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
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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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_param.h>
81 #include <vm/vm_extern.h>
83 #include <vm/vm_map.h>
84 #include <vm/vm_object.h>
85 #include <vm/vm_page.h>
88 #ifdef COMPAT_FREEBSD32
89 #include <compat/freebsd32/freebsd32.h>
90 #include <compat/freebsd32/freebsd32_util.h>
93 SDT_PROVIDER_DEFINE(proc);
94 SDT_PROBE_DEFINE4(proc, kernel, ctor, entry, "struct proc *", "int",
96 SDT_PROBE_DEFINE4(proc, kernel, ctor, return, "struct proc *", "int",
98 SDT_PROBE_DEFINE4(proc, kernel, dtor, entry, "struct proc *", "int",
99 "void *", "struct thread *");
100 SDT_PROBE_DEFINE3(proc, kernel, dtor, return, "struct proc *", "int",
102 SDT_PROBE_DEFINE3(proc, kernel, init, entry, "struct proc *", "int",
104 SDT_PROBE_DEFINE3(proc, kernel, init, return, "struct proc *", "int",
107 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
108 MALLOC_DEFINE(M_SESSION, "session", "session header");
109 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
110 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
112 static void doenterpgrp(struct proc *, struct pgrp *);
113 static void orphanpg(struct pgrp *pg);
114 static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp);
115 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
116 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp,
118 static void pgadjustjobc(struct pgrp *pgrp, int entering);
119 static void pgdelete(struct pgrp *);
120 static int proc_ctor(void *mem, int size, void *arg, int flags);
121 static void proc_dtor(void *mem, int size, void *arg);
122 static int proc_init(void *mem, int size, int flags);
123 static void proc_fini(void *mem, int size);
124 static void pargs_free(struct pargs *pa);
125 static struct proc *zpfind_locked(pid_t pid);
128 * Other process lists
130 struct pidhashhead *pidhashtbl;
132 struct pgrphashhead *pgrphashtbl;
134 struct proclist allproc;
135 struct proclist zombproc;
136 struct sx allproc_lock;
137 struct sx proctree_lock;
138 struct mtx ppeers_lock;
139 uma_zone_t proc_zone;
141 int kstack_pages = KSTACK_PAGES;
142 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0,
143 "Kernel stack size in pages");
144 static int vmmap_skip_res_cnt = 0;
145 SYSCTL_INT(_kern, OID_AUTO, proc_vmmap_skip_resident_count, CTLFLAG_RW,
146 &vmmap_skip_res_cnt, 0,
147 "Skip calculation of the pages resident count in kern.proc.vmmap");
149 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
150 #ifdef COMPAT_FREEBSD32
151 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
155 * Initialize global process hashing structures.
161 sx_init(&allproc_lock, "allproc");
162 sx_init(&proctree_lock, "proctree");
163 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
165 LIST_INIT(&zombproc);
166 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
167 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
168 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
169 proc_ctor, proc_dtor, proc_init, proc_fini,
170 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
175 * Prepare a proc for use.
178 proc_ctor(void *mem, int size, void *arg, int flags)
182 p = (struct proc *)mem;
183 SDT_PROBE4(proc, kernel, ctor , entry, p, size, arg, flags);
184 EVENTHANDLER_INVOKE(process_ctor, p);
185 SDT_PROBE4(proc, kernel, ctor , return, p, size, arg, flags);
190 * Reclaim a proc after use.
193 proc_dtor(void *mem, int size, void *arg)
198 /* INVARIANTS checks go here */
199 p = (struct proc *)mem;
200 td = FIRST_THREAD_IN_PROC(p);
201 SDT_PROBE4(proc, kernel, dtor, entry, p, size, arg, td);
204 KASSERT((p->p_numthreads == 1),
205 ("bad number of threads in exiting process"));
206 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr"));
208 /* Free all OSD associated to this thread. */
211 EVENTHANDLER_INVOKE(process_dtor, p);
212 if (p->p_ksi != NULL)
213 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue"));
214 SDT_PROBE3(proc, kernel, dtor, return, p, size, arg);
218 * Initialize type-stable parts of a proc (when newly created).
221 proc_init(void *mem, int size, int flags)
225 p = (struct proc *)mem;
226 SDT_PROBE3(proc, kernel, init, entry, p, size, flags);
227 p->p_sched = (struct p_sched *)&p[1];
228 bzero(&p->p_mtx, sizeof(struct mtx));
229 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
230 mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE);
231 cv_init(&p->p_pwait, "ppwait");
232 cv_init(&p->p_dbgwait, "dbgwait");
233 TAILQ_INIT(&p->p_threads); /* all threads in proc */
234 EVENTHANDLER_INVOKE(process_init, p);
235 p->p_stats = pstats_alloc();
236 SDT_PROBE3(proc, kernel, init, return, p, size, flags);
241 * UMA should ensure that this function is never called.
242 * Freeing a proc structure would violate type stability.
245 proc_fini(void *mem, int size)
250 p = (struct proc *)mem;
251 EVENTHANDLER_INVOKE(process_fini, p);
252 pstats_free(p->p_stats);
253 thread_free(FIRST_THREAD_IN_PROC(p));
254 mtx_destroy(&p->p_mtx);
255 if (p->p_ksi != NULL)
256 ksiginfo_free(p->p_ksi);
258 panic("proc reclaimed");
263 * Is p an inferior of the current process?
266 inferior(struct proc *p)
269 sx_assert(&proctree_lock, SX_LOCKED);
270 PROC_LOCK_ASSERT(p, MA_OWNED);
271 for (; p != curproc; p = proc_realparent(p)) {
279 pfind_locked(pid_t pid)
283 sx_assert(&allproc_lock, SX_LOCKED);
284 LIST_FOREACH(p, PIDHASH(pid), p_hash) {
285 if (p->p_pid == pid) {
287 if (p->p_state == PRS_NEW) {
298 * Locate a process by number; return only "live" processes -- i.e., neither
299 * zombies nor newly born but incompletely initialized processes. By not
300 * returning processes in the PRS_NEW state, we allow callers to avoid
301 * testing for that condition to avoid dereferencing p_ucred, et al.
308 sx_slock(&allproc_lock);
309 p = pfind_locked(pid);
310 sx_sunlock(&allproc_lock);
315 pfind_tid_locked(pid_t tid)
320 sx_assert(&allproc_lock, SX_LOCKED);
321 FOREACH_PROC_IN_SYSTEM(p) {
323 if (p->p_state == PRS_NEW) {
327 FOREACH_THREAD_IN_PROC(p, td) {
328 if (td->td_tid == tid)
338 * Locate a process group by number.
339 * The caller must hold proctree_lock.
345 register struct pgrp *pgrp;
347 sx_assert(&proctree_lock, SX_LOCKED);
349 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
350 if (pgrp->pg_id == pgid) {
359 * Locate process and do additional manipulations, depending on flags.
362 pget(pid_t pid, int flags, struct proc **pp)
367 sx_slock(&allproc_lock);
368 if (pid <= PID_MAX) {
369 p = pfind_locked(pid);
370 if (p == NULL && (flags & PGET_NOTWEXIT) == 0)
371 p = zpfind_locked(pid);
372 } else if ((flags & PGET_NOTID) == 0) {
373 p = pfind_tid_locked(pid);
377 sx_sunlock(&allproc_lock);
380 if ((flags & PGET_CANSEE) != 0) {
381 error = p_cansee(curthread, p);
385 if ((flags & PGET_CANDEBUG) != 0) {
386 error = p_candebug(curthread, p);
390 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
394 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
398 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
400 * XXXRW: Not clear ESRCH is the right error during proc
406 if ((flags & PGET_HOLD) != 0) {
418 * Create a new process group.
419 * pgid must be equal to the pid of p.
420 * Begin a new session if required.
423 enterpgrp(p, pgid, pgrp, sess)
424 register struct proc *p;
427 struct session *sess;
430 sx_assert(&proctree_lock, SX_XLOCKED);
432 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
433 KASSERT(p->p_pid == pgid,
434 ("enterpgrp: new pgrp and pid != pgid"));
435 KASSERT(pgfind(pgid) == NULL,
436 ("enterpgrp: pgrp with pgid exists"));
437 KASSERT(!SESS_LEADER(p),
438 ("enterpgrp: session leader attempted setpgrp"));
440 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
446 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
448 p->p_flag &= ~P_CONTROLT;
452 sess->s_sid = p->p_pid;
453 refcount_init(&sess->s_count, 1);
454 sess->s_ttyvp = NULL;
455 sess->s_ttydp = NULL;
457 bcopy(p->p_session->s_login, sess->s_login,
458 sizeof(sess->s_login));
459 pgrp->pg_session = sess;
460 KASSERT(p == curproc,
461 ("enterpgrp: mksession and p != curproc"));
463 pgrp->pg_session = p->p_session;
464 sess_hold(pgrp->pg_session);
468 LIST_INIT(&pgrp->pg_members);
471 * As we have an exclusive lock of proctree_lock,
472 * this should not deadlock.
474 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
476 SLIST_INIT(&pgrp->pg_sigiolst);
479 doenterpgrp(p, pgrp);
485 * Move p to an existing process group
488 enterthispgrp(p, pgrp)
489 register struct proc *p;
493 sx_assert(&proctree_lock, SX_XLOCKED);
494 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
495 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
496 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
497 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
498 KASSERT(pgrp->pg_session == p->p_session,
499 ("%s: pgrp's session %p, p->p_session %p.\n",
503 KASSERT(pgrp != p->p_pgrp,
504 ("%s: p belongs to pgrp.", __func__));
506 doenterpgrp(p, pgrp);
512 * Move p to a process group
519 struct pgrp *savepgrp;
521 sx_assert(&proctree_lock, SX_XLOCKED);
522 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
523 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
524 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
525 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
527 savepgrp = p->p_pgrp;
530 * Adjust eligibility of affected pgrps to participate in job control.
531 * Increment eligibility counts before decrementing, otherwise we
532 * could reach 0 spuriously during the first call.
535 fixjobc(p, p->p_pgrp, 0);
540 LIST_REMOVE(p, p_pglist);
543 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
544 PGRP_UNLOCK(savepgrp);
546 if (LIST_EMPTY(&savepgrp->pg_members))
551 * remove process from process group
555 register struct proc *p;
557 struct pgrp *savepgrp;
559 sx_assert(&proctree_lock, SX_XLOCKED);
560 savepgrp = p->p_pgrp;
563 LIST_REMOVE(p, p_pglist);
566 PGRP_UNLOCK(savepgrp);
567 if (LIST_EMPTY(&savepgrp->pg_members))
573 * delete a process group
577 register struct pgrp *pgrp;
579 struct session *savesess;
582 sx_assert(&proctree_lock, SX_XLOCKED);
583 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
584 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
587 * Reset any sigio structures pointing to us as a result of
588 * F_SETOWN with our pgid.
590 funsetownlst(&pgrp->pg_sigiolst);
593 tp = pgrp->pg_session->s_ttyp;
594 LIST_REMOVE(pgrp, pg_hash);
595 savesess = pgrp->pg_session;
598 /* Remove the reference to the pgrp before deallocating it. */
601 tty_rel_pgrp(tp, pgrp);
604 mtx_destroy(&pgrp->pg_mtx);
606 sess_release(savesess);
610 pgadjustjobc(pgrp, entering)
620 if (pgrp->pg_jobc == 0)
627 * Adjust pgrp jobc counters when specified process changes process group.
628 * We count the number of processes in each process group that "qualify"
629 * the group for terminal job control (those with a parent in a different
630 * process group of the same session). If that count reaches zero, the
631 * process group becomes orphaned. Check both the specified process'
632 * process group and that of its children.
633 * entering == 0 => p is leaving specified group.
634 * entering == 1 => p is entering specified group.
637 fixjobc(p, pgrp, entering)
638 register struct proc *p;
639 register struct pgrp *pgrp;
642 register struct pgrp *hispgrp;
643 register struct session *mysession;
645 sx_assert(&proctree_lock, SX_LOCKED);
646 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
647 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
648 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
651 * Check p's parent to see whether p qualifies its own process
652 * group; if so, adjust count for p's process group.
654 mysession = pgrp->pg_session;
655 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
656 hispgrp->pg_session == mysession)
657 pgadjustjobc(pgrp, entering);
660 * Check this process' children to see whether they qualify
661 * their process groups; if so, adjust counts for children's
664 LIST_FOREACH(p, &p->p_children, p_sibling) {
666 if (hispgrp == pgrp ||
667 hispgrp->pg_session != mysession)
670 if (p->p_state == PRS_ZOMBIE) {
675 pgadjustjobc(hispgrp, entering);
680 * A process group has become orphaned;
681 * if there are any stopped processes in the group,
682 * hang-up all process in that group.
688 register struct proc *p;
690 PGRP_LOCK_ASSERT(pg, MA_OWNED);
692 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
694 if (P_SHOULDSTOP(p) == P_STOPPED_SIG) {
696 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
698 kern_psignal(p, SIGHUP);
699 kern_psignal(p, SIGCONT);
709 sess_hold(struct session *s)
712 refcount_acquire(&s->s_count);
716 sess_release(struct session *s)
719 if (refcount_release(&s->s_count)) {
720 if (s->s_ttyp != NULL) {
722 tty_rel_sess(s->s_ttyp, s);
724 mtx_destroy(&s->s_mtx);
733 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
735 register struct pgrp *pgrp;
736 register struct proc *p;
739 for (i = 0; i <= pgrphash; i++) {
740 if (!LIST_EMPTY(&pgrphashtbl[i])) {
741 printf("\tindx %d\n", i);
742 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
744 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
745 (void *)pgrp, (long)pgrp->pg_id,
746 (void *)pgrp->pg_session,
747 pgrp->pg_session->s_count,
748 (void *)LIST_FIRST(&pgrp->pg_members));
749 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
750 printf("\t\tpid %ld addr %p pgrp %p\n",
751 (long)p->p_pid, (void *)p,
761 * Calculate the kinfo_proc members which contain process-wide
763 * Must be called with the target process locked.
766 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
770 PROC_LOCK_ASSERT(p, MA_OWNED);
774 FOREACH_THREAD_IN_PROC(p, td) {
776 kp->ki_pctcpu += sched_pctcpu(td);
777 kp->ki_estcpu += td->td_estcpu;
783 * Clear kinfo_proc and fill in any information that is common
784 * to all threads in the process.
785 * Must be called with the target process locked.
788 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
796 PROC_LOCK_ASSERT(p, MA_OWNED);
797 bzero(kp, sizeof(*kp));
799 kp->ki_structsize = sizeof(*kp);
801 kp->ki_addr =/* p->p_addr; */0; /* XXX */
802 kp->ki_args = p->p_args;
803 kp->ki_textvp = p->p_textvp;
805 kp->ki_tracep = p->p_tracevp;
806 kp->ki_traceflag = p->p_traceflag;
809 kp->ki_vmspace = p->p_vmspace;
810 kp->ki_flag = p->p_flag;
811 kp->ki_flag2 = p->p_flag2;
814 kp->ki_uid = cred->cr_uid;
815 kp->ki_ruid = cred->cr_ruid;
816 kp->ki_svuid = cred->cr_svuid;
818 if (cred->cr_flags & CRED_FLAG_CAPMODE)
819 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
820 /* XXX bde doesn't like KI_NGROUPS */
821 if (cred->cr_ngroups > KI_NGROUPS) {
822 kp->ki_ngroups = KI_NGROUPS;
823 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
825 kp->ki_ngroups = cred->cr_ngroups;
826 bcopy(cred->cr_groups, kp->ki_groups,
827 kp->ki_ngroups * sizeof(gid_t));
828 kp->ki_rgid = cred->cr_rgid;
829 kp->ki_svgid = cred->cr_svgid;
830 /* If jailed(cred), emulate the old P_JAILED flag. */
832 kp->ki_flag |= P_JAILED;
833 /* If inside the jail, use 0 as a jail ID. */
834 if (cred->cr_prison != curthread->td_ucred->cr_prison)
835 kp->ki_jid = cred->cr_prison->pr_id;
837 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
838 sizeof(kp->ki_loginclass));
842 mtx_lock(&ps->ps_mtx);
843 kp->ki_sigignore = ps->ps_sigignore;
844 kp->ki_sigcatch = ps->ps_sigcatch;
845 mtx_unlock(&ps->ps_mtx);
847 if (p->p_state != PRS_NEW &&
848 p->p_state != PRS_ZOMBIE &&
849 p->p_vmspace != NULL) {
850 struct vmspace *vm = p->p_vmspace;
852 kp->ki_size = vm->vm_map.size;
853 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
854 FOREACH_THREAD_IN_PROC(p, td0) {
855 if (!TD_IS_SWAPPED(td0))
856 kp->ki_rssize += td0->td_kstack_pages;
858 kp->ki_swrss = vm->vm_swrss;
859 kp->ki_tsize = vm->vm_tsize;
860 kp->ki_dsize = vm->vm_dsize;
861 kp->ki_ssize = vm->vm_ssize;
862 } else if (p->p_state == PRS_ZOMBIE)
864 if (kp->ki_flag & P_INMEM)
865 kp->ki_sflag = PS_INMEM;
868 /* Calculate legacy swtime as seconds since 'swtick'. */
869 kp->ki_swtime = (ticks - p->p_swtick) / hz;
870 kp->ki_pid = p->p_pid;
871 kp->ki_nice = p->p_nice;
872 kp->ki_fibnum = p->p_fibnum;
873 kp->ki_start = p->p_stats->p_start;
874 timevaladd(&kp->ki_start, &boottime);
876 rufetch(p, &kp->ki_rusage);
877 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
878 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
880 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
881 /* Some callers want child times in a single value. */
882 kp->ki_childtime = kp->ki_childstime;
883 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
885 FOREACH_THREAD_IN_PROC(p, td0)
886 kp->ki_cow += td0->td_cow;
890 kp->ki_pgid = p->p_pgrp->pg_id;
891 kp->ki_jobc = p->p_pgrp->pg_jobc;
892 sp = p->p_pgrp->pg_session;
895 kp->ki_sid = sp->s_sid;
897 strlcpy(kp->ki_login, sp->s_login,
898 sizeof(kp->ki_login));
900 kp->ki_kiflag |= KI_CTTY;
902 kp->ki_kiflag |= KI_SLEADER;
903 /* XXX proctree_lock */
908 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
909 kp->ki_tdev = tty_udev(tp);
910 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
912 kp->ki_tsid = tp->t_session->s_sid;
915 if (p->p_comm[0] != '\0')
916 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
917 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
918 p->p_sysent->sv_name[0] != '\0')
919 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
920 kp->ki_siglist = p->p_siglist;
921 kp->ki_xstat = p->p_xstat;
922 kp->ki_acflag = p->p_acflag;
923 kp->ki_lock = p->p_lock;
925 kp->ki_ppid = p->p_pptr->p_pid;
929 * Fill in information that is thread specific. Must be called with
930 * target process locked. If 'preferthread' is set, overwrite certain
931 * process-related fields that are maintained for both threads and
935 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
941 PROC_LOCK_ASSERT(p, MA_OWNED);
946 if (td->td_wmesg != NULL)
947 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
949 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
950 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
951 if (TD_ON_LOCK(td)) {
952 kp->ki_kiflag |= KI_LOCKBLOCK;
953 strlcpy(kp->ki_lockname, td->td_lockname,
954 sizeof(kp->ki_lockname));
956 kp->ki_kiflag &= ~KI_LOCKBLOCK;
957 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
960 if (p->p_state == PRS_NORMAL) { /* approximate. */
961 if (TD_ON_RUNQ(td) ||
965 } else if (P_SHOULDSTOP(p)) {
967 } else if (TD_IS_SLEEPING(td)) {
968 kp->ki_stat = SSLEEP;
969 } else if (TD_ON_LOCK(td)) {
974 } else if (p->p_state == PRS_ZOMBIE) {
980 /* Things in the thread */
981 kp->ki_wchan = td->td_wchan;
982 kp->ki_pri.pri_level = td->td_priority;
983 kp->ki_pri.pri_native = td->td_base_pri;
984 kp->ki_lastcpu = td->td_lastcpu;
985 kp->ki_oncpu = td->td_oncpu;
986 kp->ki_tdflags = td->td_flags;
987 kp->ki_tid = td->td_tid;
988 kp->ki_numthreads = p->p_numthreads;
989 kp->ki_pcb = td->td_pcb;
990 kp->ki_kstack = (void *)td->td_kstack;
991 kp->ki_slptime = (ticks - td->td_slptick) / hz;
992 kp->ki_pri.pri_class = td->td_pri_class;
993 kp->ki_pri.pri_user = td->td_user_pri;
996 rufetchtd(td, &kp->ki_rusage);
997 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
998 kp->ki_pctcpu = sched_pctcpu(td);
999 kp->ki_estcpu = td->td_estcpu;
1000 kp->ki_cow = td->td_cow;
1003 /* We can't get this anymore but ps etc never used it anyway. */
1007 kp->ki_siglist = td->td_siglist;
1008 kp->ki_sigmask = td->td_sigmask;
1015 * Fill in a kinfo_proc structure for the specified process.
1016 * Must be called with the target process locked.
1019 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1022 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1024 fill_kinfo_proc_only(p, kp);
1025 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1026 fill_kinfo_aggregate(p, kp);
1033 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1037 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1040 pstats_fork(struct pstats *src, struct pstats *dst)
1043 bzero(&dst->pstat_startzero,
1044 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1045 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1046 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1050 pstats_free(struct pstats *ps)
1053 free(ps, M_SUBPROC);
1056 static struct proc *
1057 zpfind_locked(pid_t pid)
1061 sx_assert(&allproc_lock, SX_LOCKED);
1062 LIST_FOREACH(p, &zombproc, p_list) {
1063 if (p->p_pid == pid) {
1072 * Locate a zombie process by number
1079 sx_slock(&allproc_lock);
1080 p = zpfind_locked(pid);
1081 sx_sunlock(&allproc_lock);
1085 #ifdef COMPAT_FREEBSD32
1088 * This function is typically used to copy out the kernel address, so
1089 * it can be replaced by assignment of zero.
1091 static inline uint32_t
1092 ptr32_trim(void *ptr)
1096 uptr = (uintptr_t)ptr;
1097 return ((uptr > UINT_MAX) ? 0 : uptr);
1100 #define PTRTRIM_CP(src,dst,fld) \
1101 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1104 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1108 bzero(ki32, sizeof(struct kinfo_proc32));
1109 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1110 CP(*ki, *ki32, ki_layout);
1111 PTRTRIM_CP(*ki, *ki32, ki_args);
1112 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1113 PTRTRIM_CP(*ki, *ki32, ki_addr);
1114 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1115 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1116 PTRTRIM_CP(*ki, *ki32, ki_fd);
1117 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1118 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1119 CP(*ki, *ki32, ki_pid);
1120 CP(*ki, *ki32, ki_ppid);
1121 CP(*ki, *ki32, ki_pgid);
1122 CP(*ki, *ki32, ki_tpgid);
1123 CP(*ki, *ki32, ki_sid);
1124 CP(*ki, *ki32, ki_tsid);
1125 CP(*ki, *ki32, ki_jobc);
1126 CP(*ki, *ki32, ki_tdev);
1127 CP(*ki, *ki32, ki_siglist);
1128 CP(*ki, *ki32, ki_sigmask);
1129 CP(*ki, *ki32, ki_sigignore);
1130 CP(*ki, *ki32, ki_sigcatch);
1131 CP(*ki, *ki32, ki_uid);
1132 CP(*ki, *ki32, ki_ruid);
1133 CP(*ki, *ki32, ki_svuid);
1134 CP(*ki, *ki32, ki_rgid);
1135 CP(*ki, *ki32, ki_svgid);
1136 CP(*ki, *ki32, ki_ngroups);
1137 for (i = 0; i < KI_NGROUPS; i++)
1138 CP(*ki, *ki32, ki_groups[i]);
1139 CP(*ki, *ki32, ki_size);
1140 CP(*ki, *ki32, ki_rssize);
1141 CP(*ki, *ki32, ki_swrss);
1142 CP(*ki, *ki32, ki_tsize);
1143 CP(*ki, *ki32, ki_dsize);
1144 CP(*ki, *ki32, ki_ssize);
1145 CP(*ki, *ki32, ki_xstat);
1146 CP(*ki, *ki32, ki_acflag);
1147 CP(*ki, *ki32, ki_pctcpu);
1148 CP(*ki, *ki32, ki_estcpu);
1149 CP(*ki, *ki32, ki_slptime);
1150 CP(*ki, *ki32, ki_swtime);
1151 CP(*ki, *ki32, ki_cow);
1152 CP(*ki, *ki32, ki_runtime);
1153 TV_CP(*ki, *ki32, ki_start);
1154 TV_CP(*ki, *ki32, ki_childtime);
1155 CP(*ki, *ki32, ki_flag);
1156 CP(*ki, *ki32, ki_kiflag);
1157 CP(*ki, *ki32, ki_traceflag);
1158 CP(*ki, *ki32, ki_stat);
1159 CP(*ki, *ki32, ki_nice);
1160 CP(*ki, *ki32, ki_lock);
1161 CP(*ki, *ki32, ki_rqindex);
1162 CP(*ki, *ki32, ki_oncpu);
1163 CP(*ki, *ki32, ki_lastcpu);
1164 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1165 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1166 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1167 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1168 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1169 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1170 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1171 CP(*ki, *ki32, ki_flag2);
1172 CP(*ki, *ki32, ki_fibnum);
1173 CP(*ki, *ki32, ki_cr_flags);
1174 CP(*ki, *ki32, ki_jid);
1175 CP(*ki, *ki32, ki_numthreads);
1176 CP(*ki, *ki32, ki_tid);
1177 CP(*ki, *ki32, ki_pri);
1178 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1179 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1180 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1181 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1182 PTRTRIM_CP(*ki, *ki32, ki_udata);
1183 CP(*ki, *ki32, ki_sflag);
1184 CP(*ki, *ki32, ki_tdflags);
1189 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1192 struct kinfo_proc ki;
1193 #ifdef COMPAT_FREEBSD32
1194 struct kinfo_proc32 ki32;
1198 PROC_LOCK_ASSERT(p, MA_OWNED);
1199 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1202 fill_kinfo_proc(p, &ki);
1203 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1204 #ifdef COMPAT_FREEBSD32
1205 if ((flags & KERN_PROC_MASK32) != 0) {
1206 freebsd32_kinfo_proc_out(&ki, &ki32);
1207 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1210 error = sbuf_bcat(sb, &ki, sizeof(ki));
1212 FOREACH_THREAD_IN_PROC(p, td) {
1213 fill_kinfo_thread(td, &ki, 1);
1214 #ifdef COMPAT_FREEBSD32
1215 if ((flags & KERN_PROC_MASK32) != 0) {
1216 freebsd32_kinfo_proc_out(&ki, &ki32);
1217 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1220 error = sbuf_bcat(sb, &ki, sizeof(ki));
1230 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1234 struct kinfo_proc ki;
1240 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1241 error = kern_proc_out(p, &sb, flags);
1242 error2 = sbuf_finish(&sb);
1246 else if (error2 != 0)
1266 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1268 int *name = (int *)arg1;
1269 u_int namelen = arg2;
1271 int flags, doingzomb, oid_number;
1274 oid_number = oidp->oid_number;
1275 if (oid_number != KERN_PROC_ALL &&
1276 (oid_number & KERN_PROC_INC_THREAD) == 0)
1277 flags = KERN_PROC_NOTHREADS;
1280 oid_number &= ~KERN_PROC_INC_THREAD;
1282 #ifdef COMPAT_FREEBSD32
1283 if (req->flags & SCTL_MASK32)
1284 flags |= KERN_PROC_MASK32;
1286 if (oid_number == KERN_PROC_PID) {
1289 error = sysctl_wire_old_buffer(req, 0);
1292 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1295 error = sysctl_out_proc(p, req, flags, 0);
1299 switch (oid_number) {
1304 case KERN_PROC_PROC:
1305 if (namelen != 0 && namelen != 1)
1315 /* overestimate by 5 procs */
1316 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1320 error = sysctl_wire_old_buffer(req, 0);
1323 sx_slock(&allproc_lock);
1324 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1326 p = LIST_FIRST(&allproc);
1328 p = LIST_FIRST(&zombproc);
1329 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1331 * Skip embryonic processes.
1334 if (p->p_state == PRS_NEW) {
1338 KASSERT(p->p_ucred != NULL,
1339 ("process credential is NULL for non-NEW proc"));
1341 * Show a user only appropriate processes.
1343 if (p_cansee(curthread, p)) {
1348 * TODO - make more efficient (see notes below).
1351 switch (oid_number) {
1354 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1360 case KERN_PROC_PGRP:
1361 /* could do this by traversing pgrp */
1362 if (p->p_pgrp == NULL ||
1363 p->p_pgrp->pg_id != (pid_t)name[0]) {
1369 case KERN_PROC_RGID:
1370 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1376 case KERN_PROC_SESSION:
1377 if (p->p_session == NULL ||
1378 p->p_session->s_sid != (pid_t)name[0]) {
1385 if ((p->p_flag & P_CONTROLT) == 0 ||
1386 p->p_session == NULL) {
1390 /* XXX proctree_lock */
1391 SESS_LOCK(p->p_session);
1392 if (p->p_session->s_ttyp == NULL ||
1393 tty_udev(p->p_session->s_ttyp) !=
1395 SESS_UNLOCK(p->p_session);
1399 SESS_UNLOCK(p->p_session);
1403 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1409 case KERN_PROC_RUID:
1410 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1416 case KERN_PROC_PROC:
1424 error = sysctl_out_proc(p, req, flags, doingzomb);
1426 sx_sunlock(&allproc_lock);
1431 sx_sunlock(&allproc_lock);
1436 pargs_alloc(int len)
1440 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1442 refcount_init(&pa->ar_ref, 1);
1443 pa->ar_length = len;
1448 pargs_free(struct pargs *pa)
1455 pargs_hold(struct pargs *pa)
1460 refcount_acquire(&pa->ar_ref);
1464 pargs_drop(struct pargs *pa)
1469 if (refcount_release(&pa->ar_ref))
1474 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1480 iov.iov_base = (caddr_t)buf;
1484 uio.uio_offset = offset;
1485 uio.uio_resid = (ssize_t)len;
1486 uio.uio_segflg = UIO_SYSSPACE;
1487 uio.uio_rw = UIO_READ;
1490 return (proc_rwmem(p, &uio));
1494 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1500 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1502 * Reading the chunk may validly return EFAULT if the string is shorter
1503 * than the chunk and is aligned at the end of the page, assuming the
1504 * next page is not mapped. So if EFAULT is returned do a fallback to
1505 * one byte read loop.
1507 if (error == EFAULT) {
1508 for (i = 0; i < len; i++, buf++, sptr++) {
1509 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1520 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1522 enum proc_vector_type {
1528 #ifdef COMPAT_FREEBSD32
1530 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1531 size_t *vsizep, enum proc_vector_type type)
1533 struct freebsd32_ps_strings pss;
1535 vm_offset_t vptr, ptr;
1536 uint32_t *proc_vector32;
1541 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1547 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1548 vsize = pss.ps_nargvstr;
1549 if (vsize > ARG_MAX)
1551 size = vsize * sizeof(int32_t);
1554 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1555 vsize = pss.ps_nenvstr;
1556 if (vsize > ARG_MAX)
1558 size = vsize * sizeof(int32_t);
1561 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1562 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1565 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1566 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1569 if (aux.a_type == AT_NULL)
1573 if (aux.a_type != AT_NULL)
1576 size = vsize * sizeof(aux);
1579 KASSERT(0, ("Wrong proc vector type: %d", type));
1582 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1583 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1586 if (type == PROC_AUX) {
1587 *proc_vectorp = (char **)proc_vector32;
1591 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1592 for (i = 0; i < (int)vsize; i++)
1593 proc_vector[i] = PTRIN(proc_vector32[i]);
1594 *proc_vectorp = proc_vector;
1597 free(proc_vector32, M_TEMP);
1603 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1604 size_t *vsizep, enum proc_vector_type type)
1606 struct ps_strings pss;
1608 vm_offset_t vptr, ptr;
1613 #ifdef COMPAT_FREEBSD32
1614 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1615 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1617 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1623 vptr = (vm_offset_t)pss.ps_argvstr;
1624 vsize = pss.ps_nargvstr;
1625 if (vsize > ARG_MAX)
1627 size = vsize * sizeof(char *);
1630 vptr = (vm_offset_t)pss.ps_envstr;
1631 vsize = pss.ps_nenvstr;
1632 if (vsize > ARG_MAX)
1634 size = vsize * sizeof(char *);
1638 * The aux array is just above env array on the stack. Check
1639 * that the address is naturally aligned.
1641 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1643 #if __ELF_WORD_SIZE == 64
1644 if (vptr % sizeof(uint64_t) != 0)
1646 if (vptr % sizeof(uint32_t) != 0)
1650 * We count the array size reading the aux vectors from the
1651 * stack until AT_NULL vector is returned. So (to keep the code
1652 * simple) we read the process stack twice: the first time here
1653 * to find the size and the second time when copying the vectors
1654 * to the allocated proc_vector.
1656 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1657 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1660 if (aux.a_type == AT_NULL)
1665 * If the PROC_AUXV_MAX entries are iterated over, and we have
1666 * not reached AT_NULL, it is most likely we are reading wrong
1667 * data: either the process doesn't have auxv array or data has
1668 * been modified. Return the error in this case.
1670 if (aux.a_type != AT_NULL)
1673 size = vsize * sizeof(aux);
1676 KASSERT(0, ("Wrong proc vector type: %d", type));
1677 return (EINVAL); /* In case we are built without INVARIANTS. */
1679 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1680 if (proc_vector == NULL)
1682 error = proc_read_mem(td, p, vptr, proc_vector, size);
1684 free(proc_vector, M_TEMP);
1687 *proc_vectorp = proc_vector;
1693 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1696 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1697 enum proc_vector_type type)
1699 size_t done, len, nchr, vsize;
1701 char **proc_vector, *sptr;
1702 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1704 PROC_ASSERT_HELD(p);
1707 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1709 nchr = 2 * (PATH_MAX + ARG_MAX);
1711 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1714 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1716 * The program may have scribbled into its argv array, e.g. to
1717 * remove some arguments. If that has happened, break out
1718 * before trying to read from NULL.
1720 if (proc_vector[i] == NULL)
1722 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1723 error = proc_read_string(td, p, sptr, pss_string,
1724 sizeof(pss_string));
1727 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1728 if (done + len >= nchr)
1729 len = nchr - done - 1;
1730 sbuf_bcat(sb, pss_string, len);
1731 if (len != GET_PS_STRINGS_CHUNK_SZ)
1733 done += GET_PS_STRINGS_CHUNK_SZ;
1735 sbuf_bcat(sb, "", 1);
1739 free(proc_vector, M_TEMP);
1744 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1747 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1751 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1754 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1758 proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb)
1764 error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX);
1766 #ifdef COMPAT_FREEBSD32
1767 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1768 size = vsize * sizeof(Elf32_Auxinfo);
1771 size = vsize * sizeof(Elf_Auxinfo);
1772 error = sbuf_bcat(sb, auxv, size);
1779 * This sysctl allows a process to retrieve the argument list or process
1780 * title for another process without groping around in the address space
1781 * of the other process. It also allow a process to set its own "process
1782 * title to a string of its own choice.
1785 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1787 int *name = (int *)arg1;
1788 u_int namelen = arg2;
1789 struct pargs *newpa, *pa;
1792 int flags, error = 0, error2;
1797 flags = PGET_CANSEE;
1798 if (req->newptr != NULL)
1799 flags |= PGET_ISCURRENT;
1800 error = pget((pid_t)name[0], flags, &p);
1808 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1810 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1813 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1814 error = proc_getargv(curthread, p, &sb);
1815 error2 = sbuf_finish(&sb);
1818 if (error == 0 && error2 != 0)
1823 if (error != 0 || req->newptr == NULL)
1826 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1828 newpa = pargs_alloc(req->newlen);
1829 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1843 * This sysctl allows a process to retrieve environment of another process.
1846 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1848 int *name = (int *)arg1;
1849 u_int namelen = arg2;
1857 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1860 if ((p->p_flag & P_SYSTEM) != 0) {
1865 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1866 error = proc_getenvv(curthread, p, &sb);
1867 error2 = sbuf_finish(&sb);
1870 return (error != 0 ? error : error2);
1874 * This sysctl allows a process to retrieve ELF auxiliary vector of
1878 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1880 int *name = (int *)arg1;
1881 u_int namelen = arg2;
1889 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1892 if ((p->p_flag & P_SYSTEM) != 0) {
1896 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1897 error = proc_getauxv(curthread, p, &sb);
1898 error2 = sbuf_finish(&sb);
1901 return (error != 0 ? error : error2);
1905 * This sysctl allows a process to retrieve the path of the executable for
1906 * itself or another process.
1909 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1911 pid_t *pidp = (pid_t *)arg1;
1912 unsigned int arglen = arg2;
1915 char *retbuf, *freebuf;
1916 int error, vfslocked;
1920 if (*pidp == -1) { /* -1 means this process */
1921 p = req->td->td_proc;
1923 error = pget(*pidp, PGET_CANSEE, &p);
1937 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1938 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
1940 VFS_UNLOCK_GIANT(vfslocked);
1943 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1944 free(freebuf, M_TEMP);
1949 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1962 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1965 sv_name = p->p_sysent->sv_name;
1967 return (sysctl_handle_string(oidp, sv_name, 0, req));
1970 #ifdef KINFO_OVMENTRY_SIZE
1971 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1974 #ifdef COMPAT_FREEBSD7
1976 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1978 vm_map_entry_t entry, tmp_entry;
1979 unsigned int last_timestamp;
1980 char *fullpath, *freepath;
1981 struct kinfo_ovmentry *kve;
1991 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1994 vm = vmspace_acquire_ref(p);
1999 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2002 vm_map_lock_read(map);
2003 for (entry = map->header.next; entry != &map->header;
2004 entry = entry->next) {
2005 vm_object_t obj, tobj, lobj;
2009 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2012 bzero(kve, sizeof(*kve));
2013 kve->kve_structsize = sizeof(*kve);
2015 kve->kve_private_resident = 0;
2016 obj = entry->object.vm_object;
2018 VM_OBJECT_LOCK(obj);
2019 if (obj->shadow_count == 1)
2020 kve->kve_private_resident =
2021 obj->resident_page_count;
2023 kve->kve_resident = 0;
2024 addr = entry->start;
2025 while (addr < entry->end) {
2026 if (pmap_extract(map->pmap, addr))
2027 kve->kve_resident++;
2031 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2033 VM_OBJECT_LOCK(tobj);
2035 VM_OBJECT_UNLOCK(lobj);
2039 kve->kve_start = (void*)entry->start;
2040 kve->kve_end = (void*)entry->end;
2041 kve->kve_offset = (off_t)entry->offset;
2043 if (entry->protection & VM_PROT_READ)
2044 kve->kve_protection |= KVME_PROT_READ;
2045 if (entry->protection & VM_PROT_WRITE)
2046 kve->kve_protection |= KVME_PROT_WRITE;
2047 if (entry->protection & VM_PROT_EXECUTE)
2048 kve->kve_protection |= KVME_PROT_EXEC;
2050 if (entry->eflags & MAP_ENTRY_COW)
2051 kve->kve_flags |= KVME_FLAG_COW;
2052 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2053 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2054 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2055 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2057 last_timestamp = map->timestamp;
2058 vm_map_unlock_read(map);
2060 kve->kve_fileid = 0;
2066 switch (lobj->type) {
2068 kve->kve_type = KVME_TYPE_DEFAULT;
2071 kve->kve_type = KVME_TYPE_VNODE;
2076 kve->kve_type = KVME_TYPE_SWAP;
2079 kve->kve_type = KVME_TYPE_DEVICE;
2082 kve->kve_type = KVME_TYPE_PHYS;
2085 kve->kve_type = KVME_TYPE_DEAD;
2088 kve->kve_type = KVME_TYPE_SG;
2091 kve->kve_type = KVME_TYPE_UNKNOWN;
2095 VM_OBJECT_UNLOCK(lobj);
2097 kve->kve_ref_count = obj->ref_count;
2098 kve->kve_shadow_count = obj->shadow_count;
2099 VM_OBJECT_UNLOCK(obj);
2101 vn_fullpath(curthread, vp, &fullpath,
2103 cred = curthread->td_ucred;
2104 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2105 vn_lock(vp, LK_SHARED | LK_RETRY);
2106 if (VOP_GETATTR(vp, &va, cred) == 0) {
2107 kve->kve_fileid = va.va_fileid;
2108 kve->kve_fsid = va.va_fsid;
2111 VFS_UNLOCK_GIANT(vfslocked);
2114 kve->kve_type = KVME_TYPE_NONE;
2115 kve->kve_ref_count = 0;
2116 kve->kve_shadow_count = 0;
2119 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2120 if (freepath != NULL)
2121 free(freepath, M_TEMP);
2123 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2124 vm_map_lock_read(map);
2127 if (last_timestamp != map->timestamp) {
2128 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2132 vm_map_unlock_read(map);
2138 #endif /* COMPAT_FREEBSD7 */
2140 #ifdef KINFO_VMENTRY_SIZE
2141 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2145 * Must be called with the process locked and will return unlocked.
2148 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2150 vm_map_entry_t entry, tmp_entry;
2151 unsigned int last_timestamp;
2152 char *fullpath, *freepath;
2153 struct kinfo_vmentry *kve;
2161 PROC_LOCK_ASSERT(p, MA_OWNED);
2165 vm = vmspace_acquire_ref(p);
2170 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2174 vm_map_lock_read(map);
2175 for (entry = map->header.next; entry != &map->header;
2176 entry = entry->next) {
2177 vm_object_t obj, tobj, lobj;
2179 vm_paddr_t locked_pa;
2180 int vfslocked, mincoreinfo;
2182 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2185 bzero(kve, sizeof(*kve));
2187 kve->kve_private_resident = 0;
2188 obj = entry->object.vm_object;
2190 VM_OBJECT_LOCK(obj);
2191 if (obj->shadow_count == 1)
2192 kve->kve_private_resident =
2193 obj->resident_page_count;
2195 kve->kve_resident = 0;
2196 addr = entry->start;
2197 if (vmmap_skip_res_cnt)
2198 goto skip_resident_count;
2199 while (addr < entry->end) {
2201 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2203 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2204 if (mincoreinfo & MINCORE_INCORE)
2205 kve->kve_resident++;
2206 if (mincoreinfo & MINCORE_SUPER)
2207 kve->kve_flags |= KVME_FLAG_SUPER;
2211 skip_resident_count:
2212 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2214 VM_OBJECT_LOCK(tobj);
2216 VM_OBJECT_UNLOCK(lobj);
2220 kve->kve_start = entry->start;
2221 kve->kve_end = entry->end;
2222 kve->kve_offset = entry->offset;
2224 if (entry->protection & VM_PROT_READ)
2225 kve->kve_protection |= KVME_PROT_READ;
2226 if (entry->protection & VM_PROT_WRITE)
2227 kve->kve_protection |= KVME_PROT_WRITE;
2228 if (entry->protection & VM_PROT_EXECUTE)
2229 kve->kve_protection |= KVME_PROT_EXEC;
2231 if (entry->eflags & MAP_ENTRY_COW)
2232 kve->kve_flags |= KVME_FLAG_COW;
2233 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2234 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2235 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2236 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2237 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2238 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2239 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2240 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2242 last_timestamp = map->timestamp;
2243 vm_map_unlock_read(map);
2249 switch (lobj->type) {
2251 kve->kve_type = KVME_TYPE_DEFAULT;
2254 kve->kve_type = KVME_TYPE_VNODE;
2259 kve->kve_type = KVME_TYPE_SWAP;
2262 kve->kve_type = KVME_TYPE_DEVICE;
2265 kve->kve_type = KVME_TYPE_PHYS;
2268 kve->kve_type = KVME_TYPE_DEAD;
2271 kve->kve_type = KVME_TYPE_SG;
2273 case OBJT_MGTDEVICE:
2274 kve->kve_type = KVME_TYPE_MGTDEVICE;
2277 kve->kve_type = KVME_TYPE_UNKNOWN;
2281 VM_OBJECT_UNLOCK(lobj);
2283 kve->kve_ref_count = obj->ref_count;
2284 kve->kve_shadow_count = obj->shadow_count;
2285 VM_OBJECT_UNLOCK(obj);
2287 vn_fullpath(curthread, vp, &fullpath,
2289 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2290 cred = curthread->td_ucred;
2291 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2292 vn_lock(vp, LK_SHARED | LK_RETRY);
2293 if (VOP_GETATTR(vp, &va, cred) == 0) {
2294 kve->kve_vn_fileid = va.va_fileid;
2295 kve->kve_vn_fsid = va.va_fsid;
2297 MAKEIMODE(va.va_type, va.va_mode);
2298 kve->kve_vn_size = va.va_size;
2299 kve->kve_vn_rdev = va.va_rdev;
2300 kve->kve_status = KF_ATTR_VALID;
2303 VFS_UNLOCK_GIANT(vfslocked);
2306 kve->kve_type = KVME_TYPE_NONE;
2307 kve->kve_ref_count = 0;
2308 kve->kve_shadow_count = 0;
2311 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2312 if (freepath != NULL)
2313 free(freepath, M_TEMP);
2315 /* Pack record size down */
2316 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2317 strlen(kve->kve_path) + 1;
2318 kve->kve_structsize = roundup(kve->kve_structsize,
2320 error = sbuf_bcat(sb, kve, kve->kve_structsize);
2321 vm_map_lock_read(map);
2324 if (last_timestamp != map->timestamp) {
2325 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2329 vm_map_unlock_read(map);
2337 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2341 int error, error2, *name;
2344 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2345 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2350 error = kern_proc_vmmap_out(p, &sb);
2351 error2 = sbuf_finish(&sb);
2353 return (error != 0 ? error : error2);
2356 #if defined(STACK) || defined(DDB)
2358 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2360 struct kinfo_kstack *kkstp;
2361 int error, i, *name, numthreads;
2362 lwpid_t *lwpidarray;
2369 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2373 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2374 st = stack_create();
2380 if (numthreads < p->p_numthreads) {
2381 if (lwpidarray != NULL) {
2382 free(lwpidarray, M_TEMP);
2385 numthreads = p->p_numthreads;
2387 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2395 * XXXRW: During the below loop, execve(2) and countless other sorts
2396 * of changes could have taken place. Should we check to see if the
2397 * vmspace has been replaced, or the like, in order to prevent
2398 * giving a snapshot that spans, say, execve(2), with some threads
2399 * before and some after? Among other things, the credentials could
2400 * have changed, in which case the right to extract debug info might
2401 * no longer be assured.
2403 FOREACH_THREAD_IN_PROC(p, td) {
2404 KASSERT(i < numthreads,
2405 ("sysctl_kern_proc_kstack: numthreads"));
2406 lwpidarray[i] = td->td_tid;
2410 for (i = 0; i < numthreads; i++) {
2411 td = thread_find(p, lwpidarray[i]);
2415 bzero(kkstp, sizeof(*kkstp));
2416 (void)sbuf_new(&sb, kkstp->kkst_trace,
2417 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2419 kkstp->kkst_tid = td->td_tid;
2420 if (TD_IS_SWAPPED(td))
2421 kkstp->kkst_state = KKST_STATE_SWAPPED;
2422 else if (TD_IS_RUNNING(td))
2423 kkstp->kkst_state = KKST_STATE_RUNNING;
2425 kkstp->kkst_state = KKST_STATE_STACKOK;
2426 stack_save_td(st, td);
2430 stack_sbuf_print(&sb, st);
2433 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2440 if (lwpidarray != NULL)
2441 free(lwpidarray, M_TEMP);
2443 free(kkstp, M_TEMP);
2449 * This sysctl allows a process to retrieve the full list of groups from
2450 * itself or another process.
2453 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2455 pid_t *pidp = (pid_t *)arg1;
2456 unsigned int arglen = arg2;
2463 if (*pidp == -1) { /* -1 means this process */
2464 p = req->td->td_proc;
2466 error = pget(*pidp, PGET_CANSEE, &p);
2471 cred = crhold(p->p_ucred);
2475 error = SYSCTL_OUT(req, cred->cr_groups,
2476 cred->cr_ngroups * sizeof(gid_t));
2482 * This sysctl allows a process to retrieve or/and set the resource limit for
2486 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2488 int *name = (int *)arg1;
2489 u_int namelen = arg2;
2498 which = (u_int)name[1];
2499 if (which >= RLIM_NLIMITS)
2502 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2505 flags = PGET_HOLD | PGET_NOTWEXIT;
2506 if (req->newptr != NULL)
2507 flags |= PGET_CANDEBUG;
2509 flags |= PGET_CANSEE;
2510 error = pget((pid_t)name[0], flags, &p);
2517 if (req->oldptr != NULL) {
2519 lim_rlimit(p, which, &rlim);
2522 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2529 if (req->newptr != NULL) {
2530 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2532 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2541 * This sysctl allows a process to retrieve ps_strings structure location of
2545 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2547 int *name = (int *)arg1;
2548 u_int namelen = arg2;
2550 vm_offset_t ps_strings;
2552 #ifdef COMPAT_FREEBSD32
2553 uint32_t ps_strings32;
2559 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2562 #ifdef COMPAT_FREEBSD32
2563 if ((req->flags & SCTL_MASK32) != 0) {
2565 * We return 0 if the 32 bit emulation request is for a 64 bit
2568 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2569 PTROUT(p->p_sysent->sv_psstrings) : 0;
2571 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2575 ps_strings = p->p_sysent->sv_psstrings;
2577 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2582 * This sysctl allows a process to retrieve umask of another process.
2585 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2587 int *name = (int *)arg1;
2588 u_int namelen = arg2;
2596 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2600 FILEDESC_SLOCK(p->p_fd);
2601 fd_cmask = p->p_fd->fd_cmask;
2602 FILEDESC_SUNLOCK(p->p_fd);
2604 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2609 * This sysctl allows a process to set and retrieve binary osreldate of
2613 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2615 int *name = (int *)arg1;
2616 u_int namelen = arg2;
2618 int flags, error, osrel;
2623 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2626 flags = PGET_HOLD | PGET_NOTWEXIT;
2627 if (req->newptr != NULL)
2628 flags |= PGET_CANDEBUG;
2630 flags |= PGET_CANSEE;
2631 error = pget((pid_t)name[0], flags, &p);
2635 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2639 if (req->newptr != NULL) {
2640 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2655 sysctl_kern_proc_sigtramp(SYSCTL_HANDLER_ARGS)
2657 int *name = (int *)arg1;
2658 u_int namelen = arg2;
2660 struct kinfo_sigtramp kst;
2661 const struct sysentvec *sv;
2663 #ifdef COMPAT_FREEBSD32
2664 struct kinfo_sigtramp32 kst32;
2670 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2674 #ifdef COMPAT_FREEBSD32
2675 if ((req->flags & SCTL_MASK32) != 0) {
2676 bzero(&kst32, sizeof(kst32));
2677 if (SV_PROC_FLAG(p, SV_ILP32)) {
2678 if (sv->sv_sigcode_base != 0) {
2679 kst32.ksigtramp_start = sv->sv_sigcode_base;
2680 kst32.ksigtramp_end = sv->sv_sigcode_base +
2683 kst32.ksigtramp_start = sv->sv_psstrings -
2685 kst32.ksigtramp_end = sv->sv_psstrings;
2689 error = SYSCTL_OUT(req, &kst32, sizeof(kst32));
2693 bzero(&kst, sizeof(kst));
2694 if (sv->sv_sigcode_base != 0) {
2695 kst.ksigtramp_start = (char *)sv->sv_sigcode_base;
2696 kst.ksigtramp_end = (char *)sv->sv_sigcode_base +
2699 kst.ksigtramp_start = (char *)sv->sv_psstrings -
2701 kst.ksigtramp_end = (char *)sv->sv_psstrings;
2704 error = SYSCTL_OUT(req, &kst, sizeof(kst));
2708 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2710 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2711 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2712 "Return entire process table");
2714 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2715 sysctl_kern_proc, "Process table");
2717 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2718 sysctl_kern_proc, "Process table");
2720 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2721 sysctl_kern_proc, "Process table");
2723 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2724 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2726 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2727 sysctl_kern_proc, "Process table");
2729 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2730 sysctl_kern_proc, "Process table");
2732 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2733 sysctl_kern_proc, "Process table");
2735 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2736 sysctl_kern_proc, "Process table");
2738 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2739 sysctl_kern_proc, "Return process table, no threads");
2741 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2742 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2743 sysctl_kern_proc_args, "Process argument list");
2745 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2746 sysctl_kern_proc_env, "Process environment");
2748 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2749 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2751 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2752 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2754 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2755 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2756 "Process syscall vector name (ABI type)");
2758 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2759 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2761 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2762 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2764 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2765 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2767 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2768 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2770 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2771 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2773 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2774 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2776 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2777 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2779 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2780 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2782 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2783 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2784 "Return process table, no threads");
2786 #ifdef COMPAT_FREEBSD7
2787 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2788 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2791 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2792 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2794 #if defined(STACK) || defined(DDB)
2795 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2796 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2799 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2800 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2802 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2803 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2804 "Process resource limits");
2806 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2807 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2808 "Process ps_strings location");
2810 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2811 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2813 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2814 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2815 "Process binary osreldate");
2817 static SYSCTL_NODE(_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD |
2818 CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp,
2819 "Process signal trampoline location");