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.
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.
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]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
25 #ifndef _SYS_ZFS_CONTEXT_H
26 #define _SYS_ZFS_CONTEXT_H
34 #define _SYS_CONDVAR_H
61 #include <libsysevent.h>
63 #include <sys/types.h>
65 #include <sys/sysmacros.h>
66 #include <sys/bitmap.h>
67 #include <sys/resource.h>
68 #include <sys/byteorder.h>
71 #include <sys/zfs_debug.h>
73 #include <sys/kstat.h>
74 #include <sys/u8_textprep.h>
75 #include <sys/sysevent/eventdefs.h>
76 #include <sys/sysevent/dev.h>
77 #include <sys/sunddi.h>
84 * Note that we are not using the debugging levels.
87 #define CE_CONT 0 /* continuation */
88 #define CE_NOTE 1 /* notice */
89 #define CE_WARN 2 /* warning */
90 #define CE_PANIC 3 /* panic */
91 #define CE_IGNORE 4 /* print nothing */
98 extern void dprintf_setup(int *argc, char **argv);
99 #endif /* ZFS_DEBUG */
101 extern void cmn_err(int, const char *, ...);
102 extern void vcmn_err(int, const char *, __va_list);
103 extern void panic(const char *, ...);
104 extern void vpanic(const char *, __va_list);
106 #define fm_panic panic
110 /* This definition is copied from assert.h. */
111 #if defined(__STDC__)
112 #if __STDC_VERSION__ - 0 >= 199901L
113 #define zverify(EX) (void)((EX) || (aok) || \
114 (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
116 #define zverify(EX) (void)((EX) || (aok) || \
117 (__assert(#EX, __FILE__, __LINE__), 0))
118 #endif /* __STDC_VERSION__ - 0 >= 199901L */
120 #define zverify(EX) (void)((EX) || (aok) || \
121 (_assert("EX", __FILE__, __LINE__), 0))
122 #endif /* __STDC__ */
125 #define VERIFY zverify
126 #define ASSERT zverify
128 #define assert zverify
130 extern void __assert(const char *, const char *, int);
133 #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0)
136 #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
137 const TYPE __left = (TYPE)(LEFT); \
138 const TYPE __right = (TYPE)(RIGHT); \
139 if (!(__left OP __right) && (!aok)) { \
140 char *__buf = alloca(256); \
141 (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \
142 #LEFT, #OP, #RIGHT, \
143 (u_longlong_t)__left, #OP, (u_longlong_t)__right); \
144 __assert(__buf, __FILE__, __LINE__); \
146 _NOTE(CONSTCOND) } while (0)
150 #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
151 #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
152 #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
155 #define ASSERT3S(x, y, z) ((void)0)
156 #define ASSERT3U(x, y, z) ((void)0)
157 #define ASSERT3P(x, y, z) ((void)0)
159 #define ASSERT3S(x, y, z) VERIFY3S(x, y, z)
160 #define ASSERT3U(x, y, z) VERIFY3U(x, y, z)
161 #define ASSERT3P(x, y, z) VERIFY3P(x, y, z)
165 * DTrace SDT probes have different signatures in userland than they do in
166 * kernel. If they're being used in kernel code, re-define them out of
167 * existence for their counterparts in libzpool.
172 #define DTRACE_PROBE(a) ((void)0)
173 #endif /* DTRACE_PROBE */
177 #define DTRACE_PROBE1(a, b, c) ((void)0)
178 #endif /* DTRACE_PROBE1 */
182 #define DTRACE_PROBE2(a, b, c, d, e) ((void)0)
183 #endif /* DTRACE_PROBE2 */
187 #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0)
188 #endif /* DTRACE_PROBE3 */
192 #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0)
193 #endif /* DTRACE_PROBE4 */
198 #define curthread ((void *)(uintptr_t)thr_self())
200 typedef struct kthread kthread_t;
202 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
203 zk_thread_create(func, arg)
204 #define thread_exit() thr_exit(NULL)
205 #define thread_join(t) panic("libzpool cannot join threads")
207 #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS)
209 /* in libzpool, p0 exists only to have its address taken */
211 uintptr_t this_is_never_used_dont_dereference_it;
214 extern struct proc p0;
218 extern kthread_t *zk_thread_create(void (*func)(), void *arg);
220 #define issig(why) (FALSE)
221 #define ISSIG(thr, why) (FALSE)
226 typedef struct kmutex {
228 boolean_t initialized;
232 #define MUTEX_DEFAULT USYNC_THREAD
234 #undef MUTEX_NOT_HELD
235 #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock)
236 #define MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
239 * Argh -- we have to get cheesy here because the kernel and userland
240 * have different signatures for the same routine.
242 extern int _mutex_init(mutex_t *mp, int type, void *arg);
243 extern int _mutex_destroy(mutex_t *mp);
245 #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp))
246 #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp))
248 extern void zmutex_init(kmutex_t *mp);
249 extern void zmutex_destroy(kmutex_t *mp);
250 extern void mutex_enter(kmutex_t *mp);
251 extern void mutex_exit(kmutex_t *mp);
252 extern int mutex_tryenter(kmutex_t *mp);
253 extern void *mutex_owner(kmutex_t *mp);
258 typedef struct krwlock {
260 boolean_t initialized;
268 #define RW_DEFAULT USYNC_THREAD
271 #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock)
274 #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock)
276 extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
277 extern void rw_destroy(krwlock_t *rwlp);
278 extern void rw_enter(krwlock_t *rwlp, krw_t rw);
279 extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
280 extern int rw_tryupgrade(krwlock_t *rwlp);
281 extern void rw_exit(krwlock_t *rwlp);
282 #define rw_downgrade(rwlp) do { } while (0)
284 extern uid_t crgetuid(cred_t *cr);
285 extern gid_t crgetgid(cred_t *cr);
286 extern int crgetngroups(cred_t *cr);
287 extern gid_t *crgetgroups(cred_t *cr);
290 * Condition variables
292 typedef cond_t kcondvar_t;
294 #define CV_DEFAULT USYNC_THREAD
296 extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
297 extern void cv_destroy(kcondvar_t *cv);
298 extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
299 extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
300 extern void cv_signal(kcondvar_t *cv);
301 extern void cv_broadcast(kcondvar_t *cv);
304 * kstat creation, installation and deletion
306 extern kstat_t *kstat_create(char *, int,
307 char *, char *, uchar_t, ulong_t, uchar_t);
308 extern void kstat_install(kstat_t *);
309 extern void kstat_delete(kstat_t *);
314 #define KM_SLEEP UMEM_NOFAIL
315 #define KM_PUSHPAGE KM_SLEEP
316 #define KM_NOSLEEP UMEM_DEFAULT
317 #define KMC_NODEBUG UMC_NODEBUG
318 #define kmem_alloc(_s, _f) umem_alloc(_s, _f)
319 #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)
320 #define kmem_free(_b, _s) umem_free(_b, _s)
321 #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
322 umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
323 #define kmem_cache_destroy(_c) umem_cache_destroy(_c)
324 #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
325 #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b)
326 #define kmem_debugging() 0
327 #define kmem_cache_reap_now(_c) /* nothing */
328 #define kmem_cache_set_move(_c, _cb) /* nothing */
329 #define POINTER_INVALIDATE(_pp) /* nothing */
330 #define POINTER_IS_VALID(_p) 0
332 typedef umem_cache_t kmem_cache_t;
334 typedef enum kmem_cbrc {
345 typedef struct taskq taskq_t;
346 typedef uintptr_t taskqid_t;
347 typedef void (task_func_t)(void *);
349 #define TASKQ_PREPOPULATE 0x0001
350 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
351 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
352 #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */
353 #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */
355 #define TQ_SLEEP KM_SLEEP /* Can block for memory */
356 #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */
357 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
358 #define TQ_FRONT 0x08 /* Queue in front */
360 extern taskq_t *system_taskq;
362 extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
363 #define taskq_create_proc(a, b, c, d, e, p, f) \
364 (taskq_create(a, b, c, d, e, f))
365 #define taskq_create_sysdc(a, b, d, e, p, dc, f) \
366 (taskq_create(a, b, maxclsyspri, d, e, f))
367 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
368 extern void taskq_destroy(taskq_t *);
369 extern void taskq_wait(taskq_t *);
370 extern int taskq_member(taskq_t *, void *);
371 extern void system_taskq_init(void);
372 extern void system_taskq_fini(void);
374 #define XVA_MAPSIZE 3
375 #define XVA_MAGIC 0x78766174
380 typedef struct vnode {
386 #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */
388 typedef struct xoptattr {
389 timestruc_t xoa_createtime; /* Create time of file */
392 uint8_t xoa_readonly;
394 uint8_t xoa_nounlink;
395 uint8_t xoa_immutable;
396 uint8_t xoa_appendonly;
398 uint8_t xoa_settable;
400 uint8_t xoa_av_quarantined;
401 uint8_t xoa_av_modified;
402 uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ];
408 typedef struct vattr {
409 uint_t va_mask; /* bit-mask of attributes */
410 u_offset_t va_size; /* file size in bytes */
414 typedef struct xvattr {
415 vattr_t xva_vattr; /* Embedded vattr structure */
416 uint32_t xva_magic; /* Magic Number */
417 uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */
418 uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */
419 uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */
420 uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */
421 xoptattr_t xva_xoptattrs; /* Optional attributes */
424 typedef struct vsecattr {
425 uint_t vsa_mask; /* See below */
426 int vsa_aclcnt; /* ACL entry count */
427 void *vsa_aclentp; /* pointer to ACL entries */
428 int vsa_dfaclcnt; /* default ACL entry count */
429 void *vsa_dfaclentp; /* pointer to default ACL entries */
430 size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */
433 #define AT_TYPE 0x00001
434 #define AT_MODE 0x00002
435 #define AT_UID 0x00004
436 #define AT_GID 0x00008
437 #define AT_FSID 0x00010
438 #define AT_NODEID 0x00020
439 #define AT_NLINK 0x00040
440 #define AT_SIZE 0x00080
441 #define AT_ATIME 0x00100
442 #define AT_MTIME 0x00200
443 #define AT_CTIME 0x00400
444 #define AT_RDEV 0x00800
445 #define AT_BLKSIZE 0x01000
446 #define AT_NBLOCKS 0x02000
447 #define AT_SEQ 0x08000
448 #define AT_XVATTR 0x10000
452 extern int fop_getattr(vnode_t *vp, vattr_t *vap);
454 #define VOP_CLOSE(vp, f, c, o, cr, ct) 0
455 #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0
456 #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap));
458 #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd)
460 #define VN_RELE(vp) vn_close(vp)
462 extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
464 extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
465 int x2, int x3, vnode_t *vp, int fd);
466 extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
467 offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
468 extern void vn_close(vnode_t *vp);
470 #define vn_remove(path, x1, x2) remove(path)
471 #define vn_rename(from, to, seg) rename((from), (to))
472 #define vn_is_readonly(vp) B_FALSE
474 extern vnode_t *rootdir;
476 #include <sys/file.h> /* for FREAD, FWRITE, etc */
481 #define ddi_get_lbolt() (gethrtime() >> 23)
482 #define ddi_get_lbolt64() (gethrtime() >> 23)
483 #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */
485 extern void delay(clock_t ticks);
487 #define gethrestime_sec() time(NULL)
488 #define gethrestime(t) \
490 (t)->tv_sec = gethrestime_sec();\
496 #define minclsyspri 60
497 #define maxclsyspri 99
499 #define CPU_SEQID (thr_self() & (max_ncpus - 1))
504 #define ptob(x) ((x) * PAGESIZE)
506 extern uint64_t physmem;
508 extern int highbit(ulong_t i);
509 extern int random_get_bytes(uint8_t *ptr, size_t len);
510 extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
512 extern void kernel_init(int);
513 extern void kernel_fini(void);
516 extern void nicenum(uint64_t num, char *buf);
517 extern void show_pool_stats(struct spa *);
519 typedef struct callb_cpr {
523 #define CALLB_CPR_INIT(cp, lockp, func, name) { \
524 (cp)->cc_lockp = lockp; \
527 #define CALLB_CPR_SAFE_BEGIN(cp) { \
528 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
531 #define CALLB_CPR_SAFE_END(cp, lockp) { \
532 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
535 #define CALLB_CPR_EXIT(cp) { \
536 ASSERT(MUTEX_HELD((cp)->cc_lockp)); \
537 mutex_exit((cp)->cc_lockp); \
540 #define zone_dataset_visible(x, y) (1)
541 #define INGLOBALZONE(z) (1)
543 extern char *kmem_asprintf(const char *fmt, ...);
544 #define strfree(str) kmem_free((str), strlen(str)+1)
547 * Hostname information
549 extern char hw_serial[]; /* for userland-emulated hostid access */
550 extern int ddi_strtoul(const char *str, char **nptr, int base,
551 unsigned long *result);
553 extern int ddi_strtoull(const char *str, char **nptr, int base,
554 u_longlong_t *result);
556 /* ZFS Boot Related stuff. */
566 typedef struct ace_object {
568 uint32_t a_access_mask;
571 uint8_t a_obj_type[16];
572 uint8_t a_inherit_obj_type[16];
576 #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05
577 #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06
578 #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07
579 #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08
581 extern struct _buf *kobj_open_file(char *name);
582 extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
584 extern void kobj_close_file(struct _buf *file);
585 extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
586 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
587 extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
589 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
590 extern zoneid_t getzoneid(void);
593 typedef struct ksiddomain {
599 ksiddomain_t *ksid_lookupdomain(const char *);
600 void ksiddomain_rele(ksiddomain_t *);
602 #define DDI_SLEEP KM_SLEEP
603 #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
604 sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
610 #endif /* _SYS_ZFS_CONTEXT_H */