2 * Copyright (c) 1982, 1986, 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
37 #include "opt_kdtrace.h"
38 #include "opt_ktrace.h"
39 #include "opt_kstack_pages.h"
40 #include "opt_stack.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/kernel.h>
47 #include <sys/limits.h>
49 #include <sys/loginclass.h>
50 #include <sys/malloc.h>
52 #include <sys/mount.h>
53 #include <sys/mutex.h>
55 #include <sys/ptrace.h>
56 #include <sys/refcount.h>
57 #include <sys/resourcevar.h>
59 #include <sys/sysent.h>
60 #include <sys/sched.h>
62 #include <sys/stack.h>
64 #include <sys/sysctl.h>
65 #include <sys/filedesc.h>
67 #include <sys/signalvar.h>
72 #include <sys/vnode.h>
73 #include <sys/eventhandler.h>
80 #include <vm/vm_param.h>
81 #include <vm/vm_extern.h>
83 #include <vm/vm_map.h>
84 #include <vm/vm_object.h>
85 #include <vm/vm_page.h>
88 #ifdef COMPAT_FREEBSD32
89 #include <compat/freebsd32/freebsd32.h>
90 #include <compat/freebsd32/freebsd32_util.h>
93 SDT_PROVIDER_DEFINE(proc);
94 SDT_PROBE_DEFINE(proc, kernel, ctor, entry, entry);
95 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 0, "struct proc *");
96 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 1, "int");
97 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 2, "void *");
98 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 3, "int");
99 SDT_PROBE_DEFINE(proc, kernel, ctor, return, return);
100 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 0, "struct proc *");
101 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 1, "int");
102 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 2, "void *");
103 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 3, "int");
104 SDT_PROBE_DEFINE(proc, kernel, dtor, entry, entry);
105 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 0, "struct proc *");
106 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 1, "int");
107 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 2, "void *");
108 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 3, "struct thread *");
109 SDT_PROBE_DEFINE(proc, kernel, dtor, return, return);
110 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 0, "struct proc *");
111 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 1, "int");
112 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 2, "void *");
113 SDT_PROBE_DEFINE(proc, kernel, init, entry, entry);
114 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 0, "struct proc *");
115 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 1, "int");
116 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 2, "int");
117 SDT_PROBE_DEFINE(proc, kernel, init, return, return);
118 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 0, "struct proc *");
119 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 1, "int");
120 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 2, "int");
122 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
123 MALLOC_DEFINE(M_SESSION, "session", "session header");
124 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
125 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
127 static void doenterpgrp(struct proc *, struct pgrp *);
128 static void orphanpg(struct pgrp *pg);
129 static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp);
130 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
131 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp,
133 static void pgadjustjobc(struct pgrp *pgrp, int entering);
134 static void pgdelete(struct pgrp *);
135 static int proc_ctor(void *mem, int size, void *arg, int flags);
136 static void proc_dtor(void *mem, int size, void *arg);
137 static int proc_init(void *mem, int size, int flags);
138 static void proc_fini(void *mem, int size);
139 static void pargs_free(struct pargs *pa);
140 static struct proc *zpfind_locked(pid_t pid);
143 * Other process lists
145 struct pidhashhead *pidhashtbl;
147 struct pgrphashhead *pgrphashtbl;
149 struct proclist allproc;
150 struct proclist zombproc;
151 struct sx allproc_lock;
152 struct sx proctree_lock;
153 struct mtx ppeers_lock;
154 uma_zone_t proc_zone;
156 int kstack_pages = KSTACK_PAGES;
157 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0,
158 "Kernel stack size in pages");
160 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
161 #ifdef COMPAT_FREEBSD32
162 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
166 * Initialize global process hashing structures.
172 sx_init(&allproc_lock, "allproc");
173 sx_init(&proctree_lock, "proctree");
174 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
176 LIST_INIT(&zombproc);
177 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
178 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
179 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
180 proc_ctor, proc_dtor, proc_init, proc_fini,
181 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
186 * Prepare a proc for use.
189 proc_ctor(void *mem, int size, void *arg, int flags)
193 p = (struct proc *)mem;
194 SDT_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0);
195 EVENTHANDLER_INVOKE(process_ctor, p);
196 SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0);
201 * Reclaim a proc after use.
204 proc_dtor(void *mem, int size, void *arg)
209 /* INVARIANTS checks go here */
210 p = (struct proc *)mem;
211 td = FIRST_THREAD_IN_PROC(p);
212 SDT_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0);
215 KASSERT((p->p_numthreads == 1),
216 ("bad number of threads in exiting process"));
217 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr"));
219 /* Free all OSD associated to this thread. */
222 EVENTHANDLER_INVOKE(process_dtor, p);
223 if (p->p_ksi != NULL)
224 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue"));
225 SDT_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0);
229 * Initialize type-stable parts of a proc (when newly created).
232 proc_init(void *mem, int size, int flags)
236 p = (struct proc *)mem;
237 SDT_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0);
238 p->p_sched = (struct p_sched *)&p[1];
239 bzero(&p->p_mtx, sizeof(struct mtx));
240 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
241 mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE);
242 cv_init(&p->p_pwait, "ppwait");
243 cv_init(&p->p_dbgwait, "dbgwait");
244 TAILQ_INIT(&p->p_threads); /* all threads in proc */
245 EVENTHANDLER_INVOKE(process_init, p);
246 p->p_stats = pstats_alloc();
247 SDT_PROBE(proc, kernel, init, return, p, size, flags, 0, 0);
252 * UMA should ensure that this function is never called.
253 * Freeing a proc structure would violate type stability.
256 proc_fini(void *mem, int size)
261 p = (struct proc *)mem;
262 EVENTHANDLER_INVOKE(process_fini, p);
263 pstats_free(p->p_stats);
264 thread_free(FIRST_THREAD_IN_PROC(p));
265 mtx_destroy(&p->p_mtx);
266 if (p->p_ksi != NULL)
267 ksiginfo_free(p->p_ksi);
269 panic("proc reclaimed");
274 * Is p an inferior of the current process?
278 register struct proc *p;
281 sx_assert(&proctree_lock, SX_LOCKED);
282 for (; p != curproc; p = p->p_pptr)
289 pfind_locked(pid_t pid)
293 sx_assert(&allproc_lock, SX_LOCKED);
294 LIST_FOREACH(p, PIDHASH(pid), p_hash) {
295 if (p->p_pid == pid) {
297 if (p->p_state == PRS_NEW) {
308 * Locate a process by number; return only "live" processes -- i.e., neither
309 * zombies nor newly born but incompletely initialized processes. By not
310 * returning processes in the PRS_NEW state, we allow callers to avoid
311 * testing for that condition to avoid dereferencing p_ucred, et al.
318 sx_slock(&allproc_lock);
319 p = pfind_locked(pid);
320 sx_sunlock(&allproc_lock);
325 pfind_tid_locked(pid_t tid)
330 sx_assert(&allproc_lock, SX_LOCKED);
331 FOREACH_PROC_IN_SYSTEM(p) {
333 if (p->p_state == PRS_NEW) {
337 FOREACH_THREAD_IN_PROC(p, td) {
338 if (td->td_tid == tid)
348 * Locate a process group by number.
349 * The caller must hold proctree_lock.
355 register struct pgrp *pgrp;
357 sx_assert(&proctree_lock, SX_LOCKED);
359 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
360 if (pgrp->pg_id == pgid) {
369 * Locate process and do additional manipulations, depending on flags.
372 pget(pid_t pid, int flags, struct proc **pp)
377 sx_slock(&allproc_lock);
378 if (pid <= PID_MAX) {
379 p = pfind_locked(pid);
380 if (p == NULL && (flags & PGET_NOTWEXIT) == 0)
381 p = zpfind_locked(pid);
382 } else if ((flags & PGET_NOTID) == 0) {
383 p = pfind_tid_locked(pid);
387 sx_sunlock(&allproc_lock);
390 if ((flags & PGET_CANSEE) != 0) {
391 error = p_cansee(curthread, p);
395 if ((flags & PGET_CANDEBUG) != 0) {
396 error = p_candebug(curthread, p);
400 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
404 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
408 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
410 * XXXRW: Not clear ESRCH is the right error during proc
416 if ((flags & PGET_HOLD) != 0) {
428 * Create a new process group.
429 * pgid must be equal to the pid of p.
430 * Begin a new session if required.
433 enterpgrp(p, pgid, pgrp, sess)
434 register struct proc *p;
437 struct session *sess;
440 sx_assert(&proctree_lock, SX_XLOCKED);
442 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
443 KASSERT(p->p_pid == pgid,
444 ("enterpgrp: new pgrp and pid != pgid"));
445 KASSERT(pgfind(pgid) == NULL,
446 ("enterpgrp: pgrp with pgid exists"));
447 KASSERT(!SESS_LEADER(p),
448 ("enterpgrp: session leader attempted setpgrp"));
450 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
456 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
458 p->p_flag &= ~P_CONTROLT;
462 sess->s_sid = p->p_pid;
463 refcount_init(&sess->s_count, 1);
464 sess->s_ttyvp = NULL;
465 sess->s_ttydp = NULL;
467 bcopy(p->p_session->s_login, sess->s_login,
468 sizeof(sess->s_login));
469 pgrp->pg_session = sess;
470 KASSERT(p == curproc,
471 ("enterpgrp: mksession and p != curproc"));
473 pgrp->pg_session = p->p_session;
474 sess_hold(pgrp->pg_session);
478 LIST_INIT(&pgrp->pg_members);
481 * As we have an exclusive lock of proctree_lock,
482 * this should not deadlock.
484 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
486 SLIST_INIT(&pgrp->pg_sigiolst);
489 doenterpgrp(p, pgrp);
495 * Move p to an existing process group
498 enterthispgrp(p, pgrp)
499 register struct proc *p;
503 sx_assert(&proctree_lock, SX_XLOCKED);
504 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
505 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
506 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
507 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
508 KASSERT(pgrp->pg_session == p->p_session,
509 ("%s: pgrp's session %p, p->p_session %p.\n",
513 KASSERT(pgrp != p->p_pgrp,
514 ("%s: p belongs to pgrp.", __func__));
516 doenterpgrp(p, pgrp);
522 * Move p to a process group
529 struct pgrp *savepgrp;
531 sx_assert(&proctree_lock, SX_XLOCKED);
532 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
533 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
534 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
535 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
537 savepgrp = p->p_pgrp;
540 * Adjust eligibility of affected pgrps to participate in job control.
541 * Increment eligibility counts before decrementing, otherwise we
542 * could reach 0 spuriously during the first call.
545 fixjobc(p, p->p_pgrp, 0);
550 LIST_REMOVE(p, p_pglist);
553 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
554 PGRP_UNLOCK(savepgrp);
556 if (LIST_EMPTY(&savepgrp->pg_members))
561 * remove process from process group
565 register struct proc *p;
567 struct pgrp *savepgrp;
569 sx_assert(&proctree_lock, SX_XLOCKED);
570 savepgrp = p->p_pgrp;
573 LIST_REMOVE(p, p_pglist);
576 PGRP_UNLOCK(savepgrp);
577 if (LIST_EMPTY(&savepgrp->pg_members))
583 * delete a process group
587 register struct pgrp *pgrp;
589 struct session *savesess;
592 sx_assert(&proctree_lock, SX_XLOCKED);
593 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
594 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
597 * Reset any sigio structures pointing to us as a result of
598 * F_SETOWN with our pgid.
600 funsetownlst(&pgrp->pg_sigiolst);
603 tp = pgrp->pg_session->s_ttyp;
604 LIST_REMOVE(pgrp, pg_hash);
605 savesess = pgrp->pg_session;
608 /* Remove the reference to the pgrp before deallocating it. */
611 tty_rel_pgrp(tp, pgrp);
614 mtx_destroy(&pgrp->pg_mtx);
616 sess_release(savesess);
620 pgadjustjobc(pgrp, entering)
630 if (pgrp->pg_jobc == 0)
637 * Adjust pgrp jobc counters when specified process changes process group.
638 * We count the number of processes in each process group that "qualify"
639 * the group for terminal job control (those with a parent in a different
640 * process group of the same session). If that count reaches zero, the
641 * process group becomes orphaned. Check both the specified process'
642 * process group and that of its children.
643 * entering == 0 => p is leaving specified group.
644 * entering == 1 => p is entering specified group.
647 fixjobc(p, pgrp, entering)
648 register struct proc *p;
649 register struct pgrp *pgrp;
652 register struct pgrp *hispgrp;
653 register struct session *mysession;
655 sx_assert(&proctree_lock, SX_LOCKED);
656 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
657 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
658 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
661 * Check p's parent to see whether p qualifies its own process
662 * group; if so, adjust count for p's process group.
664 mysession = pgrp->pg_session;
665 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
666 hispgrp->pg_session == mysession)
667 pgadjustjobc(pgrp, entering);
670 * Check this process' children to see whether they qualify
671 * their process groups; if so, adjust counts for children's
674 LIST_FOREACH(p, &p->p_children, p_sibling) {
676 if (hispgrp == pgrp ||
677 hispgrp->pg_session != mysession)
680 if (p->p_state == PRS_ZOMBIE) {
685 pgadjustjobc(hispgrp, entering);
690 * A process group has become orphaned;
691 * if there are any stopped processes in the group,
692 * hang-up all process in that group.
698 register struct proc *p;
700 PGRP_LOCK_ASSERT(pg, MA_OWNED);
702 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
704 if (P_SHOULDSTOP(p)) {
706 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
708 kern_psignal(p, SIGHUP);
709 kern_psignal(p, SIGCONT);
719 sess_hold(struct session *s)
722 refcount_acquire(&s->s_count);
726 sess_release(struct session *s)
729 if (refcount_release(&s->s_count)) {
730 if (s->s_ttyp != NULL) {
732 tty_rel_sess(s->s_ttyp, s);
734 mtx_destroy(&s->s_mtx);
743 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
745 register struct pgrp *pgrp;
746 register struct proc *p;
749 for (i = 0; i <= pgrphash; i++) {
750 if (!LIST_EMPTY(&pgrphashtbl[i])) {
751 printf("\tindx %d\n", i);
752 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
754 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
755 (void *)pgrp, (long)pgrp->pg_id,
756 (void *)pgrp->pg_session,
757 pgrp->pg_session->s_count,
758 (void *)LIST_FIRST(&pgrp->pg_members));
759 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
760 printf("\t\tpid %ld addr %p pgrp %p\n",
761 (long)p->p_pid, (void *)p,
771 * Calculate the kinfo_proc members which contain process-wide
773 * Must be called with the target process locked.
776 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
780 PROC_LOCK_ASSERT(p, MA_OWNED);
784 FOREACH_THREAD_IN_PROC(p, td) {
786 kp->ki_pctcpu += sched_pctcpu(td);
787 kp->ki_estcpu += td->td_estcpu;
793 * Clear kinfo_proc and fill in any information that is common
794 * to all threads in the process.
795 * Must be called with the target process locked.
798 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
806 PROC_LOCK_ASSERT(p, MA_OWNED);
807 bzero(kp, sizeof(*kp));
809 kp->ki_structsize = sizeof(*kp);
811 kp->ki_addr =/* p->p_addr; */0; /* XXX */
812 kp->ki_args = p->p_args;
813 kp->ki_textvp = p->p_textvp;
815 kp->ki_tracep = p->p_tracevp;
816 kp->ki_traceflag = p->p_traceflag;
819 kp->ki_vmspace = p->p_vmspace;
820 kp->ki_flag = p->p_flag;
823 kp->ki_uid = cred->cr_uid;
824 kp->ki_ruid = cred->cr_ruid;
825 kp->ki_svuid = cred->cr_svuid;
827 if (cred->cr_flags & CRED_FLAG_CAPMODE)
828 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
829 /* XXX bde doesn't like KI_NGROUPS */
830 if (cred->cr_ngroups > KI_NGROUPS) {
831 kp->ki_ngroups = KI_NGROUPS;
832 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
834 kp->ki_ngroups = cred->cr_ngroups;
835 bcopy(cred->cr_groups, kp->ki_groups,
836 kp->ki_ngroups * sizeof(gid_t));
837 kp->ki_rgid = cred->cr_rgid;
838 kp->ki_svgid = cred->cr_svgid;
839 /* If jailed(cred), emulate the old P_JAILED flag. */
841 kp->ki_flag |= P_JAILED;
842 /* If inside the jail, use 0 as a jail ID. */
843 if (cred->cr_prison != curthread->td_ucred->cr_prison)
844 kp->ki_jid = cred->cr_prison->pr_id;
846 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
847 sizeof(kp->ki_loginclass));
851 mtx_lock(&ps->ps_mtx);
852 kp->ki_sigignore = ps->ps_sigignore;
853 kp->ki_sigcatch = ps->ps_sigcatch;
854 mtx_unlock(&ps->ps_mtx);
856 if (p->p_state != PRS_NEW &&
857 p->p_state != PRS_ZOMBIE &&
858 p->p_vmspace != NULL) {
859 struct vmspace *vm = p->p_vmspace;
861 kp->ki_size = vm->vm_map.size;
862 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
863 FOREACH_THREAD_IN_PROC(p, td0) {
864 if (!TD_IS_SWAPPED(td0))
865 kp->ki_rssize += td0->td_kstack_pages;
867 kp->ki_swrss = vm->vm_swrss;
868 kp->ki_tsize = vm->vm_tsize;
869 kp->ki_dsize = vm->vm_dsize;
870 kp->ki_ssize = vm->vm_ssize;
871 } else if (p->p_state == PRS_ZOMBIE)
873 if (kp->ki_flag & P_INMEM)
874 kp->ki_sflag = PS_INMEM;
877 /* Calculate legacy swtime as seconds since 'swtick'. */
878 kp->ki_swtime = (ticks - p->p_swtick) / hz;
879 kp->ki_pid = p->p_pid;
880 kp->ki_nice = p->p_nice;
881 kp->ki_start = p->p_stats->p_start;
882 timevaladd(&kp->ki_start, &boottime);
884 rufetch(p, &kp->ki_rusage);
885 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
886 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
888 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
889 /* Some callers want child times in a single value. */
890 kp->ki_childtime = kp->ki_childstime;
891 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
893 FOREACH_THREAD_IN_PROC(p, td0)
894 kp->ki_cow += td0->td_cow;
898 kp->ki_pgid = p->p_pgrp->pg_id;
899 kp->ki_jobc = p->p_pgrp->pg_jobc;
900 sp = p->p_pgrp->pg_session;
903 kp->ki_sid = sp->s_sid;
905 strlcpy(kp->ki_login, sp->s_login,
906 sizeof(kp->ki_login));
908 kp->ki_kiflag |= KI_CTTY;
910 kp->ki_kiflag |= KI_SLEADER;
911 /* XXX proctree_lock */
916 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
917 kp->ki_tdev = tty_udev(tp);
918 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
920 kp->ki_tsid = tp->t_session->s_sid;
923 if (p->p_comm[0] != '\0')
924 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
925 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
926 p->p_sysent->sv_name[0] != '\0')
927 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
928 kp->ki_siglist = p->p_siglist;
929 kp->ki_xstat = p->p_xstat;
930 kp->ki_acflag = p->p_acflag;
931 kp->ki_lock = p->p_lock;
933 kp->ki_ppid = p->p_pptr->p_pid;
937 * Fill in information that is thread specific. Must be called with
938 * target process locked. If 'preferthread' is set, overwrite certain
939 * process-related fields that are maintained for both threads and
943 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
949 PROC_LOCK_ASSERT(p, MA_OWNED);
954 if (td->td_wmesg != NULL)
955 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
957 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
958 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
959 if (TD_ON_LOCK(td)) {
960 kp->ki_kiflag |= KI_LOCKBLOCK;
961 strlcpy(kp->ki_lockname, td->td_lockname,
962 sizeof(kp->ki_lockname));
964 kp->ki_kiflag &= ~KI_LOCKBLOCK;
965 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
968 if (p->p_state == PRS_NORMAL) { /* approximate. */
969 if (TD_ON_RUNQ(td) ||
973 } else if (P_SHOULDSTOP(p)) {
975 } else if (TD_IS_SLEEPING(td)) {
976 kp->ki_stat = SSLEEP;
977 } else if (TD_ON_LOCK(td)) {
982 } else if (p->p_state == PRS_ZOMBIE) {
988 /* Things in the thread */
989 kp->ki_wchan = td->td_wchan;
990 kp->ki_pri.pri_level = td->td_priority;
991 kp->ki_pri.pri_native = td->td_base_pri;
992 kp->ki_lastcpu = td->td_lastcpu;
993 kp->ki_oncpu = td->td_oncpu;
994 kp->ki_tdflags = td->td_flags;
995 kp->ki_tid = td->td_tid;
996 kp->ki_numthreads = p->p_numthreads;
997 kp->ki_pcb = td->td_pcb;
998 kp->ki_kstack = (void *)td->td_kstack;
999 kp->ki_slptime = (ticks - td->td_slptick) / hz;
1000 kp->ki_pri.pri_class = td->td_pri_class;
1001 kp->ki_pri.pri_user = td->td_user_pri;
1004 rufetchtd(td, &kp->ki_rusage);
1005 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
1006 kp->ki_pctcpu = sched_pctcpu(td);
1007 kp->ki_estcpu = td->td_estcpu;
1008 kp->ki_cow = td->td_cow;
1011 /* We can't get this anymore but ps etc never used it anyway. */
1015 kp->ki_siglist = td->td_siglist;
1016 kp->ki_sigmask = td->td_sigmask;
1023 * Fill in a kinfo_proc structure for the specified process.
1024 * Must be called with the target process locked.
1027 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1030 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1032 fill_kinfo_proc_only(p, kp);
1033 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1034 fill_kinfo_aggregate(p, kp);
1041 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1045 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1048 pstats_fork(struct pstats *src, struct pstats *dst)
1051 bzero(&dst->pstat_startzero,
1052 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1053 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1054 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1058 pstats_free(struct pstats *ps)
1061 free(ps, M_SUBPROC);
1064 static struct proc *
1065 zpfind_locked(pid_t pid)
1069 sx_assert(&allproc_lock, SX_LOCKED);
1070 LIST_FOREACH(p, &zombproc, p_list) {
1071 if (p->p_pid == pid) {
1080 * Locate a zombie process by number
1087 sx_slock(&allproc_lock);
1088 p = zpfind_locked(pid);
1089 sx_sunlock(&allproc_lock);
1093 #ifdef COMPAT_FREEBSD32
1096 * This function is typically used to copy out the kernel address, so
1097 * it can be replaced by assignment of zero.
1099 static inline uint32_t
1100 ptr32_trim(void *ptr)
1104 uptr = (uintptr_t)ptr;
1105 return ((uptr > UINT_MAX) ? 0 : uptr);
1108 #define PTRTRIM_CP(src,dst,fld) \
1109 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1112 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1116 bzero(ki32, sizeof(struct kinfo_proc32));
1117 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1118 CP(*ki, *ki32, ki_layout);
1119 PTRTRIM_CP(*ki, *ki32, ki_args);
1120 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1121 PTRTRIM_CP(*ki, *ki32, ki_addr);
1122 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1123 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1124 PTRTRIM_CP(*ki, *ki32, ki_fd);
1125 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1126 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1127 CP(*ki, *ki32, ki_pid);
1128 CP(*ki, *ki32, ki_ppid);
1129 CP(*ki, *ki32, ki_pgid);
1130 CP(*ki, *ki32, ki_tpgid);
1131 CP(*ki, *ki32, ki_sid);
1132 CP(*ki, *ki32, ki_tsid);
1133 CP(*ki, *ki32, ki_jobc);
1134 CP(*ki, *ki32, ki_tdev);
1135 CP(*ki, *ki32, ki_siglist);
1136 CP(*ki, *ki32, ki_sigmask);
1137 CP(*ki, *ki32, ki_sigignore);
1138 CP(*ki, *ki32, ki_sigcatch);
1139 CP(*ki, *ki32, ki_uid);
1140 CP(*ki, *ki32, ki_ruid);
1141 CP(*ki, *ki32, ki_svuid);
1142 CP(*ki, *ki32, ki_rgid);
1143 CP(*ki, *ki32, ki_svgid);
1144 CP(*ki, *ki32, ki_ngroups);
1145 for (i = 0; i < KI_NGROUPS; i++)
1146 CP(*ki, *ki32, ki_groups[i]);
1147 CP(*ki, *ki32, ki_size);
1148 CP(*ki, *ki32, ki_rssize);
1149 CP(*ki, *ki32, ki_swrss);
1150 CP(*ki, *ki32, ki_tsize);
1151 CP(*ki, *ki32, ki_dsize);
1152 CP(*ki, *ki32, ki_ssize);
1153 CP(*ki, *ki32, ki_xstat);
1154 CP(*ki, *ki32, ki_acflag);
1155 CP(*ki, *ki32, ki_pctcpu);
1156 CP(*ki, *ki32, ki_estcpu);
1157 CP(*ki, *ki32, ki_slptime);
1158 CP(*ki, *ki32, ki_swtime);
1159 CP(*ki, *ki32, ki_cow);
1160 CP(*ki, *ki32, ki_runtime);
1161 TV_CP(*ki, *ki32, ki_start);
1162 TV_CP(*ki, *ki32, ki_childtime);
1163 CP(*ki, *ki32, ki_flag);
1164 CP(*ki, *ki32, ki_kiflag);
1165 CP(*ki, *ki32, ki_traceflag);
1166 CP(*ki, *ki32, ki_stat);
1167 CP(*ki, *ki32, ki_nice);
1168 CP(*ki, *ki32, ki_lock);
1169 CP(*ki, *ki32, ki_rqindex);
1170 CP(*ki, *ki32, ki_oncpu);
1171 CP(*ki, *ki32, ki_lastcpu);
1172 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1173 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1174 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1175 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1176 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1177 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1178 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1179 CP(*ki, *ki32, ki_cr_flags);
1180 CP(*ki, *ki32, ki_jid);
1181 CP(*ki, *ki32, ki_numthreads);
1182 CP(*ki, *ki32, ki_tid);
1183 CP(*ki, *ki32, ki_pri);
1184 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1185 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1186 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1187 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1188 PTRTRIM_CP(*ki, *ki32, ki_udata);
1189 CP(*ki, *ki32, ki_sflag);
1190 CP(*ki, *ki32, ki_tdflags);
1195 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1198 struct kinfo_proc ki;
1199 #ifdef COMPAT_FREEBSD32
1200 struct kinfo_proc32 ki32;
1204 PROC_LOCK_ASSERT(p, MA_OWNED);
1205 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1208 fill_kinfo_proc(p, &ki);
1209 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1210 #ifdef COMPAT_FREEBSD32
1211 if ((flags & KERN_PROC_MASK32) != 0) {
1212 freebsd32_kinfo_proc_out(&ki, &ki32);
1213 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1216 error = sbuf_bcat(sb, &ki, sizeof(ki));
1218 FOREACH_THREAD_IN_PROC(p, td) {
1219 fill_kinfo_thread(td, &ki, 1);
1220 #ifdef COMPAT_FREEBSD32
1221 if ((flags & KERN_PROC_MASK32) != 0) {
1222 freebsd32_kinfo_proc_out(&ki, &ki32);
1223 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1226 error = sbuf_bcat(sb, &ki, sizeof(ki));
1236 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1240 struct kinfo_proc ki;
1246 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1247 error = kern_proc_out(p, &sb, flags);
1248 error2 = sbuf_finish(&sb);
1252 else if (error2 != 0)
1272 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1274 int *name = (int *)arg1;
1275 u_int namelen = arg2;
1277 int flags, doingzomb, oid_number;
1280 oid_number = oidp->oid_number;
1281 if (oid_number != KERN_PROC_ALL &&
1282 (oid_number & KERN_PROC_INC_THREAD) == 0)
1283 flags = KERN_PROC_NOTHREADS;
1286 oid_number &= ~KERN_PROC_INC_THREAD;
1288 #ifdef COMPAT_FREEBSD32
1289 if (req->flags & SCTL_MASK32)
1290 flags |= KERN_PROC_MASK32;
1292 if (oid_number == KERN_PROC_PID) {
1295 error = sysctl_wire_old_buffer(req, 0);
1298 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1301 error = sysctl_out_proc(p, req, flags, 0);
1305 switch (oid_number) {
1310 case KERN_PROC_PROC:
1311 if (namelen != 0 && namelen != 1)
1321 /* overestimate by 5 procs */
1322 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1326 error = sysctl_wire_old_buffer(req, 0);
1329 sx_slock(&allproc_lock);
1330 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1332 p = LIST_FIRST(&allproc);
1334 p = LIST_FIRST(&zombproc);
1335 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1337 * Skip embryonic processes.
1340 if (p->p_state == PRS_NEW) {
1344 KASSERT(p->p_ucred != NULL,
1345 ("process credential is NULL for non-NEW proc"));
1347 * Show a user only appropriate processes.
1349 if (p_cansee(curthread, p)) {
1354 * TODO - make more efficient (see notes below).
1357 switch (oid_number) {
1360 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1366 case KERN_PROC_PGRP:
1367 /* could do this by traversing pgrp */
1368 if (p->p_pgrp == NULL ||
1369 p->p_pgrp->pg_id != (pid_t)name[0]) {
1375 case KERN_PROC_RGID:
1376 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1382 case KERN_PROC_SESSION:
1383 if (p->p_session == NULL ||
1384 p->p_session->s_sid != (pid_t)name[0]) {
1391 if ((p->p_flag & P_CONTROLT) == 0 ||
1392 p->p_session == NULL) {
1396 /* XXX proctree_lock */
1397 SESS_LOCK(p->p_session);
1398 if (p->p_session->s_ttyp == NULL ||
1399 tty_udev(p->p_session->s_ttyp) !=
1401 SESS_UNLOCK(p->p_session);
1405 SESS_UNLOCK(p->p_session);
1409 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1415 case KERN_PROC_RUID:
1416 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1422 case KERN_PROC_PROC:
1430 error = sysctl_out_proc(p, req, flags, doingzomb);
1432 sx_sunlock(&allproc_lock);
1437 sx_sunlock(&allproc_lock);
1442 pargs_alloc(int len)
1446 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1448 refcount_init(&pa->ar_ref, 1);
1449 pa->ar_length = len;
1454 pargs_free(struct pargs *pa)
1461 pargs_hold(struct pargs *pa)
1466 refcount_acquire(&pa->ar_ref);
1470 pargs_drop(struct pargs *pa)
1475 if (refcount_release(&pa->ar_ref))
1480 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1486 iov.iov_base = (caddr_t)buf;
1490 uio.uio_offset = offset;
1491 uio.uio_resid = (ssize_t)len;
1492 uio.uio_segflg = UIO_SYSSPACE;
1493 uio.uio_rw = UIO_READ;
1496 return (proc_rwmem(p, &uio));
1500 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1506 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1508 * Reading the chunk may validly return EFAULT if the string is shorter
1509 * than the chunk and is aligned at the end of the page, assuming the
1510 * next page is not mapped. So if EFAULT is returned do a fallback to
1511 * one byte read loop.
1513 if (error == EFAULT) {
1514 for (i = 0; i < len; i++, buf++, sptr++) {
1515 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1526 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1528 enum proc_vector_type {
1534 #ifdef COMPAT_FREEBSD32
1536 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1537 size_t *vsizep, enum proc_vector_type type)
1539 struct freebsd32_ps_strings pss;
1541 vm_offset_t vptr, ptr;
1542 uint32_t *proc_vector32;
1547 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1553 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1554 vsize = pss.ps_nargvstr;
1555 if (vsize > ARG_MAX)
1557 size = vsize * sizeof(int32_t);
1560 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1561 vsize = pss.ps_nenvstr;
1562 if (vsize > ARG_MAX)
1564 size = vsize * sizeof(int32_t);
1567 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1568 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1571 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1572 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1575 if (aux.a_type == AT_NULL)
1579 if (aux.a_type != AT_NULL)
1582 size = vsize * sizeof(aux);
1585 KASSERT(0, ("Wrong proc vector type: %d", type));
1588 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1589 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1592 if (type == PROC_AUX) {
1593 *proc_vectorp = (char **)proc_vector32;
1597 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1598 for (i = 0; i < (int)vsize; i++)
1599 proc_vector[i] = PTRIN(proc_vector32[i]);
1600 *proc_vectorp = proc_vector;
1603 free(proc_vector32, M_TEMP);
1609 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1610 size_t *vsizep, enum proc_vector_type type)
1612 struct ps_strings pss;
1614 vm_offset_t vptr, ptr;
1619 #ifdef COMPAT_FREEBSD32
1620 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1621 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1623 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1629 vptr = (vm_offset_t)pss.ps_argvstr;
1630 vsize = pss.ps_nargvstr;
1631 if (vsize > ARG_MAX)
1633 size = vsize * sizeof(char *);
1636 vptr = (vm_offset_t)pss.ps_envstr;
1637 vsize = pss.ps_nenvstr;
1638 if (vsize > ARG_MAX)
1640 size = vsize * sizeof(char *);
1644 * The aux array is just above env array on the stack. Check
1645 * that the address is naturally aligned.
1647 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1649 #if __ELF_WORD_SIZE == 64
1650 if (vptr % sizeof(uint64_t) != 0)
1652 if (vptr % sizeof(uint32_t) != 0)
1656 * We count the array size reading the aux vectors from the
1657 * stack until AT_NULL vector is returned. So (to keep the code
1658 * simple) we read the process stack twice: the first time here
1659 * to find the size and the second time when copying the vectors
1660 * to the allocated proc_vector.
1662 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1663 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1666 if (aux.a_type == AT_NULL)
1671 * If the PROC_AUXV_MAX entries are iterated over, and we have
1672 * not reached AT_NULL, it is most likely we are reading wrong
1673 * data: either the process doesn't have auxv array or data has
1674 * been modified. Return the error in this case.
1676 if (aux.a_type != AT_NULL)
1679 size = vsize * sizeof(aux);
1682 KASSERT(0, ("Wrong proc vector type: %d", type));
1683 return (EINVAL); /* In case we are built without INVARIANTS. */
1685 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1686 if (proc_vector == NULL)
1688 error = proc_read_mem(td, p, vptr, proc_vector, size);
1690 free(proc_vector, M_TEMP);
1693 *proc_vectorp = proc_vector;
1699 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1702 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1703 enum proc_vector_type type)
1705 size_t done, len, nchr, vsize;
1707 char **proc_vector, *sptr;
1708 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1710 PROC_ASSERT_HELD(p);
1713 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1715 nchr = 2 * (PATH_MAX + ARG_MAX);
1717 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1720 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1722 * The program may have scribbled into its argv array, e.g. to
1723 * remove some arguments. If that has happened, break out
1724 * before trying to read from NULL.
1726 if (proc_vector[i] == NULL)
1728 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1729 error = proc_read_string(td, p, sptr, pss_string,
1730 sizeof(pss_string));
1733 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1734 if (done + len >= nchr)
1735 len = nchr - done - 1;
1736 sbuf_bcat(sb, pss_string, len);
1737 if (len != GET_PS_STRINGS_CHUNK_SZ)
1739 done += GET_PS_STRINGS_CHUNK_SZ;
1741 sbuf_bcat(sb, "", 1);
1745 free(proc_vector, M_TEMP);
1750 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1753 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1757 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1760 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1764 * This sysctl allows a process to retrieve the argument list or process
1765 * title for another process without groping around in the address space
1766 * of the other process. It also allow a process to set its own "process
1767 * title to a string of its own choice.
1770 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1772 int *name = (int *)arg1;
1773 u_int namelen = arg2;
1774 struct pargs *newpa, *pa;
1777 int flags, error = 0, error2;
1782 flags = PGET_CANSEE;
1783 if (req->newptr != NULL)
1784 flags |= PGET_ISCURRENT;
1785 error = pget((pid_t)name[0], flags, &p);
1793 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1795 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1798 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1799 error = proc_getargv(curthread, p, &sb);
1800 error2 = sbuf_finish(&sb);
1803 if (error == 0 && error2 != 0)
1808 if (error != 0 || req->newptr == NULL)
1811 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1813 newpa = pargs_alloc(req->newlen);
1814 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1828 * This sysctl allows a process to retrieve environment of another process.
1831 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1833 int *name = (int *)arg1;
1834 u_int namelen = arg2;
1842 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1845 if ((p->p_flag & P_SYSTEM) != 0) {
1850 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1851 error = proc_getenvv(curthread, p, &sb);
1852 error2 = sbuf_finish(&sb);
1855 return (error != 0 ? error : error2);
1859 * This sysctl allows a process to retrieve ELF auxiliary vector of
1863 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1865 int *name = (int *)arg1;
1866 u_int namelen = arg2;
1875 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1878 if ((p->p_flag & P_SYSTEM) != 0) {
1882 error = get_proc_vector(curthread, p, &auxv, &vsize, PROC_AUX);
1884 #ifdef COMPAT_FREEBSD32
1885 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1886 size = vsize * sizeof(Elf32_Auxinfo);
1889 size = vsize * sizeof(Elf_Auxinfo);
1891 error = SYSCTL_OUT(req, auxv, size);
1900 * This sysctl allows a process to retrieve the path of the executable for
1901 * itself or another process.
1904 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1906 pid_t *pidp = (pid_t *)arg1;
1907 unsigned int arglen = arg2;
1910 char *retbuf, *freebuf;
1911 int error, vfslocked;
1915 if (*pidp == -1) { /* -1 means this process */
1916 p = req->td->td_proc;
1918 error = pget(*pidp, PGET_CANSEE, &p);
1932 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1933 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
1935 VFS_UNLOCK_GIANT(vfslocked);
1938 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1939 free(freebuf, M_TEMP);
1944 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1957 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1960 sv_name = p->p_sysent->sv_name;
1962 return (sysctl_handle_string(oidp, sv_name, 0, req));
1965 #ifdef KINFO_OVMENTRY_SIZE
1966 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1969 #ifdef COMPAT_FREEBSD7
1971 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1973 vm_map_entry_t entry, tmp_entry;
1974 unsigned int last_timestamp;
1975 char *fullpath, *freepath;
1976 struct kinfo_ovmentry *kve;
1986 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1989 vm = vmspace_acquire_ref(p);
1994 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
1996 map = &p->p_vmspace->vm_map; /* XXXRW: More locking required? */
1997 vm_map_lock_read(map);
1998 for (entry = map->header.next; entry != &map->header;
1999 entry = entry->next) {
2000 vm_object_t obj, tobj, lobj;
2004 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2007 bzero(kve, sizeof(*kve));
2008 kve->kve_structsize = sizeof(*kve);
2010 kve->kve_private_resident = 0;
2011 obj = entry->object.vm_object;
2013 VM_OBJECT_LOCK(obj);
2014 if (obj->shadow_count == 1)
2015 kve->kve_private_resident =
2016 obj->resident_page_count;
2018 kve->kve_resident = 0;
2019 addr = entry->start;
2020 while (addr < entry->end) {
2021 if (pmap_extract(map->pmap, addr))
2022 kve->kve_resident++;
2026 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2028 VM_OBJECT_LOCK(tobj);
2030 VM_OBJECT_UNLOCK(lobj);
2034 kve->kve_start = (void*)entry->start;
2035 kve->kve_end = (void*)entry->end;
2036 kve->kve_offset = (off_t)entry->offset;
2038 if (entry->protection & VM_PROT_READ)
2039 kve->kve_protection |= KVME_PROT_READ;
2040 if (entry->protection & VM_PROT_WRITE)
2041 kve->kve_protection |= KVME_PROT_WRITE;
2042 if (entry->protection & VM_PROT_EXECUTE)
2043 kve->kve_protection |= KVME_PROT_EXEC;
2045 if (entry->eflags & MAP_ENTRY_COW)
2046 kve->kve_flags |= KVME_FLAG_COW;
2047 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2048 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2049 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2050 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2052 last_timestamp = map->timestamp;
2053 vm_map_unlock_read(map);
2055 kve->kve_fileid = 0;
2061 switch (lobj->type) {
2063 kve->kve_type = KVME_TYPE_DEFAULT;
2066 kve->kve_type = KVME_TYPE_VNODE;
2071 kve->kve_type = KVME_TYPE_SWAP;
2074 kve->kve_type = KVME_TYPE_DEVICE;
2077 kve->kve_type = KVME_TYPE_PHYS;
2080 kve->kve_type = KVME_TYPE_DEAD;
2083 kve->kve_type = KVME_TYPE_SG;
2086 kve->kve_type = KVME_TYPE_UNKNOWN;
2090 VM_OBJECT_UNLOCK(lobj);
2092 kve->kve_ref_count = obj->ref_count;
2093 kve->kve_shadow_count = obj->shadow_count;
2094 VM_OBJECT_UNLOCK(obj);
2096 vn_fullpath(curthread, vp, &fullpath,
2098 cred = curthread->td_ucred;
2099 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2100 vn_lock(vp, LK_SHARED | LK_RETRY);
2101 if (VOP_GETATTR(vp, &va, cred) == 0) {
2102 kve->kve_fileid = va.va_fileid;
2103 kve->kve_fsid = va.va_fsid;
2106 VFS_UNLOCK_GIANT(vfslocked);
2109 kve->kve_type = KVME_TYPE_NONE;
2110 kve->kve_ref_count = 0;
2111 kve->kve_shadow_count = 0;
2114 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2115 if (freepath != NULL)
2116 free(freepath, M_TEMP);
2118 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2119 vm_map_lock_read(map);
2122 if (last_timestamp != map->timestamp) {
2123 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2127 vm_map_unlock_read(map);
2133 #endif /* COMPAT_FREEBSD7 */
2135 #ifdef KINFO_VMENTRY_SIZE
2136 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2140 * Must be called with the process locked and will return unlocked.
2143 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2145 vm_map_entry_t entry, tmp_entry;
2146 unsigned int last_timestamp;
2147 char *fullpath, *freepath;
2148 struct kinfo_vmentry *kve;
2156 PROC_LOCK_ASSERT(p, MA_OWNED);
2160 vm = vmspace_acquire_ref(p);
2165 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2168 map = &vm->vm_map; /* XXXRW: More locking required? */
2169 vm_map_lock_read(map);
2170 for (entry = map->header.next; entry != &map->header;
2171 entry = entry->next) {
2172 vm_object_t obj, tobj, lobj;
2174 vm_paddr_t locked_pa;
2175 int vfslocked, mincoreinfo;
2177 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2180 bzero(kve, sizeof(*kve));
2182 kve->kve_private_resident = 0;
2183 obj = entry->object.vm_object;
2185 VM_OBJECT_LOCK(obj);
2186 if (obj->shadow_count == 1)
2187 kve->kve_private_resident =
2188 obj->resident_page_count;
2190 kve->kve_resident = 0;
2191 addr = entry->start;
2192 while (addr < entry->end) {
2194 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2196 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2197 if (mincoreinfo & MINCORE_INCORE)
2198 kve->kve_resident++;
2199 if (mincoreinfo & MINCORE_SUPER)
2200 kve->kve_flags |= KVME_FLAG_SUPER;
2204 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2206 VM_OBJECT_LOCK(tobj);
2208 VM_OBJECT_UNLOCK(lobj);
2212 kve->kve_start = entry->start;
2213 kve->kve_end = entry->end;
2214 kve->kve_offset = entry->offset;
2216 if (entry->protection & VM_PROT_READ)
2217 kve->kve_protection |= KVME_PROT_READ;
2218 if (entry->protection & VM_PROT_WRITE)
2219 kve->kve_protection |= KVME_PROT_WRITE;
2220 if (entry->protection & VM_PROT_EXECUTE)
2221 kve->kve_protection |= KVME_PROT_EXEC;
2223 if (entry->eflags & MAP_ENTRY_COW)
2224 kve->kve_flags |= KVME_FLAG_COW;
2225 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2226 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2227 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2228 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2229 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2230 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2231 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2232 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2234 last_timestamp = map->timestamp;
2235 vm_map_unlock_read(map);
2241 switch (lobj->type) {
2243 kve->kve_type = KVME_TYPE_DEFAULT;
2246 kve->kve_type = KVME_TYPE_VNODE;
2251 kve->kve_type = KVME_TYPE_SWAP;
2254 kve->kve_type = KVME_TYPE_DEVICE;
2257 kve->kve_type = KVME_TYPE_PHYS;
2260 kve->kve_type = KVME_TYPE_DEAD;
2263 kve->kve_type = KVME_TYPE_SG;
2266 kve->kve_type = KVME_TYPE_UNKNOWN;
2270 VM_OBJECT_UNLOCK(lobj);
2272 kve->kve_ref_count = obj->ref_count;
2273 kve->kve_shadow_count = obj->shadow_count;
2274 VM_OBJECT_UNLOCK(obj);
2276 vn_fullpath(curthread, vp, &fullpath,
2278 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2279 cred = curthread->td_ucred;
2280 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
2281 vn_lock(vp, LK_SHARED | LK_RETRY);
2282 if (VOP_GETATTR(vp, &va, cred) == 0) {
2283 kve->kve_vn_fileid = va.va_fileid;
2284 kve->kve_vn_fsid = va.va_fsid;
2286 MAKEIMODE(va.va_type, va.va_mode);
2287 kve->kve_vn_size = va.va_size;
2288 kve->kve_vn_rdev = va.va_rdev;
2289 kve->kve_status = KF_ATTR_VALID;
2292 VFS_UNLOCK_GIANT(vfslocked);
2295 kve->kve_type = KVME_TYPE_NONE;
2296 kve->kve_ref_count = 0;
2297 kve->kve_shadow_count = 0;
2300 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2301 if (freepath != NULL)
2302 free(freepath, M_TEMP);
2304 /* Pack record size down */
2305 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2306 strlen(kve->kve_path) + 1;
2307 kve->kve_structsize = roundup(kve->kve_structsize,
2309 error = sbuf_bcat(sb, kve, kve->kve_structsize);
2310 vm_map_lock_read(map);
2313 if (last_timestamp != map->timestamp) {
2314 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2318 vm_map_unlock_read(map);
2326 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2330 int error, error2, *name;
2333 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2334 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2339 error = kern_proc_vmmap_out(p, &sb);
2340 error2 = sbuf_finish(&sb);
2342 return (error != 0 ? error : error2);
2345 #if defined(STACK) || defined(DDB)
2347 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2349 struct kinfo_kstack *kkstp;
2350 int error, i, *name, numthreads;
2351 lwpid_t *lwpidarray;
2358 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2362 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2363 st = stack_create();
2369 if (numthreads < p->p_numthreads) {
2370 if (lwpidarray != NULL) {
2371 free(lwpidarray, M_TEMP);
2374 numthreads = p->p_numthreads;
2376 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2384 * XXXRW: During the below loop, execve(2) and countless other sorts
2385 * of changes could have taken place. Should we check to see if the
2386 * vmspace has been replaced, or the like, in order to prevent
2387 * giving a snapshot that spans, say, execve(2), with some threads
2388 * before and some after? Among other things, the credentials could
2389 * have changed, in which case the right to extract debug info might
2390 * no longer be assured.
2392 FOREACH_THREAD_IN_PROC(p, td) {
2393 KASSERT(i < numthreads,
2394 ("sysctl_kern_proc_kstack: numthreads"));
2395 lwpidarray[i] = td->td_tid;
2399 for (i = 0; i < numthreads; i++) {
2400 td = thread_find(p, lwpidarray[i]);
2404 bzero(kkstp, sizeof(*kkstp));
2405 (void)sbuf_new(&sb, kkstp->kkst_trace,
2406 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2408 kkstp->kkst_tid = td->td_tid;
2409 if (TD_IS_SWAPPED(td))
2410 kkstp->kkst_state = KKST_STATE_SWAPPED;
2411 else if (TD_IS_RUNNING(td))
2412 kkstp->kkst_state = KKST_STATE_RUNNING;
2414 kkstp->kkst_state = KKST_STATE_STACKOK;
2415 stack_save_td(st, td);
2419 stack_sbuf_print(&sb, st);
2422 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2429 if (lwpidarray != NULL)
2430 free(lwpidarray, M_TEMP);
2432 free(kkstp, M_TEMP);
2438 * This sysctl allows a process to retrieve the full list of groups from
2439 * itself or another process.
2442 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2444 pid_t *pidp = (pid_t *)arg1;
2445 unsigned int arglen = arg2;
2452 if (*pidp == -1) { /* -1 means this process */
2453 p = req->td->td_proc;
2455 error = pget(*pidp, PGET_CANSEE, &p);
2460 cred = crhold(p->p_ucred);
2464 error = SYSCTL_OUT(req, cred->cr_groups,
2465 cred->cr_ngroups * sizeof(gid_t));
2471 * This sysctl allows a process to retrieve or/and set the resource limit for
2475 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2477 int *name = (int *)arg1;
2478 u_int namelen = arg2;
2487 which = (u_int)name[1];
2488 if (which >= RLIM_NLIMITS)
2491 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2494 flags = PGET_HOLD | PGET_NOTWEXIT;
2495 if (req->newptr != NULL)
2496 flags |= PGET_CANDEBUG;
2498 flags |= PGET_CANSEE;
2499 error = pget((pid_t)name[0], flags, &p);
2506 if (req->oldptr != NULL) {
2508 lim_rlimit(p, which, &rlim);
2511 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2518 if (req->newptr != NULL) {
2519 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2521 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2530 * This sysctl allows a process to retrieve ps_strings structure location of
2534 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2536 int *name = (int *)arg1;
2537 u_int namelen = arg2;
2539 vm_offset_t ps_strings;
2541 #ifdef COMPAT_FREEBSD32
2542 uint32_t ps_strings32;
2548 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2551 #ifdef COMPAT_FREEBSD32
2552 if ((req->flags & SCTL_MASK32) != 0) {
2554 * We return 0 if the 32 bit emulation request is for a 64 bit
2557 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2558 PTROUT(p->p_sysent->sv_psstrings) : 0;
2560 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2564 ps_strings = p->p_sysent->sv_psstrings;
2566 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2571 * This sysctl allows a process to retrieve umask of another process.
2574 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2576 int *name = (int *)arg1;
2577 u_int namelen = arg2;
2585 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2589 FILEDESC_SLOCK(p->p_fd);
2590 fd_cmask = p->p_fd->fd_cmask;
2591 FILEDESC_SUNLOCK(p->p_fd);
2593 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2598 * This sysctl allows a process to set and retrieve binary osreldate of
2602 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2604 int *name = (int *)arg1;
2605 u_int namelen = arg2;
2607 int flags, error, osrel;
2612 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2615 flags = PGET_HOLD | PGET_NOTWEXIT;
2616 if (req->newptr != NULL)
2617 flags |= PGET_CANDEBUG;
2619 flags |= PGET_CANSEE;
2620 error = pget((pid_t)name[0], flags, &p);
2624 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2628 if (req->newptr != NULL) {
2629 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2643 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2645 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2646 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2647 "Return entire process table");
2649 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2650 sysctl_kern_proc, "Process table");
2652 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2653 sysctl_kern_proc, "Process table");
2655 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2656 sysctl_kern_proc, "Process table");
2658 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2659 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2661 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2662 sysctl_kern_proc, "Process table");
2664 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2665 sysctl_kern_proc, "Process table");
2667 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2668 sysctl_kern_proc, "Process table");
2670 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2671 sysctl_kern_proc, "Process table");
2673 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2674 sysctl_kern_proc, "Return process table, no threads");
2676 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2677 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2678 sysctl_kern_proc_args, "Process argument list");
2680 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2681 sysctl_kern_proc_env, "Process environment");
2683 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2684 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2686 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2687 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2689 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2690 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2691 "Process syscall vector name (ABI type)");
2693 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2694 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2696 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2697 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2699 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2700 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2702 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2703 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2705 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2706 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2708 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2709 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2711 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2712 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2714 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2715 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2717 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2718 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2719 "Return process table, no threads");
2721 #ifdef COMPAT_FREEBSD7
2722 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2723 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2726 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2727 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2729 #if defined(STACK) || defined(DDB)
2730 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2731 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2734 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2735 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2737 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2738 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2739 "Process resource limits");
2741 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2742 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2743 "Process ps_strings location");
2745 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2746 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2748 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2749 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2750 "Process binary osreldate");