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/************************************************************************
* RSTP library - Rapid Spanning Tree (802.1t, 802.1w)
* Copyright (C) 2001-2003 Optical Access
* Author: Alex Rozin
*
* This file is part of RSTP library.
*
* RSTP library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; version 2.1
*
* RSTP library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with RSTP library; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
**********************************************************************/
/* STP PORT instance : 17.18, 17.15 */
#ifndef _STP_PORT_H__
#define _STP_PORT_H__
#include "statmch.h"
#define TIMERS_NUMBER 9
typedef unsigned int PORT_TIMER_T;
typedef enum {
Mine,
Aged,
Received,
Disabled
} INFO_IS_T;
typedef enum {
SuperiorDesignateMsg,
RepeatedDesignateMsg,
ConfirmedRootMsg,
OtherMsg
} RCVD_MSG_T;
typedef enum {
DisabledPort = 0,
AlternatePort,
BackupPort,
RootPort,
DesignatedPort,
NonStpPort
} PORT_ROLE_T;
typedef struct port_t {
struct port_t* next;
/* per Port state machines */
STATE_MACH_T* info; /* 17.21 */
STATE_MACH_T* roletrns; /* 17.23 */
STATE_MACH_T* sttrans; /* 17.24 */
STATE_MACH_T* topoch; /* 17.25 */
STATE_MACH_T* migrate; /* 17.26 */
STATE_MACH_T* transmit; /* 17.26 */
STATE_MACH_T* p2p; /* 6.4.3, 6.5.1 */
STATE_MACH_T* edge; /* */
STATE_MACH_T* pcost; /* */
STATE_MACH_T* machines; /* list of machines */
struct stpm_t* owner; /* Bridge, that this port belongs to */
/* per port Timers */
PORT_TIMER_T fdWhile; /* 17.15.1 */
PORT_TIMER_T helloWhen; /* 17.15.2 */
PORT_TIMER_T mdelayWhile; /* 17.15.3 */
PORT_TIMER_T rbWhile; /* 17.15.4 */
PORT_TIMER_T rcvdInfoWhile;/* 17.15.5 */
PORT_TIMER_T rrWhile; /* 17.15.6 */
PORT_TIMER_T tcWhile; /* 17.15.7 */
PORT_TIMER_T txCount; /* 17.18.40 */
PORT_TIMER_T lnkWhile;
PORT_TIMER_T* timers[TIMERS_NUMBER]; /*list of timers */
Bool agreed; /* 17.18.1 */
PRIO_VECTOR_T designPrio; /* 17.18.2 */
TIMEVALUES_T designTimes; /* 17.18.3 */
Bool forward; /* 17.18.4 */
Bool forwarding; /* 17.18.5 */
INFO_IS_T infoIs; /* 17.18.6 */
Bool initPm; /* 17.18.7 */
Bool learn; /* 17.18.8 */
Bool learning; /* 17.18.9 */
Bool mcheck; /* 17.18.10 */
PRIO_VECTOR_T msgPrio; /* 17.18.11 */
TIMEVALUES_T msgTimes; /* 17.18.12 */
Bool newInfo; /* 17.18.13 */
Bool operEdge; /* 17.18.14 */
Bool adminEdge; /* 17.18.14 */
Bool portEnabled; /* 17.18.15 */
PORT_ID port_id; /* 17.18.16 */
PRIO_VECTOR_T portPrio; /* 17.18.17 */
TIMEVALUES_T portTimes; /* 17.18.18 */
Bool proposed; /* 17.18.19 */
Bool proposing; /* 17.18.20 */
Bool rcvdBpdu; /* 17.18.21 */
RCVD_MSG_T rcvdMsg; /* 17.18.22 */
Bool rcvdRSTP; /* 17/18.23 */
Bool rcvdSTP; /* 17.18.24 */
Bool rcvdTc; /* 17.18.25 */
Bool rcvdTcAck; /* 17.18.26 */
Bool rcvdTcn; /* 17.18.27 */
Bool reRoot; /* 17.18.28 */
Bool reselect; /* 17.18.29 */
PORT_ROLE_T role; /* 17.18.30 */
Bool selected; /* 17.18.31 */
PORT_ROLE_T selectedRole; /* 17.18.32 */
Bool sendRSTP; /* 17.18.33 */
Bool sync; /* 17.18.34 */
Bool synced; /* 17.18.35 */
Bool tc; /* 17.18.36 */
Bool tcAck; /* 17.18.37 */
Bool tcProp; /* 17.18.38 */
Bool updtInfo; /* 17.18.41 */
/* message information */
unsigned char msgBpduVersion;
unsigned char msgBpduType;
unsigned char msgPortRole;
unsigned char msgFlags;
unsigned long adminPCost; /* may be ADMIN_PORT_PATH_COST_AUTO */
unsigned long operPCost;
unsigned long operSpeed;
unsigned long usedSpeed;
int LinkDelay; /* TBD: LinkDelay may be managed ? */
Bool adminEnable; /* 'has LINK' */
Bool wasInitBpdu;
Bool admin_non_stp;
Bool p2p_recompute;
Bool operPointToPointMac;
ADMIN_P2P_T adminPointToPointMac;
/* statistics */
unsigned long rx_cfg_bpdu_cnt;
unsigned long rx_rstp_bpdu_cnt;
unsigned long rx_tcn_bpdu_cnt;
unsigned long uptime; /* 14.8.2.1.3.a */
int port_index;
char* port_name;
#ifdef STP_DBG
unsigned int skip_rx;
unsigned int skip_tx;
#endif
} PORT_T;
PORT_T*
STP_port_create (struct stpm_t* stpm, int port_index);
void
STP_port_delete (PORT_T* this);
int
STP_port_rx_bpdu (PORT_T* this, BPDU_T* bpdu, size_t len);
void
STP_port_init (PORT_T* this, struct stpm_t* stpm, Bool check_link);
#ifdef STP_DBG
int
STP_port_trace_state_machine (PORT_T* this, char* mach_name, int enadis);
void
STP_port_trace_flags (char* title, PORT_T* this);
#endif
#endif /* _STP_PORT_H__ */
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