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authorThomas Graf <tgraf@suug.ch>2005-06-19 01:50:55 -0400
committerDavid S. Miller <davem@davemloft.net>2005-06-19 01:50:55 -0400
commitc7fb64db001f83ece669c76a02d8ec2fdb1dd307 (patch)
treef8b8375b8b619c00db3399a4ef6f67e2636dfac7 /include/linux/rtnetlink.h
parent00768244923f66801958a8d2d103f7b65608c9b6 (diff)
[NETLINK]: Neighbour table configuration and statistics via rtnetlink
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. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/rtnetlink.h')
-rw-r--r--include/linux/rtnetlink.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index a09b5d42babf..5a5cda160267 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -89,6 +89,13 @@ enum {
89 RTM_GETANYCAST = 62, 89 RTM_GETANYCAST = 62,
90#define RTM_GETANYCAST RTM_GETANYCAST 90#define RTM_GETANYCAST RTM_GETANYCAST
91 91
92 RTM_NEWNEIGHTBL = 64,
93#define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL
94 RTM_GETNEIGHTBL = 66,
95#define RTM_GETNEIGHTBL RTM_GETNEIGHTBL
96 RTM_SETNEIGHTBL,
97#define RTM_SETNEIGHTBL RTM_SETNEIGHTBL
98
92 __RTM_MAX, 99 __RTM_MAX,
93#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1) 100#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)
94}; 101};
@@ -493,6 +500,106 @@ struct nda_cacheinfo
493 __u32 ndm_refcnt; 500 __u32 ndm_refcnt;
494}; 501};
495 502
503
504/*****************************************************************
505 * Neighbour tables specific messages.
506 *
507 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
508 * NLM_F_DUMP flag set. Every neighbour table configuration is
509 * spread over multiple messages to avoid running into message
510 * size limits on systems with many interfaces. The first message
511 * in the sequence transports all not device specific data such as
512 * statistics, configuration, and the default parameter set.
513 * This message is followed by 0..n messages carrying device
514 * specific parameter sets.
515 * Although the ordering should be sufficient, NDTA_NAME can be
516 * used to identify sequences. The initial message can be identified
517 * by checking for NDTA_CONFIG. The device specific messages do
518 * not contain this TLV but have NDTPA_IFINDEX set to the
519 * corresponding interface index.
520 *
521 * To change neighbour table attributes, send RTM_SETNEIGHTBL
522 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
523 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
524 * otherwise. Device specific parameter sets can be changed by
525 * setting NDTPA_IFINDEX to the interface index of the corresponding
526 * device.
527 ****/
528
529struct ndt_stats
530{
531 __u64 ndts_allocs;
532 __u64 ndts_destroys;
533 __u64 ndts_hash_grows;
534 __u64 ndts_res_failed;
535 __u64 ndts_lookups;
536 __u64 ndts_hits;
537 __u64 ndts_rcv_probes_mcast;
538 __u64 ndts_rcv_probes_ucast;
539 __u64 ndts_periodic_gc_runs;
540 __u64 ndts_forced_gc_runs;
541};
542
543enum {
544 NDTPA_UNSPEC,
545 NDTPA_IFINDEX, /* u32, unchangeable */
546 NDTPA_REFCNT, /* u32, read-only */
547 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
548 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
549 NDTPA_RETRANS_TIME, /* u64, msecs */
550 NDTPA_GC_STALETIME, /* u64, msecs */
551 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
552 NDTPA_QUEUE_LEN, /* u32 */
553 NDTPA_APP_PROBES, /* u32 */
554 NDTPA_UCAST_PROBES, /* u32 */
555 NDTPA_MCAST_PROBES, /* u32 */
556 NDTPA_ANYCAST_DELAY, /* u64, msecs */
557 NDTPA_PROXY_DELAY, /* u64, msecs */
558 NDTPA_PROXY_QLEN, /* u32 */
559 NDTPA_LOCKTIME, /* u64, msecs */
560 __NDTPA_MAX
561};
562#define NDTPA_MAX (__NDTPA_MAX - 1)
563
564struct ndtmsg
565{
566 __u8 ndtm_family;
567 __u8 ndtm_pad1;
568 __u16 ndtm_pad2;
569};
570
571struct ndt_config
572{
573 __u16 ndtc_key_len;
574 __u16 ndtc_entry_size;
575 __u32 ndtc_entries;
576 __u32 ndtc_last_flush; /* delta to now in msecs */
577 __u32 ndtc_last_rand; /* delta to now in msecs */
578 __u32 ndtc_hash_rnd;
579 __u32 ndtc_hash_mask;
580 __u32 ndtc_hash_chain_gc;
581 __u32 ndtc_proxy_qlen;
582};
583
584enum {
585 NDTA_UNSPEC,
586 NDTA_NAME, /* char *, unchangeable */
587 NDTA_THRESH1, /* u32 */
588 NDTA_THRESH2, /* u32 */
589 NDTA_THRESH3, /* u32 */
590 NDTA_CONFIG, /* struct ndt_config, read-only */
591 NDTA_PARMS, /* nested TLV NDTPA_* */
592 NDTA_STATS, /* struct ndt_stats, read-only */
593 NDTA_GC_INTERVAL, /* u64, msecs */
594 __NDTA_MAX
595};
596#define NDTA_MAX (__NDTA_MAX - 1)
597
598#define NDTA_RTA(r) ((struct rtattr*)(((char*)(r)) + \
599 NLMSG_ALIGN(sizeof(struct ndtmsg))))
600#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg))
601
602
496/**** 603/****
497 * General form of address family dependent message. 604 * General form of address family dependent message.
498 ****/ 605 ****/