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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
07661cb5 | 2 | /* FIB SNMP. |
718e3744 | 3 | * Copyright (C) 1999 Kunihiro Ishiguro |
718e3744 | 4 | */ |
5 | ||
b72ede27 FL |
6 | /* |
7 | * Currently SNMP is only running properly for MIBs in the default VRF. | |
8 | */ | |
9 | ||
718e3744 | 10 | #include <zebra.h> |
11 | ||
07661cb5 | 12 | #include <net-snmp/net-snmp-config.h> |
fb62a3ce | 13 | #include <net-snmp/net-snmp-includes.h> |
718e3744 | 14 | |
15 | #include "if.h" | |
16 | #include "log.h" | |
17 | #include "prefix.h" | |
18 | #include "command.h" | |
19 | #include "smux.h" | |
20 | #include "table.h" | |
b72ede27 | 21 | #include "vrf.h" |
5986b66b DL |
22 | #include "hook.h" |
23 | #include "libfrr.h" | |
09781197 | 24 | #include "lib/version.h" |
718e3744 | 25 | |
26 | #include "zebra/rib.h" | |
dd488a78 | 27 | #include "zebra/zserv.h" |
050ceb3b | 28 | #include "zebra/zebra_vrf.h" |
6b0655a2 | 29 | |
718e3744 | 30 | #define IPFWMIB 1,3,6,1,2,1,4,24 |
718e3744 | 31 | |
32 | /* ipForwardTable */ | |
33 | #define IPFORWARDDEST 1 | |
34 | #define IPFORWARDMASK 2 | |
35 | #define IPFORWARDPOLICY 3 | |
36 | #define IPFORWARDNEXTHOP 4 | |
37 | #define IPFORWARDIFINDEX 5 | |
38 | #define IPFORWARDTYPE 6 | |
39 | #define IPFORWARDPROTO 7 | |
40 | #define IPFORWARDAGE 8 | |
41 | #define IPFORWARDINFO 9 | |
42 | #define IPFORWARDNEXTHOPAS 10 | |
43 | #define IPFORWARDMETRIC1 11 | |
44 | #define IPFORWARDMETRIC2 12 | |
45 | #define IPFORWARDMETRIC3 13 | |
46 | #define IPFORWARDMETRIC4 14 | |
47 | #define IPFORWARDMETRIC5 15 | |
48 | ||
49 | /* ipCidrRouteTable */ | |
50 | #define IPCIDRROUTEDEST 1 | |
51 | #define IPCIDRROUTEMASK 2 | |
52 | #define IPCIDRROUTETOS 3 | |
53 | #define IPCIDRROUTENEXTHOP 4 | |
54 | #define IPCIDRROUTEIFINDEX 5 | |
55 | #define IPCIDRROUTETYPE 6 | |
56 | #define IPCIDRROUTEPROTO 7 | |
57 | #define IPCIDRROUTEAGE 8 | |
58 | #define IPCIDRROUTEINFO 9 | |
59 | #define IPCIDRROUTENEXTHOPAS 10 | |
60 | #define IPCIDRROUTEMETRIC1 11 | |
61 | #define IPCIDRROUTEMETRIC2 12 | |
62 | #define IPCIDRROUTEMETRIC3 13 | |
63 | #define IPCIDRROUTEMETRIC4 14 | |
64 | #define IPCIDRROUTEMETRIC5 15 | |
65 | #define IPCIDRROUTESTATUS 16 | |
66 | ||
67 | #define INTEGER32 ASN_INTEGER | |
68 | #define GAUGE32 ASN_GAUGE | |
69 | #define ENUMERATION ASN_INTEGER | |
70 | #define ROWSTATUS ASN_INTEGER | |
71 | #define IPADDRESS ASN_IPADDRESS | |
72 | #define OBJECTIDENTIFIER ASN_OBJECT_ID | |
6b0655a2 | 73 | |
d62a17ae | 74 | static oid ipfw_oid[] = {IPFWMIB}; |
718e3744 | 75 | |
76 | /* Hook functions. */ | |
d7c0a89a QY |
77 | static uint8_t *ipFwNumber(struct variable *, oid[], size_t *, int, size_t *, |
78 | WriteMethod **); | |
79 | static uint8_t *ipFwTable(struct variable *, oid[], size_t *, int, size_t *, | |
d62a17ae | 80 | WriteMethod **); |
d7c0a89a QY |
81 | static uint8_t *ipCidrNumber(struct variable *, oid[], size_t *, int, size_t *, |
82 | WriteMethod **); | |
83 | static uint8_t *ipCidrTable(struct variable *, oid[], size_t *, int, size_t *, | |
d62a17ae | 84 | WriteMethod **); |
d62a17ae | 85 | |
86 | static struct variable zebra_variables[] = { | |
87 | {0, GAUGE32, RONLY, ipFwNumber, 1, {1}}, | |
88 | {IPFORWARDDEST, IPADDRESS, RONLY, ipFwTable, 3, {2, 1, 1}}, | |
89 | {IPFORWARDMASK, IPADDRESS, RONLY, ipFwTable, 3, {2, 1, 2}}, | |
90 | {IPFORWARDPOLICY, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 3}}, | |
91 | {IPFORWARDNEXTHOP, IPADDRESS, RONLY, ipFwTable, 3, {2, 1, 4}}, | |
92 | {IPFORWARDIFINDEX, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 5}}, | |
93 | {IPFORWARDTYPE, ENUMERATION, RONLY, ipFwTable, 3, {2, 1, 6}}, | |
94 | {IPFORWARDPROTO, ENUMERATION, RONLY, ipFwTable, 3, {2, 1, 7}}, | |
95 | {IPFORWARDAGE, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 8}}, | |
96 | {IPFORWARDINFO, OBJECTIDENTIFIER, RONLY, ipFwTable, 3, {2, 1, 9}}, | |
97 | {IPFORWARDNEXTHOPAS, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 10}}, | |
98 | {IPFORWARDMETRIC1, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 11}}, | |
99 | {IPFORWARDMETRIC2, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 12}}, | |
100 | {IPFORWARDMETRIC3, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 13}}, | |
101 | {IPFORWARDMETRIC4, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 14}}, | |
102 | {IPFORWARDMETRIC5, INTEGER32, RONLY, ipFwTable, 3, {2, 1, 15}}, | |
103 | {0, GAUGE32, RONLY, ipCidrNumber, 1, {3}}, | |
104 | {IPCIDRROUTEDEST, IPADDRESS, RONLY, ipCidrTable, 3, {4, 1, 1}}, | |
105 | {IPCIDRROUTEMASK, IPADDRESS, RONLY, ipCidrTable, 3, {4, 1, 2}}, | |
106 | {IPCIDRROUTETOS, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 3}}, | |
107 | {IPCIDRROUTENEXTHOP, IPADDRESS, RONLY, ipCidrTable, 3, {4, 1, 4}}, | |
108 | {IPCIDRROUTEIFINDEX, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 5}}, | |
109 | {IPCIDRROUTETYPE, ENUMERATION, RONLY, ipCidrTable, 3, {4, 1, 6}}, | |
110 | {IPCIDRROUTEPROTO, ENUMERATION, RONLY, ipCidrTable, 3, {4, 1, 7}}, | |
111 | {IPCIDRROUTEAGE, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 8}}, | |
112 | {IPCIDRROUTEINFO, OBJECTIDENTIFIER, RONLY, ipCidrTable, 3, {4, 1, 9}}, | |
113 | {IPCIDRROUTENEXTHOPAS, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 10}}, | |
114 | {IPCIDRROUTEMETRIC1, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 11}}, | |
115 | {IPCIDRROUTEMETRIC2, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 12}}, | |
116 | {IPCIDRROUTEMETRIC3, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 13}}, | |
117 | {IPCIDRROUTEMETRIC4, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 14}}, | |
118 | {IPCIDRROUTEMETRIC5, INTEGER32, RONLY, ipCidrTable, 3, {4, 1, 15}}, | |
119 | {IPCIDRROUTESTATUS, ROWSTATUS, RONLY, ipCidrTable, 3, {4, 1, 16}}}; | |
120 | ||
121 | ||
d7c0a89a QY |
122 | static uint8_t *ipFwNumber(struct variable *v, oid objid[], size_t *objid_len, |
123 | int exact, size_t *val_len, | |
124 | WriteMethod **write_method) | |
718e3744 | 125 | { |
d62a17ae | 126 | static int result; |
127 | struct route_table *table; | |
128 | struct route_node *rn; | |
129 | struct route_entry *re; | |
130 | ||
131 | if (smux_header_generic(v, objid, objid_len, exact, val_len, | |
132 | write_method) | |
133 | == MATCH_FAILED) | |
134 | return NULL; | |
135 | ||
136 | table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT); | |
137 | if (!table) | |
138 | return NULL; | |
139 | ||
140 | /* Return number of routing entries. */ | |
141 | result = 0; | |
142 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
a2addae8 | 143 | RNODE_FOREACH_RE (rn, re) { |
407c87a6 DS |
144 | result++; |
145 | } | |
d62a17ae | 146 | |
d7c0a89a | 147 | return (uint8_t *)&result; |
718e3744 | 148 | } |
149 | ||
d7c0a89a QY |
150 | static uint8_t *ipCidrNumber(struct variable *v, oid objid[], size_t *objid_len, |
151 | int exact, size_t *val_len, | |
152 | WriteMethod **write_method) | |
718e3744 | 153 | { |
d62a17ae | 154 | static int result; |
155 | struct route_table *table; | |
156 | struct route_node *rn; | |
157 | struct route_entry *re; | |
158 | ||
159 | if (smux_header_generic(v, objid, objid_len, exact, val_len, | |
160 | write_method) | |
161 | == MATCH_FAILED) | |
162 | return NULL; | |
163 | ||
164 | table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT); | |
165 | if (!table) | |
166 | return 0; | |
167 | ||
168 | /* Return number of routing entries. */ | |
169 | result = 0; | |
170 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
a2addae8 | 171 | RNODE_FOREACH_RE (rn, re) { |
407c87a6 DS |
172 | result++; |
173 | } | |
d62a17ae | 174 | |
d7c0a89a | 175 | return (uint8_t *)&result; |
718e3744 | 176 | } |
177 | ||
d7c0a89a | 178 | static int in_addr_cmp(uint8_t *p1, uint8_t *p2) |
718e3744 | 179 | { |
d62a17ae | 180 | int i; |
181 | ||
182 | for (i = 0; i < 4; i++) { | |
183 | if (*p1 < *p2) | |
184 | return -1; | |
185 | if (*p1 > *p2) | |
186 | return 1; | |
187 | p1++; | |
188 | p2++; | |
189 | } | |
190 | return 0; | |
718e3744 | 191 | } |
192 | ||
d7c0a89a | 193 | static int in_addr_add(uint8_t *p, int num) |
718e3744 | 194 | { |
d62a17ae | 195 | int i, ip0; |
196 | ||
197 | ip0 = *p; | |
198 | p += 4; | |
199 | for (i = 3; 0 <= i; i--) { | |
200 | p--; | |
201 | if (*p + num > 255) { | |
202 | *p += num; | |
203 | num = 1; | |
204 | } else { | |
205 | *p += num; | |
206 | return 1; | |
207 | } | |
208 | } | |
209 | if (ip0 > *p) { | |
210 | /* ip + num > 0xffffffff */ | |
211 | return 0; | |
212 | } | |
718e3744 | 213 | |
d62a17ae | 214 | return 1; |
718e3744 | 215 | } |
216 | ||
d62a17ae | 217 | static int proto_trans(int type) |
718e3744 | 218 | { |
d62a17ae | 219 | switch (type) { |
220 | case ZEBRA_ROUTE_SYSTEM: | |
221 | return 1; /* other */ | |
222 | case ZEBRA_ROUTE_KERNEL: | |
223 | return 1; /* other */ | |
224 | case ZEBRA_ROUTE_CONNECT: | |
225 | return 2; /* local interface */ | |
226 | case ZEBRA_ROUTE_STATIC: | |
227 | return 3; /* static route */ | |
228 | case ZEBRA_ROUTE_RIP: | |
229 | return 8; /* rip */ | |
230 | case ZEBRA_ROUTE_RIPNG: | |
231 | return 1; /* shouldn't happen */ | |
232 | case ZEBRA_ROUTE_OSPF: | |
233 | return 13; /* ospf */ | |
234 | case ZEBRA_ROUTE_OSPF6: | |
235 | return 1; /* shouldn't happen */ | |
236 | case ZEBRA_ROUTE_BGP: | |
237 | return 14; /* bgp */ | |
238 | default: | |
239 | return 1; /* other */ | |
240 | } | |
718e3744 | 241 | } |
242 | ||
d62a17ae | 243 | static void check_replace(struct route_node *np2, struct route_entry *re2, |
244 | struct route_node **np, struct route_entry **re) | |
718e3744 | 245 | { |
d62a17ae | 246 | int proto, proto2; |
718e3744 | 247 | |
d62a17ae | 248 | if (!*np) { |
249 | *np = np2; | |
250 | *re = re2; | |
251 | return; | |
252 | } | |
718e3744 | 253 | |
17e2f0bf | 254 | if (prefix_cmp(&(*np)->p, &np2->p) < 0) |
d62a17ae | 255 | return; |
17e2f0bf | 256 | if (prefix_cmp(&(*np)->p, &np2->p) > 0) { |
d62a17ae | 257 | *np = np2; |
258 | *re = re2; | |
259 | return; | |
260 | } | |
718e3744 | 261 | |
d62a17ae | 262 | proto = proto_trans((*re)->type); |
263 | proto2 = proto_trans(re2->type); | |
718e3744 | 264 | |
d62a17ae | 265 | if (proto2 > proto) |
266 | return; | |
267 | if (proto2 < proto) { | |
268 | *np = np2; | |
269 | *re = re2; | |
270 | return; | |
271 | } | |
718e3744 | 272 | |
c415d895 MS |
273 | if (in_addr_cmp((uint8_t *)&(*re)->nhe->nhg.nexthop->gate.ipv4, |
274 | (uint8_t *)&re2->nhe->nhg.nexthop->gate.ipv4) | |
d62a17ae | 275 | <= 0) |
276 | return; | |
718e3744 | 277 | |
d62a17ae | 278 | *np = np2; |
279 | *re = re2; | |
280 | return; | |
281 | } | |
718e3744 | 282 | |
d62a17ae | 283 | static void get_fwtable_route_node(struct variable *v, oid objid[], |
284 | size_t *objid_len, int exact, | |
285 | struct route_node **np, | |
286 | struct route_entry **re) | |
287 | { | |
288 | struct in_addr dest; | |
289 | struct route_table *table; | |
290 | struct route_node *np2; | |
291 | struct route_entry *re2; | |
292 | int proto; | |
293 | int policy; | |
294 | struct in_addr nexthop; | |
d7c0a89a | 295 | uint8_t *pnt; |
d62a17ae | 296 | int i; |
297 | ||
298 | /* Init index variables */ | |
299 | ||
d7c0a89a | 300 | pnt = (uint8_t *)&dest; |
d62a17ae | 301 | for (i = 0; i < 4; i++) |
302 | *pnt++ = 0; | |
718e3744 | 303 | |
d7c0a89a | 304 | pnt = (uint8_t *)&nexthop; |
d62a17ae | 305 | for (i = 0; i < 4; i++) |
306 | *pnt++ = 0; | |
07661cb5 | 307 | |
d62a17ae | 308 | proto = 0; |
309 | policy = 0; | |
718e3744 | 310 | |
d62a17ae | 311 | /* Init return variables */ |
718e3744 | 312 | |
d62a17ae | 313 | *np = NULL; |
314 | *re = NULL; | |
718e3744 | 315 | |
d62a17ae | 316 | /* Short circuit exact matches of wrong length */ |
718e3744 | 317 | |
d62a17ae | 318 | if (exact && (*objid_len != (unsigned)v->namelen + 10)) |
319 | return; | |
718e3744 | 320 | |
d62a17ae | 321 | table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT); |
322 | if (!table) | |
323 | return; | |
718e3744 | 324 | |
d62a17ae | 325 | /* Get INDEX information out of OID. |
326 | * ipForwardDest, ipForwardProto, ipForwardPolicy, ipForwardNextHop | |
327 | */ | |
718e3744 | 328 | |
d62a17ae | 329 | if (*objid_len > (unsigned)v->namelen) |
330 | oid2in_addr(objid + v->namelen, | |
331 | MIN(4U, *objid_len - v->namelen), &dest); | |
718e3744 | 332 | |
d62a17ae | 333 | if (*objid_len > (unsigned)v->namelen + 4) |
334 | proto = objid[v->namelen + 4]; | |
335 | ||
336 | if (*objid_len > (unsigned)v->namelen + 5) | |
337 | policy = objid[v->namelen + 5]; | |
338 | ||
339 | if (*objid_len > (unsigned)v->namelen + 6) | |
340 | oid2in_addr(objid + v->namelen + 6, | |
341 | MIN(4U, *objid_len - v->namelen - 6), &nexthop); | |
342 | ||
343 | /* Apply GETNEXT on not exact search */ | |
344 | ||
345 | if (!exact && (*objid_len >= (unsigned)v->namelen + 10)) { | |
d7c0a89a | 346 | if (!in_addr_add((uint8_t *)&nexthop, 1)) |
d62a17ae | 347 | return; |
348 | } | |
349 | ||
350 | /* For exact: search matching entry in rib table. */ | |
351 | ||
352 | if (exact) { | |
353 | if (policy) /* Not supported (yet?) */ | |
354 | return; | |
355 | for (*np = route_top(table); *np; *np = route_next(*np)) { | |
d7c0a89a QY |
356 | if (!in_addr_cmp(&(*np)->p.u.prefix, |
357 | (uint8_t *)&dest)) { | |
a2addae8 | 358 | RNODE_FOREACH_RE (*np, *re) { |
0eb97b86 | 359 | if (!in_addr_cmp((uint8_t *)&(*re)->nhe |
c415d895 | 360 | ->nhg.nexthop |
0eb97b86 | 361 | ->gate.ipv4, |
d7c0a89a | 362 | (uint8_t *)&nexthop)) |
d62a17ae | 363 | if (proto |
364 | == proto_trans((*re)->type)) | |
365 | return; | |
366 | } | |
367 | } | |
718e3744 | 368 | } |
d62a17ae | 369 | return; |
718e3744 | 370 | } |
d62a17ae | 371 | |
372 | /* Search next best entry */ | |
373 | ||
374 | for (np2 = route_top(table); np2; np2 = route_next(np2)) { | |
375 | ||
376 | /* Check destination first */ | |
d7c0a89a | 377 | if (in_addr_cmp(&np2->p.u.prefix, (uint8_t *)&dest) > 0) |
a2addae8 | 378 | RNODE_FOREACH_RE (np2, re2) { |
407c87a6 DS |
379 | check_replace(np2, re2, np, re); |
380 | } | |
d62a17ae | 381 | |
d7c0a89a | 382 | if (in_addr_cmp(&np2->p.u.prefix, (uint8_t *)&dest) |
d62a17ae | 383 | == 0) { /* have to look at each re individually */ |
a2addae8 | 384 | RNODE_FOREACH_RE (np2, re2) { |
d62a17ae | 385 | int proto2, policy2; |
386 | ||
387 | proto2 = proto_trans(re2->type); | |
388 | policy2 = 0; | |
389 | ||
390 | if ((policy < policy2) | |
391 | || ((policy == policy2) && (proto < proto2)) | |
392 | || ((policy == policy2) && (proto == proto2) | |
7ee30f28 | 393 | && (in_addr_cmp( |
0eb97b86 | 394 | (uint8_t *)&re2->nhe |
c415d895 | 395 | ->nhg.nexthop->gate.ipv4, |
d7c0a89a | 396 | (uint8_t *)&nexthop) |
d62a17ae | 397 | >= 0))) |
398 | check_replace(np2, re2, np, re); | |
399 | } | |
400 | } | |
718e3744 | 401 | } |
718e3744 | 402 | |
d62a17ae | 403 | if (!*re) |
404 | return; | |
718e3744 | 405 | |
d62a17ae | 406 | policy = 0; |
407 | proto = proto_trans((*re)->type); | |
718e3744 | 408 | |
d62a17ae | 409 | *objid_len = v->namelen + 10; |
d7c0a89a | 410 | pnt = (uint8_t *)&(*np)->p.u.prefix; |
d62a17ae | 411 | for (i = 0; i < 4; i++) |
412 | objid[v->namelen + i] = *pnt++; | |
718e3744 | 413 | |
d62a17ae | 414 | objid[v->namelen + 4] = proto; |
415 | objid[v->namelen + 5] = policy; | |
718e3744 | 416 | |
d62a17ae | 417 | { |
418 | struct nexthop *nexthop; | |
718e3744 | 419 | |
c415d895 | 420 | nexthop = (*re)->nhe->nhg.nexthop; |
d62a17ae | 421 | if (nexthop) { |
d7c0a89a | 422 | pnt = (uint8_t *)&nexthop->gate.ipv4; |
d62a17ae | 423 | for (i = 0; i < 4; i++) |
424 | objid[i + v->namelen + 6] = *pnt++; | |
425 | } | |
426 | } | |
718e3744 | 427 | |
d62a17ae | 428 | return; |
718e3744 | 429 | } |
430 | ||
d7c0a89a QY |
431 | static uint8_t *ipFwTable(struct variable *v, oid objid[], size_t *objid_len, |
432 | int exact, size_t *val_len, | |
433 | WriteMethod **write_method) | |
718e3744 | 434 | { |
d62a17ae | 435 | struct route_node *np; |
436 | struct route_entry *re; | |
437 | static int result; | |
438 | static int resarr[2]; | |
439 | static struct in_addr netmask; | |
440 | struct nexthop *nexthop; | |
441 | ||
442 | if (smux_header_table(v, objid, objid_len, exact, val_len, write_method) | |
443 | == MATCH_FAILED) | |
444 | return NULL; | |
445 | ||
446 | get_fwtable_route_node(v, objid, objid_len, exact, &np, &re); | |
447 | if (!np) | |
448 | return NULL; | |
449 | ||
c415d895 | 450 | nexthop = re->nhe->nhg.nexthop; |
d62a17ae | 451 | if (!nexthop) |
452 | return NULL; | |
453 | ||
454 | switch (v->magic) { | |
455 | case IPFORWARDDEST: | |
456 | *val_len = 4; | |
457 | return &np->p.u.prefix; | |
d62a17ae | 458 | case IPFORWARDMASK: |
459 | masklen2ip(np->p.prefixlen, &netmask); | |
460 | *val_len = 4; | |
d7c0a89a | 461 | return (uint8_t *)&netmask; |
d62a17ae | 462 | case IPFORWARDPOLICY: |
463 | result = 0; | |
464 | *val_len = sizeof(int); | |
d7c0a89a | 465 | return (uint8_t *)&result; |
d62a17ae | 466 | case IPFORWARDNEXTHOP: |
467 | *val_len = 4; | |
d7c0a89a | 468 | return (uint8_t *)&nexthop->gate.ipv4; |
d62a17ae | 469 | case IPFORWARDIFINDEX: |
470 | *val_len = sizeof(int); | |
d7c0a89a | 471 | return (uint8_t *)&nexthop->ifindex; |
d62a17ae | 472 | case IPFORWARDTYPE: |
473 | if (nexthop->type == NEXTHOP_TYPE_IFINDEX) | |
474 | result = 3; | |
475 | else | |
476 | result = 4; | |
477 | *val_len = sizeof(int); | |
d7c0a89a | 478 | return (uint8_t *)&result; |
d62a17ae | 479 | case IPFORWARDPROTO: |
480 | result = proto_trans(re->type); | |
481 | *val_len = sizeof(int); | |
d7c0a89a | 482 | return (uint8_t *)&result; |
d62a17ae | 483 | case IPFORWARDAGE: |
484 | result = 0; | |
485 | *val_len = sizeof(int); | |
d7c0a89a | 486 | return (uint8_t *)&result; |
d62a17ae | 487 | case IPFORWARDINFO: |
488 | resarr[0] = 0; | |
489 | resarr[1] = 0; | |
490 | *val_len = 2 * sizeof(int); | |
d7c0a89a | 491 | return (uint8_t *)resarr; |
d62a17ae | 492 | case IPFORWARDNEXTHOPAS: |
493 | result = -1; | |
494 | *val_len = sizeof(int); | |
d7c0a89a | 495 | return (uint8_t *)&result; |
d62a17ae | 496 | case IPFORWARDMETRIC1: |
497 | result = 0; | |
498 | *val_len = sizeof(int); | |
d7c0a89a | 499 | return (uint8_t *)&result; |
d62a17ae | 500 | case IPFORWARDMETRIC2: |
501 | result = 0; | |
502 | *val_len = sizeof(int); | |
d7c0a89a | 503 | return (uint8_t *)&result; |
d62a17ae | 504 | case IPFORWARDMETRIC3: |
505 | result = 0; | |
506 | *val_len = sizeof(int); | |
d7c0a89a | 507 | return (uint8_t *)&result; |
d62a17ae | 508 | case IPFORWARDMETRIC4: |
509 | result = 0; | |
510 | *val_len = sizeof(int); | |
d7c0a89a | 511 | return (uint8_t *)&result; |
d62a17ae | 512 | case IPFORWARDMETRIC5: |
513 | result = 0; | |
514 | *val_len = sizeof(int); | |
d7c0a89a | 515 | return (uint8_t *)&result; |
d62a17ae | 516 | default: |
517 | return NULL; | |
d62a17ae | 518 | } |
519 | return NULL; | |
718e3744 | 520 | } |
521 | ||
d7c0a89a QY |
522 | static uint8_t *ipCidrTable(struct variable *v, oid objid[], size_t *objid_len, |
523 | int exact, size_t *val_len, | |
524 | WriteMethod **write_method) | |
718e3744 | 525 | { |
d62a17ae | 526 | if (smux_header_table(v, objid, objid_len, exact, val_len, write_method) |
527 | == MATCH_FAILED) | |
528 | return NULL; | |
529 | ||
530 | switch (v->magic) { | |
531 | case IPCIDRROUTEDEST: | |
532 | break; | |
533 | default: | |
534 | return NULL; | |
d62a17ae | 535 | } |
536 | return NULL; | |
718e3744 | 537 | } |
538 | ||
d62a17ae | 539 | static int zebra_snmp_init(struct thread_master *tm) |
718e3744 | 540 | { |
d62a17ae | 541 | smux_init(tm); |
542 | REGISTER_MIB("mibII/ipforward", zebra_variables, variable, ipfw_oid); | |
543 | return 0; | |
5986b66b DL |
544 | } |
545 | ||
d62a17ae | 546 | static int zebra_snmp_module_init(void) |
5986b66b | 547 | { |
d62a17ae | 548 | hook_register(frr_late_init, zebra_snmp_init); |
549 | return 0; | |
718e3744 | 550 | } |
5986b66b | 551 | |
d62a17ae | 552 | FRR_MODULE_SETUP(.name = "zebra_snmp", .version = FRR_VERSION, |
553 | .description = "zebra AgentX SNMP module", | |
80413c20 DL |
554 | .init = zebra_snmp_module_init, |
555 | ); |