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, 2020 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2013 Steven Hartland. All rights reserved. 28 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 29 * Copyright 2016 Nexenta Systems, Inc. 30 * Copyright (c) 2019 Datto Inc. 31 * Copyright (c) 2019, loli10K <ezomori.nozomu@gmail.com> 32 * Copyright 2019 Joyent, Inc. 33 * Copyright (c) 2019, 2020 by Christian Schwarz. All rights reserved. 34 */ 35 36 #include <assert.h> 37 #include <ctype.h> 38 #include <sys/debug.h> 39 #include <errno.h> 40 #include <getopt.h> 41 #include <libgen.h> 42 #include <libintl.h> 43 #include <libuutil.h> 44 #include <libnvpair.h> 45 #include <locale.h> 46 #include <stddef.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <strings.h> 50 #include <unistd.h> 51 #include <fcntl.h> 52 #include <zone.h> 53 #include <grp.h> 54 #include <pwd.h> 55 #include <umem.h> 56 #include <pthread.h> 57 #include <signal.h> 58 #include <sys/list.h> 59 #include <sys/mkdev.h> 60 #include <sys/mntent.h> 61 #include <sys/mnttab.h> 62 #include <sys/mount.h> 63 #include <sys/stat.h> 64 #include <sys/fs/zfs.h> 65 #include <sys/systeminfo.h> 66 #include <sys/types.h> 67 #include <time.h> 68 #include <sys/zfs_project.h> 69 70 #include <libzfs.h> 71 #include <libzfs_core.h> 72 #include <zfs_prop.h> 73 #include <zfs_deleg.h> 74 #include <libzutil.h> 75 #ifdef HAVE_IDMAP 76 #include <aclutils.h> 77 #include <directory.h> 78 #endif /* HAVE_IDMAP */ 79 80 #include "zfs_iter.h" 81 #include "zfs_util.h" 82 #include "zfs_comutil.h" 83 #include "zfs_projectutil.h" 84 85 libzfs_handle_t *g_zfs; 86 87 static char history_str[HIS_MAX_RECORD_LEN]; 88 static boolean_t log_history = B_TRUE; 89 90 static int zfs_do_clone(int argc, char **argv); 91 static int zfs_do_create(int argc, char **argv); 92 static int zfs_do_destroy(int argc, char **argv); 93 static int zfs_do_get(int argc, char **argv); 94 static int zfs_do_inherit(int argc, char **argv); 95 static int zfs_do_list(int argc, char **argv); 96 static int zfs_do_mount(int argc, char **argv); 97 static int zfs_do_rename(int argc, char **argv); 98 static int zfs_do_rollback(int argc, char **argv); 99 static int zfs_do_set(int argc, char **argv); 100 static int zfs_do_upgrade(int argc, char **argv); 101 static int zfs_do_snapshot(int argc, char **argv); 102 static int zfs_do_unmount(int argc, char **argv); 103 static int zfs_do_share(int argc, char **argv); 104 static int zfs_do_unshare(int argc, char **argv); 105 static int zfs_do_send(int argc, char **argv); 106 static int zfs_do_receive(int argc, char **argv); 107 static int zfs_do_promote(int argc, char **argv); 108 static int zfs_do_userspace(int argc, char **argv); 109 static int zfs_do_allow(int argc, char **argv); 110 static int zfs_do_unallow(int argc, char **argv); 111 static int zfs_do_hold(int argc, char **argv); 112 static int zfs_do_holds(int argc, char **argv); 113 static int zfs_do_release(int argc, char **argv); 114 static int zfs_do_diff(int argc, char **argv); 115 static int zfs_do_bookmark(int argc, char **argv); 116 static int zfs_do_channel_program(int argc, char **argv); 117 static int zfs_do_load_key(int argc, char **argv); 118 static int zfs_do_unload_key(int argc, char **argv); 119 static int zfs_do_change_key(int argc, char **argv); 120 static int zfs_do_project(int argc, char **argv); 121 static int zfs_do_version(int argc, char **argv); 122 static int zfs_do_redact(int argc, char **argv); 123 static int zfs_do_wait(int argc, char **argv); 124 125 #ifdef __FreeBSD__ 126 static int zfs_do_jail(int argc, char **argv); 127 static int zfs_do_unjail(int argc, char **argv); 128 #endif 129 130 /* 131 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 132 */ 133 134 #ifdef DEBUG 135 const char * 136 _umem_debug_init(void) 137 { 138 return ("default,verbose"); /* $UMEM_DEBUG setting */ 139 } 140 141 const char * 142 _umem_logging_init(void) 143 { 144 return ("fail,contents"); /* $UMEM_LOGGING setting */ 145 } 146 #endif 147 148 typedef enum { 149 HELP_CLONE, 150 HELP_CREATE, 151 HELP_DESTROY, 152 HELP_GET, 153 HELP_INHERIT, 154 HELP_UPGRADE, 155 HELP_LIST, 156 HELP_MOUNT, 157 HELP_PROMOTE, 158 HELP_RECEIVE, 159 HELP_RENAME, 160 HELP_ROLLBACK, 161 HELP_SEND, 162 HELP_SET, 163 HELP_SHARE, 164 HELP_SNAPSHOT, 165 HELP_UNMOUNT, 166 HELP_UNSHARE, 167 HELP_ALLOW, 168 HELP_UNALLOW, 169 HELP_USERSPACE, 170 HELP_GROUPSPACE, 171 HELP_PROJECTSPACE, 172 HELP_PROJECT, 173 HELP_HOLD, 174 HELP_HOLDS, 175 HELP_RELEASE, 176 HELP_DIFF, 177 HELP_BOOKMARK, 178 HELP_CHANNEL_PROGRAM, 179 HELP_LOAD_KEY, 180 HELP_UNLOAD_KEY, 181 HELP_CHANGE_KEY, 182 HELP_VERSION, 183 HELP_REDACT, 184 HELP_JAIL, 185 HELP_UNJAIL, 186 HELP_WAIT, 187 } zfs_help_t; 188 189 typedef struct zfs_command { 190 const char *name; 191 int (*func)(int argc, char **argv); 192 zfs_help_t usage; 193 } zfs_command_t; 194 195 /* 196 * Master command table. Each ZFS command has a name, associated function, and 197 * usage message. The usage messages need to be internationalized, so we have 198 * to have a function to return the usage message based on a command index. 199 * 200 * These commands are organized according to how they are displayed in the usage 201 * message. An empty command (one with a NULL name) indicates an empty line in 202 * the generic usage message. 203 */ 204 static zfs_command_t command_table[] = { 205 { "version", zfs_do_version, HELP_VERSION }, 206 { NULL }, 207 { "create", zfs_do_create, HELP_CREATE }, 208 { "destroy", zfs_do_destroy, HELP_DESTROY }, 209 { NULL }, 210 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 211 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 212 { "clone", zfs_do_clone, HELP_CLONE }, 213 { "promote", zfs_do_promote, HELP_PROMOTE }, 214 { "rename", zfs_do_rename, HELP_RENAME }, 215 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 216 { "program", zfs_do_channel_program, HELP_CHANNEL_PROGRAM }, 217 { NULL }, 218 { "list", zfs_do_list, HELP_LIST }, 219 { NULL }, 220 { "set", zfs_do_set, HELP_SET }, 221 { "get", zfs_do_get, HELP_GET }, 222 { "inherit", zfs_do_inherit, HELP_INHERIT }, 223 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 224 { NULL }, 225 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 226 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 227 { "projectspace", zfs_do_userspace, HELP_PROJECTSPACE }, 228 { NULL }, 229 { "project", zfs_do_project, HELP_PROJECT }, 230 { NULL }, 231 { "mount", zfs_do_mount, HELP_MOUNT }, 232 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 233 { "share", zfs_do_share, HELP_SHARE }, 234 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 235 { NULL }, 236 { "send", zfs_do_send, HELP_SEND }, 237 { "receive", zfs_do_receive, HELP_RECEIVE }, 238 { NULL }, 239 { "allow", zfs_do_allow, HELP_ALLOW }, 240 { NULL }, 241 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 242 { NULL }, 243 { "hold", zfs_do_hold, HELP_HOLD }, 244 { "holds", zfs_do_holds, HELP_HOLDS }, 245 { "release", zfs_do_release, HELP_RELEASE }, 246 { "diff", zfs_do_diff, HELP_DIFF }, 247 { "load-key", zfs_do_load_key, HELP_LOAD_KEY }, 248 { "unload-key", zfs_do_unload_key, HELP_UNLOAD_KEY }, 249 { "change-key", zfs_do_change_key, HELP_CHANGE_KEY }, 250 { "redact", zfs_do_redact, HELP_REDACT }, 251 { "wait", zfs_do_wait, HELP_WAIT }, 252 253 #ifdef __FreeBSD__ 254 { "jail", zfs_do_jail, HELP_JAIL }, 255 { "unjail", zfs_do_unjail, HELP_UNJAIL }, 256 #endif 257 }; 258 259 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 260 261 zfs_command_t *current_command; 262 263 static const char * 264 get_usage(zfs_help_t idx) 265 { 266 switch (idx) { 267 case HELP_CLONE: 268 return (gettext("\tclone [-p] [-o property=value] ... " 269 "<snapshot> <filesystem|volume>\n")); 270 case HELP_CREATE: 271 return (gettext("\tcreate [-Pnpuv] [-o property=value] ... " 272 "<filesystem>\n" 273 "\tcreate [-Pnpsv] [-b blocksize] [-o property=value] ... " 274 "-V <size> <volume>\n")); 275 case HELP_DESTROY: 276 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 277 "\tdestroy [-dnpRrv] " 278 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 279 "\tdestroy <filesystem|volume>#<bookmark>\n")); 280 case HELP_GET: 281 return (gettext("\tget [-rHp] [-d max] " 282 "[-o \"all\" | field[,...]]\n" 283 "\t [-t type[,...]] [-s source[,...]]\n" 284 "\t <\"all\" | property[,...]> " 285 "[filesystem|volume|snapshot|bookmark] ...\n")); 286 case HELP_INHERIT: 287 return (gettext("\tinherit [-rS] <property> " 288 "<filesystem|volume|snapshot> ...\n")); 289 case HELP_UPGRADE: 290 return (gettext("\tupgrade [-v]\n" 291 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 292 case HELP_LIST: 293 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 294 "[-s property]...\n\t [-S property]... [-t type[,...]] " 295 "[filesystem|volume|snapshot] ...\n")); 296 case HELP_MOUNT: 297 return (gettext("\tmount\n" 298 "\tmount [-flvO] [-o opts] <-a | filesystem>\n")); 299 case HELP_PROMOTE: 300 return (gettext("\tpromote <clone-filesystem>\n")); 301 case HELP_RECEIVE: 302 return (gettext("\treceive [-vMnsFhu] " 303 "[-o <property>=<value>] ... [-x <property>] ...\n" 304 "\t <filesystem|volume|snapshot>\n" 305 "\treceive [-vMnsFhu] [-o <property>=<value>] ... " 306 "[-x <property>] ... \n" 307 "\t [-d | -e] <filesystem>\n" 308 "\treceive -A <filesystem|volume>\n")); 309 case HELP_RENAME: 310 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 311 "<filesystem|volume|snapshot>\n" 312 "\trename -p [-f] <filesystem|volume> <filesystem|volume>\n" 313 "\trename -u [-f] <filesystem> <filesystem>\n" 314 "\trename -r <snapshot> <snapshot>\n")); 315 case HELP_ROLLBACK: 316 return (gettext("\trollback [-rRf] <snapshot>\n")); 317 case HELP_SEND: 318 return (gettext("\tsend [-DnPpRvLecwhb] [-[i|I] snapshot] " 319 "<snapshot>\n" 320 "\tsend [-DnvPLecw] [-i snapshot|bookmark] " 321 "<filesystem|volume|snapshot>\n" 322 "\tsend [-DnPpvLec] [-i bookmark|snapshot] " 323 "--redact <bookmark> <snapshot>\n" 324 "\tsend [-nvPe] -t <receive_resume_token>\n" 325 "\tsend [-Pnv] --saved filesystem\n")); 326 case HELP_SET: 327 return (gettext("\tset <property=value> ... " 328 "<filesystem|volume|snapshot> ...\n")); 329 case HELP_SHARE: 330 return (gettext("\tshare [-l] <-a [nfs|smb] | filesystem>\n")); 331 case HELP_SNAPSHOT: 332 return (gettext("\tsnapshot [-r] [-o property=value] ... " 333 "<filesystem|volume>@<snap> ...\n")); 334 case HELP_UNMOUNT: 335 return (gettext("\tunmount [-fu] " 336 "<-a | filesystem|mountpoint>\n")); 337 case HELP_UNSHARE: 338 return (gettext("\tunshare " 339 "<-a [nfs|smb] | filesystem|mountpoint>\n")); 340 case HELP_ALLOW: 341 return (gettext("\tallow <filesystem|volume>\n" 342 "\tallow [-ldug] " 343 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 344 "\t <filesystem|volume>\n" 345 "\tallow [-ld] -e <perm|@setname>[,...] " 346 "<filesystem|volume>\n" 347 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 348 "\tallow -s @setname <perm|@setname>[,...] " 349 "<filesystem|volume>\n")); 350 case HELP_UNALLOW: 351 return (gettext("\tunallow [-rldug] " 352 "<\"everyone\"|user|group>[,...]\n" 353 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 354 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 355 "<filesystem|volume>\n" 356 "\tunallow [-r] -c [<perm|@setname>[,...]] " 357 "<filesystem|volume>\n" 358 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 359 "<filesystem|volume>\n")); 360 case HELP_USERSPACE: 361 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 362 "[-s field] ...\n" 363 "\t [-S field] ... [-t type[,...]] " 364 "<filesystem|snapshot|path>\n")); 365 case HELP_GROUPSPACE: 366 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 367 "[-s field] ...\n" 368 "\t [-S field] ... [-t type[,...]] " 369 "<filesystem|snapshot|path>\n")); 370 case HELP_PROJECTSPACE: 371 return (gettext("\tprojectspace [-Hp] [-o field[,...]] " 372 "[-s field] ... \n" 373 "\t [-S field] ... <filesystem|snapshot|path>\n")); 374 case HELP_PROJECT: 375 return (gettext("\tproject [-d|-r] <directory|file ...>\n" 376 "\tproject -c [-0] [-d|-r] [-p id] <directory|file ...>\n" 377 "\tproject -C [-k] [-r] <directory ...>\n" 378 "\tproject [-p id] [-r] [-s] <directory ...>\n")); 379 case HELP_HOLD: 380 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 381 case HELP_HOLDS: 382 return (gettext("\tholds [-rH] <snapshot> ...\n")); 383 case HELP_RELEASE: 384 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 385 case HELP_DIFF: 386 return (gettext("\tdiff [-FHt] <snapshot> " 387 "[snapshot|filesystem]\n")); 388 case HELP_BOOKMARK: 389 return (gettext("\tbookmark <snapshot|bookmark> " 390 "<newbookmark>\n")); 391 case HELP_CHANNEL_PROGRAM: 392 return (gettext("\tprogram [-jn] [-t <instruction limit>] " 393 "[-m <memory limit (b)>]\n" 394 "\t <pool> <program file> [lua args...]\n")); 395 case HELP_LOAD_KEY: 396 return (gettext("\tload-key [-rn] [-L <keylocation>] " 397 "<-a | filesystem|volume>\n")); 398 case HELP_UNLOAD_KEY: 399 return (gettext("\tunload-key [-r] " 400 "<-a | filesystem|volume>\n")); 401 case HELP_CHANGE_KEY: 402 return (gettext("\tchange-key [-l] [-o keyformat=<value>]\n" 403 "\t [-o keylocation=<value>] [-o pbkdf2iters=<value>]\n" 404 "\t <filesystem|volume>\n" 405 "\tchange-key -i [-l] <filesystem|volume>\n")); 406 case HELP_VERSION: 407 return (gettext("\tversion\n")); 408 case HELP_REDACT: 409 return (gettext("\tredact <snapshot> <bookmark> " 410 "<redaction_snapshot> ...\n")); 411 case HELP_JAIL: 412 return (gettext("\tjail <jailid|jailname> <filesystem>\n")); 413 case HELP_UNJAIL: 414 return (gettext("\tunjail <jailid|jailname> <filesystem>\n")); 415 case HELP_WAIT: 416 return (gettext("\twait [-t <activity>] <filesystem>\n")); 417 } 418 419 abort(); 420 /* NOTREACHED */ 421 } 422 423 void 424 nomem(void) 425 { 426 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 427 exit(1); 428 } 429 430 /* 431 * Utility function to guarantee malloc() success. 432 */ 433 434 void * 435 safe_malloc(size_t size) 436 { 437 void *data; 438 439 if ((data = calloc(1, size)) == NULL) 440 nomem(); 441 442 return (data); 443 } 444 445 static void * 446 safe_realloc(void *data, size_t size) 447 { 448 void *newp; 449 if ((newp = realloc(data, size)) == NULL) { 450 free(data); 451 nomem(); 452 } 453 454 return (newp); 455 } 456 457 static char * 458 safe_strdup(char *str) 459 { 460 char *dupstr = strdup(str); 461 462 if (dupstr == NULL) 463 nomem(); 464 465 return (dupstr); 466 } 467 468 /* 469 * Callback routine that will print out information for each of 470 * the properties. 471 */ 472 static int 473 usage_prop_cb(int prop, void *cb) 474 { 475 FILE *fp = cb; 476 477 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 478 479 if (zfs_prop_readonly(prop)) 480 (void) fprintf(fp, " NO "); 481 else 482 (void) fprintf(fp, "YES "); 483 484 if (zfs_prop_inheritable(prop)) 485 (void) fprintf(fp, " YES "); 486 else 487 (void) fprintf(fp, " NO "); 488 489 if (zfs_prop_values(prop) == NULL) 490 (void) fprintf(fp, "-\n"); 491 else 492 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 493 494 return (ZPROP_CONT); 495 } 496 497 /* 498 * Display usage message. If we're inside a command, display only the usage for 499 * that command. Otherwise, iterate over the entire command table and display 500 * a complete usage message. 501 */ 502 static void 503 usage(boolean_t requested) 504 { 505 int i; 506 boolean_t show_properties = B_FALSE; 507 FILE *fp = requested ? stdout : stderr; 508 509 if (current_command == NULL) { 510 511 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 512 (void) fprintf(fp, 513 gettext("where 'command' is one of the following:\n\n")); 514 515 for (i = 0; i < NCOMMAND; i++) { 516 if (command_table[i].name == NULL) 517 (void) fprintf(fp, "\n"); 518 else 519 (void) fprintf(fp, "%s", 520 get_usage(command_table[i].usage)); 521 } 522 523 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 524 "pool/[dataset/]*dataset[@name]\n")); 525 } else { 526 (void) fprintf(fp, gettext("usage:\n")); 527 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 528 } 529 530 if (current_command != NULL && 531 (strcmp(current_command->name, "set") == 0 || 532 strcmp(current_command->name, "get") == 0 || 533 strcmp(current_command->name, "inherit") == 0 || 534 strcmp(current_command->name, "list") == 0)) 535 show_properties = B_TRUE; 536 537 if (show_properties) { 538 (void) fprintf(fp, 539 gettext("\nThe following properties are supported:\n")); 540 541 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 542 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 543 544 /* Iterate over all properties */ 545 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 546 ZFS_TYPE_DATASET); 547 548 (void) fprintf(fp, "\t%-15s ", "userused@..."); 549 (void) fprintf(fp, " NO NO <size>\n"); 550 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 551 (void) fprintf(fp, " NO NO <size>\n"); 552 (void) fprintf(fp, "\t%-15s ", "projectused@..."); 553 (void) fprintf(fp, " NO NO <size>\n"); 554 (void) fprintf(fp, "\t%-15s ", "userobjused@..."); 555 (void) fprintf(fp, " NO NO <size>\n"); 556 (void) fprintf(fp, "\t%-15s ", "groupobjused@..."); 557 (void) fprintf(fp, " NO NO <size>\n"); 558 (void) fprintf(fp, "\t%-15s ", "projectobjused@..."); 559 (void) fprintf(fp, " NO NO <size>\n"); 560 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 561 (void) fprintf(fp, "YES NO <size> | none\n"); 562 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 563 (void) fprintf(fp, "YES NO <size> | none\n"); 564 (void) fprintf(fp, "\t%-15s ", "projectquota@..."); 565 (void) fprintf(fp, "YES NO <size> | none\n"); 566 (void) fprintf(fp, "\t%-15s ", "userobjquota@..."); 567 (void) fprintf(fp, "YES NO <size> | none\n"); 568 (void) fprintf(fp, "\t%-15s ", "groupobjquota@..."); 569 (void) fprintf(fp, "YES NO <size> | none\n"); 570 (void) fprintf(fp, "\t%-15s ", "projectobjquota@..."); 571 (void) fprintf(fp, "YES NO <size> | none\n"); 572 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 573 (void) fprintf(fp, " NO NO <size>\n"); 574 (void) fprintf(fp, "\t%-15s ", "written#<bookmark>"); 575 (void) fprintf(fp, " NO NO <size>\n"); 576 577 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 578 "with standard units such as K, M, G, etc.\n")); 579 (void) fprintf(fp, gettext("\nUser-defined properties can " 580 "be specified by using a name containing a colon (:).\n")); 581 (void) fprintf(fp, gettext("\nThe {user|group|project}" 582 "[obj]{used|quota}@ properties must be appended with\n" 583 "a user|group|project specifier of one of these forms:\n" 584 " POSIX name (eg: \"matt\")\n" 585 " POSIX id (eg: \"126829\")\n" 586 " SMB name@domain (eg: \"matt@sun\")\n" 587 " SMB SID (eg: \"S-1-234-567-89\")\n")); 588 } else { 589 (void) fprintf(fp, 590 gettext("\nFor the property list, run: %s\n"), 591 "zfs set|get"); 592 (void) fprintf(fp, 593 gettext("\nFor the delegated permission list, run: %s\n"), 594 "zfs allow|unallow"); 595 } 596 597 /* 598 * See comments at end of main(). 599 */ 600 if (getenv("ZFS_ABORT") != NULL) { 601 (void) printf("dumping core by request\n"); 602 abort(); 603 } 604 605 exit(requested ? 0 : 2); 606 } 607 608 /* 609 * Take a property=value argument string and add it to the given nvlist. 610 * Modifies the argument inplace. 611 */ 612 static boolean_t 613 parseprop(nvlist_t *props, char *propname) 614 { 615 char *propval; 616 617 if ((propval = strchr(propname, '=')) == NULL) { 618 (void) fprintf(stderr, gettext("missing " 619 "'=' for property=value argument\n")); 620 return (B_FALSE); 621 } 622 *propval = '\0'; 623 propval++; 624 if (nvlist_exists(props, propname)) { 625 (void) fprintf(stderr, gettext("property '%s' " 626 "specified multiple times\n"), propname); 627 return (B_FALSE); 628 } 629 if (nvlist_add_string(props, propname, propval) != 0) 630 nomem(); 631 return (B_TRUE); 632 } 633 634 /* 635 * Take a property name argument and add it to the given nvlist. 636 * Modifies the argument inplace. 637 */ 638 static boolean_t 639 parsepropname(nvlist_t *props, char *propname) 640 { 641 if (strchr(propname, '=') != NULL) { 642 (void) fprintf(stderr, gettext("invalid character " 643 "'=' in property argument\n")); 644 return (B_FALSE); 645 } 646 if (nvlist_exists(props, propname)) { 647 (void) fprintf(stderr, gettext("property '%s' " 648 "specified multiple times\n"), propname); 649 return (B_FALSE); 650 } 651 if (nvlist_add_boolean(props, propname) != 0) 652 nomem(); 653 return (B_TRUE); 654 } 655 656 static int 657 parse_depth(char *opt, int *flags) 658 { 659 char *tmp; 660 int depth; 661 662 depth = (int)strtol(opt, &tmp, 0); 663 if (*tmp) { 664 (void) fprintf(stderr, 665 gettext("%s is not an integer\n"), optarg); 666 usage(B_FALSE); 667 } 668 if (depth < 0) { 669 (void) fprintf(stderr, 670 gettext("Depth can not be negative.\n")); 671 usage(B_FALSE); 672 } 673 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 674 return (depth); 675 } 676 677 #define PROGRESS_DELAY 2 /* seconds */ 678 679 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"; 680 static time_t pt_begin; 681 static char *pt_header = NULL; 682 static boolean_t pt_shown; 683 684 static void 685 start_progress_timer(void) 686 { 687 pt_begin = time(NULL) + PROGRESS_DELAY; 688 pt_shown = B_FALSE; 689 } 690 691 static void 692 set_progress_header(char *header) 693 { 694 assert(pt_header == NULL); 695 pt_header = safe_strdup(header); 696 if (pt_shown) { 697 (void) printf("%s: ", header); 698 (void) fflush(stdout); 699 } 700 } 701 702 static void 703 update_progress(char *update) 704 { 705 if (!pt_shown && time(NULL) > pt_begin) { 706 int len = strlen(update); 707 708 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 709 pt_reverse); 710 (void) fflush(stdout); 711 pt_shown = B_TRUE; 712 } else if (pt_shown) { 713 int len = strlen(update); 714 715 (void) printf("%s%*.*s", update, len, len, pt_reverse); 716 (void) fflush(stdout); 717 } 718 } 719 720 static void 721 finish_progress(char *done) 722 { 723 if (pt_shown) { 724 (void) printf("%s\n", done); 725 (void) fflush(stdout); 726 } 727 free(pt_header); 728 pt_header = NULL; 729 } 730 731 /* This function checks if the passed fd refers to /dev/null or /dev/zero */ 732 #ifdef __linux__ 733 static boolean_t 734 is_dev_nullzero(int fd) 735 { 736 struct stat st; 737 fstat(fd, &st); 738 return (major(st.st_rdev) == 1 && (minor(st.st_rdev) == 3 /* null */ || 739 minor(st.st_rdev) == 5 /* zero */)); 740 } 741 #endif 742 743 static void 744 note_dev_error(int err, int fd) 745 { 746 #ifdef __linux__ 747 if (err == EINVAL && is_dev_nullzero(fd)) { 748 (void) fprintf(stderr, 749 gettext("Error: Writing directly to /dev/{null,zero} files" 750 " on certain kernels is not currently implemented.\n" 751 "(As a workaround, " 752 "try \"zfs send [...] | cat > /dev/null\")\n")); 753 } 754 #endif 755 } 756 757 static int 758 zfs_mount_and_share(libzfs_handle_t *hdl, const char *dataset, zfs_type_t type) 759 { 760 zfs_handle_t *zhp = NULL; 761 int ret = 0; 762 763 zhp = zfs_open(hdl, dataset, type); 764 if (zhp == NULL) 765 return (1); 766 767 /* 768 * Volumes may neither be mounted or shared. Potentially in the 769 * future filesystems detected on these volumes could be mounted. 770 */ 771 if (zfs_get_type(zhp) == ZFS_TYPE_VOLUME) { 772 zfs_close(zhp); 773 return (0); 774 } 775 776 /* 777 * Mount and/or share the new filesystem as appropriate. We provide a 778 * verbose error message to let the user know that their filesystem was 779 * in fact created, even if we failed to mount or share it. 780 * 781 * If the user doesn't want the dataset automatically mounted, then 782 * skip the mount/share step 783 */ 784 if (zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, type, B_FALSE) && 785 zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON) { 786 if (zfs_mount_delegation_check()) { 787 (void) fprintf(stderr, gettext("filesystem " 788 "successfully created, but it may only be " 789 "mounted by root\n")); 790 ret = 1; 791 } else if (zfs_mount(zhp, NULL, 0) != 0) { 792 (void) fprintf(stderr, gettext("filesystem " 793 "successfully created, but not mounted\n")); 794 ret = 1; 795 } else if (zfs_share(zhp) != 0) { 796 (void) fprintf(stderr, gettext("filesystem " 797 "successfully created, but not shared\n")); 798 ret = 1; 799 } 800 zfs_commit_all_shares(); 801 } 802 803 zfs_close(zhp); 804 805 return (ret); 806 } 807 808 /* 809 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 810 * 811 * Given an existing dataset, create a writable copy whose initial contents 812 * are the same as the source. The newly created dataset maintains a 813 * dependency on the original; the original cannot be destroyed so long as 814 * the clone exists. 815 * 816 * The '-p' flag creates all the non-existing ancestors of the target first. 817 */ 818 static int 819 zfs_do_clone(int argc, char **argv) 820 { 821 zfs_handle_t *zhp = NULL; 822 boolean_t parents = B_FALSE; 823 nvlist_t *props; 824 int ret = 0; 825 int c; 826 827 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 828 nomem(); 829 830 /* check options */ 831 while ((c = getopt(argc, argv, "o:p")) != -1) { 832 switch (c) { 833 case 'o': 834 if (!parseprop(props, optarg)) { 835 nvlist_free(props); 836 return (1); 837 } 838 break; 839 case 'p': 840 parents = B_TRUE; 841 break; 842 case '?': 843 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 844 optopt); 845 goto usage; 846 } 847 } 848 849 argc -= optind; 850 argv += optind; 851 852 /* check number of arguments */ 853 if (argc < 1) { 854 (void) fprintf(stderr, gettext("missing source dataset " 855 "argument\n")); 856 goto usage; 857 } 858 if (argc < 2) { 859 (void) fprintf(stderr, gettext("missing target dataset " 860 "argument\n")); 861 goto usage; 862 } 863 if (argc > 2) { 864 (void) fprintf(stderr, gettext("too many arguments\n")); 865 goto usage; 866 } 867 868 /* open the source dataset */ 869 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) { 870 nvlist_free(props); 871 return (1); 872 } 873 874 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 875 ZFS_TYPE_VOLUME)) { 876 /* 877 * Now create the ancestors of the target dataset. If the 878 * target already exists and '-p' option was used we should not 879 * complain. 880 */ 881 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 882 ZFS_TYPE_VOLUME)) { 883 zfs_close(zhp); 884 nvlist_free(props); 885 return (0); 886 } 887 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) { 888 zfs_close(zhp); 889 nvlist_free(props); 890 return (1); 891 } 892 } 893 894 /* pass to libzfs */ 895 ret = zfs_clone(zhp, argv[1], props); 896 897 /* create the mountpoint if necessary */ 898 if (ret == 0) { 899 if (log_history) { 900 (void) zpool_log_history(g_zfs, history_str); 901 log_history = B_FALSE; 902 } 903 904 ret = zfs_mount_and_share(g_zfs, argv[1], ZFS_TYPE_DATASET); 905 } 906 907 zfs_close(zhp); 908 nvlist_free(props); 909 910 return (!!ret); 911 912 usage: 913 ASSERT3P(zhp, ==, NULL); 914 nvlist_free(props); 915 usage(B_FALSE); 916 return (-1); 917 } 918 919 /* 920 * Return a default volblocksize for the pool which always uses more than 921 * half of the data sectors. This primarily applies to dRAID which always 922 * writes full stripe widths. 923 */ 924 static uint64_t 925 default_volblocksize(zpool_handle_t *zhp, nvlist_t *props) 926 { 927 uint64_t volblocksize, asize = SPA_MINBLOCKSIZE; 928 nvlist_t *tree, **vdevs; 929 uint_t nvdevs; 930 931 nvlist_t *config = zpool_get_config(zhp, NULL); 932 933 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &tree) != 0 || 934 nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, 935 &vdevs, &nvdevs) != 0) { 936 return (ZVOL_DEFAULT_BLOCKSIZE); 937 } 938 939 for (int i = 0; i < nvdevs; i++) { 940 nvlist_t *nv = vdevs[i]; 941 uint64_t ashift, ndata, nparity; 942 943 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASHIFT, &ashift) != 0) 944 continue; 945 946 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DRAID_NDATA, 947 &ndata) == 0) { 948 /* dRAID minimum allocation width */ 949 asize = MAX(asize, ndata * (1ULL << ashift)); 950 } else if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY, 951 &nparity) == 0) { 952 /* raidz minimum allocation width */ 953 if (nparity == 1) 954 asize = MAX(asize, 2 * (1ULL << ashift)); 955 else 956 asize = MAX(asize, 4 * (1ULL << ashift)); 957 } else { 958 /* mirror or (non-redundant) leaf vdev */ 959 asize = MAX(asize, 1ULL << ashift); 960 } 961 } 962 963 /* 964 * Calculate the target volblocksize such that more than half 965 * of the asize is used. The following table is for 4k sectors. 966 * 967 * n asize blksz used | n asize blksz used 968 * -------------------------+--------------------------------- 969 * 1 4,096 8,192 100% | 9 36,864 32,768 88% 970 * 2 8,192 8,192 100% | 10 40,960 32,768 80% 971 * 3 12,288 8,192 66% | 11 45,056 32,768 72% 972 * 4 16,384 16,384 100% | 12 49,152 32,768 66% 973 * 5 20,480 16,384 80% | 13 53,248 32,768 61% 974 * 6 24,576 16,384 66% | 14 57,344 32,768 57% 975 * 7 28,672 16,384 57% | 15 61,440 32,768 53% 976 * 8 32,768 32,768 100% | 16 65,536 65,636 100% 977 * 978 * This is primarily a concern for dRAID which always allocates 979 * a full stripe width. For dRAID the default stripe width is 980 * n=8 in which case the volblocksize is set to 32k. Ignoring 981 * compression there are no unused sectors. This same reasoning 982 * applies to raidz[2,3] so target 4 sectors to minimize waste. 983 */ 984 uint64_t tgt_volblocksize = ZVOL_DEFAULT_BLOCKSIZE; 985 while (tgt_volblocksize * 2 <= asize) 986 tgt_volblocksize *= 2; 987 988 const char *prop = zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE); 989 if (nvlist_lookup_uint64(props, prop, &volblocksize) == 0) { 990 991 /* Issue a warning when a non-optimal size is requested. */ 992 if (volblocksize < ZVOL_DEFAULT_BLOCKSIZE) { 993 (void) fprintf(stderr, gettext("Warning: " 994 "volblocksize (%llu) is less than the default " 995 "minimum block size (%llu).\nTo reduce wasted " 996 "space a volblocksize of %llu is recommended.\n"), 997 (u_longlong_t)volblocksize, 998 (u_longlong_t)ZVOL_DEFAULT_BLOCKSIZE, 999 (u_longlong_t)tgt_volblocksize); 1000 } else if (volblocksize < tgt_volblocksize) { 1001 (void) fprintf(stderr, gettext("Warning: " 1002 "volblocksize (%llu) is much less than the " 1003 "minimum allocation\nunit (%llu), which wastes " 1004 "at least %llu%% of space. To reduce wasted " 1005 "space,\nuse a larger volblocksize (%llu is " 1006 "recommended), fewer dRAID data disks\n" 1007 "per group, or smaller sector size (ashift).\n"), 1008 (u_longlong_t)volblocksize, (u_longlong_t)asize, 1009 (u_longlong_t)((100 * (asize - volblocksize)) / 1010 asize), (u_longlong_t)tgt_volblocksize); 1011 } 1012 } else { 1013 volblocksize = tgt_volblocksize; 1014 fnvlist_add_uint64(props, prop, volblocksize); 1015 } 1016 1017 return (volblocksize); 1018 } 1019 1020 /* 1021 * zfs create [-Pnpv] [-o prop=value] ... fs 1022 * zfs create [-Pnpsv] [-b blocksize] [-o prop=value] ... -V vol size 1023 * 1024 * Create a new dataset. This command can be used to create filesystems 1025 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 1026 * For volumes, the user must specify a size to be used. 1027 * 1028 * The '-s' flag applies only to volumes, and indicates that we should not try 1029 * to set the reservation for this volume. By default we set a reservation 1030 * equal to the size for any volume. For pools with SPA_VERSION >= 1031 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 1032 * 1033 * The '-p' flag creates all the non-existing ancestors of the target first. 1034 * 1035 * The '-n' flag is no-op (dry run) mode. This will perform a user-space sanity 1036 * check of arguments and properties, but does not check for permissions, 1037 * available space, etc. 1038 * 1039 * The '-u' flag prevents the newly created file system from being mounted. 1040 * 1041 * The '-v' flag is for verbose output. 1042 * 1043 * The '-P' flag is used for parseable output. It implies '-v'. 1044 */ 1045 static int 1046 zfs_do_create(int argc, char **argv) 1047 { 1048 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 1049 zpool_handle_t *zpool_handle = NULL; 1050 nvlist_t *real_props = NULL; 1051 uint64_t volsize = 0; 1052 int c; 1053 boolean_t noreserve = B_FALSE; 1054 boolean_t bflag = B_FALSE; 1055 boolean_t parents = B_FALSE; 1056 boolean_t dryrun = B_FALSE; 1057 boolean_t nomount = B_FALSE; 1058 boolean_t verbose = B_FALSE; 1059 boolean_t parseable = B_FALSE; 1060 int ret = 1; 1061 nvlist_t *props; 1062 uint64_t intval; 1063 char *strval; 1064 1065 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 1066 nomem(); 1067 1068 /* check options */ 1069 while ((c = getopt(argc, argv, ":PV:b:nso:puv")) != -1) { 1070 switch (c) { 1071 case 'V': 1072 type = ZFS_TYPE_VOLUME; 1073 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 1074 (void) fprintf(stderr, gettext("bad volume " 1075 "size '%s': %s\n"), optarg, 1076 libzfs_error_description(g_zfs)); 1077 goto error; 1078 } 1079 1080 if (nvlist_add_uint64(props, 1081 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 1082 nomem(); 1083 volsize = intval; 1084 break; 1085 case 'P': 1086 verbose = B_TRUE; 1087 parseable = B_TRUE; 1088 break; 1089 case 'p': 1090 parents = B_TRUE; 1091 break; 1092 case 'b': 1093 bflag = B_TRUE; 1094 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 1095 (void) fprintf(stderr, gettext("bad volume " 1096 "block size '%s': %s\n"), optarg, 1097 libzfs_error_description(g_zfs)); 1098 goto error; 1099 } 1100 1101 if (nvlist_add_uint64(props, 1102 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 1103 intval) != 0) 1104 nomem(); 1105 break; 1106 case 'n': 1107 dryrun = B_TRUE; 1108 break; 1109 case 'o': 1110 if (!parseprop(props, optarg)) 1111 goto error; 1112 break; 1113 case 's': 1114 noreserve = B_TRUE; 1115 break; 1116 case 'u': 1117 nomount = B_TRUE; 1118 break; 1119 case 'v': 1120 verbose = B_TRUE; 1121 break; 1122 case ':': 1123 (void) fprintf(stderr, gettext("missing size " 1124 "argument\n")); 1125 goto badusage; 1126 case '?': 1127 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1128 optopt); 1129 goto badusage; 1130 } 1131 } 1132 1133 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 1134 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 1135 "used when creating a volume\n")); 1136 goto badusage; 1137 } 1138 if (nomount && type != ZFS_TYPE_FILESYSTEM) { 1139 (void) fprintf(stderr, gettext("'-u' can only be " 1140 "used when creating a filesystem\n")); 1141 goto badusage; 1142 } 1143 1144 argc -= optind; 1145 argv += optind; 1146 1147 /* check number of arguments */ 1148 if (argc == 0) { 1149 (void) fprintf(stderr, gettext("missing %s argument\n"), 1150 zfs_type_to_name(type)); 1151 goto badusage; 1152 } 1153 if (argc > 1) { 1154 (void) fprintf(stderr, gettext("too many arguments\n")); 1155 goto badusage; 1156 } 1157 1158 if (dryrun || type == ZFS_TYPE_VOLUME) { 1159 char msg[ZFS_MAX_DATASET_NAME_LEN * 2]; 1160 char *p; 1161 1162 if ((p = strchr(argv[0], '/')) != NULL) 1163 *p = '\0'; 1164 zpool_handle = zpool_open(g_zfs, argv[0]); 1165 if (p != NULL) 1166 *p = '/'; 1167 if (zpool_handle == NULL) 1168 goto error; 1169 1170 (void) snprintf(msg, sizeof (msg), 1171 dryrun ? gettext("cannot verify '%s'") : 1172 gettext("cannot create '%s'"), argv[0]); 1173 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 1174 props, 0, NULL, zpool_handle, B_TRUE, msg)) == NULL) { 1175 zpool_close(zpool_handle); 1176 goto error; 1177 } 1178 } 1179 1180 if (type == ZFS_TYPE_VOLUME) { 1181 const char *prop = zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE); 1182 uint64_t volblocksize = default_volblocksize(zpool_handle, 1183 real_props); 1184 1185 if (volblocksize != ZVOL_DEFAULT_BLOCKSIZE && 1186 nvlist_lookup_string(props, prop, &strval) != 0) { 1187 if (asprintf(&strval, "%llu", 1188 (u_longlong_t)volblocksize) == -1) 1189 nomem(); 1190 nvlist_add_string(props, prop, strval); 1191 free(strval); 1192 } 1193 1194 /* 1195 * If volsize is not a multiple of volblocksize, round it 1196 * up to the nearest multiple of the volblocksize. 1197 */ 1198 if (volsize % volblocksize) { 1199 volsize = P2ROUNDUP_TYPED(volsize, volblocksize, 1200 uint64_t); 1201 1202 if (nvlist_add_uint64(props, 1203 zfs_prop_to_name(ZFS_PROP_VOLSIZE), volsize) != 0) { 1204 nvlist_free(props); 1205 nomem(); 1206 } 1207 } 1208 } 1209 1210 if (type == ZFS_TYPE_VOLUME && !noreserve) { 1211 uint64_t spa_version; 1212 zfs_prop_t resv_prop; 1213 1214 spa_version = zpool_get_prop_int(zpool_handle, 1215 ZPOOL_PROP_VERSION, NULL); 1216 if (spa_version >= SPA_VERSION_REFRESERVATION) 1217 resv_prop = ZFS_PROP_REFRESERVATION; 1218 else 1219 resv_prop = ZFS_PROP_RESERVATION; 1220 1221 volsize = zvol_volsize_to_reservation(zpool_handle, volsize, 1222 real_props); 1223 1224 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 1225 &strval) != 0) { 1226 if (nvlist_add_uint64(props, 1227 zfs_prop_to_name(resv_prop), volsize) != 0) { 1228 nvlist_free(props); 1229 nomem(); 1230 } 1231 } 1232 } 1233 if (zpool_handle != NULL) { 1234 zpool_close(zpool_handle); 1235 nvlist_free(real_props); 1236 } 1237 1238 if (parents && zfs_name_valid(argv[0], type)) { 1239 /* 1240 * Now create the ancestors of target dataset. If the target 1241 * already exists and '-p' option was used we should not 1242 * complain. 1243 */ 1244 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 1245 ret = 0; 1246 goto error; 1247 } 1248 if (verbose) { 1249 (void) printf(parseable ? "create_ancestors\t%s\n" : 1250 dryrun ? "would create ancestors of %s\n" : 1251 "create ancestors of %s\n", argv[0]); 1252 } 1253 if (!dryrun) { 1254 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) { 1255 goto error; 1256 } 1257 } 1258 } 1259 1260 if (verbose) { 1261 nvpair_t *nvp = NULL; 1262 (void) printf(parseable ? "create\t%s\n" : 1263 dryrun ? "would create %s\n" : "create %s\n", argv[0]); 1264 while ((nvp = nvlist_next_nvpair(props, nvp)) != NULL) { 1265 uint64_t uval; 1266 char *sval; 1267 1268 switch (nvpair_type(nvp)) { 1269 case DATA_TYPE_UINT64: 1270 VERIFY0(nvpair_value_uint64(nvp, &uval)); 1271 (void) printf(parseable ? 1272 "property\t%s\t%llu\n" : "\t%s=%llu\n", 1273 nvpair_name(nvp), (u_longlong_t)uval); 1274 break; 1275 case DATA_TYPE_STRING: 1276 VERIFY0(nvpair_value_string(nvp, &sval)); 1277 (void) printf(parseable ? 1278 "property\t%s\t%s\n" : "\t%s=%s\n", 1279 nvpair_name(nvp), sval); 1280 break; 1281 default: 1282 (void) fprintf(stderr, "property '%s' " 1283 "has illegal type %d\n", 1284 nvpair_name(nvp), nvpair_type(nvp)); 1285 abort(); 1286 } 1287 } 1288 } 1289 if (dryrun) { 1290 ret = 0; 1291 goto error; 1292 } 1293 1294 /* pass to libzfs */ 1295 if (zfs_create(g_zfs, argv[0], type, props) != 0) 1296 goto error; 1297 1298 if (log_history) { 1299 (void) zpool_log_history(g_zfs, history_str); 1300 log_history = B_FALSE; 1301 } 1302 1303 if (nomount) { 1304 ret = 0; 1305 goto error; 1306 } 1307 1308 ret = zfs_mount_and_share(g_zfs, argv[0], ZFS_TYPE_DATASET); 1309 error: 1310 nvlist_free(props); 1311 return (ret); 1312 badusage: 1313 nvlist_free(props); 1314 usage(B_FALSE); 1315 return (2); 1316 } 1317 1318 /* 1319 * zfs destroy [-rRf] <fs, vol> 1320 * zfs destroy [-rRd] <snap> 1321 * 1322 * -r Recursively destroy all children 1323 * -R Recursively destroy all dependents, including clones 1324 * -f Force unmounting of any dependents 1325 * -d If we can't destroy now, mark for deferred destruction 1326 * 1327 * Destroys the given dataset. By default, it will unmount any filesystems, 1328 * and refuse to destroy a dataset that has any dependents. A dependent can 1329 * either be a child, or a clone of a child. 1330 */ 1331 typedef struct destroy_cbdata { 1332 boolean_t cb_first; 1333 boolean_t cb_force; 1334 boolean_t cb_recurse; 1335 boolean_t cb_error; 1336 boolean_t cb_doclones; 1337 zfs_handle_t *cb_target; 1338 boolean_t cb_defer_destroy; 1339 boolean_t cb_verbose; 1340 boolean_t cb_parsable; 1341 boolean_t cb_dryrun; 1342 nvlist_t *cb_nvl; 1343 nvlist_t *cb_batchedsnaps; 1344 1345 /* first snap in contiguous run */ 1346 char *cb_firstsnap; 1347 /* previous snap in contiguous run */ 1348 char *cb_prevsnap; 1349 int64_t cb_snapused; 1350 char *cb_snapspec; 1351 char *cb_bookmark; 1352 uint64_t cb_snap_count; 1353 } destroy_cbdata_t; 1354 1355 /* 1356 * Check for any dependents based on the '-r' or '-R' flags. 1357 */ 1358 static int 1359 destroy_check_dependent(zfs_handle_t *zhp, void *data) 1360 { 1361 destroy_cbdata_t *cbp = data; 1362 const char *tname = zfs_get_name(cbp->cb_target); 1363 const char *name = zfs_get_name(zhp); 1364 1365 if (strncmp(tname, name, strlen(tname)) == 0 && 1366 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 1367 /* 1368 * This is a direct descendant, not a clone somewhere else in 1369 * the hierarchy. 1370 */ 1371 if (cbp->cb_recurse) 1372 goto out; 1373 1374 if (cbp->cb_first) { 1375 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1376 "%s has children\n"), 1377 zfs_get_name(cbp->cb_target), 1378 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1379 (void) fprintf(stderr, gettext("use '-r' to destroy " 1380 "the following datasets:\n")); 1381 cbp->cb_first = B_FALSE; 1382 cbp->cb_error = B_TRUE; 1383 } 1384 1385 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1386 } else { 1387 /* 1388 * This is a clone. We only want to report this if the '-r' 1389 * wasn't specified, or the target is a snapshot. 1390 */ 1391 if (!cbp->cb_recurse && 1392 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1393 goto out; 1394 1395 if (cbp->cb_first) { 1396 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1397 "%s has dependent clones\n"), 1398 zfs_get_name(cbp->cb_target), 1399 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1400 (void) fprintf(stderr, gettext("use '-R' to destroy " 1401 "the following datasets:\n")); 1402 cbp->cb_first = B_FALSE; 1403 cbp->cb_error = B_TRUE; 1404 cbp->cb_dryrun = B_TRUE; 1405 } 1406 1407 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1408 } 1409 1410 out: 1411 zfs_close(zhp); 1412 return (0); 1413 } 1414 1415 static int 1416 destroy_batched(destroy_cbdata_t *cb) 1417 { 1418 int error = zfs_destroy_snaps_nvl(g_zfs, 1419 cb->cb_batchedsnaps, B_FALSE); 1420 fnvlist_free(cb->cb_batchedsnaps); 1421 cb->cb_batchedsnaps = fnvlist_alloc(); 1422 return (error); 1423 } 1424 1425 static int 1426 destroy_callback(zfs_handle_t *zhp, void *data) 1427 { 1428 destroy_cbdata_t *cb = data; 1429 const char *name = zfs_get_name(zhp); 1430 int error; 1431 1432 if (cb->cb_verbose) { 1433 if (cb->cb_parsable) { 1434 (void) printf("destroy\t%s\n", name); 1435 } else if (cb->cb_dryrun) { 1436 (void) printf(gettext("would destroy %s\n"), 1437 name); 1438 } else { 1439 (void) printf(gettext("will destroy %s\n"), 1440 name); 1441 } 1442 } 1443 1444 /* 1445 * Ignore pools (which we've already flagged as an error before getting 1446 * here). 1447 */ 1448 if (strchr(zfs_get_name(zhp), '/') == NULL && 1449 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1450 zfs_close(zhp); 1451 return (0); 1452 } 1453 if (cb->cb_dryrun) { 1454 zfs_close(zhp); 1455 return (0); 1456 } 1457 1458 /* 1459 * We batch up all contiguous snapshots (even of different 1460 * filesystems) and destroy them with one ioctl. We can't 1461 * simply do all snap deletions and then all fs deletions, 1462 * because we must delete a clone before its origin. 1463 */ 1464 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1465 cb->cb_snap_count++; 1466 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1467 if (cb->cb_snap_count % 10 == 0 && cb->cb_defer_destroy) 1468 error = destroy_batched(cb); 1469 } else { 1470 error = destroy_batched(cb); 1471 if (error != 0 || 1472 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1473 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1474 zfs_close(zhp); 1475 /* 1476 * When performing a recursive destroy we ignore errors 1477 * so that the recursive destroy could continue 1478 * destroying past problem datasets 1479 */ 1480 if (cb->cb_recurse) { 1481 cb->cb_error = B_TRUE; 1482 return (0); 1483 } 1484 return (-1); 1485 } 1486 } 1487 1488 zfs_close(zhp); 1489 return (0); 1490 } 1491 1492 static int 1493 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1494 { 1495 destroy_cbdata_t *cb = arg; 1496 const char *name = zfs_get_name(zhp); 1497 int err = 0; 1498 1499 if (nvlist_exists(cb->cb_nvl, name)) { 1500 if (cb->cb_firstsnap == NULL) 1501 cb->cb_firstsnap = strdup(name); 1502 if (cb->cb_prevsnap != NULL) 1503 free(cb->cb_prevsnap); 1504 /* this snap continues the current range */ 1505 cb->cb_prevsnap = strdup(name); 1506 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1507 nomem(); 1508 if (cb->cb_verbose) { 1509 if (cb->cb_parsable) { 1510 (void) printf("destroy\t%s\n", name); 1511 } else if (cb->cb_dryrun) { 1512 (void) printf(gettext("would destroy %s\n"), 1513 name); 1514 } else { 1515 (void) printf(gettext("will destroy %s\n"), 1516 name); 1517 } 1518 } 1519 } else if (cb->cb_firstsnap != NULL) { 1520 /* end of this range */ 1521 uint64_t used = 0; 1522 err = lzc_snaprange_space(cb->cb_firstsnap, 1523 cb->cb_prevsnap, &used); 1524 cb->cb_snapused += used; 1525 free(cb->cb_firstsnap); 1526 cb->cb_firstsnap = NULL; 1527 free(cb->cb_prevsnap); 1528 cb->cb_prevsnap = NULL; 1529 } 1530 zfs_close(zhp); 1531 return (err); 1532 } 1533 1534 static int 1535 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1536 { 1537 int err; 1538 assert(cb->cb_firstsnap == NULL); 1539 assert(cb->cb_prevsnap == NULL); 1540 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb, 0, 0); 1541 if (cb->cb_firstsnap != NULL) { 1542 uint64_t used = 0; 1543 if (err == 0) { 1544 err = lzc_snaprange_space(cb->cb_firstsnap, 1545 cb->cb_prevsnap, &used); 1546 } 1547 cb->cb_snapused += used; 1548 free(cb->cb_firstsnap); 1549 cb->cb_firstsnap = NULL; 1550 free(cb->cb_prevsnap); 1551 cb->cb_prevsnap = NULL; 1552 } 1553 return (err); 1554 } 1555 1556 static int 1557 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1558 { 1559 destroy_cbdata_t *cb = arg; 1560 int err = 0; 1561 1562 /* Check for clones. */ 1563 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1564 cb->cb_target = zhp; 1565 cb->cb_first = B_TRUE; 1566 err = zfs_iter_dependents(zhp, B_TRUE, 1567 destroy_check_dependent, cb); 1568 } 1569 1570 if (err == 0) { 1571 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1572 nomem(); 1573 } 1574 zfs_close(zhp); 1575 return (err); 1576 } 1577 1578 static int 1579 gather_snapshots(zfs_handle_t *zhp, void *arg) 1580 { 1581 destroy_cbdata_t *cb = arg; 1582 int err = 0; 1583 1584 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1585 if (err == ENOENT) 1586 err = 0; 1587 if (err != 0) 1588 goto out; 1589 1590 if (cb->cb_verbose) { 1591 err = destroy_print_snapshots(zhp, cb); 1592 if (err != 0) 1593 goto out; 1594 } 1595 1596 if (cb->cb_recurse) 1597 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1598 1599 out: 1600 zfs_close(zhp); 1601 return (err); 1602 } 1603 1604 static int 1605 destroy_clones(destroy_cbdata_t *cb) 1606 { 1607 nvpair_t *pair; 1608 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1609 pair != NULL; 1610 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1611 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1612 ZFS_TYPE_SNAPSHOT); 1613 if (zhp != NULL) { 1614 boolean_t defer = cb->cb_defer_destroy; 1615 int err; 1616 1617 /* 1618 * We can't defer destroy non-snapshots, so set it to 1619 * false while destroying the clones. 1620 */ 1621 cb->cb_defer_destroy = B_FALSE; 1622 err = zfs_iter_dependents(zhp, B_FALSE, 1623 destroy_callback, cb); 1624 cb->cb_defer_destroy = defer; 1625 zfs_close(zhp); 1626 if (err != 0) 1627 return (err); 1628 } 1629 } 1630 return (0); 1631 } 1632 1633 static int 1634 zfs_do_destroy(int argc, char **argv) 1635 { 1636 destroy_cbdata_t cb = { 0 }; 1637 int rv = 0; 1638 int err = 0; 1639 int c; 1640 zfs_handle_t *zhp = NULL; 1641 char *at, *pound; 1642 zfs_type_t type = ZFS_TYPE_DATASET; 1643 1644 /* check options */ 1645 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1646 switch (c) { 1647 case 'v': 1648 cb.cb_verbose = B_TRUE; 1649 break; 1650 case 'p': 1651 cb.cb_verbose = B_TRUE; 1652 cb.cb_parsable = B_TRUE; 1653 break; 1654 case 'n': 1655 cb.cb_dryrun = B_TRUE; 1656 break; 1657 case 'd': 1658 cb.cb_defer_destroy = B_TRUE; 1659 type = ZFS_TYPE_SNAPSHOT; 1660 break; 1661 case 'f': 1662 cb.cb_force = B_TRUE; 1663 break; 1664 case 'r': 1665 cb.cb_recurse = B_TRUE; 1666 break; 1667 case 'R': 1668 cb.cb_recurse = B_TRUE; 1669 cb.cb_doclones = B_TRUE; 1670 break; 1671 case '?': 1672 default: 1673 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1674 optopt); 1675 usage(B_FALSE); 1676 } 1677 } 1678 1679 argc -= optind; 1680 argv += optind; 1681 1682 /* check number of arguments */ 1683 if (argc == 0) { 1684 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1685 usage(B_FALSE); 1686 } 1687 if (argc > 1) { 1688 (void) fprintf(stderr, gettext("too many arguments\n")); 1689 usage(B_FALSE); 1690 } 1691 1692 at = strchr(argv[0], '@'); 1693 pound = strchr(argv[0], '#'); 1694 if (at != NULL) { 1695 1696 /* Build the list of snaps to destroy in cb_nvl. */ 1697 cb.cb_nvl = fnvlist_alloc(); 1698 1699 *at = '\0'; 1700 zhp = zfs_open(g_zfs, argv[0], 1701 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1702 if (zhp == NULL) { 1703 nvlist_free(cb.cb_nvl); 1704 return (1); 1705 } 1706 1707 cb.cb_snapspec = at + 1; 1708 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1709 cb.cb_error) { 1710 rv = 1; 1711 goto out; 1712 } 1713 1714 if (nvlist_empty(cb.cb_nvl)) { 1715 (void) fprintf(stderr, gettext("could not find any " 1716 "snapshots to destroy; check snapshot names.\n")); 1717 rv = 1; 1718 goto out; 1719 } 1720 1721 if (cb.cb_verbose) { 1722 char buf[16]; 1723 zfs_nicebytes(cb.cb_snapused, buf, sizeof (buf)); 1724 if (cb.cb_parsable) { 1725 (void) printf("reclaim\t%llu\n", 1726 (u_longlong_t)cb.cb_snapused); 1727 } else if (cb.cb_dryrun) { 1728 (void) printf(gettext("would reclaim %s\n"), 1729 buf); 1730 } else { 1731 (void) printf(gettext("will reclaim %s\n"), 1732 buf); 1733 } 1734 } 1735 1736 if (!cb.cb_dryrun) { 1737 if (cb.cb_doclones) { 1738 cb.cb_batchedsnaps = fnvlist_alloc(); 1739 err = destroy_clones(&cb); 1740 if (err == 0) { 1741 err = zfs_destroy_snaps_nvl(g_zfs, 1742 cb.cb_batchedsnaps, B_FALSE); 1743 } 1744 if (err != 0) { 1745 rv = 1; 1746 goto out; 1747 } 1748 } 1749 if (err == 0) { 1750 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1751 cb.cb_defer_destroy); 1752 } 1753 } 1754 1755 if (err != 0) 1756 rv = 1; 1757 } else if (pound != NULL) { 1758 int err; 1759 nvlist_t *nvl; 1760 1761 if (cb.cb_dryrun) { 1762 (void) fprintf(stderr, 1763 "dryrun is not supported with bookmark\n"); 1764 return (-1); 1765 } 1766 1767 if (cb.cb_defer_destroy) { 1768 (void) fprintf(stderr, 1769 "defer destroy is not supported with bookmark\n"); 1770 return (-1); 1771 } 1772 1773 if (cb.cb_recurse) { 1774 (void) fprintf(stderr, 1775 "recursive is not supported with bookmark\n"); 1776 return (-1); 1777 } 1778 1779 /* 1780 * Unfortunately, zfs_bookmark() doesn't honor the 1781 * casesensitivity setting. However, we can't simply 1782 * remove this check, because lzc_destroy_bookmarks() 1783 * ignores non-existent bookmarks, so this is necessary 1784 * to get a proper error message. 1785 */ 1786 if (!zfs_bookmark_exists(argv[0])) { 1787 (void) fprintf(stderr, gettext("bookmark '%s' " 1788 "does not exist.\n"), argv[0]); 1789 return (1); 1790 } 1791 1792 nvl = fnvlist_alloc(); 1793 fnvlist_add_boolean(nvl, argv[0]); 1794 1795 err = lzc_destroy_bookmarks(nvl, NULL); 1796 if (err != 0) { 1797 (void) zfs_standard_error(g_zfs, err, 1798 "cannot destroy bookmark"); 1799 } 1800 1801 nvlist_free(nvl); 1802 1803 return (err); 1804 } else { 1805 /* Open the given dataset */ 1806 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1807 return (1); 1808 1809 cb.cb_target = zhp; 1810 1811 /* 1812 * Perform an explicit check for pools before going any further. 1813 */ 1814 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1815 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1816 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1817 "operation does not apply to pools\n"), 1818 zfs_get_name(zhp)); 1819 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1820 "%s' to destroy all datasets in the pool\n"), 1821 zfs_get_name(zhp)); 1822 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1823 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1824 rv = 1; 1825 goto out; 1826 } 1827 1828 /* 1829 * Check for any dependents and/or clones. 1830 */ 1831 cb.cb_first = B_TRUE; 1832 if (!cb.cb_doclones && 1833 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1834 &cb) != 0) { 1835 rv = 1; 1836 goto out; 1837 } 1838 1839 if (cb.cb_error) { 1840 rv = 1; 1841 goto out; 1842 } 1843 cb.cb_batchedsnaps = fnvlist_alloc(); 1844 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1845 &cb) != 0) { 1846 rv = 1; 1847 goto out; 1848 } 1849 1850 /* 1851 * Do the real thing. The callback will close the 1852 * handle regardless of whether it succeeds or not. 1853 */ 1854 err = destroy_callback(zhp, &cb); 1855 zhp = NULL; 1856 if (err == 0) { 1857 err = zfs_destroy_snaps_nvl(g_zfs, 1858 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1859 } 1860 if (err != 0 || cb.cb_error == B_TRUE) 1861 rv = 1; 1862 } 1863 1864 out: 1865 fnvlist_free(cb.cb_batchedsnaps); 1866 fnvlist_free(cb.cb_nvl); 1867 if (zhp != NULL) 1868 zfs_close(zhp); 1869 return (rv); 1870 } 1871 1872 static boolean_t 1873 is_recvd_column(zprop_get_cbdata_t *cbp) 1874 { 1875 int i; 1876 zfs_get_column_t col; 1877 1878 for (i = 0; i < ZFS_GET_NCOLS && 1879 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1880 if (col == GET_COL_RECVD) 1881 return (B_TRUE); 1882 return (B_FALSE); 1883 } 1884 1885 /* 1886 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1887 * < all | property[,property]... > < fs | snap | vol > ... 1888 * 1889 * -r recurse over any child datasets 1890 * -H scripted mode. Headers are stripped, and fields are separated 1891 * by tabs instead of spaces. 1892 * -o Set of fields to display. One of "name,property,value, 1893 * received,source". Default is "name,property,value,source". 1894 * "all" is an alias for all five. 1895 * -s Set of sources to allow. One of 1896 * "local,default,inherited,received,temporary,none". Default is 1897 * all six. 1898 * -p Display values in parsable (literal) format. 1899 * 1900 * Prints properties for the given datasets. The user can control which 1901 * columns to display as well as which property types to allow. 1902 */ 1903 1904 /* 1905 * Invoked to display the properties for a single dataset. 1906 */ 1907 static int 1908 get_callback(zfs_handle_t *zhp, void *data) 1909 { 1910 char buf[ZFS_MAXPROPLEN]; 1911 char rbuf[ZFS_MAXPROPLEN]; 1912 zprop_source_t sourcetype; 1913 char source[ZFS_MAX_DATASET_NAME_LEN]; 1914 zprop_get_cbdata_t *cbp = data; 1915 nvlist_t *user_props = zfs_get_user_props(zhp); 1916 zprop_list_t *pl = cbp->cb_proplist; 1917 nvlist_t *propval; 1918 char *strval; 1919 char *sourceval; 1920 boolean_t received = is_recvd_column(cbp); 1921 1922 for (; pl != NULL; pl = pl->pl_next) { 1923 char *recvdval = NULL; 1924 /* 1925 * Skip the special fake placeholder. This will also skip over 1926 * the name property when 'all' is specified. 1927 */ 1928 if (pl->pl_prop == ZFS_PROP_NAME && 1929 pl == cbp->cb_proplist) 1930 continue; 1931 1932 if (pl->pl_prop != ZPROP_INVAL) { 1933 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1934 sizeof (buf), &sourcetype, source, 1935 sizeof (source), 1936 cbp->cb_literal) != 0) { 1937 if (pl->pl_all) 1938 continue; 1939 if (!zfs_prop_valid_for_type(pl->pl_prop, 1940 ZFS_TYPE_DATASET, B_FALSE)) { 1941 (void) fprintf(stderr, 1942 gettext("No such property '%s'\n"), 1943 zfs_prop_to_name(pl->pl_prop)); 1944 continue; 1945 } 1946 sourcetype = ZPROP_SRC_NONE; 1947 (void) strlcpy(buf, "-", sizeof (buf)); 1948 } 1949 1950 if (received && (zfs_prop_get_recvd(zhp, 1951 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1952 cbp->cb_literal) == 0)) 1953 recvdval = rbuf; 1954 1955 zprop_print_one_property(zfs_get_name(zhp), cbp, 1956 zfs_prop_to_name(pl->pl_prop), 1957 buf, sourcetype, source, recvdval); 1958 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1959 sourcetype = ZPROP_SRC_LOCAL; 1960 1961 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1962 buf, sizeof (buf), cbp->cb_literal) != 0) { 1963 sourcetype = ZPROP_SRC_NONE; 1964 (void) strlcpy(buf, "-", sizeof (buf)); 1965 } 1966 1967 zprop_print_one_property(zfs_get_name(zhp), cbp, 1968 pl->pl_user_prop, buf, sourcetype, source, NULL); 1969 } else if (zfs_prop_written(pl->pl_user_prop)) { 1970 sourcetype = ZPROP_SRC_LOCAL; 1971 1972 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1973 buf, sizeof (buf), cbp->cb_literal) != 0) { 1974 sourcetype = ZPROP_SRC_NONE; 1975 (void) strlcpy(buf, "-", sizeof (buf)); 1976 } 1977 1978 zprop_print_one_property(zfs_get_name(zhp), cbp, 1979 pl->pl_user_prop, buf, sourcetype, source, NULL); 1980 } else { 1981 if (nvlist_lookup_nvlist(user_props, 1982 pl->pl_user_prop, &propval) != 0) { 1983 if (pl->pl_all) 1984 continue; 1985 sourcetype = ZPROP_SRC_NONE; 1986 strval = "-"; 1987 } else { 1988 verify(nvlist_lookup_string(propval, 1989 ZPROP_VALUE, &strval) == 0); 1990 verify(nvlist_lookup_string(propval, 1991 ZPROP_SOURCE, &sourceval) == 0); 1992 1993 if (strcmp(sourceval, 1994 zfs_get_name(zhp)) == 0) { 1995 sourcetype = ZPROP_SRC_LOCAL; 1996 } else if (strcmp(sourceval, 1997 ZPROP_SOURCE_VAL_RECVD) == 0) { 1998 sourcetype = ZPROP_SRC_RECEIVED; 1999 } else { 2000 sourcetype = ZPROP_SRC_INHERITED; 2001 (void) strlcpy(source, 2002 sourceval, sizeof (source)); 2003 } 2004 } 2005 2006 if (received && (zfs_prop_get_recvd(zhp, 2007 pl->pl_user_prop, rbuf, sizeof (rbuf), 2008 cbp->cb_literal) == 0)) 2009 recvdval = rbuf; 2010 2011 zprop_print_one_property(zfs_get_name(zhp), cbp, 2012 pl->pl_user_prop, strval, sourcetype, 2013 source, recvdval); 2014 } 2015 } 2016 2017 return (0); 2018 } 2019 2020 static int 2021 zfs_do_get(int argc, char **argv) 2022 { 2023 zprop_get_cbdata_t cb = { 0 }; 2024 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2025 int types = ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK; 2026 char *value, *fields; 2027 int ret = 0; 2028 int limit = 0; 2029 zprop_list_t fake_name = { 0 }; 2030 2031 /* 2032 * Set up default columns and sources. 2033 */ 2034 cb.cb_sources = ZPROP_SRC_ALL; 2035 cb.cb_columns[0] = GET_COL_NAME; 2036 cb.cb_columns[1] = GET_COL_PROPERTY; 2037 cb.cb_columns[2] = GET_COL_VALUE; 2038 cb.cb_columns[3] = GET_COL_SOURCE; 2039 cb.cb_type = ZFS_TYPE_DATASET; 2040 2041 /* check options */ 2042 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 2043 switch (c) { 2044 case 'p': 2045 cb.cb_literal = B_TRUE; 2046 break; 2047 case 'd': 2048 limit = parse_depth(optarg, &flags); 2049 break; 2050 case 'r': 2051 flags |= ZFS_ITER_RECURSE; 2052 break; 2053 case 'H': 2054 cb.cb_scripted = B_TRUE; 2055 break; 2056 case ':': 2057 (void) fprintf(stderr, gettext("missing argument for " 2058 "'%c' option\n"), optopt); 2059 usage(B_FALSE); 2060 break; 2061 case 'o': 2062 /* 2063 * Process the set of columns to display. We zero out 2064 * the structure to give us a blank slate. 2065 */ 2066 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 2067 i = 0; 2068 while (*optarg != '\0') { 2069 static char *col_subopts[] = 2070 { "name", "property", "value", "received", 2071 "source", "all", NULL }; 2072 2073 if (i == ZFS_GET_NCOLS) { 2074 (void) fprintf(stderr, gettext("too " 2075 "many fields given to -o " 2076 "option\n")); 2077 usage(B_FALSE); 2078 } 2079 2080 switch (getsubopt(&optarg, col_subopts, 2081 &value)) { 2082 case 0: 2083 cb.cb_columns[i++] = GET_COL_NAME; 2084 break; 2085 case 1: 2086 cb.cb_columns[i++] = GET_COL_PROPERTY; 2087 break; 2088 case 2: 2089 cb.cb_columns[i++] = GET_COL_VALUE; 2090 break; 2091 case 3: 2092 cb.cb_columns[i++] = GET_COL_RECVD; 2093 flags |= ZFS_ITER_RECVD_PROPS; 2094 break; 2095 case 4: 2096 cb.cb_columns[i++] = GET_COL_SOURCE; 2097 break; 2098 case 5: 2099 if (i > 0) { 2100 (void) fprintf(stderr, 2101 gettext("\"all\" conflicts " 2102 "with specific fields " 2103 "given to -o option\n")); 2104 usage(B_FALSE); 2105 } 2106 cb.cb_columns[0] = GET_COL_NAME; 2107 cb.cb_columns[1] = GET_COL_PROPERTY; 2108 cb.cb_columns[2] = GET_COL_VALUE; 2109 cb.cb_columns[3] = GET_COL_RECVD; 2110 cb.cb_columns[4] = GET_COL_SOURCE; 2111 flags |= ZFS_ITER_RECVD_PROPS; 2112 i = ZFS_GET_NCOLS; 2113 break; 2114 default: 2115 (void) fprintf(stderr, 2116 gettext("invalid column name " 2117 "'%s'\n"), value); 2118 usage(B_FALSE); 2119 } 2120 } 2121 break; 2122 2123 case 's': 2124 cb.cb_sources = 0; 2125 while (*optarg != '\0') { 2126 static char *source_subopts[] = { 2127 "local", "default", "inherited", 2128 "received", "temporary", "none", 2129 NULL }; 2130 2131 switch (getsubopt(&optarg, source_subopts, 2132 &value)) { 2133 case 0: 2134 cb.cb_sources |= ZPROP_SRC_LOCAL; 2135 break; 2136 case 1: 2137 cb.cb_sources |= ZPROP_SRC_DEFAULT; 2138 break; 2139 case 2: 2140 cb.cb_sources |= ZPROP_SRC_INHERITED; 2141 break; 2142 case 3: 2143 cb.cb_sources |= ZPROP_SRC_RECEIVED; 2144 break; 2145 case 4: 2146 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 2147 break; 2148 case 5: 2149 cb.cb_sources |= ZPROP_SRC_NONE; 2150 break; 2151 default: 2152 (void) fprintf(stderr, 2153 gettext("invalid source " 2154 "'%s'\n"), value); 2155 usage(B_FALSE); 2156 } 2157 } 2158 break; 2159 2160 case 't': 2161 types = 0; 2162 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 2163 while (*optarg != '\0') { 2164 static char *type_subopts[] = { "filesystem", 2165 "volume", "snapshot", "snap", "bookmark", 2166 "all", NULL }; 2167 2168 switch (getsubopt(&optarg, type_subopts, 2169 &value)) { 2170 case 0: 2171 types |= ZFS_TYPE_FILESYSTEM; 2172 break; 2173 case 1: 2174 types |= ZFS_TYPE_VOLUME; 2175 break; 2176 case 2: 2177 case 3: 2178 types |= ZFS_TYPE_SNAPSHOT; 2179 break; 2180 case 4: 2181 types |= ZFS_TYPE_BOOKMARK; 2182 break; 2183 case 5: 2184 types = ZFS_TYPE_DATASET | 2185 ZFS_TYPE_BOOKMARK; 2186 break; 2187 2188 default: 2189 (void) fprintf(stderr, 2190 gettext("invalid type '%s'\n"), 2191 value); 2192 usage(B_FALSE); 2193 } 2194 } 2195 break; 2196 2197 case '?': 2198 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2199 optopt); 2200 usage(B_FALSE); 2201 } 2202 } 2203 2204 argc -= optind; 2205 argv += optind; 2206 2207 if (argc < 1) { 2208 (void) fprintf(stderr, gettext("missing property " 2209 "argument\n")); 2210 usage(B_FALSE); 2211 } 2212 2213 fields = argv[0]; 2214 2215 /* 2216 * Handle users who want to get all snapshots or bookmarks 2217 * of a dataset (ex. 'zfs get -t snapshot refer <dataset>'). 2218 */ 2219 if ((types == ZFS_TYPE_SNAPSHOT || types == ZFS_TYPE_BOOKMARK) && 2220 argc > 1 && (flags & ZFS_ITER_RECURSE) == 0 && limit == 0) { 2221 flags |= (ZFS_ITER_DEPTH_LIMIT | ZFS_ITER_RECURSE); 2222 limit = 1; 2223 } 2224 2225 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 2226 != 0) 2227 usage(B_FALSE); 2228 2229 argc--; 2230 argv++; 2231 2232 /* 2233 * As part of zfs_expand_proplist(), we keep track of the maximum column 2234 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 2235 * need to know the maximum name length. However, the user likely did 2236 * not specify 'name' as one of the properties to fetch, so we need to 2237 * make sure we always include at least this property for 2238 * print_get_headers() to work properly. 2239 */ 2240 if (cb.cb_proplist != NULL) { 2241 fake_name.pl_prop = ZFS_PROP_NAME; 2242 fake_name.pl_width = strlen(gettext("NAME")); 2243 fake_name.pl_next = cb.cb_proplist; 2244 cb.cb_proplist = &fake_name; 2245 } 2246 2247 cb.cb_first = B_TRUE; 2248 2249 /* run for each object */ 2250 ret = zfs_for_each(argc, argv, flags, types, NULL, 2251 &cb.cb_proplist, limit, get_callback, &cb); 2252 2253 if (cb.cb_proplist == &fake_name) 2254 zprop_free_list(fake_name.pl_next); 2255 else 2256 zprop_free_list(cb.cb_proplist); 2257 2258 return (ret); 2259 } 2260 2261 /* 2262 * inherit [-rS] <property> <fs|vol> ... 2263 * 2264 * -r Recurse over all children 2265 * -S Revert to received value, if any 2266 * 2267 * For each dataset specified on the command line, inherit the given property 2268 * from its parent. Inheriting a property at the pool level will cause it to 2269 * use the default value. The '-r' flag will recurse over all children, and is 2270 * useful for setting a property on a hierarchy-wide basis, regardless of any 2271 * local modifications for each dataset. 2272 */ 2273 2274 typedef struct inherit_cbdata { 2275 const char *cb_propname; 2276 boolean_t cb_received; 2277 } inherit_cbdata_t; 2278 2279 static int 2280 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 2281 { 2282 inherit_cbdata_t *cb = data; 2283 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 2284 2285 /* 2286 * If we're doing it recursively, then ignore properties that 2287 * are not valid for this type of dataset. 2288 */ 2289 if (prop != ZPROP_INVAL && 2290 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp), B_FALSE)) 2291 return (0); 2292 2293 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 2294 } 2295 2296 static int 2297 inherit_cb(zfs_handle_t *zhp, void *data) 2298 { 2299 inherit_cbdata_t *cb = data; 2300 2301 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 2302 } 2303 2304 static int 2305 zfs_do_inherit(int argc, char **argv) 2306 { 2307 int c; 2308 zfs_prop_t prop; 2309 inherit_cbdata_t cb = { 0 }; 2310 char *propname; 2311 int ret = 0; 2312 int flags = 0; 2313 boolean_t received = B_FALSE; 2314 2315 /* check options */ 2316 while ((c = getopt(argc, argv, "rS")) != -1) { 2317 switch (c) { 2318 case 'r': 2319 flags |= ZFS_ITER_RECURSE; 2320 break; 2321 case 'S': 2322 received = B_TRUE; 2323 break; 2324 case '?': 2325 default: 2326 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2327 optopt); 2328 usage(B_FALSE); 2329 } 2330 } 2331 2332 argc -= optind; 2333 argv += optind; 2334 2335 /* check number of arguments */ 2336 if (argc < 1) { 2337 (void) fprintf(stderr, gettext("missing property argument\n")); 2338 usage(B_FALSE); 2339 } 2340 if (argc < 2) { 2341 (void) fprintf(stderr, gettext("missing dataset argument\n")); 2342 usage(B_FALSE); 2343 } 2344 2345 propname = argv[0]; 2346 argc--; 2347 argv++; 2348 2349 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 2350 if (zfs_prop_readonly(prop)) { 2351 (void) fprintf(stderr, gettext( 2352 "%s property is read-only\n"), 2353 propname); 2354 return (1); 2355 } 2356 if (!zfs_prop_inheritable(prop) && !received) { 2357 (void) fprintf(stderr, gettext("'%s' property cannot " 2358 "be inherited\n"), propname); 2359 if (prop == ZFS_PROP_QUOTA || 2360 prop == ZFS_PROP_RESERVATION || 2361 prop == ZFS_PROP_REFQUOTA || 2362 prop == ZFS_PROP_REFRESERVATION) { 2363 (void) fprintf(stderr, gettext("use 'zfs set " 2364 "%s=none' to clear\n"), propname); 2365 (void) fprintf(stderr, gettext("use 'zfs " 2366 "inherit -S %s' to revert to received " 2367 "value\n"), propname); 2368 } 2369 return (1); 2370 } 2371 if (received && (prop == ZFS_PROP_VOLSIZE || 2372 prop == ZFS_PROP_VERSION)) { 2373 (void) fprintf(stderr, gettext("'%s' property cannot " 2374 "be reverted to a received value\n"), propname); 2375 return (1); 2376 } 2377 } else if (!zfs_prop_user(propname)) { 2378 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 2379 propname); 2380 usage(B_FALSE); 2381 } 2382 2383 cb.cb_propname = propname; 2384 cb.cb_received = received; 2385 2386 if (flags & ZFS_ITER_RECURSE) { 2387 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2388 NULL, NULL, 0, inherit_recurse_cb, &cb); 2389 } else { 2390 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 2391 NULL, NULL, 0, inherit_cb, &cb); 2392 } 2393 2394 return (ret); 2395 } 2396 2397 typedef struct upgrade_cbdata { 2398 uint64_t cb_numupgraded; 2399 uint64_t cb_numsamegraded; 2400 uint64_t cb_numfailed; 2401 uint64_t cb_version; 2402 boolean_t cb_newer; 2403 boolean_t cb_foundone; 2404 char cb_lastfs[ZFS_MAX_DATASET_NAME_LEN]; 2405 } upgrade_cbdata_t; 2406 2407 static int 2408 same_pool(zfs_handle_t *zhp, const char *name) 2409 { 2410 int len1 = strcspn(name, "/@"); 2411 const char *zhname = zfs_get_name(zhp); 2412 int len2 = strcspn(zhname, "/@"); 2413 2414 if (len1 != len2) 2415 return (B_FALSE); 2416 return (strncmp(name, zhname, len1) == 0); 2417 } 2418 2419 static int 2420 upgrade_list_callback(zfs_handle_t *zhp, void *data) 2421 { 2422 upgrade_cbdata_t *cb = data; 2423 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2424 2425 /* list if it's old/new */ 2426 if ((!cb->cb_newer && version < ZPL_VERSION) || 2427 (cb->cb_newer && version > ZPL_VERSION)) { 2428 char *str; 2429 if (cb->cb_newer) { 2430 str = gettext("The following filesystems are " 2431 "formatted using a newer software version and\n" 2432 "cannot be accessed on the current system.\n\n"); 2433 } else { 2434 str = gettext("The following filesystems are " 2435 "out of date, and can be upgraded. After being\n" 2436 "upgraded, these filesystems (and any 'zfs send' " 2437 "streams generated from\n" 2438 "subsequent snapshots) will no longer be " 2439 "accessible by older software versions.\n\n"); 2440 } 2441 2442 if (!cb->cb_foundone) { 2443 (void) puts(str); 2444 (void) printf(gettext("VER FILESYSTEM\n")); 2445 (void) printf(gettext("--- ------------\n")); 2446 cb->cb_foundone = B_TRUE; 2447 } 2448 2449 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2450 } 2451 2452 return (0); 2453 } 2454 2455 static int 2456 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2457 { 2458 upgrade_cbdata_t *cb = data; 2459 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2460 int needed_spa_version; 2461 int spa_version; 2462 2463 if (zfs_spa_version(zhp, &spa_version) < 0) 2464 return (-1); 2465 2466 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2467 2468 if (needed_spa_version < 0) 2469 return (-1); 2470 2471 if (spa_version < needed_spa_version) { 2472 /* can't upgrade */ 2473 (void) printf(gettext("%s: can not be " 2474 "upgraded; the pool version needs to first " 2475 "be upgraded\nto version %d\n\n"), 2476 zfs_get_name(zhp), needed_spa_version); 2477 cb->cb_numfailed++; 2478 return (0); 2479 } 2480 2481 /* upgrade */ 2482 if (version < cb->cb_version) { 2483 char verstr[16]; 2484 (void) snprintf(verstr, sizeof (verstr), 2485 "%llu", (u_longlong_t)cb->cb_version); 2486 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2487 /* 2488 * If they did "zfs upgrade -a", then we could 2489 * be doing ioctls to different pools. We need 2490 * to log this history once to each pool, and bypass 2491 * the normal history logging that happens in main(). 2492 */ 2493 (void) zpool_log_history(g_zfs, history_str); 2494 log_history = B_FALSE; 2495 } 2496 if (zfs_prop_set(zhp, "version", verstr) == 0) 2497 cb->cb_numupgraded++; 2498 else 2499 cb->cb_numfailed++; 2500 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2501 } else if (version > cb->cb_version) { 2502 /* can't downgrade */ 2503 (void) printf(gettext("%s: can not be downgraded; " 2504 "it is already at version %u\n"), 2505 zfs_get_name(zhp), version); 2506 cb->cb_numfailed++; 2507 } else { 2508 cb->cb_numsamegraded++; 2509 } 2510 return (0); 2511 } 2512 2513 /* 2514 * zfs upgrade 2515 * zfs upgrade -v 2516 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2517 */ 2518 static int 2519 zfs_do_upgrade(int argc, char **argv) 2520 { 2521 boolean_t all = B_FALSE; 2522 boolean_t showversions = B_FALSE; 2523 int ret = 0; 2524 upgrade_cbdata_t cb = { 0 }; 2525 int c; 2526 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2527 2528 /* check options */ 2529 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2530 switch (c) { 2531 case 'r': 2532 flags |= ZFS_ITER_RECURSE; 2533 break; 2534 case 'v': 2535 showversions = B_TRUE; 2536 break; 2537 case 'V': 2538 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2539 optarg, &cb.cb_version) != 0) { 2540 (void) fprintf(stderr, 2541 gettext("invalid version %s\n"), optarg); 2542 usage(B_FALSE); 2543 } 2544 break; 2545 case 'a': 2546 all = B_TRUE; 2547 break; 2548 case '?': 2549 default: 2550 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2551 optopt); 2552 usage(B_FALSE); 2553 } 2554 } 2555 2556 argc -= optind; 2557 argv += optind; 2558 2559 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2560 usage(B_FALSE); 2561 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2562 cb.cb_version || argc)) 2563 usage(B_FALSE); 2564 if ((all || argc) && (showversions)) 2565 usage(B_FALSE); 2566 if (all && argc) 2567 usage(B_FALSE); 2568 2569 if (showversions) { 2570 /* Show info on available versions. */ 2571 (void) printf(gettext("The following filesystem versions are " 2572 "supported:\n\n")); 2573 (void) printf(gettext("VER DESCRIPTION\n")); 2574 (void) printf("--- -----------------------------------------" 2575 "---------------\n"); 2576 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2577 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2578 (void) printf(gettext(" 3 Case insensitive and filesystem " 2579 "user identifier (FUID)\n")); 2580 (void) printf(gettext(" 4 userquota, groupquota " 2581 "properties\n")); 2582 (void) printf(gettext(" 5 System attributes\n")); 2583 (void) printf(gettext("\nFor more information on a particular " 2584 "version, including supported releases,\n")); 2585 (void) printf("see the ZFS Administration Guide.\n\n"); 2586 ret = 0; 2587 } else if (argc || all) { 2588 /* Upgrade filesystems */ 2589 if (cb.cb_version == 0) 2590 cb.cb_version = ZPL_VERSION; 2591 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2592 NULL, NULL, 0, upgrade_set_callback, &cb); 2593 (void) printf(gettext("%llu filesystems upgraded\n"), 2594 (u_longlong_t)cb.cb_numupgraded); 2595 if (cb.cb_numsamegraded) { 2596 (void) printf(gettext("%llu filesystems already at " 2597 "this version\n"), 2598 (u_longlong_t)cb.cb_numsamegraded); 2599 } 2600 if (cb.cb_numfailed != 0) 2601 ret = 1; 2602 } else { 2603 /* List old-version filesystems */ 2604 boolean_t found; 2605 (void) printf(gettext("This system is currently running " 2606 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2607 2608 flags |= ZFS_ITER_RECURSE; 2609 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2610 NULL, NULL, 0, upgrade_list_callback, &cb); 2611 2612 found = cb.cb_foundone; 2613 cb.cb_foundone = B_FALSE; 2614 cb.cb_newer = B_TRUE; 2615 2616 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2617 NULL, NULL, 0, upgrade_list_callback, &cb); 2618 2619 if (!cb.cb_foundone && !found) { 2620 (void) printf(gettext("All filesystems are " 2621 "formatted with the current version.\n")); 2622 } 2623 } 2624 2625 return (ret); 2626 } 2627 2628 /* 2629 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2630 * [-S field [-S field]...] [-t type[,...]] 2631 * filesystem | snapshot | path 2632 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2633 * [-S field [-S field]...] [-t type[,...]] 2634 * filesystem | snapshot | path 2635 * zfs projectspace [-Hp] [-o field[,...]] [-s field [-s field]...] 2636 * [-S field [-S field]...] filesystem | snapshot | path 2637 * 2638 * -H Scripted mode; elide headers and separate columns by tabs. 2639 * -i Translate SID to POSIX ID. 2640 * -n Print numeric ID instead of user/group name. 2641 * -o Control which fields to display. 2642 * -p Use exact (parsable) numeric output. 2643 * -s Specify sort columns, descending order. 2644 * -S Specify sort columns, ascending order. 2645 * -t Control which object types to display. 2646 * 2647 * Displays space consumed by, and quotas on, each user in the specified 2648 * filesystem or snapshot. 2649 */ 2650 2651 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2652 enum us_field_types { 2653 USFIELD_TYPE, 2654 USFIELD_NAME, 2655 USFIELD_USED, 2656 USFIELD_QUOTA, 2657 USFIELD_OBJUSED, 2658 USFIELD_OBJQUOTA 2659 }; 2660 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA", 2661 "OBJUSED", "OBJQUOTA" }; 2662 static char *us_field_names[] = { "type", "name", "used", "quota", 2663 "objused", "objquota" }; 2664 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2665 2666 #define USTYPE_PSX_GRP (1 << 0) 2667 #define USTYPE_PSX_USR (1 << 1) 2668 #define USTYPE_SMB_GRP (1 << 2) 2669 #define USTYPE_SMB_USR (1 << 3) 2670 #define USTYPE_PROJ (1 << 4) 2671 #define USTYPE_ALL \ 2672 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR | \ 2673 USTYPE_PROJ) 2674 2675 static int us_type_bits[] = { 2676 USTYPE_PSX_GRP, 2677 USTYPE_PSX_USR, 2678 USTYPE_SMB_GRP, 2679 USTYPE_SMB_USR, 2680 USTYPE_ALL 2681 }; 2682 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2683 "smbuser", "all" }; 2684 2685 typedef struct us_node { 2686 nvlist_t *usn_nvl; 2687 uu_avl_node_t usn_avlnode; 2688 uu_list_node_t usn_listnode; 2689 } us_node_t; 2690 2691 typedef struct us_cbdata { 2692 nvlist_t **cb_nvlp; 2693 uu_avl_pool_t *cb_avl_pool; 2694 uu_avl_t *cb_avl; 2695 boolean_t cb_numname; 2696 boolean_t cb_nicenum; 2697 boolean_t cb_sid2posix; 2698 zfs_userquota_prop_t cb_prop; 2699 zfs_sort_column_t *cb_sortcol; 2700 size_t cb_width[USFIELD_LAST]; 2701 } us_cbdata_t; 2702 2703 static boolean_t us_populated = B_FALSE; 2704 2705 typedef struct { 2706 zfs_sort_column_t *si_sortcol; 2707 boolean_t si_numname; 2708 } us_sort_info_t; 2709 2710 static int 2711 us_field_index(char *field) 2712 { 2713 int i; 2714 2715 for (i = 0; i < USFIELD_LAST; i++) { 2716 if (strcmp(field, us_field_names[i]) == 0) 2717 return (i); 2718 } 2719 2720 return (-1); 2721 } 2722 2723 static int 2724 us_compare(const void *larg, const void *rarg, void *unused) 2725 { 2726 const us_node_t *l = larg; 2727 const us_node_t *r = rarg; 2728 us_sort_info_t *si = (us_sort_info_t *)unused; 2729 zfs_sort_column_t *sortcol = si->si_sortcol; 2730 boolean_t numname = si->si_numname; 2731 nvlist_t *lnvl = l->usn_nvl; 2732 nvlist_t *rnvl = r->usn_nvl; 2733 int rc = 0; 2734 boolean_t lvb, rvb; 2735 2736 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2737 char *lvstr = ""; 2738 char *rvstr = ""; 2739 uint32_t lv32 = 0; 2740 uint32_t rv32 = 0; 2741 uint64_t lv64 = 0; 2742 uint64_t rv64 = 0; 2743 zfs_prop_t prop = sortcol->sc_prop; 2744 const char *propname = NULL; 2745 boolean_t reverse = sortcol->sc_reverse; 2746 2747 switch (prop) { 2748 case ZFS_PROP_TYPE: 2749 propname = "type"; 2750 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2751 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2752 if (rv32 != lv32) 2753 rc = (rv32 < lv32) ? 1 : -1; 2754 break; 2755 case ZFS_PROP_NAME: 2756 propname = "name"; 2757 if (numname) { 2758 compare_nums: 2759 (void) nvlist_lookup_uint64(lnvl, propname, 2760 &lv64); 2761 (void) nvlist_lookup_uint64(rnvl, propname, 2762 &rv64); 2763 if (rv64 != lv64) 2764 rc = (rv64 < lv64) ? 1 : -1; 2765 } else { 2766 if ((nvlist_lookup_string(lnvl, propname, 2767 &lvstr) == ENOENT) || 2768 (nvlist_lookup_string(rnvl, propname, 2769 &rvstr) == ENOENT)) { 2770 goto compare_nums; 2771 } 2772 rc = strcmp(lvstr, rvstr); 2773 } 2774 break; 2775 case ZFS_PROP_USED: 2776 case ZFS_PROP_QUOTA: 2777 if (!us_populated) 2778 break; 2779 if (prop == ZFS_PROP_USED) 2780 propname = "used"; 2781 else 2782 propname = "quota"; 2783 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2784 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2785 if (rv64 != lv64) 2786 rc = (rv64 < lv64) ? 1 : -1; 2787 break; 2788 2789 default: 2790 break; 2791 } 2792 2793 if (rc != 0) { 2794 if (rc < 0) 2795 return (reverse ? 1 : -1); 2796 else 2797 return (reverse ? -1 : 1); 2798 } 2799 } 2800 2801 /* 2802 * If entries still seem to be the same, check if they are of the same 2803 * type (smbentity is added only if we are doing SID to POSIX ID 2804 * translation where we can have duplicate type/name combinations). 2805 */ 2806 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2807 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2808 lvb != rvb) 2809 return (lvb < rvb ? -1 : 1); 2810 2811 return (0); 2812 } 2813 2814 static boolean_t 2815 zfs_prop_is_user(unsigned p) 2816 { 2817 return (p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA || 2818 p == ZFS_PROP_USEROBJUSED || p == ZFS_PROP_USEROBJQUOTA); 2819 } 2820 2821 static boolean_t 2822 zfs_prop_is_group(unsigned p) 2823 { 2824 return (p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA || 2825 p == ZFS_PROP_GROUPOBJUSED || p == ZFS_PROP_GROUPOBJQUOTA); 2826 } 2827 2828 static boolean_t 2829 zfs_prop_is_project(unsigned p) 2830 { 2831 return (p == ZFS_PROP_PROJECTUSED || p == ZFS_PROP_PROJECTQUOTA || 2832 p == ZFS_PROP_PROJECTOBJUSED || p == ZFS_PROP_PROJECTOBJQUOTA); 2833 } 2834 2835 static inline const char * 2836 us_type2str(unsigned field_type) 2837 { 2838 switch (field_type) { 2839 case USTYPE_PSX_USR: 2840 return ("POSIX User"); 2841 case USTYPE_PSX_GRP: 2842 return ("POSIX Group"); 2843 case USTYPE_SMB_USR: 2844 return ("SMB User"); 2845 case USTYPE_SMB_GRP: 2846 return ("SMB Group"); 2847 case USTYPE_PROJ: 2848 return ("Project"); 2849 default: 2850 return ("Undefined"); 2851 } 2852 } 2853 2854 static int 2855 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2856 { 2857 us_cbdata_t *cb = (us_cbdata_t *)arg; 2858 zfs_userquota_prop_t prop = cb->cb_prop; 2859 char *name = NULL; 2860 char *propname; 2861 char sizebuf[32]; 2862 us_node_t *node; 2863 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2864 uu_avl_t *avl = cb->cb_avl; 2865 uu_avl_index_t idx; 2866 nvlist_t *props; 2867 us_node_t *n; 2868 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2869 unsigned type = 0; 2870 const char *typestr; 2871 size_t namelen; 2872 size_t typelen; 2873 size_t sizelen; 2874 int typeidx, nameidx, sizeidx; 2875 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2876 boolean_t smbentity = B_FALSE; 2877 2878 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2879 nomem(); 2880 node = safe_malloc(sizeof (us_node_t)); 2881 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2882 node->usn_nvl = props; 2883 2884 if (domain != NULL && domain[0] != '\0') { 2885 #ifdef HAVE_IDMAP 2886 /* SMB */ 2887 char sid[MAXNAMELEN + 32]; 2888 uid_t id; 2889 uint64_t classes; 2890 int err; 2891 directory_error_t e; 2892 2893 smbentity = B_TRUE; 2894 2895 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2896 2897 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2898 type = USTYPE_SMB_GRP; 2899 err = sid_to_id(sid, B_FALSE, &id); 2900 } else { 2901 type = USTYPE_SMB_USR; 2902 err = sid_to_id(sid, B_TRUE, &id); 2903 } 2904 2905 if (err == 0) { 2906 rid = id; 2907 if (!cb->cb_sid2posix) { 2908 e = directory_name_from_sid(NULL, sid, &name, 2909 &classes); 2910 if (e != NULL) 2911 directory_error_free(e); 2912 if (name == NULL) 2913 name = sid; 2914 } 2915 } 2916 #else 2917 nvlist_free(props); 2918 free(node); 2919 2920 return (-1); 2921 #endif /* HAVE_IDMAP */ 2922 } 2923 2924 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2925 /* POSIX or -i */ 2926 if (zfs_prop_is_group(prop)) { 2927 type = USTYPE_PSX_GRP; 2928 if (!cb->cb_numname) { 2929 struct group *g; 2930 2931 if ((g = getgrgid(rid)) != NULL) 2932 name = g->gr_name; 2933 } 2934 } else if (zfs_prop_is_user(prop)) { 2935 type = USTYPE_PSX_USR; 2936 if (!cb->cb_numname) { 2937 struct passwd *p; 2938 2939 if ((p = getpwuid(rid)) != NULL) 2940 name = p->pw_name; 2941 } 2942 } else { 2943 type = USTYPE_PROJ; 2944 } 2945 } 2946 2947 /* 2948 * Make sure that the type/name combination is unique when doing 2949 * SID to POSIX ID translation (hence changing the type from SMB to 2950 * POSIX). 2951 */ 2952 if (cb->cb_sid2posix && 2953 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2954 nomem(); 2955 2956 /* Calculate/update width of TYPE field */ 2957 typestr = us_type2str(type); 2958 typelen = strlen(gettext(typestr)); 2959 typeidx = us_field_index("type"); 2960 if (typelen > cb->cb_width[typeidx]) 2961 cb->cb_width[typeidx] = typelen; 2962 if (nvlist_add_uint32(props, "type", type) != 0) 2963 nomem(); 2964 2965 /* Calculate/update width of NAME field */ 2966 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2967 if (nvlist_add_uint64(props, "name", rid) != 0) 2968 nomem(); 2969 namelen = snprintf(NULL, 0, "%u", rid); 2970 } else { 2971 if (nvlist_add_string(props, "name", name) != 0) 2972 nomem(); 2973 namelen = strlen(name); 2974 } 2975 nameidx = us_field_index("name"); 2976 if (nameidx >= 0 && namelen > cb->cb_width[nameidx]) 2977 cb->cb_width[nameidx] = namelen; 2978 2979 /* 2980 * Check if this type/name combination is in the list and update it; 2981 * otherwise add new node to the list. 2982 */ 2983 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2984 uu_avl_insert(avl, node, idx); 2985 } else { 2986 nvlist_free(props); 2987 free(node); 2988 node = n; 2989 props = node->usn_nvl; 2990 } 2991 2992 /* Calculate/update width of USED/QUOTA fields */ 2993 if (cb->cb_nicenum) { 2994 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 2995 prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 2996 prop == ZFS_PROP_PROJECTUSED || 2997 prop == ZFS_PROP_PROJECTQUOTA) { 2998 zfs_nicebytes(space, sizebuf, sizeof (sizebuf)); 2999 } else { 3000 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 3001 } 3002 } else { 3003 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", 3004 (u_longlong_t)space); 3005 } 3006 sizelen = strlen(sizebuf); 3007 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED || 3008 prop == ZFS_PROP_PROJECTUSED) { 3009 propname = "used"; 3010 if (!nvlist_exists(props, "quota")) 3011 (void) nvlist_add_uint64(props, "quota", 0); 3012 } else if (prop == ZFS_PROP_USERQUOTA || prop == ZFS_PROP_GROUPQUOTA || 3013 prop == ZFS_PROP_PROJECTQUOTA) { 3014 propname = "quota"; 3015 if (!nvlist_exists(props, "used")) 3016 (void) nvlist_add_uint64(props, "used", 0); 3017 } else if (prop == ZFS_PROP_USEROBJUSED || 3018 prop == ZFS_PROP_GROUPOBJUSED || prop == ZFS_PROP_PROJECTOBJUSED) { 3019 propname = "objused"; 3020 if (!nvlist_exists(props, "objquota")) 3021 (void) nvlist_add_uint64(props, "objquota", 0); 3022 } else if (prop == ZFS_PROP_USEROBJQUOTA || 3023 prop == ZFS_PROP_GROUPOBJQUOTA || 3024 prop == ZFS_PROP_PROJECTOBJQUOTA) { 3025 propname = "objquota"; 3026 if (!nvlist_exists(props, "objused")) 3027 (void) nvlist_add_uint64(props, "objused", 0); 3028 } else { 3029 return (-1); 3030 } 3031 sizeidx = us_field_index(propname); 3032 if (sizeidx >= 0 && sizelen > cb->cb_width[sizeidx]) 3033 cb->cb_width[sizeidx] = sizelen; 3034 3035 if (nvlist_add_uint64(props, propname, space) != 0) 3036 nomem(); 3037 3038 return (0); 3039 } 3040 3041 static void 3042 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 3043 size_t *width, us_node_t *node) 3044 { 3045 nvlist_t *nvl = node->usn_nvl; 3046 char valstr[MAXNAMELEN]; 3047 boolean_t first = B_TRUE; 3048 int cfield = 0; 3049 int field; 3050 uint32_t ustype; 3051 3052 /* Check type */ 3053 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 3054 if (!(ustype & types)) 3055 return; 3056 3057 while ((field = fields[cfield]) != USFIELD_LAST) { 3058 nvpair_t *nvp = NULL; 3059 data_type_t type; 3060 uint32_t val32; 3061 uint64_t val64; 3062 char *strval = "-"; 3063 3064 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 3065 if (strcmp(nvpair_name(nvp), 3066 us_field_names[field]) == 0) 3067 break; 3068 } 3069 3070 type = nvp == NULL ? DATA_TYPE_UNKNOWN : nvpair_type(nvp); 3071 switch (type) { 3072 case DATA_TYPE_UINT32: 3073 (void) nvpair_value_uint32(nvp, &val32); 3074 break; 3075 case DATA_TYPE_UINT64: 3076 (void) nvpair_value_uint64(nvp, &val64); 3077 break; 3078 case DATA_TYPE_STRING: 3079 (void) nvpair_value_string(nvp, &strval); 3080 break; 3081 case DATA_TYPE_UNKNOWN: 3082 break; 3083 default: 3084 (void) fprintf(stderr, "invalid data type\n"); 3085 } 3086 3087 switch (field) { 3088 case USFIELD_TYPE: 3089 if (type == DATA_TYPE_UINT32) 3090 strval = (char *)us_type2str(val32); 3091 break; 3092 case USFIELD_NAME: 3093 if (type == DATA_TYPE_UINT64) { 3094 (void) sprintf(valstr, "%llu", 3095 (u_longlong_t)val64); 3096 strval = valstr; 3097 } 3098 break; 3099 case USFIELD_USED: 3100 case USFIELD_QUOTA: 3101 if (type == DATA_TYPE_UINT64) { 3102 if (parsable) { 3103 (void) sprintf(valstr, "%llu", 3104 (u_longlong_t)val64); 3105 strval = valstr; 3106 } else if (field == USFIELD_QUOTA && 3107 val64 == 0) { 3108 strval = "none"; 3109 } else { 3110 zfs_nicebytes(val64, valstr, 3111 sizeof (valstr)); 3112 strval = valstr; 3113 } 3114 } 3115 break; 3116 case USFIELD_OBJUSED: 3117 case USFIELD_OBJQUOTA: 3118 if (type == DATA_TYPE_UINT64) { 3119 if (parsable) { 3120 (void) sprintf(valstr, "%llu", 3121 (u_longlong_t)val64); 3122 strval = valstr; 3123 } else if (field == USFIELD_OBJQUOTA && 3124 val64 == 0) { 3125 strval = "none"; 3126 } else { 3127 zfs_nicenum(val64, valstr, 3128 sizeof (valstr)); 3129 strval = valstr; 3130 } 3131 } 3132 break; 3133 } 3134 3135 if (!first) { 3136 if (scripted) 3137 (void) printf("\t"); 3138 else 3139 (void) printf(" "); 3140 } 3141 if (scripted) 3142 (void) printf("%s", strval); 3143 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 3144 (void) printf("%-*s", (int)width[field], strval); 3145 else 3146 (void) printf("%*s", (int)width[field], strval); 3147 3148 first = B_FALSE; 3149 cfield++; 3150 } 3151 3152 (void) printf("\n"); 3153 } 3154 3155 static void 3156 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 3157 size_t *width, boolean_t rmnode, uu_avl_t *avl) 3158 { 3159 us_node_t *node; 3160 const char *col; 3161 int cfield = 0; 3162 int field; 3163 3164 if (!scripted) { 3165 boolean_t first = B_TRUE; 3166 3167 while ((field = fields[cfield]) != USFIELD_LAST) { 3168 col = gettext(us_field_hdr[field]); 3169 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 3170 (void) printf(first ? "%-*s" : " %-*s", 3171 (int)width[field], col); 3172 } else { 3173 (void) printf(first ? "%*s" : " %*s", 3174 (int)width[field], col); 3175 } 3176 first = B_FALSE; 3177 cfield++; 3178 } 3179 (void) printf("\n"); 3180 } 3181 3182 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 3183 print_us_node(scripted, parsable, fields, types, width, node); 3184 if (rmnode) 3185 nvlist_free(node->usn_nvl); 3186 } 3187 } 3188 3189 static int 3190 zfs_do_userspace(int argc, char **argv) 3191 { 3192 zfs_handle_t *zhp; 3193 zfs_userquota_prop_t p; 3194 uu_avl_pool_t *avl_pool; 3195 uu_avl_t *avl_tree; 3196 uu_avl_walk_t *walk; 3197 char *delim; 3198 char deffields[] = "type,name,used,quota,objused,objquota"; 3199 char *ofield = NULL; 3200 char *tfield = NULL; 3201 int cfield = 0; 3202 int fields[256]; 3203 int i; 3204 boolean_t scripted = B_FALSE; 3205 boolean_t prtnum = B_FALSE; 3206 boolean_t parsable = B_FALSE; 3207 boolean_t sid2posix = B_FALSE; 3208 int ret = 0; 3209 int c; 3210 zfs_sort_column_t *sortcol = NULL; 3211 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 3212 us_cbdata_t cb; 3213 us_node_t *node; 3214 us_node_t *rmnode; 3215 uu_list_pool_t *listpool; 3216 uu_list_t *list; 3217 uu_avl_index_t idx = 0; 3218 uu_list_index_t idx2 = 0; 3219 3220 if (argc < 2) 3221 usage(B_FALSE); 3222 3223 if (strcmp(argv[0], "groupspace") == 0) { 3224 /* Toggle default group types */ 3225 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 3226 } else if (strcmp(argv[0], "projectspace") == 0) { 3227 types = USTYPE_PROJ; 3228 prtnum = B_TRUE; 3229 } 3230 3231 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 3232 switch (c) { 3233 case 'n': 3234 if (types == USTYPE_PROJ) { 3235 (void) fprintf(stderr, 3236 gettext("invalid option 'n'\n")); 3237 usage(B_FALSE); 3238 } 3239 prtnum = B_TRUE; 3240 break; 3241 case 'H': 3242 scripted = B_TRUE; 3243 break; 3244 case 'p': 3245 parsable = B_TRUE; 3246 break; 3247 case 'o': 3248 ofield = optarg; 3249 break; 3250 case 's': 3251 case 'S': 3252 if (zfs_add_sort_column(&sortcol, optarg, 3253 c == 's' ? B_FALSE : B_TRUE) != 0) { 3254 (void) fprintf(stderr, 3255 gettext("invalid field '%s'\n"), optarg); 3256 usage(B_FALSE); 3257 } 3258 break; 3259 case 't': 3260 if (types == USTYPE_PROJ) { 3261 (void) fprintf(stderr, 3262 gettext("invalid option 't'\n")); 3263 usage(B_FALSE); 3264 } 3265 tfield = optarg; 3266 break; 3267 case 'i': 3268 if (types == USTYPE_PROJ) { 3269 (void) fprintf(stderr, 3270 gettext("invalid option 'i'\n")); 3271 usage(B_FALSE); 3272 } 3273 sid2posix = B_TRUE; 3274 break; 3275 case ':': 3276 (void) fprintf(stderr, gettext("missing argument for " 3277 "'%c' option\n"), optopt); 3278 usage(B_FALSE); 3279 break; 3280 case '?': 3281 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3282 optopt); 3283 usage(B_FALSE); 3284 } 3285 } 3286 3287 argc -= optind; 3288 argv += optind; 3289 3290 if (argc < 1) { 3291 (void) fprintf(stderr, gettext("missing dataset name\n")); 3292 usage(B_FALSE); 3293 } 3294 if (argc > 1) { 3295 (void) fprintf(stderr, gettext("too many arguments\n")); 3296 usage(B_FALSE); 3297 } 3298 3299 /* Use default output fields if not specified using -o */ 3300 if (ofield == NULL) 3301 ofield = deffields; 3302 do { 3303 if ((delim = strchr(ofield, ',')) != NULL) 3304 *delim = '\0'; 3305 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 3306 (void) fprintf(stderr, gettext("invalid type '%s' " 3307 "for -o option\n"), ofield); 3308 return (-1); 3309 } 3310 if (delim != NULL) 3311 ofield = delim + 1; 3312 } while (delim != NULL); 3313 fields[cfield] = USFIELD_LAST; 3314 3315 /* Override output types (-t option) */ 3316 if (tfield != NULL) { 3317 types = 0; 3318 3319 do { 3320 boolean_t found = B_FALSE; 3321 3322 if ((delim = strchr(tfield, ',')) != NULL) 3323 *delim = '\0'; 3324 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 3325 i++) { 3326 if (strcmp(tfield, us_type_names[i]) == 0) { 3327 found = B_TRUE; 3328 types |= us_type_bits[i]; 3329 break; 3330 } 3331 } 3332 if (!found) { 3333 (void) fprintf(stderr, gettext("invalid type " 3334 "'%s' for -t option\n"), tfield); 3335 return (-1); 3336 } 3337 if (delim != NULL) 3338 tfield = delim + 1; 3339 } while (delim != NULL); 3340 } 3341 3342 if ((zhp = zfs_path_to_zhandle(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | 3343 ZFS_TYPE_SNAPSHOT)) == NULL) 3344 return (1); 3345 if (zfs_get_underlying_type(zhp) != ZFS_TYPE_FILESYSTEM) { 3346 (void) fprintf(stderr, gettext("operation is only applicable " 3347 "to filesystems and their snapshots\n")); 3348 zfs_close(zhp); 3349 return (1); 3350 } 3351 3352 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 3353 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 3354 nomem(); 3355 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 3356 nomem(); 3357 3358 /* Always add default sorting columns */ 3359 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 3360 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 3361 3362 cb.cb_sortcol = sortcol; 3363 cb.cb_numname = prtnum; 3364 cb.cb_nicenum = !parsable; 3365 cb.cb_avl_pool = avl_pool; 3366 cb.cb_avl = avl_tree; 3367 cb.cb_sid2posix = sid2posix; 3368 3369 for (i = 0; i < USFIELD_LAST; i++) 3370 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 3371 3372 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 3373 if ((zfs_prop_is_user(p) && 3374 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 3375 (zfs_prop_is_group(p) && 3376 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP))) || 3377 (zfs_prop_is_project(p) && types != USTYPE_PROJ)) 3378 continue; 3379 3380 cb.cb_prop = p; 3381 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) { 3382 zfs_close(zhp); 3383 return (ret); 3384 } 3385 } 3386 zfs_close(zhp); 3387 3388 /* Sort the list */ 3389 if ((node = uu_avl_first(avl_tree)) == NULL) 3390 return (0); 3391 3392 us_populated = B_TRUE; 3393 3394 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 3395 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 3396 list = uu_list_create(listpool, NULL, UU_DEFAULT); 3397 uu_list_node_init(node, &node->usn_listnode, listpool); 3398 3399 while (node != NULL) { 3400 rmnode = node; 3401 node = uu_avl_next(avl_tree, node); 3402 uu_avl_remove(avl_tree, rmnode); 3403 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 3404 uu_list_insert(list, rmnode, idx2); 3405 } 3406 3407 for (node = uu_list_first(list); node != NULL; 3408 node = uu_list_next(list, node)) { 3409 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 3410 3411 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 3412 uu_avl_insert(avl_tree, node, idx); 3413 } 3414 3415 uu_list_destroy(list); 3416 uu_list_pool_destroy(listpool); 3417 3418 /* Print and free node nvlist memory */ 3419 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 3420 cb.cb_avl); 3421 3422 zfs_free_sort_columns(sortcol); 3423 3424 /* Clean up the AVL tree */ 3425 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 3426 nomem(); 3427 3428 while ((node = uu_avl_walk_next(walk)) != NULL) { 3429 uu_avl_remove(cb.cb_avl, node); 3430 free(node); 3431 } 3432 3433 uu_avl_walk_end(walk); 3434 uu_avl_destroy(avl_tree); 3435 uu_avl_pool_destroy(avl_pool); 3436 3437 return (ret); 3438 } 3439 3440 /* 3441 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] 3442 * [-t type[,...]] [filesystem|volume|snapshot] ... 3443 * 3444 * -H Scripted mode; elide headers and separate columns by tabs 3445 * -p Display values in parsable (literal) format. 3446 * -r Recurse over all children 3447 * -d Limit recursion by depth. 3448 * -o Control which fields to display. 3449 * -s Specify sort columns, descending order. 3450 * -S Specify sort columns, ascending order. 3451 * -t Control which object types to display. 3452 * 3453 * When given no arguments, list all filesystems in the system. 3454 * Otherwise, list the specified datasets, optionally recursing down them if 3455 * '-r' is specified. 3456 */ 3457 typedef struct list_cbdata { 3458 boolean_t cb_first; 3459 boolean_t cb_literal; 3460 boolean_t cb_scripted; 3461 zprop_list_t *cb_proplist; 3462 } list_cbdata_t; 3463 3464 /* 3465 * Given a list of columns to display, output appropriate headers for each one. 3466 */ 3467 static void 3468 print_header(list_cbdata_t *cb) 3469 { 3470 zprop_list_t *pl = cb->cb_proplist; 3471 char headerbuf[ZFS_MAXPROPLEN]; 3472 const char *header; 3473 int i; 3474 boolean_t first = B_TRUE; 3475 boolean_t right_justify; 3476 3477 for (; pl != NULL; pl = pl->pl_next) { 3478 if (!first) { 3479 (void) printf(" "); 3480 } else { 3481 first = B_FALSE; 3482 } 3483 3484 right_justify = B_FALSE; 3485 if (pl->pl_prop != ZPROP_INVAL) { 3486 header = zfs_prop_column_name(pl->pl_prop); 3487 right_justify = zfs_prop_align_right(pl->pl_prop); 3488 } else { 3489 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 3490 headerbuf[i] = toupper(pl->pl_user_prop[i]); 3491 headerbuf[i] = '\0'; 3492 header = headerbuf; 3493 } 3494 3495 if (pl->pl_next == NULL && !right_justify) 3496 (void) printf("%s", header); 3497 else if (right_justify) 3498 (void) printf("%*s", (int)pl->pl_width, header); 3499 else 3500 (void) printf("%-*s", (int)pl->pl_width, header); 3501 } 3502 3503 (void) printf("\n"); 3504 } 3505 3506 /* 3507 * Given a dataset and a list of fields, print out all the properties according 3508 * to the described layout. 3509 */ 3510 static void 3511 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 3512 { 3513 zprop_list_t *pl = cb->cb_proplist; 3514 boolean_t first = B_TRUE; 3515 char property[ZFS_MAXPROPLEN]; 3516 nvlist_t *userprops = zfs_get_user_props(zhp); 3517 nvlist_t *propval; 3518 char *propstr; 3519 boolean_t right_justify; 3520 3521 for (; pl != NULL; pl = pl->pl_next) { 3522 if (!first) { 3523 if (cb->cb_scripted) 3524 (void) printf("\t"); 3525 else 3526 (void) printf(" "); 3527 } else { 3528 first = B_FALSE; 3529 } 3530 3531 if (pl->pl_prop == ZFS_PROP_NAME) { 3532 (void) strlcpy(property, zfs_get_name(zhp), 3533 sizeof (property)); 3534 propstr = property; 3535 right_justify = zfs_prop_align_right(pl->pl_prop); 3536 } else if (pl->pl_prop != ZPROP_INVAL) { 3537 if (zfs_prop_get(zhp, pl->pl_prop, property, 3538 sizeof (property), NULL, NULL, 0, 3539 cb->cb_literal) != 0) 3540 propstr = "-"; 3541 else 3542 propstr = property; 3543 right_justify = zfs_prop_align_right(pl->pl_prop); 3544 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 3545 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 3546 property, sizeof (property), cb->cb_literal) != 0) 3547 propstr = "-"; 3548 else 3549 propstr = property; 3550 right_justify = B_TRUE; 3551 } else if (zfs_prop_written(pl->pl_user_prop)) { 3552 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3553 property, sizeof (property), cb->cb_literal) != 0) 3554 propstr = "-"; 3555 else 3556 propstr = property; 3557 right_justify = B_TRUE; 3558 } else { 3559 if (nvlist_lookup_nvlist(userprops, 3560 pl->pl_user_prop, &propval) != 0) 3561 propstr = "-"; 3562 else 3563 verify(nvlist_lookup_string(propval, 3564 ZPROP_VALUE, &propstr) == 0); 3565 right_justify = B_FALSE; 3566 } 3567 3568 /* 3569 * If this is being called in scripted mode, or if this is the 3570 * last column and it is left-justified, don't include a width 3571 * format specifier. 3572 */ 3573 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3574 (void) printf("%s", propstr); 3575 else if (right_justify) 3576 (void) printf("%*s", (int)pl->pl_width, propstr); 3577 else 3578 (void) printf("%-*s", (int)pl->pl_width, propstr); 3579 } 3580 3581 (void) printf("\n"); 3582 } 3583 3584 /* 3585 * Generic callback function to list a dataset or snapshot. 3586 */ 3587 static int 3588 list_callback(zfs_handle_t *zhp, void *data) 3589 { 3590 list_cbdata_t *cbp = data; 3591 3592 if (cbp->cb_first) { 3593 if (!cbp->cb_scripted) 3594 print_header(cbp); 3595 cbp->cb_first = B_FALSE; 3596 } 3597 3598 print_dataset(zhp, cbp); 3599 3600 return (0); 3601 } 3602 3603 static int 3604 zfs_do_list(int argc, char **argv) 3605 { 3606 int c; 3607 static char default_fields[] = 3608 "name,used,available,referenced,mountpoint"; 3609 int types = ZFS_TYPE_DATASET; 3610 boolean_t types_specified = B_FALSE; 3611 char *fields = NULL; 3612 list_cbdata_t cb = { 0 }; 3613 char *value; 3614 int limit = 0; 3615 int ret = 0; 3616 zfs_sort_column_t *sortcol = NULL; 3617 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3618 3619 /* check options */ 3620 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3621 switch (c) { 3622 case 'o': 3623 fields = optarg; 3624 break; 3625 case 'p': 3626 cb.cb_literal = B_TRUE; 3627 flags |= ZFS_ITER_LITERAL_PROPS; 3628 break; 3629 case 'd': 3630 limit = parse_depth(optarg, &flags); 3631 break; 3632 case 'r': 3633 flags |= ZFS_ITER_RECURSE; 3634 break; 3635 case 'H': 3636 cb.cb_scripted = B_TRUE; 3637 break; 3638 case 's': 3639 if (zfs_add_sort_column(&sortcol, optarg, 3640 B_FALSE) != 0) { 3641 (void) fprintf(stderr, 3642 gettext("invalid property '%s'\n"), optarg); 3643 usage(B_FALSE); 3644 } 3645 break; 3646 case 'S': 3647 if (zfs_add_sort_column(&sortcol, optarg, 3648 B_TRUE) != 0) { 3649 (void) fprintf(stderr, 3650 gettext("invalid property '%s'\n"), optarg); 3651 usage(B_FALSE); 3652 } 3653 break; 3654 case 't': 3655 types = 0; 3656 types_specified = B_TRUE; 3657 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3658 while (*optarg != '\0') { 3659 static char *type_subopts[] = { "filesystem", 3660 "volume", "snapshot", "snap", "bookmark", 3661 "all", NULL }; 3662 3663 switch (getsubopt(&optarg, type_subopts, 3664 &value)) { 3665 case 0: 3666 types |= ZFS_TYPE_FILESYSTEM; 3667 break; 3668 case 1: 3669 types |= ZFS_TYPE_VOLUME; 3670 break; 3671 case 2: 3672 case 3: 3673 types |= ZFS_TYPE_SNAPSHOT; 3674 break; 3675 case 4: 3676 types |= ZFS_TYPE_BOOKMARK; 3677 break; 3678 case 5: 3679 types = ZFS_TYPE_DATASET | 3680 ZFS_TYPE_BOOKMARK; 3681 break; 3682 default: 3683 (void) fprintf(stderr, 3684 gettext("invalid type '%s'\n"), 3685 value); 3686 usage(B_FALSE); 3687 } 3688 } 3689 break; 3690 case ':': 3691 (void) fprintf(stderr, gettext("missing argument for " 3692 "'%c' option\n"), optopt); 3693 usage(B_FALSE); 3694 break; 3695 case '?': 3696 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3697 optopt); 3698 usage(B_FALSE); 3699 } 3700 } 3701 3702 argc -= optind; 3703 argv += optind; 3704 3705 if (fields == NULL) 3706 fields = default_fields; 3707 3708 /* 3709 * If we are only going to list snapshot names and sort by name, 3710 * then we can use faster version. 3711 */ 3712 if (strcmp(fields, "name") == 0 && zfs_sort_only_by_name(sortcol)) 3713 flags |= ZFS_ITER_SIMPLE; 3714 3715 /* 3716 * If "-o space" and no types were specified, don't display snapshots. 3717 */ 3718 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3719 types &= ~ZFS_TYPE_SNAPSHOT; 3720 3721 /* 3722 * Handle users who want to list all snapshots or bookmarks 3723 * of the current dataset (ex. 'zfs list -t snapshot <dataset>'). 3724 */ 3725 if ((types == ZFS_TYPE_SNAPSHOT || types == ZFS_TYPE_BOOKMARK) && 3726 argc > 0 && (flags & ZFS_ITER_RECURSE) == 0 && limit == 0) { 3727 flags |= (ZFS_ITER_DEPTH_LIMIT | ZFS_ITER_RECURSE); 3728 limit = 1; 3729 } 3730 3731 /* 3732 * If the user specifies '-o all', the zprop_get_list() doesn't 3733 * normally include the name of the dataset. For 'zfs list', we always 3734 * want this property to be first. 3735 */ 3736 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3737 != 0) 3738 usage(B_FALSE); 3739 3740 cb.cb_first = B_TRUE; 3741 3742 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3743 limit, list_callback, &cb); 3744 3745 zprop_free_list(cb.cb_proplist); 3746 zfs_free_sort_columns(sortcol); 3747 3748 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3749 (void) fprintf(stderr, gettext("no datasets available\n")); 3750 3751 return (ret); 3752 } 3753 3754 /* 3755 * zfs rename [-fu] <fs | snap | vol> <fs | snap | vol> 3756 * zfs rename [-f] -p <fs | vol> <fs | vol> 3757 * zfs rename [-u] -r <snap> <snap> 3758 * 3759 * Renames the given dataset to another of the same type. 3760 * 3761 * The '-p' flag creates all the non-existing ancestors of the target first. 3762 * The '-u' flag prevents file systems from being remounted during rename. 3763 */ 3764 /* ARGSUSED */ 3765 static int 3766 zfs_do_rename(int argc, char **argv) 3767 { 3768 zfs_handle_t *zhp; 3769 renameflags_t flags = { 0 }; 3770 int c; 3771 int ret = 0; 3772 int types; 3773 boolean_t parents = B_FALSE; 3774 3775 /* check options */ 3776 while ((c = getopt(argc, argv, "pruf")) != -1) { 3777 switch (c) { 3778 case 'p': 3779 parents = B_TRUE; 3780 break; 3781 case 'r': 3782 flags.recursive = B_TRUE; 3783 break; 3784 case 'u': 3785 flags.nounmount = B_TRUE; 3786 break; 3787 case 'f': 3788 flags.forceunmount = B_TRUE; 3789 break; 3790 case '?': 3791 default: 3792 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3793 optopt); 3794 usage(B_FALSE); 3795 } 3796 } 3797 3798 argc -= optind; 3799 argv += optind; 3800 3801 /* check number of arguments */ 3802 if (argc < 1) { 3803 (void) fprintf(stderr, gettext("missing source dataset " 3804 "argument\n")); 3805 usage(B_FALSE); 3806 } 3807 if (argc < 2) { 3808 (void) fprintf(stderr, gettext("missing target dataset " 3809 "argument\n")); 3810 usage(B_FALSE); 3811 } 3812 if (argc > 2) { 3813 (void) fprintf(stderr, gettext("too many arguments\n")); 3814 usage(B_FALSE); 3815 } 3816 3817 if (flags.recursive && parents) { 3818 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3819 "exclusive\n")); 3820 usage(B_FALSE); 3821 } 3822 3823 if (flags.nounmount && parents) { 3824 (void) fprintf(stderr, gettext("-u and -p options are mutually " 3825 "exclusive\n")); 3826 usage(B_FALSE); 3827 } 3828 3829 if (flags.recursive && strchr(argv[0], '@') == 0) { 3830 (void) fprintf(stderr, gettext("source dataset for recursive " 3831 "rename must be a snapshot\n")); 3832 usage(B_FALSE); 3833 } 3834 3835 if (flags.nounmount) 3836 types = ZFS_TYPE_FILESYSTEM; 3837 else if (parents) 3838 types = ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 3839 else 3840 types = ZFS_TYPE_DATASET; 3841 3842 if ((zhp = zfs_open(g_zfs, argv[0], types)) == NULL) 3843 return (1); 3844 3845 /* If we were asked and the name looks good, try to create ancestors. */ 3846 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3847 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3848 zfs_close(zhp); 3849 return (1); 3850 } 3851 3852 ret = (zfs_rename(zhp, argv[1], flags) != 0); 3853 3854 zfs_close(zhp); 3855 return (ret); 3856 } 3857 3858 /* 3859 * zfs promote <fs> 3860 * 3861 * Promotes the given clone fs to be the parent 3862 */ 3863 /* ARGSUSED */ 3864 static int 3865 zfs_do_promote(int argc, char **argv) 3866 { 3867 zfs_handle_t *zhp; 3868 int ret = 0; 3869 3870 /* check options */ 3871 if (argc > 1 && argv[1][0] == '-') { 3872 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3873 argv[1][1]); 3874 usage(B_FALSE); 3875 } 3876 3877 /* check number of arguments */ 3878 if (argc < 2) { 3879 (void) fprintf(stderr, gettext("missing clone filesystem" 3880 " argument\n")); 3881 usage(B_FALSE); 3882 } 3883 if (argc > 2) { 3884 (void) fprintf(stderr, gettext("too many arguments\n")); 3885 usage(B_FALSE); 3886 } 3887 3888 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3889 if (zhp == NULL) 3890 return (1); 3891 3892 ret = (zfs_promote(zhp) != 0); 3893 3894 3895 zfs_close(zhp); 3896 return (ret); 3897 } 3898 3899 static int 3900 zfs_do_redact(int argc, char **argv) 3901 { 3902 char *snap = NULL; 3903 char *bookname = NULL; 3904 char **rsnaps = NULL; 3905 int numrsnaps = 0; 3906 argv++; 3907 argc--; 3908 if (argc < 3) { 3909 (void) fprintf(stderr, gettext("too few arguments\n")); 3910 usage(B_FALSE); 3911 } 3912 3913 snap = argv[0]; 3914 bookname = argv[1]; 3915 rsnaps = argv + 2; 3916 numrsnaps = argc - 2; 3917 3918 nvlist_t *rsnapnv = fnvlist_alloc(); 3919 3920 for (int i = 0; i < numrsnaps; i++) { 3921 fnvlist_add_boolean(rsnapnv, rsnaps[i]); 3922 } 3923 3924 int err = lzc_redact(snap, bookname, rsnapnv); 3925 fnvlist_free(rsnapnv); 3926 3927 switch (err) { 3928 case 0: 3929 break; 3930 case ENOENT: 3931 (void) fprintf(stderr, 3932 gettext("provided snapshot %s does not exist\n"), snap); 3933 break; 3934 case EEXIST: 3935 (void) fprintf(stderr, gettext("specified redaction bookmark " 3936 "(%s) provided already exists\n"), bookname); 3937 break; 3938 case ENAMETOOLONG: 3939 (void) fprintf(stderr, gettext("provided bookmark name cannot " 3940 "be used, final name would be too long\n")); 3941 break; 3942 case E2BIG: 3943 (void) fprintf(stderr, gettext("too many redaction snapshots " 3944 "specified\n")); 3945 break; 3946 case EINVAL: 3947 if (strchr(bookname, '#') != NULL) 3948 (void) fprintf(stderr, gettext( 3949 "redaction bookmark name must not contain '#'\n")); 3950 else 3951 (void) fprintf(stderr, gettext( 3952 "redaction snapshot must be descendent of " 3953 "snapshot being redacted\n")); 3954 break; 3955 case EALREADY: 3956 (void) fprintf(stderr, gettext("attempted to redact redacted " 3957 "dataset or with respect to redacted dataset\n")); 3958 break; 3959 case ENOTSUP: 3960 (void) fprintf(stderr, gettext("redaction bookmarks feature " 3961 "not enabled\n")); 3962 break; 3963 case EXDEV: 3964 (void) fprintf(stderr, gettext("potentially invalid redaction " 3965 "snapshot; full dataset names required\n")); 3966 break; 3967 default: 3968 (void) fprintf(stderr, gettext("internal error: %s\n"), 3969 strerror(errno)); 3970 } 3971 3972 return (err); 3973 } 3974 3975 /* 3976 * zfs rollback [-rRf] <snapshot> 3977 * 3978 * -r Delete any intervening snapshots before doing rollback 3979 * -R Delete any snapshots and their clones 3980 * -f ignored for backwards compatibility 3981 * 3982 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3983 * since then and making it the active dataset. If more recent snapshots exist, 3984 * the command will complain unless the '-r' flag is given. 3985 */ 3986 typedef struct rollback_cbdata { 3987 uint64_t cb_create; 3988 uint8_t cb_younger_ds_printed; 3989 boolean_t cb_first; 3990 int cb_doclones; 3991 char *cb_target; 3992 int cb_error; 3993 boolean_t cb_recurse; 3994 } rollback_cbdata_t; 3995 3996 static int 3997 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3998 { 3999 rollback_cbdata_t *cbp = data; 4000 4001 if (cbp->cb_first && cbp->cb_recurse) { 4002 (void) fprintf(stderr, gettext("cannot rollback to " 4003 "'%s': clones of previous snapshots exist\n"), 4004 cbp->cb_target); 4005 (void) fprintf(stderr, gettext("use '-R' to " 4006 "force deletion of the following clones and " 4007 "dependents:\n")); 4008 cbp->cb_first = 0; 4009 cbp->cb_error = 1; 4010 } 4011 4012 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 4013 4014 zfs_close(zhp); 4015 return (0); 4016 } 4017 4018 4019 /* 4020 * Report some snapshots/bookmarks more recent than the one specified. 4021 * Used when '-r' is not specified. We reuse this same callback for the 4022 * snapshot dependents - if 'cb_dependent' is set, then this is a 4023 * dependent and we should report it without checking the transaction group. 4024 */ 4025 static int 4026 rollback_check(zfs_handle_t *zhp, void *data) 4027 { 4028 rollback_cbdata_t *cbp = data; 4029 /* 4030 * Max number of younger snapshots and/or bookmarks to display before 4031 * we stop the iteration. 4032 */ 4033 const uint8_t max_younger = 32; 4034 4035 if (cbp->cb_doclones) { 4036 zfs_close(zhp); 4037 return (0); 4038 } 4039 4040 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 4041 if (cbp->cb_first && !cbp->cb_recurse) { 4042 (void) fprintf(stderr, gettext("cannot " 4043 "rollback to '%s': more recent snapshots " 4044 "or bookmarks exist\n"), 4045 cbp->cb_target); 4046 (void) fprintf(stderr, gettext("use '-r' to " 4047 "force deletion of the following " 4048 "snapshots and bookmarks:\n")); 4049 cbp->cb_first = 0; 4050 cbp->cb_error = 1; 4051 } 4052 4053 if (cbp->cb_recurse) { 4054 if (zfs_iter_dependents(zhp, B_TRUE, 4055 rollback_check_dependent, cbp) != 0) { 4056 zfs_close(zhp); 4057 return (-1); 4058 } 4059 } else { 4060 (void) fprintf(stderr, "%s\n", 4061 zfs_get_name(zhp)); 4062 cbp->cb_younger_ds_printed++; 4063 } 4064 } 4065 zfs_close(zhp); 4066 4067 if (cbp->cb_younger_ds_printed == max_younger) { 4068 /* 4069 * This non-recursive rollback is going to fail due to the 4070 * presence of snapshots and/or bookmarks that are younger than 4071 * the rollback target. 4072 * We printed some of the offending objects, now we stop 4073 * zfs_iter_snapshot/bookmark iteration so we can fail fast and 4074 * avoid iterating over the rest of the younger objects 4075 */ 4076 (void) fprintf(stderr, gettext("Output limited to %d " 4077 "snapshots/bookmarks\n"), max_younger); 4078 return (-1); 4079 } 4080 return (0); 4081 } 4082 4083 static int 4084 zfs_do_rollback(int argc, char **argv) 4085 { 4086 int ret = 0; 4087 int c; 4088 boolean_t force = B_FALSE; 4089 rollback_cbdata_t cb = { 0 }; 4090 zfs_handle_t *zhp, *snap; 4091 char parentname[ZFS_MAX_DATASET_NAME_LEN]; 4092 char *delim; 4093 uint64_t min_txg = 0; 4094 4095 /* check options */ 4096 while ((c = getopt(argc, argv, "rRf")) != -1) { 4097 switch (c) { 4098 case 'r': 4099 cb.cb_recurse = 1; 4100 break; 4101 case 'R': 4102 cb.cb_recurse = 1; 4103 cb.cb_doclones = 1; 4104 break; 4105 case 'f': 4106 force = B_TRUE; 4107 break; 4108 case '?': 4109 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4110 optopt); 4111 usage(B_FALSE); 4112 } 4113 } 4114 4115 argc -= optind; 4116 argv += optind; 4117 4118 /* check number of arguments */ 4119 if (argc < 1) { 4120 (void) fprintf(stderr, gettext("missing dataset argument\n")); 4121 usage(B_FALSE); 4122 } 4123 if (argc > 1) { 4124 (void) fprintf(stderr, gettext("too many arguments\n")); 4125 usage(B_FALSE); 4126 } 4127 4128 /* open the snapshot */ 4129 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 4130 return (1); 4131 4132 /* open the parent dataset */ 4133 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 4134 verify((delim = strrchr(parentname, '@')) != NULL); 4135 *delim = '\0'; 4136 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 4137 zfs_close(snap); 4138 return (1); 4139 } 4140 4141 /* 4142 * Check for more recent snapshots and/or clones based on the presence 4143 * of '-r' and '-R'. 4144 */ 4145 cb.cb_target = argv[0]; 4146 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 4147 cb.cb_first = B_TRUE; 4148 cb.cb_error = 0; 4149 4150 if (cb.cb_create > 0) 4151 min_txg = cb.cb_create; 4152 4153 if ((ret = zfs_iter_snapshots(zhp, B_FALSE, rollback_check, &cb, 4154 min_txg, 0)) != 0) 4155 goto out; 4156 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 4157 goto out; 4158 4159 if ((ret = cb.cb_error) != 0) 4160 goto out; 4161 4162 /* 4163 * Rollback parent to the given snapshot. 4164 */ 4165 ret = zfs_rollback(zhp, snap, force); 4166 4167 out: 4168 zfs_close(snap); 4169 zfs_close(zhp); 4170 4171 if (ret == 0) 4172 return (0); 4173 else 4174 return (1); 4175 } 4176 4177 /* 4178 * zfs set property=value ... { fs | snap | vol } ... 4179 * 4180 * Sets the given properties for all datasets specified on the command line. 4181 */ 4182 4183 static int 4184 set_callback(zfs_handle_t *zhp, void *data) 4185 { 4186 nvlist_t *props = data; 4187 4188 if (zfs_prop_set_list(zhp, props) != 0) { 4189 switch (libzfs_errno(g_zfs)) { 4190 case EZFS_MOUNTFAILED: 4191 (void) fprintf(stderr, gettext("property may be set " 4192 "but unable to remount filesystem\n")); 4193 break; 4194 case EZFS_SHARENFSFAILED: 4195 (void) fprintf(stderr, gettext("property may be set " 4196 "but unable to reshare filesystem\n")); 4197 break; 4198 } 4199 return (1); 4200 } 4201 return (0); 4202 } 4203 4204 static int 4205 zfs_do_set(int argc, char **argv) 4206 { 4207 nvlist_t *props = NULL; 4208 int ds_start = -1; /* argv idx of first dataset arg */ 4209 int ret = 0; 4210 int i; 4211 4212 /* check for options */ 4213 if (argc > 1 && argv[1][0] == '-') { 4214 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4215 argv[1][1]); 4216 usage(B_FALSE); 4217 } 4218 4219 /* check number of arguments */ 4220 if (argc < 2) { 4221 (void) fprintf(stderr, gettext("missing arguments\n")); 4222 usage(B_FALSE); 4223 } 4224 if (argc < 3) { 4225 if (strchr(argv[1], '=') == NULL) { 4226 (void) fprintf(stderr, gettext("missing property=value " 4227 "argument(s)\n")); 4228 } else { 4229 (void) fprintf(stderr, gettext("missing dataset " 4230 "name(s)\n")); 4231 } 4232 usage(B_FALSE); 4233 } 4234 4235 /* validate argument order: prop=val args followed by dataset args */ 4236 for (i = 1; i < argc; i++) { 4237 if (strchr(argv[i], '=') != NULL) { 4238 if (ds_start > 0) { 4239 /* out-of-order prop=val argument */ 4240 (void) fprintf(stderr, gettext("invalid " 4241 "argument order\n")); 4242 usage(B_FALSE); 4243 } 4244 } else if (ds_start < 0) { 4245 ds_start = i; 4246 } 4247 } 4248 if (ds_start < 0) { 4249 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 4250 usage(B_FALSE); 4251 } 4252 4253 /* Populate a list of property settings */ 4254 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4255 nomem(); 4256 for (i = 1; i < ds_start; i++) { 4257 if (!parseprop(props, argv[i])) { 4258 ret = -1; 4259 goto error; 4260 } 4261 } 4262 4263 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 4264 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 4265 4266 error: 4267 nvlist_free(props); 4268 return (ret); 4269 } 4270 4271 typedef struct snap_cbdata { 4272 nvlist_t *sd_nvl; 4273 boolean_t sd_recursive; 4274 const char *sd_snapname; 4275 } snap_cbdata_t; 4276 4277 static int 4278 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 4279 { 4280 snap_cbdata_t *sd = arg; 4281 char *name; 4282 int rv = 0; 4283 int error; 4284 4285 if (sd->sd_recursive && 4286 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 4287 zfs_close(zhp); 4288 return (0); 4289 } 4290 4291 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 4292 if (error == -1) 4293 nomem(); 4294 fnvlist_add_boolean(sd->sd_nvl, name); 4295 free(name); 4296 4297 if (sd->sd_recursive) 4298 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 4299 zfs_close(zhp); 4300 return (rv); 4301 } 4302 4303 /* 4304 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 4305 * 4306 * Creates a snapshot with the given name. While functionally equivalent to 4307 * 'zfs create', it is a separate command to differentiate intent. 4308 */ 4309 static int 4310 zfs_do_snapshot(int argc, char **argv) 4311 { 4312 int ret = 0; 4313 int c; 4314 nvlist_t *props; 4315 snap_cbdata_t sd = { 0 }; 4316 boolean_t multiple_snaps = B_FALSE; 4317 4318 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4319 nomem(); 4320 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 4321 nomem(); 4322 4323 /* check options */ 4324 while ((c = getopt(argc, argv, "ro:")) != -1) { 4325 switch (c) { 4326 case 'o': 4327 if (!parseprop(props, optarg)) { 4328 nvlist_free(sd.sd_nvl); 4329 nvlist_free(props); 4330 return (1); 4331 } 4332 break; 4333 case 'r': 4334 sd.sd_recursive = B_TRUE; 4335 multiple_snaps = B_TRUE; 4336 break; 4337 case '?': 4338 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4339 optopt); 4340 goto usage; 4341 } 4342 } 4343 4344 argc -= optind; 4345 argv += optind; 4346 4347 /* check number of arguments */ 4348 if (argc < 1) { 4349 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4350 goto usage; 4351 } 4352 4353 if (argc > 1) 4354 multiple_snaps = B_TRUE; 4355 for (; argc > 0; argc--, argv++) { 4356 char *atp; 4357 zfs_handle_t *zhp; 4358 4359 atp = strchr(argv[0], '@'); 4360 if (atp == NULL) 4361 goto usage; 4362 *atp = '\0'; 4363 sd.sd_snapname = atp + 1; 4364 zhp = zfs_open(g_zfs, argv[0], 4365 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4366 if (zhp == NULL) 4367 goto usage; 4368 if (zfs_snapshot_cb(zhp, &sd) != 0) 4369 goto usage; 4370 } 4371 4372 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 4373 nvlist_free(sd.sd_nvl); 4374 nvlist_free(props); 4375 if (ret != 0 && multiple_snaps) 4376 (void) fprintf(stderr, gettext("no snapshots were created\n")); 4377 return (ret != 0); 4378 4379 usage: 4380 nvlist_free(sd.sd_nvl); 4381 nvlist_free(props); 4382 usage(B_FALSE); 4383 return (-1); 4384 } 4385 4386 4387 /* 4388 * Send a backup stream to stdout. 4389 */ 4390 static int 4391 zfs_do_send(int argc, char **argv) 4392 { 4393 char *fromname = NULL; 4394 char *toname = NULL; 4395 char *resume_token = NULL; 4396 char *cp; 4397 zfs_handle_t *zhp; 4398 sendflags_t flags = { 0 }; 4399 int c, err; 4400 nvlist_t *dbgnv = NULL; 4401 char *redactbook = NULL; 4402 4403 struct option long_options[] = { 4404 {"replicate", no_argument, NULL, 'R'}, 4405 {"skip-missing", no_argument, NULL, 's'}, 4406 {"redact", required_argument, NULL, 'd'}, 4407 {"props", no_argument, NULL, 'p'}, 4408 {"parsable", no_argument, NULL, 'P'}, 4409 {"dedup", no_argument, NULL, 'D'}, 4410 {"verbose", no_argument, NULL, 'v'}, 4411 {"dryrun", no_argument, NULL, 'n'}, 4412 {"large-block", no_argument, NULL, 'L'}, 4413 {"embed", no_argument, NULL, 'e'}, 4414 {"resume", required_argument, NULL, 't'}, 4415 {"compressed", no_argument, NULL, 'c'}, 4416 {"raw", no_argument, NULL, 'w'}, 4417 {"backup", no_argument, NULL, 'b'}, 4418 {"holds", no_argument, NULL, 'h'}, 4419 {"saved", no_argument, NULL, 'S'}, 4420 {0, 0, 0, 0} 4421 }; 4422 4423 /* check options */ 4424 while ((c = getopt_long(argc, argv, ":i:I:RsDpvnPLeht:cwbd:S", 4425 long_options, NULL)) != -1) { 4426 switch (c) { 4427 case 'i': 4428 if (fromname) 4429 usage(B_FALSE); 4430 fromname = optarg; 4431 break; 4432 case 'I': 4433 if (fromname) 4434 usage(B_FALSE); 4435 fromname = optarg; 4436 flags.doall = B_TRUE; 4437 break; 4438 case 'R': 4439 flags.replicate = B_TRUE; 4440 break; 4441 case 's': 4442 flags.skipmissing = B_TRUE; 4443 break; 4444 case 'd': 4445 redactbook = optarg; 4446 break; 4447 case 'p': 4448 flags.props = B_TRUE; 4449 break; 4450 case 'b': 4451 flags.backup = B_TRUE; 4452 break; 4453 case 'h': 4454 flags.holds = B_TRUE; 4455 break; 4456 case 'P': 4457 flags.parsable = B_TRUE; 4458 break; 4459 case 'v': 4460 flags.verbosity++; 4461 flags.progress = B_TRUE; 4462 break; 4463 case 'D': 4464 (void) fprintf(stderr, 4465 gettext("WARNING: deduplicated send is no " 4466 "longer supported. A regular,\n" 4467 "non-deduplicated stream will be generated.\n\n")); 4468 break; 4469 case 'n': 4470 flags.dryrun = B_TRUE; 4471 break; 4472 case 'L': 4473 flags.largeblock = B_TRUE; 4474 break; 4475 case 'e': 4476 flags.embed_data = B_TRUE; 4477 break; 4478 case 't': 4479 resume_token = optarg; 4480 break; 4481 case 'c': 4482 flags.compress = B_TRUE; 4483 break; 4484 case 'w': 4485 flags.raw = B_TRUE; 4486 flags.compress = B_TRUE; 4487 flags.embed_data = B_TRUE; 4488 flags.largeblock = B_TRUE; 4489 break; 4490 case 'S': 4491 flags.saved = B_TRUE; 4492 break; 4493 case ':': 4494 /* 4495 * If a parameter was not passed, optopt contains the 4496 * value that would normally lead us into the 4497 * appropriate case statement. If it's > 256, then this 4498 * must be a longopt and we should look at argv to get 4499 * the string. Otherwise it's just the character, so we 4500 * should use it directly. 4501 */ 4502 if (optopt <= UINT8_MAX) { 4503 (void) fprintf(stderr, 4504 gettext("missing argument for '%c' " 4505 "option\n"), optopt); 4506 } else { 4507 (void) fprintf(stderr, 4508 gettext("missing argument for '%s' " 4509 "option\n"), argv[optind - 1]); 4510 } 4511 usage(B_FALSE); 4512 break; 4513 case '?': 4514 /*FALLTHROUGH*/ 4515 default: 4516 /* 4517 * If an invalid flag was passed, optopt contains the 4518 * character if it was a short flag, or 0 if it was a 4519 * longopt. 4520 */ 4521 if (optopt != 0) { 4522 (void) fprintf(stderr, 4523 gettext("invalid option '%c'\n"), optopt); 4524 } else { 4525 (void) fprintf(stderr, 4526 gettext("invalid option '%s'\n"), 4527 argv[optind - 1]); 4528 4529 } 4530 usage(B_FALSE); 4531 } 4532 } 4533 4534 if (flags.parsable && flags.verbosity == 0) 4535 flags.verbosity = 1; 4536 4537 argc -= optind; 4538 argv += optind; 4539 4540 if (resume_token != NULL) { 4541 if (fromname != NULL || flags.replicate || flags.props || 4542 flags.backup || flags.holds || 4543 flags.saved || redactbook != NULL) { 4544 (void) fprintf(stderr, 4545 gettext("invalid flags combined with -t\n")); 4546 usage(B_FALSE); 4547 } 4548 if (argc > 0) { 4549 (void) fprintf(stderr, gettext("too many arguments\n")); 4550 usage(B_FALSE); 4551 } 4552 } else { 4553 if (argc < 1) { 4554 (void) fprintf(stderr, 4555 gettext("missing snapshot argument\n")); 4556 usage(B_FALSE); 4557 } 4558 if (argc > 1) { 4559 (void) fprintf(stderr, gettext("too many arguments\n")); 4560 usage(B_FALSE); 4561 } 4562 } 4563 4564 if (flags.saved) { 4565 if (fromname != NULL || flags.replicate || flags.props || 4566 flags.doall || flags.backup || 4567 flags.holds || flags.largeblock || flags.embed_data || 4568 flags.compress || flags.raw || redactbook != NULL) { 4569 (void) fprintf(stderr, gettext("incompatible flags " 4570 "combined with saved send flag\n")); 4571 usage(B_FALSE); 4572 } 4573 if (strchr(argv[0], '@') != NULL) { 4574 (void) fprintf(stderr, gettext("saved send must " 4575 "specify the dataset with partially-received " 4576 "state\n")); 4577 usage(B_FALSE); 4578 } 4579 } 4580 4581 if (flags.raw && redactbook != NULL) { 4582 (void) fprintf(stderr, 4583 gettext("Error: raw sends may not be redacted.\n")); 4584 return (1); 4585 } 4586 4587 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 4588 (void) fprintf(stderr, 4589 gettext("Error: Stream can not be written to a terminal.\n" 4590 "You must redirect standard output.\n")); 4591 return (1); 4592 } 4593 4594 if (flags.saved) { 4595 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 4596 if (zhp == NULL) 4597 return (1); 4598 4599 err = zfs_send_saved(zhp, &flags, STDOUT_FILENO, 4600 resume_token); 4601 if (err != 0) 4602 note_dev_error(errno, STDOUT_FILENO); 4603 zfs_close(zhp); 4604 return (err != 0); 4605 } else if (resume_token != NULL) { 4606 err = zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 4607 resume_token); 4608 if (err != 0) 4609 note_dev_error(errno, STDOUT_FILENO); 4610 return (err); 4611 } 4612 4613 if (flags.skipmissing && !flags.replicate) { 4614 (void) fprintf(stderr, 4615 gettext("skip-missing flag can only be used in " 4616 "conjunction with replicate\n")); 4617 usage(B_FALSE); 4618 } 4619 4620 /* 4621 * For everything except -R and -I, use the new, cleaner code path. 4622 */ 4623 if (!(flags.replicate || flags.doall)) { 4624 char frombuf[ZFS_MAX_DATASET_NAME_LEN]; 4625 4626 if (fromname != NULL && (strchr(fromname, '#') == NULL && 4627 strchr(fromname, '@') == NULL)) { 4628 /* 4629 * Neither bookmark or snapshot was specified. Print a 4630 * warning, and assume snapshot. 4631 */ 4632 (void) fprintf(stderr, "Warning: incremental source " 4633 "didn't specify type, assuming snapshot. Use '@' " 4634 "or '#' prefix to avoid ambiguity.\n"); 4635 (void) snprintf(frombuf, sizeof (frombuf), "@%s", 4636 fromname); 4637 fromname = frombuf; 4638 } 4639 if (fromname != NULL && 4640 (fromname[0] == '#' || fromname[0] == '@')) { 4641 /* 4642 * Incremental source name begins with # or @. 4643 * Default to same fs as target. 4644 */ 4645 char tmpbuf[ZFS_MAX_DATASET_NAME_LEN]; 4646 (void) strlcpy(tmpbuf, fromname, sizeof (tmpbuf)); 4647 (void) strlcpy(frombuf, argv[0], sizeof (frombuf)); 4648 cp = strchr(frombuf, '@'); 4649 if (cp != NULL) 4650 *cp = '\0'; 4651 (void) strlcat(frombuf, tmpbuf, sizeof (frombuf)); 4652 fromname = frombuf; 4653 } 4654 4655 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 4656 if (zhp == NULL) 4657 return (1); 4658 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, &flags, 4659 redactbook); 4660 zfs_close(zhp); 4661 if (err != 0) 4662 note_dev_error(errno, STDOUT_FILENO); 4663 return (err != 0); 4664 } 4665 4666 if (fromname != NULL && strchr(fromname, '#')) { 4667 (void) fprintf(stderr, 4668 gettext("Error: multiple snapshots cannot be " 4669 "sent from a bookmark.\n")); 4670 return (1); 4671 } 4672 4673 if (redactbook != NULL) { 4674 (void) fprintf(stderr, gettext("Error: multiple snapshots " 4675 "cannot be sent redacted.\n")); 4676 return (1); 4677 } 4678 4679 if ((cp = strchr(argv[0], '@')) == NULL) { 4680 (void) fprintf(stderr, gettext("Error: " 4681 "Unsupported flag with filesystem or bookmark.\n")); 4682 return (1); 4683 } 4684 *cp = '\0'; 4685 toname = cp + 1; 4686 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4687 if (zhp == NULL) 4688 return (1); 4689 4690 /* 4691 * If they specified the full path to the snapshot, chop off 4692 * everything except the short name of the snapshot, but special 4693 * case if they specify the origin. 4694 */ 4695 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 4696 char origin[ZFS_MAX_DATASET_NAME_LEN]; 4697 zprop_source_t src; 4698 4699 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 4700 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 4701 4702 if (strcmp(origin, fromname) == 0) { 4703 fromname = NULL; 4704 flags.fromorigin = B_TRUE; 4705 } else { 4706 *cp = '\0'; 4707 if (cp != fromname && strcmp(argv[0], fromname)) { 4708 (void) fprintf(stderr, 4709 gettext("incremental source must be " 4710 "in same filesystem\n")); 4711 usage(B_FALSE); 4712 } 4713 fromname = cp + 1; 4714 if (strchr(fromname, '@') || strchr(fromname, '/')) { 4715 (void) fprintf(stderr, 4716 gettext("invalid incremental source\n")); 4717 usage(B_FALSE); 4718 } 4719 } 4720 } 4721 4722 if (flags.replicate && fromname == NULL) 4723 flags.doall = B_TRUE; 4724 4725 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 4726 flags.verbosity >= 3 ? &dbgnv : NULL); 4727 4728 if (flags.verbosity >= 3 && dbgnv != NULL) { 4729 /* 4730 * dump_nvlist prints to stdout, but that's been 4731 * redirected to a file. Make it print to stderr 4732 * instead. 4733 */ 4734 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 4735 dump_nvlist(dbgnv, 0); 4736 nvlist_free(dbgnv); 4737 } 4738 zfs_close(zhp); 4739 note_dev_error(errno, STDOUT_FILENO); 4740 4741 return (err != 0); 4742 } 4743 4744 /* 4745 * Restore a backup stream from stdin. 4746 */ 4747 static int 4748 zfs_do_receive(int argc, char **argv) 4749 { 4750 int c, err = 0; 4751 recvflags_t flags = { 0 }; 4752 boolean_t abort_resumable = B_FALSE; 4753 nvlist_t *props; 4754 4755 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 4756 nomem(); 4757 4758 /* check options */ 4759 while ((c = getopt(argc, argv, ":o:x:dehMnuvFsA")) != -1) { 4760 switch (c) { 4761 case 'o': 4762 if (!parseprop(props, optarg)) { 4763 nvlist_free(props); 4764 usage(B_FALSE); 4765 } 4766 break; 4767 case 'x': 4768 if (!parsepropname(props, optarg)) { 4769 nvlist_free(props); 4770 usage(B_FALSE); 4771 } 4772 break; 4773 case 'd': 4774 if (flags.istail) { 4775 (void) fprintf(stderr, gettext("invalid option " 4776 "combination: -d and -e are mutually " 4777 "exclusive\n")); 4778 usage(B_FALSE); 4779 } 4780 flags.isprefix = B_TRUE; 4781 break; 4782 case 'e': 4783 if (flags.isprefix) { 4784 (void) fprintf(stderr, gettext("invalid option " 4785 "combination: -d and -e are mutually " 4786 "exclusive\n")); 4787 usage(B_FALSE); 4788 } 4789 flags.istail = B_TRUE; 4790 break; 4791 case 'h': 4792 flags.skipholds = B_TRUE; 4793 break; 4794 case 'M': 4795 flags.forceunmount = B_TRUE; 4796 break; 4797 case 'n': 4798 flags.dryrun = B_TRUE; 4799 break; 4800 case 'u': 4801 flags.nomount = B_TRUE; 4802 break; 4803 case 'v': 4804 flags.verbose = B_TRUE; 4805 break; 4806 case 's': 4807 flags.resumable = B_TRUE; 4808 break; 4809 case 'F': 4810 flags.force = B_TRUE; 4811 break; 4812 case 'A': 4813 abort_resumable = B_TRUE; 4814 break; 4815 case ':': 4816 (void) fprintf(stderr, gettext("missing argument for " 4817 "'%c' option\n"), optopt); 4818 usage(B_FALSE); 4819 break; 4820 case '?': 4821 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 4822 optopt); 4823 usage(B_FALSE); 4824 } 4825 } 4826 4827 argc -= optind; 4828 argv += optind; 4829 4830 /* zfs recv -e (use "tail" name) implies -d (remove dataset "head") */ 4831 if (flags.istail) 4832 flags.isprefix = B_TRUE; 4833 4834 /* check number of arguments */ 4835 if (argc < 1) { 4836 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 4837 usage(B_FALSE); 4838 } 4839 if (argc > 1) { 4840 (void) fprintf(stderr, gettext("too many arguments\n")); 4841 usage(B_FALSE); 4842 } 4843 4844 if (abort_resumable) { 4845 if (flags.isprefix || flags.istail || flags.dryrun || 4846 flags.resumable || flags.nomount) { 4847 (void) fprintf(stderr, gettext("invalid option\n")); 4848 usage(B_FALSE); 4849 } 4850 4851 char namebuf[ZFS_MAX_DATASET_NAME_LEN]; 4852 (void) snprintf(namebuf, sizeof (namebuf), 4853 "%s/%%recv", argv[0]); 4854 4855 if (zfs_dataset_exists(g_zfs, namebuf, 4856 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4857 zfs_handle_t *zhp = zfs_open(g_zfs, 4858 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4859 if (zhp == NULL) { 4860 nvlist_free(props); 4861 return (1); 4862 } 4863 err = zfs_destroy(zhp, B_FALSE); 4864 zfs_close(zhp); 4865 } else { 4866 zfs_handle_t *zhp = zfs_open(g_zfs, 4867 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4868 if (zhp == NULL) 4869 usage(B_FALSE); 4870 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4871 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4872 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4873 (void) fprintf(stderr, 4874 gettext("'%s' does not have any " 4875 "resumable receive state to abort\n"), 4876 argv[0]); 4877 nvlist_free(props); 4878 zfs_close(zhp); 4879 return (1); 4880 } 4881 err = zfs_destroy(zhp, B_FALSE); 4882 zfs_close(zhp); 4883 } 4884 nvlist_free(props); 4885 return (err != 0); 4886 } 4887 4888 if (isatty(STDIN_FILENO)) { 4889 (void) fprintf(stderr, 4890 gettext("Error: Backup stream can not be read " 4891 "from a terminal.\n" 4892 "You must redirect standard input.\n")); 4893 nvlist_free(props); 4894 return (1); 4895 } 4896 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4897 nvlist_free(props); 4898 4899 return (err != 0); 4900 } 4901 4902 /* 4903 * allow/unallow stuff 4904 */ 4905 /* copied from zfs/sys/dsl_deleg.h */ 4906 #define ZFS_DELEG_PERM_CREATE "create" 4907 #define ZFS_DELEG_PERM_DESTROY "destroy" 4908 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4909 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4910 #define ZFS_DELEG_PERM_CLONE "clone" 4911 #define ZFS_DELEG_PERM_PROMOTE "promote" 4912 #define ZFS_DELEG_PERM_RENAME "rename" 4913 #define ZFS_DELEG_PERM_MOUNT "mount" 4914 #define ZFS_DELEG_PERM_SHARE "share" 4915 #define ZFS_DELEG_PERM_SEND "send" 4916 #define ZFS_DELEG_PERM_RECEIVE "receive" 4917 #define ZFS_DELEG_PERM_ALLOW "allow" 4918 #define ZFS_DELEG_PERM_USERPROP "userprop" 4919 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4920 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4921 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4922 #define ZFS_DELEG_PERM_USERUSED "userused" 4923 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4924 #define ZFS_DELEG_PERM_USEROBJQUOTA "userobjquota" 4925 #define ZFS_DELEG_PERM_GROUPOBJQUOTA "groupobjquota" 4926 #define ZFS_DELEG_PERM_USEROBJUSED "userobjused" 4927 #define ZFS_DELEG_PERM_GROUPOBJUSED "groupobjused" 4928 4929 #define ZFS_DELEG_PERM_HOLD "hold" 4930 #define ZFS_DELEG_PERM_RELEASE "release" 4931 #define ZFS_DELEG_PERM_DIFF "diff" 4932 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4933 #define ZFS_DELEG_PERM_LOAD_KEY "load-key" 4934 #define ZFS_DELEG_PERM_CHANGE_KEY "change-key" 4935 4936 #define ZFS_DELEG_PERM_PROJECTUSED "projectused" 4937 #define ZFS_DELEG_PERM_PROJECTQUOTA "projectquota" 4938 #define ZFS_DELEG_PERM_PROJECTOBJUSED "projectobjused" 4939 #define ZFS_DELEG_PERM_PROJECTOBJQUOTA "projectobjquota" 4940 4941 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4942 4943 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4944 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4945 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4946 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4947 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4948 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4949 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4950 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4951 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4952 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4953 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4954 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4955 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4956 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4957 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4958 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4959 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4960 { ZFS_DELEG_PERM_LOAD_KEY, ZFS_DELEG_NOTE_LOAD_KEY }, 4961 { ZFS_DELEG_PERM_CHANGE_KEY, ZFS_DELEG_NOTE_CHANGE_KEY }, 4962 4963 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4964 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4965 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4966 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4967 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4968 { ZFS_DELEG_PERM_USEROBJQUOTA, ZFS_DELEG_NOTE_USEROBJQUOTA }, 4969 { ZFS_DELEG_PERM_USEROBJUSED, ZFS_DELEG_NOTE_USEROBJUSED }, 4970 { ZFS_DELEG_PERM_GROUPOBJQUOTA, ZFS_DELEG_NOTE_GROUPOBJQUOTA }, 4971 { ZFS_DELEG_PERM_GROUPOBJUSED, ZFS_DELEG_NOTE_GROUPOBJUSED }, 4972 { ZFS_DELEG_PERM_PROJECTUSED, ZFS_DELEG_NOTE_PROJECTUSED }, 4973 { ZFS_DELEG_PERM_PROJECTQUOTA, ZFS_DELEG_NOTE_PROJECTQUOTA }, 4974 { ZFS_DELEG_PERM_PROJECTOBJUSED, ZFS_DELEG_NOTE_PROJECTOBJUSED }, 4975 { ZFS_DELEG_PERM_PROJECTOBJQUOTA, ZFS_DELEG_NOTE_PROJECTOBJQUOTA }, 4976 { NULL, ZFS_DELEG_NOTE_NONE } 4977 }; 4978 4979 /* permission structure */ 4980 typedef struct deleg_perm { 4981 zfs_deleg_who_type_t dp_who_type; 4982 const char *dp_name; 4983 boolean_t dp_local; 4984 boolean_t dp_descend; 4985 } deleg_perm_t; 4986 4987 /* */ 4988 typedef struct deleg_perm_node { 4989 deleg_perm_t dpn_perm; 4990 4991 uu_avl_node_t dpn_avl_node; 4992 } deleg_perm_node_t; 4993 4994 typedef struct fs_perm fs_perm_t; 4995 4996 /* permissions set */ 4997 typedef struct who_perm { 4998 zfs_deleg_who_type_t who_type; 4999 const char *who_name; /* id */ 5000 char who_ug_name[256]; /* user/group name */ 5001 fs_perm_t *who_fsperm; /* uplink */ 5002 5003 uu_avl_t *who_deleg_perm_avl; /* permissions */ 5004 } who_perm_t; 5005 5006 /* */ 5007 typedef struct who_perm_node { 5008 who_perm_t who_perm; 5009 uu_avl_node_t who_avl_node; 5010 } who_perm_node_t; 5011 5012 typedef struct fs_perm_set fs_perm_set_t; 5013 /* fs permissions */ 5014 struct fs_perm { 5015 const char *fsp_name; 5016 5017 uu_avl_t *fsp_sc_avl; /* sets,create */ 5018 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 5019 5020 fs_perm_set_t *fsp_set; /* uplink */ 5021 }; 5022 5023 /* */ 5024 typedef struct fs_perm_node { 5025 fs_perm_t fspn_fsperm; 5026 uu_avl_t *fspn_avl; 5027 5028 uu_list_node_t fspn_list_node; 5029 } fs_perm_node_t; 5030 5031 /* top level structure */ 5032 struct fs_perm_set { 5033 uu_list_pool_t *fsps_list_pool; 5034 uu_list_t *fsps_list; /* list of fs_perms */ 5035 5036 uu_avl_pool_t *fsps_named_set_avl_pool; 5037 uu_avl_pool_t *fsps_who_perm_avl_pool; 5038 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 5039 }; 5040 5041 static inline const char * 5042 deleg_perm_type(zfs_deleg_note_t note) 5043 { 5044 /* subcommands */ 5045 switch (note) { 5046 /* SUBCOMMANDS */ 5047 /* OTHER */ 5048 case ZFS_DELEG_NOTE_GROUPQUOTA: 5049 case ZFS_DELEG_NOTE_GROUPUSED: 5050 case ZFS_DELEG_NOTE_USERPROP: 5051 case ZFS_DELEG_NOTE_USERQUOTA: 5052 case ZFS_DELEG_NOTE_USERUSED: 5053 case ZFS_DELEG_NOTE_USEROBJQUOTA: 5054 case ZFS_DELEG_NOTE_USEROBJUSED: 5055 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 5056 case ZFS_DELEG_NOTE_GROUPOBJUSED: 5057 case ZFS_DELEG_NOTE_PROJECTUSED: 5058 case ZFS_DELEG_NOTE_PROJECTQUOTA: 5059 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 5060 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 5061 /* other */ 5062 return (gettext("other")); 5063 default: 5064 return (gettext("subcommand")); 5065 } 5066 } 5067 5068 static int 5069 who_type2weight(zfs_deleg_who_type_t who_type) 5070 { 5071 int res; 5072 switch (who_type) { 5073 case ZFS_DELEG_NAMED_SET_SETS: 5074 case ZFS_DELEG_NAMED_SET: 5075 res = 0; 5076 break; 5077 case ZFS_DELEG_CREATE_SETS: 5078 case ZFS_DELEG_CREATE: 5079 res = 1; 5080 break; 5081 case ZFS_DELEG_USER_SETS: 5082 case ZFS_DELEG_USER: 5083 res = 2; 5084 break; 5085 case ZFS_DELEG_GROUP_SETS: 5086 case ZFS_DELEG_GROUP: 5087 res = 3; 5088 break; 5089 case ZFS_DELEG_EVERYONE_SETS: 5090 case ZFS_DELEG_EVERYONE: 5091 res = 4; 5092 break; 5093 default: 5094 res = -1; 5095 } 5096 5097 return (res); 5098 } 5099 5100 /* ARGSUSED */ 5101 static int 5102 who_perm_compare(const void *larg, const void *rarg, void *unused) 5103 { 5104 const who_perm_node_t *l = larg; 5105 const who_perm_node_t *r = rarg; 5106 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 5107 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 5108 int lweight = who_type2weight(ltype); 5109 int rweight = who_type2weight(rtype); 5110 int res = lweight - rweight; 5111 if (res == 0) 5112 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 5113 ZFS_MAX_DELEG_NAME-1); 5114 5115 if (res == 0) 5116 return (0); 5117 if (res > 0) 5118 return (1); 5119 else 5120 return (-1); 5121 } 5122 5123 /* ARGSUSED */ 5124 static int 5125 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 5126 { 5127 const deleg_perm_node_t *l = larg; 5128 const deleg_perm_node_t *r = rarg; 5129 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 5130 ZFS_MAX_DELEG_NAME-1); 5131 5132 if (res == 0) 5133 return (0); 5134 5135 if (res > 0) 5136 return (1); 5137 else 5138 return (-1); 5139 } 5140 5141 static inline void 5142 fs_perm_set_init(fs_perm_set_t *fspset) 5143 { 5144 bzero(fspset, sizeof (fs_perm_set_t)); 5145 5146 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 5147 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 5148 NULL, UU_DEFAULT)) == NULL) 5149 nomem(); 5150 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 5151 UU_DEFAULT)) == NULL) 5152 nomem(); 5153 5154 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 5155 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 5156 who_perm_node_t, who_avl_node), who_perm_compare, 5157 UU_DEFAULT)) == NULL) 5158 nomem(); 5159 5160 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 5161 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 5162 who_perm_node_t, who_avl_node), who_perm_compare, 5163 UU_DEFAULT)) == NULL) 5164 nomem(); 5165 5166 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 5167 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 5168 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 5169 == NULL) 5170 nomem(); 5171 } 5172 5173 static inline void fs_perm_fini(fs_perm_t *); 5174 static inline void who_perm_fini(who_perm_t *); 5175 5176 static inline void 5177 fs_perm_set_fini(fs_perm_set_t *fspset) 5178 { 5179 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 5180 5181 while (node != NULL) { 5182 fs_perm_node_t *next_node = 5183 uu_list_next(fspset->fsps_list, node); 5184 fs_perm_t *fsperm = &node->fspn_fsperm; 5185 fs_perm_fini(fsperm); 5186 uu_list_remove(fspset->fsps_list, node); 5187 free(node); 5188 node = next_node; 5189 } 5190 5191 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 5192 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 5193 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 5194 } 5195 5196 static inline void 5197 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 5198 const char *name) 5199 { 5200 deleg_perm->dp_who_type = type; 5201 deleg_perm->dp_name = name; 5202 } 5203 5204 static inline void 5205 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 5206 zfs_deleg_who_type_t type, const char *name) 5207 { 5208 uu_avl_pool_t *pool; 5209 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 5210 5211 bzero(who_perm, sizeof (who_perm_t)); 5212 5213 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 5214 UU_DEFAULT)) == NULL) 5215 nomem(); 5216 5217 who_perm->who_type = type; 5218 who_perm->who_name = name; 5219 who_perm->who_fsperm = fsperm; 5220 } 5221 5222 static inline void 5223 who_perm_fini(who_perm_t *who_perm) 5224 { 5225 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 5226 5227 while (node != NULL) { 5228 deleg_perm_node_t *next_node = 5229 uu_avl_next(who_perm->who_deleg_perm_avl, node); 5230 5231 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 5232 free(node); 5233 node = next_node; 5234 } 5235 5236 uu_avl_destroy(who_perm->who_deleg_perm_avl); 5237 } 5238 5239 static inline void 5240 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 5241 { 5242 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 5243 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 5244 5245 bzero(fsperm, sizeof (fs_perm_t)); 5246 5247 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 5248 == NULL) 5249 nomem(); 5250 5251 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 5252 == NULL) 5253 nomem(); 5254 5255 fsperm->fsp_set = fspset; 5256 fsperm->fsp_name = fsname; 5257 } 5258 5259 static inline void 5260 fs_perm_fini(fs_perm_t *fsperm) 5261 { 5262 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 5263 while (node != NULL) { 5264 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 5265 node); 5266 who_perm_t *who_perm = &node->who_perm; 5267 who_perm_fini(who_perm); 5268 uu_avl_remove(fsperm->fsp_sc_avl, node); 5269 free(node); 5270 node = next_node; 5271 } 5272 5273 node = uu_avl_first(fsperm->fsp_uge_avl); 5274 while (node != NULL) { 5275 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 5276 node); 5277 who_perm_t *who_perm = &node->who_perm; 5278 who_perm_fini(who_perm); 5279 uu_avl_remove(fsperm->fsp_uge_avl, node); 5280 free(node); 5281 node = next_node; 5282 } 5283 5284 uu_avl_destroy(fsperm->fsp_sc_avl); 5285 uu_avl_destroy(fsperm->fsp_uge_avl); 5286 } 5287 5288 static void 5289 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 5290 zfs_deleg_who_type_t who_type, const char *name, char locality) 5291 { 5292 uu_avl_index_t idx = 0; 5293 5294 deleg_perm_node_t *found_node = NULL; 5295 deleg_perm_t *deleg_perm = &node->dpn_perm; 5296 5297 deleg_perm_init(deleg_perm, who_type, name); 5298 5299 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 5300 == NULL) 5301 uu_avl_insert(avl, node, idx); 5302 else { 5303 node = found_node; 5304 deleg_perm = &node->dpn_perm; 5305 } 5306 5307 5308 switch (locality) { 5309 case ZFS_DELEG_LOCAL: 5310 deleg_perm->dp_local = B_TRUE; 5311 break; 5312 case ZFS_DELEG_DESCENDENT: 5313 deleg_perm->dp_descend = B_TRUE; 5314 break; 5315 case ZFS_DELEG_NA: 5316 break; 5317 default: 5318 assert(B_FALSE); /* invalid locality */ 5319 } 5320 } 5321 5322 static inline int 5323 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 5324 { 5325 nvpair_t *nvp = NULL; 5326 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 5327 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 5328 zfs_deleg_who_type_t who_type = who_perm->who_type; 5329 5330 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5331 const char *name = nvpair_name(nvp); 5332 data_type_t type = nvpair_type(nvp); 5333 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 5334 deleg_perm_node_t *node = 5335 safe_malloc(sizeof (deleg_perm_node_t)); 5336 5337 VERIFY(type == DATA_TYPE_BOOLEAN); 5338 5339 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 5340 set_deleg_perm_node(avl, node, who_type, name, locality); 5341 } 5342 5343 return (0); 5344 } 5345 5346 static inline int 5347 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 5348 { 5349 nvpair_t *nvp = NULL; 5350 fs_perm_set_t *fspset = fsperm->fsp_set; 5351 5352 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5353 nvlist_t *nvl2 = NULL; 5354 const char *name = nvpair_name(nvp); 5355 uu_avl_t *avl = NULL; 5356 uu_avl_pool_t *avl_pool = NULL; 5357 zfs_deleg_who_type_t perm_type = name[0]; 5358 char perm_locality = name[1]; 5359 const char *perm_name = name + 3; 5360 who_perm_t *who_perm = NULL; 5361 5362 assert('$' == name[2]); 5363 5364 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 5365 return (-1); 5366 5367 switch (perm_type) { 5368 case ZFS_DELEG_CREATE: 5369 case ZFS_DELEG_CREATE_SETS: 5370 case ZFS_DELEG_NAMED_SET: 5371 case ZFS_DELEG_NAMED_SET_SETS: 5372 avl_pool = fspset->fsps_named_set_avl_pool; 5373 avl = fsperm->fsp_sc_avl; 5374 break; 5375 case ZFS_DELEG_USER: 5376 case ZFS_DELEG_USER_SETS: 5377 case ZFS_DELEG_GROUP: 5378 case ZFS_DELEG_GROUP_SETS: 5379 case ZFS_DELEG_EVERYONE: 5380 case ZFS_DELEG_EVERYONE_SETS: 5381 avl_pool = fspset->fsps_who_perm_avl_pool; 5382 avl = fsperm->fsp_uge_avl; 5383 break; 5384 5385 default: 5386 assert(!"unhandled zfs_deleg_who_type_t"); 5387 } 5388 5389 who_perm_node_t *found_node = NULL; 5390 who_perm_node_t *node = safe_malloc( 5391 sizeof (who_perm_node_t)); 5392 who_perm = &node->who_perm; 5393 uu_avl_index_t idx = 0; 5394 5395 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 5396 who_perm_init(who_perm, fsperm, perm_type, perm_name); 5397 5398 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 5399 == NULL) { 5400 if (avl == fsperm->fsp_uge_avl) { 5401 uid_t rid = 0; 5402 struct passwd *p = NULL; 5403 struct group *g = NULL; 5404 const char *nice_name = NULL; 5405 5406 switch (perm_type) { 5407 case ZFS_DELEG_USER_SETS: 5408 case ZFS_DELEG_USER: 5409 rid = atoi(perm_name); 5410 p = getpwuid(rid); 5411 if (p) 5412 nice_name = p->pw_name; 5413 break; 5414 case ZFS_DELEG_GROUP_SETS: 5415 case ZFS_DELEG_GROUP: 5416 rid = atoi(perm_name); 5417 g = getgrgid(rid); 5418 if (g) 5419 nice_name = g->gr_name; 5420 break; 5421 5422 default: 5423 break; 5424 } 5425 5426 if (nice_name != NULL) { 5427 (void) strlcpy( 5428 node->who_perm.who_ug_name, 5429 nice_name, 256); 5430 } else { 5431 /* User or group unknown */ 5432 (void) snprintf( 5433 node->who_perm.who_ug_name, 5434 sizeof (node->who_perm.who_ug_name), 5435 "(unknown: %d)", rid); 5436 } 5437 } 5438 5439 uu_avl_insert(avl, node, idx); 5440 } else { 5441 node = found_node; 5442 who_perm = &node->who_perm; 5443 } 5444 5445 assert(who_perm != NULL); 5446 (void) parse_who_perm(who_perm, nvl2, perm_locality); 5447 } 5448 5449 return (0); 5450 } 5451 5452 static inline int 5453 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 5454 { 5455 nvpair_t *nvp = NULL; 5456 uu_avl_index_t idx = 0; 5457 5458 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5459 nvlist_t *nvl2 = NULL; 5460 const char *fsname = nvpair_name(nvp); 5461 data_type_t type = nvpair_type(nvp); 5462 fs_perm_t *fsperm = NULL; 5463 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 5464 if (node == NULL) 5465 nomem(); 5466 5467 fsperm = &node->fspn_fsperm; 5468 5469 VERIFY(DATA_TYPE_NVLIST == type); 5470 5471 uu_list_node_init(node, &node->fspn_list_node, 5472 fspset->fsps_list_pool); 5473 5474 idx = uu_list_numnodes(fspset->fsps_list); 5475 fs_perm_init(fsperm, fspset, fsname); 5476 5477 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 5478 return (-1); 5479 5480 (void) parse_fs_perm(fsperm, nvl2); 5481 5482 uu_list_insert(fspset->fsps_list, node, idx); 5483 } 5484 5485 return (0); 5486 } 5487 5488 static inline const char * 5489 deleg_perm_comment(zfs_deleg_note_t note) 5490 { 5491 const char *str = ""; 5492 5493 /* subcommands */ 5494 switch (note) { 5495 /* SUBCOMMANDS */ 5496 case ZFS_DELEG_NOTE_ALLOW: 5497 str = gettext("Must also have the permission that is being" 5498 "\n\t\t\t\tallowed"); 5499 break; 5500 case ZFS_DELEG_NOTE_CLONE: 5501 str = gettext("Must also have the 'create' ability and 'mount'" 5502 "\n\t\t\t\tability in the origin file system"); 5503 break; 5504 case ZFS_DELEG_NOTE_CREATE: 5505 str = gettext("Must also have the 'mount' ability"); 5506 break; 5507 case ZFS_DELEG_NOTE_DESTROY: 5508 str = gettext("Must also have the 'mount' ability"); 5509 break; 5510 case ZFS_DELEG_NOTE_DIFF: 5511 str = gettext("Allows lookup of paths within a dataset;" 5512 "\n\t\t\t\tgiven an object number. Ordinary users need this" 5513 "\n\t\t\t\tin order to use zfs diff"); 5514 break; 5515 case ZFS_DELEG_NOTE_HOLD: 5516 str = gettext("Allows adding a user hold to a snapshot"); 5517 break; 5518 case ZFS_DELEG_NOTE_MOUNT: 5519 str = gettext("Allows mount/umount of ZFS datasets"); 5520 break; 5521 case ZFS_DELEG_NOTE_PROMOTE: 5522 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 5523 " 'promote' ability in the origin file system"); 5524 break; 5525 case ZFS_DELEG_NOTE_RECEIVE: 5526 str = gettext("Must also have the 'mount' and 'create'" 5527 " ability"); 5528 break; 5529 case ZFS_DELEG_NOTE_RELEASE: 5530 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 5531 "might destroy the snapshot"); 5532 break; 5533 case ZFS_DELEG_NOTE_RENAME: 5534 str = gettext("Must also have the 'mount' and 'create'" 5535 "\n\t\t\t\tability in the new parent"); 5536 break; 5537 case ZFS_DELEG_NOTE_ROLLBACK: 5538 str = gettext(""); 5539 break; 5540 case ZFS_DELEG_NOTE_SEND: 5541 str = gettext(""); 5542 break; 5543 case ZFS_DELEG_NOTE_SHARE: 5544 str = gettext("Allows sharing file systems over NFS or SMB" 5545 "\n\t\t\t\tprotocols"); 5546 break; 5547 case ZFS_DELEG_NOTE_SNAPSHOT: 5548 str = gettext(""); 5549 break; 5550 case ZFS_DELEG_NOTE_LOAD_KEY: 5551 str = gettext("Allows loading or unloading an encryption key"); 5552 break; 5553 case ZFS_DELEG_NOTE_CHANGE_KEY: 5554 str = gettext("Allows changing or adding an encryption key"); 5555 break; 5556 /* 5557 * case ZFS_DELEG_NOTE_VSCAN: 5558 * str = gettext(""); 5559 * break; 5560 */ 5561 /* OTHER */ 5562 case ZFS_DELEG_NOTE_GROUPQUOTA: 5563 str = gettext("Allows accessing any groupquota@... property"); 5564 break; 5565 case ZFS_DELEG_NOTE_GROUPUSED: 5566 str = gettext("Allows reading any groupused@... property"); 5567 break; 5568 case ZFS_DELEG_NOTE_USERPROP: 5569 str = gettext("Allows changing any user property"); 5570 break; 5571 case ZFS_DELEG_NOTE_USERQUOTA: 5572 str = gettext("Allows accessing any userquota@... property"); 5573 break; 5574 case ZFS_DELEG_NOTE_USERUSED: 5575 str = gettext("Allows reading any userused@... property"); 5576 break; 5577 case ZFS_DELEG_NOTE_USEROBJQUOTA: 5578 str = gettext("Allows accessing any userobjquota@... property"); 5579 break; 5580 case ZFS_DELEG_NOTE_GROUPOBJQUOTA: 5581 str = gettext("Allows accessing any \n\t\t\t\t" 5582 "groupobjquota@... property"); 5583 break; 5584 case ZFS_DELEG_NOTE_GROUPOBJUSED: 5585 str = gettext("Allows reading any groupobjused@... property"); 5586 break; 5587 case ZFS_DELEG_NOTE_USEROBJUSED: 5588 str = gettext("Allows reading any userobjused@... property"); 5589 break; 5590 case ZFS_DELEG_NOTE_PROJECTQUOTA: 5591 str = gettext("Allows accessing any projectquota@... property"); 5592 break; 5593 case ZFS_DELEG_NOTE_PROJECTOBJQUOTA: 5594 str = gettext("Allows accessing any \n\t\t\t\t" 5595 "projectobjquota@... property"); 5596 break; 5597 case ZFS_DELEG_NOTE_PROJECTUSED: 5598 str = gettext("Allows reading any projectused@... property"); 5599 break; 5600 case ZFS_DELEG_NOTE_PROJECTOBJUSED: 5601 str = gettext("Allows accessing any \n\t\t\t\t" 5602 "projectobjused@... property"); 5603 break; 5604 /* other */ 5605 default: 5606 str = ""; 5607 } 5608 5609 return (str); 5610 } 5611 5612 struct allow_opts { 5613 boolean_t local; 5614 boolean_t descend; 5615 boolean_t user; 5616 boolean_t group; 5617 boolean_t everyone; 5618 boolean_t create; 5619 boolean_t set; 5620 boolean_t recursive; /* unallow only */ 5621 boolean_t prt_usage; 5622 5623 boolean_t prt_perms; 5624 char *who; 5625 char *perms; 5626 const char *dataset; 5627 }; 5628 5629 static inline int 5630 prop_cmp(const void *a, const void *b) 5631 { 5632 const char *str1 = *(const char **)a; 5633 const char *str2 = *(const char **)b; 5634 return (strcmp(str1, str2)); 5635 } 5636 5637 static void 5638 allow_usage(boolean_t un, boolean_t requested, const char *msg) 5639 { 5640 const char *opt_desc[] = { 5641 "-h", gettext("show this help message and exit"), 5642 "-l", gettext("set permission locally"), 5643 "-d", gettext("set permission for descents"), 5644 "-u", gettext("set permission for user"), 5645 "-g", gettext("set permission for group"), 5646 "-e", gettext("set permission for everyone"), 5647 "-c", gettext("set create time permission"), 5648 "-s", gettext("define permission set"), 5649 /* unallow only */ 5650 "-r", gettext("remove permissions recursively"), 5651 }; 5652 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 5653 size_t allow_size = unallow_size - 2; 5654 const char *props[ZFS_NUM_PROPS]; 5655 int i; 5656 size_t count = 0; 5657 FILE *fp = requested ? stdout : stderr; 5658 zprop_desc_t *pdtbl = zfs_prop_get_table(); 5659 const char *fmt = gettext("%-16s %-14s\t%s\n"); 5660 5661 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 5662 HELP_ALLOW)); 5663 (void) fprintf(fp, gettext("Options:\n")); 5664 for (i = 0; i < (un ? unallow_size : allow_size); i += 2) { 5665 const char *opt = opt_desc[i]; 5666 const char *optdsc = opt_desc[i + 1]; 5667 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 5668 } 5669 5670 (void) fprintf(fp, gettext("\nThe following permissions are " 5671 "supported:\n\n")); 5672 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 5673 gettext("NOTES")); 5674 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 5675 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 5676 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 5677 const char *perm_type = deleg_perm_type(perm_note); 5678 const char *perm_comment = deleg_perm_comment(perm_note); 5679 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 5680 } 5681 5682 for (i = 0; i < ZFS_NUM_PROPS; i++) { 5683 zprop_desc_t *pd = &pdtbl[i]; 5684 if (pd->pd_visible != B_TRUE) 5685 continue; 5686 5687 if (pd->pd_attr == PROP_READONLY) 5688 continue; 5689 5690 props[count++] = pd->pd_name; 5691 } 5692 props[count] = NULL; 5693 5694 qsort(props, count, sizeof (char *), prop_cmp); 5695 5696 for (i = 0; i < count; i++) 5697 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 5698 5699 if (msg != NULL) 5700 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 5701 5702 exit(requested ? 0 : 2); 5703 } 5704 5705 static inline const char * 5706 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 5707 char **permsp) 5708 { 5709 if (un && argc == expected_argc - 1) 5710 *permsp = NULL; 5711 else if (argc == expected_argc) 5712 *permsp = argv[argc - 2]; 5713 else 5714 allow_usage(un, B_FALSE, 5715 gettext("wrong number of parameters\n")); 5716 5717 return (argv[argc - 1]); 5718 } 5719 5720 static void 5721 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 5722 { 5723 int uge_sum = opts->user + opts->group + opts->everyone; 5724 int csuge_sum = opts->create + opts->set + uge_sum; 5725 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 5726 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 5727 5728 if (uge_sum > 1) 5729 allow_usage(un, B_FALSE, 5730 gettext("-u, -g, and -e are mutually exclusive\n")); 5731 5732 if (opts->prt_usage) { 5733 if (argc == 0 && all_sum == 0) 5734 allow_usage(un, B_TRUE, NULL); 5735 else 5736 usage(B_FALSE); 5737 } 5738 5739 if (opts->set) { 5740 if (csuge_sum > 1) 5741 allow_usage(un, B_FALSE, 5742 gettext("invalid options combined with -s\n")); 5743 5744 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5745 if (argv[0][0] != '@') 5746 allow_usage(un, B_FALSE, 5747 gettext("invalid set name: missing '@' prefix\n")); 5748 opts->who = argv[0]; 5749 } else if (opts->create) { 5750 if (ldcsuge_sum > 1) 5751 allow_usage(un, B_FALSE, 5752 gettext("invalid options combined with -c\n")); 5753 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5754 } else if (opts->everyone) { 5755 if (csuge_sum > 1) 5756 allow_usage(un, B_FALSE, 5757 gettext("invalid options combined with -e\n")); 5758 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5759 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 5760 == 0) { 5761 opts->everyone = B_TRUE; 5762 argc--; 5763 argv++; 5764 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 5765 } else if (argc == 1 && !un) { 5766 opts->prt_perms = B_TRUE; 5767 opts->dataset = argv[argc-1]; 5768 } else { 5769 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 5770 opts->who = argv[0]; 5771 } 5772 5773 if (!opts->local && !opts->descend) { 5774 opts->local = B_TRUE; 5775 opts->descend = B_TRUE; 5776 } 5777 } 5778 5779 static void 5780 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 5781 const char *who, char *perms, nvlist_t *top_nvl) 5782 { 5783 int i; 5784 char ld[2] = { '\0', '\0' }; 5785 char who_buf[MAXNAMELEN + 32]; 5786 char base_type = '\0'; 5787 char set_type = '\0'; 5788 nvlist_t *base_nvl = NULL; 5789 nvlist_t *set_nvl = NULL; 5790 nvlist_t *nvl; 5791 5792 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 5793 nomem(); 5794 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 5795 nomem(); 5796 5797 switch (type) { 5798 case ZFS_DELEG_NAMED_SET_SETS: 5799 case ZFS_DELEG_NAMED_SET: 5800 set_type = ZFS_DELEG_NAMED_SET_SETS; 5801 base_type = ZFS_DELEG_NAMED_SET; 5802 ld[0] = ZFS_DELEG_NA; 5803 break; 5804 case ZFS_DELEG_CREATE_SETS: 5805 case ZFS_DELEG_CREATE: 5806 set_type = ZFS_DELEG_CREATE_SETS; 5807 base_type = ZFS_DELEG_CREATE; 5808 ld[0] = ZFS_DELEG_NA; 5809 break; 5810 case ZFS_DELEG_USER_SETS: 5811 case ZFS_DELEG_USER: 5812 set_type = ZFS_DELEG_USER_SETS; 5813 base_type = ZFS_DELEG_USER; 5814 if (local) 5815 ld[0] = ZFS_DELEG_LOCAL; 5816 if (descend) 5817 ld[1] = ZFS_DELEG_DESCENDENT; 5818 break; 5819 case ZFS_DELEG_GROUP_SETS: 5820 case ZFS_DELEG_GROUP: 5821 set_type = ZFS_DELEG_GROUP_SETS; 5822 base_type = ZFS_DELEG_GROUP; 5823 if (local) 5824 ld[0] = ZFS_DELEG_LOCAL; 5825 if (descend) 5826 ld[1] = ZFS_DELEG_DESCENDENT; 5827 break; 5828 case ZFS_DELEG_EVERYONE_SETS: 5829 case ZFS_DELEG_EVERYONE: 5830 set_type = ZFS_DELEG_EVERYONE_SETS; 5831 base_type = ZFS_DELEG_EVERYONE; 5832 if (local) 5833 ld[0] = ZFS_DELEG_LOCAL; 5834 if (descend) 5835 ld[1] = ZFS_DELEG_DESCENDENT; 5836 break; 5837 5838 default: 5839 assert(set_type != '\0' && base_type != '\0'); 5840 } 5841 5842 if (perms != NULL) { 5843 char *curr = perms; 5844 char *end = curr + strlen(perms); 5845 5846 while (curr < end) { 5847 char *delim = strchr(curr, ','); 5848 if (delim == NULL) 5849 delim = end; 5850 else 5851 *delim = '\0'; 5852 5853 if (curr[0] == '@') 5854 nvl = set_nvl; 5855 else 5856 nvl = base_nvl; 5857 5858 (void) nvlist_add_boolean(nvl, curr); 5859 if (delim != end) 5860 *delim = ','; 5861 curr = delim + 1; 5862 } 5863 5864 for (i = 0; i < 2; i++) { 5865 char locality = ld[i]; 5866 if (locality == 0) 5867 continue; 5868 5869 if (!nvlist_empty(base_nvl)) { 5870 if (who != NULL) 5871 (void) snprintf(who_buf, 5872 sizeof (who_buf), "%c%c$%s", 5873 base_type, locality, who); 5874 else 5875 (void) snprintf(who_buf, 5876 sizeof (who_buf), "%c%c$", 5877 base_type, locality); 5878 5879 (void) nvlist_add_nvlist(top_nvl, who_buf, 5880 base_nvl); 5881 } 5882 5883 5884 if (!nvlist_empty(set_nvl)) { 5885 if (who != NULL) 5886 (void) snprintf(who_buf, 5887 sizeof (who_buf), "%c%c$%s", 5888 set_type, locality, who); 5889 else 5890 (void) snprintf(who_buf, 5891 sizeof (who_buf), "%c%c$", 5892 set_type, locality); 5893 5894 (void) nvlist_add_nvlist(top_nvl, who_buf, 5895 set_nvl); 5896 } 5897 } 5898 } else { 5899 for (i = 0; i < 2; i++) { 5900 char locality = ld[i]; 5901 if (locality == 0) 5902 continue; 5903 5904 if (who != NULL) 5905 (void) snprintf(who_buf, sizeof (who_buf), 5906 "%c%c$%s", base_type, locality, who); 5907 else 5908 (void) snprintf(who_buf, sizeof (who_buf), 5909 "%c%c$", base_type, locality); 5910 (void) nvlist_add_boolean(top_nvl, who_buf); 5911 5912 if (who != NULL) 5913 (void) snprintf(who_buf, sizeof (who_buf), 5914 "%c%c$%s", set_type, locality, who); 5915 else 5916 (void) snprintf(who_buf, sizeof (who_buf), 5917 "%c%c$", set_type, locality); 5918 (void) nvlist_add_boolean(top_nvl, who_buf); 5919 } 5920 } 5921 } 5922 5923 static int 5924 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 5925 { 5926 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 5927 nomem(); 5928 5929 if (opts->set) { 5930 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 5931 opts->descend, opts->who, opts->perms, *nvlp); 5932 } else if (opts->create) { 5933 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5934 opts->descend, NULL, opts->perms, *nvlp); 5935 } else if (opts->everyone) { 5936 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5937 opts->descend, NULL, opts->perms, *nvlp); 5938 } else { 5939 char *curr = opts->who; 5940 char *end = curr + strlen(curr); 5941 5942 while (curr < end) { 5943 const char *who; 5944 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5945 char *endch; 5946 char *delim = strchr(curr, ','); 5947 char errbuf[256]; 5948 char id[64]; 5949 struct passwd *p = NULL; 5950 struct group *g = NULL; 5951 5952 uid_t rid; 5953 if (delim == NULL) 5954 delim = end; 5955 else 5956 *delim = '\0'; 5957 5958 rid = (uid_t)strtol(curr, &endch, 0); 5959 if (opts->user) { 5960 who_type = ZFS_DELEG_USER; 5961 if (*endch != '\0') 5962 p = getpwnam(curr); 5963 else 5964 p = getpwuid(rid); 5965 5966 if (p != NULL) 5967 rid = p->pw_uid; 5968 else if (*endch != '\0') { 5969 (void) snprintf(errbuf, 256, gettext( 5970 "invalid user %s\n"), curr); 5971 allow_usage(un, B_TRUE, errbuf); 5972 } 5973 } else if (opts->group) { 5974 who_type = ZFS_DELEG_GROUP; 5975 if (*endch != '\0') 5976 g = getgrnam(curr); 5977 else 5978 g = getgrgid(rid); 5979 5980 if (g != NULL) 5981 rid = g->gr_gid; 5982 else if (*endch != '\0') { 5983 (void) snprintf(errbuf, 256, gettext( 5984 "invalid group %s\n"), curr); 5985 allow_usage(un, B_TRUE, errbuf); 5986 } 5987 } else { 5988 if (*endch != '\0') { 5989 p = getpwnam(curr); 5990 } else { 5991 p = getpwuid(rid); 5992 } 5993 5994 if (p == NULL) { 5995 if (*endch != '\0') { 5996 g = getgrnam(curr); 5997 } else { 5998 g = getgrgid(rid); 5999 } 6000 } 6001 6002 if (p != NULL) { 6003 who_type = ZFS_DELEG_USER; 6004 rid = p->pw_uid; 6005 } else if (g != NULL) { 6006 who_type = ZFS_DELEG_GROUP; 6007 rid = g->gr_gid; 6008 } else { 6009 (void) snprintf(errbuf, 256, gettext( 6010 "invalid user/group %s\n"), curr); 6011 allow_usage(un, B_TRUE, errbuf); 6012 } 6013 } 6014 6015 (void) sprintf(id, "%u", rid); 6016 who = id; 6017 6018 store_allow_perm(who_type, opts->local, 6019 opts->descend, who, opts->perms, *nvlp); 6020 curr = delim + 1; 6021 } 6022 } 6023 6024 return (0); 6025 } 6026 6027 static void 6028 print_set_creat_perms(uu_avl_t *who_avl) 6029 { 6030 const char *sc_title[] = { 6031 gettext("Permission sets:\n"), 6032 gettext("Create time permissions:\n"), 6033 NULL 6034 }; 6035 who_perm_node_t *who_node = NULL; 6036 int prev_weight = -1; 6037 6038 for (who_node = uu_avl_first(who_avl); who_node != NULL; 6039 who_node = uu_avl_next(who_avl, who_node)) { 6040 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 6041 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 6042 const char *who_name = who_node->who_perm.who_name; 6043 int weight = who_type2weight(who_type); 6044 boolean_t first = B_TRUE; 6045 deleg_perm_node_t *deleg_node; 6046 6047 if (prev_weight != weight) { 6048 (void) printf("%s", sc_title[weight]); 6049 prev_weight = weight; 6050 } 6051 6052 if (who_name == NULL || strnlen(who_name, 1) == 0) 6053 (void) printf("\t"); 6054 else 6055 (void) printf("\t%s ", who_name); 6056 6057 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 6058 deleg_node = uu_avl_next(avl, deleg_node)) { 6059 if (first) { 6060 (void) printf("%s", 6061 deleg_node->dpn_perm.dp_name); 6062 first = B_FALSE; 6063 } else 6064 (void) printf(",%s", 6065 deleg_node->dpn_perm.dp_name); 6066 } 6067 6068 (void) printf("\n"); 6069 } 6070 } 6071 6072 static void 6073 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 6074 const char *title) 6075 { 6076 who_perm_node_t *who_node = NULL; 6077 boolean_t prt_title = B_TRUE; 6078 uu_avl_walk_t *walk; 6079 6080 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 6081 nomem(); 6082 6083 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 6084 const char *who_name = who_node->who_perm.who_name; 6085 const char *nice_who_name = who_node->who_perm.who_ug_name; 6086 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 6087 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 6088 char delim = ' '; 6089 deleg_perm_node_t *deleg_node; 6090 boolean_t prt_who = B_TRUE; 6091 6092 for (deleg_node = uu_avl_first(avl); 6093 deleg_node != NULL; 6094 deleg_node = uu_avl_next(avl, deleg_node)) { 6095 if (local != deleg_node->dpn_perm.dp_local || 6096 descend != deleg_node->dpn_perm.dp_descend) 6097 continue; 6098 6099 if (prt_who) { 6100 const char *who = NULL; 6101 if (prt_title) { 6102 prt_title = B_FALSE; 6103 (void) printf("%s", title); 6104 } 6105 6106 switch (who_type) { 6107 case ZFS_DELEG_USER_SETS: 6108 case ZFS_DELEG_USER: 6109 who = gettext("user"); 6110 if (nice_who_name) 6111 who_name = nice_who_name; 6112 break; 6113 case ZFS_DELEG_GROUP_SETS: 6114 case ZFS_DELEG_GROUP: 6115 who = gettext("group"); 6116 if (nice_who_name) 6117 who_name = nice_who_name; 6118 break; 6119 case ZFS_DELEG_EVERYONE_SETS: 6120 case ZFS_DELEG_EVERYONE: 6121 who = gettext("everyone"); 6122 who_name = NULL; 6123 break; 6124 6125 default: 6126 assert(who != NULL); 6127 } 6128 6129 prt_who = B_FALSE; 6130 if (who_name == NULL) 6131 (void) printf("\t%s", who); 6132 else 6133 (void) printf("\t%s %s", who, who_name); 6134 } 6135 6136 (void) printf("%c%s", delim, 6137 deleg_node->dpn_perm.dp_name); 6138 delim = ','; 6139 } 6140 6141 if (!prt_who) 6142 (void) printf("\n"); 6143 } 6144 6145 uu_avl_walk_end(walk); 6146 } 6147 6148 static void 6149 print_fs_perms(fs_perm_set_t *fspset) 6150 { 6151 fs_perm_node_t *node = NULL; 6152 char buf[MAXNAMELEN + 32]; 6153 const char *dsname = buf; 6154 6155 for (node = uu_list_first(fspset->fsps_list); node != NULL; 6156 node = uu_list_next(fspset->fsps_list, node)) { 6157 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 6158 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 6159 int left = 0; 6160 6161 (void) snprintf(buf, sizeof (buf), 6162 gettext("---- Permissions on %s "), 6163 node->fspn_fsperm.fsp_name); 6164 (void) printf("%s", dsname); 6165 left = 70 - strlen(buf); 6166 while (left-- > 0) 6167 (void) printf("-"); 6168 (void) printf("\n"); 6169 6170 print_set_creat_perms(sc_avl); 6171 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 6172 gettext("Local permissions:\n")); 6173 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 6174 gettext("Descendent permissions:\n")); 6175 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 6176 gettext("Local+Descendent permissions:\n")); 6177 } 6178 } 6179 6180 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 6181 6182 struct deleg_perms { 6183 boolean_t un; 6184 nvlist_t *nvl; 6185 }; 6186 6187 static int 6188 set_deleg_perms(zfs_handle_t *zhp, void *data) 6189 { 6190 struct deleg_perms *perms = (struct deleg_perms *)data; 6191 zfs_type_t zfs_type = zfs_get_type(zhp); 6192 6193 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 6194 return (0); 6195 6196 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 6197 } 6198 6199 static int 6200 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 6201 { 6202 zfs_handle_t *zhp; 6203 nvlist_t *perm_nvl = NULL; 6204 nvlist_t *update_perm_nvl = NULL; 6205 int error = 1; 6206 int c; 6207 struct allow_opts opts = { 0 }; 6208 6209 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 6210 6211 /* check opts */ 6212 while ((c = getopt(argc, argv, optstr)) != -1) { 6213 switch (c) { 6214 case 'l': 6215 opts.local = B_TRUE; 6216 break; 6217 case 'd': 6218 opts.descend = B_TRUE; 6219 break; 6220 case 'u': 6221 opts.user = B_TRUE; 6222 break; 6223 case 'g': 6224 opts.group = B_TRUE; 6225 break; 6226 case 'e': 6227 opts.everyone = B_TRUE; 6228 break; 6229 case 's': 6230 opts.set = B_TRUE; 6231 break; 6232 case 'c': 6233 opts.create = B_TRUE; 6234 break; 6235 case 'r': 6236 opts.recursive = B_TRUE; 6237 break; 6238 case ':': 6239 (void) fprintf(stderr, gettext("missing argument for " 6240 "'%c' option\n"), optopt); 6241 usage(B_FALSE); 6242 break; 6243 case 'h': 6244 opts.prt_usage = B_TRUE; 6245 break; 6246 case '?': 6247 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6248 optopt); 6249 usage(B_FALSE); 6250 } 6251 } 6252 6253 argc -= optind; 6254 argv += optind; 6255 6256 /* check arguments */ 6257 parse_allow_args(argc, argv, un, &opts); 6258 6259 /* try to open the dataset */ 6260 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 6261 ZFS_TYPE_VOLUME)) == NULL) { 6262 (void) fprintf(stderr, "Failed to open dataset: %s\n", 6263 opts.dataset); 6264 return (-1); 6265 } 6266 6267 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 6268 goto cleanup2; 6269 6270 fs_perm_set_init(&fs_perm_set); 6271 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 6272 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 6273 goto cleanup1; 6274 } 6275 6276 if (opts.prt_perms) 6277 print_fs_perms(&fs_perm_set); 6278 else { 6279 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 6280 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 6281 goto cleanup0; 6282 6283 if (un && opts.recursive) { 6284 struct deleg_perms data = { un, update_perm_nvl }; 6285 if (zfs_iter_filesystems(zhp, set_deleg_perms, 6286 &data) != 0) 6287 goto cleanup0; 6288 } 6289 } 6290 6291 error = 0; 6292 6293 cleanup0: 6294 nvlist_free(perm_nvl); 6295 nvlist_free(update_perm_nvl); 6296 cleanup1: 6297 fs_perm_set_fini(&fs_perm_set); 6298 cleanup2: 6299 zfs_close(zhp); 6300 6301 return (error); 6302 } 6303 6304 static int 6305 zfs_do_allow(int argc, char **argv) 6306 { 6307 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 6308 } 6309 6310 static int 6311 zfs_do_unallow(int argc, char **argv) 6312 { 6313 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 6314 } 6315 6316 static int 6317 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 6318 { 6319 int errors = 0; 6320 int i; 6321 const char *tag; 6322 boolean_t recursive = B_FALSE; 6323 const char *opts = holding ? "rt" : "r"; 6324 int c; 6325 6326 /* check options */ 6327 while ((c = getopt(argc, argv, opts)) != -1) { 6328 switch (c) { 6329 case 'r': 6330 recursive = B_TRUE; 6331 break; 6332 case '?': 6333 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6334 optopt); 6335 usage(B_FALSE); 6336 } 6337 } 6338 6339 argc -= optind; 6340 argv += optind; 6341 6342 /* check number of arguments */ 6343 if (argc < 2) 6344 usage(B_FALSE); 6345 6346 tag = argv[0]; 6347 --argc; 6348 ++argv; 6349 6350 if (holding && tag[0] == '.') { 6351 /* tags starting with '.' are reserved for libzfs */ 6352 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 6353 usage(B_FALSE); 6354 } 6355 6356 for (i = 0; i < argc; ++i) { 6357 zfs_handle_t *zhp; 6358 char parent[ZFS_MAX_DATASET_NAME_LEN]; 6359 const char *delim; 6360 char *path = argv[i]; 6361 6362 delim = strchr(path, '@'); 6363 if (delim == NULL) { 6364 (void) fprintf(stderr, 6365 gettext("'%s' is not a snapshot\n"), path); 6366 ++errors; 6367 continue; 6368 } 6369 (void) strncpy(parent, path, delim - path); 6370 parent[delim - path] = '\0'; 6371 6372 zhp = zfs_open(g_zfs, parent, 6373 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 6374 if (zhp == NULL) { 6375 ++errors; 6376 continue; 6377 } 6378 if (holding) { 6379 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 6380 ++errors; 6381 } else { 6382 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 6383 ++errors; 6384 } 6385 zfs_close(zhp); 6386 } 6387 6388 return (errors != 0); 6389 } 6390 6391 /* 6392 * zfs hold [-r] [-t] <tag> <snap> ... 6393 * 6394 * -r Recursively hold 6395 * 6396 * Apply a user-hold with the given tag to the list of snapshots. 6397 */ 6398 static int 6399 zfs_do_hold(int argc, char **argv) 6400 { 6401 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 6402 } 6403 6404 /* 6405 * zfs release [-r] <tag> <snap> ... 6406 * 6407 * -r Recursively release 6408 * 6409 * Release a user-hold with the given tag from the list of snapshots. 6410 */ 6411 static int 6412 zfs_do_release(int argc, char **argv) 6413 { 6414 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 6415 } 6416 6417 typedef struct holds_cbdata { 6418 boolean_t cb_recursive; 6419 const char *cb_snapname; 6420 nvlist_t **cb_nvlp; 6421 size_t cb_max_namelen; 6422 size_t cb_max_taglen; 6423 } holds_cbdata_t; 6424 6425 #define STRFTIME_FMT_STR "%a %b %e %H:%M %Y" 6426 #define DATETIME_BUF_LEN (32) 6427 /* 6428 * 6429 */ 6430 static void 6431 print_holds(boolean_t scripted, int nwidth, int tagwidth, nvlist_t *nvl) 6432 { 6433 int i; 6434 nvpair_t *nvp = NULL; 6435 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 6436 const char *col; 6437 6438 if (!scripted) { 6439 for (i = 0; i < 3; i++) { 6440 col = gettext(hdr_cols[i]); 6441 if (i < 2) 6442 (void) printf("%-*s ", i ? tagwidth : nwidth, 6443 col); 6444 else 6445 (void) printf("%s\n", col); 6446 } 6447 } 6448 6449 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 6450 char *zname = nvpair_name(nvp); 6451 nvlist_t *nvl2; 6452 nvpair_t *nvp2 = NULL; 6453 (void) nvpair_value_nvlist(nvp, &nvl2); 6454 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 6455 char tsbuf[DATETIME_BUF_LEN]; 6456 char *tagname = nvpair_name(nvp2); 6457 uint64_t val = 0; 6458 time_t time; 6459 struct tm t; 6460 6461 (void) nvpair_value_uint64(nvp2, &val); 6462 time = (time_t)val; 6463 (void) localtime_r(&time, &t); 6464 (void) strftime(tsbuf, DATETIME_BUF_LEN, 6465 gettext(STRFTIME_FMT_STR), &t); 6466 6467 if (scripted) { 6468 (void) printf("%s\t%s\t%s\n", zname, 6469 tagname, tsbuf); 6470 } else { 6471 (void) printf("%-*s %-*s %s\n", nwidth, 6472 zname, tagwidth, tagname, tsbuf); 6473 } 6474 } 6475 } 6476 } 6477 6478 /* 6479 * Generic callback function to list a dataset or snapshot. 6480 */ 6481 static int 6482 holds_callback(zfs_handle_t *zhp, void *data) 6483 { 6484 holds_cbdata_t *cbp = data; 6485 nvlist_t *top_nvl = *cbp->cb_nvlp; 6486 nvlist_t *nvl = NULL; 6487 nvpair_t *nvp = NULL; 6488 const char *zname = zfs_get_name(zhp); 6489 size_t znamelen = strlen(zname); 6490 6491 if (cbp->cb_recursive) { 6492 const char *snapname; 6493 char *delim = strchr(zname, '@'); 6494 if (delim == NULL) 6495 return (0); 6496 6497 snapname = delim + 1; 6498 if (strcmp(cbp->cb_snapname, snapname)) 6499 return (0); 6500 } 6501 6502 if (zfs_get_holds(zhp, &nvl) != 0) 6503 return (-1); 6504 6505 if (znamelen > cbp->cb_max_namelen) 6506 cbp->cb_max_namelen = znamelen; 6507 6508 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 6509 const char *tag = nvpair_name(nvp); 6510 size_t taglen = strlen(tag); 6511 if (taglen > cbp->cb_max_taglen) 6512 cbp->cb_max_taglen = taglen; 6513 } 6514 6515 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 6516 } 6517 6518 /* 6519 * zfs holds [-rH] <snap> ... 6520 * 6521 * -r Lists holds that are set on the named snapshots recursively. 6522 * -H Scripted mode; elide headers and separate columns by tabs. 6523 */ 6524 static int 6525 zfs_do_holds(int argc, char **argv) 6526 { 6527 int errors = 0; 6528 int c; 6529 int i; 6530 boolean_t scripted = B_FALSE; 6531 boolean_t recursive = B_FALSE; 6532 const char *opts = "rH"; 6533 nvlist_t *nvl; 6534 6535 int types = ZFS_TYPE_SNAPSHOT; 6536 holds_cbdata_t cb = { 0 }; 6537 6538 int limit = 0; 6539 int ret = 0; 6540 int flags = 0; 6541 6542 /* check options */ 6543 while ((c = getopt(argc, argv, opts)) != -1) { 6544 switch (c) { 6545 case 'r': 6546 recursive = B_TRUE; 6547 break; 6548 case 'H': 6549 scripted = B_TRUE; 6550 break; 6551 case '?': 6552 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6553 optopt); 6554 usage(B_FALSE); 6555 } 6556 } 6557 6558 if (recursive) { 6559 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 6560 flags |= ZFS_ITER_RECURSE; 6561 } 6562 6563 argc -= optind; 6564 argv += optind; 6565 6566 /* check number of arguments */ 6567 if (argc < 1) 6568 usage(B_FALSE); 6569 6570 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 6571 nomem(); 6572 6573 for (i = 0; i < argc; ++i) { 6574 char *snapshot = argv[i]; 6575 const char *delim; 6576 const char *snapname; 6577 6578 delim = strchr(snapshot, '@'); 6579 if (delim == NULL) { 6580 (void) fprintf(stderr, 6581 gettext("'%s' is not a snapshot\n"), snapshot); 6582 ++errors; 6583 continue; 6584 } 6585 snapname = delim + 1; 6586 if (recursive) 6587 snapshot[delim - snapshot] = '\0'; 6588 6589 cb.cb_recursive = recursive; 6590 cb.cb_snapname = snapname; 6591 cb.cb_nvlp = &nvl; 6592 6593 /* 6594 * 1. collect holds data, set format options 6595 */ 6596 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 6597 holds_callback, &cb); 6598 if (ret != 0) 6599 ++errors; 6600 } 6601 6602 /* 6603 * 2. print holds data 6604 */ 6605 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 6606 6607 if (nvlist_empty(nvl)) 6608 (void) fprintf(stderr, gettext("no datasets available\n")); 6609 6610 nvlist_free(nvl); 6611 6612 return (0 != errors); 6613 } 6614 6615 #define CHECK_SPINNER 30 6616 #define SPINNER_TIME 3 /* seconds */ 6617 #define MOUNT_TIME 1 /* seconds */ 6618 6619 typedef struct get_all_state { 6620 boolean_t ga_verbose; 6621 get_all_cb_t *ga_cbp; 6622 } get_all_state_t; 6623 6624 static int 6625 get_one_dataset(zfs_handle_t *zhp, void *data) 6626 { 6627 static char *spin[] = { "-", "\\", "|", "/" }; 6628 static int spinval = 0; 6629 static int spincheck = 0; 6630 static time_t last_spin_time = (time_t)0; 6631 get_all_state_t *state = data; 6632 zfs_type_t type = zfs_get_type(zhp); 6633 6634 if (state->ga_verbose) { 6635 if (--spincheck < 0) { 6636 time_t now = time(NULL); 6637 if (last_spin_time + SPINNER_TIME < now) { 6638 update_progress(spin[spinval++ % 4]); 6639 last_spin_time = now; 6640 } 6641 spincheck = CHECK_SPINNER; 6642 } 6643 } 6644 6645 /* 6646 * Iterate over any nested datasets. 6647 */ 6648 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 6649 zfs_close(zhp); 6650 return (1); 6651 } 6652 6653 /* 6654 * Skip any datasets whose type does not match. 6655 */ 6656 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 6657 zfs_close(zhp); 6658 return (0); 6659 } 6660 libzfs_add_handle(state->ga_cbp, zhp); 6661 assert(state->ga_cbp->cb_used <= state->ga_cbp->cb_alloc); 6662 6663 return (0); 6664 } 6665 6666 static void 6667 get_all_datasets(get_all_cb_t *cbp, boolean_t verbose) 6668 { 6669 get_all_state_t state = { 6670 .ga_verbose = verbose, 6671 .ga_cbp = cbp 6672 }; 6673 6674 if (verbose) 6675 set_progress_header(gettext("Reading ZFS config")); 6676 (void) zfs_iter_root(g_zfs, get_one_dataset, &state); 6677 6678 if (verbose) 6679 finish_progress(gettext("done.")); 6680 } 6681 6682 /* 6683 * Generic callback for sharing or mounting filesystems. Because the code is so 6684 * similar, we have a common function with an extra parameter to determine which 6685 * mode we are using. 6686 */ 6687 typedef enum { OP_SHARE, OP_MOUNT } share_mount_op_t; 6688 6689 typedef struct share_mount_state { 6690 share_mount_op_t sm_op; 6691 boolean_t sm_verbose; 6692 int sm_flags; 6693 char *sm_options; 6694 char *sm_proto; /* only valid for OP_SHARE */ 6695 pthread_mutex_t sm_lock; /* protects the remaining fields */ 6696 uint_t sm_total; /* number of filesystems to process */ 6697 uint_t sm_done; /* number of filesystems processed */ 6698 int sm_status; /* -1 if any of the share/mount operations failed */ 6699 } share_mount_state_t; 6700 6701 /* 6702 * Share or mount a dataset. 6703 */ 6704 static int 6705 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 6706 boolean_t explicit, const char *options) 6707 { 6708 char mountpoint[ZFS_MAXPROPLEN]; 6709 char shareopts[ZFS_MAXPROPLEN]; 6710 char smbshareopts[ZFS_MAXPROPLEN]; 6711 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 6712 struct mnttab mnt; 6713 uint64_t zoned, canmount; 6714 boolean_t shared_nfs, shared_smb; 6715 6716 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 6717 6718 /* 6719 * Check to make sure we can mount/share this dataset. If we 6720 * are in the global zone and the filesystem is exported to a 6721 * local zone, or if we are in a local zone and the 6722 * filesystem is not exported, then it is an error. 6723 */ 6724 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 6725 6726 if (zoned && getzoneid() == GLOBAL_ZONEID) { 6727 if (!explicit) 6728 return (0); 6729 6730 (void) fprintf(stderr, gettext("cannot %s '%s': " 6731 "dataset is exported to a local zone\n"), cmdname, 6732 zfs_get_name(zhp)); 6733 return (1); 6734 6735 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 6736 if (!explicit) 6737 return (0); 6738 6739 (void) fprintf(stderr, gettext("cannot %s '%s': " 6740 "permission denied\n"), cmdname, 6741 zfs_get_name(zhp)); 6742 return (1); 6743 } 6744 6745 /* 6746 * Ignore any filesystems which don't apply to us. This 6747 * includes those with a legacy mountpoint, or those with 6748 * legacy share options. 6749 */ 6750 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6751 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 6752 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 6753 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 6754 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 6755 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 6756 6757 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 6758 strcmp(smbshareopts, "off") == 0) { 6759 if (!explicit) 6760 return (0); 6761 6762 (void) fprintf(stderr, gettext("cannot share '%s': " 6763 "legacy share\n"), zfs_get_name(zhp)); 6764 (void) fprintf(stderr, gettext("use exports(5) or " 6765 "smb.conf(5) to share this filesystem, or set " 6766 "the sharenfs or sharesmb property\n")); 6767 return (1); 6768 } 6769 6770 /* 6771 * We cannot share or mount legacy filesystems. If the 6772 * shareopts is non-legacy but the mountpoint is legacy, we 6773 * treat it as a legacy share. 6774 */ 6775 if (strcmp(mountpoint, "legacy") == 0) { 6776 if (!explicit) 6777 return (0); 6778 6779 (void) fprintf(stderr, gettext("cannot %s '%s': " 6780 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 6781 (void) fprintf(stderr, gettext("use %s(8) to " 6782 "%s this filesystem\n"), cmdname, cmdname); 6783 return (1); 6784 } 6785 6786 if (strcmp(mountpoint, "none") == 0) { 6787 if (!explicit) 6788 return (0); 6789 6790 (void) fprintf(stderr, gettext("cannot %s '%s': no " 6791 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 6792 return (1); 6793 } 6794 6795 /* 6796 * canmount explicit outcome 6797 * on no pass through 6798 * on yes pass through 6799 * off no return 0 6800 * off yes display error, return 1 6801 * noauto no return 0 6802 * noauto yes pass through 6803 */ 6804 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 6805 if (canmount == ZFS_CANMOUNT_OFF) { 6806 if (!explicit) 6807 return (0); 6808 6809 (void) fprintf(stderr, gettext("cannot %s '%s': " 6810 "'canmount' property is set to 'off'\n"), cmdname, 6811 zfs_get_name(zhp)); 6812 return (1); 6813 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 6814 /* 6815 * When performing a 'zfs mount -a', we skip any mounts for 6816 * datasets that have 'noauto' set. Sharing a dataset with 6817 * 'noauto' set is only allowed if it's mounted. 6818 */ 6819 if (op == OP_MOUNT) 6820 return (0); 6821 if (op == OP_SHARE && !zfs_is_mounted(zhp, NULL)) { 6822 /* also purge it from existing exports */ 6823 zfs_unshareall_bypath(zhp, mountpoint); 6824 return (0); 6825 } 6826 } 6827 6828 /* 6829 * If this filesystem is encrypted and does not have 6830 * a loaded key, we can not mount it. 6831 */ 6832 if ((flags & MS_CRYPT) == 0 && 6833 zfs_prop_get_int(zhp, ZFS_PROP_ENCRYPTION) != ZIO_CRYPT_OFF && 6834 zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS) == 6835 ZFS_KEYSTATUS_UNAVAILABLE) { 6836 if (!explicit) 6837 return (0); 6838 6839 (void) fprintf(stderr, gettext("cannot %s '%s': " 6840 "encryption key not loaded\n"), cmdname, zfs_get_name(zhp)); 6841 return (1); 6842 } 6843 6844 /* 6845 * If this filesystem is inconsistent and has a receive resume 6846 * token, we can not mount it. 6847 */ 6848 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 6849 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 6850 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 6851 if (!explicit) 6852 return (0); 6853 6854 (void) fprintf(stderr, gettext("cannot %s '%s': " 6855 "Contains partially-completed state from " 6856 "\"zfs receive -s\", which can be resumed with " 6857 "\"zfs send -t\"\n"), 6858 cmdname, zfs_get_name(zhp)); 6859 return (1); 6860 } 6861 6862 if (zfs_prop_get_int(zhp, ZFS_PROP_REDACTED) && !(flags & MS_FORCE)) { 6863 if (!explicit) 6864 return (0); 6865 6866 (void) fprintf(stderr, gettext("cannot %s '%s': " 6867 "Dataset is not complete, was created by receiving " 6868 "a redacted zfs send stream.\n"), cmdname, 6869 zfs_get_name(zhp)); 6870 return (1); 6871 } 6872 6873 /* 6874 * At this point, we have verified that the mountpoint and/or 6875 * shareopts are appropriate for auto management. If the 6876 * filesystem is already mounted or shared, return (failing 6877 * for explicit requests); otherwise mount or share the 6878 * filesystem. 6879 */ 6880 switch (op) { 6881 case OP_SHARE: 6882 6883 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 6884 shared_smb = zfs_is_shared_smb(zhp, NULL); 6885 6886 if ((shared_nfs && shared_smb) || 6887 (shared_nfs && strcmp(shareopts, "on") == 0 && 6888 strcmp(smbshareopts, "off") == 0) || 6889 (shared_smb && strcmp(smbshareopts, "on") == 0 && 6890 strcmp(shareopts, "off") == 0)) { 6891 if (!explicit) 6892 return (0); 6893 6894 (void) fprintf(stderr, gettext("cannot share " 6895 "'%s': filesystem already shared\n"), 6896 zfs_get_name(zhp)); 6897 return (1); 6898 } 6899 6900 if (!zfs_is_mounted(zhp, NULL) && 6901 zfs_mount(zhp, NULL, flags) != 0) 6902 return (1); 6903 6904 if (protocol == NULL) { 6905 if (zfs_shareall(zhp) != 0) 6906 return (1); 6907 } else if (strcmp(protocol, "nfs") == 0) { 6908 if (zfs_share_nfs(zhp)) 6909 return (1); 6910 } else if (strcmp(protocol, "smb") == 0) { 6911 if (zfs_share_smb(zhp)) 6912 return (1); 6913 } else { 6914 (void) fprintf(stderr, gettext("cannot share " 6915 "'%s': invalid share type '%s' " 6916 "specified\n"), 6917 zfs_get_name(zhp), protocol); 6918 return (1); 6919 } 6920 6921 break; 6922 6923 case OP_MOUNT: 6924 if (options == NULL) 6925 mnt.mnt_mntopts = ""; 6926 else 6927 mnt.mnt_mntopts = (char *)options; 6928 6929 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 6930 zfs_is_mounted(zhp, NULL)) { 6931 if (!explicit) 6932 return (0); 6933 6934 (void) fprintf(stderr, gettext("cannot mount " 6935 "'%s': filesystem already mounted\n"), 6936 zfs_get_name(zhp)); 6937 return (1); 6938 } 6939 6940 if (zfs_mount(zhp, options, flags) != 0) 6941 return (1); 6942 break; 6943 } 6944 6945 return (0); 6946 } 6947 6948 /* 6949 * Reports progress in the form "(current/total)". Not thread-safe. 6950 */ 6951 static void 6952 report_mount_progress(int current, int total) 6953 { 6954 static time_t last_progress_time = 0; 6955 time_t now = time(NULL); 6956 char info[32]; 6957 6958 /* display header if we're here for the first time */ 6959 if (current == 1) { 6960 set_progress_header(gettext("Mounting ZFS filesystems")); 6961 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 6962 /* too soon to report again */ 6963 return; 6964 } 6965 6966 last_progress_time = now; 6967 6968 (void) sprintf(info, "(%d/%d)", current, total); 6969 6970 if (current == total) 6971 finish_progress(info); 6972 else 6973 update_progress(info); 6974 } 6975 6976 /* 6977 * zfs_foreach_mountpoint() callback that mounts or shares one filesystem and 6978 * updates the progress meter. 6979 */ 6980 static int 6981 share_mount_one_cb(zfs_handle_t *zhp, void *arg) 6982 { 6983 share_mount_state_t *sms = arg; 6984 int ret; 6985 6986 ret = share_mount_one(zhp, sms->sm_op, sms->sm_flags, sms->sm_proto, 6987 B_FALSE, sms->sm_options); 6988 6989 pthread_mutex_lock(&sms->sm_lock); 6990 if (ret != 0) 6991 sms->sm_status = ret; 6992 sms->sm_done++; 6993 if (sms->sm_verbose) 6994 report_mount_progress(sms->sm_done, sms->sm_total); 6995 pthread_mutex_unlock(&sms->sm_lock); 6996 return (ret); 6997 } 6998 6999 static void 7000 append_options(char *mntopts, char *newopts) 7001 { 7002 int len = strlen(mntopts); 7003 7004 /* original length plus new string to append plus 1 for the comma */ 7005 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 7006 (void) fprintf(stderr, gettext("the opts argument for " 7007 "'%s' option is too long (more than %d chars)\n"), 7008 "-o", MNT_LINE_MAX); 7009 usage(B_FALSE); 7010 } 7011 7012 if (*mntopts) 7013 mntopts[len++] = ','; 7014 7015 (void) strcpy(&mntopts[len], newopts); 7016 } 7017 7018 static int 7019 share_mount(int op, int argc, char **argv) 7020 { 7021 int do_all = 0; 7022 boolean_t verbose = B_FALSE; 7023 int c, ret = 0; 7024 char *options = NULL; 7025 int flags = 0; 7026 7027 /* check options */ 7028 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":alvo:Of" : "al")) 7029 != -1) { 7030 switch (c) { 7031 case 'a': 7032 do_all = 1; 7033 break; 7034 case 'v': 7035 verbose = B_TRUE; 7036 break; 7037 case 'l': 7038 flags |= MS_CRYPT; 7039 break; 7040 case 'o': 7041 if (*optarg == '\0') { 7042 (void) fprintf(stderr, gettext("empty mount " 7043 "options (-o) specified\n")); 7044 usage(B_FALSE); 7045 } 7046 7047 if (options == NULL) 7048 options = safe_malloc(MNT_LINE_MAX + 1); 7049 7050 /* option validation is done later */ 7051 append_options(options, optarg); 7052 break; 7053 case 'O': 7054 flags |= MS_OVERLAY; 7055 break; 7056 case 'f': 7057 flags |= MS_FORCE; 7058 break; 7059 case ':': 7060 (void) fprintf(stderr, gettext("missing argument for " 7061 "'%c' option\n"), optopt); 7062 usage(B_FALSE); 7063 break; 7064 case '?': 7065 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7066 optopt); 7067 usage(B_FALSE); 7068 } 7069 } 7070 7071 argc -= optind; 7072 argv += optind; 7073 7074 /* check number of arguments */ 7075 if (do_all) { 7076 char *protocol = NULL; 7077 7078 if (op == OP_SHARE && argc > 0) { 7079 if (strcmp(argv[0], "nfs") != 0 && 7080 strcmp(argv[0], "smb") != 0) { 7081 (void) fprintf(stderr, gettext("share type " 7082 "must be 'nfs' or 'smb'\n")); 7083 usage(B_FALSE); 7084 } 7085 protocol = argv[0]; 7086 argc--; 7087 argv++; 7088 } 7089 7090 if (argc != 0) { 7091 (void) fprintf(stderr, gettext("too many arguments\n")); 7092 usage(B_FALSE); 7093 } 7094 7095 start_progress_timer(); 7096 get_all_cb_t cb = { 0 }; 7097 get_all_datasets(&cb, verbose); 7098 7099 if (cb.cb_used == 0) { 7100 free(options); 7101 return (0); 7102 } 7103 7104 share_mount_state_t share_mount_state = { 0 }; 7105 share_mount_state.sm_op = op; 7106 share_mount_state.sm_verbose = verbose; 7107 share_mount_state.sm_flags = flags; 7108 share_mount_state.sm_options = options; 7109 share_mount_state.sm_proto = protocol; 7110 share_mount_state.sm_total = cb.cb_used; 7111 pthread_mutex_init(&share_mount_state.sm_lock, NULL); 7112 7113 /* 7114 * libshare isn't mt-safe, so only do the operation in parallel 7115 * if we're mounting. Additionally, the key-loading option must 7116 * be serialized so that we can prompt the user for their keys 7117 * in a consistent manner. 7118 */ 7119 zfs_foreach_mountpoint(g_zfs, cb.cb_handles, cb.cb_used, 7120 share_mount_one_cb, &share_mount_state, 7121 op == OP_MOUNT && !(flags & MS_CRYPT)); 7122 zfs_commit_all_shares(); 7123 7124 ret = share_mount_state.sm_status; 7125 7126 for (int i = 0; i < cb.cb_used; i++) 7127 zfs_close(cb.cb_handles[i]); 7128 free(cb.cb_handles); 7129 } else if (argc == 0) { 7130 FILE *mnttab; 7131 struct mnttab entry; 7132 7133 if ((op == OP_SHARE) || (options != NULL)) { 7134 (void) fprintf(stderr, gettext("missing filesystem " 7135 "argument (specify -a for all)\n")); 7136 usage(B_FALSE); 7137 } 7138 7139 /* 7140 * When mount is given no arguments, go through 7141 * /proc/self/mounts and display any active ZFS mounts. 7142 * We hide any snapshots, since they are controlled 7143 * automatically. 7144 */ 7145 7146 if ((mnttab = fopen(MNTTAB, "re")) == NULL) { 7147 free(options); 7148 return (ENOENT); 7149 } 7150 7151 while (getmntent(mnttab, &entry) == 0) { 7152 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 7153 strchr(entry.mnt_special, '@') != NULL) 7154 continue; 7155 7156 (void) printf("%-30s %s\n", entry.mnt_special, 7157 entry.mnt_mountp); 7158 } 7159 7160 (void) fclose(mnttab); 7161 } else { 7162 zfs_handle_t *zhp; 7163 7164 if (argc > 1) { 7165 (void) fprintf(stderr, 7166 gettext("too many arguments\n")); 7167 usage(B_FALSE); 7168 } 7169 7170 if ((zhp = zfs_open(g_zfs, argv[0], 7171 ZFS_TYPE_FILESYSTEM)) == NULL) { 7172 ret = 1; 7173 } else { 7174 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 7175 options); 7176 zfs_commit_all_shares(); 7177 zfs_close(zhp); 7178 } 7179 } 7180 7181 free(options); 7182 return (ret); 7183 } 7184 7185 /* 7186 * zfs mount -a [nfs] 7187 * zfs mount filesystem 7188 * 7189 * Mount all filesystems, or mount the given filesystem. 7190 */ 7191 static int 7192 zfs_do_mount(int argc, char **argv) 7193 { 7194 return (share_mount(OP_MOUNT, argc, argv)); 7195 } 7196 7197 /* 7198 * zfs share -a [nfs | smb] 7199 * zfs share filesystem 7200 * 7201 * Share all filesystems, or share the given filesystem. 7202 */ 7203 static int 7204 zfs_do_share(int argc, char **argv) 7205 { 7206 return (share_mount(OP_SHARE, argc, argv)); 7207 } 7208 7209 typedef struct unshare_unmount_node { 7210 zfs_handle_t *un_zhp; 7211 char *un_mountp; 7212 uu_avl_node_t un_avlnode; 7213 } unshare_unmount_node_t; 7214 7215 /* ARGSUSED */ 7216 static int 7217 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 7218 { 7219 const unshare_unmount_node_t *l = larg; 7220 const unshare_unmount_node_t *r = rarg; 7221 7222 return (strcmp(l->un_mountp, r->un_mountp)); 7223 } 7224 7225 /* 7226 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 7227 * absolute path, find the entry /proc/self/mounts, verify that it's a 7228 * ZFS filesystem, and unmount it appropriately. 7229 */ 7230 static int 7231 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 7232 { 7233 zfs_handle_t *zhp; 7234 int ret = 0; 7235 struct stat64 statbuf; 7236 struct extmnttab entry; 7237 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 7238 ino_t path_inode; 7239 7240 /* 7241 * Search for the given (major,minor) pair in the mount table. 7242 */ 7243 7244 if (getextmntent(path, &entry, &statbuf) != 0) { 7245 if (op == OP_SHARE) { 7246 (void) fprintf(stderr, gettext("cannot %s '%s': not " 7247 "currently mounted\n"), cmdname, path); 7248 return (1); 7249 } 7250 (void) fprintf(stderr, gettext("warning: %s not in" 7251 "/proc/self/mounts\n"), path); 7252 if ((ret = umount2(path, flags)) != 0) 7253 (void) fprintf(stderr, gettext("%s: %s\n"), path, 7254 strerror(errno)); 7255 return (ret != 0); 7256 } 7257 path_inode = statbuf.st_ino; 7258 7259 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 7260 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 7261 "filesystem\n"), cmdname, path); 7262 return (1); 7263 } 7264 7265 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 7266 ZFS_TYPE_FILESYSTEM)) == NULL) 7267 return (1); 7268 7269 ret = 1; 7270 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 7271 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 7272 cmdname, path, strerror(errno)); 7273 goto out; 7274 } else if (statbuf.st_ino != path_inode) { 7275 (void) fprintf(stderr, gettext("cannot " 7276 "%s '%s': not a mountpoint\n"), cmdname, path); 7277 goto out; 7278 } 7279 7280 if (op == OP_SHARE) { 7281 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 7282 char smbshare_prop[ZFS_MAXPROPLEN]; 7283 7284 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 7285 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 7286 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 7287 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 7288 7289 if (strcmp(nfs_mnt_prop, "off") == 0 && 7290 strcmp(smbshare_prop, "off") == 0) { 7291 (void) fprintf(stderr, gettext("cannot unshare " 7292 "'%s': legacy share\n"), path); 7293 (void) fprintf(stderr, gettext("use exportfs(8) " 7294 "or smbcontrol(1) to unshare this filesystem\n")); 7295 } else if (!zfs_is_shared(zhp)) { 7296 (void) fprintf(stderr, gettext("cannot unshare '%s': " 7297 "not currently shared\n"), path); 7298 } else { 7299 ret = zfs_unshareall_bypath(zhp, path); 7300 zfs_commit_all_shares(); 7301 } 7302 } else { 7303 char mtpt_prop[ZFS_MAXPROPLEN]; 7304 7305 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 7306 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 7307 7308 if (is_manual) { 7309 ret = zfs_unmount(zhp, NULL, flags); 7310 } else if (strcmp(mtpt_prop, "legacy") == 0) { 7311 (void) fprintf(stderr, gettext("cannot unmount " 7312 "'%s': legacy mountpoint\n"), 7313 zfs_get_name(zhp)); 7314 (void) fprintf(stderr, gettext("use umount(8) " 7315 "to unmount this filesystem\n")); 7316 } else { 7317 ret = zfs_unmountall(zhp, flags); 7318 } 7319 } 7320 7321 out: 7322 zfs_close(zhp); 7323 7324 return (ret != 0); 7325 } 7326 7327 /* 7328 * Generic callback for unsharing or unmounting a filesystem. 7329 */ 7330 static int 7331 unshare_unmount(int op, int argc, char **argv) 7332 { 7333 int do_all = 0; 7334 int flags = 0; 7335 int ret = 0; 7336 int c; 7337 zfs_handle_t *zhp; 7338 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 7339 char sharesmb[ZFS_MAXPROPLEN]; 7340 7341 /* check options */ 7342 while ((c = getopt(argc, argv, op == OP_SHARE ? ":a" : "afu")) != -1) { 7343 switch (c) { 7344 case 'a': 7345 do_all = 1; 7346 break; 7347 case 'f': 7348 flags |= MS_FORCE; 7349 break; 7350 case 'u': 7351 flags |= MS_CRYPT; 7352 break; 7353 case ':': 7354 (void) fprintf(stderr, gettext("missing argument for " 7355 "'%c' option\n"), optopt); 7356 usage(B_FALSE); 7357 break; 7358 case '?': 7359 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7360 optopt); 7361 usage(B_FALSE); 7362 } 7363 } 7364 7365 argc -= optind; 7366 argv += optind; 7367 7368 if (do_all) { 7369 /* 7370 * We could make use of zfs_for_each() to walk all datasets in 7371 * the system, but this would be very inefficient, especially 7372 * since we would have to linearly search /proc/self/mounts for 7373 * each one. Instead, do one pass through /proc/self/mounts 7374 * looking for zfs entries and call zfs_unmount() for each one. 7375 * 7376 * Things get a little tricky if the administrator has created 7377 * mountpoints beneath other ZFS filesystems. In this case, we 7378 * have to unmount the deepest filesystems first. To accomplish 7379 * this, we place all the mountpoints in an AVL tree sorted by 7380 * the special type (dataset name), and walk the result in 7381 * reverse to make sure to get any snapshots first. 7382 */ 7383 FILE *mnttab; 7384 struct mnttab entry; 7385 uu_avl_pool_t *pool; 7386 uu_avl_t *tree = NULL; 7387 unshare_unmount_node_t *node; 7388 uu_avl_index_t idx; 7389 uu_avl_walk_t *walk; 7390 char *protocol = NULL; 7391 7392 if (op == OP_SHARE && argc > 0) { 7393 if (strcmp(argv[0], "nfs") != 0 && 7394 strcmp(argv[0], "smb") != 0) { 7395 (void) fprintf(stderr, gettext("share type " 7396 "must be 'nfs' or 'smb'\n")); 7397 usage(B_FALSE); 7398 } 7399 protocol = argv[0]; 7400 argc--; 7401 argv++; 7402 } 7403 7404 if (argc != 0) { 7405 (void) fprintf(stderr, gettext("too many arguments\n")); 7406 usage(B_FALSE); 7407 } 7408 7409 if (((pool = uu_avl_pool_create("unmount_pool", 7410 sizeof (unshare_unmount_node_t), 7411 offsetof(unshare_unmount_node_t, un_avlnode), 7412 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 7413 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 7414 nomem(); 7415 7416 if ((mnttab = fopen(MNTTAB, "re")) == NULL) 7417 return (ENOENT); 7418 7419 while (getmntent(mnttab, &entry) == 0) { 7420 7421 /* ignore non-ZFS entries */ 7422 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 7423 continue; 7424 7425 /* ignore snapshots */ 7426 if (strchr(entry.mnt_special, '@') != NULL) 7427 continue; 7428 7429 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 7430 ZFS_TYPE_FILESYSTEM)) == NULL) { 7431 ret = 1; 7432 continue; 7433 } 7434 7435 /* 7436 * Ignore datasets that are excluded/restricted by 7437 * parent pool name. 7438 */ 7439 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 7440 zfs_close(zhp); 7441 continue; 7442 } 7443 7444 switch (op) { 7445 case OP_SHARE: 7446 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 7447 nfs_mnt_prop, 7448 sizeof (nfs_mnt_prop), 7449 NULL, NULL, 0, B_FALSE) == 0); 7450 if (strcmp(nfs_mnt_prop, "off") != 0) 7451 break; 7452 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 7453 nfs_mnt_prop, 7454 sizeof (nfs_mnt_prop), 7455 NULL, NULL, 0, B_FALSE) == 0); 7456 if (strcmp(nfs_mnt_prop, "off") == 0) 7457 continue; 7458 break; 7459 case OP_MOUNT: 7460 /* Ignore legacy mounts */ 7461 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 7462 nfs_mnt_prop, 7463 sizeof (nfs_mnt_prop), 7464 NULL, NULL, 0, B_FALSE) == 0); 7465 if (strcmp(nfs_mnt_prop, "legacy") == 0) 7466 continue; 7467 /* Ignore canmount=noauto mounts */ 7468 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 7469 ZFS_CANMOUNT_NOAUTO) 7470 continue; 7471 default: 7472 break; 7473 } 7474 7475 node = safe_malloc(sizeof (unshare_unmount_node_t)); 7476 node->un_zhp = zhp; 7477 node->un_mountp = safe_strdup(entry.mnt_mountp); 7478 7479 uu_avl_node_init(node, &node->un_avlnode, pool); 7480 7481 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 7482 uu_avl_insert(tree, node, idx); 7483 } else { 7484 zfs_close(node->un_zhp); 7485 free(node->un_mountp); 7486 free(node); 7487 } 7488 } 7489 (void) fclose(mnttab); 7490 7491 /* 7492 * Walk the AVL tree in reverse, unmounting each filesystem and 7493 * removing it from the AVL tree in the process. 7494 */ 7495 if ((walk = uu_avl_walk_start(tree, 7496 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 7497 nomem(); 7498 7499 while ((node = uu_avl_walk_next(walk)) != NULL) { 7500 const char *mntarg = NULL; 7501 7502 uu_avl_remove(tree, node); 7503 switch (op) { 7504 case OP_SHARE: 7505 if (zfs_unshareall_bytype(node->un_zhp, 7506 node->un_mountp, protocol) != 0) 7507 ret = 1; 7508 break; 7509 7510 case OP_MOUNT: 7511 if (zfs_unmount(node->un_zhp, 7512 mntarg, flags) != 0) 7513 ret = 1; 7514 break; 7515 } 7516 7517 zfs_close(node->un_zhp); 7518 free(node->un_mountp); 7519 free(node); 7520 } 7521 7522 if (op == OP_SHARE) 7523 zfs_commit_shares(protocol); 7524 7525 uu_avl_walk_end(walk); 7526 uu_avl_destroy(tree); 7527 uu_avl_pool_destroy(pool); 7528 7529 } else { 7530 if (argc != 1) { 7531 if (argc == 0) 7532 (void) fprintf(stderr, 7533 gettext("missing filesystem argument\n")); 7534 else 7535 (void) fprintf(stderr, 7536 gettext("too many arguments\n")); 7537 usage(B_FALSE); 7538 } 7539 7540 /* 7541 * We have an argument, but it may be a full path or a ZFS 7542 * filesystem. Pass full paths off to unmount_path() (shared by 7543 * manual_unmount), otherwise open the filesystem and pass to 7544 * zfs_unmount(). 7545 */ 7546 if (argv[0][0] == '/') 7547 return (unshare_unmount_path(op, argv[0], 7548 flags, B_FALSE)); 7549 7550 if ((zhp = zfs_open(g_zfs, argv[0], 7551 ZFS_TYPE_FILESYSTEM)) == NULL) 7552 return (1); 7553 7554 verify(zfs_prop_get(zhp, op == OP_SHARE ? 7555 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 7556 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 7557 NULL, 0, B_FALSE) == 0); 7558 7559 switch (op) { 7560 case OP_SHARE: 7561 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 7562 nfs_mnt_prop, 7563 sizeof (nfs_mnt_prop), 7564 NULL, NULL, 0, B_FALSE) == 0); 7565 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 7566 sharesmb, sizeof (sharesmb), NULL, NULL, 7567 0, B_FALSE) == 0); 7568 7569 if (strcmp(nfs_mnt_prop, "off") == 0 && 7570 strcmp(sharesmb, "off") == 0) { 7571 (void) fprintf(stderr, gettext("cannot " 7572 "unshare '%s': legacy share\n"), 7573 zfs_get_name(zhp)); 7574 (void) fprintf(stderr, gettext("use " 7575 "exports(5) or smb.conf(5) to unshare " 7576 "this filesystem\n")); 7577 ret = 1; 7578 } else if (!zfs_is_shared(zhp)) { 7579 (void) fprintf(stderr, gettext("cannot " 7580 "unshare '%s': not currently " 7581 "shared\n"), zfs_get_name(zhp)); 7582 ret = 1; 7583 } else if (zfs_unshareall(zhp) != 0) { 7584 ret = 1; 7585 } 7586 break; 7587 7588 case OP_MOUNT: 7589 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 7590 (void) fprintf(stderr, gettext("cannot " 7591 "unmount '%s': legacy " 7592 "mountpoint\n"), zfs_get_name(zhp)); 7593 (void) fprintf(stderr, gettext("use " 7594 "umount(8) to unmount this " 7595 "filesystem\n")); 7596 ret = 1; 7597 } else if (!zfs_is_mounted(zhp, NULL)) { 7598 (void) fprintf(stderr, gettext("cannot " 7599 "unmount '%s': not currently " 7600 "mounted\n"), 7601 zfs_get_name(zhp)); 7602 ret = 1; 7603 } else if (zfs_unmountall(zhp, flags) != 0) { 7604 ret = 1; 7605 } 7606 break; 7607 } 7608 7609 zfs_close(zhp); 7610 } 7611 7612 return (ret); 7613 } 7614 7615 /* 7616 * zfs unmount [-fu] -a 7617 * zfs unmount [-fu] filesystem 7618 * 7619 * Unmount all filesystems, or a specific ZFS filesystem. 7620 */ 7621 static int 7622 zfs_do_unmount(int argc, char **argv) 7623 { 7624 return (unshare_unmount(OP_MOUNT, argc, argv)); 7625 } 7626 7627 /* 7628 * zfs unshare -a 7629 * zfs unshare filesystem 7630 * 7631 * Unshare all filesystems, or a specific ZFS filesystem. 7632 */ 7633 static int 7634 zfs_do_unshare(int argc, char **argv) 7635 { 7636 return (unshare_unmount(OP_SHARE, argc, argv)); 7637 } 7638 7639 static int 7640 find_command_idx(char *command, int *idx) 7641 { 7642 int i; 7643 7644 for (i = 0; i < NCOMMAND; i++) { 7645 if (command_table[i].name == NULL) 7646 continue; 7647 7648 if (strcmp(command, command_table[i].name) == 0) { 7649 *idx = i; 7650 return (0); 7651 } 7652 } 7653 return (1); 7654 } 7655 7656 static int 7657 zfs_do_diff(int argc, char **argv) 7658 { 7659 zfs_handle_t *zhp; 7660 int flags = 0; 7661 char *tosnap = NULL; 7662 char *fromsnap = NULL; 7663 char *atp, *copy; 7664 int err = 0; 7665 int c; 7666 struct sigaction sa; 7667 7668 while ((c = getopt(argc, argv, "FHt")) != -1) { 7669 switch (c) { 7670 case 'F': 7671 flags |= ZFS_DIFF_CLASSIFY; 7672 break; 7673 case 'H': 7674 flags |= ZFS_DIFF_PARSEABLE; 7675 break; 7676 case 't': 7677 flags |= ZFS_DIFF_TIMESTAMP; 7678 break; 7679 default: 7680 (void) fprintf(stderr, 7681 gettext("invalid option '%c'\n"), optopt); 7682 usage(B_FALSE); 7683 } 7684 } 7685 7686 argc -= optind; 7687 argv += optind; 7688 7689 if (argc < 1) { 7690 (void) fprintf(stderr, 7691 gettext("must provide at least one snapshot name\n")); 7692 usage(B_FALSE); 7693 } 7694 7695 if (argc > 2) { 7696 (void) fprintf(stderr, gettext("too many arguments\n")); 7697 usage(B_FALSE); 7698 } 7699 7700 fromsnap = argv[0]; 7701 tosnap = (argc == 2) ? argv[1] : NULL; 7702 7703 copy = NULL; 7704 if (*fromsnap != '@') 7705 copy = strdup(fromsnap); 7706 else if (tosnap) 7707 copy = strdup(tosnap); 7708 if (copy == NULL) 7709 usage(B_FALSE); 7710 7711 if ((atp = strchr(copy, '@')) != NULL) 7712 *atp = '\0'; 7713 7714 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) { 7715 free(copy); 7716 return (1); 7717 } 7718 free(copy); 7719 7720 /* 7721 * Ignore SIGPIPE so that the library can give us 7722 * information on any failure 7723 */ 7724 if (sigemptyset(&sa.sa_mask) == -1) { 7725 err = errno; 7726 goto out; 7727 } 7728 sa.sa_flags = 0; 7729 sa.sa_handler = SIG_IGN; 7730 if (sigaction(SIGPIPE, &sa, NULL) == -1) { 7731 err = errno; 7732 goto out; 7733 } 7734 7735 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 7736 out: 7737 zfs_close(zhp); 7738 7739 return (err != 0); 7740 } 7741 7742 /* 7743 * zfs bookmark <fs@source>|<fs#source> <fs#bookmark> 7744 * 7745 * Creates a bookmark with the given name from the source snapshot 7746 * or creates a copy of an existing source bookmark. 7747 */ 7748 static int 7749 zfs_do_bookmark(int argc, char **argv) 7750 { 7751 char *source, *bookname; 7752 char expbuf[ZFS_MAX_DATASET_NAME_LEN]; 7753 int source_type; 7754 nvlist_t *nvl; 7755 int ret = 0; 7756 int c; 7757 7758 /* check options */ 7759 while ((c = getopt(argc, argv, "")) != -1) { 7760 switch (c) { 7761 case '?': 7762 (void) fprintf(stderr, 7763 gettext("invalid option '%c'\n"), optopt); 7764 goto usage; 7765 } 7766 } 7767 7768 argc -= optind; 7769 argv += optind; 7770 7771 /* check number of arguments */ 7772 if (argc < 1) { 7773 (void) fprintf(stderr, gettext("missing source argument\n")); 7774 goto usage; 7775 } 7776 if (argc < 2) { 7777 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7778 goto usage; 7779 } 7780 7781 source = argv[0]; 7782 bookname = argv[1]; 7783 7784 if (strchr(source, '@') == NULL && strchr(source, '#') == NULL) { 7785 (void) fprintf(stderr, 7786 gettext("invalid source name '%s': " 7787 "must contain a '@' or '#'\n"), source); 7788 goto usage; 7789 } 7790 if (strchr(bookname, '#') == NULL) { 7791 (void) fprintf(stderr, 7792 gettext("invalid bookmark name '%s': " 7793 "must contain a '#'\n"), bookname); 7794 goto usage; 7795 } 7796 7797 /* 7798 * expand source or bookname to full path: 7799 * one of them may be specified as short name 7800 */ 7801 { 7802 char **expand; 7803 char *source_short, *bookname_short; 7804 source_short = strpbrk(source, "@#"); 7805 bookname_short = strpbrk(bookname, "#"); 7806 if (source_short == source && 7807 bookname_short == bookname) { 7808 (void) fprintf(stderr, gettext( 7809 "either source or bookmark must be specified as " 7810 "full dataset paths")); 7811 goto usage; 7812 } else if (source_short != source && 7813 bookname_short != bookname) { 7814 expand = NULL; 7815 } else if (source_short != source) { 7816 strlcpy(expbuf, source, sizeof (expbuf)); 7817 expand = &bookname; 7818 } else if (bookname_short != bookname) { 7819 strlcpy(expbuf, bookname, sizeof (expbuf)); 7820 expand = &source; 7821 } else { 7822 abort(); 7823 } 7824 if (expand != NULL) { 7825 *strpbrk(expbuf, "@#") = '\0'; /* dataset name in buf */ 7826 (void) strlcat(expbuf, *expand, sizeof (expbuf)); 7827 *expand = expbuf; 7828 } 7829 } 7830 7831 /* determine source type */ 7832 switch (*strpbrk(source, "@#")) { 7833 case '@': source_type = ZFS_TYPE_SNAPSHOT; break; 7834 case '#': source_type = ZFS_TYPE_BOOKMARK; break; 7835 default: abort(); 7836 } 7837 7838 /* test the source exists */ 7839 zfs_handle_t *zhp; 7840 zhp = zfs_open(g_zfs, source, source_type); 7841 if (zhp == NULL) 7842 goto usage; 7843 zfs_close(zhp); 7844 7845 nvl = fnvlist_alloc(); 7846 fnvlist_add_string(nvl, bookname, source); 7847 ret = lzc_bookmark(nvl, NULL); 7848 fnvlist_free(nvl); 7849 7850 if (ret != 0) { 7851 const char *err_msg = NULL; 7852 char errbuf[1024]; 7853 7854 (void) snprintf(errbuf, sizeof (errbuf), 7855 dgettext(TEXT_DOMAIN, 7856 "cannot create bookmark '%s'"), bookname); 7857 7858 switch (ret) { 7859 case EXDEV: 7860 err_msg = "bookmark is in a different pool"; 7861 break; 7862 case ZFS_ERR_BOOKMARK_SOURCE_NOT_ANCESTOR: 7863 err_msg = "source is not an ancestor of the " 7864 "new bookmark's dataset"; 7865 break; 7866 case EEXIST: 7867 err_msg = "bookmark exists"; 7868 break; 7869 case EINVAL: 7870 err_msg = "invalid argument"; 7871 break; 7872 case ENOTSUP: 7873 err_msg = "bookmark feature not enabled"; 7874 break; 7875 case ENOSPC: 7876 err_msg = "out of space"; 7877 break; 7878 case ENOENT: 7879 err_msg = "dataset does not exist"; 7880 break; 7881 default: 7882 (void) zfs_standard_error(g_zfs, ret, errbuf); 7883 break; 7884 } 7885 if (err_msg != NULL) { 7886 (void) fprintf(stderr, "%s: %s\n", errbuf, 7887 dgettext(TEXT_DOMAIN, err_msg)); 7888 } 7889 } 7890 7891 return (ret != 0); 7892 7893 usage: 7894 usage(B_FALSE); 7895 return (-1); 7896 } 7897 7898 static int 7899 zfs_do_channel_program(int argc, char **argv) 7900 { 7901 int ret, fd, c; 7902 char *progbuf, *filename, *poolname; 7903 size_t progsize, progread; 7904 nvlist_t *outnvl = NULL; 7905 uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT; 7906 uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT; 7907 boolean_t sync_flag = B_TRUE, json_output = B_FALSE; 7908 zpool_handle_t *zhp; 7909 7910 /* check options */ 7911 while ((c = getopt(argc, argv, "nt:m:j")) != -1) { 7912 switch (c) { 7913 case 't': 7914 case 'm': { 7915 uint64_t arg; 7916 char *endp; 7917 7918 errno = 0; 7919 arg = strtoull(optarg, &endp, 0); 7920 if (errno != 0 || *endp != '\0') { 7921 (void) fprintf(stderr, gettext( 7922 "invalid argument " 7923 "'%s': expected integer\n"), optarg); 7924 goto usage; 7925 } 7926 7927 if (c == 't') { 7928 instrlimit = arg; 7929 } else { 7930 ASSERT3U(c, ==, 'm'); 7931 memlimit = arg; 7932 } 7933 break; 7934 } 7935 case 'n': { 7936 sync_flag = B_FALSE; 7937 break; 7938 } 7939 case 'j': { 7940 json_output = B_TRUE; 7941 break; 7942 } 7943 case '?': 7944 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 7945 optopt); 7946 goto usage; 7947 } 7948 } 7949 7950 argc -= optind; 7951 argv += optind; 7952 7953 if (argc < 2) { 7954 (void) fprintf(stderr, 7955 gettext("invalid number of arguments\n")); 7956 goto usage; 7957 } 7958 7959 poolname = argv[0]; 7960 filename = argv[1]; 7961 if (strcmp(filename, "-") == 0) { 7962 fd = 0; 7963 filename = "standard input"; 7964 } else if ((fd = open(filename, O_RDONLY)) < 0) { 7965 (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), 7966 filename, strerror(errno)); 7967 return (1); 7968 } 7969 7970 if ((zhp = zpool_open(g_zfs, poolname)) == NULL) { 7971 (void) fprintf(stderr, gettext("cannot open pool '%s'\n"), 7972 poolname); 7973 if (fd != 0) 7974 (void) close(fd); 7975 return (1); 7976 } 7977 zpool_close(zhp); 7978 7979 /* 7980 * Read in the channel program, expanding the program buffer as 7981 * necessary. 7982 */ 7983 progread = 0; 7984 progsize = 1024; 7985 progbuf = safe_malloc(progsize); 7986 do { 7987 ret = read(fd, progbuf + progread, progsize - progread); 7988 progread += ret; 7989 if (progread == progsize && ret > 0) { 7990 progsize *= 2; 7991 progbuf = safe_realloc(progbuf, progsize); 7992 } 7993 } while (ret > 0); 7994 7995 if (fd != 0) 7996 (void) close(fd); 7997 if (ret < 0) { 7998 free(progbuf); 7999 (void) fprintf(stderr, 8000 gettext("cannot read '%s': %s\n"), 8001 filename, strerror(errno)); 8002 return (1); 8003 } 8004 progbuf[progread] = '\0'; 8005 8006 /* 8007 * Any remaining arguments are passed as arguments to the lua script as 8008 * a string array: 8009 * { 8010 * "argv" -> [ "arg 1", ... "arg n" ], 8011 * } 8012 */ 8013 nvlist_t *argnvl = fnvlist_alloc(); 8014 fnvlist_add_string_array(argnvl, ZCP_ARG_CLIARGV, argv + 2, argc - 2); 8015 8016 if (sync_flag) { 8017 ret = lzc_channel_program(poolname, progbuf, 8018 instrlimit, memlimit, argnvl, &outnvl); 8019 } else { 8020 ret = lzc_channel_program_nosync(poolname, progbuf, 8021 instrlimit, memlimit, argnvl, &outnvl); 8022 } 8023 8024 if (ret != 0) { 8025 /* 8026 * On error, report the error message handed back by lua if one 8027 * exists. Otherwise, generate an appropriate error message, 8028 * falling back on strerror() for an unexpected return code. 8029 */ 8030 char *errstring = NULL; 8031 const char *msg = gettext("Channel program execution failed"); 8032 uint64_t instructions = 0; 8033 if (outnvl != NULL && nvlist_exists(outnvl, ZCP_RET_ERROR)) { 8034 (void) nvlist_lookup_string(outnvl, 8035 ZCP_RET_ERROR, &errstring); 8036 if (errstring == NULL) 8037 errstring = strerror(ret); 8038 if (ret == ETIME) { 8039 (void) nvlist_lookup_uint64(outnvl, 8040 ZCP_ARG_INSTRLIMIT, &instructions); 8041 } 8042 } else { 8043 switch (ret) { 8044 case EINVAL: 8045 errstring = 8046 "Invalid instruction or memory limit."; 8047 break; 8048 case ENOMEM: 8049 errstring = "Return value too large."; 8050 break; 8051 case ENOSPC: 8052 errstring = "Memory limit exhausted."; 8053 break; 8054 case ETIME: 8055 errstring = "Timed out."; 8056 break; 8057 case EPERM: 8058 errstring = "Permission denied. Channel " 8059 "programs must be run as root."; 8060 break; 8061 default: 8062 (void) zfs_standard_error(g_zfs, ret, msg); 8063 } 8064 } 8065 if (errstring != NULL) 8066 (void) fprintf(stderr, "%s:\n%s\n", msg, errstring); 8067 8068 if (ret == ETIME && instructions != 0) 8069 (void) fprintf(stderr, 8070 gettext("%llu Lua instructions\n"), 8071 (u_longlong_t)instructions); 8072 } else { 8073 if (json_output) { 8074 (void) nvlist_print_json(stdout, outnvl); 8075 } else if (nvlist_empty(outnvl)) { 8076 (void) fprintf(stdout, gettext("Channel program fully " 8077 "executed and did not produce output.\n")); 8078 } else { 8079 (void) fprintf(stdout, gettext("Channel program fully " 8080 "executed and produced output:\n")); 8081 dump_nvlist(outnvl, 4); 8082 } 8083 } 8084 8085 free(progbuf); 8086 fnvlist_free(outnvl); 8087 fnvlist_free(argnvl); 8088 return (ret != 0); 8089 8090 usage: 8091 usage(B_FALSE); 8092 return (-1); 8093 } 8094 8095 8096 typedef struct loadkey_cbdata { 8097 boolean_t cb_loadkey; 8098 boolean_t cb_recursive; 8099 boolean_t cb_noop; 8100 char *cb_keylocation; 8101 uint64_t cb_numfailed; 8102 uint64_t cb_numattempted; 8103 } loadkey_cbdata_t; 8104 8105 static int 8106 load_key_callback(zfs_handle_t *zhp, void *data) 8107 { 8108 int ret; 8109 boolean_t is_encroot; 8110 loadkey_cbdata_t *cb = data; 8111 uint64_t keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 8112 8113 /* 8114 * If we are working recursively, we want to skip loading / unloading 8115 * keys for non-encryption roots and datasets whose keys are already 8116 * in the desired end-state. 8117 */ 8118 if (cb->cb_recursive) { 8119 ret = zfs_crypto_get_encryption_root(zhp, &is_encroot, NULL); 8120 if (ret != 0) 8121 return (ret); 8122 if (!is_encroot) 8123 return (0); 8124 8125 if ((cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_AVAILABLE) || 8126 (!cb->cb_loadkey && keystatus == ZFS_KEYSTATUS_UNAVAILABLE)) 8127 return (0); 8128 } 8129 8130 cb->cb_numattempted++; 8131 8132 if (cb->cb_loadkey) 8133 ret = zfs_crypto_load_key(zhp, cb->cb_noop, cb->cb_keylocation); 8134 else 8135 ret = zfs_crypto_unload_key(zhp); 8136 8137 if (ret != 0) { 8138 cb->cb_numfailed++; 8139 return (ret); 8140 } 8141 8142 return (0); 8143 } 8144 8145 static int 8146 load_unload_keys(int argc, char **argv, boolean_t loadkey) 8147 { 8148 int c, ret = 0, flags = 0; 8149 boolean_t do_all = B_FALSE; 8150 loadkey_cbdata_t cb = { 0 }; 8151 8152 cb.cb_loadkey = loadkey; 8153 8154 while ((c = getopt(argc, argv, "anrL:")) != -1) { 8155 /* noop and alternate keylocations only apply to zfs load-key */ 8156 if (loadkey) { 8157 switch (c) { 8158 case 'n': 8159 cb.cb_noop = B_TRUE; 8160 continue; 8161 case 'L': 8162 cb.cb_keylocation = optarg; 8163 continue; 8164 default: 8165 break; 8166 } 8167 } 8168 8169 switch (c) { 8170 case 'a': 8171 do_all = B_TRUE; 8172 cb.cb_recursive = B_TRUE; 8173 break; 8174 case 'r': 8175 flags |= ZFS_ITER_RECURSE; 8176 cb.cb_recursive = B_TRUE; 8177 break; 8178 default: 8179 (void) fprintf(stderr, 8180 gettext("invalid option '%c'\n"), optopt); 8181 usage(B_FALSE); 8182 } 8183 } 8184 8185 argc -= optind; 8186 argv += optind; 8187 8188 if (!do_all && argc == 0) { 8189 (void) fprintf(stderr, 8190 gettext("Missing dataset argument or -a option\n")); 8191 usage(B_FALSE); 8192 } 8193 8194 if (do_all && argc != 0) { 8195 (void) fprintf(stderr, 8196 gettext("Cannot specify dataset with -a option\n")); 8197 usage(B_FALSE); 8198 } 8199 8200 if (cb.cb_recursive && cb.cb_keylocation != NULL && 8201 strcmp(cb.cb_keylocation, "prompt") != 0) { 8202 (void) fprintf(stderr, gettext("alternate keylocation may only " 8203 "be 'prompt' with -r or -a\n")); 8204 usage(B_FALSE); 8205 } 8206 8207 ret = zfs_for_each(argc, argv, flags, 8208 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, NULL, NULL, 0, 8209 load_key_callback, &cb); 8210 8211 if (cb.cb_noop || (cb.cb_recursive && cb.cb_numattempted != 0)) { 8212 (void) printf(gettext("%llu / %llu key(s) successfully %s\n"), 8213 (u_longlong_t)(cb.cb_numattempted - cb.cb_numfailed), 8214 (u_longlong_t)cb.cb_numattempted, 8215 loadkey ? (cb.cb_noop ? "verified" : "loaded") : 8216 "unloaded"); 8217 } 8218 8219 if (cb.cb_numfailed != 0) 8220 ret = -1; 8221 8222 return (ret); 8223 } 8224 8225 static int 8226 zfs_do_load_key(int argc, char **argv) 8227 { 8228 return (load_unload_keys(argc, argv, B_TRUE)); 8229 } 8230 8231 8232 static int 8233 zfs_do_unload_key(int argc, char **argv) 8234 { 8235 return (load_unload_keys(argc, argv, B_FALSE)); 8236 } 8237 8238 static int 8239 zfs_do_change_key(int argc, char **argv) 8240 { 8241 int c, ret; 8242 uint64_t keystatus; 8243 boolean_t loadkey = B_FALSE, inheritkey = B_FALSE; 8244 zfs_handle_t *zhp = NULL; 8245 nvlist_t *props = fnvlist_alloc(); 8246 8247 while ((c = getopt(argc, argv, "lio:")) != -1) { 8248 switch (c) { 8249 case 'l': 8250 loadkey = B_TRUE; 8251 break; 8252 case 'i': 8253 inheritkey = B_TRUE; 8254 break; 8255 case 'o': 8256 if (!parseprop(props, optarg)) { 8257 nvlist_free(props); 8258 return (1); 8259 } 8260 break; 8261 default: 8262 (void) fprintf(stderr, 8263 gettext("invalid option '%c'\n"), optopt); 8264 usage(B_FALSE); 8265 } 8266 } 8267 8268 if (inheritkey && !nvlist_empty(props)) { 8269 (void) fprintf(stderr, 8270 gettext("Properties not allowed for inheriting\n")); 8271 usage(B_FALSE); 8272 } 8273 8274 argc -= optind; 8275 argv += optind; 8276 8277 if (argc < 1) { 8278 (void) fprintf(stderr, gettext("Missing dataset argument\n")); 8279 usage(B_FALSE); 8280 } 8281 8282 if (argc > 1) { 8283 (void) fprintf(stderr, gettext("Too many arguments\n")); 8284 usage(B_FALSE); 8285 } 8286 8287 zhp = zfs_open(g_zfs, argv[argc - 1], 8288 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 8289 if (zhp == NULL) 8290 usage(B_FALSE); 8291 8292 if (loadkey) { 8293 keystatus = zfs_prop_get_int(zhp, ZFS_PROP_KEYSTATUS); 8294 if (keystatus != ZFS_KEYSTATUS_AVAILABLE) { 8295 ret = zfs_crypto_load_key(zhp, B_FALSE, NULL); 8296 if (ret != 0) { 8297 nvlist_free(props); 8298 zfs_close(zhp); 8299 return (-1); 8300 } 8301 } 8302 8303 /* refresh the properties so the new keystatus is visible */ 8304 zfs_refresh_properties(zhp); 8305 } 8306 8307 ret = zfs_crypto_rewrap(zhp, props, inheritkey); 8308 if (ret != 0) { 8309 nvlist_free(props); 8310 zfs_close(zhp); 8311 return (-1); 8312 } 8313 8314 nvlist_free(props); 8315 zfs_close(zhp); 8316 return (0); 8317 } 8318 8319 /* 8320 * 1) zfs project [-d|-r] <file|directory ...> 8321 * List project ID and inherit flag of file(s) or directories. 8322 * -d: List the directory itself, not its children. 8323 * -r: List subdirectories recursively. 8324 * 8325 * 2) zfs project -C [-k] [-r] <file|directory ...> 8326 * Clear project inherit flag and/or ID on the file(s) or directories. 8327 * -k: Keep the project ID unchanged. If not specified, the project ID 8328 * will be reset as zero. 8329 * -r: Clear on subdirectories recursively. 8330 * 8331 * 3) zfs project -c [-0] [-d|-r] [-p id] <file|directory ...> 8332 * Check project ID and inherit flag on the file(s) or directories, 8333 * report the outliers. 8334 * -0: Print file name followed by a NUL instead of newline. 8335 * -d: Check the directory itself, not its children. 8336 * -p: Specify the referenced ID for comparing with the target file(s) 8337 * or directories' project IDs. If not specified, the target (top) 8338 * directory's project ID will be used as the referenced one. 8339 * -r: Check subdirectories recursively. 8340 * 8341 * 4) zfs project [-p id] [-r] [-s] <file|directory ...> 8342 * Set project ID and/or inherit flag on the file(s) or directories. 8343 * -p: Set the project ID as the given id. 8344 * -r: Set on subdirectories recursively. If not specify "-p" option, 8345 * it will use top-level directory's project ID as the given id, 8346 * then set both project ID and inherit flag on all descendants 8347 * of the top-level directory. 8348 * -s: Set project inherit flag. 8349 */ 8350 static int 8351 zfs_do_project(int argc, char **argv) 8352 { 8353 zfs_project_control_t zpc = { 8354 .zpc_expected_projid = ZFS_INVALID_PROJID, 8355 .zpc_op = ZFS_PROJECT_OP_DEFAULT, 8356 .zpc_dironly = B_FALSE, 8357 .zpc_keep_projid = B_FALSE, 8358 .zpc_newline = B_TRUE, 8359 .zpc_recursive = B_FALSE, 8360 .zpc_set_flag = B_FALSE, 8361 }; 8362 int ret = 0, c; 8363 8364 if (argc < 2) 8365 usage(B_FALSE); 8366 8367 while ((c = getopt(argc, argv, "0Ccdkp:rs")) != -1) { 8368 switch (c) { 8369 case '0': 8370 zpc.zpc_newline = B_FALSE; 8371 break; 8372 case 'C': 8373 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 8374 (void) fprintf(stderr, gettext("cannot " 8375 "specify '-C' '-c' '-s' together\n")); 8376 usage(B_FALSE); 8377 } 8378 8379 zpc.zpc_op = ZFS_PROJECT_OP_CLEAR; 8380 break; 8381 case 'c': 8382 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 8383 (void) fprintf(stderr, gettext("cannot " 8384 "specify '-C' '-c' '-s' together\n")); 8385 usage(B_FALSE); 8386 } 8387 8388 zpc.zpc_op = ZFS_PROJECT_OP_CHECK; 8389 break; 8390 case 'd': 8391 zpc.zpc_dironly = B_TRUE; 8392 /* overwrite "-r" option */ 8393 zpc.zpc_recursive = B_FALSE; 8394 break; 8395 case 'k': 8396 zpc.zpc_keep_projid = B_TRUE; 8397 break; 8398 case 'p': { 8399 char *endptr; 8400 8401 errno = 0; 8402 zpc.zpc_expected_projid = strtoull(optarg, &endptr, 0); 8403 if (errno != 0 || *endptr != '\0') { 8404 (void) fprintf(stderr, 8405 gettext("project ID must be less than " 8406 "%u\n"), UINT32_MAX); 8407 usage(B_FALSE); 8408 } 8409 if (zpc.zpc_expected_projid >= UINT32_MAX) { 8410 (void) fprintf(stderr, 8411 gettext("invalid project ID\n")); 8412 usage(B_FALSE); 8413 } 8414 break; 8415 } 8416 case 'r': 8417 zpc.zpc_recursive = B_TRUE; 8418 /* overwrite "-d" option */ 8419 zpc.zpc_dironly = B_FALSE; 8420 break; 8421 case 's': 8422 if (zpc.zpc_op != ZFS_PROJECT_OP_DEFAULT) { 8423 (void) fprintf(stderr, gettext("cannot " 8424 "specify '-C' '-c' '-s' together\n")); 8425 usage(B_FALSE); 8426 } 8427 8428 zpc.zpc_set_flag = B_TRUE; 8429 zpc.zpc_op = ZFS_PROJECT_OP_SET; 8430 break; 8431 default: 8432 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 8433 optopt); 8434 usage(B_FALSE); 8435 } 8436 } 8437 8438 if (zpc.zpc_op == ZFS_PROJECT_OP_DEFAULT) { 8439 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) 8440 zpc.zpc_op = ZFS_PROJECT_OP_SET; 8441 else 8442 zpc.zpc_op = ZFS_PROJECT_OP_LIST; 8443 } 8444 8445 switch (zpc.zpc_op) { 8446 case ZFS_PROJECT_OP_LIST: 8447 if (zpc.zpc_keep_projid) { 8448 (void) fprintf(stderr, 8449 gettext("'-k' is only valid together with '-C'\n")); 8450 usage(B_FALSE); 8451 } 8452 if (!zpc.zpc_newline) { 8453 (void) fprintf(stderr, 8454 gettext("'-0' is only valid together with '-c'\n")); 8455 usage(B_FALSE); 8456 } 8457 break; 8458 case ZFS_PROJECT_OP_CHECK: 8459 if (zpc.zpc_keep_projid) { 8460 (void) fprintf(stderr, 8461 gettext("'-k' is only valid together with '-C'\n")); 8462 usage(B_FALSE); 8463 } 8464 break; 8465 case ZFS_PROJECT_OP_CLEAR: 8466 if (zpc.zpc_dironly) { 8467 (void) fprintf(stderr, 8468 gettext("'-d' is useless together with '-C'\n")); 8469 usage(B_FALSE); 8470 } 8471 if (!zpc.zpc_newline) { 8472 (void) fprintf(stderr, 8473 gettext("'-0' is only valid together with '-c'\n")); 8474 usage(B_FALSE); 8475 } 8476 if (zpc.zpc_expected_projid != ZFS_INVALID_PROJID) { 8477 (void) fprintf(stderr, 8478 gettext("'-p' is useless together with '-C'\n")); 8479 usage(B_FALSE); 8480 } 8481 break; 8482 case ZFS_PROJECT_OP_SET: 8483 if (zpc.zpc_dironly) { 8484 (void) fprintf(stderr, 8485 gettext("'-d' is useless for set project ID and/or " 8486 "inherit flag\n")); 8487 usage(B_FALSE); 8488 } 8489 if (zpc.zpc_keep_projid) { 8490 (void) fprintf(stderr, 8491 gettext("'-k' is only valid together with '-C'\n")); 8492 usage(B_FALSE); 8493 } 8494 if (!zpc.zpc_newline) { 8495 (void) fprintf(stderr, 8496 gettext("'-0' is only valid together with '-c'\n")); 8497 usage(B_FALSE); 8498 } 8499 break; 8500 default: 8501 ASSERT(0); 8502 break; 8503 } 8504 8505 argv += optind; 8506 argc -= optind; 8507 if (argc == 0) { 8508 (void) fprintf(stderr, 8509 gettext("missing file or directory target(s)\n")); 8510 usage(B_FALSE); 8511 } 8512 8513 for (int i = 0; i < argc; i++) { 8514 int err; 8515 8516 err = zfs_project_handle(argv[i], &zpc); 8517 if (err && !ret) 8518 ret = err; 8519 } 8520 8521 return (ret); 8522 } 8523 8524 static int 8525 zfs_do_wait(int argc, char **argv) 8526 { 8527 boolean_t enabled[ZFS_WAIT_NUM_ACTIVITIES]; 8528 int error, i; 8529 int c; 8530 8531 /* By default, wait for all types of activity. */ 8532 for (i = 0; i < ZFS_WAIT_NUM_ACTIVITIES; i++) 8533 enabled[i] = B_TRUE; 8534 8535 while ((c = getopt(argc, argv, "t:")) != -1) { 8536 switch (c) { 8537 case 't': 8538 { 8539 static char *col_subopts[] = { "deleteq", NULL }; 8540 char *value; 8541 8542 /* Reset activities array */ 8543 bzero(&enabled, sizeof (enabled)); 8544 while (*optarg != '\0') { 8545 int activity = getsubopt(&optarg, col_subopts, 8546 &value); 8547 8548 if (activity < 0) { 8549 (void) fprintf(stderr, 8550 gettext("invalid activity '%s'\n"), 8551 value); 8552 usage(B_FALSE); 8553 } 8554 8555 enabled[activity] = B_TRUE; 8556 } 8557 break; 8558 } 8559 case '?': 8560 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 8561 optopt); 8562 usage(B_FALSE); 8563 } 8564 } 8565 8566 argv += optind; 8567 argc -= optind; 8568 if (argc < 1) { 8569 (void) fprintf(stderr, gettext("missing 'filesystem' " 8570 "argument\n")); 8571 usage(B_FALSE); 8572 } 8573 if (argc > 1) { 8574 (void) fprintf(stderr, gettext("too many arguments\n")); 8575 usage(B_FALSE); 8576 } 8577 8578 zfs_handle_t *zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM); 8579 if (zhp == NULL) 8580 return (1); 8581 8582 for (;;) { 8583 boolean_t missing = B_FALSE; 8584 boolean_t any_waited = B_FALSE; 8585 8586 for (int i = 0; i < ZFS_WAIT_NUM_ACTIVITIES; i++) { 8587 boolean_t waited; 8588 8589 if (!enabled[i]) 8590 continue; 8591 8592 error = zfs_wait_status(zhp, i, &missing, &waited); 8593 if (error != 0 || missing) 8594 break; 8595 8596 any_waited = (any_waited || waited); 8597 } 8598 8599 if (error != 0 || missing || !any_waited) 8600 break; 8601 } 8602 8603 zfs_close(zhp); 8604 8605 return (error); 8606 } 8607 8608 /* 8609 * Display version message 8610 */ 8611 static int 8612 zfs_do_version(int argc, char **argv) 8613 { 8614 if (zfs_version_print() == -1) 8615 return (1); 8616 8617 return (0); 8618 } 8619 8620 int 8621 main(int argc, char **argv) 8622 { 8623 int ret = 0; 8624 int i = 0; 8625 char *cmdname; 8626 char **newargv; 8627 8628 (void) setlocale(LC_ALL, ""); 8629 (void) setlocale(LC_NUMERIC, "C"); 8630 (void) textdomain(TEXT_DOMAIN); 8631 8632 opterr = 0; 8633 8634 /* 8635 * Make sure the user has specified some command. 8636 */ 8637 if (argc < 2) { 8638 (void) fprintf(stderr, gettext("missing command\n")); 8639 usage(B_FALSE); 8640 } 8641 8642 cmdname = argv[1]; 8643 8644 /* 8645 * The 'umount' command is an alias for 'unmount' 8646 */ 8647 if (strcmp(cmdname, "umount") == 0) 8648 cmdname = "unmount"; 8649 8650 /* 8651 * The 'recv' command is an alias for 'receive' 8652 */ 8653 if (strcmp(cmdname, "recv") == 0) 8654 cmdname = "receive"; 8655 8656 /* 8657 * The 'snap' command is an alias for 'snapshot' 8658 */ 8659 if (strcmp(cmdname, "snap") == 0) 8660 cmdname = "snapshot"; 8661 8662 /* 8663 * Special case '-?' 8664 */ 8665 if ((strcmp(cmdname, "-?") == 0) || 8666 (strcmp(cmdname, "--help") == 0)) 8667 usage(B_TRUE); 8668 8669 /* 8670 * Special case '-V|--version' 8671 */ 8672 if ((strcmp(cmdname, "-V") == 0) || (strcmp(cmdname, "--version") == 0)) 8673 return (zfs_do_version(argc, argv)); 8674 8675 if ((g_zfs = libzfs_init()) == NULL) { 8676 (void) fprintf(stderr, "%s\n", libzfs_error_init(errno)); 8677 return (1); 8678 } 8679 8680 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 8681 8682 libzfs_print_on_error(g_zfs, B_TRUE); 8683 8684 /* 8685 * Many commands modify input strings for string parsing reasons. 8686 * We create a copy to protect the original argv. 8687 */ 8688 newargv = malloc((argc + 1) * sizeof (newargv[0])); 8689 for (i = 0; i < argc; i++) 8690 newargv[i] = strdup(argv[i]); 8691 newargv[argc] = NULL; 8692 8693 /* 8694 * Run the appropriate command. 8695 */ 8696 libzfs_mnttab_cache(g_zfs, B_TRUE); 8697 if (find_command_idx(cmdname, &i) == 0) { 8698 current_command = &command_table[i]; 8699 ret = command_table[i].func(argc - 1, newargv + 1); 8700 } else if (strchr(cmdname, '=') != NULL) { 8701 verify(find_command_idx("set", &i) == 0); 8702 current_command = &command_table[i]; 8703 ret = command_table[i].func(argc, newargv); 8704 } else { 8705 (void) fprintf(stderr, gettext("unrecognized " 8706 "command '%s'\n"), cmdname); 8707 usage(B_FALSE); 8708 ret = 1; 8709 } 8710 8711 for (i = 0; i < argc; i++) 8712 free(newargv[i]); 8713 free(newargv); 8714 8715 if (ret == 0 && log_history) 8716 (void) zpool_log_history(g_zfs, history_str); 8717 8718 libzfs_fini(g_zfs); 8719 8720 /* 8721 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 8722 * for the purposes of running ::findleaks. 8723 */ 8724 if (getenv("ZFS_ABORT") != NULL) { 8725 (void) printf("dumping core by request\n"); 8726 abort(); 8727 } 8728 8729 return (ret); 8730 } 8731 8732 #ifdef __FreeBSD__ 8733 #include <sys/jail.h> 8734 #include <jail.h> 8735 /* 8736 * Attach/detach the given dataset to/from the given jail 8737 */ 8738 /* ARGSUSED */ 8739 static int 8740 zfs_do_jail_impl(int argc, char **argv, boolean_t attach) 8741 { 8742 zfs_handle_t *zhp; 8743 int jailid, ret; 8744 8745 /* check number of arguments */ 8746 if (argc < 3) { 8747 (void) fprintf(stderr, gettext("missing argument(s)\n")); 8748 usage(B_FALSE); 8749 } 8750 if (argc > 3) { 8751 (void) fprintf(stderr, gettext("too many arguments\n")); 8752 usage(B_FALSE); 8753 } 8754 8755 jailid = jail_getid(argv[1]); 8756 if (jailid < 0) { 8757 (void) fprintf(stderr, gettext("invalid jail id or name\n")); 8758 usage(B_FALSE); 8759 } 8760 8761 zhp = zfs_open(g_zfs, argv[2], ZFS_TYPE_FILESYSTEM); 8762 if (zhp == NULL) 8763 return (1); 8764 8765 ret = (zfs_jail(zhp, jailid, attach) != 0); 8766 8767 zfs_close(zhp); 8768 return (ret); 8769 } 8770 8771 /* 8772 * zfs jail jailid filesystem 8773 * 8774 * Attach the given dataset to the given jail 8775 */ 8776 /* ARGSUSED */ 8777 static int 8778 zfs_do_jail(int argc, char **argv) 8779 { 8780 return (zfs_do_jail_impl(argc, argv, B_TRUE)); 8781 } 8782 8783 /* 8784 * zfs unjail jailid filesystem 8785 * 8786 * Detach the given dataset from the given jail 8787 */ 8788 /* ARGSUSED */ 8789 static int 8790 zfs_do_unjail(int argc, char **argv) 8791 { 8792 return (zfs_do_jail_impl(argc, argv, B_FALSE)); 8793 } 8794 #endif 8795