FreeBSD/Linux Kernel Cross Reference
sys/kern/kern_proc.c
1 /*-
2 * Copyright (c) 1982, 1986, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
30 * $FreeBSD: releng/6.0/sys/kern/kern_proc.c 150962 2005-10-05 05:30:24Z truckman $
31 */
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD: releng/6.0/sys/kern/kern_proc.c 150962 2005-10-05 05:30:24Z truckman $");
35
36 #include "opt_ktrace.h"
37 #include "opt_kstack_pages.h"
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/malloc.h>
44 #include <sys/mutex.h>
45 #include <sys/proc.h>
46 #include <sys/sysent.h>
47 #include <sys/sched.h>
48 #include <sys/smp.h>
49 #include <sys/sysctl.h>
50 #include <sys/filedesc.h>
51 #include <sys/tty.h>
52 #include <sys/signalvar.h>
53 #include <sys/sx.h>
54 #include <sys/user.h>
55 #include <sys/jail.h>
56 #include <sys/vnode.h>
57 #ifdef KTRACE
58 #include <sys/uio.h>
59 #include <sys/ktrace.h>
60 #endif
61
62 #include <vm/vm.h>
63 #include <vm/vm_extern.h>
64 #include <vm/pmap.h>
65 #include <vm/vm_map.h>
66 #include <vm/uma.h>
67
68 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
69 MALLOC_DEFINE(M_SESSION, "session", "session header");
70 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
71 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
72
73 static void doenterpgrp(struct proc *, struct pgrp *);
74 static void orphanpg(struct pgrp *pg);
75 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
76 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp);
77 static void pgadjustjobc(struct pgrp *pgrp, int entering);
78 static void pgdelete(struct pgrp *);
79 static int proc_ctor(void *mem, int size, void *arg, int flags);
80 static void proc_dtor(void *mem, int size, void *arg);
81 static int proc_init(void *mem, int size, int flags);
82 static void proc_fini(void *mem, int size);
83
84 /*
85 * Other process lists
86 */
87 struct pidhashhead *pidhashtbl;
88 u_long pidhash;
89 struct pgrphashhead *pgrphashtbl;
90 u_long pgrphash;
91 struct proclist allproc;
92 struct proclist zombproc;
93 struct sx allproc_lock;
94 struct sx proctree_lock;
95 struct mtx pargs_ref_lock;
96 struct mtx ppeers_lock;
97 uma_zone_t proc_zone;
98 uma_zone_t ithread_zone;
99
100 int kstack_pages = KSTACK_PAGES;
101 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0, "");
102
103 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
104
105 /*
106 * Initialize global process hashing structures.
107 */
108 void
109 procinit()
110 {
111
112 sx_init(&allproc_lock, "allproc");
113 sx_init(&proctree_lock, "proctree");
114 mtx_init(&pargs_ref_lock, "struct pargs.ref", NULL, MTX_DEF);
115 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
116 LIST_INIT(&allproc);
117 LIST_INIT(&zombproc);
118 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
119 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
120 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
121 proc_ctor, proc_dtor, proc_init, proc_fini,
122 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
123 uihashinit();
124 }
125
126 /*
127 * Prepare a proc for use.
128 */
129 static int
130 proc_ctor(void *mem, int size, void *arg, int flags)
131 {
132 struct proc *p;
133
134 p = (struct proc *)mem;
135 return (0);
136 }
137
138 /*
139 * Reclaim a proc after use.
140 */
141 static void
142 proc_dtor(void *mem, int size, void *arg)
143 {
144 struct proc *p;
145 struct thread *td;
146 #ifdef INVARIANTS
147 struct ksegrp *kg;
148 #endif
149
150 /* INVARIANTS checks go here */
151 p = (struct proc *)mem;
152 td = FIRST_THREAD_IN_PROC(p);
153 #ifdef INVARIANTS
154 KASSERT((p->p_numthreads == 1),
155 ("bad number of threads in exiting process"));
156 KASSERT((p->p_numksegrps == 1), ("free proc with > 1 ksegrp"));
157 KASSERT((td != NULL), ("proc_dtor: bad thread pointer"));
158 kg = FIRST_KSEGRP_IN_PROC(p);
159 KASSERT((kg != NULL), ("proc_dtor: bad kg pointer"));
160 #endif
161
162 /* Dispose of an alternate kstack, if it exists.
163 * XXX What if there are more than one thread in the proc?
164 * The first thread in the proc is special and not
165 * freed, so you gotta do this here.
166 */
167 if (((p->p_flag & P_KTHREAD) != 0) && (td->td_altkstack != 0))
168 vm_thread_dispose_altkstack(td);
169 }
170
171 /*
172 * Initialize type-stable parts of a proc (when newly created).
173 */
174 static int
175 proc_init(void *mem, int size, int flags)
176 {
177 struct proc *p;
178 struct thread *td;
179 struct ksegrp *kg;
180
181 p = (struct proc *)mem;
182 p->p_sched = (struct p_sched *)&p[1];
183 td = thread_alloc();
184 kg = ksegrp_alloc();
185 bzero(&p->p_mtx, sizeof(struct mtx));
186 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
187 p->p_stats = pstats_alloc();
188 proc_linkup(p, kg, td);
189 sched_newproc(p, kg, td);
190 return (0);
191 }
192
193 /*
194 * UMA should ensure that this function is never called.
195 * Freeing a proc structure would violate type stability.
196 */
197 static void
198 proc_fini(void *mem, int size)
199 {
200
201 panic("proc reclaimed");
202 }
203
204 /*
205 * Is p an inferior of the current process?
206 */
207 int
208 inferior(p)
209 register struct proc *p;
210 {
211
212 sx_assert(&proctree_lock, SX_LOCKED);
213 for (; p != curproc; p = p->p_pptr)
214 if (p->p_pid == 0)
215 return (0);
216 return (1);
217 }
218
219 /*
220 * Locate a process by number; return only "live" processes -- i.e., neither
221 * zombies nor newly born but incompletely initialized processes. By not
222 * returning processes in the PRS_NEW state, we allow callers to avoid
223 * testing for that condition to avoid dereferencing p_ucred, et al.
224 */
225 struct proc *
226 pfind(pid)
227 register pid_t pid;
228 {
229 register struct proc *p;
230
231 sx_slock(&allproc_lock);
232 LIST_FOREACH(p, PIDHASH(pid), p_hash)
233 if (p->p_pid == pid) {
234 if (p->p_state == PRS_NEW) {
235 p = NULL;
236 break;
237 }
238 PROC_LOCK(p);
239 break;
240 }
241 sx_sunlock(&allproc_lock);
242 return (p);
243 }
244
245 /*
246 * Locate a process group by number.
247 * The caller must hold proctree_lock.
248 */
249 struct pgrp *
250 pgfind(pgid)
251 register pid_t pgid;
252 {
253 register struct pgrp *pgrp;
254
255 sx_assert(&proctree_lock, SX_LOCKED);
256
257 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
258 if (pgrp->pg_id == pgid) {
259 PGRP_LOCK(pgrp);
260 return (pgrp);
261 }
262 }
263 return (NULL);
264 }
265
266 /*
267 * Create a new process group.
268 * pgid must be equal to the pid of p.
269 * Begin a new session if required.
270 */
271 int
272 enterpgrp(p, pgid, pgrp, sess)
273 register struct proc *p;
274 pid_t pgid;
275 struct pgrp *pgrp;
276 struct session *sess;
277 {
278 struct pgrp *pgrp2;
279
280 sx_assert(&proctree_lock, SX_XLOCKED);
281
282 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
283 KASSERT(p->p_pid == pgid,
284 ("enterpgrp: new pgrp and pid != pgid"));
285
286 pgrp2 = pgfind(pgid);
287
288 KASSERT(pgrp2 == NULL,
289 ("enterpgrp: pgrp with pgid exists"));
290 KASSERT(!SESS_LEADER(p),
291 ("enterpgrp: session leader attempted setpgrp"));
292
293 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
294
295 if (sess != NULL) {
296 /*
297 * new session
298 */
299 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
300 PROC_LOCK(p);
301 p->p_flag &= ~P_CONTROLT;
302 PROC_UNLOCK(p);
303 PGRP_LOCK(pgrp);
304 sess->s_leader = p;
305 sess->s_sid = p->p_pid;
306 sess->s_count = 1;
307 sess->s_ttyvp = NULL;
308 sess->s_ttyp = NULL;
309 bcopy(p->p_session->s_login, sess->s_login,
310 sizeof(sess->s_login));
311 pgrp->pg_session = sess;
312 KASSERT(p == curproc,
313 ("enterpgrp: mksession and p != curproc"));
314 } else {
315 pgrp->pg_session = p->p_session;
316 SESS_LOCK(pgrp->pg_session);
317 pgrp->pg_session->s_count++;
318 SESS_UNLOCK(pgrp->pg_session);
319 PGRP_LOCK(pgrp);
320 }
321 pgrp->pg_id = pgid;
322 LIST_INIT(&pgrp->pg_members);
323
324 /*
325 * As we have an exclusive lock of proctree_lock,
326 * this should not deadlock.
327 */
328 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
329 pgrp->pg_jobc = 0;
330 SLIST_INIT(&pgrp->pg_sigiolst);
331 PGRP_UNLOCK(pgrp);
332
333 doenterpgrp(p, pgrp);
334
335 return (0);
336 }
337
338 /*
339 * Move p to an existing process group
340 */
341 int
342 enterthispgrp(p, pgrp)
343 register struct proc *p;
344 struct pgrp *pgrp;
345 {
346
347 sx_assert(&proctree_lock, SX_XLOCKED);
348 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
349 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
350 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
351 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
352 KASSERT(pgrp->pg_session == p->p_session,
353 ("%s: pgrp's session %p, p->p_session %p.\n",
354 __func__,
355 pgrp->pg_session,
356 p->p_session));
357 KASSERT(pgrp != p->p_pgrp,
358 ("%s: p belongs to pgrp.", __func__));
359
360 doenterpgrp(p, pgrp);
361
362 return (0);
363 }
364
365 /*
366 * Move p to a process group
367 */
368 static void
369 doenterpgrp(p, pgrp)
370 struct proc *p;
371 struct pgrp *pgrp;
372 {
373 struct pgrp *savepgrp;
374
375 sx_assert(&proctree_lock, SX_XLOCKED);
376 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
377 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
378 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
379 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
380
381 savepgrp = p->p_pgrp;
382
383 /*
384 * Adjust eligibility of affected pgrps to participate in job control.
385 * Increment eligibility counts before decrementing, otherwise we
386 * could reach 0 spuriously during the first call.
387 */
388 fixjobc(p, pgrp, 1);
389 fixjobc(p, p->p_pgrp, 0);
390
391 PGRP_LOCK(pgrp);
392 PGRP_LOCK(savepgrp);
393 PROC_LOCK(p);
394 LIST_REMOVE(p, p_pglist);
395 p->p_pgrp = pgrp;
396 PROC_UNLOCK(p);
397 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
398 PGRP_UNLOCK(savepgrp);
399 PGRP_UNLOCK(pgrp);
400 if (LIST_EMPTY(&savepgrp->pg_members))
401 pgdelete(savepgrp);
402 }
403
404 /*
405 * remove process from process group
406 */
407 int
408 leavepgrp(p)
409 register struct proc *p;
410 {
411 struct pgrp *savepgrp;
412
413 sx_assert(&proctree_lock, SX_XLOCKED);
414 savepgrp = p->p_pgrp;
415 PGRP_LOCK(savepgrp);
416 PROC_LOCK(p);
417 LIST_REMOVE(p, p_pglist);
418 p->p_pgrp = NULL;
419 PROC_UNLOCK(p);
420 PGRP_UNLOCK(savepgrp);
421 if (LIST_EMPTY(&savepgrp->pg_members))
422 pgdelete(savepgrp);
423 return (0);
424 }
425
426 /*
427 * delete a process group
428 */
429 static void
430 pgdelete(pgrp)
431 register struct pgrp *pgrp;
432 {
433 struct session *savesess;
434
435 sx_assert(&proctree_lock, SX_XLOCKED);
436 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
437 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
438
439 /*
440 * Reset any sigio structures pointing to us as a result of
441 * F_SETOWN with our pgid.
442 */
443 funsetownlst(&pgrp->pg_sigiolst);
444
445 PGRP_LOCK(pgrp);
446 if (pgrp->pg_session->s_ttyp != NULL &&
447 pgrp->pg_session->s_ttyp->t_pgrp == pgrp)
448 pgrp->pg_session->s_ttyp->t_pgrp = NULL;
449 LIST_REMOVE(pgrp, pg_hash);
450 savesess = pgrp->pg_session;
451 SESSRELE(savesess);
452 PGRP_UNLOCK(pgrp);
453 mtx_destroy(&pgrp->pg_mtx);
454 FREE(pgrp, M_PGRP);
455 }
456
457 static void
458 pgadjustjobc(pgrp, entering)
459 struct pgrp *pgrp;
460 int entering;
461 {
462
463 PGRP_LOCK(pgrp);
464 if (entering)
465 pgrp->pg_jobc++;
466 else {
467 --pgrp->pg_jobc;
468 if (pgrp->pg_jobc == 0)
469 orphanpg(pgrp);
470 }
471 PGRP_UNLOCK(pgrp);
472 }
473
474 /*
475 * Adjust pgrp jobc counters when specified process changes process group.
476 * We count the number of processes in each process group that "qualify"
477 * the group for terminal job control (those with a parent in a different
478 * process group of the same session). If that count reaches zero, the
479 * process group becomes orphaned. Check both the specified process'
480 * process group and that of its children.
481 * entering == 0 => p is leaving specified group.
482 * entering == 1 => p is entering specified group.
483 */
484 void
485 fixjobc(p, pgrp, entering)
486 register struct proc *p;
487 register struct pgrp *pgrp;
488 int entering;
489 {
490 register struct pgrp *hispgrp;
491 register struct session *mysession;
492
493 sx_assert(&proctree_lock, SX_LOCKED);
494 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
495 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
496 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
497
498 /*
499 * Check p's parent to see whether p qualifies its own process
500 * group; if so, adjust count for p's process group.
501 */
502 mysession = pgrp->pg_session;
503 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
504 hispgrp->pg_session == mysession)
505 pgadjustjobc(pgrp, entering);
506
507 /*
508 * Check this process' children to see whether they qualify
509 * their process groups; if so, adjust counts for children's
510 * process groups.
511 */
512 LIST_FOREACH(p, &p->p_children, p_sibling) {
513 hispgrp = p->p_pgrp;
514 if (hispgrp == pgrp ||
515 hispgrp->pg_session != mysession)
516 continue;
517 PROC_LOCK(p);
518 if (p->p_state == PRS_ZOMBIE) {
519 PROC_UNLOCK(p);
520 continue;
521 }
522 PROC_UNLOCK(p);
523 pgadjustjobc(hispgrp, entering);
524 }
525 }
526
527 /*
528 * A process group has become orphaned;
529 * if there are any stopped processes in the group,
530 * hang-up all process in that group.
531 */
532 static void
533 orphanpg(pg)
534 struct pgrp *pg;
535 {
536 register struct proc *p;
537
538 PGRP_LOCK_ASSERT(pg, MA_OWNED);
539
540 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
541 PROC_LOCK(p);
542 if (P_SHOULDSTOP(p)) {
543 PROC_UNLOCK(p);
544 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
545 PROC_LOCK(p);
546 psignal(p, SIGHUP);
547 psignal(p, SIGCONT);
548 PROC_UNLOCK(p);
549 }
550 return;
551 }
552 PROC_UNLOCK(p);
553 }
554 }
555
556 void
557 sessrele(struct session *s)
558 {
559 int i;
560
561 SESS_LOCK(s);
562 i = --s->s_count;
563 SESS_UNLOCK(s);
564 if (i == 0) {
565 if (s->s_ttyp != NULL)
566 ttyrel(s->s_ttyp);
567 mtx_destroy(&s->s_mtx);
568 FREE(s, M_SESSION);
569 }
570 }
571
572 #include "opt_ddb.h"
573 #ifdef DDB
574 #include <ddb/ddb.h>
575
576 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
577 {
578 register struct pgrp *pgrp;
579 register struct proc *p;
580 register int i;
581
582 for (i = 0; i <= pgrphash; i++) {
583 if (!LIST_EMPTY(&pgrphashtbl[i])) {
584 printf("\tindx %d\n", i);
585 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
586 printf(
587 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
588 (void *)pgrp, (long)pgrp->pg_id,
589 (void *)pgrp->pg_session,
590 pgrp->pg_session->s_count,
591 (void *)LIST_FIRST(&pgrp->pg_members));
592 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
593 printf("\t\tpid %ld addr %p pgrp %p\n",
594 (long)p->p_pid, (void *)p,
595 (void *)p->p_pgrp);
596 }
597 }
598 }
599 }
600 }
601 #endif /* DDB */
602
603 /*
604 * Clear kinfo_proc and fill in any information that is common
605 * to all threads in the process.
606 * Must be called with the target process locked.
607 */
608 static void
609 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
610 {
611 struct thread *td0;
612 struct tty *tp;
613 struct session *sp;
614 struct timeval tv;
615 struct ucred *cred;
616 struct sigacts *ps;
617
618 bzero(kp, sizeof(*kp));
619
620 kp->ki_structsize = sizeof(*kp);
621 kp->ki_paddr = p;
622 PROC_LOCK_ASSERT(p, MA_OWNED);
623 kp->ki_addr =/* p->p_addr; */0; /* XXXKSE */
624 kp->ki_args = p->p_args;
625 kp->ki_textvp = p->p_textvp;
626 #ifdef KTRACE
627 kp->ki_tracep = p->p_tracevp;
628 mtx_lock(&ktrace_mtx);
629 kp->ki_traceflag = p->p_traceflag;
630 mtx_unlock(&ktrace_mtx);
631 #endif
632 kp->ki_fd = p->p_fd;
633 kp->ki_vmspace = p->p_vmspace;
634 kp->ki_flag = p->p_flag;
635 cred = p->p_ucred;
636 if (cred) {
637 kp->ki_uid = cred->cr_uid;
638 kp->ki_ruid = cred->cr_ruid;
639 kp->ki_svuid = cred->cr_svuid;
640 /* XXX bde doesn't like KI_NGROUPS */
641 kp->ki_ngroups = min(cred->cr_ngroups, KI_NGROUPS);
642 bcopy(cred->cr_groups, kp->ki_groups,
643 kp->ki_ngroups * sizeof(gid_t));
644 kp->ki_rgid = cred->cr_rgid;
645 kp->ki_svgid = cred->cr_svgid;
646 /* If jailed(cred), emulate the old P_JAILED flag. */
647 if (jailed(cred)) {
648 kp->ki_flag |= P_JAILED;
649 /* If inside a jail, use 0 as a jail ID. */
650 if (!jailed(curthread->td_ucred))
651 kp->ki_jid = cred->cr_prison->pr_id;
652 }
653 }
654 ps = p->p_sigacts;
655 if (ps) {
656 mtx_lock(&ps->ps_mtx);
657 kp->ki_sigignore = ps->ps_sigignore;
658 kp->ki_sigcatch = ps->ps_sigcatch;
659 mtx_unlock(&ps->ps_mtx);
660 }
661 mtx_lock_spin(&sched_lock);
662 if (p->p_state != PRS_NEW &&
663 p->p_state != PRS_ZOMBIE &&
664 p->p_vmspace != NULL) {
665 struct vmspace *vm = p->p_vmspace;
666
667 kp->ki_size = vm->vm_map.size;
668 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
669 FOREACH_THREAD_IN_PROC(p, td0) {
670 if (!TD_IS_SWAPPED(td0))
671 kp->ki_rssize += td0->td_kstack_pages;
672 if (td0->td_altkstack_obj != NULL)
673 kp->ki_rssize += td0->td_altkstack_pages;
674 }
675 kp->ki_swrss = vm->vm_swrss;
676 kp->ki_tsize = vm->vm_tsize;
677 kp->ki_dsize = vm->vm_dsize;
678 kp->ki_ssize = vm->vm_ssize;
679 } else if (p->p_state == PRS_ZOMBIE)
680 kp->ki_stat = SZOMB;
681 kp->ki_sflag = p->p_sflag;
682 kp->ki_swtime = p->p_swtime;
683 kp->ki_pid = p->p_pid;
684 kp->ki_nice = p->p_nice;
685 bintime2timeval(&p->p_rux.rux_runtime, &tv);
686 kp->ki_runtime = tv.tv_sec * (u_int64_t)1000000 + tv.tv_usec;
687 mtx_unlock_spin(&sched_lock);
688 if ((p->p_sflag & PS_INMEM) && p->p_stats != NULL) {
689 kp->ki_start = p->p_stats->p_start;
690 timevaladd(&kp->ki_start, &boottime);
691 kp->ki_rusage = p->p_stats->p_ru;
692 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
693 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
694
695 /* Some callers want child-times in a single value */
696 kp->ki_childtime = kp->ki_childstime;
697 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
698 }
699 tp = NULL;
700 if (p->p_pgrp) {
701 kp->ki_pgid = p->p_pgrp->pg_id;
702 kp->ki_jobc = p->p_pgrp->pg_jobc;
703 sp = p->p_pgrp->pg_session;
704
705 if (sp != NULL) {
706 kp->ki_sid = sp->s_sid;
707 SESS_LOCK(sp);
708 strlcpy(kp->ki_login, sp->s_login,
709 sizeof(kp->ki_login));
710 if (sp->s_ttyvp)
711 kp->ki_kiflag |= KI_CTTY;
712 if (SESS_LEADER(p))
713 kp->ki_kiflag |= KI_SLEADER;
714 tp = sp->s_ttyp;
715 SESS_UNLOCK(sp);
716 }
717 }
718 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
719 kp->ki_tdev = dev2udev(tp->t_dev);
720 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
721 if (tp->t_session)
722 kp->ki_tsid = tp->t_session->s_sid;
723 } else
724 kp->ki_tdev = NODEV;
725 if (p->p_comm[0] != '\0') {
726 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
727 strlcpy(kp->ki_ocomm, p->p_comm, sizeof(kp->ki_ocomm));
728 }
729 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
730 p->p_sysent->sv_name[0] != '\0')
731 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
732 kp->ki_siglist = p->p_siglist;
733 kp->ki_xstat = p->p_xstat;
734 kp->ki_acflag = p->p_acflag;
735 kp->ki_lock = p->p_lock;
736 if (p->p_pptr)
737 kp->ki_ppid = p->p_pptr->p_pid;
738 }
739
740 /*
741 * Fill in information that is thread specific.
742 * Must be called with sched_lock locked.
743 */
744 static void
745 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp)
746 {
747 struct ksegrp *kg;
748 struct proc *p;
749
750 p = td->td_proc;
751
752 if (td->td_wmesg != NULL)
753 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
754 else
755 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
756 if (TD_ON_LOCK(td)) {
757 kp->ki_kiflag |= KI_LOCKBLOCK;
758 strlcpy(kp->ki_lockname, td->td_lockname,
759 sizeof(kp->ki_lockname));
760 } else {
761 kp->ki_kiflag &= ~KI_LOCKBLOCK;
762 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
763 }
764
765 if (p->p_state == PRS_NORMAL) { /* XXXKSE very approximate */
766 if (TD_ON_RUNQ(td) ||
767 TD_CAN_RUN(td) ||
768 TD_IS_RUNNING(td)) {
769 kp->ki_stat = SRUN;
770 } else if (P_SHOULDSTOP(p)) {
771 kp->ki_stat = SSTOP;
772 } else if (TD_IS_SLEEPING(td)) {
773 kp->ki_stat = SSLEEP;
774 } else if (TD_ON_LOCK(td)) {
775 kp->ki_stat = SLOCK;
776 } else {
777 kp->ki_stat = SWAIT;
778 }
779 } else {
780 kp->ki_stat = SIDL;
781 }
782
783 kg = td->td_ksegrp;
784
785 /* things in the KSE GROUP */
786 kp->ki_estcpu = kg->kg_estcpu;
787 kp->ki_slptime = kg->kg_slptime;
788 kp->ki_pri.pri_user = kg->kg_user_pri;
789 kp->ki_pri.pri_class = kg->kg_pri_class;
790
791 /* Things in the thread */
792 kp->ki_wchan = td->td_wchan;
793 kp->ki_pri.pri_level = td->td_priority;
794 kp->ki_pri.pri_native = td->td_base_pri;
795 kp->ki_lastcpu = td->td_lastcpu;
796 kp->ki_oncpu = td->td_oncpu;
797 kp->ki_tdflags = td->td_flags;
798 kp->ki_tid = td->td_tid;
799 kp->ki_numthreads = p->p_numthreads;
800 kp->ki_pcb = td->td_pcb;
801 kp->ki_kstack = (void *)td->td_kstack;
802 kp->ki_pctcpu = sched_pctcpu(td);
803
804 /* We can't get this anymore but ps etc never used it anyway. */
805 kp->ki_rqindex = 0;
806
807 SIGSETOR(kp->ki_siglist, td->td_siglist);
808 kp->ki_sigmask = td->td_sigmask;
809 }
810
811 /*
812 * Fill in a kinfo_proc structure for the specified process.
813 * Must be called with the target process locked.
814 */
815 void
816 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
817 {
818
819 fill_kinfo_proc_only(p, kp);
820 mtx_lock_spin(&sched_lock);
821 if (FIRST_THREAD_IN_PROC(p) != NULL)
822 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp);
823 mtx_unlock_spin(&sched_lock);
824 }
825
826 struct pstats *
827 pstats_alloc(void)
828 {
829
830 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
831 }
832
833 /*
834 * Copy parts of p_stats; zero the rest of p_stats (statistics).
835 */
836 void
837 pstats_fork(struct pstats *src, struct pstats *dst)
838 {
839
840 bzero(&dst->pstat_startzero,
841 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
842 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
843 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
844 }
845
846 void
847 pstats_free(struct pstats *ps)
848 {
849
850 free(ps, M_SUBPROC);
851 }
852
853 /*
854 * Locate a zombie process by number
855 */
856 struct proc *
857 zpfind(pid_t pid)
858 {
859 struct proc *p;
860
861 sx_slock(&allproc_lock);
862 LIST_FOREACH(p, &zombproc, p_list)
863 if (p->p_pid == pid) {
864 PROC_LOCK(p);
865 break;
866 }
867 sx_sunlock(&allproc_lock);
868 return (p);
869 }
870
871 #define KERN_PROC_ZOMBMASK 0x3
872 #define KERN_PROC_NOTHREADS 0x4
873
874 /*
875 * Must be called with the process locked and will return with it unlocked.
876 */
877 static int
878 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags)
879 {
880 struct thread *td;
881 struct kinfo_proc kinfo_proc;
882 int error = 0;
883 struct proc *np;
884 pid_t pid = p->p_pid;
885
886 PROC_LOCK_ASSERT(p, MA_OWNED);
887
888 fill_kinfo_proc(p, &kinfo_proc);
889 if (flags & KERN_PROC_NOTHREADS) {
890 mtx_lock_spin(&sched_lock);
891 if (FIRST_THREAD_IN_PROC(p) != NULL)
892 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), &kinfo_proc);
893 mtx_unlock_spin(&sched_lock);
894 error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc,
895 sizeof(kinfo_proc));
896 } else {
897 mtx_lock_spin(&sched_lock);
898 if (FIRST_THREAD_IN_PROC(p) != NULL)
899 FOREACH_THREAD_IN_PROC(p, td) {
900 fill_kinfo_thread(td, &kinfo_proc);
901 error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc,
902 sizeof(kinfo_proc));
903 if (error)
904 break;
905 }
906 else
907 error = SYSCTL_OUT(req, (caddr_t)&kinfo_proc,
908 sizeof(kinfo_proc));
909 mtx_unlock_spin(&sched_lock);
910 }
911 PROC_UNLOCK(p);
912 if (error)
913 return (error);
914 if (flags & KERN_PROC_ZOMBMASK)
915 np = zpfind(pid);
916 else {
917 if (pid == 0)
918 return (0);
919 np = pfind(pid);
920 }
921 if (np == NULL)
922 return EAGAIN;
923 if (np != p) {
924 PROC_UNLOCK(np);
925 return EAGAIN;
926 }
927 PROC_UNLOCK(np);
928 return (0);
929 }
930
931 static int
932 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
933 {
934 int *name = (int*) arg1;
935 u_int namelen = arg2;
936 struct proc *p;
937 int flags, doingzomb, oid_number;
938 int error = 0;
939
940 oid_number = oidp->oid_number;
941 if (oid_number != KERN_PROC_ALL &&
942 (oid_number & KERN_PROC_INC_THREAD) == 0)
943 flags = KERN_PROC_NOTHREADS;
944 else {
945 flags = 0;
946 oid_number &= ~KERN_PROC_INC_THREAD;
947 }
948 if (oid_number == KERN_PROC_PID) {
949 if (namelen != 1)
950 return (EINVAL);
951 error = sysctl_wire_old_buffer(req, 0);
952 if (error)
953 return (error);
954 p = pfind((pid_t)name[0]);
955 if (!p)
956 return (ESRCH);
957 if ((error = p_cansee(curthread, p))) {
958 PROC_UNLOCK(p);
959 return (error);
960 }
961 error = sysctl_out_proc(p, req, flags);
962 return (error);
963 }
964
965 switch (oid_number) {
966 case KERN_PROC_ALL:
967 if (namelen != 0)
968 return (EINVAL);
969 break;
970 case KERN_PROC_PROC:
971 if (namelen != 0 && namelen != 1)
972 return (EINVAL);
973 break;
974 default:
975 if (namelen != 1)
976 return (EINVAL);
977 break;
978 }
979
980 if (!req->oldptr) {
981 /* overestimate by 5 procs */
982 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
983 if (error)
984 return (error);
985 }
986 error = sysctl_wire_old_buffer(req, 0);
987 if (error != 0)
988 return (error);
989 sx_slock(&allproc_lock);
990 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
991 if (!doingzomb)
992 p = LIST_FIRST(&allproc);
993 else
994 p = LIST_FIRST(&zombproc);
995 for (; p != 0; p = LIST_NEXT(p, p_list)) {
996 /*
997 * Skip embryonic processes.
998 */
999 mtx_lock_spin(&sched_lock);
1000 if (p->p_state == PRS_NEW) {
1001 mtx_unlock_spin(&sched_lock);
1002 continue;
1003 }
1004 mtx_unlock_spin(&sched_lock);
1005 PROC_LOCK(p);
1006 /*
1007 * Show a user only appropriate processes.
1008 */
1009 if (p_cansee(curthread, p)) {
1010 PROC_UNLOCK(p);
1011 continue;
1012 }
1013 /*
1014 * TODO - make more efficient (see notes below).
1015 * do by session.
1016 */
1017 switch (oid_number) {
1018
1019 case KERN_PROC_GID:
1020 if (p->p_ucred == NULL ||
1021 p->p_ucred->cr_gid != (gid_t)name[0]) {
1022 PROC_UNLOCK(p);
1023 continue;
1024 }
1025 break;
1026
1027 case KERN_PROC_PGRP:
1028 /* could do this by traversing pgrp */
1029 if (p->p_pgrp == NULL ||
1030 p->p_pgrp->pg_id != (pid_t)name[0]) {
1031 PROC_UNLOCK(p);
1032 continue;
1033 }
1034 break;
1035
1036 case KERN_PROC_RGID:
1037 if (p->p_ucred == NULL ||
1038 p->p_ucred->cr_rgid != (gid_t)name[0]) {
1039 PROC_UNLOCK(p);
1040 continue;
1041 }
1042 break;
1043
1044 case KERN_PROC_SESSION:
1045 if (p->p_session == NULL ||
1046 p->p_session->s_sid != (pid_t)name[0]) {
1047 PROC_UNLOCK(p);
1048 continue;
1049 }
1050 break;
1051
1052 case KERN_PROC_TTY:
1053 if ((p->p_flag & P_CONTROLT) == 0 ||
1054 p->p_session == NULL) {
1055 PROC_UNLOCK(p);
1056 continue;
1057 }
1058 SESS_LOCK(p->p_session);
1059 if (p->p_session->s_ttyp == NULL ||
1060 dev2udev(p->p_session->s_ttyp->t_dev) !=
1061 (dev_t)name[0]) {
1062 SESS_UNLOCK(p->p_session);
1063 PROC_UNLOCK(p);
1064 continue;
1065 }
1066 SESS_UNLOCK(p->p_session);
1067 break;
1068
1069 case KERN_PROC_UID:
1070 if (p->p_ucred == NULL ||
1071 p->p_ucred->cr_uid != (uid_t)name[0]) {
1072 PROC_UNLOCK(p);
1073 continue;
1074 }
1075 break;
1076
1077 case KERN_PROC_RUID:
1078 if (p->p_ucred == NULL ||
1079 p->p_ucred->cr_ruid != (uid_t)name[0]) {
1080 PROC_UNLOCK(p);
1081 continue;
1082 }
1083 break;
1084
1085 case KERN_PROC_PROC:
1086 break;
1087
1088 default:
1089 break;
1090
1091 }
1092
1093 error = sysctl_out_proc(p, req, flags | doingzomb);
1094 if (error) {
1095 sx_sunlock(&allproc_lock);
1096 return (error);
1097 }
1098 }
1099 }
1100 sx_sunlock(&allproc_lock);
1101 return (0);
1102 }
1103
1104 struct pargs *
1105 pargs_alloc(int len)
1106 {
1107 struct pargs *pa;
1108
1109 MALLOC(pa, struct pargs *, sizeof(struct pargs) + len, M_PARGS,
1110 M_WAITOK);
1111 pa->ar_ref = 1;
1112 pa->ar_length = len;
1113 return (pa);
1114 }
1115
1116 void
1117 pargs_free(struct pargs *pa)
1118 {
1119
1120 FREE(pa, M_PARGS);
1121 }
1122
1123 void
1124 pargs_hold(struct pargs *pa)
1125 {
1126
1127 if (pa == NULL)
1128 return;
1129 PARGS_LOCK(pa);
1130 pa->ar_ref++;
1131 PARGS_UNLOCK(pa);
1132 }
1133
1134 void
1135 pargs_drop(struct pargs *pa)
1136 {
1137
1138 if (pa == NULL)
1139 return;
1140 PARGS_LOCK(pa);
1141 if (--pa->ar_ref == 0) {
1142 PARGS_UNLOCK(pa);
1143 pargs_free(pa);
1144 } else
1145 PARGS_UNLOCK(pa);
1146 }
1147
1148 /*
1149 * This sysctl allows a process to retrieve the argument list or process
1150 * title for another process without groping around in the address space
1151 * of the other process. It also allow a process to set its own "process
1152 * title to a string of its own choice.
1153 */
1154 static int
1155 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1156 {
1157 int *name = (int*) arg1;
1158 u_int namelen = arg2;
1159 struct pargs *newpa, *pa;
1160 struct proc *p;
1161 int error = 0;
1162
1163 if (namelen != 1)
1164 return (EINVAL);
1165
1166 p = pfind((pid_t)name[0]);
1167 if (!p)
1168 return (ESRCH);
1169
1170 if ((error = p_cansee(curthread, p)) != 0) {
1171 PROC_UNLOCK(p);
1172 return (error);
1173 }
1174
1175 if (req->newptr && curproc != p) {
1176 PROC_UNLOCK(p);
1177 return (EPERM);
1178 }
1179
1180 pa = p->p_args;
1181 pargs_hold(pa);
1182 PROC_UNLOCK(p);
1183 if (req->oldptr != NULL && pa != NULL)
1184 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1185 pargs_drop(pa);
1186 if (error != 0 || req->newptr == NULL)
1187 return (error);
1188
1189 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1190 return (ENOMEM);
1191 newpa = pargs_alloc(req->newlen);
1192 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1193 if (error != 0) {
1194 pargs_free(newpa);
1195 return (error);
1196 }
1197 PROC_LOCK(p);
1198 pa = p->p_args;
1199 p->p_args = newpa;
1200 PROC_UNLOCK(p);
1201 pargs_drop(pa);
1202 return (0);
1203 }
1204
1205 /*
1206 * This sysctl allows a process to retrieve the path of the executable for
1207 * itself or another process.
1208 */
1209 static int
1210 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1211 {
1212 pid_t *pidp = (pid_t *)arg1;
1213 unsigned int arglen = arg2;
1214 struct proc *p;
1215 struct vnode *vp;
1216 char *retbuf, *freebuf;
1217 int error;
1218
1219 if (arglen != 1)
1220 return (EINVAL);
1221 if (*pidp == -1) { /* -1 means this process */
1222 p = req->td->td_proc;
1223 } else {
1224 p = pfind(*pidp);
1225 if (p == NULL)
1226 return (ESRCH);
1227 if ((error = p_cansee(curthread, p)) != 0) {
1228 PROC_UNLOCK(p);
1229 return (error);
1230 }
1231 }
1232
1233 vp = p->p_textvp;
1234 vref(vp);
1235 if (*pidp != -1)
1236 PROC_UNLOCK(p);
1237 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1238 vrele(vp);
1239 if (error)
1240 return (error);
1241 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1242 free(freebuf, M_TEMP);
1243 return (error);
1244 }
1245
1246 static int
1247 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1248 {
1249 struct proc *p;
1250 char *sv_name;
1251 int *name;
1252 int namelen;
1253 int error;
1254
1255 namelen = arg2;
1256 if (namelen != 1)
1257 return (EINVAL);
1258
1259 name = (int *)arg1;
1260 if ((p = pfind((pid_t)name[0])) == NULL)
1261 return (ESRCH);
1262 if ((error = p_cansee(curthread, p))) {
1263 PROC_UNLOCK(p);
1264 return (error);
1265 }
1266 sv_name = p->p_sysent->sv_name;
1267 PROC_UNLOCK(p);
1268 return (sysctl_handle_string(oidp, sv_name, 0, req));
1269 }
1270
1271
1272 static SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
1273
1274 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT,
1275 0, 0, sysctl_kern_proc, "S,proc", "Return entire process table");
1276
1277 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD,
1278 sysctl_kern_proc, "Process table");
1279
1280 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD,
1281 sysctl_kern_proc, "Process table");
1282
1283 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD,
1284 sysctl_kern_proc, "Process table");
1285
1286 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD,
1287 sysctl_kern_proc, "Process table");
1288
1289 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD,
1290 sysctl_kern_proc, "Process table");
1291
1292 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD,
1293 sysctl_kern_proc, "Process table");
1294
1295 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD,
1296 sysctl_kern_proc, "Process table");
1297
1298 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD,
1299 sysctl_kern_proc, "Process table");
1300
1301 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD,
1302 sysctl_kern_proc, "Return process table, no threads");
1303
1304 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
1305 CTLFLAG_RW | CTLFLAG_ANYBODY,
1306 sysctl_kern_proc_args, "Process argument list");
1307
1308 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD,
1309 sysctl_kern_proc_pathname, "Process executable path");
1310
1311 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD,
1312 sysctl_kern_proc_sv_name, "Process syscall vector name (ABI type)");
1313
1314 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
1315 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1316
1317 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
1318 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1319
1320 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
1321 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1322
1323 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
1324 sid_td, CTLFLAG_RD, sysctl_kern_proc, "Process table");
1325
1326 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
1327 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1328
1329 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
1330 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1331
1332 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
1333 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1334
1335 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
1336 CTLFLAG_RD, sysctl_kern_proc, "Process table");
1337
1338 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
1339 CTLFLAG_RD, sysctl_kern_proc, "Return process table, no threads");
Cache object: 71318bdad350e39580adebf29ffa7c8c
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