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 2011 Nexenta Systems, Inc. All rights reserved.
24 * Copyright (c) 2012 by Delphix. All rights reserved.
25 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
26 */
27
28 #ifndef _SYS_ZFS_CONTEXT_H
29 #define _SYS_ZFS_CONTEXT_H
30
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34
35 #define _SYS_MUTEX_H
36 #define _SYS_RWLOCK_H
37 #define _SYS_CONDVAR_H
38 #define _SYS_SYSTM_H
39 #define _SYS_DEBUG_H
40 #define _SYS_T_LOCK_H
41 #define _SYS_VNODE_H
42 #define _SYS_VFS_H
43 #define _SYS_SUNDDI_H
44 #define _SYS_CALLB_H
45
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 <synch.h>
56 #include <thread.h>
57 #include <assert.h>
58 #include <alloca.h>
59 #include <umem.h>
60 #include <limits.h>
61 #include <atomic.h>
62 #include <dirent.h>
63 #include <time.h>
64 #include <libsysevent.h>
65 #include <sys/note.h>
66 #include <sys/types.h>
67 #include <sys/cred.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/uio.h>
74 #include <sys/zfs_debug.h>
75 #include <sys/sdt.h>
76 #include <sys/kstat.h>
77 #include <sys/u8_textprep.h>
78 #include <sys/sysevent/eventdefs.h>
79 #include <sys/sysevent/dev.h>
80 #include <sys/sunddi.h>
81
82 /*
83 * Debugging
84 */
85
86 /*
87 * Note that we are not using the debugging levels.
88 */
89
90 #define CE_CONT 0 /* continuation */
91 #define CE_NOTE 1 /* notice */
92 #define CE_WARN 2 /* warning */
93 #define CE_PANIC 3 /* panic */
94 #define CE_IGNORE 4 /* print nothing */
95
96 /*
97 * ZFS debugging
98 */
99
100 #ifdef ZFS_DEBUG
101 extern void dprintf_setup(int *argc, char **argv);
102 #endif /* ZFS_DEBUG */
103
104 extern void cmn_err(int, const char *, ...);
105 extern void vcmn_err(int, const char *, __va_list);
106 extern void panic(const char *, ...);
107 extern void vpanic(const char *, __va_list);
108
109 #define fm_panic panic
110
111 extern int aok;
112
113 /* This definition is copied from assert.h. */
114 #if defined(__STDC__)
115 #if __STDC_VERSION__ - 0 >= 199901L
116 #define zverify(EX) (void)((EX) || (aok) || \
117 (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
118 #else
119 #define zverify(EX) (void)((EX) || (aok) || \
120 (__assert(#EX, __FILE__, __LINE__), 0))
121 #endif /* __STDC_VERSION__ - 0 >= 199901L */
122 #else
123 #define zverify(EX) (void)((EX) || (aok) || \
124 (_assert("EX", __FILE__, __LINE__), 0))
125 #endif /* __STDC__ */
126
127
128 #define VERIFY zverify
129 #define ASSERT zverify
130 #undef assert
131 #define assert zverify
132
133 extern void __assert(const char *, const char *, int);
134
135 #ifdef lint
136 #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0)
137 #else
138 /* BEGIN CSTYLED */
139 #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
140 const TYPE __left = (TYPE)(LEFT); \
141 const TYPE __right = (TYPE)(RIGHT); \
142 if (!(__left OP __right) && (!aok)) { \
143 char *__buf = alloca(256); \
144 (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
145 #LEFT, #OP, #RIGHT, \
146 (u_longlong_t)__left, #OP, (u_longlong_t)__right); \
147 __assert(__buf, __FILE__, __LINE__); \
148 } \
149 _NOTE(CONSTCOND) } while (0)
150 /* END CSTYLED */
151 #endif /* lint */
152
153 #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
154 #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
155 #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
156
157 #ifdef NDEBUG
158 #define ASSERT3S(x, y, z) ((void)0)
159 #define ASSERT3U(x, y, z) ((void)0)
160 #define ASSERT3P(x, y, z) ((void)0)
161 #else
162 #define ASSERT3S(x, y, z) VERIFY3S(x, y, z)
163 #define ASSERT3U(x, y, z) VERIFY3U(x, y, z)
164 #define ASSERT3P(x, y, z) VERIFY3P(x, y, z)
165 #endif
166
167 /*
168 * DTrace SDT probes have different signatures in userland than they do in
169 * kernel. If they're being used in kernel code, re-define them out of
170 * existence for their counterparts in libzpool.
171 */
172
173 #ifdef DTRACE_PROBE
174 #undef DTRACE_PROBE
175 #define DTRACE_PROBE(a) ((void)0)
176 #endif /* DTRACE_PROBE */
177
178 #ifdef DTRACE_PROBE1
179 #undef DTRACE_PROBE1
180 #define DTRACE_PROBE1(a, b, c) ((void)0)
181 #endif /* DTRACE_PROBE1 */
182
183 #ifdef DTRACE_PROBE2
184 #undef DTRACE_PROBE2
185 #define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
186 #endif /* DTRACE_PROBE2 */
187
188 #ifdef DTRACE_PROBE3
189 #undef DTRACE_PROBE3
190 #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
191 #endif /* DTRACE_PROBE3 */
192
193 #ifdef DTRACE_PROBE4
194 #undef DTRACE_PROBE4
195 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
196 #endif /* DTRACE_PROBE4 */
197
198 /*
199 * Threads
200 */
201 #define curthread ((void *)(uintptr_t)thr_self())
202
203 typedef struct kthread kthread_t;
204
205 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
206 zk_thread_create(func, arg)
207 #define thread_exit() thr_exit(NULL)
208 #define thread_join(t) panic("libzpool cannot join threads")
209
210 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
211
212 /* in libzpool, p0 exists only to have its address taken */
213 struct proc {
214 uintptr_t this_is_never_used_dont_dereference_it;
215 };
216
217 extern struct proc p0;
218 #define curproc (&p0)
219
220 #define PS_NONE -1
221
222 extern kthread_t *zk_thread_create(void (*func)(), void *arg);
223
224 #define issig(why) (FALSE)
225 #define ISSIG(thr, why) (FALSE)
226
227 /*
228 * Mutexes
229 */
230 typedef struct kmutex {
231 void *m_owner;
232 boolean_t initialized;
233 mutex_t m_lock;
234 } kmutex_t;
235
236 #define MUTEX_DEFAULT USYNC_THREAD
237 #undef MUTEX_HELD
238 #undef MUTEX_NOT_HELD
239 #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock)
240 #define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
241
242 /*
243 * Argh -- we have to get cheesy here because the kernel and userland
244 * have different signatures for the same routine.
245 */
246 extern int _mutex_init(mutex_t *mp, int type, void *arg);
247 extern int _mutex_destroy(mutex_t *mp);
248
249 #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
250 #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
251
252 extern void zmutex_init(kmutex_t *mp);
253 extern void zmutex_destroy(kmutex_t *mp);
254 extern void mutex_enter(kmutex_t *mp);
255 extern void mutex_exit(kmutex_t *mp);
256 extern int mutex_tryenter(kmutex_t *mp);
257 extern void *mutex_owner(kmutex_t *mp);
258
259 /*
260 * RW locks
261 */
262 typedef struct krwlock {
263 void *rw_owner;
264 boolean_t initialized;
265 rwlock_t rw_lock;
266 } krwlock_t;
267
268 typedef int krw_t;
269
270 #define RW_READER 0
271 #define RW_WRITER 1
272 #define RW_DEFAULT USYNC_THREAD
273
274 #undef RW_READ_HELD
275 #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock)
276
277 #undef RW_WRITE_HELD
278 #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock)
279
280 extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
281 extern void rw_destroy(krwlock_t *rwlp);
282 extern void rw_enter(krwlock_t *rwlp, krw_t rw);
283 extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
284 extern int rw_tryupgrade(krwlock_t *rwlp);
285 extern void rw_exit(krwlock_t *rwlp);
286 #define rw_downgrade(rwlp) do { } while (0)
287
288 extern uid_t crgetuid(cred_t *cr);
289 extern gid_t crgetgid(cred_t *cr);
290 extern int crgetngroups(cred_t *cr);
291 extern gid_t *crgetgroups(cred_t *cr);
292
293 /*
294 * Condition variables
295 */
296 typedef cond_t kcondvar_t;
297
298 #define CV_DEFAULT USYNC_THREAD
299
300 extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
301 extern void cv_destroy(kcondvar_t *cv);
302 extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
303 extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
304 extern void cv_signal(kcondvar_t *cv);
305 extern void cv_broadcast(kcondvar_t *cv);
306
307 /*
308 * kstat creation, installation and deletion
309 */
310 extern kstat_t *kstat_create(char *, int,
311 char *, char *, uchar_t, ulong_t, uchar_t);
312 extern void kstat_install(kstat_t *);
313 extern void kstat_delete(kstat_t *);
314
315 /*
316 * Kernel memory
317 */
318 #define KM_SLEEP UMEM_NOFAIL
319 #define KM_PUSHPAGE KM_SLEEP
320 #define KM_NOSLEEP UMEM_DEFAULT
321 #define KMC_NODEBUG UMC_NODEBUG
322 #define KMC_NOTOUCH 0 /* not needed for userland caches */
323 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
324 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
325 #define kmem_free(_b, _s) umem_free(_b, _s)
326 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
327 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
328 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
329 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
330 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
331 #define kmem_debugging() 0
332 #define kmem_cache_reap_now(_c) /* nothing */
333 #define kmem_cache_set_move(_c, _cb) /* nothing */
334 #define vmem_qcache_reap(_v) /* nothing */
335 #define POINTER_INVALIDATE(_pp) /* nothing */
336 #define POINTER_IS_VALID(_p) 0
337
338 extern vmem_t *zio_arena;
339
340 typedef umem_cache_t kmem_cache_t;
341
342 typedef enum kmem_cbrc {
343 KMEM_CBRC_YES,
344 KMEM_CBRC_NO,
345 KMEM_CBRC_LATER,
346 KMEM_CBRC_DONT_NEED,
347 KMEM_CBRC_DONT_KNOW
348 } kmem_cbrc_t;
349
350 /*
351 * Task queues
352 */
353 typedef struct taskq taskq_t;
354 typedef uintptr_t taskqid_t;
355 typedef void (task_func_t)(void *);
356
357 typedef struct taskq_ent {
358 struct taskq_ent *tqent_next;
359 struct taskq_ent *tqent_prev;
360 task_func_t *tqent_func;
361 void *tqent_arg;
362 uintptr_t tqent_flags;
363 } taskq_ent_t;
364
365 #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
366
367 #define TASKQ_PREPOPULATE 0x0001
368 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
369 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
370 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
371 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
372
373 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
374 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
375 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
376 #define TQ_FRONT 0x08 /* Queue in front */
377
378
379 extern taskq_t *system_taskq;
380
381 extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
382 #define taskq_create_proc(a, b, c, d, e, p, f) \
383 (taskq_create(a, b, c, d, e, f))
384 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
385 (taskq_create(a, b, maxclsyspri, d, e, f))
386 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
387 extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t,
388 taskq_ent_t *);
389 extern void taskq_destroy(taskq_t *);
390 extern void taskq_wait(taskq_t *);
391 extern int taskq_member(taskq_t *, void *);
392 extern void system_taskq_init(void);
393 extern void system_taskq_fini(void);
394
395 #define XVA_MAPSIZE 3
396 #define XVA_MAGIC 0x78766174
397
398 /*
399 * vnodes
400 */
401 typedef struct vnode {
402 uint64_t v_size;
403 int v_fd;
404 char *v_path;
405 } vnode_t;
406
407 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
408
409 typedef struct xoptattr {
410 timestruc_t xoa_createtime; /* Create time of file */
411 uint8_t xoa_archive;
412 uint8_t xoa_system;
413 uint8_t xoa_readonly;
414 uint8_t xoa_hidden;
415 uint8_t xoa_nounlink;
416 uint8_t xoa_immutable;
417 uint8_t xoa_appendonly;
418 uint8_t xoa_nodump;
419 uint8_t xoa_settable;
420 uint8_t xoa_opaque;
421 uint8_t xoa_av_quarantined;
422 uint8_t xoa_av_modified;
423 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
424 uint8_t xoa_reparse;
425 uint8_t xoa_offline;
426 uint8_t xoa_sparse;
427 } xoptattr_t;
428
429 typedef struct vattr {
430 uint_t va_mask; /* bit-mask of attributes */
431 u_offset_t va_size; /* file size in bytes */
432 } vattr_t;
433
434
435 typedef struct xvattr {
436 vattr_t xva_vattr; /* Embedded vattr structure */
437 uint32_t xva_magic; /* Magic Number */
438 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
439 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
440 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
441 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
442 xoptattr_t xva_xoptattrs; /* Optional attributes */
443 } xvattr_t;
444
445 typedef struct vsecattr {
446 uint_t vsa_mask; /* See below */
447 int vsa_aclcnt; /* ACL entry count */
448 void *vsa_aclentp; /* pointer to ACL entries */
449 int vsa_dfaclcnt; /* default ACL entry count */
450 void *vsa_dfaclentp; /* pointer to default ACL entries */
451 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
452 } vsecattr_t;
453
454 #define AT_TYPE 0x00001
455 #define AT_MODE 0x00002
456 #define AT_UID 0x00004
457 #define AT_GID 0x00008
458 #define AT_FSID 0x00010
459 #define AT_NODEID 0x00020
460 #define AT_NLINK 0x00040
461 #define AT_SIZE 0x00080
462 #define AT_ATIME 0x00100
463 #define AT_MTIME 0x00200
464 #define AT_CTIME 0x00400
465 #define AT_RDEV 0x00800
466 #define AT_BLKSIZE 0x01000
467 #define AT_NBLOCKS 0x02000
468 #define AT_SEQ 0x08000
469 #define AT_XVATTR 0x10000
470
471 #define CRCREAT 0
472
473 extern int fop_getattr(vnode_t *vp, vattr_t *vap);
474
475 #define VOP_CLOSE(vp, f, c, o, cr, ct) 0
476 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
477 #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
478
479 #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
480
481 #define VN_RELE(vp) vn_close(vp)
482
483 extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
484 int x2, int x3);
485 extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
486 int x2, int x3, vnode_t *vp, int fd);
487 extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
488 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
489 extern void vn_close(vnode_t *vp);
490
491 #define vn_remove(path, x1, x2) remove(path)
492 #define vn_rename(from, to, seg) rename((from), (to))
493 #define vn_is_readonly(vp) B_FALSE
494
495 extern vnode_t *rootdir;
496
497 #include <sys/file.h> /* for FREAD, FWRITE, etc */
498
499 /*
500 * Random stuff
501 */
502 #define ddi_get_lbolt() (gethrtime() >> 23)
503 #define ddi_get_lbolt64() (gethrtime() >> 23)
504 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
505
506 extern void delay(clock_t ticks);
507
508 #define gethrestime_sec() time(NULL)
509 #define gethrestime(t) \
510 do {\
511 (t)->tv_sec = gethrestime_sec();\
512 (t)->tv_nsec = 0;\
513 } while (0);
514
515 #define max_ncpus 64
516
517 #define minclsyspri 60
518 #define maxclsyspri 99
519
520 #define CPU_SEQID (thr_self() & (max_ncpus - 1))
521
522 #define kcred NULL
523 #define CRED() NULL
524
525 #define ptob(x) ((x) * PAGESIZE)
526
527 extern uint64_t physmem;
528
529 extern int highbit(ulong_t i);
530 extern int random_get_bytes(uint8_t *ptr, size_t len);
531 extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
532
533 extern void kernel_init(int);
534 extern void kernel_fini(void);
535
536 struct spa;
537 extern void nicenum(uint64_t num, char *buf);
538 extern void show_pool_stats(struct spa *);
539
540 typedef struct callb_cpr {
541 kmutex_t *cc_lockp;
542 } callb_cpr_t;
543
544 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
545 (cp)->cc_lockp = lockp; \
546 }
547
548 #define CALLB_CPR_SAFE_BEGIN(cp) { \
549 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
550 }
551
552 #define CALLB_CPR_SAFE_END(cp, lockp) { \
553 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
554 }
555
556 #define CALLB_CPR_EXIT(cp) { \
557 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
558 mutex_exit((cp)->cc_lockp); \
559 }
560
561 #define zone_dataset_visible(x, y) (1)
562 #define INGLOBALZONE(z) (1)
563
564 extern char *kmem_asprintf(const char *fmt, ...);
565 #define strfree(str) kmem_free((str), strlen(str)+1)
566
567 /*
568 * Hostname information
569 */
570 extern char hw_serial[]; /* for userland-emulated hostid access */
571 extern int ddi_strtoul(const char *str, char **nptr, int base,
572 unsigned long *result);
573
574 extern int ddi_strtoull(const char *str, char **nptr, int base,
575 u_longlong_t *result);
576
577 /* ZFS Boot Related stuff. */
578
579 struct _buf {
580 intptr_t _fd;
581 };
582
583 struct bootstat {
584 uint64_t st_size;
585 };
586
587 typedef struct ace_object {
588 uid_t a_who;
589 uint32_t a_access_mask;
590 uint16_t a_flags;
591 uint16_t a_type;
592 uint8_t a_obj_type[16];
593 uint8_t a_inherit_obj_type[16];
594 } ace_object_t;
595
596
597 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
598 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
599 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
600 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
601
602 extern struct _buf *kobj_open_file(char *name);
603 extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
604 unsigned off);
605 extern void kobj_close_file(struct _buf *file);
606 extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
607 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
608 extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
609 cred_t *cr);
610 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
611 extern zoneid_t getzoneid(void);
612
613 /* SID stuff */
614 typedef struct ksiddomain {
615 uint_t kd_ref;
616 uint_t kd_len;
617 char *kd_name;
618 } ksiddomain_t;
619
620 ksiddomain_t *ksid_lookupdomain(const char *);
621 void ksiddomain_rele(ksiddomain_t *);
622
623 #define DDI_SLEEP KM_SLEEP
624 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
625 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
626
627 #ifdef __cplusplus
628 }
629 #endif
630
631 #endif /* _SYS_ZFS_CONTEXT_H */