473 lines
14 KiB
C
473 lines
14 KiB
C
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/*
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* Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* lacp.h
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* - definitions for the Link Aggregation Control Protocol (LACP) and
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* the Link Aggregation Marker Protocol
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*/
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/*
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* Modification History
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*
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* May 14, 2004 Dieter Siegmund (dieter@apple.com)
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* - created
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*/
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#ifndef _NET_LACP_H_
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#define _NET_LACP_H_
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#include <sys/types.h>
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#include <string.h>
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/**
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** Link Aggregation Control Protocol (LACP) definitions
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**/
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#define LACPDU_VERSION_1 1
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#define LACPDU_TLV_TYPE_TERMINATOR 0x00
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#define LACPDU_TLV_TYPE_ACTOR 0x01
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#define LACPDU_TLV_TYPE_PARTNER 0x02
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#define LACPDU_TLV_TYPE_COLLECTOR 0x03
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#define LACPDU_ACTOR_TLV_LENGTH 20
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#define LACPDU_PARTNER_TLV_LENGTH 20
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#define LACPDU_COLLECTOR_TLV_LENGTH 16
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typedef u_char lacp_actor_partner_state;
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typedef u_int16_t lacp_key;
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typedef u_int16_t lacp_system_priority, lacp_port_priority, lacp_port;
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typedef u_int16_t lacp_collector_max_delay;
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typedef struct {
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u_char system_id[6];
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} lacp_system, *lacp_system_ref;
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/*
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* LACP Actor/Partner TLV
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*/
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typedef struct lacp_actor_partner_tlv_s {
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u_char lap_tlv_type; /* 0x01 or 0x02 */
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u_char lap_length; /* 20 */
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u_char lap_system_priority[2];
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u_char lap_system[6];
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u_char lap_key[2];
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u_char lap_port_priority[2];
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u_char lap_port[2];
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u_char lap_state;
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u_char lap_reserved[3];
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} lacp_actor_partner_tlv, *lacp_actor_partner_tlv_ref;
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/*
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* LACP Collector TLV
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*/
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typedef struct lacp_collector_tlv_s {
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u_char lac_tlv_type; /* 0x03 */
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u_char lac_length; /* 16 */
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u_char lac_max_delay[2];
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u_char lac_reserved[12];
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} lacp_collector_tlv, *lacp_collector_tlv_ref;
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/*
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* LACP Actor/Partner State bits
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*/
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#define LACP_ACTOR_PARTNER_STATE_LACP_ACTIVITY 0x01
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#define LACP_ACTOR_PARTNER_STATE_LACP_TIMEOUT 0x02
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#define LACP_ACTOR_PARTNER_STATE_AGGREGATION 0x04
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#define LACP_ACTOR_PARTNER_STATE_SYNCHRONIZATION 0x08
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#define LACP_ACTOR_PARTNER_STATE_COLLECTING 0x10
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#define LACP_ACTOR_PARTNER_STATE_DISTRIBUTING 0x20
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#define LACP_ACTOR_PARTNER_STATE_DEFAULTED 0x40
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#define LACP_ACTOR_PARTNER_STATE_EXPIRED 0x80
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_active_lacp(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_LACP_ACTIVITY;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_passive_lacp(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_LACP_ACTIVITY;
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}
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static __inline__ int
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lacp_actor_partner_state_active_lacp(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_LACP_ACTIVITY) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_short_timeout(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_LACP_TIMEOUT;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_long_timeout(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_LACP_TIMEOUT;
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}
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static __inline__ int
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lacp_actor_partner_state_short_timeout(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_LACP_TIMEOUT) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_aggregatable(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_AGGREGATION;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_individual(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_AGGREGATION;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_aggregatable(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_AGGREGATION) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_in_sync(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_SYNCHRONIZATION;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_out_of_sync(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_SYNCHRONIZATION;
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}
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static __inline__ int
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lacp_actor_partner_state_in_sync(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_SYNCHRONIZATION) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_collecting(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_COLLECTING;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_not_collecting(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_COLLECTING;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_collecting(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_COLLECTING) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_distributing(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_DISTRIBUTING;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_not_distributing(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_DISTRIBUTING;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_distributing(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_DISTRIBUTING) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_defaulted(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_DEFAULTED;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_not_defaulted(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_DEFAULTED;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_defaulted(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_DEFAULTED) != 0;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_expired(lacp_actor_partner_state state)
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{
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return state | LACP_ACTOR_PARTNER_STATE_EXPIRED;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_set_not_expired(lacp_actor_partner_state state)
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{
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return state & ~LACP_ACTOR_PARTNER_STATE_EXPIRED;
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}
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static __inline__ lacp_actor_partner_state
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lacp_actor_partner_state_expired(lacp_actor_partner_state state)
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{
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return (state & LACP_ACTOR_PARTNER_STATE_EXPIRED) != 0;
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}
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/*
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* Function: lacp_uint16_set
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* Purpose:
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* Set a field in a structure that's at least 16 bits to the given
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* value, putting it into network byte order
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*/
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static __inline__ void
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lacp_uint16_set(uint8_t * field, uint16_t value)
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{
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uint16_t tmp_value = htons(value);
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memcpy((void *)field, (void *)&tmp_value, sizeof(uint16_t));
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return;
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}
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/*
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* Function: lacp_uint16_get
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* Purpose:
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* Get a field in a structure that's at least 16 bits, converting
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* to host byte order.
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*/
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static __inline__ uint16_t
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lacp_uint16_get(const uint8_t * field)
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{
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uint16_t tmp_field;
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memcpy((void *)&tmp_field, (const void *)field, sizeof(uint16_t));
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return ntohs(tmp_field);
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}
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/*
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* Function: lacp_uint32_set
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* Purpose:
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* Set a field in a structure that's at least 32 bits to the given
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* value, putting it into network byte order
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*/
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static __inline__ void
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lacp_uint32_set(uint8_t * field, uint32_t value)
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{
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uint32_t tmp_value = htonl(value);
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memcpy((void *)field, (void *)&tmp_value, sizeof(uint32_t));
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return;
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}
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/*
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* Function: lacp_uint32_get
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* Purpose:
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* Get a field in a structure that's at least 32 bits, converting
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* to host byte order.
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*/
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static __inline__ uint32_t
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lacp_uint32_get(const uint8_t * field)
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{
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uint32_t tmp_field;
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memcpy((void *)&tmp_field, (const void *)field, sizeof(uint32_t));
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return ntohl(tmp_field);
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}
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/*
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* LACP Actor/Partner TLV access functions
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*/
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static __inline__ void
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lacp_actor_partner_tlv_set_system_priority(lacp_actor_partner_tlv_ref tlv,
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lacp_system_priority system_priority)
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{
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lacp_uint16_set(tlv->lap_system_priority, system_priority);
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return;
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}
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static __inline__ lacp_system_priority
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lacp_actor_partner_tlv_get_system_priority(const lacp_actor_partner_tlv_ref tlv)
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{
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return (lacp_system_priority)lacp_uint16_get(tlv->lap_system_priority);
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}
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static __inline__ void
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lacp_actor_partner_tlv_set_key(lacp_actor_partner_tlv_ref tlv, lacp_key key)
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{
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lacp_uint16_set(tlv->lap_key, key);
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return;
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}
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static __inline__ lacp_key
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lacp_actor_partner_tlv_get_key(const lacp_actor_partner_tlv_ref tlv)
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{
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return (lacp_key)lacp_uint16_get(tlv->lap_key);
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}
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static __inline__ void
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lacp_actor_partner_tlv_set_port_priority(lacp_actor_partner_tlv_ref tlv,
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lacp_port_priority port_priority)
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{
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lacp_uint16_set(tlv->lap_port_priority, port_priority);
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return;
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}
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static __inline__ lacp_port_priority
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lacp_actor_partner_tlv_get_port_priority(const lacp_actor_partner_tlv_ref tlv)
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{
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return (lacp_port_priority)lacp_uint16_get(tlv->lap_port_priority);
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}
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static __inline__ void
|
||
|
|
lacp_actor_partner_tlv_set_port(lacp_actor_partner_tlv_ref tlv, lacp_port port)
|
||
|
|
{
|
||
|
|
lacp_uint16_set(tlv->lap_port, port);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ lacp_port
|
||
|
|
lacp_actor_partner_tlv_get_port(const lacp_actor_partner_tlv_ref tlv)
|
||
|
|
{
|
||
|
|
return (lacp_port)lacp_uint16_get(tlv->lap_port);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* LACP Collector TLV access functions
|
||
|
|
*/
|
||
|
|
static __inline__ void
|
||
|
|
lacp_collector_tlv_set_max_delay(lacp_collector_tlv_ref tlv,
|
||
|
|
lacp_collector_max_delay delay)
|
||
|
|
{
|
||
|
|
lacp_uint16_set(tlv->lac_max_delay, delay);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ lacp_collector_max_delay
|
||
|
|
lacp_collector_tlv_get_max_delay(const lacp_collector_tlv_ref tlv)
|
||
|
|
{
|
||
|
|
return (lacp_collector_max_delay)lacp_uint16_get(tlv->lac_max_delay);
|
||
|
|
}
|
||
|
|
|
||
|
|
typedef struct lacpdu_s {
|
||
|
|
u_char la_subtype;
|
||
|
|
u_char la_version;
|
||
|
|
u_char la_actor_tlv[LACPDU_ACTOR_TLV_LENGTH];
|
||
|
|
u_char la_partner_tlv[LACPDU_PARTNER_TLV_LENGTH];
|
||
|
|
u_char la_collector_tlv[LACPDU_COLLECTOR_TLV_LENGTH];
|
||
|
|
u_char la_terminator_type;
|
||
|
|
u_char la_terminator_length;
|
||
|
|
u_char la_reserved[50];
|
||
|
|
} lacpdu, *lacpdu_ref;
|
||
|
|
|
||
|
|
/* timer values in seconds */
|
||
|
|
#define LACP_FAST_PERIODIC_TIME 1
|
||
|
|
#define LACP_SLOW_PERIODIC_TIME 30
|
||
|
|
#define LACP_SHORT_TIMEOUT_TIME 3
|
||
|
|
#define LACP_LONG_TIMEOUT_TIME 90
|
||
|
|
#define LACP_CHURN_DETECTION_TIME 60
|
||
|
|
#define LACP_AGGREGATE_WAIT_TIME 2
|
||
|
|
|
||
|
|
/* packet rate per second */
|
||
|
|
#define LACP_PACKET_RATE 3
|
||
|
|
|
||
|
|
/**
|
||
|
|
** Link Aggregation Marker Protocol definitions
|
||
|
|
**/
|
||
|
|
#define LA_MARKER_PDU_VERSION_1 1
|
||
|
|
#define LA_MARKER_TLV_TYPE_TERMINATOR 0x00
|
||
|
|
#define LA_MARKER_TLV_TYPE_MARKER 0x01
|
||
|
|
#define LA_MARKER_TLV_TYPE_MARKER_RESPONSE 0x02
|
||
|
|
|
||
|
|
#define LA_MARKER_TLV_LENGTH 16
|
||
|
|
#define LA_MARKER_RESPONSE_TLV_LENGTH 16
|
||
|
|
|
||
|
|
typedef u_int32_t la_marker_transaction_id;
|
||
|
|
|
||
|
|
typedef struct la_marker_pdu_s {
|
||
|
|
u_char lm_subtype; /* 0x02 */
|
||
|
|
u_char lm_version; /* 0x01 */
|
||
|
|
u_char lm_marker_tlv_type; /* 0x01 or 0x02 */
|
||
|
|
u_char lm_marker_tlv_length;/* 16 */
|
||
|
|
u_char lm_requestor_port[2];
|
||
|
|
u_char lm_requestor_system[6];
|
||
|
|
u_char lm_requestor_transaction_id[4];
|
||
|
|
u_char lm_pad[2];
|
||
|
|
u_char lm_terminator_type; /* 0x00 */
|
||
|
|
u_char lm_terminator_length;/* 0 */
|
||
|
|
u_char lm_reserved[90];
|
||
|
|
} la_marker_pdu, *la_marker_pdu_ref,
|
||
|
|
la_marker_response_pdu, * la_marker_response_pdu_ref;
|
||
|
|
|
||
|
|
static __inline__ void
|
||
|
|
la_marker_pdu_set_requestor_port(la_marker_pdu_ref lmpdu, lacp_port port)
|
||
|
|
{
|
||
|
|
lacp_uint16_set(lmpdu->lm_requestor_port, port);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ lacp_port
|
||
|
|
la_marker_pdu_get_requestor_port(la_marker_pdu_ref lmpdu)
|
||
|
|
{
|
||
|
|
return (lacp_port)lacp_uint16_get(lmpdu->lm_requestor_port);
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ void
|
||
|
|
la_marker_pdu_set_requestor_transaction_id(la_marker_pdu_ref lmpdu,
|
||
|
|
la_marker_transaction_id xid)
|
||
|
|
{
|
||
|
|
lacp_uint32_set(lmpdu->lm_requestor_transaction_id, xid);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ la_marker_transaction_id
|
||
|
|
la_marker_pdu_get_requestor_transaction_id(la_marker_pdu_ref lmpdu)
|
||
|
|
{
|
||
|
|
return (la_marker_transaction_id)lacp_uint32_get(lmpdu->lm_requestor_transaction_id);
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ void
|
||
|
|
la_marker_pdu_set_requestor_system(la_marker_pdu_ref lmpdu, lacp_system sys)
|
||
|
|
{
|
||
|
|
*((lacp_system_ref)lmpdu->lm_requestor_system) = sys;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __inline__ lacp_system
|
||
|
|
la_marker_pdu_get_requestor_system(la_marker_pdu_ref lmpdu)
|
||
|
|
{
|
||
|
|
return *(lacp_system_ref)(lmpdu->lm_requestor_system);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* _NET_LACP_H_ */
|