Lines Matching +full:conf +full:- +full:pd
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
110 td->td_retval[0] = pid; in sys_fork()
111 td->td_retval[1] = 0; in sys_fork()
127 fr.fr_pd_flags = uap->flags; in sys_pdfork()
128 AUDIT_ARG_FFLAGS(uap->flags); in sys_pdfork()
136 td->td_retval[0] = pid; in sys_pdfork()
137 td->td_retval[1] = 0; in sys_pdfork()
138 error = copyout(&fd, uap->fdp, sizeof(fd)); in sys_pdfork()
155 td->td_retval[0] = pid; in sys_vfork()
156 td->td_retval[1] = 0; in sys_vfork()
167 /* Don't allow kernel-only flags. */ in sys_rfork()
168 if ((uap->flags & RFKERNELONLY) != 0) in sys_rfork()
171 if ((uap->flags & RFSPAWN) != 0 && uap->flags != RFSPAWN) in sys_rfork()
174 AUDIT_ARG_FFLAGS(uap->flags); in sys_rfork()
176 if ((uap->flags & RFSPAWN) != 0) { in sys_rfork()
180 fr.fr_flags = uap->flags; in sys_rfork()
185 td->td_retval[0] = pid; in sys_rfork()
186 td->td_retval[1] = 0; in sys_rfork()
217 if (error == 0 && req->newptr != NULL) { in sysctl_kern_randompid()
223 else if (pid < 0 || pid > pid_max - 100) in sysctl_kern_randompid()
225 randompid = pid_max - 100; in sysctl_kern_randompid()
250 * low-numbered pids.
279 if (result == -1) { in fork_findpid()
311 p1 = td->td_proc; in fork_norfproc()
318 if ((p1->p_flag & (P_HADTHREADS | P_SYSTEM)) == P_HADTHREADS && in fork_norfproc()
339 pdtmp = pdinit(td->td_proc->p_pd, false); in fork_norfproc()
343 p1->p_fd = fdtmp; in fork_norfproc()
344 p1->p_pd = pdtmp; in fork_norfproc()
356 if ((p1->p_flag & (P_HADTHREADS | P_SYSTEM)) == P_HADTHREADS && in fork_norfproc()
372 struct pwddesc *pd; in do_fork() local
375 p1 = td->td_proc; in do_fork()
378 bcopy(&p1->p_startcopy, &p2->p_startcopy, in do_fork()
380 pargs_hold(p2->p_args); in do_fork()
383 bzero(&p2->p_startzero, in do_fork()
387 prison_proc_hold(p2->p_ucred->cr_prison); in do_fork()
389 p2->p_state = PRS_NEW; /* protect against others */ in do_fork()
390 p2->p_pid = fork_findpid(fr->fr_flags); in do_fork()
391 AUDIT_ARG_PID(p2->p_pid); in do_fork()
392 TSFORK(p2->p_pid, p1->p_pid); in do_fork()
397 prison_proc_link(p2->p_ucred->cr_prison, p2); in do_fork()
400 sx_xlock(PIDHASHLOCK(p2->p_pid)); in do_fork()
401 LIST_INSERT_HEAD(PIDHASH(p2->p_pid), p2, p_hash); in do_fork()
402 sx_xunlock(PIDHASHLOCK(p2->p_pid)); in do_fork()
409 if (fr->fr_flags & RFSIGSHARE) in do_fork()
417 if (fr->fr_flags & RFCFDG) { in do_fork()
418 pd = pdinit(p1->p_pd, false); in do_fork()
421 } else if (fr->fr_flags & RFFDG) { in do_fork()
422 if (fr->fr_flags2 & FR2_SHARE_PATHS) in do_fork()
423 pd = pdshare(p1->p_pd); in do_fork()
425 pd = pdcopy(p1->p_pd); in do_fork()
426 fd = fdcopy(p1->p_fd); in do_fork()
429 if (fr->fr_flags2 & FR2_SHARE_PATHS) in do_fork()
430 pd = pdcopy(p1->p_pd); in do_fork()
432 pd = pdshare(p1->p_pd); in do_fork()
433 fd = fdshare(p1->p_fd); in do_fork()
434 if (p1->p_fdtol == NULL) in do_fork()
435 p1->p_fdtol = filedesc_to_leader_alloc(NULL, NULL, in do_fork()
436 p1->p_leader); in do_fork()
437 if ((fr->fr_flags & RFTHREAD) != 0) { in do_fork()
442 fdtol = filedesc_to_leader_share(p1->p_fdtol, p1->p_fd); in do_fork()
448 fdtol = filedesc_to_leader_alloc(p1->p_fdtol, in do_fork()
449 p1->p_fd, p2); in do_fork()
454 * Start by zeroing the section of proc that is zero-initialized, in do_fork()
461 bzero(&td2->td_startzero, in do_fork()
464 bcopy(&td->td_startcopy, &td2->td_startcopy, in do_fork()
467 bcopy(&p2->p_comm, &td2->td_name, sizeof(td2->td_name)); in do_fork()
468 td2->td_sigstk = td->td_sigstk; in do_fork()
469 td2->td_flags = TDF_INMEM; in do_fork()
470 td2->td_lend_user_pri = PRI_MAX; in do_fork()
473 td2->td_vnet = NULL; in do_fork()
474 td2->td_vnet_lpush = NULL; in do_fork()
486 if ((fr->fr_flags & RFPPWAIT) != 0) in do_fork()
491 * Duplicate sub-structures as needed. in do_fork()
494 p2->p_flag = P_INMEM; in do_fork()
495 p2->p_flag2 = p1->p_flag2 & (P2_ASLR_DISABLE | P2_ASLR_ENABLE | in do_fork()
501 p2->p_swtick = ticks; in do_fork()
502 if (p1->p_flag & P_PROFIL) in do_fork()
505 if (fr->fr_flags & RFSIGSHARE) { in do_fork()
506 p2->p_sigacts = sigacts_hold(p1->p_sigacts); in do_fork()
508 sigacts_copy(newsigacts, p1->p_sigacts); in do_fork()
509 p2->p_sigacts = newsigacts; in do_fork()
510 if ((fr->fr_flags2 & (FR2_DROPSIG_CAUGHT | FR2_KPROC)) != 0) { in do_fork()
511 mtx_lock(&p2->p_sigacts->ps_mtx); in do_fork()
512 if ((fr->fr_flags2 & FR2_DROPSIG_CAUGHT) != 0) in do_fork()
514 if ((fr->fr_flags2 & FR2_KPROC) != 0) in do_fork()
515 p2->p_sigacts->ps_flag |= PS_NOCLDWAIT; in do_fork()
516 mtx_unlock(&p2->p_sigacts->ps_mtx); in do_fork()
520 if (fr->fr_flags & RFTSIGZMB) in do_fork()
521 p2->p_sigparent = RFTSIGNUM(fr->fr_flags); in do_fork()
522 else if (fr->fr_flags & RFLINUXTHPN) in do_fork()
523 p2->p_sigparent = SIGUSR1; in do_fork()
525 p2->p_sigparent = SIGCHLD; in do_fork()
527 if ((fr->fr_flags2 & FR2_KPROC) != 0) { in do_fork()
528 p2->p_flag |= P_SYSTEM | P_KPROC; in do_fork()
529 td2->td_pflags |= TDP_KTHREAD; in do_fork()
532 p2->p_textvp = p1->p_textvp; in do_fork()
533 p2->p_textdvp = p1->p_textdvp; in do_fork()
534 p2->p_fd = fd; in do_fork()
535 p2->p_fdtol = fdtol; in do_fork()
536 p2->p_pd = pd; in do_fork()
538 if (p1->p_flag2 & P2_INHERIT_PROTECTED) { in do_fork()
539 p2->p_flag |= P_PROTECTED; in do_fork()
540 p2->p_flag2 |= P2_INHERIT_PROTECTED; in do_fork()
544 * p_limit is copy-on-write. Bump its refcount. in do_fork()
550 pstats_fork(p1->p_stats, p2->p_stats); in do_fork()
559 if (p2->p_textvp != NULL) in do_fork()
560 vrefact(p2->p_textvp); in do_fork()
561 if (p2->p_textdvp != NULL) in do_fork()
562 vrefact(p2->p_textdvp); in do_fork()
563 p2->p_binname = p1->p_binname == NULL ? NULL : in do_fork()
564 strdup(p1->p_binname, M_PARGS); in do_fork()
569 if ((fr->fr_flags & RFTHREAD) != 0) { in do_fork()
571 p2->p_peers = p1->p_peers; in do_fork()
572 p1->p_peers = p2; in do_fork()
573 p2->p_leader = p1->p_leader; in do_fork()
575 PROC_LOCK(p1->p_leader); in do_fork()
576 if ((p1->p_leader->p_flag & P_WEXIT) != 0) { in do_fork()
577 PROC_UNLOCK(p1->p_leader); in do_fork()
595 PROC_UNLOCK(p1->p_leader); in do_fork()
597 p2->p_peers = NULL; in do_fork()
598 p2->p_leader = p2; in do_fork()
602 PGRP_LOCK(p1->p_pgrp); in do_fork()
610 p2->p_flag |= p1->p_flag & P_SUGID; in do_fork()
611 td2->td_pflags |= (td->td_pflags & (TDP_ALTSTACK | TDP_SIGFASTBLOCK)); in do_fork()
612 SESS_LOCK(p1->p_session); in do_fork()
613 if (p1->p_session->s_ttyvp != NULL && p1->p_flag & P_CONTROLT) in do_fork()
614 p2->p_flag |= P_CONTROLT; in do_fork()
615 SESS_UNLOCK(p1->p_session); in do_fork()
616 if (fr->fr_flags & RFPPWAIT) in do_fork()
617 p2->p_flag |= P_PPWAIT; in do_fork()
619 p2->p_pgrp = p1->p_pgrp; in do_fork()
621 PGRP_UNLOCK(p1->p_pgrp); in do_fork()
622 LIST_INIT(&p2->p_children); in do_fork()
623 LIST_INIT(&p2->p_orphans); in do_fork()
625 callout_init_mtx(&p2->p_itcallout, &p2->p_mtx, 0); in do_fork()
641 if ((fr->fr_flags & RFNOWAIT) != 0) { in do_fork()
642 pptr = p1->p_reaper; in do_fork()
643 p2->p_reaper = pptr; in do_fork()
645 p2->p_reaper = (p1->p_treeflag & P_TREE_REAPER) != 0 ? in do_fork()
646 p1 : p1->p_reaper; in do_fork()
649 p2->p_pptr = pptr; in do_fork()
650 p2->p_oppid = pptr->p_pid; in do_fork()
651 LIST_INSERT_HEAD(&pptr->p_children, p2, p_sibling); in do_fork()
652 LIST_INIT(&p2->p_reaplist); in do_fork()
653 LIST_INSERT_HEAD(&p2->p_reaper->p_reaplist, p2, p_reapsibling); in do_fork()
654 if (p2->p_reaper == p1 && p1 != initproc) { in do_fork()
655 p2->p_reapsubtree = p2->p_pid; in do_fork()
656 proc_id_set_cond(PROC_ID_REAP, p2->p_pid); in do_fork()
661 p2->p_acflag = AFORK; in do_fork()
672 vm_forkproc(td, p2, td2, vm2, fr->fr_flags); in do_fork()
674 if (fr->fr_flags == (RFFDG | RFPROC)) { in do_fork()
676 VM_CNT_ADD(v_forkpages, p2->p_vmspace->vm_dsize + in do_fork()
677 p2->p_vmspace->vm_ssize); in do_fork()
678 } else if (fr->fr_flags == (RFFDG | RFPROC | RFPPWAIT | RFMEM)) { in do_fork()
680 VM_CNT_ADD(v_vforkpages, p2->p_vmspace->vm_dsize + in do_fork()
681 p2->p_vmspace->vm_ssize); in do_fork()
684 VM_CNT_ADD(v_kthreadpages, p2->p_vmspace->vm_dsize + in do_fork()
685 p2->p_vmspace->vm_ssize); in do_fork()
688 VM_CNT_ADD(v_rforkpages, p2->p_vmspace->vm_dsize + in do_fork()
689 p2->p_vmspace->vm_ssize); in do_fork()
697 if (fr->fr_flags & RFPROCDESC) in do_fork()
698 procdesc_new(p2, fr->fr_pd_flags); in do_fork()
704 EVENTHANDLER_DIRECT_INVOKE(process_fork, p1, p2, fr->fr_flags); in do_fork()
711 microuptime(&p2->p_stats->p_start); in do_fork()
713 p2->p_state = PRS_NORMAL; in do_fork()
723 if ((fr->fr_flags & RFMEM) == 0 && dtrace_fasttrap_fork) in do_fork()
726 if (fr->fr_flags & RFPPWAIT) { in do_fork()
727 td->td_pflags |= TDP_RFPPWAIT; in do_fork()
728 td->td_rfppwait_p = p2; in do_fork()
729 td->td_dbgflags |= TDB_VFORK; in do_fork()
736 knote_fork(p1->p_klist, p2->p_pid); in do_fork()
743 SDT_PROBE3(proc, , , create, p2, p1, fr->fr_flags); in do_fork()
745 if (fr->fr_flags & RFPROCDESC) { in do_fork()
746 procdesc_finit(p2->p_procdesc, fp_procdesc); in do_fork()
755 if ((p1->p_ptevents & PTRACE_FORK) != 0) { in do_fork()
760 * p1->p_ptevents & p1->p_pptr are protected by both in do_fork()
762 * so owning proctree_lock allows the race-free read. in do_fork()
764 if ((p1->p_ptevents & PTRACE_FORK) != 0) { in do_fork()
772 td->td_dbgflags |= TDB_FORK; in do_fork()
773 td->td_dbg_forked = p2->p_pid; in do_fork()
774 td2->td_dbgflags |= TDB_STOPATFORK; in do_fork()
778 p2->p_pid, p2->p_oppid); in do_fork()
779 proc_reparent(p2, p1->p_pptr, false); in do_fork()
787 if ((fr->fr_flags & RFSTOPPED) == 0) { in do_fork()
788 if (fr->fr_pidp != NULL) in do_fork()
789 *fr->fr_pidp = p2->p_pid; in do_fork()
798 *fr->fr_procp = p2; in do_fork()
807 MPASS(td->td_pflags & TDP_RFPPWAIT); in ast_vfork()
809 p = td->td_proc; in ast_vfork()
820 td->td_pflags &= ~TDP_RFPPWAIT; in ast_vfork()
821 p2 = td->td_rfppwait_p; in ast_vfork()
824 while (p2->p_flag & P_PPWAIT) { in ast_vfork()
834 cv_timedwait(&p2->p_pwait, &p2->p_mtx, hz); in ast_vfork()
838 if (td->td_dbgflags & TDB_VFORK) { in ast_vfork()
840 if (p->p_ptevents & PTRACE_VFORK) in ast_vfork()
842 td->td_dbgflags &= ~TDB_VFORK; in ast_vfork()
863 flags = fr->fr_flags; in fork1()
864 pages = fr->fr_pages; in fork1()
867 MPASS(fr->fr_procp != NULL && fr->fr_pidp == NULL); in fork1()
869 MPASS(fr->fr_procp == NULL); in fork1()
893 if (fr->fr_pd_fd == NULL) in fork1()
897 if ((fr->fr_pd_flags & ~PD_ALLOWED_AT_FORK) != 0) in fork1()
901 p1 = td->td_proc; in fork1()
908 if (fr->fr_procp != NULL) in fork1()
909 *fr->fr_procp = NULL; in fork1()
910 else if (fr->fr_pidp != NULL) in fork1()
911 *fr->fr_pidp = 0; in fork1()
925 * create. There are hard-limits as to the number of processes in fork1()
933 if (nprocs_new >= maxproc - 10) { in fork1()
934 if (priv_check_cred(td->td_ucred, PRIV_MAXPROC) != 0 || in fork1()
941 "login.conf(5)\n", in fork1()
942 td->td_ucred->cr_ruid, p1->p_pid); in fork1()
950 * If we are possibly multi-threaded, and there is a process in fork1()
956 pg = p1->p_pgrp; in fork1()
957 if (p1->p_numthreads > 1) { in fork1()
958 if (sx_try_slock(&pg->pg_killsx) != 0) { in fork1()
976 if (!killsx_locked && sx_slock_sig(&pg->pg_killsx) != 0) { in fork1()
980 if (__predict_false(p1->p_pgrp != pg || sig_intr() != 0)) { in fork1()
987 sx_sunlock(&pg->pg_killsx); in fork1()
1001 error = procdesc_falloc(td, &fp_procdesc, fr->fr_pd_fd, in fork1()
1002 fr->fr_pd_flags, fr->fr_pd_fcaps); in fork1()
1005 AUDIT_ARG_FD(*fr->fr_pd_fd); in fork1()
1028 vm2 = vmspace_fork(p1->p_vmspace, &mem_charged); in fork1()
1049 * per-cred resource counters. in fork1()
1051 newproc->p_ucred = crcowget(td->td_ucred); in fork1()
1065 newproc->p_klist = knlist_alloc(&newproc->p_mtx); in fork1()
1066 STAILQ_INIT(&newproc->p_ktr); in fork1()
1072 cred = td->td_ucred; in fork1()
1073 if (!chgproccnt(cred->cr_ruidinfo, 1, lim_cur(td, RLIMIT_NPROC))) { in fork1()
1076 chgproccnt(cred->cr_ruidinfo, 1, 0); in fork1()
1095 fdclose(td, fp_procdesc, *fr->fr_pd_fd); in fork1()
1098 atomic_add_int(&nprocs, -1); in fork1()
1101 sx_sunlock(&pg->pg_killsx); in fork1()
1127 p = td->td_proc; in fork_exit()
1128 KASSERT(p->p_state == PRS_NORMAL, ("executing process is still new")); in fork_exit()
1131 td, td_get_sched(td), p->p_pid, td->td_name); in fork_exit()
1148 * have this call a non-return function to stay in kernel mode. in fork_exit()
1158 if (p->p_flag & P_KPROC) { in fork_exit()
1160 td->td_name, p->p_pid); in fork_exit()
1169 if (p->p_sysent->sv_schedtail != NULL) in fork_exit()
1170 (p->p_sysent->sv_schedtail)(td); in fork_exit()
1186 p = td->td_proc; in fork_return()
1187 if (td->td_dbgflags & TDB_STOPATFORK) { in fork_return()
1189 if ((p->p_flag & P_TRACED) != 0) { in fork_return()
1193 td->td_dbgflags |= TDB_CHILD | TDB_SCX | TDB_FSTP; in fork_return()
1195 td->td_dbgflags &= ~(TDB_CHILD | TDB_SCX); in fork_return()
1200 td->td_dbgflags &= ~TDB_STOPATFORK; in fork_return()
1203 } else if (p->p_flag & P_TRACED) { in fork_return()
1209 td->td_dbgflags |= TDB_SCX; in fork_return()
1210 if ((p->p_ptevents & PTRACE_SCX) != 0 || in fork_return()
1211 (td->td_dbgflags & TDB_BORN) != 0) in fork_return()
1213 td->td_dbgflags &= ~(TDB_SCX | TDB_BORN); in fork_return()
1218 * If the prison was killed mid-fork, die along with it. in fork_return()
1220 if (!prison_isalive(td->td_ucred->cr_prison)) in fork_return()
1225 ktrsysret(td->td_sa.code, 0, 0); in fork_return()