833 lines
20 KiB
C
833 lines
20 KiB
C
/* $NetBSD: kern_sysctl.c,v 1.44 1999/04/26 21:56:23 thorpej Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Mike Karels at Berkeley Software Design, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)kern_sysctl.c 8.9 (Berkeley) 5/20/95
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*/
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/*
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* sysctl system call.
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*/
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#include "opt_ddb.h"
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#include "opt_insecure.h"
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#include "opt_shortcorename.h"
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#include "opt_sysv.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/vnode.h>
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#include <sys/unistd.h>
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#include <sys/buf.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/disklabel.h>
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#include <sys/device.h>
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#include <vm/vm.h>
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#include <sys/sysctl.h>
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#include <sys/msgbuf.h>
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#include <uvm/uvm_extern.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#if defined(DDB)
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#include <ddb/ddbvar.h>
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#endif
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/*
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* Locking and stats
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*/
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static struct sysctl_lock {
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int sl_lock;
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int sl_want;
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int sl_locked;
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} memlock;
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int
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sys___sysctl(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct sys___sysctl_args /* {
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syscallarg(int *) name;
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syscallarg(u_int) namelen;
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syscallarg(void *) old;
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syscallarg(size_t *) oldlenp;
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syscallarg(void *) new;
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syscallarg(size_t) newlen;
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} */ *uap = v;
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int error, dolock = 1;
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size_t savelen = 0, oldlen = 0;
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sysctlfn *fn;
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int name[CTL_MAXNAME];
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if (SCARG(uap, new) != NULL &&
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(error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
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/*
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* all top-level sysctl names are non-terminal
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*/
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if (SCARG(uap, namelen) > CTL_MAXNAME || SCARG(uap, namelen) < 2)
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return (EINVAL);
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error = copyin(SCARG(uap, name), &name,
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SCARG(uap, namelen) * sizeof(int));
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if (error)
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return (error);
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switch (name[0]) {
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case CTL_KERN:
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fn = kern_sysctl;
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if (name[2] != KERN_VNODE) /* XXX */
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dolock = 0;
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break;
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case CTL_HW:
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fn = hw_sysctl;
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break;
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case CTL_VM:
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fn = uvm_sysctl;
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break;
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case CTL_NET:
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fn = net_sysctl;
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break;
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case CTL_VFS:
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fn = vfs_sysctl;
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break;
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case CTL_MACHDEP:
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fn = cpu_sysctl;
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break;
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#ifdef DEBUG
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case CTL_DEBUG:
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fn = debug_sysctl;
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break;
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#endif
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#ifdef DDB
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case CTL_DDB:
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fn = ddb_sysctl;
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break;
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#endif
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default:
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return (EOPNOTSUPP);
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}
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if (SCARG(uap, oldlenp) &&
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(error = copyin(SCARG(uap, oldlenp), &oldlen, sizeof(oldlen))))
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return (error);
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if (SCARG(uap, old) != NULL) {
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if (!uvm_useracc(SCARG(uap, old), oldlen, B_WRITE))
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return (EFAULT);
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while (memlock.sl_lock) {
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memlock.sl_want = 1;
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sleep((caddr_t)&memlock, PRIBIO+1);
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memlock.sl_locked++;
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}
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memlock.sl_lock = 1;
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if (dolock)
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uvm_vslock(p, SCARG(uap, old), oldlen);
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savelen = oldlen;
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}
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error = (*fn)(name + 1, SCARG(uap, namelen) - 1, SCARG(uap, old),
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&oldlen, SCARG(uap, new), SCARG(uap, newlen), p);
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if (SCARG(uap, old) != NULL) {
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if (dolock)
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uvm_vsunlock(p, SCARG(uap, old), savelen);
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memlock.sl_lock = 0;
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if (memlock.sl_want) {
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memlock.sl_want = 0;
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wakeup((caddr_t)&memlock);
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}
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}
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if (error)
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return (error);
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if (SCARG(uap, oldlenp))
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error = copyout(&oldlen, SCARG(uap, oldlenp), sizeof(oldlen));
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return (error);
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}
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/*
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* Attributes stored in the kernel.
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*/
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char hostname[MAXHOSTNAMELEN];
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int hostnamelen;
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char domainname[MAXHOSTNAMELEN];
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int domainnamelen;
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long hostid;
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#ifdef INSECURE
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int securelevel = -1;
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#else
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int securelevel = 0;
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#endif
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#ifdef SHORTCORENAME
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int shortcorename = 1;
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#else
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int shortcorename = 0;
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#endif
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/*
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* kernel related system variables.
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*/
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int
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kern_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
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int *name;
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u_int namelen;
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void *oldp;
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size_t *oldlenp;
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void *newp;
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size_t newlen;
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struct proc *p;
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{
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int error, level, inthostid;
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int old_autonicetime;
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int old_vnodes;
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int old_shortcorename;
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extern char ostype[], osrelease[], version[];
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/* All sysctl names at this level, except for a few, are terminal. */
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switch (name[0]) {
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case KERN_PROC:
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case KERN_PROF:
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case KERN_MBUF:
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/* Not terminal. */
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break;
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default:
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if (namelen != 1)
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return (ENOTDIR); /* overloaded */
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}
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switch (name[0]) {
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case KERN_OSTYPE:
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return (sysctl_rdstring(oldp, oldlenp, newp, ostype));
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case KERN_OSRELEASE:
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return (sysctl_rdstring(oldp, oldlenp, newp, osrelease));
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case KERN_OSREV:
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return (sysctl_rdint(oldp, oldlenp, newp, NetBSD));
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case KERN_VERSION:
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return (sysctl_rdstring(oldp, oldlenp, newp, version));
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case KERN_MAXVNODES:
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old_vnodes = desiredvnodes;
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error = sysctl_int(oldp, oldlenp, newp, newlen, &desiredvnodes);
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if (old_vnodes > desiredvnodes) {
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desiredvnodes = old_vnodes;
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return (EINVAL);
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}
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return (error);
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case KERN_MAXPROC:
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return (sysctl_int(oldp, oldlenp, newp, newlen, &maxproc));
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case KERN_MAXFILES:
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return (sysctl_int(oldp, oldlenp, newp, newlen, &maxfiles));
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case KERN_ARGMAX:
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return (sysctl_rdint(oldp, oldlenp, newp, ARG_MAX));
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case KERN_SECURELVL:
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level = securelevel;
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if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &level)) ||
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newp == NULL)
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return (error);
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if (level < securelevel && p->p_pid != 1)
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return (EPERM);
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securelevel = level;
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return (0);
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case KERN_HOSTNAME:
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error = sysctl_string(oldp, oldlenp, newp, newlen,
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hostname, sizeof(hostname));
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if (newp && !error)
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hostnamelen = newlen;
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return (error);
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case KERN_DOMAINNAME:
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error = sysctl_string(oldp, oldlenp, newp, newlen,
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domainname, sizeof(domainname));
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if (newp && !error)
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domainnamelen = newlen;
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return (error);
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case KERN_HOSTID:
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inthostid = hostid; /* XXX assumes sizeof long <= sizeof int */
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error = sysctl_int(oldp, oldlenp, newp, newlen, &inthostid);
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hostid = inthostid;
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return (error);
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case KERN_CLOCKRATE:
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return (sysctl_clockrate(oldp, oldlenp));
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case KERN_BOOTTIME:
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return (sysctl_rdstruct(oldp, oldlenp, newp, &boottime,
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sizeof(struct timeval)));
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case KERN_VNODE:
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return (sysctl_vnode(oldp, oldlenp, p));
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case KERN_PROC:
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return (sysctl_doproc(name + 1, namelen - 1, oldp, oldlenp));
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case KERN_FILE:
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return (sysctl_file(oldp, oldlenp));
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#ifdef GPROF
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case KERN_PROF:
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return (sysctl_doprof(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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#endif
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case KERN_POSIX1:
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return (sysctl_rdint(oldp, oldlenp, newp, _POSIX_VERSION));
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case KERN_NGROUPS:
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return (sysctl_rdint(oldp, oldlenp, newp, NGROUPS_MAX));
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case KERN_JOB_CONTROL:
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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case KERN_SAVED_IDS:
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#ifdef _POSIX_SAVED_IDS
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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#else
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return (sysctl_rdint(oldp, oldlenp, newp, 0));
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#endif
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case KERN_MAXPARTITIONS:
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return (sysctl_rdint(oldp, oldlenp, newp, MAXPARTITIONS));
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case KERN_RAWPARTITION:
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return (sysctl_rdint(oldp, oldlenp, newp, RAW_PART));
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#ifdef NTP
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case KERN_NTPTIME:
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return (sysctl_ntptime(oldp, oldlenp));
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#endif
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case KERN_AUTONICETIME:
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old_autonicetime = autonicetime;
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error = sysctl_int(oldp, oldlenp, newp, newlen, &autonicetime);
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if (autonicetime < 0)
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autonicetime = old_autonicetime;
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return (error);
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case KERN_AUTONICEVAL:
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error = sysctl_int(oldp, oldlenp, newp, newlen, &autoniceval);
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if (autoniceval < PRIO_MIN)
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autoniceval = PRIO_MIN;
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if (autoniceval > PRIO_MAX)
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autoniceval = PRIO_MAX;
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return (error);
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case KERN_RTC_OFFSET:
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return (sysctl_rdint(oldp, oldlenp, newp, rtc_offset));
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case KERN_ROOT_DEVICE:
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return (sysctl_rdstring(oldp, oldlenp, newp,
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root_device->dv_xname));
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case KERN_MSGBUFSIZE:
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/*
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* deal with cases where the message buffer has
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* become corrupted.
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*/
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if (!msgbufenabled || msgbufp->msg_magic != MSG_MAGIC) {
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msgbufenabled = 0;
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return (ENXIO);
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}
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return (sysctl_rdint(oldp, oldlenp, newp, msgbufp->msg_bufs));
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case KERN_FSYNC:
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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case KERN_SYSVMSG:
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#ifdef SYSVMSG
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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#else
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return (sysctl_rdint(oldp, oldlenp, newp, 0));
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#endif
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case KERN_SYSVSEM:
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#ifdef SYSVSEM
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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#else
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return (sysctl_rdint(oldp, oldlenp, newp, 0));
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#endif
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case KERN_SYSVSHM:
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#ifdef SYSVSHM
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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#else
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return (sysctl_rdint(oldp, oldlenp, newp, 0));
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#endif
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case KERN_SHORTCORENAME:
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/* Only allow values of zero or one. */
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old_shortcorename = shortcorename;
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error = sysctl_int(oldp, oldlenp, newp, newlen,
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&shortcorename);
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if (shortcorename != 0 && shortcorename != 1) {
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shortcorename = old_shortcorename;
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return (EINVAL);
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}
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return (error);
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case KERN_SYNCHRONIZED_IO:
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return (sysctl_rdint(oldp, oldlenp, newp, 1));
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case KERN_IOV_MAX:
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return (sysctl_rdint(oldp, oldlenp, newp, IOV_MAX));
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case KERN_MBUF:
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return (sysctl_dombuf(name + 1, namelen - 1, oldp, oldlenp,
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newp, newlen));
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default:
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return (EOPNOTSUPP);
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}
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/* NOTREACHED */
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}
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/*
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* hardware related system variables.
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*/
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int
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hw_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
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int *name;
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u_int namelen;
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void *oldp;
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size_t *oldlenp;
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void *newp;
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size_t newlen;
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struct proc *p;
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{
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extern char machine[], machine_arch[], cpu_model[];
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/* all sysctl names at this level are terminal */
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if (namelen != 1)
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return (ENOTDIR); /* overloaded */
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switch (name[0]) {
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case HW_MACHINE:
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return (sysctl_rdstring(oldp, oldlenp, newp, machine));
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case HW_MACHINE_ARCH:
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return (sysctl_rdstring(oldp, oldlenp, newp, machine_arch));
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case HW_MODEL:
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return (sysctl_rdstring(oldp, oldlenp, newp, cpu_model));
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case HW_NCPU:
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return (sysctl_rdint(oldp, oldlenp, newp, 1)); /* XXX */
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case HW_BYTEORDER:
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return (sysctl_rdint(oldp, oldlenp, newp, BYTE_ORDER));
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case HW_PHYSMEM:
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return (sysctl_rdint(oldp, oldlenp, newp, ctob(physmem)));
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case HW_USERMEM:
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return (sysctl_rdint(oldp, oldlenp, newp,
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ctob(physmem - uvmexp.wired)));
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case HW_PAGESIZE:
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return (sysctl_rdint(oldp, oldlenp, newp, PAGE_SIZE));
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default:
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return (EOPNOTSUPP);
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}
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/* NOTREACHED */
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}
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#ifdef DEBUG
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/*
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* Debugging related system variables.
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*/
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struct ctldebug debug0, debug1, debug2, debug3, debug4;
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struct ctldebug debug5, debug6, debug7, debug8, debug9;
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struct ctldebug debug10, debug11, debug12, debug13, debug14;
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struct ctldebug debug15, debug16, debug17, debug18, debug19;
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static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = {
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&debug0, &debug1, &debug2, &debug3, &debug4,
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&debug5, &debug6, &debug7, &debug8, &debug9,
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&debug10, &debug11, &debug12, &debug13, &debug14,
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&debug15, &debug16, &debug17, &debug18, &debug19,
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};
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int
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debug_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
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int *name;
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u_int namelen;
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void *oldp;
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size_t *oldlenp;
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void *newp;
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size_t newlen;
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struct proc *p;
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{
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struct ctldebug *cdp;
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/* all sysctl names at this level are name and field */
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if (namelen != 2)
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return (ENOTDIR); /* overloaded */
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cdp = debugvars[name[0]];
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if (name[0] >= CTL_DEBUG_MAXID || cdp->debugname == 0)
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return (EOPNOTSUPP);
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switch (name[1]) {
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case CTL_DEBUG_NAME:
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return (sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname));
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case CTL_DEBUG_VALUE:
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return (sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar));
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default:
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return (EOPNOTSUPP);
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}
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/* NOTREACHED */
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}
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#endif /* DEBUG */
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/*
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* Validate parameters and get old / set new parameters
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* for an integer-valued sysctl function.
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*/
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int
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sysctl_int(oldp, oldlenp, newp, newlen, valp)
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|
void *oldp;
|
|
size_t *oldlenp;
|
|
void *newp;
|
|
size_t newlen;
|
|
int *valp;
|
|
{
|
|
int error = 0;
|
|
|
|
if (oldp && *oldlenp < sizeof(int))
|
|
return (ENOMEM);
|
|
if (newp && newlen != sizeof(int))
|
|
return (EINVAL);
|
|
*oldlenp = sizeof(int);
|
|
if (oldp)
|
|
error = copyout(valp, oldp, sizeof(int));
|
|
if (error == 0 && newp)
|
|
error = copyin(newp, valp, sizeof(int));
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* As above, but read-only.
|
|
*/
|
|
int
|
|
sysctl_rdint(oldp, oldlenp, newp, val)
|
|
void *oldp;
|
|
size_t *oldlenp;
|
|
void *newp;
|
|
int val;
|
|
{
|
|
int error = 0;
|
|
|
|
if (oldp && *oldlenp < sizeof(int))
|
|
return (ENOMEM);
|
|
if (newp)
|
|
return (EPERM);
|
|
*oldlenp = sizeof(int);
|
|
if (oldp)
|
|
error = copyout((caddr_t)&val, oldp, sizeof(int));
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Validate parameters and get old / set new parameters
|
|
* for a string-valued sysctl function.
|
|
*/
|
|
int
|
|
sysctl_string(oldp, oldlenp, newp, newlen, str, maxlen)
|
|
void *oldp;
|
|
size_t *oldlenp;
|
|
void *newp;
|
|
size_t newlen;
|
|
char *str;
|
|
int maxlen;
|
|
{
|
|
int len, error = 0;
|
|
|
|
len = strlen(str) + 1;
|
|
if (oldp && *oldlenp < len)
|
|
return (ENOMEM);
|
|
if (newp && newlen >= maxlen)
|
|
return (EINVAL);
|
|
if (oldp) {
|
|
*oldlenp = len;
|
|
error = copyout(str, oldp, len);
|
|
}
|
|
if (error == 0 && newp) {
|
|
error = copyin(newp, str, newlen);
|
|
str[newlen] = 0;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* As above, but read-only.
|
|
*/
|
|
int
|
|
sysctl_rdstring(oldp, oldlenp, newp, str)
|
|
void *oldp;
|
|
size_t *oldlenp;
|
|
void *newp;
|
|
char *str;
|
|
{
|
|
int len, error = 0;
|
|
|
|
len = strlen(str) + 1;
|
|
if (oldp && *oldlenp < len)
|
|
return (ENOMEM);
|
|
if (newp)
|
|
return (EPERM);
|
|
*oldlenp = len;
|
|
if (oldp)
|
|
error = copyout(str, oldp, len);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Validate parameters and get old / set new parameters
|
|
* for a structure oriented sysctl function.
|
|
*/
|
|
int
|
|
sysctl_struct(oldp, oldlenp, newp, newlen, sp, len)
|
|
void *oldp;
|
|
size_t *oldlenp;
|
|
void *newp;
|
|
size_t newlen;
|
|
void *sp;
|
|
int len;
|
|
{
|
|
int error = 0;
|
|
|
|
if (oldp && *oldlenp < len)
|
|
return (ENOMEM);
|
|
if (newp && newlen > len)
|
|
return (EINVAL);
|
|
if (oldp) {
|
|
*oldlenp = len;
|
|
error = copyout(sp, oldp, len);
|
|
}
|
|
if (error == 0 && newp)
|
|
error = copyin(newp, sp, len);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Validate parameters and get old parameters
|
|
* for a structure oriented sysctl function.
|
|
*/
|
|
int
|
|
sysctl_rdstruct(oldp, oldlenp, newp, sp, len)
|
|
void *oldp;
|
|
size_t *oldlenp;
|
|
void *newp, *sp;
|
|
int len;
|
|
{
|
|
int error = 0;
|
|
|
|
if (oldp && *oldlenp < len)
|
|
return (ENOMEM);
|
|
if (newp)
|
|
return (EPERM);
|
|
*oldlenp = len;
|
|
if (oldp)
|
|
error = copyout(sp, oldp, len);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Get file structures.
|
|
*/
|
|
int
|
|
sysctl_file(where, sizep)
|
|
char *where;
|
|
size_t *sizep;
|
|
{
|
|
int buflen, error;
|
|
struct file *fp;
|
|
char *start = where;
|
|
|
|
buflen = *sizep;
|
|
if (where == NULL) {
|
|
/*
|
|
* overestimate by 10 files
|
|
*/
|
|
*sizep = sizeof(filehead) + (nfiles + 10) * sizeof(struct file);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* first copyout filehead
|
|
*/
|
|
if (buflen < sizeof(filehead)) {
|
|
*sizep = 0;
|
|
return (0);
|
|
}
|
|
error = copyout((caddr_t)&filehead, where, sizeof(filehead));
|
|
if (error)
|
|
return (error);
|
|
buflen -= sizeof(filehead);
|
|
where += sizeof(filehead);
|
|
|
|
/*
|
|
* followed by an array of file structures
|
|
*/
|
|
for (fp = filehead.lh_first; fp != 0; fp = fp->f_list.le_next) {
|
|
if (buflen < sizeof(struct file)) {
|
|
*sizep = where - start;
|
|
return (ENOMEM);
|
|
}
|
|
error = copyout((caddr_t)fp, where, sizeof(struct file));
|
|
if (error)
|
|
return (error);
|
|
buflen -= sizeof(struct file);
|
|
where += sizeof(struct file);
|
|
}
|
|
*sizep = where - start;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* try over estimating by 5 procs
|
|
*/
|
|
#define KERN_PROCSLOP (5 * sizeof(struct kinfo_proc))
|
|
|
|
int
|
|
sysctl_doproc(name, namelen, where, sizep)
|
|
int *name;
|
|
u_int namelen;
|
|
char *where;
|
|
size_t *sizep;
|
|
{
|
|
register struct proc *p;
|
|
register struct kinfo_proc *dp = (struct kinfo_proc *)where;
|
|
register int needed = 0;
|
|
int buflen = where != NULL ? *sizep : 0;
|
|
const struct proclist_desc *pd;
|
|
struct eproc eproc;
|
|
int error = 0;
|
|
|
|
if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL))
|
|
return (EINVAL);
|
|
|
|
pd = proclists;
|
|
again:
|
|
for (p = LIST_FIRST(pd->pd_list); p != NULL;
|
|
p = LIST_NEXT(p, p_list)) {
|
|
/*
|
|
* Skip embryonic processes.
|
|
*/
|
|
if (p->p_stat == SIDL)
|
|
continue;
|
|
/*
|
|
* TODO - make more efficient (see notes below).
|
|
* do by session.
|
|
*/
|
|
switch (name[0]) {
|
|
|
|
case KERN_PROC_PID:
|
|
/* could do this with just a lookup */
|
|
if (p->p_pid != (pid_t)name[1])
|
|
continue;
|
|
break;
|
|
|
|
case KERN_PROC_PGRP:
|
|
/* could do this by traversing pgrp */
|
|
if (p->p_pgrp->pg_id != (pid_t)name[1])
|
|
continue;
|
|
break;
|
|
|
|
case KERN_PROC_TTY:
|
|
if ((p->p_flag & P_CONTROLT) == 0 ||
|
|
p->p_session->s_ttyp == NULL ||
|
|
p->p_session->s_ttyp->t_dev != (dev_t)name[1])
|
|
continue;
|
|
break;
|
|
|
|
case KERN_PROC_UID:
|
|
if (p->p_ucred->cr_uid != (uid_t)name[1])
|
|
continue;
|
|
break;
|
|
|
|
case KERN_PROC_RUID:
|
|
if (p->p_cred->p_ruid != (uid_t)name[1])
|
|
continue;
|
|
break;
|
|
}
|
|
if (buflen >= sizeof(struct kinfo_proc)) {
|
|
fill_eproc(p, &eproc);
|
|
error = copyout((caddr_t)p, &dp->kp_proc,
|
|
sizeof(struct proc));
|
|
if (error)
|
|
return (error);
|
|
error = copyout((caddr_t)&eproc, &dp->kp_eproc,
|
|
sizeof(eproc));
|
|
if (error)
|
|
return (error);
|
|
dp++;
|
|
buflen -= sizeof(struct kinfo_proc);
|
|
}
|
|
needed += sizeof(struct kinfo_proc);
|
|
}
|
|
pd++;
|
|
if (pd->pd_list != NULL)
|
|
goto again;
|
|
|
|
if (where != NULL) {
|
|
*sizep = (caddr_t)dp - where;
|
|
if (needed > *sizep)
|
|
return (ENOMEM);
|
|
} else {
|
|
needed += KERN_PROCSLOP;
|
|
*sizep = needed;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Fill in an eproc structure for the specified process.
|
|
*/
|
|
void
|
|
fill_eproc(p, ep)
|
|
register struct proc *p;
|
|
register struct eproc *ep;
|
|
{
|
|
register struct tty *tp;
|
|
|
|
ep->e_paddr = p;
|
|
ep->e_sess = p->p_pgrp->pg_session;
|
|
ep->e_pcred = *p->p_cred;
|
|
ep->e_ucred = *p->p_ucred;
|
|
if (p->p_stat == SIDL || p->p_stat == SZOMB) {
|
|
ep->e_vm.vm_rssize = 0;
|
|
ep->e_vm.vm_tsize = 0;
|
|
ep->e_vm.vm_dsize = 0;
|
|
ep->e_vm.vm_ssize = 0;
|
|
/* ep->e_vm.vm_pmap = XXX; */
|
|
} else {
|
|
register struct vmspace *vm = p->p_vmspace;
|
|
|
|
ep->e_vm.vm_rssize = vm_resident_count(vm);
|
|
ep->e_vm.vm_tsize = vm->vm_tsize;
|
|
ep->e_vm.vm_dsize = vm->vm_dsize;
|
|
ep->e_vm.vm_ssize = vm->vm_ssize;
|
|
}
|
|
if (p->p_pptr)
|
|
ep->e_ppid = p->p_pptr->p_pid;
|
|
else
|
|
ep->e_ppid = 0;
|
|
ep->e_pgid = p->p_pgrp->pg_id;
|
|
ep->e_sid = ep->e_sess->s_sid;
|
|
ep->e_jobc = p->p_pgrp->pg_jobc;
|
|
if ((p->p_flag & P_CONTROLT) &&
|
|
(tp = ep->e_sess->s_ttyp)) {
|
|
ep->e_tdev = tp->t_dev;
|
|
ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID;
|
|
ep->e_tsess = tp->t_session;
|
|
} else
|
|
ep->e_tdev = NODEV;
|
|
if (p->p_wmesg)
|
|
strncpy(ep->e_wmesg, p->p_wmesg, WMESGLEN);
|
|
ep->e_xsize = ep->e_xrssize = 0;
|
|
ep->e_xccount = ep->e_xswrss = 0;
|
|
ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0;
|
|
if (SESS_LEADER(p))
|
|
ep->e_flag |= EPROC_SLEADER;
|
|
strncpy(ep->e_login, ep->e_sess->s_login, MAXLOGNAME);
|
|
}
|