1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright 2019 Joyent, Inc. 27 * Copyright (c) 2011-2012 Pawel Jakub Dawidek. All rights reserved. 28 * Copyright (c) 2013 Steven Hartland. All rights reserved. 29 * Copyright (c) 2014 Integros [integros.com] 30 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 31 * Copyright 2016 Nexenta Systems, Inc. 32 * Copyright (c) 2018 Datto Inc. 33 */ 34 35 #include <assert.h> 36 #include <ctype.h> 37 #include <errno.h> 38 #include <getopt.h> 39 #include <libgen.h> 40 #include <libintl.h> 41 #include <libuutil.h> 42 #include <libnvpair.h> 43 #include <locale.h> 44 #include <stddef.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <strings.h> 48 #include <unistd.h> 49 #include <fcntl.h> 50 #include <zone.h> 51 #include <grp.h> 52 #include <pwd.h> 53 #include <signal.h> 54 #include <sys/debug.h> 55 #include <sys/list.h> 56 #include <sys/mkdev.h> 57 #include <sys/mntent.h> 58 #include <sys/mnttab.h> 59 #include <sys/mount.h> 60 #include <sys/stat.h> 61 #include <sys/fs/zfs.h> 62 #include <sys/types.h> 63 #include <time.h> 64 #include <sys/zfs_project.h> 65 #include <synch.h> 66 67 #include <libzfs.h> 68 #include <libzfs_core.h> 69 #include <zfs_prop.h> 70 #include <zfs_deleg.h> 71 #include <libuutil.h> 72 #include <aclutils.h> 73 #include <directory.h> 74 #include <idmap.h> 75 #include <libshare.h> 76 77 #include "zfs_iter.h" 78 #include "zfs_util.h" 79 #include "zfs_comutil.h" 80 #include "zfs_projectutil.h" 81 82 libzfs_handle_t *g_zfs; 83 84 static FILE *mnttab_file; 85 static char history_str[HIS_MAX_RECORD_LEN]; 86 static boolean_t log_history = B_TRUE; 87 88 static int zfs_do_clone(int argc, char **argv); 89 static int zfs_do_create(int argc, char **argv); 90 static int zfs_do_destroy(int argc, char **argv); 91 static int zfs_do_get(int argc, char **argv); 92 static int zfs_do_inherit(int argc, char **argv); 93 static int zfs_do_list(int argc, char **argv); 94 static int zfs_do_mount(int argc, char **argv); 95 static int zfs_do_rename(int argc, char **argv); 96 static int zfs_do_rollback(int argc, char **argv); 97 static int zfs_do_set(int argc, char **argv); 98 static int zfs_do_upgrade(int argc, char **argv); 99 static int zfs_do_snapshot(int argc, char **argv); 100 static int zfs_do_unmount(int argc, char **argv); 101 static int zfs_do_share(int argc, char **argv); 102 static int zfs_do_unshare(int argc, char **argv); 103 static int zfs_do_send(int argc, char **argv); 104 static int zfs_do_receive(int argc, char **argv); 105 static int zfs_do_promote(int argc, char **argv); 106 static int zfs_do_userspace(int argc, char **argv); 107 static int zfs_do_allow(int argc, char **argv); 108 static int zfs_do_unallow(int argc, char **argv); 109 static int zfs_do_hold(int argc, char **argv); 110 static int zfs_do_holds(int argc, char **argv); 111 static int zfs_do_release(int argc, char **argv); 112 static int zfs_do_diff(int argc, char **argv); 113 static int zfs_do_bookmark(int argc, char **argv); 114 static int zfs_do_remap(int argc, char **argv); 115 static int zfs_do_channel_program(int argc, char **argv); 116 static int zfs_do_load_key(int argc, char **argv); 117 static int zfs_do_unload_key(int argc, char **argv); 118 static int zfs_do_change_key(int argc, char **argv); 119 static int zfs_do_project(int argc, char **argv); 120 121 /* 122 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 123 */ 124 125 #ifdef DEBUG 126 const char * 127 _umem_debug_init(void) 128 { 129 return ("default,verbose"); /* $UMEM_DEBUG setting */ 130 } 131 132 const char * 133 _umem_logging_init(void) 134 { 135 return ("fail,contents"); /* $UMEM_LOGGING setting */ 136 } 137 #endif 138 139 typedef enum { 140 HELP_CLONE, 141 HELP_CREATE, 142 HELP_DESTROY, 143 HELP_GET, 144 HELP_INHERIT, 145 HELP_UPGRADE, 146 HELP_LIST, 147 HELP_MOUNT, 148 HELP_PROMOTE, 149 HELP_RECEIVE, 150 HELP_RENAME, 151 HELP_ROLLBACK, 152 HELP_SEND, 153 HELP_SET, 154 HELP_SHARE, 155 HELP_SNAPSHOT, 156 HELP_UNMOUNT, 157 HELP_UNSHARE, 158 HELP_ALLOW, 159 HELP_UNALLOW, 160 HELP_USERSPACE, 161 HELP_GROUPSPACE, 162 HELP_PROJECTSPACE, 163 HELP_PROJECT, 164 HELP_HOLD, 165 HELP_HOLDS, 166 HELP_RELEASE, 167 HELP_DIFF, 168 HELP_REMAP, 169 HELP_BOOKMARK, 170 HELP_CHANNEL_PROGRAM, 171 HELP_LOAD_KEY, 172 HELP_UNLOAD_KEY, 173 HELP_CHANGE_KEY, 174 } zfs_help_t; 175 176 typedef struct zfs_command { 177 const char *name; 178 int (*func)(int argc, char **argv); 179 zfs_help_t usage; 180 } zfs_command_t; 181 182 /* 183 * Master command table. Each ZFS command has a name, associated function, and 184 * usage message. The usage messages need to be internationalized, so we have 185 * to have a function to return the usage message based on a command index. 186 * 187 * These commands are organized according to how they are displayed in the usage 188 * message. An empty command (one with a NULL name) indicates an empty line in 189 * the generic usage message. 190 */ 191 static zfs_command_t command_table[] = { 192 { "create", zfs_do_create, HELP_CREATE }, 193 { "destroy", zfs_do_destroy, HELP_DESTROY }, 194 { NULL }, 195 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 196 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 197 { "clone", zfs_do_clone, HELP_CLONE }, 198 { "promote", zfs_do_promote, HELP_PROMOTE }, 199 { "rename", zfs_do_rename, HELP_RENAME }, 200 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 201 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 202 { NULL }, 203 { "list", zfs_do_list, HELP_LIST }, 204 { NULL }, 205 { "set", zfs_do_set, HELP_SET }, 206 { "get", zfs_do_get, HELP_GET }, 207 { "inherit", zfs_do_inherit, HELP_INHERIT }, 208 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 209 { NULL }, 210 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 211 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 212 { "projectspace", zfs_do_userspace, HELP_PROJECTSPACE }, 213 { NULL }, 214 { "project", zfs_do_project, HELP_PROJECT }, 215 { NULL }, 216 { "mount", zfs_do_mount, HELP_MOUNT }, 217 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 218 { "share", zfs_do_share, HELP_SHARE }, 219 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 220 { NULL }, 221 { "send", zfs_do_send, HELP_SEND }, 222 { "receive", zfs_do_receive, HELP_RECEIVE }, 223 { NULL }, 224 { "allow", zfs_do_allow, HELP_ALLOW }, 225 { NULL }, 226 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 227 { NULL }, 228 { "hold", zfs_do_hold, HELP_HOLD }, 229 { "holds", zfs_do_holds, HELP_HOLDS }, 230 { "release", zfs_do_release, HELP_RELEASE }, 231 { "diff", zfs_do_diff, HELP_DIFF }, 232 { "remap", zfs_do_remap, HELP_REMAP }, 233 { "load-key", zfs_do_load_key, HELP_LOAD_KEY }, 234 { "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY }, 235 { "change-key", zfs_do_change_key, HELP_CHANGE_KEY }, 236 }; 237 238 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 239 240 zfs_command_t *current_command; 241 242 static const char * 243 get_usage(zfs_help_t idx) 244 { 245 switch (idx) { 246 case HELP_CLONE: 247 return (gettext("\tclone [-p] [-o property=value] ... " 248 "<snapshot> <filesystem|volume>\n")); 249 case HELP_CREATE: 250 return (gettext("\tcreate [-p] [-o property=value] ... " 251 "<filesystem>\n" 252 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 253 "-V <size> <volume>\n")); 254 case HELP_DESTROY: 255 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 256 "\tdestroy [-dnpRrv] " 257 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 258 "\tdestroy <filesystem|volume>#<bookmark>\n")); 259 case HELP_GET: 260 return (gettext("\tget [-rHp] [-d max] " 261 "[-o \"all\" | field[,...]]\n" 262 "\t [-t type[,...]] [-s source[,...]]\n" 263 "\t <\"all\" | property[,...]> " 264 "[filesystem|volume|snapshot|bookmark] ...\n")); 265 case HELP_INHERIT: 266 return (gettext("\tinherit [-rS] <property> " 267 "<filesystem|volume|snapshot> ...\n")); 268 case HELP_UPGRADE: 269 return (gettext("\tupgrade [-v]\n" 270 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 271 case HELP_LIST: 272 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 273 "[-s property]...\n\t [-S property]... [-t type[,...]] " 274 "[filesystem|volume|snapshot] ...\n")); 275 case HELP_MOUNT: 276 return (gettext("\tmount\n" 277 "\tmount [-lvO] [-o opts] <-a | filesystem>\n")); 278 case HELP_PROMOTE: 279 return (gettext("\tpromote <clone-filesystem>\n")); 280 case HELP_RECEIVE: 281 return (gettext("\treceive [-vnsFhu] " 282 "[-o <property>=<value>] ... [-x <property>] ...\n" 283 "\t <filesystem|volume|snapshot>\n" 284 "\treceive [-vnsFhu] [-o <property>=<value>] ... " 285 "[-x <property>] ... \n" 286 "\t [-d | -e] <filesystem>\n" 287 "\treceive -A <filesystem|volume>\n")); 288 case HELP_RENAME: 289 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 290 "<filesystem|volume|snapshot>\n" 291 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 292 "\trename -r <snapshot> <snapshot>\n")); 293 case HELP_ROLLBACK: 294 return (gettext("\trollback [-rRf] <snapshot>\n")); 295 case HELP_SEND: 296 return (gettext("\tsend [-DnPpRvLecwhb] [-[iI] snapshot] " 297 "<snapshot>\n" 298 "\tsend [-nvPLecw] [-i snapshot|bookmark] " 299 "<filesystem|volume|snapshot>\n" 300 "\tsend [-nvPe] -t <receive_resume_token>\n")); 301 case HELP_SET: 302 return (gettext("\tset <property=value> ... " 303 "<filesystem|volume|snapshot> ...\n")); 304 case HELP_SHARE: 305 return (gettext("\tshare [-l] <-a | filesystem>\n")); 306 case HELP_SNAPSHOT: 307 return (gettext("\tsnapshot [-r] [-o property=value] ... " 308 "<filesystem|volume>@<snap> ...\n")); 309 case HELP_UNMOUNT: 310 return (gettext("\tunmount [-f] " 311 "<-a | filesystem|mountpoint>\n")); 312 case HELP_UNSHARE: 313 return (gettext("\tunshare " 314 "<-a | filesystem|mountpoint>\n")); 315 case HELP_ALLOW: 316 return (gettext("\tallow <filesystem|volume>\n" 317 "\tallow [-ldug] " 318 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 319 "\t <filesystem|volume>\n" 320 "\tallow [-ld] -e <perm|@setname>[,...] " 321 "<filesystem|volume>\n" 322 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 323 "\tallow -s @setname <perm|@setname>[,...] " 324 "<filesystem|volume>\n")); 325 case HELP_UNALLOW: 326 return (gettext("\tunallow [-rldug] " 327 "<\"everyone\"|user|group>[,...]\n" 328 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 329 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 330 "<filesystem|volume>\n" 331 "\tunallow [-r] -c [<perm|@setname>[,...]] " 332 "<filesystem|volume>\n" 333 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 334 "<filesystem|volume>\n")); 335 case HELP_USERSPACE: 336 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 337 "[-s field] ...\n" 338 "\t [-S field] ... [-t type[,...]] " 339 "<filesystem|snapshot>\n")); 340 case HELP_GROUPSPACE: 341 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 342 "[-s field] ...\n" 343 "\t [-S field] ... [-t type[,...]] " 344 "<filesystem|snapshot>\n")); 345 case HELP_PROJECTSPACE: 346 return (gettext("\tprojectspace [-Hp] [-o field[,...]] " 347 "[-s field] ... \n" 348 "\t [-S field] ... <filesystem|snapshot>\n")); 349 case HELP_PROJECT: 350 return (gettext("\tproject [-d|-r] <directory|file ...>\n" 351 "\tproject -c [-0] [-d|-r] [-p id] <directory|file ...>\n" 352 "\tproject -C [-k] [-r] <directory ...>\n" 353 "\tproject [-p id] [-r] [-s] <directory ...>\n")); 354 case HELP_HOLD: 355 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 356 case HELP_HOLDS: 357 return (gettext("\tholds [-r] <snapshot> ...\n")); 358 case HELP_RELEASE: 359 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 360 case HELP_DIFF: 361 return (gettext("\tdiff [-FHt] <snapshot> " 362 "[snapshot|filesystem]\n")); 363 case HELP_REMAP: 364 return (gettext("\tremap <filesystem | volume>\n")); 365 case HELP_BOOKMARK: 366 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 367 case HELP_CHANNEL_PROGRAM: 368 return (gettext("\tprogram [-jn] [-t <instruction limit>] " 369 "[-m <memory limit (b)>] <pool> <program file> " 370 "[lua args...]\n")); 371 case HELP_LOAD_KEY: 372 return (gettext("\tload-key [-rn] [-L <keylocation>] " 373 "<-a | filesystem|volume>\n")); 374 case HELP_UNLOAD_KEY: 375 return (gettext("\tunload-key [-r] " 376 "<-a | filesystem|volume>\n")); 377 case HELP_CHANGE_KEY: 378 return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n" 379 "\t [-o keylocation=<value>] [-o pbkfd2iters=<value>]\n" 380 "\t <filesystem|volume>\n" 381 "\tchange-key -i [-l] <filesystem|volume>\n")); 382 } 383 384 abort(); 385 /* NOTREACHED */ 386 } 387 388 void 389 nomem(void) 390 { 391 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 392 exit(1); 393 } 394 395 /* 396 * Utility function to guarantee malloc() success. 397 */ 398 399 void * 400 safe_malloc(size_t size) 401 { 402 void *data; 403 404 if ((data = calloc(1, size)) == NULL) 405 nomem(); 406 407 return (data); 408 } 409 410 void * 411 safe_realloc(void *data, size_t size) 412 { 413 void *newp; 414 if ((newp = realloc(data, size)) == NULL) { 415 free(data); 416 nomem(); 417 } 418 419 return (newp); 420 } 421 422 static char * 423 safe_strdup(char *str) 424 { 425 char *dupstr = strdup(str); 426 427 if (dupstr == NULL) 428 nomem(); 429 430 return (dupstr); 431 } 432 433 /* 434 * Callback routine that will print out information for each of 435 * the properties. 436 */ 437 static int 438 usage_prop_cb(int prop, void *cb) 439 { 440 FILE *fp = cb; 441 442 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 443 444 if (zfs_prop_readonly(prop)) 445 (void) fprintf(fp, " NO "); 446 else 447 (void) fprintf(fp, "YES "); 448 449 if (zfs_prop_inheritable(prop)) 450 (void) fprintf(fp, " YES "); 451 else 452 (void) fprintf(fp, " NO "); 453 454 if (zfs_prop_values(prop) == NULL) 455 (void) fprintf(fp, "-\n"); 456 else 457 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 458 459 return (ZPROP_CONT); 460 } 461 462 /* 463 * Display usage message. If we're inside a command, display only the usage for 464 * that command. Otherwise, iterate over the entire command table and display 465 * a complete usage message. 466 */ 467 static void 468 usage(boolean_t requested) 469 { 470 int i; 471 boolean_t show_properties = B_FALSE; 472 FILE *fp = requested ? stdout : stderr; 473 474 if (current_command == NULL) { 475 476 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 477 (void) fprintf(fp, 478 gettext("where 'command' is one of the following:\n\n")); 479 480 for (i = 0; i < NCOMMAND; i++) { 481 if (command_table[i].name == NULL) 482 (void) fprintf(fp, "\n"); 483 else 484 (void) fprintf(fp, "%s", 485 get_usage(command_table[i].usage)); 486 } 487 488 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 489 "pool/[dataset/]*dataset[@name]\n")); 490 } else { 491 (void) fprintf(fp, gettext("usage:\n")); 492 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 493 } 494 495 if (current_command != NULL && 496 (strcmp(current_command->name, "set") == 0 || 497 strcmp(current_command->name, "get") == 0 || 498 strcmp(current_command->name, "inherit") == 0 || 499 strcmp(current_command->name, "list") == 0)) 500 show_properties = B_TRUE; 501 502 if (show_properties) { 503 (void) fprintf(fp, 504 gettext("\nThe following properties are supported:\n")); 505 506 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 507 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 508 509 /* Iterate over all properties */ 510 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 511 ZFS_TYPE_DATASET); 512 513 (void) fprintf(fp, "\t%-15s ", "userused@..."); 514 (void) fprintf(fp, " NO NO <size>\n"); 515 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 516 (void) fprintf(fp, " NO NO <size>\n"); 517 (void) fprintf(fp, "\t%-15s ", "projectused@..."); 518 (void) fprintf(fp, " NO NO <size>\n"); 519 (void) fprintf(fp, "\t%-15s ", "userobjused@..."); 520 (void) fprintf(fp, " NO NO <size>\n"); 521 (void) fprintf(fp, "\t%-15s ", "groupobjused@..."); 522 (void) fprintf(fp, " NO NO <size>\n"); 523 (void) fprintf(fp, "\t%-15s ", "projectobjused@..."); 524 (void) fprintf(fp, " NO NO <size>\n"); 525 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 526 (void) fprintf(fp, "YES NO <size> | none\n"); 527 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 528 (void) fprintf(fp, "YES NO <size> | none\n"); 529 (void) fprintf(fp, "\t%-15s ", "projectquota@..."); 530 (void) fprintf(fp, "YES NO <size> | none\n"); 531 (void) fprintf(fp, "\t%-15s ", "userobjquota@..."); 532 (void) fprintf(fp, "YES NO <size> | none\n"); 533 (void) fprintf(fp, "\t%-15s ", "groupobjquota@..."); 534 (void) fprintf(fp, "YES NO <size> | none\n"); 535 (void) fprintf(fp, "\t%-15s ", "projectobjquota@..."); 536 (void) fprintf(fp, "YES NO <size> | none\n"); 537 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 538 (void) fprintf(fp, " NO NO <size>\n"); 539 540 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 541 "with standard units such as K, M, G, etc.\n")); 542 (void) fprintf(fp, gettext("\nUser-defined properties can " 543 "be specified by using a name containing a colon (:).\n")); 544 (void) fprintf(fp, gettext("\nThe {user|group|project}" 545 "[obj]{used|quota}@ properties must be appended with\n" 546 "a user|group|project specifier of one of these forms:\n" 547 " POSIX name (eg: \"matt\")\n" 548 " POSIX id (eg: \"126829\")\n" 549 " SMB name@domain (eg: \"matt@sun\")\n" 550 " SMB SID (eg: \"S-1-234-567-89\")\n")); 551 } else { 552 (void) fprintf(fp, 553 gettext("\nFor the property list, run: %s\n"), 554 "zfs set|get"); 555 (void) fprintf(fp, 556 gettext("\nFor the delegated permission list, run: %s\n"), 557 "zfs allow|unallow"); 558 } 559 560 /* 561 * See comments at end of main(). 562 */ 563 if (getenv("ZFS_ABORT") != NULL) { 564 (void) printf("dumping core by request\n"); 565 abort(); 566 } 567 568 exit(requested ? 0 : 2); 569 } 570 571 /* 572 * Take a property=value argument string and add it to the given nvlist. 573 * Modifies the argument inplace. 574 */ 575 static boolean_t 576 parseprop(nvlist_t *props, char *propname) 577 { 578 char *propval; 579 580 if ((propval = strchr(propname, '=')) == NULL) { 581 (void) fprintf(stderr, gettext("missing " 582 "'=' for property=value argument\n")); 583 return (B_FALSE); 584 } 585 *propval = '\0'; 586 propval++; 587 if (nvlist_exists(props, propname)) { 588 (void) fprintf(stderr, gettext("property '%s' " 589 "specified multiple times\n"), propname); 590 return (B_FALSE); 591 } 592 if (nvlist_add_string(props, propname, propval) != 0) 593 nomem(); 594 return (B_TRUE); 595 } 596 597 /* 598 * Take a property name argument and add it to the given nvlist. 599 * Modifies the argument inplace. 600 */ 601 static boolean_t 602 parsepropname(nvlist_t *props, char *propname) 603 { 604 if (strchr(propname, '=') != NULL) { 605 (void) fprintf(stderr, gettext("invalid character " 606 "'=' in property argument\n")); 607 return (B_FALSE); 608 } 609 if (nvlist_exists(props, propname)) { 610 (void) fprintf(stderr, gettext("property '%s' " 611 "specified multiple times\n"), propname); 612 return (B_FALSE); 613 } 614 if (nvlist_add_boolean(props, propname) != 0) 615 nomem(); 616 return (B_TRUE); 617 } 618 619 static int 620 parse_depth(char *opt, int *flags) 621 { 622 char *tmp; 623 int depth; 624 625 depth = (int)strtol(opt, &tmp, 0); 626 if (*tmp) { 627 (void) fprintf(stderr, 628 gettext("%s is not an integer\n"), optarg); 629 usage(B_FALSE); 630 } 631 if (depth < 0) { 632 (void) fprintf(stderr, 633 gettext("Depth can not be negative.\n")); 634 usage(B_FALSE); 635 } 636 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 637 return (depth); 638 } 639 640 #define PROGRESS_DELAY 2 /* seconds */ 641 642 static char *pt_reverse = "\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"; 643 static time_t pt_begin; 644 static char *pt_header = NULL; 645 static boolean_t pt_shown; 646 647 static void 648 start_progress_timer(void) 649 { 650 pt_begin = time(NULL) + PROGRESS_DELAY; 651 pt_shown = B_FALSE; 652 } 653 654 static void 655 set_progress_header(char *header) 656 { 657 assert(pt_header == NULL); 658 pt_header = safe_strdup(header); 659 if (pt_shown) { 660 (void) printf("%s: ", header); 661 (void) fflush(stdout); 662 } 663 } 664 665 static void 666 update_progress(char *update) 667 { 668 if (!pt_shown && time(NULL) > pt_begin) { 669 int len = strlen(update); 670 671 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 672 pt_reverse); 673 (void) fflush(stdout); 674 pt_shown = B_TRUE; 675 } else if (pt_shown) { 676 int len = strlen(update); 677 678 (void) printf("%s%*.*s", update, len, len, pt_reverse); 679 (void) fflush(stdout); 680 } 681 } 682 683 static void 684 finish_progress(char *done) 685 { 686 if (pt_shown) { 687 (void) printf("%s\n", done); 688 (void) fflush(stdout); 689 } 690 free(pt_header); 691 pt_header = NULL; 692 } 693 694 /* 695 * Check if the dataset is mountable and should be automatically mounted. 696 */ 697 static boolean_t 698 should_auto_mount(zfs_handle_t *zhp) 699 { 700 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 701 return (B_FALSE); 702 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 703 } 704 705 /* 706 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 707 * 708 * Given an existing dataset, create a writable copy whose initial contents 709 * are the same as the source. The newly created dataset maintains a 710 * dependency on the original; the original cannot be destroyed so long as 711 * the clone exists. 712 * 713 * The '-p' flag creates all the non-existing ancestors of the target first. 714 */ 715 static int 716 zfs_do_clone(int argc, char **argv) 717 { 718 zfs_handle_t *zhp = NULL; 719 boolean_t parents = B_FALSE; 720 nvlist_t *props; 721 int ret = 0; 722 int c; 723 724 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 725 nomem(); 726 727 /* check options */ 728 while ((c = getopt(argc, argv, "o:p")) != -1) { 729 switch (c) { 730 case 'o': 731 if (!parseprop(props, optarg)) { 732 nvlist_free(props); 733 return (1); 734 } 735 break; 736 case 'p': 737 parents = B_TRUE; 738 break; 739 case '?': 740 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 741 optopt); 742 goto usage; 743 } 744 } 745 746 argc -= optind; 747 argv += optind; 748 749 /* check number of arguments */ 750 if (argc < 1) { 751 (void) fprintf(stderr, gettext("missing source dataset " 752 "argument\n")); 753 goto usage; 754 } 755 if (argc < 2) { 756 (void) fprintf(stderr, gettext("missing target dataset " 757 "argument\n")); 758 goto usage; 759 } 760 if (argc > 2) { 761 (void) fprintf(stderr, gettext("too many arguments\n")); 762 goto usage; 763 } 764 765 /* open the source dataset */ 766 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 767 return (1); 768 769 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 770 ZFS_TYPE_VOLUME)) { 771 /* 772 * Now create the ancestors of the target dataset. If the 773 * target already exists and '-p' option was used we should not 774 * complain. 775 */ 776 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 777 ZFS_TYPE_VOLUME)) 778 return (0); 779 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 780 return (1); 781 } 782 783 /* pass to libzfs */ 784 ret = zfs_clone(zhp, argv[1], props); 785 786 /* create the mountpoint if necessary */ 787 if (ret == 0) { 788 zfs_handle_t *clone; 789 790 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 791 if (clone != NULL) { 792 /* 793 * If the user doesn't want the dataset 794 * automatically mounted, then skip the mount/share 795 * step. 796 */ 797 if (should_auto_mount(clone)) { 798 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 799 (void) fprintf(stderr, gettext("clone " 800 "successfully created, " 801 "but not mounted\n")); 802 } else if ((ret = zfs_share(clone)) != 0) { 803 (void) fprintf(stderr, gettext("clone " 804 "successfully created, " 805 "but not shared\n")); 806 } 807 } 808 zfs_close(clone); 809 } 810 } 811 812 zfs_close(zhp); 813 nvlist_free(props); 814 815 return (!!ret); 816 817 usage: 818 if (zhp) 819 zfs_close(zhp); 820 nvlist_free(props); 821 usage(B_FALSE); 822 return (-1); 823 } 824 825 /* 826 * zfs create [-p] [-o prop=value] ... fs 827 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 828 * 829 * Create a new dataset. This command can be used to create filesystems 830 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 831 * For volumes, the user must specify a size to be used. 832 * 833 * The '-s' flag applies only to volumes, and indicates that we should not try 834 * to set the reservation for this volume. By default we set a reservation 835 * equal to the size for any volume. For pools with SPA_VERSION >= 836 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 837 * 838 * The '-p' flag creates all the non-existing ancestors of the target first. 839 */ 840 static int 841 zfs_do_create(int argc, char **argv) 842 { 843 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 844 zfs_handle_t *zhp = NULL; 845 uint64_t volsize = 0; 846 int c; 847 boolean_t noreserve = B_FALSE; 848 boolean_t bflag = B_FALSE; 849 boolean_t parents = B_FALSE; 850 int ret = 1; 851 nvlist_t *props; 852 uint64_t intval; 853 854 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 855 nomem(); 856 857 /* check options */ 858 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 859 switch (c) { 860 case 'V': 861 type = ZFS_TYPE_VOLUME; 862 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 863 (void) fprintf(stderr, gettext("bad volume " 864 "size '%s': %s\n"), optarg, 865 libzfs_error_description(g_zfs)); 866 goto error; 867 } 868 869 if (nvlist_add_uint64(props, 870 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 871 nomem(); 872 volsize = intval; 873 break; 874 case 'p': 875 parents = B_TRUE; 876 break; 877 case 'b': 878 bflag = B_TRUE; 879 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 880 (void) fprintf(stderr, gettext("bad volume " 881 "block size '%s': %s\n"), optarg, 882 libzfs_error_description(g_zfs)); 883 goto error; 884 } 885 886 if (nvlist_add_uint64(props, 887 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 888 intval) != 0) 889 nomem(); 890 break; 891 case 'o': 892 if (!parseprop(props, optarg)) 893 goto error; 894 break; 895 case 's': 896 noreserve = B_TRUE; 897 break; 898 case ':': 899 (void) fprintf(stderr, gettext("missing size " 900 "argument\n")); 901 goto badusage; 902 case '?': 903 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 904 optopt); 905 goto badusage; 906 } 907 } 908 909 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 910 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 911 "used when creating a volume\n")); 912 goto badusage; 913 } 914 915 argc -= optind; 916 argv += optind; 917 918 /* check number of arguments */ 919 if (argc == 0) { 920 (void) fprintf(stderr, gettext("missing %s argument\n"), 921 zfs_type_to_name(type)); 922 goto badusage; 923 } 924 if (argc > 1) { 925 (void) fprintf(stderr, gettext("too many arguments\n")); 926 goto badusage; 927 } 928 929 if (type == ZFS_TYPE_VOLUME && !noreserve) { 930 zpool_handle_t *zpool_handle; 931 nvlist_t *real_props = NULL; 932 uint64_t spa_version; 933 char *p; 934 zfs_prop_t resv_prop; 935 char *strval; 936 char msg[1024]; 937 938 if ((p = strchr(argv[0], '/')) != NULL) 939 *p = '\0'; 940 zpool_handle = zpool_open(g_zfs, argv[0]); 941 if (p != NULL) 942 *p = '/'; 943 if (zpool_handle == NULL) 944 goto error; 945 spa_version = zpool_get_prop_int(zpool_handle, 946 ZPOOL_PROP_VERSION, NULL); 947 if (spa_version >= SPA_VERSION_REFRESERVATION) 948 resv_prop = ZFS_PROP_REFRESERVATION; 949 else 950 resv_prop = ZFS_PROP_RESERVATION; 951 952 (void) snprintf(msg, sizeof (msg), 953 gettext("cannot create '%s'"), argv[0]); 954 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 955 props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) { 956 zpool_close(zpool_handle); 957 goto error; 958 } 959 960 volsize = zvol_volsize_to_reservation(zpool_handle, volsize, 961 real_props); 962 nvlist_free(real_props); 963 zpool_close(zpool_handle); 964 965 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 966 &strval) != 0) { 967 if (nvlist_add_uint64(props, 968 zfs_prop_to_name(resv_prop), volsize) != 0) { 969 nvlist_free(props); 970 nomem(); 971 } 972 } 973 } 974 975 if (parents && zfs_name_valid(argv[0], type)) { 976 /* 977 * Now create the ancestors of target dataset. If the target 978 * already exists and '-p' option was used we should not 979 * complain. 980 */ 981 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 982 ret = 0; 983 goto error; 984 } 985 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 986 goto error; 987 } 988 989 /* pass to libzfs */ 990 if (zfs_create(g_zfs, argv[0], type, props) != 0) 991 goto error; 992 993 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 994 goto error; 995 996 ret = 0; 997 998 /* 999 * Mount and/or share the new filesystem as appropriate. We provide a 1000 * verbose error message to let the user know that their filesystem was 1001 * in fact created, even if we failed to mount or share it. 1002 * If the user doesn't want the dataset automatically mounted, 1003 * then skip the mount/share step altogether. 1004 */ 1005 if (should_auto_mount(zhp)) { 1006 if (zfs_mount(zhp, NULL, 0) != 0) { 1007 (void) fprintf(stderr, gettext("filesystem " 1008 "successfully created, but not mounted\n")); 1009 ret = 1; 1010 } else if (zfs_share(zhp) != 0) { 1011 (void) fprintf(stderr, gettext("filesystem " 1012 "successfully created, but not shared\n")); 1013 ret = 1; 1014 } 1015 } 1016 1017 error: 1018 if (zhp) 1019 zfs_close(zhp); 1020 nvlist_free(props); 1021 return (ret); 1022 badusage: 1023 nvlist_free(props); 1024 usage(B_FALSE); 1025 return (2); 1026 } 1027 1028 /* 1029 * zfs destroy [-rRf] <fs, vol> 1030 * zfs destroy [-rRd] <snap> 1031 * 1032 * -r Recursively destroy all children 1033 * -R Recursively destroy all dependents, including clones 1034 * -f Force unmounting of any dependents 1035 * -d If we can't destroy now, mark for deferred destruction 1036 * 1037 * Destroys the given dataset. By default, it will unmount any filesystems, 1038 * and refuse to destroy a dataset that has any dependents. A dependent can 1039 * either be a child, or a clone of a child. 1040 */ 1041 typedef struct destroy_cbdata { 1042 boolean_t cb_first; 1043 boolean_t cb_force; 1044 boolean_t cb_recurse; 1045 boolean_t cb_error; 1046 boolean_t cb_doclones; 1047 zfs_handle_t *cb_target; 1048 boolean_t cb_defer_destroy; 1049 boolean_t cb_verbose; 1050 boolean_t cb_parsable; 1051 boolean_t cb_dryrun; 1052 nvlist_t *cb_nvl; 1053 nvlist_t *cb_batchedsnaps; 1054 1055 /* first snap in contiguous run */ 1056 char *cb_firstsnap; 1057 /* previous snap in contiguous run */ 1058 char *cb_prevsnap; 1059 int64_t cb_snapused; 1060 char *cb_snapspec; 1061 char *cb_bookmark; 1062 } destroy_cbdata_t; 1063 1064 /* 1065 * Check for any dependents based on the '-r' or '-R' flags. 1066 */ 1067 static int 1068 destroy_check_dependent(zfs_handle_t *zhp, void *data) 1069 { 1070 destroy_cbdata_t *cbp = data; 1071 const char *tname = zfs_get_name(cbp->cb_target); 1072 const char *name = zfs_get_name(zhp); 1073 1074 if (strncmp(tname, name, strlen(tname)) == 0 && 1075 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 1076 /* 1077 * This is a direct descendant, not a clone somewhere else in 1078 * the hierarchy. 1079 */ 1080 if (cbp->cb_recurse) 1081 goto out; 1082 1083 if (cbp->cb_first) { 1084 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1085 "%s has children\n"), 1086 zfs_get_name(cbp->cb_target), 1087 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1088 (void) fprintf(stderr, gettext("use '-r' to destroy " 1089 "the following datasets:\n")); 1090 cbp->cb_first = B_FALSE; 1091 cbp->cb_error = B_TRUE; 1092 } 1093 1094 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1095 } else { 1096 /* 1097 * This is a clone. We only want to report this if the '-r' 1098 * wasn't specified, or the target is a snapshot. 1099 */ 1100 if (!cbp->cb_recurse && 1101 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1102 goto out; 1103 1104 if (cbp->cb_first) { 1105 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1106 "%s has dependent clones\n"), 1107 zfs_get_name(cbp->cb_target), 1108 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1109 (void) fprintf(stderr, gettext("use '-R' to destroy " 1110 "the following datasets:\n")); 1111 cbp->cb_first = B_FALSE; 1112 cbp->cb_error = B_TRUE; 1113 cbp->cb_dryrun = B_TRUE; 1114 } 1115 1116 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1117 } 1118 1119 out: 1120 zfs_close(zhp); 1121 return (0); 1122 } 1123 1124 static int 1125 destroy_callback(zfs_handle_t *zhp, void *data) 1126 { 1127 destroy_cbdata_t *cb = data; 1128 const char *name = zfs_get_name(zhp); 1129 1130 if (cb->cb_verbose) { 1131 if (cb->cb_parsable) { 1132 (void) printf("destroy\t%s\n", name); 1133 } else if (cb->cb_dryrun) { 1134 (void) printf(gettext("would destroy %s\n"), 1135 name); 1136 } else { 1137 (void) printf(gettext("will destroy %s\n"), 1138 name); 1139 } 1140 } 1141 1142 /* 1143 * Ignore pools (which we've already flagged as an error before getting 1144 * here). 1145 */ 1146 if (strchr(zfs_get_name(zhp), '/') == NULL && 1147 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1148 zfs_close(zhp); 1149 return (0); 1150 } 1151 if (cb->cb_dryrun) { 1152 zfs_close(zhp); 1153 return (0); 1154 } 1155 1156 /* 1157 * We batch up all contiguous snapshots (even of different 1158 * filesystems) and destroy them with one ioctl. We can't 1159 * simply do all snap deletions and then all fs deletions, 1160 * because we must delete a clone before its origin. 1161 */ 1162 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1163 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1164 } else { 1165 int error = zfs_destroy_snaps_nvl(g_zfs, 1166 cb->cb_batchedsnaps, B_FALSE); 1167 fnvlist_free(cb->cb_batchedsnaps); 1168 cb->cb_batchedsnaps = fnvlist_alloc(); 1169 1170 if (error != 0 || 1171 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1172 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1173 zfs_close(zhp); 1174 return (-1); 1175 } 1176 } 1177 1178 zfs_close(zhp); 1179 return (0); 1180 } 1181 1182 static int 1183 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1184 { 1185 destroy_cbdata_t *cb = arg; 1186 const char *name = zfs_get_name(zhp); 1187 int err = 0; 1188 1189 if (nvlist_exists(cb->cb_nvl, name)) { 1190 if (cb->cb_firstsnap == NULL) 1191 cb->cb_firstsnap = strdup(name); 1192 if (cb->cb_prevsnap != NULL) 1193 free(cb->cb_prevsnap); 1194 /* this snap continues the current range */ 1195 cb->cb_prevsnap = strdup(name); 1196 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1197 nomem(); 1198 if (cb->cb_verbose) { 1199 if (cb->cb_parsable) { 1200 (void) printf("destroy\t%s\n", name); 1201 } else if (cb->cb_dryrun) { 1202 (void) printf(gettext("would destroy %s\n"), 1203 name); 1204 } else { 1205 (void) printf(gettext("will destroy %s\n"), 1206 name); 1207 } 1208 } 1209 } else if (cb->cb_firstsnap != NULL) { 1210 /* end of this range */ 1211 uint64_t used = 0; 1212 err = lzc_snaprange_space(cb->cb_firstsnap, 1213 cb->cb_prevsnap, &used); 1214 cb->cb_snapused += used; 1215 free(cb->cb_firstsnap); 1216 cb->cb_firstsnap = NULL; 1217 free(cb->cb_prevsnap); 1218 cb->cb_prevsnap = NULL; 1219 } 1220 zfs_close(zhp); 1221 return (err); 1222 } 1223 1224 static int 1225 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1226 { 1227 int err = 0; 1228 assert(cb->cb_firstsnap == NULL); 1229 assert(cb->cb_prevsnap == NULL); 1230 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1231 if (cb->cb_firstsnap != NULL) { 1232 uint64_t used = 0; 1233 if (err == 0) { 1234 err = lzc_snaprange_space(cb->cb_firstsnap, 1235 cb->cb_prevsnap, &used); 1236 } 1237 cb->cb_snapused += used; 1238 free(cb->cb_firstsnap); 1239 cb->cb_firstsnap = NULL; 1240 free(cb->cb_prevsnap); 1241 cb->cb_prevsnap = NULL; 1242 } 1243 return (err); 1244 } 1245 1246 static int 1247 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1248 { 1249 destroy_cbdata_t *cb = arg; 1250 int err = 0; 1251 1252 /* Check for clones. */ 1253 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1254 cb->cb_target = zhp; 1255 cb->cb_first = B_TRUE; 1256 err = zfs_iter_dependents(zhp, B_TRUE, 1257 destroy_check_dependent, cb); 1258 } 1259 1260 if (err == 0) { 1261 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1262 nomem(); 1263 } 1264 zfs_close(zhp); 1265 return (err); 1266 } 1267 1268 static int 1269 gather_snapshots(zfs_handle_t *zhp, void *arg) 1270 { 1271 destroy_cbdata_t *cb = arg; 1272 int err = 0; 1273 1274 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1275 if (err == ENOENT) 1276 err = 0; 1277 if (err != 0) 1278 goto out; 1279 1280 if (cb->cb_verbose) { 1281 err = destroy_print_snapshots(zhp, cb); 1282 if (err != 0) 1283 goto out; 1284 } 1285 1286 if (cb->cb_recurse) 1287 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1288 1289 out: 1290 zfs_close(zhp); 1291 return (err); 1292 } 1293 1294 static int 1295 destroy_clones(destroy_cbdata_t *cb) 1296 { 1297 nvpair_t *pair; 1298 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1299 pair != NULL; 1300 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1301 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1302 ZFS_TYPE_SNAPSHOT); 1303 if (zhp != NULL) { 1304 boolean_t defer = cb->cb_defer_destroy; 1305 int err = 0; 1306 1307 /* 1308 * We can't defer destroy non-snapshots, so set it to 1309 * false while destroying the clones. 1310 */ 1311 cb->cb_defer_destroy = B_FALSE; 1312 err = zfs_iter_dependents(zhp, B_FALSE, 1313 destroy_callback, cb); 1314 cb->cb_defer_destroy = defer; 1315 zfs_close(zhp); 1316 if (err != 0) 1317 return (err); 1318 } 1319 } 1320 return (0); 1321 } 1322 1323 static int 1324 zfs_do_destroy(int argc, char **argv) 1325 { 1326 destroy_cbdata_t cb = { 0 }; 1327 int rv = 0; 1328 int err = 0; 1329 int c; 1330 zfs_handle_t *zhp = NULL; 1331 char *at, *pound; 1332 zfs_type_t type = ZFS_TYPE_DATASET; 1333 1334 /* check options */ 1335 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1336 switch (c) { 1337 case 'v': 1338 cb.cb_verbose = B_TRUE; 1339 break; 1340 case 'p': 1341 cb.cb_verbose = B_TRUE; 1342 cb.cb_parsable = B_TRUE; 1343 break; 1344 case 'n': 1345 cb.cb_dryrun = B_TRUE; 1346 break; 1347 case 'd': 1348 cb.cb_defer_destroy = B_TRUE; 1349 type = ZFS_TYPE_SNAPSHOT; 1350 break; 1351 case 'f': 1352 cb.cb_force = B_TRUE; 1353 break; 1354 case 'r': 1355 cb.cb_recurse = B_TRUE; 1356 break; 1357 case 'R': 1358 cb.cb_recurse = B_TRUE; 1359 cb.cb_doclones = B_TRUE; 1360 break; 1361 case '?': 1362 default: 1363 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1364 optopt); 1365 usage(B_FALSE); 1366 } 1367 } 1368 1369 argc -= optind; 1370 argv += optind; 1371 1372 /* check number of arguments */ 1373 if (argc == 0) { 1374 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1375 usage(B_FALSE); 1376 } 1377 if (argc > 1) { 1378 (void) fprintf(stderr, gettext("too many arguments\n")); 1379 usage(B_FALSE); 1380 } 1381 1382 at = strchr(argv[0], '@'); 1383 pound = strchr(argv[0], '#'); 1384 if (at != NULL) { 1385 1386 /* Build the list of snaps to destroy in cb_nvl. */ 1387 cb.cb_nvl = fnvlist_alloc(); 1388 1389 *at = '\0'; 1390 zhp = zfs_open(g_zfs, argv[0], 1391 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1392 if (zhp == NULL) 1393 return (1); 1394 1395 cb.cb_snapspec = at + 1; 1396 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1397 cb.cb_error) { 1398 rv = 1; 1399 goto out; 1400 } 1401 1402 if (nvlist_empty(cb.cb_nvl)) { 1403 (void) fprintf(stderr, gettext("could not find any " 1404 "snapshots to destroy; check snapshot names.\n")); 1405 rv = 1; 1406 goto out; 1407 } 1408 1409 if (cb.cb_verbose) { 1410 char buf[16]; 1411 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1412 if (cb.cb_parsable) { 1413 (void) printf("reclaim\t%llu\n", 1414 cb.cb_snapused); 1415 } else if (cb.cb_dryrun) { 1416 (void) printf(gettext("would reclaim %s\n"), 1417 buf); 1418 } else { 1419 (void) printf(gettext("will reclaim %s\n"), 1420 buf); 1421 } 1422 } 1423 1424 if (!cb.cb_dryrun) { 1425 if (cb.cb_doclones) { 1426 cb.cb_batchedsnaps = fnvlist_alloc(); 1427 err = destroy_clones(&cb); 1428 if (err == 0) { 1429 err = zfs_destroy_snaps_nvl(g_zfs, 1430 cb.cb_batchedsnaps, B_FALSE); 1431 } 1432 if (err != 0) { 1433 rv = 1; 1434 goto out; 1435 } 1436 } 1437 if (err == 0) { 1438 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1439 cb.cb_defer_destroy); 1440 } 1441 } 1442 1443 if (err != 0) 1444 rv = 1; 1445 } else if (pound != NULL) { 1446 int err; 1447 nvlist_t *nvl; 1448 1449 if (cb.cb_dryrun) { 1450 (void) fprintf(stderr, 1451 "dryrun is not supported with bookmark\n"); 1452 return (-1); 1453 } 1454 1455 if (cb.cb_defer_destroy) { 1456 (void) fprintf(stderr, 1457 "defer destroy is not supported with bookmark\n"); 1458 return (-1); 1459 } 1460 1461 if (cb.cb_recurse) { 1462 (void) fprintf(stderr, 1463 "recursive is not supported with bookmark\n"); 1464 return (-1); 1465 } 1466 1467 if (!zfs_bookmark_exists(argv[0])) { 1468 (void) fprintf(stderr, gettext("bookmark '%s' " 1469 "does not exist.\n"), argv[0]); 1470 return (1); 1471 } 1472 1473 nvl = fnvlist_alloc(); 1474 fnvlist_add_boolean(nvl, argv[0]); 1475 1476 err = lzc_destroy_bookmarks(nvl, NULL); 1477 if (err != 0) { 1478 (void) zfs_standard_error(g_zfs, err, 1479 "cannot destroy bookmark"); 1480 } 1481 1482 nvlist_free(cb.cb_nvl); 1483 1484 return (err); 1485 } else { 1486 /* Open the given dataset */ 1487 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1488 return (1); 1489 1490 cb.cb_target = zhp; 1491 1492 /* 1493 * Perform an explicit check for pools before going any further. 1494 */ 1495 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1496 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1497 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1498 "operation does not apply to pools\n"), 1499 zfs_get_name(zhp)); 1500 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1501 "%s' to destroy all datasets in the pool\n"), 1502 zfs_get_name(zhp)); 1503 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1504 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1505 rv = 1; 1506 goto out; 1507 } 1508 1509 /* 1510 * Check for any dependents and/or clones. 1511 */ 1512 cb.cb_first = B_TRUE; 1513 if (!cb.cb_doclones && 1514 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1515 &cb) != 0) { 1516 rv = 1; 1517 goto out; 1518 } 1519 1520 if (cb.cb_error) { 1521 rv = 1; 1522 goto out; 1523 } 1524 1525 cb.cb_batchedsnaps = fnvlist_alloc(); 1526 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1527 &cb) != 0) { 1528 rv = 1; 1529 goto out; 1530 } 1531 1532 /* 1533 * Do the real thing. The callback will close the 1534 * handle regardless of whether it succeeds or not. 1535 */ 1536 err = destroy_callback(zhp, &cb); 1537 zhp = NULL; 1538 if (err == 0) { 1539 err = zfs_destroy_snaps_nvl(g_zfs, 1540 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1541 } 1542 if (err != 0) 1543 rv = 1; 1544 } 1545 1546 out: 1547 fnvlist_free(cb.cb_batchedsnaps); 1548 fnvlist_free(cb.cb_nvl); 1549 if (zhp != NULL) 1550 zfs_close(zhp); 1551 return (rv); 1552 } 1553 1554 static boolean_t 1555 is_recvd_column(zprop_get_cbdata_t *cbp) 1556 { 1557 int i; 1558 zfs_get_column_t col; 1559 1560 for (i = 0; i < ZFS_GET_NCOLS && 1561 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1562 if (col == GET_COL_RECVD) 1563 return (B_TRUE); 1564 return (B_FALSE); 1565 } 1566 1567 /* 1568 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1569 * < all | property[,property]... > < fs | snap | vol > ... 1570 * 1571 * -r recurse over any child datasets 1572 * -H scripted mode. Headers are stripped, and fields are separated 1573 * by tabs instead of spaces. 1574 * -o Set of fields to display. One of "name,property,value, 1575 * received,source". Default is "name,property,value,source". 1576 * "all" is an alias for all five. 1577 * -s Set of sources to allow. One of 1578 * "local,default,inherited,received,temporary,none". Default is 1579 * all six. 1580 * -p Display values in parsable (literal) format. 1581 * 1582 * Prints properties for the given datasets. The user can control which 1583 * columns to display as well as which property types to allow. 1584 */ 1585 1586 /* 1587 * Invoked to display the properties for a single dataset. 1588 */ 1589 static int 1590 get_callback(zfs_handle_t *zhp, void *data) 1591 { 1592 char buf[ZFS_MAXPROPLEN]; 1593 char rbuf[ZFS_MAXPROPLEN]; 1594 zprop_source_t sourcetype; 1595 char source[ZFS_MAX_DATASET_NAME_LEN]; 1596 zprop_get_cbdata_t *cbp = data; 1597 nvlist_t *user_props = zfs_get_user_props(zhp); 1598 zprop_list_t *pl = cbp->cb_proplist; 1599 nvlist_t *propval; 1600 char *strval; 1601 char *sourceval; 1602 boolean_t received = is_recvd_column(cbp); 1603 1604 for (; pl != NULL; pl = pl->pl_next) { 1605 char *recvdval = NULL; 1606 /* 1607 * Skip the special fake placeholder. This will also skip over 1608 * the name property when 'all' is specified. 1609 */ 1610 if (pl->pl_prop == ZFS_PROP_NAME && 1611 pl == cbp->cb_proplist) 1612 continue; 1613 1614 if (pl->pl_prop != ZPROP_INVAL) { 1615 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1616 sizeof (buf), &sourcetype, source, 1617 sizeof (source), 1618 cbp->cb_literal) != 0) { 1619 if (pl->pl_all) 1620 continue; 1621 if (!zfs_prop_valid_for_type(pl->pl_prop, 1622 ZFS_TYPE_DATASET)) { 1623 (void) fprintf(stderr, 1624 gettext("No such property '%s'\n"), 1625 zfs_prop_to_name(pl->pl_prop)); 1626 continue; 1627 } 1628 sourcetype = ZPROP_SRC_NONE; 1629 (void) strlcpy(buf, "-", sizeof (buf)); 1630 } 1631 1632 if (received && (zfs_prop_get_recvd(zhp, 1633 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1634 cbp->cb_literal) == 0)) 1635 recvdval = rbuf; 1636 1637 zprop_print_one_property(zfs_get_name(zhp), cbp, 1638 zfs_prop_to_name(pl->pl_prop), 1639 buf, sourcetype, source, recvdval); 1640 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1641 sourcetype = ZPROP_SRC_LOCAL; 1642 1643 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1644 buf, sizeof (buf), cbp->cb_literal) != 0) { 1645 sourcetype = ZPROP_SRC_NONE; 1646 (void) strlcpy(buf, "-", sizeof (buf)); 1647 } 1648 1649 zprop_print_one_property(zfs_get_name(zhp), cbp, 1650 pl->pl_user_prop, buf, sourcetype, source, NULL); 1651 } else if (zfs_prop_written(pl->pl_user_prop)) { 1652 sourcetype = ZPROP_SRC_LOCAL; 1653 1654 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1655 buf, sizeof (buf), cbp->cb_literal) != 0) { 1656 sourcetype = ZPROP_SRC_NONE; 1657 (void) strlcpy(buf, "-", sizeof (buf)); 1658 } 1659 1660 zprop_print_one_property(zfs_get_name(zhp), cbp, 1661 pl->pl_user_prop, buf, sourcetype, source, NULL); 1662 } else { 1663 if (nvlist_lookup_nvlist(user_props, 1664 pl->pl_user_prop, &propval) != 0) { 1665 if (pl->pl_all) 1666 continue; 1667 sourcetype = ZPROP_SRC_NONE; 1668 strval = "-"; 1669 } else { 1670 verify(nvlist_lookup_string(propval, 1671 ZPROP_VALUE, &strval) == 0); 1672 verify(nvlist_lookup_string(propval, 1673 ZPROP_SOURCE, &sourceval) == 0); 1674 1675 if (strcmp(sourceval, 1676 zfs_get_name(zhp)) == 0) { 1677 sourcetype = ZPROP_SRC_LOCAL; 1678 } else if (strcmp(sourceval, 1679 ZPROP_SOURCE_VAL_RECVD) == 0) { 1680 sourcetype = ZPROP_SRC_RECEIVED; 1681 } else { 1682 sourcetype = ZPROP_SRC_INHERITED; 1683 (void) strlcpy(source, 1684 sourceval, sizeof (source)); 1685 } 1686 } 1687 1688 if (received && (zfs_prop_get_recvd(zhp, 1689 pl->pl_user_prop, rbuf, sizeof (rbuf), 1690 cbp->cb_literal) == 0)) 1691 recvdval = rbuf; 1692 1693 zprop_print_one_property(zfs_get_name(zhp), cbp, 1694 pl->pl_user_prop, strval, sourcetype, 1695 source, recvdval); 1696 } 1697 } 1698 1699 return (0); 1700 } 1701 1702 static int 1703 zfs_do_get(int argc, char **argv) 1704 { 1705 zprop_get_cbdata_t cb = { 0 }; 1706 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1707 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1708 char *value, *fields; 1709 int ret = 0; 1710 int limit = 0; 1711 zprop_list_t fake_name = { 0 }; 1712 1713 /* 1714 * Set up default columns and sources. 1715 */ 1716 cb.cb_sources = ZPROP_SRC_ALL; 1717 cb.cb_columns[0] = GET_COL_NAME; 1718 cb.cb_columns[1] = GET_COL_PROPERTY; 1719 cb.cb_columns[2] = GET_COL_VALUE; 1720 cb.cb_columns[3] = GET_COL_SOURCE; 1721 cb.cb_type = ZFS_TYPE_DATASET; 1722 1723 /* check options */ 1724 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1725 switch (c) { 1726 case 'p': 1727 cb.cb_literal = B_TRUE; 1728 break; 1729 case 'd': 1730 limit = parse_depth(optarg, &flags); 1731 break; 1732 case 'r': 1733 flags |= ZFS_ITER_RECURSE; 1734 break; 1735 case 'H': 1736 cb.cb_scripted = B_TRUE; 1737 break; 1738 case ':': 1739 (void) fprintf(stderr, gettext("missing argument for " 1740 "'%c' option\n"), optopt); 1741 usage(B_FALSE); 1742 break; 1743 case 'o': 1744 /* 1745 * Process the set of columns to display. We zero out 1746 * the structure to give us a blank slate. 1747 */ 1748 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1749 i = 0; 1750 while (*optarg != '\0') { 1751 static char *col_subopts[] = 1752 { "name", "property", "value", "received", 1753 "source", "all", NULL }; 1754 1755 if (i == ZFS_GET_NCOLS) { 1756 (void) fprintf(stderr, gettext("too " 1757 "many fields given to -o " 1758 "option\n")); 1759 usage(B_FALSE); 1760 } 1761 1762 switch (getsubopt(&optarg, col_subopts, 1763 &value)) { 1764 case 0: 1765 cb.cb_columns[i++] = GET_COL_NAME; 1766 break; 1767 case 1: 1768 cb.cb_columns[i++] = GET_COL_PROPERTY; 1769 break; 1770 case 2: 1771 cb.cb_columns[i++] = GET_COL_VALUE; 1772 break; 1773 case 3: 1774 cb.cb_columns[i++] = GET_COL_RECVD; 1775 flags |= ZFS_ITER_RECVD_PROPS; 1776 break; 1777 case 4: 1778 cb.cb_columns[i++] = GET_COL_SOURCE; 1779 break; 1780 case 5: 1781 if (i > 0) { 1782 (void) fprintf(stderr, 1783 gettext("\"all\" conflicts " 1784 "with specific fields " 1785 "given to -o option\n")); 1786 usage(B_FALSE); 1787 } 1788 cb.cb_columns[0] = GET_COL_NAME; 1789 cb.cb_columns[1] = GET_COL_PROPERTY; 1790 cb.cb_columns[2] = GET_COL_VALUE; 1791 cb.cb_columns[3] = GET_COL_RECVD; 1792 cb.cb_columns[4] = GET_COL_SOURCE; 1793 flags |= ZFS_ITER_RECVD_PROPS; 1794 i = ZFS_GET_NCOLS; 1795 break; 1796 default: 1797 (void) fprintf(stderr, 1798 gettext("invalid column name " 1799 "'%s'\n"), value); 1800 usage(B_FALSE); 1801 } 1802 } 1803 break; 1804 1805 case 's': 1806 cb.cb_sources = 0; 1807 while (*optarg != '\0') { 1808 static char *source_subopts[] = { 1809 "local", "default", "inherited", 1810 "received", "temporary", "none", 1811 NULL }; 1812 1813 switch (getsubopt(&optarg, source_subopts, 1814 &value)) { 1815 case 0: 1816 cb.cb_sources |= ZPROP_SRC_LOCAL; 1817 break; 1818 case 1: 1819 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1820 break; 1821 case 2: 1822 cb.cb_sources |= ZPROP_SRC_INHERITED; 1823 break; 1824 case 3: 1825 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1826 break; 1827 case 4: 1828 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1829 break; 1830 case 5: 1831 cb.cb_sources |= ZPROP_SRC_NONE; 1832 break; 1833 default: 1834 (void) fprintf(stderr, 1835 gettext("invalid source " 1836 "'%s'\n"), value); 1837 usage(B_FALSE); 1838 } 1839 } 1840 break; 1841 1842 case 't': 1843 types = 0; 1844 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1845 while (*optarg != '\0') { 1846 static char *type_subopts[] = { "filesystem", 1847 "volume", "snapshot", "bookmark", 1848 "all", NULL }; 1849 1850 switch (getsubopt(&optarg, type_subopts, 1851 &value)) { 1852 case 0: 1853 types |= ZFS_TYPE_FILESYSTEM; 1854 break; 1855 case 1: 1856 types |= ZFS_TYPE_VOLUME; 1857 break; 1858 case 2: 1859 types |= ZFS_TYPE_SNAPSHOT; 1860 break; 1861 case 3: 1862 types |= ZFS_TYPE_BOOKMARK; 1863 break; 1864 case 4: 1865 types = ZFS_TYPE_DATASET | 1866 ZFS_TYPE_BOOKMARK; 1867 break; 1868 1869 default: 1870 (void) fprintf(stderr, 1871 gettext("invalid type '%s'\n"), 1872 value); 1873 usage(B_FALSE); 1874 } 1875 } 1876 break; 1877 1878 case '?': 1879 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1880 optopt); 1881 usage(B_FALSE); 1882 } 1883 } 1884 1885 argc -= optind; 1886 argv += optind; 1887 1888 if (argc < 1) { 1889 (void) fprintf(stderr, gettext("missing property " 1890 "argument\n")); 1891 usage(B_FALSE); 1892 } 1893 1894 fields = argv[0]; 1895 1896 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1897 != 0) 1898 usage(B_FALSE); 1899 1900 argc--; 1901 argv++; 1902 1903 /* 1904 * As part of zfs_expand_proplist(), we keep track of the maximum column 1905 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1906 * need to know the maximum name length. However, the user likely did 1907 * not specify 'name' as one of the properties to fetch, so we need to 1908 * make sure we always include at least this property for 1909 * print_get_headers() to work properly. 1910 */ 1911 if (cb.cb_proplist != NULL) { 1912 fake_name.pl_prop = ZFS_PROP_NAME; 1913 fake_name.pl_width = strlen(gettext("NAME")); 1914 fake_name.pl_next = cb.cb_proplist; 1915 cb.cb_proplist = &fake_name; 1916 } 1917 1918 cb.cb_first = B_TRUE; 1919 1920 /* run for each object */ 1921 ret = zfs_for_each(argc, argv, flags, types, NULL, 1922 &cb.cb_proplist, limit, get_callback, &cb); 1923 1924 if (cb.cb_proplist == &fake_name) 1925 zprop_free_list(fake_name.pl_next); 1926 else 1927 zprop_free_list(cb.cb_proplist); 1928 1929 return (ret); 1930 } 1931 1932 /* 1933 * inherit [-rS] <property> <fs|vol> ... 1934 * 1935 * -r Recurse over all children 1936 * -S Revert to received value, if any 1937 * 1938 * For each dataset specified on the command line, inherit the given property 1939 * from its parent. Inheriting a property at the pool level will cause it to 1940 * use the default value. The '-r' flag will recurse over all children, and is 1941 * useful for setting a property on a hierarchy-wide basis, regardless of any 1942 * local modifications for each dataset. 1943 */ 1944 1945 typedef struct inherit_cbdata { 1946 const char *cb_propname; 1947 boolean_t cb_received; 1948 } inherit_cbdata_t; 1949 1950 static int 1951 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1952 { 1953 inherit_cbdata_t *cb = data; 1954 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1955 1956 /* 1957 * If we're doing it recursively, then ignore properties that 1958 * are not valid for this type of dataset. 1959 */ 1960 if (prop != ZPROP_INVAL && 1961 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1962 return (0); 1963 1964 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1965 } 1966 1967 static int 1968 inherit_cb(zfs_handle_t *zhp, void *data) 1969 { 1970 inherit_cbdata_t *cb = data; 1971 1972 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1973 } 1974 1975 static int 1976 zfs_do_inherit(int argc, char **argv) 1977 { 1978 int c; 1979 zfs_prop_t prop; 1980 inherit_cbdata_t cb = { 0 }; 1981 char *propname; 1982 int ret = 0; 1983 int flags = 0; 1984 boolean_t received = B_FALSE; 1985 1986 /* check options */ 1987 while ((c = getopt(argc, argv, "rS")) != -1) { 1988 switch (c) { 1989 case 'r': 1990 flags |= ZFS_ITER_RECURSE; 1991 break; 1992 case 'S': 1993 received = B_TRUE; 1994 break; 1995 case '?': 1996 default: 1997 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1998 optopt); 1999 usage(B_FALSE); 2000 } 2001 } 2002 2003 argc -= optind; 2004 argv += optind; 2005 2006 /* check number of arguments */ 2007 if (argc < 1) { 2008 (void) fprintf(stderr, gettext("missing property argument\n")); 2009 usage(B_FALSE); 2010 } 2011 if (argc < 2) { 2012 (void) fprintf(stderr, gettext("missing dataset argument\n")); 2013 usage(B_FALSE); 2014 } 2015 2016 propname = argv[0]; 2017 argc--; 2018 argv++; 2019 2020 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 2021 if (zfs_prop_readonly(prop)) { 2022 (void) fprintf(stderr, gettext( 2023 "%s property is read-only\n"), 2024 propname); 2025 return (1); 2026 } 2027 if (!zfs_prop_inheritable(prop) && !received) { 2028 (void) fprintf(stderr, gettext("'%s' property cannot " 2029 "be inherited\n"), propname); 2030 if (prop == ZFS_PROP_QUOTA || 2031 prop == ZFS_PROP_RESERVATION || 2032 prop == ZFS_PROP_REFQUOTA || 2033 prop == ZFS_PROP_REFRESERVATION) { 2034 (void) fprintf(stderr, gettext("use 'zfs set " 2035 "%s=none' to clear\n"), propname); 2036 (void) fprintf(stderr, gettext("use 'zfs " 2037 "inherit -S %s' to revert to received " 2038 "value\n"), propname); 2039 } 2040 return (1); 2041 } 2042 if (received && (prop == ZFS_PROP_VOLSIZE || 2043 prop == ZFS_PROP_VERSION)) { 2044 (void) fprintf(stderr, gettext("'%s' property cannot " 2045 "be reverted to a received value\n"), propname); 2046 return (1); 2047 } 2048 } else if (!zfs_prop_user(propname)) { 2049 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 2050 propname); 2051 usage(B_FALSE); 2052 } 2053 2054 cb.cb_propname = propname; 2055 cb.cb_received = received; 2056 2057 if (flags & ZFS_ITER_RECURSE) { 2058 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2059 NULL, NULL, 0, inherit_recurse_cb, &cb); 2060 } else { 2061 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2062 NULL, NULL, 0, inherit_cb, &cb); 2063 } 2064 2065 return (ret); 2066 } 2067 2068 typedef struct upgrade_cbdata { 2069 uint64_t cb_numupgraded; 2070 uint64_t cb_numsamegraded; 2071 uint64_t cb_numfailed; 2072 uint64_t cb_version; 2073 boolean_t cb_newer; 2074 boolean_t cb_foundone; 2075 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 2076 } upgrade_cbdata_t; 2077 2078 static int 2079 same_pool(zfs_handle_t *zhp, const char *name) 2080 { 2081 int len1 = strcspn(name, "/@"); 2082 const char *zhname = zfs_get_name(zhp); 2083 int len2 = strcspn(zhname, "/@"); 2084 2085 if (len1 != len2) 2086 return (B_FALSE); 2087 return (strncmp(name, zhname, len1) == 0); 2088 } 2089 2090 static int 2091 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2092 { 2093 upgrade_cbdata_t *cb = data; 2094 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2095 2096 /* list if it's old/new */ 2097 if ((!cb->cb_newer && version < ZPL_VERSION) || 2098 (cb->cb_newer && version > ZPL_VERSION)) { 2099 char *str; 2100 if (cb->cb_newer) { 2101 str = gettext("The following filesystems are " 2102 "formatted using a newer software version and\n" 2103 "cannot be accessed on the current system.\n\n"); 2104 } else { 2105 str = gettext("The following filesystems are " 2106 "out of date, and can be upgraded. After being\n" 2107 "upgraded, these filesystems (and any 'zfs send' " 2108 "streams generated from\n" 2109 "subsequent snapshots) will no longer be " 2110 "accessible by older software versions.\n\n"); 2111 } 2112 2113 if (!cb->cb_foundone) { 2114 (void) puts(str); 2115 (void) printf(gettext("VER FILESYSTEM\n")); 2116 (void) printf(gettext("--- ------------\n")); 2117 cb->cb_foundone = B_TRUE; 2118 } 2119 2120 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2121 } 2122 2123 return (0); 2124 } 2125 2126 static int 2127 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2128 { 2129 upgrade_cbdata_t *cb = data; 2130 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2131 int needed_spa_version; 2132 int spa_version; 2133 2134 if (zfs_spa_version(zhp, &spa_version) < 0) 2135 return (-1); 2136 2137 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2138 2139 if (needed_spa_version < 0) 2140 return (-1); 2141 2142 if (spa_version < needed_spa_version) { 2143 /* can't upgrade */ 2144 (void) printf(gettext("%s: can not be " 2145 "upgraded; the pool version needs to first " 2146 "be upgraded\nto version %d\n\n"), 2147 zfs_get_name(zhp), needed_spa_version); 2148 cb->cb_numfailed++; 2149 return (0); 2150 } 2151 2152 /* upgrade */ 2153 if (version < cb->cb_version) { 2154 char verstr[16]; 2155 (void) snprintf(verstr, sizeof (verstr), 2156 "%llu", cb->cb_version); 2157 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2158 /* 2159 * If they did "zfs upgrade -a", then we could 2160 * be doing ioctls to different pools. We need 2161 * to log this history once to each pool, and bypass 2162 * the normal history logging that happens in main(). 2163 */ 2164 (void) zpool_log_history(g_zfs, history_str); 2165 log_history = B_FALSE; 2166 } 2167 if (zfs_prop_set(zhp, "version", verstr) == 0) 2168 cb->cb_numupgraded++; 2169 else 2170 cb->cb_numfailed++; 2171 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2172 } else if (version > cb->cb_version) { 2173 /* can't downgrade */ 2174 (void) printf(gettext("%s: can not be downgraded; " 2175 "it is already at version %u\n"), 2176 zfs_get_name(zhp), version); 2177 cb->cb_numfailed++; 2178 } else { 2179 cb->cb_numsamegraded++; 2180 } 2181 return (0); 2182 } 2183 2184 /* 2185 * zfs upgrade 2186 * zfs upgrade -v 2187 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2188 */ 2189 static int 2190 zfs_do_upgrade(int argc, char **argv) 2191 { 2192 boolean_t all = B_FALSE; 2193 boolean_t showversions = B_FALSE; 2194 int ret = 0; 2195 upgrade_cbdata_t cb = { 0 }; 2196 char c; 2197 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2198 2199 /* check options */ 2200 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2201 switch (c) { 2202 case 'r': 2203 flags |= ZFS_ITER_RECURSE; 2204 break; 2205 case 'v': 2206 showversions = B_TRUE; 2207 break; 2208 case 'V': 2209 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2210 optarg, &cb.cb_version) != 0) { 2211 (void) fprintf(stderr, 2212 gettext("invalid version %s\n"), optarg); 2213 usage(B_FALSE); 2214 } 2215 break; 2216 case 'a': 2217 all = B_TRUE; 2218 break; 2219 case '?': 2220 default: 2221 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2222 optopt); 2223 usage(B_FALSE); 2224 } 2225 } 2226 2227 argc -= optind; 2228 argv += optind; 2229 2230 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2231 usage(B_FALSE); 2232 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2233 cb.cb_version || argc)) 2234 usage(B_FALSE); 2235 if ((all || argc) && (showversions)) 2236 usage(B_FALSE); 2237 if (all && argc) 2238 usage(B_FALSE); 2239 2240 if (showversions) { 2241 /* Show info on available versions. */ 2242 (void) printf(gettext("The following filesystem versions are " 2243 "supported:\n\n")); 2244 (void) printf(gettext("VER DESCRIPTION\n")); 2245 (void) printf("--- -----------------------------------------" 2246 "---------------\n"); 2247 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2248 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2249 (void) printf(gettext(" 3 Case insensitive and filesystem " 2250 "user identifier (FUID)\n")); 2251 (void) printf(gettext(" 4 userquota, groupquota " 2252 "properties\n")); 2253 (void) printf(gettext(" 5 System attributes\n")); 2254 (void) printf(gettext("\nFor more information on a particular " 2255 "version, including supported releases,\n")); 2256 (void) printf("see the ZFS Administration Guide.\n\n"); 2257 ret = 0; 2258 } else if (argc || all) { 2259 /* Upgrade filesystems */ 2260 if (cb.cb_version == 0) 2261 cb.cb_version = ZPL_VERSION; 2262 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2263 NULL, NULL, 0, upgrade_set_callback, &cb); 2264 (void) printf(gettext("%llu filesystems upgraded\n"), 2265 cb.cb_numupgraded); 2266 if (cb.cb_numsamegraded) { 2267 (void) printf(gettext("%llu filesystems already at " 2268 "this version\n"), 2269 cb.cb_numsamegraded); 2270 } 2271 if (cb.cb_numfailed != 0) 2272 ret = 1; 2273 } else { 2274 /* List old-version filesystems */ 2275 boolean_t found; 2276 (void) printf(gettext("This system is currently running " 2277 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2278 2279 flags |= ZFS_ITER_RECURSE; 2280 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2281 NULL, NULL, 0, upgrade_list_callback, &cb); 2282 2283 found = cb.cb_foundone; 2284 cb.cb_foundone = B_FALSE; 2285 cb.cb_newer = B_TRUE; 2286 2287 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2288 NULL, NULL, 0, upgrade_list_callback, &cb); 2289 2290 if (!cb.cb_foundone && !found) { 2291 (void) printf(gettext("All filesystems are " 2292 "formatted with the current version.\n")); 2293 } 2294 } 2295 2296 return (ret); 2297 } 2298 2299 /* 2300 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2301 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2302 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2303 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2304 * zfs projectspace [-Hp] [-o field[,...]] [-s field [-s field]...] 2305 * [-S field [-S field]...] filesystem | snapshot 2306 * 2307 * -H Scripted mode; elide headers and separate columns by tabs. 2308 * -i Translate SID to POSIX ID. 2309 * -n Print numeric ID instead of user/group name. 2310 * -o Control which fields to display. 2311 * -p Use exact (parsable) numeric output. 2312 * -s Specify sort columns, descending order. 2313 * -S Specify sort columns, ascending order. 2314 * -t Control which object types to display. 2315 * 2316 * Displays space consumed by, and quotas on, each user in the specified 2317 * filesystem or snapshot. 2318 */ 2319 2320 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2321 enum us_field_types { 2322 USFIELD_TYPE, 2323 USFIELD_NAME, 2324 USFIELD_USED, 2325 USFIELD_QUOTA, 2326 USFIELD_OBJUSED, 2327 USFIELD_OBJQUOTA 2328 }; 2329 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA", 2330 "OBJUSED", "OBJQUOTA" }; 2331 static char *us_field_names[] = { "type", "name", "used", "quota", 2332 "objused", "objquota" }; 2333 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2334 2335 #define USTYPE_PSX_GRP (1 << 0) 2336 #define USTYPE_PSX_USR (1 << 1) 2337 #define USTYPE_SMB_GRP (1 << 2) 2338 #define USTYPE_SMB_USR (1 << 3) 2339 #define USTYPE_PROJ (1 << 4) 2340 #define USTYPE_ALL \ 2341 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR | \ 2342 USTYPE_PROJ) 2343 2344 static int us_type_bits[] = { 2345 USTYPE_PSX_GRP, 2346 USTYPE_PSX_USR, 2347 USTYPE_SMB_GRP, 2348 USTYPE_SMB_USR, 2349 USTYPE_ALL 2350 }; 2351 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2352 "smbuser", "all" }; 2353 2354 typedef struct us_node { 2355 nvlist_t *usn_nvl; 2356 uu_avl_node_t usn_avlnode; 2357 uu_list_node_t usn_listnode; 2358 } us_node_t; 2359 2360 typedef struct us_cbdata { 2361 nvlist_t **cb_nvlp; 2362 uu_avl_pool_t *cb_avl_pool; 2363 uu_avl_t *cb_avl; 2364 boolean_t cb_numname; 2365 boolean_t cb_nicenum; 2366 boolean_t cb_sid2posix; 2367 zfs_userquota_prop_t cb_prop; 2368 zfs_sort_column_t *cb_sortcol; 2369 size_t cb_width[USFIELD_LAST]; 2370 } us_cbdata_t; 2371 2372 static boolean_t us_populated = B_FALSE; 2373 2374 typedef struct { 2375 zfs_sort_column_t *si_sortcol; 2376 boolean_t si_numname; 2377 } us_sort_info_t; 2378 2379 static int 2380 us_field_index(char *field) 2381 { 2382 int i; 2383 2384 for (i = 0; i < USFIELD_LAST; i++) { 2385 if (strcmp(field, us_field_names[i]) == 0) 2386 return (i); 2387 } 2388 2389 return (-1); 2390 } 2391 2392 static int 2393 us_compare(const void *larg, const void *rarg, void *unused) 2394 { 2395 const us_node_t *l = larg; 2396 const us_node_t *r = rarg; 2397 us_sort_info_t *si = (us_sort_info_t *)unused; 2398 zfs_sort_column_t *sortcol = si->si_sortcol; 2399 boolean_t numname = si->si_numname; 2400 nvlist_t *lnvl = l->usn_nvl; 2401 nvlist_t *rnvl = r->usn_nvl; 2402 int rc = 0; 2403 boolean_t lvb, rvb; 2404 2405 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2406 char *lvstr = ""; 2407 char *rvstr = ""; 2408 uint32_t lv32 = 0; 2409 uint32_t rv32 = 0; 2410 uint64_t lv64 = 0; 2411 uint64_t rv64 = 0; 2412 zfs_prop_t prop = sortcol->sc_prop; 2413 const char *propname = NULL; 2414 boolean_t reverse = sortcol->sc_reverse; 2415 2416 switch (prop) { 2417 case ZFS_PROP_TYPE: 2418 propname = "type"; 2419 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2420 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2421 if (rv32 != lv32) 2422 rc = (rv32 < lv32) ? 1 : -1; 2423 break; 2424 case ZFS_PROP_NAME: 2425 propname = "name"; 2426 if (numname) { 2427 (void) nvlist_lookup_uint64(lnvl, propname, 2428 &lv64); 2429 (void) nvlist_lookup_uint64(rnvl, propname, 2430 &rv64); 2431 if (rv64 != lv64) 2432 rc = (rv64 < lv64) ? 1 : -1; 2433 } else { 2434 (void) nvlist_lookup_string(lnvl, propname, 2435 &lvstr); 2436 (void) nvlist_lookup_string(rnvl, propname, 2437 &rvstr); 2438 rc = strcmp(lvstr, rvstr); 2439 } 2440 break; 2441 case ZFS_PROP_USED: 2442 case ZFS_PROP_QUOTA: 2443 if (!us_populated) 2444 break; 2445 if (prop == ZFS_PROP_USED) 2446 propname = "used"; 2447 else 2448 propname = "quota"; 2449 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2450 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2451 if (rv64 != lv64) 2452 rc = (rv64 < lv64) ? 1 : -1; 2453 break; 2454 2455 default: 2456 break; 2457 } 2458 2459 if (rc != 0) { 2460 if (rc < 0) 2461 return (reverse ? 1 : -1); 2462 else 2463 return (reverse ? -1 : 1); 2464 } 2465 } 2466 2467 /* 2468 * If entries still seem to be the same, check if they are of the same 2469 * type (smbentity is added only if we are doing SID to POSIX ID 2470 * translation where we can have duplicate type/name combinations). 2471 */ 2472 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2473 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2474 lvb != rvb) 2475 return (lvb < rvb ? -1 : 1); 2476 2477 return (0); 2478 } 2479 2480 static boolean_t 2481 zfs_prop_is_user(unsigned p) 2482 { 2483 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA || 2484 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA); 2485 } 2486 2487 static boolean_t 2488 zfs_prop_is_group(unsigned p) 2489 { 2490 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA || 2491 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA); 2492 } 2493 2494 static boolean_t 2495 zfs_prop_is_project(unsigned p) 2496 { 2497 return (p == ZFS_PROP_PROJECTUSED || p == ZFS_PROP_PROJECTQUOTA || 2498 p == ZFS_PROP_PROJECTOBJUSED || p == ZFS_PROP_PROJECTOBJQUOTA); 2499 } 2500 2501 static inline const char * 2502 us_type2str(unsigned field_type) 2503 { 2504 switch (field_type) { 2505 case USTYPE_PSX_USR: 2506 return ("POSIX User"); 2507 case USTYPE_PSX_GRP: 2508 return ("POSIX Group"); 2509 case USTYPE_SMB_USR: 2510 return ("SMB User"); 2511 case USTYPE_SMB_GRP: 2512 return ("SMB Group"); 2513 case USTYPE_PROJ: 2514 return ("Project"); 2515 default: 2516 return ("Undefined"); 2517 } 2518 } 2519 2520 static int 2521 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2522 { 2523 us_cbdata_t *cb = (us_cbdata_t *)arg; 2524 zfs_userquota_prop_t prop = cb->cb_prop; 2525 char *name = NULL; 2526 char *propname; 2527 char sizebuf[32]; 2528 us_node_t *node; 2529 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2530 uu_avl_t *avl = cb->cb_avl; 2531 uu_avl_index_t idx; 2532 nvlist_t *props; 2533 us_node_t *n; 2534 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2535 unsigned type = 0; 2536 const char *typestr; 2537 size_t namelen; 2538 size_t typelen; 2539 size_t sizelen; 2540 int typeidx, nameidx, sizeidx; 2541 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2542 boolean_t smbentity = B_FALSE; 2543 2544 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2545 nomem(); 2546 node = safe_malloc(sizeof (us_node_t)); 2547 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2548 node->usn_nvl = props; 2549 2550 if (domain != NULL && domain[0] != '\0') { 2551 /* SMB */ 2552 char sid[MAXNAMELEN + 32]; 2553 uid_t id; 2554 int err; 2555 int flag = IDMAP_REQ_FLG_USE_CACHE; 2556 2557 smbentity = B_TRUE; 2558 2559 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2560 2561 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2562 type = USTYPE_SMB_GRP; 2563 err = sid_to_id(sid, B_FALSE, &id); 2564 } else { 2565 type = USTYPE_SMB_USR; 2566 err = sid_to_id(sid, B_TRUE, &id); 2567 } 2568 2569 if (err == 0) { 2570 rid = id; 2571 if (!cb->cb_sid2posix) { 2572 if (type == USTYPE_SMB_USR) { 2573 (void) idmap_getwinnamebyuid(rid, flag, 2574 &name, NULL); 2575 } else { 2576 (void) idmap_getwinnamebygid(rid, flag, 2577 &name, NULL); 2578 } 2579 if (name == NULL) 2580 name = sid; 2581 } 2582 } 2583 } 2584 2585 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2586 /* POSIX or -i */ 2587 if (zfs_prop_is_group(prop)) { 2588 type = USTYPE_PSX_GRP; 2589 if (!cb->cb_numname) { 2590 struct group *g; 2591 2592 if ((g = getgrgid(rid)) != NULL) 2593 name = g->gr_name; 2594 } 2595 } else if (zfs_prop_is_user(prop)) { 2596 type = USTYPE_PSX_USR; 2597 if (!cb->cb_numname) { 2598 struct passwd *p; 2599 2600 if ((p = getpwuid(rid)) != NULL) 2601 name = p->pw_name; 2602 } 2603 } else { 2604 type = USTYPE_PROJ; 2605 } 2606 } 2607 2608 /* 2609 * Make sure that the type/name combination is unique when doing 2610 * SID to POSIX ID translation (hence changing the type from SMB to 2611 * POSIX). 2612 */ 2613 if (cb->cb_sid2posix && 2614 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2615 nomem(); 2616 2617 /* Calculate/update width of TYPE field */ 2618 typestr = us_type2str(type); 2619 typelen = strlen(gettext(typestr)); 2620 typeidx = us_field_index("type"); 2621 if (typelen > cb->cb_width[typeidx]) 2622 cb->cb_width[typeidx] = typelen; 2623 if (nvlist_add_uint32(props, "type", type) != 0) 2624 nomem(); 2625 2626 /* Calculate/update width of NAME field */ 2627 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2628 if (nvlist_add_uint64(props, "name", rid) != 0) 2629 nomem(); 2630 namelen = snprintf(NULL, 0, "%u", rid); 2631 } else { 2632 if (nvlist_add_string(props, "name", name) != 0) 2633 nomem(); 2634 namelen = strlen(name); 2635 } 2636 nameidx = us_field_index("name"); 2637 if (namelen > cb->cb_width[nameidx]) 2638 cb->cb_width[nameidx] = namelen; 2639 2640 /* 2641 * Check if this type/name combination is in the list and update it; 2642 * otherwise add new node to the list. 2643 */ 2644 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2645 uu_avl_insert(avl, node, idx); 2646 } else { 2647 nvlist_free(props); 2648 free(node); 2649 node = n; 2650 props = node->usn_nvl; 2651 } 2652 2653 /* Calculate/update width of USED/QUOTA fields */ 2654 if (cb->cb_nicenum) { 2655 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2656 prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2657 prop == ZFS_PROP_PROJECTUSED || 2658 prop == ZFS_PROP_PROJECTQUOTA) { 2659 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2660 } else { 2661 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2662 } 2663 } else { 2664 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2665 } 2666 sizelen = strlen(sizebuf); 2667 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2668 prop == ZFS_PROP_PROJECTUSED) { 2669 propname = "used"; 2670 if (!nvlist_exists(props, "quota")) 2671 (void) nvlist_add_uint64(props, "quota", 0); 2672 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2673 prop == ZFS_PROP_PROJECTQUOTA) { 2674 propname = "quota"; 2675 if (!nvlist_exists(props, "used")) 2676 (void) nvlist_add_uint64(props, "used", 0); 2677 } else if (prop == ZFS_PROP_USEROBJUSED || 2678 prop == ZFS_PROP_GROUPOBJUSED || prop == ZFS_PROP_PROJECTOBJUSED) { 2679 propname = "objused"; 2680 if (!nvlist_exists(props, "objquota")) 2681 (void) nvlist_add_uint64(props, "objquota", 0); 2682 } else if (prop == ZFS_PROP_USEROBJQUOTA || 2683 prop == ZFS_PROP_GROUPOBJQUOTA || 2684 prop == ZFS_PROP_PROJECTOBJQUOTA) { 2685 propname = "objquota"; 2686 if (!nvlist_exists(props, "objused")) 2687 (void) nvlist_add_uint64(props, "objused", 0); 2688 } else { 2689 return (-1); 2690 } 2691 sizeidx = us_field_index(propname); 2692 if (sizelen > cb->cb_width[sizeidx]) 2693 cb->cb_width[sizeidx] = sizelen; 2694 2695 if (nvlist_add_uint64(props, propname, space) != 0) 2696 nomem(); 2697 2698 return (0); 2699 } 2700 2701 static void 2702 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2703 size_t *width, us_node_t *node) 2704 { 2705 nvlist_t *nvl = node->usn_nvl; 2706 char valstr[MAXNAMELEN]; 2707 boolean_t first = B_TRUE; 2708 int cfield = 0; 2709 int field; 2710 uint32_t ustype; 2711 2712 /* Check type */ 2713 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2714 if (!(ustype & types)) 2715 return; 2716 2717 while ((field = fields[cfield]) != USFIELD_LAST) { 2718 nvpair_t *nvp = NULL; 2719 data_type_t type; 2720 uint32_t val32; 2721 uint64_t val64; 2722 char *strval = "-"; 2723 2724 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2725 if (strcmp(nvpair_name(nvp), 2726 us_field_names[field]) == 0) 2727 break; 2728 } 2729 2730 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp); 2731 switch (type) { 2732 case DATA_TYPE_UINT32: 2733 (void) nvpair_value_uint32(nvp, &val32); 2734 break; 2735 case DATA_TYPE_UINT64: 2736 (void) nvpair_value_uint64(nvp, &val64); 2737 break; 2738 case DATA_TYPE_STRING: 2739 (void) nvpair_value_string(nvp, &strval); 2740 break; 2741 case DATA_TYPE_UNKNOWN: 2742 break; 2743 default: 2744 (void) fprintf(stderr, "invalid data type\n"); 2745 } 2746 2747 switch (field) { 2748 case USFIELD_TYPE: 2749 if (type == DATA_TYPE_UINT32) 2750 strval = (char *)us_type2str(val32); 2751 break; 2752 case USFIELD_NAME: 2753 if (type == DATA_TYPE_UINT64) { 2754 (void) sprintf(valstr, "%llu", val64); 2755 strval = valstr; 2756 } 2757 break; 2758 case USFIELD_USED: 2759 case USFIELD_QUOTA: 2760 case USFIELD_OBJUSED: 2761 case USFIELD_OBJQUOTA: 2762 if (type == DATA_TYPE_UINT64) { 2763 if (parsable) { 2764 (void) sprintf(valstr, "%llu", val64); 2765 } else { 2766 zfs_nicenum(val64, valstr, 2767 sizeof (valstr)); 2768 } 2769 if ((field == USFIELD_QUOTA || 2770 field == USFIELD_OBJQUOTA) && 2771 strcmp(valstr, "0") == 0) 2772 strval = "none"; 2773 else 2774 strval = valstr; 2775 } 2776 break; 2777 } 2778 2779 if (!first) { 2780 if (scripted) 2781 (void) printf("\t"); 2782 else 2783 (void) printf(" "); 2784 } 2785 if (scripted) 2786 (void) printf("%s", strval); 2787 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2788 (void) printf("%-*s", width[field], strval); 2789 else 2790 (void) printf("%*s", width[field], strval); 2791 2792 first = B_FALSE; 2793 cfield++; 2794 } 2795 2796 (void) printf("\n"); 2797 } 2798 2799 static void 2800 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2801 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2802 { 2803 us_node_t *node; 2804 const char *col; 2805 int cfield = 0; 2806 int field; 2807 2808 if (!scripted) { 2809 boolean_t first = B_TRUE; 2810 2811 while ((field = fields[cfield]) != USFIELD_LAST) { 2812 col = gettext(us_field_hdr[field]); 2813 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2814 (void) printf(first ? "%-*s" : " %-*s", 2815 width[field], col); 2816 } else { 2817 (void) printf(first ? "%*s" : " %*s", 2818 width[field], col); 2819 } 2820 first = B_FALSE; 2821 cfield++; 2822 } 2823 (void) printf("\n"); 2824 } 2825 2826 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2827 print_us_node(scripted, parsable, fields, types, width, node); 2828 if (rmnode) 2829 nvlist_free(node->usn_nvl); 2830 } 2831 } 2832 2833 static int 2834 zfs_do_userspace(int argc, char **argv) 2835 { 2836 zfs_handle_t *zhp; 2837 zfs_userquota_prop_t p; 2838 uu_avl_pool_t *avl_pool; 2839 uu_avl_t *avl_tree; 2840 uu_avl_walk_t *walk; 2841 char *delim; 2842 char deffields[] = "type,name,used,quota,objused,objquota"; 2843 char *ofield = NULL; 2844 char *tfield = NULL; 2845 int cfield = 0; 2846 int fields[256]; 2847 int i; 2848 boolean_t scripted = B_FALSE; 2849 boolean_t prtnum = B_FALSE; 2850 boolean_t parsable = B_FALSE; 2851 boolean_t sid2posix = B_FALSE; 2852 int ret = 0; 2853 int c; 2854 zfs_sort_column_t *sortcol = NULL; 2855 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2856 us_cbdata_t cb; 2857 us_node_t *node; 2858 us_node_t *rmnode; 2859 uu_list_pool_t *listpool; 2860 uu_list_t *list; 2861 uu_avl_index_t idx = 0; 2862 uu_list_index_t idx2 = 0; 2863 2864 if (argc < 2) 2865 usage(B_FALSE); 2866 2867 if (strcmp(argv[0], "groupspace") == 0) { 2868 /* Toggle default group types */ 2869 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2870 } else if (strcmp(argv[0], "projectspace") == 0) { 2871 types = USTYPE_PROJ; 2872 prtnum = B_TRUE; 2873 } 2874 2875 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2876 switch (c) { 2877 case 'n': 2878 if (types == USTYPE_PROJ) { 2879 (void) fprintf(stderr, 2880 gettext("invalid option 'n'\n")); 2881 usage(B_FALSE); 2882 } 2883 prtnum = B_TRUE; 2884 break; 2885 case 'H': 2886 scripted = B_TRUE; 2887 break; 2888 case 'p': 2889 parsable = B_TRUE; 2890 break; 2891 case 'o': 2892 ofield = optarg; 2893 break; 2894 case 's': 2895 case 'S': 2896 if (zfs_add_sort_column(&sortcol, optarg, 2897 c == 's' ? B_FALSE : B_TRUE) != 0) { 2898 (void) fprintf(stderr, 2899 gettext("invalid field '%s'\n"), optarg); 2900 usage(B_FALSE); 2901 } 2902 break; 2903 case 't': 2904 if (types == USTYPE_PROJ) { 2905 (void) fprintf(stderr, 2906 gettext("invalid option 't'\n")); 2907 usage(B_FALSE); 2908 } 2909 tfield = optarg; 2910 break; 2911 case 'i': 2912 if (types == USTYPE_PROJ) { 2913 (void) fprintf(stderr, 2914 gettext("invalid option 'i'\n")); 2915 usage(B_FALSE); 2916 } 2917 sid2posix = B_TRUE; 2918 break; 2919 case ':': 2920 (void) fprintf(stderr, gettext("missing argument for " 2921 "'%c' option\n"), optopt); 2922 usage(B_FALSE); 2923 break; 2924 case '?': 2925 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2926 optopt); 2927 usage(B_FALSE); 2928 } 2929 } 2930 2931 argc -= optind; 2932 argv += optind; 2933 2934 if (argc < 1) { 2935 (void) fprintf(stderr, gettext("missing dataset name\n")); 2936 usage(B_FALSE); 2937 } 2938 if (argc > 1) { 2939 (void) fprintf(stderr, gettext("too many arguments\n")); 2940 usage(B_FALSE); 2941 } 2942 2943 /* Use default output fields if not specified using -o */ 2944 if (ofield == NULL) 2945 ofield = deffields; 2946 do { 2947 if ((delim = strchr(ofield, ',')) != NULL) 2948 *delim = '\0'; 2949 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2950 (void) fprintf(stderr, gettext("invalid type '%s' " 2951 "for -o option\n"), ofield); 2952 return (-1); 2953 } 2954 if (delim != NULL) 2955 ofield = delim + 1; 2956 } while (delim != NULL); 2957 fields[cfield] = USFIELD_LAST; 2958 2959 /* Override output types (-t option) */ 2960 if (tfield != NULL) { 2961 types = 0; 2962 2963 do { 2964 boolean_t found = B_FALSE; 2965 2966 if ((delim = strchr(tfield, ',')) != NULL) 2967 *delim = '\0'; 2968 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2969 i++) { 2970 if (strcmp(tfield, us_type_names[i]) == 0) { 2971 found = B_TRUE; 2972 types |= us_type_bits[i]; 2973 break; 2974 } 2975 } 2976 if (!found) { 2977 (void) fprintf(stderr, gettext("invalid type " 2978 "'%s' for -t option\n"), tfield); 2979 return (-1); 2980 } 2981 if (delim != NULL) 2982 tfield = delim + 1; 2983 } while (delim != NULL); 2984 } 2985 2986 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2987 return (1); 2988 2989 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2990 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2991 nomem(); 2992 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2993 nomem(); 2994 2995 /* Always add default sorting columns */ 2996 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2997 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2998 2999 cb.cb_sortcol = sortcol; 3000 cb.cb_numname = prtnum; 3001 cb.cb_nicenum = !parsable; 3002 cb.cb_avl_pool = avl_pool; 3003 cb.cb_avl = avl_tree; 3004 cb.cb_sid2posix = sid2posix; 3005 3006 for (i = 0; i < USFIELD_LAST; i++) 3007 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 3008 3009 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 3010 if ((zfs_prop_is_user(p) && 3011 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 3012 (zfs_prop_is_group(p) && 3013 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))) || 3014 (zfs_prop_is_project(p) && types != USTYPE_PROJ)) 3015 continue; 3016 3017 cb.cb_prop = p; 3018 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 3019 return (ret); 3020 } 3021 3022 /* Sort the list */ 3023 if ((node = uu_avl_first(avl_tree)) == NULL) 3024 return (0); 3025 3026 us_populated = B_TRUE; 3027 3028 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 3029 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 3030 list = uu_list_create(listpool, NULL, UU_DEFAULT); 3031 uu_list_node_init(node, &node->usn_listnode, listpool); 3032 3033 while (node != NULL) { 3034 rmnode = node; 3035 node = uu_avl_next(avl_tree, node); 3036 uu_avl_remove(avl_tree, rmnode); 3037 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 3038 uu_list_insert(list, rmnode, idx2); 3039 } 3040 3041 for (node = uu_list_first(list); node != NULL; 3042 node = uu_list_next(list, node)) { 3043 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 3044 3045 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 3046 uu_avl_insert(avl_tree, node, idx); 3047 } 3048 3049 uu_list_destroy(list); 3050 uu_list_pool_destroy(listpool); 3051 3052 /* Print and free node nvlist memory */ 3053 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 3054 cb.cb_avl); 3055 3056 zfs_free_sort_columns(sortcol); 3057 3058 /* Clean up the AVL tree */ 3059 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 3060 nomem(); 3061 3062 while ((node = uu_avl_walk_next(walk)) != NULL) { 3063 uu_avl_remove(cb.cb_avl, node); 3064 free(node); 3065 } 3066 3067 uu_avl_walk_end(walk); 3068 uu_avl_destroy(avl_tree); 3069 uu_avl_pool_destroy(avl_pool); 3070 3071 return (ret); 3072 } 3073 3074 /* 3075 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 3076 * [-t type[,...]] [filesystem|volume|snapshot] ... 3077 * 3078 * -H Scripted mode; elide headers and separate columns by tabs. 3079 * -p Display values in parsable (literal) format. 3080 * -r Recurse over all children. 3081 * -d Limit recursion by depth. 3082 * -o Control which fields to display. 3083 * -s Specify sort columns, descending order. 3084 * -S Specify sort columns, ascending order. 3085 * -t Control which object types to display. 3086 * 3087 * When given no arguments, list all filesystems in the system. 3088 * Otherwise, list the specified datasets, optionally recursing down them if 3089 * '-r' is specified. 3090 */ 3091 typedef struct list_cbdata { 3092 boolean_t cb_first; 3093 boolean_t cb_literal; 3094 boolean_t cb_scripted; 3095 zprop_list_t *cb_proplist; 3096 } list_cbdata_t; 3097 3098 /* 3099 * Given a list of columns to display, output appropriate headers for each one. 3100 */ 3101 static void 3102 print_header(list_cbdata_t *cb) 3103 { 3104 zprop_list_t *pl = cb->cb_proplist; 3105 char headerbuf[ZFS_MAXPROPLEN]; 3106 const char *header; 3107 int i; 3108 boolean_t first = B_TRUE; 3109 boolean_t right_justify; 3110 3111 for (; pl != NULL; pl = pl->pl_next) { 3112 if (!first) { 3113 (void) printf(" "); 3114 } else { 3115 first = B_FALSE; 3116 } 3117 3118 right_justify = B_FALSE; 3119 if (pl->pl_prop != ZPROP_INVAL) { 3120 header = zfs_prop_column_name(pl->pl_prop); 3121 right_justify = zfs_prop_align_right(pl->pl_prop); 3122 } else { 3123 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 3124 headerbuf[i] = toupper(pl->pl_user_prop[i]); 3125 headerbuf[i] = '\0'; 3126 header = headerbuf; 3127 } 3128 3129 if (pl->pl_next == NULL && !right_justify) 3130 (void) printf("%s", header); 3131 else if (right_justify) 3132 (void) printf("%*s", pl->pl_width, header); 3133 else 3134 (void) printf("%-*s", pl->pl_width, header); 3135 } 3136 3137 (void) printf("\n"); 3138 } 3139 3140 /* 3141 * Given a dataset and a list of fields, print out all the properties according 3142 * to the described layout. 3143 */ 3144 static void 3145 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 3146 { 3147 zprop_list_t *pl = cb->cb_proplist; 3148 boolean_t first = B_TRUE; 3149 char property[ZFS_MAXPROPLEN]; 3150 nvlist_t *userprops = zfs_get_user_props(zhp); 3151 nvlist_t *propval; 3152 char *propstr; 3153 boolean_t right_justify; 3154 3155 for (; pl != NULL; pl = pl->pl_next) { 3156 if (!first) { 3157 if (cb->cb_scripted) 3158 (void) printf("\t"); 3159 else 3160 (void) printf(" "); 3161 } else { 3162 first = B_FALSE; 3163 } 3164 3165 if (pl->pl_prop == ZFS_PROP_NAME) { 3166 (void) strlcpy(property, zfs_get_name(zhp), 3167 sizeof (property)); 3168 propstr = property; 3169 right_justify = zfs_prop_align_right(pl->pl_prop); 3170 } else if (pl->pl_prop != ZPROP_INVAL) { 3171 if (zfs_prop_get(zhp, pl->pl_prop, property, 3172 sizeof (property), NULL, NULL, 0, 3173 cb->cb_literal) != 0) 3174 propstr = "-"; 3175 else 3176 propstr = property; 3177 right_justify = zfs_prop_align_right(pl->pl_prop); 3178 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3179 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3180 property, sizeof (property), cb->cb_literal) != 0) 3181 propstr = "-"; 3182 else 3183 propstr = property; 3184 right_justify = B_TRUE; 3185 } else if (zfs_prop_written(pl->pl_user_prop)) { 3186 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3187 property, sizeof (property), cb->cb_literal) != 0) 3188 propstr = "-"; 3189 else 3190 propstr = property; 3191 right_justify = B_TRUE; 3192 } else { 3193 if (nvlist_lookup_nvlist(userprops, 3194 pl->pl_user_prop, &propval) != 0) 3195 propstr = "-"; 3196 else 3197 verify(nvlist_lookup_string(propval, 3198 ZPROP_VALUE, &propstr) == 0); 3199 right_justify = B_FALSE; 3200 } 3201 3202 /* 3203 * If this is being called in scripted mode, or if this is the 3204 * last column and it is left-justified, don't include a width 3205 * format specifier. 3206 */ 3207 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3208 (void) printf("%s", propstr); 3209 else if (right_justify) 3210 (void) printf("%*s", pl->pl_width, propstr); 3211 else 3212 (void) printf("%-*s", pl->pl_width, propstr); 3213 } 3214 3215 (void) printf("\n"); 3216 } 3217 3218 /* 3219 * Generic callback function to list a dataset or snapshot. 3220 */ 3221 static int 3222 list_callback(zfs_handle_t *zhp, void *data) 3223 { 3224 list_cbdata_t *cbp = data; 3225 3226 if (cbp->cb_first) { 3227 if (!cbp->cb_scripted) 3228 print_header(cbp); 3229 cbp->cb_first = B_FALSE; 3230 } 3231 3232 print_dataset(zhp, cbp); 3233 3234 return (0); 3235 } 3236 3237 static int 3238 zfs_do_list(int argc, char **argv) 3239 { 3240 int c; 3241 static char default_fields[] = 3242 "name,used,available,referenced,mountpoint"; 3243 int types = ZFS_TYPE_DATASET; 3244 boolean_t types_specified = B_FALSE; 3245 char *fields = NULL; 3246 list_cbdata_t cb = { 0 }; 3247 char *value; 3248 int limit = 0; 3249 int ret = 0; 3250 zfs_sort_column_t *sortcol = NULL; 3251 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3252 3253 /* check options */ 3254 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3255 switch (c) { 3256 case 'o': 3257 fields = optarg; 3258 break; 3259 case 'p': 3260 cb.cb_literal = B_TRUE; 3261 flags |= ZFS_ITER_LITERAL_PROPS; 3262 break; 3263 case 'd': 3264 limit = parse_depth(optarg, &flags); 3265 break; 3266 case 'r': 3267 flags |= ZFS_ITER_RECURSE; 3268 break; 3269 case 'H': 3270 cb.cb_scripted = B_TRUE; 3271 break; 3272 case 's': 3273 if (zfs_add_sort_column(&sortcol, optarg, 3274 B_FALSE) != 0) { 3275 (void) fprintf(stderr, 3276 gettext("invalid property '%s'\n"), optarg); 3277 usage(B_FALSE); 3278 } 3279 break; 3280 case 'S': 3281 if (zfs_add_sort_column(&sortcol, optarg, 3282 B_TRUE) != 0) { 3283 (void) fprintf(stderr, 3284 gettext("invalid property '%s'\n"), optarg); 3285 usage(B_FALSE); 3286 } 3287 break; 3288 case 't': 3289 types = 0; 3290 types_specified = B_TRUE; 3291 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3292 while (*optarg != '\0') { 3293 static char *type_subopts[] = { "filesystem", 3294 "volume", "snapshot", "snap", "bookmark", 3295 "all", NULL }; 3296 3297 switch (getsubopt(&optarg, type_subopts, 3298 &value)) { 3299 case 0: 3300 types |= ZFS_TYPE_FILESYSTEM; 3301 break; 3302 case 1: 3303 types |= ZFS_TYPE_VOLUME; 3304 break; 3305 case 2: 3306 case 3: 3307 types |= ZFS_TYPE_SNAPSHOT; 3308 break; 3309 case 4: 3310 types |= ZFS_TYPE_BOOKMARK; 3311 break; 3312 case 5: 3313 types = ZFS_TYPE_DATASET | 3314 ZFS_TYPE_BOOKMARK; 3315 break; 3316 default: 3317 (void) fprintf(stderr, 3318 gettext("invalid type '%s'\n"), 3319 value); 3320 usage(B_FALSE); 3321 } 3322 } 3323 break; 3324 case ':': 3325 (void) fprintf(stderr, gettext("missing argument for " 3326 "'%c' option\n"), optopt); 3327 usage(B_FALSE); 3328 break; 3329 case '?': 3330 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3331 optopt); 3332 usage(B_FALSE); 3333 } 3334 } 3335 3336 argc -= optind; 3337 argv += optind; 3338 3339 if (fields == NULL) 3340 fields = default_fields; 3341 3342 /* 3343 * If we are only going to list snapshot names and sort by name, 3344 * then we can use faster version. 3345 */ 3346 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3347 flags |= ZFS_ITER_SIMPLE; 3348 3349 /* 3350 * If "-o space" and no types were specified, don't display snapshots. 3351 */ 3352 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3353 types &= ~ZFS_TYPE_SNAPSHOT; 3354 3355 /* 3356 * If the user specifies '-o all', the zprop_get_list() doesn't 3357 * normally include the name of the dataset. For 'zfs list', we always 3358 * want this property to be first. 3359 */ 3360 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3361 != 0) 3362 usage(B_FALSE); 3363 3364 cb.cb_first = B_TRUE; 3365 3366 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3367 limit, list_callback, &cb); 3368 3369 zprop_free_list(cb.cb_proplist); 3370 zfs_free_sort_columns(sortcol); 3371 3372 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3373 (void) printf(gettext("no datasets available\n")); 3374 3375 return (ret); 3376 } 3377 3378 /* 3379 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3380 * zfs rename [-f] -p <fs | vol> <fs | vol> 3381 * zfs rename -r <snap> <snap> 3382 * 3383 * Renames the given dataset to another of the same type. 3384 * 3385 * The '-p' flag creates all the non-existing ancestors of the target first. 3386 */ 3387 /* ARGSUSED */ 3388 static int 3389 zfs_do_rename(int argc, char **argv) 3390 { 3391 zfs_handle_t *zhp; 3392 int c; 3393 int ret = 0; 3394 boolean_t recurse = B_FALSE; 3395 boolean_t parents = B_FALSE; 3396 boolean_t force_unmount = B_FALSE; 3397 3398 /* check options */ 3399 while ((c = getopt(argc, argv, "prf")) != -1) { 3400 switch (c) { 3401 case 'p': 3402 parents = B_TRUE; 3403 break; 3404 case 'r': 3405 recurse = B_TRUE; 3406 break; 3407 case 'f': 3408 force_unmount = B_TRUE; 3409 break; 3410 case '?': 3411 default: 3412 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3413 optopt); 3414 usage(B_FALSE); 3415 } 3416 } 3417 3418 argc -= optind; 3419 argv += optind; 3420 3421 /* check number of arguments */ 3422 if (argc < 1) { 3423 (void) fprintf(stderr, gettext("missing source dataset " 3424 "argument\n")); 3425 usage(B_FALSE); 3426 } 3427 if (argc < 2) { 3428 (void) fprintf(stderr, gettext("missing target dataset " 3429 "argument\n")); 3430 usage(B_FALSE); 3431 } 3432 if (argc > 2) { 3433 (void) fprintf(stderr, gettext("too many arguments\n")); 3434 usage(B_FALSE); 3435 } 3436 3437 if (recurse && parents) { 3438 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3439 "exclusive\n")); 3440 usage(B_FALSE); 3441 } 3442 3443 if (recurse && strchr(argv[0], '@') == 0) { 3444 (void) fprintf(stderr, gettext("source dataset for recursive " 3445 "rename must be a snapshot\n")); 3446 usage(B_FALSE); 3447 } 3448 3449 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3450 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3451 return (1); 3452 3453 /* If we were asked and the name looks good, try to create ancestors. */ 3454 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3455 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3456 zfs_close(zhp); 3457 return (1); 3458 } 3459 3460 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3461 3462 zfs_close(zhp); 3463 return (ret); 3464 } 3465 3466 /* 3467 * zfs promote <fs> 3468 * 3469 * Promotes the given clone fs to be the parent 3470 */ 3471 /* ARGSUSED */ 3472 static int 3473 zfs_do_promote(int argc, char **argv) 3474 { 3475 zfs_handle_t *zhp; 3476 int ret = 0; 3477 3478 /* check options */ 3479 if (argc > 1 && argv[1][0] == '-') { 3480 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3481 argv[1][1]); 3482 usage(B_FALSE); 3483 } 3484 3485 /* check number of arguments */ 3486 if (argc < 2) { 3487 (void) fprintf(stderr, gettext("missing clone filesystem" 3488 " argument\n")); 3489 usage(B_FALSE); 3490 } 3491 if (argc > 2) { 3492 (void) fprintf(stderr, gettext("too many arguments\n")); 3493 usage(B_FALSE); 3494 } 3495 3496 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3497 if (zhp == NULL) 3498 return (1); 3499 3500 ret = (zfs_promote(zhp) != 0); 3501 3502 3503 zfs_close(zhp); 3504 return (ret); 3505 } 3506 3507 /* 3508 * zfs rollback [-rRf] <snapshot> 3509 * 3510 * -r Delete any intervening snapshots before doing rollback 3511 * -R Delete any snapshots and their clones 3512 * -f ignored for backwards compatability 3513 * 3514 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3515 * since then and making it the active dataset. If more recent snapshots exist, 3516 * the command will complain unless the '-r' flag is given. 3517 */ 3518 typedef struct rollback_cbdata { 3519 uint64_t cb_create; 3520 boolean_t cb_first; 3521 int cb_doclones; 3522 char *cb_target; 3523 int cb_error; 3524 boolean_t cb_recurse; 3525 } rollback_cbdata_t; 3526 3527 static int 3528 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3529 { 3530 rollback_cbdata_t *cbp = data; 3531 3532 if (cbp->cb_first && cbp->cb_recurse) { 3533 (void) fprintf(stderr, gettext("cannot rollback to " 3534 "'%s': clones of previous snapshots exist\n"), 3535 cbp->cb_target); 3536 (void) fprintf(stderr, gettext("use '-R' to " 3537 "force deletion of the following clones and " 3538 "dependents:\n")); 3539 cbp->cb_first = 0; 3540 cbp->cb_error = 1; 3541 } 3542 3543 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3544 3545 zfs_close(zhp); 3546 return (0); 3547 } 3548 3549 /* 3550 * Report any snapshots more recent than the one specified. Used when '-r' is 3551 * not specified. We reuse this same callback for the snapshot dependents - if 3552 * 'cb_dependent' is set, then this is a dependent and we should report it 3553 * without checking the transaction group. 3554 */ 3555 static int 3556 rollback_check(zfs_handle_t *zhp, void *data) 3557 { 3558 rollback_cbdata_t *cbp = data; 3559 3560 if (cbp->cb_doclones) { 3561 zfs_close(zhp); 3562 return (0); 3563 } 3564 3565 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3566 if (cbp->cb_first && !cbp->cb_recurse) { 3567 (void) fprintf(stderr, gettext("cannot " 3568 "rollback to '%s': more recent snapshots " 3569 "or bookmarks exist\n"), 3570 cbp->cb_target); 3571 (void) fprintf(stderr, gettext("use '-r' to " 3572 "force deletion of the following " 3573 "snapshots and bookmarks:\n")); 3574 cbp->cb_first = 0; 3575 cbp->cb_error = 1; 3576 } 3577 3578 if (cbp->cb_recurse) { 3579 if (zfs_iter_dependents(zhp, B_TRUE, 3580 rollback_check_dependent, cbp) != 0) { 3581 zfs_close(zhp); 3582 return (-1); 3583 } 3584 } else { 3585 (void) fprintf(stderr, "%s\n", 3586 zfs_get_name(zhp)); 3587 } 3588 } 3589 zfs_close(zhp); 3590 return (0); 3591 } 3592 3593 static int 3594 zfs_do_rollback(int argc, char **argv) 3595 { 3596 int ret = 0; 3597 int c; 3598 boolean_t force = B_FALSE; 3599 rollback_cbdata_t cb = { 0 }; 3600 zfs_handle_t *zhp, *snap; 3601 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3602 char *delim; 3603 3604 /* check options */ 3605 while ((c = getopt(argc, argv, "rRf")) != -1) { 3606 switch (c) { 3607 case 'r': 3608 cb.cb_recurse = 1; 3609 break; 3610 case 'R': 3611 cb.cb_recurse = 1; 3612 cb.cb_doclones = 1; 3613 break; 3614 case 'f': 3615 force = B_TRUE; 3616 break; 3617 case '?': 3618 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3619 optopt); 3620 usage(B_FALSE); 3621 } 3622 } 3623 3624 argc -= optind; 3625 argv += optind; 3626 3627 /* check number of arguments */ 3628 if (argc < 1) { 3629 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3630 usage(B_FALSE); 3631 } 3632 if (argc > 1) { 3633 (void) fprintf(stderr, gettext("too many arguments\n")); 3634 usage(B_FALSE); 3635 } 3636 3637 /* open the snapshot */ 3638 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3639 return (1); 3640 3641 /* open the parent dataset */ 3642 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3643 verify((delim = strrchr(parentname, '@')) != NULL); 3644 *delim = '\0'; 3645 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3646 zfs_close(snap); 3647 return (1); 3648 } 3649 3650 /* 3651 * Check for more recent snapshots and/or clones based on the presence 3652 * of '-r' and '-R'. 3653 */ 3654 cb.cb_target = argv[0]; 3655 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3656 cb.cb_first = B_TRUE; 3657 cb.cb_error = 0; 3658 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3659 goto out; 3660 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3661 goto out; 3662 3663 if ((ret = cb.cb_error) != 0) 3664 goto out; 3665 3666 /* 3667 * Rollback parent to the given snapshot. 3668 */ 3669 ret = zfs_rollback(zhp, snap, force); 3670 3671 out: 3672 zfs_close(snap); 3673 zfs_close(zhp); 3674 3675 if (ret == 0) 3676 return (0); 3677 else 3678 return (1); 3679 } 3680 3681 /* 3682 * zfs set property=value ... { fs | snap | vol } ... 3683 * 3684 * Sets the given properties for all datasets specified on the command line. 3685 */ 3686 3687 static int 3688 set_callback(zfs_handle_t *zhp, void *data) 3689 { 3690 nvlist_t *props = data; 3691 3692 if (zfs_prop_set_list(zhp, props) != 0) { 3693 switch (libzfs_errno(g_zfs)) { 3694 case EZFS_MOUNTFAILED: 3695 (void) fprintf(stderr, gettext("property may be set " 3696 "but unable to remount filesystem\n")); 3697 break; 3698 case EZFS_SHARENFSFAILED: 3699 (void) fprintf(stderr, gettext("property may be set " 3700 "but unable to reshare filesystem\n")); 3701 break; 3702 } 3703 return (1); 3704 } 3705 return (0); 3706 } 3707 3708 static int 3709 zfs_do_set(int argc, char **argv) 3710 { 3711 nvlist_t *props = NULL; 3712 int ds_start = -1; /* argv idx of first dataset arg */ 3713 int ret = 0; 3714 3715 /* check for options */ 3716 if (argc > 1 && argv[1][0] == '-') { 3717 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3718 argv[1][1]); 3719 usage(B_FALSE); 3720 } 3721 3722 /* check number of arguments */ 3723 if (argc < 2) { 3724 (void) fprintf(stderr, gettext("missing arguments\n")); 3725 usage(B_FALSE); 3726 } 3727 if (argc < 3) { 3728 if (strchr(argv[1], '=') == NULL) { 3729 (void) fprintf(stderr, gettext("missing property=value " 3730 "argument(s)\n")); 3731 } else { 3732 (void) fprintf(stderr, gettext("missing dataset " 3733 "name(s)\n")); 3734 } 3735 usage(B_FALSE); 3736 } 3737 3738 /* validate argument order: prop=val args followed by dataset args */ 3739 for (int i = 1; i < argc; i++) { 3740 if (strchr(argv[i], '=') != NULL) { 3741 if (ds_start > 0) { 3742 /* out-of-order prop=val argument */ 3743 (void) fprintf(stderr, gettext("invalid " 3744 "argument order\n"), i); 3745 usage(B_FALSE); 3746 } 3747 } else if (ds_start < 0) { 3748 ds_start = i; 3749 } 3750 } 3751 if (ds_start < 0) { 3752 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3753 usage(B_FALSE); 3754 } 3755 3756 /* Populate a list of property settings */ 3757 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3758 nomem(); 3759 for (int i = 1; i < ds_start; i++) { 3760 if (!parseprop(props, argv[i])) { 3761 ret = -1; 3762 goto error; 3763 } 3764 } 3765 3766 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3767 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3768 3769 error: 3770 nvlist_free(props); 3771 return (ret); 3772 } 3773 3774 typedef struct snap_cbdata { 3775 nvlist_t *sd_nvl; 3776 boolean_t sd_recursive; 3777 const char *sd_snapname; 3778 } snap_cbdata_t; 3779 3780 static int 3781 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3782 { 3783 snap_cbdata_t *sd = arg; 3784 char *name; 3785 int rv = 0; 3786 int error; 3787 3788 if (sd->sd_recursive && 3789 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3790 zfs_close(zhp); 3791 return (0); 3792 } 3793 3794 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3795 if (error == -1) 3796 nomem(); 3797 fnvlist_add_boolean(sd->sd_nvl, name); 3798 free(name); 3799 3800 if (sd->sd_recursive) 3801 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3802 zfs_close(zhp); 3803 return (rv); 3804 } 3805 3806 /* 3807 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3808 * 3809 * Creates a snapshot with the given name. While functionally equivalent to 3810 * 'zfs create', it is a separate command to differentiate intent. 3811 */ 3812 static int 3813 zfs_do_snapshot(int argc, char **argv) 3814 { 3815 int ret = 0; 3816 char c; 3817 nvlist_t *props; 3818 snap_cbdata_t sd = { 0 }; 3819 boolean_t multiple_snaps = B_FALSE; 3820 3821 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3822 nomem(); 3823 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3824 nomem(); 3825 3826 /* check options */ 3827 while ((c = getopt(argc, argv, "ro:")) != -1) { 3828 switch (c) { 3829 case 'o': 3830 if (!parseprop(props, optarg)) { 3831 nvlist_free(sd.sd_nvl); 3832 nvlist_free(props); 3833 return (1); 3834 } 3835 break; 3836 case 'r': 3837 sd.sd_recursive = B_TRUE; 3838 multiple_snaps = B_TRUE; 3839 break; 3840 case '?': 3841 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3842 optopt); 3843 goto usage; 3844 } 3845 } 3846 3847 argc -= optind; 3848 argv += optind; 3849 3850 /* check number of arguments */ 3851 if (argc < 1) { 3852 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3853 goto usage; 3854 } 3855 3856 if (argc > 1) 3857 multiple_snaps = B_TRUE; 3858 for (; argc > 0; argc--, argv++) { 3859 char *atp; 3860 zfs_handle_t *zhp; 3861 3862 atp = strchr(argv[0], '@'); 3863 if (atp == NULL) 3864 goto usage; 3865 *atp = '\0'; 3866 sd.sd_snapname = atp + 1; 3867 zhp = zfs_open(g_zfs, argv[0], 3868 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3869 if (zhp == NULL) 3870 goto usage; 3871 if (zfs_snapshot_cb(zhp, &sd) != 0) 3872 goto usage; 3873 } 3874 3875 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3876 nvlist_free(sd.sd_nvl); 3877 nvlist_free(props); 3878 if (ret != 0 && multiple_snaps) 3879 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3880 return (ret != 0); 3881 3882 usage: 3883 nvlist_free(sd.sd_nvl); 3884 nvlist_free(props); 3885 usage(B_FALSE); 3886 return (-1); 3887 } 3888 3889 /* 3890 * Send a backup stream to stdout. 3891 */ 3892 static int 3893 zfs_do_send(int argc, char **argv) 3894 { 3895 char *fromname = NULL; 3896 char *toname = NULL; 3897 char *resume_token = NULL; 3898 char *cp; 3899 zfs_handle_t *zhp; 3900 sendflags_t flags = { 0 }; 3901 int c, err; 3902 nvlist_t *dbgnv = NULL; 3903 boolean_t extraverbose = B_FALSE; 3904 3905 struct option long_options[] = { 3906 {"replicate", no_argument, NULL, 'R'}, 3907 {"props", no_argument, NULL, 'p'}, 3908 {"parsable", no_argument, NULL, 'P'}, 3909 {"dedup", no_argument, NULL, 'D'}, 3910 {"verbose", no_argument, NULL, 'v'}, 3911 {"dryrun", no_argument, NULL, 'n'}, 3912 {"large-block", no_argument, NULL, 'L'}, 3913 {"embed", no_argument, NULL, 'e'}, 3914 {"resume", required_argument, NULL, 't'}, 3915 {"compressed", no_argument, NULL, 'c'}, 3916 {"raw", no_argument, NULL, 'w'}, 3917 {"backup", no_argument, NULL, 'b'}, 3918 {"holds", no_argument, NULL, 'h'}, 3919 {0, 0, 0, 0} 3920 }; 3921 3922 /* check options */ 3923 while ((c = getopt_long(argc, argv, ":i:I:RDpvnPLeht:cwb", long_options, 3924 NULL)) != -1) { 3925 switch (c) { 3926 case 'i': 3927 if (fromname) 3928 usage(B_FALSE); 3929 fromname = optarg; 3930 break; 3931 case 'I': 3932 if (fromname) 3933 usage(B_FALSE); 3934 fromname = optarg; 3935 flags.doall = B_TRUE; 3936 break; 3937 case 'R': 3938 flags.replicate = B_TRUE; 3939 break; 3940 case 'p': 3941 flags.props = B_TRUE; 3942 break; 3943 case 'b': 3944 flags.backup = B_TRUE; 3945 break; 3946 case 'h': 3947 flags.holds = B_TRUE; 3948 break; 3949 case 'P': 3950 flags.parsable = B_TRUE; 3951 flags.verbose = B_TRUE; 3952 break; 3953 case 'v': 3954 if (flags.verbose) 3955 extraverbose = B_TRUE; 3956 flags.verbose = B_TRUE; 3957 flags.progress = B_TRUE; 3958 break; 3959 case 'D': 3960 flags.dedup = B_TRUE; 3961 break; 3962 case 'n': 3963 flags.dryrun = B_TRUE; 3964 break; 3965 case 'L': 3966 flags.largeblock = B_TRUE; 3967 break; 3968 case 'e': 3969 flags.embed_data = B_TRUE; 3970 break; 3971 case 't': 3972 resume_token = optarg; 3973 break; 3974 case 'c': 3975 flags.compress = B_TRUE; 3976 break; 3977 case 'w': 3978 flags.raw = B_TRUE; 3979 flags.compress = B_TRUE; 3980 flags.embed_data = B_TRUE; 3981 flags.largeblock = B_TRUE; 3982 break; 3983 case ':': 3984 /* 3985 * If a parameter was not passed, optopt contains the 3986 * value that would normally lead us into the 3987 * appropriate case statement. If it's > 256, then this 3988 * must be a longopt and we should look at argv to get 3989 * the string. Otherwise it's just the character, so we 3990 * should use it directly. 3991 */ 3992 if (optopt <= UINT8_MAX) { 3993 (void) fprintf(stderr, 3994 gettext("missing argument for '%c' " 3995 "option\n"), optopt); 3996 } else { 3997 (void) fprintf(stderr, 3998 gettext("missing argument for '%s' " 3999 "option\n"), argv[optind - 1]); 4000 } 4001 usage(B_FALSE); 4002 break; 4003 case '?': 4004 /*FALLTHROUGH*/ 4005 default: 4006 /* 4007 * If an invalid flag was passed, optopt contains the 4008 * character if it was a short flag, or 0 if it was a 4009 * longopt. 4010 */ 4011 if (optopt != 0) { 4012 (void) fprintf(stderr, 4013 gettext("invalid option '%c'\n"), optopt); 4014 } else { 4015 (void) fprintf(stderr, 4016 gettext("invalid option '%s'\n"), 4017 argv[optind - 1]); 4018 4019 } 4020 usage(B_FALSE); 4021 } 4022 } 4023 4024 argc -= optind; 4025 argv += optind; 4026 4027 if (resume_token != NULL) { 4028 if (fromname != NULL || flags.replicate || flags.props || 4029 flags.backup || flags.dedup) { 4030 (void) fprintf(stderr, 4031 gettext("invalid flags combined with -t\n")); 4032 usage(B_FALSE); 4033 } 4034 if (argc != 0) { 4035 (void) fprintf(stderr, gettext("no additional " 4036 "arguments are permitted with -t\n")); 4037 usage(B_FALSE); 4038 } 4039 } else { 4040 if (argc < 1) { 4041 (void) fprintf(stderr, 4042 gettext("missing snapshot argument\n")); 4043 usage(B_FALSE); 4044 } 4045 if (argc > 1) { 4046 (void) fprintf(stderr, gettext("too many arguments\n")); 4047 usage(B_FALSE); 4048 } 4049 } 4050 4051 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 4052 (void) fprintf(stderr, 4053 gettext("Error: Stream can not be written to a terminal.\n" 4054 "You must redirect standard output.\n")); 4055 return (1); 4056 } 4057 4058 if (resume_token != NULL) { 4059 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 4060 resume_token)); 4061 } 4062 4063 /* 4064 * Special case sending a filesystem, or from a bookmark. 4065 */ 4066 if (strchr(argv[0], '@') == NULL || 4067 (fromname && strchr(fromname, '#') != NULL)) { 4068 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 4069 enum lzc_send_flags lzc_flags = 0; 4070 4071 if (flags.replicate || flags.doall || flags.props || 4072 flags.backup || flags.dedup || flags.holds || 4073 flags.dryrun || flags.verbose || flags.progress) { 4074 (void) fprintf(stderr, 4075 gettext("Error: " 4076 "Unsupported flag with filesystem or bookmark.\n")); 4077 return (1); 4078 } 4079 4080 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 4081 if (zhp == NULL) 4082 return (1); 4083 4084 if (flags.largeblock) 4085 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 4086 if (flags.embed_data) 4087 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 4088 if (flags.compress) 4089 lzc_flags |= LZC_SEND_FLAG_COMPRESS; 4090 if (flags.raw) 4091 lzc_flags |= LZC_SEND_FLAG_RAW; 4092 4093 if (fromname != NULL && 4094 (fromname[0] == '#' || fromname[0] == '@')) { 4095 /* 4096 * Incremental source name begins with # or @. 4097 * Default to same fs as target. 4098 */ 4099 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 4100 cp = strchr(frombuf, '@'); 4101 if (cp != NULL) 4102 *cp = '\0'; 4103 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 4104 fromname = frombuf; 4105 } 4106 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 4107 zfs_close(zhp); 4108 return (err != 0); 4109 } 4110 4111 cp = strchr(argv[0], '@'); 4112 *cp = '\0'; 4113 toname = cp + 1; 4114 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4115 if (zhp == NULL) 4116 return (1); 4117 4118 /* 4119 * If they specified the full path to the snapshot, chop off 4120 * everything except the short name of the snapshot, but special 4121 * case if they specify the origin. 4122 */ 4123 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 4124 char origin[ZFS_MAX_DATASET_NAME_LEN]; 4125 zprop_source_t src; 4126 4127 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 4128 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 4129 4130 if (strcmp(origin, fromname) == 0) { 4131 fromname = NULL; 4132 flags.fromorigin = B_TRUE; 4133 } else { 4134 *cp = '\0'; 4135 if (cp != fromname && strcmp(argv[0], fromname)) { 4136 (void) fprintf(stderr, 4137 gettext("incremental source must be " 4138 "in same filesystem\n")); 4139 usage(B_FALSE); 4140 } 4141 fromname = cp + 1; 4142 if (strchr(fromname, '@') || strchr(fromname, '/')) { 4143 (void) fprintf(stderr, 4144 gettext("invalid incremental source\n")); 4145 usage(B_FALSE); 4146 } 4147 } 4148 } 4149 4150 if (flags.replicate && fromname == NULL) 4151 flags.doall = B_TRUE; 4152 4153 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 4154 extraverbose ? &dbgnv : NULL); 4155 4156 if (extraverbose && dbgnv != NULL) { 4157 /* 4158 * dump_nvlist prints to stdout, but that's been 4159 * redirected to a file. Make it print to stderr 4160 * instead. 4161 */ 4162 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 4163 dump_nvlist(dbgnv, 0); 4164 nvlist_free(dbgnv); 4165 } 4166 zfs_close(zhp); 4167 4168 return (err != 0); 4169 } 4170 4171 /* 4172 * Restore a backup stream from stdin. 4173 */ 4174 static int 4175 zfs_do_receive(int argc, char **argv) 4176 { 4177 int c, err = 0; 4178 recvflags_t flags = { 0 }; 4179 boolean_t abort_resumable = B_FALSE; 4180 nvlist_t *props; 4181 4182 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4183 nomem(); 4184 4185 /* check options */ 4186 while ((c = getopt(argc, argv, ":o:x:dehnuvFsA")) != -1) { 4187 switch (c) { 4188 case 'o': 4189 if (!parseprop(props, optarg)) { 4190 nvlist_free(props); 4191 usage(B_FALSE); 4192 } 4193 break; 4194 case 'x': 4195 if (!parsepropname(props, optarg)) { 4196 nvlist_free(props); 4197 usage(B_FALSE); 4198 } 4199 break; 4200 case 'd': 4201 flags.isprefix = B_TRUE; 4202 break; 4203 case 'e': 4204 flags.isprefix = B_TRUE; 4205 flags.istail = B_TRUE; 4206 break; 4207 case 'h': 4208 flags.skipholds = B_TRUE; 4209 break; 4210 case 'n': 4211 flags.dryrun = B_TRUE; 4212 break; 4213 case 'u': 4214 flags.nomount = B_TRUE; 4215 break; 4216 case 'v': 4217 flags.verbose = B_TRUE; 4218 break; 4219 case 's': 4220 flags.resumable = B_TRUE; 4221 break; 4222 case 'F': 4223 flags.force = B_TRUE; 4224 break; 4225 case 'A': 4226 abort_resumable = B_TRUE; 4227 break; 4228 case ':': 4229 (void) fprintf(stderr, gettext("missing argument for " 4230 "'%c' option\n"), optopt); 4231 usage(B_FALSE); 4232 break; 4233 case '?': 4234 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4235 optopt); 4236 usage(B_FALSE); 4237 } 4238 } 4239 4240 argc -= optind; 4241 argv += optind; 4242 4243 /* check number of arguments */ 4244 if (argc < 1) { 4245 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4246 usage(B_FALSE); 4247 } 4248 if (argc > 1) { 4249 (void) fprintf(stderr, gettext("too many arguments\n")); 4250 usage(B_FALSE); 4251 } 4252 4253 if (abort_resumable) { 4254 if (flags.isprefix || flags.istail || flags.dryrun || 4255 flags.resumable || flags.nomount) { 4256 (void) fprintf(stderr, gettext("invalid option")); 4257 usage(B_FALSE); 4258 } 4259 4260 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4261 (void) snprintf(namebuf, sizeof (namebuf), 4262 "%s/%%recv", argv[0]); 4263 4264 if (zfs_dataset_exists(g_zfs, namebuf, 4265 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4266 zfs_handle_t *zhp = zfs_open(g_zfs, 4267 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4268 if (zhp == NULL) 4269 return (1); 4270 err = zfs_destroy(zhp, B_FALSE); 4271 } else { 4272 zfs_handle_t *zhp = zfs_open(g_zfs, 4273 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4274 if (zhp == NULL) 4275 usage(B_FALSE); 4276 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4277 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4278 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4279 (void) fprintf(stderr, 4280 gettext("'%s' does not have any " 4281 "resumable receive state to abort\n"), 4282 argv[0]); 4283 return (1); 4284 } 4285 err = zfs_destroy(zhp, B_FALSE); 4286 } 4287 4288 return (err != 0); 4289 } 4290 4291 if (isatty(STDIN_FILENO)) { 4292 (void) fprintf(stderr, 4293 gettext("Error: Backup stream can not be read " 4294 "from a terminal.\n" 4295 "You must redirect standard input.\n")); 4296 return (1); 4297 } 4298 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4299 4300 return (err != 0); 4301 } 4302 4303 /* 4304 * allow/unallow stuff 4305 */ 4306 /* copied from zfs/sys/dsl_deleg.h */ 4307 #define ZFS_DELEG_PERM_CREATE "create" 4308 #define ZFS_DELEG_PERM_DESTROY "destroy" 4309 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4310 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4311 #define ZFS_DELEG_PERM_CLONE "clone" 4312 #define ZFS_DELEG_PERM_PROMOTE "promote" 4313 #define ZFS_DELEG_PERM_RENAME "rename" 4314 #define ZFS_DELEG_PERM_MOUNT "mount" 4315 #define ZFS_DELEG_PERM_SHARE "share" 4316 #define ZFS_DELEG_PERM_SEND "send" 4317 #define ZFS_DELEG_PERM_RECEIVE "receive" 4318 #define ZFS_DELEG_PERM_ALLOW "allow" 4319 #define ZFS_DELEG_PERM_USERPROP "userprop" 4320 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4321 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4322 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4323 #define ZFS_DELEG_PERM_USERUSED "userused" 4324 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4325 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota" 4326 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota" 4327 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused" 4328 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused" 4329 4330 #define ZFS_DELEG_PERM_HOLD "hold" 4331 #define ZFS_DELEG_PERM_RELEASE "release" 4332 #define ZFS_DELEG_PERM_DIFF "diff" 4333 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4334 #define ZFS_DELEG_PERM_REMAP "remap" 4335 #define ZFS_DELEG_PERM_LOAD_KEY "load-key" 4336 #define ZFS_DELEG_PERM_CHANGE_KEY "change-key" 4337 4338 #define ZFS_DELEG_PERM_PROJECTUSED "projectused" 4339 #define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota" 4340 #define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused" 4341 #define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota" 4342 4343 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4344 4345 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4346 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4347 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4348 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4349 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4350 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4351 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4352 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4353 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4354 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4355 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4356 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4357 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4358 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4359 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4360 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4361 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4362 { ZFS_DELEG_PERM_REMAP, ZFS_DELEG_NOTE_REMAP }, 4363 { ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY }, 4364 { ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY }, 4365 4366 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4367 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4368 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4369 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4370 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4371 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA }, 4372 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED }, 4373 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA }, 4374 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED }, 4375 { ZFS_DELEG_PERM_PROJECTUSED, ZFS_DELEG_NOTE_PROJECTUSED }, 4376 { ZFS_DELEG_PERM_PROJECTQUOTA, ZFS_DELEG_NOTE_PROJECTQUOTA }, 4377 { ZFS_DELEG_PERM_PROJECTOBJUSED, ZFS_DELEG_NOTE_PROJECTOBJUSED }, 4378 { ZFS_DELEG_PERM_PROJECTOBJQUOTA, ZFS_DELEG_NOTE_PROJECTOBJQUOTA }, 4379 { NULL, ZFS_DELEG_NOTE_NONE } 4380 }; 4381 4382 /* permission structure */ 4383 typedef struct deleg_perm { 4384 zfs_deleg_who_type_t dp_who_type; 4385 const char *dp_name; 4386 boolean_t dp_local; 4387 boolean_t dp_descend; 4388 } deleg_perm_t; 4389 4390 /* */ 4391 typedef struct deleg_perm_node { 4392 deleg_perm_t dpn_perm; 4393 4394 uu_avl_node_t dpn_avl_node; 4395 } deleg_perm_node_t; 4396 4397 typedef struct fs_perm fs_perm_t; 4398 4399 /* permissions set */ 4400 typedef struct who_perm { 4401 zfs_deleg_who_type_t who_type; 4402 const char *who_name; /* id */ 4403 char who_ug_name[256]; /* user/group name */ 4404 fs_perm_t *who_fsperm; /* uplink */ 4405 4406 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4407 } who_perm_t; 4408 4409 /* */ 4410 typedef struct who_perm_node { 4411 who_perm_t who_perm; 4412 uu_avl_node_t who_avl_node; 4413 } who_perm_node_t; 4414 4415 typedef struct fs_perm_set fs_perm_set_t; 4416 /* fs permissions */ 4417 struct fs_perm { 4418 const char *fsp_name; 4419 4420 uu_avl_t *fsp_sc_avl; /* sets,create */ 4421 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4422 4423 fs_perm_set_t *fsp_set; /* uplink */ 4424 }; 4425 4426 /* */ 4427 typedef struct fs_perm_node { 4428 fs_perm_t fspn_fsperm; 4429 uu_avl_t *fspn_avl; 4430 4431 uu_list_node_t fspn_list_node; 4432 } fs_perm_node_t; 4433 4434 /* top level structure */ 4435 struct fs_perm_set { 4436 uu_list_pool_t *fsps_list_pool; 4437 uu_list_t *fsps_list; /* list of fs_perms */ 4438 4439 uu_avl_pool_t *fsps_named_set_avl_pool; 4440 uu_avl_pool_t *fsps_who_perm_avl_pool; 4441 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4442 }; 4443 4444 static inline const char * 4445 deleg_perm_type(zfs_deleg_note_t note) 4446 { 4447 /* subcommands */ 4448 switch (note) { 4449 /* SUBCOMMANDS */ 4450 /* OTHER */ 4451 case ZFS_DELEG_NOTE_GROUPQUOTA: 4452 case ZFS_DELEG_NOTE_GROUPUSED: 4453 case ZFS_DELEG_NOTE_USERPROP: 4454 case ZFS_DELEG_NOTE_USERQUOTA: 4455 case ZFS_DELEG_NOTE_USERUSED: 4456 case ZFS_DELEG_NOTE_USEROBJQUOTA: 4457 case ZFS_DELEG_NOTE_USEROBJUSED: 4458 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 4459 case ZFS_DELEG_NOTE_GROUPOBJUSED: 4460 case ZFS_DELEG_NOTE_PROJECTUSED: 4461 case ZFS_DELEG_NOTE_PROJECTQUOTA: 4462 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 4463 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 4464 /* other */ 4465 return (gettext("other")); 4466 default: 4467 return (gettext("subcommand")); 4468 } 4469 } 4470 4471 static int 4472 who_type2weight(zfs_deleg_who_type_t who_type) 4473 { 4474 int res; 4475 switch (who_type) { 4476 case ZFS_DELEG_NAMED_SET_SETS: 4477 case ZFS_DELEG_NAMED_SET: 4478 res = 0; 4479 break; 4480 case ZFS_DELEG_CREATE_SETS: 4481 case ZFS_DELEG_CREATE: 4482 res = 1; 4483 break; 4484 case ZFS_DELEG_USER_SETS: 4485 case ZFS_DELEG_USER: 4486 res = 2; 4487 break; 4488 case ZFS_DELEG_GROUP_SETS: 4489 case ZFS_DELEG_GROUP: 4490 res = 3; 4491 break; 4492 case ZFS_DELEG_EVERYONE_SETS: 4493 case ZFS_DELEG_EVERYONE: 4494 res = 4; 4495 break; 4496 default: 4497 res = -1; 4498 } 4499 4500 return (res); 4501 } 4502 4503 /* ARGSUSED */ 4504 static int 4505 who_perm_compare(const void *larg, const void *rarg, void *unused) 4506 { 4507 const who_perm_node_t *l = larg; 4508 const who_perm_node_t *r = rarg; 4509 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4510 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4511 int lweight = who_type2weight(ltype); 4512 int rweight = who_type2weight(rtype); 4513 int res = lweight - rweight; 4514 if (res == 0) 4515 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4516 ZFS_MAX_DELEG_NAME-1); 4517 4518 if (res == 0) 4519 return (0); 4520 if (res > 0) 4521 return (1); 4522 else 4523 return (-1); 4524 } 4525 4526 /* ARGSUSED */ 4527 static int 4528 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4529 { 4530 const deleg_perm_node_t *l = larg; 4531 const deleg_perm_node_t *r = rarg; 4532 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4533 ZFS_MAX_DELEG_NAME-1); 4534 4535 if (res == 0) 4536 return (0); 4537 4538 if (res > 0) 4539 return (1); 4540 else 4541 return (-1); 4542 } 4543 4544 static inline void 4545 fs_perm_set_init(fs_perm_set_t *fspset) 4546 { 4547 bzero(fspset, sizeof (fs_perm_set_t)); 4548 4549 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4550 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4551 NULL, UU_DEFAULT)) == NULL) 4552 nomem(); 4553 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4554 UU_DEFAULT)) == NULL) 4555 nomem(); 4556 4557 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4558 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4559 who_perm_node_t, who_avl_node), who_perm_compare, 4560 UU_DEFAULT)) == NULL) 4561 nomem(); 4562 4563 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4564 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4565 who_perm_node_t, who_avl_node), who_perm_compare, 4566 UU_DEFAULT)) == NULL) 4567 nomem(); 4568 4569 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4570 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4571 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4572 == NULL) 4573 nomem(); 4574 } 4575 4576 static inline void fs_perm_fini(fs_perm_t *); 4577 static inline void who_perm_fini(who_perm_t *); 4578 4579 static inline void 4580 fs_perm_set_fini(fs_perm_set_t *fspset) 4581 { 4582 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4583 4584 while (node != NULL) { 4585 fs_perm_node_t *next_node = 4586 uu_list_next(fspset->fsps_list, node); 4587 fs_perm_t *fsperm = &node->fspn_fsperm; 4588 fs_perm_fini(fsperm); 4589 uu_list_remove(fspset->fsps_list, node); 4590 free(node); 4591 node = next_node; 4592 } 4593 4594 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4595 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4596 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4597 } 4598 4599 static inline void 4600 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4601 const char *name) 4602 { 4603 deleg_perm->dp_who_type = type; 4604 deleg_perm->dp_name = name; 4605 } 4606 4607 static inline void 4608 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4609 zfs_deleg_who_type_t type, const char *name) 4610 { 4611 uu_avl_pool_t *pool; 4612 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4613 4614 bzero(who_perm, sizeof (who_perm_t)); 4615 4616 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4617 UU_DEFAULT)) == NULL) 4618 nomem(); 4619 4620 who_perm->who_type = type; 4621 who_perm->who_name = name; 4622 who_perm->who_fsperm = fsperm; 4623 } 4624 4625 static inline void 4626 who_perm_fini(who_perm_t *who_perm) 4627 { 4628 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4629 4630 while (node != NULL) { 4631 deleg_perm_node_t *next_node = 4632 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4633 4634 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4635 free(node); 4636 node = next_node; 4637 } 4638 4639 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4640 } 4641 4642 static inline void 4643 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4644 { 4645 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4646 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4647 4648 bzero(fsperm, sizeof (fs_perm_t)); 4649 4650 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4651 == NULL) 4652 nomem(); 4653 4654 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4655 == NULL) 4656 nomem(); 4657 4658 fsperm->fsp_set = fspset; 4659 fsperm->fsp_name = fsname; 4660 } 4661 4662 static inline void 4663 fs_perm_fini(fs_perm_t *fsperm) 4664 { 4665 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4666 while (node != NULL) { 4667 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4668 node); 4669 who_perm_t *who_perm = &node->who_perm; 4670 who_perm_fini(who_perm); 4671 uu_avl_remove(fsperm->fsp_sc_avl, node); 4672 free(node); 4673 node = next_node; 4674 } 4675 4676 node = uu_avl_first(fsperm->fsp_uge_avl); 4677 while (node != NULL) { 4678 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4679 node); 4680 who_perm_t *who_perm = &node->who_perm; 4681 who_perm_fini(who_perm); 4682 uu_avl_remove(fsperm->fsp_uge_avl, node); 4683 free(node); 4684 node = next_node; 4685 } 4686 4687 uu_avl_destroy(fsperm->fsp_sc_avl); 4688 uu_avl_destroy(fsperm->fsp_uge_avl); 4689 } 4690 4691 static void 4692 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4693 zfs_deleg_who_type_t who_type, const char *name, char locality) 4694 { 4695 uu_avl_index_t idx = 0; 4696 4697 deleg_perm_node_t *found_node = NULL; 4698 deleg_perm_t *deleg_perm = &node->dpn_perm; 4699 4700 deleg_perm_init(deleg_perm, who_type, name); 4701 4702 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4703 == NULL) 4704 uu_avl_insert(avl, node, idx); 4705 else { 4706 node = found_node; 4707 deleg_perm = &node->dpn_perm; 4708 } 4709 4710 4711 switch (locality) { 4712 case ZFS_DELEG_LOCAL: 4713 deleg_perm->dp_local = B_TRUE; 4714 break; 4715 case ZFS_DELEG_DESCENDENT: 4716 deleg_perm->dp_descend = B_TRUE; 4717 break; 4718 case ZFS_DELEG_NA: 4719 break; 4720 default: 4721 assert(B_FALSE); /* invalid locality */ 4722 } 4723 } 4724 4725 static inline int 4726 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4727 { 4728 nvpair_t *nvp = NULL; 4729 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4730 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4731 zfs_deleg_who_type_t who_type = who_perm->who_type; 4732 4733 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4734 const char *name = nvpair_name(nvp); 4735 data_type_t type = nvpair_type(nvp); 4736 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4737 deleg_perm_node_t *node = 4738 safe_malloc(sizeof (deleg_perm_node_t)); 4739 4740 assert(type == DATA_TYPE_BOOLEAN); 4741 4742 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4743 set_deleg_perm_node(avl, node, who_type, name, locality); 4744 } 4745 4746 return (0); 4747 } 4748 4749 static inline int 4750 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4751 { 4752 nvpair_t *nvp = NULL; 4753 fs_perm_set_t *fspset = fsperm->fsp_set; 4754 4755 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4756 nvlist_t *nvl2 = NULL; 4757 const char *name = nvpair_name(nvp); 4758 uu_avl_t *avl = NULL; 4759 uu_avl_pool_t *avl_pool = NULL; 4760 zfs_deleg_who_type_t perm_type = name[0]; 4761 char perm_locality = name[1]; 4762 const char *perm_name = name + 3; 4763 boolean_t is_set = B_TRUE; 4764 who_perm_t *who_perm = NULL; 4765 4766 assert('$' == name[2]); 4767 4768 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4769 return (-1); 4770 4771 switch (perm_type) { 4772 case ZFS_DELEG_CREATE: 4773 case ZFS_DELEG_CREATE_SETS: 4774 case ZFS_DELEG_NAMED_SET: 4775 case ZFS_DELEG_NAMED_SET_SETS: 4776 avl_pool = fspset->fsps_named_set_avl_pool; 4777 avl = fsperm->fsp_sc_avl; 4778 break; 4779 case ZFS_DELEG_USER: 4780 case ZFS_DELEG_USER_SETS: 4781 case ZFS_DELEG_GROUP: 4782 case ZFS_DELEG_GROUP_SETS: 4783 case ZFS_DELEG_EVERYONE: 4784 case ZFS_DELEG_EVERYONE_SETS: 4785 avl_pool = fspset->fsps_who_perm_avl_pool; 4786 avl = fsperm->fsp_uge_avl; 4787 break; 4788 4789 default: 4790 assert(!"unhandled zfs_deleg_who_type_t"); 4791 } 4792 4793 if (is_set) { 4794 who_perm_node_t *found_node = NULL; 4795 who_perm_node_t *node = safe_malloc( 4796 sizeof (who_perm_node_t)); 4797 who_perm = &node->who_perm; 4798 uu_avl_index_t idx = 0; 4799 4800 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4801 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4802 4803 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4804 == NULL) { 4805 if (avl == fsperm->fsp_uge_avl) { 4806 uid_t rid = 0; 4807 struct passwd *p = NULL; 4808 struct group *g = NULL; 4809 const char *nice_name = NULL; 4810 4811 switch (perm_type) { 4812 case ZFS_DELEG_USER_SETS: 4813 case ZFS_DELEG_USER: 4814 rid = atoi(perm_name); 4815 p = getpwuid(rid); 4816 if (p) 4817 nice_name = p->pw_name; 4818 break; 4819 case ZFS_DELEG_GROUP_SETS: 4820 case ZFS_DELEG_GROUP: 4821 rid = atoi(perm_name); 4822 g = getgrgid(rid); 4823 if (g) 4824 nice_name = g->gr_name; 4825 break; 4826 4827 default: 4828 break; 4829 } 4830 4831 if (nice_name != NULL) 4832 (void) strlcpy( 4833 node->who_perm.who_ug_name, 4834 nice_name, 256); 4835 } 4836 4837 uu_avl_insert(avl, node, idx); 4838 } else { 4839 node = found_node; 4840 who_perm = &node->who_perm; 4841 } 4842 } 4843 4844 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4845 } 4846 4847 return (0); 4848 } 4849 4850 static inline int 4851 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4852 { 4853 nvpair_t *nvp = NULL; 4854 uu_avl_index_t idx = 0; 4855 4856 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4857 nvlist_t *nvl2 = NULL; 4858 const char *fsname = nvpair_name(nvp); 4859 data_type_t type = nvpair_type(nvp); 4860 fs_perm_t *fsperm = NULL; 4861 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4862 if (node == NULL) 4863 nomem(); 4864 4865 fsperm = &node->fspn_fsperm; 4866 4867 assert(DATA_TYPE_NVLIST == type); 4868 4869 uu_list_node_init(node, &node->fspn_list_node, 4870 fspset->fsps_list_pool); 4871 4872 idx = uu_list_numnodes(fspset->fsps_list); 4873 fs_perm_init(fsperm, fspset, fsname); 4874 4875 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4876 return (-1); 4877 4878 (void) parse_fs_perm(fsperm, nvl2); 4879 4880 uu_list_insert(fspset->fsps_list, node, idx); 4881 } 4882 4883 return (0); 4884 } 4885 4886 static inline const char * 4887 deleg_perm_comment(zfs_deleg_note_t note) 4888 { 4889 const char *str = ""; 4890 4891 /* subcommands */ 4892 switch (note) { 4893 /* SUBCOMMANDS */ 4894 case ZFS_DELEG_NOTE_ALLOW: 4895 str = gettext("Must also have the permission that is being" 4896 "\n\t\t\t\tallowed"); 4897 break; 4898 case ZFS_DELEG_NOTE_CLONE: 4899 str = gettext("Must also have the 'create' ability and 'mount'" 4900 "\n\t\t\t\tability in the origin file system"); 4901 break; 4902 case ZFS_DELEG_NOTE_CREATE: 4903 str = gettext("Must also have the 'mount' ability"); 4904 break; 4905 case ZFS_DELEG_NOTE_DESTROY: 4906 str = gettext("Must also have the 'mount' ability"); 4907 break; 4908 case ZFS_DELEG_NOTE_DIFF: 4909 str = gettext("Allows lookup of paths within a dataset;" 4910 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4911 "\n\t\t\t\tin order to use zfs diff"); 4912 break; 4913 case ZFS_DELEG_NOTE_HOLD: 4914 str = gettext("Allows adding a user hold to a snapshot"); 4915 break; 4916 case ZFS_DELEG_NOTE_MOUNT: 4917 str = gettext("Allows mount/umount of ZFS datasets"); 4918 break; 4919 case ZFS_DELEG_NOTE_PROMOTE: 4920 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4921 " 'promote' ability in the origin file system"); 4922 break; 4923 case ZFS_DELEG_NOTE_RECEIVE: 4924 str = gettext("Must also have the 'mount' and 'create'" 4925 " ability"); 4926 break; 4927 case ZFS_DELEG_NOTE_RELEASE: 4928 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4929 "might destroy the snapshot"); 4930 break; 4931 case ZFS_DELEG_NOTE_RENAME: 4932 str = gettext("Must also have the 'mount' and 'create'" 4933 "\n\t\t\t\tability in the new parent"); 4934 break; 4935 case ZFS_DELEG_NOTE_ROLLBACK: 4936 str = gettext(""); 4937 break; 4938 case ZFS_DELEG_NOTE_SEND: 4939 str = gettext(""); 4940 break; 4941 case ZFS_DELEG_NOTE_SHARE: 4942 str = gettext("Allows sharing file systems over NFS or SMB" 4943 "\n\t\t\t\tprotocols"); 4944 break; 4945 case ZFS_DELEG_NOTE_SNAPSHOT: 4946 str = gettext(""); 4947 break; 4948 case ZFS_DELEG_NOTE_LOAD_KEY: 4949 str = gettext("Allows loading or unloading an encryption key"); 4950 break; 4951 case ZFS_DELEG_NOTE_CHANGE_KEY: 4952 str = gettext("Allows changing or adding an encryption key"); 4953 break; 4954 /* 4955 * case ZFS_DELEG_NOTE_VSCAN: 4956 * str = gettext(""); 4957 * break; 4958 */ 4959 /* OTHER */ 4960 case ZFS_DELEG_NOTE_GROUPQUOTA: 4961 str = gettext("Allows accessing any groupquota@... property"); 4962 break; 4963 case ZFS_DELEG_NOTE_GROUPUSED: 4964 str = gettext("Allows reading any groupused@... property"); 4965 break; 4966 case ZFS_DELEG_NOTE_USERPROP: 4967 str = gettext("Allows changing any user property"); 4968 break; 4969 case ZFS_DELEG_NOTE_USERQUOTA: 4970 str = gettext("Allows accessing any userquota@... property"); 4971 break; 4972 case ZFS_DELEG_NOTE_USERUSED: 4973 str = gettext("Allows reading any userused@... property"); 4974 break; 4975 case ZFS_DELEG_NOTE_USEROBJQUOTA: 4976 str = gettext("Allows accessing any userobjquota@... property"); 4977 break; 4978 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 4979 str = gettext("Allows accessing any \n\t\t\t\t" 4980 "groupobjquota@... property"); 4981 break; 4982 case ZFS_DELEG_NOTE_GROUPOBJUSED: 4983 str = gettext("Allows reading any groupobjused@... property"); 4984 break; 4985 case ZFS_DELEG_NOTE_USEROBJUSED: 4986 str = gettext("Allows reading any userobjused@... property"); 4987 break; 4988 case ZFS_DELEG_NOTE_PROJECTQUOTA: 4989 str = gettext("Allows accessing any projectquota@... property"); 4990 break; 4991 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 4992 str = gettext("Allows accessing any \n\t\t\t\t" 4993 "projectobjquota@... property"); 4994 break; 4995 case ZFS_DELEG_NOTE_PROJECTUSED: 4996 str = gettext("Allows reading any projectused@... property"); 4997 break; 4998 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 4999 str = gettext("Allows accessing any \n\t\t\t\t" 5000 "projectobjused@... property"); 5001 break; 5002 /* other */ 5003 default: 5004 str = ""; 5005 } 5006 5007 return (str); 5008 } 5009 5010 struct allow_opts { 5011 boolean_t local; 5012 boolean_t descend; 5013 boolean_t user; 5014 boolean_t group; 5015 boolean_t everyone; 5016 boolean_t create; 5017 boolean_t set; 5018 boolean_t recursive; /* unallow only */ 5019 boolean_t prt_usage; 5020 5021 boolean_t prt_perms; 5022 char *who; 5023 char *perms; 5024 const char *dataset; 5025 }; 5026 5027 static inline int 5028 prop_cmp(const void *a, const void *b) 5029 { 5030 const char *str1 = *(const char **)a; 5031 const char *str2 = *(const char **)b; 5032 return (strcmp(str1, str2)); 5033 } 5034 5035 static void 5036 allow_usage(boolean_t un, boolean_t requested, const char *msg) 5037 { 5038 const char *opt_desc[] = { 5039 "-h", gettext("show this help message and exit"), 5040 "-l", gettext("set permission locally"), 5041 "-d", gettext("set permission for descents"), 5042 "-u", gettext("set permission for user"), 5043 "-g", gettext("set permission for group"), 5044 "-e", gettext("set permission for everyone"), 5045 "-c", gettext("set create time permission"), 5046 "-s", gettext("define permission set"), 5047 /* unallow only */ 5048 "-r", gettext("remove permissions recursively"), 5049 }; 5050 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 5051 size_t allow_size = unallow_size - 2; 5052 const char *props[ZFS_NUM_PROPS]; 5053 int i; 5054 size_t count = 0; 5055 FILE *fp = requested ? stdout : stderr; 5056 zprop_desc_t *pdtbl = zfs_prop_get_table(); 5057 const char *fmt = gettext("%-16s %-14s\t%s\n"); 5058 5059 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 5060 HELP_ALLOW)); 5061 (void) fprintf(fp, gettext("Options:\n")); 5062 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 5063 const char *opt = opt_desc[i++]; 5064 const char *optdsc = opt_desc[i]; 5065 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 5066 } 5067 5068 (void) fprintf(fp, gettext("\nThe following permissions are " 5069 "supported:\n\n")); 5070 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 5071 gettext("NOTES")); 5072 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 5073 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 5074 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 5075 const char *perm_type = deleg_perm_type(perm_note); 5076 const char *perm_comment = deleg_perm_comment(perm_note); 5077 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 5078 } 5079 5080 for (i = 0; i < ZFS_NUM_PROPS; i++) { 5081 zprop_desc_t *pd = &pdtbl[i]; 5082 if (pd->pd_visible != B_TRUE) 5083 continue; 5084 5085 if (pd->pd_attr == PROP_READONLY) 5086 continue; 5087 5088 props[count++] = pd->pd_name; 5089 } 5090 props[count] = NULL; 5091 5092 qsort(props, count, sizeof (char *), prop_cmp); 5093 5094 for (i = 0; i < count; i++) 5095 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 5096 5097 if (msg != NULL) 5098 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 5099 5100 exit(requested ? 0 : 2); 5101 } 5102 5103 static inline const char * 5104 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 5105 char **permsp) 5106 { 5107 if (un && argc == expected_argc - 1) 5108 *permsp = NULL; 5109 else if (argc == expected_argc) 5110 *permsp = argv[argc - 2]; 5111 else 5112 allow_usage(un, B_FALSE, 5113 gettext("wrong number of parameters\n")); 5114 5115 return (argv[argc - 1]); 5116 } 5117 5118 static void 5119 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 5120 { 5121 int uge_sum = opts->user + opts->group + opts->everyone; 5122 int csuge_sum = opts->create + opts->set + uge_sum; 5123 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 5124 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 5125 5126 if (uge_sum > 1) 5127 allow_usage(un, B_FALSE, 5128 gettext("-u, -g, and -e are mutually exclusive\n")); 5129 5130 if (opts->prt_usage) { 5131 if (argc == 0 && all_sum == 0) 5132 allow_usage(un, B_TRUE, NULL); 5133 else 5134 usage(B_FALSE); 5135 } 5136 5137 if (opts->set) { 5138 if (csuge_sum > 1) 5139 allow_usage(un, B_FALSE, 5140 gettext("invalid options combined with -s\n")); 5141 5142 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5143 if (argv[0][0] != '@') 5144 allow_usage(un, B_FALSE, 5145 gettext("invalid set name: missing '@' prefix\n")); 5146 opts->who = argv[0]; 5147 } else if (opts->create) { 5148 if (ldcsuge_sum > 1) 5149 allow_usage(un, B_FALSE, 5150 gettext("invalid options combined with -c\n")); 5151 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5152 } else if (opts->everyone) { 5153 if (csuge_sum > 1) 5154 allow_usage(un, B_FALSE, 5155 gettext("invalid options combined with -e\n")); 5156 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5157 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 5158 == 0) { 5159 opts->everyone = B_TRUE; 5160 argc--; 5161 argv++; 5162 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5163 } else if (argc == 1 && !un) { 5164 opts->prt_perms = B_TRUE; 5165 opts->dataset = argv[argc-1]; 5166 } else { 5167 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5168 opts->who = argv[0]; 5169 } 5170 5171 if (!opts->local && !opts->descend) { 5172 opts->local = B_TRUE; 5173 opts->descend = B_TRUE; 5174 } 5175 } 5176 5177 static void 5178 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 5179 const char *who, char *perms, nvlist_t *top_nvl) 5180 { 5181 int i; 5182 char ld[2] = { '\0', '\0' }; 5183 char who_buf[MAXNAMELEN + 32]; 5184 char base_type = '\0'; 5185 char set_type = '\0'; 5186 nvlist_t *base_nvl = NULL; 5187 nvlist_t *set_nvl = NULL; 5188 nvlist_t *nvl; 5189 5190 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 5191 nomem(); 5192 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 5193 nomem(); 5194 5195 switch (type) { 5196 case ZFS_DELEG_NAMED_SET_SETS: 5197 case ZFS_DELEG_NAMED_SET: 5198 set_type = ZFS_DELEG_NAMED_SET_SETS; 5199 base_type = ZFS_DELEG_NAMED_SET; 5200 ld[0] = ZFS_DELEG_NA; 5201 break; 5202 case ZFS_DELEG_CREATE_SETS: 5203 case ZFS_DELEG_CREATE: 5204 set_type = ZFS_DELEG_CREATE_SETS; 5205 base_type = ZFS_DELEG_CREATE; 5206 ld[0] = ZFS_DELEG_NA; 5207 break; 5208 case ZFS_DELEG_USER_SETS: 5209 case ZFS_DELEG_USER: 5210 set_type = ZFS_DELEG_USER_SETS; 5211 base_type = ZFS_DELEG_USER; 5212 if (local) 5213 ld[0] = ZFS_DELEG_LOCAL; 5214 if (descend) 5215 ld[1] = ZFS_DELEG_DESCENDENT; 5216 break; 5217 case ZFS_DELEG_GROUP_SETS: 5218 case ZFS_DELEG_GROUP: 5219 set_type = ZFS_DELEG_GROUP_SETS; 5220 base_type = ZFS_DELEG_GROUP; 5221 if (local) 5222 ld[0] = ZFS_DELEG_LOCAL; 5223 if (descend) 5224 ld[1] = ZFS_DELEG_DESCENDENT; 5225 break; 5226 case ZFS_DELEG_EVERYONE_SETS: 5227 case ZFS_DELEG_EVERYONE: 5228 set_type = ZFS_DELEG_EVERYONE_SETS; 5229 base_type = ZFS_DELEG_EVERYONE; 5230 if (local) 5231 ld[0] = ZFS_DELEG_LOCAL; 5232 if (descend) 5233 ld[1] = ZFS_DELEG_DESCENDENT; 5234 break; 5235 5236 default: 5237 assert(set_type != '\0' && base_type != '\0'); 5238 } 5239 5240 if (perms != NULL) { 5241 char *curr = perms; 5242 char *end = curr + strlen(perms); 5243 5244 while (curr < end) { 5245 char *delim = strchr(curr, ','); 5246 if (delim == NULL) 5247 delim = end; 5248 else 5249 *delim = '\0'; 5250 5251 if (curr[0] == '@') 5252 nvl = set_nvl; 5253 else 5254 nvl = base_nvl; 5255 5256 (void) nvlist_add_boolean(nvl, curr); 5257 if (delim != end) 5258 *delim = ','; 5259 curr = delim + 1; 5260 } 5261 5262 for (i = 0; i < 2; i++) { 5263 char locality = ld[i]; 5264 if (locality == 0) 5265 continue; 5266 5267 if (!nvlist_empty(base_nvl)) { 5268 if (who != NULL) 5269 (void) snprintf(who_buf, 5270 sizeof (who_buf), "%c%c$%s", 5271 base_type, locality, who); 5272 else 5273 (void) snprintf(who_buf, 5274 sizeof (who_buf), "%c%c$", 5275 base_type, locality); 5276 5277 (void) nvlist_add_nvlist(top_nvl, who_buf, 5278 base_nvl); 5279 } 5280 5281 5282 if (!nvlist_empty(set_nvl)) { 5283 if (who != NULL) 5284 (void) snprintf(who_buf, 5285 sizeof (who_buf), "%c%c$%s", 5286 set_type, locality, who); 5287 else 5288 (void) snprintf(who_buf, 5289 sizeof (who_buf), "%c%c$", 5290 set_type, locality); 5291 5292 (void) nvlist_add_nvlist(top_nvl, who_buf, 5293 set_nvl); 5294 } 5295 } 5296 } else { 5297 for (i = 0; i < 2; i++) { 5298 char locality = ld[i]; 5299 if (locality == 0) 5300 continue; 5301 5302 if (who != NULL) 5303 (void) snprintf(who_buf, sizeof (who_buf), 5304 "%c%c$%s", base_type, locality, who); 5305 else 5306 (void) snprintf(who_buf, sizeof (who_buf), 5307 "%c%c$", base_type, locality); 5308 (void) nvlist_add_boolean(top_nvl, who_buf); 5309 5310 if (who != NULL) 5311 (void) snprintf(who_buf, sizeof (who_buf), 5312 "%c%c$%s", set_type, locality, who); 5313 else 5314 (void) snprintf(who_buf, sizeof (who_buf), 5315 "%c%c$", set_type, locality); 5316 (void) nvlist_add_boolean(top_nvl, who_buf); 5317 } 5318 } 5319 } 5320 5321 static int 5322 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5323 { 5324 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5325 nomem(); 5326 5327 if (opts->set) { 5328 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5329 opts->descend, opts->who, opts->perms, *nvlp); 5330 } else if (opts->create) { 5331 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5332 opts->descend, NULL, opts->perms, *nvlp); 5333 } else if (opts->everyone) { 5334 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5335 opts->descend, NULL, opts->perms, *nvlp); 5336 } else { 5337 char *curr = opts->who; 5338 char *end = curr + strlen(curr); 5339 5340 while (curr < end) { 5341 const char *who; 5342 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5343 char *endch; 5344 char *delim = strchr(curr, ','); 5345 char errbuf[256]; 5346 char id[64]; 5347 struct passwd *p = NULL; 5348 struct group *g = NULL; 5349 5350 uid_t rid; 5351 if (delim == NULL) 5352 delim = end; 5353 else 5354 *delim = '\0'; 5355 5356 rid = (uid_t)strtol(curr, &endch, 0); 5357 if (opts->user) { 5358 who_type = ZFS_DELEG_USER; 5359 if (*endch != '\0') 5360 p = getpwnam(curr); 5361 else 5362 p = getpwuid(rid); 5363 5364 if (p != NULL) 5365 rid = p->pw_uid; 5366 else { 5367 (void) snprintf(errbuf, 256, gettext( 5368 "invalid user %s"), curr); 5369 allow_usage(un, B_TRUE, errbuf); 5370 } 5371 } else if (opts->group) { 5372 who_type = ZFS_DELEG_GROUP; 5373 if (*endch != '\0') 5374 g = getgrnam(curr); 5375 else 5376 g = getgrgid(rid); 5377 5378 if (g != NULL) 5379 rid = g->gr_gid; 5380 else { 5381 (void) snprintf(errbuf, 256, gettext( 5382 "invalid group %s"), curr); 5383 allow_usage(un, B_TRUE, errbuf); 5384 } 5385 } else { 5386 if (*endch != '\0') { 5387 p = getpwnam(curr); 5388 } else { 5389 p = getpwuid(rid); 5390 } 5391 5392 if (p == NULL) { 5393 if (*endch != '\0') { 5394 g = getgrnam(curr); 5395 } else { 5396 g = getgrgid(rid); 5397 } 5398 } 5399 5400 if (p != NULL) { 5401 who_type = ZFS_DELEG_USER; 5402 rid = p->pw_uid; 5403 } else if (g != NULL) { 5404 who_type = ZFS_DELEG_GROUP; 5405 rid = g->gr_gid; 5406 } else { 5407 (void) snprintf(errbuf, 256, gettext( 5408 "invalid user/group %s"), curr); 5409 allow_usage(un, B_TRUE, errbuf); 5410 } 5411 } 5412 5413 (void) sprintf(id, "%u", rid); 5414 who = id; 5415 5416 store_allow_perm(who_type, opts->local, 5417 opts->descend, who, opts->perms, *nvlp); 5418 curr = delim + 1; 5419 } 5420 } 5421 5422 return (0); 5423 } 5424 5425 static void 5426 print_set_creat_perms(uu_avl_t *who_avl) 5427 { 5428 const char *sc_title[] = { 5429 gettext("Permission sets:\n"), 5430 gettext("Create time permissions:\n"), 5431 NULL 5432 }; 5433 const char **title_ptr = sc_title; 5434 who_perm_node_t *who_node = NULL; 5435 int prev_weight = -1; 5436 5437 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5438 who_node = uu_avl_next(who_avl, who_node)) { 5439 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5440 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5441 const char *who_name = who_node->who_perm.who_name; 5442 int weight = who_type2weight(who_type); 5443 boolean_t first = B_TRUE; 5444 deleg_perm_node_t *deleg_node; 5445 5446 if (prev_weight != weight) { 5447 (void) printf(*title_ptr++); 5448 prev_weight = weight; 5449 } 5450 5451 if (who_name == NULL || strnlen(who_name, 1) == 0) 5452 (void) printf("\t"); 5453 else 5454 (void) printf("\t%s ", who_name); 5455 5456 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5457 deleg_node = uu_avl_next(avl, deleg_node)) { 5458 if (first) { 5459 (void) printf("%s", 5460 deleg_node->dpn_perm.dp_name); 5461 first = B_FALSE; 5462 } else 5463 (void) printf(",%s", 5464 deleg_node->dpn_perm.dp_name); 5465 } 5466 5467 (void) printf("\n"); 5468 } 5469 } 5470 5471 static void 5472 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5473 const char *title) 5474 { 5475 who_perm_node_t *who_node = NULL; 5476 boolean_t prt_title = B_TRUE; 5477 uu_avl_walk_t *walk; 5478 5479 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5480 nomem(); 5481 5482 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5483 const char *who_name = who_node->who_perm.who_name; 5484 const char *nice_who_name = who_node->who_perm.who_ug_name; 5485 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5486 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5487 char delim = ' '; 5488 deleg_perm_node_t *deleg_node; 5489 boolean_t prt_who = B_TRUE; 5490 5491 for (deleg_node = uu_avl_first(avl); 5492 deleg_node != NULL; 5493 deleg_node = uu_avl_next(avl, deleg_node)) { 5494 if (local != deleg_node->dpn_perm.dp_local || 5495 descend != deleg_node->dpn_perm.dp_descend) 5496 continue; 5497 5498 if (prt_who) { 5499 const char *who = NULL; 5500 if (prt_title) { 5501 prt_title = B_FALSE; 5502 (void) printf(title); 5503 } 5504 5505 switch (who_type) { 5506 case ZFS_DELEG_USER_SETS: 5507 case ZFS_DELEG_USER: 5508 who = gettext("user"); 5509 if (nice_who_name) 5510 who_name = nice_who_name; 5511 break; 5512 case ZFS_DELEG_GROUP_SETS: 5513 case ZFS_DELEG_GROUP: 5514 who = gettext("group"); 5515 if (nice_who_name) 5516 who_name = nice_who_name; 5517 break; 5518 case ZFS_DELEG_EVERYONE_SETS: 5519 case ZFS_DELEG_EVERYONE: 5520 who = gettext("everyone"); 5521 who_name = NULL; 5522 break; 5523 5524 default: 5525 assert(who != NULL); 5526 } 5527 5528 prt_who = B_FALSE; 5529 if (who_name == NULL) 5530 (void) printf("\t%s", who); 5531 else 5532 (void) printf("\t%s %s", who, who_name); 5533 } 5534 5535 (void) printf("%c%s", delim, 5536 deleg_node->dpn_perm.dp_name); 5537 delim = ','; 5538 } 5539 5540 if (!prt_who) 5541 (void) printf("\n"); 5542 } 5543 5544 uu_avl_walk_end(walk); 5545 } 5546 5547 static void 5548 print_fs_perms(fs_perm_set_t *fspset) 5549 { 5550 fs_perm_node_t *node = NULL; 5551 char buf[MAXNAMELEN + 32]; 5552 const char *dsname = buf; 5553 5554 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5555 node = uu_list_next(fspset->fsps_list, node)) { 5556 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5557 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5558 int left = 0; 5559 5560 (void) snprintf(buf, sizeof (buf), 5561 gettext("---- Permissions on %s "), 5562 node->fspn_fsperm.fsp_name); 5563 (void) printf(dsname); 5564 left = 70 - strlen(buf); 5565 while (left-- > 0) 5566 (void) printf("-"); 5567 (void) printf("\n"); 5568 5569 print_set_creat_perms(sc_avl); 5570 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5571 gettext("Local permissions:\n")); 5572 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5573 gettext("Descendent permissions:\n")); 5574 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5575 gettext("Local+Descendent permissions:\n")); 5576 } 5577 } 5578 5579 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5580 5581 struct deleg_perms { 5582 boolean_t un; 5583 nvlist_t *nvl; 5584 }; 5585 5586 static int 5587 set_deleg_perms(zfs_handle_t *zhp, void *data) 5588 { 5589 struct deleg_perms *perms = (struct deleg_perms *)data; 5590 zfs_type_t zfs_type = zfs_get_type(zhp); 5591 5592 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5593 return (0); 5594 5595 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5596 } 5597 5598 static int 5599 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5600 { 5601 zfs_handle_t *zhp; 5602 nvlist_t *perm_nvl = NULL; 5603 nvlist_t *update_perm_nvl = NULL; 5604 int error = 1; 5605 int c; 5606 struct allow_opts opts = { 0 }; 5607 5608 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5609 5610 /* check opts */ 5611 while ((c = getopt(argc, argv, optstr)) != -1) { 5612 switch (c) { 5613 case 'l': 5614 opts.local = B_TRUE; 5615 break; 5616 case 'd': 5617 opts.descend = B_TRUE; 5618 break; 5619 case 'u': 5620 opts.user = B_TRUE; 5621 break; 5622 case 'g': 5623 opts.group = B_TRUE; 5624 break; 5625 case 'e': 5626 opts.everyone = B_TRUE; 5627 break; 5628 case 's': 5629 opts.set = B_TRUE; 5630 break; 5631 case 'c': 5632 opts.create = B_TRUE; 5633 break; 5634 case 'r': 5635 opts.recursive = B_TRUE; 5636 break; 5637 case ':': 5638 (void) fprintf(stderr, gettext("missing argument for " 5639 "'%c' option\n"), optopt); 5640 usage(B_FALSE); 5641 break; 5642 case 'h': 5643 opts.prt_usage = B_TRUE; 5644 break; 5645 case '?': 5646 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5647 optopt); 5648 usage(B_FALSE); 5649 } 5650 } 5651 5652 argc -= optind; 5653 argv += optind; 5654 5655 /* check arguments */ 5656 parse_allow_args(argc, argv, un, &opts); 5657 5658 /* try to open the dataset */ 5659 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5660 ZFS_TYPE_VOLUME)) == NULL) { 5661 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5662 opts.dataset); 5663 return (-1); 5664 } 5665 5666 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5667 goto cleanup2; 5668 5669 fs_perm_set_init(&fs_perm_set); 5670 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5671 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5672 goto cleanup1; 5673 } 5674 5675 if (opts.prt_perms) 5676 print_fs_perms(&fs_perm_set); 5677 else { 5678 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5679 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5680 goto cleanup0; 5681 5682 if (un && opts.recursive) { 5683 struct deleg_perms data = { un, update_perm_nvl }; 5684 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5685 &data) != 0) 5686 goto cleanup0; 5687 } 5688 } 5689 5690 error = 0; 5691 5692 cleanup0: 5693 nvlist_free(perm_nvl); 5694 nvlist_free(update_perm_nvl); 5695 cleanup1: 5696 fs_perm_set_fini(&fs_perm_set); 5697 cleanup2: 5698 zfs_close(zhp); 5699 5700 return (error); 5701 } 5702 5703 static int 5704 zfs_do_allow(int argc, char **argv) 5705 { 5706 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5707 } 5708 5709 static int 5710 zfs_do_unallow(int argc, char **argv) 5711 { 5712 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5713 } 5714 5715 static int 5716 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5717 { 5718 int errors = 0; 5719 int i; 5720 const char *tag; 5721 boolean_t recursive = B_FALSE; 5722 const char *opts = holding ? "rt" : "r"; 5723 int c; 5724 5725 /* check options */ 5726 while ((c = getopt(argc, argv, opts)) != -1) { 5727 switch (c) { 5728 case 'r': 5729 recursive = B_TRUE; 5730 break; 5731 case '?': 5732 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5733 optopt); 5734 usage(B_FALSE); 5735 } 5736 } 5737 5738 argc -= optind; 5739 argv += optind; 5740 5741 /* check number of arguments */ 5742 if (argc < 2) 5743 usage(B_FALSE); 5744 5745 tag = argv[0]; 5746 --argc; 5747 ++argv; 5748 5749 if (holding && tag[0] == '.') { 5750 /* tags starting with '.' are reserved for libzfs */ 5751 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5752 usage(B_FALSE); 5753 } 5754 5755 for (i = 0; i < argc; ++i) { 5756 zfs_handle_t *zhp; 5757 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5758 const char *delim; 5759 char *path = argv[i]; 5760 5761 delim = strchr(path, '@'); 5762 if (delim == NULL) { 5763 (void) fprintf(stderr, 5764 gettext("'%s' is not a snapshot\n"), path); 5765 ++errors; 5766 continue; 5767 } 5768 (void) strncpy(parent, path, delim - path); 5769 parent[delim - path] = '\0'; 5770 5771 zhp = zfs_open(g_zfs, parent, 5772 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5773 if (zhp == NULL) { 5774 ++errors; 5775 continue; 5776 } 5777 if (holding) { 5778 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5779 ++errors; 5780 } else { 5781 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5782 ++errors; 5783 } 5784 zfs_close(zhp); 5785 } 5786 5787 return (errors != 0); 5788 } 5789 5790 /* 5791 * zfs hold [-r] [-t] <tag> <snap> ... 5792 * 5793 * -r Recursively hold 5794 * 5795 * Apply a user-hold with the given tag to the list of snapshots. 5796 */ 5797 static int 5798 zfs_do_hold(int argc, char **argv) 5799 { 5800 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5801 } 5802 5803 /* 5804 * zfs release [-r] <tag> <snap> ... 5805 * 5806 * -r Recursively release 5807 * 5808 * Release a user-hold with the given tag from the list of snapshots. 5809 */ 5810 static int 5811 zfs_do_release(int argc, char **argv) 5812 { 5813 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5814 } 5815 5816 typedef struct holds_cbdata { 5817 boolean_t cb_recursive; 5818 const char *cb_snapname; 5819 nvlist_t **cb_nvlp; 5820 size_t cb_max_namelen; 5821 size_t cb_max_taglen; 5822 } holds_cbdata_t; 5823 5824 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5825 #define DATETIME_BUF_LEN (32) 5826 /* 5827 * 5828 */ 5829 static void 5830 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5831 { 5832 int i; 5833 nvpair_t *nvp = NULL; 5834 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5835 const char *col; 5836 5837 if (!scripted) { 5838 for (i = 0; i < 3; i++) { 5839 col = gettext(hdr_cols[i]); 5840 if (i < 2) 5841 (void) printf("%-*s ", i ? tagwidth : nwidth, 5842 col); 5843 else 5844 (void) printf("%s\n", col); 5845 } 5846 } 5847 5848 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5849 char *zname = nvpair_name(nvp); 5850 nvlist_t *nvl2; 5851 nvpair_t *nvp2 = NULL; 5852 (void) nvpair_value_nvlist(nvp, &nvl2); 5853 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5854 char tsbuf[DATETIME_BUF_LEN]; 5855 char *tagname = nvpair_name(nvp2); 5856 uint64_t val = 0; 5857 time_t time; 5858 struct tm t; 5859 5860 (void) nvpair_value_uint64(nvp2, &val); 5861 time = (time_t)val; 5862 (void) localtime_r(&time, &t); 5863 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5864 gettext(STRFTIME_FMT_STR), &t); 5865 5866 if (scripted) { 5867 (void) printf("%s\t%s\t%s\n", zname, 5868 tagname, tsbuf); 5869 } else { 5870 (void) printf("%-*s %-*s %s\n", nwidth, 5871 zname, tagwidth, tagname, tsbuf); 5872 } 5873 } 5874 } 5875 } 5876 5877 /* 5878 * Generic callback function to list a dataset or snapshot. 5879 */ 5880 static int 5881 holds_callback(zfs_handle_t *zhp, void *data) 5882 { 5883 holds_cbdata_t *cbp = data; 5884 nvlist_t *top_nvl = *cbp->cb_nvlp; 5885 nvlist_t *nvl = NULL; 5886 nvpair_t *nvp = NULL; 5887 const char *zname = zfs_get_name(zhp); 5888 size_t znamelen = strlen(zname); 5889 5890 if (cbp->cb_recursive) { 5891 const char *snapname; 5892 char *delim = strchr(zname, '@'); 5893 if (delim == NULL) 5894 return (0); 5895 5896 snapname = delim + 1; 5897 if (strcmp(cbp->cb_snapname, snapname)) 5898 return (0); 5899 } 5900 5901 if (zfs_get_holds(zhp, &nvl) != 0) 5902 return (-1); 5903 5904 if (znamelen > cbp->cb_max_namelen) 5905 cbp->cb_max_namelen = znamelen; 5906 5907 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5908 const char *tag = nvpair_name(nvp); 5909 size_t taglen = strlen(tag); 5910 if (taglen > cbp->cb_max_taglen) 5911 cbp->cb_max_taglen = taglen; 5912 } 5913 5914 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5915 } 5916 5917 /* 5918 * zfs holds [-r] <snap> ... 5919 * 5920 * -r Recursively hold 5921 */ 5922 static int 5923 zfs_do_holds(int argc, char **argv) 5924 { 5925 int errors = 0; 5926 int c; 5927 int i; 5928 boolean_t scripted = B_FALSE; 5929 boolean_t recursive = B_FALSE; 5930 const char *opts = "rH"; 5931 nvlist_t *nvl; 5932 5933 int types = ZFS_TYPE_SNAPSHOT; 5934 holds_cbdata_t cb = { 0 }; 5935 5936 int limit = 0; 5937 int ret = 0; 5938 int flags = 0; 5939 5940 /* check options */ 5941 while ((c = getopt(argc, argv, opts)) != -1) { 5942 switch (c) { 5943 case 'r': 5944 recursive = B_TRUE; 5945 break; 5946 case 'H': 5947 scripted = B_TRUE; 5948 break; 5949 case '?': 5950 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5951 optopt); 5952 usage(B_FALSE); 5953 } 5954 } 5955 5956 if (recursive) { 5957 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5958 flags |= ZFS_ITER_RECURSE; 5959 } 5960 5961 argc -= optind; 5962 argv += optind; 5963 5964 /* check number of arguments */ 5965 if (argc < 1) 5966 usage(B_FALSE); 5967 5968 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5969 nomem(); 5970 5971 for (i = 0; i < argc; ++i) { 5972 char *snapshot = argv[i]; 5973 const char *delim; 5974 const char *snapname; 5975 5976 delim = strchr(snapshot, '@'); 5977 if (delim == NULL) { 5978 (void) fprintf(stderr, 5979 gettext("'%s' is not a snapshot\n"), snapshot); 5980 ++errors; 5981 continue; 5982 } 5983 snapname = delim + 1; 5984 if (recursive) 5985 snapshot[delim - snapshot] = '\0'; 5986 5987 cb.cb_recursive = recursive; 5988 cb.cb_snapname = snapname; 5989 cb.cb_nvlp = &nvl; 5990 5991 /* 5992 * 1. collect holds data, set format options 5993 */ 5994 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5995 holds_callback, &cb); 5996 if (ret != 0) 5997 ++errors; 5998 } 5999 6000 /* 6001 * 2. print holds data 6002 */ 6003 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 6004 6005 if (nvlist_empty(nvl)) 6006 (void) printf(gettext("no datasets available\n")); 6007 6008 nvlist_free(nvl); 6009 6010 return (0 != errors); 6011 } 6012 6013 #define CHECK_SPINNER 30 6014 #define SPINNER_TIME 3 /* seconds */ 6015 #define MOUNT_TIME 1 /* seconds */ 6016 6017 typedef struct get_all_state { 6018 boolean_t ga_verbose; 6019 get_all_cb_t *ga_cbp; 6020 } get_all_state_t; 6021 6022 static int 6023 get_one_dataset(zfs_handle_t *zhp, void *data) 6024 { 6025 static char *spin[] = { "-", "\\", "|", "/" }; 6026 static int spinval = 0; 6027 static int spincheck = 0; 6028 static time_t last_spin_time = (time_t)0; 6029 get_all_state_t *state = data; 6030 zfs_type_t type = zfs_get_type(zhp); 6031 6032 if (state->ga_verbose) { 6033 if (--spincheck < 0) { 6034 time_t now = time(NULL); 6035 if (last_spin_time + SPINNER_TIME < now) { 6036 update_progress(spin[spinval++ % 4]); 6037 last_spin_time = now; 6038 } 6039 spincheck = CHECK_SPINNER; 6040 } 6041 } 6042 6043 /* 6044 * Interate over any nested datasets. 6045 */ 6046 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 6047 zfs_close(zhp); 6048 return (1); 6049 } 6050 6051 /* 6052 * Skip any datasets whose type does not match. 6053 */ 6054 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 6055 zfs_close(zhp); 6056 return (0); 6057 } 6058 libzfs_add_handle(state->ga_cbp, zhp); 6059 assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc); 6060 6061 return (0); 6062 } 6063 6064 static void 6065 get_all_datasets(get_all_cb_t *cbp, boolean_t verbose) 6066 { 6067 get_all_state_t state = { 6068 .ga_verbose = verbose, 6069 .ga_cbp = cbp 6070 }; 6071 6072 if (verbose) 6073 set_progress_header(gettext("Reading ZFS config")); 6074 (void) zfs_iter_root(g_zfs, get_one_dataset, &state); 6075 6076 if (verbose) 6077 finish_progress(gettext("done.")); 6078 } 6079 6080 /* 6081 * Generic callback for sharing or mounting filesystems. Because the code is so 6082 * similar, we have a common function with an extra parameter to determine which 6083 * mode we are using. 6084 */ 6085 typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t; 6086 6087 typedef struct share_mount_state { 6088 share_mount_op_t sm_op; 6089 boolean_t sm_verbose; 6090 int sm_flags; 6091 char *sm_options; 6092 char *sm_proto; /* only valid for OP_SHARE */ 6093 mutex_t sm_lock; /* protects the remaining fields */ 6094 uint_t sm_total; /* number of filesystems to process */ 6095 uint_t sm_done; /* number of filesystems processed */ 6096 int sm_status; /* -1 if any of the share/mount operations failed */ 6097 } share_mount_state_t; 6098 6099 /* 6100 * Share or mount a dataset. 6101 */ 6102 static int 6103 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 6104 boolean_t explicit, const char *options) 6105 { 6106 char mountpoint[ZFS_MAXPROPLEN]; 6107 char shareopts[ZFS_MAXPROPLEN]; 6108 char smbshareopts[ZFS_MAXPROPLEN]; 6109 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 6110 struct mnttab mnt; 6111 uint64_t zoned, canmount; 6112 boolean_t shared_nfs, shared_smb; 6113 6114 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 6115 6116 /* 6117 * Check to make sure we can mount/share this dataset. If we 6118 * are in the global zone and the filesystem is exported to a 6119 * local zone, or if we are in a local zone and the 6120 * filesystem is not exported, then it is an error. 6121 */ 6122 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 6123 6124 if (zoned && getzoneid() == GLOBAL_ZONEID) { 6125 if (!explicit) 6126 return (0); 6127 6128 (void) fprintf(stderr, gettext("cannot %s '%s': " 6129 "dataset is exported to a local zone\n"), cmdname, 6130 zfs_get_name(zhp)); 6131 return (1); 6132 6133 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 6134 if (!explicit) 6135 return (0); 6136 6137 (void) fprintf(stderr, gettext("cannot %s '%s': " 6138 "permission denied\n"), cmdname, 6139 zfs_get_name(zhp)); 6140 return (1); 6141 } 6142 6143 /* 6144 * Ignore any filesystems which don't apply to us. This 6145 * includes those with a legacy mountpoint, or those with 6146 * legacy share options. 6147 */ 6148 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6149 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 6150 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 6151 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 6152 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 6153 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 6154 6155 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 6156 strcmp(smbshareopts, "off") == 0) { 6157 if (!explicit) 6158 return (0); 6159 6160 (void) fprintf(stderr, gettext("cannot share '%s': " 6161 "legacy share\n"), zfs_get_name(zhp)); 6162 (void) fprintf(stderr, gettext("use share(1M) to " 6163 "share this filesystem, or set " 6164 "sharenfs property on\n")); 6165 return (1); 6166 } 6167 6168 /* 6169 * We cannot share or mount legacy filesystems. If the 6170 * shareopts is non-legacy but the mountpoint is legacy, we 6171 * treat it as a legacy share. 6172 */ 6173 if (strcmp(mountpoint, "legacy") == 0) { 6174 if (!explicit) 6175 return (0); 6176 6177 (void) fprintf(stderr, gettext("cannot %s '%s': " 6178 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 6179 (void) fprintf(stderr, gettext("use %s(1M) to " 6180 "%s this filesystem\n"), cmdname, cmdname); 6181 return (1); 6182 } 6183 6184 if (strcmp(mountpoint, "none") == 0) { 6185 if (!explicit) 6186 return (0); 6187 6188 (void) fprintf(stderr, gettext("cannot %s '%s': no " 6189 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 6190 return (1); 6191 } 6192 6193 /* 6194 * canmount explicit outcome 6195 * on no pass through 6196 * on yes pass through 6197 * off no return 0 6198 * off yes display error, return 1 6199 * noauto no return 0 6200 * noauto yes pass through 6201 */ 6202 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 6203 if (canmount == ZFS_CANMOUNT_OFF) { 6204 if (!explicit) 6205 return (0); 6206 6207 (void) fprintf(stderr, gettext("cannot %s '%s': " 6208 "'canmount' property is set to 'off'\n"), cmdname, 6209 zfs_get_name(zhp)); 6210 return (1); 6211 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 6212 return (0); 6213 } 6214 6215 /* 6216 * If this filesystem is encrypted and does not have 6217 * a loaded key, we can not mount it. 6218 */ 6219 if ((flags & MS_CRYPT) == 0 && 6220 zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF && 6221 zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS) == 6222 ZFS_KEYSTATUS_UNAVAILABLE) { 6223 if (!explicit) 6224 return (0); 6225 6226 (void) fprintf(stderr, gettext("cannot %s '%s': " 6227 "encryption key not loaded\n"), cmdname, zfs_get_name(zhp)); 6228 return (1); 6229 } 6230 6231 /* 6232 * If this filesystem is inconsistent and has a receive resume 6233 * token, we can not mount it. 6234 */ 6235 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 6236 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 6237 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 6238 if (!explicit) 6239 return (0); 6240 6241 (void) fprintf(stderr, gettext("cannot %s '%s': " 6242 "Contains partially-completed state from " 6243 "\"zfs receive -s\", which can be resumed with " 6244 "\"zfs send -t\"\n"), 6245 cmdname, zfs_get_name(zhp)); 6246 return (1); 6247 } 6248 6249 /* 6250 * At this point, we have verified that the mountpoint and/or 6251 * shareopts are appropriate for auto management. If the 6252 * filesystem is already mounted or shared, return (failing 6253 * for explicit requests); otherwise mount or share the 6254 * filesystem. 6255 */ 6256 switch (op) { 6257 case OP_SHARE: 6258 6259 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 6260 shared_smb = zfs_is_shared_smb(zhp, NULL); 6261 6262 if ((shared_nfs && shared_smb) || 6263 (shared_nfs && strcmp(shareopts, "on") == 0 && 6264 strcmp(smbshareopts, "off") == 0) || 6265 (shared_smb && strcmp(smbshareopts, "on") == 0 && 6266 strcmp(shareopts, "off") == 0)) { 6267 if (!explicit) 6268 return (0); 6269 6270 (void) fprintf(stderr, gettext("cannot share " 6271 "'%s': filesystem already shared\n"), 6272 zfs_get_name(zhp)); 6273 return (1); 6274 } 6275 6276 if (!zfs_is_mounted(zhp, NULL) && 6277 zfs_mount(zhp, NULL, flags) != 0) 6278 return (1); 6279 6280 if (protocol == NULL) { 6281 if (zfs_shareall(zhp) != 0) 6282 return (1); 6283 } else if (strcmp(protocol, "nfs") == 0) { 6284 if (zfs_share_nfs(zhp)) 6285 return (1); 6286 } else if (strcmp(protocol, "smb") == 0) { 6287 if (zfs_share_smb(zhp)) 6288 return (1); 6289 } else { 6290 (void) fprintf(stderr, gettext("cannot share " 6291 "'%s': invalid share type '%s' " 6292 "specified\n"), 6293 zfs_get_name(zhp), protocol); 6294 return (1); 6295 } 6296 6297 break; 6298 6299 case OP_MOUNT: 6300 if (options == NULL) 6301 mnt.mnt_mntopts = ""; 6302 else 6303 mnt.mnt_mntopts = (char *)options; 6304 6305 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6306 zfs_is_mounted(zhp, NULL)) { 6307 if (!explicit) 6308 return (0); 6309 6310 (void) fprintf(stderr, gettext("cannot mount " 6311 "'%s': filesystem already mounted\n"), 6312 zfs_get_name(zhp)); 6313 return (1); 6314 } 6315 6316 if (zfs_mount(zhp, options, flags) != 0) 6317 return (1); 6318 break; 6319 } 6320 6321 return (0); 6322 } 6323 6324 /* 6325 * Reports progress in the form "(current/total)". Not thread-safe. 6326 */ 6327 static void 6328 report_mount_progress(int current, int total) 6329 { 6330 static time_t last_progress_time = 0; 6331 time_t now = time(NULL); 6332 char info[32]; 6333 6334 /* display header if we're here for the first time */ 6335 if (current == 1) { 6336 set_progress_header(gettext("Mounting ZFS filesystems")); 6337 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6338 /* too soon to report again */ 6339 return; 6340 } 6341 6342 last_progress_time = now; 6343 6344 (void) sprintf(info, "(%d/%d)", current, total); 6345 6346 if (current == total) 6347 finish_progress(info); 6348 else 6349 update_progress(info); 6350 } 6351 6352 /* 6353 * zfs_foreach_mountpoint() callback that mounts or shares one filesystem and 6354 * updates the progress meter. 6355 */ 6356 static int 6357 share_mount_one_cb(zfs_handle_t *zhp, void *arg) 6358 { 6359 share_mount_state_t *sms = arg; 6360 int ret; 6361 6362 ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto, 6363 B_FALSE, sms->sm_options); 6364 6365 mutex_enter(&sms->sm_lock); 6366 if (ret != 0) 6367 sms->sm_status = ret; 6368 sms->sm_done++; 6369 if (sms->sm_verbose) 6370 report_mount_progress(sms->sm_done, sms->sm_total); 6371 mutex_exit(&sms->sm_lock); 6372 return (ret); 6373 } 6374 6375 static void 6376 append_options(char *mntopts, char *newopts) 6377 { 6378 int len = strlen(mntopts); 6379 6380 /* original length plus new string to append plus 1 for the comma */ 6381 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6382 (void) fprintf(stderr, gettext("the opts argument for " 6383 "'%c' option is too long (more than %d chars)\n"), 6384 "-o", MNT_LINE_MAX); 6385 usage(B_FALSE); 6386 } 6387 6388 if (*mntopts) 6389 mntopts[len++] = ','; 6390 6391 (void) strcpy(&mntopts[len], newopts); 6392 } 6393 6394 static int 6395 share_mount(int op, int argc, char **argv) 6396 { 6397 int do_all = 0; 6398 boolean_t verbose = B_FALSE; 6399 int c, ret = 0; 6400 char *options = NULL; 6401 int flags = 0; 6402 6403 /* check options */ 6404 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:O" : "al")) 6405 != -1) { 6406 switch (c) { 6407 case 'a': 6408 do_all = 1; 6409 break; 6410 case 'v': 6411 verbose = B_TRUE; 6412 break; 6413 case 'l': 6414 flags |= MS_CRYPT; 6415 break; 6416 case 'o': 6417 if (*optarg == '\0') { 6418 (void) fprintf(stderr, gettext("empty mount " 6419 "options (-o) specified\n")); 6420 usage(B_FALSE); 6421 } 6422 6423 if (options == NULL) 6424 options = safe_malloc(MNT_LINE_MAX + 1); 6425 6426 /* option validation is done later */ 6427 append_options(options, optarg); 6428 break; 6429 6430 case 'O': 6431 flags |= MS_OVERLAY; 6432 break; 6433 case ':': 6434 (void) fprintf(stderr, gettext("missing argument for " 6435 "'%c' option\n"), optopt); 6436 usage(B_FALSE); 6437 break; 6438 case '?': 6439 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6440 optopt); 6441 usage(B_FALSE); 6442 } 6443 } 6444 6445 argc -= optind; 6446 argv += optind; 6447 6448 /* check number of arguments */ 6449 if (do_all) { 6450 char *protocol = NULL; 6451 6452 if (op == OP_SHARE && argc > 0) { 6453 if (strcmp(argv[0], "nfs") != 0 && 6454 strcmp(argv[0], "smb") != 0) { 6455 (void) fprintf(stderr, gettext("share type " 6456 "must be 'nfs' or 'smb'\n")); 6457 usage(B_FALSE); 6458 } 6459 protocol = argv[0]; 6460 argc--; 6461 argv++; 6462 } 6463 6464 if (argc != 0) { 6465 (void) fprintf(stderr, gettext("too many arguments\n")); 6466 usage(B_FALSE); 6467 } 6468 6469 start_progress_timer(); 6470 get_all_cb_t cb = { 0 }; 6471 get_all_datasets(&cb, verbose); 6472 6473 if (cb.cb_used == 0) 6474 return (0); 6475 6476 if (op == OP_SHARE) { 6477 sa_init_selective_arg_t sharearg; 6478 sharearg.zhandle_arr = cb.cb_handles; 6479 sharearg.zhandle_len = cb.cb_used; 6480 if ((ret = zfs_init_libshare_arg(g_zfs, 6481 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) { 6482 (void) fprintf(stderr, gettext( 6483 "Could not initialize libshare, %d"), ret); 6484 return (ret); 6485 } 6486 } 6487 6488 share_mount_state_t share_mount_state = { 0 }; 6489 share_mount_state.sm_op = op; 6490 share_mount_state.sm_verbose = verbose; 6491 share_mount_state.sm_flags = flags; 6492 share_mount_state.sm_options = options; 6493 share_mount_state.sm_proto = protocol; 6494 share_mount_state.sm_total = cb.cb_used; 6495 (void) mutex_init(&share_mount_state.sm_lock, 6496 LOCK_NORMAL | LOCK_ERRORCHECK, NULL); 6497 /* 6498 * libshare isn't mt-safe, so only do the operation in parallel 6499 * if we're mounting. 6500 */ 6501 zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used, 6502 share_mount_one_cb, &share_mount_state, op == OP_MOUNT); 6503 ret = share_mount_state.sm_status; 6504 6505 for (int i = 0; i < cb.cb_used; i++) 6506 zfs_close(cb.cb_handles[i]); 6507 free(cb.cb_handles); 6508 } else if (argc == 0) { 6509 struct mnttab entry; 6510 6511 if ((op == OP_SHARE) || (options != NULL)) { 6512 (void) fprintf(stderr, gettext("missing filesystem " 6513 "argument (specify -a for all)\n")); 6514 usage(B_FALSE); 6515 } 6516 6517 /* 6518 * When mount is given no arguments, go through /etc/mnttab and 6519 * display any active ZFS mounts. We hide any snapshots, since 6520 * they are controlled automatically. 6521 */ 6522 rewind(mnttab_file); 6523 while (getmntent(mnttab_file, &entry) == 0) { 6524 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6525 strchr(entry.mnt_special, '@') != NULL) 6526 continue; 6527 6528 (void) printf("%-30s %s\n", entry.mnt_special, 6529 entry.mnt_mountp); 6530 } 6531 6532 } else { 6533 zfs_handle_t *zhp; 6534 6535 if (argc > 1) { 6536 (void) fprintf(stderr, 6537 gettext("too many arguments\n")); 6538 usage(B_FALSE); 6539 } 6540 6541 if ((zhp = zfs_open(g_zfs, argv[0], 6542 ZFS_TYPE_FILESYSTEM)) == NULL) { 6543 ret = 1; 6544 } else { 6545 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6546 options); 6547 zfs_close(zhp); 6548 } 6549 } 6550 6551 return (ret); 6552 } 6553 6554 /* 6555 * zfs mount -a [nfs] 6556 * zfs mount filesystem 6557 * 6558 * Mount all filesystems, or mount the given filesystem. 6559 */ 6560 static int 6561 zfs_do_mount(int argc, char **argv) 6562 { 6563 return (share_mount(OP_MOUNT, argc, argv)); 6564 } 6565 6566 /* 6567 * zfs share -a [nfs | smb] 6568 * zfs share filesystem 6569 * 6570 * Share all filesystems, or share the given filesystem. 6571 */ 6572 static int 6573 zfs_do_share(int argc, char **argv) 6574 { 6575 return (share_mount(OP_SHARE, argc, argv)); 6576 } 6577 6578 typedef struct unshare_unmount_node { 6579 zfs_handle_t *un_zhp; 6580 char *un_mountp; 6581 uu_avl_node_t un_avlnode; 6582 } unshare_unmount_node_t; 6583 6584 /* ARGSUSED */ 6585 static int 6586 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6587 { 6588 const unshare_unmount_node_t *l = larg; 6589 const unshare_unmount_node_t *r = rarg; 6590 6591 return (strcmp(l->un_mountp, r->un_mountp)); 6592 } 6593 6594 /* 6595 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6596 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6597 * and unmount it appropriately. 6598 */ 6599 static int 6600 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6601 { 6602 zfs_handle_t *zhp; 6603 int ret = 0; 6604 struct stat64 statbuf; 6605 struct extmnttab entry; 6606 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6607 ino_t path_inode; 6608 6609 /* 6610 * Search for the path in /etc/mnttab. Rather than looking for the 6611 * specific path, which can be fooled by non-standard paths (i.e. ".." 6612 * or "//"), we stat() the path and search for the corresponding 6613 * (major,minor) device pair. 6614 */ 6615 if (stat64(path, &statbuf) != 0) { 6616 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6617 cmdname, path, strerror(errno)); 6618 return (1); 6619 } 6620 path_inode = statbuf.st_ino; 6621 6622 /* 6623 * Search for the given (major,minor) pair in the mount table. 6624 */ 6625 rewind(mnttab_file); 6626 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6627 if (entry.mnt_major == major(statbuf.st_dev) && 6628 entry.mnt_minor == minor(statbuf.st_dev)) 6629 break; 6630 } 6631 if (ret != 0) { 6632 if (op == OP_SHARE) { 6633 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6634 "currently mounted\n"), cmdname, path); 6635 return (1); 6636 } 6637 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6638 path); 6639 if ((ret = umount2(path, flags)) != 0) 6640 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6641 strerror(errno)); 6642 return (ret != 0); 6643 } 6644 6645 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6646 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6647 "filesystem\n"), cmdname, path); 6648 return (1); 6649 } 6650 6651 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6652 ZFS_TYPE_FILESYSTEM)) == NULL) 6653 return (1); 6654 6655 ret = 1; 6656 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6657 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6658 cmdname, path, strerror(errno)); 6659 goto out; 6660 } else if (statbuf.st_ino != path_inode) { 6661 (void) fprintf(stderr, gettext("cannot " 6662 "%s '%s': not a mountpoint\n"), cmdname, path); 6663 goto out; 6664 } 6665 6666 if (op == OP_SHARE) { 6667 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6668 char smbshare_prop[ZFS_MAXPROPLEN]; 6669 6670 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6671 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6672 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6673 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6674 6675 if (strcmp(nfs_mnt_prop, "off") == 0 && 6676 strcmp(smbshare_prop, "off") == 0) { 6677 (void) fprintf(stderr, gettext("cannot unshare " 6678 "'%s': legacy share\n"), path); 6679 (void) fprintf(stderr, gettext("use " 6680 "unshare(1M) to unshare this filesystem\n")); 6681 } else if (!zfs_is_shared(zhp)) { 6682 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6683 "not currently shared\n"), path); 6684 } else { 6685 ret = zfs_unshareall_bypath(zhp, path); 6686 } 6687 } else { 6688 char mtpt_prop[ZFS_MAXPROPLEN]; 6689 6690 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6691 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6692 6693 if (is_manual) { 6694 ret = zfs_unmount(zhp, NULL, flags); 6695 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6696 (void) fprintf(stderr, gettext("cannot unmount " 6697 "'%s': legacy mountpoint\n"), 6698 zfs_get_name(zhp)); 6699 (void) fprintf(stderr, gettext("use umount(1M) " 6700 "to unmount this filesystem\n")); 6701 } else { 6702 ret = zfs_unmountall(zhp, flags); 6703 } 6704 } 6705 6706 out: 6707 zfs_close(zhp); 6708 6709 return (ret != 0); 6710 } 6711 6712 /* 6713 * Generic callback for unsharing or unmounting a filesystem. 6714 */ 6715 static int 6716 unshare_unmount(int op, int argc, char **argv) 6717 { 6718 int do_all = 0; 6719 int flags = 0; 6720 int ret = 0; 6721 int c; 6722 zfs_handle_t *zhp; 6723 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6724 char sharesmb[ZFS_MAXPROPLEN]; 6725 6726 /* check options */ 6727 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6728 switch (c) { 6729 case 'a': 6730 do_all = 1; 6731 break; 6732 case 'f': 6733 flags = MS_FORCE; 6734 break; 6735 case '?': 6736 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6737 optopt); 6738 usage(B_FALSE); 6739 } 6740 } 6741 6742 argc -= optind; 6743 argv += optind; 6744 6745 if (do_all) { 6746 /* 6747 * We could make use of zfs_for_each() to walk all datasets in 6748 * the system, but this would be very inefficient, especially 6749 * since we would have to linearly search /etc/mnttab for each 6750 * one. Instead, do one pass through /etc/mnttab looking for 6751 * zfs entries and call zfs_unmount() for each one. 6752 * 6753 * Things get a little tricky if the administrator has created 6754 * mountpoints beneath other ZFS filesystems. In this case, we 6755 * have to unmount the deepest filesystems first. To accomplish 6756 * this, we place all the mountpoints in an AVL tree sorted by 6757 * the special type (dataset name), and walk the result in 6758 * reverse to make sure to get any snapshots first. 6759 */ 6760 struct mnttab entry; 6761 uu_avl_pool_t *pool; 6762 uu_avl_t *tree = NULL; 6763 unshare_unmount_node_t *node; 6764 uu_avl_index_t idx; 6765 uu_avl_walk_t *walk; 6766 6767 if (argc != 0) { 6768 (void) fprintf(stderr, gettext("too many arguments\n")); 6769 usage(B_FALSE); 6770 } 6771 6772 if (((pool = uu_avl_pool_create("unmount_pool", 6773 sizeof (unshare_unmount_node_t), 6774 offsetof(unshare_unmount_node_t, un_avlnode), 6775 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6776 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6777 nomem(); 6778 6779 rewind(mnttab_file); 6780 while (getmntent(mnttab_file, &entry) == 0) { 6781 6782 /* ignore non-ZFS entries */ 6783 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6784 continue; 6785 6786 /* ignore snapshots */ 6787 if (strchr(entry.mnt_special, '@') != NULL) 6788 continue; 6789 6790 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6791 ZFS_TYPE_FILESYSTEM)) == NULL) { 6792 ret = 1; 6793 continue; 6794 } 6795 6796 /* 6797 * Ignore datasets that are excluded/restricted by 6798 * parent pool name. 6799 */ 6800 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6801 zfs_close(zhp); 6802 continue; 6803 } 6804 6805 switch (op) { 6806 case OP_SHARE: 6807 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6808 nfs_mnt_prop, 6809 sizeof (nfs_mnt_prop), 6810 NULL, NULL, 0, B_FALSE) == 0); 6811 if (strcmp(nfs_mnt_prop, "off") != 0) 6812 break; 6813 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6814 nfs_mnt_prop, 6815 sizeof (nfs_mnt_prop), 6816 NULL, NULL, 0, B_FALSE) == 0); 6817 if (strcmp(nfs_mnt_prop, "off") == 0) 6818 continue; 6819 break; 6820 case OP_MOUNT: 6821 /* Ignore legacy mounts */ 6822 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6823 nfs_mnt_prop, 6824 sizeof (nfs_mnt_prop), 6825 NULL, NULL, 0, B_FALSE) == 0); 6826 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6827 continue; 6828 /* Ignore canmount=noauto mounts */ 6829 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6830 ZFS_CANMOUNT_NOAUTO) 6831 continue; 6832 default: 6833 break; 6834 } 6835 6836 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6837 node->un_zhp = zhp; 6838 node->un_mountp = safe_strdup(entry.mnt_mountp); 6839 6840 uu_avl_node_init(node, &node->un_avlnode, pool); 6841 6842 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6843 uu_avl_insert(tree, node, idx); 6844 } else { 6845 zfs_close(node->un_zhp); 6846 free(node->un_mountp); 6847 free(node); 6848 } 6849 } 6850 6851 /* 6852 * Initialize libshare SA_INIT_SHARE_API_SELECTIVE here 6853 * to avoid unnecessary load/unload of the libshare API 6854 * per shared dataset downstream. 6855 */ 6856 if (op == OP_SHARE) { 6857 get_all_cb_t dslist = { 0 }; 6858 get_all_datasets(&dslist, B_FALSE); 6859 6860 if (dslist.cb_used != 0) { 6861 sa_init_selective_arg_t sharearg; 6862 sharearg.zhandle_arr = dslist.cb_handles; 6863 sharearg.zhandle_len = dslist.cb_used; 6864 if ((ret = zfs_init_libshare_arg(g_zfs, 6865 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != 6866 SA_OK) { 6867 (void) fprintf(stderr, gettext( 6868 "Could not initialize libshare, " 6869 "%d"), ret); 6870 return (1); 6871 } 6872 } 6873 } 6874 6875 /* 6876 * Walk the AVL tree in reverse, unmounting each filesystem and 6877 * removing it from the AVL tree in the process. 6878 */ 6879 if ((walk = uu_avl_walk_start(tree, 6880 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6881 nomem(); 6882 6883 while ((node = uu_avl_walk_next(walk)) != NULL) { 6884 uu_avl_remove(tree, node); 6885 6886 switch (op) { 6887 case OP_SHARE: 6888 if (zfs_unshareall_bypath(node->un_zhp, 6889 node->un_mountp) != 0) 6890 ret = 1; 6891 break; 6892 6893 case OP_MOUNT: 6894 if (zfs_unmount(node->un_zhp, 6895 node->un_mountp, flags) != 0) 6896 ret = 1; 6897 break; 6898 } 6899 6900 zfs_close(node->un_zhp); 6901 free(node->un_mountp); 6902 free(node); 6903 } 6904 6905 uu_avl_walk_end(walk); 6906 uu_avl_destroy(tree); 6907 uu_avl_pool_destroy(pool); 6908 6909 } else { 6910 if (argc != 1) { 6911 if (argc == 0) 6912 (void) fprintf(stderr, 6913 gettext("missing filesystem argument\n")); 6914 else 6915 (void) fprintf(stderr, 6916 gettext("too many arguments\n")); 6917 usage(B_FALSE); 6918 } 6919 6920 /* 6921 * We have an argument, but it may be a full path or a ZFS 6922 * filesystem. Pass full paths off to unmount_path() (shared by 6923 * manual_unmount), otherwise open the filesystem and pass to 6924 * zfs_unmount(). 6925 */ 6926 if (argv[0][0] == '/') 6927 return (unshare_unmount_path(op, argv[0], 6928 flags, B_FALSE)); 6929 6930 if ((zhp = zfs_open(g_zfs, argv[0], 6931 ZFS_TYPE_FILESYSTEM)) == NULL) 6932 return (1); 6933 6934 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6935 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6936 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6937 NULL, 0, B_FALSE) == 0); 6938 6939 switch (op) { 6940 case OP_SHARE: 6941 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6942 nfs_mnt_prop, 6943 sizeof (nfs_mnt_prop), 6944 NULL, NULL, 0, B_FALSE) == 0); 6945 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6946 sharesmb, sizeof (sharesmb), NULL, NULL, 6947 0, B_FALSE) == 0); 6948 6949 if (strcmp(nfs_mnt_prop, "off") == 0 && 6950 strcmp(sharesmb, "off") == 0) { 6951 (void) fprintf(stderr, gettext("cannot " 6952 "unshare '%s': legacy share\n"), 6953 zfs_get_name(zhp)); 6954 (void) fprintf(stderr, gettext("use " 6955 "unshare(1M) to unshare this " 6956 "filesystem\n")); 6957 ret = 1; 6958 } else if (!zfs_is_shared(zhp)) { 6959 (void) fprintf(stderr, gettext("cannot " 6960 "unshare '%s': not currently " 6961 "shared\n"), zfs_get_name(zhp)); 6962 ret = 1; 6963 } else if (zfs_unshareall(zhp) != 0) { 6964 ret = 1; 6965 } 6966 break; 6967 6968 case OP_MOUNT: 6969 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6970 (void) fprintf(stderr, gettext("cannot " 6971 "unmount '%s': legacy " 6972 "mountpoint\n"), zfs_get_name(zhp)); 6973 (void) fprintf(stderr, gettext("use " 6974 "umount(1M) to unmount this " 6975 "filesystem\n")); 6976 ret = 1; 6977 } else if (!zfs_is_mounted(zhp, NULL)) { 6978 (void) fprintf(stderr, gettext("cannot " 6979 "unmount '%s': not currently " 6980 "mounted\n"), 6981 zfs_get_name(zhp)); 6982 ret = 1; 6983 } else if (zfs_unmountall(zhp, flags) != 0) { 6984 ret = 1; 6985 } 6986 break; 6987 } 6988 6989 zfs_close(zhp); 6990 } 6991 6992 return (ret); 6993 } 6994 6995 /* 6996 * zfs unmount -a 6997 * zfs unmount filesystem 6998 * 6999 * Unmount all filesystems, or a specific ZFS filesystem. 7000 */ 7001 static int 7002 zfs_do_unmount(int argc, char **argv) 7003 { 7004 return (unshare_unmount(OP_MOUNT, argc, argv)); 7005 } 7006 7007 /* 7008 * zfs unshare -a 7009 * zfs unshare filesystem 7010 * 7011 * Unshare all filesystems, or a specific ZFS filesystem. 7012 */ 7013 static int 7014 zfs_do_unshare(int argc, char **argv) 7015 { 7016 return (unshare_unmount(OP_SHARE, argc, argv)); 7017 } 7018 7019 /* 7020 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 7021 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 7022 */ 7023 static int 7024 manual_mount(int argc, char **argv) 7025 { 7026 zfs_handle_t *zhp; 7027 char mountpoint[ZFS_MAXPROPLEN]; 7028 char mntopts[MNT_LINE_MAX] = { '\0' }; 7029 int ret = 0; 7030 int c; 7031 int flags = 0; 7032 char *dataset, *path; 7033 7034 /* check options */ 7035 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 7036 switch (c) { 7037 case 'o': 7038 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 7039 break; 7040 case 'O': 7041 flags |= MS_OVERLAY; 7042 break; 7043 case 'm': 7044 flags |= MS_NOMNTTAB; 7045 break; 7046 case ':': 7047 (void) fprintf(stderr, gettext("missing argument for " 7048 "'%c' option\n"), optopt); 7049 usage(B_FALSE); 7050 break; 7051 case '?': 7052 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7053 optopt); 7054 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 7055 "<path>\n")); 7056 return (2); 7057 } 7058 } 7059 7060 argc -= optind; 7061 argv += optind; 7062 7063 /* check that we only have two arguments */ 7064 if (argc != 2) { 7065 if (argc == 0) 7066 (void) fprintf(stderr, gettext("missing dataset " 7067 "argument\n")); 7068 else if (argc == 1) 7069 (void) fprintf(stderr, 7070 gettext("missing mountpoint argument\n")); 7071 else 7072 (void) fprintf(stderr, gettext("too many arguments\n")); 7073 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 7074 return (2); 7075 } 7076 7077 dataset = argv[0]; 7078 path = argv[1]; 7079 7080 /* try to open the dataset */ 7081 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 7082 return (1); 7083 7084 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 7085 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 7086 7087 /* check for legacy mountpoint and complain appropriately */ 7088 ret = 0; 7089 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 7090 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 7091 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 7092 (void) fprintf(stderr, gettext("mount failed: %s\n"), 7093 strerror(errno)); 7094 ret = 1; 7095 } 7096 } else { 7097 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 7098 "mounted using 'mount -F zfs'\n"), dataset); 7099 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 7100 "instead.\n"), path); 7101 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 7102 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 7103 (void) fprintf(stderr, gettext("See zfs(1M) for more " 7104 "information.\n")); 7105 ret = 1; 7106 } 7107 7108 return (ret); 7109 } 7110 7111 /* 7112 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 7113 * unmounts of non-legacy filesystems, as this is the dominant administrative 7114 * interface. 7115 */ 7116 static int 7117 manual_unmount(int argc, char **argv) 7118 { 7119 int flags = 0; 7120 int c; 7121 7122 /* check options */ 7123 while ((c = getopt(argc, argv, "f")) != -1) { 7124 switch (c) { 7125 case 'f': 7126 flags = MS_FORCE; 7127 break; 7128 case '?': 7129 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7130 optopt); 7131 (void) fprintf(stderr, gettext("usage: unmount [-f] " 7132 "<path>\n")); 7133 return (2); 7134 } 7135 } 7136 7137 argc -= optind; 7138 argv += optind; 7139 7140 /* check arguments */ 7141 if (argc != 1) { 7142 if (argc == 0) 7143 (void) fprintf(stderr, gettext("missing path " 7144 "argument\n")); 7145 else 7146 (void) fprintf(stderr, gettext("too many arguments\n")); 7147 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 7148 return (2); 7149 } 7150 7151 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 7152 } 7153 7154 static int 7155 find_command_idx(char *command, int *idx) 7156 { 7157 int i; 7158 7159 for (i = 0; i < NCOMMAND; i++) { 7160 if (command_table[i].name == NULL) 7161 continue; 7162 7163 if (strcmp(command, command_table[i].name) == 0) { 7164 *idx = i; 7165 return (0); 7166 } 7167 } 7168 return (1); 7169 } 7170 7171 static int 7172 zfs_do_diff(int argc, char **argv) 7173 { 7174 zfs_handle_t *zhp; 7175 int flags = 0; 7176 char *tosnap = NULL; 7177 char *fromsnap = NULL; 7178 char *atp, *copy; 7179 int err = 0; 7180 int c; 7181 7182 while ((c = getopt(argc, argv, "FHt")) != -1) { 7183 switch (c) { 7184 case 'F': 7185 flags |= ZFS_DIFF_CLASSIFY; 7186 break; 7187 case 'H': 7188 flags |= ZFS_DIFF_PARSEABLE; 7189 break; 7190 case 't': 7191 flags |= ZFS_DIFF_TIMESTAMP; 7192 break; 7193 default: 7194 (void) fprintf(stderr, 7195 gettext("invalid option '%c'\n"), optopt); 7196 usage(B_FALSE); 7197 } 7198 } 7199 7200 argc -= optind; 7201 argv += optind; 7202 7203 if (argc < 1) { 7204 (void) fprintf(stderr, 7205 gettext("must provide at least one snapshot name\n")); 7206 usage(B_FALSE); 7207 } 7208 7209 if (argc > 2) { 7210 (void) fprintf(stderr, gettext("too many arguments\n")); 7211 usage(B_FALSE); 7212 } 7213 7214 fromsnap = argv[0]; 7215 tosnap = (argc == 2) ? argv[1] : NULL; 7216 7217 copy = NULL; 7218 if (*fromsnap != '@') 7219 copy = strdup(fromsnap); 7220 else if (tosnap) 7221 copy = strdup(tosnap); 7222 if (copy == NULL) 7223 usage(B_FALSE); 7224 7225 if ((atp = strchr(copy, '@')) != NULL) 7226 *atp = '\0'; 7227 7228 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 7229 return (1); 7230 7231 free(copy); 7232 7233 /* 7234 * Ignore SIGPIPE so that the library can give us 7235 * information on any failure 7236 */ 7237 (void) sigignore(SIGPIPE); 7238 7239 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7240 7241 zfs_close(zhp); 7242 7243 return (err != 0); 7244 } 7245 7246 /* 7247 * zfs remap <filesystem | volume> 7248 * 7249 * Remap the indirect blocks in the given fileystem or volume. 7250 */ 7251 static int 7252 zfs_do_remap(int argc, char **argv) 7253 { 7254 const char *fsname; 7255 int err = 0; 7256 int c; 7257 7258 /* check options */ 7259 while ((c = getopt(argc, argv, "")) != -1) { 7260 switch (c) { 7261 case '?': 7262 (void) fprintf(stderr, 7263 gettext("invalid option '%c'\n"), optopt); 7264 usage(B_FALSE); 7265 } 7266 } 7267 7268 if (argc != 2) { 7269 (void) fprintf(stderr, gettext("wrong number of arguments\n")); 7270 usage(B_FALSE); 7271 } 7272 7273 fsname = argv[1]; 7274 err = zfs_remap_indirects(g_zfs, fsname); 7275 7276 return (err); 7277 } 7278 7279 /* 7280 * zfs bookmark <fs@snap> <fs#bmark> 7281 * 7282 * Creates a bookmark with the given name from the given snapshot. 7283 */ 7284 static int 7285 zfs_do_bookmark(int argc, char **argv) 7286 { 7287 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 7288 zfs_handle_t *zhp; 7289 nvlist_t *nvl; 7290 int ret = 0; 7291 int c; 7292 7293 /* check options */ 7294 while ((c = getopt(argc, argv, "")) != -1) { 7295 switch (c) { 7296 case '?': 7297 (void) fprintf(stderr, 7298 gettext("invalid option '%c'\n"), optopt); 7299 goto usage; 7300 } 7301 } 7302 7303 argc -= optind; 7304 argv += optind; 7305 7306 /* check number of arguments */ 7307 if (argc < 1) { 7308 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7309 goto usage; 7310 } 7311 if (argc < 2) { 7312 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7313 goto usage; 7314 } 7315 7316 if (strchr(argv[1], '#') == NULL) { 7317 (void) fprintf(stderr, 7318 gettext("invalid bookmark name '%s' -- " 7319 "must contain a '#'\n"), argv[1]); 7320 goto usage; 7321 } 7322 7323 if (argv[0][0] == '@') { 7324 /* 7325 * Snapshot name begins with @. 7326 * Default to same fs as bookmark. 7327 */ 7328 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7329 *strchr(snapname, '#') = '\0'; 7330 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7331 } else { 7332 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7333 } 7334 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7335 if (zhp == NULL) 7336 goto usage; 7337 zfs_close(zhp); 7338 7339 7340 nvl = fnvlist_alloc(); 7341 fnvlist_add_string(nvl, argv[1], snapname); 7342 ret = lzc_bookmark(nvl, NULL); 7343 fnvlist_free(nvl); 7344 7345 if (ret != 0) { 7346 const char *err_msg; 7347 char errbuf[1024]; 7348 7349 (void) snprintf(errbuf, sizeof (errbuf), 7350 dgettext(TEXT_DOMAIN, 7351 "cannot create bookmark '%s'"), argv[1]); 7352 7353 switch (ret) { 7354 case EXDEV: 7355 err_msg = "bookmark is in a different pool"; 7356 break; 7357 case EEXIST: 7358 err_msg = "bookmark exists"; 7359 break; 7360 case EINVAL: 7361 err_msg = "invalid argument"; 7362 break; 7363 case ENOTSUP: 7364 err_msg = "bookmark feature not enabled"; 7365 break; 7366 case ENOSPC: 7367 err_msg = "out of space"; 7368 break; 7369 default: 7370 err_msg = "unknown error"; 7371 break; 7372 } 7373 (void) fprintf(stderr, "%s: %s\n", errbuf, 7374 dgettext(TEXT_DOMAIN, err_msg)); 7375 } 7376 7377 return (ret != 0); 7378 7379 usage: 7380 usage(B_FALSE); 7381 return (-1); 7382 } 7383 7384 static int 7385 zfs_do_channel_program(int argc, char **argv) 7386 { 7387 int ret, fd; 7388 char c; 7389 char *progbuf, *filename, *poolname; 7390 size_t progsize, progread; 7391 nvlist_t *outnvl; 7392 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7393 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7394 boolean_t sync_flag = B_TRUE, json_output = B_FALSE; 7395 zpool_handle_t *zhp; 7396 7397 /* check options */ 7398 while (-1 != 7399 (c = getopt(argc, argv, "jnt:(instr-limit)m:(memory-limit)"))) { 7400 switch (c) { 7401 case 't': 7402 case 'm': { 7403 uint64_t arg; 7404 char *endp; 7405 7406 errno = 0; 7407 arg = strtoull(optarg, &endp, 0); 7408 if (errno != 0 || *endp != '\0') { 7409 (void) fprintf(stderr, gettext( 7410 "invalid argument " 7411 "'%s': expected integer\n"), optarg); 7412 goto usage; 7413 } 7414 7415 if (c == 't') { 7416 if (arg > ZCP_MAX_INSTRLIMIT || arg == 0) { 7417 (void) fprintf(stderr, gettext( 7418 "Invalid instruction limit: " 7419 "%s\n"), optarg); 7420 return (1); 7421 } else { 7422 instrlimit = arg; 7423 } 7424 } else { 7425 ASSERT3U(c, ==, 'm'); 7426 if (arg > ZCP_MAX_MEMLIMIT || arg == 0) { 7427 (void) fprintf(stderr, gettext( 7428 "Invalid memory limit: " 7429 "%s\n"), optarg); 7430 return (1); 7431 } else { 7432 memlimit = arg; 7433 } 7434 } 7435 break; 7436 } 7437 case 'n': { 7438 sync_flag = B_FALSE; 7439 break; 7440 } 7441 case 'j': { 7442 json_output = B_TRUE; 7443 break; 7444 } 7445 case '?': 7446 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7447 optopt); 7448 goto usage; 7449 } 7450 } 7451 7452 argc -= optind; 7453 argv += optind; 7454 7455 if (argc < 2) { 7456 (void) fprintf(stderr, 7457 gettext("invalid number of arguments\n")); 7458 goto usage; 7459 } 7460 7461 poolname = argv[0]; 7462 filename = argv[1]; 7463 if (strcmp(filename, "-") == 0) { 7464 fd = 0; 7465 filename = "standard input"; 7466 } else if ((fd = open(filename, O_RDONLY)) < 0) { 7467 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 7468 filename, strerror(errno)); 7469 return (1); 7470 } 7471 7472 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 7473 (void) fprintf(stderr, gettext("cannot open pool '%s'"), 7474 poolname); 7475 return (1); 7476 } 7477 zpool_close(zhp); 7478 7479 /* 7480 * Read in the channel program, expanding the program buffer as 7481 * necessary. 7482 */ 7483 progread = 0; 7484 progsize = 1024; 7485 progbuf = safe_malloc(progsize); 7486 do { 7487 ret = read(fd, progbuf + progread, progsize - progread); 7488 progread += ret; 7489 if (progread == progsize && ret > 0) { 7490 progsize *= 2; 7491 progbuf = safe_realloc(progbuf, progsize); 7492 } 7493 } while (ret > 0); 7494 7495 if (fd != 0) 7496 (void) close(fd); 7497 if (ret < 0) { 7498 free(progbuf); 7499 (void) fprintf(stderr, 7500 gettext("cannot read '%s': %s\n"), 7501 filename, strerror(errno)); 7502 return (1); 7503 } 7504 progbuf[progread] = '\0'; 7505 7506 /* 7507 * Any remaining arguments are passed as arguments to the lua script as 7508 * a string array: 7509 * { 7510 * "argv" -> [ "arg 1", ... "arg n" ], 7511 * } 7512 */ 7513 nvlist_t *argnvl = fnvlist_alloc(); 7514 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); 7515 7516 if (sync_flag) { 7517 ret = lzc_channel_program(poolname, progbuf, 7518 instrlimit, memlimit, argnvl, &outnvl); 7519 } else { 7520 ret = lzc_channel_program_nosync(poolname, progbuf, 7521 instrlimit, memlimit, argnvl, &outnvl); 7522 } 7523 7524 if (ret != 0) { 7525 /* 7526 * On error, report the error message handed back by lua if one 7527 * exists. Otherwise, generate an appropriate error message, 7528 * falling back on strerror() for an unexpected return code. 7529 */ 7530 char *errstring = NULL; 7531 if (nvlist_exists(outnvl, ZCP_RET_ERROR)) { 7532 (void) nvlist_lookup_string(outnvl, 7533 ZCP_RET_ERROR, &errstring); 7534 if (errstring == NULL) 7535 errstring = strerror(ret); 7536 } else { 7537 switch (ret) { 7538 case EINVAL: 7539 errstring = 7540 "Invalid instruction or memory limit."; 7541 break; 7542 case ENOMEM: 7543 errstring = "Return value too large."; 7544 break; 7545 case ENOSPC: 7546 errstring = "Memory limit exhausted."; 7547 break; 7548 case ETIME: 7549 errstring = "Timed out."; 7550 break; 7551 case EPERM: 7552 errstring = "Permission denied. Channel " 7553 "programs must be run as root."; 7554 break; 7555 default: 7556 errstring = strerror(ret); 7557 } 7558 } 7559 (void) fprintf(stderr, 7560 gettext("Channel program execution failed:\n%s\n"), 7561 errstring); 7562 } else { 7563 if (json_output) { 7564 (void) nvlist_print_json(stdout, outnvl); 7565 } else if (nvlist_empty(outnvl)) { 7566 (void) fprintf(stdout, gettext("Channel program fully " 7567 "executed and did not produce output.\n")); 7568 } else { 7569 (void) fprintf(stdout, gettext("Channel program fully " 7570 "executed and produced output:\n")); 7571 dump_nvlist(outnvl, 4); 7572 } 7573 } 7574 7575 free(progbuf); 7576 fnvlist_free(outnvl); 7577 fnvlist_free(argnvl); 7578 return (ret != 0); 7579 7580 usage: 7581 usage(B_FALSE); 7582 return (-1); 7583 } 7584 7585 typedef struct loadkey_cbdata { 7586 boolean_t cb_loadkey; 7587 boolean_t cb_recursive; 7588 boolean_t cb_noop; 7589 char *cb_keylocation; 7590 uint64_t cb_numfailed; 7591 uint64_t cb_numattempted; 7592 } loadkey_cbdata_t; 7593 7594 static int 7595 load_key_callback(zfs_handle_t *zhp, void *data) 7596 { 7597 int ret; 7598 boolean_t is_encroot; 7599 loadkey_cbdata_t *cb = data; 7600 uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 7601 7602 /* 7603 * If we are working recursively, we want to skip loading / unloading 7604 * keys for non-encryption roots and datasets whose keys are already 7605 * in the desired end-state. 7606 */ 7607 if (cb->cb_recursive) { 7608 ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); 7609 if (ret != 0) 7610 return (ret); 7611 if (!is_encroot) 7612 return (0); 7613 7614 if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) || 7615 (!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE)) 7616 return (0); 7617 } 7618 7619 cb->cb_numattempted++; 7620 7621 if (cb->cb_loadkey) 7622 ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation); 7623 else 7624 ret = zfs_crypto_unload_key(zhp); 7625 7626 if (ret != 0) { 7627 cb->cb_numfailed++; 7628 return (ret); 7629 } 7630 7631 return (0); 7632 } 7633 7634 static int 7635 load_unload_keys(int argc, char **argv, boolean_t loadkey) 7636 { 7637 int c, ret = 0, flags = 0; 7638 boolean_t do_all = B_FALSE; 7639 loadkey_cbdata_t cb = { 0 }; 7640 7641 cb.cb_loadkey = loadkey; 7642 7643 while ((c = getopt(argc, argv, "anrL:")) != -1) { 7644 /* noop and alternate keylocations only apply to zfs load-key */ 7645 if (loadkey) { 7646 switch (c) { 7647 case 'n': 7648 cb.cb_noop = B_TRUE; 7649 continue; 7650 case 'L': 7651 cb.cb_keylocation = optarg; 7652 continue; 7653 default: 7654 break; 7655 } 7656 } 7657 7658 switch (c) { 7659 case 'a': 7660 do_all = B_TRUE; 7661 cb.cb_recursive = B_TRUE; 7662 break; 7663 case 'r': 7664 flags |= ZFS_ITER_RECURSE; 7665 cb.cb_recursive = B_TRUE; 7666 break; 7667 default: 7668 (void) fprintf(stderr, 7669 gettext("invalid option '%c'\n"), optopt); 7670 usage(B_FALSE); 7671 } 7672 } 7673 7674 argc -= optind; 7675 argv += optind; 7676 7677 if (!do_all && argc == 0) { 7678 (void) fprintf(stderr, 7679 gettext("Missing dataset argument or -a option\n")); 7680 usage(B_FALSE); 7681 } 7682 7683 if (do_all && argc != 0) { 7684 (void) fprintf(stderr, 7685 gettext("Cannot specify dataset with -a option\n")); 7686 usage(B_FALSE); 7687 } 7688 7689 if (cb.cb_recursive && cb.cb_keylocation != NULL && 7690 strcmp(cb.cb_keylocation, "prompt") != 0) { 7691 (void) fprintf(stderr, gettext("alternate keylocation may only " 7692 "be 'prompt' with -r or -a\n")); 7693 usage(B_FALSE); 7694 } 7695 7696 ret = zfs_for_each(argc, argv, flags, 7697 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, NULL, NULL, 0, 7698 load_key_callback, &cb); 7699 7700 if (cb.cb_noop || (cb.cb_recursive && cb.cb_numattempted != 0)) { 7701 (void) printf(gettext("%llu / %llu key(s) successfully %s\n"), 7702 (u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed), 7703 (u_longlong_t)cb.cb_numattempted, 7704 loadkey ? (cb.cb_noop ? "verified" : "loaded") : 7705 "unloaded"); 7706 } 7707 7708 if (cb.cb_numfailed != 0) 7709 ret = -1; 7710 7711 return (ret); 7712 } 7713 7714 static int 7715 zfs_do_load_key(int argc, char **argv) 7716 { 7717 return (load_unload_keys(argc, argv, B_TRUE)); 7718 } 7719 7720 7721 static int 7722 zfs_do_unload_key(int argc, char **argv) 7723 { 7724 return (load_unload_keys(argc, argv, B_FALSE)); 7725 } 7726 7727 static int 7728 zfs_do_change_key(int argc, char **argv) 7729 { 7730 int c, ret; 7731 uint64_t keystatus; 7732 boolean_t loadkey = B_FALSE, inheritkey = B_FALSE; 7733 zfs_handle_t *zhp = NULL; 7734 nvlist_t *props = fnvlist_alloc(); 7735 7736 while ((c = getopt(argc, argv, "lio:")) != -1) { 7737 switch (c) { 7738 case 'l': 7739 loadkey = B_TRUE; 7740 break; 7741 case 'i': 7742 inheritkey = B_TRUE; 7743 break; 7744 case 'o': 7745 if (!parseprop(props, optarg)) { 7746 nvlist_free(props); 7747 return (1); 7748 } 7749 break; 7750 default: 7751 (void) fprintf(stderr, 7752 gettext("invalid option '%c'\n"), optopt); 7753 usage(B_FALSE); 7754 } 7755 } 7756 7757 if (inheritkey && !nvlist_empty(props)) { 7758 (void) fprintf(stderr, 7759 gettext("Properties not allowed for inheriting\n")); 7760 usage(B_FALSE); 7761 } 7762 7763 argc -= optind; 7764 argv += optind; 7765 7766 if (argc < 1) { 7767 (void) fprintf(stderr, gettext("Missing dataset argument\n")); 7768 usage(B_FALSE); 7769 } 7770 7771 if (argc > 1) { 7772 (void) fprintf(stderr, gettext("Too many arguments\n")); 7773 usage(B_FALSE); 7774 } 7775 7776 zhp = zfs_open(g_zfs, argv[argc - 1], 7777 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 7778 if (zhp == NULL) 7779 usage(B_FALSE); 7780 7781 if (loadkey) { 7782 keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 7783 if (keystatus != ZFS_KEYSTATUS_AVAILABLE) { 7784 ret = zfs_crypto_load_key(zhp, B_FALSE, NULL); 7785 if (ret != 0) { 7786 nvlist_free(props); 7787 zfs_close(zhp); 7788 return (-1); 7789 } 7790 } 7791 7792 /* refresh the properties so the new keystatus is visible */ 7793 zfs_refresh_properties(zhp); 7794 } 7795 7796 ret = zfs_crypto_rewrap(zhp, props, inheritkey); 7797 if (ret != 0) { 7798 nvlist_free(props); 7799 zfs_close(zhp); 7800 return (-1); 7801 } 7802 7803 nvlist_free(props); 7804 zfs_close(zhp); 7805 return (0); 7806 } 7807 7808 /* 7809 * 1) zfs project [-d|-r] <file|directory ...> 7810 * List project ID and inherit flag of file(s) or directories. 7811 * -d: List the directory itself, not its children. 7812 * -r: List subdirectories recursively. 7813 * 7814 * 2) zfs project -C [-k] [-r] <file|directory ...> 7815 * Clear project inherit flag and/or ID on the file(s) or directories. 7816 * -k: Keep the project ID unchanged. If not specified, the project ID 7817 * will be reset as zero. 7818 * -r: Clear on subdirectories recursively. 7819 * 7820 * 3) zfs project -c [-0] [-d|-r] [-p id] <file|directory ...> 7821 * Check project ID and inherit flag on the file(s) or directories, 7822 * report the outliers. 7823 * -0: Print file name followed by a NUL instead of newline. 7824 * -d: Check the directory itself, not its children. 7825 * -p: Specify the referenced ID for comparing with the target file(s) 7826 * or directories' project IDs. If not specified, the target (top) 7827 * directory's project ID will be used as the referenced one. 7828 * -r: Check subdirectories recursively. 7829 * 7830 * 4) zfs project [-p id] [-r] [-s] <file|directory ...> 7831 * Set project ID and/or inherit flag on the file(s) or directories. 7832 * -p: Set the project ID as the given id. 7833 * -r: Set on subdirectory recursively. If not specify "-p" option, 7834 * it will use top-level directory's project ID as the given id, 7835 * then set both project ID and inherit flag on all descendants 7836 * of the top-level directory. 7837 * -s: Set project inherit flag. 7838 */ 7839 static int 7840 zfs_do_project(int argc, char **argv) 7841 { 7842 zfs_project_control_t zpc = { 7843 .zpc_expected_projid = ZFS_INVALID_PROJID, 7844 .zpc_op = ZFS_PROJECT_OP_DEFAULT, 7845 .zpc_dironly = B_FALSE, 7846 .zpc_keep_projid = B_FALSE, 7847 .zpc_newline = B_TRUE, 7848 .zpc_recursive = B_FALSE, 7849 .zpc_set_flag = B_FALSE, 7850 }; 7851 int ret = 0, c; 7852 7853 if (argc < 2) 7854 usage(B_FALSE); 7855 7856 while ((c = getopt(argc, argv, "0Ccdkp:rs")) != -1) { 7857 switch (c) { 7858 case '0': 7859 zpc.zpc_newline = B_FALSE; 7860 break; 7861 case 'C': 7862 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 7863 (void) fprintf(stderr, gettext("cannot " 7864 "specify '-C' '-c' '-s' together\n")); 7865 usage(B_FALSE); 7866 } 7867 7868 zpc.zpc_op = ZFS_PROJECT_OP_CLEAR; 7869 break; 7870 case 'c': 7871 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 7872 (void) fprintf(stderr, gettext("cannot " 7873 "specify '-C' '-c' '-s' together\n")); 7874 usage(B_FALSE); 7875 } 7876 7877 zpc.zpc_op = ZFS_PROJECT_OP_CHECK; 7878 break; 7879 case 'd': 7880 zpc.zpc_dironly = B_TRUE; 7881 /* overwrite "-r" option */ 7882 zpc.zpc_recursive = B_FALSE; 7883 break; 7884 case 'k': 7885 zpc.zpc_keep_projid = B_TRUE; 7886 break; 7887 case 'p': { 7888 char *endptr; 7889 7890 errno = 0; 7891 zpc.zpc_expected_projid = strtoull(optarg, &endptr, 0); 7892 if (errno != 0 || *endptr != '\0') { 7893 (void) fprintf(stderr, 7894 gettext("project ID must be less than " 7895 "%u\n"), UINT32_MAX); 7896 usage(B_FALSE); 7897 } 7898 if (zpc.zpc_expected_projid >= UINT32_MAX) { 7899 (void) fprintf(stderr, 7900 gettext("invalid project ID\n")); 7901 usage(B_FALSE); 7902 } 7903 break; 7904 } 7905 case 'r': 7906 zpc.zpc_recursive = B_TRUE; 7907 /* overwrite "-d" option */ 7908 zpc.zpc_dironly = B_FALSE; 7909 break; 7910 case 's': 7911 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 7912 (void) fprintf(stderr, gettext("cannot " 7913 "specify '-C' '-c' '-s' together\n")); 7914 usage(B_FALSE); 7915 } 7916 7917 zpc.zpc_set_flag = B_TRUE; 7918 zpc.zpc_op = ZFS_PROJECT_OP_SET; 7919 break; 7920 default: 7921 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7922 optopt); 7923 usage(B_FALSE); 7924 } 7925 } 7926 7927 if (zpc.zpc_op == ZFS_PROJECT_OP_DEFAULT) { 7928 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) 7929 zpc.zpc_op = ZFS_PROJECT_OP_SET; 7930 else 7931 zpc.zpc_op = ZFS_PROJECT_OP_LIST; 7932 } 7933 7934 switch (zpc.zpc_op) { 7935 case ZFS_PROJECT_OP_LIST: 7936 if (zpc.zpc_keep_projid) { 7937 (void) fprintf(stderr, 7938 gettext("'-k' is only valid together with '-C'\n")); 7939 usage(B_FALSE); 7940 } 7941 if (!zpc.zpc_newline) { 7942 (void) fprintf(stderr, 7943 gettext("'-0' is only valid together with '-c'\n")); 7944 usage(B_FALSE); 7945 } 7946 break; 7947 case ZFS_PROJECT_OP_CHECK: 7948 if (zpc.zpc_keep_projid) { 7949 (void) fprintf(stderr, 7950 gettext("'-k' is only valid together with '-C'\n")); 7951 usage(B_FALSE); 7952 } 7953 break; 7954 case ZFS_PROJECT_OP_CLEAR: 7955 if (zpc.zpc_dironly) { 7956 (void) fprintf(stderr, 7957 gettext("'-d' is useless together with '-C'\n")); 7958 usage(B_FALSE); 7959 } 7960 if (!zpc.zpc_newline) { 7961 (void) fprintf(stderr, 7962 gettext("'-0' is only valid together with '-c'\n")); 7963 usage(B_FALSE); 7964 } 7965 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) { 7966 (void) fprintf(stderr, 7967 gettext("'-p' is useless together with '-C'\n")); 7968 usage(B_FALSE); 7969 } 7970 break; 7971 case ZFS_PROJECT_OP_SET: 7972 if (zpc.zpc_dironly) { 7973 (void) fprintf(stderr, 7974 gettext("'-d' is useless for set project ID and/or " 7975 "inherit flag\n")); 7976 usage(B_FALSE); 7977 } 7978 if (zpc.zpc_keep_projid) { 7979 (void) fprintf(stderr, 7980 gettext("'-k' is only valid together with '-C'\n")); 7981 usage(B_FALSE); 7982 } 7983 if (!zpc.zpc_newline) { 7984 (void) fprintf(stderr, 7985 gettext("'-0' is only valid together with '-c'\n")); 7986 usage(B_FALSE); 7987 } 7988 break; 7989 default: 7990 ASSERT(0); 7991 break; 7992 } 7993 7994 argv += optind; 7995 argc -= optind; 7996 if (argc == 0) { 7997 (void) fprintf(stderr, 7998 gettext("missing file or directory target(s)\n")); 7999 usage(B_FALSE); 8000 } 8001 8002 for (int i = 0; i < argc; i++) { 8003 int err; 8004 8005 err = zfs_project_handle(argv[i], &zpc); 8006 if (err && !ret) 8007 ret = err; 8008 } 8009 8010 return (ret); 8011 } 8012 8013 int 8014 main(int argc, char **argv) 8015 { 8016 int ret = 0; 8017 int i; 8018 char *progname; 8019 char *cmdname; 8020 8021 (void) setlocale(LC_ALL, ""); 8022 (void) textdomain(TEXT_DOMAIN); 8023 8024 opterr = 0; 8025 8026 if ((g_zfs = libzfs_init()) == NULL) { 8027 (void) fprintf(stderr, gettext("internal error: failed to " 8028 "initialize ZFS library\n")); 8029 return (1); 8030 } 8031 8032 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 8033 8034 libzfs_print_on_error(g_zfs, B_TRUE); 8035 8036 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 8037 (void) fprintf(stderr, gettext("internal error: unable to " 8038 "open %s\n"), MNTTAB); 8039 return (1); 8040 } 8041 8042 /* 8043 * This command also doubles as the /etc/fs mount and unmount program. 8044 * Determine if we should take this behavior based on argv[0]. 8045 */ 8046 progname = basename(argv[0]); 8047 if (strcmp(progname, "mount") == 0) { 8048 ret = manual_mount(argc, argv); 8049 } else if (strcmp(progname, "umount") == 0) { 8050 ret = manual_unmount(argc, argv); 8051 } else { 8052 /* 8053 * Make sure the user has specified some command. 8054 */ 8055 if (argc < 2) { 8056 (void) fprintf(stderr, gettext("missing command\n")); 8057 usage(B_FALSE); 8058 } 8059 8060 cmdname = argv[1]; 8061 8062 /* 8063 * The 'umount' command is an alias for 'unmount' 8064 */ 8065 if (strcmp(cmdname, "umount") == 0) 8066 cmdname = "unmount"; 8067 8068 /* 8069 * The 'recv' command is an alias for 'receive' 8070 */ 8071 if (strcmp(cmdname, "recv") == 0) 8072 cmdname = "receive"; 8073 8074 /* 8075 * The 'snap' command is an alias for 'snapshot' 8076 */ 8077 if (strcmp(cmdname, "snap") == 0) 8078 cmdname = "snapshot"; 8079 8080 /* 8081 * Special case '-?' 8082 */ 8083 if (strcmp(cmdname, "-?") == 0) 8084 usage(B_TRUE); 8085 8086 /* 8087 * Run the appropriate command. 8088 */ 8089 libzfs_mnttab_cache(g_zfs, B_TRUE); 8090 if (find_command_idx(cmdname, &i) == 0) { 8091 current_command = &command_table[i]; 8092 ret = command_table[i].func(argc - 1, argv + 1); 8093 } else if (strchr(cmdname, '=') != NULL) { 8094 verify(find_command_idx("set", &i) == 0); 8095 current_command = &command_table[i]; 8096 ret = command_table[i].func(argc, argv); 8097 } else { 8098 (void) fprintf(stderr, gettext("unrecognized " 8099 "command '%s'\n"), cmdname); 8100 usage(B_FALSE); 8101 } 8102 libzfs_mnttab_cache(g_zfs, B_FALSE); 8103 } 8104 8105 (void) fclose(mnttab_file); 8106 8107 if (ret == 0 && log_history) 8108 (void) zpool_log_history(g_zfs, history_str); 8109 8110 libzfs_fini(g_zfs); 8111 8112 /* 8113 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 8114 * for the purposes of running ::findleaks. 8115 */ 8116 if (getenv("ZFS_ABORT") != NULL) { 8117 (void) printf("dumping core by request\n"); 8118 abort(); 8119 } 8120 8121 return (ret); 8122 } 8123