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718e3744 | 1 | /* RIP SNMP support |
2 | * Copyright (C) 1999 Kunihiro Ishiguro <kunihiro@zebra.org> | |
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 | * | |
896014f4 DL |
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 | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
07661cb5 | 23 | #include <net-snmp/net-snmp-config.h> |
fb62a3ce | 24 | #include <net-snmp/net-snmp-includes.h> |
718e3744 | 25 | |
26 | #include "if.h" | |
d6b1bfba | 27 | #include "vrf.h" |
718e3744 | 28 | #include "log.h" |
29 | #include "prefix.h" | |
30 | #include "command.h" | |
31 | #include "table.h" | |
32 | #include "smux.h" | |
5986b66b DL |
33 | #include "libfrr.h" |
34 | #include "version.h" | |
718e3744 | 35 | |
36 | #include "ripd/ripd.h" | |
6b0655a2 | 37 | |
718e3744 | 38 | /* RIPv2-MIB. */ |
39 | #define RIPV2MIB 1,3,6,1,2,1,23 | |
40 | ||
718e3744 | 41 | /* RIPv2-MIB rip2Globals values. */ |
42 | #define RIP2GLOBALROUTECHANGES 1 | |
43 | #define RIP2GLOBALQUERIES 2 | |
44 | ||
45 | /* RIPv2-MIB rip2IfStatEntry. */ | |
46 | #define RIP2IFSTATENTRY 1 | |
47 | ||
48 | /* RIPv2-MIB rip2IfStatTable. */ | |
49 | #define RIP2IFSTATADDRESS 1 | |
50 | #define RIP2IFSTATRCVBADPACKETS 2 | |
51 | #define RIP2IFSTATRCVBADROUTES 3 | |
52 | #define RIP2IFSTATSENTUPDATES 4 | |
53 | #define RIP2IFSTATSTATUS 5 | |
54 | ||
55 | /* RIPv2-MIB rip2IfConfTable. */ | |
56 | #define RIP2IFCONFADDRESS 1 | |
57 | #define RIP2IFCONFDOMAIN 2 | |
58 | #define RIP2IFCONFAUTHTYPE 3 | |
59 | #define RIP2IFCONFAUTHKEY 4 | |
60 | #define RIP2IFCONFSEND 5 | |
61 | #define RIP2IFCONFRECEIVE 6 | |
62 | #define RIP2IFCONFDEFAULTMETRIC 7 | |
63 | #define RIP2IFCONFSTATUS 8 | |
64 | #define RIP2IFCONFSRCADDRESS 9 | |
65 | ||
66 | /* RIPv2-MIB rip2PeerTable. */ | |
67 | #define RIP2PEERADDRESS 1 | |
68 | #define RIP2PEERDOMAIN 2 | |
69 | #define RIP2PEERLASTUPDATE 3 | |
70 | #define RIP2PEERVERSION 4 | |
71 | #define RIP2PEERRCVBADPACKETS 5 | |
72 | #define RIP2PEERRCVBADROUTES 6 | |
73 | ||
74 | /* SNMP value hack. */ | |
75 | #define COUNTER ASN_COUNTER | |
76 | #define INTEGER ASN_INTEGER | |
77 | #define TIMETICKS ASN_TIMETICKS | |
78 | #define IPADDRESS ASN_IPADDRESS | |
79 | #define STRING ASN_OCTET_STR | |
6b0655a2 | 80 | |
718e3744 | 81 | /* Define SNMP local variables. */ |
82 | SNMP_LOCAL_VARIABLES | |
83 | ||
84 | /* RIP-MIB instances. */ | |
d62a17ae | 85 | static oid rip_oid[] = {RIPV2MIB}; |
718e3744 | 86 | |
87 | /* Interface cache table sorted by interface's address. */ | |
1c6f50bf | 88 | static struct route_table *rip_ifaddr_table; |
718e3744 | 89 | |
90 | /* Hook functions. */ | |
d7c0a89a QY |
91 | static uint8_t *rip2Globals(struct variable *, oid[], size_t *, int, size_t *, |
92 | WriteMethod **); | |
93 | static uint8_t *rip2IfStatEntry(struct variable *, oid[], size_t *, int, | |
94 | size_t *, WriteMethod **); | |
95 | static uint8_t *rip2IfConfAddress(struct variable *, oid[], size_t *, int, | |
96 | size_t *, WriteMethod **); | |
97 | static uint8_t *rip2PeerTable(struct variable *, oid[], size_t *, int, size_t *, | |
98 | WriteMethod **); | |
d62a17ae | 99 | |
100 | static struct variable rip_variables[] = { | |
101 | /* RIP Global Counters. */ | |
102 | {RIP2GLOBALROUTECHANGES, COUNTER, RONLY, rip2Globals, 2, {1, 1}}, | |
103 | {RIP2GLOBALQUERIES, COUNTER, RONLY, rip2Globals, 2, {1, 2}}, | |
104 | /* RIP Interface Tables. */ | |
105 | {RIP2IFSTATADDRESS, IPADDRESS, RONLY, rip2IfStatEntry, 3, {2, 1, 1}}, | |
106 | {RIP2IFSTATRCVBADPACKETS, | |
107 | COUNTER, | |
108 | RONLY, | |
109 | rip2IfStatEntry, | |
110 | 3, | |
111 | {2, 1, 2}}, | |
112 | {RIP2IFSTATRCVBADROUTES, COUNTER, RONLY, rip2IfStatEntry, 3, {2, 1, 3}}, | |
113 | {RIP2IFSTATSENTUPDATES, COUNTER, RONLY, rip2IfStatEntry, 3, {2, 1, 4}}, | |
114 | {RIP2IFSTATSTATUS, COUNTER, RWRITE, rip2IfStatEntry, 3, {2, 1, 5}}, | |
115 | {RIP2IFCONFADDRESS, | |
116 | IPADDRESS, | |
117 | RONLY, | |
118 | rip2IfConfAddress, | |
119 | /* RIP Interface Configuration Table. */ | |
120 | 3, | |
121 | {3, 1, 1}}, | |
122 | {RIP2IFCONFDOMAIN, STRING, RONLY, rip2IfConfAddress, 3, {3, 1, 2}}, | |
123 | {RIP2IFCONFAUTHTYPE, COUNTER, RONLY, rip2IfConfAddress, 3, {3, 1, 3}}, | |
124 | {RIP2IFCONFAUTHKEY, STRING, RONLY, rip2IfConfAddress, 3, {3, 1, 4}}, | |
125 | {RIP2IFCONFSEND, COUNTER, RONLY, rip2IfConfAddress, 3, {3, 1, 5}}, | |
126 | {RIP2IFCONFRECEIVE, COUNTER, RONLY, rip2IfConfAddress, 3, {3, 1, 6}}, | |
127 | {RIP2IFCONFDEFAULTMETRIC, | |
128 | COUNTER, | |
129 | RONLY, | |
130 | rip2IfConfAddress, | |
131 | 3, | |
132 | {3, 1, 7}}, | |
133 | {RIP2IFCONFSTATUS, COUNTER, RONLY, rip2IfConfAddress, 3, {3, 1, 8}}, | |
134 | {RIP2IFCONFSRCADDRESS, | |
135 | IPADDRESS, | |
136 | RONLY, | |
137 | rip2IfConfAddress, | |
138 | 3, | |
139 | {3, 1, 9}}, | |
140 | {RIP2PEERADDRESS, | |
141 | IPADDRESS, | |
142 | RONLY, | |
143 | rip2PeerTable, | |
144 | /* RIP Peer Table. */ | |
145 | 3, | |
146 | {4, 1, 1}}, | |
147 | {RIP2PEERDOMAIN, STRING, RONLY, rip2PeerTable, 3, {4, 1, 2}}, | |
148 | {RIP2PEERLASTUPDATE, TIMETICKS, RONLY, rip2PeerTable, 3, {4, 1, 3}}, | |
149 | {RIP2PEERVERSION, INTEGER, RONLY, rip2PeerTable, 3, {4, 1, 4}}, | |
150 | {RIP2PEERRCVBADPACKETS, COUNTER, RONLY, rip2PeerTable, 3, {4, 1, 5}}, | |
151 | {RIP2PEERRCVBADROUTES, COUNTER, RONLY, rip2PeerTable, 3, {4, 1, 6}}}; | |
dd488a78 | 152 | |
153 | extern struct thread_master *master; | |
6b0655a2 | 154 | |
d7c0a89a QY |
155 | static uint8_t *rip2Globals(struct variable *v, oid name[], size_t *length, |
156 | int exact, size_t *var_len, | |
157 | WriteMethod **write_method) | |
718e3744 | 158 | { |
d62a17ae | 159 | if (smux_header_generic(v, name, length, exact, var_len, write_method) |
160 | == MATCH_FAILED) | |
161 | return NULL; | |
162 | ||
163 | /* Retrun global counter. */ | |
164 | switch (v->magic) { | |
165 | case RIP2GLOBALROUTECHANGES: | |
166 | return SNMP_INTEGER(rip_global_route_changes); | |
167 | break; | |
168 | case RIP2GLOBALQUERIES: | |
169 | return SNMP_INTEGER(rip_global_queries); | |
170 | break; | |
171 | default: | |
172 | return NULL; | |
173 | break; | |
174 | } | |
175 | return NULL; | |
718e3744 | 176 | } |
177 | ||
d62a17ae | 178 | static int rip_snmp_ifaddr_add(struct connected *ifc) |
718e3744 | 179 | { |
d62a17ae | 180 | struct interface *ifp = ifc->ifp; |
181 | struct prefix *p; | |
182 | struct route_node *rn; | |
718e3744 | 183 | |
d62a17ae | 184 | p = ifc->address; |
718e3744 | 185 | |
d62a17ae | 186 | if (p->family != AF_INET) |
187 | return 0; | |
718e3744 | 188 | |
d62a17ae | 189 | rn = route_node_get(rip_ifaddr_table, p); |
190 | rn->info = ifp; | |
191 | return 0; | |
718e3744 | 192 | } |
193 | ||
d62a17ae | 194 | static int rip_snmp_ifaddr_del(struct connected *ifc) |
718e3744 | 195 | { |
d62a17ae | 196 | struct interface *ifp = ifc->ifp; |
197 | struct prefix *p; | |
198 | struct route_node *rn; | |
199 | struct interface *i; | |
200 | ||
201 | p = ifc->address; | |
202 | ||
203 | if (p->family != AF_INET) | |
204 | return 0; | |
205 | ||
206 | rn = route_node_lookup(rip_ifaddr_table, p); | |
207 | if (!rn) | |
208 | return 0; | |
209 | i = rn->info; | |
47e5a60f | 210 | if (!strncmp(i->name, ifp->name, INTERFACE_NAMSIZ)) { |
d62a17ae | 211 | rn->info = NULL; |
212 | route_unlock_node(rn); | |
213 | route_unlock_node(rn); | |
214 | } | |
215 | return 0; | |
718e3744 | 216 | } |
217 | ||
d62a17ae | 218 | static struct interface *rip_ifaddr_lookup_next(struct in_addr *addr) |
718e3744 | 219 | { |
d62a17ae | 220 | struct prefix_ipv4 p; |
221 | struct route_node *rn; | |
222 | struct interface *ifp; | |
223 | ||
224 | p.family = AF_INET; | |
225 | p.prefixlen = IPV4_MAX_BITLEN; | |
226 | p.prefix = *addr; | |
227 | ||
228 | rn = route_node_get(rip_ifaddr_table, (struct prefix *)&p); | |
229 | ||
230 | for (rn = route_next(rn); rn; rn = route_next(rn)) | |
231 | if (rn->info) | |
232 | break; | |
233 | ||
234 | if (rn && rn->info) { | |
235 | ifp = rn->info; | |
236 | *addr = rn->p.u.prefix4; | |
237 | route_unlock_node(rn); | |
238 | return ifp; | |
239 | } | |
240 | return NULL; | |
718e3744 | 241 | } |
242 | ||
d62a17ae | 243 | static struct interface *rip2IfLookup(struct variable *v, oid name[], |
244 | size_t *length, struct in_addr *addr, | |
245 | int exact) | |
718e3744 | 246 | { |
d62a17ae | 247 | int len; |
248 | struct interface *ifp; | |
718e3744 | 249 | |
d62a17ae | 250 | if (exact) { |
251 | /* Check the length. */ | |
252 | if (*length - v->namelen != sizeof(struct in_addr)) | |
253 | return NULL; | |
718e3744 | 254 | |
d62a17ae | 255 | oid2in_addr(name + v->namelen, sizeof(struct in_addr), addr); |
718e3744 | 256 | |
d62a17ae | 257 | return if_lookup_exact_address((void *)addr, AF_INET, |
258 | VRF_DEFAULT); | |
259 | } else { | |
260 | len = *length - v->namelen; | |
261 | if (len > 4) | |
262 | len = 4; | |
718e3744 | 263 | |
d62a17ae | 264 | oid2in_addr(name + v->namelen, len, addr); |
718e3744 | 265 | |
d62a17ae | 266 | ifp = rip_ifaddr_lookup_next(addr); |
718e3744 | 267 | |
d62a17ae | 268 | if (ifp == NULL) |
269 | return NULL; | |
718e3744 | 270 | |
d62a17ae | 271 | oid_copy_addr(name + v->namelen, addr, sizeof(struct in_addr)); |
718e3744 | 272 | |
d62a17ae | 273 | *length = v->namelen + sizeof(struct in_addr); |
718e3744 | 274 | |
d62a17ae | 275 | return ifp; |
276 | } | |
718e3744 | 277 | return NULL; |
d62a17ae | 278 | } |
718e3744 | 279 | |
d62a17ae | 280 | static struct rip_peer *rip2PeerLookup(struct variable *v, oid name[], |
281 | size_t *length, struct in_addr *addr, | |
282 | int exact) | |
283 | { | |
284 | int len; | |
285 | struct rip_peer *peer; | |
286 | ||
29e897ad RW |
287 | if (!rip) |
288 | return NULL; | |
289 | ||
d62a17ae | 290 | if (exact) { |
291 | /* Check the length. */ | |
292 | if (*length - v->namelen != sizeof(struct in_addr) + 1) | |
293 | return NULL; | |
294 | ||
295 | oid2in_addr(name + v->namelen, sizeof(struct in_addr), addr); | |
296 | ||
297 | peer = rip_peer_lookup(addr); | |
298 | ||
299 | if (peer->domain | |
300 | == (int)name[v->namelen + sizeof(struct in_addr)]) | |
301 | return peer; | |
302 | ||
303 | return NULL; | |
304 | } else { | |
305 | len = *length - v->namelen; | |
306 | if (len > 4) | |
307 | len = 4; | |
308 | ||
309 | oid2in_addr(name + v->namelen, len, addr); | |
310 | ||
311 | len = *length - v->namelen; | |
312 | peer = rip_peer_lookup(addr); | |
313 | if (peer) { | |
314 | if ((len < (int)sizeof(struct in_addr) + 1) | |
315 | || (peer->domain | |
316 | > (int)name[v->namelen | |
317 | + sizeof(struct in_addr)])) { | |
318 | oid_copy_addr(name + v->namelen, &peer->addr, | |
319 | sizeof(struct in_addr)); | |
320 | name[v->namelen + sizeof(struct in_addr)] = | |
321 | peer->domain; | |
322 | *length = | |
323 | sizeof(struct in_addr) + v->namelen + 1; | |
324 | return peer; | |
325 | } | |
326 | } | |
327 | peer = rip_peer_lookup_next(addr); | |
328 | ||
329 | if (!peer) | |
330 | return NULL; | |
331 | ||
332 | oid_copy_addr(name + v->namelen, &peer->addr, | |
333 | sizeof(struct in_addr)); | |
334 | name[v->namelen + sizeof(struct in_addr)] = peer->domain; | |
335 | *length = sizeof(struct in_addr) + v->namelen + 1; | |
336 | ||
337 | return peer; | |
338 | } | |
718e3744 | 339 | return NULL; |
718e3744 | 340 | } |
341 | ||
d7c0a89a QY |
342 | static uint8_t *rip2IfStatEntry(struct variable *v, oid name[], size_t *length, |
343 | int exact, size_t *var_len, | |
344 | WriteMethod **write_method) | |
718e3744 | 345 | { |
d62a17ae | 346 | struct interface *ifp; |
347 | struct rip_interface *ri; | |
348 | static struct in_addr addr; | |
349 | static long valid = SNMP_VALID; | |
350 | ||
351 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
352 | == MATCH_FAILED) | |
353 | return NULL; | |
354 | ||
355 | memset(&addr, 0, sizeof(struct in_addr)); | |
356 | ||
357 | /* Lookup interface. */ | |
358 | ifp = rip2IfLookup(v, name, length, &addr, exact); | |
359 | if (!ifp) | |
360 | return NULL; | |
361 | ||
362 | /* Fetch rip_interface information. */ | |
363 | ri = ifp->info; | |
364 | ||
365 | switch (v->magic) { | |
366 | case RIP2IFSTATADDRESS: | |
367 | return SNMP_IPADDRESS(addr); | |
368 | break; | |
369 | case RIP2IFSTATRCVBADPACKETS: | |
370 | *var_len = sizeof(long); | |
d7c0a89a | 371 | return (uint8_t *)&ri->recv_badpackets; |
d62a17ae | 372 | |
373 | case RIP2IFSTATRCVBADROUTES: | |
374 | *var_len = sizeof(long); | |
d7c0a89a | 375 | return (uint8_t *)&ri->recv_badroutes; |
d62a17ae | 376 | |
377 | case RIP2IFSTATSENTUPDATES: | |
378 | *var_len = sizeof(long); | |
d7c0a89a | 379 | return (uint8_t *)&ri->sent_updates; |
d62a17ae | 380 | |
381 | case RIP2IFSTATSTATUS: | |
382 | *var_len = sizeof(long); | |
383 | v->type = ASN_INTEGER; | |
d7c0a89a | 384 | return (uint8_t *)&valid; |
d62a17ae | 385 | |
386 | default: | |
387 | return NULL; | |
388 | } | |
389 | return NULL; | |
718e3744 | 390 | } |
391 | ||
d62a17ae | 392 | static long rip2IfConfSend(struct rip_interface *ri) |
718e3744 | 393 | { |
394 | #define doNotSend 1 | |
395 | #define ripVersion1 2 | |
396 | #define rip1Compatible 3 | |
397 | #define ripVersion2 4 | |
398 | #define ripV1Demand 5 | |
399 | #define ripV2Demand 6 | |
400 | ||
d62a17ae | 401 | if (!ri->running) |
402 | return doNotSend; | |
403 | ||
404 | if (ri->ri_send & RIPv2) | |
405 | return ripVersion2; | |
406 | else if (ri->ri_send & RIPv1) | |
407 | return ripVersion1; | |
408 | else if (rip) { | |
409 | if (rip->version_send == RIPv2) | |
410 | return ripVersion2; | |
411 | else if (rip->version_send == RIPv1) | |
412 | return ripVersion1; | |
413 | } | |
414 | return doNotSend; | |
718e3744 | 415 | } |
416 | ||
d62a17ae | 417 | static long rip2IfConfReceive(struct rip_interface *ri) |
718e3744 | 418 | { |
419 | #define rip1 1 | |
420 | #define rip2 2 | |
421 | #define rip1OrRip2 3 | |
422 | #define doNotReceive 4 | |
423 | ||
d62a17ae | 424 | int recvv; |
425 | ||
426 | if (!ri->running) | |
427 | return doNotReceive; | |
428 | ||
429 | recvv = (ri->ri_receive == RI_RIP_UNSPEC) ? rip->version_recv | |
430 | : ri->ri_receive; | |
431 | if (recvv == RI_RIP_VERSION_1_AND_2) | |
432 | return rip1OrRip2; | |
433 | else if (recvv & RIPv2) | |
434 | return rip2; | |
435 | else if (recvv & RIPv1) | |
436 | return rip1; | |
437 | else | |
438 | return doNotReceive; | |
718e3744 | 439 | } |
440 | ||
d7c0a89a QY |
441 | static uint8_t *rip2IfConfAddress(struct variable *v, oid name[], |
442 | size_t *length, int exact, size_t *val_len, | |
443 | WriteMethod **write_method) | |
718e3744 | 444 | { |
d62a17ae | 445 | static struct in_addr addr; |
446 | static long valid = SNMP_INVALID; | |
447 | static long domain = 0; | |
448 | static long config = 0; | |
d7c0a89a | 449 | static unsigned int auth = 0; |
d62a17ae | 450 | struct interface *ifp; |
451 | struct rip_interface *ri; | |
452 | ||
453 | if (smux_header_table(v, name, length, exact, val_len, write_method) | |
454 | == MATCH_FAILED) | |
455 | return NULL; | |
456 | ||
457 | memset(&addr, 0, sizeof(struct in_addr)); | |
458 | ||
459 | /* Lookup interface. */ | |
460 | ifp = rip2IfLookup(v, name, length, &addr, exact); | |
461 | if (!ifp) | |
462 | return NULL; | |
463 | ||
464 | /* Fetch rip_interface information. */ | |
465 | ri = ifp->info; | |
466 | ||
467 | switch (v->magic) { | |
468 | case RIP2IFCONFADDRESS: | |
469 | *val_len = sizeof(struct in_addr); | |
d7c0a89a | 470 | return (uint8_t *)&addr; |
d62a17ae | 471 | |
472 | case RIP2IFCONFDOMAIN: | |
473 | *val_len = 2; | |
d7c0a89a | 474 | return (uint8_t *)&domain; |
d62a17ae | 475 | |
476 | case RIP2IFCONFAUTHTYPE: | |
477 | auth = ri->auth_type; | |
478 | *val_len = sizeof(long); | |
479 | v->type = ASN_INTEGER; | |
d7c0a89a | 480 | return (uint8_t *)&auth; |
d62a17ae | 481 | |
482 | case RIP2IFCONFAUTHKEY: | |
483 | *val_len = 0; | |
d7c0a89a | 484 | return (uint8_t *)&domain; |
d62a17ae | 485 | case RIP2IFCONFSEND: |
486 | config = rip2IfConfSend(ri); | |
487 | *val_len = sizeof(long); | |
488 | v->type = ASN_INTEGER; | |
d7c0a89a | 489 | return (uint8_t *)&config; |
d62a17ae | 490 | case RIP2IFCONFRECEIVE: |
491 | config = rip2IfConfReceive(ri); | |
492 | *val_len = sizeof(long); | |
493 | v->type = ASN_INTEGER; | |
d7c0a89a | 494 | return (uint8_t *)&config; |
d62a17ae | 495 | |
496 | case RIP2IFCONFDEFAULTMETRIC: | |
497 | *val_len = sizeof(long); | |
498 | v->type = ASN_INTEGER; | |
d7c0a89a | 499 | return (uint8_t *)&ifp->metric; |
d62a17ae | 500 | case RIP2IFCONFSTATUS: |
501 | *val_len = sizeof(long); | |
502 | v->type = ASN_INTEGER; | |
d7c0a89a | 503 | return (uint8_t *)&valid; |
d62a17ae | 504 | case RIP2IFCONFSRCADDRESS: |
505 | *val_len = sizeof(struct in_addr); | |
d7c0a89a | 506 | return (uint8_t *)&addr; |
d62a17ae | 507 | |
508 | default: | |
509 | return NULL; | |
510 | } | |
511 | return NULL; | |
718e3744 | 512 | } |
513 | ||
d7c0a89a QY |
514 | static uint8_t *rip2PeerTable(struct variable *v, oid name[], size_t *length, |
515 | int exact, size_t *val_len, | |
516 | WriteMethod **write_method) | |
718e3744 | 517 | { |
d62a17ae | 518 | static struct in_addr addr; |
519 | static int domain = 0; | |
520 | static int version; | |
521 | /* static time_t uptime; */ | |
522 | ||
523 | struct rip_peer *peer; | |
524 | ||
525 | if (smux_header_table(v, name, length, exact, val_len, write_method) | |
526 | == MATCH_FAILED) | |
527 | return NULL; | |
528 | ||
529 | memset(&addr, 0, sizeof(struct in_addr)); | |
530 | ||
531 | /* Lookup interface. */ | |
532 | peer = rip2PeerLookup(v, name, length, &addr, exact); | |
533 | if (!peer) | |
534 | return NULL; | |
535 | ||
536 | switch (v->magic) { | |
537 | case RIP2PEERADDRESS: | |
538 | *val_len = sizeof(struct in_addr); | |
d7c0a89a | 539 | return (uint8_t *)&peer->addr; |
d62a17ae | 540 | |
541 | case RIP2PEERDOMAIN: | |
542 | *val_len = 2; | |
d7c0a89a | 543 | return (uint8_t *)&domain; |
d62a17ae | 544 | |
545 | case RIP2PEERLASTUPDATE: | |
718e3744 | 546 | #if 0 |
547 | /* We don't know the SNMP agent startup time. We have two choices here: | |
548 | * - assume ripd startup time equals SNMP agent startup time | |
549 | * - don't support this variable, at all | |
550 | * Currently, we do the latter... | |
551 | */ | |
552 | *val_len = sizeof (time_t); | |
553 | uptime = peer->uptime; /* now - snmp_agent_startup - peer->uptime */ | |
d7c0a89a | 554 | return (uint8_t *) &uptime; |
718e3744 | 555 | #else |
d7c0a89a | 556 | return (uint8_t *)NULL; |
718e3744 | 557 | #endif |
558 | ||
d62a17ae | 559 | case RIP2PEERVERSION: |
560 | *val_len = sizeof(int); | |
561 | version = peer->version; | |
d7c0a89a | 562 | return (uint8_t *)&version; |
718e3744 | 563 | |
d62a17ae | 564 | case RIP2PEERRCVBADPACKETS: |
565 | *val_len = sizeof(int); | |
d7c0a89a | 566 | return (uint8_t *)&peer->recv_badpackets; |
718e3744 | 567 | |
d62a17ae | 568 | case RIP2PEERRCVBADROUTES: |
569 | *val_len = sizeof(int); | |
d7c0a89a | 570 | return (uint8_t *)&peer->recv_badroutes; |
718e3744 | 571 | |
d62a17ae | 572 | default: |
573 | return NULL; | |
574 | } | |
575 | return NULL; | |
718e3744 | 576 | } |
577 | ||
578 | /* Register RIPv2-MIB. */ | |
d62a17ae | 579 | static int rip_snmp_init(struct thread_master *master) |
718e3744 | 580 | { |
d62a17ae | 581 | rip_ifaddr_table = route_table_init(); |
718e3744 | 582 | |
d62a17ae | 583 | smux_init(master); |
584 | REGISTER_MIB("mibII/rip", rip_variables, variable, rip_oid); | |
585 | return 0; | |
718e3744 | 586 | } |
5986b66b | 587 | |
d62a17ae | 588 | static int rip_snmp_module_init(void) |
5986b66b | 589 | { |
d62a17ae | 590 | hook_register(rip_ifaddr_add, rip_snmp_ifaddr_add); |
591 | hook_register(rip_ifaddr_del, rip_snmp_ifaddr_del); | |
5986b66b | 592 | |
d62a17ae | 593 | hook_register(frr_late_init, rip_snmp_init); |
594 | return 0; | |
5986b66b DL |
595 | } |
596 | ||
d62a17ae | 597 | FRR_MODULE_SETUP(.name = "ripd_snmp", .version = FRR_VERSION, |
598 | .description = "ripd AgentX SNMP module", | |
599 | .init = rip_snmp_module_init, ) |