2 * Copyright (c) 1982, 1986, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
37 #include "opt_kdtrace.h"
38 #include "opt_ktrace.h"
39 #include "opt_kstack_pages.h"
40 #include "opt_stack.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/kernel.h>
47 #include <sys/limits.h>
49 #include <sys/loginclass.h>
50 #include <sys/malloc.h>
52 #include <sys/mount.h>
53 #include <sys/mutex.h>
55 #include <sys/ptrace.h>
56 #include <sys/refcount.h>
57 #include <sys/resourcevar.h>
59 #include <sys/sysent.h>
60 #include <sys/sched.h>
62 #include <sys/stack.h>
64 #include <sys/sysctl.h>
65 #include <sys/filedesc.h>
67 #include <sys/signalvar.h>
72 #include <sys/vnode.h>
73 #include <sys/eventhandler.h>
80 #include <vm/vm_extern.h>
82 #include <vm/vm_map.h>
83 #include <vm/vm_object.h>
84 #include <vm/vm_page.h>
87 #ifdef COMPAT_FREEBSD32
88 #include <compat/freebsd32/freebsd32.h>
89 #include <compat/freebsd32/freebsd32_util.h>
92 SDT_PROVIDER_DEFINE(proc);
93 SDT_PROBE_DEFINE(proc, kernel, ctor, entry, entry);
94 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 0, "struct proc *");
95 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 1, "int");
96 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 2, "void *");
97 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 3, "int");
98 SDT_PROBE_DEFINE(proc, kernel, ctor, return, return);
99 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 0, "struct proc *");
100 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 1, "int");
101 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 2, "void *");
102 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 3, "int");
103 SDT_PROBE_DEFINE(proc, kernel, dtor, entry, entry);
104 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 0, "struct proc *");
105 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 1, "int");
106 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 2, "void *");
107 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 3, "struct thread *");
108 SDT_PROBE_DEFINE(proc, kernel, dtor, return, return);
109 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 0, "struct proc *");
110 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 1, "int");
111 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 2, "void *");
112 SDT_PROBE_DEFINE(proc, kernel, init, entry, entry);
113 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 0, "struct proc *");
114 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 1, "int");
115 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 2, "int");
116 SDT_PROBE_DEFINE(proc, kernel, init, return, return);
117 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 0, "struct proc *");
118 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 1, "int");
119 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 2, "int");
121 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
122 MALLOC_DEFINE(M_SESSION, "session", "session header");
123 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
124 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
126 static void doenterpgrp(struct proc *, struct pgrp *);
127 static void orphanpg(struct pgrp *pg);
128 static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp);
129 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
130 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp,
132 static void pgadjustjobc(struct pgrp *pgrp, int entering);
133 static void pgdelete(struct pgrp *);
134 static int proc_ctor(void *mem, int size, void *arg, int flags);
135 static void proc_dtor(void *mem, int size, void *arg);
136 static int proc_init(void *mem, int size, int flags);
137 static void proc_fini(void *mem, int size);
138 static void pargs_free(struct pargs *pa);
141 * Other process lists
143 struct pidhashhead *pidhashtbl;
145 struct pgrphashhead *pgrphashtbl;
147 struct proclist allproc;
148 struct proclist zombproc;
149 struct sx allproc_lock;
150 struct sx proctree_lock;
151 struct mtx ppeers_lock;
152 uma_zone_t proc_zone;
154 int kstack_pages = KSTACK_PAGES;
155 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0,
156 "Kernel stack size in pages");
158 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
159 #ifdef COMPAT_FREEBSD32
160 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
164 * Initialize global process hashing structures.
170 sx_init(&allproc_lock, "allproc");
171 sx_init(&proctree_lock, "proctree");
172 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
174 LIST_INIT(&zombproc);
175 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
176 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
177 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
178 proc_ctor, proc_dtor, proc_init, proc_fini,
179 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
184 * Prepare a proc for use.
187 proc_ctor(void *mem, int size, void *arg, int flags)
191 p = (struct proc *)mem;
192 SDT_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0);
193 EVENTHANDLER_INVOKE(process_ctor, p);
194 SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0);
199 * Reclaim a proc after use.
202 proc_dtor(void *mem, int size, void *arg)
207 /* INVARIANTS checks go here */
208 p = (struct proc *)mem;
209 td = FIRST_THREAD_IN_PROC(p);
210 SDT_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0);
213 KASSERT((p->p_numthreads == 1),
214 ("bad number of threads in exiting process"));
215 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr"));
217 /* Free all OSD associated to this thread. */
220 EVENTHANDLER_INVOKE(process_dtor, p);
221 if (p->p_ksi != NULL)
222 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue"));
223 SDT_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0);
227 * Initialize type-stable parts of a proc (when newly created).
230 proc_init(void *mem, int size, int flags)
234 p = (struct proc *)mem;
235 SDT_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0);
236 p->p_sched = (struct p_sched *)&p[1];
237 bzero(&p->p_mtx, sizeof(struct mtx));
238 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
239 mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE);
240 cv_init(&p->p_pwait, "ppwait");
241 cv_init(&p->p_dbgwait, "dbgwait");
242 TAILQ_INIT(&p->p_threads); /* all threads in proc */
243 EVENTHANDLER_INVOKE(process_init, p);
244 p->p_stats = pstats_alloc();
245 SDT_PROBE(proc, kernel, init, return, p, size, flags, 0, 0);
250 * UMA should ensure that this function is never called.
251 * Freeing a proc structure would violate type stability.
254 proc_fini(void *mem, int size)
259 p = (struct proc *)mem;
260 EVENTHANDLER_INVOKE(process_fini, p);
261 pstats_free(p->p_stats);
262 thread_free(FIRST_THREAD_IN_PROC(p));
263 mtx_destroy(&p->p_mtx);
264 if (p->p_ksi != NULL)
265 ksiginfo_free(p->p_ksi);
267 panic("proc reclaimed");
272 * Is p an inferior of the current process?
276 register struct proc *p;
279 sx_assert(&proctree_lock, SX_LOCKED);
280 for (; p != curproc; p = p->p_pptr)
287 * Locate a process by number; return only "live" processes -- i.e., neither
288 * zombies nor newly born but incompletely initialized processes. By not
289 * returning processes in the PRS_NEW state, we allow callers to avoid
290 * testing for that condition to avoid dereferencing p_ucred, et al.
296 register struct proc *p;
298 sx_slock(&allproc_lock);
299 LIST_FOREACH(p, PIDHASH(pid), p_hash)
300 if (p->p_pid == pid) {
302 if (p->p_state == PRS_NEW) {
308 sx_sunlock(&allproc_lock);
313 * Locate a process group by number.
314 * The caller must hold proctree_lock.
320 register struct pgrp *pgrp;
322 sx_assert(&proctree_lock, SX_LOCKED);
324 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
325 if (pgrp->pg_id == pgid) {
334 * Locate process and do additional manipulations, depending on flags.
337 pget(pid_t pid, int flags, struct proc **pp)
345 if ((flags & PGET_CANSEE) != 0) {
346 error = p_cansee(curthread, p);
350 if ((flags & PGET_CANDEBUG) != 0) {
351 error = p_candebug(curthread, p);
355 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
359 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
363 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
365 * XXXRW: Not clear ESRCH is the right error during proc
371 if ((flags & PGET_HOLD) != 0) {
383 * Create a new process group.
384 * pgid must be equal to the pid of p.
385 * Begin a new session if required.
388 enterpgrp(p, pgid, pgrp, sess)
389 register struct proc *p;
392 struct session *sess;
396 sx_assert(&proctree_lock, SX_XLOCKED);
398 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
399 KASSERT(p->p_pid == pgid,
400 ("enterpgrp: new pgrp and pid != pgid"));
402 pgrp2 = pgfind(pgid);
404 KASSERT(pgrp2 == NULL,
405 ("enterpgrp: pgrp with pgid exists"));
406 KASSERT(!SESS_LEADER(p),
407 ("enterpgrp: session leader attempted setpgrp"));
409 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
415 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
417 p->p_flag &= ~P_CONTROLT;
421 sess->s_sid = p->p_pid;
422 refcount_init(&sess->s_count, 1);
423 sess->s_ttyvp = NULL;
424 sess->s_ttydp = NULL;
426 bcopy(p->p_session->s_login, sess->s_login,
427 sizeof(sess->s_login));
428 pgrp->pg_session = sess;
429 KASSERT(p == curproc,
430 ("enterpgrp: mksession and p != curproc"));
432 pgrp->pg_session = p->p_session;
433 sess_hold(pgrp->pg_session);
437 LIST_INIT(&pgrp->pg_members);
440 * As we have an exclusive lock of proctree_lock,
441 * this should not deadlock.
443 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
445 SLIST_INIT(&pgrp->pg_sigiolst);
448 doenterpgrp(p, pgrp);
454 * Move p to an existing process group
457 enterthispgrp(p, pgrp)
458 register struct proc *p;
462 sx_assert(&proctree_lock, SX_XLOCKED);
463 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
464 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
465 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
466 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
467 KASSERT(pgrp->pg_session == p->p_session,
468 ("%s: pgrp's session %p, p->p_session %p.\n",
472 KASSERT(pgrp != p->p_pgrp,
473 ("%s: p belongs to pgrp.", __func__));
475 doenterpgrp(p, pgrp);
481 * Move p to a process group
488 struct pgrp *savepgrp;
490 sx_assert(&proctree_lock, SX_XLOCKED);
491 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
492 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
493 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
494 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
496 savepgrp = p->p_pgrp;
499 * Adjust eligibility of affected pgrps to participate in job control.
500 * Increment eligibility counts before decrementing, otherwise we
501 * could reach 0 spuriously during the first call.
504 fixjobc(p, p->p_pgrp, 0);
509 LIST_REMOVE(p, p_pglist);
512 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
513 PGRP_UNLOCK(savepgrp);
515 if (LIST_EMPTY(&savepgrp->pg_members))
520 * remove process from process group
524 register struct proc *p;
526 struct pgrp *savepgrp;
528 sx_assert(&proctree_lock, SX_XLOCKED);
529 savepgrp = p->p_pgrp;
532 LIST_REMOVE(p, p_pglist);
535 PGRP_UNLOCK(savepgrp);
536 if (LIST_EMPTY(&savepgrp->pg_members))
542 * delete a process group
546 register struct pgrp *pgrp;
548 struct session *savesess;
551 sx_assert(&proctree_lock, SX_XLOCKED);
552 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
553 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
556 * Reset any sigio structures pointing to us as a result of
557 * F_SETOWN with our pgid.
559 funsetownlst(&pgrp->pg_sigiolst);
562 tp = pgrp->pg_session->s_ttyp;
563 LIST_REMOVE(pgrp, pg_hash);
564 savesess = pgrp->pg_session;
567 /* Remove the reference to the pgrp before deallocating it. */
570 tty_rel_pgrp(tp, pgrp);
573 mtx_destroy(&pgrp->pg_mtx);
575 sess_release(savesess);
579 pgadjustjobc(pgrp, entering)
589 if (pgrp->pg_jobc == 0)
596 * Adjust pgrp jobc counters when specified process changes process group.
597 * We count the number of processes in each process group that "qualify"
598 * the group for terminal job control (those with a parent in a different
599 * process group of the same session). If that count reaches zero, the
600 * process group becomes orphaned. Check both the specified process'
601 * process group and that of its children.
602 * entering == 0 => p is leaving specified group.
603 * entering == 1 => p is entering specified group.
606 fixjobc(p, pgrp, entering)
607 register struct proc *p;
608 register struct pgrp *pgrp;
611 register struct pgrp *hispgrp;
612 register struct session *mysession;
614 sx_assert(&proctree_lock, SX_LOCKED);
615 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
616 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
617 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
620 * Check p's parent to see whether p qualifies its own process
621 * group; if so, adjust count for p's process group.
623 mysession = pgrp->pg_session;
624 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
625 hispgrp->pg_session == mysession)
626 pgadjustjobc(pgrp, entering);
629 * Check this process' children to see whether they qualify
630 * their process groups; if so, adjust counts for children's
633 LIST_FOREACH(p, &p->p_children, p_sibling) {
635 if (hispgrp == pgrp ||
636 hispgrp->pg_session != mysession)
639 if (p->p_state == PRS_ZOMBIE) {
644 pgadjustjobc(hispgrp, entering);
649 * A process group has become orphaned;
650 * if there are any stopped processes in the group,
651 * hang-up all process in that group.
657 register struct proc *p;
659 PGRP_LOCK_ASSERT(pg, MA_OWNED);
661 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
663 if (P_SHOULDSTOP(p)) {
665 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
667 kern_psignal(p, SIGHUP);
668 kern_psignal(p, SIGCONT);
678 sess_hold(struct session *s)
681 refcount_acquire(&s->s_count);
685 sess_release(struct session *s)
688 if (refcount_release(&s->s_count)) {
689 if (s->s_ttyp != NULL) {
691 tty_rel_sess(s->s_ttyp, s);
693 mtx_destroy(&s->s_mtx);
702 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
704 register struct pgrp *pgrp;
705 register struct proc *p;
708 for (i = 0; i <= pgrphash; i++) {
709 if (!LIST_EMPTY(&pgrphashtbl[i])) {
710 printf("\tindx %d\n", i);
711 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
713 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
714 (void *)pgrp, (long)pgrp->pg_id,
715 (void *)pgrp->pg_session,
716 pgrp->pg_session->s_count,
717 (void *)LIST_FIRST(&pgrp->pg_members));
718 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
719 printf("\t\tpid %ld addr %p pgrp %p\n",
720 (long)p->p_pid, (void *)p,
730 * Calculate the kinfo_proc members which contain process-wide
732 * Must be called with the target process locked.
735 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
739 PROC_LOCK_ASSERT(p, MA_OWNED);
743 FOREACH_THREAD_IN_PROC(p, td) {
745 kp->ki_pctcpu += sched_pctcpu(td);
746 kp->ki_estcpu += td->td_estcpu;
752 * Clear kinfo_proc and fill in any information that is common
753 * to all threads in the process.
754 * Must be called with the target process locked.
757 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
765 PROC_LOCK_ASSERT(p, MA_OWNED);
766 bzero(kp, sizeof(*kp));
768 kp->ki_structsize = sizeof(*kp);
770 kp->ki_addr =/* p->p_addr; */0; /* XXX */
771 kp->ki_args = p->p_args;
772 kp->ki_textvp = p->p_textvp;
774 kp->ki_tracep = p->p_tracevp;
775 kp->ki_traceflag = p->p_traceflag;
778 kp->ki_vmspace = p->p_vmspace;
779 kp->ki_flag = p->p_flag;
782 kp->ki_uid = cred->cr_uid;
783 kp->ki_ruid = cred->cr_ruid;
784 kp->ki_svuid = cred->cr_svuid;
786 if (cred->cr_flags & CRED_FLAG_CAPMODE)
787 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
788 /* XXX bde doesn't like KI_NGROUPS */
789 if (cred->cr_ngroups > KI_NGROUPS) {
790 kp->ki_ngroups = KI_NGROUPS;
791 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
793 kp->ki_ngroups = cred->cr_ngroups;
794 bcopy(cred->cr_groups, kp->ki_groups,
795 kp->ki_ngroups * sizeof(gid_t));
796 kp->ki_rgid = cred->cr_rgid;
797 kp->ki_svgid = cred->cr_svgid;
798 /* If jailed(cred), emulate the old P_JAILED flag. */
800 kp->ki_flag |= P_JAILED;
801 /* If inside the jail, use 0 as a jail ID. */
802 if (cred->cr_prison != curthread->td_ucred->cr_prison)
803 kp->ki_jid = cred->cr_prison->pr_id;
805 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
806 sizeof(kp->ki_loginclass));
810 mtx_lock(&ps->ps_mtx);
811 kp->ki_sigignore = ps->ps_sigignore;
812 kp->ki_sigcatch = ps->ps_sigcatch;
813 mtx_unlock(&ps->ps_mtx);
815 if (p->p_state != PRS_NEW &&
816 p->p_state != PRS_ZOMBIE &&
817 p->p_vmspace != NULL) {
818 struct vmspace *vm = p->p_vmspace;
820 kp->ki_size = vm->vm_map.size;
821 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
822 FOREACH_THREAD_IN_PROC(p, td0) {
823 if (!TD_IS_SWAPPED(td0))
824 kp->ki_rssize += td0->td_kstack_pages;
826 kp->ki_swrss = vm->vm_swrss;
827 kp->ki_tsize = vm->vm_tsize;
828 kp->ki_dsize = vm->vm_dsize;
829 kp->ki_ssize = vm->vm_ssize;
830 } else if (p->p_state == PRS_ZOMBIE)
832 if (kp->ki_flag & P_INMEM)
833 kp->ki_sflag = PS_INMEM;
836 /* Calculate legacy swtime as seconds since 'swtick'. */
837 kp->ki_swtime = (ticks - p->p_swtick) / hz;
838 kp->ki_pid = p->p_pid;
839 kp->ki_nice = p->p_nice;
840 kp->ki_start = p->p_stats->p_start;
841 timevaladd(&kp->ki_start, &boottime);
843 rufetch(p, &kp->ki_rusage);
844 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
845 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
847 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
848 /* Some callers want child times in a single value. */
849 kp->ki_childtime = kp->ki_childstime;
850 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
854 kp->ki_pgid = p->p_pgrp->pg_id;
855 kp->ki_jobc = p->p_pgrp->pg_jobc;
856 sp = p->p_pgrp->pg_session;
859 kp->ki_sid = sp->s_sid;
861 strlcpy(kp->ki_login, sp->s_login,
862 sizeof(kp->ki_login));
864 kp->ki_kiflag |= KI_CTTY;
866 kp->ki_kiflag |= KI_SLEADER;
867 /* XXX proctree_lock */
872 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
873 kp->ki_tdev = tty_udev(tp);
874 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
876 kp->ki_tsid = tp->t_session->s_sid;
879 if (p->p_comm[0] != '\0')
880 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
881 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
882 p->p_sysent->sv_name[0] != '\0')
883 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
884 kp->ki_siglist = p->p_siglist;
885 kp->ki_xstat = p->p_xstat;
886 kp->ki_acflag = p->p_acflag;
887 kp->ki_lock = p->p_lock;
889 kp->ki_ppid = p->p_pptr->p_pid;
893 * Fill in information that is thread specific. Must be called with
894 * target process locked. If 'preferthread' is set, overwrite certain
895 * process-related fields that are maintained for both threads and
899 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
905 PROC_LOCK_ASSERT(p, MA_OWNED);
910 if (td->td_wmesg != NULL)
911 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
913 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
914 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
915 if (TD_ON_LOCK(td)) {
916 kp->ki_kiflag |= KI_LOCKBLOCK;
917 strlcpy(kp->ki_lockname, td->td_lockname,
918 sizeof(kp->ki_lockname));
920 kp->ki_kiflag &= ~KI_LOCKBLOCK;
921 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
924 if (p->p_state == PRS_NORMAL) { /* approximate. */
925 if (TD_ON_RUNQ(td) ||
929 } else if (P_SHOULDSTOP(p)) {
931 } else if (TD_IS_SLEEPING(td)) {
932 kp->ki_stat = SSLEEP;
933 } else if (TD_ON_LOCK(td)) {
938 } else if (p->p_state == PRS_ZOMBIE) {
944 /* Things in the thread */
945 kp->ki_wchan = td->td_wchan;
946 kp->ki_pri.pri_level = td->td_priority;
947 kp->ki_pri.pri_native = td->td_base_pri;
948 kp->ki_lastcpu = td->td_lastcpu;
949 kp->ki_oncpu = td->td_oncpu;
950 kp->ki_tdflags = td->td_flags;
951 kp->ki_tid = td->td_tid;
952 kp->ki_numthreads = p->p_numthreads;
953 kp->ki_pcb = td->td_pcb;
954 kp->ki_kstack = (void *)td->td_kstack;
955 kp->ki_slptime = (ticks - td->td_slptick) / hz;
956 kp->ki_pri.pri_class = td->td_pri_class;
957 kp->ki_pri.pri_user = td->td_user_pri;
960 rufetchtd(td, &kp->ki_rusage);
961 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
962 kp->ki_pctcpu = sched_pctcpu(td);
963 kp->ki_estcpu = td->td_estcpu;
966 /* We can't get this anymore but ps etc never used it anyway. */
970 kp->ki_siglist = td->td_siglist;
971 kp->ki_sigmask = td->td_sigmask;
978 * Fill in a kinfo_proc structure for the specified process.
979 * Must be called with the target process locked.
982 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
985 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
987 fill_kinfo_proc_only(p, kp);
988 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
989 fill_kinfo_aggregate(p, kp);
996 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1000 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1003 pstats_fork(struct pstats *src, struct pstats *dst)
1006 bzero(&dst->pstat_startzero,
1007 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1008 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1009 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1013 pstats_free(struct pstats *ps)
1016 free(ps, M_SUBPROC);
1020 * Locate a zombie process by number
1027 sx_slock(&allproc_lock);
1028 LIST_FOREACH(p, &zombproc, p_list)
1029 if (p->p_pid == pid) {
1033 sx_sunlock(&allproc_lock);
1037 #define KERN_PROC_ZOMBMASK 0x3
1038 #define KERN_PROC_NOTHREADS 0x4
1040 #ifdef COMPAT_FREEBSD32
1043 * This function is typically used to copy out the kernel address, so
1044 * it can be replaced by assignment of zero.
1046 static inline uint32_t
1047 ptr32_trim(void *ptr)
1051 uptr = (uintptr_t)ptr;
1052 return ((uptr > UINT_MAX) ? 0 : uptr);
1055 #define PTRTRIM_CP(src,dst,fld) \
1056 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1059 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1063 bzero(ki32, sizeof(struct kinfo_proc32));
1064 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1065 CP(*ki, *ki32, ki_layout);
1066 PTRTRIM_CP(*ki, *ki32, ki_args);
1067 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1068 PTRTRIM_CP(*ki, *ki32, ki_addr);
1069 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1070 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1071 PTRTRIM_CP(*ki, *ki32, ki_fd);
1072 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1073 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1074 CP(*ki, *ki32, ki_pid);
1075 CP(*ki, *ki32, ki_ppid);
1076 CP(*ki, *ki32, ki_pgid);
1077 CP(*ki, *ki32, ki_tpgid);
1078 CP(*ki, *ki32, ki_sid);
1079 CP(*ki, *ki32, ki_tsid);
1080 CP(*ki, *ki32, ki_jobc);
1081 CP(*ki, *ki32, ki_tdev);
1082 CP(*ki, *ki32, ki_siglist);
1083 CP(*ki, *ki32, ki_sigmask);
1084 CP(*ki, *ki32, ki_sigignore);
1085 CP(*ki, *ki32, ki_sigcatch);
1086 CP(*ki, *ki32, ki_uid);
1087 CP(*ki, *ki32, ki_ruid);
1088 CP(*ki, *ki32, ki_svuid);
1089 CP(*ki, *ki32, ki_rgid);
1090 CP(*ki, *ki32, ki_svgid);
1091 CP(*ki, *ki32, ki_ngroups);
1092 for (i = 0; i < KI_NGROUPS; i++)
1093 CP(*ki, *ki32, ki_groups[i]);
1094 CP(*ki, *ki32, ki_size);
1095 CP(*ki, *ki32, ki_rssize);
1096 CP(*ki, *ki32, ki_swrss);
1097 CP(*ki, *ki32, ki_tsize);
1098 CP(*ki, *ki32, ki_dsize);
1099 CP(*ki, *ki32, ki_ssize);
1100 CP(*ki, *ki32, ki_xstat);
1101 CP(*ki, *ki32, ki_acflag);
1102 CP(*ki, *ki32, ki_pctcpu);
1103 CP(*ki, *ki32, ki_estcpu);
1104 CP(*ki, *ki32, ki_slptime);
1105 CP(*ki, *ki32, ki_swtime);
1106 CP(*ki, *ki32, ki_runtime);
1107 TV_CP(*ki, *ki32, ki_start);
1108 TV_CP(*ki, *ki32, ki_childtime);
1109 CP(*ki, *ki32, ki_flag);
1110 CP(*ki, *ki32, ki_kiflag);
1111 CP(*ki, *ki32, ki_traceflag);
1112 CP(*ki, *ki32, ki_stat);
1113 CP(*ki, *ki32, ki_nice);
1114 CP(*ki, *ki32, ki_lock);
1115 CP(*ki, *ki32, ki_rqindex);
1116 CP(*ki, *ki32, ki_oncpu);
1117 CP(*ki, *ki32, ki_lastcpu);
1118 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1119 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1120 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1121 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1122 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1123 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1124 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1125 CP(*ki, *ki32, ki_cr_flags);
1126 CP(*ki, *ki32, ki_jid);
1127 CP(*ki, *ki32, ki_numthreads);
1128 CP(*ki, *ki32, ki_tid);
1129 CP(*ki, *ki32, ki_pri);
1130 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1131 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1132 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1133 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1134 PTRTRIM_CP(*ki, *ki32, ki_udata);
1135 CP(*ki, *ki32, ki_sflag);
1136 CP(*ki, *ki32, ki_tdflags);
1140 sysctl_out_proc_copyout(struct kinfo_proc *ki, struct sysctl_req *req)
1142 struct kinfo_proc32 ki32;
1145 if (req->flags & SCTL_MASK32) {
1146 freebsd32_kinfo_proc_out(ki, &ki32);
1147 error = SYSCTL_OUT(req, &ki32, sizeof(struct kinfo_proc32));
1149 error = SYSCTL_OUT(req, ki, sizeof(struct kinfo_proc));
1154 sysctl_out_proc_copyout(struct kinfo_proc *ki, struct sysctl_req *req)
1157 return (SYSCTL_OUT(req, ki, sizeof(struct kinfo_proc)));
1162 * Must be called with the process locked and will return with it unlocked.
1165 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags)
1168 struct kinfo_proc kinfo_proc;
1171 pid_t pid = p->p_pid;
1173 PROC_LOCK_ASSERT(p, MA_OWNED);
1174 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1176 fill_kinfo_proc(p, &kinfo_proc);
1177 if (flags & KERN_PROC_NOTHREADS)
1178 error = sysctl_out_proc_copyout(&kinfo_proc, req);
1180 FOREACH_THREAD_IN_PROC(p, td) {
1181 fill_kinfo_thread(td, &kinfo_proc, 1);
1182 error = sysctl_out_proc_copyout(&kinfo_proc, req);
1190 if (flags & KERN_PROC_ZOMBMASK)
1208 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1210 int *name = (int *)arg1;
1211 u_int namelen = arg2;
1213 int flags, doingzomb, oid_number;
1216 oid_number = oidp->oid_number;
1217 if (oid_number != KERN_PROC_ALL &&
1218 (oid_number & KERN_PROC_INC_THREAD) == 0)
1219 flags = KERN_PROC_NOTHREADS;
1222 oid_number &= ~KERN_PROC_INC_THREAD;
1224 if (oid_number == KERN_PROC_PID) {
1227 error = sysctl_wire_old_buffer(req, 0);
1230 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1233 error = sysctl_out_proc(p, req, flags);
1237 switch (oid_number) {
1242 case KERN_PROC_PROC:
1243 if (namelen != 0 && namelen != 1)
1253 /* overestimate by 5 procs */
1254 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1258 error = sysctl_wire_old_buffer(req, 0);
1261 sx_slock(&allproc_lock);
1262 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1264 p = LIST_FIRST(&allproc);
1266 p = LIST_FIRST(&zombproc);
1267 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1269 * Skip embryonic processes.
1272 if (p->p_state == PRS_NEW) {
1276 KASSERT(p->p_ucred != NULL,
1277 ("process credential is NULL for non-NEW proc"));
1279 * Show a user only appropriate processes.
1281 if (p_cansee(curthread, p)) {
1286 * TODO - make more efficient (see notes below).
1289 switch (oid_number) {
1292 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1298 case KERN_PROC_PGRP:
1299 /* could do this by traversing pgrp */
1300 if (p->p_pgrp == NULL ||
1301 p->p_pgrp->pg_id != (pid_t)name[0]) {
1307 case KERN_PROC_RGID:
1308 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1314 case KERN_PROC_SESSION:
1315 if (p->p_session == NULL ||
1316 p->p_session->s_sid != (pid_t)name[0]) {
1323 if ((p->p_flag & P_CONTROLT) == 0 ||
1324 p->p_session == NULL) {
1328 /* XXX proctree_lock */
1329 SESS_LOCK(p->p_session);
1330 if (p->p_session->s_ttyp == NULL ||
1331 tty_udev(p->p_session->s_ttyp) !=
1333 SESS_UNLOCK(p->p_session);
1337 SESS_UNLOCK(p->p_session);
1341 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1347 case KERN_PROC_RUID:
1348 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1354 case KERN_PROC_PROC:
1362 error = sysctl_out_proc(p, req, flags | doingzomb);
1364 sx_sunlock(&allproc_lock);
1369 sx_sunlock(&allproc_lock);
1374 pargs_alloc(int len)
1378 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1380 refcount_init(&pa->ar_ref, 1);
1381 pa->ar_length = len;
1386 pargs_free(struct pargs *pa)
1393 pargs_hold(struct pargs *pa)
1398 refcount_acquire(&pa->ar_ref);
1402 pargs_drop(struct pargs *pa)
1407 if (refcount_release(&pa->ar_ref))
1412 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1418 iov.iov_base = (caddr_t)buf;
1422 uio.uio_offset = offset;
1423 uio.uio_resid = (ssize_t)len;
1424 uio.uio_segflg = UIO_SYSSPACE;
1425 uio.uio_rw = UIO_READ;
1428 return (proc_rwmem(p, &uio));
1432 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1438 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1440 * Reading the chunk may validly return EFAULT if the string is shorter
1441 * than the chunk and is aligned at the end of the page, assuming the
1442 * next page is not mapped. So if EFAULT is returned do a fallback to
1443 * one byte read loop.
1445 if (error == EFAULT) {
1446 for (i = 0; i < len; i++, buf++, sptr++) {
1447 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1458 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1460 enum proc_vector_type {
1466 #ifdef COMPAT_FREEBSD32
1468 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1469 size_t *vsizep, enum proc_vector_type type)
1471 struct freebsd32_ps_strings pss;
1473 vm_offset_t vptr, ptr;
1474 uint32_t *proc_vector32;
1479 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1485 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1486 vsize = pss.ps_nargvstr;
1487 if (vsize > ARG_MAX)
1489 size = vsize * sizeof(int32_t);
1492 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1493 vsize = pss.ps_nenvstr;
1494 if (vsize > ARG_MAX)
1496 size = vsize * sizeof(int32_t);
1499 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1500 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1503 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1504 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1507 if (aux.a_type == AT_NULL)
1511 if (aux.a_type != AT_NULL)
1514 size = vsize * sizeof(aux);
1517 KASSERT(0, ("Wrong proc vector type: %d", type));
1520 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1521 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1524 if (type == PROC_AUX) {
1525 *proc_vectorp = (char **)proc_vector32;
1529 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1530 for (i = 0; i < (int)vsize; i++)
1531 proc_vector[i] = PTRIN(proc_vector32[i]);
1532 *proc_vectorp = proc_vector;
1535 free(proc_vector32, M_TEMP);
1541 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1542 size_t *vsizep, enum proc_vector_type type)
1544 struct ps_strings pss;
1546 vm_offset_t vptr, ptr;
1551 #ifdef COMPAT_FREEBSD32
1552 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1553 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1555 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1561 vptr = (vm_offset_t)pss.ps_argvstr;
1562 vsize = pss.ps_nargvstr;
1563 if (vsize > ARG_MAX)
1565 size = vsize * sizeof(char *);
1568 vptr = (vm_offset_t)pss.ps_envstr;
1569 vsize = pss.ps_nenvstr;
1570 if (vsize > ARG_MAX)
1572 size = vsize * sizeof(char *);
1576 * The aux array is just above env array on the stack. Check
1577 * that the address is naturally aligned.
1579 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1581 #if __ELF_WORD_SIZE == 64
1582 if (vptr % sizeof(uint64_t) != 0)
1584 if (vptr % sizeof(uint32_t) != 0)
1588 * We count the array size reading the aux vectors from the
1589 * stack until AT_NULL vector is returned. So (to keep the code
1590 * simple) we read the process stack twice: the first time here
1591 * to find the size and the second time when copying the vectors
1592 * to the allocated proc_vector.
1594 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1595 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1598 if (aux.a_type == AT_NULL)
1603 * If the PROC_AUXV_MAX entries are iterated over, and we have
1604 * not reached AT_NULL, it is most likely we are reading wrong
1605 * data: either the process doesn't have auxv array or data has
1606 * been modified. Return the error in this case.
1608 if (aux.a_type != AT_NULL)
1611 size = vsize * sizeof(aux);
1614 KASSERT(0, ("Wrong proc vector type: %d", type));
1615 return (EINVAL); /* In case we are built without INVARIANTS. */
1617 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1618 if (proc_vector == NULL)
1620 error = proc_read_mem(td, p, vptr, proc_vector, size);
1622 free(proc_vector, M_TEMP);
1625 *proc_vectorp = proc_vector;
1631 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1634 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1635 enum proc_vector_type type)
1637 size_t done, len, nchr, vsize;
1639 char **proc_vector, *sptr;
1640 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1642 PROC_ASSERT_HELD(p);
1645 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1647 nchr = 2 * (PATH_MAX + ARG_MAX);
1649 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1652 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1654 * The program may have scribbled into its argv array, e.g. to
1655 * remove some arguments. If that has happened, break out
1656 * before trying to read from NULL.
1658 if (proc_vector[i] == NULL)
1660 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1661 error = proc_read_string(td, p, sptr, pss_string,
1662 sizeof(pss_string));
1665 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1666 if (done + len >= nchr)
1667 len = nchr - done - 1;
1668 sbuf_bcat(sb, pss_string, len);
1669 if (len != GET_PS_STRINGS_CHUNK_SZ)
1671 done += GET_PS_STRINGS_CHUNK_SZ;
1673 sbuf_bcat(sb, "", 1);
1677 free(proc_vector, M_TEMP);
1682 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1685 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1689 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1692 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1696 * This sysctl allows a process to retrieve the argument list or process
1697 * title for another process without groping around in the address space
1698 * of the other process. It also allow a process to set its own "process
1699 * title to a string of its own choice.
1702 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1704 int *name = (int *)arg1;
1705 u_int namelen = arg2;
1706 struct pargs *newpa, *pa;
1709 int flags, error = 0, error2;
1714 flags = PGET_CANSEE;
1715 if (req->newptr != NULL)
1716 flags |= PGET_ISCURRENT;
1717 error = pget((pid_t)name[0], flags, &p);
1725 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1727 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1730 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1731 error = proc_getargv(curthread, p, &sb);
1732 error2 = sbuf_finish(&sb);
1735 if (error == 0 && error2 != 0)
1740 if (error != 0 || req->newptr == NULL)
1743 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1745 newpa = pargs_alloc(req->newlen);
1746 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1760 * This sysctl allows a process to retrieve environment of another process.
1763 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1765 int *name = (int *)arg1;
1766 u_int namelen = arg2;
1774 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1777 if ((p->p_flag & P_SYSTEM) != 0) {
1782 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1783 error = proc_getenvv(curthread, p, &sb);
1784 error2 = sbuf_finish(&sb);
1787 return (error != 0 ? error : error2);
1791 * This sysctl allows a process to retrieve ELF auxiliary vector of
1795 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1797 int *name = (int *)arg1;
1798 u_int namelen = arg2;
1807 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1810 if ((p->p_flag & P_SYSTEM) != 0) {
1814 error = get_proc_vector(curthread, p, &auxv, &vsize, PROC_AUX);
1816 #ifdef COMPAT_FREEBSD32
1817 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1818 size = vsize * sizeof(Elf32_Auxinfo);
1821 size = vsize * sizeof(Elf_Auxinfo);
1823 error = SYSCTL_OUT(req, auxv, size);
1832 * This sysctl allows a process to retrieve the path of the executable for
1833 * itself or another process.
1836 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1838 pid_t *pidp = (pid_t *)arg1;
1839 unsigned int arglen = arg2;
1842 char *retbuf, *freebuf;
1843 int error, vfslocked;
1847 if (*pidp == -1) { /* -1 means this process */
1848 p = req->td->td_proc;
1850 error = pget(*pidp, PGET_CANSEE, &p);
1864 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1865 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
1867 VFS_UNLOCK_GIANT(vfslocked);
1870 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1871 free(freebuf, M_TEMP);
1876 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1889 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1892 sv_name = p->p_sysent->sv_name;
1894 return (sysctl_handle_string(oidp, sv_name, 0, req));
1897 #ifdef KINFO_OVMENTRY_SIZE
1898 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1901 #ifdef COMPAT_FREEBSD7
1903 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1905 vm_map_entry_t entry, tmp_entry;
1906 unsigned int last_timestamp;
1907 char *fullpath, *freepath;
1908 struct kinfo_ovmentry *kve;
1918 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1921 vm = vmspace_acquire_ref(p);
1926 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
1929 vm_map_lock_read(map);
1930 for (entry = map->header.next; entry != &map->header;
1931 entry = entry->next) {
1932 vm_object_t obj, tobj, lobj;
1936 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
1939 bzero(kve, sizeof(*kve));
1940 kve->kve_structsize = sizeof(*kve);
1942 kve->kve_private_resident = 0;
1943 obj = entry->object.vm_object;
1945 VM_OBJECT_LOCK(obj);
1946 if (obj->shadow_count == 1)
1947 kve->kve_private_resident =
1948 obj->resident_page_count;
1950 kve->kve_resident = 0;
1951 addr = entry->start;
1952 while (addr < entry->end) {
1953 if (pmap_extract(map->pmap, addr))
1954 kve->kve_resident++;
1958 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
1960 VM_OBJECT_LOCK(tobj);
1962 VM_OBJECT_UNLOCK(lobj);
1966 kve->kve_start = (void*)entry->start;
1967 kve->kve_end = (void*)entry->end;
1968 kve->kve_offset = (off_t)entry->offset;
1970 if (entry->protection & VM_PROT_READ)
1971 kve->kve_protection |= KVME_PROT_READ;
1972 if (entry->protection & VM_PROT_WRITE)
1973 kve->kve_protection |= KVME_PROT_WRITE;
1974 if (entry->protection & VM_PROT_EXECUTE)
1975 kve->kve_protection |= KVME_PROT_EXEC;
1977 if (entry->eflags & MAP_ENTRY_COW)
1978 kve->kve_flags |= KVME_FLAG_COW;
1979 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
1980 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
1981 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
1982 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
1984 last_timestamp = map->timestamp;
1985 vm_map_unlock_read(map);
1987 kve->kve_fileid = 0;
1993 switch (lobj->type) {
1995 kve->kve_type = KVME_TYPE_DEFAULT;
1998 kve->kve_type = KVME_TYPE_VNODE;
2003 kve->kve_type = KVME_TYPE_SWAP;
2006 kve->kve_type = KVME_TYPE_DEVICE;
2009 kve->kve_type = KVME_TYPE_PHYS;
2012 kve->kve_type = KVME_TYPE_DEAD;
2015 kve->kve_type = KVME_TYPE_SG;
2018 kve->kve_type = KVME_TYPE_UNKNOWN;
2022 VM_OBJECT_UNLOCK(lobj);
2024 kve->kve_ref_count = obj->ref_count;
2025 kve->kve_shadow_count = obj->shadow_count;
2026 VM_OBJECT_UNLOCK(obj);
2028 vn_fullpath(curthread, vp, &fullpath,
2030 cred = curthread->td_ucred;
2031 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2032 vn_lock(vp, LK_SHARED | LK_RETRY);
2033 if (VOP_GETATTR(vp, &va, cred) == 0) {
2034 kve->kve_fileid = va.va_fileid;
2035 kve->kve_fsid = va.va_fsid;
2038 VFS_UNLOCK_GIANT(vfslocked);
2041 kve->kve_type = KVME_TYPE_NONE;
2042 kve->kve_ref_count = 0;
2043 kve->kve_shadow_count = 0;
2046 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2047 if (freepath != NULL)
2048 free(freepath, M_TEMP);
2050 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2051 vm_map_lock_read(map);
2054 if (last_timestamp != map->timestamp) {
2055 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2059 vm_map_unlock_read(map);
2065 #endif /* COMPAT_FREEBSD7 */
2067 #ifdef KINFO_VMENTRY_SIZE
2068 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2072 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2074 vm_map_entry_t entry, tmp_entry;
2075 unsigned int last_timestamp;
2076 char *fullpath, *freepath;
2077 struct kinfo_vmentry *kve;
2087 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2090 vm = vmspace_acquire_ref(p);
2095 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2098 vm_map_lock_read(map);
2099 for (entry = map->header.next; entry != &map->header;
2100 entry = entry->next) {
2101 vm_object_t obj, tobj, lobj;
2103 vm_paddr_t locked_pa;
2104 int vfslocked, mincoreinfo;
2106 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2109 bzero(kve, sizeof(*kve));
2111 kve->kve_private_resident = 0;
2112 obj = entry->object.vm_object;
2114 VM_OBJECT_LOCK(obj);
2115 if (obj->shadow_count == 1)
2116 kve->kve_private_resident =
2117 obj->resident_page_count;
2119 kve->kve_resident = 0;
2120 addr = entry->start;
2121 while (addr < entry->end) {
2123 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2125 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2126 if (mincoreinfo & MINCORE_INCORE)
2127 kve->kve_resident++;
2128 if (mincoreinfo & MINCORE_SUPER)
2129 kve->kve_flags |= KVME_FLAG_SUPER;
2133 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2135 VM_OBJECT_LOCK(tobj);
2137 VM_OBJECT_UNLOCK(lobj);
2141 kve->kve_start = entry->start;
2142 kve->kve_end = entry->end;
2143 kve->kve_offset = entry->offset;
2145 if (entry->protection & VM_PROT_READ)
2146 kve->kve_protection |= KVME_PROT_READ;
2147 if (entry->protection & VM_PROT_WRITE)
2148 kve->kve_protection |= KVME_PROT_WRITE;
2149 if (entry->protection & VM_PROT_EXECUTE)
2150 kve->kve_protection |= KVME_PROT_EXEC;
2152 if (entry->eflags & MAP_ENTRY_COW)
2153 kve->kve_flags |= KVME_FLAG_COW;
2154 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2155 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2156 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2157 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2159 last_timestamp = map->timestamp;
2160 vm_map_unlock_read(map);
2166 switch (lobj->type) {
2168 kve->kve_type = KVME_TYPE_DEFAULT;
2171 kve->kve_type = KVME_TYPE_VNODE;
2176 kve->kve_type = KVME_TYPE_SWAP;
2179 kve->kve_type = KVME_TYPE_DEVICE;
2182 kve->kve_type = KVME_TYPE_PHYS;
2185 kve->kve_type = KVME_TYPE_DEAD;
2188 kve->kve_type = KVME_TYPE_SG;
2191 kve->kve_type = KVME_TYPE_UNKNOWN;
2195 VM_OBJECT_UNLOCK(lobj);
2197 kve->kve_ref_count = obj->ref_count;
2198 kve->kve_shadow_count = obj->shadow_count;
2199 VM_OBJECT_UNLOCK(obj);
2201 vn_fullpath(curthread, vp, &fullpath,
2203 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2204 cred = curthread->td_ucred;
2205 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2206 vn_lock(vp, LK_SHARED | LK_RETRY);
2207 if (VOP_GETATTR(vp, &va, cred) == 0) {
2208 kve->kve_vn_fileid = va.va_fileid;
2209 kve->kve_vn_fsid = va.va_fsid;
2211 MAKEIMODE(va.va_type, va.va_mode);
2212 kve->kve_vn_size = va.va_size;
2213 kve->kve_vn_rdev = va.va_rdev;
2214 kve->kve_status = KF_ATTR_VALID;
2217 VFS_UNLOCK_GIANT(vfslocked);
2220 kve->kve_type = KVME_TYPE_NONE;
2221 kve->kve_ref_count = 0;
2222 kve->kve_shadow_count = 0;
2225 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2226 if (freepath != NULL)
2227 free(freepath, M_TEMP);
2229 /* Pack record size down */
2230 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2231 strlen(kve->kve_path) + 1;
2232 kve->kve_structsize = roundup(kve->kve_structsize,
2234 error = SYSCTL_OUT(req, kve, kve->kve_structsize);
2235 vm_map_lock_read(map);
2238 if (last_timestamp != map->timestamp) {
2239 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2243 vm_map_unlock_read(map);
2250 #if defined(STACK) || defined(DDB)
2252 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2254 struct kinfo_kstack *kkstp;
2255 int error, i, *name, numthreads;
2256 lwpid_t *lwpidarray;
2263 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2267 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2268 st = stack_create();
2274 if (numthreads < p->p_numthreads) {
2275 if (lwpidarray != NULL) {
2276 free(lwpidarray, M_TEMP);
2279 numthreads = p->p_numthreads;
2281 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2289 * XXXRW: During the below loop, execve(2) and countless other sorts
2290 * of changes could have taken place. Should we check to see if the
2291 * vmspace has been replaced, or the like, in order to prevent
2292 * giving a snapshot that spans, say, execve(2), with some threads
2293 * before and some after? Among other things, the credentials could
2294 * have changed, in which case the right to extract debug info might
2295 * no longer be assured.
2297 FOREACH_THREAD_IN_PROC(p, td) {
2298 KASSERT(i < numthreads,
2299 ("sysctl_kern_proc_kstack: numthreads"));
2300 lwpidarray[i] = td->td_tid;
2304 for (i = 0; i < numthreads; i++) {
2305 td = thread_find(p, lwpidarray[i]);
2309 bzero(kkstp, sizeof(*kkstp));
2310 (void)sbuf_new(&sb, kkstp->kkst_trace,
2311 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2313 kkstp->kkst_tid = td->td_tid;
2314 if (TD_IS_SWAPPED(td))
2315 kkstp->kkst_state = KKST_STATE_SWAPPED;
2316 else if (TD_IS_RUNNING(td))
2317 kkstp->kkst_state = KKST_STATE_RUNNING;
2319 kkstp->kkst_state = KKST_STATE_STACKOK;
2320 stack_save_td(st, td);
2324 stack_sbuf_print(&sb, st);
2327 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2334 if (lwpidarray != NULL)
2335 free(lwpidarray, M_TEMP);
2337 free(kkstp, M_TEMP);
2343 * This sysctl allows a process to retrieve the full list of groups from
2344 * itself or another process.
2347 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2349 pid_t *pidp = (pid_t *)arg1;
2350 unsigned int arglen = arg2;
2357 if (*pidp == -1) { /* -1 means this process */
2358 p = req->td->td_proc;
2360 error = pget(*pidp, PGET_CANSEE, &p);
2365 cred = crhold(p->p_ucred);
2369 error = SYSCTL_OUT(req, cred->cr_groups,
2370 cred->cr_ngroups * sizeof(gid_t));
2376 * This sysctl allows a process to retrieve or/and set the resource limit for
2380 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2382 int *name = (int *)arg1;
2383 u_int namelen = arg2;
2392 which = (u_int)name[1];
2393 if (which >= RLIM_NLIMITS)
2396 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2399 flags = PGET_HOLD | PGET_NOTWEXIT;
2400 if (req->newptr != NULL)
2401 flags |= PGET_CANDEBUG;
2403 flags |= PGET_CANSEE;
2404 error = pget((pid_t)name[0], flags, &p);
2411 if (req->oldptr != NULL) {
2413 lim_rlimit(p, which, &rlim);
2416 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2423 if (req->newptr != NULL) {
2424 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2426 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2435 * This sysctl allows a process to retrieve ps_strings structure location of
2439 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2441 int *name = (int *)arg1;
2442 u_int namelen = arg2;
2444 vm_offset_t ps_strings;
2446 #ifdef COMPAT_FREEBSD32
2447 uint32_t ps_strings32;
2453 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2456 #ifdef COMPAT_FREEBSD32
2457 if ((req->flags & SCTL_MASK32) != 0) {
2459 * We return 0 if the 32 bit emulation request is for a 64 bit
2462 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2463 PTROUT(p->p_sysent->sv_psstrings) : 0;
2465 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2469 ps_strings = p->p_sysent->sv_psstrings;
2471 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2476 * This sysctl allows a process to retrieve umask of another process.
2479 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2481 int *name = (int *)arg1;
2482 u_int namelen = arg2;
2490 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2494 FILEDESC_SLOCK(p->p_fd);
2495 fd_cmask = p->p_fd->fd_cmask;
2496 FILEDESC_SUNLOCK(p->p_fd);
2498 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2502 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2504 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2505 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2506 "Return entire process table");
2508 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2509 sysctl_kern_proc, "Process table");
2511 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2512 sysctl_kern_proc, "Process table");
2514 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2515 sysctl_kern_proc, "Process table");
2517 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2518 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2520 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2521 sysctl_kern_proc, "Process table");
2523 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2524 sysctl_kern_proc, "Process table");
2526 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2527 sysctl_kern_proc, "Process table");
2529 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2530 sysctl_kern_proc, "Process table");
2532 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2533 sysctl_kern_proc, "Return process table, no threads");
2535 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2536 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2537 sysctl_kern_proc_args, "Process argument list");
2539 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2540 sysctl_kern_proc_env, "Process environment");
2542 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2543 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2545 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2546 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2548 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2549 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2550 "Process syscall vector name (ABI type)");
2552 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2553 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2555 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2556 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2558 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2559 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2561 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2562 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2564 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2565 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2567 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2568 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2570 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2571 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2573 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2574 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2576 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2577 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2578 "Return process table, no threads");
2580 #ifdef COMPAT_FREEBSD7
2581 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2582 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2585 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2586 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2588 #if defined(STACK) || defined(DDB)
2589 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2590 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2593 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2594 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2596 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2597 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2598 "Process resource limits");
2600 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2601 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2602 "Process ps_strings location");
2604 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2605 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");