1/*
2 * Copyright (C) 2003 Yasuhiro Ohara
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with GNU Zebra; see the file COPYING.  If not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
20 */
21
22#ifndef OSPF6_INTERFACE_H
23#define OSPF6_INTERFACE_H
24
25#include "if.h"
26
27/* Debug option */
28extern unsigned char conf_debug_ospf6_interface;
29#define OSPF6_DEBUG_INTERFACE_ON() \
30  (conf_debug_ospf6_interface = 1)
31#define OSPF6_DEBUG_INTERFACE_OFF() \
32  (conf_debug_ospf6_interface = 0)
33#define IS_OSPF6_DEBUG_INTERFACE \
34  (conf_debug_ospf6_interface)
35
36/* Interface structure */
37struct ospf6_interface
38{
39  /* IF info from zebra */
40  struct interface *interface;
41
42  /* back pointer */
43  struct ospf6_area *area;
44
45  /* list of ospf6 neighbor */
46  struct list *neighbor_list;
47
48  /* linklocal address of this I/F */
49  struct in6_addr *linklocal_addr;
50
51  /* Interface ID; use interface->ifindex */
52
53  /* ospf6 instance id */
54  u_char instance_id;
55
56  /* I/F transmission delay */
57  u_int32_t transdelay;
58
59  /* Network Type */
60  u_char type;
61
62  /* Router Priority */
63  u_char priority;
64
65  /* Time Interval */
66  u_int16_t hello_interval;
67  u_int16_t dead_interval;
68  u_int32_t rxmt_interval;
69
70  u_int32_t state_change;
71
72  /* Cost */
73  u_int32_t cost;
74
75  /* I/F MTU */
76  u_int32_t ifmtu;
77
78  /* Interface State */
79  u_char state;
80
81  /* OSPF6 Interface flag */
82  char flag;
83
84  /* MTU mismatch check */
85  u_char mtu_ignore;
86
87  /* Decision of DR Election */
88  u_int32_t drouter;
89  u_int32_t bdrouter;
90  u_int32_t prev_drouter;
91  u_int32_t prev_bdrouter;
92
93  /* Linklocal LSA Database: includes Link-LSA */
94  struct ospf6_lsdb *lsdb;
95  struct ospf6_lsdb *lsdb_self;
96
97  struct ospf6_lsdb *lsupdate_list;
98  struct ospf6_lsdb *lsack_list;
99
100  /* Ongoing Tasks */
101  struct thread *thread_send_hello;
102  struct thread *thread_send_lsupdate;
103  struct thread *thread_send_lsack;
104
105  struct thread *thread_network_lsa;
106  struct thread *thread_link_lsa;
107  struct thread *thread_intra_prefix_lsa;
108
109  struct ospf6_route_table *route_connected;
110
111  /* prefix-list name to filter connected prefix */
112  char *plist_name;
113};
114
115/* interface state */
116#define OSPF6_INTERFACE_NONE             0
117#define OSPF6_INTERFACE_DOWN             1
118#define OSPF6_INTERFACE_LOOPBACK         2
119#define OSPF6_INTERFACE_WAITING          3
120#define OSPF6_INTERFACE_POINTTOPOINT     4
121#define OSPF6_INTERFACE_DROTHER          5
122#define OSPF6_INTERFACE_BDR              6
123#define OSPF6_INTERFACE_DR               7
124#define OSPF6_INTERFACE_MAX              8
125
126extern const char *ospf6_interface_state_str[];
127
128/* flags */
129#define OSPF6_INTERFACE_DISABLE      0x01
130#define OSPF6_INTERFACE_PASSIVE      0x02
131#define OSPF6_INTERFACE_NOAUTOCOST   0x04
132
133/* default values */
134#define OSPF6_INTERFACE_HELLO_INTERVAL 10
135#define OSPF6_INTERFACE_DEAD_INTERVAL  40
136#define OSPF6_INTERFACE_RXMT_INTERVAL  5
137#define OSPF6_INTERFACE_COST           1
138#define OSPF6_INTERFACE_PRIORITY       1
139#define OSPF6_INTERFACE_TRANSDELAY     1
140#define OSPF6_INTERFACE_INSTANCE_ID    0
141#define OSPF6_INTERFACE_BANDWIDTH      10000   /* Kbps */
142#define OSPF6_REFERENCE_BANDWIDTH      100000  /* Kbps */
143
144
145
146/* Function Prototypes */
147
148extern struct ospf6_interface *ospf6_interface_lookup_by_ifindex (int);
149extern struct ospf6_interface *ospf6_interface_create (struct interface *);
150extern void ospf6_interface_delete (struct ospf6_interface *);
151
152extern void ospf6_interface_enable (struct ospf6_interface *);
153extern void ospf6_interface_disable (struct ospf6_interface *);
154
155extern void ospf6_interface_if_add (struct interface *);
156extern void ospf6_interface_if_del (struct interface *);
157extern void ospf6_interface_state_update (struct interface *);
158extern void ospf6_interface_connected_route_update (struct interface *);
159
160/* interface event */
161extern int interface_up (struct thread *);
162extern int interface_down (struct thread *);
163extern int wait_timer (struct thread *);
164extern int backup_seen (struct thread *);
165extern int neighbor_change (struct thread *);
166
167extern void ospf6_interface_init (void);
168
169extern int config_write_ospf6_debug_interface (struct vty *vty);
170extern void install_element_ospf6_debug_interface (void);
171
172#endif /* OSPF6_INTERFACE_H */
173