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
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
37 #include "opt_kdtrace.h"
38 #include "opt_ktrace.h"
39 #include "opt_kstack_pages.h"
40 #include "opt_stack.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/kernel.h>
47 #include <sys/limits.h>
49 #include <sys/loginclass.h>
50 #include <sys/malloc.h>
52 #include <sys/mount.h>
53 #include <sys/mutex.h>
55 #include <sys/ptrace.h>
56 #include <sys/refcount.h>
57 #include <sys/resourcevar.h>
59 #include <sys/sysent.h>
60 #include <sys/sched.h>
62 #include <sys/stack.h>
64 #include <sys/sysctl.h>
65 #include <sys/filedesc.h>
67 #include <sys/signalvar.h>
72 #include <sys/vnode.h>
73 #include <sys/eventhandler.h>
80 #include <vm/vm_param.h>
81 #include <vm/vm_extern.h>
83 #include <vm/vm_map.h>
84 #include <vm/vm_object.h>
85 #include <vm/vm_page.h>
88 #ifdef COMPAT_FREEBSD32
89 #include <compat/freebsd32/freebsd32.h>
90 #include <compat/freebsd32/freebsd32_util.h>
93 SDT_PROVIDER_DEFINE(proc);
94 SDT_PROBE_DEFINE4(proc, kernel, ctor, entry, "struct proc *", "int",
96 SDT_PROBE_DEFINE4(proc, kernel, ctor, return, "struct proc *", "int",
98 SDT_PROBE_DEFINE4(proc, kernel, dtor, entry, "struct proc *", "int",
99 "void *", "struct thread *");
100 SDT_PROBE_DEFINE3(proc, kernel, dtor, return, "struct proc *", "int",
102 SDT_PROBE_DEFINE3(proc, kernel, init, entry, "struct proc *", "int",
104 SDT_PROBE_DEFINE3(proc, kernel, init, return, "struct proc *", "int",
107 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
108 MALLOC_DEFINE(M_SESSION, "session", "session header");
109 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
110 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
112 static void doenterpgrp(struct proc *, struct pgrp *);
113 static void orphanpg(struct pgrp *pg);
114 static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp);
115 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
116 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp,
118 static void pgadjustjobc(struct pgrp *pgrp, int entering);
119 static void pgdelete(struct pgrp *);
120 static int proc_ctor(void *mem, int size, void *arg, int flags);
121 static void proc_dtor(void *mem, int size, void *arg);
122 static int proc_init(void *mem, int size, int flags);
123 static void proc_fini(void *mem, int size);
124 static void pargs_free(struct pargs *pa);
125 static struct proc *zpfind_locked(pid_t pid);
128 * Other process lists
130 struct pidhashhead *pidhashtbl;
132 struct pgrphashhead *pgrphashtbl;
134 struct proclist allproc;
135 struct proclist zombproc;
136 struct sx allproc_lock;
137 struct sx proctree_lock;
138 struct mtx ppeers_lock;
139 uma_zone_t proc_zone;
141 int kstack_pages = KSTACK_PAGES;
142 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0,
143 "Kernel stack size in pages");
144 static int vmmap_skip_res_cnt = 0;
145 SYSCTL_INT(_kern, OID_AUTO, proc_vmmap_skip_resident_count, CTLFLAG_RW,
146 &vmmap_skip_res_cnt, 0,
147 "Skip calculation of the pages resident count in kern.proc.vmmap");
149 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
150 #ifdef COMPAT_FREEBSD32
151 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
155 * Initialize global process hashing structures.
161 sx_init(&allproc_lock, "allproc");
162 sx_init(&proctree_lock, "proctree");
163 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
165 LIST_INIT(&zombproc);
166 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
167 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
168 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
169 proc_ctor, proc_dtor, proc_init, proc_fini,
170 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
175 * Prepare a proc for use.
178 proc_ctor(void *mem, int size, void *arg, int flags)
182 p = (struct proc *)mem;
183 SDT_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?
267 register struct proc *p;
270 sx_assert(&proctree_lock, SX_LOCKED);
271 for (; p != curproc; p = p->p_pptr)
278 pfind_locked(pid_t pid)
282 sx_assert(&allproc_lock, SX_LOCKED);
283 LIST_FOREACH(p, PIDHASH(pid), p_hash) {
284 if (p->p_pid == pid) {
286 if (p->p_state == PRS_NEW) {
297 * Locate a process by number; return only "live" processes -- i.e., neither
298 * zombies nor newly born but incompletely initialized processes. By not
299 * returning processes in the PRS_NEW state, we allow callers to avoid
300 * testing for that condition to avoid dereferencing p_ucred, et al.
307 sx_slock(&allproc_lock);
308 p = pfind_locked(pid);
309 sx_sunlock(&allproc_lock);
314 pfind_tid_locked(pid_t tid)
319 sx_assert(&allproc_lock, SX_LOCKED);
320 FOREACH_PROC_IN_SYSTEM(p) {
322 if (p->p_state == PRS_NEW) {
326 FOREACH_THREAD_IN_PROC(p, td) {
327 if (td->td_tid == tid)
337 * Locate a process group by number.
338 * The caller must hold proctree_lock.
344 register struct pgrp *pgrp;
346 sx_assert(&proctree_lock, SX_LOCKED);
348 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
349 if (pgrp->pg_id == pgid) {
358 * Locate process and do additional manipulations, depending on flags.
361 pget(pid_t pid, int flags, struct proc **pp)
366 sx_slock(&allproc_lock);
367 if (pid <= PID_MAX) {
368 p = pfind_locked(pid);
369 if (p == NULL && (flags & PGET_NOTWEXIT) == 0)
370 p = zpfind_locked(pid);
371 } else if ((flags & PGET_NOTID) == 0) {
372 p = pfind_tid_locked(pid);
376 sx_sunlock(&allproc_lock);
379 if ((flags & PGET_CANSEE) != 0) {
380 error = p_cansee(curthread, p);
384 if ((flags & PGET_CANDEBUG) != 0) {
385 error = p_candebug(curthread, p);
389 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
393 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
397 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
399 * XXXRW: Not clear ESRCH is the right error during proc
405 if ((flags & PGET_HOLD) != 0) {
417 * Create a new process group.
418 * pgid must be equal to the pid of p.
419 * Begin a new session if required.
422 enterpgrp(p, pgid, pgrp, sess)
423 register struct proc *p;
426 struct session *sess;
429 sx_assert(&proctree_lock, SX_XLOCKED);
431 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
432 KASSERT(p->p_pid == pgid,
433 ("enterpgrp: new pgrp and pid != pgid"));
434 KASSERT(pgfind(pgid) == NULL,
435 ("enterpgrp: pgrp with pgid exists"));
436 KASSERT(!SESS_LEADER(p),
437 ("enterpgrp: session leader attempted setpgrp"));
439 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
445 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
447 p->p_flag &= ~P_CONTROLT;
451 sess->s_sid = p->p_pid;
452 refcount_init(&sess->s_count, 1);
453 sess->s_ttyvp = NULL;
454 sess->s_ttydp = NULL;
456 bcopy(p->p_session->s_login, sess->s_login,
457 sizeof(sess->s_login));
458 pgrp->pg_session = sess;
459 KASSERT(p == curproc,
460 ("enterpgrp: mksession and p != curproc"));
462 pgrp->pg_session = p->p_session;
463 sess_hold(pgrp->pg_session);
467 LIST_INIT(&pgrp->pg_members);
470 * As we have an exclusive lock of proctree_lock,
471 * this should not deadlock.
473 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
475 SLIST_INIT(&pgrp->pg_sigiolst);
478 doenterpgrp(p, pgrp);
484 * Move p to an existing process group
487 enterthispgrp(p, pgrp)
488 register struct proc *p;
492 sx_assert(&proctree_lock, SX_XLOCKED);
493 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
494 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
495 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
496 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
497 KASSERT(pgrp->pg_session == p->p_session,
498 ("%s: pgrp's session %p, p->p_session %p.\n",
502 KASSERT(pgrp != p->p_pgrp,
503 ("%s: p belongs to pgrp.", __func__));
505 doenterpgrp(p, pgrp);
511 * Move p to a process group
518 struct pgrp *savepgrp;
520 sx_assert(&proctree_lock, SX_XLOCKED);
521 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
522 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
523 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
524 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
526 savepgrp = p->p_pgrp;
529 * Adjust eligibility of affected pgrps to participate in job control.
530 * Increment eligibility counts before decrementing, otherwise we
531 * could reach 0 spuriously during the first call.
534 fixjobc(p, p->p_pgrp, 0);
539 LIST_REMOVE(p, p_pglist);
542 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
543 PGRP_UNLOCK(savepgrp);
545 if (LIST_EMPTY(&savepgrp->pg_members))
550 * remove process from process group
554 register struct proc *p;
556 struct pgrp *savepgrp;
558 sx_assert(&proctree_lock, SX_XLOCKED);
559 savepgrp = p->p_pgrp;
562 LIST_REMOVE(p, p_pglist);
565 PGRP_UNLOCK(savepgrp);
566 if (LIST_EMPTY(&savepgrp->pg_members))
572 * delete a process group
576 register struct pgrp *pgrp;
578 struct session *savesess;
581 sx_assert(&proctree_lock, SX_XLOCKED);
582 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
583 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
586 * Reset any sigio structures pointing to us as a result of
587 * F_SETOWN with our pgid.
589 funsetownlst(&pgrp->pg_sigiolst);
592 tp = pgrp->pg_session->s_ttyp;
593 LIST_REMOVE(pgrp, pg_hash);
594 savesess = pgrp->pg_session;
597 /* Remove the reference to the pgrp before deallocating it. */
600 tty_rel_pgrp(tp, pgrp);
603 mtx_destroy(&pgrp->pg_mtx);
605 sess_release(savesess);
609 pgadjustjobc(pgrp, entering)
619 if (pgrp->pg_jobc == 0)
626 * Adjust pgrp jobc counters when specified process changes process group.
627 * We count the number of processes in each process group that "qualify"
628 * the group for terminal job control (those with a parent in a different
629 * process group of the same session). If that count reaches zero, the
630 * process group becomes orphaned. Check both the specified process'
631 * process group and that of its children.
632 * entering == 0 => p is leaving specified group.
633 * entering == 1 => p is entering specified group.
636 fixjobc(p, pgrp, entering)
637 register struct proc *p;
638 register struct pgrp *pgrp;
641 register struct pgrp *hispgrp;
642 register struct session *mysession;
644 sx_assert(&proctree_lock, SX_LOCKED);
645 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
646 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
647 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
650 * Check p's parent to see whether p qualifies its own process
651 * group; if so, adjust count for p's process group.
653 mysession = pgrp->pg_session;
654 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
655 hispgrp->pg_session == mysession)
656 pgadjustjobc(pgrp, entering);
659 * Check this process' children to see whether they qualify
660 * their process groups; if so, adjust counts for children's
663 LIST_FOREACH(p, &p->p_children, p_sibling) {
665 if (hispgrp == pgrp ||
666 hispgrp->pg_session != mysession)
669 if (p->p_state == PRS_ZOMBIE) {
674 pgadjustjobc(hispgrp, entering);
679 * A process group has become orphaned;
680 * if there are any stopped processes in the group,
681 * hang-up all process in that group.
687 register struct proc *p;
689 PGRP_LOCK_ASSERT(pg, MA_OWNED);
691 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
693 if (P_SHOULDSTOP(p)) {
695 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
697 kern_psignal(p, SIGHUP);
698 kern_psignal(p, SIGCONT);
708 sess_hold(struct session *s)
711 refcount_acquire(&s->s_count);
715 sess_release(struct session *s)
718 if (refcount_release(&s->s_count)) {
719 if (s->s_ttyp != NULL) {
721 tty_rel_sess(s->s_ttyp, s);
723 mtx_destroy(&s->s_mtx);
732 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
734 register struct pgrp *pgrp;
735 register struct proc *p;
738 for (i = 0; i <= pgrphash; i++) {
739 if (!LIST_EMPTY(&pgrphashtbl[i])) {
740 printf("\tindx %d\n", i);
741 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
743 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
744 (void *)pgrp, (long)pgrp->pg_id,
745 (void *)pgrp->pg_session,
746 pgrp->pg_session->s_count,
747 (void *)LIST_FIRST(&pgrp->pg_members));
748 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
749 printf("\t\tpid %ld addr %p pgrp %p\n",
750 (long)p->p_pid, (void *)p,
760 * Calculate the kinfo_proc members which contain process-wide
762 * Must be called with the target process locked.
765 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
769 PROC_LOCK_ASSERT(p, MA_OWNED);
773 FOREACH_THREAD_IN_PROC(p, td) {
775 kp->ki_pctcpu += sched_pctcpu(td);
776 kp->ki_estcpu += td->td_estcpu;
782 * Clear kinfo_proc and fill in any information that is common
783 * to all threads in the process.
784 * Must be called with the target process locked.
787 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
795 PROC_LOCK_ASSERT(p, MA_OWNED);
796 bzero(kp, sizeof(*kp));
798 kp->ki_structsize = sizeof(*kp);
800 kp->ki_addr =/* p->p_addr; */0; /* XXX */
801 kp->ki_args = p->p_args;
802 kp->ki_textvp = p->p_textvp;
804 kp->ki_tracep = p->p_tracevp;
805 kp->ki_traceflag = p->p_traceflag;
808 kp->ki_vmspace = p->p_vmspace;
809 kp->ki_flag = p->p_flag;
810 kp->ki_flag2 = p->p_flag2;
813 kp->ki_uid = cred->cr_uid;
814 kp->ki_ruid = cred->cr_ruid;
815 kp->ki_svuid = cred->cr_svuid;
817 if (cred->cr_flags & CRED_FLAG_CAPMODE)
818 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
819 /* XXX bde doesn't like KI_NGROUPS */
820 if (cred->cr_ngroups > KI_NGROUPS) {
821 kp->ki_ngroups = KI_NGROUPS;
822 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
824 kp->ki_ngroups = cred->cr_ngroups;
825 bcopy(cred->cr_groups, kp->ki_groups,
826 kp->ki_ngroups * sizeof(gid_t));
827 kp->ki_rgid = cred->cr_rgid;
828 kp->ki_svgid = cred->cr_svgid;
829 /* If jailed(cred), emulate the old P_JAILED flag. */
831 kp->ki_flag |= P_JAILED;
832 /* If inside the jail, use 0 as a jail ID. */
833 if (cred->cr_prison != curthread->td_ucred->cr_prison)
834 kp->ki_jid = cred->cr_prison->pr_id;
836 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
837 sizeof(kp->ki_loginclass));
841 mtx_lock(&ps->ps_mtx);
842 kp->ki_sigignore = ps->ps_sigignore;
843 kp->ki_sigcatch = ps->ps_sigcatch;
844 mtx_unlock(&ps->ps_mtx);
846 if (p->p_state != PRS_NEW &&
847 p->p_state != PRS_ZOMBIE &&
848 p->p_vmspace != NULL) {
849 struct vmspace *vm = p->p_vmspace;
851 kp->ki_size = vm->vm_map.size;
852 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
853 FOREACH_THREAD_IN_PROC(p, td0) {
854 if (!TD_IS_SWAPPED(td0))
855 kp->ki_rssize += td0->td_kstack_pages;
857 kp->ki_swrss = vm->vm_swrss;
858 kp->ki_tsize = vm->vm_tsize;
859 kp->ki_dsize = vm->vm_dsize;
860 kp->ki_ssize = vm->vm_ssize;
861 } else if (p->p_state == PRS_ZOMBIE)
863 if (kp->ki_flag & P_INMEM)
864 kp->ki_sflag = PS_INMEM;
867 /* Calculate legacy swtime as seconds since 'swtick'. */
868 kp->ki_swtime = (ticks - p->p_swtick) / hz;
869 kp->ki_pid = p->p_pid;
870 kp->ki_nice = p->p_nice;
871 kp->ki_fibnum = p->p_fibnum;
872 kp->ki_start = p->p_stats->p_start;
873 timevaladd(&kp->ki_start, &boottime);
875 rufetch(p, &kp->ki_rusage);
876 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
877 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
879 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
880 /* Some callers want child times in a single value. */
881 kp->ki_childtime = kp->ki_childstime;
882 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
884 FOREACH_THREAD_IN_PROC(p, td0)
885 kp->ki_cow += td0->td_cow;
889 kp->ki_pgid = p->p_pgrp->pg_id;
890 kp->ki_jobc = p->p_pgrp->pg_jobc;
891 sp = p->p_pgrp->pg_session;
894 kp->ki_sid = sp->s_sid;
896 strlcpy(kp->ki_login, sp->s_login,
897 sizeof(kp->ki_login));
899 kp->ki_kiflag |= KI_CTTY;
901 kp->ki_kiflag |= KI_SLEADER;
902 /* XXX proctree_lock */
907 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
908 kp->ki_tdev = tty_udev(tp);
909 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
911 kp->ki_tsid = tp->t_session->s_sid;
914 if (p->p_comm[0] != '\0')
915 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
916 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
917 p->p_sysent->sv_name[0] != '\0')
918 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
919 kp->ki_siglist = p->p_siglist;
920 kp->ki_xstat = p->p_xstat;
921 kp->ki_acflag = p->p_acflag;
922 kp->ki_lock = p->p_lock;
924 kp->ki_ppid = p->p_pptr->p_pid;
928 * Fill in information that is thread specific. Must be called with
929 * target process locked. If 'preferthread' is set, overwrite certain
930 * process-related fields that are maintained for both threads and
934 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
940 PROC_LOCK_ASSERT(p, MA_OWNED);
945 if (td->td_wmesg != NULL)
946 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
948 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
949 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
950 if (TD_ON_LOCK(td)) {
951 kp->ki_kiflag |= KI_LOCKBLOCK;
952 strlcpy(kp->ki_lockname, td->td_lockname,
953 sizeof(kp->ki_lockname));
955 kp->ki_kiflag &= ~KI_LOCKBLOCK;
956 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
959 if (p->p_state == PRS_NORMAL) { /* approximate. */
960 if (TD_ON_RUNQ(td) ||
964 } else if (P_SHOULDSTOP(p)) {
966 } else if (TD_IS_SLEEPING(td)) {
967 kp->ki_stat = SSLEEP;
968 } else if (TD_ON_LOCK(td)) {
973 } else if (p->p_state == PRS_ZOMBIE) {
979 /* Things in the thread */
980 kp->ki_wchan = td->td_wchan;
981 kp->ki_pri.pri_level = td->td_priority;
982 kp->ki_pri.pri_native = td->td_base_pri;
983 kp->ki_lastcpu = td->td_lastcpu;
984 kp->ki_oncpu = td->td_oncpu;
985 kp->ki_tdflags = td->td_flags;
986 kp->ki_tid = td->td_tid;
987 kp->ki_numthreads = p->p_numthreads;
988 kp->ki_pcb = td->td_pcb;
989 kp->ki_kstack = (void *)td->td_kstack;
990 kp->ki_slptime = (ticks - td->td_slptick) / hz;
991 kp->ki_pri.pri_class = td->td_pri_class;
992 kp->ki_pri.pri_user = td->td_user_pri;
995 rufetchtd(td, &kp->ki_rusage);
996 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
997 kp->ki_pctcpu = sched_pctcpu(td);
998 kp->ki_estcpu = td->td_estcpu;
999 kp->ki_cow = td->td_cow;
1002 /* We can't get this anymore but ps etc never used it anyway. */
1006 kp->ki_siglist = td->td_siglist;
1007 kp->ki_sigmask = td->td_sigmask;
1014 * Fill in a kinfo_proc structure for the specified process.
1015 * Must be called with the target process locked.
1018 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1021 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1023 fill_kinfo_proc_only(p, kp);
1024 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1025 fill_kinfo_aggregate(p, kp);
1032 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1036 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1039 pstats_fork(struct pstats *src, struct pstats *dst)
1042 bzero(&dst->pstat_startzero,
1043 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1044 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1045 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1049 pstats_free(struct pstats *ps)
1052 free(ps, M_SUBPROC);
1055 static struct proc *
1056 zpfind_locked(pid_t pid)
1060 sx_assert(&allproc_lock, SX_LOCKED);
1061 LIST_FOREACH(p, &zombproc, p_list) {
1062 if (p->p_pid == pid) {
1071 * Locate a zombie process by number
1078 sx_slock(&allproc_lock);
1079 p = zpfind_locked(pid);
1080 sx_sunlock(&allproc_lock);
1084 #ifdef COMPAT_FREEBSD32
1087 * This function is typically used to copy out the kernel address, so
1088 * it can be replaced by assignment of zero.
1090 static inline uint32_t
1091 ptr32_trim(void *ptr)
1095 uptr = (uintptr_t)ptr;
1096 return ((uptr > UINT_MAX) ? 0 : uptr);
1099 #define PTRTRIM_CP(src,dst,fld) \
1100 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1103 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1107 bzero(ki32, sizeof(struct kinfo_proc32));
1108 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1109 CP(*ki, *ki32, ki_layout);
1110 PTRTRIM_CP(*ki, *ki32, ki_args);
1111 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1112 PTRTRIM_CP(*ki, *ki32, ki_addr);
1113 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1114 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1115 PTRTRIM_CP(*ki, *ki32, ki_fd);
1116 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1117 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1118 CP(*ki, *ki32, ki_pid);
1119 CP(*ki, *ki32, ki_ppid);
1120 CP(*ki, *ki32, ki_pgid);
1121 CP(*ki, *ki32, ki_tpgid);
1122 CP(*ki, *ki32, ki_sid);
1123 CP(*ki, *ki32, ki_tsid);
1124 CP(*ki, *ki32, ki_jobc);
1125 CP(*ki, *ki32, ki_tdev);
1126 CP(*ki, *ki32, ki_siglist);
1127 CP(*ki, *ki32, ki_sigmask);
1128 CP(*ki, *ki32, ki_sigignore);
1129 CP(*ki, *ki32, ki_sigcatch);
1130 CP(*ki, *ki32, ki_uid);
1131 CP(*ki, *ki32, ki_ruid);
1132 CP(*ki, *ki32, ki_svuid);
1133 CP(*ki, *ki32, ki_rgid);
1134 CP(*ki, *ki32, ki_svgid);
1135 CP(*ki, *ki32, ki_ngroups);
1136 for (i = 0; i < KI_NGROUPS; i++)
1137 CP(*ki, *ki32, ki_groups[i]);
1138 CP(*ki, *ki32, ki_size);
1139 CP(*ki, *ki32, ki_rssize);
1140 CP(*ki, *ki32, ki_swrss);
1141 CP(*ki, *ki32, ki_tsize);
1142 CP(*ki, *ki32, ki_dsize);
1143 CP(*ki, *ki32, ki_ssize);
1144 CP(*ki, *ki32, ki_xstat);
1145 CP(*ki, *ki32, ki_acflag);
1146 CP(*ki, *ki32, ki_pctcpu);
1147 CP(*ki, *ki32, ki_estcpu);
1148 CP(*ki, *ki32, ki_slptime);
1149 CP(*ki, *ki32, ki_swtime);
1150 CP(*ki, *ki32, ki_cow);
1151 CP(*ki, *ki32, ki_runtime);
1152 TV_CP(*ki, *ki32, ki_start);
1153 TV_CP(*ki, *ki32, ki_childtime);
1154 CP(*ki, *ki32, ki_flag);
1155 CP(*ki, *ki32, ki_kiflag);
1156 CP(*ki, *ki32, ki_traceflag);
1157 CP(*ki, *ki32, ki_stat);
1158 CP(*ki, *ki32, ki_nice);
1159 CP(*ki, *ki32, ki_lock);
1160 CP(*ki, *ki32, ki_rqindex);
1161 CP(*ki, *ki32, ki_oncpu);
1162 CP(*ki, *ki32, ki_lastcpu);
1163 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1164 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1165 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1166 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1167 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1168 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1169 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1170 CP(*ki, *ki32, ki_flag2);
1171 CP(*ki, *ki32, ki_fibnum);
1172 CP(*ki, *ki32, ki_cr_flags);
1173 CP(*ki, *ki32, ki_jid);
1174 CP(*ki, *ki32, ki_numthreads);
1175 CP(*ki, *ki32, ki_tid);
1176 CP(*ki, *ki32, ki_pri);
1177 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1178 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1179 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1180 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1181 PTRTRIM_CP(*ki, *ki32, ki_udata);
1182 CP(*ki, *ki32, ki_sflag);
1183 CP(*ki, *ki32, ki_tdflags);
1188 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1191 struct kinfo_proc ki;
1192 #ifdef COMPAT_FREEBSD32
1193 struct kinfo_proc32 ki32;
1197 PROC_LOCK_ASSERT(p, MA_OWNED);
1198 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1201 fill_kinfo_proc(p, &ki);
1202 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1203 #ifdef COMPAT_FREEBSD32
1204 if ((flags & KERN_PROC_MASK32) != 0) {
1205 freebsd32_kinfo_proc_out(&ki, &ki32);
1206 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1209 error = sbuf_bcat(sb, &ki, sizeof(ki));
1211 FOREACH_THREAD_IN_PROC(p, td) {
1212 fill_kinfo_thread(td, &ki, 1);
1213 #ifdef COMPAT_FREEBSD32
1214 if ((flags & KERN_PROC_MASK32) != 0) {
1215 freebsd32_kinfo_proc_out(&ki, &ki32);
1216 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1219 error = sbuf_bcat(sb, &ki, sizeof(ki));
1229 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1233 struct kinfo_proc ki;
1239 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1240 error = kern_proc_out(p, &sb, flags);
1241 error2 = sbuf_finish(&sb);
1245 else if (error2 != 0)
1265 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1267 int *name = (int *)arg1;
1268 u_int namelen = arg2;
1270 int flags, doingzomb, oid_number;
1273 oid_number = oidp->oid_number;
1274 if (oid_number != KERN_PROC_ALL &&
1275 (oid_number & KERN_PROC_INC_THREAD) == 0)
1276 flags = KERN_PROC_NOTHREADS;
1279 oid_number &= ~KERN_PROC_INC_THREAD;
1281 #ifdef COMPAT_FREEBSD32
1282 if (req->flags & SCTL_MASK32)
1283 flags |= KERN_PROC_MASK32;
1285 if (oid_number == KERN_PROC_PID) {
1288 error = sysctl_wire_old_buffer(req, 0);
1291 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1294 error = sysctl_out_proc(p, req, flags, 0);
1298 switch (oid_number) {
1303 case KERN_PROC_PROC:
1304 if (namelen != 0 && namelen != 1)
1314 /* overestimate by 5 procs */
1315 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1319 error = sysctl_wire_old_buffer(req, 0);
1322 sx_slock(&allproc_lock);
1323 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1325 p = LIST_FIRST(&allproc);
1327 p = LIST_FIRST(&zombproc);
1328 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1330 * Skip embryonic processes.
1333 if (p->p_state == PRS_NEW) {
1337 KASSERT(p->p_ucred != NULL,
1338 ("process credential is NULL for non-NEW proc"));
1340 * Show a user only appropriate processes.
1342 if (p_cansee(curthread, p)) {
1347 * TODO - make more efficient (see notes below).
1350 switch (oid_number) {
1353 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1359 case KERN_PROC_PGRP:
1360 /* could do this by traversing pgrp */
1361 if (p->p_pgrp == NULL ||
1362 p->p_pgrp->pg_id != (pid_t)name[0]) {
1368 case KERN_PROC_RGID:
1369 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1375 case KERN_PROC_SESSION:
1376 if (p->p_session == NULL ||
1377 p->p_session->s_sid != (pid_t)name[0]) {
1384 if ((p->p_flag & P_CONTROLT) == 0 ||
1385 p->p_session == NULL) {
1389 /* XXX proctree_lock */
1390 SESS_LOCK(p->p_session);
1391 if (p->p_session->s_ttyp == NULL ||
1392 tty_udev(p->p_session->s_ttyp) !=
1394 SESS_UNLOCK(p->p_session);
1398 SESS_UNLOCK(p->p_session);
1402 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1408 case KERN_PROC_RUID:
1409 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1415 case KERN_PROC_PROC:
1423 error = sysctl_out_proc(p, req, flags, doingzomb);
1425 sx_sunlock(&allproc_lock);
1430 sx_sunlock(&allproc_lock);
1435 pargs_alloc(int len)
1439 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1441 refcount_init(&pa->ar_ref, 1);
1442 pa->ar_length = len;
1447 pargs_free(struct pargs *pa)
1454 pargs_hold(struct pargs *pa)
1459 refcount_acquire(&pa->ar_ref);
1463 pargs_drop(struct pargs *pa)
1468 if (refcount_release(&pa->ar_ref))
1473 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1479 iov.iov_base = (caddr_t)buf;
1483 uio.uio_offset = offset;
1484 uio.uio_resid = (ssize_t)len;
1485 uio.uio_segflg = UIO_SYSSPACE;
1486 uio.uio_rw = UIO_READ;
1489 return (proc_rwmem(p, &uio));
1493 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1499 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1501 * Reading the chunk may validly return EFAULT if the string is shorter
1502 * than the chunk and is aligned at the end of the page, assuming the
1503 * next page is not mapped. So if EFAULT is returned do a fallback to
1504 * one byte read loop.
1506 if (error == EFAULT) {
1507 for (i = 0; i < len; i++, buf++, sptr++) {
1508 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1519 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1521 enum proc_vector_type {
1527 #ifdef COMPAT_FREEBSD32
1529 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1530 size_t *vsizep, enum proc_vector_type type)
1532 struct freebsd32_ps_strings pss;
1534 vm_offset_t vptr, ptr;
1535 uint32_t *proc_vector32;
1540 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1546 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1547 vsize = pss.ps_nargvstr;
1548 if (vsize > ARG_MAX)
1550 size = vsize * sizeof(int32_t);
1553 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1554 vsize = pss.ps_nenvstr;
1555 if (vsize > ARG_MAX)
1557 size = vsize * sizeof(int32_t);
1560 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1561 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1564 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1565 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1568 if (aux.a_type == AT_NULL)
1572 if (aux.a_type != AT_NULL)
1575 size = vsize * sizeof(aux);
1578 KASSERT(0, ("Wrong proc vector type: %d", type));
1581 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1582 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1585 if (type == PROC_AUX) {
1586 *proc_vectorp = (char **)proc_vector32;
1590 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1591 for (i = 0; i < (int)vsize; i++)
1592 proc_vector[i] = PTRIN(proc_vector32[i]);
1593 *proc_vectorp = proc_vector;
1596 free(proc_vector32, M_TEMP);
1602 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1603 size_t *vsizep, enum proc_vector_type type)
1605 struct ps_strings pss;
1607 vm_offset_t vptr, ptr;
1612 #ifdef COMPAT_FREEBSD32
1613 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1614 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1616 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1622 vptr = (vm_offset_t)pss.ps_argvstr;
1623 vsize = pss.ps_nargvstr;
1624 if (vsize > ARG_MAX)
1626 size = vsize * sizeof(char *);
1629 vptr = (vm_offset_t)pss.ps_envstr;
1630 vsize = pss.ps_nenvstr;
1631 if (vsize > ARG_MAX)
1633 size = vsize * sizeof(char *);
1637 * The aux array is just above env array on the stack. Check
1638 * that the address is naturally aligned.
1640 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1642 #if __ELF_WORD_SIZE == 64
1643 if (vptr % sizeof(uint64_t) != 0)
1645 if (vptr % sizeof(uint32_t) != 0)
1649 * We count the array size reading the aux vectors from the
1650 * stack until AT_NULL vector is returned. So (to keep the code
1651 * simple) we read the process stack twice: the first time here
1652 * to find the size and the second time when copying the vectors
1653 * to the allocated proc_vector.
1655 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1656 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1659 if (aux.a_type == AT_NULL)
1664 * If the PROC_AUXV_MAX entries are iterated over, and we have
1665 * not reached AT_NULL, it is most likely we are reading wrong
1666 * data: either the process doesn't have auxv array or data has
1667 * been modified. Return the error in this case.
1669 if (aux.a_type != AT_NULL)
1672 size = vsize * sizeof(aux);
1675 KASSERT(0, ("Wrong proc vector type: %d", type));
1676 return (EINVAL); /* In case we are built without INVARIANTS. */
1678 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1679 if (proc_vector == NULL)
1681 error = proc_read_mem(td, p, vptr, proc_vector, size);
1683 free(proc_vector, M_TEMP);
1686 *proc_vectorp = proc_vector;
1692 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1695 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1696 enum proc_vector_type type)
1698 size_t done, len, nchr, vsize;
1700 char **proc_vector, *sptr;
1701 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1703 PROC_ASSERT_HELD(p);
1706 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1708 nchr = 2 * (PATH_MAX + ARG_MAX);
1710 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1713 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1715 * The program may have scribbled into its argv array, e.g. to
1716 * remove some arguments. If that has happened, break out
1717 * before trying to read from NULL.
1719 if (proc_vector[i] == NULL)
1721 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1722 error = proc_read_string(td, p, sptr, pss_string,
1723 sizeof(pss_string));
1726 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1727 if (done + len >= nchr)
1728 len = nchr - done - 1;
1729 sbuf_bcat(sb, pss_string, len);
1730 if (len != GET_PS_STRINGS_CHUNK_SZ)
1732 done += GET_PS_STRINGS_CHUNK_SZ;
1734 sbuf_bcat(sb, "", 1);
1738 free(proc_vector, M_TEMP);
1743 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1746 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1750 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1753 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1757 proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb)
1763 error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX);
1765 #ifdef COMPAT_FREEBSD32
1766 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1767 size = vsize * sizeof(Elf32_Auxinfo);
1770 size = vsize * sizeof(Elf_Auxinfo);
1771 error = sbuf_bcat(sb, auxv, size);
1778 * This sysctl allows a process to retrieve the argument list or process
1779 * title for another process without groping around in the address space
1780 * of the other process. It also allow a process to set its own "process
1781 * title to a string of its own choice.
1784 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1786 int *name = (int *)arg1;
1787 u_int namelen = arg2;
1788 struct pargs *newpa, *pa;
1791 int flags, error = 0, error2;
1796 flags = PGET_CANSEE;
1797 if (req->newptr != NULL)
1798 flags |= PGET_ISCURRENT;
1799 error = pget((pid_t)name[0], flags, &p);
1807 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1809 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1812 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1813 error = proc_getargv(curthread, p, &sb);
1814 error2 = sbuf_finish(&sb);
1817 if (error == 0 && error2 != 0)
1822 if (error != 0 || req->newptr == NULL)
1825 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1827 newpa = pargs_alloc(req->newlen);
1828 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1842 * This sysctl allows a process to retrieve environment of another process.
1845 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1847 int *name = (int *)arg1;
1848 u_int namelen = arg2;
1856 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1859 if ((p->p_flag & P_SYSTEM) != 0) {
1864 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1865 error = proc_getenvv(curthread, p, &sb);
1866 error2 = sbuf_finish(&sb);
1869 return (error != 0 ? error : error2);
1873 * This sysctl allows a process to retrieve ELF auxiliary vector of
1877 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1879 int *name = (int *)arg1;
1880 u_int namelen = arg2;
1888 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1891 if ((p->p_flag & P_SYSTEM) != 0) {
1895 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1896 error = proc_getauxv(curthread, p, &sb);
1897 error2 = sbuf_finish(&sb);
1900 return (error != 0 ? error : error2);
1904 * This sysctl allows a process to retrieve the path of the executable for
1905 * itself or another process.
1908 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1910 pid_t *pidp = (pid_t *)arg1;
1911 unsigned int arglen = arg2;
1914 char *retbuf, *freebuf;
1915 int error, vfslocked;
1919 if (*pidp == -1) { /* -1 means this process */
1920 p = req->td->td_proc;
1922 error = pget(*pidp, PGET_CANSEE, &p);
1936 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1937 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
1939 VFS_UNLOCK_GIANT(vfslocked);
1942 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1943 free(freebuf, M_TEMP);
1948 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1961 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1964 sv_name = p->p_sysent->sv_name;
1966 return (sysctl_handle_string(oidp, sv_name, 0, req));
1969 #ifdef KINFO_OVMENTRY_SIZE
1970 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1973 #ifdef COMPAT_FREEBSD7
1975 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1977 vm_map_entry_t entry, tmp_entry;
1978 unsigned int last_timestamp;
1979 char *fullpath, *freepath;
1980 struct kinfo_ovmentry *kve;
1990 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1993 vm = vmspace_acquire_ref(p);
1998 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2001 vm_map_lock_read(map);
2002 for (entry = map->header.next; entry != &map->header;
2003 entry = entry->next) {
2004 vm_object_t obj, tobj, lobj;
2008 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2011 bzero(kve, sizeof(*kve));
2012 kve->kve_structsize = sizeof(*kve);
2014 kve->kve_private_resident = 0;
2015 obj = entry->object.vm_object;
2017 VM_OBJECT_LOCK(obj);
2018 if (obj->shadow_count == 1)
2019 kve->kve_private_resident =
2020 obj->resident_page_count;
2022 kve->kve_resident = 0;
2023 addr = entry->start;
2024 while (addr < entry->end) {
2025 if (pmap_extract(map->pmap, addr))
2026 kve->kve_resident++;
2030 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2032 VM_OBJECT_LOCK(tobj);
2034 VM_OBJECT_UNLOCK(lobj);
2038 kve->kve_start = (void*)entry->start;
2039 kve->kve_end = (void*)entry->end;
2040 kve->kve_offset = (off_t)entry->offset;
2042 if (entry->protection & VM_PROT_READ)
2043 kve->kve_protection |= KVME_PROT_READ;
2044 if (entry->protection & VM_PROT_WRITE)
2045 kve->kve_protection |= KVME_PROT_WRITE;
2046 if (entry->protection & VM_PROT_EXECUTE)
2047 kve->kve_protection |= KVME_PROT_EXEC;
2049 if (entry->eflags & MAP_ENTRY_COW)
2050 kve->kve_flags |= KVME_FLAG_COW;
2051 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2052 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2053 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2054 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2056 last_timestamp = map->timestamp;
2057 vm_map_unlock_read(map);
2059 kve->kve_fileid = 0;
2065 switch (lobj->type) {
2067 kve->kve_type = KVME_TYPE_DEFAULT;
2070 kve->kve_type = KVME_TYPE_VNODE;
2075 kve->kve_type = KVME_TYPE_SWAP;
2078 kve->kve_type = KVME_TYPE_DEVICE;
2081 kve->kve_type = KVME_TYPE_PHYS;
2084 kve->kve_type = KVME_TYPE_DEAD;
2087 kve->kve_type = KVME_TYPE_SG;
2090 kve->kve_type = KVME_TYPE_UNKNOWN;
2094 VM_OBJECT_UNLOCK(lobj);
2096 kve->kve_ref_count = obj->ref_count;
2097 kve->kve_shadow_count = obj->shadow_count;
2098 VM_OBJECT_UNLOCK(obj);
2100 vn_fullpath(curthread, vp, &fullpath,
2102 cred = curthread->td_ucred;
2103 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2104 vn_lock(vp, LK_SHARED | LK_RETRY);
2105 if (VOP_GETATTR(vp, &va, cred) == 0) {
2106 kve->kve_fileid = va.va_fileid;
2107 kve->kve_fsid = va.va_fsid;
2110 VFS_UNLOCK_GIANT(vfslocked);
2113 kve->kve_type = KVME_TYPE_NONE;
2114 kve->kve_ref_count = 0;
2115 kve->kve_shadow_count = 0;
2118 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2119 if (freepath != NULL)
2120 free(freepath, M_TEMP);
2122 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2123 vm_map_lock_read(map);
2126 if (last_timestamp != map->timestamp) {
2127 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2131 vm_map_unlock_read(map);
2137 #endif /* COMPAT_FREEBSD7 */
2139 #ifdef KINFO_VMENTRY_SIZE
2140 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2144 * Must be called with the process locked and will return unlocked.
2147 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2149 vm_map_entry_t entry, tmp_entry;
2150 unsigned int last_timestamp;
2151 char *fullpath, *freepath;
2152 struct kinfo_vmentry *kve;
2160 PROC_LOCK_ASSERT(p, MA_OWNED);
2164 vm = vmspace_acquire_ref(p);
2169 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2173 vm_map_lock_read(map);
2174 for (entry = map->header.next; entry != &map->header;
2175 entry = entry->next) {
2176 vm_object_t obj, tobj, lobj;
2178 vm_paddr_t locked_pa;
2179 int vfslocked, mincoreinfo;
2181 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2184 bzero(kve, sizeof(*kve));
2186 kve->kve_private_resident = 0;
2187 obj = entry->object.vm_object;
2189 VM_OBJECT_LOCK(obj);
2190 if (obj->shadow_count == 1)
2191 kve->kve_private_resident =
2192 obj->resident_page_count;
2194 kve->kve_resident = 0;
2195 addr = entry->start;
2196 if (vmmap_skip_res_cnt)
2197 goto skip_resident_count;
2198 while (addr < entry->end) {
2200 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2202 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2203 if (mincoreinfo & MINCORE_INCORE)
2204 kve->kve_resident++;
2205 if (mincoreinfo & MINCORE_SUPER)
2206 kve->kve_flags |= KVME_FLAG_SUPER;
2210 skip_resident_count:
2211 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2213 VM_OBJECT_LOCK(tobj);
2215 VM_OBJECT_UNLOCK(lobj);
2219 kve->kve_start = entry->start;
2220 kve->kve_end = entry->end;
2221 kve->kve_offset = entry->offset;
2223 if (entry->protection & VM_PROT_READ)
2224 kve->kve_protection |= KVME_PROT_READ;
2225 if (entry->protection & VM_PROT_WRITE)
2226 kve->kve_protection |= KVME_PROT_WRITE;
2227 if (entry->protection & VM_PROT_EXECUTE)
2228 kve->kve_protection |= KVME_PROT_EXEC;
2230 if (entry->eflags & MAP_ENTRY_COW)
2231 kve->kve_flags |= KVME_FLAG_COW;
2232 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2233 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2234 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2235 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2236 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2237 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2238 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2239 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2241 last_timestamp = map->timestamp;
2242 vm_map_unlock_read(map);
2248 switch (lobj->type) {
2250 kve->kve_type = KVME_TYPE_DEFAULT;
2253 kve->kve_type = KVME_TYPE_VNODE;
2258 kve->kve_type = KVME_TYPE_SWAP;
2261 kve->kve_type = KVME_TYPE_DEVICE;
2264 kve->kve_type = KVME_TYPE_PHYS;
2267 kve->kve_type = KVME_TYPE_DEAD;
2270 kve->kve_type = KVME_TYPE_SG;
2272 case OBJT_MGTDEVICE:
2273 kve->kve_type = KVME_TYPE_MGTDEVICE;
2276 kve->kve_type = KVME_TYPE_UNKNOWN;
2280 VM_OBJECT_UNLOCK(lobj);
2282 kve->kve_ref_count = obj->ref_count;
2283 kve->kve_shadow_count = obj->shadow_count;
2284 VM_OBJECT_UNLOCK(obj);
2286 vn_fullpath(curthread, vp, &fullpath,
2288 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2289 cred = curthread->td_ucred;
2290 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2291 vn_lock(vp, LK_SHARED | LK_RETRY);
2292 if (VOP_GETATTR(vp, &va, cred) == 0) {
2293 kve->kve_vn_fileid = va.va_fileid;
2294 kve->kve_vn_fsid = va.va_fsid;
2296 MAKEIMODE(va.va_type, va.va_mode);
2297 kve->kve_vn_size = va.va_size;
2298 kve->kve_vn_rdev = va.va_rdev;
2299 kve->kve_status = KF_ATTR_VALID;
2302 VFS_UNLOCK_GIANT(vfslocked);
2305 kve->kve_type = KVME_TYPE_NONE;
2306 kve->kve_ref_count = 0;
2307 kve->kve_shadow_count = 0;
2310 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2311 if (freepath != NULL)
2312 free(freepath, M_TEMP);
2314 /* Pack record size down */
2315 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2316 strlen(kve->kve_path) + 1;
2317 kve->kve_structsize = roundup(kve->kve_structsize,
2319 error = sbuf_bcat(sb, kve, kve->kve_structsize);
2320 vm_map_lock_read(map);
2323 if (last_timestamp != map->timestamp) {
2324 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2328 vm_map_unlock_read(map);
2336 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2340 int error, error2, *name;
2343 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2344 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2349 error = kern_proc_vmmap_out(p, &sb);
2350 error2 = sbuf_finish(&sb);
2352 return (error != 0 ? error : error2);
2355 #if defined(STACK) || defined(DDB)
2357 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2359 struct kinfo_kstack *kkstp;
2360 int error, i, *name, numthreads;
2361 lwpid_t *lwpidarray;
2368 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2372 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2373 st = stack_create();
2379 if (numthreads < p->p_numthreads) {
2380 if (lwpidarray != NULL) {
2381 free(lwpidarray, M_TEMP);
2384 numthreads = p->p_numthreads;
2386 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2394 * XXXRW: During the below loop, execve(2) and countless other sorts
2395 * of changes could have taken place. Should we check to see if the
2396 * vmspace has been replaced, or the like, in order to prevent
2397 * giving a snapshot that spans, say, execve(2), with some threads
2398 * before and some after? Among other things, the credentials could
2399 * have changed, in which case the right to extract debug info might
2400 * no longer be assured.
2402 FOREACH_THREAD_IN_PROC(p, td) {
2403 KASSERT(i < numthreads,
2404 ("sysctl_kern_proc_kstack: numthreads"));
2405 lwpidarray[i] = td->td_tid;
2409 for (i = 0; i < numthreads; i++) {
2410 td = thread_find(p, lwpidarray[i]);
2414 bzero(kkstp, sizeof(*kkstp));
2415 (void)sbuf_new(&sb, kkstp->kkst_trace,
2416 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2418 kkstp->kkst_tid = td->td_tid;
2419 if (TD_IS_SWAPPED(td))
2420 kkstp->kkst_state = KKST_STATE_SWAPPED;
2421 else if (TD_IS_RUNNING(td))
2422 kkstp->kkst_state = KKST_STATE_RUNNING;
2424 kkstp->kkst_state = KKST_STATE_STACKOK;
2425 stack_save_td(st, td);
2429 stack_sbuf_print(&sb, st);
2432 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2439 if (lwpidarray != NULL)
2440 free(lwpidarray, M_TEMP);
2442 free(kkstp, M_TEMP);
2448 * This sysctl allows a process to retrieve the full list of groups from
2449 * itself or another process.
2452 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2454 pid_t *pidp = (pid_t *)arg1;
2455 unsigned int arglen = arg2;
2462 if (*pidp == -1) { /* -1 means this process */
2463 p = req->td->td_proc;
2465 error = pget(*pidp, PGET_CANSEE, &p);
2470 cred = crhold(p->p_ucred);
2474 error = SYSCTL_OUT(req, cred->cr_groups,
2475 cred->cr_ngroups * sizeof(gid_t));
2481 * This sysctl allows a process to retrieve or/and set the resource limit for
2485 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2487 int *name = (int *)arg1;
2488 u_int namelen = arg2;
2497 which = (u_int)name[1];
2498 if (which >= RLIM_NLIMITS)
2501 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2504 flags = PGET_HOLD | PGET_NOTWEXIT;
2505 if (req->newptr != NULL)
2506 flags |= PGET_CANDEBUG;
2508 flags |= PGET_CANSEE;
2509 error = pget((pid_t)name[0], flags, &p);
2516 if (req->oldptr != NULL) {
2518 lim_rlimit(p, which, &rlim);
2521 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2528 if (req->newptr != NULL) {
2529 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2531 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2540 * This sysctl allows a process to retrieve ps_strings structure location of
2544 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2546 int *name = (int *)arg1;
2547 u_int namelen = arg2;
2549 vm_offset_t ps_strings;
2551 #ifdef COMPAT_FREEBSD32
2552 uint32_t ps_strings32;
2558 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2561 #ifdef COMPAT_FREEBSD32
2562 if ((req->flags & SCTL_MASK32) != 0) {
2564 * We return 0 if the 32 bit emulation request is for a 64 bit
2567 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2568 PTROUT(p->p_sysent->sv_psstrings) : 0;
2570 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2574 ps_strings = p->p_sysent->sv_psstrings;
2576 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2581 * This sysctl allows a process to retrieve umask of another process.
2584 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2586 int *name = (int *)arg1;
2587 u_int namelen = arg2;
2595 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2599 FILEDESC_SLOCK(p->p_fd);
2600 fd_cmask = p->p_fd->fd_cmask;
2601 FILEDESC_SUNLOCK(p->p_fd);
2603 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2608 * This sysctl allows a process to set and retrieve binary osreldate of
2612 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2614 int *name = (int *)arg1;
2615 u_int namelen = arg2;
2617 int flags, error, osrel;
2622 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2625 flags = PGET_HOLD | PGET_NOTWEXIT;
2626 if (req->newptr != NULL)
2627 flags |= PGET_CANDEBUG;
2629 flags |= PGET_CANSEE;
2630 error = pget((pid_t)name[0], flags, &p);
2634 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2638 if (req->newptr != NULL) {
2639 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2654 sysctl_kern_proc_sigtramp(SYSCTL_HANDLER_ARGS)
2656 int *name = (int *)arg1;
2657 u_int namelen = arg2;
2659 struct kinfo_sigtramp kst;
2660 const struct sysentvec *sv;
2662 #ifdef COMPAT_FREEBSD32
2663 struct kinfo_sigtramp32 kst32;
2669 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2673 #ifdef COMPAT_FREEBSD32
2674 if ((req->flags & SCTL_MASK32) != 0) {
2675 bzero(&kst32, sizeof(kst32));
2676 if (SV_PROC_FLAG(p, SV_ILP32)) {
2677 if (sv->sv_sigcode_base != 0) {
2678 kst32.ksigtramp_start = sv->sv_sigcode_base;
2679 kst32.ksigtramp_end = sv->sv_sigcode_base +
2682 kst32.ksigtramp_start = sv->sv_psstrings -
2684 kst32.ksigtramp_end = sv->sv_psstrings;
2688 error = SYSCTL_OUT(req, &kst32, sizeof(kst32));
2692 bzero(&kst, sizeof(kst));
2693 if (sv->sv_sigcode_base != 0) {
2694 kst.ksigtramp_start = (char *)sv->sv_sigcode_base;
2695 kst.ksigtramp_end = (char *)sv->sv_sigcode_base +
2698 kst.ksigtramp_start = (char *)sv->sv_psstrings -
2700 kst.ksigtramp_end = (char *)sv->sv_psstrings;
2703 error = SYSCTL_OUT(req, &kst, sizeof(kst));
2707 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2709 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2710 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2711 "Return entire process table");
2713 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2714 sysctl_kern_proc, "Process table");
2716 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2717 sysctl_kern_proc, "Process table");
2719 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2720 sysctl_kern_proc, "Process table");
2722 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2723 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2725 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2726 sysctl_kern_proc, "Process table");
2728 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2729 sysctl_kern_proc, "Process table");
2731 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2732 sysctl_kern_proc, "Process table");
2734 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2735 sysctl_kern_proc, "Process table");
2737 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2738 sysctl_kern_proc, "Return process table, no threads");
2740 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2741 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2742 sysctl_kern_proc_args, "Process argument list");
2744 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2745 sysctl_kern_proc_env, "Process environment");
2747 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2748 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2750 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2751 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2753 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2754 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2755 "Process syscall vector name (ABI type)");
2757 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2758 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2760 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2761 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2763 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2764 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2766 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2767 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2769 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2770 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2772 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2773 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2775 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2776 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2778 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2779 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2781 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2782 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2783 "Return process table, no threads");
2785 #ifdef COMPAT_FREEBSD7
2786 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2787 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2790 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2791 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2793 #if defined(STACK) || defined(DDB)
2794 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2795 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2798 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2799 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2801 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2802 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2803 "Process resource limits");
2805 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2806 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2807 "Process ps_strings location");
2809 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2810 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2812 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2813 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2814 "Process binary osreldate");
2816 static SYSCTL_NODE(_kern_proc, KERN_PROC_SIGTRAMP, sigtramp, CTLFLAG_RD |
2817 CTLFLAG_MPSAFE, sysctl_kern_proc_sigtramp,
2818 "Process signal trampoline location");