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https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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289 lines
6.8 KiB
C
289 lines
6.8 KiB
C
/*
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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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* 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_xxx.c 8.2 (Berkeley) 11/14/93
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* $Id: kern_xxx.c,v 1.11 1995/07/30 17:10:36 davidg Exp $
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*/
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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/proc.h>
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#include <sys/reboot.h>
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#include <vm/vm.h>
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#include <sys/sysctl.h>
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#include <sys/utsname.h>
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#include <sys/signalvar.h>
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#include <machine/md_var.h>
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/* This implements a "TEXT_SET" for cleanup functions */
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static void
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dummy_cleanup() {}
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TEXT_SET(cleanup_set, dummy_cleanup);
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typedef void (*cleanup_func_t)(void);
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extern const struct linker_set cleanup_set;
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static const cleanup_func_t *cleanups =
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(const cleanup_func_t *)&cleanup_set.ls_items[0];
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struct reboot_args {
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int opt;
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};
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/* ARGSUSED */
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int
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reboot(p, uap, retval)
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struct proc *p;
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struct reboot_args *uap;
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int *retval;
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{
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int error;
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if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
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if (!uap->opt & RB_NOSYNC) {
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printf("\ncleaning up... ");
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while(*cleanups) {
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(**cleanups++)();
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}
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}
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boot(uap->opt);
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return (0);
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}
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#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
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struct gethostname_args {
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char *hostname;
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u_int len;
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};
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/* ARGSUSED */
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int
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ogethostname(p, uap, retval)
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struct proc *p;
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struct gethostname_args *uap;
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int *retval;
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{
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int name;
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name = KERN_HOSTNAME;
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return (kern_sysctl(&name, 1, uap->hostname, &uap->len, 0, 0, p));
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}
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struct sethostname_args {
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char *hostname;
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u_int len;
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};
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/* ARGSUSED */
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int
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osethostname(p, uap, retval)
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struct proc *p;
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register struct sethostname_args *uap;
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int *retval;
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{
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int name;
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int error;
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if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
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name = KERN_HOSTNAME;
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return (kern_sysctl(&name, 1, 0, 0, uap->hostname, uap->len, p));
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}
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struct gethostid_args {
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int dummy;
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};
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/* ARGSUSED */
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int
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ogethostid(p, uap, retval)
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struct proc *p;
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struct gethostid_args *uap;
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int *retval;
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{
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*(long *)retval = hostid;
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return (0);
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}
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#endif /* COMPAT_43 || COMPAT_SUNOS */
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#ifdef COMPAT_43
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struct sethostid_args {
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long hostid;
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};
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/* ARGSUSED */
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int
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osethostid(p, uap, retval)
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struct proc *p;
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struct sethostid_args *uap;
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int *retval;
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{
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int error;
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if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
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hostid = uap->hostid;
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return (0);
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}
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int
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oquota()
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{
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return (ENOSYS);
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}
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#endif /* COMPAT_43 */
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void
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shutdown_nice(void)
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{
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register struct proc *p;
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/* Send a signal to init(8) and have it shutdown the world */
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if (initproc != NULL)
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psignal(initproc, SIGINT);
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else
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/* No init(8) running, simply reset the CPU */
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cpu_reset();
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return;
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}
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struct uname_args {
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struct utsname *name;
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};
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/* ARGSUSED */
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int
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uname(p, uap, retval)
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struct proc *p;
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struct uname_args *uap;
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int *retval;
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{
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int name;
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int len;
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int rtval;
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char *s, *us;
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name = KERN_OSTYPE;
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len = sizeof uap->name->sysname;
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rtval = kern_sysctl(&name, 1, uap->name->sysname, &len, 0, 0, p);
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if( rtval) return rtval;
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subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
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name = KERN_HOSTNAME;
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len = sizeof uap->name->nodename;
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rtval = kern_sysctl(&name, 1, uap->name->nodename, &len, 0, 0, p);
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if( rtval) return rtval;
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subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
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name = KERN_OSRELEASE;
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len = sizeof uap->name->release;
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rtval = kern_sysctl(&name, 1, uap->name->release, &len, 0, 0, p);
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if( rtval) return rtval;
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subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
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/*
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name = KERN_VERSION;
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len = sizeof uap->name->version;
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rtval = kern_sysctl(&name, 1, uap->name->version, &len, 0, 0, p);
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if( rtval) return rtval;
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subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
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*/
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/*
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* this stupid hackery to make the version field look like FreeBSD 1.1
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*/
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for(s = version; *s && *s != '#'; s++);
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for(us = uap->name->version; *s && *s != ':'; s++) {
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rtval = subyte( us++, *s);
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if( rtval)
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return rtval;
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}
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rtval = subyte( us++, 0);
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if( rtval)
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return rtval;
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name = HW_MACHINE;
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len = sizeof uap->name->machine;
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rtval = hw_sysctl(&name, 1, uap->name->machine, &len, 0, 0, p);
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if( rtval) return rtval;
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subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
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return 0;
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}
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struct getdomainname_args {
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char *domainname;
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u_int len;
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};
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/* ARGSUSED */
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int
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getdomainname(p, uap, retval)
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struct proc *p;
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struct getdomainname_args *uap;
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int *retval;
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{
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if (uap->len > domainnamelen + 1)
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uap->len = domainnamelen + 1;
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return (copyout((caddr_t)domainname, (caddr_t)uap->domainname, uap->len));
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}
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struct setdomainname_args {
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char *domainname;
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u_int len;
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};
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/* ARGSUSED */
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int
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setdomainname(p, uap, retval)
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struct proc *p;
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struct setdomainname_args *uap;
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int *retval;
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{
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int error;
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if ((error = suser(p->p_ucred, &p->p_acflag)))
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return (error);
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if (uap->len > sizeof (domainname) - 1)
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return EINVAL;
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domainnamelen = uap->len;
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error = copyin((caddr_t)uap->domainname, domainname, uap->len);
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domainname[domainnamelen] = 0;
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return (error);
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}
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