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
70int
71zfs_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 */
110static void
111zfs_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		ASSERT(!XVA_ISSET_REQ(xvap, XAT_PROJID));
171
172		bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
173	} else if (XVA_ISSET_REQ(xvap, XAT_PROJID)) {
174		/*
175		 * XAT_PROJID and XAT_AV_SCANSTAMP will never be valid
176		 * at the same time, so we can share the same space.
177		 */
178		bcopy(&xoap->xoa_projid, scanstamp, sizeof (uint64_t));
179	}
180	if (XVA_ISSET_REQ(xvap, XAT_REPARSE))
181		*attrs |= (xoap->xoa_reparse == 0) ? 0 :
182		    XAT0_REPARSE;
183	if (XVA_ISSET_REQ(xvap, XAT_OFFLINE))
184		*attrs |= (xoap->xoa_offline == 0) ? 0 :
185		    XAT0_OFFLINE;
186	if (XVA_ISSET_REQ(xvap, XAT_SPARSE))
187		*attrs |= (xoap->xoa_sparse == 0) ? 0 :
188		    XAT0_SPARSE;
189	if (XVA_ISSET_REQ(xvap, XAT_PROJINHERIT))
190		*attrs |= (xoap->xoa_projinherit == 0) ? 0 :
191		    XAT0_PROJINHERIT;
192}
193
194static void *
195zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
196{
197	zfs_fuid_t *zfuid;
198	uint64_t *fuidloc = start;
199
200	/* First copy in the ACE FUIDs */
201	for (zfuid = list_head(&fuidp->z_fuids); zfuid;
202	    zfuid = list_next(&fuidp->z_fuids, zfuid)) {
203		*fuidloc++ = zfuid->z_logfuid;
204	}
205	return (fuidloc);
206}
207
208
209static void *
210zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
211{
212	zfs_fuid_domain_t *zdomain;
213
214	/* now copy in the domain info, if any */
215	if (fuidp->z_domain_str_sz != 0) {
216		for (zdomain = list_head(&fuidp->z_domains); zdomain;
217		    zdomain = list_next(&fuidp->z_domains, zdomain)) {
218			bcopy((void *)zdomain->z_domain, start,
219			    strlen(zdomain->z_domain) + 1);
220			start = (caddr_t)start +
221			    strlen(zdomain->z_domain) + 1;
222		}
223	}
224	return (start);
225}
226
227/*
228 * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and
229 * TK_MKXATTR transactions.
230 *
231 * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID
232 * domain information appended prior to the name.  In this case the
233 * uid/gid in the log record will be a log centric FUID.
234 *
235 * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that
236 * may contain attributes, ACL and optional fuid information.
237 *
238 * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify
239 * and ACL and normal users/groups in the ACEs.
240 *
241 * There may be an optional xvattr attribute information similar
242 * to zfs_log_setattr.
243 *
244 * Also, after the file name "domain" strings may be appended.
245 */
246void
247zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
248    znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp,
249    zfs_fuid_info_t *fuidp, vattr_t *vap)
250{
251	itx_t *itx;
252	lr_create_t *lr;
253	lr_acl_create_t *lracl;
254	size_t aclsize = (vsecp != NULL) ? vsecp->vsa_aclentsz : 0;
255	size_t xvatsize = 0;
256	size_t txsize;
257	xvattr_t *xvap = (xvattr_t *)vap;
258	void *end;
259	size_t lrsize;
260	size_t namesize = strlen(name) + 1;
261	size_t fuidsz = 0;
262
263	if (zil_replaying(zilog, tx))
264		return;
265
266	/*
267	 * If we have FUIDs present then add in space for
268	 * domains and ACE fuid's if any.
269	 */
270	if (fuidp) {
271		fuidsz += fuidp->z_domain_str_sz;
272		fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
273	}
274
275	if (vap->va_mask & AT_XVATTR)
276		xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
277
278	if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
279	    (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
280	    (int)txtype == TX_MKXATTR) {
281		txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
282		lrsize = sizeof (*lr);
283	} else {
284		txsize =
285		    sizeof (lr_acl_create_t) + namesize + fuidsz +
286		    ZIL_ACE_LENGTH(aclsize) + xvatsize;
287		lrsize = sizeof (lr_acl_create_t);
288	}
289
290	itx = zil_itx_create(txtype, txsize);
291
292	lr = (lr_create_t *)&itx->itx_lr;
293	lr->lr_doid = dzp->z_id;
294	lr->lr_foid = zp->z_id;
295	/* Store dnode slot count in 8 bits above object id. */
296	LR_FOID_SET_SLOTS(lr->lr_foid, zp->z_dnodesize >> DNODE_SHIFT);
297	lr->lr_mode = zp->z_mode;
298	if (!IS_EPHEMERAL(zp->z_uid)) {
299		lr->lr_uid = (uint64_t)zp->z_uid;
300	} else {
301		lr->lr_uid = fuidp->z_fuid_owner;
302	}
303	if (!IS_EPHEMERAL(zp->z_gid)) {
304		lr->lr_gid = (uint64_t)zp->z_gid;
305	} else {
306		lr->lr_gid = fuidp->z_fuid_group;
307	}
308	(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
309	    sizeof (uint64_t));
310	(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
311	    lr->lr_crtime, sizeof (uint64_t) * 2);
312
313	if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev,
314	    sizeof (lr->lr_rdev)) != 0)
315		lr->lr_rdev = 0;
316
317	/*
318	 * Fill in xvattr info if any
319	 */
320	if (vap->va_mask & AT_XVATTR) {
321		zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
322		end = (caddr_t)lr + lrsize + xvatsize;
323	} else {
324		end = (caddr_t)lr + lrsize;
325	}
326
327	/* Now fill in any ACL info */
328
329	if (vsecp) {
330		lracl = (lr_acl_create_t *)&itx->itx_lr;
331		lracl->lr_aclcnt = vsecp->vsa_aclcnt;
332		lracl->lr_acl_bytes = aclsize;
333		lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
334		lracl->lr_fuidcnt  = fuidp ? fuidp->z_fuid_cnt : 0;
335		if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
336			lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
337		else
338			lracl->lr_acl_flags = 0;
339
340		bcopy(vsecp->vsa_aclentp, end, aclsize);
341		end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
342	}
343
344	/* drop in FUID info */
345	if (fuidp) {
346		end = zfs_log_fuid_ids(fuidp, end);
347		end = zfs_log_fuid_domains(fuidp, end);
348	}
349	/*
350	 * Now place file name in log record
351	 */
352	bcopy(name, end, namesize);
353
354	zil_itx_assign(zilog, itx, tx);
355}
356
357void zil_remove_async(zilog_t *zilog, uint64_t oid);
358
359/*
360 * Handles both TX_REMOVE and TX_RMDIR transactions.
361 */
362void
363zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
364    znode_t *dzp, char *name, uint64_t foid, boolean_t unlinked)
365{
366	itx_t *itx;
367	lr_remove_t *lr;
368	size_t namesize = strlen(name) + 1;
369
370	if (zil_replaying(zilog, tx))
371		return;
372
373	itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
374	lr = (lr_remove_t *)&itx->itx_lr;
375	lr->lr_doid = dzp->z_id;
376	bcopy(name, (char *)(lr + 1), namesize);
377
378	itx->itx_oid = foid;
379
380	/*
381	 * Object ids can be re-instantiated in the next txg so
382	 * remove any async transactions to avoid future leaks.
383	 * This can happen if a fsync occurs on the re-instantiated
384	 * object for a WR_INDIRECT or WR_NEED_COPY write, which gets
385	 * the new file data and flushes a write record for the old object.
386	 */
387	if (unlinked) {
388		ASSERT((txtype & ~TX_CI) == TX_REMOVE);
389		zil_remove_async(zilog, foid);
390	}
391	zil_itx_assign(zilog, itx, tx);
392}
393
394/*
395 * Handles TX_LINK transactions.
396 */
397void
398zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
399    znode_t *dzp, znode_t *zp, char *name)
400{
401	itx_t *itx;
402	lr_link_t *lr;
403	size_t namesize = strlen(name) + 1;
404
405	if (zil_replaying(zilog, tx))
406		return;
407
408	itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
409	lr = (lr_link_t *)&itx->itx_lr;
410	lr->lr_doid = dzp->z_id;
411	lr->lr_link_obj = zp->z_id;
412	bcopy(name, (char *)(lr + 1), namesize);
413
414	zil_itx_assign(zilog, itx, tx);
415}
416
417/*
418 * Handles TX_SYMLINK transactions.
419 */
420void
421zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
422    znode_t *dzp, znode_t *zp, char *name, char *link)
423{
424	itx_t *itx;
425	lr_create_t *lr;
426	size_t namesize = strlen(name) + 1;
427	size_t linksize = strlen(link) + 1;
428
429	if (zil_replaying(zilog, tx))
430		return;
431
432	itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize);
433	lr = (lr_create_t *)&itx->itx_lr;
434	lr->lr_doid = dzp->z_id;
435	lr->lr_foid = zp->z_id;
436	lr->lr_uid = zp->z_uid;
437	lr->lr_gid = zp->z_gid;
438	lr->lr_mode = zp->z_mode;
439	(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen,
440	    sizeof (uint64_t));
441	(void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs),
442	    lr->lr_crtime, sizeof (uint64_t) * 2);
443	bcopy(name, (char *)(lr + 1), namesize);
444	bcopy(link, (char *)(lr + 1) + namesize, linksize);
445
446	zil_itx_assign(zilog, itx, tx);
447}
448
449/*
450 * Handles TX_RENAME transactions.
451 */
452void
453zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
454    znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp)
455{
456	itx_t *itx;
457	lr_rename_t *lr;
458	size_t snamesize = strlen(sname) + 1;
459	size_t dnamesize = strlen(dname) + 1;
460
461	if (zil_replaying(zilog, tx))
462		return;
463
464	itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize);
465	lr = (lr_rename_t *)&itx->itx_lr;
466	lr->lr_sdoid = sdzp->z_id;
467	lr->lr_tdoid = tdzp->z_id;
468	bcopy(sname, (char *)(lr + 1), snamesize);
469	bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize);
470	itx->itx_oid = szp->z_id;
471
472	zil_itx_assign(zilog, itx, tx);
473}
474
475/*
476 * Handles TX_WRITE transactions.
477 */
478ssize_t zfs_immediate_write_sz = 32768;
479
480void
481zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
482    znode_t *zp, offset_t off, ssize_t resid, int ioflag)
483{
484	uint32_t blocksize = zp->z_blksz;
485	itx_wr_state_t write_state;
486	uintptr_t fsync_cnt;
487
488	if (zil_replaying(zilog, tx) || zp->z_unlinked)
489		return;
490
491	if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT)
492		write_state = WR_INDIRECT;
493	else if (!spa_has_slogs(zilog->zl_spa) &&
494	    resid >= zfs_immediate_write_sz)
495		write_state = WR_INDIRECT;
496	else if (ioflag & (FSYNC | FDSYNC))
497		write_state = WR_COPIED;
498	else
499		write_state = WR_NEED_COPY;
500
501	if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
502		(void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
503	}
504
505	while (resid) {
506		itx_t *itx;
507		lr_write_t *lr;
508		itx_wr_state_t wr_state = write_state;
509		ssize_t len = resid;
510
511		if (wr_state == WR_COPIED && resid > ZIL_MAX_COPIED_DATA)
512			wr_state = WR_NEED_COPY;
513		else if (wr_state == WR_INDIRECT)
514			len = MIN(blocksize - P2PHASE(off, blocksize), resid);
515
516		itx = zil_itx_create(txtype, sizeof (*lr) +
517		    (wr_state == WR_COPIED ? len : 0));
518		lr = (lr_write_t *)&itx->itx_lr;
519		if (wr_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
520		    zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) {
521			zil_itx_destroy(itx);
522			itx = zil_itx_create(txtype, sizeof (*lr));
523			lr = (lr_write_t *)&itx->itx_lr;
524			wr_state = WR_NEED_COPY;
525		}
526
527		itx->itx_wr_state = wr_state;
528		lr->lr_foid = zp->z_id;
529		lr->lr_offset = off;
530		lr->lr_length = len;
531		lr->lr_blkoff = 0;
532		BP_ZERO(&lr->lr_blkptr);
533
534		itx->itx_private = zp->z_zfsvfs;
535
536		if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) &&
537		    (fsync_cnt == 0))
538			itx->itx_sync = B_FALSE;
539
540		zil_itx_assign(zilog, itx, tx);
541
542		off += len;
543		resid -= len;
544	}
545}
546
547/*
548 * Handles TX_TRUNCATE transactions.
549 */
550void
551zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
552    znode_t *zp, uint64_t off, uint64_t len)
553{
554	itx_t *itx;
555	lr_truncate_t *lr;
556
557	if (zil_replaying(zilog, tx) || zp->z_unlinked)
558		return;
559
560	itx = zil_itx_create(txtype, sizeof (*lr));
561	lr = (lr_truncate_t *)&itx->itx_lr;
562	lr->lr_foid = zp->z_id;
563	lr->lr_offset = off;
564	lr->lr_length = len;
565
566	itx->itx_sync = (zp->z_sync_cnt != 0);
567	zil_itx_assign(zilog, itx, tx);
568}
569
570/*
571 * Handles TX_SETATTR transactions.
572 */
573void
574zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype,
575    znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp)
576{
577	itx_t		*itx;
578	lr_setattr_t	*lr;
579	xvattr_t	*xvap = (xvattr_t *)vap;
580	size_t		recsize = sizeof (lr_setattr_t);
581	void		*start;
582
583	if (zil_replaying(zilog, tx) || zp->z_unlinked)
584		return;
585
586	/*
587	 * If XVATTR set, then log record size needs to allow
588	 * for lr_attr_t + xvattr mask, mapsize and create time
589	 * plus actual attribute values
590	 */
591	if (vap->va_mask & AT_XVATTR)
592		recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize);
593
594	if (fuidp)
595		recsize += fuidp->z_domain_str_sz;
596
597	itx = zil_itx_create(txtype, recsize);
598	lr = (lr_setattr_t *)&itx->itx_lr;
599	lr->lr_foid = zp->z_id;
600	lr->lr_mask = (uint64_t)mask_applied;
601	lr->lr_mode = (uint64_t)vap->va_mode;
602	if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid))
603		lr->lr_uid = fuidp->z_fuid_owner;
604	else
605		lr->lr_uid = (uint64_t)vap->va_uid;
606
607	if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid))
608		lr->lr_gid = fuidp->z_fuid_group;
609	else
610		lr->lr_gid = (uint64_t)vap->va_gid;
611
612	lr->lr_size = (uint64_t)vap->va_size;
613	ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime);
614	ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime);
615	start = (lr_setattr_t *)(lr + 1);
616	if (vap->va_mask & AT_XVATTR) {
617		zfs_log_xvattr((lr_attr_t *)start, xvap);
618		start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize);
619	}
620
621	/*
622	 * Now stick on domain information if any on end
623	 */
624
625	if (fuidp)
626		(void) zfs_log_fuid_domains(fuidp, start);
627
628	itx->itx_sync = (zp->z_sync_cnt != 0);
629	zil_itx_assign(zilog, itx, tx);
630}
631
632/*
633 * Handles TX_ACL transactions.
634 */
635void
636zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
637    vsecattr_t *vsecp, zfs_fuid_info_t *fuidp)
638{
639	itx_t *itx;
640	lr_acl_v0_t *lrv0;
641	lr_acl_t *lr;
642	int txtype;
643	int lrsize;
644	size_t txsize;
645	size_t aclbytes = vsecp->vsa_aclentsz;
646
647	if (zil_replaying(zilog, tx) || zp->z_unlinked)
648		return;
649
650	txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ?
651	    TX_ACL_V0 : TX_ACL;
652
653	if (txtype == TX_ACL)
654		lrsize = sizeof (*lr);
655	else
656		lrsize = sizeof (*lrv0);
657
658	txsize = lrsize +
659	    ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) +
660	    (fuidp ? fuidp->z_domain_str_sz : 0) +
661	    sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0);
662
663	itx = zil_itx_create(txtype, txsize);
664
665	lr = (lr_acl_t *)&itx->itx_lr;
666	lr->lr_foid = zp->z_id;
667	if (txtype == TX_ACL) {
668		lr->lr_acl_bytes = aclbytes;
669		lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
670		lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
671		if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS)
672			lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
673		else
674			lr->lr_acl_flags = 0;
675	}
676	lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt;
677
678	if (txtype == TX_ACL_V0) {
679		lrv0 = (lr_acl_v0_t *)lr;
680		bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes);
681	} else {
682		void *start = (ace_t *)(lr + 1);
683
684		bcopy(vsecp->vsa_aclentp, start, aclbytes);
685
686		start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes);
687
688		if (fuidp) {
689			start = zfs_log_fuid_ids(fuidp, start);
690			(void) zfs_log_fuid_domains(fuidp, start);
691		}
692	}
693
694	itx->itx_sync = (zp->z_sync_cnt != 0);
695	zil_itx_assign(zilog, itx, tx);
696}
697