19313Ssos/* 29313Ssos * CDDL HEADER START 39313Ssos * 49313Ssos * The contents of this file are subject to the terms of the 59313Ssos * Common Development and Distribution License (the "License"). 69313Ssos * You may not use this file except in compliance with the License. 79313Ssos * 89313Ssos * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 99313Ssos * or http://www.opensolaris.org/os/licensing. 109313Ssos * See the License for the specific language governing permissions 119313Ssos * and limitations under the License. 129313Ssos * 139313Ssos * When distributing Covered Code, include this CDDL HEADER in each 149313Ssos * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 159313Ssos * If applicable, add the following below this CDDL HEADER, with the 169313Ssos * fields enclosed by brackets "[]" replaced with your own identifying 179313Ssos * information: Portions Copyright [yyyy] [name of copyright owner] 189313Ssos * 199313Ssos * CDDL HEADER END 209313Ssos */ 219313Ssos/* 229313Ssos * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 239313Ssos * Copyright (c) 2012, 2014 by Delphix. All rights reserved. 249313Ssos * Copyright (c) 2012, Joyent, Inc. All rights reserved. 259313Ssos */ 269313Ssos/* 279313Ssos * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2850477Speter */ 299313Ssos 309313Ssos#ifndef _SYS_ZFS_CONTEXT_H 3131784Seivind#define _SYS_ZFS_CONTEXT_H 3231784Seivind 339313Ssos#ifdef __cplusplus 349313Ssosextern "C" { 3512458Sbde#endif 369313Ssos 379313Ssos#define _SYS_MUTEX_H 389313Ssos#define _SYS_RWLOCK_H 3931561Sbde#define _SYS_CONDVAR_H 409313Ssos#define _SYS_SYSTM_H 419313Ssos#define _SYS_T_LOCK_H 429313Ssos#define _SYS_VNODE_H 4372538Sjlemon#define _SYS_VFS_H 449313Ssos#define _SYS_SUNDDI_H 4514331Speter#define _SYS_CALLB_H 4614331Speter#define _SYS_SCHED_H_ 4712458Sbde 4872538Sjlemon#include <solaris.h> 4972538Sjlemon#include <stdio.h> 5072538Sjlemon#include <stdlib.h> 5172538Sjlemon#include <stddef.h> 5264905Smarcel#include <stdarg.h> 5368583Smarcel#include <fcntl.h> 5464905Smarcel#include <unistd.h> 559313Ssos#include <errno.h> 5668201Sobrien#include <string.h> 579313Ssos#include <strings.h> 5830994Sphk#include <thread.h> 599313Ssos#include <assert.h> 6012858Speter#include <limits.h> 619313Ssos#include <dirent.h> 629313Ssos#include <time.h> 639313Ssos#include <math.h> 6412858Speter#include <umem.h> 6514331Speter#include <inttypes.h> 669313Ssos#include <fsshare.h> 6714331Speter#include <pthread.h> 6814331Speter#include <sched.h> 6914331Speter#include <sys/debug.h> 709313Ssos#include <sys/note.h> 719313Ssos#include <sys/types.h> 729313Ssos#include <sys/cred.h> 739313Ssos#include <sys/atomic.h> 749313Ssos#include <sys/sysmacros.h> 759313Ssos#include <sys/bitmap.h> 769313Ssos#include <sys/resource.h> 7730994Sphk#include <sys/byteorder.h> 789313Ssos#include <sys/list.h> 7968201Sobrien#include <sys/time.h> 809313Ssos#include <sys/uio.h> 819313Ssos#include <sys/mntent.h> 8230994Sphk#include <sys/mnttab.h> 839313Ssos#include <sys/zfs_debug.h> 8412858Speter#include <sys/sdt.h> 859313Ssos#include <sys/kstat.h> 869313Ssos#include <sys/u8_textprep.h> 879313Ssos#include <sys/kernel.h> 8812858Speter#include <sys/disk.h> 899313Ssos#include <sys/sysevent.h> 9014331Speter#include <sys/sysevent/eventdefs.h> 9114331Speter#include <sys/sysevent/dev.h> 9214331Speter#include <machine/atomic.h> 939313Ssos#include <sys/debug.h> 9414331Speter#ifdef illumos 9514331Speter#include "zfs.h" 9614331Speter#endif 9714331Speter 9814331Speter#define ZFS_EXPORTS_PATH "/etc/zfs/exports" 999313Ssos 1009313Ssos/* 1019313Ssos * Debugging 1029313Ssos */ 1039313Ssos 1049313Ssos/* 1059313Ssos * Note that we are not using the debugging levels. 1069313Ssos */ 1079313Ssos 1089313Ssos#define CE_CONT 0 /* continuation */ 1099313Ssos#define CE_NOTE 1 /* notice */ 1109313Ssos#define CE_WARN 2 /* warning */ 1119313Ssos#define CE_PANIC 3 /* panic */ 1129313Ssos#define CE_IGNORE 4 /* print nothing */ 1139313Ssos 1149313Ssos/* 1159313Ssos * ZFS debugging 1169313Ssos */ 1179313Ssos 1189313Ssos#define ZFS_LOG(...) do { } while (0) 1199313Ssos 1209313Ssostypedef u_longlong_t rlim64_t; 1219313Ssos#define RLIM64_INFINITY ((rlim64_t)-3) 1229313Ssos 1239313Ssos#ifdef ZFS_DEBUG 1249313Ssosextern void dprintf_setup(int *argc, char **argv); 1259313Ssos#endif /* ZFS_DEBUG */ 1269313Ssos 1279313Ssosextern void cmn_err(int, const char *, ...); 1289313Ssosextern void vcmn_err(int, const char *, __va_list); 1299313Ssosextern void panic(const char *, ...); 1309313Ssosextern void vpanic(const char *, __va_list); 13130994Sphk 13270061Sjhb#define fm_panic panic 1339313Ssos 1349313Ssosextern int aok; 1359313Ssos 13630994Sphk/* 1379313Ssos * DTrace SDT probes have different signatures in userland than they do in 13870061Sjhb * kernel. If they're being used in kernel code, re-define them out of 1399313Ssos * existence for their counterparts in libzpool. 14051418Sgreen */ 14170061Sjhb 14270061Sjhb#ifdef DTRACE_PROBE 14314331Speter#undef DTRACE_PROBE 14414331Speter#endif /* DTRACE_PROBE */ 14514331Speter#ifdef illumos 14614331Speter#define DTRACE_PROBE(a) \ 1479313Ssos ZFS_PROBE0(#a) 1489313Ssos#endif 1499313Ssos 1509313Ssos#ifdef DTRACE_PROBE1 1519313Ssos#undef DTRACE_PROBE1 1529313Ssos#endif /* DTRACE_PROBE1 */ 1539313Ssos#ifdef illumos 1549313Ssos#define DTRACE_PROBE1(a, b, c) \ 1559313Ssos ZFS_PROBE1(#a, (unsigned long)c) 1569313Ssos#endif 1579313Ssos 1589313Ssos#ifdef DTRACE_PROBE2 1599313Ssos#undef DTRACE_PROBE2 1609313Ssos#endif /* DTRACE_PROBE2 */ 1619313Ssos#ifdef illumos 1629313Ssos#define DTRACE_PROBE2(a, b, c, d, e) \ 1639313Ssos ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e) 1649313Ssos#endif 1659313Ssos 1669313Ssos#ifdef DTRACE_PROBE3 1679313Ssos#undef DTRACE_PROBE3 1689313Ssos#endif /* DTRACE_PROBE3 */ 1699313Ssos#ifdef illumos 1709313Ssos#define DTRACE_PROBE3(a, b, c, d, e, f, g) \ 17149676Smarcel ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g) 17249676Smarcel#endif 17349676Smarcel 1749313Ssos#ifdef DTRACE_PROBE4 1759313Ssos#undef DTRACE_PROBE4 1769313Ssos#endif /* DTRACE_PROBE4 */ 1779313Ssos#ifdef illumos 1789313Ssos#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \ 1799313Ssos ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \ 1809313Ssos (unsigned long)i) 1819313Ssos#endif 1829313Ssos 1839313Ssos#ifdef illumos 1849313Ssos/* 1859313Ssos * We use the comma operator so that this macro can be used without much 1869313Ssos * additional code. For example, "return (EINVAL);" becomes 1879313Ssos * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated 1889313Ssos * twice, so it should not have side effects (e.g. something like: 1899313Ssos * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice). 1909313Ssos */ 1919313Ssos#define SET_ERROR(err) (ZFS_SET_ERROR(err), err) 1929313Ssos#else /* !illumos */ 1939313Ssos 1949313Ssos#define DTRACE_PROBE(a) ((void)0) 1959313Ssos#define DTRACE_PROBE1(a, b, c) ((void)0) 1969313Ssos#define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 1979313Ssos#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) 1989313Ssos#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) 1999313Ssos 2009313Ssos#define SET_ERROR(err) (err) 2019313Ssos#endif /* !illumos */ 20230994Sphk 2039313Ssos/* 2049313Ssos * Threads 20512858Speter */ 2069313Ssos#define curthread ((void *)(uintptr_t)thr_self()) 2079313Ssos 20868662Smarcel#define kpreempt(x) sched_yield() 20968662Smarcel 2109313Ssostypedef struct kthread kthread_t; 21114331Speter 21268662Smarcel#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 21368662Smarcel zk_thread_create(func, arg) 21414331Speter#define thread_exit() thr_exit(NULL) 2159313Ssos#define thread_join(t) panic("libzpool cannot join threads") 21614331Speter 21714331Speter#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) 21814331Speter 2199313Ssos/* in libzpool, p0 exists only to have its address taken */ 22068662Smarcelstruct proc { 22168662Smarcel uintptr_t this_is_never_used_dont_dereference_it; 2229313Ssos}; 2239313Ssos 2249313Ssosextern struct proc p0; 2259313Ssos#define curproc (&p0) 2269313Ssos 2279313Ssos#define PS_NONE -1 22849845Smarcel 22930994Sphkextern kthread_t *zk_thread_create(void (*func)(), void *arg); 2309313Ssos 2319313Ssos#define issig(why) (FALSE) 2329313Ssos#define ISSIG(thr, why) (FALSE) 23330994Sphk 2349313Ssos/* 2359313Ssos * Mutexes 2369313Ssos */ 23749845Smarceltypedef struct kmutex { 23830994Sphk void *m_owner; 2399313Ssos boolean_t initialized; 2409313Ssos mutex_t m_lock; 2419313Ssos} kmutex_t; 24230994Sphk 24330994Sphk#define MUTEX_DEFAULT USYNC_THREAD 24430994Sphk#undef MUTEX_HELD 24530994Sphk#undef MUTEX_NOT_HELD 24630994Sphk#define MUTEX_HELD(m) ((m)->m_owner == curthread) 24730994Sphk#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m)) 24830994Sphk#define _mutex_held(m) pthread_mutex_isowned_np(m) 24930994Sphk 25030994Sphk/* 25139978Sjfieber * Argh -- we have to get cheesy here because the kernel and userland 2529313Ssos * have different signatures for the same routine. 2539313Ssos */ 2549313Ssos//extern int _mutex_init(mutex_t *mp, int type, void *arg); 25549845Smarcel//extern int _mutex_destroy(mutex_t *mp); 2569313Ssos//extern int _mutex_owned(mutex_t *mp); 2579313Ssos 2589313Ssos#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 25939978Sjfieber#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 2609313Ssos#define mutex_owned(mp) zmutex_owned((kmutex_t *)(mp)) 26130994Sphk 26249676Smarcelextern void zmutex_init(kmutex_t *mp); 2639313Ssosextern void zmutex_destroy(kmutex_t *mp); 2649313Ssosextern int zmutex_owned(kmutex_t *mp); 2659313Ssosextern void mutex_enter(kmutex_t *mp); 2669313Ssosextern void mutex_exit(kmutex_t *mp); 2679313Ssosextern int mutex_tryenter(kmutex_t *mp); 2689313Ssosextern void *mutex_owner(kmutex_t *mp); 26968201Sobrien 27046571Speter/* 27146571Speter * RW locks 2729313Ssos */ 2739313Ssostypedef struct krwlock { 2749313Ssos int rw_count; 2759313Ssos void *rw_owner; 2769313Ssos boolean_t initialized; 2779313Ssos rwlock_t rw_lock; 2789313Ssos} krwlock_t; 2799313Ssos 2809313Ssostypedef int krw_t; 2819313Ssos 2829313Ssos#define RW_READER 0 28368201Sobrien#define RW_WRITER 1 28430994Sphk#define RW_DEFAULT USYNC_THREAD 2859313Ssos 2869313Ssos#undef RW_READ_HELD 2879313Ssos#define RW_READ_HELD(x) ((x)->rw_owner == NULL && (x)->rw_count > 0) 2889313Ssos 2899313Ssos#undef RW_WRITE_HELD 2909313Ssos#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread) 2919313Ssos#define RW_LOCK_HELD(x) rw_lock_held(x) 29268201Sobrien 29330994Sphk#undef RW_LOCK_HELD 2949313Ssos#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x)) 29563233Smarcel 29663233Smarcelextern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 29763233Smarcelextern void rw_destroy(krwlock_t *rwlp); 29863233Smarcelextern void rw_enter(krwlock_t *rwlp, krw_t rw); 2999313Ssosextern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 30068662Smarcelextern int rw_tryupgrade(krwlock_t *rwlp); 30168662Smarcelextern void rw_exit(krwlock_t *rwlp); 30268662Smarcelextern int rw_lock_held(krwlock_t *rwlp); 30368662Smarcel#define rw_downgrade(rwlp) do { } while (0) 30468662Smarcel 30568662Smarcelextern uid_t crgetuid(cred_t *cr); 30668662Smarcelextern uid_t crgetruid(cred_t *cr); 30768662Smarcelextern gid_t crgetgid(cred_t *cr); 30868662Smarcelextern int crgetngroups(cred_t *cr); 30968662Smarcelextern gid_t *crgetgroups(cred_t *cr); 31068662Smarcel 31168662Smarcel/* 31268662Smarcel * Condition variables 31363233Smarcel */ 31463233Smarceltypedef cond_t kcondvar_t; 3159313Ssos 3169313Ssos#define CV_DEFAULT USYNC_THREAD 3179313Ssos 3189313Ssosextern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 3199313Ssosextern void cv_destroy(kcondvar_t *cv); 32030994Sphkextern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 3219313Ssosextern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 3229313Ssosextern clock_t cv_timedwait_hires(kcondvar_t *cvp, kmutex_t *mp, hrtime_t tim, 32312858Speter hrtime_t res, int flag); 32412858Speterextern void cv_signal(kcondvar_t *cv); 3259313Ssosextern void cv_broadcast(kcondvar_t *cv); 32612858Speter 3279313Ssos/* 32812858Speter * Thread-specific data 3299313Ssos */ 3309313Ssos#define tsd_get(k) pthread_getspecific(k) 3319313Ssos#define tsd_set(k, v) pthread_setspecific(k, v) 33237950Sbde#define tsd_create(kp, d) pthread_key_create(kp, d) 33337950Sbde#define tsd_destroy(kp) /* nothing */ 3349313Ssos 33512858Speter/* 33612858Speter * Kernel memory 3379313Ssos */ 33830994Sphk#define KM_SLEEP UMEM_NOFAIL 3399313Ssos#define KM_PUSHPAGE KM_SLEEP 3409313Ssos#define KM_NOSLEEP UMEM_DEFAULT 3419313Ssos#define KM_NODEBUG 0 34268201Sobrien#define KMC_NODEBUG UMC_NODEBUG 34314331Speter#define KMC_NOTOUCH 0 /* not needed for userland caches */ 34430994Sphk#define kmem_alloc(_s, _f) umem_alloc(_s, _f) 34514331Speter#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 34614331Speter#define kmem_free(_b, _s) umem_free(_b, _s) 34714331Speter#define kmem_size() (physmem * PAGESIZE) 34814331Speter#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 34914331Speter umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 35014331Speter#define kmem_cache_destroy(_c) umem_cache_destroy(_c) 35114331Speter#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 35214331Speter#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 35314331Speter#define kmem_debugging() 0 35414331Speter#define kmem_cache_reap_now(_c) /* nothing */ 35514331Speter#define kmem_cache_set_move(_c, _cb) /* nothing */ 35614331Speter#define POINTER_INVALIDATE(_pp) /* nothing */ 35714331Speter#define POINTER_IS_VALID(_p) 0 35814331Speter 35914331Spetertypedef umem_cache_t kmem_cache_t; 36030994Sphk 36114331Spetertypedef enum kmem_cbrc { 36214331Speter KMEM_CBRC_YES, 36330994Sphk KMEM_CBRC_NO, 36414331Speter KMEM_CBRC_LATER, 36514331Speter KMEM_CBRC_DONT_NEED, 36630994Sphk KMEM_CBRC_DONT_KNOW 36714331Speter} kmem_cbrc_t; 36814331Speter 36968201Sobrien/* 37014331Speter * Task queues 37114331Speter */ 3729313Ssostypedef struct taskq taskq_t; 3739313Ssostypedef uintptr_t taskqid_t; 3749313Ssostypedef void (task_func_t)(void *); 3759313Ssos 3769313Ssostypedef struct taskq_ent { 3779313Ssos struct taskq_ent *tqent_next; 3789313Ssos struct taskq_ent *tqent_prev; 3799313Ssos task_func_t *tqent_func; 3809313Ssos void *tqent_arg; 3819313Ssos uintptr_t tqent_flags; 38268201Sobrien} taskq_ent_t; 3839313Ssos 38430994Sphk#define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */ 3859313Ssos 38614331Speter#define TASKQ_PREPOPULATE 0x0001 38714331Speter#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 38814331Speter#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 38914331Speter#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ 39014331Speter#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ 39130994Sphk 39214331Speter#define TQ_SLEEP KM_SLEEP /* Can block for memory */ 39368201Sobrien#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 39414331Speter#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 39514331Speter#define TQ_FRONT 0x08 /* Queue in front */ 39630994Sphk 39714331Speter 3989313Ssosextern taskq_t *system_taskq; 3999313Ssos 4009313Ssosextern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 4019313Ssos#define taskq_create_proc(a, b, c, d, e, p, f) \ 4029313Ssos (taskq_create(a, b, c, d, e, f)) 4039313Ssos#define taskq_create_sysdc(a, b, d, e, p, dc, f) \ 4049313Ssos (taskq_create(a, b, maxclsyspri, d, e, f)) 4059313Ssosextern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 4069313Ssosextern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t, 4079313Ssos taskq_ent_t *); 4089313Ssosextern void taskq_destroy(taskq_t *); 4099313Ssosextern void taskq_wait(taskq_t *); 41024654Sdfrextern int taskq_member(taskq_t *, void *); 41124654Sdfrextern void system_taskq_init(void); 41224654Sdfrextern void system_taskq_fini(void); 4139313Ssos 4149313Ssos#define taskq_dispatch_safe(tq, func, arg, flags, task) \ 41514331Speter taskq_dispatch((tq), (func), (arg), (flags)) 4169313Ssos 4179313Ssos#define XVA_MAPSIZE 3 41810355Sswallace#define XVA_MAGIC 0x78766174 4199313Ssos 42014331Speter/* 4219313Ssos * vnodes 4229313Ssos */ 4239313Ssostypedef struct vnode { 4249313Ssos uint64_t v_size; 4259313Ssos int v_fd; 4269313Ssos char *v_path; 4279313Ssos} vnode_t; 4289313Ssos 4299313Ssos#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ 43071699Sjhb 4319313Ssostypedef struct xoptattr { 43211418Sswallace timestruc_t xoa_createtime; /* Create time of file */ 4339313Ssos uint8_t xoa_archive; 4349313Ssos uint8_t xoa_system; 4359313Ssos uint8_t xoa_readonly; 4369313Ssos uint8_t xoa_hidden; 4379313Ssos uint8_t xoa_nounlink; 4389313Ssos uint8_t xoa_immutable; 4399313Ssos uint8_t xoa_appendonly; 4409313Ssos uint8_t xoa_nodump; 4419313Ssos uint8_t xoa_settable; 44210355Sswallace uint8_t xoa_opaque; 44324672Sdfr uint8_t xoa_av_quarantined; 44424654Sdfr uint8_t xoa_av_modified; 44511418Sswallace uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; 4469313Ssos uint8_t xoa_reparse; 44722521Sdyson uint8_t xoa_offline; 4489313Ssos uint8_t xoa_sparse; 4499313Ssos} xoptattr_t; 4509313Ssos 4519313Ssostypedef struct vattr { 4529313Ssos uint_t va_mask; /* bit-mask of attributes */ 4539313Ssos u_offset_t va_size; /* file size in bytes */ 4549313Ssos} vattr_t; 4559313Ssos 4569313Ssos 45724654Sdfrtypedef struct xvattr { 4589313Ssos vattr_t xva_vattr; /* Embedded vattr structure */ 45924654Sdfr uint32_t xva_magic; /* Magic Number */ 46024654Sdfr uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ 46124654Sdfr uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ 46224654Sdfr uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ 46324654Sdfr uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ 46424654Sdfr xoptattr_t xva_xoptattrs; /* Optional attributes */ 46510355Sswallace} xvattr_t; 4669313Ssos 46714331Spetertypedef struct vsecattr { 4689313Ssos uint_t vsa_mask; /* See below */ 4699313Ssos int vsa_aclcnt; /* ACL entry count */ 4709313Ssos void *vsa_aclentp; /* pointer to ACL entries */ 4719313Ssos int vsa_dfaclcnt; /* default ACL entry count */ 47224654Sdfr void *vsa_dfaclentp; /* pointer to default ACL entries */ 4739313Ssos size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ 47414331Speter} vsecattr_t; 4759313Ssos 47624654Sdfr#define AT_TYPE 0x00001 47724654Sdfr#define AT_MODE 0x00002 47824654Sdfr#define AT_UID 0x00004 47924654Sdfr#define AT_GID 0x00008 48024654Sdfr#define AT_FSID 0x00010 48124654Sdfr#define AT_NODEID 0x00020 48224654Sdfr#define AT_NLINK 0x00040 48324654Sdfr#define AT_SIZE 0x00080 48424654Sdfr#define AT_ATIME 0x00100 48524654Sdfr#define AT_MTIME 0x00200 48624654Sdfr#define AT_CTIME 0x00400 48724654Sdfr#define AT_RDEV 0x00800 48824654Sdfr#define AT_BLKSIZE 0x01000 48924654Sdfr#define AT_NBLOCKS 0x02000 49024654Sdfr#define AT_SEQ 0x08000 49124654Sdfr#define AT_XVATTR 0x10000 49224654Sdfr 49324654Sdfr#define CRCREAT 0 49424654Sdfr 4959313Ssosextern int fop_getattr(vnode_t *vp, vattr_t *vap); 49624654Sdfr 49724654Sdfr#define VOP_CLOSE(vp, f, c, o, cr, ct) 0 49810355Sswallace#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 49910355Sswallace#define VOP_GETATTR(vp, vap, cr) fop_getattr((vp), (vap)); 50010355Sswallace 50110355Sswallace#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) 50210355Sswallace 50310355Sswallace#define VN_RELE(vp) vn_close(vp, 0, NULL, NULL) 50410355Sswallace#define VN_RELE_ASYNC(vp, taskq) vn_close(vp, 0, NULL, NULL) 50510355Sswallace 5069313Ssos#define vn_lock(vp, type) 5079313Ssos#define VOP_UNLOCK(vp, type) 50824654Sdfr#ifdef VFS_LOCK_GIANT 50924654Sdfr#undef VFS_LOCK_GIANT 51024654Sdfr#endif 51124654Sdfr#define VFS_LOCK_GIANT(mp) 0 51224654Sdfr#ifdef VFS_UNLOCK_GIANT 51310355Sswallace#undef VFS_UNLOCK_GIANT 5149313Ssos#endif 5159313Ssos#define VFS_UNLOCK_GIANT(vfslocked) 5169313Ssos 5179313Ssosextern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 5189313Ssos int x2, int x3); 5199313Ssosextern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 5209313Ssos int x2, int x3, vnode_t *vp, int fd); 5219313Ssosextern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 52214465Speter offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 52314465Speterextern void vn_close(vnode_t *vp, int openflag, cred_t *cr, kthread_t *td); 52414465Speter 52514465Speter#define vn_remove(path, x1, x2) remove(path) 52614465Speter#define vn_rename(from, to, seg) rename((from), (to)) 52714465Speter#define vn_is_readonly(vp) B_FALSE 52814465Speter 52968347Smarcelextern vnode_t *rootdir; 53068347Smarcel 53168347Smarcel#include <sys/file.h> /* for FREAD, FWRITE, etc */ 53268347Smarcel#define FTRUNC O_TRUNC 53314465Speter 53414465Speter/* 5359313Ssos * Random stuff 53610355Sswallace */ 5379313Ssos#define ddi_get_lbolt() (gethrtime() >> 23) 53814331Speter#define ddi_get_lbolt64() (gethrtime() >> 23) 5399313Ssos#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 54024654Sdfr 54124654Sdfrextern void delay(clock_t ticks); 54224654Sdfr 54324654Sdfr#define SEC_TO_TICK(sec) ((sec) * hz) 54424654Sdfr#define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz)) 5459313Ssos 5469313Ssos#define gethrestime_sec() time(NULL) 5479313Ssos#define gethrestime(t) \ 5489313Ssos do {\ 5499313Ssos (t)->tv_sec = gethrestime_sec();\ 5509313Ssos (t)->tv_nsec = 0;\ 5519313Ssos } while (0); 5529313Ssos 5539313Ssos#define max_ncpus 64 5549313Ssos 5559313Ssos#define minclsyspri 60 5569313Ssos#define maxclsyspri 99 5579313Ssos 55810355Sswallace#define CPU_SEQID (thr_self() & (max_ncpus - 1)) 5599313Ssos 56030994Sphk#define kcred NULL 5619313Ssos#define CRED() NULL 56224654Sdfr 56324654Sdfr#ifndef ptob 56422543Smpp#define ptob(x) ((x) * PAGESIZE) 5659313Ssos#endif 5669313Ssos 5679313Ssosextern uint64_t physmem; 56814331Speter 56914331Speterextern int highbit64(uint64_t i); 57014331Speterextern int random_get_bytes(uint8_t *ptr, size_t len); 57114331Speterextern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 57214331Speter 57314331Speterextern void kernel_init(int); 57430994Sphkextern void kernel_fini(void); 57514331Speter 57614331Speterstruct spa; 57714331Speterextern void nicenum(uint64_t num, char *buf); 57814331Speterextern void show_pool_stats(struct spa *); 57914331Speter 58014331Spetertypedef struct callb_cpr { 58114331Speter kmutex_t *cc_lockp; 58214331Speter} callb_cpr_t; 58314331Speter 58414331Speter#define CALLB_CPR_INIT(cp, lockp, func, name) { \ 58514331Speter (cp)->cc_lockp = lockp; \ 58614331Speter} 58714331Speter 58814331Speter#define CALLB_CPR_SAFE_BEGIN(cp) { \ 58930994Sphk ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 59014331Speter} 59114331Speter 59214331Speter#define CALLB_CPR_SAFE_END(cp, lockp) { \ 59330994Sphk ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 59414331Speter} 59514331Speter 59614331Speter#define CALLB_CPR_EXIT(cp) { \ 59714331Speter ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 59814331Speter mutex_exit((cp)->cc_lockp); \ 59914331Speter} 60014331Speter 60114331Speter#define zone_dataset_visible(x, y) (1) 60214331Speter#define INGLOBALZONE(z) (1) 60314331Speter 60414331Speterextern char *kmem_asprintf(const char *fmt, ...); 60514331Speter#define strfree(str) kmem_free((str), strlen(str) + 1) 60614331Speter 60730994Sphk/* 60814331Speter * Hostname information 60914331Speter */ 61014331Speterextern struct utsname utsname; 61130994Sphkextern char hw_serial[]; /* for userland-emulated hostid access */ 61214331Speterextern int ddi_strtoul(const char *str, char **nptr, int base, 61314331Speter unsigned long *result); 61414331Speter 61514331Speterextern int ddi_strtoull(const char *str, char **nptr, int base, 61614331Speter u_longlong_t *result); 61714331Speter 61814331Speter/* ZFS Boot Related stuff. */ 61914331Speter 62014331Speterstruct _buf { 62114331Speter intptr_t _fd; 62214331Speter}; 62314331Speter 62414331Speterstruct bootstat { 62530994Sphk uint64_t st_size; 62614331Speter}; 62714331Speter 62814331Spetertypedef struct ace_object { 62930994Sphk uid_t a_who; 63014331Speter uint32_t a_access_mask; 63114331Speter uint16_t a_flags; 63214331Speter uint16_t a_type; 63314331Speter uint8_t a_obj_type[16]; 63414331Speter uint8_t a_inherit_obj_type[16]; 63514331Speter} ace_object_t; 63614331Speter 63714331Speter 63814331Speter#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 63914331Speter#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 64014331Speter#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 64114331Speter#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 64214331Speter 64314331Speterextern struct _buf *kobj_open_file(char *name); 64430994Sphkextern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 64514331Speter unsigned off); 64614331Speterextern void kobj_close_file(struct _buf *file); 64714331Speterextern int kobj_get_filesize(struct _buf *file, uint64_t *size); 64830994Sphkextern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 64914331Speterextern int zfs_secpolicy_rename_perms(const char *from, const char *to, 65014331Speter cred_t *cr); 65114331Speterextern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 65214331Speterextern zoneid_t getzoneid(void); 65314331Speter/* Random compatibility stuff. */ 65414331Speter#define lbolt (gethrtime() >> 23) 65514331Speter#define lbolt64 (gethrtime() >> 23) 65614331Speter 65714331Speterextern uint64_t physmem; 65814331Speter 65914331Speter#define gethrestime_sec() time(NULL) 66014331Speter 66114331Speter#define pwrite64(d, p, n, o) pwrite(d, p, n, o) 66214331Speter#define readdir64(d) readdir(d) 66314331Speter#define SIGPENDING(td) (0) 66414331Speter#define root_mount_wait() do { } while (0) 66530994Sphk#define root_mounted() (1) 66614331Speter 66714331Speterstruct file { 66814331Speter void *dummy; 66934941Speter}; 67034941Speter 67134941Speter#define FCREAT O_CREAT 67234941Speter#define FOFFMAX 0x0 67334941Speter 67434941Speter/* SID stuff */ 67534941Spetertypedef struct ksiddomain { 67634941Speter uint_t kd_ref; 67734941Speter uint_t kd_len; 67834941Speter char *kd_name; 67934941Speter} ksiddomain_t; 68034941Speter 68134941Speterksiddomain_t *ksid_lookupdomain(const char *); 68234941Spetervoid ksiddomain_rele(ksiddomain_t *); 68334941Speter 68434941Spetertypedef uint32_t idmap_rid_t; 68534941Speter 68634941Speter#define DDI_SLEEP KM_SLEEP 68734941Speter#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) (0) 68834941Speter 68934941Speter#define SX_SYSINIT(name, lock, desc) 69030994Sphk 69114331Speter#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \ 69214331Speter intptr_t arg2, struct sysctl_req *req 69314331Speter 69414331Speter/* 69514331Speter * This describes the access space for a sysctl request. This is needed 69614331Speter * so that we can use the interface from the kernel or from user-space. 69714331Speter */ 69814331Speterstruct sysctl_req { 69914331Speter struct thread *td; /* used for access checking */ 70014331Speter int lock; /* wiring state */ 70114331Speter void *oldptr; 70214331Speter size_t oldlen; 70314331Speter size_t oldidx; 70414331Speter int (*oldfunc)(struct sysctl_req *, const void *, size_t); 70530994Sphk void *newptr; 70614331Speter size_t newlen; 70714331Speter size_t newidx; 70814331Speter int (*newfunc)(struct sysctl_req *, void *, size_t); 70930994Sphk size_t validlen; 71014331Speter int flags; 71114331Speter}; 71214331Speter 71314331SpeterSLIST_HEAD(sysctl_oid_list, sysctl_oid); 71414331Speter 71514331Speter/* 71614331Speter * This describes one "oid" in the MIB tree. Potentially more nodes can 71714331Speter * be hidden behind it, expanded by the handler. 71814331Speter */ 71914331Speterstruct sysctl_oid { 72014331Speter struct sysctl_oid_list *oid_parent; 72114331Speter SLIST_ENTRY(sysctl_oid) oid_link; 72214331Speter int oid_number; 72330994Sphk u_int oid_kind; 72414331Speter void *oid_arg1; 72514331Speter intptr_t oid_arg2; 72614331Speter const char *oid_name; 72730994Sphk int (*oid_handler)(SYSCTL_HANDLER_ARGS); 72814331Speter const char *oid_fmt; 72914331Speter int oid_refcnt; 73014331Speter u_int oid_running; 73114331Speter const char *oid_descr; 73214331Speter}; 73314331Speter 73414331Speter#define SYSCTL_DECL(...) 73514331Speter#define SYSCTL_NODE(...) 73614331Speter#define SYSCTL_INT(...) 73714331Speter#define SYSCTL_UINT(...) 73814331Speter#define SYSCTL_ULONG(...) 73914331Speter#define SYSCTL_PROC(...) 74014331Speter#define SYSCTL_QUAD(...) 74114331Speter#define SYSCTL_UQUAD(...) 74214331Speter#ifdef TUNABLE_INT 74330994Sphk#undef TUNABLE_INT 74414331Speter#undef TUNABLE_ULONG 74514331Speter#undef TUNABLE_QUAD 74614331Speter#endif 74730994Sphk#define TUNABLE_INT(...) 74814331Speter#define TUNABLE_ULONG(...) 74914331Speter#define TUNABLE_QUAD(...) 75014331Speter 75114331Speterint sysctl_handle_64(SYSCTL_HANDLER_ARGS); 75214331Speter 75314331Speter/* Errors */ 75414331Speter 75514331Speter#ifndef ERESTART 75614331Speter#define ERESTART (-1) 75714331Speter#endif 75814331Speter 75914331Speter#ifdef illumos 76014331Speter/* 76114331Speter * Cyclic information 76214331Speter */ 76330994Sphkextern kmutex_t cpu_lock; 76414331Speter 76514331Spetertypedef uintptr_t cyclic_id_t; 76614331Spetertypedef uint16_t cyc_level_t; 76730994Sphktypedef void (*cyc_func_t)(void *); 76814331Speter 76914331Speter#define CY_LOW_LEVEL 0 77014331Speter#define CY_INFINITY INT64_MAX 77114331Speter#define CYCLIC_NONE ((cyclic_id_t)0) 77214331Speter 77314331Spetertypedef struct cyc_time { 77414331Speter hrtime_t cyt_when; 77514331Speter hrtime_t cyt_interval; 77637950Sbde} cyc_time_t; 77737950Sbde 77814331Spetertypedef struct cyc_handler { 77914331Speter cyc_func_t cyh_func; 78014331Speter void *cyh_arg; 78114331Speter cyc_level_t cyh_level; 78214331Speter} cyc_handler_t; 78330994Sphk 78414331Speterextern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *); 78514331Speterextern void cyclic_remove(cyclic_id_t); 78614331Speterextern int cyclic_reprogram(cyclic_id_t, hrtime_t); 78730994Sphk#endif /* illumos */ 78814331Speter 78942499Seivind#ifdef illumos 79014331Speter/* 79114331Speter * Buf structure 79214331Speter */ 79314331Speter#define B_BUSY 0x0001 79414331Speter#define B_DONE 0x0002 79514331Speter#define B_ERROR 0x0004 79632266Sjmb#define B_READ 0x0040 /* read when I/O occurs */ 79732266Sjmb#define B_WRITE 0x0100 /* non-read pseudo-flag */ 79814331Speter 79914331Spetertypedef struct buf { 80032265Sjmb int b_flags; 80114331Speter size_t b_bcount; 80242499Seivind union { 80314331Speter caddr_t b_addr; 80414331Speter } b_un; 80549662Smarcel 80649662Smarcel lldaddr_t _b_blkno; 80749662Smarcel#define b_lblkno _b_blkno._f 80849662Smarcel size_t b_resid; 80949662Smarcel size_t b_bufsize; 81049662Smarcel int (*b_iodone)(struct buf *); 81149662Smarcel int b_error; 81249662Smarcel void *b_private; 81349662Smarcel} buf_t; 81449662Smarcel 81549662Smarcelextern void bioinit(buf_t *); 81649662Smarcelextern void biodone(buf_t *); 81749662Smarcelextern void bioerror(buf_t *, int); 81849662Smarcelextern int geterror(buf_t *); 81949662Smarcel#endif 82049662Smarcel 82149662Smarcel#ifdef __cplusplus 82249662Smarcel} 82349662Smarcel#endif 82449788Smarcel 82549788Smarcel#endif /* _SYS_ZFS_CONTEXT_H */ 82649788Smarcel