ip4;
	25	#if IS_ENABLED(CONFIG_IPV6)
	26	struct in6_addr ip6;
07f8ac4a	27	#endif
955062b0	28	unsigned char mac_addr[ETH_ALEN];
eab3227b	29	} dst;
07f8ac4a LL	30	__be16 proto;
	31	__u16 vid;
	32	};
	33
	34	struct br_ip_list {
	35	struct list_head list;
	36	struct br_ip addr;
	37	};
	38
065c212a SF	39	#define BR_HAIRPIN_MODE BIT(0)
	40	#define BR_BPDU_GUARD BIT(1)
	41	#define BR_ROOT_BLOCK BIT(2)
	42	#define BR_MULTICAST_FAST_LEAVE BIT(3)
	43	#define BR_ADMIN_COST BIT(4)
	44	#define BR_LEARNING BIT(5)
	45	#define BR_FLOOD BIT(6)
	46	#define BR_AUTO_MASK (BR_FLOOD \| BR_LEARNING)
	47	#define BR_PROMISC BIT(7)
	48	#define BR_PROXYARP BIT(8)
efacacda	49	#define BR_LEARNING_SYNC BIT(9)
842a9ae0	50	#define BR_PROXYARP_WIFI BIT(10)
b6cb5ac8	51	#define BR_MCAST_FLOOD BIT(11)
6db6f0ea	52	#define BR_MULTICAST_TO_UNICAST BIT(12)
b3c7ef0a	53	#define BR_VLAN_TUNNEL BIT(13)
99f906e9	54	#define BR_BCAST_FLOOD BIT(14)
821f1b21	55	#define BR_NEIGH_SUPPRESS BIT(15)
7d850abd	56	#define BR_ISOLATED BIT(16)
4b8d7d4c HV	57	#define BR_MRP_AWARE BIT(17)
4b8d7d4c HV	58	#define BR_MRP_LOST_CONT BIT(18)
43364ef1	59	#define BR_MRP_LOST_IN_CONT BIT(19)
47211192	60	#define BR_TX_FWD_OFFLOAD BIT(20)
a21d9a67	61	#define BR_PORT_LOCKED BIT(21)
a35ec8e3	62	#define BR_PORT_MAB BIT(22)
065c212a	63
a79e88d9 SF	64	#define BR_DEFAULT_AGEING_TIME (300 * HZ)
a79e88d9 SF	65
ad2f99ae AB	66	struct net_bridge;
	67	void brioctl_set(int (hook)(struct net net, struct net_bridge *br,
	68	unsigned int cmd, struct ifreq *ifr,
	69	void __user *uarg));
	70	int br_ioctl_call(struct net net, struct net_bridge br, unsigned int cmd,
	71	struct ifreq ifr, void __user uarg);
a386f990	72
f941a6d9	73	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
07f8ac4a LL	74	int br_multicast_list_adjacent(struct net_device *dev,
07f8ac4a LL	75	struct list_head *br_ip_list);
c34963e2	76	bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
2cd41431	77	bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
3b85f9ba	78	bool br_multicast_has_router_adjacent(struct net_device *dev, int proto);
9341b988	79	bool br_multicast_enabled(const struct net_device *dev);
0912bda4	80	bool br_multicast_router(const struct net_device *dev);
f941a6d9 LL	81	#else
	82	static inline int br_multicast_list_adjacent(struct net_device *dev,
	83	struct list_head *br_ip_list)
	84	{
	85	return 0;
	86	}
c34963e2 LL	87	static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
	88	int proto)
	89	{
	90	return false;
	91	}
f941a6d9 LL	92	static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
	93	int proto)
	94	{
	95	return false;
	96	}
3b85f9ba LL	97
	98	static inline bool br_multicast_has_router_adjacent(struct net_device *dev,
	99	int proto)
	100	{
	101	return true;
	102	}
	103
9341b988 IS	104	static inline bool br_multicast_enabled(const struct net_device *dev)
	105	{
	106	return false;
	107	}
0912bda4 YG	108	static inline bool br_multicast_router(const struct net_device *dev)
	109	{
	110	return false;
	111	}
f941a6d9	112	#endif
1da177e4	113
1f51445a IS	114	#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
1f51445a IS	115	bool br_vlan_enabled(const struct net_device *dev);
4d4fd361	116	int br_vlan_get_pvid(const struct net_device dev, u16 p_pvid);
7582f5b7	117	int br_vlan_get_pvid_rcu(const struct net_device dev, u16 p_pvid);
31aed46f	118	int br_vlan_get_proto(const struct net_device dev, u16 p_proto);
4d4fd361 PM	119	int br_vlan_get_info(const struct net_device *dev, u16 vid,
4d4fd361 PM	120	struct bridge_vlan_info *p_vinfo);
ee80dd2e VO	121	int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid,
ee80dd2e VO	122	struct bridge_vlan_info *p_vinfo);
48d57b2e	123	bool br_mst_enabled(const struct net_device *dev);
cceac97a	124	int br_mst_get_info(const struct net_device dev, u16 msti, unsigned long vids);
f54fd0e1	125	int br_mst_get_state(const struct net_device dev, u16 msti, u8 state);
1f51445a IS	126	#else
	127	static inline bool br_vlan_enabled(const struct net_device *dev)
	128	{
	129	return false;
	130	}
4d4fd361 PM	131
	132	static inline int br_vlan_get_pvid(const struct net_device dev, u16 p_pvid)
	133	{
000244d3	134	return -EINVAL;
4d4fd361 PM	135	}
4d4fd361 PM	136
31aed46f	137	static inline int br_vlan_get_proto(const struct net_device dev, u16 p_proto)
	138	{
	139	return -EINVAL;
	140	}
	141
7582f5b7 PNA	142	static inline int br_vlan_get_pvid_rcu(const struct net_device dev, u16 p_pvid)
	143	{
	144	return -EINVAL;
	145	}
	146
4d4fd361 PM	147	static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
4d4fd361 PM	148	struct bridge_vlan_info *p_vinfo)
ee80dd2e VO	149	{
	150	return -EINVAL;
	151	}
	152
	153	static inline int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid,
	154	struct bridge_vlan_info *p_vinfo)
4d4fd361	155	{
000244d3	156	return -EINVAL;
4d4fd361	157	}
cceac97a	158
48d57b2e TW	159	static inline bool br_mst_enabled(const struct net_device *dev)
	160	{
	161	return false;
	162	}
	163
cceac97a TW	164	static inline int br_mst_get_info(const struct net_device *dev, u16 msti,
	165	unsigned long *vids)
	166	{
	167	return -EINVAL;
	168	}
f54fd0e1 TW	169	static inline int br_mst_get_state(const struct net_device *dev, u16 msti,
	170	u8 *state)
	171	{
	172	return -EINVAL;
	173	}
4d4fd361 PM	174	#endif
	175
	176	#if IS_ENABLED(CONFIG_BRIDGE)
	177	struct net_device br_fdb_find_port(const struct net_device br_dev,
	178	const unsigned char *addr,
	179	__u16 vid);
43920edf	180	void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
085ddc87	181	bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
c0e715bb	182	u8 br_port_get_stp_state(const struct net_device *dev);
bdf123b4	183	clock_t br_get_ageing_time(const struct net_device *br_dev);
4d4fd361 PM	184	#else
	185	static inline struct net_device *
	186	br_fdb_find_port(const struct net_device *br_dev,
	187	const unsigned char *addr,
	188	__u16 vid)
	189	{
	190	return NULL;
	191	}
43920edf PM	192
	193	static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
	194	{
	195	}
	196
085ddc87 IS	197	static inline bool
	198	br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
	199	{
	200	return false;
	201	}
c0e715bb VO	202
	203	static inline u8 br_port_get_stp_state(const struct net_device *dev)
	204	{
	205	return BR_STATE_DISABLED;
	206	}
f1d42ea1	207
bdf123b4	208	static inline clock_t br_get_ageing_time(const struct net_device *br_dev)
f1d42ea1 VO	209	{
	210	return 0;
	211	}
1f51445a IS	212	#endif
1f51445a IS	213
1da177e4	214	#endif