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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
f9a4d683 KS |
2 | /* |
3 | * LDP SNMP support | |
4 | * Copyright (C) 2020 Volta Networks, Inc. | |
f9a4d683 KS |
5 | */ |
6 | ||
7 | /* | |
8 | * This is minimal read-only implementations providing | |
9 | * mplsLdpModuleReadOnlyCompliance as described in RFC 3815. | |
10 | */ | |
11 | ||
12 | #include <zebra.h> | |
13 | ||
14 | #include <net-snmp/net-snmp-config.h> | |
15 | #include <net-snmp/net-snmp-includes.h> | |
16 | ||
17 | #include "vrf.h" | |
18 | #include "if.h" | |
19 | #include "log.h" | |
20 | #include "prefix.h" | |
21 | #include "table.h" | |
22 | #include "command.h" | |
23 | #include "memory.h" | |
24 | #include "smux.h" | |
25 | #include "libfrr.h" | |
09781197 | 26 | #include "lib/version.h" |
f9a4d683 KS |
27 | #include "ldpd.h" |
28 | #include "ldpe.h" | |
29 | ||
30 | /* SNMP value hack. */ | |
31 | #define COUNTER32 ASN_COUNTER | |
32 | #define INTEGER ASN_INTEGER | |
33 | #define UNSIGNED32 ASN_GAUGE | |
34 | #define TIMESTAMP ASN_TIMETICKS | |
35 | #define TIMETICKS ASN_TIMETICKS | |
36 | #define STRING ASN_OCTET_STR | |
37 | #define IPADDRESS ASN_IPADDRESS | |
38 | ||
39 | #define LDP_LSRID_IDX_LEN 6 | |
40 | #define LDP_ENTITY_IDX_LEN 1 | |
41 | #define LDP_ADJACENCY_IDX_LEN 1 | |
42 | ||
43 | /* MPLS-LDP-STD-MIB. */ | |
44 | #define MPLS_LDP_STD_MIB 1, 3, 6, 1, 2, 1, 10, 166, 4 | |
45 | ||
46 | #define MPLS_LDP_LSR_ID 0 | |
47 | #define MPLS_LDP_LSR_LOOP_DETECTION_CAPABLE 0 | |
48 | #define MPLS_LDP_ENTITY_LAST_CHANGE 0 | |
49 | #define MPLS_LDP_ENTITY_INDEX_NEXT 0 | |
50 | ||
51 | /* Declare static local variables for convenience. */ | |
52 | SNMP_LOCAL_VARIABLES | |
53 | ||
54 | /* LDP-MIB instances. */ | |
55 | static oid ldp_oid[] = {MPLS_LDP_STD_MIB}; | |
56 | static oid ldp_trap_oid[] = {MPLS_LDP_STD_MIB, 0}; | |
57 | ||
58 | static uint8_t snmp_ldp_rtrid[6] = {0, 0, 0, 0, 0}; | |
59 | ||
60 | #define LDP_DEFAULT_ENTITY_INDEX 1 | |
61 | ||
62 | #define MPLSLDPLSRLOOPDETECTIONCAPABLE_NONE 1 | |
63 | #define MPLSLDPLSRLOOPDETECTIONCAPABLE_OTHER 2 | |
64 | #define MPLSLDPLSRLOOPDETECTIONCAPABLE_HOPCOUNT 3 | |
65 | #define MPLSLDPLSRLOOPDETECTIONCAPABLE_PATHVECTOR 4 | |
66 | #define MPLSLDPLSRLOOPDETECTIONCAPABLE_HOPCOUNTANDPATHVECTOR 5 | |
67 | ||
68 | /* MPLS LDP mplsLdpHelloAdjacencyTable. */ | |
69 | #define MPLSLDPHELLOADJACENCYINDEX 1 | |
70 | #define MPLSLDPHELLOADJACENCYHOLDTIMEREM 2 | |
71 | #define MPLSLDPHELLOADJACENCYHOLDTIME 3 | |
72 | #define MPLSLDPHELLOADJACENCYTYPE 4 | |
73 | ||
74 | /* enums for column mplsLdpHelloAdjacencyType */ | |
75 | #define MPLSLDPHELLOADJACENCYTYPE_LINK 1 | |
76 | #define MPLSLDPHELLOADJACENCYTYPE_TARGETED 2 | |
77 | ||
78 | #define MPLSLDPPEERTRANSPORTADDRTYPE_UNKNOWN 0 | |
79 | #define MPLSLDPPEERTRANSPORTADDRTYPE_IPV4 1 | |
80 | #define MPLSLDPPEERTRANSPORTADDRTYPE_IPV6 2 | |
81 | #define MPLSLDPPEERTRANSPORTADDRTYPE_IPV4Z 3 | |
82 | #define MPLSLDPPEERTRANSPORTADDRTYPE_IPV6Z 4 | |
83 | #define MPLSLDPPEERTRANSPORTADDRTYPE_DNS 16 | |
84 | ||
85 | #define DOWNSTREAMONDEMAND 1 | |
86 | #define DOWNSTREAMUNSOLICITED 2 | |
87 | ||
88 | #define CONSERVATIVERETENTION 1 | |
89 | #define LIBERALRETENTION 2 | |
90 | ||
91 | #define TRANSPORTADDRINTERFACE 1 | |
92 | #define TRANSPORTADDRLOOPBACK 2 | |
93 | ||
94 | #define LABELTYPEGENERIC 1 | |
95 | ||
96 | #define STORAGETYPENONVOLATILE 3 | |
97 | ||
98 | #define ROWSTATUSACTIVE 4 | |
99 | ||
100 | #define ADMINSTATUSENABLED 1 | |
101 | ||
102 | #define OPERSTATUSENABLED 2 | |
103 | ||
104 | /* MPLS LDP mplsLdpPeerTable */ | |
105 | #define MPLSLDPPEERLDPID 1 | |
106 | #define MPLSLDPPEERLABELDISTMETHOD 2 | |
107 | #define MPLSLDPPEERPATHVECTORLIMIT 3 | |
108 | #define MPLSLDPPEERTRANSPORTADDRTYPE 4 | |
109 | #define MPLSLDPPEERTRANSPORTADDR 5 | |
110 | ||
111 | #define MPLSLDPSESSIONROLE_UNKNOWN 1 | |
112 | #define MPLSLDPSESSIONROLE_ACTIVE 2 | |
113 | #define MPLSLDPSESSIONROLE_PASSIVE 3 | |
114 | ||
115 | #define MPLSLDPSESSIONSTATE_NONEXISTENT 1 | |
116 | #define MPLSLDPSESSIONSTATE_INITIALIZED 2 | |
117 | #define MPLSLDPSESSIONSTATE_OPENREC 3 | |
118 | #define MPLSLDPSESSIONSTATE_OPENSENT 4 | |
119 | #define MPLSLDPSESSIONSTATE_OPERATIONAL 5 | |
120 | ||
121 | /* MPLS LDP mplsLdpSessionTable */ | |
122 | #define MPLSLDPSESSIONSTATELASTCHANGE 1 | |
123 | #define MPLSLDPSESSIONSTATE 2 | |
124 | #define MPLSLDPSESSIONROLE 3 | |
125 | #define MPLSLDPSESSIONPROTOCOLVERSION 4 | |
126 | #define MPLSLDPSESSIONKEEPALIVEHOLDTIMEREM 5 | |
127 | #define MPLSLDPSESSIONKEEPALIVETIME 6 | |
128 | #define MPLSLDPSESSIONMAXPDULENGTH 7 | |
129 | #define MPLSLDPSESSIONDISCONTINUITYTIME 8 | |
130 | ||
131 | /* MPLS LDP mplsLdpEntityTable */ | |
132 | #define MPLSLDPENTITYLDPID 1 | |
133 | #define MPLSLDPENTITYINDEX 2 | |
134 | #define MPLSLDPENTITYPROTOCOLVERSION 3 | |
135 | #define MPLSLDPENTITYADMINSTATUS 4 | |
136 | #define MPLSLDPENTITYOPERSTATUS 5 | |
137 | #define MPLSLDPENTITYTCPPORT 6 | |
138 | #define MPLSLDPENTITYUDPDSCPORT 7 | |
139 | #define MPLSLDPENTITYMAXPDULENGTH 8 | |
140 | #define MPLSLDPENTITYKEEPALIVEHOLDTIMER 9 | |
141 | #define MPLSLDPENTITYHELLOHOLDTIMER 10 | |
142 | #define MPLSLDPENTITYINITSESSIONTHRESHOLD 11 | |
143 | #define MPLSLDPENTITYLABELDISTMETHOD 12 | |
144 | #define MPLSLDPENTITYLABELRETENTIONMODE 13 | |
145 | #define MPLSLDPENTITYPATHVECTORLIMIT 14 | |
146 | #define MPLSLDPENTITYHOPCOUNTLIMIT 15 | |
147 | #define MPLSLDPENTITYTRANSPORTADDRKIND 16 | |
148 | #define MPLSLDPENTITYTARGETPEER 17 | |
149 | #define MPLSLDPENTITYTARGETPEERADDRTYPE 18 | |
150 | #define MPLSLDPENTITYTARGETPEERADDR 19 | |
151 | #define MPLSLDPENTITYLABELTYPE 20 | |
152 | #define MPLSLDPENTITYDISCONTINUITYTIME 21 | |
153 | #define MPLSLDPENTITYSTORAGETYPE 22 | |
154 | #define MPLSLDPENTITYROWSTATUS 23 | |
155 | ||
156 | /* MPLS LDP mplsLdpEntityStatsTable */ | |
157 | #define MPLSLDPENTITYSTATSSESSIONATTEMPTS 1 | |
158 | #define MPLSLDPENTITYSTATSSESSIONREJHELLO 2 | |
159 | #define MPLSLDPENTITYSTATSSESSIONREJAD 3 | |
160 | #define MPLSLDPENTITYSTATSSESSIONREJMAXPDU 4 | |
161 | #define MPLSLDPENTITYSTATSSESSIONREJLR 5 | |
162 | #define MPLSLDPENTITYSTATSBADLDPID 6 | |
163 | #define MPLSLDPENTITYSTATSBADPDULENGTH 7 | |
164 | #define MPLSLDPENTITYSTATSBADMSGLENGTH 8 | |
165 | #define MPLSLDPENTITYSTATSBADTLVLENGTH 9 | |
166 | #define MPLSLDPENTITYSTATSMALFORMEDTLV 10 | |
167 | #define MPLSLDPENTITYSTATSKEEPALIVEEXP 11 | |
168 | #define MPLSLDPENTITYSTATSSHUTDOWNRCVNOTIFY 12 | |
169 | #define MPLSLDPENTITYSTATSSHUTDOWNSENTNOTIFY 13 | |
170 | ||
171 | #define MPLSLDPSESSIONSTATSUNKNOWNMESTYPEERRORS 1 | |
172 | #define MPLSLDPSESSIONSTATSUNKNOWNTLVERRORS 2 | |
173 | ||
174 | static uint8_t *ldpLsrId(struct variable *v, oid name[], size_t *length, | |
175 | int exact, size_t *var_len, | |
176 | WriteMethod **write_method) | |
177 | { | |
178 | if (smux_header_generic(v, name, length, exact, var_len, write_method) | |
179 | == MATCH_FAILED) | |
180 | return NULL; | |
181 | ||
182 | *var_len = 4; | |
183 | return (uint8_t *)&leconf->rtr_id.s_addr; | |
184 | } | |
185 | ||
186 | static uint8_t *ldpLoopDetectCap(struct variable *v, oid name[], size_t *length, | |
187 | int exact, size_t *var_len, | |
188 | WriteMethod **write_method) | |
189 | { | |
190 | if (smux_header_generic(v, name, length, exact, var_len, write_method) | |
191 | == MATCH_FAILED) | |
192 | return NULL; | |
193 | ||
194 | return SNMP_INTEGER(MPLSLDPLSRLOOPDETECTIONCAPABLE_NONE); | |
195 | } | |
196 | ||
197 | extern uint32_t ldp_start_time; | |
198 | static uint8_t *ldpEntityLastChange(struct variable *v, oid name[], | |
199 | size_t *length, | |
200 | int exact, size_t *var_len, | |
201 | WriteMethod **write_method) | |
202 | { | |
203 | if (smux_header_generic(v, name, length, exact, var_len, write_method) | |
204 | == MATCH_FAILED) | |
205 | return NULL; | |
206 | ||
207 | *var_len = sizeof(time_t); | |
208 | return (uint8_t *) &(leconf->config_change_time); | |
209 | ||
210 | } | |
211 | ||
212 | static uint8_t *ldpEntityIndexNext(struct variable *v, oid name[], | |
213 | size_t *length,int exact, size_t *var_len, | |
214 | WriteMethod **write_method) | |
215 | { | |
216 | if (smux_header_generic(v, name, length, exact, var_len, write_method) | |
217 | == MATCH_FAILED) | |
218 | return NULL; | |
219 | ||
220 | return SNMP_INTEGER(0); | |
221 | } | |
222 | ||
223 | #define LDP_ENTITY_TOTAL_LEN 21 | |
224 | #define LDP_ENTITY_MAX_IDX_LEN 6 | |
225 | ||
226 | static struct ldpd_af_conf *ldpEntityTable_lookup(struct variable *v, oid *name, | |
227 | size_t *length, int exact, | |
228 | uint32_t *index) | |
229 | { | |
230 | int len; | |
231 | struct ldpd_af_conf *af_v4, *af_v6; | |
232 | ||
233 | af_v4 = &leconf->ipv4; | |
234 | af_v6 = &leconf->ipv6; | |
235 | ||
236 | if (exact) { | |
237 | if (*length != LDP_ENTITY_TOTAL_LEN) | |
238 | return NULL; | |
239 | ||
240 | if (leconf->trans_pref == DUAL_STACK_LDPOV6 && | |
241 | af_v6->flags & F_LDPD_AF_ENABLED) { | |
242 | *index = 2; | |
243 | return af_v6; | |
244 | } else { | |
245 | *index = 1; | |
246 | return af_v4; | |
247 | } | |
248 | } else { | |
249 | /* only support one router id so can just skip */ | |
250 | len = *length - v->namelen - LDP_ENTITY_MAX_IDX_LEN; | |
251 | if (len <= 0) { | |
252 | if (leconf->trans_pref == DUAL_STACK_LDPOV6 && | |
253 | af_v6->flags & F_LDPD_AF_ENABLED) { | |
254 | *index = 2; | |
255 | return af_v6; | |
256 | } else { | |
257 | *index = 1; | |
258 | return af_v4; | |
259 | } | |
260 | } | |
261 | } | |
262 | return NULL; | |
263 | } | |
264 | ||
265 | static uint8_t *ldpEntityTable(struct variable *v, oid name[], size_t *length, | |
266 | int exact, size_t *var_len, | |
267 | WriteMethod **write_method) | |
268 | { | |
269 | struct ldpd_af_conf *af; | |
270 | struct in_addr entityLdpId = {.s_addr = 0}; | |
271 | uint32_t index = 0; | |
272 | ||
273 | *write_method = NULL; | |
274 | ||
275 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
276 | == MATCH_FAILED) | |
277 | return NULL; | |
278 | ||
279 | af = ldpEntityTable_lookup(v, name, length, exact, &index); | |
280 | if (af == NULL) | |
281 | return NULL; | |
282 | ||
283 | if (!exact) { | |
284 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
285 | ||
286 | /* Copy the name out */ | |
287 | memcpy(name, v->name, v->namelen * sizeof(oid)); | |
288 | ||
289 | /* Append index */ | |
290 | *length = LDP_ENTITY_TOTAL_LEN; | |
9e263221 | 291 | oid_copy_in_addr(name + v->namelen, &entityLdpId); |
f9a4d683 KS |
292 | name[v->namelen + 4] = 0; |
293 | name[v->namelen + 5] = 0; | |
294 | name[v->namelen + 6] = LDP_DEFAULT_ENTITY_INDEX; | |
295 | } | |
296 | ||
297 | /* Return the current value of the variable */ | |
298 | switch (v->magic) { | |
299 | case MPLSLDPENTITYLDPID: | |
300 | *var_len = 6; | |
301 | memcpy (snmp_ldp_rtrid, &entityLdpId, IN_ADDR_SIZE); | |
302 | return (uint8_t *)snmp_ldp_rtrid; | |
303 | case MPLSLDPENTITYINDEX: | |
304 | return SNMP_INTEGER(LDP_DEFAULT_ENTITY_INDEX); | |
305 | case MPLSLDPENTITYPROTOCOLVERSION: | |
306 | return SNMP_INTEGER(LDP_VERSION); | |
307 | case MPLSLDPENTITYADMINSTATUS: | |
308 | return SNMP_INTEGER(ADMINSTATUSENABLED); | |
309 | case MPLSLDPENTITYOPERSTATUS: | |
310 | return SNMP_INTEGER(OPERSTATUSENABLED); | |
311 | case MPLSLDPENTITYTCPPORT: | |
312 | return SNMP_INTEGER(LDP_PORT); | |
313 | case MPLSLDPENTITYUDPDSCPORT: | |
314 | return SNMP_INTEGER(LDP_PORT); | |
315 | case MPLSLDPENTITYMAXPDULENGTH: | |
316 | return SNMP_INTEGER(LDP_MAX_LEN); | |
317 | case MPLSLDPENTITYKEEPALIVEHOLDTIMER: | |
318 | return SNMP_INTEGER(af->keepalive); | |
319 | case MPLSLDPENTITYHELLOHOLDTIMER: | |
320 | return SNMP_INTEGER(af->lhello_holdtime); | |
321 | case MPLSLDPENTITYINITSESSIONTHRESHOLD: | |
322 | return SNMP_INTEGER(0); /* not supported */ | |
323 | case MPLSLDPENTITYLABELDISTMETHOD: | |
324 | return SNMP_INTEGER(DOWNSTREAMUNSOLICITED); | |
325 | case MPLSLDPENTITYLABELRETENTIONMODE: | |
326 | return SNMP_INTEGER(LIBERALRETENTION); | |
327 | case MPLSLDPENTITYPATHVECTORLIMIT: | |
328 | return SNMP_INTEGER(0); /* not supported */ | |
329 | case MPLSLDPENTITYHOPCOUNTLIMIT: | |
330 | return SNMP_INTEGER(0); | |
331 | case MPLSLDPENTITYTRANSPORTADDRKIND: | |
332 | return SNMP_INTEGER(TRANSPORTADDRLOOPBACK); | |
333 | case MPLSLDPENTITYTARGETPEER: | |
334 | return SNMP_INTEGER(1); | |
335 | case MPLSLDPENTITYTARGETPEERADDRTYPE: | |
336 | if (index == 1) | |
337 | return SNMP_INTEGER(MPLSLDPPEERTRANSPORTADDRTYPE_IPV4); | |
338 | else | |
339 | return SNMP_INTEGER(MPLSLDPPEERTRANSPORTADDRTYPE_IPV6); | |
340 | case MPLSLDPENTITYTARGETPEERADDR: | |
341 | if (index == 1) { | |
342 | *var_len = sizeof(af->trans_addr.v4); | |
343 | return ((uint8_t *)&af->trans_addr.v4); | |
344 | }else { | |
345 | *var_len = sizeof(af->trans_addr.v6); | |
346 | return ((uint8_t *)&af->trans_addr.v6); | |
347 | } | |
348 | case MPLSLDPENTITYLABELTYPE: | |
349 | return SNMP_INTEGER(LABELTYPEGENERIC); | |
350 | case MPLSLDPENTITYDISCONTINUITYTIME: | |
351 | return SNMP_INTEGER(0); | |
352 | case MPLSLDPENTITYSTORAGETYPE: | |
353 | return SNMP_INTEGER(STORAGETYPENONVOLATILE); | |
354 | case MPLSLDPENTITYROWSTATUS: | |
355 | return SNMP_INTEGER(ROWSTATUSACTIVE); | |
356 | default: | |
357 | return NULL; | |
358 | } | |
359 | ||
360 | return NULL; | |
361 | } | |
362 | ||
d4d6e7d8 KS |
363 | static uint8_t *ldpEntityStatsTable(struct variable *v, oid name[], |
364 | size_t *length, int exact, size_t *var_len, | |
365 | WriteMethod **write_method) | |
366 | { | |
367 | struct in_addr entityLdpId = {.s_addr = 0}; | |
368 | int len; | |
369 | ||
370 | *write_method = NULL; | |
371 | ||
372 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
373 | == MATCH_FAILED) | |
374 | return NULL; | |
375 | ||
376 | if (exact) { | |
377 | if (*length != LDP_ENTITY_TOTAL_LEN) | |
378 | return NULL; | |
379 | } else { | |
380 | len = *length - v->namelen - LDP_ENTITY_MAX_IDX_LEN; | |
381 | if (len > 0) | |
382 | return NULL; | |
383 | ||
384 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
385 | ||
386 | /* Copy the name out */ | |
387 | memcpy(name, v->name, v->namelen * sizeof(oid)); | |
388 | ||
389 | /* Append index */ | |
390 | *length = LDP_ENTITY_TOTAL_LEN; | |
9e263221 | 391 | oid_copy_in_addr(name + v->namelen, &entityLdpId); |
d4d6e7d8 KS |
392 | name[v->namelen + 4] = 0; |
393 | name[v->namelen + 5] = 0; | |
394 | name[v->namelen + 6] = LDP_DEFAULT_ENTITY_INDEX; | |
395 | } | |
396 | ||
397 | /* Return the current value of the variable */ | |
398 | switch (v->magic) { | |
399 | case MPLSLDPENTITYSTATSSESSIONATTEMPTS: | |
400 | return SNMP_INTEGER(leconf->stats.session_attempts); | |
401 | case MPLSLDPENTITYSTATSSESSIONREJHELLO: | |
402 | return SNMP_INTEGER(leconf->stats.session_rejects_hello); | |
403 | case MPLSLDPENTITYSTATSSESSIONREJAD: | |
404 | return SNMP_INTEGER(leconf->stats.session_rejects_ad); | |
405 | case MPLSLDPENTITYSTATSSESSIONREJMAXPDU: | |
406 | return SNMP_INTEGER(leconf->stats.session_rejects_max_pdu); | |
407 | case MPLSLDPENTITYSTATSSESSIONREJLR: | |
408 | return SNMP_INTEGER(leconf->stats.session_rejects_lr); | |
409 | case MPLSLDPENTITYSTATSBADLDPID: | |
410 | return SNMP_INTEGER(leconf->stats.bad_ldp_id); | |
411 | case MPLSLDPENTITYSTATSBADPDULENGTH: | |
412 | return SNMP_INTEGER(leconf->stats.bad_pdu_len); | |
413 | case MPLSLDPENTITYSTATSBADMSGLENGTH: | |
414 | return SNMP_INTEGER(leconf->stats.bad_msg_len); | |
415 | case MPLSLDPENTITYSTATSBADTLVLENGTH: | |
416 | return SNMP_INTEGER(leconf->stats.bad_tlv_len); | |
417 | case MPLSLDPENTITYSTATSMALFORMEDTLV: | |
418 | return SNMP_INTEGER(leconf->stats.malformed_tlv); | |
419 | case MPLSLDPENTITYSTATSKEEPALIVEEXP: | |
420 | return SNMP_INTEGER(leconf->stats.keepalive_timer_exp); | |
421 | case MPLSLDPENTITYSTATSSHUTDOWNRCVNOTIFY: | |
422 | return SNMP_INTEGER(leconf->stats.shutdown_rcv_notify); | |
423 | case MPLSLDPENTITYSTATSSHUTDOWNSENTNOTIFY: | |
424 | return SNMP_INTEGER(leconf->stats.shutdown_send_notify); | |
425 | default: | |
426 | return NULL; | |
427 | } | |
428 | ||
429 | return NULL; | |
430 | } | |
431 | ||
f9a4d683 KS |
432 | #define LDP_ADJACENCY_ENTRY_MAX_IDX_LEN 14 |
433 | ||
434 | static void ldpHelloAdjacencyTable_oid_to_index( | |
435 | struct variable *v, oid name[], | |
436 | size_t *length, | |
437 | struct in_addr *entityLdpId, | |
438 | uint32_t *entityIndex, | |
439 | struct in_addr *peerLdpId, | |
440 | uint32_t *adjacencyIndex) | |
441 | { | |
442 | oid *offset = name + v->namelen; | |
443 | int offsetlen = *length - v->namelen; | |
444 | int len = offsetlen; | |
445 | ||
446 | if (len > LDP_ADJACENCY_ENTRY_MAX_IDX_LEN) | |
447 | len = LDP_ADJACENCY_ENTRY_MAX_IDX_LEN; | |
448 | ||
449 | if (len >= LDP_LSRID_IDX_LEN) | |
450 | oid2in_addr(offset, sizeof(struct in_addr), entityLdpId); | |
451 | ||
452 | offset += LDP_LSRID_IDX_LEN; | |
453 | offsetlen -= LDP_LSRID_IDX_LEN; | |
454 | len = offsetlen; | |
455 | ||
456 | if (len > LDP_ENTITY_IDX_LEN) | |
457 | len = LDP_ENTITY_IDX_LEN; | |
458 | ||
459 | if (len >= LDP_ENTITY_IDX_LEN) | |
460 | *entityIndex = offset[0]; | |
461 | ||
462 | offset += LDP_ENTITY_IDX_LEN; | |
463 | offsetlen -= LDP_ENTITY_IDX_LEN; | |
464 | len = offsetlen; | |
465 | ||
466 | if (len > LDP_LSRID_IDX_LEN) | |
467 | len = LDP_LSRID_IDX_LEN; | |
468 | ||
469 | if (len >= LDP_LSRID_IDX_LEN) | |
470 | oid2in_addr(offset, sizeof(struct in_addr), peerLdpId); | |
471 | ||
472 | offset += LDP_LSRID_IDX_LEN; | |
473 | offsetlen -= LDP_LSRID_IDX_LEN; | |
474 | len = offsetlen; | |
475 | ||
476 | if (len > LDP_ADJACENCY_IDX_LEN) | |
477 | len = LDP_ADJACENCY_IDX_LEN; | |
478 | ||
479 | if (len >= LDP_ADJACENCY_IDX_LEN) | |
480 | *adjacencyIndex = offset[0]; | |
481 | } | |
482 | ||
483 | static struct adj * | |
484 | nbr_get_adj_by_index(struct nbr *nbr, uint32_t adjacencyIndex) | |
485 | { | |
486 | struct adj *adj; | |
487 | uint32_t i = 0; | |
488 | ||
489 | RB_FOREACH(adj, nbr_adj_head, &nbr->adj_tree) | |
490 | if (++i == adjacencyIndex) | |
491 | return adj; | |
492 | ||
493 | return NULL; | |
494 | } | |
495 | ||
496 | static struct ctl_adj * | |
497 | ldpHelloAdjacencyTable_lookup_helper( | |
498 | struct in_addr *entityLdpId, | |
499 | uint32_t *entityIndex, | |
500 | struct in_addr *peerLdpId, | |
501 | uint32_t *adjacencyIndex) | |
502 | { | |
503 | struct ctl_adj *ctl_adj = NULL; | |
504 | struct adj *adj = NULL; | |
505 | struct nbr *cur_nbr = nbr_find_ldpid(peerLdpId->s_addr); | |
506 | ||
507 | if (cur_nbr) | |
508 | /* If found nbr, then look to see if the | |
509 | * adjacency exists | |
510 | */ | |
511 | adj = nbr_get_adj_by_index(cur_nbr, *adjacencyIndex); | |
512 | ||
513 | if (adj) | |
514 | ctl_adj = adj_to_ctl(adj); | |
515 | ||
516 | return ctl_adj; | |
517 | } | |
518 | ||
519 | static struct ctl_adj * | |
520 | ldpHelloAdjacencyTable_next_helper( | |
521 | int first, | |
522 | struct in_addr *entityLdpId, | |
523 | uint32_t *entityIndex, | |
524 | struct in_addr *peerLdpId, | |
525 | uint32_t *adjacencyIndex) | |
526 | { | |
527 | struct ctl_adj *ctl_adj = NULL; | |
528 | struct nbr *nbr = NULL; | |
529 | struct adj *adj = NULL; | |
530 | ||
531 | if (first) | |
532 | nbr = nbr_get_first_ldpid(); | |
533 | else { | |
534 | struct nbr *cur_nbr = nbr_find_ldpid(peerLdpId->s_addr); | |
535 | if (cur_nbr) | |
536 | /* If found nbr, then look to see if the | |
537 | * adjacency exists | |
538 | */ | |
539 | adj = nbr_get_adj_by_index(cur_nbr, *adjacencyIndex + 1); | |
540 | if (adj) | |
541 | *adjacencyIndex += 1; | |
542 | else | |
543 | nbr = nbr_get_next_ldpid(peerLdpId->s_addr); | |
544 | } | |
545 | ||
546 | if (!adj && nbr) { | |
547 | adj = RB_MIN(nbr_adj_head, &nbr->adj_tree); | |
548 | *adjacencyIndex = 1; | |
549 | } | |
550 | ||
551 | if (adj) | |
552 | ctl_adj = adj_to_ctl(adj); | |
553 | ||
554 | return ctl_adj; | |
555 | } | |
556 | ||
557 | #define HELLO_ADJ_MAX_IDX_LEN 14 | |
558 | ||
559 | static struct ctl_adj * | |
560 | ldpHelloAdjacencyTable_lookup(struct variable *v, oid name[], | |
561 | size_t *length, int exact, | |
562 | struct in_addr *entityLdpId, | |
563 | uint32_t *entityIndex, | |
564 | struct in_addr *peerLdpId, | |
565 | uint32_t *adjacencyIndex) | |
566 | { | |
567 | struct ctl_adj *hello_adj = NULL; | |
568 | ||
569 | if (exact) { | |
570 | if (*length < HELLO_ADJ_MAX_IDX_LEN) | |
571 | return NULL; | |
572 | ||
573 | ldpHelloAdjacencyTable_oid_to_index( | |
574 | v, name, length, | |
575 | entityLdpId, entityIndex, peerLdpId, adjacencyIndex); | |
576 | ||
577 | hello_adj = ldpHelloAdjacencyTable_lookup_helper( | |
578 | entityLdpId, entityIndex, peerLdpId, adjacencyIndex); | |
579 | } else { | |
580 | int first = 0; | |
581 | int offsetlen = *length - v->namelen; | |
582 | ||
583 | if (offsetlen < HELLO_ADJ_MAX_IDX_LEN) | |
584 | first = 1; | |
585 | ||
586 | ldpHelloAdjacencyTable_oid_to_index( | |
587 | v, name, length, | |
588 | entityLdpId, entityIndex, peerLdpId, adjacencyIndex); | |
589 | ||
590 | hello_adj = ldpHelloAdjacencyTable_next_helper(first, | |
591 | entityLdpId, entityIndex, peerLdpId, adjacencyIndex); | |
592 | ||
593 | } | |
594 | return hello_adj; | |
595 | } | |
596 | ||
597 | static uint8_t *ldpHelloAdjacencyTable(struct variable *v, oid name[], size_t *length, | |
598 | int exact, size_t *var_len, | |
599 | WriteMethod **write_method) | |
600 | { | |
601 | struct in_addr entityLdpId = {.s_addr = 0}; | |
602 | uint32_t entityIndex = 0; | |
603 | struct in_addr peerLdpId = {.s_addr = 0}; | |
604 | uint32_t adjacencyIndex = 0; | |
605 | ||
606 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
607 | == MATCH_FAILED) | |
608 | return NULL; | |
609 | ||
610 | struct ctl_adj *ctl_adj = ldpHelloAdjacencyTable_lookup(v, name, | |
611 | length, exact, | |
612 | &entityLdpId, &entityIndex, &peerLdpId, &adjacencyIndex); | |
613 | ||
614 | if (!ctl_adj) | |
615 | return NULL; | |
616 | ||
617 | if (!exact) { | |
618 | ||
619 | /* Copy the name out */ | |
620 | memcpy(name, v->name, v->namelen * sizeof(oid)); | |
621 | ||
622 | /* Append index */ | |
623 | struct in_addr entityLdpId = {.s_addr = 0}; | |
624 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
625 | ||
626 | struct in_addr peerLdpId = ctl_adj->id; | |
627 | ||
9e263221 | 628 | oid_copy_in_addr(name + v->namelen, &entityLdpId); |
f9a4d683 KS |
629 | name[v->namelen + 4] = 0; |
630 | name[v->namelen + 5] = 0; | |
631 | name[v->namelen + 6] = LDP_DEFAULT_ENTITY_INDEX; | |
9e263221 | 632 | oid_copy_in_addr(name + v->namelen + 7, &peerLdpId); |
f9a4d683 KS |
633 | name[v->namelen + 11] = 0; |
634 | name[v->namelen + 12] = 0; | |
635 | name[v->namelen + 13] = adjacencyIndex; | |
636 | ||
637 | /* Set length */ | |
638 | *length = v->namelen + HELLO_ADJ_MAX_IDX_LEN; | |
639 | } | |
640 | ||
641 | switch (v->magic) { | |
642 | case MPLSLDPHELLOADJACENCYINDEX: | |
643 | return SNMP_INTEGER(adjacencyIndex); | |
644 | case MPLSLDPHELLOADJACENCYHOLDTIMEREM: | |
645 | return SNMP_INTEGER(ctl_adj->holdtime_remaining); | |
646 | case MPLSLDPHELLOADJACENCYHOLDTIME: | |
647 | return SNMP_INTEGER(ctl_adj->holdtime); | |
648 | case MPLSLDPHELLOADJACENCYTYPE: | |
649 | if (ctl_adj->type == HELLO_LINK) | |
650 | return SNMP_INTEGER(MPLSLDPHELLOADJACENCYTYPE_LINK); | |
651 | return SNMP_INTEGER(MPLSLDPHELLOADJACENCYTYPE_TARGETED); | |
652 | default: | |
653 | return NULL; | |
654 | } | |
655 | ||
656 | return NULL; | |
657 | } | |
658 | ||
659 | #define LDP_LSRID_IDX_LEN 6 | |
660 | #define LDP_ENTITY_IDX_LEN 1 | |
661 | #define LDP_PEER_ENTRY_MAX_IDX_LEN 13 | |
662 | ||
663 | static void ldpPeerTable_oid_to_index( | |
664 | struct variable *v, oid name[], | |
665 | size_t *length, | |
666 | struct in_addr *entityLdpId, | |
667 | uint32_t *entityIndex, | |
668 | struct in_addr *peerLdpId) | |
669 | { | |
670 | oid *offset = name + v->namelen; | |
671 | int offsetlen = *length - v->namelen; | |
672 | int len = offsetlen; | |
673 | ||
674 | if (len > LDP_PEER_ENTRY_MAX_IDX_LEN) | |
675 | len = LDP_PEER_ENTRY_MAX_IDX_LEN; | |
676 | ||
677 | if (len >= LDP_LSRID_IDX_LEN) | |
678 | oid2in_addr(offset, sizeof(struct in_addr), entityLdpId); | |
679 | ||
680 | offset += LDP_LSRID_IDX_LEN; | |
681 | offsetlen -= LDP_LSRID_IDX_LEN; | |
682 | len = offsetlen; | |
683 | ||
684 | if (len > LDP_ENTITY_IDX_LEN) | |
685 | len = LDP_ENTITY_IDX_LEN; | |
686 | ||
687 | if (len >= LDP_ENTITY_IDX_LEN) | |
688 | *entityIndex = offset[0]; | |
689 | ||
690 | offset += LDP_ENTITY_IDX_LEN; | |
691 | offsetlen -= LDP_ENTITY_IDX_LEN; | |
692 | len = offsetlen; | |
693 | ||
694 | if (len > LDP_LSRID_IDX_LEN) | |
695 | len = LDP_LSRID_IDX_LEN; | |
696 | ||
697 | if (len >= LDP_LSRID_IDX_LEN) | |
698 | oid2in_addr(offset, sizeof(struct in_addr), peerLdpId); | |
699 | } | |
700 | ||
701 | static struct ctl_nbr * | |
702 | ldpPeerTable_lookup_next(int first, | |
703 | struct in_addr peerLdpId) | |
704 | { | |
705 | struct nbr *nbr = NULL; | |
706 | struct ctl_nbr *ctl_nbr = NULL;; | |
707 | ||
708 | if (first) | |
709 | nbr = nbr_get_first_ldpid(); | |
710 | else | |
711 | nbr = nbr_get_next_ldpid(peerLdpId.s_addr); | |
712 | ||
713 | if (nbr) | |
714 | ctl_nbr = nbr_to_ctl(nbr); | |
715 | ||
716 | return ctl_nbr; | |
717 | } | |
718 | ||
719 | static struct ctl_nbr * | |
720 | ldpPeerTable_lookup(struct variable *v, oid name[], | |
721 | size_t *length, int exact, | |
722 | struct in_addr *entityLdpId, | |
723 | uint32_t *entityIndex, | |
724 | struct in_addr *peerLdpId) | |
725 | { | |
726 | struct ctl_nbr *ctl_nbr = NULL; | |
727 | struct nbr *nbr = NULL; | |
728 | int first = 0; | |
729 | ||
730 | if (exact) { | |
731 | if (*length < (long unsigned int)v->namelen | |
732 | + LDP_PEER_ENTRY_MAX_IDX_LEN) | |
733 | return NULL; | |
734 | ||
735 | ldpPeerTable_oid_to_index( | |
736 | v, name, length, | |
737 | entityLdpId, entityIndex, peerLdpId); | |
738 | ||
739 | nbr = nbr_find_ldpid(peerLdpId->s_addr); | |
740 | if (nbr) | |
741 | ctl_nbr = nbr_to_ctl(nbr); | |
742 | ||
743 | return ctl_nbr; | |
744 | } else { | |
745 | ||
746 | int offsetlen = *length - v->namelen; | |
747 | if (offsetlen < LDP_LSRID_IDX_LEN) | |
748 | first = 1; | |
749 | ||
750 | ldpPeerTable_oid_to_index( | |
751 | v, name, length, | |
752 | entityLdpId, entityIndex, peerLdpId); | |
753 | ||
754 | ctl_nbr = ldpPeerTable_lookup_next(first, *peerLdpId); | |
755 | return ctl_nbr; | |
756 | } | |
757 | return NULL; | |
758 | } | |
759 | ||
760 | static uint8_t *ldpPeerTable(struct variable *v, oid name[], size_t *length, | |
761 | int exact, size_t *var_len, | |
762 | WriteMethod **write_method) | |
763 | { | |
764 | struct in_addr entityLdpId = {.s_addr = 0}; | |
765 | uint32_t entityIndex = 0; | |
766 | struct in_addr peerLdpId = {.s_addr = 0}; | |
767 | struct ctl_nbr *ctl_nbr; | |
768 | ||
769 | ||
770 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
771 | == MATCH_FAILED) | |
772 | return NULL; | |
773 | ||
774 | ctl_nbr = ldpPeerTable_lookup(v, name, length, exact, &entityLdpId, | |
775 | &entityIndex, &peerLdpId); | |
776 | ||
777 | if (!ctl_nbr) | |
778 | return NULL; | |
779 | ||
780 | if (!exact) { | |
781 | ||
782 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
783 | entityIndex = LDP_DEFAULT_ENTITY_INDEX; | |
784 | peerLdpId = ctl_nbr->id; | |
785 | ||
786 | /* Copy the name out */ | |
787 | memcpy(name, v->name, v->namelen * sizeof(oid)); | |
788 | ||
789 | /* Append index */ | |
9e263221 | 790 | oid_copy_in_addr(name + v->namelen, &entityLdpId); |
f9a4d683 KS |
791 | |
792 | name[v->namelen + 4] = 0; | |
793 | name[v->namelen + 5] = 0; | |
794 | name[v->namelen + 6] = entityIndex; | |
9e263221 | 795 | oid_copy_in_addr(name + v->namelen + 7, &peerLdpId); |
f9a4d683 KS |
796 | name[v->namelen + 11] = 0; |
797 | name[v->namelen + 12] = 0; | |
798 | ||
799 | /* Set length */ | |
800 | *length = v->namelen + LDP_PEER_ENTRY_MAX_IDX_LEN; | |
801 | } | |
802 | ||
803 | switch (v->magic) { | |
804 | case MPLSLDPPEERLDPID: | |
805 | *var_len = 6; | |
806 | memcpy(snmp_ldp_rtrid, &ctl_nbr->id, IN_ADDR_SIZE); | |
807 | return snmp_ldp_rtrid; | |
808 | case MPLSLDPPEERLABELDISTMETHOD: | |
809 | return SNMP_INTEGER(DOWNSTREAMUNSOLICITED); | |
810 | case MPLSLDPPEERPATHVECTORLIMIT: | |
811 | return SNMP_INTEGER(0); | |
812 | case MPLSLDPPEERTRANSPORTADDRTYPE: | |
813 | if (ctl_nbr->af == AF_INET) | |
814 | return SNMP_INTEGER(MPLSLDPPEERTRANSPORTADDRTYPE_IPV4); | |
815 | else | |
816 | return SNMP_INTEGER(MPLSLDPPEERTRANSPORTADDRTYPE_IPV6); | |
817 | case MPLSLDPPEERTRANSPORTADDR: | |
818 | if (ctl_nbr->af == AF_INET) { | |
819 | *var_len = sizeof(ctl_nbr->raddr.v4); | |
820 | return ((uint8_t *)&ctl_nbr->raddr.v4); | |
821 | } else { | |
822 | *var_len = sizeof(ctl_nbr->raddr.v6); | |
823 | return ((uint8_t *)&ctl_nbr->raddr.v6); | |
824 | } | |
825 | default: | |
826 | return NULL; | |
827 | } | |
828 | ||
829 | return NULL; | |
830 | } | |
831 | static uint8_t *ldpSessionTable(struct variable *v, oid name[], size_t *length, | |
832 | int exact, size_t *var_len, | |
833 | WriteMethod **write_method) | |
834 | { | |
835 | struct in_addr entityLdpId = {.s_addr = 0}; | |
836 | uint32_t entityIndex = 0; | |
837 | struct in_addr peerLdpId = {.s_addr = 0}; | |
838 | struct ctl_nbr *ctl_nbr; | |
839 | ||
840 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
841 | == MATCH_FAILED) | |
842 | return NULL; | |
843 | ||
844 | ctl_nbr = ldpPeerTable_lookup(v, name, length, exact, &entityLdpId, | |
845 | &entityIndex, &peerLdpId); | |
846 | ||
847 | if (!ctl_nbr) | |
848 | return NULL; | |
849 | ||
850 | if (!exact) { | |
851 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
852 | entityIndex = LDP_DEFAULT_ENTITY_INDEX; | |
853 | peerLdpId = ctl_nbr->id; | |
854 | ||
855 | /* Copy the name out */ | |
856 | memcpy(name, v->name, v->namelen * sizeof(oid)); | |
857 | ||
858 | /* Append index */ | |
9e263221 | 859 | oid_copy_in_addr(name + v->namelen, &entityLdpId); |
f9a4d683 KS |
860 | |
861 | name[v->namelen + 4] = 0; | |
862 | name[v->namelen + 5] = 0; | |
863 | name[v->namelen + 6] = entityIndex; | |
9e263221 | 864 | oid_copy_in_addr(name + v->namelen + 7, &peerLdpId); |
f9a4d683 KS |
865 | name[v->namelen + 11] = 0; |
866 | name[v->namelen + 12] = 0; | |
867 | ||
868 | /* Set length */ | |
869 | *length = v->namelen + LDP_PEER_ENTRY_MAX_IDX_LEN; | |
870 | } | |
871 | ||
872 | switch (v->magic) { | |
873 | case MPLSLDPSESSIONSTATELASTCHANGE: | |
874 | *var_len = sizeof(time_t); | |
875 | return (uint8_t *) &(ctl_nbr->uptime); | |
876 | case MPLSLDPSESSIONSTATE: | |
877 | switch (ctl_nbr->nbr_state) { | |
878 | case NBR_STA_INITIAL: | |
879 | return SNMP_INTEGER(MPLSLDPSESSIONSTATE_INITIALIZED); | |
880 | case NBR_STA_OPENREC: | |
881 | return SNMP_INTEGER(MPLSLDPSESSIONSTATE_OPENREC); | |
882 | case NBR_STA_OPENSENT: | |
883 | return SNMP_INTEGER(MPLSLDPSESSIONSTATE_OPENSENT); | |
884 | case NBR_STA_OPER: | |
885 | return SNMP_INTEGER(MPLSLDPSESSIONSTATE_OPERATIONAL); | |
886 | default: | |
887 | return SNMP_INTEGER(MPLSLDPSESSIONSTATE_NONEXISTENT); | |
888 | } | |
889 | case MPLSLDPSESSIONROLE: | |
890 | if (ldp_addrcmp(ctl_nbr->af, &ctl_nbr->laddr, &ctl_nbr->raddr) | |
891 | > 0) | |
892 | return SNMP_INTEGER(MPLSLDPSESSIONROLE_ACTIVE); | |
893 | else | |
894 | return SNMP_INTEGER(MPLSLDPSESSIONROLE_PASSIVE); | |
895 | case MPLSLDPSESSIONPROTOCOLVERSION: | |
896 | return SNMP_INTEGER(LDP_VERSION); | |
897 | case MPLSLDPSESSIONKEEPALIVEHOLDTIMEREM: | |
898 | return SNMP_INTEGER(ctl_nbr->hold_time_remaining); | |
899 | case MPLSLDPSESSIONKEEPALIVETIME: | |
900 | return SNMP_INTEGER(ctl_nbr->holdtime); | |
901 | case MPLSLDPSESSIONMAXPDULENGTH: | |
902 | if (ctl_nbr->nbr_state == NBR_STA_OPER) | |
903 | return SNMP_INTEGER(ctl_nbr->max_pdu_len); | |
904 | else | |
905 | return SNMP_INTEGER(LDP_MAX_LEN); | |
906 | case MPLSLDPSESSIONDISCONTINUITYTIME: | |
907 | return SNMP_INTEGER(0); /* not supported */ | |
908 | default: | |
909 | return NULL; | |
910 | } | |
911 | ||
912 | return NULL; | |
913 | } | |
914 | ||
d4d6e7d8 KS |
915 | static uint8_t *ldpSessionStatsTable(struct variable *v, oid name[], |
916 | size_t *length, | |
917 | int exact, size_t *var_len, | |
918 | WriteMethod **write_method) | |
919 | { | |
920 | struct in_addr entityLdpId = {.s_addr = 0}; | |
921 | uint32_t entityIndex = 0; | |
922 | struct in_addr peerLdpId = {.s_addr = 0}; | |
923 | ||
924 | if (smux_header_table(v, name, length, exact, var_len, write_method) | |
925 | == MATCH_FAILED) | |
926 | return NULL; | |
927 | ||
928 | struct ctl_nbr *ctl_nbr = ldpPeerTable_lookup(v, name, length, exact, | |
929 | &entityLdpId, &entityIndex, &peerLdpId); | |
930 | ||
931 | if (!ctl_nbr) | |
932 | return NULL; | |
933 | ||
934 | if (!exact) { | |
935 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
936 | entityIndex = LDP_DEFAULT_ENTITY_INDEX; | |
937 | peerLdpId = ctl_nbr->id; | |
938 | ||
939 | /* Copy the name out */ | |
940 | memcpy(name, v->name, v->namelen * sizeof(oid)); | |
941 | ||
942 | /* Append index */ | |
9e263221 | 943 | oid_copy_in_addr(name + v->namelen, &entityLdpId); |
d4d6e7d8 KS |
944 | name[v->namelen + 4] = 0; |
945 | name[v->namelen + 5] = 0; | |
946 | name[v->namelen + 6] = entityIndex; | |
9e263221 | 947 | oid_copy_in_addr(name + v->namelen + 7, &peerLdpId); |
d4d6e7d8 KS |
948 | name[v->namelen + 11] = 0; |
949 | name[v->namelen + 12] = 0; | |
950 | ||
951 | *length = v->namelen + LDP_PEER_ENTRY_MAX_IDX_LEN; | |
952 | } | |
953 | ||
954 | switch (v->magic) { | |
955 | case MPLSLDPSESSIONSTATSUNKNOWNMESTYPEERRORS: | |
956 | return SNMP_INTEGER(ctl_nbr->stats.unknown_msg); | |
957 | case MPLSLDPSESSIONSTATSUNKNOWNTLVERRORS: | |
958 | return SNMP_INTEGER(ctl_nbr->stats.unknown_tlv); | |
959 | default: | |
960 | return NULL; | |
961 | } | |
962 | ||
963 | return NULL; | |
964 | } | |
965 | ||
f9a4d683 KS |
966 | static struct variable ldpe_variables[] = { |
967 | {MPLS_LDP_LSR_ID, STRING, RONLY, ldpLsrId, 3, {1, 1, 1}}, | |
968 | {MPLS_LDP_LSR_LOOP_DETECTION_CAPABLE, INTEGER, RONLY, | |
969 | ldpLoopDetectCap, 3, {1, 1, 2}}, | |
970 | {MPLS_LDP_ENTITY_LAST_CHANGE, TIMESTAMP, RONLY, ldpEntityLastChange, | |
971 | 3, {1, 2, 1}}, | |
972 | {MPLS_LDP_ENTITY_INDEX_NEXT, UNSIGNED32, RONLY, ldpEntityIndexNext, | |
973 | 3, {1, 2, 2}}, | |
974 | ||
975 | /* MPLS LDP mplsLdpEntityTable. */ | |
976 | {MPLSLDPENTITYLDPID, STRING, RONLY, ldpEntityTable, | |
977 | 5, {1, 2, 3, 1, 1}}, | |
978 | {MPLSLDPENTITYINDEX, UNSIGNED32, RONLY, ldpEntityTable, | |
979 | 5, {1, 2, 3, 1, 2}}, | |
980 | {MPLSLDPENTITYPROTOCOLVERSION, UNSIGNED32, RONLY, ldpEntityTable, | |
981 | 5, {1, 2, 3, 1, 3}}, | |
982 | {MPLSLDPENTITYADMINSTATUS, INTEGER, RONLY, ldpEntityTable, | |
983 | 5, {1, 2, 3, 1, 4}}, | |
984 | {MPLSLDPENTITYOPERSTATUS, INTEGER, RONLY, ldpEntityTable, | |
985 | 5, {1, 2, 3, 1, 5}}, | |
986 | {MPLSLDPENTITYTCPPORT, UNSIGNED32, RONLY, ldpEntityTable, | |
987 | 5, {1, 2, 3, 1, 6}}, | |
988 | {MPLSLDPENTITYUDPDSCPORT, UNSIGNED32, RONLY, ldpEntityTable, | |
989 | 5, {1, 2, 3, 1, 7}}, | |
990 | {MPLSLDPENTITYMAXPDULENGTH, UNSIGNED32, RONLY, ldpEntityTable, | |
991 | 5, {1, 2, 3, 1, 8}}, | |
992 | {MPLSLDPENTITYKEEPALIVEHOLDTIMER, UNSIGNED32, RONLY, ldpEntityTable, | |
993 | 5, {1, 2, 3, 1, 9}}, | |
994 | {MPLSLDPENTITYHELLOHOLDTIMER, UNSIGNED32, RONLY, ldpEntityTable, | |
995 | 5, {1, 2, 3, 1, 10}}, | |
996 | {MPLSLDPENTITYINITSESSIONTHRESHOLD, INTEGER, RONLY, ldpEntityTable, | |
997 | 5, {1, 2, 3, 1, 11}}, | |
998 | {MPLSLDPENTITYLABELDISTMETHOD, INTEGER, RONLY, ldpEntityTable, | |
999 | 5, {1, 2, 3, 1, 12}}, | |
1000 | {MPLSLDPENTITYLABELRETENTIONMODE, INTEGER, RONLY, ldpEntityTable, | |
1001 | 5, {1, 2, 3, 1, 13}}, | |
1002 | {MPLSLDPENTITYPATHVECTORLIMIT, INTEGER, RONLY, ldpEntityTable, | |
1003 | 5, {1, 2, 3, 1, 14}}, | |
1004 | {MPLSLDPENTITYHOPCOUNTLIMIT, INTEGER, RONLY, ldpEntityTable, | |
1005 | 5, {1, 2, 3, 1, 15}}, | |
1006 | {MPLSLDPENTITYTRANSPORTADDRKIND, INTEGER, RONLY, ldpEntityTable, | |
1007 | 5, {1, 2, 3, 1, 16}}, | |
1008 | {MPLSLDPENTITYTARGETPEER, INTEGER, RONLY, ldpEntityTable, | |
1009 | 5, {1, 2, 3, 1, 17}}, | |
1010 | {MPLSLDPENTITYTARGETPEERADDRTYPE, INTEGER, RONLY, ldpEntityTable, | |
1011 | 5, {1, 2, 3, 1, 18}}, | |
1012 | {MPLSLDPENTITYTARGETPEERADDR, STRING, RONLY, ldpEntityTable, | |
1013 | 5, {1, 2, 3, 1, 19}}, | |
1014 | {MPLSLDPENTITYLABELTYPE, INTEGER, RONLY, ldpEntityTable, | |
1015 | 5, {1, 2, 3, 1, 20}}, | |
1016 | {MPLSLDPENTITYDISCONTINUITYTIME, TIMESTAMP, RONLY, ldpEntityTable, | |
1017 | 5, {1, 2, 3, 1, 21}}, | |
1018 | {MPLSLDPENTITYSTORAGETYPE, INTEGER, RONLY, ldpEntityTable, | |
1019 | 5, {1, 2, 3, 1, 22}}, | |
1020 | {MPLSLDPENTITYROWSTATUS, INTEGER, RONLY, ldpEntityTable, | |
1021 | 5, {1, 2, 3, 1, 23}}, | |
1022 | ||
d4d6e7d8 KS |
1023 | /* MPLS LDP mplsLdpEntityStatsTable. */ |
1024 | { MPLSLDPENTITYSTATSSESSIONATTEMPTS, COUNTER32, RONLY, | |
1025 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 1}}, | |
1026 | { MPLSLDPENTITYSTATSSESSIONREJHELLO, COUNTER32, RONLY, | |
1027 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 2}}, | |
1028 | { MPLSLDPENTITYSTATSSESSIONREJAD, COUNTER32, RONLY, | |
1029 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 3}}, | |
1030 | { MPLSLDPENTITYSTATSSESSIONREJMAXPDU, COUNTER32, RONLY, | |
1031 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 4}}, | |
1032 | { MPLSLDPENTITYSTATSSESSIONREJLR, COUNTER32, RONLY, | |
1033 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 5}}, | |
1034 | { MPLSLDPENTITYSTATSBADLDPID, COUNTER32, RONLY, | |
1035 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 6}}, | |
1036 | { MPLSLDPENTITYSTATSBADPDULENGTH, COUNTER32, RONLY, | |
1037 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 7}}, | |
1038 | { MPLSLDPENTITYSTATSBADMSGLENGTH, COUNTER32, RONLY, | |
1039 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 8}}, | |
1040 | { MPLSLDPENTITYSTATSBADTLVLENGTH, COUNTER32, RONLY, | |
1041 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 9}}, | |
1042 | { MPLSLDPENTITYSTATSMALFORMEDTLV, COUNTER32, RONLY, | |
1043 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 10}}, | |
1044 | { MPLSLDPENTITYSTATSKEEPALIVEEXP, COUNTER32, RONLY, | |
1045 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 11}}, | |
1046 | { MPLSLDPENTITYSTATSSHUTDOWNRCVNOTIFY, COUNTER32, RONLY, | |
1047 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 12}}, | |
1048 | { MPLSLDPENTITYSTATSSHUTDOWNSENTNOTIFY, COUNTER32, RONLY, | |
1049 | ldpEntityStatsTable, 5, {1, 2, 4, 1, 13}}, | |
1050 | ||
f9a4d683 KS |
1051 | /* MPLS LDP mplsLdpPeerTable */ |
1052 | {MPLSLDPPEERLDPID, STRING, RONLY, ldpPeerTable, 5, {1, 3, 2, 1, 1}}, | |
1053 | {MPLSLDPPEERLABELDISTMETHOD, INTEGER, RONLY, ldpPeerTable, | |
1054 | 5, {1, 3, 2, 1, 2}}, | |
1055 | {MPLSLDPPEERPATHVECTORLIMIT, INTEGER, RONLY, ldpPeerTable, | |
1056 | 5, {1, 3, 2, 1, 3}}, | |
1057 | {MPLSLDPPEERTRANSPORTADDRTYPE, INTEGER, RONLY, ldpPeerTable, | |
1058 | 5, {1, 3, 2, 1, 4}}, | |
1059 | {MPLSLDPPEERTRANSPORTADDR, STRING, RONLY, ldpPeerTable, | |
1060 | 5, {1, 3, 2, 1, 5}}, | |
1061 | ||
1062 | /* MPLS LDP mplsLdpSessionTable */ | |
1063 | {MPLSLDPSESSIONSTATELASTCHANGE, TIMESTAMP, RONLY, ldpSessionTable, | |
1064 | 5, {1, 3, 3, 1, 1}}, | |
1065 | {MPLSLDPSESSIONSTATE, INTEGER, RONLY, ldpSessionTable, | |
1066 | 5, {1, 3, 3, 1, 2}}, | |
1067 | {MPLSLDPSESSIONROLE, INTEGER, RONLY, ldpSessionTable, | |
1068 | 5, {1, 3, 3, 1, 3}}, | |
1069 | {MPLSLDPSESSIONPROTOCOLVERSION, UNSIGNED32, RONLY, ldpSessionTable, | |
1070 | 5, {1, 3, 3, 1, 4}}, | |
1071 | {MPLSLDPSESSIONKEEPALIVEHOLDTIMEREM, INTEGER, RONLY, ldpSessionTable, | |
1072 | 5, {1, 3, 3, 1, 5}}, | |
1073 | {MPLSLDPSESSIONKEEPALIVETIME, UNSIGNED32, RONLY, ldpSessionTable, | |
1074 | 5, {1, 3, 3, 1, 6}}, | |
1075 | {MPLSLDPSESSIONMAXPDULENGTH, UNSIGNED32, RONLY, ldpSessionTable, | |
1076 | 5, {1, 3, 3, 1, 7}}, | |
1077 | {MPLSLDPSESSIONDISCONTINUITYTIME, TIMESTAMP, RONLY, ldpSessionTable, | |
1078 | 5, {1, 3, 3, 1, 8}}, | |
1079 | ||
d4d6e7d8 KS |
1080 | /* MPLS LDP mplsLdpSessionStatsTable */ |
1081 | {MPLSLDPSESSIONSTATSUNKNOWNMESTYPEERRORS, COUNTER32, RONLY, | |
1082 | ldpSessionStatsTable, 5, {1, 3, 4, 1, 1}}, | |
1083 | {MPLSLDPSESSIONSTATSUNKNOWNTLVERRORS, COUNTER32, RONLY, | |
1084 | ldpSessionStatsTable, 5, {1, 3, 4, 1, 2}}, | |
1085 | ||
f9a4d683 KS |
1086 | /* MPLS LDP mplsLdpHelloAdjacencyTable. */ |
1087 | {MPLSLDPHELLOADJACENCYINDEX, UNSIGNED32, RONLY, | |
1088 | ldpHelloAdjacencyTable, 6, {1, 3, 5, 1, 1, 1}}, | |
1089 | {MPLSLDPHELLOADJACENCYHOLDTIMEREM, INTEGER, RONLY, | |
1090 | ldpHelloAdjacencyTable, 6, {1, 3, 5, 1, 1, 2}}, | |
1091 | {MPLSLDPHELLOADJACENCYHOLDTIME, UNSIGNED32, RONLY, | |
1092 | ldpHelloAdjacencyTable, 6, {1, 3, 5, 1, 1, 3}}, | |
1093 | {MPLSLDPHELLOADJACENCYTYPE, INTEGER, RONLY, | |
1094 | ldpHelloAdjacencyTable, 6, {1, 3, 5, 1, 1, 4}}, | |
1095 | }; | |
1096 | ||
1097 | static struct variable lde_variables[] = { | |
1098 | }; | |
1099 | ||
1100 | static struct trap_object ldpSessionTrapList[] = { | |
1101 | {5, {1, 3, 3, 1, MPLSLDPSESSIONSTATE}}, | |
1102 | {5, {1, 3, 3, 1, MPLSLDPSESSIONDISCONTINUITYTIME}}, | |
1103 | {5, {1, 3, 4, 1, MPLSLDPSESSIONSTATSUNKNOWNMESTYPEERRORS}}, | |
1104 | {5, {1, 3, 4, 1, MPLSLDPSESSIONSTATSUNKNOWNTLVERRORS}}}; | |
1105 | ||
1106 | /* LDP TRAP. */ | |
1107 | #define LDPINITSESSIONTHRESHOLDEXCEEDED 1 | |
1108 | #define LDPPATHVECTORLIMITMISMATCH 2 | |
1109 | #define LDPSESSIONUP 3 | |
1110 | #define LDPSESSIONDOWN 4 | |
1111 | ||
1112 | static void | |
1113 | ldpTrapSession(struct nbr * nbr, unsigned int sptrap) | |
1114 | { | |
1115 | oid index[sizeof(oid) * (LDP_PEER_ENTRY_MAX_IDX_LEN + 1)]; | |
1116 | ||
1117 | struct in_addr entityLdpId = {.s_addr = 0}; | |
1118 | uint32_t entityIndex = 0; | |
1119 | struct in_addr peerLdpId = {.s_addr = 0}; | |
1120 | ||
1121 | struct ctl_nbr *ctl_nbr = nbr_to_ctl(nbr); | |
1122 | ||
1123 | entityLdpId.s_addr = ldp_rtr_id_get(leconf); | |
1124 | entityIndex = LDP_DEFAULT_ENTITY_INDEX; | |
1125 | peerLdpId = ctl_nbr->id; | |
1126 | ||
9e263221 PR |
1127 | oid_copy_in_addr(index, &entityLdpId); |
1128 | index[4] = 0; | |
1129 | index[5] = 0; | |
1130 | index[6] = entityIndex; | |
1131 | oid_copy_in_addr(&index[7], &peerLdpId); | |
1132 | index[11] = 0; | |
1133 | index[12] = 0; | |
f9a4d683 | 1134 | |
9e263221 | 1135 | index[LDP_PEER_ENTRY_MAX_IDX_LEN] = 0; |
f9a4d683 KS |
1136 | |
1137 | smux_trap(ldpe_variables, array_size(ldpe_variables), ldp_trap_oid, | |
1138 | array_size(ldp_trap_oid), ldp_oid, | |
1139 | sizeof(ldp_oid) / sizeof(oid), index, | |
1140 | LDP_PEER_ENTRY_MAX_IDX_LEN + 1, | |
1141 | ldpSessionTrapList, array_size(ldpSessionTrapList), sptrap); | |
1142 | } | |
1143 | ||
1144 | static void | |
1145 | ldpTrapSessionUp(struct nbr * nbr) | |
1146 | { | |
1147 | ldpTrapSession(nbr, LDPSESSIONUP); | |
1148 | } | |
1149 | ||
1150 | static void | |
1151 | ldpTrapSessionDown(struct nbr * nbr) | |
1152 | { | |
1153 | ldpTrapSession(nbr, LDPSESSIONDOWN); | |
1154 | } | |
1155 | ||
9fb83ab1 | 1156 | static int ldp_snmp_agentx_enabled(void) |
f9a4d683 KS |
1157 | { |
1158 | main_imsg_compose_both(IMSG_AGENTX_ENABLED, NULL, 0); | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int ldp_snmp_nbr_state_change(struct nbr * nbr, int old_state) | |
1164 | { | |
1165 | if (old_state == nbr->state) | |
1166 | return 0; | |
1167 | ||
1168 | if (nbr->state == NBR_STA_OPER) | |
1169 | ldpTrapSessionUp(nbr); | |
1170 | else if (old_state == NBR_STA_OPER) | |
1171 | ldpTrapSessionDown(nbr); | |
1172 | ||
1173 | return 0; | |
1174 | } | |
1175 | ||
cd9d0537 | 1176 | static int ldp_snmp_init(struct event_loop *tm) |
f9a4d683 KS |
1177 | { |
1178 | hook_register(agentx_enabled, ldp_snmp_agentx_enabled); | |
1179 | ||
1180 | smux_init(tm); | |
1181 | ||
1182 | return 0; | |
1183 | } | |
1184 | ||
cd9d0537 | 1185 | static int ldp_snmp_register_mib(struct event_loop *tm) |
f9a4d683 KS |
1186 | { |
1187 | static int registered = 0; | |
1188 | ||
1189 | if (registered) | |
1190 | return 0; | |
1191 | ||
1192 | registered = 1; | |
1193 | ||
1194 | smux_init(tm); | |
1195 | ||
1196 | smux_agentx_enable(); | |
1197 | ||
1198 | if (ldpd_process == PROC_LDE_ENGINE) | |
1199 | REGISTER_MIB("mibII/ldp", lde_variables, variable, ldp_oid); | |
1200 | else if (ldpd_process == PROC_LDP_ENGINE) { | |
1201 | REGISTER_MIB("mibII/ldp", ldpe_variables, variable, ldp_oid); | |
1202 | ||
1203 | hook_register(ldp_nbr_state_change, ldp_snmp_nbr_state_change); | |
1204 | } | |
1205 | ||
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | static int ldp_snmp_module_init(void) | |
1210 | { | |
1211 | if (ldpd_process == PROC_MAIN) | |
1212 | hook_register(frr_late_init, ldp_snmp_init); | |
1213 | else | |
1214 | hook_register(ldp_register_mib, ldp_snmp_register_mib); | |
1215 | ||
1216 | return 0; | |
1217 | } | |
1218 | ||
80413c20 DL |
1219 | FRR_MODULE_SETUP( |
1220 | .name = "ldp_snmp", | |
1221 | .version = FRR_VERSION, | |
1222 | .description = "ldp AgentX SNMP module", | |
1223 | .init = ldp_snmp_module_init, | |
1224 | ); |