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 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 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 * 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 * 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 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 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 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 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 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 464 zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, 465 znode_t *zp, offset_t off, ssize_t resid, boolean_t commit) 466 { 467 uint32_t blocksize = zp->z_blksz; 468 itx_wr_state_t write_state; 469 470 if (zil_replaying(zilog, tx) || zp->z_unlinked) 471 return; 472 473 if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) 474 write_state = WR_INDIRECT; 475 else if (!spa_has_slogs(zilog->zl_spa) && 476 resid >= zfs_immediate_write_sz) 477 write_state = WR_INDIRECT; 478 else if (commit) 479 write_state = WR_COPIED; 480 else 481 write_state = WR_NEED_COPY; 482 483 while (resid) { 484 itx_t *itx; 485 lr_write_t *lr; 486 itx_wr_state_t wr_state = write_state; 487 ssize_t len = resid; 488 489 if (wr_state == WR_COPIED && resid > ZIL_MAX_COPIED_DATA) 490 wr_state = WR_NEED_COPY; 491 else if (wr_state == WR_INDIRECT) 492 len = MIN(blocksize - P2PHASE(off, blocksize), resid); 493 494 itx = zil_itx_create(txtype, sizeof (*lr) + 495 (wr_state == WR_COPIED ? len : 0)); 496 lr = (lr_write_t *)&itx->itx_lr; 497 if (wr_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, 498 zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { 499 zil_itx_destroy(itx); 500 itx = zil_itx_create(txtype, sizeof (*lr)); 501 lr = (lr_write_t *)&itx->itx_lr; 502 wr_state = WR_NEED_COPY; 503 } 504 505 itx->itx_wr_state = wr_state; 506 lr->lr_foid = zp->z_id; 507 lr->lr_offset = off; 508 lr->lr_length = len; 509 lr->lr_blkoff = 0; 510 BP_ZERO(&lr->lr_blkptr); 511 512 itx->itx_private = zp->z_zfsvfs; 513 itx->itx_sync = (zp->z_sync_cnt != 0); 514 515 zil_itx_assign(zilog, itx, tx); 516 517 off += len; 518 resid -= len; 519 } 520 } 521 522 /* 523 * Handles TX_TRUNCATE transactions. 524 */ 525 void 526 zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, 527 znode_t *zp, uint64_t off, uint64_t len) 528 { 529 itx_t *itx; 530 lr_truncate_t *lr; 531 532 if (zil_replaying(zilog, tx) || zp->z_unlinked) 533 return; 534 535 itx = zil_itx_create(txtype, sizeof (*lr)); 536 lr = (lr_truncate_t *)&itx->itx_lr; 537 lr->lr_foid = zp->z_id; 538 lr->lr_offset = off; 539 lr->lr_length = len; 540 541 itx->itx_sync = (zp->z_sync_cnt != 0); 542 zil_itx_assign(zilog, itx, tx); 543 } 544 545 /* 546 * Handles TX_SETATTR transactions. 547 */ 548 void 549 zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, 550 znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) 551 { 552 itx_t *itx; 553 lr_setattr_t *lr; 554 xvattr_t *xvap = (xvattr_t *)vap; 555 size_t recsize = sizeof (lr_setattr_t); 556 void *start; 557 558 if (zil_replaying(zilog, tx) || zp->z_unlinked) 559 return; 560 561 /* 562 * If XVATTR set, then log record size needs to allow 563 * for lr_attr_t + xvattr mask, mapsize and create time 564 * plus actual attribute values 565 */ 566 if (vap->va_mask & AT_XVATTR) 567 recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); 568 569 if (fuidp) 570 recsize += fuidp->z_domain_str_sz; 571 572 itx = zil_itx_create(txtype, recsize); 573 lr = (lr_setattr_t *)&itx->itx_lr; 574 lr->lr_foid = zp->z_id; 575 lr->lr_mask = (uint64_t)mask_applied; 576 lr->lr_mode = (uint64_t)vap->va_mode; 577 if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) 578 lr->lr_uid = fuidp->z_fuid_owner; 579 else 580 lr->lr_uid = (uint64_t)vap->va_uid; 581 582 if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) 583 lr->lr_gid = fuidp->z_fuid_group; 584 else 585 lr->lr_gid = (uint64_t)vap->va_gid; 586 587 lr->lr_size = (uint64_t)vap->va_size; 588 ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); 589 ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); 590 start = (lr_setattr_t *)(lr + 1); 591 if (vap->va_mask & AT_XVATTR) { 592 zfs_log_xvattr((lr_attr_t *)start, xvap); 593 start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); 594 } 595 596 /* 597 * Now stick on domain information if any on end 598 */ 599 600 if (fuidp) 601 (void) zfs_log_fuid_domains(fuidp, start); 602 603 itx->itx_sync = (zp->z_sync_cnt != 0); 604 zil_itx_assign(zilog, itx, tx); 605 } 606 607 /* 608 * Handles TX_ACL transactions. 609 */ 610 void 611 zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, 612 vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) 613 { 614 itx_t *itx; 615 lr_acl_v0_t *lrv0; 616 lr_acl_t *lr; 617 int txtype; 618 int lrsize; 619 size_t txsize; 620 size_t aclbytes = vsecp->vsa_aclentsz; 621 622 if (zil_replaying(zilog, tx) || zp->z_unlinked) 623 return; 624 625 txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? 626 TX_ACL_V0 : TX_ACL; 627 628 if (txtype == TX_ACL) 629 lrsize = sizeof (*lr); 630 else 631 lrsize = sizeof (*lrv0); 632 633 txsize = lrsize + 634 ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + 635 (fuidp ? fuidp->z_domain_str_sz : 0) + 636 sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); 637 638 itx = zil_itx_create(txtype, txsize); 639 640 lr = (lr_acl_t *)&itx->itx_lr; 641 lr->lr_foid = zp->z_id; 642 if (txtype == TX_ACL) { 643 lr->lr_acl_bytes = aclbytes; 644 lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; 645 lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; 646 if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) 647 lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; 648 else 649 lr->lr_acl_flags = 0; 650 } 651 lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; 652 653 if (txtype == TX_ACL_V0) { 654 lrv0 = (lr_acl_v0_t *)lr; 655 bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); 656 } else { 657 void *start = (ace_t *)(lr + 1); 658 659 bcopy(vsecp->vsa_aclentp, start, aclbytes); 660 661 start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); 662 663 if (fuidp) { 664 start = zfs_log_fuid_ids(fuidp, start); 665 (void) zfs_log_fuid_domains(fuidp, start); 666 } 667 } 668 669 itx->itx_sync = (zp->z_sync_cnt != 0); 670 zil_itx_assign(zilog, itx, tx); 671 } 672
Indexes created Sat Jun 20 00:25:23 UTC 2026