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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 | { |
045c5389 RW |
159 | struct rip *rip; |
160 | ||
d62a17ae | 161 | if (smux_header_generic(v, name, length, exact, var_len, write_method) |
162 | == MATCH_FAILED) | |
163 | return NULL; | |
164 | ||
045c5389 | 165 | rip = rip_lookup_by_vrf_id(VRF_DEFAULT); |
c08a2107 RW |
166 | if (!rip) |
167 | return NULL; | |
168 | ||
d62a17ae | 169 | /* Retrun global counter. */ |
170 | switch (v->magic) { | |
171 | case RIP2GLOBALROUTECHANGES: | |
c08a2107 | 172 | return SNMP_INTEGER(rip->counters.route_changes); |
d62a17ae | 173 | case RIP2GLOBALQUERIES: |
c08a2107 | 174 | return SNMP_INTEGER(rip->counters.queries); |
d62a17ae | 175 | default: |
176 | return NULL; | |
d62a17ae | 177 | } |
178 | return NULL; | |
718e3744 | 179 | } |
180 | ||
d62a17ae | 181 | static int rip_snmp_ifaddr_add(struct connected *ifc) |
718e3744 | 182 | { |
d62a17ae | 183 | struct interface *ifp = ifc->ifp; |
184 | struct prefix *p; | |
185 | struct route_node *rn; | |
718e3744 | 186 | |
d62a17ae | 187 | p = ifc->address; |
718e3744 | 188 | |
d62a17ae | 189 | if (p->family != AF_INET) |
190 | return 0; | |
718e3744 | 191 | |
d62a17ae | 192 | rn = route_node_get(rip_ifaddr_table, p); |
193 | rn->info = ifp; | |
194 | return 0; | |
718e3744 | 195 | } |
196 | ||
d62a17ae | 197 | static int rip_snmp_ifaddr_del(struct connected *ifc) |
718e3744 | 198 | { |
d62a17ae | 199 | struct interface *ifp = ifc->ifp; |
200 | struct prefix *p; | |
201 | struct route_node *rn; | |
202 | struct interface *i; | |
203 | ||
204 | p = ifc->address; | |
205 | ||
206 | if (p->family != AF_INET) | |
207 | return 0; | |
208 | ||
209 | rn = route_node_lookup(rip_ifaddr_table, p); | |
210 | if (!rn) | |
211 | return 0; | |
212 | i = rn->info; | |
47e5a60f | 213 | if (!strncmp(i->name, ifp->name, INTERFACE_NAMSIZ)) { |
d62a17ae | 214 | rn->info = NULL; |
215 | route_unlock_node(rn); | |
216 | route_unlock_node(rn); | |
217 | } | |
218 | return 0; | |
718e3744 | 219 | } |
220 | ||
d62a17ae | 221 | static struct interface *rip_ifaddr_lookup_next(struct in_addr *addr) |
718e3744 | 222 | { |
d62a17ae | 223 | struct prefix_ipv4 p; |
224 | struct route_node *rn; | |
225 | struct interface *ifp; | |
226 | ||
227 | p.family = AF_INET; | |
228 | p.prefixlen = IPV4_MAX_BITLEN; | |
229 | p.prefix = *addr; | |
230 | ||
231 | rn = route_node_get(rip_ifaddr_table, (struct prefix *)&p); | |
232 | ||
233 | for (rn = route_next(rn); rn; rn = route_next(rn)) | |
234 | if (rn->info) | |
235 | break; | |
236 | ||
237 | if (rn && rn->info) { | |
238 | ifp = rn->info; | |
239 | *addr = rn->p.u.prefix4; | |
240 | route_unlock_node(rn); | |
241 | return ifp; | |
242 | } | |
243 | return NULL; | |
718e3744 | 244 | } |
245 | ||
d62a17ae | 246 | static struct interface *rip2IfLookup(struct variable *v, oid name[], |
247 | size_t *length, struct in_addr *addr, | |
248 | int exact) | |
718e3744 | 249 | { |
d62a17ae | 250 | int len; |
251 | struct interface *ifp; | |
718e3744 | 252 | |
d62a17ae | 253 | if (exact) { |
254 | /* Check the length. */ | |
255 | if (*length - v->namelen != sizeof(struct in_addr)) | |
256 | return NULL; | |
718e3744 | 257 | |
d62a17ae | 258 | oid2in_addr(name + v->namelen, sizeof(struct in_addr), addr); |
718e3744 | 259 | |
d62a17ae | 260 | return if_lookup_exact_address((void *)addr, AF_INET, |
261 | VRF_DEFAULT); | |
262 | } else { | |
263 | len = *length - v->namelen; | |
264 | if (len > 4) | |
265 | len = 4; | |
718e3744 | 266 | |
d62a17ae | 267 | oid2in_addr(name + v->namelen, len, addr); |
718e3744 | 268 | |
d62a17ae | 269 | ifp = rip_ifaddr_lookup_next(addr); |
718e3744 | 270 | |
d62a17ae | 271 | if (ifp == NULL) |
272 | return NULL; | |
718e3744 | 273 | |
d62a17ae | 274 | oid_copy_addr(name + v->namelen, addr, sizeof(struct in_addr)); |
718e3744 | 275 | |
d62a17ae | 276 | *length = v->namelen + sizeof(struct in_addr); |
718e3744 | 277 | |
d62a17ae | 278 | return ifp; |
279 | } | |
718e3744 | 280 | return NULL; |
d62a17ae | 281 | } |
718e3744 | 282 | |
d62a17ae | 283 | static struct rip_peer *rip2PeerLookup(struct variable *v, oid name[], |
284 | size_t *length, struct in_addr *addr, | |
285 | int exact) | |
286 | { | |
045c5389 | 287 | struct rip *rip; |
d62a17ae | 288 | int len; |
289 | struct rip_peer *peer; | |
290 | ||
045c5389 | 291 | rip = rip_lookup_by_vrf_id(VRF_DEFAULT); |
29e897ad RW |
292 | if (!rip) |
293 | return NULL; | |
294 | ||
d62a17ae | 295 | if (exact) { |
296 | /* Check the length. */ | |
297 | if (*length - v->namelen != sizeof(struct in_addr) + 1) | |
298 | return NULL; | |
299 | ||
300 | oid2in_addr(name + v->namelen, sizeof(struct in_addr), addr); | |
301 | ||
045c5389 | 302 | peer = rip_peer_lookup(rip, addr); |
d62a17ae | 303 | |
304 | if (peer->domain | |
305 | == (int)name[v->namelen + sizeof(struct in_addr)]) | |
306 | return peer; | |
307 | ||
308 | return NULL; | |
309 | } else { | |
310 | len = *length - v->namelen; | |
311 | if (len > 4) | |
312 | len = 4; | |
313 | ||
314 | oid2in_addr(name + v->namelen, len, addr); | |
315 | ||
316 | len = *length - v->namelen; | |
045c5389 | 317 | peer = rip_peer_lookup(rip, addr); |
d62a17ae | 318 | if (peer) { |
319 | if ((len < (int)sizeof(struct in_addr) + 1) | |
320 | || (peer->domain | |
321 | > (int)name[v->namelen | |
322 | + sizeof(struct in_addr)])) { | |
323 | oid_copy_addr(name + v->namelen, &peer->addr, | |
324 | sizeof(struct in_addr)); | |
325 | name[v->namelen + sizeof(struct in_addr)] = | |
326 | peer->domain; | |
327 | *length = | |
328 | sizeof(struct in_addr) + v->namelen + 1; | |
329 | return peer; | |
330 | } | |
331 | } | |
045c5389 | 332 | peer = rip_peer_lookup_next(rip, addr); |
d62a17ae | 333 | |
334 | if (!peer) | |
335 | return NULL; | |
336 | ||
337 | oid_copy_addr(name + v->namelen, &peer->addr, | |
338 | sizeof(struct in_addr)); | |
339 | name[v->namelen + sizeof(struct in_addr)] = peer->domain; | |
340 | *length = sizeof(struct in_addr) + v->namelen + 1; | |
341 | ||
342 | return peer; | |
343 | } | |
718e3744 | 344 | return NULL; |
718e3744 | 345 | } |
346 | ||
d7c0a89a QY |
347 | static uint8_t *rip2IfStatEntry(struct variable *v, oid name[], size_t *length, |
348 | int exact, size_t *var_len, | |
349 | WriteMethod **write_method) | |
718e3744 | 350 | { |
d62a17ae | 351 | struct interface *ifp; |
352 | struct rip_interface *ri; | |
353 | static struct in_addr addr; | |
354 | static long valid = SNMP_VALID; | |
355 | ||
356 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
357 | == MATCH_FAILED) | |
358 | return NULL; | |
359 | ||
360 | memset(&addr, 0, sizeof(struct in_addr)); | |
361 | ||
362 | /* Lookup interface. */ | |
363 | ifp = rip2IfLookup(v, name, length, &addr, exact); | |
364 | if (!ifp) | |
365 | return NULL; | |
366 | ||
367 | /* Fetch rip_interface information. */ | |
368 | ri = ifp->info; | |
369 | ||
370 | switch (v->magic) { | |
371 | case RIP2IFSTATADDRESS: | |
372 | return SNMP_IPADDRESS(addr); | |
d62a17ae | 373 | case RIP2IFSTATRCVBADPACKETS: |
374 | *var_len = sizeof(long); | |
d7c0a89a | 375 | return (uint8_t *)&ri->recv_badpackets; |
d62a17ae | 376 | |
377 | case RIP2IFSTATRCVBADROUTES: | |
378 | *var_len = sizeof(long); | |
d7c0a89a | 379 | return (uint8_t *)&ri->recv_badroutes; |
d62a17ae | 380 | |
381 | case RIP2IFSTATSENTUPDATES: | |
382 | *var_len = sizeof(long); | |
d7c0a89a | 383 | return (uint8_t *)&ri->sent_updates; |
d62a17ae | 384 | |
385 | case RIP2IFSTATSTATUS: | |
386 | *var_len = sizeof(long); | |
387 | v->type = ASN_INTEGER; | |
d7c0a89a | 388 | return (uint8_t *)&valid; |
d62a17ae | 389 | |
390 | default: | |
391 | return NULL; | |
392 | } | |
393 | return NULL; | |
718e3744 | 394 | } |
395 | ||
d62a17ae | 396 | static long rip2IfConfSend(struct rip_interface *ri) |
718e3744 | 397 | { |
398 | #define doNotSend 1 | |
399 | #define ripVersion1 2 | |
400 | #define rip1Compatible 3 | |
401 | #define ripVersion2 4 | |
402 | #define ripV1Demand 5 | |
403 | #define ripV2Demand 6 | |
404 | ||
d62a17ae | 405 | if (!ri->running) |
406 | return doNotSend; | |
407 | ||
408 | if (ri->ri_send & RIPv2) | |
409 | return ripVersion2; | |
410 | else if (ri->ri_send & RIPv1) | |
411 | return ripVersion1; | |
045c5389 RW |
412 | else if (ri->rip) { |
413 | if (ri->rip->version_send == RIPv2) | |
d62a17ae | 414 | return ripVersion2; |
045c5389 | 415 | else if (ri->rip->version_send == RIPv1) |
d62a17ae | 416 | return ripVersion1; |
417 | } | |
418 | return doNotSend; | |
718e3744 | 419 | } |
420 | ||
d62a17ae | 421 | static long rip2IfConfReceive(struct rip_interface *ri) |
718e3744 | 422 | { |
423 | #define rip1 1 | |
424 | #define rip2 2 | |
425 | #define rip1OrRip2 3 | |
426 | #define doNotReceive 4 | |
427 | ||
d62a17ae | 428 | int recvv; |
429 | ||
430 | if (!ri->running) | |
431 | return doNotReceive; | |
432 | ||
045c5389 | 433 | recvv = (ri->ri_receive == RI_RIP_UNSPEC) ? ri->rip->version_recv |
d62a17ae | 434 | : ri->ri_receive; |
435 | if (recvv == RI_RIP_VERSION_1_AND_2) | |
436 | return rip1OrRip2; | |
437 | else if (recvv & RIPv2) | |
438 | return rip2; | |
439 | else if (recvv & RIPv1) | |
440 | return rip1; | |
441 | else | |
442 | return doNotReceive; | |
718e3744 | 443 | } |
444 | ||
d7c0a89a QY |
445 | static uint8_t *rip2IfConfAddress(struct variable *v, oid name[], |
446 | size_t *length, int exact, size_t *val_len, | |
447 | WriteMethod **write_method) | |
718e3744 | 448 | { |
d62a17ae | 449 | static struct in_addr addr; |
450 | static long valid = SNMP_INVALID; | |
451 | static long domain = 0; | |
452 | static long config = 0; | |
d7c0a89a | 453 | static unsigned int auth = 0; |
d62a17ae | 454 | struct interface *ifp; |
455 | struct rip_interface *ri; | |
456 | ||
457 | if (smux_header_table(v, name, length, exact, val_len, write_method) | |
458 | == MATCH_FAILED) | |
459 | return NULL; | |
460 | ||
461 | memset(&addr, 0, sizeof(struct in_addr)); | |
462 | ||
463 | /* Lookup interface. */ | |
464 | ifp = rip2IfLookup(v, name, length, &addr, exact); | |
465 | if (!ifp) | |
466 | return NULL; | |
467 | ||
468 | /* Fetch rip_interface information. */ | |
469 | ri = ifp->info; | |
470 | ||
471 | switch (v->magic) { | |
472 | case RIP2IFCONFADDRESS: | |
473 | *val_len = sizeof(struct in_addr); | |
d7c0a89a | 474 | return (uint8_t *)&addr; |
d62a17ae | 475 | |
476 | case RIP2IFCONFDOMAIN: | |
477 | *val_len = 2; | |
d7c0a89a | 478 | return (uint8_t *)&domain; |
d62a17ae | 479 | |
480 | case RIP2IFCONFAUTHTYPE: | |
481 | auth = ri->auth_type; | |
482 | *val_len = sizeof(long); | |
483 | v->type = ASN_INTEGER; | |
d7c0a89a | 484 | return (uint8_t *)&auth; |
d62a17ae | 485 | |
486 | case RIP2IFCONFAUTHKEY: | |
487 | *val_len = 0; | |
d7c0a89a | 488 | return (uint8_t *)&domain; |
d62a17ae | 489 | case RIP2IFCONFSEND: |
490 | config = rip2IfConfSend(ri); | |
491 | *val_len = sizeof(long); | |
492 | v->type = ASN_INTEGER; | |
d7c0a89a | 493 | return (uint8_t *)&config; |
d62a17ae | 494 | case RIP2IFCONFRECEIVE: |
495 | config = rip2IfConfReceive(ri); | |
496 | *val_len = sizeof(long); | |
497 | v->type = ASN_INTEGER; | |
d7c0a89a | 498 | return (uint8_t *)&config; |
d62a17ae | 499 | |
500 | case RIP2IFCONFDEFAULTMETRIC: | |
501 | *val_len = sizeof(long); | |
502 | v->type = ASN_INTEGER; | |
d7c0a89a | 503 | return (uint8_t *)&ifp->metric; |
d62a17ae | 504 | case RIP2IFCONFSTATUS: |
505 | *val_len = sizeof(long); | |
506 | v->type = ASN_INTEGER; | |
d7c0a89a | 507 | return (uint8_t *)&valid; |
d62a17ae | 508 | case RIP2IFCONFSRCADDRESS: |
509 | *val_len = sizeof(struct in_addr); | |
d7c0a89a | 510 | return (uint8_t *)&addr; |
d62a17ae | 511 | |
512 | default: | |
513 | return NULL; | |
514 | } | |
515 | return NULL; | |
718e3744 | 516 | } |
517 | ||
d7c0a89a QY |
518 | static uint8_t *rip2PeerTable(struct variable *v, oid name[], size_t *length, |
519 | int exact, size_t *val_len, | |
520 | WriteMethod **write_method) | |
718e3744 | 521 | { |
d62a17ae | 522 | static struct in_addr addr; |
523 | static int domain = 0; | |
524 | static int version; | |
525 | /* static time_t uptime; */ | |
526 | ||
527 | struct rip_peer *peer; | |
528 | ||
529 | if (smux_header_table(v, name, length, exact, val_len, write_method) | |
530 | == MATCH_FAILED) | |
531 | return NULL; | |
532 | ||
533 | memset(&addr, 0, sizeof(struct in_addr)); | |
534 | ||
535 | /* Lookup interface. */ | |
536 | peer = rip2PeerLookup(v, name, length, &addr, exact); | |
537 | if (!peer) | |
538 | return NULL; | |
539 | ||
540 | switch (v->magic) { | |
541 | case RIP2PEERADDRESS: | |
542 | *val_len = sizeof(struct in_addr); | |
d7c0a89a | 543 | return (uint8_t *)&peer->addr; |
d62a17ae | 544 | |
545 | case RIP2PEERDOMAIN: | |
546 | *val_len = 2; | |
d7c0a89a | 547 | return (uint8_t *)&domain; |
d62a17ae | 548 | |
549 | case RIP2PEERLASTUPDATE: | |
c258527b | 550 | #if 0 |
718e3744 | 551 | /* We don't know the SNMP agent startup time. We have two choices here: |
552 | * - assume ripd startup time equals SNMP agent startup time | |
553 | * - don't support this variable, at all | |
554 | * Currently, we do the latter... | |
555 | */ | |
0d6f7fd6 | 556 | *val_len = sizeof(time_t); |
718e3744 | 557 | uptime = peer->uptime; /* now - snmp_agent_startup - peer->uptime */ |
d7c0a89a | 558 | return (uint8_t *) &uptime; |
718e3744 | 559 | #else |
d7c0a89a | 560 | return (uint8_t *)NULL; |
718e3744 | 561 | #endif |
562 | ||
d62a17ae | 563 | case RIP2PEERVERSION: |
564 | *val_len = sizeof(int); | |
565 | version = peer->version; | |
d7c0a89a | 566 | return (uint8_t *)&version; |
718e3744 | 567 | |
d62a17ae | 568 | case RIP2PEERRCVBADPACKETS: |
569 | *val_len = sizeof(int); | |
d7c0a89a | 570 | return (uint8_t *)&peer->recv_badpackets; |
718e3744 | 571 | |
d62a17ae | 572 | case RIP2PEERRCVBADROUTES: |
573 | *val_len = sizeof(int); | |
d7c0a89a | 574 | return (uint8_t *)&peer->recv_badroutes; |
718e3744 | 575 | |
d62a17ae | 576 | default: |
577 | return NULL; | |
578 | } | |
579 | return NULL; | |
718e3744 | 580 | } |
581 | ||
582 | /* Register RIPv2-MIB. */ | |
d62a17ae | 583 | static int rip_snmp_init(struct thread_master *master) |
718e3744 | 584 | { |
d62a17ae | 585 | rip_ifaddr_table = route_table_init(); |
718e3744 | 586 | |
d62a17ae | 587 | smux_init(master); |
588 | REGISTER_MIB("mibII/rip", rip_variables, variable, rip_oid); | |
589 | return 0; | |
718e3744 | 590 | } |
5986b66b | 591 | |
d62a17ae | 592 | static int rip_snmp_module_init(void) |
5986b66b | 593 | { |
d62a17ae | 594 | hook_register(rip_ifaddr_add, rip_snmp_ifaddr_add); |
595 | hook_register(rip_ifaddr_del, rip_snmp_ifaddr_del); | |
5986b66b | 596 | |
d62a17ae | 597 | hook_register(frr_late_init, rip_snmp_init); |
598 | return 0; | |
5986b66b DL |
599 | } |
600 | ||
d62a17ae | 601 | FRR_MODULE_SETUP(.name = "ripd_snmp", .version = FRR_VERSION, |
602 | .description = "ripd AgentX SNMP module", | |
603 | .init = rip_snmp_module_init, ) |