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/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/acl.h>
43 #include <sys/dmu.h>
44 #include <sys/spa.h>
45 #include <sys/zfs_fuid.h>
46 #include <sys/dsl_dataset.h>
47
48 /*
49 * These zfs_log_* functions must be called within a dmu tx, in one
50 * of 2 contexts depending on zilog->z_replay:
51 *
52 * Non replay mode
53 * ---------------
54 * We need to record the transaction so that if it is committed to
55 * the Intent Log then it can be replayed. An intent log transaction
56 * structure (itx_t) is allocated and all the information necessary to
57 * possibly replay the transaction is saved in it. The itx is then assigned
58 * a sequence number and inserted in the in-memory list anchored in the zilog.
59 *
60 * Replay mode
61 * -----------
62 * We need to mark the intent log record as replayed in the log header.
63 * This is done in the same transaction as the replay so that they
64 * commit atomically.
65 */
66
67 int
zfs_log_create_txtype(zil_create_t type,vsecattr_t * vsecp,vattr_t * vap)68 zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap)
69 {
70 int isxvattr = (vap->va_mask & AT_XVATTR);
71 switch (type) {
72 case Z_FILE:
73 if (vsecp == NULL && !isxvattr)
74 return (TX_CREATE);
75 if (vsecp && isxvattr)
76 #ifdef TODO
77 return (TX_CREATE_ACL_ATTR);
78 #else
79 panic("%s:%u: unsupported condition", __func__, __LINE__);
80 #endif
81 if (vsecp)
82 return (TX_CREATE_ACL);
83 else
84 return (TX_CREATE_ATTR);
85 /*NOTREACHED*/
86 case Z_DIR:
87 if (vsecp == NULL && !isxvattr)
88 return (TX_MKDIR);
89 if (vsecp && isxvattr)
90 #ifdef TODO
91 return (TX_MKDIR_ACL_ATTR);
92 #else
93 panic("%s:%u: unsupported condition", __func__, __LINE__);
94 #endif
95 if (vsecp)
96 return (TX_MKDIR_ACL);
97 else
98 return (TX_MKDIR_ATTR);
99 case Z_XATTRDIR:
100 return (TX_MKXATTR);
101 }
102 ASSERT(0);
103 return (TX_MAX_TYPE);
104 }
105
106 /*
107 * build up the log data necessary for logging xvattr_t
108 * First lr_attr_t is initialized. following the lr_attr_t
109 * is the mapsize and attribute bitmap copied from the xvattr_t.
110 * Following the bitmap and bitmapsize two 64 bit words are reserved
111 * for the create time which may be set. Following the create time
112 * records a single 64 bit integer which has the bits to set on
113 * replay for the xvattr.
114 */
115 static void
zfs_log_xvattr(lr_attr_t * lrattr,xvattr_t * xvap)116 zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
117 {
118 uint32_t *bitmap;
119 uint64_t *attrs;
120 uint64_t *crtime;
121 xoptattr_t *xoap;
122 void *scanstamp;
123 int i;
124
125 xoap = xva_getxoptattr(xvap);
126 ASSERT(xoap);
127
128 lrattr->lr_attr_masksize = xvap->xva_mapsize;
129 bitmap = &lrattr->lr_attr_bitmap;
130 for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) {
131 *bitmap = xvap->xva_reqattrmap[i];
132 }
133
134 /* Now pack the attributes up in a single uint64_t */
135 attrs = (uint64_t *)bitmap;
136 crtime = attrs + 1;
137 scanstamp = (caddr_t)(crtime + 2);
138 *attrs = 0;
139 if (XVA_ISSET_REQ(xvap, XAT_READONLY))
140 *attrs |= (xoap->xoa_readonly == 0) ? 0 :
141 XAT0_READONLY;
142 if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
143 *attrs |= (xoap->xoa_hidden == 0) ? 0 :
144 XAT0_HIDDEN;
145 if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
146 *attrs |= (xoap->xoa_system == 0) ? 0 :
147 XAT0_SYSTEM;
148 if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
149 *attrs |= (xoap->xoa_archive == 0) ? 0 :
150 XAT0_ARCHIVE;
151 if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
152 *attrs |= (xoap->xoa_immutable == 0) ? 0 :
153 XAT0_IMMUTABLE;
154 if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
155 *attrs |= (xoap->xoa_nounlink == 0) ? 0 :
156 XAT0_NOUNLINK;
157 if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
158 *attrs |= (xoap->xoa_appendonly == 0) ? 0 :
159 XAT0_APPENDONLY;
160 if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
161 *attrs |= (xoap->xoa_opaque == 0) ? 0 :
162 XAT0_APPENDONLY;
163 if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
164 *attrs |= (xoap->xoa_nodump == 0) ? 0 :
165 XAT0_NODUMP;
166 if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
167 *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 :
168 XAT0_AV_QUARANTINED;
169 if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
170 *attrs |= (xoap->xoa_av_modified == 0) ? 0 :
171 XAT0_AV_MODIFIED;
172 if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
173 ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime);
174 if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
175 bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
176 if (XVA_ISSET_REQ(xvap, XAT_REPARSE))
177 *attrs |= (xoap->xoa_reparse == 0) ? 0 :
178 XAT0_REPARSE;
179 if (XVA_ISSET_REQ(xvap, XAT_OFFLINE))
180 *attrs |= (xoap->xoa_offline == 0) ? 0 :
181 XAT0_OFFLINE;
182 if (XVA_ISSET_REQ(xvap, XAT_SPARSE))
183 *attrs |= (xoap->xoa_sparse == 0) ? 0 :
184 XAT0_SPARSE;
185 }
186
187 static void *
zfs_log_fuid_ids(zfs_fuid_info_t * fuidp,void * start)188 zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
189 {
190 zfs_fuid_t *zfuid;
191 uint64_t *fuidloc = start;
192
193 /* First copy in the ACE FUIDs */
194 for (zfuid = list_head(&fuidp->z_fuids); zfuid;
195 zfuid = list_next(&fuidp->z_fuids, zfuid)) {
196 *fuidloc++ = zfuid->z_logfuid;
197 }
198 return (fuidloc);
199 }
200
201
202 static void *
zfs_log_fuid_domains(zfs_fuid_info_t * fuidp,void * start)203 zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
204 {
205 zfs_fuid_domain_t *zdomain;
206
207 /* now copy in the domain info, if any */
208 if (fuidp->z_domain_str_sz != 0) {
209 for (zdomain = list_head(&fuidp->z_domains); zdomain;
210 zdomain = list_next(&fuidp->z_domains, zdomain)) {
211 bcopy((void *)zdomain->z_domain, start,
212 strlen(zdomain->z_domain) + 1);
213 start = (caddr_t)start +
214 strlen(zdomain->z_domain) + 1;
215 }
216 }
217 return (start);
218 }
219
220 /*
221 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and
222 * TK_MKXATTR transactions.
223 *
224 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID
225 * domain information appended prior to the name. In this case the
226 * uid/gid in the log record will be a log centric FUID.
227 *
228 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that
229 * may contain attributes, ACL and optional fuid information.
230 *
231 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify
232 * and ACL and normal users/groups in the ACEs.
233 *
234 * There may be an optional xvattr attribute information similar
235 * to zfs_log_setattr.
236 *
237 * Also, after the file name "domain" strings may be appended.
238 */
239 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)240 zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
241 znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp,
242 zfs_fuid_info_t *fuidp, vattr_t *vap)
243 {
244 itx_t *itx;
245 lr_create_t *lr;
246 lr_acl_create_t *lracl;
247 size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0;
248 size_t xvatsize = 0;
249 size_t txsize;
250 xvattr_t *xvap = (xvattr_t *)vap;
251 void *end;
252 size_t lrsize;
253 size_t namesize = strlen(name) + 1;
254 size_t fuidsz = 0;
255
256 if (zil_replaying(zilog, tx))
257 return;
258
259 /*
260 * If we have FUIDs present then add in space for
261 * domains and ACE fuid's if any.
262 */
263 if (fuidp) {
264 fuidsz += fuidp->z_domain_str_sz;
265 fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
266 }
267
268 if (vap->va_mask & AT_XVATTR)
269 xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
270
271 if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
272 (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
273 (int)txtype == TX_MKXATTR) {
274 txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
275 lrsize = sizeof (*lr);
276 } else {
277 txsize =
278 sizeof (lr_acl_create_t) + namesize + fuidsz +
279 ZIL_ACE_LENGTH(aclsize) + xvatsize;
280 lrsize = sizeof (lr_acl_create_t);
281 }
282
283 itx = zil_itx_create(txtype, txsize);
284
285 lr = (lr_create_t *)&itx->itx_lr;
286 lr->lr_doid = dzp->z_id;
287 lr->lr_foid = zp->z_id;
288 lr->lr_mode = zp->z_mode;
289 if (!IS_EPHEMERAL(zp->z_uid)) {
290 lr->lr_uid = (uint64_t)zp->z_uid;
291 } else {
292 lr->lr_uid = fuidp->z_fuid_owner;
293 }
294 if (!IS_EPHEMERAL(zp->z_gid)) {
295 lr->lr_gid = (uint64_t)zp->z_gid;
296 } else {
297 lr->lr_gid = fuidp->z_fuid_group;
298 }
299 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
300 sizeof (uint64_t));
301 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
302 lr->lr_crtime, sizeof (uint64_t) * 2);
303
304 if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev,
305 sizeof (lr->lr_rdev)) != 0)
306 lr->lr_rdev = 0;
307
308 /*
309 * Fill in xvattr info if any
310 */
311 if (vap->va_mask & AT_XVATTR) {
312 zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
313 end = (caddr_t)lr + lrsize + xvatsize;
314 } else {
315 end = (caddr_t)lr + lrsize;
316 }
317
318 /* Now fill in any ACL info */
319
320 if (vsecp) {
321 lracl = (lr_acl_create_t *)&itx->itx_lr;
322 lracl->lr_aclcnt = vsecp->vsa_aclcnt;
323 lracl->lr_acl_bytes = aclsize;
324 lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
325 lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
326 if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
327 lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
328 else
329 lracl->lr_acl_flags = 0;
330
331 bcopy(vsecp->vsa_aclentp, end, aclsize);
332 end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
333 }
334
335 /* drop in FUID info */
336 if (fuidp) {
337 end = zfs_log_fuid_ids(fuidp, end);
338 end = zfs_log_fuid_domains(fuidp, end);
339 }
340 /*
341 * Now place file name in log record
342 */
343 bcopy(name, end, namesize);
344
345 zil_itx_assign(zilog, itx, tx);
346 }
347
348 /*
349 * Handles both TX_REMOVE and TX_RMDIR transactions.
350 */
351 void
zfs_log_remove(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,char * name,uint64_t foid)352 zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
353 znode_t *dzp, char *name, uint64_t foid)
354 {
355 itx_t *itx;
356 lr_remove_t *lr;
357 size_t namesize = strlen(name) + 1;
358
359 if (zil_replaying(zilog, tx))
360 return;
361
362 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
363 lr = (lr_remove_t *)&itx->itx_lr;
364 lr->lr_doid = dzp->z_id;
365 bcopy(name, (char *)(lr + 1), namesize);
366
367 itx->itx_oid = foid;
368
369 zil_itx_assign(zilog, itx, tx);
370 }
371
372 /*
373 * Handles TX_LINK transactions.
374 */
375 void
zfs_log_link(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name)376 zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
377 znode_t *dzp, znode_t *zp, char *name)
378 {
379 itx_t *itx;
380 lr_link_t *lr;
381 size_t namesize = strlen(name) + 1;
382
383 if (zil_replaying(zilog, tx))
384 return;
385
386 itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
387 lr = (lr_link_t *)&itx->itx_lr;
388 lr->lr_doid = dzp->z_id;
389 lr->lr_link_obj = zp->z_id;
390 bcopy(name, (char *)(lr + 1), namesize);
391
392 zil_itx_assign(zilog, itx, tx);
393 }
394
395 /*
396 * Handles TX_SYMLINK transactions.
397 */
398 void
zfs_log_symlink(zilog_t * zilog,dmu_tx_t * tx,uint64_t txtype,znode_t * dzp,znode_t * zp,char * name,char * link)399 zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
400 znode_t *dzp, znode_t *zp, char *name, char *link)
401 {
402 itx_t *itx;
403 lr_create_t *lr;
404 size_t namesize = strlen(name) + 1;
405 size_t linksize = strlen(link) + 1;
406
407 if (zil_replaying(zilog, tx))
408 return;
409
410 itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize);
411 lr = (lr_create_t *)&itx->itx_lr;
412 lr->lr_doid = dzp->z_id;
413 lr->lr_foid = zp->z_id;
414 lr->lr_uid = zp->z_uid;
415 lr->lr_gid = zp->z_gid;
416 lr->lr_mode = zp->z_mode;
417 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
418 sizeof (uint64_t));
419 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
420 lr->lr_crtime, sizeof (uint64_t) * 2);
421 bcopy(name, (char *)(lr + 1), namesize);
422 bcopy(link, (char *)(lr + 1) + namesize, linksize);
423
424 zil_itx_assign(zilog, itx, tx);
425 }
426
427 /*
428 * Handles TX_RENAME transactions.
429 */
430 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)431 zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
432 znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp)
433 {
434 itx_t *itx;
435 lr_rename_t *lr;
436 size_t snamesize = strlen(sname) + 1;
437 size_t dnamesize = strlen(dname) + 1;
438
439 if (zil_replaying(zilog, tx))
440 return;
441
442 itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize);
443 lr = (lr_rename_t *)&itx->itx_lr;
444 lr->lr_sdoid = sdzp->z_id;
445 lr->lr_tdoid = tdzp->z_id;
446 bcopy(sname, (char *)(lr + 1), snamesize);
447 bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize);
448 itx->itx_oid = szp->z_id;
449
450 zil_itx_assign(zilog, itx, tx);
451 }
452
453 /*
454 * Handles TX_WRITE transactions.
455 */
456 ssize_t zfs_immediate_write_sz = 32768;
457 #ifdef _KERNEL
458 SYSCTL_DECL(_vfs_zfs);
459 SYSCTL_LONG(_vfs_zfs, OID_AUTO, immediate_write_sz, CTLFLAG_RWTUN,
460 &zfs_immediate_write_sz, 0, "Minimal size for indirect log write");
461 #endif
462
463 void
zfs_log_write(zilog_t * zilog,dmu_tx_t * tx,int txtype,znode_t * zp,offset_t off,ssize_t resid,int ioflag)464 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
465 znode_t *zp, offset_t off, ssize_t resid, int ioflag)
466 {
467 uint32_t blocksize = zp->z_blksz;
468 itx_wr_state_t write_state;
469 uintptr_t fsync_cnt;
470
471 if (zil_replaying(zilog, tx) || zp->z_unlinked)
472 return;
473
474 if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
475 write_state = WR_INDIRECT;
476 else if (!spa_has_slogs(zilog->zl_spa) &&
477 resid >= zfs_immediate_write_sz)
478 write_state = WR_INDIRECT;
479 else if (ioflag & (FSYNC | FDSYNC))
480 write_state = WR_COPIED;
481 else
482 write_state = WR_NEED_COPY;
483
484 if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
485 (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
486 }
487
488 while (resid) {
489 itx_t *itx;
490 lr_write_t *lr;
491 itx_wr_state_t wr_state = write_state;
492 ssize_t len = resid;
493
494 if (wr_state == WR_COPIED && resid > ZIL_MAX_COPIED_DATA)
495 wr_state = WR_NEED_COPY;
496 else if (wr_state == WR_INDIRECT)
497 len = MIN(blocksize - P2PHASE(off, blocksize), resid);
498
499 itx = zil_itx_create(txtype, sizeof (*lr) +
500 (wr_state == WR_COPIED ? len : 0));
501 lr = (lr_write_t *)&itx->itx_lr;
502 if (wr_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
503 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) {
504 zil_itx_destroy(itx);
505 itx = zil_itx_create(txtype, sizeof (*lr));
506 lr = (lr_write_t *)&itx->itx_lr;
507 wr_state = WR_NEED_COPY;
508 }
509
510 itx->itx_wr_state = wr_state;
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