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ef1bbf5c | 1 | /* OSPFv3 SNMP support |
2 | * Copyright (C) 2004 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 | #include <zebra.h> | |
23 | ||
24 | #ifdef HAVE_SNMP | |
25 | ||
26 | #ifdef HAVE_NETSNMP | |
27 | #include <net-snmp/net-snmp-config.h> | |
fb62a3ce JT |
28 | #include <net-snmp/net-snmp-includes.h> |
29 | #else | |
ef1bbf5c | 30 | #include <asn1.h> |
31 | #include <snmp.h> | |
32 | #include <snmp_impl.h> | |
fb62a3ce | 33 | #endif |
ef1bbf5c | 34 | |
35 | #include "log.h" | |
36 | #include "vty.h" | |
37 | #include "linklist.h" | |
38 | #include "smux.h" | |
39 | ||
40 | #include "ospf6_proto.h" | |
41 | #include "ospf6_lsa.h" | |
42 | #include "ospf6_lsdb.h" | |
43 | #include "ospf6_route.h" | |
44 | #include "ospf6_top.h" | |
45 | #include "ospf6_area.h" | |
46 | #include "ospf6_interface.h" | |
47 | #include "ospf6_message.h" | |
48 | #include "ospf6_neighbor.h" | |
49 | #include "ospf6d.h" | |
50 | ||
51 | /* OSPFv3-MIB */ | |
52 | #define OSPFv3MIB 1,3,6,1,3,102 | |
53 | ||
ef1bbf5c | 54 | /* OSPFv3 MIB General Group values. */ |
55 | #define OSPFv3ROUTERID 1 | |
56 | #define OSPFv3ADMINSTAT 2 | |
57 | #define OSPFv3VERSIONNUMBER 3 | |
58 | #define OSPFv3AREABDRRTRSTATUS 4 | |
59 | #define OSPFv3ASBDRRTRSTATUS 5 | |
60 | #define OSPFv3ASSCOPELSACOUNT 6 | |
61 | #define OSPFv3ASSCOPELSACHECKSUMSUM 7 | |
62 | #define OSPFv3ORIGINATENEWLSAS 8 | |
63 | #define OSPFv3RXNEWLSAS 9 | |
64 | #define OSPFv3EXTLSACOUNT 10 | |
65 | #define OSPFv3EXTAREALSDBLIMIT 11 | |
66 | #define OSPFv3MULTICASTEXTENSIONS 12 | |
67 | #define OSPFv3EXITOVERFLOWINTERVAL 13 | |
68 | #define OSPFv3DEMANDEXTENSIONS 14 | |
69 | #define OSPFv3TRAFFICENGINEERINGSUPPORT 15 | |
70 | #define OSPFv3REFERENCEBANDWIDTH 16 | |
71 | #define OSPFv3RESTARTSUPPORT 17 | |
72 | #define OSPFv3RESTARTINTERVAL 18 | |
73 | #define OSPFv3RESTARTSTATUS 19 | |
74 | #define OSPFv3RESTARTAGE 20 | |
75 | #define OSPFv3RESTARTEXITREASON 21 | |
76 | ||
77 | /* OSPFv3 MIB Area Table values. */ | |
78 | #define OSPFv3AREAID 1 | |
79 | #define OSPFv3IMPORTASEXTERN 2 | |
2680aa2b | 80 | #define OSPFv3AREASPFRUNS 3 |
81 | #define OSPFv3AREABDRRTRCOUNT 4 | |
82 | #define OSPFv3AREAASBDRRTRCOUNT 5 | |
83 | #define OSPFv3AREASCOPELSACOUNT 6 | |
84 | #define OSPFv3AREASCOPELSACKSUMSUM 7 | |
85 | #define OSPFv3AREASUMMARY 8 | |
86 | #define OSPFv3AREASTATUS 9 | |
87 | #define OSPFv3STUBMETRIC 10 | |
88 | #define OSPFv3AREANSSATRANSLATORROLE 11 | |
89 | #define OSPFv3AREANSSATRANSLATORSTATE 12 | |
90 | #define OSPFv3AREANSSATRANSLATORSTABILITYINTERVAL 13 | |
91 | #define OSPFv3AREANSSATRANSLATOREVENTS 14 | |
92 | #define OSPFv3AREASTUBMETRICTYPE 15 | |
93 | ||
94 | /* OSPFv3 MIB Area Lsdb Table values. */ | |
95 | #define OSPFv3AREALSDBAREAID 1 | |
96 | #define OSPFv3AREALSDBTYPE 2 | |
97 | #define OSPFv3AREALSDBROUTERID 3 | |
98 | #define OSPFv3AREALSDBLSID 4 | |
99 | #define OSPFv3AREALSDBSEQUENCE 5 | |
100 | #define OSPFv3AREALSDBAGE 6 | |
101 | #define OSPFv3AREALSDBCHECKSUM 7 | |
102 | #define OSPFv3AREALSDBADVERTISEMENT 8 | |
103 | #define OSPFv3AREALSDBTYPEKNOWN 9 | |
ef1bbf5c | 104 | |
105 | /* SYNTAX Status from OSPF-MIB. */ | |
106 | #define OSPF_STATUS_ENABLED 1 | |
107 | #define OSPF_STATUS_DISABLED 2 | |
108 | ||
109 | /* SNMP value hack. */ | |
110 | #define COUNTER ASN_COUNTER | |
111 | #define INTEGER ASN_INTEGER | |
112 | #define GAUGE ASN_GAUGE | |
113 | #define TIMETICKS ASN_TIMETICKS | |
114 | #define IPADDRESS ASN_IPADDRESS | |
115 | #define STRING ASN_OCTET_STR | |
116 | ||
117 | /* For return values e.g. SNMP_INTEGER macro */ | |
118 | SNMP_LOCAL_VARIABLES | |
119 | ||
120 | static struct in_addr tmp; | |
121 | #define INT32_INADDR(x) \ | |
122 | (tmp.s_addr = (x), tmp) | |
123 | ||
124 | /* OSPFv3-MIB instances. */ | |
125 | oid ospfv3_oid [] = { OSPFv3MIB }; | |
ef1bbf5c | 126 | |
127 | /* empty ID 0.0.0.0 e.g. empty router-id */ | |
128 | static struct in_addr ospf6_empty_id = {0}; | |
129 | ||
130 | /* Hook functions. */ | |
131 | static u_char *ospfv3GeneralGroup (); | |
132 | static u_char *ospfv3AreaEntry (); | |
2680aa2b | 133 | static u_char *ospfv3AreaLsdbEntry (); |
ef1bbf5c | 134 | |
135 | struct variable ospfv3_variables[] = | |
136 | { | |
137 | /* OSPF general variables */ | |
138 | {OSPFv3ROUTERID, IPADDRESS, RWRITE, ospfv3GeneralGroup, | |
139 | 3, {1, 1, 1}}, | |
140 | {OSPFv3ADMINSTAT, INTEGER, RWRITE, ospfv3GeneralGroup, | |
141 | 3, {1, 1, 2}}, | |
142 | {OSPFv3VERSIONNUMBER, INTEGER, RONLY, ospfv3GeneralGroup, | |
143 | 3, {1, 1, 3}}, | |
144 | {OSPFv3AREABDRRTRSTATUS, INTEGER, RONLY, ospfv3GeneralGroup, | |
145 | 3, {1, 1, 4}}, | |
146 | {OSPFv3ASBDRRTRSTATUS, INTEGER, RWRITE, ospfv3GeneralGroup, | |
147 | 3, {1, 1, 5}}, | |
148 | {OSPFv3ASSCOPELSACOUNT, GAUGE, RONLY, ospfv3GeneralGroup, | |
149 | 3, {1, 1, 6}}, | |
150 | {OSPFv3ASSCOPELSACHECKSUMSUM, INTEGER, RONLY, ospfv3GeneralGroup, | |
151 | 3, {1, 1, 7}}, | |
152 | {OSPFv3ORIGINATENEWLSAS, COUNTER, RONLY, ospfv3GeneralGroup, | |
153 | 3, {1, 1, 8}}, | |
154 | {OSPFv3RXNEWLSAS, COUNTER, RONLY, ospfv3GeneralGroup, | |
155 | 3, {1, 1, 9}}, | |
156 | {OSPFv3EXTLSACOUNT, GAUGE, RONLY, ospfv3GeneralGroup, | |
157 | 3, {1, 1, 10}}, | |
158 | {OSPFv3EXTAREALSDBLIMIT, INTEGER, RWRITE, ospfv3GeneralGroup, | |
159 | 3, {1, 1, 11}}, | |
160 | {OSPFv3MULTICASTEXTENSIONS, INTEGER, RWRITE, ospfv3GeneralGroup, | |
161 | 3, {1, 1, 12}}, | |
162 | {OSPFv3EXITOVERFLOWINTERVAL, INTEGER, RWRITE, ospfv3GeneralGroup, | |
163 | 3, {1, 1, 13}}, | |
164 | {OSPFv3DEMANDEXTENSIONS, INTEGER, RWRITE, ospfv3GeneralGroup, | |
165 | 3, {1, 1, 14}}, | |
166 | {OSPFv3TRAFFICENGINEERINGSUPPORT, INTEGER, RWRITE, ospfv3GeneralGroup, | |
167 | 3, {1, 1, 15}}, | |
168 | {OSPFv3REFERENCEBANDWIDTH, INTEGER, RWRITE, ospfv3GeneralGroup, | |
169 | 3, {1, 1, 16}}, | |
170 | {OSPFv3RESTARTSUPPORT, INTEGER, RWRITE, ospfv3GeneralGroup, | |
171 | 3, {1, 1, 17}}, | |
172 | {OSPFv3RESTARTINTERVAL, INTEGER, RWRITE, ospfv3GeneralGroup, | |
173 | 3, {1, 1, 18}}, | |
174 | {OSPFv3RESTARTSTATUS, INTEGER, RONLY, ospfv3GeneralGroup, | |
175 | 3, {1, 1, 19}}, | |
176 | {OSPFv3RESTARTAGE, INTEGER, RONLY, ospfv3GeneralGroup, | |
177 | 3, {1, 1, 20}}, | |
178 | {OSPFv3RESTARTEXITREASON, INTEGER, RONLY, ospfv3GeneralGroup, | |
179 | 3, {1, 1, 21}}, | |
180 | ||
181 | /* OSPFv3 Area Data Structure */ | |
182 | {OSPFv3AREAID, IPADDRESS, RONLY, ospfv3AreaEntry, | |
183 | 4, {1, 2, 1, 1}}, | |
2680aa2b | 184 | {OSPFv3IMPORTASEXTERN, INTEGER, RWRITE, ospfv3AreaEntry, |
ef1bbf5c | 185 | 4, {1, 2, 1, 2}}, |
2680aa2b | 186 | {OSPFv3AREASPFRUNS, COUNTER, RONLY, ospfv3AreaEntry, |
187 | 4, {1, 2, 1, 3}}, | |
188 | {OSPFv3AREABDRRTRCOUNT, GAUGE, RONLY, ospfv3AreaEntry, | |
189 | 4, {1, 2, 1, 4}}, | |
190 | {OSPFv3AREAASBDRRTRCOUNT, GAUGE, RONLY, ospfv3AreaEntry, | |
191 | 4, {1, 2, 1, 5}}, | |
192 | {OSPFv3AREASCOPELSACOUNT, GAUGE, RONLY, ospfv3AreaEntry, | |
193 | 4, {1, 2, 1, 6}}, | |
194 | {OSPFv3AREASCOPELSACKSUMSUM, INTEGER, RONLY, ospfv3AreaEntry, | |
195 | 4, {1, 2, 1, 7}}, | |
196 | {OSPFv3AREASUMMARY, INTEGER, RWRITE, ospfv3AreaEntry, | |
197 | 4, {1, 2, 1, 8}}, | |
198 | {OSPFv3AREASTATUS, INTEGER, RWRITE, ospfv3AreaEntry, | |
199 | 4, {1, 2, 1, 9}}, | |
200 | {OSPFv3STUBMETRIC, INTEGER, RWRITE, ospfv3AreaEntry, | |
201 | 4, {1, 2, 1, 10}}, | |
202 | {OSPFv3AREANSSATRANSLATORROLE, INTEGER, RWRITE, ospfv3AreaEntry, | |
203 | 4, {1, 2, 1, 11}}, | |
204 | {OSPFv3AREANSSATRANSLATORSTATE, INTEGER, RONLY, ospfv3AreaEntry, | |
205 | 4, {1, 2, 1, 12}}, | |
206 | {OSPFv3AREANSSATRANSLATORSTABILITYINTERVAL, INTEGER, RWRITE, ospfv3AreaEntry, | |
207 | 4, {1, 2, 1, 13}}, | |
208 | {OSPFv3AREANSSATRANSLATOREVENTS, COUNTER, RONLY, ospfv3AreaEntry, | |
209 | 4, {1, 2, 1, 14}}, | |
210 | {OSPFv3AREASTUBMETRICTYPE, INTEGER, RWRITE, ospfv3AreaEntry, | |
211 | 4, {1, 2, 1, 15}}, | |
212 | ||
213 | {OSPFv3AREALSDBAREAID, IPADDRESS, RONLY, ospfv3AreaLsdbEntry, | |
214 | 4, {1, 4, 1, 1}}, | |
215 | {OSPFv3AREALSDBTYPE, GAUGE, RONLY, ospfv3AreaLsdbEntry, | |
216 | 4, {1, 4, 1, 2}}, | |
217 | {OSPFv3AREALSDBROUTERID, IPADDRESS, RONLY, ospfv3AreaLsdbEntry, | |
218 | 4, {1, 4, 1, 3}}, | |
219 | {OSPFv3AREALSDBLSID, IPADDRESS, RONLY, ospfv3AreaLsdbEntry, | |
220 | 4, {1, 4, 1, 4}}, | |
221 | {OSPFv3AREALSDBSEQUENCE, INTEGER, RONLY, ospfv3AreaLsdbEntry, | |
222 | 4, {1, 4, 1, 5}}, | |
223 | {OSPFv3AREALSDBAGE, INTEGER, RONLY, ospfv3AreaLsdbEntry, | |
224 | 4, {1, 4, 1, 6}}, | |
225 | {OSPFv3AREALSDBCHECKSUM, INTEGER, RONLY, ospfv3AreaLsdbEntry, | |
226 | 4, {1, 4, 1, 7}}, | |
227 | {OSPFv3AREALSDBADVERTISEMENT, STRING, RONLY, ospfv3AreaLsdbEntry, | |
228 | 4, {1, 4, 1, 8}}, | |
229 | {OSPFv3AREALSDBTYPEKNOWN, INTEGER, RONLY, ospfv3AreaLsdbEntry, | |
230 | 4, {1, 4, 1, 9}}, | |
231 | ||
ef1bbf5c | 232 | }; |
233 | ||
234 | static u_char * | |
235 | ospfv3GeneralGroup (struct variable *v, oid *name, size_t *length, | |
236 | int exact, size_t *var_len, WriteMethod **write_method) | |
237 | { | |
238 | /* Check whether the instance identifier is valid */ | |
239 | if (smux_header_generic (v, name, length, exact, var_len, write_method) | |
240 | == MATCH_FAILED) | |
241 | return NULL; | |
242 | ||
243 | /* Return the current value of the variable */ | |
244 | switch (v->magic) | |
245 | { | |
246 | case OSPFv3ROUTERID: /* 1*/ | |
247 | /* Router-ID of this OSPF instance. */ | |
248 | if (ospf6) | |
249 | return SNMP_IPADDRESS (INT32_INADDR (ospf6->router_id)); | |
250 | else | |
251 | return SNMP_IPADDRESS (ospf6_empty_id); | |
252 | break; | |
253 | case OSPFv3ADMINSTAT: /* 2*/ | |
254 | break; | |
255 | case OSPFv3VERSIONNUMBER: /* 3*/ | |
256 | break; | |
257 | case OSPFv3AREABDRRTRSTATUS: /* 4*/ | |
258 | break; | |
259 | case OSPFv3ASBDRRTRSTATUS: /* 5*/ | |
260 | break; | |
261 | case OSPFv3ASSCOPELSACOUNT: /* 6*/ | |
262 | break; | |
263 | case OSPFv3ASSCOPELSACHECKSUMSUM: /* 7*/ | |
264 | break; | |
265 | case OSPFv3ORIGINATENEWLSAS: /* 8*/ | |
266 | break; | |
267 | case OSPFv3RXNEWLSAS: /* 9*/ | |
268 | break; | |
269 | case OSPFv3EXTLSACOUNT: /*10*/ | |
270 | break; | |
271 | case OSPFv3EXTAREALSDBLIMIT: /*11*/ | |
272 | break; | |
273 | case OSPFv3MULTICASTEXTENSIONS: /*12*/ | |
274 | break; | |
275 | case OSPFv3EXITOVERFLOWINTERVAL: /*13*/ | |
276 | break; | |
277 | case OSPFv3DEMANDEXTENSIONS: /*14*/ | |
278 | break; | |
279 | case OSPFv3TRAFFICENGINEERINGSUPPORT: /*15*/ | |
280 | break; | |
281 | case OSPFv3REFERENCEBANDWIDTH: /*16*/ | |
282 | break; | |
283 | case OSPFv3RESTARTSUPPORT: /*17*/ | |
284 | break; | |
285 | case OSPFv3RESTARTINTERVAL: /*18*/ | |
286 | break; | |
287 | case OSPFv3RESTARTSTATUS: /*19*/ | |
288 | break; | |
289 | case OSPFv3RESTARTAGE: /*20*/ | |
290 | break; | |
291 | case OSPFv3RESTARTEXITREASON: /*21*/ | |
292 | break; | |
293 | default: | |
294 | return NULL; | |
295 | } | |
296 | return NULL; | |
297 | } | |
298 | ||
299 | static u_char * | |
300 | ospfv3AreaEntry (struct variable *v, oid *name, size_t *length, | |
301 | int exact, size_t *var_len, WriteMethod **write_method) | |
302 | { | |
303 | struct ospf6_area *oa, *area = NULL; | |
304 | u_int32_t area_id = 0; | |
0c083ee9 | 305 | struct listnode *node; |
306 | unsigned int len; | |
ef1bbf5c | 307 | |
308 | if (ospf6 == NULL) | |
309 | return NULL; | |
310 | ||
311 | len = *length - v->namelen; | |
312 | len = (len >= sizeof (u_int32_t) ? sizeof (u_int32_t) : 0); | |
313 | if (exact && len != sizeof (u_int32_t)) | |
314 | return NULL; | |
315 | if (len) | |
316 | oid2in_addr (name + v->namelen, len, (struct in_addr *) &area_id); | |
317 | ||
eda9ba74 | 318 | zlog_debug ("SNMP access by area: %s, exact=%d len=%d length=%lu", |
c6487d61 | 319 | inet_ntoa (* (struct in_addr *) &area_id), |
eda9ba74 | 320 | exact, len, (u_long)*length); |
ef1bbf5c | 321 | |
1eb8ef25 | 322 | for (ALL_LIST_ELEMENTS_RO (ospf6->area_list, node, oa)) |
ef1bbf5c | 323 | { |
ef1bbf5c | 324 | if (area == NULL) |
325 | { | |
326 | if (len == 0) /* return first area entry */ | |
327 | area = oa; | |
328 | else if (exact && ntohl (oa->area_id) == ntohl (area_id)) | |
329 | area = oa; | |
330 | else if (ntohl (oa->area_id) > ntohl (area_id)) | |
331 | area = oa; | |
332 | } | |
333 | } | |
334 | ||
335 | if (area == NULL) | |
336 | return NULL; | |
337 | ||
338 | *length = v->namelen + sizeof (u_int32_t); | |
339 | oid_copy_addr (name + v->namelen, (struct in_addr *) &area->area_id, | |
340 | sizeof (u_int32_t)); | |
341 | ||
eda9ba74 | 342 | zlog_debug ("SNMP found area: %s, exact=%d len=%d length=%lu", |
c6487d61 | 343 | inet_ntoa (* (struct in_addr *) &area->area_id), |
eda9ba74 | 344 | exact, len, (u_long)*length); |
ef1bbf5c | 345 | |
346 | switch (v->magic) | |
347 | { | |
348 | case OSPFv3AREAID: /* 1*/ | |
349 | return SNMP_IPADDRESS (INT32_INADDR (area->area_id)); | |
350 | break; | |
351 | case OSPFv3IMPORTASEXTERN: /* 2*/ | |
352 | return SNMP_INTEGER (ospf6->external_table->count); | |
353 | break; | |
354 | default: | |
355 | return NULL; | |
356 | break; | |
357 | } | |
358 | return NULL; | |
359 | } | |
360 | ||
2680aa2b | 361 | static u_char * |
362 | ospfv3AreaLsdbEntry (struct variable *v, oid *name, size_t *length, | |
363 | int exact, size_t *var_len, WriteMethod **write_method) | |
364 | { | |
365 | struct ospf6_lsa *lsa = NULL; | |
366 | struct in_addr area_id; | |
367 | u_int16_t type; | |
368 | struct in_addr id; | |
369 | struct in_addr adv_router; | |
370 | int len; | |
371 | oid *offset; | |
372 | int offsetlen; | |
373 | char a[16], b[16], c[16]; | |
374 | struct ospf6_area *oa; | |
b3c8c465 | 375 | struct listnode *node; |
2680aa2b | 376 | |
377 | memset (&area_id, 0, sizeof (struct in_addr)); | |
378 | type = 0; | |
379 | memset (&id, 0, sizeof (struct in_addr)); | |
380 | memset (&adv_router, 0, sizeof (struct in_addr)); | |
381 | ||
382 | /* Check OSPFv3 instance. */ | |
383 | if (ospf6 == NULL) | |
384 | return NULL; | |
385 | ||
386 | /* Get variable length. */ | |
387 | offset = name + v->namelen; | |
388 | offsetlen = *length - v->namelen; | |
389 | ||
390 | #define OSPFV3_AREA_LSDB_ENTRY_EXACT_OFFSET \ | |
391 | (IN_ADDR_SIZE + 1 + IN_ADDR_SIZE + IN_ADDR_SIZE) | |
392 | ||
393 | if (exact && offsetlen != OSPFV3_AREA_LSDB_ENTRY_EXACT_OFFSET) | |
394 | return NULL; | |
395 | ||
396 | /* Parse area-id */ | |
397 | len = (offsetlen < IN_ADDR_SIZE ? offsetlen : IN_ADDR_SIZE); | |
398 | if (len) | |
399 | oid2in_addr (offset, len, &area_id); | |
400 | offset += len; | |
401 | offsetlen -= len; | |
402 | ||
403 | /* Parse type */ | |
404 | len = (offsetlen < 1 ? offsetlen : 1); | |
405 | if (len) | |
406 | type = htons (*offset); | |
407 | offset += len; | |
408 | offsetlen -= len; | |
409 | ||
410 | /* Parse Router-ID */ | |
411 | len = (offsetlen < IN_ADDR_SIZE ? offsetlen : IN_ADDR_SIZE); | |
412 | if (len) | |
413 | oid2in_addr (offset, len, &adv_router); | |
414 | offset += len; | |
415 | offsetlen -= len; | |
416 | ||
417 | /* Parse LS-ID */ | |
418 | len = (offsetlen < IN_ADDR_SIZE ? offsetlen : IN_ADDR_SIZE); | |
419 | if (len) | |
420 | oid2in_addr (offset, len, &id); | |
421 | offset += len; | |
422 | offsetlen -= len; | |
423 | ||
424 | inet_ntop (AF_INET, &area_id, a, sizeof (a)); | |
425 | inet_ntop (AF_INET, &adv_router, b, sizeof (b)); | |
426 | inet_ntop (AF_INET, &id, c, sizeof (c)); | |
eda9ba74 | 427 | zlog_debug ("SNMP access by lsdb: area=%s exact=%d length=%lu magic=%d" |
c6487d61 | 428 | " type=%#x adv_router=%s id=%s", |
eda9ba74 | 429 | a, exact, (u_long)*length, v->magic, ntohs (type), b, c); |
2680aa2b | 430 | |
431 | if (exact) | |
432 | { | |
433 | oa = ospf6_area_lookup (area_id.s_addr, ospf6); | |
434 | lsa = ospf6_lsdb_lookup (type, id.s_addr, adv_router.s_addr, oa->lsdb); | |
435 | } | |
436 | else | |
437 | { | |
1eb8ef25 | 438 | for (ALL_LIST_ELEMENTS_RO (ospf6->area_list, node, oa)) |
2680aa2b | 439 | { |
2680aa2b | 440 | if (lsa) |
441 | continue; | |
442 | if (ntohl (oa->area_id) < ntohl (area_id.s_addr)) | |
443 | continue; | |
444 | ||
445 | lsa = ospf6_lsdb_lookup_next (type, id.s_addr, adv_router.s_addr, | |
446 | oa->lsdb); | |
447 | if (! lsa) | |
448 | { | |
449 | type = 0; | |
450 | memset (&id, 0, sizeof (struct in_addr)); | |
451 | memset (&adv_router, 0, sizeof (struct in_addr)); | |
452 | } | |
453 | } | |
454 | } | |
455 | ||
456 | if (! lsa) | |
457 | { | |
c6487d61 | 458 | zlog_debug ("SNMP respond: No LSA to return"); |
2680aa2b | 459 | return NULL; |
460 | } | |
461 | oa = OSPF6_AREA (lsa->lsdb->data); | |
462 | ||
c6487d61 | 463 | zlog_debug ("SNMP respond: area: %s lsa: %s", oa->name, lsa->name); |
2680aa2b | 464 | |
465 | /* Add Index (AreaId, Type, RouterId, Lsid) */ | |
466 | *length = v->namelen + OSPFV3_AREA_LSDB_ENTRY_EXACT_OFFSET; | |
467 | offset = name + v->namelen; | |
468 | oid_copy_addr (offset, (struct in_addr *) &oa->area_id, IN_ADDR_SIZE); | |
469 | offset += IN_ADDR_SIZE; | |
470 | *offset = ntohs (lsa->header->type); | |
471 | offset++; | |
472 | oid_copy_addr (offset, (struct in_addr *) &lsa->header->adv_router, | |
473 | IN_ADDR_SIZE); | |
474 | offset += IN_ADDR_SIZE; | |
475 | oid_copy_addr (offset, (struct in_addr *) &lsa->header->id, IN_ADDR_SIZE); | |
476 | offset += IN_ADDR_SIZE; | |
477 | ||
478 | /* Return the current value of the variable */ | |
479 | switch (v->magic) | |
480 | { | |
481 | case OSPFv3AREALSDBAREAID: /* 1 */ | |
482 | area_id.s_addr = OSPF6_AREA (lsa->lsdb->data)->area_id; | |
483 | return SNMP_IPADDRESS (area_id); | |
484 | break; | |
485 | case OSPFv3AREALSDBTYPE: /* 2 */ | |
486 | return SNMP_INTEGER (ntohs (lsa->header->type)); | |
487 | break; | |
488 | case OSPFv3AREALSDBROUTERID: /* 3 */ | |
489 | adv_router.s_addr = lsa->header->adv_router; | |
490 | return SNMP_IPADDRESS (adv_router); | |
491 | break; | |
492 | case OSPFv3AREALSDBLSID: /* 4 */ | |
493 | id.s_addr = lsa->header->id; | |
494 | return SNMP_IPADDRESS (id); | |
495 | break; | |
496 | case OSPFv3AREALSDBSEQUENCE: /* 5 */ | |
497 | return SNMP_INTEGER (lsa->header->seqnum); | |
498 | break; | |
499 | case OSPFv3AREALSDBAGE: /* 6 */ | |
500 | ospf6_lsa_age_current (lsa); | |
501 | return SNMP_INTEGER (lsa->header->age); | |
502 | break; | |
503 | case OSPFv3AREALSDBCHECKSUM: /* 7 */ | |
504 | return SNMP_INTEGER (lsa->header->checksum); | |
505 | break; | |
506 | case OSPFv3AREALSDBADVERTISEMENT: /* 8 */ | |
507 | *var_len = ntohs (lsa->header->length); | |
508 | return (u_char *) lsa->header; | |
509 | break; | |
510 | case OSPFv3AREALSDBTYPEKNOWN: /* 9 */ | |
511 | return SNMP_INTEGER (OSPF6_LSA_IS_KNOWN (lsa->header->type) ? | |
512 | SNMP_TRUE : SNMP_FALSE); | |
513 | break; | |
514 | default: | |
515 | return NULL; | |
516 | break; | |
517 | } | |
518 | return NULL; | |
519 | } | |
520 | ||
521 | ||
ef1bbf5c | 522 | /* Register OSPFv3-MIB. */ |
523 | void | |
0c083ee9 | 524 | ospf6_snmp_init (struct thread_master *master) |
ef1bbf5c | 525 | { |
c75105ab | 526 | smux_init (master); |
ef1bbf5c | 527 | REGISTER_MIB ("OSPFv3MIB", ospfv3_variables, variable, ospfv3_oid); |
ef1bbf5c | 528 | } |
529 | ||
530 | #endif /* HAVE_SNMP */ | |
531 |