| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| #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_SRC_VNI, |
| NDA_PROTOCOL, /* Originator of entry */ |
| NDA_NH_ID, |
| __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_OFFLOADED 0x20 |
| #define NTF_STICKY 0x40 |
| #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_PAD, |
| __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_PAD, |
| __NDTA_MAX |
| }; |
| #define NDTA_MAX (__NDTA_MAX - 1) |
| |
| #endif |