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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22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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29 * @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
37 #include "opt_kdtrace.h"
38 #include "opt_ktrace.h"
39 #include "opt_kstack_pages.h"
40 #include "opt_stack.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/kernel.h>
47 #include <sys/limits.h>
49 #include <sys/loginclass.h>
50 #include <sys/malloc.h>
52 #include <sys/mount.h>
53 #include <sys/mutex.h>
55 #include <sys/ptrace.h>
56 #include <sys/refcount.h>
57 #include <sys/resourcevar.h>
58 #include <sys/rwlock.h>
60 #include <sys/sysent.h>
61 #include <sys/sched.h>
63 #include <sys/stack.h>
65 #include <sys/sysctl.h>
66 #include <sys/filedesc.h>
68 #include <sys/signalvar.h>
73 #include <sys/vnode.h>
74 #include <sys/eventhandler.h>
81 #include <vm/vm_param.h>
82 #include <vm/vm_extern.h>
84 #include <vm/vm_map.h>
85 #include <vm/vm_object.h>
86 #include <vm/vm_page.h>
89 #ifdef COMPAT_FREEBSD32
90 #include <compat/freebsd32/freebsd32.h>
91 #include <compat/freebsd32/freebsd32_util.h>
94 SDT_PROVIDER_DEFINE(proc);
95 SDT_PROBE_DEFINE(proc, kernel, ctor, entry, entry);
96 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 0, "struct proc *");
97 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 1, "int");
98 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 2, "void *");
99 SDT_PROBE_ARGTYPE(proc, kernel, ctor, entry, 3, "int");
100 SDT_PROBE_DEFINE(proc, kernel, ctor, return, return);
101 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 0, "struct proc *");
102 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 1, "int");
103 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 2, "void *");
104 SDT_PROBE_ARGTYPE(proc, kernel, ctor, return, 3, "int");
105 SDT_PROBE_DEFINE(proc, kernel, dtor, entry, entry);
106 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 0, "struct proc *");
107 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 1, "int");
108 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 2, "void *");
109 SDT_PROBE_ARGTYPE(proc, kernel, dtor, entry, 3, "struct thread *");
110 SDT_PROBE_DEFINE(proc, kernel, dtor, return, return);
111 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 0, "struct proc *");
112 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 1, "int");
113 SDT_PROBE_ARGTYPE(proc, kernel, dtor, return, 2, "void *");
114 SDT_PROBE_DEFINE(proc, kernel, init, entry, entry);
115 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 0, "struct proc *");
116 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 1, "int");
117 SDT_PROBE_ARGTYPE(proc, kernel, init, entry, 2, "int");
118 SDT_PROBE_DEFINE(proc, kernel, init, return, return);
119 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 0, "struct proc *");
120 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 1, "int");
121 SDT_PROBE_ARGTYPE(proc, kernel, init, return, 2, "int");
123 MALLOC_DEFINE(M_PGRP, "pgrp", "process group header");
124 MALLOC_DEFINE(M_SESSION, "session", "session header");
125 static MALLOC_DEFINE(M_PROC, "proc", "Proc structures");
126 MALLOC_DEFINE(M_SUBPROC, "subproc", "Proc sub-structures");
128 static void doenterpgrp(struct proc *, struct pgrp *);
129 static void orphanpg(struct pgrp *pg);
130 static void fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp);
131 static void fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp);
132 static void fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp,
134 static void pgadjustjobc(struct pgrp *pgrp, int entering);
135 static void pgdelete(struct pgrp *);
136 static int proc_ctor(void *mem, int size, void *arg, int flags);
137 static void proc_dtor(void *mem, int size, void *arg);
138 static int proc_init(void *mem, int size, int flags);
139 static void proc_fini(void *mem, int size);
140 static void pargs_free(struct pargs *pa);
141 static struct proc *zpfind_locked(pid_t pid);
144 * Other process lists
146 struct pidhashhead *pidhashtbl;
148 struct pgrphashhead *pgrphashtbl;
150 struct proclist allproc;
151 struct proclist zombproc;
152 struct sx allproc_lock;
153 struct sx proctree_lock;
154 struct mtx ppeers_lock;
155 uma_zone_t proc_zone;
157 int kstack_pages = KSTACK_PAGES;
158 SYSCTL_INT(_kern, OID_AUTO, kstack_pages, CTLFLAG_RD, &kstack_pages, 0,
159 "Kernel stack size in pages");
161 CTASSERT(sizeof(struct kinfo_proc) == KINFO_PROC_SIZE);
162 #ifdef COMPAT_FREEBSD32
163 CTASSERT(sizeof(struct kinfo_proc32) == KINFO_PROC32_SIZE);
167 * Initialize global process hashing structures.
173 sx_init(&allproc_lock, "allproc");
174 sx_init(&proctree_lock, "proctree");
175 mtx_init(&ppeers_lock, "p_peers", NULL, MTX_DEF);
177 LIST_INIT(&zombproc);
178 pidhashtbl = hashinit(maxproc / 4, M_PROC, &pidhash);
179 pgrphashtbl = hashinit(maxproc / 4, M_PROC, &pgrphash);
180 proc_zone = uma_zcreate("PROC", sched_sizeof_proc(),
181 proc_ctor, proc_dtor, proc_init, proc_fini,
182 UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
187 * Prepare a proc for use.
190 proc_ctor(void *mem, int size, void *arg, int flags)
194 p = (struct proc *)mem;
195 SDT_PROBE(proc, kernel, ctor , entry, p, size, arg, flags, 0);
196 EVENTHANDLER_INVOKE(process_ctor, p);
197 SDT_PROBE(proc, kernel, ctor , return, p, size, arg, flags, 0);
202 * Reclaim a proc after use.
205 proc_dtor(void *mem, int size, void *arg)
210 /* INVARIANTS checks go here */
211 p = (struct proc *)mem;
212 td = FIRST_THREAD_IN_PROC(p);
213 SDT_PROBE(proc, kernel, dtor, entry, p, size, arg, td, 0);
216 KASSERT((p->p_numthreads == 1),
217 ("bad number of threads in exiting process"));
218 KASSERT(STAILQ_EMPTY(&p->p_ktr), ("proc_dtor: non-empty p_ktr"));
220 /* Free all OSD associated to this thread. */
223 EVENTHANDLER_INVOKE(process_dtor, p);
224 if (p->p_ksi != NULL)
225 KASSERT(! KSI_ONQ(p->p_ksi), ("SIGCHLD queue"));
226 SDT_PROBE(proc, kernel, dtor, return, p, size, arg, 0, 0);
230 * Initialize type-stable parts of a proc (when newly created).
233 proc_init(void *mem, int size, int flags)
237 p = (struct proc *)mem;
238 SDT_PROBE(proc, kernel, init, entry, p, size, flags, 0, 0);
239 p->p_sched = (struct p_sched *)&p[1];
240 bzero(&p->p_mtx, sizeof(struct mtx));
241 mtx_init(&p->p_mtx, "process lock", NULL, MTX_DEF | MTX_DUPOK);
242 mtx_init(&p->p_slock, "process slock", NULL, MTX_SPIN | MTX_RECURSE);
243 cv_init(&p->p_pwait, "ppwait");
244 cv_init(&p->p_dbgwait, "dbgwait");
245 TAILQ_INIT(&p->p_threads); /* all threads in proc */
246 EVENTHANDLER_INVOKE(process_init, p);
247 p->p_stats = pstats_alloc();
248 SDT_PROBE(proc, kernel, init, return, p, size, flags, 0, 0);
253 * UMA should ensure that this function is never called.
254 * Freeing a proc structure would violate type stability.
257 proc_fini(void *mem, int size)
262 p = (struct proc *)mem;
263 EVENTHANDLER_INVOKE(process_fini, p);
264 pstats_free(p->p_stats);
265 thread_free(FIRST_THREAD_IN_PROC(p));
266 mtx_destroy(&p->p_mtx);
267 if (p->p_ksi != NULL)
268 ksiginfo_free(p->p_ksi);
270 panic("proc reclaimed");
275 * Is p an inferior of the current process?
279 register struct proc *p;
282 sx_assert(&proctree_lock, SX_LOCKED);
283 for (; p != curproc; p = p->p_pptr)
290 pfind_locked(pid_t pid)
294 sx_assert(&allproc_lock, SX_LOCKED);
295 LIST_FOREACH(p, PIDHASH(pid), p_hash) {
296 if (p->p_pid == pid) {
298 if (p->p_state == PRS_NEW) {
309 * Locate a process by number; return only "live" processes -- i.e., neither
310 * zombies nor newly born but incompletely initialized processes. By not
311 * returning processes in the PRS_NEW state, we allow callers to avoid
312 * testing for that condition to avoid dereferencing p_ucred, et al.
319 sx_slock(&allproc_lock);
320 p = pfind_locked(pid);
321 sx_sunlock(&allproc_lock);
326 pfind_tid_locked(pid_t tid)
331 sx_assert(&allproc_lock, SX_LOCKED);
332 FOREACH_PROC_IN_SYSTEM(p) {
334 if (p->p_state == PRS_NEW) {
338 FOREACH_THREAD_IN_PROC(p, td) {
339 if (td->td_tid == tid)
349 * Locate a process group by number.
350 * The caller must hold proctree_lock.
356 register struct pgrp *pgrp;
358 sx_assert(&proctree_lock, SX_LOCKED);
360 LIST_FOREACH(pgrp, PGRPHASH(pgid), pg_hash) {
361 if (pgrp->pg_id == pgid) {
370 * Locate process and do additional manipulations, depending on flags.
373 pget(pid_t pid, int flags, struct proc **pp)
378 sx_slock(&allproc_lock);
379 if (pid <= PID_MAX) {
380 p = pfind_locked(pid);
381 if (p == NULL && (flags & PGET_NOTWEXIT) == 0)
382 p = zpfind_locked(pid);
383 } else if ((flags & PGET_NOTID) == 0) {
384 p = pfind_tid_locked(pid);
388 sx_sunlock(&allproc_lock);
391 if ((flags & PGET_CANSEE) != 0) {
392 error = p_cansee(curthread, p);
396 if ((flags & PGET_CANDEBUG) != 0) {
397 error = p_candebug(curthread, p);
401 if ((flags & PGET_ISCURRENT) != 0 && curproc != p) {
405 if ((flags & PGET_NOTWEXIT) != 0 && (p->p_flag & P_WEXIT) != 0) {
409 if ((flags & PGET_NOTINEXEC) != 0 && (p->p_flag & P_INEXEC) != 0) {
411 * XXXRW: Not clear ESRCH is the right error during proc
417 if ((flags & PGET_HOLD) != 0) {
429 * Create a new process group.
430 * pgid must be equal to the pid of p.
431 * Begin a new session if required.
434 enterpgrp(p, pgid, pgrp, sess)
435 register struct proc *p;
438 struct session *sess;
441 sx_assert(&proctree_lock, SX_XLOCKED);
443 KASSERT(pgrp != NULL, ("enterpgrp: pgrp == NULL"));
444 KASSERT(p->p_pid == pgid,
445 ("enterpgrp: new pgrp and pid != pgid"));
446 KASSERT(pgfind(pgid) == NULL,
447 ("enterpgrp: pgrp with pgid exists"));
448 KASSERT(!SESS_LEADER(p),
449 ("enterpgrp: session leader attempted setpgrp"));
451 mtx_init(&pgrp->pg_mtx, "process group", NULL, MTX_DEF | MTX_DUPOK);
457 mtx_init(&sess->s_mtx, "session", NULL, MTX_DEF);
459 p->p_flag &= ~P_CONTROLT;
463 sess->s_sid = p->p_pid;
464 refcount_init(&sess->s_count, 1);
465 sess->s_ttyvp = NULL;
466 sess->s_ttydp = NULL;
468 bcopy(p->p_session->s_login, sess->s_login,
469 sizeof(sess->s_login));
470 pgrp->pg_session = sess;
471 KASSERT(p == curproc,
472 ("enterpgrp: mksession and p != curproc"));
474 pgrp->pg_session = p->p_session;
475 sess_hold(pgrp->pg_session);
479 LIST_INIT(&pgrp->pg_members);
482 * As we have an exclusive lock of proctree_lock,
483 * this should not deadlock.
485 LIST_INSERT_HEAD(PGRPHASH(pgid), pgrp, pg_hash);
487 SLIST_INIT(&pgrp->pg_sigiolst);
490 doenterpgrp(p, pgrp);
496 * Move p to an existing process group
499 enterthispgrp(p, pgrp)
500 register struct proc *p;
504 sx_assert(&proctree_lock, SX_XLOCKED);
505 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
506 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
507 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
508 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
509 KASSERT(pgrp->pg_session == p->p_session,
510 ("%s: pgrp's session %p, p->p_session %p.\n",
514 KASSERT(pgrp != p->p_pgrp,
515 ("%s: p belongs to pgrp.", __func__));
517 doenterpgrp(p, pgrp);
523 * Move p to a process group
530 struct pgrp *savepgrp;
532 sx_assert(&proctree_lock, SX_XLOCKED);
533 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
534 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
535 PGRP_LOCK_ASSERT(p->p_pgrp, MA_NOTOWNED);
536 SESS_LOCK_ASSERT(p->p_session, MA_NOTOWNED);
538 savepgrp = p->p_pgrp;
541 * Adjust eligibility of affected pgrps to participate in job control.
542 * Increment eligibility counts before decrementing, otherwise we
543 * could reach 0 spuriously during the first call.
546 fixjobc(p, p->p_pgrp, 0);
551 LIST_REMOVE(p, p_pglist);
554 LIST_INSERT_HEAD(&pgrp->pg_members, p, p_pglist);
555 PGRP_UNLOCK(savepgrp);
557 if (LIST_EMPTY(&savepgrp->pg_members))
562 * remove process from process group
566 register struct proc *p;
568 struct pgrp *savepgrp;
570 sx_assert(&proctree_lock, SX_XLOCKED);
571 savepgrp = p->p_pgrp;
574 LIST_REMOVE(p, p_pglist);
577 PGRP_UNLOCK(savepgrp);
578 if (LIST_EMPTY(&savepgrp->pg_members))
584 * delete a process group
588 register struct pgrp *pgrp;
590 struct session *savesess;
593 sx_assert(&proctree_lock, SX_XLOCKED);
594 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
595 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
598 * Reset any sigio structures pointing to us as a result of
599 * F_SETOWN with our pgid.
601 funsetownlst(&pgrp->pg_sigiolst);
604 tp = pgrp->pg_session->s_ttyp;
605 LIST_REMOVE(pgrp, pg_hash);
606 savesess = pgrp->pg_session;
609 /* Remove the reference to the pgrp before deallocating it. */
612 tty_rel_pgrp(tp, pgrp);
615 mtx_destroy(&pgrp->pg_mtx);
617 sess_release(savesess);
621 pgadjustjobc(pgrp, entering)
631 if (pgrp->pg_jobc == 0)
638 * Adjust pgrp jobc counters when specified process changes process group.
639 * We count the number of processes in each process group that "qualify"
640 * the group for terminal job control (those with a parent in a different
641 * process group of the same session). If that count reaches zero, the
642 * process group becomes orphaned. Check both the specified process'
643 * process group and that of its children.
644 * entering == 0 => p is leaving specified group.
645 * entering == 1 => p is entering specified group.
648 fixjobc(p, pgrp, entering)
649 register struct proc *p;
650 register struct pgrp *pgrp;
653 register struct pgrp *hispgrp;
654 register struct session *mysession;
656 sx_assert(&proctree_lock, SX_LOCKED);
657 PROC_LOCK_ASSERT(p, MA_NOTOWNED);
658 PGRP_LOCK_ASSERT(pgrp, MA_NOTOWNED);
659 SESS_LOCK_ASSERT(pgrp->pg_session, MA_NOTOWNED);
662 * Check p's parent to see whether p qualifies its own process
663 * group; if so, adjust count for p's process group.
665 mysession = pgrp->pg_session;
666 if ((hispgrp = p->p_pptr->p_pgrp) != pgrp &&
667 hispgrp->pg_session == mysession)
668 pgadjustjobc(pgrp, entering);
671 * Check this process' children to see whether they qualify
672 * their process groups; if so, adjust counts for children's
675 LIST_FOREACH(p, &p->p_children, p_sibling) {
677 if (hispgrp == pgrp ||
678 hispgrp->pg_session != mysession)
681 if (p->p_state == PRS_ZOMBIE) {
686 pgadjustjobc(hispgrp, entering);
691 * A process group has become orphaned;
692 * if there are any stopped processes in the group,
693 * hang-up all process in that group.
699 register struct proc *p;
701 PGRP_LOCK_ASSERT(pg, MA_OWNED);
703 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
705 if (P_SHOULDSTOP(p)) {
707 LIST_FOREACH(p, &pg->pg_members, p_pglist) {
709 kern_psignal(p, SIGHUP);
710 kern_psignal(p, SIGCONT);
720 sess_hold(struct session *s)
723 refcount_acquire(&s->s_count);
727 sess_release(struct session *s)
730 if (refcount_release(&s->s_count)) {
731 if (s->s_ttyp != NULL) {
733 tty_rel_sess(s->s_ttyp, s);
735 mtx_destroy(&s->s_mtx);
742 DB_SHOW_COMMAND(pgrpdump, pgrpdump)
744 register struct pgrp *pgrp;
745 register struct proc *p;
748 for (i = 0; i <= pgrphash; i++) {
749 if (!LIST_EMPTY(&pgrphashtbl[i])) {
750 printf("\tindx %d\n", i);
751 LIST_FOREACH(pgrp, &pgrphashtbl[i], pg_hash) {
753 "\tpgrp %p, pgid %ld, sess %p, sesscnt %d, mem %p\n",
754 (void *)pgrp, (long)pgrp->pg_id,
755 (void *)pgrp->pg_session,
756 pgrp->pg_session->s_count,
757 (void *)LIST_FIRST(&pgrp->pg_members));
758 LIST_FOREACH(p, &pgrp->pg_members, p_pglist) {
759 printf("\t\tpid %ld addr %p pgrp %p\n",
760 (long)p->p_pid, (void *)p,
770 * Calculate the kinfo_proc members which contain process-wide
772 * Must be called with the target process locked.
775 fill_kinfo_aggregate(struct proc *p, struct kinfo_proc *kp)
779 PROC_LOCK_ASSERT(p, MA_OWNED);
783 FOREACH_THREAD_IN_PROC(p, td) {
785 kp->ki_pctcpu += sched_pctcpu(td);
786 kp->ki_estcpu += td->td_estcpu;
792 * Clear kinfo_proc and fill in any information that is common
793 * to all threads in the process.
794 * Must be called with the target process locked.
797 fill_kinfo_proc_only(struct proc *p, struct kinfo_proc *kp)
805 PROC_LOCK_ASSERT(p, MA_OWNED);
806 bzero(kp, sizeof(*kp));
808 kp->ki_structsize = sizeof(*kp);
810 kp->ki_addr =/* p->p_addr; */0; /* XXX */
811 kp->ki_args = p->p_args;
812 kp->ki_textvp = p->p_textvp;
814 kp->ki_tracep = p->p_tracevp;
815 kp->ki_traceflag = p->p_traceflag;
818 kp->ki_vmspace = p->p_vmspace;
819 kp->ki_flag = p->p_flag;
822 kp->ki_uid = cred->cr_uid;
823 kp->ki_ruid = cred->cr_ruid;
824 kp->ki_svuid = cred->cr_svuid;
826 if (cred->cr_flags & CRED_FLAG_CAPMODE)
827 kp->ki_cr_flags |= KI_CRF_CAPABILITY_MODE;
828 /* XXX bde doesn't like KI_NGROUPS */
829 if (cred->cr_ngroups > KI_NGROUPS) {
830 kp->ki_ngroups = KI_NGROUPS;
831 kp->ki_cr_flags |= KI_CRF_GRP_OVERFLOW;
833 kp->ki_ngroups = cred->cr_ngroups;
834 bcopy(cred->cr_groups, kp->ki_groups,
835 kp->ki_ngroups * sizeof(gid_t));
836 kp->ki_rgid = cred->cr_rgid;
837 kp->ki_svgid = cred->cr_svgid;
838 /* If jailed(cred), emulate the old P_JAILED flag. */
840 kp->ki_flag |= P_JAILED;
841 /* If inside the jail, use 0 as a jail ID. */
842 if (cred->cr_prison != curthread->td_ucred->cr_prison)
843 kp->ki_jid = cred->cr_prison->pr_id;
845 strlcpy(kp->ki_loginclass, cred->cr_loginclass->lc_name,
846 sizeof(kp->ki_loginclass));
850 mtx_lock(&ps->ps_mtx);
851 kp->ki_sigignore = ps->ps_sigignore;
852 kp->ki_sigcatch = ps->ps_sigcatch;
853 mtx_unlock(&ps->ps_mtx);
855 if (p->p_state != PRS_NEW &&
856 p->p_state != PRS_ZOMBIE &&
857 p->p_vmspace != NULL) {
858 struct vmspace *vm = p->p_vmspace;
860 kp->ki_size = vm->vm_map.size;
861 kp->ki_rssize = vmspace_resident_count(vm); /*XXX*/
862 FOREACH_THREAD_IN_PROC(p, td0) {
863 if (!TD_IS_SWAPPED(td0))
864 kp->ki_rssize += td0->td_kstack_pages;
866 kp->ki_swrss = vm->vm_swrss;
867 kp->ki_tsize = vm->vm_tsize;
868 kp->ki_dsize = vm->vm_dsize;
869 kp->ki_ssize = vm->vm_ssize;
870 } else if (p->p_state == PRS_ZOMBIE)
872 if (kp->ki_flag & P_INMEM)
873 kp->ki_sflag = PS_INMEM;
876 /* Calculate legacy swtime as seconds since 'swtick'. */
877 kp->ki_swtime = (ticks - p->p_swtick) / hz;
878 kp->ki_pid = p->p_pid;
879 kp->ki_nice = p->p_nice;
880 kp->ki_start = p->p_stats->p_start;
881 timevaladd(&kp->ki_start, &boottime);
883 rufetch(p, &kp->ki_rusage);
884 kp->ki_runtime = cputick2usec(p->p_rux.rux_runtime);
885 calcru(p, &kp->ki_rusage.ru_utime, &kp->ki_rusage.ru_stime);
887 calccru(p, &kp->ki_childutime, &kp->ki_childstime);
888 /* Some callers want child times in a single value. */
889 kp->ki_childtime = kp->ki_childstime;
890 timevaladd(&kp->ki_childtime, &kp->ki_childutime);
892 FOREACH_THREAD_IN_PROC(p, td0)
893 kp->ki_cow += td0->td_cow;
897 kp->ki_pgid = p->p_pgrp->pg_id;
898 kp->ki_jobc = p->p_pgrp->pg_jobc;
899 sp = p->p_pgrp->pg_session;
902 kp->ki_sid = sp->s_sid;
904 strlcpy(kp->ki_login, sp->s_login,
905 sizeof(kp->ki_login));
907 kp->ki_kiflag |= KI_CTTY;
909 kp->ki_kiflag |= KI_SLEADER;
910 /* XXX proctree_lock */
915 if ((p->p_flag & P_CONTROLT) && tp != NULL) {
916 kp->ki_tdev = tty_udev(tp);
917 kp->ki_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
919 kp->ki_tsid = tp->t_session->s_sid;
922 if (p->p_comm[0] != '\0')
923 strlcpy(kp->ki_comm, p->p_comm, sizeof(kp->ki_comm));
924 if (p->p_sysent && p->p_sysent->sv_name != NULL &&
925 p->p_sysent->sv_name[0] != '\0')
926 strlcpy(kp->ki_emul, p->p_sysent->sv_name, sizeof(kp->ki_emul));
927 kp->ki_siglist = p->p_siglist;
928 kp->ki_xstat = p->p_xstat;
929 kp->ki_acflag = p->p_acflag;
930 kp->ki_lock = p->p_lock;
932 kp->ki_ppid = p->p_pptr->p_pid;
936 * Fill in information that is thread specific. Must be called with
937 * target process locked. If 'preferthread' is set, overwrite certain
938 * process-related fields that are maintained for both threads and
942 fill_kinfo_thread(struct thread *td, struct kinfo_proc *kp, int preferthread)
948 PROC_LOCK_ASSERT(p, MA_OWNED);
953 if (td->td_wmesg != NULL)
954 strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg));
956 bzero(kp->ki_wmesg, sizeof(kp->ki_wmesg));
957 strlcpy(kp->ki_tdname, td->td_name, sizeof(kp->ki_tdname));
958 if (TD_ON_LOCK(td)) {
959 kp->ki_kiflag |= KI_LOCKBLOCK;
960 strlcpy(kp->ki_lockname, td->td_lockname,
961 sizeof(kp->ki_lockname));
963 kp->ki_kiflag &= ~KI_LOCKBLOCK;
964 bzero(kp->ki_lockname, sizeof(kp->ki_lockname));
967 if (p->p_state == PRS_NORMAL) { /* approximate. */
968 if (TD_ON_RUNQ(td) ||
972 } else if (P_SHOULDSTOP(p)) {
974 } else if (TD_IS_SLEEPING(td)) {
975 kp->ki_stat = SSLEEP;
976 } else if (TD_ON_LOCK(td)) {
981 } else if (p->p_state == PRS_ZOMBIE) {
987 /* Things in the thread */
988 kp->ki_wchan = td->td_wchan;
989 kp->ki_pri.pri_level = td->td_priority;
990 kp->ki_pri.pri_native = td->td_base_pri;
991 kp->ki_lastcpu = td->td_lastcpu;
992 kp->ki_oncpu = td->td_oncpu;
993 kp->ki_tdflags = td->td_flags;
994 kp->ki_tid = td->td_tid;
995 kp->ki_numthreads = p->p_numthreads;
996 kp->ki_pcb = td->td_pcb;
997 kp->ki_kstack = (void *)td->td_kstack;
998 kp->ki_slptime = (ticks - td->td_slptick) / hz;
999 kp->ki_pri.pri_class = td->td_pri_class;
1000 kp->ki_pri.pri_user = td->td_user_pri;
1003 rufetchtd(td, &kp->ki_rusage);
1004 kp->ki_runtime = cputick2usec(td->td_rux.rux_runtime);
1005 kp->ki_pctcpu = sched_pctcpu(td);
1006 kp->ki_estcpu = td->td_estcpu;
1007 kp->ki_cow = td->td_cow;
1010 /* We can't get this anymore but ps etc never used it anyway. */
1014 kp->ki_siglist = td->td_siglist;
1015 kp->ki_sigmask = td->td_sigmask;
1022 * Fill in a kinfo_proc structure for the specified process.
1023 * Must be called with the target process locked.
1026 fill_kinfo_proc(struct proc *p, struct kinfo_proc *kp)
1029 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1031 fill_kinfo_proc_only(p, kp);
1032 fill_kinfo_thread(FIRST_THREAD_IN_PROC(p), kp, 0);
1033 fill_kinfo_aggregate(p, kp);
1040 return (malloc(sizeof(struct pstats), M_SUBPROC, M_ZERO|M_WAITOK));
1044 * Copy parts of p_stats; zero the rest of p_stats (statistics).
1047 pstats_fork(struct pstats *src, struct pstats *dst)
1050 bzero(&dst->pstat_startzero,
1051 __rangeof(struct pstats, pstat_startzero, pstat_endzero));
1052 bcopy(&src->pstat_startcopy, &dst->pstat_startcopy,
1053 __rangeof(struct pstats, pstat_startcopy, pstat_endcopy));
1057 pstats_free(struct pstats *ps)
1060 free(ps, M_SUBPROC);
1063 static struct proc *
1064 zpfind_locked(pid_t pid)
1068 sx_assert(&allproc_lock, SX_LOCKED);
1069 LIST_FOREACH(p, &zombproc, p_list) {
1070 if (p->p_pid == pid) {
1079 * Locate a zombie process by number
1086 sx_slock(&allproc_lock);
1087 p = zpfind_locked(pid);
1088 sx_sunlock(&allproc_lock);
1092 #ifdef COMPAT_FREEBSD32
1095 * This function is typically used to copy out the kernel address, so
1096 * it can be replaced by assignment of zero.
1098 static inline uint32_t
1099 ptr32_trim(void *ptr)
1103 uptr = (uintptr_t)ptr;
1104 return ((uptr > UINT_MAX) ? 0 : uptr);
1107 #define PTRTRIM_CP(src,dst,fld) \
1108 do { (dst).fld = ptr32_trim((src).fld); } while (0)
1111 freebsd32_kinfo_proc_out(const struct kinfo_proc *ki, struct kinfo_proc32 *ki32)
1115 bzero(ki32, sizeof(struct kinfo_proc32));
1116 ki32->ki_structsize = sizeof(struct kinfo_proc32);
1117 CP(*ki, *ki32, ki_layout);
1118 PTRTRIM_CP(*ki, *ki32, ki_args);
1119 PTRTRIM_CP(*ki, *ki32, ki_paddr);
1120 PTRTRIM_CP(*ki, *ki32, ki_addr);
1121 PTRTRIM_CP(*ki, *ki32, ki_tracep);
1122 PTRTRIM_CP(*ki, *ki32, ki_textvp);
1123 PTRTRIM_CP(*ki, *ki32, ki_fd);
1124 PTRTRIM_CP(*ki, *ki32, ki_vmspace);
1125 PTRTRIM_CP(*ki, *ki32, ki_wchan);
1126 CP(*ki, *ki32, ki_pid);
1127 CP(*ki, *ki32, ki_ppid);
1128 CP(*ki, *ki32, ki_pgid);
1129 CP(*ki, *ki32, ki_tpgid);
1130 CP(*ki, *ki32, ki_sid);
1131 CP(*ki, *ki32, ki_tsid);
1132 CP(*ki, *ki32, ki_jobc);
1133 CP(*ki, *ki32, ki_tdev);
1134 CP(*ki, *ki32, ki_siglist);
1135 CP(*ki, *ki32, ki_sigmask);
1136 CP(*ki, *ki32, ki_sigignore);
1137 CP(*ki, *ki32, ki_sigcatch);
1138 CP(*ki, *ki32, ki_uid);
1139 CP(*ki, *ki32, ki_ruid);
1140 CP(*ki, *ki32, ki_svuid);
1141 CP(*ki, *ki32, ki_rgid);
1142 CP(*ki, *ki32, ki_svgid);
1143 CP(*ki, *ki32, ki_ngroups);
1144 for (i = 0; i < KI_NGROUPS; i++)
1145 CP(*ki, *ki32, ki_groups[i]);
1146 CP(*ki, *ki32, ki_size);
1147 CP(*ki, *ki32, ki_rssize);
1148 CP(*ki, *ki32, ki_swrss);
1149 CP(*ki, *ki32, ki_tsize);
1150 CP(*ki, *ki32, ki_dsize);
1151 CP(*ki, *ki32, ki_ssize);
1152 CP(*ki, *ki32, ki_xstat);
1153 CP(*ki, *ki32, ki_acflag);
1154 CP(*ki, *ki32, ki_pctcpu);
1155 CP(*ki, *ki32, ki_estcpu);
1156 CP(*ki, *ki32, ki_slptime);
1157 CP(*ki, *ki32, ki_swtime);
1158 CP(*ki, *ki32, ki_cow);
1159 CP(*ki, *ki32, ki_runtime);
1160 TV_CP(*ki, *ki32, ki_start);
1161 TV_CP(*ki, *ki32, ki_childtime);
1162 CP(*ki, *ki32, ki_flag);
1163 CP(*ki, *ki32, ki_kiflag);
1164 CP(*ki, *ki32, ki_traceflag);
1165 CP(*ki, *ki32, ki_stat);
1166 CP(*ki, *ki32, ki_nice);
1167 CP(*ki, *ki32, ki_lock);
1168 CP(*ki, *ki32, ki_rqindex);
1169 CP(*ki, *ki32, ki_oncpu);
1170 CP(*ki, *ki32, ki_lastcpu);
1171 bcopy(ki->ki_tdname, ki32->ki_tdname, TDNAMLEN + 1);
1172 bcopy(ki->ki_wmesg, ki32->ki_wmesg, WMESGLEN + 1);
1173 bcopy(ki->ki_login, ki32->ki_login, LOGNAMELEN + 1);
1174 bcopy(ki->ki_lockname, ki32->ki_lockname, LOCKNAMELEN + 1);
1175 bcopy(ki->ki_comm, ki32->ki_comm, COMMLEN + 1);
1176 bcopy(ki->ki_emul, ki32->ki_emul, KI_EMULNAMELEN + 1);
1177 bcopy(ki->ki_loginclass, ki32->ki_loginclass, LOGINCLASSLEN + 1);
1178 CP(*ki, *ki32, ki_cr_flags);
1179 CP(*ki, *ki32, ki_jid);
1180 CP(*ki, *ki32, ki_numthreads);
1181 CP(*ki, *ki32, ki_tid);
1182 CP(*ki, *ki32, ki_pri);
1183 freebsd32_rusage_out(&ki->ki_rusage, &ki32->ki_rusage);
1184 freebsd32_rusage_out(&ki->ki_rusage_ch, &ki32->ki_rusage_ch);
1185 PTRTRIM_CP(*ki, *ki32, ki_pcb);
1186 PTRTRIM_CP(*ki, *ki32, ki_kstack);
1187 PTRTRIM_CP(*ki, *ki32, ki_udata);
1188 CP(*ki, *ki32, ki_sflag);
1189 CP(*ki, *ki32, ki_tdflags);
1194 kern_proc_out(struct proc *p, struct sbuf *sb, int flags)
1197 struct kinfo_proc ki;
1198 #ifdef COMPAT_FREEBSD32
1199 struct kinfo_proc32 ki32;
1203 PROC_LOCK_ASSERT(p, MA_OWNED);
1204 MPASS(FIRST_THREAD_IN_PROC(p) != NULL);
1207 fill_kinfo_proc(p, &ki);
1208 if ((flags & KERN_PROC_NOTHREADS) != 0) {
1209 #ifdef COMPAT_FREEBSD32
1210 if ((flags & KERN_PROC_MASK32) != 0) {
1211 freebsd32_kinfo_proc_out(&ki, &ki32);
1212 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1215 error = sbuf_bcat(sb, &ki, sizeof(ki));
1217 FOREACH_THREAD_IN_PROC(p, td) {
1218 fill_kinfo_thread(td, &ki, 1);
1219 #ifdef COMPAT_FREEBSD32
1220 if ((flags & KERN_PROC_MASK32) != 0) {
1221 freebsd32_kinfo_proc_out(&ki, &ki32);
1222 error = sbuf_bcat(sb, &ki32, sizeof(ki32));
1225 error = sbuf_bcat(sb, &ki, sizeof(ki));
1235 sysctl_out_proc(struct proc *p, struct sysctl_req *req, int flags,
1239 struct kinfo_proc ki;
1245 sbuf_new_for_sysctl(&sb, (char *)&ki, sizeof(ki), req);
1246 error = kern_proc_out(p, &sb, flags);
1247 error2 = sbuf_finish(&sb);
1251 else if (error2 != 0)
1271 sysctl_kern_proc(SYSCTL_HANDLER_ARGS)
1273 int *name = (int *)arg1;
1274 u_int namelen = arg2;
1276 int flags, doingzomb, oid_number;
1279 oid_number = oidp->oid_number;
1280 if (oid_number != KERN_PROC_ALL &&
1281 (oid_number & KERN_PROC_INC_THREAD) == 0)
1282 flags = KERN_PROC_NOTHREADS;
1285 oid_number &= ~KERN_PROC_INC_THREAD;
1287 #ifdef COMPAT_FREEBSD32
1288 if (req->flags & SCTL_MASK32)
1289 flags |= KERN_PROC_MASK32;
1291 if (oid_number == KERN_PROC_PID) {
1294 error = sysctl_wire_old_buffer(req, 0);
1297 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1300 error = sysctl_out_proc(p, req, flags, 0);
1304 switch (oid_number) {
1309 case KERN_PROC_PROC:
1310 if (namelen != 0 && namelen != 1)
1320 /* overestimate by 5 procs */
1321 error = SYSCTL_OUT(req, 0, sizeof (struct kinfo_proc) * 5);
1325 error = sysctl_wire_old_buffer(req, 0);
1328 sx_slock(&allproc_lock);
1329 for (doingzomb=0 ; doingzomb < 2 ; doingzomb++) {
1331 p = LIST_FIRST(&allproc);
1333 p = LIST_FIRST(&zombproc);
1334 for (; p != 0; p = LIST_NEXT(p, p_list)) {
1336 * Skip embryonic processes.
1339 if (p->p_state == PRS_NEW) {
1343 KASSERT(p->p_ucred != NULL,
1344 ("process credential is NULL for non-NEW proc"));
1346 * Show a user only appropriate processes.
1348 if (p_cansee(curthread, p)) {
1353 * TODO - make more efficient (see notes below).
1356 switch (oid_number) {
1359 if (p->p_ucred->cr_gid != (gid_t)name[0]) {
1365 case KERN_PROC_PGRP:
1366 /* could do this by traversing pgrp */
1367 if (p->p_pgrp == NULL ||
1368 p->p_pgrp->pg_id != (pid_t)name[0]) {
1374 case KERN_PROC_RGID:
1375 if (p->p_ucred->cr_rgid != (gid_t)name[0]) {
1381 case KERN_PROC_SESSION:
1382 if (p->p_session == NULL ||
1383 p->p_session->s_sid != (pid_t)name[0]) {
1390 if ((p->p_flag & P_CONTROLT) == 0 ||
1391 p->p_session == NULL) {
1395 /* XXX proctree_lock */
1396 SESS_LOCK(p->p_session);
1397 if (p->p_session->s_ttyp == NULL ||
1398 tty_udev(p->p_session->s_ttyp) !=
1400 SESS_UNLOCK(p->p_session);
1404 SESS_UNLOCK(p->p_session);
1408 if (p->p_ucred->cr_uid != (uid_t)name[0]) {
1414 case KERN_PROC_RUID:
1415 if (p->p_ucred->cr_ruid != (uid_t)name[0]) {
1421 case KERN_PROC_PROC:
1429 error = sysctl_out_proc(p, req, flags, doingzomb);
1431 sx_sunlock(&allproc_lock);
1436 sx_sunlock(&allproc_lock);
1441 pargs_alloc(int len)
1445 pa = malloc(sizeof(struct pargs) + len, M_PARGS,
1447 refcount_init(&pa->ar_ref, 1);
1448 pa->ar_length = len;
1453 pargs_free(struct pargs *pa)
1460 pargs_hold(struct pargs *pa)
1465 refcount_acquire(&pa->ar_ref);
1469 pargs_drop(struct pargs *pa)
1474 if (refcount_release(&pa->ar_ref))
1479 proc_read_mem(struct thread *td, struct proc *p, vm_offset_t offset, void* buf,
1485 iov.iov_base = (caddr_t)buf;
1489 uio.uio_offset = offset;
1490 uio.uio_resid = (ssize_t)len;
1491 uio.uio_segflg = UIO_SYSSPACE;
1492 uio.uio_rw = UIO_READ;
1495 return (proc_rwmem(p, &uio));
1499 proc_read_string(struct thread *td, struct proc *p, const char *sptr, char *buf,
1505 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, len);
1507 * Reading the chunk may validly return EFAULT if the string is shorter
1508 * than the chunk and is aligned at the end of the page, assuming the
1509 * next page is not mapped. So if EFAULT is returned do a fallback to
1510 * one byte read loop.
1512 if (error == EFAULT) {
1513 for (i = 0; i < len; i++, buf++, sptr++) {
1514 error = proc_read_mem(td, p, (vm_offset_t)sptr, buf, 1);
1525 #define PROC_AUXV_MAX 256 /* Safety limit on auxv size. */
1527 enum proc_vector_type {
1533 #ifdef COMPAT_FREEBSD32
1535 get_proc_vector32(struct thread *td, struct proc *p, char ***proc_vectorp,
1536 size_t *vsizep, enum proc_vector_type type)
1538 struct freebsd32_ps_strings pss;
1540 vm_offset_t vptr, ptr;
1541 uint32_t *proc_vector32;
1546 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1552 vptr = (vm_offset_t)PTRIN(pss.ps_argvstr);
1553 vsize = pss.ps_nargvstr;
1554 if (vsize > ARG_MAX)
1556 size = vsize * sizeof(int32_t);
1559 vptr = (vm_offset_t)PTRIN(pss.ps_envstr);
1560 vsize = pss.ps_nenvstr;
1561 if (vsize > ARG_MAX)
1563 size = vsize * sizeof(int32_t);
1566 vptr = (vm_offset_t)PTRIN(pss.ps_envstr) +
1567 (pss.ps_nenvstr + 1) * sizeof(int32_t);
1570 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1571 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1574 if (aux.a_type == AT_NULL)
1578 if (aux.a_type != AT_NULL)
1581 size = vsize * sizeof(aux);
1584 KASSERT(0, ("Wrong proc vector type: %d", type));
1587 proc_vector32 = malloc(size, M_TEMP, M_WAITOK);
1588 error = proc_read_mem(td, p, vptr, proc_vector32, size);
1591 if (type == PROC_AUX) {
1592 *proc_vectorp = (char **)proc_vector32;
1596 proc_vector = malloc(vsize * sizeof(char *), M_TEMP, M_WAITOK);
1597 for (i = 0; i < (int)vsize; i++)
1598 proc_vector[i] = PTRIN(proc_vector32[i]);
1599 *proc_vectorp = proc_vector;
1602 free(proc_vector32, M_TEMP);
1608 get_proc_vector(struct thread *td, struct proc *p, char ***proc_vectorp,
1609 size_t *vsizep, enum proc_vector_type type)
1611 struct ps_strings pss;
1613 vm_offset_t vptr, ptr;
1618 #ifdef COMPAT_FREEBSD32
1619 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1620 return (get_proc_vector32(td, p, proc_vectorp, vsizep, type));
1622 error = proc_read_mem(td, p, (vm_offset_t)(p->p_sysent->sv_psstrings),
1628 vptr = (vm_offset_t)pss.ps_argvstr;
1629 vsize = pss.ps_nargvstr;
1630 if (vsize > ARG_MAX)
1632 size = vsize * sizeof(char *);
1635 vptr = (vm_offset_t)pss.ps_envstr;
1636 vsize = pss.ps_nenvstr;
1637 if (vsize > ARG_MAX)
1639 size = vsize * sizeof(char *);
1643 * The aux array is just above env array on the stack. Check
1644 * that the address is naturally aligned.
1646 vptr = (vm_offset_t)pss.ps_envstr + (pss.ps_nenvstr + 1)
1648 #if __ELF_WORD_SIZE == 64
1649 if (vptr % sizeof(uint64_t) != 0)
1651 if (vptr % sizeof(uint32_t) != 0)
1655 * We count the array size reading the aux vectors from the
1656 * stack until AT_NULL vector is returned. So (to keep the code
1657 * simple) we read the process stack twice: the first time here
1658 * to find the size and the second time when copying the vectors
1659 * to the allocated proc_vector.
1661 for (ptr = vptr, i = 0; i < PROC_AUXV_MAX; i++) {
1662 error = proc_read_mem(td, p, ptr, &aux, sizeof(aux));
1665 if (aux.a_type == AT_NULL)
1670 * If the PROC_AUXV_MAX entries are iterated over, and we have
1671 * not reached AT_NULL, it is most likely we are reading wrong
1672 * data: either the process doesn't have auxv array or data has
1673 * been modified. Return the error in this case.
1675 if (aux.a_type != AT_NULL)
1678 size = vsize * sizeof(aux);
1681 KASSERT(0, ("Wrong proc vector type: %d", type));
1682 return (EINVAL); /* In case we are built without INVARIANTS. */
1684 proc_vector = malloc(size, M_TEMP, M_WAITOK);
1685 if (proc_vector == NULL)
1687 error = proc_read_mem(td, p, vptr, proc_vector, size);
1689 free(proc_vector, M_TEMP);
1692 *proc_vectorp = proc_vector;
1698 #define GET_PS_STRINGS_CHUNK_SZ 256 /* Chunk size (bytes) for ps_strings operations. */
1701 get_ps_strings(struct thread *td, struct proc *p, struct sbuf *sb,
1702 enum proc_vector_type type)
1704 size_t done, len, nchr, vsize;
1706 char **proc_vector, *sptr;
1707 char pss_string[GET_PS_STRINGS_CHUNK_SZ];
1709 PROC_ASSERT_HELD(p);
1712 * We are not going to read more than 2 * (PATH_MAX + ARG_MAX) bytes.
1714 nchr = 2 * (PATH_MAX + ARG_MAX);
1716 error = get_proc_vector(td, p, &proc_vector, &vsize, type);
1719 for (done = 0, i = 0; i < (int)vsize && done < nchr; i++) {
1721 * The program may have scribbled into its argv array, e.g. to
1722 * remove some arguments. If that has happened, break out
1723 * before trying to read from NULL.
1725 if (proc_vector[i] == NULL)
1727 for (sptr = proc_vector[i]; ; sptr += GET_PS_STRINGS_CHUNK_SZ) {
1728 error = proc_read_string(td, p, sptr, pss_string,
1729 sizeof(pss_string));
1732 len = strnlen(pss_string, GET_PS_STRINGS_CHUNK_SZ);
1733 if (done + len >= nchr)
1734 len = nchr - done - 1;
1735 sbuf_bcat(sb, pss_string, len);
1736 if (len != GET_PS_STRINGS_CHUNK_SZ)
1738 done += GET_PS_STRINGS_CHUNK_SZ;
1740 sbuf_bcat(sb, "", 1);
1744 free(proc_vector, M_TEMP);
1749 proc_getargv(struct thread *td, struct proc *p, struct sbuf *sb)
1752 return (get_ps_strings(curthread, p, sb, PROC_ARG));
1756 proc_getenvv(struct thread *td, struct proc *p, struct sbuf *sb)
1759 return (get_ps_strings(curthread, p, sb, PROC_ENV));
1763 proc_getauxv(struct thread *td, struct proc *p, struct sbuf *sb)
1769 error = get_proc_vector(td, p, &auxv, &vsize, PROC_AUX);
1771 #ifdef COMPAT_FREEBSD32
1772 if (SV_PROC_FLAG(p, SV_ILP32) != 0)
1773 size = vsize * sizeof(Elf32_Auxinfo);
1776 size = vsize * sizeof(Elf_Auxinfo);
1777 error = sbuf_bcat(sb, auxv, size);
1784 * This sysctl allows a process to retrieve the argument list or process
1785 * title for another process without groping around in the address space
1786 * of the other process. It also allow a process to set its own "process
1787 * title to a string of its own choice.
1790 sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
1792 int *name = (int *)arg1;
1793 u_int namelen = arg2;
1794 struct pargs *newpa, *pa;
1797 int flags, error = 0, error2;
1802 flags = PGET_CANSEE;
1803 if (req->newptr != NULL)
1804 flags |= PGET_ISCURRENT;
1805 error = pget((pid_t)name[0], flags, &p);
1813 error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length);
1815 } else if ((p->p_flag & (P_WEXIT | P_SYSTEM)) == 0) {
1818 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1819 error = proc_getargv(curthread, p, &sb);
1820 error2 = sbuf_finish(&sb);
1823 if (error == 0 && error2 != 0)
1828 if (error != 0 || req->newptr == NULL)
1831 if (req->newlen + sizeof(struct pargs) > ps_arg_cache_limit)
1833 newpa = pargs_alloc(req->newlen);
1834 error = SYSCTL_IN(req, newpa->ar_args, req->newlen);
1848 * This sysctl allows a process to retrieve environment of another process.
1851 sysctl_kern_proc_env(SYSCTL_HANDLER_ARGS)
1853 int *name = (int *)arg1;
1854 u_int namelen = arg2;
1862 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1865 if ((p->p_flag & P_SYSTEM) != 0) {
1870 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1871 error = proc_getenvv(curthread, p, &sb);
1872 error2 = sbuf_finish(&sb);
1875 return (error != 0 ? error : error2);
1879 * This sysctl allows a process to retrieve ELF auxiliary vector of
1883 sysctl_kern_proc_auxv(SYSCTL_HANDLER_ARGS)
1885 int *name = (int *)arg1;
1886 u_int namelen = arg2;
1894 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1897 if ((p->p_flag & P_SYSTEM) != 0) {
1901 sbuf_new_for_sysctl(&sb, NULL, GET_PS_STRINGS_CHUNK_SZ, req);
1902 error = proc_getauxv(curthread, p, &sb);
1903 error2 = sbuf_finish(&sb);
1906 return (error != 0 ? error : error2);
1910 * This sysctl allows a process to retrieve the path of the executable for
1911 * itself or another process.
1914 sysctl_kern_proc_pathname(SYSCTL_HANDLER_ARGS)
1916 pid_t *pidp = (pid_t *)arg1;
1917 unsigned int arglen = arg2;
1920 char *retbuf, *freebuf;
1925 if (*pidp == -1) { /* -1 means this process */
1926 p = req->td->td_proc;
1928 error = pget(*pidp, PGET_CANSEE, &p);
1942 error = vn_fullpath(req->td, vp, &retbuf, &freebuf);
1946 error = SYSCTL_OUT(req, retbuf, strlen(retbuf) + 1);
1947 free(freebuf, M_TEMP);
1952 sysctl_kern_proc_sv_name(SYSCTL_HANDLER_ARGS)
1965 error = pget((pid_t)name[0], PGET_CANSEE, &p);
1968 sv_name = p->p_sysent->sv_name;
1970 return (sysctl_handle_string(oidp, sv_name, 0, req));
1973 #ifdef KINFO_OVMENTRY_SIZE
1974 CTASSERT(sizeof(struct kinfo_ovmentry) == KINFO_OVMENTRY_SIZE);
1977 #ifdef COMPAT_FREEBSD7
1979 sysctl_kern_proc_ovmmap(SYSCTL_HANDLER_ARGS)
1981 vm_map_entry_t entry, tmp_entry;
1982 unsigned int last_timestamp;
1983 char *fullpath, *freepath;
1984 struct kinfo_ovmentry *kve;
1994 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
1997 vm = vmspace_acquire_ref(p);
2002 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2005 vm_map_lock_read(map);
2006 for (entry = map->header.next; entry != &map->header;
2007 entry = entry->next) {
2008 vm_object_t obj, tobj, lobj;
2011 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2014 bzero(kve, sizeof(*kve));
2015 kve->kve_structsize = sizeof(*kve);
2017 kve->kve_private_resident = 0;
2018 obj = entry->object.vm_object;
2020 VM_OBJECT_RLOCK(obj);
2021 if (obj->shadow_count == 1)
2022 kve->kve_private_resident =
2023 obj->resident_page_count;
2025 kve->kve_resident = 0;
2026 addr = entry->start;
2027 while (addr < entry->end) {
2028 if (pmap_extract(map->pmap, addr))
2029 kve->kve_resident++;
2033 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2035 VM_OBJECT_RLOCK(tobj);
2037 VM_OBJECT_RUNLOCK(lobj);
2041 kve->kve_start = (void*)entry->start;
2042 kve->kve_end = (void*)entry->end;
2043 kve->kve_offset = (off_t)entry->offset;
2045 if (entry->protection & VM_PROT_READ)
2046 kve->kve_protection |= KVME_PROT_READ;
2047 if (entry->protection & VM_PROT_WRITE)
2048 kve->kve_protection |= KVME_PROT_WRITE;
2049 if (entry->protection & VM_PROT_EXECUTE)
2050 kve->kve_protection |= KVME_PROT_EXEC;
2052 if (entry->eflags & MAP_ENTRY_COW)
2053 kve->kve_flags |= KVME_FLAG_COW;
2054 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2055 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2056 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2057 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2059 last_timestamp = map->timestamp;
2060 vm_map_unlock_read(map);
2062 kve->kve_fileid = 0;
2068 switch (lobj->type) {
2070 kve->kve_type = KVME_TYPE_DEFAULT;
2073 kve->kve_type = KVME_TYPE_VNODE;
2078 kve->kve_type = KVME_TYPE_SWAP;
2081 kve->kve_type = KVME_TYPE_DEVICE;
2084 kve->kve_type = KVME_TYPE_PHYS;
2087 kve->kve_type = KVME_TYPE_DEAD;
2090 kve->kve_type = KVME_TYPE_SG;
2093 kve->kve_type = KVME_TYPE_UNKNOWN;
2097 VM_OBJECT_RUNLOCK(lobj);
2099 kve->kve_ref_count = obj->ref_count;
2100 kve->kve_shadow_count = obj->shadow_count;
2101 VM_OBJECT_RUNLOCK(obj);
2103 vn_fullpath(curthread, vp, &fullpath,
2105 cred = curthread->td_ucred;
2106 vn_lock(vp, LK_SHARED | LK_RETRY);
2107 if (VOP_GETATTR(vp, &va, cred) == 0) {
2108 kve->kve_fileid = va.va_fileid;
2109 kve->kve_fsid = va.va_fsid;
2114 kve->kve_type = KVME_TYPE_NONE;
2115 kve->kve_ref_count = 0;
2116 kve->kve_shadow_count = 0;
2119 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2120 if (freepath != NULL)
2121 free(freepath, M_TEMP);
2123 error = SYSCTL_OUT(req, kve, sizeof(*kve));
2124 vm_map_lock_read(map);
2127 if (last_timestamp != map->timestamp) {
2128 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2132 vm_map_unlock_read(map);
2138 #endif /* COMPAT_FREEBSD7 */
2140 #ifdef KINFO_VMENTRY_SIZE
2141 CTASSERT(sizeof(struct kinfo_vmentry) == KINFO_VMENTRY_SIZE);
2145 * Must be called with the process locked and will return unlocked.
2148 kern_proc_vmmap_out(struct proc *p, struct sbuf *sb)
2150 vm_map_entry_t entry, tmp_entry;
2151 unsigned int last_timestamp;
2152 char *fullpath, *freepath;
2153 struct kinfo_vmentry *kve;
2161 PROC_LOCK_ASSERT(p, MA_OWNED);
2165 vm = vmspace_acquire_ref(p);
2170 kve = malloc(sizeof(*kve), M_TEMP, M_WAITOK);
2174 vm_map_lock_read(map);
2175 for (entry = map->header.next; entry != &map->header;
2176 entry = entry->next) {
2177 vm_object_t obj, tobj, lobj;
2179 vm_paddr_t locked_pa;
2182 if (entry->eflags & MAP_ENTRY_IS_SUB_MAP)
2185 bzero(kve, sizeof(*kve));
2187 kve->kve_private_resident = 0;
2188 obj = entry->object.vm_object;
2190 VM_OBJECT_RLOCK(obj);
2191 if (obj->shadow_count == 1)
2192 kve->kve_private_resident =
2193 obj->resident_page_count;
2195 kve->kve_resident = 0;
2196 addr = entry->start;
2197 while (addr < entry->end) {
2199 mincoreinfo = pmap_mincore(map->pmap, addr, &locked_pa);
2201 vm_page_unlock(PHYS_TO_VM_PAGE(locked_pa));
2202 if (mincoreinfo & MINCORE_INCORE)
2203 kve->kve_resident++;
2204 if (mincoreinfo & MINCORE_SUPER)
2205 kve->kve_flags |= KVME_FLAG_SUPER;
2209 for (lobj = tobj = obj; tobj; tobj = tobj->backing_object) {
2211 VM_OBJECT_RLOCK(tobj);
2213 VM_OBJECT_RUNLOCK(lobj);
2217 kve->kve_start = entry->start;
2218 kve->kve_end = entry->end;
2219 kve->kve_offset = entry->offset;
2221 if (entry->protection & VM_PROT_READ)
2222 kve->kve_protection |= KVME_PROT_READ;
2223 if (entry->protection & VM_PROT_WRITE)
2224 kve->kve_protection |= KVME_PROT_WRITE;
2225 if (entry->protection & VM_PROT_EXECUTE)
2226 kve->kve_protection |= KVME_PROT_EXEC;
2228 if (entry->eflags & MAP_ENTRY_COW)
2229 kve->kve_flags |= KVME_FLAG_COW;
2230 if (entry->eflags & MAP_ENTRY_NEEDS_COPY)
2231 kve->kve_flags |= KVME_FLAG_NEEDS_COPY;
2232 if (entry->eflags & MAP_ENTRY_NOCOREDUMP)
2233 kve->kve_flags |= KVME_FLAG_NOCOREDUMP;
2234 if (entry->eflags & MAP_ENTRY_GROWS_UP)
2235 kve->kve_flags |= KVME_FLAG_GROWS_UP;
2236 if (entry->eflags & MAP_ENTRY_GROWS_DOWN)
2237 kve->kve_flags |= KVME_FLAG_GROWS_DOWN;
2239 last_timestamp = map->timestamp;
2240 vm_map_unlock_read(map);
2246 switch (lobj->type) {
2248 kve->kve_type = KVME_TYPE_DEFAULT;
2251 kve->kve_type = KVME_TYPE_VNODE;
2256 kve->kve_type = KVME_TYPE_SWAP;
2259 kve->kve_type = KVME_TYPE_DEVICE;
2262 kve->kve_type = KVME_TYPE_PHYS;
2265 kve->kve_type = KVME_TYPE_DEAD;
2268 kve->kve_type = KVME_TYPE_SG;
2271 kve->kve_type = KVME_TYPE_UNKNOWN;
2275 VM_OBJECT_RUNLOCK(lobj);
2277 kve->kve_ref_count = obj->ref_count;
2278 kve->kve_shadow_count = obj->shadow_count;
2279 VM_OBJECT_RUNLOCK(obj);
2281 vn_fullpath(curthread, vp, &fullpath,
2283 kve->kve_vn_type = vntype_to_kinfo(vp->v_type);
2284 cred = curthread->td_ucred;
2285 vn_lock(vp, LK_SHARED | LK_RETRY);
2286 if (VOP_GETATTR(vp, &va, cred) == 0) {
2287 kve->kve_vn_fileid = va.va_fileid;
2288 kve->kve_vn_fsid = va.va_fsid;
2290 MAKEIMODE(va.va_type, va.va_mode);
2291 kve->kve_vn_size = va.va_size;
2292 kve->kve_vn_rdev = va.va_rdev;
2293 kve->kve_status = KF_ATTR_VALID;
2298 kve->kve_type = KVME_TYPE_NONE;
2299 kve->kve_ref_count = 0;
2300 kve->kve_shadow_count = 0;
2303 strlcpy(kve->kve_path, fullpath, sizeof(kve->kve_path));
2304 if (freepath != NULL)
2305 free(freepath, M_TEMP);
2307 /* Pack record size down */
2308 kve->kve_structsize = offsetof(struct kinfo_vmentry, kve_path) +
2309 strlen(kve->kve_path) + 1;
2310 kve->kve_structsize = roundup(kve->kve_structsize,
2312 error = sbuf_bcat(sb, kve, kve->kve_structsize);
2313 vm_map_lock_read(map);
2316 if (last_timestamp != map->timestamp) {
2317 vm_map_lookup_entry(map, addr - 1, &tmp_entry);
2321 vm_map_unlock_read(map);
2329 sysctl_kern_proc_vmmap(SYSCTL_HANDLER_ARGS)
2333 int error, error2, *name;
2336 sbuf_new_for_sysctl(&sb, NULL, sizeof(struct kinfo_vmentry), req);
2337 error = pget((pid_t)name[0], PGET_CANDEBUG | PGET_NOTWEXIT, &p);
2342 error = kern_proc_vmmap_out(p, &sb);
2343 error2 = sbuf_finish(&sb);
2345 return (error != 0 ? error : error2);
2348 #if defined(STACK) || defined(DDB)
2350 sysctl_kern_proc_kstack(SYSCTL_HANDLER_ARGS)
2352 struct kinfo_kstack *kkstp;
2353 int error, i, *name, numthreads;
2354 lwpid_t *lwpidarray;
2361 error = pget((pid_t)name[0], PGET_NOTINEXEC | PGET_WANTREAD, &p);
2365 kkstp = malloc(sizeof(*kkstp), M_TEMP, M_WAITOK);
2366 st = stack_create();
2372 if (numthreads < p->p_numthreads) {
2373 if (lwpidarray != NULL) {
2374 free(lwpidarray, M_TEMP);
2377 numthreads = p->p_numthreads;
2379 lwpidarray = malloc(sizeof(*lwpidarray) * numthreads, M_TEMP,
2387 * XXXRW: During the below loop, execve(2) and countless other sorts
2388 * of changes could have taken place. Should we check to see if the
2389 * vmspace has been replaced, or the like, in order to prevent
2390 * giving a snapshot that spans, say, execve(2), with some threads
2391 * before and some after? Among other things, the credentials could
2392 * have changed, in which case the right to extract debug info might
2393 * no longer be assured.
2395 FOREACH_THREAD_IN_PROC(p, td) {
2396 KASSERT(i < numthreads,
2397 ("sysctl_kern_proc_kstack: numthreads"));
2398 lwpidarray[i] = td->td_tid;
2402 for (i = 0; i < numthreads; i++) {
2403 td = thread_find(p, lwpidarray[i]);
2407 bzero(kkstp, sizeof(*kkstp));
2408 (void)sbuf_new(&sb, kkstp->kkst_trace,
2409 sizeof(kkstp->kkst_trace), SBUF_FIXEDLEN);
2411 kkstp->kkst_tid = td->td_tid;
2412 if (TD_IS_SWAPPED(td))
2413 kkstp->kkst_state = KKST_STATE_SWAPPED;
2414 else if (TD_IS_RUNNING(td))
2415 kkstp->kkst_state = KKST_STATE_RUNNING;
2417 kkstp->kkst_state = KKST_STATE_STACKOK;
2418 stack_save_td(st, td);
2422 stack_sbuf_print(&sb, st);
2425 error = SYSCTL_OUT(req, kkstp, sizeof(*kkstp));
2432 if (lwpidarray != NULL)
2433 free(lwpidarray, M_TEMP);
2435 free(kkstp, M_TEMP);
2441 * This sysctl allows a process to retrieve the full list of groups from
2442 * itself or another process.
2445 sysctl_kern_proc_groups(SYSCTL_HANDLER_ARGS)
2447 pid_t *pidp = (pid_t *)arg1;
2448 unsigned int arglen = arg2;
2455 if (*pidp == -1) { /* -1 means this process */
2456 p = req->td->td_proc;
2458 error = pget(*pidp, PGET_CANSEE, &p);
2463 cred = crhold(p->p_ucred);
2467 error = SYSCTL_OUT(req, cred->cr_groups,
2468 cred->cr_ngroups * sizeof(gid_t));
2474 * This sysctl allows a process to retrieve or/and set the resource limit for
2478 sysctl_kern_proc_rlimit(SYSCTL_HANDLER_ARGS)
2480 int *name = (int *)arg1;
2481 u_int namelen = arg2;
2490 which = (u_int)name[1];
2491 if (which >= RLIM_NLIMITS)
2494 if (req->newptr != NULL && req->newlen != sizeof(rlim))
2497 flags = PGET_HOLD | PGET_NOTWEXIT;
2498 if (req->newptr != NULL)
2499 flags |= PGET_CANDEBUG;
2501 flags |= PGET_CANSEE;
2502 error = pget((pid_t)name[0], flags, &p);
2509 if (req->oldptr != NULL) {
2511 lim_rlimit(p, which, &rlim);
2514 error = SYSCTL_OUT(req, &rlim, sizeof(rlim));
2521 if (req->newptr != NULL) {
2522 error = SYSCTL_IN(req, &rlim, sizeof(rlim));
2524 error = kern_proc_setrlimit(curthread, p, which, &rlim);
2533 * This sysctl allows a process to retrieve ps_strings structure location of
2537 sysctl_kern_proc_ps_strings(SYSCTL_HANDLER_ARGS)
2539 int *name = (int *)arg1;
2540 u_int namelen = arg2;
2542 vm_offset_t ps_strings;
2544 #ifdef COMPAT_FREEBSD32
2545 uint32_t ps_strings32;
2551 error = pget((pid_t)name[0], PGET_CANDEBUG, &p);
2554 #ifdef COMPAT_FREEBSD32
2555 if ((req->flags & SCTL_MASK32) != 0) {
2557 * We return 0 if the 32 bit emulation request is for a 64 bit
2560 ps_strings32 = SV_PROC_FLAG(p, SV_ILP32) != 0 ?
2561 PTROUT(p->p_sysent->sv_psstrings) : 0;
2563 error = SYSCTL_OUT(req, &ps_strings32, sizeof(ps_strings32));
2567 ps_strings = p->p_sysent->sv_psstrings;
2569 error = SYSCTL_OUT(req, &ps_strings, sizeof(ps_strings));
2574 * This sysctl allows a process to retrieve umask of another process.
2577 sysctl_kern_proc_umask(SYSCTL_HANDLER_ARGS)
2579 int *name = (int *)arg1;
2580 u_int namelen = arg2;
2588 error = pget((pid_t)name[0], PGET_WANTREAD, &p);
2592 FILEDESC_SLOCK(p->p_fd);
2593 fd_cmask = p->p_fd->fd_cmask;
2594 FILEDESC_SUNLOCK(p->p_fd);
2596 error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
2601 * This sysctl allows a process to set and retrieve binary osreldate of
2605 sysctl_kern_proc_osrel(SYSCTL_HANDLER_ARGS)
2607 int *name = (int *)arg1;
2608 u_int namelen = arg2;
2610 int flags, error, osrel;
2615 if (req->newptr != NULL && req->newlen != sizeof(osrel))
2618 flags = PGET_HOLD | PGET_NOTWEXIT;
2619 if (req->newptr != NULL)
2620 flags |= PGET_CANDEBUG;
2622 flags |= PGET_CANSEE;
2623 error = pget((pid_t)name[0], flags, &p);
2627 error = SYSCTL_OUT(req, &p->p_osrel, sizeof(p->p_osrel));
2631 if (req->newptr != NULL) {
2632 error = SYSCTL_IN(req, &osrel, sizeof(osrel));
2646 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD, 0, "Process table");
2648 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLFLAG_RD|CTLTYPE_STRUCT|
2649 CTLFLAG_MPSAFE, 0, 0, sysctl_kern_proc, "S,proc",
2650 "Return entire process table");
2652 static SYSCTL_NODE(_kern_proc, KERN_PROC_GID, gid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2653 sysctl_kern_proc, "Process table");
2655 static SYSCTL_NODE(_kern_proc, KERN_PROC_PGRP, pgrp, CTLFLAG_RD | CTLFLAG_MPSAFE,
2656 sysctl_kern_proc, "Process table");
2658 static SYSCTL_NODE(_kern_proc, KERN_PROC_RGID, rgid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2659 sysctl_kern_proc, "Process table");
2661 static SYSCTL_NODE(_kern_proc, KERN_PROC_SESSION, sid, CTLFLAG_RD |
2662 CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2664 static SYSCTL_NODE(_kern_proc, KERN_PROC_TTY, tty, CTLFLAG_RD | CTLFLAG_MPSAFE,
2665 sysctl_kern_proc, "Process table");
2667 static SYSCTL_NODE(_kern_proc, KERN_PROC_UID, uid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2668 sysctl_kern_proc, "Process table");
2670 static SYSCTL_NODE(_kern_proc, KERN_PROC_RUID, ruid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2671 sysctl_kern_proc, "Process table");
2673 static SYSCTL_NODE(_kern_proc, KERN_PROC_PID, pid, CTLFLAG_RD | CTLFLAG_MPSAFE,
2674 sysctl_kern_proc, "Process table");
2676 static SYSCTL_NODE(_kern_proc, KERN_PROC_PROC, proc, CTLFLAG_RD | CTLFLAG_MPSAFE,
2677 sysctl_kern_proc, "Return process table, no threads");
2679 static SYSCTL_NODE(_kern_proc, KERN_PROC_ARGS, args,
2680 CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
2681 sysctl_kern_proc_args, "Process argument list");
2683 static SYSCTL_NODE(_kern_proc, KERN_PROC_ENV, env, CTLFLAG_RD | CTLFLAG_MPSAFE,
2684 sysctl_kern_proc_env, "Process environment");
2686 static SYSCTL_NODE(_kern_proc, KERN_PROC_AUXV, auxv, CTLFLAG_RD |
2687 CTLFLAG_MPSAFE, sysctl_kern_proc_auxv, "Process ELF auxiliary vector");
2689 static SYSCTL_NODE(_kern_proc, KERN_PROC_PATHNAME, pathname, CTLFLAG_RD |
2690 CTLFLAG_MPSAFE, sysctl_kern_proc_pathname, "Process executable path");
2692 static SYSCTL_NODE(_kern_proc, KERN_PROC_SV_NAME, sv_name, CTLFLAG_RD |
2693 CTLFLAG_MPSAFE, sysctl_kern_proc_sv_name,
2694 "Process syscall vector name (ABI type)");
2696 static SYSCTL_NODE(_kern_proc, (KERN_PROC_GID | KERN_PROC_INC_THREAD), gid_td,
2697 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2699 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PGRP | KERN_PROC_INC_THREAD), pgrp_td,
2700 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2702 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RGID | KERN_PROC_INC_THREAD), rgid_td,
2703 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2705 static SYSCTL_NODE(_kern_proc, (KERN_PROC_SESSION | KERN_PROC_INC_THREAD),
2706 sid_td, CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2708 static SYSCTL_NODE(_kern_proc, (KERN_PROC_TTY | KERN_PROC_INC_THREAD), tty_td,
2709 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2711 static SYSCTL_NODE(_kern_proc, (KERN_PROC_UID | KERN_PROC_INC_THREAD), uid_td,
2712 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2714 static SYSCTL_NODE(_kern_proc, (KERN_PROC_RUID | KERN_PROC_INC_THREAD), ruid_td,
2715 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2717 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PID | KERN_PROC_INC_THREAD), pid_td,
2718 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc, "Process table");
2720 static SYSCTL_NODE(_kern_proc, (KERN_PROC_PROC | KERN_PROC_INC_THREAD), proc_td,
2721 CTLFLAG_RD | CTLFLAG_MPSAFE, sysctl_kern_proc,
2722 "Return process table, no threads");
2724 #ifdef COMPAT_FREEBSD7
2725 static SYSCTL_NODE(_kern_proc, KERN_PROC_OVMMAP, ovmmap, CTLFLAG_RD |
2726 CTLFLAG_MPSAFE, sysctl_kern_proc_ovmmap, "Old Process vm map entries");
2729 static SYSCTL_NODE(_kern_proc, KERN_PROC_VMMAP, vmmap, CTLFLAG_RD |
2730 CTLFLAG_MPSAFE, sysctl_kern_proc_vmmap, "Process vm map entries");
2732 #if defined(STACK) || defined(DDB)
2733 static SYSCTL_NODE(_kern_proc, KERN_PROC_KSTACK, kstack, CTLFLAG_RD |
2734 CTLFLAG_MPSAFE, sysctl_kern_proc_kstack, "Process kernel stacks");
2737 static SYSCTL_NODE(_kern_proc, KERN_PROC_GROUPS, groups, CTLFLAG_RD |
2738 CTLFLAG_MPSAFE, sysctl_kern_proc_groups, "Process groups");
2740 static SYSCTL_NODE(_kern_proc, KERN_PROC_RLIMIT, rlimit, CTLFLAG_RW |
2741 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_rlimit,
2742 "Process resource limits");
2744 static SYSCTL_NODE(_kern_proc, KERN_PROC_PS_STRINGS, ps_strings, CTLFLAG_RD |
2745 CTLFLAG_MPSAFE, sysctl_kern_proc_ps_strings,
2746 "Process ps_strings location");
2748 static SYSCTL_NODE(_kern_proc, KERN_PROC_UMASK, umask, CTLFLAG_RD |
2749 CTLFLAG_MPSAFE, sysctl_kern_proc_umask, "Process umask");
2751 static SYSCTL_NODE(_kern_proc, KERN_PROC_OSREL, osrel, CTLFLAG_RW |
2752 CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, sysctl_kern_proc_osrel,
2753 "Process binary osreldate");