1/* $NetBSD: ieee8023ad_lacp.h,v 1.3 2008/12/16 22:35:38 christos Exp $ */
2
3/*-
4 * Copyright (c)2005 YAMAMOTO Takashi,
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _NET_AGR_IEEE8023AD_LACP_H_
30#define _NET_AGR_IEEE8023AD_LACP_H_
31
32/*
33 * IEEE802.3ad LACP
34 *
35 * protocol definitions.
36 */
37
38struct lacp_systemid {
39 uint16_t lsi_prio;
40 uint8_t lsi_mac[6];
41} __packed;
42
43struct lacp_portid {
44 uint16_t lpi_prio;
45 uint16_t lpi_portno;
46} __packed;
47
48struct lacp_peerinfo {
49 struct lacp_systemid lip_systemid;
50 uint16_t lip_key;
51 struct lacp_portid lip_portid;
52 uint8_t lip_state;
53 uint8_t lip_resv[3];
54} __packed;
55
56#define LACP_STATE_ACTIVITY (1<<0)
57#define LACP_STATE_TIMEOUT (1<<1)
58#define LACP_STATE_AGGREGATION (1<<2)
59#define LACP_STATE_SYNC (1<<3)
60#define LACP_STATE_COLLECTING (1<<4)
61#define LACP_STATE_DISTRIBUTING (1<<5)
62#define LACP_STATE_DEFAULTED (1<<6)
63#define LACP_STATE_EXPIRED (1<<7)
64
65/* for snprintb(3) */
66#define LACP_STATE_BITS \
67 "\177\020" \
68 "b\0ACTIVITY\0" \
69 "b\1TIMEOUT\0" \
70 "b\2AGGREGATION\0" \
71 "b\3SYNC\0" \
72 "b\4COLLECTING\0" \
73 "b\5DISTRIBUTING\0" \
74 "b\6DEFAULTED\0" \
75 "b\7EXPIRED\0"
76
77struct lacp_collectorinfo {
78 uint16_t lci_maxdelay;
79 uint8_t lci_resv[12];
80} __packed;
81
82struct lacpdu {
83 struct ether_header ldu_eh;
84 struct slowprothdr ldu_sph;
85
86 struct tlvhdr ldu_tlv_actor;
87 struct lacp_peerinfo ldu_actor;
88 struct tlvhdr ldu_tlv_partner;
89 struct lacp_peerinfo ldu_partner;
90 struct tlvhdr ldu_tlv_collector;
91 struct lacp_collectorinfo ldu_collector;
92 struct tlvhdr ldu_tlv_term;
93 uint8_t ldu_resv[50];
94} __packed;
95
96#define LACP_TYPE_ACTORINFO 1
97#define LACP_TYPE_PARTNERINFO 2
98#define LACP_TYPE_COLLECTORINFO 3
99
100/* timeout values (in sec) */
101#define LACP_FAST_PERIODIC_TIME (1)
102#define LACP_SLOW_PERIODIC_TIME (30)
103#define LACP_SHORT_TIMEOUT_TIME (3 * LACP_FAST_PERIODIC_TIME)
104#define LACP_LONG_TIMEOUT_TIME (3 * LACP_SLOW_PERIODIC_TIME)
105#define LACP_CHURN_DETECTION_TIME (60)
106#define LACP_AGGREGATE_WAIT_TIME (2)
107
108#endif /* !_NET_AGR_IEEE8023AD_LACP_H_ */
109