/* * Copyright (c) 2000-2011 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ /* * Copyright (c) 1982, 1986, 1989, 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)user.h 8.2 (Berkeley) 9/23/93 */ #ifndef _SYS_USER_H_ #define _SYS_USER_H_ #include <sys/appleapiopts.h> #ifndef KERNEL /* stuff that *used* to be included by user.h, or is now needed */ #include <errno.h> #include <sys/time.h> #include <sys/resource.h> #include <sys/ucred.h> #include <sys/uio.h> #endif #ifdef XNU_KERNEL_PRIVATE #include <sys/resourcevar.h> #include <sys/signalvar.h> #endif #include <sys/vm.h> /* XXX */ #include <sys/sysctl.h> #ifdef KERNEL #ifdef BSD_KERNEL_PRIVATE #include <sys/pthread_internal.h> /* for uu_kwe entry */ #endif /* BSD_KERNEL_PRIVATE */ #ifdef __APPLE_API_PRIVATE #include <sys/eventvar.h> #if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE) /* * VFS context structure (part of uthread) */ struct vfs_context { thread_t vc_thread; /* pointer to Mach thread */ kauth_cred_t vc_ucred; /* per thread credential */ }; #endif /* !__LP64 || XNU_KERNEL_PRIVATE */ #ifdef BSD_KERNEL_PRIVATE /* XXX Deprecated: xnu source compatability */ #define uu_ucred uu_context.vc_ucred struct label; /* MAC label dummy struct */ #define MAXTHREADNAMESIZE 64 /* * Per-thread U area. */ struct uthread { /* syscall parameters, results and catches */ u_int64_t uu_arg[8]; /* arguments to current system call */ int *uu_ap; /* pointer to arglist */ int uu_rval[2]; /* thread exception handling */ int uu_exception; mach_exception_code_t uu_code; /* ``code'' to trap */ mach_exception_subcode_t uu_subcode; char uu_cursig; /* p_cursig for exc. */ /* support for syscalls which use continuations */ struct _select { u_int32_t *ibits, *obits; /* bits to select on */ uint nbytes; /* number of bytes in ibits and obits */ u_int64_t abstime; int poll; int error; int count; int _reserved1; // UNUSED: avoid changing size for now char * wql; } uu_select; /* saved state for select() */ /* to support kevent continuations */ union { struct _kqueue_scan { kevent_callback_t call; /* per-event callback */ kqueue_continue_t cont; /* whole call continuation */ uint64_t deadline; /* computed deadline for operation */ void *data; /* caller's private data */ } ss_kqueue_scan; /* saved state for kevent_scan() */ struct _kevent { struct _kqueue_scan scan;/* space for the generic data */ struct fileproc *fp; /* fileproc we hold iocount on */ int fd; /* filedescriptor for kq */ int32_t *retval; /* place to store return val */ user_addr_t eventlist; /* user-level event list address */ size_t eventsize; /* kevent or kevent64_s */ int eventcount; /* user-level event count */ int eventout; /* number of events output */ } ss_kevent; /* saved state for kevent() */ } uu_kevent; struct _kauth { user_addr_t message; /* message in progress */ } uu_kauth; /* internal support for continuation framework */ int (*uu_continuation)(int); int uu_pri; int uu_timo; caddr_t uu_wchan; /* sleeping thread wait channel */ const char *uu_wmesg; /* ... wait message */ int uu_flag; struct proc * uu_proc; thread_t uu_thread; void * uu_userstate; wait_queue_set_t uu_wqset; /* cached across select calls */ size_t uu_allocsize; /* ...size of select cache */ sigset_t uu_siglist; /* signals pending for the thread */ sigset_t uu_sigwait; /* sigwait on this thread*/ sigset_t uu_sigmask; /* signal mask for the thread */ sigset_t uu_oldmask; /* signal mask saved before sigpause */ struct vfs_context uu_context; /* thread + cred */ sigset_t uu_vforkmask; /* saved signal mask during vfork */ TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */ struct kaudit_record *uu_ar; /* audit record */ struct task* uu_aio_task; /* target task for async io */ u_int32_t uu_network_lock_held; /* network support for pf locking */ lck_mtx_t *uu_mtx; TAILQ_ENTRY(uthread) uu_throttlelist; /* List of uthreads currently throttled */ int uu_on_throttlelist; int uu_lowpri_window; boolean_t uu_throttle_bc; void * uu_throttle_info; /* pointer to throttled I/Os info */ struct kern_sigaltstack uu_sigstk; int uu_defer_reclaims; vnode_t uu_vreclaims; int uu_notrigger; /* XXX - flag for autofs */ vnode_t uu_cdir; /* per thread CWD */ int uu_dupfd; /* fd in fdesc_open/dupfdopen */ #ifdef JOE_DEBUG int uu_iocount; int uu_vpindex; void * uu_vps[32]; void * uu_pcs[32][10]; #endif #if CONFIG_DTRACE siginfo_t t_dtrace_siginfo; uint32_t t_dtrace_errno; /* Most recent errno */ uint8_t t_dtrace_stop; /* indicates a DTrace desired stop */ uint8_t t_dtrace_sig; /* signal sent via DTrace's raise() */ uint64_t t_dtrace_resumepid; /* DTrace's pidresume() pid */ union __tdu { struct __tds { uint8_t _t_dtrace_on; /* hit a fasttrap tracepoint */ uint8_t _t_dtrace_step; /* about to return to kernel */ uint8_t _t_dtrace_ret; /* handling a return probe */ uint8_t _t_dtrace_ast; /* saved ast flag */ #if __sol64 || defined(__APPLE__) uint8_t _t_dtrace_reg; /* modified register */ #endif } _tds; u_int32_t _t_dtrace_ft; /* bitwise or of these flags */ } _tdu; #define t_dtrace_ft _tdu._t_dtrace_ft #define t_dtrace_on _tdu._tds._t_dtrace_on #define t_dtrace_step _tdu._tds._t_dtrace_step #define t_dtrace_ret _tdu._tds._t_dtrace_ret #define t_dtrace_ast _tdu._tds._t_dtrace_ast #if __sol64 || defined(__APPLE__) #define t_dtrace_reg _tdu._tds._t_dtrace_reg #endif user_addr_t t_dtrace_pc; /* DTrace saved pc from fasttrap */ user_addr_t t_dtrace_npc; /* DTrace next pc from fasttrap */ user_addr_t t_dtrace_scrpc; /* DTrace per-thread scratch location */ user_addr_t t_dtrace_astpc; /* DTrace return sequence location */ struct dtrace_ptss_page_entry* t_dtrace_scratch; /* scratch space entry */ #if __sol64 || defined(__APPLE__) uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */ #endif void * t_dtrace_syscall_args; #endif /* CONFIG_DTRACE */ void * uu_threadlist; char * pth_name; struct ksyn_waitq_element uu_kwe; /* user for pthread synch */ struct label * uu_label; /* MAC label */ }; typedef struct uthread * uthread_t; /* Definition of uu_flag */ #define UT_SAS_OLDMASK 0x00000001 /* need to restore mask before pause */ #define UT_NO_SIGMASK 0x00000002 /* exited thread; invalid sigmask */ #define UT_NOTCANCELPT 0x00000004 /* not a cancelation point */ #define UT_CANCEL 0x00000008 /* thread marked for cancel */ #define UT_CANCELED 0x00000010 /* thread cancelled */ #define UT_CANCELDISABLE 0x00000020 /* thread cancel disabled */ #define UT_ALTSTACK 0x00000040 /* this thread has alt stack for signals */ #define UT_THROTTLE_IO 0x00000080 /* this thread issues throttle I/O */ #define UT_PASSIVE_IO 0x00000100 /* this thread issues passive I/O */ #define UT_PROCEXIT 0x00000200 /* this thread completed the proc exit */ #define UT_RAGE_VNODES 0x00000400 /* rapid age any vnodes created by this thread */ /* 0x00000800 unused, used to be UT_BACKGROUND */ #define UT_BACKGROUND_TRAFFIC_MGT 0x00001000 /* background traffic is regulated */ #define UT_VFORK 0x02000000 /* thread has vfork children */ #define UT_SETUID 0x04000000 /* thread is settugid() */ #define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */ #endif /* BSD_KERNEL_PRIVATE */ #endif /* __APPLE_API_PRIVATE */ #endif /* KERNEL */ /* * Per process structure containing data that isn't needed in core * when the process isn't running (esp. when swapped out). * This structure may or may not be at the same kernel address * in all processes. */ struct user { /* NOT USED ANYMORE */ }; #endif /* !_SYS_USER_H_ */