xnu-4570.31.3.tar.gz

[apple/xnu.git] / bsd / sys / proc.h

diff --git a/bsd/sys/proc.h b/bsd/sys/proc.h
index c6ce52227c8c9f8345e37ceaa59dc5a98d5ed42a..7878ff6442b3042bc625526e71ee790138a78228 100644 (file)
--- a/bsd/sys/proc.h
+++ b/bsd/sys/proc.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @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,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
 /*-


@@ -63,153 +69,42 @@
 #ifndef _SYS_PROC_H_
 #define        _SYS_PROC_H_
 
 #ifndef _SYS_PROC_H_
 #define        _SYS_PROC_H_
 

+#include <sys/appleapiopts.h>

 #include <sys/cdefs.h>
 #include <sys/cdefs.h>

-

 #include <sys/select.h>                        /* For struct selinfo. */
 #include <sys/queue.h>
 #include <sys/lock.h>
 #include <sys/param.h>
 #include <sys/select.h>                        /* For struct selinfo. */
 #include <sys/queue.h>
 #include <sys/lock.h>
 #include <sys/param.h>

+#include <sys/event.h>
+#include <sys/time.h>
+#ifdef KERNEL
+#include <sys/kernel_types.h>
+#include <uuid/uuid.h>
+#endif
+#include <mach/boolean.h>

 
 

-/*
- * One structure allocated per session.
- */
-struct session {
-       int     s_count;                /* Ref cnt; pgrps in session. */
-       struct  proc *s_leader;         /* Session leader. */
-       struct  vnode *s_ttyvp;         /* Vnode of controlling terminal. */
-       struct  tty *s_ttyp;            /* Controlling terminal. */
-       char    s_login[MAXLOGNAME];    /* Setlogin() name. */
-};
-
-/*
- * One structure allocated per process group.
- */
-struct pgrp {
-       LIST_ENTRY(pgrp) pg_hash;       /* Hash chain. */
-       LIST_HEAD(, proc) pg_members;   /* Pointer to pgrp members. */
-       struct  session *pg_session;    /* Pointer to session. */
-       pid_t   pg_id;                  /* Pgrp id. */
-       int     pg_jobc;        /* # procs qualifying pgrp for job control */
-};
-
-/*
- * 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. */
-
-       /* substructures: */
-       struct  pcred *p_cred;          /* Process owner's identity. */
-       struct  filedesc *p_fd;         /* Ptr to open files structure. */
-       struct  pstats *p_stats;        /* Accounting/statistics (PROC ONLY). */
-       struct  plimit *p_limit;        /* Process limits. */
-       struct  sigacts *p_sigacts;     /* Signal actions, state (PROC ONLY). */
-
-#define        p_ucred         p_cred->pc_ucred
-#define        p_rlimit        p_limit->pl_rlimit
-
-       int     p_flag;                 /* P_* flags. */
-       char    p_stat;                 /* S* process status. */
-       char    p_pad1[3];
-
-       pid_t   p_pid;                  /* Process identifier. */
-       LIST_ENTRY(proc) p_pglist;      /* List of processes in pgrp. */
-       struct  proc *p_pptr;           /* Pointer to parent process. */
-       LIST_ENTRY(proc) p_sibling;     /* List of sibling processes. */
-       LIST_HEAD(, proc) p_children;   /* Pointer to list of children. */
-
-/* The following fields are all zeroed upon creation in fork. */
-#define        p_startzero     p_oppid
-
-       pid_t   p_oppid;         /* Save parent pid during ptrace. XXX */
-       int     p_dupfd;         /* Sideways return value from fdopen. XXX */
-
-       /* 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 */
-       void    *p_wchan;        /* Sleep address. */
-       char    *p_wmesg;        /* Reason for sleep. */
-       u_int   p_swtime;        /* Time swapped in or out. */
-       u_int   p_slptime;       /* Time since last blocked. */
-
-       struct  itimerval p_realtimer;  /* Alarm timer. */
-       struct  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. */
-       struct  vnode *p_tracep;        /* Trace to vnode. */
-
-       sigset_t p_siglist;             /* Signals arrived but not delivered. */
-
-       struct  vnode *p_textvp;        /* Vnode of executable. */
-
-/* End area that is zeroed on creation. */
-#define        p_endzero       p_hash.le_next
-
-       /*
-        * Not copied, not zero'ed.
-        * Belongs after p_pid, but here to avoid shifting proc elements.
-        */
-       LIST_ENTRY(proc) p_hash;        /* Hash chain. */
-        TAILQ_HEAD( ,eventqelt) p_evlist;
+#ifdef XNU_KERNEL_PRIVATE
+#include <mach/coalition.h>            /* COALITION_NUM_TYPES */
+#endif

 
 

-/* The following fields are all copied upon creation in fork. */
-#define        p_startcopy     p_sigmask
+#if defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL)

 
 

-       sigset_t p_sigmask;     /* Current signal mask. */
-       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];
-
-       struct  pgrp *p_pgrp;   /* Pointer to process group. */
-
-/* End area that is copied on creation. */
-#define        p_endcopy       p_xstat
-       
-       u_short p_xstat;        /* Exit status for wait; also stop signal. */
-       u_short p_acflag;       /* Accounting flags. */
-       struct  rusage *p_ru;   /* Exit information. XXX */
-
-       int     p_debugger;     /* 1: can exec set-bit programs if suser */
-
-       void    *task;                  /* corresponding task */
-       void    *sigwait_thread;        /* 'thread' holding sigwait */
-       struct lock__bsd__ signal_lock; /* multilple thread prot for signals*/
-       boolean_t        sigwait;       /* indication to suspend */
-       void    *exit_thread;           /* Which thread is exiting? */
-       caddr_t user_stack;             /* where user stack was allocated */
-       void * exitarg;                 /* exit arg for proc terminate */
-       void * vm_shm;                  /* for sysV shared memory */
-       sigset_t p_sigpending;  /* pended Signals as traced process is blocked. */
-       int             p_vforkcnt;             /* number of outstanding vforks */
-    void *  p_vforkact;     /* activation running this vfork proc */
-#if DIAGNOSTIC
-#if SIGNAL_DEBUG
-       unsigned int lockpc[8];
-       unsigned int unlockpc[8];
-#endif /* SIGNAL_DEBUG */
-#endif /* DIAGNOSTIC */
-};
+struct session;
+struct pgrp;
+struct proc;

 
 /* Exported fields for kern sysctls */
 struct extern_proc {
 
 /* Exported fields for kern sysctls */
 struct extern_proc {

-       struct  proc *p_forw;           /* Doubly-linked run/sleep queue. */
-       struct  proc *p_back;
+       union {
+               struct {
+                       struct  proc *__p_forw; /* Doubly-linked run/sleep queue. */
+                       struct  proc *__p_back;
+               } p_st1;
+               struct timeval __p_starttime;   /* process start time */
+       } p_un;
+#define p_forw p_un.p_st1.__p_forw
+#define p_back p_un.p_st1.__p_back
+#define p_starttime p_un.__p_starttime

        struct  vmspace *p_vmspace;     /* Address space. */
        struct  sigacts *p_sigacts;     /* Signal actions, state (PROC ONLY). */
        int     p_flag;                 /* P_* flags. */
        struct  vmspace *p_vmspace;     /* Address space. */
        struct  sigacts *p_sigacts;     /* Signal actions, state (PROC ONLY). */
        int     p_flag;                 /* P_* flags. */


@@ -237,10 +132,10 @@ struct extern_proc {
        u_quad_t p_iticks;              /* Statclock hits processing intr. */
        int     p_traceflag;            /* Kernel trace points. */
        struct  vnode *p_tracep;        /* Trace to vnode. */
        u_quad_t p_iticks;              /* Statclock hits processing intr. */
        int     p_traceflag;            /* Kernel trace points. */
        struct  vnode *p_tracep;        /* Trace to vnode. */

-       int     p_siglist;              /* Signals arrived but not delivered. */
+       int     p_siglist;              /* DEPRECATED. */

        struct  vnode *p_textvp;        /* Vnode of executable. */
        int     p_holdcnt;              /* If non-zero, don't swap. */
        struct  vnode *p_textvp;        /* Vnode of executable. */
        int     p_holdcnt;              /* If non-zero, don't swap. */

-       sigset_t p_sigmask;     /* Current signal mask. */
+       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. */
        sigset_t p_sigignore;   /* Signals being ignored. */
        sigset_t p_sigcatch;    /* Signals being caught by user. */
        u_char  p_priority;     /* Process priority. */


@@ -254,8 +149,6 @@ struct extern_proc {
        struct  rusage *p_ru;   /* Exit information. XXX */
 };
 
        struct  rusage *p_ru;   /* Exit information. XXX */
 };
 

-#define        p_session       p_pgrp->pg_session
-#define        p_pgid          p_pgrp->pg_id

 
 /* Status values. */
 #define        SIDL    1               /* Process being created by fork. */
 
 /* Status values. */
 #define        SIDL    1               /* Process being created by fork. */


@@ -264,119 +157,250 @@ struct extern_proc {
 #define        SSTOP   4               /* Process debugging or suspension. */
 #define        SZOMB   5               /* Awaiting collection by parent. */
 
 #define        SSTOP   4               /* Process debugging or suspension. */
 #define        SZOMB   5               /* Awaiting collection by parent. */
 

-/* These flags are kept in p_flags. */
-#define        P_ADVLOCK       0x00001 /* Process may hold a POSIX advisory lock. */
-#define        P_CONTROLT      0x00002 /* Has a controlling terminal. */
-#define        P_INMEM         0x00004 /* Loaded into memory. */
-#define        P_NOCLDSTOP     0x00008 /* No SIGCHLD when children stop. */
-#define        P_PPWAIT        0x00010 /* Parent is waiting for child to exec/exit. */
-#define        P_PROFIL        0x00020 /* Has started profiling. */
-#define        P_SELECT        0x00040 /* Selecting; wakeup/waiting danger. */
-#define        P_SINTR         0x00080 /* Sleep is interruptible. */
-#define        P_SUGID         0x00100 /* Had set id privileges since last exec. */
-#define        P_SYSTEM        0x00200 /* System proc: no sigs, stats or swapping. */
-#define        P_TIMEOUT       0x00400 /* Timing out during sleep. */
-#define        P_TRACED        0x00800 /* Debugged process being traced. */
-#define        P_WAITED        0x01000 /* Debugging process has waited for child. */
-#define        P_WEXIT         0x02000 /* Working on exiting. */
-#define        P_EXEC          0x04000 /* Process called exec. */
-
-/* Should probably be changed into a hold count. */
-#define        P_NOSWAP        0x08000 /* Another flag to prevent swap out. */
-#define        P_PHYSIO        0x10000 /* Doing physical I/O. */
+/* These flags are kept in extern_proc.p_flag. */
+#define        P_ADVLOCK       0x00000001      /* Process may hold POSIX adv. lock */
+#define        P_CONTROLT      0x00000002      /* Has a controlling terminal */
+#define        P_LP64          0x00000004      /* Process is LP64 */
+#define        P_NOCLDSTOP     0x00000008      /* No SIGCHLD when children stop */
+
+#define        P_PPWAIT        0x00000010      /* Parent waiting for chld exec/exit */
+#define        P_PROFIL        0x00000020      /* Has started profiling */
+#define        P_SELECT        0x00000040      /* Selecting; wakeup/waiting danger */
+#define        P_CONTINUED     0x00000080      /* Process was stopped and continued */
+
+#define        P_SUGID         0x00000100      /* Has set privileges since last exec */
+#define        P_SYSTEM        0x00000200      /* Sys proc: no sigs, stats or swap */
+#define        P_TIMEOUT       0x00000400      /* Timing out during sleep */
+#define        P_TRACED        0x00000800      /* Debugged process being traced */
+
+#define        P_DISABLE_ASLR  0x00001000      /* Disable address space layout randomization */
+#define        P_WEXIT         0x00002000      /* Working on exiting */
+#define        P_EXEC          0x00004000      /* Process called exec. */

 
 /* Should be moved to machine-dependent areas. */
 
 /* Should be moved to machine-dependent areas. */

-#define        P_OWEUPC        0x08000 /* Owe process an addupc() call at next ast. */
+#define        P_OWEUPC        0x00008000      /* Owe process an addupc() call at next ast. */
+
+#define        P_AFFINITY      0x00010000      /* xxx */
+#define        P_TRANSLATED    0x00020000      /* xxx */
+#define        P_CLASSIC       P_TRANSLATED    /* xxx */
+
+#define        P_DELAYIDLESLEEP 0x00040000     /* Process is marked to delay idle sleep on disk IO */
+#define        P_CHECKOPENEVT  0x00080000      /* check if a vnode has the OPENEVT flag set on open */
+
+#define        P_DEPENDENCY_CAPABLE    0x00100000      /* process is ok to call vfs_markdependency() */
+#define        P_REBOOT        0x00200000      /* Process called reboot() */
+#define        P_RESV6         0x00400000      /* used to be P_TBE */
+#define        P_RESV7         0x00800000      /* (P_SIGEXC)signal exceptions */
+
+#define        P_THCWD         0x01000000      /* process has thread cwd  */
+#define        P_RESV9         0x02000000      /* (P_VFORK)process has vfork children */
+#define        P_ADOPTPERSONA  0x04000000      /* process adopted a persona (used to be P_NOATTACH) */
+#define        P_RESV11        0x08000000      /* (P_INVFORK) proc in vfork */
+
+#define        P_NOSHLIB       0x10000000      /* no shared libs are in use for proc */
+                                       /* flag set on exec */
+#define        P_FORCEQUOTA    0x20000000      /* Force quota for root */
+#define        P_NOCLDWAIT     0x40000000      /* No zombies when chil procs exit */
+#define        P_NOREMOTEHANG  0x80000000      /* Don't hang on remote FS ops */
+
+#define        P_INMEM         0               /* Obsolete: retained for compilation */
+#define        P_NOSWAP        0               /* Obsolete: retained for compilation */
+#define        P_PHYSIO        0               /* Obsolete: retained for compilation */
+#define        P_FSTRACE       0               /* Obsolete: retained for compilation */
+#define        P_SSTEP         0               /* Obsolete: retained for compilation */
+
+#define P_DIRTY_TRACK                           0x00000001      /* track dirty state */
+#define P_DIRTY_ALLOW_IDLE_EXIT                 0x00000002      /* process can be idle-exited when clean */
+#define P_DIRTY_DEFER                           0x00000004      /* defer initial opt-in to idle-exit */
+#define P_DIRTY                                 0x00000008      /* process is dirty */
+#define P_DIRTY_SHUTDOWN                        0x00000010      /* process is dirty during shutdown */
+#define P_DIRTY_TERMINATED                      0x00000020      /* process has been marked for termination */
+#define P_DIRTY_BUSY                            0x00000040      /* serialization flag */
+#define P_DIRTY_MARKED                          0x00000080      /* marked dirty previously */
+#define P_DIRTY_AGING_IN_PROGRESS               0x00000100      /* aging in one of the 'aging bands' */
+#define P_DIRTY_LAUNCH_IN_PROGRESS              0x00000200      /* launch is in progress */
+
+#define P_DIRTY_IS_DIRTY                        (P_DIRTY | P_DIRTY_SHUTDOWN)
+#define P_DIRTY_IDLE_EXIT_ENABLED               (P_DIRTY_TRACK|P_DIRTY_ALLOW_IDLE_EXIT)
+
+#endif /* XNU_KERNEL_PRIVATE || !KERNEL */

 
 

-/* XXX Not sure what to do with these, yet. */
-#define        P_FSTRACE       0x10000 /* tracing via file system (elsewhere?) */
-#define        P_SSTEP         0x20000 /* process needs single-step fixup ??? */
+#ifdef KERNEL
+__BEGIN_DECLS

 
 

-#define        P_WAITING       0x0040000       /* process has a wait() in progress */
-#define        P_KDEBUG        0x0080000       /* kdebug tracing is on for this process */
-#define        P_TTYSLEEP      0x0100000       /* blocked due to SIGTTOU or SIGTTIN */
-#define        P_REBOOT        0x0200000       /* Process called reboot() */
-#define        P_TBE           0x0400000       /* Process is TBE */
-#define        P_SIGTHR        0x0800000       /* signal pending handling thread scheduled */
-#define        P_BTRACE        0x1000000       /* process is being branch traced */
-#define        P_VFORK         0x2000000       /* process has vfork children */
-#define P_NOATTACH     0x4000000
-#define        P_INVFORK       0x8000000       /* proc in vfork */
+extern proc_t kernproc;
+
+extern int proc_is_classic(proc_t p);
+proc_t current_proc_EXTERNAL(void);
+
+extern int     msleep(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, struct timespec * ts );
+extern void    wakeup(void *chan);
+extern void wakeup_one(caddr_t chan);
+
+/* proc kpis */
+/* this routine returns the pid of the current process */
+extern int proc_selfpid(void);
+/* this routine returns the pid of the parent of the current process */
+extern int proc_selfppid(void);
+/* this routine returns the csflags of the current process */
+extern int proc_selfcsflags(void);
+/* this routine returns sends a signal signum to the process identified by the pid */
+extern void proc_signal(int pid, int signum);
+/* this routine checks whether any signal identified by the mask are pending in the  process identified by the pid. The check is  on all threads of the process. */
+extern int proc_issignal(int pid, sigset_t mask);
+/* this routine returns 1 if the pid1 is inferior of pid2 */
+extern int proc_isinferior(int pid1, int pid2);
+/* this routine copies the process's name of the executable to the passed in buffer. It
+ * is always null terminated. The size of the buffer is to be passed in as well. This
+ * routine is to be used typically for debugging
+ */
+void proc_name(int pid, char * buf, int size);
+/* This routine is simillar to proc_name except it returns for current process */
+void proc_selfname(char * buf, int size);
+
+/* find a process with a given pid. This comes with a reference which needs to be dropped by proc_rele */
+extern proc_t proc_find(int pid);
+/* returns a handle to current process which is referenced. The reference needs to be dropped with proc_rele */
+extern proc_t proc_self(void);
+/* releases the held reference on the process */
+extern int proc_rele(proc_t p);
+/* returns the pid of the given process */
+extern int proc_pid(proc_t);
+/* returns the pid of the parent of a given process */
+extern int proc_ppid(proc_t);
+/* returns 1 if the process is marked for no remote hangs */
+extern int proc_noremotehang(proc_t);
+/* returns 1 if the process is marked for force quota */
+extern int proc_forcequota(proc_t);
+/* returns 1 if the process is chrooted */
+extern int proc_chrooted(proc_t);
+
+/* this routine returns 1 if the process is running with 64bit address space, else 0 */
+extern int proc_is64bit(proc_t);
+/* is this process exiting? */
+extern int proc_exiting(proc_t);
+/* this routine returns error if the process is not one with super user privileges */
+int proc_suser(proc_t p);
+/* returns the cred assicaited with the process; temporary api */
+kauth_cred_t proc_ucred(proc_t p);
+
+extern int proc_tbe(proc_t);
+
+/*!
+ @function proc_selfpgrpid
+ @abstract Get the process group id for the current process, as with proc_pgrpid().
+ @return pgrpid of current process.
+ */
+pid_t proc_selfpgrpid(void);

 
 

+/*!
+ @function proc_pgrpid
+ @abstract Get the process group id for the passed-in process.
+ @param p Process whose pgrpid to grab.
+ @return pgrpid for "p".
+ */
+pid_t proc_pgrpid(proc_t p);
+
+#ifdef KERNEL_PRIVATE
+// mark a process as being allowed to call vfs_markdependency()
+void bsd_set_dependency_capable(task_t task);
+#ifdef __arm__
+static inline int IS_64BIT_PROCESS(__unused proc_t p) { return 0; }
+#else
+extern int IS_64BIT_PROCESS(proc_t);
+#endif /* __arm__ */
+
+extern int     tsleep(void *chan, int pri, const char *wmesg, int timo);
+extern int     msleep1(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, u_int64_t timo);
+
+task_t proc_task(proc_t);
+extern int proc_pidversion(proc_t);
+extern uint32_t proc_persona_id(proc_t);
+extern uint32_t proc_getuid(proc_t);
+extern uint32_t proc_getgid(proc_t);
+extern int proc_getcdhash(proc_t, unsigned char *);
+
+/*!
+ @function    proc_pidbackgrounded
+ @abstract    KPI to determine if a process is currently backgrounded.
+ @discussion  The process may move into or out of background state at any time,
+              so be prepared for this value to be outdated immediately.
+ @param pid   PID of the process to be queried.
+ @param state Pointer to a value which will be set to 1 if the process
+              is currently backgrounded, 0 otherwise.
+ @return      ESRCH if pid cannot be found or has started exiting.
+
+              EINVAL if state is NULL.
+ */
+extern int proc_pidbackgrounded(pid_t pid, uint32_t* state);

 
 /*
 
 /*

- * Shareable process credentials (always resident).  This includes a reference
- * to the current user credentials as well as real and saved ids that may be
- * used to change ids.
+ * This returns an unique 64bit id of a given process.
+ * Caller needs to hold proper reference on the
+ * passed in process strucutre.

  */
  */

-struct pcred {
-       struct  lock__bsd__ pc_lock;
-       struct  ucred *pc_ucred;        /* Current credentials. */
-       uid_t   p_ruid;                 /* Real user id. */
-       uid_t   p_svuid;                /* Saved effective user id. */
-       gid_t   p_rgid;                 /* Real group id. */
-       gid_t   p_svgid;                /* Saved effective group id. */
-       int     p_refcnt;               /* Number of references. */
-};
+extern uint64_t proc_uniqueid(proc_t);
+
+extern void proc_set_responsible_pid(proc_t target_proc, pid_t responsible_pid);
+
+/* return 1 if process is forcing case-sensitive HFS+ access, 0 for default */
+extern int proc_is_forcing_hfs_case_sensitivity(proc_t);
+
+#endif /* KERNEL_PRIVATE */
+
+#ifdef XNU_KERNEL_PRIVATE
+
+/* unique 64bit id for process's original parent */
+extern uint64_t proc_puniqueid(proc_t);
+
+extern void proc_getexecutableuuid(proc_t, unsigned char *, unsigned long);
+extern int proc_get_originatorbgstate(uint32_t *is_backgrounded);
+
+/* Kernel interface to get the uuid of the originator of the work.*/
+extern int proc_pidoriginatoruuid(uuid_t uuid_buf, uint32_t buffersize);
+
+extern uint64_t proc_was_throttled(proc_t);
+extern uint64_t proc_did_throttle(proc_t);
+
+extern void proc_coalitionids(proc_t, uint64_t [COALITION_NUM_TYPES]);
+
+#endif /* XNU_KERNEL_PRIVATE*/

 
 

-#define pcred_readlock(p)      lockmgr(&(p)->p_cred->pc_lock,          \
-                                               LK_SHARED, 0, (p))
-#define pcred_writelock(p)     lockmgr(&(p)->p_cred->pc_lock,          \
-                                               LK_EXCLUSIVE, 0, (p))
-#define pcred_unlock(p)                lockmgr(&(p)->p_cred->pc_lock,          \
-                                               LK_RELEASE, 0, (p))
+#ifdef KERNEL_PRIVATE
+extern vnode_t proc_getexecutablevnode(proc_t); /* Returned with iocount, use vnode_put() to drop */
+#endif
+
+__END_DECLS
+
+#endif /* KERNEL */
+
+#ifdef PRIVATE
+
+/* Values for pid_shutdown_sockets */
+#define SHUTDOWN_SOCKET_LEVEL_DISCONNECT_SVC           0x00000001
+#define SHUTDOWN_SOCKET_LEVEL_DISCONNECT_ALL           0x00000002

 
 #ifdef KERNEL
 
 #ifdef KERNEL

+#define SHUTDOWN_SOCKET_LEVEL_DISCONNECT_INTERNAL      0x10000000
+#define SHUTDOWN_SOCKET_LEVEL_NECP                     0x20000000
+#define SHUTDOWN_SOCKET_LEVEL_CONTENT_FILTER           0x40000000
+#endif
+
+#ifndef KERNEL

 
 __BEGIN_DECLS
 
 __BEGIN_DECLS

-/*
- * 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".
- */
-#define        PID_MAX         30000
-#define        NO_PID          30001
-
-#define SESS_LEADER(p) ((p)->p_session->s_leader == (p))
-#define        SESSHOLD(s)     ((s)->s_count++)
-#define        SESSRELE(s)     sessrele(s)
-
-#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;
-
-extern int nprocs, maxproc;            /* Current and max number of procs. */
-
-LIST_HEAD(proclist, proc);
-extern struct proclist allproc;                /* List of all processes. */
-extern struct proclist zombproc;       /* List of zombie processes. */
-extern struct proc *initproc, *kernproc;
-
-extern struct  proc *pfind __P((pid_t));       /* Find process by id. */
-extern struct  pgrp *pgfind __P((pid_t));      /* Find process group by id. */
-
-extern int     chgproccnt __P((uid_t uid, int diff));
-extern int     enterpgrp __P((struct proc *p, pid_t pgid, int mksess));
-extern void    fixjobc __P((struct proc *p, struct pgrp *pgrp, int entering));
-extern int     inferior __P((struct proc *p));
-extern int     leavepgrp __P((struct proc *p));
-extern void    mi_switch __P((void));
-extern void    pgdelete __P((struct pgrp *pgrp));
-extern void    sessrele __P((struct session *sess));
-extern void    procinit __P((void));
-extern void    resetpriority __P((struct proc *));
-extern void    setrunnable __P((struct proc *));
-extern void    setrunqueue __P((struct proc *));
-extern int     sleep __P((void *chan, int pri));
-extern int     tsleep __P((void *chan, int pri, char *wmesg, int timo));
-extern int     tsleep0 __P((void *chan, int pri, char *wmesg, int timo, int (*continuation)(int) ));
-extern void    unsleep __P((struct proc *));
-extern void    wakeup __P((void *chan));
+
+int pid_suspend(int pid);
+int pid_resume(int pid);
+
+#if defined(__arm__) || defined(__arm64__)
+int pid_hibernate(int pid);
+#endif /* defined(__arm__) || defined(__arm64__)  */
+int pid_shutdown_sockets(int pid, int level);
+int pid_shutdown_networking(int pid, int level);

 __END_DECLS
 
 __END_DECLS
 

-#endif /* KERNEL */
+#endif /* !KERNEL */
+#endif /* PRIVATE */

 
 #endif /* !_SYS_PROC_H_ */
 
 #endif /* !_SYS_PROC_H_ */