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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 | /* | |
d164b209 | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
77755a57 BB |
23 | * Use is subject to license terms. |
24 | */ | |
25 | ||
26 | #ifndef _SYS_ZFS_CONTEXT_H | |
27 | #define _SYS_ZFS_CONTEXT_H | |
28 | ||
29 | #ifdef __cplusplus | |
30 | extern "C" { | |
31 | #endif | |
32 | ||
33 | #define _SYS_MUTEX_H | |
34 | #define _SYS_RWLOCK_H | |
35 | #define _SYS_CONDVAR_H | |
36 | #define _SYS_SYSTM_H | |
37 | #define _SYS_DEBUG_H | |
38 | #define _SYS_T_LOCK_H | |
39 | #define _SYS_VNODE_H | |
40 | #define _SYS_VFS_H | |
41 | #define _SYS_SUNDDI_H | |
42 | #define _SYS_CALLB_H | |
43 | ||
44 | #include <stdio.h> | |
45 | #include <stdlib.h> | |
46 | #include <stddef.h> | |
47 | #include <stdarg.h> | |
48 | #include <fcntl.h> | |
49 | #include <unistd.h> | |
50 | #include <errno.h> | |
51 | #include <string.h> | |
52 | #include <strings.h> | |
53 | #include <synch.h> | |
54 | #include <thread.h> | |
55 | #include <assert.h> | |
56 | #include <alloca.h> | |
57 | #include <umem.h> | |
58 | #include <limits.h> | |
59 | #include <atomic.h> | |
60 | #include <dirent.h> | |
61 | #include <time.h> | |
62 | #include <sys/note.h> | |
63 | #include <sys/types.h> | |
64 | #include <sys/cred.h> | |
65 | #include <sys/sysmacros.h> | |
66 | #include <sys/bitmap.h> | |
67 | #include <sys/resource.h> | |
68 | #include <sys/byteorder.h> | |
69 | #include <sys/list.h> | |
70 | #include <sys/uio.h> | |
71 | #include <sys/zfs_debug.h> | |
72 | #include <sys/sdt.h> | |
73 | #include <sys/kstat.h> | |
74 | #include <sys/u8_textprep.h> | |
75 | #include <sys/sysevent/eventdefs.h> | |
76 | ||
77 | /* | |
78 | * Debugging | |
79 | */ | |
80 | ||
81 | /* | |
82 | * Note that we are not using the debugging levels. | |
83 | */ | |
84 | ||
85 | #define CE_CONT 0 /* continuation */ | |
86 | #define CE_NOTE 1 /* notice */ | |
87 | #define CE_WARN 2 /* warning */ | |
88 | #define CE_PANIC 3 /* panic */ | |
89 | #define CE_IGNORE 4 /* print nothing */ | |
90 | ||
91 | /* | |
92 | * ZFS debugging | |
93 | */ | |
94 | ||
95 | #ifdef ZFS_DEBUG | |
96 | extern void dprintf_setup(int *argc, char **argv); | |
97 | #endif /* ZFS_DEBUG */ | |
98 | ||
99 | extern void cmn_err(int, const char *, ...); | |
100 | extern void vcmn_err(int, const char *, __va_list); | |
101 | extern void panic(const char *, ...); | |
102 | extern void vpanic(const char *, __va_list); | |
103 | ||
104 | #define fm_panic panic | |
105 | ||
106 | /* This definition is copied from assert.h. */ | |
107 | #if defined(__STDC__) | |
108 | #if __STDC_VERSION__ - 0 >= 199901L | |
109 | #define verify(EX) (void)((EX) || \ | |
110 | (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) | |
111 | #else | |
112 | #define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) | |
113 | #endif /* __STDC_VERSION__ - 0 >= 199901L */ | |
114 | #else | |
115 | #define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) | |
116 | #endif /* __STDC__ */ | |
117 | ||
118 | ||
119 | #define VERIFY verify | |
120 | #define ASSERT assert | |
121 | ||
122 | extern void __assert(const char *, const char *, int); | |
123 | ||
124 | #ifdef lint | |
125 | #define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) | |
126 | #else | |
127 | /* BEGIN CSTYLED */ | |
128 | #define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ | |
129 | const TYPE __left = (TYPE)(LEFT); \ | |
130 | const TYPE __right = (TYPE)(RIGHT); \ | |
131 | if (!(__left OP __right)) { \ | |
132 | char *__buf = alloca(256); \ | |
133 | (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ | |
134 | #LEFT, #OP, #RIGHT, \ | |
135 | (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ | |
136 | __assert(__buf, __FILE__, __LINE__); \ | |
137 | } \ | |
138 | _NOTE(CONSTCOND) } while (0) | |
139 | /* END CSTYLED */ | |
140 | #endif /* lint */ | |
141 | ||
142 | #define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) | |
143 | #define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) | |
144 | #define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) | |
145 | ||
146 | #ifdef NDEBUG | |
147 | #define ASSERT3S(x, y, z) ((void)0) | |
148 | #define ASSERT3U(x, y, z) ((void)0) | |
149 | #define ASSERT3P(x, y, z) ((void)0) | |
150 | #else | |
151 | #define ASSERT3S(x, y, z) VERIFY3S(x, y, z) | |
152 | #define ASSERT3U(x, y, z) VERIFY3U(x, y, z) | |
153 | #define ASSERT3P(x, y, z) VERIFY3P(x, y, z) | |
154 | #endif | |
155 | ||
156 | /* | |
157 | * DTrace SDT probes have different signatures in userland than they do in | |
158 | * kernel. If they're being used in kernel code, re-define them out of | |
159 | * existence for their counterparts in libzpool. | |
160 | */ | |
161 | ||
162 | #ifdef DTRACE_PROBE | |
163 | #undef DTRACE_PROBE | |
164 | #define DTRACE_PROBE(a) ((void)0) | |
165 | #endif /* DTRACE_PROBE */ | |
166 | ||
167 | #ifdef DTRACE_PROBE1 | |
168 | #undef DTRACE_PROBE1 | |
169 | #define DTRACE_PROBE1(a, b, c) ((void)0) | |
170 | #endif /* DTRACE_PROBE1 */ | |
171 | ||
172 | #ifdef DTRACE_PROBE2 | |
173 | #undef DTRACE_PROBE2 | |
174 | #define DTRACE_PROBE2(a, b, c, d, e) ((void)0) | |
175 | #endif /* DTRACE_PROBE2 */ | |
176 | ||
177 | #ifdef DTRACE_PROBE3 | |
178 | #undef DTRACE_PROBE3 | |
179 | #define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) | |
180 | #endif /* DTRACE_PROBE3 */ | |
181 | ||
182 | #ifdef DTRACE_PROBE4 | |
183 | #undef DTRACE_PROBE4 | |
184 | #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) | |
185 | #endif /* DTRACE_PROBE4 */ | |
186 | ||
187 | /* | |
188 | * Threads | |
189 | */ | |
190 | #define curthread ((void *)(uintptr_t)thr_self()) | |
191 | ||
192 | typedef struct kthread kthread_t; | |
193 | ||
194 | #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ | |
195 | zk_thread_create(func, arg) | |
196 | #define thread_exit() thr_exit(NULL) | |
197 | ||
198 | extern kthread_t *zk_thread_create(void (*func)(), void *arg); | |
199 | ||
200 | #define issig(why) (FALSE) | |
201 | #define ISSIG(thr, why) (FALSE) | |
202 | ||
203 | /* | |
204 | * Mutexes | |
205 | */ | |
206 | typedef struct kmutex { | |
207 | void *m_owner; | |
208 | boolean_t initialized; | |
209 | mutex_t m_lock; | |
210 | } kmutex_t; | |
211 | ||
212 | #define MUTEX_DEFAULT USYNC_THREAD | |
213 | #undef MUTEX_HELD | |
214 | #define MUTEX_HELD(m) _mutex_held(&(m)->m_lock) | |
215 | ||
216 | /* | |
217 | * Argh -- we have to get cheesy here because the kernel and userland | |
218 | * have different signatures for the same routine. | |
219 | */ | |
220 | extern int _mutex_init(mutex_t *mp, int type, void *arg); | |
221 | extern int _mutex_destroy(mutex_t *mp); | |
222 | ||
223 | #define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) | |
224 | #define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) | |
225 | ||
226 | extern void zmutex_init(kmutex_t *mp); | |
227 | extern void zmutex_destroy(kmutex_t *mp); | |
228 | extern void mutex_enter(kmutex_t *mp); | |
229 | extern void mutex_exit(kmutex_t *mp); | |
230 | extern int mutex_tryenter(kmutex_t *mp); | |
231 | extern void *mutex_owner(kmutex_t *mp); | |
232 | ||
233 | /* | |
234 | * RW locks | |
235 | */ | |
236 | typedef struct krwlock { | |
237 | void *rw_owner; | |
238 | boolean_t initialized; | |
239 | rwlock_t rw_lock; | |
240 | } krwlock_t; | |
241 | ||
242 | typedef int krw_t; | |
243 | ||
244 | #define RW_READER 0 | |
245 | #define RW_WRITER 1 | |
246 | #define RW_DEFAULT USYNC_THREAD | |
247 | ||
248 | #undef RW_READ_HELD | |
249 | #define RW_READ_HELD(x) _rw_read_held(&(x)->rw_lock) | |
250 | ||
251 | #undef RW_WRITE_HELD | |
252 | #define RW_WRITE_HELD(x) _rw_write_held(&(x)->rw_lock) | |
253 | ||
254 | extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); | |
255 | extern void rw_destroy(krwlock_t *rwlp); | |
256 | extern void rw_enter(krwlock_t *rwlp, krw_t rw); | |
257 | extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); | |
258 | extern int rw_tryupgrade(krwlock_t *rwlp); | |
259 | extern void rw_exit(krwlock_t *rwlp); | |
260 | #define rw_downgrade(rwlp) do { } while (0) | |
261 | ||
262 | extern uid_t crgetuid(cred_t *cr); | |
263 | extern gid_t crgetgid(cred_t *cr); | |
264 | extern int crgetngroups(cred_t *cr); | |
265 | extern gid_t *crgetgroups(cred_t *cr); | |
266 | ||
267 | /* | |
268 | * Condition variables | |
269 | */ | |
270 | typedef cond_t kcondvar_t; | |
271 | ||
272 | #define CV_DEFAULT USYNC_THREAD | |
273 | ||
274 | extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); | |
275 | extern void cv_destroy(kcondvar_t *cv); | |
276 | extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); | |
277 | extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); | |
278 | extern void cv_signal(kcondvar_t *cv); | |
279 | extern void cv_broadcast(kcondvar_t *cv); | |
280 | ||
281 | /* | |
282 | * kstat creation, installation and deletion | |
283 | */ | |
284 | extern kstat_t *kstat_create(char *, int, | |
285 | char *, char *, uchar_t, ulong_t, uchar_t); | |
286 | extern void kstat_install(kstat_t *); | |
287 | extern void kstat_delete(kstat_t *); | |
288 | ||
289 | /* | |
290 | * Kernel memory | |
291 | */ | |
292 | #define KM_SLEEP UMEM_NOFAIL | |
293 | #define KM_PUSHPAGE KM_SLEEP | |
294 | #define KM_NOSLEEP UMEM_DEFAULT | |
295 | #define KMC_NODEBUG UMC_NODEBUG | |
296 | #define kmem_alloc(_s, _f) umem_alloc(_s, _f) | |
297 | #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) | |
298 | #define kmem_free(_b, _s) umem_free(_b, _s) | |
299 | #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ | |
300 | umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) | |
301 | #define kmem_cache_destroy(_c) umem_cache_destroy(_c) | |
302 | #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) | |
303 | #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) | |
304 | #define kmem_debugging() 0 | |
305 | #define kmem_cache_reap_now(c) | |
306 | ||
307 | typedef umem_cache_t kmem_cache_t; | |
308 | ||
309 | /* | |
310 | * Task queues | |
311 | */ | |
312 | typedef struct taskq taskq_t; | |
313 | typedef uintptr_t taskqid_t; | |
314 | typedef void (task_func_t)(void *); | |
315 | ||
316 | #define TASKQ_PREPOPULATE 0x0001 | |
317 | #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ | |
318 | #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ | |
319 | ||
320 | #define TQ_SLEEP KM_SLEEP /* Can block for memory */ | |
321 | #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ | |
322 | #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ | |
323 | ||
324 | extern taskq_t *system_taskq; | |
325 | ||
326 | extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); | |
327 | extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); | |
328 | extern void taskq_destroy(taskq_t *); | |
329 | extern void taskq_wait(taskq_t *); | |
330 | extern int taskq_member(taskq_t *, void *); | |
331 | extern void system_taskq_init(void); | |
332 | ||
333 | #define XVA_MAPSIZE 3 | |
334 | #define XVA_MAGIC 0x78766174 | |
335 | ||
336 | /* | |
337 | * vnodes | |
338 | */ | |
339 | typedef struct vnode { | |
340 | uint64_t v_size; | |
341 | int v_fd; | |
342 | char *v_path; | |
343 | } vnode_t; | |
344 | ||
345 | ||
346 | typedef struct xoptattr { | |
347 | timestruc_t xoa_createtime; /* Create time of file */ | |
348 | uint8_t xoa_archive; | |
349 | uint8_t xoa_system; | |
350 | uint8_t xoa_readonly; | |
351 | uint8_t xoa_hidden; | |
352 | uint8_t xoa_nounlink; | |
353 | uint8_t xoa_immutable; | |
354 | uint8_t xoa_appendonly; | |
355 | uint8_t xoa_nodump; | |
356 | uint8_t xoa_settable; | |
357 | uint8_t xoa_opaque; | |
358 | uint8_t xoa_av_quarantined; | |
359 | uint8_t xoa_av_modified; | |
360 | } xoptattr_t; | |
361 | ||
362 | typedef struct vattr { | |
363 | uint_t va_mask; /* bit-mask of attributes */ | |
364 | u_offset_t va_size; /* file size in bytes */ | |
365 | } vattr_t; | |
366 | ||
367 | ||
368 | typedef struct xvattr { | |
369 | vattr_t xva_vattr; /* Embedded vattr structure */ | |
370 | uint32_t xva_magic; /* Magic Number */ | |
371 | uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ | |
372 | uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ | |
373 | uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ | |
374 | uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ | |
375 | xoptattr_t xva_xoptattrs; /* Optional attributes */ | |
376 | } xvattr_t; | |
377 | ||
378 | typedef struct vsecattr { | |
379 | uint_t vsa_mask; /* See below */ | |
380 | int vsa_aclcnt; /* ACL entry count */ | |
381 | void *vsa_aclentp; /* pointer to ACL entries */ | |
382 | int vsa_dfaclcnt; /* default ACL entry count */ | |
383 | void *vsa_dfaclentp; /* pointer to default ACL entries */ | |
384 | size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ | |
385 | } vsecattr_t; | |
386 | ||
387 | #define AT_TYPE 0x00001 | |
388 | #define AT_MODE 0x00002 | |
389 | #define AT_UID 0x00004 | |
390 | #define AT_GID 0x00008 | |
391 | #define AT_FSID 0x00010 | |
392 | #define AT_NODEID 0x00020 | |
393 | #define AT_NLINK 0x00040 | |
394 | #define AT_SIZE 0x00080 | |
395 | #define AT_ATIME 0x00100 | |
396 | #define AT_MTIME 0x00200 | |
397 | #define AT_CTIME 0x00400 | |
398 | #define AT_RDEV 0x00800 | |
399 | #define AT_BLKSIZE 0x01000 | |
400 | #define AT_NBLOCKS 0x02000 | |
401 | #define AT_SEQ 0x08000 | |
402 | #define AT_XVATTR 0x10000 | |
403 | ||
404 | #define CRCREAT 0 | |
405 | ||
406 | #define VOP_CLOSE(vp, f, c, o, cr, ct) 0 | |
407 | #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 | |
408 | #define VOP_GETATTR(vp, vap, fl, cr, ct) ((vap)->va_size = (vp)->v_size, 0) | |
409 | ||
410 | #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) | |
411 | ||
412 | #define VN_RELE(vp) vn_close(vp) | |
413 | ||
414 | extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, | |
415 | int x2, int x3); | |
416 | extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, | |
417 | int x2, int x3, vnode_t *vp, int fd); | |
418 | extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, | |
419 | offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); | |
420 | extern void vn_close(vnode_t *vp); | |
421 | ||
422 | #define vn_remove(path, x1, x2) remove(path) | |
423 | #define vn_rename(from, to, seg) rename((from), (to)) | |
424 | #define vn_is_readonly(vp) B_FALSE | |
425 | ||
426 | extern vnode_t *rootdir; | |
427 | ||
428 | #include <sys/file.h> /* for FREAD, FWRITE, etc */ | |
429 | ||
430 | /* | |
431 | * Random stuff | |
432 | */ | |
433 | #define lbolt (gethrtime() >> 23) | |
434 | #define lbolt64 (gethrtime() >> 23) | |
435 | #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ | |
436 | ||
437 | extern void delay(clock_t ticks); | |
438 | ||
439 | #define gethrestime_sec() time(NULL) | |
440 | ||
441 | #define max_ncpus 64 | |
442 | ||
443 | #define minclsyspri 60 | |
444 | #define maxclsyspri 99 | |
445 | ||
446 | #define CPU_SEQID (thr_self() & (max_ncpus - 1)) | |
447 | ||
448 | #define kcred NULL | |
449 | #define CRED() NULL | |
450 | ||
451 | #define ptob(x) ((x) * PAGESIZE) | |
452 | ||
453 | extern uint64_t physmem; | |
454 | ||
455 | extern int highbit(ulong_t i); | |
456 | extern int random_get_bytes(uint8_t *ptr, size_t len); | |
457 | extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); | |
458 | ||
459 | extern void kernel_init(int); | |
460 | extern void kernel_fini(void); | |
461 | ||
462 | struct spa; | |
463 | extern void nicenum(uint64_t num, char *buf); | |
464 | extern void show_pool_stats(struct spa *); | |
465 | ||
466 | typedef struct callb_cpr { | |
467 | kmutex_t *cc_lockp; | |
468 | } callb_cpr_t; | |
469 | ||
470 | #define CALLB_CPR_INIT(cp, lockp, func, name) { \ | |
471 | (cp)->cc_lockp = lockp; \ | |
472 | } | |
473 | ||
474 | #define CALLB_CPR_SAFE_BEGIN(cp) { \ | |
475 | ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ | |
476 | } | |
477 | ||
478 | #define CALLB_CPR_SAFE_END(cp, lockp) { \ | |
479 | ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ | |
480 | } | |
481 | ||
482 | #define CALLB_CPR_EXIT(cp) { \ | |
483 | ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ | |
484 | mutex_exit((cp)->cc_lockp); \ | |
485 | } | |
486 | ||
487 | #define zone_dataset_visible(x, y) (1) | |
488 | #define INGLOBALZONE(z) (1) | |
489 | ||
490 | /* | |
491 | * Hostname information | |
492 | */ | |
d164b209 | 493 | extern char hw_serial[]; /* for userland-emulated hostid access */ |
77755a57 BB |
494 | extern int ddi_strtoul(const char *str, char **nptr, int base, |
495 | unsigned long *result); | |
496 | ||
497 | /* ZFS Boot Related stuff. */ | |
498 | ||
499 | struct _buf { | |
500 | intptr_t _fd; | |
501 | }; | |
502 | ||
503 | struct bootstat { | |
504 | uint64_t st_size; | |
505 | }; | |
506 | ||
507 | typedef struct ace_object { | |
508 | uid_t a_who; | |
509 | uint32_t a_access_mask; | |
510 | uint16_t a_flags; | |
511 | uint16_t a_type; | |
512 | uint8_t a_obj_type[16]; | |
513 | uint8_t a_inherit_obj_type[16]; | |
514 | } ace_object_t; | |
515 | ||
516 | ||
517 | #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 | |
518 | #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 | |
519 | #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 | |
520 | #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 | |
521 | ||
522 | extern struct _buf *kobj_open_file(char *name); | |
523 | extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, | |
524 | unsigned off); | |
525 | extern void kobj_close_file(struct _buf *file); | |
526 | extern int kobj_get_filesize(struct _buf *file, uint64_t *size); | |
527 | extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); | |
528 | extern int zfs_secpolicy_rename_perms(const char *from, const char *to, | |
529 | cred_t *cr); | |
530 | extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); | |
531 | extern zoneid_t getzoneid(void); | |
532 | ||
533 | /* SID stuff */ | |
534 | typedef struct ksiddomain { | |
535 | uint_t kd_ref; | |
536 | uint_t kd_len; | |
537 | char *kd_name; | |
538 | } ksiddomain_t; | |
539 | ||
540 | ksiddomain_t *ksid_lookupdomain(const char *); | |
541 | void ksiddomain_rele(ksiddomain_t *); | |
542 | ||
543 | #ifdef __cplusplus | |
544 | } | |
545 | #endif | |
546 | ||
547 | #endif /* _SYS_ZFS_CONTEXT_H */ |