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) 2013 by Delphix. All rights reserved.
24 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
25 */
26
27#ifndef _SYS_ZFS_CONTEXT_H
28#define _SYS_ZFS_CONTEXT_H
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34#define _SYS_MUTEX_H
35#define _SYS_RWLOCK_H
36#define _SYS_CONDVAR_H
37#define _SYS_SYSTM_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 <pthread.h>
65#include <sys/debug.h>
66#include <sys/note.h>
67#include <sys/types.h>
68#include <sys/cred.h>
69#include <sys/atomic.h>
70#include <sys/sysmacros.h>
71#include <sys/bitmap.h>
72#include <sys/resource.h>
73#include <sys/byteorder.h>
74#include <sys/list.h>
75#include <sys/time.h>
76#include <sys/uio.h>
77#include <sys/mntent.h>
78#include <sys/mnttab.h>
79#include <sys/zfs_debug.h>
80#include <sys/sdt.h>
81#include <sys/kstat.h>
82#include <sys/u8_textprep.h>
83#include <sys/kernel.h>
84#include <sys/disk.h>
85#include <sys/sysevent.h>
86#include <sys/sysevent/eventdefs.h>
87#include <sys/sysevent/dev.h>
88#include <machine/atomic.h>
89#include <sys/debug.h>
90#ifdef illumos
91#include "zfs.h"
92#endif
93
94#define ZFS_EXPORTS_PATH "/etc/zfs/exports"
95
96/*
97 * Debugging
98 */
99
100/*
101 * Note that we are not using the debugging levels.
102 */
103
104#define CE_CONT 0 /* continuation */
105#define CE_NOTE 1 /* notice */
106#define CE_WARN 2 /* warning */
107#define CE_PANIC 3 /* panic */
108#define CE_IGNORE 4 /* print nothing */
109
110/*
111 * ZFS debugging
112 */
113
114#define ZFS_LOG(...) do { } while (0)
115
116typedef u_longlong_t rlim64_t;
117#define RLIM64_INFINITY ((rlim64_t)-3)
118
119#ifdef ZFS_DEBUG
120extern void dprintf_setup(int *argc, char **argv);
121#endif /* ZFS_DEBUG */
122
123extern void cmn_err(int, const char *, ...);
124extern void vcmn_err(int, const char *, __va_list);
125extern void panic(const char *, ...);
126extern void vpanic(const char *, __va_list);
127
128#define fm_panic panic
129
130extern int aok;
131
132/*
133 * DTrace SDT probes have different signatures in userland than they do in
134 * kernel. If they're being used in kernel code, re-define them out of
135 * existence for their counterparts in libzpool.
136 */
137
138#ifdef DTRACE_PROBE
139#undef DTRACE_PROBE
140#endif /* DTRACE_PROBE */
141#ifdef illumos
142#define DTRACE_PROBE(a) \
143 ZFS_PROBE0(#a)
144#endif
145
146#ifdef DTRACE_PROBE1
147#undef DTRACE_PROBE1
148#endif /* DTRACE_PROBE1 */
149#ifdef illumos
150#define DTRACE_PROBE1(a, b, c) \
151 ZFS_PROBE1(#a, (unsigned long)c)
152#endif
153
154#ifdef DTRACE_PROBE2
155#undef DTRACE_PROBE2
156#endif /* DTRACE_PROBE2 */
157#ifdef illumos
158#define DTRACE_PROBE2(a, b, c, d, e) \
159 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
160#endif
161
162#ifdef DTRACE_PROBE3
163#undef DTRACE_PROBE3
164#endif /* DTRACE_PROBE3 */
165#ifdef illumos
166#define DTRACE_PROBE3(a, b, c, d, e, f, g) \
167 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
168#endif
169
170#ifdef DTRACE_PROBE4
171#undef DTRACE_PROBE4
172#endif /* DTRACE_PROBE4 */
173#ifdef illumos
174#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
175 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
176 (unsigned long)i)
177#endif
178
179#ifdef illumos
180/*
181 * We use the comma operator so that this macro can be used without much
182 * additional code. For example, "return (EINVAL);" becomes
183 * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
184 * twice, so it should not have side effects (e.g. something like:
185 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
186 */
187#define SET_ERROR(err) (ZFS_SET_ERROR(err), err)
188#else /* !illumos */
189
190#define DTRACE_PROBE(a) ((void)0)
191#define DTRACE_PROBE1(a, b, c) ((void)0)
192#define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
193#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
194#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
195
196#define SET_ERROR(err) (err)
197#endif /* !illumos */
198
199/*
200 * Threads
201 */
202#define curthread ((void *)(uintptr_t)thr_self())
203
204typedef struct kthread kthread_t;
205
206#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
207 zk_thread_create(func, arg)
208#define thread_exit() thr_exit(NULL)
209#define thread_join(t) panic("libzpool cannot join threads")
210
211#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
212
213/* in libzpool, p0 exists only to have its address taken */
214struct proc {
215 uintptr_t this_is_never_used_dont_dereference_it;
216};
217
218extern struct proc p0;
219#define curproc (&p0)
220
221#define PS_NONE -1
222
223extern kthread_t *zk_thread_create(void (*func)(), void *arg);
224
225#define issig(why) (FALSE)
226#define ISSIG(thr, why) (FALSE)
227
228/*
229 * Mutexes
230 */
231typedef struct kmutex {
232 void *m_owner;
233 boolean_t initialized;
234 mutex_t m_lock;
235} kmutex_t;
236
237#define MUTEX_DEFAULT USYNC_THREAD
238#undef MUTEX_HELD
239#undef MUTEX_NOT_HELD
240#define MUTEX_HELD(m) ((m)->m_owner == curthread)
241#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
242#define _mutex_held(m) pthread_mutex_isowned_np(m)
243
244/*
245 * Argh -- we have to get cheesy here because the kernel and userland
246 * have different signatures for the same routine.
247 */
248//extern int _mutex_init(mutex_t *mp, int type, void *arg);
249//extern int _mutex_destroy(mutex_t *mp);
250//extern int _mutex_owned(mutex_t *mp);
251
252#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
253#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
254#define mutex_owned(mp) zmutex_owned((kmutex_t *)(mp))
255
256extern void zmutex_init(kmutex_t *mp);
257extern void zmutex_destroy(kmutex_t *mp);
258extern int zmutex_owned(kmutex_t *mp);
259extern void mutex_enter(kmutex_t *mp);
260extern void mutex_exit(kmutex_t *mp);
261extern int mutex_tryenter(kmutex_t *mp);
262extern void *mutex_owner(kmutex_t *mp);
263
264/*
265 * RW locks
266 */
267typedef struct krwlock {
268 int rw_count;
269 void *rw_owner;
270 boolean_t initialized;
271 rwlock_t rw_lock;
272} krwlock_t;
273
274typedef int krw_t;
275
276#define RW_READER 0
277#define RW_WRITER 1
278#define RW_DEFAULT USYNC_THREAD
279
280#undef RW_READ_HELD
281#define RW_READ_HELD(x) ((x)->rw_owner == NULL && (x)->rw_count > 0)
282
283#undef RW_WRITE_HELD
284#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread)
285#define RW_LOCK_HELD(x) rw_lock_held(x)
286
287#undef RW_LOCK_HELD
288#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
289
290extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
291extern void rw_destroy(krwlock_t *rwlp);
292extern void rw_enter(krwlock_t *rwlp, krw_t rw);
293extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
294extern int rw_tryupgrade(krwlock_t *rwlp);
295extern void rw_exit(krwlock_t *rwlp);
296extern int rw_lock_held(krwlock_t *rwlp);
297#define rw_downgrade(rwlp) do { } while (0)
298
299extern uid_t crgetuid(cred_t *cr);
300extern uid_t crgetruid(cred_t *cr);
301extern gid_t crgetgid(cred_t *cr);
302extern int crgetngroups(cred_t *cr);
303extern gid_t *crgetgroups(cred_t *cr);
304
305/*
306 * Condition variables
307 */
308typedef cond_t kcondvar_t;
309
310#define CV_DEFAULT USYNC_THREAD
311
312extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
313extern void cv_destroy(kcondvar_t *cv);
314extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
315extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
316extern void cv_signal(kcondvar_t *cv);
317extern void cv_broadcast(kcondvar_t *cv);
318
319/*
320 * Thread-specific data
321 */
322#define tsd_get(k) pthread_getspecific(k)
323#define tsd_set(k, v) pthread_setspecific(k, v)
324#define tsd_create(kp, d) pthread_key_create(kp, d)
325#define tsd_destroy(kp) /* nothing */
326
327/*
328 * Kernel memory
329 */
330#define KM_SLEEP UMEM_NOFAIL
331#define KM_PUSHPAGE KM_SLEEP
332#define KM_NOSLEEP UMEM_DEFAULT
333#define KMC_NODEBUG UMC_NODEBUG
334#define KMC_NOTOUCH 0 /* not needed for userland caches */
335#define KM_NODEBUG 0
336#define kmem_alloc(_s, _f) umem_alloc(_s, _f)
337#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
338#define kmem_free(_b, _s) umem_free(_b, _s)
339#define kmem_size() (physmem * PAGESIZE)
340#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
341 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
342#define kmem_cache_destroy(_c) umem_cache_destroy(_c)
343#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
344#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
345#define kmem_debugging() 0
346#define kmem_cache_reap_now(_c) /* nothing */
347#define kmem_cache_set_move(_c, _cb) /* nothing */
348#define POINTER_INVALIDATE(_pp) /* nothing */
349#define POINTER_IS_VALID(_p) 0
350
351typedef umem_cache_t kmem_cache_t;
352
353typedef enum kmem_cbrc {
354 KMEM_CBRC_YES,
355 KMEM_CBRC_NO,
356 KMEM_CBRC_LATER,
357 KMEM_CBRC_DONT_NEED,
358 KMEM_CBRC_DONT_KNOW
359} kmem_cbrc_t;
360
361/*
362 * Task queues
363 */
364typedef struct taskq taskq_t;
365typedef uintptr_t taskqid_t;
366typedef void (task_func_t)(void *);
367
368#define TASKQ_PREPOPULATE 0x0001
369#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
370#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
371#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
372#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
373
374#define TQ_SLEEP KM_SLEEP /* Can block for memory */
375#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
376#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
377#define TQ_FRONT 0x08 /* Queue in front */
378
379extern taskq_t *system_taskq;
380
381extern 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))
386extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
387extern void taskq_destroy(taskq_t *);
388extern void taskq_wait(taskq_t *);
389extern int taskq_member(taskq_t *, void *);
390extern void system_taskq_init(void);
391extern void system_taskq_fini(void);
392
393#define taskq_dispatch_safe(tq, func, arg, flags, task) \
394 taskq_dispatch((tq), (func), (arg), (flags))
395
396#define XVA_MAPSIZE 3
397#define XVA_MAGIC 0x78766174
398
399/*
400 * vnodes
401 */
402typedef struct vnode {
403 uint64_t v_size;
404 int v_fd;
405 char *v_path;
406} vnode_t;
407
408#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
409
410typedef struct xoptattr {
411 timestruc_t xoa_createtime; /* Create time of file */
412 uint8_t xoa_archive;
413 uint8_t xoa_system;
414 uint8_t xoa_readonly;
415 uint8_t xoa_hidden;
416 uint8_t xoa_nounlink;
417 uint8_t xoa_immutable;
418 uint8_t xoa_appendonly;
419 uint8_t xoa_nodump;
420 uint8_t xoa_settable;
421 uint8_t xoa_opaque;
422 uint8_t xoa_av_quarantined;
423 uint8_t xoa_av_modified;
424 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
425 uint8_t xoa_reparse;
426 uint8_t xoa_offline;
427 uint8_t xoa_sparse;
428} xoptattr_t;
429
430typedef struct vattr {
431 uint_t va_mask; /* bit-mask of attributes */
432 u_offset_t va_size; /* file size in bytes */
433} vattr_t;
434
435
436typedef struct xvattr {
437 vattr_t xva_vattr; /* Embedded vattr structure */
438 uint32_t xva_magic; /* Magic Number */
439 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
440 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
441 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
442 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
443 xoptattr_t xva_xoptattrs; /* Optional attributes */
444} xvattr_t;
445
446typedef struct vsecattr {
447 uint_t vsa_mask; /* See below */
448 int vsa_aclcnt; /* ACL entry count */
449 void *vsa_aclentp; /* pointer to ACL entries */
450 int vsa_dfaclcnt; /* default ACL entry count */
451 void *vsa_dfaclentp; /* pointer to default ACL entries */
452 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
453} vsecattr_t;
454
455#define AT_TYPE 0x00001
456#define AT_MODE 0x00002
457#define AT_UID 0x00004
458#define AT_GID 0x00008
459#define AT_FSID 0x00010
460#define AT_NODEID 0x00020
461#define AT_NLINK 0x00040
462#define AT_SIZE 0x00080
463#define AT_ATIME 0x00100
464#define AT_MTIME 0x00200
465#define AT_CTIME 0x00400
466#define AT_RDEV 0x00800
467#define AT_BLKSIZE 0x01000
468#define AT_NBLOCKS 0x02000
469#define AT_SEQ 0x08000
470#define AT_XVATTR 0x10000
471
472#define CRCREAT 0
473
474extern int fop_getattr(vnode_t *vp, vattr_t *vap);
475
476#define VOP_CLOSE(vp, f, c, o, cr, ct) 0
477#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
478#define VOP_GETATTR(vp, vap, cr) fop_getattr((vp), (vap));
479
480#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
481
482#define VN_RELE(vp) vn_close(vp, 0, NULL, NULL)
483#define VN_RELE_ASYNC(vp, taskq) vn_close(vp, 0, NULL, NULL)
484
485#define vn_lock(vp, type)
486#define VOP_UNLOCK(vp, type)
487
488extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
489 int x2, int x3);
490extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
491 int x2, int x3, vnode_t *vp, int fd);
492extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
493 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
494extern void vn_close(vnode_t *vp, int openflag, cred_t *cr, kthread_t *td);
495
496#define vn_remove(path, x1, x2) remove(path)
497#define vn_rename(from, to, seg) rename((from), (to))
498#define vn_is_readonly(vp) B_FALSE
499
500extern vnode_t *rootdir;
501
502#include <sys/file.h> /* for FREAD, FWRITE, etc */
503#define FTRUNC O_TRUNC
504
505/*
506 * Random stuff
507 */
508#define ddi_get_lbolt() (gethrtime() >> 23)
509#define ddi_get_lbolt64() (gethrtime() >> 23)
510#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
511
512extern void delay(clock_t ticks);
513
514#define SEC_TO_TICK(sec) ((sec) * hz)
515#define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
516
517#define gethrestime_sec() time(NULL)
518#define gethrestime(t) \
519 do {\
520 (t)->tv_sec = gethrestime_sec();\
521 (t)->tv_nsec = 0;\
522 } while (0);
523
524#define max_ncpus 64
525
526#define minclsyspri 60
527#define maxclsyspri 99
528
529#define CPU_SEQID (thr_self() & (max_ncpus - 1))
530
531#define kcred NULL
532#define CRED() NULL
533
534#ifndef ptob
535#define ptob(x) ((x) * PAGESIZE)
536#endif
537
538extern uint64_t physmem;
539
540extern int highbit(ulong_t i);
541extern int random_get_bytes(uint8_t *ptr, size_t len);
542extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
543
544extern void kernel_init(int);
545extern void kernel_fini(void);
546
547struct spa;
548extern void nicenum(uint64_t num, char *buf);
549extern void show_pool_stats(struct spa *);
550
551typedef struct callb_cpr {
552 kmutex_t *cc_lockp;
553} callb_cpr_t;
554
555#define CALLB_CPR_INIT(cp, lockp, func, name) { \
556 (cp)->cc_lockp = lockp; \
557}
558
559#define CALLB_CPR_SAFE_BEGIN(cp) { \
560 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
561}
562
563#define CALLB_CPR_SAFE_END(cp, lockp) { \
564 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
565}
566
567#define CALLB_CPR_EXIT(cp) { \
568 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
569 mutex_exit((cp)->cc_lockp); \
570}
571
572#define zone_dataset_visible(x, y) (1)
573#define INGLOBALZONE(z) (1)
574
575extern char *kmem_asprintf(const char *fmt, ...);
576#define strfree(str) kmem_free((str), strlen(str) + 1)
577
578/*
579 * Hostname information
580 */
581extern struct utsname utsname;
582extern char hw_serial[]; /* for userland-emulated hostid access */
583extern int ddi_strtoul(const char *str, char **nptr, int base,
584 unsigned long *result);
585
586extern int ddi_strtoull(const char *str, char **nptr, int base,
587 u_longlong_t *result);
588
589/* ZFS Boot Related stuff. */
590
591struct _buf {
592 intptr_t _fd;
593};
594
595struct bootstat {
596 uint64_t st_size;
597};
598
599typedef struct ace_object {
600 uid_t a_who;
601 uint32_t a_access_mask;
602 uint16_t a_flags;
603 uint16_t a_type;
604 uint8_t a_obj_type[16];
605 uint8_t a_inherit_obj_type[16];
606} ace_object_t;
607
608
609#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
610#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
611#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
612#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
613
614extern struct _buf *kobj_open_file(char *name);
615extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
616 unsigned off);
617extern void kobj_close_file(struct _buf *file);
618extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
619extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
620extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
621 cred_t *cr);
622extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
623extern zoneid_t getzoneid(void);
624/* Random compatibility stuff. */
625#define lbolt (gethrtime() >> 23)
626#define lbolt64 (gethrtime() >> 23)
627
628extern uint64_t physmem;
629
630#define gethrestime_sec() time(NULL)
631
632#define pwrite64(d, p, n, o) pwrite(d, p, n, o)
633#define readdir64(d) readdir(d)
634#define SIGPENDING(td) (0)
635#define root_mount_wait() do { } while (0)
636#define root_mounted() (1)
637
638struct file {
639 void *dummy;
640};
641
642#define FCREAT O_CREAT
643#define FOFFMAX 0x0
644
645/* SID stuff */
646typedef struct ksiddomain {
647 uint_t kd_ref;
648 uint_t kd_len;
649 char *kd_name;
650} ksiddomain_t;
651
652ksiddomain_t *ksid_lookupdomain(const char *);
653void ksiddomain_rele(ksiddomain_t *);
654
655typedef uint32_t idmap_rid_t;
656
657#define DDI_SLEEP KM_SLEEP
658#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) (0)
659
660#define SX_SYSINIT(name, lock, desc)
661
662#define SYSCTL_DECL(...)
663#define SYSCTL_NODE(...)
664#define SYSCTL_INT(...)
665#define SYSCTL_UINT(...)
666#define SYSCTL_ULONG(...)
667#define SYSCTL_QUAD(...)
668#define SYSCTL_UQUAD(...)
669#ifdef TUNABLE_INT
670#undef TUNABLE_INT
671#undef TUNABLE_ULONG
672#undef TUNABLE_QUAD
673#endif
674#define TUNABLE_INT(...)
675#define TUNABLE_ULONG(...)
676#define TUNABLE_QUAD(...)
677
678/* Errors */
679
680#ifndef ERESTART
681#define ERESTART (-1)
682#endif
683
684#ifdef illumos
685/*
686 * Cyclic information
687 */
688extern kmutex_t cpu_lock;
689
690typedef uintptr_t cyclic_id_t;
691typedef uint16_t cyc_level_t;
692typedef void (*cyc_func_t)(void *);
693
694#define CY_LOW_LEVEL 0
695#define CY_INFINITY INT64_MAX
696#define CYCLIC_NONE ((cyclic_id_t)0)
697
698typedef struct cyc_time {
699 hrtime_t cyt_when;
700 hrtime_t cyt_interval;
701} cyc_time_t;
702
703typedef struct cyc_handler {
704 cyc_func_t cyh_func;
705 void *cyh_arg;
706 cyc_level_t cyh_level;
707} cyc_handler_t;
708
709extern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
710extern void cyclic_remove(cyclic_id_t);
711extern int cyclic_reprogram(cyclic_id_t, hrtime_t);
712#endif /* illumos */
713
714#ifdef __cplusplus
715}
716#endif
717
718#endif /* _SYS_ZFS_CONTEXT_H */
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) 2013 by Delphix. All rights reserved.
24 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
25 */
26
27#ifndef _SYS_ZFS_CONTEXT_H
28#define _SYS_ZFS_CONTEXT_H
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34#define _SYS_MUTEX_H
35#define _SYS_RWLOCK_H
36#define _SYS_CONDVAR_H
37#define _SYS_SYSTM_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 <pthread.h>
65#include <sys/debug.h>
66#include <sys/note.h>
67#include <sys/types.h>
68#include <sys/cred.h>
69#include <sys/atomic.h>
70#include <sys/sysmacros.h>
71#include <sys/bitmap.h>
72#include <sys/resource.h>
73#include <sys/byteorder.h>
74#include <sys/list.h>
75#include <sys/time.h>
76#include <sys/uio.h>
77#include <sys/mntent.h>
78#include <sys/mnttab.h>
79#include <sys/zfs_debug.h>
80#include <sys/sdt.h>
81#include <sys/kstat.h>
82#include <sys/u8_textprep.h>
83#include <sys/kernel.h>
84#include <sys/disk.h>
85#include <sys/sysevent.h>
86#include <sys/sysevent/eventdefs.h>
87#include <sys/sysevent/dev.h>
88#include <machine/atomic.h>
89#include <sys/debug.h>
90#ifdef illumos
91#include "zfs.h"
92#endif
93
94#define ZFS_EXPORTS_PATH "/etc/zfs/exports"
95
96/*
97 * Debugging
98 */
99
100/*
101 * Note that we are not using the debugging levels.
102 */
103
104#define CE_CONT 0 /* continuation */
105#define CE_NOTE 1 /* notice */
106#define CE_WARN 2 /* warning */
107#define CE_PANIC 3 /* panic */
108#define CE_IGNORE 4 /* print nothing */
109
110/*
111 * ZFS debugging
112 */
113
114#define ZFS_LOG(...) do { } while (0)
115
116typedef u_longlong_t rlim64_t;
117#define RLIM64_INFINITY ((rlim64_t)-3)
118
119#ifdef ZFS_DEBUG
120extern void dprintf_setup(int *argc, char **argv);
121#endif /* ZFS_DEBUG */
122
123extern void cmn_err(int, const char *, ...);
124extern void vcmn_err(int, const char *, __va_list);
125extern void panic(const char *, ...);
126extern void vpanic(const char *, __va_list);
127
128#define fm_panic panic
129
130extern int aok;
131
132/*
133 * DTrace SDT probes have different signatures in userland than they do in
134 * kernel. If they're being used in kernel code, re-define them out of
135 * existence for their counterparts in libzpool.
136 */
137
138#ifdef DTRACE_PROBE
139#undef DTRACE_PROBE
140#endif /* DTRACE_PROBE */
141#ifdef illumos
142#define DTRACE_PROBE(a) \
143 ZFS_PROBE0(#a)
144#endif
145
146#ifdef DTRACE_PROBE1
147#undef DTRACE_PROBE1
148#endif /* DTRACE_PROBE1 */
149#ifdef illumos
150#define DTRACE_PROBE1(a, b, c) \
151 ZFS_PROBE1(#a, (unsigned long)c)
152#endif
153
154#ifdef DTRACE_PROBE2
155#undef DTRACE_PROBE2
156#endif /* DTRACE_PROBE2 */
157#ifdef illumos
158#define DTRACE_PROBE2(a, b, c, d, e) \
159 ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)
160#endif
161
162#ifdef DTRACE_PROBE3
163#undef DTRACE_PROBE3
164#endif /* DTRACE_PROBE3 */
165#ifdef illumos
166#define DTRACE_PROBE3(a, b, c, d, e, f, g) \
167 ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)
168#endif
169
170#ifdef DTRACE_PROBE4
171#undef DTRACE_PROBE4
172#endif /* DTRACE_PROBE4 */
173#ifdef illumos
174#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
175 ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
176 (unsigned long)i)
177#endif
178
179#ifdef illumos
180/*
181 * We use the comma operator so that this macro can be used without much
182 * additional code. For example, "return (EINVAL);" becomes
183 * "return (SET_ERROR(EINVAL));". Note that the argument will be evaluated
184 * twice, so it should not have side effects (e.g. something like:
185 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
186 */
187#define SET_ERROR(err) (ZFS_SET_ERROR(err), err)
188#else /* !illumos */
189
190#define DTRACE_PROBE(a) ((void)0)
191#define DTRACE_PROBE1(a, b, c) ((void)0)
192#define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
193#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
194#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
195
196#define SET_ERROR(err) (err)
197#endif /* !illumos */
198
199/*
200 * Threads
201 */
202#define curthread ((void *)(uintptr_t)thr_self())
203
204typedef struct kthread kthread_t;
205
206#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
207 zk_thread_create(func, arg)
208#define thread_exit() thr_exit(NULL)
209#define thread_join(t) panic("libzpool cannot join threads")
210
211#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
212
213/* in libzpool, p0 exists only to have its address taken */
214struct proc {
215 uintptr_t this_is_never_used_dont_dereference_it;
216};
217
218extern struct proc p0;
219#define curproc (&p0)
220
221#define PS_NONE -1
222
223extern kthread_t *zk_thread_create(void (*func)(), void *arg);
224
225#define issig(why) (FALSE)
226#define ISSIG(thr, why) (FALSE)
227
228/*
229 * Mutexes
230 */
231typedef struct kmutex {
232 void *m_owner;
233 boolean_t initialized;
234 mutex_t m_lock;
235} kmutex_t;
236
237#define MUTEX_DEFAULT USYNC_THREAD
238#undef MUTEX_HELD
239#undef MUTEX_NOT_HELD
240#define MUTEX_HELD(m) ((m)->m_owner == curthread)
241#define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
242#define _mutex_held(m) pthread_mutex_isowned_np(m)
243
244/*
245 * Argh -- we have to get cheesy here because the kernel and userland
246 * have different signatures for the same routine.
247 */
248//extern int _mutex_init(mutex_t *mp, int type, void *arg);
249//extern int _mutex_destroy(mutex_t *mp);
250//extern int _mutex_owned(mutex_t *mp);
251
252#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
253#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
254#define mutex_owned(mp) zmutex_owned((kmutex_t *)(mp))
255
256extern void zmutex_init(kmutex_t *mp);
257extern void zmutex_destroy(kmutex_t *mp);
258extern int zmutex_owned(kmutex_t *mp);
259extern void mutex_enter(kmutex_t *mp);
260extern void mutex_exit(kmutex_t *mp);
261extern int mutex_tryenter(kmutex_t *mp);
262extern void *mutex_owner(kmutex_t *mp);
263
264/*
265 * RW locks
266 */
267typedef struct krwlock {
268 int rw_count;
269 void *rw_owner;
270 boolean_t initialized;
271 rwlock_t rw_lock;
272} krwlock_t;
273
274typedef int krw_t;
275
276#define RW_READER 0
277#define RW_WRITER 1
278#define RW_DEFAULT USYNC_THREAD
279
280#undef RW_READ_HELD
281#define RW_READ_HELD(x) ((x)->rw_owner == NULL && (x)->rw_count > 0)
282
283#undef RW_WRITE_HELD
284#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread)
285#define RW_LOCK_HELD(x) rw_lock_held(x)
286
287#undef RW_LOCK_HELD
288#define RW_LOCK_HELD(x) (RW_READ_HELD(x) || RW_WRITE_HELD(x))
289
290extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
291extern void rw_destroy(krwlock_t *rwlp);
292extern void rw_enter(krwlock_t *rwlp, krw_t rw);
293extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
294extern int rw_tryupgrade(krwlock_t *rwlp);
295extern void rw_exit(krwlock_t *rwlp);
296extern int rw_lock_held(krwlock_t *rwlp);
297#define rw_downgrade(rwlp) do { } while (0)
298
299extern uid_t crgetuid(cred_t *cr);
300extern uid_t crgetruid(cred_t *cr);
301extern gid_t crgetgid(cred_t *cr);
302extern int crgetngroups(cred_t *cr);
303extern gid_t *crgetgroups(cred_t *cr);
304
305/*
306 * Condition variables
307 */
308typedef cond_t kcondvar_t;
309
310#define CV_DEFAULT USYNC_THREAD
311
312extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
313extern void cv_destroy(kcondvar_t *cv);
314extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
315extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
316extern void cv_signal(kcondvar_t *cv);
317extern void cv_broadcast(kcondvar_t *cv);
318
319/*
320 * Thread-specific data
321 */
322#define tsd_get(k) pthread_getspecific(k)
323#define tsd_set(k, v) pthread_setspecific(k, v)
324#define tsd_create(kp, d) pthread_key_create(kp, d)
325#define tsd_destroy(kp) /* nothing */
326
327/*
328 * Kernel memory
329 */
330#define KM_SLEEP UMEM_NOFAIL
331#define KM_PUSHPAGE KM_SLEEP
332#define KM_NOSLEEP UMEM_DEFAULT
333#define KMC_NODEBUG UMC_NODEBUG
334#define KMC_NOTOUCH 0 /* not needed for userland caches */
335#define KM_NODEBUG 0
336#define kmem_alloc(_s, _f) umem_alloc(_s, _f)
337#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
338#define kmem_free(_b, _s) umem_free(_b, _s)
339#define kmem_size() (physmem * PAGESIZE)
340#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
341 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
342#define kmem_cache_destroy(_c) umem_cache_destroy(_c)
343#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
344#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
345#define kmem_debugging() 0
346#define kmem_cache_reap_now(_c) /* nothing */
347#define kmem_cache_set_move(_c, _cb) /* nothing */
348#define POINTER_INVALIDATE(_pp) /* nothing */
349#define POINTER_IS_VALID(_p) 0
350
351typedef umem_cache_t kmem_cache_t;
352
353typedef enum kmem_cbrc {
354 KMEM_CBRC_YES,
355 KMEM_CBRC_NO,
356 KMEM_CBRC_LATER,
357 KMEM_CBRC_DONT_NEED,
358 KMEM_CBRC_DONT_KNOW
359} kmem_cbrc_t;
360
361/*
362 * Task queues
363 */
364typedef struct taskq taskq_t;
365typedef uintptr_t taskqid_t;
366typedef void (task_func_t)(void *);
367
368#define TASKQ_PREPOPULATE 0x0001
369#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
370#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
371#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
372#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
373
374#define TQ_SLEEP KM_SLEEP /* Can block for memory */
375#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
376#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
377#define TQ_FRONT 0x08 /* Queue in front */
378
379extern taskq_t *system_taskq;
380
381extern 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))
386extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
387extern void taskq_destroy(taskq_t *);
388extern void taskq_wait(taskq_t *);
389extern int taskq_member(taskq_t *, void *);
390extern void system_taskq_init(void);
391extern void system_taskq_fini(void);
392
393#define taskq_dispatch_safe(tq, func, arg, flags, task) \
394 taskq_dispatch((tq), (func), (arg), (flags))
395
396#define XVA_MAPSIZE 3
397#define XVA_MAGIC 0x78766174
398
399/*
400 * vnodes
401 */
402typedef struct vnode {
403 uint64_t v_size;
404 int v_fd;
405 char *v_path;
406} vnode_t;
407
408#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
409
410typedef struct xoptattr {
411 timestruc_t xoa_createtime; /* Create time of file */
412 uint8_t xoa_archive;
413 uint8_t xoa_system;
414 uint8_t xoa_readonly;
415 uint8_t xoa_hidden;
416 uint8_t xoa_nounlink;
417 uint8_t xoa_immutable;
418 uint8_t xoa_appendonly;
419 uint8_t xoa_nodump;
420 uint8_t xoa_settable;
421 uint8_t xoa_opaque;
422 uint8_t xoa_av_quarantined;
423 uint8_t xoa_av_modified;
424 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
425 uint8_t xoa_reparse;
426 uint8_t xoa_offline;
427 uint8_t xoa_sparse;
428} xoptattr_t;
429
430typedef struct vattr {
431 uint_t va_mask; /* bit-mask of attributes */
432 u_offset_t va_size; /* file size in bytes */
433} vattr_t;
434
435
436typedef struct xvattr {
437 vattr_t xva_vattr; /* Embedded vattr structure */
438 uint32_t xva_magic; /* Magic Number */
439 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
440 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
441 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
442 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
443 xoptattr_t xva_xoptattrs; /* Optional attributes */
444} xvattr_t;
445
446typedef struct vsecattr {
447 uint_t vsa_mask; /* See below */
448 int vsa_aclcnt; /* ACL entry count */
449 void *vsa_aclentp; /* pointer to ACL entries */
450 int vsa_dfaclcnt; /* default ACL entry count */
451 void *vsa_dfaclentp; /* pointer to default ACL entries */
452 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
453} vsecattr_t;
454
455#define AT_TYPE 0x00001
456#define AT_MODE 0x00002
457#define AT_UID 0x00004
458#define AT_GID 0x00008
459#define AT_FSID 0x00010
460#define AT_NODEID 0x00020
461#define AT_NLINK 0x00040
462#define AT_SIZE 0x00080
463#define AT_ATIME 0x00100
464#define AT_MTIME 0x00200
465#define AT_CTIME 0x00400
466#define AT_RDEV 0x00800
467#define AT_BLKSIZE 0x01000
468#define AT_NBLOCKS 0x02000
469#define AT_SEQ 0x08000
470#define AT_XVATTR 0x10000
471
472#define CRCREAT 0
473
474extern int fop_getattr(vnode_t *vp, vattr_t *vap);
475
476#define VOP_CLOSE(vp, f, c, o, cr, ct) 0
477#define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
478#define VOP_GETATTR(vp, vap, cr) fop_getattr((vp), (vap));
479
480#define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
481
482#define VN_RELE(vp) vn_close(vp, 0, NULL, NULL)
483#define VN_RELE_ASYNC(vp, taskq) vn_close(vp, 0, NULL, NULL)
484
485#define vn_lock(vp, type)
486#define VOP_UNLOCK(vp, type)
487
488extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
489 int x2, int x3);
490extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
491 int x2, int x3, vnode_t *vp, int fd);
492extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
493 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
494extern void vn_close(vnode_t *vp, int openflag, cred_t *cr, kthread_t *td);
495
496#define vn_remove(path, x1, x2) remove(path)
497#define vn_rename(from, to, seg) rename((from), (to))
498#define vn_is_readonly(vp) B_FALSE
499
500extern vnode_t *rootdir;
501
502#include <sys/file.h> /* for FREAD, FWRITE, etc */
503#define FTRUNC O_TRUNC
504
505/*
506 * Random stuff
507 */
508#define ddi_get_lbolt() (gethrtime() >> 23)
509#define ddi_get_lbolt64() (gethrtime() >> 23)
510#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
511
512extern void delay(clock_t ticks);
513
514#define SEC_TO_TICK(sec) ((sec) * hz)
515#define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz))
516
517#define gethrestime_sec() time(NULL)
518#define gethrestime(t) \
519 do {\
520 (t)->tv_sec = gethrestime_sec();\
521 (t)->tv_nsec = 0;\
522 } while (0);
523
524#define max_ncpus 64
525
526#define minclsyspri 60
527#define maxclsyspri 99
528
529#define CPU_SEQID (thr_self() & (max_ncpus - 1))
530
531#define kcred NULL
532#define CRED() NULL
533
534#ifndef ptob
535#define ptob(x) ((x) * PAGESIZE)
536#endif
537
538extern uint64_t physmem;
539
540extern int highbit(ulong_t i);
541extern int random_get_bytes(uint8_t *ptr, size_t len);
542extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
543
544extern void kernel_init(int);
545extern void kernel_fini(void);
546
547struct spa;
548extern void nicenum(uint64_t num, char *buf);
549extern void show_pool_stats(struct spa *);
550
551typedef struct callb_cpr {
552 kmutex_t *cc_lockp;
553} callb_cpr_t;
554
555#define CALLB_CPR_INIT(cp, lockp, func, name) { \
556 (cp)->cc_lockp = lockp; \
557}
558
559#define CALLB_CPR_SAFE_BEGIN(cp) { \
560 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
561}
562
563#define CALLB_CPR_SAFE_END(cp, lockp) { \
564 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
565}
566
567#define CALLB_CPR_EXIT(cp) { \
568 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
569 mutex_exit((cp)->cc_lockp); \
570}
571
572#define zone_dataset_visible(x, y) (1)
573#define INGLOBALZONE(z) (1)
574
575extern char *kmem_asprintf(const char *fmt, ...);
576#define strfree(str) kmem_free((str), strlen(str) + 1)
577
578/*
579 * Hostname information
580 */
581extern struct utsname utsname;
582extern char hw_serial[]; /* for userland-emulated hostid access */
583extern int ddi_strtoul(const char *str, char **nptr, int base,
584 unsigned long *result);
585
586extern int ddi_strtoull(const char *str, char **nptr, int base,
587 u_longlong_t *result);
588
589/* ZFS Boot Related stuff. */
590
591struct _buf {
592 intptr_t _fd;
593};
594
595struct bootstat {
596 uint64_t st_size;
597};
598
599typedef struct ace_object {
600 uid_t a_who;
601 uint32_t a_access_mask;
602 uint16_t a_flags;
603 uint16_t a_type;
604 uint8_t a_obj_type[16];
605 uint8_t a_inherit_obj_type[16];
606} ace_object_t;
607
608
609#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
610#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
611#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
612#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
613
614extern struct _buf *kobj_open_file(char *name);
615extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
616 unsigned off);
617extern void kobj_close_file(struct _buf *file);
618extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
619extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
620extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
621 cred_t *cr);
622extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
623extern zoneid_t getzoneid(void);
624/* Random compatibility stuff. */
625#define lbolt (gethrtime() >> 23)
626#define lbolt64 (gethrtime() >> 23)
627
628extern uint64_t physmem;
629
630#define gethrestime_sec() time(NULL)
631
632#define pwrite64(d, p, n, o) pwrite(d, p, n, o)
633#define readdir64(d) readdir(d)
634#define SIGPENDING(td) (0)
635#define root_mount_wait() do { } while (0)
636#define root_mounted() (1)
637
638struct file {
639 void *dummy;
640};
641
642#define FCREAT O_CREAT
643#define FOFFMAX 0x0
644
645/* SID stuff */
646typedef struct ksiddomain {
647 uint_t kd_ref;
648 uint_t kd_len;
649 char *kd_name;
650} ksiddomain_t;
651
652ksiddomain_t *ksid_lookupdomain(const char *);
653void ksiddomain_rele(ksiddomain_t *);
654
655typedef uint32_t idmap_rid_t;
656
657#define DDI_SLEEP KM_SLEEP
658#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) (0)
659
660#define SX_SYSINIT(name, lock, desc)
661
662#define SYSCTL_DECL(...)
663#define SYSCTL_NODE(...)
664#define SYSCTL_INT(...)
665#define SYSCTL_UINT(...)
666#define SYSCTL_ULONG(...)
667#define SYSCTL_QUAD(...)
668#define SYSCTL_UQUAD(...)
669#ifdef TUNABLE_INT
670#undef TUNABLE_INT
671#undef TUNABLE_ULONG
672#undef TUNABLE_QUAD
673#endif
674#define TUNABLE_INT(...)
675#define TUNABLE_ULONG(...)
676#define TUNABLE_QUAD(...)
677
678/* Errors */
679
680#ifndef ERESTART
681#define ERESTART (-1)
682#endif
683
684#ifdef illumos
685/*
686 * Cyclic information
687 */
688extern kmutex_t cpu_lock;
689
690typedef uintptr_t cyclic_id_t;
691typedef uint16_t cyc_level_t;
692typedef void (*cyc_func_t)(void *);
693
694#define CY_LOW_LEVEL 0
695#define CY_INFINITY INT64_MAX
696#define CYCLIC_NONE ((cyclic_id_t)0)
697
698typedef struct cyc_time {
699 hrtime_t cyt_when;
700 hrtime_t cyt_interval;
701} cyc_time_t;
702
703typedef struct cyc_handler {
704 cyc_func_t cyh_func;
705 void *cyh_arg;
706 cyc_level_t cyh_level;
707} cyc_handler_t;
708
709extern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
710extern void cyclic_remove(cyclic_id_t);
711extern int cyclic_reprogram(cyclic_id_t, hrtime_t);
712#endif /* illumos */
713
714#ifdef __cplusplus
715}
716#endif
717
718#endif /* _SYS_ZFS_CONTEXT_H */