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1fc33becf8b7df36ec427bc98821be1325b0d625
darling/kernel-include/sys/proc_internal.h
Lubos Dolezel 1fc33becf8 Initial commit, some libc modules building
2014-12-04 01:11:22 +01:00

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/*
* Copyright (c) 2000-2010 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) 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 *)0
struct 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 100000
extern 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_GROUPS
extern lck_grp_t * proc_mlock_grp;
extern lck_grp_t * proc_fdmlock_grp;
extern lck_grp_t * proc_slock_grp;
#endif
extern 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 PSYNCH
void 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_ */
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