2 * Copyright (c) 1982, 1986, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
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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.
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14 * may be used to endorse or promote products derived from this software
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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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);
318 sx_slock(&allproc_lock);
319 FOREACH_PROC_IN_SYSTEM(p) {
321 if (p->p_state == PRS_NEW) {
325 FOREACH_THREAD_IN_PROC(p, td) {
326 if (td->td_tid == tid)
332 sx_sunlock(&allproc_lock);
337 * Locate a process group by number.
338 * The caller must hold proctree_lock.
344 register struct pgrp *pgrp;
346 sx_assert(&proctree_lock, SX_LOCKED);
348 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
349 if (pgrp->pg_id == pgid) {
358 * Locate process and do additional manipulations, depending on flags.
361 pget(pid_t pid, int flags, struct proc **pp)
368 else if ((flags & PGET_NOTID) == 0)
374 if ((flags & PGET_CANSEE) != 0) {
375 error = p_cansee(curthread, p);
379 if ((flags & PGET_CANDEBUG) != 0) {
380 error = p_candebug(curthread, p);
384 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
388 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
392 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
394 * XXXRW: Not clear ESRCH is the right error during proc
400 if ((flags & PGET_HOLD) != 0) {
412 * Create a new process group.
413 * pgid must be equal to the pid of p.
414 * Begin a new session if required.
417 enterpgrp(p, pgid, pgrp, sess)
418 register struct proc *p;
421 struct session *sess;
425 sx_assert(&proctree_lock, SX_XLOCKED);
427 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
428 KASSERT(p->p_pid == pgid,
429 ("enterpgrp: new pgrp and pid != pgid"));
431 pgrp2 = pgfind(pgid);
433 KASSERT(pgrp2 == NULL,
434 ("enterpgrp: pgrp with pgid exists"));
435 KASSERT(!SESS_LEADER(p),
436 ("enterpgrp: session leader attempted setpgrp"));
438 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
444 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
446 p->p_flag &= ~P_CONTROLT;
450 sess->s_sid = p->p_pid;
451 refcount_init(&sess->s_count, 1);
452 sess->s_ttyvp = NULL;
453 sess->s_ttydp = NULL;
455 bcopy(p->p_session->s_login, sess->s_login,
456 sizeof(sess->s_login));
457 pgrp->pg_session = sess;
458 KASSERT(p == curproc,
459 ("enterpgrp: mksession and p != curproc"));
461 pgrp->pg_session = p->p_session;
462 sess_hold(pgrp->pg_session);
466 LIST_INIT(&pgrp->pg_members);
469 * As we have an exclusive lock of proctree_lock,
470 * this should not deadlock.
472 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
474 SLIST_INIT(&pgrp->pg_sigiolst);
477 doenterpgrp(p, pgrp);
483 * Move p to an existing process group
486 enterthispgrp(p, pgrp)
487 register struct proc *p;
491 sx_assert(&proctree_lock, SX_XLOCKED);
492 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
493 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
494 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
495 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
496 KASSERT(pgrp->pg_session == p->p_session,
497 ("%s: pgrp's session %p, p->p_session %p.\n",
501 KASSERT(pgrp != p->p_pgrp,
502 ("%s: p belongs to pgrp.", __func__));
504 doenterpgrp(p, pgrp);
510 * Move p to a process group
517 struct pgrp *savepgrp;
519 sx_assert(&proctree_lock, SX_XLOCKED);
520 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
521 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
522 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
523 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
525 savepgrp = p->p_pgrp;
528 * Adjust eligibility of affected pgrps to participate in job control.
529 * Increment eligibility counts before decrementing, otherwise we
530 * could reach 0 spuriously during the first call.
533 fixjobc(p, p->p_pgrp, 0);
538 LIST_REMOVE(p, p_pglist);
541 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
542 PGRP_UNLOCK(savepgrp);
544 if (LIST_EMPTY(&savepgrp->pg_members))
549 * remove process from process group
553 register struct proc *p;
555 struct pgrp *savepgrp;
557 sx_assert(&proctree_lock, SX_XLOCKED);
558 savepgrp = p->p_pgrp;
561 LIST_REMOVE(p, p_pglist);
564 PGRP_UNLOCK(savepgrp);
565 if (LIST_EMPTY(&savepgrp->pg_members))
571 * delete a process group
575 register struct pgrp *pgrp;
577 struct session *savesess;
580 sx_assert(&proctree_lock, SX_XLOCKED);
581 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
582 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
585 * Reset any sigio structures pointing to us as a result of
586 * F_SETOWN with our pgid.
588 funsetownlst(&pgrp->pg_sigiolst);
591 tp = pgrp->pg_session->s_ttyp;
592 LIST_REMOVE(pgrp, pg_hash);
593 savesess = pgrp->pg_session;
596 /* Remove the reference to the pgrp before deallocating it. */
599 tty_rel_pgrp(tp, pgrp);
602 mtx_destroy(&pgrp->pg_mtx);
604 sess_release(savesess);
608 pgadjustjobc(pgrp, entering)
618 if (pgrp->pg_jobc == 0)
625 * Adjust pgrp jobc counters when specified process changes process group.
626 * We count the number of processes in each process group that "qualify"
627 * the group for terminal job control (those with a parent in a different
628 * process group of the same session). If that count reaches zero, the
629 * process group becomes orphaned. Check both the specified process'
630 * process group and that of its children.
631 * entering == 0 => p is leaving specified group.
632 * entering == 1 => p is entering specified group.
635 fixjobc(p, pgrp, entering)
636 register struct proc *p;
637 register struct pgrp *pgrp;
640 register struct pgrp *hispgrp;
641 register struct session *mysession;
643 sx_assert(&proctree_lock, SX_LOCKED);
644 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
645 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
646 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
649 * Check p's parent to see whether p qualifies its own process
650 * group; if so, adjust count for p's process group.
652 mysession = pgrp->pg_session;
653 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
654 hispgrp->pg_session == mysession)
655 pgadjustjobc(pgrp, entering);
658 * Check this process' children to see whether they qualify
659 * their process groups; if so, adjust counts for children's
662 LIST_FOREACH(p, &p->p_children, p_sibling) {
664 if (hispgrp == pgrp ||
665 hispgrp->pg_session != mysession)
668 if (p->p_state == PRS_ZOMBIE) {
673 pgadjustjobc(hispgrp, entering);
678 * A process group has become orphaned;
679 * if there are any stopped processes in the group,
680 * hang-up all process in that group.
686 register struct proc *p;
688 PGRP_LOCK_ASSERT(pg, MA_OWNED);
690 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
692 if (P_SHOULDSTOP(p)) {
694 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
696 kern_psignal(p, SIGHUP);
697 kern_psignal(p, SIGCONT);
707 sess_hold(struct session *s)
710 refcount_acquire(&s->s_count);
714 sess_release(struct session *s)
717 if (refcount_release(&s->s_count)) {
718 if (s->s_ttyp != NULL) {
720 tty_rel_sess(s->s_ttyp, s);
722 mtx_destroy(&s->s_mtx);
731 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
733 register struct pgrp *pgrp;
734 register struct proc *p;
737 for (i = 0; i <= pgrphash; i++) {
738 if (!LIST_EMPTY(&pgrphashtbl[i])) {
739 printf("\tindx %d\n", i);
740 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
742 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
743 (void *)pgrp, (long)pgrp->pg_id,
744 (void *)pgrp->pg_session,
745 pgrp->pg_session->s_count,
746 (void *)LIST_FIRST(&pgrp->pg_members));
747 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
748 printf("\t\tpid %ld addr %p pgrp %p\n",
749 (long)p->p_pid, (void *)p,
759 * Calculate the kinfo_proc members which contain process-wide
761 * Must be called with the target process locked.
764 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
768 PROC_LOCK_ASSERT(p, MA_OWNED);
772 FOREACH_THREAD_IN_PROC(p, td) {
774 kp->ki_pctcpu += sched_pctcpu(td);
775 kp->ki_estcpu += td->td_estcpu;
781 * Clear kinfo_proc and fill in any information that is common
782 * to all threads in the process.
783 * Must be called with the target process locked.
786 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
794 PROC_LOCK_ASSERT(p, MA_OWNED);
795 bzero(kp, sizeof(*kp));
797 kp->ki_structsize = sizeof(*kp);
799 kp->ki_addr =/* p->p_addr; */0; /* XXX */
800 kp->ki_args = p->p_args;
801 kp->ki_textvp = p->p_textvp;
803 kp->ki_tracep = p->p_tracevp;
804 kp->ki_traceflag = p->p_traceflag;
807 kp->ki_vmspace = p->p_vmspace;
808 kp->ki_flag = p->p_flag;
811 kp->ki_uid = cred->cr_uid;
812 kp->ki_ruid = cred->cr_ruid;
813 kp->ki_svuid = cred->cr_svuid;
815 if (cred->cr_flags & CRED_FLAG_CAPMODE)
816 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
817 /* XXX bde doesn't like KI_NGROUPS */
818 if (cred->cr_ngroups > KI_NGROUPS) {
819 kp->ki_ngroups = KI_NGROUPS;
820 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
822 kp->ki_ngroups = cred->cr_ngroups;
823 bcopy(cred->cr_groups, kp->ki_groups,
824 kp->ki_ngroups * sizeof(gid_t));
825 kp->ki_rgid = cred->cr_rgid;
826 kp->ki_svgid = cred->cr_svgid;
827 /* If jailed(cred), emulate the old P_JAILED flag. */
829 kp->ki_flag |= P_JAILED;
830 /* If inside the jail, use 0 as a jail ID. */
831 if (cred->cr_prison != curthread->td_ucred->cr_prison)
832 kp->ki_jid = cred->cr_prison->pr_id;
834 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
835 sizeof(kp->ki_loginclass));
839 mtx_lock(&ps->ps_mtx);
840 kp->ki_sigignore = ps->ps_sigignore;
841 kp->ki_sigcatch = ps->ps_sigcatch;
842 mtx_unlock(&ps->ps_mtx);
844 if (p->p_state != PRS_NEW &&
845 p->p_state != PRS_ZOMBIE &&
846 p->p_vmspace != NULL) {
847 struct vmspace *vm = p->p_vmspace;
849 kp->ki_size = vm->vm_map.size;
850 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
851 FOREACH_THREAD_IN_PROC(p, td0) {
852 if (!TD_IS_SWAPPED(td0))
853 kp->ki_rssize += td0->td_kstack_pages;
855 kp->ki_swrss = vm->vm_swrss;
856 kp->ki_tsize = vm->vm_tsize;
857 kp->ki_dsize = vm->vm_dsize;
858 kp->ki_ssize = vm->vm_ssize;
859 } else if (p->p_state == PRS_ZOMBIE)
861 if (kp->ki_flag & P_INMEM)
862 kp->ki_sflag = PS_INMEM;
865 /* Calculate legacy swtime as seconds since 'swtick'. */
866 kp->ki_swtime = (ticks - p->p_swtick) / hz;
867 kp->ki_pid = p->p_pid;
868 kp->ki_nice = p->p_nice;
869 kp->ki_start = p->p_stats->p_start;
870 timevaladd(&kp->ki_start, &boottime);
872 rufetch(p, &kp->ki_rusage);
873 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
874 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
876 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
877 /* Some callers want child times in a single value. */
878 kp->ki_childtime = kp->ki_childstime;
879 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
881 FOREACH_THREAD_IN_PROC(p, td0)
882 kp->ki_cow += td0->td_cow;
886 kp->ki_pgid = p->p_pgrp->pg_id;
887 kp->ki_jobc = p->p_pgrp->pg_jobc;
888 sp = p->p_pgrp->pg_session;
891 kp->ki_sid = sp->s_sid;
893 strlcpy(kp->ki_login, sp->s_login,
894 sizeof(kp->ki_login));
896 kp->ki_kiflag |= KI_CTTY;
898 kp->ki_kiflag |= KI_SLEADER;
899 /* XXX proctree_lock */
904 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
905 kp->ki_tdev = tty_udev(tp);
906 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
908 kp->ki_tsid = tp->t_session->s_sid;
911 if (p->p_comm[0] != '\0')
912 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
913 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
914 p->p_sysent->sv_name[0] != '\0')
915 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
916 kp->ki_siglist = p->p_siglist;
917 kp->ki_xstat = p->p_xstat;
918 kp->ki_acflag = p->p_acflag;
919 kp->ki_lock = p->p_lock;
921 kp->ki_ppid = p->p_pptr->p_pid;
925 * Fill in information that is thread specific. Must be called with
926 * target process locked. If 'preferthread' is set, overwrite certain
927 * process-related fields that are maintained for both threads and
931 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
937 PROC_LOCK_ASSERT(p, MA_OWNED);
942 if (td->td_wmesg != NULL)
943 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
945 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
946 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
947 if (TD_ON_LOCK(td)) {
948 kp->ki_kiflag |= KI_LOCKBLOCK;
949 strlcpy(kp->ki_lockname, td->td_lockname,
950 sizeof(kp->ki_lockname));
952 kp->ki_kiflag &= ~KI_LOCKBLOCK;
953 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
956 if (p->p_state == PRS_NORMAL) { /* approximate. */
957 if (TD_ON_RUNQ(td) ||
961 } else if (P_SHOULDSTOP(p)) {
963 } else if (TD_IS_SLEEPING(td)) {
964 kp->ki_stat = SSLEEP;
965 } else if (TD_ON_LOCK(td)) {
970 } else if (p->p_state == PRS_ZOMBIE) {
976 /* Things in the thread */
977 kp->ki_wchan = td->td_wchan;
978 kp->ki_pri.pri_level = td->td_priority;
979 kp->ki_pri.pri_native = td->td_base_pri;
980 kp->ki_lastcpu = td->td_lastcpu;
981 kp->ki_oncpu = td->td_oncpu;
982 kp->ki_tdflags = td->td_flags;
983 kp->ki_tid = td->td_tid;
984 kp->ki_numthreads = p->p_numthreads;
985 kp->ki_pcb = td->td_pcb;
986 kp->ki_kstack = (void *)td->td_kstack;
987 kp->ki_slptime = (ticks - td->td_slptick) / hz;
988 kp->ki_pri.pri_class = td->td_pri_class;
989 kp->ki_pri.pri_user = td->td_user_pri;
992 rufetchtd(td, &kp->ki_rusage);
993 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
994 kp->ki_pctcpu = sched_pctcpu(td);
995 kp->ki_estcpu = td->td_estcpu;
996 kp->ki_cow = td->td_cow;
999 /* We can't get this anymore but ps etc never used it anyway. */
1003 kp->ki_siglist = td->td_siglist;
1004 kp->ki_sigmask = td->td_sigmask;
1011 * Fill in a kinfo_proc structure for the specified process.
1012 * Must be called with the target process locked.
1015 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1018 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1020 fill_kinfo_proc_only(p, kp);
1021 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1022 fill_kinfo_aggregate(p, kp);
1029 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1033 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1036 pstats_fork(struct pstats *src, struct pstats *dst)
1039 bzero(&dst->pstat_startzero,
1040 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1041 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1042 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1046 pstats_free(struct pstats *ps)
1049 free(ps, M_SUBPROC);
1053 * Locate a zombie process by number
1060 sx_slock(&allproc_lock);
1061 LIST_FOREACH(p, &zombproc, p_list)
1062 if (p->p_pid == pid) {
1066 sx_sunlock(&allproc_lock);
1070 #define KERN_PROC_ZOMBMASK 0x3
1071 #define KERN_PROC_NOTHREADS 0x4
1073 #ifdef COMPAT_FREEBSD32
1076 * This function is typically used to copy out the kernel address, so
1077 * it can be replaced by assignment of zero.
1079 static inline uint32_t
1080 ptr32_trim(void *ptr)
1084 uptr = (uintptr_t)ptr;
1085 return ((uptr > UINT_MAX) ? 0 : uptr);
1088 #define PTRTRIM_CP(src,dst,fld) \
1089 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1092 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1096 bzero(ki32, sizeof(struct kinfo_proc32));
1097 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1098 CP(*ki, *ki32, ki_layout);
1099 PTRTRIM_CP(*ki, *ki32, ki_args);
1100 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1101 PTRTRIM_CP(*ki, *ki32, ki_addr);
1102 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1103 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1104 PTRTRIM_CP(*ki, *ki32, ki_fd);
1105 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1106 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1107 CP(*ki, *ki32, ki_pid);
1108 CP(*ki, *ki32, ki_ppid);
1109 CP(*ki, *ki32, ki_pgid);
1110 CP(*ki, *ki32, ki_tpgid);
1111 CP(*ki, *ki32, ki_sid);
1112 CP(*ki, *ki32, ki_tsid);
1113 CP(*ki, *ki32, ki_jobc);
1114 CP(*ki, *ki32, ki_tdev);
1115 CP(*ki, *ki32, ki_siglist);
1116 CP(*ki, *ki32, ki_sigmask);
1117 CP(*ki, *ki32, ki_sigignore);
1118 CP(*ki, *ki32, ki_sigcatch);
1119 CP(*ki, *ki32, ki_uid);
1120 CP(*ki, *ki32, ki_ruid);
1121 CP(*ki, *ki32, ki_svuid);
1122 CP(*ki, *ki32, ki_rgid);
1123 CP(*ki, *ki32, ki_svgid);
1124 CP(*ki, *ki32, ki_ngroups);
1125 for (i = 0; i < KI_NGROUPS; i++)
1126 CP(*ki, *ki32, ki_groups[i]);
1127 CP(*ki, *ki32, ki_size);
1128 CP(*ki, *ki32, ki_rssize);
1129 CP(*ki, *ki32, ki_swrss);
1130 CP(*ki, *ki32, ki_tsize);
1131 CP(*ki, *ki32, ki_dsize);
1132 CP(*ki, *ki32, ki_ssize);
1133 CP(*ki, *ki32, ki_xstat);
1134 CP(*ki, *ki32, ki_acflag);
1135 CP(*ki, *ki32, ki_pctcpu);
1136 CP(*ki, *ki32, ki_estcpu);
1137 CP(*ki, *ki32, ki_slptime);
1138 CP(*ki, *ki32, ki_swtime);
1139 CP(*ki, *ki32, ki_cow);
1140 CP(*ki, *ki32, ki_runtime);
1141 TV_CP(*ki, *ki32, ki_start);
1142 TV_CP(*ki, *ki32, ki_childtime);
1143 CP(*ki, *ki32, ki_flag);
1144 CP(*ki, *ki32, ki_kiflag);
1145 CP(*ki, *ki32, ki_traceflag);
1146 CP(*ki, *ki32, ki_stat);
1147 CP(*ki, *ki32, ki_nice);
1148 CP(*ki, *ki32, ki_lock);
1149 CP(*ki, *ki32, ki_rqindex);
1150 CP(*ki, *ki32, ki_oncpu);
1151 CP(*ki, *ki32, ki_lastcpu);
1152 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1153 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1154 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1155 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1156 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1157 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1158 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1159 CP(*ki, *ki32, ki_cr_flags);
1160 CP(*ki, *ki32, ki_jid);
1161 CP(*ki, *ki32, ki_numthreads);
1162 CP(*ki, *ki32, ki_tid);
1163 CP(*ki, *ki32, ki_pri);
1164 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1165 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1166 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1167 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1168 PTRTRIM_CP(*ki, *ki32, ki_udata);
1169 CP(*ki, *ki32, ki_sflag);
1170 CP(*ki, *ki32, ki_tdflags);
1174 sysctl_out_proc_copyout(struct kinfo_proc *ki, struct sysctl_req *req)
1176 struct kinfo_proc32 ki32;
1179 if (req->flags & SCTL_MASK32) {
1180 freebsd32_kinfo_proc_out(ki, &ki32);
1181 error = SYSCTL_OUT(req, &ki32, sizeof(struct kinfo_proc32));
1183 error = SYSCTL_OUT(req, ki, sizeof(struct kinfo_proc));
1188 sysctl_out_proc_copyout(struct kinfo_proc *ki, struct sysctl_req *req)
1191 return (SYSCTL_OUT(req, ki, sizeof(struct kinfo_proc)));
1196 * Must be called with the process locked and will return with it unlocked.
1199 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags)
1202 struct kinfo_proc kinfo_proc;
1205 pid_t pid = p->p_pid;
1207 PROC_LOCK_ASSERT(p, MA_OWNED);
1208 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1210 fill_kinfo_proc(p, &kinfo_proc);
1211 if (flags & KERN_PROC_NOTHREADS)
1212 error = sysctl_out_proc_copyout(&kinfo_proc, req);
1214 FOREACH_THREAD_IN_PROC(p, td) {
1215 fill_kinfo_thread(td, &kinfo_proc, 1);
1216 error = sysctl_out_proc_copyout(&kinfo_proc, req);
1224 if (flags & KERN_PROC_ZOMBMASK)
1242 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1244 int *name = (int *)arg1;
1245 u_int namelen = arg2;
1247 int flags, doingzomb, oid_number;
1250 oid_number = oidp->oid_number;
1251 if (oid_number != KERN_PROC_ALL &&
1252 (oid_number & KERN_PROC_INC_THREAD) == 0)
1253 flags = KERN_PROC_NOTHREADS;
1256 oid_number &= ~KERN_PROC_INC_THREAD;
1258 if (oid_number == KERN_PROC_PID) {
1261 error = sysctl_wire_old_buffer(req, 0);
1264 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1267 error = sysctl_out_proc(p, req, flags);
1271 switch (oid_number) {
1276 case KERN_PROC_PROC:
1277 if (namelen != 0 && namelen != 1)
1287 /* overestimate by 5 procs */
1288 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1292 error = sysctl_wire_old_buffer(req, 0);
1295 sx_slock(&allproc_lock);
1296 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1298 p = LIST_FIRST(&allproc);
1300 p = LIST_FIRST(&zombproc);
1301 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1303 * Skip embryonic processes.
1306 if (p->p_state == PRS_NEW) {
1310 KASSERT(p->p_ucred != NULL,
1311 ("process credential is NULL for non-NEW proc"));
1313 * Show a user only appropriate processes.
1315 if (p_cansee(curthread, p)) {
1320 * TODO - make more efficient (see notes below).
1323 switch (oid_number) {
1326 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1332 case KERN_PROC_PGRP:
1333 /* could do this by traversing pgrp */
1334 if (p->p_pgrp == NULL ||
1335 p->p_pgrp->pg_id != (pid_t)name[0]) {
1341 case KERN_PROC_RGID:
1342 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1348 case KERN_PROC_SESSION:
1349 if (p->p_session == NULL ||
1350 p->p_session->s_sid != (pid_t)name[0]) {
1357 if ((p->p_flag & P_CONTROLT) == 0 ||
1358 p->p_session == NULL) {
1362 /* XXX proctree_lock */
1363 SESS_LOCK(p->p_session);
1364 if (p->p_session->s_ttyp == NULL ||
1365 tty_udev(p->p_session->s_ttyp) !=
1367 SESS_UNLOCK(p->p_session);
1371 SESS_UNLOCK(p->p_session);
1375 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1381 case KERN_PROC_RUID:
1382 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1388 case KERN_PROC_PROC:
1396 error = sysctl_out_proc(p, req, flags | doingzomb);
1398 sx_sunlock(&allproc_lock);
1403 sx_sunlock(&allproc_lock);
1408 pargs_alloc(int len)
1412 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1414 refcount_init(&pa->ar_ref, 1);
1415 pa->ar_length = len;
1420 pargs_free(struct pargs *pa)
1427 pargs_hold(struct pargs *pa)
1432 refcount_acquire(&pa->ar_ref);
1436 pargs_drop(struct pargs *pa)
1441 if (refcount_release(&pa->ar_ref))
1446 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1452 iov.iov_base = (caddr_t)buf;
1456 uio.uio_offset = offset;
1457 uio.uio_resid = (ssize_t)len;
1458 uio.uio_segflg = UIO_SYSSPACE;
1459 uio.uio_rw = UIO_READ;
1462 return (proc_rwmem(p, &uio));
1466 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1472 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1474 * Reading the chunk may validly return EFAULT if the string is shorter
1475 * than the chunk and is aligned at the end of the page, assuming the
1476 * next page is not mapped. So if EFAULT is returned do a fallback to
1477 * one byte read loop.
1479 if (error == EFAULT) {
1480 for (i = 0; i < len; i++, buf++, sptr++) {
1481 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1492 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1494 enum proc_vector_type {
1500 #ifdef COMPAT_FREEBSD32
1502 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1503 size_t *vsizep, enum proc_vector_type type)
1505 struct freebsd32_ps_strings pss;
1507 vm_offset_t vptr, ptr;
1508 uint32_t *proc_vector32;
1513 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1519 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1520 vsize = pss.ps_nargvstr;
1521 if (vsize > ARG_MAX)
1523 size = vsize * sizeof(int32_t);
1526 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1527 vsize = pss.ps_nenvstr;
1528 if (vsize > ARG_MAX)
1530 size = vsize * sizeof(int32_t);
1533 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1534 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1537 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1538 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1541 if (aux.a_type == AT_NULL)
1545 if (aux.a_type != AT_NULL)
1548 size = vsize * sizeof(aux);
1551 KASSERT(0, ("Wrong proc vector type: %d", type));
1554 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1555 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1558 if (type == PROC_AUX) {
1559 *proc_vectorp = (char **)proc_vector32;
1563 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1564 for (i = 0; i < (int)vsize; i++)
1565 proc_vector[i] = PTRIN(proc_vector32[i]);
1566 *proc_vectorp = proc_vector;
1569 free(proc_vector32, M_TEMP);
1575 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1576 size_t *vsizep, enum proc_vector_type type)
1578 struct ps_strings pss;
1580 vm_offset_t vptr, ptr;
1585 #ifdef COMPAT_FREEBSD32
1586 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1587 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1589 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1595 vptr = (vm_offset_t)pss.ps_argvstr;
1596 vsize = pss.ps_nargvstr;
1597 if (vsize > ARG_MAX)
1599 size = vsize * sizeof(char *);
1602 vptr = (vm_offset_t)pss.ps_envstr;
1603 vsize = pss.ps_nenvstr;
1604 if (vsize > ARG_MAX)
1606 size = vsize * sizeof(char *);
1610 * The aux array is just above env array on the stack. Check
1611 * that the address is naturally aligned.
1613 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1615 #if __ELF_WORD_SIZE == 64
1616 if (vptr % sizeof(uint64_t) != 0)
1618 if (vptr % sizeof(uint32_t) != 0)
1622 * We count the array size reading the aux vectors from the
1623 * stack until AT_NULL vector is returned. So (to keep the code
1624 * simple) we read the process stack twice: the first time here
1625 * to find the size and the second time when copying the vectors
1626 * to the allocated proc_vector.
1628 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1629 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1632 if (aux.a_type == AT_NULL)
1637 * If the PROC_AUXV_MAX entries are iterated over, and we have
1638 * not reached AT_NULL, it is most likely we are reading wrong
1639 * data: either the process doesn't have auxv array or data has
1640 * been modified. Return the error in this case.
1642 if (aux.a_type != AT_NULL)
1645 size = vsize * sizeof(aux);
1648 KASSERT(0, ("Wrong proc vector type: %d", type));
1649 return (EINVAL); /* In case we are built without INVARIANTS. */
1651 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1652 if (proc_vector == NULL)
1654 error = proc_read_mem(td, p, vptr, proc_vector, size);
1656 free(proc_vector, M_TEMP);
1659 *proc_vectorp = proc_vector;
1665 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1668 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1669 enum proc_vector_type type)
1671 size_t done, len, nchr, vsize;
1673 char **proc_vector, *sptr;
1674 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1676 PROC_ASSERT_HELD(p);
1679 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1681 nchr = 2 * (PATH_MAX + ARG_MAX);
1683 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1686 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1688 * The program may have scribbled into its argv array, e.g. to
1689 * remove some arguments. If that has happened, break out
1690 * before trying to read from NULL.
1692 if (proc_vector[i] == NULL)
1694 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1695 error = proc_read_string(td, p, sptr, pss_string,
1696 sizeof(pss_string));
1699 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1700 if (done + len >= nchr)
1701 len = nchr - done - 1;
1702 sbuf_bcat(sb, pss_string, len);
1703 if (len != GET_PS_STRINGS_CHUNK_SZ)
1705 done += GET_PS_STRINGS_CHUNK_SZ;
1707 sbuf_bcat(sb, "", 1);
1711 free(proc_vector, M_TEMP);
1716 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1719 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1723 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1726 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1730 * This sysctl allows a process to retrieve the argument list or process
1731 * title for another process without groping around in the address space
1732 * of the other process. It also allow a process to set its own "process
1733 * title to a string of its own choice.
1736 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1738 int *name = (int *)arg1;
1739 u_int namelen = arg2;
1740 struct pargs *newpa, *pa;
1743 int flags, error = 0, error2;
1748 flags = PGET_CANSEE;
1749 if (req->newptr != NULL)
1750 flags |= PGET_ISCURRENT;
1751 error = pget((pid_t)name[0], flags, &p);
1759 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1761 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1764 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1765 error = proc_getargv(curthread, p, &sb);
1766 error2 = sbuf_finish(&sb);
1769 if (error == 0 && error2 != 0)
1774 if (error != 0 || req->newptr == NULL)
1777 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1779 newpa = pargs_alloc(req->newlen);
1780 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1794 * This sysctl allows a process to retrieve environment of another process.
1797 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1799 int *name = (int *)arg1;
1800 u_int namelen = arg2;
1808 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1811 if ((p->p_flag & P_SYSTEM) != 0) {
1816 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1817 error = proc_getenvv(curthread, p, &sb);
1818 error2 = sbuf_finish(&sb);
1821 return (error != 0 ? error : error2);
1825 * This sysctl allows a process to retrieve ELF auxiliary vector of
1829 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1831 int *name = (int *)arg1;
1832 u_int namelen = arg2;
1841 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1844 if ((p->p_flag & P_SYSTEM) != 0) {
1848 error = get_proc_vector(curthread, p, &auxv, &vsize, PROC_AUX);
1850 #ifdef COMPAT_FREEBSD32
1851 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1852 size = vsize * sizeof(Elf32_Auxinfo);
1855 size = vsize * sizeof(Elf_Auxinfo);
1857 error = SYSCTL_OUT(req, auxv, size);
1866 * This sysctl allows a process to retrieve the path of the executable for
1867 * itself or another process.
1870 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1872 pid_t *pidp = (pid_t *)arg1;
1873 unsigned int arglen = arg2;
1876 char *retbuf, *freebuf;
1877 int error, vfslocked;
1881 if (*pidp == -1) { /* -1 means this process */
1882 p = req->td->td_proc;
1884 error = pget(*pidp, PGET_CANSEE, &p);
1898 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1899 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
1901 VFS_UNLOCK_GIANT(vfslocked);
1904 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1905 free(freebuf, M_TEMP);
1910 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1923 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1926 sv_name = p->p_sysent->sv_name;
1928 return (sysctl_handle_string(oidp, sv_name, 0, req));
1931 #ifdef KINFO_OVMENTRY_SIZE
1932 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1935 #ifdef COMPAT_FREEBSD7
1937 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1939 vm_map_entry_t entry, tmp_entry;
1940 unsigned int last_timestamp;
1941 char *fullpath, *freepath;
1942 struct kinfo_ovmentry *kve;
1952 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1955 vm = vmspace_acquire_ref(p);
1960 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
1962 map = &p->p_vmspace->vm_map; /* XXXRW: More locking required? */
1963 vm_map_lock_read(map);
1964 for (entry = map->header.next; entry != &map->header;
1965 entry = entry->next) {
1966 vm_object_t obj, tobj, lobj;
1970 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
1973 bzero(kve, sizeof(*kve));
1974 kve->kve_structsize = sizeof(*kve);
1976 kve->kve_private_resident = 0;
1977 obj = entry->object.vm_object;
1979 VM_OBJECT_LOCK(obj);
1980 if (obj->shadow_count == 1)
1981 kve->kve_private_resident =
1982 obj->resident_page_count;
1984 kve->kve_resident = 0;
1985 addr = entry->start;
1986 while (addr < entry->end) {
1987 if (pmap_extract(map->pmap, addr))
1988 kve->kve_resident++;
1992 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
1994 VM_OBJECT_LOCK(tobj);
1996 VM_OBJECT_UNLOCK(lobj);
2000 kve->kve_start = (void*)entry->start;
2001 kve->kve_end = (void*)entry->end;
2002 kve->kve_offset = (off_t)entry->offset;
2004 if (entry->protection & VM_PROT_READ)
2005 kve->kve_protection |= KVME_PROT_READ;
2006 if (entry->protection & VM_PROT_WRITE)
2007 kve->kve_protection |= KVME_PROT_WRITE;
2008 if (entry->protection & VM_PROT_EXECUTE)
2009 kve->kve_protection |= KVME_PROT_EXEC;
2011 if (entry->eflags & MAP_ENTRY_COW)
2012 kve->kve_flags |= KVME_FLAG_COW;
2013 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2014 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2015 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2016 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2018 last_timestamp = map->timestamp;
2019 vm_map_unlock_read(map);
2021 kve->kve_fileid = 0;
2027 switch (lobj->type) {
2029 kve->kve_type = KVME_TYPE_DEFAULT;
2032 kve->kve_type = KVME_TYPE_VNODE;
2037 kve->kve_type = KVME_TYPE_SWAP;
2040 kve->kve_type = KVME_TYPE_DEVICE;
2043 kve->kve_type = KVME_TYPE_PHYS;
2046 kve->kve_type = KVME_TYPE_DEAD;
2049 kve->kve_type = KVME_TYPE_SG;
2052 kve->kve_type = KVME_TYPE_UNKNOWN;
2056 VM_OBJECT_UNLOCK(lobj);
2058 kve->kve_ref_count = obj->ref_count;
2059 kve->kve_shadow_count = obj->shadow_count;
2060 VM_OBJECT_UNLOCK(obj);
2062 vn_fullpath(curthread, vp, &fullpath,
2064 cred = curthread->td_ucred;
2065 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2066 vn_lock(vp, LK_SHARED | LK_RETRY);
2067 if (VOP_GETATTR(vp, &va, cred) == 0) {
2068 kve->kve_fileid = va.va_fileid;
2069 kve->kve_fsid = va.va_fsid;
2072 VFS_UNLOCK_GIANT(vfslocked);
2075 kve->kve_type = KVME_TYPE_NONE;
2076 kve->kve_ref_count = 0;
2077 kve->kve_shadow_count = 0;
2080 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2081 if (freepath != NULL)
2082 free(freepath, M_TEMP);
2084 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2085 vm_map_lock_read(map);
2088 if (last_timestamp != map->timestamp) {
2089 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2093 vm_map_unlock_read(map);
2099 #endif /* COMPAT_FREEBSD7 */
2101 #ifdef KINFO_VMENTRY_SIZE
2102 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2106 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2108 vm_map_entry_t entry, tmp_entry;
2109 unsigned int last_timestamp;
2110 char *fullpath, *freepath;
2111 struct kinfo_vmentry *kve;
2121 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2124 vm = vmspace_acquire_ref(p);
2129 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2131 map = &vm->vm_map; /* XXXRW: More locking required? */
2132 vm_map_lock_read(map);
2133 for (entry = map->header.next; entry != &map->header;
2134 entry = entry->next) {
2135 vm_object_t obj, tobj, lobj;
2137 vm_paddr_t locked_pa;
2138 int vfslocked, mincoreinfo;
2140 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2143 bzero(kve, sizeof(*kve));
2145 kve->kve_private_resident = 0;
2146 obj = entry->object.vm_object;
2148 VM_OBJECT_LOCK(obj);
2149 if (obj->shadow_count == 1)
2150 kve->kve_private_resident =
2151 obj->resident_page_count;
2153 kve->kve_resident = 0;
2154 addr = entry->start;
2155 while (addr < entry->end) {
2157 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2159 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2160 if (mincoreinfo & MINCORE_INCORE)
2161 kve->kve_resident++;
2162 if (mincoreinfo & MINCORE_SUPER)
2163 kve->kve_flags |= KVME_FLAG_SUPER;
2167 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2169 VM_OBJECT_LOCK(tobj);
2171 VM_OBJECT_UNLOCK(lobj);
2175 kve->kve_start = entry->start;
2176 kve->kve_end = entry->end;
2177 kve->kve_offset = entry->offset;
2179 if (entry->protection & VM_PROT_READ)
2180 kve->kve_protection |= KVME_PROT_READ;
2181 if (entry->protection & VM_PROT_WRITE)
2182 kve->kve_protection |= KVME_PROT_WRITE;
2183 if (entry->protection & VM_PROT_EXECUTE)
2184 kve->kve_protection |= KVME_PROT_EXEC;
2186 if (entry->eflags & MAP_ENTRY_COW)
2187 kve->kve_flags |= KVME_FLAG_COW;
2188 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2189 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2190 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2191 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2192 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2193 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2194 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2195 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2197 last_timestamp = map->timestamp;
2198 vm_map_unlock_read(map);
2204 switch (lobj->type) {
2206 kve->kve_type = KVME_TYPE_DEFAULT;
2209 kve->kve_type = KVME_TYPE_VNODE;
2214 kve->kve_type = KVME_TYPE_SWAP;
2217 kve->kve_type = KVME_TYPE_DEVICE;
2220 kve->kve_type = KVME_TYPE_PHYS;
2223 kve->kve_type = KVME_TYPE_DEAD;
2226 kve->kve_type = KVME_TYPE_SG;
2229 kve->kve_type = KVME_TYPE_UNKNOWN;
2233 VM_OBJECT_UNLOCK(lobj);
2235 kve->kve_ref_count = obj->ref_count;
2236 kve->kve_shadow_count = obj->shadow_count;
2237 VM_OBJECT_UNLOCK(obj);
2239 vn_fullpath(curthread, vp, &fullpath,
2241 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2242 cred = curthread->td_ucred;
2243 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2244 vn_lock(vp, LK_SHARED | LK_RETRY);
2245 if (VOP_GETATTR(vp, &va, cred) == 0) {
2246 kve->kve_vn_fileid = va.va_fileid;
2247 kve->kve_vn_fsid = va.va_fsid;
2249 MAKEIMODE(va.va_type, va.va_mode);
2250 kve->kve_vn_size = va.va_size;
2251 kve->kve_vn_rdev = va.va_rdev;
2252 kve->kve_status = KF_ATTR_VALID;
2255 VFS_UNLOCK_GIANT(vfslocked);
2258 kve->kve_type = KVME_TYPE_NONE;
2259 kve->kve_ref_count = 0;
2260 kve->kve_shadow_count = 0;
2263 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2264 if (freepath != NULL)
2265 free(freepath, M_TEMP);
2267 /* Pack record size down */
2268 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2269 strlen(kve->kve_path) + 1;
2270 kve->kve_structsize = roundup(kve->kve_structsize,
2272 error = SYSCTL_OUT(req, kve, kve->kve_structsize);
2273 vm_map_lock_read(map);
2276 if (last_timestamp != map->timestamp) {
2277 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2281 vm_map_unlock_read(map);
2288 #if defined(STACK) || defined(DDB)
2290 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2292 struct kinfo_kstack *kkstp;
2293 int error, i, *name, numthreads;
2294 lwpid_t *lwpidarray;
2301 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2305 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2306 st = stack_create();
2312 if (numthreads < p->p_numthreads) {
2313 if (lwpidarray != NULL) {
2314 free(lwpidarray, M_TEMP);
2317 numthreads = p->p_numthreads;
2319 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2327 * XXXRW: During the below loop, execve(2) and countless other sorts
2328 * of changes could have taken place. Should we check to see if the
2329 * vmspace has been replaced, or the like, in order to prevent
2330 * giving a snapshot that spans, say, execve(2), with some threads
2331 * before and some after? Among other things, the credentials could
2332 * have changed, in which case the right to extract debug info might
2333 * no longer be assured.
2335 FOREACH_THREAD_IN_PROC(p, td) {
2336 KASSERT(i < numthreads,
2337 ("sysctl_kern_proc_kstack: numthreads"));
2338 lwpidarray[i] = td->td_tid;
2342 for (i = 0; i < numthreads; i++) {
2343 td = thread_find(p, lwpidarray[i]);
2347 bzero(kkstp, sizeof(*kkstp));
2348 (void)sbuf_new(&sb, kkstp->kkst_trace,
2349 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2351 kkstp->kkst_tid = td->td_tid;
2352 if (TD_IS_SWAPPED(td))
2353 kkstp->kkst_state = KKST_STATE_SWAPPED;
2354 else if (TD_IS_RUNNING(td))
2355 kkstp->kkst_state = KKST_STATE_RUNNING;
2357 kkstp->kkst_state = KKST_STATE_STACKOK;
2358 stack_save_td(st, td);
2362 stack_sbuf_print(&sb, st);
2365 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2372 if (lwpidarray != NULL)
2373 free(lwpidarray, M_TEMP);
2375 free(kkstp, M_TEMP);
2381 * This sysctl allows a process to retrieve the full list of groups from
2382 * itself or another process.
2385 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2387 pid_t *pidp = (pid_t *)arg1;
2388 unsigned int arglen = arg2;
2395 if (*pidp == -1) { /* -1 means this process */
2396 p = req->td->td_proc;
2398 error = pget(*pidp, PGET_CANSEE, &p);
2403 cred = crhold(p->p_ucred);
2407 error = SYSCTL_OUT(req, cred->cr_groups,
2408 cred->cr_ngroups * sizeof(gid_t));
2414 * This sysctl allows a process to retrieve or/and set the resource limit for
2418 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2420 int *name = (int *)arg1;
2421 u_int namelen = arg2;
2430 which = (u_int)name[1];
2431 if (which >= RLIM_NLIMITS)
2434 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2437 flags = PGET_HOLD | PGET_NOTWEXIT;
2438 if (req->newptr != NULL)
2439 flags |= PGET_CANDEBUG;
2441 flags |= PGET_CANSEE;
2442 error = pget((pid_t)name[0], flags, &p);
2449 if (req->oldptr != NULL) {
2451 lim_rlimit(p, which, &rlim);
2454 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2461 if (req->newptr != NULL) {
2462 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2464 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2473 * This sysctl allows a process to retrieve ps_strings structure location of
2477 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2479 int *name = (int *)arg1;
2480 u_int namelen = arg2;
2482 vm_offset_t ps_strings;
2484 #ifdef COMPAT_FREEBSD32
2485 uint32_t ps_strings32;
2491 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2494 #ifdef COMPAT_FREEBSD32
2495 if ((req->flags & SCTL_MASK32) != 0) {
2497 * We return 0 if the 32 bit emulation request is for a 64 bit
2500 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2501 PTROUT(p->p_sysent->sv_psstrings) : 0;
2503 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2507 ps_strings = p->p_sysent->sv_psstrings;
2509 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2514 * This sysctl allows a process to retrieve umask of another process.
2517 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2519 int *name = (int *)arg1;
2520 u_int namelen = arg2;
2528 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2532 FILEDESC_SLOCK(p->p_fd);
2533 fd_cmask = p->p_fd->fd_cmask;
2534 FILEDESC_SUNLOCK(p->p_fd);
2536 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2541 * This sysctl allows a process to set and retrieve binary osreldate of
2545 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2547 int *name = (int *)arg1;
2548 u_int namelen = arg2;
2550 int flags, error, osrel;
2555 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2558 flags = PGET_HOLD | PGET_NOTWEXIT;
2559 if (req->newptr != NULL)
2560 flags |= PGET_CANDEBUG;
2562 flags |= PGET_CANSEE;
2563 error = pget((pid_t)name[0], flags, &p);
2567 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2571 if (req->newptr != NULL) {
2572 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2586 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2588 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2589 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2590 "Return entire process table");
2592 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2593 sysctl_kern_proc, "Process table");
2595 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2596 sysctl_kern_proc, "Process table");
2598 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2599 sysctl_kern_proc, "Process table");
2601 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2602 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2604 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2605 sysctl_kern_proc, "Process table");
2607 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2608 sysctl_kern_proc, "Process table");
2610 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2611 sysctl_kern_proc, "Process table");
2613 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2614 sysctl_kern_proc, "Process table");
2616 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2617 sysctl_kern_proc, "Return process table, no threads");
2619 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2620 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2621 sysctl_kern_proc_args, "Process argument list");
2623 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2624 sysctl_kern_proc_env, "Process environment");
2626 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2627 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2629 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2630 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2632 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2633 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2634 "Process syscall vector name (ABI type)");
2636 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2637 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2639 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2640 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2642 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2643 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2645 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2646 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2648 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2649 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2651 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2652 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2654 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2655 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2657 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2658 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2660 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2661 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2662 "Return process table, no threads");
2664 #ifdef COMPAT_FREEBSD7
2665 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2666 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2669 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2670 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2672 #if defined(STACK) || defined(DDB)
2673 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2674 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2677 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2678 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2680 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2681 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2682 "Process resource limits");
2684 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2685 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2686 "Process ps_strings location");
2688 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2689 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2691 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2692 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2693 "Process binary osreldate");