2 * Copyright (C) 2003 Yasuhiro Ohara
4 * This file is part of GNU Zebra.
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
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.
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.
25 #include "ospf6_top.h"
28 extern unsigned char conf_debug_ospf6_spf;
29 #define OSPF6_DEBUG_SPF_PROCESS 0x01
30 #define OSPF6_DEBUG_SPF_TIME 0x02
31 #define OSPF6_DEBUG_SPF_DATABASE 0x04
32 #define OSPF6_DEBUG_SPF_ON(level) \
33 (conf_debug_ospf6_spf |= (level))
34 #define OSPF6_DEBUG_SPF_OFF(level) \
35 (conf_debug_ospf6_spf &= ~(level))
36 #define IS_OSPF6_DEBUG_SPF(level) \
37 (conf_debug_ospf6_spf & OSPF6_DEBUG_SPF_ ## level)
42 /* type of this vertex */
45 /* Vertex Identifier */
46 struct prefix vertex_id;
48 /* Identifier String */
52 struct ospf6_area *area;
55 struct ospf6_lsa *lsa;
57 /* Distance from Root (i.e. Cost) */
60 /* Router hops to this node */
63 /* nexthops to this node */
64 struct ospf6_nexthop nexthop[OSPF6_MULTI_PATH_LIMIT];
69 /* Optional capabilities */
72 /* For tree display */
73 struct ospf6_vertex *parent;
74 struct list *child_list;
77 #define OSPF6_VERTEX_TYPE_ROUTER 0x01
78 #define OSPF6_VERTEX_TYPE_NETWORK 0x02
79 #define VERTEX_IS_TYPE(t, v) \
80 ((v)->type == OSPF6_VERTEX_TYPE_ ## t ? 1 : 0)
82 /* What triggered the SPF? */
83 #define OSPF6_SPF_FLAGS_ROUTER_LSA_ADDED (1 << 0)
84 #define OSPF6_SPF_FLAGS_ROUTER_LSA_REMOVED (1 << 1)
85 #define OSPF6_SPF_FLAGS_NETWORK_LSA_ADDED (1 << 2)
86 #define OSPF6_SPF_FLAGS_NETWORK_LSA_REMOVED (1 << 3)
87 #define OSPF6_SPF_FLAGS_LINK_LSA_ADDED (1 << 4)
88 #define OSPF6_SPF_FLAGS_LINK_LSA_REMOVED (1 << 5)
89 #define OSPF6_SPF_FLAGS_ROUTER_LSA_ORIGINATED (1 << 6)
90 #define OSPF6_SPF_FLAGS_NETWORK_LSA_ORIGINATED (1 << 7)
93 ospf6_set_spf_reason (struct ospf6* ospf, unsigned int reason)
95 ospf->spf_reason |= reason;
99 ospf6_reset_spf_reason (struct ospf6 *ospf)
101 ospf->spf_reason = 0;
104 static inline unsigned int
105 ospf6_lsadd_to_spf_reason (struct ospf6_lsa *lsa)
107 unsigned int reason = 0;
109 switch (ntohs (lsa->header->type))
111 case OSPF6_LSTYPE_ROUTER:
112 reason = OSPF6_SPF_FLAGS_ROUTER_LSA_ADDED;
114 case OSPF6_LSTYPE_NETWORK:
115 reason = OSPF6_SPF_FLAGS_NETWORK_LSA_ADDED;
117 case OSPF6_LSTYPE_LINK:
118 reason = OSPF6_SPF_FLAGS_LINK_LSA_ADDED;
126 static inline unsigned int
127 ospf6_lsremove_to_spf_reason (struct ospf6_lsa *lsa)
129 unsigned int reason = 0;
131 switch (ntohs (lsa->header->type))
133 case OSPF6_LSTYPE_ROUTER:
134 reason = OSPF6_SPF_FLAGS_ROUTER_LSA_REMOVED;
136 case OSPF6_LSTYPE_NETWORK:
137 reason = OSPF6_SPF_FLAGS_NETWORK_LSA_REMOVED;
139 case OSPF6_LSTYPE_LINK:
140 reason = OSPF6_SPF_FLAGS_LINK_LSA_REMOVED;
148 extern void ospf6_spf_table_finish (struct ospf6_route_table *result_table);
149 extern void ospf6_spf_calculation (u_int32_t router_id,
150 struct ospf6_route_table *result_table,
151 struct ospf6_area *oa);
152 extern void ospf6_spf_schedule (struct ospf6 *ospf, unsigned int reason);
154 extern void ospf6_spf_display_subtree (struct vty *vty, const char *prefix,
155 int rest, struct ospf6_vertex *v);
157 extern void ospf6_spf_config_write (struct vty *vty);
158 extern int config_write_ospf6_debug_spf (struct vty *vty);
159 extern void install_element_ospf6_debug_spf (void);
160 extern void ospf6_spf_init (void);
161 extern void ospf6_spf_reason_string (unsigned int reason, char *buf, int size);
163 #endif /* OSPF6_SPF_H */