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_ROUTE_H
23: #define OSPF6_ROUTE_H
24:
25: #define OSPF6_MULTI_PATH_LIMIT 4
26:
27: /* Debug option */
28: extern unsigned char conf_debug_ospf6_route;
29: #define OSPF6_DEBUG_ROUTE_TABLE 0x01
30: #define OSPF6_DEBUG_ROUTE_INTRA 0x02
31: #define OSPF6_DEBUG_ROUTE_INTER 0x04
32: #define OSPF6_DEBUG_ROUTE_MEMORY 0x80
33: #define OSPF6_DEBUG_ROUTE_ON(level) \
34: (conf_debug_ospf6_route |= (level))
35: #define OSPF6_DEBUG_ROUTE_OFF(level) \
36: (conf_debug_ospf6_route &= ~(level))
37: #define IS_OSPF6_DEBUG_ROUTE(e) \
38: (conf_debug_ospf6_route & OSPF6_DEBUG_ROUTE_ ## e)
39:
40: /* Nexthop */
41: struct ospf6_nexthop
42: {
43: /* Interface index */
44: unsigned int ifindex;
45:
46: /* IP address, if any */
47: struct in6_addr address;
48: };
49:
50: #define ospf6_nexthop_is_set(x) \
51: ((x)->ifindex || ! IN6_IS_ADDR_UNSPECIFIED (&(x)->address))
52: #define ospf6_nexthop_is_same(a,b) \
53: ((a)->ifindex == (b)->ifindex && \
54: IN6_ARE_ADDR_EQUAL (&(a)->address, &(b)->address))
55: #define ospf6_nexthop_clear(x) \
56: do { \
57: (x)->ifindex = 0; \
58: memset (&(x)->address, 0, sizeof (struct in6_addr)); \
59: } while (0)
60: #define ospf6_nexthop_copy(a, b) \
61: do { \
62: (a)->ifindex = (b)->ifindex; \
63: memcpy (&(a)->address, &(b)->address, \
64: sizeof (struct in6_addr)); \
65: } while (0)
66:
67: /* Path */
68: struct ospf6_ls_origin
69: {
70: u_int16_t type;
71: u_int32_t id;
72: u_int32_t adv_router;
73: };
74:
75: struct ospf6_path
76: {
77: /* Link State Origin */
78: struct ospf6_ls_origin origin;
79:
80: /* Router bits */
81: u_char router_bits;
82:
83: /* Optional Capabilities */
84: u_char options[3];
85:
86: /* Prefix Options */
87: u_char prefix_options;
88:
89: /* Associated Area */
90: u_int32_t area_id;
91:
92: /* Path-type */
93: u_char type;
94: u_char subtype; /* only used for redistribute i.e ZEBRA_ROUTE_XXX */
95:
96: /* Cost */
97: u_int8_t metric_type;
98: u_int32_t cost;
99: u_int32_t cost_e2;
100: };
101:
102: #define OSPF6_PATH_TYPE_NONE 0
103: #define OSPF6_PATH_TYPE_INTRA 1
104: #define OSPF6_PATH_TYPE_INTER 2
105: #define OSPF6_PATH_TYPE_EXTERNAL1 3
106: #define OSPF6_PATH_TYPE_EXTERNAL2 4
107: #define OSPF6_PATH_TYPE_REDISTRIBUTE 5
108: #define OSPF6_PATH_TYPE_MAX 6
109:
110: #include "prefix.h"
111: #include "table.h"
112:
113: struct ospf6_route
114: {
115: struct route_node *rnode;
116: struct ospf6_route_table *table;
117: struct ospf6_route *prev;
118: struct ospf6_route *next;
119:
120: unsigned int lock;
121:
122: /* Destination Type */
123: u_char type;
124:
125: /* Destination ID */
126: struct prefix prefix;
127:
128: /* Time */
129: struct timeval installed;
130: struct timeval changed;
131:
132: /* flag */
133: u_char flag;
134:
135: /* path */
136: struct ospf6_path path;
137:
138: /* nexthop */
139: struct ospf6_nexthop nexthop[OSPF6_MULTI_PATH_LIMIT];
140:
141: /* route option */
142: void *route_option;
143:
144: /* link state id for advertising */
145: u_int32_t linkstate_id;
146: };
147:
148: #define OSPF6_DEST_TYPE_NONE 0
149: #define OSPF6_DEST_TYPE_ROUTER 1
150: #define OSPF6_DEST_TYPE_NETWORK 2
151: #define OSPF6_DEST_TYPE_DISCARD 3
152: #define OSPF6_DEST_TYPE_LINKSTATE 4
153: #define OSPF6_DEST_TYPE_RANGE 5
154: #define OSPF6_DEST_TYPE_MAX 6
155:
156: #define OSPF6_ROUTE_CHANGE 0x01
157: #define OSPF6_ROUTE_ADD 0x02
158: #define OSPF6_ROUTE_REMOVE 0x04
159: #define OSPF6_ROUTE_BEST 0x08
160: #define OSPF6_ROUTE_ACTIVE_SUMMARY 0x10
161: #define OSPF6_ROUTE_DO_NOT_ADVERTISE 0x20
162: #define OSPF6_ROUTE_WAS_REMOVED 0x40
163:
164: struct ospf6_route_table
165: {
166: int scope_type;
167: int table_type;
168: void *scope;
169:
170: /* patricia tree */
171: struct route_table *table;
172:
173: u_int32_t count;
174:
175: /* hooks */
176: void (*hook_add) (struct ospf6_route *);
177: void (*hook_change) (struct ospf6_route *);
178: void (*hook_remove) (struct ospf6_route *);
179: };
180:
181: #define OSPF6_SCOPE_TYPE_NONE 0
182: #define OSPF6_SCOPE_TYPE_GLOBAL 1
183: #define OSPF6_SCOPE_TYPE_AREA 2
184: #define OSPF6_SCOPE_TYPE_INTERFACE 3
185:
186: #define OSPF6_TABLE_TYPE_NONE 0
187: #define OSPF6_TABLE_TYPE_ROUTES 1
188: #define OSPF6_TABLE_TYPE_BORDER_ROUTERS 2
189: #define OSPF6_TABLE_TYPE_CONNECTED_ROUTES 3
190: #define OSPF6_TABLE_TYPE_EXTERNAL_ROUTES 4
191: #define OSPF6_TABLE_TYPE_SPF_RESULTS 5
192: #define OSPF6_TABLE_TYPE_PREFIX_RANGES 6
193: #define OSPF6_TABLE_TYPE_SUMMARY_PREFIXES 7
194: #define OSPF6_TABLE_TYPE_SUMMARY_ROUTERS 8
195:
196: #define OSPF6_ROUTE_TABLE_CREATE(s, t) \
197: ospf6_route_table_create (OSPF6_SCOPE_TYPE_ ## s, \
198: OSPF6_TABLE_TYPE_ ## t)
199:
200: extern const char *ospf6_dest_type_str[OSPF6_DEST_TYPE_MAX];
201: extern const char *ospf6_dest_type_substr[OSPF6_DEST_TYPE_MAX];
202: #define OSPF6_DEST_TYPE_NAME(x) \
203: (0 < (x) && (x) < OSPF6_DEST_TYPE_MAX ? \
204: ospf6_dest_type_str[(x)] : ospf6_dest_type_str[0])
205: #define OSPF6_DEST_TYPE_SUBSTR(x) \
206: (0 < (x) && (x) < OSPF6_DEST_TYPE_MAX ? \
207: ospf6_dest_type_substr[(x)] : ospf6_dest_type_substr[0])
208:
209: extern const char *ospf6_path_type_str[OSPF6_PATH_TYPE_MAX];
210: extern const char *ospf6_path_type_substr[OSPF6_PATH_TYPE_MAX];
211: #define OSPF6_PATH_TYPE_NAME(x) \
212: (0 < (x) && (x) < OSPF6_PATH_TYPE_MAX ? \
213: ospf6_path_type_str[(x)] : ospf6_path_type_str[0])
214: #define OSPF6_PATH_TYPE_SUBSTR(x) \
215: (0 < (x) && (x) < OSPF6_PATH_TYPE_MAX ? \
216: ospf6_path_type_substr[(x)] : ospf6_path_type_substr[0])
217:
218: #define OSPF6_ROUTE_ADDRESS_STR "Display the route bestmatches the address\n"
219: #define OSPF6_ROUTE_PREFIX_STR "Display the route\n"
220: #define OSPF6_ROUTE_MATCH_STR "Display the route matches the prefix\n"
221:
222: #define ospf6_route_is_prefix(p, r) \
223: (memcmp (p, &(r)->prefix, sizeof (struct prefix)) == 0)
224: #define ospf6_route_is_same(ra, rb) \
225: (prefix_same (&(ra)->prefix, &(rb)->prefix))
226: #define ospf6_route_is_same_origin(ra, rb) \
227: ((ra)->path.area_id == (rb)->path.area_id && \
228: memcmp (&(ra)->path.origin, &(rb)->path.origin, \
229: sizeof (struct ospf6_ls_origin)) == 0)
230: #define ospf6_route_is_identical(ra, rb) \
231: ((ra)->type == (rb)->type && \
232: memcmp (&(ra)->prefix, &(rb)->prefix, sizeof (struct prefix)) == 0 && \
233: memcmp (&(ra)->path, &(rb)->path, sizeof (struct ospf6_path)) == 0 && \
234: memcmp (&(ra)->nexthop, &(rb)->nexthop, \
235: sizeof (struct ospf6_nexthop) * OSPF6_MULTI_PATH_LIMIT) == 0)
236: #define ospf6_route_is_best(r) (CHECK_FLAG ((r)->flag, OSPF6_ROUTE_BEST))
237:
238: #define ospf6_linkstate_prefix_adv_router(x) \
239: (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[0]))
240: #define ospf6_linkstate_prefix_id(x) \
241: (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[4]))
242:
243: #define ADV_ROUTER_IN_PREFIX(x) \
244: (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[0]))
245: #define ID_IN_PREFIX(x) \
246: (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[4]))
247:
248: /* Function prototype */
249: extern void ospf6_linkstate_prefix (u_int32_t adv_router, u_int32_t id,
250: struct prefix *prefix);
251: extern void ospf6_linkstate_prefix2str (struct prefix *prefix, char *buf,
252: int size);
253:
254: extern struct ospf6_route *ospf6_route_create (void);
255: extern void ospf6_route_delete (struct ospf6_route *);
256: extern struct ospf6_route *ospf6_route_copy (struct ospf6_route *route);
257:
258: extern void ospf6_route_lock (struct ospf6_route *route);
259: extern void ospf6_route_unlock (struct ospf6_route *route);
260:
261: extern struct ospf6_route *ospf6_route_lookup (struct prefix *prefix,
262: struct ospf6_route_table *table);
263: extern struct ospf6_route *ospf6_route_lookup_identical (struct ospf6_route *route,
264: struct ospf6_route_table *table);
265: extern struct ospf6_route *ospf6_route_lookup_bestmatch (struct prefix *prefix,
266: struct ospf6_route_table *table);
267:
268: extern struct ospf6_route *ospf6_route_add (struct ospf6_route *route,
269: struct ospf6_route_table *table);
270: extern void ospf6_route_remove (struct ospf6_route *route,
271: struct ospf6_route_table *table);
272:
273: extern struct ospf6_route *ospf6_route_head (struct ospf6_route_table *table);
274: extern struct ospf6_route *ospf6_route_next (struct ospf6_route *route);
275: extern struct ospf6_route *ospf6_route_best_next (struct ospf6_route *route);
276:
277: extern struct ospf6_route *ospf6_route_match_head (struct prefix *prefix,
278: struct ospf6_route_table *table);
279: extern struct ospf6_route *ospf6_route_match_next (struct prefix *prefix,
280: struct ospf6_route *route);
281:
282: extern void ospf6_route_remove_all (struct ospf6_route_table *);
283: extern struct ospf6_route_table *ospf6_route_table_create (int s, int t);
284: extern void ospf6_route_table_delete (struct ospf6_route_table *);
285: extern void ospf6_route_dump (struct ospf6_route_table *table);
286:
287:
288: extern void ospf6_route_show (struct vty *vty, struct ospf6_route *route);
289: extern void ospf6_route_show_detail (struct vty *vty, struct ospf6_route *route);
290:
291: extern int ospf6_route_table_show (struct vty *, int, const char *[],
292: struct ospf6_route_table *);
293: extern int ospf6_linkstate_table_show (struct vty *vty, int argc,
294: const char *argv[],
295: struct ospf6_route_table *table);
296:
297: extern void ospf6_brouter_show_header (struct vty *vty);
298: extern void ospf6_brouter_show (struct vty *vty, struct ospf6_route *route);
299:
300: extern int config_write_ospf6_debug_route (struct vty *vty);
301: extern void install_element_ospf6_debug_route (void);
302: extern void ospf6_route_init (void);
303:
304: #endif /* OSPF6_ROUTE_H */
305:
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