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fe000966 DM |
1 | /* |
2 | Copyright (C) 2010 Proxmox Server Solutions GmbH | |
3 | ||
4 | This program is free software: you can redistribute it and/or modify | |
5 | it under the terms of the GNU Affero General Public License as published by | |
6 | the Free Software Foundation, either version 3 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU Affero General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Affero General Public License | |
15 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | ||
17 | Author: Dietmar Maurer <dietmar@proxmox.com> | |
18 | ||
19 | */ | |
20 | ||
21 | #define G_LOG_DOMAIN "status" | |
22 | ||
23 | #ifdef HAVE_CONFIG_H | |
24 | #include <config.h> | |
25 | #endif /* HAVE_CONFIG_H */ | |
26 | ||
27 | #include <stdio.h> | |
28 | #include <stdint.h> | |
29 | #include <string.h> | |
30 | #include <errno.h> | |
31 | #include <glib.h> | |
32 | #include <sys/syslog.h> | |
33 | #include <rrd.h> | |
34 | #include <rrd_client.h> | |
35 | #include <time.h> | |
36 | ||
37 | #include "cfs-utils.h" | |
38 | #include "status.h" | |
39 | #include "logger.h" | |
40 | ||
41 | #define KVSTORE_CPG_GROUP_NAME "pve_kvstore_v1" | |
42 | ||
43 | typedef enum { | |
44 | KVSTORE_MESSAGE_UPDATE = 1, | |
45 | KVSTORE_MESSAGE_UPDATE_COMPLETE = 2, | |
46 | KVSTORE_MESSAGE_LOG = 3, | |
47 | } kvstore_message_t; | |
48 | ||
49 | static uint32_t vminfo_version_counter; | |
50 | ||
51 | typedef struct { | |
52 | uint32_t vmid; | |
53 | char *nodename; | |
54 | int vmtype; | |
55 | uint32_t version; | |
56 | } vminfo_t; | |
57 | ||
58 | typedef struct { | |
59 | char *key; | |
60 | gpointer data; | |
61 | size_t len; | |
62 | uint32_t version; | |
63 | } kventry_t; | |
64 | ||
65 | typedef struct { | |
66 | char *key; | |
67 | gpointer data; | |
68 | size_t len; | |
69 | uint32_t time; | |
70 | } rrdentry_t; | |
71 | ||
72 | typedef struct { | |
73 | char *path; | |
74 | uint32_t version; | |
75 | } memdb_change_t; | |
76 | ||
77 | static memdb_change_t memdb_change_array[] = { | |
2113d031 DM |
78 | { .path = "corosync.conf" }, |
79 | { .path = "corosync.conf.new" }, | |
fe000966 DM |
80 | { .path = "storage.cfg" }, |
81 | { .path = "user.cfg" }, | |
82 | { .path = "domains.cfg" }, | |
83 | { .path = "priv/shadow.cfg" }, | |
84 | { .path = "datacenter.cfg" }, | |
e1735a61 | 85 | { .path = "vzdump.cron" }, |
5a5417e6 DM |
86 | { .path = "ha/crm_commands" }, |
87 | { .path = "ha/manager_status" }, | |
88 | { .path = "ha/resources.cfg" }, | |
89 | { .path = "ha/groups.cfg" }, | |
e9af3eb7 | 90 | { .path = "ha/fence.cfg" }, |
9d4f69ff | 91 | { .path = "status.cfg" }, |
f6de131a | 92 | { .path = "replication.cfg" }, |
fe000966 DM |
93 | }; |
94 | ||
89fde9ac | 95 | static GMutex mutex; |
fe000966 DM |
96 | |
97 | typedef struct { | |
98 | time_t start_time; | |
99 | ||
100 | uint32_t quorate; | |
101 | ||
102 | cfs_clinfo_t *clinfo; | |
103 | uint32_t clinfo_version; | |
104 | ||
105 | GHashTable *vmlist; | |
106 | uint32_t vmlist_version; | |
107 | ||
108 | dfsm_t *kvstore; | |
109 | GHashTable *kvhash; | |
110 | GHashTable *rrdhash; | |
111 | GHashTable *iphash; | |
112 | ||
113 | GHashTable *memdb_changes; | |
114 | ||
115 | clusterlog_t *clusterlog; | |
116 | } cfs_status_t; | |
117 | ||
118 | static cfs_status_t cfs_status; | |
119 | ||
120 | struct cfs_clnode { | |
121 | char *name; | |
122 | uint32_t nodeid; | |
123 | uint32_t votes; | |
124 | gboolean online; | |
125 | GHashTable *kvhash; | |
126 | }; | |
127 | ||
128 | struct cfs_clinfo { | |
129 | char *cluster_name; | |
130 | uint32_t cman_version; | |
131 | ||
132 | GHashTable *nodes_byid; | |
133 | GHashTable *nodes_byname; | |
134 | }; | |
135 | ||
136 | static guint | |
137 | g_int32_hash (gconstpointer v) | |
138 | { | |
139 | return *(const uint32_t *) v; | |
140 | } | |
141 | ||
142 | static gboolean | |
143 | g_int32_equal (gconstpointer v1, | |
144 | gconstpointer v2) | |
145 | { | |
146 | return *((const uint32_t*) v1) == *((const uint32_t*) v2); | |
147 | } | |
148 | ||
149 | static void vminfo_free(vminfo_t *vminfo) | |
150 | { | |
151 | g_return_if_fail(vminfo != NULL); | |
152 | ||
153 | if (vminfo->nodename) | |
154 | g_free(vminfo->nodename); | |
155 | ||
156 | ||
157 | g_free(vminfo); | |
158 | } | |
159 | ||
160 | void cfs_clnode_destroy( | |
161 | cfs_clnode_t *clnode) | |
162 | { | |
163 | g_return_if_fail(clnode != NULL); | |
164 | ||
165 | if (clnode->kvhash) | |
166 | g_hash_table_destroy(clnode->kvhash); | |
167 | ||
168 | if (clnode->name) | |
169 | g_free(clnode->name); | |
170 | ||
171 | g_free(clnode); | |
172 | } | |
173 | ||
174 | cfs_clnode_t *cfs_clnode_new( | |
175 | const char *name, | |
176 | uint32_t nodeid, | |
177 | uint32_t votes) | |
178 | { | |
179 | g_return_val_if_fail(name != NULL, NULL); | |
180 | ||
181 | cfs_clnode_t *clnode = g_new0(cfs_clnode_t, 1); | |
182 | if (!clnode) | |
183 | return NULL; | |
184 | ||
185 | clnode->name = g_strdup(name); | |
186 | clnode->nodeid = nodeid; | |
187 | clnode->votes = votes; | |
188 | ||
189 | return clnode; | |
190 | } | |
191 | ||
192 | gboolean cfs_clinfo_destroy( | |
193 | cfs_clinfo_t *clinfo) | |
194 | { | |
195 | g_return_val_if_fail(clinfo != NULL, FALSE); | |
196 | ||
197 | if (clinfo->cluster_name) | |
198 | g_free(clinfo->cluster_name); | |
199 | ||
200 | if (clinfo->nodes_byname) | |
201 | g_hash_table_destroy(clinfo->nodes_byname); | |
202 | ||
203 | if (clinfo->nodes_byid) | |
204 | g_hash_table_destroy(clinfo->nodes_byid); | |
205 | ||
206 | g_free(clinfo); | |
207 | ||
208 | return TRUE; | |
209 | } | |
210 | ||
211 | cfs_clinfo_t *cfs_clinfo_new( | |
212 | const char *cluster_name, | |
213 | uint32_t cman_version) | |
214 | { | |
215 | g_return_val_if_fail(cluster_name != NULL, NULL); | |
216 | ||
217 | cfs_clinfo_t *clinfo = g_new0(cfs_clinfo_t, 1); | |
218 | if (!clinfo) | |
219 | return NULL; | |
220 | ||
221 | clinfo->cluster_name = g_strdup(cluster_name); | |
222 | clinfo->cman_version = cman_version; | |
223 | ||
224 | if (!(clinfo->nodes_byid = g_hash_table_new_full( | |
225 | g_int32_hash, g_int32_equal, NULL, | |
226 | (GDestroyNotify)cfs_clnode_destroy))) | |
227 | goto fail; | |
228 | ||
229 | if (!(clinfo->nodes_byname = g_hash_table_new(g_str_hash, g_str_equal))) | |
230 | goto fail; | |
231 | ||
232 | return clinfo; | |
233 | ||
234 | fail: | |
235 | cfs_clinfo_destroy(clinfo); | |
236 | ||
237 | return NULL; | |
238 | } | |
239 | ||
240 | gboolean cfs_clinfo_add_node( | |
241 | cfs_clinfo_t *clinfo, | |
242 | cfs_clnode_t *clnode) | |
243 | { | |
244 | g_return_val_if_fail(clinfo != NULL, FALSE); | |
245 | g_return_val_if_fail(clnode != NULL, FALSE); | |
246 | ||
247 | g_hash_table_replace(clinfo->nodes_byid, &clnode->nodeid, clnode); | |
248 | g_hash_table_replace(clinfo->nodes_byname, clnode->name, clnode); | |
249 | ||
250 | return TRUE; | |
251 | } | |
252 | ||
253 | int | |
254 | cfs_create_memberlist_msg( | |
255 | GString *str) | |
256 | { | |
257 | g_return_val_if_fail(str != NULL, -EINVAL); | |
258 | ||
89fde9ac | 259 | g_mutex_lock (&mutex); |
fe000966 DM |
260 | |
261 | g_string_append_printf(str,"{\n"); | |
262 | ||
263 | guint nodecount = 0; | |
264 | ||
265 | cfs_clinfo_t *clinfo = cfs_status.clinfo; | |
266 | ||
267 | if (clinfo && clinfo->nodes_byid) | |
268 | nodecount = g_hash_table_size(clinfo->nodes_byid); | |
269 | ||
270 | if (nodecount) { | |
271 | g_string_append_printf(str, "\"nodename\": \"%s\",\n", cfs.nodename); | |
272 | g_string_append_printf(str, "\"version\": %u,\n", cfs_status.clinfo_version); | |
273 | ||
274 | g_string_append_printf(str, "\"cluster\": { "); | |
275 | g_string_append_printf(str, "\"name\": \"%s\", \"version\": %d, " | |
276 | "\"nodes\": %d, \"quorate\": %d ", | |
277 | clinfo->cluster_name, clinfo->cman_version, | |
278 | nodecount, cfs_status.quorate); | |
279 | ||
280 | g_string_append_printf(str,"},\n"); | |
281 | g_string_append_printf(str,"\"nodelist\": {\n"); | |
282 | ||
283 | GHashTable *ht = clinfo->nodes_byid; | |
284 | GHashTableIter iter; | |
285 | gpointer key, value; | |
286 | ||
287 | g_hash_table_iter_init (&iter, ht); | |
288 | ||
289 | int i = 0; | |
290 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
291 | cfs_clnode_t *node = (cfs_clnode_t *)value; | |
292 | if (i) g_string_append_printf(str, ",\n"); | |
293 | i++; | |
294 | ||
295 | g_string_append_printf(str, " \"%s\": { \"id\": %d, \"online\": %d", | |
296 | node->name, node->nodeid, node->online); | |
297 | ||
298 | ||
299 | char *ip = (char *)g_hash_table_lookup(cfs_status.iphash, node->name); | |
300 | if (ip) { | |
301 | g_string_append_printf(str, ", \"ip\": \"%s\"", ip); | |
302 | } | |
303 | ||
304 | g_string_append_printf(str, "}"); | |
305 | ||
306 | } | |
307 | g_string_append_printf(str,"\n }\n"); | |
308 | } else { | |
309 | g_string_append_printf(str, "\"nodename\": \"%s\",\n", cfs.nodename); | |
310 | g_string_append_printf(str, "\"version\": %u\n", cfs_status.clinfo_version); | |
311 | } | |
312 | ||
313 | g_string_append_printf(str,"}\n"); | |
314 | ||
89fde9ac | 315 | g_mutex_unlock (&mutex); |
fe000966 DM |
316 | |
317 | return 0; | |
318 | } | |
319 | ||
320 | static void | |
321 | kventry_free(kventry_t *entry) | |
322 | { | |
323 | g_return_if_fail(entry != NULL); | |
324 | ||
325 | g_free(entry->key); | |
326 | g_free(entry->data); | |
327 | g_free(entry); | |
328 | } | |
329 | ||
330 | static GHashTable * | |
331 | kventry_hash_new(void) | |
332 | { | |
333 | return g_hash_table_new_full(g_str_hash, g_str_equal, NULL, | |
334 | (GDestroyNotify)kventry_free); | |
335 | } | |
336 | ||
337 | static void | |
338 | rrdentry_free(rrdentry_t *entry) | |
339 | { | |
340 | g_return_if_fail(entry != NULL); | |
341 | ||
342 | g_free(entry->key); | |
343 | g_free(entry->data); | |
344 | g_free(entry); | |
345 | } | |
346 | ||
347 | static GHashTable * | |
348 | rrdentry_hash_new(void) | |
349 | { | |
350 | return g_hash_table_new_full(g_str_hash, g_str_equal, NULL, | |
351 | (GDestroyNotify)rrdentry_free); | |
352 | } | |
353 | ||
354 | void | |
355 | cfs_cluster_log_dump(GString *str, const char *user, guint max_entries) | |
356 | { | |
357 | clusterlog_dump(cfs_status.clusterlog, str, user, max_entries); | |
358 | } | |
359 | ||
360 | void | |
361 | cfs_cluster_log(clog_entry_t *entry) | |
362 | { | |
363 | g_return_if_fail(entry != NULL); | |
364 | ||
365 | clusterlog_insert(cfs_status.clusterlog, entry); | |
366 | ||
367 | if (cfs_status.kvstore) { | |
368 | struct iovec iov[1]; | |
369 | iov[0].iov_base = (char *)entry; | |
370 | iov[0].iov_len = clog_entry_size(entry); | |
371 | ||
af2e9dd4 DM |
372 | if (dfsm_is_initialized(cfs_status.kvstore)) |
373 | dfsm_send_message(cfs_status.kvstore, KVSTORE_MESSAGE_LOG, iov, 1); | |
fe000966 DM |
374 | } |
375 | } | |
376 | ||
377 | void cfs_status_init(void) | |
378 | { | |
89fde9ac | 379 | g_mutex_lock (&mutex); |
fe000966 DM |
380 | |
381 | cfs_status.start_time = time(NULL); | |
382 | ||
383 | cfs_status.vmlist = vmlist_hash_new(); | |
384 | ||
385 | cfs_status.kvhash = kventry_hash_new(); | |
386 | ||
387 | cfs_status.rrdhash = rrdentry_hash_new(); | |
388 | ||
389 | cfs_status.iphash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free); | |
390 | ||
391 | cfs_status.memdb_changes = g_hash_table_new(g_str_hash, g_str_equal); | |
392 | ||
393 | for (int i = 0; i < G_N_ELEMENTS(memdb_change_array); i++) { | |
394 | g_hash_table_replace(cfs_status.memdb_changes, | |
395 | memdb_change_array[i].path, | |
396 | &memdb_change_array[i]); | |
397 | } | |
398 | ||
399 | cfs_status.clusterlog = clusterlog_new(); | |
400 | ||
401 | // fixme: | |
402 | clusterlog_add(cfs_status.clusterlog, "root", "cluster", getpid(), | |
403 | LOG_INFO, "starting cluster log"); | |
404 | ||
89fde9ac | 405 | g_mutex_unlock (&mutex); |
fe000966 DM |
406 | } |
407 | ||
408 | void cfs_status_cleanup(void) | |
409 | { | |
89fde9ac | 410 | g_mutex_lock (&mutex); |
fe000966 DM |
411 | |
412 | cfs_status.clinfo_version++; | |
413 | ||
414 | if (cfs_status.clinfo) { | |
415 | cfs_clinfo_destroy(cfs_status.clinfo); | |
416 | cfs_status.clinfo = NULL; | |
417 | } | |
418 | ||
419 | if (cfs_status.vmlist) { | |
420 | g_hash_table_destroy(cfs_status.vmlist); | |
421 | cfs_status.vmlist = NULL; | |
422 | } | |
423 | ||
424 | if (cfs_status.kvhash) { | |
425 | g_hash_table_destroy(cfs_status.kvhash); | |
426 | cfs_status.kvhash = NULL; | |
427 | } | |
428 | ||
429 | if (cfs_status.rrdhash) { | |
430 | g_hash_table_destroy(cfs_status.rrdhash); | |
431 | cfs_status.rrdhash = NULL; | |
432 | } | |
433 | ||
434 | if (cfs_status.iphash) { | |
435 | g_hash_table_destroy(cfs_status.iphash); | |
436 | cfs_status.iphash = NULL; | |
437 | } | |
438 | ||
439 | if (cfs_status.clusterlog) | |
440 | clusterlog_destroy(cfs_status.clusterlog); | |
441 | ||
89fde9ac | 442 | g_mutex_unlock (&mutex); |
fe000966 DM |
443 | } |
444 | ||
445 | void cfs_status_set_clinfo( | |
446 | cfs_clinfo_t *clinfo) | |
447 | { | |
448 | g_return_if_fail(clinfo != NULL); | |
449 | ||
89fde9ac | 450 | g_mutex_lock (&mutex); |
fe000966 DM |
451 | |
452 | cfs_status.clinfo_version++; | |
453 | ||
454 | cfs_clinfo_t *old = cfs_status.clinfo; | |
455 | ||
456 | cfs_status.clinfo = clinfo; | |
457 | ||
458 | cfs_message("update cluster info (cluster name %s, version = %d)", | |
459 | clinfo->cluster_name, clinfo->cman_version); | |
460 | ||
461 | ||
462 | if (old && old->nodes_byid && clinfo->nodes_byid) { | |
463 | /* copy kvstore */ | |
464 | GHashTable *ht = clinfo->nodes_byid; | |
465 | GHashTableIter iter; | |
466 | gpointer key, value; | |
467 | ||
468 | g_hash_table_iter_init (&iter, ht); | |
469 | ||
470 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
471 | cfs_clnode_t *node = (cfs_clnode_t *)value; | |
472 | cfs_clnode_t *oldnode; | |
469d3acb | 473 | if ((oldnode = g_hash_table_lookup(old->nodes_byid, key))) { |
fe000966 DM |
474 | node->online = oldnode->online; |
475 | node->kvhash = oldnode->kvhash; | |
476 | oldnode->kvhash = NULL; | |
477 | } | |
478 | } | |
479 | ||
480 | } | |
481 | ||
482 | if (old) | |
483 | cfs_clinfo_destroy(old); | |
484 | ||
485 | ||
89fde9ac | 486 | g_mutex_unlock (&mutex); |
fe000966 DM |
487 | } |
488 | ||
489 | static void | |
490 | dump_kvstore_versions( | |
491 | GString *str, | |
492 | GHashTable *kvhash, | |
493 | const char *nodename) | |
494 | { | |
495 | g_return_if_fail(kvhash != NULL); | |
496 | g_return_if_fail(str != NULL); | |
497 | g_return_if_fail(nodename != NULL); | |
498 | ||
499 | GHashTable *ht = kvhash; | |
500 | GHashTableIter iter; | |
501 | gpointer key, value; | |
502 | ||
503 | g_string_append_printf(str, "\"%s\": {\n", nodename); | |
504 | ||
505 | g_hash_table_iter_init (&iter, ht); | |
506 | ||
507 | int i = 0; | |
508 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
509 | kventry_t *entry = (kventry_t *)value; | |
510 | if (i) g_string_append_printf(str, ",\n"); | |
511 | i++; | |
512 | g_string_append_printf(str,"\"%s\": %u", entry->key, entry->version); | |
513 | } | |
514 | ||
515 | g_string_append_printf(str, "}\n"); | |
516 | } | |
517 | ||
518 | int | |
519 | cfs_create_version_msg(GString *str) | |
520 | { | |
521 | g_return_val_if_fail(str != NULL, -EINVAL); | |
522 | ||
89fde9ac | 523 | g_mutex_lock (&mutex); |
fe000966 DM |
524 | |
525 | g_string_append_printf(str,"{\n"); | |
526 | ||
527 | g_string_append_printf(str, "\"starttime\": %lu,\n", (unsigned long)cfs_status.start_time); | |
528 | ||
529 | g_string_append_printf(str, "\"clinfo\": %u,\n", cfs_status.clinfo_version); | |
530 | ||
531 | g_string_append_printf(str, "\"vmlist\": %u,\n", cfs_status.vmlist_version); | |
532 | ||
533 | for (int i = 0; i < G_N_ELEMENTS(memdb_change_array); i++) { | |
534 | g_string_append_printf(str, "\"%s\": %u,\n", | |
535 | memdb_change_array[i].path, | |
536 | memdb_change_array[i].version); | |
537 | } | |
538 | ||
539 | g_string_append_printf(str, "\"kvstore\": {\n"); | |
540 | ||
541 | dump_kvstore_versions(str, cfs_status.kvhash, cfs.nodename); | |
542 | ||
543 | cfs_clinfo_t *clinfo = cfs_status.clinfo; | |
544 | ||
545 | if (clinfo && clinfo->nodes_byid) { | |
546 | GHashTable *ht = clinfo->nodes_byid; | |
547 | GHashTableIter iter; | |
548 | gpointer key, value; | |
549 | ||
550 | g_hash_table_iter_init (&iter, ht); | |
551 | ||
552 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
553 | cfs_clnode_t *node = (cfs_clnode_t *)value; | |
554 | if (!node->kvhash) | |
555 | continue; | |
556 | g_string_append_printf(str, ",\n"); | |
557 | dump_kvstore_versions(str, node->kvhash, node->name); | |
558 | } | |
559 | } | |
560 | ||
561 | g_string_append_printf(str,"}\n"); | |
562 | ||
563 | g_string_append_printf(str,"}\n"); | |
564 | ||
89fde9ac | 565 | g_mutex_unlock (&mutex); |
fe000966 DM |
566 | |
567 | return 0; | |
568 | } | |
569 | ||
570 | GHashTable * | |
571 | vmlist_hash_new(void) | |
572 | { | |
573 | return g_hash_table_new_full(g_int_hash, g_int_equal, NULL, | |
574 | (GDestroyNotify)vminfo_free); | |
575 | } | |
576 | ||
577 | gboolean | |
578 | vmlist_hash_insert_vm( | |
579 | GHashTable *vmlist, | |
580 | int vmtype, | |
581 | guint32 vmid, | |
582 | const char *nodename, | |
583 | gboolean replace) | |
584 | { | |
585 | g_return_val_if_fail(vmlist != NULL, FALSE); | |
586 | g_return_val_if_fail(nodename != NULL, FALSE); | |
587 | g_return_val_if_fail(vmid != 0, FALSE); | |
7f66b436 DM |
588 | g_return_val_if_fail(vmtype == VMTYPE_QEMU || vmtype == VMTYPE_OPENVZ || |
589 | vmtype == VMTYPE_LXC, FALSE); | |
fe000966 DM |
590 | |
591 | if (!replace && g_hash_table_lookup(vmlist, &vmid)) { | |
592 | cfs_critical("detected duplicate VMID %d", vmid); | |
593 | return FALSE; | |
594 | } | |
595 | ||
596 | vminfo_t *vminfo = g_new0(vminfo_t, 1); | |
597 | ||
598 | vminfo->vmid = vmid; | |
599 | vminfo->vmtype = vmtype; | |
600 | vminfo->nodename = g_strdup(nodename); | |
601 | ||
602 | vminfo->version = ++vminfo_version_counter; | |
603 | ||
604 | g_hash_table_replace(vmlist, &vminfo->vmid, vminfo); | |
605 | ||
606 | return TRUE; | |
607 | } | |
608 | ||
609 | void | |
610 | vmlist_register_vm( | |
611 | int vmtype, | |
612 | guint32 vmid, | |
613 | const char *nodename) | |
614 | { | |
615 | g_return_if_fail(cfs_status.vmlist != NULL); | |
616 | g_return_if_fail(nodename != NULL); | |
617 | g_return_if_fail(vmid != 0); | |
7f66b436 DM |
618 | g_return_if_fail(vmtype == VMTYPE_QEMU || vmtype == VMTYPE_OPENVZ || |
619 | vmtype == VMTYPE_LXC); | |
fe000966 DM |
620 | |
621 | cfs_debug("vmlist_register_vm: %s/%u %d", nodename, vmid, vmtype); | |
622 | ||
89fde9ac | 623 | g_mutex_lock (&mutex); |
fe000966 DM |
624 | |
625 | cfs_status.vmlist_version++; | |
626 | ||
627 | vmlist_hash_insert_vm(cfs_status.vmlist, vmtype, vmid, nodename, TRUE); | |
628 | ||
89fde9ac | 629 | g_mutex_unlock (&mutex); |
fe000966 DM |
630 | } |
631 | ||
632 | gboolean | |
633 | vmlist_different_vm_exists( | |
634 | int vmtype, | |
635 | guint32 vmid, | |
636 | const char *nodename) | |
637 | { | |
638 | g_return_val_if_fail(cfs_status.vmlist != NULL, FALSE); | |
639 | g_return_val_if_fail(vmid != 0, FALSE); | |
640 | ||
641 | gboolean res = FALSE; | |
642 | ||
89fde9ac | 643 | g_mutex_lock (&mutex); |
fe000966 DM |
644 | |
645 | vminfo_t *vminfo; | |
646 | if ((vminfo = (vminfo_t *)g_hash_table_lookup(cfs_status.vmlist, &vmid))) { | |
647 | if (!(vminfo->vmtype == vmtype && strcmp(vminfo->nodename, nodename) == 0)) | |
648 | res = TRUE; | |
649 | } | |
89fde9ac | 650 | g_mutex_unlock (&mutex); |
fe000966 DM |
651 | |
652 | return res; | |
653 | } | |
654 | ||
655 | gboolean | |
656 | vmlist_vm_exists( | |
657 | guint32 vmid) | |
658 | { | |
659 | g_return_val_if_fail(cfs_status.vmlist != NULL, FALSE); | |
660 | g_return_val_if_fail(vmid != 0, FALSE); | |
661 | ||
89fde9ac | 662 | g_mutex_lock (&mutex); |
fe000966 DM |
663 | |
664 | gpointer res = g_hash_table_lookup(cfs_status.vmlist, &vmid); | |
665 | ||
89fde9ac | 666 | g_mutex_unlock (&mutex); |
fe000966 DM |
667 | |
668 | return res != NULL; | |
669 | } | |
670 | ||
671 | void | |
672 | vmlist_delete_vm( | |
673 | guint32 vmid) | |
674 | { | |
675 | g_return_if_fail(cfs_status.vmlist != NULL); | |
676 | g_return_if_fail(vmid != 0); | |
677 | ||
89fde9ac | 678 | g_mutex_lock (&mutex); |
fe000966 DM |
679 | |
680 | cfs_status.vmlist_version++; | |
681 | ||
682 | g_hash_table_remove(cfs_status.vmlist, &vmid); | |
683 | ||
89fde9ac | 684 | g_mutex_unlock (&mutex); |
fe000966 DM |
685 | } |
686 | ||
687 | void cfs_status_set_vmlist( | |
688 | GHashTable *vmlist) | |
689 | { | |
690 | g_return_if_fail(vmlist != NULL); | |
691 | ||
89fde9ac | 692 | g_mutex_lock (&mutex); |
fe000966 DM |
693 | |
694 | cfs_status.vmlist_version++; | |
695 | ||
696 | if (cfs_status.vmlist) | |
697 | g_hash_table_destroy(cfs_status.vmlist); | |
698 | ||
699 | cfs_status.vmlist = vmlist; | |
700 | ||
89fde9ac | 701 | g_mutex_unlock (&mutex); |
fe000966 DM |
702 | } |
703 | ||
704 | int | |
705 | cfs_create_vmlist_msg(GString *str) | |
706 | { | |
707 | g_return_val_if_fail(cfs_status.vmlist != NULL, -EINVAL); | |
708 | g_return_val_if_fail(str != NULL, -EINVAL); | |
709 | ||
89fde9ac | 710 | g_mutex_lock (&mutex); |
fe000966 DM |
711 | |
712 | g_string_append_printf(str,"{\n"); | |
713 | ||
714 | GHashTable *ht = cfs_status.vmlist; | |
715 | ||
716 | guint count = g_hash_table_size(ht); | |
717 | ||
718 | if (!count) { | |
719 | g_string_append_printf(str,"\"version\": %u\n", cfs_status.vmlist_version); | |
720 | } else { | |
721 | g_string_append_printf(str,"\"version\": %u,\n", cfs_status.vmlist_version); | |
722 | ||
723 | g_string_append_printf(str,"\"ids\": {\n"); | |
724 | ||
725 | GHashTableIter iter; | |
726 | gpointer key, value; | |
727 | ||
728 | g_hash_table_iter_init (&iter, ht); | |
729 | ||
730 | int first = 1; | |
731 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
732 | vminfo_t *vminfo = (vminfo_t *)value; | |
733 | char *type; | |
734 | if (vminfo->vmtype == VMTYPE_QEMU) { | |
735 | type = "qemu"; | |
736 | } else if (vminfo->vmtype == VMTYPE_OPENVZ) { | |
737 | type = "openvz"; | |
7f66b436 DM |
738 | } else if (vminfo->vmtype == VMTYPE_LXC) { |
739 | type = "lxc"; | |
fe000966 DM |
740 | } else { |
741 | type = "unknown"; | |
742 | } | |
743 | ||
744 | if (!first) | |
745 | g_string_append_printf(str, ",\n"); | |
746 | first = 0; | |
747 | ||
748 | g_string_append_printf(str,"\"%u\": { \"node\": \"%s\", \"type\": \"%s\", \"version\": %u }", | |
749 | vminfo->vmid, vminfo->nodename, type, vminfo->version); | |
750 | } | |
751 | ||
752 | g_string_append_printf(str,"}\n"); | |
753 | } | |
754 | g_string_append_printf(str,"\n}\n"); | |
755 | ||
89fde9ac | 756 | g_mutex_unlock (&mutex); |
fe000966 DM |
757 | |
758 | return 0; | |
759 | } | |
760 | ||
761 | void | |
762 | record_memdb_change(const char *path) | |
763 | { | |
764 | g_return_if_fail(cfs_status.memdb_changes != 0); | |
765 | ||
766 | memdb_change_t *ce; | |
767 | ||
768 | if ((ce = (memdb_change_t *)g_hash_table_lookup(cfs_status.memdb_changes, path))) { | |
769 | ce->version++; | |
770 | } | |
771 | } | |
772 | ||
773 | void | |
774 | record_memdb_reload(void) | |
775 | { | |
776 | for (int i = 0; i < G_N_ELEMENTS(memdb_change_array); i++) { | |
777 | memdb_change_array[i].version++; | |
778 | } | |
779 | } | |
780 | ||
781 | static gboolean | |
782 | kventry_hash_set( | |
783 | GHashTable *kvhash, | |
784 | const char *key, | |
785 | gconstpointer data, | |
786 | size_t len) | |
787 | { | |
788 | g_return_val_if_fail(kvhash != NULL, FALSE); | |
789 | g_return_val_if_fail(key != NULL, FALSE); | |
790 | g_return_val_if_fail(data != NULL, FALSE); | |
791 | ||
792 | kventry_t *entry; | |
793 | if ((entry = (kventry_t *)g_hash_table_lookup(kvhash, key))) { | |
794 | g_free(entry->data); | |
795 | entry->data = g_memdup(data, len); | |
796 | entry->len = len; | |
797 | entry->version++; | |
798 | } else { | |
799 | kventry_t *entry = g_new0(kventry_t, 1); | |
800 | ||
801 | entry->key = g_strdup(key); | |
802 | entry->data = g_memdup(data, len); | |
803 | entry->len = len; | |
804 | ||
805 | g_hash_table_replace(kvhash, entry->key, entry); | |
806 | } | |
807 | ||
808 | return TRUE; | |
809 | } | |
810 | ||
811 | static const char *rrd_def_node[] = { | |
812 | "DS:loadavg:GAUGE:120:0:U", | |
813 | "DS:maxcpu:GAUGE:120:0:U", | |
814 | "DS:cpu:GAUGE:120:0:U", | |
815 | "DS:iowait:GAUGE:120:0:U", | |
816 | "DS:memtotal:GAUGE:120:0:U", | |
817 | "DS:memused:GAUGE:120:0:U", | |
818 | "DS:swaptotal:GAUGE:120:0:U", | |
819 | "DS:swapused:GAUGE:120:0:U", | |
820 | "DS:roottotal:GAUGE:120:0:U", | |
821 | "DS:rootused:GAUGE:120:0:U", | |
764296f1 DM |
822 | "DS:netin:DERIVE:120:0:U", |
823 | "DS:netout:DERIVE:120:0:U", | |
fe000966 DM |
824 | |
825 | "RRA:AVERAGE:0.5:1:70", // 1 min avg - one hour | |
826 | "RRA:AVERAGE:0.5:30:70", // 30 min avg - one day | |
827 | "RRA:AVERAGE:0.5:180:70", // 3 hour avg - one week | |
828 | "RRA:AVERAGE:0.5:720:70", // 12 hour avg - one month | |
829 | "RRA:AVERAGE:0.5:10080:70", // 7 day avg - ony year | |
830 | ||
831 | "RRA:MAX:0.5:1:70", // 1 min max - one hour | |
832 | "RRA:MAX:0.5:30:70", // 30 min max - one day | |
833 | "RRA:MAX:0.5:180:70", // 3 hour max - one week | |
834 | "RRA:MAX:0.5:720:70", // 12 hour max - one month | |
835 | "RRA:MAX:0.5:10080:70", // 7 day max - ony year | |
836 | NULL, | |
837 | }; | |
838 | ||
839 | static const char *rrd_def_vm[] = { | |
840 | "DS:maxcpu:GAUGE:120:0:U", | |
841 | "DS:cpu:GAUGE:120:0:U", | |
842 | "DS:maxmem:GAUGE:120:0:U", | |
843 | "DS:mem:GAUGE:120:0:U", | |
844 | "DS:maxdisk:GAUGE:120:0:U", | |
845 | "DS:disk:GAUGE:120:0:U", | |
764296f1 DM |
846 | "DS:netin:DERIVE:120:0:U", |
847 | "DS:netout:DERIVE:120:0:U", | |
848 | "DS:diskread:DERIVE:120:0:U", | |
849 | "DS:diskwrite:DERIVE:120:0:U", | |
fe000966 DM |
850 | |
851 | "RRA:AVERAGE:0.5:1:70", // 1 min avg - one hour | |
852 | "RRA:AVERAGE:0.5:30:70", // 30 min avg - one day | |
853 | "RRA:AVERAGE:0.5:180:70", // 3 hour avg - one week | |
854 | "RRA:AVERAGE:0.5:720:70", // 12 hour avg - one month | |
855 | "RRA:AVERAGE:0.5:10080:70", // 7 day avg - ony year | |
856 | ||
857 | "RRA:MAX:0.5:1:70", // 1 min max - one hour | |
858 | "RRA:MAX:0.5:30:70", // 30 min max - one day | |
859 | "RRA:MAX:0.5:180:70", // 3 hour max - one week | |
860 | "RRA:MAX:0.5:720:70", // 12 hour max - one month | |
861 | "RRA:MAX:0.5:10080:70", // 7 day max - ony year | |
862 | NULL, | |
863 | }; | |
864 | ||
865 | static const char *rrd_def_storage[] = { | |
866 | "DS:total:GAUGE:120:0:U", | |
867 | "DS:used:GAUGE:120:0:U", | |
868 | ||
869 | "RRA:AVERAGE:0.5:1:70", // 1 min avg - one hour | |
870 | "RRA:AVERAGE:0.5:30:70", // 30 min avg - one day | |
871 | "RRA:AVERAGE:0.5:180:70", // 3 hour avg - one week | |
872 | "RRA:AVERAGE:0.5:720:70", // 12 hour avg - one month | |
873 | "RRA:AVERAGE:0.5:10080:70", // 7 day avg - ony year | |
874 | ||
875 | "RRA:MAX:0.5:1:70", // 1 min max - one hour | |
876 | "RRA:MAX:0.5:30:70", // 30 min max - one day | |
877 | "RRA:MAX:0.5:180:70", // 3 hour max - one week | |
878 | "RRA:MAX:0.5:720:70", // 12 hour max - one month | |
879 | "RRA:MAX:0.5:10080:70", // 7 day max - ony year | |
880 | NULL, | |
881 | }; | |
882 | ||
883 | #define RRDDIR "/var/lib/rrdcached/db" | |
884 | ||
885 | static void | |
886 | create_rrd_file( | |
887 | const char *filename, | |
888 | int argcount, | |
889 | const char *rrddef[]) | |
890 | { | |
891 | /* start at day boundary */ | |
892 | time_t ctime; | |
893 | time(&ctime); | |
894 | struct tm *ltm = localtime(&ctime); | |
895 | ltm->tm_sec = 0; | |
896 | ltm->tm_min = 0; | |
897 | ltm->tm_hour = 0; | |
898 | ||
899 | rrd_clear_error(); | |
900 | if (rrd_create_r(filename, 60, timelocal(ltm), argcount, rrddef)) { | |
901 | cfs_message("RRD create error %s: %s", filename, rrd_get_error()); | |
902 | } | |
903 | } | |
904 | ||
905 | static inline const char * | |
906 | rrd_skip_data( | |
907 | const char *data, | |
908 | int count) | |
909 | { | |
910 | int found = 0; | |
911 | while (*data && found < count) { | |
912 | if (*data++ == ':') | |
913 | found++; | |
914 | } | |
915 | return data; | |
916 | } | |
917 | ||
918 | static void | |
919 | update_rrd_data( | |
920 | const char *key, | |
921 | gconstpointer data, | |
922 | size_t len) | |
923 | { | |
924 | g_return_if_fail(key != NULL); | |
925 | g_return_if_fail(data != NULL); | |
926 | g_return_if_fail(len > 0); | |
927 | g_return_if_fail(len < 4096); | |
928 | ||
929 | static const char *rrdcsock = "unix:/var/run/rrdcached.sock"; | |
930 | ||
931 | int use_daemon = 1; | |
932 | if (rrdc_connect(rrdcsock) != 0) | |
933 | use_daemon = 0; | |
934 | ||
ba9dcfc1 | 935 | char *filename = NULL; |
fe000966 DM |
936 | |
937 | int skip = 0; | |
938 | ||
939 | if (strncmp(key, "pve2-node/", 10) == 0) { | |
940 | const char *node = key + 10; | |
941 | ||
f9c865a8 | 942 | skip = 2; |
fe000966 DM |
943 | |
944 | if (strchr(node, '/') != NULL) | |
945 | goto keyerror; | |
946 | ||
947 | if (strlen(node) < 1) | |
948 | goto keyerror; | |
949 | ||
ba9dcfc1 DM |
950 | filename = g_strdup_printf(RRDDIR "/%s", key); |
951 | ||
fe000966 DM |
952 | if (!g_file_test(filename, G_FILE_TEST_EXISTS)) { |
953 | ||
954 | mkdir(RRDDIR "/pve2-node", 0755); | |
955 | int argcount = sizeof(rrd_def_node)/sizeof(void*) - 1; | |
956 | create_rrd_file(filename, argcount, rrd_def_node); | |
957 | } | |
958 | ||
ba9dcfc1 DM |
959 | } else if ((strncmp(key, "pve2-vm/", 8) == 0) || |
960 | (strncmp(key, "pve2.3-vm/", 10) == 0)) { | |
961 | const char *vmid; | |
fe000966 | 962 | |
ba9dcfc1 DM |
963 | if (strncmp(key, "pve2-vm/", 8) == 0) { |
964 | vmid = key + 8; | |
965 | skip = 2; | |
966 | } else { | |
967 | vmid = key + 10; | |
94e4cba3 | 968 | skip = 4; |
ba9dcfc1 | 969 | } |
fe000966 DM |
970 | |
971 | if (strchr(vmid, '/') != NULL) | |
972 | goto keyerror; | |
973 | ||
974 | if (strlen(vmid) < 1) | |
975 | goto keyerror; | |
976 | ||
ba9dcfc1 DM |
977 | filename = g_strdup_printf(RRDDIR "/%s/%s", "pve2-vm", vmid); |
978 | ||
fe000966 DM |
979 | if (!g_file_test(filename, G_FILE_TEST_EXISTS)) { |
980 | ||
981 | mkdir(RRDDIR "/pve2-vm", 0755); | |
982 | int argcount = sizeof(rrd_def_vm)/sizeof(void*) - 1; | |
983 | create_rrd_file(filename, argcount, rrd_def_vm); | |
984 | } | |
985 | ||
986 | } else if (strncmp(key, "pve2-storage/", 13) == 0) { | |
987 | const char *node = key + 13; | |
988 | ||
989 | const char *storage = node; | |
990 | while (*storage && *storage != '/') | |
991 | storage++; | |
992 | ||
993 | if (*storage != '/' || ((storage - node) < 1)) | |
994 | goto keyerror; | |
995 | ||
996 | storage++; | |
997 | ||
998 | if (strchr(storage, '/') != NULL) | |
999 | goto keyerror; | |
1000 | ||
1001 | if (strlen(storage) < 1) | |
1002 | goto keyerror; | |
1003 | ||
ba9dcfc1 DM |
1004 | filename = g_strdup_printf(RRDDIR "/%s", key); |
1005 | ||
fe000966 DM |
1006 | if (!g_file_test(filename, G_FILE_TEST_EXISTS)) { |
1007 | ||
1008 | mkdir(RRDDIR "/pve2-storage", 0755); | |
1009 | ||
1010 | char *dir = g_path_get_dirname(filename); | |
1011 | mkdir(dir, 0755); | |
1012 | g_free(dir); | |
1013 | ||
1014 | int argcount = sizeof(rrd_def_storage)/sizeof(void*) - 1; | |
1015 | create_rrd_file(filename, argcount, rrd_def_storage); | |
1016 | } | |
1017 | ||
1018 | } else { | |
1019 | goto keyerror; | |
1020 | } | |
1021 | ||
1022 | const char *dp = skip ? rrd_skip_data(data, skip) : data; | |
1023 | ||
1024 | const char *update_args[] = { dp, NULL }; | |
1025 | ||
1026 | if (use_daemon) { | |
1027 | int status; | |
1028 | if ((status = rrdc_update(filename, 1, update_args)) != 0) { | |
1029 | cfs_message("RRDC update error %s: %d", filename, status); | |
1030 | rrdc_disconnect(); | |
1031 | rrd_clear_error(); | |
1032 | if (rrd_update_r(filename, NULL, 1, update_args) != 0) { | |
1033 | cfs_message("RRD update error %s: %s", filename, rrd_get_error()); | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | } else { | |
1038 | rrd_clear_error(); | |
1039 | if (rrd_update_r(filename, NULL, 1, update_args) != 0) { | |
1040 | cfs_message("RRD update error %s: %s", filename, rrd_get_error()); | |
1041 | } | |
1042 | } | |
1043 | ||
1044 | ret: | |
ba9dcfc1 DM |
1045 | if (filename) |
1046 | g_free(filename); | |
1047 | ||
fe000966 DM |
1048 | return; |
1049 | ||
1050 | keyerror: | |
1051 | cfs_critical("RRD update error: unknown/wrong key %s", key); | |
1052 | goto ret; | |
1053 | } | |
1054 | ||
1055 | static gboolean | |
1056 | rrd_entry_is_old( | |
1057 | gpointer key, | |
1058 | gpointer value, | |
1059 | gpointer user_data) | |
1060 | { | |
1061 | rrdentry_t *entry = (rrdentry_t *)value; | |
1062 | uint32_t ctime = GPOINTER_TO_UINT(user_data); | |
1063 | ||
1064 | int diff = ctime - entry->time; | |
1065 | ||
1066 | /* remove everything older than 5 minutes */ | |
1067 | int expire = 60*5; | |
1068 | ||
1069 | return (diff > expire) ? TRUE : FALSE; | |
1070 | } | |
1071 | ||
1072 | static char *rrd_dump_buf = NULL; | |
1073 | static time_t rrd_dump_last = 0; | |
1074 | ||
1075 | void | |
1076 | cfs_rrd_dump(GString *str) | |
1077 | { | |
1078 | time_t ctime; | |
fe000966 | 1079 | |
663896cf TL |
1080 | g_mutex_lock (&mutex); |
1081 | ||
1082 | time(&ctime); | |
fe000966 DM |
1083 | if (rrd_dump_buf && (ctime - rrd_dump_last) < 2) { |
1084 | g_string_assign(str, rrd_dump_buf); | |
663896cf | 1085 | g_mutex_unlock (&mutex); |
fe000966 DM |
1086 | return; |
1087 | } | |
1088 | ||
1089 | /* remove old data */ | |
1090 | g_hash_table_foreach_remove(cfs_status.rrdhash, rrd_entry_is_old, | |
1091 | GUINT_TO_POINTER(ctime)); | |
1092 | ||
1093 | g_string_set_size(str, 0); | |
1094 | ||
1095 | GHashTableIter iter; | |
1096 | gpointer key, value; | |
1097 | ||
1098 | g_hash_table_iter_init (&iter, cfs_status.rrdhash); | |
1099 | ||
1100 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
1101 | rrdentry_t *entry = (rrdentry_t *)value; | |
1102 | g_string_append(str, key); | |
1103 | g_string_append(str, ":"); | |
1104 | g_string_append(str, entry->data); | |
1105 | g_string_append(str, "\n"); | |
1106 | } | |
1107 | ||
1108 | g_string_append_c(str, 0); // never return undef | |
1109 | ||
1110 | rrd_dump_last = ctime; | |
1111 | if (rrd_dump_buf) | |
1112 | g_free(rrd_dump_buf); | |
1113 | rrd_dump_buf = g_strdup(str->str); | |
663896cf TL |
1114 | |
1115 | g_mutex_unlock (&mutex); | |
fe000966 DM |
1116 | } |
1117 | ||
1118 | static gboolean | |
1119 | nodeip_hash_set( | |
1120 | GHashTable *iphash, | |
1121 | const char *nodename, | |
1122 | const char *ip, | |
1123 | size_t len) | |
1124 | { | |
1125 | g_return_val_if_fail(iphash != NULL, FALSE); | |
1126 | g_return_val_if_fail(nodename != NULL, FALSE); | |
1127 | g_return_val_if_fail(ip != NULL, FALSE); | |
1128 | g_return_val_if_fail(len > 0, FALSE); | |
1129 | g_return_val_if_fail(len < 256, FALSE); | |
1130 | g_return_val_if_fail(ip[len-1] == 0, FALSE); | |
1131 | ||
1132 | char *oldip = (char *)g_hash_table_lookup(iphash, nodename); | |
1133 | ||
1134 | if (!oldip || (strcmp(oldip, ip) != 0)) { | |
1135 | cfs_status.clinfo_version++; | |
1136 | g_hash_table_replace(iphash, g_strdup(nodename), g_strdup(ip)); | |
1137 | } | |
1138 | ||
1139 | return TRUE; | |
1140 | } | |
1141 | ||
1142 | static gboolean | |
1143 | rrdentry_hash_set( | |
1144 | GHashTable *rrdhash, | |
1145 | const char *key, | |
1146 | const char *data, | |
1147 | size_t len) | |
1148 | { | |
1149 | g_return_val_if_fail(rrdhash != NULL, FALSE); | |
1150 | g_return_val_if_fail(key != NULL, FALSE); | |
1151 | g_return_val_if_fail(data != NULL, FALSE); | |
1152 | g_return_val_if_fail(len > 0, FALSE); | |
1153 | g_return_val_if_fail(len < 4096, FALSE); | |
1154 | g_return_val_if_fail(data[len-1] == 0, FALSE); | |
1155 | ||
1156 | rrdentry_t *entry; | |
1157 | if ((entry = (rrdentry_t *)g_hash_table_lookup(rrdhash, key))) { | |
1158 | g_free(entry->data); | |
1159 | entry->data = g_memdup(data, len); | |
1160 | entry->len = len; | |
1161 | entry->time = time(NULL); | |
1162 | } else { | |
1163 | rrdentry_t *entry = g_new0(rrdentry_t, 1); | |
1164 | ||
1165 | entry->key = g_strdup(key); | |
1166 | entry->data = g_memdup(data, len); | |
1167 | entry->len = len; | |
1168 | entry->time = time(NULL); | |
1169 | ||
1170 | g_hash_table_replace(rrdhash, entry->key, entry); | |
1171 | } | |
1172 | ||
1173 | update_rrd_data(key, data, len); | |
1174 | ||
1175 | return TRUE; | |
1176 | } | |
1177 | ||
1178 | static int | |
1179 | kvstore_send_update_message( | |
1180 | dfsm_t *dfsm, | |
1181 | const char *key, | |
1182 | gpointer data, | |
1183 | guint32 len) | |
1184 | { | |
af2e9dd4 DM |
1185 | if (!dfsm_is_initialized(dfsm)) |
1186 | return -EACCES; | |
fe000966 DM |
1187 | |
1188 | struct iovec iov[2]; | |
1189 | ||
1190 | char name[256]; | |
1191 | g_strlcpy(name, key, sizeof(name)); | |
1192 | ||
1193 | iov[0].iov_base = &name; | |
1194 | iov[0].iov_len = sizeof(name); | |
1195 | ||
1196 | iov[1].iov_base = (char *)data; | |
1197 | iov[1].iov_len = len; | |
1198 | ||
1199 | if (dfsm_send_message(dfsm, KVSTORE_MESSAGE_UPDATE, iov, 2) == CS_OK) | |
1200 | return 0; | |
1201 | ||
1202 | return -EACCES; | |
1203 | } | |
1204 | ||
1205 | static clog_entry_t * | |
1206 | kvstore_parse_log_message( | |
1207 | const void *msg, | |
1208 | size_t msg_len) | |
1209 | { | |
1210 | g_return_val_if_fail(msg != NULL, NULL); | |
1211 | ||
1212 | if (msg_len < sizeof(clog_entry_t)) { | |
e5a5a3ea | 1213 | cfs_critical("received short log message (%zu < %zu)", msg_len, sizeof(clog_entry_t)); |
fe000966 DM |
1214 | return NULL; |
1215 | } | |
1216 | ||
1217 | clog_entry_t *entry = (clog_entry_t *)msg; | |
1218 | ||
1219 | uint32_t size = sizeof(clog_entry_t) + entry->node_len + | |
1220 | entry->ident_len + entry->tag_len + entry->msg_len; | |
1221 | ||
1222 | if (msg_len != size) { | |
e5a5a3ea | 1223 | cfs_critical("received log message with wrong size (%zu != %u)", msg_len, size); |
fe000966 DM |
1224 | return NULL; |
1225 | } | |
1226 | ||
1227 | msg = entry->data; | |
1228 | ||
1229 | if (*((char *)msg + entry->node_len - 1)) { | |
1230 | cfs_critical("unterminated string in log message"); | |
1231 | return NULL; | |
1232 | } | |
1233 | msg += entry->node_len; | |
1234 | ||
1235 | if (*((char *)msg + entry->ident_len - 1)) { | |
1236 | cfs_critical("unterminated string in log message"); | |
1237 | return NULL; | |
1238 | } | |
1239 | msg += entry->ident_len; | |
1240 | ||
1241 | if (*((char *)msg + entry->tag_len - 1)) { | |
1242 | cfs_critical("unterminated string in log message"); | |
1243 | return NULL; | |
1244 | } | |
1245 | msg += entry->tag_len; | |
1246 | ||
1247 | if (*((char *)msg + entry->msg_len - 1)) { | |
1248 | cfs_critical("unterminated string in log message"); | |
1249 | return NULL; | |
1250 | } | |
1251 | ||
1252 | return entry; | |
1253 | } | |
1254 | ||
1255 | static gboolean | |
1256 | kvstore_parse_update_message( | |
1257 | const void *msg, | |
1258 | size_t msg_len, | |
1259 | const char **key, | |
1260 | gconstpointer *data, | |
1261 | guint32 *len) | |
1262 | { | |
1263 | g_return_val_if_fail(msg != NULL, FALSE); | |
1264 | g_return_val_if_fail(key != NULL, FALSE); | |
1265 | g_return_val_if_fail(data != NULL, FALSE); | |
1266 | g_return_val_if_fail(len != NULL, FALSE); | |
1267 | ||
1268 | if (msg_len < 256) { | |
e5a5a3ea | 1269 | cfs_critical("received short kvstore message (%zu < 256)", msg_len); |
fe000966 DM |
1270 | return FALSE; |
1271 | } | |
1272 | ||
1273 | /* test if key is null terminated */ | |
1274 | int i = 0; | |
1275 | for (i = 0; i < 256; i++) | |
1276 | if (((char *)msg)[i] == 0) | |
1277 | break; | |
1278 | ||
1279 | if (i == 256) | |
1280 | return FALSE; | |
1281 | ||
1282 | ||
1283 | *len = msg_len - 256; | |
1284 | *key = msg; | |
1285 | *data = msg + 256; | |
1286 | ||
1287 | return TRUE; | |
1288 | } | |
1289 | ||
1290 | int | |
1291 | cfs_create_status_msg( | |
1292 | GString *str, | |
1293 | const char *nodename, | |
1294 | const char *key) | |
1295 | { | |
1296 | g_return_val_if_fail(str != NULL, -EINVAL); | |
1297 | g_return_val_if_fail(key != NULL, -EINVAL); | |
1298 | ||
1299 | int res = -ENOENT; | |
1300 | ||
1301 | GHashTable *kvhash = NULL; | |
1302 | ||
89fde9ac | 1303 | g_mutex_lock (&mutex); |
fe000966 DM |
1304 | |
1305 | if (!nodename || !nodename[0] || !strcmp(nodename, cfs.nodename)) { | |
1306 | kvhash = cfs_status.kvhash; | |
043bbd8f | 1307 | } else if (cfs_status.clinfo && cfs_status.clinfo->nodes_byname) { |
fe000966 DM |
1308 | cfs_clnode_t *clnode; |
1309 | if ((clnode = g_hash_table_lookup(cfs_status.clinfo->nodes_byname, nodename))) | |
1310 | kvhash = clnode->kvhash; | |
1311 | } | |
1312 | ||
1313 | kventry_t *entry; | |
1314 | if (kvhash && (entry = (kventry_t *)g_hash_table_lookup(kvhash, key))) { | |
1315 | g_string_append_len(str, entry->data, entry->len); | |
1316 | res = 0; | |
1317 | } | |
1318 | ||
89fde9ac | 1319 | g_mutex_unlock (&mutex); |
fe000966 DM |
1320 | |
1321 | return res; | |
1322 | } | |
1323 | ||
1324 | int | |
1325 | cfs_status_set( | |
1326 | const char *key, | |
1327 | gpointer data, | |
1328 | size_t len) | |
1329 | { | |
1330 | g_return_val_if_fail(key != NULL, FALSE); | |
1331 | g_return_val_if_fail(data != NULL, FALSE); | |
1332 | g_return_val_if_fail(cfs_status.kvhash != NULL, FALSE); | |
1333 | ||
1334 | if (len > CFS_MAX_STATUS_SIZE) | |
1335 | return -EFBIG; | |
1336 | ||
89fde9ac | 1337 | g_mutex_lock (&mutex); |
fe000966 DM |
1338 | |
1339 | gboolean res; | |
1340 | ||
1341 | if (strncmp(key, "rrd/", 4) == 0) { | |
1342 | res = rrdentry_hash_set(cfs_status.rrdhash, key + 4, data, len); | |
1343 | } else if (!strcmp(key, "nodeip")) { | |
1344 | res = nodeip_hash_set(cfs_status.iphash, cfs.nodename, data, len); | |
1345 | } else { | |
1346 | res = kventry_hash_set(cfs_status.kvhash, key, data, len); | |
1347 | } | |
89fde9ac | 1348 | g_mutex_unlock (&mutex); |
fe000966 DM |
1349 | |
1350 | if (cfs_status.kvstore) | |
1351 | kvstore_send_update_message(cfs_status.kvstore, key, data, len); | |
1352 | ||
1353 | return res ? 0 : -ENOMEM; | |
1354 | } | |
1355 | ||
1356 | gboolean | |
1357 | cfs_kvstore_node_set( | |
1358 | uint32_t nodeid, | |
1359 | const char *key, | |
1360 | gconstpointer data, | |
1361 | size_t len) | |
1362 | { | |
1363 | g_return_val_if_fail(nodeid != 0, FALSE); | |
1364 | g_return_val_if_fail(key != NULL, FALSE); | |
1365 | g_return_val_if_fail(data != NULL, FALSE); | |
1366 | ||
89fde9ac | 1367 | g_mutex_lock (&mutex); |
fe000966 DM |
1368 | |
1369 | if (!cfs_status.clinfo || !cfs_status.clinfo->nodes_byid) | |
1370 | goto ret; /* ignore */ | |
1371 | ||
1372 | cfs_clnode_t *clnode = g_hash_table_lookup(cfs_status.clinfo->nodes_byid, &nodeid); | |
1373 | if (!clnode) | |
1374 | goto ret; /* ignore */ | |
1375 | ||
1376 | cfs_debug("got node %d status update %s", nodeid, key); | |
1377 | ||
1378 | if (strncmp(key, "rrd/", 4) == 0) { | |
1379 | rrdentry_hash_set(cfs_status.rrdhash, key + 4, data, len); | |
1380 | } else if (!strcmp(key, "nodeip")) { | |
1381 | nodeip_hash_set(cfs_status.iphash, clnode->name, data, len); | |
1382 | } else { | |
1383 | if (!clnode->kvhash) { | |
1384 | if (!(clnode->kvhash = kventry_hash_new())) { | |
1385 | goto ret; /*ignore */ | |
1386 | } | |
1387 | } | |
1388 | ||
1389 | kventry_hash_set(clnode->kvhash, key, data, len); | |
1390 | ||
1391 | } | |
1392 | ret: | |
89fde9ac | 1393 | g_mutex_unlock (&mutex); |
fe000966 DM |
1394 | |
1395 | return TRUE; | |
1396 | } | |
1397 | ||
1398 | static gboolean | |
1399 | cfs_kvstore_sync(void) | |
1400 | { | |
1401 | g_return_val_if_fail(cfs_status.kvhash != NULL, FALSE); | |
1402 | g_return_val_if_fail(cfs_status.kvstore != NULL, FALSE); | |
1403 | ||
1404 | gboolean res = TRUE; | |
1405 | ||
89fde9ac | 1406 | g_mutex_lock (&mutex); |
fe000966 DM |
1407 | |
1408 | GHashTable *ht = cfs_status.kvhash; | |
1409 | GHashTableIter iter; | |
1410 | gpointer key, value; | |
1411 | ||
1412 | g_hash_table_iter_init (&iter, ht); | |
1413 | ||
1414 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
1415 | kventry_t *entry = (kventry_t *)value; | |
1416 | kvstore_send_update_message(cfs_status.kvstore, entry->key, entry->data, entry->len); | |
1417 | } | |
1418 | ||
89fde9ac | 1419 | g_mutex_unlock (&mutex); |
fe000966 DM |
1420 | |
1421 | return res; | |
1422 | } | |
1423 | ||
1424 | static int | |
1425 | dfsm_deliver( | |
1426 | dfsm_t *dfsm, | |
1427 | gpointer data, | |
1428 | int *res_ptr, | |
1429 | uint32_t nodeid, | |
1430 | uint32_t pid, | |
1431 | uint16_t msg_type, | |
1432 | uint32_t msg_time, | |
1433 | const void *msg, | |
1434 | size_t msg_len) | |
1435 | { | |
1436 | g_return_val_if_fail(dfsm != NULL, -1); | |
1437 | g_return_val_if_fail(msg != NULL, -1); | |
1438 | g_return_val_if_fail(res_ptr != NULL, -1); | |
1439 | ||
1440 | /* ignore message for ourself */ | |
1441 | if (dfsm_nodeid_is_local(dfsm, nodeid, pid)) | |
1442 | goto ret; | |
1443 | ||
1444 | if (msg_type == KVSTORE_MESSAGE_UPDATE) { | |
1445 | const char *key; | |
1446 | gconstpointer data; | |
1447 | guint32 len; | |
1448 | if (kvstore_parse_update_message(msg, msg_len, &key, &data, &len)) { | |
1449 | cfs_kvstore_node_set(nodeid, key, data, len); | |
1450 | } else { | |
1451 | cfs_critical("cant parse update message"); | |
1452 | } | |
1453 | } else if (msg_type == KVSTORE_MESSAGE_LOG) { | |
1454 | cfs_message("received log"); // fixme: remove | |
1455 | const clog_entry_t *entry; | |
1456 | if ((entry = kvstore_parse_log_message(msg, msg_len))) { | |
1457 | clusterlog_insert(cfs_status.clusterlog, entry); | |
1458 | } else { | |
1459 | cfs_critical("cant parse log message"); | |
1460 | } | |
1461 | } else { | |
1462 | cfs_critical("received unknown message type %d\n", msg_type); | |
1463 | goto fail; | |
1464 | } | |
1465 | ||
1466 | ret: | |
1467 | *res_ptr = 0; | |
1468 | return 1; | |
1469 | ||
1470 | fail: | |
1471 | *res_ptr = -EACCES; | |
1472 | return 1; | |
1473 | } | |
1474 | ||
1475 | static void | |
1476 | dfsm_confchg( | |
1477 | dfsm_t *dfsm, | |
1478 | gpointer data, | |
1479 | const struct cpg_address *member_list, | |
1480 | size_t member_list_entries) | |
1481 | { | |
1482 | g_return_if_fail(dfsm != NULL); | |
1483 | g_return_if_fail(member_list != NULL); | |
1484 | ||
1485 | cfs_debug("enter %s", __func__); | |
1486 | ||
89fde9ac | 1487 | g_mutex_lock (&mutex); |
fe000966 DM |
1488 | |
1489 | cfs_clinfo_t *clinfo = cfs_status.clinfo; | |
1490 | ||
1491 | if (clinfo && clinfo->nodes_byid) { | |
1492 | ||
1493 | GHashTable *ht = clinfo->nodes_byid; | |
1494 | GHashTableIter iter; | |
1495 | gpointer key, value; | |
1496 | ||
1497 | g_hash_table_iter_init (&iter, ht); | |
1498 | ||
1499 | while (g_hash_table_iter_next (&iter, &key, &value)) { | |
1500 | cfs_clnode_t *node = (cfs_clnode_t *)value; | |
1501 | node->online = FALSE; | |
1502 | } | |
1503 | ||
1504 | for (int i = 0; i < member_list_entries; i++) { | |
1505 | cfs_clnode_t *node; | |
1506 | if ((node = g_hash_table_lookup(clinfo->nodes_byid, &member_list[i].nodeid))) { | |
1507 | node->online = TRUE; | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | cfs_status.clinfo_version++; | |
1512 | } | |
1513 | ||
89fde9ac | 1514 | g_mutex_unlock (&mutex); |
fe000966 DM |
1515 | } |
1516 | ||
1517 | static gpointer | |
1518 | dfsm_get_state( | |
1519 | dfsm_t *dfsm, | |
1520 | gpointer data, | |
1521 | unsigned int *res_len) | |
1522 | { | |
1523 | g_return_val_if_fail(dfsm != NULL, NULL); | |
1524 | ||
1525 | gpointer msg = clusterlog_get_state(cfs_status.clusterlog, res_len); | |
1526 | ||
1527 | return msg; | |
1528 | } | |
1529 | ||
1530 | static int | |
1531 | dfsm_process_update( | |
1532 | dfsm_t *dfsm, | |
1533 | gpointer data, | |
1534 | dfsm_sync_info_t *syncinfo, | |
1535 | uint32_t nodeid, | |
1536 | uint32_t pid, | |
1537 | const void *msg, | |
1538 | size_t msg_len) | |
1539 | { | |
1540 | cfs_critical("%s: received unexpected update message", __func__); | |
1541 | ||
1542 | return -1; | |
1543 | } | |
1544 | ||
1545 | static int | |
1546 | dfsm_process_state_update( | |
1547 | dfsm_t *dfsm, | |
1548 | gpointer data, | |
1549 | dfsm_sync_info_t *syncinfo) | |
1550 | { | |
1551 | g_return_val_if_fail(dfsm != NULL, -1); | |
1552 | g_return_val_if_fail(syncinfo != NULL, -1); | |
1553 | ||
1554 | clog_base_t *clog[syncinfo->node_count]; | |
1555 | ||
1556 | int local_index = -1; | |
1557 | for (int i = 0; i < syncinfo->node_count; i++) { | |
1558 | dfsm_node_info_t *ni = &syncinfo->nodes[i]; | |
1559 | ni->synced = 1; | |
1560 | ||
1561 | if (syncinfo->local == ni) | |
1562 | local_index = i; | |
1563 | ||
1564 | clog_base_t *base = (clog_base_t *)ni->state; | |
1565 | if (ni->state_len > 8 && ni->state_len == clog_size(base)) { | |
1566 | clog[i] = ni->state; | |
1567 | } else { | |
1568 | cfs_critical("received log with wrong size %u", ni->state_len); | |
1569 | clog[i] = NULL; | |
1570 | } | |
1571 | } | |
1572 | ||
1573 | if (!clusterlog_merge(cfs_status.clusterlog, clog, syncinfo->node_count, local_index)) { | |
1574 | cfs_critical("unable to merge log files"); | |
1575 | } | |
1576 | ||
1577 | cfs_kvstore_sync(); | |
1578 | ||
1579 | return 1; | |
1580 | } | |
1581 | ||
1582 | static int | |
1583 | dfsm_commit( | |
1584 | dfsm_t *dfsm, | |
1585 | gpointer data, | |
1586 | dfsm_sync_info_t *syncinfo) | |
1587 | { | |
1588 | g_return_val_if_fail(dfsm != NULL, -1); | |
1589 | g_return_val_if_fail(syncinfo != NULL, -1); | |
1590 | ||
1591 | return 1; | |
1592 | } | |
1593 | ||
1594 | static void | |
1595 | dfsm_synced(dfsm_t *dfsm) | |
1596 | { | |
1597 | g_return_if_fail(dfsm != NULL); | |
1598 | ||
1599 | char *ip = (char *)g_hash_table_lookup(cfs_status.iphash, cfs.nodename); | |
1600 | if (!ip) | |
1601 | ip = cfs.ip; | |
1602 | ||
1603 | cfs_status_set("nodeip", ip, strlen(ip) + 1); | |
1604 | } | |
1605 | ||
1606 | static int | |
1607 | dfsm_cleanup( | |
1608 | dfsm_t *dfsm, | |
1609 | gpointer data, | |
1610 | dfsm_sync_info_t *syncinfo) | |
1611 | { | |
1612 | return 1; | |
1613 | } | |
1614 | ||
1615 | static dfsm_callbacks_t kvstore_dfsm_callbacks = { | |
1616 | .dfsm_deliver_fn = dfsm_deliver, | |
1617 | .dfsm_confchg_fn = dfsm_confchg, | |
1618 | ||
1619 | .dfsm_get_state_fn = dfsm_get_state, | |
1620 | .dfsm_process_state_update_fn = dfsm_process_state_update, | |
1621 | .dfsm_process_update_fn = dfsm_process_update, | |
1622 | .dfsm_commit_fn = dfsm_commit, | |
1623 | .dfsm_cleanup_fn = dfsm_cleanup, | |
1624 | .dfsm_synced_fn = dfsm_synced, | |
1625 | }; | |
1626 | ||
1627 | dfsm_t * | |
1628 | cfs_status_dfsm_new(void) | |
1629 | { | |
89fde9ac | 1630 | g_mutex_lock (&mutex); |
fe000966 DM |
1631 | |
1632 | cfs_status.kvstore = dfsm_new(NULL, KVSTORE_CPG_GROUP_NAME, G_LOG_DOMAIN, | |
1633 | 0, &kvstore_dfsm_callbacks); | |
89fde9ac | 1634 | g_mutex_unlock (&mutex); |
fe000966 DM |
1635 | |
1636 | return cfs_status.kvstore; | |
1637 | } | |
1638 | ||
1639 | gboolean | |
1640 | cfs_is_quorate(void) | |
1641 | { | |
89fde9ac | 1642 | g_mutex_lock (&mutex); |
fe000966 | 1643 | gboolean res = cfs_status.quorate; |
89fde9ac | 1644 | g_mutex_unlock (&mutex); |
fe000966 DM |
1645 | |
1646 | return res; | |
1647 | } | |
1648 | ||
1649 | void | |
1650 | cfs_set_quorate( | |
1651 | uint32_t quorate, | |
1652 | gboolean quiet) | |
1653 | { | |
89fde9ac | 1654 | g_mutex_lock (&mutex); |
fe000966 DM |
1655 | |
1656 | uint32_t prev_quorate = cfs_status.quorate; | |
1657 | cfs_status.quorate = quorate; | |
1658 | ||
1659 | if (!prev_quorate && cfs_status.quorate) { | |
1660 | if (!quiet) | |
1661 | cfs_message("node has quorum"); | |
1662 | } | |
1663 | ||
1664 | if (prev_quorate && !cfs_status.quorate) { | |
1665 | if (!quiet) | |
1666 | cfs_message("node lost quorum"); | |
1667 | } | |
1668 | ||
89fde9ac | 1669 | g_mutex_unlock (&mutex); |
fe000966 DM |
1670 | } |
1671 |