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 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2015 by Delphix. All rights reserved.
24 * Copyright (c) 2014 Integros [integros.com]
25 */
26
27 #include <sys/types.h>
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/sysmacros.h>
31 #include <sys/cmn_err.h>
32 #include <sys/kmem.h>
33 #include <sys/thread.h>
34 #include <sys/file.h>
35 #include <sys/vfs.h>
36 #include <sys/zfs_znode.h>
37 #include <sys/zfs_dir.h>
38 #include <sys/zil.h>
39 #include <sys/zil_impl.h>
40 #include <sys/byteorder.h>
41 #include <sys/policy.h>
42 #include <sys/stat.h>
43 #include <sys/mode.h>
44 #include <sys/acl.h>
45 #include <sys/dmu.h>
46 #include <sys/spa.h>
47 #include <sys/zfs_fuid.h>
48 #include <sys/ddi.h>
49 #include <sys/dsl_dataset.h>
50
51 /*
52 * These zfs_log_* functions must be called within a dmu tx, in one
53 * of 2 contexts depending on zilog->z_replay:
54 *
55 * Non replay mode
56 * ---------------
57 * We need to record the transaction so that if it is committed to
58 * the Intent Log then it can be replayed. An intent log transaction
59 * structure (itx_t) is allocated and all the information necessary to
60 * possibly replay the transaction is saved in it. The itx is then assigned
61 * a sequence number and inserted in the in-memory list anchored in the zilog.
62 *
63 * Replay mode
64 * -----------
65 * We need to mark the intent log record as replayed in the log header.
66 * This is done in the same transaction as the replay so that they
67 * commit atomically.
68 */
69
70 int
71 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap)
72 {
73 int isxvattr = (vap->va_mask & AT_XVATTR);
74 switch (type) {
75 case Z_FILE:
76 if (vsecp == NULL && !isxvattr)
77 return (TX_CREATE);
78 if (vsecp && isxvattr)
79 return (TX_CREATE_ACL_ATTR);
80 if (vsecp)
81 return (TX_CREATE_ACL);
82 else
83 return (TX_CREATE_ATTR);
84 /*NOTREACHED*/
85 case Z_DIR:
86 if (vsecp == NULL && !isxvattr)
87 return (TX_MKDIR);
88 if (vsecp && isxvattr)
89 return (TX_MKDIR_ACL_ATTR);
90 if (vsecp)
91 return (TX_MKDIR_ACL);
92 else
93 return (TX_MKDIR_ATTR);
94 case Z_XATTRDIR:
95 return (TX_MKXATTR);
96 }
97 ASSERT(0);
98 return (TX_MAX_TYPE);
99 }
100
101 /*
102 * build up the log data necessary for logging xvattr_t
103 * First lr_attr_t is initialized. following the lr_attr_t
104 * is the mapsize and attribute bitmap copied from the xvattr_t.
105 * Following the bitmap and bitmapsize two 64 bit words are reserved
106 * for the create time which may be set. Following the create time
107 * records a single 64 bit integer which has the bits to set on
108 * replay for the xvattr.
109 */
110 static void
111 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
112 {
113 uint32_t *bitmap;
114 uint64_t *attrs;
115 uint64_t *crtime;
116 xoptattr_t *xoap;
117 void *scanstamp;
118 int i;
119
120 xoap = xva_getxoptattr(xvap);
121 ASSERT(xoap);
122
123 lrattr->lr_attr_masksize = xvap->xva_mapsize;
124 bitmap = &lrattr->lr_attr_bitmap;
125 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) {
126 *bitmap = xvap->xva_reqattrmap[i];
127 }
128
129 /* Now pack the attributes up in a single uint64_t */
130 attrs = (uint64_t *)bitmap;
131 crtime = attrs + 1;
132 scanstamp = (caddr_t)(crtime + 2);
133 *attrs = 0;
134 if (XVA_ISSET_REQ(xvap, XAT_READONLY))
135 *attrs |= (xoap->xoa_readonly == 0) ? 0 :
136 XAT0_READONLY;
137 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
138 *attrs |= (xoap->xoa_hidden == 0) ? 0 :
139 XAT0_HIDDEN;
140 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
141 *attrs |= (xoap->xoa_system == 0) ? 0 :
142 XAT0_SYSTEM;
143 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
144 *attrs |= (xoap->xoa_archive == 0) ? 0 :
145 XAT0_ARCHIVE;
146 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
147 *attrs |= (xoap->xoa_immutable == 0) ? 0 :
148 XAT0_IMMUTABLE;
149 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
150 *attrs |= (xoap->xoa_nounlink == 0) ? 0 :
151 XAT0_NOUNLINK;
152 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
153 *attrs |= (xoap->xoa_appendonly == 0) ? 0 :
154 XAT0_APPENDONLY;
155 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
156 *attrs |= (xoap->xoa_opaque == 0) ? 0 :
157 XAT0_APPENDONLY;
158 if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
159 *attrs |= (xoap->xoa_nodump == 0) ? 0 :
160 XAT0_NODUMP;
161 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
162 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 :
163 XAT0_AV_QUARANTINED;
164 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
165 *attrs |= (xoap->xoa_av_modified == 0) ? 0 :
166 XAT0_AV_MODIFIED;
167 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
168 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime);
169 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
170 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
171 if (XVA_ISSET_REQ(xvap, XAT_REPARSE))
172 *attrs |= (xoap->xoa_reparse == 0) ? 0 :
173 XAT0_REPARSE;
174 if (XVA_ISSET_REQ(xvap, XAT_OFFLINE))
175 *attrs |= (xoap->xoa_offline == 0) ? 0 :
176 XAT0_OFFLINE;
177 if (XVA_ISSET_REQ(xvap, XAT_SPARSE))
178 *attrs |= (xoap->xoa_sparse == 0) ? 0 :
179 XAT0_SPARSE;
180 }
181
182 static void *
183 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
184 {
185 zfs_fuid_t *zfuid;
186 uint64_t *fuidloc = start;
187
188 /* First copy in the ACE FUIDs */
189 for (zfuid = list_head(&fuidp->z_fuids); zfuid;
190 zfuid = list_next(&fuidp->z_fuids, zfuid)) {
191 *fuidloc++ = zfuid->z_logfuid;
192 }
193 return (fuidloc);
194 }
195
196
197 static void *
198 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
199 {
200 zfs_fuid_domain_t *zdomain;
201
202 /* now copy in the domain info, if any */
203 if (fuidp->z_domain_str_sz != 0) {
204 for (zdomain = list_head(&fuidp->z_domains); zdomain;
205 zdomain = list_next(&fuidp->z_domains, zdomain)) {
206 bcopy((void *)zdomain->z_domain, start,
207 strlen(zdomain->z_domain) + 1);
208 start = (caddr_t)start +
209 strlen(zdomain->z_domain) + 1;
210 }
211 }
212 return (start);
213 }
214
215 /*
216 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and
217 * TK_MKXATTR transactions.
218 *
219 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID
220 * domain information appended prior to the name. In this case the
221 * uid/gid in the log record will be a log centric FUID.
222 *
223 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that
224 * may contain attributes, ACL and optional fuid information.
225 *
226 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify
227 * and ACL and normal users/groups in the ACEs.
228 *
229 * There may be an optional xvattr attribute information similar
230 * to zfs_log_setattr.
231 *
232 * Also, after the file name "domain" strings may be appended.
233 */
234 void
235 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
236 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp,
237 zfs_fuid_info_t *fuidp, vattr_t *vap)
238 {
239 itx_t *itx;
240 lr_create_t *lr;
241 lr_acl_create_t *lracl;
242 size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0;
243 size_t xvatsize = 0;
244 size_t txsize;
245 xvattr_t *xvap = (xvattr_t *)vap;
246 void *end;
247 size_t lrsize;
248 size_t namesize = strlen(name) + 1;
249 size_t fuidsz = 0;
250
251 if (zil_replaying(zilog, tx))
252 return;
253
254 /*
255 * If we have FUIDs present then add in space for
256 * domains and ACE fuid's if any.
257 */
258 if (fuidp) {
259 fuidsz += fuidp->z_domain_str_sz;
260 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
261 }
262
263 if (vap->va_mask & AT_XVATTR)
264 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
265
266 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
267 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
268 (int)txtype == TX_MKXATTR) {
269 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
270 lrsize = sizeof (*lr);
271 } else {
272 txsize =
273 sizeof (lr_acl_create_t) + namesize + fuidsz +
274 ZIL_ACE_LENGTH(aclsize) + xvatsize;
275 lrsize = sizeof (lr_acl_create_t);
276 }
277
278 itx = zil_itx_create(txtype, txsize);
279
280 lr = (lr_create_t *)&itx->itx_lr;
281 lr->lr_doid = dzp->z_id;
282 lr->lr_foid = zp->z_id;
283 lr->lr_mode = zp->z_mode;
284 if (!IS_EPHEMERAL(zp->z_uid)) {
285 lr->lr_uid = (uint64_t)zp->z_uid;
286 } else {
287 lr->lr_uid = fuidp->z_fuid_owner;
288 }
289 if (!IS_EPHEMERAL(zp->z_gid)) {
290 lr->lr_gid = (uint64_t)zp->z_gid;
291 } else {
292 lr->lr_gid = fuidp->z_fuid_group;
293 }
294 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
295 sizeof (uint64_t));
296 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
297 lr->lr_crtime, sizeof (uint64_t) * 2);
298
299 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev,
300 sizeof (lr->lr_rdev)) != 0)
301 lr->lr_rdev = 0;
302
303 /*
304 * Fill in xvattr info if any
305 */
306 if (vap->va_mask & AT_XVATTR) {
307 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
308 end = (caddr_t)lr + lrsize + xvatsize;
309 } else {
310 end = (caddr_t)lr + lrsize;
311 }
312
313 /* Now fill in any ACL info */
314
315 if (vsecp) {
316 lracl = (lr_acl_create_t *)&itx->itx_lr;
317 lracl->lr_aclcnt = vsecp->vsa_aclcnt;
318 lracl->lr_acl_bytes = aclsize;
319 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
320 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
321 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
322 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
323 else
324 lracl->lr_acl_flags = 0;
325
326 bcopy(vsecp->vsa_aclentp, end, aclsize);
327 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
328 }
329
330 /* drop in FUID info */
331 if (fuidp) {
332 end = zfs_log_fuid_ids(fuidp, end);
333 end = zfs_log_fuid_domains(fuidp, end);
334 }
335 /*
336 * Now place file name in log record
337 */
338 bcopy(name, end, namesize);
339
340 zil_itx_assign(zilog, itx, tx);
341 }
342
343 /*
344 * Handles both TX_REMOVE and TX_RMDIR transactions.
345 */
346 void
347 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
348 znode_t *dzp, char *name, uint64_t foid)
349 {
350 itx_t *itx;
351 lr_remove_t *lr;
352 size_t namesize = strlen(name) + 1;
353
354 if (zil_replaying(zilog, tx))
355 return;
356
357 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
358 lr = (lr_remove_t *)&itx->itx_lr;
359 lr->lr_doid = dzp->z_id;
360 bcopy(name, (char *)(lr + 1), namesize);
361
362 itx->itx_oid = foid;
363
364 zil_itx_assign(zilog, itx, tx);
365 }
366
367 /*
368 * Handles TX_LINK transactions.
369 */
370 void
371 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
372 znode_t *dzp, znode_t *zp, char *name)
373 {
374 itx_t *itx;
375 lr_link_t *lr;
376 size_t namesize = strlen(name) + 1;
377
378 if (zil_replaying(zilog, tx))
379 return;
380
381 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
382 lr = (lr_link_t *)&itx->itx_lr;
383 lr->lr_doid = dzp->z_id;
384 lr->lr_link_obj = zp->z_id;
385 bcopy(name, (char *)(lr + 1), namesize);
386
387 zil_itx_assign(zilog, itx, tx);
388 }
389
390 /*
391 * Handles TX_SYMLINK transactions.
392 */
393 void
394 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
395 znode_t *dzp, znode_t *zp, char *name, char *link)
396 {
397 itx_t *itx;
398 lr_create_t *lr;
399 size_t namesize = strlen(name) + 1;
400 size_t linksize = strlen(link) + 1;
401
402 if (zil_replaying(zilog, tx))
403 return;
404
405 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize);
406 lr = (lr_create_t *)&itx->itx_lr;
407 lr->lr_doid = dzp->z_id;
408 lr->lr_foid = zp->z_id;
409 lr->lr_uid = zp->z_uid;
410 lr->lr_gid = zp->z_gid;
411 lr->lr_mode = zp->z_mode;
412 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
413 sizeof (uint64_t));
414 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
415 lr->lr_crtime, sizeof (uint64_t) * 2);
416 bcopy(name, (char *)(lr + 1), namesize);
417 bcopy(link, (char *)(lr + 1) + namesize, linksize);
418
419 zil_itx_assign(zilog, itx, tx);
420 }
421
422 /*
423 * Handles TX_RENAME transactions.
424 */
425 void
426 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
427 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp)
428 {
429 itx_t *itx;
430 lr_rename_t *lr;
431 size_t snamesize = strlen(sname) + 1;
432 size_t dnamesize = strlen(dname) + 1;
433
434 if (zil_replaying(zilog, tx))
435 return;
436
437 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize);
438 lr = (lr_rename_t *)&itx->itx_lr;
439 lr->lr_sdoid = sdzp->z_id;
440 lr->lr_tdoid = tdzp->z_id;
441 bcopy(sname, (char *)(lr + 1), snamesize);
442 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize);
443 itx->itx_oid = szp->z_id;
444
445 zil_itx_assign(zilog, itx, tx);
446 }
447
448 /*
449 * Handles TX_WRITE transactions.
450 */
451 ssize_t zfs_immediate_write_sz = 32768;
452
453 void
454 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
455 znode_t *zp, offset_t off, ssize_t resid, int ioflag)
456 {
457 uint32_t blocksize = zp->z_blksz;
458 itx_wr_state_t write_state;
459 uintptr_t fsync_cnt;
460
461 if (zil_replaying(zilog, tx) || zp->z_unlinked)
462 return;
463
464 if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
465 write_state = WR_INDIRECT;
466 else if (!spa_has_slogs(zilog->zl_spa) &&
467 resid >= zfs_immediate_write_sz)
468 write_state = WR_INDIRECT;
469 else if (ioflag & (FSYNC | FDSYNC))
470 write_state = WR_COPIED;
471 else
472 write_state = WR_NEED_COPY;
473
474 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
475 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
476 }
477
478 while (resid) {
479 itx_t *itx;
480 lr_write_t *lr;
481 itx_wr_state_t wr_state = write_state;
482 ssize_t len = resid;
483
484 if (wr_state == WR_COPIED && resid > ZIL_MAX_COPIED_DATA)
485 wr_state = WR_NEED_COPY;
486 else if (wr_state == WR_INDIRECT)
487 len = MIN(blocksize - P2PHASE(off, blocksize), resid);
488
489 itx = zil_itx_create(txtype, sizeof (*lr) +
490 (wr_state == WR_COPIED ? len : 0));
491 lr = (lr_write_t *)&itx->itx_lr;
492 if (wr_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
493 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) {
494 zil_itx_destroy(itx);
495 itx = zil_itx_create(txtype, sizeof (*lr));
496 lr = (lr_write_t *)&itx->itx_lr;
497 wr_state = WR_NEED_COPY;
498 }
499
500 itx->itx_wr_state = wr_state;
501 lr->lr_foid = zp->z_id;
502 lr->lr_offset = off;
503 lr->lr_length = len;
504 lr->lr_blkoff = 0;
505 BP_ZERO(&lr->lr_blkptr);
506
507 itx->itx_private = zp->z_zfsvfs;
508
509 if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) &&
510 (fsync_cnt == 0))
511 itx->itx_sync = B_FALSE;
512
513 zil_itx_assign(zilog, itx, tx);
514
515 off += len;
516 resid -= len;
517 }
518 }
519
520 /*
521 * Handles TX_TRUNCATE transactions.
522 */
523 void
524 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
525 znode_t *zp, uint64_t off, uint64_t len)
526 {
527 itx_t *itx;
528 lr_truncate_t *lr;
529
530 if (zil_replaying(zilog, tx) || zp->z_unlinked)
531 return;
532
533 itx = zil_itx_create(txtype, sizeof (*lr));
534 lr = (lr_truncate_t *)&itx->itx_lr;
535 lr->lr_foid = zp->z_id;
536 lr->lr_offset = off;
537 lr->lr_length = len;
538
539 itx->itx_sync = (zp->z_sync_cnt != 0);
540 zil_itx_assign(zilog, itx, tx);
541 }
542
543 /*
544 * Handles TX_SETATTR transactions.
545 */
546 void
547 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
548 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp)
549 {
550 itx_t *itx;
551 lr_setattr_t *lr;
552 xvattr_t *xvap = (xvattr_t *)vap;
553 size_t recsize = sizeof (lr_setattr_t);
554 void *start;
555
556 if (zil_replaying(zilog, tx) || zp->z_unlinked)
557 return;
558
559 /*
560 * If XVATTR set, then log record size needs to allow
561 * for lr_attr_t + xvattr mask, mapsize and create time
562 * plus actual attribute values
563 */
564 if (vap->va_mask & AT_XVATTR)
565 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize);
566
567 if (fuidp)
568 recsize += fuidp->z_domain_str_sz;
569
570 itx = zil_itx_create(txtype, recsize);
571 lr = (lr_setattr_t *)&itx->itx_lr;
572 lr->lr_foid = zp->z_id;
573 lr->lr_mask = (uint64_t)mask_applied;
574 lr->lr_mode = (uint64_t)vap->va_mode;
575 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid))
576 lr->lr_uid = fuidp->z_fuid_owner;
577 else
578 lr->lr_uid = (uint64_t)vap->va_uid;
579
580 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid))
581 lr->lr_gid = fuidp->z_fuid_group;
582 else
583 lr->lr_gid = (uint64_t)vap->va_gid;
584
585 lr->lr_size = (uint64_t)vap->va_size;
586 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime);
587 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime);
588 start = (lr_setattr_t *)(lr + 1);
589 if (vap->va_mask & AT_XVATTR) {
590 zfs_log_xvattr((lr_attr_t *)start, xvap);
591 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize);
592 }
593
594 /*
595 * Now stick on domain information if any on end
596 */
597
598 if (fuidp)
599 (void) zfs_log_fuid_domains(fuidp, start);
600
601 itx->itx_sync = (zp->z_sync_cnt != 0);
602 zil_itx_assign(zilog, itx, tx);
603 }
604
605 /*
606 * Handles TX_ACL transactions.
607 */
608 void
609 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
610 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp)
611 {
612 itx_t *itx;
613 lr_acl_v0_t *lrv0;
614 lr_acl_t *lr;
615 int txtype;
616 int lrsize;
617 size_t txsize;
618 size_t aclbytes = vsecp->vsa_aclentsz;
619
620 if (zil_replaying(zilog, tx) || zp->z_unlinked)
621 return;
622
623 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ?
624 TX_ACL_V0 : TX_ACL;
625
626 if (txtype == TX_ACL)
627 lrsize = sizeof (*lr);
628 else
629 lrsize = sizeof (*lrv0);
630
631 txsize = lrsize +
632 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) +
633 (fuidp ? fuidp->z_domain_str_sz : 0) +
634 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0);
635
636 itx = zil_itx_create(txtype, txsize);
637
638 lr = (lr_acl_t *)&itx->itx_lr;
639 lr->lr_foid = zp->z_id;
640 if (txtype == TX_ACL) {
641 lr->lr_acl_bytes = aclbytes;
642 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
643 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
644 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS)
645 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
646 else
647 lr->lr_acl_flags = 0;
648 }
649 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt;
650
651 if (txtype == TX_ACL_V0) {
652 lrv0 = (lr_acl_v0_t *)lr;
653 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes);
654 } else {
655 void *start = (ace_t *)(lr + 1);
656
657 bcopy(vsecp->vsa_aclentp, start, aclbytes);
658
659 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes);
660
661 if (fuidp) {
662 start = zfs_log_fuid_ids(fuidp, start);
663 (void) zfs_log_fuid_domains(fuidp, start);
664 }
665 }
666
667 itx->itx_sync = (zp->z_sync_cnt != 0);
668 zil_itx_assign(zilog, itx, tx);
669 }