1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22744947dcSTom Erickson * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 235aeb9474SGarrett D'Amore * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2494dd93aeSGeorge Wilson * Copyright (c) 2012 by Delphix. All rights reserved. 254e3c9f44SBill Pijewski * Copyright (c) 2012, Joyent, Inc. All rights reserved. 265aeb9474SGarrett D'Amore */ 27fa9e4066Sahrens 28fa9e4066Sahrens #ifndef _SYS_ZFS_CONTEXT_H 29fa9e4066Sahrens #define _SYS_ZFS_CONTEXT_H 30fa9e4066Sahrens 31fa9e4066Sahrens #ifdef __cplusplus 32fa9e4066Sahrens extern "C" { 33fa9e4066Sahrens #endif 34fa9e4066Sahrens 35fa9e4066Sahrens #define _SYS_MUTEX_H 36fa9e4066Sahrens #define _SYS_RWLOCK_H 37fa9e4066Sahrens #define _SYS_CONDVAR_H 38fa9e4066Sahrens #define _SYS_SYSTM_H 39b420f3adSRichard Lowe #define _SYS_DEBUG_H 40fa9e4066Sahrens #define _SYS_T_LOCK_H 41fa9e4066Sahrens #define _SYS_VNODE_H 42fa9e4066Sahrens #define _SYS_VFS_H 43fa9e4066Sahrens #define _SYS_SUNDDI_H 44fa9e4066Sahrens #define _SYS_CALLB_H 45fa9e4066Sahrens 46fa9e4066Sahrens #include <stdio.h> 47fa9e4066Sahrens #include <stdlib.h> 48fa9e4066Sahrens #include <stddef.h> 49fa9e4066Sahrens #include <stdarg.h> 50fa9e4066Sahrens #include <fcntl.h> 51fa9e4066Sahrens #include <unistd.h> 52fa9e4066Sahrens #include <errno.h> 53fa9e4066Sahrens #include <string.h> 54fa9e4066Sahrens #include <strings.h> 55fa9e4066Sahrens #include <synch.h> 56fa9e4066Sahrens #include <thread.h> 57fa9e4066Sahrens #include <assert.h> 58fa9e4066Sahrens #include <alloca.h> 59fa9e4066Sahrens #include <umem.h> 60fa9e4066Sahrens #include <limits.h> 61fa9e4066Sahrens #include <atomic.h> 62fa9e4066Sahrens #include <dirent.h> 63fa9e4066Sahrens #include <time.h> 64*cd1c8b85SMatthew Ahrens #include <procfs.h> 65573ca77eSGeorge Wilson #include <libsysevent.h> 66fa9e4066Sahrens #include <sys/note.h> 67fa9e4066Sahrens #include <sys/types.h> 68ecd6cf80Smarks #include <sys/cred.h> 69fa9e4066Sahrens #include <sys/sysmacros.h> 70fa9e4066Sahrens #include <sys/bitmap.h> 71fa9e4066Sahrens #include <sys/resource.h> 72fa9e4066Sahrens #include <sys/byteorder.h> 73fa9e4066Sahrens #include <sys/list.h> 74fa9e4066Sahrens #include <sys/uio.h> 75fa9e4066Sahrens #include <sys/zfs_debug.h> 76fa9e4066Sahrens #include <sys/sdt.h> 7744cb6abcSbmc #include <sys/kstat.h> 78de8267e0Stimh #include <sys/u8_textprep.h> 793d7072f8Seschrock #include <sys/sysevent/eventdefs.h> 80573ca77eSGeorge Wilson #include <sys/sysevent/dev.h> 8192241e0bSTom Erickson #include <sys/sunddi.h> 82fa9e4066Sahrens 83fa9e4066Sahrens /* 84fa9e4066Sahrens * Debugging 85fa9e4066Sahrens */ 86fa9e4066Sahrens 87fa9e4066Sahrens /* 88fa9e4066Sahrens * Note that we are not using the debugging levels. 89fa9e4066Sahrens */ 90fa9e4066Sahrens 91fa9e4066Sahrens #define CE_CONT 0 /* continuation */ 92fa9e4066Sahrens #define CE_NOTE 1 /* notice */ 93fa9e4066Sahrens #define CE_WARN 2 /* warning */ 94fa9e4066Sahrens #define CE_PANIC 3 /* panic */ 95fa9e4066Sahrens #define CE_IGNORE 4 /* print nothing */ 96fa9e4066Sahrens 97fa9e4066Sahrens /* 98fa9e4066Sahrens * ZFS debugging 99fa9e4066Sahrens */ 100fa9e4066Sahrens 101fa9e4066Sahrens #ifdef ZFS_DEBUG 102fa9e4066Sahrens extern void dprintf_setup(int *argc, char **argv); 103fa9e4066Sahrens #endif /* ZFS_DEBUG */ 104fa9e4066Sahrens 105fa9e4066Sahrens extern void cmn_err(int, const char *, ...); 1060125049cSahrens extern void vcmn_err(int, const char *, __va_list); 107fa9e4066Sahrens extern void panic(const char *, ...); 108fa9e4066Sahrens extern void vpanic(const char *, __va_list); 109fa9e4066Sahrens 1100a4e9518Sgw #define fm_panic panic 1110a4e9518Sgw 112feef89cfSVictor Latushkin extern int aok; 113feef89cfSVictor Latushkin 114b420f3adSRichard Lowe /* This definition is copied from assert.h. */ 115b420f3adSRichard Lowe #if defined(__STDC__) 116b420f3adSRichard Lowe #if __STDC_VERSION__ - 0 >= 199901L 117b420f3adSRichard Lowe #define zverify(EX) (void)((EX) || (aok) || \ 118b420f3adSRichard Lowe (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) 119b420f3adSRichard Lowe #else 120b420f3adSRichard Lowe #define zverify(EX) (void)((EX) || (aok) || \ 121b420f3adSRichard Lowe (__assert(#EX, __FILE__, __LINE__), 0)) 122b420f3adSRichard Lowe #endif /* __STDC_VERSION__ - 0 >= 199901L */ 123b420f3adSRichard Lowe #else 124b420f3adSRichard Lowe #define zverify(EX) (void)((EX) || (aok) || \ 125b420f3adSRichard Lowe (_assert("EX", __FILE__, __LINE__), 0)) 126b420f3adSRichard Lowe #endif /* __STDC__ */ 127b420f3adSRichard Lowe 128b420f3adSRichard Lowe 129b420f3adSRichard Lowe #define VERIFY zverify 130b420f3adSRichard Lowe #define ASSERT zverify 131b420f3adSRichard Lowe #undef assert 132b420f3adSRichard Lowe #define assert zverify 133b420f3adSRichard Lowe 134b420f3adSRichard Lowe extern void __assert(const char *, const char *, int); 135b420f3adSRichard Lowe 136b420f3adSRichard Lowe #ifdef lint 137b420f3adSRichard Lowe #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) 138b420f3adSRichard Lowe #else 139b420f3adSRichard Lowe /* BEGIN CSTYLED */ 140b420f3adSRichard Lowe #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 141b420f3adSRichard Lowe const TYPE __left = (TYPE)(LEFT); \ 142b420f3adSRichard Lowe const TYPE __right = (TYPE)(RIGHT); \ 143b420f3adSRichard Lowe if (!(__left OP __right) && (!aok)) { \ 144b420f3adSRichard Lowe char *__buf = alloca(256); \ 145b420f3adSRichard Lowe (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ 146b420f3adSRichard Lowe #LEFT, #OP, #RIGHT, \ 147b420f3adSRichard Lowe (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ 148b420f3adSRichard Lowe __assert(__buf, __FILE__, __LINE__); \ 149b420f3adSRichard Lowe } \ 150b420f3adSRichard Lowe _NOTE(CONSTCOND) } while (0) 151b420f3adSRichard Lowe /* END CSTYLED */ 152b420f3adSRichard Lowe #endif /* lint */ 153b420f3adSRichard Lowe 154b420f3adSRichard Lowe #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 155b420f3adSRichard Lowe #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 156b420f3adSRichard Lowe #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 157b420f3adSRichard Lowe 158b420f3adSRichard Lowe #ifdef NDEBUG 159b420f3adSRichard Lowe #define ASSERT3S(x, y, z) ((void)0) 160b420f3adSRichard Lowe #define ASSERT3U(x, y, z) ((void)0) 161b420f3adSRichard Lowe #define ASSERT3P(x, y, z) ((void)0) 162b420f3adSRichard Lowe #else 163b420f3adSRichard Lowe #define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 164b420f3adSRichard Lowe #define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 165b420f3adSRichard Lowe #define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 166b420f3adSRichard Lowe #endif 167b420f3adSRichard Lowe 168fa9e4066Sahrens /* 1693d7072f8Seschrock * DTrace SDT probes have different signatures in userland than they do in 170fa9e4066Sahrens * kernel. If they're being used in kernel code, re-define them out of 171fa9e4066Sahrens * existence for their counterparts in libzpool. 172fa9e4066Sahrens */ 173fa9e4066Sahrens 17405715f94SMark Maybee #ifdef DTRACE_PROBE 17505715f94SMark Maybee #undef DTRACE_PROBE 17605715f94SMark Maybee #define DTRACE_PROBE(a) ((void)0) 17705715f94SMark Maybee #endif /* DTRACE_PROBE */ 17805715f94SMark Maybee 179fa9e4066Sahrens #ifdef DTRACE_PROBE1 180fa9e4066Sahrens #undef DTRACE_PROBE1 181fa9e4066Sahrens #define DTRACE_PROBE1(a, b, c) ((void)0) 182fa9e4066Sahrens #endif /* DTRACE_PROBE1 */ 183fa9e4066Sahrens 184fa9e4066Sahrens #ifdef DTRACE_PROBE2 185fa9e4066Sahrens #undef DTRACE_PROBE2 186fa9e4066Sahrens #define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 187fa9e4066Sahrens #endif /* DTRACE_PROBE2 */ 188fa9e4066Sahrens 189c543ec06Sahrens #ifdef DTRACE_PROBE3 190c543ec06Sahrens #undef DTRACE_PROBE3 191c543ec06Sahrens #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) 192c543ec06Sahrens #endif /* DTRACE_PROBE3 */ 193c543ec06Sahrens 194faafa6e3Sahrens #ifdef DTRACE_PROBE4 195faafa6e3Sahrens #undef DTRACE_PROBE4 196faafa6e3Sahrens #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) 197faafa6e3Sahrens #endif /* DTRACE_PROBE4 */ 198faafa6e3Sahrens 199fa9e4066Sahrens /* 200fa9e4066Sahrens * Threads 201fa9e4066Sahrens */ 202fa9e4066Sahrens #define curthread ((void *)(uintptr_t)thr_self()) 203fa9e4066Sahrens 204fa9e4066Sahrens typedef struct kthread kthread_t; 205fa9e4066Sahrens 206fa9e4066Sahrens #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 207fa9e4066Sahrens zk_thread_create(func, arg) 2085ad82045Snd #define thread_exit() thr_exit(NULL) 20935a5a358SJonathan Adams #define thread_join(t) panic("libzpool cannot join threads") 21035a5a358SJonathan Adams 21135a5a358SJonathan Adams #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) 21235a5a358SJonathan Adams 21335a5a358SJonathan Adams /* in libzpool, p0 exists only to have its address taken */ 21435a5a358SJonathan Adams struct proc { 21535a5a358SJonathan Adams uintptr_t this_is_never_used_dont_dereference_it; 21635a5a358SJonathan Adams }; 21735a5a358SJonathan Adams 21835a5a358SJonathan Adams extern struct proc p0; 2194e3c9f44SBill Pijewski #define curproc (&p0) 22035a5a358SJonathan Adams 22135a5a358SJonathan Adams #define PS_NONE -1 222fa9e4066Sahrens 223fa9e4066Sahrens extern kthread_t *zk_thread_create(void (*func)(), void *arg); 224fa9e4066Sahrens 225fa9e4066Sahrens #define issig(why) (FALSE) 226fa9e4066Sahrens #define ISSIG(thr, why) (FALSE) 227fa9e4066Sahrens 228fa9e4066Sahrens /* 229fa9e4066Sahrens * Mutexes 230fa9e4066Sahrens */ 231fa9e4066Sahrens typedef struct kmutex { 232c25056deSgw void *m_owner; 233c25056deSgw boolean_t initialized; 234c25056deSgw mutex_t m_lock; 235fa9e4066Sahrens } kmutex_t; 236fa9e4066Sahrens 237fa9e4066Sahrens #define MUTEX_DEFAULT USYNC_THREAD 238744947dcSTom Erickson #undef MUTEX_HELD 239744947dcSTom Erickson #undef MUTEX_NOT_HELD 240fa9e4066Sahrens #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) 241744947dcSTom Erickson #define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m)) 242fa9e4066Sahrens 243fa9e4066Sahrens /* 244fa9e4066Sahrens * Argh -- we have to get cheesy here because the kernel and userland 245fa9e4066Sahrens * have different signatures for the same routine. 246fa9e4066Sahrens */ 247fa9e4066Sahrens extern int _mutex_init(mutex_t *mp, int type, void *arg); 248fa9e4066Sahrens extern int _mutex_destroy(mutex_t *mp); 249fa9e4066Sahrens 250fa9e4066Sahrens #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 251fa9e4066Sahrens #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 252fa9e4066Sahrens 253fa9e4066Sahrens extern void zmutex_init(kmutex_t *mp); 254fa9e4066Sahrens extern void zmutex_destroy(kmutex_t *mp); 255fa9e4066Sahrens extern void mutex_enter(kmutex_t *mp); 256fa9e4066Sahrens extern void mutex_exit(kmutex_t *mp); 257fa9e4066Sahrens extern int mutex_tryenter(kmutex_t *mp); 258fa9e4066Sahrens extern void *mutex_owner(kmutex_t *mp); 259fa9e4066Sahrens 260fa9e4066Sahrens /* 261fa9e4066Sahrens * RW locks 262fa9e4066Sahrens */ 263fa9e4066Sahrens typedef struct krwlock { 264fa9e4066Sahrens void *rw_owner; 265c25056deSgw boolean_t initialized; 266fa9e4066Sahrens rwlock_t rw_lock; 267fa9e4066Sahrens } krwlock_t; 268fa9e4066Sahrens 269fa9e4066Sahrens typedef int krw_t; 270fa9e4066Sahrens 271fa9e4066Sahrens #define RW_READER 0 272fa9e4066Sahrens #define RW_WRITER 1 273fa9e4066Sahrens #define RW_DEFAULT USYNC_THREAD 274fa9e4066Sahrens 275fa9e4066Sahrens #undef RW_READ_HELD 276fa9e4066Sahrens #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) 277fa9e4066Sahrens 278fa9e4066Sahrens #undef RW_WRITE_HELD 279fa9e4066Sahrens #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) 280fa9e4066Sahrens 281fa9e4066Sahrens extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 282fa9e4066Sahrens extern void rw_destroy(krwlock_t *rwlp); 283fa9e4066Sahrens extern void rw_enter(krwlock_t *rwlp, krw_t rw); 284fa9e4066Sahrens extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 285fa9e4066Sahrens extern int rw_tryupgrade(krwlock_t *rwlp); 286fa9e4066Sahrens extern void rw_exit(krwlock_t *rwlp); 287fa9e4066Sahrens #define rw_downgrade(rwlp) do { } while (0) 288fa9e4066Sahrens 289ecd6cf80Smarks extern uid_t crgetuid(cred_t *cr); 2904445fffbSMatthew Ahrens extern uid_t crgetruid(cred_t *cr); 291ecd6cf80Smarks extern gid_t crgetgid(cred_t *cr); 292ecd6cf80Smarks extern int crgetngroups(cred_t *cr); 293ecd6cf80Smarks extern gid_t *crgetgroups(cred_t *cr); 294ecd6cf80Smarks 295fa9e4066Sahrens /* 296fa9e4066Sahrens * Condition variables 297fa9e4066Sahrens */ 298fa9e4066Sahrens typedef cond_t kcondvar_t; 299fa9e4066Sahrens 300fa9e4066Sahrens #define CV_DEFAULT USYNC_THREAD 301fa9e4066Sahrens 302fa9e4066Sahrens extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 303fa9e4066Sahrens extern void cv_destroy(kcondvar_t *cv); 304fa9e4066Sahrens extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 305fa9e4066Sahrens extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 306fa9e4066Sahrens extern void cv_signal(kcondvar_t *cv); 307fa9e4066Sahrens extern void cv_broadcast(kcondvar_t *cv); 308fa9e4066Sahrens 30944cb6abcSbmc /* 31044cb6abcSbmc * kstat creation, installation and deletion 31144cb6abcSbmc */ 31244cb6abcSbmc extern kstat_t *kstat_create(char *, int, 31344cb6abcSbmc char *, char *, uchar_t, ulong_t, uchar_t); 31444cb6abcSbmc extern void kstat_install(kstat_t *); 31544cb6abcSbmc extern void kstat_delete(kstat_t *); 31644cb6abcSbmc 317fa9e4066Sahrens /* 318fa9e4066Sahrens * Kernel memory 319fa9e4066Sahrens */ 320fa9e4066Sahrens #define KM_SLEEP UMEM_NOFAIL 3211ab7f2deSmaybee #define KM_PUSHPAGE KM_SLEEP 322fa9e4066Sahrens #define KM_NOSLEEP UMEM_DEFAULT 323a0965f35Sbonwick #define KMC_NODEBUG UMC_NODEBUG 324e291592aSJonathan Adams #define KMC_NOTOUCH 0 /* not needed for userland caches */ 325fa9e4066Sahrens #define kmem_alloc(_s, _f) umem_alloc(_s, _f) 326fa9e4066Sahrens #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 327fa9e4066Sahrens #define kmem_free(_b, _s) umem_free(_b, _s) 328fa9e4066Sahrens #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 329fa9e4066Sahrens umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 330fa9e4066Sahrens #define kmem_cache_destroy(_c) umem_cache_destroy(_c) 331fa9e4066Sahrens #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 332fa9e4066Sahrens #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 333fa9e4066Sahrens #define kmem_debugging() 0 334744947dcSTom Erickson #define kmem_cache_reap_now(_c) /* nothing */ 335744947dcSTom Erickson #define kmem_cache_set_move(_c, _cb) /* nothing */ 33694dd93aeSGeorge Wilson #define vmem_qcache_reap(_v) /* nothing */ 337744947dcSTom Erickson #define POINTER_INVALIDATE(_pp) /* nothing */ 338744947dcSTom Erickson #define POINTER_IS_VALID(_p) 0 339fa9e4066Sahrens 34094dd93aeSGeorge Wilson extern vmem_t *zio_arena; 34194dd93aeSGeorge Wilson 342fa9e4066Sahrens typedef umem_cache_t kmem_cache_t; 343fa9e4066Sahrens 344744947dcSTom Erickson typedef enum kmem_cbrc { 345744947dcSTom Erickson KMEM_CBRC_YES, 346744947dcSTom Erickson KMEM_CBRC_NO, 347744947dcSTom Erickson KMEM_CBRC_LATER, 348744947dcSTom Erickson KMEM_CBRC_DONT_NEED, 349744947dcSTom Erickson KMEM_CBRC_DONT_KNOW 350744947dcSTom Erickson } kmem_cbrc_t; 351744947dcSTom Erickson 352fa9e4066Sahrens /* 353fa9e4066Sahrens * Task queues 354fa9e4066Sahrens */ 355fa9e4066Sahrens typedef struct taskq taskq_t; 356fa9e4066Sahrens typedef uintptr_t taskqid_t; 357fa9e4066Sahrens typedef void (task_func_t)(void *); 358fa9e4066Sahrens 3595aeb9474SGarrett D'Amore typedef struct taskq_ent { 3605aeb9474SGarrett D'Amore struct taskq_ent *tqent_next; 3615aeb9474SGarrett D'Amore struct taskq_ent *tqent_prev; 3625aeb9474SGarrett D'Amore task_func_t *tqent_func; 3635aeb9474SGarrett D'Amore void *tqent_arg; 3645aeb9474SGarrett D'Amore uintptr_t tqent_flags; 3655aeb9474SGarrett D'Amore } taskq_ent_t; 3665aeb9474SGarrett D'Amore 3675aeb9474SGarrett D'Amore #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */ 3685aeb9474SGarrett D'Amore 369fa9e4066Sahrens #define TASKQ_PREPOPULATE 0x0001 370fa9e4066Sahrens #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 371fa9e4066Sahrens #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 37235a5a358SJonathan Adams #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ 37335a5a358SJonathan Adams #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ 374fa9e4066Sahrens 375fa9e4066Sahrens #define TQ_SLEEP KM_SLEEP /* Can block for memory */ 376fa9e4066Sahrens #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 37735a5a358SJonathan Adams #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 37835a5a358SJonathan Adams #define TQ_FRONT 0x08 /* Queue in front */ 379fa9e4066Sahrens 3805aeb9474SGarrett D'Amore 38188b7b0f2SMatthew Ahrens extern taskq_t *system_taskq; 38288b7b0f2SMatthew Ahrens 383fa9e4066Sahrens extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 38435a5a358SJonathan Adams #define taskq_create_proc(a, b, c, d, e, p, f) \ 38535a5a358SJonathan Adams (taskq_create(a, b, c, d, e, f)) 38635a5a358SJonathan Adams #define taskq_create_sysdc(a, b, d, e, p, dc, f) \ 38735a5a358SJonathan Adams (taskq_create(a, b, maxclsyspri, d, e, f)) 388fa9e4066Sahrens extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 3895aeb9474SGarrett D'Amore extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t, 3905aeb9474SGarrett D'Amore taskq_ent_t *); 391fa9e4066Sahrens extern void taskq_destroy(taskq_t *); 392fa9e4066Sahrens extern void taskq_wait(taskq_t *); 393fa9e4066Sahrens extern int taskq_member(taskq_t *, void *); 39488b7b0f2SMatthew Ahrens extern void system_taskq_init(void); 395d20e665cSRicardo M. Correia extern void system_taskq_fini(void); 396fa9e4066Sahrens 397da6c28aaSamw #define XVA_MAPSIZE 3 398da6c28aaSamw #define XVA_MAGIC 0x78766174 399da6c28aaSamw 400fa9e4066Sahrens /* 401fa9e4066Sahrens * vnodes 402fa9e4066Sahrens */ 403fa9e4066Sahrens typedef struct vnode { 404fa9e4066Sahrens uint64_t v_size; 405fa9e4066Sahrens int v_fd; 406fa9e4066Sahrens char *v_path; 407fa9e4066Sahrens } vnode_t; 408fa9e4066Sahrens 4097a286c47SDai Ngo #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ 410da6c28aaSamw 411da6c28aaSamw typedef struct xoptattr { 412da6c28aaSamw timestruc_t xoa_createtime; /* Create time of file */ 413da6c28aaSamw uint8_t xoa_archive; 414da6c28aaSamw uint8_t xoa_system; 415da6c28aaSamw uint8_t xoa_readonly; 416da6c28aaSamw uint8_t xoa_hidden; 417da6c28aaSamw uint8_t xoa_nounlink; 418da6c28aaSamw uint8_t xoa_immutable; 419da6c28aaSamw uint8_t xoa_appendonly; 420da6c28aaSamw uint8_t xoa_nodump; 421da6c28aaSamw uint8_t xoa_settable; 422da6c28aaSamw uint8_t xoa_opaque; 423da6c28aaSamw uint8_t xoa_av_quarantined; 424da6c28aaSamw uint8_t xoa_av_modified; 4257a286c47SDai Ngo uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; 4267a286c47SDai Ngo uint8_t xoa_reparse; 427fd9ee8b5Sjoyce mcintosh uint8_t xoa_offline; 428fd9ee8b5Sjoyce mcintosh uint8_t xoa_sparse; 429da6c28aaSamw } xoptattr_t; 430da6c28aaSamw 431fa9e4066Sahrens typedef struct vattr { 432fa9e4066Sahrens uint_t va_mask; /* bit-mask of attributes */ 433fa9e4066Sahrens u_offset_t va_size; /* file size in bytes */ 434fa9e4066Sahrens } vattr_t; 435fa9e4066Sahrens 436da6c28aaSamw 437da6c28aaSamw typedef struct xvattr { 438da6c28aaSamw vattr_t xva_vattr; /* Embedded vattr structure */ 439da6c28aaSamw uint32_t xva_magic; /* Magic Number */ 440da6c28aaSamw uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ 441da6c28aaSamw uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ 442da6c28aaSamw uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ 443da6c28aaSamw uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ 444da6c28aaSamw xoptattr_t xva_xoptattrs; /* Optional attributes */ 445da6c28aaSamw } xvattr_t; 446da6c28aaSamw 447da6c28aaSamw typedef struct vsecattr { 448da6c28aaSamw uint_t vsa_mask; /* See below */ 449da6c28aaSamw int vsa_aclcnt; /* ACL entry count */ 450da6c28aaSamw void *vsa_aclentp; /* pointer to ACL entries */ 451da6c28aaSamw int vsa_dfaclcnt; /* default ACL entry count */ 452da6c28aaSamw void *vsa_dfaclentp; /* pointer to default ACL entries */ 453da6c28aaSamw size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ 454da6c28aaSamw } vsecattr_t; 455da6c28aaSamw 456da6c28aaSamw #define AT_TYPE 0x00001 457da6c28aaSamw #define AT_MODE 0x00002 458da6c28aaSamw #define AT_UID 0x00004 459da6c28aaSamw #define AT_GID 0x00008 460da6c28aaSamw #define AT_FSID 0x00010 461da6c28aaSamw #define AT_NODEID 0x00020 462da6c28aaSamw #define AT_NLINK 0x00040 463da6c28aaSamw #define AT_SIZE 0x00080 464da6c28aaSamw #define AT_ATIME 0x00100 465da6c28aaSamw #define AT_MTIME 0x00200 466da6c28aaSamw #define AT_CTIME 0x00400 467da6c28aaSamw #define AT_RDEV 0x00800 468da6c28aaSamw #define AT_BLKSIZE 0x01000 469da6c28aaSamw #define AT_NBLOCKS 0x02000 470da6c28aaSamw #define AT_SEQ 0x08000 471da6c28aaSamw #define AT_XVATTR 0x10000 472fa9e4066Sahrens 473fa9e4066Sahrens #define CRCREAT 0 474fa9e4066Sahrens 475095bcd66SGeorge Wilson extern int fop_getattr(vnode_t *vp, vattr_t *vap); 476095bcd66SGeorge Wilson 477da6c28aaSamw #define VOP_CLOSE(vp, f, c, o, cr, ct) 0 478da6c28aaSamw #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 479095bcd66SGeorge Wilson #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap)); 480fa9e4066Sahrens 481da6c28aaSamw #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) 482fa9e4066Sahrens 483fa9e4066Sahrens #define VN_RELE(vp) vn_close(vp) 484fa9e4066Sahrens 485fa9e4066Sahrens extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 486fa9e4066Sahrens int x2, int x3); 487fa9e4066Sahrens extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 488da6c28aaSamw int x2, int x3, vnode_t *vp, int fd); 489fa9e4066Sahrens extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 490fa9e4066Sahrens offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 491fa9e4066Sahrens extern void vn_close(vnode_t *vp); 492fa9e4066Sahrens 493fa9e4066Sahrens #define vn_remove(path, x1, x2) remove(path) 494fa9e4066Sahrens #define vn_rename(from, to, seg) rename((from), (to)) 4950373e76bSbonwick #define vn_is_readonly(vp) B_FALSE 496fa9e4066Sahrens 497fa9e4066Sahrens extern vnode_t *rootdir; 498fa9e4066Sahrens 499fa9e4066Sahrens #include <sys/file.h> /* for FREAD, FWRITE, etc */ 500fa9e4066Sahrens 501fa9e4066Sahrens /* 502fa9e4066Sahrens * Random stuff 503fa9e4066Sahrens */ 504d3d50737SRafael Vanoni #define ddi_get_lbolt() (gethrtime() >> 23) 505d3d50737SRafael Vanoni #define ddi_get_lbolt64() (gethrtime() >> 23) 506fa9e4066Sahrens #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 507fa9e4066Sahrens 508fa9e4066Sahrens extern void delay(clock_t ticks); 509fa9e4066Sahrens 510fa9e4066Sahrens #define gethrestime_sec() time(NULL) 51171eb0538SChris Kirby #define gethrestime(t) \ 51271eb0538SChris Kirby do {\ 51371eb0538SChris Kirby (t)->tv_sec = gethrestime_sec();\ 51471eb0538SChris Kirby (t)->tv_nsec = 0;\ 51571eb0538SChris Kirby } while (0); 516fa9e4066Sahrens 517fa9e4066Sahrens #define max_ncpus 64 518fa9e4066Sahrens 519fa9e4066Sahrens #define minclsyspri 60 520fa9e4066Sahrens #define maxclsyspri 99 521fa9e4066Sahrens 522fa9e4066Sahrens #define CPU_SEQID (thr_self() & (max_ncpus - 1)) 523fa9e4066Sahrens 524fa9e4066Sahrens #define kcred NULL 525fa9e4066Sahrens #define CRED() NULL 526fa9e4066Sahrens 52705715f94SMark Maybee #define ptob(x) ((x) * PAGESIZE) 52805715f94SMark Maybee 529fa9e4066Sahrens extern uint64_t physmem; 530fa9e4066Sahrens 531fa9e4066Sahrens extern int highbit(ulong_t i); 532fa9e4066Sahrens extern int random_get_bytes(uint8_t *ptr, size_t len); 533fa9e4066Sahrens extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 534fa9e4066Sahrens 535fa9e4066Sahrens extern void kernel_init(int); 536fa9e4066Sahrens extern void kernel_fini(void); 537fa9e4066Sahrens 538fa9e4066Sahrens struct spa; 539fa9e4066Sahrens extern void nicenum(uint64_t num, char *buf); 540fa9e4066Sahrens extern void show_pool_stats(struct spa *); 541fa9e4066Sahrens 542fa9e4066Sahrens typedef struct callb_cpr { 543fa9e4066Sahrens kmutex_t *cc_lockp; 544fa9e4066Sahrens } callb_cpr_t; 545fa9e4066Sahrens 546fa9e4066Sahrens #define CALLB_CPR_INIT(cp, lockp, func, name) { \ 547fa9e4066Sahrens (cp)->cc_lockp = lockp; \ 548fa9e4066Sahrens } 549fa9e4066Sahrens 550fa9e4066Sahrens #define CALLB_CPR_SAFE_BEGIN(cp) { \ 551fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 552fa9e4066Sahrens } 553fa9e4066Sahrens 554fa9e4066Sahrens #define CALLB_CPR_SAFE_END(cp, lockp) { \ 555fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 556fa9e4066Sahrens } 557fa9e4066Sahrens 558fa9e4066Sahrens #define CALLB_CPR_EXIT(cp) { \ 559fa9e4066Sahrens ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 560fa9e4066Sahrens mutex_exit((cp)->cc_lockp); \ 561fa9e4066Sahrens } 562fa9e4066Sahrens 563fa9e4066Sahrens #define zone_dataset_visible(x, y) (1) 564fa9e4066Sahrens #define INGLOBALZONE(z) (1) 565fa9e4066Sahrens 566ae46e4c7SMatthew Ahrens extern char *kmem_asprintf(const char *fmt, ...); 567ae46e4c7SMatthew Ahrens #define strfree(str) kmem_free((str), strlen(str)+1) 568ae46e4c7SMatthew Ahrens 56995173954Sek /* 57095173954Sek * Hostname information 57195173954Sek */ 5725679c89fSjv extern char hw_serial[]; /* for userland-emulated hostid access */ 57395173954Sek extern int ddi_strtoul(const char *str, char **nptr, int base, 57495173954Sek unsigned long *result); 57595173954Sek 5760a586ceaSMark Shellenbaum extern int ddi_strtoull(const char *str, char **nptr, int base, 5770a586ceaSMark Shellenbaum u_longlong_t *result); 5780a586ceaSMark Shellenbaum 579ea8dc4b6Seschrock /* ZFS Boot Related stuff. */ 580ea8dc4b6Seschrock 581ea8dc4b6Seschrock struct _buf { 582ea8dc4b6Seschrock intptr_t _fd; 583ea8dc4b6Seschrock }; 584ea8dc4b6Seschrock 585ea8dc4b6Seschrock struct bootstat { 586ea8dc4b6Seschrock uint64_t st_size; 587ea8dc4b6Seschrock }; 588ea8dc4b6Seschrock 589da6c28aaSamw typedef struct ace_object { 590da6c28aaSamw uid_t a_who; 591da6c28aaSamw uint32_t a_access_mask; 592da6c28aaSamw uint16_t a_flags; 593da6c28aaSamw uint16_t a_type; 594da6c28aaSamw uint8_t a_obj_type[16]; 595da6c28aaSamw uint8_t a_inherit_obj_type[16]; 596da6c28aaSamw } ace_object_t; 597da6c28aaSamw 598da6c28aaSamw 599da6c28aaSamw #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 600da6c28aaSamw #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 601da6c28aaSamw #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 602da6c28aaSamw #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 603da6c28aaSamw 604ea8dc4b6Seschrock extern struct _buf *kobj_open_file(char *name); 605ea8dc4b6Seschrock extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 606ea8dc4b6Seschrock unsigned off); 607ea8dc4b6Seschrock extern void kobj_close_file(struct _buf *file); 608b1b8ab34Slling extern int kobj_get_filesize(struct _buf *file, uint64_t *size); 609ecd6cf80Smarks extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 610ecd6cf80Smarks extern int zfs_secpolicy_rename_perms(const char *from, const char *to, 611ecd6cf80Smarks cred_t *cr); 612ecd6cf80Smarks extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 613ecd6cf80Smarks extern zoneid_t getzoneid(void); 614ea8dc4b6Seschrock 615e0d35c44Smarks /* SID stuff */ 616e0d35c44Smarks typedef struct ksiddomain { 617e0d35c44Smarks uint_t kd_ref; 618e0d35c44Smarks uint_t kd_len; 619e0d35c44Smarks char *kd_name; 620e0d35c44Smarks } ksiddomain_t; 621e0d35c44Smarks 622e0d35c44Smarks ksiddomain_t *ksid_lookupdomain(const char *); 623e0d35c44Smarks void ksiddomain_rele(ksiddomain_t *); 624e0d35c44Smarks 625573ca77eSGeorge Wilson #define DDI_SLEEP KM_SLEEP 626573ca77eSGeorge Wilson #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \ 627573ca77eSGeorge Wilson sysevent_post_event(_c, _d, _b, "libzpool", _e, _f) 628573ca77eSGeorge Wilson 629f0547164Slling #ifdef __cplusplus 630f0547164Slling } 631f0547164Slling #endif 632f0547164Slling 633fa9e4066Sahrens #endif /* _SYS_ZFS_CONTEXT_H */ 634