[mirror_iproute2.git] / include / linux / neighbour.h

#ifndef __LINUX_NEIGHBOUR_H
#define __LINUX_NEIGHBOUR_H

#include <linux/types.h>
#include <linux/netlink.h>

struct ndmsg {
	__u8		ndm_family;
	__u8		ndm_pad1;
	__u16		ndm_pad2;
	__s32		ndm_ifindex;
	__u16		ndm_state;
	__u8		ndm_flags;
	__u8		ndm_type;
};

enum {
	NDA_UNSPEC,
	NDA_DST,
	NDA_LLADDR,
	NDA_CACHEINFO,
	NDA_PROBES,
	NDA_VLAN,
	NDA_PORT,
	NDA_VNI,
	NDA_IFINDEX,
	NDA_MASTER,
	NDA_LINK_NETNSID,
	__NDA_MAX
};

#define NDA_MAX (__NDA_MAX - 1)

/*
 *	Neighbor Cache Entry Flags
 */

#define NTF_USE		0x01
#define NTF_SELF	0x02
#define NTF_MASTER	0x04
#define NTF_PROXY	0x08	/* == ATF_PUBL */
#define NTF_EXT_LEARNED	0x10
#define NTF_ROUTER	0x80

/*
 *	Neighbor Cache Entry States.
 */

#define NUD_INCOMPLETE	0x01
#define NUD_REACHABLE	0x02
#define NUD_STALE	0x04
#define NUD_DELAY	0x08
#define NUD_PROBE	0x10
#define NUD_FAILED	0x20

/* Dummy states */
#define NUD_NOARP	0x40
#define NUD_PERMANENT	0x80
#define NUD_NONE	0x00

/* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
   and make no address resolution or NUD.
   NUD_PERMANENT also cannot be deleted by garbage collectors.
 */

struct nda_cacheinfo {
	__u32		ndm_confirmed;
	__u32		ndm_used;
	__u32		ndm_updated;
	__u32		ndm_refcnt;
};

/*****************************************************************
 *		Neighbour tables specific messages.
 *
 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
 * NLM_F_DUMP flag set. Every neighbour table configuration is
 * spread over multiple messages to avoid running into message
 * size limits on systems with many interfaces. The first message
 * in the sequence transports all not device specific data such as
 * statistics, configuration, and the default parameter set.
 * This message is followed by 0..n messages carrying device
 * specific parameter sets.
 * Although the ordering should be sufficient, NDTA_NAME can be
 * used to identify sequences. The initial message can be identified
 * by checking for NDTA_CONFIG. The device specific messages do
 * not contain this TLV but have NDTPA_IFINDEX set to the
 * corresponding interface index.
 *
 * To change neighbour table attributes, send RTM_SETNEIGHTBL
 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
 * otherwise. Device specific parameter sets can be changed by
 * setting NDTPA_IFINDEX to the interface index of the corresponding
 * device.
 ****/

struct ndt_stats {
	__u64		ndts_allocs;
	__u64		ndts_destroys;
	__u64		ndts_hash_grows;
	__u64		ndts_res_failed;
	__u64		ndts_lookups;
	__u64		ndts_hits;
	__u64		ndts_rcv_probes_mcast;
	__u64		ndts_rcv_probes_ucast;
	__u64		ndts_periodic_gc_runs;
	__u64		ndts_forced_gc_runs;
	__u64		ndts_table_fulls;
};

enum {
	NDTPA_UNSPEC,
	NDTPA_IFINDEX,			/* u32, unchangeable */
	NDTPA_REFCNT,			/* u32, read-only */
	NDTPA_REACHABLE_TIME,		/* u64, read-only, msecs */
	NDTPA_BASE_REACHABLE_TIME,	/* u64, msecs */
	NDTPA_RETRANS_TIME,		/* u64, msecs */
	NDTPA_GC_STALETIME,		/* u64, msecs */
	NDTPA_DELAY_PROBE_TIME,		/* u64, msecs */
	NDTPA_QUEUE_LEN,		/* u32 */
	NDTPA_APP_PROBES,		/* u32 */
	NDTPA_UCAST_PROBES,		/* u32 */
	NDTPA_MCAST_PROBES,		/* u32 */
	NDTPA_ANYCAST_DELAY,		/* u64, msecs */
	NDTPA_PROXY_DELAY,		/* u64, msecs */
	NDTPA_PROXY_QLEN,		/* u32 */
	NDTPA_LOCKTIME,			/* u64, msecs */
	NDTPA_QUEUE_LENBYTES,		/* u32 */
	NDTPA_MCAST_REPROBES,		/* u32 */
	__NDTPA_MAX
};
#define NDTPA_MAX (__NDTPA_MAX - 1)

struct ndtmsg {
	__u8		ndtm_family;
	__u8		ndtm_pad1;
	__u16		ndtm_pad2;
};

struct ndt_config {
	__u16		ndtc_key_len;
	__u16		ndtc_entry_size;
	__u32		ndtc_entries;
	__u32		ndtc_last_flush;	/* delta to now in msecs */
	__u32		ndtc_last_rand;		/* delta to now in msecs */
	__u32		ndtc_hash_rnd;
	__u32		ndtc_hash_mask;
	__u32		ndtc_hash_chain_gc;
	__u32		ndtc_proxy_qlen;
};

enum {
	NDTA_UNSPEC,
	NDTA_NAME,			/* char *, unchangeable */
	NDTA_THRESH1,			/* u32 */
	NDTA_THRESH2,			/* u32 */
	NDTA_THRESH3,			/* u32 */
	NDTA_CONFIG,			/* struct ndt_config, read-only */
	NDTA_PARMS,			/* nested TLV NDTPA_* */
	NDTA_STATS,			/* struct ndt_stats, read-only */
	NDTA_GC_INTERVAL,		/* u64, msecs */
	__NDTA_MAX
};
#define NDTA_MAX (__NDTA_MAX - 1)

#endif
Commit	Line	Data
ead2ba70 SH	1	#ifndef __LINUX_NEIGHBOUR_H
	2	#define __LINUX_NEIGHBOUR_H
	3
67881151	4	#include <linux/types.h>
ead2ba70 SH	5	#include <linux/netlink.h>
ead2ba70 SH	6
ab322673	7	struct ndmsg {
ead2ba70 SH	8	__u8 ndm_family;
	9	__u8 ndm_pad1;
	10	__u16 ndm_pad2;
	11	__s32 ndm_ifindex;
	12	__u16 ndm_state;
	13	__u8 ndm_flags;
	14	__u8 ndm_type;
	15	};
	16
ab322673	17	enum {
ead2ba70 SH	18	NDA_UNSPEC,
	19	NDA_DST,
	20	NDA_LLADDR,
	21	NDA_CACHEINFO,
	22	NDA_PROBES,
609106d3	23	NDA_VLAN,
79e9a1db SH	24	NDA_PORT,
	25	NDA_VNI,
	26	NDA_IFINDEX,
fd5c1d43	27	NDA_MASTER,
8c58d403	28	NDA_LINK_NETNSID,
ead2ba70 SH	29	__NDA_MAX
	30	};
	31
	32	#define NDA_MAX (__NDA_MAX - 1)
	33
	34	/*
	35	* Neighbor Cache Entry Flags
	36	*/
	37
c40bba69	38	#define NTF_USE 0x01
5e4dc84f SH	39	#define NTF_SELF 0x02
5e4dc84f SH	40	#define NTF_MASTER 0x04
1c098687 SH	41	#define NTF_PROXY 0x08 /* == ATF_PUBL */
	42	#define NTF_EXT_LEARNED 0x10
	43	#define NTF_ROUTER 0x80
5e4dc84f	44
ead2ba70 SH	45	/*
	46	* Neighbor Cache Entry States.
	47	*/
	48
	49	#define NUD_INCOMPLETE 0x01
	50	#define NUD_REACHABLE 0x02
	51	#define NUD_STALE 0x04
	52	#define NUD_DELAY 0x08
	53	#define NUD_PROBE 0x10
	54	#define NUD_FAILED 0x20
	55
	56	/* Dummy states */
	57	#define NUD_NOARP 0x40
	58	#define NUD_PERMANENT 0x80
	59	#define NUD_NONE 0x00
	60
	61	/* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
	62	and make no address resolution or NUD.
8cfeddab	63	NUD_PERMANENT also cannot be deleted by garbage collectors.
ead2ba70 SH	64	*/
ead2ba70 SH	65
ab322673	66	struct nda_cacheinfo {
ead2ba70 SH	67	__u32 ndm_confirmed;
	68	__u32 ndm_used;
	69	__u32 ndm_updated;
	70	__u32 ndm_refcnt;
	71	};
	72
	73	/*****************************************************************
	74	* Neighbour tables specific messages.
	75	*
	76	* To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
	77	* NLM_F_DUMP flag set. Every neighbour table configuration is
	78	* spread over multiple messages to avoid running into message
	79	* size limits on systems with many interfaces. The first message
	80	* in the sequence transports all not device specific data such as
	81	* statistics, configuration, and the default parameter set.
	82	* This message is followed by 0..n messages carrying device
	83	* specific parameter sets.
	84	* Although the ordering should be sufficient, NDTA_NAME can be
	85	* used to identify sequences. The initial message can be identified
	86	* by checking for NDTA_CONFIG. The device specific messages do
	87	* not contain this TLV but have NDTPA_IFINDEX set to the
	88	* corresponding interface index.
	89	*
	90	* To change neighbour table attributes, send RTM_SETNEIGHTBL
	91	* with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
	92	* NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
	93	* otherwise. Device specific parameter sets can be changed by
	94	* setting NDTPA_IFINDEX to the interface index of the corresponding
	95	* device.
	96	****/
	97
ab322673	98	struct ndt_stats {
ead2ba70 SH	99	__u64 ndts_allocs;
	100	__u64 ndts_destroys;
	101	__u64 ndts_hash_grows;
	102	__u64 ndts_res_failed;
	103	__u64 ndts_lookups;
	104	__u64 ndts_hits;
	105	__u64 ndts_rcv_probes_mcast;
	106	__u64 ndts_rcv_probes_ucast;
	107	__u64 ndts_periodic_gc_runs;
	108	__u64 ndts_forced_gc_runs;
8fcba79e	109	__u64 ndts_table_fulls;
ead2ba70 SH	110	};
	111
	112	enum {
	113	NDTPA_UNSPEC,
	114	NDTPA_IFINDEX, /* u32, unchangeable */
	115	NDTPA_REFCNT, /* u32, read-only */
	116	NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
	117	NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
	118	NDTPA_RETRANS_TIME, /* u64, msecs */
	119	NDTPA_GC_STALETIME, /* u64, msecs */
	120	NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
	121	NDTPA_QUEUE_LEN, /* u32 */
	122	NDTPA_APP_PROBES, /* u32 */
	123	NDTPA_UCAST_PROBES, /* u32 */
	124	NDTPA_MCAST_PROBES, /* u32 */
	125	NDTPA_ANYCAST_DELAY, /* u64, msecs */
	126	NDTPA_PROXY_DELAY, /* u64, msecs */
	127	NDTPA_PROXY_QLEN, /* u32 */
	128	NDTPA_LOCKTIME, /* u64, msecs */
a08d2590	129	NDTPA_QUEUE_LENBYTES, /* u32 */
cbdc3ed8	130	NDTPA_MCAST_REPROBES, /* u32 */
ead2ba70 SH	131	__NDTPA_MAX
	132	};
	133	#define NDTPA_MAX (__NDTPA_MAX - 1)
	134
ab322673	135	struct ndtmsg {
ead2ba70 SH	136	__u8 ndtm_family;
	137	__u8 ndtm_pad1;
	138	__u16 ndtm_pad2;
	139	};
	140
ab322673	141	struct ndt_config {
ead2ba70 SH	142	__u16 ndtc_key_len;
	143	__u16 ndtc_entry_size;
	144	__u32 ndtc_entries;
	145	__u32 ndtc_last_flush; /* delta to now in msecs */
	146	__u32 ndtc_last_rand; /* delta to now in msecs */
	147	__u32 ndtc_hash_rnd;
	148	__u32 ndtc_hash_mask;
	149	__u32 ndtc_hash_chain_gc;
	150	__u32 ndtc_proxy_qlen;
	151	};
	152
	153	enum {
	154	NDTA_UNSPEC,
	155	NDTA_NAME, /* char , unchangeable /
	156	NDTA_THRESH1, /* u32 */
	157	NDTA_THRESH2, /* u32 */
	158	NDTA_THRESH3, /* u32 */
	159	NDTA_CONFIG, /* struct ndt_config, read-only */
	160	NDTA_PARMS, /* nested TLV NDTPA_* */
	161	NDTA_STATS, /* struct ndt_stats, read-only */
	162	NDTA_GC_INTERVAL, /* u64, msecs */
	163	__NDTA_MAX
	164	};
	165	#define NDTA_MAX (__NDTA_MAX - 1)
	166
	167	#endif