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      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 
     38 struct lacp_systemid {
     39 	uint16_t lsi_prio;
     40 	uint8_t lsi_mac[6];
     41 } __packed;
     42 
     43 struct lacp_portid {
     44 	uint16_t lpi_prio;
     45 	uint16_t lpi_portno;
     46 } __packed;
     47 
     48 struct 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 
     77 struct lacp_collectorinfo {
     78 	uint16_t lci_maxdelay;
     79 	uint8_t lci_resv[12];
     80 } __packed;
     81 
     82 struct 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