1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <fm/fmd_adm.h>
28 #include <fm/fmd_snmp.h>
29 #include <net-snmp/net-snmp-config.h>
30 #include <net-snmp/net-snmp-includes.h>
31 #include <net-snmp/agent/net-snmp-agent-includes.h>
32 #include <pthread.h>
33 #include <stddef.h>
34 #include <errno.h>
35 #include <libuutil.h>
36 #include "sunFM_impl.h"
37 #include "module.h"
38
39 static uu_avl_pool_t *mod_name_avl_pool;
40 static uu_avl_pool_t *mod_index_avl_pool;
41 static uu_avl_t *mod_name_avl;
42 static uu_avl_t *mod_index_avl;
43
44 #define VALID_AVL_STATE (mod_name_avl_pool != NULL && \
45 mod_index_avl_pool != NULL && mod_name_avl != NULL && \
46 mod_index_avl != NULL)
47
48 #define UPDATE_WAIT_MILLIS 10 /* poll interval in milliseconds */
49
50 /*
51 * Update types. Single-index and all are mutually exclusive.
52 */
53 #define UCT_INDEX 0x1
54 #define UCT_ALL 0x2
55 #define UCT_FLAGS 0x3
56
57 #define MODULE_DATA_VALID(d) ((d)->d_valid == valid_stamp)
58
59 /*
60 * Locking rules are straightforward. There is only one updater thread
61 * for each table, and requests for update that are received while
62 * another update is in progress are ignored. The single per-table lock
63 * protects all the data for the table, the valid_stamp and max_index
64 * tags for new data, and - importantly - all the hidden static data
65 * used by the Net-SNMP library. The result return callbacks are always
66 * called in the master agent thread; holding the table lock is
67 * therefore sufficient since only one table's callback can be run at
68 * any one time. Finer-grained locking is possible here but
69 * substantially more difficult because nearly all Net-SNMP functions
70 * are unsafe.
71 *
72 * In practice this is more than adequate, since the purpose of
73 * threading out the update is to prevent excessively time-consuming
74 * data collection from bottlenecking the entire agent, not to improve
75 * result throughput (SNMP is not intended to be used for applications
76 * requiring high throughput anyway). If the agent itself ever becomes
77 * multithreaded, locking requirements become limited to our local
78 * per-table data (the tree, max_index, and valid_stamp), and the
79 * implementation could be revisited for better performance.
80 */
81
82 static ulong_t max_index;
83 static int valid_stamp;
84 static pthread_mutex_t update_lock;
85 static pthread_cond_t update_cv;
86 static volatile enum { US_QUIET, US_NEEDED, US_INPROGRESS } update_status;
87
88 static Netsnmp_Node_Handler sunFmModuleTable_handler;
89
90 static sunFmModule_data_t *
91 key_build(const char *name, const ulong_t index)
92 {
93 static sunFmModule_data_t key;
94
95 key.d_index = index;
96 if (name)
97 (void) strlcpy(key.d_ami_name, name, sizeof (key.d_ami_name));
98 else
99 key.d_ami_name[0] = '\0';
100
101 return (&key);
102 }
103
104 /*
105 * If name is the name of a module we have previously seen and indexed, return
106 * data for it. Otherwise, return NULL. Note that the module may not be
107 * valid; that is, it may have been removed from the fault manager since its
108 * information was last updated.
109 */
110 static sunFmModule_data_t *
111 module_lookup_name(const char *name)
112 {
113 sunFmModule_data_t *key;
114
115 key = key_build(name, 0);
116 return (uu_avl_find(mod_name_avl, key, NULL, NULL));
117 }
118
119 /*
120 * If index corresponds to a module we have previously seen and indexed, return
121 * data for it. Otherwise, return NULL. Note that the module may not be
122 * valid; that is, it may have been removed from the fault manager since its
123 * information was last updated.
124 */
125 static sunFmModule_data_t *
126 module_lookup_index_exact(const ulong_t index)
127 {
128 sunFmModule_data_t *key;
129
130 key = key_build(NULL, index);
131 return (uu_avl_find(mod_index_avl, key, NULL, NULL));
132 }
133
134 /*
135 * If index corresponds to a valid (that is, extant as of latest information
136 * from the fault manager) fmd module, return the data for that module.
137 * Otherwise, return the data for the valid module whose index is as close as
138 * possible to index but not lower. This preserves the lexicographical
139 * ordering required for GETNEXT processing.
140 */
141 static sunFmModule_data_t *
142 module_lookup_index_nextvalid(const ulong_t index)
143 {
144 sunFmModule_data_t *key, *data;
145 uu_avl_index_t idx;
146
147 key = key_build(NULL, index);
148
149 if ((data = uu_avl_find(mod_index_avl, key, NULL, &idx)) != NULL &&
150 MODULE_DATA_VALID(data))
151 return (data);
152
153 data = uu_avl_nearest_next(mod_index_avl, idx);
154
155 while (data != NULL && !MODULE_DATA_VALID(data))
156 data = uu_avl_next(mod_index_avl, data);
157
158 return (data);
159 }
160
161 /*
162 * Possible update the contents of a single module within the cache. This
163 * is our callback from fmd_module_iter.
164 */
165 static int
166 modinfo_update_one(const fmd_adm_modinfo_t *modinfo, void *arg)
167 {
168 const sunFmModule_update_ctx_t *update_ctx =
169 (sunFmModule_update_ctx_t *)arg;
170 sunFmModule_data_t *data = module_lookup_name(modinfo->ami_name);
171
172 /*
173 * An fmd module we haven't seen before. We're obligated to index
174 * it and link it into our cache so that we can find it, but we're
175 * not obligated to fill it in completely unless we're doing a
176 * thorough update or this is the module we were asked for. This
177 * avoids unnecessary iteration and memory manipulation for data
178 * we're not going to return for this request.
179 */
180 if (data == NULL) {
181 uu_avl_index_t idx;
182
183 DEBUGMSGTL((MODNAME_STR, "found new fmd module %s\n",
184 modinfo->ami_name));
185 if ((data = SNMP_MALLOC_TYPEDEF(sunFmModule_data_t)) == NULL) {
186 (void) snmp_log(LOG_ERR, MODNAME_STR ": Out of memory "
187 "for new module data at %s:%d\n", __FILE__,
188 __LINE__);
189 return (1);
190 }
191 /*
192 * We allocate indices sequentially and never reuse them.
193 * This ensures we can always return valid GETNEXT responses
194 * without having to reindex, and it provides the user a
195 * more consistent view of the fault manager.
196 */
197 data->d_index = ++max_index;
198 DEBUGMSGTL((MODNAME_STR, "index %lu is %s@%p\n", data->d_index,
199 modinfo->ami_name, data));
200
201 (void) strlcpy(data->d_ami_name, modinfo->ami_name,
202 sizeof (data->d_ami_name));
203
204 uu_avl_node_init(data, &data->d_name_avl, mod_name_avl_pool);
205 (void) uu_avl_find(mod_name_avl, data, NULL, &idx);
206 uu_avl_insert(mod_name_avl, data, idx);
207
208 uu_avl_node_init(data, &data->d_index_avl, mod_index_avl_pool);
209 (void) uu_avl_find(mod_index_avl, data, NULL, &idx);
210 uu_avl_insert(mod_index_avl, data, idx);
211
212 DEBUGMSGTL((MODNAME_STR, "completed new module %lu/%s@%p\n",
213 data->d_index, data->d_ami_name, data));
214 }
215
216 data->d_valid = valid_stamp;
217
218 DEBUGMSGTL((MODNAME_STR, "timestamp updated for %lu/%s@%p: %d\n",
219 data->d_index, data->d_ami_name, data, data->d_valid));
220
221 if ((update_ctx->uc_type & UCT_ALL) ||
222 update_ctx->uc_index == data->d_index) {
223 (void) strlcpy(data->d_ami_vers, modinfo->ami_vers,
224 sizeof (data->d_ami_vers));
225 (void) strlcpy(data->d_ami_desc, modinfo->ami_desc,
226 sizeof (data->d_ami_desc));
227 data->d_ami_flags = modinfo->ami_flags;
228 }
229
230 return (!(update_ctx->uc_type & UCT_ALL) &&
231 update_ctx->uc_index == data->d_index);
232 }
233
234 /*
235 * Update some or all module data from fmd. If thorough is set, all modules
236 * will be indexed and their data cached. Otherwise, updates will stop once
237 * the module matching index has been updated.
238 *
239 * Returns appropriate SNMP error codes.
240 */
241 static int
242 modinfo_update(sunFmModule_update_ctx_t *update_ctx)
243 {
244 fmd_adm_t *adm;
245
246 ASSERT(update_ctx != NULL);
247 ASSERT((update_ctx->uc_type & (UCT_INDEX|UCT_ALL)) !=
248 (UCT_INDEX|UCT_ALL));
249 ASSERT((update_ctx->uc_type & ~UCT_FLAGS) == 0);
250 ASSERT(VALID_AVL_STATE);
251
252 if ((adm = fmd_adm_open(update_ctx->uc_host, update_ctx->uc_prog,
253 update_ctx->uc_version)) == NULL) {
254 (void) snmp_log(LOG_ERR, MODNAME_STR ": Communication with fmd "
255 "failed: %s\n", strerror(errno));
256 return (SNMP_ERR_RESOURCEUNAVAILABLE);
257 }
258
259 ++valid_stamp;
260 if (fmd_adm_module_iter(adm, modinfo_update_one, update_ctx) != 0) {
261 (void) snmp_log(LOG_ERR, MODNAME_STR ": fmd module information "
262 "update failed: %s\n", fmd_adm_errmsg(adm));
263 fmd_adm_close(adm);
264 return (SNMP_ERR_RESOURCEUNAVAILABLE);
265 }
266
267 DEBUGMSGTL((MODNAME_STR, "module iteration completed\n"));
268
269 fmd_adm_close(adm);
270 return (SNMP_ERR_NOERROR);
271 }
272
273 /*ARGSUSED*/
274 static void
275 update_thread(void *arg)
276 {
277 /*
278 * The current modinfo_update implementation offers minimal savings
279 * for the use of index-only updates; therefore we always do a full
280 * update. If it becomes advantageous to limit updates to a single
281 * index, the contexts can be queued by the handler instead.
282 */
283 sunFmModule_update_ctx_t uc;
284
285 uc.uc_host = NULL;
286 uc.uc_prog = FMD_ADM_PROGRAM;
287 uc.uc_version = FMD_ADM_VERSION;
288
289 uc.uc_index = 0;
290 uc.uc_type = UCT_ALL;
291
292 for (;;) {
293 (void) pthread_mutex_lock(&update_lock);
294 update_status = US_QUIET;
295 while (update_status == US_QUIET)
296 (void) pthread_cond_wait(&update_cv, &update_lock);
297 update_status = US_INPROGRESS;
298 (void) pthread_mutex_unlock(&update_lock);
299 (void) modinfo_update(&uc);
300 }
301 }
302
303 static void
304 request_update(void)
305 {
306 (void) pthread_mutex_lock(&update_lock);
307 if (update_status != US_QUIET) {
308 (void) pthread_mutex_unlock(&update_lock);
309 return;
310 }
311 update_status = US_NEEDED;
312 (void) pthread_cond_signal(&update_cv);
313 (void) pthread_mutex_unlock(&update_lock);
314 }
315
316 /*ARGSUSED*/
317 static int
318 module_compare_name(const void *l, const void *r, void *private)
319 {
320 sunFmModule_data_t *l_data = (sunFmModule_data_t *)l;
321 sunFmModule_data_t *r_data = (sunFmModule_data_t *)r;
322
323 ASSERT(l_data != NULL && r_data != NULL);
324
325 return (strcmp(l_data->d_ami_name, r_data->d_ami_name));
326 }
327
328 /*ARGSUSED*/
329 static int
330 module_compare_index(const void *l, const void *r, void *private)
331 {
332 sunFmModule_data_t *l_data = (sunFmModule_data_t *)l;
333 sunFmModule_data_t *r_data = (sunFmModule_data_t *)r;
334
335 ASSERT(l_data != NULL && r_data != NULL);
336
337 return (l_data->d_index < r_data->d_index ? -1 :
338 l_data->d_index > r_data->d_index ? 1 : 0);
339 }
340
341 int
342 sunFmModuleTable_init(void)
343 {
344 static oid sunFmModuleTable_oid[] = { SUNFMMODULETABLE_OID };
345 netsnmp_table_registration_info *table_info;
346 netsnmp_handler_registration *handler;
347 int err;
348
349 if ((err = pthread_mutex_init(&update_lock, NULL)) != 0) {
350 (void) snmp_log(LOG_ERR, MODNAME_STR ": mutex_init failure: "
351 "%s\n", strerror(err));
352 return (MIB_REGISTRATION_FAILED);
353 }
354 if ((err = pthread_cond_init(&update_cv, NULL)) != 0) {
355 (void) snmp_log(LOG_ERR, MODNAME_STR ": cond_init failure: "
356 "%s\n", strerror(err));
357 return (MIB_REGISTRATION_FAILED);
358 }
359
360 if ((err = pthread_create(NULL, NULL, (void *(*)(void *))update_thread,
361 NULL)) != 0) {
362 (void) snmp_log(LOG_ERR, MODNAME_STR ": error creating update "
363 "thread: %s\n", strerror(err));
364 return (MIB_REGISTRATION_FAILED);
365 }
366
367 if ((table_info =
368 SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info)) == NULL)
369 return (MIB_REGISTRATION_FAILED);
370
371 if ((handler = netsnmp_create_handler_registration("sunFmModuleTable",
372 sunFmModuleTable_handler, sunFmModuleTable_oid,
373 OID_LENGTH(sunFmModuleTable_oid), HANDLER_CAN_RONLY)) == NULL) {
374 SNMP_FREE(table_info);
375 return (MIB_REGISTRATION_FAILED);
376 }
377
378 /*
379 * The Net-SNMP template uses add_indexes here, but that
380 * function is unsafe because it does not check for failure.
381 */
382 if (netsnmp_table_helper_add_index(table_info, ASN_UNSIGNED) == NULL) {
383 SNMP_FREE(table_info);
384 SNMP_FREE(handler);
385 return (MIB_REGISTRATION_FAILED);
386 }
387
388 table_info->min_column = SUNFMMODULE_COLMIN;
389 table_info->max_column = SUNFMMODULE_COLMAX;
390
391 if ((mod_name_avl_pool = uu_avl_pool_create("mod_name",
392 sizeof (sunFmModule_data_t),
393 offsetof(sunFmModule_data_t, d_name_avl), module_compare_name,
394 UU_AVL_DEBUG)) == NULL) {
395 snmp_free_varbind(table_info->indexes);
396 SNMP_FREE(table_info);
397 SNMP_FREE(handler);
398 }
399
400 if ((mod_name_avl = uu_avl_create(mod_name_avl_pool, NULL,
401 UU_AVL_DEBUG)) == NULL) {
402 (void) snmp_log(LOG_ERR, MODNAME_STR ": mod_name_avl creation "
403 "failed: %s\n", uu_strerror(uu_error()));
404 snmp_free_varbind(table_info->indexes);
405 SNMP_FREE(table_info);
406 SNMP_FREE(handler);
407 uu_avl_pool_destroy(mod_name_avl_pool);
408 return (MIB_REGISTRATION_FAILED);
409 }
410
411 if ((mod_index_avl_pool = uu_avl_pool_create("mod_index",
412 sizeof (sunFmModule_data_t),
413 offsetof(sunFmModule_data_t, d_index_avl),
414 module_compare_index, UU_AVL_DEBUG)) == NULL) {
415 snmp_free_varbind(table_info->indexes);
416 SNMP_FREE(table_info);
417 SNMP_FREE(handler);
418 uu_avl_destroy(mod_name_avl);
419 uu_avl_pool_destroy(mod_name_avl_pool);
420 }
421
422 if ((mod_index_avl = uu_avl_create(mod_index_avl_pool, NULL,
423 UU_AVL_DEBUG)) == NULL) {
424 (void) snmp_log(LOG_ERR, MODNAME_STR ": mod_index_avl creation "
425 "failed: %s\n", uu_strerror(uu_error()));
426 snmp_free_varbind(table_info->indexes);
427 SNMP_FREE(table_info);
428 SNMP_FREE(handler);
429 uu_avl_destroy(mod_name_avl);
430 uu_avl_pool_destroy(mod_name_avl_pool);
431 uu_avl_pool_destroy(mod_index_avl_pool);
432 return (MIB_REGISTRATION_FAILED);
433 }
434
435 if ((err = netsnmp_register_table(handler, table_info)) !=
436 MIB_REGISTERED_OK) {
437 snmp_free_varbind(table_info->indexes);
438 SNMP_FREE(table_info);
439 SNMP_FREE(handler);
440 uu_avl_destroy(mod_name_avl);
441 uu_avl_pool_destroy(mod_name_avl_pool);
442 uu_avl_destroy(mod_index_avl);
443 uu_avl_pool_destroy(mod_index_avl_pool);
444 return (err);
445 }
446
447 return (MIB_REGISTERED_OK);
448 }
449
450 /*
451 * These two functions form the core of GET/GETNEXT/GETBULK handling (the
452 * only kind we do). They perform two functions:
453 *
454 * - First, frob the request to set all the index variables to correspond
455 * to the value that's going to be returned. For GET, this is a nop;
456 * for GETNEXT/GETBULK it always requires some work.
457 * - Second, find and return the fmd module information corresponding to
458 * the (possibly updated) indices.
459 *
460 * These should be as fast as possible; they run in the agent thread.
461 */
462 static sunFmModule_data_t *
463 sunFmModuleTable_nextmod(netsnmp_handler_registration *reginfo,
464 netsnmp_table_request_info *table_info)
465 {
466 sunFmModule_data_t *data;
467 netsnmp_variable_list *var;
468 ulong_t index;
469
470 /*
471 * If we have no index, we must make one.
472 */
473 if (table_info->number_indexes < 1) {
474 oid tmpoid[MAX_OID_LEN];
475 index = 1;
476
477 DEBUGMSGTL((MODNAME_STR, "nextmod: no indexes given\n"));
478 var = SNMP_MALLOC_TYPEDEF(netsnmp_variable_list);
479 (void) snmp_set_var_typed_value(var, ASN_UNSIGNED,
480 (uchar_t *)&index, sizeof (index));
481 (void) memcpy(tmpoid, reginfo->rootoid,
482 reginfo->rootoid_len * sizeof (oid));
483 tmpoid[reginfo->rootoid_len] = 1; /* Entry is .1 */
484 tmpoid[reginfo->rootoid_len + 1] = table_info->colnum;
485 if (build_oid(&var->name, &var->name_length, tmpoid,
486 reginfo->rootoid_len + 2, var) != SNMPERR_SUCCESS) {
487 snmp_free_varbind(var);
488 return (NULL);
489 }
490 DEBUGMSGTL((MODNAME_STR, "nextmod: built fake index:\n"));
491 DEBUGMSGVAR((MODNAME_STR, var));
492 DEBUGMSG((MODNAME_STR, "\n"));
493 } else {
494 var = snmp_clone_varbind(table_info->indexes);
495 index = *var->val.integer;
496 DEBUGMSGTL((MODNAME_STR, "nextmod: received index:\n"));
497 DEBUGMSGVAR((MODNAME_STR, var));
498 DEBUGMSG((MODNAME_STR, "\n"));
499 index++;
500 }
501
502 snmp_free_varbind(table_info->indexes);
503 table_info->indexes = NULL;
504 table_info->number_indexes = 0;
505
506 if ((data = module_lookup_index_nextvalid(index)) == NULL) {
507 DEBUGMSGTL((MODNAME_STR, "nextmod: exact match not found for "
508 "index %lu; trying next column\n", index));
509 if (table_info->colnum >=
510 netsnmp_find_table_registration_info(reginfo)->max_column) {
511 snmp_free_varbind(var);
512 DEBUGMSGTL((MODNAME_STR, "nextmod: out of columns\n"));
513 return (NULL);
514 }
515 table_info->colnum++;
516 index = 1;
517
518 data = module_lookup_index_nextvalid(index);
519 }
520
521 if (data == NULL) {
522 DEBUGMSGTL((MODNAME_STR, "nextmod: exact match not found for "
523 "index %lu; stopping\n", index));
524 snmp_free_varbind(var);
525 return (NULL);
526 }
527
528 *var->val.integer = data->d_index;
529 table_info->indexes = var;
530 table_info->number_indexes = 1;
531
532 DEBUGMSGTL((MODNAME_STR, "matching data is %lu/%s@%p\n", data->d_index,
533 data->d_ami_name, data));
534
535 return (data);
536 }
537
538 /*ARGSUSED*/
539 static sunFmModule_data_t *
540 sunFmModuleTable_mod(netsnmp_handler_registration *reginfo,
541 netsnmp_table_request_info *table_info)
542 {
543 ASSERT(table_info->number_indexes == 1);
544
545 return (module_lookup_index_exact(table_info->index_oid[0]));
546 }
547
548 /*ARGSUSED*/
549 static void
550 sunFmModuleTable_return(unsigned int reg, void *arg)
551 {
552 netsnmp_delegated_cache *cache = (netsnmp_delegated_cache *)arg;
553 netsnmp_request_info *request;
554 netsnmp_agent_request_info *reqinfo;
555 netsnmp_handler_registration *reginfo;
556 netsnmp_table_request_info *table_info;
557 sunFmModule_data_t *data;
558 ulong_t modstate;
559
560 ASSERT(netsnmp_handler_check_cache(cache) != NULL);
561
562 (void) pthread_mutex_lock(&update_lock);
563 if (update_status != US_QUIET) {
564 struct timeval tv;
565
566 tv.tv_sec = UPDATE_WAIT_MILLIS / 1000;
567 tv.tv_usec = (UPDATE_WAIT_MILLIS % 1000) * 1000;
568
569 (void) snmp_alarm_register_hr(tv, 0, sunFmModuleTable_return,
570 cache);
571 (void) pthread_mutex_unlock(&update_lock);
572 return;
573 }
574
575 request = cache->requests;
576 reqinfo = cache->reqinfo;
577 reginfo = cache->reginfo;
578
579 table_info = netsnmp_extract_table_info(request);
580 request->delegated = 0;
581
582 ASSERT(table_info->colnum >= SUNFMMODULE_COLMIN);
583 ASSERT(table_info->colnum <= SUNFMMODULE_COLMAX);
584
585 /*
586 * table_info->colnum contains the column number requested.
587 * table_info->indexes contains a linked list of snmp variable
588 * bindings for the indexes of the table. Values in the list
589 * have been set corresponding to the indexes of the
590 * request. We have other guarantees as well:
591 *
592 * - The column number is always within range.
593 * - If we have no index data, table_info->index_oid_len is 0.
594 * - We will never receive requests outside our table nor
595 * those with the first subid anything other than 1 (Entry)
596 * nor those without a column number. This is true even
597 * for GETNEXT requests.
598 */
599
600 switch (reqinfo->mode) {
601 case MODE_GET:
602 if ((data = sunFmModuleTable_mod(reginfo, table_info)) ==
603 NULL) {
604 netsnmp_free_delegated_cache(cache);
605 (void) pthread_mutex_unlock(&update_lock);
606 return;
607 }
608 break;
609 case MODE_GETNEXT:
610 case MODE_GETBULK:
611 if ((data = sunFmModuleTable_nextmod(reginfo, table_info)) ==
612 NULL) {
613 netsnmp_free_delegated_cache(cache);
614 (void) pthread_mutex_unlock(&update_lock);
615 return;
616 }
617 break;
618 default:
619 (void) snmp_log(LOG_ERR, MODNAME_STR ": Unsupported request "
620 "mode %d\n", reqinfo->mode);
621 netsnmp_free_delegated_cache(cache);
622 (void) pthread_mutex_unlock(&update_lock);
623 return;
624 }
625
626 switch (table_info->colnum) {
627 case SUNFMMODULE_COL_NAME:
628 (void) netsnmp_table_build_result(reginfo, request, table_info,
629 ASN_OCTET_STR, (uchar_t *)data->d_ami_name,
630 strlen(data->d_ami_name));
631 break;
632 case SUNFMMODULE_COL_VERSION:
633 (void) netsnmp_table_build_result(reginfo, request, table_info,
634 ASN_OCTET_STR, (uchar_t *)data->d_ami_vers,
635 strlen(data->d_ami_vers));
636 break;
637 case SUNFMMODULE_COL_STATUS:
638 modstate = (data->d_ami_flags & FMD_ADM_MOD_FAILED) ?
639 SUNFMMODULE_STATE_FAILED : SUNFMMODULE_STATE_ACTIVE;
640 (void) netsnmp_table_build_result(reginfo, request, table_info,
641 ASN_INTEGER, (uchar_t *)&modstate,
642 sizeof (modstate));
643 break;
644 case SUNFMMODULE_COL_DESCRIPTION:
645 (void) netsnmp_table_build_result(reginfo, request, table_info,
646 ASN_OCTET_STR, (uchar_t *)data->d_ami_desc,
647 strlen(data->d_ami_desc));
648 break;
649 default:
650 break;
651 }
652 netsnmp_free_delegated_cache(cache);
653 (void) pthread_mutex_unlock(&update_lock);
654 }
655
656 static int
657 sunFmModuleTable_handler(netsnmp_mib_handler *handler,
658 netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo,
659 netsnmp_request_info *requests)
660 {
661 netsnmp_request_info *request;
662 struct timeval tv;
663
664 tv.tv_sec = UPDATE_WAIT_MILLIS / 1000;
665 tv.tv_usec = (UPDATE_WAIT_MILLIS % 1000) * 1000;
666
667 request_update();
668
669 for (request = requests; request; request = request->next) {
670 if (request->processed != 0)
671 continue;
672
673 if (netsnmp_extract_table_info(request) == NULL)
674 continue;
675
676 request->delegated = 1;
677 (void) snmp_alarm_register_hr(tv, 0, sunFmModuleTable_return,
678 (void *) netsnmp_create_delegated_cache(handler, reginfo,
679 reqinfo, request, NULL));
680 }
681
682 return (SNMP_ERR_NOERROR);
683 }