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/file.h>
32 #include <sys/vfs.h>
33 #include <sys/zfs_znode.h>
34 #include <sys/zfs_dir.h>
35 #include <sys/zil.h>
36 #include <sys/zil_impl.h>
37 #include <sys/byteorder.h>
38 #include <sys/policy.h>
39 #include <sys/stat.h>
40 #include <sys/acl.h>
41 #include <sys/dmu.h>
42 #include <sys/spa.h>
43 #include <sys/zfs_fuid.h>
44 #include <sys/dsl_dataset.h>
45
46 /*
47 * These zfs_log_* functions must be called within a dmu tx, in one
48 * of 2 contexts depending on zilog->z_replay:
49 *
50 * Non replay mode
51 * ---------------
52 * We need to record the transaction so that if it is committed to
53 * the Intent Log then it can be replayed. An intent log transaction
54 * structure (itx_t) is allocated and all the information necessary to
55 * possibly replay the transaction is saved in it. The itx is then assigned
56 * a sequence number and inserted in the in-memory list anchored in the zilog.
57 *
58 * Replay mode
59 * -----------
60 * We need to mark the intent log record as replayed in the log header.
61 * This is done in the same transaction as the replay so that they
62 * commit atomically.
63 */
64
65 int
zfs_log_create_txtype(zil_create_t type,vsecattr_t * vsecp,vattr_t * vap)66 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap)
67 {
68 int isxvattr = (vap->va_mask & AT_XVATTR);
69 switch (type) {
70 case Z_FILE:
71 if (vsecp == NULL && !isxvattr)
72 return (TX_CREATE);
73 if (vsecp && isxvattr)
74 #ifdef TODO
75 return (TX_CREATE_ACL_ATTR);
76 #else
77 panic("%s:%u: unsupported condition", __func__, __LINE__);
78 #endif
79 if (vsecp)
80 return (TX_CREATE_ACL);
81 else
82 return (TX_CREATE_ATTR);
83 /*NOTREACHED*/
84 case Z_DIR:
85 if (vsecp == NULL && !isxvattr)
86 return (TX_MKDIR);
87 if (vsecp && isxvattr)
88 #ifdef TODO
89 return (TX_MKDIR_ACL_ATTR);
90 #else
91 panic("%s:%u: unsupported condition", __func__, __LINE__);
92 #endif
93 if (vsecp)
94 return (TX_MKDIR_ACL);
95 else
96 return (TX_MKDIR_ATTR);
97 case Z_XATTRDIR:
98 return (TX_MKXATTR);
99 }
100 ASSERT(0);
101 return (TX_MAX_TYPE);
102 }
103
104 /*
105 * build up the log data necessary for logging xvattr_t
106 * First lr_attr_t is initialized. following the lr_attr_t
107 * is the mapsize and attribute bitmap copied from the xvattr_t.
108 * Following the bitmap and bitmapsize two 64 bit words are reserved
109 * for the create time which may be set. Following the create time
110 * records a single 64 bit integer which has the bits to set on
111 * replay for the xvattr.
112 */
113 static void
zfs_log_xvattr(lr_attr_t * lrattr,xvattr_t * xvap)114 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
115 {
116 uint32_t *bitmap;
117 uint64_t *attrs;
118 uint64_t *crtime;
119 xoptattr_t *xoap;
120 void *scanstamp;
121 int i;
122
123 xoap = xva_getxoptattr(xvap);
124 ASSERT(xoap);
125
126 lrattr->lr_attr_masksize = xvap->xva_mapsize;
127 bitmap = &lrattr->lr_attr_bitmap;
128 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) {
129 *bitmap = xvap->xva_reqattrmap[i];
130 }
131
132 /* Now pack the attributes up in a single uint64_t */
133 attrs = (uint64_t *)bitmap;
134 crtime = attrs + 1;
135 scanstamp = (caddr_t)(crtime + 2);
136 *attrs = 0;
137 if (XVA_ISSET_REQ(xvap, XAT_READONLY))
138 *attrs |= (xoap->xoa_readonly == 0) ? 0 :
139 XAT0_READONLY;
140 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
141 *attrs |= (xoap->xoa_hidden == 0) ? 0 :
142 XAT0_HIDDEN;
143 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
144 *attrs |= (xoap->xoa_system == 0) ? 0 :
145 XAT0_SYSTEM;
146 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
147 *attrs |= (xoap->xoa_archive == 0) ? 0 :
148 XAT0_ARCHIVE;
149 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
150 *attrs |= (xoap->xoa_immutable == 0) ? 0 :
151 XAT0_IMMUTABLE;
152 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
153 *attrs |= (xoap->xoa_nounlink == 0) ? 0 :
154 XAT0_NOUNLINK;
155 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
156 *attrs |= (xoap->xoa_appendonly == 0) ? 0 :
157 XAT0_APPENDONLY;
158 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
159 *attrs |= (xoap->xoa_opaque == 0) ? 0 :
160 XAT0_APPENDONLY;
161 if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
162 *attrs |= (xoap->xoa_nodump == 0) ? 0 :
163 XAT0_NODUMP;
164 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
165 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 :
166 XAT0_AV_QUARANTINED;
167 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
168 *attrs |= (xoap->xoa_av_modified == 0) ? 0 :
169 XAT0_AV_MODIFIED;
170 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
171 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime);
172 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
173 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
174 if (XVA_ISSET_REQ(xvap, XAT_REPARSE))
175 *attrs |= (xoap->xoa_reparse == 0) ? 0 :
176 XAT0_REPARSE;
177 if (XVA_ISSET_REQ(xvap, XAT_OFFLINE))
178 *attrs |= (xoap->xoa_offline == 0) ? 0 :
179 XAT0_OFFLINE;
180 if (XVA_ISSET_REQ(xvap, XAT_SPARSE))
181 *attrs |= (xoap->xoa_sparse == 0) ? 0 :
182 XAT0_SPARSE;
183 }
184
185 static void *
zfs_log_fuid_ids(zfs_fuid_info_t * fuidp,void * start)186 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
187 {
188 zfs_fuid_t *zfuid;
189 uint64_t *fuidloc = start;
190
191 /* First copy in the ACE FUIDs */
192 for (zfuid = list_head(&fuidp->z_fuids); zfuid;
193 zfuid = list_next(&fuidp->z_fuids, zfuid)) {
194 *fuidloc++ = zfuid->z_logfuid;
195 }
196 return (fuidloc);
197 }
198
199
200 static void *
zfs_log_fuid_domains(zfs_fuid_info_t * fuidp,void * start)201 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
202 {
203 zfs_fuid_domain_t *zdomain;
204
205 /* now copy in the domain info, if any */
206 if (fuidp->z_domain_str_sz != 0) {
207 for (zdomain = list_head(&fuidp->z_domains); zdomain;
208 zdomain = list_next(&fuidp->z_domains, zdomain)) {
209 bcopy((void *)zdomain->z_domain, start,
210 strlen(zdomain->z_domain) + 1);
211 start = (caddr_t)start +
212 strlen(zdomain->z_domain) + 1;
213 }
214 }
215 return (start);
216 }
217
218 /*
219 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and
220 * TK_MKXATTR transactions.
221 *
222 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID
223 * domain information appended prior to the name. In this case the
224 * uid/gid in the log record will be a log centric FUID.
225 *
226 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that
227 * may contain attributes, ACL and optional fuid information.
228 *
229 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify
230 * and ACL and normal users/groups in the ACEs.
231 *
232 * There may be an optional xvattr attribute information similar
233 * to zfs_log_setattr.
234 *
235 * Also, after the file name "domain" strings may be appended.
236 */
237 void
zfs_log_create(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name,vsecattr_t * vsecp,zfs_fuid_info_t * fuidp,vattr_t * vap)238 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
239 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp,
240 zfs_fuid_info_t *fuidp, vattr_t *vap)
241 {
242 itx_t *itx;
243 lr_create_t *lr;
244 lr_acl_create_t *lracl;
245 size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0;
246 size_t xvatsize = 0;
247 size_t txsize;
248 xvattr_t *xvap = (xvattr_t *)vap;
249 void *end;
250 size_t lrsize;
251 size_t namesize = strlen(name) + 1;
252 size_t fuidsz = 0;
253
254 if (zil_replaying(zilog, tx))
255 return;
256
257 /*
258 * If we have FUIDs present then add in space for
259 * domains and ACE fuid's if any.
260 */
261 if (fuidp) {
262 fuidsz += fuidp->z_domain_str_sz;
263 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
264 }
265
266 if (vap->va_mask & AT_XVATTR)
267 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
268
269 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
270 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
271 (int)txtype == TX_MKXATTR) {
272 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
273 lrsize = sizeof (*lr);
274 } else {
275 txsize =
276 sizeof (lr_acl_create_t) + namesize + fuidsz +
277 ZIL_ACE_LENGTH(aclsize) + xvatsize;
278 lrsize = sizeof (lr_acl_create_t);
279 }
280
281 itx = zil_itx_create(txtype, txsize);
282
283 lr = (lr_create_t *)&itx->itx_lr;
284 lr->lr_doid = dzp->z_id;
285 lr->lr_foid = zp->z_id;
286 lr->lr_mode = zp->z_mode;
287 if (!IS_EPHEMERAL(zp->z_uid)) {
288 lr->lr_uid = (uint64_t)zp->z_uid;
289 } else {
290 lr->lr_uid = fuidp->z_fuid_owner;
291 }
292 if (!IS_EPHEMERAL(zp->z_gid)) {
293 lr->lr_gid = (uint64_t)zp->z_gid;
294 } else {
295 lr->lr_gid = fuidp->z_fuid_group;
296 }
297 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
298 sizeof (uint64_t));
299 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
300 lr->lr_crtime, sizeof (uint64_t) * 2);
301
302 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev,
303 sizeof (lr->lr_rdev)) != 0)
304 lr->lr_rdev = 0;
305
306 /*
307 * Fill in xvattr info if any
308 */
309 if (vap->va_mask & AT_XVATTR) {
310 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
311 end = (caddr_t)lr + lrsize + xvatsize;
312 } else {
313 end = (caddr_t)lr + lrsize;
314 }
315
316 /* Now fill in any ACL info */
317
318 if (vsecp) {
319 lracl = (lr_acl_create_t *)&itx->itx_lr;
320 lracl->lr_aclcnt = vsecp->vsa_aclcnt;
321 lracl->lr_acl_bytes = aclsize;
322 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
323 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
324 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
325 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
326 else
327 lracl->lr_acl_flags = 0;
328
329 bcopy(vsecp->vsa_aclentp, end, aclsize);
330 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
331 }
332
333 /* drop in FUID info */
334 if (fuidp) {
335 end = zfs_log_fuid_ids(fuidp, end);
336 end = zfs_log_fuid_domains(fuidp, end);
337 }
338 /*
339 * Now place file name in log record
340 */
341 bcopy(name, end, namesize);
342
343 zil_itx_assign(zilog, itx, tx);
344 }
345
346 /*
347 * Handles both TX_REMOVE and TX_RMDIR transactions.
348 */
349 void
zfs_log_remove(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,char * name,uint64_t foid)350 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
351 znode_t *dzp, char *name, uint64_t foid)
352 {
353 itx_t *itx;
354 lr_remove_t *lr;
355 size_t namesize = strlen(name) + 1;
356
357 if (zil_replaying(zilog, tx))
358 return;
359
360 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
361 lr = (lr_remove_t *)&itx->itx_lr;
362 lr->lr_doid = dzp->z_id;
363 bcopy(name, (char *)(lr + 1), namesize);
364
365 itx->itx_oid = foid;
366
367 zil_itx_assign(zilog, itx, tx);
368 }
369
370 /*
371 * Handles TX_LINK transactions.
372 */
373 void
zfs_log_link(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name)374 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
375 znode_t *dzp, znode_t *zp, char *name)
376 {
377 itx_t *itx;
378 lr_link_t *lr;
379 size_t namesize = strlen(name) + 1;
380
381 if (zil_replaying(zilog, tx))
382 return;
383
384 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
385 lr = (lr_link_t *)&itx->itx_lr;
386 lr->lr_doid = dzp->z_id;
387 lr->lr_link_obj = zp->z_id;
388 bcopy(name, (char *)(lr + 1), namesize);
389
390 zil_itx_assign(zilog, itx, tx);
391 }
392
393 /*
394 * Handles TX_SYMLINK transactions.
395 */
396 void
zfs_log_symlink(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name,char * link)397 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
398 znode_t *dzp, znode_t *zp, char *name, char *link)
399 {
400 itx_t *itx;
401 lr_create_t *lr;
402 size_t namesize = strlen(name) + 1;
403 size_t linksize = strlen(link) + 1;
404
405 if (zil_replaying(zilog, tx))
406 return;
407
408 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize);
409 lr = (lr_create_t *)&itx->itx_lr;
410 lr->lr_doid = dzp->z_id;
411 lr->lr_foid = zp->z_id;
412 lr->lr_uid = zp->z_uid;
413 lr->lr_gid = zp->z_gid;
414 lr->lr_mode = zp->z_mode;
415 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
416 sizeof (uint64_t));
417 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
418 lr->lr_crtime, sizeof (uint64_t) * 2);
419 bcopy(name, (char *)(lr + 1), namesize);
420 bcopy(link, (char *)(lr + 1) + namesize, linksize);
421
422 zil_itx_assign(zilog, itx, tx);
423 }
424
425 /*
426 * Handles TX_RENAME transactions.
427 */
428 void
zfs_log_rename(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * sdzp,char * sname,znode_t * tdzp,char * dname,znode_t * szp)429 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
430 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp)
431 {
432 itx_t *itx;
433 lr_rename_t *lr;
434 size_t snamesize = strlen(sname) + 1;
435 size_t dnamesize = strlen(dname) + 1;
436
437 if (zil_replaying(zilog, tx))
438 return;
439
440 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize);
441 lr = (lr_rename_t *)&itx->itx_lr;
442 lr->lr_sdoid = sdzp->z_id;
443 lr->lr_tdoid = tdzp->z_id;
444 bcopy(sname, (char *)(lr + 1), snamesize);
445 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize);
446 itx->itx_oid = szp->z_id;
447
448 zil_itx_assign(zilog, itx, tx);
449 }
450
451 /*
452 * Handles TX_WRITE transactions.
453 */
454 ssize_t zfs_immediate_write_sz = 32768;
455
456 void
zfs_log_write(zilog_t * zilog,dmu_tx_t * tx,int txtype,znode_t * zp,offset_t off,ssize_t resid,int ioflag)457 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
458 znode_t *zp, offset_t off, ssize_t resid, int ioflag)
459 {
460 itx_wr_state_t write_state;
461 boolean_t slogging;
462 uintptr_t fsync_cnt;
463 ssize_t immediate_write_sz;
464
465 if (zil_replaying(zilog, tx) || zp->z_unlinked)
466 return;
467
468 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
469 ? 0 : zfs_immediate_write_sz;
470
471 slogging = spa_has_slogs(zilog->zl_spa) &&
472 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY);
473 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz)
474 write_state = WR_INDIRECT;
475 else if (ioflag & (FSYNC | FDSYNC))
476 write_state = WR_COPIED;
477 else
478 write_state = WR_NEED_COPY;
479
480 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
481 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
482 }
483
484 while (resid) {
485 itx_t *itx;
486 lr_write_t *lr;
487 ssize_t len;
488
489 /*
490 * If the write would overflow the largest block then split it.
491 */
492 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA)
493 len = SPA_OLD_MAXBLOCKSIZE >> 1;
494 else
495 len = resid;
496
497 itx = zil_itx_create(txtype, sizeof (*lr) +
498 (write_state == WR_COPIED ? len : 0));
499 lr = (lr_write_t *)&itx->itx_lr;
500 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
501 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) {
502 zil_itx_destroy(itx);
503 itx = zil_itx_create(txtype, sizeof (*lr));
504 lr = (lr_write_t *)&itx->itx_lr;
505 write_state = WR_NEED_COPY;
506 }
507
508 itx->itx_wr_state = write_state;
509 if (write_state == WR_NEED_COPY)
510 itx->itx_sod += len;
511 lr->lr_foid = zp->z_id;
512 lr->lr_offset = off;
513 lr->lr_length = len;
514 lr->lr_blkoff = 0;
515 BP_ZERO(&lr->lr_blkptr);
516
517 itx->itx_private = zp->z_zfsvfs;
518
519 if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) &&
520 (fsync_cnt == 0))
521 itx->itx_sync = B_FALSE;
522
523 zil_itx_assign(zilog, itx, tx);
524
525 off += len;
526 resid -= len;
527 }
528 }
529
530 /*
531 * Handles TX_TRUNCATE transactions.
532 */
533 void
zfs_log_truncate(zilog_t * zilog,dmu_tx_t * tx,int txtype,znode_t * zp,uint64_t off,uint64_t len)534 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
535 znode_t *zp, uint64_t off, uint64_t len)
536 {
537 itx_t *itx;
538 lr_truncate_t *lr;
539
540 if (zil_replaying(zilog, tx) || zp->z_unlinked)
541 return;
542
543 itx = zil_itx_create(txtype, sizeof (*lr));
544 lr = (lr_truncate_t *)&itx->itx_lr;
545 lr->lr_foid = zp->z_id;
546 lr->lr_offset = off;
547 lr->lr_length = len;
548
549 itx->itx_sync = (zp->z_sync_cnt != 0);
550 zil_itx_assign(zilog, itx, tx);
551 }
552
553 /*
554 * Handles TX_SETATTR transactions.
555 */
556 void
zfs_log_setattr(zilog_t * zilog,dmu_tx_t * tx,int txtype,znode_t * zp,vattr_t * vap,uint_t mask_applied,zfs_fuid_info_t * fuidp)557 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
558 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp)
559 {
560 itx_t *itx;
561 lr_setattr_t *lr;
562 xvattr_t *xvap = (xvattr_t *)vap;
563 size_t recsize = sizeof (lr_setattr_t);
564 void *start;
565
566 if (zil_replaying(zilog, tx) || zp->z_unlinked)
567 return;
568
569 /*
570 * If XVATTR set, then log record size needs to allow
571 * for lr_attr_t + xvattr mask, mapsize and create time
572 * plus actual attribute values
573 */
574 if (vap->va_mask & AT_XVATTR)
575 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize);
576
577 if (fuidp)
578 recsize += fuidp->z_domain_str_sz;
579
580 itx = zil_itx_create(txtype, recsize);
581 lr = (lr_setattr_t *)&itx->itx_lr;
582 lr->lr_foid = zp->z_id;
583 lr->lr_mask = (uint64_t)mask_applied;
584 lr->lr_mode = (uint64_t)vap->va_mode;
585 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid))
586 lr->lr_uid = fuidp->z_fuid_owner;
587 else
588 lr->lr_uid = (uint64_t)vap->va_uid;
589
590 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid))
591 lr->lr_gid = fuidp->z_fuid_group;
592 else
593 lr->lr_gid = (uint64_t)vap->va_gid;
594
595 lr->lr_size = (uint64_t)vap->va_size;
596 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime);
597 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime);
598 start = (lr_setattr_t *)(lr + 1);
599 if (vap->va_mask & AT_XVATTR) {
600 zfs_log_xvattr((lr_attr_t *)start, xvap);
601 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize);
602 }
603
604 /*
605 * Now stick on domain information if any on end
606 */
607
608 if (fuidp)
609 (void) zfs_log_fuid_domains(fuidp, start);
610
611 itx->itx_sync = (zp->z_sync_cnt != 0);
612 zil_itx_assign(zilog, itx, tx);
613 }
614
615 /*
616 * Handles TX_ACL transactions.
617 */
618 void
zfs_log_acl(zilog_t * zilog,dmu_tx_t * tx,znode_t * zp,vsecattr_t * vsecp,zfs_fuid_info_t * fuidp)619 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
620 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp)
621 {
622 itx_t *itx;
623 lr_acl_v0_t *lrv0;
624 lr_acl_t *lr;
625 int txtype;
626 int lrsize;
627 size_t txsize;
628 size_t aclbytes = vsecp->vsa_aclentsz;
629
630 if (zil_replaying(zilog, tx) || zp->z_unlinked)
631 return;
632
633 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ?
634 TX_ACL_V0 : TX_ACL;
635
636 if (txtype == TX_ACL)
637 lrsize = sizeof (*lr);
638 else
639 lrsize = sizeof (*lrv0);
640
641 txsize = lrsize +
642 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) +
643 (fuidp ? fuidp->z_domain_str_sz : 0) +
644 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0);
645
646 itx = zil_itx_create(txtype, txsize);
647
648 lr = (lr_acl_t *)&itx->itx_lr;
649 lr->lr_foid = zp->z_id;
650 if (txtype == TX_ACL) {
651 lr->lr_acl_bytes = aclbytes;
652 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
653 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
654 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS)
655 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
656 else
657 lr->lr_acl_flags = 0;
658 }
659 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt;
660
661 if (txtype == TX_ACL_V0) {
662 lrv0 = (lr_acl_v0_t *)lr;
663 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes);
664 } else {
665 void *start = (ace_t *)(lr + 1);
666
667 bcopy(vsecp->vsa_aclentp, start, aclbytes);
668
669 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes);
670
671 if (fuidp) {
672 start = zfs_log_fuid_ids(fuidp, start);
673 (void) zfs_log_fuid_domains(fuidp, start);
674 }
675 }
676
677 itx->itx_sync = (zp->z_sync_cnt != 0);
678 zil_itx_assign(zilog, itx, tx);
679 }
680