kern_proc.c File Reference

#include <sys/cdefs.h>
#include "opt_compat.h"
#include "opt_ddb.h"
#include "opt_kdtrace.h"
#include "opt_ktrace.h"
#include "opt_kstack_pages.h"
#include "opt_stack.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/elf.h>
#include <sys/exec.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/loginclass.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/ptrace.h>
#include <sys/refcount.h>
#include <sys/resourcevar.h>
#include <sys/sbuf.h>
#include <sys/sysent.h>
#include <sys/sched.h>
#include <sys/smp.h>
#include <sys/stack.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/filedesc.h>
#include <sys/tty.h>
#include <sys/signalvar.h>
#include <sys/sdt.h>
#include <sys/sx.h>
#include <sys/user.h>
#include <sys/jail.h>
#include <sys/vnode.h>
#include <sys/eventhandler.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_extern.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
#include <vm/uma.h>

Include dependency graph for kern_proc.c:

Go to the source code of this file.

Macros
#define	PROC_AUXV_MAX   256 /* Safety limit on auxv size. */
#define	GET_PS_STRINGS_CHUNK_SZ   256 /* Chunk size (bytes) for ps_strings operations. */

Enumerations
enum	proc_vector_type { PROC_ARG, PROC_ENV, PROC_AUX }

Functions
	__FBSDID ("$BSDSUniX$")
	SDT_PROVIDER_DEFINE (proc)
	SDT_PROBE_DEFINE4 (proc, kernel, ctor, entry,"struct proc *","int","void *","int")
	SDT_PROBE_DEFINE4 (proc, kernel, ctor, return,"struct proc *","int","void *","int")
	SDT_PROBE_DEFINE4 (proc, kernel, dtor, entry,"struct proc *","int","void *","struct thread *")
	SDT_PROBE_DEFINE3 (proc, kernel, dtor, return,"struct proc *","int","void *")
	SDT_PROBE_DEFINE3 (proc, kernel, init, entry,"struct proc *","int","int")
	SDT_PROBE_DEFINE3 (proc, kernel, init, return,"struct proc *","int","int")
	MALLOC_DEFINE (M_PGRP,"pgrp","process group header")
	MALLOC_DEFINE (M_SESSION,"session","session header")
static	MALLOC_DEFINE (M_PROC,"proc","Proc structures")
	MALLOC_DEFINE (M_SUBPROC,"subproc","Proc sub-structures")
static void	doenterpgrp (struct proc *, struct pgrp *)
static void	orphanpg (struct pgrp *pg)
static void	fill_kinfo_aggregate (struct proc *p, struct kinfo_proc *kp)
static void	fill_kinfo_proc_only (struct proc *p, struct kinfo_proc *kp)
static void	fill_kinfo_thread (struct thread *td, struct kinfo_proc *kp, int preferthread)
static void	pgadjustjobc (struct pgrp *pgrp, int entering)
static void	pgdelete (struct pgrp *)
static int	proc_ctor (void *mem, int size, void *arg, int flags)
static void	proc_dtor (void *mem, int size, void *arg)
static int	proc_init (void *mem, int size, int flags)
static void	proc_fini (void *mem, int size)
static void	pargs_free (struct pargs *pa)
static struct proc *	zpfind_locked (pid_t pid)
	SYSCTL_INT (_kern, OID_AUTO, kstack_pages, CTLFLAG_RD,&kstack_pages, 0,"Kernel stack size in pages")
	SYSCTL_INT (_kern, OID_AUTO, proc_vmmap_skip_resident_count, CTLFLAG_RW,&vmmap_skip_res_cnt, 0,"Skip calculation of the pages resident count in kern.proc.vmmap")
	CTASSERT (sizeof(struct kinfo_proc)==KINFO_PROC_SIZE)
void	procinit ()
int	inferior (struct proc *p)
struct proc *	pfind_locked (pid_t pid)
struct proc *	pfind (pid_t pid)
static struct proc *	pfind_tid_locked (pid_t tid)
struct pgrp *	pgfind (pid_t pgid)
int	pget (pid_t pid, int flags, struct proc **pp)
int	enterpgrp (struct proc *p, pid_t pgid, struct pgrp *pgrp, struct session *sess)
int	enterthispgrp (struct proc *p, struct pgrp *pgrp)
int	leavepgrp (struct proc *p)
void	fixjobc (struct proc *p, struct pgrp *pgrp, int entering)
void	sess_hold (struct session *s)
void	sess_release (struct session *s)
void	fill_kinfo_proc (struct proc *p, struct kinfo_proc *kp)
struct pstats *	pstats_alloc (void)
void	pstats_fork (struct pstats *src, struct pstats *dst)
void	pstats_free (struct pstats *ps)
struct proc *	zpfind (pid_t pid)
int	kern_proc_out (struct proc *p, struct sbuf *sb, int flags)
static int	sysctl_out_proc (struct proc *p, struct sysctl_req *req, int flags, int doingzomb)
static int	sysctl_kern_proc (SYSCTL_HANDLER_ARGS)
struct pargs *	pargs_alloc (int len)
void	pargs_hold (struct pargs *pa)
void	pargs_drop (struct pargs *pa)
static int	proc_read_mem (struct thread *td, struct proc *p, vm_offset_t offset, void *buf, size_t len)
static int	proc_read_string (struct thread *td, struct proc *p, const char *sptr, char *buf, size_t len)
static int	get_proc_vector (struct thread *td, struct proc *p, char ***proc_vectorp, size_t *vsizep, enum proc_vector_type type)
static int	get_ps_strings (struct thread *td, struct proc *p, struct sbuf *sb, enum proc_vector_type type)
int	proc_getargv (struct thread *td, struct proc *p, struct sbuf *sb)
int	proc_getenvv (struct thread *td, struct proc *p, struct sbuf *sb)
int	proc_getauxv (struct thread *td, struct proc *p, struct sbuf *sb)
static int	sysctl_kern_proc_args (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_env (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_auxv (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_pathname (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_sv_name (SYSCTL_HANDLER_ARGS)
int	kern_proc_vmmap_out (struct proc *p, struct sbuf *sb)
static int	sysctl_kern_proc_vmmap (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_groups (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_rlimit (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_ps_strings (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_umask (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_osrel (SYSCTL_HANDLER_ARGS)
static int	sysctl_kern_proc_sigtramp (SYSCTL_HANDLER_ARGS)
	SYSCTL_NODE (_kern, KERN_PROC, proc, CTLFLAG_RD, 0,"Process table")
	SYSCTL_PROC (_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc,"S,proc","Return entire process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Return process table, no threads")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_ARGS, args, CTLFLAG_RW|CTLFLAG_ANYBODY|CTLFLAG_MPSAFE, sysctl_kern_proc_args,"Process argument list")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_env,"Process environment")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_auxv,"Process ELF auxiliary vector")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_pathname,"Process executable path")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,"Process syscall vector name (ABI type)")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_GID|KERN_PROC_INC_THREAD), gid_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_PGRP|KERN_PROC_INC_THREAD), pgrp_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_RGID|KERN_PROC_INC_THREAD), rgid_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_SESSION|KERN_PROC_INC_THREAD), sid_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_TTY|KERN_PROC_INC_THREAD), tty_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_UID|KERN_PROC_INC_THREAD), uid_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_RUID|KERN_PROC_INC_THREAD), ruid_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_PID|KERN_PROC_INC_THREAD), pid_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Process table")
static	SYSCTL_NODE (_kern_proc,(KERN_PROC_PROC|KERN_PROC_INC_THREAD), proc_td, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc,"Return process table, no threads")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap,"Process vm map entries")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_groups,"Process groups")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW|CTLFLAG_ANYBODY|CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,"Process resource limits")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,"Process ps_strings location")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_umask,"Process umask")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW|CTLFLAG_ANYBODY|CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,"Process binary osreldate")
static	SYSCTL_NODE (_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD|CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp,"Process signal trampoline location")

Variables
struct pidhashhead *	pidhashtbl
u_long	pidhash
struct pgrphashhead *	pgrphashtbl
u_long	pgrphash
struct proclist	allproc
struct proclist	zombproc
struct sx	allproc_lock
struct sx	proctree_lock
struct mtx	ppeers_lock
uma_zone_t	proc_zone
int	kstack_pages = KSTACK_PAGES
static int	vmmap_skip_res_cnt = 0

Macro Definition Documentation

#define GET_PS_STRINGS_CHUNK_SZ   256 /* Chunk size (bytes) for ps_strings operations. */

Definition at line 1693 of file kern_proc.c.

Referenced by get_ps_strings(), sysctl_kern_proc_args(), sysctl_kern_proc_auxv(), and sysctl_kern_proc_env().

#define PROC_AUXV_MAX   256 /* Safety limit on auxv size. */

Definition at line 1520 of file kern_proc.c.

Referenced by get_proc_vector().

Enumeration Type Documentation

enum proc_vector_type

Enumerator
PROC_ARG
PROC_ENV
PROC_AUX

Definition at line 1522 of file kern_proc.c.

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

CTASSERT

(

sizeof(struct kinfo_proc)

= =KINFO_PROC_SIZE

)

static void doenterpgrp ( struct proc *  p, struct pgrp *  pgrp  )

static

Definition at line 515 of file kern_proc.c.

References fixjobc(), pgdelete(), and proctree_lock.

Referenced by enterpgrp(), and enterthispgrp().

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int enterpgrp	(	struct proc *	p,
		pid_t	pgid,
		struct pgrp *	pgrp,
		struct session *	sess
	)

Definition at line 423 of file kern_proc.c.

References doenterpgrp(), mtx_init(), pgfind(), proctree_lock, and sess_hold().

Referenced by sys_setpgid(), and sys_setsid().

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int enterthispgrp	(	struct proc *	p,
		struct pgrp *	pgrp
	)

Definition at line 488 of file kern_proc.c.

References doenterpgrp(), and proctree_lock.

Referenced by sys_setpgid().

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static void fill_kinfo_aggregate ( struct proc *  p, struct kinfo_proc *  kp  )

static

Definition at line 766 of file kern_proc.c.

References sched_pctcpu().

Referenced by fill_kinfo_proc().

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void fill_kinfo_proc	(	struct proc *	p,
		struct kinfo_proc *	kp
	)

Definition at line 1019 of file kern_proc.c.

References fill_kinfo_aggregate(), fill_kinfo_proc_only(), and fill_kinfo_thread().

Referenced by kern_proc_out().

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static void fill_kinfo_proc_only ( struct proc *  p, struct kinfo_proc *  kp  )

static

Definition at line 788 of file kern_proc.c.

References boottime, calccru(), calcru(), cputick2usec(), hz, jailed(), rufetch(), ticks, timevaladd(), and tty_udev().

Referenced by fill_kinfo_proc().

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static void fill_kinfo_thread ( struct thread *  td, struct kinfo_proc *  kp, int  preferthread  )

static

Definition at line 935 of file kern_proc.c.

References cputick2usec(), hz, rufetchtd(), sched_pctcpu(), and ticks.

Referenced by fill_kinfo_proc(), and kern_proc_out().

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void fixjobc	(	struct proc *	p,
		struct pgrp *	pgrp,
		int	entering
	)

Definition at line 637 of file kern_proc.c.

References pgadjustjobc(), and proctree_lock.

Referenced by doenterpgrp(), and exit1().

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static int get_proc_vector ( struct thread *  td, struct proc *  p, char ***  proc_vectorp, size_t *  vsizep, enum proc_vector_type  type  )

static

Definition at line 1603 of file kern_proc.c.

References free(), malloc(), PROC_ARG, PROC_AUX, PROC_AUXV_MAX, PROC_ENV, and proc_read_mem().

Referenced by get_ps_strings(), and proc_getauxv().

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static int get_ps_strings ( struct thread *  td, struct proc *  p, struct sbuf *  sb, enum proc_vector_type  type  )

static

Definition at line 1696 of file kern_proc.c.

References free(), get_proc_vector(), GET_PS_STRINGS_CHUNK_SZ, proc_read_string(), and sbuf_bcat().

Referenced by proc_getargv(), and proc_getenvv().

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int inferior

(

struct proc *

p

)

Definition at line 266 of file kern_proc.c.

References proc_realparent(), and proctree_lock.

Referenced by sys_setpgid().

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int kern_proc_out	(	struct proc *	p,
		struct sbuf *	sb,
		int	flags
	)

Definition at line 1189 of file kern_proc.c.

References fill_kinfo_proc(), fill_kinfo_thread(), and sbuf_bcat().

Referenced by note_procstat_proc(), and sysctl_out_proc().

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int kern_proc_vmmap_out	(	struct proc *	p,
		struct sbuf *	sb
	)

Definition at line 2148 of file kern_proc.c.

References free(), malloc(), sbuf_bcat(), vmmap_skip_res_cnt, vn_fullpath(), vntype_to_kinfo(), vput(), and vref().

Referenced by note_procstat_vmmap(), and sysctl_kern_proc_vmmap().

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int leavepgrp

(

struct proc *

p

)

Definition at line 554 of file kern_proc.c.

References pgdelete(), and proctree_lock.

Referenced by proc_reap().

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MALLOC_DEFINE	(	M_PGRP	,
		"pgrp"	,
		"process group header"
	)

MALLOC_DEFINE	(	M_SESSION	,
		"session"	,
		"session header"
	)

static MALLOC_DEFINE ( M_PROC  , "proc"  , "Proc structures"    )

static

MALLOC_DEFINE	(	M_SUBPROC	,
		"subproc"	,
		"Proc sub-structures"
	)

static void orphanpg ( struct pgrp *  pg )

static

Definition at line 685 of file kern_proc.c.

References kern_psignal().

Referenced by pgadjustjobc().

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struct pargs* pargs_alloc

(

int

len

)

Definition at line 1436 of file kern_proc.c.

References malloc().

Referenced by do_execve(), and sysctl_kern_proc_args().

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void pargs_drop

(

struct pargs *

pa

)

Definition at line 1464 of file kern_proc.c.

References pargs_free().

Referenced by do_execve(), proc_reap(), and sysctl_kern_proc_args().

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static void pargs_free ( struct pargs *  pa )

static

Definition at line 1448 of file kern_proc.c.

References free().

Referenced by pargs_drop(), and sysctl_kern_proc_args().

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void pargs_hold

(

struct pargs *

pa

)

Definition at line 1455 of file kern_proc.c.

Referenced by do_fork(), and sysctl_kern_proc_args().

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struct proc* pfind

(

pid_t

pid

)

Definition at line 304 of file kern_proc.c.

References allproc_lock, and pfind_locked().

Referenced by cpuset_which(), filt_procattach(), fsetown(), kern_procctl(), kern_ptrace(), sys_getpgid(), sys_getpriority(), sys_getsid(), sys_kill(), sys_ktrace(), sys_rtprio(), sys_setpgid(), sys_setpriority(), sys_sigqueue(), sys_thr_kill2(), and sysctl_out_proc().

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struct proc* pfind_locked

(

pid_t

pid

)

Definition at line 279 of file kern_proc.c.

References allproc_lock.

Referenced by pfind(), and pget().

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static struct proc* pfind_tid_locked ( pid_t  tid )

static

Definition at line 315 of file kern_proc.c.

References allproc_lock.

Referenced by pget().

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static void pgadjustjobc ( struct pgrp *  pgrp, int  entering  )

static

Definition at line 610 of file kern_proc.c.

References orphanpg().

Referenced by fixjobc().

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static void pgdelete ( struct pgrp *  pgrp )

static

Definition at line 576 of file kern_proc.c.

References free(), funsetownlst(), mtx_destroy(), proctree_lock, sess_release(), and tty_rel_pgrp().

Referenced by doenterpgrp(), and leavepgrp().

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int pget	(	pid_t	pid,
		int	flags,
		struct proc **	pp
	)

Definition at line 362 of file kern_proc.c.

References allproc_lock, p_candebug(), p_cansee(), pfind_locked(), pfind_tid_locked(), and zpfind_locked().

Referenced by get_cputime(), kern_clock_getcpuclockid2(), sysctl_kern_proc(), sysctl_kern_proc_args(), sysctl_kern_proc_auxv(), sysctl_kern_proc_env(), sysctl_kern_proc_filedesc(), sysctl_kern_proc_groups(), sysctl_kern_proc_osrel(), sysctl_kern_proc_pathname(), sysctl_kern_proc_ps_strings(), sysctl_kern_proc_rlimit(), sysctl_kern_proc_sigtramp(), sysctl_kern_proc_sv_name(), sysctl_kern_proc_umask(), and sysctl_kern_proc_vmmap().

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struct pgrp* pgfind

(

pid_t

pgid

)

Definition at line 342 of file kern_proc.c.

References proctree_lock.

Referenced by enterpgrp(), fsetown(), gsignal(), kern_procctl(), killpg1(), sys_getpriority(), sys_ktrace(), sys_setpgid(), sys_setpriority(), sys_setsid(), and tty_generic_ioctl().

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static int proc_ctor ( void *  mem, int  size, void *  arg, int  flags  )

static

Definition at line 178 of file kern_proc.c.

Referenced by procinit().

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static void proc_dtor ( void *  mem, int  size, void *  arg  )

static

Definition at line 193 of file kern_proc.c.

Referenced by procinit().

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static void proc_fini ( void *  mem, int  size  )

static

Definition at line 245 of file kern_proc.c.

References ksiginfo_free(), mtx_destroy(), panic(), pstats_free(), and thread_free().

Referenced by procinit().

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int proc_getargv	(	struct thread *	td,
		struct proc *	p,
		struct sbuf *	sb
	)

Definition at line 1744 of file kern_proc.c.

References get_ps_strings(), and PROC_ARG.

Referenced by sysctl_kern_proc_args().

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int proc_getauxv	(	struct thread *	td,
		struct proc *	p,
		struct sbuf *	sb
	)

Definition at line 1758 of file kern_proc.c.

References free(), get_proc_vector(), PROC_AUX, and sbuf_bcat().

Referenced by note_procstat_auxv(), and sysctl_kern_proc_auxv().

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int proc_getenvv	(	struct thread *	td,
		struct proc *	p,
		struct sbuf *	sb
	)

Definition at line 1751 of file kern_proc.c.

References get_ps_strings(), and PROC_ENV.

Referenced by sysctl_kern_proc_env().

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static int proc_init ( void *  mem, int  size, int  flags  )

static

Definition at line 221 of file kern_proc.c.

References cv_init(), mtx_init(), and pstats_alloc().

Referenced by procinit().

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static int proc_read_mem ( struct thread *  td, struct proc *  p, vm_offset_t  offset, void *  buf, size_t  len  )

static

Definition at line 1474 of file kern_proc.c.

References proc_rwmem().

Referenced by get_proc_vector(), and proc_read_string().

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static int proc_read_string ( struct thread *  td, struct proc *  p, const char *  sptr, char *  buf, size_t  len  )

static

Definition at line 1494 of file kern_proc.c.

References proc_read_mem().

Referenced by get_ps_strings().

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void procinit

(

)

Definition at line 158 of file kern_proc.c.

References allproc, allproc_lock, hashinit(), maxproc, mtx_init(), pgrphash, pgrphashtbl, pidhash, pidhashtbl, ppeers_lock, proc_ctor(), proc_dtor(), proc_fini(), proc_init(), proc_zone, proctree_lock, sched_sizeof_proc(), uihashinit(), and zombproc.

Referenced by proc0_init().

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struct pstats* pstats_alloc

(

void

)

Definition at line 1030 of file kern_proc.c.

References malloc().

Referenced by proc0_init(), and proc_init().

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void pstats_fork	(	struct pstats *	src,
		struct pstats *	dst
	)

Definition at line 1040 of file kern_proc.c.

Referenced by do_fork().

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void pstats_free

(

struct pstats *

ps

)

Definition at line 1050 of file kern_proc.c.

References free().

Referenced by proc_fini().

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SDT_PROBE_DEFINE3	(	proc	,
		kernel	,
		dtor	,
		return	,
		"struct proc *"	,
		"int"	,
		"void *"
	)

SDT_PROBE_DEFINE3	(	proc	,
		kernel	,
		init	,
		entry	,
		"struct proc *"	,
		"int"	,
		"int"
	)

SDT_PROBE_DEFINE3	(	proc	,
		kernel	,
		init	,
		return	,
		"struct proc *"	,
		"int"	,
		"int"
	)

SDT_PROBE_DEFINE4	(	proc	,
		kernel	,
		ctor	,
		entry	,
		"struct proc *"	,
		"int"	,
		"void *"	,
		"int"
	)

SDT_PROBE_DEFINE4	(	proc	,
		kernel	,
		ctor	,
		return	,
		"struct proc *"	,
		"int"	,
		"void *"	,
		"int"
	)

SDT_PROBE_DEFINE4	(	proc	,
		kernel	,
		dtor	,
		entry	,
		"struct proc *"	,
		"int"	,
		"void *"	,
		"struct thread *"
	)

SDT_PROVIDER_DEFINE

(

proc

)

void sess_hold

(

struct session *

s

)

Definition at line 709 of file kern_proc.c.

Referenced by enterpgrp(), and tprintf().

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void sess_release

(

struct session *

s

)

Definition at line 716 of file kern_proc.c.

References free(), mtx_destroy(), and tty_rel_sess().

Referenced by pgdelete(), and tprintf().

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SYSCTL_INT	(	_kern	,
		OID_AUTO	,
		kstack_pages	,
		CTLFLAG_RD	,
		&	kstack_pages,
		0	,
		"Kernel stack size in pages"
	)

SYSCTL_INT	(	_kern	,
		OID_AUTO	,
		proc_vmmap_skip_resident_count	,
		CTLFLAG_RW	,
		&	vmmap_skip_res_cnt,
		0	,
		"Skip calculation of the pages resident count in kern.proc.vmmap"
	)

static int sysctl_kern_proc ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 1266 of file kern_proc.c.

References allproc, allproc_lock, name, p_cansee(), pget(), sysctl_out_proc(), sysctl_wire_old_buffer(), tty_udev(), and zombproc.

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static int sysctl_kern_proc_args ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 1785 of file kern_proc.c.

References GET_PS_STRINGS_CHUNK_SZ, name, pargs_alloc(), pargs_drop(), pargs_free(), pargs_hold(), pget(), proc_getargv(), ps_arg_cache_limit, sbuf_delete(), sbuf_finish(), and sbuf_new_for_sysctl().

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static int sysctl_kern_proc_auxv ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 1878 of file kern_proc.c.

References GET_PS_STRINGS_CHUNK_SZ, name, pget(), proc_getauxv(), sbuf_delete(), sbuf_finish(), and sbuf_new_for_sysctl().

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static int sysctl_kern_proc_env ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 1846 of file kern_proc.c.

References GET_PS_STRINGS_CHUNK_SZ, name, pget(), proc_getenvv(), sbuf_delete(), sbuf_finish(), and sbuf_new_for_sysctl().

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static int sysctl_kern_proc_groups ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2453 of file kern_proc.c.

References crfree(), crhold(), and pget().

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static int sysctl_kern_proc_osrel ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2613 of file kern_proc.c.

References pget().

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static int sysctl_kern_proc_pathname ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 1909 of file kern_proc.c.

References free(), pget(), vn_fullpath(), vref(), and vrele().

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static int sysctl_kern_proc_ps_strings ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2545 of file kern_proc.c.

References pget().

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static int sysctl_kern_proc_rlimit ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2486 of file kern_proc.c.

References kern_proc_setrlimit(), lim_rlimit(), and pget().

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static int sysctl_kern_proc_sigtramp ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2655 of file kern_proc.c.

References pget().

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static int sysctl_kern_proc_sv_name ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 1949 of file kern_proc.c.

References name, pget(), and sysctl_handle_string().

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static int sysctl_kern_proc_umask ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2585 of file kern_proc.c.

References pget().

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static int sysctl_kern_proc_vmmap ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 2337 of file kern_proc.c.

References kern_proc_vmmap_out(), name, pget(), sbuf_delete(), sbuf_finish(), and sbuf_new_for_sysctl().

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SYSCTL_NODE	(	_kern	,
		KERN_PROC	,
		proc	,
		CTLFLAG_RD	,
		0	,
		"Process table"
	)

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_GID  , gid  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_PGRP  , pgrp  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_RGID  , rgid  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_SESSION  , sid  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_TTY  , tty  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_UID  , uid  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_RUID  , ruid  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_PID  , pid  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_PROC  , proc  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Return process  table, no threads"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_ARGS  , args  , CTLFLAG_RW|CTLFLAG_ANYBODY|  CTLFLAG_MPSAFE, sysctl_kern_proc_args  , "Process argument list"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_ENV  , env  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_env  , "Process environment"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_AUXV  , auxv  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_auxv  , "Process ELF auxiliary vector"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_PATHNAME  , pathname  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_pathname  , "Process executable path"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_SV_NAME  , sv_name  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name  , "Process syscall vector name (ABI type)"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_GID|KERN_PROC_INC_THREAD)  , gid_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_PGRP|KERN_PROC_INC_THREAD)  , pgrp_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_RGID|KERN_PROC_INC_THREAD)  , rgid_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_SESSION|KERN_PROC_INC_THREAD)  , sid_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_TTY|KERN_PROC_INC_THREAD)  , tty_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_UID|KERN_PROC_INC_THREAD)  , uid_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_RUID|KERN_PROC_INC_THREAD)  , ruid_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_PID|KERN_PROC_INC_THREAD)  , pid_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Process table"    )

static

static SYSCTL_NODE ( _kern_proc  , (KERN_PROC_PROC|KERN_PROC_INC_THREAD)  , proc_td  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc  , "Return process  table, no threads"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_VMMAP  , vmmap  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap  , "Process vm map entries"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_GROUPS  , groups  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_groups  , "Process groups"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_RLIMIT  , rlimit  , CTLFLAG_RW|CTLFLAG_ANYBODY|  CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit  , "Process resource limits"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_PS_STRINGS  , ps_strings  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings  , "Process ps_strings location"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_UMASK  , umask  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_umask  , "Process umask"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_OSREL  , osrel  , CTLFLAG_RW|CTLFLAG_ANYBODY|  CTLFLAG_MPSAFE, sysctl_kern_proc_osrel  , "Process binary osreldate"    )

static

static SYSCTL_NODE ( _kern_proc  , KERN_PROC_SIGTRAMP  , sigtramp  , CTLFLAG_RD|  CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp  , "Process signal trampoline location"    )

static

static int sysctl_out_proc ( struct proc *  p, struct sysctl_req *  req, int  flags, int  doingzomb  )

static

Definition at line 1230 of file kern_proc.c.

References kern_proc_out(), pfind(), sbuf_delete(), sbuf_finish(), sbuf_new_for_sysctl(), and zpfind().

Referenced by sysctl_kern_proc().

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SYSCTL_PROC	(	_kern_proc	,
		KERN_PROC_ALL	,
		all	,
		CTLFLAG_RD|CTLTYPE_STRUCT|	CTLFLAG_MPSAFE,
		0	,
		0	,
		sysctl_kern_proc	,
		"	S,
		proc"	,
		"Return entire process table"
	)

struct proc* zpfind

(

pid_t

pid

)

Definition at line 1075 of file kern_proc.c.

References allproc_lock, and zpfind_locked().

Referenced by filt_procattach(), sys_kill(), sys_sigqueue(), and sysctl_out_proc().

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static struct proc * zpfind_locked ( pid_t  pid )

static

Definition at line 1057 of file kern_proc.c.

References allproc_lock, and zombproc.

Referenced by pget(), and zpfind().

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Variable Documentation

struct proclist allproc

Definition at line 134 of file kern_proc.c.

Referenced by do_fork(), fork_findpid(), kdb_thr_first(), kdb_thr_from_pid(), prison_remove_one(), proc0_init(), procinit(), and sysctl_kern_proc().

struct sx allproc_lock

Definition at line 136 of file kern_proc.c.

Referenced by brand_inuse(), do_fork(), exit1(), fork1(), fork_findpid(), killpg1(), mountcheckdirs(), pfind(), pfind_locked(), pfind_tid_locked(), pget(), prison_remove_one(), proc0_post(), proc_reap(), procinit(), schedcpu(), sys_getpriority(), sys_ktrace(), sys_setpriority(), sysctl_kern_file(), sysctl_kern_pid_max(), sysctl_kern_proc(), sysctl_kern_randompid(), zpfind(), and zpfind_locked().

int kstack_pages = KSTACK_PAGES

Definition at line 141 of file kern_proc.c.

u_long pgrphash

Definition at line 133 of file kern_proc.c.

Referenced by procinit().

struct pgrphashhead* pgrphashtbl

Definition at line 132 of file kern_proc.c.

Referenced by procinit().

u_long pidhash

Definition at line 131 of file kern_proc.c.

Referenced by procinit().

struct pidhashhead* pidhashtbl

Definition at line 130 of file kern_proc.c.

Referenced by procinit().

struct mtx ppeers_lock

Definition at line 138 of file kern_proc.c.

Referenced by do_fork(), exit1(), and procinit().

uma_zone_t proc_zone

Definition at line 139 of file kern_proc.c.

Referenced by fork1(), proc_reap(), and procinit().

struct sx proctree_lock

Definition at line 137 of file kern_proc.c.

Referenced by acct_process(), clear_orphan(), ctty_clone(), do_fork(), doenterpgrp(), enterpgrp(), enterthispgrp(), exit1(), fixjobc(), fork1(), fork_findpid(), fork_return(), fsetown(), gsignal(), inferior(), kern_procctl(), kern_ptrace(), kern_wait6(), killpg1(), kproc_exit(), leavepgrp(), pgdelete(), pgfind(), proc_realparent(), proc_reap(), proc_reparent(), proc_to_reap(), procinit(), protect_setchildren(), sys_getpriority(), sys_ktrace(), sys_setpgid(), sys_setpriority(), sys_setsid(), sysctl_kern_pid_max(), tprintf(), tty_generic_ioctl(), and uprintf().

int vmmap_skip_res_cnt = 0

static

Definition at line 144 of file kern_proc.c.

Referenced by kern_proc_vmmap_out().

struct proclist zombproc

Definition at line 135 of file kern_proc.c.

Referenced by exit1(), fork_findpid(), procinit(), sysctl_kern_proc(), and zpfind_locked().