1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #ifndef _SYS_ZONE_H 26 #define _SYS_ZONE_H 27 28 #include <sys/types.h> 29 #include <sys/mutex.h> 30 #include <sys/param.h> 31 #include <sys/rctl.h> 32 #include <sys/ipc_rctl.h> 33 #include <sys/pset.h> 34 #include <sys/tsol/label.h> 35 #include <sys/cred.h> 36 #include <sys/netstack.h> 37 #include <sys/uadmin.h> 38 #include <sys/ksynch.h> 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 /* 45 * NOTE 46 * 47 * The contents of this file are private to the implementation of 48 * Solaris and are subject to change at any time without notice. 49 * Applications and drivers using these interfaces may fail to 50 * run on future releases. 51 */ 52 53 /* Available both in kernel and for user space */ 54 55 /* zone id restrictions and special ids */ 56 #define MAX_ZONEID 9999 57 #define MIN_USERZONEID 1 /* lowest user-creatable zone ID */ 58 #define MIN_ZONEID 0 /* minimum zone ID on system */ 59 #define GLOBAL_ZONEID 0 60 #define ZONEID_WIDTH 4 /* for printf */ 61 62 /* 63 * Special zoneid_t token to refer to all zones. 64 */ 65 #define ALL_ZONES (-1) 66 67 /* system call subcodes */ 68 #define ZONE_CREATE 0 69 #define ZONE_DESTROY 1 70 #define ZONE_GETATTR 2 71 #define ZONE_ENTER 3 72 #define ZONE_LIST 4 73 #define ZONE_SHUTDOWN 5 74 #define ZONE_LOOKUP 6 75 #define ZONE_BOOT 7 76 #define ZONE_VERSION 8 77 #define ZONE_SETATTR 9 78 #define ZONE_ADD_DATALINK 10 79 #define ZONE_DEL_DATALINK 11 80 #define ZONE_CHECK_DATALINK 12 81 #define ZONE_LIST_DATALINK 13 82 83 /* zone attributes */ 84 #define ZONE_ATTR_ROOT 1 85 #define ZONE_ATTR_NAME 2 86 #define ZONE_ATTR_STATUS 3 87 #define ZONE_ATTR_PRIVSET 4 88 #define ZONE_ATTR_UNIQID 5 89 #define ZONE_ATTR_POOLID 6 90 #define ZONE_ATTR_INITPID 7 91 #define ZONE_ATTR_SLBL 8 92 #define ZONE_ATTR_INITNAME 9 93 #define ZONE_ATTR_BOOTARGS 10 94 #define ZONE_ATTR_BRAND 11 95 #define ZONE_ATTR_PHYS_MCAP 12 96 #define ZONE_ATTR_SCHED_CLASS 13 97 #define ZONE_ATTR_FLAGS 14 98 #define ZONE_ATTR_HOSTID 15 99 100 /* Start of the brand-specific attribute namespace */ 101 #define ZONE_ATTR_BRAND_ATTRS 32768 102 103 #define ZONE_EVENT_CHANNEL "com.sun:zones:status" 104 #define ZONE_EVENT_STATUS_CLASS "status" 105 #define ZONE_EVENT_STATUS_SUBCLASS "change" 106 107 #define ZONE_EVENT_UNINITIALIZED "uninitialized" 108 #define ZONE_EVENT_INITIALIZED "initialized" 109 #define ZONE_EVENT_READY "ready" 110 #define ZONE_EVENT_RUNNING "running" 111 #define ZONE_EVENT_SHUTTING_DOWN "shutting_down" 112 113 #define ZONE_CB_NAME "zonename" 114 #define ZONE_CB_NEWSTATE "newstate" 115 #define ZONE_CB_OLDSTATE "oldstate" 116 #define ZONE_CB_TIMESTAMP "when" 117 #define ZONE_CB_ZONEID "zoneid" 118 119 /* 120 * Exit values that may be returned by scripts or programs invoked by various 121 * zone commands. 122 * 123 * These are defined as: 124 * 125 * ZONE_SUBPROC_OK 126 * =============== 127 * The subprocess completed successfully. 128 * 129 * ZONE_SUBPROC_USAGE 130 * ================== 131 * The subprocess failed with a usage message, or a usage message should 132 * be output in its behalf. 133 * 134 * ZONE_SUBPROC_NOTCOMPLETE 135 * ======================== 136 * The subprocess did not complete, but the actions performed by the 137 * subprocess require no recovery actions by the user. 138 * 139 * For example, if the subprocess were called by "zoneadm install," the 140 * installation of the zone did not succeed but the user need not perform 141 * a "zoneadm uninstall" before attempting another install. 142 * 143 * ZONE_SUBPROC_FATAL 144 * ================== 145 * The subprocess failed in a fatal manner, usually one that will require 146 * some type of recovery action by the user. 147 * 148 * For example, if the subprocess were called by "zoneadm install," the 149 * installation of the zone did not succeed and the user will need to 150 * perform a "zoneadm uninstall" before another install attempt is 151 * possible. 152 * 153 * The non-success exit values are large to avoid accidental collision 154 * with values used internally by some commands (e.g. "Z_ERR" and 155 * "Z_USAGE" as used by zoneadm.) 156 */ 157 #define ZONE_SUBPROC_OK 0 158 #define ZONE_SUBPROC_USAGE 253 159 #define ZONE_SUBPROC_NOTCOMPLETE 254 160 #define ZONE_SUBPROC_FATAL 255 161 162 #ifdef _SYSCALL32 163 typedef struct { 164 caddr32_t zone_name; 165 caddr32_t zone_root; 166 caddr32_t zone_privs; 167 size32_t zone_privssz; 168 caddr32_t rctlbuf; 169 size32_t rctlbufsz; 170 caddr32_t extended_error; 171 caddr32_t zfsbuf; 172 size32_t zfsbufsz; 173 int match; /* match level */ 174 uint32_t doi; /* DOI for label */ 175 caddr32_t label; /* label associated with zone */ 176 int flags; 177 } zone_def32; 178 #endif 179 typedef struct { 180 const char *zone_name; 181 const char *zone_root; 182 const struct priv_set *zone_privs; 183 size_t zone_privssz; 184 const char *rctlbuf; 185 size_t rctlbufsz; 186 int *extended_error; 187 const char *zfsbuf; 188 size_t zfsbufsz; 189 int match; /* match level */ 190 uint32_t doi; /* DOI for label */ 191 const bslabel_t *label; /* label associated with zone */ 192 int flags; 193 } zone_def; 194 195 /* extended error information */ 196 #define ZE_UNKNOWN 0 /* No extended error info */ 197 #define ZE_CHROOTED 1 /* tried to zone_create from chroot */ 198 #define ZE_AREMOUNTS 2 /* there are mounts within the zone */ 199 #define ZE_LABELINUSE 3 /* label is already in use by some other zone */ 200 201 /* zone_status */ 202 typedef enum { 203 ZONE_IS_UNINITIALIZED = 0, 204 ZONE_IS_INITIALIZED, 205 ZONE_IS_READY, 206 ZONE_IS_BOOTING, 207 ZONE_IS_RUNNING, 208 ZONE_IS_SHUTTING_DOWN, 209 ZONE_IS_EMPTY, 210 ZONE_IS_DOWN, 211 ZONE_IS_DYING, 212 ZONE_IS_DEAD 213 } zone_status_t; 214 #define ZONE_MIN_STATE ZONE_IS_UNINITIALIZED 215 #define ZONE_MAX_STATE ZONE_IS_DEAD 216 217 /* 218 * Valid commands which may be issued by zoneadm to zoneadmd. The kernel also 219 * communicates with zoneadmd, but only uses Z_REBOOT and Z_HALT. 220 */ 221 typedef enum zone_cmd { 222 Z_READY, Z_BOOT, Z_FORCEBOOT, Z_REBOOT, Z_HALT, Z_NOTE_UNINSTALLING, 223 Z_MOUNT, Z_FORCEMOUNT, Z_UNMOUNT 224 } zone_cmd_t; 225 226 /* 227 * The structure of a request to zoneadmd. 228 */ 229 typedef struct zone_cmd_arg { 230 uint64_t uniqid; /* unique "generation number" */ 231 zone_cmd_t cmd; /* requested action */ 232 uint32_t _pad; /* need consistent 32/64 bit alignmt */ 233 char locale[MAXPATHLEN]; /* locale in which to render messages */ 234 char bootbuf[BOOTARGS_MAX]; /* arguments passed to zone_boot() */ 235 } zone_cmd_arg_t; 236 237 /* 238 * Structure of zoneadmd's response to a request. A NULL return value means 239 * the caller should attempt to restart zoneadmd and retry. 240 */ 241 typedef struct zone_cmd_rval { 242 int rval; /* return value of request */ 243 char errbuf[1]; /* variable-sized buffer containing error messages */ 244 } zone_cmd_rval_t; 245 246 /* 247 * The zone support infrastructure uses the zone name as a component 248 * of unix domain (AF_UNIX) sockets, which are limited to 108 characters 249 * in length, so ZONENAME_MAX is limited by that. 250 */ 251 #define ZONENAME_MAX 64 252 253 #define GLOBAL_ZONENAME "global" 254 255 /* 256 * Extended Regular expression (see regex(5)) which matches all valid zone 257 * names. 258 */ 259 #define ZONENAME_REGEXP "[a-zA-Z0-9][-_.a-zA-Z0-9]{0,62}" 260 261 /* 262 * Where the zones support infrastructure places temporary files. 263 */ 264 #define ZONES_TMPDIR "/var/run/zones" 265 266 /* 267 * The path to the door used by clients to communicate with zoneadmd. 268 */ 269 #define ZONE_DOOR_PATH ZONES_TMPDIR "/%s.zoneadmd_door" 270 271 /* zone_flags */ 272 #define ZF_HASHED_LABEL 0x2 /* zone has a unique label */ 273 #define ZF_IS_SCRATCH 0x4 /* scratch zone */ 274 #define ZF_NET_EXCL 0x8 /* Zone has an exclusive IP stack */ 275 276 /* zone_create flags */ 277 #define ZCF_NET_EXCL 0x1 /* Create a zone with exclusive IP */ 278 279 #ifdef _KERNEL 280 /* 281 * We need to protect the definition of 'list_t' from userland applications and 282 * libraries which may be defining ther own versions. 283 */ 284 #include <sys/list.h> 285 286 #define GLOBAL_ZONEUNIQID 0 /* uniqid of the global zone */ 287 288 struct pool; 289 struct brand; 290 291 /* 292 * Structure to record list of ZFS datasets exported to a zone. 293 */ 294 typedef struct zone_dataset { 295 char *zd_dataset; 296 list_node_t zd_linkage; 297 } zone_dataset_t; 298 299 /* 300 * structure for zone kstats 301 */ 302 typedef struct zone_kstat { 303 kstat_named_t zk_zonename; 304 kstat_named_t zk_usage; 305 kstat_named_t zk_value; 306 } zone_kstat_t; 307 308 struct cpucap; 309 310 typedef struct zone { 311 /* 312 * zone_name is never modified once set. 313 */ 314 char *zone_name; /* zone's configuration name */ 315 /* 316 * zone_nodename and zone_domain are never freed once allocated. 317 */ 318 char *zone_nodename; /* utsname.nodename equivalent */ 319 char *zone_domain; /* srpc_domain equivalent */ 320 /* 321 * zone_hostid is used for per-zone hostid emulation. 322 * Currently it isn't modified after it's set (so no locks protect 323 * accesses), but that might have to change when we allow 324 * administrators to change running zones' properties. 325 * 326 * The global zone's zone_hostid must always be HW_INVALID_HOSTID so 327 * that zone_get_hostid() will function correctly. 328 */ 329 uint32_t zone_hostid; /* zone's hostid, HW_INVALID_HOSTID */ 330 /* if not emulated */ 331 /* 332 * zone_lock protects the following fields of a zone_t: 333 * zone_ref 334 * zone_cred_ref 335 * zone_ntasks 336 * zone_flags 337 * zone_zsd 338 * zone_pfexecd 339 */ 340 kmutex_t zone_lock; 341 /* 342 * zone_linkage is the zone's linkage into the active or 343 * death-row list. The field is protected by zonehash_lock. 344 */ 345 list_node_t zone_linkage; 346 zoneid_t zone_id; /* ID of zone */ 347 uint_t zone_ref; /* count of zone_hold()s on zone */ 348 uint_t zone_cred_ref; /* count of zone_hold_cred()s on zone */ 349 /* 350 * zone_rootvp and zone_rootpath can never be modified once set. 351 */ 352 struct vnode *zone_rootvp; /* zone's root vnode */ 353 char *zone_rootpath; /* Path to zone's root + '/' */ 354 ushort_t zone_flags; /* misc flags */ 355 zone_status_t zone_status; /* protected by zone_status_lock */ 356 uint_t zone_ntasks; /* number of tasks executing in zone */ 357 kmutex_t zone_nlwps_lock; /* protects zone_nlwps, and *_nlwps */ 358 /* counters in projects and tasks */ 359 /* that are within the zone */ 360 rctl_qty_t zone_nlwps; /* number of lwps in zone */ 361 rctl_qty_t zone_nlwps_ctl; /* protected by zone_rctls->rcs_lock */ 362 rctl_qty_t zone_shmmax; /* System V shared memory usage */ 363 ipc_rqty_t zone_ipc; /* System V IPC id resource usage */ 364 365 uint_t zone_rootpathlen; /* strlen(zone_rootpath) + 1 */ 366 uint32_t zone_shares; /* FSS shares allocated to zone */ 367 rctl_set_t *zone_rctls; /* zone-wide (zone.*) rctls */ 368 kmutex_t zone_mem_lock; /* protects zone_locked_mem and */ 369 /* kpd_locked_mem for all */ 370 /* projects in zone. */ 371 /* Also protects zone_max_swap */ 372 /* grab after p_lock, before rcs_lock */ 373 rctl_qty_t zone_locked_mem; /* bytes of locked memory in */ 374 /* zone */ 375 rctl_qty_t zone_locked_mem_ctl; /* Current locked memory */ 376 /* limit. Protected by */ 377 /* zone_rctls->rcs_lock */ 378 rctl_qty_t zone_max_swap; /* bytes of swap reserved by zone */ 379 rctl_qty_t zone_max_swap_ctl; /* current swap limit. */ 380 /* Protected by */ 381 /* zone_rctls->rcs_lock */ 382 list_t zone_zsd; /* list of Zone-Specific Data values */ 383 kcondvar_t zone_cv; /* used to signal state changes */ 384 struct proc *zone_zsched; /* Dummy kernel "zsched" process */ 385 pid_t zone_proc_initpid; /* pid of "init" for this zone */ 386 char *zone_initname; /* fs path to 'init' */ 387 int zone_boot_err; /* for zone_boot() if boot fails */ 388 char *zone_bootargs; /* arguments passed via zone_boot() */ 389 uint64_t zone_phys_mcap; /* physical memory cap */ 390 /* 391 * zone_kthreads is protected by zone_status_lock. 392 */ 393 kthread_t *zone_kthreads; /* kernel threads in zone */ 394 struct priv_set *zone_privset; /* limit set for zone */ 395 /* 396 * zone_vfslist is protected by vfs_list_lock(). 397 */ 398 struct vfs *zone_vfslist; /* list of FS's mounted in zone */ 399 uint64_t zone_uniqid; /* unique zone generation number */ 400 struct cred *zone_kcred; /* kcred-like, zone-limited cred */ 401 /* 402 * zone_pool is protected by pool_lock(). 403 */ 404 struct pool *zone_pool; /* pool the zone is bound to */ 405 hrtime_t zone_pool_mod; /* last pool bind modification time */ 406 /* zone_psetid is protected by cpu_lock */ 407 psetid_t zone_psetid; /* pset the zone is bound to */ 408 /* 409 * The following two can be read without holding any locks. They are 410 * updated under cpu_lock. 411 */ 412 int zone_ncpus; /* zone's idea of ncpus */ 413 int zone_ncpus_online; /* zone's idea of ncpus_online */ 414 /* 415 * List of ZFS datasets exported to this zone. 416 */ 417 list_t zone_datasets; /* list of datasets */ 418 419 ts_label_t *zone_slabel; /* zone sensitivity label */ 420 int zone_match; /* require label match for packets */ 421 tsol_mlp_list_t zone_mlps; /* MLPs on zone-private addresses */ 422 423 boolean_t zone_restart_init; /* Restart init if it dies? */ 424 struct brand *zone_brand; /* zone's brand */ 425 void *zone_brand_data; /* store brand specific data */ 426 id_t zone_defaultcid; /* dflt scheduling class id */ 427 kstat_t *zone_swapresv_kstat; 428 kstat_t *zone_lockedmem_kstat; 429 /* 430 * zone_dl_list is protected by zone_lock 431 */ 432 list_t zone_dl_list; 433 netstack_t *zone_netstack; 434 struct cpucap *zone_cpucap; /* CPU caps data */ 435 /* 436 * Solaris Auditing per-zone audit context 437 */ 438 struct au_kcontext *zone_audit_kctxt; 439 /* 440 * For private use by mntfs. 441 */ 442 struct mntelem *zone_mntfs_db; 443 krwlock_t zone_mntfs_db_lock; 444 445 struct klpd_reg *zone_pfexecd; 446 } zone_t; 447 448 /* 449 * Special value of zone_psetid to indicate that pools are disabled. 450 */ 451 #define ZONE_PS_INVAL PS_MYID 452 453 454 extern zone_t zone0; 455 extern zone_t *global_zone; 456 extern uint_t maxzones; 457 extern rctl_hndl_t rc_zone_nlwps; 458 459 extern long zone(int, void *, void *, void *, void *); 460 extern void zone_zsd_init(void); 461 extern void zone_init(void); 462 extern void zone_hold(zone_t *); 463 extern void zone_rele(zone_t *); 464 extern void zone_cred_hold(zone_t *); 465 extern void zone_cred_rele(zone_t *); 466 extern void zone_task_hold(zone_t *); 467 extern void zone_task_rele(zone_t *); 468 extern zone_t *zone_find_by_id(zoneid_t); 469 extern zone_t *zone_find_by_label(const ts_label_t *); 470 extern zone_t *zone_find_by_name(char *); 471 extern zone_t *zone_find_by_any_path(const char *, boolean_t); 472 extern zone_t *zone_find_by_path(const char *); 473 extern zoneid_t getzoneid(void); 474 extern zone_t *zone_find_by_id_nolock(zoneid_t); 475 extern int zone_datalink_walk(zoneid_t, int (*)(datalink_id_t, void *), void *); 476 extern int zone_check_datalink(zoneid_t *, datalink_id_t); 477 478 /* 479 * Zone-specific data (ZSD) APIs 480 */ 481 /* 482 * The following is what code should be initializing its zone_key_t to if it 483 * calls zone_getspecific() without necessarily knowing that zone_key_create() 484 * has been called on the key. 485 */ 486 #define ZONE_KEY_UNINITIALIZED 0 487 488 typedef uint_t zone_key_t; 489 490 extern void zone_key_create(zone_key_t *, void *(*)(zoneid_t), 491 void (*)(zoneid_t, void *), void (*)(zoneid_t, void *)); 492 extern int zone_key_delete(zone_key_t); 493 extern void *zone_getspecific(zone_key_t, zone_t *); 494 extern int zone_setspecific(zone_key_t, zone_t *, const void *); 495 496 /* 497 * The definition of a zsd_entry is truly private to zone.c and is only 498 * placed here so it can be shared with mdb. 499 * 500 * State maintained for each zone times each registered key, which tracks 501 * the state of the create, shutdown and destroy callbacks. 502 * 503 * zsd_flags is used to keep track of pending actions to avoid holding locks 504 * when calling the create/shutdown/destroy callbacks, since doing so 505 * could lead to deadlocks. 506 */ 507 struct zsd_entry { 508 zone_key_t zsd_key; /* Key used to lookup value */ 509 void *zsd_data; /* Caller-managed value */ 510 /* 511 * Callbacks to be executed when a zone is created, shutdown, and 512 * destroyed, respectively. 513 */ 514 void *(*zsd_create)(zoneid_t); 515 void (*zsd_shutdown)(zoneid_t, void *); 516 void (*zsd_destroy)(zoneid_t, void *); 517 list_node_t zsd_linkage; 518 uint16_t zsd_flags; /* See below */ 519 kcondvar_t zsd_cv; 520 }; 521 522 /* 523 * zsd_flags 524 */ 525 #define ZSD_CREATE_NEEDED 0x0001 526 #define ZSD_CREATE_INPROGRESS 0x0002 527 #define ZSD_CREATE_COMPLETED 0x0004 528 #define ZSD_SHUTDOWN_NEEDED 0x0010 529 #define ZSD_SHUTDOWN_INPROGRESS 0x0020 530 #define ZSD_SHUTDOWN_COMPLETED 0x0040 531 #define ZSD_DESTROY_NEEDED 0x0100 532 #define ZSD_DESTROY_INPROGRESS 0x0200 533 #define ZSD_DESTROY_COMPLETED 0x0400 534 535 #define ZSD_CREATE_ALL \ 536 (ZSD_CREATE_NEEDED|ZSD_CREATE_INPROGRESS|ZSD_CREATE_COMPLETED) 537 #define ZSD_SHUTDOWN_ALL \ 538 (ZSD_SHUTDOWN_NEEDED|ZSD_SHUTDOWN_INPROGRESS|ZSD_SHUTDOWN_COMPLETED) 539 #define ZSD_DESTROY_ALL \ 540 (ZSD_DESTROY_NEEDED|ZSD_DESTROY_INPROGRESS|ZSD_DESTROY_COMPLETED) 541 542 #define ZSD_ALL_INPROGRESS \ 543 (ZSD_CREATE_INPROGRESS|ZSD_SHUTDOWN_INPROGRESS|ZSD_DESTROY_INPROGRESS) 544 545 /* 546 * Macros to help with zone visibility restrictions. 547 */ 548 549 /* 550 * Is process in the global zone? 551 */ 552 #define INGLOBALZONE(p) \ 553 ((p)->p_zone == global_zone) 554 555 /* 556 * Can process view objects in given zone? 557 */ 558 #define HASZONEACCESS(p, zoneid) \ 559 ((p)->p_zone->zone_id == (zoneid) || INGLOBALZONE(p)) 560 561 /* 562 * Convenience macro to see if a resolved path is visible from within a 563 * given zone. 564 * 565 * The basic idea is that the first (zone_rootpathlen - 1) bytes of the 566 * two strings must be equal. Since the rootpathlen has a trailing '/', 567 * we want to skip everything in the path up to (but not including) the 568 * trailing '/'. 569 */ 570 #define ZONE_PATH_VISIBLE(path, zone) \ 571 (strncmp((path), (zone)->zone_rootpath, \ 572 (zone)->zone_rootpathlen - 1) == 0) 573 574 /* 575 * Convenience macro to go from the global view of a path to that seen 576 * from within said zone. It is the responsibility of the caller to 577 * ensure that the path is a resolved one (ie, no '..'s or '.'s), and is 578 * in fact visible from within the zone. 579 */ 580 #define ZONE_PATH_TRANSLATE(path, zone) \ 581 (ASSERT(ZONE_PATH_VISIBLE(path, zone)), \ 582 (path) + (zone)->zone_rootpathlen - 2) 583 584 /* 585 * Special processes visible in all zones. 586 */ 587 #define ZONE_SPECIALPID(x) ((x) == 0 || (x) == 1) 588 589 /* 590 * Zone-safe version of thread_create() to be used when the caller wants to 591 * create a kernel thread to run within the current zone's context. 592 */ 593 extern kthread_t *zthread_create(caddr_t, size_t, void (*)(), void *, size_t, 594 pri_t); 595 extern void zthread_exit(void); 596 597 /* 598 * Functions for an external observer to register interest in a zone's status 599 * change. Observers will be woken up when the zone status equals the status 600 * argument passed in (in the case of zone_status_timedwait, the function may 601 * also return because of a timeout; zone_status_wait_sig may return early due 602 * to a signal being delivered; zone_status_timedwait_sig may return for any of 603 * the above reasons). 604 * 605 * Otherwise these behave identically to cv_timedwait(), cv_wait(), and 606 * cv_wait_sig() respectively. 607 */ 608 extern clock_t zone_status_timedwait(zone_t *, clock_t, zone_status_t); 609 extern clock_t zone_status_timedwait_sig(zone_t *, clock_t, zone_status_t); 610 extern void zone_status_wait(zone_t *, zone_status_t); 611 extern int zone_status_wait_sig(zone_t *, zone_status_t); 612 613 /* 614 * Get the status of the zone (at the time it was called). The state may 615 * have progressed by the time it is returned. 616 */ 617 extern zone_status_t zone_status_get(zone_t *); 618 619 /* 620 * Safely get the hostid of the specified zone (defaults to machine's hostid 621 * if the specified zone doesn't emulate a hostid). Passing NULL retrieves 622 * the global zone's (i.e., physical system's) hostid. 623 */ 624 extern uint32_t zone_get_hostid(zone_t *); 625 626 /* 627 * Get the "kcred" credentials corresponding to the given zone. 628 */ 629 extern struct cred *zone_get_kcred(zoneid_t); 630 631 /* 632 * Get/set the pool the zone is currently bound to. 633 */ 634 extern struct pool *zone_pool_get(zone_t *); 635 extern void zone_pool_set(zone_t *, struct pool *); 636 637 /* 638 * Get/set the pset the zone is currently using. 639 */ 640 extern psetid_t zone_pset_get(zone_t *); 641 extern void zone_pset_set(zone_t *, psetid_t); 642 643 /* 644 * Get the number of cpus/online-cpus visible from the given zone. 645 */ 646 extern int zone_ncpus_get(zone_t *); 647 extern int zone_ncpus_online_get(zone_t *); 648 649 /* 650 * Returns true if the named pool/dataset is visible in the current zone. 651 */ 652 extern int zone_dataset_visible(const char *, int *); 653 654 /* 655 * zone version of kadmin() 656 */ 657 extern int zone_kadmin(int, int, const char *, cred_t *); 658 extern void zone_shutdown_global(void); 659 660 extern void mount_in_progress(void); 661 extern void mount_completed(void); 662 663 extern int zone_walk(int (*)(zone_t *, void *), void *); 664 665 extern rctl_hndl_t rc_zone_locked_mem; 666 extern rctl_hndl_t rc_zone_max_swap; 667 668 #endif /* _KERNEL */ 669 670 #ifdef __cplusplus 671 } 672 #endif 673 674 #endif /* _SYS_ZONE_H */ 675