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07661cb5 | 1 | /* FIB SNMP. |
718e3744 | 2 | * Copyright (C) 1999 Kunihiro Ishiguro |
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 | ||
b72ede27 FL |
21 | /* |
22 | * Currently SNMP is only running properly for MIBs in the default VRF. | |
23 | */ | |
24 | ||
718e3744 | 25 | #include <zebra.h> |
26 | ||
07661cb5 | 27 | #include <net-snmp/net-snmp-config.h> |
fb62a3ce | 28 | #include <net-snmp/net-snmp-includes.h> |
718e3744 | 29 | |
30 | #include "if.h" | |
31 | #include "log.h" | |
32 | #include "prefix.h" | |
33 | #include "command.h" | |
34 | #include "smux.h" | |
35 | #include "table.h" | |
b72ede27 | 36 | #include "vrf.h" |
5986b66b DL |
37 | #include "hook.h" |
38 | #include "libfrr.h" | |
39 | #include "version.h" | |
718e3744 | 40 | |
41 | #include "zebra/rib.h" | |
dd488a78 | 42 | #include "zebra/zserv.h" |
050ceb3b | 43 | #include "zebra/zebra_vrf.h" |
6b0655a2 | 44 | |
718e3744 | 45 | #define IPFWMIB 1,3,6,1,2,1,4,24 |
718e3744 | 46 | |
47 | /* ipForwardTable */ | |
48 | #define IPFORWARDDEST 1 | |
49 | #define IPFORWARDMASK 2 | |
50 | #define IPFORWARDPOLICY 3 | |
51 | #define IPFORWARDNEXTHOP 4 | |
52 | #define IPFORWARDIFINDEX 5 | |
53 | #define IPFORWARDTYPE 6 | |
54 | #define IPFORWARDPROTO 7 | |
55 | #define IPFORWARDAGE 8 | |
56 | #define IPFORWARDINFO 9 | |
57 | #define IPFORWARDNEXTHOPAS 10 | |
58 | #define IPFORWARDMETRIC1 11 | |
59 | #define IPFORWARDMETRIC2 12 | |
60 | #define IPFORWARDMETRIC3 13 | |
61 | #define IPFORWARDMETRIC4 14 | |
62 | #define IPFORWARDMETRIC5 15 | |
63 | ||
64 | /* ipCidrRouteTable */ | |
65 | #define IPCIDRROUTEDEST 1 | |
66 | #define IPCIDRROUTEMASK 2 | |
67 | #define IPCIDRROUTETOS 3 | |
68 | #define IPCIDRROUTENEXTHOP 4 | |
69 | #define IPCIDRROUTEIFINDEX 5 | |
70 | #define IPCIDRROUTETYPE 6 | |
71 | #define IPCIDRROUTEPROTO 7 | |
72 | #define IPCIDRROUTEAGE 8 | |
73 | #define IPCIDRROUTEINFO 9 | |
74 | #define IPCIDRROUTENEXTHOPAS 10 | |
75 | #define IPCIDRROUTEMETRIC1 11 | |
76 | #define IPCIDRROUTEMETRIC2 12 | |
77 | #define IPCIDRROUTEMETRIC3 13 | |
78 | #define IPCIDRROUTEMETRIC4 14 | |
79 | #define IPCIDRROUTEMETRIC5 15 | |
80 | #define IPCIDRROUTESTATUS 16 | |
81 | ||
82 | #define INTEGER32 ASN_INTEGER | |
83 | #define GAUGE32 ASN_GAUGE | |
84 | #define ENUMERATION ASN_INTEGER | |
85 | #define ROWSTATUS ASN_INTEGER | |
86 | #define IPADDRESS ASN_IPADDRESS | |
87 | #define OBJECTIDENTIFIER ASN_OBJECT_ID | |
6b0655a2 | 88 | |
d62a17ae | 89 | static oid ipfw_oid[] = {IPFWMIB}; |
718e3744 | 90 | |
91 | /* Hook functions. */ | |
d62a17ae | 92 | static u_char *ipFwNumber(struct variable *, oid[], size_t *, int, size_t *, |
93 | WriteMethod **); | |
94 | static u_char *ipFwTable(struct variable *, oid[], size_t *, int, size_t *, | |
95 | WriteMethod **); | |
96 | static u_char *ipCidrNumber(struct variable *, oid[], size_t *, int, size_t *, | |
97 | WriteMethod **); | |
98 | static u_char *ipCidrTable(struct variable *, oid[], size_t *, int, size_t *, | |
99 | WriteMethod **); | |
100 | ||
101 | static struct variable zebra_variables[] = { | |
102 | {0, GAUGE32, RONLY, ipFwNumber, 1, {1}}, | |
103 | {IPFORWARDDEST, IPADDRESS, RONLY, ipFwTable, 3, {2, 1, 1}}, | |
104 | {IPFORWARDMASK, IPADDRESS, RONLY, ipFwTable, 3, {2, 1, 2}}, | |
105 | {IPFORWARDPOLICY, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 3}}, | |
106 | {IPFORWARDNEXTHOP, IPADDRESS, RONLY, ipFwTable, 3, {2, 1, 4}}, | |
107 | {IPFORWARDIFINDEX, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 5}}, | |
108 | {IPFORWARDTYPE, ENUMERATION, RONLY, ipFwTable, 3, {2, 1, 6}}, | |
109 | {IPFORWARDPROTO, ENUMERATION, RONLY, ipFwTable, 3, {2, 1, 7}}, | |
110 | {IPFORWARDAGE, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 8}}, | |
111 | {IPFORWARDINFO, OBJECTIDENTIFIER, RONLY, ipFwTable, 3, {2, 1, 9}}, | |
112 | {IPFORWARDNEXTHOPAS, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 10}}, | |
113 | {IPFORWARDMETRIC1, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 11}}, | |
114 | {IPFORWARDMETRIC2, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 12}}, | |
115 | {IPFORWARDMETRIC3, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 13}}, | |
116 | {IPFORWARDMETRIC4, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 14}}, | |
117 | {IPFORWARDMETRIC5, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 15}}, | |
118 | {0, GAUGE32, RONLY, ipCidrNumber, 1, {3}}, | |
119 | {IPCIDRROUTEDEST, IPADDRESS, RONLY, ipCidrTable, 3, {4, 1, 1}}, | |
120 | {IPCIDRROUTEMASK, IPADDRESS, RONLY, ipCidrTable, 3, {4, 1, 2}}, | |
121 | {IPCIDRROUTETOS, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 3}}, | |
122 | {IPCIDRROUTENEXTHOP, IPADDRESS, RONLY, ipCidrTable, 3, {4, 1, 4}}, | |
123 | {IPCIDRROUTEIFINDEX, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 5}}, | |
124 | {IPCIDRROUTETYPE, ENUMERATION, RONLY, ipCidrTable, 3, {4, 1, 6}}, | |
125 | {IPCIDRROUTEPROTO, ENUMERATION, RONLY, ipCidrTable, 3, {4, 1, 7}}, | |
126 | {IPCIDRROUTEAGE, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 8}}, | |
127 | {IPCIDRROUTEINFO, OBJECTIDENTIFIER, RONLY, ipCidrTable, 3, {4, 1, 9}}, | |
128 | {IPCIDRROUTENEXTHOPAS, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 10}}, | |
129 | {IPCIDRROUTEMETRIC1, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 11}}, | |
130 | {IPCIDRROUTEMETRIC2, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 12}}, | |
131 | {IPCIDRROUTEMETRIC3, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 13}}, | |
132 | {IPCIDRROUTEMETRIC4, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 14}}, | |
133 | {IPCIDRROUTEMETRIC5, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 15}}, | |
134 | {IPCIDRROUTESTATUS, ROWSTATUS, RONLY, ipCidrTable, 3, {4, 1, 16}}}; | |
135 | ||
136 | ||
137 | static u_char *ipFwNumber(struct variable *v, oid objid[], size_t *objid_len, | |
138 | int exact, size_t *val_len, | |
139 | WriteMethod **write_method) | |
718e3744 | 140 | { |
d62a17ae | 141 | static int result; |
142 | struct route_table *table; | |
143 | struct route_node *rn; | |
144 | struct route_entry *re; | |
145 | ||
146 | if (smux_header_generic(v, objid, objid_len, exact, val_len, | |
147 | write_method) | |
148 | == MATCH_FAILED) | |
149 | return NULL; | |
150 | ||
151 | table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT); | |
152 | if (!table) | |
153 | return NULL; | |
154 | ||
155 | /* Return number of routing entries. */ | |
156 | result = 0; | |
157 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
158 | RNODE_FOREACH_RE(rn, re) | |
159 | result++; | |
160 | ||
161 | return (u_char *)&result; | |
718e3744 | 162 | } |
163 | ||
d62a17ae | 164 | static u_char *ipCidrNumber(struct variable *v, oid objid[], size_t *objid_len, |
165 | int exact, size_t *val_len, | |
166 | WriteMethod **write_method) | |
718e3744 | 167 | { |
d62a17ae | 168 | static int result; |
169 | struct route_table *table; | |
170 | struct route_node *rn; | |
171 | struct route_entry *re; | |
172 | ||
173 | if (smux_header_generic(v, objid, objid_len, exact, val_len, | |
174 | write_method) | |
175 | == MATCH_FAILED) | |
176 | return NULL; | |
177 | ||
178 | table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT); | |
179 | if (!table) | |
180 | return 0; | |
181 | ||
182 | /* Return number of routing entries. */ | |
183 | result = 0; | |
184 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
185 | RNODE_FOREACH_RE(rn, re) | |
186 | result++; | |
187 | ||
188 | return (u_char *)&result; | |
718e3744 | 189 | } |
190 | ||
d62a17ae | 191 | static int in_addr_cmp(u_char *p1, u_char *p2) |
718e3744 | 192 | { |
d62a17ae | 193 | int i; |
194 | ||
195 | for (i = 0; i < 4; i++) { | |
196 | if (*p1 < *p2) | |
197 | return -1; | |
198 | if (*p1 > *p2) | |
199 | return 1; | |
200 | p1++; | |
201 | p2++; | |
202 | } | |
203 | return 0; | |
718e3744 | 204 | } |
205 | ||
d62a17ae | 206 | static int in_addr_add(u_char *p, int num) |
718e3744 | 207 | { |
d62a17ae | 208 | int i, ip0; |
209 | ||
210 | ip0 = *p; | |
211 | p += 4; | |
212 | for (i = 3; 0 <= i; i--) { | |
213 | p--; | |
214 | if (*p + num > 255) { | |
215 | *p += num; | |
216 | num = 1; | |
217 | } else { | |
218 | *p += num; | |
219 | return 1; | |
220 | } | |
221 | } | |
222 | if (ip0 > *p) { | |
223 | /* ip + num > 0xffffffff */ | |
224 | return 0; | |
225 | } | |
718e3744 | 226 | |
d62a17ae | 227 | return 1; |
718e3744 | 228 | } |
229 | ||
d62a17ae | 230 | static int proto_trans(int type) |
718e3744 | 231 | { |
d62a17ae | 232 | switch (type) { |
233 | case ZEBRA_ROUTE_SYSTEM: | |
234 | return 1; /* other */ | |
235 | case ZEBRA_ROUTE_KERNEL: | |
236 | return 1; /* other */ | |
237 | case ZEBRA_ROUTE_CONNECT: | |
238 | return 2; /* local interface */ | |
239 | case ZEBRA_ROUTE_STATIC: | |
240 | return 3; /* static route */ | |
241 | case ZEBRA_ROUTE_RIP: | |
242 | return 8; /* rip */ | |
243 | case ZEBRA_ROUTE_RIPNG: | |
244 | return 1; /* shouldn't happen */ | |
245 | case ZEBRA_ROUTE_OSPF: | |
246 | return 13; /* ospf */ | |
247 | case ZEBRA_ROUTE_OSPF6: | |
248 | return 1; /* shouldn't happen */ | |
249 | case ZEBRA_ROUTE_BGP: | |
250 | return 14; /* bgp */ | |
251 | default: | |
252 | return 1; /* other */ | |
253 | } | |
718e3744 | 254 | } |
255 | ||
d62a17ae | 256 | static void check_replace(struct route_node *np2, struct route_entry *re2, |
257 | struct route_node **np, struct route_entry **re) | |
718e3744 | 258 | { |
d62a17ae | 259 | int proto, proto2; |
718e3744 | 260 | |
d62a17ae | 261 | if (!*np) { |
262 | *np = np2; | |
263 | *re = re2; | |
264 | return; | |
265 | } | |
718e3744 | 266 | |
d62a17ae | 267 | if (in_addr_cmp(&(*np)->p.u.prefix, &np2->p.u.prefix) < 0) |
268 | return; | |
269 | if (in_addr_cmp(&(*np)->p.u.prefix, &np2->p.u.prefix) > 0) { | |
270 | *np = np2; | |
271 | *re = re2; | |
272 | return; | |
273 | } | |
718e3744 | 274 | |
d62a17ae | 275 | proto = proto_trans((*re)->type); |
276 | proto2 = proto_trans(re2->type); | |
718e3744 | 277 | |
d62a17ae | 278 | if (proto2 > proto) |
279 | return; | |
280 | if (proto2 < proto) { | |
281 | *np = np2; | |
282 | *re = re2; | |
283 | return; | |
284 | } | |
718e3744 | 285 | |
d62a17ae | 286 | if (in_addr_cmp((u_char *)&(*re)->nexthop->gate.ipv4, |
287 | (u_char *)&re2->nexthop->gate.ipv4) | |
288 | <= 0) | |
289 | return; | |
718e3744 | 290 | |
d62a17ae | 291 | *np = np2; |
292 | *re = re2; | |
293 | return; | |
294 | } | |
718e3744 | 295 | |
d62a17ae | 296 | static void get_fwtable_route_node(struct variable *v, oid objid[], |
297 | size_t *objid_len, int exact, | |
298 | struct route_node **np, | |
299 | struct route_entry **re) | |
300 | { | |
301 | struct in_addr dest; | |
302 | struct route_table *table; | |
303 | struct route_node *np2; | |
304 | struct route_entry *re2; | |
305 | int proto; | |
306 | int policy; | |
307 | struct in_addr nexthop; | |
308 | u_char *pnt; | |
309 | int i; | |
310 | ||
311 | /* Init index variables */ | |
312 | ||
313 | pnt = (u_char *)&dest; | |
314 | for (i = 0; i < 4; i++) | |
315 | *pnt++ = 0; | |
718e3744 | 316 | |
d62a17ae | 317 | pnt = (u_char *)&nexthop; |
318 | for (i = 0; i < 4; i++) | |
319 | *pnt++ = 0; | |
07661cb5 | 320 | |
d62a17ae | 321 | proto = 0; |
322 | policy = 0; | |
718e3744 | 323 | |
d62a17ae | 324 | /* Init return variables */ |
718e3744 | 325 | |
d62a17ae | 326 | *np = NULL; |
327 | *re = NULL; | |
718e3744 | 328 | |
d62a17ae | 329 | /* Short circuit exact matches of wrong length */ |
718e3744 | 330 | |
d62a17ae | 331 | if (exact && (*objid_len != (unsigned)v->namelen + 10)) |
332 | return; | |
718e3744 | 333 | |
d62a17ae | 334 | table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT); |
335 | if (!table) | |
336 | return; | |
718e3744 | 337 | |
d62a17ae | 338 | /* Get INDEX information out of OID. |
339 | * ipForwardDest, ipForwardProto, ipForwardPolicy, ipForwardNextHop | |
340 | */ | |
718e3744 | 341 | |
d62a17ae | 342 | if (*objid_len > (unsigned)v->namelen) |
343 | oid2in_addr(objid + v->namelen, | |
344 | MIN(4U, *objid_len - v->namelen), &dest); | |
718e3744 | 345 | |
d62a17ae | 346 | if (*objid_len > (unsigned)v->namelen + 4) |
347 | proto = objid[v->namelen + 4]; | |
348 | ||
349 | if (*objid_len > (unsigned)v->namelen + 5) | |
350 | policy = objid[v->namelen + 5]; | |
351 | ||
352 | if (*objid_len > (unsigned)v->namelen + 6) | |
353 | oid2in_addr(objid + v->namelen + 6, | |
354 | MIN(4U, *objid_len - v->namelen - 6), &nexthop); | |
355 | ||
356 | /* Apply GETNEXT on not exact search */ | |
357 | ||
358 | if (!exact && (*objid_len >= (unsigned)v->namelen + 10)) { | |
359 | if (!in_addr_add((u_char *)&nexthop, 1)) | |
360 | return; | |
361 | } | |
362 | ||
363 | /* For exact: search matching entry in rib table. */ | |
364 | ||
365 | if (exact) { | |
366 | if (policy) /* Not supported (yet?) */ | |
367 | return; | |
368 | for (*np = route_top(table); *np; *np = route_next(*np)) { | |
369 | if (!in_addr_cmp(&(*np)->p.u.prefix, (u_char *)&dest)) { | |
370 | RNODE_FOREACH_RE(*np, *re) | |
371 | { | |
372 | if (!in_addr_cmp((u_char *)&(*re) | |
373 | ->nexthop->gate | |
374 | .ipv4, | |
375 | (u_char *)&nexthop)) | |
376 | if (proto | |
377 | == proto_trans((*re)->type)) | |
378 | return; | |
379 | } | |
380 | } | |
718e3744 | 381 | } |
d62a17ae | 382 | return; |
718e3744 | 383 | } |
d62a17ae | 384 | |
385 | /* Search next best entry */ | |
386 | ||
387 | for (np2 = route_top(table); np2; np2 = route_next(np2)) { | |
388 | ||
389 | /* Check destination first */ | |
390 | if (in_addr_cmp(&np2->p.u.prefix, (u_char *)&dest) > 0) | |
391 | RNODE_FOREACH_RE(np2, re2) | |
f0f77c9a | 392 | check_replace(np2, re2, np, re); |
d62a17ae | 393 | |
394 | if (in_addr_cmp(&np2->p.u.prefix, (u_char *)&dest) | |
395 | == 0) { /* have to look at each re individually */ | |
396 | RNODE_FOREACH_RE(np2, re2) | |
397 | { | |
398 | int proto2, policy2; | |
399 | ||
400 | proto2 = proto_trans(re2->type); | |
401 | policy2 = 0; | |
402 | ||
403 | if ((policy < policy2) | |
404 | || ((policy == policy2) && (proto < proto2)) | |
405 | || ((policy == policy2) && (proto == proto2) | |
406 | && (in_addr_cmp((u_char *)&re2->nexthop | |
407 | ->gate.ipv4, | |
408 | (u_char *)&nexthop) | |
409 | >= 0))) | |
410 | check_replace(np2, re2, np, re); | |
411 | } | |
412 | } | |
718e3744 | 413 | } |
718e3744 | 414 | |
d62a17ae | 415 | if (!*re) |
416 | return; | |
718e3744 | 417 | |
d62a17ae | 418 | policy = 0; |
419 | proto = proto_trans((*re)->type); | |
718e3744 | 420 | |
d62a17ae | 421 | *objid_len = v->namelen + 10; |
422 | pnt = (u_char *)&(*np)->p.u.prefix; | |
423 | for (i = 0; i < 4; i++) | |
424 | objid[v->namelen + i] = *pnt++; | |
718e3744 | 425 | |
d62a17ae | 426 | objid[v->namelen + 4] = proto; |
427 | objid[v->namelen + 5] = policy; | |
718e3744 | 428 | |
d62a17ae | 429 | { |
430 | struct nexthop *nexthop; | |
718e3744 | 431 | |
d62a17ae | 432 | nexthop = (*re)->nexthop; |
433 | if (nexthop) { | |
434 | pnt = (u_char *)&nexthop->gate.ipv4; | |
435 | for (i = 0; i < 4; i++) | |
436 | objid[i + v->namelen + 6] = *pnt++; | |
437 | } | |
438 | } | |
718e3744 | 439 | |
d62a17ae | 440 | return; |
718e3744 | 441 | } |
442 | ||
d62a17ae | 443 | static u_char *ipFwTable(struct variable *v, oid objid[], size_t *objid_len, |
444 | int exact, size_t *val_len, WriteMethod **write_method) | |
718e3744 | 445 | { |
d62a17ae | 446 | struct route_node *np; |
447 | struct route_entry *re; | |
448 | static int result; | |
449 | static int resarr[2]; | |
450 | static struct in_addr netmask; | |
451 | struct nexthop *nexthop; | |
452 | ||
453 | if (smux_header_table(v, objid, objid_len, exact, val_len, write_method) | |
454 | == MATCH_FAILED) | |
455 | return NULL; | |
456 | ||
457 | get_fwtable_route_node(v, objid, objid_len, exact, &np, &re); | |
458 | if (!np) | |
459 | return NULL; | |
460 | ||
461 | nexthop = re->nexthop; | |
462 | if (!nexthop) | |
463 | return NULL; | |
464 | ||
465 | switch (v->magic) { | |
466 | case IPFORWARDDEST: | |
467 | *val_len = 4; | |
468 | return &np->p.u.prefix; | |
469 | break; | |
470 | case IPFORWARDMASK: | |
471 | masklen2ip(np->p.prefixlen, &netmask); | |
472 | *val_len = 4; | |
473 | return (u_char *)&netmask; | |
474 | break; | |
475 | case IPFORWARDPOLICY: | |
476 | result = 0; | |
477 | *val_len = sizeof(int); | |
478 | return (u_char *)&result; | |
479 | break; | |
480 | case IPFORWARDNEXTHOP: | |
481 | *val_len = 4; | |
482 | return (u_char *)&nexthop->gate.ipv4; | |
483 | break; | |
484 | case IPFORWARDIFINDEX: | |
485 | *val_len = sizeof(int); | |
486 | return (u_char *)&nexthop->ifindex; | |
487 | break; | |
488 | case IPFORWARDTYPE: | |
489 | if (nexthop->type == NEXTHOP_TYPE_IFINDEX) | |
490 | result = 3; | |
491 | else | |
492 | result = 4; | |
493 | *val_len = sizeof(int); | |
494 | return (u_char *)&result; | |
495 | break; | |
496 | case IPFORWARDPROTO: | |
497 | result = proto_trans(re->type); | |
498 | *val_len = sizeof(int); | |
499 | return (u_char *)&result; | |
500 | break; | |
501 | case IPFORWARDAGE: | |
502 | result = 0; | |
503 | *val_len = sizeof(int); | |
504 | return (u_char *)&result; | |
505 | break; | |
506 | case IPFORWARDINFO: | |
507 | resarr[0] = 0; | |
508 | resarr[1] = 0; | |
509 | *val_len = 2 * sizeof(int); | |
510 | return (u_char *)resarr; | |
511 | break; | |
512 | case IPFORWARDNEXTHOPAS: | |
513 | result = -1; | |
514 | *val_len = sizeof(int); | |
515 | return (u_char *)&result; | |
516 | break; | |
517 | case IPFORWARDMETRIC1: | |
518 | result = 0; | |
519 | *val_len = sizeof(int); | |
520 | return (u_char *)&result; | |
521 | break; | |
522 | case IPFORWARDMETRIC2: | |
523 | result = 0; | |
524 | *val_len = sizeof(int); | |
525 | return (u_char *)&result; | |
526 | break; | |
527 | case IPFORWARDMETRIC3: | |
528 | result = 0; | |
529 | *val_len = sizeof(int); | |
530 | return (u_char *)&result; | |
531 | break; | |
532 | case IPFORWARDMETRIC4: | |
533 | result = 0; | |
534 | *val_len = sizeof(int); | |
535 | return (u_char *)&result; | |
536 | break; | |
537 | case IPFORWARDMETRIC5: | |
538 | result = 0; | |
539 | *val_len = sizeof(int); | |
540 | return (u_char *)&result; | |
541 | break; | |
542 | default: | |
543 | return NULL; | |
544 | break; | |
545 | } | |
546 | return NULL; | |
718e3744 | 547 | } |
548 | ||
d62a17ae | 549 | static u_char *ipCidrTable(struct variable *v, oid objid[], size_t *objid_len, |
550 | int exact, size_t *val_len, | |
551 | WriteMethod **write_method) | |
718e3744 | 552 | { |
d62a17ae | 553 | if (smux_header_table(v, objid, objid_len, exact, val_len, write_method) |
554 | == MATCH_FAILED) | |
555 | return NULL; | |
556 | ||
557 | switch (v->magic) { | |
558 | case IPCIDRROUTEDEST: | |
559 | break; | |
560 | default: | |
561 | return NULL; | |
562 | break; | |
563 | } | |
564 | return NULL; | |
718e3744 | 565 | } |
566 | ||
d62a17ae | 567 | static int zebra_snmp_init(struct thread_master *tm) |
718e3744 | 568 | { |
d62a17ae | 569 | smux_init(tm); |
570 | REGISTER_MIB("mibII/ipforward", zebra_variables, variable, ipfw_oid); | |
571 | return 0; | |
5986b66b DL |
572 | } |
573 | ||
d62a17ae | 574 | static int zebra_snmp_module_init(void) |
5986b66b | 575 | { |
d62a17ae | 576 | hook_register(frr_late_init, zebra_snmp_init); |
577 | return 0; | |
718e3744 | 578 | } |
5986b66b | 579 | |
d62a17ae | 580 | FRR_MODULE_SETUP(.name = "zebra_snmp", .version = FRR_VERSION, |
581 | .description = "zebra AgentX SNMP module", | |
582 | .init = zebra_snmp_module_init, ) |