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 (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Joyent, Inc.
27 */
28
29 #include <sys/spa.h>
30 #include <sys/spa_impl.h>
31 #include <sys/zap.h>
32 #include <sys/dsl_synctask.h>
33 #include <sys/dmu_tx.h>
34 #include <sys/dmu_objset.h>
35 #include <sys/dsl_dataset.h>
36 #include <sys/dsl_dir.h>
37 #include <sys/utsname.h>
38 #include <sys/cmn_err.h>
39 #include <sys/sunddi.h>
40 #include <sys/cred.h>
41 #include "zfs_comutil.h"
42 #ifdef _KERNEL
43 #include <sys/zone.h>
44 #endif
45
46 /*
47 * Routines to manage the on-disk history log.
48 *
49 * The history log is stored as a dmu object containing
50 * <packed record length, record nvlist> tuples.
51 *
52 * Where "record nvlist" is a nvlist containing uint64_ts and strings, and
53 * "packed record length" is the packed length of the "record nvlist" stored
54 * as a little endian uint64_t.
55 *
56 * The log is implemented as a ring buffer, though the original creation
57 * of the pool ('zpool create') is never overwritten.
58 *
59 * The history log is tracked as object 'spa_t::spa_history'. The bonus buffer
60 * of 'spa_history' stores the offsets for logging/retrieving history as
61 * 'spa_history_phys_t'. 'sh_pool_create_len' is the ending offset in bytes of
62 * where the 'zpool create' record is stored. This allows us to never
63 * overwrite the original creation of the pool. 'sh_phys_max_off' is the
64 * physical ending offset in bytes of the log. This tells you the length of
65 * the buffer. 'sh_eof' is the logical EOF (in bytes). Whenever a record
66 * is added, 'sh_eof' is incremented by the the size of the record.
67 * 'sh_eof' is never decremented. 'sh_bof' is the logical BOF (in bytes).
68 * This is where the consumer should start reading from after reading in
69 * the 'zpool create' portion of the log.
70 *
71 * 'sh_records_lost' keeps track of how many records have been overwritten
72 * and permanently lost.
73 */
74
75 /* convert a logical offset to physical */
76 static uint64_t
spa_history_log_to_phys(uint64_t log_off,spa_history_phys_t * shpp)77 spa_history_log_to_phys(uint64_t log_off, spa_history_phys_t *shpp)
78 {
79 uint64_t phys_len;
80
81 phys_len = shpp->sh_phys_max_off - shpp->sh_pool_create_len;
82 return ((log_off - shpp->sh_pool_create_len) % phys_len
83 + shpp->sh_pool_create_len);
84 }
85
86 void
spa_history_create_obj(spa_t * spa,dmu_tx_t * tx)87 spa_history_create_obj(spa_t *spa, dmu_tx_t *tx)
88 {
89 dmu_buf_t *dbp;
90 spa_history_phys_t *shpp;
91 objset_t *mos = spa->spa_meta_objset;
92
93 ASSERT(spa->spa_history == 0);
94 spa->spa_history = dmu_object_alloc(mos, DMU_OT_SPA_HISTORY,
95 SPA_OLD_MAXBLOCKSIZE, DMU_OT_SPA_HISTORY_OFFSETS,
96 sizeof (spa_history_phys_t), tx);
97
98 VERIFY(zap_add(mos, DMU_POOL_DIRECTORY_OBJECT,
99 DMU_POOL_HISTORY, sizeof (uint64_t), 1,
100 &spa->spa_history, tx) == 0);
101
102 VERIFY(0 == dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp));
103 ASSERT(dbp->db_size >= sizeof (spa_history_phys_t));
104
105 shpp = dbp->db_data;
106 dmu_buf_will_dirty(dbp, tx);
107
108 /*
109 * Figure out maximum size of history log. We set it at
110 * 0.1% of pool size, with a max of 1G and min of 128KB.
111 */
112 shpp->sh_phys_max_off =
113 metaslab_class_get_dspace(spa_normal_class(spa)) / 1000;
114 shpp->sh_phys_max_off = MIN(shpp->sh_phys_max_off, 1<<30);
115 shpp->sh_phys_max_off = MAX(shpp->sh_phys_max_off, 128<<10);
116
117 dmu_buf_rele(dbp, FTAG);
118 }
119
120 /*
121 * Change 'sh_bof' to the beginning of the next record.
122 */
123 static int
spa_history_advance_bof(spa_t * spa,spa_history_phys_t * shpp)124 spa_history_advance_bof(spa_t *spa, spa_history_phys_t *shpp)
125 {
126 objset_t *mos = spa->spa_meta_objset;
127 uint64_t firstread, reclen, phys_bof;
128 char buf[sizeof (reclen)];
129 int err;
130
131 phys_bof = spa_history_log_to_phys(shpp->sh_bof, shpp);
132 firstread = MIN(sizeof (reclen), shpp->sh_phys_max_off - phys_bof);
133
134 if ((err = dmu_read(mos, spa->spa_history, phys_bof, firstread,
135 buf, DMU_READ_PREFETCH)) != 0)
136 return (err);
137 if (firstread != sizeof (reclen)) {
138 if ((err = dmu_read(mos, spa->spa_history,
139 shpp->sh_pool_create_len, sizeof (reclen) - firstread,
140 buf + firstread, DMU_READ_PREFETCH)) != 0)
141 return (err);
142 }
143
144 reclen = LE_64(*((uint64_t *)buf));
145 shpp->sh_bof += reclen + sizeof (reclen);
146 shpp->sh_records_lost++;
147 return (0);
148 }
149
150 static int
spa_history_write(spa_t * spa,void * buf,uint64_t len,spa_history_phys_t * shpp,dmu_tx_t * tx)151 spa_history_write(spa_t *spa, void *buf, uint64_t len, spa_history_phys_t *shpp,
152 dmu_tx_t *tx)
153 {
154 uint64_t firstwrite, phys_eof;
155 objset_t *mos = spa->spa_meta_objset;
156 int err;
157
158 ASSERT(MUTEX_HELD(&spa->spa_history_lock));
159
160 /* see if we need to reset logical BOF */
161 while (shpp->sh_phys_max_off - shpp->sh_pool_create_len -
162 (shpp->sh_eof - shpp->sh_bof) <= len) {
163 if ((err = spa_history_advance_bof(spa, shpp)) != 0) {
164 return (err);
165 }
166 }
167
168 phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp);
169 firstwrite = MIN(len, shpp->sh_phys_max_off - phys_eof);
170 shpp->sh_eof += len;
171 dmu_write(mos, spa->spa_history, phys_eof, firstwrite, buf, tx);
172
173 len -= firstwrite;
174 if (len > 0) {
175 /* write out the rest at the beginning of physical file */
176 dmu_write(mos, spa->spa_history, shpp->sh_pool_create_len,
177 len, (char *)buf + firstwrite, tx);
178 }
179
180 return (0);
181 }
182
183 static char *
spa_history_zone(void)184 spa_history_zone(void)
185 {
186 #ifdef _KERNEL
187 if (INGLOBALZONE(curproc))
188 return (NULL);
189 return (curproc->p_zone->zone_name);
190 #else
191 return (NULL);
192 #endif
193 }
194
195 /*
196 * Post a history sysevent.
197 *
198 * The nvlist_t* passed into this function will be transformed into a new
199 * nvlist where:
200 *
201 * 1. Nested nvlists will be flattened to a single level
202 * 2. Keys will have their names normalized (to remove any problematic
203 * characters, such as whitespace)
204 *
205 * The nvlist_t passed into this function will duplicated and should be freed
206 * by caller.
207 *
208 */
209 static void
spa_history_log_notify(spa_t * spa,nvlist_t * nvl)210 spa_history_log_notify(spa_t *spa, nvlist_t *nvl)
211 {
212 nvlist_t *hist_nvl = fnvlist_alloc();
213 uint64_t uint64;
214 char *string;
215
216 if (nvlist_lookup_string(nvl, ZPOOL_HIST_CMD, &string) == 0)
217 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_CMD, string);
218
219 if (nvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME, &string) == 0)
220 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_INT_NAME, string);
221
222 if (nvlist_lookup_string(nvl, ZPOOL_HIST_ZONE, &string) == 0)
223 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_ZONE, string);
224
225 if (nvlist_lookup_string(nvl, ZPOOL_HIST_HOST, &string) == 0)
226 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_HOST, string);
227
228 if (nvlist_lookup_string(nvl, ZPOOL_HIST_DSNAME, &string) == 0)
229 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_DSNAME, string);
230
231 if (nvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR, &string) == 0)
232 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_INT_STR, string);
233
234 if (nvlist_lookup_string(nvl, ZPOOL_HIST_IOCTL, &string) == 0)
235 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_IOCTL, string);
236
237 if (nvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME, &string) == 0)
238 fnvlist_add_string(hist_nvl, ZFS_EV_HIST_INT_NAME, string);
239
240 if (nvlist_lookup_uint64(nvl, ZPOOL_HIST_DSID, &uint64) == 0)
241 fnvlist_add_uint64(hist_nvl, ZFS_EV_HIST_DSID, uint64);
242
243 if (nvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG, &uint64) == 0)
244 fnvlist_add_uint64(hist_nvl, ZFS_EV_HIST_TXG, uint64);
245
246 if (nvlist_lookup_uint64(nvl, ZPOOL_HIST_TIME, &uint64) == 0)
247 fnvlist_add_uint64(hist_nvl, ZFS_EV_HIST_TIME, uint64);
248
249 if (nvlist_lookup_uint64(nvl, ZPOOL_HIST_WHO, &uint64) == 0)
250 fnvlist_add_uint64(hist_nvl, ZFS_EV_HIST_WHO, uint64);
251
252 if (nvlist_lookup_uint64(nvl, ZPOOL_HIST_INT_EVENT, &uint64) == 0)
253 fnvlist_add_uint64(hist_nvl, ZFS_EV_HIST_INT_EVENT, uint64);
254
255 spa_event_notify(spa, NULL, hist_nvl, ESC_ZFS_HISTORY_EVENT);
256
257 nvlist_free(hist_nvl);
258 }
259
260 /*
261 * Write out a history event.
262 */
263 /*ARGSUSED*/
264 static void
spa_history_log_sync(void * arg,dmu_tx_t * tx)265 spa_history_log_sync(void *arg, dmu_tx_t *tx)
266 {
267 nvlist_t *nvl = arg;
268 spa_t *spa = dmu_tx_pool(tx)->dp_spa;
269 objset_t *mos = spa->spa_meta_objset;
270 dmu_buf_t *dbp;
271 spa_history_phys_t *shpp;
272 size_t reclen;
273 uint64_t le_len;
274 char *record_packed = NULL;
275 int ret;
276
277 /*
278 * If we have an older pool that doesn't have a command
279 * history object, create it now.
280 */
281 mutex_enter(&spa->spa_history_lock);
282 if (!spa->spa_history)
283 spa_history_create_obj(spa, tx);
284 mutex_exit(&spa->spa_history_lock);
285
286 /*
287 * Get the offset of where we need to write via the bonus buffer.
288 * Update the offset when the write completes.
289 */
290 VERIFY0(dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp));
291 shpp = dbp->db_data;
292
293 dmu_buf_will_dirty(dbp, tx);
294
295 #ifdef ZFS_DEBUG
296 {
297 dmu_object_info_t doi;
298 dmu_object_info_from_db(dbp, &doi);
299 ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS);
300 }
301 #endif
302
303 fnvlist_add_uint64(nvl, ZPOOL_HIST_TIME, gethrestime_sec());
304 #ifdef _KERNEL
305 fnvlist_add_string(nvl, ZPOOL_HIST_HOST, utsname.nodename);
306 #endif
307 if (nvlist_exists(nvl, ZPOOL_HIST_CMD)) {
308 zfs_dbgmsg("command: %s",
309 fnvlist_lookup_string(nvl, ZPOOL_HIST_CMD));
310 } else if (nvlist_exists(nvl, ZPOOL_HIST_INT_NAME)) {
311 if (nvlist_exists(nvl, ZPOOL_HIST_DSNAME)) {
312 zfs_dbgmsg("txg %lld %s %s (id %llu) %s",
313 fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG),
314 fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME),
315 fnvlist_lookup_string(nvl, ZPOOL_HIST_DSNAME),
316 fnvlist_lookup_uint64(nvl, ZPOOL_HIST_DSID),
317 fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR));
318 } else {
319 zfs_dbgmsg("txg %lld %s %s",
320 fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG),
321 fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME),
322 fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR));
323 }
324 /*
325 * The history sysevent is posted only for internal history
326 * messages to show what has happened, not how it happened. For
327 * example, the following command:
328 *
329 * # zfs destroy -r tank/foo
330 *
331 * will result in one sysevent posted per dataset that is
332 * destroyed as a result of the command - which could be more
333 * than one event in total. By contrast, if the sysevent was
334 * posted as a result of the ZPOOL_HIST_CMD key being present
335 * it would result in only one sysevent being posted with the
336 * full command line arguments, requiring the consumer to know
337 * how to parse and understand zfs(8) command invocations.
338 */
339 spa_history_log_notify(spa, nvl);
340 } else if (nvlist_exists(nvl, ZPOOL_HIST_IOCTL)) {
341 zfs_dbgmsg("ioctl %s",
342 fnvlist_lookup_string(nvl, ZPOOL_HIST_IOCTL));
343 }
344
345 record_packed = fnvlist_pack(nvl, &reclen);
346
347 mutex_enter(&spa->spa_history_lock);
348
349 /* write out the packed length as little endian */
350 le_len = LE_64((uint64_t)reclen);
351 ret = spa_history_write(spa, &le_len, sizeof (le_len), shpp, tx);
352 if (!ret)
353 ret = spa_history_write(spa, record_packed, reclen, shpp, tx);
354
355 /* The first command is the create, which we keep forever */
356 if (ret == 0 && shpp->sh_pool_create_len == 0 &&
357 nvlist_exists(nvl, ZPOOL_HIST_CMD)) {
358 shpp->sh_pool_create_len = shpp->sh_bof = shpp->sh_eof;
359 }
360
361 mutex_exit(&spa->spa_history_lock);
362 fnvlist_pack_free(record_packed, reclen);
363 dmu_buf_rele(dbp, FTAG);
364 fnvlist_free(nvl);
365 }
366
367 /*
368 * Write out a history event.
369 */
370 int
spa_history_log(spa_t * spa,const char * msg)371 spa_history_log(spa_t *spa, const char *msg)
372 {
373 int err;
374 nvlist_t *nvl = fnvlist_alloc();
375
376 fnvlist_add_string(nvl, ZPOOL_HIST_CMD, msg);
377 err = spa_history_log_nvl(spa, nvl);
378 fnvlist_free(nvl);
379 return (err);
380 }
381
382 int
spa_history_log_nvl(spa_t * spa,nvlist_t * nvl)383 spa_history_log_nvl(spa_t *spa, nvlist_t *nvl)
384 {
385 int err = 0;
386 dmu_tx_t *tx;
387 nvlist_t *nvarg, *in_nvl = NULL;
388
389 if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY || !spa_writeable(spa))
390 return (SET_ERROR(EINVAL));
391
392 err = nvlist_lookup_nvlist(nvl, ZPOOL_HIST_INPUT_NVL, &in_nvl);
393 if (err == 0) {
394 (void) nvlist_remove_all(in_nvl, ZPOOL_HIDDEN_ARGS);
395 }
396
397 tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir);
398 err = dmu_tx_assign(tx, TXG_WAIT);
399 if (err) {
400 dmu_tx_abort(tx);
401 return (err);
402 }
403
404 nvarg = fnvlist_dup(nvl);
405 if (spa_history_zone() != NULL) {
406 fnvlist_add_string(nvarg, ZPOOL_HIST_ZONE,
407 spa_history_zone());
408 }
409 fnvlist_add_uint64(nvarg, ZPOOL_HIST_WHO, crgetruid(CRED()));
410
411 /* Kick this off asynchronously; errors are ignored. */
412 dsl_sync_task_nowait(spa_get_dsl(spa), spa_history_log_sync,
413 nvarg, 0, ZFS_SPACE_CHECK_NONE, tx);
414 dmu_tx_commit(tx);
415
416 /* spa_history_log_sync will free nvl */
417 return (err);
418
419 }
420
421 /*
422 * Read out the command history.
423 */
424 int
spa_history_get(spa_t * spa,uint64_t * offp,uint64_t * len,char * buf)425 spa_history_get(spa_t *spa, uint64_t *offp, uint64_t *len, char *buf)
426 {
427 objset_t *mos = spa->spa_meta_objset;
428 dmu_buf_t *dbp;
429 uint64_t read_len, phys_read_off, phys_eof;
430 uint64_t leftover = 0;
431 spa_history_phys_t *shpp;
432 int err;
433
434 /*
435 * If the command history doesn't exist (older pool),
436 * that's ok, just return ENOENT.
437 */
438 if (!spa->spa_history)
439 return (SET_ERROR(ENOENT));
440
441 /*
442 * The history is logged asynchronously, so when they request
443 * the first chunk of history, make sure everything has been
444 * synced to disk so that we get it.
445 */
446 if (*offp == 0 && spa_writeable(spa))
447 txg_wait_synced(spa_get_dsl(spa), 0);
448
449 if ((err = dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)) != 0)
450 return (err);
451 shpp = dbp->db_data;
452
453 #ifdef ZFS_DEBUG
454 {
455 dmu_object_info_t doi;
456 dmu_object_info_from_db(dbp, &doi);
457 ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS);
458 }
459 #endif
460
461 mutex_enter(&spa->spa_history_lock);
462 phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp);
463
464 if (*offp < shpp->sh_pool_create_len) {
465 /* read in just the zpool create history */
466 phys_read_off = *offp;
467 read_len = MIN(*len, shpp->sh_pool_create_len -
468 phys_read_off);
469 } else {
470 /*
471 * Need to reset passed in offset to BOF if the passed in
472 * offset has since been overwritten.
473 */
474 *offp = MAX(*offp, shpp->sh_bof);
475 phys_read_off = spa_history_log_to_phys(*offp, shpp);
476
477 /*
478 * Read up to the minimum of what the user passed down or
479 * the EOF (physical or logical). If we hit physical EOF,
480 * use 'leftover' to read from the physical BOF.
481 */
482 if (phys_read_off <= phys_eof) {
483 read_len = MIN(*len, phys_eof - phys_read_off);
484 } else {
485 read_len = MIN(*len,
486 shpp->sh_phys_max_off - phys_read_off);
487 if (phys_read_off + *len > shpp->sh_phys_max_off) {
488 leftover = MIN(*len - read_len,
489 phys_eof - shpp->sh_pool_create_len);
490 }
491 }
492 }
493
494 /* offset for consumer to use next */
495 *offp += read_len + leftover;
496
497 /* tell the consumer how much you actually read */
498 *len = read_len + leftover;
499
500 if (read_len == 0) {
501 mutex_exit(&spa->spa_history_lock);
502 dmu_buf_rele(dbp, FTAG);
503 return (0);
504 }
505
506 err = dmu_read(mos, spa->spa_history, phys_read_off, read_len, buf,
507 DMU_READ_PREFETCH);
508 if (leftover && err == 0) {
509 err = dmu_read(mos, spa->spa_history, shpp->sh_pool_create_len,
510 leftover, buf + read_len, DMU_READ_PREFETCH);
511 }
512 mutex_exit(&spa->spa_history_lock);
513
514 dmu_buf_rele(dbp, FTAG);
515 return (err);
516 }
517
518 /*
519 * The nvlist will be consumed by this call.
520 */
521 static void
log_internal(nvlist_t * nvl,const char * operation,spa_t * spa,dmu_tx_t * tx,const char * fmt,va_list adx)522 log_internal(nvlist_t *nvl, const char *operation, spa_t *spa,
523 dmu_tx_t *tx, const char *fmt, va_list adx)
524 {
525 char *msg;
526
527 /*
528 * If this is part of creating a pool, not everything is
529 * initialized yet, so don't bother logging the internal events.
530 * Likewise if the pool is not writeable.
531 */
532 if (tx->tx_txg == TXG_INITIAL || !spa_writeable(spa)) {
533 fnvlist_free(nvl);
534 return;
535 }
536
537 msg = kmem_alloc(vsnprintf(NULL, 0, fmt, adx) + 1, KM_SLEEP);
538 (void) vsprintf(msg, fmt, adx);
539 fnvlist_add_string(nvl, ZPOOL_HIST_INT_STR, msg);
540 strfree(msg);
541
542 fnvlist_add_string(nvl, ZPOOL_HIST_INT_NAME, operation);
543 fnvlist_add_uint64(nvl, ZPOOL_HIST_TXG, tx->tx_txg);
544
545 if (dmu_tx_is_syncing(tx)) {
546 spa_history_log_sync(nvl, tx);
547 } else {
548 dsl_sync_task_nowait(spa_get_dsl(spa),
549 spa_history_log_sync, nvl, 0, ZFS_SPACE_CHECK_NONE, tx);
550 }
551 /* spa_history_log_sync() will free nvl */
552 }
553
554 void
spa_history_log_internal(spa_t * spa,const char * operation,dmu_tx_t * tx,const char * fmt,...)555 spa_history_log_internal(spa_t *spa, const char *operation,
556 dmu_tx_t *tx, const char *fmt, ...)
557 {
558 dmu_tx_t *htx = tx;
559 va_list adx;
560
561 /* create a tx if we didn't get one */
562 if (tx == NULL) {
563 htx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir);
564 if (dmu_tx_assign(htx, TXG_WAIT) != 0) {
565 dmu_tx_abort(htx);
566 return;
567 }
568 }
569
570 va_start(adx, fmt);
571 log_internal(fnvlist_alloc(), operation, spa, htx, fmt, adx);
572 va_end(adx);
573
574 /* if we didn't get a tx from the caller, commit the one we made */
575 if (tx == NULL)
576 dmu_tx_commit(htx);
577 }
578
579 void
spa_history_log_internal_ds(dsl_dataset_t * ds,const char * operation,dmu_tx_t * tx,const char * fmt,...)580 spa_history_log_internal_ds(dsl_dataset_t *ds, const char *operation,
581 dmu_tx_t *tx, const char *fmt, ...)
582 {
583 va_list adx;
584 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
585 nvlist_t *nvl = fnvlist_alloc();
586
587 ASSERT(tx != NULL);
588
589 dsl_dataset_name(ds, namebuf);
590 fnvlist_add_string(nvl, ZPOOL_HIST_DSNAME, namebuf);
591 fnvlist_add_uint64(nvl, ZPOOL_HIST_DSID, ds->ds_object);
592
593 va_start(adx, fmt);
594 log_internal(nvl, operation, dsl_dataset_get_spa(ds), tx, fmt, adx);
595 va_end(adx);
596 }
597
598 void
spa_history_log_internal_dd(dsl_dir_t * dd,const char * operation,dmu_tx_t * tx,const char * fmt,...)599 spa_history_log_internal_dd(dsl_dir_t *dd, const char *operation,
600 dmu_tx_t *tx, const char *fmt, ...)
601 {
602 va_list adx;
603 char namebuf[ZFS_MAX_DATASET_NAME_LEN];
604 nvlist_t *nvl = fnvlist_alloc();
605
606 ASSERT(tx != NULL);
607
608 dsl_dir_name(dd, namebuf);
609 fnvlist_add_string(nvl, ZPOOL_HIST_DSNAME, namebuf);
610 fnvlist_add_uint64(nvl, ZPOOL_HIST_DSID,
611 dsl_dir_phys(dd)->dd_head_dataset_obj);
612
613 va_start(adx, fmt);
614 log_internal(nvl, operation, dd->dd_pool->dp_spa, tx, fmt, adx);
615 va_end(adx);
616 }
617
618 void
spa_history_log_version(spa_t * spa,const char * operation)619 spa_history_log_version(spa_t *spa, const char *operation)
620 {
621 spa_history_log_internal(spa, operation, NULL,
622 "pool version %llu; software version %llu/%llu; uts %s %s %s %s",
623 (u_longlong_t)spa_version(spa), SPA_VERSION, ZPL_VERSION,
624 utsname.nodename, utsname.release, utsname.version,
625 utsname.machine);
626 }
627