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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_ZONE_H 27 #define _SYS_ZONE_H 28 29 #include <sys/types.h> 30 #include <sys/mutex.h> 31 #include <sys/param.h> 32 #include <sys/rctl.h> 33 #include <sys/ipc_rctl.h> 34 #include <sys/pset.h> 35 #include <sys/tsol/label.h> 36 #include <sys/cred.h> 37 #include <sys/netstack.h> 38 #include <sys/uadmin.h> 39 #include <sys/ksynch.h> 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /* 46 * NOTE 47 * 48 * The contents of this file are private to the implementation of 49 * Solaris and are subject to change at any time without notice. 50 * Applications and drivers using these interfaces may fail to 51 * run on future releases. 52 */ 53 54 /* Available both in kernel and for user space */ 55 56 /* zone id restrictions and special ids */ 57 #define MAX_ZONEID 9999 58 #define MIN_USERZONEID 1 /* lowest user-creatable zone ID */ 59 #define MIN_ZONEID 0 /* minimum zone ID on system */ 60 #define GLOBAL_ZONEID 0 61 #define ZONEID_WIDTH 4 /* for printf */ 62 63 /* 64 * Special zoneid_t token to refer to all zones. 65 */ 66 #define ALL_ZONES (-1) 67 68 /* system call subcodes */ 69 #define ZONE_CREATE 0 70 #define ZONE_DESTROY 1 71 #define ZONE_GETATTR 2 72 #define ZONE_ENTER 3 73 #define ZONE_LIST 4 74 #define ZONE_SHUTDOWN 5 75 #define ZONE_LOOKUP 6 76 #define ZONE_BOOT 7 77 #define ZONE_VERSION 8 78 #define ZONE_SETATTR 9 79 #define ZONE_ADD_DATALINK 10 80 #define ZONE_DEL_DATALINK 11 81 #define ZONE_CHECK_DATALINK 12 82 #define ZONE_LIST_DATALINK 13 83 84 /* zone attributes */ 85 #define ZONE_ATTR_ROOT 1 86 #define ZONE_ATTR_NAME 2 87 #define ZONE_ATTR_STATUS 3 88 #define ZONE_ATTR_PRIVSET 4 89 #define ZONE_ATTR_UNIQID 5 90 #define ZONE_ATTR_POOLID 6 91 #define ZONE_ATTR_INITPID 7 92 #define ZONE_ATTR_SLBL 8 93 #define ZONE_ATTR_INITNAME 9 94 #define ZONE_ATTR_BOOTARGS 10 95 #define ZONE_ATTR_BRAND 11 96 #define ZONE_ATTR_PHYS_MCAP 12 97 #define ZONE_ATTR_SCHED_CLASS 13 98 #define ZONE_ATTR_FLAGS 14 99 #define ZONE_ATTR_HOSTID 15 100 101 /* Start of the brand-specific attribute namespace */ 102 #define ZONE_ATTR_BRAND_ATTRS 32768 103 104 #define ZONE_EVENT_CHANNEL "com.sun:zones:status" 105 #define ZONE_EVENT_STATUS_CLASS "status" 106 #define ZONE_EVENT_STATUS_SUBCLASS "change" 107 108 #define ZONE_EVENT_UNINITIALIZED "uninitialized" 109 #define ZONE_EVENT_INITIALIZED "initialized" 110 #define ZONE_EVENT_READY "ready" 111 #define ZONE_EVENT_RUNNING "running" 112 #define ZONE_EVENT_SHUTTING_DOWN "shutting_down" 113 114 #define ZONE_CB_NAME "zonename" 115 #define ZONE_CB_NEWSTATE "newstate" 116 #define ZONE_CB_OLDSTATE "oldstate" 117 #define ZONE_CB_TIMESTAMP "when" 118 #define ZONE_CB_ZONEID "zoneid" 119 120 /* 121 * Exit values that may be returned by scripts or programs invoked by various 122 * zone commands. 123 * 124 * These are defined as: 125 * 126 * ZONE_SUBPROC_OK 127 * =============== 128 * The subprocess completed successfully. 129 * 130 * ZONE_SUBPROC_USAGE 131 * ================== 132 * The subprocess failed with a usage message, or a usage message should 133 * be output in its behalf. 134 * 135 * ZONE_SUBPROC_NOTCOMPLETE 136 * ======================== 137 * The subprocess did not complete, but the actions performed by the 138 * subprocess require no recovery actions by the user. 139 * 140 * For example, if the subprocess were called by "zoneadm install," the 141 * installation of the zone did not succeed but the user need not perform 142 * a "zoneadm uninstall" before attempting another install. 143 * 144 * ZONE_SUBPROC_FATAL 145 * ================== 146 * The subprocess failed in a fatal manner, usually one that will require 147 * some type of recovery action by the user. 148 * 149 * For example, if the subprocess were called by "zoneadm install," the 150 * installation of the zone did not succeed and the user will need to 151 * perform a "zoneadm uninstall" before another install attempt is 152 * possible. 153 * 154 * The non-success exit values are large to avoid accidental collision 155 * with values used internally by some commands (e.g. "Z_ERR" and 156 * "Z_USAGE" as used by zoneadm.) 157 */ 158 #define ZONE_SUBPROC_OK 0 159 #define ZONE_SUBPROC_USAGE 253 160 #define ZONE_SUBPROC_NOTCOMPLETE 254 161 #define ZONE_SUBPROC_FATAL 255 162 163 #ifdef _SYSCALL32 164 typedef struct { 165 caddr32_t zone_name; 166 caddr32_t zone_root; 167 caddr32_t zone_privs; 168 size32_t zone_privssz; 169 caddr32_t rctlbuf; 170 size32_t rctlbufsz; 171 caddr32_t extended_error; 172 caddr32_t zfsbuf; 173 size32_t zfsbufsz; 174 int match; /* match level */ 175 uint32_t doi; /* DOI for label */ 176 caddr32_t label; /* label associated with zone */ 177 int flags; 178 } zone_def32; 179 #endif 180 typedef struct { 181 const char *zone_name; 182 const char *zone_root; 183 const struct priv_set *zone_privs; 184 size_t zone_privssz; 185 const char *rctlbuf; 186 size_t rctlbufsz; 187 int *extended_error; 188 const char *zfsbuf; 189 size_t zfsbufsz; 190 int match; /* match level */ 191 uint32_t doi; /* DOI for label */ 192 const bslabel_t *label; /* label associated with zone */ 193 int flags; 194 } zone_def; 195 196 /* extended error information */ 197 #define ZE_UNKNOWN 0 /* No extended error info */ 198 #define ZE_CHROOTED 1 /* tried to zone_create from chroot */ 199 #define ZE_AREMOUNTS 2 /* there are mounts within the zone */ 200 #define ZE_LABELINUSE 3 /* label is already in use by some other zone */ 201 202 /* zone_status */ 203 typedef enum { 204 ZONE_IS_UNINITIALIZED = 0, 205 ZONE_IS_INITIALIZED, 206 ZONE_IS_READY, 207 ZONE_IS_BOOTING, 208 ZONE_IS_RUNNING, 209 ZONE_IS_SHUTTING_DOWN, 210 ZONE_IS_EMPTY, 211 ZONE_IS_DOWN, 212 ZONE_IS_DYING, 213 ZONE_IS_DEAD 214 } zone_status_t; 215 #define ZONE_MIN_STATE ZONE_IS_UNINITIALIZED 216 #define ZONE_MAX_STATE ZONE_IS_DEAD 217 218 /* 219 * Valid commands which may be issued by zoneadm to zoneadmd. The kernel also 220 * communicates with zoneadmd, but only uses Z_REBOOT and Z_HALT. 221 */ 222 typedef enum zone_cmd { 223 Z_READY, Z_BOOT, Z_FORCEBOOT, Z_REBOOT, Z_HALT, Z_NOTE_UNINSTALLING, 224 Z_MOUNT, Z_FORCEMOUNT, Z_UNMOUNT 225 } zone_cmd_t; 226 227 /* 228 * The structure of a request to zoneadmd. 229 */ 230 typedef struct zone_cmd_arg { 231 uint64_t uniqid; /* unique "generation number" */ 232 zone_cmd_t cmd; /* requested action */ 233 uint32_t _pad; /* need consistent 32/64 bit alignmt */ 234 char locale[MAXPATHLEN]; /* locale in which to render messages */ 235 char bootbuf[BOOTARGS_MAX]; /* arguments passed to zone_boot() */ 236 } zone_cmd_arg_t; 237 238 /* 239 * Structure of zoneadmd's response to a request. A NULL return value means 240 * the caller should attempt to restart zoneadmd and retry. 241 */ 242 typedef struct zone_cmd_rval { 243 int rval; /* return value of request */ 244 char errbuf[1]; /* variable-sized buffer containing error messages */ 245 } zone_cmd_rval_t; 246 247 /* 248 * The zone support infrastructure uses the zone name as a component 249 * of unix domain (AF_UNIX) sockets, which are limited to 108 characters 250 * in length, so ZONENAME_MAX is limited by that. 251 */ 252 #define ZONENAME_MAX 64 253 254 #define GLOBAL_ZONENAME "global" 255 256 /* 257 * Extended Regular expression (see regex(5)) which matches all valid zone 258 * names. 259 */ 260 #define ZONENAME_REGEXP "[a-zA-Z0-9][-_.a-zA-Z0-9]{0,62}" 261 262 /* 263 * Where the zones support infrastructure places temporary files. 264 */ 265 #define ZONES_TMPDIR "/var/run/zones" 266 267 /* 268 * The path to the door used by clients to communicate with zoneadmd. 269 */ 270 #define ZONE_DOOR_PATH ZONES_TMPDIR "/%s.zoneadmd_door" 271 272 /* zone_flags */ 273 #define ZF_HASHED_LABEL 0x2 /* zone has a unique label */ 274 #define ZF_IS_SCRATCH 0x4 /* scratch zone */ 275 #define ZF_NET_EXCL 0x8 /* Zone has an exclusive IP stack */ 276 277 /* zone_create flags */ 278 #define ZCF_NET_EXCL 0x1 /* Create a zone with exclusive IP */ 279 280 #ifdef _KERNEL 281 /* 282 * We need to protect the definition of 'list_t' from userland applications and 283 * libraries which may be defining ther own versions. 284 */ 285 #include <sys/list.h> 286 287 #define GLOBAL_ZONEUNIQID 0 /* uniqid of the global zone */ 288 289 struct pool; 290 struct brand; 291 292 /* 293 * Structure to record list of ZFS datasets exported to a zone. 294 */ 295 typedef struct zone_dataset { 296 char *zd_dataset; 297 list_node_t zd_linkage; 298 } zone_dataset_t; 299 300 /* 301 * structure for zone kstats 302 */ 303 typedef struct zone_kstat { 304 kstat_named_t zk_zonename; 305 kstat_named_t zk_usage; 306 kstat_named_t zk_value; 307 } zone_kstat_t; 308 309 struct cpucap; 310 311 typedef struct zone { 312 /* 313 * zone_name is never modified once set. 314 */ 315 char *zone_name; /* zone's configuration name */ 316 /* 317 * zone_nodename and zone_domain are never freed once allocated. 318 */ 319 char *zone_nodename; /* utsname.nodename equivalent */ 320 char *zone_domain; /* srpc_domain equivalent */ 321 /* 322 * zone_hostid is used for per-zone hostid emulation. 323 * Currently it isn't modified after it's set (so no locks protect 324 * accesses), but that might have to change when we allow 325 * administrators to change running zones' properties. 326 * 327 * The global zone's zone_hostid must always be HW_INVALID_HOSTID so 328 * that zone_get_hostid() will function correctly. 329 */ 330 uint32_t zone_hostid; /* zone's hostid, HW_INVALID_HOSTID */ 331 /* if not emulated */ 332 /* 333 * zone_lock protects the following fields of a zone_t: 334 * zone_ref 335 * zone_cred_ref 336 * zone_ntasks 337 * zone_flags 338 * zone_zsd 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 } zone_t; 445 446 /* 447 * Special value of zone_psetid to indicate that pools are disabled. 448 */ 449 #define ZONE_PS_INVAL PS_MYID 450 451 452 extern zone_t zone0; 453 extern zone_t *global_zone; 454 extern uint_t maxzones; 455 extern rctl_hndl_t rc_zone_nlwps; 456 457 extern long zone(int, void *, void *, void *, void *); 458 extern void zone_zsd_init(void); 459 extern void zone_init(void); 460 extern void zone_hold(zone_t *); 461 extern void zone_rele(zone_t *); 462 extern void zone_cred_hold(zone_t *); 463 extern void zone_cred_rele(zone_t *); 464 extern void zone_task_hold(zone_t *); 465 extern void zone_task_rele(zone_t *); 466 extern zone_t *zone_find_by_id(zoneid_t); 467 extern zone_t *zone_find_by_label(const ts_label_t *); 468 extern zone_t *zone_find_by_name(char *); 469 extern zone_t *zone_find_by_any_path(const char *, boolean_t); 470 extern zone_t *zone_find_by_path(const char *); 471 extern zoneid_t getzoneid(void); 472 extern zone_t *zone_find_by_id_nolock(zoneid_t); 473 extern int zone_datalink_walk(zoneid_t, int (*)(datalink_id_t, void *), void *); 474 extern int zone_check_datalink(zoneid_t *, datalink_id_t); 475 476 /* 477 * Zone-specific data (ZSD) APIs 478 */ 479 /* 480 * The following is what code should be initializing its zone_key_t to if it 481 * calls zone_getspecific() without necessarily knowing that zone_key_create() 482 * has been called on the key. 483 */ 484 #define ZONE_KEY_UNINITIALIZED 0 485 486 typedef uint_t zone_key_t; 487 488 extern void zone_key_create(zone_key_t *, void *(*)(zoneid_t), 489 void (*)(zoneid_t, void *), void (*)(zoneid_t, void *)); 490 extern int zone_key_delete(zone_key_t); 491 extern void *zone_getspecific(zone_key_t, zone_t *); 492 extern int zone_setspecific(zone_key_t, zone_t *, const void *); 493 494 /* 495 * The definition of a zsd_entry is truly private to zone.c and is only 496 * placed here so it can be shared with mdb. 497 * 498 * State maintained for each zone times each registered key, which tracks 499 * the state of the create, shutdown and destroy callbacks. 500 * 501 * zsd_flags is used to keep track of pending actions to avoid holding locks 502 * when calling the create/shutdown/destroy callbacks, since doing so 503 * could lead to deadlocks. 504 */ 505 struct zsd_entry { 506 zone_key_t zsd_key; /* Key used to lookup value */ 507 void *zsd_data; /* Caller-managed value */ 508 /* 509 * Callbacks to be executed when a zone is created, shutdown, and 510 * destroyed, respectively. 511 */ 512 void *(*zsd_create)(zoneid_t); 513 void (*zsd_shutdown)(zoneid_t, void *); 514 void (*zsd_destroy)(zoneid_t, void *); 515 list_node_t zsd_linkage; 516 uint16_t zsd_flags; /* See below */ 517 kcondvar_t zsd_cv; 518 }; 519 520 /* 521 * zsd_flags 522 */ 523 #define ZSD_CREATE_NEEDED 0x0001 524 #define ZSD_CREATE_INPROGRESS 0x0002 525 #define ZSD_CREATE_COMPLETED 0x0004 526 #define ZSD_SHUTDOWN_NEEDED 0x0010 527 #define ZSD_SHUTDOWN_INPROGRESS 0x0020 528 #define ZSD_SHUTDOWN_COMPLETED 0x0040 529 #define ZSD_DESTROY_NEEDED 0x0100 530 #define ZSD_DESTROY_INPROGRESS 0x0200 531 #define ZSD_DESTROY_COMPLETED 0x0400 532 533 #define ZSD_CREATE_ALL \ 534 (ZSD_CREATE_NEEDED|ZSD_CREATE_INPROGRESS|ZSD_CREATE_COMPLETED) 535 #define ZSD_SHUTDOWN_ALL \ 536 (ZSD_SHUTDOWN_NEEDED|ZSD_SHUTDOWN_INPROGRESS|ZSD_SHUTDOWN_COMPLETED) 537 #define ZSD_DESTROY_ALL \ 538 (ZSD_DESTROY_NEEDED|ZSD_DESTROY_INPROGRESS|ZSD_DESTROY_COMPLETED) 539 540 #define ZSD_ALL_INPROGRESS \ 541 (ZSD_CREATE_INPROGRESS|ZSD_SHUTDOWN_INPROGRESS|ZSD_DESTROY_INPROGRESS) 542 543 /* 544 * Macros to help with zone visibility restrictions. 545 */ 546 547 /* 548 * Is process in the global zone? 549 */ 550 #define INGLOBALZONE(p) \ 551 ((p)->p_zone == global_zone) 552 553 /* 554 * Can process view objects in given zone? 555 */ 556 #define HASZONEACCESS(p, zoneid) \ 557 ((p)->p_zone->zone_id == (zoneid) || INGLOBALZONE(p)) 558 559 /* 560 * Convenience macro to see if a resolved path is visible from within a 561 * given zone. 562 * 563 * The basic idea is that the first (zone_rootpathlen - 1) bytes of the 564 * two strings must be equal. Since the rootpathlen has a trailing '/', 565 * we want to skip everything in the path up to (but not including) the 566 * trailing '/'. 567 */ 568 #define ZONE_PATH_VISIBLE(path, zone) \ 569 (strncmp((path), (zone)->zone_rootpath, \ 570 (zone)->zone_rootpathlen - 1) == 0) 571 572 /* 573 * Convenience macro to go from the global view of a path to that seen 574 * from within said zone. It is the responsibility of the caller to 575 * ensure that the path is a resolved one (ie, no '..'s or '.'s), and is 576 * in fact visible from within the zone. 577 */ 578 #define ZONE_PATH_TRANSLATE(path, zone) \ 579 (ASSERT(ZONE_PATH_VISIBLE(path, zone)), \ 580 (path) + (zone)->zone_rootpathlen - 2) 581 582 /* 583 * Special processes visible in all zones. 584 */ 585 #define ZONE_SPECIALPID(x) ((x) == 0 || (x) == 1) 586 587 /* 588 * Zone-safe version of thread_create() to be used when the caller wants to 589 * create a kernel thread to run within the current zone's context. 590 */ 591 extern kthread_t *zthread_create(caddr_t, size_t, void (*)(), void *, size_t, 592 pri_t); 593 extern void zthread_exit(void); 594 595 /* 596 * Functions for an external observer to register interest in a zone's status 597 * change. Observers will be woken up when the zone status equals the status 598 * argument passed in (in the case of zone_status_timedwait, the function may 599 * also return because of a timeout; zone_status_wait_sig may return early due 600 * to a signal being delivered; zone_status_timedwait_sig may return for any of 601 * the above reasons). 602 * 603 * Otherwise these behave identically to cv_timedwait(), cv_wait(), and 604 * cv_wait_sig() respectively. 605 */ 606 extern clock_t zone_status_timedwait(zone_t *, clock_t, zone_status_t); 607 extern clock_t zone_status_timedwait_sig(zone_t *, clock_t, zone_status_t); 608 extern void zone_status_wait(zone_t *, zone_status_t); 609 extern int zone_status_wait_sig(zone_t *, zone_status_t); 610 611 /* 612 * Get the status of the zone (at the time it was called). The state may 613 * have progressed by the time it is returned. 614 */ 615 extern zone_status_t zone_status_get(zone_t *); 616 617 /* 618 * Safely get the hostid of the specified zone (defaults to machine's hostid 619 * if the specified zone doesn't emulate a hostid). Passing NULL retrieves 620 * the global zone's (i.e., physical system's) hostid. 621 */ 622 extern uint32_t zone_get_hostid(zone_t *); 623 624 /* 625 * Get the "kcred" credentials corresponding to the given zone. 626 */ 627 extern struct cred *zone_get_kcred(zoneid_t); 628 629 /* 630 * Get/set the pool the zone is currently bound to. 631 */ 632 extern struct pool *zone_pool_get(zone_t *); 633 extern void zone_pool_set(zone_t *, struct pool *); 634 635 /* 636 * Get/set the pset the zone is currently using. 637 */ 638 extern psetid_t zone_pset_get(zone_t *); 639 extern void zone_pset_set(zone_t *, psetid_t); 640 641 /* 642 * Get the number of cpus/online-cpus visible from the given zone. 643 */ 644 extern int zone_ncpus_get(zone_t *); 645 extern int zone_ncpus_online_get(zone_t *); 646 647 /* 648 * Returns true if the named pool/dataset is visible in the current zone. 649 */ 650 extern int zone_dataset_visible(const char *, int *); 651 652 /* 653 * zone version of kadmin() 654 */ 655 extern int zone_kadmin(int, int, const char *, cred_t *); 656 extern void zone_shutdown_global(void); 657 658 extern void mount_in_progress(void); 659 extern void mount_completed(void); 660 661 extern int zone_walk(int (*)(zone_t *, void *), void *); 662 663 extern rctl_hndl_t rc_zone_locked_mem; 664 extern rctl_hndl_t rc_zone_max_swap; 665 666 #endif /* _KERNEL */ 667 668 #ifdef __cplusplus 669 } 670 #endif 671 672 #endif /* _SYS_ZONE_H */ 673