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 <libzutil.h> 72 #include <libuutil.h> 73 #include <aclutils.h> 74 #include <directory.h> 75 #include <idmap.h> 76 #include <libshare.h> 77 78 #include "zfs_iter.h" 79 #include "zfs_util.h" 80 #include "zfs_comutil.h" 81 #include "zfs_projectutil.h" 82 83 libzfs_handle_t *g_zfs; 84 85 static FILE *mnttab_file; 86 static char history_str[HIS_MAX_RECORD_LEN]; 87 static boolean_t log_history = B_TRUE; 88 89 static int zfs_do_clone(int argc, char **argv); 90 static int zfs_do_create(int argc, char **argv); 91 static int zfs_do_destroy(int argc, char **argv); 92 static int zfs_do_get(int argc, char **argv); 93 static int zfs_do_inherit(int argc, char **argv); 94 static int zfs_do_list(int argc, char **argv); 95 static int zfs_do_mount(int argc, char **argv); 96 static int zfs_do_rename(int argc, char **argv); 97 static int zfs_do_rollback(int argc, char **argv); 98 static int zfs_do_set(int argc, char **argv); 99 static int zfs_do_upgrade(int argc, char **argv); 100 static int zfs_do_snapshot(int argc, char **argv); 101 static int zfs_do_unmount(int argc, char **argv); 102 static int zfs_do_share(int argc, char **argv); 103 static int zfs_do_unshare(int argc, char **argv); 104 static int zfs_do_send(int argc, char **argv); 105 static int zfs_do_receive(int argc, char **argv); 106 static int zfs_do_promote(int argc, char **argv); 107 static int zfs_do_userspace(int argc, char **argv); 108 static int zfs_do_allow(int argc, char **argv); 109 static int zfs_do_unallow(int argc, char **argv); 110 static int zfs_do_hold(int argc, char **argv); 111 static int zfs_do_holds(int argc, char **argv); 112 static int zfs_do_release(int argc, char **argv); 113 static int zfs_do_diff(int argc, char **argv); 114 static int zfs_do_bookmark(int argc, char **argv); 115 static int zfs_do_remap(int argc, char **argv); 116 static int zfs_do_channel_program(int argc, char **argv); 117 static int zfs_do_load_key(int argc, char **argv); 118 static int zfs_do_unload_key(int argc, char **argv); 119 static int zfs_do_change_key(int argc, char **argv); 120 static int zfs_do_project(int argc, char **argv); 121 122 /* 123 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 124 */ 125 126 #ifdef DEBUG 127 const char * 128 _umem_debug_init(void) 129 { 130 return ("default,verbose"); /* $UMEM_DEBUG setting */ 131 } 132 133 const char * 134 _umem_logging_init(void) 135 { 136 return ("fail,contents"); /* $UMEM_LOGGING setting */ 137 } 138 #endif 139 140 typedef enum { 141 HELP_CLONE, 142 HELP_CREATE, 143 HELP_DESTROY, 144 HELP_GET, 145 HELP_INHERIT, 146 HELP_UPGRADE, 147 HELP_LIST, 148 HELP_MOUNT, 149 HELP_PROMOTE, 150 HELP_RECEIVE, 151 HELP_RENAME, 152 HELP_ROLLBACK, 153 HELP_SEND, 154 HELP_SET, 155 HELP_SHARE, 156 HELP_SNAPSHOT, 157 HELP_UNMOUNT, 158 HELP_UNSHARE, 159 HELP_ALLOW, 160 HELP_UNALLOW, 161 HELP_USERSPACE, 162 HELP_GROUPSPACE, 163 HELP_PROJECTSPACE, 164 HELP_PROJECT, 165 HELP_HOLD, 166 HELP_HOLDS, 167 HELP_RELEASE, 168 HELP_DIFF, 169 HELP_REMAP, 170 HELP_BOOKMARK, 171 HELP_CHANNEL_PROGRAM, 172 HELP_LOAD_KEY, 173 HELP_UNLOAD_KEY, 174 HELP_CHANGE_KEY, 175 } zfs_help_t; 176 177 typedef struct zfs_command { 178 const char *name; 179 int (*func)(int argc, char **argv); 180 zfs_help_t usage; 181 } zfs_command_t; 182 183 /* 184 * Master command table. Each ZFS command has a name, associated function, and 185 * usage message. The usage messages need to be internationalized, so we have 186 * to have a function to return the usage message based on a command index. 187 * 188 * These commands are organized according to how they are displayed in the usage 189 * message. An empty command (one with a NULL name) indicates an empty line in 190 * the generic usage message. 191 */ 192 static zfs_command_t command_table[] = { 193 { "create", zfs_do_create, HELP_CREATE }, 194 { "destroy", zfs_do_destroy, HELP_DESTROY }, 195 { NULL }, 196 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 197 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 198 { "clone", zfs_do_clone, HELP_CLONE }, 199 { "promote", zfs_do_promote, HELP_PROMOTE }, 200 { "rename", zfs_do_rename, HELP_RENAME }, 201 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 202 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 203 { NULL }, 204 { "list", zfs_do_list, HELP_LIST }, 205 { NULL }, 206 { "set", zfs_do_set, HELP_SET }, 207 { "get", zfs_do_get, HELP_GET }, 208 { "inherit", zfs_do_inherit, HELP_INHERIT }, 209 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 210 { NULL }, 211 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 212 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 213 { "projectspace", zfs_do_userspace, HELP_PROJECTSPACE }, 214 { NULL }, 215 { "project", zfs_do_project, HELP_PROJECT }, 216 { NULL }, 217 { "mount", zfs_do_mount, HELP_MOUNT }, 218 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 219 { "share", zfs_do_share, HELP_SHARE }, 220 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 221 { NULL }, 222 { "send", zfs_do_send, HELP_SEND }, 223 { "receive", zfs_do_receive, HELP_RECEIVE }, 224 { NULL }, 225 { "allow", zfs_do_allow, HELP_ALLOW }, 226 { NULL }, 227 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 228 { NULL }, 229 { "hold", zfs_do_hold, HELP_HOLD }, 230 { "holds", zfs_do_holds, HELP_HOLDS }, 231 { "release", zfs_do_release, HELP_RELEASE }, 232 { "diff", zfs_do_diff, HELP_DIFF }, 233 { "remap", zfs_do_remap, HELP_REMAP }, 234 { "load-key", zfs_do_load_key, HELP_LOAD_KEY }, 235 { "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY }, 236 { "change-key", zfs_do_change_key, HELP_CHANGE_KEY }, 237 }; 238 239 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 240 241 zfs_command_t *current_command; 242 243 static const char * 244 get_usage(zfs_help_t idx) 245 { 246 switch (idx) { 247 case HELP_CLONE: 248 return (gettext("\tclone [-p] [-o property=value] ... " 249 "<snapshot> <filesystem|volume>\n")); 250 case HELP_CREATE: 251 return (gettext("\tcreate [-p] [-o property=value] ... " 252 "<filesystem>\n" 253 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 254 "-V <size> <volume>\n")); 255 case HELP_DESTROY: 256 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 257 "\tdestroy [-dnpRrv] " 258 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 259 "\tdestroy <filesystem|volume>#<bookmark>\n")); 260 case HELP_GET: 261 return (gettext("\tget [-rHp] [-d max] " 262 "[-o \"all\" | field[,...]]\n" 263 "\t [-t type[,...]] [-s source[,...]]\n" 264 "\t <\"all\" | property[,...]> " 265 "[filesystem|volume|snapshot|bookmark] ...\n")); 266 case HELP_INHERIT: 267 return (gettext("\tinherit [-rS] <property> " 268 "<filesystem|volume|snapshot> ...\n")); 269 case HELP_UPGRADE: 270 return (gettext("\tupgrade [-v]\n" 271 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 272 case HELP_LIST: 273 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 274 "[-s property]...\n\t [-S property]... [-t type[,...]] " 275 "[filesystem|volume|snapshot] ...\n")); 276 case HELP_MOUNT: 277 return (gettext("\tmount\n" 278 "\tmount [-lvO] [-o opts] <-a | filesystem>\n")); 279 case HELP_PROMOTE: 280 return (gettext("\tpromote <clone-filesystem>\n")); 281 case HELP_RECEIVE: 282 return (gettext("\treceive [-vnsFhu] " 283 "[-o <property>=<value>] ... [-x <property>] ...\n" 284 "\t <filesystem|volume|snapshot>\n" 285 "\treceive [-vnsFhu] [-o <property>=<value>] ... " 286 "[-x <property>] ... \n" 287 "\t [-d | -e] <filesystem>\n" 288 "\treceive -A <filesystem|volume>\n")); 289 case HELP_RENAME: 290 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 291 "<filesystem|volume|snapshot>\n" 292 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 293 "\trename -r <snapshot> <snapshot>\n")); 294 case HELP_ROLLBACK: 295 return (gettext("\trollback [-rRf] <snapshot>\n")); 296 case HELP_SEND: 297 return (gettext("\tsend [-DnPpRvLecwhb] [-[iI] snapshot] " 298 "<snapshot>\n" 299 "\tsend [-nvPLecw] [-i snapshot|bookmark] " 300 "<filesystem|volume|snapshot>\n" 301 "\tsend [-nvPe] -t <receive_resume_token>\n")); 302 case HELP_SET: 303 return (gettext("\tset <property=value> ... " 304 "<filesystem|volume|snapshot> ...\n")); 305 case HELP_SHARE: 306 return (gettext("\tshare [-l] <-a | filesystem>\n")); 307 case HELP_SNAPSHOT: 308 return (gettext("\tsnapshot [-r] [-o property=value] ... " 309 "<filesystem|volume>@<snap> ...\n")); 310 case HELP_UNMOUNT: 311 return (gettext("\tunmount [-f] " 312 "<-a | filesystem|mountpoint>\n")); 313 case HELP_UNSHARE: 314 return (gettext("\tunshare " 315 "<-a | filesystem|mountpoint>\n")); 316 case HELP_ALLOW: 317 return (gettext("\tallow <filesystem|volume>\n" 318 "\tallow [-ldug] " 319 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 320 "\t <filesystem|volume>\n" 321 "\tallow [-ld] -e <perm|@setname>[,...] " 322 "<filesystem|volume>\n" 323 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 324 "\tallow -s @setname <perm|@setname>[,...] " 325 "<filesystem|volume>\n")); 326 case HELP_UNALLOW: 327 return (gettext("\tunallow [-rldug] " 328 "<\"everyone\"|user|group>[,...]\n" 329 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 330 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 331 "<filesystem|volume>\n" 332 "\tunallow [-r] -c [<perm|@setname>[,...]] " 333 "<filesystem|volume>\n" 334 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 335 "<filesystem|volume>\n")); 336 case HELP_USERSPACE: 337 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 338 "[-s field] ...\n" 339 "\t [-S field] ... [-t type[,...]] " 340 "<filesystem|snapshot>\n")); 341 case HELP_GROUPSPACE: 342 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 343 "[-s field] ...\n" 344 "\t [-S field] ... [-t type[,...]] " 345 "<filesystem|snapshot>\n")); 346 case HELP_PROJECTSPACE: 347 return (gettext("\tprojectspace [-Hp] [-o field[,...]] " 348 "[-s field] ... \n" 349 "\t [-S field] ... <filesystem|snapshot>\n")); 350 case HELP_PROJECT: 351 return (gettext("\tproject [-d|-r] <directory|file ...>\n" 352 "\tproject -c [-0] [-d|-r] [-p id] <directory|file ...>\n" 353 "\tproject -C [-k] [-r] <directory ...>\n" 354 "\tproject [-p id] [-r] [-s] <directory ...>\n")); 355 case HELP_HOLD: 356 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 357 case HELP_HOLDS: 358 return (gettext("\tholds [-r] <snapshot> ...\n")); 359 case HELP_RELEASE: 360 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 361 case HELP_DIFF: 362 return (gettext("\tdiff [-FHt] <snapshot> " 363 "[snapshot|filesystem]\n")); 364 case HELP_REMAP: 365 return (gettext("\tremap <filesystem | volume>\n")); 366 case HELP_BOOKMARK: 367 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 368 case HELP_CHANNEL_PROGRAM: 369 return (gettext("\tprogram [-jn] [-t <instruction limit>] " 370 "[-m <memory limit (b)>] <pool> <program file> " 371 "[lua args...]\n")); 372 case HELP_LOAD_KEY: 373 return (gettext("\tload-key [-rn] [-L <keylocation>] " 374 "<-a | filesystem|volume>\n")); 375 case HELP_UNLOAD_KEY: 376 return (gettext("\tunload-key [-r] " 377 "<-a | filesystem|volume>\n")); 378 case HELP_CHANGE_KEY: 379 return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n" 380 "\t [-o keylocation=<value>] [-o pbkfd2iters=<value>]\n" 381 "\t <filesystem|volume>\n" 382 "\tchange-key -i [-l] <filesystem|volume>\n")); 383 } 384 385 abort(); 386 /* NOTREACHED */ 387 } 388 389 void 390 nomem(void) 391 { 392 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 393 exit(1); 394 } 395 396 /* 397 * Utility function to guarantee malloc() success. 398 */ 399 400 void * 401 safe_malloc(size_t size) 402 { 403 void *data; 404 405 if ((data = calloc(1, size)) == NULL) 406 nomem(); 407 408 return (data); 409 } 410 411 void * 412 safe_realloc(void *data, size_t size) 413 { 414 void *newp; 415 if ((newp = realloc(data, size)) == NULL) { 416 free(data); 417 nomem(); 418 } 419 420 return (newp); 421 } 422 423 static char * 424 safe_strdup(char *str) 425 { 426 char *dupstr = strdup(str); 427 428 if (dupstr == NULL) 429 nomem(); 430 431 return (dupstr); 432 } 433 434 /* 435 * Callback routine that will print out information for each of 436 * the properties. 437 */ 438 static int 439 usage_prop_cb(int prop, void *cb) 440 { 441 FILE *fp = cb; 442 443 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 444 445 if (zfs_prop_readonly(prop)) 446 (void) fprintf(fp, " NO "); 447 else 448 (void) fprintf(fp, "YES "); 449 450 if (zfs_prop_inheritable(prop)) 451 (void) fprintf(fp, " YES "); 452 else 453 (void) fprintf(fp, " NO "); 454 455 if (zfs_prop_values(prop) == NULL) 456 (void) fprintf(fp, "-\n"); 457 else 458 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 459 460 return (ZPROP_CONT); 461 } 462 463 /* 464 * Display usage message. If we're inside a command, display only the usage for 465 * that command. Otherwise, iterate over the entire command table and display 466 * a complete usage message. 467 */ 468 static void 469 usage(boolean_t requested) 470 { 471 int i; 472 boolean_t show_properties = B_FALSE; 473 FILE *fp = requested ? stdout : stderr; 474 475 if (current_command == NULL) { 476 477 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 478 (void) fprintf(fp, 479 gettext("where 'command' is one of the following:\n\n")); 480 481 for (i = 0; i < NCOMMAND; i++) { 482 if (command_table[i].name == NULL) 483 (void) fprintf(fp, "\n"); 484 else 485 (void) fprintf(fp, "%s", 486 get_usage(command_table[i].usage)); 487 } 488 489 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 490 "pool/[dataset/]*dataset[@name]\n")); 491 } else { 492 (void) fprintf(fp, gettext("usage:\n")); 493 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 494 } 495 496 if (current_command != NULL && 497 (strcmp(current_command->name, "set") == 0 || 498 strcmp(current_command->name, "get") == 0 || 499 strcmp(current_command->name, "inherit") == 0 || 500 strcmp(current_command->name, "list") == 0)) 501 show_properties = B_TRUE; 502 503 if (show_properties) { 504 (void) fprintf(fp, 505 gettext("\nThe following properties are supported:\n")); 506 507 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 508 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 509 510 /* Iterate over all properties */ 511 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 512 ZFS_TYPE_DATASET); 513 514 (void) fprintf(fp, "\t%-15s ", "userused@..."); 515 (void) fprintf(fp, " NO NO <size>\n"); 516 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 517 (void) fprintf(fp, " NO NO <size>\n"); 518 (void) fprintf(fp, "\t%-15s ", "projectused@..."); 519 (void) fprintf(fp, " NO NO <size>\n"); 520 (void) fprintf(fp, "\t%-15s ", "userobjused@..."); 521 (void) fprintf(fp, " NO NO <size>\n"); 522 (void) fprintf(fp, "\t%-15s ", "groupobjused@..."); 523 (void) fprintf(fp, " NO NO <size>\n"); 524 (void) fprintf(fp, "\t%-15s ", "projectobjused@..."); 525 (void) fprintf(fp, " NO NO <size>\n"); 526 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 527 (void) fprintf(fp, "YES NO <size> | none\n"); 528 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 529 (void) fprintf(fp, "YES NO <size> | none\n"); 530 (void) fprintf(fp, "\t%-15s ", "projectquota@..."); 531 (void) fprintf(fp, "YES NO <size> | none\n"); 532 (void) fprintf(fp, "\t%-15s ", "userobjquota@..."); 533 (void) fprintf(fp, "YES NO <size> | none\n"); 534 (void) fprintf(fp, "\t%-15s ", "groupobjquota@..."); 535 (void) fprintf(fp, "YES NO <size> | none\n"); 536 (void) fprintf(fp, "\t%-15s ", "projectobjquota@..."); 537 (void) fprintf(fp, "YES NO <size> | none\n"); 538 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 539 (void) fprintf(fp, " NO NO <size>\n"); 540 541 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 542 "with standard units such as K, M, G, etc.\n")); 543 (void) fprintf(fp, gettext("\nUser-defined properties can " 544 "be specified by using a name containing a colon (:).\n")); 545 (void) fprintf(fp, gettext("\nThe {user|group|project}" 546 "[obj]{used|quota}@ properties must be appended with\n" 547 "a user|group|project specifier of one of these forms:\n" 548 " POSIX name (eg: \"matt\")\n" 549 " POSIX id (eg: \"126829\")\n" 550 " SMB name@domain (eg: \"matt@sun\")\n" 551 " SMB SID (eg: \"S-1-234-567-89\")\n")); 552 } else { 553 (void) fprintf(fp, 554 gettext("\nFor the property list, run: %s\n"), 555 "zfs set|get"); 556 (void) fprintf(fp, 557 gettext("\nFor the delegated permission list, run: %s\n"), 558 "zfs allow|unallow"); 559 } 560 561 /* 562 * See comments at end of main(). 563 */ 564 if (getenv("ZFS_ABORT") != NULL) { 565 (void) printf("dumping core by request\n"); 566 abort(); 567 } 568 569 exit(requested ? 0 : 2); 570 } 571 572 /* 573 * Take a property=value argument string and add it to the given nvlist. 574 * Modifies the argument inplace. 575 */ 576 static boolean_t 577 parseprop(nvlist_t *props, char *propname) 578 { 579 char *propval; 580 581 if ((propval = strchr(propname, '=')) == NULL) { 582 (void) fprintf(stderr, gettext("missing " 583 "'=' for property=value argument\n")); 584 return (B_FALSE); 585 } 586 *propval = '\0'; 587 propval++; 588 if (nvlist_exists(props, propname)) { 589 (void) fprintf(stderr, gettext("property '%s' " 590 "specified multiple times\n"), propname); 591 return (B_FALSE); 592 } 593 if (nvlist_add_string(props, propname, propval) != 0) 594 nomem(); 595 return (B_TRUE); 596 } 597 598 /* 599 * Take a property name argument and add it to the given nvlist. 600 * Modifies the argument inplace. 601 */ 602 static boolean_t 603 parsepropname(nvlist_t *props, char *propname) 604 { 605 if (strchr(propname, '=') != NULL) { 606 (void) fprintf(stderr, gettext("invalid character " 607 "'=' in property argument\n")); 608 return (B_FALSE); 609 } 610 if (nvlist_exists(props, propname)) { 611 (void) fprintf(stderr, gettext("property '%s' " 612 "specified multiple times\n"), propname); 613 return (B_FALSE); 614 } 615 if (nvlist_add_boolean(props, propname) != 0) 616 nomem(); 617 return (B_TRUE); 618 } 619 620 static int 621 parse_depth(char *opt, int *flags) 622 { 623 char *tmp; 624 int depth; 625 626 depth = (int)strtol(opt, &tmp, 0); 627 if (*tmp) { 628 (void) fprintf(stderr, 629 gettext("%s is not an integer\n"), optarg); 630 usage(B_FALSE); 631 } 632 if (depth < 0) { 633 (void) fprintf(stderr, 634 gettext("Depth can not be negative.\n")); 635 usage(B_FALSE); 636 } 637 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 638 return (depth); 639 } 640 641 #define PROGRESS_DELAY 2 /* seconds */ 642 643 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"; 644 static time_t pt_begin; 645 static char *pt_header = NULL; 646 static boolean_t pt_shown; 647 648 static void 649 start_progress_timer(void) 650 { 651 pt_begin = time(NULL) + PROGRESS_DELAY; 652 pt_shown = B_FALSE; 653 } 654 655 static void 656 set_progress_header(char *header) 657 { 658 assert(pt_header == NULL); 659 pt_header = safe_strdup(header); 660 if (pt_shown) { 661 (void) printf("%s: ", header); 662 (void) fflush(stdout); 663 } 664 } 665 666 static void 667 update_progress(char *update) 668 { 669 if (!pt_shown && time(NULL) > pt_begin) { 670 int len = strlen(update); 671 672 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 673 pt_reverse); 674 (void) fflush(stdout); 675 pt_shown = B_TRUE; 676 } else if (pt_shown) { 677 int len = strlen(update); 678 679 (void) printf("%s%*.*s", update, len, len, pt_reverse); 680 (void) fflush(stdout); 681 } 682 } 683 684 static void 685 finish_progress(char *done) 686 { 687 if (pt_shown) { 688 (void) printf("%s\n", done); 689 (void) fflush(stdout); 690 } 691 free(pt_header); 692 pt_header = NULL; 693 } 694 695 /* 696 * Check if the dataset is mountable and should be automatically mounted. 697 */ 698 static boolean_t 699 should_auto_mount(zfs_handle_t *zhp) 700 { 701 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 702 return (B_FALSE); 703 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 704 } 705 706 /* 707 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 708 * 709 * Given an existing dataset, create a writable copy whose initial contents 710 * are the same as the source. The newly created dataset maintains a 711 * dependency on the original; the original cannot be destroyed so long as 712 * the clone exists. 713 * 714 * The '-p' flag creates all the non-existing ancestors of the target first. 715 */ 716 static int 717 zfs_do_clone(int argc, char **argv) 718 { 719 zfs_handle_t *zhp = NULL; 720 boolean_t parents = B_FALSE; 721 nvlist_t *props; 722 int ret = 0; 723 int c; 724 725 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 726 nomem(); 727 728 /* check options */ 729 while ((c = getopt(argc, argv, "o:p")) != -1) { 730 switch (c) { 731 case 'o': 732 if (!parseprop(props, optarg)) { 733 nvlist_free(props); 734 return (1); 735 } 736 break; 737 case 'p': 738 parents = B_TRUE; 739 break; 740 case '?': 741 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 742 optopt); 743 goto usage; 744 } 745 } 746 747 argc -= optind; 748 argv += optind; 749 750 /* check number of arguments */ 751 if (argc < 1) { 752 (void) fprintf(stderr, gettext("missing source dataset " 753 "argument\n")); 754 goto usage; 755 } 756 if (argc < 2) { 757 (void) fprintf(stderr, gettext("missing target dataset " 758 "argument\n")); 759 goto usage; 760 } 761 if (argc > 2) { 762 (void) fprintf(stderr, gettext("too many arguments\n")); 763 goto usage; 764 } 765 766 /* open the source dataset */ 767 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 768 return (1); 769 770 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 771 ZFS_TYPE_VOLUME)) { 772 /* 773 * Now create the ancestors of the target dataset. If the 774 * target already exists and '-p' option was used we should not 775 * complain. 776 */ 777 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 778 ZFS_TYPE_VOLUME)) 779 return (0); 780 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 781 return (1); 782 } 783 784 /* pass to libzfs */ 785 ret = zfs_clone(zhp, argv[1], props); 786 787 /* create the mountpoint if necessary */ 788 if (ret == 0) { 789 zfs_handle_t *clone; 790 791 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 792 if (clone != NULL) { 793 /* 794 * If the user doesn't want the dataset 795 * automatically mounted, then skip the mount/share 796 * step. 797 */ 798 if (should_auto_mount(clone)) { 799 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 800 (void) fprintf(stderr, gettext("clone " 801 "successfully created, " 802 "but not mounted\n")); 803 } else if ((ret = zfs_share(clone)) != 0) { 804 (void) fprintf(stderr, gettext("clone " 805 "successfully created, " 806 "but not shared\n")); 807 } 808 } 809 zfs_close(clone); 810 } 811 } 812 813 zfs_close(zhp); 814 nvlist_free(props); 815 816 return (!!ret); 817 818 usage: 819 if (zhp) 820 zfs_close(zhp); 821 nvlist_free(props); 822 usage(B_FALSE); 823 return (-1); 824 } 825 826 /* 827 * zfs create [-p] [-o prop=value] ... fs 828 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 829 * 830 * Create a new dataset. This command can be used to create filesystems 831 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 832 * For volumes, the user must specify a size to be used. 833 * 834 * The '-s' flag applies only to volumes, and indicates that we should not try 835 * to set the reservation for this volume. By default we set a reservation 836 * equal to the size for any volume. For pools with SPA_VERSION >= 837 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 838 * 839 * The '-p' flag creates all the non-existing ancestors of the target first. 840 */ 841 static int 842 zfs_do_create(int argc, char **argv) 843 { 844 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 845 zfs_handle_t *zhp = NULL; 846 uint64_t volsize = 0; 847 int c; 848 boolean_t noreserve = B_FALSE; 849 boolean_t bflag = B_FALSE; 850 boolean_t parents = B_FALSE; 851 int ret = 1; 852 nvlist_t *props; 853 uint64_t intval; 854 855 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 856 nomem(); 857 858 /* check options */ 859 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 860 switch (c) { 861 case 'V': 862 type = ZFS_TYPE_VOLUME; 863 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 864 (void) fprintf(stderr, gettext("bad volume " 865 "size '%s': %s\n"), optarg, 866 libzfs_error_description(g_zfs)); 867 goto error; 868 } 869 870 if (nvlist_add_uint64(props, 871 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 872 nomem(); 873 volsize = intval; 874 break; 875 case 'p': 876 parents = B_TRUE; 877 break; 878 case 'b': 879 bflag = B_TRUE; 880 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 881 (void) fprintf(stderr, gettext("bad volume " 882 "block size '%s': %s\n"), optarg, 883 libzfs_error_description(g_zfs)); 884 goto error; 885 } 886 887 if (nvlist_add_uint64(props, 888 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 889 intval) != 0) 890 nomem(); 891 break; 892 case 'o': 893 if (!parseprop(props, optarg)) 894 goto error; 895 break; 896 case 's': 897 noreserve = B_TRUE; 898 break; 899 case ':': 900 (void) fprintf(stderr, gettext("missing size " 901 "argument\n")); 902 goto badusage; 903 case '?': 904 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 905 optopt); 906 goto badusage; 907 } 908 } 909 910 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 911 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 912 "used when creating a volume\n")); 913 goto badusage; 914 } 915 916 argc -= optind; 917 argv += optind; 918 919 /* check number of arguments */ 920 if (argc == 0) { 921 (void) fprintf(stderr, gettext("missing %s argument\n"), 922 zfs_type_to_name(type)); 923 goto badusage; 924 } 925 if (argc > 1) { 926 (void) fprintf(stderr, gettext("too many arguments\n")); 927 goto badusage; 928 } 929 930 if (type == ZFS_TYPE_VOLUME && !noreserve) { 931 zpool_handle_t *zpool_handle; 932 nvlist_t *real_props = NULL; 933 uint64_t spa_version; 934 char *p; 935 zfs_prop_t resv_prop; 936 char *strval; 937 char msg[1024]; 938 939 if ((p = strchr(argv[0], '/')) != NULL) 940 *p = '\0'; 941 zpool_handle = zpool_open(g_zfs, argv[0]); 942 if (p != NULL) 943 *p = '/'; 944 if (zpool_handle == NULL) 945 goto error; 946 spa_version = zpool_get_prop_int(zpool_handle, 947 ZPOOL_PROP_VERSION, NULL); 948 if (spa_version >= SPA_VERSION_REFRESERVATION) 949 resv_prop = ZFS_PROP_REFRESERVATION; 950 else 951 resv_prop = ZFS_PROP_RESERVATION; 952 953 (void) snprintf(msg, sizeof (msg), 954 gettext("cannot create '%s'"), argv[0]); 955 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 956 props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) { 957 zpool_close(zpool_handle); 958 goto error; 959 } 960 961 volsize = zvol_volsize_to_reservation(zpool_handle, volsize, 962 real_props); 963 nvlist_free(real_props); 964 zpool_close(zpool_handle); 965 966 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 967 &strval) != 0) { 968 if (nvlist_add_uint64(props, 969 zfs_prop_to_name(resv_prop), volsize) != 0) { 970 nvlist_free(props); 971 nomem(); 972 } 973 } 974 } 975 976 if (parents && zfs_name_valid(argv[0], type)) { 977 /* 978 * Now create the ancestors of target dataset. If the target 979 * already exists and '-p' option was used we should not 980 * complain. 981 */ 982 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 983 ret = 0; 984 goto error; 985 } 986 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 987 goto error; 988 } 989 990 /* pass to libzfs */ 991 if (zfs_create(g_zfs, argv[0], type, props) != 0) 992 goto error; 993 994 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 995 goto error; 996 997 ret = 0; 998 999 /* 1000 * Mount and/or share the new filesystem as appropriate. We provide a 1001 * verbose error message to let the user know that their filesystem was 1002 * in fact created, even if we failed to mount or share it. 1003 * If the user doesn't want the dataset automatically mounted, 1004 * then skip the mount/share step altogether. 1005 */ 1006 if (should_auto_mount(zhp)) { 1007 if (zfs_mount(zhp, NULL, 0) != 0) { 1008 (void) fprintf(stderr, gettext("filesystem " 1009 "successfully created, but not mounted\n")); 1010 ret = 1; 1011 } else if (zfs_share(zhp) != 0) { 1012 (void) fprintf(stderr, gettext("filesystem " 1013 "successfully created, but not shared\n")); 1014 ret = 1; 1015 } 1016 } 1017 1018 error: 1019 if (zhp) 1020 zfs_close(zhp); 1021 nvlist_free(props); 1022 return (ret); 1023 badusage: 1024 nvlist_free(props); 1025 usage(B_FALSE); 1026 return (2); 1027 } 1028 1029 /* 1030 * zfs destroy [-rRf] <fs, vol> 1031 * zfs destroy [-rRd] <snap> 1032 * 1033 * -r Recursively destroy all children 1034 * -R Recursively destroy all dependents, including clones 1035 * -f Force unmounting of any dependents 1036 * -d If we can't destroy now, mark for deferred destruction 1037 * 1038 * Destroys the given dataset. By default, it will unmount any filesystems, 1039 * and refuse to destroy a dataset that has any dependents. A dependent can 1040 * either be a child, or a clone of a child. 1041 */ 1042 typedef struct destroy_cbdata { 1043 boolean_t cb_first; 1044 boolean_t cb_force; 1045 boolean_t cb_recurse; 1046 boolean_t cb_error; 1047 boolean_t cb_doclones; 1048 zfs_handle_t *cb_target; 1049 boolean_t cb_defer_destroy; 1050 boolean_t cb_verbose; 1051 boolean_t cb_parsable; 1052 boolean_t cb_dryrun; 1053 nvlist_t *cb_nvl; 1054 nvlist_t *cb_batchedsnaps; 1055 1056 /* first snap in contiguous run */ 1057 char *cb_firstsnap; 1058 /* previous snap in contiguous run */ 1059 char *cb_prevsnap; 1060 int64_t cb_snapused; 1061 char *cb_snapspec; 1062 char *cb_bookmark; 1063 } destroy_cbdata_t; 1064 1065 /* 1066 * Check for any dependents based on the '-r' or '-R' flags. 1067 */ 1068 static int 1069 destroy_check_dependent(zfs_handle_t *zhp, void *data) 1070 { 1071 destroy_cbdata_t *cbp = data; 1072 const char *tname = zfs_get_name(cbp->cb_target); 1073 const char *name = zfs_get_name(zhp); 1074 1075 if (strncmp(tname, name, strlen(tname)) == 0 && 1076 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 1077 /* 1078 * This is a direct descendant, not a clone somewhere else in 1079 * the hierarchy. 1080 */ 1081 if (cbp->cb_recurse) 1082 goto out; 1083 1084 if (cbp->cb_first) { 1085 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1086 "%s has children\n"), 1087 zfs_get_name(cbp->cb_target), 1088 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1089 (void) fprintf(stderr, gettext("use '-r' to destroy " 1090 "the following datasets:\n")); 1091 cbp->cb_first = B_FALSE; 1092 cbp->cb_error = B_TRUE; 1093 } 1094 1095 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1096 } else { 1097 /* 1098 * This is a clone. We only want to report this if the '-r' 1099 * wasn't specified, or the target is a snapshot. 1100 */ 1101 if (!cbp->cb_recurse && 1102 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1103 goto out; 1104 1105 if (cbp->cb_first) { 1106 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1107 "%s has dependent clones\n"), 1108 zfs_get_name(cbp->cb_target), 1109 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1110 (void) fprintf(stderr, gettext("use '-R' to destroy " 1111 "the following datasets:\n")); 1112 cbp->cb_first = B_FALSE; 1113 cbp->cb_error = B_TRUE; 1114 cbp->cb_dryrun = B_TRUE; 1115 } 1116 1117 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1118 } 1119 1120 out: 1121 zfs_close(zhp); 1122 return (0); 1123 } 1124 1125 static int 1126 destroy_callback(zfs_handle_t *zhp, void *data) 1127 { 1128 destroy_cbdata_t *cb = data; 1129 const char *name = zfs_get_name(zhp); 1130 1131 if (cb->cb_verbose) { 1132 if (cb->cb_parsable) { 1133 (void) printf("destroy\t%s\n", name); 1134 } else if (cb->cb_dryrun) { 1135 (void) printf(gettext("would destroy %s\n"), 1136 name); 1137 } else { 1138 (void) printf(gettext("will destroy %s\n"), 1139 name); 1140 } 1141 } 1142 1143 /* 1144 * Ignore pools (which we've already flagged as an error before getting 1145 * here). 1146 */ 1147 if (strchr(zfs_get_name(zhp), '/') == NULL && 1148 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1149 zfs_close(zhp); 1150 return (0); 1151 } 1152 if (cb->cb_dryrun) { 1153 zfs_close(zhp); 1154 return (0); 1155 } 1156 1157 /* 1158 * We batch up all contiguous snapshots (even of different 1159 * filesystems) and destroy them with one ioctl. We can't 1160 * simply do all snap deletions and then all fs deletions, 1161 * because we must delete a clone before its origin. 1162 */ 1163 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1164 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1165 } else { 1166 int error = zfs_destroy_snaps_nvl(g_zfs, 1167 cb->cb_batchedsnaps, B_FALSE); 1168 fnvlist_free(cb->cb_batchedsnaps); 1169 cb->cb_batchedsnaps = fnvlist_alloc(); 1170 1171 if (error != 0 || 1172 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1173 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1174 zfs_close(zhp); 1175 return (-1); 1176 } 1177 } 1178 1179 zfs_close(zhp); 1180 return (0); 1181 } 1182 1183 static int 1184 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1185 { 1186 destroy_cbdata_t *cb = arg; 1187 const char *name = zfs_get_name(zhp); 1188 int err = 0; 1189 1190 if (nvlist_exists(cb->cb_nvl, name)) { 1191 if (cb->cb_firstsnap == NULL) 1192 cb->cb_firstsnap = strdup(name); 1193 if (cb->cb_prevsnap != NULL) 1194 free(cb->cb_prevsnap); 1195 /* this snap continues the current range */ 1196 cb->cb_prevsnap = strdup(name); 1197 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1198 nomem(); 1199 if (cb->cb_verbose) { 1200 if (cb->cb_parsable) { 1201 (void) printf("destroy\t%s\n", name); 1202 } else if (cb->cb_dryrun) { 1203 (void) printf(gettext("would destroy %s\n"), 1204 name); 1205 } else { 1206 (void) printf(gettext("will destroy %s\n"), 1207 name); 1208 } 1209 } 1210 } else if (cb->cb_firstsnap != NULL) { 1211 /* end of this range */ 1212 uint64_t used = 0; 1213 err = lzc_snaprange_space(cb->cb_firstsnap, 1214 cb->cb_prevsnap, &used); 1215 cb->cb_snapused += used; 1216 free(cb->cb_firstsnap); 1217 cb->cb_firstsnap = NULL; 1218 free(cb->cb_prevsnap); 1219 cb->cb_prevsnap = NULL; 1220 } 1221 zfs_close(zhp); 1222 return (err); 1223 } 1224 1225 static int 1226 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1227 { 1228 int err = 0; 1229 assert(cb->cb_firstsnap == NULL); 1230 assert(cb->cb_prevsnap == NULL); 1231 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1232 if (cb->cb_firstsnap != NULL) { 1233 uint64_t used = 0; 1234 if (err == 0) { 1235 err = lzc_snaprange_space(cb->cb_firstsnap, 1236 cb->cb_prevsnap, &used); 1237 } 1238 cb->cb_snapused += used; 1239 free(cb->cb_firstsnap); 1240 cb->cb_firstsnap = NULL; 1241 free(cb->cb_prevsnap); 1242 cb->cb_prevsnap = NULL; 1243 } 1244 return (err); 1245 } 1246 1247 static int 1248 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1249 { 1250 destroy_cbdata_t *cb = arg; 1251 int err = 0; 1252 1253 /* Check for clones. */ 1254 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1255 cb->cb_target = zhp; 1256 cb->cb_first = B_TRUE; 1257 err = zfs_iter_dependents(zhp, B_TRUE, 1258 destroy_check_dependent, cb); 1259 } 1260 1261 if (err == 0) { 1262 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1263 nomem(); 1264 } 1265 zfs_close(zhp); 1266 return (err); 1267 } 1268 1269 static int 1270 gather_snapshots(zfs_handle_t *zhp, void *arg) 1271 { 1272 destroy_cbdata_t *cb = arg; 1273 int err = 0; 1274 1275 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1276 if (err == ENOENT) 1277 err = 0; 1278 if (err != 0) 1279 goto out; 1280 1281 if (cb->cb_verbose) { 1282 err = destroy_print_snapshots(zhp, cb); 1283 if (err != 0) 1284 goto out; 1285 } 1286 1287 if (cb->cb_recurse) 1288 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1289 1290 out: 1291 zfs_close(zhp); 1292 return (err); 1293 } 1294 1295 static int 1296 destroy_clones(destroy_cbdata_t *cb) 1297 { 1298 nvpair_t *pair; 1299 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1300 pair != NULL; 1301 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1302 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1303 ZFS_TYPE_SNAPSHOT); 1304 if (zhp != NULL) { 1305 boolean_t defer = cb->cb_defer_destroy; 1306 int err = 0; 1307 1308 /* 1309 * We can't defer destroy non-snapshots, so set it to 1310 * false while destroying the clones. 1311 */ 1312 cb->cb_defer_destroy = B_FALSE; 1313 err = zfs_iter_dependents(zhp, B_FALSE, 1314 destroy_callback, cb); 1315 cb->cb_defer_destroy = defer; 1316 zfs_close(zhp); 1317 if (err != 0) 1318 return (err); 1319 } 1320 } 1321 return (0); 1322 } 1323 1324 static int 1325 zfs_do_destroy(int argc, char **argv) 1326 { 1327 destroy_cbdata_t cb = { 0 }; 1328 int rv = 0; 1329 int err = 0; 1330 int c; 1331 zfs_handle_t *zhp = NULL; 1332 char *at, *pound; 1333 zfs_type_t type = ZFS_TYPE_DATASET; 1334 1335 /* check options */ 1336 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1337 switch (c) { 1338 case 'v': 1339 cb.cb_verbose = B_TRUE; 1340 break; 1341 case 'p': 1342 cb.cb_verbose = B_TRUE; 1343 cb.cb_parsable = B_TRUE; 1344 break; 1345 case 'n': 1346 cb.cb_dryrun = B_TRUE; 1347 break; 1348 case 'd': 1349 cb.cb_defer_destroy = B_TRUE; 1350 type = ZFS_TYPE_SNAPSHOT; 1351 break; 1352 case 'f': 1353 cb.cb_force = B_TRUE; 1354 break; 1355 case 'r': 1356 cb.cb_recurse = B_TRUE; 1357 break; 1358 case 'R': 1359 cb.cb_recurse = B_TRUE; 1360 cb.cb_doclones = B_TRUE; 1361 break; 1362 case '?': 1363 default: 1364 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1365 optopt); 1366 usage(B_FALSE); 1367 } 1368 } 1369 1370 argc -= optind; 1371 argv += optind; 1372 1373 /* check number of arguments */ 1374 if (argc == 0) { 1375 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1376 usage(B_FALSE); 1377 } 1378 if (argc > 1) { 1379 (void) fprintf(stderr, gettext("too many arguments\n")); 1380 usage(B_FALSE); 1381 } 1382 1383 at = strchr(argv[0], '@'); 1384 pound = strchr(argv[0], '#'); 1385 if (at != NULL) { 1386 1387 /* Build the list of snaps to destroy in cb_nvl. */ 1388 cb.cb_nvl = fnvlist_alloc(); 1389 1390 *at = '\0'; 1391 zhp = zfs_open(g_zfs, argv[0], 1392 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1393 if (zhp == NULL) 1394 return (1); 1395 1396 cb.cb_snapspec = at + 1; 1397 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1398 cb.cb_error) { 1399 rv = 1; 1400 goto out; 1401 } 1402 1403 if (nvlist_empty(cb.cb_nvl)) { 1404 (void) fprintf(stderr, gettext("could not find any " 1405 "snapshots to destroy; check snapshot names.\n")); 1406 rv = 1; 1407 goto out; 1408 } 1409 1410 if (cb.cb_verbose) { 1411 char buf[16]; 1412 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1413 if (cb.cb_parsable) { 1414 (void) printf("reclaim\t%llu\n", 1415 cb.cb_snapused); 1416 } else if (cb.cb_dryrun) { 1417 (void) printf(gettext("would reclaim %s\n"), 1418 buf); 1419 } else { 1420 (void) printf(gettext("will reclaim %s\n"), 1421 buf); 1422 } 1423 } 1424 1425 if (!cb.cb_dryrun) { 1426 if (cb.cb_doclones) { 1427 cb.cb_batchedsnaps = fnvlist_alloc(); 1428 err = destroy_clones(&cb); 1429 if (err == 0) { 1430 err = zfs_destroy_snaps_nvl(g_zfs, 1431 cb.cb_batchedsnaps, B_FALSE); 1432 } 1433 if (err != 0) { 1434 rv = 1; 1435 goto out; 1436 } 1437 } 1438 if (err == 0) { 1439 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1440 cb.cb_defer_destroy); 1441 } 1442 } 1443 1444 if (err != 0) 1445 rv = 1; 1446 } else if (pound != NULL) { 1447 int err; 1448 nvlist_t *nvl; 1449 1450 if (cb.cb_dryrun) { 1451 (void) fprintf(stderr, 1452 "dryrun is not supported with bookmark\n"); 1453 return (-1); 1454 } 1455 1456 if (cb.cb_defer_destroy) { 1457 (void) fprintf(stderr, 1458 "defer destroy is not supported with bookmark\n"); 1459 return (-1); 1460 } 1461 1462 if (cb.cb_recurse) { 1463 (void) fprintf(stderr, 1464 "recursive is not supported with bookmark\n"); 1465 return (-1); 1466 } 1467 1468 if (!zfs_bookmark_exists(argv[0])) { 1469 (void) fprintf(stderr, gettext("bookmark '%s' " 1470 "does not exist.\n"), argv[0]); 1471 return (1); 1472 } 1473 1474 nvl = fnvlist_alloc(); 1475 fnvlist_add_boolean(nvl, argv[0]); 1476 1477 err = lzc_destroy_bookmarks(nvl, NULL); 1478 if (err != 0) { 1479 (void) zfs_standard_error(g_zfs, err, 1480 "cannot destroy bookmark"); 1481 } 1482 1483 nvlist_free(cb.cb_nvl); 1484 1485 return (err); 1486 } else { 1487 /* Open the given dataset */ 1488 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1489 return (1); 1490 1491 cb.cb_target = zhp; 1492 1493 /* 1494 * Perform an explicit check for pools before going any further. 1495 */ 1496 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1497 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1498 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1499 "operation does not apply to pools\n"), 1500 zfs_get_name(zhp)); 1501 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1502 "%s' to destroy all datasets in the pool\n"), 1503 zfs_get_name(zhp)); 1504 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1505 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1506 rv = 1; 1507 goto out; 1508 } 1509 1510 /* 1511 * Check for any dependents and/or clones. 1512 */ 1513 cb.cb_first = B_TRUE; 1514 if (!cb.cb_doclones && 1515 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1516 &cb) != 0) { 1517 rv = 1; 1518 goto out; 1519 } 1520 1521 if (cb.cb_error) { 1522 rv = 1; 1523 goto out; 1524 } 1525 1526 cb.cb_batchedsnaps = fnvlist_alloc(); 1527 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1528 &cb) != 0) { 1529 rv = 1; 1530 goto out; 1531 } 1532 1533 /* 1534 * Do the real thing. The callback will close the 1535 * handle regardless of whether it succeeds or not. 1536 */ 1537 err = destroy_callback(zhp, &cb); 1538 zhp = NULL; 1539 if (err == 0) { 1540 err = zfs_destroy_snaps_nvl(g_zfs, 1541 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1542 } 1543 if (err != 0) 1544 rv = 1; 1545 } 1546 1547 out: 1548 fnvlist_free(cb.cb_batchedsnaps); 1549 fnvlist_free(cb.cb_nvl); 1550 if (zhp != NULL) 1551 zfs_close(zhp); 1552 return (rv); 1553 } 1554 1555 static boolean_t 1556 is_recvd_column(zprop_get_cbdata_t *cbp) 1557 { 1558 int i; 1559 zfs_get_column_t col; 1560 1561 for (i = 0; i < ZFS_GET_NCOLS && 1562 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1563 if (col == GET_COL_RECVD) 1564 return (B_TRUE); 1565 return (B_FALSE); 1566 } 1567 1568 /* 1569 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1570 * < all | property[,property]... > < fs | snap | vol > ... 1571 * 1572 * -r recurse over any child datasets 1573 * -H scripted mode. Headers are stripped, and fields are separated 1574 * by tabs instead of spaces. 1575 * -o Set of fields to display. One of "name,property,value, 1576 * received,source". Default is "name,property,value,source". 1577 * "all" is an alias for all five. 1578 * -s Set of sources to allow. One of 1579 * "local,default,inherited,received,temporary,none". Default is 1580 * all six. 1581 * -p Display values in parsable (literal) format. 1582 * 1583 * Prints properties for the given datasets. The user can control which 1584 * columns to display as well as which property types to allow. 1585 */ 1586 1587 /* 1588 * Invoked to display the properties for a single dataset. 1589 */ 1590 static int 1591 get_callback(zfs_handle_t *zhp, void *data) 1592 { 1593 char buf[ZFS_MAXPROPLEN]; 1594 char rbuf[ZFS_MAXPROPLEN]; 1595 zprop_source_t sourcetype; 1596 char source[ZFS_MAX_DATASET_NAME_LEN]; 1597 zprop_get_cbdata_t *cbp = data; 1598 nvlist_t *user_props = zfs_get_user_props(zhp); 1599 zprop_list_t *pl = cbp->cb_proplist; 1600 nvlist_t *propval; 1601 char *strval; 1602 char *sourceval; 1603 boolean_t received = is_recvd_column(cbp); 1604 1605 for (; pl != NULL; pl = pl->pl_next) { 1606 char *recvdval = NULL; 1607 /* 1608 * Skip the special fake placeholder. This will also skip over 1609 * the name property when 'all' is specified. 1610 */ 1611 if (pl->pl_prop == ZFS_PROP_NAME && 1612 pl == cbp->cb_proplist) 1613 continue; 1614 1615 if (pl->pl_prop != ZPROP_INVAL) { 1616 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1617 sizeof (buf), &sourcetype, source, 1618 sizeof (source), 1619 cbp->cb_literal) != 0) { 1620 if (pl->pl_all) 1621 continue; 1622 if (!zfs_prop_valid_for_type(pl->pl_prop, 1623 ZFS_TYPE_DATASET)) { 1624 (void) fprintf(stderr, 1625 gettext("No such property '%s'\n"), 1626 zfs_prop_to_name(pl->pl_prop)); 1627 continue; 1628 } 1629 sourcetype = ZPROP_SRC_NONE; 1630 (void) strlcpy(buf, "-", sizeof (buf)); 1631 } 1632 1633 if (received && (zfs_prop_get_recvd(zhp, 1634 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1635 cbp->cb_literal) == 0)) 1636 recvdval = rbuf; 1637 1638 zprop_print_one_property(zfs_get_name(zhp), cbp, 1639 zfs_prop_to_name(pl->pl_prop), 1640 buf, sourcetype, source, recvdval); 1641 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1642 sourcetype = ZPROP_SRC_LOCAL; 1643 1644 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1645 buf, sizeof (buf), cbp->cb_literal) != 0) { 1646 sourcetype = ZPROP_SRC_NONE; 1647 (void) strlcpy(buf, "-", sizeof (buf)); 1648 } 1649 1650 zprop_print_one_property(zfs_get_name(zhp), cbp, 1651 pl->pl_user_prop, buf, sourcetype, source, NULL); 1652 } else if (zfs_prop_written(pl->pl_user_prop)) { 1653 sourcetype = ZPROP_SRC_LOCAL; 1654 1655 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1656 buf, sizeof (buf), cbp->cb_literal) != 0) { 1657 sourcetype = ZPROP_SRC_NONE; 1658 (void) strlcpy(buf, "-", sizeof (buf)); 1659 } 1660 1661 zprop_print_one_property(zfs_get_name(zhp), cbp, 1662 pl->pl_user_prop, buf, sourcetype, source, NULL); 1663 } else { 1664 if (nvlist_lookup_nvlist(user_props, 1665 pl->pl_user_prop, &propval) != 0) { 1666 if (pl->pl_all) 1667 continue; 1668 sourcetype = ZPROP_SRC_NONE; 1669 strval = "-"; 1670 } else { 1671 verify(nvlist_lookup_string(propval, 1672 ZPROP_VALUE, &strval) == 0); 1673 verify(nvlist_lookup_string(propval, 1674 ZPROP_SOURCE, &sourceval) == 0); 1675 1676 if (strcmp(sourceval, 1677 zfs_get_name(zhp)) == 0) { 1678 sourcetype = ZPROP_SRC_LOCAL; 1679 } else if (strcmp(sourceval, 1680 ZPROP_SOURCE_VAL_RECVD) == 0) { 1681 sourcetype = ZPROP_SRC_RECEIVED; 1682 } else { 1683 sourcetype = ZPROP_SRC_INHERITED; 1684 (void) strlcpy(source, 1685 sourceval, sizeof (source)); 1686 } 1687 } 1688 1689 if (received && (zfs_prop_get_recvd(zhp, 1690 pl->pl_user_prop, rbuf, sizeof (rbuf), 1691 cbp->cb_literal) == 0)) 1692 recvdval = rbuf; 1693 1694 zprop_print_one_property(zfs_get_name(zhp), cbp, 1695 pl->pl_user_prop, strval, sourcetype, 1696 source, recvdval); 1697 } 1698 } 1699 1700 return (0); 1701 } 1702 1703 static int 1704 zfs_do_get(int argc, char **argv) 1705 { 1706 zprop_get_cbdata_t cb = { 0 }; 1707 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1708 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 1709 char *value, *fields; 1710 int ret = 0; 1711 int limit = 0; 1712 zprop_list_t fake_name = { 0 }; 1713 1714 /* 1715 * Set up default columns and sources. 1716 */ 1717 cb.cb_sources = ZPROP_SRC_ALL; 1718 cb.cb_columns[0] = GET_COL_NAME; 1719 cb.cb_columns[1] = GET_COL_PROPERTY; 1720 cb.cb_columns[2] = GET_COL_VALUE; 1721 cb.cb_columns[3] = GET_COL_SOURCE; 1722 cb.cb_type = ZFS_TYPE_DATASET; 1723 1724 /* check options */ 1725 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1726 switch (c) { 1727 case 'p': 1728 cb.cb_literal = B_TRUE; 1729 break; 1730 case 'd': 1731 limit = parse_depth(optarg, &flags); 1732 break; 1733 case 'r': 1734 flags |= ZFS_ITER_RECURSE; 1735 break; 1736 case 'H': 1737 cb.cb_scripted = B_TRUE; 1738 break; 1739 case ':': 1740 (void) fprintf(stderr, gettext("missing argument for " 1741 "'%c' option\n"), optopt); 1742 usage(B_FALSE); 1743 break; 1744 case 'o': 1745 /* 1746 * Process the set of columns to display. We zero out 1747 * the structure to give us a blank slate. 1748 */ 1749 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1750 i = 0; 1751 while (*optarg != '\0') { 1752 static char *col_subopts[] = 1753 { "name", "property", "value", "received", 1754 "source", "all", NULL }; 1755 1756 if (i == ZFS_GET_NCOLS) { 1757 (void) fprintf(stderr, gettext("too " 1758 "many fields given to -o " 1759 "option\n")); 1760 usage(B_FALSE); 1761 } 1762 1763 switch (getsubopt(&optarg, col_subopts, 1764 &value)) { 1765 case 0: 1766 cb.cb_columns[i++] = GET_COL_NAME; 1767 break; 1768 case 1: 1769 cb.cb_columns[i++] = GET_COL_PROPERTY; 1770 break; 1771 case 2: 1772 cb.cb_columns[i++] = GET_COL_VALUE; 1773 break; 1774 case 3: 1775 cb.cb_columns[i++] = GET_COL_RECVD; 1776 flags |= ZFS_ITER_RECVD_PROPS; 1777 break; 1778 case 4: 1779 cb.cb_columns[i++] = GET_COL_SOURCE; 1780 break; 1781 case 5: 1782 if (i > 0) { 1783 (void) fprintf(stderr, 1784 gettext("\"all\" conflicts " 1785 "with specific fields " 1786 "given to -o option\n")); 1787 usage(B_FALSE); 1788 } 1789 cb.cb_columns[0] = GET_COL_NAME; 1790 cb.cb_columns[1] = GET_COL_PROPERTY; 1791 cb.cb_columns[2] = GET_COL_VALUE; 1792 cb.cb_columns[3] = GET_COL_RECVD; 1793 cb.cb_columns[4] = GET_COL_SOURCE; 1794 flags |= ZFS_ITER_RECVD_PROPS; 1795 i = ZFS_GET_NCOLS; 1796 break; 1797 default: 1798 (void) fprintf(stderr, 1799 gettext("invalid column name " 1800 "'%s'\n"), value); 1801 usage(B_FALSE); 1802 } 1803 } 1804 break; 1805 1806 case 's': 1807 cb.cb_sources = 0; 1808 while (*optarg != '\0') { 1809 static char *source_subopts[] = { 1810 "local", "default", "inherited", 1811 "received", "temporary", "none", 1812 NULL }; 1813 1814 switch (getsubopt(&optarg, source_subopts, 1815 &value)) { 1816 case 0: 1817 cb.cb_sources |= ZPROP_SRC_LOCAL; 1818 break; 1819 case 1: 1820 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1821 break; 1822 case 2: 1823 cb.cb_sources |= ZPROP_SRC_INHERITED; 1824 break; 1825 case 3: 1826 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1827 break; 1828 case 4: 1829 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1830 break; 1831 case 5: 1832 cb.cb_sources |= ZPROP_SRC_NONE; 1833 break; 1834 default: 1835 (void) fprintf(stderr, 1836 gettext("invalid source " 1837 "'%s'\n"), value); 1838 usage(B_FALSE); 1839 } 1840 } 1841 break; 1842 1843 case 't': 1844 types = 0; 1845 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1846 while (*optarg != '\0') { 1847 static char *type_subopts[] = { "filesystem", 1848 "volume", "snapshot", "bookmark", 1849 "all", NULL }; 1850 1851 switch (getsubopt(&optarg, type_subopts, 1852 &value)) { 1853 case 0: 1854 types |= ZFS_TYPE_FILESYSTEM; 1855 break; 1856 case 1: 1857 types |= ZFS_TYPE_VOLUME; 1858 break; 1859 case 2: 1860 types |= ZFS_TYPE_SNAPSHOT; 1861 break; 1862 case 3: 1863 types |= ZFS_TYPE_BOOKMARK; 1864 break; 1865 case 4: 1866 types = ZFS_TYPE_DATASET | 1867 ZFS_TYPE_BOOKMARK; 1868 break; 1869 1870 default: 1871 (void) fprintf(stderr, 1872 gettext("invalid type '%s'\n"), 1873 value); 1874 usage(B_FALSE); 1875 } 1876 } 1877 break; 1878 1879 case '?': 1880 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1881 optopt); 1882 usage(B_FALSE); 1883 } 1884 } 1885 1886 argc -= optind; 1887 argv += optind; 1888 1889 if (argc < 1) { 1890 (void) fprintf(stderr, gettext("missing property " 1891 "argument\n")); 1892 usage(B_FALSE); 1893 } 1894 1895 fields = argv[0]; 1896 1897 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1898 != 0) 1899 usage(B_FALSE); 1900 1901 argc--; 1902 argv++; 1903 1904 /* 1905 * As part of zfs_expand_proplist(), we keep track of the maximum column 1906 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1907 * need to know the maximum name length. However, the user likely did 1908 * not specify 'name' as one of the properties to fetch, so we need to 1909 * make sure we always include at least this property for 1910 * print_get_headers() to work properly. 1911 */ 1912 if (cb.cb_proplist != NULL) { 1913 fake_name.pl_prop = ZFS_PROP_NAME; 1914 fake_name.pl_width = strlen(gettext("NAME")); 1915 fake_name.pl_next = cb.cb_proplist; 1916 cb.cb_proplist = &fake_name; 1917 } 1918 1919 cb.cb_first = B_TRUE; 1920 1921 /* run for each object */ 1922 ret = zfs_for_each(argc, argv, flags, types, NULL, 1923 &cb.cb_proplist, limit, get_callback, &cb); 1924 1925 if (cb.cb_proplist == &fake_name) 1926 zprop_free_list(fake_name.pl_next); 1927 else 1928 zprop_free_list(cb.cb_proplist); 1929 1930 return (ret); 1931 } 1932 1933 /* 1934 * inherit [-rS] <property> <fs|vol> ... 1935 * 1936 * -r Recurse over all children 1937 * -S Revert to received value, if any 1938 * 1939 * For each dataset specified on the command line, inherit the given property 1940 * from its parent. Inheriting a property at the pool level will cause it to 1941 * use the default value. The '-r' flag will recurse over all children, and is 1942 * useful for setting a property on a hierarchy-wide basis, regardless of any 1943 * local modifications for each dataset. 1944 */ 1945 1946 typedef struct inherit_cbdata { 1947 const char *cb_propname; 1948 boolean_t cb_received; 1949 } inherit_cbdata_t; 1950 1951 static int 1952 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1953 { 1954 inherit_cbdata_t *cb = data; 1955 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1956 1957 /* 1958 * If we're doing it recursively, then ignore properties that 1959 * are not valid for this type of dataset. 1960 */ 1961 if (prop != ZPROP_INVAL && 1962 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1963 return (0); 1964 1965 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1966 } 1967 1968 static int 1969 inherit_cb(zfs_handle_t *zhp, void *data) 1970 { 1971 inherit_cbdata_t *cb = data; 1972 1973 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1974 } 1975 1976 static int 1977 zfs_do_inherit(int argc, char **argv) 1978 { 1979 int c; 1980 zfs_prop_t prop; 1981 inherit_cbdata_t cb = { 0 }; 1982 char *propname; 1983 int ret = 0; 1984 int flags = 0; 1985 boolean_t received = B_FALSE; 1986 1987 /* check options */ 1988 while ((c = getopt(argc, argv, "rS")) != -1) { 1989 switch (c) { 1990 case 'r': 1991 flags |= ZFS_ITER_RECURSE; 1992 break; 1993 case 'S': 1994 received = B_TRUE; 1995 break; 1996 case '?': 1997 default: 1998 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1999 optopt); 2000 usage(B_FALSE); 2001 } 2002 } 2003 2004 argc -= optind; 2005 argv += optind; 2006 2007 /* check number of arguments */ 2008 if (argc < 1) { 2009 (void) fprintf(stderr, gettext("missing property argument\n")); 2010 usage(B_FALSE); 2011 } 2012 if (argc < 2) { 2013 (void) fprintf(stderr, gettext("missing dataset argument\n")); 2014 usage(B_FALSE); 2015 } 2016 2017 propname = argv[0]; 2018 argc--; 2019 argv++; 2020 2021 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 2022 if (zfs_prop_readonly(prop)) { 2023 (void) fprintf(stderr, gettext( 2024 "%s property is read-only\n"), 2025 propname); 2026 return (1); 2027 } 2028 if (!zfs_prop_inheritable(prop) && !received) { 2029 (void) fprintf(stderr, gettext("'%s' property cannot " 2030 "be inherited\n"), propname); 2031 if (prop == ZFS_PROP_QUOTA || 2032 prop == ZFS_PROP_RESERVATION || 2033 prop == ZFS_PROP_REFQUOTA || 2034 prop == ZFS_PROP_REFRESERVATION) { 2035 (void) fprintf(stderr, gettext("use 'zfs set " 2036 "%s=none' to clear\n"), propname); 2037 (void) fprintf(stderr, gettext("use 'zfs " 2038 "inherit -S %s' to revert to received " 2039 "value\n"), propname); 2040 } 2041 return (1); 2042 } 2043 if (received && (prop == ZFS_PROP_VOLSIZE || 2044 prop == ZFS_PROP_VERSION)) { 2045 (void) fprintf(stderr, gettext("'%s' property cannot " 2046 "be reverted to a received value\n"), propname); 2047 return (1); 2048 } 2049 } else if (!zfs_prop_user(propname)) { 2050 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 2051 propname); 2052 usage(B_FALSE); 2053 } 2054 2055 cb.cb_propname = propname; 2056 cb.cb_received = received; 2057 2058 if (flags & ZFS_ITER_RECURSE) { 2059 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2060 NULL, NULL, 0, inherit_recurse_cb, &cb); 2061 } else { 2062 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2063 NULL, NULL, 0, inherit_cb, &cb); 2064 } 2065 2066 return (ret); 2067 } 2068 2069 typedef struct upgrade_cbdata { 2070 uint64_t cb_numupgraded; 2071 uint64_t cb_numsamegraded; 2072 uint64_t cb_numfailed; 2073 uint64_t cb_version; 2074 boolean_t cb_newer; 2075 boolean_t cb_foundone; 2076 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 2077 } upgrade_cbdata_t; 2078 2079 static int 2080 same_pool(zfs_handle_t *zhp, const char *name) 2081 { 2082 int len1 = strcspn(name, "/@"); 2083 const char *zhname = zfs_get_name(zhp); 2084 int len2 = strcspn(zhname, "/@"); 2085 2086 if (len1 != len2) 2087 return (B_FALSE); 2088 return (strncmp(name, zhname, len1) == 0); 2089 } 2090 2091 static int 2092 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2093 { 2094 upgrade_cbdata_t *cb = data; 2095 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2096 2097 /* list if it's old/new */ 2098 if ((!cb->cb_newer && version < ZPL_VERSION) || 2099 (cb->cb_newer && version > ZPL_VERSION)) { 2100 char *str; 2101 if (cb->cb_newer) { 2102 str = gettext("The following filesystems are " 2103 "formatted using a newer software version and\n" 2104 "cannot be accessed on the current system.\n\n"); 2105 } else { 2106 str = gettext("The following filesystems are " 2107 "out of date, and can be upgraded. After being\n" 2108 "upgraded, these filesystems (and any 'zfs send' " 2109 "streams generated from\n" 2110 "subsequent snapshots) will no longer be " 2111 "accessible by older software versions.\n\n"); 2112 } 2113 2114 if (!cb->cb_foundone) { 2115 (void) puts(str); 2116 (void) printf(gettext("VER FILESYSTEM\n")); 2117 (void) printf(gettext("--- ------------\n")); 2118 cb->cb_foundone = B_TRUE; 2119 } 2120 2121 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2122 } 2123 2124 return (0); 2125 } 2126 2127 static int 2128 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2129 { 2130 upgrade_cbdata_t *cb = data; 2131 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2132 int needed_spa_version; 2133 int spa_version; 2134 2135 if (zfs_spa_version(zhp, &spa_version) < 0) 2136 return (-1); 2137 2138 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2139 2140 if (needed_spa_version < 0) 2141 return (-1); 2142 2143 if (spa_version < needed_spa_version) { 2144 /* can't upgrade */ 2145 (void) printf(gettext("%s: can not be " 2146 "upgraded; the pool version needs to first " 2147 "be upgraded\nto version %d\n\n"), 2148 zfs_get_name(zhp), needed_spa_version); 2149 cb->cb_numfailed++; 2150 return (0); 2151 } 2152 2153 /* upgrade */ 2154 if (version < cb->cb_version) { 2155 char verstr[16]; 2156 (void) snprintf(verstr, sizeof (verstr), 2157 "%llu", cb->cb_version); 2158 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2159 /* 2160 * If they did "zfs upgrade -a", then we could 2161 * be doing ioctls to different pools. We need 2162 * to log this history once to each pool, and bypass 2163 * the normal history logging that happens in main(). 2164 */ 2165 (void) zpool_log_history(g_zfs, history_str); 2166 log_history = B_FALSE; 2167 } 2168 if (zfs_prop_set(zhp, "version", verstr) == 0) 2169 cb->cb_numupgraded++; 2170 else 2171 cb->cb_numfailed++; 2172 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2173 } else if (version > cb->cb_version) { 2174 /* can't downgrade */ 2175 (void) printf(gettext("%s: can not be downgraded; " 2176 "it is already at version %u\n"), 2177 zfs_get_name(zhp), version); 2178 cb->cb_numfailed++; 2179 } else { 2180 cb->cb_numsamegraded++; 2181 } 2182 return (0); 2183 } 2184 2185 /* 2186 * zfs upgrade 2187 * zfs upgrade -v 2188 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2189 */ 2190 static int 2191 zfs_do_upgrade(int argc, char **argv) 2192 { 2193 boolean_t all = B_FALSE; 2194 boolean_t showversions = B_FALSE; 2195 int ret = 0; 2196 upgrade_cbdata_t cb = { 0 }; 2197 char c; 2198 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2199 2200 /* check options */ 2201 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2202 switch (c) { 2203 case 'r': 2204 flags |= ZFS_ITER_RECURSE; 2205 break; 2206 case 'v': 2207 showversions = B_TRUE; 2208 break; 2209 case 'V': 2210 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2211 optarg, &cb.cb_version) != 0) { 2212 (void) fprintf(stderr, 2213 gettext("invalid version %s\n"), optarg); 2214 usage(B_FALSE); 2215 } 2216 break; 2217 case 'a': 2218 all = B_TRUE; 2219 break; 2220 case '?': 2221 default: 2222 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2223 optopt); 2224 usage(B_FALSE); 2225 } 2226 } 2227 2228 argc -= optind; 2229 argv += optind; 2230 2231 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2232 usage(B_FALSE); 2233 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2234 cb.cb_version || argc)) 2235 usage(B_FALSE); 2236 if ((all || argc) && (showversions)) 2237 usage(B_FALSE); 2238 if (all && argc) 2239 usage(B_FALSE); 2240 2241 if (showversions) { 2242 /* Show info on available versions. */ 2243 (void) printf(gettext("The following filesystem versions are " 2244 "supported:\n\n")); 2245 (void) printf(gettext("VER DESCRIPTION\n")); 2246 (void) printf("--- -----------------------------------------" 2247 "---------------\n"); 2248 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2249 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2250 (void) printf(gettext(" 3 Case insensitive and filesystem " 2251 "user identifier (FUID)\n")); 2252 (void) printf(gettext(" 4 userquota, groupquota " 2253 "properties\n")); 2254 (void) printf(gettext(" 5 System attributes\n")); 2255 (void) printf(gettext("\nFor more information on a particular " 2256 "version, including supported releases,\n")); 2257 (void) printf("see the ZFS Administration Guide.\n\n"); 2258 ret = 0; 2259 } else if (argc || all) { 2260 /* Upgrade filesystems */ 2261 if (cb.cb_version == 0) 2262 cb.cb_version = ZPL_VERSION; 2263 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2264 NULL, NULL, 0, upgrade_set_callback, &cb); 2265 (void) printf(gettext("%llu filesystems upgraded\n"), 2266 cb.cb_numupgraded); 2267 if (cb.cb_numsamegraded) { 2268 (void) printf(gettext("%llu filesystems already at " 2269 "this version\n"), 2270 cb.cb_numsamegraded); 2271 } 2272 if (cb.cb_numfailed != 0) 2273 ret = 1; 2274 } else { 2275 /* List old-version filesystems */ 2276 boolean_t found; 2277 (void) printf(gettext("This system is currently running " 2278 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2279 2280 flags |= ZFS_ITER_RECURSE; 2281 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2282 NULL, NULL, 0, upgrade_list_callback, &cb); 2283 2284 found = cb.cb_foundone; 2285 cb.cb_foundone = B_FALSE; 2286 cb.cb_newer = B_TRUE; 2287 2288 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2289 NULL, NULL, 0, upgrade_list_callback, &cb); 2290 2291 if (!cb.cb_foundone && !found) { 2292 (void) printf(gettext("All filesystems are " 2293 "formatted with the current version.\n")); 2294 } 2295 } 2296 2297 return (ret); 2298 } 2299 2300 /* 2301 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2302 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2303 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2304 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2305 * zfs projectspace [-Hp] [-o field[,...]] [-s field [-s field]...] 2306 * [-S field [-S field]...] filesystem | snapshot 2307 * 2308 * -H Scripted mode; elide headers and separate columns by tabs. 2309 * -i Translate SID to POSIX ID. 2310 * -n Print numeric ID instead of user/group name. 2311 * -o Control which fields to display. 2312 * -p Use exact (parsable) numeric output. 2313 * -s Specify sort columns, descending order. 2314 * -S Specify sort columns, ascending order. 2315 * -t Control which object types to display. 2316 * 2317 * Displays space consumed by, and quotas on, each user in the specified 2318 * filesystem or snapshot. 2319 */ 2320 2321 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2322 enum us_field_types { 2323 USFIELD_TYPE, 2324 USFIELD_NAME, 2325 USFIELD_USED, 2326 USFIELD_QUOTA, 2327 USFIELD_OBJUSED, 2328 USFIELD_OBJQUOTA 2329 }; 2330 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA", 2331 "OBJUSED", "OBJQUOTA" }; 2332 static char *us_field_names[] = { "type", "name", "used", "quota", 2333 "objused", "objquota" }; 2334 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2335 2336 #define USTYPE_PSX_GRP (1 << 0) 2337 #define USTYPE_PSX_USR (1 << 1) 2338 #define USTYPE_SMB_GRP (1 << 2) 2339 #define USTYPE_SMB_USR (1 << 3) 2340 #define USTYPE_PROJ (1 << 4) 2341 #define USTYPE_ALL \ 2342 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR | \ 2343 USTYPE_PROJ) 2344 2345 static int us_type_bits[] = { 2346 USTYPE_PSX_GRP, 2347 USTYPE_PSX_USR, 2348 USTYPE_SMB_GRP, 2349 USTYPE_SMB_USR, 2350 USTYPE_ALL 2351 }; 2352 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2353 "smbuser", "all" }; 2354 2355 typedef struct us_node { 2356 nvlist_t *usn_nvl; 2357 uu_avl_node_t usn_avlnode; 2358 uu_list_node_t usn_listnode; 2359 } us_node_t; 2360 2361 typedef struct us_cbdata { 2362 nvlist_t **cb_nvlp; 2363 uu_avl_pool_t *cb_avl_pool; 2364 uu_avl_t *cb_avl; 2365 boolean_t cb_numname; 2366 boolean_t cb_nicenum; 2367 boolean_t cb_sid2posix; 2368 zfs_userquota_prop_t cb_prop; 2369 zfs_sort_column_t *cb_sortcol; 2370 size_t cb_width[USFIELD_LAST]; 2371 } us_cbdata_t; 2372 2373 static boolean_t us_populated = B_FALSE; 2374 2375 typedef struct { 2376 zfs_sort_column_t *si_sortcol; 2377 boolean_t si_numname; 2378 } us_sort_info_t; 2379 2380 static int 2381 us_field_index(char *field) 2382 { 2383 int i; 2384 2385 for (i = 0; i < USFIELD_LAST; i++) { 2386 if (strcmp(field, us_field_names[i]) == 0) 2387 return (i); 2388 } 2389 2390 return (-1); 2391 } 2392 2393 static int 2394 us_compare(const void *larg, const void *rarg, void *unused) 2395 { 2396 const us_node_t *l = larg; 2397 const us_node_t *r = rarg; 2398 us_sort_info_t *si = (us_sort_info_t *)unused; 2399 zfs_sort_column_t *sortcol = si->si_sortcol; 2400 boolean_t numname = si->si_numname; 2401 nvlist_t *lnvl = l->usn_nvl; 2402 nvlist_t *rnvl = r->usn_nvl; 2403 int rc = 0; 2404 boolean_t lvb, rvb; 2405 2406 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2407 char *lvstr = ""; 2408 char *rvstr = ""; 2409 uint32_t lv32 = 0; 2410 uint32_t rv32 = 0; 2411 uint64_t lv64 = 0; 2412 uint64_t rv64 = 0; 2413 zfs_prop_t prop = sortcol->sc_prop; 2414 const char *propname = NULL; 2415 boolean_t reverse = sortcol->sc_reverse; 2416 2417 switch (prop) { 2418 case ZFS_PROP_TYPE: 2419 propname = "type"; 2420 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2421 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2422 if (rv32 != lv32) 2423 rc = (rv32 < lv32) ? 1 : -1; 2424 break; 2425 case ZFS_PROP_NAME: 2426 propname = "name"; 2427 if (numname) { 2428 (void) nvlist_lookup_uint64(lnvl, propname, 2429 &lv64); 2430 (void) nvlist_lookup_uint64(rnvl, propname, 2431 &rv64); 2432 if (rv64 != lv64) 2433 rc = (rv64 < lv64) ? 1 : -1; 2434 } else { 2435 (void) nvlist_lookup_string(lnvl, propname, 2436 &lvstr); 2437 (void) nvlist_lookup_string(rnvl, propname, 2438 &rvstr); 2439 rc = strcmp(lvstr, rvstr); 2440 } 2441 break; 2442 case ZFS_PROP_USED: 2443 case ZFS_PROP_QUOTA: 2444 if (!us_populated) 2445 break; 2446 if (prop == ZFS_PROP_USED) 2447 propname = "used"; 2448 else 2449 propname = "quota"; 2450 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2451 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2452 if (rv64 != lv64) 2453 rc = (rv64 < lv64) ? 1 : -1; 2454 break; 2455 2456 default: 2457 break; 2458 } 2459 2460 if (rc != 0) { 2461 if (rc < 0) 2462 return (reverse ? 1 : -1); 2463 else 2464 return (reverse ? -1 : 1); 2465 } 2466 } 2467 2468 /* 2469 * If entries still seem to be the same, check if they are of the same 2470 * type (smbentity is added only if we are doing SID to POSIX ID 2471 * translation where we can have duplicate type/name combinations). 2472 */ 2473 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2474 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2475 lvb != rvb) 2476 return (lvb < rvb ? -1 : 1); 2477 2478 return (0); 2479 } 2480 2481 static boolean_t 2482 zfs_prop_is_user(unsigned p) 2483 { 2484 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA || 2485 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA); 2486 } 2487 2488 static boolean_t 2489 zfs_prop_is_group(unsigned p) 2490 { 2491 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA || 2492 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA); 2493 } 2494 2495 static boolean_t 2496 zfs_prop_is_project(unsigned p) 2497 { 2498 return (p == ZFS_PROP_PROJECTUSED || p == ZFS_PROP_PROJECTQUOTA || 2499 p == ZFS_PROP_PROJECTOBJUSED || p == ZFS_PROP_PROJECTOBJQUOTA); 2500 } 2501 2502 static inline const char * 2503 us_type2str(unsigned field_type) 2504 { 2505 switch (field_type) { 2506 case USTYPE_PSX_USR: 2507 return ("POSIX User"); 2508 case USTYPE_PSX_GRP: 2509 return ("POSIX Group"); 2510 case USTYPE_SMB_USR: 2511 return ("SMB User"); 2512 case USTYPE_SMB_GRP: 2513 return ("SMB Group"); 2514 case USTYPE_PROJ: 2515 return ("Project"); 2516 default: 2517 return ("Undefined"); 2518 } 2519 } 2520 2521 static int 2522 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2523 { 2524 us_cbdata_t *cb = (us_cbdata_t *)arg; 2525 zfs_userquota_prop_t prop = cb->cb_prop; 2526 char *name = NULL; 2527 char *propname; 2528 char sizebuf[32]; 2529 us_node_t *node; 2530 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2531 uu_avl_t *avl = cb->cb_avl; 2532 uu_avl_index_t idx; 2533 nvlist_t *props; 2534 us_node_t *n; 2535 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2536 unsigned type = 0; 2537 const char *typestr; 2538 size_t namelen; 2539 size_t typelen; 2540 size_t sizelen; 2541 int typeidx, nameidx, sizeidx; 2542 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2543 boolean_t smbentity = B_FALSE; 2544 2545 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2546 nomem(); 2547 node = safe_malloc(sizeof (us_node_t)); 2548 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2549 node->usn_nvl = props; 2550 2551 if (domain != NULL && domain[0] != '\0') { 2552 /* SMB */ 2553 char sid[MAXNAMELEN + 32]; 2554 uid_t id; 2555 int err; 2556 int flag = IDMAP_REQ_FLG_USE_CACHE; 2557 2558 smbentity = B_TRUE; 2559 2560 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2561 2562 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2563 type = USTYPE_SMB_GRP; 2564 err = sid_to_id(sid, B_FALSE, &id); 2565 } else { 2566 type = USTYPE_SMB_USR; 2567 err = sid_to_id(sid, B_TRUE, &id); 2568 } 2569 2570 if (err == 0) { 2571 rid = id; 2572 if (!cb->cb_sid2posix) { 2573 if (type == USTYPE_SMB_USR) { 2574 (void) idmap_getwinnamebyuid(rid, flag, 2575 &name, NULL); 2576 } else { 2577 (void) idmap_getwinnamebygid(rid, flag, 2578 &name, NULL); 2579 } 2580 if (name == NULL) 2581 name = sid; 2582 } 2583 } 2584 } 2585 2586 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2587 /* POSIX or -i */ 2588 if (zfs_prop_is_group(prop)) { 2589 type = USTYPE_PSX_GRP; 2590 if (!cb->cb_numname) { 2591 struct group *g; 2592 2593 if ((g = getgrgid(rid)) != NULL) 2594 name = g->gr_name; 2595 } 2596 } else if (zfs_prop_is_user(prop)) { 2597 type = USTYPE_PSX_USR; 2598 if (!cb->cb_numname) { 2599 struct passwd *p; 2600 2601 if ((p = getpwuid(rid)) != NULL) 2602 name = p->pw_name; 2603 } 2604 } else { 2605 type = USTYPE_PROJ; 2606 } 2607 } 2608 2609 /* 2610 * Make sure that the type/name combination is unique when doing 2611 * SID to POSIX ID translation (hence changing the type from SMB to 2612 * POSIX). 2613 */ 2614 if (cb->cb_sid2posix && 2615 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2616 nomem(); 2617 2618 /* Calculate/update width of TYPE field */ 2619 typestr = us_type2str(type); 2620 typelen = strlen(gettext(typestr)); 2621 typeidx = us_field_index("type"); 2622 if (typelen > cb->cb_width[typeidx]) 2623 cb->cb_width[typeidx] = typelen; 2624 if (nvlist_add_uint32(props, "type", type) != 0) 2625 nomem(); 2626 2627 /* Calculate/update width of NAME field */ 2628 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2629 if (nvlist_add_uint64(props, "name", rid) != 0) 2630 nomem(); 2631 namelen = snprintf(NULL, 0, "%u", rid); 2632 } else { 2633 if (nvlist_add_string(props, "name", name) != 0) 2634 nomem(); 2635 namelen = strlen(name); 2636 } 2637 nameidx = us_field_index("name"); 2638 if (namelen > cb->cb_width[nameidx]) 2639 cb->cb_width[nameidx] = namelen; 2640 2641 /* 2642 * Check if this type/name combination is in the list and update it; 2643 * otherwise add new node to the list. 2644 */ 2645 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2646 uu_avl_insert(avl, node, idx); 2647 } else { 2648 nvlist_free(props); 2649 free(node); 2650 node = n; 2651 props = node->usn_nvl; 2652 } 2653 2654 /* Calculate/update width of USED/QUOTA fields */ 2655 if (cb->cb_nicenum) { 2656 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2657 prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2658 prop == ZFS_PROP_PROJECTUSED || 2659 prop == ZFS_PROP_PROJECTQUOTA) { 2660 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2661 } else { 2662 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2663 } 2664 } else { 2665 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2666 } 2667 sizelen = strlen(sizebuf); 2668 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2669 prop == ZFS_PROP_PROJECTUSED) { 2670 propname = "used"; 2671 if (!nvlist_exists(props, "quota")) 2672 (void) nvlist_add_uint64(props, "quota", 0); 2673 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2674 prop == ZFS_PROP_PROJECTQUOTA) { 2675 propname = "quota"; 2676 if (!nvlist_exists(props, "used")) 2677 (void) nvlist_add_uint64(props, "used", 0); 2678 } else if (prop == ZFS_PROP_USEROBJUSED || 2679 prop == ZFS_PROP_GROUPOBJUSED || prop == ZFS_PROP_PROJECTOBJUSED) { 2680 propname = "objused"; 2681 if (!nvlist_exists(props, "objquota")) 2682 (void) nvlist_add_uint64(props, "objquota", 0); 2683 } else if (prop == ZFS_PROP_USEROBJQUOTA || 2684 prop == ZFS_PROP_GROUPOBJQUOTA || 2685 prop == ZFS_PROP_PROJECTOBJQUOTA) { 2686 propname = "objquota"; 2687 if (!nvlist_exists(props, "objused")) 2688 (void) nvlist_add_uint64(props, "objused", 0); 2689 } else { 2690 return (-1); 2691 } 2692 sizeidx = us_field_index(propname); 2693 if (sizelen > cb->cb_width[sizeidx]) 2694 cb->cb_width[sizeidx] = sizelen; 2695 2696 if (nvlist_add_uint64(props, propname, space) != 0) 2697 nomem(); 2698 2699 return (0); 2700 } 2701 2702 static void 2703 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2704 size_t *width, us_node_t *node) 2705 { 2706 nvlist_t *nvl = node->usn_nvl; 2707 char valstr[MAXNAMELEN]; 2708 boolean_t first = B_TRUE; 2709 int cfield = 0; 2710 int field; 2711 uint32_t ustype; 2712 2713 /* Check type */ 2714 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2715 if (!(ustype & types)) 2716 return; 2717 2718 while ((field = fields[cfield]) != USFIELD_LAST) { 2719 nvpair_t *nvp = NULL; 2720 data_type_t type; 2721 uint32_t val32; 2722 uint64_t val64; 2723 char *strval = "-"; 2724 2725 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2726 if (strcmp(nvpair_name(nvp), 2727 us_field_names[field]) == 0) 2728 break; 2729 } 2730 2731 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp); 2732 switch (type) { 2733 case DATA_TYPE_UINT32: 2734 (void) nvpair_value_uint32(nvp, &val32); 2735 break; 2736 case DATA_TYPE_UINT64: 2737 (void) nvpair_value_uint64(nvp, &val64); 2738 break; 2739 case DATA_TYPE_STRING: 2740 (void) nvpair_value_string(nvp, &strval); 2741 break; 2742 case DATA_TYPE_UNKNOWN: 2743 break; 2744 default: 2745 (void) fprintf(stderr, "invalid data type\n"); 2746 } 2747 2748 switch (field) { 2749 case USFIELD_TYPE: 2750 if (type == DATA_TYPE_UINT32) 2751 strval = (char *)us_type2str(val32); 2752 break; 2753 case USFIELD_NAME: 2754 if (type == DATA_TYPE_UINT64) { 2755 (void) sprintf(valstr, "%llu", val64); 2756 strval = valstr; 2757 } 2758 break; 2759 case USFIELD_USED: 2760 case USFIELD_QUOTA: 2761 case USFIELD_OBJUSED: 2762 case USFIELD_OBJQUOTA: 2763 if (type == DATA_TYPE_UINT64) { 2764 if (parsable) { 2765 (void) sprintf(valstr, "%llu", val64); 2766 } else { 2767 zfs_nicenum(val64, valstr, 2768 sizeof (valstr)); 2769 } 2770 if ((field == USFIELD_QUOTA || 2771 field == USFIELD_OBJQUOTA) && 2772 strcmp(valstr, "0") == 0) 2773 strval = "none"; 2774 else 2775 strval = valstr; 2776 } 2777 break; 2778 } 2779 2780 if (!first) { 2781 if (scripted) 2782 (void) printf("\t"); 2783 else 2784 (void) printf(" "); 2785 } 2786 if (scripted) 2787 (void) printf("%s", strval); 2788 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2789 (void) printf("%-*s", width[field], strval); 2790 else 2791 (void) printf("%*s", width[field], strval); 2792 2793 first = B_FALSE; 2794 cfield++; 2795 } 2796 2797 (void) printf("\n"); 2798 } 2799 2800 static void 2801 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2802 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2803 { 2804 us_node_t *node; 2805 const char *col; 2806 int cfield = 0; 2807 int field; 2808 2809 if (!scripted) { 2810 boolean_t first = B_TRUE; 2811 2812 while ((field = fields[cfield]) != USFIELD_LAST) { 2813 col = gettext(us_field_hdr[field]); 2814 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2815 (void) printf(first ? "%-*s" : " %-*s", 2816 width[field], col); 2817 } else { 2818 (void) printf(first ? "%*s" : " %*s", 2819 width[field], col); 2820 } 2821 first = B_FALSE; 2822 cfield++; 2823 } 2824 (void) printf("\n"); 2825 } 2826 2827 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2828 print_us_node(scripted, parsable, fields, types, width, node); 2829 if (rmnode) 2830 nvlist_free(node->usn_nvl); 2831 } 2832 } 2833 2834 static int 2835 zfs_do_userspace(int argc, char **argv) 2836 { 2837 zfs_handle_t *zhp; 2838 zfs_userquota_prop_t p; 2839 uu_avl_pool_t *avl_pool; 2840 uu_avl_t *avl_tree; 2841 uu_avl_walk_t *walk; 2842 char *delim; 2843 char deffields[] = "type,name,used,quota,objused,objquota"; 2844 char *ofield = NULL; 2845 char *tfield = NULL; 2846 int cfield = 0; 2847 int fields[256]; 2848 int i; 2849 boolean_t scripted = B_FALSE; 2850 boolean_t prtnum = B_FALSE; 2851 boolean_t parsable = B_FALSE; 2852 boolean_t sid2posix = B_FALSE; 2853 int ret = 0; 2854 int c; 2855 zfs_sort_column_t *sortcol = NULL; 2856 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2857 us_cbdata_t cb; 2858 us_node_t *node; 2859 us_node_t *rmnode; 2860 uu_list_pool_t *listpool; 2861 uu_list_t *list; 2862 uu_avl_index_t idx = 0; 2863 uu_list_index_t idx2 = 0; 2864 2865 if (argc < 2) 2866 usage(B_FALSE); 2867 2868 if (strcmp(argv[0], "groupspace") == 0) { 2869 /* Toggle default group types */ 2870 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2871 } else if (strcmp(argv[0], "projectspace") == 0) { 2872 types = USTYPE_PROJ; 2873 prtnum = B_TRUE; 2874 } 2875 2876 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2877 switch (c) { 2878 case 'n': 2879 if (types == USTYPE_PROJ) { 2880 (void) fprintf(stderr, 2881 gettext("invalid option 'n'\n")); 2882 usage(B_FALSE); 2883 } 2884 prtnum = B_TRUE; 2885 break; 2886 case 'H': 2887 scripted = B_TRUE; 2888 break; 2889 case 'p': 2890 parsable = B_TRUE; 2891 break; 2892 case 'o': 2893 ofield = optarg; 2894 break; 2895 case 's': 2896 case 'S': 2897 if (zfs_add_sort_column(&sortcol, optarg, 2898 c == 's' ? B_FALSE : B_TRUE) != 0) { 2899 (void) fprintf(stderr, 2900 gettext("invalid field '%s'\n"), optarg); 2901 usage(B_FALSE); 2902 } 2903 break; 2904 case 't': 2905 if (types == USTYPE_PROJ) { 2906 (void) fprintf(stderr, 2907 gettext("invalid option 't'\n")); 2908 usage(B_FALSE); 2909 } 2910 tfield = optarg; 2911 break; 2912 case 'i': 2913 if (types == USTYPE_PROJ) { 2914 (void) fprintf(stderr, 2915 gettext("invalid option 'i'\n")); 2916 usage(B_FALSE); 2917 } 2918 sid2posix = B_TRUE; 2919 break; 2920 case ':': 2921 (void) fprintf(stderr, gettext("missing argument for " 2922 "'%c' option\n"), optopt); 2923 usage(B_FALSE); 2924 break; 2925 case '?': 2926 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2927 optopt); 2928 usage(B_FALSE); 2929 } 2930 } 2931 2932 argc -= optind; 2933 argv += optind; 2934 2935 if (argc < 1) { 2936 (void) fprintf(stderr, gettext("missing dataset name\n")); 2937 usage(B_FALSE); 2938 } 2939 if (argc > 1) { 2940 (void) fprintf(stderr, gettext("too many arguments\n")); 2941 usage(B_FALSE); 2942 } 2943 2944 /* Use default output fields if not specified using -o */ 2945 if (ofield == NULL) 2946 ofield = deffields; 2947 do { 2948 if ((delim = strchr(ofield, ',')) != NULL) 2949 *delim = '\0'; 2950 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2951 (void) fprintf(stderr, gettext("invalid type '%s' " 2952 "for -o option\n"), ofield); 2953 return (-1); 2954 } 2955 if (delim != NULL) 2956 ofield = delim + 1; 2957 } while (delim != NULL); 2958 fields[cfield] = USFIELD_LAST; 2959 2960 /* Override output types (-t option) */ 2961 if (tfield != NULL) { 2962 types = 0; 2963 2964 do { 2965 boolean_t found = B_FALSE; 2966 2967 if ((delim = strchr(tfield, ',')) != NULL) 2968 *delim = '\0'; 2969 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2970 i++) { 2971 if (strcmp(tfield, us_type_names[i]) == 0) { 2972 found = B_TRUE; 2973 types |= us_type_bits[i]; 2974 break; 2975 } 2976 } 2977 if (!found) { 2978 (void) fprintf(stderr, gettext("invalid type " 2979 "'%s' for -t option\n"), tfield); 2980 return (-1); 2981 } 2982 if (delim != NULL) 2983 tfield = delim + 1; 2984 } while (delim != NULL); 2985 } 2986 2987 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2988 return (1); 2989 2990 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2991 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2992 nomem(); 2993 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2994 nomem(); 2995 2996 /* Always add default sorting columns */ 2997 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2998 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2999 3000 cb.cb_sortcol = sortcol; 3001 cb.cb_numname = prtnum; 3002 cb.cb_nicenum = !parsable; 3003 cb.cb_avl_pool = avl_pool; 3004 cb.cb_avl = avl_tree; 3005 cb.cb_sid2posix = sid2posix; 3006 3007 for (i = 0; i < USFIELD_LAST; i++) 3008 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 3009 3010 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 3011 if ((zfs_prop_is_user(p) && 3012 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 3013 (zfs_prop_is_group(p) && 3014 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))) || 3015 (zfs_prop_is_project(p) && types != USTYPE_PROJ)) 3016 continue; 3017 3018 cb.cb_prop = p; 3019 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 3020 return (ret); 3021 } 3022 3023 /* Sort the list */ 3024 if ((node = uu_avl_first(avl_tree)) == NULL) 3025 return (0); 3026 3027 us_populated = B_TRUE; 3028 3029 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 3030 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 3031 list = uu_list_create(listpool, NULL, UU_DEFAULT); 3032 uu_list_node_init(node, &node->usn_listnode, listpool); 3033 3034 while (node != NULL) { 3035 rmnode = node; 3036 node = uu_avl_next(avl_tree, node); 3037 uu_avl_remove(avl_tree, rmnode); 3038 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 3039 uu_list_insert(list, rmnode, idx2); 3040 } 3041 3042 for (node = uu_list_first(list); node != NULL; 3043 node = uu_list_next(list, node)) { 3044 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 3045 3046 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 3047 uu_avl_insert(avl_tree, node, idx); 3048 } 3049 3050 uu_list_destroy(list); 3051 uu_list_pool_destroy(listpool); 3052 3053 /* Print and free node nvlist memory */ 3054 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 3055 cb.cb_avl); 3056 3057 zfs_free_sort_columns(sortcol); 3058 3059 /* Clean up the AVL tree */ 3060 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 3061 nomem(); 3062 3063 while ((node = uu_avl_walk_next(walk)) != NULL) { 3064 uu_avl_remove(cb.cb_avl, node); 3065 free(node); 3066 } 3067 3068 uu_avl_walk_end(walk); 3069 uu_avl_destroy(avl_tree); 3070 uu_avl_pool_destroy(avl_pool); 3071 3072 return (ret); 3073 } 3074 3075 /* 3076 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 3077 * [-t type[,...]] [filesystem|volume|snapshot] ... 3078 * 3079 * -H Scripted mode; elide headers and separate columns by tabs. 3080 * -p Display values in parsable (literal) format. 3081 * -r Recurse over all children. 3082 * -d Limit recursion by depth. 3083 * -o Control which fields to display. 3084 * -s Specify sort columns, descending order. 3085 * -S Specify sort columns, ascending order. 3086 * -t Control which object types to display. 3087 * 3088 * When given no arguments, list all filesystems in the system. 3089 * Otherwise, list the specified datasets, optionally recursing down them if 3090 * '-r' is specified. 3091 */ 3092 typedef struct list_cbdata { 3093 boolean_t cb_first; 3094 boolean_t cb_literal; 3095 boolean_t cb_scripted; 3096 zprop_list_t *cb_proplist; 3097 } list_cbdata_t; 3098 3099 /* 3100 * Given a list of columns to display, output appropriate headers for each one. 3101 */ 3102 static void 3103 print_header(list_cbdata_t *cb) 3104 { 3105 zprop_list_t *pl = cb->cb_proplist; 3106 char headerbuf[ZFS_MAXPROPLEN]; 3107 const char *header; 3108 int i; 3109 boolean_t first = B_TRUE; 3110 boolean_t right_justify; 3111 3112 for (; pl != NULL; pl = pl->pl_next) { 3113 if (!first) { 3114 (void) printf(" "); 3115 } else { 3116 first = B_FALSE; 3117 } 3118 3119 right_justify = B_FALSE; 3120 if (pl->pl_prop != ZPROP_INVAL) { 3121 header = zfs_prop_column_name(pl->pl_prop); 3122 right_justify = zfs_prop_align_right(pl->pl_prop); 3123 } else { 3124 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 3125 headerbuf[i] = toupper(pl->pl_user_prop[i]); 3126 headerbuf[i] = '\0'; 3127 header = headerbuf; 3128 } 3129 3130 if (pl->pl_next == NULL && !right_justify) 3131 (void) printf("%s", header); 3132 else if (right_justify) 3133 (void) printf("%*s", pl->pl_width, header); 3134 else 3135 (void) printf("%-*s", pl->pl_width, header); 3136 } 3137 3138 (void) printf("\n"); 3139 } 3140 3141 /* 3142 * Given a dataset and a list of fields, print out all the properties according 3143 * to the described layout. 3144 */ 3145 static void 3146 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 3147 { 3148 zprop_list_t *pl = cb->cb_proplist; 3149 boolean_t first = B_TRUE; 3150 char property[ZFS_MAXPROPLEN]; 3151 nvlist_t *userprops = zfs_get_user_props(zhp); 3152 nvlist_t *propval; 3153 char *propstr; 3154 boolean_t right_justify; 3155 3156 for (; pl != NULL; pl = pl->pl_next) { 3157 if (!first) { 3158 if (cb->cb_scripted) 3159 (void) printf("\t"); 3160 else 3161 (void) printf(" "); 3162 } else { 3163 first = B_FALSE; 3164 } 3165 3166 if (pl->pl_prop == ZFS_PROP_NAME) { 3167 (void) strlcpy(property, zfs_get_name(zhp), 3168 sizeof (property)); 3169 propstr = property; 3170 right_justify = zfs_prop_align_right(pl->pl_prop); 3171 } else if (pl->pl_prop != ZPROP_INVAL) { 3172 if (zfs_prop_get(zhp, pl->pl_prop, property, 3173 sizeof (property), NULL, NULL, 0, 3174 cb->cb_literal) != 0) 3175 propstr = "-"; 3176 else 3177 propstr = property; 3178 right_justify = zfs_prop_align_right(pl->pl_prop); 3179 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3180 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3181 property, sizeof (property), cb->cb_literal) != 0) 3182 propstr = "-"; 3183 else 3184 propstr = property; 3185 right_justify = B_TRUE; 3186 } else if (zfs_prop_written(pl->pl_user_prop)) { 3187 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3188 property, sizeof (property), cb->cb_literal) != 0) 3189 propstr = "-"; 3190 else 3191 propstr = property; 3192 right_justify = B_TRUE; 3193 } else { 3194 if (nvlist_lookup_nvlist(userprops, 3195 pl->pl_user_prop, &propval) != 0) 3196 propstr = "-"; 3197 else 3198 verify(nvlist_lookup_string(propval, 3199 ZPROP_VALUE, &propstr) == 0); 3200 right_justify = B_FALSE; 3201 } 3202 3203 /* 3204 * If this is being called in scripted mode, or if this is the 3205 * last column and it is left-justified, don't include a width 3206 * format specifier. 3207 */ 3208 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3209 (void) printf("%s", propstr); 3210 else if (right_justify) 3211 (void) printf("%*s", pl->pl_width, propstr); 3212 else 3213 (void) printf("%-*s", pl->pl_width, propstr); 3214 } 3215 3216 (void) printf("\n"); 3217 } 3218 3219 /* 3220 * Generic callback function to list a dataset or snapshot. 3221 */ 3222 static int 3223 list_callback(zfs_handle_t *zhp, void *data) 3224 { 3225 list_cbdata_t *cbp = data; 3226 3227 if (cbp->cb_first) { 3228 if (!cbp->cb_scripted) 3229 print_header(cbp); 3230 cbp->cb_first = B_FALSE; 3231 } 3232 3233 print_dataset(zhp, cbp); 3234 3235 return (0); 3236 } 3237 3238 static int 3239 zfs_do_list(int argc, char **argv) 3240 { 3241 int c; 3242 static char default_fields[] = 3243 "name,used,available,referenced,mountpoint"; 3244 int types = ZFS_TYPE_DATASET; 3245 boolean_t types_specified = B_FALSE; 3246 char *fields = NULL; 3247 list_cbdata_t cb = { 0 }; 3248 char *value; 3249 int limit = 0; 3250 int ret = 0; 3251 zfs_sort_column_t *sortcol = NULL; 3252 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3253 3254 /* check options */ 3255 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3256 switch (c) { 3257 case 'o': 3258 fields = optarg; 3259 break; 3260 case 'p': 3261 cb.cb_literal = B_TRUE; 3262 flags |= ZFS_ITER_LITERAL_PROPS; 3263 break; 3264 case 'd': 3265 limit = parse_depth(optarg, &flags); 3266 break; 3267 case 'r': 3268 flags |= ZFS_ITER_RECURSE; 3269 break; 3270 case 'H': 3271 cb.cb_scripted = B_TRUE; 3272 break; 3273 case 's': 3274 if (zfs_add_sort_column(&sortcol, optarg, 3275 B_FALSE) != 0) { 3276 (void) fprintf(stderr, 3277 gettext("invalid property '%s'\n"), optarg); 3278 usage(B_FALSE); 3279 } 3280 break; 3281 case 'S': 3282 if (zfs_add_sort_column(&sortcol, optarg, 3283 B_TRUE) != 0) { 3284 (void) fprintf(stderr, 3285 gettext("invalid property '%s'\n"), optarg); 3286 usage(B_FALSE); 3287 } 3288 break; 3289 case 't': 3290 types = 0; 3291 types_specified = B_TRUE; 3292 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3293 while (*optarg != '\0') { 3294 static char *type_subopts[] = { "filesystem", 3295 "volume", "snapshot", "snap", "bookmark", 3296 "all", NULL }; 3297 3298 switch (getsubopt(&optarg, type_subopts, 3299 &value)) { 3300 case 0: 3301 types |= ZFS_TYPE_FILESYSTEM; 3302 break; 3303 case 1: 3304 types |= ZFS_TYPE_VOLUME; 3305 break; 3306 case 2: 3307 case 3: 3308 types |= ZFS_TYPE_SNAPSHOT; 3309 break; 3310 case 4: 3311 types |= ZFS_TYPE_BOOKMARK; 3312 break; 3313 case 5: 3314 types = ZFS_TYPE_DATASET | 3315 ZFS_TYPE_BOOKMARK; 3316 break; 3317 default: 3318 (void) fprintf(stderr, 3319 gettext("invalid type '%s'\n"), 3320 value); 3321 usage(B_FALSE); 3322 } 3323 } 3324 break; 3325 case ':': 3326 (void) fprintf(stderr, gettext("missing argument for " 3327 "'%c' option\n"), optopt); 3328 usage(B_FALSE); 3329 break; 3330 case '?': 3331 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3332 optopt); 3333 usage(B_FALSE); 3334 } 3335 } 3336 3337 argc -= optind; 3338 argv += optind; 3339 3340 if (fields == NULL) 3341 fields = default_fields; 3342 3343 /* 3344 * If we are only going to list snapshot names and sort by name, 3345 * then we can use faster version. 3346 */ 3347 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3348 flags |= ZFS_ITER_SIMPLE; 3349 3350 /* 3351 * If "-o space" and no types were specified, don't display snapshots. 3352 */ 3353 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3354 types &= ~ZFS_TYPE_SNAPSHOT; 3355 3356 /* 3357 * If the user specifies '-o all', the zprop_get_list() doesn't 3358 * normally include the name of the dataset. For 'zfs list', we always 3359 * want this property to be first. 3360 */ 3361 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3362 != 0) 3363 usage(B_FALSE); 3364 3365 cb.cb_first = B_TRUE; 3366 3367 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3368 limit, list_callback, &cb); 3369 3370 zprop_free_list(cb.cb_proplist); 3371 zfs_free_sort_columns(sortcol); 3372 3373 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3374 (void) printf(gettext("no datasets available\n")); 3375 3376 return (ret); 3377 } 3378 3379 /* 3380 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3381 * zfs rename [-f] -p <fs | vol> <fs | vol> 3382 * zfs rename -r <snap> <snap> 3383 * 3384 * Renames the given dataset to another of the same type. 3385 * 3386 * The '-p' flag creates all the non-existing ancestors of the target first. 3387 */ 3388 /* ARGSUSED */ 3389 static int 3390 zfs_do_rename(int argc, char **argv) 3391 { 3392 zfs_handle_t *zhp; 3393 int c; 3394 int ret = 0; 3395 boolean_t recurse = B_FALSE; 3396 boolean_t parents = B_FALSE; 3397 boolean_t force_unmount = B_FALSE; 3398 3399 /* check options */ 3400 while ((c = getopt(argc, argv, "prf")) != -1) { 3401 switch (c) { 3402 case 'p': 3403 parents = B_TRUE; 3404 break; 3405 case 'r': 3406 recurse = B_TRUE; 3407 break; 3408 case 'f': 3409 force_unmount = B_TRUE; 3410 break; 3411 case '?': 3412 default: 3413 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3414 optopt); 3415 usage(B_FALSE); 3416 } 3417 } 3418 3419 argc -= optind; 3420 argv += optind; 3421 3422 /* check number of arguments */ 3423 if (argc < 1) { 3424 (void) fprintf(stderr, gettext("missing source dataset " 3425 "argument\n")); 3426 usage(B_FALSE); 3427 } 3428 if (argc < 2) { 3429 (void) fprintf(stderr, gettext("missing target dataset " 3430 "argument\n")); 3431 usage(B_FALSE); 3432 } 3433 if (argc > 2) { 3434 (void) fprintf(stderr, gettext("too many arguments\n")); 3435 usage(B_FALSE); 3436 } 3437 3438 if (recurse && parents) { 3439 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3440 "exclusive\n")); 3441 usage(B_FALSE); 3442 } 3443 3444 if (recurse && strchr(argv[0], '@') == 0) { 3445 (void) fprintf(stderr, gettext("source dataset for recursive " 3446 "rename must be a snapshot\n")); 3447 usage(B_FALSE); 3448 } 3449 3450 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3451 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3452 return (1); 3453 3454 /* If we were asked and the name looks good, try to create ancestors. */ 3455 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3456 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3457 zfs_close(zhp); 3458 return (1); 3459 } 3460 3461 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3462 3463 zfs_close(zhp); 3464 return (ret); 3465 } 3466 3467 /* 3468 * zfs promote <fs> 3469 * 3470 * Promotes the given clone fs to be the parent 3471 */ 3472 /* ARGSUSED */ 3473 static int 3474 zfs_do_promote(int argc, char **argv) 3475 { 3476 zfs_handle_t *zhp; 3477 int ret = 0; 3478 3479 /* check options */ 3480 if (argc > 1 && argv[1][0] == '-') { 3481 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3482 argv[1][1]); 3483 usage(B_FALSE); 3484 } 3485 3486 /* check number of arguments */ 3487 if (argc < 2) { 3488 (void) fprintf(stderr, gettext("missing clone filesystem" 3489 " argument\n")); 3490 usage(B_FALSE); 3491 } 3492 if (argc > 2) { 3493 (void) fprintf(stderr, gettext("too many arguments\n")); 3494 usage(B_FALSE); 3495 } 3496 3497 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3498 if (zhp == NULL) 3499 return (1); 3500 3501 ret = (zfs_promote(zhp) != 0); 3502 3503 3504 zfs_close(zhp); 3505 return (ret); 3506 } 3507 3508 /* 3509 * zfs rollback [-rRf] <snapshot> 3510 * 3511 * -r Delete any intervening snapshots before doing rollback 3512 * -R Delete any snapshots and their clones 3513 * -f ignored for backwards compatability 3514 * 3515 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3516 * since then and making it the active dataset. If more recent snapshots exist, 3517 * the command will complain unless the '-r' flag is given. 3518 */ 3519 typedef struct rollback_cbdata { 3520 uint64_t cb_create; 3521 boolean_t cb_first; 3522 int cb_doclones; 3523 char *cb_target; 3524 int cb_error; 3525 boolean_t cb_recurse; 3526 } rollback_cbdata_t; 3527 3528 static int 3529 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3530 { 3531 rollback_cbdata_t *cbp = data; 3532 3533 if (cbp->cb_first && cbp->cb_recurse) { 3534 (void) fprintf(stderr, gettext("cannot rollback to " 3535 "'%s': clones of previous snapshots exist\n"), 3536 cbp->cb_target); 3537 (void) fprintf(stderr, gettext("use '-R' to " 3538 "force deletion of the following clones and " 3539 "dependents:\n")); 3540 cbp->cb_first = 0; 3541 cbp->cb_error = 1; 3542 } 3543 3544 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3545 3546 zfs_close(zhp); 3547 return (0); 3548 } 3549 3550 /* 3551 * Report any snapshots more recent than the one specified. Used when '-r' is 3552 * not specified. We reuse this same callback for the snapshot dependents - if 3553 * 'cb_dependent' is set, then this is a dependent and we should report it 3554 * without checking the transaction group. 3555 */ 3556 static int 3557 rollback_check(zfs_handle_t *zhp, void *data) 3558 { 3559 rollback_cbdata_t *cbp = data; 3560 3561 if (cbp->cb_doclones) { 3562 zfs_close(zhp); 3563 return (0); 3564 } 3565 3566 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3567 if (cbp->cb_first && !cbp->cb_recurse) { 3568 (void) fprintf(stderr, gettext("cannot " 3569 "rollback to '%s': more recent snapshots " 3570 "or bookmarks exist\n"), 3571 cbp->cb_target); 3572 (void) fprintf(stderr, gettext("use '-r' to " 3573 "force deletion of the following " 3574 "snapshots and bookmarks:\n")); 3575 cbp->cb_first = 0; 3576 cbp->cb_error = 1; 3577 } 3578 3579 if (cbp->cb_recurse) { 3580 if (zfs_iter_dependents(zhp, B_TRUE, 3581 rollback_check_dependent, cbp) != 0) { 3582 zfs_close(zhp); 3583 return (-1); 3584 } 3585 } else { 3586 (void) fprintf(stderr, "%s\n", 3587 zfs_get_name(zhp)); 3588 } 3589 } 3590 zfs_close(zhp); 3591 return (0); 3592 } 3593 3594 static int 3595 zfs_do_rollback(int argc, char **argv) 3596 { 3597 int ret = 0; 3598 int c; 3599 boolean_t force = B_FALSE; 3600 rollback_cbdata_t cb = { 0 }; 3601 zfs_handle_t *zhp, *snap; 3602 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 3603 char *delim; 3604 3605 /* check options */ 3606 while ((c = getopt(argc, argv, "rRf")) != -1) { 3607 switch (c) { 3608 case 'r': 3609 cb.cb_recurse = 1; 3610 break; 3611 case 'R': 3612 cb.cb_recurse = 1; 3613 cb.cb_doclones = 1; 3614 break; 3615 case 'f': 3616 force = B_TRUE; 3617 break; 3618 case '?': 3619 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3620 optopt); 3621 usage(B_FALSE); 3622 } 3623 } 3624 3625 argc -= optind; 3626 argv += optind; 3627 3628 /* check number of arguments */ 3629 if (argc < 1) { 3630 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3631 usage(B_FALSE); 3632 } 3633 if (argc > 1) { 3634 (void) fprintf(stderr, gettext("too many arguments\n")); 3635 usage(B_FALSE); 3636 } 3637 3638 /* open the snapshot */ 3639 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3640 return (1); 3641 3642 /* open the parent dataset */ 3643 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3644 verify((delim = strrchr(parentname, '@')) != NULL); 3645 *delim = '\0'; 3646 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3647 zfs_close(snap); 3648 return (1); 3649 } 3650 3651 /* 3652 * Check for more recent snapshots and/or clones based on the presence 3653 * of '-r' and '-R'. 3654 */ 3655 cb.cb_target = argv[0]; 3656 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3657 cb.cb_first = B_TRUE; 3658 cb.cb_error = 0; 3659 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb)) != 0) 3660 goto out; 3661 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3662 goto out; 3663 3664 if ((ret = cb.cb_error) != 0) 3665 goto out; 3666 3667 /* 3668 * Rollback parent to the given snapshot. 3669 */ 3670 ret = zfs_rollback(zhp, snap, force); 3671 3672 out: 3673 zfs_close(snap); 3674 zfs_close(zhp); 3675 3676 if (ret == 0) 3677 return (0); 3678 else 3679 return (1); 3680 } 3681 3682 /* 3683 * zfs set property=value ... { fs | snap | vol } ... 3684 * 3685 * Sets the given properties for all datasets specified on the command line. 3686 */ 3687 3688 static int 3689 set_callback(zfs_handle_t *zhp, void *data) 3690 { 3691 nvlist_t *props = data; 3692 3693 if (zfs_prop_set_list(zhp, props) != 0) { 3694 switch (libzfs_errno(g_zfs)) { 3695 case EZFS_MOUNTFAILED: 3696 (void) fprintf(stderr, gettext("property may be set " 3697 "but unable to remount filesystem\n")); 3698 break; 3699 case EZFS_SHARENFSFAILED: 3700 (void) fprintf(stderr, gettext("property may be set " 3701 "but unable to reshare filesystem\n")); 3702 break; 3703 } 3704 return (1); 3705 } 3706 return (0); 3707 } 3708 3709 static int 3710 zfs_do_set(int argc, char **argv) 3711 { 3712 nvlist_t *props = NULL; 3713 int ds_start = -1; /* argv idx of first dataset arg */ 3714 int ret = 0; 3715 3716 /* check for options */ 3717 if (argc > 1 && argv[1][0] == '-') { 3718 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3719 argv[1][1]); 3720 usage(B_FALSE); 3721 } 3722 3723 /* check number of arguments */ 3724 if (argc < 2) { 3725 (void) fprintf(stderr, gettext("missing arguments\n")); 3726 usage(B_FALSE); 3727 } 3728 if (argc < 3) { 3729 if (strchr(argv[1], '=') == NULL) { 3730 (void) fprintf(stderr, gettext("missing property=value " 3731 "argument(s)\n")); 3732 } else { 3733 (void) fprintf(stderr, gettext("missing dataset " 3734 "name(s)\n")); 3735 } 3736 usage(B_FALSE); 3737 } 3738 3739 /* validate argument order: prop=val args followed by dataset args */ 3740 for (int i = 1; i < argc; i++) { 3741 if (strchr(argv[i], '=') != NULL) { 3742 if (ds_start > 0) { 3743 /* out-of-order prop=val argument */ 3744 (void) fprintf(stderr, gettext("invalid " 3745 "argument order\n"), i); 3746 usage(B_FALSE); 3747 } 3748 } else if (ds_start < 0) { 3749 ds_start = i; 3750 } 3751 } 3752 if (ds_start < 0) { 3753 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3754 usage(B_FALSE); 3755 } 3756 3757 /* Populate a list of property settings */ 3758 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3759 nomem(); 3760 for (int i = 1; i < ds_start; i++) { 3761 if (!parseprop(props, argv[i])) { 3762 ret = -1; 3763 goto error; 3764 } 3765 } 3766 3767 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3768 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3769 3770 error: 3771 nvlist_free(props); 3772 return (ret); 3773 } 3774 3775 typedef struct snap_cbdata { 3776 nvlist_t *sd_nvl; 3777 boolean_t sd_recursive; 3778 const char *sd_snapname; 3779 } snap_cbdata_t; 3780 3781 static int 3782 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3783 { 3784 snap_cbdata_t *sd = arg; 3785 char *name; 3786 int rv = 0; 3787 int error; 3788 3789 if (sd->sd_recursive && 3790 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3791 zfs_close(zhp); 3792 return (0); 3793 } 3794 3795 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3796 if (error == -1) 3797 nomem(); 3798 fnvlist_add_boolean(sd->sd_nvl, name); 3799 free(name); 3800 3801 if (sd->sd_recursive) 3802 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3803 zfs_close(zhp); 3804 return (rv); 3805 } 3806 3807 /* 3808 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3809 * 3810 * Creates a snapshot with the given name. While functionally equivalent to 3811 * 'zfs create', it is a separate command to differentiate intent. 3812 */ 3813 static int 3814 zfs_do_snapshot(int argc, char **argv) 3815 { 3816 int ret = 0; 3817 char c; 3818 nvlist_t *props; 3819 snap_cbdata_t sd = { 0 }; 3820 boolean_t multiple_snaps = B_FALSE; 3821 3822 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3823 nomem(); 3824 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3825 nomem(); 3826 3827 /* check options */ 3828 while ((c = getopt(argc, argv, "ro:")) != -1) { 3829 switch (c) { 3830 case 'o': 3831 if (!parseprop(props, optarg)) { 3832 nvlist_free(sd.sd_nvl); 3833 nvlist_free(props); 3834 return (1); 3835 } 3836 break; 3837 case 'r': 3838 sd.sd_recursive = B_TRUE; 3839 multiple_snaps = B_TRUE; 3840 break; 3841 case '?': 3842 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3843 optopt); 3844 goto usage; 3845 } 3846 } 3847 3848 argc -= optind; 3849 argv += optind; 3850 3851 /* check number of arguments */ 3852 if (argc < 1) { 3853 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3854 goto usage; 3855 } 3856 3857 if (argc > 1) 3858 multiple_snaps = B_TRUE; 3859 for (; argc > 0; argc--, argv++) { 3860 char *atp; 3861 zfs_handle_t *zhp; 3862 3863 atp = strchr(argv[0], '@'); 3864 if (atp == NULL) 3865 goto usage; 3866 *atp = '\0'; 3867 sd.sd_snapname = atp + 1; 3868 zhp = zfs_open(g_zfs, argv[0], 3869 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3870 if (zhp == NULL) 3871 goto usage; 3872 if (zfs_snapshot_cb(zhp, &sd) != 0) 3873 goto usage; 3874 } 3875 3876 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3877 nvlist_free(sd.sd_nvl); 3878 nvlist_free(props); 3879 if (ret != 0 && multiple_snaps) 3880 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3881 return (ret != 0); 3882 3883 usage: 3884 nvlist_free(sd.sd_nvl); 3885 nvlist_free(props); 3886 usage(B_FALSE); 3887 return (-1); 3888 } 3889 3890 /* 3891 * Send a backup stream to stdout. 3892 */ 3893 static int 3894 zfs_do_send(int argc, char **argv) 3895 { 3896 char *fromname = NULL; 3897 char *toname = NULL; 3898 char *resume_token = NULL; 3899 char *cp; 3900 zfs_handle_t *zhp; 3901 sendflags_t flags = { 0 }; 3902 int c, err; 3903 nvlist_t *dbgnv = NULL; 3904 boolean_t extraverbose = B_FALSE; 3905 3906 struct option long_options[] = { 3907 {"replicate", no_argument, NULL, 'R'}, 3908 {"props", no_argument, NULL, 'p'}, 3909 {"parsable", no_argument, NULL, 'P'}, 3910 {"dedup", no_argument, NULL, 'D'}, 3911 {"verbose", no_argument, NULL, 'v'}, 3912 {"dryrun", no_argument, NULL, 'n'}, 3913 {"large-block", no_argument, NULL, 'L'}, 3914 {"embed", no_argument, NULL, 'e'}, 3915 {"resume", required_argument, NULL, 't'}, 3916 {"compressed", no_argument, NULL, 'c'}, 3917 {"raw", no_argument, NULL, 'w'}, 3918 {"backup", no_argument, NULL, 'b'}, 3919 {"holds", no_argument, NULL, 'h'}, 3920 {0, 0, 0, 0} 3921 }; 3922 3923 /* check options */ 3924 while ((c = getopt_long(argc, argv, ":i:I:RDpvnPLeht:cwb", long_options, 3925 NULL)) != -1) { 3926 switch (c) { 3927 case 'i': 3928 if (fromname) 3929 usage(B_FALSE); 3930 fromname = optarg; 3931 break; 3932 case 'I': 3933 if (fromname) 3934 usage(B_FALSE); 3935 fromname = optarg; 3936 flags.doall = B_TRUE; 3937 break; 3938 case 'R': 3939 flags.replicate = B_TRUE; 3940 break; 3941 case 'p': 3942 flags.props = B_TRUE; 3943 break; 3944 case 'b': 3945 flags.backup = B_TRUE; 3946 break; 3947 case 'h': 3948 flags.holds = B_TRUE; 3949 break; 3950 case 'P': 3951 flags.parsable = B_TRUE; 3952 flags.verbose = B_TRUE; 3953 break; 3954 case 'v': 3955 if (flags.verbose) 3956 extraverbose = B_TRUE; 3957 flags.verbose = B_TRUE; 3958 flags.progress = B_TRUE; 3959 break; 3960 case 'D': 3961 flags.dedup = B_TRUE; 3962 break; 3963 case 'n': 3964 flags.dryrun = B_TRUE; 3965 break; 3966 case 'L': 3967 flags.largeblock = B_TRUE; 3968 break; 3969 case 'e': 3970 flags.embed_data = B_TRUE; 3971 break; 3972 case 't': 3973 resume_token = optarg; 3974 break; 3975 case 'c': 3976 flags.compress = B_TRUE; 3977 break; 3978 case 'w': 3979 flags.raw = B_TRUE; 3980 flags.compress = B_TRUE; 3981 flags.embed_data = B_TRUE; 3982 flags.largeblock = B_TRUE; 3983 break; 3984 case ':': 3985 /* 3986 * If a parameter was not passed, optopt contains the 3987 * value that would normally lead us into the 3988 * appropriate case statement. If it's > 256, then this 3989 * must be a longopt and we should look at argv to get 3990 * the string. Otherwise it's just the character, so we 3991 * should use it directly. 3992 */ 3993 if (optopt <= UINT8_MAX) { 3994 (void) fprintf(stderr, 3995 gettext("missing argument for '%c' " 3996 "option\n"), optopt); 3997 } else { 3998 (void) fprintf(stderr, 3999 gettext("missing argument for '%s' " 4000 "option\n"), argv[optind - 1]); 4001 } 4002 usage(B_FALSE); 4003 break; 4004 case '?': 4005 /*FALLTHROUGH*/ 4006 default: 4007 /* 4008 * If an invalid flag was passed, optopt contains the 4009 * character if it was a short flag, or 0 if it was a 4010 * longopt. 4011 */ 4012 if (optopt != 0) { 4013 (void) fprintf(stderr, 4014 gettext("invalid option '%c'\n"), optopt); 4015 } else { 4016 (void) fprintf(stderr, 4017 gettext("invalid option '%s'\n"), 4018 argv[optind - 1]); 4019 4020 } 4021 usage(B_FALSE); 4022 } 4023 } 4024 4025 argc -= optind; 4026 argv += optind; 4027 4028 if (resume_token != NULL) { 4029 if (fromname != NULL || flags.replicate || flags.props || 4030 flags.backup || flags.dedup) { 4031 (void) fprintf(stderr, 4032 gettext("invalid flags combined with -t\n")); 4033 usage(B_FALSE); 4034 } 4035 if (argc != 0) { 4036 (void) fprintf(stderr, gettext("no additional " 4037 "arguments are permitted with -t\n")); 4038 usage(B_FALSE); 4039 } 4040 } else { 4041 if (argc < 1) { 4042 (void) fprintf(stderr, 4043 gettext("missing snapshot argument\n")); 4044 usage(B_FALSE); 4045 } 4046 if (argc > 1) { 4047 (void) fprintf(stderr, gettext("too many arguments\n")); 4048 usage(B_FALSE); 4049 } 4050 } 4051 4052 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 4053 (void) fprintf(stderr, 4054 gettext("Error: Stream can not be written to a terminal.\n" 4055 "You must redirect standard output.\n")); 4056 return (1); 4057 } 4058 4059 if (resume_token != NULL) { 4060 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 4061 resume_token)); 4062 } 4063 4064 /* 4065 * Special case sending a filesystem, or from a bookmark. 4066 */ 4067 if (strchr(argv[0], '@') == NULL || 4068 (fromname && strchr(fromname, '#') != NULL)) { 4069 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 4070 enum lzc_send_flags lzc_flags = 0; 4071 4072 if (flags.replicate || flags.doall || flags.props || 4073 flags.backup || flags.dedup || flags.holds || 4074 flags.dryrun || flags.verbose || flags.progress) { 4075 (void) fprintf(stderr, 4076 gettext("Error: " 4077 "Unsupported flag with filesystem or bookmark.\n")); 4078 return (1); 4079 } 4080 4081 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 4082 if (zhp == NULL) 4083 return (1); 4084 4085 if (flags.largeblock) 4086 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 4087 if (flags.embed_data) 4088 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 4089 if (flags.compress) 4090 lzc_flags |= LZC_SEND_FLAG_COMPRESS; 4091 if (flags.raw) 4092 lzc_flags |= LZC_SEND_FLAG_RAW; 4093 4094 if (fromname != NULL && 4095 (fromname[0] == '#' || fromname[0] == '@')) { 4096 /* 4097 * Incremental source name begins with # or @. 4098 * Default to same fs as target. 4099 */ 4100 (void) strlcpy(frombuf, argv[0], sizeof (frombuf)); 4101 cp = strchr(frombuf, '@'); 4102 if (cp != NULL) 4103 *cp = '\0'; 4104 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 4105 fromname = frombuf; 4106 } 4107 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 4108 zfs_close(zhp); 4109 return (err != 0); 4110 } 4111 4112 cp = strchr(argv[0], '@'); 4113 *cp = '\0'; 4114 toname = cp + 1; 4115 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4116 if (zhp == NULL) 4117 return (1); 4118 4119 /* 4120 * If they specified the full path to the snapshot, chop off 4121 * everything except the short name of the snapshot, but special 4122 * case if they specify the origin. 4123 */ 4124 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 4125 char origin[ZFS_MAX_DATASET_NAME_LEN]; 4126 zprop_source_t src; 4127 4128 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 4129 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 4130 4131 if (strcmp(origin, fromname) == 0) { 4132 fromname = NULL; 4133 flags.fromorigin = B_TRUE; 4134 } else { 4135 *cp = '\0'; 4136 if (cp != fromname && strcmp(argv[0], fromname)) { 4137 (void) fprintf(stderr, 4138 gettext("incremental source must be " 4139 "in same filesystem\n")); 4140 usage(B_FALSE); 4141 } 4142 fromname = cp + 1; 4143 if (strchr(fromname, '@') || strchr(fromname, '/')) { 4144 (void) fprintf(stderr, 4145 gettext("invalid incremental source\n")); 4146 usage(B_FALSE); 4147 } 4148 } 4149 } 4150 4151 if (flags.replicate && fromname == NULL) 4152 flags.doall = B_TRUE; 4153 4154 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 4155 extraverbose ? &dbgnv : NULL); 4156 4157 if (extraverbose && dbgnv != NULL) { 4158 /* 4159 * dump_nvlist prints to stdout, but that's been 4160 * redirected to a file. Make it print to stderr 4161 * instead. 4162 */ 4163 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 4164 dump_nvlist(dbgnv, 0); 4165 nvlist_free(dbgnv); 4166 } 4167 zfs_close(zhp); 4168 4169 return (err != 0); 4170 } 4171 4172 /* 4173 * Restore a backup stream from stdin. 4174 */ 4175 static int 4176 zfs_do_receive(int argc, char **argv) 4177 { 4178 int c, err = 0; 4179 recvflags_t flags = { 0 }; 4180 boolean_t abort_resumable = B_FALSE; 4181 nvlist_t *props; 4182 4183 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4184 nomem(); 4185 4186 /* check options */ 4187 while ((c = getopt(argc, argv, ":o:x:dehnuvFsA")) != -1) { 4188 switch (c) { 4189 case 'o': 4190 if (!parseprop(props, optarg)) { 4191 nvlist_free(props); 4192 usage(B_FALSE); 4193 } 4194 break; 4195 case 'x': 4196 if (!parsepropname(props, optarg)) { 4197 nvlist_free(props); 4198 usage(B_FALSE); 4199 } 4200 break; 4201 case 'd': 4202 flags.isprefix = B_TRUE; 4203 break; 4204 case 'e': 4205 flags.isprefix = B_TRUE; 4206 flags.istail = B_TRUE; 4207 break; 4208 case 'h': 4209 flags.skipholds = B_TRUE; 4210 break; 4211 case 'n': 4212 flags.dryrun = B_TRUE; 4213 break; 4214 case 'u': 4215 flags.nomount = B_TRUE; 4216 break; 4217 case 'v': 4218 flags.verbose = B_TRUE; 4219 break; 4220 case 's': 4221 flags.resumable = B_TRUE; 4222 break; 4223 case 'F': 4224 flags.force = B_TRUE; 4225 break; 4226 case 'A': 4227 abort_resumable = B_TRUE; 4228 break; 4229 case ':': 4230 (void) fprintf(stderr, gettext("missing argument for " 4231 "'%c' option\n"), optopt); 4232 usage(B_FALSE); 4233 break; 4234 case '?': 4235 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4236 optopt); 4237 usage(B_FALSE); 4238 } 4239 } 4240 4241 argc -= optind; 4242 argv += optind; 4243 4244 /* check number of arguments */ 4245 if (argc < 1) { 4246 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4247 usage(B_FALSE); 4248 } 4249 if (argc > 1) { 4250 (void) fprintf(stderr, gettext("too many arguments\n")); 4251 usage(B_FALSE); 4252 } 4253 4254 if (abort_resumable) { 4255 if (flags.isprefix || flags.istail || flags.dryrun || 4256 flags.resumable || flags.nomount) { 4257 (void) fprintf(stderr, gettext("invalid option")); 4258 usage(B_FALSE); 4259 } 4260 4261 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4262 (void) snprintf(namebuf, sizeof (namebuf), 4263 "%s/%%recv", argv[0]); 4264 4265 if (zfs_dataset_exists(g_zfs, namebuf, 4266 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4267 zfs_handle_t *zhp = zfs_open(g_zfs, 4268 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4269 if (zhp == NULL) 4270 return (1); 4271 err = zfs_destroy(zhp, B_FALSE); 4272 } else { 4273 zfs_handle_t *zhp = zfs_open(g_zfs, 4274 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4275 if (zhp == NULL) 4276 usage(B_FALSE); 4277 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4278 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4279 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4280 (void) fprintf(stderr, 4281 gettext("'%s' does not have any " 4282 "resumable receive state to abort\n"), 4283 argv[0]); 4284 return (1); 4285 } 4286 err = zfs_destroy(zhp, B_FALSE); 4287 } 4288 4289 return (err != 0); 4290 } 4291 4292 if (isatty(STDIN_FILENO)) { 4293 (void) fprintf(stderr, 4294 gettext("Error: Backup stream can not be read " 4295 "from a terminal.\n" 4296 "You must redirect standard input.\n")); 4297 return (1); 4298 } 4299 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4300 4301 return (err != 0); 4302 } 4303 4304 /* 4305 * allow/unallow stuff 4306 */ 4307 /* copied from zfs/sys/dsl_deleg.h */ 4308 #define ZFS_DELEG_PERM_CREATE "create" 4309 #define ZFS_DELEG_PERM_DESTROY "destroy" 4310 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4311 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4312 #define ZFS_DELEG_PERM_CLONE "clone" 4313 #define ZFS_DELEG_PERM_PROMOTE "promote" 4314 #define ZFS_DELEG_PERM_RENAME "rename" 4315 #define ZFS_DELEG_PERM_MOUNT "mount" 4316 #define ZFS_DELEG_PERM_SHARE "share" 4317 #define ZFS_DELEG_PERM_SEND "send" 4318 #define ZFS_DELEG_PERM_RECEIVE "receive" 4319 #define ZFS_DELEG_PERM_ALLOW "allow" 4320 #define ZFS_DELEG_PERM_USERPROP "userprop" 4321 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4322 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4323 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4324 #define ZFS_DELEG_PERM_USERUSED "userused" 4325 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4326 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota" 4327 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota" 4328 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused" 4329 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused" 4330 4331 #define ZFS_DELEG_PERM_HOLD "hold" 4332 #define ZFS_DELEG_PERM_RELEASE "release" 4333 #define ZFS_DELEG_PERM_DIFF "diff" 4334 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4335 #define ZFS_DELEG_PERM_REMAP "remap" 4336 #define ZFS_DELEG_PERM_LOAD_KEY "load-key" 4337 #define ZFS_DELEG_PERM_CHANGE_KEY "change-key" 4338 4339 #define ZFS_DELEG_PERM_PROJECTUSED "projectused" 4340 #define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota" 4341 #define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused" 4342 #define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota" 4343 4344 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4345 4346 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4347 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4348 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4349 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4350 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4351 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4352 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4353 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4354 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4355 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4356 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4357 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4358 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4359 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4360 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4361 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4362 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4363 { ZFS_DELEG_PERM_REMAP, ZFS_DELEG_NOTE_REMAP }, 4364 { ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY }, 4365 { ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY }, 4366 4367 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4368 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4369 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4370 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4371 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4372 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA }, 4373 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED }, 4374 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA }, 4375 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED }, 4376 { ZFS_DELEG_PERM_PROJECTUSED, ZFS_DELEG_NOTE_PROJECTUSED }, 4377 { ZFS_DELEG_PERM_PROJECTQUOTA, ZFS_DELEG_NOTE_PROJECTQUOTA }, 4378 { ZFS_DELEG_PERM_PROJECTOBJUSED, ZFS_DELEG_NOTE_PROJECTOBJUSED }, 4379 { ZFS_DELEG_PERM_PROJECTOBJQUOTA, ZFS_DELEG_NOTE_PROJECTOBJQUOTA }, 4380 { NULL, ZFS_DELEG_NOTE_NONE } 4381 }; 4382 4383 /* permission structure */ 4384 typedef struct deleg_perm { 4385 zfs_deleg_who_type_t dp_who_type; 4386 const char *dp_name; 4387 boolean_t dp_local; 4388 boolean_t dp_descend; 4389 } deleg_perm_t; 4390 4391 /* */ 4392 typedef struct deleg_perm_node { 4393 deleg_perm_t dpn_perm; 4394 4395 uu_avl_node_t dpn_avl_node; 4396 } deleg_perm_node_t; 4397 4398 typedef struct fs_perm fs_perm_t; 4399 4400 /* permissions set */ 4401 typedef struct who_perm { 4402 zfs_deleg_who_type_t who_type; 4403 const char *who_name; /* id */ 4404 char who_ug_name[256]; /* user/group name */ 4405 fs_perm_t *who_fsperm; /* uplink */ 4406 4407 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4408 } who_perm_t; 4409 4410 /* */ 4411 typedef struct who_perm_node { 4412 who_perm_t who_perm; 4413 uu_avl_node_t who_avl_node; 4414 } who_perm_node_t; 4415 4416 typedef struct fs_perm_set fs_perm_set_t; 4417 /* fs permissions */ 4418 struct fs_perm { 4419 const char *fsp_name; 4420 4421 uu_avl_t *fsp_sc_avl; /* sets,create */ 4422 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4423 4424 fs_perm_set_t *fsp_set; /* uplink */ 4425 }; 4426 4427 /* */ 4428 typedef struct fs_perm_node { 4429 fs_perm_t fspn_fsperm; 4430 uu_avl_t *fspn_avl; 4431 4432 uu_list_node_t fspn_list_node; 4433 } fs_perm_node_t; 4434 4435 /* top level structure */ 4436 struct fs_perm_set { 4437 uu_list_pool_t *fsps_list_pool; 4438 uu_list_t *fsps_list; /* list of fs_perms */ 4439 4440 uu_avl_pool_t *fsps_named_set_avl_pool; 4441 uu_avl_pool_t *fsps_who_perm_avl_pool; 4442 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4443 }; 4444 4445 static inline const char * 4446 deleg_perm_type(zfs_deleg_note_t note) 4447 { 4448 /* subcommands */ 4449 switch (note) { 4450 /* SUBCOMMANDS */ 4451 /* OTHER */ 4452 case ZFS_DELEG_NOTE_GROUPQUOTA: 4453 case ZFS_DELEG_NOTE_GROUPUSED: 4454 case ZFS_DELEG_NOTE_USERPROP: 4455 case ZFS_DELEG_NOTE_USERQUOTA: 4456 case ZFS_DELEG_NOTE_USERUSED: 4457 case ZFS_DELEG_NOTE_USEROBJQUOTA: 4458 case ZFS_DELEG_NOTE_USEROBJUSED: 4459 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 4460 case ZFS_DELEG_NOTE_GROUPOBJUSED: 4461 case ZFS_DELEG_NOTE_PROJECTUSED: 4462 case ZFS_DELEG_NOTE_PROJECTQUOTA: 4463 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 4464 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 4465 /* other */ 4466 return (gettext("other")); 4467 default: 4468 return (gettext("subcommand")); 4469 } 4470 } 4471 4472 static int 4473 who_type2weight(zfs_deleg_who_type_t who_type) 4474 { 4475 int res; 4476 switch (who_type) { 4477 case ZFS_DELEG_NAMED_SET_SETS: 4478 case ZFS_DELEG_NAMED_SET: 4479 res = 0; 4480 break; 4481 case ZFS_DELEG_CREATE_SETS: 4482 case ZFS_DELEG_CREATE: 4483 res = 1; 4484 break; 4485 case ZFS_DELEG_USER_SETS: 4486 case ZFS_DELEG_USER: 4487 res = 2; 4488 break; 4489 case ZFS_DELEG_GROUP_SETS: 4490 case ZFS_DELEG_GROUP: 4491 res = 3; 4492 break; 4493 case ZFS_DELEG_EVERYONE_SETS: 4494 case ZFS_DELEG_EVERYONE: 4495 res = 4; 4496 break; 4497 default: 4498 res = -1; 4499 } 4500 4501 return (res); 4502 } 4503 4504 /* ARGSUSED */ 4505 static int 4506 who_perm_compare(const void *larg, const void *rarg, void *unused) 4507 { 4508 const who_perm_node_t *l = larg; 4509 const who_perm_node_t *r = rarg; 4510 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4511 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4512 int lweight = who_type2weight(ltype); 4513 int rweight = who_type2weight(rtype); 4514 int res = lweight - rweight; 4515 if (res == 0) 4516 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4517 ZFS_MAX_DELEG_NAME-1); 4518 4519 if (res == 0) 4520 return (0); 4521 if (res > 0) 4522 return (1); 4523 else 4524 return (-1); 4525 } 4526 4527 /* ARGSUSED */ 4528 static int 4529 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4530 { 4531 const deleg_perm_node_t *l = larg; 4532 const deleg_perm_node_t *r = rarg; 4533 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4534 ZFS_MAX_DELEG_NAME-1); 4535 4536 if (res == 0) 4537 return (0); 4538 4539 if (res > 0) 4540 return (1); 4541 else 4542 return (-1); 4543 } 4544 4545 static inline void 4546 fs_perm_set_init(fs_perm_set_t *fspset) 4547 { 4548 bzero(fspset, sizeof (fs_perm_set_t)); 4549 4550 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4551 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4552 NULL, UU_DEFAULT)) == NULL) 4553 nomem(); 4554 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4555 UU_DEFAULT)) == NULL) 4556 nomem(); 4557 4558 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4559 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4560 who_perm_node_t, who_avl_node), who_perm_compare, 4561 UU_DEFAULT)) == NULL) 4562 nomem(); 4563 4564 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4565 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4566 who_perm_node_t, who_avl_node), who_perm_compare, 4567 UU_DEFAULT)) == NULL) 4568 nomem(); 4569 4570 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4571 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4572 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4573 == NULL) 4574 nomem(); 4575 } 4576 4577 static inline void fs_perm_fini(fs_perm_t *); 4578 static inline void who_perm_fini(who_perm_t *); 4579 4580 static inline void 4581 fs_perm_set_fini(fs_perm_set_t *fspset) 4582 { 4583 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4584 4585 while (node != NULL) { 4586 fs_perm_node_t *next_node = 4587 uu_list_next(fspset->fsps_list, node); 4588 fs_perm_t *fsperm = &node->fspn_fsperm; 4589 fs_perm_fini(fsperm); 4590 uu_list_remove(fspset->fsps_list, node); 4591 free(node); 4592 node = next_node; 4593 } 4594 4595 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4596 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4597 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4598 } 4599 4600 static inline void 4601 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4602 const char *name) 4603 { 4604 deleg_perm->dp_who_type = type; 4605 deleg_perm->dp_name = name; 4606 } 4607 4608 static inline void 4609 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4610 zfs_deleg_who_type_t type, const char *name) 4611 { 4612 uu_avl_pool_t *pool; 4613 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4614 4615 bzero(who_perm, sizeof (who_perm_t)); 4616 4617 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4618 UU_DEFAULT)) == NULL) 4619 nomem(); 4620 4621 who_perm->who_type = type; 4622 who_perm->who_name = name; 4623 who_perm->who_fsperm = fsperm; 4624 } 4625 4626 static inline void 4627 who_perm_fini(who_perm_t *who_perm) 4628 { 4629 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4630 4631 while (node != NULL) { 4632 deleg_perm_node_t *next_node = 4633 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4634 4635 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4636 free(node); 4637 node = next_node; 4638 } 4639 4640 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4641 } 4642 4643 static inline void 4644 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4645 { 4646 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4647 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4648 4649 bzero(fsperm, sizeof (fs_perm_t)); 4650 4651 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4652 == NULL) 4653 nomem(); 4654 4655 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4656 == NULL) 4657 nomem(); 4658 4659 fsperm->fsp_set = fspset; 4660 fsperm->fsp_name = fsname; 4661 } 4662 4663 static inline void 4664 fs_perm_fini(fs_perm_t *fsperm) 4665 { 4666 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4667 while (node != NULL) { 4668 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4669 node); 4670 who_perm_t *who_perm = &node->who_perm; 4671 who_perm_fini(who_perm); 4672 uu_avl_remove(fsperm->fsp_sc_avl, node); 4673 free(node); 4674 node = next_node; 4675 } 4676 4677 node = uu_avl_first(fsperm->fsp_uge_avl); 4678 while (node != NULL) { 4679 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4680 node); 4681 who_perm_t *who_perm = &node->who_perm; 4682 who_perm_fini(who_perm); 4683 uu_avl_remove(fsperm->fsp_uge_avl, node); 4684 free(node); 4685 node = next_node; 4686 } 4687 4688 uu_avl_destroy(fsperm->fsp_sc_avl); 4689 uu_avl_destroy(fsperm->fsp_uge_avl); 4690 } 4691 4692 static void 4693 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4694 zfs_deleg_who_type_t who_type, const char *name, char locality) 4695 { 4696 uu_avl_index_t idx = 0; 4697 4698 deleg_perm_node_t *found_node = NULL; 4699 deleg_perm_t *deleg_perm = &node->dpn_perm; 4700 4701 deleg_perm_init(deleg_perm, who_type, name); 4702 4703 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4704 == NULL) 4705 uu_avl_insert(avl, node, idx); 4706 else { 4707 node = found_node; 4708 deleg_perm = &node->dpn_perm; 4709 } 4710 4711 4712 switch (locality) { 4713 case ZFS_DELEG_LOCAL: 4714 deleg_perm->dp_local = B_TRUE; 4715 break; 4716 case ZFS_DELEG_DESCENDENT: 4717 deleg_perm->dp_descend = B_TRUE; 4718 break; 4719 case ZFS_DELEG_NA: 4720 break; 4721 default: 4722 assert(B_FALSE); /* invalid locality */ 4723 } 4724 } 4725 4726 static inline int 4727 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4728 { 4729 nvpair_t *nvp = NULL; 4730 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4731 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4732 zfs_deleg_who_type_t who_type = who_perm->who_type; 4733 4734 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4735 const char *name = nvpair_name(nvp); 4736 data_type_t type = nvpair_type(nvp); 4737 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4738 deleg_perm_node_t *node = 4739 safe_malloc(sizeof (deleg_perm_node_t)); 4740 4741 assert(type == DATA_TYPE_BOOLEAN); 4742 4743 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4744 set_deleg_perm_node(avl, node, who_type, name, locality); 4745 } 4746 4747 return (0); 4748 } 4749 4750 static inline int 4751 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4752 { 4753 nvpair_t *nvp = NULL; 4754 fs_perm_set_t *fspset = fsperm->fsp_set; 4755 4756 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4757 nvlist_t *nvl2 = NULL; 4758 const char *name = nvpair_name(nvp); 4759 uu_avl_t *avl = NULL; 4760 uu_avl_pool_t *avl_pool = NULL; 4761 zfs_deleg_who_type_t perm_type = name[0]; 4762 char perm_locality = name[1]; 4763 const char *perm_name = name + 3; 4764 boolean_t is_set = B_TRUE; 4765 who_perm_t *who_perm = NULL; 4766 4767 assert('$' == name[2]); 4768 4769 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4770 return (-1); 4771 4772 switch (perm_type) { 4773 case ZFS_DELEG_CREATE: 4774 case ZFS_DELEG_CREATE_SETS: 4775 case ZFS_DELEG_NAMED_SET: 4776 case ZFS_DELEG_NAMED_SET_SETS: 4777 avl_pool = fspset->fsps_named_set_avl_pool; 4778 avl = fsperm->fsp_sc_avl; 4779 break; 4780 case ZFS_DELEG_USER: 4781 case ZFS_DELEG_USER_SETS: 4782 case ZFS_DELEG_GROUP: 4783 case ZFS_DELEG_GROUP_SETS: 4784 case ZFS_DELEG_EVERYONE: 4785 case ZFS_DELEG_EVERYONE_SETS: 4786 avl_pool = fspset->fsps_who_perm_avl_pool; 4787 avl = fsperm->fsp_uge_avl; 4788 break; 4789 4790 default: 4791 assert(!"unhandled zfs_deleg_who_type_t"); 4792 } 4793 4794 if (is_set) { 4795 who_perm_node_t *found_node = NULL; 4796 who_perm_node_t *node = safe_malloc( 4797 sizeof (who_perm_node_t)); 4798 who_perm = &node->who_perm; 4799 uu_avl_index_t idx = 0; 4800 4801 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4802 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4803 4804 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4805 == NULL) { 4806 if (avl == fsperm->fsp_uge_avl) { 4807 uid_t rid = 0; 4808 struct passwd *p = NULL; 4809 struct group *g = NULL; 4810 const char *nice_name = NULL; 4811 4812 switch (perm_type) { 4813 case ZFS_DELEG_USER_SETS: 4814 case ZFS_DELEG_USER: 4815 rid = atoi(perm_name); 4816 p = getpwuid(rid); 4817 if (p) 4818 nice_name = p->pw_name; 4819 break; 4820 case ZFS_DELEG_GROUP_SETS: 4821 case ZFS_DELEG_GROUP: 4822 rid = atoi(perm_name); 4823 g = getgrgid(rid); 4824 if (g) 4825 nice_name = g->gr_name; 4826 break; 4827 4828 default: 4829 break; 4830 } 4831 4832 if (nice_name != NULL) 4833 (void) strlcpy( 4834 node->who_perm.who_ug_name, 4835 nice_name, 256); 4836 } 4837 4838 uu_avl_insert(avl, node, idx); 4839 } else { 4840 node = found_node; 4841 who_perm = &node->who_perm; 4842 } 4843 } 4844 4845 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4846 } 4847 4848 return (0); 4849 } 4850 4851 static inline int 4852 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4853 { 4854 nvpair_t *nvp = NULL; 4855 uu_avl_index_t idx = 0; 4856 4857 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4858 nvlist_t *nvl2 = NULL; 4859 const char *fsname = nvpair_name(nvp); 4860 data_type_t type = nvpair_type(nvp); 4861 fs_perm_t *fsperm = NULL; 4862 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4863 if (node == NULL) 4864 nomem(); 4865 4866 fsperm = &node->fspn_fsperm; 4867 4868 assert(DATA_TYPE_NVLIST == type); 4869 4870 uu_list_node_init(node, &node->fspn_list_node, 4871 fspset->fsps_list_pool); 4872 4873 idx = uu_list_numnodes(fspset->fsps_list); 4874 fs_perm_init(fsperm, fspset, fsname); 4875 4876 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4877 return (-1); 4878 4879 (void) parse_fs_perm(fsperm, nvl2); 4880 4881 uu_list_insert(fspset->fsps_list, node, idx); 4882 } 4883 4884 return (0); 4885 } 4886 4887 static inline const char * 4888 deleg_perm_comment(zfs_deleg_note_t note) 4889 { 4890 const char *str = ""; 4891 4892 /* subcommands */ 4893 switch (note) { 4894 /* SUBCOMMANDS */ 4895 case ZFS_DELEG_NOTE_ALLOW: 4896 str = gettext("Must also have the permission that is being" 4897 "\n\t\t\t\tallowed"); 4898 break; 4899 case ZFS_DELEG_NOTE_CLONE: 4900 str = gettext("Must also have the 'create' ability and 'mount'" 4901 "\n\t\t\t\tability in the origin file system"); 4902 break; 4903 case ZFS_DELEG_NOTE_CREATE: 4904 str = gettext("Must also have the 'mount' ability"); 4905 break; 4906 case ZFS_DELEG_NOTE_DESTROY: 4907 str = gettext("Must also have the 'mount' ability"); 4908 break; 4909 case ZFS_DELEG_NOTE_DIFF: 4910 str = gettext("Allows lookup of paths within a dataset;" 4911 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4912 "\n\t\t\t\tin order to use zfs diff"); 4913 break; 4914 case ZFS_DELEG_NOTE_HOLD: 4915 str = gettext("Allows adding a user hold to a snapshot"); 4916 break; 4917 case ZFS_DELEG_NOTE_MOUNT: 4918 str = gettext("Allows mount/umount of ZFS datasets"); 4919 break; 4920 case ZFS_DELEG_NOTE_PROMOTE: 4921 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4922 " 'promote' ability in the origin file system"); 4923 break; 4924 case ZFS_DELEG_NOTE_RECEIVE: 4925 str = gettext("Must also have the 'mount' and 'create'" 4926 " ability"); 4927 break; 4928 case ZFS_DELEG_NOTE_RELEASE: 4929 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4930 "might destroy the snapshot"); 4931 break; 4932 case ZFS_DELEG_NOTE_RENAME: 4933 str = gettext("Must also have the 'mount' and 'create'" 4934 "\n\t\t\t\tability in the new parent"); 4935 break; 4936 case ZFS_DELEG_NOTE_ROLLBACK: 4937 str = gettext(""); 4938 break; 4939 case ZFS_DELEG_NOTE_SEND: 4940 str = gettext(""); 4941 break; 4942 case ZFS_DELEG_NOTE_SHARE: 4943 str = gettext("Allows sharing file systems over NFS or SMB" 4944 "\n\t\t\t\tprotocols"); 4945 break; 4946 case ZFS_DELEG_NOTE_SNAPSHOT: 4947 str = gettext(""); 4948 break; 4949 case ZFS_DELEG_NOTE_LOAD_KEY: 4950 str = gettext("Allows loading or unloading an encryption key"); 4951 break; 4952 case ZFS_DELEG_NOTE_CHANGE_KEY: 4953 str = gettext("Allows changing or adding an encryption key"); 4954 break; 4955 /* 4956 * case ZFS_DELEG_NOTE_VSCAN: 4957 * str = gettext(""); 4958 * break; 4959 */ 4960 /* OTHER */ 4961 case ZFS_DELEG_NOTE_GROUPQUOTA: 4962 str = gettext("Allows accessing any groupquota@... property"); 4963 break; 4964 case ZFS_DELEG_NOTE_GROUPUSED: 4965 str = gettext("Allows reading any groupused@... property"); 4966 break; 4967 case ZFS_DELEG_NOTE_USERPROP: 4968 str = gettext("Allows changing any user property"); 4969 break; 4970 case ZFS_DELEG_NOTE_USERQUOTA: 4971 str = gettext("Allows accessing any userquota@... property"); 4972 break; 4973 case ZFS_DELEG_NOTE_USERUSED: 4974 str = gettext("Allows reading any userused@... property"); 4975 break; 4976 case ZFS_DELEG_NOTE_USEROBJQUOTA: 4977 str = gettext("Allows accessing any userobjquota@... property"); 4978 break; 4979 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 4980 str = gettext("Allows accessing any \n\t\t\t\t" 4981 "groupobjquota@... property"); 4982 break; 4983 case ZFS_DELEG_NOTE_GROUPOBJUSED: 4984 str = gettext("Allows reading any groupobjused@... property"); 4985 break; 4986 case ZFS_DELEG_NOTE_USEROBJUSED: 4987 str = gettext("Allows reading any userobjused@... property"); 4988 break; 4989 case ZFS_DELEG_NOTE_PROJECTQUOTA: 4990 str = gettext("Allows accessing any projectquota@... property"); 4991 break; 4992 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 4993 str = gettext("Allows accessing any \n\t\t\t\t" 4994 "projectobjquota@... property"); 4995 break; 4996 case ZFS_DELEG_NOTE_PROJECTUSED: 4997 str = gettext("Allows reading any projectused@... property"); 4998 break; 4999 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 5000 str = gettext("Allows accessing any \n\t\t\t\t" 5001 "projectobjused@... property"); 5002 break; 5003 /* other */ 5004 default: 5005 str = ""; 5006 } 5007 5008 return (str); 5009 } 5010 5011 struct allow_opts { 5012 boolean_t local; 5013 boolean_t descend; 5014 boolean_t user; 5015 boolean_t group; 5016 boolean_t everyone; 5017 boolean_t create; 5018 boolean_t set; 5019 boolean_t recursive; /* unallow only */ 5020 boolean_t prt_usage; 5021 5022 boolean_t prt_perms; 5023 char *who; 5024 char *perms; 5025 const char *dataset; 5026 }; 5027 5028 static inline int 5029 prop_cmp(const void *a, const void *b) 5030 { 5031 const char *str1 = *(const char **)a; 5032 const char *str2 = *(const char **)b; 5033 return (strcmp(str1, str2)); 5034 } 5035 5036 static void 5037 allow_usage(boolean_t un, boolean_t requested, const char *msg) 5038 { 5039 const char *opt_desc[] = { 5040 "-h", gettext("show this help message and exit"), 5041 "-l", gettext("set permission locally"), 5042 "-d", gettext("set permission for descents"), 5043 "-u", gettext("set permission for user"), 5044 "-g", gettext("set permission for group"), 5045 "-e", gettext("set permission for everyone"), 5046 "-c", gettext("set create time permission"), 5047 "-s", gettext("define permission set"), 5048 /* unallow only */ 5049 "-r", gettext("remove permissions recursively"), 5050 }; 5051 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 5052 size_t allow_size = unallow_size - 2; 5053 const char *props[ZFS_NUM_PROPS]; 5054 int i; 5055 size_t count = 0; 5056 FILE *fp = requested ? stdout : stderr; 5057 zprop_desc_t *pdtbl = zfs_prop_get_table(); 5058 const char *fmt = gettext("%-16s %-14s\t%s\n"); 5059 5060 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 5061 HELP_ALLOW)); 5062 (void) fprintf(fp, gettext("Options:\n")); 5063 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 5064 const char *opt = opt_desc[i++]; 5065 const char *optdsc = opt_desc[i]; 5066 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 5067 } 5068 5069 (void) fprintf(fp, gettext("\nThe following permissions are " 5070 "supported:\n\n")); 5071 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 5072 gettext("NOTES")); 5073 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 5074 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 5075 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 5076 const char *perm_type = deleg_perm_type(perm_note); 5077 const char *perm_comment = deleg_perm_comment(perm_note); 5078 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 5079 } 5080 5081 for (i = 0; i < ZFS_NUM_PROPS; i++) { 5082 zprop_desc_t *pd = &pdtbl[i]; 5083 if (pd->pd_visible != B_TRUE) 5084 continue; 5085 5086 if (pd->pd_attr == PROP_READONLY) 5087 continue; 5088 5089 props[count++] = pd->pd_name; 5090 } 5091 props[count] = NULL; 5092 5093 qsort(props, count, sizeof (char *), prop_cmp); 5094 5095 for (i = 0; i < count; i++) 5096 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 5097 5098 if (msg != NULL) 5099 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 5100 5101 exit(requested ? 0 : 2); 5102 } 5103 5104 static inline const char * 5105 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 5106 char **permsp) 5107 { 5108 if (un && argc == expected_argc - 1) 5109 *permsp = NULL; 5110 else if (argc == expected_argc) 5111 *permsp = argv[argc - 2]; 5112 else 5113 allow_usage(un, B_FALSE, 5114 gettext("wrong number of parameters\n")); 5115 5116 return (argv[argc - 1]); 5117 } 5118 5119 static void 5120 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 5121 { 5122 int uge_sum = opts->user + opts->group + opts->everyone; 5123 int csuge_sum = opts->create + opts->set + uge_sum; 5124 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 5125 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 5126 5127 if (uge_sum > 1) 5128 allow_usage(un, B_FALSE, 5129 gettext("-u, -g, and -e are mutually exclusive\n")); 5130 5131 if (opts->prt_usage) { 5132 if (argc == 0 && all_sum == 0) 5133 allow_usage(un, B_TRUE, NULL); 5134 else 5135 usage(B_FALSE); 5136 } 5137 5138 if (opts->set) { 5139 if (csuge_sum > 1) 5140 allow_usage(un, B_FALSE, 5141 gettext("invalid options combined with -s\n")); 5142 5143 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5144 if (argv[0][0] != '@') 5145 allow_usage(un, B_FALSE, 5146 gettext("invalid set name: missing '@' prefix\n")); 5147 opts->who = argv[0]; 5148 } else if (opts->create) { 5149 if (ldcsuge_sum > 1) 5150 allow_usage(un, B_FALSE, 5151 gettext("invalid options combined with -c\n")); 5152 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5153 } else if (opts->everyone) { 5154 if (csuge_sum > 1) 5155 allow_usage(un, B_FALSE, 5156 gettext("invalid options combined with -e\n")); 5157 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5158 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 5159 == 0) { 5160 opts->everyone = B_TRUE; 5161 argc--; 5162 argv++; 5163 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5164 } else if (argc == 1 && !un) { 5165 opts->prt_perms = B_TRUE; 5166 opts->dataset = argv[argc-1]; 5167 } else { 5168 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5169 opts->who = argv[0]; 5170 } 5171 5172 if (!opts->local && !opts->descend) { 5173 opts->local = B_TRUE; 5174 opts->descend = B_TRUE; 5175 } 5176 } 5177 5178 static void 5179 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 5180 const char *who, char *perms, nvlist_t *top_nvl) 5181 { 5182 int i; 5183 char ld[2] = { '\0', '\0' }; 5184 char who_buf[MAXNAMELEN + 32]; 5185 char base_type = '\0'; 5186 char set_type = '\0'; 5187 nvlist_t *base_nvl = NULL; 5188 nvlist_t *set_nvl = NULL; 5189 nvlist_t *nvl; 5190 5191 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 5192 nomem(); 5193 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 5194 nomem(); 5195 5196 switch (type) { 5197 case ZFS_DELEG_NAMED_SET_SETS: 5198 case ZFS_DELEG_NAMED_SET: 5199 set_type = ZFS_DELEG_NAMED_SET_SETS; 5200 base_type = ZFS_DELEG_NAMED_SET; 5201 ld[0] = ZFS_DELEG_NA; 5202 break; 5203 case ZFS_DELEG_CREATE_SETS: 5204 case ZFS_DELEG_CREATE: 5205 set_type = ZFS_DELEG_CREATE_SETS; 5206 base_type = ZFS_DELEG_CREATE; 5207 ld[0] = ZFS_DELEG_NA; 5208 break; 5209 case ZFS_DELEG_USER_SETS: 5210 case ZFS_DELEG_USER: 5211 set_type = ZFS_DELEG_USER_SETS; 5212 base_type = ZFS_DELEG_USER; 5213 if (local) 5214 ld[0] = ZFS_DELEG_LOCAL; 5215 if (descend) 5216 ld[1] = ZFS_DELEG_DESCENDENT; 5217 break; 5218 case ZFS_DELEG_GROUP_SETS: 5219 case ZFS_DELEG_GROUP: 5220 set_type = ZFS_DELEG_GROUP_SETS; 5221 base_type = ZFS_DELEG_GROUP; 5222 if (local) 5223 ld[0] = ZFS_DELEG_LOCAL; 5224 if (descend) 5225 ld[1] = ZFS_DELEG_DESCENDENT; 5226 break; 5227 case ZFS_DELEG_EVERYONE_SETS: 5228 case ZFS_DELEG_EVERYONE: 5229 set_type = ZFS_DELEG_EVERYONE_SETS; 5230 base_type = ZFS_DELEG_EVERYONE; 5231 if (local) 5232 ld[0] = ZFS_DELEG_LOCAL; 5233 if (descend) 5234 ld[1] = ZFS_DELEG_DESCENDENT; 5235 break; 5236 5237 default: 5238 assert(set_type != '\0' && base_type != '\0'); 5239 } 5240 5241 if (perms != NULL) { 5242 char *curr = perms; 5243 char *end = curr + strlen(perms); 5244 5245 while (curr < end) { 5246 char *delim = strchr(curr, ','); 5247 if (delim == NULL) 5248 delim = end; 5249 else 5250 *delim = '\0'; 5251 5252 if (curr[0] == '@') 5253 nvl = set_nvl; 5254 else 5255 nvl = base_nvl; 5256 5257 (void) nvlist_add_boolean(nvl, curr); 5258 if (delim != end) 5259 *delim = ','; 5260 curr = delim + 1; 5261 } 5262 5263 for (i = 0; i < 2; i++) { 5264 char locality = ld[i]; 5265 if (locality == 0) 5266 continue; 5267 5268 if (!nvlist_empty(base_nvl)) { 5269 if (who != NULL) 5270 (void) snprintf(who_buf, 5271 sizeof (who_buf), "%c%c$%s", 5272 base_type, locality, who); 5273 else 5274 (void) snprintf(who_buf, 5275 sizeof (who_buf), "%c%c$", 5276 base_type, locality); 5277 5278 (void) nvlist_add_nvlist(top_nvl, who_buf, 5279 base_nvl); 5280 } 5281 5282 5283 if (!nvlist_empty(set_nvl)) { 5284 if (who != NULL) 5285 (void) snprintf(who_buf, 5286 sizeof (who_buf), "%c%c$%s", 5287 set_type, locality, who); 5288 else 5289 (void) snprintf(who_buf, 5290 sizeof (who_buf), "%c%c$", 5291 set_type, locality); 5292 5293 (void) nvlist_add_nvlist(top_nvl, who_buf, 5294 set_nvl); 5295 } 5296 } 5297 } else { 5298 for (i = 0; i < 2; i++) { 5299 char locality = ld[i]; 5300 if (locality == 0) 5301 continue; 5302 5303 if (who != NULL) 5304 (void) snprintf(who_buf, sizeof (who_buf), 5305 "%c%c$%s", base_type, locality, who); 5306 else 5307 (void) snprintf(who_buf, sizeof (who_buf), 5308 "%c%c$", base_type, locality); 5309 (void) nvlist_add_boolean(top_nvl, who_buf); 5310 5311 if (who != NULL) 5312 (void) snprintf(who_buf, sizeof (who_buf), 5313 "%c%c$%s", set_type, locality, who); 5314 else 5315 (void) snprintf(who_buf, sizeof (who_buf), 5316 "%c%c$", set_type, locality); 5317 (void) nvlist_add_boolean(top_nvl, who_buf); 5318 } 5319 } 5320 } 5321 5322 static int 5323 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5324 { 5325 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5326 nomem(); 5327 5328 if (opts->set) { 5329 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5330 opts->descend, opts->who, opts->perms, *nvlp); 5331 } else if (opts->create) { 5332 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5333 opts->descend, NULL, opts->perms, *nvlp); 5334 } else if (opts->everyone) { 5335 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5336 opts->descend, NULL, opts->perms, *nvlp); 5337 } else { 5338 char *curr = opts->who; 5339 char *end = curr + strlen(curr); 5340 5341 while (curr < end) { 5342 const char *who; 5343 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5344 char *endch; 5345 char *delim = strchr(curr, ','); 5346 char errbuf[256]; 5347 char id[64]; 5348 struct passwd *p = NULL; 5349 struct group *g = NULL; 5350 5351 uid_t rid; 5352 if (delim == NULL) 5353 delim = end; 5354 else 5355 *delim = '\0'; 5356 5357 rid = (uid_t)strtol(curr, &endch, 0); 5358 if (opts->user) { 5359 who_type = ZFS_DELEG_USER; 5360 if (*endch != '\0') 5361 p = getpwnam(curr); 5362 else 5363 p = getpwuid(rid); 5364 5365 if (p != NULL) 5366 rid = p->pw_uid; 5367 else { 5368 (void) snprintf(errbuf, 256, gettext( 5369 "invalid user %s"), curr); 5370 allow_usage(un, B_TRUE, errbuf); 5371 } 5372 } else if (opts->group) { 5373 who_type = ZFS_DELEG_GROUP; 5374 if (*endch != '\0') 5375 g = getgrnam(curr); 5376 else 5377 g = getgrgid(rid); 5378 5379 if (g != NULL) 5380 rid = g->gr_gid; 5381 else { 5382 (void) snprintf(errbuf, 256, gettext( 5383 "invalid group %s"), curr); 5384 allow_usage(un, B_TRUE, errbuf); 5385 } 5386 } else { 5387 if (*endch != '\0') { 5388 p = getpwnam(curr); 5389 } else { 5390 p = getpwuid(rid); 5391 } 5392 5393 if (p == NULL) { 5394 if (*endch != '\0') { 5395 g = getgrnam(curr); 5396 } else { 5397 g = getgrgid(rid); 5398 } 5399 } 5400 5401 if (p != NULL) { 5402 who_type = ZFS_DELEG_USER; 5403 rid = p->pw_uid; 5404 } else if (g != NULL) { 5405 who_type = ZFS_DELEG_GROUP; 5406 rid = g->gr_gid; 5407 } else { 5408 (void) snprintf(errbuf, 256, gettext( 5409 "invalid user/group %s"), curr); 5410 allow_usage(un, B_TRUE, errbuf); 5411 } 5412 } 5413 5414 (void) sprintf(id, "%u", rid); 5415 who = id; 5416 5417 store_allow_perm(who_type, opts->local, 5418 opts->descend, who, opts->perms, *nvlp); 5419 curr = delim + 1; 5420 } 5421 } 5422 5423 return (0); 5424 } 5425 5426 static void 5427 print_set_creat_perms(uu_avl_t *who_avl) 5428 { 5429 const char *sc_title[] = { 5430 gettext("Permission sets:\n"), 5431 gettext("Create time permissions:\n"), 5432 NULL 5433 }; 5434 const char **title_ptr = sc_title; 5435 who_perm_node_t *who_node = NULL; 5436 int prev_weight = -1; 5437 5438 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5439 who_node = uu_avl_next(who_avl, who_node)) { 5440 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5441 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5442 const char *who_name = who_node->who_perm.who_name; 5443 int weight = who_type2weight(who_type); 5444 boolean_t first = B_TRUE; 5445 deleg_perm_node_t *deleg_node; 5446 5447 if (prev_weight != weight) { 5448 (void) printf(*title_ptr++); 5449 prev_weight = weight; 5450 } 5451 5452 if (who_name == NULL || strnlen(who_name, 1) == 0) 5453 (void) printf("\t"); 5454 else 5455 (void) printf("\t%s ", who_name); 5456 5457 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5458 deleg_node = uu_avl_next(avl, deleg_node)) { 5459 if (first) { 5460 (void) printf("%s", 5461 deleg_node->dpn_perm.dp_name); 5462 first = B_FALSE; 5463 } else 5464 (void) printf(",%s", 5465 deleg_node->dpn_perm.dp_name); 5466 } 5467 5468 (void) printf("\n"); 5469 } 5470 } 5471 5472 static void 5473 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5474 const char *title) 5475 { 5476 who_perm_node_t *who_node = NULL; 5477 boolean_t prt_title = B_TRUE; 5478 uu_avl_walk_t *walk; 5479 5480 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5481 nomem(); 5482 5483 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5484 const char *who_name = who_node->who_perm.who_name; 5485 const char *nice_who_name = who_node->who_perm.who_ug_name; 5486 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5487 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5488 char delim = ' '; 5489 deleg_perm_node_t *deleg_node; 5490 boolean_t prt_who = B_TRUE; 5491 5492 for (deleg_node = uu_avl_first(avl); 5493 deleg_node != NULL; 5494 deleg_node = uu_avl_next(avl, deleg_node)) { 5495 if (local != deleg_node->dpn_perm.dp_local || 5496 descend != deleg_node->dpn_perm.dp_descend) 5497 continue; 5498 5499 if (prt_who) { 5500 const char *who = NULL; 5501 if (prt_title) { 5502 prt_title = B_FALSE; 5503 (void) printf(title); 5504 } 5505 5506 switch (who_type) { 5507 case ZFS_DELEG_USER_SETS: 5508 case ZFS_DELEG_USER: 5509 who = gettext("user"); 5510 if (nice_who_name) 5511 who_name = nice_who_name; 5512 break; 5513 case ZFS_DELEG_GROUP_SETS: 5514 case ZFS_DELEG_GROUP: 5515 who = gettext("group"); 5516 if (nice_who_name) 5517 who_name = nice_who_name; 5518 break; 5519 case ZFS_DELEG_EVERYONE_SETS: 5520 case ZFS_DELEG_EVERYONE: 5521 who = gettext("everyone"); 5522 who_name = NULL; 5523 break; 5524 5525 default: 5526 assert(who != NULL); 5527 } 5528 5529 prt_who = B_FALSE; 5530 if (who_name == NULL) 5531 (void) printf("\t%s", who); 5532 else 5533 (void) printf("\t%s %s", who, who_name); 5534 } 5535 5536 (void) printf("%c%s", delim, 5537 deleg_node->dpn_perm.dp_name); 5538 delim = ','; 5539 } 5540 5541 if (!prt_who) 5542 (void) printf("\n"); 5543 } 5544 5545 uu_avl_walk_end(walk); 5546 } 5547 5548 static void 5549 print_fs_perms(fs_perm_set_t *fspset) 5550 { 5551 fs_perm_node_t *node = NULL; 5552 char buf[MAXNAMELEN + 32]; 5553 const char *dsname = buf; 5554 5555 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5556 node = uu_list_next(fspset->fsps_list, node)) { 5557 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5558 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5559 int left = 0; 5560 5561 (void) snprintf(buf, sizeof (buf), 5562 gettext("---- Permissions on %s "), 5563 node->fspn_fsperm.fsp_name); 5564 (void) printf(dsname); 5565 left = 70 - strlen(buf); 5566 while (left-- > 0) 5567 (void) printf("-"); 5568 (void) printf("\n"); 5569 5570 print_set_creat_perms(sc_avl); 5571 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5572 gettext("Local permissions:\n")); 5573 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5574 gettext("Descendent permissions:\n")); 5575 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5576 gettext("Local+Descendent permissions:\n")); 5577 } 5578 } 5579 5580 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5581 5582 struct deleg_perms { 5583 boolean_t un; 5584 nvlist_t *nvl; 5585 }; 5586 5587 static int 5588 set_deleg_perms(zfs_handle_t *zhp, void *data) 5589 { 5590 struct deleg_perms *perms = (struct deleg_perms *)data; 5591 zfs_type_t zfs_type = zfs_get_type(zhp); 5592 5593 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5594 return (0); 5595 5596 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5597 } 5598 5599 static int 5600 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5601 { 5602 zfs_handle_t *zhp; 5603 nvlist_t *perm_nvl = NULL; 5604 nvlist_t *update_perm_nvl = NULL; 5605 int error = 1; 5606 int c; 5607 struct allow_opts opts = { 0 }; 5608 5609 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5610 5611 /* check opts */ 5612 while ((c = getopt(argc, argv, optstr)) != -1) { 5613 switch (c) { 5614 case 'l': 5615 opts.local = B_TRUE; 5616 break; 5617 case 'd': 5618 opts.descend = B_TRUE; 5619 break; 5620 case 'u': 5621 opts.user = B_TRUE; 5622 break; 5623 case 'g': 5624 opts.group = B_TRUE; 5625 break; 5626 case 'e': 5627 opts.everyone = B_TRUE; 5628 break; 5629 case 's': 5630 opts.set = B_TRUE; 5631 break; 5632 case 'c': 5633 opts.create = B_TRUE; 5634 break; 5635 case 'r': 5636 opts.recursive = B_TRUE; 5637 break; 5638 case ':': 5639 (void) fprintf(stderr, gettext("missing argument for " 5640 "'%c' option\n"), optopt); 5641 usage(B_FALSE); 5642 break; 5643 case 'h': 5644 opts.prt_usage = B_TRUE; 5645 break; 5646 case '?': 5647 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5648 optopt); 5649 usage(B_FALSE); 5650 } 5651 } 5652 5653 argc -= optind; 5654 argv += optind; 5655 5656 /* check arguments */ 5657 parse_allow_args(argc, argv, un, &opts); 5658 5659 /* try to open the dataset */ 5660 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5661 ZFS_TYPE_VOLUME)) == NULL) { 5662 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5663 opts.dataset); 5664 return (-1); 5665 } 5666 5667 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5668 goto cleanup2; 5669 5670 fs_perm_set_init(&fs_perm_set); 5671 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5672 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5673 goto cleanup1; 5674 } 5675 5676 if (opts.prt_perms) 5677 print_fs_perms(&fs_perm_set); 5678 else { 5679 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5680 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5681 goto cleanup0; 5682 5683 if (un && opts.recursive) { 5684 struct deleg_perms data = { un, update_perm_nvl }; 5685 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5686 &data) != 0) 5687 goto cleanup0; 5688 } 5689 } 5690 5691 error = 0; 5692 5693 cleanup0: 5694 nvlist_free(perm_nvl); 5695 nvlist_free(update_perm_nvl); 5696 cleanup1: 5697 fs_perm_set_fini(&fs_perm_set); 5698 cleanup2: 5699 zfs_close(zhp); 5700 5701 return (error); 5702 } 5703 5704 static int 5705 zfs_do_allow(int argc, char **argv) 5706 { 5707 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5708 } 5709 5710 static int 5711 zfs_do_unallow(int argc, char **argv) 5712 { 5713 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5714 } 5715 5716 static int 5717 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5718 { 5719 int errors = 0; 5720 int i; 5721 const char *tag; 5722 boolean_t recursive = B_FALSE; 5723 const char *opts = holding ? "rt" : "r"; 5724 int c; 5725 5726 /* check options */ 5727 while ((c = getopt(argc, argv, opts)) != -1) { 5728 switch (c) { 5729 case 'r': 5730 recursive = B_TRUE; 5731 break; 5732 case '?': 5733 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5734 optopt); 5735 usage(B_FALSE); 5736 } 5737 } 5738 5739 argc -= optind; 5740 argv += optind; 5741 5742 /* check number of arguments */ 5743 if (argc < 2) 5744 usage(B_FALSE); 5745 5746 tag = argv[0]; 5747 --argc; 5748 ++argv; 5749 5750 if (holding && tag[0] == '.') { 5751 /* tags starting with '.' are reserved for libzfs */ 5752 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5753 usage(B_FALSE); 5754 } 5755 5756 for (i = 0; i < argc; ++i) { 5757 zfs_handle_t *zhp; 5758 char parent[ZFS_MAX_DATASET_NAME_LEN]; 5759 const char *delim; 5760 char *path = argv[i]; 5761 5762 delim = strchr(path, '@'); 5763 if (delim == NULL) { 5764 (void) fprintf(stderr, 5765 gettext("'%s' is not a snapshot\n"), path); 5766 ++errors; 5767 continue; 5768 } 5769 (void) strncpy(parent, path, delim - path); 5770 parent[delim - path] = '\0'; 5771 5772 zhp = zfs_open(g_zfs, parent, 5773 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5774 if (zhp == NULL) { 5775 ++errors; 5776 continue; 5777 } 5778 if (holding) { 5779 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5780 ++errors; 5781 } else { 5782 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5783 ++errors; 5784 } 5785 zfs_close(zhp); 5786 } 5787 5788 return (errors != 0); 5789 } 5790 5791 /* 5792 * zfs hold [-r] [-t] <tag> <snap> ... 5793 * 5794 * -r Recursively hold 5795 * 5796 * Apply a user-hold with the given tag to the list of snapshots. 5797 */ 5798 static int 5799 zfs_do_hold(int argc, char **argv) 5800 { 5801 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5802 } 5803 5804 /* 5805 * zfs release [-r] <tag> <snap> ... 5806 * 5807 * -r Recursively release 5808 * 5809 * Release a user-hold with the given tag from the list of snapshots. 5810 */ 5811 static int 5812 zfs_do_release(int argc, char **argv) 5813 { 5814 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5815 } 5816 5817 typedef struct holds_cbdata { 5818 boolean_t cb_recursive; 5819 const char *cb_snapname; 5820 nvlist_t **cb_nvlp; 5821 size_t cb_max_namelen; 5822 size_t cb_max_taglen; 5823 } holds_cbdata_t; 5824 5825 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5826 #define DATETIME_BUF_LEN (32) 5827 /* 5828 * 5829 */ 5830 static void 5831 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5832 { 5833 int i; 5834 nvpair_t *nvp = NULL; 5835 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5836 const char *col; 5837 5838 if (!scripted) { 5839 for (i = 0; i < 3; i++) { 5840 col = gettext(hdr_cols[i]); 5841 if (i < 2) 5842 (void) printf("%-*s ", i ? tagwidth : nwidth, 5843 col); 5844 else 5845 (void) printf("%s\n", col); 5846 } 5847 } 5848 5849 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5850 char *zname = nvpair_name(nvp); 5851 nvlist_t *nvl2; 5852 nvpair_t *nvp2 = NULL; 5853 (void) nvpair_value_nvlist(nvp, &nvl2); 5854 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5855 char tsbuf[DATETIME_BUF_LEN]; 5856 char *tagname = nvpair_name(nvp2); 5857 uint64_t val = 0; 5858 time_t time; 5859 struct tm t; 5860 5861 (void) nvpair_value_uint64(nvp2, &val); 5862 time = (time_t)val; 5863 (void) localtime_r(&time, &t); 5864 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5865 gettext(STRFTIME_FMT_STR), &t); 5866 5867 if (scripted) { 5868 (void) printf("%s\t%s\t%s\n", zname, 5869 tagname, tsbuf); 5870 } else { 5871 (void) printf("%-*s %-*s %s\n", nwidth, 5872 zname, tagwidth, tagname, tsbuf); 5873 } 5874 } 5875 } 5876 } 5877 5878 /* 5879 * Generic callback function to list a dataset or snapshot. 5880 */ 5881 static int 5882 holds_callback(zfs_handle_t *zhp, void *data) 5883 { 5884 holds_cbdata_t *cbp = data; 5885 nvlist_t *top_nvl = *cbp->cb_nvlp; 5886 nvlist_t *nvl = NULL; 5887 nvpair_t *nvp = NULL; 5888 const char *zname = zfs_get_name(zhp); 5889 size_t znamelen = strlen(zname); 5890 5891 if (cbp->cb_recursive) { 5892 const char *snapname; 5893 char *delim = strchr(zname, '@'); 5894 if (delim == NULL) 5895 return (0); 5896 5897 snapname = delim + 1; 5898 if (strcmp(cbp->cb_snapname, snapname)) 5899 return (0); 5900 } 5901 5902 if (zfs_get_holds(zhp, &nvl) != 0) 5903 return (-1); 5904 5905 if (znamelen > cbp->cb_max_namelen) 5906 cbp->cb_max_namelen = znamelen; 5907 5908 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5909 const char *tag = nvpair_name(nvp); 5910 size_t taglen = strlen(tag); 5911 if (taglen > cbp->cb_max_taglen) 5912 cbp->cb_max_taglen = taglen; 5913 } 5914 5915 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5916 } 5917 5918 /* 5919 * zfs holds [-r] <snap> ... 5920 * 5921 * -r Recursively hold 5922 */ 5923 static int 5924 zfs_do_holds(int argc, char **argv) 5925 { 5926 int errors = 0; 5927 int c; 5928 int i; 5929 boolean_t scripted = B_FALSE; 5930 boolean_t recursive = B_FALSE; 5931 const char *opts = "rH"; 5932 nvlist_t *nvl; 5933 5934 int types = ZFS_TYPE_SNAPSHOT; 5935 holds_cbdata_t cb = { 0 }; 5936 5937 int limit = 0; 5938 int ret = 0; 5939 int flags = 0; 5940 5941 /* check options */ 5942 while ((c = getopt(argc, argv, opts)) != -1) { 5943 switch (c) { 5944 case 'r': 5945 recursive = B_TRUE; 5946 break; 5947 case 'H': 5948 scripted = B_TRUE; 5949 break; 5950 case '?': 5951 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5952 optopt); 5953 usage(B_FALSE); 5954 } 5955 } 5956 5957 if (recursive) { 5958 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5959 flags |= ZFS_ITER_RECURSE; 5960 } 5961 5962 argc -= optind; 5963 argv += optind; 5964 5965 /* check number of arguments */ 5966 if (argc < 1) 5967 usage(B_FALSE); 5968 5969 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5970 nomem(); 5971 5972 for (i = 0; i < argc; ++i) { 5973 char *snapshot = argv[i]; 5974 const char *delim; 5975 const char *snapname; 5976 5977 delim = strchr(snapshot, '@'); 5978 if (delim == NULL) { 5979 (void) fprintf(stderr, 5980 gettext("'%s' is not a snapshot\n"), snapshot); 5981 ++errors; 5982 continue; 5983 } 5984 snapname = delim + 1; 5985 if (recursive) 5986 snapshot[delim - snapshot] = '\0'; 5987 5988 cb.cb_recursive = recursive; 5989 cb.cb_snapname = snapname; 5990 cb.cb_nvlp = &nvl; 5991 5992 /* 5993 * 1. collect holds data, set format options 5994 */ 5995 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5996 holds_callback, &cb); 5997 if (ret != 0) 5998 ++errors; 5999 } 6000 6001 /* 6002 * 2. print holds data 6003 */ 6004 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 6005 6006 if (nvlist_empty(nvl)) 6007 (void) printf(gettext("no datasets available\n")); 6008 6009 nvlist_free(nvl); 6010 6011 return (0 != errors); 6012 } 6013 6014 #define CHECK_SPINNER 30 6015 #define SPINNER_TIME 3 /* seconds */ 6016 #define MOUNT_TIME 1 /* seconds */ 6017 6018 typedef struct get_all_state { 6019 boolean_t ga_verbose; 6020 get_all_cb_t *ga_cbp; 6021 } get_all_state_t; 6022 6023 static int 6024 get_one_dataset(zfs_handle_t *zhp, void *data) 6025 { 6026 static char *spin[] = { "-", "\\", "|", "/" }; 6027 static int spinval = 0; 6028 static int spincheck = 0; 6029 static time_t last_spin_time = (time_t)0; 6030 get_all_state_t *state = data; 6031 zfs_type_t type = zfs_get_type(zhp); 6032 6033 if (state->ga_verbose) { 6034 if (--spincheck < 0) { 6035 time_t now = time(NULL); 6036 if (last_spin_time + SPINNER_TIME < now) { 6037 update_progress(spin[spinval++ % 4]); 6038 last_spin_time = now; 6039 } 6040 spincheck = CHECK_SPINNER; 6041 } 6042 } 6043 6044 /* 6045 * Interate over any nested datasets. 6046 */ 6047 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 6048 zfs_close(zhp); 6049 return (1); 6050 } 6051 6052 /* 6053 * Skip any datasets whose type does not match. 6054 */ 6055 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 6056 zfs_close(zhp); 6057 return (0); 6058 } 6059 libzfs_add_handle(state->ga_cbp, zhp); 6060 assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc); 6061 6062 return (0); 6063 } 6064 6065 static void 6066 get_all_datasets(get_all_cb_t *cbp, boolean_t verbose) 6067 { 6068 get_all_state_t state = { 6069 .ga_verbose = verbose, 6070 .ga_cbp = cbp 6071 }; 6072 6073 if (verbose) 6074 set_progress_header(gettext("Reading ZFS config")); 6075 (void) zfs_iter_root(g_zfs, get_one_dataset, &state); 6076 6077 if (verbose) 6078 finish_progress(gettext("done.")); 6079 } 6080 6081 /* 6082 * Generic callback for sharing or mounting filesystems. Because the code is so 6083 * similar, we have a common function with an extra parameter to determine which 6084 * mode we are using. 6085 */ 6086 typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t; 6087 6088 typedef struct share_mount_state { 6089 share_mount_op_t sm_op; 6090 boolean_t sm_verbose; 6091 int sm_flags; 6092 char *sm_options; 6093 char *sm_proto; /* only valid for OP_SHARE */ 6094 mutex_t sm_lock; /* protects the remaining fields */ 6095 uint_t sm_total; /* number of filesystems to process */ 6096 uint_t sm_done; /* number of filesystems processed */ 6097 int sm_status; /* -1 if any of the share/mount operations failed */ 6098 } share_mount_state_t; 6099 6100 /* 6101 * Share or mount a dataset. 6102 */ 6103 static int 6104 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 6105 boolean_t explicit, const char *options) 6106 { 6107 char mountpoint[ZFS_MAXPROPLEN]; 6108 char shareopts[ZFS_MAXPROPLEN]; 6109 char smbshareopts[ZFS_MAXPROPLEN]; 6110 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 6111 struct mnttab mnt; 6112 uint64_t zoned, canmount; 6113 boolean_t shared_nfs, shared_smb; 6114 6115 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 6116 6117 /* 6118 * Check to make sure we can mount/share this dataset. If we 6119 * are in the global zone and the filesystem is exported to a 6120 * local zone, or if we are in a local zone and the 6121 * filesystem is not exported, then it is an error. 6122 */ 6123 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 6124 6125 if (zoned && getzoneid() == GLOBAL_ZONEID) { 6126 if (!explicit) 6127 return (0); 6128 6129 (void) fprintf(stderr, gettext("cannot %s '%s': " 6130 "dataset is exported to a local zone\n"), cmdname, 6131 zfs_get_name(zhp)); 6132 return (1); 6133 6134 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 6135 if (!explicit) 6136 return (0); 6137 6138 (void) fprintf(stderr, gettext("cannot %s '%s': " 6139 "permission denied\n"), cmdname, 6140 zfs_get_name(zhp)); 6141 return (1); 6142 } 6143 6144 /* 6145 * Ignore any filesystems which don't apply to us. This 6146 * includes those with a legacy mountpoint, or those with 6147 * legacy share options. 6148 */ 6149 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6150 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 6151 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 6152 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 6153 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 6154 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 6155 6156 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 6157 strcmp(smbshareopts, "off") == 0) { 6158 if (!explicit) 6159 return (0); 6160 6161 (void) fprintf(stderr, gettext("cannot share '%s': " 6162 "legacy share\n"), zfs_get_name(zhp)); 6163 (void) fprintf(stderr, gettext("use share(1M) to " 6164 "share this filesystem, or set " 6165 "sharenfs property on\n")); 6166 return (1); 6167 } 6168 6169 /* 6170 * We cannot share or mount legacy filesystems. If the 6171 * shareopts is non-legacy but the mountpoint is legacy, we 6172 * treat it as a legacy share. 6173 */ 6174 if (strcmp(mountpoint, "legacy") == 0) { 6175 if (!explicit) 6176 return (0); 6177 6178 (void) fprintf(stderr, gettext("cannot %s '%s': " 6179 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 6180 (void) fprintf(stderr, gettext("use %s(1M) to " 6181 "%s this filesystem\n"), cmdname, cmdname); 6182 return (1); 6183 } 6184 6185 if (strcmp(mountpoint, "none") == 0) { 6186 if (!explicit) 6187 return (0); 6188 6189 (void) fprintf(stderr, gettext("cannot %s '%s': no " 6190 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 6191 return (1); 6192 } 6193 6194 /* 6195 * canmount explicit outcome 6196 * on no pass through 6197 * on yes pass through 6198 * off no return 0 6199 * off yes display error, return 1 6200 * noauto no return 0 6201 * noauto yes pass through 6202 */ 6203 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 6204 if (canmount == ZFS_CANMOUNT_OFF) { 6205 if (!explicit) 6206 return (0); 6207 6208 (void) fprintf(stderr, gettext("cannot %s '%s': " 6209 "'canmount' property is set to 'off'\n"), cmdname, 6210 zfs_get_name(zhp)); 6211 return (1); 6212 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 6213 return (0); 6214 } 6215 6216 /* 6217 * If this filesystem is encrypted and does not have 6218 * a loaded key, we can not mount it. 6219 */ 6220 if ((flags & MS_CRYPT) == 0 && 6221 zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF && 6222 zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS) == 6223 ZFS_KEYSTATUS_UNAVAILABLE) { 6224 if (!explicit) 6225 return (0); 6226 6227 (void) fprintf(stderr, gettext("cannot %s '%s': " 6228 "encryption key not loaded\n"), cmdname, zfs_get_name(zhp)); 6229 return (1); 6230 } 6231 6232 /* 6233 * If this filesystem is inconsistent and has a receive resume 6234 * token, we can not mount it. 6235 */ 6236 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 6237 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 6238 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 6239 if (!explicit) 6240 return (0); 6241 6242 (void) fprintf(stderr, gettext("cannot %s '%s': " 6243 "Contains partially-completed state from " 6244 "\"zfs receive -s\", which can be resumed with " 6245 "\"zfs send -t\"\n"), 6246 cmdname, zfs_get_name(zhp)); 6247 return (1); 6248 } 6249 6250 /* 6251 * At this point, we have verified that the mountpoint and/or 6252 * shareopts are appropriate for auto management. If the 6253 * filesystem is already mounted or shared, return (failing 6254 * for explicit requests); otherwise mount or share the 6255 * filesystem. 6256 */ 6257 switch (op) { 6258 case OP_SHARE: 6259 6260 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 6261 shared_smb = zfs_is_shared_smb(zhp, NULL); 6262 6263 if ((shared_nfs && shared_smb) || 6264 (shared_nfs && strcmp(shareopts, "on") == 0 && 6265 strcmp(smbshareopts, "off") == 0) || 6266 (shared_smb && strcmp(smbshareopts, "on") == 0 && 6267 strcmp(shareopts, "off") == 0)) { 6268 if (!explicit) 6269 return (0); 6270 6271 (void) fprintf(stderr, gettext("cannot share " 6272 "'%s': filesystem already shared\n"), 6273 zfs_get_name(zhp)); 6274 return (1); 6275 } 6276 6277 if (!zfs_is_mounted(zhp, NULL) && 6278 zfs_mount(zhp, NULL, flags) != 0) 6279 return (1); 6280 6281 if (protocol == NULL) { 6282 if (zfs_shareall(zhp) != 0) 6283 return (1); 6284 } else if (strcmp(protocol, "nfs") == 0) { 6285 if (zfs_share_nfs(zhp)) 6286 return (1); 6287 } else if (strcmp(protocol, "smb") == 0) { 6288 if (zfs_share_smb(zhp)) 6289 return (1); 6290 } else { 6291 (void) fprintf(stderr, gettext("cannot share " 6292 "'%s': invalid share type '%s' " 6293 "specified\n"), 6294 zfs_get_name(zhp), protocol); 6295 return (1); 6296 } 6297 6298 break; 6299 6300 case OP_MOUNT: 6301 if (options == NULL) 6302 mnt.mnt_mntopts = ""; 6303 else 6304 mnt.mnt_mntopts = (char *)options; 6305 6306 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6307 zfs_is_mounted(zhp, NULL)) { 6308 if (!explicit) 6309 return (0); 6310 6311 (void) fprintf(stderr, gettext("cannot mount " 6312 "'%s': filesystem already mounted\n"), 6313 zfs_get_name(zhp)); 6314 return (1); 6315 } 6316 6317 if (zfs_mount(zhp, options, flags) != 0) 6318 return (1); 6319 break; 6320 } 6321 6322 return (0); 6323 } 6324 6325 /* 6326 * Reports progress in the form "(current/total)". Not thread-safe. 6327 */ 6328 static void 6329 report_mount_progress(int current, int total) 6330 { 6331 static time_t last_progress_time = 0; 6332 time_t now = time(NULL); 6333 char info[32]; 6334 6335 /* display header if we're here for the first time */ 6336 if (current == 1) { 6337 set_progress_header(gettext("Mounting ZFS filesystems")); 6338 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6339 /* too soon to report again */ 6340 return; 6341 } 6342 6343 last_progress_time = now; 6344 6345 (void) sprintf(info, "(%d/%d)", current, total); 6346 6347 if (current == total) 6348 finish_progress(info); 6349 else 6350 update_progress(info); 6351 } 6352 6353 /* 6354 * zfs_foreach_mountpoint() callback that mounts or shares one filesystem and 6355 * updates the progress meter. 6356 */ 6357 static int 6358 share_mount_one_cb(zfs_handle_t *zhp, void *arg) 6359 { 6360 share_mount_state_t *sms = arg; 6361 int ret; 6362 6363 ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto, 6364 B_FALSE, sms->sm_options); 6365 6366 mutex_enter(&sms->sm_lock); 6367 if (ret != 0) 6368 sms->sm_status = ret; 6369 sms->sm_done++; 6370 if (sms->sm_verbose) 6371 report_mount_progress(sms->sm_done, sms->sm_total); 6372 mutex_exit(&sms->sm_lock); 6373 return (ret); 6374 } 6375 6376 static void 6377 append_options(char *mntopts, char *newopts) 6378 { 6379 int len = strlen(mntopts); 6380 6381 /* original length plus new string to append plus 1 for the comma */ 6382 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 6383 (void) fprintf(stderr, gettext("the opts argument for " 6384 "'%c' option is too long (more than %d chars)\n"), 6385 "-o", MNT_LINE_MAX); 6386 usage(B_FALSE); 6387 } 6388 6389 if (*mntopts) 6390 mntopts[len++] = ','; 6391 6392 (void) strcpy(&mntopts[len], newopts); 6393 } 6394 6395 static int 6396 share_mount(int op, int argc, char **argv) 6397 { 6398 int do_all = 0; 6399 boolean_t verbose = B_FALSE; 6400 int c, ret = 0; 6401 char *options = NULL; 6402 int flags = 0; 6403 6404 /* check options */ 6405 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:O" : "al")) 6406 != -1) { 6407 switch (c) { 6408 case 'a': 6409 do_all = 1; 6410 break; 6411 case 'v': 6412 verbose = B_TRUE; 6413 break; 6414 case 'l': 6415 flags |= MS_CRYPT; 6416 break; 6417 case 'o': 6418 if (*optarg == '\0') { 6419 (void) fprintf(stderr, gettext("empty mount " 6420 "options (-o) specified\n")); 6421 usage(B_FALSE); 6422 } 6423 6424 if (options == NULL) 6425 options = safe_malloc(MNT_LINE_MAX + 1); 6426 6427 /* option validation is done later */ 6428 append_options(options, optarg); 6429 break; 6430 6431 case 'O': 6432 flags |= MS_OVERLAY; 6433 break; 6434 case ':': 6435 (void) fprintf(stderr, gettext("missing argument for " 6436 "'%c' option\n"), optopt); 6437 usage(B_FALSE); 6438 break; 6439 case '?': 6440 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6441 optopt); 6442 usage(B_FALSE); 6443 } 6444 } 6445 6446 argc -= optind; 6447 argv += optind; 6448 6449 /* check number of arguments */ 6450 if (do_all) { 6451 char *protocol = NULL; 6452 6453 if (op == OP_SHARE && argc > 0) { 6454 if (strcmp(argv[0], "nfs") != 0 && 6455 strcmp(argv[0], "smb") != 0) { 6456 (void) fprintf(stderr, gettext("share type " 6457 "must be 'nfs' or 'smb'\n")); 6458 usage(B_FALSE); 6459 } 6460 protocol = argv[0]; 6461 argc--; 6462 argv++; 6463 } 6464 6465 if (argc != 0) { 6466 (void) fprintf(stderr, gettext("too many arguments\n")); 6467 usage(B_FALSE); 6468 } 6469 6470 start_progress_timer(); 6471 get_all_cb_t cb = { 0 }; 6472 get_all_datasets(&cb, verbose); 6473 6474 if (cb.cb_used == 0) 6475 return (0); 6476 6477 if (op == OP_SHARE) { 6478 sa_init_selective_arg_t sharearg; 6479 sharearg.zhandle_arr = cb.cb_handles; 6480 sharearg.zhandle_len = cb.cb_used; 6481 if ((ret = zfs_init_libshare_arg(g_zfs, 6482 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != SA_OK) { 6483 (void) fprintf(stderr, gettext( 6484 "Could not initialize libshare, %d"), ret); 6485 return (ret); 6486 } 6487 } 6488 6489 share_mount_state_t share_mount_state = { 0 }; 6490 share_mount_state.sm_op = op; 6491 share_mount_state.sm_verbose = verbose; 6492 share_mount_state.sm_flags = flags; 6493 share_mount_state.sm_options = options; 6494 share_mount_state.sm_proto = protocol; 6495 share_mount_state.sm_total = cb.cb_used; 6496 (void) mutex_init(&share_mount_state.sm_lock, 6497 LOCK_NORMAL | LOCK_ERRORCHECK, NULL); 6498 /* 6499 * libshare isn't mt-safe, so only do the operation in parallel 6500 * if we're mounting. 6501 */ 6502 zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used, 6503 share_mount_one_cb, &share_mount_state, op == OP_MOUNT); 6504 ret = share_mount_state.sm_status; 6505 6506 for (int i = 0; i < cb.cb_used; i++) 6507 zfs_close(cb.cb_handles[i]); 6508 free(cb.cb_handles); 6509 } else if (argc == 0) { 6510 struct mnttab entry; 6511 6512 if ((op == OP_SHARE) || (options != NULL)) { 6513 (void) fprintf(stderr, gettext("missing filesystem " 6514 "argument (specify -a for all)\n")); 6515 usage(B_FALSE); 6516 } 6517 6518 /* 6519 * When mount is given no arguments, go through /etc/mnttab and 6520 * display any active ZFS mounts. We hide any snapshots, since 6521 * they are controlled automatically. 6522 */ 6523 rewind(mnttab_file); 6524 while (getmntent(mnttab_file, &entry) == 0) { 6525 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6526 strchr(entry.mnt_special, '@') != NULL) 6527 continue; 6528 6529 (void) printf("%-30s %s\n", entry.mnt_special, 6530 entry.mnt_mountp); 6531 } 6532 6533 } else { 6534 zfs_handle_t *zhp; 6535 6536 if (argc > 1) { 6537 (void) fprintf(stderr, 6538 gettext("too many arguments\n")); 6539 usage(B_FALSE); 6540 } 6541 6542 if ((zhp = zfs_open(g_zfs, argv[0], 6543 ZFS_TYPE_FILESYSTEM)) == NULL) { 6544 ret = 1; 6545 } else { 6546 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6547 options); 6548 zfs_close(zhp); 6549 } 6550 } 6551 6552 return (ret); 6553 } 6554 6555 /* 6556 * zfs mount -a [nfs] 6557 * zfs mount filesystem 6558 * 6559 * Mount all filesystems, or mount the given filesystem. 6560 */ 6561 static int 6562 zfs_do_mount(int argc, char **argv) 6563 { 6564 return (share_mount(OP_MOUNT, argc, argv)); 6565 } 6566 6567 /* 6568 * zfs share -a [nfs | smb] 6569 * zfs share filesystem 6570 * 6571 * Share all filesystems, or share the given filesystem. 6572 */ 6573 static int 6574 zfs_do_share(int argc, char **argv) 6575 { 6576 return (share_mount(OP_SHARE, argc, argv)); 6577 } 6578 6579 typedef struct unshare_unmount_node { 6580 zfs_handle_t *un_zhp; 6581 char *un_mountp; 6582 uu_avl_node_t un_avlnode; 6583 } unshare_unmount_node_t; 6584 6585 /* ARGSUSED */ 6586 static int 6587 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6588 { 6589 const unshare_unmount_node_t *l = larg; 6590 const unshare_unmount_node_t *r = rarg; 6591 6592 return (strcmp(l->un_mountp, r->un_mountp)); 6593 } 6594 6595 /* 6596 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6597 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6598 * and unmount it appropriately. 6599 */ 6600 static int 6601 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6602 { 6603 zfs_handle_t *zhp; 6604 int ret = 0; 6605 struct stat64 statbuf; 6606 struct extmnttab entry; 6607 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6608 ino_t path_inode; 6609 6610 /* 6611 * Search for the path in /etc/mnttab. Rather than looking for the 6612 * specific path, which can be fooled by non-standard paths (i.e. ".." 6613 * or "//"), we stat() the path and search for the corresponding 6614 * (major,minor) device pair. 6615 */ 6616 if (stat64(path, &statbuf) != 0) { 6617 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6618 cmdname, path, strerror(errno)); 6619 return (1); 6620 } 6621 path_inode = statbuf.st_ino; 6622 6623 /* 6624 * Search for the given (major,minor) pair in the mount table. 6625 */ 6626 rewind(mnttab_file); 6627 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6628 if (entry.mnt_major == major(statbuf.st_dev) && 6629 entry.mnt_minor == minor(statbuf.st_dev)) 6630 break; 6631 } 6632 if (ret != 0) { 6633 if (op == OP_SHARE) { 6634 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6635 "currently mounted\n"), cmdname, path); 6636 return (1); 6637 } 6638 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6639 path); 6640 if ((ret = umount2(path, flags)) != 0) 6641 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6642 strerror(errno)); 6643 return (ret != 0); 6644 } 6645 6646 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6647 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6648 "filesystem\n"), cmdname, path); 6649 return (1); 6650 } 6651 6652 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6653 ZFS_TYPE_FILESYSTEM)) == NULL) 6654 return (1); 6655 6656 ret = 1; 6657 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6658 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6659 cmdname, path, strerror(errno)); 6660 goto out; 6661 } else if (statbuf.st_ino != path_inode) { 6662 (void) fprintf(stderr, gettext("cannot " 6663 "%s '%s': not a mountpoint\n"), cmdname, path); 6664 goto out; 6665 } 6666 6667 if (op == OP_SHARE) { 6668 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6669 char smbshare_prop[ZFS_MAXPROPLEN]; 6670 6671 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6672 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6673 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6674 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6675 6676 if (strcmp(nfs_mnt_prop, "off") == 0 && 6677 strcmp(smbshare_prop, "off") == 0) { 6678 (void) fprintf(stderr, gettext("cannot unshare " 6679 "'%s': legacy share\n"), path); 6680 (void) fprintf(stderr, gettext("use " 6681 "unshare(1M) to unshare this filesystem\n")); 6682 } else if (!zfs_is_shared(zhp)) { 6683 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6684 "not currently shared\n"), path); 6685 } else { 6686 ret = zfs_unshareall_bypath(zhp, path); 6687 } 6688 } else { 6689 char mtpt_prop[ZFS_MAXPROPLEN]; 6690 6691 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6692 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6693 6694 if (is_manual) { 6695 ret = zfs_unmount(zhp, NULL, flags); 6696 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6697 (void) fprintf(stderr, gettext("cannot unmount " 6698 "'%s': legacy mountpoint\n"), 6699 zfs_get_name(zhp)); 6700 (void) fprintf(stderr, gettext("use umount(1M) " 6701 "to unmount this filesystem\n")); 6702 } else { 6703 ret = zfs_unmountall(zhp, flags); 6704 } 6705 } 6706 6707 out: 6708 zfs_close(zhp); 6709 6710 return (ret != 0); 6711 } 6712 6713 /* 6714 * Generic callback for unsharing or unmounting a filesystem. 6715 */ 6716 static int 6717 unshare_unmount(int op, int argc, char **argv) 6718 { 6719 int do_all = 0; 6720 int flags = 0; 6721 int ret = 0; 6722 int c; 6723 zfs_handle_t *zhp; 6724 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6725 char sharesmb[ZFS_MAXPROPLEN]; 6726 6727 /* check options */ 6728 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6729 switch (c) { 6730 case 'a': 6731 do_all = 1; 6732 break; 6733 case 'f': 6734 flags = MS_FORCE; 6735 break; 6736 case '?': 6737 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6738 optopt); 6739 usage(B_FALSE); 6740 } 6741 } 6742 6743 argc -= optind; 6744 argv += optind; 6745 6746 if (do_all) { 6747 /* 6748 * We could make use of zfs_for_each() to walk all datasets in 6749 * the system, but this would be very inefficient, especially 6750 * since we would have to linearly search /etc/mnttab for each 6751 * one. Instead, do one pass through /etc/mnttab looking for 6752 * zfs entries and call zfs_unmount() for each one. 6753 * 6754 * Things get a little tricky if the administrator has created 6755 * mountpoints beneath other ZFS filesystems. In this case, we 6756 * have to unmount the deepest filesystems first. To accomplish 6757 * this, we place all the mountpoints in an AVL tree sorted by 6758 * the special type (dataset name), and walk the result in 6759 * reverse to make sure to get any snapshots first. 6760 */ 6761 struct mnttab entry; 6762 uu_avl_pool_t *pool; 6763 uu_avl_t *tree = NULL; 6764 unshare_unmount_node_t *node; 6765 uu_avl_index_t idx; 6766 uu_avl_walk_t *walk; 6767 6768 if (argc != 0) { 6769 (void) fprintf(stderr, gettext("too many arguments\n")); 6770 usage(B_FALSE); 6771 } 6772 6773 if (((pool = uu_avl_pool_create("unmount_pool", 6774 sizeof (unshare_unmount_node_t), 6775 offsetof(unshare_unmount_node_t, un_avlnode), 6776 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6777 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6778 nomem(); 6779 6780 rewind(mnttab_file); 6781 while (getmntent(mnttab_file, &entry) == 0) { 6782 6783 /* ignore non-ZFS entries */ 6784 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6785 continue; 6786 6787 /* ignore snapshots */ 6788 if (strchr(entry.mnt_special, '@') != NULL) 6789 continue; 6790 6791 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6792 ZFS_TYPE_FILESYSTEM)) == NULL) { 6793 ret = 1; 6794 continue; 6795 } 6796 6797 /* 6798 * Ignore datasets that are excluded/restricted by 6799 * parent pool name. 6800 */ 6801 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6802 zfs_close(zhp); 6803 continue; 6804 } 6805 6806 switch (op) { 6807 case OP_SHARE: 6808 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6809 nfs_mnt_prop, 6810 sizeof (nfs_mnt_prop), 6811 NULL, NULL, 0, B_FALSE) == 0); 6812 if (strcmp(nfs_mnt_prop, "off") != 0) 6813 break; 6814 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6815 nfs_mnt_prop, 6816 sizeof (nfs_mnt_prop), 6817 NULL, NULL, 0, B_FALSE) == 0); 6818 if (strcmp(nfs_mnt_prop, "off") == 0) 6819 continue; 6820 break; 6821 case OP_MOUNT: 6822 /* Ignore legacy mounts */ 6823 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6824 nfs_mnt_prop, 6825 sizeof (nfs_mnt_prop), 6826 NULL, NULL, 0, B_FALSE) == 0); 6827 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6828 continue; 6829 /* Ignore canmount=noauto mounts */ 6830 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6831 ZFS_CANMOUNT_NOAUTO) 6832 continue; 6833 default: 6834 break; 6835 } 6836 6837 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6838 node->un_zhp = zhp; 6839 node->un_mountp = safe_strdup(entry.mnt_mountp); 6840 6841 uu_avl_node_init(node, &node->un_avlnode, pool); 6842 6843 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6844 uu_avl_insert(tree, node, idx); 6845 } else { 6846 zfs_close(node->un_zhp); 6847 free(node->un_mountp); 6848 free(node); 6849 } 6850 } 6851 6852 /* 6853 * Initialize libshare SA_INIT_SHARE_API_SELECTIVE here 6854 * to avoid unnecessary load/unload of the libshare API 6855 * per shared dataset downstream. 6856 */ 6857 if (op == OP_SHARE) { 6858 get_all_cb_t dslist = { 0 }; 6859 get_all_datasets(&dslist, B_FALSE); 6860 6861 if (dslist.cb_used != 0) { 6862 sa_init_selective_arg_t sharearg; 6863 sharearg.zhandle_arr = dslist.cb_handles; 6864 sharearg.zhandle_len = dslist.cb_used; 6865 if ((ret = zfs_init_libshare_arg(g_zfs, 6866 SA_INIT_SHARE_API_SELECTIVE, &sharearg)) != 6867 SA_OK) { 6868 (void) fprintf(stderr, gettext( 6869 "Could not initialize libshare, " 6870 "%d"), ret); 6871 return (1); 6872 } 6873 } 6874 } 6875 6876 /* 6877 * Walk the AVL tree in reverse, unmounting each filesystem and 6878 * removing it from the AVL tree in the process. 6879 */ 6880 if ((walk = uu_avl_walk_start(tree, 6881 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6882 nomem(); 6883 6884 while ((node = uu_avl_walk_next(walk)) != NULL) { 6885 uu_avl_remove(tree, node); 6886 6887 switch (op) { 6888 case OP_SHARE: 6889 if (zfs_unshareall_bypath(node->un_zhp, 6890 node->un_mountp) != 0) 6891 ret = 1; 6892 break; 6893 6894 case OP_MOUNT: 6895 if (zfs_unmount(node->un_zhp, 6896 node->un_mountp, flags) != 0) 6897 ret = 1; 6898 break; 6899 } 6900 6901 zfs_close(node->un_zhp); 6902 free(node->un_mountp); 6903 free(node); 6904 } 6905 6906 uu_avl_walk_end(walk); 6907 uu_avl_destroy(tree); 6908 uu_avl_pool_destroy(pool); 6909 6910 } else { 6911 if (argc != 1) { 6912 if (argc == 0) 6913 (void) fprintf(stderr, 6914 gettext("missing filesystem argument\n")); 6915 else 6916 (void) fprintf(stderr, 6917 gettext("too many arguments\n")); 6918 usage(B_FALSE); 6919 } 6920 6921 /* 6922 * We have an argument, but it may be a full path or a ZFS 6923 * filesystem. Pass full paths off to unmount_path() (shared by 6924 * manual_unmount), otherwise open the filesystem and pass to 6925 * zfs_unmount(). 6926 */ 6927 if (argv[0][0] == '/') 6928 return (unshare_unmount_path(op, argv[0], 6929 flags, B_FALSE)); 6930 6931 if ((zhp = zfs_open(g_zfs, argv[0], 6932 ZFS_TYPE_FILESYSTEM)) == NULL) 6933 return (1); 6934 6935 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6936 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6937 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6938 NULL, 0, B_FALSE) == 0); 6939 6940 switch (op) { 6941 case OP_SHARE: 6942 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6943 nfs_mnt_prop, 6944 sizeof (nfs_mnt_prop), 6945 NULL, NULL, 0, B_FALSE) == 0); 6946 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6947 sharesmb, sizeof (sharesmb), NULL, NULL, 6948 0, B_FALSE) == 0); 6949 6950 if (strcmp(nfs_mnt_prop, "off") == 0 && 6951 strcmp(sharesmb, "off") == 0) { 6952 (void) fprintf(stderr, gettext("cannot " 6953 "unshare '%s': legacy share\n"), 6954 zfs_get_name(zhp)); 6955 (void) fprintf(stderr, gettext("use " 6956 "unshare(1M) to unshare this " 6957 "filesystem\n")); 6958 ret = 1; 6959 } else if (!zfs_is_shared(zhp)) { 6960 (void) fprintf(stderr, gettext("cannot " 6961 "unshare '%s': not currently " 6962 "shared\n"), zfs_get_name(zhp)); 6963 ret = 1; 6964 } else if (zfs_unshareall(zhp) != 0) { 6965 ret = 1; 6966 } 6967 break; 6968 6969 case OP_MOUNT: 6970 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6971 (void) fprintf(stderr, gettext("cannot " 6972 "unmount '%s': legacy " 6973 "mountpoint\n"), zfs_get_name(zhp)); 6974 (void) fprintf(stderr, gettext("use " 6975 "umount(1M) to unmount this " 6976 "filesystem\n")); 6977 ret = 1; 6978 } else if (!zfs_is_mounted(zhp, NULL)) { 6979 (void) fprintf(stderr, gettext("cannot " 6980 "unmount '%s': not currently " 6981 "mounted\n"), 6982 zfs_get_name(zhp)); 6983 ret = 1; 6984 } else if (zfs_unmountall(zhp, flags) != 0) { 6985 ret = 1; 6986 } 6987 break; 6988 } 6989 6990 zfs_close(zhp); 6991 } 6992 6993 return (ret); 6994 } 6995 6996 /* 6997 * zfs unmount -a 6998 * zfs unmount filesystem 6999 * 7000 * Unmount all filesystems, or a specific ZFS filesystem. 7001 */ 7002 static int 7003 zfs_do_unmount(int argc, char **argv) 7004 { 7005 return (unshare_unmount(OP_MOUNT, argc, argv)); 7006 } 7007 7008 /* 7009 * zfs unshare -a 7010 * zfs unshare filesystem 7011 * 7012 * Unshare all filesystems, or a specific ZFS filesystem. 7013 */ 7014 static int 7015 zfs_do_unshare(int argc, char **argv) 7016 { 7017 return (unshare_unmount(OP_SHARE, argc, argv)); 7018 } 7019 7020 /* 7021 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 7022 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 7023 */ 7024 static int 7025 manual_mount(int argc, char **argv) 7026 { 7027 zfs_handle_t *zhp; 7028 char mountpoint[ZFS_MAXPROPLEN]; 7029 char mntopts[MNT_LINE_MAX] = { '\0' }; 7030 int ret = 0; 7031 int c; 7032 int flags = 0; 7033 char *dataset, *path; 7034 7035 /* check options */ 7036 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 7037 switch (c) { 7038 case 'o': 7039 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 7040 break; 7041 case 'O': 7042 flags |= MS_OVERLAY; 7043 break; 7044 case 'm': 7045 flags |= MS_NOMNTTAB; 7046 break; 7047 case ':': 7048 (void) fprintf(stderr, gettext("missing argument for " 7049 "'%c' option\n"), optopt); 7050 usage(B_FALSE); 7051 break; 7052 case '?': 7053 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7054 optopt); 7055 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 7056 "<path>\n")); 7057 return (2); 7058 } 7059 } 7060 7061 argc -= optind; 7062 argv += optind; 7063 7064 /* check that we only have two arguments */ 7065 if (argc != 2) { 7066 if (argc == 0) 7067 (void) fprintf(stderr, gettext("missing dataset " 7068 "argument\n")); 7069 else if (argc == 1) 7070 (void) fprintf(stderr, 7071 gettext("missing mountpoint argument\n")); 7072 else 7073 (void) fprintf(stderr, gettext("too many arguments\n")); 7074 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 7075 return (2); 7076 } 7077 7078 dataset = argv[0]; 7079 path = argv[1]; 7080 7081 /* try to open the dataset */ 7082 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 7083 return (1); 7084 7085 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 7086 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 7087 7088 /* check for legacy mountpoint and complain appropriately */ 7089 ret = 0; 7090 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 7091 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 7092 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 7093 (void) fprintf(stderr, gettext("mount failed: %s\n"), 7094 strerror(errno)); 7095 ret = 1; 7096 } 7097 } else { 7098 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 7099 "mounted using 'mount -F zfs'\n"), dataset); 7100 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 7101 "instead.\n"), path); 7102 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 7103 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 7104 (void) fprintf(stderr, gettext("See zfs(1M) for more " 7105 "information.\n")); 7106 ret = 1; 7107 } 7108 7109 return (ret); 7110 } 7111 7112 /* 7113 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 7114 * unmounts of non-legacy filesystems, as this is the dominant administrative 7115 * interface. 7116 */ 7117 static int 7118 manual_unmount(int argc, char **argv) 7119 { 7120 int flags = 0; 7121 int c; 7122 7123 /* check options */ 7124 while ((c = getopt(argc, argv, "f")) != -1) { 7125 switch (c) { 7126 case 'f': 7127 flags = MS_FORCE; 7128 break; 7129 case '?': 7130 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7131 optopt); 7132 (void) fprintf(stderr, gettext("usage: unmount [-f] " 7133 "<path>\n")); 7134 return (2); 7135 } 7136 } 7137 7138 argc -= optind; 7139 argv += optind; 7140 7141 /* check arguments */ 7142 if (argc != 1) { 7143 if (argc == 0) 7144 (void) fprintf(stderr, gettext("missing path " 7145 "argument\n")); 7146 else 7147 (void) fprintf(stderr, gettext("too many arguments\n")); 7148 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 7149 return (2); 7150 } 7151 7152 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 7153 } 7154 7155 static int 7156 find_command_idx(char *command, int *idx) 7157 { 7158 int i; 7159 7160 for (i = 0; i < NCOMMAND; i++) { 7161 if (command_table[i].name == NULL) 7162 continue; 7163 7164 if (strcmp(command, command_table[i].name) == 0) { 7165 *idx = i; 7166 return (0); 7167 } 7168 } 7169 return (1); 7170 } 7171 7172 static int 7173 zfs_do_diff(int argc, char **argv) 7174 { 7175 zfs_handle_t *zhp; 7176 int flags = 0; 7177 char *tosnap = NULL; 7178 char *fromsnap = NULL; 7179 char *atp, *copy; 7180 int err = 0; 7181 int c; 7182 7183 while ((c = getopt(argc, argv, "FHt")) != -1) { 7184 switch (c) { 7185 case 'F': 7186 flags |= ZFS_DIFF_CLASSIFY; 7187 break; 7188 case 'H': 7189 flags |= ZFS_DIFF_PARSEABLE; 7190 break; 7191 case 't': 7192 flags |= ZFS_DIFF_TIMESTAMP; 7193 break; 7194 default: 7195 (void) fprintf(stderr, 7196 gettext("invalid option '%c'\n"), optopt); 7197 usage(B_FALSE); 7198 } 7199 } 7200 7201 argc -= optind; 7202 argv += optind; 7203 7204 if (argc < 1) { 7205 (void) fprintf(stderr, 7206 gettext("must provide at least one snapshot name\n")); 7207 usage(B_FALSE); 7208 } 7209 7210 if (argc > 2) { 7211 (void) fprintf(stderr, gettext("too many arguments\n")); 7212 usage(B_FALSE); 7213 } 7214 7215 fromsnap = argv[0]; 7216 tosnap = (argc == 2) ? argv[1] : NULL; 7217 7218 copy = NULL; 7219 if (*fromsnap != '@') 7220 copy = strdup(fromsnap); 7221 else if (tosnap) 7222 copy = strdup(tosnap); 7223 if (copy == NULL) 7224 usage(B_FALSE); 7225 7226 if ((atp = strchr(copy, '@')) != NULL) 7227 *atp = '\0'; 7228 7229 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 7230 return (1); 7231 7232 free(copy); 7233 7234 /* 7235 * Ignore SIGPIPE so that the library can give us 7236 * information on any failure 7237 */ 7238 (void) sigignore(SIGPIPE); 7239 7240 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7241 7242 zfs_close(zhp); 7243 7244 return (err != 0); 7245 } 7246 7247 /* 7248 * zfs remap <filesystem | volume> 7249 * 7250 * Remap the indirect blocks in the given fileystem or volume. 7251 */ 7252 static int 7253 zfs_do_remap(int argc, char **argv) 7254 { 7255 const char *fsname; 7256 int err = 0; 7257 int c; 7258 7259 /* check options */ 7260 while ((c = getopt(argc, argv, "")) != -1) { 7261 switch (c) { 7262 case '?': 7263 (void) fprintf(stderr, 7264 gettext("invalid option '%c'\n"), optopt); 7265 usage(B_FALSE); 7266 } 7267 } 7268 7269 if (argc != 2) { 7270 (void) fprintf(stderr, gettext("wrong number of arguments\n")); 7271 usage(B_FALSE); 7272 } 7273 7274 fsname = argv[1]; 7275 err = zfs_remap_indirects(g_zfs, fsname); 7276 7277 return (err); 7278 } 7279 7280 /* 7281 * zfs bookmark <fs@snap> <fs#bmark> 7282 * 7283 * Creates a bookmark with the given name from the given snapshot. 7284 */ 7285 static int 7286 zfs_do_bookmark(int argc, char **argv) 7287 { 7288 char snapname[ZFS_MAX_DATASET_NAME_LEN]; 7289 zfs_handle_t *zhp; 7290 nvlist_t *nvl; 7291 int ret = 0; 7292 int c; 7293 7294 /* check options */ 7295 while ((c = getopt(argc, argv, "")) != -1) { 7296 switch (c) { 7297 case '?': 7298 (void) fprintf(stderr, 7299 gettext("invalid option '%c'\n"), optopt); 7300 goto usage; 7301 } 7302 } 7303 7304 argc -= optind; 7305 argv += optind; 7306 7307 /* check number of arguments */ 7308 if (argc < 1) { 7309 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7310 goto usage; 7311 } 7312 if (argc < 2) { 7313 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7314 goto usage; 7315 } 7316 7317 if (strchr(argv[1], '#') == NULL) { 7318 (void) fprintf(stderr, 7319 gettext("invalid bookmark name '%s' -- " 7320 "must contain a '#'\n"), argv[1]); 7321 goto usage; 7322 } 7323 7324 if (argv[0][0] == '@') { 7325 /* 7326 * Snapshot name begins with @. 7327 * Default to same fs as bookmark. 7328 */ 7329 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7330 *strchr(snapname, '#') = '\0'; 7331 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7332 } else { 7333 (void) strlcpy(snapname, argv[0], sizeof (snapname)); 7334 } 7335 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7336 if (zhp == NULL) 7337 goto usage; 7338 zfs_close(zhp); 7339 7340 7341 nvl = fnvlist_alloc(); 7342 fnvlist_add_string(nvl, argv[1], snapname); 7343 ret = lzc_bookmark(nvl, NULL); 7344 fnvlist_free(nvl); 7345 7346 if (ret != 0) { 7347 const char *err_msg; 7348 char errbuf[1024]; 7349 7350 (void) snprintf(errbuf, sizeof (errbuf), 7351 dgettext(TEXT_DOMAIN, 7352 "cannot create bookmark '%s'"), argv[1]); 7353 7354 switch (ret) { 7355 case EXDEV: 7356 err_msg = "bookmark is in a different pool"; 7357 break; 7358 case EEXIST: 7359 err_msg = "bookmark exists"; 7360 break; 7361 case EINVAL: 7362 err_msg = "invalid argument"; 7363 break; 7364 case ENOTSUP: 7365 err_msg = "bookmark feature not enabled"; 7366 break; 7367 case ENOSPC: 7368 err_msg = "out of space"; 7369 break; 7370 default: 7371 err_msg = "unknown error"; 7372 break; 7373 } 7374 (void) fprintf(stderr, "%s: %s\n", errbuf, 7375 dgettext(TEXT_DOMAIN, err_msg)); 7376 } 7377 7378 return (ret != 0); 7379 7380 usage: 7381 usage(B_FALSE); 7382 return (-1); 7383 } 7384 7385 static int 7386 zfs_do_channel_program(int argc, char **argv) 7387 { 7388 int ret, fd; 7389 char c; 7390 char *progbuf, *filename, *poolname; 7391 size_t progsize, progread; 7392 nvlist_t *outnvl; 7393 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7394 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7395 boolean_t sync_flag = B_TRUE, json_output = B_FALSE; 7396 zpool_handle_t *zhp; 7397 7398 /* check options */ 7399 while (-1 != 7400 (c = getopt(argc, argv, "jnt:(instr-limit)m:(memory-limit)"))) { 7401 switch (c) { 7402 case 't': 7403 case 'm': { 7404 uint64_t arg; 7405 char *endp; 7406 7407 errno = 0; 7408 arg = strtoull(optarg, &endp, 0); 7409 if (errno != 0 || *endp != '\0') { 7410 (void) fprintf(stderr, gettext( 7411 "invalid argument " 7412 "'%s': expected integer\n"), optarg); 7413 goto usage; 7414 } 7415 7416 if (c == 't') { 7417 if (arg > ZCP_MAX_INSTRLIMIT || arg == 0) { 7418 (void) fprintf(stderr, gettext( 7419 "Invalid instruction limit: " 7420 "%s\n"), optarg); 7421 return (1); 7422 } else { 7423 instrlimit = arg; 7424 } 7425 } else { 7426 ASSERT3U(c, ==, 'm'); 7427 if (arg > ZCP_MAX_MEMLIMIT || arg == 0) { 7428 (void) fprintf(stderr, gettext( 7429 "Invalid memory limit: " 7430 "%s\n"), optarg); 7431 return (1); 7432 } else { 7433 memlimit = arg; 7434 } 7435 } 7436 break; 7437 } 7438 case 'n': { 7439 sync_flag = B_FALSE; 7440 break; 7441 } 7442 case 'j': { 7443 json_output = B_TRUE; 7444 break; 7445 } 7446 case '?': 7447 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7448 optopt); 7449 goto usage; 7450 } 7451 } 7452 7453 argc -= optind; 7454 argv += optind; 7455 7456 if (argc < 2) { 7457 (void) fprintf(stderr, 7458 gettext("invalid number of arguments\n")); 7459 goto usage; 7460 } 7461 7462 poolname = argv[0]; 7463 filename = argv[1]; 7464 if (strcmp(filename, "-") == 0) { 7465 fd = 0; 7466 filename = "standard input"; 7467 } else if ((fd = open(filename, O_RDONLY)) < 0) { 7468 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 7469 filename, strerror(errno)); 7470 return (1); 7471 } 7472 7473 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 7474 (void) fprintf(stderr, gettext("cannot open pool '%s'"), 7475 poolname); 7476 return (1); 7477 } 7478 zpool_close(zhp); 7479 7480 /* 7481 * Read in the channel program, expanding the program buffer as 7482 * necessary. 7483 */ 7484 progread = 0; 7485 progsize = 1024; 7486 progbuf = safe_malloc(progsize); 7487 do { 7488 ret = read(fd, progbuf + progread, progsize - progread); 7489 progread += ret; 7490 if (progread == progsize && ret > 0) { 7491 progsize *= 2; 7492 progbuf = safe_realloc(progbuf, progsize); 7493 } 7494 } while (ret > 0); 7495 7496 if (fd != 0) 7497 (void) close(fd); 7498 if (ret < 0) { 7499 free(progbuf); 7500 (void) fprintf(stderr, 7501 gettext("cannot read '%s': %s\n"), 7502 filename, strerror(errno)); 7503 return (1); 7504 } 7505 progbuf[progread] = '\0'; 7506 7507 /* 7508 * Any remaining arguments are passed as arguments to the lua script as 7509 * a string array: 7510 * { 7511 * "argv" -> [ "arg 1", ... "arg n" ], 7512 * } 7513 */ 7514 nvlist_t *argnvl = fnvlist_alloc(); 7515 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); 7516 7517 if (sync_flag) { 7518 ret = lzc_channel_program(poolname, progbuf, 7519 instrlimit, memlimit, argnvl, &outnvl); 7520 } else { 7521 ret = lzc_channel_program_nosync(poolname, progbuf, 7522 instrlimit, memlimit, argnvl, &outnvl); 7523 } 7524 7525 if (ret != 0) { 7526 /* 7527 * On error, report the error message handed back by lua if one 7528 * exists. Otherwise, generate an appropriate error message, 7529 * falling back on strerror() for an unexpected return code. 7530 */ 7531 char *errstring = NULL; 7532 if (nvlist_exists(outnvl, ZCP_RET_ERROR)) { 7533 (void) nvlist_lookup_string(outnvl, 7534 ZCP_RET_ERROR, &errstring); 7535 if (errstring == NULL) 7536 errstring = strerror(ret); 7537 } else { 7538 switch (ret) { 7539 case EINVAL: 7540 errstring = 7541 "Invalid instruction or memory limit."; 7542 break; 7543 case ENOMEM: 7544 errstring = "Return value too large."; 7545 break; 7546 case ENOSPC: 7547 errstring = "Memory limit exhausted."; 7548 break; 7549 case ETIME: 7550 errstring = "Timed out."; 7551 break; 7552 case EPERM: 7553 errstring = "Permission denied. Channel " 7554 "programs must be run as root."; 7555 break; 7556 default: 7557 errstring = strerror(ret); 7558 } 7559 } 7560 (void) fprintf(stderr, 7561 gettext("Channel program execution failed:\n%s\n"), 7562 errstring); 7563 } else { 7564 if (json_output) { 7565 (void) nvlist_print_json(stdout, outnvl); 7566 } else if (nvlist_empty(outnvl)) { 7567 (void) fprintf(stdout, gettext("Channel program fully " 7568 "executed and did not produce output.\n")); 7569 } else { 7570 (void) fprintf(stdout, gettext("Channel program fully " 7571 "executed and produced output:\n")); 7572 dump_nvlist(outnvl, 4); 7573 } 7574 } 7575 7576 free(progbuf); 7577 fnvlist_free(outnvl); 7578 fnvlist_free(argnvl); 7579 return (ret != 0); 7580 7581 usage: 7582 usage(B_FALSE); 7583 return (-1); 7584 } 7585 7586 typedef struct loadkey_cbdata { 7587 boolean_t cb_loadkey; 7588 boolean_t cb_recursive; 7589 boolean_t cb_noop; 7590 char *cb_keylocation; 7591 uint64_t cb_numfailed; 7592 uint64_t cb_numattempted; 7593 } loadkey_cbdata_t; 7594 7595 static int 7596 load_key_callback(zfs_handle_t *zhp, void *data) 7597 { 7598 int ret; 7599 boolean_t is_encroot; 7600 loadkey_cbdata_t *cb = data; 7601 uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 7602 7603 /* 7604 * If we are working recursively, we want to skip loading / unloading 7605 * keys for non-encryption roots and datasets whose keys are already 7606 * in the desired end-state. 7607 */ 7608 if (cb->cb_recursive) { 7609 ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); 7610 if (ret != 0) 7611 return (ret); 7612 if (!is_encroot) 7613 return (0); 7614 7615 if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) || 7616 (!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE)) 7617 return (0); 7618 } 7619 7620 cb->cb_numattempted++; 7621 7622 if (cb->cb_loadkey) 7623 ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation); 7624 else 7625 ret = zfs_crypto_unload_key(zhp); 7626 7627 if (ret != 0) { 7628 cb->cb_numfailed++; 7629 return (ret); 7630 } 7631 7632 return (0); 7633 } 7634 7635 static int 7636 load_unload_keys(int argc, char **argv, boolean_t loadkey) 7637 { 7638 int c, ret = 0, flags = 0; 7639 boolean_t do_all = B_FALSE; 7640 loadkey_cbdata_t cb = { 0 }; 7641 7642 cb.cb_loadkey = loadkey; 7643 7644 while ((c = getopt(argc, argv, "anrL:")) != -1) { 7645 /* noop and alternate keylocations only apply to zfs load-key */ 7646 if (loadkey) { 7647 switch (c) { 7648 case 'n': 7649 cb.cb_noop = B_TRUE; 7650 continue; 7651 case 'L': 7652 cb.cb_keylocation = optarg; 7653 continue; 7654 default: 7655 break; 7656 } 7657 } 7658 7659 switch (c) { 7660 case 'a': 7661 do_all = B_TRUE; 7662 cb.cb_recursive = B_TRUE; 7663 break; 7664 case 'r': 7665 flags |= ZFS_ITER_RECURSE; 7666 cb.cb_recursive = B_TRUE; 7667 break; 7668 default: 7669 (void) fprintf(stderr, 7670 gettext("invalid option '%c'\n"), optopt); 7671 usage(B_FALSE); 7672 } 7673 } 7674 7675 argc -= optind; 7676 argv += optind; 7677 7678 if (!do_all && argc == 0) { 7679 (void) fprintf(stderr, 7680 gettext("Missing dataset argument or -a option\n")); 7681 usage(B_FALSE); 7682 } 7683 7684 if (do_all && argc != 0) { 7685 (void) fprintf(stderr, 7686 gettext("Cannot specify dataset with -a option\n")); 7687 usage(B_FALSE); 7688 } 7689 7690 if (cb.cb_recursive && cb.cb_keylocation != NULL && 7691 strcmp(cb.cb_keylocation, "prompt") != 0) { 7692 (void) fprintf(stderr, gettext("alternate keylocation may only " 7693 "be 'prompt' with -r or -a\n")); 7694 usage(B_FALSE); 7695 } 7696 7697 ret = zfs_for_each(argc, argv, flags, 7698 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, NULL, NULL, 0, 7699 load_key_callback, &cb); 7700 7701 if (cb.cb_noop || (cb.cb_recursive && cb.cb_numattempted != 0)) { 7702 (void) printf(gettext("%llu / %llu key(s) successfully %s\n"), 7703 (u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed), 7704 (u_longlong_t)cb.cb_numattempted, 7705 loadkey ? (cb.cb_noop ? "verified" : "loaded") : 7706 "unloaded"); 7707 } 7708 7709 if (cb.cb_numfailed != 0) 7710 ret = -1; 7711 7712 return (ret); 7713 } 7714 7715 static int 7716 zfs_do_load_key(int argc, char **argv) 7717 { 7718 return (load_unload_keys(argc, argv, B_TRUE)); 7719 } 7720 7721 7722 static int 7723 zfs_do_unload_key(int argc, char **argv) 7724 { 7725 return (load_unload_keys(argc, argv, B_FALSE)); 7726 } 7727 7728 static int 7729 zfs_do_change_key(int argc, char **argv) 7730 { 7731 int c, ret; 7732 uint64_t keystatus; 7733 boolean_t loadkey = B_FALSE, inheritkey = B_FALSE; 7734 zfs_handle_t *zhp = NULL; 7735 nvlist_t *props = fnvlist_alloc(); 7736 7737 while ((c = getopt(argc, argv, "lio:")) != -1) { 7738 switch (c) { 7739 case 'l': 7740 loadkey = B_TRUE; 7741 break; 7742 case 'i': 7743 inheritkey = B_TRUE; 7744 break; 7745 case 'o': 7746 if (!parseprop(props, optarg)) { 7747 nvlist_free(props); 7748 return (1); 7749 } 7750 break; 7751 default: 7752 (void) fprintf(stderr, 7753 gettext("invalid option '%c'\n"), optopt); 7754 usage(B_FALSE); 7755 } 7756 } 7757 7758 if (inheritkey && !nvlist_empty(props)) { 7759 (void) fprintf(stderr, 7760 gettext("Properties not allowed for inheriting\n")); 7761 usage(B_FALSE); 7762 } 7763 7764 argc -= optind; 7765 argv += optind; 7766 7767 if (argc < 1) { 7768 (void) fprintf(stderr, gettext("Missing dataset argument\n")); 7769 usage(B_FALSE); 7770 } 7771 7772 if (argc > 1) { 7773 (void) fprintf(stderr, gettext("Too many arguments\n")); 7774 usage(B_FALSE); 7775 } 7776 7777 zhp = zfs_open(g_zfs, argv[argc - 1], 7778 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 7779 if (zhp == NULL) 7780 usage(B_FALSE); 7781 7782 if (loadkey) { 7783 keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 7784 if (keystatus != ZFS_KEYSTATUS_AVAILABLE) { 7785 ret = zfs_crypto_load_key(zhp, B_FALSE, NULL); 7786 if (ret != 0) { 7787 nvlist_free(props); 7788 zfs_close(zhp); 7789 return (-1); 7790 } 7791 } 7792 7793 /* refresh the properties so the new keystatus is visible */ 7794 zfs_refresh_properties(zhp); 7795 } 7796 7797 ret = zfs_crypto_rewrap(zhp, props, inheritkey); 7798 if (ret != 0) { 7799 nvlist_free(props); 7800 zfs_close(zhp); 7801 return (-1); 7802 } 7803 7804 nvlist_free(props); 7805 zfs_close(zhp); 7806 return (0); 7807 } 7808 7809 /* 7810 * 1) zfs project [-d|-r] <file|directory ...> 7811 * List project ID and inherit flag of file(s) or directories. 7812 * -d: List the directory itself, not its children. 7813 * -r: List subdirectories recursively. 7814 * 7815 * 2) zfs project -C [-k] [-r] <file|directory ...> 7816 * Clear project inherit flag and/or ID on the file(s) or directories. 7817 * -k: Keep the project ID unchanged. If not specified, the project ID 7818 * will be reset as zero. 7819 * -r: Clear on subdirectories recursively. 7820 * 7821 * 3) zfs project -c [-0] [-d|-r] [-p id] <file|directory ...> 7822 * Check project ID and inherit flag on the file(s) or directories, 7823 * report the outliers. 7824 * -0: Print file name followed by a NUL instead of newline. 7825 * -d: Check the directory itself, not its children. 7826 * -p: Specify the referenced ID for comparing with the target file(s) 7827 * or directories' project IDs. If not specified, the target (top) 7828 * directory's project ID will be used as the referenced one. 7829 * -r: Check subdirectories recursively. 7830 * 7831 * 4) zfs project [-p id] [-r] [-s] <file|directory ...> 7832 * Set project ID and/or inherit flag on the file(s) or directories. 7833 * -p: Set the project ID as the given id. 7834 * -r: Set on subdirectory recursively. If not specify "-p" option, 7835 * it will use top-level directory's project ID as the given id, 7836 * then set both project ID and inherit flag on all descendants 7837 * of the top-level directory. 7838 * -s: Set project inherit flag. 7839 */ 7840 static int 7841 zfs_do_project(int argc, char **argv) 7842 { 7843 zfs_project_control_t zpc = { 7844 .zpc_expected_projid = ZFS_INVALID_PROJID, 7845 .zpc_op = ZFS_PROJECT_OP_DEFAULT, 7846 .zpc_dironly = B_FALSE, 7847 .zpc_keep_projid = B_FALSE, 7848 .zpc_newline = B_TRUE, 7849 .zpc_recursive = B_FALSE, 7850 .zpc_set_flag = B_FALSE, 7851 }; 7852 int ret = 0, c; 7853 7854 if (argc < 2) 7855 usage(B_FALSE); 7856 7857 while ((c = getopt(argc, argv, "0Ccdkp:rs")) != -1) { 7858 switch (c) { 7859 case '0': 7860 zpc.zpc_newline = B_FALSE; 7861 break; 7862 case 'C': 7863 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 7864 (void) fprintf(stderr, gettext("cannot " 7865 "specify '-C' '-c' '-s' together\n")); 7866 usage(B_FALSE); 7867 } 7868 7869 zpc.zpc_op = ZFS_PROJECT_OP_CLEAR; 7870 break; 7871 case 'c': 7872 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 7873 (void) fprintf(stderr, gettext("cannot " 7874 "specify '-C' '-c' '-s' together\n")); 7875 usage(B_FALSE); 7876 } 7877 7878 zpc.zpc_op = ZFS_PROJECT_OP_CHECK; 7879 break; 7880 case 'd': 7881 zpc.zpc_dironly = B_TRUE; 7882 /* overwrite "-r" option */ 7883 zpc.zpc_recursive = B_FALSE; 7884 break; 7885 case 'k': 7886 zpc.zpc_keep_projid = B_TRUE; 7887 break; 7888 case 'p': { 7889 char *endptr; 7890 7891 errno = 0; 7892 zpc.zpc_expected_projid = strtoull(optarg, &endptr, 0); 7893 if (errno != 0 || *endptr != '\0') { 7894 (void) fprintf(stderr, 7895 gettext("project ID must be less than " 7896 "%u\n"), UINT32_MAX); 7897 usage(B_FALSE); 7898 } 7899 if (zpc.zpc_expected_projid >= UINT32_MAX) { 7900 (void) fprintf(stderr, 7901 gettext("invalid project ID\n")); 7902 usage(B_FALSE); 7903 } 7904 break; 7905 } 7906 case 'r': 7907 zpc.zpc_recursive = B_TRUE; 7908 /* overwrite "-d" option */ 7909 zpc.zpc_dironly = B_FALSE; 7910 break; 7911 case 's': 7912 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 7913 (void) fprintf(stderr, gettext("cannot " 7914 "specify '-C' '-c' '-s' together\n")); 7915 usage(B_FALSE); 7916 } 7917 7918 zpc.zpc_set_flag = B_TRUE; 7919 zpc.zpc_op = ZFS_PROJECT_OP_SET; 7920 break; 7921 default: 7922 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7923 optopt); 7924 usage(B_FALSE); 7925 } 7926 } 7927 7928 if (zpc.zpc_op == ZFS_PROJECT_OP_DEFAULT) { 7929 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) 7930 zpc.zpc_op = ZFS_PROJECT_OP_SET; 7931 else 7932 zpc.zpc_op = ZFS_PROJECT_OP_LIST; 7933 } 7934 7935 switch (zpc.zpc_op) { 7936 case ZFS_PROJECT_OP_LIST: 7937 if (zpc.zpc_keep_projid) { 7938 (void) fprintf(stderr, 7939 gettext("'-k' is only valid together with '-C'\n")); 7940 usage(B_FALSE); 7941 } 7942 if (!zpc.zpc_newline) { 7943 (void) fprintf(stderr, 7944 gettext("'-0' is only valid together with '-c'\n")); 7945 usage(B_FALSE); 7946 } 7947 break; 7948 case ZFS_PROJECT_OP_CHECK: 7949 if (zpc.zpc_keep_projid) { 7950 (void) fprintf(stderr, 7951 gettext("'-k' is only valid together with '-C'\n")); 7952 usage(B_FALSE); 7953 } 7954 break; 7955 case ZFS_PROJECT_OP_CLEAR: 7956 if (zpc.zpc_dironly) { 7957 (void) fprintf(stderr, 7958 gettext("'-d' is useless together with '-C'\n")); 7959 usage(B_FALSE); 7960 } 7961 if (!zpc.zpc_newline) { 7962 (void) fprintf(stderr, 7963 gettext("'-0' is only valid together with '-c'\n")); 7964 usage(B_FALSE); 7965 } 7966 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) { 7967 (void) fprintf(stderr, 7968 gettext("'-p' is useless together with '-C'\n")); 7969 usage(B_FALSE); 7970 } 7971 break; 7972 case ZFS_PROJECT_OP_SET: 7973 if (zpc.zpc_dironly) { 7974 (void) fprintf(stderr, 7975 gettext("'-d' is useless for set project ID and/or " 7976 "inherit flag\n")); 7977 usage(B_FALSE); 7978 } 7979 if (zpc.zpc_keep_projid) { 7980 (void) fprintf(stderr, 7981 gettext("'-k' is only valid together with '-C'\n")); 7982 usage(B_FALSE); 7983 } 7984 if (!zpc.zpc_newline) { 7985 (void) fprintf(stderr, 7986 gettext("'-0' is only valid together with '-c'\n")); 7987 usage(B_FALSE); 7988 } 7989 break; 7990 default: 7991 ASSERT(0); 7992 break; 7993 } 7994 7995 argv += optind; 7996 argc -= optind; 7997 if (argc == 0) { 7998 (void) fprintf(stderr, 7999 gettext("missing file or directory target(s)\n")); 8000 usage(B_FALSE); 8001 } 8002 8003 for (int i = 0; i < argc; i++) { 8004 int err; 8005 8006 err = zfs_project_handle(argv[i], &zpc); 8007 if (err && !ret) 8008 ret = err; 8009 } 8010 8011 return (ret); 8012 } 8013 8014 int 8015 main(int argc, char **argv) 8016 { 8017 int ret = 0; 8018 int i; 8019 char *progname; 8020 char *cmdname; 8021 8022 (void) setlocale(LC_ALL, ""); 8023 (void) textdomain(TEXT_DOMAIN); 8024 8025 opterr = 0; 8026 8027 if ((g_zfs = libzfs_init()) == NULL) { 8028 (void) fprintf(stderr, gettext("internal error: failed to " 8029 "initialize ZFS library\n")); 8030 return (1); 8031 } 8032 8033 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 8034 8035 libzfs_print_on_error(g_zfs, B_TRUE); 8036 8037 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 8038 (void) fprintf(stderr, gettext("internal error: unable to " 8039 "open %s\n"), MNTTAB); 8040 return (1); 8041 } 8042 8043 /* 8044 * This command also doubles as the /etc/fs mount and unmount program. 8045 * Determine if we should take this behavior based on argv[0]. 8046 */ 8047 progname = basename(argv[0]); 8048 if (strcmp(progname, "mount") == 0) { 8049 ret = manual_mount(argc, argv); 8050 } else if (strcmp(progname, "umount") == 0) { 8051 ret = manual_unmount(argc, argv); 8052 } else { 8053 /* 8054 * Make sure the user has specified some command. 8055 */ 8056 if (argc < 2) { 8057 (void) fprintf(stderr, gettext("missing command\n")); 8058 usage(B_FALSE); 8059 } 8060 8061 cmdname = argv[1]; 8062 8063 /* 8064 * The 'umount' command is an alias for 'unmount' 8065 */ 8066 if (strcmp(cmdname, "umount") == 0) 8067 cmdname = "unmount"; 8068 8069 /* 8070 * The 'recv' command is an alias for 'receive' 8071 */ 8072 if (strcmp(cmdname, "recv") == 0) 8073 cmdname = "receive"; 8074 8075 /* 8076 * The 'snap' command is an alias for 'snapshot' 8077 */ 8078 if (strcmp(cmdname, "snap") == 0) 8079 cmdname = "snapshot"; 8080 8081 /* 8082 * Special case '-?' 8083 */ 8084 if (strcmp(cmdname, "-?") == 0) 8085 usage(B_TRUE); 8086 8087 /* 8088 * Run the appropriate command. 8089 */ 8090 libzfs_mnttab_cache(g_zfs, B_TRUE); 8091 if (find_command_idx(cmdname, &i) == 0) { 8092 current_command = &command_table[i]; 8093 ret = command_table[i].func(argc - 1, argv + 1); 8094 } else if (strchr(cmdname, '=') != NULL) { 8095 verify(find_command_idx("set", &i) == 0); 8096 current_command = &command_table[i]; 8097 ret = command_table[i].func(argc, argv); 8098 } else { 8099 (void) fprintf(stderr, gettext("unrecognized " 8100 "command '%s'\n"), cmdname); 8101 usage(B_FALSE); 8102 } 8103 libzfs_mnttab_cache(g_zfs, B_FALSE); 8104 } 8105 8106 (void) fclose(mnttab_file); 8107 8108 if (ret == 0 && log_history) 8109 (void) zpool_log_history(g_zfs, history_str); 8110 8111 libzfs_fini(g_zfs); 8112 8113 /* 8114 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 8115 * for the purposes of running ::findleaks. 8116 */ 8117 if (getenv("ZFS_ABORT") != NULL) { 8118 (void) printf("dumping core by request\n"); 8119 abort(); 8120 } 8121 8122 return (ret); 8123 } 8124