zfs_context.h revision 235222
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 24 */ 25 26#ifndef _SYS_ZFS_CONTEXT_H 27#define _SYS_ZFS_CONTEXT_H 28 29#ifdef __cplusplus 30extern "C" { 31#endif 32 33#define _SYS_MUTEX_H 34#define _SYS_RWLOCK_H 35#define _SYS_CONDVAR_H 36#define _SYS_SYSTM_H 37#define _SYS_DEBUG_H 38#define _SYS_T_LOCK_H 39#define _SYS_VNODE_H 40#define _SYS_VFS_H 41#define _SYS_SUNDDI_H 42#define _SYS_CALLB_H 43#define _SYS_SCHED_H_ 44 45#include <solaris.h> 46#include <stdio.h> 47#include <stdlib.h> 48#include <stddef.h> 49#include <stdarg.h> 50#include <fcntl.h> 51#include <unistd.h> 52#include <errno.h> 53#include <string.h> 54#include <strings.h> 55#include <thread.h> 56#include <assert.h> 57#include <limits.h> 58#include <dirent.h> 59#include <time.h> 60#include <math.h> 61#include <umem.h> 62#include <inttypes.h> 63#include <fsshare.h> 64#include <sys/note.h> 65#include <sys/types.h> 66#include <sys/cred.h> 67#include <sys/atomic.h> 68#include <sys/sysmacros.h> 69#include <sys/bitmap.h> 70#include <sys/resource.h> 71#include <sys/byteorder.h> 72#include <sys/list.h> 73#include <sys/time.h> 74#include <sys/uio.h> 75#include <sys/mntent.h> 76#include <sys/mnttab.h> 77#include <sys/zfs_debug.h> 78#include <sys/debug.h> 79#include <sys/sdt.h> 80#include <sys/kstat.h> 81#include <sys/u8_textprep.h> 82#include <sys/kernel.h> 83#include <sys/disk.h> 84#include <sys/sysevent.h> 85#include <sys/sysevent/eventdefs.h> 86#include <sys/sysevent/dev.h> 87#include <machine/atomic.h> 88 89#define ZFS_EXPORTS_PATH "/etc/zfs/exports" 90 91/* 92 * Debugging 93 */ 94 95/* 96 * Note that we are not using the debugging levels. 97 */ 98 99#define CE_CONT 0 /* continuation */ 100#define CE_NOTE 1 /* notice */ 101#define CE_WARN 2 /* warning */ 102#define CE_PANIC 3 /* panic */ 103#define CE_IGNORE 4 /* print nothing */ 104 105/* 106 * ZFS debugging 107 */ 108 109#define ZFS_LOG(...) do { } while (0) 110 111typedef u_longlong_t rlim64_t; 112#define RLIM64_INFINITY ((rlim64_t)-3) 113 114#ifdef ZFS_DEBUG 115extern void dprintf_setup(int *argc, char **argv); 116#endif /* ZFS_DEBUG */ 117 118extern void cmn_err(int, const char *, ...); 119extern void vcmn_err(int, const char *, __va_list); 120extern void panic(const char *, ...); 121extern void vpanic(const char *, __va_list); 122 123#define fm_panic panic 124 125extern int aok; 126 127/* This definition is copied from assert.h. */ 128#if defined(__STDC__) 129#if __STDC_VERSION__ - 0 >= 199901L 130#define zverify(EX) (void)((EX) || (aok) || \ 131 (__assert(#EX, __FILE__, __LINE__), 0)) 132#else 133#define zverify(EX) (void)((EX) || (aok) || \ 134 (__assert(#EX, __FILE__, __LINE__), 0)) 135#endif /* __STDC_VERSION__ - 0 >= 199901L */ 136#else 137#define zverify(EX) (void)((EX) || (aok) || \ 138 (_assert("EX", __FILE__, __LINE__), 0)) 139#endif /* __STDC__ */ 140 141 142#define VERIFY zverify 143#define ASSERT zverify 144#undef assert 145#define assert zverify 146 147extern void __assert(const char *, const char *, int); 148 149#ifdef lint 150#define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) 151#else 152/* BEGIN CSTYLED */ 153#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ 154 const TYPE __left = (TYPE)(LEFT); \ 155 const TYPE __right = (TYPE)(RIGHT); \ 156 if (!(__left OP __right) && (!aok)) { \ 157 char *__buf = alloca(256); \ 158 (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ 159 #LEFT, #OP, #RIGHT, \ 160 (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ 161 __assert(__buf, __FILE__, __LINE__); \ 162 } \ 163_NOTE(CONSTCOND) } while (0) 164/* END CSTYLED */ 165#endif /* lint */ 166 167#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) 168#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) 169#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) 170 171#ifdef NDEBUG 172#define ASSERT3S(x, y, z) ((void)0) 173#define ASSERT3U(x, y, z) ((void)0) 174#define ASSERT3P(x, y, z) ((void)0) 175#else 176#define ASSERT3S(x, y, z) VERIFY3S(x, y, z) 177#define ASSERT3U(x, y, z) VERIFY3U(x, y, z) 178#define ASSERT3P(x, y, z) VERIFY3P(x, y, z) 179#endif 180 181/* 182 * DTrace SDT probes have different signatures in userland than they do in 183 * kernel. If they're being used in kernel code, re-define them out of 184 * existence for their counterparts in libzpool. 185 */ 186 187#ifdef DTRACE_PROBE 188#undef DTRACE_PROBE 189#define DTRACE_PROBE(a) ((void)0) 190#endif /* DTRACE_PROBE */ 191 192#ifdef DTRACE_PROBE1 193#undef DTRACE_PROBE1 194#define DTRACE_PROBE1(a, b, c) ((void)0) 195#endif /* DTRACE_PROBE1 */ 196 197#ifdef DTRACE_PROBE2 198#undef DTRACE_PROBE2 199#define DTRACE_PROBE2(a, b, c, d, e) ((void)0) 200#endif /* DTRACE_PROBE2 */ 201 202#ifdef DTRACE_PROBE3 203#undef DTRACE_PROBE3 204#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) 205#endif /* DTRACE_PROBE3 */ 206 207#ifdef DTRACE_PROBE4 208#undef DTRACE_PROBE4 209#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) 210#endif /* DTRACE_PROBE4 */ 211 212/* 213 * Threads 214 */ 215#define curthread ((void *)(uintptr_t)thr_self()) 216 217typedef struct kthread kthread_t; 218 219#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ 220 zk_thread_create(func, arg) 221#define thread_exit() thr_exit(NULL) 222#define thread_join(t) panic("libzpool cannot join threads") 223 224#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) 225 226/* in libzpool, p0 exists only to have its address taken */ 227struct proc { 228 uintptr_t this_is_never_used_dont_dereference_it; 229}; 230 231extern struct proc p0; 232#define curproc (&p0) 233 234#define PS_NONE -1 235 236extern kthread_t *zk_thread_create(void (*func)(), void *arg); 237 238#define issig(why) (FALSE) 239#define ISSIG(thr, why) (FALSE) 240 241/* 242 * Mutexes 243 */ 244typedef struct kmutex { 245 void *m_owner; 246 boolean_t initialized; 247 mutex_t m_lock; 248} kmutex_t; 249 250#define MUTEX_DEFAULT USYNC_THREAD 251#undef MUTEX_HELD 252#undef MUTEX_NOT_HELD 253#define MUTEX_HELD(m) ((m)->m_owner == curthread) 254#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m)) 255#define _mutex_held(m) pthread_mutex_isowned_np(m) 256 257/* 258 * Argh -- we have to get cheesy here because the kernel and userland 259 * have different signatures for the same routine. 260 */ 261//extern int _mutex_init(mutex_t *mp, int type, void *arg); 262//extern int _mutex_destroy(mutex_t *mp); 263//extern int _mutex_owned(mutex_t *mp); 264 265#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) 266#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) 267#define mutex_owned(mp) zmutex_owned((kmutex_t *)(mp)) 268 269extern void zmutex_init(kmutex_t *mp); 270extern void zmutex_destroy(kmutex_t *mp); 271extern int zmutex_owned(kmutex_t *mp); 272extern void mutex_enter(kmutex_t *mp); 273extern void mutex_exit(kmutex_t *mp); 274extern int mutex_tryenter(kmutex_t *mp); 275extern void *mutex_owner(kmutex_t *mp); 276 277/* 278 * RW locks 279 */ 280typedef struct krwlock { 281 int rw_count; 282 void *rw_owner; 283 boolean_t initialized; 284 rwlock_t rw_lock; 285} krwlock_t; 286 287typedef int krw_t; 288 289#define RW_READER 0 290#define RW_WRITER 1 291#define RW_DEFAULT USYNC_THREAD 292 293#undef RW_READ_HELD 294#define RW_READ_HELD(x) ((x)->rw_owner == NULL && (x)->rw_count > 0) 295 296#undef RW_WRITE_HELD 297#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread) 298#define RW_LOCK_HELD(x) rw_lock_held(x) 299 300extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); 301extern void rw_destroy(krwlock_t *rwlp); 302extern void rw_enter(krwlock_t *rwlp, krw_t rw); 303extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); 304extern int rw_tryupgrade(krwlock_t *rwlp); 305extern void rw_exit(krwlock_t *rwlp); 306extern int rw_lock_held(krwlock_t *rwlp); 307#define rw_downgrade(rwlp) do { } while (0) 308 309extern uid_t crgetuid(cred_t *cr); 310extern gid_t crgetgid(cred_t *cr); 311extern int crgetngroups(cred_t *cr); 312extern gid_t *crgetgroups(cred_t *cr); 313 314/* 315 * Condition variables 316 */ 317typedef cond_t kcondvar_t; 318 319#define CV_DEFAULT USYNC_THREAD 320 321extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); 322extern void cv_destroy(kcondvar_t *cv); 323extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); 324extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); 325extern void cv_signal(kcondvar_t *cv); 326extern void cv_broadcast(kcondvar_t *cv); 327 328/* 329 * Kernel memory 330 */ 331#define KM_SLEEP UMEM_NOFAIL 332#define KM_PUSHPAGE KM_SLEEP 333#define KM_NOSLEEP UMEM_DEFAULT 334#define KMC_NODEBUG UMC_NODEBUG 335#define KMC_NOTOUCH 0 /* not needed for userland caches */ 336#define KM_NODEBUG 0 337#define kmem_alloc(_s, _f) umem_alloc(_s, _f) 338#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) 339#define kmem_free(_b, _s) umem_free(_b, _s) 340#define kmem_size() (physmem * PAGESIZE) 341#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ 342 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) 343#define kmem_cache_destroy(_c) umem_cache_destroy(_c) 344#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) 345#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) 346#define kmem_debugging() 0 347#define kmem_cache_reap_now(_c) /* nothing */ 348#define kmem_cache_set_move(_c, _cb) /* nothing */ 349#define POINTER_INVALIDATE(_pp) /* nothing */ 350#define POINTER_IS_VALID(_p) 0 351 352typedef umem_cache_t kmem_cache_t; 353 354typedef enum kmem_cbrc { 355 KMEM_CBRC_YES, 356 KMEM_CBRC_NO, 357 KMEM_CBRC_LATER, 358 KMEM_CBRC_DONT_NEED, 359 KMEM_CBRC_DONT_KNOW 360} kmem_cbrc_t; 361 362/* 363 * Task queues 364 */ 365typedef struct taskq taskq_t; 366typedef uintptr_t taskqid_t; 367typedef void (task_func_t)(void *); 368 369#define TASKQ_PREPOPULATE 0x0001 370#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 371#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 372#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ 373#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ 374 375#define TQ_SLEEP KM_SLEEP /* Can block for memory */ 376#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ 377#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 378#define TQ_FRONT 0x08 /* Queue in front */ 379 380extern taskq_t *system_taskq; 381 382extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 383#define taskq_create_proc(a, b, c, d, e, p, f) \ 384 (taskq_create(a, b, c, d, e, f)) 385#define taskq_create_sysdc(a, b, d, e, p, dc, f) \ 386 (taskq_create(a, b, maxclsyspri, d, e, f)) 387extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 388extern void taskq_destroy(taskq_t *); 389extern void taskq_wait(taskq_t *); 390extern int taskq_member(taskq_t *, void *); 391extern void system_taskq_init(void); 392extern void system_taskq_fini(void); 393 394#define taskq_dispatch_safe(tq, func, arg, flags, task) \ 395 taskq_dispatch((tq), (func), (arg), (flags)) 396 397#define XVA_MAPSIZE 3 398#define XVA_MAGIC 0x78766174 399 400/* 401 * vnodes 402 */ 403typedef struct vnode { 404 uint64_t v_size; 405 int v_fd; 406 char *v_path; 407} vnode_t; 408 409#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ 410 411typedef struct xoptattr { 412 timestruc_t xoa_createtime; /* Create time of file */ 413 uint8_t xoa_archive; 414 uint8_t xoa_system; 415 uint8_t xoa_readonly; 416 uint8_t xoa_hidden; 417 uint8_t xoa_nounlink; 418 uint8_t xoa_immutable; 419 uint8_t xoa_appendonly; 420 uint8_t xoa_nodump; 421 uint8_t xoa_settable; 422 uint8_t xoa_opaque; 423 uint8_t xoa_av_quarantined; 424 uint8_t xoa_av_modified; 425 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; 426 uint8_t xoa_reparse; 427 uint8_t xoa_offline; 428 uint8_t xoa_sparse; 429} xoptattr_t; 430 431typedef struct vattr { 432 uint_t va_mask; /* bit-mask of attributes */ 433 u_offset_t va_size; /* file size in bytes */ 434} vattr_t; 435 436 437typedef struct xvattr { 438 vattr_t xva_vattr; /* Embedded vattr structure */ 439 uint32_t xva_magic; /* Magic Number */ 440 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ 441 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ 442 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ 443 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ 444 xoptattr_t xva_xoptattrs; /* Optional attributes */ 445} xvattr_t; 446 447typedef struct vsecattr { 448 uint_t vsa_mask; /* See below */ 449 int vsa_aclcnt; /* ACL entry count */ 450 void *vsa_aclentp; /* pointer to ACL entries */ 451 int vsa_dfaclcnt; /* default ACL entry count */ 452 void *vsa_dfaclentp; /* pointer to default ACL entries */ 453 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ 454} vsecattr_t; 455 456#define AT_TYPE 0x00001 457#define AT_MODE 0x00002 458#define AT_UID 0x00004 459#define AT_GID 0x00008 460#define AT_FSID 0x00010 461#define AT_NODEID 0x00020 462#define AT_NLINK 0x00040 463#define AT_SIZE 0x00080 464#define AT_ATIME 0x00100 465#define AT_MTIME 0x00200 466#define AT_CTIME 0x00400 467#define AT_RDEV 0x00800 468#define AT_BLKSIZE 0x01000 469#define AT_NBLOCKS 0x02000 470#define AT_SEQ 0x08000 471#define AT_XVATTR 0x10000 472 473#define CRCREAT 0 474 475extern int fop_getattr(vnode_t *vp, vattr_t *vap); 476 477#define VOP_CLOSE(vp, f, c, o, cr, ct) 0 478#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 479#define VOP_GETATTR(vp, vap, cr) fop_getattr((vp), (vap)); 480 481#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) 482 483#define VN_RELE(vp) vn_close(vp, 0, NULL, NULL) 484#define VN_RELE_ASYNC(vp, taskq) vn_close(vp, 0, NULL, NULL) 485 486#define vn_lock(vp, type) 487#define VOP_UNLOCK(vp, type) 488#ifdef VFS_LOCK_GIANT 489#undef VFS_LOCK_GIANT 490#endif 491#define VFS_LOCK_GIANT(mp) 0 492#ifdef VFS_UNLOCK_GIANT 493#undef VFS_UNLOCK_GIANT 494#endif 495#define VFS_UNLOCK_GIANT(vfslocked) 496 497extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, 498 int x2, int x3); 499extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, 500 int x2, int x3, vnode_t *vp, int fd); 501extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, 502 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); 503extern void vn_close(vnode_t *vp, int openflag, cred_t *cr, kthread_t *td); 504 505#define vn_remove(path, x1, x2) remove(path) 506#define vn_rename(from, to, seg) rename((from), (to)) 507#define vn_is_readonly(vp) B_FALSE 508 509extern vnode_t *rootdir; 510 511#include <sys/file.h> /* for FREAD, FWRITE, etc */ 512#define FTRUNC O_TRUNC 513 514/* 515 * Random stuff 516 */ 517#define ddi_get_lbolt() (gethrtime() >> 23) 518#define ddi_get_lbolt64() (gethrtime() >> 23) 519#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ 520 521extern void delay(clock_t ticks); 522 523#define gethrestime_sec() time(NULL) 524#define gethrestime(t) \ 525 do {\ 526 (t)->tv_sec = gethrestime_sec();\ 527 (t)->tv_nsec = 0;\ 528 } while (0); 529 530#define max_ncpus 64 531 532#define minclsyspri 60 533#define maxclsyspri 99 534 535#define CPU_SEQID (thr_self() & (max_ncpus - 1)) 536 537#define kcred NULL 538#define CRED() NULL 539 540#ifndef ptob 541#define ptob(x) ((x) * PAGESIZE) 542#endif 543 544extern uint64_t physmem; 545 546extern int highbit(ulong_t i); 547extern int random_get_bytes(uint8_t *ptr, size_t len); 548extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); 549 550extern void kernel_init(int); 551extern void kernel_fini(void); 552 553struct spa; 554extern void nicenum(uint64_t num, char *buf); 555extern void show_pool_stats(struct spa *); 556 557typedef struct callb_cpr { 558 kmutex_t *cc_lockp; 559} callb_cpr_t; 560 561#define CALLB_CPR_INIT(cp, lockp, func, name) { \ 562 (cp)->cc_lockp = lockp; \ 563} 564 565#define CALLB_CPR_SAFE_BEGIN(cp) { \ 566 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 567} 568 569#define CALLB_CPR_SAFE_END(cp, lockp) { \ 570 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 571} 572 573#define CALLB_CPR_EXIT(cp) { \ 574 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ 575 mutex_exit((cp)->cc_lockp); \ 576} 577 578#define zone_dataset_visible(x, y) (1) 579#define INGLOBALZONE(z) (1) 580 581extern char *kmem_asprintf(const char *fmt, ...); 582#define strfree(str) kmem_free((str), strlen(str)+1) 583 584/* 585 * Hostname information 586 */ 587extern struct utsname utsname; 588extern char hw_serial[]; /* for userland-emulated hostid access */ 589extern int ddi_strtoul(const char *str, char **nptr, int base, 590 unsigned long *result); 591 592extern int ddi_strtoull(const char *str, char **nptr, int base, 593 u_longlong_t *result); 594 595/* ZFS Boot Related stuff. */ 596 597struct _buf { 598 intptr_t _fd; 599}; 600 601struct bootstat { 602 uint64_t st_size; 603}; 604 605typedef struct ace_object { 606 uid_t a_who; 607 uint32_t a_access_mask; 608 uint16_t a_flags; 609 uint16_t a_type; 610 uint8_t a_obj_type[16]; 611 uint8_t a_inherit_obj_type[16]; 612} ace_object_t; 613 614 615#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 616#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 617#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 618#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 619 620extern struct _buf *kobj_open_file(char *name); 621extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, 622 unsigned off); 623extern void kobj_close_file(struct _buf *file); 624extern int kobj_get_filesize(struct _buf *file, uint64_t *size); 625extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 626extern int zfs_secpolicy_rename_perms(const char *from, const char *to, 627 cred_t *cr); 628extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 629extern zoneid_t getzoneid(void); 630/* Random compatibility stuff. */ 631#define lbolt (gethrtime() >> 23) 632#define lbolt64 (gethrtime() >> 23) 633 634extern uint64_t physmem; 635 636#define gethrestime_sec() time(NULL) 637 638#define pwrite64(d, p, n, o) pwrite(d, p, n, o) 639#define readdir64(d) readdir(d) 640#define SIGPENDING(td) (0) 641#define root_mount_wait() do { } while (0) 642#define root_mounted() (1) 643 644struct file { 645 void *dummy; 646}; 647 648#define FCREAT O_CREAT 649#define FOFFMAX 0x0 650 651/* SID stuff */ 652typedef struct ksiddomain { 653 uint_t kd_ref; 654 uint_t kd_len; 655 char *kd_name; 656} ksiddomain_t; 657 658ksiddomain_t *ksid_lookupdomain(const char *); 659void ksiddomain_rele(ksiddomain_t *); 660 661typedef uint32_t idmap_rid_t; 662 663#define DDI_SLEEP KM_SLEEP 664#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) (0) 665 666#define SX_SYSINIT(name, lock, desc) 667 668#define SYSCTL_DECL(...) 669#define SYSCTL_NODE(...) 670#define SYSCTL_INT(...) 671#define SYSCTL_UINT(...) 672#define SYSCTL_ULONG(...) 673#define SYSCTL_QUAD(...) 674#define SYSCTL_UQUAD(...) 675#ifdef TUNABLE_INT 676#undef TUNABLE_INT 677#undef TUNABLE_ULONG 678#undef TUNABLE_QUAD 679#endif 680#define TUNABLE_INT(...) 681#define TUNABLE_ULONG(...) 682#define TUNABLE_QUAD(...) 683 684/* Errors */ 685 686#ifndef ERESTART 687#define ERESTART (-1) 688#endif 689 690#ifdef __cplusplus 691} 692#endif 693 694#endif /* _SYS_ZFS_CONTEXT_H */ 695