| Current Path : /sys/kern/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/kern/kern_xxx.c |
/*-
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/kern/kern_xxx.c 193066 2009-05-29 21:27:12Z jamie $");
#include "opt_compat.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/kernel.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/utsname.h>
#include <vm/vm_param.h>
#if defined(COMPAT_43)
#ifndef _SYS_SYSPROTO_H_
struct gethostname_args {
char *hostname;
u_int len;
};
#endif
/* ARGSUSED */
int
ogethostname(td, uap)
struct thread *td;
struct gethostname_args *uap;
{
int name[2];
size_t len = uap->len;
name[0] = CTL_KERN;
name[1] = KERN_HOSTNAME;
return (userland_sysctl(td, name, 2, uap->hostname, &len,
1, 0, 0, 0, 0));
}
#ifndef _SYS_SYSPROTO_H_
struct sethostname_args {
char *hostname;
u_int len;
};
#endif
/* ARGSUSED */
int
osethostname(td, uap)
struct thread *td;
register struct sethostname_args *uap;
{
int name[2];
name[0] = CTL_KERN;
name[1] = KERN_HOSTNAME;
return (userland_sysctl(td, name, 2, 0, 0, 0, uap->hostname,
uap->len, 0, 0));
}
#ifndef _SYS_SYSPROTO_H_
struct ogethostid_args {
int dummy;
};
#endif
/* ARGSUSED */
int
ogethostid(td, uap)
struct thread *td;
struct ogethostid_args *uap;
{
size_t len = sizeof(long);
int name[2];
name[0] = CTL_KERN;
name[1] = KERN_HOSTID;
return (kernel_sysctl(td, name, 2, (long *)td->td_retval, &len,
NULL, 0, NULL, 0));
}
#endif /* COMPAT_43 */
#ifdef COMPAT_43
#ifndef _SYS_SYSPROTO_H_
struct osethostid_args {
long hostid;
};
#endif
/* ARGSUSED */
int
osethostid(td, uap)
struct thread *td;
struct osethostid_args *uap;
{
int name[2];
name[0] = CTL_KERN;
name[1] = KERN_HOSTID;
return (kernel_sysctl(td, name, 2, NULL, NULL, &uap->hostid,
sizeof(uap->hostid), NULL, 0));
}
int
oquota(td, uap)
struct thread *td;
struct oquota_args *uap;
{
return (ENOSYS);
}
#define KINFO_PROC (0<<8)
#define KINFO_RT (1<<8)
#define KINFO_VNODE (2<<8)
#define KINFO_FILE (3<<8)
#define KINFO_METER (4<<8)
#define KINFO_LOADAVG (5<<8)
#define KINFO_CLOCKRATE (6<<8)
/* Non-standard BSDI extension - only present on their 4.3 net-2 releases */
#define KINFO_BSDI_SYSINFO (101<<8)
/*
* XXX this is bloat, but I hope it's better here than on the potentially
* limited kernel stack... -Peter
*/
static struct {
int bsdi_machine; /* "i386" on BSD/386 */
/* ^^^ this is an offset to the string, relative to the struct start */
char *pad0;
long pad1;
long pad2;
long pad3;
u_long pad4;
u_long pad5;
u_long pad6;
int bsdi_ostype; /* "BSD/386" on BSD/386 */
int bsdi_osrelease; /* "1.1" on BSD/386 */
long pad7;
long pad8;
char *pad9;
long pad10;
long pad11;
int pad12;
long pad13;
quad_t pad14;
long pad15;
struct timeval pad16;
/* we dont set this, because BSDI's uname used gethostname() instead */
int bsdi_hostname; /* hostname on BSD/386 */
/* the actual string data is appended here */
} bsdi_si;
/*
* this data is appended to the end of the bsdi_si structure during copyout.
* The "char *" offsets are relative to the base of the bsdi_si struct.
* This contains "FreeBSD\02.0-BUILT-nnnnnn\0i386\0", and these strings
* should not exceed the length of the buffer here... (or else!! :-)
*/
static char bsdi_strings[80]; /* It had better be less than this! */
#ifndef _SYS_SYSPROTO_H_
struct getkerninfo_args {
int op;
char *where;
size_t *size;
int arg;
};
#endif
int
ogetkerninfo(struct thread *td, struct getkerninfo_args *uap)
{
int error, name[6];
size_t size;
u_int needed = 0;
switch (uap->op & 0xff00) {
case KINFO_RT:
name[0] = CTL_NET;
name[1] = PF_ROUTE;
name[2] = 0;
name[3] = (uap->op & 0xff0000) >> 16;
name[4] = uap->op & 0xff;
name[5] = uap->arg;
error = userland_sysctl(td, name, 6, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_VNODE:
name[0] = CTL_KERN;
name[1] = KERN_VNODE;
error = userland_sysctl(td, name, 2, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_PROC:
name[0] = CTL_KERN;
name[1] = KERN_PROC;
name[2] = uap->op & 0xff;
name[3] = uap->arg;
error = userland_sysctl(td, name, 4, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_FILE:
name[0] = CTL_KERN;
name[1] = KERN_FILE;
error = userland_sysctl(td, name, 2, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_METER:
name[0] = CTL_VM;
name[1] = VM_TOTAL;
error = userland_sysctl(td, name, 2, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_LOADAVG:
name[0] = CTL_VM;
name[1] = VM_LOADAVG;
error = userland_sysctl(td, name, 2, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_CLOCKRATE:
name[0] = CTL_KERN;
name[1] = KERN_CLOCKRATE;
error = userland_sysctl(td, name, 2, uap->where, uap->size,
0, 0, 0, &size, 0);
break;
case KINFO_BSDI_SYSINFO: {
/*
* this is pretty crude, but it's just enough for uname()
* from BSDI's 1.x libc to work.
*
* *size gives the size of the buffer before the call, and
* the amount of data copied after a successful call.
* If successful, the return value is the amount of data
* available, which can be larger than *size.
*
* BSDI's 2.x product apparently fails with ENOMEM if *size
* is too small.
*/
u_int left;
char *s;
bzero((char *)&bsdi_si, sizeof(bsdi_si));
bzero(bsdi_strings, sizeof(bsdi_strings));
s = bsdi_strings;
bsdi_si.bsdi_ostype = (s - bsdi_strings) + sizeof(bsdi_si);
strcpy(s, ostype);
s += strlen(s) + 1;
bsdi_si.bsdi_osrelease = (s - bsdi_strings) + sizeof(bsdi_si);
strcpy(s, osrelease);
s += strlen(s) + 1;
bsdi_si.bsdi_machine = (s - bsdi_strings) + sizeof(bsdi_si);
strcpy(s, machine);
s += strlen(s) + 1;
needed = sizeof(bsdi_si) + (s - bsdi_strings);
if ((uap->where == NULL) || (uap->size == NULL)) {
/* process is asking how much buffer to supply.. */
size = needed;
error = 0;
break;
}
if ((error = copyin(uap->size, &size, sizeof(size))) != 0)
break;
/* if too much buffer supplied, trim it down */
if (size > needed)
size = needed;
/* how much of the buffer is remaining */
left = size;
if ((error = copyout((char *)&bsdi_si, uap->where, left)) != 0)
break;
/* is there any point in continuing? */
if (left > sizeof(bsdi_si)) {
left -= sizeof(bsdi_si);
error = copyout(&bsdi_strings,
uap->where + sizeof(bsdi_si), left);
}
break;
}
default:
error = EOPNOTSUPP;
break;
}
if (error == 0) {
td->td_retval[0] = needed ? needed : size;
if (uap->size) {
error = copyout(&size, uap->size, sizeof(size));
}
}
return (error);
}
#endif /* COMPAT_43 */
#ifdef COMPAT_FREEBSD4
/*
* This is the FreeBSD-1.1 compatible uname(2) interface. These days it is
* done in libc as a wrapper around a bunch of sysctl's. This must maintain
* the old 1.1 binary ABI.
*/
#if SYS_NMLN != 32
#error "FreeBSD-1.1 uname syscall has been broken"
#endif
#ifndef _SYS_SYSPROTO_H_
struct uname_args {
struct utsname *name;
};
#endif
/* ARGSUSED */
int
freebsd4_uname(struct thread *td, struct freebsd4_uname_args *uap)
{
int name[2], error;
size_t len;
char *s, *us;
name[0] = CTL_KERN;
name[1] = KERN_OSTYPE;
len = sizeof (uap->name->sysname);
error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
1, 0, 0, 0, 0);
if (error)
return (error);
subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
name[1] = KERN_HOSTNAME;
len = sizeof uap->name->nodename;
error = userland_sysctl(td, name, 2, uap->name->nodename, &len,
1, 0, 0, 0, 0);
if (error)
return (error);
subyte( uap->name->nodename + sizeof(uap->name->nodename) - 1, 0);
name[1] = KERN_OSRELEASE;
len = sizeof uap->name->release;
error = userland_sysctl(td, name, 2, uap->name->release, &len,
1, 0, 0, 0, 0);
if (error)
return (error);
subyte( uap->name->release + sizeof(uap->name->release) - 1, 0);
/*
name = KERN_VERSION;
len = sizeof uap->name->version;
error = userland_sysctl(td, name, 2, uap->name->version, &len,
1, 0, 0, 0, 0);
if (error)
return (error);
subyte( uap->name->version + sizeof(uap->name->version) - 1, 0);
*/
/*
* this stupid hackery to make the version field look like FreeBSD 1.1
*/
for(s = version; *s && *s != '#'; s++);
for(us = uap->name->version; *s && *s != ':'; s++) {
error = subyte( us++, *s);
if (error)
return (error);
}
error = subyte( us++, 0);
if (error)
return (error);
name[0] = CTL_HW;
name[1] = HW_MACHINE;
len = sizeof uap->name->machine;
error = userland_sysctl(td, name, 2, uap->name->machine, &len,
1, 0, 0, 0, 0);
if (error)
return (error);
subyte( uap->name->machine + sizeof(uap->name->machine) - 1, 0);
return (0);
}
#ifndef _SYS_SYSPROTO_H_
struct getdomainname_args {
char *domainname;
int len;
};
#endif
/* ARGSUSED */
int
freebsd4_getdomainname(struct thread *td,
struct freebsd4_getdomainname_args *uap)
{
int name[2];
size_t len = uap->len;
name[0] = CTL_KERN;
name[1] = KERN_NISDOMAINNAME;
return (userland_sysctl(td, name, 2, uap->domainname, &len,
1, 0, 0, 0, 0));
}
#ifndef _SYS_SYSPROTO_H_
struct setdomainname_args {
char *domainname;
int len;
};
#endif
/* ARGSUSED */
int
freebsd4_setdomainname(struct thread *td,
struct freebsd4_setdomainname_args *uap)
{
int name[2];
name[0] = CTL_KERN;
name[1] = KERN_NISDOMAINNAME;
return (userland_sysctl(td, name, 2, 0, 0, 0, uap->domainname,
uap->len, 0, 0));
}
#endif /* COMPAT_FREEBSD4 */