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 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/types.h>
27 #include <sys/param.h>
28 #include <sys/systm.h>
29 #include <sys/sysmacros.h>
30 #include <sys/cmn_err.h>
31 #include <sys/kmem.h>
32 #include <sys/thread.h>
33 #include <sys/file.h>
34 #include <sys/vfs.h>
35 #include <sys/zfs_znode.h>
36 #include <sys/zfs_dir.h>
37 #include <sys/zil.h>
38 #include <sys/zil_impl.h>
39 #include <sys/byteorder.h>
40 #include <sys/policy.h>
41 #include <sys/stat.h>
42 #include <sys/mode.h>
43 #include <sys/acl.h>
44 #include <sys/dmu.h>
45 #include <sys/spa.h>
46 #include <sys/zfs_fuid.h>
47 #include <sys/ddi.h>
48 #include <sys/dsl_dataset.h>
49
50 /*
51 * These zfs_log_* functions must be called within a dmu tx, in one
52 * of 2 contexts depending on zilog->z_replay:
53 *
54 * Non replay mode
55 * ---------------
56 * We need to record the transaction so that if it is committed to
57 * the Intent Log then it can be replayed. An intent log transaction
58 * structure (itx_t) is allocated and all the information necessary to
59 * possibly replay the transaction is saved in it. The itx is then assigned
60 * a sequence number and inserted in the in-memory list anchored in the zilog.
61 *
62 * Replay mode
63 * -----------
64 * We need to mark the intent log record as replayed in the log header.
65 * This is done in the same transaction as the replay so that they
66 * commit atomically.
67 */
68
69 int
zfs_log_create_txtype(zil_create_t type,vsecattr_t * vsecp,vattr_t * vap)70 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap)
71 {
72 int isxvattr = (vap->va_mask & AT_XVATTR);
73 switch (type) {
74 case Z_FILE:
75 if (vsecp == NULL && !isxvattr)
76 return (TX_CREATE);
77 if (vsecp && isxvattr)
78 return (TX_CREATE_ACL_ATTR);
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 return (TX_MKDIR_ACL_ATTR);
89 if (vsecp)
90 return (TX_MKDIR_ACL);
91 else
92 return (TX_MKDIR_ATTR);
93 case Z_XATTRDIR:
94 return (TX_MKXATTR);
95 }
96 ASSERT(0);
97 return (TX_MAX_TYPE);
98 }
99
100 /*
101 * build up the log data necessary for logging xvattr_t
102 * First lr_attr_t is initialized. following the lr_attr_t
103 * is the mapsize and attribute bitmap copied from the xvattr_t.
104 * Following the bitmap and bitmapsize two 64 bit words are reserved
105 * for the create time which may be set. Following the create time
106 * records a single 64 bit integer which has the bits to set on
107 * replay for the xvattr.
108 */
109 static void
zfs_log_xvattr(lr_attr_t * lrattr,xvattr_t * xvap)110 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
111 {
112 uint32_t *bitmap;
113 uint64_t *attrs;
114 uint64_t *crtime;
115 xoptattr_t *xoap;
116 void *scanstamp;
117 int i;
118
119 xoap = xva_getxoptattr(xvap);
120 ASSERT(xoap);
121
122 lrattr->lr_attr_masksize = xvap->xva_mapsize;
123 bitmap = &lrattr->lr_attr_bitmap;
124 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) {
125 *bitmap = xvap->xva_reqattrmap[i];
126 }
127
128 /* Now pack the attributes up in a single uint64_t */
129 attrs = (uint64_t *)bitmap;
130 crtime = attrs + 1;
131 scanstamp = (caddr_t)(crtime + 2);
132 *attrs = 0;
133 if (XVA_ISSET_REQ(xvap, XAT_READONLY))
134 *attrs |= (xoap->xoa_readonly == 0) ? 0 :
135 XAT0_READONLY;
136 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
137 *attrs |= (xoap->xoa_hidden == 0) ? 0 :
138 XAT0_HIDDEN;
139 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
140 *attrs |= (xoap->xoa_system == 0) ? 0 :
141 XAT0_SYSTEM;
142 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
143 *attrs |= (xoap->xoa_archive == 0) ? 0 :
144 XAT0_ARCHIVE;
145 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
146 *attrs |= (xoap->xoa_immutable == 0) ? 0 :
147 XAT0_IMMUTABLE;
148 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
149 *attrs |= (xoap->xoa_nounlink == 0) ? 0 :
150 XAT0_NOUNLINK;
151 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
152 *attrs |= (xoap->xoa_appendonly == 0) ? 0 :
153 XAT0_APPENDONLY;
154 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
155 *attrs |= (xoap->xoa_opaque == 0) ? 0 :
156 XAT0_APPENDONLY;
157 if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
158 *attrs |= (xoap->xoa_nodump == 0) ? 0 :
159 XAT0_NODUMP;
160 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
161 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 :
162 XAT0_AV_QUARANTINED;
163 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
164 *attrs |= (xoap->xoa_av_modified == 0) ? 0 :
165 XAT0_AV_MODIFIED;
166 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
167 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime);
168 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
169 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
170 if (XVA_ISSET_REQ(xvap, XAT_REPARSE))
171 *attrs |= (xoap->xoa_reparse == 0) ? 0 :
172 XAT0_REPARSE;
173 }
174
175 static void *
zfs_log_fuid_ids(zfs_fuid_info_t * fuidp,void * start)176 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
177 {
178 zfs_fuid_t *zfuid;
179 uint64_t *fuidloc = start;
180
181 /* First copy in the ACE FUIDs */
182 for (zfuid = list_head(&fuidp->z_fuids); zfuid;
183 zfuid = list_next(&fuidp->z_fuids, zfuid)) {
184 *fuidloc++ = zfuid->z_logfuid;
185 }
186 return (fuidloc);
187 }
188
189
190 static void *
zfs_log_fuid_domains(zfs_fuid_info_t * fuidp,void * start)191 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
192 {
193 zfs_fuid_domain_t *zdomain;
194
195 /* now copy in the domain info, if any */
196 if (fuidp->z_domain_str_sz != 0) {
197 for (zdomain = list_head(&fuidp->z_domains); zdomain;
198 zdomain = list_next(&fuidp->z_domains, zdomain)) {
199 bcopy((void *)zdomain->z_domain, start,
200 strlen(zdomain->z_domain) + 1);
201 start = (caddr_t)start +
202 strlen(zdomain->z_domain) + 1;
203 }
204 }
205 return (start);
206 }
207
208 /*
209 * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR,
210 * TX_MKDIR_ATTR and TX_MKXATTR
211 * transactions.
212 *
213 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID
214 * domain information appended prior to the name. In this case the
215 * uid/gid in the log record will be a log centric FUID.
216 *
217 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that
218 * may contain attributes, ACL and optional fuid information.
219 *
220 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify
221 * and ACL and normal users/groups in the ACEs.
222 *
223 * There may be an optional xvattr attribute information similar
224 * to zfs_log_setattr.
225 *
226 * Also, after the file name "domain" strings may be appended.
227 */
228 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)229 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
230 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp,
231 zfs_fuid_info_t *fuidp, vattr_t *vap)
232 {
233 itx_t *itx;
234 uint64_t seq;
235 lr_create_t *lr;
236 lr_acl_create_t *lracl;
237 size_t aclsize;
238 size_t xvatsize = 0;
239 size_t txsize;
240 xvattr_t *xvap = (xvattr_t *)vap;
241 void *end;
242 size_t lrsize;
243 size_t namesize = strlen(name) + 1;
244 size_t fuidsz = 0;
245
246 if (zil_replaying(zilog, tx))
247 return;
248
249 /*
250 * If we have FUIDs present then add in space for
251 * domains and ACE fuid's if any.
252 */
253 if (fuidp) {
254 fuidsz += fuidp->z_domain_str_sz;
255 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
256 }
257
258 if (vap->va_mask & AT_XVATTR)
259 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
260
261 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
262 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
263 (int)txtype == TX_MKXATTR) {
264 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
265 lrsize = sizeof (*lr);
266 } else {
267 aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0;
268 txsize =
269 sizeof (lr_acl_create_t) + namesize + fuidsz +
270 ZIL_ACE_LENGTH(aclsize) + xvatsize;
271 lrsize = sizeof (lr_acl_create_t);
272 }
273
274 itx = zil_itx_create(txtype, txsize);
275
276 lr = (lr_create_t *)&itx->itx_lr;
277 lr->lr_doid = dzp->z_id;
278 lr->lr_foid = zp->z_id;
279 lr->lr_mode = zp->z_phys->zp_mode;
280 if (!IS_EPHEMERAL(zp->z_phys->zp_uid)) {
281 lr->lr_uid = (uint64_t)zp->z_phys->zp_uid;
282 } else {
283 lr->lr_uid = fuidp->z_fuid_owner;
284 }
285 if (!IS_EPHEMERAL(zp->z_phys->zp_gid)) {
286 lr->lr_gid = (uint64_t)zp->z_phys->zp_gid;
287 } else {
288 lr->lr_gid = fuidp->z_fuid_group;
289 }
290 lr->lr_gen = zp->z_phys->zp_gen;
291 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0];
292 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1];
293 lr->lr_rdev = zp->z_phys->zp_rdev;
294
295 /*
296 * Fill in xvattr info if any
297 */
298 if (vap->va_mask & AT_XVATTR) {
299 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
300 end = (caddr_t)lr + lrsize + xvatsize;
301 } else {
302 end = (caddr_t)lr + lrsize;
303 }
304
305 /* Now fill in any ACL info */
306
307 if (vsecp) {
308 lracl = (lr_acl_create_t *)&itx->itx_lr;
309 lracl->lr_aclcnt = vsecp->vsa_aclcnt;
310 lracl->lr_acl_bytes = aclsize;
311 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
312 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
313 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
314 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
315 else
316 lracl->lr_acl_flags = 0;
317
318 bcopy(vsecp->vsa_aclentp, end, aclsize);
319 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
320 }
321
322 /* drop in FUID info */
323 if (fuidp) {
324 end = zfs_log_fuid_ids(fuidp, end);
325 end = zfs_log_fuid_domains(fuidp, end);
326 }
327 /*
328 * Now place file name in log record
329 */
330 bcopy(name, end, namesize);
331
332 seq = zil_itx_assign(zilog, itx, tx);
333 dzp->z_last_itx = seq;
334 zp->z_last_itx = seq;
335 }
336
337 /*
338 * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions.
339 */
340 void
zfs_log_remove(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,char * name)341 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
342 znode_t *dzp, char *name)
343 {
344 itx_t *itx;
345 uint64_t seq;
346 lr_remove_t *lr;
347 size_t namesize = strlen(name) + 1;
348
349 if (zil_replaying(zilog, tx))
350 return;
351
352 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
353 lr = (lr_remove_t *)&itx->itx_lr;
354 lr->lr_doid = dzp->z_id;
355 bcopy(name, (char *)(lr + 1), namesize);
356
357 seq = zil_itx_assign(zilog, itx, tx);
358 dzp->z_last_itx = seq;
359 }
360
361 /*
362 * zfs_log_link() handles TX_LINK transactions.
363 */
364 void
zfs_log_link(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name)365 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
366 znode_t *dzp, znode_t *zp, char *name)
367 {
368 itx_t *itx;
369 uint64_t seq;
370 lr_link_t *lr;
371 size_t namesize = strlen(name) + 1;
372
373 if (zil_replaying(zilog, tx))
374 return;
375
376 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
377 lr = (lr_link_t *)&itx->itx_lr;
378 lr->lr_doid = dzp->z_id;
379 lr->lr_link_obj = zp->z_id;
380 bcopy(name, (char *)(lr + 1), namesize);
381
382 seq = zil_itx_assign(zilog, itx, tx);
383 dzp->z_last_itx = seq;
384 zp->z_last_itx = seq;
385 }
386
387 /*
388 * zfs_log_symlink() handles TX_SYMLINK transactions.
389 */
390 void
zfs_log_symlink(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name,char * link)391 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
392 znode_t *dzp, znode_t *zp, char *name, char *link)
393 {
394 itx_t *itx;
395 uint64_t seq;
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_mode = zp->z_phys->zp_mode;
408 lr->lr_uid = zp->z_phys->zp_uid;
409 lr->lr_gid = zp->z_phys->zp_gid;
410 lr->lr_gen = zp->z_phys->zp_gen;
411 lr->lr_crtime[0] = zp->z_phys->zp_crtime[0];
412 lr->lr_crtime[1] = zp->z_phys->zp_crtime[1];
413 bcopy(name, (char *)(lr + 1), namesize);
414 bcopy(link, (char *)(lr + 1) + namesize, linksize);
415
416 seq = zil_itx_assign(zilog, itx, tx);
417 dzp->z_last_itx = seq;
418 zp->z_last_itx = seq;
419 }
420
421 /*
422 * zfs_log_rename() handles TX_RENAME transactions.
423 */
424 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)425 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
426 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp)
427 {
428 itx_t *itx;
429 uint64_t seq;
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
444 seq = zil_itx_assign(zilog, itx, tx);
445 sdzp->z_last_itx = seq;
446 tdzp->z_last_itx = seq;
447 szp->z_last_itx = seq;
448 }
449
450 /*
451 * zfs_log_write() handles TX_WRITE transactions.
452 */
453 ssize_t zfs_immediate_write_sz = 32768;
454
455 void
zfs_log_write(zilog_t * zilog,dmu_tx_t * tx,int txtype,znode_t * zp,offset_t off,ssize_t resid,int ioflag)456 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
457 znode_t *zp, offset_t off, ssize_t resid, int ioflag)
458 {
459 itx_wr_state_t write_state;
460 boolean_t slogging;
461 uintptr_t fsync_cnt;
462 ssize_t immediate_write_sz;
463
464 if (zil_replaying(zilog, tx) || zp->z_unlinked)
465 return;
466
467 immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
468 ? 0 : zfs_immediate_write_sz;
469
470 slogging = spa_has_slogs(zilog->zl_spa) &&
471 (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY);
472 if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz)
473 write_state = WR_INDIRECT;
474 else if (ioflag & (FSYNC | FDSYNC))
475 write_state = WR_COPIED;
476 else
477 write_state = WR_NEED_COPY;
478
479 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
480 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
481 }
482
483 while (resid) {
484 itx_t *itx;
485 lr_write_t *lr;
486 ssize_t len;
487
488 /*
489 * If the write would overflow the largest block then split it.
490 */
491 if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA)
492 len = SPA_MAXBLOCKSIZE >> 1;
493 else
494 len = resid;
495
496 itx = zil_itx_create(txtype, sizeof (*lr) +
497 (write_state == WR_COPIED ? len : 0));
498 lr = (lr_write_t *)&itx->itx_lr;
499 if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
500 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) {
501 zil_itx_destroy(itx);
502 itx = zil_itx_create(txtype, sizeof (*lr));
503 lr = (lr_write_t *)&itx->itx_lr;
504 write_state = WR_NEED_COPY;
505 }
506
507 itx->itx_wr_state = write_state;
508 if (write_state == WR_NEED_COPY)
509 itx->itx_sod += len;
510 lr->lr_foid = zp->z_id;
511 lr->lr_offset = off;
512 lr->lr_length = len;
513 lr->lr_blkoff = 0;
514 BP_ZERO(&lr->lr_blkptr);
515
516 itx->itx_private = zp->z_zfsvfs;
517
518 if ((zp->z_sync_cnt != 0) || (fsync_cnt != 0) ||
519 (ioflag & (FSYNC | FDSYNC)))
520 itx->itx_sync = B_TRUE;
521 else
522 itx->itx_sync = B_FALSE;
523
524 zp->z_last_itx = zil_itx_assign(zilog, itx, tx);
525
526 off += len;
527 resid -= len;
528 }
529 }
530
531 /*
532 * zfs_log_truncate() handles TX_TRUNCATE transactions.
533 */
534 void
zfs_log_truncate(zilog_t * zilog,dmu_tx_t * tx,int txtype,znode_t * zp,uint64_t off,uint64_t len)535 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
536 znode_t *zp, uint64_t off, uint64_t len)
537 {
538 itx_t *itx;
539 uint64_t seq;
540 lr_truncate_t *lr;
541
542 if (zil_replaying(zilog, tx) || zp->z_unlinked)
543 return;
544
545 itx = zil_itx_create(txtype, sizeof (*lr));
546 lr = (lr_truncate_t *)&itx->itx_lr;
547 lr->lr_foid = zp->z_id;
548 lr->lr_offset = off;
549 lr->lr_length = len;
550
551 itx->itx_sync = (zp->z_sync_cnt != 0);
552 seq = zil_itx_assign(zilog, itx, tx);
553 zp->z_last_itx = seq;
554 }
555
556 /*
557 * zfs_log_setattr() handles TX_SETATTR transactions.
558 */
559 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)560 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
561 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp)
562 {
563 itx_t *itx;
564 uint64_t seq;
565 lr_setattr_t *lr;
566 xvattr_t *xvap = (xvattr_t *)vap;
567 size_t recsize = sizeof (lr_setattr_t);
568 void *start;
569
570 if (zil_replaying(zilog, tx) || zp->z_unlinked)
571 return;
572
573 /*
574 * If XVATTR set, then log record size needs to allow
575 * for lr_attr_t + xvattr mask, mapsize and create time
576 * plus actual attribute values
577 */
578 if (vap->va_mask & AT_XVATTR)
579 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize);
580
581 if (fuidp)
582 recsize += fuidp->z_domain_str_sz;
583
584 itx = zil_itx_create(txtype, recsize);
585 lr = (lr_setattr_t *)&itx->itx_lr;
586 lr->lr_foid = zp->z_id;
587 lr->lr_mask = (uint64_t)mask_applied;
588 lr->lr_mode = (uint64_t)vap->va_mode;
589 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid))
590 lr->lr_uid = fuidp->z_fuid_owner;
591 else
592 lr->lr_uid = (uint64_t)vap->va_uid;
593
594 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid))
595 lr->lr_gid = fuidp->z_fuid_group;
596 else
597 lr->lr_gid = (uint64_t)vap->va_gid;
598
599 lr->lr_size = (uint64_t)vap->va_size;
600 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime);
601 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime);
602 start = (lr_setattr_t *)(lr + 1);
603 if (vap->va_mask & AT_XVATTR) {
604 zfs_log_xvattr((lr_attr_t *)start, xvap);
605 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize);
606 }
607
608 /*
609 * Now stick on domain information if any on end
610 */
611
612 if (fuidp)
613 (void) zfs_log_fuid_domains(fuidp, start);
614
615 itx->itx_sync = (zp->z_sync_cnt != 0);
616 seq = zil_itx_assign(zilog, itx, tx);
617 zp->z_last_itx = seq;
618 }
619
620 /*
621 * zfs_log_acl() handles TX_ACL transactions.
622 */
623 void
zfs_log_acl(zilog_t * zilog,dmu_tx_t * tx,znode_t * zp,vsecattr_t * vsecp,zfs_fuid_info_t * fuidp)624 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
625 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp)
626 {
627 itx_t *itx;
628 uint64_t seq;
629 lr_acl_v0_t *lrv0;
630 lr_acl_t *lr;
631 int txtype;
632 int lrsize;
633 size_t txsize;
634 size_t aclbytes = vsecp->vsa_aclentsz;
635
636 if (zil_replaying(zilog, tx) || zp->z_unlinked)
637 return;
638
639 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ?
640 TX_ACL_V0 : TX_ACL;
641
642 if (txtype == TX_ACL)
643 lrsize = sizeof (*lr);
644 else
645 lrsize = sizeof (*lrv0);
646
647 txsize = lrsize +
648 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) +
649 (fuidp ? fuidp->z_domain_str_sz : 0) +
650 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0);
651
652 itx = zil_itx_create(txtype, txsize);
653
654 lr = (lr_acl_t *)&itx->itx_lr;
655 lr->lr_foid = zp->z_id;
656 if (txtype == TX_ACL) {
657 lr->lr_acl_bytes = aclbytes;
658 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
659 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
660 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS)
661 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
662 else
663 lr->lr_acl_flags = 0;
664 }
665 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt;
666
667 if (txtype == TX_ACL_V0) {
668 lrv0 = (lr_acl_v0_t *)lr;
669 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes);
670 } else {
671 void *start = (ace_t *)(lr + 1);
672
673 bcopy(vsecp->vsa_aclentp, start, aclbytes);
674
675 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes);
676
677 if (fuidp) {
678 start = zfs_log_fuid_ids(fuidp, start);
679 (void) zfs_log_fuid_domains(fuidp, start);
680 }
681 }
682
683 itx->itx_sync = (zp->z_sync_cnt != 0);
684 seq = zil_itx_assign(zilog, itx, tx);
685 zp->z_last_itx = seq;
686 }
687