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 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 } 193 194 static void * 195 zfs_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 } 207 208 209 static void * 210 zfs_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 */ 246 void 247 zfs_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 } 356 357 void zil_remove_async(zilog_t *zilog, uint64_t oid); 358 359 /* 360 * Handles both TX_REMOVE and TX_RMDIR transactions. 361 */ 362 void 363 zfs_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 */ 397 void 398 zfs_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 */ 420 void 421 zfs_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 */ 452 void 453 zfs_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 */ 478 ssize_t zfs_immediate_write_sz = 32768; 479 480 void 481 zfs_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 */ 550 void 551 zfs_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 */ 573 void 574 zfs_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 */ 635 void 636 zfs_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