1 #ifndef __LINUX_NEIGHBOUR_H 2 #define __LINUX_NEIGHBOUR_H 3 4 #include <linux/types.h> 5 #include <linux/netlink.h> 6 7 struct ndmsg { 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 17 enum { 18 NDA_UNSPEC, 19 NDA_DST, 20 NDA_LLADDR, 21 NDA_CACHEINFO, 22 NDA_PROBES, 23 NDA_VLAN, 24 NDA_PORT, 25 NDA_VNI, 26 NDA_IFINDEX, 27 NDA_MASTER, 28 NDA_LINK_NETNSID, 29 NDA_SRC_VNI, 30 __NDA_MAX 31 }; 32 33 #define NDA_MAX (__NDA_MAX - 1) 34 35 /* 36 * Neighbor Cache Entry Flags 37 */ 38 39 #define NTF_USE 0x01 40 #define NTF_SELF 0x02 41 #define NTF_MASTER 0x04 42 #define NTF_PROXY 0x08 /* == ATF_PUBL */ 43 #define NTF_EXT_LEARNED 0x10 44 #define NTF_OFFLOADED 0x20 45 #define NTF_ROUTER 0x80 46 47 /* 48 * Neighbor Cache Entry States. 49 */ 50 51 #define NUD_INCOMPLETE 0x01 52 #define NUD_REACHABLE 0x02 53 #define NUD_STALE 0x04 54 #define NUD_DELAY 0x08 55 #define NUD_PROBE 0x10 56 #define NUD_FAILED 0x20 57 58 /* Dummy states */ 59 #define NUD_NOARP 0x40 60 #define NUD_PERMANENT 0x80 61 #define NUD_NONE 0x00 62 63 /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change 64 and make no address resolution or NUD. 65 NUD_PERMANENT also cannot be deleted by garbage collectors. 66 */ 67 68 struct nda_cacheinfo { 69 __u32 ndm_confirmed; 70 __u32 ndm_used; 71 __u32 ndm_updated; 72 __u32 ndm_refcnt; 73 }; 74 75 /***************************************************************** 76 * Neighbour tables specific messages. 77 * 78 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the 79 * NLM_F_DUMP flag set. Every neighbour table configuration is 80 * spread over multiple messages to avoid running into message 81 * size limits on systems with many interfaces. The first message 82 * in the sequence transports all not device specific data such as 83 * statistics, configuration, and the default parameter set. 84 * This message is followed by 0..n messages carrying device 85 * specific parameter sets. 86 * Although the ordering should be sufficient, NDTA_NAME can be 87 * used to identify sequences. The initial message can be identified 88 * by checking for NDTA_CONFIG. The device specific messages do 89 * not contain this TLV but have NDTPA_IFINDEX set to the 90 * corresponding interface index. 91 * 92 * To change neighbour table attributes, send RTM_SETNEIGHTBL 93 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], 94 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked 95 * otherwise. Device specific parameter sets can be changed by 96 * setting NDTPA_IFINDEX to the interface index of the corresponding 97 * device. 98 ****/ 99 100 struct ndt_stats { 101 __u64 ndts_allocs; 102 __u64 ndts_destroys; 103 __u64 ndts_hash_grows; 104 __u64 ndts_res_failed; 105 __u64 ndts_lookups; 106 __u64 ndts_hits; 107 __u64 ndts_rcv_probes_mcast; 108 __u64 ndts_rcv_probes_ucast; 109 __u64 ndts_periodic_gc_runs; 110 __u64 ndts_forced_gc_runs; 111 __u64 ndts_table_fulls; 112 }; 113 114 enum { 115 NDTPA_UNSPEC, 116 NDTPA_IFINDEX, /* u32, unchangeable */ 117 NDTPA_REFCNT, /* u32, read-only */ 118 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ 119 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ 120 NDTPA_RETRANS_TIME, /* u64, msecs */ 121 NDTPA_GC_STALETIME, /* u64, msecs */ 122 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ 123 NDTPA_QUEUE_LEN, /* u32 */ 124 NDTPA_APP_PROBES, /* u32 */ 125 NDTPA_UCAST_PROBES, /* u32 */ 126 NDTPA_MCAST_PROBES, /* u32 */ 127 NDTPA_ANYCAST_DELAY, /* u64, msecs */ 128 NDTPA_PROXY_DELAY, /* u64, msecs */ 129 NDTPA_PROXY_QLEN, /* u32 */ 130 NDTPA_LOCKTIME, /* u64, msecs */ 131 NDTPA_QUEUE_LENBYTES, /* u32 */ 132 NDTPA_MCAST_REPROBES, /* u32 */ 133 NDTPA_PAD, 134 __NDTPA_MAX 135 }; 136 #define NDTPA_MAX (__NDTPA_MAX - 1) 137 138 struct ndtmsg { 139 __u8 ndtm_family; 140 __u8 ndtm_pad1; 141 __u16 ndtm_pad2; 142 }; 143 144 struct ndt_config { 145 __u16 ndtc_key_len; 146 __u16 ndtc_entry_size; 147 __u32 ndtc_entries; 148 __u32 ndtc_last_flush; /* delta to now in msecs */ 149 __u32 ndtc_last_rand; /* delta to now in msecs */ 150 __u32 ndtc_hash_rnd; 151 __u32 ndtc_hash_mask; 152 __u32 ndtc_hash_chain_gc; 153 __u32 ndtc_proxy_qlen; 154 }; 155 156 enum { 157 NDTA_UNSPEC, 158 NDTA_NAME, /* char *, unchangeable */ 159 NDTA_THRESH1, /* u32 */ 160 NDTA_THRESH2, /* u32 */ 161 NDTA_THRESH3, /* u32 */ 162 NDTA_CONFIG, /* struct ndt_config, read-only */ 163 NDTA_PARMS, /* nested TLV NDTPA_* */ 164 NDTA_STATS, /* struct ndt_stats, read-only */ 165 NDTA_GC_INTERVAL, /* u64, msecs */ 166 NDTA_PAD, 167 __NDTA_MAX 168 }; 169 #define NDTA_MAX (__NDTA_MAX - 1) 170 171 #endif 172