2 * Copyright (c) 1982, 1986, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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14 * may be used to endorse or promote products derived from this software
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
37 #include "opt_ktrace.h"
38 #include "opt_kstack_pages.h"
39 #include "opt_stack.h"
41 #include <sys/param.h>
42 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/limits.h>
48 #include <sys/loginclass.h>
49 #include <sys/malloc.h>
51 #include <sys/mount.h>
52 #include <sys/mutex.h>
54 #include <sys/ptrace.h>
55 #include <sys/refcount.h>
56 #include <sys/resourcevar.h>
57 #include <sys/rwlock.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_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0);
184 EVENTHANDLER_INVOKE(process_ctor, p);
185 SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0);
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_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0);
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_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0);
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_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0);
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_PROBE(proc, kernel, init, return, p, size, flags, 0, 0);
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)) {
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 /* For proc_realparent. */
795 sx_assert(&proctree_lock, SX_LOCKED);
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 = proc_realparent(p)->p_pid;
926 if (p->p_flag & P_TRACED)
927 kp->ki_tracer = p->p_pptr->p_pid;
932 * Fill in information that is thread specific. Must be called with
933 * target process locked. If 'preferthread' is set, overwrite certain
934 * process-related fields that are maintained for both threads and
938 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
944 PROC_LOCK_ASSERT(p, MA_OWNED);
949 if (td->td_wmesg != NULL)
950 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
952 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
953 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
954 if (TD_ON_LOCK(td)) {
955 kp->ki_kiflag |= KI_LOCKBLOCK;
956 strlcpy(kp->ki_lockname, td->td_lockname,
957 sizeof(kp->ki_lockname));
959 kp->ki_kiflag &= ~KI_LOCKBLOCK;
960 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
963 if (p->p_state == PRS_NORMAL) { /* approximate. */
964 if (TD_ON_RUNQ(td) ||
968 } else if (P_SHOULDSTOP(p)) {
970 } else if (TD_IS_SLEEPING(td)) {
971 kp->ki_stat = SSLEEP;
972 } else if (TD_ON_LOCK(td)) {
977 } else if (p->p_state == PRS_ZOMBIE) {
983 /* Things in the thread */
984 kp->ki_wchan = td->td_wchan;
985 kp->ki_pri.pri_level = td->td_priority;
986 kp->ki_pri.pri_native = td->td_base_pri;
989 * Note: legacy fields; clamp at the old NOCPU value and/or
990 * the maximum u_char CPU value.
992 if (td->td_lastcpu == NOCPU)
993 kp->ki_lastcpu_old = NOCPU_OLD;
994 else if (td->td_lastcpu > MAXCPU_OLD)
995 kp->ki_lastcpu_old = MAXCPU_OLD;
997 kp->ki_lastcpu_old = td->td_lastcpu;
999 if (td->td_oncpu == NOCPU)
1000 kp->ki_oncpu_old = NOCPU_OLD;
1001 else if (td->td_oncpu > MAXCPU_OLD)
1002 kp->ki_oncpu_old = MAXCPU_OLD;
1004 kp->ki_oncpu_old = td->td_oncpu;
1006 kp->ki_lastcpu = td->td_lastcpu;
1007 kp->ki_oncpu = td->td_oncpu;
1008 kp->ki_tdflags = td->td_flags;
1009 kp->ki_tid = td->td_tid;
1010 kp->ki_numthreads = p->p_numthreads;
1011 kp->ki_pcb = td->td_pcb;
1012 kp->ki_kstack = (void *)td->td_kstack;
1013 kp->ki_slptime = (ticks - td->td_slptick) / hz;
1014 kp->ki_pri.pri_class = td->td_pri_class;
1015 kp->ki_pri.pri_user = td->td_user_pri;
1018 rufetchtd(td, &kp->ki_rusage);
1019 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
1020 kp->ki_pctcpu = sched_pctcpu(td);
1021 kp->ki_estcpu = td->td_estcpu;
1022 kp->ki_cow = td->td_cow;
1025 /* We can't get this anymore but ps etc never used it anyway. */
1029 kp->ki_siglist = td->td_siglist;
1030 kp->ki_sigmask = td->td_sigmask;
1037 * Fill in a kinfo_proc structure for the specified process.
1038 * Must be called with the target process locked.
1041 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1044 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1046 fill_kinfo_proc_only(p, kp);
1047 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1048 fill_kinfo_aggregate(p, kp);
1055 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1059 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1062 pstats_fork(struct pstats *src, struct pstats *dst)
1065 bzero(&dst->pstat_startzero,
1066 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1067 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1068 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1072 pstats_free(struct pstats *ps)
1075 free(ps, M_SUBPROC);
1078 static struct proc *
1079 zpfind_locked(pid_t pid)
1083 sx_assert(&allproc_lock, SX_LOCKED);
1084 LIST_FOREACH(p, &zombproc, p_list) {
1085 if (p->p_pid == pid) {
1094 * Locate a zombie process by number
1101 sx_slock(&allproc_lock);
1102 p = zpfind_locked(pid);
1103 sx_sunlock(&allproc_lock);
1107 #ifdef COMPAT_FREEBSD32
1110 * This function is typically used to copy out the kernel address, so
1111 * it can be replaced by assignment of zero.
1113 static inline uint32_t
1114 ptr32_trim(void *ptr)
1118 uptr = (uintptr_t)ptr;
1119 return ((uptr > UINT_MAX) ? 0 : uptr);
1122 #define PTRTRIM_CP(src,dst,fld) \
1123 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1126 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1130 bzero(ki32, sizeof(struct kinfo_proc32));
1131 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1132 CP(*ki, *ki32, ki_layout);
1133 PTRTRIM_CP(*ki, *ki32, ki_args);
1134 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1135 PTRTRIM_CP(*ki, *ki32, ki_addr);
1136 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1137 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1138 PTRTRIM_CP(*ki, *ki32, ki_fd);
1139 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1140 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1141 CP(*ki, *ki32, ki_pid);
1142 CP(*ki, *ki32, ki_ppid);
1143 CP(*ki, *ki32, ki_pgid);
1144 CP(*ki, *ki32, ki_tpgid);
1145 CP(*ki, *ki32, ki_sid);
1146 CP(*ki, *ki32, ki_tsid);
1147 CP(*ki, *ki32, ki_jobc);
1148 CP(*ki, *ki32, ki_tdev);
1149 CP(*ki, *ki32, ki_siglist);
1150 CP(*ki, *ki32, ki_sigmask);
1151 CP(*ki, *ki32, ki_sigignore);
1152 CP(*ki, *ki32, ki_sigcatch);
1153 CP(*ki, *ki32, ki_uid);
1154 CP(*ki, *ki32, ki_ruid);
1155 CP(*ki, *ki32, ki_svuid);
1156 CP(*ki, *ki32, ki_rgid);
1157 CP(*ki, *ki32, ki_svgid);
1158 CP(*ki, *ki32, ki_ngroups);
1159 for (i = 0; i < KI_NGROUPS; i++)
1160 CP(*ki, *ki32, ki_groups[i]);
1161 CP(*ki, *ki32, ki_size);
1162 CP(*ki, *ki32, ki_rssize);
1163 CP(*ki, *ki32, ki_swrss);
1164 CP(*ki, *ki32, ki_tsize);
1165 CP(*ki, *ki32, ki_dsize);
1166 CP(*ki, *ki32, ki_ssize);
1167 CP(*ki, *ki32, ki_xstat);
1168 CP(*ki, *ki32, ki_acflag);
1169 CP(*ki, *ki32, ki_pctcpu);
1170 CP(*ki, *ki32, ki_estcpu);
1171 CP(*ki, *ki32, ki_slptime);
1172 CP(*ki, *ki32, ki_swtime);
1173 CP(*ki, *ki32, ki_cow);
1174 CP(*ki, *ki32, ki_runtime);
1175 TV_CP(*ki, *ki32, ki_start);
1176 TV_CP(*ki, *ki32, ki_childtime);
1177 CP(*ki, *ki32, ki_flag);
1178 CP(*ki, *ki32, ki_kiflag);
1179 CP(*ki, *ki32, ki_traceflag);
1180 CP(*ki, *ki32, ki_stat);
1181 CP(*ki, *ki32, ki_nice);
1182 CP(*ki, *ki32, ki_lock);
1183 CP(*ki, *ki32, ki_rqindex);
1184 CP(*ki, *ki32, ki_oncpu);
1185 CP(*ki, *ki32, ki_lastcpu);
1187 /* XXX TODO: wrap cpu value as appropriate */
1188 CP(*ki, *ki32, ki_oncpu_old);
1189 CP(*ki, *ki32, ki_lastcpu_old);
1191 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1192 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1193 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1194 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1195 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1196 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1197 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1198 CP(*ki, *ki32, ki_tracer);
1199 CP(*ki, *ki32, ki_flag2);
1200 CP(*ki, *ki32, ki_fibnum);
1201 CP(*ki, *ki32, ki_cr_flags);
1202 CP(*ki, *ki32, ki_jid);
1203 CP(*ki, *ki32, ki_numthreads);
1204 CP(*ki, *ki32, ki_tid);
1205 CP(*ki, *ki32, ki_pri);
1206 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1207 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1208 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1209 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1210 PTRTRIM_CP(*ki, *ki32, ki_udata);
1211 CP(*ki, *ki32, ki_sflag);
1212 CP(*ki, *ki32, ki_tdflags);
1217 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1220 struct kinfo_proc ki;
1221 #ifdef COMPAT_FREEBSD32
1222 struct kinfo_proc32 ki32;
1226 PROC_LOCK_ASSERT(p, MA_OWNED);
1227 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1230 fill_kinfo_proc(p, &ki);
1231 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1232 #ifdef COMPAT_FREEBSD32
1233 if ((flags & KERN_PROC_MASK32) != 0) {
1234 freebsd32_kinfo_proc_out(&ki, &ki32);
1235 if (sbuf_bcat(sb, &ki32, sizeof(ki32)) != 0)
1239 if (sbuf_bcat(sb, &ki, sizeof(ki)) != 0)
1242 FOREACH_THREAD_IN_PROC(p, td) {
1243 fill_kinfo_thread(td, &ki, 1);
1244 #ifdef COMPAT_FREEBSD32
1245 if ((flags & KERN_PROC_MASK32) != 0) {
1246 freebsd32_kinfo_proc_out(&ki, &ki32);
1247 if (sbuf_bcat(sb, &ki32, sizeof(ki32)) != 0)
1251 if (sbuf_bcat(sb, &ki, sizeof(ki)) != 0)
1262 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1266 struct kinfo_proc ki;
1272 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1273 error = kern_proc_out(p, &sb, flags);
1274 error2 = sbuf_finish(&sb);
1278 else if (error2 != 0)
1298 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1300 int *name = (int *)arg1;
1301 u_int namelen = arg2;
1303 int flags, doingzomb, oid_number;
1306 oid_number = oidp->oid_number;
1307 if (oid_number != KERN_PROC_ALL &&
1308 (oid_number & KERN_PROC_INC_THREAD) == 0)
1309 flags = KERN_PROC_NOTHREADS;
1312 oid_number &= ~KERN_PROC_INC_THREAD;
1314 #ifdef COMPAT_FREEBSD32
1315 if (req->flags & SCTL_MASK32)
1316 flags |= KERN_PROC_MASK32;
1318 if (oid_number == KERN_PROC_PID) {
1321 error = sysctl_wire_old_buffer(req, 0);
1324 sx_slock(&proctree_lock);
1325 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1327 error = sysctl_out_proc(p, req, flags, 0);
1328 sx_sunlock(&proctree_lock);
1332 switch (oid_number) {
1337 case KERN_PROC_PROC:
1338 if (namelen != 0 && namelen != 1)
1348 /* overestimate by 5 procs */
1349 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1353 error = sysctl_wire_old_buffer(req, 0);
1356 sx_slock(&proctree_lock);
1357 sx_slock(&allproc_lock);
1358 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1360 p = LIST_FIRST(&allproc);
1362 p = LIST_FIRST(&zombproc);
1363 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1365 * Skip embryonic processes.
1368 if (p->p_state == PRS_NEW) {
1372 KASSERT(p->p_ucred != NULL,
1373 ("process credential is NULL for non-NEW proc"));
1375 * Show a user only appropriate processes.
1377 if (p_cansee(curthread, p)) {
1382 * TODO - make more efficient (see notes below).
1385 switch (oid_number) {
1388 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1394 case KERN_PROC_PGRP:
1395 /* could do this by traversing pgrp */
1396 if (p->p_pgrp == NULL ||
1397 p->p_pgrp->pg_id != (pid_t)name[0]) {
1403 case KERN_PROC_RGID:
1404 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1410 case KERN_PROC_SESSION:
1411 if (p->p_session == NULL ||
1412 p->p_session->s_sid != (pid_t)name[0]) {
1419 if ((p->p_flag & P_CONTROLT) == 0 ||
1420 p->p_session == NULL) {
1424 /* XXX proctree_lock */
1425 SESS_LOCK(p->p_session);
1426 if (p->p_session->s_ttyp == NULL ||
1427 tty_udev(p->p_session->s_ttyp) !=
1429 SESS_UNLOCK(p->p_session);
1433 SESS_UNLOCK(p->p_session);
1437 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1443 case KERN_PROC_RUID:
1444 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1450 case KERN_PROC_PROC:
1458 error = sysctl_out_proc(p, req, flags, doingzomb);
1460 sx_sunlock(&allproc_lock);
1461 sx_sunlock(&proctree_lock);
1466 sx_sunlock(&allproc_lock);
1467 sx_sunlock(&proctree_lock);
1472 pargs_alloc(int len)
1476 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1478 refcount_init(&pa->ar_ref, 1);
1479 pa->ar_length = len;
1484 pargs_free(struct pargs *pa)
1491 pargs_hold(struct pargs *pa)
1496 refcount_acquire(&pa->ar_ref);
1500 pargs_drop(struct pargs *pa)
1505 if (refcount_release(&pa->ar_ref))
1510 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1516 iov.iov_base = (caddr_t)buf;
1520 uio.uio_offset = offset;
1521 uio.uio_resid = (ssize_t)len;
1522 uio.uio_segflg = UIO_SYSSPACE;
1523 uio.uio_rw = UIO_READ;
1526 return (proc_rwmem(p, &uio));
1530 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1536 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1538 * Reading the chunk may validly return EFAULT if the string is shorter
1539 * than the chunk and is aligned at the end of the page, assuming the
1540 * next page is not mapped. So if EFAULT is returned do a fallback to
1541 * one byte read loop.
1543 if (error == EFAULT) {
1544 for (i = 0; i < len; i++, buf++, sptr++) {
1545 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1556 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1558 enum proc_vector_type {
1564 #ifdef COMPAT_FREEBSD32
1566 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1567 size_t *vsizep, enum proc_vector_type type)
1569 struct freebsd32_ps_strings pss;
1571 vm_offset_t vptr, ptr;
1572 uint32_t *proc_vector32;
1577 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1583 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1584 vsize = pss.ps_nargvstr;
1585 if (vsize > ARG_MAX)
1587 size = vsize * sizeof(int32_t);
1590 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1591 vsize = pss.ps_nenvstr;
1592 if (vsize > ARG_MAX)
1594 size = vsize * sizeof(int32_t);
1597 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1598 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1601 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1602 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1605 if (aux.a_type == AT_NULL)
1609 if (aux.a_type != AT_NULL)
1612 size = vsize * sizeof(aux);
1615 KASSERT(0, ("Wrong proc vector type: %d", type));
1618 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1619 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1622 if (type == PROC_AUX) {
1623 *proc_vectorp = (char **)proc_vector32;
1627 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1628 for (i = 0; i < (int)vsize; i++)
1629 proc_vector[i] = PTRIN(proc_vector32[i]);
1630 *proc_vectorp = proc_vector;
1633 free(proc_vector32, M_TEMP);
1639 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1640 size_t *vsizep, enum proc_vector_type type)
1642 struct ps_strings pss;
1644 vm_offset_t vptr, ptr;
1649 #ifdef COMPAT_FREEBSD32
1650 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1651 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1653 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1659 vptr = (vm_offset_t)pss.ps_argvstr;
1660 vsize = pss.ps_nargvstr;
1661 if (vsize > ARG_MAX)
1663 size = vsize * sizeof(char *);
1666 vptr = (vm_offset_t)pss.ps_envstr;
1667 vsize = pss.ps_nenvstr;
1668 if (vsize > ARG_MAX)
1670 size = vsize * sizeof(char *);
1674 * The aux array is just above env array on the stack. Check
1675 * that the address is naturally aligned.
1677 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1679 #if __ELF_WORD_SIZE == 64
1680 if (vptr % sizeof(uint64_t) != 0)
1682 if (vptr % sizeof(uint32_t) != 0)
1686 * We count the array size reading the aux vectors from the
1687 * stack until AT_NULL vector is returned. So (to keep the code
1688 * simple) we read the process stack twice: the first time here
1689 * to find the size and the second time when copying the vectors
1690 * to the allocated proc_vector.
1692 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1693 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1696 if (aux.a_type == AT_NULL)
1701 * If the PROC_AUXV_MAX entries are iterated over, and we have
1702 * not reached AT_NULL, it is most likely we are reading wrong
1703 * data: either the process doesn't have auxv array or data has
1704 * been modified. Return the error in this case.
1706 if (aux.a_type != AT_NULL)
1709 size = vsize * sizeof(aux);
1712 KASSERT(0, ("Wrong proc vector type: %d", type));
1713 return (EINVAL); /* In case we are built without INVARIANTS. */
1715 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1716 if (proc_vector == NULL)
1718 error = proc_read_mem(td, p, vptr, proc_vector, size);
1720 free(proc_vector, M_TEMP);
1723 *proc_vectorp = proc_vector;
1729 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1732 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1733 enum proc_vector_type type)
1735 size_t done, len, nchr, vsize;
1737 char **proc_vector, *sptr;
1738 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1740 PROC_ASSERT_HELD(p);
1743 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1745 nchr = 2 * (PATH_MAX + ARG_MAX);
1747 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1750 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1752 * The program may have scribbled into its argv array, e.g. to
1753 * remove some arguments. If that has happened, break out
1754 * before trying to read from NULL.
1756 if (proc_vector[i] == NULL)
1758 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1759 error = proc_read_string(td, p, sptr, pss_string,
1760 sizeof(pss_string));
1763 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1764 if (done + len >= nchr)
1765 len = nchr - done - 1;
1766 sbuf_bcat(sb, pss_string, len);
1767 if (len != GET_PS_STRINGS_CHUNK_SZ)
1769 done += GET_PS_STRINGS_CHUNK_SZ;
1771 sbuf_bcat(sb, "", 1);
1775 free(proc_vector, M_TEMP);
1780 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1783 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1787 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1790 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1794 proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb)
1800 error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX);
1802 #ifdef COMPAT_FREEBSD32
1803 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1804 size = vsize * sizeof(Elf32_Auxinfo);
1807 size = vsize * sizeof(Elf_Auxinfo);
1808 if (sbuf_bcat(sb, auxv, size) != 0)
1816 * This sysctl allows a process to retrieve the argument list or process
1817 * title for another process without groping around in the address space
1818 * of the other process. It also allow a process to set its own "process
1819 * title to a string of its own choice.
1822 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1824 int *name = (int *)arg1;
1825 u_int namelen = arg2;
1826 struct pargs *newpa, *pa;
1829 int flags, error = 0, error2;
1834 flags = PGET_CANSEE;
1835 if (req->newptr != NULL)
1836 flags |= PGET_ISCURRENT;
1837 error = pget((pid_t)name[0], flags, &p);
1845 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1847 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1850 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1851 error = proc_getargv(curthread, p, &sb);
1852 error2 = sbuf_finish(&sb);
1855 if (error == 0 && error2 != 0)
1860 if (error != 0 || req->newptr == NULL)
1863 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1865 newpa = pargs_alloc(req->newlen);
1866 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1880 * This sysctl allows a process to retrieve environment of another process.
1883 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1885 int *name = (int *)arg1;
1886 u_int namelen = arg2;
1894 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1897 if ((p->p_flag & P_SYSTEM) != 0) {
1902 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1903 error = proc_getenvv(curthread, p, &sb);
1904 error2 = sbuf_finish(&sb);
1907 return (error != 0 ? error : error2);
1911 * This sysctl allows a process to retrieve ELF auxiliary vector of
1915 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1917 int *name = (int *)arg1;
1918 u_int namelen = arg2;
1926 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1929 if ((p->p_flag & P_SYSTEM) != 0) {
1933 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1934 error = proc_getauxv(curthread, p, &sb);
1935 error2 = sbuf_finish(&sb);
1938 return (error != 0 ? error : error2);
1942 * This sysctl allows a process to retrieve the path of the executable for
1943 * itself or another process.
1946 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1948 pid_t *pidp = (pid_t *)arg1;
1949 unsigned int arglen = arg2;
1952 char *retbuf, *freebuf;
1957 if (*pidp == -1) { /* -1 means this process */
1958 p = req->td->td_proc;
1960 error = pget(*pidp, PGET_CANSEE, &p);
1974 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1978 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1979 free(freebuf, M_TEMP);
1984 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1997 error = pget((pid_t)name[0], PGET_CANSEE, &p);
2000 sv_name = p->p_sysent->sv_name;
2002 return (sysctl_handle_string(oidp, sv_name, 0, req));
2005 #ifdef KINFO_OVMENTRY_SIZE
2006 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
2009 #ifdef COMPAT_FREEBSD7
2011 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
2013 vm_map_entry_t entry, tmp_entry;
2014 unsigned int last_timestamp;
2015 char *fullpath, *freepath;
2016 struct kinfo_ovmentry *kve;
2026 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2029 vm = vmspace_acquire_ref(p);
2034 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2037 vm_map_lock_read(map);
2038 for (entry = map->header.next; entry != &map->header;
2039 entry = entry->next) {
2040 vm_object_t obj, tobj, lobj;
2043 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2046 bzero(kve, sizeof(*kve));
2047 kve->kve_structsize = sizeof(*kve);
2049 kve->kve_private_resident = 0;
2050 obj = entry->object.vm_object;
2052 VM_OBJECT_RLOCK(obj);
2053 if (obj->shadow_count == 1)
2054 kve->kve_private_resident =
2055 obj->resident_page_count;
2057 kve->kve_resident = 0;
2058 addr = entry->start;
2059 while (addr < entry->end) {
2060 if (pmap_extract(map->pmap, addr))
2061 kve->kve_resident++;
2065 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2067 VM_OBJECT_RLOCK(tobj);
2069 VM_OBJECT_RUNLOCK(lobj);
2073 kve->kve_start = (void*)entry->start;
2074 kve->kve_end = (void*)entry->end;
2075 kve->kve_offset = (off_t)entry->offset;
2077 if (entry->protection & VM_PROT_READ)
2078 kve->kve_protection |= KVME_PROT_READ;
2079 if (entry->protection & VM_PROT_WRITE)
2080 kve->kve_protection |= KVME_PROT_WRITE;
2081 if (entry->protection & VM_PROT_EXECUTE)
2082 kve->kve_protection |= KVME_PROT_EXEC;
2084 if (entry->eflags & MAP_ENTRY_COW)
2085 kve->kve_flags |= KVME_FLAG_COW;
2086 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2087 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2088 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2089 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2091 last_timestamp = map->timestamp;
2092 vm_map_unlock_read(map);
2094 kve->kve_fileid = 0;
2100 switch (lobj->type) {
2102 kve->kve_type = KVME_TYPE_DEFAULT;
2105 kve->kve_type = KVME_TYPE_VNODE;
2110 kve->kve_type = KVME_TYPE_SWAP;
2113 kve->kve_type = KVME_TYPE_DEVICE;
2116 kve->kve_type = KVME_TYPE_PHYS;
2119 kve->kve_type = KVME_TYPE_DEAD;
2122 kve->kve_type = KVME_TYPE_SG;
2125 kve->kve_type = KVME_TYPE_UNKNOWN;
2129 VM_OBJECT_RUNLOCK(lobj);
2131 kve->kve_ref_count = obj->ref_count;
2132 kve->kve_shadow_count = obj->shadow_count;
2133 VM_OBJECT_RUNLOCK(obj);
2135 vn_fullpath(curthread, vp, &fullpath,
2137 cred = curthread->td_ucred;
2138 vn_lock(vp, LK_SHARED | LK_RETRY);
2139 if (VOP_GETATTR(vp, &va, cred) == 0) {
2140 kve->kve_fileid = va.va_fileid;
2141 kve->kve_fsid = va.va_fsid;
2146 kve->kve_type = KVME_TYPE_NONE;
2147 kve->kve_ref_count = 0;
2148 kve->kve_shadow_count = 0;
2151 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2152 if (freepath != NULL)
2153 free(freepath, M_TEMP);
2155 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2156 vm_map_lock_read(map);
2159 if (last_timestamp != map->timestamp) {
2160 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2164 vm_map_unlock_read(map);
2170 #endif /* COMPAT_FREEBSD7 */
2172 #ifdef KINFO_VMENTRY_SIZE
2173 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2177 kern_proc_vmmap_resident(vm_map_t map, vm_map_entry_t entry,
2178 struct kinfo_vmentry *kve)
2180 vm_object_t obj, tobj;
2183 vm_paddr_t locked_pa;
2184 vm_pindex_t pi, pi_adv, pindex;
2187 obj = entry->object.vm_object;
2188 addr = entry->start;
2190 pi = OFF_TO_IDX(entry->offset);
2191 for (; addr < entry->end; addr += IDX_TO_OFF(pi_adv), pi += pi_adv) {
2192 if (m_adv != NULL) {
2195 pi_adv = OFF_TO_IDX(entry->end - addr);
2197 for (tobj = obj;; tobj = tobj->backing_object) {
2198 m = vm_page_find_least(tobj, pindex);
2200 if (m->pindex == pindex)
2202 if (pi_adv > m->pindex - pindex) {
2203 pi_adv = m->pindex - pindex;
2207 if (tobj->backing_object == NULL)
2209 pindex += OFF_TO_IDX(tobj->
2210 backing_object_offset);
2214 if (m->psind != 0 && addr + pagesizes[1] <= entry->end &&
2215 (addr & (pagesizes[1] - 1)) == 0 &&
2216 (pmap_mincore(map->pmap, addr, &locked_pa) &
2217 MINCORE_SUPER) != 0) {
2218 kve->kve_flags |= KVME_FLAG_SUPER;
2219 pi_adv = OFF_TO_IDX(pagesizes[1]);
2222 * We do not test the found page on validity.
2223 * Either the page is busy and being paged in,
2224 * or it was invalidated. The first case
2225 * should be counted as resident, the second
2226 * is not so clear; we do account both.
2230 kve->kve_resident += pi_adv;
2233 PA_UNLOCK_COND(locked_pa);
2237 * Must be called with the process locked and will return unlocked.
2240 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2242 vm_map_entry_t entry, tmp_entry;
2245 vm_object_t obj, tobj, lobj;
2246 char *fullpath, *freepath;
2247 struct kinfo_vmentry *kve;
2252 unsigned int last_timestamp;
2255 PROC_LOCK_ASSERT(p, MA_OWNED);
2259 vm = vmspace_acquire_ref(p);
2264 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2268 vm_map_lock_read(map);
2269 for (entry = map->header.next; entry != &map->header;
2270 entry = entry->next) {
2271 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2275 bzero(kve, sizeof(*kve));
2276 obj = entry->object.vm_object;
2278 for (tobj = obj; tobj != NULL;
2279 tobj = tobj->backing_object) {
2280 VM_OBJECT_RLOCK(tobj);
2283 if (obj->backing_object == NULL)
2284 kve->kve_private_resident =
2285 obj->resident_page_count;
2286 if (!vmmap_skip_res_cnt)
2287 kern_proc_vmmap_resident(map, entry, kve);
2288 for (tobj = obj; tobj != NULL;
2289 tobj = tobj->backing_object) {
2290 if (tobj != obj && tobj != lobj)
2291 VM_OBJECT_RUNLOCK(tobj);
2297 kve->kve_start = entry->start;
2298 kve->kve_end = entry->end;
2299 kve->kve_offset = entry->offset;
2301 if (entry->protection & VM_PROT_READ)
2302 kve->kve_protection |= KVME_PROT_READ;
2303 if (entry->protection & VM_PROT_WRITE)
2304 kve->kve_protection |= KVME_PROT_WRITE;
2305 if (entry->protection & VM_PROT_EXECUTE)
2306 kve->kve_protection |= KVME_PROT_EXEC;
2308 if (entry->eflags & MAP_ENTRY_COW)
2309 kve->kve_flags |= KVME_FLAG_COW;
2310 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2311 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2312 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2313 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2314 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2315 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2316 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2317 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2319 last_timestamp = map->timestamp;
2320 vm_map_unlock_read(map);
2326 switch (lobj->type) {
2328 kve->kve_type = KVME_TYPE_DEFAULT;
2331 kve->kve_type = KVME_TYPE_VNODE;
2336 kve->kve_type = KVME_TYPE_SWAP;
2339 kve->kve_type = KVME_TYPE_DEVICE;
2342 kve->kve_type = KVME_TYPE_PHYS;
2345 kve->kve_type = KVME_TYPE_DEAD;
2348 kve->kve_type = KVME_TYPE_SG;
2350 case OBJT_MGTDEVICE:
2351 kve->kve_type = KVME_TYPE_MGTDEVICE;
2354 kve->kve_type = KVME_TYPE_UNKNOWN;
2358 VM_OBJECT_RUNLOCK(lobj);
2360 kve->kve_ref_count = obj->ref_count;
2361 kve->kve_shadow_count = obj->shadow_count;
2362 VM_OBJECT_RUNLOCK(obj);
2364 vn_fullpath(curthread, vp, &fullpath,
2366 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2367 cred = curthread->td_ucred;
2368 vn_lock(vp, LK_SHARED | LK_RETRY);
2369 if (VOP_GETATTR(vp, &va, cred) == 0) {
2370 kve->kve_vn_fileid = va.va_fileid;
2371 kve->kve_vn_fsid = va.va_fsid;
2373 MAKEIMODE(va.va_type, va.va_mode);
2374 kve->kve_vn_size = va.va_size;
2375 kve->kve_vn_rdev = va.va_rdev;
2376 kve->kve_status = KF_ATTR_VALID;
2381 kve->kve_type = KVME_TYPE_NONE;
2382 kve->kve_ref_count = 0;
2383 kve->kve_shadow_count = 0;
2386 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2387 if (freepath != NULL)
2388 free(freepath, M_TEMP);
2390 /* Pack record size down */
2391 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2392 strlen(kve->kve_path) + 1;
2393 kve->kve_structsize = roundup(kve->kve_structsize,
2395 if (sbuf_bcat(sb, kve, kve->kve_structsize) != 0)
2397 vm_map_lock_read(map);
2400 if (last_timestamp != map->timestamp) {
2401 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2405 vm_map_unlock_read(map);
2413 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2417 int error, error2, *name;
2420 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2421 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2426 error = kern_proc_vmmap_out(p, &sb);
2427 error2 = sbuf_finish(&sb);
2429 return (error != 0 ? error : error2);
2432 #if defined(STACK) || defined(DDB)
2434 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2436 struct kinfo_kstack *kkstp;
2437 int error, i, *name, numthreads;
2438 lwpid_t *lwpidarray;
2445 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2449 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2450 st = stack_create();
2456 if (numthreads < p->p_numthreads) {
2457 if (lwpidarray != NULL) {
2458 free(lwpidarray, M_TEMP);
2461 numthreads = p->p_numthreads;
2463 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2471 * XXXRW: During the below loop, execve(2) and countless other sorts
2472 * of changes could have taken place. Should we check to see if the
2473 * vmspace has been replaced, or the like, in order to prevent
2474 * giving a snapshot that spans, say, execve(2), with some threads
2475 * before and some after? Among other things, the credentials could
2476 * have changed, in which case the right to extract debug info might
2477 * no longer be assured.
2479 FOREACH_THREAD_IN_PROC(p, td) {
2480 KASSERT(i < numthreads,
2481 ("sysctl_kern_proc_kstack: numthreads"));
2482 lwpidarray[i] = td->td_tid;
2486 for (i = 0; i < numthreads; i++) {
2487 td = thread_find(p, lwpidarray[i]);
2491 bzero(kkstp, sizeof(*kkstp));
2492 (void)sbuf_new(&sb, kkstp->kkst_trace,
2493 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2495 kkstp->kkst_tid = td->td_tid;
2496 if (TD_IS_SWAPPED(td))
2497 kkstp->kkst_state = KKST_STATE_SWAPPED;
2498 else if (TD_IS_RUNNING(td))
2499 kkstp->kkst_state = KKST_STATE_RUNNING;
2501 kkstp->kkst_state = KKST_STATE_STACKOK;
2502 stack_save_td(st, td);
2506 stack_sbuf_print(&sb, st);
2509 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2516 if (lwpidarray != NULL)
2517 free(lwpidarray, M_TEMP);
2519 free(kkstp, M_TEMP);
2525 * This sysctl allows a process to retrieve the full list of groups from
2526 * itself or another process.
2529 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2531 pid_t *pidp = (pid_t *)arg1;
2532 unsigned int arglen = arg2;
2539 if (*pidp == -1) { /* -1 means this process */
2540 p = req->td->td_proc;
2543 error = pget(*pidp, PGET_CANSEE, &p);
2548 cred = crhold(p->p_ucred);
2551 error = SYSCTL_OUT(req, cred->cr_groups,
2552 cred->cr_ngroups * sizeof(gid_t));
2558 * This sysctl allows a process to retrieve or/and set the resource limit for
2562 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2564 int *name = (int *)arg1;
2565 u_int namelen = arg2;
2574 which = (u_int)name[1];
2575 if (which >= RLIM_NLIMITS)
2578 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2581 flags = PGET_HOLD | PGET_NOTWEXIT;
2582 if (req->newptr != NULL)
2583 flags |= PGET_CANDEBUG;
2585 flags |= PGET_CANSEE;
2586 error = pget((pid_t)name[0], flags, &p);
2593 if (req->oldptr != NULL) {
2595 lim_rlimit(p, which, &rlim);
2598 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2605 if (req->newptr != NULL) {
2606 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2608 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2617 * This sysctl allows a process to retrieve ps_strings structure location of
2621 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2623 int *name = (int *)arg1;
2624 u_int namelen = arg2;
2626 vm_offset_t ps_strings;
2628 #ifdef COMPAT_FREEBSD32
2629 uint32_t ps_strings32;
2635 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2638 #ifdef COMPAT_FREEBSD32
2639 if ((req->flags & SCTL_MASK32) != 0) {
2641 * We return 0 if the 32 bit emulation request is for a 64 bit
2644 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2645 PTROUT(p->p_sysent->sv_psstrings) : 0;
2647 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2651 ps_strings = p->p_sysent->sv_psstrings;
2653 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2658 * This sysctl allows a process to retrieve umask of another process.
2661 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2663 int *name = (int *)arg1;
2664 u_int namelen = arg2;
2672 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2676 FILEDESC_SLOCK(p->p_fd);
2677 fd_cmask = p->p_fd->fd_cmask;
2678 FILEDESC_SUNLOCK(p->p_fd);
2680 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2685 * This sysctl allows a process to set and retrieve binary osreldate of
2689 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2691 int *name = (int *)arg1;
2692 u_int namelen = arg2;
2694 int flags, error, osrel;
2699 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2702 flags = PGET_HOLD | PGET_NOTWEXIT;
2703 if (req->newptr != NULL)
2704 flags |= PGET_CANDEBUG;
2706 flags |= PGET_CANSEE;
2707 error = pget((pid_t)name[0], flags, &p);
2711 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2715 if (req->newptr != NULL) {
2716 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2731 sysctl_kern_proc_sigtramp(SYSCTL_HANDLER_ARGS)
2733 int *name = (int *)arg1;
2734 u_int namelen = arg2;
2736 struct kinfo_sigtramp kst;
2737 const struct sysentvec *sv;
2739 #ifdef COMPAT_FREEBSD32
2740 struct kinfo_sigtramp32 kst32;
2746 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2750 #ifdef COMPAT_FREEBSD32
2751 if ((req->flags & SCTL_MASK32) != 0) {
2752 bzero(&kst32, sizeof(kst32));
2753 if (SV_PROC_FLAG(p, SV_ILP32)) {
2754 if (sv->sv_sigcode_base != 0) {
2755 kst32.ksigtramp_start = sv->sv_sigcode_base;
2756 kst32.ksigtramp_end = sv->sv_sigcode_base +
2759 kst32.ksigtramp_start = sv->sv_psstrings -
2761 kst32.ksigtramp_end = sv->sv_psstrings;
2765 error = SYSCTL_OUT(req, &kst32, sizeof(kst32));
2769 bzero(&kst, sizeof(kst));
2770 if (sv->sv_sigcode_base != 0) {
2771 kst.ksigtramp_start = (char *)sv->sv_sigcode_base;
2772 kst.ksigtramp_end = (char *)sv->sv_sigcode_base +
2775 kst.ksigtramp_start = (char *)sv->sv_psstrings -
2777 kst.ksigtramp_end = (char *)sv->sv_psstrings;
2780 error = SYSCTL_OUT(req, &kst, sizeof(kst));
2784 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2786 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2787 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2788 "Return entire process table");
2790 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2791 sysctl_kern_proc, "Process table");
2793 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2794 sysctl_kern_proc, "Process table");
2796 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2797 sysctl_kern_proc, "Process table");
2799 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2800 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2802 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2803 sysctl_kern_proc, "Process table");
2805 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2806 sysctl_kern_proc, "Process table");
2808 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2809 sysctl_kern_proc, "Process table");
2811 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2812 sysctl_kern_proc, "Process table");
2814 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2815 sysctl_kern_proc, "Return process table, no threads");
2817 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2818 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2819 sysctl_kern_proc_args, "Process argument list");
2821 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2822 sysctl_kern_proc_env, "Process environment");
2824 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2825 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2827 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2828 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2830 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2831 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2832 "Process syscall vector name (ABI type)");
2834 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2835 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2837 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2838 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2840 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2841 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2843 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2844 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2846 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2847 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2849 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2850 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2852 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2853 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2855 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2856 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2858 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2859 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2860 "Return process table, no threads");
2862 #ifdef COMPAT_FREEBSD7
2863 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2864 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2867 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2868 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2870 #if defined(STACK) || defined(DDB)
2871 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2872 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2875 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2876 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2878 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2879 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2880 "Process resource limits");
2882 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2883 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2884 "Process ps_strings location");
2886 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2887 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2889 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2890 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2891 "Process binary osreldate");
2893 static SYSCTL_NODE(_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD |
2894 CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp,
2895 "Process signal trampoline location");