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, 2015 by Delphix. All rights reserved.
24 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
25 */
26/*
27 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
28 */
29
30#ifndef _SYS_ZFS_CONTEXT_H
31#define _SYS_ZFS_CONTEXT_H
32
33#ifdef __cplusplus
34extern "C" {
35#endif
36
37#define _SYS_MUTEX_H
38#define _SYS_RWLOCK_H
39#define _SYS_CONDVAR_H
40#define _SYS_SYSTM_H
41#define _SYS_T_LOCK_H
42#define _SYS_VNODE_H
43#define _SYS_VFS_H
44#define _SYS_SUNDDI_H
45#define _SYS_CALLB_H
46#ifndef __NetBSD__
47#define _SYS_SCHED_H_
48#else
49#define _SYS_CONDVAR_H_
50#define _SYS_MUTEX_H_
51#define _SYS_RWLOCK_H_
52#endif
53
54#include <solaris.h>
55#include <stdio.h>
56#include <stdlib.h>
57#include <stddef.h>
58#include <stdarg.h>
59#include <fcntl.h>
60#include <unistd.h>
61#include <errno.h>
62#include <string.h>
63#include <strings.h>
64#include <thread.h>
65#include <assert.h>
66#include <limits.h>
67#include <dirent.h>
68#include <time.h>
69#include <math.h>
70#include <umem.h>
71#include <inttypes.h>
72#include <fsshare.h>
73#include <pthread.h>
74#include <sched.h>
75#include <sys/debug.h>
76#include <sys/note.h>
77#include <sys/types.h>
78#include <sys/cred.h>
79#include <sys/atomic.h>
80#include <sys/sysmacros.h>
81#include <sys/bitmap.h>
82#include <sys/resource.h>
83#include <sys/byteorder.h>
84#include <sys/list.h>
85#include <sys/time.h>
86#include <sys/uio.h>
87#include <sys/mntent.h>
88#include <sys/mnttab.h>
89#include <sys/zfs_debug.h>
90#include <sys/sdt.h>
91#include <sys/kstat.h>
92#include <sys/u8_textprep.h>
93#include <sys/kernel.h>
94#include <sys/disk.h>
95#include <sys/sysevent.h>
96#include <sys/sysevent/eventdefs.h>
97#include <sys/sysevent/dev.h>
98#ifndef __NetBSD__
99#include <machine/atomic.h>
100#else
101#include <sys/atomic.h>
102#endif
103#include <sys/debug.h>
104#ifdef illumos
105#include "zfs.h"
106#endif
107
108#define ZFS_EXPORTS_PATH "/etc/zfs/exports"
109
110/*
111 * Debugging
112 */
113
114/*
115 * Note that we are not using the debugging levels.
116 */
117
118#define CE_CONT 0 /* continuation */
119#define CE_NOTE 1 /* notice */
120#define CE_WARN 2 /* warning */
121#define CE_PANIC 3 /* panic */
122#define CE_IGNORE 4 /* print nothing */
123
124/*
125 * ZFS debugging
126 */
127
128#define ZFS_LOG(...) do { } while (0)
129
130typedef u_longlong_t rlim64_t;
131#define RLIM64_INFINITY ((rlim64_t)-3)
132
133#ifdef ZFS_DEBUG
134extern void dprintf_setup(int *argc, char **argv);
135#endif /* ZFS_DEBUG */
136
137extern void cmn_err(int, const char *, ...);
138extern void vcmn_err(int, const char *, __va_list);
139extern void panic(const char *, ...);
140extern void vpanic(const char *, __va_list);
141
142#define fm_panic panic
143
144extern int aok;
145
146/*
147 * DTrace SDT probes have different signatures in userland than they do in
148 * the kernel. If they're being used in kernel code, re-define them out of
149 * existence for their counterparts in libzpool.
150 *
151 * Here's an example of how to use the set-error probes in userland:
152 * zfs$target:::set-error /arg0 == EBUSY/ {stack();}
153 *
154 * Here's an example of how to use DTRACE_PROBE probes in userland:
155 * If there is a probe declared as follows:
156 * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
157 * Then you can use it as follows:
158 * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
159 * {printf("%u %p\n", arg1, arg2);}
160 */
161
162#ifdef DTRACE_PROBE
163#undef DTRACE_PROBE
164#endif /* DTRACE_PROBE */
165#ifdef illumos
166#define DTRACE_PROBE(a) \
167 ZFS_PROBE0(#a)
168#endif
169
170#ifdef DTRACE_PROBE1
171#undef DTRACE_PROBE1
172#endif /* DTRACE_PROBE1 */
173#ifdef illumos
174#define DTRACE_PROBE1(a, b, c) \
175 ZFS_PROBE1(#a, (unsigned long)c)
176#endif
177
178#ifdef DTRACE_PROBE2
179#undef DTRACE_PROBE2
180#endif /* DTRACE_PROBE2 */
181#ifdef illumos
182#define DTRACE_PROBE2(a, b, c, d, e) \
183 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
184#endif
185
186#ifdef DTRACE_PROBE3
187#undef DTRACE_PROBE3
188#endif /* DTRACE_PROBE3 */
189#ifdef illumos
190#define DTRACE_PROBE3(a, b, c, d, e, f, g) \
191 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
192#endif
193
194#ifdef DTRACE_PROBE4
195#undef DTRACE_PROBE4
196#endif /* DTRACE_PROBE4 */
197#ifdef illumos
198#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
199 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
200 (unsigned long)i)
201#endif
202
203#ifdef illumos
204/*
205 * We use the comma operator so that this macro can be used without much
206 * additional code. For example, "return (EINVAL);" becomes
207 * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
208 * twice, so it should not have side effects (e.g. something like:
209 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
210 */
211#define SET_ERROR(err) (ZFS_SET_ERROR(err), err)
212#else /* !illumos */
213
214#define DTRACE_PROBE(a) ((void)0)
215#define DTRACE_PROBE1(a, b, c) ((void)0)
216#define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
217#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
218#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
219
220#define SET_ERROR(err) (err)
221#endif /* !illumos */
222
223/*
224 * Threads
225 */
226#define curthread ((void *)(uintptr_t)thr_self())
227
228#define kpreempt(x) sched_yield()
229
230typedef struct kthread kthread_t;
231
232#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
233 zk_thread_create(func, arg)
234#define thread_exit() thr_exit(NULL)
235#define thread_join(t) panic("libzpool cannot join threads")
236
237#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
238
239/* in libzpool, p0 exists only to have its address taken */
240struct proc {
241 uintptr_t this_is_never_used_dont_dereference_it;
242};
243
244extern struct proc p0;
245#define curproc (&p0)
246
247#define PS_NONE -1
248
249extern kthread_t *zk_thread_create(void (*func)(), void *arg);
250
251#define issig(why) (FALSE)
252#define ISSIG(thr, why) (FALSE)
253
254/*
255 * Mutexes
256 */
257typedef struct kmutex {
258 void *m_owner;
259 boolean_t initialized;
260 mutex_t m_lock;
261} kmutex_t;
262
263#define MUTEX_DEFAULT USYNC_THREAD
264#undef MUTEX_HELD
265#undef MUTEX_NOT_HELD
266#define MUTEX_HELD(m) ((m)->m_owner == curthread)
267#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
268#define _mutex_held(m) pthread_mutex_isowned_np(m)
269
270/*
271 * Argh -- we have to get cheesy here because the kernel and userland
272 * have different signatures for the same routine.
273 */
274//extern int _mutex_init(mutex_t *mp, int type, void *arg);
275//extern int _mutex_destroy(mutex_t *mp);
276//extern int _mutex_owned(mutex_t *mp);
277
278#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
279#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
280#define mutex_owned(mp) zmutex_owned((kmutex_t *)(mp))
281
282extern void zmutex_init(kmutex_t *mp);
283extern void zmutex_destroy(kmutex_t *mp);
284extern int zmutex_owned(kmutex_t *mp);
285extern void mutex_enter(kmutex_t *mp);
286extern void mutex_exit(kmutex_t *mp);
287extern int mutex_tryenter(kmutex_t *mp);
288extern void *mutex_owner(kmutex_t *mp);
289
290/*
291 * RW locks
292 */
293typedef struct krwlock {
294 int rw_count;
295 void *rw_owner;
296 boolean_t initialized;
297 rwlock_t rw_lock;
298} krwlock_t;
299
300typedef int krw_t;
301
302#define RW_READER 0
303#define RW_WRITER 1
304#define RW_DEFAULT USYNC_THREAD
305
306#undef RW_READ_HELD
307#define RW_READ_HELD(x) ((x)->rw_owner == NULL && (x)->rw_count > 0)
308
309#undef RW_WRITE_HELD
310#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread)
311#define RW_LOCK_HELD(x) rw_lock_held(x)
312
313#undef RW_LOCK_HELD
314#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
315
316extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
317extern void rw_destroy(krwlock_t *rwlp);
318extern void rw_enter(krwlock_t *rwlp, krw_t rw);
319extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
320extern int rw_tryupgrade(krwlock_t *rwlp);
321extern void rw_exit(krwlock_t *rwlp);
322extern int rw_lock_held(krwlock_t *rwlp);
323#define rw_downgrade(rwlp) do { } while (0)
324
325extern uid_t crgetuid(cred_t *cr);
326extern uid_t crgetruid(cred_t *cr);
327extern gid_t crgetgid(cred_t *cr);
328extern int crgetngroups(cred_t *cr);
329extern gid_t *crgetgroups(cred_t *cr);
330
331/*
332 * Condition variables
333 */
334typedef cond_t kcondvar_t;
335
336#define CV_DEFAULT USYNC_THREAD
337#define CALLOUT_FLAG_ABSOLUTE 0x2
338
339extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
340extern void cv_destroy(kcondvar_t *cv);
341extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
342extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
343extern clock_t cv_timedwait_hires(kcondvar_t *cvp, kmutex_t *mp, hrtime_t tim,
344 hrtime_t res, int flag);
345extern void cv_signal(kcondvar_t *cv);
346extern void cv_broadcast(kcondvar_t *cv);
347
348/*
349 * Thread-specific data
350 */
351#define tsd_get(k) pthread_getspecific(k)
352#define tsd_set(k, v) pthread_setspecific(k, v)
353#define tsd_create(kp, d) pthread_key_create(kp, d)
354#define tsd_destroy(kp) /* nothing */
355
356/*
357 * Kernel memory
358 */
359#define KM_SLEEP UMEM_NOFAIL
360#define KM_PUSHPAGE KM_SLEEP
361#define KM_NOSLEEP UMEM_DEFAULT
362#define KMC_NODEBUG UMC_NODEBUG
363#define KMC_NOTOUCH 0 /* not needed for userland caches */
364#define KM_NODEBUG 0
365#define kmem_alloc(_s, _f) umem_alloc(_s, _f)
366#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
367#define kmem_free(_b, _s) umem_free(_b, _s)
368#define kmem_size() (physmem * PAGESIZE)
369#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
370 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
371#define kmem_cache_destroy(_c) umem_cache_destroy(_c)
372#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
373#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
374#define kmem_debugging() 0
375#define kmem_cache_reap_now(_c) /* nothing */
376#define kmem_cache_set_move(_c, _cb) /* nothing */
377#define POINTER_INVALIDATE(_pp) /* nothing */
378#define POINTER_IS_VALID(_p) 0
379
380typedef umem_cache_t kmem_cache_t;
381
382typedef enum kmem_cbrc {
383 KMEM_CBRC_YES,
384 KMEM_CBRC_NO,
385 KMEM_CBRC_LATER,
386 KMEM_CBRC_DONT_NEED,
387 KMEM_CBRC_DONT_KNOW
388} kmem_cbrc_t;
389
390/*
391 * Task queues
392 */
393typedef struct taskq taskq_t;
394typedef uintptr_t taskqid_t;
395typedef void (task_func_t)(void *);
396
397typedef struct taskq_ent {
398 struct taskq_ent *tqent_next;
399 struct taskq_ent *tqent_prev;
400 task_func_t *tqent_func;
401 void *tqent_arg;
402 uintptr_t tqent_flags;
403} taskq_ent_t;
404
405#define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */
406
407#define TASKQ_PREPOPULATE 0x0001
408#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
409#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
410#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
411#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
412
413#define TQ_SLEEP KM_SLEEP /* Can block for memory */
414#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
415#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
416#define TQ_FRONT 0x08 /* Queue in front */
417
418
419extern taskq_t *system_taskq;
420
421extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
422#define taskq_create_proc(a, b, c, d, e, p, f) \
423 (taskq_create(a, b, c, d, e, f))
424#define taskq_create_sysdc(a, b, d, e, p, dc, f) \
425 (taskq_create(a, b, maxclsyspri, d, e, f))
426extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
427extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t,
428 taskq_ent_t *);
429extern void taskq_destroy(taskq_t *);
430extern void taskq_wait(taskq_t *);
431extern int taskq_member(taskq_t *, void *);
432extern void system_taskq_init(void);
433extern void system_taskq_fini(void);
434
435#define taskq_dispatch_safe(tq, func, arg, flags, task) \
436 taskq_dispatch((tq), (func), (arg), (flags))
437
438#define XVA_MAPSIZE 3
439#define XVA_MAGIC 0x78766174
440
441/*
442 * vnodes
443 */
444typedef struct vnode {
445 uint64_t v_size;
446 int v_fd;
447 char *v_path;
448 int v_dump_fd;
449} vnode_t;
450
451extern char *vn_dumpdir;
452#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
453
454typedef struct xoptattr {
455 timestruc_t xoa_createtime; /* Create time of file */
456 uint8_t xoa_archive;
457 uint8_t xoa_system;
458 uint8_t xoa_readonly;
459 uint8_t xoa_hidden;
460 uint8_t xoa_nounlink;
461 uint8_t xoa_immutable;
462 uint8_t xoa_appendonly;
463 uint8_t xoa_nodump;
464 uint8_t xoa_settable;
465 uint8_t xoa_opaque;
466 uint8_t xoa_av_quarantined;
467 uint8_t xoa_av_modified;
468 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
469 uint8_t xoa_reparse;
470 uint8_t xoa_offline;
471 uint8_t xoa_sparse;
472} xoptattr_t;
473
474typedef struct vattr {
475 uint_t va_mask; /* bit-mask of attributes */
476 u_offset_t va_size; /* file size in bytes */
477} vattr_t;
478
479
480typedef struct xvattr {
481 vattr_t xva_vattr; /* Embedded vattr structure */
482 uint32_t xva_magic; /* Magic Number */
483 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
484 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
485 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
486 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
487 xoptattr_t xva_xoptattrs; /* Optional attributes */
488} xvattr_t;
489
490typedef struct vsecattr {
491 uint_t vsa_mask; /* See below */
492 int vsa_aclcnt; /* ACL entry count */
493 void *vsa_aclentp; /* pointer to ACL entries */
494 int vsa_dfaclcnt; /* default ACL entry count */
495 void *vsa_dfaclentp; /* pointer to default ACL entries */
496 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
497} vsecattr_t;
498
499#define AT_TYPE 0x00001
500#define AT_MODE 0x00002
501#define AT_UID 0x00004
502#define AT_GID 0x00008
503#define AT_FSID 0x00010
504#define AT_NODEID 0x00020
505#define AT_NLINK 0x00040
506#define AT_SIZE 0x00080
507#define AT_ATIME 0x00100
508#define AT_MTIME 0x00200
509#define AT_CTIME 0x00400
510#define AT_RDEV 0x00800
511#define AT_BLKSIZE 0x01000
512#define AT_NBLOCKS 0x02000
513#define AT_SEQ 0x08000
514#define AT_XVATTR 0x10000
515
516#define CRCREAT 0
517
518extern int fop_getattr(vnode_t *vp, vattr_t *vap);
519
520#define VOP_CLOSE(vp, f, c, o, cr, ct) 0
521#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
522#ifndef __NetBSD__
523#define VOP_GETATTR(vp, vap, cr) fop_getattr((vp), (vap));
524#else
525#define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
526#endif
527
528#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
529
530#define VN_RELE(vp) vn_close(vp, 0, NULL, NULL)
531#define VN_RELE_ASYNC(vp, taskq) vn_close(vp, 0, NULL, NULL)
532
533#define vn_lock(vp, type)
534#define VOP_UNLOCK(vp, type)
535
536extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
537 int x2, int x3);
538extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
539 int x2, int x3, vnode_t *vp, int fd);
540extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
541 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
542extern void vn_close(vnode_t *vp, int openflag, cred_t *cr, kthread_t *td);
543
544#define vn_remove(path, x1, x2) remove(path)
545#define vn_rename(from, to, seg) rename((from), (to))
546#define vn_is_readonly(vp) B_FALSE
547
548extern vnode_t *rootdir;
549
550#include <sys/file.h> /* for FREAD, FWRITE, etc */
551#define FTRUNC O_TRUNC
552
553/*
554 * Random stuff
555 */
556#define ddi_get_lbolt() (gethrtime() >> 23)
557#define ddi_get_lbolt64() (gethrtime() >> 23)
558#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
559
560extern void delay(clock_t ticks);
561
562#define SEC_TO_TICK(sec) ((sec) * hz)
563#define NSEC_TO_TICK(nsec) ((nsec) / (NANOSEC / hz))
564
565#define gethrestime_sec() time(NULL)
566#define gethrestime(t) \
567 do {\
568 (t)->tv_sec = gethrestime_sec();\
569 (t)->tv_nsec = 0;\
570 } while (0);
571
572#define max_ncpus 64
573
574#define minclsyspri 60
575#define maxclsyspri 99
576
577#define CPU_SEQID (thr_self() & (max_ncpus - 1))
578
579#define kcred NULL
580#define CRED() NULL
581
582#ifndef ptob
583#define ptob(x) ((x) * PAGESIZE)
584#endif
585
586extern uint64_t physmem;
587
588#ifndef __NetBSD__
589extern int highbit64(uint64_t i);
590#endif
591extern int random_get_bytes(uint8_t *ptr, size_t len);
592extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
593
594extern void kernel_init(int);
595extern void kernel_fini(void);
596
597struct spa;
598extern void nicenum(uint64_t num, char *buf);
599extern void show_pool_stats(struct spa *);
600
601typedef struct callb_cpr {
602 kmutex_t *cc_lockp;
603} callb_cpr_t;
604
605#define CALLB_CPR_INIT(cp, lockp, func, name) { \
606 (cp)->cc_lockp = lockp; \
607}
608
609#define CALLB_CPR_SAFE_BEGIN(cp) { \
610 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
611}
612
613#define CALLB_CPR_SAFE_END(cp, lockp) { \
614 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
615}
616
617#define CALLB_CPR_EXIT(cp) { \
618 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
619 mutex_exit((cp)->cc_lockp); \
620}
621
622#define zone_dataset_visible(x, y) (1)
623#define INGLOBALZONE(z) (1)
624
625extern char *kmem_asprintf(const char *fmt, ...);
626#define strfree(str) kmem_free((str), strlen(str) + 1)
627
628/*
629 * Hostname information
630 */
631extern struct utsname utsname;
632extern char hw_serial[]; /* for userland-emulated hostid access */
633extern int ddi_strtoul(const char *str, char **nptr, int base,
634 unsigned long *result);
635
636extern int ddi_strtoull(const char *str, char **nptr, int base,
637 u_longlong_t *result);
638
639/* ZFS Boot Related stuff. */
640
641struct _buf {
642 intptr_t _fd;
643};
644
645struct bootstat {
646 uint64_t st_size;
647};
648
649typedef struct ace_object {
650 uid_t a_who;
651 uint32_t a_access_mask;
652 uint16_t a_flags;
653 uint16_t a_type;
654 uint8_t a_obj_type[16];
655 uint8_t a_inherit_obj_type[16];
656} ace_object_t;
657
658
659#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
660#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
661#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
662#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
663
664extern struct _buf *kobj_open_file(char *name);
665extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
666 unsigned off);
667extern void kobj_close_file(struct _buf *file);
668extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
669extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
670extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
671 cred_t *cr);
672extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
673#ifndef __NetBSD__
674extern zoneid_t getzoneid(void);
675#endif
676/* Random compatibility stuff. */
677#define pwrite64(d, p, n, o) pwrite(d, p, n, o)
678#define readdir64(d) readdir(d)
679#define SIGPENDING(td) (0)
680#define root_mount_wait() do { } while (0)
681#define root_mounted() (1)
682
683struct file {
684 void *dummy;
685};
686
687#define FCREAT O_CREAT
688#define FOFFMAX 0x0
689
690/* SID stuff */
691typedef struct ksiddomain {
692 uint_t kd_ref;
693 uint_t kd_len;
694 char *kd_name;
695} ksiddomain_t;
696
697ksiddomain_t *ksid_lookupdomain(const char *);
698void ksiddomain_rele(ksiddomain_t *);
699
700typedef uint32_t idmap_rid_t;
701
702#define DDI_SLEEP KM_SLEEP
703#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) (0)
704
705#define SX_SYSINIT(name, lock, desc)
706
707#define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, \
708 intptr_t arg2, struct sysctl_req *req
709
710/*
711 * This describes the access space for a sysctl request. This is needed
712 * so that we can use the interface from the kernel or from user-space.
713 */
714struct sysctl_req {
715 struct thread *td; /* used for access checking */
716 int lock; /* wiring state */
717 void *oldptr;
718 size_t oldlen;
719 size_t oldidx;
720 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
721 void *newptr;
722 size_t newlen;
723 size_t newidx;
724 int (*newfunc)(struct sysctl_req *, void *, size_t);
725 size_t validlen;
726 int flags;
727};
728
729SLIST_HEAD(sysctl_oid_list, sysctl_oid);
730
731/*
732 * This describes one "oid" in the MIB tree. Potentially more nodes can
733 * be hidden behind it, expanded by the handler.
734 */
735struct sysctl_oid {
736 struct sysctl_oid_list *oid_parent;
737 SLIST_ENTRY(sysctl_oid) oid_link;
738 int oid_number;
739 u_int oid_kind;
740 void *oid_arg1;
741 intptr_t oid_arg2;
742 const char *oid_name;
743 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
744 const char *oid_fmt;
745 int oid_refcnt;
746 u_int oid_running;
747 const char *oid_descr;
748};
749
750#define SYSCTL_DECL(...)
751#define SYSCTL_NODE(...)
752#define SYSCTL_INT(...)
753#define SYSCTL_UINT(...)
754#define SYSCTL_ULONG(...)
755#define SYSCTL_PROC(...)
756#define SYSCTL_QUAD(...)
757#define SYSCTL_UQUAD(...)
758#ifdef TUNABLE_INT
759#undef TUNABLE_INT
760#undef TUNABLE_ULONG
761#undef TUNABLE_QUAD
762#endif
763#define TUNABLE_INT(...)
764#define TUNABLE_ULONG(...)
765#define TUNABLE_QUAD(...)
766
767int sysctl_handle_64(SYSCTL_HANDLER_ARGS);
768
769/* Errors */
770
771#ifndef ERESTART
772#define ERESTART (-1)
773#endif
774
775#if defined(illumos) || defined(__NetBSD__)
776/*
777 * Cyclic information
778 */
779extern kmutex_t cpu_lock;
780
781typedef uintptr_t cyclic_id_t;
782typedef uint16_t cyc_level_t;
783typedef void (*cyc_func_t)(void *);
784
785#define CY_LOW_LEVEL 0
786#define CY_INFINITY INT64_MAX
787#define CYCLIC_NONE ((cyclic_id_t)0)
788
789typedef struct cyc_time {
790 hrtime_t cyt_when;
791 hrtime_t cyt_interval;
792} cyc_time_t;
793
794typedef struct cyc_handler {
795 cyc_func_t cyh_func;
796 void *cyh_arg;
797 cyc_level_t cyh_level;
798} cyc_handler_t;
799
800extern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
801extern void cyclic_remove(cyclic_id_t);
802extern int cyclic_reprogram(cyclic_id_t, hrtime_t);
803#endif /* illumos */
804
805#ifdef illumos
806/*
807 * Buf structure
808 */
809#define B_BUSY 0x0001
810#define B_DONE 0x0002
811#define B_ERROR 0x0004
812#define B_READ 0x0040 /* read when I/O occurs */
813#define B_WRITE 0x0100 /* non-read pseudo-flag */
814
815typedef struct buf {
816 int b_flags;
817 size_t b_bcount;
818 union {
819 caddr_t b_addr;
820 } b_un;
821
822 lldaddr_t _b_blkno;
823#define b_lblkno _b_blkno._f
824 size_t b_resid;
825 size_t b_bufsize;
826 int (*b_iodone)(struct buf *);
827 int b_error;
828 void *b_private;
829} buf_t;
830
831extern void bioinit(buf_t *);
832extern void biodone(buf_t *);
833extern void bioerror(buf_t *, int);
834extern int geterror(buf_t *);
835#endif
836
837#ifdef __cplusplus
838}
839#endif
840
841#endif /* _SYS_ZFS_CONTEXT_H */
842