17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 545916cd2Sjpk * Common Development and Distribution License (the "License"). 645916cd2Sjpk * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 2197eda132Sraf 227c478bd9Sstevel@tonic-gate /* 236f70df68Sdp * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* 307c478bd9Sstevel@tonic-gate * Zones 317c478bd9Sstevel@tonic-gate * 327c478bd9Sstevel@tonic-gate * A zone is a named collection of processes, namespace constraints, 337c478bd9Sstevel@tonic-gate * and other system resources which comprise a secure and manageable 347c478bd9Sstevel@tonic-gate * application containment facility. 357c478bd9Sstevel@tonic-gate * 367c478bd9Sstevel@tonic-gate * Zones (represented by the reference counted zone_t) are tracked in 377c478bd9Sstevel@tonic-gate * the kernel in the zonehash. Elsewhere in the kernel, Zone IDs 387c478bd9Sstevel@tonic-gate * (zoneid_t) are used to track zone association. Zone IDs are 397c478bd9Sstevel@tonic-gate * dynamically generated when the zone is created; if a persistent 407c478bd9Sstevel@tonic-gate * identifier is needed (core files, accounting logs, audit trail, 417c478bd9Sstevel@tonic-gate * etc.), the zone name should be used. 427c478bd9Sstevel@tonic-gate * 437c478bd9Sstevel@tonic-gate * 447c478bd9Sstevel@tonic-gate * Global Zone: 457c478bd9Sstevel@tonic-gate * 467c478bd9Sstevel@tonic-gate * The global zone (zoneid 0) is automatically associated with all 477c478bd9Sstevel@tonic-gate * system resources that have not been bound to a user-created zone. 487c478bd9Sstevel@tonic-gate * This means that even systems where zones are not in active use 497c478bd9Sstevel@tonic-gate * have a global zone, and all processes, mounts, etc. are 507c478bd9Sstevel@tonic-gate * associated with that zone. The global zone is generally 517c478bd9Sstevel@tonic-gate * unconstrained in terms of privileges and access, though the usual 527c478bd9Sstevel@tonic-gate * credential and privilege based restrictions apply. 537c478bd9Sstevel@tonic-gate * 547c478bd9Sstevel@tonic-gate * 557c478bd9Sstevel@tonic-gate * Zone States: 567c478bd9Sstevel@tonic-gate * 577c478bd9Sstevel@tonic-gate * The states in which a zone may be in and the transitions are as 587c478bd9Sstevel@tonic-gate * follows: 597c478bd9Sstevel@tonic-gate * 607c478bd9Sstevel@tonic-gate * ZONE_IS_UNINITIALIZED: primordial state for a zone. The partially 617c478bd9Sstevel@tonic-gate * initialized zone is added to the list of active zones on the system but 627c478bd9Sstevel@tonic-gate * isn't accessible. 637c478bd9Sstevel@tonic-gate * 647c478bd9Sstevel@tonic-gate * ZONE_IS_READY: zsched (the kernel dummy process for a zone) is 657c478bd9Sstevel@tonic-gate * ready. The zone is made visible after the ZSD constructor callbacks are 667c478bd9Sstevel@tonic-gate * executed. A zone remains in this state until it transitions into 677c478bd9Sstevel@tonic-gate * the ZONE_IS_BOOTING state as a result of a call to zone_boot(). 687c478bd9Sstevel@tonic-gate * 697c478bd9Sstevel@tonic-gate * ZONE_IS_BOOTING: in this shortlived-state, zsched attempts to start 707c478bd9Sstevel@tonic-gate * init. Should that fail, the zone proceeds to the ZONE_IS_SHUTTING_DOWN 717c478bd9Sstevel@tonic-gate * state. 727c478bd9Sstevel@tonic-gate * 737c478bd9Sstevel@tonic-gate * ZONE_IS_RUNNING: The zone is open for business: zsched has 747c478bd9Sstevel@tonic-gate * successfully started init. A zone remains in this state until 757c478bd9Sstevel@tonic-gate * zone_shutdown() is called. 767c478bd9Sstevel@tonic-gate * 777c478bd9Sstevel@tonic-gate * ZONE_IS_SHUTTING_DOWN: zone_shutdown() has been called, the system is 787c478bd9Sstevel@tonic-gate * killing all processes running in the zone. The zone remains 797c478bd9Sstevel@tonic-gate * in this state until there are no more user processes running in the zone. 807c478bd9Sstevel@tonic-gate * zone_create(), zone_enter(), and zone_destroy() on this zone will fail. 817c478bd9Sstevel@tonic-gate * Since zone_shutdown() is restartable, it may be called successfully 827c478bd9Sstevel@tonic-gate * multiple times for the same zone_t. Setting of the zone's state to 837c478bd9Sstevel@tonic-gate * ZONE_IS_SHUTTING_DOWN is synchronized with mounts, so VOP_MOUNT() may check 847c478bd9Sstevel@tonic-gate * the zone's status without worrying about it being a moving target. 857c478bd9Sstevel@tonic-gate * 867c478bd9Sstevel@tonic-gate * ZONE_IS_EMPTY: zone_shutdown() has been called, and there 877c478bd9Sstevel@tonic-gate * are no more user processes in the zone. The zone remains in this 887c478bd9Sstevel@tonic-gate * state until there are no more kernel threads associated with the 897c478bd9Sstevel@tonic-gate * zone. zone_create(), zone_enter(), and zone_destroy() on this zone will 907c478bd9Sstevel@tonic-gate * fail. 917c478bd9Sstevel@tonic-gate * 927c478bd9Sstevel@tonic-gate * ZONE_IS_DOWN: All kernel threads doing work on behalf of the zone 937c478bd9Sstevel@tonic-gate * have exited. zone_shutdown() returns. Henceforth it is not possible to 947c478bd9Sstevel@tonic-gate * join the zone or create kernel threads therein. 957c478bd9Sstevel@tonic-gate * 967c478bd9Sstevel@tonic-gate * ZONE_IS_DYING: zone_destroy() has been called on the zone; zone 977c478bd9Sstevel@tonic-gate * remains in this state until zsched exits. Calls to zone_find_by_*() 987c478bd9Sstevel@tonic-gate * return NULL from now on. 997c478bd9Sstevel@tonic-gate * 1007c478bd9Sstevel@tonic-gate * ZONE_IS_DEAD: zsched has exited (zone_ntasks == 0). There are no 1017c478bd9Sstevel@tonic-gate * processes or threads doing work on behalf of the zone. The zone is 1027c478bd9Sstevel@tonic-gate * removed from the list of active zones. zone_destroy() returns, and 1037c478bd9Sstevel@tonic-gate * the zone can be recreated. 1047c478bd9Sstevel@tonic-gate * 1057c478bd9Sstevel@tonic-gate * ZONE_IS_FREE (internal state): zone_ref goes to 0, ZSD destructor 1067c478bd9Sstevel@tonic-gate * callbacks are executed, and all memory associated with the zone is 1077c478bd9Sstevel@tonic-gate * freed. 1087c478bd9Sstevel@tonic-gate * 1097c478bd9Sstevel@tonic-gate * Threads can wait for the zone to enter a requested state by using 1107c478bd9Sstevel@tonic-gate * zone_status_wait() or zone_status_timedwait() with the desired 1117c478bd9Sstevel@tonic-gate * state passed in as an argument. Zone state transitions are 1127c478bd9Sstevel@tonic-gate * uni-directional; it is not possible to move back to an earlier state. 1137c478bd9Sstevel@tonic-gate * 1147c478bd9Sstevel@tonic-gate * 1157c478bd9Sstevel@tonic-gate * Zone-Specific Data: 1167c478bd9Sstevel@tonic-gate * 1177c478bd9Sstevel@tonic-gate * Subsystems needing to maintain zone-specific data can store that 1187c478bd9Sstevel@tonic-gate * data using the ZSD mechanism. This provides a zone-specific data 1197c478bd9Sstevel@tonic-gate * store, similar to thread-specific data (see pthread_getspecific(3C) 1207c478bd9Sstevel@tonic-gate * or the TSD code in uts/common/disp/thread.c. Also, ZSD can be used 1217c478bd9Sstevel@tonic-gate * to register callbacks to be invoked when a zone is created, shut 1227c478bd9Sstevel@tonic-gate * down, or destroyed. This can be used to initialize zone-specific 1237c478bd9Sstevel@tonic-gate * data for new zones and to clean up when zones go away. 1247c478bd9Sstevel@tonic-gate * 1257c478bd9Sstevel@tonic-gate * 1267c478bd9Sstevel@tonic-gate * Data Structures: 1277c478bd9Sstevel@tonic-gate * 1287c478bd9Sstevel@tonic-gate * The per-zone structure (zone_t) is reference counted, and freed 1297c478bd9Sstevel@tonic-gate * when all references are released. zone_hold and zone_rele can be 1307c478bd9Sstevel@tonic-gate * used to adjust the reference count. In addition, reference counts 1317c478bd9Sstevel@tonic-gate * associated with the cred_t structure are tracked separately using 1327c478bd9Sstevel@tonic-gate * zone_cred_hold and zone_cred_rele. 1337c478bd9Sstevel@tonic-gate * 1347c478bd9Sstevel@tonic-gate * Pointers to active zone_t's are stored in two hash tables; one 1357c478bd9Sstevel@tonic-gate * for searching by id, the other for searching by name. Lookups 1367c478bd9Sstevel@tonic-gate * can be performed on either basis, using zone_find_by_id and 1377c478bd9Sstevel@tonic-gate * zone_find_by_name. Both return zone_t pointers with the zone 1387c478bd9Sstevel@tonic-gate * held, so zone_rele should be called when the pointer is no longer 1397c478bd9Sstevel@tonic-gate * needed. Zones can also be searched by path; zone_find_by_path 1407c478bd9Sstevel@tonic-gate * returns the zone with which a path name is associated (global 1417c478bd9Sstevel@tonic-gate * zone if the path is not within some other zone's file system 1427c478bd9Sstevel@tonic-gate * hierarchy). This currently requires iterating through each zone, 1437c478bd9Sstevel@tonic-gate * so it is slower than an id or name search via a hash table. 1447c478bd9Sstevel@tonic-gate * 1457c478bd9Sstevel@tonic-gate * 1467c478bd9Sstevel@tonic-gate * Locking: 1477c478bd9Sstevel@tonic-gate * 1487c478bd9Sstevel@tonic-gate * zonehash_lock: This is a top-level global lock used to protect the 1497c478bd9Sstevel@tonic-gate * zone hash tables and lists. Zones cannot be created or destroyed 1507c478bd9Sstevel@tonic-gate * while this lock is held. 1517c478bd9Sstevel@tonic-gate * zone_status_lock: This is a global lock protecting zone state. 1527c478bd9Sstevel@tonic-gate * Zones cannot change state while this lock is held. It also 1537c478bd9Sstevel@tonic-gate * protects the list of kernel threads associated with a zone. 1547c478bd9Sstevel@tonic-gate * zone_lock: This is a per-zone lock used to protect several fields of 1557c478bd9Sstevel@tonic-gate * the zone_t (see <sys/zone.h> for details). In addition, holding 1567c478bd9Sstevel@tonic-gate * this lock means that the zone cannot go away. 157*0209230bSgjelinek * zone_nlwps_lock: This is a per-zone lock used to protect the fields 158*0209230bSgjelinek * related to the zone.max-lwps rctl. 159*0209230bSgjelinek * zone_mem_lock: This is a per-zone lock used to protect the fields 160*0209230bSgjelinek * related to the zone.max-locked-memory and zone.max-swap rctls. 1617c478bd9Sstevel@tonic-gate * zsd_key_lock: This is a global lock protecting the key state for ZSD. 1627c478bd9Sstevel@tonic-gate * zone_deathrow_lock: This is a global lock protecting the "deathrow" 1637c478bd9Sstevel@tonic-gate * list (a list of zones in the ZONE_IS_DEAD state). 1647c478bd9Sstevel@tonic-gate * 1657c478bd9Sstevel@tonic-gate * Ordering requirements: 1667c478bd9Sstevel@tonic-gate * pool_lock --> cpu_lock --> zonehash_lock --> zone_status_lock --> 1677c478bd9Sstevel@tonic-gate * zone_lock --> zsd_key_lock --> pidlock --> p_lock 1687c478bd9Sstevel@tonic-gate * 169*0209230bSgjelinek * When taking zone_mem_lock or zone_nlwps_lock, the lock ordering is: 170*0209230bSgjelinek * zonehash_lock --> a_lock --> pidlock --> p_lock --> zone_mem_lock 171*0209230bSgjelinek * zonehash_lock --> a_lock --> pidlock --> p_lock --> zone_mem_lock 172*0209230bSgjelinek * 1737c478bd9Sstevel@tonic-gate * Blocking memory allocations are permitted while holding any of the 1747c478bd9Sstevel@tonic-gate * zone locks. 1757c478bd9Sstevel@tonic-gate * 1767c478bd9Sstevel@tonic-gate * 1777c478bd9Sstevel@tonic-gate * System Call Interface: 1787c478bd9Sstevel@tonic-gate * 1797c478bd9Sstevel@tonic-gate * The zone subsystem can be managed and queried from user level with 1807c478bd9Sstevel@tonic-gate * the following system calls (all subcodes of the primary "zone" 1817c478bd9Sstevel@tonic-gate * system call): 1827c478bd9Sstevel@tonic-gate * - zone_create: creates a zone with selected attributes (name, 183fa9e4066Sahrens * root path, privileges, resource controls, ZFS datasets) 1847c478bd9Sstevel@tonic-gate * - zone_enter: allows the current process to enter a zone 1857c478bd9Sstevel@tonic-gate * - zone_getattr: reports attributes of a zone 1863f2f09c1Sdp * - zone_setattr: set attributes of a zone 1873f2f09c1Sdp * - zone_boot: set 'init' running for the zone 1887c478bd9Sstevel@tonic-gate * - zone_list: lists all zones active in the system 1897c478bd9Sstevel@tonic-gate * - zone_lookup: looks up zone id based on name 1907c478bd9Sstevel@tonic-gate * - zone_shutdown: initiates shutdown process (see states above) 1917c478bd9Sstevel@tonic-gate * - zone_destroy: completes shutdown process (see states above) 1927c478bd9Sstevel@tonic-gate * 1937c478bd9Sstevel@tonic-gate */ 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate #include <sys/priv_impl.h> 1967c478bd9Sstevel@tonic-gate #include <sys/cred.h> 1977c478bd9Sstevel@tonic-gate #include <c2/audit.h> 1987c478bd9Sstevel@tonic-gate #include <sys/debug.h> 1997c478bd9Sstevel@tonic-gate #include <sys/file.h> 2007c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 201*0209230bSgjelinek #include <sys/kstat.h> 2027c478bd9Sstevel@tonic-gate #include <sys/mutex.h> 20345916cd2Sjpk #include <sys/note.h> 2047c478bd9Sstevel@tonic-gate #include <sys/pathname.h> 2057c478bd9Sstevel@tonic-gate #include <sys/proc.h> 2067c478bd9Sstevel@tonic-gate #include <sys/project.h> 207cf8f45c7Sdstaff #include <sys/sysevent.h> 2087c478bd9Sstevel@tonic-gate #include <sys/task.h> 2097c478bd9Sstevel@tonic-gate #include <sys/systm.h> 2107c478bd9Sstevel@tonic-gate #include <sys/types.h> 2117c478bd9Sstevel@tonic-gate #include <sys/utsname.h> 2127c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 2137c478bd9Sstevel@tonic-gate #include <sys/vfs.h> 2147c478bd9Sstevel@tonic-gate #include <sys/systeminfo.h> 2157c478bd9Sstevel@tonic-gate #include <sys/policy.h> 2167c478bd9Sstevel@tonic-gate #include <sys/cred_impl.h> 2177c478bd9Sstevel@tonic-gate #include <sys/contract_impl.h> 2187c478bd9Sstevel@tonic-gate #include <sys/contract/process_impl.h> 2197c478bd9Sstevel@tonic-gate #include <sys/class.h> 2207c478bd9Sstevel@tonic-gate #include <sys/pool.h> 2217c478bd9Sstevel@tonic-gate #include <sys/pool_pset.h> 2227c478bd9Sstevel@tonic-gate #include <sys/pset.h> 2237c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 2247c478bd9Sstevel@tonic-gate #include <sys/callb.h> 2257c478bd9Sstevel@tonic-gate #include <sys/vmparam.h> 2267c478bd9Sstevel@tonic-gate #include <sys/corectl.h> 227824c205fSml #include <sys/ipc_impl.h> 2287c478bd9Sstevel@tonic-gate 2297c478bd9Sstevel@tonic-gate #include <sys/door.h> 2307c478bd9Sstevel@tonic-gate #include <sys/cpuvar.h> 2317c478bd9Sstevel@tonic-gate 2327c478bd9Sstevel@tonic-gate #include <sys/uadmin.h> 2337c478bd9Sstevel@tonic-gate #include <sys/session.h> 2347c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 2357c478bd9Sstevel@tonic-gate #include <sys/modhash.h> 2363f2f09c1Sdp #include <sys/sunddi.h> 2377c478bd9Sstevel@tonic-gate #include <sys/nvpair.h> 2387c478bd9Sstevel@tonic-gate #include <sys/rctl.h> 2397c478bd9Sstevel@tonic-gate #include <sys/fss.h> 2409acbbeafSnn #include <sys/brand.h> 2417c478bd9Sstevel@tonic-gate #include <sys/zone.h> 24245916cd2Sjpk #include <sys/tsol/label.h> 2437c478bd9Sstevel@tonic-gate 244*0209230bSgjelinek #include <vm/seg.h> 245*0209230bSgjelinek 2467c478bd9Sstevel@tonic-gate /* 2477c478bd9Sstevel@tonic-gate * cv used to signal that all references to the zone have been released. This 2487c478bd9Sstevel@tonic-gate * needs to be global since there may be multiple waiters, and the first to 2497c478bd9Sstevel@tonic-gate * wake up will free the zone_t, hence we cannot use zone->zone_cv. 2507c478bd9Sstevel@tonic-gate */ 2517c478bd9Sstevel@tonic-gate static kcondvar_t zone_destroy_cv; 2527c478bd9Sstevel@tonic-gate /* 2537c478bd9Sstevel@tonic-gate * Lock used to serialize access to zone_cv. This could have been per-zone, 2547c478bd9Sstevel@tonic-gate * but then we'd need another lock for zone_destroy_cv, and why bother? 2557c478bd9Sstevel@tonic-gate */ 2567c478bd9Sstevel@tonic-gate static kmutex_t zone_status_lock; 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate /* 2597c478bd9Sstevel@tonic-gate * ZSD-related global variables. 2607c478bd9Sstevel@tonic-gate */ 2617c478bd9Sstevel@tonic-gate static kmutex_t zsd_key_lock; /* protects the following two */ 2627c478bd9Sstevel@tonic-gate /* 2637c478bd9Sstevel@tonic-gate * The next caller of zone_key_create() will be assigned a key of ++zsd_keyval. 2647c478bd9Sstevel@tonic-gate */ 2657c478bd9Sstevel@tonic-gate static zone_key_t zsd_keyval = 0; 2667c478bd9Sstevel@tonic-gate /* 2677c478bd9Sstevel@tonic-gate * Global list of registered keys. We use this when a new zone is created. 2687c478bd9Sstevel@tonic-gate */ 2697c478bd9Sstevel@tonic-gate static list_t zsd_registered_keys; 2707c478bd9Sstevel@tonic-gate 2717c478bd9Sstevel@tonic-gate int zone_hash_size = 256; 27245916cd2Sjpk static mod_hash_t *zonehashbyname, *zonehashbyid, *zonehashbylabel; 2737c478bd9Sstevel@tonic-gate static kmutex_t zonehash_lock; 2747c478bd9Sstevel@tonic-gate static uint_t zonecount; 2757c478bd9Sstevel@tonic-gate static id_space_t *zoneid_space; 2767c478bd9Sstevel@tonic-gate 2777c478bd9Sstevel@tonic-gate /* 2787c478bd9Sstevel@tonic-gate * The global zone (aka zone0) is the all-seeing, all-knowing zone in which the 2797c478bd9Sstevel@tonic-gate * kernel proper runs, and which manages all other zones. 2807c478bd9Sstevel@tonic-gate * 2817c478bd9Sstevel@tonic-gate * Although not declared as static, the variable "zone0" should not be used 2827c478bd9Sstevel@tonic-gate * except for by code that needs to reference the global zone early on in boot, 2837c478bd9Sstevel@tonic-gate * before it is fully initialized. All other consumers should use 2847c478bd9Sstevel@tonic-gate * 'global_zone'. 2857c478bd9Sstevel@tonic-gate */ 2867c478bd9Sstevel@tonic-gate zone_t zone0; 2877c478bd9Sstevel@tonic-gate zone_t *global_zone = NULL; /* Set when the global zone is initialized */ 2887c478bd9Sstevel@tonic-gate 2897c478bd9Sstevel@tonic-gate /* 2907c478bd9Sstevel@tonic-gate * List of active zones, protected by zonehash_lock. 2917c478bd9Sstevel@tonic-gate */ 2927c478bd9Sstevel@tonic-gate static list_t zone_active; 2937c478bd9Sstevel@tonic-gate 2947c478bd9Sstevel@tonic-gate /* 2957c478bd9Sstevel@tonic-gate * List of destroyed zones that still have outstanding cred references. 2967c478bd9Sstevel@tonic-gate * Used for debugging. Uses a separate lock to avoid lock ordering 2977c478bd9Sstevel@tonic-gate * problems in zone_free. 2987c478bd9Sstevel@tonic-gate */ 2997c478bd9Sstevel@tonic-gate static list_t zone_deathrow; 3007c478bd9Sstevel@tonic-gate static kmutex_t zone_deathrow_lock; 3017c478bd9Sstevel@tonic-gate 3027c478bd9Sstevel@tonic-gate /* number of zones is limited by virtual interface limit in IP */ 3037c478bd9Sstevel@tonic-gate uint_t maxzones = 8192; 3047c478bd9Sstevel@tonic-gate 305cf8f45c7Sdstaff /* Event channel to sent zone state change notifications */ 306cf8f45c7Sdstaff evchan_t *zone_event_chan; 307cf8f45c7Sdstaff 308cf8f45c7Sdstaff /* 309cf8f45c7Sdstaff * This table holds the mapping from kernel zone states to 310cf8f45c7Sdstaff * states visible in the state notification API. 311cf8f45c7Sdstaff * The idea is that we only expose "obvious" states and 312cf8f45c7Sdstaff * do not expose states which are just implementation details. 313cf8f45c7Sdstaff */ 314cf8f45c7Sdstaff const char *zone_status_table[] = { 315cf8f45c7Sdstaff ZONE_EVENT_UNINITIALIZED, /* uninitialized */ 316cf8f45c7Sdstaff ZONE_EVENT_READY, /* ready */ 317cf8f45c7Sdstaff ZONE_EVENT_READY, /* booting */ 318cf8f45c7Sdstaff ZONE_EVENT_RUNNING, /* running */ 319cf8f45c7Sdstaff ZONE_EVENT_SHUTTING_DOWN, /* shutting_down */ 320cf8f45c7Sdstaff ZONE_EVENT_SHUTTING_DOWN, /* empty */ 321cf8f45c7Sdstaff ZONE_EVENT_SHUTTING_DOWN, /* down */ 322cf8f45c7Sdstaff ZONE_EVENT_SHUTTING_DOWN, /* dying */ 323cf8f45c7Sdstaff ZONE_EVENT_UNINITIALIZED, /* dead */ 324cf8f45c7Sdstaff }; 325cf8f45c7Sdstaff 3267c478bd9Sstevel@tonic-gate /* 3277c478bd9Sstevel@tonic-gate * This isn't static so lint doesn't complain. 3287c478bd9Sstevel@tonic-gate */ 3297c478bd9Sstevel@tonic-gate rctl_hndl_t rc_zone_cpu_shares; 330c6939658Ssl rctl_hndl_t rc_zone_locked_mem; 331*0209230bSgjelinek rctl_hndl_t rc_zone_max_swap; 3327c478bd9Sstevel@tonic-gate rctl_hndl_t rc_zone_nlwps; 333824c205fSml rctl_hndl_t rc_zone_shmmax; 334824c205fSml rctl_hndl_t rc_zone_shmmni; 335824c205fSml rctl_hndl_t rc_zone_semmni; 336824c205fSml rctl_hndl_t rc_zone_msgmni; 3377c478bd9Sstevel@tonic-gate /* 3387c478bd9Sstevel@tonic-gate * Synchronization primitives used to synchronize between mounts and zone 3397c478bd9Sstevel@tonic-gate * creation/destruction. 3407c478bd9Sstevel@tonic-gate */ 3417c478bd9Sstevel@tonic-gate static int mounts_in_progress; 3427c478bd9Sstevel@tonic-gate static kcondvar_t mount_cv; 3437c478bd9Sstevel@tonic-gate static kmutex_t mount_lock; 3447c478bd9Sstevel@tonic-gate 3453f2f09c1Sdp const char * const zone_default_initname = "/sbin/init"; 34645916cd2Sjpk static char * const zone_prefix = "/zone/"; 3477c478bd9Sstevel@tonic-gate static int zone_shutdown(zoneid_t zoneid); 3487c478bd9Sstevel@tonic-gate 349821c4a97Sdp /* 350821c4a97Sdp * Bump this number when you alter the zone syscall interfaces; this is 351821c4a97Sdp * because we need to have support for previous API versions in libc 352821c4a97Sdp * to support patching; libc calls into the kernel to determine this number. 353821c4a97Sdp * 354821c4a97Sdp * Version 1 of the API is the version originally shipped with Solaris 10 355821c4a97Sdp * Version 2 alters the zone_create system call in order to support more 356821c4a97Sdp * arguments by moving the args into a structure; and to do better 357821c4a97Sdp * error reporting when zone_create() fails. 358821c4a97Sdp * Version 3 alters the zone_create system call in order to support the 359821c4a97Sdp * import of ZFS datasets to zones. 36045916cd2Sjpk * Version 4 alters the zone_create system call in order to support 36145916cd2Sjpk * Trusted Extensions. 3623f2f09c1Sdp * Version 5 alters the zone_boot system call, and converts its old 3633f2f09c1Sdp * bootargs parameter to be set by the zone_setattr API instead. 364821c4a97Sdp */ 3653f2f09c1Sdp static const int ZONE_SYSCALL_API_VERSION = 5; 366821c4a97Sdp 3677c478bd9Sstevel@tonic-gate /* 3687c478bd9Sstevel@tonic-gate * Certain filesystems (such as NFS and autofs) need to know which zone 3697c478bd9Sstevel@tonic-gate * the mount is being placed in. Because of this, we need to be able to 3707c478bd9Sstevel@tonic-gate * ensure that a zone isn't in the process of being created such that 3717c478bd9Sstevel@tonic-gate * nfs_mount() thinks it is in the global zone, while by the time it 3727c478bd9Sstevel@tonic-gate * gets added the list of mounted zones, it ends up on zoneA's mount 3737c478bd9Sstevel@tonic-gate * list. 3747c478bd9Sstevel@tonic-gate * 3757c478bd9Sstevel@tonic-gate * The following functions: block_mounts()/resume_mounts() and 3767c478bd9Sstevel@tonic-gate * mount_in_progress()/mount_completed() are used by zones and the VFS 3777c478bd9Sstevel@tonic-gate * layer (respectively) to synchronize zone creation and new mounts. 3787c478bd9Sstevel@tonic-gate * 3797c478bd9Sstevel@tonic-gate * The semantics are like a reader-reader lock such that there may 3807c478bd9Sstevel@tonic-gate * either be multiple mounts (or zone creations, if that weren't 3817c478bd9Sstevel@tonic-gate * serialized by zonehash_lock) in progress at the same time, but not 3827c478bd9Sstevel@tonic-gate * both. 3837c478bd9Sstevel@tonic-gate * 3847c478bd9Sstevel@tonic-gate * We use cv's so the user can ctrl-C out of the operation if it's 3857c478bd9Sstevel@tonic-gate * taking too long. 3867c478bd9Sstevel@tonic-gate * 3877c478bd9Sstevel@tonic-gate * The semantics are such that there is unfair bias towards the 3887c478bd9Sstevel@tonic-gate * "current" operation. This means that zone creations may starve if 3897c478bd9Sstevel@tonic-gate * there is a rapid succession of new mounts coming in to the system, or 3907c478bd9Sstevel@tonic-gate * there is a remote possibility that zones will be created at such a 3917c478bd9Sstevel@tonic-gate * rate that new mounts will not be able to proceed. 3927c478bd9Sstevel@tonic-gate */ 3937c478bd9Sstevel@tonic-gate /* 3947c478bd9Sstevel@tonic-gate * Prevent new mounts from progressing to the point of calling 3957c478bd9Sstevel@tonic-gate * VFS_MOUNT(). If there are already mounts in this "region", wait for 3967c478bd9Sstevel@tonic-gate * them to complete. 3977c478bd9Sstevel@tonic-gate */ 3987c478bd9Sstevel@tonic-gate static int 3997c478bd9Sstevel@tonic-gate block_mounts(void) 4007c478bd9Sstevel@tonic-gate { 4017c478bd9Sstevel@tonic-gate int retval = 0; 4027c478bd9Sstevel@tonic-gate 4037c478bd9Sstevel@tonic-gate /* 4047c478bd9Sstevel@tonic-gate * Since it may block for a long time, block_mounts() shouldn't be 4057c478bd9Sstevel@tonic-gate * called with zonehash_lock held. 4067c478bd9Sstevel@tonic-gate */ 4077c478bd9Sstevel@tonic-gate ASSERT(MUTEX_NOT_HELD(&zonehash_lock)); 4087c478bd9Sstevel@tonic-gate mutex_enter(&mount_lock); 4097c478bd9Sstevel@tonic-gate while (mounts_in_progress > 0) { 4107c478bd9Sstevel@tonic-gate if (cv_wait_sig(&mount_cv, &mount_lock) == 0) 4117c478bd9Sstevel@tonic-gate goto signaled; 4127c478bd9Sstevel@tonic-gate } 4137c478bd9Sstevel@tonic-gate /* 4147c478bd9Sstevel@tonic-gate * A negative value of mounts_in_progress indicates that mounts 4157c478bd9Sstevel@tonic-gate * have been blocked by (-mounts_in_progress) different callers. 4167c478bd9Sstevel@tonic-gate */ 4177c478bd9Sstevel@tonic-gate mounts_in_progress--; 4187c478bd9Sstevel@tonic-gate retval = 1; 4197c478bd9Sstevel@tonic-gate signaled: 4207c478bd9Sstevel@tonic-gate mutex_exit(&mount_lock); 4217c478bd9Sstevel@tonic-gate return (retval); 4227c478bd9Sstevel@tonic-gate } 4237c478bd9Sstevel@tonic-gate 4247c478bd9Sstevel@tonic-gate /* 4257c478bd9Sstevel@tonic-gate * The VFS layer may progress with new mounts as far as we're concerned. 4267c478bd9Sstevel@tonic-gate * Allow them to progress if we were the last obstacle. 4277c478bd9Sstevel@tonic-gate */ 4287c478bd9Sstevel@tonic-gate static void 4297c478bd9Sstevel@tonic-gate resume_mounts(void) 4307c478bd9Sstevel@tonic-gate { 4317c478bd9Sstevel@tonic-gate mutex_enter(&mount_lock); 4327c478bd9Sstevel@tonic-gate if (++mounts_in_progress == 0) 4337c478bd9Sstevel@tonic-gate cv_broadcast(&mount_cv); 4347c478bd9Sstevel@tonic-gate mutex_exit(&mount_lock); 4357c478bd9Sstevel@tonic-gate } 4367c478bd9Sstevel@tonic-gate 4377c478bd9Sstevel@tonic-gate /* 4387c478bd9Sstevel@tonic-gate * The VFS layer is busy with a mount; zones should wait until all 4397c478bd9Sstevel@tonic-gate * mounts are completed to progress. 4407c478bd9Sstevel@tonic-gate */ 4417c478bd9Sstevel@tonic-gate void 4427c478bd9Sstevel@tonic-gate mount_in_progress(void) 4437c478bd9Sstevel@tonic-gate { 4447c478bd9Sstevel@tonic-gate mutex_enter(&mount_lock); 4457c478bd9Sstevel@tonic-gate while (mounts_in_progress < 0) 4467c478bd9Sstevel@tonic-gate cv_wait(&mount_cv, &mount_lock); 4477c478bd9Sstevel@tonic-gate mounts_in_progress++; 4487c478bd9Sstevel@tonic-gate mutex_exit(&mount_lock); 4497c478bd9Sstevel@tonic-gate } 4507c478bd9Sstevel@tonic-gate 4517c478bd9Sstevel@tonic-gate /* 4527c478bd9Sstevel@tonic-gate * VFS is done with one mount; wake up any waiting block_mounts() 4537c478bd9Sstevel@tonic-gate * callers if this is the last mount. 4547c478bd9Sstevel@tonic-gate */ 4557c478bd9Sstevel@tonic-gate void 4567c478bd9Sstevel@tonic-gate mount_completed(void) 4577c478bd9Sstevel@tonic-gate { 4587c478bd9Sstevel@tonic-gate mutex_enter(&mount_lock); 4597c478bd9Sstevel@tonic-gate if (--mounts_in_progress == 0) 4607c478bd9Sstevel@tonic-gate cv_broadcast(&mount_cv); 4617c478bd9Sstevel@tonic-gate mutex_exit(&mount_lock); 4627c478bd9Sstevel@tonic-gate } 4637c478bd9Sstevel@tonic-gate 4647c478bd9Sstevel@tonic-gate /* 4657c478bd9Sstevel@tonic-gate * ZSD routines. 4667c478bd9Sstevel@tonic-gate * 4677c478bd9Sstevel@tonic-gate * Zone Specific Data (ZSD) is modeled after Thread Specific Data as 4687c478bd9Sstevel@tonic-gate * defined by the pthread_key_create() and related interfaces. 4697c478bd9Sstevel@tonic-gate * 4707c478bd9Sstevel@tonic-gate * Kernel subsystems may register one or more data items and/or 4717c478bd9Sstevel@tonic-gate * callbacks to be executed when a zone is created, shutdown, or 4727c478bd9Sstevel@tonic-gate * destroyed. 4737c478bd9Sstevel@tonic-gate * 4747c478bd9Sstevel@tonic-gate * Unlike the thread counterpart, destructor callbacks will be executed 4757c478bd9Sstevel@tonic-gate * even if the data pointer is NULL and/or there are no constructor 4767c478bd9Sstevel@tonic-gate * callbacks, so it is the responsibility of such callbacks to check for 4777c478bd9Sstevel@tonic-gate * NULL data values if necessary. 4787c478bd9Sstevel@tonic-gate * 4797c478bd9Sstevel@tonic-gate * The locking strategy and overall picture is as follows: 4807c478bd9Sstevel@tonic-gate * 4817c478bd9Sstevel@tonic-gate * When someone calls zone_key_create(), a template ZSD entry is added to the 4827c478bd9Sstevel@tonic-gate * global list "zsd_registered_keys", protected by zsd_key_lock. The 4837c478bd9Sstevel@tonic-gate * constructor callback is called immediately on all existing zones, and a 4847c478bd9Sstevel@tonic-gate * copy of the ZSD entry added to the per-zone zone_zsd list (protected by 4857c478bd9Sstevel@tonic-gate * zone_lock). As this operation requires the list of zones, the list of 4867c478bd9Sstevel@tonic-gate * registered keys, and the per-zone list of ZSD entries to remain constant 4877c478bd9Sstevel@tonic-gate * throughout the entire operation, it must grab zonehash_lock, zone_lock for 4887c478bd9Sstevel@tonic-gate * all existing zones, and zsd_key_lock, in that order. Similar locking is 4897c478bd9Sstevel@tonic-gate * needed when zone_key_delete() is called. It is thus sufficient to hold 4907c478bd9Sstevel@tonic-gate * zsd_key_lock *or* zone_lock to prevent additions to or removals from the 4917c478bd9Sstevel@tonic-gate * per-zone zone_zsd list. 4927c478bd9Sstevel@tonic-gate * 4937c478bd9Sstevel@tonic-gate * Note that this implementation does not make a copy of the ZSD entry if a 4947c478bd9Sstevel@tonic-gate * constructor callback is not provided. A zone_getspecific() on such an 4957c478bd9Sstevel@tonic-gate * uninitialized ZSD entry will return NULL. 4967c478bd9Sstevel@tonic-gate * 4977c478bd9Sstevel@tonic-gate * When new zones are created constructor callbacks for all registered ZSD 4987c478bd9Sstevel@tonic-gate * entries will be called. 4997c478bd9Sstevel@tonic-gate * 5007c478bd9Sstevel@tonic-gate * The framework does not provide any locking around zone_getspecific() and 5017c478bd9Sstevel@tonic-gate * zone_setspecific() apart from that needed for internal consistency, so 5027c478bd9Sstevel@tonic-gate * callers interested in atomic "test-and-set" semantics will need to provide 5037c478bd9Sstevel@tonic-gate * their own locking. 5047c478bd9Sstevel@tonic-gate */ 5057c478bd9Sstevel@tonic-gate void 5067c478bd9Sstevel@tonic-gate zone_key_create(zone_key_t *keyp, void *(*create)(zoneid_t), 5077c478bd9Sstevel@tonic-gate void (*shutdown)(zoneid_t, void *), void (*destroy)(zoneid_t, void *)) 5087c478bd9Sstevel@tonic-gate { 5097c478bd9Sstevel@tonic-gate struct zsd_entry *zsdp; 5107c478bd9Sstevel@tonic-gate struct zsd_entry *t; 5117c478bd9Sstevel@tonic-gate struct zone *zone; 5127c478bd9Sstevel@tonic-gate 5137c478bd9Sstevel@tonic-gate zsdp = kmem_alloc(sizeof (*zsdp), KM_SLEEP); 5147c478bd9Sstevel@tonic-gate zsdp->zsd_data = NULL; 5157c478bd9Sstevel@tonic-gate zsdp->zsd_create = create; 5167c478bd9Sstevel@tonic-gate zsdp->zsd_shutdown = shutdown; 5177c478bd9Sstevel@tonic-gate zsdp->zsd_destroy = destroy; 5187c478bd9Sstevel@tonic-gate 5197c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); /* stop the world */ 5207c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 5217c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) 5227c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); /* lock all zones */ 5237c478bd9Sstevel@tonic-gate 5247c478bd9Sstevel@tonic-gate mutex_enter(&zsd_key_lock); 5257c478bd9Sstevel@tonic-gate *keyp = zsdp->zsd_key = ++zsd_keyval; 5267c478bd9Sstevel@tonic-gate ASSERT(zsd_keyval != 0); 5277c478bd9Sstevel@tonic-gate list_insert_tail(&zsd_registered_keys, zsdp); 5287c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 5297c478bd9Sstevel@tonic-gate 5307c478bd9Sstevel@tonic-gate if (create != NULL) { 5317c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 5327c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) { 5337c478bd9Sstevel@tonic-gate t = kmem_alloc(sizeof (*t), KM_SLEEP); 5347c478bd9Sstevel@tonic-gate t->zsd_key = *keyp; 5357c478bd9Sstevel@tonic-gate t->zsd_data = (*create)(zone->zone_id); 5367c478bd9Sstevel@tonic-gate t->zsd_create = create; 5377c478bd9Sstevel@tonic-gate t->zsd_shutdown = shutdown; 5387c478bd9Sstevel@tonic-gate t->zsd_destroy = destroy; 5397c478bd9Sstevel@tonic-gate list_insert_tail(&zone->zone_zsd, t); 5407c478bd9Sstevel@tonic-gate } 5417c478bd9Sstevel@tonic-gate } 5427c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 5437c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) 5447c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 5457c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 5467c478bd9Sstevel@tonic-gate } 5477c478bd9Sstevel@tonic-gate 5487c478bd9Sstevel@tonic-gate /* 5497c478bd9Sstevel@tonic-gate * Helper function to find the zsd_entry associated with the key in the 5507c478bd9Sstevel@tonic-gate * given list. 5517c478bd9Sstevel@tonic-gate */ 5527c478bd9Sstevel@tonic-gate static struct zsd_entry * 5537c478bd9Sstevel@tonic-gate zsd_find(list_t *l, zone_key_t key) 5547c478bd9Sstevel@tonic-gate { 5557c478bd9Sstevel@tonic-gate struct zsd_entry *zsd; 5567c478bd9Sstevel@tonic-gate 5577c478bd9Sstevel@tonic-gate for (zsd = list_head(l); zsd != NULL; zsd = list_next(l, zsd)) { 5587c478bd9Sstevel@tonic-gate if (zsd->zsd_key == key) { 5597c478bd9Sstevel@tonic-gate /* 5607c478bd9Sstevel@tonic-gate * Move to head of list to keep list in MRU order. 5617c478bd9Sstevel@tonic-gate */ 5627c478bd9Sstevel@tonic-gate if (zsd != list_head(l)) { 5637c478bd9Sstevel@tonic-gate list_remove(l, zsd); 5647c478bd9Sstevel@tonic-gate list_insert_head(l, zsd); 5657c478bd9Sstevel@tonic-gate } 5667c478bd9Sstevel@tonic-gate return (zsd); 5677c478bd9Sstevel@tonic-gate } 5687c478bd9Sstevel@tonic-gate } 5697c478bd9Sstevel@tonic-gate return (NULL); 5707c478bd9Sstevel@tonic-gate } 5717c478bd9Sstevel@tonic-gate 5727c478bd9Sstevel@tonic-gate /* 5737c478bd9Sstevel@tonic-gate * Function called when a module is being unloaded, or otherwise wishes 5747c478bd9Sstevel@tonic-gate * to unregister its ZSD key and callbacks. 5757c478bd9Sstevel@tonic-gate */ 5767c478bd9Sstevel@tonic-gate int 5777c478bd9Sstevel@tonic-gate zone_key_delete(zone_key_t key) 5787c478bd9Sstevel@tonic-gate { 5797c478bd9Sstevel@tonic-gate struct zsd_entry *zsdp = NULL; 5807c478bd9Sstevel@tonic-gate zone_t *zone; 5817c478bd9Sstevel@tonic-gate 5827c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); /* Zone create/delete waits for us */ 5837c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 5847c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) 5857c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); /* lock all zones */ 5867c478bd9Sstevel@tonic-gate 5877c478bd9Sstevel@tonic-gate mutex_enter(&zsd_key_lock); 5887c478bd9Sstevel@tonic-gate zsdp = zsd_find(&zsd_registered_keys, key); 5897c478bd9Sstevel@tonic-gate if (zsdp == NULL) 5907c478bd9Sstevel@tonic-gate goto notfound; 5917c478bd9Sstevel@tonic-gate list_remove(&zsd_registered_keys, zsdp); 5927c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 5937c478bd9Sstevel@tonic-gate 5947c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 5957c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) { 5967c478bd9Sstevel@tonic-gate struct zsd_entry *del; 5977c478bd9Sstevel@tonic-gate void *data; 5987c478bd9Sstevel@tonic-gate 5997c478bd9Sstevel@tonic-gate if (!(zone->zone_flags & ZF_DESTROYED)) { 6007c478bd9Sstevel@tonic-gate del = zsd_find(&zone->zone_zsd, key); 6017c478bd9Sstevel@tonic-gate if (del != NULL) { 6027c478bd9Sstevel@tonic-gate data = del->zsd_data; 6037c478bd9Sstevel@tonic-gate ASSERT(del->zsd_shutdown == zsdp->zsd_shutdown); 6047c478bd9Sstevel@tonic-gate ASSERT(del->zsd_destroy == zsdp->zsd_destroy); 6057c478bd9Sstevel@tonic-gate list_remove(&zone->zone_zsd, del); 6067c478bd9Sstevel@tonic-gate kmem_free(del, sizeof (*del)); 6077c478bd9Sstevel@tonic-gate } else { 6087c478bd9Sstevel@tonic-gate data = NULL; 6097c478bd9Sstevel@tonic-gate } 6107c478bd9Sstevel@tonic-gate if (zsdp->zsd_shutdown) 6117c478bd9Sstevel@tonic-gate zsdp->zsd_shutdown(zone->zone_id, data); 6127c478bd9Sstevel@tonic-gate if (zsdp->zsd_destroy) 6137c478bd9Sstevel@tonic-gate zsdp->zsd_destroy(zone->zone_id, data); 6147c478bd9Sstevel@tonic-gate } 6157c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 6167c478bd9Sstevel@tonic-gate } 6177c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 6187c478bd9Sstevel@tonic-gate kmem_free(zsdp, sizeof (*zsdp)); 6197c478bd9Sstevel@tonic-gate return (0); 6207c478bd9Sstevel@tonic-gate 6217c478bd9Sstevel@tonic-gate notfound: 6227c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 6237c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 6247c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) 6257c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 6267c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 6277c478bd9Sstevel@tonic-gate return (-1); 6287c478bd9Sstevel@tonic-gate } 6297c478bd9Sstevel@tonic-gate 6307c478bd9Sstevel@tonic-gate /* 6317c478bd9Sstevel@tonic-gate * ZSD counterpart of pthread_setspecific(). 6327c478bd9Sstevel@tonic-gate */ 6337c478bd9Sstevel@tonic-gate int 6347c478bd9Sstevel@tonic-gate zone_setspecific(zone_key_t key, zone_t *zone, const void *data) 6357c478bd9Sstevel@tonic-gate { 6367c478bd9Sstevel@tonic-gate struct zsd_entry *t; 6377c478bd9Sstevel@tonic-gate struct zsd_entry *zsdp = NULL; 6387c478bd9Sstevel@tonic-gate 6397c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 6407c478bd9Sstevel@tonic-gate t = zsd_find(&zone->zone_zsd, key); 6417c478bd9Sstevel@tonic-gate if (t != NULL) { 6427c478bd9Sstevel@tonic-gate /* 6437c478bd9Sstevel@tonic-gate * Replace old value with new 6447c478bd9Sstevel@tonic-gate */ 6457c478bd9Sstevel@tonic-gate t->zsd_data = (void *)data; 6467c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 6477c478bd9Sstevel@tonic-gate return (0); 6487c478bd9Sstevel@tonic-gate } 6497c478bd9Sstevel@tonic-gate /* 6507c478bd9Sstevel@tonic-gate * If there was no previous value, go through the list of registered 6517c478bd9Sstevel@tonic-gate * keys. 6527c478bd9Sstevel@tonic-gate * 6537c478bd9Sstevel@tonic-gate * We avoid grabbing zsd_key_lock until we are sure we need it; this is 6547c478bd9Sstevel@tonic-gate * necessary for shutdown callbacks to be able to execute without fear 6557c478bd9Sstevel@tonic-gate * of deadlock. 6567c478bd9Sstevel@tonic-gate */ 6577c478bd9Sstevel@tonic-gate mutex_enter(&zsd_key_lock); 6587c478bd9Sstevel@tonic-gate zsdp = zsd_find(&zsd_registered_keys, key); 6597c478bd9Sstevel@tonic-gate if (zsdp == NULL) { /* Key was not registered */ 6607c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 6617c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 6627c478bd9Sstevel@tonic-gate return (-1); 6637c478bd9Sstevel@tonic-gate } 6647c478bd9Sstevel@tonic-gate 6657c478bd9Sstevel@tonic-gate /* 6667c478bd9Sstevel@tonic-gate * Add a zsd_entry to this zone, using the template we just retrieved 6677c478bd9Sstevel@tonic-gate * to initialize the constructor and destructor(s). 6687c478bd9Sstevel@tonic-gate */ 6697c478bd9Sstevel@tonic-gate t = kmem_alloc(sizeof (*t), KM_SLEEP); 6707c478bd9Sstevel@tonic-gate t->zsd_key = key; 6717c478bd9Sstevel@tonic-gate t->zsd_data = (void *)data; 6727c478bd9Sstevel@tonic-gate t->zsd_create = zsdp->zsd_create; 6737c478bd9Sstevel@tonic-gate t->zsd_shutdown = zsdp->zsd_shutdown; 6747c478bd9Sstevel@tonic-gate t->zsd_destroy = zsdp->zsd_destroy; 6757c478bd9Sstevel@tonic-gate list_insert_tail(&zone->zone_zsd, t); 6767c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 6777c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 6787c478bd9Sstevel@tonic-gate return (0); 6797c478bd9Sstevel@tonic-gate } 6807c478bd9Sstevel@tonic-gate 6817c478bd9Sstevel@tonic-gate /* 6827c478bd9Sstevel@tonic-gate * ZSD counterpart of pthread_getspecific(). 6837c478bd9Sstevel@tonic-gate */ 6847c478bd9Sstevel@tonic-gate void * 6857c478bd9Sstevel@tonic-gate zone_getspecific(zone_key_t key, zone_t *zone) 6867c478bd9Sstevel@tonic-gate { 6877c478bd9Sstevel@tonic-gate struct zsd_entry *t; 6887c478bd9Sstevel@tonic-gate void *data; 6897c478bd9Sstevel@tonic-gate 6907c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 6917c478bd9Sstevel@tonic-gate t = zsd_find(&zone->zone_zsd, key); 6927c478bd9Sstevel@tonic-gate data = (t == NULL ? NULL : t->zsd_data); 6937c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 6947c478bd9Sstevel@tonic-gate return (data); 6957c478bd9Sstevel@tonic-gate } 6967c478bd9Sstevel@tonic-gate 6977c478bd9Sstevel@tonic-gate /* 6987c478bd9Sstevel@tonic-gate * Function used to initialize a zone's list of ZSD callbacks and data 6997c478bd9Sstevel@tonic-gate * when the zone is being created. The callbacks are initialized from 7007c478bd9Sstevel@tonic-gate * the template list (zsd_registered_keys), and the constructor 7017c478bd9Sstevel@tonic-gate * callback executed (if one exists). 7027c478bd9Sstevel@tonic-gate * 7037c478bd9Sstevel@tonic-gate * This is called before the zone is made publicly available, hence no 7047c478bd9Sstevel@tonic-gate * need to grab zone_lock. 7057c478bd9Sstevel@tonic-gate * 7067c478bd9Sstevel@tonic-gate * Although we grab and release zsd_key_lock, new entries cannot be 7077c478bd9Sstevel@tonic-gate * added to or removed from the zsd_registered_keys list until we 7087c478bd9Sstevel@tonic-gate * release zonehash_lock, so there isn't a window for a 7097c478bd9Sstevel@tonic-gate * zone_key_create() to come in after we've dropped zsd_key_lock but 7107c478bd9Sstevel@tonic-gate * before the zone is added to the zone list, such that the constructor 7117c478bd9Sstevel@tonic-gate * callbacks aren't executed for the new zone. 7127c478bd9Sstevel@tonic-gate */ 7137c478bd9Sstevel@tonic-gate static void 7147c478bd9Sstevel@tonic-gate zone_zsd_configure(zone_t *zone) 7157c478bd9Sstevel@tonic-gate { 7167c478bd9Sstevel@tonic-gate struct zsd_entry *zsdp; 7177c478bd9Sstevel@tonic-gate struct zsd_entry *t; 7187c478bd9Sstevel@tonic-gate zoneid_t zoneid = zone->zone_id; 7197c478bd9Sstevel@tonic-gate 7207c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zonehash_lock)); 7217c478bd9Sstevel@tonic-gate ASSERT(list_head(&zone->zone_zsd) == NULL); 7227c478bd9Sstevel@tonic-gate mutex_enter(&zsd_key_lock); 7237c478bd9Sstevel@tonic-gate for (zsdp = list_head(&zsd_registered_keys); zsdp != NULL; 7247c478bd9Sstevel@tonic-gate zsdp = list_next(&zsd_registered_keys, zsdp)) { 7257c478bd9Sstevel@tonic-gate if (zsdp->zsd_create != NULL) { 7267c478bd9Sstevel@tonic-gate t = kmem_alloc(sizeof (*t), KM_SLEEP); 7277c478bd9Sstevel@tonic-gate t->zsd_key = zsdp->zsd_key; 7287c478bd9Sstevel@tonic-gate t->zsd_create = zsdp->zsd_create; 7297c478bd9Sstevel@tonic-gate t->zsd_data = (*t->zsd_create)(zoneid); 7307c478bd9Sstevel@tonic-gate t->zsd_shutdown = zsdp->zsd_shutdown; 7317c478bd9Sstevel@tonic-gate t->zsd_destroy = zsdp->zsd_destroy; 7327c478bd9Sstevel@tonic-gate list_insert_tail(&zone->zone_zsd, t); 7337c478bd9Sstevel@tonic-gate } 7347c478bd9Sstevel@tonic-gate } 7357c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 7367c478bd9Sstevel@tonic-gate } 7377c478bd9Sstevel@tonic-gate 7387c478bd9Sstevel@tonic-gate enum zsd_callback_type { ZSD_CREATE, ZSD_SHUTDOWN, ZSD_DESTROY }; 7397c478bd9Sstevel@tonic-gate 7407c478bd9Sstevel@tonic-gate /* 7417c478bd9Sstevel@tonic-gate * Helper function to execute shutdown or destructor callbacks. 7427c478bd9Sstevel@tonic-gate */ 7437c478bd9Sstevel@tonic-gate static void 7447c478bd9Sstevel@tonic-gate zone_zsd_callbacks(zone_t *zone, enum zsd_callback_type ct) 7457c478bd9Sstevel@tonic-gate { 7467c478bd9Sstevel@tonic-gate struct zsd_entry *zsdp; 7477c478bd9Sstevel@tonic-gate struct zsd_entry *t; 7487c478bd9Sstevel@tonic-gate zoneid_t zoneid = zone->zone_id; 7497c478bd9Sstevel@tonic-gate 7507c478bd9Sstevel@tonic-gate ASSERT(ct == ZSD_SHUTDOWN || ct == ZSD_DESTROY); 7517c478bd9Sstevel@tonic-gate ASSERT(ct != ZSD_SHUTDOWN || zone_status_get(zone) >= ZONE_IS_EMPTY); 7527c478bd9Sstevel@tonic-gate ASSERT(ct != ZSD_DESTROY || zone_status_get(zone) >= ZONE_IS_DOWN); 7537c478bd9Sstevel@tonic-gate 7547c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 7557c478bd9Sstevel@tonic-gate if (ct == ZSD_DESTROY) { 7567c478bd9Sstevel@tonic-gate if (zone->zone_flags & ZF_DESTROYED) { 7577c478bd9Sstevel@tonic-gate /* 7587c478bd9Sstevel@tonic-gate * Make sure destructors are only called once. 7597c478bd9Sstevel@tonic-gate */ 7607c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 7617c478bd9Sstevel@tonic-gate return; 7627c478bd9Sstevel@tonic-gate } 7637c478bd9Sstevel@tonic-gate zone->zone_flags |= ZF_DESTROYED; 7647c478bd9Sstevel@tonic-gate } 7657c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 7667c478bd9Sstevel@tonic-gate 7677c478bd9Sstevel@tonic-gate /* 7687c478bd9Sstevel@tonic-gate * Both zsd_key_lock and zone_lock need to be held in order to add or 7697c478bd9Sstevel@tonic-gate * remove a ZSD key, (either globally as part of 7707c478bd9Sstevel@tonic-gate * zone_key_create()/zone_key_delete(), or on a per-zone basis, as is 7717c478bd9Sstevel@tonic-gate * possible through zone_setspecific()), so it's sufficient to hold 7727c478bd9Sstevel@tonic-gate * zsd_key_lock here. 7737c478bd9Sstevel@tonic-gate * 7747c478bd9Sstevel@tonic-gate * This is a good thing, since we don't want to recursively try to grab 7757c478bd9Sstevel@tonic-gate * zone_lock if a callback attempts to do something like a crfree() or 7767c478bd9Sstevel@tonic-gate * zone_rele(). 7777c478bd9Sstevel@tonic-gate */ 7787c478bd9Sstevel@tonic-gate mutex_enter(&zsd_key_lock); 7797c478bd9Sstevel@tonic-gate for (zsdp = list_head(&zsd_registered_keys); zsdp != NULL; 7807c478bd9Sstevel@tonic-gate zsdp = list_next(&zsd_registered_keys, zsdp)) { 7817c478bd9Sstevel@tonic-gate zone_key_t key = zsdp->zsd_key; 7827c478bd9Sstevel@tonic-gate 7837c478bd9Sstevel@tonic-gate /* Skip if no callbacks registered */ 7847c478bd9Sstevel@tonic-gate if (ct == ZSD_SHUTDOWN && zsdp->zsd_shutdown == NULL) 7857c478bd9Sstevel@tonic-gate continue; 7867c478bd9Sstevel@tonic-gate if (ct == ZSD_DESTROY && zsdp->zsd_destroy == NULL) 7877c478bd9Sstevel@tonic-gate continue; 7887c478bd9Sstevel@tonic-gate /* 7897c478bd9Sstevel@tonic-gate * Call the callback with the zone-specific data if we can find 7907c478bd9Sstevel@tonic-gate * any, otherwise with NULL. 7917c478bd9Sstevel@tonic-gate */ 7927c478bd9Sstevel@tonic-gate t = zsd_find(&zone->zone_zsd, key); 7937c478bd9Sstevel@tonic-gate if (t != NULL) { 7947c478bd9Sstevel@tonic-gate if (ct == ZSD_SHUTDOWN) { 7957c478bd9Sstevel@tonic-gate t->zsd_shutdown(zoneid, t->zsd_data); 7967c478bd9Sstevel@tonic-gate } else { 7977c478bd9Sstevel@tonic-gate ASSERT(ct == ZSD_DESTROY); 7987c478bd9Sstevel@tonic-gate t->zsd_destroy(zoneid, t->zsd_data); 7997c478bd9Sstevel@tonic-gate } 8007c478bd9Sstevel@tonic-gate } else { 8017c478bd9Sstevel@tonic-gate if (ct == ZSD_SHUTDOWN) { 8027c478bd9Sstevel@tonic-gate zsdp->zsd_shutdown(zoneid, NULL); 8037c478bd9Sstevel@tonic-gate } else { 8047c478bd9Sstevel@tonic-gate ASSERT(ct == ZSD_DESTROY); 8057c478bd9Sstevel@tonic-gate zsdp->zsd_destroy(zoneid, NULL); 8067c478bd9Sstevel@tonic-gate } 8077c478bd9Sstevel@tonic-gate } 8087c478bd9Sstevel@tonic-gate } 8097c478bd9Sstevel@tonic-gate mutex_exit(&zsd_key_lock); 8107c478bd9Sstevel@tonic-gate } 8117c478bd9Sstevel@tonic-gate 8127c478bd9Sstevel@tonic-gate /* 8137c478bd9Sstevel@tonic-gate * Called when the zone is going away; free ZSD-related memory, and 8147c478bd9Sstevel@tonic-gate * destroy the zone_zsd list. 8157c478bd9Sstevel@tonic-gate */ 8167c478bd9Sstevel@tonic-gate static void 8177c478bd9Sstevel@tonic-gate zone_free_zsd(zone_t *zone) 8187c478bd9Sstevel@tonic-gate { 8197c478bd9Sstevel@tonic-gate struct zsd_entry *t, *next; 8207c478bd9Sstevel@tonic-gate 8217c478bd9Sstevel@tonic-gate /* 8227c478bd9Sstevel@tonic-gate * Free all the zsd_entry's we had on this zone. 8237c478bd9Sstevel@tonic-gate */ 8247c478bd9Sstevel@tonic-gate for (t = list_head(&zone->zone_zsd); t != NULL; t = next) { 8257c478bd9Sstevel@tonic-gate next = list_next(&zone->zone_zsd, t); 8267c478bd9Sstevel@tonic-gate list_remove(&zone->zone_zsd, t); 8277c478bd9Sstevel@tonic-gate kmem_free(t, sizeof (*t)); 8287c478bd9Sstevel@tonic-gate } 8297c478bd9Sstevel@tonic-gate list_destroy(&zone->zone_zsd); 8307c478bd9Sstevel@tonic-gate } 8317c478bd9Sstevel@tonic-gate 832fa9e4066Sahrens /* 833fa9e4066Sahrens * Frees memory associated with the zone dataset list. 834fa9e4066Sahrens */ 835fa9e4066Sahrens static void 836fa9e4066Sahrens zone_free_datasets(zone_t *zone) 837fa9e4066Sahrens { 838fa9e4066Sahrens zone_dataset_t *t, *next; 839fa9e4066Sahrens 840fa9e4066Sahrens for (t = list_head(&zone->zone_datasets); t != NULL; t = next) { 841fa9e4066Sahrens next = list_next(&zone->zone_datasets, t); 842fa9e4066Sahrens list_remove(&zone->zone_datasets, t); 843fa9e4066Sahrens kmem_free(t->zd_dataset, strlen(t->zd_dataset) + 1); 844fa9e4066Sahrens kmem_free(t, sizeof (*t)); 845fa9e4066Sahrens } 846fa9e4066Sahrens list_destroy(&zone->zone_datasets); 847fa9e4066Sahrens } 848fa9e4066Sahrens 8497c478bd9Sstevel@tonic-gate /* 8507c478bd9Sstevel@tonic-gate * zone.cpu-shares resource control support. 8517c478bd9Sstevel@tonic-gate */ 8527c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 8537c478bd9Sstevel@tonic-gate static rctl_qty_t 8547c478bd9Sstevel@tonic-gate zone_cpu_shares_usage(rctl_t *rctl, struct proc *p) 8557c478bd9Sstevel@tonic-gate { 8567c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&p->p_lock)); 8577c478bd9Sstevel@tonic-gate return (p->p_zone->zone_shares); 8587c478bd9Sstevel@tonic-gate } 8597c478bd9Sstevel@tonic-gate 8607c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 8617c478bd9Sstevel@tonic-gate static int 8627c478bd9Sstevel@tonic-gate zone_cpu_shares_set(rctl_t *rctl, struct proc *p, rctl_entity_p_t *e, 8637c478bd9Sstevel@tonic-gate rctl_qty_t nv) 8647c478bd9Sstevel@tonic-gate { 8657c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&p->p_lock)); 8667c478bd9Sstevel@tonic-gate ASSERT(e->rcep_t == RCENTITY_ZONE); 8677c478bd9Sstevel@tonic-gate if (e->rcep_p.zone == NULL) 8687c478bd9Sstevel@tonic-gate return (0); 8697c478bd9Sstevel@tonic-gate 8707c478bd9Sstevel@tonic-gate e->rcep_p.zone->zone_shares = nv; 8717c478bd9Sstevel@tonic-gate return (0); 8727c478bd9Sstevel@tonic-gate } 8737c478bd9Sstevel@tonic-gate 8747c478bd9Sstevel@tonic-gate static rctl_ops_t zone_cpu_shares_ops = { 8757c478bd9Sstevel@tonic-gate rcop_no_action, 8767c478bd9Sstevel@tonic-gate zone_cpu_shares_usage, 8777c478bd9Sstevel@tonic-gate zone_cpu_shares_set, 8787c478bd9Sstevel@tonic-gate rcop_no_test 8797c478bd9Sstevel@tonic-gate }; 8807c478bd9Sstevel@tonic-gate 8817c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 8827c478bd9Sstevel@tonic-gate static rctl_qty_t 8837c478bd9Sstevel@tonic-gate zone_lwps_usage(rctl_t *r, proc_t *p) 8847c478bd9Sstevel@tonic-gate { 8857c478bd9Sstevel@tonic-gate rctl_qty_t nlwps; 8867c478bd9Sstevel@tonic-gate zone_t *zone = p->p_zone; 8877c478bd9Sstevel@tonic-gate 8887c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&p->p_lock)); 8897c478bd9Sstevel@tonic-gate 8907c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_nlwps_lock); 8917c478bd9Sstevel@tonic-gate nlwps = zone->zone_nlwps; 8927c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_nlwps_lock); 8937c478bd9Sstevel@tonic-gate 8947c478bd9Sstevel@tonic-gate return (nlwps); 8957c478bd9Sstevel@tonic-gate } 8967c478bd9Sstevel@tonic-gate 8977c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 8987c478bd9Sstevel@tonic-gate static int 8997c478bd9Sstevel@tonic-gate zone_lwps_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, rctl_val_t *rcntl, 9007c478bd9Sstevel@tonic-gate rctl_qty_t incr, uint_t flags) 9017c478bd9Sstevel@tonic-gate { 9027c478bd9Sstevel@tonic-gate rctl_qty_t nlwps; 9037c478bd9Sstevel@tonic-gate 9047c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&p->p_lock)); 9057c478bd9Sstevel@tonic-gate ASSERT(e->rcep_t == RCENTITY_ZONE); 9067c478bd9Sstevel@tonic-gate if (e->rcep_p.zone == NULL) 9077c478bd9Sstevel@tonic-gate return (0); 9087c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&(e->rcep_p.zone->zone_nlwps_lock))); 9097c478bd9Sstevel@tonic-gate nlwps = e->rcep_p.zone->zone_nlwps; 9107c478bd9Sstevel@tonic-gate 9117c478bd9Sstevel@tonic-gate if (nlwps + incr > rcntl->rcv_value) 9127c478bd9Sstevel@tonic-gate return (1); 9137c478bd9Sstevel@tonic-gate 9147c478bd9Sstevel@tonic-gate return (0); 9157c478bd9Sstevel@tonic-gate } 9167c478bd9Sstevel@tonic-gate 9177c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 9187c478bd9Sstevel@tonic-gate static int 919c6939658Ssl zone_lwps_set(rctl_t *rctl, struct proc *p, rctl_entity_p_t *e, rctl_qty_t nv) 920c6939658Ssl { 9217c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&p->p_lock)); 9227c478bd9Sstevel@tonic-gate ASSERT(e->rcep_t == RCENTITY_ZONE); 9237c478bd9Sstevel@tonic-gate if (e->rcep_p.zone == NULL) 9247c478bd9Sstevel@tonic-gate return (0); 9257c478bd9Sstevel@tonic-gate e->rcep_p.zone->zone_nlwps_ctl = nv; 9267c478bd9Sstevel@tonic-gate return (0); 9277c478bd9Sstevel@tonic-gate } 9287c478bd9Sstevel@tonic-gate 9297c478bd9Sstevel@tonic-gate static rctl_ops_t zone_lwps_ops = { 9307c478bd9Sstevel@tonic-gate rcop_no_action, 9317c478bd9Sstevel@tonic-gate zone_lwps_usage, 9327c478bd9Sstevel@tonic-gate zone_lwps_set, 9337c478bd9Sstevel@tonic-gate zone_lwps_test, 9347c478bd9Sstevel@tonic-gate }; 9357c478bd9Sstevel@tonic-gate 936824c205fSml /*ARGSUSED*/ 937824c205fSml static int 938824c205fSml zone_shmmax_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, rctl_val_t *rval, 939824c205fSml rctl_qty_t incr, uint_t flags) 940824c205fSml { 941824c205fSml rctl_qty_t v; 942824c205fSml ASSERT(MUTEX_HELD(&p->p_lock)); 943824c205fSml ASSERT(e->rcep_t == RCENTITY_ZONE); 944824c205fSml v = e->rcep_p.zone->zone_shmmax + incr; 945824c205fSml if (v > rval->rcv_value) 946824c205fSml return (1); 947824c205fSml return (0); 948824c205fSml } 949824c205fSml 950824c205fSml static rctl_ops_t zone_shmmax_ops = { 951824c205fSml rcop_no_action, 952824c205fSml rcop_no_usage, 953824c205fSml rcop_no_set, 954824c205fSml zone_shmmax_test 955824c205fSml }; 956824c205fSml 957824c205fSml /*ARGSUSED*/ 958824c205fSml static int 959824c205fSml zone_shmmni_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, rctl_val_t *rval, 960824c205fSml rctl_qty_t incr, uint_t flags) 961824c205fSml { 962824c205fSml rctl_qty_t v; 963824c205fSml ASSERT(MUTEX_HELD(&p->p_lock)); 964824c205fSml ASSERT(e->rcep_t == RCENTITY_ZONE); 965824c205fSml v = e->rcep_p.zone->zone_ipc.ipcq_shmmni + incr; 966824c205fSml if (v > rval->rcv_value) 967824c205fSml return (1); 968824c205fSml return (0); 969824c205fSml } 970824c205fSml 971824c205fSml static rctl_ops_t zone_shmmni_ops = { 972824c205fSml rcop_no_action, 973824c205fSml rcop_no_usage, 974824c205fSml rcop_no_set, 975824c205fSml zone_shmmni_test 976824c205fSml }; 977824c205fSml 978824c205fSml /*ARGSUSED*/ 979824c205fSml static int 980824c205fSml zone_semmni_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, rctl_val_t *rval, 981824c205fSml rctl_qty_t incr, uint_t flags) 982824c205fSml { 983824c205fSml rctl_qty_t v; 984824c205fSml ASSERT(MUTEX_HELD(&p->p_lock)); 985824c205fSml ASSERT(e->rcep_t == RCENTITY_ZONE); 986824c205fSml v = e->rcep_p.zone->zone_ipc.ipcq_semmni + incr; 987824c205fSml if (v > rval->rcv_value) 988824c205fSml return (1); 989824c205fSml return (0); 990824c205fSml } 991824c205fSml 992824c205fSml static rctl_ops_t zone_semmni_ops = { 993824c205fSml rcop_no_action, 994824c205fSml rcop_no_usage, 995824c205fSml rcop_no_set, 996824c205fSml zone_semmni_test 997824c205fSml }; 998824c205fSml 999824c205fSml /*ARGSUSED*/ 1000824c205fSml static int 1001824c205fSml zone_msgmni_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, rctl_val_t *rval, 1002824c205fSml rctl_qty_t incr, uint_t flags) 1003824c205fSml { 1004824c205fSml rctl_qty_t v; 1005824c205fSml ASSERT(MUTEX_HELD(&p->p_lock)); 1006824c205fSml ASSERT(e->rcep_t == RCENTITY_ZONE); 1007824c205fSml v = e->rcep_p.zone->zone_ipc.ipcq_msgmni + incr; 1008824c205fSml if (v > rval->rcv_value) 1009824c205fSml return (1); 1010824c205fSml return (0); 1011824c205fSml } 1012824c205fSml 1013824c205fSml static rctl_ops_t zone_msgmni_ops = { 1014824c205fSml rcop_no_action, 1015824c205fSml rcop_no_usage, 1016824c205fSml rcop_no_set, 1017824c205fSml zone_msgmni_test 1018824c205fSml }; 1019824c205fSml 1020c6939658Ssl /*ARGSUSED*/ 1021c6939658Ssl static rctl_qty_t 1022c6939658Ssl zone_locked_mem_usage(rctl_t *rctl, struct proc *p) 1023c6939658Ssl { 1024c6939658Ssl rctl_qty_t q; 1025c6939658Ssl ASSERT(MUTEX_HELD(&p->p_lock)); 1026*0209230bSgjelinek mutex_enter(&p->p_zone->zone_mem_lock); 1027c6939658Ssl q = p->p_zone->zone_locked_mem; 1028*0209230bSgjelinek mutex_exit(&p->p_zone->zone_mem_lock); 1029c6939658Ssl return (q); 1030c6939658Ssl } 1031c6939658Ssl 1032c6939658Ssl /*ARGSUSED*/ 1033c6939658Ssl static int 1034c6939658Ssl zone_locked_mem_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, 1035c6939658Ssl rctl_val_t *rcntl, rctl_qty_t incr, uint_t flags) 1036c6939658Ssl { 1037c6939658Ssl rctl_qty_t q; 1038*0209230bSgjelinek zone_t *z; 1039*0209230bSgjelinek 1040*0209230bSgjelinek z = e->rcep_p.zone; 1041c6939658Ssl ASSERT(MUTEX_HELD(&p->p_lock)); 1042*0209230bSgjelinek ASSERT(MUTEX_HELD(&z->zone_mem_lock)); 1043*0209230bSgjelinek q = z->zone_locked_mem; 1044c6939658Ssl if (q + incr > rcntl->rcv_value) 1045c6939658Ssl return (1); 1046c6939658Ssl return (0); 1047c6939658Ssl } 1048c6939658Ssl 1049c6939658Ssl /*ARGSUSED*/ 1050c6939658Ssl static int 1051c6939658Ssl zone_locked_mem_set(rctl_t *rctl, struct proc *p, rctl_entity_p_t *e, 1052c6939658Ssl rctl_qty_t nv) 1053c6939658Ssl { 1054c6939658Ssl ASSERT(MUTEX_HELD(&p->p_lock)); 1055c6939658Ssl ASSERT(e->rcep_t == RCENTITY_ZONE); 1056c6939658Ssl if (e->rcep_p.zone == NULL) 1057c6939658Ssl return (0); 1058c6939658Ssl e->rcep_p.zone->zone_locked_mem_ctl = nv; 1059c6939658Ssl return (0); 1060c6939658Ssl } 1061c6939658Ssl 1062c6939658Ssl static rctl_ops_t zone_locked_mem_ops = { 1063c6939658Ssl rcop_no_action, 1064c6939658Ssl zone_locked_mem_usage, 1065c6939658Ssl zone_locked_mem_set, 1066c6939658Ssl zone_locked_mem_test 1067c6939658Ssl }; 1068824c205fSml 1069*0209230bSgjelinek /*ARGSUSED*/ 1070*0209230bSgjelinek static rctl_qty_t 1071*0209230bSgjelinek zone_max_swap_usage(rctl_t *rctl, struct proc *p) 1072*0209230bSgjelinek { 1073*0209230bSgjelinek rctl_qty_t q; 1074*0209230bSgjelinek zone_t *z = p->p_zone; 1075*0209230bSgjelinek 1076*0209230bSgjelinek ASSERT(MUTEX_HELD(&p->p_lock)); 1077*0209230bSgjelinek mutex_enter(&z->zone_mem_lock); 1078*0209230bSgjelinek q = z->zone_max_swap; 1079*0209230bSgjelinek mutex_exit(&z->zone_mem_lock); 1080*0209230bSgjelinek return (q); 1081*0209230bSgjelinek } 1082*0209230bSgjelinek 1083*0209230bSgjelinek /*ARGSUSED*/ 1084*0209230bSgjelinek static int 1085*0209230bSgjelinek zone_max_swap_test(rctl_t *r, proc_t *p, rctl_entity_p_t *e, 1086*0209230bSgjelinek rctl_val_t *rcntl, rctl_qty_t incr, uint_t flags) 1087*0209230bSgjelinek { 1088*0209230bSgjelinek rctl_qty_t q; 1089*0209230bSgjelinek zone_t *z; 1090*0209230bSgjelinek 1091*0209230bSgjelinek z = e->rcep_p.zone; 1092*0209230bSgjelinek ASSERT(MUTEX_HELD(&p->p_lock)); 1093*0209230bSgjelinek ASSERT(MUTEX_HELD(&z->zone_mem_lock)); 1094*0209230bSgjelinek q = z->zone_max_swap; 1095*0209230bSgjelinek if (q + incr > rcntl->rcv_value) 1096*0209230bSgjelinek return (1); 1097*0209230bSgjelinek return (0); 1098*0209230bSgjelinek } 1099*0209230bSgjelinek 1100*0209230bSgjelinek /*ARGSUSED*/ 1101*0209230bSgjelinek static int 1102*0209230bSgjelinek zone_max_swap_set(rctl_t *rctl, struct proc *p, rctl_entity_p_t *e, 1103*0209230bSgjelinek rctl_qty_t nv) 1104*0209230bSgjelinek { 1105*0209230bSgjelinek ASSERT(MUTEX_HELD(&p->p_lock)); 1106*0209230bSgjelinek ASSERT(e->rcep_t == RCENTITY_ZONE); 1107*0209230bSgjelinek if (e->rcep_p.zone == NULL) 1108*0209230bSgjelinek return (0); 1109*0209230bSgjelinek e->rcep_p.zone->zone_max_swap_ctl = nv; 1110*0209230bSgjelinek return (0); 1111*0209230bSgjelinek } 1112*0209230bSgjelinek 1113*0209230bSgjelinek static rctl_ops_t zone_max_swap_ops = { 1114*0209230bSgjelinek rcop_no_action, 1115*0209230bSgjelinek zone_max_swap_usage, 1116*0209230bSgjelinek zone_max_swap_set, 1117*0209230bSgjelinek zone_max_swap_test 1118*0209230bSgjelinek }; 1119*0209230bSgjelinek 11207c478bd9Sstevel@tonic-gate /* 11217c478bd9Sstevel@tonic-gate * Helper function to brand the zone with a unique ID. 11227c478bd9Sstevel@tonic-gate */ 11237c478bd9Sstevel@tonic-gate static void 11247c478bd9Sstevel@tonic-gate zone_uniqid(zone_t *zone) 11257c478bd9Sstevel@tonic-gate { 11267c478bd9Sstevel@tonic-gate static uint64_t uniqid = 0; 11277c478bd9Sstevel@tonic-gate 11287c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zonehash_lock)); 11297c478bd9Sstevel@tonic-gate zone->zone_uniqid = uniqid++; 11307c478bd9Sstevel@tonic-gate } 11317c478bd9Sstevel@tonic-gate 11327c478bd9Sstevel@tonic-gate /* 11337c478bd9Sstevel@tonic-gate * Returns a held pointer to the "kcred" for the specified zone. 11347c478bd9Sstevel@tonic-gate */ 11357c478bd9Sstevel@tonic-gate struct cred * 11367c478bd9Sstevel@tonic-gate zone_get_kcred(zoneid_t zoneid) 11377c478bd9Sstevel@tonic-gate { 11387c478bd9Sstevel@tonic-gate zone_t *zone; 11397c478bd9Sstevel@tonic-gate cred_t *cr; 11407c478bd9Sstevel@tonic-gate 11417c478bd9Sstevel@tonic-gate if ((zone = zone_find_by_id(zoneid)) == NULL) 11427c478bd9Sstevel@tonic-gate return (NULL); 11437c478bd9Sstevel@tonic-gate cr = zone->zone_kcred; 11447c478bd9Sstevel@tonic-gate crhold(cr); 11457c478bd9Sstevel@tonic-gate zone_rele(zone); 11467c478bd9Sstevel@tonic-gate return (cr); 11477c478bd9Sstevel@tonic-gate } 11487c478bd9Sstevel@tonic-gate 1149*0209230bSgjelinek static int 1150*0209230bSgjelinek zone_lockedmem_kstat_update(kstat_t *ksp, int rw) 1151*0209230bSgjelinek { 1152*0209230bSgjelinek zone_t *zone = ksp->ks_private; 1153*0209230bSgjelinek zone_kstat_t *zk = ksp->ks_data; 1154*0209230bSgjelinek 1155*0209230bSgjelinek if (rw == KSTAT_WRITE) 1156*0209230bSgjelinek return (EACCES); 1157*0209230bSgjelinek 1158*0209230bSgjelinek zk->zk_usage.value.ui64 = zone->zone_locked_mem; 1159*0209230bSgjelinek zk->zk_value.value.ui64 = zone->zone_locked_mem_ctl; 1160*0209230bSgjelinek return (0); 1161*0209230bSgjelinek } 1162*0209230bSgjelinek 1163*0209230bSgjelinek static int 1164*0209230bSgjelinek zone_swapresv_kstat_update(kstat_t *ksp, int rw) 1165*0209230bSgjelinek { 1166*0209230bSgjelinek zone_t *zone = ksp->ks_private; 1167*0209230bSgjelinek zone_kstat_t *zk = ksp->ks_data; 1168*0209230bSgjelinek 1169*0209230bSgjelinek if (rw == KSTAT_WRITE) 1170*0209230bSgjelinek return (EACCES); 1171*0209230bSgjelinek 1172*0209230bSgjelinek zk->zk_usage.value.ui64 = zone->zone_max_swap; 1173*0209230bSgjelinek zk->zk_value.value.ui64 = zone->zone_max_swap_ctl; 1174*0209230bSgjelinek return (0); 1175*0209230bSgjelinek } 1176*0209230bSgjelinek 1177*0209230bSgjelinek static void 1178*0209230bSgjelinek zone_kstat_create(zone_t *zone) 1179*0209230bSgjelinek { 1180*0209230bSgjelinek kstat_t *ksp; 1181*0209230bSgjelinek zone_kstat_t *zk; 1182*0209230bSgjelinek 1183*0209230bSgjelinek ksp = rctl_kstat_create_zone(zone, "lockedmem", KSTAT_TYPE_NAMED, 1184*0209230bSgjelinek sizeof (zone_kstat_t) / sizeof (kstat_named_t), 1185*0209230bSgjelinek KSTAT_FLAG_VIRTUAL); 1186*0209230bSgjelinek 1187*0209230bSgjelinek if (ksp == NULL) 1188*0209230bSgjelinek return; 1189*0209230bSgjelinek 1190*0209230bSgjelinek zk = ksp->ks_data = kmem_alloc(sizeof (zone_kstat_t), KM_SLEEP); 1191*0209230bSgjelinek ksp->ks_data_size += strlen(zone->zone_name) + 1; 1192*0209230bSgjelinek kstat_named_init(&zk->zk_zonename, "zonename", KSTAT_DATA_STRING); 1193*0209230bSgjelinek kstat_named_setstr(&zk->zk_zonename, zone->zone_name); 1194*0209230bSgjelinek kstat_named_init(&zk->zk_usage, "usage", KSTAT_DATA_UINT64); 1195*0209230bSgjelinek kstat_named_init(&zk->zk_value, "value", KSTAT_DATA_UINT64); 1196*0209230bSgjelinek ksp->ks_update = zone_lockedmem_kstat_update; 1197*0209230bSgjelinek ksp->ks_private = zone; 1198*0209230bSgjelinek kstat_install(ksp); 1199*0209230bSgjelinek 1200*0209230bSgjelinek zone->zone_lockedmem_kstat = ksp; 1201*0209230bSgjelinek 1202*0209230bSgjelinek ksp = rctl_kstat_create_zone(zone, "swapresv", KSTAT_TYPE_NAMED, 1203*0209230bSgjelinek sizeof (zone_kstat_t) / sizeof (kstat_named_t), 1204*0209230bSgjelinek KSTAT_FLAG_VIRTUAL); 1205*0209230bSgjelinek 1206*0209230bSgjelinek if (ksp == NULL) 1207*0209230bSgjelinek return; 1208*0209230bSgjelinek 1209*0209230bSgjelinek zk = ksp->ks_data = kmem_alloc(sizeof (zone_kstat_t), KM_SLEEP); 1210*0209230bSgjelinek ksp->ks_data_size += strlen(zone->zone_name) + 1; 1211*0209230bSgjelinek kstat_named_init(&zk->zk_zonename, "zonename", KSTAT_DATA_STRING); 1212*0209230bSgjelinek kstat_named_setstr(&zk->zk_zonename, zone->zone_name); 1213*0209230bSgjelinek kstat_named_init(&zk->zk_usage, "usage", KSTAT_DATA_UINT64); 1214*0209230bSgjelinek kstat_named_init(&zk->zk_value, "value", KSTAT_DATA_UINT64); 1215*0209230bSgjelinek ksp->ks_update = zone_swapresv_kstat_update; 1216*0209230bSgjelinek ksp->ks_private = zone; 1217*0209230bSgjelinek kstat_install(ksp); 1218*0209230bSgjelinek 1219*0209230bSgjelinek zone->zone_swapresv_kstat = ksp; 1220*0209230bSgjelinek } 1221*0209230bSgjelinek 1222*0209230bSgjelinek static void 1223*0209230bSgjelinek zone_kstat_delete(zone_t *zone) 1224*0209230bSgjelinek { 1225*0209230bSgjelinek void *data; 1226*0209230bSgjelinek 1227*0209230bSgjelinek if (zone->zone_lockedmem_kstat != NULL) { 1228*0209230bSgjelinek data = zone->zone_lockedmem_kstat->ks_data; 1229*0209230bSgjelinek kstat_delete(zone->zone_lockedmem_kstat); 1230*0209230bSgjelinek kmem_free(data, sizeof (zone_kstat_t)); 1231*0209230bSgjelinek } 1232*0209230bSgjelinek if (zone->zone_swapresv_kstat != NULL) { 1233*0209230bSgjelinek data = zone->zone_swapresv_kstat->ks_data; 1234*0209230bSgjelinek kstat_delete(zone->zone_swapresv_kstat); 1235*0209230bSgjelinek kmem_free(data, sizeof (zone_kstat_t)); 1236*0209230bSgjelinek } 1237*0209230bSgjelinek } 1238*0209230bSgjelinek 12397c478bd9Sstevel@tonic-gate /* 12407c478bd9Sstevel@tonic-gate * Called very early on in boot to initialize the ZSD list so that 12417c478bd9Sstevel@tonic-gate * zone_key_create() can be called before zone_init(). It also initializes 12427c478bd9Sstevel@tonic-gate * portions of zone0 which may be used before zone_init() is called. The 12437c478bd9Sstevel@tonic-gate * variable "global_zone" will be set when zone0 is fully initialized by 12447c478bd9Sstevel@tonic-gate * zone_init(). 12457c478bd9Sstevel@tonic-gate */ 12467c478bd9Sstevel@tonic-gate void 12477c478bd9Sstevel@tonic-gate zone_zsd_init(void) 12487c478bd9Sstevel@tonic-gate { 12497c478bd9Sstevel@tonic-gate mutex_init(&zonehash_lock, NULL, MUTEX_DEFAULT, NULL); 12507c478bd9Sstevel@tonic-gate mutex_init(&zsd_key_lock, NULL, MUTEX_DEFAULT, NULL); 12517c478bd9Sstevel@tonic-gate list_create(&zsd_registered_keys, sizeof (struct zsd_entry), 12527c478bd9Sstevel@tonic-gate offsetof(struct zsd_entry, zsd_linkage)); 12537c478bd9Sstevel@tonic-gate list_create(&zone_active, sizeof (zone_t), 12547c478bd9Sstevel@tonic-gate offsetof(zone_t, zone_linkage)); 12557c478bd9Sstevel@tonic-gate list_create(&zone_deathrow, sizeof (zone_t), 12567c478bd9Sstevel@tonic-gate offsetof(zone_t, zone_linkage)); 12577c478bd9Sstevel@tonic-gate 12587c478bd9Sstevel@tonic-gate mutex_init(&zone0.zone_lock, NULL, MUTEX_DEFAULT, NULL); 12597c478bd9Sstevel@tonic-gate mutex_init(&zone0.zone_nlwps_lock, NULL, MUTEX_DEFAULT, NULL); 1260*0209230bSgjelinek mutex_init(&zone0.zone_mem_lock, NULL, MUTEX_DEFAULT, NULL); 12617c478bd9Sstevel@tonic-gate zone0.zone_shares = 1; 1262*0209230bSgjelinek zone0.zone_nlwps = 0; 12637c478bd9Sstevel@tonic-gate zone0.zone_nlwps_ctl = INT_MAX; 1264*0209230bSgjelinek zone0.zone_locked_mem = 0; 1265*0209230bSgjelinek zone0.zone_locked_mem_ctl = UINT64_MAX; 1266*0209230bSgjelinek ASSERT(zone0.zone_max_swap == 0); 1267*0209230bSgjelinek zone0.zone_max_swap_ctl = UINT64_MAX; 1268824c205fSml zone0.zone_shmmax = 0; 1269824c205fSml zone0.zone_ipc.ipcq_shmmni = 0; 1270824c205fSml zone0.zone_ipc.ipcq_semmni = 0; 1271824c205fSml zone0.zone_ipc.ipcq_msgmni = 0; 12727c478bd9Sstevel@tonic-gate zone0.zone_name = GLOBAL_ZONENAME; 12737c478bd9Sstevel@tonic-gate zone0.zone_nodename = utsname.nodename; 12747c478bd9Sstevel@tonic-gate zone0.zone_domain = srpc_domain; 12757c478bd9Sstevel@tonic-gate zone0.zone_ref = 1; 12767c478bd9Sstevel@tonic-gate zone0.zone_id = GLOBAL_ZONEID; 12777c478bd9Sstevel@tonic-gate zone0.zone_status = ZONE_IS_RUNNING; 12787c478bd9Sstevel@tonic-gate zone0.zone_rootpath = "/"; 12797c478bd9Sstevel@tonic-gate zone0.zone_rootpathlen = 2; 12807c478bd9Sstevel@tonic-gate zone0.zone_psetid = ZONE_PS_INVAL; 12817c478bd9Sstevel@tonic-gate zone0.zone_ncpus = 0; 12827c478bd9Sstevel@tonic-gate zone0.zone_ncpus_online = 0; 12837c478bd9Sstevel@tonic-gate zone0.zone_proc_initpid = 1; 12843f2f09c1Sdp zone0.zone_initname = initname; 1285*0209230bSgjelinek zone0.zone_lockedmem_kstat = NULL; 1286*0209230bSgjelinek zone0.zone_swapresv_kstat = NULL; 12877c478bd9Sstevel@tonic-gate list_create(&zone0.zone_zsd, sizeof (struct zsd_entry), 12887c478bd9Sstevel@tonic-gate offsetof(struct zsd_entry, zsd_linkage)); 12897c478bd9Sstevel@tonic-gate list_insert_head(&zone_active, &zone0); 12907c478bd9Sstevel@tonic-gate 12917c478bd9Sstevel@tonic-gate /* 12927c478bd9Sstevel@tonic-gate * The root filesystem is not mounted yet, so zone_rootvp cannot be set 12937c478bd9Sstevel@tonic-gate * to anything meaningful. It is assigned to be 'rootdir' in 12947c478bd9Sstevel@tonic-gate * vfs_mountroot(). 12957c478bd9Sstevel@tonic-gate */ 12967c478bd9Sstevel@tonic-gate zone0.zone_rootvp = NULL; 12977c478bd9Sstevel@tonic-gate zone0.zone_vfslist = NULL; 12983f2f09c1Sdp zone0.zone_bootargs = initargs; 12997c478bd9Sstevel@tonic-gate zone0.zone_privset = kmem_alloc(sizeof (priv_set_t), KM_SLEEP); 13007c478bd9Sstevel@tonic-gate /* 13017c478bd9Sstevel@tonic-gate * The global zone has all privileges 13027c478bd9Sstevel@tonic-gate */ 13037c478bd9Sstevel@tonic-gate priv_fillset(zone0.zone_privset); 13047c478bd9Sstevel@tonic-gate /* 13057c478bd9Sstevel@tonic-gate * Add p0 to the global zone 13067c478bd9Sstevel@tonic-gate */ 13077c478bd9Sstevel@tonic-gate zone0.zone_zsched = &p0; 13087c478bd9Sstevel@tonic-gate p0.p_zone = &zone0; 13097c478bd9Sstevel@tonic-gate } 13107c478bd9Sstevel@tonic-gate 131145916cd2Sjpk /* 131245916cd2Sjpk * Compute a hash value based on the contents of the label and the DOI. The 131345916cd2Sjpk * hash algorithm is somewhat arbitrary, but is based on the observation that 131445916cd2Sjpk * humans will likely pick labels that differ by amounts that work out to be 131545916cd2Sjpk * multiples of the number of hash chains, and thus stirring in some primes 131645916cd2Sjpk * should help. 131745916cd2Sjpk */ 131845916cd2Sjpk static uint_t 131945916cd2Sjpk hash_bylabel(void *hdata, mod_hash_key_t key) 132045916cd2Sjpk { 132145916cd2Sjpk const ts_label_t *lab = (ts_label_t *)key; 132245916cd2Sjpk const uint32_t *up, *ue; 132345916cd2Sjpk uint_t hash; 132445916cd2Sjpk int i; 132545916cd2Sjpk 132645916cd2Sjpk _NOTE(ARGUNUSED(hdata)); 132745916cd2Sjpk 132845916cd2Sjpk hash = lab->tsl_doi + (lab->tsl_doi << 1); 132945916cd2Sjpk /* we depend on alignment of label, but not representation */ 133045916cd2Sjpk up = (const uint32_t *)&lab->tsl_label; 133145916cd2Sjpk ue = up + sizeof (lab->tsl_label) / sizeof (*up); 133245916cd2Sjpk i = 1; 133345916cd2Sjpk while (up < ue) { 133445916cd2Sjpk /* using 2^n + 1, 1 <= n <= 16 as source of many primes */ 133545916cd2Sjpk hash += *up + (*up << ((i % 16) + 1)); 133645916cd2Sjpk up++; 133745916cd2Sjpk i++; 133845916cd2Sjpk } 133945916cd2Sjpk return (hash); 134045916cd2Sjpk } 134145916cd2Sjpk 134245916cd2Sjpk /* 134345916cd2Sjpk * All that mod_hash cares about here is zero (equal) versus non-zero (not 134445916cd2Sjpk * equal). This may need to be changed if less than / greater than is ever 134545916cd2Sjpk * needed. 134645916cd2Sjpk */ 134745916cd2Sjpk static int 134845916cd2Sjpk hash_labelkey_cmp(mod_hash_key_t key1, mod_hash_key_t key2) 134945916cd2Sjpk { 135045916cd2Sjpk ts_label_t *lab1 = (ts_label_t *)key1; 135145916cd2Sjpk ts_label_t *lab2 = (ts_label_t *)key2; 135245916cd2Sjpk 135345916cd2Sjpk return (label_equal(lab1, lab2) ? 0 : 1); 135445916cd2Sjpk } 135545916cd2Sjpk 13567c478bd9Sstevel@tonic-gate /* 13577c478bd9Sstevel@tonic-gate * Called by main() to initialize the zones framework. 13587c478bd9Sstevel@tonic-gate */ 13597c478bd9Sstevel@tonic-gate void 13607c478bd9Sstevel@tonic-gate zone_init(void) 13617c478bd9Sstevel@tonic-gate { 13627c478bd9Sstevel@tonic-gate rctl_dict_entry_t *rde; 13637c478bd9Sstevel@tonic-gate rctl_val_t *dval; 13647c478bd9Sstevel@tonic-gate rctl_set_t *set; 13657c478bd9Sstevel@tonic-gate rctl_alloc_gp_t *gp; 13667c478bd9Sstevel@tonic-gate rctl_entity_p_t e; 1367cf8f45c7Sdstaff int res; 13687c478bd9Sstevel@tonic-gate 13697c478bd9Sstevel@tonic-gate ASSERT(curproc == &p0); 13707c478bd9Sstevel@tonic-gate 13717c478bd9Sstevel@tonic-gate /* 13727c478bd9Sstevel@tonic-gate * Create ID space for zone IDs. ID 0 is reserved for the 13737c478bd9Sstevel@tonic-gate * global zone. 13747c478bd9Sstevel@tonic-gate */ 13757c478bd9Sstevel@tonic-gate zoneid_space = id_space_create("zoneid_space", 1, MAX_ZONEID); 13767c478bd9Sstevel@tonic-gate 13777c478bd9Sstevel@tonic-gate /* 13787c478bd9Sstevel@tonic-gate * Initialize generic zone resource controls, if any. 13797c478bd9Sstevel@tonic-gate */ 13807c478bd9Sstevel@tonic-gate rc_zone_cpu_shares = rctl_register("zone.cpu-shares", 13817c478bd9Sstevel@tonic-gate RCENTITY_ZONE, RCTL_GLOBAL_SIGNAL_NEVER | RCTL_GLOBAL_DENY_NEVER | 138219f92332Sml RCTL_GLOBAL_NOBASIC | RCTL_GLOBAL_COUNT | RCTL_GLOBAL_SYSLOG_NEVER, 138319f92332Sml FSS_MAXSHARES, FSS_MAXSHARES, 13847c478bd9Sstevel@tonic-gate &zone_cpu_shares_ops); 13857c478bd9Sstevel@tonic-gate 13867c478bd9Sstevel@tonic-gate rc_zone_nlwps = rctl_register("zone.max-lwps", RCENTITY_ZONE, 13877c478bd9Sstevel@tonic-gate RCTL_GLOBAL_NOACTION | RCTL_GLOBAL_NOBASIC | RCTL_GLOBAL_COUNT, 13887c478bd9Sstevel@tonic-gate INT_MAX, INT_MAX, &zone_lwps_ops); 1389824c205fSml /* 1390824c205fSml * System V IPC resource controls 1391824c205fSml */ 1392824c205fSml rc_zone_msgmni = rctl_register("zone.max-msg-ids", 1393824c205fSml RCENTITY_ZONE, RCTL_GLOBAL_DENY_ALWAYS | RCTL_GLOBAL_NOBASIC | 1394824c205fSml RCTL_GLOBAL_COUNT, IPC_IDS_MAX, IPC_IDS_MAX, &zone_msgmni_ops); 1395824c205fSml 1396824c205fSml rc_zone_semmni = rctl_register("zone.max-sem-ids", 1397824c205fSml RCENTITY_ZONE, RCTL_GLOBAL_DENY_ALWAYS | RCTL_GLOBAL_NOBASIC | 1398824c205fSml RCTL_GLOBAL_COUNT, IPC_IDS_MAX, IPC_IDS_MAX, &zone_semmni_ops); 1399824c205fSml 1400824c205fSml rc_zone_shmmni = rctl_register("zone.max-shm-ids", 1401824c205fSml RCENTITY_ZONE, RCTL_GLOBAL_DENY_ALWAYS | RCTL_GLOBAL_NOBASIC | 1402824c205fSml RCTL_GLOBAL_COUNT, IPC_IDS_MAX, IPC_IDS_MAX, &zone_shmmni_ops); 1403824c205fSml 1404824c205fSml rc_zone_shmmax = rctl_register("zone.max-shm-memory", 1405824c205fSml RCENTITY_ZONE, RCTL_GLOBAL_DENY_ALWAYS | RCTL_GLOBAL_NOBASIC | 1406824c205fSml RCTL_GLOBAL_BYTES, UINT64_MAX, UINT64_MAX, &zone_shmmax_ops); 1407824c205fSml 14087c478bd9Sstevel@tonic-gate /* 14097c478bd9Sstevel@tonic-gate * Create a rctl_val with PRIVILEGED, NOACTION, value = 1. Then attach 14107c478bd9Sstevel@tonic-gate * this at the head of the rctl_dict_entry for ``zone.cpu-shares''. 14117c478bd9Sstevel@tonic-gate */ 14127c478bd9Sstevel@tonic-gate dval = kmem_cache_alloc(rctl_val_cache, KM_SLEEP); 14137c478bd9Sstevel@tonic-gate bzero(dval, sizeof (rctl_val_t)); 14147c478bd9Sstevel@tonic-gate dval->rcv_value = 1; 14157c478bd9Sstevel@tonic-gate dval->rcv_privilege = RCPRIV_PRIVILEGED; 14167c478bd9Sstevel@tonic-gate dval->rcv_flagaction = RCTL_LOCAL_NOACTION; 14177c478bd9Sstevel@tonic-gate dval->rcv_action_recip_pid = -1; 14187c478bd9Sstevel@tonic-gate 14197c478bd9Sstevel@tonic-gate rde = rctl_dict_lookup("zone.cpu-shares"); 14207c478bd9Sstevel@tonic-gate (void) rctl_val_list_insert(&rde->rcd_default_value, dval); 14217c478bd9Sstevel@tonic-gate 1422c6939658Ssl rc_zone_locked_mem = rctl_register("zone.max-locked-memory", 1423c6939658Ssl RCENTITY_ZONE, RCTL_GLOBAL_NOBASIC | RCTL_GLOBAL_BYTES | 1424c6939658Ssl RCTL_GLOBAL_DENY_ALWAYS, UINT64_MAX, UINT64_MAX, 1425c6939658Ssl &zone_locked_mem_ops); 1426*0209230bSgjelinek 1427*0209230bSgjelinek rc_zone_max_swap = rctl_register("zone.max-swap", 1428*0209230bSgjelinek RCENTITY_ZONE, RCTL_GLOBAL_NOBASIC | RCTL_GLOBAL_BYTES | 1429*0209230bSgjelinek RCTL_GLOBAL_DENY_ALWAYS, UINT64_MAX, UINT64_MAX, 1430*0209230bSgjelinek &zone_max_swap_ops); 1431*0209230bSgjelinek 14327c478bd9Sstevel@tonic-gate /* 14337c478bd9Sstevel@tonic-gate * Initialize the ``global zone''. 14347c478bd9Sstevel@tonic-gate */ 14357c478bd9Sstevel@tonic-gate set = rctl_set_create(); 14367c478bd9Sstevel@tonic-gate gp = rctl_set_init_prealloc(RCENTITY_ZONE); 14377c478bd9Sstevel@tonic-gate mutex_enter(&p0.p_lock); 14387c478bd9Sstevel@tonic-gate e.rcep_p.zone = &zone0; 14397c478bd9Sstevel@tonic-gate e.rcep_t = RCENTITY_ZONE; 14407c478bd9Sstevel@tonic-gate zone0.zone_rctls = rctl_set_init(RCENTITY_ZONE, &p0, &e, set, 14417c478bd9Sstevel@tonic-gate gp); 14427c478bd9Sstevel@tonic-gate 14437c478bd9Sstevel@tonic-gate zone0.zone_nlwps = p0.p_lwpcnt; 14447c478bd9Sstevel@tonic-gate zone0.zone_ntasks = 1; 14457c478bd9Sstevel@tonic-gate mutex_exit(&p0.p_lock); 14469acbbeafSnn zone0.zone_restart_init = B_TRUE; 14479acbbeafSnn zone0.zone_brand = &native_brand; 14487c478bd9Sstevel@tonic-gate rctl_prealloc_destroy(gp); 14497c478bd9Sstevel@tonic-gate /* 1450*0209230bSgjelinek * pool_default hasn't been initialized yet, so we let pool_init() 1451*0209230bSgjelinek * take care of making sure the global zone is in the default pool. 1452*0209230bSgjelinek */ 1453*0209230bSgjelinek 1454*0209230bSgjelinek /* 1455*0209230bSgjelinek * Initialize global zone kstats 14567c478bd9Sstevel@tonic-gate */ 1457*0209230bSgjelinek zone_kstat_create(&zone0); 145845916cd2Sjpk 145945916cd2Sjpk /* 146045916cd2Sjpk * Initialize zone label. 146145916cd2Sjpk * mlp are initialized when tnzonecfg is loaded. 146245916cd2Sjpk */ 146345916cd2Sjpk zone0.zone_slabel = l_admin_low; 146445916cd2Sjpk rw_init(&zone0.zone_mlps.mlpl_rwlock, NULL, RW_DEFAULT, NULL); 146545916cd2Sjpk label_hold(l_admin_low); 146645916cd2Sjpk 14677c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 14687c478bd9Sstevel@tonic-gate zone_uniqid(&zone0); 14697c478bd9Sstevel@tonic-gate ASSERT(zone0.zone_uniqid == GLOBAL_ZONEUNIQID); 147045916cd2Sjpk 14717c478bd9Sstevel@tonic-gate zonehashbyid = mod_hash_create_idhash("zone_by_id", zone_hash_size, 14727c478bd9Sstevel@tonic-gate mod_hash_null_valdtor); 14737c478bd9Sstevel@tonic-gate zonehashbyname = mod_hash_create_strhash("zone_by_name", 14747c478bd9Sstevel@tonic-gate zone_hash_size, mod_hash_null_valdtor); 147545916cd2Sjpk /* 147645916cd2Sjpk * maintain zonehashbylabel only for labeled systems 147745916cd2Sjpk */ 147845916cd2Sjpk if (is_system_labeled()) 147945916cd2Sjpk zonehashbylabel = mod_hash_create_extended("zone_by_label", 148045916cd2Sjpk zone_hash_size, mod_hash_null_keydtor, 148145916cd2Sjpk mod_hash_null_valdtor, hash_bylabel, NULL, 148245916cd2Sjpk hash_labelkey_cmp, KM_SLEEP); 14837c478bd9Sstevel@tonic-gate zonecount = 1; 14847c478bd9Sstevel@tonic-gate 14857c478bd9Sstevel@tonic-gate (void) mod_hash_insert(zonehashbyid, (mod_hash_key_t)GLOBAL_ZONEID, 14867c478bd9Sstevel@tonic-gate (mod_hash_val_t)&zone0); 14877c478bd9Sstevel@tonic-gate (void) mod_hash_insert(zonehashbyname, (mod_hash_key_t)zone0.zone_name, 14887c478bd9Sstevel@tonic-gate (mod_hash_val_t)&zone0); 148948451833Scarlsonj if (is_system_labeled()) { 149048451833Scarlsonj zone0.zone_flags |= ZF_HASHED_LABEL; 149145916cd2Sjpk (void) mod_hash_insert(zonehashbylabel, 149245916cd2Sjpk (mod_hash_key_t)zone0.zone_slabel, (mod_hash_val_t)&zone0); 149348451833Scarlsonj } 149445916cd2Sjpk mutex_exit(&zonehash_lock); 149545916cd2Sjpk 14967c478bd9Sstevel@tonic-gate /* 14977c478bd9Sstevel@tonic-gate * We avoid setting zone_kcred until now, since kcred is initialized 14987c478bd9Sstevel@tonic-gate * sometime after zone_zsd_init() and before zone_init(). 14997c478bd9Sstevel@tonic-gate */ 15007c478bd9Sstevel@tonic-gate zone0.zone_kcred = kcred; 15017c478bd9Sstevel@tonic-gate /* 15027c478bd9Sstevel@tonic-gate * The global zone is fully initialized (except for zone_rootvp which 15037c478bd9Sstevel@tonic-gate * will be set when the root filesystem is mounted). 15047c478bd9Sstevel@tonic-gate */ 15057c478bd9Sstevel@tonic-gate global_zone = &zone0; 1506cf8f45c7Sdstaff 1507cf8f45c7Sdstaff /* 1508cf8f45c7Sdstaff * Setup an event channel to send zone status change notifications on 1509cf8f45c7Sdstaff */ 1510cf8f45c7Sdstaff res = sysevent_evc_bind(ZONE_EVENT_CHANNEL, &zone_event_chan, 1511cf8f45c7Sdstaff EVCH_CREAT); 1512cf8f45c7Sdstaff 1513cf8f45c7Sdstaff if (res) 1514cf8f45c7Sdstaff panic("Sysevent_evc_bind failed during zone setup.\n"); 1515*0209230bSgjelinek 15167c478bd9Sstevel@tonic-gate } 15177c478bd9Sstevel@tonic-gate 15187c478bd9Sstevel@tonic-gate static void 15197c478bd9Sstevel@tonic-gate zone_free(zone_t *zone) 15207c478bd9Sstevel@tonic-gate { 15217c478bd9Sstevel@tonic-gate ASSERT(zone != global_zone); 15227c478bd9Sstevel@tonic-gate ASSERT(zone->zone_ntasks == 0); 15237c478bd9Sstevel@tonic-gate ASSERT(zone->zone_nlwps == 0); 15247c478bd9Sstevel@tonic-gate ASSERT(zone->zone_cred_ref == 0); 15257c478bd9Sstevel@tonic-gate ASSERT(zone->zone_kcred == NULL); 15267c478bd9Sstevel@tonic-gate ASSERT(zone_status_get(zone) == ZONE_IS_DEAD || 15277c478bd9Sstevel@tonic-gate zone_status_get(zone) == ZONE_IS_UNINITIALIZED); 15287c478bd9Sstevel@tonic-gate 15297c478bd9Sstevel@tonic-gate /* remove from deathrow list */ 15307c478bd9Sstevel@tonic-gate if (zone_status_get(zone) == ZONE_IS_DEAD) { 15317c478bd9Sstevel@tonic-gate ASSERT(zone->zone_ref == 0); 15327c478bd9Sstevel@tonic-gate mutex_enter(&zone_deathrow_lock); 15337c478bd9Sstevel@tonic-gate list_remove(&zone_deathrow, zone); 15347c478bd9Sstevel@tonic-gate mutex_exit(&zone_deathrow_lock); 15357c478bd9Sstevel@tonic-gate } 15367c478bd9Sstevel@tonic-gate 15377c478bd9Sstevel@tonic-gate zone_free_zsd(zone); 1538fa9e4066Sahrens zone_free_datasets(zone); 15397c478bd9Sstevel@tonic-gate 15407c478bd9Sstevel@tonic-gate if (zone->zone_rootvp != NULL) 15417c478bd9Sstevel@tonic-gate VN_RELE(zone->zone_rootvp); 15427c478bd9Sstevel@tonic-gate if (zone->zone_rootpath) 15437c478bd9Sstevel@tonic-gate kmem_free(zone->zone_rootpath, zone->zone_rootpathlen); 15447c478bd9Sstevel@tonic-gate if (zone->zone_name != NULL) 15457c478bd9Sstevel@tonic-gate kmem_free(zone->zone_name, ZONENAME_MAX); 154645916cd2Sjpk if (zone->zone_slabel != NULL) 154745916cd2Sjpk label_rele(zone->zone_slabel); 15487c478bd9Sstevel@tonic-gate if (zone->zone_nodename != NULL) 15497c478bd9Sstevel@tonic-gate kmem_free(zone->zone_nodename, _SYS_NMLN); 15507c478bd9Sstevel@tonic-gate if (zone->zone_domain != NULL) 15517c478bd9Sstevel@tonic-gate kmem_free(zone->zone_domain, _SYS_NMLN); 15527c478bd9Sstevel@tonic-gate if (zone->zone_privset != NULL) 15537c478bd9Sstevel@tonic-gate kmem_free(zone->zone_privset, sizeof (priv_set_t)); 15547c478bd9Sstevel@tonic-gate if (zone->zone_rctls != NULL) 15557c478bd9Sstevel@tonic-gate rctl_set_free(zone->zone_rctls); 15567c478bd9Sstevel@tonic-gate if (zone->zone_bootargs != NULL) 15573f2f09c1Sdp kmem_free(zone->zone_bootargs, strlen(zone->zone_bootargs) + 1); 15583f2f09c1Sdp if (zone->zone_initname != NULL) 15593f2f09c1Sdp kmem_free(zone->zone_initname, strlen(zone->zone_initname) + 1); 15607c478bd9Sstevel@tonic-gate id_free(zoneid_space, zone->zone_id); 15617c478bd9Sstevel@tonic-gate mutex_destroy(&zone->zone_lock); 15627c478bd9Sstevel@tonic-gate cv_destroy(&zone->zone_cv); 156345916cd2Sjpk rw_destroy(&zone->zone_mlps.mlpl_rwlock); 15647c478bd9Sstevel@tonic-gate kmem_free(zone, sizeof (zone_t)); 15657c478bd9Sstevel@tonic-gate } 15667c478bd9Sstevel@tonic-gate 15677c478bd9Sstevel@tonic-gate /* 15687c478bd9Sstevel@tonic-gate * See block comment at the top of this file for information about zone 15697c478bd9Sstevel@tonic-gate * status values. 15707c478bd9Sstevel@tonic-gate */ 15717c478bd9Sstevel@tonic-gate /* 15727c478bd9Sstevel@tonic-gate * Convenience function for setting zone status. 15737c478bd9Sstevel@tonic-gate */ 15747c478bd9Sstevel@tonic-gate static void 15757c478bd9Sstevel@tonic-gate zone_status_set(zone_t *zone, zone_status_t status) 15767c478bd9Sstevel@tonic-gate { 1577cf8f45c7Sdstaff 1578cf8f45c7Sdstaff nvlist_t *nvl = NULL; 15797c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zone_status_lock)); 15807c478bd9Sstevel@tonic-gate ASSERT(status > ZONE_MIN_STATE && status <= ZONE_MAX_STATE && 15817c478bd9Sstevel@tonic-gate status >= zone_status_get(zone)); 1582cf8f45c7Sdstaff 1583cf8f45c7Sdstaff if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP) || 1584cf8f45c7Sdstaff nvlist_add_string(nvl, ZONE_CB_NAME, zone->zone_name) || 1585cf8f45c7Sdstaff nvlist_add_string(nvl, ZONE_CB_NEWSTATE, 15863f2f09c1Sdp zone_status_table[status]) || 1587cf8f45c7Sdstaff nvlist_add_string(nvl, ZONE_CB_OLDSTATE, 15883f2f09c1Sdp zone_status_table[zone->zone_status]) || 1589cf8f45c7Sdstaff nvlist_add_int32(nvl, ZONE_CB_ZONEID, zone->zone_id) || 1590cf8f45c7Sdstaff nvlist_add_uint64(nvl, ZONE_CB_TIMESTAMP, (uint64_t)gethrtime()) || 1591cf8f45c7Sdstaff sysevent_evc_publish(zone_event_chan, ZONE_EVENT_STATUS_CLASS, 15923f2f09c1Sdp ZONE_EVENT_STATUS_SUBCLASS, "sun.com", "kernel", nvl, EVCH_SLEEP)) { 1593cf8f45c7Sdstaff #ifdef DEBUG 1594cf8f45c7Sdstaff (void) printf( 1595cf8f45c7Sdstaff "Failed to allocate and send zone state change event.\n"); 1596cf8f45c7Sdstaff #endif 1597cf8f45c7Sdstaff } 1598cf8f45c7Sdstaff nvlist_free(nvl); 1599cf8f45c7Sdstaff 16007c478bd9Sstevel@tonic-gate zone->zone_status = status; 1601cf8f45c7Sdstaff 16027c478bd9Sstevel@tonic-gate cv_broadcast(&zone->zone_cv); 16037c478bd9Sstevel@tonic-gate } 16047c478bd9Sstevel@tonic-gate 16057c478bd9Sstevel@tonic-gate /* 16067c478bd9Sstevel@tonic-gate * Public function to retrieve the zone status. The zone status may 16077c478bd9Sstevel@tonic-gate * change after it is retrieved. 16087c478bd9Sstevel@tonic-gate */ 16097c478bd9Sstevel@tonic-gate zone_status_t 16107c478bd9Sstevel@tonic-gate zone_status_get(zone_t *zone) 16117c478bd9Sstevel@tonic-gate { 16127c478bd9Sstevel@tonic-gate return (zone->zone_status); 16137c478bd9Sstevel@tonic-gate } 16147c478bd9Sstevel@tonic-gate 16157c478bd9Sstevel@tonic-gate static int 16167c478bd9Sstevel@tonic-gate zone_set_bootargs(zone_t *zone, const char *zone_bootargs) 16177c478bd9Sstevel@tonic-gate { 16183f2f09c1Sdp char *bootargs = kmem_zalloc(BOOTARGS_MAX, KM_SLEEP); 16193f2f09c1Sdp int err = 0; 16203f2f09c1Sdp 16213f2f09c1Sdp ASSERT(zone != global_zone); 16223f2f09c1Sdp if ((err = copyinstr(zone_bootargs, bootargs, BOOTARGS_MAX, NULL)) != 0) 16233f2f09c1Sdp goto done; /* EFAULT or ENAMETOOLONG */ 16243f2f09c1Sdp 16253f2f09c1Sdp if (zone->zone_bootargs != NULL) 16263f2f09c1Sdp kmem_free(zone->zone_bootargs, strlen(zone->zone_bootargs) + 1); 16273f2f09c1Sdp 16283f2f09c1Sdp zone->zone_bootargs = kmem_alloc(strlen(bootargs) + 1, KM_SLEEP); 16293f2f09c1Sdp (void) strcpy(zone->zone_bootargs, bootargs); 16303f2f09c1Sdp 16313f2f09c1Sdp done: 16323f2f09c1Sdp kmem_free(bootargs, BOOTARGS_MAX); 16333f2f09c1Sdp return (err); 16343f2f09c1Sdp } 16353f2f09c1Sdp 16363f2f09c1Sdp static int 16373f2f09c1Sdp zone_set_initname(zone_t *zone, const char *zone_initname) 16383f2f09c1Sdp { 16393f2f09c1Sdp char initname[INITNAME_SZ]; 16407c478bd9Sstevel@tonic-gate size_t len; 16413f2f09c1Sdp int err = 0; 16427c478bd9Sstevel@tonic-gate 16433f2f09c1Sdp ASSERT(zone != global_zone); 16443f2f09c1Sdp if ((err = copyinstr(zone_initname, initname, INITNAME_SZ, &len)) != 0) 16457c478bd9Sstevel@tonic-gate return (err); /* EFAULT or ENAMETOOLONG */ 16467c478bd9Sstevel@tonic-gate 16473f2f09c1Sdp if (zone->zone_initname != NULL) 16483f2f09c1Sdp kmem_free(zone->zone_initname, strlen(zone->zone_initname) + 1); 16493f2f09c1Sdp 16503f2f09c1Sdp zone->zone_initname = kmem_alloc(strlen(initname) + 1, KM_SLEEP); 16513f2f09c1Sdp (void) strcpy(zone->zone_initname, initname); 16527c478bd9Sstevel@tonic-gate return (0); 16537c478bd9Sstevel@tonic-gate } 16547c478bd9Sstevel@tonic-gate 1655*0209230bSgjelinek static int 1656*0209230bSgjelinek zone_set_phys_mcap(zone_t *zone, const uint64_t *zone_mcap) 1657*0209230bSgjelinek { 1658*0209230bSgjelinek uint64_t mcap; 1659*0209230bSgjelinek int err = 0; 1660*0209230bSgjelinek 1661*0209230bSgjelinek if ((err = copyin(zone_mcap, &mcap, sizeof (uint64_t))) == 0) 1662*0209230bSgjelinek zone->zone_phys_mcap = mcap; 1663*0209230bSgjelinek 1664*0209230bSgjelinek return (err); 1665*0209230bSgjelinek } 1666*0209230bSgjelinek 1667*0209230bSgjelinek static int 1668*0209230bSgjelinek zone_set_sched_class(zone_t *zone, const char *new_class) 1669*0209230bSgjelinek { 1670*0209230bSgjelinek char sched_class[PC_CLNMSZ]; 1671*0209230bSgjelinek id_t classid; 1672*0209230bSgjelinek int err; 1673*0209230bSgjelinek 1674*0209230bSgjelinek ASSERT(zone != global_zone); 1675*0209230bSgjelinek if ((err = copyinstr(new_class, sched_class, PC_CLNMSZ, NULL)) != 0) 1676*0209230bSgjelinek return (err); /* EFAULT or ENAMETOOLONG */ 1677*0209230bSgjelinek 1678*0209230bSgjelinek if (getcid(sched_class, &classid) != 0 || classid == syscid) 1679*0209230bSgjelinek return (set_errno(EINVAL)); 1680*0209230bSgjelinek zone->zone_defaultcid = classid; 1681*0209230bSgjelinek ASSERT(zone->zone_defaultcid > 0 && 1682*0209230bSgjelinek zone->zone_defaultcid < loaded_classes); 1683*0209230bSgjelinek 1684*0209230bSgjelinek return (0); 1685*0209230bSgjelinek } 1686*0209230bSgjelinek 16877c478bd9Sstevel@tonic-gate /* 16887c478bd9Sstevel@tonic-gate * Block indefinitely waiting for (zone_status >= status) 16897c478bd9Sstevel@tonic-gate */ 16907c478bd9Sstevel@tonic-gate void 16917c478bd9Sstevel@tonic-gate zone_status_wait(zone_t *zone, zone_status_t status) 16927c478bd9Sstevel@tonic-gate { 16937c478bd9Sstevel@tonic-gate ASSERT(status > ZONE_MIN_STATE && status <= ZONE_MAX_STATE); 16947c478bd9Sstevel@tonic-gate 16957c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 16967c478bd9Sstevel@tonic-gate while (zone->zone_status < status) { 16977c478bd9Sstevel@tonic-gate cv_wait(&zone->zone_cv, &zone_status_lock); 16987c478bd9Sstevel@tonic-gate } 16997c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 17007c478bd9Sstevel@tonic-gate } 17017c478bd9Sstevel@tonic-gate 17027c478bd9Sstevel@tonic-gate /* 17037c478bd9Sstevel@tonic-gate * Private CPR-safe version of zone_status_wait(). 17047c478bd9Sstevel@tonic-gate */ 17057c478bd9Sstevel@tonic-gate static void 17067c478bd9Sstevel@tonic-gate zone_status_wait_cpr(zone_t *zone, zone_status_t status, char *str) 17077c478bd9Sstevel@tonic-gate { 17087c478bd9Sstevel@tonic-gate callb_cpr_t cprinfo; 17097c478bd9Sstevel@tonic-gate 17107c478bd9Sstevel@tonic-gate ASSERT(status > ZONE_MIN_STATE && status <= ZONE_MAX_STATE); 17117c478bd9Sstevel@tonic-gate 17127c478bd9Sstevel@tonic-gate CALLB_CPR_INIT(&cprinfo, &zone_status_lock, callb_generic_cpr, 17137c478bd9Sstevel@tonic-gate str); 17147c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 17157c478bd9Sstevel@tonic-gate while (zone->zone_status < status) { 17167c478bd9Sstevel@tonic-gate CALLB_CPR_SAFE_BEGIN(&cprinfo); 17177c478bd9Sstevel@tonic-gate cv_wait(&zone->zone_cv, &zone_status_lock); 17187c478bd9Sstevel@tonic-gate CALLB_CPR_SAFE_END(&cprinfo, &zone_status_lock); 17197c478bd9Sstevel@tonic-gate } 17207c478bd9Sstevel@tonic-gate /* 17217c478bd9Sstevel@tonic-gate * zone_status_lock is implicitly released by the following. 17227c478bd9Sstevel@tonic-gate */ 17237c478bd9Sstevel@tonic-gate CALLB_CPR_EXIT(&cprinfo); 17247c478bd9Sstevel@tonic-gate } 17257c478bd9Sstevel@tonic-gate 17267c478bd9Sstevel@tonic-gate /* 17277c478bd9Sstevel@tonic-gate * Block until zone enters requested state or signal is received. Return (0) 17287c478bd9Sstevel@tonic-gate * if signaled, non-zero otherwise. 17297c478bd9Sstevel@tonic-gate */ 17307c478bd9Sstevel@tonic-gate int 17317c478bd9Sstevel@tonic-gate zone_status_wait_sig(zone_t *zone, zone_status_t status) 17327c478bd9Sstevel@tonic-gate { 17337c478bd9Sstevel@tonic-gate ASSERT(status > ZONE_MIN_STATE && status <= ZONE_MAX_STATE); 17347c478bd9Sstevel@tonic-gate 17357c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 17367c478bd9Sstevel@tonic-gate while (zone->zone_status < status) { 17377c478bd9Sstevel@tonic-gate if (!cv_wait_sig(&zone->zone_cv, &zone_status_lock)) { 17387c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 17397c478bd9Sstevel@tonic-gate return (0); 17407c478bd9Sstevel@tonic-gate } 17417c478bd9Sstevel@tonic-gate } 17427c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 17437c478bd9Sstevel@tonic-gate return (1); 17447c478bd9Sstevel@tonic-gate } 17457c478bd9Sstevel@tonic-gate 17467c478bd9Sstevel@tonic-gate /* 17477c478bd9Sstevel@tonic-gate * Block until the zone enters the requested state or the timeout expires, 17487c478bd9Sstevel@tonic-gate * whichever happens first. Return (-1) if operation timed out, time remaining 17497c478bd9Sstevel@tonic-gate * otherwise. 17507c478bd9Sstevel@tonic-gate */ 17517c478bd9Sstevel@tonic-gate clock_t 17527c478bd9Sstevel@tonic-gate zone_status_timedwait(zone_t *zone, clock_t tim, zone_status_t status) 17537c478bd9Sstevel@tonic-gate { 17547c478bd9Sstevel@tonic-gate clock_t timeleft = 0; 17557c478bd9Sstevel@tonic-gate 17567c478bd9Sstevel@tonic-gate ASSERT(status > ZONE_MIN_STATE && status <= ZONE_MAX_STATE); 17577c478bd9Sstevel@tonic-gate 17587c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 17597c478bd9Sstevel@tonic-gate while (zone->zone_status < status && timeleft != -1) { 17607c478bd9Sstevel@tonic-gate timeleft = cv_timedwait(&zone->zone_cv, &zone_status_lock, tim); 17617c478bd9Sstevel@tonic-gate } 17627c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 17637c478bd9Sstevel@tonic-gate return (timeleft); 17647c478bd9Sstevel@tonic-gate } 17657c478bd9Sstevel@tonic-gate 17667c478bd9Sstevel@tonic-gate /* 17677c478bd9Sstevel@tonic-gate * Block until the zone enters the requested state, the current process is 17687c478bd9Sstevel@tonic-gate * signaled, or the timeout expires, whichever happens first. Return (-1) if 17697c478bd9Sstevel@tonic-gate * operation timed out, 0 if signaled, time remaining otherwise. 17707c478bd9Sstevel@tonic-gate */ 17717c478bd9Sstevel@tonic-gate clock_t 17727c478bd9Sstevel@tonic-gate zone_status_timedwait_sig(zone_t *zone, clock_t tim, zone_status_t status) 17737c478bd9Sstevel@tonic-gate { 17747c478bd9Sstevel@tonic-gate clock_t timeleft = tim - lbolt; 17757c478bd9Sstevel@tonic-gate 17767c478bd9Sstevel@tonic-gate ASSERT(status > ZONE_MIN_STATE && status <= ZONE_MAX_STATE); 17777c478bd9Sstevel@tonic-gate 17787c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 17797c478bd9Sstevel@tonic-gate while (zone->zone_status < status) { 17807c478bd9Sstevel@tonic-gate timeleft = cv_timedwait_sig(&zone->zone_cv, &zone_status_lock, 17817c478bd9Sstevel@tonic-gate tim); 17827c478bd9Sstevel@tonic-gate if (timeleft <= 0) 17837c478bd9Sstevel@tonic-gate break; 17847c478bd9Sstevel@tonic-gate } 17857c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 17867c478bd9Sstevel@tonic-gate return (timeleft); 17877c478bd9Sstevel@tonic-gate } 17887c478bd9Sstevel@tonic-gate 17897c478bd9Sstevel@tonic-gate /* 17907c478bd9Sstevel@tonic-gate * Zones have two reference counts: one for references from credential 17917c478bd9Sstevel@tonic-gate * structures (zone_cred_ref), and one (zone_ref) for everything else. 17927c478bd9Sstevel@tonic-gate * This is so we can allow a zone to be rebooted while there are still 17937c478bd9Sstevel@tonic-gate * outstanding cred references, since certain drivers cache dblks (which 17947c478bd9Sstevel@tonic-gate * implicitly results in cached creds). We wait for zone_ref to drop to 17957c478bd9Sstevel@tonic-gate * 0 (actually 1), but not zone_cred_ref. The zone structure itself is 17967c478bd9Sstevel@tonic-gate * later freed when the zone_cred_ref drops to 0, though nothing other 17977c478bd9Sstevel@tonic-gate * than the zone id and privilege set should be accessed once the zone 17987c478bd9Sstevel@tonic-gate * is "dead". 17997c478bd9Sstevel@tonic-gate * 18007c478bd9Sstevel@tonic-gate * A debugging flag, zone_wait_for_cred, can be set to a non-zero value 18017c478bd9Sstevel@tonic-gate * to force halt/reboot to block waiting for the zone_cred_ref to drop 18027c478bd9Sstevel@tonic-gate * to 0. This can be useful to flush out other sources of cached creds 18037c478bd9Sstevel@tonic-gate * that may be less innocuous than the driver case. 18047c478bd9Sstevel@tonic-gate */ 18057c478bd9Sstevel@tonic-gate 18067c478bd9Sstevel@tonic-gate int zone_wait_for_cred = 0; 18077c478bd9Sstevel@tonic-gate 18087c478bd9Sstevel@tonic-gate static void 18097c478bd9Sstevel@tonic-gate zone_hold_locked(zone_t *z) 18107c478bd9Sstevel@tonic-gate { 18117c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&z->zone_lock)); 18127c478bd9Sstevel@tonic-gate z->zone_ref++; 18137c478bd9Sstevel@tonic-gate ASSERT(z->zone_ref != 0); 18147c478bd9Sstevel@tonic-gate } 18157c478bd9Sstevel@tonic-gate 18167c478bd9Sstevel@tonic-gate void 18177c478bd9Sstevel@tonic-gate zone_hold(zone_t *z) 18187c478bd9Sstevel@tonic-gate { 18197c478bd9Sstevel@tonic-gate mutex_enter(&z->zone_lock); 18207c478bd9Sstevel@tonic-gate zone_hold_locked(z); 18217c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 18227c478bd9Sstevel@tonic-gate } 18237c478bd9Sstevel@tonic-gate 18247c478bd9Sstevel@tonic-gate /* 18257c478bd9Sstevel@tonic-gate * If the non-cred ref count drops to 1 and either the cred ref count 18267c478bd9Sstevel@tonic-gate * is 0 or we aren't waiting for cred references, the zone is ready to 18277c478bd9Sstevel@tonic-gate * be destroyed. 18287c478bd9Sstevel@tonic-gate */ 18297c478bd9Sstevel@tonic-gate #define ZONE_IS_UNREF(zone) ((zone)->zone_ref == 1 && \ 18307c478bd9Sstevel@tonic-gate (!zone_wait_for_cred || (zone)->zone_cred_ref == 0)) 18317c478bd9Sstevel@tonic-gate 18327c478bd9Sstevel@tonic-gate void 18337c478bd9Sstevel@tonic-gate zone_rele(zone_t *z) 18347c478bd9Sstevel@tonic-gate { 18357c478bd9Sstevel@tonic-gate boolean_t wakeup; 18367c478bd9Sstevel@tonic-gate 18377c478bd9Sstevel@tonic-gate mutex_enter(&z->zone_lock); 18387c478bd9Sstevel@tonic-gate ASSERT(z->zone_ref != 0); 18397c478bd9Sstevel@tonic-gate z->zone_ref--; 18407c478bd9Sstevel@tonic-gate if (z->zone_ref == 0 && z->zone_cred_ref == 0) { 18417c478bd9Sstevel@tonic-gate /* no more refs, free the structure */ 18427c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 18437c478bd9Sstevel@tonic-gate zone_free(z); 18447c478bd9Sstevel@tonic-gate return; 18457c478bd9Sstevel@tonic-gate } 18467c478bd9Sstevel@tonic-gate /* signal zone_destroy so the zone can finish halting */ 18477c478bd9Sstevel@tonic-gate wakeup = (ZONE_IS_UNREF(z) && zone_status_get(z) >= ZONE_IS_DEAD); 18487c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 18497c478bd9Sstevel@tonic-gate 18507c478bd9Sstevel@tonic-gate if (wakeup) { 18517c478bd9Sstevel@tonic-gate /* 18527c478bd9Sstevel@tonic-gate * Grabbing zonehash_lock here effectively synchronizes with 18537c478bd9Sstevel@tonic-gate * zone_destroy() to avoid missed signals. 18547c478bd9Sstevel@tonic-gate */ 18557c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 18567c478bd9Sstevel@tonic-gate cv_broadcast(&zone_destroy_cv); 18577c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 18587c478bd9Sstevel@tonic-gate } 18597c478bd9Sstevel@tonic-gate } 18607c478bd9Sstevel@tonic-gate 18617c478bd9Sstevel@tonic-gate void 18627c478bd9Sstevel@tonic-gate zone_cred_hold(zone_t *z) 18637c478bd9Sstevel@tonic-gate { 18647c478bd9Sstevel@tonic-gate mutex_enter(&z->zone_lock); 18657c478bd9Sstevel@tonic-gate z->zone_cred_ref++; 18667c478bd9Sstevel@tonic-gate ASSERT(z->zone_cred_ref != 0); 18677c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 18687c478bd9Sstevel@tonic-gate } 18697c478bd9Sstevel@tonic-gate 18707c478bd9Sstevel@tonic-gate void 18717c478bd9Sstevel@tonic-gate zone_cred_rele(zone_t *z) 18727c478bd9Sstevel@tonic-gate { 18737c478bd9Sstevel@tonic-gate boolean_t wakeup; 18747c478bd9Sstevel@tonic-gate 18757c478bd9Sstevel@tonic-gate mutex_enter(&z->zone_lock); 18767c478bd9Sstevel@tonic-gate ASSERT(z->zone_cred_ref != 0); 18777c478bd9Sstevel@tonic-gate z->zone_cred_ref--; 18787c478bd9Sstevel@tonic-gate if (z->zone_ref == 0 && z->zone_cred_ref == 0) { 18797c478bd9Sstevel@tonic-gate /* no more refs, free the structure */ 18807c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 18817c478bd9Sstevel@tonic-gate zone_free(z); 18827c478bd9Sstevel@tonic-gate return; 18837c478bd9Sstevel@tonic-gate } 18847c478bd9Sstevel@tonic-gate /* 18857c478bd9Sstevel@tonic-gate * If zone_destroy is waiting for the cred references to drain 18867c478bd9Sstevel@tonic-gate * out, and they have, signal it. 18877c478bd9Sstevel@tonic-gate */ 18887c478bd9Sstevel@tonic-gate wakeup = (zone_wait_for_cred && ZONE_IS_UNREF(z) && 18897c478bd9Sstevel@tonic-gate zone_status_get(z) >= ZONE_IS_DEAD); 18907c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 18917c478bd9Sstevel@tonic-gate 18927c478bd9Sstevel@tonic-gate if (wakeup) { 18937c478bd9Sstevel@tonic-gate /* 18947c478bd9Sstevel@tonic-gate * Grabbing zonehash_lock here effectively synchronizes with 18957c478bd9Sstevel@tonic-gate * zone_destroy() to avoid missed signals. 18967c478bd9Sstevel@tonic-gate */ 18977c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 18987c478bd9Sstevel@tonic-gate cv_broadcast(&zone_destroy_cv); 18997c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 19007c478bd9Sstevel@tonic-gate } 19017c478bd9Sstevel@tonic-gate } 19027c478bd9Sstevel@tonic-gate 19037c478bd9Sstevel@tonic-gate void 19047c478bd9Sstevel@tonic-gate zone_task_hold(zone_t *z) 19057c478bd9Sstevel@tonic-gate { 19067c478bd9Sstevel@tonic-gate mutex_enter(&z->zone_lock); 19077c478bd9Sstevel@tonic-gate z->zone_ntasks++; 19087c478bd9Sstevel@tonic-gate ASSERT(z->zone_ntasks != 0); 19097c478bd9Sstevel@tonic-gate mutex_exit(&z->zone_lock); 19107c478bd9Sstevel@tonic-gate } 19117c478bd9Sstevel@tonic-gate 19127c478bd9Sstevel@tonic-gate void 19137c478bd9Sstevel@tonic-gate zone_task_rele(zone_t *zone) 19147c478bd9Sstevel@tonic-gate { 19157c478bd9Sstevel@tonic-gate uint_t refcnt; 19167c478bd9Sstevel@tonic-gate 19177c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 19187c478bd9Sstevel@tonic-gate ASSERT(zone->zone_ntasks != 0); 19197c478bd9Sstevel@tonic-gate refcnt = --zone->zone_ntasks; 19207c478bd9Sstevel@tonic-gate if (refcnt > 1) { /* Common case */ 19217c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 19227c478bd9Sstevel@tonic-gate return; 19237c478bd9Sstevel@tonic-gate } 19247c478bd9Sstevel@tonic-gate zone_hold_locked(zone); /* so we can use the zone_t later */ 19257c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 19267c478bd9Sstevel@tonic-gate if (refcnt == 1) { 19277c478bd9Sstevel@tonic-gate /* 19287c478bd9Sstevel@tonic-gate * See if the zone is shutting down. 19297c478bd9Sstevel@tonic-gate */ 19307c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 19317c478bd9Sstevel@tonic-gate if (zone_status_get(zone) != ZONE_IS_SHUTTING_DOWN) { 19327c478bd9Sstevel@tonic-gate goto out; 19337c478bd9Sstevel@tonic-gate } 19347c478bd9Sstevel@tonic-gate 19357c478bd9Sstevel@tonic-gate /* 19367c478bd9Sstevel@tonic-gate * Make sure the ntasks didn't change since we 19377c478bd9Sstevel@tonic-gate * dropped zone_lock. 19387c478bd9Sstevel@tonic-gate */ 19397c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 19407c478bd9Sstevel@tonic-gate if (refcnt != zone->zone_ntasks) { 19417c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 19427c478bd9Sstevel@tonic-gate goto out; 19437c478bd9Sstevel@tonic-gate } 19447c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 19457c478bd9Sstevel@tonic-gate 19467c478bd9Sstevel@tonic-gate /* 19477c478bd9Sstevel@tonic-gate * No more user processes in the zone. The zone is empty. 19487c478bd9Sstevel@tonic-gate */ 19497c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_EMPTY); 19507c478bd9Sstevel@tonic-gate goto out; 19517c478bd9Sstevel@tonic-gate } 19527c478bd9Sstevel@tonic-gate 19537c478bd9Sstevel@tonic-gate ASSERT(refcnt == 0); 19547c478bd9Sstevel@tonic-gate /* 19557c478bd9Sstevel@tonic-gate * zsched has exited; the zone is dead. 19567c478bd9Sstevel@tonic-gate */ 19577c478bd9Sstevel@tonic-gate zone->zone_zsched = NULL; /* paranoia */ 19587c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 19597c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_DEAD); 19607c478bd9Sstevel@tonic-gate out: 19617c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 19627c478bd9Sstevel@tonic-gate zone_rele(zone); 19637c478bd9Sstevel@tonic-gate } 19647c478bd9Sstevel@tonic-gate 19657c478bd9Sstevel@tonic-gate zoneid_t 19667c478bd9Sstevel@tonic-gate getzoneid(void) 19677c478bd9Sstevel@tonic-gate { 19687c478bd9Sstevel@tonic-gate return (curproc->p_zone->zone_id); 19697c478bd9Sstevel@tonic-gate } 19707c478bd9Sstevel@tonic-gate 19717c478bd9Sstevel@tonic-gate /* 19727c478bd9Sstevel@tonic-gate * Internal versions of zone_find_by_*(). These don't zone_hold() or 19737c478bd9Sstevel@tonic-gate * check the validity of a zone's state. 19747c478bd9Sstevel@tonic-gate */ 19757c478bd9Sstevel@tonic-gate static zone_t * 19767c478bd9Sstevel@tonic-gate zone_find_all_by_id(zoneid_t zoneid) 19777c478bd9Sstevel@tonic-gate { 19787c478bd9Sstevel@tonic-gate mod_hash_val_t hv; 19797c478bd9Sstevel@tonic-gate zone_t *zone = NULL; 19807c478bd9Sstevel@tonic-gate 19817c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zonehash_lock)); 19827c478bd9Sstevel@tonic-gate 19837c478bd9Sstevel@tonic-gate if (mod_hash_find(zonehashbyid, 19847c478bd9Sstevel@tonic-gate (mod_hash_key_t)(uintptr_t)zoneid, &hv) == 0) 19857c478bd9Sstevel@tonic-gate zone = (zone_t *)hv; 19867c478bd9Sstevel@tonic-gate return (zone); 19877c478bd9Sstevel@tonic-gate } 19887c478bd9Sstevel@tonic-gate 198945916cd2Sjpk static zone_t * 199045916cd2Sjpk zone_find_all_by_label(const ts_label_t *label) 199145916cd2Sjpk { 199245916cd2Sjpk mod_hash_val_t hv; 199345916cd2Sjpk zone_t *zone = NULL; 199445916cd2Sjpk 199545916cd2Sjpk ASSERT(MUTEX_HELD(&zonehash_lock)); 199645916cd2Sjpk 199745916cd2Sjpk /* 199845916cd2Sjpk * zonehashbylabel is not maintained for unlabeled systems 199945916cd2Sjpk */ 200045916cd2Sjpk if (!is_system_labeled()) 200145916cd2Sjpk return (NULL); 200245916cd2Sjpk if (mod_hash_find(zonehashbylabel, (mod_hash_key_t)label, &hv) == 0) 200345916cd2Sjpk zone = (zone_t *)hv; 200445916cd2Sjpk return (zone); 200545916cd2Sjpk } 200645916cd2Sjpk 20077c478bd9Sstevel@tonic-gate static zone_t * 20087c478bd9Sstevel@tonic-gate zone_find_all_by_name(char *name) 20097c478bd9Sstevel@tonic-gate { 20107c478bd9Sstevel@tonic-gate mod_hash_val_t hv; 20117c478bd9Sstevel@tonic-gate zone_t *zone = NULL; 20127c478bd9Sstevel@tonic-gate 20137c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zonehash_lock)); 20147c478bd9Sstevel@tonic-gate 20157c478bd9Sstevel@tonic-gate if (mod_hash_find(zonehashbyname, (mod_hash_key_t)name, &hv) == 0) 20167c478bd9Sstevel@tonic-gate zone = (zone_t *)hv; 20177c478bd9Sstevel@tonic-gate return (zone); 20187c478bd9Sstevel@tonic-gate } 20197c478bd9Sstevel@tonic-gate 20207c478bd9Sstevel@tonic-gate /* 20217c478bd9Sstevel@tonic-gate * Public interface for looking up a zone by zoneid. Only returns the zone if 20227c478bd9Sstevel@tonic-gate * it is fully initialized, and has not yet begun the zone_destroy() sequence. 20237c478bd9Sstevel@tonic-gate * Caller must call zone_rele() once it is done with the zone. 20247c478bd9Sstevel@tonic-gate * 20257c478bd9Sstevel@tonic-gate * The zone may begin the zone_destroy() sequence immediately after this 20267c478bd9Sstevel@tonic-gate * function returns, but may be safely used until zone_rele() is called. 20277c478bd9Sstevel@tonic-gate */ 20287c478bd9Sstevel@tonic-gate zone_t * 20297c478bd9Sstevel@tonic-gate zone_find_by_id(zoneid_t zoneid) 20307c478bd9Sstevel@tonic-gate { 20317c478bd9Sstevel@tonic-gate zone_t *zone; 20327c478bd9Sstevel@tonic-gate zone_status_t status; 20337c478bd9Sstevel@tonic-gate 20347c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 20357c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_id(zoneid)) == NULL) { 20367c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 20377c478bd9Sstevel@tonic-gate return (NULL); 20387c478bd9Sstevel@tonic-gate } 20397c478bd9Sstevel@tonic-gate status = zone_status_get(zone); 20407c478bd9Sstevel@tonic-gate if (status < ZONE_IS_READY || status > ZONE_IS_DOWN) { 20417c478bd9Sstevel@tonic-gate /* 20427c478bd9Sstevel@tonic-gate * For all practical purposes the zone doesn't exist. 20437c478bd9Sstevel@tonic-gate */ 20447c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 20457c478bd9Sstevel@tonic-gate return (NULL); 20467c478bd9Sstevel@tonic-gate } 20477c478bd9Sstevel@tonic-gate zone_hold(zone); 20487c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 20497c478bd9Sstevel@tonic-gate return (zone); 20507c478bd9Sstevel@tonic-gate } 20517c478bd9Sstevel@tonic-gate 205245916cd2Sjpk /* 205345916cd2Sjpk * Similar to zone_find_by_id, but using zone label as the key. 205445916cd2Sjpk */ 205545916cd2Sjpk zone_t * 205645916cd2Sjpk zone_find_by_label(const ts_label_t *label) 205745916cd2Sjpk { 205845916cd2Sjpk zone_t *zone; 205942bc57c4Srica zone_status_t status; 206045916cd2Sjpk 206145916cd2Sjpk mutex_enter(&zonehash_lock); 206245916cd2Sjpk if ((zone = zone_find_all_by_label(label)) == NULL) { 206345916cd2Sjpk mutex_exit(&zonehash_lock); 206445916cd2Sjpk return (NULL); 206545916cd2Sjpk } 206642bc57c4Srica 206742bc57c4Srica status = zone_status_get(zone); 206842bc57c4Srica if (status > ZONE_IS_DOWN) { 206945916cd2Sjpk /* 207045916cd2Sjpk * For all practical purposes the zone doesn't exist. 207145916cd2Sjpk */ 207242bc57c4Srica mutex_exit(&zonehash_lock); 207342bc57c4Srica return (NULL); 207445916cd2Sjpk } 207542bc57c4Srica zone_hold(zone); 207645916cd2Sjpk mutex_exit(&zonehash_lock); 207745916cd2Sjpk return (zone); 207845916cd2Sjpk } 207945916cd2Sjpk 20807c478bd9Sstevel@tonic-gate /* 20817c478bd9Sstevel@tonic-gate * Similar to zone_find_by_id, but using zone name as the key. 20827c478bd9Sstevel@tonic-gate */ 20837c478bd9Sstevel@tonic-gate zone_t * 20847c478bd9Sstevel@tonic-gate zone_find_by_name(char *name) 20857c478bd9Sstevel@tonic-gate { 20867c478bd9Sstevel@tonic-gate zone_t *zone; 20877c478bd9Sstevel@tonic-gate zone_status_t status; 20887c478bd9Sstevel@tonic-gate 20897c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 20907c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_name(name)) == NULL) { 20917c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 20927c478bd9Sstevel@tonic-gate return (NULL); 20937c478bd9Sstevel@tonic-gate } 20947c478bd9Sstevel@tonic-gate status = zone_status_get(zone); 20957c478bd9Sstevel@tonic-gate if (status < ZONE_IS_READY || status > ZONE_IS_DOWN) { 20967c478bd9Sstevel@tonic-gate /* 20977c478bd9Sstevel@tonic-gate * For all practical purposes the zone doesn't exist. 20987c478bd9Sstevel@tonic-gate */ 20997c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 21007c478bd9Sstevel@tonic-gate return (NULL); 21017c478bd9Sstevel@tonic-gate } 21027c478bd9Sstevel@tonic-gate zone_hold(zone); 21037c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 21047c478bd9Sstevel@tonic-gate return (zone); 21057c478bd9Sstevel@tonic-gate } 21067c478bd9Sstevel@tonic-gate 21077c478bd9Sstevel@tonic-gate /* 21087c478bd9Sstevel@tonic-gate * Similar to zone_find_by_id(), using the path as a key. For instance, 21097c478bd9Sstevel@tonic-gate * if there is a zone "foo" rooted at /foo/root, and the path argument 21107c478bd9Sstevel@tonic-gate * is "/foo/root/proc", it will return the held zone_t corresponding to 21117c478bd9Sstevel@tonic-gate * zone "foo". 21127c478bd9Sstevel@tonic-gate * 21137c478bd9Sstevel@tonic-gate * zone_find_by_path() always returns a non-NULL value, since at the 21147c478bd9Sstevel@tonic-gate * very least every path will be contained in the global zone. 21157c478bd9Sstevel@tonic-gate * 21167c478bd9Sstevel@tonic-gate * As with the other zone_find_by_*() functions, the caller is 21177c478bd9Sstevel@tonic-gate * responsible for zone_rele()ing the return value of this function. 21187c478bd9Sstevel@tonic-gate */ 21197c478bd9Sstevel@tonic-gate zone_t * 21207c478bd9Sstevel@tonic-gate zone_find_by_path(const char *path) 21217c478bd9Sstevel@tonic-gate { 21227c478bd9Sstevel@tonic-gate zone_t *zone; 21237c478bd9Sstevel@tonic-gate zone_t *zret = NULL; 21247c478bd9Sstevel@tonic-gate zone_status_t status; 21257c478bd9Sstevel@tonic-gate 21267c478bd9Sstevel@tonic-gate if (path == NULL) { 21277c478bd9Sstevel@tonic-gate /* 21287c478bd9Sstevel@tonic-gate * Call from rootconf(). 21297c478bd9Sstevel@tonic-gate */ 21307c478bd9Sstevel@tonic-gate zone_hold(global_zone); 21317c478bd9Sstevel@tonic-gate return (global_zone); 21327c478bd9Sstevel@tonic-gate } 21337c478bd9Sstevel@tonic-gate ASSERT(*path == '/'); 21347c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 21357c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 21367c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) { 21377c478bd9Sstevel@tonic-gate if (ZONE_PATH_VISIBLE(path, zone)) 21387c478bd9Sstevel@tonic-gate zret = zone; 21397c478bd9Sstevel@tonic-gate } 21407c478bd9Sstevel@tonic-gate ASSERT(zret != NULL); 21417c478bd9Sstevel@tonic-gate status = zone_status_get(zret); 21427c478bd9Sstevel@tonic-gate if (status < ZONE_IS_READY || status > ZONE_IS_DOWN) { 21437c478bd9Sstevel@tonic-gate /* 21447c478bd9Sstevel@tonic-gate * Zone practically doesn't exist. 21457c478bd9Sstevel@tonic-gate */ 21467c478bd9Sstevel@tonic-gate zret = global_zone; 21477c478bd9Sstevel@tonic-gate } 21487c478bd9Sstevel@tonic-gate zone_hold(zret); 21497c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 21507c478bd9Sstevel@tonic-gate return (zret); 21517c478bd9Sstevel@tonic-gate } 21527c478bd9Sstevel@tonic-gate 21537c478bd9Sstevel@tonic-gate /* 21547c478bd9Sstevel@tonic-gate * Get the number of cpus visible to this zone. The system-wide global 21557c478bd9Sstevel@tonic-gate * 'ncpus' is returned if pools are disabled, the caller is in the 21567c478bd9Sstevel@tonic-gate * global zone, or a NULL zone argument is passed in. 21577c478bd9Sstevel@tonic-gate */ 21587c478bd9Sstevel@tonic-gate int 21597c478bd9Sstevel@tonic-gate zone_ncpus_get(zone_t *zone) 21607c478bd9Sstevel@tonic-gate { 21617c478bd9Sstevel@tonic-gate int myncpus = zone == NULL ? 0 : zone->zone_ncpus; 21627c478bd9Sstevel@tonic-gate 21637c478bd9Sstevel@tonic-gate return (myncpus != 0 ? myncpus : ncpus); 21647c478bd9Sstevel@tonic-gate } 21657c478bd9Sstevel@tonic-gate 21667c478bd9Sstevel@tonic-gate /* 21677c478bd9Sstevel@tonic-gate * Get the number of online cpus visible to this zone. The system-wide 21687c478bd9Sstevel@tonic-gate * global 'ncpus_online' is returned if pools are disabled, the caller 21697c478bd9Sstevel@tonic-gate * is in the global zone, or a NULL zone argument is passed in. 21707c478bd9Sstevel@tonic-gate */ 21717c478bd9Sstevel@tonic-gate int 21727c478bd9Sstevel@tonic-gate zone_ncpus_online_get(zone_t *zone) 21737c478bd9Sstevel@tonic-gate { 21747c478bd9Sstevel@tonic-gate int myncpus_online = zone == NULL ? 0 : zone->zone_ncpus_online; 21757c478bd9Sstevel@tonic-gate 21767c478bd9Sstevel@tonic-gate return (myncpus_online != 0 ? myncpus_online : ncpus_online); 21777c478bd9Sstevel@tonic-gate } 21787c478bd9Sstevel@tonic-gate 21797c478bd9Sstevel@tonic-gate /* 21807c478bd9Sstevel@tonic-gate * Return the pool to which the zone is currently bound. 21817c478bd9Sstevel@tonic-gate */ 21827c478bd9Sstevel@tonic-gate pool_t * 21837c478bd9Sstevel@tonic-gate zone_pool_get(zone_t *zone) 21847c478bd9Sstevel@tonic-gate { 21857c478bd9Sstevel@tonic-gate ASSERT(pool_lock_held()); 21867c478bd9Sstevel@tonic-gate 21877c478bd9Sstevel@tonic-gate return (zone->zone_pool); 21887c478bd9Sstevel@tonic-gate } 21897c478bd9Sstevel@tonic-gate 21907c478bd9Sstevel@tonic-gate /* 21917c478bd9Sstevel@tonic-gate * Set the zone's pool pointer and update the zone's visibility to match 21927c478bd9Sstevel@tonic-gate * the resources in the new pool. 21937c478bd9Sstevel@tonic-gate */ 21947c478bd9Sstevel@tonic-gate void 21957c478bd9Sstevel@tonic-gate zone_pool_set(zone_t *zone, pool_t *pool) 21967c478bd9Sstevel@tonic-gate { 21977c478bd9Sstevel@tonic-gate ASSERT(pool_lock_held()); 21987c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&cpu_lock)); 21997c478bd9Sstevel@tonic-gate 22007c478bd9Sstevel@tonic-gate zone->zone_pool = pool; 22017c478bd9Sstevel@tonic-gate zone_pset_set(zone, pool->pool_pset->pset_id); 22027c478bd9Sstevel@tonic-gate } 22037c478bd9Sstevel@tonic-gate 22047c478bd9Sstevel@tonic-gate /* 22057c478bd9Sstevel@tonic-gate * Return the cached value of the id of the processor set to which the 22067c478bd9Sstevel@tonic-gate * zone is currently bound. The value will be ZONE_PS_INVAL if the pools 22077c478bd9Sstevel@tonic-gate * facility is disabled. 22087c478bd9Sstevel@tonic-gate */ 22097c478bd9Sstevel@tonic-gate psetid_t 22107c478bd9Sstevel@tonic-gate zone_pset_get(zone_t *zone) 22117c478bd9Sstevel@tonic-gate { 22127c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&cpu_lock)); 22137c478bd9Sstevel@tonic-gate 22147c478bd9Sstevel@tonic-gate return (zone->zone_psetid); 22157c478bd9Sstevel@tonic-gate } 22167c478bd9Sstevel@tonic-gate 22177c478bd9Sstevel@tonic-gate /* 22187c478bd9Sstevel@tonic-gate * Set the cached value of the id of the processor set to which the zone 22197c478bd9Sstevel@tonic-gate * is currently bound. Also update the zone's visibility to match the 22207c478bd9Sstevel@tonic-gate * resources in the new processor set. 22217c478bd9Sstevel@tonic-gate */ 22227c478bd9Sstevel@tonic-gate void 22237c478bd9Sstevel@tonic-gate zone_pset_set(zone_t *zone, psetid_t newpsetid) 22247c478bd9Sstevel@tonic-gate { 22257c478bd9Sstevel@tonic-gate psetid_t oldpsetid; 22267c478bd9Sstevel@tonic-gate 22277c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&cpu_lock)); 22287c478bd9Sstevel@tonic-gate oldpsetid = zone_pset_get(zone); 22297c478bd9Sstevel@tonic-gate 22307c478bd9Sstevel@tonic-gate if (oldpsetid == newpsetid) 22317c478bd9Sstevel@tonic-gate return; 22327c478bd9Sstevel@tonic-gate /* 22337c478bd9Sstevel@tonic-gate * Global zone sees all. 22347c478bd9Sstevel@tonic-gate */ 22357c478bd9Sstevel@tonic-gate if (zone != global_zone) { 22367c478bd9Sstevel@tonic-gate zone->zone_psetid = newpsetid; 22377c478bd9Sstevel@tonic-gate if (newpsetid != ZONE_PS_INVAL) 22387c478bd9Sstevel@tonic-gate pool_pset_visibility_add(newpsetid, zone); 22397c478bd9Sstevel@tonic-gate if (oldpsetid != ZONE_PS_INVAL) 22407c478bd9Sstevel@tonic-gate pool_pset_visibility_remove(oldpsetid, zone); 22417c478bd9Sstevel@tonic-gate } 22427c478bd9Sstevel@tonic-gate /* 22437c478bd9Sstevel@tonic-gate * Disabling pools, so we should start using the global values 22447c478bd9Sstevel@tonic-gate * for ncpus and ncpus_online. 22457c478bd9Sstevel@tonic-gate */ 22467c478bd9Sstevel@tonic-gate if (newpsetid == ZONE_PS_INVAL) { 22477c478bd9Sstevel@tonic-gate zone->zone_ncpus = 0; 22487c478bd9Sstevel@tonic-gate zone->zone_ncpus_online = 0; 22497c478bd9Sstevel@tonic-gate } 22507c478bd9Sstevel@tonic-gate } 22517c478bd9Sstevel@tonic-gate 22527c478bd9Sstevel@tonic-gate /* 22537c478bd9Sstevel@tonic-gate * Walk the list of active zones and issue the provided callback for 22547c478bd9Sstevel@tonic-gate * each of them. 22557c478bd9Sstevel@tonic-gate * 22567c478bd9Sstevel@tonic-gate * Caller must not be holding any locks that may be acquired under 22577c478bd9Sstevel@tonic-gate * zonehash_lock. See comment at the beginning of the file for a list of 22587c478bd9Sstevel@tonic-gate * common locks and their interactions with zones. 22597c478bd9Sstevel@tonic-gate */ 22607c478bd9Sstevel@tonic-gate int 22617c478bd9Sstevel@tonic-gate zone_walk(int (*cb)(zone_t *, void *), void *data) 22627c478bd9Sstevel@tonic-gate { 22637c478bd9Sstevel@tonic-gate zone_t *zone; 22647c478bd9Sstevel@tonic-gate int ret = 0; 22657c478bd9Sstevel@tonic-gate zone_status_t status; 22667c478bd9Sstevel@tonic-gate 22677c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 22687c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 22697c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) { 22707c478bd9Sstevel@tonic-gate /* 22717c478bd9Sstevel@tonic-gate * Skip zones that shouldn't be externally visible. 22727c478bd9Sstevel@tonic-gate */ 22737c478bd9Sstevel@tonic-gate status = zone_status_get(zone); 22747c478bd9Sstevel@tonic-gate if (status < ZONE_IS_READY || status > ZONE_IS_DOWN) 22757c478bd9Sstevel@tonic-gate continue; 22767c478bd9Sstevel@tonic-gate /* 22777c478bd9Sstevel@tonic-gate * Bail immediately if any callback invocation returns a 22787c478bd9Sstevel@tonic-gate * non-zero value. 22797c478bd9Sstevel@tonic-gate */ 22807c478bd9Sstevel@tonic-gate ret = (*cb)(zone, data); 22817c478bd9Sstevel@tonic-gate if (ret != 0) 22827c478bd9Sstevel@tonic-gate break; 22837c478bd9Sstevel@tonic-gate } 22847c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 22857c478bd9Sstevel@tonic-gate return (ret); 22867c478bd9Sstevel@tonic-gate } 22877c478bd9Sstevel@tonic-gate 22887c478bd9Sstevel@tonic-gate static int 22897c478bd9Sstevel@tonic-gate zone_set_root(zone_t *zone, const char *upath) 22907c478bd9Sstevel@tonic-gate { 22917c478bd9Sstevel@tonic-gate vnode_t *vp; 22927c478bd9Sstevel@tonic-gate int trycount; 22937c478bd9Sstevel@tonic-gate int error = 0; 22947c478bd9Sstevel@tonic-gate char *path; 22957c478bd9Sstevel@tonic-gate struct pathname upn, pn; 22967c478bd9Sstevel@tonic-gate size_t pathlen; 22977c478bd9Sstevel@tonic-gate 22987c478bd9Sstevel@tonic-gate if ((error = pn_get((char *)upath, UIO_USERSPACE, &upn)) != 0) 22997c478bd9Sstevel@tonic-gate return (error); 23007c478bd9Sstevel@tonic-gate 23017c478bd9Sstevel@tonic-gate pn_alloc(&pn); 23027c478bd9Sstevel@tonic-gate 23037c478bd9Sstevel@tonic-gate /* prevent infinite loop */ 23047c478bd9Sstevel@tonic-gate trycount = 10; 23057c478bd9Sstevel@tonic-gate for (;;) { 23067c478bd9Sstevel@tonic-gate if (--trycount <= 0) { 23077c478bd9Sstevel@tonic-gate error = ESTALE; 23087c478bd9Sstevel@tonic-gate goto out; 23097c478bd9Sstevel@tonic-gate } 23107c478bd9Sstevel@tonic-gate 23117c478bd9Sstevel@tonic-gate if ((error = lookuppn(&upn, &pn, FOLLOW, NULLVPP, &vp)) == 0) { 23127c478bd9Sstevel@tonic-gate /* 23137c478bd9Sstevel@tonic-gate * VOP_ACCESS() may cover 'vp' with a new 23147c478bd9Sstevel@tonic-gate * filesystem, if 'vp' is an autoFS vnode. 23157c478bd9Sstevel@tonic-gate * Get the new 'vp' if so. 23167c478bd9Sstevel@tonic-gate */ 23177c478bd9Sstevel@tonic-gate if ((error = VOP_ACCESS(vp, VEXEC, 0, CRED())) == 0 && 23187c478bd9Sstevel@tonic-gate (vp->v_vfsmountedhere == NULL || 23197c478bd9Sstevel@tonic-gate (error = traverse(&vp)) == 0)) { 23207c478bd9Sstevel@tonic-gate pathlen = pn.pn_pathlen + 2; 23217c478bd9Sstevel@tonic-gate path = kmem_alloc(pathlen, KM_SLEEP); 23227c478bd9Sstevel@tonic-gate (void) strncpy(path, pn.pn_path, 23237c478bd9Sstevel@tonic-gate pn.pn_pathlen + 1); 23247c478bd9Sstevel@tonic-gate path[pathlen - 2] = '/'; 23257c478bd9Sstevel@tonic-gate path[pathlen - 1] = '\0'; 23267c478bd9Sstevel@tonic-gate pn_free(&pn); 23277c478bd9Sstevel@tonic-gate pn_free(&upn); 23287c478bd9Sstevel@tonic-gate 23297c478bd9Sstevel@tonic-gate /* Success! */ 23307c478bd9Sstevel@tonic-gate break; 23317c478bd9Sstevel@tonic-gate } 23327c478bd9Sstevel@tonic-gate VN_RELE(vp); 23337c478bd9Sstevel@tonic-gate } 23347c478bd9Sstevel@tonic-gate if (error != ESTALE) 23357c478bd9Sstevel@tonic-gate goto out; 23367c478bd9Sstevel@tonic-gate } 23377c478bd9Sstevel@tonic-gate 23387c478bd9Sstevel@tonic-gate ASSERT(error == 0); 23397c478bd9Sstevel@tonic-gate zone->zone_rootvp = vp; /* we hold a reference to vp */ 23407c478bd9Sstevel@tonic-gate zone->zone_rootpath = path; 23417c478bd9Sstevel@tonic-gate zone->zone_rootpathlen = pathlen; 234248451833Scarlsonj if (pathlen > 5 && strcmp(path + pathlen - 5, "/lu/") == 0) 234348451833Scarlsonj zone->zone_flags |= ZF_IS_SCRATCH; 23447c478bd9Sstevel@tonic-gate return (0); 23457c478bd9Sstevel@tonic-gate 23467c478bd9Sstevel@tonic-gate out: 23477c478bd9Sstevel@tonic-gate pn_free(&pn); 23487c478bd9Sstevel@tonic-gate pn_free(&upn); 23497c478bd9Sstevel@tonic-gate return (error); 23507c478bd9Sstevel@tonic-gate } 23517c478bd9Sstevel@tonic-gate 23527c478bd9Sstevel@tonic-gate #define isalnum(c) (((c) >= '0' && (c) <= '9') || \ 23537c478bd9Sstevel@tonic-gate ((c) >= 'a' && (c) <= 'z') || \ 23547c478bd9Sstevel@tonic-gate ((c) >= 'A' && (c) <= 'Z')) 23557c478bd9Sstevel@tonic-gate 23567c478bd9Sstevel@tonic-gate static int 23577c478bd9Sstevel@tonic-gate zone_set_name(zone_t *zone, const char *uname) 23587c478bd9Sstevel@tonic-gate { 23597c478bd9Sstevel@tonic-gate char *kname = kmem_zalloc(ZONENAME_MAX, KM_SLEEP); 23607c478bd9Sstevel@tonic-gate size_t len; 23617c478bd9Sstevel@tonic-gate int i, err; 23627c478bd9Sstevel@tonic-gate 23637c478bd9Sstevel@tonic-gate if ((err = copyinstr(uname, kname, ZONENAME_MAX, &len)) != 0) { 23647c478bd9Sstevel@tonic-gate kmem_free(kname, ZONENAME_MAX); 23657c478bd9Sstevel@tonic-gate return (err); /* EFAULT or ENAMETOOLONG */ 23667c478bd9Sstevel@tonic-gate } 23677c478bd9Sstevel@tonic-gate 23687c478bd9Sstevel@tonic-gate /* must be less than ZONENAME_MAX */ 23697c478bd9Sstevel@tonic-gate if (len == ZONENAME_MAX && kname[ZONENAME_MAX - 1] != '\0') { 23707c478bd9Sstevel@tonic-gate kmem_free(kname, ZONENAME_MAX); 23717c478bd9Sstevel@tonic-gate return (EINVAL); 23727c478bd9Sstevel@tonic-gate } 23737c478bd9Sstevel@tonic-gate 23747c478bd9Sstevel@tonic-gate /* 23757c478bd9Sstevel@tonic-gate * Name must start with an alphanumeric and must contain only 23767c478bd9Sstevel@tonic-gate * alphanumerics, '-', '_' and '.'. 23777c478bd9Sstevel@tonic-gate */ 23787c478bd9Sstevel@tonic-gate if (!isalnum(kname[0])) { 23797c478bd9Sstevel@tonic-gate kmem_free(kname, ZONENAME_MAX); 23807c478bd9Sstevel@tonic-gate return (EINVAL); 23817c478bd9Sstevel@tonic-gate } 23827c478bd9Sstevel@tonic-gate for (i = 1; i < len - 1; i++) { 23837c478bd9Sstevel@tonic-gate if (!isalnum(kname[i]) && kname[i] != '-' && kname[i] != '_' && 23847c478bd9Sstevel@tonic-gate kname[i] != '.') { 23857c478bd9Sstevel@tonic-gate kmem_free(kname, ZONENAME_MAX); 23867c478bd9Sstevel@tonic-gate return (EINVAL); 23877c478bd9Sstevel@tonic-gate } 23887c478bd9Sstevel@tonic-gate } 23897c478bd9Sstevel@tonic-gate 23907c478bd9Sstevel@tonic-gate zone->zone_name = kname; 23917c478bd9Sstevel@tonic-gate return (0); 23927c478bd9Sstevel@tonic-gate } 23937c478bd9Sstevel@tonic-gate 23947c478bd9Sstevel@tonic-gate /* 23957c478bd9Sstevel@tonic-gate * Similar to thread_create(), but makes sure the thread is in the appropriate 23967c478bd9Sstevel@tonic-gate * zone's zsched process (curproc->p_zone->zone_zsched) before returning. 23977c478bd9Sstevel@tonic-gate */ 23987c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 23997c478bd9Sstevel@tonic-gate kthread_t * 24007c478bd9Sstevel@tonic-gate zthread_create( 24017c478bd9Sstevel@tonic-gate caddr_t stk, 24027c478bd9Sstevel@tonic-gate size_t stksize, 24037c478bd9Sstevel@tonic-gate void (*proc)(), 24047c478bd9Sstevel@tonic-gate void *arg, 24057c478bd9Sstevel@tonic-gate size_t len, 24067c478bd9Sstevel@tonic-gate pri_t pri) 24077c478bd9Sstevel@tonic-gate { 24087c478bd9Sstevel@tonic-gate kthread_t *t; 24097c478bd9Sstevel@tonic-gate zone_t *zone = curproc->p_zone; 24107c478bd9Sstevel@tonic-gate proc_t *pp = zone->zone_zsched; 24117c478bd9Sstevel@tonic-gate 24127c478bd9Sstevel@tonic-gate zone_hold(zone); /* Reference to be dropped when thread exits */ 24137c478bd9Sstevel@tonic-gate 24147c478bd9Sstevel@tonic-gate /* 24157c478bd9Sstevel@tonic-gate * No-one should be trying to create threads if the zone is shutting 24167c478bd9Sstevel@tonic-gate * down and there aren't any kernel threads around. See comment 24177c478bd9Sstevel@tonic-gate * in zthread_exit(). 24187c478bd9Sstevel@tonic-gate */ 24197c478bd9Sstevel@tonic-gate ASSERT(!(zone->zone_kthreads == NULL && 24207c478bd9Sstevel@tonic-gate zone_status_get(zone) >= ZONE_IS_EMPTY)); 24217c478bd9Sstevel@tonic-gate /* 24227c478bd9Sstevel@tonic-gate * Create a thread, but don't let it run until we've finished setting 24237c478bd9Sstevel@tonic-gate * things up. 24247c478bd9Sstevel@tonic-gate */ 24257c478bd9Sstevel@tonic-gate t = thread_create(stk, stksize, proc, arg, len, pp, TS_STOPPED, pri); 24267c478bd9Sstevel@tonic-gate ASSERT(t->t_forw == NULL); 24277c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 24287c478bd9Sstevel@tonic-gate if (zone->zone_kthreads == NULL) { 24297c478bd9Sstevel@tonic-gate t->t_forw = t->t_back = t; 24307c478bd9Sstevel@tonic-gate } else { 24317c478bd9Sstevel@tonic-gate kthread_t *tx = zone->zone_kthreads; 24327c478bd9Sstevel@tonic-gate 24337c478bd9Sstevel@tonic-gate t->t_forw = tx; 24347c478bd9Sstevel@tonic-gate t->t_back = tx->t_back; 24357c478bd9Sstevel@tonic-gate tx->t_back->t_forw = t; 24367c478bd9Sstevel@tonic-gate tx->t_back = t; 24377c478bd9Sstevel@tonic-gate } 24387c478bd9Sstevel@tonic-gate zone->zone_kthreads = t; 24397c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 24407c478bd9Sstevel@tonic-gate 24417c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 24427c478bd9Sstevel@tonic-gate t->t_proc_flag |= TP_ZTHREAD; 24437c478bd9Sstevel@tonic-gate project_rele(t->t_proj); 24447c478bd9Sstevel@tonic-gate t->t_proj = project_hold(pp->p_task->tk_proj); 24457c478bd9Sstevel@tonic-gate 24467c478bd9Sstevel@tonic-gate /* 24477c478bd9Sstevel@tonic-gate * Setup complete, let it run. 24487c478bd9Sstevel@tonic-gate */ 24497c478bd9Sstevel@tonic-gate thread_lock(t); 24507c478bd9Sstevel@tonic-gate t->t_schedflag |= TS_ALLSTART; 24517c478bd9Sstevel@tonic-gate setrun_locked(t); 24527c478bd9Sstevel@tonic-gate thread_unlock(t); 24537c478bd9Sstevel@tonic-gate 24547c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 24557c478bd9Sstevel@tonic-gate 24567c478bd9Sstevel@tonic-gate return (t); 24577c478bd9Sstevel@tonic-gate } 24587c478bd9Sstevel@tonic-gate 24597c478bd9Sstevel@tonic-gate /* 24607c478bd9Sstevel@tonic-gate * Similar to thread_exit(). Must be called by threads created via 24617c478bd9Sstevel@tonic-gate * zthread_exit(). 24627c478bd9Sstevel@tonic-gate */ 24637c478bd9Sstevel@tonic-gate void 24647c478bd9Sstevel@tonic-gate zthread_exit(void) 24657c478bd9Sstevel@tonic-gate { 24667c478bd9Sstevel@tonic-gate kthread_t *t = curthread; 24677c478bd9Sstevel@tonic-gate proc_t *pp = curproc; 24687c478bd9Sstevel@tonic-gate zone_t *zone = pp->p_zone; 24697c478bd9Sstevel@tonic-gate 24707c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 24717c478bd9Sstevel@tonic-gate 24727c478bd9Sstevel@tonic-gate /* 24737c478bd9Sstevel@tonic-gate * Reparent to p0 24747c478bd9Sstevel@tonic-gate */ 2475b4b07f87Sjosephb kpreempt_disable(); 24767c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 24777c478bd9Sstevel@tonic-gate t->t_proc_flag &= ~TP_ZTHREAD; 24787c478bd9Sstevel@tonic-gate t->t_procp = &p0; 24797c478bd9Sstevel@tonic-gate hat_thread_exit(t); 24807c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 2481b4b07f87Sjosephb kpreempt_enable(); 24827c478bd9Sstevel@tonic-gate 24837c478bd9Sstevel@tonic-gate if (t->t_back == t) { 24847c478bd9Sstevel@tonic-gate ASSERT(t->t_forw == t); 24857c478bd9Sstevel@tonic-gate /* 24867c478bd9Sstevel@tonic-gate * If the zone is empty, once the thread count 24877c478bd9Sstevel@tonic-gate * goes to zero no further kernel threads can be 24887c478bd9Sstevel@tonic-gate * created. This is because if the creator is a process 24897c478bd9Sstevel@tonic-gate * in the zone, then it must have exited before the zone 24907c478bd9Sstevel@tonic-gate * state could be set to ZONE_IS_EMPTY. 24917c478bd9Sstevel@tonic-gate * Otherwise, if the creator is a kernel thread in the 24927c478bd9Sstevel@tonic-gate * zone, the thread count is non-zero. 24937c478bd9Sstevel@tonic-gate * 24947c478bd9Sstevel@tonic-gate * This really means that non-zone kernel threads should 24957c478bd9Sstevel@tonic-gate * not create zone kernel threads. 24967c478bd9Sstevel@tonic-gate */ 24977c478bd9Sstevel@tonic-gate zone->zone_kthreads = NULL; 24987c478bd9Sstevel@tonic-gate if (zone_status_get(zone) == ZONE_IS_EMPTY) { 24997c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_DOWN); 25007c478bd9Sstevel@tonic-gate } 25017c478bd9Sstevel@tonic-gate } else { 25027c478bd9Sstevel@tonic-gate t->t_forw->t_back = t->t_back; 25037c478bd9Sstevel@tonic-gate t->t_back->t_forw = t->t_forw; 25047c478bd9Sstevel@tonic-gate if (zone->zone_kthreads == t) 25057c478bd9Sstevel@tonic-gate zone->zone_kthreads = t->t_forw; 25067c478bd9Sstevel@tonic-gate } 25077c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 25087c478bd9Sstevel@tonic-gate zone_rele(zone); 25097c478bd9Sstevel@tonic-gate thread_exit(); 25107c478bd9Sstevel@tonic-gate /* NOTREACHED */ 25117c478bd9Sstevel@tonic-gate } 25127c478bd9Sstevel@tonic-gate 25137c478bd9Sstevel@tonic-gate static void 25147c478bd9Sstevel@tonic-gate zone_chdir(vnode_t *vp, vnode_t **vpp, proc_t *pp) 25157c478bd9Sstevel@tonic-gate { 25167c478bd9Sstevel@tonic-gate vnode_t *oldvp; 25177c478bd9Sstevel@tonic-gate 25187c478bd9Sstevel@tonic-gate /* we're going to hold a reference here to the directory */ 25197c478bd9Sstevel@tonic-gate VN_HOLD(vp); 25207c478bd9Sstevel@tonic-gate 25217c478bd9Sstevel@tonic-gate #ifdef C2_AUDIT 25227c478bd9Sstevel@tonic-gate if (audit_active) /* update abs cwd/root path see c2audit.c */ 25237c478bd9Sstevel@tonic-gate audit_chdirec(vp, vpp); 25247c478bd9Sstevel@tonic-gate #endif 25257c478bd9Sstevel@tonic-gate 25267c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 25277c478bd9Sstevel@tonic-gate oldvp = *vpp; 25287c478bd9Sstevel@tonic-gate *vpp = vp; 25297c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 25307c478bd9Sstevel@tonic-gate if (oldvp != NULL) 25317c478bd9Sstevel@tonic-gate VN_RELE(oldvp); 25327c478bd9Sstevel@tonic-gate } 25337c478bd9Sstevel@tonic-gate 25347c478bd9Sstevel@tonic-gate /* 25357c478bd9Sstevel@tonic-gate * Convert an rctl value represented by an nvlist_t into an rctl_val_t. 25367c478bd9Sstevel@tonic-gate */ 25377c478bd9Sstevel@tonic-gate static int 25387c478bd9Sstevel@tonic-gate nvlist2rctlval(nvlist_t *nvl, rctl_val_t *rv) 25397c478bd9Sstevel@tonic-gate { 25407c478bd9Sstevel@tonic-gate nvpair_t *nvp = NULL; 25417c478bd9Sstevel@tonic-gate boolean_t priv_set = B_FALSE; 25427c478bd9Sstevel@tonic-gate boolean_t limit_set = B_FALSE; 25437c478bd9Sstevel@tonic-gate boolean_t action_set = B_FALSE; 25447c478bd9Sstevel@tonic-gate 25457c478bd9Sstevel@tonic-gate while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 25467c478bd9Sstevel@tonic-gate const char *name; 25477c478bd9Sstevel@tonic-gate uint64_t ui64; 25487c478bd9Sstevel@tonic-gate 25497c478bd9Sstevel@tonic-gate name = nvpair_name(nvp); 25507c478bd9Sstevel@tonic-gate if (nvpair_type(nvp) != DATA_TYPE_UINT64) 25517c478bd9Sstevel@tonic-gate return (EINVAL); 25527c478bd9Sstevel@tonic-gate (void) nvpair_value_uint64(nvp, &ui64); 25537c478bd9Sstevel@tonic-gate if (strcmp(name, "privilege") == 0) { 25547c478bd9Sstevel@tonic-gate /* 25557c478bd9Sstevel@tonic-gate * Currently only privileged values are allowed, but 25567c478bd9Sstevel@tonic-gate * this may change in the future. 25577c478bd9Sstevel@tonic-gate */ 25587c478bd9Sstevel@tonic-gate if (ui64 != RCPRIV_PRIVILEGED) 25597c478bd9Sstevel@tonic-gate return (EINVAL); 25607c478bd9Sstevel@tonic-gate rv->rcv_privilege = ui64; 25617c478bd9Sstevel@tonic-gate priv_set = B_TRUE; 25627c478bd9Sstevel@tonic-gate } else if (strcmp(name, "limit") == 0) { 25637c478bd9Sstevel@tonic-gate rv->rcv_value = ui64; 25647c478bd9Sstevel@tonic-gate limit_set = B_TRUE; 25657c478bd9Sstevel@tonic-gate } else if (strcmp(name, "action") == 0) { 25667c478bd9Sstevel@tonic-gate if (ui64 != RCTL_LOCAL_NOACTION && 25677c478bd9Sstevel@tonic-gate ui64 != RCTL_LOCAL_DENY) 25687c478bd9Sstevel@tonic-gate return (EINVAL); 25697c478bd9Sstevel@tonic-gate rv->rcv_flagaction = ui64; 25707c478bd9Sstevel@tonic-gate action_set = B_TRUE; 25717c478bd9Sstevel@tonic-gate } else { 25727c478bd9Sstevel@tonic-gate return (EINVAL); 25737c478bd9Sstevel@tonic-gate } 25747c478bd9Sstevel@tonic-gate } 25757c478bd9Sstevel@tonic-gate 25767c478bd9Sstevel@tonic-gate if (!(priv_set && limit_set && action_set)) 25777c478bd9Sstevel@tonic-gate return (EINVAL); 25787c478bd9Sstevel@tonic-gate rv->rcv_action_signal = 0; 25797c478bd9Sstevel@tonic-gate rv->rcv_action_recipient = NULL; 25807c478bd9Sstevel@tonic-gate rv->rcv_action_recip_pid = -1; 25817c478bd9Sstevel@tonic-gate rv->rcv_firing_time = 0; 25827c478bd9Sstevel@tonic-gate 25837c478bd9Sstevel@tonic-gate return (0); 25847c478bd9Sstevel@tonic-gate } 25857c478bd9Sstevel@tonic-gate 25863f2f09c1Sdp /* 25873f2f09c1Sdp * Non-global zone version of start_init. 25883f2f09c1Sdp */ 25897c478bd9Sstevel@tonic-gate void 25903f2f09c1Sdp zone_start_init(void) 25917c478bd9Sstevel@tonic-gate { 25927c478bd9Sstevel@tonic-gate proc_t *p = ttoproc(curthread); 25939acbbeafSnn zone_t *z = p->p_zone; 25947c478bd9Sstevel@tonic-gate 25953f2f09c1Sdp ASSERT(!INGLOBALZONE(curproc)); 25967c478bd9Sstevel@tonic-gate 25979acbbeafSnn /* 25989acbbeafSnn * For all purposes (ZONE_ATTR_INITPID and restart_init), 25999acbbeafSnn * storing just the pid of init is sufficient. 26009acbbeafSnn */ 26019acbbeafSnn z->zone_proc_initpid = p->p_pid; 26029acbbeafSnn 26037c478bd9Sstevel@tonic-gate /* 26043f2f09c1Sdp * We maintain zone_boot_err so that we can return the cause of the 26053f2f09c1Sdp * failure back to the caller of the zone_boot syscall. 26067c478bd9Sstevel@tonic-gate */ 26073f2f09c1Sdp p->p_zone->zone_boot_err = start_init_common(); 26087c478bd9Sstevel@tonic-gate 26097c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 26109acbbeafSnn if (z->zone_boot_err != 0) { 26117c478bd9Sstevel@tonic-gate /* 26127c478bd9Sstevel@tonic-gate * Make sure we are still in the booting state-- we could have 26137c478bd9Sstevel@tonic-gate * raced and already be shutting down, or even further along. 26147c478bd9Sstevel@tonic-gate */ 26159acbbeafSnn if (zone_status_get(z) == ZONE_IS_BOOTING) 26169acbbeafSnn zone_status_set(z, ZONE_IS_SHUTTING_DOWN); 26177c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 26187c478bd9Sstevel@tonic-gate /* It's gone bad, dispose of the process */ 26199acbbeafSnn if (proc_exit(CLD_EXITED, z->zone_boot_err) != 0) { 262097eda132Sraf mutex_enter(&p->p_lock); 262197eda132Sraf ASSERT(p->p_flag & SEXITLWPS); 26227c478bd9Sstevel@tonic-gate lwp_exit(); 26237c478bd9Sstevel@tonic-gate } 26247c478bd9Sstevel@tonic-gate } else { 26259acbbeafSnn if (zone_status_get(z) == ZONE_IS_BOOTING) 26269acbbeafSnn zone_status_set(z, ZONE_IS_RUNNING); 26277c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 26287c478bd9Sstevel@tonic-gate /* cause the process to return to userland. */ 26297c478bd9Sstevel@tonic-gate lwp_rtt(); 26307c478bd9Sstevel@tonic-gate } 26317c478bd9Sstevel@tonic-gate } 26327c478bd9Sstevel@tonic-gate 26337c478bd9Sstevel@tonic-gate struct zsched_arg { 26347c478bd9Sstevel@tonic-gate zone_t *zone; 26357c478bd9Sstevel@tonic-gate nvlist_t *nvlist; 26367c478bd9Sstevel@tonic-gate }; 26377c478bd9Sstevel@tonic-gate 26387c478bd9Sstevel@tonic-gate /* 26397c478bd9Sstevel@tonic-gate * Per-zone "sched" workalike. The similarity to "sched" doesn't have 26407c478bd9Sstevel@tonic-gate * anything to do with scheduling, but rather with the fact that 26417c478bd9Sstevel@tonic-gate * per-zone kernel threads are parented to zsched, just like regular 26427c478bd9Sstevel@tonic-gate * kernel threads are parented to sched (p0). 26437c478bd9Sstevel@tonic-gate * 26447c478bd9Sstevel@tonic-gate * zsched is also responsible for launching init for the zone. 26457c478bd9Sstevel@tonic-gate */ 26467c478bd9Sstevel@tonic-gate static void 26477c478bd9Sstevel@tonic-gate zsched(void *arg) 26487c478bd9Sstevel@tonic-gate { 26497c478bd9Sstevel@tonic-gate struct zsched_arg *za = arg; 26507c478bd9Sstevel@tonic-gate proc_t *pp = curproc; 26517c478bd9Sstevel@tonic-gate proc_t *initp = proc_init; 26527c478bd9Sstevel@tonic-gate zone_t *zone = za->zone; 26537c478bd9Sstevel@tonic-gate cred_t *cr, *oldcred; 26547c478bd9Sstevel@tonic-gate rctl_set_t *set; 26557c478bd9Sstevel@tonic-gate rctl_alloc_gp_t *gp; 26567c478bd9Sstevel@tonic-gate contract_t *ct = NULL; 26577c478bd9Sstevel@tonic-gate task_t *tk, *oldtk; 26587c478bd9Sstevel@tonic-gate rctl_entity_p_t e; 26597c478bd9Sstevel@tonic-gate kproject_t *pj; 26607c478bd9Sstevel@tonic-gate 26617c478bd9Sstevel@tonic-gate nvlist_t *nvl = za->nvlist; 26627c478bd9Sstevel@tonic-gate nvpair_t *nvp = NULL; 26637c478bd9Sstevel@tonic-gate 26647c478bd9Sstevel@tonic-gate bcopy("zsched", u.u_psargs, sizeof ("zsched")); 26657c478bd9Sstevel@tonic-gate bcopy("zsched", u.u_comm, sizeof ("zsched")); 26667c478bd9Sstevel@tonic-gate u.u_argc = 0; 26677c478bd9Sstevel@tonic-gate u.u_argv = NULL; 26687c478bd9Sstevel@tonic-gate u.u_envp = NULL; 26697c478bd9Sstevel@tonic-gate closeall(P_FINFO(pp)); 26707c478bd9Sstevel@tonic-gate 26717c478bd9Sstevel@tonic-gate /* 26727c478bd9Sstevel@tonic-gate * We are this zone's "zsched" process. As the zone isn't generally 26737c478bd9Sstevel@tonic-gate * visible yet we don't need to grab any locks before initializing its 26747c478bd9Sstevel@tonic-gate * zone_proc pointer. 26757c478bd9Sstevel@tonic-gate */ 26767c478bd9Sstevel@tonic-gate zone_hold(zone); /* this hold is released by zone_destroy() */ 26777c478bd9Sstevel@tonic-gate zone->zone_zsched = pp; 26787c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 26797c478bd9Sstevel@tonic-gate pp->p_zone = zone; 26807c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 26817c478bd9Sstevel@tonic-gate 26827c478bd9Sstevel@tonic-gate /* 26837c478bd9Sstevel@tonic-gate * Disassociate process from its 'parent'; parent ourselves to init 26847c478bd9Sstevel@tonic-gate * (pid 1) and change other values as needed. 26857c478bd9Sstevel@tonic-gate */ 26867c478bd9Sstevel@tonic-gate sess_create(); 26877c478bd9Sstevel@tonic-gate 26887c478bd9Sstevel@tonic-gate mutex_enter(&pidlock); 26897c478bd9Sstevel@tonic-gate proc_detach(pp); 26907c478bd9Sstevel@tonic-gate pp->p_ppid = 1; 26917c478bd9Sstevel@tonic-gate pp->p_flag |= SZONETOP; 26927c478bd9Sstevel@tonic-gate pp->p_ancpid = 1; 26937c478bd9Sstevel@tonic-gate pp->p_parent = initp; 26947c478bd9Sstevel@tonic-gate pp->p_psibling = NULL; 26957c478bd9Sstevel@tonic-gate if (initp->p_child) 26967c478bd9Sstevel@tonic-gate initp->p_child->p_psibling = pp; 26977c478bd9Sstevel@tonic-gate pp->p_sibling = initp->p_child; 26987c478bd9Sstevel@tonic-gate initp->p_child = pp; 26997c478bd9Sstevel@tonic-gate 27007c478bd9Sstevel@tonic-gate /* Decrement what newproc() incremented. */ 27017c478bd9Sstevel@tonic-gate upcount_dec(crgetruid(CRED()), GLOBAL_ZONEID); 27027c478bd9Sstevel@tonic-gate /* 27037c478bd9Sstevel@tonic-gate * Our credentials are about to become kcred-like, so we don't care 27047c478bd9Sstevel@tonic-gate * about the caller's ruid. 27057c478bd9Sstevel@tonic-gate */ 27067c478bd9Sstevel@tonic-gate upcount_inc(crgetruid(kcred), zone->zone_id); 27077c478bd9Sstevel@tonic-gate mutex_exit(&pidlock); 27087c478bd9Sstevel@tonic-gate 27097c478bd9Sstevel@tonic-gate /* 27107c478bd9Sstevel@tonic-gate * getting out of global zone, so decrement lwp counts 27117c478bd9Sstevel@tonic-gate */ 27127c478bd9Sstevel@tonic-gate pj = pp->p_task->tk_proj; 27137c478bd9Sstevel@tonic-gate mutex_enter(&global_zone->zone_nlwps_lock); 27147c478bd9Sstevel@tonic-gate pj->kpj_nlwps -= pp->p_lwpcnt; 27157c478bd9Sstevel@tonic-gate global_zone->zone_nlwps -= pp->p_lwpcnt; 27167c478bd9Sstevel@tonic-gate mutex_exit(&global_zone->zone_nlwps_lock); 27177c478bd9Sstevel@tonic-gate 2718c6939658Ssl /* 2719c6939658Ssl * Decrement locked memory counts on old zone and project. 2720c6939658Ssl */ 2721*0209230bSgjelinek mutex_enter(&global_zone->zone_mem_lock); 2722c6939658Ssl global_zone->zone_locked_mem -= pp->p_locked_mem; 2723c6939658Ssl pj->kpj_data.kpd_locked_mem -= pp->p_locked_mem; 2724*0209230bSgjelinek mutex_exit(&global_zone->zone_mem_lock); 2725c6939658Ssl 27267c478bd9Sstevel@tonic-gate /* 27277c478bd9Sstevel@tonic-gate * Create and join a new task in project '0' of this zone. 27287c478bd9Sstevel@tonic-gate * 27297c478bd9Sstevel@tonic-gate * We don't need to call holdlwps() since we know we're the only lwp in 27307c478bd9Sstevel@tonic-gate * this process. 27317c478bd9Sstevel@tonic-gate * 27327c478bd9Sstevel@tonic-gate * task_join() returns with p_lock held. 27337c478bd9Sstevel@tonic-gate */ 27347c478bd9Sstevel@tonic-gate tk = task_create(0, zone); 27357c478bd9Sstevel@tonic-gate mutex_enter(&cpu_lock); 27367c478bd9Sstevel@tonic-gate oldtk = task_join(tk, 0); 2737c6939658Ssl 2738c6939658Ssl pj = pp->p_task->tk_proj; 2739c6939658Ssl 2740*0209230bSgjelinek mutex_enter(&zone->zone_mem_lock); 2741c6939658Ssl zone->zone_locked_mem += pp->p_locked_mem; 2742c6939658Ssl pj->kpj_data.kpd_locked_mem += pp->p_locked_mem; 2743*0209230bSgjelinek mutex_exit(&zone->zone_mem_lock); 27447c478bd9Sstevel@tonic-gate 27457c478bd9Sstevel@tonic-gate /* 27467c478bd9Sstevel@tonic-gate * add lwp counts to zsched's zone, and increment project's task count 27477c478bd9Sstevel@tonic-gate * due to the task created in the above tasksys_settaskid 27487c478bd9Sstevel@tonic-gate */ 2749c6939658Ssl 27507c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_nlwps_lock); 27517c478bd9Sstevel@tonic-gate pj->kpj_nlwps += pp->p_lwpcnt; 27527c478bd9Sstevel@tonic-gate pj->kpj_ntasks += 1; 27537c478bd9Sstevel@tonic-gate zone->zone_nlwps += pp->p_lwpcnt; 27547c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_nlwps_lock); 27557c478bd9Sstevel@tonic-gate 2756c6939658Ssl mutex_exit(&curproc->p_lock); 2757c6939658Ssl mutex_exit(&cpu_lock); 2758c6939658Ssl task_rele(oldtk); 2759c6939658Ssl 27607c478bd9Sstevel@tonic-gate /* 27617c478bd9Sstevel@tonic-gate * The process was created by a process in the global zone, hence the 27627c478bd9Sstevel@tonic-gate * credentials are wrong. We might as well have kcred-ish credentials. 27637c478bd9Sstevel@tonic-gate */ 27647c478bd9Sstevel@tonic-gate cr = zone->zone_kcred; 27657c478bd9Sstevel@tonic-gate crhold(cr); 27667c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_crlock); 27677c478bd9Sstevel@tonic-gate oldcred = pp->p_cred; 27687c478bd9Sstevel@tonic-gate pp->p_cred = cr; 27697c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_crlock); 27707c478bd9Sstevel@tonic-gate crfree(oldcred); 27717c478bd9Sstevel@tonic-gate 27727c478bd9Sstevel@tonic-gate /* 27737c478bd9Sstevel@tonic-gate * Hold credentials again (for thread) 27747c478bd9Sstevel@tonic-gate */ 27757c478bd9Sstevel@tonic-gate crhold(cr); 27767c478bd9Sstevel@tonic-gate 27777c478bd9Sstevel@tonic-gate /* 27787c478bd9Sstevel@tonic-gate * p_lwpcnt can't change since this is a kernel process. 27797c478bd9Sstevel@tonic-gate */ 27807c478bd9Sstevel@tonic-gate crset(pp, cr); 27817c478bd9Sstevel@tonic-gate 27827c478bd9Sstevel@tonic-gate /* 27837c478bd9Sstevel@tonic-gate * Chroot 27847c478bd9Sstevel@tonic-gate */ 27857c478bd9Sstevel@tonic-gate zone_chdir(zone->zone_rootvp, &PTOU(pp)->u_cdir, pp); 27867c478bd9Sstevel@tonic-gate zone_chdir(zone->zone_rootvp, &PTOU(pp)->u_rdir, pp); 27877c478bd9Sstevel@tonic-gate 27887c478bd9Sstevel@tonic-gate /* 27897c478bd9Sstevel@tonic-gate * Initialize zone's rctl set. 27907c478bd9Sstevel@tonic-gate */ 27917c478bd9Sstevel@tonic-gate set = rctl_set_create(); 27927c478bd9Sstevel@tonic-gate gp = rctl_set_init_prealloc(RCENTITY_ZONE); 27937c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 27947c478bd9Sstevel@tonic-gate e.rcep_p.zone = zone; 27957c478bd9Sstevel@tonic-gate e.rcep_t = RCENTITY_ZONE; 27967c478bd9Sstevel@tonic-gate zone->zone_rctls = rctl_set_init(RCENTITY_ZONE, pp, &e, set, gp); 27977c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 27987c478bd9Sstevel@tonic-gate rctl_prealloc_destroy(gp); 27997c478bd9Sstevel@tonic-gate 28007c478bd9Sstevel@tonic-gate /* 28017c478bd9Sstevel@tonic-gate * Apply the rctls passed in to zone_create(). This is basically a list 28027c478bd9Sstevel@tonic-gate * assignment: all of the old values are removed and the new ones 28037c478bd9Sstevel@tonic-gate * inserted. That is, if an empty list is passed in, all values are 28047c478bd9Sstevel@tonic-gate * removed. 28057c478bd9Sstevel@tonic-gate */ 28067c478bd9Sstevel@tonic-gate while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 28077c478bd9Sstevel@tonic-gate rctl_dict_entry_t *rde; 28087c478bd9Sstevel@tonic-gate rctl_hndl_t hndl; 28097c478bd9Sstevel@tonic-gate char *name; 28107c478bd9Sstevel@tonic-gate nvlist_t **nvlarray; 28117c478bd9Sstevel@tonic-gate uint_t i, nelem; 28127c478bd9Sstevel@tonic-gate int error; /* For ASSERT()s */ 28137c478bd9Sstevel@tonic-gate 28147c478bd9Sstevel@tonic-gate name = nvpair_name(nvp); 28157c478bd9Sstevel@tonic-gate hndl = rctl_hndl_lookup(name); 28167c478bd9Sstevel@tonic-gate ASSERT(hndl != -1); 28177c478bd9Sstevel@tonic-gate rde = rctl_dict_lookup_hndl(hndl); 28187c478bd9Sstevel@tonic-gate ASSERT(rde != NULL); 28197c478bd9Sstevel@tonic-gate 28207c478bd9Sstevel@tonic-gate for (; /* ever */; ) { 28217c478bd9Sstevel@tonic-gate rctl_val_t oval; 28227c478bd9Sstevel@tonic-gate 28237c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 28247c478bd9Sstevel@tonic-gate error = rctl_local_get(hndl, NULL, &oval, pp); 28257c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 28267c478bd9Sstevel@tonic-gate ASSERT(error == 0); /* Can't fail for RCTL_FIRST */ 28277c478bd9Sstevel@tonic-gate ASSERT(oval.rcv_privilege != RCPRIV_BASIC); 28287c478bd9Sstevel@tonic-gate if (oval.rcv_privilege == RCPRIV_SYSTEM) 28297c478bd9Sstevel@tonic-gate break; 28307c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 28317c478bd9Sstevel@tonic-gate error = rctl_local_delete(hndl, &oval, pp); 28327c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 28337c478bd9Sstevel@tonic-gate ASSERT(error == 0); 28347c478bd9Sstevel@tonic-gate } 28357c478bd9Sstevel@tonic-gate error = nvpair_value_nvlist_array(nvp, &nvlarray, &nelem); 28367c478bd9Sstevel@tonic-gate ASSERT(error == 0); 28377c478bd9Sstevel@tonic-gate for (i = 0; i < nelem; i++) { 28387c478bd9Sstevel@tonic-gate rctl_val_t *nvalp; 28397c478bd9Sstevel@tonic-gate 28407c478bd9Sstevel@tonic-gate nvalp = kmem_cache_alloc(rctl_val_cache, KM_SLEEP); 28417c478bd9Sstevel@tonic-gate error = nvlist2rctlval(nvlarray[i], nvalp); 28427c478bd9Sstevel@tonic-gate ASSERT(error == 0); 28437c478bd9Sstevel@tonic-gate /* 28447c478bd9Sstevel@tonic-gate * rctl_local_insert can fail if the value being 28457c478bd9Sstevel@tonic-gate * inserted is a duplicate; this is OK. 28467c478bd9Sstevel@tonic-gate */ 28477c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 28487c478bd9Sstevel@tonic-gate if (rctl_local_insert(hndl, nvalp, pp) != 0) 28497c478bd9Sstevel@tonic-gate kmem_cache_free(rctl_val_cache, nvalp); 28507c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 28517c478bd9Sstevel@tonic-gate } 28527c478bd9Sstevel@tonic-gate } 28537c478bd9Sstevel@tonic-gate /* 28547c478bd9Sstevel@tonic-gate * Tell the world that we're done setting up. 28557c478bd9Sstevel@tonic-gate * 28567c478bd9Sstevel@tonic-gate * At this point we want to set the zone status to ZONE_IS_READY 28577c478bd9Sstevel@tonic-gate * and atomically set the zone's processor set visibility. Once 28587c478bd9Sstevel@tonic-gate * we drop pool_lock() this zone will automatically get updated 28597c478bd9Sstevel@tonic-gate * to reflect any future changes to the pools configuration. 28607c478bd9Sstevel@tonic-gate */ 28617c478bd9Sstevel@tonic-gate pool_lock(); 28627c478bd9Sstevel@tonic-gate mutex_enter(&cpu_lock); 28637c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 28647c478bd9Sstevel@tonic-gate zone_uniqid(zone); 28657c478bd9Sstevel@tonic-gate zone_zsd_configure(zone); 28667c478bd9Sstevel@tonic-gate if (pool_state == POOL_ENABLED) 28677c478bd9Sstevel@tonic-gate zone_pset_set(zone, pool_default->pool_pset->pset_id); 28687c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 28697c478bd9Sstevel@tonic-gate ASSERT(zone_status_get(zone) == ZONE_IS_UNINITIALIZED); 28707c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_READY); 28717c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 28727c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 28737c478bd9Sstevel@tonic-gate mutex_exit(&cpu_lock); 28747c478bd9Sstevel@tonic-gate pool_unlock(); 28757c478bd9Sstevel@tonic-gate 28767c478bd9Sstevel@tonic-gate /* 28777c478bd9Sstevel@tonic-gate * Once we see the zone transition to the ZONE_IS_BOOTING state, 28787c478bd9Sstevel@tonic-gate * we launch init, and set the state to running. 28797c478bd9Sstevel@tonic-gate */ 28807c478bd9Sstevel@tonic-gate zone_status_wait_cpr(zone, ZONE_IS_BOOTING, "zsched"); 28817c478bd9Sstevel@tonic-gate 28827c478bd9Sstevel@tonic-gate if (zone_status_get(zone) == ZONE_IS_BOOTING) { 28837c478bd9Sstevel@tonic-gate id_t cid; 28847c478bd9Sstevel@tonic-gate 28857c478bd9Sstevel@tonic-gate /* 28867c478bd9Sstevel@tonic-gate * Ok, this is a little complicated. We need to grab the 28877c478bd9Sstevel@tonic-gate * zone's pool's scheduling class ID; note that by now, we 28887c478bd9Sstevel@tonic-gate * are already bound to a pool if we need to be (zoneadmd 28897c478bd9Sstevel@tonic-gate * will have done that to us while we're in the READY 28907c478bd9Sstevel@tonic-gate * state). *But* the scheduling class for the zone's 'init' 28917c478bd9Sstevel@tonic-gate * must be explicitly passed to newproc, which doesn't 28927c478bd9Sstevel@tonic-gate * respect pool bindings. 28937c478bd9Sstevel@tonic-gate * 28947c478bd9Sstevel@tonic-gate * We hold the pool_lock across the call to newproc() to 28957c478bd9Sstevel@tonic-gate * close the obvious race: the pool's scheduling class 28967c478bd9Sstevel@tonic-gate * could change before we manage to create the LWP with 28977c478bd9Sstevel@tonic-gate * classid 'cid'. 28987c478bd9Sstevel@tonic-gate */ 28997c478bd9Sstevel@tonic-gate pool_lock(); 2900*0209230bSgjelinek if (zone->zone_defaultcid > 0) 2901*0209230bSgjelinek cid = zone->zone_defaultcid; 2902*0209230bSgjelinek else 2903*0209230bSgjelinek cid = pool_get_class(zone->zone_pool); 29047c478bd9Sstevel@tonic-gate if (cid == -1) 29057c478bd9Sstevel@tonic-gate cid = defaultcid; 29067c478bd9Sstevel@tonic-gate 29077c478bd9Sstevel@tonic-gate /* 29087c478bd9Sstevel@tonic-gate * If this fails, zone_boot will ultimately fail. The 29097c478bd9Sstevel@tonic-gate * state of the zone will be set to SHUTTING_DOWN-- userland 29107c478bd9Sstevel@tonic-gate * will have to tear down the zone, and fail, or try again. 29117c478bd9Sstevel@tonic-gate */ 29123f2f09c1Sdp if ((zone->zone_boot_err = newproc(zone_start_init, NULL, cid, 29137c478bd9Sstevel@tonic-gate minclsyspri - 1, &ct)) != 0) { 29147c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 29157c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_SHUTTING_DOWN); 29167c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 29177c478bd9Sstevel@tonic-gate } 29187c478bd9Sstevel@tonic-gate pool_unlock(); 29197c478bd9Sstevel@tonic-gate } 29207c478bd9Sstevel@tonic-gate 29217c478bd9Sstevel@tonic-gate /* 29227c478bd9Sstevel@tonic-gate * Wait for zone_destroy() to be called. This is what we spend 29237c478bd9Sstevel@tonic-gate * most of our life doing. 29247c478bd9Sstevel@tonic-gate */ 29257c478bd9Sstevel@tonic-gate zone_status_wait_cpr(zone, ZONE_IS_DYING, "zsched"); 29267c478bd9Sstevel@tonic-gate 29277c478bd9Sstevel@tonic-gate if (ct) 29287c478bd9Sstevel@tonic-gate /* 29297c478bd9Sstevel@tonic-gate * At this point the process contract should be empty. 29307c478bd9Sstevel@tonic-gate * (Though if it isn't, it's not the end of the world.) 29317c478bd9Sstevel@tonic-gate */ 29327c478bd9Sstevel@tonic-gate VERIFY(contract_abandon(ct, curproc, B_TRUE) == 0); 29337c478bd9Sstevel@tonic-gate 29347c478bd9Sstevel@tonic-gate /* 29357c478bd9Sstevel@tonic-gate * Allow kcred to be freed when all referring processes 29367c478bd9Sstevel@tonic-gate * (including this one) go away. We can't just do this in 29377c478bd9Sstevel@tonic-gate * zone_free because we need to wait for the zone_cred_ref to 29387c478bd9Sstevel@tonic-gate * drop to 0 before calling zone_free, and the existence of 29397c478bd9Sstevel@tonic-gate * zone_kcred will prevent that. Thus, we call crfree here to 29407c478bd9Sstevel@tonic-gate * balance the crdup in zone_create. The crhold calls earlier 29417c478bd9Sstevel@tonic-gate * in zsched will be dropped when the thread and process exit. 29427c478bd9Sstevel@tonic-gate */ 29437c478bd9Sstevel@tonic-gate crfree(zone->zone_kcred); 29447c478bd9Sstevel@tonic-gate zone->zone_kcred = NULL; 29457c478bd9Sstevel@tonic-gate 29467c478bd9Sstevel@tonic-gate exit(CLD_EXITED, 0); 29477c478bd9Sstevel@tonic-gate } 29487c478bd9Sstevel@tonic-gate 29497c478bd9Sstevel@tonic-gate /* 29507c478bd9Sstevel@tonic-gate * Helper function to determine if there are any submounts of the 29517c478bd9Sstevel@tonic-gate * provided path. Used to make sure the zone doesn't "inherit" any 29527c478bd9Sstevel@tonic-gate * mounts from before it is created. 29537c478bd9Sstevel@tonic-gate */ 29547c478bd9Sstevel@tonic-gate static uint_t 29557c478bd9Sstevel@tonic-gate zone_mount_count(const char *rootpath) 29567c478bd9Sstevel@tonic-gate { 29577c478bd9Sstevel@tonic-gate vfs_t *vfsp; 29587c478bd9Sstevel@tonic-gate uint_t count = 0; 29597c478bd9Sstevel@tonic-gate size_t rootpathlen = strlen(rootpath); 29607c478bd9Sstevel@tonic-gate 29617c478bd9Sstevel@tonic-gate /* 29627c478bd9Sstevel@tonic-gate * Holding zonehash_lock prevents race conditions with 29637c478bd9Sstevel@tonic-gate * vfs_list_add()/vfs_list_remove() since we serialize with 29647c478bd9Sstevel@tonic-gate * zone_find_by_path(). 29657c478bd9Sstevel@tonic-gate */ 29667c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zonehash_lock)); 29677c478bd9Sstevel@tonic-gate /* 29687c478bd9Sstevel@tonic-gate * The rootpath must end with a '/' 29697c478bd9Sstevel@tonic-gate */ 29707c478bd9Sstevel@tonic-gate ASSERT(rootpath[rootpathlen - 1] == '/'); 29717c478bd9Sstevel@tonic-gate 29727c478bd9Sstevel@tonic-gate /* 29737c478bd9Sstevel@tonic-gate * This intentionally does not count the rootpath itself if that 29747c478bd9Sstevel@tonic-gate * happens to be a mount point. 29757c478bd9Sstevel@tonic-gate */ 29767c478bd9Sstevel@tonic-gate vfs_list_read_lock(); 29777c478bd9Sstevel@tonic-gate vfsp = rootvfs; 29787c478bd9Sstevel@tonic-gate do { 29797c478bd9Sstevel@tonic-gate if (strncmp(rootpath, refstr_value(vfsp->vfs_mntpt), 29807c478bd9Sstevel@tonic-gate rootpathlen) == 0) 29817c478bd9Sstevel@tonic-gate count++; 29827c478bd9Sstevel@tonic-gate vfsp = vfsp->vfs_next; 29837c478bd9Sstevel@tonic-gate } while (vfsp != rootvfs); 29847c478bd9Sstevel@tonic-gate vfs_list_unlock(); 29857c478bd9Sstevel@tonic-gate return (count); 29867c478bd9Sstevel@tonic-gate } 29877c478bd9Sstevel@tonic-gate 29887c478bd9Sstevel@tonic-gate /* 29897c478bd9Sstevel@tonic-gate * Helper function to make sure that a zone created on 'rootpath' 29907c478bd9Sstevel@tonic-gate * wouldn't end up containing other zones' rootpaths. 29917c478bd9Sstevel@tonic-gate */ 29927c478bd9Sstevel@tonic-gate static boolean_t 29937c478bd9Sstevel@tonic-gate zone_is_nested(const char *rootpath) 29947c478bd9Sstevel@tonic-gate { 29957c478bd9Sstevel@tonic-gate zone_t *zone; 29967c478bd9Sstevel@tonic-gate size_t rootpathlen = strlen(rootpath); 29977c478bd9Sstevel@tonic-gate size_t len; 29987c478bd9Sstevel@tonic-gate 29997c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&zonehash_lock)); 30007c478bd9Sstevel@tonic-gate 30017c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 30027c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) { 30037c478bd9Sstevel@tonic-gate if (zone == global_zone) 30047c478bd9Sstevel@tonic-gate continue; 30057c478bd9Sstevel@tonic-gate len = strlen(zone->zone_rootpath); 30067c478bd9Sstevel@tonic-gate if (strncmp(rootpath, zone->zone_rootpath, 30077c478bd9Sstevel@tonic-gate MIN(rootpathlen, len)) == 0) 30087c478bd9Sstevel@tonic-gate return (B_TRUE); 30097c478bd9Sstevel@tonic-gate } 30107c478bd9Sstevel@tonic-gate return (B_FALSE); 30117c478bd9Sstevel@tonic-gate } 30127c478bd9Sstevel@tonic-gate 30137c478bd9Sstevel@tonic-gate static int 3014821c4a97Sdp zone_set_privset(zone_t *zone, const priv_set_t *zone_privs, 3015821c4a97Sdp size_t zone_privssz) 30167c478bd9Sstevel@tonic-gate { 30177c478bd9Sstevel@tonic-gate priv_set_t *privs = kmem_alloc(sizeof (priv_set_t), KM_SLEEP); 30187c478bd9Sstevel@tonic-gate 3019821c4a97Sdp if (zone_privssz < sizeof (priv_set_t)) 3020821c4a97Sdp return (set_errno(ENOMEM)); 3021821c4a97Sdp 30227c478bd9Sstevel@tonic-gate if (copyin(zone_privs, privs, sizeof (priv_set_t))) { 30237c478bd9Sstevel@tonic-gate kmem_free(privs, sizeof (priv_set_t)); 30247c478bd9Sstevel@tonic-gate return (EFAULT); 30257c478bd9Sstevel@tonic-gate } 30267c478bd9Sstevel@tonic-gate 30277c478bd9Sstevel@tonic-gate zone->zone_privset = privs; 30287c478bd9Sstevel@tonic-gate return (0); 30297c478bd9Sstevel@tonic-gate } 30307c478bd9Sstevel@tonic-gate 30317c478bd9Sstevel@tonic-gate /* 30327c478bd9Sstevel@tonic-gate * We make creative use of nvlists to pass in rctls from userland. The list is 30337c478bd9Sstevel@tonic-gate * a list of the following structures: 30347c478bd9Sstevel@tonic-gate * 30357c478bd9Sstevel@tonic-gate * (name = rctl_name, value = nvpair_list_array) 30367c478bd9Sstevel@tonic-gate * 30377c478bd9Sstevel@tonic-gate * Where each element of the nvpair_list_array is of the form: 30387c478bd9Sstevel@tonic-gate * 30397c478bd9Sstevel@tonic-gate * [(name = "privilege", value = RCPRIV_PRIVILEGED), 30407c478bd9Sstevel@tonic-gate * (name = "limit", value = uint64_t), 30417c478bd9Sstevel@tonic-gate * (name = "action", value = (RCTL_LOCAL_NOACTION || RCTL_LOCAL_DENY))] 30427c478bd9Sstevel@tonic-gate */ 30437c478bd9Sstevel@tonic-gate static int 30447c478bd9Sstevel@tonic-gate parse_rctls(caddr_t ubuf, size_t buflen, nvlist_t **nvlp) 30457c478bd9Sstevel@tonic-gate { 30467c478bd9Sstevel@tonic-gate nvpair_t *nvp = NULL; 30477c478bd9Sstevel@tonic-gate nvlist_t *nvl = NULL; 30487c478bd9Sstevel@tonic-gate char *kbuf; 30497c478bd9Sstevel@tonic-gate int error; 30507c478bd9Sstevel@tonic-gate rctl_val_t rv; 30517c478bd9Sstevel@tonic-gate 30527c478bd9Sstevel@tonic-gate *nvlp = NULL; 30537c478bd9Sstevel@tonic-gate 30547c478bd9Sstevel@tonic-gate if (buflen == 0) 30557c478bd9Sstevel@tonic-gate return (0); 30567c478bd9Sstevel@tonic-gate 30577c478bd9Sstevel@tonic-gate if ((kbuf = kmem_alloc(buflen, KM_NOSLEEP)) == NULL) 30587c478bd9Sstevel@tonic-gate return (ENOMEM); 30597c478bd9Sstevel@tonic-gate if (copyin(ubuf, kbuf, buflen)) { 30607c478bd9Sstevel@tonic-gate error = EFAULT; 30617c478bd9Sstevel@tonic-gate goto out; 30627c478bd9Sstevel@tonic-gate } 30637c478bd9Sstevel@tonic-gate if (nvlist_unpack(kbuf, buflen, &nvl, KM_SLEEP) != 0) { 30647c478bd9Sstevel@tonic-gate /* 30657c478bd9Sstevel@tonic-gate * nvl may have been allocated/free'd, but the value set to 30667c478bd9Sstevel@tonic-gate * non-NULL, so we reset it here. 30677c478bd9Sstevel@tonic-gate */ 30687c478bd9Sstevel@tonic-gate nvl = NULL; 30697c478bd9Sstevel@tonic-gate error = EINVAL; 30707c478bd9Sstevel@tonic-gate goto out; 30717c478bd9Sstevel@tonic-gate } 30727c478bd9Sstevel@tonic-gate while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 30737c478bd9Sstevel@tonic-gate rctl_dict_entry_t *rde; 30747c478bd9Sstevel@tonic-gate rctl_hndl_t hndl; 30757c478bd9Sstevel@tonic-gate nvlist_t **nvlarray; 30767c478bd9Sstevel@tonic-gate uint_t i, nelem; 30777c478bd9Sstevel@tonic-gate char *name; 30787c478bd9Sstevel@tonic-gate 30797c478bd9Sstevel@tonic-gate error = EINVAL; 30807c478bd9Sstevel@tonic-gate name = nvpair_name(nvp); 30817c478bd9Sstevel@tonic-gate if (strncmp(nvpair_name(nvp), "zone.", sizeof ("zone.") - 1) 30827c478bd9Sstevel@tonic-gate != 0 || nvpair_type(nvp) != DATA_TYPE_NVLIST_ARRAY) { 30837c478bd9Sstevel@tonic-gate goto out; 30847c478bd9Sstevel@tonic-gate } 30857c478bd9Sstevel@tonic-gate if ((hndl = rctl_hndl_lookup(name)) == -1) { 30867c478bd9Sstevel@tonic-gate goto out; 30877c478bd9Sstevel@tonic-gate } 30887c478bd9Sstevel@tonic-gate rde = rctl_dict_lookup_hndl(hndl); 30897c478bd9Sstevel@tonic-gate error = nvpair_value_nvlist_array(nvp, &nvlarray, &nelem); 30907c478bd9Sstevel@tonic-gate ASSERT(error == 0); 30917c478bd9Sstevel@tonic-gate for (i = 0; i < nelem; i++) { 30927c478bd9Sstevel@tonic-gate if (error = nvlist2rctlval(nvlarray[i], &rv)) 30937c478bd9Sstevel@tonic-gate goto out; 30947c478bd9Sstevel@tonic-gate } 30957c478bd9Sstevel@tonic-gate if (rctl_invalid_value(rde, &rv)) { 30967c478bd9Sstevel@tonic-gate error = EINVAL; 30977c478bd9Sstevel@tonic-gate goto out; 30987c478bd9Sstevel@tonic-gate } 30997c478bd9Sstevel@tonic-gate } 31007c478bd9Sstevel@tonic-gate error = 0; 31017c478bd9Sstevel@tonic-gate *nvlp = nvl; 31027c478bd9Sstevel@tonic-gate out: 31037c478bd9Sstevel@tonic-gate kmem_free(kbuf, buflen); 31047c478bd9Sstevel@tonic-gate if (error && nvl != NULL) 31057c478bd9Sstevel@tonic-gate nvlist_free(nvl); 31067c478bd9Sstevel@tonic-gate return (error); 31077c478bd9Sstevel@tonic-gate } 31087c478bd9Sstevel@tonic-gate 31097c478bd9Sstevel@tonic-gate int 31107c478bd9Sstevel@tonic-gate zone_create_error(int er_error, int er_ext, int *er_out) { 31117c478bd9Sstevel@tonic-gate if (er_out != NULL) { 31127c478bd9Sstevel@tonic-gate if (copyout(&er_ext, er_out, sizeof (int))) { 31137c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 31147c478bd9Sstevel@tonic-gate } 31157c478bd9Sstevel@tonic-gate } 31167c478bd9Sstevel@tonic-gate return (set_errno(er_error)); 31177c478bd9Sstevel@tonic-gate } 31187c478bd9Sstevel@tonic-gate 311945916cd2Sjpk static int 312045916cd2Sjpk zone_set_label(zone_t *zone, const bslabel_t *lab, uint32_t doi) 312145916cd2Sjpk { 312245916cd2Sjpk ts_label_t *tsl; 312345916cd2Sjpk bslabel_t blab; 312445916cd2Sjpk 312545916cd2Sjpk /* Get label from user */ 312645916cd2Sjpk if (copyin(lab, &blab, sizeof (blab)) != 0) 312745916cd2Sjpk return (EFAULT); 312845916cd2Sjpk tsl = labelalloc(&blab, doi, KM_NOSLEEP); 312945916cd2Sjpk if (tsl == NULL) 313045916cd2Sjpk return (ENOMEM); 313145916cd2Sjpk 313245916cd2Sjpk zone->zone_slabel = tsl; 313345916cd2Sjpk return (0); 313445916cd2Sjpk } 313545916cd2Sjpk 3136fa9e4066Sahrens /* 3137fa9e4066Sahrens * Parses a comma-separated list of ZFS datasets into a per-zone dictionary. 3138fa9e4066Sahrens */ 3139fa9e4066Sahrens static int 3140fa9e4066Sahrens parse_zfs(zone_t *zone, caddr_t ubuf, size_t buflen) 3141fa9e4066Sahrens { 3142fa9e4066Sahrens char *kbuf; 3143fa9e4066Sahrens char *dataset, *next; 3144fa9e4066Sahrens zone_dataset_t *zd; 3145fa9e4066Sahrens size_t len; 3146fa9e4066Sahrens 3147fa9e4066Sahrens if (ubuf == NULL || buflen == 0) 3148fa9e4066Sahrens return (0); 3149fa9e4066Sahrens 3150fa9e4066Sahrens if ((kbuf = kmem_alloc(buflen, KM_NOSLEEP)) == NULL) 3151fa9e4066Sahrens return (ENOMEM); 3152fa9e4066Sahrens 3153fa9e4066Sahrens if (copyin(ubuf, kbuf, buflen) != 0) { 3154fa9e4066Sahrens kmem_free(kbuf, buflen); 3155fa9e4066Sahrens return (EFAULT); 3156fa9e4066Sahrens } 3157fa9e4066Sahrens 3158fa9e4066Sahrens dataset = next = kbuf; 3159fa9e4066Sahrens for (;;) { 3160fa9e4066Sahrens zd = kmem_alloc(sizeof (zone_dataset_t), KM_SLEEP); 3161fa9e4066Sahrens 3162fa9e4066Sahrens next = strchr(dataset, ','); 3163fa9e4066Sahrens 3164fa9e4066Sahrens if (next == NULL) 3165fa9e4066Sahrens len = strlen(dataset); 3166fa9e4066Sahrens else 3167fa9e4066Sahrens len = next - dataset; 3168fa9e4066Sahrens 3169fa9e4066Sahrens zd->zd_dataset = kmem_alloc(len + 1, KM_SLEEP); 3170fa9e4066Sahrens bcopy(dataset, zd->zd_dataset, len); 3171fa9e4066Sahrens zd->zd_dataset[len] = '\0'; 3172fa9e4066Sahrens 3173fa9e4066Sahrens list_insert_head(&zone->zone_datasets, zd); 3174fa9e4066Sahrens 3175fa9e4066Sahrens if (next == NULL) 3176fa9e4066Sahrens break; 3177fa9e4066Sahrens 3178fa9e4066Sahrens dataset = next + 1; 3179fa9e4066Sahrens } 3180fa9e4066Sahrens 3181fa9e4066Sahrens kmem_free(kbuf, buflen); 3182fa9e4066Sahrens return (0); 3183fa9e4066Sahrens } 3184fa9e4066Sahrens 31857c478bd9Sstevel@tonic-gate /* 31867c478bd9Sstevel@tonic-gate * System call to create/initialize a new zone named 'zone_name', rooted 31877c478bd9Sstevel@tonic-gate * at 'zone_root', with a zone-wide privilege limit set of 'zone_privs', 318845916cd2Sjpk * and initialized with the zone-wide rctls described in 'rctlbuf', and 318945916cd2Sjpk * with labeling set by 'match', 'doi', and 'label'. 31907c478bd9Sstevel@tonic-gate * 31917c478bd9Sstevel@tonic-gate * If extended error is non-null, we may use it to return more detailed 31927c478bd9Sstevel@tonic-gate * error information. 31937c478bd9Sstevel@tonic-gate */ 31947c478bd9Sstevel@tonic-gate static zoneid_t 31957c478bd9Sstevel@tonic-gate zone_create(const char *zone_name, const char *zone_root, 3196821c4a97Sdp const priv_set_t *zone_privs, size_t zone_privssz, 3197821c4a97Sdp caddr_t rctlbuf, size_t rctlbufsz, 319845916cd2Sjpk caddr_t zfsbuf, size_t zfsbufsz, int *extended_error, 319945916cd2Sjpk int match, uint32_t doi, const bslabel_t *label) 32007c478bd9Sstevel@tonic-gate { 32017c478bd9Sstevel@tonic-gate struct zsched_arg zarg; 32027c478bd9Sstevel@tonic-gate nvlist_t *rctls = NULL; 32037c478bd9Sstevel@tonic-gate proc_t *pp = curproc; 32047c478bd9Sstevel@tonic-gate zone_t *zone, *ztmp; 32057c478bd9Sstevel@tonic-gate zoneid_t zoneid; 32067c478bd9Sstevel@tonic-gate int error; 32077c478bd9Sstevel@tonic-gate int error2 = 0; 32087c478bd9Sstevel@tonic-gate char *str; 32097c478bd9Sstevel@tonic-gate cred_t *zkcr; 321048451833Scarlsonj boolean_t insert_label_hash; 32117c478bd9Sstevel@tonic-gate 32127c478bd9Sstevel@tonic-gate if (secpolicy_zone_config(CRED()) != 0) 32137c478bd9Sstevel@tonic-gate return (set_errno(EPERM)); 32147c478bd9Sstevel@tonic-gate 32157c478bd9Sstevel@tonic-gate /* can't boot zone from within chroot environment */ 32167c478bd9Sstevel@tonic-gate if (PTOU(pp)->u_rdir != NULL && PTOU(pp)->u_rdir != rootdir) 32177c478bd9Sstevel@tonic-gate return (zone_create_error(ENOTSUP, ZE_CHROOTED, 3218821c4a97Sdp extended_error)); 32197c478bd9Sstevel@tonic-gate 32207c478bd9Sstevel@tonic-gate zone = kmem_zalloc(sizeof (zone_t), KM_SLEEP); 32217c478bd9Sstevel@tonic-gate zoneid = zone->zone_id = id_alloc(zoneid_space); 32227c478bd9Sstevel@tonic-gate zone->zone_status = ZONE_IS_UNINITIALIZED; 32237c478bd9Sstevel@tonic-gate zone->zone_pool = pool_default; 32247c478bd9Sstevel@tonic-gate zone->zone_pool_mod = gethrtime(); 32257c478bd9Sstevel@tonic-gate zone->zone_psetid = ZONE_PS_INVAL; 32267c478bd9Sstevel@tonic-gate zone->zone_ncpus = 0; 32277c478bd9Sstevel@tonic-gate zone->zone_ncpus_online = 0; 32289acbbeafSnn zone->zone_restart_init = B_TRUE; 32299acbbeafSnn zone->zone_brand = &native_brand; 32309acbbeafSnn zone->zone_initname = NULL; 32317c478bd9Sstevel@tonic-gate mutex_init(&zone->zone_lock, NULL, MUTEX_DEFAULT, NULL); 32327c478bd9Sstevel@tonic-gate mutex_init(&zone->zone_nlwps_lock, NULL, MUTEX_DEFAULT, NULL); 3233*0209230bSgjelinek mutex_init(&zone->zone_mem_lock, NULL, MUTEX_DEFAULT, NULL); 32347c478bd9Sstevel@tonic-gate cv_init(&zone->zone_cv, NULL, CV_DEFAULT, NULL); 32357c478bd9Sstevel@tonic-gate list_create(&zone->zone_zsd, sizeof (struct zsd_entry), 32367c478bd9Sstevel@tonic-gate offsetof(struct zsd_entry, zsd_linkage)); 3237fa9e4066Sahrens list_create(&zone->zone_datasets, sizeof (zone_dataset_t), 3238fa9e4066Sahrens offsetof(zone_dataset_t, zd_linkage)); 323945916cd2Sjpk rw_init(&zone->zone_mlps.mlpl_rwlock, NULL, RW_DEFAULT, NULL); 32407c478bd9Sstevel@tonic-gate 32417c478bd9Sstevel@tonic-gate if ((error = zone_set_name(zone, zone_name)) != 0) { 32427c478bd9Sstevel@tonic-gate zone_free(zone); 32437c478bd9Sstevel@tonic-gate return (zone_create_error(error, 0, extended_error)); 32447c478bd9Sstevel@tonic-gate } 32457c478bd9Sstevel@tonic-gate 32467c478bd9Sstevel@tonic-gate if ((error = zone_set_root(zone, zone_root)) != 0) { 32477c478bd9Sstevel@tonic-gate zone_free(zone); 32487c478bd9Sstevel@tonic-gate return (zone_create_error(error, 0, extended_error)); 32497c478bd9Sstevel@tonic-gate } 3250821c4a97Sdp if ((error = zone_set_privset(zone, zone_privs, zone_privssz)) != 0) { 32517c478bd9Sstevel@tonic-gate zone_free(zone); 32527c478bd9Sstevel@tonic-gate return (zone_create_error(error, 0, extended_error)); 32537c478bd9Sstevel@tonic-gate } 32547c478bd9Sstevel@tonic-gate 32557c478bd9Sstevel@tonic-gate /* initialize node name to be the same as zone name */ 32567c478bd9Sstevel@tonic-gate zone->zone_nodename = kmem_alloc(_SYS_NMLN, KM_SLEEP); 32577c478bd9Sstevel@tonic-gate (void) strncpy(zone->zone_nodename, zone->zone_name, _SYS_NMLN); 32587c478bd9Sstevel@tonic-gate zone->zone_nodename[_SYS_NMLN - 1] = '\0'; 32597c478bd9Sstevel@tonic-gate 32607c478bd9Sstevel@tonic-gate zone->zone_domain = kmem_alloc(_SYS_NMLN, KM_SLEEP); 32617c478bd9Sstevel@tonic-gate zone->zone_domain[0] = '\0'; 32627c478bd9Sstevel@tonic-gate zone->zone_shares = 1; 3263824c205fSml zone->zone_shmmax = 0; 3264824c205fSml zone->zone_ipc.ipcq_shmmni = 0; 3265824c205fSml zone->zone_ipc.ipcq_semmni = 0; 3266824c205fSml zone->zone_ipc.ipcq_msgmni = 0; 32677c478bd9Sstevel@tonic-gate zone->zone_bootargs = NULL; 32683f2f09c1Sdp zone->zone_initname = 32693f2f09c1Sdp kmem_alloc(strlen(zone_default_initname) + 1, KM_SLEEP); 32703f2f09c1Sdp (void) strcpy(zone->zone_initname, zone_default_initname); 3271*0209230bSgjelinek zone->zone_nlwps = 0; 3272*0209230bSgjelinek zone->zone_nlwps_ctl = INT_MAX; 3273c6939658Ssl zone->zone_locked_mem = 0; 3274c6939658Ssl zone->zone_locked_mem_ctl = UINT64_MAX; 3275*0209230bSgjelinek zone->zone_max_swap = 0; 3276*0209230bSgjelinek zone->zone_max_swap_ctl = UINT64_MAX; 3277*0209230bSgjelinek zone0.zone_lockedmem_kstat = NULL; 3278*0209230bSgjelinek zone0.zone_swapresv_kstat = NULL; 32797c478bd9Sstevel@tonic-gate 32807c478bd9Sstevel@tonic-gate /* 32817c478bd9Sstevel@tonic-gate * Zsched initializes the rctls. 32827c478bd9Sstevel@tonic-gate */ 32837c478bd9Sstevel@tonic-gate zone->zone_rctls = NULL; 32847c478bd9Sstevel@tonic-gate 32857c478bd9Sstevel@tonic-gate if ((error = parse_rctls(rctlbuf, rctlbufsz, &rctls)) != 0) { 32867c478bd9Sstevel@tonic-gate zone_free(zone); 32877c478bd9Sstevel@tonic-gate return (zone_create_error(error, 0, extended_error)); 32887c478bd9Sstevel@tonic-gate } 32897c478bd9Sstevel@tonic-gate 3290fa9e4066Sahrens if ((error = parse_zfs(zone, zfsbuf, zfsbufsz)) != 0) { 3291fa9e4066Sahrens zone_free(zone); 3292fa9e4066Sahrens return (set_errno(error)); 3293fa9e4066Sahrens } 3294fa9e4066Sahrens 329545916cd2Sjpk /* 329645916cd2Sjpk * Read in the trusted system parameters: 329745916cd2Sjpk * match flag and sensitivity label. 329845916cd2Sjpk */ 329945916cd2Sjpk zone->zone_match = match; 330048451833Scarlsonj if (is_system_labeled() && !(zone->zone_flags & ZF_IS_SCRATCH)) { 330145916cd2Sjpk error = zone_set_label(zone, label, doi); 330245916cd2Sjpk if (error != 0) { 330345916cd2Sjpk zone_free(zone); 330445916cd2Sjpk return (set_errno(error)); 330545916cd2Sjpk } 330648451833Scarlsonj insert_label_hash = B_TRUE; 330745916cd2Sjpk } else { 330845916cd2Sjpk /* all zones get an admin_low label if system is not labeled */ 330945916cd2Sjpk zone->zone_slabel = l_admin_low; 331045916cd2Sjpk label_hold(l_admin_low); 331148451833Scarlsonj insert_label_hash = B_FALSE; 331245916cd2Sjpk } 331345916cd2Sjpk 33147c478bd9Sstevel@tonic-gate /* 33157c478bd9Sstevel@tonic-gate * Stop all lwps since that's what normally happens as part of fork(). 33167c478bd9Sstevel@tonic-gate * This needs to happen before we grab any locks to avoid deadlock 33177c478bd9Sstevel@tonic-gate * (another lwp in the process could be waiting for the held lock). 33187c478bd9Sstevel@tonic-gate */ 33197c478bd9Sstevel@tonic-gate if (curthread != pp->p_agenttp && !holdlwps(SHOLDFORK)) { 33207c478bd9Sstevel@tonic-gate zone_free(zone); 33217c478bd9Sstevel@tonic-gate if (rctls) 33227c478bd9Sstevel@tonic-gate nvlist_free(rctls); 33237c478bd9Sstevel@tonic-gate return (zone_create_error(error, 0, extended_error)); 33247c478bd9Sstevel@tonic-gate } 33257c478bd9Sstevel@tonic-gate 33267c478bd9Sstevel@tonic-gate if (block_mounts() == 0) { 33277c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 33287c478bd9Sstevel@tonic-gate if (curthread != pp->p_agenttp) 33297c478bd9Sstevel@tonic-gate continuelwps(pp); 33307c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 33317c478bd9Sstevel@tonic-gate zone_free(zone); 33327c478bd9Sstevel@tonic-gate if (rctls) 33337c478bd9Sstevel@tonic-gate nvlist_free(rctls); 33347c478bd9Sstevel@tonic-gate return (zone_create_error(error, 0, extended_error)); 33357c478bd9Sstevel@tonic-gate } 33367c478bd9Sstevel@tonic-gate 33377c478bd9Sstevel@tonic-gate /* 33387c478bd9Sstevel@tonic-gate * Set up credential for kernel access. After this, any errors 33397c478bd9Sstevel@tonic-gate * should go through the dance in errout rather than calling 33407c478bd9Sstevel@tonic-gate * zone_free directly. 33417c478bd9Sstevel@tonic-gate */ 33427c478bd9Sstevel@tonic-gate zone->zone_kcred = crdup(kcred); 33437c478bd9Sstevel@tonic-gate crsetzone(zone->zone_kcred, zone); 33447c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_PPRIV(zone->zone_kcred)); 33457c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_EPRIV(zone->zone_kcred)); 33467c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_IPRIV(zone->zone_kcred)); 33477c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_LPRIV(zone->zone_kcred)); 33487c478bd9Sstevel@tonic-gate 33497c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 33507c478bd9Sstevel@tonic-gate /* 33517c478bd9Sstevel@tonic-gate * Make sure zone doesn't already exist. 335245916cd2Sjpk * 335345916cd2Sjpk * If the system and zone are labeled, 335445916cd2Sjpk * make sure no other zone exists that has the same label. 33557c478bd9Sstevel@tonic-gate */ 335645916cd2Sjpk if ((ztmp = zone_find_all_by_name(zone->zone_name)) != NULL || 335748451833Scarlsonj (insert_label_hash && 335845916cd2Sjpk (ztmp = zone_find_all_by_label(zone->zone_slabel)) != NULL)) { 33597c478bd9Sstevel@tonic-gate zone_status_t status; 33607c478bd9Sstevel@tonic-gate 33617c478bd9Sstevel@tonic-gate status = zone_status_get(ztmp); 33627c478bd9Sstevel@tonic-gate if (status == ZONE_IS_READY || status == ZONE_IS_RUNNING) 33637c478bd9Sstevel@tonic-gate error = EEXIST; 33647c478bd9Sstevel@tonic-gate else 33657c478bd9Sstevel@tonic-gate error = EBUSY; 33667c478bd9Sstevel@tonic-gate goto errout; 33677c478bd9Sstevel@tonic-gate } 33687c478bd9Sstevel@tonic-gate 33697c478bd9Sstevel@tonic-gate /* 33707c478bd9Sstevel@tonic-gate * Don't allow zone creations which would cause one zone's rootpath to 33717c478bd9Sstevel@tonic-gate * be accessible from that of another (non-global) zone. 33727c478bd9Sstevel@tonic-gate */ 33737c478bd9Sstevel@tonic-gate if (zone_is_nested(zone->zone_rootpath)) { 33747c478bd9Sstevel@tonic-gate error = EBUSY; 33757c478bd9Sstevel@tonic-gate goto errout; 33767c478bd9Sstevel@tonic-gate } 33777c478bd9Sstevel@tonic-gate 33787c478bd9Sstevel@tonic-gate ASSERT(zonecount != 0); /* check for leaks */ 33797c478bd9Sstevel@tonic-gate if (zonecount + 1 > maxzones) { 33807c478bd9Sstevel@tonic-gate error = ENOMEM; 33817c478bd9Sstevel@tonic-gate goto errout; 33827c478bd9Sstevel@tonic-gate } 33837c478bd9Sstevel@tonic-gate 33847c478bd9Sstevel@tonic-gate if (zone_mount_count(zone->zone_rootpath) != 0) { 33857c478bd9Sstevel@tonic-gate error = EBUSY; 33867c478bd9Sstevel@tonic-gate error2 = ZE_AREMOUNTS; 33877c478bd9Sstevel@tonic-gate goto errout; 33887c478bd9Sstevel@tonic-gate } 33897c478bd9Sstevel@tonic-gate 33907c478bd9Sstevel@tonic-gate /* 33917c478bd9Sstevel@tonic-gate * Zone is still incomplete, but we need to drop all locks while 33927c478bd9Sstevel@tonic-gate * zsched() initializes this zone's kernel process. We 33937c478bd9Sstevel@tonic-gate * optimistically add the zone to the hashtable and associated 33947c478bd9Sstevel@tonic-gate * lists so a parallel zone_create() doesn't try to create the 33957c478bd9Sstevel@tonic-gate * same zone. 33967c478bd9Sstevel@tonic-gate */ 33977c478bd9Sstevel@tonic-gate zonecount++; 33987c478bd9Sstevel@tonic-gate (void) mod_hash_insert(zonehashbyid, 33997c478bd9Sstevel@tonic-gate (mod_hash_key_t)(uintptr_t)zone->zone_id, 34007c478bd9Sstevel@tonic-gate (mod_hash_val_t)(uintptr_t)zone); 34017c478bd9Sstevel@tonic-gate str = kmem_alloc(strlen(zone->zone_name) + 1, KM_SLEEP); 34027c478bd9Sstevel@tonic-gate (void) strcpy(str, zone->zone_name); 34037c478bd9Sstevel@tonic-gate (void) mod_hash_insert(zonehashbyname, (mod_hash_key_t)str, 34047c478bd9Sstevel@tonic-gate (mod_hash_val_t)(uintptr_t)zone); 340548451833Scarlsonj if (insert_label_hash) { 340645916cd2Sjpk (void) mod_hash_insert(zonehashbylabel, 340745916cd2Sjpk (mod_hash_key_t)zone->zone_slabel, (mod_hash_val_t)zone); 340848451833Scarlsonj zone->zone_flags |= ZF_HASHED_LABEL; 340945916cd2Sjpk } 341045916cd2Sjpk 34117c478bd9Sstevel@tonic-gate /* 34127c478bd9Sstevel@tonic-gate * Insert into active list. At this point there are no 'hold's 34137c478bd9Sstevel@tonic-gate * on the zone, but everyone else knows not to use it, so we can 34147c478bd9Sstevel@tonic-gate * continue to use it. zsched() will do a zone_hold() if the 34157c478bd9Sstevel@tonic-gate * newproc() is successful. 34167c478bd9Sstevel@tonic-gate */ 34177c478bd9Sstevel@tonic-gate list_insert_tail(&zone_active, zone); 34187c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 34197c478bd9Sstevel@tonic-gate 34207c478bd9Sstevel@tonic-gate zarg.zone = zone; 34217c478bd9Sstevel@tonic-gate zarg.nvlist = rctls; 34227c478bd9Sstevel@tonic-gate /* 34237c478bd9Sstevel@tonic-gate * The process, task, and project rctls are probably wrong; 34247c478bd9Sstevel@tonic-gate * we need an interface to get the default values of all rctls, 34257c478bd9Sstevel@tonic-gate * and initialize zsched appropriately. I'm not sure that that 34267c478bd9Sstevel@tonic-gate * makes much of a difference, though. 34277c478bd9Sstevel@tonic-gate */ 34287c478bd9Sstevel@tonic-gate if (error = newproc(zsched, (void *)&zarg, syscid, minclsyspri, NULL)) { 34297c478bd9Sstevel@tonic-gate /* 34307c478bd9Sstevel@tonic-gate * We need to undo all globally visible state. 34317c478bd9Sstevel@tonic-gate */ 34327c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 34337c478bd9Sstevel@tonic-gate list_remove(&zone_active, zone); 343448451833Scarlsonj if (zone->zone_flags & ZF_HASHED_LABEL) { 343545916cd2Sjpk ASSERT(zone->zone_slabel != NULL); 343645916cd2Sjpk (void) mod_hash_destroy(zonehashbylabel, 343745916cd2Sjpk (mod_hash_key_t)zone->zone_slabel); 343845916cd2Sjpk } 34397c478bd9Sstevel@tonic-gate (void) mod_hash_destroy(zonehashbyname, 34407c478bd9Sstevel@tonic-gate (mod_hash_key_t)(uintptr_t)zone->zone_name); 34417c478bd9Sstevel@tonic-gate (void) mod_hash_destroy(zonehashbyid, 34427c478bd9Sstevel@tonic-gate (mod_hash_key_t)(uintptr_t)zone->zone_id); 34437c478bd9Sstevel@tonic-gate ASSERT(zonecount > 1); 34447c478bd9Sstevel@tonic-gate zonecount--; 34457c478bd9Sstevel@tonic-gate goto errout; 34467c478bd9Sstevel@tonic-gate } 34477c478bd9Sstevel@tonic-gate 34487c478bd9Sstevel@tonic-gate /* 34497c478bd9Sstevel@tonic-gate * Zone creation can't fail from now on. 34507c478bd9Sstevel@tonic-gate */ 34517c478bd9Sstevel@tonic-gate 3452*0209230bSgjelinek /* 3453*0209230bSgjelinek * Create zone kstats 3454*0209230bSgjelinek */ 3455*0209230bSgjelinek zone_kstat_create(zone); 3456*0209230bSgjelinek 34577c478bd9Sstevel@tonic-gate /* 34587c478bd9Sstevel@tonic-gate * Let the other lwps continue. 34597c478bd9Sstevel@tonic-gate */ 34607c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 34617c478bd9Sstevel@tonic-gate if (curthread != pp->p_agenttp) 34627c478bd9Sstevel@tonic-gate continuelwps(pp); 34637c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 34647c478bd9Sstevel@tonic-gate 34657c478bd9Sstevel@tonic-gate /* 34667c478bd9Sstevel@tonic-gate * Wait for zsched to finish initializing the zone. 34677c478bd9Sstevel@tonic-gate */ 34687c478bd9Sstevel@tonic-gate zone_status_wait(zone, ZONE_IS_READY); 34697c478bd9Sstevel@tonic-gate /* 34707c478bd9Sstevel@tonic-gate * The zone is fully visible, so we can let mounts progress. 34717c478bd9Sstevel@tonic-gate */ 34727c478bd9Sstevel@tonic-gate resume_mounts(); 34737c478bd9Sstevel@tonic-gate if (rctls) 34747c478bd9Sstevel@tonic-gate nvlist_free(rctls); 34757c478bd9Sstevel@tonic-gate 34767c478bd9Sstevel@tonic-gate return (zoneid); 34777c478bd9Sstevel@tonic-gate 34787c478bd9Sstevel@tonic-gate errout: 34797c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 34807c478bd9Sstevel@tonic-gate /* 34817c478bd9Sstevel@tonic-gate * Let the other lwps continue. 34827c478bd9Sstevel@tonic-gate */ 34837c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 34847c478bd9Sstevel@tonic-gate if (curthread != pp->p_agenttp) 34857c478bd9Sstevel@tonic-gate continuelwps(pp); 34867c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 34877c478bd9Sstevel@tonic-gate 34887c478bd9Sstevel@tonic-gate resume_mounts(); 34897c478bd9Sstevel@tonic-gate if (rctls) 34907c478bd9Sstevel@tonic-gate nvlist_free(rctls); 34917c478bd9Sstevel@tonic-gate /* 34927c478bd9Sstevel@tonic-gate * There is currently one reference to the zone, a cred_ref from 34937c478bd9Sstevel@tonic-gate * zone_kcred. To free the zone, we call crfree, which will call 34947c478bd9Sstevel@tonic-gate * zone_cred_rele, which will call zone_free. 34957c478bd9Sstevel@tonic-gate */ 34967c478bd9Sstevel@tonic-gate ASSERT(zone->zone_cred_ref == 1); /* for zone_kcred */ 34977c478bd9Sstevel@tonic-gate ASSERT(zone->zone_kcred->cr_ref == 1); 34987c478bd9Sstevel@tonic-gate ASSERT(zone->zone_ref == 0); 34997c478bd9Sstevel@tonic-gate zkcr = zone->zone_kcred; 35007c478bd9Sstevel@tonic-gate zone->zone_kcred = NULL; 35017c478bd9Sstevel@tonic-gate crfree(zkcr); /* triggers call to zone_free */ 35027c478bd9Sstevel@tonic-gate return (zone_create_error(error, error2, extended_error)); 35037c478bd9Sstevel@tonic-gate } 35047c478bd9Sstevel@tonic-gate 35057c478bd9Sstevel@tonic-gate /* 35067c478bd9Sstevel@tonic-gate * Cause the zone to boot. This is pretty simple, since we let zoneadmd do 35073f2f09c1Sdp * the heavy lifting. initname is the path to the program to launch 35083f2f09c1Sdp * at the "top" of the zone; if this is NULL, we use the system default, 35093f2f09c1Sdp * which is stored at zone_default_initname. 35107c478bd9Sstevel@tonic-gate */ 35117c478bd9Sstevel@tonic-gate static int 35123f2f09c1Sdp zone_boot(zoneid_t zoneid) 35137c478bd9Sstevel@tonic-gate { 35147c478bd9Sstevel@tonic-gate int err; 35157c478bd9Sstevel@tonic-gate zone_t *zone; 35167c478bd9Sstevel@tonic-gate 35177c478bd9Sstevel@tonic-gate if (secpolicy_zone_config(CRED()) != 0) 35187c478bd9Sstevel@tonic-gate return (set_errno(EPERM)); 35197c478bd9Sstevel@tonic-gate if (zoneid < MIN_USERZONEID || zoneid > MAX_ZONEID) 35207c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 35217c478bd9Sstevel@tonic-gate 35227c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 35237c478bd9Sstevel@tonic-gate /* 35247c478bd9Sstevel@tonic-gate * Look for zone under hash lock to prevent races with calls to 35257c478bd9Sstevel@tonic-gate * zone_shutdown, zone_destroy, etc. 35267c478bd9Sstevel@tonic-gate */ 35277c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_id(zoneid)) == NULL) { 35287c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 35297c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 35307c478bd9Sstevel@tonic-gate } 35317c478bd9Sstevel@tonic-gate 35327c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 35337c478bd9Sstevel@tonic-gate if (zone_status_get(zone) != ZONE_IS_READY) { 35347c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 35357c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 35367c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 35377c478bd9Sstevel@tonic-gate } 35387c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_BOOTING); 35397c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 35407c478bd9Sstevel@tonic-gate 35417c478bd9Sstevel@tonic-gate zone_hold(zone); /* so we can use the zone_t later */ 35427c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 35437c478bd9Sstevel@tonic-gate 35447c478bd9Sstevel@tonic-gate if (zone_status_wait_sig(zone, ZONE_IS_RUNNING) == 0) { 35457c478bd9Sstevel@tonic-gate zone_rele(zone); 35467c478bd9Sstevel@tonic-gate return (set_errno(EINTR)); 35477c478bd9Sstevel@tonic-gate } 35487c478bd9Sstevel@tonic-gate 35497c478bd9Sstevel@tonic-gate /* 35507c478bd9Sstevel@tonic-gate * Boot (starting init) might have failed, in which case the zone 35517c478bd9Sstevel@tonic-gate * will go to the SHUTTING_DOWN state; an appropriate errno will 35527c478bd9Sstevel@tonic-gate * be placed in zone->zone_boot_err, and so we return that. 35537c478bd9Sstevel@tonic-gate */ 35547c478bd9Sstevel@tonic-gate err = zone->zone_boot_err; 35557c478bd9Sstevel@tonic-gate zone_rele(zone); 35567c478bd9Sstevel@tonic-gate return (err ? set_errno(err) : 0); 35577c478bd9Sstevel@tonic-gate } 35587c478bd9Sstevel@tonic-gate 35597c478bd9Sstevel@tonic-gate /* 35607c478bd9Sstevel@tonic-gate * Kills all user processes in the zone, waiting for them all to exit 35617c478bd9Sstevel@tonic-gate * before returning. 35627c478bd9Sstevel@tonic-gate */ 35637c478bd9Sstevel@tonic-gate static int 35647c478bd9Sstevel@tonic-gate zone_empty(zone_t *zone) 35657c478bd9Sstevel@tonic-gate { 35667c478bd9Sstevel@tonic-gate int waitstatus; 35677c478bd9Sstevel@tonic-gate 35687c478bd9Sstevel@tonic-gate /* 35697c478bd9Sstevel@tonic-gate * We need to drop zonehash_lock before killing all 35707c478bd9Sstevel@tonic-gate * processes, otherwise we'll deadlock with zone_find_* 35717c478bd9Sstevel@tonic-gate * which can be called from the exit path. 35727c478bd9Sstevel@tonic-gate */ 35737c478bd9Sstevel@tonic-gate ASSERT(MUTEX_NOT_HELD(&zonehash_lock)); 35747c478bd9Sstevel@tonic-gate while ((waitstatus = zone_status_timedwait_sig(zone, lbolt + hz, 35757c478bd9Sstevel@tonic-gate ZONE_IS_EMPTY)) == -1) { 35767c478bd9Sstevel@tonic-gate killall(zone->zone_id); 35777c478bd9Sstevel@tonic-gate } 35787c478bd9Sstevel@tonic-gate /* 35797c478bd9Sstevel@tonic-gate * return EINTR if we were signaled 35807c478bd9Sstevel@tonic-gate */ 35817c478bd9Sstevel@tonic-gate if (waitstatus == 0) 35827c478bd9Sstevel@tonic-gate return (EINTR); 35837c478bd9Sstevel@tonic-gate return (0); 35847c478bd9Sstevel@tonic-gate } 35857c478bd9Sstevel@tonic-gate 358645916cd2Sjpk /* 358745916cd2Sjpk * This function implements the policy for zone visibility. 358845916cd2Sjpk * 358945916cd2Sjpk * In standard Solaris, a non-global zone can only see itself. 359045916cd2Sjpk * 359145916cd2Sjpk * In Trusted Extensions, a labeled zone can lookup any zone whose label 359245916cd2Sjpk * it dominates. For this test, the label of the global zone is treated as 359345916cd2Sjpk * admin_high so it is special-cased instead of being checked for dominance. 359445916cd2Sjpk * 359545916cd2Sjpk * Returns true if zone attributes are viewable, false otherwise. 359645916cd2Sjpk */ 359745916cd2Sjpk static boolean_t 359845916cd2Sjpk zone_list_access(zone_t *zone) 359945916cd2Sjpk { 360045916cd2Sjpk 360145916cd2Sjpk if (curproc->p_zone == global_zone || 360245916cd2Sjpk curproc->p_zone == zone) { 360345916cd2Sjpk return (B_TRUE); 360448451833Scarlsonj } else if (is_system_labeled() && !(zone->zone_flags & ZF_IS_SCRATCH)) { 360545916cd2Sjpk bslabel_t *curproc_label; 360645916cd2Sjpk bslabel_t *zone_label; 360745916cd2Sjpk 360845916cd2Sjpk curproc_label = label2bslabel(curproc->p_zone->zone_slabel); 360945916cd2Sjpk zone_label = label2bslabel(zone->zone_slabel); 361045916cd2Sjpk 361145916cd2Sjpk if (zone->zone_id != GLOBAL_ZONEID && 361245916cd2Sjpk bldominates(curproc_label, zone_label)) { 361345916cd2Sjpk return (B_TRUE); 361445916cd2Sjpk } else { 361545916cd2Sjpk return (B_FALSE); 361645916cd2Sjpk } 361745916cd2Sjpk } else { 361845916cd2Sjpk return (B_FALSE); 361945916cd2Sjpk } 362045916cd2Sjpk } 362145916cd2Sjpk 36227c478bd9Sstevel@tonic-gate /* 36237c478bd9Sstevel@tonic-gate * Systemcall to start the zone's halt sequence. By the time this 36247c478bd9Sstevel@tonic-gate * function successfully returns, all user processes and kernel threads 36257c478bd9Sstevel@tonic-gate * executing in it will have exited, ZSD shutdown callbacks executed, 36267c478bd9Sstevel@tonic-gate * and the zone status set to ZONE_IS_DOWN. 36277c478bd9Sstevel@tonic-gate * 36287c478bd9Sstevel@tonic-gate * It is possible that the call will interrupt itself if the caller is the 36297c478bd9Sstevel@tonic-gate * parent of any process running in the zone, and doesn't have SIGCHLD blocked. 36307c478bd9Sstevel@tonic-gate */ 36317c478bd9Sstevel@tonic-gate static int 36327c478bd9Sstevel@tonic-gate zone_shutdown(zoneid_t zoneid) 36337c478bd9Sstevel@tonic-gate { 36347c478bd9Sstevel@tonic-gate int error; 36357c478bd9Sstevel@tonic-gate zone_t *zone; 36367c478bd9Sstevel@tonic-gate zone_status_t status; 36377c478bd9Sstevel@tonic-gate 36387c478bd9Sstevel@tonic-gate if (secpolicy_zone_config(CRED()) != 0) 36397c478bd9Sstevel@tonic-gate return (set_errno(EPERM)); 36407c478bd9Sstevel@tonic-gate if (zoneid < MIN_USERZONEID || zoneid > MAX_ZONEID) 36417c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 36427c478bd9Sstevel@tonic-gate 36437c478bd9Sstevel@tonic-gate /* 36447c478bd9Sstevel@tonic-gate * Block mounts so that VFS_MOUNT() can get an accurate view of 36457c478bd9Sstevel@tonic-gate * the zone's status with regards to ZONE_IS_SHUTTING down. 36467c478bd9Sstevel@tonic-gate * 36477c478bd9Sstevel@tonic-gate * e.g. NFS can fail the mount if it determines that the zone 36487c478bd9Sstevel@tonic-gate * has already begun the shutdown sequence. 36497c478bd9Sstevel@tonic-gate */ 36507c478bd9Sstevel@tonic-gate if (block_mounts() == 0) 36517c478bd9Sstevel@tonic-gate return (set_errno(EINTR)); 36527c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 36537c478bd9Sstevel@tonic-gate /* 36547c478bd9Sstevel@tonic-gate * Look for zone under hash lock to prevent races with other 36557c478bd9Sstevel@tonic-gate * calls to zone_shutdown and zone_destroy. 36567c478bd9Sstevel@tonic-gate */ 36577c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_id(zoneid)) == NULL) { 36587c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 36597c478bd9Sstevel@tonic-gate resume_mounts(); 36607c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 36617c478bd9Sstevel@tonic-gate } 36627c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 36637c478bd9Sstevel@tonic-gate status = zone_status_get(zone); 36647c478bd9Sstevel@tonic-gate /* 36657c478bd9Sstevel@tonic-gate * Fail if the zone isn't fully initialized yet. 36667c478bd9Sstevel@tonic-gate */ 36677c478bd9Sstevel@tonic-gate if (status < ZONE_IS_READY) { 36687c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 36697c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 36707c478bd9Sstevel@tonic-gate resume_mounts(); 36717c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 36727c478bd9Sstevel@tonic-gate } 36737c478bd9Sstevel@tonic-gate /* 36747c478bd9Sstevel@tonic-gate * If conditions required for zone_shutdown() to return have been met, 36757c478bd9Sstevel@tonic-gate * return success. 36767c478bd9Sstevel@tonic-gate */ 36777c478bd9Sstevel@tonic-gate if (status >= ZONE_IS_DOWN) { 36787c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 36797c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 36807c478bd9Sstevel@tonic-gate resume_mounts(); 36817c478bd9Sstevel@tonic-gate return (0); 36827c478bd9Sstevel@tonic-gate } 36837c478bd9Sstevel@tonic-gate /* 36847c478bd9Sstevel@tonic-gate * If zone_shutdown() hasn't been called before, go through the motions. 36857c478bd9Sstevel@tonic-gate * If it has, there's nothing to do but wait for the kernel threads to 36867c478bd9Sstevel@tonic-gate * drain. 36877c478bd9Sstevel@tonic-gate */ 36887c478bd9Sstevel@tonic-gate if (status < ZONE_IS_EMPTY) { 36897c478bd9Sstevel@tonic-gate uint_t ntasks; 36907c478bd9Sstevel@tonic-gate 36917c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 36927c478bd9Sstevel@tonic-gate if ((ntasks = zone->zone_ntasks) != 1) { 36937c478bd9Sstevel@tonic-gate /* 36947c478bd9Sstevel@tonic-gate * There's still stuff running. 36957c478bd9Sstevel@tonic-gate */ 36967c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_SHUTTING_DOWN); 36977c478bd9Sstevel@tonic-gate } 36987c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 36997c478bd9Sstevel@tonic-gate if (ntasks == 1) { 37007c478bd9Sstevel@tonic-gate /* 37017c478bd9Sstevel@tonic-gate * The only way to create another task is through 37027c478bd9Sstevel@tonic-gate * zone_enter(), which will block until we drop 37037c478bd9Sstevel@tonic-gate * zonehash_lock. The zone is empty. 37047c478bd9Sstevel@tonic-gate */ 37057c478bd9Sstevel@tonic-gate if (zone->zone_kthreads == NULL) { 37067c478bd9Sstevel@tonic-gate /* 37077c478bd9Sstevel@tonic-gate * Skip ahead to ZONE_IS_DOWN 37087c478bd9Sstevel@tonic-gate */ 37097c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_DOWN); 37107c478bd9Sstevel@tonic-gate } else { 37117c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_EMPTY); 37127c478bd9Sstevel@tonic-gate } 37137c478bd9Sstevel@tonic-gate } 37147c478bd9Sstevel@tonic-gate } 37157c478bd9Sstevel@tonic-gate zone_hold(zone); /* so we can use the zone_t later */ 37167c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 37177c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 37187c478bd9Sstevel@tonic-gate resume_mounts(); 37197c478bd9Sstevel@tonic-gate 37207c478bd9Sstevel@tonic-gate if (error = zone_empty(zone)) { 37217c478bd9Sstevel@tonic-gate zone_rele(zone); 37227c478bd9Sstevel@tonic-gate return (set_errno(error)); 37237c478bd9Sstevel@tonic-gate } 37247c478bd9Sstevel@tonic-gate /* 37257c478bd9Sstevel@tonic-gate * After the zone status goes to ZONE_IS_DOWN this zone will no 37267c478bd9Sstevel@tonic-gate * longer be notified of changes to the pools configuration, so 37277c478bd9Sstevel@tonic-gate * in order to not end up with a stale pool pointer, we point 37287c478bd9Sstevel@tonic-gate * ourselves at the default pool and remove all resource 37297c478bd9Sstevel@tonic-gate * visibility. This is especially important as the zone_t may 37307c478bd9Sstevel@tonic-gate * languish on the deathrow for a very long time waiting for 37317c478bd9Sstevel@tonic-gate * cred's to drain out. 37327c478bd9Sstevel@tonic-gate * 37337c478bd9Sstevel@tonic-gate * This rebinding of the zone can happen multiple times 37347c478bd9Sstevel@tonic-gate * (presumably due to interrupted or parallel systemcalls) 37357c478bd9Sstevel@tonic-gate * without any adverse effects. 37367c478bd9Sstevel@tonic-gate */ 37377c478bd9Sstevel@tonic-gate if (pool_lock_intr() != 0) { 37387c478bd9Sstevel@tonic-gate zone_rele(zone); 37397c478bd9Sstevel@tonic-gate return (set_errno(EINTR)); 37407c478bd9Sstevel@tonic-gate } 37417c478bd9Sstevel@tonic-gate if (pool_state == POOL_ENABLED) { 37427c478bd9Sstevel@tonic-gate mutex_enter(&cpu_lock); 37437c478bd9Sstevel@tonic-gate zone_pool_set(zone, pool_default); 37447c478bd9Sstevel@tonic-gate /* 37457c478bd9Sstevel@tonic-gate * The zone no longer needs to be able to see any cpus. 37467c478bd9Sstevel@tonic-gate */ 37477c478bd9Sstevel@tonic-gate zone_pset_set(zone, ZONE_PS_INVAL); 37487c478bd9Sstevel@tonic-gate mutex_exit(&cpu_lock); 37497c478bd9Sstevel@tonic-gate } 37507c478bd9Sstevel@tonic-gate pool_unlock(); 37517c478bd9Sstevel@tonic-gate 37527c478bd9Sstevel@tonic-gate /* 37537c478bd9Sstevel@tonic-gate * ZSD shutdown callbacks can be executed multiple times, hence 37547c478bd9Sstevel@tonic-gate * it is safe to not be holding any locks across this call. 37557c478bd9Sstevel@tonic-gate */ 37567c478bd9Sstevel@tonic-gate zone_zsd_callbacks(zone, ZSD_SHUTDOWN); 37577c478bd9Sstevel@tonic-gate 37587c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 37597c478bd9Sstevel@tonic-gate if (zone->zone_kthreads == NULL && zone_status_get(zone) < ZONE_IS_DOWN) 37607c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_DOWN); 37617c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 37627c478bd9Sstevel@tonic-gate 37637c478bd9Sstevel@tonic-gate /* 37647c478bd9Sstevel@tonic-gate * Wait for kernel threads to drain. 37657c478bd9Sstevel@tonic-gate */ 37667c478bd9Sstevel@tonic-gate if (!zone_status_wait_sig(zone, ZONE_IS_DOWN)) { 37677c478bd9Sstevel@tonic-gate zone_rele(zone); 37687c478bd9Sstevel@tonic-gate return (set_errno(EINTR)); 37697c478bd9Sstevel@tonic-gate } 37709acbbeafSnn 37719acbbeafSnn brand_unregister_zone(zone->zone_brand); 37729acbbeafSnn 37737c478bd9Sstevel@tonic-gate zone_rele(zone); 37747c478bd9Sstevel@tonic-gate return (0); 37757c478bd9Sstevel@tonic-gate } 37767c478bd9Sstevel@tonic-gate 37777c478bd9Sstevel@tonic-gate /* 37787c478bd9Sstevel@tonic-gate * Systemcall entry point to finalize the zone halt process. The caller 3779824c205fSml * must have already successfully called zone_shutdown(). 37807c478bd9Sstevel@tonic-gate * 37817c478bd9Sstevel@tonic-gate * Upon successful completion, the zone will have been fully destroyed: 37827c478bd9Sstevel@tonic-gate * zsched will have exited, destructor callbacks executed, and the zone 37837c478bd9Sstevel@tonic-gate * removed from the list of active zones. 37847c478bd9Sstevel@tonic-gate */ 37857c478bd9Sstevel@tonic-gate static int 37867c478bd9Sstevel@tonic-gate zone_destroy(zoneid_t zoneid) 37877c478bd9Sstevel@tonic-gate { 37887c478bd9Sstevel@tonic-gate uint64_t uniqid; 37897c478bd9Sstevel@tonic-gate zone_t *zone; 37907c478bd9Sstevel@tonic-gate zone_status_t status; 37917c478bd9Sstevel@tonic-gate 37927c478bd9Sstevel@tonic-gate if (secpolicy_zone_config(CRED()) != 0) 37937c478bd9Sstevel@tonic-gate return (set_errno(EPERM)); 37947c478bd9Sstevel@tonic-gate if (zoneid < MIN_USERZONEID || zoneid > MAX_ZONEID) 37957c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 37967c478bd9Sstevel@tonic-gate 37977c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 37987c478bd9Sstevel@tonic-gate /* 37997c478bd9Sstevel@tonic-gate * Look for zone under hash lock to prevent races with other 38007c478bd9Sstevel@tonic-gate * calls to zone_destroy. 38017c478bd9Sstevel@tonic-gate */ 38027c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_id(zoneid)) == NULL) { 38037c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38047c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 38057c478bd9Sstevel@tonic-gate } 38067c478bd9Sstevel@tonic-gate 38077c478bd9Sstevel@tonic-gate if (zone_mount_count(zone->zone_rootpath) != 0) { 38087c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38097c478bd9Sstevel@tonic-gate return (set_errno(EBUSY)); 38107c478bd9Sstevel@tonic-gate } 38117c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 38127c478bd9Sstevel@tonic-gate status = zone_status_get(zone); 38137c478bd9Sstevel@tonic-gate if (status < ZONE_IS_DOWN) { 38147c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 38157c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38167c478bd9Sstevel@tonic-gate return (set_errno(EBUSY)); 38177c478bd9Sstevel@tonic-gate } else if (status == ZONE_IS_DOWN) { 38187c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_DYING); /* Tell zsched to exit */ 38197c478bd9Sstevel@tonic-gate } 38207c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 38217c478bd9Sstevel@tonic-gate zone_hold(zone); 38227c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38237c478bd9Sstevel@tonic-gate 38247c478bd9Sstevel@tonic-gate /* 38257c478bd9Sstevel@tonic-gate * wait for zsched to exit 38267c478bd9Sstevel@tonic-gate */ 38277c478bd9Sstevel@tonic-gate zone_status_wait(zone, ZONE_IS_DEAD); 38287c478bd9Sstevel@tonic-gate zone_zsd_callbacks(zone, ZSD_DESTROY); 38297c478bd9Sstevel@tonic-gate uniqid = zone->zone_uniqid; 38307c478bd9Sstevel@tonic-gate zone_rele(zone); 38317c478bd9Sstevel@tonic-gate zone = NULL; /* potentially free'd */ 38327c478bd9Sstevel@tonic-gate 38337c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 38347c478bd9Sstevel@tonic-gate for (; /* ever */; ) { 38357c478bd9Sstevel@tonic-gate boolean_t unref; 38367c478bd9Sstevel@tonic-gate 38377c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_id(zoneid)) == NULL || 38387c478bd9Sstevel@tonic-gate zone->zone_uniqid != uniqid) { 38397c478bd9Sstevel@tonic-gate /* 38407c478bd9Sstevel@tonic-gate * The zone has gone away. Necessary conditions 38417c478bd9Sstevel@tonic-gate * are met, so we return success. 38427c478bd9Sstevel@tonic-gate */ 38437c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38447c478bd9Sstevel@tonic-gate return (0); 38457c478bd9Sstevel@tonic-gate } 38467c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_lock); 38477c478bd9Sstevel@tonic-gate unref = ZONE_IS_UNREF(zone); 38487c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_lock); 38497c478bd9Sstevel@tonic-gate if (unref) { 38507c478bd9Sstevel@tonic-gate /* 38517c478bd9Sstevel@tonic-gate * There is only one reference to the zone -- that 38527c478bd9Sstevel@tonic-gate * added when the zone was added to the hashtables -- 38537c478bd9Sstevel@tonic-gate * and things will remain this way until we drop 38547c478bd9Sstevel@tonic-gate * zonehash_lock... we can go ahead and cleanup the 38557c478bd9Sstevel@tonic-gate * zone. 38567c478bd9Sstevel@tonic-gate */ 38577c478bd9Sstevel@tonic-gate break; 38587c478bd9Sstevel@tonic-gate } 38597c478bd9Sstevel@tonic-gate 38607c478bd9Sstevel@tonic-gate if (cv_wait_sig(&zone_destroy_cv, &zonehash_lock) == 0) { 38617c478bd9Sstevel@tonic-gate /* Signaled */ 38627c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38637c478bd9Sstevel@tonic-gate return (set_errno(EINTR)); 38647c478bd9Sstevel@tonic-gate } 38657c478bd9Sstevel@tonic-gate 38667c478bd9Sstevel@tonic-gate } 38677c478bd9Sstevel@tonic-gate 3868*0209230bSgjelinek /* Get rid of the zone's kstats */ 3869*0209230bSgjelinek zone_kstat_delete(zone); 3870*0209230bSgjelinek 38717c478bd9Sstevel@tonic-gate /* 38727c478bd9Sstevel@tonic-gate * It is now safe to let the zone be recreated; remove it from the 38737c478bd9Sstevel@tonic-gate * lists. The memory will not be freed until the last cred 38747c478bd9Sstevel@tonic-gate * reference goes away. 38757c478bd9Sstevel@tonic-gate */ 38767c478bd9Sstevel@tonic-gate ASSERT(zonecount > 1); /* must be > 1; can't destroy global zone */ 38777c478bd9Sstevel@tonic-gate zonecount--; 38787c478bd9Sstevel@tonic-gate /* remove from active list and hash tables */ 38797c478bd9Sstevel@tonic-gate list_remove(&zone_active, zone); 38807c478bd9Sstevel@tonic-gate (void) mod_hash_destroy(zonehashbyname, 38817c478bd9Sstevel@tonic-gate (mod_hash_key_t)zone->zone_name); 38827c478bd9Sstevel@tonic-gate (void) mod_hash_destroy(zonehashbyid, 38837c478bd9Sstevel@tonic-gate (mod_hash_key_t)(uintptr_t)zone->zone_id); 388448451833Scarlsonj if (zone->zone_flags & ZF_HASHED_LABEL) 388545916cd2Sjpk (void) mod_hash_destroy(zonehashbylabel, 388645916cd2Sjpk (mod_hash_key_t)zone->zone_slabel); 38877c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 38887c478bd9Sstevel@tonic-gate 3889108322fbScarlsonj /* 3890108322fbScarlsonj * Release the root vnode; we're not using it anymore. Nor should any 3891108322fbScarlsonj * other thread that might access it exist. 3892108322fbScarlsonj */ 3893108322fbScarlsonj if (zone->zone_rootvp != NULL) { 3894108322fbScarlsonj VN_RELE(zone->zone_rootvp); 3895108322fbScarlsonj zone->zone_rootvp = NULL; 3896108322fbScarlsonj } 3897108322fbScarlsonj 38987c478bd9Sstevel@tonic-gate /* add to deathrow list */ 38997c478bd9Sstevel@tonic-gate mutex_enter(&zone_deathrow_lock); 39007c478bd9Sstevel@tonic-gate list_insert_tail(&zone_deathrow, zone); 39017c478bd9Sstevel@tonic-gate mutex_exit(&zone_deathrow_lock); 39027c478bd9Sstevel@tonic-gate 39037c478bd9Sstevel@tonic-gate /* 39047c478bd9Sstevel@tonic-gate * Drop last reference (which was added by zsched()), this will 39057c478bd9Sstevel@tonic-gate * free the zone unless there are outstanding cred references. 39067c478bd9Sstevel@tonic-gate */ 39077c478bd9Sstevel@tonic-gate zone_rele(zone); 39087c478bd9Sstevel@tonic-gate return (0); 39097c478bd9Sstevel@tonic-gate } 39107c478bd9Sstevel@tonic-gate 39117c478bd9Sstevel@tonic-gate /* 39127c478bd9Sstevel@tonic-gate * Systemcall entry point for zone_getattr(2). 39137c478bd9Sstevel@tonic-gate */ 39147c478bd9Sstevel@tonic-gate static ssize_t 39157c478bd9Sstevel@tonic-gate zone_getattr(zoneid_t zoneid, int attr, void *buf, size_t bufsize) 39167c478bd9Sstevel@tonic-gate { 39177c478bd9Sstevel@tonic-gate size_t size; 39187c478bd9Sstevel@tonic-gate int error = 0, err; 39197c478bd9Sstevel@tonic-gate zone_t *zone; 39207c478bd9Sstevel@tonic-gate char *zonepath; 39213f2f09c1Sdp char *outstr; 39227c478bd9Sstevel@tonic-gate zone_status_t zone_status; 39237c478bd9Sstevel@tonic-gate pid_t initpid; 39247c478bd9Sstevel@tonic-gate boolean_t global = (curproc->p_zone == global_zone); 392545916cd2Sjpk boolean_t curzone = (curproc->p_zone->zone_id == zoneid); 39267c478bd9Sstevel@tonic-gate 39277c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 39287c478bd9Sstevel@tonic-gate if ((zone = zone_find_all_by_id(zoneid)) == NULL) { 39297c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 39307c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 39317c478bd9Sstevel@tonic-gate } 39327c478bd9Sstevel@tonic-gate zone_status = zone_status_get(zone); 39337c478bd9Sstevel@tonic-gate if (zone_status < ZONE_IS_READY) { 39347c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 39357c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 39367c478bd9Sstevel@tonic-gate } 39377c478bd9Sstevel@tonic-gate zone_hold(zone); 39387c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 39397c478bd9Sstevel@tonic-gate 39407c478bd9Sstevel@tonic-gate /* 394145916cd2Sjpk * If not in the global zone, don't show information about other zones, 394245916cd2Sjpk * unless the system is labeled and the local zone's label dominates 394345916cd2Sjpk * the other zone. 39447c478bd9Sstevel@tonic-gate */ 394545916cd2Sjpk if (!zone_list_access(zone)) { 39467c478bd9Sstevel@tonic-gate zone_rele(zone); 39477c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 39487c478bd9Sstevel@tonic-gate } 39497c478bd9Sstevel@tonic-gate 39507c478bd9Sstevel@tonic-gate switch (attr) { 39517c478bd9Sstevel@tonic-gate case ZONE_ATTR_ROOT: 39527c478bd9Sstevel@tonic-gate if (global) { 39537c478bd9Sstevel@tonic-gate /* 39547c478bd9Sstevel@tonic-gate * Copy the path to trim the trailing "/" (except for 39557c478bd9Sstevel@tonic-gate * the global zone). 39567c478bd9Sstevel@tonic-gate */ 39577c478bd9Sstevel@tonic-gate if (zone != global_zone) 39587c478bd9Sstevel@tonic-gate size = zone->zone_rootpathlen - 1; 39597c478bd9Sstevel@tonic-gate else 39607c478bd9Sstevel@tonic-gate size = zone->zone_rootpathlen; 39617c478bd9Sstevel@tonic-gate zonepath = kmem_alloc(size, KM_SLEEP); 39627c478bd9Sstevel@tonic-gate bcopy(zone->zone_rootpath, zonepath, size); 39637c478bd9Sstevel@tonic-gate zonepath[size - 1] = '\0'; 39647c478bd9Sstevel@tonic-gate } else { 396545916cd2Sjpk if (curzone || !is_system_labeled()) { 396645916cd2Sjpk /* 396745916cd2Sjpk * Caller is not in the global zone. 396845916cd2Sjpk * if the query is on the current zone 396945916cd2Sjpk * or the system is not labeled, 397045916cd2Sjpk * just return faked-up path for current zone. 397145916cd2Sjpk */ 397245916cd2Sjpk zonepath = "/"; 397345916cd2Sjpk size = 2; 397445916cd2Sjpk } else { 397545916cd2Sjpk /* 397645916cd2Sjpk * Return related path for current zone. 397745916cd2Sjpk */ 397845916cd2Sjpk int prefix_len = strlen(zone_prefix); 397945916cd2Sjpk int zname_len = strlen(zone->zone_name); 398045916cd2Sjpk 398145916cd2Sjpk size = prefix_len + zname_len + 1; 398245916cd2Sjpk zonepath = kmem_alloc(size, KM_SLEEP); 398345916cd2Sjpk bcopy(zone_prefix, zonepath, prefix_len); 398445916cd2Sjpk bcopy(zone->zone_name, zonepath + 39853f2f09c1Sdp prefix_len, zname_len); 398645916cd2Sjpk zonepath[size - 1] = '\0'; 398745916cd2Sjpk } 39887c478bd9Sstevel@tonic-gate } 39897c478bd9Sstevel@tonic-gate if (bufsize > size) 39907c478bd9Sstevel@tonic-gate bufsize = size; 39917c478bd9Sstevel@tonic-gate if (buf != NULL) { 39927c478bd9Sstevel@tonic-gate err = copyoutstr(zonepath, buf, bufsize, NULL); 39937c478bd9Sstevel@tonic-gate if (err != 0 && err != ENAMETOOLONG) 39947c478bd9Sstevel@tonic-gate error = EFAULT; 39957c478bd9Sstevel@tonic-gate } 399645916cd2Sjpk if (global || (is_system_labeled() && !curzone)) 39977c478bd9Sstevel@tonic-gate kmem_free(zonepath, size); 39987c478bd9Sstevel@tonic-gate break; 39997c478bd9Sstevel@tonic-gate 40007c478bd9Sstevel@tonic-gate case ZONE_ATTR_NAME: 40017c478bd9Sstevel@tonic-gate size = strlen(zone->zone_name) + 1; 40027c478bd9Sstevel@tonic-gate if (bufsize > size) 40037c478bd9Sstevel@tonic-gate bufsize = size; 40047c478bd9Sstevel@tonic-gate if (buf != NULL) { 40057c478bd9Sstevel@tonic-gate err = copyoutstr(zone->zone_name, buf, bufsize, NULL); 40067c478bd9Sstevel@tonic-gate if (err != 0 && err != ENAMETOOLONG) 40077c478bd9Sstevel@tonic-gate error = EFAULT; 40087c478bd9Sstevel@tonic-gate } 40097c478bd9Sstevel@tonic-gate break; 40107c478bd9Sstevel@tonic-gate 40117c478bd9Sstevel@tonic-gate case ZONE_ATTR_STATUS: 40127c478bd9Sstevel@tonic-gate /* 40137c478bd9Sstevel@tonic-gate * Since we're not holding zonehash_lock, the zone status 40147c478bd9Sstevel@tonic-gate * may be anything; leave it up to userland to sort it out. 40157c478bd9Sstevel@tonic-gate */ 40167c478bd9Sstevel@tonic-gate size = sizeof (zone_status); 40177c478bd9Sstevel@tonic-gate if (bufsize > size) 40187c478bd9Sstevel@tonic-gate bufsize = size; 40197c478bd9Sstevel@tonic-gate zone_status = zone_status_get(zone); 40207c478bd9Sstevel@tonic-gate if (buf != NULL && 40217c478bd9Sstevel@tonic-gate copyout(&zone_status, buf, bufsize) != 0) 40227c478bd9Sstevel@tonic-gate error = EFAULT; 40237c478bd9Sstevel@tonic-gate break; 40247c478bd9Sstevel@tonic-gate case ZONE_ATTR_PRIVSET: 40257c478bd9Sstevel@tonic-gate size = sizeof (priv_set_t); 40267c478bd9Sstevel@tonic-gate if (bufsize > size) 40277c478bd9Sstevel@tonic-gate bufsize = size; 40287c478bd9Sstevel@tonic-gate if (buf != NULL && 40297c478bd9Sstevel@tonic-gate copyout(zone->zone_privset, buf, bufsize) != 0) 40307c478bd9Sstevel@tonic-gate error = EFAULT; 40317c478bd9Sstevel@tonic-gate break; 40327c478bd9Sstevel@tonic-gate case ZONE_ATTR_UNIQID: 40337c478bd9Sstevel@tonic-gate size = sizeof (zone->zone_uniqid); 40347c478bd9Sstevel@tonic-gate if (bufsize > size) 40357c478bd9Sstevel@tonic-gate bufsize = size; 40367c478bd9Sstevel@tonic-gate if (buf != NULL && 40377c478bd9Sstevel@tonic-gate copyout(&zone->zone_uniqid, buf, bufsize) != 0) 40387c478bd9Sstevel@tonic-gate error = EFAULT; 40397c478bd9Sstevel@tonic-gate break; 40407c478bd9Sstevel@tonic-gate case ZONE_ATTR_POOLID: 40417c478bd9Sstevel@tonic-gate { 40427c478bd9Sstevel@tonic-gate pool_t *pool; 40437c478bd9Sstevel@tonic-gate poolid_t poolid; 40447c478bd9Sstevel@tonic-gate 40457c478bd9Sstevel@tonic-gate if (pool_lock_intr() != 0) { 40467c478bd9Sstevel@tonic-gate error = EINTR; 40477c478bd9Sstevel@tonic-gate break; 40487c478bd9Sstevel@tonic-gate } 40497c478bd9Sstevel@tonic-gate pool = zone_pool_get(zone); 40507c478bd9Sstevel@tonic-gate poolid = pool->pool_id; 40517c478bd9Sstevel@tonic-gate pool_unlock(); 40527c478bd9Sstevel@tonic-gate size = sizeof (poolid); 40537c478bd9Sstevel@tonic-gate if (bufsize > size) 40547c478bd9Sstevel@tonic-gate bufsize = size; 40557c478bd9Sstevel@tonic-gate if (buf != NULL && copyout(&poolid, buf, size) != 0) 40567c478bd9Sstevel@tonic-gate error = EFAULT; 40577c478bd9Sstevel@tonic-gate } 40587c478bd9Sstevel@tonic-gate break; 405945916cd2Sjpk case ZONE_ATTR_SLBL: 406045916cd2Sjpk size = sizeof (bslabel_t); 406145916cd2Sjpk if (bufsize > size) 406245916cd2Sjpk bufsize = size; 406345916cd2Sjpk if (zone->zone_slabel == NULL) 406445916cd2Sjpk error = EINVAL; 406545916cd2Sjpk else if (buf != NULL && 406645916cd2Sjpk copyout(label2bslabel(zone->zone_slabel), buf, 406745916cd2Sjpk bufsize) != 0) 406845916cd2Sjpk error = EFAULT; 406945916cd2Sjpk break; 40707c478bd9Sstevel@tonic-gate case ZONE_ATTR_INITPID: 40717c478bd9Sstevel@tonic-gate size = sizeof (initpid); 40727c478bd9Sstevel@tonic-gate if (bufsize > size) 40737c478bd9Sstevel@tonic-gate bufsize = size; 40747c478bd9Sstevel@tonic-gate initpid = zone->zone_proc_initpid; 40757c478bd9Sstevel@tonic-gate if (initpid == -1) { 40767c478bd9Sstevel@tonic-gate error = ESRCH; 40777c478bd9Sstevel@tonic-gate break; 40787c478bd9Sstevel@tonic-gate } 40797c478bd9Sstevel@tonic-gate if (buf != NULL && 40807c478bd9Sstevel@tonic-gate copyout(&initpid, buf, bufsize) != 0) 40817c478bd9Sstevel@tonic-gate error = EFAULT; 40827c478bd9Sstevel@tonic-gate break; 40839acbbeafSnn case ZONE_ATTR_BRAND: 40849acbbeafSnn size = strlen(zone->zone_brand->b_name) + 1; 40859acbbeafSnn 40869acbbeafSnn if (bufsize > size) 40879acbbeafSnn bufsize = size; 40889acbbeafSnn if (buf != NULL) { 40899acbbeafSnn err = copyoutstr(zone->zone_brand->b_name, buf, 40909acbbeafSnn bufsize, NULL); 40919acbbeafSnn if (err != 0 && err != ENAMETOOLONG) 40929acbbeafSnn error = EFAULT; 40939acbbeafSnn } 40949acbbeafSnn break; 40953f2f09c1Sdp case ZONE_ATTR_INITNAME: 40963f2f09c1Sdp size = strlen(zone->zone_initname) + 1; 40973f2f09c1Sdp if (bufsize > size) 40983f2f09c1Sdp bufsize = size; 40993f2f09c1Sdp if (buf != NULL) { 41003f2f09c1Sdp err = copyoutstr(zone->zone_initname, buf, bufsize, 41013f2f09c1Sdp NULL); 41023f2f09c1Sdp if (err != 0 && err != ENAMETOOLONG) 41033f2f09c1Sdp error = EFAULT; 41043f2f09c1Sdp } 41053f2f09c1Sdp break; 41063f2f09c1Sdp case ZONE_ATTR_BOOTARGS: 41073f2f09c1Sdp if (zone->zone_bootargs == NULL) 41083f2f09c1Sdp outstr = ""; 41093f2f09c1Sdp else 41103f2f09c1Sdp outstr = zone->zone_bootargs; 41113f2f09c1Sdp size = strlen(outstr) + 1; 41123f2f09c1Sdp if (bufsize > size) 41133f2f09c1Sdp bufsize = size; 41143f2f09c1Sdp if (buf != NULL) { 41153f2f09c1Sdp err = copyoutstr(outstr, buf, bufsize, NULL); 41163f2f09c1Sdp if (err != 0 && err != ENAMETOOLONG) 41173f2f09c1Sdp error = EFAULT; 41183f2f09c1Sdp } 41193f2f09c1Sdp break; 4120*0209230bSgjelinek case ZONE_ATTR_PHYS_MCAP: 4121*0209230bSgjelinek size = sizeof (zone->zone_phys_mcap); 4122*0209230bSgjelinek if (bufsize > size) 4123*0209230bSgjelinek bufsize = size; 4124*0209230bSgjelinek if (buf != NULL && 4125*0209230bSgjelinek copyout(&zone->zone_phys_mcap, buf, bufsize) != 0) 4126*0209230bSgjelinek error = EFAULT; 4127*0209230bSgjelinek break; 4128*0209230bSgjelinek case ZONE_ATTR_SCHED_CLASS: 4129*0209230bSgjelinek mutex_enter(&class_lock); 4130*0209230bSgjelinek 4131*0209230bSgjelinek if (zone->zone_defaultcid >= loaded_classes) 4132*0209230bSgjelinek outstr = ""; 4133*0209230bSgjelinek else 4134*0209230bSgjelinek outstr = sclass[zone->zone_defaultcid].cl_name; 4135*0209230bSgjelinek size = strlen(outstr) + 1; 4136*0209230bSgjelinek if (bufsize > size) 4137*0209230bSgjelinek bufsize = size; 4138*0209230bSgjelinek if (buf != NULL) { 4139*0209230bSgjelinek err = copyoutstr(outstr, buf, bufsize, NULL); 4140*0209230bSgjelinek if (err != 0 && err != ENAMETOOLONG) 4141*0209230bSgjelinek error = EFAULT; 4142*0209230bSgjelinek } 4143*0209230bSgjelinek 4144*0209230bSgjelinek mutex_exit(&class_lock); 4145*0209230bSgjelinek break; 41467c478bd9Sstevel@tonic-gate default: 41479acbbeafSnn if ((attr >= ZONE_ATTR_BRAND_ATTRS) && ZONE_IS_BRANDED(zone)) { 41489acbbeafSnn size = bufsize; 41499acbbeafSnn error = ZBROP(zone)->b_getattr(zone, attr, buf, &size); 41509acbbeafSnn } else { 41519acbbeafSnn error = EINVAL; 41529acbbeafSnn } 41537c478bd9Sstevel@tonic-gate } 41547c478bd9Sstevel@tonic-gate zone_rele(zone); 41557c478bd9Sstevel@tonic-gate 41567c478bd9Sstevel@tonic-gate if (error) 41577c478bd9Sstevel@tonic-gate return (set_errno(error)); 41587c478bd9Sstevel@tonic-gate return ((ssize_t)size); 41597c478bd9Sstevel@tonic-gate } 41607c478bd9Sstevel@tonic-gate 41613f2f09c1Sdp /* 41623f2f09c1Sdp * Systemcall entry point for zone_setattr(2). 41633f2f09c1Sdp */ 41643f2f09c1Sdp /*ARGSUSED*/ 41653f2f09c1Sdp static int 41663f2f09c1Sdp zone_setattr(zoneid_t zoneid, int attr, void *buf, size_t bufsize) 41673f2f09c1Sdp { 41683f2f09c1Sdp zone_t *zone; 41693f2f09c1Sdp zone_status_t zone_status; 41709acbbeafSnn struct brand_attr *attrp; 41713f2f09c1Sdp int err; 41723f2f09c1Sdp 41733f2f09c1Sdp if (secpolicy_zone_config(CRED()) != 0) 41743f2f09c1Sdp return (set_errno(EPERM)); 41753f2f09c1Sdp 41763f2f09c1Sdp /* 4177*0209230bSgjelinek * Only the ZONE_ATTR_PHYS_MCAP attribute can be set on the 4178*0209230bSgjelinek * global zone. 41793f2f09c1Sdp */ 4180*0209230bSgjelinek if (zoneid == GLOBAL_ZONEID && attr != ZONE_ATTR_PHYS_MCAP) { 41813f2f09c1Sdp return (set_errno(EINVAL)); 41823f2f09c1Sdp } 41833f2f09c1Sdp 41843f2f09c1Sdp mutex_enter(&zonehash_lock); 41853f2f09c1Sdp if ((zone = zone_find_all_by_id(zoneid)) == NULL) { 41863f2f09c1Sdp mutex_exit(&zonehash_lock); 41873f2f09c1Sdp return (set_errno(EINVAL)); 41883f2f09c1Sdp } 41893f2f09c1Sdp zone_hold(zone); 41903f2f09c1Sdp mutex_exit(&zonehash_lock); 41913f2f09c1Sdp 4192*0209230bSgjelinek /* 4193*0209230bSgjelinek * At present most attributes can only be set on non-running, 4194*0209230bSgjelinek * non-global zones. 4195*0209230bSgjelinek */ 41963f2f09c1Sdp zone_status = zone_status_get(zone); 4197*0209230bSgjelinek if (attr != ZONE_ATTR_PHYS_MCAP && zone_status > ZONE_IS_READY) 41983f2f09c1Sdp goto done; 41993f2f09c1Sdp 42003f2f09c1Sdp switch (attr) { 42013f2f09c1Sdp case ZONE_ATTR_INITNAME: 42023f2f09c1Sdp err = zone_set_initname(zone, (const char *)buf); 42033f2f09c1Sdp break; 42043f2f09c1Sdp case ZONE_ATTR_BOOTARGS: 42053f2f09c1Sdp err = zone_set_bootargs(zone, (const char *)buf); 42063f2f09c1Sdp break; 42079acbbeafSnn case ZONE_ATTR_BRAND: 42089acbbeafSnn ASSERT(!ZONE_IS_BRANDED(zone)); 42099acbbeafSnn err = 0; 42109acbbeafSnn attrp = kmem_alloc(sizeof (struct brand_attr), KM_SLEEP); 42119acbbeafSnn if ((buf == NULL) || 42129acbbeafSnn (copyin(buf, attrp, sizeof (struct brand_attr)) != 0)) { 42139acbbeafSnn kmem_free(attrp, sizeof (struct brand_attr)); 42149acbbeafSnn err = EFAULT; 42159acbbeafSnn break; 42169acbbeafSnn } 42179acbbeafSnn 42189acbbeafSnn if (is_system_labeled() && strncmp(attrp->ba_brandname, 42199acbbeafSnn NATIVE_BRAND_NAME, MAXNAMELEN) != 0) { 42209acbbeafSnn err = EPERM; 42219acbbeafSnn break; 42229acbbeafSnn } 42239acbbeafSnn 42249acbbeafSnn zone->zone_brand = brand_register_zone(attrp); 42259acbbeafSnn kmem_free(attrp, sizeof (struct brand_attr)); 42269acbbeafSnn if (zone->zone_brand == NULL) 42279acbbeafSnn err = EINVAL; 42289acbbeafSnn break; 4229*0209230bSgjelinek case ZONE_ATTR_PHYS_MCAP: 4230*0209230bSgjelinek err = zone_set_phys_mcap(zone, (const uint64_t *)buf); 4231*0209230bSgjelinek break; 4232*0209230bSgjelinek case ZONE_ATTR_SCHED_CLASS: 4233*0209230bSgjelinek err = zone_set_sched_class(zone, (const char *)buf); 4234*0209230bSgjelinek break; 42353f2f09c1Sdp default: 42369acbbeafSnn if ((attr >= ZONE_ATTR_BRAND_ATTRS) && ZONE_IS_BRANDED(zone)) 42379acbbeafSnn err = ZBROP(zone)->b_setattr(zone, attr, buf, bufsize); 42389acbbeafSnn else 42399acbbeafSnn err = EINVAL; 42403f2f09c1Sdp } 42413f2f09c1Sdp 42423f2f09c1Sdp done: 42433f2f09c1Sdp zone_rele(zone); 42443f2f09c1Sdp return (err != 0 ? set_errno(err) : 0); 42453f2f09c1Sdp } 42463f2f09c1Sdp 42477c478bd9Sstevel@tonic-gate /* 42487c478bd9Sstevel@tonic-gate * Return zero if the process has at least one vnode mapped in to its 42497c478bd9Sstevel@tonic-gate * address space which shouldn't be allowed to change zones. 4250*0209230bSgjelinek * 4251*0209230bSgjelinek * Also return zero if the process has any shared mappings which reserve 4252*0209230bSgjelinek * swap. This is because the counting for zone.max-swap does not allow swap 4253*0209230bSgjelinek * revervation to be shared between zones. zone swap reservation is counted 4254*0209230bSgjelinek * on zone->zone_max_swap. 42557c478bd9Sstevel@tonic-gate */ 42567c478bd9Sstevel@tonic-gate static int 42577c478bd9Sstevel@tonic-gate as_can_change_zones(void) 42587c478bd9Sstevel@tonic-gate { 42597c478bd9Sstevel@tonic-gate proc_t *pp = curproc; 42607c478bd9Sstevel@tonic-gate struct seg *seg; 42617c478bd9Sstevel@tonic-gate struct as *as = pp->p_as; 42627c478bd9Sstevel@tonic-gate vnode_t *vp; 42637c478bd9Sstevel@tonic-gate int allow = 1; 42647c478bd9Sstevel@tonic-gate 42657c478bd9Sstevel@tonic-gate ASSERT(pp->p_as != &kas); 4266*0209230bSgjelinek AS_LOCK_ENTER(as, &as->a_lock, RW_READER); 42677c478bd9Sstevel@tonic-gate for (seg = AS_SEGFIRST(as); seg != NULL; seg = AS_SEGNEXT(as, seg)) { 4268*0209230bSgjelinek 4269*0209230bSgjelinek /* 4270*0209230bSgjelinek * Cannot enter zone with shared anon memory which 4271*0209230bSgjelinek * reserves swap. See comment above. 4272*0209230bSgjelinek */ 4273*0209230bSgjelinek if (seg_can_change_zones(seg) == B_FALSE) { 4274*0209230bSgjelinek allow = 0; 4275*0209230bSgjelinek break; 4276*0209230bSgjelinek } 42777c478bd9Sstevel@tonic-gate /* 42787c478bd9Sstevel@tonic-gate * if we can't get a backing vnode for this segment then skip 42797c478bd9Sstevel@tonic-gate * it. 42807c478bd9Sstevel@tonic-gate */ 42817c478bd9Sstevel@tonic-gate vp = NULL; 42827c478bd9Sstevel@tonic-gate if (SEGOP_GETVP(seg, seg->s_base, &vp) != 0 || vp == NULL) 42837c478bd9Sstevel@tonic-gate continue; 42847c478bd9Sstevel@tonic-gate if (!vn_can_change_zones(vp)) { /* bail on first match */ 42857c478bd9Sstevel@tonic-gate allow = 0; 42867c478bd9Sstevel@tonic-gate break; 42877c478bd9Sstevel@tonic-gate } 42887c478bd9Sstevel@tonic-gate } 4289*0209230bSgjelinek AS_LOCK_EXIT(as, &as->a_lock); 42907c478bd9Sstevel@tonic-gate return (allow); 42917c478bd9Sstevel@tonic-gate } 42927c478bd9Sstevel@tonic-gate 4293*0209230bSgjelinek /* 4294*0209230bSgjelinek * Count swap reserved by curproc's address space 4295*0209230bSgjelinek */ 4296*0209230bSgjelinek static size_t 4297*0209230bSgjelinek as_swresv(void) 4298*0209230bSgjelinek { 4299*0209230bSgjelinek proc_t *pp = curproc; 4300*0209230bSgjelinek struct seg *seg; 4301*0209230bSgjelinek struct as *as = pp->p_as; 4302*0209230bSgjelinek size_t swap = 0; 4303*0209230bSgjelinek 4304*0209230bSgjelinek ASSERT(pp->p_as != &kas); 4305*0209230bSgjelinek ASSERT(AS_WRITE_HELD(as, &as->a_lock)); 4306*0209230bSgjelinek for (seg = AS_SEGFIRST(as); seg != NULL; seg = AS_SEGNEXT(as, seg)) 4307*0209230bSgjelinek swap += seg_swresv(seg); 4308*0209230bSgjelinek 4309*0209230bSgjelinek return (swap); 4310*0209230bSgjelinek } 4311*0209230bSgjelinek 43127c478bd9Sstevel@tonic-gate /* 43137c478bd9Sstevel@tonic-gate * Systemcall entry point for zone_enter(). 43147c478bd9Sstevel@tonic-gate * 43157c478bd9Sstevel@tonic-gate * The current process is injected into said zone. In the process 43167c478bd9Sstevel@tonic-gate * it will change its project membership, privileges, rootdir/cwd, 43177c478bd9Sstevel@tonic-gate * zone-wide rctls, and pool association to match those of the zone. 43187c478bd9Sstevel@tonic-gate * 43197c478bd9Sstevel@tonic-gate * The first zone_enter() called while the zone is in the ZONE_IS_READY 43207c478bd9Sstevel@tonic-gate * state will transition it to ZONE_IS_RUNNING. Processes may only 43217c478bd9Sstevel@tonic-gate * enter a zone that is "ready" or "running". 43227c478bd9Sstevel@tonic-gate */ 43237c478bd9Sstevel@tonic-gate static int 43247c478bd9Sstevel@tonic-gate zone_enter(zoneid_t zoneid) 43257c478bd9Sstevel@tonic-gate { 43267c478bd9Sstevel@tonic-gate zone_t *zone; 43277c478bd9Sstevel@tonic-gate vnode_t *vp; 43287c478bd9Sstevel@tonic-gate proc_t *pp = curproc; 43297c478bd9Sstevel@tonic-gate contract_t *ct; 43307c478bd9Sstevel@tonic-gate cont_process_t *ctp; 43317c478bd9Sstevel@tonic-gate task_t *tk, *oldtk; 43327c478bd9Sstevel@tonic-gate kproject_t *zone_proj0; 43337c478bd9Sstevel@tonic-gate cred_t *cr, *newcr; 43347c478bd9Sstevel@tonic-gate pool_t *oldpool, *newpool; 43357c478bd9Sstevel@tonic-gate sess_t *sp; 43367c478bd9Sstevel@tonic-gate uid_t uid; 43377c478bd9Sstevel@tonic-gate zone_status_t status; 43387c478bd9Sstevel@tonic-gate int err = 0; 43397c478bd9Sstevel@tonic-gate rctl_entity_p_t e; 4340*0209230bSgjelinek size_t swap; 43417c478bd9Sstevel@tonic-gate 43427c478bd9Sstevel@tonic-gate if (secpolicy_zone_config(CRED()) != 0) 43437c478bd9Sstevel@tonic-gate return (set_errno(EPERM)); 43447c478bd9Sstevel@tonic-gate if (zoneid < MIN_USERZONEID || zoneid > MAX_ZONEID) 43457c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 43467c478bd9Sstevel@tonic-gate 43477c478bd9Sstevel@tonic-gate /* 43487c478bd9Sstevel@tonic-gate * Stop all lwps so we don't need to hold a lock to look at 43497c478bd9Sstevel@tonic-gate * curproc->p_zone. This needs to happen before we grab any 43507c478bd9Sstevel@tonic-gate * locks to avoid deadlock (another lwp in the process could 43517c478bd9Sstevel@tonic-gate * be waiting for the held lock). 43527c478bd9Sstevel@tonic-gate */ 43537c478bd9Sstevel@tonic-gate if (curthread != pp->p_agenttp && !holdlwps(SHOLDFORK)) 43547c478bd9Sstevel@tonic-gate return (set_errno(EINTR)); 43557c478bd9Sstevel@tonic-gate 43567c478bd9Sstevel@tonic-gate /* 43577c478bd9Sstevel@tonic-gate * Make sure we're not changing zones with files open or mapped in 43587c478bd9Sstevel@tonic-gate * to our address space which shouldn't be changing zones. 43597c478bd9Sstevel@tonic-gate */ 43607c478bd9Sstevel@tonic-gate if (!files_can_change_zones()) { 43617c478bd9Sstevel@tonic-gate err = EBADF; 43627c478bd9Sstevel@tonic-gate goto out; 43637c478bd9Sstevel@tonic-gate } 43647c478bd9Sstevel@tonic-gate if (!as_can_change_zones()) { 43657c478bd9Sstevel@tonic-gate err = EFAULT; 43667c478bd9Sstevel@tonic-gate goto out; 43677c478bd9Sstevel@tonic-gate } 43687c478bd9Sstevel@tonic-gate 43697c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 43707c478bd9Sstevel@tonic-gate if (pp->p_zone != global_zone) { 43717c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 43727c478bd9Sstevel@tonic-gate err = EINVAL; 43737c478bd9Sstevel@tonic-gate goto out; 43747c478bd9Sstevel@tonic-gate } 43757c478bd9Sstevel@tonic-gate 43767c478bd9Sstevel@tonic-gate zone = zone_find_all_by_id(zoneid); 43777c478bd9Sstevel@tonic-gate if (zone == NULL) { 43787c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 43797c478bd9Sstevel@tonic-gate err = EINVAL; 43807c478bd9Sstevel@tonic-gate goto out; 43817c478bd9Sstevel@tonic-gate } 43827c478bd9Sstevel@tonic-gate 43837c478bd9Sstevel@tonic-gate /* 43847c478bd9Sstevel@tonic-gate * To prevent processes in a zone from holding contracts on 43857c478bd9Sstevel@tonic-gate * extrazonal resources, and to avoid process contract 43867c478bd9Sstevel@tonic-gate * memberships which span zones, contract holders and processes 43877c478bd9Sstevel@tonic-gate * which aren't the sole members of their encapsulating process 43887c478bd9Sstevel@tonic-gate * contracts are not allowed to zone_enter. 43897c478bd9Sstevel@tonic-gate */ 43907c478bd9Sstevel@tonic-gate ctp = pp->p_ct_process; 43917c478bd9Sstevel@tonic-gate ct = &ctp->conp_contract; 43927c478bd9Sstevel@tonic-gate mutex_enter(&ct->ct_lock); 43937c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 43947c478bd9Sstevel@tonic-gate if ((avl_numnodes(&pp->p_ct_held) != 0) || (ctp->conp_nmembers != 1)) { 43957c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 43967c478bd9Sstevel@tonic-gate mutex_exit(&ct->ct_lock); 43977c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 43987c478bd9Sstevel@tonic-gate pool_unlock(); 43997c478bd9Sstevel@tonic-gate err = EINVAL; 44007c478bd9Sstevel@tonic-gate goto out; 44017c478bd9Sstevel@tonic-gate } 44027c478bd9Sstevel@tonic-gate 44037c478bd9Sstevel@tonic-gate /* 44047c478bd9Sstevel@tonic-gate * Moreover, we don't allow processes whose encapsulating 44057c478bd9Sstevel@tonic-gate * process contracts have inherited extrazonal contracts. 44067c478bd9Sstevel@tonic-gate * While it would be easier to eliminate all process contracts 44077c478bd9Sstevel@tonic-gate * with inherited contracts, we need to be able to give a 44087c478bd9Sstevel@tonic-gate * restarted init (or other zone-penetrating process) its 44097c478bd9Sstevel@tonic-gate * predecessor's contracts. 44107c478bd9Sstevel@tonic-gate */ 44117c478bd9Sstevel@tonic-gate if (ctp->conp_ninherited != 0) { 44127c478bd9Sstevel@tonic-gate contract_t *next; 44137c478bd9Sstevel@tonic-gate for (next = list_head(&ctp->conp_inherited); next; 44147c478bd9Sstevel@tonic-gate next = list_next(&ctp->conp_inherited, next)) { 44157c478bd9Sstevel@tonic-gate if (contract_getzuniqid(next) != zone->zone_uniqid) { 44167c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 44177c478bd9Sstevel@tonic-gate mutex_exit(&ct->ct_lock); 44187c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 44197c478bd9Sstevel@tonic-gate pool_unlock(); 44207c478bd9Sstevel@tonic-gate err = EINVAL; 44217c478bd9Sstevel@tonic-gate goto out; 44227c478bd9Sstevel@tonic-gate } 44237c478bd9Sstevel@tonic-gate } 44247c478bd9Sstevel@tonic-gate } 44257c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 44267c478bd9Sstevel@tonic-gate mutex_exit(&ct->ct_lock); 44277c478bd9Sstevel@tonic-gate 44287c478bd9Sstevel@tonic-gate status = zone_status_get(zone); 44297c478bd9Sstevel@tonic-gate if (status < ZONE_IS_READY || status >= ZONE_IS_SHUTTING_DOWN) { 44307c478bd9Sstevel@tonic-gate /* 44317c478bd9Sstevel@tonic-gate * Can't join 44327c478bd9Sstevel@tonic-gate */ 44337c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 44347c478bd9Sstevel@tonic-gate err = EINVAL; 44357c478bd9Sstevel@tonic-gate goto out; 44367c478bd9Sstevel@tonic-gate } 44377c478bd9Sstevel@tonic-gate 44387c478bd9Sstevel@tonic-gate /* 44397c478bd9Sstevel@tonic-gate * Make sure new priv set is within the permitted set for caller 44407c478bd9Sstevel@tonic-gate */ 44417c478bd9Sstevel@tonic-gate if (!priv_issubset(zone->zone_privset, &CR_OPPRIV(CRED()))) { 44427c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 44437c478bd9Sstevel@tonic-gate err = EPERM; 44447c478bd9Sstevel@tonic-gate goto out; 44457c478bd9Sstevel@tonic-gate } 44467c478bd9Sstevel@tonic-gate /* 44477c478bd9Sstevel@tonic-gate * We want to momentarily drop zonehash_lock while we optimistically 44487c478bd9Sstevel@tonic-gate * bind curproc to the pool it should be running in. This is safe 44497c478bd9Sstevel@tonic-gate * since the zone can't disappear (we have a hold on it). 44507c478bd9Sstevel@tonic-gate */ 44517c478bd9Sstevel@tonic-gate zone_hold(zone); 44527c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 44537c478bd9Sstevel@tonic-gate 44547c478bd9Sstevel@tonic-gate /* 44557c478bd9Sstevel@tonic-gate * Grab pool_lock to keep the pools configuration from changing 44567c478bd9Sstevel@tonic-gate * and to stop ourselves from getting rebound to another pool 44577c478bd9Sstevel@tonic-gate * until we join the zone. 44587c478bd9Sstevel@tonic-gate */ 44597c478bd9Sstevel@tonic-gate if (pool_lock_intr() != 0) { 44607c478bd9Sstevel@tonic-gate zone_rele(zone); 44617c478bd9Sstevel@tonic-gate err = EINTR; 44627c478bd9Sstevel@tonic-gate goto out; 44637c478bd9Sstevel@tonic-gate } 44647c478bd9Sstevel@tonic-gate ASSERT(secpolicy_pool(CRED()) == 0); 44657c478bd9Sstevel@tonic-gate /* 44667c478bd9Sstevel@tonic-gate * Bind ourselves to the pool currently associated with the zone. 44677c478bd9Sstevel@tonic-gate */ 44687c478bd9Sstevel@tonic-gate oldpool = curproc->p_pool; 44697c478bd9Sstevel@tonic-gate newpool = zone_pool_get(zone); 44707c478bd9Sstevel@tonic-gate if (pool_state == POOL_ENABLED && newpool != oldpool && 44717c478bd9Sstevel@tonic-gate (err = pool_do_bind(newpool, P_PID, P_MYID, 44727c478bd9Sstevel@tonic-gate POOL_BIND_ALL)) != 0) { 44737c478bd9Sstevel@tonic-gate pool_unlock(); 44747c478bd9Sstevel@tonic-gate zone_rele(zone); 44757c478bd9Sstevel@tonic-gate goto out; 44767c478bd9Sstevel@tonic-gate } 44777c478bd9Sstevel@tonic-gate 44787c478bd9Sstevel@tonic-gate /* 44797c478bd9Sstevel@tonic-gate * Grab cpu_lock now; we'll need it later when we call 44807c478bd9Sstevel@tonic-gate * task_join(). 44817c478bd9Sstevel@tonic-gate */ 44827c478bd9Sstevel@tonic-gate mutex_enter(&cpu_lock); 44837c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 44847c478bd9Sstevel@tonic-gate /* 44857c478bd9Sstevel@tonic-gate * Make sure the zone hasn't moved on since we dropped zonehash_lock. 44867c478bd9Sstevel@tonic-gate */ 44877c478bd9Sstevel@tonic-gate if (zone_status_get(zone) >= ZONE_IS_SHUTTING_DOWN) { 44887c478bd9Sstevel@tonic-gate /* 44897c478bd9Sstevel@tonic-gate * Can't join anymore. 44907c478bd9Sstevel@tonic-gate */ 44917c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 44927c478bd9Sstevel@tonic-gate mutex_exit(&cpu_lock); 44937c478bd9Sstevel@tonic-gate if (pool_state == POOL_ENABLED && 44947c478bd9Sstevel@tonic-gate newpool != oldpool) 44957c478bd9Sstevel@tonic-gate (void) pool_do_bind(oldpool, P_PID, P_MYID, 44967c478bd9Sstevel@tonic-gate POOL_BIND_ALL); 44977c478bd9Sstevel@tonic-gate pool_unlock(); 44987c478bd9Sstevel@tonic-gate zone_rele(zone); 44997c478bd9Sstevel@tonic-gate err = EINVAL; 45007c478bd9Sstevel@tonic-gate goto out; 45017c478bd9Sstevel@tonic-gate } 45027c478bd9Sstevel@tonic-gate 4503*0209230bSgjelinek /* 4504*0209230bSgjelinek * a_lock must be held while transfering locked memory and swap 4505*0209230bSgjelinek * reservation from the global zone to the non global zone because 4506*0209230bSgjelinek * asynchronous faults on the processes' address space can lock 4507*0209230bSgjelinek * memory and reserve swap via MCL_FUTURE and MAP_NORESERVE 4508*0209230bSgjelinek * segments respectively. 4509*0209230bSgjelinek */ 4510*0209230bSgjelinek AS_LOCK_ENTER(pp->as, &pp->p_as->a_lock, RW_WRITER); 4511*0209230bSgjelinek swap = as_swresv(); 45127c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 45137c478bd9Sstevel@tonic-gate zone_proj0 = zone->zone_zsched->p_task->tk_proj; 45147c478bd9Sstevel@tonic-gate /* verify that we do not exceed and task or lwp limits */ 45157c478bd9Sstevel@tonic-gate mutex_enter(&zone->zone_nlwps_lock); 45167c478bd9Sstevel@tonic-gate /* add new lwps to zone and zone's proj0 */ 45177c478bd9Sstevel@tonic-gate zone_proj0->kpj_nlwps += pp->p_lwpcnt; 45187c478bd9Sstevel@tonic-gate zone->zone_nlwps += pp->p_lwpcnt; 45197c478bd9Sstevel@tonic-gate /* add 1 task to zone's proj0 */ 45207c478bd9Sstevel@tonic-gate zone_proj0->kpj_ntasks += 1; 45217c478bd9Sstevel@tonic-gate mutex_exit(&zone->zone_nlwps_lock); 45227c478bd9Sstevel@tonic-gate 4523*0209230bSgjelinek mutex_enter(&zone->zone_mem_lock); 4524c6939658Ssl zone->zone_locked_mem += pp->p_locked_mem; 4525c6939658Ssl zone_proj0->kpj_data.kpd_locked_mem += pp->p_locked_mem; 4526*0209230bSgjelinek zone->zone_max_swap += swap; 4527*0209230bSgjelinek mutex_exit(&zone->zone_mem_lock); 4528c6939658Ssl 45297c478bd9Sstevel@tonic-gate /* remove lwps from proc's old zone and old project */ 45307c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_zone->zone_nlwps_lock); 45317c478bd9Sstevel@tonic-gate pp->p_zone->zone_nlwps -= pp->p_lwpcnt; 45327c478bd9Sstevel@tonic-gate pp->p_task->tk_proj->kpj_nlwps -= pp->p_lwpcnt; 45337c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_zone->zone_nlwps_lock); 45347c478bd9Sstevel@tonic-gate 4535*0209230bSgjelinek mutex_enter(&pp->p_zone->zone_mem_lock); 4536c6939658Ssl pp->p_zone->zone_locked_mem -= pp->p_locked_mem; 4537c6939658Ssl pp->p_task->tk_proj->kpj_data.kpd_locked_mem -= pp->p_locked_mem; 4538*0209230bSgjelinek pp->p_zone->zone_max_swap -= swap; 4539*0209230bSgjelinek mutex_exit(&pp->p_zone->zone_mem_lock); 4540c6939658Ssl 4541c6939658Ssl mutex_exit(&pp->p_lock); 4542*0209230bSgjelinek AS_LOCK_EXIT(pp->p_as, &pp->p_as->a_lock); 4543c6939658Ssl 45447c478bd9Sstevel@tonic-gate /* 45457c478bd9Sstevel@tonic-gate * Joining the zone cannot fail from now on. 45467c478bd9Sstevel@tonic-gate * 45477c478bd9Sstevel@tonic-gate * This means that a lot of the following code can be commonized and 45487c478bd9Sstevel@tonic-gate * shared with zsched(). 45497c478bd9Sstevel@tonic-gate */ 45507c478bd9Sstevel@tonic-gate 45517c478bd9Sstevel@tonic-gate /* 45527c478bd9Sstevel@tonic-gate * Reset the encapsulating process contract's zone. 45537c478bd9Sstevel@tonic-gate */ 45547c478bd9Sstevel@tonic-gate ASSERT(ct->ct_mzuniqid == GLOBAL_ZONEUNIQID); 45557c478bd9Sstevel@tonic-gate contract_setzuniqid(ct, zone->zone_uniqid); 45567c478bd9Sstevel@tonic-gate 45577c478bd9Sstevel@tonic-gate /* 45587c478bd9Sstevel@tonic-gate * Create a new task and associate the process with the project keyed 45597c478bd9Sstevel@tonic-gate * by (projid,zoneid). 45607c478bd9Sstevel@tonic-gate * 45617c478bd9Sstevel@tonic-gate * We might as well be in project 0; the global zone's projid doesn't 45627c478bd9Sstevel@tonic-gate * make much sense in a zone anyhow. 45637c478bd9Sstevel@tonic-gate * 45647c478bd9Sstevel@tonic-gate * This also increments zone_ntasks, and returns with p_lock held. 45657c478bd9Sstevel@tonic-gate */ 45667c478bd9Sstevel@tonic-gate tk = task_create(0, zone); 45677c478bd9Sstevel@tonic-gate oldtk = task_join(tk, 0); 45687c478bd9Sstevel@tonic-gate mutex_exit(&cpu_lock); 45697c478bd9Sstevel@tonic-gate 45707c478bd9Sstevel@tonic-gate pp->p_flag |= SZONETOP; 45717c478bd9Sstevel@tonic-gate pp->p_zone = zone; 45727c478bd9Sstevel@tonic-gate 45737c478bd9Sstevel@tonic-gate /* 45747c478bd9Sstevel@tonic-gate * call RCTLOP_SET functions on this proc 45757c478bd9Sstevel@tonic-gate */ 45767c478bd9Sstevel@tonic-gate e.rcep_p.zone = zone; 45777c478bd9Sstevel@tonic-gate e.rcep_t = RCENTITY_ZONE; 45787c478bd9Sstevel@tonic-gate (void) rctl_set_dup(NULL, NULL, pp, &e, zone->zone_rctls, NULL, 45797c478bd9Sstevel@tonic-gate RCD_CALLBACK); 45807c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 45817c478bd9Sstevel@tonic-gate 45827c478bd9Sstevel@tonic-gate /* 45837c478bd9Sstevel@tonic-gate * We don't need to hold any of zsched's locks here; not only do we know 45847c478bd9Sstevel@tonic-gate * the process and zone aren't going away, we know its session isn't 45857c478bd9Sstevel@tonic-gate * changing either. 45867c478bd9Sstevel@tonic-gate * 45877c478bd9Sstevel@tonic-gate * By joining zsched's session here, we mimic the behavior in the 45887c478bd9Sstevel@tonic-gate * global zone of init's sid being the pid of sched. We extend this 45897c478bd9Sstevel@tonic-gate * to all zlogin-like zone_enter()'ing processes as well. 45907c478bd9Sstevel@tonic-gate */ 45917c478bd9Sstevel@tonic-gate mutex_enter(&pidlock); 45927c478bd9Sstevel@tonic-gate sp = zone->zone_zsched->p_sessp; 45939acbbeafSnn sess_hold(zone->zone_zsched); 45947c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 45957c478bd9Sstevel@tonic-gate pgexit(pp); 45969acbbeafSnn sess_rele(pp->p_sessp, B_TRUE); 45977c478bd9Sstevel@tonic-gate pp->p_sessp = sp; 45987c478bd9Sstevel@tonic-gate pgjoin(pp, zone->zone_zsched->p_pidp); 4599*0209230bSgjelinek 4600*0209230bSgjelinek /* 4601*0209230bSgjelinek * If there is a default scheduling class for the zone and it is not 4602*0209230bSgjelinek * the class we are currently in, change all of the threads in the 4603*0209230bSgjelinek * process to the new class. We need to be holding pidlock & p_lock 4604*0209230bSgjelinek * when we call parmsset so this is a good place to do it. 4605*0209230bSgjelinek */ 4606*0209230bSgjelinek if (zone->zone_defaultcid > 0 && 4607*0209230bSgjelinek zone->zone_defaultcid != curthread->t_cid) { 4608*0209230bSgjelinek pcparms_t pcparms; 4609*0209230bSgjelinek kthread_id_t t; 4610*0209230bSgjelinek 4611*0209230bSgjelinek pcparms.pc_cid = zone->zone_defaultcid; 4612*0209230bSgjelinek pcparms.pc_clparms[0] = 0; 4613*0209230bSgjelinek 4614*0209230bSgjelinek /* 4615*0209230bSgjelinek * If setting the class fails, we still want to enter the zone. 4616*0209230bSgjelinek */ 4617*0209230bSgjelinek if ((t = pp->p_tlist) != NULL) { 4618*0209230bSgjelinek do { 4619*0209230bSgjelinek (void) parmsset(&pcparms, t); 4620*0209230bSgjelinek } while ((t = t->t_forw) != pp->p_tlist); 4621*0209230bSgjelinek } 4622*0209230bSgjelinek } 4623*0209230bSgjelinek 46247c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 46257c478bd9Sstevel@tonic-gate mutex_exit(&pidlock); 46267c478bd9Sstevel@tonic-gate 46277c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 46287c478bd9Sstevel@tonic-gate /* 46297c478bd9Sstevel@tonic-gate * We're firmly in the zone; let pools progress. 46307c478bd9Sstevel@tonic-gate */ 46317c478bd9Sstevel@tonic-gate pool_unlock(); 46327c478bd9Sstevel@tonic-gate task_rele(oldtk); 46337c478bd9Sstevel@tonic-gate /* 46347c478bd9Sstevel@tonic-gate * We don't need to retain a hold on the zone since we already 46357c478bd9Sstevel@tonic-gate * incremented zone_ntasks, so the zone isn't going anywhere. 46367c478bd9Sstevel@tonic-gate */ 46377c478bd9Sstevel@tonic-gate zone_rele(zone); 46387c478bd9Sstevel@tonic-gate 46397c478bd9Sstevel@tonic-gate /* 46407c478bd9Sstevel@tonic-gate * Chroot 46417c478bd9Sstevel@tonic-gate */ 46427c478bd9Sstevel@tonic-gate vp = zone->zone_rootvp; 46437c478bd9Sstevel@tonic-gate zone_chdir(vp, &PTOU(pp)->u_cdir, pp); 46447c478bd9Sstevel@tonic-gate zone_chdir(vp, &PTOU(pp)->u_rdir, pp); 46457c478bd9Sstevel@tonic-gate 46467c478bd9Sstevel@tonic-gate /* 46477c478bd9Sstevel@tonic-gate * Change process credentials 46487c478bd9Sstevel@tonic-gate */ 46497c478bd9Sstevel@tonic-gate newcr = cralloc(); 46507c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_crlock); 46517c478bd9Sstevel@tonic-gate cr = pp->p_cred; 46527c478bd9Sstevel@tonic-gate crcopy_to(cr, newcr); 46537c478bd9Sstevel@tonic-gate crsetzone(newcr, zone); 46547c478bd9Sstevel@tonic-gate pp->p_cred = newcr; 46557c478bd9Sstevel@tonic-gate 46567c478bd9Sstevel@tonic-gate /* 46577c478bd9Sstevel@tonic-gate * Restrict all process privilege sets to zone limit 46587c478bd9Sstevel@tonic-gate */ 46597c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_PPRIV(newcr)); 46607c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_EPRIV(newcr)); 46617c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_IPRIV(newcr)); 46627c478bd9Sstevel@tonic-gate priv_intersect(zone->zone_privset, &CR_LPRIV(newcr)); 46637c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_crlock); 46647c478bd9Sstevel@tonic-gate crset(pp, newcr); 46657c478bd9Sstevel@tonic-gate 46667c478bd9Sstevel@tonic-gate /* 46677c478bd9Sstevel@tonic-gate * Adjust upcount to reflect zone entry. 46687c478bd9Sstevel@tonic-gate */ 46697c478bd9Sstevel@tonic-gate uid = crgetruid(newcr); 46707c478bd9Sstevel@tonic-gate mutex_enter(&pidlock); 46717c478bd9Sstevel@tonic-gate upcount_dec(uid, GLOBAL_ZONEID); 46727c478bd9Sstevel@tonic-gate upcount_inc(uid, zoneid); 46737c478bd9Sstevel@tonic-gate mutex_exit(&pidlock); 46747c478bd9Sstevel@tonic-gate 46757c478bd9Sstevel@tonic-gate /* 46767c478bd9Sstevel@tonic-gate * Set up core file path and content. 46777c478bd9Sstevel@tonic-gate */ 46787c478bd9Sstevel@tonic-gate set_core_defaults(); 46797c478bd9Sstevel@tonic-gate 46807c478bd9Sstevel@tonic-gate out: 46817c478bd9Sstevel@tonic-gate /* 46827c478bd9Sstevel@tonic-gate * Let the other lwps continue. 46837c478bd9Sstevel@tonic-gate */ 46847c478bd9Sstevel@tonic-gate mutex_enter(&pp->p_lock); 46857c478bd9Sstevel@tonic-gate if (curthread != pp->p_agenttp) 46867c478bd9Sstevel@tonic-gate continuelwps(pp); 46877c478bd9Sstevel@tonic-gate mutex_exit(&pp->p_lock); 46887c478bd9Sstevel@tonic-gate 46897c478bd9Sstevel@tonic-gate return (err != 0 ? set_errno(err) : 0); 46907c478bd9Sstevel@tonic-gate } 46917c478bd9Sstevel@tonic-gate 46927c478bd9Sstevel@tonic-gate /* 46937c478bd9Sstevel@tonic-gate * Systemcall entry point for zone_list(2). 46947c478bd9Sstevel@tonic-gate * 46957c478bd9Sstevel@tonic-gate * Processes running in a (non-global) zone only see themselves. 469645916cd2Sjpk * On labeled systems, they see all zones whose label they dominate. 46977c478bd9Sstevel@tonic-gate */ 46987c478bd9Sstevel@tonic-gate static int 46997c478bd9Sstevel@tonic-gate zone_list(zoneid_t *zoneidlist, uint_t *numzones) 47007c478bd9Sstevel@tonic-gate { 47017c478bd9Sstevel@tonic-gate zoneid_t *zoneids; 470248451833Scarlsonj zone_t *zone, *myzone; 47037c478bd9Sstevel@tonic-gate uint_t user_nzones, real_nzones; 470445916cd2Sjpk uint_t domi_nzones; 470545916cd2Sjpk int error; 47067c478bd9Sstevel@tonic-gate 47077c478bd9Sstevel@tonic-gate if (copyin(numzones, &user_nzones, sizeof (uint_t)) != 0) 47087c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 47097c478bd9Sstevel@tonic-gate 471048451833Scarlsonj myzone = curproc->p_zone; 471148451833Scarlsonj if (myzone != global_zone) { 471245916cd2Sjpk bslabel_t *mybslab; 471345916cd2Sjpk 471445916cd2Sjpk if (!is_system_labeled()) { 471545916cd2Sjpk /* just return current zone */ 471645916cd2Sjpk real_nzones = domi_nzones = 1; 471745916cd2Sjpk zoneids = kmem_alloc(sizeof (zoneid_t), KM_SLEEP); 471848451833Scarlsonj zoneids[0] = myzone->zone_id; 471945916cd2Sjpk } else { 472045916cd2Sjpk /* return all zones that are dominated */ 472145916cd2Sjpk mutex_enter(&zonehash_lock); 472245916cd2Sjpk real_nzones = zonecount; 472345916cd2Sjpk domi_nzones = 0; 472445916cd2Sjpk if (real_nzones > 0) { 472545916cd2Sjpk zoneids = kmem_alloc(real_nzones * 472645916cd2Sjpk sizeof (zoneid_t), KM_SLEEP); 472748451833Scarlsonj mybslab = label2bslabel(myzone->zone_slabel); 472845916cd2Sjpk for (zone = list_head(&zone_active); 472945916cd2Sjpk zone != NULL; 473045916cd2Sjpk zone = list_next(&zone_active, zone)) { 473145916cd2Sjpk if (zone->zone_id == GLOBAL_ZONEID) 473245916cd2Sjpk continue; 473348451833Scarlsonj if (zone != myzone && 473448451833Scarlsonj (zone->zone_flags & ZF_IS_SCRATCH)) 473548451833Scarlsonj continue; 473648451833Scarlsonj /* 473748451833Scarlsonj * Note that a label always dominates 473848451833Scarlsonj * itself, so myzone is always included 473948451833Scarlsonj * in the list. 474048451833Scarlsonj */ 474145916cd2Sjpk if (bldominates(mybslab, 474245916cd2Sjpk label2bslabel(zone->zone_slabel))) { 474345916cd2Sjpk zoneids[domi_nzones++] = 474445916cd2Sjpk zone->zone_id; 474545916cd2Sjpk } 474645916cd2Sjpk } 474745916cd2Sjpk } 474845916cd2Sjpk mutex_exit(&zonehash_lock); 474945916cd2Sjpk } 47507c478bd9Sstevel@tonic-gate } else { 47517c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 47527c478bd9Sstevel@tonic-gate real_nzones = zonecount; 475345916cd2Sjpk domi_nzones = 0; 475445916cd2Sjpk if (real_nzones > 0) { 47557c478bd9Sstevel@tonic-gate zoneids = kmem_alloc(real_nzones * sizeof (zoneid_t), 47567c478bd9Sstevel@tonic-gate KM_SLEEP); 47577c478bd9Sstevel@tonic-gate for (zone = list_head(&zone_active); zone != NULL; 47587c478bd9Sstevel@tonic-gate zone = list_next(&zone_active, zone)) 475945916cd2Sjpk zoneids[domi_nzones++] = zone->zone_id; 476045916cd2Sjpk ASSERT(domi_nzones == real_nzones); 47617c478bd9Sstevel@tonic-gate } 47627c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 47637c478bd9Sstevel@tonic-gate } 47647c478bd9Sstevel@tonic-gate 476545916cd2Sjpk /* 476645916cd2Sjpk * If user has allocated space for fewer entries than we found, then 476745916cd2Sjpk * return only up to his limit. Either way, tell him exactly how many 476845916cd2Sjpk * we found. 476945916cd2Sjpk */ 477045916cd2Sjpk if (domi_nzones < user_nzones) 477145916cd2Sjpk user_nzones = domi_nzones; 477245916cd2Sjpk error = 0; 477345916cd2Sjpk if (copyout(&domi_nzones, numzones, sizeof (uint_t)) != 0) { 47747c478bd9Sstevel@tonic-gate error = EFAULT; 477545916cd2Sjpk } else if (zoneidlist != NULL && user_nzones != 0) { 47767c478bd9Sstevel@tonic-gate if (copyout(zoneids, zoneidlist, 47777c478bd9Sstevel@tonic-gate user_nzones * sizeof (zoneid_t)) != 0) 47787c478bd9Sstevel@tonic-gate error = EFAULT; 47797c478bd9Sstevel@tonic-gate } 47807c478bd9Sstevel@tonic-gate 478145916cd2Sjpk if (real_nzones > 0) 47827c478bd9Sstevel@tonic-gate kmem_free(zoneids, real_nzones * sizeof (zoneid_t)); 47837c478bd9Sstevel@tonic-gate 478445916cd2Sjpk if (error != 0) 47857c478bd9Sstevel@tonic-gate return (set_errno(error)); 47867c478bd9Sstevel@tonic-gate else 47877c478bd9Sstevel@tonic-gate return (0); 47887c478bd9Sstevel@tonic-gate } 47897c478bd9Sstevel@tonic-gate 47907c478bd9Sstevel@tonic-gate /* 47917c478bd9Sstevel@tonic-gate * Systemcall entry point for zone_lookup(2). 47927c478bd9Sstevel@tonic-gate * 479345916cd2Sjpk * Non-global zones are only able to see themselves and (on labeled systems) 479445916cd2Sjpk * the zones they dominate. 47957c478bd9Sstevel@tonic-gate */ 47967c478bd9Sstevel@tonic-gate static zoneid_t 47977c478bd9Sstevel@tonic-gate zone_lookup(const char *zone_name) 47987c478bd9Sstevel@tonic-gate { 47997c478bd9Sstevel@tonic-gate char *kname; 48007c478bd9Sstevel@tonic-gate zone_t *zone; 48017c478bd9Sstevel@tonic-gate zoneid_t zoneid; 48027c478bd9Sstevel@tonic-gate int err; 48037c478bd9Sstevel@tonic-gate 48047c478bd9Sstevel@tonic-gate if (zone_name == NULL) { 48057c478bd9Sstevel@tonic-gate /* return caller's zone id */ 48067c478bd9Sstevel@tonic-gate return (getzoneid()); 48077c478bd9Sstevel@tonic-gate } 48087c478bd9Sstevel@tonic-gate 48097c478bd9Sstevel@tonic-gate kname = kmem_zalloc(ZONENAME_MAX, KM_SLEEP); 48107c478bd9Sstevel@tonic-gate if ((err = copyinstr(zone_name, kname, ZONENAME_MAX, NULL)) != 0) { 48117c478bd9Sstevel@tonic-gate kmem_free(kname, ZONENAME_MAX); 48127c478bd9Sstevel@tonic-gate return (set_errno(err)); 48137c478bd9Sstevel@tonic-gate } 48147c478bd9Sstevel@tonic-gate 48157c478bd9Sstevel@tonic-gate mutex_enter(&zonehash_lock); 48167c478bd9Sstevel@tonic-gate zone = zone_find_all_by_name(kname); 48177c478bd9Sstevel@tonic-gate kmem_free(kname, ZONENAME_MAX); 481845916cd2Sjpk /* 481945916cd2Sjpk * In a non-global zone, can only lookup global and own name. 482045916cd2Sjpk * In Trusted Extensions zone label dominance rules apply. 482145916cd2Sjpk */ 482245916cd2Sjpk if (zone == NULL || 482345916cd2Sjpk zone_status_get(zone) < ZONE_IS_READY || 482445916cd2Sjpk !zone_list_access(zone)) { 48257c478bd9Sstevel@tonic-gate mutex_exit(&zonehash_lock); 48267c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 482745916cd2Sjpk } else { 482845916cd2Sjpk zoneid = zone->zone_id; 482945916cd2Sjpk mutex_exit(&zonehash_lock); 483045916cd2Sjpk return (zoneid); 48317c478bd9Sstevel@tonic-gate } 48327c478bd9Sstevel@tonic-gate } 48337c478bd9Sstevel@tonic-gate 4834821c4a97Sdp static int 4835821c4a97Sdp zone_version(int *version_arg) 4836821c4a97Sdp { 4837821c4a97Sdp int version = ZONE_SYSCALL_API_VERSION; 4838821c4a97Sdp 4839821c4a97Sdp if (copyout(&version, version_arg, sizeof (int)) != 0) 4840821c4a97Sdp return (set_errno(EFAULT)); 4841821c4a97Sdp return (0); 4842821c4a97Sdp } 4843821c4a97Sdp 48447c478bd9Sstevel@tonic-gate /* ARGSUSED */ 48457c478bd9Sstevel@tonic-gate long 4846fa9e4066Sahrens zone(int cmd, void *arg1, void *arg2, void *arg3, void *arg4) 48477c478bd9Sstevel@tonic-gate { 48487c478bd9Sstevel@tonic-gate zone_def zs; 48497c478bd9Sstevel@tonic-gate 48507c478bd9Sstevel@tonic-gate switch (cmd) { 48517c478bd9Sstevel@tonic-gate case ZONE_CREATE: 48527c478bd9Sstevel@tonic-gate if (get_udatamodel() == DATAMODEL_NATIVE) { 48537c478bd9Sstevel@tonic-gate if (copyin(arg1, &zs, sizeof (zone_def))) { 48547c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 48557c478bd9Sstevel@tonic-gate } 48567c478bd9Sstevel@tonic-gate } else { 48577c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 48587c478bd9Sstevel@tonic-gate zone_def32 zs32; 48597c478bd9Sstevel@tonic-gate 48607c478bd9Sstevel@tonic-gate if (copyin(arg1, &zs32, sizeof (zone_def32))) { 48617c478bd9Sstevel@tonic-gate return (set_errno(EFAULT)); 48627c478bd9Sstevel@tonic-gate } 48637c478bd9Sstevel@tonic-gate zs.zone_name = 48647c478bd9Sstevel@tonic-gate (const char *)(unsigned long)zs32.zone_name; 48657c478bd9Sstevel@tonic-gate zs.zone_root = 48667c478bd9Sstevel@tonic-gate (const char *)(unsigned long)zs32.zone_root; 48677c478bd9Sstevel@tonic-gate zs.zone_privs = 48687c478bd9Sstevel@tonic-gate (const struct priv_set *) 48697c478bd9Sstevel@tonic-gate (unsigned long)zs32.zone_privs; 48706f70df68Sdp zs.zone_privssz = zs32.zone_privssz; 48717c478bd9Sstevel@tonic-gate zs.rctlbuf = (caddr_t)(unsigned long)zs32.rctlbuf; 48727c478bd9Sstevel@tonic-gate zs.rctlbufsz = zs32.rctlbufsz; 4873fa9e4066Sahrens zs.zfsbuf = (caddr_t)(unsigned long)zs32.zfsbuf; 4874fa9e4066Sahrens zs.zfsbufsz = zs32.zfsbufsz; 48757c478bd9Sstevel@tonic-gate zs.extended_error = 48767c478bd9Sstevel@tonic-gate (int *)(unsigned long)zs32.extended_error; 487745916cd2Sjpk zs.match = zs32.match; 487845916cd2Sjpk zs.doi = zs32.doi; 487945916cd2Sjpk zs.label = (const bslabel_t *)(uintptr_t)zs32.label; 48807c478bd9Sstevel@tonic-gate #else 48817c478bd9Sstevel@tonic-gate panic("get_udatamodel() returned bogus result\n"); 48827c478bd9Sstevel@tonic-gate #endif 48837c478bd9Sstevel@tonic-gate } 48847c478bd9Sstevel@tonic-gate 48857c478bd9Sstevel@tonic-gate return (zone_create(zs.zone_name, zs.zone_root, 4886821c4a97Sdp zs.zone_privs, zs.zone_privssz, 4887821c4a97Sdp (caddr_t)zs.rctlbuf, zs.rctlbufsz, 4888821c4a97Sdp (caddr_t)zs.zfsbuf, zs.zfsbufsz, 488945916cd2Sjpk zs.extended_error, zs.match, zs.doi, 489045916cd2Sjpk zs.label)); 48917c478bd9Sstevel@tonic-gate case ZONE_BOOT: 48923f2f09c1Sdp return (zone_boot((zoneid_t)(uintptr_t)arg1)); 48937c478bd9Sstevel@tonic-gate case ZONE_DESTROY: 48947c478bd9Sstevel@tonic-gate return (zone_destroy((zoneid_t)(uintptr_t)arg1)); 48957c478bd9Sstevel@tonic-gate case ZONE_GETATTR: 48967c478bd9Sstevel@tonic-gate return (zone_getattr((zoneid_t)(uintptr_t)arg1, 48977c478bd9Sstevel@tonic-gate (int)(uintptr_t)arg2, arg3, (size_t)arg4)); 48983f2f09c1Sdp case ZONE_SETATTR: 48993f2f09c1Sdp return (zone_setattr((zoneid_t)(uintptr_t)arg1, 49003f2f09c1Sdp (int)(uintptr_t)arg2, arg3, (size_t)arg4)); 49017c478bd9Sstevel@tonic-gate case ZONE_ENTER: 49027c478bd9Sstevel@tonic-gate return (zone_enter((zoneid_t)(uintptr_t)arg1)); 49037c478bd9Sstevel@tonic-gate case ZONE_LIST: 49047c478bd9Sstevel@tonic-gate return (zone_list((zoneid_t *)arg1, (uint_t *)arg2)); 49057c478bd9Sstevel@tonic-gate case ZONE_SHUTDOWN: 49067c478bd9Sstevel@tonic-gate return (zone_shutdown((zoneid_t)(uintptr_t)arg1)); 49077c478bd9Sstevel@tonic-gate case ZONE_LOOKUP: 49087c478bd9Sstevel@tonic-gate return (zone_lookup((const char *)arg1)); 4909821c4a97Sdp case ZONE_VERSION: 4910821c4a97Sdp return (zone_version((int *)arg1)); 49117c478bd9Sstevel@tonic-gate default: 49127c478bd9Sstevel@tonic-gate return (set_errno(EINVAL)); 49137c478bd9Sstevel@tonic-gate } 49147c478bd9Sstevel@tonic-gate } 49157c478bd9Sstevel@tonic-gate 49167c478bd9Sstevel@tonic-gate struct zarg { 49177c478bd9Sstevel@tonic-gate zone_t *zone; 49187c478bd9Sstevel@tonic-gate zone_cmd_arg_t arg; 49197c478bd9Sstevel@tonic-gate }; 49207c478bd9Sstevel@tonic-gate 49217c478bd9Sstevel@tonic-gate static int 49227c478bd9Sstevel@tonic-gate zone_lookup_door(const char *zone_name, door_handle_t *doorp) 49237c478bd9Sstevel@tonic-gate { 49247c478bd9Sstevel@tonic-gate char *buf; 49257c478bd9Sstevel@tonic-gate size_t buflen; 49267c478bd9Sstevel@tonic-gate int error; 49277c478bd9Sstevel@tonic-gate 49287c478bd9Sstevel@tonic-gate buflen = sizeof (ZONE_DOOR_PATH) + strlen(zone_name); 49297c478bd9Sstevel@tonic-gate buf = kmem_alloc(buflen, KM_SLEEP); 49307c478bd9Sstevel@tonic-gate (void) snprintf(buf, buflen, ZONE_DOOR_PATH, zone_name); 49317c478bd9Sstevel@tonic-gate error = door_ki_open(buf, doorp); 49327c478bd9Sstevel@tonic-gate kmem_free(buf, buflen); 49337c478bd9Sstevel@tonic-gate return (error); 49347c478bd9Sstevel@tonic-gate } 49357c478bd9Sstevel@tonic-gate 49367c478bd9Sstevel@tonic-gate static void 49377c478bd9Sstevel@tonic-gate zone_release_door(door_handle_t *doorp) 49387c478bd9Sstevel@tonic-gate { 49397c478bd9Sstevel@tonic-gate door_ki_rele(*doorp); 49407c478bd9Sstevel@tonic-gate *doorp = NULL; 49417c478bd9Sstevel@tonic-gate } 49427c478bd9Sstevel@tonic-gate 49437c478bd9Sstevel@tonic-gate static void 49447c478bd9Sstevel@tonic-gate zone_ki_call_zoneadmd(struct zarg *zargp) 49457c478bd9Sstevel@tonic-gate { 49467c478bd9Sstevel@tonic-gate door_handle_t door = NULL; 49477c478bd9Sstevel@tonic-gate door_arg_t darg, save_arg; 49487c478bd9Sstevel@tonic-gate char *zone_name; 49497c478bd9Sstevel@tonic-gate size_t zone_namelen; 49507c478bd9Sstevel@tonic-gate zoneid_t zoneid; 49517c478bd9Sstevel@tonic-gate zone_t *zone; 49527c478bd9Sstevel@tonic-gate zone_cmd_arg_t arg; 49537c478bd9Sstevel@tonic-gate uint64_t uniqid; 49547c478bd9Sstevel@tonic-gate size_t size; 49557c478bd9Sstevel@tonic-gate int error; 49567c478bd9Sstevel@tonic-gate int retry; 49577c478bd9Sstevel@tonic-gate 49587c478bd9Sstevel@tonic-gate zone = zargp->zone; 49597c478bd9Sstevel@tonic-gate arg = zargp->arg; 49607c478bd9Sstevel@tonic-gate kmem_free(zargp, sizeof (*zargp)); 49617c478bd9Sstevel@tonic-gate 49627c478bd9Sstevel@tonic-gate zone_namelen = strlen(zone->zone_name) + 1; 49637c478bd9Sstevel@tonic-gate zone_name = kmem_alloc(zone_namelen, KM_SLEEP); 49647c478bd9Sstevel@tonic-gate bcopy(zone->zone_name, zone_name, zone_namelen); 49657c478bd9Sstevel@tonic-gate zoneid = zone->zone_id; 49667c478bd9Sstevel@tonic-gate uniqid = zone->zone_uniqid; 49677c478bd9Sstevel@tonic-gate /* 49687c478bd9Sstevel@tonic-gate * zoneadmd may be down, but at least we can empty out the zone. 49697c478bd9Sstevel@tonic-gate * We can ignore the return value of zone_empty() since we're called 49707c478bd9Sstevel@tonic-gate * from a kernel thread and know we won't be delivered any signals. 49717c478bd9Sstevel@tonic-gate */ 49727c478bd9Sstevel@tonic-gate ASSERT(curproc == &p0); 49737c478bd9Sstevel@tonic-gate (void) zone_empty(zone); 49747c478bd9Sstevel@tonic-gate ASSERT(zone_status_get(zone) >= ZONE_IS_EMPTY); 49757c478bd9Sstevel@tonic-gate zone_rele(zone); 49767c478bd9Sstevel@tonic-gate 49777c478bd9Sstevel@tonic-gate size = sizeof (arg); 49787c478bd9Sstevel@tonic-gate darg.rbuf = (char *)&arg; 49797c478bd9Sstevel@tonic-gate darg.data_ptr = (char *)&arg; 49807c478bd9Sstevel@tonic-gate darg.rsize = size; 49817c478bd9Sstevel@tonic-gate darg.data_size = size; 49827c478bd9Sstevel@tonic-gate darg.desc_ptr = NULL; 49837c478bd9Sstevel@tonic-gate darg.desc_num = 0; 49847c478bd9Sstevel@tonic-gate 49857c478bd9Sstevel@tonic-gate save_arg = darg; 49867c478bd9Sstevel@tonic-gate /* 49877c478bd9Sstevel@tonic-gate * Since we're not holding a reference to the zone, any number of 49887c478bd9Sstevel@tonic-gate * things can go wrong, including the zone disappearing before we get a 49897c478bd9Sstevel@tonic-gate * chance to talk to zoneadmd. 49907c478bd9Sstevel@tonic-gate */ 49917c478bd9Sstevel@tonic-gate for (retry = 0; /* forever */; retry++) { 49927c478bd9Sstevel@tonic-gate if (door == NULL && 49937c478bd9Sstevel@tonic-gate (error = zone_lookup_door(zone_name, &door)) != 0) { 49947c478bd9Sstevel@tonic-gate goto next; 49957c478bd9Sstevel@tonic-gate } 49967c478bd9Sstevel@tonic-gate ASSERT(door != NULL); 49977c478bd9Sstevel@tonic-gate 49987c478bd9Sstevel@tonic-gate if ((error = door_ki_upcall(door, &darg)) == 0) { 49997c478bd9Sstevel@tonic-gate break; 50007c478bd9Sstevel@tonic-gate } 50017c478bd9Sstevel@tonic-gate switch (error) { 50027c478bd9Sstevel@tonic-gate case EINTR: 50037c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 50047c478bd9Sstevel@tonic-gate case EAGAIN: /* process may be forking */ 50057c478bd9Sstevel@tonic-gate /* 50067c478bd9Sstevel@tonic-gate * Back off for a bit 50077c478bd9Sstevel@tonic-gate */ 50087c478bd9Sstevel@tonic-gate break; 50097c478bd9Sstevel@tonic-gate case EBADF: 50107c478bd9Sstevel@tonic-gate zone_release_door(&door); 50117c478bd9Sstevel@tonic-gate if (zone_lookup_door(zone_name, &door) != 0) { 50127c478bd9Sstevel@tonic-gate /* 50137c478bd9Sstevel@tonic-gate * zoneadmd may be dead, but it may come back to 50147c478bd9Sstevel@tonic-gate * life later. 50157c478bd9Sstevel@tonic-gate */ 50167c478bd9Sstevel@tonic-gate break; 50177c478bd9Sstevel@tonic-gate } 50187c478bd9Sstevel@tonic-gate break; 50197c478bd9Sstevel@tonic-gate default: 50207c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, 50217c478bd9Sstevel@tonic-gate "zone_ki_call_zoneadmd: door_ki_upcall error %d\n", 50227c478bd9Sstevel@tonic-gate error); 50237c478bd9Sstevel@tonic-gate goto out; 50247c478bd9Sstevel@tonic-gate } 50257c478bd9Sstevel@tonic-gate next: 50267c478bd9Sstevel@tonic-gate /* 50277c478bd9Sstevel@tonic-gate * If this isn't the same zone_t that we originally had in mind, 50287c478bd9Sstevel@tonic-gate * then this is the same as if two kadmin requests come in at 50297c478bd9Sstevel@tonic-gate * the same time: the first one wins. This means we lose, so we 50307c478bd9Sstevel@tonic-gate * bail. 50317c478bd9Sstevel@tonic-gate */ 50327c478bd9Sstevel@tonic-gate if ((zone = zone_find_by_id(zoneid)) == NULL) { 50337c478bd9Sstevel@tonic-gate /* 50347c478bd9Sstevel@tonic-gate * Problem is solved. 50357c478bd9Sstevel@tonic-gate */ 50367c478bd9Sstevel@tonic-gate break; 50377c478bd9Sstevel@tonic-gate } 50387c478bd9Sstevel@tonic-gate if (zone->zone_uniqid != uniqid) { 50397c478bd9Sstevel@tonic-gate /* 50407c478bd9Sstevel@tonic-gate * zoneid recycled 50417c478bd9Sstevel@tonic-gate */ 50427c478bd9Sstevel@tonic-gate zone_rele(zone); 50437c478bd9Sstevel@tonic-gate break; 50447c478bd9Sstevel@tonic-gate } 50457c478bd9Sstevel@tonic-gate /* 50467c478bd9Sstevel@tonic-gate * We could zone_status_timedwait(), but there doesn't seem to 50477c478bd9Sstevel@tonic-gate * be much point in doing that (plus, it would mean that 50487c478bd9Sstevel@tonic-gate * zone_free() isn't called until this thread exits). 50497c478bd9Sstevel@tonic-gate */ 50507c478bd9Sstevel@tonic-gate zone_rele(zone); 50517c478bd9Sstevel@tonic-gate delay(hz); 50527c478bd9Sstevel@tonic-gate darg = save_arg; 50537c478bd9Sstevel@tonic-gate } 50547c478bd9Sstevel@tonic-gate out: 50557c478bd9Sstevel@tonic-gate if (door != NULL) { 50567c478bd9Sstevel@tonic-gate zone_release_door(&door); 50577c478bd9Sstevel@tonic-gate } 50587c478bd9Sstevel@tonic-gate kmem_free(zone_name, zone_namelen); 50597c478bd9Sstevel@tonic-gate thread_exit(); 50607c478bd9Sstevel@tonic-gate } 50617c478bd9Sstevel@tonic-gate 50627c478bd9Sstevel@tonic-gate /* 50633f2f09c1Sdp * Entry point for uadmin() to tell the zone to go away or reboot. Analog to 50643f2f09c1Sdp * kadmin(). The caller is a process in the zone. 50657c478bd9Sstevel@tonic-gate * 50667c478bd9Sstevel@tonic-gate * In order to shutdown the zone, we will hand off control to zoneadmd 50677c478bd9Sstevel@tonic-gate * (running in the global zone) via a door. We do a half-hearted job at 50687c478bd9Sstevel@tonic-gate * killing all processes in the zone, create a kernel thread to contact 50697c478bd9Sstevel@tonic-gate * zoneadmd, and make note of the "uniqid" of the zone. The uniqid is 50707c478bd9Sstevel@tonic-gate * a form of generation number used to let zoneadmd (as well as 50717c478bd9Sstevel@tonic-gate * zone_destroy()) know exactly which zone they're re talking about. 50727c478bd9Sstevel@tonic-gate */ 50737c478bd9Sstevel@tonic-gate int 50743f2f09c1Sdp zone_kadmin(int cmd, int fcn, const char *mdep, cred_t *credp) 50757c478bd9Sstevel@tonic-gate { 50767c478bd9Sstevel@tonic-gate struct zarg *zargp; 50777c478bd9Sstevel@tonic-gate zone_cmd_t zcmd; 50787c478bd9Sstevel@tonic-gate zone_t *zone; 50797c478bd9Sstevel@tonic-gate 50807c478bd9Sstevel@tonic-gate zone = curproc->p_zone; 50817c478bd9Sstevel@tonic-gate ASSERT(getzoneid() != GLOBAL_ZONEID); 50827c478bd9Sstevel@tonic-gate 50837c478bd9Sstevel@tonic-gate switch (cmd) { 50847c478bd9Sstevel@tonic-gate case A_SHUTDOWN: 50857c478bd9Sstevel@tonic-gate switch (fcn) { 50867c478bd9Sstevel@tonic-gate case AD_HALT: 50877c478bd9Sstevel@tonic-gate case AD_POWEROFF: 50887c478bd9Sstevel@tonic-gate zcmd = Z_HALT; 50897c478bd9Sstevel@tonic-gate break; 50907c478bd9Sstevel@tonic-gate case AD_BOOT: 50917c478bd9Sstevel@tonic-gate zcmd = Z_REBOOT; 50927c478bd9Sstevel@tonic-gate break; 50937c478bd9Sstevel@tonic-gate case AD_IBOOT: 50947c478bd9Sstevel@tonic-gate case AD_SBOOT: 50957c478bd9Sstevel@tonic-gate case AD_SIBOOT: 50967c478bd9Sstevel@tonic-gate case AD_NOSYNC: 50977c478bd9Sstevel@tonic-gate return (ENOTSUP); 50987c478bd9Sstevel@tonic-gate default: 50997c478bd9Sstevel@tonic-gate return (EINVAL); 51007c478bd9Sstevel@tonic-gate } 51017c478bd9Sstevel@tonic-gate break; 51027c478bd9Sstevel@tonic-gate case A_REBOOT: 51037c478bd9Sstevel@tonic-gate zcmd = Z_REBOOT; 51047c478bd9Sstevel@tonic-gate break; 51057c478bd9Sstevel@tonic-gate case A_FTRACE: 51067c478bd9Sstevel@tonic-gate case A_REMOUNT: 51077c478bd9Sstevel@tonic-gate case A_FREEZE: 51087c478bd9Sstevel@tonic-gate case A_DUMP: 51097c478bd9Sstevel@tonic-gate return (ENOTSUP); 51107c478bd9Sstevel@tonic-gate default: 51117c478bd9Sstevel@tonic-gate ASSERT(cmd != A_SWAPCTL); /* handled by uadmin() */ 51127c478bd9Sstevel@tonic-gate return (EINVAL); 51137c478bd9Sstevel@tonic-gate } 51147c478bd9Sstevel@tonic-gate 51157c478bd9Sstevel@tonic-gate if (secpolicy_zone_admin(credp, B_FALSE)) 51167c478bd9Sstevel@tonic-gate return (EPERM); 51177c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 51183f2f09c1Sdp 51197c478bd9Sstevel@tonic-gate /* 51207c478bd9Sstevel@tonic-gate * zone_status can't be ZONE_IS_EMPTY or higher since curproc 51217c478bd9Sstevel@tonic-gate * is in the zone. 51227c478bd9Sstevel@tonic-gate */ 51237c478bd9Sstevel@tonic-gate ASSERT(zone_status_get(zone) < ZONE_IS_EMPTY); 51247c478bd9Sstevel@tonic-gate if (zone_status_get(zone) > ZONE_IS_RUNNING) { 51257c478bd9Sstevel@tonic-gate /* 51267c478bd9Sstevel@tonic-gate * This zone is already on its way down. 51277c478bd9Sstevel@tonic-gate */ 51287c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 51297c478bd9Sstevel@tonic-gate return (0); 51307c478bd9Sstevel@tonic-gate } 51317c478bd9Sstevel@tonic-gate /* 51327c478bd9Sstevel@tonic-gate * Prevent future zone_enter()s 51337c478bd9Sstevel@tonic-gate */ 51347c478bd9Sstevel@tonic-gate zone_status_set(zone, ZONE_IS_SHUTTING_DOWN); 51357c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 51367c478bd9Sstevel@tonic-gate 51377c478bd9Sstevel@tonic-gate /* 51387c478bd9Sstevel@tonic-gate * Kill everyone now and call zoneadmd later. 51397c478bd9Sstevel@tonic-gate * zone_ki_call_zoneadmd() will do a more thorough job of this 51407c478bd9Sstevel@tonic-gate * later. 51417c478bd9Sstevel@tonic-gate */ 51427c478bd9Sstevel@tonic-gate killall(zone->zone_id); 51437c478bd9Sstevel@tonic-gate /* 51447c478bd9Sstevel@tonic-gate * Now, create the thread to contact zoneadmd and do the rest of the 51457c478bd9Sstevel@tonic-gate * work. This thread can't be created in our zone otherwise 51467c478bd9Sstevel@tonic-gate * zone_destroy() would deadlock. 51477c478bd9Sstevel@tonic-gate */ 51483f2f09c1Sdp zargp = kmem_zalloc(sizeof (*zargp), KM_SLEEP); 51497c478bd9Sstevel@tonic-gate zargp->arg.cmd = zcmd; 51507c478bd9Sstevel@tonic-gate zargp->arg.uniqid = zone->zone_uniqid; 51513f2f09c1Sdp zargp->zone = zone; 51527c478bd9Sstevel@tonic-gate (void) strcpy(zargp->arg.locale, "C"); 51533f2f09c1Sdp /* mdep was already copied in for us by uadmin */ 51543f2f09c1Sdp if (mdep != NULL) 51553f2f09c1Sdp (void) strlcpy(zargp->arg.bootbuf, mdep, 51563f2f09c1Sdp sizeof (zargp->arg.bootbuf)); 51573f2f09c1Sdp zone_hold(zone); 51587c478bd9Sstevel@tonic-gate 51597c478bd9Sstevel@tonic-gate (void) thread_create(NULL, 0, zone_ki_call_zoneadmd, zargp, 0, &p0, 51607c478bd9Sstevel@tonic-gate TS_RUN, minclsyspri); 51617c478bd9Sstevel@tonic-gate exit(CLD_EXITED, 0); 51627c478bd9Sstevel@tonic-gate 51637c478bd9Sstevel@tonic-gate return (EINVAL); 51647c478bd9Sstevel@tonic-gate } 51657c478bd9Sstevel@tonic-gate 51667c478bd9Sstevel@tonic-gate /* 51677c478bd9Sstevel@tonic-gate * Entry point so kadmin(A_SHUTDOWN, ...) can set the global zone's 51687c478bd9Sstevel@tonic-gate * status to ZONE_IS_SHUTTING_DOWN. 51697c478bd9Sstevel@tonic-gate */ 51707c478bd9Sstevel@tonic-gate void 51717c478bd9Sstevel@tonic-gate zone_shutdown_global(void) 51727c478bd9Sstevel@tonic-gate { 51737c478bd9Sstevel@tonic-gate ASSERT(curproc->p_zone == global_zone); 51747c478bd9Sstevel@tonic-gate 51757c478bd9Sstevel@tonic-gate mutex_enter(&zone_status_lock); 51767c478bd9Sstevel@tonic-gate ASSERT(zone_status_get(global_zone) == ZONE_IS_RUNNING); 51777c478bd9Sstevel@tonic-gate zone_status_set(global_zone, ZONE_IS_SHUTTING_DOWN); 51787c478bd9Sstevel@tonic-gate mutex_exit(&zone_status_lock); 51797c478bd9Sstevel@tonic-gate } 5180fa9e4066Sahrens 5181fa9e4066Sahrens /* 5182fa9e4066Sahrens * Returns true if the named dataset is visible in the current zone. 5183fa9e4066Sahrens * The 'write' parameter is set to 1 if the dataset is also writable. 5184fa9e4066Sahrens */ 5185fa9e4066Sahrens int 5186fa9e4066Sahrens zone_dataset_visible(const char *dataset, int *write) 5187fa9e4066Sahrens { 5188fa9e4066Sahrens zone_dataset_t *zd; 5189fa9e4066Sahrens size_t len; 5190fa9e4066Sahrens zone_t *zone = curproc->p_zone; 5191fa9e4066Sahrens 5192fa9e4066Sahrens if (dataset[0] == '\0') 5193fa9e4066Sahrens return (0); 5194fa9e4066Sahrens 5195fa9e4066Sahrens /* 5196fa9e4066Sahrens * Walk the list once, looking for datasets which match exactly, or 5197fa9e4066Sahrens * specify a dataset underneath an exported dataset. If found, return 5198fa9e4066Sahrens * true and note that it is writable. 5199fa9e4066Sahrens */ 5200fa9e4066Sahrens for (zd = list_head(&zone->zone_datasets); zd != NULL; 5201fa9e4066Sahrens zd = list_next(&zone->zone_datasets, zd)) { 5202fa9e4066Sahrens 5203fa9e4066Sahrens len = strlen(zd->zd_dataset); 5204fa9e4066Sahrens if (strlen(dataset) >= len && 5205fa9e4066Sahrens bcmp(dataset, zd->zd_dataset, len) == 0 && 520695c9592aSmaybee (dataset[len] == '\0' || dataset[len] == '/' || 520795c9592aSmaybee dataset[len] == '@')) { 5208fa9e4066Sahrens if (write) 5209fa9e4066Sahrens *write = 1; 5210fa9e4066Sahrens return (1); 5211fa9e4066Sahrens } 5212fa9e4066Sahrens } 5213fa9e4066Sahrens 5214fa9e4066Sahrens /* 5215fa9e4066Sahrens * Walk the list a second time, searching for datasets which are parents 5216fa9e4066Sahrens * of exported datasets. These should be visible, but read-only. 5217fa9e4066Sahrens * 5218fa9e4066Sahrens * Note that we also have to support forms such as 'pool/dataset/', with 5219fa9e4066Sahrens * a trailing slash. 5220fa9e4066Sahrens */ 5221fa9e4066Sahrens for (zd = list_head(&zone->zone_datasets); zd != NULL; 5222fa9e4066Sahrens zd = list_next(&zone->zone_datasets, zd)) { 5223fa9e4066Sahrens 5224fa9e4066Sahrens len = strlen(dataset); 5225fa9e4066Sahrens if (dataset[len - 1] == '/') 5226fa9e4066Sahrens len--; /* Ignore trailing slash */ 5227fa9e4066Sahrens if (len < strlen(zd->zd_dataset) && 5228fa9e4066Sahrens bcmp(dataset, zd->zd_dataset, len) == 0 && 5229fa9e4066Sahrens zd->zd_dataset[len] == '/') { 5230fa9e4066Sahrens if (write) 5231fa9e4066Sahrens *write = 0; 5232fa9e4066Sahrens return (1); 5233fa9e4066Sahrens } 5234fa9e4066Sahrens } 5235fa9e4066Sahrens 5236fa9e4066Sahrens return (0); 5237fa9e4066Sahrens } 523845916cd2Sjpk 523945916cd2Sjpk /* 524045916cd2Sjpk * zone_find_by_any_path() - 524145916cd2Sjpk * 524245916cd2Sjpk * kernel-private routine similar to zone_find_by_path(), but which 524345916cd2Sjpk * effectively compares against zone paths rather than zonerootpath 524445916cd2Sjpk * (i.e., the last component of zonerootpaths, which should be "root/", 524545916cd2Sjpk * are not compared.) This is done in order to accurately identify all 524645916cd2Sjpk * paths, whether zone-visible or not, including those which are parallel 524745916cd2Sjpk * to /root/, such as /dev/, /home/, etc... 524845916cd2Sjpk * 524945916cd2Sjpk * If the specified path does not fall under any zone path then global 525045916cd2Sjpk * zone is returned. 525145916cd2Sjpk * 525245916cd2Sjpk * The treat_abs parameter indicates whether the path should be treated as 525345916cd2Sjpk * an absolute path although it does not begin with "/". (This supports 525445916cd2Sjpk * nfs mount syntax such as host:any/path.) 525545916cd2Sjpk * 525645916cd2Sjpk * The caller is responsible for zone_rele of the returned zone. 525745916cd2Sjpk */ 525845916cd2Sjpk zone_t * 525945916cd2Sjpk zone_find_by_any_path(const char *path, boolean_t treat_abs) 526045916cd2Sjpk { 526145916cd2Sjpk zone_t *zone; 526245916cd2Sjpk int path_offset = 0; 526345916cd2Sjpk 526445916cd2Sjpk if (path == NULL) { 526545916cd2Sjpk zone_hold(global_zone); 526645916cd2Sjpk return (global_zone); 526745916cd2Sjpk } 526845916cd2Sjpk 526945916cd2Sjpk if (*path != '/') { 527045916cd2Sjpk ASSERT(treat_abs); 527145916cd2Sjpk path_offset = 1; 527245916cd2Sjpk } 527345916cd2Sjpk 527445916cd2Sjpk mutex_enter(&zonehash_lock); 527545916cd2Sjpk for (zone = list_head(&zone_active); zone != NULL; 527645916cd2Sjpk zone = list_next(&zone_active, zone)) { 527745916cd2Sjpk char *c; 527845916cd2Sjpk size_t pathlen; 52790f95d722Smp char *rootpath_start; 528045916cd2Sjpk 528145916cd2Sjpk if (zone == global_zone) /* skip global zone */ 528245916cd2Sjpk continue; 528345916cd2Sjpk 528445916cd2Sjpk /* scan backwards to find start of last component */ 528545916cd2Sjpk c = zone->zone_rootpath + zone->zone_rootpathlen - 2; 528645916cd2Sjpk do { 528745916cd2Sjpk c--; 528845916cd2Sjpk } while (*c != '/'); 528945916cd2Sjpk 52900f95d722Smp pathlen = c - zone->zone_rootpath + 1 - path_offset; 52910f95d722Smp rootpath_start = (zone->zone_rootpath + path_offset); 52920f95d722Smp if (strncmp(path, rootpath_start, pathlen) == 0) 529345916cd2Sjpk break; 529445916cd2Sjpk } 529545916cd2Sjpk if (zone == NULL) 529645916cd2Sjpk zone = global_zone; 529745916cd2Sjpk zone_hold(zone); 529845916cd2Sjpk mutex_exit(&zonehash_lock); 529945916cd2Sjpk return (zone); 530045916cd2Sjpk } 5301