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>
58 #include <sys/rwlock.h>
60 #include <sys/sysent.h>
61 #include <sys/sched.h>
63 #include <sys/stack.h>
65 #include <sys/sysctl.h>
66 #include <sys/filedesc.h>
68 #include <sys/signalvar.h>
73 #include <sys/vnode.h>
74 #include <sys/eventhandler.h>
81 #include <vm/vm_param.h>
82 #include <vm/vm_extern.h>
84 #include <vm/vm_map.h>
85 #include <vm/vm_object.h>
86 #include <vm/vm_page.h>
89 #ifdef COMPAT_FREEBSD32
90 #include <compat/freebsd32/freebsd32.h>
91 #include <compat/freebsd32/freebsd32_util.h>
94 SDT_PROVIDER_DEFINE(proc);
95 SDT_PROBE_DEFINE4(proc, kernel, ctor, entry, "struct proc *", "int",
97 SDT_PROBE_DEFINE4(proc, kernel, ctor, return, "struct proc *", "int",
99 SDT_PROBE_DEFINE4(proc, kernel, dtor, entry, "struct proc *", "int",
100 "void *", "struct thread *");
101 SDT_PROBE_DEFINE3(proc, kernel, dtor, return, "struct proc *", "int",
103 SDT_PROBE_DEFINE3(proc, kernel, init, entry, "struct proc *", "int",
105 SDT_PROBE_DEFINE3(proc, kernel, init, return, "struct proc *", "int",
108 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
109 MALLOC_DEFINE(M_SESSION, "session", "session header");
110 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
111 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
113 static void doenterpgrp(struct proc *, struct pgrp *);
114 static void orphanpg(struct pgrp *pg);
115 static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp);
116 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
117 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp,
119 static void pgadjustjobc(struct pgrp *pgrp, int entering);
120 static void pgdelete(struct pgrp *);
121 static int proc_ctor(void *mem, int size, void *arg, int flags);
122 static void proc_dtor(void *mem, int size, void *arg);
123 static int proc_init(void *mem, int size, int flags);
124 static void proc_fini(void *mem, int size);
125 static void pargs_free(struct pargs *pa);
126 static struct proc *zpfind_locked(pid_t pid);
129 * Other process lists
131 struct pidhashhead *pidhashtbl;
133 struct pgrphashhead *pgrphashtbl;
135 struct proclist allproc;
136 struct proclist zombproc;
137 struct sx allproc_lock;
138 struct sx proctree_lock;
139 struct mtx ppeers_lock;
140 uma_zone_t proc_zone;
142 int kstack_pages = KSTACK_PAGES;
143 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0,
144 "Kernel stack size in pages");
145 static int vmmap_skip_res_cnt = 0;
146 SYSCTL_INT(_kern, OID_AUTO, proc_vmmap_skip_resident_count, CTLFLAG_RW,
147 &vmmap_skip_res_cnt, 0,
148 "Skip calculation of the pages resident count in kern.proc.vmmap");
150 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
151 #ifdef COMPAT_FREEBSD32
152 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
156 * Initialize global process hashing structures.
162 sx_init(&allproc_lock, "allproc");
163 sx_init(&proctree_lock, "proctree");
164 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
166 LIST_INIT(&zombproc);
167 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
168 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
169 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
170 proc_ctor, proc_dtor, proc_init, proc_fini,
171 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
176 * Prepare a proc for use.
179 proc_ctor(void *mem, int size, void *arg, int flags)
183 p = (struct proc *)mem;
184 SDT_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0);
185 EVENTHANDLER_INVOKE(process_ctor, p);
186 SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0);
191 * Reclaim a proc after use.
194 proc_dtor(void *mem, int size, void *arg)
199 /* INVARIANTS checks go here */
200 p = (struct proc *)mem;
201 td = FIRST_THREAD_IN_PROC(p);
202 SDT_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0);
205 KASSERT((p->p_numthreads == 1),
206 ("bad number of threads in exiting process"));
207 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr"));
209 /* Free all OSD associated to this thread. */
212 EVENTHANDLER_INVOKE(process_dtor, p);
213 if (p->p_ksi != NULL)
214 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue"));
215 SDT_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0);
219 * Initialize type-stable parts of a proc (when newly created).
222 proc_init(void *mem, int size, int flags)
226 p = (struct proc *)mem;
227 SDT_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0);
228 p->p_sched = (struct p_sched *)&p[1];
229 bzero(&p->p_mtx, sizeof(struct mtx));
230 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
231 mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE);
232 cv_init(&p->p_pwait, "ppwait");
233 cv_init(&p->p_dbgwait, "dbgwait");
234 TAILQ_INIT(&p->p_threads); /* all threads in proc */
235 EVENTHANDLER_INVOKE(process_init, p);
236 p->p_stats = pstats_alloc();
237 SDT_PROBE(proc, kernel, init, return, p, size, flags, 0, 0);
242 * UMA should ensure that this function is never called.
243 * Freeing a proc structure would violate type stability.
246 proc_fini(void *mem, int size)
251 p = (struct proc *)mem;
252 EVENTHANDLER_INVOKE(process_fini, p);
253 pstats_free(p->p_stats);
254 thread_free(FIRST_THREAD_IN_PROC(p));
255 mtx_destroy(&p->p_mtx);
256 if (p->p_ksi != NULL)
257 ksiginfo_free(p->p_ksi);
259 panic("proc reclaimed");
264 * Is p an inferior of the current process?
268 register struct proc *p;
271 sx_assert(&proctree_lock, SX_LOCKED);
272 for (; p != curproc; p = p->p_pptr)
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)) {
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);
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;
809 kp->ki_flag2 = p->p_flag2;
812 kp->ki_uid = cred->cr_uid;
813 kp->ki_ruid = cred->cr_ruid;
814 kp->ki_svuid = cred->cr_svuid;
816 if (cred->cr_flags & CRED_FLAG_CAPMODE)
817 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
818 /* XXX bde doesn't like KI_NGROUPS */
819 if (cred->cr_ngroups > KI_NGROUPS) {
820 kp->ki_ngroups = KI_NGROUPS;
821 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
823 kp->ki_ngroups = cred->cr_ngroups;
824 bcopy(cred->cr_groups, kp->ki_groups,
825 kp->ki_ngroups * sizeof(gid_t));
826 kp->ki_rgid = cred->cr_rgid;
827 kp->ki_svgid = cred->cr_svgid;
828 /* If jailed(cred), emulate the old P_JAILED flag. */
830 kp->ki_flag |= P_JAILED;
831 /* If inside the jail, use 0 as a jail ID. */
832 if (cred->cr_prison != curthread->td_ucred->cr_prison)
833 kp->ki_jid = cred->cr_prison->pr_id;
835 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
836 sizeof(kp->ki_loginclass));
840 mtx_lock(&ps->ps_mtx);
841 kp->ki_sigignore = ps->ps_sigignore;
842 kp->ki_sigcatch = ps->ps_sigcatch;
843 mtx_unlock(&ps->ps_mtx);
845 if (p->p_state != PRS_NEW &&
846 p->p_state != PRS_ZOMBIE &&
847 p->p_vmspace != NULL) {
848 struct vmspace *vm = p->p_vmspace;
850 kp->ki_size = vm->vm_map.size;
851 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
852 FOREACH_THREAD_IN_PROC(p, td0) {
853 if (!TD_IS_SWAPPED(td0))
854 kp->ki_rssize += td0->td_kstack_pages;
856 kp->ki_swrss = vm->vm_swrss;
857 kp->ki_tsize = vm->vm_tsize;
858 kp->ki_dsize = vm->vm_dsize;
859 kp->ki_ssize = vm->vm_ssize;
860 } else if (p->p_state == PRS_ZOMBIE)
862 if (kp->ki_flag & P_INMEM)
863 kp->ki_sflag = PS_INMEM;
866 /* Calculate legacy swtime as seconds since 'swtick'. */
867 kp->ki_swtime = (ticks - p->p_swtick) / hz;
868 kp->ki_pid = p->p_pid;
869 kp->ki_nice = p->p_nice;
870 kp->ki_fibnum = p->p_fibnum;
871 kp->ki_start = p->p_stats->p_start;
872 timevaladd(&kp->ki_start, &boottime);
874 rufetch(p, &kp->ki_rusage);
875 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
876 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
878 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
879 /* Some callers want child times in a single value. */
880 kp->ki_childtime = kp->ki_childstime;
881 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
883 FOREACH_THREAD_IN_PROC(p, td0)
884 kp->ki_cow += td0->td_cow;
888 kp->ki_pgid = p->p_pgrp->pg_id;
889 kp->ki_jobc = p->p_pgrp->pg_jobc;
890 sp = p->p_pgrp->pg_session;
893 kp->ki_sid = sp->s_sid;
895 strlcpy(kp->ki_login, sp->s_login,
896 sizeof(kp->ki_login));
898 kp->ki_kiflag |= KI_CTTY;
900 kp->ki_kiflag |= KI_SLEADER;
901 /* XXX proctree_lock */
906 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
907 kp->ki_tdev = tty_udev(tp);
908 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
910 kp->ki_tsid = tp->t_session->s_sid;
913 if (p->p_comm[0] != '\0')
914 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
915 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
916 p->p_sysent->sv_name[0] != '\0')
917 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
918 kp->ki_siglist = p->p_siglist;
919 kp->ki_xstat = p->p_xstat;
920 kp->ki_acflag = p->p_acflag;
921 kp->ki_lock = p->p_lock;
923 kp->ki_ppid = p->p_pptr->p_pid;
927 * Fill in information that is thread specific. Must be called with
928 * target process locked. If 'preferthread' is set, overwrite certain
929 * process-related fields that are maintained for both threads and
933 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
939 PROC_LOCK_ASSERT(p, MA_OWNED);
944 if (td->td_wmesg != NULL)
945 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
947 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
948 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
949 if (TD_ON_LOCK(td)) {
950 kp->ki_kiflag |= KI_LOCKBLOCK;
951 strlcpy(kp->ki_lockname, td->td_lockname,
952 sizeof(kp->ki_lockname));
954 kp->ki_kiflag &= ~KI_LOCKBLOCK;
955 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
958 if (p->p_state == PRS_NORMAL) { /* approximate. */
959 if (TD_ON_RUNQ(td) ||
963 } else if (P_SHOULDSTOP(p)) {
965 } else if (TD_IS_SLEEPING(td)) {
966 kp->ki_stat = SSLEEP;
967 } else if (TD_ON_LOCK(td)) {
972 } else if (p->p_state == PRS_ZOMBIE) {
978 /* Things in the thread */
979 kp->ki_wchan = td->td_wchan;
980 kp->ki_pri.pri_level = td->td_priority;
981 kp->ki_pri.pri_native = td->td_base_pri;
982 kp->ki_lastcpu = td->td_lastcpu;
983 kp->ki_oncpu = td->td_oncpu;
984 kp->ki_tdflags = td->td_flags;
985 kp->ki_tid = td->td_tid;
986 kp->ki_numthreads = p->p_numthreads;
987 kp->ki_pcb = td->td_pcb;
988 kp->ki_kstack = (void *)td->td_kstack;
989 kp->ki_slptime = (ticks - td->td_slptick) / hz;
990 kp->ki_pri.pri_class = td->td_pri_class;
991 kp->ki_pri.pri_user = td->td_user_pri;
994 rufetchtd(td, &kp->ki_rusage);
995 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
996 kp->ki_pctcpu = sched_pctcpu(td);
997 kp->ki_estcpu = td->td_estcpu;
998 kp->ki_cow = td->td_cow;
1001 /* We can't get this anymore but ps etc never used it anyway. */
1005 kp->ki_siglist = td->td_siglist;
1006 kp->ki_sigmask = td->td_sigmask;
1013 * Fill in a kinfo_proc structure for the specified process.
1014 * Must be called with the target process locked.
1017 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1020 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1022 fill_kinfo_proc_only(p, kp);
1023 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1024 fill_kinfo_aggregate(p, kp);
1031 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1035 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1038 pstats_fork(struct pstats *src, struct pstats *dst)
1041 bzero(&dst->pstat_startzero,
1042 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1043 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1044 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1048 pstats_free(struct pstats *ps)
1051 free(ps, M_SUBPROC);
1054 static struct proc *
1055 zpfind_locked(pid_t pid)
1059 sx_assert(&allproc_lock, SX_LOCKED);
1060 LIST_FOREACH(p, &zombproc, p_list) {
1061 if (p->p_pid == pid) {
1070 * Locate a zombie process by number
1077 sx_slock(&allproc_lock);
1078 p = zpfind_locked(pid);
1079 sx_sunlock(&allproc_lock);
1083 #ifdef COMPAT_FREEBSD32
1086 * This function is typically used to copy out the kernel address, so
1087 * it can be replaced by assignment of zero.
1089 static inline uint32_t
1090 ptr32_trim(void *ptr)
1094 uptr = (uintptr_t)ptr;
1095 return ((uptr > UINT_MAX) ? 0 : uptr);
1098 #define PTRTRIM_CP(src,dst,fld) \
1099 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1102 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1106 bzero(ki32, sizeof(struct kinfo_proc32));
1107 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1108 CP(*ki, *ki32, ki_layout);
1109 PTRTRIM_CP(*ki, *ki32, ki_args);
1110 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1111 PTRTRIM_CP(*ki, *ki32, ki_addr);
1112 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1113 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1114 PTRTRIM_CP(*ki, *ki32, ki_fd);
1115 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1116 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1117 CP(*ki, *ki32, ki_pid);
1118 CP(*ki, *ki32, ki_ppid);
1119 CP(*ki, *ki32, ki_pgid);
1120 CP(*ki, *ki32, ki_tpgid);
1121 CP(*ki, *ki32, ki_sid);
1122 CP(*ki, *ki32, ki_tsid);
1123 CP(*ki, *ki32, ki_jobc);
1124 CP(*ki, *ki32, ki_tdev);
1125 CP(*ki, *ki32, ki_siglist);
1126 CP(*ki, *ki32, ki_sigmask);
1127 CP(*ki, *ki32, ki_sigignore);
1128 CP(*ki, *ki32, ki_sigcatch);
1129 CP(*ki, *ki32, ki_uid);
1130 CP(*ki, *ki32, ki_ruid);
1131 CP(*ki, *ki32, ki_svuid);
1132 CP(*ki, *ki32, ki_rgid);
1133 CP(*ki, *ki32, ki_svgid);
1134 CP(*ki, *ki32, ki_ngroups);
1135 for (i = 0; i < KI_NGROUPS; i++)
1136 CP(*ki, *ki32, ki_groups[i]);
1137 CP(*ki, *ki32, ki_size);
1138 CP(*ki, *ki32, ki_rssize);
1139 CP(*ki, *ki32, ki_swrss);
1140 CP(*ki, *ki32, ki_tsize);
1141 CP(*ki, *ki32, ki_dsize);
1142 CP(*ki, *ki32, ki_ssize);
1143 CP(*ki, *ki32, ki_xstat);
1144 CP(*ki, *ki32, ki_acflag);
1145 CP(*ki, *ki32, ki_pctcpu);
1146 CP(*ki, *ki32, ki_estcpu);
1147 CP(*ki, *ki32, ki_slptime);
1148 CP(*ki, *ki32, ki_swtime);
1149 CP(*ki, *ki32, ki_cow);
1150 CP(*ki, *ki32, ki_runtime);
1151 TV_CP(*ki, *ki32, ki_start);
1152 TV_CP(*ki, *ki32, ki_childtime);
1153 CP(*ki, *ki32, ki_flag);
1154 CP(*ki, *ki32, ki_kiflag);
1155 CP(*ki, *ki32, ki_traceflag);
1156 CP(*ki, *ki32, ki_stat);
1157 CP(*ki, *ki32, ki_nice);
1158 CP(*ki, *ki32, ki_lock);
1159 CP(*ki, *ki32, ki_rqindex);
1160 CP(*ki, *ki32, ki_oncpu);
1161 CP(*ki, *ki32, ki_lastcpu);
1162 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1163 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1164 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1165 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1166 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1167 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1168 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1169 CP(*ki, *ki32, ki_flag2);
1170 CP(*ki, *ki32, ki_fibnum);
1171 CP(*ki, *ki32, ki_cr_flags);
1172 CP(*ki, *ki32, ki_jid);
1173 CP(*ki, *ki32, ki_numthreads);
1174 CP(*ki, *ki32, ki_tid);
1175 CP(*ki, *ki32, ki_pri);
1176 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1177 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1178 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1179 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1180 PTRTRIM_CP(*ki, *ki32, ki_udata);
1181 CP(*ki, *ki32, ki_sflag);
1182 CP(*ki, *ki32, ki_tdflags);
1187 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1190 struct kinfo_proc ki;
1191 #ifdef COMPAT_FREEBSD32
1192 struct kinfo_proc32 ki32;
1196 PROC_LOCK_ASSERT(p, MA_OWNED);
1197 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1200 fill_kinfo_proc(p, &ki);
1201 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1202 #ifdef COMPAT_FREEBSD32
1203 if ((flags & KERN_PROC_MASK32) != 0) {
1204 freebsd32_kinfo_proc_out(&ki, &ki32);
1205 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1208 error = sbuf_bcat(sb, &ki, sizeof(ki));
1210 FOREACH_THREAD_IN_PROC(p, td) {
1211 fill_kinfo_thread(td, &ki, 1);
1212 #ifdef COMPAT_FREEBSD32
1213 if ((flags & KERN_PROC_MASK32) != 0) {
1214 freebsd32_kinfo_proc_out(&ki, &ki32);
1215 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1218 error = sbuf_bcat(sb, &ki, sizeof(ki));
1228 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1232 struct kinfo_proc ki;
1238 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1239 error = kern_proc_out(p, &sb, flags);
1240 error2 = sbuf_finish(&sb);
1244 else if (error2 != 0)
1264 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1266 int *name = (int *)arg1;
1267 u_int namelen = arg2;
1269 int flags, doingzomb, oid_number;
1272 oid_number = oidp->oid_number;
1273 if (oid_number != KERN_PROC_ALL &&
1274 (oid_number & KERN_PROC_INC_THREAD) == 0)
1275 flags = KERN_PROC_NOTHREADS;
1278 oid_number &= ~KERN_PROC_INC_THREAD;
1280 #ifdef COMPAT_FREEBSD32
1281 if (req->flags & SCTL_MASK32)
1282 flags |= KERN_PROC_MASK32;
1284 if (oid_number == KERN_PROC_PID) {
1287 error = sysctl_wire_old_buffer(req, 0);
1290 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1293 error = sysctl_out_proc(p, req, flags, 0);
1297 switch (oid_number) {
1302 case KERN_PROC_PROC:
1303 if (namelen != 0 && namelen != 1)
1313 /* overestimate by 5 procs */
1314 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1318 error = sysctl_wire_old_buffer(req, 0);
1321 sx_slock(&allproc_lock);
1322 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1324 p = LIST_FIRST(&allproc);
1326 p = LIST_FIRST(&zombproc);
1327 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1329 * Skip embryonic processes.
1332 if (p->p_state == PRS_NEW) {
1336 KASSERT(p->p_ucred != NULL,
1337 ("process credential is NULL for non-NEW proc"));
1339 * Show a user only appropriate processes.
1341 if (p_cansee(curthread, p)) {
1346 * TODO - make more efficient (see notes below).
1349 switch (oid_number) {
1352 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1358 case KERN_PROC_PGRP:
1359 /* could do this by traversing pgrp */
1360 if (p->p_pgrp == NULL ||
1361 p->p_pgrp->pg_id != (pid_t)name[0]) {
1367 case KERN_PROC_RGID:
1368 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1374 case KERN_PROC_SESSION:
1375 if (p->p_session == NULL ||
1376 p->p_session->s_sid != (pid_t)name[0]) {
1383 if ((p->p_flag & P_CONTROLT) == 0 ||
1384 p->p_session == NULL) {
1388 /* XXX proctree_lock */
1389 SESS_LOCK(p->p_session);
1390 if (p->p_session->s_ttyp == NULL ||
1391 tty_udev(p->p_session->s_ttyp) !=
1393 SESS_UNLOCK(p->p_session);
1397 SESS_UNLOCK(p->p_session);
1401 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1407 case KERN_PROC_RUID:
1408 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1414 case KERN_PROC_PROC:
1422 error = sysctl_out_proc(p, req, flags, doingzomb);
1424 sx_sunlock(&allproc_lock);
1429 sx_sunlock(&allproc_lock);
1434 pargs_alloc(int len)
1438 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1440 refcount_init(&pa->ar_ref, 1);
1441 pa->ar_length = len;
1446 pargs_free(struct pargs *pa)
1453 pargs_hold(struct pargs *pa)
1458 refcount_acquire(&pa->ar_ref);
1462 pargs_drop(struct pargs *pa)
1467 if (refcount_release(&pa->ar_ref))
1472 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1478 iov.iov_base = (caddr_t)buf;
1482 uio.uio_offset = offset;
1483 uio.uio_resid = (ssize_t)len;
1484 uio.uio_segflg = UIO_SYSSPACE;
1485 uio.uio_rw = UIO_READ;
1488 return (proc_rwmem(p, &uio));
1492 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1498 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1500 * Reading the chunk may validly return EFAULT if the string is shorter
1501 * than the chunk and is aligned at the end of the page, assuming the
1502 * next page is not mapped. So if EFAULT is returned do a fallback to
1503 * one byte read loop.
1505 if (error == EFAULT) {
1506 for (i = 0; i < len; i++, buf++, sptr++) {
1507 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1518 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1520 enum proc_vector_type {
1526 #ifdef COMPAT_FREEBSD32
1528 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1529 size_t *vsizep, enum proc_vector_type type)
1531 struct freebsd32_ps_strings pss;
1533 vm_offset_t vptr, ptr;
1534 uint32_t *proc_vector32;
1539 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1545 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1546 vsize = pss.ps_nargvstr;
1547 if (vsize > ARG_MAX)
1549 size = vsize * sizeof(int32_t);
1552 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1553 vsize = pss.ps_nenvstr;
1554 if (vsize > ARG_MAX)
1556 size = vsize * sizeof(int32_t);
1559 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1560 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1563 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1564 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1567 if (aux.a_type == AT_NULL)
1571 if (aux.a_type != AT_NULL)
1574 size = vsize * sizeof(aux);
1577 KASSERT(0, ("Wrong proc vector type: %d", type));
1580 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1581 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1584 if (type == PROC_AUX) {
1585 *proc_vectorp = (char **)proc_vector32;
1589 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1590 for (i = 0; i < (int)vsize; i++)
1591 proc_vector[i] = PTRIN(proc_vector32[i]);
1592 *proc_vectorp = proc_vector;
1595 free(proc_vector32, M_TEMP);
1601 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1602 size_t *vsizep, enum proc_vector_type type)
1604 struct ps_strings pss;
1606 vm_offset_t vptr, ptr;
1611 #ifdef COMPAT_FREEBSD32
1612 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1613 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1615 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1621 vptr = (vm_offset_t)pss.ps_argvstr;
1622 vsize = pss.ps_nargvstr;
1623 if (vsize > ARG_MAX)
1625 size = vsize * sizeof(char *);
1628 vptr = (vm_offset_t)pss.ps_envstr;
1629 vsize = pss.ps_nenvstr;
1630 if (vsize > ARG_MAX)
1632 size = vsize * sizeof(char *);
1636 * The aux array is just above env array on the stack. Check
1637 * that the address is naturally aligned.
1639 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1641 #if __ELF_WORD_SIZE == 64
1642 if (vptr % sizeof(uint64_t) != 0)
1644 if (vptr % sizeof(uint32_t) != 0)
1648 * We count the array size reading the aux vectors from the
1649 * stack until AT_NULL vector is returned. So (to keep the code
1650 * simple) we read the process stack twice: the first time here
1651 * to find the size and the second time when copying the vectors
1652 * to the allocated proc_vector.
1654 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1655 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1658 if (aux.a_type == AT_NULL)
1663 * If the PROC_AUXV_MAX entries are iterated over, and we have
1664 * not reached AT_NULL, it is most likely we are reading wrong
1665 * data: either the process doesn't have auxv array or data has
1666 * been modified. Return the error in this case.
1668 if (aux.a_type != AT_NULL)
1671 size = vsize * sizeof(aux);
1674 KASSERT(0, ("Wrong proc vector type: %d", type));
1675 return (EINVAL); /* In case we are built without INVARIANTS. */
1677 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1678 if (proc_vector == NULL)
1680 error = proc_read_mem(td, p, vptr, proc_vector, size);
1682 free(proc_vector, M_TEMP);
1685 *proc_vectorp = proc_vector;
1691 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1694 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1695 enum proc_vector_type type)
1697 size_t done, len, nchr, vsize;
1699 char **proc_vector, *sptr;
1700 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1702 PROC_ASSERT_HELD(p);
1705 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1707 nchr = 2 * (PATH_MAX + ARG_MAX);
1709 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1712 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1714 * The program may have scribbled into its argv array, e.g. to
1715 * remove some arguments. If that has happened, break out
1716 * before trying to read from NULL.
1718 if (proc_vector[i] == NULL)
1720 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1721 error = proc_read_string(td, p, sptr, pss_string,
1722 sizeof(pss_string));
1725 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1726 if (done + len >= nchr)
1727 len = nchr - done - 1;
1728 sbuf_bcat(sb, pss_string, len);
1729 if (len != GET_PS_STRINGS_CHUNK_SZ)
1731 done += GET_PS_STRINGS_CHUNK_SZ;
1733 sbuf_bcat(sb, "", 1);
1737 free(proc_vector, M_TEMP);
1742 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1745 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1749 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1752 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1756 proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb)
1762 error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX);
1764 #ifdef COMPAT_FREEBSD32
1765 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1766 size = vsize * sizeof(Elf32_Auxinfo);
1769 size = vsize * sizeof(Elf_Auxinfo);
1770 error = sbuf_bcat(sb, auxv, size);
1777 * This sysctl allows a process to retrieve the argument list or process
1778 * title for another process without groping around in the address space
1779 * of the other process. It also allow a process to set its own "process
1780 * title to a string of its own choice.
1783 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1785 int *name = (int *)arg1;
1786 u_int namelen = arg2;
1787 struct pargs *newpa, *pa;
1790 int flags, error = 0, error2;
1795 flags = PGET_CANSEE;
1796 if (req->newptr != NULL)
1797 flags |= PGET_ISCURRENT;
1798 error = pget((pid_t)name[0], flags, &p);
1806 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1808 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1811 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1812 error = proc_getargv(curthread, p, &sb);
1813 error2 = sbuf_finish(&sb);
1816 if (error == 0 && error2 != 0)
1821 if (error != 0 || req->newptr == NULL)
1824 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1826 newpa = pargs_alloc(req->newlen);
1827 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1841 * This sysctl allows a process to retrieve environment of another process.
1844 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1846 int *name = (int *)arg1;
1847 u_int namelen = arg2;
1855 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1858 if ((p->p_flag & P_SYSTEM) != 0) {
1863 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1864 error = proc_getenvv(curthread, p, &sb);
1865 error2 = sbuf_finish(&sb);
1868 return (error != 0 ? error : error2);
1872 * This sysctl allows a process to retrieve ELF auxiliary vector of
1876 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1878 int *name = (int *)arg1;
1879 u_int namelen = arg2;
1887 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1890 if ((p->p_flag & P_SYSTEM) != 0) {
1894 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1895 error = proc_getauxv(curthread, p, &sb);
1896 error2 = sbuf_finish(&sb);
1899 return (error != 0 ? error : error2);
1903 * This sysctl allows a process to retrieve the path of the executable for
1904 * itself or another process.
1907 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1909 pid_t *pidp = (pid_t *)arg1;
1910 unsigned int arglen = arg2;
1913 char *retbuf, *freebuf;
1918 if (*pidp == -1) { /* -1 means this process */
1919 p = req->td->td_proc;
1921 error = pget(*pidp, PGET_CANSEE, &p);
1935 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1939 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1940 free(freebuf, M_TEMP);
1945 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1958 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1961 sv_name = p->p_sysent->sv_name;
1963 return (sysctl_handle_string(oidp, sv_name, 0, req));
1966 #ifdef KINFO_OVMENTRY_SIZE
1967 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1970 #ifdef COMPAT_FREEBSD7
1972 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1974 vm_map_entry_t entry, tmp_entry;
1975 unsigned int last_timestamp;
1976 char *fullpath, *freepath;
1977 struct kinfo_ovmentry *kve;
1987 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1990 vm = vmspace_acquire_ref(p);
1995 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
1998 vm_map_lock_read(map);
1999 for (entry = map->header.next; entry != &map->header;
2000 entry = entry->next) {
2001 vm_object_t obj, tobj, lobj;
2004 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2007 bzero(kve, sizeof(*kve));
2008 kve->kve_structsize = sizeof(*kve);
2010 kve->kve_private_resident = 0;
2011 obj = entry->object.vm_object;
2013 VM_OBJECT_RLOCK(obj);
2014 if (obj->shadow_count == 1)
2015 kve->kve_private_resident =
2016 obj->resident_page_count;
2018 kve->kve_resident = 0;
2019 addr = entry->start;
2020 while (addr < entry->end) {
2021 if (pmap_extract(map->pmap, addr))
2022 kve->kve_resident++;
2026 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2028 VM_OBJECT_RLOCK(tobj);
2030 VM_OBJECT_RUNLOCK(lobj);
2034 kve->kve_start = (void*)entry->start;
2035 kve->kve_end = (void*)entry->end;
2036 kve->kve_offset = (off_t)entry->offset;
2038 if (entry->protection & VM_PROT_READ)
2039 kve->kve_protection |= KVME_PROT_READ;
2040 if (entry->protection & VM_PROT_WRITE)
2041 kve->kve_protection |= KVME_PROT_WRITE;
2042 if (entry->protection & VM_PROT_EXECUTE)
2043 kve->kve_protection |= KVME_PROT_EXEC;
2045 if (entry->eflags & MAP_ENTRY_COW)
2046 kve->kve_flags |= KVME_FLAG_COW;
2047 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2048 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2049 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2050 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2052 last_timestamp = map->timestamp;
2053 vm_map_unlock_read(map);
2055 kve->kve_fileid = 0;
2061 switch (lobj->type) {
2063 kve->kve_type = KVME_TYPE_DEFAULT;
2066 kve->kve_type = KVME_TYPE_VNODE;
2071 kve->kve_type = KVME_TYPE_SWAP;
2074 kve->kve_type = KVME_TYPE_DEVICE;
2077 kve->kve_type = KVME_TYPE_PHYS;
2080 kve->kve_type = KVME_TYPE_DEAD;
2083 kve->kve_type = KVME_TYPE_SG;
2086 kve->kve_type = KVME_TYPE_UNKNOWN;
2090 VM_OBJECT_RUNLOCK(lobj);
2092 kve->kve_ref_count = obj->ref_count;
2093 kve->kve_shadow_count = obj->shadow_count;
2094 VM_OBJECT_RUNLOCK(obj);
2096 vn_fullpath(curthread, vp, &fullpath,
2098 cred = curthread->td_ucred;
2099 vn_lock(vp, LK_SHARED | LK_RETRY);
2100 if (VOP_GETATTR(vp, &va, cred) == 0) {
2101 kve->kve_fileid = va.va_fileid;
2102 kve->kve_fsid = va.va_fsid;
2107 kve->kve_type = KVME_TYPE_NONE;
2108 kve->kve_ref_count = 0;
2109 kve->kve_shadow_count = 0;
2112 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2113 if (freepath != NULL)
2114 free(freepath, M_TEMP);
2116 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2117 vm_map_lock_read(map);
2120 if (last_timestamp != map->timestamp) {
2121 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2125 vm_map_unlock_read(map);
2131 #endif /* COMPAT_FREEBSD7 */
2133 #ifdef KINFO_VMENTRY_SIZE
2134 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2138 kern_proc_vmmap_resident(vm_map_t map, vm_map_entry_t entry,
2139 struct kinfo_vmentry *kve)
2141 vm_object_t obj, tobj;
2144 vm_paddr_t locked_pa;
2145 vm_pindex_t pi, pi_adv, pindex;
2148 obj = entry->object.vm_object;
2149 addr = entry->start;
2151 pi = OFF_TO_IDX(entry->offset);
2152 for (; addr < entry->end; addr += IDX_TO_OFF(pi_adv), pi += pi_adv) {
2153 if (m_adv != NULL) {
2156 pi_adv = OFF_TO_IDX(entry->end - addr);
2158 for (tobj = obj;; tobj = tobj->backing_object) {
2159 m = vm_page_find_least(tobj, pindex);
2161 if (m->pindex == pindex)
2163 if (pi_adv > m->pindex - pindex) {
2164 pi_adv = m->pindex - pindex;
2168 if (tobj->backing_object == NULL)
2170 pindex += OFF_TO_IDX(tobj->
2171 backing_object_offset);
2175 if (m->psind != 0 && addr + pagesizes[1] <= entry->end &&
2176 (addr & (pagesizes[1] - 1)) == 0 &&
2177 (pmap_mincore(map->pmap, addr, &locked_pa) &
2178 MINCORE_SUPER) != 0) {
2179 kve->kve_flags |= KVME_FLAG_SUPER;
2180 pi_adv = OFF_TO_IDX(pagesizes[1]);
2183 * We do not test the found page on validity.
2184 * Either the page is busy and being paged in,
2185 * or it was invalidated. The first case
2186 * should be counted as resident, the second
2187 * is not so clear; we do account both.
2191 kve->kve_resident += pi_adv;
2194 PA_UNLOCK_COND(locked_pa);
2198 * Must be called with the process locked and will return unlocked.
2201 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2203 vm_map_entry_t entry, tmp_entry;
2206 vm_object_t obj, tobj, lobj;
2207 char *fullpath, *freepath;
2208 struct kinfo_vmentry *kve;
2213 unsigned int last_timestamp;
2216 PROC_LOCK_ASSERT(p, MA_OWNED);
2220 vm = vmspace_acquire_ref(p);
2225 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2229 vm_map_lock_read(map);
2230 for (entry = map->header.next; entry != &map->header;
2231 entry = entry->next) {
2232 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2236 bzero(kve, sizeof(*kve));
2237 obj = entry->object.vm_object;
2239 for (tobj = obj; tobj != NULL;
2240 tobj = tobj->backing_object) {
2241 VM_OBJECT_RLOCK(tobj);
2244 if (obj->backing_object == NULL)
2245 kve->kve_private_resident =
2246 obj->resident_page_count;
2247 if (!vmmap_skip_res_cnt)
2248 kern_proc_vmmap_resident(map, entry, kve);
2249 for (tobj = obj; tobj != NULL;
2250 tobj = tobj->backing_object) {
2251 if (tobj != obj && tobj != lobj)
2252 VM_OBJECT_RUNLOCK(tobj);
2258 kve->kve_start = entry->start;
2259 kve->kve_end = entry->end;
2260 kve->kve_offset = entry->offset;
2262 if (entry->protection & VM_PROT_READ)
2263 kve->kve_protection |= KVME_PROT_READ;
2264 if (entry->protection & VM_PROT_WRITE)
2265 kve->kve_protection |= KVME_PROT_WRITE;
2266 if (entry->protection & VM_PROT_EXECUTE)
2267 kve->kve_protection |= KVME_PROT_EXEC;
2269 if (entry->eflags & MAP_ENTRY_COW)
2270 kve->kve_flags |= KVME_FLAG_COW;
2271 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2272 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2273 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2274 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2275 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2276 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2277 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2278 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2280 last_timestamp = map->timestamp;
2281 vm_map_unlock_read(map);
2287 switch (lobj->type) {
2289 kve->kve_type = KVME_TYPE_DEFAULT;
2292 kve->kve_type = KVME_TYPE_VNODE;
2297 kve->kve_type = KVME_TYPE_SWAP;
2300 kve->kve_type = KVME_TYPE_DEVICE;
2303 kve->kve_type = KVME_TYPE_PHYS;
2306 kve->kve_type = KVME_TYPE_DEAD;
2309 kve->kve_type = KVME_TYPE_SG;
2311 case OBJT_MGTDEVICE:
2312 kve->kve_type = KVME_TYPE_MGTDEVICE;
2315 kve->kve_type = KVME_TYPE_UNKNOWN;
2319 VM_OBJECT_RUNLOCK(lobj);
2321 kve->kve_ref_count = obj->ref_count;
2322 kve->kve_shadow_count = obj->shadow_count;
2323 VM_OBJECT_RUNLOCK(obj);
2325 vn_fullpath(curthread, vp, &fullpath,
2327 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2328 cred = curthread->td_ucred;
2329 vn_lock(vp, LK_SHARED | LK_RETRY);
2330 if (VOP_GETATTR(vp, &va, cred) == 0) {
2331 kve->kve_vn_fileid = va.va_fileid;
2332 kve->kve_vn_fsid = va.va_fsid;
2334 MAKEIMODE(va.va_type, va.va_mode);
2335 kve->kve_vn_size = va.va_size;
2336 kve->kve_vn_rdev = va.va_rdev;
2337 kve->kve_status = KF_ATTR_VALID;
2342 kve->kve_type = KVME_TYPE_NONE;
2343 kve->kve_ref_count = 0;
2344 kve->kve_shadow_count = 0;
2347 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2348 if (freepath != NULL)
2349 free(freepath, M_TEMP);
2351 /* Pack record size down */
2352 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2353 strlen(kve->kve_path) + 1;
2354 kve->kve_structsize = roundup(kve->kve_structsize,
2356 error = sbuf_bcat(sb, kve, kve->kve_structsize);
2357 vm_map_lock_read(map);
2360 if (last_timestamp != map->timestamp) {
2361 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2365 vm_map_unlock_read(map);
2373 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2377 int error, error2, *name;
2380 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2381 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2386 error = kern_proc_vmmap_out(p, &sb);
2387 error2 = sbuf_finish(&sb);
2389 return (error != 0 ? error : error2);
2392 #if defined(STACK) || defined(DDB)
2394 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2396 struct kinfo_kstack *kkstp;
2397 int error, i, *name, numthreads;
2398 lwpid_t *lwpidarray;
2405 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2409 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2410 st = stack_create();
2416 if (numthreads < p->p_numthreads) {
2417 if (lwpidarray != NULL) {
2418 free(lwpidarray, M_TEMP);
2421 numthreads = p->p_numthreads;
2423 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2431 * XXXRW: During the below loop, execve(2) and countless other sorts
2432 * of changes could have taken place. Should we check to see if the
2433 * vmspace has been replaced, or the like, in order to prevent
2434 * giving a snapshot that spans, say, execve(2), with some threads
2435 * before and some after? Among other things, the credentials could
2436 * have changed, in which case the right to extract debug info might
2437 * no longer be assured.
2439 FOREACH_THREAD_IN_PROC(p, td) {
2440 KASSERT(i < numthreads,
2441 ("sysctl_kern_proc_kstack: numthreads"));
2442 lwpidarray[i] = td->td_tid;
2446 for (i = 0; i < numthreads; i++) {
2447 td = thread_find(p, lwpidarray[i]);
2451 bzero(kkstp, sizeof(*kkstp));
2452 (void)sbuf_new(&sb, kkstp->kkst_trace,
2453 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2455 kkstp->kkst_tid = td->td_tid;
2456 if (TD_IS_SWAPPED(td))
2457 kkstp->kkst_state = KKST_STATE_SWAPPED;
2458 else if (TD_IS_RUNNING(td))
2459 kkstp->kkst_state = KKST_STATE_RUNNING;
2461 kkstp->kkst_state = KKST_STATE_STACKOK;
2462 stack_save_td(st, td);
2466 stack_sbuf_print(&sb, st);
2469 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2476 if (lwpidarray != NULL)
2477 free(lwpidarray, M_TEMP);
2479 free(kkstp, M_TEMP);
2485 * This sysctl allows a process to retrieve the full list of groups from
2486 * itself or another process.
2489 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2491 pid_t *pidp = (pid_t *)arg1;
2492 unsigned int arglen = arg2;
2499 if (*pidp == -1) { /* -1 means this process */
2500 p = req->td->td_proc;
2502 error = pget(*pidp, PGET_CANSEE, &p);
2507 cred = crhold(p->p_ucred);
2511 error = SYSCTL_OUT(req, cred->cr_groups,
2512 cred->cr_ngroups * sizeof(gid_t));
2518 * This sysctl allows a process to retrieve or/and set the resource limit for
2522 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2524 int *name = (int *)arg1;
2525 u_int namelen = arg2;
2534 which = (u_int)name[1];
2535 if (which >= RLIM_NLIMITS)
2538 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2541 flags = PGET_HOLD | PGET_NOTWEXIT;
2542 if (req->newptr != NULL)
2543 flags |= PGET_CANDEBUG;
2545 flags |= PGET_CANSEE;
2546 error = pget((pid_t)name[0], flags, &p);
2553 if (req->oldptr != NULL) {
2555 lim_rlimit(p, which, &rlim);
2558 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2565 if (req->newptr != NULL) {
2566 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2568 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2577 * This sysctl allows a process to retrieve ps_strings structure location of
2581 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2583 int *name = (int *)arg1;
2584 u_int namelen = arg2;
2586 vm_offset_t ps_strings;
2588 #ifdef COMPAT_FREEBSD32
2589 uint32_t ps_strings32;
2595 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2598 #ifdef COMPAT_FREEBSD32
2599 if ((req->flags & SCTL_MASK32) != 0) {
2601 * We return 0 if the 32 bit emulation request is for a 64 bit
2604 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2605 PTROUT(p->p_sysent->sv_psstrings) : 0;
2607 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2611 ps_strings = p->p_sysent->sv_psstrings;
2613 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2618 * This sysctl allows a process to retrieve umask of another process.
2621 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2623 int *name = (int *)arg1;
2624 u_int namelen = arg2;
2632 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2636 FILEDESC_SLOCK(p->p_fd);
2637 fd_cmask = p->p_fd->fd_cmask;
2638 FILEDESC_SUNLOCK(p->p_fd);
2640 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2645 * This sysctl allows a process to set and retrieve binary osreldate of
2649 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2651 int *name = (int *)arg1;
2652 u_int namelen = arg2;
2654 int flags, error, osrel;
2659 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2662 flags = PGET_HOLD | PGET_NOTWEXIT;
2663 if (req->newptr != NULL)
2664 flags |= PGET_CANDEBUG;
2666 flags |= PGET_CANSEE;
2667 error = pget((pid_t)name[0], flags, &p);
2671 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2675 if (req->newptr != NULL) {
2676 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2691 sysctl_kern_proc_sigtramp(SYSCTL_HANDLER_ARGS)
2693 int *name = (int *)arg1;
2694 u_int namelen = arg2;
2696 struct kinfo_sigtramp kst;
2697 const struct sysentvec *sv;
2699 #ifdef COMPAT_FREEBSD32
2700 struct kinfo_sigtramp32 kst32;
2706 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2710 #ifdef COMPAT_FREEBSD32
2711 if ((req->flags & SCTL_MASK32) != 0) {
2712 bzero(&kst32, sizeof(kst32));
2713 if (SV_PROC_FLAG(p, SV_ILP32)) {
2714 if (sv->sv_sigcode_base != 0) {
2715 kst32.ksigtramp_start = sv->sv_sigcode_base;
2716 kst32.ksigtramp_end = sv->sv_sigcode_base +
2719 kst32.ksigtramp_start = sv->sv_psstrings -
2721 kst32.ksigtramp_end = sv->sv_psstrings;
2725 error = SYSCTL_OUT(req, &kst32, sizeof(kst32));
2729 bzero(&kst, sizeof(kst));
2730 if (sv->sv_sigcode_base != 0) {
2731 kst.ksigtramp_start = (char *)sv->sv_sigcode_base;
2732 kst.ksigtramp_end = (char *)sv->sv_sigcode_base +
2735 kst.ksigtramp_start = (char *)sv->sv_psstrings -
2737 kst.ksigtramp_end = (char *)sv->sv_psstrings;
2740 error = SYSCTL_OUT(req, &kst, sizeof(kst));
2744 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2746 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2747 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2748 "Return entire process table");
2750 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2751 sysctl_kern_proc, "Process table");
2753 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2754 sysctl_kern_proc, "Process table");
2756 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2757 sysctl_kern_proc, "Process table");
2759 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2760 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2762 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2763 sysctl_kern_proc, "Process table");
2765 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2766 sysctl_kern_proc, "Process table");
2768 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2769 sysctl_kern_proc, "Process table");
2771 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2772 sysctl_kern_proc, "Process table");
2774 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2775 sysctl_kern_proc, "Return process table, no threads");
2777 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2778 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2779 sysctl_kern_proc_args, "Process argument list");
2781 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2782 sysctl_kern_proc_env, "Process environment");
2784 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2785 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2787 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2788 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2790 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2791 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2792 "Process syscall vector name (ABI type)");
2794 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2795 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2797 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2798 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2800 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2801 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2803 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2804 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2806 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2807 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2809 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2810 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2812 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2813 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2815 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2816 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2818 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2819 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2820 "Return process table, no threads");
2822 #ifdef COMPAT_FREEBSD7
2823 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2824 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2827 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2828 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2830 #if defined(STACK) || defined(DDB)
2831 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2832 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2835 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2836 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2838 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2839 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2840 "Process resource limits");
2842 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2843 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2844 "Process ps_strings location");
2846 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2847 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2849 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2850 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2851 "Process binary osreldate");
2853 static SYSCTL_NODE(_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD |
2854 CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp,
2855 "Process signal trampoline location");