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