Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/contrib/openzfs/cmd/zfs/zfs_main.c
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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 https://opensource.org/licenses/CDDL-1.0. 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 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2020 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2013 Steven Hartland. All rights reserved. 28 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 29 * Copyright 2016 Nexenta Systems, Inc. 30 * Copyright (c) 2019 Datto Inc. 31 * Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com> 32 * Copyright 2019 Joyent, Inc. 33 * Copyright (c) 2019, 2020 by Christian Schwarz. All rights reserved. 34 */ 35 36 #include <assert.h> 37 #include <ctype.h> 38 #include <sys/debug.h> 39 #include <errno.h> 40 #include <getopt.h> 41 #include <libgen.h> 42 #include <libintl.h> 43 #include <libuutil.h> 44 #include <libnvpair.h> 45 #include <locale.h> 46 #include <stddef.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <unistd.h> 51 #include <fcntl.h> 52 #include <zone.h> 53 #include <grp.h> 54 #include <pwd.h> 55 #include <umem.h> 56 #include <pthread.h> 57 #include <signal.h> 58 #include <sys/list.h> 59 #include <sys/mkdev.h> 60 #include <sys/mntent.h> 61 #include <sys/mnttab.h> 62 #include <sys/mount.h> 63 #include <sys/stat.h> 64 #include <sys/fs/zfs.h> 65 #include <sys/systeminfo.h> 66 #include <sys/types.h> 67 #include <time.h> 68 #include <sys/zfs_project.h> 69 70 #include <libzfs.h> 71 #include <libzfs_core.h> 72 #include <zfs_prop.h> 73 #include <zfs_deleg.h> 74 #include <libzutil.h> 75 #ifdef HAVE_IDMAP 76 #include <aclutils.h> 77 #include <directory.h> 78 #endif /* HAVE_IDMAP */ 79 80 #include "zfs_iter.h" 81 #include "zfs_util.h" 82 #include "zfs_comutil.h" 83 #include "zfs_projectutil.h" 84 85 libzfs_handle_t *g_zfs; 86 87 static char history_str[HIS_MAX_RECORD_LEN]; 88 static boolean_t log_history = B_TRUE; 89 90 static int zfs_do_clone(int argc, char **argv); 91 static int zfs_do_create(int argc, char **argv); 92 static int zfs_do_destroy(int argc, char **argv); 93 static int zfs_do_get(int argc, char **argv); 94 static int zfs_do_inherit(int argc, char **argv); 95 static int zfs_do_list(int argc, char **argv); 96 static int zfs_do_mount(int argc, char **argv); 97 static int zfs_do_rename(int argc, char **argv); 98 static int zfs_do_rollback(int argc, char **argv); 99 static int zfs_do_set(int argc, char **argv); 100 static int zfs_do_upgrade(int argc, char **argv); 101 static int zfs_do_snapshot(int argc, char **argv); 102 static int zfs_do_unmount(int argc, char **argv); 103 static int zfs_do_share(int argc, char **argv); 104 static int zfs_do_unshare(int argc, char **argv); 105 static int zfs_do_send(int argc, char **argv); 106 static int zfs_do_receive(int argc, char **argv); 107 static int zfs_do_promote(int argc, char **argv); 108 static int zfs_do_userspace(int argc, char **argv); 109 static int zfs_do_allow(int argc, char **argv); 110 static int zfs_do_unallow(int argc, char **argv); 111 static int zfs_do_hold(int argc, char **argv); 112 static int zfs_do_holds(int argc, char **argv); 113 static int zfs_do_release(int argc, char **argv); 114 static int zfs_do_diff(int argc, char **argv); 115 static int zfs_do_bookmark(int argc, char **argv); 116 static int zfs_do_channel_program(int argc, char **argv); 117 static int zfs_do_load_key(int argc, char **argv); 118 static int zfs_do_unload_key(int argc, char **argv); 119 static int zfs_do_change_key(int argc, char **argv); 120 static int zfs_do_project(int argc, char **argv); 121 static int zfs_do_version(int argc, char **argv); 122 static int zfs_do_redact(int argc, char **argv); 123 static int zfs_do_wait(int argc, char **argv); 124 125 #ifdef __FreeBSD__ 126 static int zfs_do_jail(int argc, char **argv); 127 static int zfs_do_unjail(int argc, char **argv); 128 #endif 129 130 #ifdef __linux__ 131 static int zfs_do_zone(int argc, char **argv); 132 static int zfs_do_unzone(int argc, char **argv); 133 #endif 134 135 /* 136 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 137 */ 138 139 #ifdef DEBUG 140 const char * 141 _umem_debug_init(void) 142 { 143 return ("default,verbose"); /* $UMEM_DEBUG setting */ 144 } 145 146 const char * 147 _umem_logging_init(void) 148 { 149 return ("fail,contents"); /* $UMEM_LOGGING setting */ 150 } 151 #endif 152 153 typedef enum { 154 HELP_CLONE, 155 HELP_CREATE, 156 HELP_DESTROY, 157 HELP_GET, 158 HELP_INHERIT, 159 HELP_UPGRADE, 160 HELP_LIST, 161 HELP_MOUNT, 162 HELP_PROMOTE, 163 HELP_RECEIVE, 164 HELP_RENAME, 165 HELP_ROLLBACK, 166 HELP_SEND, 167 HELP_SET, 168 HELP_SHARE, 169 HELP_SNAPSHOT, 170 HELP_UNMOUNT, 171 HELP_UNSHARE, 172 HELP_ALLOW, 173 HELP_UNALLOW, 174 HELP_USERSPACE, 175 HELP_GROUPSPACE, 176 HELP_PROJECTSPACE, 177 HELP_PROJECT, 178 HELP_HOLD, 179 HELP_HOLDS, 180 HELP_RELEASE, 181 HELP_DIFF, 182 HELP_BOOKMARK, 183 HELP_CHANNEL_PROGRAM, 184 HELP_LOAD_KEY, 185 HELP_UNLOAD_KEY, 186 HELP_CHANGE_KEY, 187 HELP_VERSION, 188 HELP_REDACT, 189 HELP_JAIL, 190 HELP_UNJAIL, 191 HELP_WAIT, 192 HELP_ZONE, 193 HELP_UNZONE, 194 } zfs_help_t; 195 196 typedef struct zfs_command { 197 const char *name; 198 int (*func)(int argc, char **argv); 199 zfs_help_t usage; 200 } zfs_command_t; 201 202 /* 203 * Master command table. Each ZFS command has a name, associated function, and 204 * usage message. The usage messages need to be internationalized, so we have 205 * to have a function to return the usage message based on a command index. 206 * 207 * These commands are organized according to how they are displayed in the usage 208 * message. An empty command (one with a NULL name) indicates an empty line in 209 * the generic usage message. 210 */ 211 static zfs_command_t command_table[] = { 212 { "version", zfs_do_version, HELP_VERSION }, 213 { NULL }, 214 { "create", zfs_do_create, HELP_CREATE }, 215 { "destroy", zfs_do_destroy, HELP_DESTROY }, 216 { NULL }, 217 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 218 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 219 { "clone", zfs_do_clone, HELP_CLONE }, 220 { "promote", zfs_do_promote, HELP_PROMOTE }, 221 { "rename", zfs_do_rename, HELP_RENAME }, 222 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 223 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 224 { NULL }, 225 { "list", zfs_do_list, HELP_LIST }, 226 { NULL }, 227 { "set", zfs_do_set, HELP_SET }, 228 { "get", zfs_do_get, HELP_GET }, 229 { "inherit", zfs_do_inherit, HELP_INHERIT }, 230 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 231 { NULL }, 232 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 233 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 234 { "projectspace", zfs_do_userspace, HELP_PROJECTSPACE }, 235 { NULL }, 236 { "project", zfs_do_project, HELP_PROJECT }, 237 { NULL }, 238 { "mount", zfs_do_mount, HELP_MOUNT }, 239 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 240 { "share", zfs_do_share, HELP_SHARE }, 241 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 242 { NULL }, 243 { "send", zfs_do_send, HELP_SEND }, 244 { "receive", zfs_do_receive, HELP_RECEIVE }, 245 { NULL }, 246 { "allow", zfs_do_allow, HELP_ALLOW }, 247 { NULL }, 248 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 249 { NULL }, 250 { "hold", zfs_do_hold, HELP_HOLD }, 251 { "holds", zfs_do_holds, HELP_HOLDS }, 252 { "release", zfs_do_release, HELP_RELEASE }, 253 { "diff", zfs_do_diff, HELP_DIFF }, 254 { "load-key", zfs_do_load_key, HELP_LOAD_KEY }, 255 { "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY }, 256 { "change-key", zfs_do_change_key, HELP_CHANGE_KEY }, 257 { "redact", zfs_do_redact, HELP_REDACT }, 258 { "wait", zfs_do_wait, HELP_WAIT }, 259 260 #ifdef __FreeBSD__ 261 { "jail", zfs_do_jail, HELP_JAIL }, 262 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 263 #endif 264 265 #ifdef __linux__ 266 { "zone", zfs_do_zone, HELP_ZONE }, 267 { "unzone", zfs_do_unzone, HELP_UNZONE }, 268 #endif 269 }; 270 271 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 272 273 zfs_command_t *current_command; 274 275 static const char * 276 get_usage(zfs_help_t idx) 277 { 278 switch (idx) { 279 case HELP_CLONE: 280 return (gettext("\tclone [-p] [-o property=value] ... " 281 "<snapshot> <filesystem|volume>\n")); 282 case HELP_CREATE: 283 return (gettext("\tcreate [-Pnpuv] [-o property=value] ... " 284 "<filesystem>\n" 285 "\tcreate [-Pnpsv] [-b blocksize] [-o property=value] ... " 286 "-V <size> <volume>\n")); 287 case HELP_DESTROY: 288 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 289 "\tdestroy [-dnpRrv] " 290 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 291 "\tdestroy <filesystem|volume>#<bookmark>\n")); 292 case HELP_GET: 293 return (gettext("\tget [-rHp] [-d max] " 294 "[-o \"all\" | field[,...]]\n" 295 "\t [-t type[,...]] [-s source[,...]]\n" 296 "\t <\"all\" | property[,...]> " 297 "[filesystem|volume|snapshot|bookmark] ...\n")); 298 case HELP_INHERIT: 299 return (gettext("\tinherit [-rS] <property> " 300 "<filesystem|volume|snapshot> ...\n")); 301 case HELP_UPGRADE: 302 return (gettext("\tupgrade [-v]\n" 303 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 304 case HELP_LIST: 305 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 306 "[-s property]...\n\t [-S property]... [-t type[,...]] " 307 "[filesystem|volume|snapshot] ...\n")); 308 case HELP_MOUNT: 309 return (gettext("\tmount\n" 310 "\tmount [-flvO] [-o opts] <-a | filesystem>\n")); 311 case HELP_PROMOTE: 312 return (gettext("\tpromote <clone-filesystem>\n")); 313 case HELP_RECEIVE: 314 return (gettext("\treceive [-vMnsFhu] " 315 "[-o <property>=<value>] ... [-x <property>] ...\n" 316 "\t <filesystem|volume|snapshot>\n" 317 "\treceive [-vMnsFhu] [-o <property>=<value>] ... " 318 "[-x <property>] ... \n" 319 "\t [-d | -e] <filesystem>\n" 320 "\treceive -A <filesystem|volume>\n")); 321 case HELP_RENAME: 322 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 323 "<filesystem|volume|snapshot>\n" 324 "\trename -p [-f] <filesystem|volume> <filesystem|volume>\n" 325 "\trename -u [-f] <filesystem> <filesystem>\n" 326 "\trename -r <snapshot> <snapshot>\n")); 327 case HELP_ROLLBACK: 328 return (gettext("\trollback [-rRf] <snapshot>\n")); 329 case HELP_SEND: 330 return (gettext("\tsend [-DLPbcehnpsVvw] " 331 "[-i|-I snapshot]\n" 332 "\t [-R [-X dataset[,dataset]...]] <snapshot>\n" 333 "\tsend [-DnVvPLecw] [-i snapshot|bookmark] " 334 "<filesystem|volume|snapshot>\n" 335 "\tsend [-DnPpVvLec] [-i bookmark|snapshot] " 336 "--redact <bookmark> <snapshot>\n" 337 "\tsend [-nVvPe] -t <receive_resume_token>\n" 338 "\tsend [-PnVv] --saved filesystem\n")); 339 case HELP_SET: 340 return (gettext("\tset <property=value> ... " 341 "<filesystem|volume|snapshot> ...\n")); 342 case HELP_SHARE: 343 return (gettext("\tshare [-l] <-a [nfs|smb] | filesystem>\n")); 344 case HELP_SNAPSHOT: 345 return (gettext("\tsnapshot [-r] [-o property=value] ... " 346 "<filesystem|volume>@<snap> ...\n")); 347 case HELP_UNMOUNT: 348 return (gettext("\tunmount [-fu] " 349 "<-a | filesystem|mountpoint>\n")); 350 case HELP_UNSHARE: 351 return (gettext("\tunshare " 352 "<-a [nfs|smb] | filesystem|mountpoint>\n")); 353 case HELP_ALLOW: 354 return (gettext("\tallow <filesystem|volume>\n" 355 "\tallow [-ldug] " 356 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 357 "\t <filesystem|volume>\n" 358 "\tallow [-ld] -e <perm|@setname>[,...] " 359 "<filesystem|volume>\n" 360 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 361 "\tallow -s @setname <perm|@setname>[,...] " 362 "<filesystem|volume>\n")); 363 case HELP_UNALLOW: 364 return (gettext("\tunallow [-rldug] " 365 "<\"everyone\"|user|group>[,...]\n" 366 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 367 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 368 "<filesystem|volume>\n" 369 "\tunallow [-r] -c [<perm|@setname>[,...]] " 370 "<filesystem|volume>\n" 371 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 372 "<filesystem|volume>\n")); 373 case HELP_USERSPACE: 374 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 375 "[-s field] ...\n" 376 "\t [-S field] ... [-t type[,...]] " 377 "<filesystem|snapshot|path>\n")); 378 case HELP_GROUPSPACE: 379 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 380 "[-s field] ...\n" 381 "\t [-S field] ... [-t type[,...]] " 382 "<filesystem|snapshot|path>\n")); 383 case HELP_PROJECTSPACE: 384 return (gettext("\tprojectspace [-Hp] [-o field[,...]] " 385 "[-s field] ... \n" 386 "\t [-S field] ... <filesystem|snapshot|path>\n")); 387 case HELP_PROJECT: 388 return (gettext("\tproject [-d|-r] <directory|file ...>\n" 389 "\tproject -c [-0] [-d|-r] [-p id] <directory|file ...>\n" 390 "\tproject -C [-k] [-r] <directory ...>\n" 391 "\tproject [-p id] [-r] [-s] <directory ...>\n")); 392 case HELP_HOLD: 393 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 394 case HELP_HOLDS: 395 return (gettext("\tholds [-rHp] <snapshot> ...\n")); 396 case HELP_RELEASE: 397 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 398 case HELP_DIFF: 399 return (gettext("\tdiff [-FHth] <snapshot> " 400 "[snapshot|filesystem]\n")); 401 case HELP_BOOKMARK: 402 return (gettext("\tbookmark <snapshot|bookmark> " 403 "<newbookmark>\n")); 404 case HELP_CHANNEL_PROGRAM: 405 return (gettext("\tprogram [-jn] [-t <instruction limit>] " 406 "[-m <memory limit (b)>]\n" 407 "\t <pool> <program file> [lua args...]\n")); 408 case HELP_LOAD_KEY: 409 return (gettext("\tload-key [-rn] [-L <keylocation>] " 410 "<-a | filesystem|volume>\n")); 411 case HELP_UNLOAD_KEY: 412 return (gettext("\tunload-key [-r] " 413 "<-a | filesystem|volume>\n")); 414 case HELP_CHANGE_KEY: 415 return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n" 416 "\t [-o keylocation=<value>] [-o pbkdf2iters=<value>]\n" 417 "\t <filesystem|volume>\n" 418 "\tchange-key -i [-l] <filesystem|volume>\n")); 419 case HELP_VERSION: 420 return (gettext("\tversion\n")); 421 case HELP_REDACT: 422 return (gettext("\tredact <snapshot> <bookmark> " 423 "<redaction_snapshot> ...\n")); 424 case HELP_JAIL: 425 return (gettext("\tjail <jailid|jailname> <filesystem>\n")); 426 case HELP_UNJAIL: 427 return (gettext("\tunjail <jailid|jailname> <filesystem>\n")); 428 case HELP_WAIT: 429 return (gettext("\twait [-t <activity>] <filesystem>\n")); 430 case HELP_ZONE: 431 return (gettext("\tzone <nsfile> <filesystem>\n")); 432 case HELP_UNZONE: 433 return (gettext("\tunzone <nsfile> <filesystem>\n")); 434 default: 435 __builtin_unreachable(); 436 } 437 } 438 439 void 440 nomem(void) 441 { 442 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 443 exit(1); 444 } 445 446 /* 447 * Utility function to guarantee malloc() success. 448 */ 449 450 void * 451 safe_malloc(size_t size) 452 { 453 void *data; 454 455 if ((data = calloc(1, size)) == NULL) 456 nomem(); 457 458 return (data); 459 } 460 461 static void * 462 safe_realloc(void *data, size_t size) 463 { 464 void *newp; 465 if ((newp = realloc(data, size)) == NULL) { 466 free(data); 467 nomem(); 468 } 469 470 return (newp); 471 } 472 473 static char * 474 safe_strdup(const char *str) 475 { 476 char *dupstr = strdup(str); 477 478 if (dupstr == NULL) 479 nomem(); 480 481 return (dupstr); 482 } 483 484 /* 485 * Callback routine that will print out information for each of 486 * the properties. 487 */ 488 static int 489 usage_prop_cb(int prop, void *cb) 490 { 491 FILE *fp = cb; 492 493 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 494 495 if (zfs_prop_readonly(prop)) 496 (void) fprintf(fp, " NO "); 497 else 498 (void) fprintf(fp, "YES "); 499 500 if (zfs_prop_inheritable(prop)) 501 (void) fprintf(fp, " YES "); 502 else 503 (void) fprintf(fp, " NO "); 504 505 (void) fprintf(fp, "%s\n", zfs_prop_values(prop) ?: "-"); 506 507 return (ZPROP_CONT); 508 } 509 510 /* 511 * Display usage message. If we're inside a command, display only the usage for 512 * that command. Otherwise, iterate over the entire command table and display 513 * a complete usage message. 514 */ 515 static __attribute__((noreturn)) void 516 usage(boolean_t requested) 517 { 518 int i; 519 boolean_t show_properties = B_FALSE; 520 FILE *fp = requested ? stdout : stderr; 521 522 if (current_command == NULL) { 523 524 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 525 (void) fprintf(fp, 526 gettext("where 'command' is one of the following:\n\n")); 527 528 for (i = 0; i < NCOMMAND; i++) { 529 if (command_table[i].name == NULL) 530 (void) fprintf(fp, "\n"); 531 else 532 (void) fprintf(fp, "%s", 533 get_usage(command_table[i].usage)); 534 } 535 536 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 537 "pool/[dataset/]*dataset[@name]\n")); 538 } else { 539 (void) fprintf(fp, gettext("usage:\n")); 540 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 541 } 542 543 if (current_command != NULL && 544 (strcmp(current_command->name, "set") == 0 || 545 strcmp(current_command->name, "get") == 0 || 546 strcmp(current_command->name, "inherit") == 0 || 547 strcmp(current_command->name, "list") == 0)) 548 show_properties = B_TRUE; 549 550 if (show_properties) { 551 (void) fprintf(fp, "%s", 552 gettext("\nThe following properties are supported:\n")); 553 554 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 555 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 556 557 /* Iterate over all properties */ 558 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 559 ZFS_TYPE_DATASET); 560 561 (void) fprintf(fp, "\t%-15s ", "userused@..."); 562 (void) fprintf(fp, " NO NO <size>\n"); 563 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 564 (void) fprintf(fp, " NO NO <size>\n"); 565 (void) fprintf(fp, "\t%-15s ", "projectused@..."); 566 (void) fprintf(fp, " NO NO <size>\n"); 567 (void) fprintf(fp, "\t%-15s ", "userobjused@..."); 568 (void) fprintf(fp, " NO NO <size>\n"); 569 (void) fprintf(fp, "\t%-15s ", "groupobjused@..."); 570 (void) fprintf(fp, " NO NO <size>\n"); 571 (void) fprintf(fp, "\t%-15s ", "projectobjused@..."); 572 (void) fprintf(fp, " NO NO <size>\n"); 573 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 574 (void) fprintf(fp, "YES NO <size> | none\n"); 575 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 576 (void) fprintf(fp, "YES NO <size> | none\n"); 577 (void) fprintf(fp, "\t%-15s ", "projectquota@..."); 578 (void) fprintf(fp, "YES NO <size> | none\n"); 579 (void) fprintf(fp, "\t%-15s ", "userobjquota@..."); 580 (void) fprintf(fp, "YES NO <size> | none\n"); 581 (void) fprintf(fp, "\t%-15s ", "groupobjquota@..."); 582 (void) fprintf(fp, "YES NO <size> | none\n"); 583 (void) fprintf(fp, "\t%-15s ", "projectobjquota@..."); 584 (void) fprintf(fp, "YES NO <size> | none\n"); 585 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 586 (void) fprintf(fp, " NO NO <size>\n"); 587 (void) fprintf(fp, "\t%-15s ", "written#<bookmark>"); 588 (void) fprintf(fp, " NO NO <size>\n"); 589 590 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 591 "with standard units such as K, M, G, etc.\n")); 592 (void) fprintf(fp, "%s", gettext("\nUser-defined properties " 593 "can be specified by using a name containing a colon " 594 "(:).\n")); 595 (void) fprintf(fp, gettext("\nThe {user|group|project}" 596 "[obj]{used|quota}@ properties must be appended with\n" 597 "a user|group|project specifier of one of these forms:\n" 598 " POSIX name (eg: \"matt\")\n" 599 " POSIX id (eg: \"126829\")\n" 600 " SMB name@domain (eg: \"matt@sun\")\n" 601 " SMB SID (eg: \"S-1-234-567-89\")\n")); 602 } else { 603 (void) fprintf(fp, 604 gettext("\nFor the property list, run: %s\n"), 605 "zfs set|get"); 606 (void) fprintf(fp, 607 gettext("\nFor the delegated permission list, run: %s\n"), 608 "zfs allow|unallow"); 609 } 610 611 /* 612 * See comments at end of main(). 613 */ 614 if (getenv("ZFS_ABORT") != NULL) { 615 (void) printf("dumping core by request\n"); 616 abort(); 617 } 618 619 exit(requested ? 0 : 2); 620 } 621 622 /* 623 * Take a property=value argument string and add it to the given nvlist. 624 * Modifies the argument inplace. 625 */ 626 static boolean_t 627 parseprop(nvlist_t *props, char *propname) 628 { 629 char *propval; 630 631 if ((propval = strchr(propname, '=')) == NULL) { 632 (void) fprintf(stderr, gettext("missing " 633 "'=' for property=value argument\n")); 634 return (B_FALSE); 635 } 636 *propval = '\0'; 637 propval++; 638 if (nvlist_exists(props, propname)) { 639 (void) fprintf(stderr, gettext("property '%s' " 640 "specified multiple times\n"), propname); 641 return (B_FALSE); 642 } 643 if (nvlist_add_string(props, propname, propval) != 0) 644 nomem(); 645 return (B_TRUE); 646 } 647 648 /* 649 * Take a property name argument and add it to the given nvlist. 650 * Modifies the argument inplace. 651 */ 652 static boolean_t 653 parsepropname(nvlist_t *props, char *propname) 654 { 655 if (strchr(propname, '=') != NULL) { 656 (void) fprintf(stderr, gettext("invalid character " 657 "'=' in property argument\n")); 658 return (B_FALSE); 659 } 660 if (nvlist_exists(props, propname)) { 661 (void) fprintf(stderr, gettext("property '%s' " 662 "specified multiple times\n"), propname); 663 return (B_FALSE); 664 } 665 if (nvlist_add_boolean(props, propname) != 0) 666 nomem(); 667 return (B_TRUE); 668 } 669 670 static int 671 parse_depth(char *opt, int *flags) 672 { 673 char *tmp; 674 int depth; 675 676 depth = (int)strtol(opt, &tmp, 0); 677 if (*tmp) { 678 (void) fprintf(stderr, 679 gettext("%s is not an integer\n"), optarg); 680 usage(B_FALSE); 681 } 682 if (depth < 0) { 683 (void) fprintf(stderr, 684 gettext("Depth can not be negative.\n")); 685 usage(B_FALSE); 686 } 687 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 688 return (depth); 689 } 690 691 #define PROGRESS_DELAY 2 /* seconds */ 692 693 static const char *pt_reverse = 694 "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"; 695 static time_t pt_begin; 696 static char *pt_header = NULL; 697 static boolean_t pt_shown; 698 699 static void 700 start_progress_timer(void) 701 { 702 pt_begin = time(NULL) + PROGRESS_DELAY; 703 pt_shown = B_FALSE; 704 } 705 706 static void 707 set_progress_header(const char *header) 708 { 709 assert(pt_header == NULL); 710 pt_header = safe_strdup(header); 711 if (pt_shown) { 712 (void) printf("%s: ", header); 713 (void) fflush(stdout); 714 } 715 } 716 717 static void 718 update_progress(const char *update) 719 { 720 if (!pt_shown && time(NULL) > pt_begin) { 721 int len = strlen(update); 722 723 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 724 pt_reverse); 725 (void) fflush(stdout); 726 pt_shown = B_TRUE; 727 } else if (pt_shown) { 728 int len = strlen(update); 729 730 (void) printf("%s%*.*s", update, len, len, pt_reverse); 731 (void) fflush(stdout); 732 } 733 } 734 735 static void 736 finish_progress(const char *done) 737 { 738 if (pt_shown) { 739 (void) puts(done); 740 (void) fflush(stdout); 741 } 742 free(pt_header); 743 pt_header = NULL; 744 } 745 746 static int 747 zfs_mount_and_share(libzfs_handle_t *hdl, const char *dataset, zfs_type_t type) 748 { 749 zfs_handle_t *zhp = NULL; 750 int ret = 0; 751 752 zhp = zfs_open(hdl, dataset, type); 753 if (zhp == NULL) 754 return (1); 755 756 /* 757 * Volumes may neither be mounted or shared. Potentially in the 758 * future filesystems detected on these volumes could be mounted. 759 */ 760 if (zfs_get_type(zhp) == ZFS_TYPE_VOLUME) { 761 zfs_close(zhp); 762 return (0); 763 } 764 765 /* 766 * Mount and/or share the new filesystem as appropriate. We provide a 767 * verbose error message to let the user know that their filesystem was 768 * in fact created, even if we failed to mount or share it. 769 * 770 * If the user doesn't want the dataset automatically mounted, then 771 * skip the mount/share step 772 */ 773 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type, B_FALSE) && 774 zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON) { 775 if (zfs_mount_delegation_check()) { 776 (void) fprintf(stderr, gettext("filesystem " 777 "successfully created, but it may only be " 778 "mounted by root\n")); 779 ret = 1; 780 } else if (zfs_mount(zhp, NULL, 0) != 0) { 781 (void) fprintf(stderr, gettext("filesystem " 782 "successfully created, but not mounted\n")); 783 ret = 1; 784 } else if (zfs_share(zhp, NULL) != 0) { 785 (void) fprintf(stderr, gettext("filesystem " 786 "successfully created, but not shared\n")); 787 ret = 1; 788 } 789 zfs_commit_shares(NULL); 790 } 791 792 zfs_close(zhp); 793 794 return (ret); 795 } 796 797 /* 798 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 799 * 800 * Given an existing dataset, create a writable copy whose initial contents 801 * are the same as the source. The newly created dataset maintains a 802 * dependency on the original; the original cannot be destroyed so long as 803 * the clone exists. 804 * 805 * The '-p' flag creates all the non-existing ancestors of the target first. 806 */ 807 static int 808 zfs_do_clone(int argc, char **argv) 809 { 810 zfs_handle_t *zhp = NULL; 811 boolean_t parents = B_FALSE; 812 nvlist_t *props; 813 int ret = 0; 814 int c; 815 816 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 817 nomem(); 818 819 /* check options */ 820 while ((c = getopt(argc, argv, "o:p")) != -1) { 821 switch (c) { 822 case 'o': 823 if (!parseprop(props, optarg)) { 824 nvlist_free(props); 825 return (1); 826 } 827 break; 828 case 'p': 829 parents = B_TRUE; 830 break; 831 case '?': 832 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 833 optopt); 834 goto usage; 835 } 836 } 837 838 argc -= optind; 839 argv += optind; 840 841 /* check number of arguments */ 842 if (argc < 1) { 843 (void) fprintf(stderr, gettext("missing source dataset " 844 "argument\n")); 845 goto usage; 846 } 847 if (argc < 2) { 848 (void) fprintf(stderr, gettext("missing target dataset " 849 "argument\n")); 850 goto usage; 851 } 852 if (argc > 2) { 853 (void) fprintf(stderr, gettext("too many arguments\n")); 854 goto usage; 855 } 856 857 /* open the source dataset */ 858 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) { 859 nvlist_free(props); 860 return (1); 861 } 862 863 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 864 ZFS_TYPE_VOLUME)) { 865 /* 866 * Now create the ancestors of the target dataset. If the 867 * target already exists and '-p' option was used we should not 868 * complain. 869 */ 870 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 871 ZFS_TYPE_VOLUME)) { 872 zfs_close(zhp); 873 nvlist_free(props); 874 return (0); 875 } 876 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) { 877 zfs_close(zhp); 878 nvlist_free(props); 879 return (1); 880 } 881 } 882 883 /* pass to libzfs */ 884 ret = zfs_clone(zhp, argv[1], props); 885 886 /* create the mountpoint if necessary */ 887 if (ret == 0) { 888 if (log_history) { 889 (void) zpool_log_history(g_zfs, history_str); 890 log_history = B_FALSE; 891 } 892 893 ret = zfs_mount_and_share(g_zfs, argv[1], ZFS_TYPE_DATASET); 894 } 895 896 zfs_close(zhp); 897 nvlist_free(props); 898 899 return (!!ret); 900 901 usage: 902 ASSERT3P(zhp, ==, NULL); 903 nvlist_free(props); 904 usage(B_FALSE); 905 return (-1); 906 } 907 908 /* 909 * Return a default volblocksize for the pool which always uses more than 910 * half of the data sectors. This primarily applies to dRAID which always 911 * writes full stripe widths. 912 */ 913 static uint64_t 914 default_volblocksize(zpool_handle_t *zhp, nvlist_t *props) 915 { 916 uint64_t volblocksize, asize = SPA_MINBLOCKSIZE; 917 nvlist_t *tree, **vdevs; 918 uint_t nvdevs; 919 920 nvlist_t *config = zpool_get_config(zhp, NULL); 921 922 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree) != 0 || 923 nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, 924 &vdevs, &nvdevs) != 0) { 925 return (ZVOL_DEFAULT_BLOCKSIZE); 926 } 927 928 for (int i = 0; i < nvdevs; i++) { 929 nvlist_t *nv = vdevs[i]; 930 uint64_t ashift, ndata, nparity; 931 932 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASHIFT, &ashift) != 0) 933 continue; 934 935 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DRAID_NDATA, 936 &ndata) == 0) { 937 /* dRAID minimum allocation width */ 938 asize = MAX(asize, ndata * (1ULL << ashift)); 939 } else if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY, 940 &nparity) == 0) { 941 /* raidz minimum allocation width */ 942 if (nparity == 1) 943 asize = MAX(asize, 2 * (1ULL << ashift)); 944 else 945 asize = MAX(asize, 4 * (1ULL << ashift)); 946 } else { 947 /* mirror or (non-redundant) leaf vdev */ 948 asize = MAX(asize, 1ULL << ashift); 949 } 950 } 951 952 /* 953 * Calculate the target volblocksize such that more than half 954 * of the asize is used. The following table is for 4k sectors. 955 * 956 * n asize blksz used | n asize blksz used 957 * -------------------------+--------------------------------- 958 * 1 4,096 8,192 100% | 9 36,864 32,768 88% 959 * 2 8,192 8,192 100% | 10 40,960 32,768 80% 960 * 3 12,288 8,192 66% | 11 45,056 32,768 72% 961 * 4 16,384 16,384 100% | 12 49,152 32,768 66% 962 * 5 20,480 16,384 80% | 13 53,248 32,768 61% 963 * 6 24,576 16,384 66% | 14 57,344 32,768 57% 964 * 7 28,672 16,384 57% | 15 61,440 32,768 53% 965 * 8 32,768 32,768 100% | 16 65,536 65,636 100% 966 * 967 * This is primarily a concern for dRAID which always allocates 968 * a full stripe width. For dRAID the default stripe width is 969 * n=8 in which case the volblocksize is set to 32k. Ignoring 970 * compression there are no unused sectors. This same reasoning 971 * applies to raidz[2,3] so target 4 sectors to minimize waste. 972 */ 973 uint64_t tgt_volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 974 while (tgt_volblocksize * 2 <= asize) 975 tgt_volblocksize *= 2; 976 977 const char *prop = zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE); 978 if (nvlist_lookup_uint64(props, prop, &volblocksize) == 0) { 979 980 /* Issue a warning when a non-optimal size is requested. */ 981 if (volblocksize < ZVOL_DEFAULT_BLOCKSIZE) { 982 (void) fprintf(stderr, gettext("Warning: " 983 "volblocksize (%llu) is less than the default " 984 "minimum block size (%llu).\nTo reduce wasted " 985 "space a volblocksize of %llu is recommended.\n"), 986 (u_longlong_t)volblocksize, 987 (u_longlong_t)ZVOL_DEFAULT_BLOCKSIZE, 988 (u_longlong_t)tgt_volblocksize); 989 } else if (volblocksize < tgt_volblocksize) { 990 (void) fprintf(stderr, gettext("Warning: " 991 "volblocksize (%llu) is much less than the " 992 "minimum allocation\nunit (%llu), which wastes " 993 "at least %llu%% of space. To reduce wasted " 994 "space,\nuse a larger volblocksize (%llu is " 995 "recommended), fewer dRAID data disks\n" 996 "per group, or smaller sector size (ashift).\n"), 997 (u_longlong_t)volblocksize, (u_longlong_t)asize, 998 (u_longlong_t)((100 * (asize - volblocksize)) / 999 asize), (u_longlong_t)tgt_volblocksize); 1000 } 1001 } else { 1002 volblocksize = tgt_volblocksize; 1003 fnvlist_add_uint64(props, prop, volblocksize); 1004 } 1005 1006 return (volblocksize); 1007 } 1008 1009 /* 1010 * zfs create [-Pnpv] [-o prop=value] ... fs 1011 * zfs create [-Pnpsv] [-b blocksize] [-o prop=value] ... -V vol size 1012 * 1013 * Create a new dataset. This command can be used to create filesystems 1014 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 1015 * For volumes, the user must specify a size to be used. 1016 * 1017 * The '-s' flag applies only to volumes, and indicates that we should not try 1018 * to set the reservation for this volume. By default we set a reservation 1019 * equal to the size for any volume. For pools with SPA_VERSION >= 1020 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 1021 * 1022 * The '-p' flag creates all the non-existing ancestors of the target first. 1023 * 1024 * The '-n' flag is no-op (dry run) mode. This will perform a user-space sanity 1025 * check of arguments and properties, but does not check for permissions, 1026 * available space, etc. 1027 * 1028 * The '-u' flag prevents the newly created file system from being mounted. 1029 * 1030 * The '-v' flag is for verbose output. 1031 * 1032 * The '-P' flag is used for parseable output. It implies '-v'. 1033 */ 1034 static int 1035 zfs_do_create(int argc, char **argv) 1036 { 1037 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 1038 zpool_handle_t *zpool_handle = NULL; 1039 nvlist_t *real_props = NULL; 1040 uint64_t volsize = 0; 1041 int c; 1042 boolean_t noreserve = B_FALSE; 1043 boolean_t bflag = B_FALSE; 1044 boolean_t parents = B_FALSE; 1045 boolean_t dryrun = B_FALSE; 1046 boolean_t nomount = B_FALSE; 1047 boolean_t verbose = B_FALSE; 1048 boolean_t parseable = B_FALSE; 1049 int ret = 1; 1050 nvlist_t *props; 1051 uint64_t intval; 1052 char *strval; 1053 1054 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 1055 nomem(); 1056 1057 /* check options */ 1058 while ((c = getopt(argc, argv, ":PV:b:nso:puv")) != -1) { 1059 switch (c) { 1060 case 'V': 1061 type = ZFS_TYPE_VOLUME; 1062 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 1063 (void) fprintf(stderr, gettext("bad volume " 1064 "size '%s': %s\n"), optarg, 1065 libzfs_error_description(g_zfs)); 1066 goto error; 1067 } 1068 1069 if (nvlist_add_uint64(props, 1070 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 1071 nomem(); 1072 volsize = intval; 1073 break; 1074 case 'P': 1075 verbose = B_TRUE; 1076 parseable = B_TRUE; 1077 break; 1078 case 'p': 1079 parents = B_TRUE; 1080 break; 1081 case 'b': 1082 bflag = B_TRUE; 1083 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 1084 (void) fprintf(stderr, gettext("bad volume " 1085 "block size '%s': %s\n"), optarg, 1086 libzfs_error_description(g_zfs)); 1087 goto error; 1088 } 1089 1090 if (nvlist_add_uint64(props, 1091 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1092 intval) != 0) 1093 nomem(); 1094 break; 1095 case 'n': 1096 dryrun = B_TRUE; 1097 break; 1098 case 'o': 1099 if (!parseprop(props, optarg)) 1100 goto error; 1101 break; 1102 case 's': 1103 noreserve = B_TRUE; 1104 break; 1105 case 'u': 1106 nomount = B_TRUE; 1107 break; 1108 case 'v': 1109 verbose = B_TRUE; 1110 break; 1111 case ':': 1112 (void) fprintf(stderr, gettext("missing size " 1113 "argument\n")); 1114 goto badusage; 1115 case '?': 1116 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1117 optopt); 1118 goto badusage; 1119 } 1120 } 1121 1122 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 1123 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 1124 "used when creating a volume\n")); 1125 goto badusage; 1126 } 1127 if (nomount && type != ZFS_TYPE_FILESYSTEM) { 1128 (void) fprintf(stderr, gettext("'-u' can only be " 1129 "used when creating a filesystem\n")); 1130 goto badusage; 1131 } 1132 1133 argc -= optind; 1134 argv += optind; 1135 1136 /* check number of arguments */ 1137 if (argc == 0) { 1138 (void) fprintf(stderr, gettext("missing %s argument\n"), 1139 zfs_type_to_name(type)); 1140 goto badusage; 1141 } 1142 if (argc > 1) { 1143 (void) fprintf(stderr, gettext("too many arguments\n")); 1144 goto badusage; 1145 } 1146 1147 if (dryrun || type == ZFS_TYPE_VOLUME) { 1148 char msg[ZFS_MAX_DATASET_NAME_LEN * 2]; 1149 char *p; 1150 1151 if ((p = strchr(argv[0], '/')) != NULL) 1152 *p = '\0'; 1153 zpool_handle = zpool_open(g_zfs, argv[0]); 1154 if (p != NULL) 1155 *p = '/'; 1156 if (zpool_handle == NULL) 1157 goto error; 1158 1159 (void) snprintf(msg, sizeof (msg), 1160 dryrun ? gettext("cannot verify '%s'") : 1161 gettext("cannot create '%s'"), argv[0]); 1162 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 1163 props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) { 1164 zpool_close(zpool_handle); 1165 goto error; 1166 } 1167 } 1168 1169 if (type == ZFS_TYPE_VOLUME) { 1170 const char *prop = zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE); 1171 uint64_t volblocksize = default_volblocksize(zpool_handle, 1172 real_props); 1173 1174 if (volblocksize != ZVOL_DEFAULT_BLOCKSIZE && 1175 nvlist_lookup_string(props, prop, &strval) != 0) { 1176 if (asprintf(&strval, "%llu", 1177 (u_longlong_t)volblocksize) == -1) 1178 nomem(); 1179 nvlist_add_string(props, prop, strval); 1180 free(strval); 1181 } 1182 1183 /* 1184 * If volsize is not a multiple of volblocksize, round it 1185 * up to the nearest multiple of the volblocksize. 1186 */ 1187 if (volsize % volblocksize) { 1188 volsize = P2ROUNDUP_TYPED(volsize, volblocksize, 1189 uint64_t); 1190 1191 if (nvlist_add_uint64(props, 1192 zfs_prop_to_name(ZFS_PROP_VOLSIZE), volsize) != 0) { 1193 nvlist_free(props); 1194 nomem(); 1195 } 1196 } 1197 } 1198 1199 if (type == ZFS_TYPE_VOLUME && !noreserve) { 1200 uint64_t spa_version; 1201 zfs_prop_t resv_prop; 1202 1203 spa_version = zpool_get_prop_int(zpool_handle, 1204 ZPOOL_PROP_VERSION, NULL); 1205 if (spa_version >= SPA_VERSION_REFRESERVATION) 1206 resv_prop = ZFS_PROP_REFRESERVATION; 1207 else 1208 resv_prop = ZFS_PROP_RESERVATION; 1209 1210 volsize = zvol_volsize_to_reservation(zpool_handle, volsize, 1211 real_props); 1212 1213 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 1214 &strval) != 0) { 1215 if (nvlist_add_uint64(props, 1216 zfs_prop_to_name(resv_prop), volsize) != 0) { 1217 nvlist_free(props); 1218 nomem(); 1219 } 1220 } 1221 } 1222 if (zpool_handle != NULL) { 1223 zpool_close(zpool_handle); 1224 nvlist_free(real_props); 1225 } 1226 1227 if (parents && zfs_name_valid(argv[0], type)) { 1228 /* 1229 * Now create the ancestors of target dataset. If the target 1230 * already exists and '-p' option was used we should not 1231 * complain. 1232 */ 1233 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 1234 ret = 0; 1235 goto error; 1236 } 1237 if (verbose) { 1238 (void) printf(parseable ? "create_ancestors\t%s\n" : 1239 dryrun ? "would create ancestors of %s\n" : 1240 "create ancestors of %s\n", argv[0]); 1241 } 1242 if (!dryrun) { 1243 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) { 1244 goto error; 1245 } 1246 } 1247 } 1248 1249 if (verbose) { 1250 nvpair_t *nvp = NULL; 1251 (void) printf(parseable ? "create\t%s\n" : 1252 dryrun ? "would create %s\n" : "create %s\n", argv[0]); 1253 while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) { 1254 uint64_t uval; 1255 char *sval; 1256 1257 switch (nvpair_type(nvp)) { 1258 case DATA_TYPE_UINT64: 1259 VERIFY0(nvpair_value_uint64(nvp, &uval)); 1260 (void) printf(parseable ? 1261 "property\t%s\t%llu\n" : "\t%s=%llu\n", 1262 nvpair_name(nvp), (u_longlong_t)uval); 1263 break; 1264 case DATA_TYPE_STRING: 1265 VERIFY0(nvpair_value_string(nvp, &sval)); 1266 (void) printf(parseable ? 1267 "property\t%s\t%s\n" : "\t%s=%s\n", 1268 nvpair_name(nvp), sval); 1269 break; 1270 default: 1271 (void) fprintf(stderr, "property '%s' " 1272 "has illegal type %d\n", 1273 nvpair_name(nvp), nvpair_type(nvp)); 1274 abort(); 1275 } 1276 } 1277 } 1278 if (dryrun) { 1279 ret = 0; 1280 goto error; 1281 } 1282 1283 /* pass to libzfs */ 1284 if (zfs_create(g_zfs, argv[0], type, props) != 0) 1285 goto error; 1286 1287 if (log_history) { 1288 (void) zpool_log_history(g_zfs, history_str); 1289 log_history = B_FALSE; 1290 } 1291 1292 if (nomount) { 1293 ret = 0; 1294 goto error; 1295 } 1296 1297 ret = zfs_mount_and_share(g_zfs, argv[0], ZFS_TYPE_DATASET); 1298 error: 1299 nvlist_free(props); 1300 return (ret); 1301 badusage: 1302 nvlist_free(props); 1303 usage(B_FALSE); 1304 return (2); 1305 } 1306 1307 /* 1308 * zfs destroy [-rRf] <fs, vol> 1309 * zfs destroy [-rRd] <snap> 1310 * 1311 * -r Recursively destroy all children 1312 * -R Recursively destroy all dependents, including clones 1313 * -f Force unmounting of any dependents 1314 * -d If we can't destroy now, mark for deferred destruction 1315 * 1316 * Destroys the given dataset. By default, it will unmount any filesystems, 1317 * and refuse to destroy a dataset that has any dependents. A dependent can 1318 * either be a child, or a clone of a child. 1319 */ 1320 typedef struct destroy_cbdata { 1321 boolean_t cb_first; 1322 boolean_t cb_force; 1323 boolean_t cb_recurse; 1324 boolean_t cb_error; 1325 boolean_t cb_doclones; 1326 zfs_handle_t *cb_target; 1327 boolean_t cb_defer_destroy; 1328 boolean_t cb_verbose; 1329 boolean_t cb_parsable; 1330 boolean_t cb_dryrun; 1331 nvlist_t *cb_nvl; 1332 nvlist_t *cb_batchedsnaps; 1333 1334 /* first snap in contiguous run */ 1335 char *cb_firstsnap; 1336 /* previous snap in contiguous run */ 1337 char *cb_prevsnap; 1338 int64_t cb_snapused; 1339 char *cb_snapspec; 1340 char *cb_bookmark; 1341 uint64_t cb_snap_count; 1342 } destroy_cbdata_t; 1343 1344 /* 1345 * Check for any dependents based on the '-r' or '-R' flags. 1346 */ 1347 static int 1348 destroy_check_dependent(zfs_handle_t *zhp, void *data) 1349 { 1350 destroy_cbdata_t *cbp = data; 1351 const char *tname = zfs_get_name(cbp->cb_target); 1352 const char *name = zfs_get_name(zhp); 1353 1354 if (strncmp(tname, name, strlen(tname)) == 0 && 1355 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 1356 /* 1357 * This is a direct descendant, not a clone somewhere else in 1358 * the hierarchy. 1359 */ 1360 if (cbp->cb_recurse) 1361 goto out; 1362 1363 if (cbp->cb_first) { 1364 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1365 "%s has children\n"), 1366 zfs_get_name(cbp->cb_target), 1367 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1368 (void) fprintf(stderr, gettext("use '-r' to destroy " 1369 "the following datasets:\n")); 1370 cbp->cb_first = B_FALSE; 1371 cbp->cb_error = B_TRUE; 1372 } 1373 1374 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1375 } else { 1376 /* 1377 * This is a clone. We only want to report this if the '-r' 1378 * wasn't specified, or the target is a snapshot. 1379 */ 1380 if (!cbp->cb_recurse && 1381 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1382 goto out; 1383 1384 if (cbp->cb_first) { 1385 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1386 "%s has dependent clones\n"), 1387 zfs_get_name(cbp->cb_target), 1388 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1389 (void) fprintf(stderr, gettext("use '-R' to destroy " 1390 "the following datasets:\n")); 1391 cbp->cb_first = B_FALSE; 1392 cbp->cb_error = B_TRUE; 1393 cbp->cb_dryrun = B_TRUE; 1394 } 1395 1396 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1397 } 1398 1399 out: 1400 zfs_close(zhp); 1401 return (0); 1402 } 1403 1404 static int 1405 destroy_batched(destroy_cbdata_t *cb) 1406 { 1407 int error = zfs_destroy_snaps_nvl(g_zfs, 1408 cb->cb_batchedsnaps, B_FALSE); 1409 fnvlist_free(cb->cb_batchedsnaps); 1410 cb->cb_batchedsnaps = fnvlist_alloc(); 1411 return (error); 1412 } 1413 1414 static int 1415 destroy_callback(zfs_handle_t *zhp, void *data) 1416 { 1417 destroy_cbdata_t *cb = data; 1418 const char *name = zfs_get_name(zhp); 1419 int error; 1420 1421 if (cb->cb_verbose) { 1422 if (cb->cb_parsable) { 1423 (void) printf("destroy\t%s\n", name); 1424 } else if (cb->cb_dryrun) { 1425 (void) printf(gettext("would destroy %s\n"), 1426 name); 1427 } else { 1428 (void) printf(gettext("will destroy %s\n"), 1429 name); 1430 } 1431 } 1432 1433 /* 1434 * Ignore pools (which we've already flagged as an error before getting 1435 * here). 1436 */ 1437 if (strchr(zfs_get_name(zhp), '/') == NULL && 1438 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1439 zfs_close(zhp); 1440 return (0); 1441 } 1442 if (cb->cb_dryrun) { 1443 zfs_close(zhp); 1444 return (0); 1445 } 1446 1447 /* 1448 * We batch up all contiguous snapshots (even of different 1449 * filesystems) and destroy them with one ioctl. We can't 1450 * simply do all snap deletions and then all fs deletions, 1451 * because we must delete a clone before its origin. 1452 */ 1453 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1454 cb->cb_snap_count++; 1455 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1456 if (cb->cb_snap_count % 10 == 0 && cb->cb_defer_destroy) { 1457 error = destroy_batched(cb); 1458 if (error != 0) { 1459 zfs_close(zhp); 1460 return (-1); 1461 } 1462 } 1463 } else { 1464 error = destroy_batched(cb); 1465 if (error != 0 || 1466 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1467 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1468 zfs_close(zhp); 1469 /* 1470 * When performing a recursive destroy we ignore errors 1471 * so that the recursive destroy could continue 1472 * destroying past problem datasets 1473 */ 1474 if (cb->cb_recurse) { 1475 cb->cb_error = B_TRUE; 1476 return (0); 1477 } 1478 return (-1); 1479 } 1480 } 1481 1482 zfs_close(zhp); 1483 return (0); 1484 } 1485 1486 static int 1487 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1488 { 1489 destroy_cbdata_t *cb = arg; 1490 const char *name = zfs_get_name(zhp); 1491 int err = 0; 1492 1493 if (nvlist_exists(cb->cb_nvl, name)) { 1494 if (cb->cb_firstsnap == NULL) 1495 cb->cb_firstsnap = strdup(name); 1496 if (cb->cb_prevsnap != NULL) 1497 free(cb->cb_prevsnap); 1498 /* this snap continues the current range */ 1499 cb->cb_prevsnap = strdup(name); 1500 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1501 nomem(); 1502 if (cb->cb_verbose) { 1503 if (cb->cb_parsable) { 1504 (void) printf("destroy\t%s\n", name); 1505 } else if (cb->cb_dryrun) { 1506 (void) printf(gettext("would destroy %s\n"), 1507 name); 1508 } else { 1509 (void) printf(gettext("will destroy %s\n"), 1510 name); 1511 } 1512 } 1513 } else if (cb->cb_firstsnap != NULL) { 1514 /* end of this range */ 1515 uint64_t used = 0; 1516 err = lzc_snaprange_space(cb->cb_firstsnap, 1517 cb->cb_prevsnap, &used); 1518 cb->cb_snapused += used; 1519 free(cb->cb_firstsnap); 1520 cb->cb_firstsnap = NULL; 1521 free(cb->cb_prevsnap); 1522 cb->cb_prevsnap = NULL; 1523 } 1524 zfs_close(zhp); 1525 return (err); 1526 } 1527 1528 static int 1529 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1530 { 1531 int err; 1532 assert(cb->cb_firstsnap == NULL); 1533 assert(cb->cb_prevsnap == NULL); 1534 err = zfs_iter_snapshots_sorted(fs_zhp, 0, destroy_print_cb, cb, 0, 0); 1535 if (cb->cb_firstsnap != NULL) { 1536 uint64_t used = 0; 1537 if (err == 0) { 1538 err = lzc_snaprange_space(cb->cb_firstsnap, 1539 cb->cb_prevsnap, &used); 1540 } 1541 cb->cb_snapused += used; 1542 free(cb->cb_firstsnap); 1543 cb->cb_firstsnap = NULL; 1544 free(cb->cb_prevsnap); 1545 cb->cb_prevsnap = NULL; 1546 } 1547 return (err); 1548 } 1549 1550 static int 1551 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1552 { 1553 destroy_cbdata_t *cb = arg; 1554 int err = 0; 1555 1556 /* Check for clones. */ 1557 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1558 cb->cb_target = zhp; 1559 cb->cb_first = B_TRUE; 1560 err = zfs_iter_dependents(zhp, 0, B_TRUE, 1561 destroy_check_dependent, cb); 1562 } 1563 1564 if (err == 0) { 1565 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1566 nomem(); 1567 } 1568 zfs_close(zhp); 1569 return (err); 1570 } 1571 1572 static int 1573 gather_snapshots(zfs_handle_t *zhp, void *arg) 1574 { 1575 destroy_cbdata_t *cb = arg; 1576 int err = 0; 1577 1578 err = zfs_iter_snapspec(zhp, 0, cb->cb_snapspec, 1579 snapshot_to_nvl_cb, cb); 1580 if (err == ENOENT) 1581 err = 0; 1582 if (err != 0) 1583 goto out; 1584 1585 if (cb->cb_verbose) { 1586 err = destroy_print_snapshots(zhp, cb); 1587 if (err != 0) 1588 goto out; 1589 } 1590 1591 if (cb->cb_recurse) 1592 err = zfs_iter_filesystems(zhp, 0, gather_snapshots, cb); 1593 1594 out: 1595 zfs_close(zhp); 1596 return (err); 1597 } 1598 1599 static int 1600 destroy_clones(destroy_cbdata_t *cb) 1601 { 1602 nvpair_t *pair; 1603 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1604 pair != NULL; 1605 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1606 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1607 ZFS_TYPE_SNAPSHOT); 1608 if (zhp != NULL) { 1609 boolean_t defer = cb->cb_defer_destroy; 1610 int err; 1611 1612 /* 1613 * We can't defer destroy non-snapshots, so set it to 1614 * false while destroying the clones. 1615 */ 1616 cb->cb_defer_destroy = B_FALSE; 1617 err = zfs_iter_dependents(zhp, 0, B_FALSE, 1618 destroy_callback, cb); 1619 cb->cb_defer_destroy = defer; 1620 zfs_close(zhp); 1621 if (err != 0) 1622 return (err); 1623 } 1624 } 1625 return (0); 1626 } 1627 1628 static int 1629 zfs_do_destroy(int argc, char **argv) 1630 { 1631 destroy_cbdata_t cb = { 0 }; 1632 int rv = 0; 1633 int err = 0; 1634 int c; 1635 zfs_handle_t *zhp = NULL; 1636 char *at, *pound; 1637 zfs_type_t type = ZFS_TYPE_DATASET; 1638 1639 /* check options */ 1640 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1641 switch (c) { 1642 case 'v': 1643 cb.cb_verbose = B_TRUE; 1644 break; 1645 case 'p': 1646 cb.cb_verbose = B_TRUE; 1647 cb.cb_parsable = B_TRUE; 1648 break; 1649 case 'n': 1650 cb.cb_dryrun = B_TRUE; 1651 break; 1652 case 'd': 1653 cb.cb_defer_destroy = B_TRUE; 1654 type = ZFS_TYPE_SNAPSHOT; 1655 break; 1656 case 'f': 1657 cb.cb_force = B_TRUE; 1658 break; 1659 case 'r': 1660 cb.cb_recurse = B_TRUE; 1661 break; 1662 case 'R': 1663 cb.cb_recurse = B_TRUE; 1664 cb.cb_doclones = B_TRUE; 1665 break; 1666 case '?': 1667 default: 1668 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1669 optopt); 1670 usage(B_FALSE); 1671 } 1672 } 1673 1674 argc -= optind; 1675 argv += optind; 1676 1677 /* check number of arguments */ 1678 if (argc == 0) { 1679 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1680 usage(B_FALSE); 1681 } 1682 if (argc > 1) { 1683 (void) fprintf(stderr, gettext("too many arguments\n")); 1684 usage(B_FALSE); 1685 } 1686 1687 at = strchr(argv[0], '@'); 1688 pound = strchr(argv[0], '#'); 1689 if (at != NULL) { 1690 1691 /* Build the list of snaps to destroy in cb_nvl. */ 1692 cb.cb_nvl = fnvlist_alloc(); 1693 1694 *at = '\0'; 1695 zhp = zfs_open(g_zfs, argv[0], 1696 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1697 if (zhp == NULL) { 1698 nvlist_free(cb.cb_nvl); 1699 return (1); 1700 } 1701 1702 cb.cb_snapspec = at + 1; 1703 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1704 cb.cb_error) { 1705 rv = 1; 1706 goto out; 1707 } 1708 1709 if (nvlist_empty(cb.cb_nvl)) { 1710 (void) fprintf(stderr, gettext("could not find any " 1711 "snapshots to destroy; check snapshot names.\n")); 1712 rv = 1; 1713 goto out; 1714 } 1715 1716 if (cb.cb_verbose) { 1717 char buf[16]; 1718 zfs_nicebytes(cb.cb_snapused, buf, sizeof (buf)); 1719 if (cb.cb_parsable) { 1720 (void) printf("reclaim\t%llu\n", 1721 (u_longlong_t)cb.cb_snapused); 1722 } else if (cb.cb_dryrun) { 1723 (void) printf(gettext("would reclaim %s\n"), 1724 buf); 1725 } else { 1726 (void) printf(gettext("will reclaim %s\n"), 1727 buf); 1728 } 1729 } 1730 1731 if (!cb.cb_dryrun) { 1732 if (cb.cb_doclones) { 1733 cb.cb_batchedsnaps = fnvlist_alloc(); 1734 err = destroy_clones(&cb); 1735 if (err == 0) { 1736 err = zfs_destroy_snaps_nvl(g_zfs, 1737 cb.cb_batchedsnaps, B_FALSE); 1738 } 1739 if (err != 0) { 1740 rv = 1; 1741 goto out; 1742 } 1743 } 1744 if (err == 0) { 1745 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1746 cb.cb_defer_destroy); 1747 } 1748 } 1749 1750 if (err != 0) 1751 rv = 1; 1752 } else if (pound != NULL) { 1753 int err; 1754 nvlist_t *nvl; 1755 1756 if (cb.cb_dryrun) { 1757 (void) fprintf(stderr, 1758 "dryrun is not supported with bookmark\n"); 1759 return (-1); 1760 } 1761 1762 if (cb.cb_defer_destroy) { 1763 (void) fprintf(stderr, 1764 "defer destroy is not supported with bookmark\n"); 1765 return (-1); 1766 } 1767 1768 if (cb.cb_recurse) { 1769 (void) fprintf(stderr, 1770 "recursive is not supported with bookmark\n"); 1771 return (-1); 1772 } 1773 1774 /* 1775 * Unfortunately, zfs_bookmark() doesn't honor the 1776 * casesensitivity setting. However, we can't simply 1777 * remove this check, because lzc_destroy_bookmarks() 1778 * ignores non-existent bookmarks, so this is necessary 1779 * to get a proper error message. 1780 */ 1781 if (!zfs_bookmark_exists(argv[0])) { 1782 (void) fprintf(stderr, gettext("bookmark '%s' " 1783 "does not exist.\n"), argv[0]); 1784 return (1); 1785 } 1786 1787 nvl = fnvlist_alloc(); 1788 fnvlist_add_boolean(nvl, argv[0]); 1789 1790 err = lzc_destroy_bookmarks(nvl, NULL); 1791 if (err != 0) { 1792 (void) zfs_standard_error(g_zfs, err, 1793 "cannot destroy bookmark"); 1794 } 1795 1796 nvlist_free(nvl); 1797 1798 return (err); 1799 } else { 1800 /* Open the given dataset */ 1801 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1802 return (1); 1803 1804 cb.cb_target = zhp; 1805 1806 /* 1807 * Perform an explicit check for pools before going any further. 1808 */ 1809 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1810 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1811 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1812 "operation does not apply to pools\n"), 1813 zfs_get_name(zhp)); 1814 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1815 "%s' to destroy all datasets in the pool\n"), 1816 zfs_get_name(zhp)); 1817 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1818 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1819 rv = 1; 1820 goto out; 1821 } 1822 1823 /* 1824 * Check for any dependents and/or clones. 1825 */ 1826 cb.cb_first = B_TRUE; 1827 if (!cb.cb_doclones && 1828 zfs_iter_dependents(zhp, 0, B_TRUE, destroy_check_dependent, 1829 &cb) != 0) { 1830 rv = 1; 1831 goto out; 1832 } 1833 1834 if (cb.cb_error) { 1835 rv = 1; 1836 goto out; 1837 } 1838 cb.cb_batchedsnaps = fnvlist_alloc(); 1839 if (zfs_iter_dependents(zhp, 0, B_FALSE, destroy_callback, 1840 &cb) != 0) { 1841 rv = 1; 1842 goto out; 1843 } 1844 1845 /* 1846 * Do the real thing. The callback will close the 1847 * handle regardless of whether it succeeds or not. 1848 */ 1849 err = destroy_callback(zhp, &cb); 1850 zhp = NULL; 1851 if (err == 0) { 1852 err = zfs_destroy_snaps_nvl(g_zfs, 1853 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1854 } 1855 if (err != 0 || cb.cb_error == B_TRUE) 1856 rv = 1; 1857 } 1858 1859 out: 1860 fnvlist_free(cb.cb_batchedsnaps); 1861 fnvlist_free(cb.cb_nvl); 1862 if (zhp != NULL) 1863 zfs_close(zhp); 1864 return (rv); 1865 } 1866 1867 static boolean_t 1868 is_recvd_column(zprop_get_cbdata_t *cbp) 1869 { 1870 int i; 1871 zfs_get_column_t col; 1872 1873 for (i = 0; i < ZFS_GET_NCOLS && 1874 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1875 if (col == GET_COL_RECVD) 1876 return (B_TRUE); 1877 return (B_FALSE); 1878 } 1879 1880 /* 1881 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1882 * < all | property[,property]... > < fs | snap | vol > ... 1883 * 1884 * -r recurse over any child datasets 1885 * -H scripted mode. Headers are stripped, and fields are separated 1886 * by tabs instead of spaces. 1887 * -o Set of fields to display. One of "name,property,value, 1888 * received,source". Default is "name,property,value,source". 1889 * "all" is an alias for all five. 1890 * -s Set of sources to allow. One of 1891 * "local,default,inherited,received,temporary,none". Default is 1892 * all six. 1893 * -p Display values in parsable (literal) format. 1894 * 1895 * Prints properties for the given datasets. The user can control which 1896 * columns to display as well as which property types to allow. 1897 */ 1898 1899 /* 1900 * Invoked to display the properties for a single dataset. 1901 */ 1902 static int 1903 get_callback(zfs_handle_t *zhp, void *data) 1904 { 1905 char buf[ZFS_MAXPROPLEN]; 1906 char rbuf[ZFS_MAXPROPLEN]; 1907 zprop_source_t sourcetype; 1908 char source[ZFS_MAX_DATASET_NAME_LEN]; 1909 zprop_get_cbdata_t *cbp = data; 1910 nvlist_t *user_props = zfs_get_user_props(zhp); 1911 zprop_list_t *pl = cbp->cb_proplist; 1912 nvlist_t *propval; 1913 const char *strval; 1914 const char *sourceval; 1915 boolean_t received = is_recvd_column(cbp); 1916 1917 for (; pl != NULL; pl = pl->pl_next) { 1918 char *recvdval = NULL; 1919 /* 1920 * Skip the special fake placeholder. This will also skip over 1921 * the name property when 'all' is specified. 1922 */ 1923 if (pl->pl_prop == ZFS_PROP_NAME && 1924 pl == cbp->cb_proplist) 1925 continue; 1926 1927 if (pl->pl_prop != ZPROP_USERPROP) { 1928 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1929 sizeof (buf), &sourcetype, source, 1930 sizeof (source), 1931 cbp->cb_literal) != 0) { 1932 if (pl->pl_all) 1933 continue; 1934 if (!zfs_prop_valid_for_type(pl->pl_prop, 1935 ZFS_TYPE_DATASET, B_FALSE)) { 1936 (void) fprintf(stderr, 1937 gettext("No such property '%s'\n"), 1938 zfs_prop_to_name(pl->pl_prop)); 1939 continue; 1940 } 1941 sourcetype = ZPROP_SRC_NONE; 1942 (void) strlcpy(buf, "-", sizeof (buf)); 1943 } 1944 1945 if (received && (zfs_prop_get_recvd(zhp, 1946 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1947 cbp->cb_literal) == 0)) 1948 recvdval = rbuf; 1949 1950 zprop_print_one_property(zfs_get_name(zhp), cbp, 1951 zfs_prop_to_name(pl->pl_prop), 1952 buf, sourcetype, source, recvdval); 1953 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1954 sourcetype = ZPROP_SRC_LOCAL; 1955 1956 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1957 buf, sizeof (buf), cbp->cb_literal) != 0) { 1958 sourcetype = ZPROP_SRC_NONE; 1959 (void) strlcpy(buf, "-", sizeof (buf)); 1960 } 1961 1962 zprop_print_one_property(zfs_get_name(zhp), cbp, 1963 pl->pl_user_prop, buf, sourcetype, source, NULL); 1964 } else if (zfs_prop_written(pl->pl_user_prop)) { 1965 sourcetype = ZPROP_SRC_LOCAL; 1966 1967 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1968 buf, sizeof (buf), cbp->cb_literal) != 0) { 1969 sourcetype = ZPROP_SRC_NONE; 1970 (void) strlcpy(buf, "-", sizeof (buf)); 1971 } 1972 1973 zprop_print_one_property(zfs_get_name(zhp), cbp, 1974 pl->pl_user_prop, buf, sourcetype, source, NULL); 1975 } else { 1976 if (nvlist_lookup_nvlist(user_props, 1977 pl->pl_user_prop, &propval) != 0) { 1978 if (pl->pl_all) 1979 continue; 1980 sourcetype = ZPROP_SRC_NONE; 1981 strval = "-"; 1982 } else { 1983 strval = fnvlist_lookup_string(propval, 1984 ZPROP_VALUE); 1985 sourceval = fnvlist_lookup_string(propval, 1986 ZPROP_SOURCE); 1987 1988 if (strcmp(sourceval, 1989 zfs_get_name(zhp)) == 0) { 1990 sourcetype = ZPROP_SRC_LOCAL; 1991 } else if (strcmp(sourceval, 1992 ZPROP_SOURCE_VAL_RECVD) == 0) { 1993 sourcetype = ZPROP_SRC_RECEIVED; 1994 } else { 1995 sourcetype = ZPROP_SRC_INHERITED; 1996 (void) strlcpy(source, 1997 sourceval, sizeof (source)); 1998 } 1999 } 2000 2001 if (received && (zfs_prop_get_recvd(zhp, 2002 pl->pl_user_prop, rbuf, sizeof (rbuf), 2003 cbp->cb_literal) == 0)) 2004 recvdval = rbuf; 2005 2006 zprop_print_one_property(zfs_get_name(zhp), cbp, 2007 pl->pl_user_prop, strval, sourcetype, 2008 source, recvdval); 2009 } 2010 } 2011 2012 return (0); 2013 } 2014 2015 static int 2016 zfs_do_get(int argc, char **argv) 2017 { 2018 zprop_get_cbdata_t cb = { 0 }; 2019 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2020 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 2021 char *fields; 2022 int ret = 0; 2023 int limit = 0; 2024 zprop_list_t fake_name = { 0 }; 2025 2026 /* 2027 * Set up default columns and sources. 2028 */ 2029 cb.cb_sources = ZPROP_SRC_ALL; 2030 cb.cb_columns[0] = GET_COL_NAME; 2031 cb.cb_columns[1] = GET_COL_PROPERTY; 2032 cb.cb_columns[2] = GET_COL_VALUE; 2033 cb.cb_columns[3] = GET_COL_SOURCE; 2034 cb.cb_type = ZFS_TYPE_DATASET; 2035 2036 /* check options */ 2037 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 2038 switch (c) { 2039 case 'p': 2040 cb.cb_literal = B_TRUE; 2041 break; 2042 case 'd': 2043 limit = parse_depth(optarg, &flags); 2044 break; 2045 case 'r': 2046 flags |= ZFS_ITER_RECURSE; 2047 break; 2048 case 'H': 2049 cb.cb_scripted = B_TRUE; 2050 break; 2051 case ':': 2052 (void) fprintf(stderr, gettext("missing argument for " 2053 "'%c' option\n"), optopt); 2054 usage(B_FALSE); 2055 break; 2056 case 'o': 2057 /* 2058 * Process the set of columns to display. We zero out 2059 * the structure to give us a blank slate. 2060 */ 2061 memset(&cb.cb_columns, 0, sizeof (cb.cb_columns)); 2062 2063 i = 0; 2064 for (char *tok; (tok = strsep(&optarg, ",")); ) { 2065 static const char *const col_subopts[] = 2066 { "name", "property", "value", 2067 "received", "source", "all" }; 2068 static const zfs_get_column_t col_subopt_col[] = 2069 { GET_COL_NAME, GET_COL_PROPERTY, GET_COL_VALUE, 2070 GET_COL_RECVD, GET_COL_SOURCE }; 2071 static const int col_subopt_flags[] = 2072 { 0, 0, 0, ZFS_ITER_RECVD_PROPS, 0 }; 2073 2074 if (i == ZFS_GET_NCOLS) { 2075 (void) fprintf(stderr, gettext("too " 2076 "many fields given to -o " 2077 "option\n")); 2078 usage(B_FALSE); 2079 } 2080 2081 for (c = 0; c < ARRAY_SIZE(col_subopts); ++c) 2082 if (strcmp(tok, col_subopts[c]) == 0) 2083 goto found; 2084 2085 (void) fprintf(stderr, 2086 gettext("invalid column name '%s'\n"), tok); 2087 usage(B_FALSE); 2088 2089 found: 2090 if (c >= 5) { 2091 if (i > 0) { 2092 (void) fprintf(stderr, 2093 gettext("\"all\" conflicts " 2094 "with specific fields " 2095 "given to -o option\n")); 2096 usage(B_FALSE); 2097 } 2098 2099 memcpy(cb.cb_columns, col_subopt_col, 2100 sizeof (col_subopt_col)); 2101 flags |= ZFS_ITER_RECVD_PROPS; 2102 i = ZFS_GET_NCOLS; 2103 } else { 2104 cb.cb_columns[i++] = col_subopt_col[c]; 2105 flags |= col_subopt_flags[c]; 2106 } 2107 } 2108 break; 2109 2110 case 's': 2111 cb.cb_sources = 0; 2112 2113 for (char *tok; (tok = strsep(&optarg, ",")); ) { 2114 static const char *const source_opt[] = { 2115 "local", "default", 2116 "inherited", "received", 2117 "temporary", "none" }; 2118 static const int source_flg[] = { 2119 ZPROP_SRC_LOCAL, ZPROP_SRC_DEFAULT, 2120 ZPROP_SRC_INHERITED, ZPROP_SRC_RECEIVED, 2121 ZPROP_SRC_TEMPORARY, ZPROP_SRC_NONE }; 2122 2123 for (i = 0; i < ARRAY_SIZE(source_opt); ++i) 2124 if (strcmp(tok, source_opt[i]) == 0) { 2125 cb.cb_sources |= source_flg[i]; 2126 goto found2; 2127 } 2128 2129 (void) fprintf(stderr, 2130 gettext("invalid source '%s'\n"), tok); 2131 usage(B_FALSE); 2132 found2:; 2133 } 2134 break; 2135 2136 case 't': 2137 types = 0; 2138 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 2139 2140 for (char *tok; (tok = strsep(&optarg, ",")); ) { 2141 static const char *const type_opts[] = { 2142 "filesystem", "volume", 2143 "snapshot", "snap", 2144 "bookmark", 2145 "all" }; 2146 static const int type_types[] = { 2147 ZFS_TYPE_FILESYSTEM, ZFS_TYPE_VOLUME, 2148 ZFS_TYPE_SNAPSHOT, ZFS_TYPE_SNAPSHOT, 2149 ZFS_TYPE_BOOKMARK, 2150 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK }; 2151 2152 for (i = 0; i < ARRAY_SIZE(type_opts); ++i) 2153 if (strcmp(tok, type_opts[i]) == 0) { 2154 types |= type_types[i]; 2155 goto found3; 2156 } 2157 2158 (void) fprintf(stderr, 2159 gettext("invalid type '%s'\n"), tok); 2160 usage(B_FALSE); 2161 found3:; 2162 } 2163 break; 2164 2165 case '?': 2166 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2167 optopt); 2168 usage(B_FALSE); 2169 } 2170 } 2171 2172 argc -= optind; 2173 argv += optind; 2174 2175 if (argc < 1) { 2176 (void) fprintf(stderr, gettext("missing property " 2177 "argument\n")); 2178 usage(B_FALSE); 2179 } 2180 2181 fields = argv[0]; 2182 2183 /* 2184 * Handle users who want to get all snapshots or bookmarks 2185 * of a dataset (ex. 'zfs get -t snapshot refer <dataset>'). 2186 */ 2187 if ((types == ZFS_TYPE_SNAPSHOT || types == ZFS_TYPE_BOOKMARK) && 2188 argc > 1 && (flags & ZFS_ITER_RECURSE) == 0 && limit == 0) { 2189 flags |= (ZFS_ITER_DEPTH_LIMIT | ZFS_ITER_RECURSE); 2190 limit = 1; 2191 } 2192 2193 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 2194 != 0) 2195 usage(B_FALSE); 2196 2197 argc--; 2198 argv++; 2199 2200 /* 2201 * As part of zfs_expand_proplist(), we keep track of the maximum column 2202 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 2203 * need to know the maximum name length. However, the user likely did 2204 * not specify 'name' as one of the properties to fetch, so we need to 2205 * make sure we always include at least this property for 2206 * print_get_headers() to work properly. 2207 */ 2208 if (cb.cb_proplist != NULL) { 2209 fake_name.pl_prop = ZFS_PROP_NAME; 2210 fake_name.pl_width = strlen(gettext("NAME")); 2211 fake_name.pl_next = cb.cb_proplist; 2212 cb.cb_proplist = &fake_name; 2213 } 2214 2215 cb.cb_first = B_TRUE; 2216 2217 /* run for each object */ 2218 ret = zfs_for_each(argc, argv, flags, types, NULL, 2219 &cb.cb_proplist, limit, get_callback, &cb); 2220 2221 if (cb.cb_proplist == &fake_name) 2222 zprop_free_list(fake_name.pl_next); 2223 else 2224 zprop_free_list(cb.cb_proplist); 2225 2226 return (ret); 2227 } 2228 2229 /* 2230 * inherit [-rS] <property> <fs|vol> ... 2231 * 2232 * -r Recurse over all children 2233 * -S Revert to received value, if any 2234 * 2235 * For each dataset specified on the command line, inherit the given property 2236 * from its parent. Inheriting a property at the pool level will cause it to 2237 * use the default value. The '-r' flag will recurse over all children, and is 2238 * useful for setting a property on a hierarchy-wide basis, regardless of any 2239 * local modifications for each dataset. 2240 */ 2241 2242 typedef struct inherit_cbdata { 2243 const char *cb_propname; 2244 boolean_t cb_received; 2245 } inherit_cbdata_t; 2246 2247 static int 2248 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 2249 { 2250 inherit_cbdata_t *cb = data; 2251 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 2252 2253 /* 2254 * If we're doing it recursively, then ignore properties that 2255 * are not valid for this type of dataset. 2256 */ 2257 if (prop != ZPROP_INVAL && 2258 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp), B_FALSE)) 2259 return (0); 2260 2261 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 2262 } 2263 2264 static int 2265 inherit_cb(zfs_handle_t *zhp, void *data) 2266 { 2267 inherit_cbdata_t *cb = data; 2268 2269 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 2270 } 2271 2272 static int 2273 zfs_do_inherit(int argc, char **argv) 2274 { 2275 int c; 2276 zfs_prop_t prop; 2277 inherit_cbdata_t cb = { 0 }; 2278 char *propname; 2279 int ret = 0; 2280 int flags = 0; 2281 boolean_t received = B_FALSE; 2282 2283 /* check options */ 2284 while ((c = getopt(argc, argv, "rS")) != -1) { 2285 switch (c) { 2286 case 'r': 2287 flags |= ZFS_ITER_RECURSE; 2288 break; 2289 case 'S': 2290 received = B_TRUE; 2291 break; 2292 case '?': 2293 default: 2294 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2295 optopt); 2296 usage(B_FALSE); 2297 } 2298 } 2299 2300 argc -= optind; 2301 argv += optind; 2302 2303 /* check number of arguments */ 2304 if (argc < 1) { 2305 (void) fprintf(stderr, gettext("missing property argument\n")); 2306 usage(B_FALSE); 2307 } 2308 if (argc < 2) { 2309 (void) fprintf(stderr, gettext("missing dataset argument\n")); 2310 usage(B_FALSE); 2311 } 2312 2313 propname = argv[0]; 2314 argc--; 2315 argv++; 2316 2317 if ((prop = zfs_name_to_prop(propname)) != ZPROP_USERPROP) { 2318 if (zfs_prop_readonly(prop)) { 2319 (void) fprintf(stderr, gettext( 2320 "%s property is read-only\n"), 2321 propname); 2322 return (1); 2323 } 2324 if (!zfs_prop_inheritable(prop) && !received) { 2325 (void) fprintf(stderr, gettext("'%s' property cannot " 2326 "be inherited\n"), propname); 2327 if (prop == ZFS_PROP_QUOTA || 2328 prop == ZFS_PROP_RESERVATION || 2329 prop == ZFS_PROP_REFQUOTA || 2330 prop == ZFS_PROP_REFRESERVATION) { 2331 (void) fprintf(stderr, gettext("use 'zfs set " 2332 "%s=none' to clear\n"), propname); 2333 (void) fprintf(stderr, gettext("use 'zfs " 2334 "inherit -S %s' to revert to received " 2335 "value\n"), propname); 2336 } 2337 return (1); 2338 } 2339 if (received && (prop == ZFS_PROP_VOLSIZE || 2340 prop == ZFS_PROP_VERSION)) { 2341 (void) fprintf(stderr, gettext("'%s' property cannot " 2342 "be reverted to a received value\n"), propname); 2343 return (1); 2344 } 2345 } else if (!zfs_prop_user(propname)) { 2346 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 2347 propname); 2348 usage(B_FALSE); 2349 } 2350 2351 cb.cb_propname = propname; 2352 cb.cb_received = received; 2353 2354 if (flags & ZFS_ITER_RECURSE) { 2355 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2356 NULL, NULL, 0, inherit_recurse_cb, &cb); 2357 } else { 2358 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2359 NULL, NULL, 0, inherit_cb, &cb); 2360 } 2361 2362 return (ret); 2363 } 2364 2365 typedef struct upgrade_cbdata { 2366 uint64_t cb_numupgraded; 2367 uint64_t cb_numsamegraded; 2368 uint64_t cb_numfailed; 2369 uint64_t cb_version; 2370 boolean_t cb_newer; 2371 boolean_t cb_foundone; 2372 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 2373 } upgrade_cbdata_t; 2374 2375 static int 2376 same_pool(zfs_handle_t *zhp, const char *name) 2377 { 2378 int len1 = strcspn(name, "/@"); 2379 const char *zhname = zfs_get_name(zhp); 2380 int len2 = strcspn(zhname, "/@"); 2381 2382 if (len1 != len2) 2383 return (B_FALSE); 2384 return (strncmp(name, zhname, len1) == 0); 2385 } 2386 2387 static int 2388 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2389 { 2390 upgrade_cbdata_t *cb = data; 2391 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2392 2393 /* list if it's old/new */ 2394 if ((!cb->cb_newer && version < ZPL_VERSION) || 2395 (cb->cb_newer && version > ZPL_VERSION)) { 2396 char *str; 2397 if (cb->cb_newer) { 2398 str = gettext("The following filesystems are " 2399 "formatted using a newer software version and\n" 2400 "cannot be accessed on the current system.\n\n"); 2401 } else { 2402 str = gettext("The following filesystems are " 2403 "out of date, and can be upgraded. After being\n" 2404 "upgraded, these filesystems (and any 'zfs send' " 2405 "streams generated from\n" 2406 "subsequent snapshots) will no longer be " 2407 "accessible by older software versions.\n\n"); 2408 } 2409 2410 if (!cb->cb_foundone) { 2411 (void) puts(str); 2412 (void) printf(gettext("VER FILESYSTEM\n")); 2413 (void) printf(gettext("--- ------------\n")); 2414 cb->cb_foundone = B_TRUE; 2415 } 2416 2417 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2418 } 2419 2420 return (0); 2421 } 2422 2423 static int 2424 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2425 { 2426 upgrade_cbdata_t *cb = data; 2427 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2428 int needed_spa_version; 2429 int spa_version; 2430 2431 if (zfs_spa_version(zhp, &spa_version) < 0) 2432 return (-1); 2433 2434 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2435 2436 if (needed_spa_version < 0) 2437 return (-1); 2438 2439 if (spa_version < needed_spa_version) { 2440 /* can't upgrade */ 2441 (void) printf(gettext("%s: can not be " 2442 "upgraded; the pool version needs to first " 2443 "be upgraded\nto version %d\n\n"), 2444 zfs_get_name(zhp), needed_spa_version); 2445 cb->cb_numfailed++; 2446 return (0); 2447 } 2448 2449 /* upgrade */ 2450 if (version < cb->cb_version) { 2451 char verstr[24]; 2452 (void) snprintf(verstr, sizeof (verstr), 2453 "%llu", (u_longlong_t)cb->cb_version); 2454 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2455 /* 2456 * If they did "zfs upgrade -a", then we could 2457 * be doing ioctls to different pools. We need 2458 * to log this history once to each pool, and bypass 2459 * the normal history logging that happens in main(). 2460 */ 2461 (void) zpool_log_history(g_zfs, history_str); 2462 log_history = B_FALSE; 2463 } 2464 if (zfs_prop_set(zhp, "version", verstr) == 0) 2465 cb->cb_numupgraded++; 2466 else 2467 cb->cb_numfailed++; 2468 (void) strlcpy(cb->cb_lastfs, zfs_get_name(zhp), 2469 sizeof (cb->cb_lastfs)); 2470 } else if (version > cb->cb_version) { 2471 /* can't downgrade */ 2472 (void) printf(gettext("%s: can not be downgraded; " 2473 "it is already at version %u\n"), 2474 zfs_get_name(zhp), version); 2475 cb->cb_numfailed++; 2476 } else { 2477 cb->cb_numsamegraded++; 2478 } 2479 return (0); 2480 } 2481 2482 /* 2483 * zfs upgrade 2484 * zfs upgrade -v 2485 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2486 */ 2487 static int 2488 zfs_do_upgrade(int argc, char **argv) 2489 { 2490 boolean_t all = B_FALSE; 2491 boolean_t showversions = B_FALSE; 2492 int ret = 0; 2493 upgrade_cbdata_t cb = { 0 }; 2494 int c; 2495 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2496 2497 /* check options */ 2498 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2499 switch (c) { 2500 case 'r': 2501 flags |= ZFS_ITER_RECURSE; 2502 break; 2503 case 'v': 2504 showversions = B_TRUE; 2505 break; 2506 case 'V': 2507 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2508 optarg, &cb.cb_version) != 0) { 2509 (void) fprintf(stderr, 2510 gettext("invalid version %s\n"), optarg); 2511 usage(B_FALSE); 2512 } 2513 break; 2514 case 'a': 2515 all = B_TRUE; 2516 break; 2517 case '?': 2518 default: 2519 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2520 optopt); 2521 usage(B_FALSE); 2522 } 2523 } 2524 2525 argc -= optind; 2526 argv += optind; 2527 2528 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2529 usage(B_FALSE); 2530 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2531 cb.cb_version || argc)) 2532 usage(B_FALSE); 2533 if ((all || argc) && (showversions)) 2534 usage(B_FALSE); 2535 if (all && argc) 2536 usage(B_FALSE); 2537 2538 if (showversions) { 2539 /* Show info on available versions. */ 2540 (void) printf(gettext("The following filesystem versions are " 2541 "supported:\n\n")); 2542 (void) printf(gettext("VER DESCRIPTION\n")); 2543 (void) printf("--- -----------------------------------------" 2544 "---------------\n"); 2545 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2546 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2547 (void) printf(gettext(" 3 Case insensitive and filesystem " 2548 "user identifier (FUID)\n")); 2549 (void) printf(gettext(" 4 userquota, groupquota " 2550 "properties\n")); 2551 (void) printf(gettext(" 5 System attributes\n")); 2552 (void) printf(gettext("\nFor more information on a particular " 2553 "version, including supported releases,\n")); 2554 (void) printf("see the ZFS Administration Guide.\n\n"); 2555 ret = 0; 2556 } else if (argc || all) { 2557 /* Upgrade filesystems */ 2558 if (cb.cb_version == 0) 2559 cb.cb_version = ZPL_VERSION; 2560 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2561 NULL, NULL, 0, upgrade_set_callback, &cb); 2562 (void) printf(gettext("%llu filesystems upgraded\n"), 2563 (u_longlong_t)cb.cb_numupgraded); 2564 if (cb.cb_numsamegraded) { 2565 (void) printf(gettext("%llu filesystems already at " 2566 "this version\n"), 2567 (u_longlong_t)cb.cb_numsamegraded); 2568 } 2569 if (cb.cb_numfailed != 0) 2570 ret = 1; 2571 } else { 2572 /* List old-version filesystems */ 2573 boolean_t found; 2574 (void) printf(gettext("This system is currently running " 2575 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2576 2577 flags |= ZFS_ITER_RECURSE; 2578 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2579 NULL, NULL, 0, upgrade_list_callback, &cb); 2580 2581 found = cb.cb_foundone; 2582 cb.cb_foundone = B_FALSE; 2583 cb.cb_newer = B_TRUE; 2584 2585 ret |= zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2586 NULL, NULL, 0, upgrade_list_callback, &cb); 2587 2588 if (!cb.cb_foundone && !found) { 2589 (void) printf(gettext("All filesystems are " 2590 "formatted with the current version.\n")); 2591 } 2592 } 2593 2594 return (ret); 2595 } 2596 2597 /* 2598 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2599 * [-S field [-S field]...] [-t type[,...]] 2600 * filesystem | snapshot | path 2601 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2602 * [-S field [-S field]...] [-t type[,...]] 2603 * filesystem | snapshot | path 2604 * zfs projectspace [-Hp] [-o field[,...]] [-s field [-s field]...] 2605 * [-S field [-S field]...] filesystem | snapshot | path 2606 * 2607 * -H Scripted mode; elide headers and separate columns by tabs. 2608 * -i Translate SID to POSIX ID. 2609 * -n Print numeric ID instead of user/group name. 2610 * -o Control which fields to display. 2611 * -p Use exact (parsable) numeric output. 2612 * -s Specify sort columns, descending order. 2613 * -S Specify sort columns, ascending order. 2614 * -t Control which object types to display. 2615 * 2616 * Displays space consumed by, and quotas on, each user in the specified 2617 * filesystem or snapshot. 2618 */ 2619 2620 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2621 enum us_field_types { 2622 USFIELD_TYPE, 2623 USFIELD_NAME, 2624 USFIELD_USED, 2625 USFIELD_QUOTA, 2626 USFIELD_OBJUSED, 2627 USFIELD_OBJQUOTA 2628 }; 2629 static const char *const us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA", 2630 "OBJUSED", "OBJQUOTA" }; 2631 static const char *const us_field_names[] = { "type", "name", "used", "quota", 2632 "objused", "objquota" }; 2633 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2634 2635 #define USTYPE_PSX_GRP (1 << 0) 2636 #define USTYPE_PSX_USR (1 << 1) 2637 #define USTYPE_SMB_GRP (1 << 2) 2638 #define USTYPE_SMB_USR (1 << 3) 2639 #define USTYPE_PROJ (1 << 4) 2640 #define USTYPE_ALL \ 2641 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR | \ 2642 USTYPE_PROJ) 2643 2644 static int us_type_bits[] = { 2645 USTYPE_PSX_GRP, 2646 USTYPE_PSX_USR, 2647 USTYPE_SMB_GRP, 2648 USTYPE_SMB_USR, 2649 USTYPE_ALL 2650 }; 2651 static const char *const us_type_names[] = { "posixgroup", "posixuser", 2652 "smbgroup", "smbuser", "all" }; 2653 2654 typedef struct us_node { 2655 nvlist_t *usn_nvl; 2656 uu_avl_node_t usn_avlnode; 2657 uu_list_node_t usn_listnode; 2658 } us_node_t; 2659 2660 typedef struct us_cbdata { 2661 nvlist_t **cb_nvlp; 2662 uu_avl_pool_t *cb_avl_pool; 2663 uu_avl_t *cb_avl; 2664 boolean_t cb_numname; 2665 boolean_t cb_nicenum; 2666 boolean_t cb_sid2posix; 2667 zfs_userquota_prop_t cb_prop; 2668 zfs_sort_column_t *cb_sortcol; 2669 size_t cb_width[USFIELD_LAST]; 2670 } us_cbdata_t; 2671 2672 static boolean_t us_populated = B_FALSE; 2673 2674 typedef struct { 2675 zfs_sort_column_t *si_sortcol; 2676 boolean_t si_numname; 2677 } us_sort_info_t; 2678 2679 static int 2680 us_field_index(const char *field) 2681 { 2682 for (int i = 0; i < USFIELD_LAST; i++) { 2683 if (strcmp(field, us_field_names[i]) == 0) 2684 return (i); 2685 } 2686 2687 return (-1); 2688 } 2689 2690 static int 2691 us_compare(const void *larg, const void *rarg, void *unused) 2692 { 2693 const us_node_t *l = larg; 2694 const us_node_t *r = rarg; 2695 us_sort_info_t *si = (us_sort_info_t *)unused; 2696 zfs_sort_column_t *sortcol = si->si_sortcol; 2697 boolean_t numname = si->si_numname; 2698 nvlist_t *lnvl = l->usn_nvl; 2699 nvlist_t *rnvl = r->usn_nvl; 2700 int rc = 0; 2701 boolean_t lvb, rvb; 2702 2703 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2704 char *lvstr = (char *)""; 2705 char *rvstr = (char *)""; 2706 uint32_t lv32 = 0; 2707 uint32_t rv32 = 0; 2708 uint64_t lv64 = 0; 2709 uint64_t rv64 = 0; 2710 zfs_prop_t prop = sortcol->sc_prop; 2711 const char *propname = NULL; 2712 boolean_t reverse = sortcol->sc_reverse; 2713 2714 switch (prop) { 2715 case ZFS_PROP_TYPE: 2716 propname = "type"; 2717 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2718 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2719 if (rv32 != lv32) 2720 rc = (rv32 < lv32) ? 1 : -1; 2721 break; 2722 case ZFS_PROP_NAME: 2723 propname = "name"; 2724 if (numname) { 2725 compare_nums: 2726 (void) nvlist_lookup_uint64(lnvl, propname, 2727 &lv64); 2728 (void) nvlist_lookup_uint64(rnvl, propname, 2729 &rv64); 2730 if (rv64 != lv64) 2731 rc = (rv64 < lv64) ? 1 : -1; 2732 } else { 2733 if ((nvlist_lookup_string(lnvl, propname, 2734 &lvstr) == ENOENT) || 2735 (nvlist_lookup_string(rnvl, propname, 2736 &rvstr) == ENOENT)) { 2737 goto compare_nums; 2738 } 2739 rc = strcmp(lvstr, rvstr); 2740 } 2741 break; 2742 case ZFS_PROP_USED: 2743 case ZFS_PROP_QUOTA: 2744 if (!us_populated) 2745 break; 2746 if (prop == ZFS_PROP_USED) 2747 propname = "used"; 2748 else 2749 propname = "quota"; 2750 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2751 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2752 if (rv64 != lv64) 2753 rc = (rv64 < lv64) ? 1 : -1; 2754 break; 2755 2756 default: 2757 break; 2758 } 2759 2760 if (rc != 0) { 2761 if (rc < 0) 2762 return (reverse ? 1 : -1); 2763 else 2764 return (reverse ? -1 : 1); 2765 } 2766 } 2767 2768 /* 2769 * If entries still seem to be the same, check if they are of the same 2770 * type (smbentity is added only if we are doing SID to POSIX ID 2771 * translation where we can have duplicate type/name combinations). 2772 */ 2773 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2774 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2775 lvb != rvb) 2776 return (lvb < rvb ? -1 : 1); 2777 2778 return (0); 2779 } 2780 2781 static boolean_t 2782 zfs_prop_is_user(unsigned p) 2783 { 2784 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA || 2785 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA); 2786 } 2787 2788 static boolean_t 2789 zfs_prop_is_group(unsigned p) 2790 { 2791 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA || 2792 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA); 2793 } 2794 2795 static boolean_t 2796 zfs_prop_is_project(unsigned p) 2797 { 2798 return (p == ZFS_PROP_PROJECTUSED || p == ZFS_PROP_PROJECTQUOTA || 2799 p == ZFS_PROP_PROJECTOBJUSED || p == ZFS_PROP_PROJECTOBJQUOTA); 2800 } 2801 2802 static inline const char * 2803 us_type2str(unsigned field_type) 2804 { 2805 switch (field_type) { 2806 case USTYPE_PSX_USR: 2807 return ("POSIX User"); 2808 case USTYPE_PSX_GRP: 2809 return ("POSIX Group"); 2810 case USTYPE_SMB_USR: 2811 return ("SMB User"); 2812 case USTYPE_SMB_GRP: 2813 return ("SMB Group"); 2814 case USTYPE_PROJ: 2815 return ("Project"); 2816 default: 2817 return ("Undefined"); 2818 } 2819 } 2820 2821 static int 2822 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2823 { 2824 us_cbdata_t *cb = (us_cbdata_t *)arg; 2825 zfs_userquota_prop_t prop = cb->cb_prop; 2826 char *name = NULL; 2827 const char *propname; 2828 char sizebuf[32]; 2829 us_node_t *node; 2830 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2831 uu_avl_t *avl = cb->cb_avl; 2832 uu_avl_index_t idx; 2833 nvlist_t *props; 2834 us_node_t *n; 2835 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2836 unsigned type = 0; 2837 const char *typestr; 2838 size_t namelen; 2839 size_t typelen; 2840 size_t sizelen; 2841 int typeidx, nameidx, sizeidx; 2842 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2843 boolean_t smbentity = B_FALSE; 2844 2845 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2846 nomem(); 2847 node = safe_malloc(sizeof (us_node_t)); 2848 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2849 node->usn_nvl = props; 2850 2851 if (domain != NULL && domain[0] != '\0') { 2852 #ifdef HAVE_IDMAP 2853 /* SMB */ 2854 char sid[MAXNAMELEN + 32]; 2855 uid_t id; 2856 uint64_t classes; 2857 int err; 2858 directory_error_t e; 2859 2860 smbentity = B_TRUE; 2861 2862 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2863 2864 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2865 type = USTYPE_SMB_GRP; 2866 err = sid_to_id(sid, B_FALSE, &id); 2867 } else { 2868 type = USTYPE_SMB_USR; 2869 err = sid_to_id(sid, B_TRUE, &id); 2870 } 2871 2872 if (err == 0) { 2873 rid = id; 2874 if (!cb->cb_sid2posix) { 2875 e = directory_name_from_sid(NULL, sid, &name, 2876 &classes); 2877 if (e != NULL) 2878 directory_error_free(e); 2879 if (name == NULL) 2880 name = sid; 2881 } 2882 } 2883 #else 2884 nvlist_free(props); 2885 free(node); 2886 2887 return (-1); 2888 #endif /* HAVE_IDMAP */ 2889 } 2890 2891 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2892 /* POSIX or -i */ 2893 if (zfs_prop_is_group(prop)) { 2894 type = USTYPE_PSX_GRP; 2895 if (!cb->cb_numname) { 2896 struct group *g; 2897 2898 if ((g = getgrgid(rid)) != NULL) 2899 name = g->gr_name; 2900 } 2901 } else if (zfs_prop_is_user(prop)) { 2902 type = USTYPE_PSX_USR; 2903 if (!cb->cb_numname) { 2904 struct passwd *p; 2905 2906 if ((p = getpwuid(rid)) != NULL) 2907 name = p->pw_name; 2908 } 2909 } else { 2910 type = USTYPE_PROJ; 2911 } 2912 } 2913 2914 /* 2915 * Make sure that the type/name combination is unique when doing 2916 * SID to POSIX ID translation (hence changing the type from SMB to 2917 * POSIX). 2918 */ 2919 if (cb->cb_sid2posix && 2920 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2921 nomem(); 2922 2923 /* Calculate/update width of TYPE field */ 2924 typestr = us_type2str(type); 2925 typelen = strlen(gettext(typestr)); 2926 typeidx = us_field_index("type"); 2927 if (typelen > cb->cb_width[typeidx]) 2928 cb->cb_width[typeidx] = typelen; 2929 if (nvlist_add_uint32(props, "type", type) != 0) 2930 nomem(); 2931 2932 /* Calculate/update width of NAME field */ 2933 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2934 if (nvlist_add_uint64(props, "name", rid) != 0) 2935 nomem(); 2936 namelen = snprintf(NULL, 0, "%u", rid); 2937 } else { 2938 if (nvlist_add_string(props, "name", name) != 0) 2939 nomem(); 2940 namelen = strlen(name); 2941 } 2942 nameidx = us_field_index("name"); 2943 if (nameidx >= 0 && namelen > cb->cb_width[nameidx]) 2944 cb->cb_width[nameidx] = namelen; 2945 2946 /* 2947 * Check if this type/name combination is in the list and update it; 2948 * otherwise add new node to the list. 2949 */ 2950 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2951 uu_avl_insert(avl, node, idx); 2952 } else { 2953 nvlist_free(props); 2954 free(node); 2955 node = n; 2956 props = node->usn_nvl; 2957 } 2958 2959 /* Calculate/update width of USED/QUOTA fields */ 2960 if (cb->cb_nicenum) { 2961 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2962 prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2963 prop == ZFS_PROP_PROJECTUSED || 2964 prop == ZFS_PROP_PROJECTQUOTA) { 2965 zfs_nicebytes(space, sizebuf, sizeof (sizebuf)); 2966 } else { 2967 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2968 } 2969 } else { 2970 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", 2971 (u_longlong_t)space); 2972 } 2973 sizelen = strlen(sizebuf); 2974 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2975 prop == ZFS_PROP_PROJECTUSED) { 2976 propname = "used"; 2977 if (!nvlist_exists(props, "quota")) 2978 (void) nvlist_add_uint64(props, "quota", 0); 2979 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2980 prop == ZFS_PROP_PROJECTQUOTA) { 2981 propname = "quota"; 2982 if (!nvlist_exists(props, "used")) 2983 (void) nvlist_add_uint64(props, "used", 0); 2984 } else if (prop == ZFS_PROP_USEROBJUSED || 2985 prop == ZFS_PROP_GROUPOBJUSED || prop == ZFS_PROP_PROJECTOBJUSED) { 2986 propname = "objused"; 2987 if (!nvlist_exists(props, "objquota")) 2988 (void) nvlist_add_uint64(props, "objquota", 0); 2989 } else if (prop == ZFS_PROP_USEROBJQUOTA || 2990 prop == ZFS_PROP_GROUPOBJQUOTA || 2991 prop == ZFS_PROP_PROJECTOBJQUOTA) { 2992 propname = "objquota"; 2993 if (!nvlist_exists(props, "objused")) 2994 (void) nvlist_add_uint64(props, "objused", 0); 2995 } else { 2996 return (-1); 2997 } 2998 sizeidx = us_field_index(propname); 2999 if (sizeidx >= 0 && sizelen > cb->cb_width[sizeidx]) 3000 cb->cb_width[sizeidx] = sizelen; 3001 3002 if (nvlist_add_uint64(props, propname, space) != 0) 3003 nomem(); 3004 3005 return (0); 3006 } 3007 3008 static void 3009 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 3010 size_t *width, us_node_t *node) 3011 { 3012 nvlist_t *nvl = node->usn_nvl; 3013 char valstr[MAXNAMELEN]; 3014 boolean_t first = B_TRUE; 3015 int cfield = 0; 3016 int field; 3017 uint32_t ustype; 3018 3019 /* Check type */ 3020 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 3021 if (!(ustype & types)) 3022 return; 3023 3024 while ((field = fields[cfield]) != USFIELD_LAST) { 3025 nvpair_t *nvp = NULL; 3026 data_type_t type; 3027 uint32_t val32 = -1; 3028 uint64_t val64 = -1; 3029 const char *strval = "-"; 3030 3031 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) 3032 if (strcmp(nvpair_name(nvp), 3033 us_field_names[field]) == 0) 3034 break; 3035 3036 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp); 3037 switch (type) { 3038 case DATA_TYPE_UINT32: 3039 val32 = fnvpair_value_uint32(nvp); 3040 break; 3041 case DATA_TYPE_UINT64: 3042 val64 = fnvpair_value_uint64(nvp); 3043 break; 3044 case DATA_TYPE_STRING: 3045 strval = fnvpair_value_string(nvp); 3046 break; 3047 case DATA_TYPE_UNKNOWN: 3048 break; 3049 default: 3050 (void) fprintf(stderr, "invalid data type\n"); 3051 } 3052 3053 switch (field) { 3054 case USFIELD_TYPE: 3055 if (type == DATA_TYPE_UINT32) 3056 strval = us_type2str(val32); 3057 break; 3058 case USFIELD_NAME: 3059 if (type == DATA_TYPE_UINT64) { 3060 (void) sprintf(valstr, "%llu", 3061 (u_longlong_t)val64); 3062 strval = valstr; 3063 } 3064 break; 3065 case USFIELD_USED: 3066 case USFIELD_QUOTA: 3067 if (type == DATA_TYPE_UINT64) { 3068 if (parsable) { 3069 (void) sprintf(valstr, "%llu", 3070 (u_longlong_t)val64); 3071 strval = valstr; 3072 } else if (field == USFIELD_QUOTA && 3073 val64 == 0) { 3074 strval = "none"; 3075 } else { 3076 zfs_nicebytes(val64, valstr, 3077 sizeof (valstr)); 3078 strval = valstr; 3079 } 3080 } 3081 break; 3082 case USFIELD_OBJUSED: 3083 case USFIELD_OBJQUOTA: 3084 if (type == DATA_TYPE_UINT64) { 3085 if (parsable) { 3086 (void) sprintf(valstr, "%llu", 3087 (u_longlong_t)val64); 3088 strval = valstr; 3089 } else if (field == USFIELD_OBJQUOTA && 3090 val64 == 0) { 3091 strval = "none"; 3092 } else { 3093 zfs_nicenum(val64, valstr, 3094 sizeof (valstr)); 3095 strval = valstr; 3096 } 3097 } 3098 break; 3099 } 3100 3101 if (!first) { 3102 if (scripted) 3103 (void) putchar('\t'); 3104 else 3105 (void) fputs(" ", stdout); 3106 } 3107 if (scripted) 3108 (void) fputs(strval, stdout); 3109 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 3110 (void) printf("%-*s", (int)width[field], strval); 3111 else 3112 (void) printf("%*s", (int)width[field], strval); 3113 3114 first = B_FALSE; 3115 cfield++; 3116 } 3117 3118 (void) putchar('\n'); 3119 } 3120 3121 static void 3122 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 3123 size_t *width, boolean_t rmnode, uu_avl_t *avl) 3124 { 3125 us_node_t *node; 3126 const char *col; 3127 int cfield = 0; 3128 int field; 3129 3130 if (!scripted) { 3131 boolean_t first = B_TRUE; 3132 3133 while ((field = fields[cfield]) != USFIELD_LAST) { 3134 col = gettext(us_field_hdr[field]); 3135 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 3136 (void) printf(first ? "%-*s" : " %-*s", 3137 (int)width[field], col); 3138 } else { 3139 (void) printf(first ? "%*s" : " %*s", 3140 (int)width[field], col); 3141 } 3142 first = B_FALSE; 3143 cfield++; 3144 } 3145 (void) printf("\n"); 3146 } 3147 3148 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 3149 print_us_node(scripted, parsable, fields, types, width, node); 3150 if (rmnode) 3151 nvlist_free(node->usn_nvl); 3152 } 3153 } 3154 3155 static int 3156 zfs_do_userspace(int argc, char **argv) 3157 { 3158 zfs_handle_t *zhp; 3159 zfs_userquota_prop_t p; 3160 uu_avl_pool_t *avl_pool; 3161 uu_avl_t *avl_tree; 3162 uu_avl_walk_t *walk; 3163 char *delim; 3164 char deffields[] = "type,name,used,quota,objused,objquota"; 3165 char *ofield = NULL; 3166 char *tfield = NULL; 3167 int cfield = 0; 3168 int fields[256]; 3169 int i; 3170 boolean_t scripted = B_FALSE; 3171 boolean_t prtnum = B_FALSE; 3172 boolean_t parsable = B_FALSE; 3173 boolean_t sid2posix = B_FALSE; 3174 int ret = 0; 3175 int c; 3176 zfs_sort_column_t *sortcol = NULL; 3177 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 3178 us_cbdata_t cb; 3179 us_node_t *node; 3180 us_node_t *rmnode; 3181 uu_list_pool_t *listpool; 3182 uu_list_t *list; 3183 uu_avl_index_t idx = 0; 3184 uu_list_index_t idx2 = 0; 3185 3186 if (argc < 2) 3187 usage(B_FALSE); 3188 3189 if (strcmp(argv[0], "groupspace") == 0) { 3190 /* Toggle default group types */ 3191 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 3192 } else if (strcmp(argv[0], "projectspace") == 0) { 3193 types = USTYPE_PROJ; 3194 prtnum = B_TRUE; 3195 } 3196 3197 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 3198 switch (c) { 3199 case 'n': 3200 if (types == USTYPE_PROJ) { 3201 (void) fprintf(stderr, 3202 gettext("invalid option 'n'\n")); 3203 usage(B_FALSE); 3204 } 3205 prtnum = B_TRUE; 3206 break; 3207 case 'H': 3208 scripted = B_TRUE; 3209 break; 3210 case 'p': 3211 parsable = B_TRUE; 3212 break; 3213 case 'o': 3214 ofield = optarg; 3215 break; 3216 case 's': 3217 case 'S': 3218 if (zfs_add_sort_column(&sortcol, optarg, 3219 c == 's' ? B_FALSE : B_TRUE) != 0) { 3220 (void) fprintf(stderr, 3221 gettext("invalid field '%s'\n"), optarg); 3222 usage(B_FALSE); 3223 } 3224 break; 3225 case 't': 3226 if (types == USTYPE_PROJ) { 3227 (void) fprintf(stderr, 3228 gettext("invalid option 't'\n")); 3229 usage(B_FALSE); 3230 } 3231 tfield = optarg; 3232 break; 3233 case 'i': 3234 if (types == USTYPE_PROJ) { 3235 (void) fprintf(stderr, 3236 gettext("invalid option 'i'\n")); 3237 usage(B_FALSE); 3238 } 3239 sid2posix = B_TRUE; 3240 break; 3241 case ':': 3242 (void) fprintf(stderr, gettext("missing argument for " 3243 "'%c' option\n"), optopt); 3244 usage(B_FALSE); 3245 break; 3246 case '?': 3247 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3248 optopt); 3249 usage(B_FALSE); 3250 } 3251 } 3252 3253 argc -= optind; 3254 argv += optind; 3255 3256 if (argc < 1) { 3257 (void) fprintf(stderr, gettext("missing dataset name\n")); 3258 usage(B_FALSE); 3259 } 3260 if (argc > 1) { 3261 (void) fprintf(stderr, gettext("too many arguments\n")); 3262 usage(B_FALSE); 3263 } 3264 3265 /* Use default output fields if not specified using -o */ 3266 if (ofield == NULL) 3267 ofield = deffields; 3268 do { 3269 if ((delim = strchr(ofield, ',')) != NULL) 3270 *delim = '\0'; 3271 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 3272 (void) fprintf(stderr, gettext("invalid type '%s' " 3273 "for -o option\n"), ofield); 3274 return (-1); 3275 } 3276 if (delim != NULL) 3277 ofield = delim + 1; 3278 } while (delim != NULL); 3279 fields[cfield] = USFIELD_LAST; 3280 3281 /* Override output types (-t option) */ 3282 if (tfield != NULL) { 3283 types = 0; 3284 3285 do { 3286 boolean_t found = B_FALSE; 3287 3288 if ((delim = strchr(tfield, ',')) != NULL) 3289 *delim = '\0'; 3290 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 3291 i++) { 3292 if (strcmp(tfield, us_type_names[i]) == 0) { 3293 found = B_TRUE; 3294 types |= us_type_bits[i]; 3295 break; 3296 } 3297 } 3298 if (!found) { 3299 (void) fprintf(stderr, gettext("invalid type " 3300 "'%s' for -t option\n"), tfield); 3301 return (-1); 3302 } 3303 if (delim != NULL) 3304 tfield = delim + 1; 3305 } while (delim != NULL); 3306 } 3307 3308 if ((zhp = zfs_path_to_zhandle(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | 3309 ZFS_TYPE_SNAPSHOT)) == NULL) 3310 return (1); 3311 if (zfs_get_underlying_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3312 (void) fprintf(stderr, gettext("operation is only applicable " 3313 "to filesystems and their snapshots\n")); 3314 zfs_close(zhp); 3315 return (1); 3316 } 3317 3318 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 3319 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 3320 nomem(); 3321 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 3322 nomem(); 3323 3324 /* Always add default sorting columns */ 3325 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 3326 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 3327 3328 cb.cb_sortcol = sortcol; 3329 cb.cb_numname = prtnum; 3330 cb.cb_nicenum = !parsable; 3331 cb.cb_avl_pool = avl_pool; 3332 cb.cb_avl = avl_tree; 3333 cb.cb_sid2posix = sid2posix; 3334 3335 for (i = 0; i < USFIELD_LAST; i++) 3336 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 3337 3338 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 3339 if ((zfs_prop_is_user(p) && 3340 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 3341 (zfs_prop_is_group(p) && 3342 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))) || 3343 (zfs_prop_is_project(p) && types != USTYPE_PROJ)) 3344 continue; 3345 3346 cb.cb_prop = p; 3347 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) { 3348 zfs_close(zhp); 3349 return (ret); 3350 } 3351 } 3352 zfs_close(zhp); 3353 3354 /* Sort the list */ 3355 if ((node = uu_avl_first(avl_tree)) == NULL) 3356 return (0); 3357 3358 us_populated = B_TRUE; 3359 3360 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 3361 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 3362 list = uu_list_create(listpool, NULL, UU_DEFAULT); 3363 uu_list_node_init(node, &node->usn_listnode, listpool); 3364 3365 while (node != NULL) { 3366 rmnode = node; 3367 node = uu_avl_next(avl_tree, node); 3368 uu_avl_remove(avl_tree, rmnode); 3369 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 3370 uu_list_insert(list, rmnode, idx2); 3371 } 3372 3373 for (node = uu_list_first(list); node != NULL; 3374 node = uu_list_next(list, node)) { 3375 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 3376 3377 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 3378 uu_avl_insert(avl_tree, node, idx); 3379 } 3380 3381 uu_list_destroy(list); 3382 uu_list_pool_destroy(listpool); 3383 3384 /* Print and free node nvlist memory */ 3385 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 3386 cb.cb_avl); 3387 3388 zfs_free_sort_columns(sortcol); 3389 3390 /* Clean up the AVL tree */ 3391 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 3392 nomem(); 3393 3394 while ((node = uu_avl_walk_next(walk)) != NULL) { 3395 uu_avl_remove(cb.cb_avl, node); 3396 free(node); 3397 } 3398 3399 uu_avl_walk_end(walk); 3400 uu_avl_destroy(avl_tree); 3401 uu_avl_pool_destroy(avl_pool); 3402 3403 return (ret); 3404 } 3405 3406 /* 3407 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] 3408 * [-t type[,...]] [filesystem|volume|snapshot] ... 3409 * 3410 * -H Scripted mode; elide headers and separate columns by tabs 3411 * -p Display values in parsable (literal) format. 3412 * -r Recurse over all children 3413 * -d Limit recursion by depth. 3414 * -o Control which fields to display. 3415 * -s Specify sort columns, descending order. 3416 * -S Specify sort columns, ascending order. 3417 * -t Control which object types to display. 3418 * 3419 * When given no arguments, list all filesystems in the system. 3420 * Otherwise, list the specified datasets, optionally recursing down them if 3421 * '-r' is specified. 3422 */ 3423 typedef struct list_cbdata { 3424 boolean_t cb_first; 3425 boolean_t cb_literal; 3426 boolean_t cb_scripted; 3427 zprop_list_t *cb_proplist; 3428 } list_cbdata_t; 3429 3430 /* 3431 * Given a list of columns to display, output appropriate headers for each one. 3432 */ 3433 static void 3434 print_header(list_cbdata_t *cb) 3435 { 3436 zprop_list_t *pl = cb->cb_proplist; 3437 char headerbuf[ZFS_MAXPROPLEN]; 3438 const char *header; 3439 int i; 3440 boolean_t first = B_TRUE; 3441 boolean_t right_justify; 3442 3443 for (; pl != NULL; pl = pl->pl_next) { 3444 if (!first) { 3445 (void) printf(" "); 3446 } else { 3447 first = B_FALSE; 3448 } 3449 3450 right_justify = B_FALSE; 3451 if (pl->pl_prop != ZPROP_USERPROP) { 3452 header = zfs_prop_column_name(pl->pl_prop); 3453 right_justify = zfs_prop_align_right(pl->pl_prop); 3454 } else { 3455 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 3456 headerbuf[i] = toupper(pl->pl_user_prop[i]); 3457 headerbuf[i] = '\0'; 3458 header = headerbuf; 3459 } 3460 3461 if (pl->pl_next == NULL && !right_justify) 3462 (void) printf("%s", header); 3463 else if (right_justify) 3464 (void) printf("%*s", (int)pl->pl_width, header); 3465 else 3466 (void) printf("%-*s", (int)pl->pl_width, header); 3467 } 3468 3469 (void) printf("\n"); 3470 } 3471 3472 /* 3473 * Given a dataset and a list of fields, print out all the properties according 3474 * to the described layout. 3475 */ 3476 static void 3477 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 3478 { 3479 zprop_list_t *pl = cb->cb_proplist; 3480 boolean_t first = B_TRUE; 3481 char property[ZFS_MAXPROPLEN]; 3482 nvlist_t *userprops = zfs_get_user_props(zhp); 3483 nvlist_t *propval; 3484 const char *propstr; 3485 boolean_t right_justify; 3486 3487 for (; pl != NULL; pl = pl->pl_next) { 3488 if (!first) { 3489 if (cb->cb_scripted) 3490 (void) putchar('\t'); 3491 else 3492 (void) fputs(" ", stdout); 3493 } else { 3494 first = B_FALSE; 3495 } 3496 3497 if (pl->pl_prop == ZFS_PROP_NAME) { 3498 (void) strlcpy(property, zfs_get_name(zhp), 3499 sizeof (property)); 3500 propstr = property; 3501 right_justify = zfs_prop_align_right(pl->pl_prop); 3502 } else if (pl->pl_prop != ZPROP_USERPROP) { 3503 if (zfs_prop_get(zhp, pl->pl_prop, property, 3504 sizeof (property), NULL, NULL, 0, 3505 cb->cb_literal) != 0) 3506 propstr = "-"; 3507 else 3508 propstr = property; 3509 right_justify = zfs_prop_align_right(pl->pl_prop); 3510 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3511 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3512 property, sizeof (property), cb->cb_literal) != 0) 3513 propstr = "-"; 3514 else 3515 propstr = property; 3516 right_justify = B_TRUE; 3517 } else if (zfs_prop_written(pl->pl_user_prop)) { 3518 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3519 property, sizeof (property), cb->cb_literal) != 0) 3520 propstr = "-"; 3521 else 3522 propstr = property; 3523 right_justify = B_TRUE; 3524 } else { 3525 if (nvlist_lookup_nvlist(userprops, 3526 pl->pl_user_prop, &propval) != 0) 3527 propstr = "-"; 3528 else 3529 propstr = fnvlist_lookup_string(propval, 3530 ZPROP_VALUE); 3531 right_justify = B_FALSE; 3532 } 3533 3534 /* 3535 * If this is being called in scripted mode, or if this is the 3536 * last column and it is left-justified, don't include a width 3537 * format specifier. 3538 */ 3539 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3540 (void) fputs(propstr, stdout); 3541 else if (right_justify) 3542 (void) printf("%*s", (int)pl->pl_width, propstr); 3543 else 3544 (void) printf("%-*s", (int)pl->pl_width, propstr); 3545 } 3546 3547 (void) putchar('\n'); 3548 } 3549 3550 /* 3551 * Generic callback function to list a dataset or snapshot. 3552 */ 3553 static int 3554 list_callback(zfs_handle_t *zhp, void *data) 3555 { 3556 list_cbdata_t *cbp = data; 3557 3558 if (cbp->cb_first) { 3559 if (!cbp->cb_scripted) 3560 print_header(cbp); 3561 cbp->cb_first = B_FALSE; 3562 } 3563 3564 print_dataset(zhp, cbp); 3565 3566 return (0); 3567 } 3568 3569 static int 3570 zfs_do_list(int argc, char **argv) 3571 { 3572 int c; 3573 char default_fields[] = 3574 "name,used,available,referenced,mountpoint"; 3575 int types = ZFS_TYPE_DATASET; 3576 boolean_t types_specified = B_FALSE; 3577 char *fields = default_fields; 3578 list_cbdata_t cb = { 0 }; 3579 int limit = 0; 3580 int ret = 0; 3581 zfs_sort_column_t *sortcol = NULL; 3582 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3583 3584 /* check options */ 3585 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3586 switch (c) { 3587 case 'o': 3588 fields = optarg; 3589 break; 3590 case 'p': 3591 cb.cb_literal = B_TRUE; 3592 flags |= ZFS_ITER_LITERAL_PROPS; 3593 break; 3594 case 'd': 3595 limit = parse_depth(optarg, &flags); 3596 break; 3597 case 'r': 3598 flags |= ZFS_ITER_RECURSE; 3599 break; 3600 case 'H': 3601 cb.cb_scripted = B_TRUE; 3602 break; 3603 case 's': 3604 if (zfs_add_sort_column(&sortcol, optarg, 3605 B_FALSE) != 0) { 3606 (void) fprintf(stderr, 3607 gettext("invalid property '%s'\n"), optarg); 3608 usage(B_FALSE); 3609 } 3610 break; 3611 case 'S': 3612 if (zfs_add_sort_column(&sortcol, optarg, 3613 B_TRUE) != 0) { 3614 (void) fprintf(stderr, 3615 gettext("invalid property '%s'\n"), optarg); 3616 usage(B_FALSE); 3617 } 3618 break; 3619 case 't': 3620 types = 0; 3621 types_specified = B_TRUE; 3622 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3623 3624 for (char *tok; (tok = strsep(&optarg, ",")); ) { 3625 static const char *const type_subopts[] = { 3626 "filesystem", "volume", 3627 "snapshot", "snap", 3628 "bookmark", 3629 "all" }; 3630 static const int type_types[] = { 3631 ZFS_TYPE_FILESYSTEM, ZFS_TYPE_VOLUME, 3632 ZFS_TYPE_SNAPSHOT, ZFS_TYPE_SNAPSHOT, 3633 ZFS_TYPE_BOOKMARK, 3634 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK }; 3635 3636 for (c = 0; c < ARRAY_SIZE(type_subopts); ++c) 3637 if (strcmp(tok, type_subopts[c]) == 0) { 3638 types |= type_types[c]; 3639 goto found3; 3640 } 3641 3642 (void) fprintf(stderr, 3643 gettext("invalid type '%s'\n"), tok); 3644 usage(B_FALSE); 3645 found3:; 3646 } 3647 break; 3648 case ':': 3649 (void) fprintf(stderr, gettext("missing argument for " 3650 "'%c' option\n"), optopt); 3651 usage(B_FALSE); 3652 break; 3653 case '?': 3654 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3655 optopt); 3656 usage(B_FALSE); 3657 } 3658 } 3659 3660 argc -= optind; 3661 argv += optind; 3662 3663 /* 3664 * If "-o space" and no types were specified, don't display snapshots. 3665 */ 3666 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3667 types &= ~ZFS_TYPE_SNAPSHOT; 3668 3669 /* 3670 * Handle users who want to list all snapshots or bookmarks 3671 * of the current dataset (ex. 'zfs list -t snapshot <dataset>'). 3672 */ 3673 if ((types == ZFS_TYPE_SNAPSHOT || types == ZFS_TYPE_BOOKMARK) && 3674 argc > 0 && (flags & ZFS_ITER_RECURSE) == 0 && limit == 0) { 3675 flags |= (ZFS_ITER_DEPTH_LIMIT | ZFS_ITER_RECURSE); 3676 limit = 1; 3677 } 3678 3679 /* 3680 * If the user specifies '-o all', the zprop_get_list() doesn't 3681 * normally include the name of the dataset. For 'zfs list', we always 3682 * want this property to be first. 3683 */ 3684 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3685 != 0) 3686 usage(B_FALSE); 3687 3688 cb.cb_first = B_TRUE; 3689 3690 /* 3691 * If we are only going to list and sort by properties that are "fast" 3692 * then we can use "simple" mode and avoid populating the properties 3693 * nvlist. 3694 */ 3695 if (zfs_list_only_by_fast(cb.cb_proplist) && 3696 zfs_sort_only_by_fast(sortcol)) 3697 flags |= ZFS_ITER_SIMPLE; 3698 3699 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3700 limit, list_callback, &cb); 3701 3702 zprop_free_list(cb.cb_proplist); 3703 zfs_free_sort_columns(sortcol); 3704 3705 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3706 (void) fprintf(stderr, gettext("no datasets available\n")); 3707 3708 return (ret); 3709 } 3710 3711 /* 3712 * zfs rename [-fu] <fs | snap | vol> <fs | snap | vol> 3713 * zfs rename [-f] -p <fs | vol> <fs | vol> 3714 * zfs rename [-u] -r <snap> <snap> 3715 * 3716 * Renames the given dataset to another of the same type. 3717 * 3718 * The '-p' flag creates all the non-existing ancestors of the target first. 3719 * The '-u' flag prevents file systems from being remounted during rename. 3720 */ 3721 static int 3722 zfs_do_rename(int argc, char **argv) 3723 { 3724 zfs_handle_t *zhp; 3725 renameflags_t flags = { 0 }; 3726 int c; 3727 int ret = 0; 3728 int types; 3729 boolean_t parents = B_FALSE; 3730 3731 /* check options */ 3732 while ((c = getopt(argc, argv, "pruf")) != -1) { 3733 switch (c) { 3734 case 'p': 3735 parents = B_TRUE; 3736 break; 3737 case 'r': 3738 flags.recursive = B_TRUE; 3739 break; 3740 case 'u': 3741 flags.nounmount = B_TRUE; 3742 break; 3743 case 'f': 3744 flags.forceunmount = B_TRUE; 3745 break; 3746 case '?': 3747 default: 3748 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3749 optopt); 3750 usage(B_FALSE); 3751 } 3752 } 3753 3754 argc -= optind; 3755 argv += optind; 3756 3757 /* check number of arguments */ 3758 if (argc < 1) { 3759 (void) fprintf(stderr, gettext("missing source dataset " 3760 "argument\n")); 3761 usage(B_FALSE); 3762 } 3763 if (argc < 2) { 3764 (void) fprintf(stderr, gettext("missing target dataset " 3765 "argument\n")); 3766 usage(B_FALSE); 3767 } 3768 if (argc > 2) { 3769 (void) fprintf(stderr, gettext("too many arguments\n")); 3770 usage(B_FALSE); 3771 } 3772 3773 if (flags.recursive && parents) { 3774 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3775 "exclusive\n")); 3776 usage(B_FALSE); 3777 } 3778 3779 if (flags.nounmount && parents) { 3780 (void) fprintf(stderr, gettext("-u and -p options are mutually " 3781 "exclusive\n")); 3782 usage(B_FALSE); 3783 } 3784 3785 if (flags.recursive && strchr(argv[0], '@') == 0) { 3786 (void) fprintf(stderr, gettext("source dataset for recursive " 3787 "rename must be a snapshot\n")); 3788 usage(B_FALSE); 3789 } 3790 3791 if (flags.nounmount) 3792 types = ZFS_TYPE_FILESYSTEM; 3793 else if (parents) 3794 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3795 else 3796 types = ZFS_TYPE_DATASET; 3797 3798 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3799 return (1); 3800 3801 /* If we were asked and the name looks good, try to create ancestors. */ 3802 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3803 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3804 zfs_close(zhp); 3805 return (1); 3806 } 3807 3808 ret = (zfs_rename(zhp, argv[1], flags) != 0); 3809 3810 zfs_close(zhp); 3811 return (ret); 3812 } 3813 3814 /* 3815 * zfs promote <fs> 3816 * 3817 * Promotes the given clone fs to be the parent 3818 */ 3819 static int 3820 zfs_do_promote(int argc, char **argv) 3821 { 3822 zfs_handle_t *zhp; 3823 int ret = 0; 3824 3825 /* check options */ 3826 if (argc > 1 && argv[1][0] == '-') { 3827 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3828 argv[1][1]); 3829 usage(B_FALSE); 3830 } 3831 3832 /* check number of arguments */ 3833 if (argc < 2) { 3834 (void) fprintf(stderr, gettext("missing clone filesystem" 3835 " argument\n")); 3836 usage(B_FALSE); 3837 } 3838 if (argc > 2) { 3839 (void) fprintf(stderr, gettext("too many arguments\n")); 3840 usage(B_FALSE); 3841 } 3842 3843 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3844 if (zhp == NULL) 3845 return (1); 3846 3847 ret = (zfs_promote(zhp) != 0); 3848 3849 3850 zfs_close(zhp); 3851 return (ret); 3852 } 3853 3854 static int 3855 zfs_do_redact(int argc, char **argv) 3856 { 3857 char *snap = NULL; 3858 char *bookname = NULL; 3859 char **rsnaps = NULL; 3860 int numrsnaps = 0; 3861 argv++; 3862 argc--; 3863 if (argc < 3) { 3864 (void) fprintf(stderr, gettext("too few arguments\n")); 3865 usage(B_FALSE); 3866 } 3867 3868 snap = argv[0]; 3869 bookname = argv[1]; 3870 rsnaps = argv + 2; 3871 numrsnaps = argc - 2; 3872 3873 nvlist_t *rsnapnv = fnvlist_alloc(); 3874 3875 for (int i = 0; i < numrsnaps; i++) { 3876 fnvlist_add_boolean(rsnapnv, rsnaps[i]); 3877 } 3878 3879 int err = lzc_redact(snap, bookname, rsnapnv); 3880 fnvlist_free(rsnapnv); 3881 3882 switch (err) { 3883 case 0: 3884 break; 3885 case ENOENT: 3886 (void) fprintf(stderr, 3887 gettext("provided snapshot %s does not exist\n"), snap); 3888 break; 3889 case EEXIST: 3890 (void) fprintf(stderr, gettext("specified redaction bookmark " 3891 "(%s) provided already exists\n"), bookname); 3892 break; 3893 case ENAMETOOLONG: 3894 (void) fprintf(stderr, gettext("provided bookmark name cannot " 3895 "be used, final name would be too long\n")); 3896 break; 3897 case E2BIG: 3898 (void) fprintf(stderr, gettext("too many redaction snapshots " 3899 "specified\n")); 3900 break; 3901 case EINVAL: 3902 if (strchr(bookname, '#') != NULL) 3903 (void) fprintf(stderr, gettext( 3904 "redaction bookmark name must not contain '#'\n")); 3905 else 3906 (void) fprintf(stderr, gettext( 3907 "redaction snapshot must be descendent of " 3908 "snapshot being redacted\n")); 3909 break; 3910 case EALREADY: 3911 (void) fprintf(stderr, gettext("attempted to redact redacted " 3912 "dataset or with respect to redacted dataset\n")); 3913 break; 3914 case ENOTSUP: 3915 (void) fprintf(stderr, gettext("redaction bookmarks feature " 3916 "not enabled\n")); 3917 break; 3918 case EXDEV: 3919 (void) fprintf(stderr, gettext("potentially invalid redaction " 3920 "snapshot; full dataset names required\n")); 3921 break; 3922 default: 3923 (void) fprintf(stderr, gettext("internal error: %s\n"), 3924 strerror(errno)); 3925 } 3926 3927 return (err); 3928 } 3929 3930 /* 3931 * zfs rollback [-rRf] <snapshot> 3932 * 3933 * -r Delete any intervening snapshots before doing rollback 3934 * -R Delete any snapshots and their clones 3935 * -f ignored for backwards compatibility 3936 * 3937 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3938 * since then and making it the active dataset. If more recent snapshots exist, 3939 * the command will complain unless the '-r' flag is given. 3940 */ 3941 typedef struct rollback_cbdata { 3942 uint64_t cb_create; 3943 uint8_t cb_younger_ds_printed; 3944 boolean_t cb_first; 3945 int cb_doclones; 3946 char *cb_target; 3947 int cb_error; 3948 boolean_t cb_recurse; 3949 } rollback_cbdata_t; 3950 3951 static int 3952 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3953 { 3954 rollback_cbdata_t *cbp = data; 3955 3956 if (cbp->cb_first && cbp->cb_recurse) { 3957 (void) fprintf(stderr, gettext("cannot rollback to " 3958 "'%s': clones of previous snapshots exist\n"), 3959 cbp->cb_target); 3960 (void) fprintf(stderr, gettext("use '-R' to " 3961 "force deletion of the following clones and " 3962 "dependents:\n")); 3963 cbp->cb_first = 0; 3964 cbp->cb_error = 1; 3965 } 3966 3967 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3968 3969 zfs_close(zhp); 3970 return (0); 3971 } 3972 3973 3974 /* 3975 * Report some snapshots/bookmarks more recent than the one specified. 3976 * Used when '-r' is not specified. We reuse this same callback for the 3977 * snapshot dependents - if 'cb_dependent' is set, then this is a 3978 * dependent and we should report it without checking the transaction group. 3979 */ 3980 static int 3981 rollback_check(zfs_handle_t *zhp, void *data) 3982 { 3983 rollback_cbdata_t *cbp = data; 3984 /* 3985 * Max number of younger snapshots and/or bookmarks to display before 3986 * we stop the iteration. 3987 */ 3988 const uint8_t max_younger = 32; 3989 3990 if (cbp->cb_doclones) { 3991 zfs_close(zhp); 3992 return (0); 3993 } 3994 3995 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3996 if (cbp->cb_first && !cbp->cb_recurse) { 3997 (void) fprintf(stderr, gettext("cannot " 3998 "rollback to '%s': more recent snapshots " 3999 "or bookmarks exist\n"), 4000 cbp->cb_target); 4001 (void) fprintf(stderr, gettext("use '-r' to " 4002 "force deletion of the following " 4003 "snapshots and bookmarks:\n")); 4004 cbp->cb_first = 0; 4005 cbp->cb_error = 1; 4006 } 4007 4008 if (cbp->cb_recurse) { 4009 if (zfs_iter_dependents(zhp, 0, B_TRUE, 4010 rollback_check_dependent, cbp) != 0) { 4011 zfs_close(zhp); 4012 return (-1); 4013 } 4014 } else { 4015 (void) fprintf(stderr, "%s\n", 4016 zfs_get_name(zhp)); 4017 cbp->cb_younger_ds_printed++; 4018 } 4019 } 4020 zfs_close(zhp); 4021 4022 if (cbp->cb_younger_ds_printed == max_younger) { 4023 /* 4024 * This non-recursive rollback is going to fail due to the 4025 * presence of snapshots and/or bookmarks that are younger than 4026 * the rollback target. 4027 * We printed some of the offending objects, now we stop 4028 * zfs_iter_snapshot/bookmark iteration so we can fail fast and 4029 * avoid iterating over the rest of the younger objects 4030 */ 4031 (void) fprintf(stderr, gettext("Output limited to %d " 4032 "snapshots/bookmarks\n"), max_younger); 4033 return (-1); 4034 } 4035 return (0); 4036 } 4037 4038 static int 4039 zfs_do_rollback(int argc, char **argv) 4040 { 4041 int ret = 0; 4042 int c; 4043 boolean_t force = B_FALSE; 4044 rollback_cbdata_t cb = { 0 }; 4045 zfs_handle_t *zhp, *snap; 4046 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 4047 char *delim; 4048 uint64_t min_txg = 0; 4049 4050 /* check options */ 4051 while ((c = getopt(argc, argv, "rRf")) != -1) { 4052 switch (c) { 4053 case 'r': 4054 cb.cb_recurse = 1; 4055 break; 4056 case 'R': 4057 cb.cb_recurse = 1; 4058 cb.cb_doclones = 1; 4059 break; 4060 case 'f': 4061 force = B_TRUE; 4062 break; 4063 case '?': 4064 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4065 optopt); 4066 usage(B_FALSE); 4067 } 4068 } 4069 4070 argc -= optind; 4071 argv += optind; 4072 4073 /* check number of arguments */ 4074 if (argc < 1) { 4075 (void) fprintf(stderr, gettext("missing dataset argument\n")); 4076 usage(B_FALSE); 4077 } 4078 if (argc > 1) { 4079 (void) fprintf(stderr, gettext("too many arguments\n")); 4080 usage(B_FALSE); 4081 } 4082 4083 /* open the snapshot */ 4084 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 4085 return (1); 4086 4087 /* open the parent dataset */ 4088 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 4089 verify((delim = strrchr(parentname, '@')) != NULL); 4090 *delim = '\0'; 4091 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 4092 zfs_close(snap); 4093 return (1); 4094 } 4095 4096 /* 4097 * Check for more recent snapshots and/or clones based on the presence 4098 * of '-r' and '-R'. 4099 */ 4100 cb.cb_target = argv[0]; 4101 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 4102 cb.cb_first = B_TRUE; 4103 cb.cb_error = 0; 4104 4105 if (cb.cb_create > 0) 4106 min_txg = cb.cb_create; 4107 4108 if ((ret = zfs_iter_snapshots(zhp, 0, rollback_check, &cb, 4109 min_txg, 0)) != 0) 4110 goto out; 4111 if ((ret = zfs_iter_bookmarks(zhp, 0, rollback_check, &cb)) != 0) 4112 goto out; 4113 4114 if ((ret = cb.cb_error) != 0) 4115 goto out; 4116 4117 /* 4118 * Rollback parent to the given snapshot. 4119 */ 4120 ret = zfs_rollback(zhp, snap, force); 4121 4122 out: 4123 zfs_close(snap); 4124 zfs_close(zhp); 4125 4126 if (ret == 0) 4127 return (0); 4128 else 4129 return (1); 4130 } 4131 4132 /* 4133 * zfs set property=value ... { fs | snap | vol } ... 4134 * 4135 * Sets the given properties for all datasets specified on the command line. 4136 */ 4137 4138 static int 4139 set_callback(zfs_handle_t *zhp, void *data) 4140 { 4141 nvlist_t *props = data; 4142 4143 if (zfs_prop_set_list(zhp, props) != 0) { 4144 switch (libzfs_errno(g_zfs)) { 4145 case EZFS_MOUNTFAILED: 4146 (void) fprintf(stderr, gettext("property may be set " 4147 "but unable to remount filesystem\n")); 4148 break; 4149 case EZFS_SHARENFSFAILED: 4150 (void) fprintf(stderr, gettext("property may be set " 4151 "but unable to reshare filesystem\n")); 4152 break; 4153 } 4154 return (1); 4155 } 4156 return (0); 4157 } 4158 4159 static int 4160 zfs_do_set(int argc, char **argv) 4161 { 4162 nvlist_t *props = NULL; 4163 int ds_start = -1; /* argv idx of first dataset arg */ 4164 int ret = 0; 4165 int i; 4166 4167 /* check for options */ 4168 if (argc > 1 && argv[1][0] == '-') { 4169 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4170 argv[1][1]); 4171 usage(B_FALSE); 4172 } 4173 4174 /* check number of arguments */ 4175 if (argc < 2) { 4176 (void) fprintf(stderr, gettext("missing arguments\n")); 4177 usage(B_FALSE); 4178 } 4179 if (argc < 3) { 4180 if (strchr(argv[1], '=') == NULL) { 4181 (void) fprintf(stderr, gettext("missing property=value " 4182 "argument(s)\n")); 4183 } else { 4184 (void) fprintf(stderr, gettext("missing dataset " 4185 "name(s)\n")); 4186 } 4187 usage(B_FALSE); 4188 } 4189 4190 /* validate argument order: prop=val args followed by dataset args */ 4191 for (i = 1; i < argc; i++) { 4192 if (strchr(argv[i], '=') != NULL) { 4193 if (ds_start > 0) { 4194 /* out-of-order prop=val argument */ 4195 (void) fprintf(stderr, gettext("invalid " 4196 "argument order\n")); 4197 usage(B_FALSE); 4198 } 4199 } else if (ds_start < 0) { 4200 ds_start = i; 4201 } 4202 } 4203 if (ds_start < 0) { 4204 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 4205 usage(B_FALSE); 4206 } 4207 4208 /* Populate a list of property settings */ 4209 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4210 nomem(); 4211 for (i = 1; i < ds_start; i++) { 4212 if (!parseprop(props, argv[i])) { 4213 ret = -1; 4214 goto error; 4215 } 4216 } 4217 4218 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 4219 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 4220 4221 error: 4222 nvlist_free(props); 4223 return (ret); 4224 } 4225 4226 typedef struct snap_cbdata { 4227 nvlist_t *sd_nvl; 4228 boolean_t sd_recursive; 4229 const char *sd_snapname; 4230 } snap_cbdata_t; 4231 4232 static int 4233 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 4234 { 4235 snap_cbdata_t *sd = arg; 4236 char *name; 4237 int rv = 0; 4238 int error; 4239 4240 if (sd->sd_recursive && 4241 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 4242 zfs_close(zhp); 4243 return (0); 4244 } 4245 4246 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 4247 if (error == -1) 4248 nomem(); 4249 fnvlist_add_boolean(sd->sd_nvl, name); 4250 free(name); 4251 4252 if (sd->sd_recursive) 4253 rv = zfs_iter_filesystems(zhp, 0, zfs_snapshot_cb, sd); 4254 zfs_close(zhp); 4255 return (rv); 4256 } 4257 4258 /* 4259 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 4260 * 4261 * Creates a snapshot with the given name. While functionally equivalent to 4262 * 'zfs create', it is a separate command to differentiate intent. 4263 */ 4264 static int 4265 zfs_do_snapshot(int argc, char **argv) 4266 { 4267 int ret = 0; 4268 int c; 4269 nvlist_t *props; 4270 snap_cbdata_t sd = { 0 }; 4271 boolean_t multiple_snaps = B_FALSE; 4272 4273 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4274 nomem(); 4275 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 4276 nomem(); 4277 4278 /* check options */ 4279 while ((c = getopt(argc, argv, "ro:")) != -1) { 4280 switch (c) { 4281 case 'o': 4282 if (!parseprop(props, optarg)) { 4283 nvlist_free(sd.sd_nvl); 4284 nvlist_free(props); 4285 return (1); 4286 } 4287 break; 4288 case 'r': 4289 sd.sd_recursive = B_TRUE; 4290 multiple_snaps = B_TRUE; 4291 break; 4292 case '?': 4293 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4294 optopt); 4295 goto usage; 4296 } 4297 } 4298 4299 argc -= optind; 4300 argv += optind; 4301 4302 /* check number of arguments */ 4303 if (argc < 1) { 4304 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4305 goto usage; 4306 } 4307 4308 if (argc > 1) 4309 multiple_snaps = B_TRUE; 4310 for (; argc > 0; argc--, argv++) { 4311 char *atp; 4312 zfs_handle_t *zhp; 4313 4314 atp = strchr(argv[0], '@'); 4315 if (atp == NULL) 4316 goto usage; 4317 *atp = '\0'; 4318 sd.sd_snapname = atp + 1; 4319 zhp = zfs_open(g_zfs, argv[0], 4320 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4321 if (zhp == NULL) 4322 goto usage; 4323 if (zfs_snapshot_cb(zhp, &sd) != 0) 4324 goto usage; 4325 } 4326 4327 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 4328 nvlist_free(sd.sd_nvl); 4329 nvlist_free(props); 4330 if (ret != 0 && multiple_snaps) 4331 (void) fprintf(stderr, gettext("no snapshots were created\n")); 4332 return (ret != 0); 4333 4334 usage: 4335 nvlist_free(sd.sd_nvl); 4336 nvlist_free(props); 4337 usage(B_FALSE); 4338 return (-1); 4339 } 4340 4341 /* 4342 * Array of prefixes to exclude – 4343 * a linear search, even if executed for each dataset, 4344 * is plenty good enough. 4345 */ 4346 typedef struct zfs_send_exclude_arg { 4347 size_t count; 4348 const char **list; 4349 } zfs_send_exclude_arg_t; 4350 4351 static boolean_t 4352 zfs_do_send_exclude(zfs_handle_t *zhp, void *context) 4353 { 4354 zfs_send_exclude_arg_t *excludes = context; 4355 const char *name = zfs_get_name(zhp); 4356 4357 for (size_t i = 0; i < excludes->count; ++i) { 4358 size_t len = strlen(excludes->list[i]); 4359 if (strncmp(name, excludes->list[i], len) == 0 && 4360 memchr("/@", name[len], sizeof ("/@"))) 4361 return (B_FALSE); 4362 } 4363 4364 return (B_TRUE); 4365 } 4366 4367 /* 4368 * Send a backup stream to stdout. 4369 */ 4370 static int 4371 zfs_do_send(int argc, char **argv) 4372 { 4373 char *fromname = NULL; 4374 char *toname = NULL; 4375 char *resume_token = NULL; 4376 char *cp; 4377 zfs_handle_t *zhp; 4378 sendflags_t flags = { 0 }; 4379 int c, err; 4380 nvlist_t *dbgnv = NULL; 4381 char *redactbook = NULL; 4382 zfs_send_exclude_arg_t excludes = { 0 }; 4383 4384 struct option long_options[] = { 4385 {"replicate", no_argument, NULL, 'R'}, 4386 {"skip-missing", no_argument, NULL, 's'}, 4387 {"redact", required_argument, NULL, 'd'}, 4388 {"props", no_argument, NULL, 'p'}, 4389 {"parsable", no_argument, NULL, 'P'}, 4390 {"dedup", no_argument, NULL, 'D'}, 4391 {"proctitle", no_argument, NULL, 'V'}, 4392 {"verbose", no_argument, NULL, 'v'}, 4393 {"dryrun", no_argument, NULL, 'n'}, 4394 {"large-block", no_argument, NULL, 'L'}, 4395 {"embed", no_argument, NULL, 'e'}, 4396 {"resume", required_argument, NULL, 't'}, 4397 {"compressed", no_argument, NULL, 'c'}, 4398 {"raw", no_argument, NULL, 'w'}, 4399 {"backup", no_argument, NULL, 'b'}, 4400 {"holds", no_argument, NULL, 'h'}, 4401 {"saved", no_argument, NULL, 'S'}, 4402 {"exclude", required_argument, NULL, 'X'}, 4403 {0, 0, 0, 0} 4404 }; 4405 4406 /* check options */ 4407 while ((c = getopt_long(argc, argv, ":i:I:RsDpVvnPLeht:cwbd:SX:", 4408 long_options, NULL)) != -1) { 4409 switch (c) { 4410 case 'X': 4411 for (char *ds; (ds = strsep(&optarg, ",")) != NULL; ) { 4412 if (!zfs_name_valid(ds, ZFS_TYPE_DATASET) || 4413 strchr(ds, '/') == NULL) { 4414 (void) fprintf(stderr, gettext("-X %s: " 4415 "not a valid non-root dataset name" 4416 ".\n"), ds); 4417 usage(B_FALSE); 4418 } 4419 excludes.list = safe_realloc(excludes.list, 4420 sizeof (char *) * (excludes.count + 1)); 4421 excludes.list[excludes.count++] = ds; 4422 } 4423 break; 4424 case 'i': 4425 if (fromname) 4426 usage(B_FALSE); 4427 fromname = optarg; 4428 break; 4429 case 'I': 4430 if (fromname) 4431 usage(B_FALSE); 4432 fromname = optarg; 4433 flags.doall = B_TRUE; 4434 break; 4435 case 'R': 4436 flags.replicate = B_TRUE; 4437 break; 4438 case 's': 4439 flags.skipmissing = B_TRUE; 4440 break; 4441 case 'd': 4442 redactbook = optarg; 4443 break; 4444 case 'p': 4445 flags.props = B_TRUE; 4446 break; 4447 case 'b': 4448 flags.backup = B_TRUE; 4449 break; 4450 case 'h': 4451 flags.holds = B_TRUE; 4452 break; 4453 case 'P': 4454 flags.parsable = B_TRUE; 4455 break; 4456 case 'V': 4457 flags.progressastitle = B_TRUE; 4458 break; 4459 case 'v': 4460 flags.verbosity++; 4461 flags.progress = B_TRUE; 4462 break; 4463 case 'D': 4464 (void) fprintf(stderr, 4465 gettext("WARNING: deduplicated send is no " 4466 "longer supported. A regular,\n" 4467 "non-deduplicated stream will be generated.\n\n")); 4468 break; 4469 case 'n': 4470 flags.dryrun = B_TRUE; 4471 break; 4472 case 'L': 4473 flags.largeblock = B_TRUE; 4474 break; 4475 case 'e': 4476 flags.embed_data = B_TRUE; 4477 break; 4478 case 't': 4479 resume_token = optarg; 4480 break; 4481 case 'c': 4482 flags.compress = B_TRUE; 4483 break; 4484 case 'w': 4485 flags.raw = B_TRUE; 4486 flags.compress = B_TRUE; 4487 flags.embed_data = B_TRUE; 4488 flags.largeblock = B_TRUE; 4489 break; 4490 case 'S': 4491 flags.saved = B_TRUE; 4492 break; 4493 case ':': 4494 /* 4495 * If a parameter was not passed, optopt contains the 4496 * value that would normally lead us into the 4497 * appropriate case statement. If it's > 256, then this 4498 * must be a longopt and we should look at argv to get 4499 * the string. Otherwise it's just the character, so we 4500 * should use it directly. 4501 */ 4502 if (optopt <= UINT8_MAX) { 4503 (void) fprintf(stderr, 4504 gettext("missing argument for '%c' " 4505 "option\n"), optopt); 4506 } else { 4507 (void) fprintf(stderr, 4508 gettext("missing argument for '%s' " 4509 "option\n"), argv[optind - 1]); 4510 } 4511 free(excludes.list); 4512 usage(B_FALSE); 4513 break; 4514 case '?': 4515 default: 4516 /* 4517 * If an invalid flag was passed, optopt contains the 4518 * character if it was a short flag, or 0 if it was a 4519 * longopt. 4520 */ 4521 if (optopt != 0) { 4522 (void) fprintf(stderr, 4523 gettext("invalid option '%c'\n"), optopt); 4524 } else { 4525 (void) fprintf(stderr, 4526 gettext("invalid option '%s'\n"), 4527 argv[optind - 1]); 4528 4529 } 4530 free(excludes.list); 4531 usage(B_FALSE); 4532 } 4533 } 4534 4535 if (flags.parsable && flags.verbosity == 0) 4536 flags.verbosity = 1; 4537 4538 if (excludes.count > 0 && !flags.replicate) { 4539 free(excludes.list); 4540 (void) fprintf(stderr, gettext("Cannot specify " 4541 "dataset exclusion (-X) on a non-recursive " 4542 "send.\n")); 4543 return (1); 4544 } 4545 4546 argc -= optind; 4547 argv += optind; 4548 4549 if (resume_token != NULL) { 4550 if (fromname != NULL || flags.replicate || flags.props || 4551 flags.backup || flags.holds || 4552 flags.saved || redactbook != NULL) { 4553 free(excludes.list); 4554 (void) fprintf(stderr, 4555 gettext("invalid flags combined with -t\n")); 4556 usage(B_FALSE); 4557 } 4558 if (argc > 0) { 4559 free(excludes.list); 4560 (void) fprintf(stderr, gettext("too many arguments\n")); 4561 usage(B_FALSE); 4562 } 4563 } else { 4564 if (argc < 1) { 4565 free(excludes.list); 4566 (void) fprintf(stderr, 4567 gettext("missing snapshot argument\n")); 4568 usage(B_FALSE); 4569 } 4570 if (argc > 1) { 4571 free(excludes.list); 4572 (void) fprintf(stderr, gettext("too many arguments\n")); 4573 usage(B_FALSE); 4574 } 4575 } 4576 4577 if (flags.saved) { 4578 if (fromname != NULL || flags.replicate || flags.props || 4579 flags.doall || flags.backup || 4580 flags.holds || flags.largeblock || flags.embed_data || 4581 flags.compress || flags.raw || redactbook != NULL) { 4582 free(excludes.list); 4583 4584 (void) fprintf(stderr, gettext("incompatible flags " 4585 "combined with saved send flag\n")); 4586 usage(B_FALSE); 4587 } 4588 if (strchr(argv[0], '@') != NULL) { 4589 free(excludes.list); 4590 4591 (void) fprintf(stderr, gettext("saved send must " 4592 "specify the dataset with partially-received " 4593 "state\n")); 4594 usage(B_FALSE); 4595 } 4596 } 4597 4598 if (flags.raw && redactbook != NULL) { 4599 free(excludes.list); 4600 (void) fprintf(stderr, 4601 gettext("Error: raw sends may not be redacted.\n")); 4602 return (1); 4603 } 4604 4605 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 4606 free(excludes.list); 4607 (void) fprintf(stderr, 4608 gettext("Error: Stream can not be written to a terminal.\n" 4609 "You must redirect standard output.\n")); 4610 return (1); 4611 } 4612 4613 if (flags.saved) { 4614 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 4615 if (zhp == NULL) { 4616 free(excludes.list); 4617 return (1); 4618 } 4619 4620 err = zfs_send_saved(zhp, &flags, STDOUT_FILENO, 4621 resume_token); 4622 free(excludes.list); 4623 zfs_close(zhp); 4624 return (err != 0); 4625 } else if (resume_token != NULL) { 4626 free(excludes.list); 4627 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 4628 resume_token)); 4629 } 4630 4631 if (flags.skipmissing && !flags.replicate) { 4632 free(excludes.list); 4633 (void) fprintf(stderr, 4634 gettext("skip-missing flag can only be used in " 4635 "conjunction with replicate\n")); 4636 usage(B_FALSE); 4637 } 4638 4639 /* 4640 * For everything except -R and -I, use the new, cleaner code path. 4641 */ 4642 if (!(flags.replicate || flags.doall)) { 4643 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 4644 4645 if (fromname != NULL && (strchr(fromname, '#') == NULL && 4646 strchr(fromname, '@') == NULL)) { 4647 /* 4648 * Neither bookmark or snapshot was specified. Print a 4649 * warning, and assume snapshot. 4650 */ 4651 (void) fprintf(stderr, "Warning: incremental source " 4652 "didn't specify type, assuming snapshot. Use '@' " 4653 "or '#' prefix to avoid ambiguity.\n"); 4654 (void) snprintf(frombuf, sizeof (frombuf), "@%s", 4655 fromname); 4656 fromname = frombuf; 4657 } 4658 if (fromname != NULL && 4659 (fromname[0] == '#' || fromname[0] == '@')) { 4660 /* 4661 * Incremental source name begins with # or @. 4662 * Default to same fs as target. 4663 */ 4664 char tmpbuf[ZFS_MAX_DATASET_NAME_LEN]; 4665 (void) strlcpy(tmpbuf, fromname, sizeof (tmpbuf)); 4666 (void) strlcpy(frombuf, argv[0], sizeof (frombuf)); 4667 cp = strchr(frombuf, '@'); 4668 if (cp != NULL) 4669 *cp = '\0'; 4670 (void) strlcat(frombuf, tmpbuf, sizeof (frombuf)); 4671 fromname = frombuf; 4672 } 4673 4674 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 4675 if (zhp == NULL) { 4676 free(excludes.list); 4677 return (1); 4678 } 4679 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, &flags, 4680 redactbook); 4681 4682 free(excludes.list); 4683 zfs_close(zhp); 4684 return (err != 0); 4685 } 4686 4687 if (fromname != NULL && strchr(fromname, '#')) { 4688 (void) fprintf(stderr, 4689 gettext("Error: multiple snapshots cannot be " 4690 "sent from a bookmark.\n")); 4691 free(excludes.list); 4692 return (1); 4693 } 4694 4695 if (redactbook != NULL) { 4696 (void) fprintf(stderr, gettext("Error: multiple snapshots " 4697 "cannot be sent redacted.\n")); 4698 free(excludes.list); 4699 return (1); 4700 } 4701 4702 if ((cp = strchr(argv[0], '@')) == NULL) { 4703 (void) fprintf(stderr, gettext("Error: " 4704 "Unsupported flag with filesystem or bookmark.\n")); 4705 free(excludes.list); 4706 return (1); 4707 } 4708 *cp = '\0'; 4709 toname = cp + 1; 4710 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4711 if (zhp == NULL) { 4712 free(excludes.list); 4713 return (1); 4714 } 4715 4716 /* 4717 * If they specified the full path to the snapshot, chop off 4718 * everything except the short name of the snapshot, but special 4719 * case if they specify the origin. 4720 */ 4721 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 4722 char origin[ZFS_MAX_DATASET_NAME_LEN]; 4723 zprop_source_t src; 4724 4725 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 4726 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 4727 4728 if (strcmp(origin, fromname) == 0) { 4729 fromname = NULL; 4730 flags.fromorigin = B_TRUE; 4731 } else { 4732 *cp = '\0'; 4733 if (cp != fromname && strcmp(argv[0], fromname)) { 4734 zfs_close(zhp); 4735 free(excludes.list); 4736 (void) fprintf(stderr, 4737 gettext("incremental source must be " 4738 "in same filesystem\n")); 4739 usage(B_FALSE); 4740 } 4741 fromname = cp + 1; 4742 if (strchr(fromname, '@') || strchr(fromname, '/')) { 4743 zfs_close(zhp); 4744 free(excludes.list); 4745 (void) fprintf(stderr, 4746 gettext("invalid incremental source\n")); 4747 usage(B_FALSE); 4748 } 4749 } 4750 } 4751 4752 if (flags.replicate && fromname == NULL) 4753 flags.doall = B_TRUE; 4754 4755 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, 4756 excludes.count > 0 ? zfs_do_send_exclude : NULL, 4757 &excludes, flags.verbosity >= 3 ? &dbgnv : NULL); 4758 4759 if (flags.verbosity >= 3 && dbgnv != NULL) { 4760 /* 4761 * dump_nvlist prints to stdout, but that's been 4762 * redirected to a file. Make it print to stderr 4763 * instead. 4764 */ 4765 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 4766 dump_nvlist(dbgnv, 0); 4767 nvlist_free(dbgnv); 4768 } 4769 4770 zfs_close(zhp); 4771 free(excludes.list); 4772 return (err != 0); 4773 } 4774 4775 /* 4776 * Restore a backup stream from stdin. 4777 */ 4778 static int 4779 zfs_do_receive(int argc, char **argv) 4780 { 4781 int c, err = 0; 4782 recvflags_t flags = { 0 }; 4783 boolean_t abort_resumable = B_FALSE; 4784 nvlist_t *props; 4785 4786 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4787 nomem(); 4788 4789 /* check options */ 4790 while ((c = getopt(argc, argv, ":o:x:dehMnuvFsAc")) != -1) { 4791 switch (c) { 4792 case 'o': 4793 if (!parseprop(props, optarg)) { 4794 nvlist_free(props); 4795 usage(B_FALSE); 4796 } 4797 break; 4798 case 'x': 4799 if (!parsepropname(props, optarg)) { 4800 nvlist_free(props); 4801 usage(B_FALSE); 4802 } 4803 break; 4804 case 'd': 4805 if (flags.istail) { 4806 (void) fprintf(stderr, gettext("invalid option " 4807 "combination: -d and -e are mutually " 4808 "exclusive\n")); 4809 usage(B_FALSE); 4810 } 4811 flags.isprefix = B_TRUE; 4812 break; 4813 case 'e': 4814 if (flags.isprefix) { 4815 (void) fprintf(stderr, gettext("invalid option " 4816 "combination: -d and -e are mutually " 4817 "exclusive\n")); 4818 usage(B_FALSE); 4819 } 4820 flags.istail = B_TRUE; 4821 break; 4822 case 'h': 4823 flags.skipholds = B_TRUE; 4824 break; 4825 case 'M': 4826 flags.forceunmount = B_TRUE; 4827 break; 4828 case 'n': 4829 flags.dryrun = B_TRUE; 4830 break; 4831 case 'u': 4832 flags.nomount = B_TRUE; 4833 break; 4834 case 'v': 4835 flags.verbose = B_TRUE; 4836 break; 4837 case 's': 4838 flags.resumable = B_TRUE; 4839 break; 4840 case 'F': 4841 flags.force = B_TRUE; 4842 break; 4843 case 'A': 4844 abort_resumable = B_TRUE; 4845 break; 4846 case 'c': 4847 flags.heal = B_TRUE; 4848 break; 4849 case ':': 4850 (void) fprintf(stderr, gettext("missing argument for " 4851 "'%c' option\n"), optopt); 4852 usage(B_FALSE); 4853 break; 4854 case '?': 4855 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4856 optopt); 4857 usage(B_FALSE); 4858 } 4859 } 4860 4861 argc -= optind; 4862 argv += optind; 4863 4864 /* zfs recv -e (use "tail" name) implies -d (remove dataset "head") */ 4865 if (flags.istail) 4866 flags.isprefix = B_TRUE; 4867 4868 /* check number of arguments */ 4869 if (argc < 1) { 4870 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4871 usage(B_FALSE); 4872 } 4873 if (argc > 1) { 4874 (void) fprintf(stderr, gettext("too many arguments\n")); 4875 usage(B_FALSE); 4876 } 4877 4878 if (abort_resumable) { 4879 if (flags.isprefix || flags.istail || flags.dryrun || 4880 flags.resumable || flags.nomount) { 4881 (void) fprintf(stderr, gettext("invalid option\n")); 4882 usage(B_FALSE); 4883 } 4884 4885 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4886 (void) snprintf(namebuf, sizeof (namebuf), 4887 "%s/%%recv", argv[0]); 4888 4889 if (zfs_dataset_exists(g_zfs, namebuf, 4890 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4891 zfs_handle_t *zhp = zfs_open(g_zfs, 4892 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4893 if (zhp == NULL) { 4894 nvlist_free(props); 4895 return (1); 4896 } 4897 err = zfs_destroy(zhp, B_FALSE); 4898 zfs_close(zhp); 4899 } else { 4900 zfs_handle_t *zhp = zfs_open(g_zfs, 4901 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4902 if (zhp == NULL) 4903 usage(B_FALSE); 4904 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4905 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4906 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4907 (void) fprintf(stderr, 4908 gettext("'%s' does not have any " 4909 "resumable receive state to abort\n"), 4910 argv[0]); 4911 nvlist_free(props); 4912 zfs_close(zhp); 4913 return (1); 4914 } 4915 err = zfs_destroy(zhp, B_FALSE); 4916 zfs_close(zhp); 4917 } 4918 nvlist_free(props); 4919 return (err != 0); 4920 } 4921 4922 if (isatty(STDIN_FILENO)) { 4923 (void) fprintf(stderr, 4924 gettext("Error: Backup stream can not be read " 4925 "from a terminal.\n" 4926 "You must redirect standard input.\n")); 4927 nvlist_free(props); 4928 return (1); 4929 } 4930 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4931 nvlist_free(props); 4932 4933 return (err != 0); 4934 } 4935 4936 /* 4937 * allow/unallow stuff 4938 */ 4939 /* copied from zfs/sys/dsl_deleg.h */ 4940 #define ZFS_DELEG_PERM_CREATE "create" 4941 #define ZFS_DELEG_PERM_DESTROY "destroy" 4942 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4943 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4944 #define ZFS_DELEG_PERM_CLONE "clone" 4945 #define ZFS_DELEG_PERM_PROMOTE "promote" 4946 #define ZFS_DELEG_PERM_RENAME "rename" 4947 #define ZFS_DELEG_PERM_MOUNT "mount" 4948 #define ZFS_DELEG_PERM_SHARE "share" 4949 #define ZFS_DELEG_PERM_SEND "send" 4950 #define ZFS_DELEG_PERM_RECEIVE "receive" 4951 #define ZFS_DELEG_PERM_ALLOW "allow" 4952 #define ZFS_DELEG_PERM_USERPROP "userprop" 4953 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4954 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4955 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4956 #define ZFS_DELEG_PERM_USERUSED "userused" 4957 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4958 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota" 4959 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota" 4960 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused" 4961 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused" 4962 4963 #define ZFS_DELEG_PERM_HOLD "hold" 4964 #define ZFS_DELEG_PERM_RELEASE "release" 4965 #define ZFS_DELEG_PERM_DIFF "diff" 4966 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4967 #define ZFS_DELEG_PERM_LOAD_KEY "load-key" 4968 #define ZFS_DELEG_PERM_CHANGE_KEY "change-key" 4969 4970 #define ZFS_DELEG_PERM_PROJECTUSED "projectused" 4971 #define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota" 4972 #define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused" 4973 #define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota" 4974 4975 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4976 4977 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4978 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4979 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4980 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4981 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4982 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4983 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4984 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4985 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4986 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4987 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4988 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4989 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4990 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4991 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4992 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4993 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4994 { ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY }, 4995 { ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY }, 4996 4997 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4998 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4999 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 5000 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 5001 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 5002 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA }, 5003 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED }, 5004 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA }, 5005 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED }, 5006 { ZFS_DELEG_PERM_PROJECTUSED, ZFS_DELEG_NOTE_PROJECTUSED }, 5007 { ZFS_DELEG_PERM_PROJECTQUOTA, ZFS_DELEG_NOTE_PROJECTQUOTA }, 5008 { ZFS_DELEG_PERM_PROJECTOBJUSED, ZFS_DELEG_NOTE_PROJECTOBJUSED }, 5009 { ZFS_DELEG_PERM_PROJECTOBJQUOTA, ZFS_DELEG_NOTE_PROJECTOBJQUOTA }, 5010 { NULL, ZFS_DELEG_NOTE_NONE } 5011 }; 5012 5013 /* permission structure */ 5014 typedef struct deleg_perm { 5015 zfs_deleg_who_type_t dp_who_type; 5016 const char *dp_name; 5017 boolean_t dp_local; 5018 boolean_t dp_descend; 5019 } deleg_perm_t; 5020 5021 /* */ 5022 typedef struct deleg_perm_node { 5023 deleg_perm_t dpn_perm; 5024 5025 uu_avl_node_t dpn_avl_node; 5026 } deleg_perm_node_t; 5027 5028 typedef struct fs_perm fs_perm_t; 5029 5030 /* permissions set */ 5031 typedef struct who_perm { 5032 zfs_deleg_who_type_t who_type; 5033 const char *who_name; /* id */ 5034 char who_ug_name[256]; /* user/group name */ 5035 fs_perm_t *who_fsperm; /* uplink */ 5036 5037 uu_avl_t *who_deleg_perm_avl; /* permissions */ 5038 } who_perm_t; 5039 5040 /* */ 5041 typedef struct who_perm_node { 5042 who_perm_t who_perm; 5043 uu_avl_node_t who_avl_node; 5044 } who_perm_node_t; 5045 5046 typedef struct fs_perm_set fs_perm_set_t; 5047 /* fs permissions */ 5048 struct fs_perm { 5049 const char *fsp_name; 5050 5051 uu_avl_t *fsp_sc_avl; /* sets,create */ 5052 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 5053 5054 fs_perm_set_t *fsp_set; /* uplink */ 5055 }; 5056 5057 /* */ 5058 typedef struct fs_perm_node { 5059 fs_perm_t fspn_fsperm; 5060 uu_avl_t *fspn_avl; 5061 5062 uu_list_node_t fspn_list_node; 5063 } fs_perm_node_t; 5064 5065 /* top level structure */ 5066 struct fs_perm_set { 5067 uu_list_pool_t *fsps_list_pool; 5068 uu_list_t *fsps_list; /* list of fs_perms */ 5069 5070 uu_avl_pool_t *fsps_named_set_avl_pool; 5071 uu_avl_pool_t *fsps_who_perm_avl_pool; 5072 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 5073 }; 5074 5075 static inline const char * 5076 deleg_perm_type(zfs_deleg_note_t note) 5077 { 5078 /* subcommands */ 5079 switch (note) { 5080 /* SUBCOMMANDS */ 5081 /* OTHER */ 5082 case ZFS_DELEG_NOTE_GROUPQUOTA: 5083 case ZFS_DELEG_NOTE_GROUPUSED: 5084 case ZFS_DELEG_NOTE_USERPROP: 5085 case ZFS_DELEG_NOTE_USERQUOTA: 5086 case ZFS_DELEG_NOTE_USERUSED: 5087 case ZFS_DELEG_NOTE_USEROBJQUOTA: 5088 case ZFS_DELEG_NOTE_USEROBJUSED: 5089 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 5090 case ZFS_DELEG_NOTE_GROUPOBJUSED: 5091 case ZFS_DELEG_NOTE_PROJECTUSED: 5092 case ZFS_DELEG_NOTE_PROJECTQUOTA: 5093 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 5094 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 5095 /* other */ 5096 return (gettext("other")); 5097 default: 5098 return (gettext("subcommand")); 5099 } 5100 } 5101 5102 static int 5103 who_type2weight(zfs_deleg_who_type_t who_type) 5104 { 5105 int res; 5106 switch (who_type) { 5107 case ZFS_DELEG_NAMED_SET_SETS: 5108 case ZFS_DELEG_NAMED_SET: 5109 res = 0; 5110 break; 5111 case ZFS_DELEG_CREATE_SETS: 5112 case ZFS_DELEG_CREATE: 5113 res = 1; 5114 break; 5115 case ZFS_DELEG_USER_SETS: 5116 case ZFS_DELEG_USER: 5117 res = 2; 5118 break; 5119 case ZFS_DELEG_GROUP_SETS: 5120 case ZFS_DELEG_GROUP: 5121 res = 3; 5122 break; 5123 case ZFS_DELEG_EVERYONE_SETS: 5124 case ZFS_DELEG_EVERYONE: 5125 res = 4; 5126 break; 5127 default: 5128 res = -1; 5129 } 5130 5131 return (res); 5132 } 5133 5134 static int 5135 who_perm_compare(const void *larg, const void *rarg, void *unused) 5136 { 5137 (void) unused; 5138 const who_perm_node_t *l = larg; 5139 const who_perm_node_t *r = rarg; 5140 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 5141 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 5142 int lweight = who_type2weight(ltype); 5143 int rweight = who_type2weight(rtype); 5144 int res = lweight - rweight; 5145 if (res == 0) 5146 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 5147 ZFS_MAX_DELEG_NAME-1); 5148 5149 if (res == 0) 5150 return (0); 5151 if (res > 0) 5152 return (1); 5153 else 5154 return (-1); 5155 } 5156 5157 static int 5158 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 5159 { 5160 (void) unused; 5161 const deleg_perm_node_t *l = larg; 5162 const deleg_perm_node_t *r = rarg; 5163 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 5164 ZFS_MAX_DELEG_NAME-1); 5165 5166 if (res == 0) 5167 return (0); 5168 5169 if (res > 0) 5170 return (1); 5171 else 5172 return (-1); 5173 } 5174 5175 static inline void 5176 fs_perm_set_init(fs_perm_set_t *fspset) 5177 { 5178 memset(fspset, 0, sizeof (fs_perm_set_t)); 5179 5180 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 5181 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 5182 NULL, UU_DEFAULT)) == NULL) 5183 nomem(); 5184 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 5185 UU_DEFAULT)) == NULL) 5186 nomem(); 5187 5188 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 5189 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 5190 who_perm_node_t, who_avl_node), who_perm_compare, 5191 UU_DEFAULT)) == NULL) 5192 nomem(); 5193 5194 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 5195 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 5196 who_perm_node_t, who_avl_node), who_perm_compare, 5197 UU_DEFAULT)) == NULL) 5198 nomem(); 5199 5200 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 5201 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 5202 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 5203 == NULL) 5204 nomem(); 5205 } 5206 5207 static inline void fs_perm_fini(fs_perm_t *); 5208 static inline void who_perm_fini(who_perm_t *); 5209 5210 static inline void 5211 fs_perm_set_fini(fs_perm_set_t *fspset) 5212 { 5213 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 5214 5215 while (node != NULL) { 5216 fs_perm_node_t *next_node = 5217 uu_list_next(fspset->fsps_list, node); 5218 fs_perm_t *fsperm = &node->fspn_fsperm; 5219 fs_perm_fini(fsperm); 5220 uu_list_remove(fspset->fsps_list, node); 5221 free(node); 5222 node = next_node; 5223 } 5224 5225 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 5226 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 5227 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 5228 } 5229 5230 static inline void 5231 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 5232 const char *name) 5233 { 5234 deleg_perm->dp_who_type = type; 5235 deleg_perm->dp_name = name; 5236 } 5237 5238 static inline void 5239 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 5240 zfs_deleg_who_type_t type, const char *name) 5241 { 5242 uu_avl_pool_t *pool; 5243 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 5244 5245 memset(who_perm, 0, sizeof (who_perm_t)); 5246 5247 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 5248 UU_DEFAULT)) == NULL) 5249 nomem(); 5250 5251 who_perm->who_type = type; 5252 who_perm->who_name = name; 5253 who_perm->who_fsperm = fsperm; 5254 } 5255 5256 static inline void 5257 who_perm_fini(who_perm_t *who_perm) 5258 { 5259 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 5260 5261 while (node != NULL) { 5262 deleg_perm_node_t *next_node = 5263 uu_avl_next(who_perm->who_deleg_perm_avl, node); 5264 5265 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 5266 free(node); 5267 node = next_node; 5268 } 5269 5270 uu_avl_destroy(who_perm->who_deleg_perm_avl); 5271 } 5272 5273 static inline void 5274 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 5275 { 5276 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 5277 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 5278 5279 memset(fsperm, 0, sizeof (fs_perm_t)); 5280 5281 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 5282 == NULL) 5283 nomem(); 5284 5285 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 5286 == NULL) 5287 nomem(); 5288 5289 fsperm->fsp_set = fspset; 5290 fsperm->fsp_name = fsname; 5291 } 5292 5293 static inline void 5294 fs_perm_fini(fs_perm_t *fsperm) 5295 { 5296 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 5297 while (node != NULL) { 5298 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 5299 node); 5300 who_perm_t *who_perm = &node->who_perm; 5301 who_perm_fini(who_perm); 5302 uu_avl_remove(fsperm->fsp_sc_avl, node); 5303 free(node); 5304 node = next_node; 5305 } 5306 5307 node = uu_avl_first(fsperm->fsp_uge_avl); 5308 while (node != NULL) { 5309 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 5310 node); 5311 who_perm_t *who_perm = &node->who_perm; 5312 who_perm_fini(who_perm); 5313 uu_avl_remove(fsperm->fsp_uge_avl, node); 5314 free(node); 5315 node = next_node; 5316 } 5317 5318 uu_avl_destroy(fsperm->fsp_sc_avl); 5319 uu_avl_destroy(fsperm->fsp_uge_avl); 5320 } 5321 5322 static void 5323 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 5324 zfs_deleg_who_type_t who_type, const char *name, char locality) 5325 { 5326 uu_avl_index_t idx = 0; 5327 5328 deleg_perm_node_t *found_node = NULL; 5329 deleg_perm_t *deleg_perm = &node->dpn_perm; 5330 5331 deleg_perm_init(deleg_perm, who_type, name); 5332 5333 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 5334 == NULL) 5335 uu_avl_insert(avl, node, idx); 5336 else { 5337 node = found_node; 5338 deleg_perm = &node->dpn_perm; 5339 } 5340 5341 5342 switch (locality) { 5343 case ZFS_DELEG_LOCAL: 5344 deleg_perm->dp_local = B_TRUE; 5345 break; 5346 case ZFS_DELEG_DESCENDENT: 5347 deleg_perm->dp_descend = B_TRUE; 5348 break; 5349 case ZFS_DELEG_NA: 5350 break; 5351 default: 5352 assert(B_FALSE); /* invalid locality */ 5353 } 5354 } 5355 5356 static inline int 5357 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 5358 { 5359 nvpair_t *nvp = NULL; 5360 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 5361 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 5362 zfs_deleg_who_type_t who_type = who_perm->who_type; 5363 5364 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5365 const char *name = nvpair_name(nvp); 5366 data_type_t type = nvpair_type(nvp); 5367 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 5368 deleg_perm_node_t *node = 5369 safe_malloc(sizeof (deleg_perm_node_t)); 5370 5371 VERIFY(type == DATA_TYPE_BOOLEAN); 5372 5373 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 5374 set_deleg_perm_node(avl, node, who_type, name, locality); 5375 } 5376 5377 return (0); 5378 } 5379 5380 static inline int 5381 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 5382 { 5383 nvpair_t *nvp = NULL; 5384 fs_perm_set_t *fspset = fsperm->fsp_set; 5385 5386 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5387 nvlist_t *nvl2 = NULL; 5388 const char *name = nvpair_name(nvp); 5389 uu_avl_t *avl = NULL; 5390 uu_avl_pool_t *avl_pool = NULL; 5391 zfs_deleg_who_type_t perm_type = name[0]; 5392 char perm_locality = name[1]; 5393 const char *perm_name = name + 3; 5394 who_perm_t *who_perm = NULL; 5395 5396 assert('$' == name[2]); 5397 5398 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 5399 return (-1); 5400 5401 switch (perm_type) { 5402 case ZFS_DELEG_CREATE: 5403 case ZFS_DELEG_CREATE_SETS: 5404 case ZFS_DELEG_NAMED_SET: 5405 case ZFS_DELEG_NAMED_SET_SETS: 5406 avl_pool = fspset->fsps_named_set_avl_pool; 5407 avl = fsperm->fsp_sc_avl; 5408 break; 5409 case ZFS_DELEG_USER: 5410 case ZFS_DELEG_USER_SETS: 5411 case ZFS_DELEG_GROUP: 5412 case ZFS_DELEG_GROUP_SETS: 5413 case ZFS_DELEG_EVERYONE: 5414 case ZFS_DELEG_EVERYONE_SETS: 5415 avl_pool = fspset->fsps_who_perm_avl_pool; 5416 avl = fsperm->fsp_uge_avl; 5417 break; 5418 5419 default: 5420 assert(!"unhandled zfs_deleg_who_type_t"); 5421 } 5422 5423 who_perm_node_t *found_node = NULL; 5424 who_perm_node_t *node = safe_malloc( 5425 sizeof (who_perm_node_t)); 5426 who_perm = &node->who_perm; 5427 uu_avl_index_t idx = 0; 5428 5429 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 5430 who_perm_init(who_perm, fsperm, perm_type, perm_name); 5431 5432 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 5433 == NULL) { 5434 if (avl == fsperm->fsp_uge_avl) { 5435 uid_t rid = 0; 5436 struct passwd *p = NULL; 5437 struct group *g = NULL; 5438 const char *nice_name = NULL; 5439 5440 switch (perm_type) { 5441 case ZFS_DELEG_USER_SETS: 5442 case ZFS_DELEG_USER: 5443 rid = atoi(perm_name); 5444 p = getpwuid(rid); 5445 if (p) 5446 nice_name = p->pw_name; 5447 break; 5448 case ZFS_DELEG_GROUP_SETS: 5449 case ZFS_DELEG_GROUP: 5450 rid = atoi(perm_name); 5451 g = getgrgid(rid); 5452 if (g) 5453 nice_name = g->gr_name; 5454 break; 5455 5456 default: 5457 break; 5458 } 5459 5460 if (nice_name != NULL) { 5461 (void) strlcpy( 5462 node->who_perm.who_ug_name, 5463 nice_name, 256); 5464 } else { 5465 /* User or group unknown */ 5466 (void) snprintf( 5467 node->who_perm.who_ug_name, 5468 sizeof (node->who_perm.who_ug_name), 5469 "(unknown: %d)", rid); 5470 } 5471 } 5472 5473 uu_avl_insert(avl, node, idx); 5474 } else { 5475 node = found_node; 5476 who_perm = &node->who_perm; 5477 } 5478 5479 assert(who_perm != NULL); 5480 (void) parse_who_perm(who_perm, nvl2, perm_locality); 5481 } 5482 5483 return (0); 5484 } 5485 5486 static inline int 5487 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 5488 { 5489 nvpair_t *nvp = NULL; 5490 uu_avl_index_t idx = 0; 5491 5492 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5493 nvlist_t *nvl2 = NULL; 5494 const char *fsname = nvpair_name(nvp); 5495 data_type_t type = nvpair_type(nvp); 5496 fs_perm_t *fsperm = NULL; 5497 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 5498 5499 fsperm = &node->fspn_fsperm; 5500 5501 VERIFY(DATA_TYPE_NVLIST == type); 5502 5503 uu_list_node_init(node, &node->fspn_list_node, 5504 fspset->fsps_list_pool); 5505 5506 idx = uu_list_numnodes(fspset->fsps_list); 5507 fs_perm_init(fsperm, fspset, fsname); 5508 5509 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 5510 return (-1); 5511 5512 (void) parse_fs_perm(fsperm, nvl2); 5513 5514 uu_list_insert(fspset->fsps_list, node, idx); 5515 } 5516 5517 return (0); 5518 } 5519 5520 static inline const char * 5521 deleg_perm_comment(zfs_deleg_note_t note) 5522 { 5523 const char *str = ""; 5524 5525 /* subcommands */ 5526 switch (note) { 5527 /* SUBCOMMANDS */ 5528 case ZFS_DELEG_NOTE_ALLOW: 5529 str = gettext("Must also have the permission that is being" 5530 "\n\t\t\t\tallowed"); 5531 break; 5532 case ZFS_DELEG_NOTE_CLONE: 5533 str = gettext("Must also have the 'create' ability and 'mount'" 5534 "\n\t\t\t\tability in the origin file system"); 5535 break; 5536 case ZFS_DELEG_NOTE_CREATE: 5537 str = gettext("Must also have the 'mount' ability"); 5538 break; 5539 case ZFS_DELEG_NOTE_DESTROY: 5540 str = gettext("Must also have the 'mount' ability"); 5541 break; 5542 case ZFS_DELEG_NOTE_DIFF: 5543 str = gettext("Allows lookup of paths within a dataset;" 5544 "\n\t\t\t\tgiven an object number. Ordinary users need this" 5545 "\n\t\t\t\tin order to use zfs diff"); 5546 break; 5547 case ZFS_DELEG_NOTE_HOLD: 5548 str = gettext("Allows adding a user hold to a snapshot"); 5549 break; 5550 case ZFS_DELEG_NOTE_MOUNT: 5551 str = gettext("Allows mount/umount of ZFS datasets"); 5552 break; 5553 case ZFS_DELEG_NOTE_PROMOTE: 5554 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 5555 " 'promote' ability in the origin file system"); 5556 break; 5557 case ZFS_DELEG_NOTE_RECEIVE: 5558 str = gettext("Must also have the 'mount' and 'create'" 5559 " ability"); 5560 break; 5561 case ZFS_DELEG_NOTE_RELEASE: 5562 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 5563 "might destroy the snapshot"); 5564 break; 5565 case ZFS_DELEG_NOTE_RENAME: 5566 str = gettext("Must also have the 'mount' and 'create'" 5567 "\n\t\t\t\tability in the new parent"); 5568 break; 5569 case ZFS_DELEG_NOTE_ROLLBACK: 5570 str = gettext(""); 5571 break; 5572 case ZFS_DELEG_NOTE_SEND: 5573 str = gettext(""); 5574 break; 5575 case ZFS_DELEG_NOTE_SHARE: 5576 str = gettext("Allows sharing file systems over NFS or SMB" 5577 "\n\t\t\t\tprotocols"); 5578 break; 5579 case ZFS_DELEG_NOTE_SNAPSHOT: 5580 str = gettext(""); 5581 break; 5582 case ZFS_DELEG_NOTE_LOAD_KEY: 5583 str = gettext("Allows loading or unloading an encryption key"); 5584 break; 5585 case ZFS_DELEG_NOTE_CHANGE_KEY: 5586 str = gettext("Allows changing or adding an encryption key"); 5587 break; 5588 /* 5589 * case ZFS_DELEG_NOTE_VSCAN: 5590 * str = gettext(""); 5591 * break; 5592 */ 5593 /* OTHER */ 5594 case ZFS_DELEG_NOTE_GROUPQUOTA: 5595 str = gettext("Allows accessing any groupquota@... property"); 5596 break; 5597 case ZFS_DELEG_NOTE_GROUPUSED: 5598 str = gettext("Allows reading any groupused@... property"); 5599 break; 5600 case ZFS_DELEG_NOTE_USERPROP: 5601 str = gettext("Allows changing any user property"); 5602 break; 5603 case ZFS_DELEG_NOTE_USERQUOTA: 5604 str = gettext("Allows accessing any userquota@... property"); 5605 break; 5606 case ZFS_DELEG_NOTE_USERUSED: 5607 str = gettext("Allows reading any userused@... property"); 5608 break; 5609 case ZFS_DELEG_NOTE_USEROBJQUOTA: 5610 str = gettext("Allows accessing any userobjquota@... property"); 5611 break; 5612 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 5613 str = gettext("Allows accessing any \n\t\t\t\t" 5614 "groupobjquota@... property"); 5615 break; 5616 case ZFS_DELEG_NOTE_GROUPOBJUSED: 5617 str = gettext("Allows reading any groupobjused@... property"); 5618 break; 5619 case ZFS_DELEG_NOTE_USEROBJUSED: 5620 str = gettext("Allows reading any userobjused@... property"); 5621 break; 5622 case ZFS_DELEG_NOTE_PROJECTQUOTA: 5623 str = gettext("Allows accessing any projectquota@... property"); 5624 break; 5625 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 5626 str = gettext("Allows accessing any \n\t\t\t\t" 5627 "projectobjquota@... property"); 5628 break; 5629 case ZFS_DELEG_NOTE_PROJECTUSED: 5630 str = gettext("Allows reading any projectused@... property"); 5631 break; 5632 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 5633 str = gettext("Allows accessing any \n\t\t\t\t" 5634 "projectobjused@... property"); 5635 break; 5636 /* other */ 5637 default: 5638 str = ""; 5639 } 5640 5641 return (str); 5642 } 5643 5644 struct allow_opts { 5645 boolean_t local; 5646 boolean_t descend; 5647 boolean_t user; 5648 boolean_t group; 5649 boolean_t everyone; 5650 boolean_t create; 5651 boolean_t set; 5652 boolean_t recursive; /* unallow only */ 5653 boolean_t prt_usage; 5654 5655 boolean_t prt_perms; 5656 char *who; 5657 char *perms; 5658 const char *dataset; 5659 }; 5660 5661 static inline int 5662 prop_cmp(const void *a, const void *b) 5663 { 5664 const char *str1 = *(const char **)a; 5665 const char *str2 = *(const char **)b; 5666 return (strcmp(str1, str2)); 5667 } 5668 5669 static void 5670 allow_usage(boolean_t un, boolean_t requested, const char *msg) 5671 { 5672 const char *opt_desc[] = { 5673 "-h", gettext("show this help message and exit"), 5674 "-l", gettext("set permission locally"), 5675 "-d", gettext("set permission for descents"), 5676 "-u", gettext("set permission for user"), 5677 "-g", gettext("set permission for group"), 5678 "-e", gettext("set permission for everyone"), 5679 "-c", gettext("set create time permission"), 5680 "-s", gettext("define permission set"), 5681 /* unallow only */ 5682 "-r", gettext("remove permissions recursively"), 5683 }; 5684 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 5685 size_t allow_size = unallow_size - 2; 5686 const char *props[ZFS_NUM_PROPS]; 5687 int i; 5688 size_t count = 0; 5689 FILE *fp = requested ? stdout : stderr; 5690 zprop_desc_t *pdtbl = zfs_prop_get_table(); 5691 const char *fmt = gettext("%-16s %-14s\t%s\n"); 5692 5693 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 5694 HELP_ALLOW)); 5695 (void) fprintf(fp, gettext("Options:\n")); 5696 for (i = 0; i < (un ? unallow_size : allow_size); i += 2) { 5697 const char *opt = opt_desc[i]; 5698 const char *optdsc = opt_desc[i + 1]; 5699 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 5700 } 5701 5702 (void) fprintf(fp, gettext("\nThe following permissions are " 5703 "supported:\n\n")); 5704 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 5705 gettext("NOTES")); 5706 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 5707 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 5708 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 5709 const char *perm_type = deleg_perm_type(perm_note); 5710 const char *perm_comment = deleg_perm_comment(perm_note); 5711 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 5712 } 5713 5714 for (i = 0; i < ZFS_NUM_PROPS; i++) { 5715 zprop_desc_t *pd = &pdtbl[i]; 5716 if (pd->pd_visible != B_TRUE) 5717 continue; 5718 5719 if (pd->pd_attr == PROP_READONLY) 5720 continue; 5721 5722 props[count++] = pd->pd_name; 5723 } 5724 props[count] = NULL; 5725 5726 qsort(props, count, sizeof (char *), prop_cmp); 5727 5728 for (i = 0; i < count; i++) 5729 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 5730 5731 if (msg != NULL) 5732 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 5733 5734 exit(requested ? 0 : 2); 5735 } 5736 5737 static inline const char * 5738 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 5739 char **permsp) 5740 { 5741 if (un && argc == expected_argc - 1) 5742 *permsp = NULL; 5743 else if (argc == expected_argc) 5744 *permsp = argv[argc - 2]; 5745 else 5746 allow_usage(un, B_FALSE, 5747 gettext("wrong number of parameters\n")); 5748 5749 return (argv[argc - 1]); 5750 } 5751 5752 static void 5753 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 5754 { 5755 int uge_sum = opts->user + opts->group + opts->everyone; 5756 int csuge_sum = opts->create + opts->set + uge_sum; 5757 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 5758 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 5759 5760 if (uge_sum > 1) 5761 allow_usage(un, B_FALSE, 5762 gettext("-u, -g, and -e are mutually exclusive\n")); 5763 5764 if (opts->prt_usage) { 5765 if (argc == 0 && all_sum == 0) 5766 allow_usage(un, B_TRUE, NULL); 5767 else 5768 usage(B_FALSE); 5769 } 5770 5771 if (opts->set) { 5772 if (csuge_sum > 1) 5773 allow_usage(un, B_FALSE, 5774 gettext("invalid options combined with -s\n")); 5775 5776 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5777 if (argv[0][0] != '@') 5778 allow_usage(un, B_FALSE, 5779 gettext("invalid set name: missing '@' prefix\n")); 5780 opts->who = argv[0]; 5781 } else if (opts->create) { 5782 if (ldcsuge_sum > 1) 5783 allow_usage(un, B_FALSE, 5784 gettext("invalid options combined with -c\n")); 5785 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5786 } else if (opts->everyone) { 5787 if (csuge_sum > 1) 5788 allow_usage(un, B_FALSE, 5789 gettext("invalid options combined with -e\n")); 5790 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5791 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 5792 == 0) { 5793 opts->everyone = B_TRUE; 5794 argc--; 5795 argv++; 5796 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5797 } else if (argc == 1 && !un) { 5798 opts->prt_perms = B_TRUE; 5799 opts->dataset = argv[argc-1]; 5800 } else { 5801 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5802 opts->who = argv[0]; 5803 } 5804 5805 if (!opts->local && !opts->descend) { 5806 opts->local = B_TRUE; 5807 opts->descend = B_TRUE; 5808 } 5809 } 5810 5811 static void 5812 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 5813 const char *who, char *perms, nvlist_t *top_nvl) 5814 { 5815 int i; 5816 char ld[2] = { '\0', '\0' }; 5817 char who_buf[MAXNAMELEN + 32]; 5818 char base_type = '\0'; 5819 char set_type = '\0'; 5820 nvlist_t *base_nvl = NULL; 5821 nvlist_t *set_nvl = NULL; 5822 nvlist_t *nvl; 5823 5824 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 5825 nomem(); 5826 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 5827 nomem(); 5828 5829 switch (type) { 5830 case ZFS_DELEG_NAMED_SET_SETS: 5831 case ZFS_DELEG_NAMED_SET: 5832 set_type = ZFS_DELEG_NAMED_SET_SETS; 5833 base_type = ZFS_DELEG_NAMED_SET; 5834 ld[0] = ZFS_DELEG_NA; 5835 break; 5836 case ZFS_DELEG_CREATE_SETS: 5837 case ZFS_DELEG_CREATE: 5838 set_type = ZFS_DELEG_CREATE_SETS; 5839 base_type = ZFS_DELEG_CREATE; 5840 ld[0] = ZFS_DELEG_NA; 5841 break; 5842 case ZFS_DELEG_USER_SETS: 5843 case ZFS_DELEG_USER: 5844 set_type = ZFS_DELEG_USER_SETS; 5845 base_type = ZFS_DELEG_USER; 5846 if (local) 5847 ld[0] = ZFS_DELEG_LOCAL; 5848 if (descend) 5849 ld[1] = ZFS_DELEG_DESCENDENT; 5850 break; 5851 case ZFS_DELEG_GROUP_SETS: 5852 case ZFS_DELEG_GROUP: 5853 set_type = ZFS_DELEG_GROUP_SETS; 5854 base_type = ZFS_DELEG_GROUP; 5855 if (local) 5856 ld[0] = ZFS_DELEG_LOCAL; 5857 if (descend) 5858 ld[1] = ZFS_DELEG_DESCENDENT; 5859 break; 5860 case ZFS_DELEG_EVERYONE_SETS: 5861 case ZFS_DELEG_EVERYONE: 5862 set_type = ZFS_DELEG_EVERYONE_SETS; 5863 base_type = ZFS_DELEG_EVERYONE; 5864 if (local) 5865 ld[0] = ZFS_DELEG_LOCAL; 5866 if (descend) 5867 ld[1] = ZFS_DELEG_DESCENDENT; 5868 break; 5869 5870 default: 5871 assert(set_type != '\0' && base_type != '\0'); 5872 } 5873 5874 if (perms != NULL) { 5875 char *curr = perms; 5876 char *end = curr + strlen(perms); 5877 5878 while (curr < end) { 5879 char *delim = strchr(curr, ','); 5880 if (delim == NULL) 5881 delim = end; 5882 else 5883 *delim = '\0'; 5884 5885 if (curr[0] == '@') 5886 nvl = set_nvl; 5887 else 5888 nvl = base_nvl; 5889 5890 (void) nvlist_add_boolean(nvl, curr); 5891 if (delim != end) 5892 *delim = ','; 5893 curr = delim + 1; 5894 } 5895 5896 for (i = 0; i < 2; i++) { 5897 char locality = ld[i]; 5898 if (locality == 0) 5899 continue; 5900 5901 if (!nvlist_empty(base_nvl)) { 5902 if (who != NULL) 5903 (void) snprintf(who_buf, 5904 sizeof (who_buf), "%c%c$%s", 5905 base_type, locality, who); 5906 else 5907 (void) snprintf(who_buf, 5908 sizeof (who_buf), "%c%c$", 5909 base_type, locality); 5910 5911 (void) nvlist_add_nvlist(top_nvl, who_buf, 5912 base_nvl); 5913 } 5914 5915 5916 if (!nvlist_empty(set_nvl)) { 5917 if (who != NULL) 5918 (void) snprintf(who_buf, 5919 sizeof (who_buf), "%c%c$%s", 5920 set_type, locality, who); 5921 else 5922 (void) snprintf(who_buf, 5923 sizeof (who_buf), "%c%c$", 5924 set_type, locality); 5925 5926 (void) nvlist_add_nvlist(top_nvl, who_buf, 5927 set_nvl); 5928 } 5929 } 5930 } else { 5931 for (i = 0; i < 2; i++) { 5932 char locality = ld[i]; 5933 if (locality == 0) 5934 continue; 5935 5936 if (who != NULL) 5937 (void) snprintf(who_buf, sizeof (who_buf), 5938 "%c%c$%s", base_type, locality, who); 5939 else 5940 (void) snprintf(who_buf, sizeof (who_buf), 5941 "%c%c$", base_type, locality); 5942 (void) nvlist_add_boolean(top_nvl, who_buf); 5943 5944 if (who != NULL) 5945 (void) snprintf(who_buf, sizeof (who_buf), 5946 "%c%c$%s", set_type, locality, who); 5947 else 5948 (void) snprintf(who_buf, sizeof (who_buf), 5949 "%c%c$", set_type, locality); 5950 (void) nvlist_add_boolean(top_nvl, who_buf); 5951 } 5952 } 5953 } 5954 5955 static int 5956 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5957 { 5958 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5959 nomem(); 5960 5961 if (opts->set) { 5962 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5963 opts->descend, opts->who, opts->perms, *nvlp); 5964 } else if (opts->create) { 5965 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5966 opts->descend, NULL, opts->perms, *nvlp); 5967 } else if (opts->everyone) { 5968 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5969 opts->descend, NULL, opts->perms, *nvlp); 5970 } else { 5971 char *curr = opts->who; 5972 char *end = curr + strlen(curr); 5973 5974 while (curr < end) { 5975 const char *who; 5976 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5977 char *endch; 5978 char *delim = strchr(curr, ','); 5979 char errbuf[256]; 5980 char id[64]; 5981 struct passwd *p = NULL; 5982 struct group *g = NULL; 5983 5984 uid_t rid; 5985 if (delim == NULL) 5986 delim = end; 5987 else 5988 *delim = '\0'; 5989 5990 rid = (uid_t)strtol(curr, &endch, 0); 5991 if (opts->user) { 5992 who_type = ZFS_DELEG_USER; 5993 if (*endch != '\0') 5994 p = getpwnam(curr); 5995 else 5996 p = getpwuid(rid); 5997 5998 if (p != NULL) 5999 rid = p->pw_uid; 6000 else if (*endch != '\0') { 6001 (void) snprintf(errbuf, 256, gettext( 6002 "invalid user %s\n"), curr); 6003 allow_usage(un, B_TRUE, errbuf); 6004 } 6005 } else if (opts->group) { 6006 who_type = ZFS_DELEG_GROUP; 6007 if (*endch != '\0') 6008 g = getgrnam(curr); 6009 else 6010 g = getgrgid(rid); 6011 6012 if (g != NULL) 6013 rid = g->gr_gid; 6014 else if (*endch != '\0') { 6015 (void) snprintf(errbuf, 256, gettext( 6016 "invalid group %s\n"), curr); 6017 allow_usage(un, B_TRUE, errbuf); 6018 } 6019 } else { 6020 if (*endch != '\0') { 6021 p = getpwnam(curr); 6022 } else { 6023 p = getpwuid(rid); 6024 } 6025 6026 if (p == NULL) { 6027 if (*endch != '\0') { 6028 g = getgrnam(curr); 6029 } else { 6030 g = getgrgid(rid); 6031 } 6032 } 6033 6034 if (p != NULL) { 6035 who_type = ZFS_DELEG_USER; 6036 rid = p->pw_uid; 6037 } else if (g != NULL) { 6038 who_type = ZFS_DELEG_GROUP; 6039 rid = g->gr_gid; 6040 } else { 6041 (void) snprintf(errbuf, 256, gettext( 6042 "invalid user/group %s\n"), curr); 6043 allow_usage(un, B_TRUE, errbuf); 6044 } 6045 } 6046 6047 (void) sprintf(id, "%u", rid); 6048 who = id; 6049 6050 store_allow_perm(who_type, opts->local, 6051 opts->descend, who, opts->perms, *nvlp); 6052 curr = delim + 1; 6053 } 6054 } 6055 6056 return (0); 6057 } 6058 6059 static void 6060 print_set_creat_perms(uu_avl_t *who_avl) 6061 { 6062 const char *sc_title[] = { 6063 gettext("Permission sets:\n"), 6064 gettext("Create time permissions:\n"), 6065 NULL 6066 }; 6067 who_perm_node_t *who_node = NULL; 6068 int prev_weight = -1; 6069 6070 for (who_node = uu_avl_first(who_avl); who_node != NULL; 6071 who_node = uu_avl_next(who_avl, who_node)) { 6072 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 6073 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 6074 const char *who_name = who_node->who_perm.who_name; 6075 int weight = who_type2weight(who_type); 6076 boolean_t first = B_TRUE; 6077 deleg_perm_node_t *deleg_node; 6078 6079 if (prev_weight != weight) { 6080 (void) printf("%s", sc_title[weight]); 6081 prev_weight = weight; 6082 } 6083 6084 if (who_name == NULL || strnlen(who_name, 1) == 0) 6085 (void) printf("\t"); 6086 else 6087 (void) printf("\t%s ", who_name); 6088 6089 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 6090 deleg_node = uu_avl_next(avl, deleg_node)) { 6091 if (first) { 6092 (void) printf("%s", 6093 deleg_node->dpn_perm.dp_name); 6094 first = B_FALSE; 6095 } else 6096 (void) printf(",%s", 6097 deleg_node->dpn_perm.dp_name); 6098 } 6099 6100 (void) printf("\n"); 6101 } 6102 } 6103 6104 static void 6105 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 6106 const char *title) 6107 { 6108 who_perm_node_t *who_node = NULL; 6109 boolean_t prt_title = B_TRUE; 6110 uu_avl_walk_t *walk; 6111 6112 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 6113 nomem(); 6114 6115 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 6116 const char *who_name = who_node->who_perm.who_name; 6117 const char *nice_who_name = who_node->who_perm.who_ug_name; 6118 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 6119 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 6120 char delim = ' '; 6121 deleg_perm_node_t *deleg_node; 6122 boolean_t prt_who = B_TRUE; 6123 6124 for (deleg_node = uu_avl_first(avl); 6125 deleg_node != NULL; 6126 deleg_node = uu_avl_next(avl, deleg_node)) { 6127 if (local != deleg_node->dpn_perm.dp_local || 6128 descend != deleg_node->dpn_perm.dp_descend) 6129 continue; 6130 6131 if (prt_who) { 6132 const char *who = NULL; 6133 if (prt_title) { 6134 prt_title = B_FALSE; 6135 (void) printf("%s", title); 6136 } 6137 6138 switch (who_type) { 6139 case ZFS_DELEG_USER_SETS: 6140 case ZFS_DELEG_USER: 6141 who = gettext("user"); 6142 if (nice_who_name) 6143 who_name = nice_who_name; 6144 break; 6145 case ZFS_DELEG_GROUP_SETS: 6146 case ZFS_DELEG_GROUP: 6147 who = gettext("group"); 6148 if (nice_who_name) 6149 who_name = nice_who_name; 6150 break; 6151 case ZFS_DELEG_EVERYONE_SETS: 6152 case ZFS_DELEG_EVERYONE: 6153 who = gettext("everyone"); 6154 who_name = NULL; 6155 break; 6156 6157 default: 6158 assert(who != NULL); 6159 } 6160 6161 prt_who = B_FALSE; 6162 if (who_name == NULL) 6163 (void) printf("\t%s", who); 6164 else 6165 (void) printf("\t%s %s", who, who_name); 6166 } 6167 6168 (void) printf("%c%s", delim, 6169 deleg_node->dpn_perm.dp_name); 6170 delim = ','; 6171 } 6172 6173 if (!prt_who) 6174 (void) printf("\n"); 6175 } 6176 6177 uu_avl_walk_end(walk); 6178 } 6179 6180 static void 6181 print_fs_perms(fs_perm_set_t *fspset) 6182 { 6183 fs_perm_node_t *node = NULL; 6184 char buf[MAXNAMELEN + 32]; 6185 const char *dsname = buf; 6186 6187 for (node = uu_list_first(fspset->fsps_list); node != NULL; 6188 node = uu_list_next(fspset->fsps_list, node)) { 6189 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 6190 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 6191 int left = 0; 6192 6193 (void) snprintf(buf, sizeof (buf), 6194 gettext("---- Permissions on %s "), 6195 node->fspn_fsperm.fsp_name); 6196 (void) printf("%s", dsname); 6197 left = 70 - strlen(buf); 6198 while (left-- > 0) 6199 (void) printf("-"); 6200 (void) printf("\n"); 6201 6202 print_set_creat_perms(sc_avl); 6203 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 6204 gettext("Local permissions:\n")); 6205 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 6206 gettext("Descendent permissions:\n")); 6207 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 6208 gettext("Local+Descendent permissions:\n")); 6209 } 6210 } 6211 6212 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 6213 6214 struct deleg_perms { 6215 boolean_t un; 6216 nvlist_t *nvl; 6217 }; 6218 6219 static int 6220 set_deleg_perms(zfs_handle_t *zhp, void *data) 6221 { 6222 struct deleg_perms *perms = (struct deleg_perms *)data; 6223 zfs_type_t zfs_type = zfs_get_type(zhp); 6224 6225 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 6226 return (0); 6227 6228 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 6229 } 6230 6231 static int 6232 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 6233 { 6234 zfs_handle_t *zhp; 6235 nvlist_t *perm_nvl = NULL; 6236 nvlist_t *update_perm_nvl = NULL; 6237 int error = 1; 6238 int c; 6239 struct allow_opts opts = { 0 }; 6240 6241 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 6242 6243 /* check opts */ 6244 while ((c = getopt(argc, argv, optstr)) != -1) { 6245 switch (c) { 6246 case 'l': 6247 opts.local = B_TRUE; 6248 break; 6249 case 'd': 6250 opts.descend = B_TRUE; 6251 break; 6252 case 'u': 6253 opts.user = B_TRUE; 6254 break; 6255 case 'g': 6256 opts.group = B_TRUE; 6257 break; 6258 case 'e': 6259 opts.everyone = B_TRUE; 6260 break; 6261 case 's': 6262 opts.set = B_TRUE; 6263 break; 6264 case 'c': 6265 opts.create = B_TRUE; 6266 break; 6267 case 'r': 6268 opts.recursive = B_TRUE; 6269 break; 6270 case ':': 6271 (void) fprintf(stderr, gettext("missing argument for " 6272 "'%c' option\n"), optopt); 6273 usage(B_FALSE); 6274 break; 6275 case 'h': 6276 opts.prt_usage = B_TRUE; 6277 break; 6278 case '?': 6279 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6280 optopt); 6281 usage(B_FALSE); 6282 } 6283 } 6284 6285 argc -= optind; 6286 argv += optind; 6287 6288 /* check arguments */ 6289 parse_allow_args(argc, argv, un, &opts); 6290 6291 /* try to open the dataset */ 6292 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 6293 ZFS_TYPE_VOLUME)) == NULL) { 6294 (void) fprintf(stderr, "Failed to open dataset: %s\n", 6295 opts.dataset); 6296 return (-1); 6297 } 6298 6299 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 6300 goto cleanup2; 6301 6302 fs_perm_set_init(&fs_perm_set); 6303 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 6304 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 6305 goto cleanup1; 6306 } 6307 6308 if (opts.prt_perms) 6309 print_fs_perms(&fs_perm_set); 6310 else { 6311 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 6312 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 6313 goto cleanup0; 6314 6315 if (un && opts.recursive) { 6316 struct deleg_perms data = { un, update_perm_nvl }; 6317 if (zfs_iter_filesystems(zhp, 0, set_deleg_perms, 6318 &data) != 0) 6319 goto cleanup0; 6320 } 6321 } 6322 6323 error = 0; 6324 6325 cleanup0: 6326 nvlist_free(perm_nvl); 6327 nvlist_free(update_perm_nvl); 6328 cleanup1: 6329 fs_perm_set_fini(&fs_perm_set); 6330 cleanup2: 6331 zfs_close(zhp); 6332 6333 return (error); 6334 } 6335 6336 static int 6337 zfs_do_allow(int argc, char **argv) 6338 { 6339 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 6340 } 6341 6342 static int 6343 zfs_do_unallow(int argc, char **argv) 6344 { 6345 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 6346 } 6347 6348 static int 6349 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 6350 { 6351 int errors = 0; 6352 int i; 6353 const char *tag; 6354 boolean_t recursive = B_FALSE; 6355 const char *opts = holding ? "rt" : "r"; 6356 int c; 6357 6358 /* check options */ 6359 while ((c = getopt(argc, argv, opts)) != -1) { 6360 switch (c) { 6361 case 'r': 6362 recursive = B_TRUE; 6363 break; 6364 case '?': 6365 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6366 optopt); 6367 usage(B_FALSE); 6368 } 6369 } 6370 6371 argc -= optind; 6372 argv += optind; 6373 6374 /* check number of arguments */ 6375 if (argc < 2) 6376 usage(B_FALSE); 6377 6378 tag = argv[0]; 6379 --argc; 6380 ++argv; 6381 6382 if (holding && tag[0] == '.') { 6383 /* tags starting with '.' are reserved for libzfs */ 6384 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 6385 usage(B_FALSE); 6386 } 6387 6388 for (i = 0; i < argc; ++i) { 6389 zfs_handle_t *zhp; 6390 char parent[ZFS_MAX_DATASET_NAME_LEN]; 6391 const char *delim; 6392 char *path = argv[i]; 6393 6394 delim = strchr(path, '@'); 6395 if (delim == NULL) { 6396 (void) fprintf(stderr, 6397 gettext("'%s' is not a snapshot\n"), path); 6398 ++errors; 6399 continue; 6400 } 6401 (void) strlcpy(parent, path, MIN(sizeof (parent), 6402 delim - path + 1)); 6403 6404 zhp = zfs_open(g_zfs, parent, 6405 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 6406 if (zhp == NULL) { 6407 ++errors; 6408 continue; 6409 } 6410 if (holding) { 6411 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 6412 ++errors; 6413 } else { 6414 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 6415 ++errors; 6416 } 6417 zfs_close(zhp); 6418 } 6419 6420 return (errors != 0); 6421 } 6422 6423 /* 6424 * zfs hold [-r] [-t] <tag> <snap> ... 6425 * 6426 * -r Recursively hold 6427 * 6428 * Apply a user-hold with the given tag to the list of snapshots. 6429 */ 6430 static int 6431 zfs_do_hold(int argc, char **argv) 6432 { 6433 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 6434 } 6435 6436 /* 6437 * zfs release [-r] <tag> <snap> ... 6438 * 6439 * -r Recursively release 6440 * 6441 * Release a user-hold with the given tag from the list of snapshots. 6442 */ 6443 static int 6444 zfs_do_release(int argc, char **argv) 6445 { 6446 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 6447 } 6448 6449 typedef struct holds_cbdata { 6450 boolean_t cb_recursive; 6451 const char *cb_snapname; 6452 nvlist_t **cb_nvlp; 6453 size_t cb_max_namelen; 6454 size_t cb_max_taglen; 6455 } holds_cbdata_t; 6456 6457 #define STRFTIME_FMT_STR "%a %b %e %H:%M %Y" 6458 #define DATETIME_BUF_LEN (32) 6459 /* 6460 * 6461 */ 6462 static void 6463 print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl, 6464 boolean_t parsable) 6465 { 6466 int i; 6467 nvpair_t *nvp = NULL; 6468 const char *const hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 6469 const char *col; 6470 6471 if (!scripted) { 6472 for (i = 0; i < 3; i++) { 6473 col = gettext(hdr_cols[i]); 6474 if (i < 2) 6475 (void) printf("%-*s ", i ? tagwidth : nwidth, 6476 col); 6477 else 6478 (void) printf("%s\n", col); 6479 } 6480 } 6481 6482 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 6483 char *zname = nvpair_name(nvp); 6484 nvlist_t *nvl2; 6485 nvpair_t *nvp2 = NULL; 6486 (void) nvpair_value_nvlist(nvp, &nvl2); 6487 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 6488 char tsbuf[DATETIME_BUF_LEN]; 6489 const char *tagname = nvpair_name(nvp2); 6490 uint64_t val = 0; 6491 time_t time; 6492 struct tm t; 6493 6494 (void) nvpair_value_uint64(nvp2, &val); 6495 time = (time_t)val; 6496 (void) localtime_r(&time, &t); 6497 (void) strftime(tsbuf, DATETIME_BUF_LEN, 6498 gettext(STRFTIME_FMT_STR), &t); 6499 6500 if (scripted) { 6501 if (parsable) { 6502 (void) printf("%s\t%s\t%ld\n", zname, 6503 tagname, (unsigned long)time); 6504 } else { 6505 (void) printf("%s\t%s\t%s\n", zname, 6506 tagname, tsbuf); 6507 } 6508 } else { 6509 if (parsable) { 6510 (void) printf("%-*s %-*s %ld\n", 6511 nwidth, zname, tagwidth, 6512 tagname, (unsigned long)time); 6513 } else { 6514 (void) printf("%-*s %-*s %s\n", 6515 nwidth, zname, tagwidth, 6516 tagname, tsbuf); 6517 } 6518 } 6519 } 6520 } 6521 } 6522 6523 /* 6524 * Generic callback function to list a dataset or snapshot. 6525 */ 6526 static int 6527 holds_callback(zfs_handle_t *zhp, void *data) 6528 { 6529 holds_cbdata_t *cbp = data; 6530 nvlist_t *top_nvl = *cbp->cb_nvlp; 6531 nvlist_t *nvl = NULL; 6532 nvpair_t *nvp = NULL; 6533 const char *zname = zfs_get_name(zhp); 6534 size_t znamelen = strlen(zname); 6535 6536 if (cbp->cb_recursive) { 6537 const char *snapname; 6538 char *delim = strchr(zname, '@'); 6539 if (delim == NULL) 6540 return (0); 6541 6542 snapname = delim + 1; 6543 if (strcmp(cbp->cb_snapname, snapname)) 6544 return (0); 6545 } 6546 6547 if (zfs_get_holds(zhp, &nvl) != 0) 6548 return (-1); 6549 6550 if (znamelen > cbp->cb_max_namelen) 6551 cbp->cb_max_namelen = znamelen; 6552 6553 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 6554 const char *tag = nvpair_name(nvp); 6555 size_t taglen = strlen(tag); 6556 if (taglen > cbp->cb_max_taglen) 6557 cbp->cb_max_taglen = taglen; 6558 } 6559 6560 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 6561 } 6562 6563 /* 6564 * zfs holds [-rHp] <snap> ... 6565 * 6566 * -r Lists holds that are set on the named snapshots recursively. 6567 * -H Scripted mode; elide headers and separate columns by tabs. 6568 * -p Display values in parsable (literal) format. 6569 */ 6570 static int 6571 zfs_do_holds(int argc, char **argv) 6572 { 6573 int c; 6574 boolean_t errors = B_FALSE; 6575 boolean_t scripted = B_FALSE; 6576 boolean_t recursive = B_FALSE; 6577 boolean_t parsable = B_FALSE; 6578 6579 int types = ZFS_TYPE_SNAPSHOT; 6580 holds_cbdata_t cb = { 0 }; 6581 6582 int limit = 0; 6583 int ret = 0; 6584 int flags = 0; 6585 6586 /* check options */ 6587 while ((c = getopt(argc, argv, "rHp")) != -1) { 6588 switch (c) { 6589 case 'r': 6590 recursive = B_TRUE; 6591 break; 6592 case 'H': 6593 scripted = B_TRUE; 6594 break; 6595 case 'p': 6596 parsable = B_TRUE; 6597 break; 6598 case '?': 6599 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6600 optopt); 6601 usage(B_FALSE); 6602 } 6603 } 6604 6605 if (recursive) { 6606 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 6607 flags |= ZFS_ITER_RECURSE; 6608 } 6609 6610 argc -= optind; 6611 argv += optind; 6612 6613 /* check number of arguments */ 6614 if (argc < 1) 6615 usage(B_FALSE); 6616 6617 nvlist_t *nvl = fnvlist_alloc(); 6618 6619 for (int i = 0; i < argc; ++i) { 6620 char *snapshot = argv[i]; 6621 const char *delim; 6622 const char *snapname; 6623 6624 delim = strchr(snapshot, '@'); 6625 if (delim == NULL) { 6626 (void) fprintf(stderr, 6627 gettext("'%s' is not a snapshot\n"), snapshot); 6628 errors = B_TRUE; 6629 continue; 6630 } 6631 snapname = delim + 1; 6632 if (recursive) 6633 snapshot[delim - snapshot] = '\0'; 6634 6635 cb.cb_recursive = recursive; 6636 cb.cb_snapname = snapname; 6637 cb.cb_nvlp = &nvl; 6638 6639 /* 6640 * 1. collect holds data, set format options 6641 */ 6642 ret = zfs_for_each(1, argv + i, flags, types, NULL, NULL, limit, 6643 holds_callback, &cb); 6644 if (ret != 0) 6645 errors = B_TRUE; 6646 } 6647 6648 /* 6649 * 2. print holds data 6650 */ 6651 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl, 6652 parsable); 6653 6654 if (nvlist_empty(nvl)) 6655 (void) fprintf(stderr, gettext("no datasets available\n")); 6656 6657 nvlist_free(nvl); 6658 6659 return (errors); 6660 } 6661 6662 #define CHECK_SPINNER 30 6663 #define SPINNER_TIME 3 /* seconds */ 6664 #define MOUNT_TIME 1 /* seconds */ 6665 6666 typedef struct get_all_state { 6667 boolean_t ga_verbose; 6668 get_all_cb_t *ga_cbp; 6669 } get_all_state_t; 6670 6671 static int 6672 get_one_dataset(zfs_handle_t *zhp, void *data) 6673 { 6674 static const char *const spin[] = { "-", "\\", "|", "/" }; 6675 static int spinval = 0; 6676 static int spincheck = 0; 6677 static time_t last_spin_time = (time_t)0; 6678 get_all_state_t *state = data; 6679 zfs_type_t type = zfs_get_type(zhp); 6680 6681 if (state->ga_verbose) { 6682 if (--spincheck < 0) { 6683 time_t now = time(NULL); 6684 if (last_spin_time + SPINNER_TIME < now) { 6685 update_progress(spin[spinval++ % 4]); 6686 last_spin_time = now; 6687 } 6688 spincheck = CHECK_SPINNER; 6689 } 6690 } 6691 6692 /* 6693 * Iterate over any nested datasets. 6694 */ 6695 if (zfs_iter_filesystems(zhp, 0, get_one_dataset, data) != 0) { 6696 zfs_close(zhp); 6697 return (1); 6698 } 6699 6700 /* 6701 * Skip any datasets whose type does not match. 6702 */ 6703 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 6704 zfs_close(zhp); 6705 return (0); 6706 } 6707 libzfs_add_handle(state->ga_cbp, zhp); 6708 assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc); 6709 6710 return (0); 6711 } 6712 6713 static void 6714 get_all_datasets(get_all_cb_t *cbp, boolean_t verbose) 6715 { 6716 get_all_state_t state = { 6717 .ga_verbose = verbose, 6718 .ga_cbp = cbp 6719 }; 6720 6721 if (verbose) 6722 set_progress_header(gettext("Reading ZFS config")); 6723 (void) zfs_iter_root(g_zfs, get_one_dataset, &state); 6724 6725 if (verbose) 6726 finish_progress(gettext("done.")); 6727 } 6728 6729 /* 6730 * Generic callback for sharing or mounting filesystems. Because the code is so 6731 * similar, we have a common function with an extra parameter to determine which 6732 * mode we are using. 6733 */ 6734 typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t; 6735 6736 typedef struct share_mount_state { 6737 share_mount_op_t sm_op; 6738 boolean_t sm_verbose; 6739 int sm_flags; 6740 char *sm_options; 6741 enum sa_protocol sm_proto; /* only valid for OP_SHARE */ 6742 pthread_mutex_t sm_lock; /* protects the remaining fields */ 6743 uint_t sm_total; /* number of filesystems to process */ 6744 uint_t sm_done; /* number of filesystems processed */ 6745 int sm_status; /* -1 if any of the share/mount operations failed */ 6746 } share_mount_state_t; 6747 6748 /* 6749 * Share or mount a dataset. 6750 */ 6751 static int 6752 share_mount_one(zfs_handle_t *zhp, int op, int flags, enum sa_protocol protocol, 6753 boolean_t explicit, const char *options) 6754 { 6755 char mountpoint[ZFS_MAXPROPLEN]; 6756 char shareopts[ZFS_MAXPROPLEN]; 6757 char smbshareopts[ZFS_MAXPROPLEN]; 6758 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 6759 struct mnttab mnt; 6760 uint64_t zoned, canmount; 6761 boolean_t shared_nfs, shared_smb; 6762 6763 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 6764 6765 /* 6766 * Check to make sure we can mount/share this dataset. If we 6767 * are in the global zone and the filesystem is exported to a 6768 * local zone, or if we are in a local zone and the 6769 * filesystem is not exported, then it is an error. 6770 */ 6771 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 6772 6773 if (zoned && getzoneid() == GLOBAL_ZONEID) { 6774 if (!explicit) 6775 return (0); 6776 6777 (void) fprintf(stderr, gettext("cannot %s '%s': " 6778 "dataset is exported to a local zone\n"), cmdname, 6779 zfs_get_name(zhp)); 6780 return (1); 6781 6782 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 6783 if (!explicit) 6784 return (0); 6785 6786 (void) fprintf(stderr, gettext("cannot %s '%s': " 6787 "permission denied\n"), cmdname, 6788 zfs_get_name(zhp)); 6789 return (1); 6790 } 6791 6792 /* 6793 * Ignore any filesystems which don't apply to us. This 6794 * includes those with a legacy mountpoint, or those with 6795 * legacy share options. 6796 */ 6797 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6798 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 6799 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 6800 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 6801 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 6802 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 6803 6804 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 6805 strcmp(smbshareopts, "off") == 0) { 6806 if (!explicit) 6807 return (0); 6808 6809 (void) fprintf(stderr, gettext("cannot share '%s': " 6810 "legacy share\n"), zfs_get_name(zhp)); 6811 (void) fprintf(stderr, gettext("use exports(5) or " 6812 "smb.conf(5) to share this filesystem, or set " 6813 "the sharenfs or sharesmb property\n")); 6814 return (1); 6815 } 6816 6817 /* 6818 * We cannot share or mount legacy filesystems. If the 6819 * shareopts is non-legacy but the mountpoint is legacy, we 6820 * treat it as a legacy share. 6821 */ 6822 if (strcmp(mountpoint, "legacy") == 0) { 6823 if (!explicit) 6824 return (0); 6825 6826 (void) fprintf(stderr, gettext("cannot %s '%s': " 6827 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 6828 (void) fprintf(stderr, gettext("use %s(8) to " 6829 "%s this filesystem\n"), cmdname, cmdname); 6830 return (1); 6831 } 6832 6833 if (strcmp(mountpoint, "none") == 0) { 6834 if (!explicit) 6835 return (0); 6836 6837 (void) fprintf(stderr, gettext("cannot %s '%s': no " 6838 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 6839 return (1); 6840 } 6841 6842 /* 6843 * canmount explicit outcome 6844 * on no pass through 6845 * on yes pass through 6846 * off no return 0 6847 * off yes display error, return 1 6848 * noauto no return 0 6849 * noauto yes pass through 6850 */ 6851 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 6852 if (canmount == ZFS_CANMOUNT_OFF) { 6853 if (!explicit) 6854 return (0); 6855 6856 (void) fprintf(stderr, gettext("cannot %s '%s': " 6857 "'canmount' property is set to 'off'\n"), cmdname, 6858 zfs_get_name(zhp)); 6859 return (1); 6860 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 6861 /* 6862 * When performing a 'zfs mount -a', we skip any mounts for 6863 * datasets that have 'noauto' set. Sharing a dataset with 6864 * 'noauto' set is only allowed if it's mounted. 6865 */ 6866 if (op == OP_MOUNT) 6867 return (0); 6868 if (op == OP_SHARE && !zfs_is_mounted(zhp, NULL)) { 6869 /* also purge it from existing exports */ 6870 zfs_unshare(zhp, mountpoint, NULL); 6871 return (0); 6872 } 6873 } 6874 6875 /* 6876 * If this filesystem is encrypted and does not have 6877 * a loaded key, we can not mount it. 6878 */ 6879 if ((flags & MS_CRYPT) == 0 && 6880 zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF && 6881 zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS) == 6882 ZFS_KEYSTATUS_UNAVAILABLE) { 6883 if (!explicit) 6884 return (0); 6885 6886 (void) fprintf(stderr, gettext("cannot %s '%s': " 6887 "encryption key not loaded\n"), cmdname, zfs_get_name(zhp)); 6888 return (1); 6889 } 6890 6891 /* 6892 * If this filesystem is inconsistent and has a receive resume 6893 * token, we can not mount it. 6894 */ 6895 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 6896 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 6897 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 6898 if (!explicit) 6899 return (0); 6900 6901 (void) fprintf(stderr, gettext("cannot %s '%s': " 6902 "Contains partially-completed state from " 6903 "\"zfs receive -s\", which can be resumed with " 6904 "\"zfs send -t\"\n"), 6905 cmdname, zfs_get_name(zhp)); 6906 return (1); 6907 } 6908 6909 if (zfs_prop_get_int(zhp, ZFS_PROP_REDACTED) && !(flags & MS_FORCE)) { 6910 if (!explicit) 6911 return (0); 6912 6913 (void) fprintf(stderr, gettext("cannot %s '%s': " 6914 "Dataset is not complete, was created by receiving " 6915 "a redacted zfs send stream.\n"), cmdname, 6916 zfs_get_name(zhp)); 6917 return (1); 6918 } 6919 6920 /* 6921 * At this point, we have verified that the mountpoint and/or 6922 * shareopts are appropriate for auto management. If the 6923 * filesystem is already mounted or shared, return (failing 6924 * for explicit requests); otherwise mount or share the 6925 * filesystem. 6926 */ 6927 switch (op) { 6928 case OP_SHARE: { 6929 enum sa_protocol prot[] = {SA_PROTOCOL_NFS, SA_NO_PROTOCOL}; 6930 shared_nfs = zfs_is_shared(zhp, NULL, prot); 6931 *prot = SA_PROTOCOL_SMB; 6932 shared_smb = zfs_is_shared(zhp, NULL, prot); 6933 6934 if ((shared_nfs && shared_smb) || 6935 (shared_nfs && strcmp(shareopts, "on") == 0 && 6936 strcmp(smbshareopts, "off") == 0) || 6937 (shared_smb && strcmp(smbshareopts, "on") == 0 && 6938 strcmp(shareopts, "off") == 0)) { 6939 if (!explicit) 6940 return (0); 6941 6942 (void) fprintf(stderr, gettext("cannot share " 6943 "'%s': filesystem already shared\n"), 6944 zfs_get_name(zhp)); 6945 return (1); 6946 } 6947 6948 if (!zfs_is_mounted(zhp, NULL) && 6949 zfs_mount(zhp, NULL, flags) != 0) 6950 return (1); 6951 6952 *prot = protocol; 6953 if (zfs_share(zhp, protocol == SA_NO_PROTOCOL ? NULL : prot)) 6954 return (1); 6955 6956 } 6957 break; 6958 6959 case OP_MOUNT: 6960 mnt.mnt_mntopts = (char *)(options ?: ""); 6961 6962 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6963 zfs_is_mounted(zhp, NULL)) { 6964 if (!explicit) 6965 return (0); 6966 6967 (void) fprintf(stderr, gettext("cannot mount " 6968 "'%s': filesystem already mounted\n"), 6969 zfs_get_name(zhp)); 6970 return (1); 6971 } 6972 6973 if (zfs_mount(zhp, options, flags) != 0) 6974 return (1); 6975 break; 6976 } 6977 6978 return (0); 6979 } 6980 6981 /* 6982 * Reports progress in the form "(current/total)". Not thread-safe. 6983 */ 6984 static void 6985 report_mount_progress(int current, int total) 6986 { 6987 static time_t last_progress_time = 0; 6988 time_t now = time(NULL); 6989 char info[32]; 6990 6991 /* display header if we're here for the first time */ 6992 if (current == 1) { 6993 set_progress_header(gettext("Mounting ZFS filesystems")); 6994 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6995 /* too soon to report again */ 6996 return; 6997 } 6998 6999 last_progress_time = now; 7000 7001 (void) sprintf(info, "(%d/%d)", current, total); 7002 7003 if (current == total) 7004 finish_progress(info); 7005 else 7006 update_progress(info); 7007 } 7008 7009 /* 7010 * zfs_foreach_mountpoint() callback that mounts or shares one filesystem and 7011 * updates the progress meter. 7012 */ 7013 static int 7014 share_mount_one_cb(zfs_handle_t *zhp, void *arg) 7015 { 7016 share_mount_state_t *sms = arg; 7017 int ret; 7018 7019 ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto, 7020 B_FALSE, sms->sm_options); 7021 7022 pthread_mutex_lock(&sms->sm_lock); 7023 if (ret != 0) 7024 sms->sm_status = ret; 7025 sms->sm_done++; 7026 if (sms->sm_verbose) 7027 report_mount_progress(sms->sm_done, sms->sm_total); 7028 pthread_mutex_unlock(&sms->sm_lock); 7029 return (ret); 7030 } 7031 7032 static void 7033 append_options(char *mntopts, char *newopts) 7034 { 7035 int len = strlen(mntopts); 7036 7037 /* original length plus new string to append plus 1 for the comma */ 7038 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 7039 (void) fprintf(stderr, gettext("the opts argument for " 7040 "'%s' option is too long (more than %d chars)\n"), 7041 "-o", MNT_LINE_MAX); 7042 usage(B_FALSE); 7043 } 7044 7045 if (*mntopts) 7046 mntopts[len++] = ','; 7047 7048 (void) strcpy(&mntopts[len], newopts); 7049 } 7050 7051 static enum sa_protocol 7052 sa_protocol_decode(const char *protocol) 7053 { 7054 for (enum sa_protocol i = 0; i < ARRAY_SIZE(sa_protocol_names); ++i) 7055 if (strcmp(protocol, sa_protocol_names[i]) == 0) 7056 return (i); 7057 7058 (void) fputs(gettext("share type must be one of: "), stderr); 7059 for (enum sa_protocol i = 0; 7060 i < ARRAY_SIZE(sa_protocol_names); ++i) 7061 (void) fprintf(stderr, "%s%s", 7062 i != 0 ? ", " : "", sa_protocol_names[i]); 7063 (void) fputc('\n', stderr); 7064 usage(B_FALSE); 7065 } 7066 7067 static int 7068 share_mount(int op, int argc, char **argv) 7069 { 7070 int do_all = 0; 7071 boolean_t verbose = B_FALSE; 7072 int c, ret = 0; 7073 char *options = NULL; 7074 int flags = 0; 7075 7076 /* check options */ 7077 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:Of" : "al")) 7078 != -1) { 7079 switch (c) { 7080 case 'a': 7081 do_all = 1; 7082 break; 7083 case 'v': 7084 verbose = B_TRUE; 7085 break; 7086 case 'l': 7087 flags |= MS_CRYPT; 7088 break; 7089 case 'o': 7090 if (*optarg == '\0') { 7091 (void) fprintf(stderr, gettext("empty mount " 7092 "options (-o) specified\n")); 7093 usage(B_FALSE); 7094 } 7095 7096 if (options == NULL) 7097 options = safe_malloc(MNT_LINE_MAX + 1); 7098 7099 /* option validation is done later */ 7100 append_options(options, optarg); 7101 break; 7102 case 'O': 7103 flags |= MS_OVERLAY; 7104 break; 7105 case 'f': 7106 flags |= MS_FORCE; 7107 break; 7108 case ':': 7109 (void) fprintf(stderr, gettext("missing argument for " 7110 "'%c' option\n"), optopt); 7111 usage(B_FALSE); 7112 break; 7113 case '?': 7114 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7115 optopt); 7116 usage(B_FALSE); 7117 } 7118 } 7119 7120 argc -= optind; 7121 argv += optind; 7122 7123 /* check number of arguments */ 7124 if (do_all) { 7125 enum sa_protocol protocol = SA_NO_PROTOCOL; 7126 7127 if (op == OP_SHARE && argc > 0) { 7128 protocol = sa_protocol_decode(argv[0]); 7129 argc--; 7130 argv++; 7131 } 7132 7133 if (argc != 0) { 7134 (void) fprintf(stderr, gettext("too many arguments\n")); 7135 usage(B_FALSE); 7136 } 7137 7138 start_progress_timer(); 7139 get_all_cb_t cb = { 0 }; 7140 get_all_datasets(&cb, verbose); 7141 7142 if (cb.cb_used == 0) { 7143 free(options); 7144 return (0); 7145 } 7146 7147 share_mount_state_t share_mount_state = { 0 }; 7148 share_mount_state.sm_op = op; 7149 share_mount_state.sm_verbose = verbose; 7150 share_mount_state.sm_flags = flags; 7151 share_mount_state.sm_options = options; 7152 share_mount_state.sm_proto = protocol; 7153 share_mount_state.sm_total = cb.cb_used; 7154 pthread_mutex_init(&share_mount_state.sm_lock, NULL); 7155 7156 /* For a 'zfs share -a' operation start with a clean slate. */ 7157 zfs_truncate_shares(NULL); 7158 7159 /* 7160 * libshare isn't mt-safe, so only do the operation in parallel 7161 * if we're mounting. Additionally, the key-loading option must 7162 * be serialized so that we can prompt the user for their keys 7163 * in a consistent manner. 7164 */ 7165 zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used, 7166 share_mount_one_cb, &share_mount_state, 7167 op == OP_MOUNT && !(flags & MS_CRYPT)); 7168 zfs_commit_shares(NULL); 7169 7170 ret = share_mount_state.sm_status; 7171 7172 for (int i = 0; i < cb.cb_used; i++) 7173 zfs_close(cb.cb_handles[i]); 7174 free(cb.cb_handles); 7175 } else if (argc == 0) { 7176 FILE *mnttab; 7177 struct mnttab entry; 7178 7179 if ((op == OP_SHARE) || (options != NULL)) { 7180 (void) fprintf(stderr, gettext("missing filesystem " 7181 "argument (specify -a for all)\n")); 7182 usage(B_FALSE); 7183 } 7184 7185 /* 7186 * When mount is given no arguments, go through 7187 * /proc/self/mounts and display any active ZFS mounts. 7188 * We hide any snapshots, since they are controlled 7189 * automatically. 7190 */ 7191 7192 if ((mnttab = fopen(MNTTAB, "re")) == NULL) { 7193 free(options); 7194 return (ENOENT); 7195 } 7196 7197 while (getmntent(mnttab, &entry) == 0) { 7198 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 7199 strchr(entry.mnt_special, '@') != NULL) 7200 continue; 7201 7202 (void) printf("%-30s %s\n", entry.mnt_special, 7203 entry.mnt_mountp); 7204 } 7205 7206 (void) fclose(mnttab); 7207 } else { 7208 zfs_handle_t *zhp; 7209 7210 if (argc > 1) { 7211 (void) fprintf(stderr, 7212 gettext("too many arguments\n")); 7213 usage(B_FALSE); 7214 } 7215 7216 if ((zhp = zfs_open(g_zfs, argv[0], 7217 ZFS_TYPE_FILESYSTEM)) == NULL) { 7218 ret = 1; 7219 } else { 7220 ret = share_mount_one(zhp, op, flags, SA_NO_PROTOCOL, 7221 B_TRUE, options); 7222 zfs_commit_shares(NULL); 7223 zfs_close(zhp); 7224 } 7225 } 7226 7227 free(options); 7228 return (ret); 7229 } 7230 7231 /* 7232 * zfs mount -a 7233 * zfs mount filesystem 7234 * 7235 * Mount all filesystems, or mount the given filesystem. 7236 */ 7237 static int 7238 zfs_do_mount(int argc, char **argv) 7239 { 7240 return (share_mount(OP_MOUNT, argc, argv)); 7241 } 7242 7243 /* 7244 * zfs share -a [nfs | smb] 7245 * zfs share filesystem 7246 * 7247 * Share all filesystems, or share the given filesystem. 7248 */ 7249 static int 7250 zfs_do_share(int argc, char **argv) 7251 { 7252 return (share_mount(OP_SHARE, argc, argv)); 7253 } 7254 7255 typedef struct unshare_unmount_node { 7256 zfs_handle_t *un_zhp; 7257 char *un_mountp; 7258 uu_avl_node_t un_avlnode; 7259 } unshare_unmount_node_t; 7260 7261 static int 7262 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 7263 { 7264 (void) unused; 7265 const unshare_unmount_node_t *l = larg; 7266 const unshare_unmount_node_t *r = rarg; 7267 7268 return (strcmp(l->un_mountp, r->un_mountp)); 7269 } 7270 7271 /* 7272 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 7273 * absolute path, find the entry /proc/self/mounts, verify that it's a 7274 * ZFS filesystem, and unmount it appropriately. 7275 */ 7276 static int 7277 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 7278 { 7279 zfs_handle_t *zhp; 7280 int ret = 0; 7281 struct stat64 statbuf; 7282 struct extmnttab entry; 7283 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 7284 ino_t path_inode; 7285 7286 /* 7287 * Search for the given (major,minor) pair in the mount table. 7288 */ 7289 7290 if (getextmntent(path, &entry, &statbuf) != 0) { 7291 if (op == OP_SHARE) { 7292 (void) fprintf(stderr, gettext("cannot %s '%s': not " 7293 "currently mounted\n"), cmdname, path); 7294 return (1); 7295 } 7296 (void) fprintf(stderr, gettext("warning: %s not in" 7297 "/proc/self/mounts\n"), path); 7298 if ((ret = umount2(path, flags)) != 0) 7299 (void) fprintf(stderr, gettext("%s: %s\n"), path, 7300 strerror(errno)); 7301 return (ret != 0); 7302 } 7303 path_inode = statbuf.st_ino; 7304 7305 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 7306 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 7307 "filesystem\n"), cmdname, path); 7308 return (1); 7309 } 7310 7311 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 7312 ZFS_TYPE_FILESYSTEM)) == NULL) 7313 return (1); 7314 7315 ret = 1; 7316 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 7317 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 7318 cmdname, path, strerror(errno)); 7319 goto out; 7320 } else if (statbuf.st_ino != path_inode) { 7321 (void) fprintf(stderr, gettext("cannot " 7322 "%s '%s': not a mountpoint\n"), cmdname, path); 7323 goto out; 7324 } 7325 7326 if (op == OP_SHARE) { 7327 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 7328 char smbshare_prop[ZFS_MAXPROPLEN]; 7329 7330 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 7331 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 7332 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 7333 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 7334 7335 if (strcmp(nfs_mnt_prop, "off") == 0 && 7336 strcmp(smbshare_prop, "off") == 0) { 7337 (void) fprintf(stderr, gettext("cannot unshare " 7338 "'%s': legacy share\n"), path); 7339 (void) fprintf(stderr, gettext("use exportfs(8) " 7340 "or smbcontrol(1) to unshare this filesystem\n")); 7341 } else if (!zfs_is_shared(zhp, NULL, NULL)) { 7342 (void) fprintf(stderr, gettext("cannot unshare '%s': " 7343 "not currently shared\n"), path); 7344 } else { 7345 ret = zfs_unshare(zhp, path, NULL); 7346 zfs_commit_shares(NULL); 7347 } 7348 } else { 7349 char mtpt_prop[ZFS_MAXPROPLEN]; 7350 7351 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 7352 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 7353 7354 if (is_manual) { 7355 ret = zfs_unmount(zhp, NULL, flags); 7356 } else if (strcmp(mtpt_prop, "legacy") == 0) { 7357 (void) fprintf(stderr, gettext("cannot unmount " 7358 "'%s': legacy mountpoint\n"), 7359 zfs_get_name(zhp)); 7360 (void) fprintf(stderr, gettext("use umount(8) " 7361 "to unmount this filesystem\n")); 7362 } else { 7363 ret = zfs_unmountall(zhp, flags); 7364 } 7365 } 7366 7367 out: 7368 zfs_close(zhp); 7369 7370 return (ret != 0); 7371 } 7372 7373 /* 7374 * Generic callback for unsharing or unmounting a filesystem. 7375 */ 7376 static int 7377 unshare_unmount(int op, int argc, char **argv) 7378 { 7379 int do_all = 0; 7380 int flags = 0; 7381 int ret = 0; 7382 int c; 7383 zfs_handle_t *zhp; 7384 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 7385 char sharesmb[ZFS_MAXPROPLEN]; 7386 7387 /* check options */ 7388 while ((c = getopt(argc, argv, op == OP_SHARE ? ":a" : "afu")) != -1) { 7389 switch (c) { 7390 case 'a': 7391 do_all = 1; 7392 break; 7393 case 'f': 7394 flags |= MS_FORCE; 7395 break; 7396 case 'u': 7397 flags |= MS_CRYPT; 7398 break; 7399 case ':': 7400 (void) fprintf(stderr, gettext("missing argument for " 7401 "'%c' option\n"), optopt); 7402 usage(B_FALSE); 7403 break; 7404 case '?': 7405 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7406 optopt); 7407 usage(B_FALSE); 7408 } 7409 } 7410 7411 argc -= optind; 7412 argv += optind; 7413 7414 if (do_all) { 7415 /* 7416 * We could make use of zfs_for_each() to walk all datasets in 7417 * the system, but this would be very inefficient, especially 7418 * since we would have to linearly search /proc/self/mounts for 7419 * each one. Instead, do one pass through /proc/self/mounts 7420 * looking for zfs entries and call zfs_unmount() for each one. 7421 * 7422 * Things get a little tricky if the administrator has created 7423 * mountpoints beneath other ZFS filesystems. In this case, we 7424 * have to unmount the deepest filesystems first. To accomplish 7425 * this, we place all the mountpoints in an AVL tree sorted by 7426 * the special type (dataset name), and walk the result in 7427 * reverse to make sure to get any snapshots first. 7428 */ 7429 FILE *mnttab; 7430 struct mnttab entry; 7431 uu_avl_pool_t *pool; 7432 uu_avl_t *tree = NULL; 7433 unshare_unmount_node_t *node; 7434 uu_avl_index_t idx; 7435 uu_avl_walk_t *walk; 7436 enum sa_protocol *protocol = NULL, 7437 single_protocol[] = {SA_NO_PROTOCOL, SA_NO_PROTOCOL}; 7438 7439 if (op == OP_SHARE && argc > 0) { 7440 *single_protocol = sa_protocol_decode(argv[0]); 7441 protocol = single_protocol; 7442 argc--; 7443 argv++; 7444 } 7445 7446 if (argc != 0) { 7447 (void) fprintf(stderr, gettext("too many arguments\n")); 7448 usage(B_FALSE); 7449 } 7450 7451 if (((pool = uu_avl_pool_create("unmount_pool", 7452 sizeof (unshare_unmount_node_t), 7453 offsetof(unshare_unmount_node_t, un_avlnode), 7454 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 7455 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 7456 nomem(); 7457 7458 if ((mnttab = fopen(MNTTAB, "re")) == NULL) { 7459 uu_avl_destroy(tree); 7460 uu_avl_pool_destroy(pool); 7461 return (ENOENT); 7462 } 7463 7464 while (getmntent(mnttab, &entry) == 0) { 7465 7466 /* ignore non-ZFS entries */ 7467 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 7468 continue; 7469 7470 /* ignore snapshots */ 7471 if (strchr(entry.mnt_special, '@') != NULL) 7472 continue; 7473 7474 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 7475 ZFS_TYPE_FILESYSTEM)) == NULL) { 7476 ret = 1; 7477 continue; 7478 } 7479 7480 /* 7481 * Ignore datasets that are excluded/restricted by 7482 * parent pool name. 7483 */ 7484 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 7485 zfs_close(zhp); 7486 continue; 7487 } 7488 7489 switch (op) { 7490 case OP_SHARE: 7491 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 7492 nfs_mnt_prop, 7493 sizeof (nfs_mnt_prop), 7494 NULL, NULL, 0, B_FALSE) == 0); 7495 if (strcmp(nfs_mnt_prop, "off") != 0) 7496 break; 7497 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 7498 nfs_mnt_prop, 7499 sizeof (nfs_mnt_prop), 7500 NULL, NULL, 0, B_FALSE) == 0); 7501 if (strcmp(nfs_mnt_prop, "off") == 0) 7502 continue; 7503 break; 7504 case OP_MOUNT: 7505 /* Ignore legacy mounts */ 7506 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 7507 nfs_mnt_prop, 7508 sizeof (nfs_mnt_prop), 7509 NULL, NULL, 0, B_FALSE) == 0); 7510 if (strcmp(nfs_mnt_prop, "legacy") == 0) 7511 continue; 7512 /* Ignore canmount=noauto mounts */ 7513 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 7514 ZFS_CANMOUNT_NOAUTO) 7515 continue; 7516 break; 7517 default: 7518 break; 7519 } 7520 7521 node = safe_malloc(sizeof (unshare_unmount_node_t)); 7522 node->un_zhp = zhp; 7523 node->un_mountp = safe_strdup(entry.mnt_mountp); 7524 7525 uu_avl_node_init(node, &node->un_avlnode, pool); 7526 7527 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 7528 uu_avl_insert(tree, node, idx); 7529 } else { 7530 zfs_close(node->un_zhp); 7531 free(node->un_mountp); 7532 free(node); 7533 } 7534 } 7535 (void) fclose(mnttab); 7536 7537 /* 7538 * Walk the AVL tree in reverse, unmounting each filesystem and 7539 * removing it from the AVL tree in the process. 7540 */ 7541 if ((walk = uu_avl_walk_start(tree, 7542 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 7543 nomem(); 7544 7545 while ((node = uu_avl_walk_next(walk)) != NULL) { 7546 const char *mntarg = NULL; 7547 7548 uu_avl_remove(tree, node); 7549 switch (op) { 7550 case OP_SHARE: 7551 if (zfs_unshare(node->un_zhp, 7552 node->un_mountp, protocol) != 0) 7553 ret = 1; 7554 break; 7555 7556 case OP_MOUNT: 7557 if (zfs_unmount(node->un_zhp, 7558 mntarg, flags) != 0) 7559 ret = 1; 7560 break; 7561 } 7562 7563 zfs_close(node->un_zhp); 7564 free(node->un_mountp); 7565 free(node); 7566 } 7567 7568 if (op == OP_SHARE) 7569 zfs_commit_shares(protocol); 7570 7571 uu_avl_walk_end(walk); 7572 uu_avl_destroy(tree); 7573 uu_avl_pool_destroy(pool); 7574 7575 } else { 7576 if (argc != 1) { 7577 if (argc == 0) 7578 (void) fprintf(stderr, 7579 gettext("missing filesystem argument\n")); 7580 else 7581 (void) fprintf(stderr, 7582 gettext("too many arguments\n")); 7583 usage(B_FALSE); 7584 } 7585 7586 /* 7587 * We have an argument, but it may be a full path or a ZFS 7588 * filesystem. Pass full paths off to unmount_path() (shared by 7589 * manual_unmount), otherwise open the filesystem and pass to 7590 * zfs_unmount(). 7591 */ 7592 if (argv[0][0] == '/') 7593 return (unshare_unmount_path(op, argv[0], 7594 flags, B_FALSE)); 7595 7596 if ((zhp = zfs_open(g_zfs, argv[0], 7597 ZFS_TYPE_FILESYSTEM)) == NULL) 7598 return (1); 7599 7600 verify(zfs_prop_get(zhp, op == OP_SHARE ? 7601 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 7602 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 7603 NULL, 0, B_FALSE) == 0); 7604 7605 switch (op) { 7606 case OP_SHARE: 7607 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 7608 nfs_mnt_prop, 7609 sizeof (nfs_mnt_prop), 7610 NULL, NULL, 0, B_FALSE) == 0); 7611 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 7612 sharesmb, sizeof (sharesmb), NULL, NULL, 7613 0, B_FALSE) == 0); 7614 7615 if (strcmp(nfs_mnt_prop, "off") == 0 && 7616 strcmp(sharesmb, "off") == 0) { 7617 (void) fprintf(stderr, gettext("cannot " 7618 "unshare '%s': legacy share\n"), 7619 zfs_get_name(zhp)); 7620 (void) fprintf(stderr, gettext("use " 7621 "exports(5) or smb.conf(5) to unshare " 7622 "this filesystem\n")); 7623 ret = 1; 7624 } else if (!zfs_is_shared(zhp, NULL, NULL)) { 7625 (void) fprintf(stderr, gettext("cannot " 7626 "unshare '%s': not currently " 7627 "shared\n"), zfs_get_name(zhp)); 7628 ret = 1; 7629 } else if (zfs_unshareall(zhp, NULL) != 0) { 7630 ret = 1; 7631 } 7632 break; 7633 7634 case OP_MOUNT: 7635 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 7636 (void) fprintf(stderr, gettext("cannot " 7637 "unmount '%s': legacy " 7638 "mountpoint\n"), zfs_get_name(zhp)); 7639 (void) fprintf(stderr, gettext("use " 7640 "umount(8) to unmount this " 7641 "filesystem\n")); 7642 ret = 1; 7643 } else if (!zfs_is_mounted(zhp, NULL)) { 7644 (void) fprintf(stderr, gettext("cannot " 7645 "unmount '%s': not currently " 7646 "mounted\n"), 7647 zfs_get_name(zhp)); 7648 ret = 1; 7649 } else if (zfs_unmountall(zhp, flags) != 0) { 7650 ret = 1; 7651 } 7652 break; 7653 } 7654 7655 zfs_close(zhp); 7656 } 7657 7658 return (ret); 7659 } 7660 7661 /* 7662 * zfs unmount [-fu] -a 7663 * zfs unmount [-fu] filesystem 7664 * 7665 * Unmount all filesystems, or a specific ZFS filesystem. 7666 */ 7667 static int 7668 zfs_do_unmount(int argc, char **argv) 7669 { 7670 return (unshare_unmount(OP_MOUNT, argc, argv)); 7671 } 7672 7673 /* 7674 * zfs unshare -a 7675 * zfs unshare filesystem 7676 * 7677 * Unshare all filesystems, or a specific ZFS filesystem. 7678 */ 7679 static int 7680 zfs_do_unshare(int argc, char **argv) 7681 { 7682 return (unshare_unmount(OP_SHARE, argc, argv)); 7683 } 7684 7685 static int 7686 find_command_idx(const char *command, int *idx) 7687 { 7688 int i; 7689 7690 for (i = 0; i < NCOMMAND; i++) { 7691 if (command_table[i].name == NULL) 7692 continue; 7693 7694 if (strcmp(command, command_table[i].name) == 0) { 7695 *idx = i; 7696 return (0); 7697 } 7698 } 7699 return (1); 7700 } 7701 7702 static int 7703 zfs_do_diff(int argc, char **argv) 7704 { 7705 zfs_handle_t *zhp; 7706 int flags = 0; 7707 char *tosnap = NULL; 7708 char *fromsnap = NULL; 7709 char *atp, *copy; 7710 int err = 0; 7711 int c; 7712 struct sigaction sa; 7713 7714 while ((c = getopt(argc, argv, "FHth")) != -1) { 7715 switch (c) { 7716 case 'F': 7717 flags |= ZFS_DIFF_CLASSIFY; 7718 break; 7719 case 'H': 7720 flags |= ZFS_DIFF_PARSEABLE; 7721 break; 7722 case 't': 7723 flags |= ZFS_DIFF_TIMESTAMP; 7724 break; 7725 case 'h': 7726 flags |= ZFS_DIFF_NO_MANGLE; 7727 break; 7728 default: 7729 (void) fprintf(stderr, 7730 gettext("invalid option '%c'\n"), optopt); 7731 usage(B_FALSE); 7732 } 7733 } 7734 7735 argc -= optind; 7736 argv += optind; 7737 7738 if (argc < 1) { 7739 (void) fprintf(stderr, 7740 gettext("must provide at least one snapshot name\n")); 7741 usage(B_FALSE); 7742 } 7743 7744 if (argc > 2) { 7745 (void) fprintf(stderr, gettext("too many arguments\n")); 7746 usage(B_FALSE); 7747 } 7748 7749 fromsnap = argv[0]; 7750 tosnap = (argc == 2) ? argv[1] : NULL; 7751 7752 copy = NULL; 7753 if (*fromsnap != '@') 7754 copy = strdup(fromsnap); 7755 else if (tosnap) 7756 copy = strdup(tosnap); 7757 if (copy == NULL) 7758 usage(B_FALSE); 7759 7760 if ((atp = strchr(copy, '@')) != NULL) 7761 *atp = '\0'; 7762 7763 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) { 7764 free(copy); 7765 return (1); 7766 } 7767 free(copy); 7768 7769 /* 7770 * Ignore SIGPIPE so that the library can give us 7771 * information on any failure 7772 */ 7773 if (sigemptyset(&sa.sa_mask) == -1) { 7774 err = errno; 7775 goto out; 7776 } 7777 sa.sa_flags = 0; 7778 sa.sa_handler = SIG_IGN; 7779 if (sigaction(SIGPIPE, &sa, NULL) == -1) { 7780 err = errno; 7781 goto out; 7782 } 7783 7784 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7785 out: 7786 zfs_close(zhp); 7787 7788 return (err != 0); 7789 } 7790 7791 /* 7792 * zfs bookmark <fs@source>|<fs#source> <fs#bookmark> 7793 * 7794 * Creates a bookmark with the given name from the source snapshot 7795 * or creates a copy of an existing source bookmark. 7796 */ 7797 static int 7798 zfs_do_bookmark(int argc, char **argv) 7799 { 7800 char *source, *bookname; 7801 char expbuf[ZFS_MAX_DATASET_NAME_LEN]; 7802 int source_type; 7803 nvlist_t *nvl; 7804 int ret = 0; 7805 int c; 7806 7807 /* check options */ 7808 while ((c = getopt(argc, argv, "")) != -1) { 7809 switch (c) { 7810 case '?': 7811 (void) fprintf(stderr, 7812 gettext("invalid option '%c'\n"), optopt); 7813 goto usage; 7814 } 7815 } 7816 7817 argc -= optind; 7818 argv += optind; 7819 7820 /* check number of arguments */ 7821 if (argc < 1) { 7822 (void) fprintf(stderr, gettext("missing source argument\n")); 7823 goto usage; 7824 } 7825 if (argc < 2) { 7826 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7827 goto usage; 7828 } 7829 7830 source = argv[0]; 7831 bookname = argv[1]; 7832 7833 if (strchr(source, '@') == NULL && strchr(source, '#') == NULL) { 7834 (void) fprintf(stderr, 7835 gettext("invalid source name '%s': " 7836 "must contain a '@' or '#'\n"), source); 7837 goto usage; 7838 } 7839 if (strchr(bookname, '#') == NULL) { 7840 (void) fprintf(stderr, 7841 gettext("invalid bookmark name '%s': " 7842 "must contain a '#'\n"), bookname); 7843 goto usage; 7844 } 7845 7846 /* 7847 * expand source or bookname to full path: 7848 * one of them may be specified as short name 7849 */ 7850 { 7851 char **expand; 7852 char *source_short, *bookname_short; 7853 source_short = strpbrk(source, "@#"); 7854 bookname_short = strpbrk(bookname, "#"); 7855 if (source_short == source && 7856 bookname_short == bookname) { 7857 (void) fprintf(stderr, gettext( 7858 "either source or bookmark must be specified as " 7859 "full dataset paths")); 7860 goto usage; 7861 } else if (source_short != source && 7862 bookname_short != bookname) { 7863 expand = NULL; 7864 } else if (source_short != source) { 7865 strlcpy(expbuf, source, sizeof (expbuf)); 7866 expand = &bookname; 7867 } else if (bookname_short != bookname) { 7868 strlcpy(expbuf, bookname, sizeof (expbuf)); 7869 expand = &source; 7870 } else { 7871 abort(); 7872 } 7873 if (expand != NULL) { 7874 *strpbrk(expbuf, "@#") = '\0'; /* dataset name in buf */ 7875 (void) strlcat(expbuf, *expand, sizeof (expbuf)); 7876 *expand = expbuf; 7877 } 7878 } 7879 7880 /* determine source type */ 7881 switch (*strpbrk(source, "@#")) { 7882 case '@': source_type = ZFS_TYPE_SNAPSHOT; break; 7883 case '#': source_type = ZFS_TYPE_BOOKMARK; break; 7884 default: abort(); 7885 } 7886 7887 /* test the source exists */ 7888 zfs_handle_t *zhp; 7889 zhp = zfs_open(g_zfs, source, source_type); 7890 if (zhp == NULL) 7891 goto usage; 7892 zfs_close(zhp); 7893 7894 nvl = fnvlist_alloc(); 7895 fnvlist_add_string(nvl, bookname, source); 7896 ret = lzc_bookmark(nvl, NULL); 7897 fnvlist_free(nvl); 7898 7899 if (ret != 0) { 7900 const char *err_msg = NULL; 7901 char errbuf[1024]; 7902 7903 (void) snprintf(errbuf, sizeof (errbuf), 7904 dgettext(TEXT_DOMAIN, 7905 "cannot create bookmark '%s'"), bookname); 7906 7907 switch (ret) { 7908 case EXDEV: 7909 err_msg = "bookmark is in a different pool"; 7910 break; 7911 case ZFS_ERR_BOOKMARK_SOURCE_NOT_ANCESTOR: 7912 err_msg = "source is not an ancestor of the " 7913 "new bookmark's dataset"; 7914 break; 7915 case EEXIST: 7916 err_msg = "bookmark exists"; 7917 break; 7918 case EINVAL: 7919 err_msg = "invalid argument"; 7920 break; 7921 case ENOTSUP: 7922 err_msg = "bookmark feature not enabled"; 7923 break; 7924 case ENOSPC: 7925 err_msg = "out of space"; 7926 break; 7927 case ENOENT: 7928 err_msg = "dataset does not exist"; 7929 break; 7930 default: 7931 (void) zfs_standard_error(g_zfs, ret, errbuf); 7932 break; 7933 } 7934 if (err_msg != NULL) { 7935 (void) fprintf(stderr, "%s: %s\n", errbuf, 7936 dgettext(TEXT_DOMAIN, err_msg)); 7937 } 7938 } 7939 7940 return (ret != 0); 7941 7942 usage: 7943 usage(B_FALSE); 7944 return (-1); 7945 } 7946 7947 static int 7948 zfs_do_channel_program(int argc, char **argv) 7949 { 7950 int ret, fd, c; 7951 size_t progsize, progread; 7952 nvlist_t *outnvl = NULL; 7953 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7954 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7955 boolean_t sync_flag = B_TRUE, json_output = B_FALSE; 7956 zpool_handle_t *zhp; 7957 7958 /* check options */ 7959 while ((c = getopt(argc, argv, "nt:m:j")) != -1) { 7960 switch (c) { 7961 case 't': 7962 case 'm': { 7963 uint64_t arg; 7964 char *endp; 7965 7966 errno = 0; 7967 arg = strtoull(optarg, &endp, 0); 7968 if (errno != 0 || *endp != '\0') { 7969 (void) fprintf(stderr, gettext( 7970 "invalid argument " 7971 "'%s': expected integer\n"), optarg); 7972 goto usage; 7973 } 7974 7975 if (c == 't') { 7976 instrlimit = arg; 7977 } else { 7978 ASSERT3U(c, ==, 'm'); 7979 memlimit = arg; 7980 } 7981 break; 7982 } 7983 case 'n': { 7984 sync_flag = B_FALSE; 7985 break; 7986 } 7987 case 'j': { 7988 json_output = B_TRUE; 7989 break; 7990 } 7991 case '?': 7992 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7993 optopt); 7994 goto usage; 7995 } 7996 } 7997 7998 argc -= optind; 7999 argv += optind; 8000 8001 if (argc < 2) { 8002 (void) fprintf(stderr, 8003 gettext("invalid number of arguments\n")); 8004 goto usage; 8005 } 8006 8007 const char *poolname = argv[0]; 8008 const char *filename = argv[1]; 8009 if (strcmp(filename, "-") == 0) { 8010 fd = 0; 8011 filename = "standard input"; 8012 } else if ((fd = open(filename, O_RDONLY)) < 0) { 8013 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 8014 filename, strerror(errno)); 8015 return (1); 8016 } 8017 8018 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 8019 (void) fprintf(stderr, gettext("cannot open pool '%s'\n"), 8020 poolname); 8021 if (fd != 0) 8022 (void) close(fd); 8023 return (1); 8024 } 8025 zpool_close(zhp); 8026 8027 /* 8028 * Read in the channel program, expanding the program buffer as 8029 * necessary. 8030 */ 8031 progread = 0; 8032 progsize = 1024; 8033 char *progbuf = safe_malloc(progsize); 8034 do { 8035 ret = read(fd, progbuf + progread, progsize - progread); 8036 progread += ret; 8037 if (progread == progsize && ret > 0) { 8038 progsize *= 2; 8039 progbuf = safe_realloc(progbuf, progsize); 8040 } 8041 } while (ret > 0); 8042 8043 if (fd != 0) 8044 (void) close(fd); 8045 if (ret < 0) { 8046 free(progbuf); 8047 (void) fprintf(stderr, 8048 gettext("cannot read '%s': %s\n"), 8049 filename, strerror(errno)); 8050 return (1); 8051 } 8052 progbuf[progread] = '\0'; 8053 8054 /* 8055 * Any remaining arguments are passed as arguments to the lua script as 8056 * a string array: 8057 * { 8058 * "argv" -> [ "arg 1", ... "arg n" ], 8059 * } 8060 */ 8061 nvlist_t *argnvl = fnvlist_alloc(); 8062 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, 8063 (const char **)argv + 2, argc - 2); 8064 8065 if (sync_flag) { 8066 ret = lzc_channel_program(poolname, progbuf, 8067 instrlimit, memlimit, argnvl, &outnvl); 8068 } else { 8069 ret = lzc_channel_program_nosync(poolname, progbuf, 8070 instrlimit, memlimit, argnvl, &outnvl); 8071 } 8072 8073 if (ret != 0) { 8074 /* 8075 * On error, report the error message handed back by lua if one 8076 * exists. Otherwise, generate an appropriate error message, 8077 * falling back on strerror() for an unexpected return code. 8078 */ 8079 const char *errstring = NULL; 8080 const char *msg = gettext("Channel program execution failed"); 8081 uint64_t instructions = 0; 8082 if (outnvl != NULL && nvlist_exists(outnvl, ZCP_RET_ERROR)) { 8083 char *es = NULL; 8084 (void) nvlist_lookup_string(outnvl, 8085 ZCP_RET_ERROR, &es); 8086 if (es == NULL) 8087 errstring = strerror(ret); 8088 else 8089 errstring = es; 8090 if (ret == ETIME) { 8091 (void) nvlist_lookup_uint64(outnvl, 8092 ZCP_ARG_INSTRLIMIT, &instructions); 8093 } 8094 } else { 8095 switch (ret) { 8096 case EINVAL: 8097 errstring = 8098 "Invalid instruction or memory limit."; 8099 break; 8100 case ENOMEM: 8101 errstring = "Return value too large."; 8102 break; 8103 case ENOSPC: 8104 errstring = "Memory limit exhausted."; 8105 break; 8106 case ETIME: 8107 errstring = "Timed out."; 8108 break; 8109 case EPERM: 8110 errstring = "Permission denied. Channel " 8111 "programs must be run as root."; 8112 break; 8113 default: 8114 (void) zfs_standard_error(g_zfs, ret, msg); 8115 } 8116 } 8117 if (errstring != NULL) 8118 (void) fprintf(stderr, "%s:\n%s\n", msg, errstring); 8119 8120 if (ret == ETIME && instructions != 0) 8121 (void) fprintf(stderr, 8122 gettext("%llu Lua instructions\n"), 8123 (u_longlong_t)instructions); 8124 } else { 8125 if (json_output) { 8126 (void) nvlist_print_json(stdout, outnvl); 8127 } else if (nvlist_empty(outnvl)) { 8128 (void) fprintf(stdout, gettext("Channel program fully " 8129 "executed and did not produce output.\n")); 8130 } else { 8131 (void) fprintf(stdout, gettext("Channel program fully " 8132 "executed and produced output:\n")); 8133 dump_nvlist(outnvl, 4); 8134 } 8135 } 8136 8137 free(progbuf); 8138 fnvlist_free(outnvl); 8139 fnvlist_free(argnvl); 8140 return (ret != 0); 8141 8142 usage: 8143 usage(B_FALSE); 8144 return (-1); 8145 } 8146 8147 8148 typedef struct loadkey_cbdata { 8149 boolean_t cb_loadkey; 8150 boolean_t cb_recursive; 8151 boolean_t cb_noop; 8152 char *cb_keylocation; 8153 uint64_t cb_numfailed; 8154 uint64_t cb_numattempted; 8155 } loadkey_cbdata_t; 8156 8157 static int 8158 load_key_callback(zfs_handle_t *zhp, void *data) 8159 { 8160 int ret; 8161 boolean_t is_encroot; 8162 loadkey_cbdata_t *cb = data; 8163 uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 8164 8165 /* 8166 * If we are working recursively, we want to skip loading / unloading 8167 * keys for non-encryption roots and datasets whose keys are already 8168 * in the desired end-state. 8169 */ 8170 if (cb->cb_recursive) { 8171 ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); 8172 if (ret != 0) 8173 return (ret); 8174 if (!is_encroot) 8175 return (0); 8176 8177 if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) || 8178 (!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE)) 8179 return (0); 8180 } 8181 8182 cb->cb_numattempted++; 8183 8184 if (cb->cb_loadkey) 8185 ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation); 8186 else 8187 ret = zfs_crypto_unload_key(zhp); 8188 8189 if (ret != 0) { 8190 cb->cb_numfailed++; 8191 return (ret); 8192 } 8193 8194 return (0); 8195 } 8196 8197 static int 8198 load_unload_keys(int argc, char **argv, boolean_t loadkey) 8199 { 8200 int c, ret = 0, flags = 0; 8201 boolean_t do_all = B_FALSE; 8202 loadkey_cbdata_t cb = { 0 }; 8203 8204 cb.cb_loadkey = loadkey; 8205 8206 while ((c = getopt(argc, argv, "anrL:")) != -1) { 8207 /* noop and alternate keylocations only apply to zfs load-key */ 8208 if (loadkey) { 8209 switch (c) { 8210 case 'n': 8211 cb.cb_noop = B_TRUE; 8212 continue; 8213 case 'L': 8214 cb.cb_keylocation = optarg; 8215 continue; 8216 default: 8217 break; 8218 } 8219 } 8220 8221 switch (c) { 8222 case 'a': 8223 do_all = B_TRUE; 8224 cb.cb_recursive = B_TRUE; 8225 break; 8226 case 'r': 8227 flags |= ZFS_ITER_RECURSE; 8228 cb.cb_recursive = B_TRUE; 8229 break; 8230 default: 8231 (void) fprintf(stderr, 8232 gettext("invalid option '%c'\n"), optopt); 8233 usage(B_FALSE); 8234 } 8235 } 8236 8237 argc -= optind; 8238 argv += optind; 8239 8240 if (!do_all && argc == 0) { 8241 (void) fprintf(stderr, 8242 gettext("Missing dataset argument or -a option\n")); 8243 usage(B_FALSE); 8244 } 8245 8246 if (do_all && argc != 0) { 8247 (void) fprintf(stderr, 8248 gettext("Cannot specify dataset with -a option\n")); 8249 usage(B_FALSE); 8250 } 8251 8252 if (cb.cb_recursive && cb.cb_keylocation != NULL && 8253 strcmp(cb.cb_keylocation, "prompt") != 0) { 8254 (void) fprintf(stderr, gettext("alternate keylocation may only " 8255 "be 'prompt' with -r or -a\n")); 8256 usage(B_FALSE); 8257 } 8258 8259 ret = zfs_for_each(argc, argv, flags, 8260 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, NULL, NULL, 0, 8261 load_key_callback, &cb); 8262 8263 if (cb.cb_noop || (cb.cb_recursive && cb.cb_numattempted != 0)) { 8264 (void) printf(gettext("%llu / %llu key(s) successfully %s\n"), 8265 (u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed), 8266 (u_longlong_t)cb.cb_numattempted, 8267 loadkey ? (cb.cb_noop ? "verified" : "loaded") : 8268 "unloaded"); 8269 } 8270 8271 if (cb.cb_numfailed != 0) 8272 ret = -1; 8273 8274 return (ret); 8275 } 8276 8277 static int 8278 zfs_do_load_key(int argc, char **argv) 8279 { 8280 return (load_unload_keys(argc, argv, B_TRUE)); 8281 } 8282 8283 8284 static int 8285 zfs_do_unload_key(int argc, char **argv) 8286 { 8287 return (load_unload_keys(argc, argv, B_FALSE)); 8288 } 8289 8290 static int 8291 zfs_do_change_key(int argc, char **argv) 8292 { 8293 int c, ret; 8294 uint64_t keystatus; 8295 boolean_t loadkey = B_FALSE, inheritkey = B_FALSE; 8296 zfs_handle_t *zhp = NULL; 8297 nvlist_t *props = fnvlist_alloc(); 8298 8299 while ((c = getopt(argc, argv, "lio:")) != -1) { 8300 switch (c) { 8301 case 'l': 8302 loadkey = B_TRUE; 8303 break; 8304 case 'i': 8305 inheritkey = B_TRUE; 8306 break; 8307 case 'o': 8308 if (!parseprop(props, optarg)) { 8309 nvlist_free(props); 8310 return (1); 8311 } 8312 break; 8313 default: 8314 (void) fprintf(stderr, 8315 gettext("invalid option '%c'\n"), optopt); 8316 usage(B_FALSE); 8317 } 8318 } 8319 8320 if (inheritkey && !nvlist_empty(props)) { 8321 (void) fprintf(stderr, 8322 gettext("Properties not allowed for inheriting\n")); 8323 usage(B_FALSE); 8324 } 8325 8326 argc -= optind; 8327 argv += optind; 8328 8329 if (argc < 1) { 8330 (void) fprintf(stderr, gettext("Missing dataset argument\n")); 8331 usage(B_FALSE); 8332 } 8333 8334 if (argc > 1) { 8335 (void) fprintf(stderr, gettext("Too many arguments\n")); 8336 usage(B_FALSE); 8337 } 8338 8339 zhp = zfs_open(g_zfs, argv[argc - 1], 8340 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 8341 if (zhp == NULL) 8342 usage(B_FALSE); 8343 8344 if (loadkey) { 8345 keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 8346 if (keystatus != ZFS_KEYSTATUS_AVAILABLE) { 8347 ret = zfs_crypto_load_key(zhp, B_FALSE, NULL); 8348 if (ret != 0) { 8349 nvlist_free(props); 8350 zfs_close(zhp); 8351 return (-1); 8352 } 8353 } 8354 8355 /* refresh the properties so the new keystatus is visible */ 8356 zfs_refresh_properties(zhp); 8357 } 8358 8359 ret = zfs_crypto_rewrap(zhp, props, inheritkey); 8360 if (ret != 0) { 8361 nvlist_free(props); 8362 zfs_close(zhp); 8363 return (-1); 8364 } 8365 8366 nvlist_free(props); 8367 zfs_close(zhp); 8368 return (0); 8369 } 8370 8371 /* 8372 * 1) zfs project [-d|-r] <file|directory ...> 8373 * List project ID and inherit flag of file(s) or directories. 8374 * -d: List the directory itself, not its children. 8375 * -r: List subdirectories recursively. 8376 * 8377 * 2) zfs project -C [-k] [-r] <file|directory ...> 8378 * Clear project inherit flag and/or ID on the file(s) or directories. 8379 * -k: Keep the project ID unchanged. If not specified, the project ID 8380 * will be reset as zero. 8381 * -r: Clear on subdirectories recursively. 8382 * 8383 * 3) zfs project -c [-0] [-d|-r] [-p id] <file|directory ...> 8384 * Check project ID and inherit flag on the file(s) or directories, 8385 * report the outliers. 8386 * -0: Print file name followed by a NUL instead of newline. 8387 * -d: Check the directory itself, not its children. 8388 * -p: Specify the referenced ID for comparing with the target file(s) 8389 * or directories' project IDs. If not specified, the target (top) 8390 * directory's project ID will be used as the referenced one. 8391 * -r: Check subdirectories recursively. 8392 * 8393 * 4) zfs project [-p id] [-r] [-s] <file|directory ...> 8394 * Set project ID and/or inherit flag on the file(s) or directories. 8395 * -p: Set the project ID as the given id. 8396 * -r: Set on subdirectories recursively. If not specify "-p" option, 8397 * it will use top-level directory's project ID as the given id, 8398 * then set both project ID and inherit flag on all descendants 8399 * of the top-level directory. 8400 * -s: Set project inherit flag. 8401 */ 8402 static int 8403 zfs_do_project(int argc, char **argv) 8404 { 8405 zfs_project_control_t zpc = { 8406 .zpc_expected_projid = ZFS_INVALID_PROJID, 8407 .zpc_op = ZFS_PROJECT_OP_DEFAULT, 8408 .zpc_dironly = B_FALSE, 8409 .zpc_keep_projid = B_FALSE, 8410 .zpc_newline = B_TRUE, 8411 .zpc_recursive = B_FALSE, 8412 .zpc_set_flag = B_FALSE, 8413 }; 8414 int ret = 0, c; 8415 8416 if (argc < 2) 8417 usage(B_FALSE); 8418 8419 while ((c = getopt(argc, argv, "0Ccdkp:rs")) != -1) { 8420 switch (c) { 8421 case '': 8422 zpc.zpc_newline = B_FALSE; 8423 break; 8424 case 'C': 8425 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 8426 (void) fprintf(stderr, gettext("cannot " 8427 "specify '-C' '-c' '-s' together\n")); 8428 usage(B_FALSE); 8429 } 8430 8431 zpc.zpc_op = ZFS_PROJECT_OP_CLEAR; 8432 break; 8433 case 'c': 8434 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 8435 (void) fprintf(stderr, gettext("cannot " 8436 "specify '-C' '-c' '-s' together\n")); 8437 usage(B_FALSE); 8438 } 8439 8440 zpc.zpc_op = ZFS_PROJECT_OP_CHECK; 8441 break; 8442 case 'd': 8443 zpc.zpc_dironly = B_TRUE; 8444 /* overwrite "-r" option */ 8445 zpc.zpc_recursive = B_FALSE; 8446 break; 8447 case 'k': 8448 zpc.zpc_keep_projid = B_TRUE; 8449 break; 8450 case 'p': { 8451 char *endptr; 8452 8453 errno = 0; 8454 zpc.zpc_expected_projid = strtoull(optarg, &endptr, 0); 8455 if (errno != 0 || *endptr != '\0') { 8456 (void) fprintf(stderr, 8457 gettext("project ID must be less than " 8458 "%u\n"), UINT32_MAX); 8459 usage(B_FALSE); 8460 } 8461 if (zpc.zpc_expected_projid >= UINT32_MAX) { 8462 (void) fprintf(stderr, 8463 gettext("invalid project ID\n")); 8464 usage(B_FALSE); 8465 } 8466 break; 8467 } 8468 case 'r': 8469 zpc.zpc_recursive = B_TRUE; 8470 /* overwrite "-d" option */ 8471 zpc.zpc_dironly = B_FALSE; 8472 break; 8473 case 's': 8474 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 8475 (void) fprintf(stderr, gettext("cannot " 8476 "specify '-C' '-c' '-s' together\n")); 8477 usage(B_FALSE); 8478 } 8479 8480 zpc.zpc_set_flag = B_TRUE; 8481 zpc.zpc_op = ZFS_PROJECT_OP_SET; 8482 break; 8483 default: 8484 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 8485 optopt); 8486 usage(B_FALSE); 8487 } 8488 } 8489 8490 if (zpc.zpc_op == ZFS_PROJECT_OP_DEFAULT) { 8491 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) 8492 zpc.zpc_op = ZFS_PROJECT_OP_SET; 8493 else 8494 zpc.zpc_op = ZFS_PROJECT_OP_LIST; 8495 } 8496 8497 switch (zpc.zpc_op) { 8498 case ZFS_PROJECT_OP_LIST: 8499 if (zpc.zpc_keep_projid) { 8500 (void) fprintf(stderr, 8501 gettext("'-k' is only valid together with '-C'\n")); 8502 usage(B_FALSE); 8503 } 8504 if (!zpc.zpc_newline) { 8505 (void) fprintf(stderr, 8506 gettext("'-0' is only valid together with '-c'\n")); 8507 usage(B_FALSE); 8508 } 8509 break; 8510 case ZFS_PROJECT_OP_CHECK: 8511 if (zpc.zpc_keep_projid) { 8512 (void) fprintf(stderr, 8513 gettext("'-k' is only valid together with '-C'\n")); 8514 usage(B_FALSE); 8515 } 8516 break; 8517 case ZFS_PROJECT_OP_CLEAR: 8518 if (zpc.zpc_dironly) { 8519 (void) fprintf(stderr, 8520 gettext("'-d' is useless together with '-C'\n")); 8521 usage(B_FALSE); 8522 } 8523 if (!zpc.zpc_newline) { 8524 (void) fprintf(stderr, 8525 gettext("'-0' is only valid together with '-c'\n")); 8526 usage(B_FALSE); 8527 } 8528 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) { 8529 (void) fprintf(stderr, 8530 gettext("'-p' is useless together with '-C'\n")); 8531 usage(B_FALSE); 8532 } 8533 break; 8534 case ZFS_PROJECT_OP_SET: 8535 if (zpc.zpc_dironly) { 8536 (void) fprintf(stderr, 8537 gettext("'-d' is useless for set project ID and/or " 8538 "inherit flag\n")); 8539 usage(B_FALSE); 8540 } 8541 if (zpc.zpc_keep_projid) { 8542 (void) fprintf(stderr, 8543 gettext("'-k' is only valid together with '-C'\n")); 8544 usage(B_FALSE); 8545 } 8546 if (!zpc.zpc_newline) { 8547 (void) fprintf(stderr, 8548 gettext("'-0' is only valid together with '-c'\n")); 8549 usage(B_FALSE); 8550 } 8551 break; 8552 default: 8553 ASSERT(0); 8554 break; 8555 } 8556 8557 argv += optind; 8558 argc -= optind; 8559 if (argc == 0) { 8560 (void) fprintf(stderr, 8561 gettext("missing file or directory target(s)\n")); 8562 usage(B_FALSE); 8563 } 8564 8565 for (int i = 0; i < argc; i++) { 8566 int err; 8567 8568 err = zfs_project_handle(argv[i], &zpc); 8569 if (err && !ret) 8570 ret = err; 8571 } 8572 8573 return (ret); 8574 } 8575 8576 static int 8577 zfs_do_wait(int argc, char **argv) 8578 { 8579 boolean_t enabled[ZFS_WAIT_NUM_ACTIVITIES]; 8580 int error = 0, i; 8581 int c; 8582 8583 /* By default, wait for all types of activity. */ 8584 for (i = 0; i < ZFS_WAIT_NUM_ACTIVITIES; i++) 8585 enabled[i] = B_TRUE; 8586 8587 while ((c = getopt(argc, argv, "t:")) != -1) { 8588 switch (c) { 8589 case 't': 8590 /* Reset activities array */ 8591 memset(&enabled, 0, sizeof (enabled)); 8592 8593 for (char *tok; (tok = strsep(&optarg, ",")); ) { 8594 static const char *const col_subopts[ 8595 ZFS_WAIT_NUM_ACTIVITIES] = { "deleteq" }; 8596 8597 for (i = 0; i < ARRAY_SIZE(col_subopts); ++i) 8598 if (strcmp(tok, col_subopts[i]) == 0) { 8599 enabled[i] = B_TRUE; 8600 goto found; 8601 } 8602 8603 (void) fprintf(stderr, 8604 gettext("invalid activity '%s'\n"), tok); 8605 usage(B_FALSE); 8606 found:; 8607 } 8608 break; 8609 case '?': 8610 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 8611 optopt); 8612 usage(B_FALSE); 8613 } 8614 } 8615 8616 argv += optind; 8617 argc -= optind; 8618 if (argc < 1) { 8619 (void) fprintf(stderr, gettext("missing 'filesystem' " 8620 "argument\n")); 8621 usage(B_FALSE); 8622 } 8623 if (argc > 1) { 8624 (void) fprintf(stderr, gettext("too many arguments\n")); 8625 usage(B_FALSE); 8626 } 8627 8628 zfs_handle_t *zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM); 8629 if (zhp == NULL) 8630 return (1); 8631 8632 for (;;) { 8633 boolean_t missing = B_FALSE; 8634 boolean_t any_waited = B_FALSE; 8635 8636 for (int i = 0; i < ZFS_WAIT_NUM_ACTIVITIES; i++) { 8637 boolean_t waited; 8638 8639 if (!enabled[i]) 8640 continue; 8641 8642 error = zfs_wait_status(zhp, i, &missing, &waited); 8643 if (error != 0 || missing) 8644 break; 8645 8646 any_waited = (any_waited || waited); 8647 } 8648 8649 if (error != 0 || missing || !any_waited) 8650 break; 8651 } 8652 8653 zfs_close(zhp); 8654 8655 return (error); 8656 } 8657 8658 /* 8659 * Display version message 8660 */ 8661 static int 8662 zfs_do_version(int argc, char **argv) 8663 { 8664 (void) argc, (void) argv; 8665 return (zfs_version_print() != 0); 8666 } 8667 8668 int 8669 main(int argc, char **argv) 8670 { 8671 int ret = 0; 8672 int i = 0; 8673 const char *cmdname; 8674 char **newargv; 8675 extern char **environ; 8676 8677 (void) setlocale(LC_ALL, ""); 8678 (void) setlocale(LC_NUMERIC, "C"); 8679 (void) textdomain(TEXT_DOMAIN); 8680 8681 opterr = 0; 8682 8683 /* 8684 * Make sure the user has specified some command. 8685 */ 8686 if (argc < 2) { 8687 (void) fprintf(stderr, gettext("missing command\n")); 8688 usage(B_FALSE); 8689 } 8690 8691 cmdname = argv[1]; 8692 8693 /* 8694 * The 'umount' command is an alias for 'unmount' 8695 */ 8696 if (strcmp(cmdname, "umount") == 0) 8697 cmdname = "unmount"; 8698 8699 /* 8700 * The 'recv' command is an alias for 'receive' 8701 */ 8702 if (strcmp(cmdname, "recv") == 0) 8703 cmdname = "receive"; 8704 8705 /* 8706 * The 'snap' command is an alias for 'snapshot' 8707 */ 8708 if (strcmp(cmdname, "snap") == 0) 8709 cmdname = "snapshot"; 8710 8711 /* 8712 * Special case '-?' 8713 */ 8714 if ((strcmp(cmdname, "-?") == 0) || 8715 (strcmp(cmdname, "--help") == 0)) 8716 usage(B_TRUE); 8717 8718 /* 8719 * Special case '-V|--version' 8720 */ 8721 if ((strcmp(cmdname, "-V") == 0) || (strcmp(cmdname, "--version") == 0)) 8722 return (zfs_do_version(argc, argv)); 8723 8724 if ((g_zfs = libzfs_init()) == NULL) { 8725 (void) fprintf(stderr, "%s\n", libzfs_error_init(errno)); 8726 return (1); 8727 } 8728 8729 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 8730 8731 libzfs_print_on_error(g_zfs, B_TRUE); 8732 8733 zfs_setproctitle_init(argc, argv, environ); 8734 8735 /* 8736 * Many commands modify input strings for string parsing reasons. 8737 * We create a copy to protect the original argv. 8738 */ 8739 newargv = safe_malloc((argc + 1) * sizeof (newargv[0])); 8740 for (i = 0; i < argc; i++) 8741 newargv[i] = strdup(argv[i]); 8742 newargv[argc] = NULL; 8743 8744 /* 8745 * Run the appropriate command. 8746 */ 8747 libzfs_mnttab_cache(g_zfs, B_TRUE); 8748 if (find_command_idx(cmdname, &i) == 0) { 8749 current_command = &command_table[i]; 8750 ret = command_table[i].func(argc - 1, newargv + 1); 8751 } else if (strchr(cmdname, '=') != NULL) { 8752 verify(find_command_idx("set", &i) == 0); 8753 current_command = &command_table[i]; 8754 ret = command_table[i].func(argc, newargv); 8755 } else { 8756 (void) fprintf(stderr, gettext("unrecognized " 8757 "command '%s'\n"), cmdname); 8758 usage(B_FALSE); 8759 ret = 1; 8760 } 8761 8762 for (i = 0; i < argc; i++) 8763 free(newargv[i]); 8764 free(newargv); 8765 8766 if (ret == 0 && log_history) 8767 (void) zpool_log_history(g_zfs, history_str); 8768 8769 libzfs_fini(g_zfs); 8770 8771 /* 8772 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 8773 * for the purposes of running ::findleaks. 8774 */ 8775 if (getenv("ZFS_ABORT") != NULL) { 8776 (void) printf("dumping core by request\n"); 8777 abort(); 8778 } 8779 8780 return (ret); 8781 } 8782 8783 /* 8784 * zfs zone nsfile filesystem 8785 * 8786 * Add or delete the given dataset to/from the namespace. 8787 */ 8788 #ifdef __linux__ 8789 static int 8790 zfs_do_zone_impl(int argc, char **argv, boolean_t attach) 8791 { 8792 zfs_handle_t *zhp; 8793 int ret; 8794 8795 if (argc < 3) { 8796 (void) fprintf(stderr, gettext("missing argument(s)\n")); 8797 usage(B_FALSE); 8798 } 8799 if (argc > 3) { 8800 (void) fprintf(stderr, gettext("too many arguments\n")); 8801 usage(B_FALSE); 8802 } 8803 8804 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 8805 if (zhp == NULL) 8806 return (1); 8807 8808 ret = (zfs_userns(zhp, argv[1], attach) != 0); 8809 8810 zfs_close(zhp); 8811 return (ret); 8812 } 8813 8814 static int 8815 zfs_do_zone(int argc, char **argv) 8816 { 8817 return (zfs_do_zone_impl(argc, argv, B_TRUE)); 8818 } 8819 8820 static int 8821 zfs_do_unzone(int argc, char **argv) 8822 { 8823 return (zfs_do_zone_impl(argc, argv, B_FALSE)); 8824 } 8825 #endif 8826 8827 #ifdef __FreeBSD__ 8828 #include <sys/jail.h> 8829 #include <jail.h> 8830 /* 8831 * Attach/detach the given dataset to/from the given jail 8832 */ 8833 static int 8834 zfs_do_jail_impl(int argc, char **argv, boolean_t attach) 8835 { 8836 zfs_handle_t *zhp; 8837 int jailid, ret; 8838 8839 /* check number of arguments */ 8840 if (argc < 3) { 8841 (void) fprintf(stderr, gettext("missing argument(s)\n")); 8842 usage(B_FALSE); 8843 } 8844 if (argc > 3) { 8845 (void) fprintf(stderr, gettext("too many arguments\n")); 8846 usage(B_FALSE); 8847 } 8848 8849 jailid = jail_getid(argv[1]); 8850 if (jailid < 0) { 8851 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 8852 usage(B_FALSE); 8853 } 8854 8855 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 8856 if (zhp == NULL) 8857 return (1); 8858 8859 ret = (zfs_jail(zhp, jailid, attach) != 0); 8860 8861 zfs_close(zhp); 8862 return (ret); 8863 } 8864 8865 /* 8866 * zfs jail jailid filesystem 8867 * 8868 * Attach the given dataset to the given jail 8869 */ 8870 static int 8871 zfs_do_jail(int argc, char **argv) 8872 { 8873 return (zfs_do_jail_impl(argc, argv, B_TRUE)); 8874 } 8875 8876 /* 8877 * zfs unjail jailid filesystem 8878 * 8879 * Detach the given dataset from the given jail 8880 */ 8881 static int 8882 zfs_do_unjail(int argc, char **argv) 8883 { 8884 return (zfs_do_jail_impl(argc, argv, B_FALSE)); 8885 } 8886 #endif
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