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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, int vlan_id); | |
179 | ||
180 | void | |
181 | STP_port_trace_flags (char* title, PORT_T* this); | |
182 | #endif | |
183 | ||
184 | #endif /* _STP_PORT_H__ */ | |
185 |