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 along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "ospf6_top.h"
27 extern unsigned char conf_debug_ospf6_spf
;
28 #define OSPF6_DEBUG_SPF_PROCESS 0x01
29 #define OSPF6_DEBUG_SPF_TIME 0x02
30 #define OSPF6_DEBUG_SPF_DATABASE 0x04
31 #define OSPF6_DEBUG_SPF_ON(level) (conf_debug_ospf6_spf |= (level))
32 #define OSPF6_DEBUG_SPF_OFF(level) (conf_debug_ospf6_spf &= ~(level))
33 #define IS_OSPF6_DEBUG_SPF(level) \
34 (conf_debug_ospf6_spf & OSPF6_DEBUG_SPF_##level)
38 /* type of this vertex */
41 /* Vertex Identifier */
42 struct prefix vertex_id
;
44 /* Identifier String */
48 struct ospf6_area
*area
;
51 struct ospf6_lsa
*lsa
;
53 /* Distance from Root (i.e. Cost) */
56 /* Router hops to this node */
62 /* Optional capabilities */
65 /* For tree display */
66 struct ospf6_vertex
*parent
;
67 struct list
*child_list
;
69 /* nexthops to this node */
74 #define OSPF6_VERTEX_TYPE_ROUTER 0x01
75 #define OSPF6_VERTEX_TYPE_NETWORK 0x02
76 #define VERTEX_IS_TYPE(t, v) ((v)->type == OSPF6_VERTEX_TYPE_##t ? 1 : 0)
78 /* What triggered the SPF? */
79 #define OSPF6_SPF_FLAGS_ROUTER_LSA_ADDED (1 << 0)
80 #define OSPF6_SPF_FLAGS_ROUTER_LSA_REMOVED (1 << 1)
81 #define OSPF6_SPF_FLAGS_NETWORK_LSA_ADDED (1 << 2)
82 #define OSPF6_SPF_FLAGS_NETWORK_LSA_REMOVED (1 << 3)
83 #define OSPF6_SPF_FLAGS_LINK_LSA_ADDED (1 << 4)
84 #define OSPF6_SPF_FLAGS_LINK_LSA_REMOVED (1 << 5)
85 #define OSPF6_SPF_FLAGS_ROUTER_LSA_ORIGINATED (1 << 6)
86 #define OSPF6_SPF_FLAGS_NETWORK_LSA_ORIGINATED (1 << 7)
88 static inline void ospf6_set_spf_reason(struct ospf6
*ospf
, unsigned int reason
)
90 ospf
->spf_reason
|= reason
;
93 static inline void ospf6_reset_spf_reason(struct ospf6
*ospf
)
98 static inline unsigned int ospf6_lsadd_to_spf_reason(struct ospf6_lsa
*lsa
)
100 unsigned int reason
= 0;
102 switch (ntohs(lsa
->header
->type
)) {
103 case OSPF6_LSTYPE_ROUTER
:
104 reason
= OSPF6_SPF_FLAGS_ROUTER_LSA_ADDED
;
106 case OSPF6_LSTYPE_NETWORK
:
107 reason
= OSPF6_SPF_FLAGS_NETWORK_LSA_ADDED
;
109 case OSPF6_LSTYPE_LINK
:
110 reason
= OSPF6_SPF_FLAGS_LINK_LSA_ADDED
;
118 static inline unsigned int ospf6_lsremove_to_spf_reason(struct ospf6_lsa
*lsa
)
120 unsigned int reason
= 0;
122 switch (ntohs(lsa
->header
->type
)) {
123 case OSPF6_LSTYPE_ROUTER
:
124 reason
= OSPF6_SPF_FLAGS_ROUTER_LSA_REMOVED
;
126 case OSPF6_LSTYPE_NETWORK
:
127 reason
= OSPF6_SPF_FLAGS_NETWORK_LSA_REMOVED
;
129 case OSPF6_LSTYPE_LINK
:
130 reason
= OSPF6_SPF_FLAGS_LINK_LSA_REMOVED
;
138 extern void ospf6_spf_table_finish(struct ospf6_route_table
*result_table
);
139 extern void ospf6_spf_calculation(uint32_t router_id
,
140 struct ospf6_route_table
*result_table
,
141 struct ospf6_area
*oa
);
142 extern void ospf6_spf_schedule(struct ospf6
*ospf
, unsigned int reason
);
144 extern void ospf6_spf_display_subtree(struct vty
*vty
, const char *prefix
,
145 int rest
, struct ospf6_vertex
*v
);
147 extern void ospf6_spf_config_write(struct vty
*vty
);
148 extern int config_write_ospf6_debug_spf(struct vty
*vty
);
149 extern void install_element_ospf6_debug_spf(void);
150 extern void ospf6_spf_init(void);
151 extern void ospf6_spf_reason_string(unsigned int reason
, char *buf
, int size
);
152 extern struct ospf6_lsa
*ospf6_create_single_router_lsa(struct ospf6_area
*area
,
153 struct ospf6_lsdb
*lsdb
,
154 uint32_t adv_router
);
155 extern void ospf6_remove_temp_router_lsa(struct ospf6_area
*area
);
157 #endif /* OSPF6_SPF_H */