1 /************************************************************************ 2 * RSTP library - Rapid Spanning Tree (802.1t, 802.1w) 3 * Copyright (C) 2001-2003 Optical Access 4 * Author: Alex Rozin 5 * 6 * This file is part of RSTP library. 7 * 8 * RSTP library is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU Lesser General Public License as published by the 10 * Free Software Foundation; version 2.1 11 * 12 * RSTP library is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public License 18 * along with RSTP library; see the file COPYING. If not, write to the Free 19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 20 * 02111-1307, USA. 21 **********************************************************************/ 22 23 /* STP PORT instance : 17.18, 17.15 */ 24 25 #ifndef _STP_PORT_H__ 26 #define _STP_PORT_H__ 27 28 #include "statmch.h" 29 30 #define TIMERS_NUMBER 9 31 typedef unsigned int PORT_TIMER_T; 32 33 typedef enum { 34 Mine, 35 Aged, 36 Received, 37 Disabled 38 } INFO_IS_T; 39 40 typedef enum { 41 SuperiorDesignateMsg, 42 RepeatedDesignateMsg, 43 ConfirmedRootMsg, 44 OtherMsg 45 } RCVD_MSG_T; 46 47 typedef enum { 48 DisabledPort = 0, 49 AlternatePort, 50 BackupPort, 51 RootPort, 52 DesignatedPort, 53 NonStpPort 54 } PORT_ROLE_T; 55 56 typedef struct port_t { 57 struct port_t* next; 58 59 /* per Port state machines */ 60 STATE_MACH_T* info; /* 17.21 */ 61 STATE_MACH_T* roletrns; /* 17.23 */ 62 STATE_MACH_T* sttrans; /* 17.24 */ 63 STATE_MACH_T* topoch; /* 17.25 */ 64 STATE_MACH_T* migrate; /* 17.26 */ 65 STATE_MACH_T* transmit; /* 17.26 */ 66 STATE_MACH_T* p2p; /* 6.4.3, 6.5.1 */ 67 STATE_MACH_T* edge; /* */ 68 STATE_MACH_T* pcost; /* */ 69 70 STATE_MACH_T* machines; /* list of machines */ 71 72 struct stpm_t* owner; /* Bridge, that this port belongs to */ 73 74 /* per port Timers */ 75 PORT_TIMER_T fdWhile; /* 17.15.1 */ 76 PORT_TIMER_T helloWhen; /* 17.15.2 */ 77 PORT_TIMER_T mdelayWhile; /* 17.15.3 */ 78 PORT_TIMER_T rbWhile; /* 17.15.4 */ 79 PORT_TIMER_T rcvdInfoWhile;/* 17.15.5 */ 80 PORT_TIMER_T rrWhile; /* 17.15.6 */ 81 PORT_TIMER_T tcWhile; /* 17.15.7 */ 82 PORT_TIMER_T txCount; /* 17.18.40 */ 83 PORT_TIMER_T lnkWhile; 84 85 PORT_TIMER_T* timers[TIMERS_NUMBER]; /*list of timers */ 86 87 Bool agreed; /* 17.18.1 */ 88 PRIO_VECTOR_T designPrio; /* 17.18.2 */ 89 TIMEVALUES_T designTimes; /* 17.18.3 */ 90 Bool forward; /* 17.18.4 */ 91 Bool forwarding; /* 17.18.5 */ 92 INFO_IS_T infoIs; /* 17.18.6 */ 93 Bool initPm; /* 17.18.7 */ 94 Bool learn; /* 17.18.8 */ 95 Bool learning; /* 17.18.9 */ 96 Bool mcheck; /* 17.18.10 */ 97 PRIO_VECTOR_T msgPrio; /* 17.18.11 */ 98 TIMEVALUES_T msgTimes; /* 17.18.12 */ 99 Bool newInfo; /* 17.18.13 */ 100 Bool operEdge; /* 17.18.14 */ 101 Bool adminEdge; /* 17.18.14 */ 102 Bool portEnabled; /* 17.18.15 */ 103 PORT_ID port_id; /* 17.18.16 */ 104 PRIO_VECTOR_T portPrio; /* 17.18.17 */ 105 TIMEVALUES_T portTimes; /* 17.18.18 */ 106 Bool proposed; /* 17.18.19 */ 107 Bool proposing; /* 17.18.20 */ 108 Bool rcvdBpdu; /* 17.18.21 */ 109 RCVD_MSG_T rcvdMsg; /* 17.18.22 */ 110 Bool rcvdRSTP; /* 17/18.23 */ 111 Bool rcvdSTP; /* 17.18.24 */ 112 Bool rcvdTc; /* 17.18.25 */ 113 Bool rcvdTcAck; /* 17.18.26 */ 114 Bool rcvdTcn; /* 17.18.27 */ 115 Bool reRoot; /* 17.18.28 */ 116 Bool reselect; /* 17.18.29 */ 117 PORT_ROLE_T role; /* 17.18.30 */ 118 Bool selected; /* 17.18.31 */ 119 PORT_ROLE_T selectedRole; /* 17.18.32 */ 120 Bool sendRSTP; /* 17.18.33 */ 121 Bool sync; /* 17.18.34 */ 122 Bool synced; /* 17.18.35 */ 123 Bool tc; /* 17.18.36 */ 124 Bool tcAck; /* 17.18.37 */ 125 Bool tcProp; /* 17.18.38 */ 126 127 Bool updtInfo; /* 17.18.41 */ 128 129 /* message information */ 130 unsigned char msgBpduVersion; 131 unsigned char msgBpduType; 132 unsigned char msgPortRole; 133 unsigned char msgFlags; 134 135 unsigned long adminPCost; /* may be ADMIN_PORT_PATH_COST_AUTO */ 136 unsigned long operPCost; 137 unsigned long operSpeed; 138 unsigned long usedSpeed; 139 int LinkDelay; /* TBD: LinkDelay may be managed ? */ 140 Bool adminEnable; /* 'has LINK' */ 141 Bool wasInitBpdu; 142 Bool admin_non_stp; 143 144 Bool p2p_recompute; 145 Bool operPointToPointMac; 146 ADMIN_P2P_T adminPointToPointMac; 147 148 /* statistics */ 149 unsigned long rx_cfg_bpdu_cnt; 150 unsigned long rx_rstp_bpdu_cnt; 151 unsigned long rx_tcn_bpdu_cnt; 152 153 unsigned long uptime; /* 14.8.2.1.3.a */ 154 155 int port_index; 156 char* port_name; 157 158 #ifdef STP_DBG 159 unsigned int skip_rx; 160 unsigned int skip_tx; 161 #endif 162 } PORT_T; 163 164 PORT_T* 165 STP_port_create (struct stpm_t* stpm, int port_index); 166 167 void 168 STP_port_delete (PORT_T* this); 169 170 int 171 STP_port_rx_bpdu (PORT_T* this, BPDU_T* bpdu, size_t len); 172 173 void 174 STP_port_init (PORT_T* this, struct stpm_t* stpm, Bool check_link); 175 176 #ifdef STP_DBG 177 int 178 STP_port_trace_state_machine (PORT_T* this, char* mach_name, int enadis); 179 180 void 181 STP_port_trace_flags (char* title, PORT_T* this); 182 #endif 183 184 #endif /* _STP_PORT_H__ */ 185 186