summaryrefslogtreecommitdiffstats
path: root/ospf6d/ospf6_area.h
blob: 8a58b2a50ed571da8dc46e6f8dc7e4e75b4d2107 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/*
 * Copyright (C) 2003 Yasuhiro Ohara
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * GNU Zebra 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef OSPF_AREA_H
#define OSPF_AREA_H

#include "ospf6_top.h"
#include "lib/json.h"

struct ospf6_area {
	/* Reference to Top data structure */
	struct ospf6 *ospf6;

	/* Area-ID */
	in_addr_t area_id;

#define OSPF6_AREA_FMT_DOTTEDQUAD 1
#define OSPF6_AREA_FMT_DECIMAL    2
	/* Area-ID string */
	char name[16];

	/* flag */
	uint8_t flag;

	/* OSPF Option */
	uint8_t options[3];

	/* Summary routes to be originated (includes Configured Address Ranges)
	 */
	struct ospf6_route_table *range_table;
	struct ospf6_route_table *summary_prefix;
	struct ospf6_route_table *summary_router;

	/* Area type */
	int no_summary;

	/* Brouter traversal protection */
	int intra_brouter_calc;

	/* OSPF interface list */
	struct list *if_list;

	struct ospf6_lsdb *lsdb;
	struct ospf6_lsdb *lsdb_self;
	struct ospf6_lsdb *temp_router_lsa_lsdb;

	struct ospf6_route_table *spf_table;
	struct ospf6_route_table *route_table;

	uint32_t spf_calculation; /* SPF calculation count */

	struct thread *thread_router_lsa;
	struct thread *thread_intra_prefix_lsa;
	uint32_t router_lsa_size_limit;

	/* Area announce list */
	struct {
		char *name;
		struct access_list *list;
	} _export;
#define EXPORT_NAME(A)  (A)->_export.name
#define EXPORT_LIST(A)  (A)->_export.list

	/* Area acceptance list */
	struct {
		char *name;
		struct access_list *list;
	} import;
#define IMPORT_NAME(A)  (A)->import.name
#define IMPORT_LIST(A)  (A)->import.list

	/* Type 3 LSA Area prefix-list */
	struct {
		char *name;
		struct prefix_list *list;
	} plist_in;
#define PREFIX_NAME_IN(A)  (A)->plist_in.name
#define PREFIX_LIST_IN(A)  (A)->plist_in.list

	struct {
		char *name;
		struct prefix_list *list;
	} plist_out;
#define PREFIX_NAME_OUT(A)  (A)->plist_out.name
#define PREFIX_LIST_OUT(A)  (A)->plist_out.list

	/* Time stamps. */
	struct timeval ts_spf; /* SPF calculation time stamp. */

	uint32_t full_nbrs; /* Fully adjacent neighbors. */
	uint8_t intra_prefix_originate; /* Force intra_prefix lsa originate */
};

#define OSPF6_AREA_ENABLE     0x01
#define OSPF6_AREA_ACTIVE     0x02
#define OSPF6_AREA_TRANSIT    0x04 /* TransitCapability */
#define OSPF6_AREA_STUB       0x08

#define IS_AREA_ENABLED(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ENABLE))
#define IS_AREA_ACTIVE(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_ACTIVE))
#define IS_AREA_TRANSIT(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_TRANSIT))
#define IS_AREA_STUB(oa) (CHECK_FLAG ((oa)->flag, OSPF6_AREA_STUB))

#define OSPF6_CMD_AREA_GET(str, oa, ospf6)                                     \
	{                                                                      \
		char *ep;                                                      \
		uint32_t area_id = htonl(strtoul(str, &ep, 10));               \
		if (*ep && inet_pton(AF_INET, str, &area_id) != 1) {           \
			vty_out(vty, "Malformed Area-ID: %s\n", str);          \
			return CMD_SUCCESS;                                    \
		}                                                              \
		int format = !*ep ? OSPF6_AREA_FMT_DECIMAL                     \
				  : OSPF6_AREA_FMT_DOTTEDQUAD;                 \
		oa = ospf6_area_lookup(area_id, ospf6);                        \
		if (oa == NULL)                                                \
			oa = ospf6_area_create(area_id, ospf6, format);        \
	}

/* prototypes */
extern int ospf6_area_cmp(void *va, void *vb);

extern struct ospf6_area *ospf6_area_create(uint32_t, struct ospf6 *, int);
extern void ospf6_area_delete(struct ospf6_area *);
extern struct ospf6_area *ospf6_area_lookup(uint32_t, struct ospf6 *);
extern struct ospf6_area *ospf6_area_lookup_by_area_id(uint32_t area_id);

extern void ospf6_area_enable(struct ospf6_area *);
extern void ospf6_area_disable(struct ospf6_area *);

extern void ospf6_area_show(struct vty *, struct ospf6_area *,
			    json_object *json_areas, bool use_json);

extern void ospf6_area_plist_update(struct prefix_list *plist, int add);
extern void ospf6_area_config_write(struct vty *vty, struct ospf6 *ospf6);
extern void ospf6_area_init(void);
struct ospf6_interface;
extern void ospf6_area_interface_delete(struct ospf6_interface *oi);

#endif /* OSPF_AREA_H */