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 */
24
25 #include <sys/types.h>
26 #include <sys/param.h>
27 #include <sys/systm.h>
28 #include <sys/sysmacros.h>
29 #include <sys/cmn_err.h>
30 #include <sys/kmem.h>
31 #include <sys/thread.h>
32 #include <sys/file.h>
33 #include <sys/vfs.h>
34 #include <sys/zfs_znode.h>
35 #include <sys/zfs_dir.h>
36 #include <sys/zil.h>
37 #include <sys/zil_impl.h>
38 #include <sys/byteorder.h>
39 #include <sys/policy.h>
40 #include <sys/stat.h>
41 #include <sys/mode.h>
42 #include <sys/acl.h>
43 #include <sys/dmu.h>
44 #include <sys/spa.h>
45 #include <sys/zfs_fuid.h>
46 #include <sys/ddi.h>
47 #include <sys/dsl_dataset.h>
48
49 /*
50 * These zfs_log_* functions must be called within a dmu tx, in one
51 * of 2 contexts depending on zilog->z_replay:
52 *
53 * Non replay mode
54 * ---------------
55 * We need to record the transaction so that if it is committed to
56 * the Intent Log then it can be replayed. An intent log transaction
57 * structure (itx_t) is allocated and all the information necessary to
58 * possibly replay the transaction is saved in it. The itx is then assigned
59 * a sequence number and inserted in the in-memory list anchored in the zilog.
60 *
61 * Replay mode
62 * -----------
63 * We need to mark the intent log record as replayed in the log header.
64 * This is done in the same transaction as the replay so that they
65 * commit atomically.
66 */
67
68 int
69 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap)
70 {
71 int isxvattr = (vap->va_mask & AT_XVATTR);
72 switch (type) {
73 case Z_FILE:
74 if (vsecp == NULL && !isxvattr)
75 return (TX_CREATE);
76 if (vsecp && isxvattr)
77 return (TX_CREATE_ACL_ATTR);
78 if (vsecp)
79 return (TX_CREATE_ACL);
80 else
81 return (TX_CREATE_ATTR);
82 /*NOTREACHED*/
83 case Z_DIR:
84 if (vsecp == NULL && !isxvattr)
85 return (TX_MKDIR);
86 if (vsecp && isxvattr)
87 return (TX_MKDIR_ACL_ATTR);
88 if (vsecp)
89 return (TX_MKDIR_ACL);
90 else
91 return (TX_MKDIR_ATTR);
92 case Z_XATTRDIR:
93 return (TX_MKXATTR);
94 }
95 ASSERT(0);
96 return (TX_MAX_TYPE);
97 }
98
99 /*
100 * build up the log data necessary for logging xvattr_t
101 * First lr_attr_t is initialized. following the lr_attr_t
102 * is the mapsize and attribute bitmap copied from the xvattr_t.
103 * Following the bitmap and bitmapsize two 64 bit words are reserved
104 * for the create time which may be set. Following the create time
105 * records a single 64 bit integer which has the bits to set on
106 * replay for the xvattr.
107 */
108 static void
109 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
110 {
111 uint32_t *bitmap;
112 uint64_t *attrs;
113 uint64_t *crtime;
114 xoptattr_t *xoap;
115 void *scanstamp;
116 int i;
117
118 xoap = xva_getxoptattr(xvap);
119 ASSERT(xoap);
120
121 lrattr->lr_attr_masksize = xvap->xva_mapsize;
122 bitmap = &lrattr->lr_attr_bitmap;
123 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) {
124 *bitmap = xvap->xva_reqattrmap[i];
125 }
126
127 /* Now pack the attributes up in a single uint64_t */
128 attrs = (uint64_t *)bitmap;
129 crtime = attrs + 1;
130 scanstamp = (caddr_t)(crtime + 2);
131 *attrs = 0;
132 if (XVA_ISSET_REQ(xvap, XAT_READONLY))
133 *attrs |= (xoap->xoa_readonly == 0) ? 0 :
134 XAT0_READONLY;
135 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
136 *attrs |= (xoap->xoa_hidden == 0) ? 0 :
137 XAT0_HIDDEN;
138 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
139 *attrs |= (xoap->xoa_system == 0) ? 0 :
140 XAT0_SYSTEM;
141 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
142 *attrs |= (xoap->xoa_archive == 0) ? 0 :
143 XAT0_ARCHIVE;
144 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
145 *attrs |= (xoap->xoa_immutable == 0) ? 0 :
146 XAT0_IMMUTABLE;
147 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
148 *attrs |= (xoap->xoa_nounlink == 0) ? 0 :
149 XAT0_NOUNLINK;
150 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
151 *attrs |= (xoap->xoa_appendonly == 0) ? 0 :
152 XAT0_APPENDONLY;
153 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
154 *attrs |= (xoap->xoa_opaque == 0) ? 0 :
155 XAT0_APPENDONLY;
156 if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
157 *attrs |= (xoap->xoa_nodump == 0) ? 0 :
158 XAT0_NODUMP;
159 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
160 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 :
161 XAT0_AV_QUARANTINED;
162 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
163 *attrs |= (xoap->xoa_av_modified == 0) ? 0 :
164 XAT0_AV_MODIFIED;
165 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
166 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime);
167 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
168 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
169 if (XVA_ISSET_REQ(xvap, XAT_REPARSE))
170 *attrs |= (xoap->xoa_reparse == 0) ? 0 :
171 XAT0_REPARSE;
172 if (XVA_ISSET_REQ(xvap, XAT_OFFLINE))
173 *attrs |= (xoap->xoa_offline == 0) ? 0 :
174 XAT0_OFFLINE;
175 if (XVA_ISSET_REQ(xvap, XAT_SPARSE))
176 *attrs |= (xoap->xoa_sparse == 0) ? 0 :
177 XAT0_SPARSE;
178 }
179
180 static void *
181 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
182 {
183 zfs_fuid_t *zfuid;
184 uint64_t *fuidloc = start;
185
186 /* First copy in the ACE FUIDs */
187 for (zfuid = list_head(&fuidp->z_fuids); zfuid;
188 zfuid = list_next(&fuidp->z_fuids, zfuid)) {
189 *fuidloc++ = zfuid->z_logfuid;
190 }
191 return (fuidloc);
192 }
193
194
195 static void *
196 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
197 {
198 zfs_fuid_domain_t *zdomain;
199
200 /* now copy in the domain info, if any */
201 if (fuidp->z_domain_str_sz != 0) {
202 for (zdomain = list_head(&fuidp->z_domains); zdomain;
203 zdomain = list_next(&fuidp->z_domains, zdomain)) {
204 bcopy((void *)zdomain->z_domain, start,
205 strlen(zdomain->z_domain) + 1);
206 start = (caddr_t)start +
207 strlen(zdomain->z_domain) + 1;
208 }
209 }
210 return (start);
211 }
212
213 /*
214 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and
215 * TK_MKXATTR transactions.
216 *
217 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID
218 * domain information appended prior to the name. In this case the
219 * uid/gid in the log record will be a log centric FUID.
220 *
221 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that
222 * may contain attributes, ACL and optional fuid information.
223 *
224 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify
225 * and ACL and normal users/groups in the ACEs.
226 *
227 * There may be an optional xvattr attribute information similar
228 * to zfs_log_setattr.
229 *
230 * Also, after the file name "domain" strings may be appended.
231 */
232 void
233 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
234 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp,
235 zfs_fuid_info_t *fuidp, vattr_t *vap)
236 {
237 itx_t *itx;
238 lr_create_t *lr;
239 lr_acl_create_t *lracl;
240 size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0;
241 size_t xvatsize = 0;
242 size_t txsize;
243 xvattr_t *xvap = (xvattr_t *)vap;
244 void *end;
245 size_t lrsize;
246 size_t namesize = strlen(name) + 1;
247 size_t fuidsz = 0;
248
249 if (zil_replaying(zilog, tx))
250 return;
251
252 /*
253 * If we have FUIDs present then add in space for
254 * domains and ACE fuid's if any.
255 */
256 if (fuidp) {
257 fuidsz += fuidp->z_domain_str_sz;
258 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
259 }
260
261 if (vap->va_mask & AT_XVATTR)
262 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
263
264 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
265 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
266 (int)txtype == TX_MKXATTR) {
267 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
268 lrsize = sizeof (*lr);
269 } else {
270 txsize =
271 sizeof (lr_acl_create_t) + namesize + fuidsz +
272 ZIL_ACE_LENGTH(aclsize) + xvatsize;
273 lrsize = sizeof (lr_acl_create_t);
274 }
275
276 itx = zil_itx_create(txtype, txsize);
277
278 lr = (lr_create_t *)&itx->itx_lr;
279 lr->lr_doid = dzp->z_id;
280 lr->lr_foid = zp->z_id;
281 lr->lr_mode = zp->z_mode;
282 if (!IS_EPHEMERAL(zp->z_uid)) {
283 lr->lr_uid = (uint64_t)zp->z_uid;
284 } else {
285 lr->lr_uid = fuidp->z_fuid_owner;
286 }
287 if (!IS_EPHEMERAL(zp->z_gid)) {
288 lr->lr_gid = (uint64_t)zp->z_gid;
289 } else {
290 lr->lr_gid = fuidp->z_fuid_group;
291 }
292 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
293 sizeof (uint64_t));
294 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
295 lr->lr_crtime, sizeof (uint64_t) * 2);
296
297 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev,
298 sizeof (lr->lr_rdev)) != 0)
299 lr->lr_rdev = 0;
300
301 /*
302 * Fill in xvattr info if any
303 */
304 if (vap->va_mask & AT_XVATTR) {
305 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
306 end = (caddr_t)lr + lrsize + xvatsize;
307 } else {
308 end = (caddr_t)lr + lrsize;
309 }
310
311 /* Now fill in any ACL info */
312
313 if (vsecp) {
314 lracl = (lr_acl_create_t *)&itx->itx_lr;
315 lracl->lr_aclcnt = vsecp->vsa_aclcnt;
316 lracl->lr_acl_bytes = aclsize;
317 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
318 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
319 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
320 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
321 else
322 lracl->lr_acl_flags = 0;
323
324 bcopy(vsecp->vsa_aclentp, end, aclsize);
325 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
326 }
327
328 /* drop in FUID info */
329 if (fuidp) {
330 end = zfs_log_fuid_ids(fuidp, end);
331 end = zfs_log_fuid_domains(fuidp, end);
332 }
333 /*
334 * Now place file name in log record
335 */
336 bcopy(name, end, namesize);
337
338 zil_itx_assign(zilog, itx, tx);
339 }
340
341 /*
342 * Handles both TX_REMOVE and TX_RMDIR transactions.
343 */
344 void
345 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
346 znode_t *dzp, char *name, uint64_t foid)
347 {
348 itx_t *itx;
349 lr_remove_t *lr;
350 size_t namesize = strlen(name) + 1;
351
352 if (zil_replaying(zilog, tx))
353 return;
354
355 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
356 lr = (lr_remove_t *)&itx->itx_lr;
357 lr->lr_doid = dzp->z_id;
358 bcopy(name, (char *)(lr + 1), namesize);
359
360 itx->itx_oid = foid;
361
362 zil_itx_assign(zilog, itx, tx);
363 }
364
365 /*
366 * Handles TX_LINK transactions.
367 */
368 void
369 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
370 znode_t *dzp, znode_t *zp, char *name)
371 {
372 itx_t *itx;
373 lr_link_t *lr;
374 size_t namesize = strlen(name) + 1;
375
376 if (zil_replaying(zilog, tx))
377 return;
378
379 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
380 lr = (lr_link_t *)&itx->itx_lr;
381 lr->lr_doid = dzp->z_id;
382 lr->lr_link_obj = zp->z_id;
383 bcopy(name, (char *)(lr + 1), namesize);
384
385 zil_itx_assign(zilog, itx, tx);
386 }
387
388 /*
389 * Handles TX_SYMLINK transactions.
390 */
391 void
392 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
393 znode_t *dzp, znode_t *zp, char *name, char *link)
394 {
395 itx_t *itx;
396 lr_create_t *lr;
397 size_t namesize = strlen(name) + 1;
398 size_t linksize = strlen(link) + 1;
399
400 if (zil_replaying(zilog, tx))
401 return;
402
403 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize);
404 lr = (lr_create_t *)&itx->itx_lr;
405 lr->lr_doid = dzp->z_id;
406 lr->lr_foid = zp->z_id;
407 lr->lr_uid = zp->z_uid;
408 lr->lr_gid = zp->z_gid;
409 lr->lr_mode = zp->z_mode;
410 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
411 sizeof (uint64_t));
412 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
413 lr->lr_crtime, sizeof (uint64_t) * 2);
414 bcopy(name, (char *)(lr + 1), namesize);
415 bcopy(link, (char *)(lr + 1) + namesize, linksize);
416
417 zil_itx_assign(zilog, itx, tx);
418 }
419
420 /*
421 * Handles TX_RENAME transactions.
422 */
423 void
424 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
425 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp)
426 {
427 itx_t *itx;
428 lr_rename_t *lr;
429 size_t snamesize = strlen(sname) + 1;
430 size_t dnamesize = strlen(dname) + 1;
431
432 if (zil_replaying(zilog, tx))
433 return;
434
435 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize);
436 lr = (lr_rename_t *)&itx->itx_lr;
437 lr->lr_sdoid = sdzp->z_id;
438 lr->lr_tdoid = tdzp->z_id;
439 bcopy(sname, (char *)(lr + 1), snamesize);
440 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize);
441 itx->itx_oid = szp->z_id;
442
443 zil_itx_assign(zilog, itx, tx);
444 }
445
446 /*
447 * Handles TX_WRITE transactions.
448 */
449 ssize_t zfs_immediate_write_sz = 32768;
450
451 void
452 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
453 znode_t *zp, offset_t off, ssize_t resid, int ioflag)
454 {
455 itx_wr_state_t write_state;
456 boolean_t slogging;
457 uintptr_t fsync_cnt;
458 ssize_t immediate_write_sz;
459
460 if (zil_replaying(zilog, tx) || zp->z_unlinked)
461 return;
462
463 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
464 ? 0 : zfs_immediate_write_sz;
465
466 slogging = spa_has_slogs(zilog->zl_spa) &&
467 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY);
468 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz)
469 write_state = WR_INDIRECT;
470 else if (ioflag & (FSYNC | FDSYNC))
471 write_state = WR_COPIED;
472 else
473 write_state = WR_NEED_COPY;
474
475 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
476 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
477 }
478
479 while (resid) {
480 itx_t *itx;
481 lr_write_t *lr;
482 ssize_t len;
483
484 /*
485 * If the write would overflow the largest block then split it.
486 */
487 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA)
488 len = SPA_MAXBLOCKSIZE >> 1;
489 else
490 len = resid;
491
492 itx = zil_itx_create(txtype, sizeof (*lr) +
493 (write_state == WR_COPIED ? len : 0));
494 lr = (lr_write_t *)&itx->itx_lr;
495 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
496 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) {
497 zil_itx_destroy(itx);
498 itx = zil_itx_create(txtype, sizeof (*lr));
499 lr = (lr_write_t *)&itx->itx_lr;
500 write_state = WR_NEED_COPY;
501 }
502
503 itx->itx_wr_state = write_state;
504 if (write_state == WR_NEED_COPY)
505 itx->itx_sod += len;
506 lr->lr_foid = zp->z_id;
507 lr->lr_offset = off;
508 lr->lr_length = len;
509 lr->lr_blkoff = 0;
510 BP_ZERO(&lr->lr_blkptr);
511
512 itx->itx_private = zp->z_zfsvfs;
513
514 if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) &&
515 (fsync_cnt == 0))
516 itx->itx_sync = B_FALSE;
517
518 zil_itx_assign(zilog, itx, tx);
519
520 off += len;
521 resid -= len;
522 }
523 }
524
525 /*
526 * Handles TX_TRUNCATE transactions.
527 */
528 void
529 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
530 znode_t *zp, uint64_t off, uint64_t len)
531 {
532 itx_t *itx;
533 lr_truncate_t *lr;
534
535 if (zil_replaying(zilog, tx) || zp->z_unlinked)
536 return;
537
538 itx = zil_itx_create(txtype, sizeof (*lr));
539 lr = (lr_truncate_t *)&itx->itx_lr;
540 lr->lr_foid = zp->z_id;
541 lr->lr_offset = off;
542 lr->lr_length = len;
543
544 itx->itx_sync = (zp->z_sync_cnt != 0);
545 zil_itx_assign(zilog, itx, tx);
546 }
547
548 /*
549 * Handles TX_SETATTR transactions.
550 */
551 void
552 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
553 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp)
554 {
555 itx_t *itx;
556 lr_setattr_t *lr;
557 xvattr_t *xvap = (xvattr_t *)vap;
558 size_t recsize = sizeof (lr_setattr_t);
559 void *start;
560
561 if (zil_replaying(zilog, tx) || zp->z_unlinked)
562 return;
563
564 /*
565 * If XVATTR set, then log record size needs to allow
566 * for lr_attr_t + xvattr mask, mapsize and create time
567 * plus actual attribute values
568 */
569 if (vap->va_mask & AT_XVATTR)
570 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize);
571
572 if (fuidp)
573 recsize += fuidp->z_domain_str_sz;
574
575 itx = zil_itx_create(txtype, recsize);
576 lr = (lr_setattr_t *)&itx->itx_lr;
577 lr->lr_foid = zp->z_id;
578 lr->lr_mask = (uint64_t)mask_applied;
579 lr->lr_mode = (uint64_t)vap->va_mode;
580 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid))
581 lr->lr_uid = fuidp->z_fuid_owner;
582 else
583 lr->lr_uid = (uint64_t)vap->va_uid;
584
585 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid))
586 lr->lr_gid = fuidp->z_fuid_group;
587 else
588 lr->lr_gid = (uint64_t)vap->va_gid;
589
590 lr->lr_size = (uint64_t)vap->va_size;
591 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime);
592 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime);
593 start = (lr_setattr_t *)(lr + 1);
594 if (vap->va_mask & AT_XVATTR) {
595 zfs_log_xvattr((lr_attr_t *)start, xvap);
596 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize);
597 }
598
599 /*
600 * Now stick on domain information if any on end
601 */
602
603 if (fuidp)
604 (void) zfs_log_fuid_domains(fuidp, start);
605
606 itx->itx_sync = (zp->z_sync_cnt != 0);
607 zil_itx_assign(zilog, itx, tx);
608 }
609
610 /*
611 * Handles TX_ACL transactions.
612 */
613 void
614 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
615 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp)
616 {
617 itx_t *itx;
618 lr_acl_v0_t *lrv0;
619 lr_acl_t *lr;
620 int txtype;
621 int lrsize;
622 size_t txsize;
623 size_t aclbytes = vsecp->vsa_aclentsz;
624
625 if (zil_replaying(zilog, tx) || zp->z_unlinked)
626 return;
627
628 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ?
629 TX_ACL_V0 : TX_ACL;
630
631 if (txtype == TX_ACL)
632 lrsize = sizeof (*lr);
633 else
634 lrsize = sizeof (*lrv0);
635
636 txsize = lrsize +
637 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) +
638 (fuidp ? fuidp->z_domain_str_sz : 0) +
639 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0);
640
641 itx = zil_itx_create(txtype, txsize);
642
643 lr = (lr_acl_t *)&itx->itx_lr;
644 lr->lr_foid = zp->z_id;
645 if (txtype == TX_ACL) {
646 lr->lr_acl_bytes = aclbytes;
647 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
648 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
649 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS)
650 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
651 else
652 lr->lr_acl_flags = 0;
653 }
654 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt;
655
656 if (txtype == TX_ACL_V0) {
657 lrv0 = (lr_acl_v0_t *)lr;
658 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes);
659 } else {
660 void *start = (ace_t *)(lr + 1);
661
662 bcopy(vsecp->vsa_aclentp, start, aclbytes);
663
664 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes);
665
666 if (fuidp) {
667 start = zfs_log_fuid_ids(fuidp, start);
668 (void) zfs_log_fuid_domains(fuidp, start);
669 }
670 }
671
672 itx->itx_sync = (zp->z_sync_cnt != 0);
673 zil_itx_assign(zilog, itx, tx);
674 }