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b40ce4165d
Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
315 lines
6.9 KiB
C
315 lines
6.9 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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* $FreeBSD$
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*/
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#include "opt_compat.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysproto.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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#include <sys/utsname.h>
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#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
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#ifndef _SYS_SYSPROTO_H_
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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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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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ogethostname(td, uap)
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struct thread *td;
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struct gethostname_args *uap;
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{
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int name[2];
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int error;
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size_t len = uap->len;
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name[0] = CTL_KERN;
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name[1] = KERN_HOSTNAME;
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mtx_lock(&Giant);
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error = userland_sysctl(td, name, 2, uap->hostname, &len, 1, 0, 0, 0);
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mtx_unlock(&Giant);
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return(error);
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}
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#ifndef _SYS_SYSPROTO_H_
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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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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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osethostname(td, uap)
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struct thread *td;
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register struct sethostname_args *uap;
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{
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int name[2];
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int error;
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name[0] = CTL_KERN;
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name[1] = KERN_HOSTNAME;
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mtx_lock(&Giant);
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if ((error = suser_xxx(0, td->td_proc, PRISON_ROOT)) == 0) {
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error = userland_sysctl(td, name, 2, 0, 0, 0,
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uap->hostname, uap->len, 0);
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}
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mtx_unlock(&Giant);
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return (error);
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}
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#ifndef _SYS_SYSPROTO_H_
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struct ogethostid_args {
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int dummy;
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};
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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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ogethostid(td, uap)
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struct thread *td;
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struct ogethostid_args *uap;
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{
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*(long *)(td->td_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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#ifndef _SYS_SYSPROTO_H_
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struct osethostid_args {
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long hostid;
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};
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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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osethostid(td, uap)
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struct thread *td;
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struct osethostid_args *uap;
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{
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int error;
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mtx_lock(&Giant);
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if ((error = suser_td(td)))
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hostid = uap->hostid;
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mtx_unlock(&Giant);
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return (error);
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}
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/*
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* MPSAFE
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*/
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int
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oquota(td, uap)
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struct thread *td;
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struct oquota_args *uap;
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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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/*
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* This is the FreeBSD-1.1 compatable uname(2) interface. These
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* days it is done in libc as a wrapper around a bunch of sysctl's.
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* This must maintain the old 1.1 binary ABI.
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*/
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#if SYS_NMLN != 32
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#error "FreeBSD-1.1 uname syscall has been broken"
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#endif
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#ifndef _SYS_SYSPROTO_H_
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struct uname_args {
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struct utsname *name;
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};
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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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uname(td, uap)
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struct thread *td;
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struct uname_args *uap;
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{
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int name[2], error;
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size_t len;
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char *s, *us;
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name[0] = CTL_KERN;
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name[1] = KERN_OSTYPE;
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len = sizeof (uap->name->sysname);
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mtx_lock(&Giant);
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error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
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1, 0, 0, 0);
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if (error)
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goto done2;
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subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
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name[1] = KERN_HOSTNAME;
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len = sizeof uap->name->nodename;
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error = userland_sysctl(td, name, 2, uap->name->nodename, &len,
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1, 0, 0, 0);
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if (error)
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goto done2;
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subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
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name[1] = KERN_OSRELEASE;
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len = sizeof uap->name->release;
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error = userland_sysctl(td, name, 2, uap->name->release, &len,
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1, 0, 0, 0);
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if (error)
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goto done2;
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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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error = userland_sysctl(td, name, 2, uap->name->version, &len,
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1, 0, 0, 0);
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if (error)
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goto done2;
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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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error = subyte( us++, *s);
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if (error)
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goto done2;
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}
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error = subyte( us++, 0);
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if (error)
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goto done2;
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name[0] = CTL_HW;
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name[1] = HW_MACHINE;
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len = sizeof uap->name->machine;
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error = userland_sysctl(td, name, 2, uap->name->machine, &len,
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1, 0, 0, 0);
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if (error)
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goto done2;
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subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
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done2:
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mtx_unlock(&Giant);
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return (error);
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}
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#ifndef _SYS_SYSPROTO_H_
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struct getdomainname_args {
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char *domainname;
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int len;
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};
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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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getdomainname(td, uap)
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struct thread *td;
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struct getdomainname_args *uap;
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{
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int domainnamelen;
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int error;
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mtx_lock(&Giant);
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domainnamelen = strlen(domainname) + 1;
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if ((u_int)uap->len > domainnamelen + 1)
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uap->len = domainnamelen + 1;
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error = copyout((caddr_t)domainname, (caddr_t)uap->domainname, uap->len);
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mtx_unlock(&Giant);
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return (error);
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}
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#ifndef _SYS_SYSPROTO_H_
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struct setdomainname_args {
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char *domainname;
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int len;
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};
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#endif
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/*
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* MPSAFE
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*/
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/* ARGSUSED */
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int
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setdomainname(td, uap)
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struct thread *td;
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struct setdomainname_args *uap;
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{
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int error, domainnamelen;
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mtx_lock(&Giant);
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if ((error = suser_td(td)))
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goto done2;
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if ((u_int)uap->len > sizeof (domainname) - 1) {
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error = EINVAL;
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goto done2;
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}
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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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done2:
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mtx_unlock(&Giant);
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return (error);
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}
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