---

---

---

001: #ifndef __LINUX_NEIGHBOUR_H
002: #define __LINUX_NEIGHBOUR_H
003: 
004: #include <linux/types.h>
005: #include <linux/netlink.h>
006: 
007: struct ndmsg {
008:         __u8            ndm_family;
009:         __u8            ndm_pad1;
010:         __u16           ndm_pad2;
011:         __s32           ndm_ifindex;
012:         __u16           ndm_state;
013:         __u8            ndm_flags;
014:         __u8            ndm_type;
015: };
016: 
017: enum {
018:         NDA_UNSPEC,
019:         NDA_DST,
020:         NDA_LLADDR,
021:         NDA_CACHEINFO,
022:         NDA_PROBES,
023:         __NDA_MAX
024: };
025: 
026: #define NDA_MAX (__NDA_MAX - 1)
027: 
028: /*
029:  *      Neighbor Cache Entry Flags
030:  */
031: 
032: #define NTF_USE         0x01
033: #define NTF_PROXY       0x08    /* == ATF_PUBL */
034: #define NTF_ROUTER      0x80
035: 
036: /*
037:  *      Neighbor Cache Entry States.
038:  */
039: 
040: #define NUD_INCOMPLETE  0x01
041: #define NUD_REACHABLE   0x02
042: #define NUD_STALE       0x04
043: #define NUD_DELAY       0x08
044: #define NUD_PROBE       0x10
045: #define NUD_FAILED      0x20
046: 
047: /* Dummy states */
048: #define NUD_NOARP       0x40
049: #define NUD_PERMANENT   0x80
050: #define NUD_NONE        0x00
051: 
052: /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
053:    and make no address resolution or NUD.
054:    NUD_PERMANENT is also cannot be deleted by garbage collectors.
055:  */
056: 
057: struct nda_cacheinfo {
058:         __u32           ndm_confirmed;
059:         __u32           ndm_used;
060:         __u32           ndm_updated;
061:         __u32           ndm_refcnt;
062: };
063: 
064: /*****************************************************************
065:  *              Neighbour tables specific messages.
066:  *
067:  * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
068:  * NLM_F_DUMP flag set. Every neighbour table configuration is
069:  * spread over multiple messages to avoid running into message
070:  * size limits on systems with many interfaces. The first message
071:  * in the sequence transports all not device specific data such as
072:  * statistics, configuration, and the default parameter set.
073:  * This message is followed by 0..n messages carrying device
074:  * specific parameter sets.
075:  * Although the ordering should be sufficient, NDTA_NAME can be
076:  * used to identify sequences. The initial message can be identified
077:  * by checking for NDTA_CONFIG. The device specific messages do
078:  * not contain this TLV but have NDTPA_IFINDEX set to the
079:  * corresponding interface index.
080:  *
081:  * To change neighbour table attributes, send RTM_SETNEIGHTBL
082:  * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
083:  * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
084:  * otherwise. Device specific parameter sets can be changed by
085:  * setting NDTPA_IFINDEX to the interface index of the corresponding
086:  * device.
087:  ****/
088: 
089: struct ndt_stats {
090:         __u64           ndts_allocs;
091:         __u64           ndts_destroys;
092:         __u64           ndts_hash_grows;
093:         __u64           ndts_res_failed;
094:         __u64           ndts_lookups;
095:         __u64           ndts_hits;
096:         __u64           ndts_rcv_probes_mcast;
097:         __u64           ndts_rcv_probes_ucast;
098:         __u64           ndts_periodic_gc_runs;
099:         __u64           ndts_forced_gc_runs;
100: };
101: 
102: enum {
103:         NDTPA_UNSPEC,
104:         NDTPA_IFINDEX,                  /* u32, unchangeable */
105:         NDTPA_REFCNT,                   /* u32, read-only */
106:         NDTPA_REACHABLE_TIME,           /* u64, read-only, msecs */
107:         NDTPA_BASE_REACHABLE_TIME,      /* u64, msecs */
108:         NDTPA_RETRANS_TIME,             /* u64, msecs */
109:         NDTPA_GC_STALETIME,             /* u64, msecs */
110:         NDTPA_DELAY_PROBE_TIME,         /* u64, msecs */
111:         NDTPA_QUEUE_LEN,                /* u32 */
112:         NDTPA_APP_PROBES,               /* u32 */
113:         NDTPA_UCAST_PROBES,             /* u32 */
114:         NDTPA_MCAST_PROBES,             /* u32 */
115:         NDTPA_ANYCAST_DELAY,            /* u64, msecs */
116:         NDTPA_PROXY_DELAY,              /* u64, msecs */
117:         NDTPA_PROXY_QLEN,               /* u32 */
118:         NDTPA_LOCKTIME,                 /* u64, msecs */
119:         __NDTPA_MAX
120: };
121: #define NDTPA_MAX (__NDTPA_MAX - 1)
122: 
123: struct ndtmsg {
124:         __u8            ndtm_family;
125:         __u8            ndtm_pad1;
126:         __u16           ndtm_pad2;
127: };
128: 
129: struct ndt_config {
130:         __u16           ndtc_key_len;
131:         __u16           ndtc_entry_size;
132:         __u32           ndtc_entries;
133:         __u32           ndtc_last_flush;        /* delta to now in msecs */
134:         __u32           ndtc_last_rand;         /* delta to now in msecs */
135:         __u32           ndtc_hash_rnd;
136:         __u32           ndtc_hash_mask;
137:         __u32           ndtc_hash_chain_gc;
138:         __u32           ndtc_proxy_qlen;
139: };
140: 
141: enum {
142:         NDTA_UNSPEC,
143:         NDTA_NAME,                      /* char *, unchangeable */
144:         NDTA_THRESH1,                   /* u32 */
145:         NDTA_THRESH2,                   /* u32 */
146:         NDTA_THRESH3,                   /* u32 */
147:         NDTA_CONFIG,                    /* struct ndt_config, read-only */
148:         NDTA_PARMS,                     /* nested TLV NDTPA_* */
149:         NDTA_STATS,                     /* struct ndt_stats, read-only */
150:         NDTA_GC_INTERVAL,               /* u64, msecs */
151:         __NDTA_MAX
152: };
153: #define NDTA_MAX (__NDTA_MAX - 1)
154: 
155: #endif
156: 

---

---

---