2 * Copyright (c) 1982, 1986, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
37 #include "opt_kdtrace.h"
38 #include "opt_ktrace.h"
39 #include "opt_kstack_pages.h"
40 #include "opt_stack.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/kernel.h>
47 #include <sys/limits.h>
49 #include <sys/loginclass.h>
50 #include <sys/malloc.h>
52 #include <sys/mount.h>
53 #include <sys/mutex.h>
55 #include <sys/ptrace.h>
56 #include <sys/refcount.h>
57 #include <sys/resourcevar.h>
59 #include <sys/sysent.h>
60 #include <sys/sched.h>
62 #include <sys/stack.h>
64 #include <sys/sysctl.h>
65 #include <sys/filedesc.h>
67 #include <sys/signalvar.h>
72 #include <sys/vnode.h>
73 #include <sys/eventhandler.h>
80 #include <vm/vm_param.h>
81 #include <vm/vm_extern.h>
83 #include <vm/vm_map.h>
84 #include <vm/vm_object.h>
85 #include <vm/vm_page.h>
88 #ifdef COMPAT_FREEBSD32
89 #include <compat/freebsd32/freebsd32.h>
90 #include <compat/freebsd32/freebsd32_util.h>
93 SDT_PROVIDER_DEFINE(proc);
94 SDT_PROBE_DEFINE4(proc, kernel, ctor, entry, entry, "struct proc *", "int",
96 SDT_PROBE_DEFINE4(proc, kernel, ctor, return, return, "struct proc *", "int",
98 SDT_PROBE_DEFINE4(proc, kernel, dtor, entry, entry, "struct proc *", "int",
99 "void *", "struct thread *");
100 SDT_PROBE_DEFINE3(proc, kernel, dtor, return, return, "struct proc *", "int",
102 SDT_PROBE_DEFINE3(proc, kernel, init, entry, entry, "struct proc *", "int",
104 SDT_PROBE_DEFINE3(proc, kernel, init, return, 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");
145 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
146 #ifdef COMPAT_FREEBSD32
147 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
151 * Initialize global process hashing structures.
157 sx_init(&allproc_lock, "allproc");
158 sx_init(&proctree_lock, "proctree");
159 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
161 LIST_INIT(&zombproc);
162 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
163 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
164 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
165 proc_ctor, proc_dtor, proc_init, proc_fini,
166 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
171 * Prepare a proc for use.
174 proc_ctor(void *mem, int size, void *arg, int flags)
178 p = (struct proc *)mem;
179 SDT_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0);
180 EVENTHANDLER_INVOKE(process_ctor, p);
181 SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0);
186 * Reclaim a proc after use.
189 proc_dtor(void *mem, int size, void *arg)
194 /* INVARIANTS checks go here */
195 p = (struct proc *)mem;
196 td = FIRST_THREAD_IN_PROC(p);
197 SDT_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0);
200 KASSERT((p->p_numthreads == 1),
201 ("bad number of threads in exiting process"));
202 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr"));
204 /* Free all OSD associated to this thread. */
207 EVENTHANDLER_INVOKE(process_dtor, p);
208 if (p->p_ksi != NULL)
209 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue"));
210 SDT_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0);
214 * Initialize type-stable parts of a proc (when newly created).
217 proc_init(void *mem, int size, int flags)
221 p = (struct proc *)mem;
222 SDT_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0);
223 p->p_sched = (struct p_sched *)&p[1];
224 bzero(&p->p_mtx, sizeof(struct mtx));
225 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
226 mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE);
227 cv_init(&p->p_pwait, "ppwait");
228 cv_init(&p->p_dbgwait, "dbgwait");
229 TAILQ_INIT(&p->p_threads); /* all threads in proc */
230 EVENTHANDLER_INVOKE(process_init, p);
231 p->p_stats = pstats_alloc();
232 SDT_PROBE(proc, kernel, init, return, p, size, flags, 0, 0);
237 * UMA should ensure that this function is never called.
238 * Freeing a proc structure would violate type stability.
241 proc_fini(void *mem, int size)
246 p = (struct proc *)mem;
247 EVENTHANDLER_INVOKE(process_fini, p);
248 pstats_free(p->p_stats);
249 thread_free(FIRST_THREAD_IN_PROC(p));
250 mtx_destroy(&p->p_mtx);
251 if (p->p_ksi != NULL)
252 ksiginfo_free(p->p_ksi);
254 panic("proc reclaimed");
259 * Is p an inferior of the current process?
263 register struct proc *p;
266 sx_assert(&proctree_lock, SX_LOCKED);
267 for (; p != curproc; p = p->p_pptr)
274 pfind_locked(pid_t pid)
278 sx_assert(&allproc_lock, SX_LOCKED);
279 LIST_FOREACH(p, PIDHASH(pid), p_hash) {
280 if (p->p_pid == pid) {
282 if (p->p_state == PRS_NEW) {
293 * Locate a process by number; return only "live" processes -- i.e., neither
294 * zombies nor newly born but incompletely initialized processes. By not
295 * returning processes in the PRS_NEW state, we allow callers to avoid
296 * testing for that condition to avoid dereferencing p_ucred, et al.
303 sx_slock(&allproc_lock);
304 p = pfind_locked(pid);
305 sx_sunlock(&allproc_lock);
310 pfind_tid_locked(pid_t tid)
315 sx_assert(&allproc_lock, SX_LOCKED);
316 FOREACH_PROC_IN_SYSTEM(p) {
318 if (p->p_state == PRS_NEW) {
322 FOREACH_THREAD_IN_PROC(p, td) {
323 if (td->td_tid == tid)
333 * Locate a process group by number.
334 * The caller must hold proctree_lock.
340 register struct pgrp *pgrp;
342 sx_assert(&proctree_lock, SX_LOCKED);
344 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
345 if (pgrp->pg_id == pgid) {
354 * Locate process and do additional manipulations, depending on flags.
357 pget(pid_t pid, int flags, struct proc **pp)
362 sx_slock(&allproc_lock);
363 if (pid <= PID_MAX) {
364 p = pfind_locked(pid);
365 if (p == NULL && (flags & PGET_NOTWEXIT) == 0)
366 p = zpfind_locked(pid);
367 } else if ((flags & PGET_NOTID) == 0) {
368 p = pfind_tid_locked(pid);
372 sx_sunlock(&allproc_lock);
375 if ((flags & PGET_CANSEE) != 0) {
376 error = p_cansee(curthread, p);
380 if ((flags & PGET_CANDEBUG) != 0) {
381 error = p_candebug(curthread, p);
385 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
389 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
393 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
395 * XXXRW: Not clear ESRCH is the right error during proc
401 if ((flags & PGET_HOLD) != 0) {
413 * Create a new process group.
414 * pgid must be equal to the pid of p.
415 * Begin a new session if required.
418 enterpgrp(p, pgid, pgrp, sess)
419 register struct proc *p;
422 struct session *sess;
425 sx_assert(&proctree_lock, SX_XLOCKED);
427 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
428 KASSERT(p->p_pid == pgid,
429 ("enterpgrp: new pgrp and pid != pgid"));
430 KASSERT(pgfind(pgid) == NULL,
431 ("enterpgrp: pgrp with pgid exists"));
432 KASSERT(!SESS_LEADER(p),
433 ("enterpgrp: session leader attempted setpgrp"));
435 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
441 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
443 p->p_flag &= ~P_CONTROLT;
447 sess->s_sid = p->p_pid;
448 refcount_init(&sess->s_count, 1);
449 sess->s_ttyvp = NULL;
450 sess->s_ttydp = NULL;
452 bcopy(p->p_session->s_login, sess->s_login,
453 sizeof(sess->s_login));
454 pgrp->pg_session = sess;
455 KASSERT(p == curproc,
456 ("enterpgrp: mksession and p != curproc"));
458 pgrp->pg_session = p->p_session;
459 sess_hold(pgrp->pg_session);
463 LIST_INIT(&pgrp->pg_members);
466 * As we have an exclusive lock of proctree_lock,
467 * this should not deadlock.
469 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
471 SLIST_INIT(&pgrp->pg_sigiolst);
474 doenterpgrp(p, pgrp);
480 * Move p to an existing process group
483 enterthispgrp(p, pgrp)
484 register struct proc *p;
488 sx_assert(&proctree_lock, SX_XLOCKED);
489 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
490 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
491 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
492 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
493 KASSERT(pgrp->pg_session == p->p_session,
494 ("%s: pgrp's session %p, p->p_session %p.\n",
498 KASSERT(pgrp != p->p_pgrp,
499 ("%s: p belongs to pgrp.", __func__));
501 doenterpgrp(p, pgrp);
507 * Move p to a process group
514 struct pgrp *savepgrp;
516 sx_assert(&proctree_lock, SX_XLOCKED);
517 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
518 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
519 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
520 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
522 savepgrp = p->p_pgrp;
525 * Adjust eligibility of affected pgrps to participate in job control.
526 * Increment eligibility counts before decrementing, otherwise we
527 * could reach 0 spuriously during the first call.
530 fixjobc(p, p->p_pgrp, 0);
535 LIST_REMOVE(p, p_pglist);
538 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
539 PGRP_UNLOCK(savepgrp);
541 if (LIST_EMPTY(&savepgrp->pg_members))
546 * remove process from process group
550 register struct proc *p;
552 struct pgrp *savepgrp;
554 sx_assert(&proctree_lock, SX_XLOCKED);
555 savepgrp = p->p_pgrp;
558 LIST_REMOVE(p, p_pglist);
561 PGRP_UNLOCK(savepgrp);
562 if (LIST_EMPTY(&savepgrp->pg_members))
568 * delete a process group
572 register struct pgrp *pgrp;
574 struct session *savesess;
577 sx_assert(&proctree_lock, SX_XLOCKED);
578 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
579 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
582 * Reset any sigio structures pointing to us as a result of
583 * F_SETOWN with our pgid.
585 funsetownlst(&pgrp->pg_sigiolst);
588 tp = pgrp->pg_session->s_ttyp;
589 LIST_REMOVE(pgrp, pg_hash);
590 savesess = pgrp->pg_session;
593 /* Remove the reference to the pgrp before deallocating it. */
596 tty_rel_pgrp(tp, pgrp);
599 mtx_destroy(&pgrp->pg_mtx);
601 sess_release(savesess);
605 pgadjustjobc(pgrp, entering)
615 if (pgrp->pg_jobc == 0)
622 * Adjust pgrp jobc counters when specified process changes process group.
623 * We count the number of processes in each process group that "qualify"
624 * the group for terminal job control (those with a parent in a different
625 * process group of the same session). If that count reaches zero, the
626 * process group becomes orphaned. Check both the specified process'
627 * process group and that of its children.
628 * entering == 0 => p is leaving specified group.
629 * entering == 1 => p is entering specified group.
632 fixjobc(p, pgrp, entering)
633 register struct proc *p;
634 register struct pgrp *pgrp;
637 register struct pgrp *hispgrp;
638 register struct session *mysession;
640 sx_assert(&proctree_lock, SX_LOCKED);
641 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
642 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
643 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
646 * Check p's parent to see whether p qualifies its own process
647 * group; if so, adjust count for p's process group.
649 mysession = pgrp->pg_session;
650 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
651 hispgrp->pg_session == mysession)
652 pgadjustjobc(pgrp, entering);
655 * Check this process' children to see whether they qualify
656 * their process groups; if so, adjust counts for children's
659 LIST_FOREACH(p, &p->p_children, p_sibling) {
661 if (hispgrp == pgrp ||
662 hispgrp->pg_session != mysession)
665 if (p->p_state == PRS_ZOMBIE) {
670 pgadjustjobc(hispgrp, entering);
675 * A process group has become orphaned;
676 * if there are any stopped processes in the group,
677 * hang-up all process in that group.
683 register struct proc *p;
685 PGRP_LOCK_ASSERT(pg, MA_OWNED);
687 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
689 if (P_SHOULDSTOP(p)) {
691 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
693 kern_psignal(p, SIGHUP);
694 kern_psignal(p, SIGCONT);
704 sess_hold(struct session *s)
707 refcount_acquire(&s->s_count);
711 sess_release(struct session *s)
714 if (refcount_release(&s->s_count)) {
715 if (s->s_ttyp != NULL) {
717 tty_rel_sess(s->s_ttyp, s);
719 mtx_destroy(&s->s_mtx);
728 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
730 register struct pgrp *pgrp;
731 register struct proc *p;
734 for (i = 0; i <= pgrphash; i++) {
735 if (!LIST_EMPTY(&pgrphashtbl[i])) {
736 printf("\tindx %d\n", i);
737 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
739 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
740 (void *)pgrp, (long)pgrp->pg_id,
741 (void *)pgrp->pg_session,
742 pgrp->pg_session->s_count,
743 (void *)LIST_FIRST(&pgrp->pg_members));
744 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
745 printf("\t\tpid %ld addr %p pgrp %p\n",
746 (long)p->p_pid, (void *)p,
756 * Calculate the kinfo_proc members which contain process-wide
758 * Must be called with the target process locked.
761 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
765 PROC_LOCK_ASSERT(p, MA_OWNED);
769 FOREACH_THREAD_IN_PROC(p, td) {
771 kp->ki_pctcpu += sched_pctcpu(td);
772 kp->ki_estcpu += td->td_estcpu;
778 * Clear kinfo_proc and fill in any information that is common
779 * to all threads in the process.
780 * Must be called with the target process locked.
783 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
791 PROC_LOCK_ASSERT(p, MA_OWNED);
792 bzero(kp, sizeof(*kp));
794 kp->ki_structsize = sizeof(*kp);
796 kp->ki_addr =/* p->p_addr; */0; /* XXX */
797 kp->ki_args = p->p_args;
798 kp->ki_textvp = p->p_textvp;
800 kp->ki_tracep = p->p_tracevp;
801 kp->ki_traceflag = p->p_traceflag;
804 kp->ki_vmspace = p->p_vmspace;
805 kp->ki_flag = p->p_flag;
808 kp->ki_uid = cred->cr_uid;
809 kp->ki_ruid = cred->cr_ruid;
810 kp->ki_svuid = cred->cr_svuid;
812 if (cred->cr_flags & CRED_FLAG_CAPMODE)
813 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
814 /* XXX bde doesn't like KI_NGROUPS */
815 if (cred->cr_ngroups > KI_NGROUPS) {
816 kp->ki_ngroups = KI_NGROUPS;
817 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
819 kp->ki_ngroups = cred->cr_ngroups;
820 bcopy(cred->cr_groups, kp->ki_groups,
821 kp->ki_ngroups * sizeof(gid_t));
822 kp->ki_rgid = cred->cr_rgid;
823 kp->ki_svgid = cred->cr_svgid;
824 /* If jailed(cred), emulate the old P_JAILED flag. */
826 kp->ki_flag |= P_JAILED;
827 /* If inside the jail, use 0 as a jail ID. */
828 if (cred->cr_prison != curthread->td_ucred->cr_prison)
829 kp->ki_jid = cred->cr_prison->pr_id;
831 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
832 sizeof(kp->ki_loginclass));
836 mtx_lock(&ps->ps_mtx);
837 kp->ki_sigignore = ps->ps_sigignore;
838 kp->ki_sigcatch = ps->ps_sigcatch;
839 mtx_unlock(&ps->ps_mtx);
841 if (p->p_state != PRS_NEW &&
842 p->p_state != PRS_ZOMBIE &&
843 p->p_vmspace != NULL) {
844 struct vmspace *vm = p->p_vmspace;
846 kp->ki_size = vm->vm_map.size;
847 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
848 FOREACH_THREAD_IN_PROC(p, td0) {
849 if (!TD_IS_SWAPPED(td0))
850 kp->ki_rssize += td0->td_kstack_pages;
852 kp->ki_swrss = vm->vm_swrss;
853 kp->ki_tsize = vm->vm_tsize;
854 kp->ki_dsize = vm->vm_dsize;
855 kp->ki_ssize = vm->vm_ssize;
856 } else if (p->p_state == PRS_ZOMBIE)
858 if (kp->ki_flag & P_INMEM)
859 kp->ki_sflag = PS_INMEM;
862 /* Calculate legacy swtime as seconds since 'swtick'. */
863 kp->ki_swtime = (ticks - p->p_swtick) / hz;
864 kp->ki_pid = p->p_pid;
865 kp->ki_nice = p->p_nice;
866 kp->ki_start = p->p_stats->p_start;
867 timevaladd(&kp->ki_start, &boottime);
869 rufetch(p, &kp->ki_rusage);
870 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
871 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
873 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
874 /* Some callers want child times in a single value. */
875 kp->ki_childtime = kp->ki_childstime;
876 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
878 FOREACH_THREAD_IN_PROC(p, td0)
879 kp->ki_cow += td0->td_cow;
883 kp->ki_pgid = p->p_pgrp->pg_id;
884 kp->ki_jobc = p->p_pgrp->pg_jobc;
885 sp = p->p_pgrp->pg_session;
888 kp->ki_sid = sp->s_sid;
890 strlcpy(kp->ki_login, sp->s_login,
891 sizeof(kp->ki_login));
893 kp->ki_kiflag |= KI_CTTY;
895 kp->ki_kiflag |= KI_SLEADER;
896 /* XXX proctree_lock */
901 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
902 kp->ki_tdev = tty_udev(tp);
903 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
905 kp->ki_tsid = tp->t_session->s_sid;
908 if (p->p_comm[0] != '\0')
909 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
910 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
911 p->p_sysent->sv_name[0] != '\0')
912 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
913 kp->ki_siglist = p->p_siglist;
914 kp->ki_xstat = p->p_xstat;
915 kp->ki_acflag = p->p_acflag;
916 kp->ki_lock = p->p_lock;
918 kp->ki_ppid = p->p_pptr->p_pid;
922 * Fill in information that is thread specific. Must be called with
923 * target process locked. If 'preferthread' is set, overwrite certain
924 * process-related fields that are maintained for both threads and
928 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
934 PROC_LOCK_ASSERT(p, MA_OWNED);
939 if (td->td_wmesg != NULL)
940 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
942 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
943 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
944 if (TD_ON_LOCK(td)) {
945 kp->ki_kiflag |= KI_LOCKBLOCK;
946 strlcpy(kp->ki_lockname, td->td_lockname,
947 sizeof(kp->ki_lockname));
949 kp->ki_kiflag &= ~KI_LOCKBLOCK;
950 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
953 if (p->p_state == PRS_NORMAL) { /* approximate. */
954 if (TD_ON_RUNQ(td) ||
958 } else if (P_SHOULDSTOP(p)) {
960 } else if (TD_IS_SLEEPING(td)) {
961 kp->ki_stat = SSLEEP;
962 } else if (TD_ON_LOCK(td)) {
967 } else if (p->p_state == PRS_ZOMBIE) {
973 /* Things in the thread */
974 kp->ki_wchan = td->td_wchan;
975 kp->ki_pri.pri_level = td->td_priority;
976 kp->ki_pri.pri_native = td->td_base_pri;
977 kp->ki_lastcpu = td->td_lastcpu;
978 kp->ki_oncpu = td->td_oncpu;
979 kp->ki_tdflags = td->td_flags;
980 kp->ki_tid = td->td_tid;
981 kp->ki_numthreads = p->p_numthreads;
982 kp->ki_pcb = td->td_pcb;
983 kp->ki_kstack = (void *)td->td_kstack;
984 kp->ki_slptime = (ticks - td->td_slptick) / hz;
985 kp->ki_pri.pri_class = td->td_pri_class;
986 kp->ki_pri.pri_user = td->td_user_pri;
989 rufetchtd(td, &kp->ki_rusage);
990 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
991 kp->ki_pctcpu = sched_pctcpu(td);
992 kp->ki_estcpu = td->td_estcpu;
993 kp->ki_cow = td->td_cow;
996 /* We can't get this anymore but ps etc never used it anyway. */
1000 kp->ki_siglist = td->td_siglist;
1001 kp->ki_sigmask = td->td_sigmask;
1008 * Fill in a kinfo_proc structure for the specified process.
1009 * Must be called with the target process locked.
1012 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1015 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1017 fill_kinfo_proc_only(p, kp);
1018 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1019 fill_kinfo_aggregate(p, kp);
1026 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1030 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1033 pstats_fork(struct pstats *src, struct pstats *dst)
1036 bzero(&dst->pstat_startzero,
1037 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1038 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1039 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1043 pstats_free(struct pstats *ps)
1046 free(ps, M_SUBPROC);
1049 static struct proc *
1050 zpfind_locked(pid_t pid)
1054 sx_assert(&allproc_lock, SX_LOCKED);
1055 LIST_FOREACH(p, &zombproc, p_list) {
1056 if (p->p_pid == pid) {
1065 * Locate a zombie process by number
1072 sx_slock(&allproc_lock);
1073 p = zpfind_locked(pid);
1074 sx_sunlock(&allproc_lock);
1078 #ifdef COMPAT_FREEBSD32
1081 * This function is typically used to copy out the kernel address, so
1082 * it can be replaced by assignment of zero.
1084 static inline uint32_t
1085 ptr32_trim(void *ptr)
1089 uptr = (uintptr_t)ptr;
1090 return ((uptr > UINT_MAX) ? 0 : uptr);
1093 #define PTRTRIM_CP(src,dst,fld) \
1094 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1097 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1101 bzero(ki32, sizeof(struct kinfo_proc32));
1102 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1103 CP(*ki, *ki32, ki_layout);
1104 PTRTRIM_CP(*ki, *ki32, ki_args);
1105 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1106 PTRTRIM_CP(*ki, *ki32, ki_addr);
1107 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1108 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1109 PTRTRIM_CP(*ki, *ki32, ki_fd);
1110 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1111 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1112 CP(*ki, *ki32, ki_pid);
1113 CP(*ki, *ki32, ki_ppid);
1114 CP(*ki, *ki32, ki_pgid);
1115 CP(*ki, *ki32, ki_tpgid);
1116 CP(*ki, *ki32, ki_sid);
1117 CP(*ki, *ki32, ki_tsid);
1118 CP(*ki, *ki32, ki_jobc);
1119 CP(*ki, *ki32, ki_tdev);
1120 CP(*ki, *ki32, ki_siglist);
1121 CP(*ki, *ki32, ki_sigmask);
1122 CP(*ki, *ki32, ki_sigignore);
1123 CP(*ki, *ki32, ki_sigcatch);
1124 CP(*ki, *ki32, ki_uid);
1125 CP(*ki, *ki32, ki_ruid);
1126 CP(*ki, *ki32, ki_svuid);
1127 CP(*ki, *ki32, ki_rgid);
1128 CP(*ki, *ki32, ki_svgid);
1129 CP(*ki, *ki32, ki_ngroups);
1130 for (i = 0; i < KI_NGROUPS; i++)
1131 CP(*ki, *ki32, ki_groups[i]);
1132 CP(*ki, *ki32, ki_size);
1133 CP(*ki, *ki32, ki_rssize);
1134 CP(*ki, *ki32, ki_swrss);
1135 CP(*ki, *ki32, ki_tsize);
1136 CP(*ki, *ki32, ki_dsize);
1137 CP(*ki, *ki32, ki_ssize);
1138 CP(*ki, *ki32, ki_xstat);
1139 CP(*ki, *ki32, ki_acflag);
1140 CP(*ki, *ki32, ki_pctcpu);
1141 CP(*ki, *ki32, ki_estcpu);
1142 CP(*ki, *ki32, ki_slptime);
1143 CP(*ki, *ki32, ki_swtime);
1144 CP(*ki, *ki32, ki_cow);
1145 CP(*ki, *ki32, ki_runtime);
1146 TV_CP(*ki, *ki32, ki_start);
1147 TV_CP(*ki, *ki32, ki_childtime);
1148 CP(*ki, *ki32, ki_flag);
1149 CP(*ki, *ki32, ki_kiflag);
1150 CP(*ki, *ki32, ki_traceflag);
1151 CP(*ki, *ki32, ki_stat);
1152 CP(*ki, *ki32, ki_nice);
1153 CP(*ki, *ki32, ki_lock);
1154 CP(*ki, *ki32, ki_rqindex);
1155 CP(*ki, *ki32, ki_oncpu);
1156 CP(*ki, *ki32, ki_lastcpu);
1157 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1158 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1159 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1160 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1161 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1162 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1163 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1164 CP(*ki, *ki32, ki_cr_flags);
1165 CP(*ki, *ki32, ki_jid);
1166 CP(*ki, *ki32, ki_numthreads);
1167 CP(*ki, *ki32, ki_tid);
1168 CP(*ki, *ki32, ki_pri);
1169 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1170 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1171 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1172 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1173 PTRTRIM_CP(*ki, *ki32, ki_udata);
1174 CP(*ki, *ki32, ki_sflag);
1175 CP(*ki, *ki32, ki_tdflags);
1180 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1183 struct kinfo_proc ki;
1184 #ifdef COMPAT_FREEBSD32
1185 struct kinfo_proc32 ki32;
1189 PROC_LOCK_ASSERT(p, MA_OWNED);
1190 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1193 fill_kinfo_proc(p, &ki);
1194 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1195 #ifdef COMPAT_FREEBSD32
1196 if ((flags & KERN_PROC_MASK32) != 0) {
1197 freebsd32_kinfo_proc_out(&ki, &ki32);
1198 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1201 error = sbuf_bcat(sb, &ki, sizeof(ki));
1203 FOREACH_THREAD_IN_PROC(p, td) {
1204 fill_kinfo_thread(td, &ki, 1);
1205 #ifdef COMPAT_FREEBSD32
1206 if ((flags & KERN_PROC_MASK32) != 0) {
1207 freebsd32_kinfo_proc_out(&ki, &ki32);
1208 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1211 error = sbuf_bcat(sb, &ki, sizeof(ki));
1221 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1225 struct kinfo_proc ki;
1231 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1232 error = kern_proc_out(p, &sb, flags);
1233 error2 = sbuf_finish(&sb);
1237 else if (error2 != 0)
1257 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1259 int *name = (int *)arg1;
1260 u_int namelen = arg2;
1262 int flags, doingzomb, oid_number;
1265 oid_number = oidp->oid_number;
1266 if (oid_number != KERN_PROC_ALL &&
1267 (oid_number & KERN_PROC_INC_THREAD) == 0)
1268 flags = KERN_PROC_NOTHREADS;
1271 oid_number &= ~KERN_PROC_INC_THREAD;
1273 #ifdef COMPAT_FREEBSD32
1274 if (req->flags & SCTL_MASK32)
1275 flags |= KERN_PROC_MASK32;
1277 if (oid_number == KERN_PROC_PID) {
1280 error = sysctl_wire_old_buffer(req, 0);
1283 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1286 error = sysctl_out_proc(p, req, flags, 0);
1290 switch (oid_number) {
1295 case KERN_PROC_PROC:
1296 if (namelen != 0 && namelen != 1)
1306 /* overestimate by 5 procs */
1307 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1311 error = sysctl_wire_old_buffer(req, 0);
1314 sx_slock(&allproc_lock);
1315 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1317 p = LIST_FIRST(&allproc);
1319 p = LIST_FIRST(&zombproc);
1320 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1322 * Skip embryonic processes.
1325 if (p->p_state == PRS_NEW) {
1329 KASSERT(p->p_ucred != NULL,
1330 ("process credential is NULL for non-NEW proc"));
1332 * Show a user only appropriate processes.
1334 if (p_cansee(curthread, p)) {
1339 * TODO - make more efficient (see notes below).
1342 switch (oid_number) {
1345 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1351 case KERN_PROC_PGRP:
1352 /* could do this by traversing pgrp */
1353 if (p->p_pgrp == NULL ||
1354 p->p_pgrp->pg_id != (pid_t)name[0]) {
1360 case KERN_PROC_RGID:
1361 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1367 case KERN_PROC_SESSION:
1368 if (p->p_session == NULL ||
1369 p->p_session->s_sid != (pid_t)name[0]) {
1376 if ((p->p_flag & P_CONTROLT) == 0 ||
1377 p->p_session == NULL) {
1381 /* XXX proctree_lock */
1382 SESS_LOCK(p->p_session);
1383 if (p->p_session->s_ttyp == NULL ||
1384 tty_udev(p->p_session->s_ttyp) !=
1386 SESS_UNLOCK(p->p_session);
1390 SESS_UNLOCK(p->p_session);
1394 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1400 case KERN_PROC_RUID:
1401 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1407 case KERN_PROC_PROC:
1415 error = sysctl_out_proc(p, req, flags, doingzomb);
1417 sx_sunlock(&allproc_lock);
1422 sx_sunlock(&allproc_lock);
1427 pargs_alloc(int len)
1431 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1433 refcount_init(&pa->ar_ref, 1);
1434 pa->ar_length = len;
1439 pargs_free(struct pargs *pa)
1446 pargs_hold(struct pargs *pa)
1451 refcount_acquire(&pa->ar_ref);
1455 pargs_drop(struct pargs *pa)
1460 if (refcount_release(&pa->ar_ref))
1465 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1471 iov.iov_base = (caddr_t)buf;
1475 uio.uio_offset = offset;
1476 uio.uio_resid = (ssize_t)len;
1477 uio.uio_segflg = UIO_SYSSPACE;
1478 uio.uio_rw = UIO_READ;
1481 return (proc_rwmem(p, &uio));
1485 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1491 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1493 * Reading the chunk may validly return EFAULT if the string is shorter
1494 * than the chunk and is aligned at the end of the page, assuming the
1495 * next page is not mapped. So if EFAULT is returned do a fallback to
1496 * one byte read loop.
1498 if (error == EFAULT) {
1499 for (i = 0; i < len; i++, buf++, sptr++) {
1500 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1511 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1513 enum proc_vector_type {
1519 #ifdef COMPAT_FREEBSD32
1521 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1522 size_t *vsizep, enum proc_vector_type type)
1524 struct freebsd32_ps_strings pss;
1526 vm_offset_t vptr, ptr;
1527 uint32_t *proc_vector32;
1532 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1538 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1539 vsize = pss.ps_nargvstr;
1540 if (vsize > ARG_MAX)
1542 size = vsize * sizeof(int32_t);
1545 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1546 vsize = pss.ps_nenvstr;
1547 if (vsize > ARG_MAX)
1549 size = vsize * sizeof(int32_t);
1552 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1553 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1556 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1557 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1560 if (aux.a_type == AT_NULL)
1564 if (aux.a_type != AT_NULL)
1567 size = vsize * sizeof(aux);
1570 KASSERT(0, ("Wrong proc vector type: %d", type));
1573 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1574 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1577 if (type == PROC_AUX) {
1578 *proc_vectorp = (char **)proc_vector32;
1582 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1583 for (i = 0; i < (int)vsize; i++)
1584 proc_vector[i] = PTRIN(proc_vector32[i]);
1585 *proc_vectorp = proc_vector;
1588 free(proc_vector32, M_TEMP);
1594 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1595 size_t *vsizep, enum proc_vector_type type)
1597 struct ps_strings pss;
1599 vm_offset_t vptr, ptr;
1604 #ifdef COMPAT_FREEBSD32
1605 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1606 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1608 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1614 vptr = (vm_offset_t)pss.ps_argvstr;
1615 vsize = pss.ps_nargvstr;
1616 if (vsize > ARG_MAX)
1618 size = vsize * sizeof(char *);
1621 vptr = (vm_offset_t)pss.ps_envstr;
1622 vsize = pss.ps_nenvstr;
1623 if (vsize > ARG_MAX)
1625 size = vsize * sizeof(char *);
1629 * The aux array is just above env array on the stack. Check
1630 * that the address is naturally aligned.
1632 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1634 #if __ELF_WORD_SIZE == 64
1635 if (vptr % sizeof(uint64_t) != 0)
1637 if (vptr % sizeof(uint32_t) != 0)
1641 * We count the array size reading the aux vectors from the
1642 * stack until AT_NULL vector is returned. So (to keep the code
1643 * simple) we read the process stack twice: the first time here
1644 * to find the size and the second time when copying the vectors
1645 * to the allocated proc_vector.
1647 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1648 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1651 if (aux.a_type == AT_NULL)
1656 * If the PROC_AUXV_MAX entries are iterated over, and we have
1657 * not reached AT_NULL, it is most likely we are reading wrong
1658 * data: either the process doesn't have auxv array or data has
1659 * been modified. Return the error in this case.
1661 if (aux.a_type != AT_NULL)
1664 size = vsize * sizeof(aux);
1667 KASSERT(0, ("Wrong proc vector type: %d", type));
1668 return (EINVAL); /* In case we are built without INVARIANTS. */
1670 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1671 if (proc_vector == NULL)
1673 error = proc_read_mem(td, p, vptr, proc_vector, size);
1675 free(proc_vector, M_TEMP);
1678 *proc_vectorp = proc_vector;
1684 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1687 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1688 enum proc_vector_type type)
1690 size_t done, len, nchr, vsize;
1692 char **proc_vector, *sptr;
1693 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1695 PROC_ASSERT_HELD(p);
1698 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1700 nchr = 2 * (PATH_MAX + ARG_MAX);
1702 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1705 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1707 * The program may have scribbled into its argv array, e.g. to
1708 * remove some arguments. If that has happened, break out
1709 * before trying to read from NULL.
1711 if (proc_vector[i] == NULL)
1713 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1714 error = proc_read_string(td, p, sptr, pss_string,
1715 sizeof(pss_string));
1718 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1719 if (done + len >= nchr)
1720 len = nchr - done - 1;
1721 sbuf_bcat(sb, pss_string, len);
1722 if (len != GET_PS_STRINGS_CHUNK_SZ)
1724 done += GET_PS_STRINGS_CHUNK_SZ;
1726 sbuf_bcat(sb, "", 1);
1730 free(proc_vector, M_TEMP);
1735 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1738 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1742 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1745 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1749 proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb)
1755 error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX);
1757 #ifdef COMPAT_FREEBSD32
1758 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1759 size = vsize * sizeof(Elf32_Auxinfo);
1762 size = vsize * sizeof(Elf_Auxinfo);
1763 error = sbuf_bcat(sb, auxv, size);
1770 * This sysctl allows a process to retrieve the argument list or process
1771 * title for another process without groping around in the address space
1772 * of the other process. It also allow a process to set its own "process
1773 * title to a string of its own choice.
1776 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1778 int *name = (int *)arg1;
1779 u_int namelen = arg2;
1780 struct pargs *newpa, *pa;
1783 int flags, error = 0, error2;
1788 flags = PGET_CANSEE;
1789 if (req->newptr != NULL)
1790 flags |= PGET_ISCURRENT;
1791 error = pget((pid_t)name[0], flags, &p);
1799 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1801 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1804 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1805 error = proc_getargv(curthread, p, &sb);
1806 error2 = sbuf_finish(&sb);
1809 if (error == 0 && error2 != 0)
1814 if (error != 0 || req->newptr == NULL)
1817 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1819 newpa = pargs_alloc(req->newlen);
1820 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1834 * This sysctl allows a process to retrieve environment of another process.
1837 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1839 int *name = (int *)arg1;
1840 u_int namelen = arg2;
1848 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1851 if ((p->p_flag & P_SYSTEM) != 0) {
1856 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1857 error = proc_getenvv(curthread, p, &sb);
1858 error2 = sbuf_finish(&sb);
1861 return (error != 0 ? error : error2);
1865 * This sysctl allows a process to retrieve ELF auxiliary vector of
1869 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1871 int *name = (int *)arg1;
1872 u_int namelen = arg2;
1880 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1883 if ((p->p_flag & P_SYSTEM) != 0) {
1887 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1888 error = proc_getauxv(curthread, p, &sb);
1889 error2 = sbuf_finish(&sb);
1892 return (error != 0 ? error : error2);
1896 * This sysctl allows a process to retrieve the path of the executable for
1897 * itself or another process.
1900 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1902 pid_t *pidp = (pid_t *)arg1;
1903 unsigned int arglen = arg2;
1906 char *retbuf, *freebuf;
1907 int error, vfslocked;
1911 if (*pidp == -1) { /* -1 means this process */
1912 p = req->td->td_proc;
1914 error = pget(*pidp, PGET_CANSEE, &p);
1928 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1929 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
1931 VFS_UNLOCK_GIANT(vfslocked);
1934 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1935 free(freebuf, M_TEMP);
1940 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1953 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1956 sv_name = p->p_sysent->sv_name;
1958 return (sysctl_handle_string(oidp, sv_name, 0, req));
1961 #ifdef KINFO_OVMENTRY_SIZE
1962 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1965 #ifdef COMPAT_FREEBSD7
1967 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1969 vm_map_entry_t entry, tmp_entry;
1970 unsigned int last_timestamp;
1971 char *fullpath, *freepath;
1972 struct kinfo_ovmentry *kve;
1982 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1985 vm = vmspace_acquire_ref(p);
1990 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
1992 map = &p->p_vmspace->vm_map; /* XXXRW: More locking required? */
1993 vm_map_lock_read(map);
1994 for (entry = map->header.next; entry != &map->header;
1995 entry = entry->next) {
1996 vm_object_t obj, tobj, lobj;
2000 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2003 bzero(kve, sizeof(*kve));
2004 kve->kve_structsize = sizeof(*kve);
2006 kve->kve_private_resident = 0;
2007 obj = entry->object.vm_object;
2009 VM_OBJECT_LOCK(obj);
2010 if (obj->shadow_count == 1)
2011 kve->kve_private_resident =
2012 obj->resident_page_count;
2014 kve->kve_resident = 0;
2015 addr = entry->start;
2016 while (addr < entry->end) {
2017 if (pmap_extract(map->pmap, addr))
2018 kve->kve_resident++;
2022 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2024 VM_OBJECT_LOCK(tobj);
2026 VM_OBJECT_UNLOCK(lobj);
2030 kve->kve_start = (void*)entry->start;
2031 kve->kve_end = (void*)entry->end;
2032 kve->kve_offset = (off_t)entry->offset;
2034 if (entry->protection & VM_PROT_READ)
2035 kve->kve_protection |= KVME_PROT_READ;
2036 if (entry->protection & VM_PROT_WRITE)
2037 kve->kve_protection |= KVME_PROT_WRITE;
2038 if (entry->protection & VM_PROT_EXECUTE)
2039 kve->kve_protection |= KVME_PROT_EXEC;
2041 if (entry->eflags & MAP_ENTRY_COW)
2042 kve->kve_flags |= KVME_FLAG_COW;
2043 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2044 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2045 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2046 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2048 last_timestamp = map->timestamp;
2049 vm_map_unlock_read(map);
2051 kve->kve_fileid = 0;
2057 switch (lobj->type) {
2059 kve->kve_type = KVME_TYPE_DEFAULT;
2062 kve->kve_type = KVME_TYPE_VNODE;
2067 kve->kve_type = KVME_TYPE_SWAP;
2070 kve->kve_type = KVME_TYPE_DEVICE;
2073 kve->kve_type = KVME_TYPE_PHYS;
2076 kve->kve_type = KVME_TYPE_DEAD;
2079 kve->kve_type = KVME_TYPE_SG;
2082 kve->kve_type = KVME_TYPE_UNKNOWN;
2086 VM_OBJECT_UNLOCK(lobj);
2088 kve->kve_ref_count = obj->ref_count;
2089 kve->kve_shadow_count = obj->shadow_count;
2090 VM_OBJECT_UNLOCK(obj);
2092 vn_fullpath(curthread, vp, &fullpath,
2094 cred = curthread->td_ucred;
2095 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2096 vn_lock(vp, LK_SHARED | LK_RETRY);
2097 if (VOP_GETATTR(vp, &va, cred) == 0) {
2098 kve->kve_fileid = va.va_fileid;
2099 kve->kve_fsid = va.va_fsid;
2102 VFS_UNLOCK_GIANT(vfslocked);
2105 kve->kve_type = KVME_TYPE_NONE;
2106 kve->kve_ref_count = 0;
2107 kve->kve_shadow_count = 0;
2110 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2111 if (freepath != NULL)
2112 free(freepath, M_TEMP);
2114 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2115 vm_map_lock_read(map);
2118 if (last_timestamp != map->timestamp) {
2119 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2123 vm_map_unlock_read(map);
2129 #endif /* COMPAT_FREEBSD7 */
2131 #ifdef KINFO_VMENTRY_SIZE
2132 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2136 * Must be called with the process locked and will return unlocked.
2139 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2141 vm_map_entry_t entry, tmp_entry;
2142 unsigned int last_timestamp;
2143 char *fullpath, *freepath;
2144 struct kinfo_vmentry *kve;
2152 PROC_LOCK_ASSERT(p, MA_OWNED);
2156 vm = vmspace_acquire_ref(p);
2161 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2164 map = &vm->vm_map; /* XXXRW: More locking required? */
2165 vm_map_lock_read(map);
2166 for (entry = map->header.next; entry != &map->header;
2167 entry = entry->next) {
2168 vm_object_t obj, tobj, lobj;
2170 vm_paddr_t locked_pa;
2171 int vfslocked, mincoreinfo;
2173 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2176 bzero(kve, sizeof(*kve));
2178 kve->kve_private_resident = 0;
2179 obj = entry->object.vm_object;
2181 VM_OBJECT_LOCK(obj);
2182 if (obj->shadow_count == 1)
2183 kve->kve_private_resident =
2184 obj->resident_page_count;
2186 kve->kve_resident = 0;
2187 addr = entry->start;
2188 while (addr < entry->end) {
2190 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2192 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2193 if (mincoreinfo & MINCORE_INCORE)
2194 kve->kve_resident++;
2195 if (mincoreinfo & MINCORE_SUPER)
2196 kve->kve_flags |= KVME_FLAG_SUPER;
2200 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2202 VM_OBJECT_LOCK(tobj);
2204 VM_OBJECT_UNLOCK(lobj);
2208 kve->kve_start = entry->start;
2209 kve->kve_end = entry->end;
2210 kve->kve_offset = entry->offset;
2212 if (entry->protection & VM_PROT_READ)
2213 kve->kve_protection |= KVME_PROT_READ;
2214 if (entry->protection & VM_PROT_WRITE)
2215 kve->kve_protection |= KVME_PROT_WRITE;
2216 if (entry->protection & VM_PROT_EXECUTE)
2217 kve->kve_protection |= KVME_PROT_EXEC;
2219 if (entry->eflags & MAP_ENTRY_COW)
2220 kve->kve_flags |= KVME_FLAG_COW;
2221 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2222 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2223 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2224 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2225 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2226 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2227 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2228 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2230 last_timestamp = map->timestamp;
2231 vm_map_unlock_read(map);
2237 switch (lobj->type) {
2239 kve->kve_type = KVME_TYPE_DEFAULT;
2242 kve->kve_type = KVME_TYPE_VNODE;
2247 kve->kve_type = KVME_TYPE_SWAP;
2250 kve->kve_type = KVME_TYPE_DEVICE;
2253 kve->kve_type = KVME_TYPE_PHYS;
2256 kve->kve_type = KVME_TYPE_DEAD;
2259 kve->kve_type = KVME_TYPE_SG;
2262 kve->kve_type = KVME_TYPE_UNKNOWN;
2266 VM_OBJECT_UNLOCK(lobj);
2268 kve->kve_ref_count = obj->ref_count;
2269 kve->kve_shadow_count = obj->shadow_count;
2270 VM_OBJECT_UNLOCK(obj);
2272 vn_fullpath(curthread, vp, &fullpath,
2274 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2275 cred = curthread->td_ucred;
2276 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2277 vn_lock(vp, LK_SHARED | LK_RETRY);
2278 if (VOP_GETATTR(vp, &va, cred) == 0) {
2279 kve->kve_vn_fileid = va.va_fileid;
2280 kve->kve_vn_fsid = va.va_fsid;
2282 MAKEIMODE(va.va_type, va.va_mode);
2283 kve->kve_vn_size = va.va_size;
2284 kve->kve_vn_rdev = va.va_rdev;
2285 kve->kve_status = KF_ATTR_VALID;
2288 VFS_UNLOCK_GIANT(vfslocked);
2291 kve->kve_type = KVME_TYPE_NONE;
2292 kve->kve_ref_count = 0;
2293 kve->kve_shadow_count = 0;
2296 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2297 if (freepath != NULL)
2298 free(freepath, M_TEMP);
2300 /* Pack record size down */
2301 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2302 strlen(kve->kve_path) + 1;
2303 kve->kve_structsize = roundup(kve->kve_structsize,
2305 error = sbuf_bcat(sb, kve, kve->kve_structsize);
2306 vm_map_lock_read(map);
2309 if (last_timestamp != map->timestamp) {
2310 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2314 vm_map_unlock_read(map);
2322 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2326 int error, error2, *name;
2329 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2330 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2335 error = kern_proc_vmmap_out(p, &sb);
2336 error2 = sbuf_finish(&sb);
2338 return (error != 0 ? error : error2);
2341 #if defined(STACK) || defined(DDB)
2343 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2345 struct kinfo_kstack *kkstp;
2346 int error, i, *name, numthreads;
2347 lwpid_t *lwpidarray;
2354 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2358 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2359 st = stack_create();
2365 if (numthreads < p->p_numthreads) {
2366 if (lwpidarray != NULL) {
2367 free(lwpidarray, M_TEMP);
2370 numthreads = p->p_numthreads;
2372 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2380 * XXXRW: During the below loop, execve(2) and countless other sorts
2381 * of changes could have taken place. Should we check to see if the
2382 * vmspace has been replaced, or the like, in order to prevent
2383 * giving a snapshot that spans, say, execve(2), with some threads
2384 * before and some after? Among other things, the credentials could
2385 * have changed, in which case the right to extract debug info might
2386 * no longer be assured.
2388 FOREACH_THREAD_IN_PROC(p, td) {
2389 KASSERT(i < numthreads,
2390 ("sysctl_kern_proc_kstack: numthreads"));
2391 lwpidarray[i] = td->td_tid;
2395 for (i = 0; i < numthreads; i++) {
2396 td = thread_find(p, lwpidarray[i]);
2400 bzero(kkstp, sizeof(*kkstp));
2401 (void)sbuf_new(&sb, kkstp->kkst_trace,
2402 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2404 kkstp->kkst_tid = td->td_tid;
2405 if (TD_IS_SWAPPED(td))
2406 kkstp->kkst_state = KKST_STATE_SWAPPED;
2407 else if (TD_IS_RUNNING(td))
2408 kkstp->kkst_state = KKST_STATE_RUNNING;
2410 kkstp->kkst_state = KKST_STATE_STACKOK;
2411 stack_save_td(st, td);
2415 stack_sbuf_print(&sb, st);
2418 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2425 if (lwpidarray != NULL)
2426 free(lwpidarray, M_TEMP);
2428 free(kkstp, M_TEMP);
2434 * This sysctl allows a process to retrieve the full list of groups from
2435 * itself or another process.
2438 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2440 pid_t *pidp = (pid_t *)arg1;
2441 unsigned int arglen = arg2;
2448 if (*pidp == -1) { /* -1 means this process */
2449 p = req->td->td_proc;
2451 error = pget(*pidp, PGET_CANSEE, &p);
2456 cred = crhold(p->p_ucred);
2460 error = SYSCTL_OUT(req, cred->cr_groups,
2461 cred->cr_ngroups * sizeof(gid_t));
2467 * This sysctl allows a process to retrieve or/and set the resource limit for
2471 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2473 int *name = (int *)arg1;
2474 u_int namelen = arg2;
2483 which = (u_int)name[1];
2484 if (which >= RLIM_NLIMITS)
2487 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2490 flags = PGET_HOLD | PGET_NOTWEXIT;
2491 if (req->newptr != NULL)
2492 flags |= PGET_CANDEBUG;
2494 flags |= PGET_CANSEE;
2495 error = pget((pid_t)name[0], flags, &p);
2502 if (req->oldptr != NULL) {
2504 lim_rlimit(p, which, &rlim);
2507 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2514 if (req->newptr != NULL) {
2515 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2517 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2526 * This sysctl allows a process to retrieve ps_strings structure location of
2530 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2532 int *name = (int *)arg1;
2533 u_int namelen = arg2;
2535 vm_offset_t ps_strings;
2537 #ifdef COMPAT_FREEBSD32
2538 uint32_t ps_strings32;
2544 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2547 #ifdef COMPAT_FREEBSD32
2548 if ((req->flags & SCTL_MASK32) != 0) {
2550 * We return 0 if the 32 bit emulation request is for a 64 bit
2553 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2554 PTROUT(p->p_sysent->sv_psstrings) : 0;
2556 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2560 ps_strings = p->p_sysent->sv_psstrings;
2562 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2567 * This sysctl allows a process to retrieve umask of another process.
2570 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2572 int *name = (int *)arg1;
2573 u_int namelen = arg2;
2581 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2585 FILEDESC_SLOCK(p->p_fd);
2586 fd_cmask = p->p_fd->fd_cmask;
2587 FILEDESC_SUNLOCK(p->p_fd);
2589 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2594 * This sysctl allows a process to set and retrieve binary osreldate of
2598 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2600 int *name = (int *)arg1;
2601 u_int namelen = arg2;
2603 int flags, error, osrel;
2608 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2611 flags = PGET_HOLD | PGET_NOTWEXIT;
2612 if (req->newptr != NULL)
2613 flags |= PGET_CANDEBUG;
2615 flags |= PGET_CANSEE;
2616 error = pget((pid_t)name[0], flags, &p);
2620 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2624 if (req->newptr != NULL) {
2625 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2640 sysctl_kern_proc_sigtramp(SYSCTL_HANDLER_ARGS)
2642 int *name = (int *)arg1;
2643 u_int namelen = arg2;
2645 struct kinfo_sigtramp kst;
2646 const struct sysentvec *sv;
2648 #ifdef COMPAT_FREEBSD32
2649 struct kinfo_sigtramp32 kst32;
2655 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2659 #ifdef COMPAT_FREEBSD32
2660 if ((req->flags & SCTL_MASK32) != 0) {
2661 bzero(&kst32, sizeof(kst32));
2662 if (SV_PROC_FLAG(p, SV_ILP32)) {
2663 if (sv->sv_sigcode_base != 0) {
2664 kst32.ksigtramp_start = sv->sv_sigcode_base;
2665 kst32.ksigtramp_end = sv->sv_sigcode_base +
2668 kst32.ksigtramp_start = sv->sv_psstrings -
2670 kst32.ksigtramp_end = sv->sv_psstrings;
2674 error = SYSCTL_OUT(req, &kst32, sizeof(kst32));
2678 bzero(&kst, sizeof(kst));
2679 if (sv->sv_sigcode_base != 0) {
2680 kst.ksigtramp_start = (char *)sv->sv_sigcode_base;
2681 kst.ksigtramp_end = (char *)sv->sv_sigcode_base +
2684 kst.ksigtramp_start = (char *)sv->sv_psstrings -
2686 kst.ksigtramp_end = (char *)sv->sv_psstrings;
2689 error = SYSCTL_OUT(req, &kst, sizeof(kst));
2693 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2695 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2696 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2697 "Return entire process table");
2699 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2700 sysctl_kern_proc, "Process table");
2702 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2703 sysctl_kern_proc, "Process table");
2705 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2706 sysctl_kern_proc, "Process table");
2708 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2709 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2711 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2712 sysctl_kern_proc, "Process table");
2714 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2715 sysctl_kern_proc, "Process table");
2717 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2718 sysctl_kern_proc, "Process table");
2720 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2721 sysctl_kern_proc, "Process table");
2723 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2724 sysctl_kern_proc, "Return process table, no threads");
2726 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2727 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2728 sysctl_kern_proc_args, "Process argument list");
2730 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2731 sysctl_kern_proc_env, "Process environment");
2733 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2734 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2736 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2737 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2739 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2740 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2741 "Process syscall vector name (ABI type)");
2743 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2744 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2746 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2747 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2749 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2750 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2752 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2753 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2755 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2756 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2758 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2759 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2761 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2762 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2764 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2765 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2767 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2768 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2769 "Return process table, no threads");
2771 #ifdef COMPAT_FREEBSD7
2772 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2773 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2776 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2777 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2779 #if defined(STACK) || defined(DDB)
2780 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2781 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2784 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2785 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2787 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2788 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2789 "Process resource limits");
2791 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2792 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2793 "Process ps_strings location");
2795 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2796 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2798 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2799 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2800 "Process binary osreldate");
2802 static SYSCTL_NODE(_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD |
2803 CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp,
2804 "Process signal trampoline location");