/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2018 Apple 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,
- * 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 */
/*-
*/
#ifndef _SYS_PROC_H_
-#define _SYS_PROC_H_
+#define _SYS_PROC_H_
+#include <sys/appleapiopts.h>
#include <sys/cdefs.h>
-
-#include <sys/select.h> /* For struct selinfo. */
+#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. */
+#ifdef XNU_KERNEL_PRIVATE
+#include <mach/coalition.h> /* COALITION_NUM_TYPES */
+#endif
+
+#ifndef KERNEL
+#include <Availability.h>
+#endif
+
+#if defined(XNU_KERNEL_PRIVATE) || !defined(KERNEL)
+
+struct session;
+struct pgrp;
+struct proc;
+struct proc_ident;
+
+/* Exported fields for kern sysctls */
+struct extern_proc {
+ 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. */
+ 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 */
+ caddr_t user_stack; /* where user stack was allocated */
+ void *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 */
+ 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. */
+ int p_siglist; /* DEPRECATED. */
+ struct vnode *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];
+ struct pgrp *p_pgrp; /* Pointer to process group. */
+ struct user *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. */
+ struct rusage *p_ru; /* Exit information. XXX */
};
-/*
- * One structure allocated per process group.
+
+/* Status values. */
+#define SIDL 1 /* Process being created by fork. */
+#define SRUN 2 /* Currently runnable. */
+#define SSLEEP 3 /* Sleeping on an address. */
+#define SSTOP 4 /* Process debugging or suspension. */
+#define SZOMB 5 /* Awaiting collection by parent. */
+
+/* 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. */
+#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_DEFER_ALWAYS 0x00000400 /* defer going to idle-exit after every dirty->clean transition.
+ * For legacy jetsam policy only. This is the default with the other policies.*/
+
+#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 */
+
+#ifdef KERNEL
+__BEGIN_DECLS
+
+extern proc_t kernproc;
+
+extern int proc_is_classic(proc_t p);
+extern bool proc_is_exotic(proc_t p);
+extern bool proc_is_alien(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 uint64_t proc_selfcsflags(void);
+/* this routine populates the given flags param with the csflags of the given process. Returns 0 on success, -1 on error. */
+extern int proc_csflags(proc_t p, uint64_t* flags);
+/* 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
*/
-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 */
-};
+void proc_name(int pid, char * buf, int size);
+/* returns the 32-byte name if it exists, otherwise returns the 16-byte name */
+extern char *proc_best_name(proc_t p);
+/* 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);
+/* find a process with a given process identity */
+extern proc_t proc_find_ident(struct proc_ident const *i);
+/* 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 the original pid of the parent of a given process */
+extern int proc_original_ppid(proc_t);
+/* returns the start time of the given process */
+extern int proc_starttime(proc_t, struct timeval *);
+/* returns the platform (macos, ios, watchos, tvos, ...) of the given process */
+extern uint32_t proc_platform(const proc_t);
+/* returns the minimum sdk version used by the current process */
+extern uint32_t proc_min_sdk(proc_t);
+/* returns the sdk version used by the current process */
+extern uint32_t proc_sdk(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);
+/* returns TRUE if a sync EXC_RESOURCE should be sent for the process */
+extern boolean_t proc_send_synchronous_EXC_RESOURCE(proc_t p);
+
+/* this routine returns 1 if the process is running with a 64bit address space, else 0 */
+extern int proc_is64bit(proc_t);
+/* this routine returns 1 if the process is running with a 64bit register state, else 0 */
+extern int proc_is64bit_data(proc_t);
+/* this routine returns 1 if the process is initproc */
+extern int proc_isinitproc(proc_t);
+/* is this process exiting? */
+extern int proc_exiting(proc_t);
+/* returns whether the process has started down proc_exit() */
+extern int proc_in_teardown(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);
+/* returns 1 if the process is tainted by uid or gid changes,e else 0 */
+extern int proc_issetugid(proc_t p);
+
+extern int proc_tbe(proc_t);
+
+/*!
+ * @function proc_gettty
+ * @abstract Copies the associated tty vnode for a given process if it exists. The caller needs to decrement the iocount of the vnode.
+ * @return 0 on success. ENOENT if the process has no associated TTY. EINVAL if arguments are NULL or vnode_getwithvid fails.
+ */
+extern int proc_gettty(proc_t p, vnode_t *vp);
-/*
- * Description of a process.
+/* this routine populates the associated tty device for a given process if it exists, returns 0 on success or else returns EINVAL */
+extern int proc_gettty_dev(proc_t p, dev_t *dev);
+
+/*!
+ * @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);
+
+/*!
+ * @function proc_sessionid
+ * @abstract Get the process session id for the passed-in process.
+ * @param p Process whose session id to grab.
+ * @return session id of current process.
+ */
+pid_t proc_sessionid(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 proc_t proc_parent(proc_t);
+extern void proc_parent_audit_token(proc_t, audit_token_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.
*
- * 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.
+ * EINVAL if state is NULL.
*/
-struct proc {
- LIST_ENTRY(proc) p_list; /* List of all processes. */
+extern int proc_pidbackgrounded(pid_t pid, uint32_t* state);
- /* 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). */
+/*
+ * This returns an unique 64bit id of a given process.
+ * Caller needs to hold proper reference on the
+ * passed in process strucutre.
+ */
+extern uint64_t proc_uniqueid(proc_t);
-#define p_ucred p_cred->pc_ucred
-#define p_rlimit p_limit->pl_rlimit
+/* unique 64bit id for process's original parent */
+extern uint64_t proc_puniqueid(proc_t);
- int p_flag; /* P_* flags. */
- char p_stat; /* S* process status. */
- char p_pad1[3];
+extern void proc_set_responsible_pid(proc_t target_proc, pid_t responsible_pid);
- 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. */
+/* return 1 if process is forcing case-sensitive HFS+ access, 0 for default */
+extern int proc_is_forcing_hfs_case_sensitivity(proc_t);
-/* The following fields are all zeroed upon creation in fork. */
-#define p_startzero p_oppid
+/* return true if the process is translated, false for default */
+extern boolean_t proc_is_translated(proc_t);
- pid_t p_oppid; /* Save parent pid during ptrace. XXX */
- int p_dupfd; /* Sideways return value from fdopen. XXX */
+/* true if the process ignores errors from content protection APIs */
+extern bool proc_ignores_content_protection(proc_t proc);
- /* 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;
-
-/* The following fields are all copied upon creation in fork. */
-#define p_startcopy p_sigmask
-
- 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. */
-#if DIAGNOSTIC
-#if SIGNAL_DEBUG
- unsigned int lockpc[8];
- unsigned int unlockpc[8];
-#endif /* SIGNAL_DEBUG */
-#endif /* DIAGNOSTIC */
-};
+/* true if the file system shouldn't update mtime for operations by the process */
+extern bool proc_skip_mtime_update(proc_t proc);
-/* Exported fields for kern sysctls */
-struct extern_proc {
- struct proc *p_forw; /* Doubly-linked run/sleep queue. */
- struct proc *p_back;
- struct vmspace *p_vmspace; /* Address space. */
- struct sigacts *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 */
- caddr_t user_stack; /* where user stack was allocated */
- void *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 */
- 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. */
- int p_siglist; /* Signals arrived but not delivered. */
- 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_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. */
- struct user *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. */
- struct rusage *p_ru; /* Exit information. XXX */
+/*!
+ * @function proc_exitstatus
+ * @abstract KPI to determine a process's exit status.
+ * @discussion This function is not safe to call if the process could be
+ * concurrently stopped or started, but it can be called from a
+ * mpo_proc_notify_exit callback.
+ * @param p The process to be queried.
+ * @return Value in the same format as wait()'s output parameter.
+ */
+extern int proc_exitstatus(proc_t p);
+
+#endif /* KERNEL_PRIVATE */
+
+#ifdef XNU_KERNEL_PRIVATE
+
+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 bool proc_is_traced(proc_t p);
+
+extern void proc_coalitionids(proc_t, uint64_t[COALITION_NUM_TYPES]);
+
+#ifdef CONFIG_32BIT_TELEMETRY
+extern void proc_log_32bit_telemetry(proc_t p);
+#endif /* CONFIG_32BIT_TELEMETRY */
+extern uint64_t get_current_unique_pid(void);
+#endif /* XNU_KERNEL_PRIVATE*/
+
+#ifdef KERNEL_PRIVATE
+/* If buf argument is NULL, the necessary length to allocate will be set in buflen */
+extern int proc_selfexecutableargs(uint8_t *buf, size_t *buflen);
+extern off_t proc_getexecutableoffset(proc_t p);
+extern vnode_t proc_getexecutablevnode(proc_t); /* Returned with iocount, use vnode_put() to drop */
+extern int networking_memstatus_callout(proc_t p, uint32_t);
+
+/* System call filtering for BSD syscalls, mach traps and kobject routines. */
+#define SYSCALL_MASK_UNIX 0
+#define SYSCALL_MASK_MACH 1
+#define SYSCALL_MASK_KOBJ 2
+
+#define SYSCALL_FILTER_CALLBACK_VERSION 1
+typedef int (*syscall_filter_cbfunc_t)(proc_t p, int num);
+typedef int (*kobject_filter_cbfunc_t)(proc_t p, int msgid, int idx);
+struct syscall_filter_callbacks {
+ int version;
+ const syscall_filter_cbfunc_t unix_filter_cbfunc;
+ const syscall_filter_cbfunc_t mach_filter_cbfunc;
+ const kobject_filter_cbfunc_t kobj_filter_cbfunc;
};
+typedef struct syscall_filter_callbacks * syscall_filter_cbs_t;
-#define p_session p_pgrp->pg_session
-#define p_pgid p_pgrp->pg_id
+extern int proc_set_syscall_filter_callbacks(syscall_filter_cbs_t callback);
+extern int proc_set_syscall_filter_index(int which, int num, int index);
+extern size_t proc_get_syscall_filter_mask_size(int which);
+extern int proc_set_syscall_filter_mask(proc_t p, int which, unsigned char *maskptr, size_t masklen);
-/* Status values. */
-#define SIDL 1 /* Process being created by fork. */
-#define SRUN 2 /* Currently runnable. */
-#define SSLEEP 3 /* Sleeping on an address. */
-#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. */
+extern int proc_set_filter_message_flag(proc_t p, boolean_t flag);
+extern int proc_get_filter_message_flag(proc_t p, boolean_t *flag);
-/* Should be moved to machine-dependent areas. */
-#define P_OWEUPC 0x08000 /* Owe process an addupc() call at next ast. */
+#endif /* KERNEL_PRIVATE */
-/* 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 ??? */
+__END_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 */
+#endif /* KERNEL */
-/*
- * 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.
- */
-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. */
-};
+#ifdef 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))
+/* Values for pid_shutdown_sockets */
+#define SHUTDOWN_SOCKET_LEVEL_DISCONNECT_SVC 0x00000001
+#define SHUTDOWN_SOCKET_LEVEL_DISCONNECT_ALL 0x00000002
#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
-/*
- * 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);
+__API_AVAILABLE(macos(11.3), ios(14.5), tvos(14.5), watchos(7.3))
+int task_inspect_for_pid(unsigned int target_tport, int pid, unsigned int *t); /* Returns task inspect port */
+__API_AVAILABLE(macos(11.3), ios(14.5), tvos(14.5), watchos(7.3))
+int task_read_for_pid(unsigned int target_tport, int pid, unsigned int *t); /* Returns task read port */
+
+#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
-#endif /* KERNEL */
+#endif /* !KERNEL */
+
+/* Entitlement to allow non-root processes to suspend/resume any task */
+#define PROCESS_RESUME_SUSPEND_ENTITLEMENT "com.apple.private.process.suspend-resume.any"
+
+#endif /* PRIVATE */
-#endif /* !_SYS_PROC_H_ */
+#endif /* !_SYS_PROC_H_ */
projects / apple / xnu.git / blobdiff