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Diffstat (limited to 'include/sys/zfs_context.h')
| -rw-r--r-- | include/sys/zfs_context.h | 789 |
1 files changed, 0 insertions, 789 deletions
diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h deleted file mode 100644 index 7112d3ef5c99..000000000000 --- a/include/sys/zfs_context.h +++ /dev/null @@ -1,789 +0,0 @@ -// SPDX-License-Identifier: CDDL-1.0 -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or https://opensource.org/licenses/CDDL-1.0. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright 2011 Nexenta Systems, Inc. All rights reserved. - * Copyright (c) 2012, 2018 by Delphix. All rights reserved. - * Copyright (c) 2012, Joyent, Inc. All rights reserved. - */ - -#ifndef _SYS_ZFS_CONTEXT_H -#define _SYS_ZFS_CONTEXT_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * This code compiles in three different contexts. When __KERNEL__ is defined, - * the code uses "unix-like" kernel interfaces. When _STANDALONE is defined, the - * code is running in a reduced capacity environment of the boot loader which is - * generally a subset of both POSIX and kernel interfaces (with a few unique - * interfaces too). When neither are defined, it's in a userland POSIX or - * similar environment. - */ -#if defined(__KERNEL__) || defined(_STANDALONE) -#include <sys/types.h> -#include <sys/atomic.h> -#include <sys/sysmacros.h> -#include <sys/vmsystm.h> -#include <sys/condvar.h> -#include <sys/cmn_err.h> -#include <sys/kmem.h> -#include <sys/kmem_cache.h> -#include <sys/vmem.h> -#include <sys/misc.h> -#include <sys/taskq.h> -#include <sys/param.h> -#include <sys/disp.h> -#include <sys/debug.h> -#include <sys/random.h> -#include <sys/string.h> -#include <sys/byteorder.h> -#include <sys/list.h> -#include <sys/time.h> -#include <sys/zone.h> -#include <sys/kstat.h> -#include <sys/zfs_debug.h> -#include <sys/sysevent.h> -#include <sys/sysevent/eventdefs.h> -#include <sys/zfs_delay.h> -#include <sys/sunddi.h> -#include <sys/ctype.h> -#include <sys/disp.h> -#include <sys/trace.h> -#include <sys/procfs_list.h> -#include <sys/mod.h> -#include <sys/uio_impl.h> -#include <sys/zfs_context_os.h> -#else /* _KERNEL || _STANDALONE */ - -#define _SYS_MUTEX_H -#define _SYS_RWLOCK_H -#define _SYS_CONDVAR_H -#define _SYS_VNODE_H -#define _SYS_VFS_H -#define _SYS_SUNDDI_H -#define _SYS_CALLB_H - -#include <stdio.h> -#include <stdlib.h> -#include <stddef.h> -#include <stdarg.h> -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <string.h> -#include <pthread.h> -#include <setjmp.h> -#include <assert.h> -#include <umem.h> -#include <limits.h> -#include <atomic.h> -#include <dirent.h> -#include <time.h> -#include <ctype.h> -#include <signal.h> -#include <sys/mman.h> -#include <sys/types.h> -#include <sys/cred.h> -#include <sys/sysmacros.h> -#include <sys/resource.h> -#include <sys/byteorder.h> -#include <sys/list.h> -#include <sys/mod.h> -#include <sys/uio.h> -#include <sys/zfs_debug.h> -#include <sys/kstat.h> -#include <sys/u8_textprep.h> -#include <sys/sysevent.h> -#include <sys/sysevent/eventdefs.h> -#include <sys/sunddi.h> -#include <sys/debug.h> -#include <sys/utsname.h> -#include <sys/trace_zfs.h> - -#include <sys/zfs_context_os.h> - -/* - * Stack - */ - -#define noinline __attribute__((noinline)) -#define likely(x) __builtin_expect((x), 1) -#define unlikely(x) __builtin_expect((x), 0) - -/* - * Debugging - */ - -/* - * Note that we are not using the debugging levels. - */ - -#define CE_CONT 0 /* continuation */ -#define CE_NOTE 1 /* notice */ -#define CE_WARN 2 /* warning */ -#define CE_PANIC 3 /* panic */ -#define CE_IGNORE 4 /* print nothing */ - -/* - * ZFS debugging - */ - -extern void dprintf_setup(int *argc, char **argv); - -extern void cmn_err(int, const char *, ...) - __attribute__((format(printf, 2, 3))); -extern void vcmn_err(int, const char *, va_list) - __attribute__((format(printf, 2, 0))); -extern void panic(const char *, ...) - __attribute__((format(printf, 1, 2), noreturn)); -extern void vpanic(const char *, va_list) - __attribute__((format(printf, 1, 0), noreturn)); - -#define fm_panic panic - -/* - * DTrace SDT probes have different signatures in userland than they do in - * the kernel. If they're being used in kernel code, re-define them out of - * existence for their counterparts in libzpool. - * - * Here's an example of how to use the set-error probes in userland: - * zfs$target:::set-error /arg0 == EBUSY/ {stack();} - * - * Here's an example of how to use DTRACE_PROBE probes in userland: - * If there is a probe declared as follows: - * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn); - * Then you can use it as follows: - * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/ - * {printf("%u %p\n", arg1, arg2);} - */ - -#ifdef DTRACE_PROBE -#undef DTRACE_PROBE -#endif /* DTRACE_PROBE */ -#define DTRACE_PROBE(a) - -#ifdef DTRACE_PROBE1 -#undef DTRACE_PROBE1 -#endif /* DTRACE_PROBE1 */ -#define DTRACE_PROBE1(a, b, c) - -#ifdef DTRACE_PROBE2 -#undef DTRACE_PROBE2 -#endif /* DTRACE_PROBE2 */ -#define DTRACE_PROBE2(a, b, c, d, e) - -#ifdef DTRACE_PROBE3 -#undef DTRACE_PROBE3 -#endif /* DTRACE_PROBE3 */ -#define DTRACE_PROBE3(a, b, c, d, e, f, g) - -#ifdef DTRACE_PROBE4 -#undef DTRACE_PROBE4 -#endif /* DTRACE_PROBE4 */ -#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) - -/* - * Threads. - */ -typedef pthread_t kthread_t; - -#define TS_RUN 0x00000002 -#define TS_JOINABLE 0x00000004 - -#define curthread ((void *)(uintptr_t)pthread_self()) -#define getcomm() "unknown" - -#define thread_create_named(name, stk, stksize, func, arg, len, \ - pp, state, pri) \ - zk_thread_create(name, func, arg, stksize, state) -#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ - zk_thread_create(#func, func, arg, stksize, state) -#define thread_exit() pthread_exit(NULL) -#define thread_join(t) pthread_join((pthread_t)(t), NULL) - -#define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) -/* - * Check if the current thread is a memory reclaim thread. - * Always returns false in userspace (no memory reclaim thread). - */ -#define current_is_reclaim_thread() (0) - -/* in libzpool, p0 exists only to have its address taken */ -typedef struct proc { - uintptr_t this_is_never_used_dont_dereference_it; -} proc_t; - -extern struct proc p0; -#define curproc (&p0) - -#define PS_NONE -1 - -extern kthread_t *zk_thread_create(const char *name, void (*func)(void *), - void *arg, size_t stksize, int state); - -#define issig() (FALSE) - -#define KPREEMPT_SYNC (-1) - -#define kpreempt(x) sched_yield() -#define kpreempt_disable() ((void)0) -#define kpreempt_enable() ((void)0) - -/* - * Mutexes - */ -typedef struct kmutex { - pthread_mutex_t m_lock; - pthread_t m_owner; -} kmutex_t; - -#define MUTEX_DEFAULT 0 -#define MUTEX_NOLOCKDEP MUTEX_DEFAULT -#define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self()) -#define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp) - -extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie); -extern void mutex_destroy(kmutex_t *mp); -extern void mutex_enter(kmutex_t *mp); -extern int mutex_enter_check_return(kmutex_t *mp); -extern void mutex_exit(kmutex_t *mp); -extern int mutex_tryenter(kmutex_t *mp); - -#define NESTED_SINGLE 1 -#define mutex_enter_nested(mp, class) mutex_enter(mp) -#define mutex_enter_interruptible(mp) mutex_enter_check_return(mp) -/* - * RW locks - */ -typedef struct krwlock { - pthread_rwlock_t rw_lock; - pthread_t rw_owner; - uint_t rw_readers; -} krwlock_t; - -typedef int krw_t; - -#define RW_READER 0 -#define RW_WRITER 1 -#define RW_DEFAULT RW_READER -#define RW_NOLOCKDEP RW_READER - -#define RW_READ_HELD(rw) ((rw)->rw_readers > 0) -#define RW_WRITE_HELD(rw) pthread_equal((rw)->rw_owner, pthread_self()) -#define RW_LOCK_HELD(rw) (RW_READ_HELD(rw) || RW_WRITE_HELD(rw)) - -extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); -extern void rw_destroy(krwlock_t *rwlp); -extern void rw_enter(krwlock_t *rwlp, krw_t rw); -extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); -extern int rw_tryupgrade(krwlock_t *rwlp); -extern void rw_exit(krwlock_t *rwlp); -#define rw_downgrade(rwlp) do { } while (0) - -/* - * Credentials - */ -extern uid_t crgetuid(cred_t *cr); -extern uid_t crgetruid(cred_t *cr); -extern gid_t crgetgid(cred_t *cr); -extern int crgetngroups(cred_t *cr); -extern gid_t *crgetgroups(cred_t *cr); - -/* - * Condition variables - */ -typedef pthread_cond_t kcondvar_t; - -#define CV_DEFAULT 0 -#define CALLOUT_FLAG_ABSOLUTE 0x2 - -extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); -extern void cv_destroy(kcondvar_t *cv); -extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); -extern int cv_wait_sig(kcondvar_t *cv, kmutex_t *mp); -extern int cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); -extern int cv_timedwait_hires(kcondvar_t *cvp, kmutex_t *mp, hrtime_t tim, - hrtime_t res, int flag); -extern void cv_signal(kcondvar_t *cv); -extern void cv_broadcast(kcondvar_t *cv); - -#define cv_timedwait_io(cv, mp, at) cv_timedwait(cv, mp, at) -#define cv_timedwait_idle(cv, mp, at) cv_timedwait(cv, mp, at) -#define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at) -#define cv_wait_io(cv, mp) cv_wait(cv, mp) -#define cv_wait_idle(cv, mp) cv_wait(cv, mp) -#define cv_wait_io_sig(cv, mp) cv_wait_sig(cv, mp) -#define cv_timedwait_sig_hires(cv, mp, t, r, f) \ - cv_timedwait_hires(cv, mp, t, r, f) -#define cv_timedwait_idle_hires(cv, mp, t, r, f) \ - cv_timedwait_hires(cv, mp, t, r, f) - -/* - * Thread-specific data - */ -#define tsd_get(k) pthread_getspecific(k) -#define tsd_set(k, v) pthread_setspecific(k, v) -#define tsd_create(kp, d) pthread_key_create((pthread_key_t *)kp, d) -#define tsd_destroy(kp) /* nothing */ -#ifdef __FreeBSD__ -typedef off_t loff_t; -#endif - -/* - * kstat creation, installation and deletion - */ -extern kstat_t *kstat_create(const char *, int, - const char *, const char *, uchar_t, ulong_t, uchar_t); -extern void kstat_install(kstat_t *); -extern void kstat_delete(kstat_t *); -extern void kstat_set_raw_ops(kstat_t *ksp, - int (*headers)(char *buf, size_t size), - int (*data)(char *buf, size_t size, void *data), - void *(*addr)(kstat_t *ksp, loff_t index)); - -/* - * procfs list manipulation - */ - -typedef struct procfs_list { - void *pl_private; - kmutex_t pl_lock; - list_t pl_list; - uint64_t pl_next_id; - size_t pl_node_offset; -} procfs_list_t; - -#ifndef __cplusplus -struct seq_file { }; -void seq_printf(struct seq_file *m, const char *fmt, ...); - -typedef struct procfs_list_node { - list_node_t pln_link; - uint64_t pln_id; -} procfs_list_node_t; - -void procfs_list_install(const char *module, - const char *submodule, - const char *name, - mode_t mode, - procfs_list_t *procfs_list, - int (*show)(struct seq_file *f, void *p), - int (*show_header)(struct seq_file *f), - int (*clear)(procfs_list_t *procfs_list), - size_t procfs_list_node_off); -void procfs_list_uninstall(procfs_list_t *procfs_list); -void procfs_list_destroy(procfs_list_t *procfs_list); -void procfs_list_add(procfs_list_t *procfs_list, void *p); -#endif - -/* - * Kernel memory - */ -#define KM_SLEEP UMEM_NOFAIL -#define KM_PUSHPAGE KM_SLEEP -#define KM_NOSLEEP UMEM_DEFAULT -#define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */ -#define KMC_NODEBUG UMC_NODEBUG -#define KMC_KVMEM 0x0 -#define KMC_RECLAIMABLE 0x0 -#define kmem_alloc(_s, _f) umem_alloc(_s, _f) -#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) -#define kmem_free(_b, _s) umem_free(_b, _s) -#define vmem_alloc(_s, _f) kmem_alloc(_s, _f) -#define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f) -#define vmem_free(_b, _s) kmem_free(_b, _s) -#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ - umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) -#define kmem_cache_destroy(_c) umem_cache_destroy(_c) -#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) -#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) -#define kmem_debugging() 0 -#define kmem_cache_reap_now(_c) umem_cache_reap_now(_c); -#define kmem_cache_set_move(_c, _cb) /* nothing */ -#define POINTER_INVALIDATE(_pp) /* nothing */ -#define POINTER_IS_VALID(_p) 0 - -typedef umem_cache_t kmem_cache_t; - -typedef enum kmem_cbrc { - KMEM_CBRC_YES, - KMEM_CBRC_NO, - KMEM_CBRC_LATER, - KMEM_CBRC_DONT_NEED, - KMEM_CBRC_DONT_KNOW -} kmem_cbrc_t; - -/* - * Task queues - */ - -#define TASKQ_NAMELEN 31 - -typedef uintptr_t taskqid_t; -typedef void (task_func_t)(void *); - -typedef struct taskq_ent { - struct taskq_ent *tqent_next; - struct taskq_ent *tqent_prev; - task_func_t *tqent_func; - void *tqent_arg; - uintptr_t tqent_flags; -} taskq_ent_t; - -typedef struct taskq { - char tq_name[TASKQ_NAMELEN + 1]; - kmutex_t tq_lock; - krwlock_t tq_threadlock; - kcondvar_t tq_dispatch_cv; - kcondvar_t tq_wait_cv; - kthread_t **tq_threadlist; - int tq_flags; - int tq_active; - int tq_nthreads; - int tq_nalloc; - int tq_minalloc; - int tq_maxalloc; - kcondvar_t tq_maxalloc_cv; - int tq_maxalloc_wait; - taskq_ent_t *tq_freelist; - taskq_ent_t tq_task; -} taskq_t; - -#define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */ - -#define TASKQ_PREPOPULATE 0x0001 -#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ -#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ -#define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ -#define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ - -#define TQ_SLEEP KM_SLEEP /* Can block for memory */ -#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ -#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ -#define TQ_FRONT 0x08 /* Queue in front */ - -#define TASKQID_INVALID ((taskqid_t)0) - -extern taskq_t *system_taskq; -extern taskq_t *system_delay_taskq; - -extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); -extern taskq_t *taskq_create_synced(const char *, int, pri_t, int, int, uint_t, - kthread_t ***); -#define taskq_create_proc(a, b, c, d, e, p, f) \ - (taskq_create(a, b, c, d, e, f)) -#define taskq_create_sysdc(a, b, d, e, p, dc, f) \ - ((void) sizeof (dc), taskq_create(a, b, maxclsyspri, d, e, f)) -extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); -extern taskqid_t taskq_dispatch_delay(taskq_t *, task_func_t, void *, uint_t, - clock_t); -extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t, - taskq_ent_t *); -extern int taskq_empty_ent(taskq_ent_t *); -extern void taskq_init_ent(taskq_ent_t *); -extern void taskq_destroy(taskq_t *); -extern void taskq_wait(taskq_t *); -extern void taskq_wait_id(taskq_t *, taskqid_t); -extern void taskq_wait_outstanding(taskq_t *, taskqid_t); -extern int taskq_member(taskq_t *, kthread_t *); -extern taskq_t *taskq_of_curthread(void); -extern int taskq_cancel_id(taskq_t *, taskqid_t); -extern void system_taskq_init(void); -extern void system_taskq_fini(void); - -#define XVA_MAPSIZE 3 -#define XVA_MAGIC 0x78766174 - -extern char *vn_dumpdir; -#define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ - -typedef struct xoptattr { - inode_timespec_t xoa_createtime; /* Create time of file */ - uint8_t xoa_archive; - uint8_t xoa_system; - uint8_t xoa_readonly; - uint8_t xoa_hidden; - uint8_t xoa_nounlink; - uint8_t xoa_immutable; - uint8_t xoa_appendonly; - uint8_t xoa_nodump; - uint8_t xoa_settable; - uint8_t xoa_opaque; - uint8_t xoa_av_quarantined; - uint8_t xoa_av_modified; - uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; - uint8_t xoa_reparse; - uint8_t xoa_offline; - uint8_t xoa_sparse; -} xoptattr_t; - -typedef struct vattr { - uint_t va_mask; /* bit-mask of attributes */ - u_offset_t va_size; /* file size in bytes */ -} vattr_t; - - -typedef struct xvattr { - vattr_t xva_vattr; /* Embedded vattr structure */ - uint32_t xva_magic; /* Magic Number */ - uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ - uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ - uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ - uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ - xoptattr_t xva_xoptattrs; /* Optional attributes */ -} xvattr_t; - -typedef struct vsecattr { - uint_t vsa_mask; /* See below */ - int vsa_aclcnt; /* ACL entry count */ - void *vsa_aclentp; /* pointer to ACL entries */ - int vsa_dfaclcnt; /* default ACL entry count */ - void *vsa_dfaclentp; /* pointer to default ACL entries */ - size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ -} vsecattr_t; - -#define AT_MODE 0x00002 -#define AT_UID 0x00004 -#define AT_GID 0x00008 -#define AT_FSID 0x00010 -#define AT_NODEID 0x00020 -#define AT_NLINK 0x00040 -#define AT_SIZE 0x00080 -#define AT_ATIME 0x00100 -#define AT_MTIME 0x00200 -#define AT_CTIME 0x00400 -#define AT_RDEV 0x00800 -#define AT_BLKSIZE 0x01000 -#define AT_NBLOCKS 0x02000 -#define AT_SEQ 0x08000 -#define AT_XVATTR 0x10000 - -#define CRCREAT 0 - -#define F_FREESP 11 -#define FIGNORECASE 0x80000 /* request case-insensitive lookups */ - -/* - * Random stuff - */ -#define ddi_get_lbolt() (gethrtime() >> 23) -#define ddi_get_lbolt64() (gethrtime() >> 23) -#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ - -#define ddi_time_before(a, b) (a < b) -#define ddi_time_after(a, b) ddi_time_before(b, a) -#define ddi_time_before_eq(a, b) (!ddi_time_after(a, b)) -#define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a) - -#define ddi_time_before64(a, b) (a < b) -#define ddi_time_after64(a, b) ddi_time_before64(b, a) -#define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b)) -#define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a) - -extern void delay(clock_t ticks); - -#define SEC_TO_TICK(sec) ((sec) * hz) -#define MSEC_TO_TICK(msec) (howmany((hrtime_t)(msec) * hz, MILLISEC)) -#define USEC_TO_TICK(usec) (howmany((hrtime_t)(usec) * hz, MICROSEC)) -#define NSEC_TO_TICK(nsec) (howmany((hrtime_t)(nsec) * hz, NANOSEC)) - -#define max_ncpus 64 -#define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN)) - -/* - * Process priorities as defined by setpriority(2) and getpriority(2). - */ -#define minclsyspri 19 -#define defclsyspri 0 -/* Write issue taskq priority. */ -#define wtqclsyspri -19 -#define maxclsyspri -20 - -#define CPU_SEQID ((uintptr_t)pthread_self() & (max_ncpus - 1)) -#define CPU_SEQID_UNSTABLE CPU_SEQID - -#define kcred NULL -#define CRED() NULL - -#define crhold(cr) ((void)cr) -#define crfree(cr) ((void)cr) - -#define ptob(x) ((x) * PAGESIZE) - -#define NN_DIVISOR_1000 (1U << 0) -#define NN_NUMBUF_SZ (6) - -extern uint64_t physmem; -extern const char *random_path; -extern const char *urandom_path; - -extern int highbit64(uint64_t i); -extern int lowbit64(uint64_t i); -extern int random_get_bytes(uint8_t *ptr, size_t len); -extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); - -static __inline__ uint32_t -random_in_range(uint32_t range) -{ - uint32_t r; - - ASSERT(range != 0); - - if (range == 1) - return (0); - - (void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r)); - - return (r % range); -} - -extern void kernel_init(int mode); -extern void kernel_fini(void); -extern void random_init(void); -extern void random_fini(void); - -struct spa; -extern void show_pool_stats(struct spa *); -extern int handle_tunable_option(const char *, boolean_t); - -typedef struct callb_cpr { - kmutex_t *cc_lockp; -} callb_cpr_t; - -#define CALLB_CPR_INIT(cp, lockp, func, name) { \ - (cp)->cc_lockp = lockp; \ -} - -#define CALLB_CPR_SAFE_BEGIN(cp) { \ - ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ -} - -#define CALLB_CPR_SAFE_END(cp, lockp) { \ - ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ -} - -#define CALLB_CPR_EXIT(cp) { \ - ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ - mutex_exit((cp)->cc_lockp); \ -} - -#define zone_dataset_visible(x, y) (1) -#define INGLOBALZONE(z) (1) -extern uint32_t zone_get_hostid(void *zonep); - -extern char *kmem_vasprintf(const char *fmt, va_list adx); -extern char *kmem_asprintf(const char *fmt, ...); -#define kmem_strfree(str) kmem_free((str), strlen(str) + 1) -#define kmem_strdup(s) strdup(s) - -#ifndef __cplusplus -extern int kmem_scnprintf(char *restrict str, size_t size, - const char *restrict fmt, ...); -#endif - -/* - * Hostname information - */ -extern int ddi_strtoull(const char *str, char **nptr, int base, - u_longlong_t *result); - -typedef struct utsname utsname_t; -extern utsname_t *utsname(void); - -/* ZFS Boot Related stuff. */ - -struct _buf { - intptr_t _fd; -}; - -struct bootstat { - uint64_t st_size; -}; - -typedef struct ace_object { - uid_t a_who; - uint32_t a_access_mask; - uint16_t a_flags; - uint16_t a_type; - uint8_t a_obj_type[16]; - uint8_t a_inherit_obj_type[16]; -} ace_object_t; - - -#define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 -#define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 -#define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 -#define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 - -extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); -extern int zfs_secpolicy_rename_perms(const char *from, const char *to, - cred_t *cr); -extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); -extern int secpolicy_zfs(const cred_t *cr); -extern zoneid_t getzoneid(void); - -/* SID stuff */ -typedef struct ksiddomain { - uint_t kd_ref; - uint_t kd_len; - char *kd_name; -} ksiddomain_t; - -ksiddomain_t *ksid_lookupdomain(const char *); -void ksiddomain_rele(ksiddomain_t *); - -#define DDI_SLEEP KM_SLEEP -#define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \ - sysevent_post_event(_c, _d, _b, "libzpool", _e, _f) - -#define zfs_sleep_until(wakeup) \ - do { \ - hrtime_t delta = wakeup - gethrtime(); \ - struct timespec ts; \ - ts.tv_sec = delta / NANOSEC; \ - ts.tv_nsec = delta % NANOSEC; \ - (void) nanosleep(&ts, NULL); \ - } while (0) - -typedef int fstrans_cookie_t; - -extern fstrans_cookie_t spl_fstrans_mark(void); -extern void spl_fstrans_unmark(fstrans_cookie_t); -extern int kmem_cache_reap_active(void); - - -/* - * Kernel modules - */ -#define __init -#define __exit - -#endif /* _KERNEL || _STANDALONE */ - -#ifdef __cplusplus -}; -#endif - -#endif /* _SYS_ZFS_CONTEXT_H */ |