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Cider Isn't Darwin Emulation, Really
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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) 1986, 1989, 1991, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * 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. * * @(#)proc_internal.h 8.15 (Berkeley) 5/19/95 *//* * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */
#ifndef _SYS_PROC_INTERNAL_H_#define _SYS_PROC_INTERNAL_H_
#include <libkern/OSAtomic.h>#include <sys/proc.h>__BEGIN_DECLS#include <kern/locks.h>#if PSYNCH#include <kern/thread_call.h>#endif /* PSYNCH */__END_DECLS
#if DEBUG#define __PROC_INTERNAL_DEBUG 1#endif
/* * The short form for various locks that protect fields in the data structures. * PL = Process Lock * PGL = Process Group Lock * PFDL = Process File Desc Lock * PSL = Process Spin Lock * PPL = Parent Process Lock (planed for later usage) * LL = List Lock * SL = Session Lock*/struct label;
/* * Added by SPARTA, Inc. *//* * Login context. */struct lctx { LIST_ENTRY(lctx) lc_list; /* List of all login contexts. */ LIST_HEAD(, proc) lc_members; /* Pointer to lc members. */ int lc_mc; /* Member Count. */ pid_t lc_id; /* Login context ID. */ lck_mtx_t lc_mtx; /* Mutex to protect members */
struct label *lc_label; /* Login context MAC label. */};
/* * One structure allocated per session. */struct session { int s_count; /* Ref cnt; pgrps in session. (LL) */ struct proc * s_leader; /* Session leader.(static) */ struct vnode * s_ttyvp; /* Vnode of controlling terminal.(SL) */ int s_ttyvid; /* Vnode id of the controlling terminal (SL) */ struct tty * s_ttyp; /* Controlling terminal. (SL + ttyvp != NULL) */ pid_t s_ttypgrpid; /* tty's pgrp id */ pid_t s_sid; /* Session ID (static) */ char s_login[MAXLOGNAME]; /* Setlogin() name.(SL) */ int s_flags; /* Session flags (s_mlock) */ LIST_ENTRY(session) s_hash; /* Hash chain.(LL) */ lck_mtx_t s_mlock; /* mutex lock to protect session */ int s_listflags;};
#define SESSION_NULL (struct session *)0
/* * accessor for s_ttyp which treats it as invalid if s_ttyvp is not valid; * note that s_ttyp is not a reference in the session structre, so it can * become invalid out from under the session if the device is closed, without * this protection. We can't safely make it into a reference without reflexive * close notification of tty devices through cdevsw[]. * * NB: <sys/tty.h> is not in scope and there is not typedef type enforcement, * or '0' below would be 'TTY_NULL'. */#define SESSION_TP(sp) (((sp)->s_ttyvp != 0) ? (sp)->s_ttyp : 0)
/* * Session flags; used to tunnel information to lower layers and line * disciplines, etc. */#define S_DEFAULT 0x00000000 /* No flags set */#define S_NOCTTY 0x00000001 /* Do not associate controlling tty */
#define S_LIST_TERM 1 /* marked for termination */#define S_LIST_DEAD 2 /* already dead *//* * One structure allocated per process group. */struct pgrp { LIST_ENTRY(pgrp) pg_hash; /* Hash chain. (LL) */ LIST_HEAD(, proc) pg_members; /* Pointer to pgrp members. (PGL) */ struct session * pg_session; /* Pointer to session. (LL ) */ pid_t pg_id; /* Pgrp id. (static) */ int pg_jobc; /* # procs qualifying pgrp for job control (PGL) */ int pg_membercnt; /* Number of processes in the pgrocess group (PGL) */ int pg_refcount; /* number of current iterators (LL) */ unsigned int pg_listflags; /* (LL) */ lck_mtx_t pg_mlock; /* mutex lock to protect pgrp */};
#define PGRP_FLAG_TERMINATE 1#define PGRP_FLAG_WAITTERMINATE 2#define PGRP_FLAG_DEAD 4#define PGRP_FLAG_ITERABEGIN 8#define PGRP_FLAG_ITERWAIT 0x10
#define PGRP_NULL (struct pgrp *)0struct proc;
#define PROC_NULL (struct proc *)0
#define PROC_UPDATE_CREDS_ONPROC(p) { \ p->p_uid = kauth_cred_getuid(p->p_ucred); \ p->p_gid = kauth_cred_getgid(p->p_ucred); \ p->p_ruid = kauth_cred_getruid(p->p_ucred); \ p->p_rgid = kauth_cred_getrgid(p->p_ucred); \ p->p_svuid = kauth_cred_getsvuid(p->p_ucred); \ p->p_svgid = kauth_cred_getsvgid(p->p_ucred); \ }/* * Description of a process. * * This structure contains the information needed to manage a thread of * control, known in UN*X as a process; it has references to substructures * containing descriptions of things that the process uses, but may share * with related processes. The process structure and the substructures * are always addressible except for those marked "(PROC ONLY)" below, * which might be addressible only on a processor on which the process * is running. */struct proc { LIST_ENTRY(proc) p_list; /* List of all processes. */
pid_t p_pid; /* Process identifier. (static)*/ void * task; /* corresponding task (static)*/ struct proc * p_pptr; /* Pointer to parent process.(LL) */ pid_t p_ppid; /* process's parent pid number */ pid_t p_pgrpid; /* process group id of the process (LL)*/ uid_t p_uid; gid_t p_gid; uid_t p_ruid; gid_t p_rgid; uid_t p_svuid; gid_t p_svgid; uint64_t p_uniqueid; /* process uniqe ID */
lck_mtx_t p_mlock; /* mutex lock for proc */
char p_stat; /* S* process status. (PL)*/ char p_shutdownstate; char p_kdebug; /* P_KDEBUG eq (CC)*/ char p_btrace; /* P_BTRACE eq (CC)*/
LIST_ENTRY(proc) p_pglist; /* List of processes in pgrp.(PGL) */ LIST_ENTRY(proc) p_sibling; /* List of sibling processes. (LL)*/ LIST_HEAD(, proc) p_children; /* Pointer to list of children. (LL)*/ TAILQ_HEAD( , uthread) p_uthlist; /* List of uthreads (PL) */
LIST_ENTRY(proc) p_hash; /* Hash chain. (LL)*/ TAILQ_HEAD( ,eventqelt) p_evlist; /* (PL) */
lck_mtx_t p_fdmlock; /* proc lock to protect fdesc */
/* substructures: */ kauth_cred_t p_ucred; /* Process owner's identity. (PL) */ struct filedesc *p_fd; /* Ptr to open files structure. (PFDL) */ struct pstats *p_stats; /* Accounting/statistics (PL). */ struct plimit *p_limit; /* Process limits.(PL) */
struct sigacts *p_sigacts; /* Signal actions, state (PL) */ int p_siglist; /* signals captured back from threads */ lck_spin_t p_slock; /* spin lock for itimer/profil protection */
#define p_rlimit p_limit->pl_rlimit
struct plimit *p_olimit; /* old process limits - not inherited by child (PL) */ unsigned int p_flag; /* P_* flags. (atomic bit ops) */ unsigned int p_lflag; /* local flags (PL) */ unsigned int p_listflag; /* list flags (LL) */ unsigned int p_ladvflag; /* local adv flags (atomic) */ int p_refcount; /* number of outstanding users(LL) */ int p_childrencnt; /* children holding ref on parent (LL) */ int p_parentref; /* children lookup ref on parent (LL) */
pid_t p_oppid; /* Save parent pid during ptrace. XXX */ u_int p_xstat; /* Exit status for wait; also stop signal. */
#ifdef _PROC_HAS_SCHEDINFO_ /* may need cleanup, not used */ u_int p_estcpu; /* Time averaged value of p_cpticks.(used by aio and proc_comapre) */ fixpt_t p_pctcpu; /* %cpu for this process during p_swtime (used by aio)*/ u_int p_slptime; /* used by proc_compare */#endif /* _PROC_HAS_SCHEDINFO_ */
struct itimerval p_realtimer; /* Alarm timer. (PSL) */ struct timeval p_rtime; /* Real time.(PSL) */ struct itimerval p_vtimer_user; /* Virtual timers.(PSL) */ struct itimerval p_vtimer_prof; /* (PSL) */
struct timeval p_rlim_cpu; /* Remaining rlim cpu value.(PSL) */ int p_debugger; /* NU 1: can exec set-bit programs if suser */ boolean_t sigwait; /* indication to suspend (PL) */ void *sigwait_thread; /* 'thread' holding sigwait(PL) */ void *exit_thread; /* Which thread is exiting(PL) */ int p_vforkcnt; /* number of outstanding vforks(PL) */ void * p_vforkact; /* activation running this vfork proc)(static) */ int p_fpdrainwait; /* (PFDL) */ pid_t p_contproc; /* last PID to send us a SIGCONT (PL) */
/* Following fields are info from SIGCHLD (PL) */ pid_t si_pid; /* (PL) */ u_int si_status; /* (PL) */ u_int si_code; /* (PL) */ uid_t si_uid; /* (PL) */
void * vm_shm; /* (SYSV SHM Lock) for sysV shared memory */
#if CONFIG_DTRACE user_addr_t p_dtrace_argv; /* (write once, read only after that) */ user_addr_t p_dtrace_envp; /* (write once, read only after that) */ lck_mtx_t p_dtrace_sprlock; /* sun proc lock emulation */ int p_dtrace_probes; /* (PL) are there probes for this proc? */ u_int p_dtrace_count; /* (sprlock) number of DTrace tracepoints */ uint8_t p_dtrace_stop; /* indicates a DTrace-desired stop */ struct dtrace_ptss_page* p_dtrace_ptss_pages; /* (sprlock) list of user ptss pages */ struct dtrace_ptss_page_entry* p_dtrace_ptss_free_list; /* (atomic) list of individual ptss entries */ struct dtrace_helpers* p_dtrace_helpers; /* (dtrace_lock) DTrace per-proc private */ struct dof_ioctl_data* p_dtrace_lazy_dofs; /* (sprlock) unloaded dof_helper_t's */#endif /* CONFIG_DTRACE */
/* XXXXXXXXXXXXX BCOPY'ed on fork XXXXXXXXXXXXXXXX *//* The following fields are all copied upon creation in fork. */#define p_startcopy p_argslen
u_int p_argslen; /* Length of process arguments. */ int p_argc; /* saved argc for sysctl_procargs() */ user_addr_t user_stack; /* where user stack was allocated */ struct vnode *p_textvp; /* Vnode of executable. */ off_t p_textoff; /* offset in executable vnode */
sigset_t p_sigmask; /* DEPRECATED */ sigset_t p_sigignore; /* Signals being ignored. (PL) */ sigset_t p_sigcatch; /* Signals being caught by user.(PL) */
u_char p_priority; /* (NU) Process priority. */ u_char p_resv0; /* (NU) User-priority based on p_cpu and p_nice. */ char p_nice; /* Process "nice" value.(PL) */ u_char p_resv1; /* (NU) User-priority based on p_cpu and p_nice. */
#if CONFIG_MACF int p_mac_enforce; /* MAC policy enforcement control */#endif
char p_comm[MAXCOMLEN+1]; char p_name[(2*MAXCOMLEN)+1]; /* PL */
struct pgrp *p_pgrp; /* Pointer to process group. (LL) */ uint32_t p_csflags; /* flags for codesign (PL) */ uint32_t p_pcaction; /* action for process control on starvation */ uint8_t p_uuid[16]; /* from LC_UUID load command */
#if !CONFIG_EMBEDDED#define PROC_LEGACY_BEHAVIOR_IOTHROTTLE (0x00000001) uint32_t p_legacy_behavior;#endif
/* End area that is copied on creation. *//* XXXXXXXXXXXXX End of BCOPY'ed on fork (AIOLOCK)XXXXXXXXXXXXXXXX */#define p_endcopy p_aio_total_count int p_aio_total_count; /* all allocated AIO requests for this proc */ int p_aio_active_count; /* all unfinished AIO requests for this proc */ TAILQ_HEAD( , aio_workq_entry ) p_aio_activeq; /* active async IO requests */ TAILQ_HEAD( , aio_workq_entry ) p_aio_doneq; /* completed async IO requests */
struct klist p_klist; /* knote list (PL ?)*/
struct rusage *p_ru; /* Exit information. (PL) */ int p_sigwaitcnt; thread_t p_signalholder; thread_t p_transholder;
/* DEPRECATE following field */ u_short p_acflag; /* Accounting flags. */
struct lctx *p_lctx; /* Pointer to login context. */ LIST_ENTRY(proc) p_lclist; /* List of processes in lctx. */ user_addr_t p_threadstart; /* pthread start fn */ user_addr_t p_wqthread; /* pthread workqueue fn */ int p_pthsize; /* pthread size */ user_addr_t p_targconc; /* target concurrency ptr */ void * p_wqptr; /* workq ptr */ int p_wqsize; /* allocated size */ boolean_t p_wqiniting; /* semaphore to serialze wq_open */ lck_spin_t p_wqlock; /* lock to protect work queue */ struct timeval p_start; /* starting time */ void * p_rcall; int p_ractive; int p_idversion; /* version of process identity */ void * p_pthhash; /* pthread waitqueue hash */#if DIAGNOSTIC unsigned int p_fdlock_pc[4]; unsigned int p_fdunlock_pc[4];#if SIGNAL_DEBUG unsigned int lockpc[8]; unsigned int unlockpc[8];#endif /* SIGNAL_DEBUG */#endif /* DIAGNOSTIC */ uint64_t p_dispatchqueue_offset;#if VM_PRESSURE_EVENTS struct timeval vm_pressure_last_notify_tstamp;#endif int p_dirty; /* dirty state */ };
#define PGRPID_DEAD 0xdeaddead
/* p_listflag */ #define P_LIST_DRAIN 0x00000001#define P_LIST_DRAINWAIT 0x00000002#define P_LIST_DRAINED 0x00000004#define P_LIST_DEAD 0x00000008#define P_LIST_WAITING 0x00000010#define P_LIST_EXITED 0x00000040 #define P_LIST_CHILDDRSTART 0x00000080 #define P_LIST_CHILDDRAINED 0x00000100 #define P_LIST_CHILDDRWAIT 0x00000200 #define P_LIST_CHILDLKWAIT 0x00000400 #define P_LIST_DEADPARENT 0x00000800 #define P_LIST_PARENTREFWAIT 0x00001000 #define P_LIST_INCREATE 0x00002000 /* 0x4000 & 0x8000 Not used */#define P_LIST_INHASH 0x00010000 /* process is in hash */#define P_LIST_INPGRP 0x00020000 /* process is in pgrp */#define P_LIST_PGRPTRANS 0x00040000 /* pgrp is getting replaced */#define P_LIST_PGRPTRWAIT 0x00080000 /* wait for pgrp replacement */#define P_LIST_EXITCOUNT 0x00100000 /* counted for process exit */
/* local flags */#define P_LDELAYTERM 0x00000001 /* */#define P_LNOZOMB 0x00000002 /* */#define P_LTERM 0x00000004 /* */ #define P_LEXIT 0x00000008 /* */#define P_LPEXIT 0x00000010#define P_LTRANSCOMMIT 0x00000020 /* process is committed to trans */#define P_LINTRANSIT 0x00000040 /* process in exec or in creation */#define P_LTRANSWAIT 0x00000080 /* waiting for trans to complete */#define P_LVFORK 0x00000100 /* */#define P_LINVFORK 0x00000200 /* */#define P_LTRACED 0x00000400 /* */#define P_LSIGEXC 0x00000800 /* */#define P_LNOATTACH 0x00001000 /* */#define P_LPPWAIT 0x00002000 /* */#define P_LKQWDRAIN 0x00004000#define P_LKQWDRAINWAIT 0x00008000#define P_LKQWDEAD 0x00010000#define P_LLIMCHANGE 0x00020000#define P_LLIMWAIT 0x00040000#define P_LWAITED 0x00080000 #define P_LINSIGNAL 0x00100000 #define P_UNUSED 0x00200000 /* Unused */#define P_LRAGE_VNODES 0x00400000#define P_LREGISTER 0x00800000 /* thread start fns registered */#define P_LVMRSRCOWNER 0x01000000 /* can handle the resource ownership of */#define P_LPTERMINATE 0x02000000 /* can handle the resource ownership of */
/* Process control state for resource starvation */#define P_PCTHROTTLE 1#define P_PCSUSP 2#define P_PCKILL 3#define P_PCMAX 3
/* Process control action state on resrouce starvation */#define PROC_ACTION_MASK 0xffff0000;#define PROC_CONTROL_STATE(p) (p->p_pcaction & P_PCMAX)#define PROC_ACTION_STATE(p) ((p->p_pcaction >> 16) & P_PCMAX)#define PROC_SETACTION_STATE(p) (p->p_pcaction = (PROC_CONTROL_STATE(p) | (PROC_CONTROL_STATE(p) << 16)))#define PROC_RESETACTION_STATE(p) (p->p_pcaction = PROC_CONTROL_STATE(p))
/* additional process flags */#define P_LADVLOCK 0x01
/* defns for proc_iterate */#define PROC_ALLPROCLIST 1 /* walk the allproc list (procs not exited yet) */#define PROC_ZOMBPROCLIST 2 /* walk the zombie list */#define PROC_NOWAITTRANS 4 /* do not wait for transitions (checkdirs only) */ /* defns for pgrp_iterate */ #define PGRP_DROPREF 1#define PGRP_BLOCKITERATE 2 /* return values of the proc iteration callback routine */ #define PROC_RETURNED 0#define PROC_RETURNED_DONE 1#define PROC_CLAIMED 2#define PROC_CLAIMED_DONE 3
/* process creation arguments */#define PROC_CREATE_FORK 0 /* independent child (running) */#define PROC_CREATE_SPAWN 1 /* independent child (suspended) */#define PROC_CREATE_VFORK 2 /* child borrows context */
/* LP64 version of extern_proc. all pointers * grow when we're dealing with a 64-bit process. * WARNING - keep in sync with extern_proc * but use native alignment of 64-bit process. */
#ifdef KERNEL#include <sys/time.h> /* user_timeval, user_itimerval */
#pragma pack(4)struct user32_extern_proc { union { struct { uint32_t __p_forw; /* Doubly-linked run/sleep queue. */ uint32_t __p_back; } p_st1; struct user32_timeval __p_starttime; /* process start time */ } p_un; uint32_t p_vmspace; /* Address space. */ uint32_t p_sigacts; /* Signal actions, state (PROC ONLY). */ int p_flag; /* P_* flags. */ char p_stat; /* S* process status. */ pid_t p_pid; /* Process identifier. */ pid_t p_oppid; /* Save parent pid during ptrace. XXX */ int p_dupfd; /* Sideways return value from fdopen. XXX */ /* Mach related */ uint32_t user_stack; /* where user stack was allocated */ uint32_t exit_thread; /* XXX Which thread is exiting? */ int p_debugger; /* allow to debug */ boolean_t sigwait; /* indication to suspend */ /* scheduling */ u_int p_estcpu; /* Time averaged value of p_cpticks. */ int p_cpticks; /* Ticks of cpu time. */ fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */ uint32_t p_wchan; /* Sleep address. */ uint32_t p_wmesg; /* Reason for sleep. */ u_int p_swtime; /* Time swapped in or out. */ u_int p_slptime; /* Time since last blocked. */ struct user32_itimerval p_realtimer; /* Alarm timer. */ struct user32_timeval p_rtime; /* Real time. */ u_quad_t p_uticks; /* Statclock hits in user mode. */ u_quad_t p_sticks; /* Statclock hits in system mode. */ u_quad_t p_iticks; /* Statclock hits processing intr. */ int p_traceflag; /* Kernel trace points. */ uint32_t p_tracep; /* Trace to vnode. */ int p_siglist; /* DEPRECATED */ uint32_t p_textvp; /* Vnode of executable. */ int p_holdcnt; /* If non-zero, don't swap. */ sigset_t p_sigmask; /* DEPRECATED. */ sigset_t p_sigignore; /* Signals being ignored. */ sigset_t p_sigcatch; /* Signals being caught by user. */ u_char p_priority; /* Process priority. */ u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */ char p_nice; /* Process "nice" value. */ char p_comm[MAXCOMLEN+1]; uint32_t p_pgrp; /* Pointer to process group. */ uint32_t p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */ u_short p_xstat; /* Exit status for wait; also stop signal. */ u_short p_acflag; /* Accounting flags. */ uint32_t p_ru; /* Exit information. XXX */};#pragma pack()struct user64_extern_proc { union { struct { user_addr_t __p_forw; /* Doubly-linked run/sleep queue. */ user_addr_t __p_back; } p_st1; struct user64_timeval __p_starttime; /* process start time */ } p_un; user_addr_t p_vmspace; /* Address space. */ user_addr_t p_sigacts; /* Signal actions, state (PROC ONLY). */ int p_flag; /* P_* flags. */ char p_stat; /* S* process status. */ pid_t p_pid; /* Process identifier. */ pid_t p_oppid; /* Save parent pid during ptrace. XXX */ int p_dupfd; /* Sideways return value from fdopen. XXX */ /* Mach related */ user_addr_t user_stack __attribute((aligned(8))); /* where user stack was allocated */ user_addr_t exit_thread; /* XXX Which thread is exiting? */ int p_debugger; /* allow to debug */ boolean_t sigwait; /* indication to suspend */ /* scheduling */ u_int p_estcpu; /* Time averaged value of p_cpticks. */ int p_cpticks; /* Ticks of cpu time. */ fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */ user_addr_t p_wchan __attribute((aligned(8))); /* Sleep address. */ user_addr_t p_wmesg; /* Reason for sleep. */ u_int p_swtime; /* Time swapped in or out. */ u_int p_slptime; /* Time since last blocked. */ struct user64_itimerval p_realtimer; /* Alarm timer. */ struct user64_timeval p_rtime; /* Real time. */ u_quad_t p_uticks; /* Statclock hits in user mode. */ u_quad_t p_sticks; /* Statclock hits in system mode. */ u_quad_t p_iticks; /* Statclock hits processing intr. */ int p_traceflag; /* Kernel trace points. */ user_addr_t p_tracep __attribute((aligned(8))); /* Trace to vnode. */ int p_siglist; /* DEPRECATED */ user_addr_t p_textvp __attribute((aligned(8))); /* Vnode of executable. */ int p_holdcnt; /* If non-zero, don't swap. */ sigset_t p_sigmask; /* DEPRECATED. */ sigset_t p_sigignore; /* Signals being ignored. */ sigset_t p_sigcatch; /* Signals being caught by user. */ u_char p_priority; /* Process priority. */ u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */ char p_nice; /* Process "nice" value. */ char p_comm[MAXCOMLEN+1]; user_addr_t p_pgrp __attribute((aligned(8))); /* Pointer to process group. */ user_addr_t p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */ u_short p_xstat; /* Exit status for wait; also stop signal. */ u_short p_acflag; /* Accounting flags. */ user_addr_t p_ru __attribute((aligned(8))); /* Exit information. XXX */};#endif /* KERNEL */
/* * We use process IDs <= PID_MAX; PID_MAX + 1 must also fit in a pid_t, * as it is used to represent "no process group". */extern int nprocs, maxproc; /* Current and max number of procs. */extern int maxprocperuid; /* Current number of procs per uid */__private_extern__ int hard_maxproc; /* hard limit */extern unsigned int proc_shutdown_exitcount;
#define PID_MAX 99999#define NO_PID 100000extern lck_mtx_t * proc_list_mlock;extern lck_mtx_t * proc_klist_mlock;
#define BSD_SIMUL_EXECS 33 /* 32 , allow for rounding */#define BSD_PAGEABLE_SIZE_PER_EXEC (NCARGS + PAGE_SIZE + PAGE_SIZE) /* page for apple vars, page for executable header */extern int execargs_cache_size;extern int execargs_free_count;extern vm_offset_t * execargs_cache;
#define SESS_LEADER(p, sessp) ((sessp)->s_leader == (p))
/* Lock and unlock a login context. */#define LCTX_LOCK(lc) lck_mtx_lock(&(lc)->lc_mtx)#define LCTX_UNLOCK(lc) lck_mtx_unlock(&(lc)->lc_mtx)#define LCTX_LOCKED(lc)#define LCTX_LOCK_ASSERT(lc, type)#define ALLLCTX_LOCK lck_mtx_lock(&alllctx_lock)#define ALLLCTX_UNLOCK lck_mtx_unlock(&alllctx_lock)extern lck_mtx_t alllctx_lock;extern lck_grp_t * lctx_lck_grp;extern lck_grp_attr_t * lctx_lck_grp_attr;extern lck_attr_t * lctx_lck_attr;
#define PIDHASH(pid) (&pidhashtbl[(pid) & pidhash])extern LIST_HEAD(pidhashhead, proc) *pidhashtbl;extern u_long pidhash;
#define PGRPHASH(pgid) (&pgrphashtbl[(pgid) & pgrphash])extern LIST_HEAD(pgrphashhead, pgrp) *pgrphashtbl;extern u_long pgrphash;#define SESSHASH(sessid) (&sesshashtbl[(sessid) & sesshash])extern LIST_HEAD(sesshashhead, session) *sesshashtbl;extern u_long sesshash;
extern lck_grp_t * proc_lck_grp;#if CONFIG_FINE_LOCK_GROUPSextern lck_grp_t * proc_mlock_grp;extern lck_grp_t * proc_fdmlock_grp;extern lck_grp_t * proc_slock_grp;#endifextern lck_grp_attr_t * proc_lck_grp_attr;extern lck_attr_t * proc_lck_attr;
LIST_HEAD(proclist, proc);extern struct proclist allproc; /* List of all processes. */extern struct proclist zombproc; /* List of zombie processes. */extern struct proc *initproc;extern void procinit(void) __attribute__((section("__TEXT, initcode")));extern void proc_lock(struct proc *);extern void proc_unlock(struct proc *);extern void proc_spinlock(struct proc *);extern void proc_spinunlock(struct proc *);extern void proc_list_lock(void);extern void proc_list_unlock(void);extern void proc_klist_lock(void);extern void proc_klist_unlock(void);extern void proc_fdlock(struct proc *);extern void proc_fdlock_spin(struct proc *);extern void proc_fdunlock(struct proc *);extern void proc_fdlock_assert(proc_t p, int assertflags);__private_extern__ int proc_core_name(const char *name, uid_t uid, pid_t pid, char *cr_name, size_t cr_name_len);extern int isinferior(struct proc *, struct proc *);__private_extern__ struct proc *pzfind(pid_t); /* Find zombie by id. */__private_extern__ struct proc *proc_find_zombref(pid_t); /* Find zombie by id. */__private_extern__ void proc_drop_zombref(struct proc * p); /* Find zombie by id. */
extern struct lctx *lcfind(pid_t); /* Find a login context by id */extern struct lctx *lccreate(void); /* Create a new login context */
extern int chgproccnt(uid_t uid, int diff);extern void enterlctx(struct proc *p, struct lctx *l, int create);extern void pinsertchild(struct proc *parent, struct proc *child);extern int enterpgrp(struct proc *p, pid_t pgid, int mksess);extern void fixjobc(struct proc *p, struct pgrp *pgrp, int entering);extern int inferior(struct proc *p);extern int leavepgrp(struct proc *p);extern void leavelctx(struct proc *p);extern void resetpriority(struct proc *);extern void setrunnable(struct proc *);extern void setrunqueue(struct proc *);extern int sleep(void *chan, int pri);extern int tsleep0(void *chan, int pri, const char *wmesg, int timo, int (*continuation)(int));extern int tsleep1(void *chan, int pri, const char *wmesg, u_int64_t abstime, int (*continuation)(int));extern int msleep0(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, int timo, int (*continuation)(int));extern void vfork_return(struct proc *child, int32_t *retval, int rval);extern int exit1(struct proc *, int, int *);extern int exit1_internal(struct proc *, int, int *, boolean_t, boolean_t);extern int fork1(proc_t, thread_t *, int);extern void vfork_exit_internal(struct proc *p, int rv, int forced);extern void proc_reparentlocked(struct proc *child, struct proc * newparent, int cansignal, int locked);extern int pgrp_iterate(struct pgrp * pgrp, int flags, int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg);extern int proc_iterate(int flags, int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg);extern int proc_rebootscan(int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg);extern int proc_childrenwalk(proc_t p, int (*callout)(proc_t , void *), void *arg);extern proc_t proc_findinternal(int pid, int funneled);extern proc_t proc_findthread(thread_t thread);extern void proc_refdrain(proc_t);extern void proc_childdrainlocked(proc_t);extern void proc_childdrainstart(proc_t);extern void proc_childdrainend(proc_t);extern void proc_checkdeadrefs(proc_t);struct proc *pfind_locked(pid_t);extern struct pgrp *pgfind(pid_t);extern void pg_rele(struct pgrp * pgrp);extern struct session * session_find_internal(pid_t sessid);extern struct pgrp * proc_pgrp(proc_t);extern struct pgrp * tty_pgrp(struct tty * tp);extern struct pgrp * pgfind_internal(pid_t);extern struct session * proc_session(proc_t);extern void pgrp_lock(struct pgrp * pgrp);extern void pgrp_unlock(struct pgrp * pgrp);extern void session_lock(struct session * sess);extern void session_unlock(struct session * sess);extern struct session * pgrp_session(struct pgrp * pgrp);extern void session_rele(struct session *sess);extern int isbackground(proc_t p, struct tty *tp);extern proc_t proc_parent(proc_t);extern proc_t proc_parentholdref(proc_t);extern int proc_parentdropref(proc_t, int);int itimerfix(struct timeval *tv);int itimerdecr(struct proc * p, struct itimerval *itp, int usec);void proc_signalstart(struct proc *, int locked);void proc_signalend(struct proc *, int locked);int proc_transstart(struct proc *, int locked);void proc_transcommit(struct proc *, int locked);void proc_transend(struct proc *, int locked);int proc_transwait(struct proc *, int locked);void proc_rele_locked(struct proc * p);struct proc *proc_ref_locked(struct proc * p);void proc_knote(struct proc * p, long hint);void proc_knote_drain(struct proc *p);void workqueue_init_lock(proc_t p);void workqueue_destroy_lock(proc_t p);void proc_setregister(proc_t p);void proc_resetregister(proc_t p);/* returns the first thread_t in the process, or NULL XXX for NFS, DO NOT USE */thread_t proc_thread(proc_t);extern int proc_pendingsignals(proc_t, sigset_t);int proc_getpcontrol(int pid, int * pcontrolp);int proc_dopcontrol(proc_t p, void *unused_arg);int proc_resetpcontrol(int pid);extern void proc_removethrottle(proc_t);#if PSYNCHvoid pth_proc_hashinit(proc_t);void pth_proc_hashdelete(proc_t);void pth_global_hashinit(void);extern thread_call_t psynch_thcall;void psynch_wq_cleanup(__unused void * param, __unused void * param1);extern lck_mtx_t * pthread_list_mlock;#endif /* PSYNCH */struct uthread * current_uthread(void);#endif /* !_SYS_PROC_INTERNAL_H_ */