/* $OpenBSD: kern_info_43.c,v 1.15 2003/08/15 20:32:15 tedu Exp $ */
/* $NetBSD: kern_info_43.c,v 1.5 1996/02/04 02:02:22 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1991, 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.
* 3. 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.
*
* @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/filedesc.h>
#include <sys/kernel.h>
#include <sys/vnode.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/malloc.h>
#include <sys/syslog.h>
#include <sys/unistd.h>
#include <sys/resourcevar.h>
#include <uvm/uvm_extern.h>
#include <sys/sysctl.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
int
compat_43_sys_getdtablesize(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
*retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles);
return (0);
}
/* ARGSUSED */
int
compat_43_sys_gethostid(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
*(int32_t *)retval = hostid;
return (0);
}
/*ARGSUSED*/
int
compat_43_sys_gethostname(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_gethostname_args /* {
syscallarg(char *) hostname;
syscallarg(u_int) len;
} */ *uap = v;
int name;
size_t sz;
name = KERN_HOSTNAME;
sz = SCARG(uap, len);
return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, p));
}
#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)
#define KINFO_BSDI_SYSINFO (101<<8)
/*
* The string data is appended to the end of the bsdi_si structure during
* copyout. The "char *" offsets in the bsdi_si struct are relative to the
* base of the bsdi_si struct.
*/
struct bsdi_si {
char *machine;
char *cpu_model;
long ncpu;
long cpuspeed;
long hwflags;
u_long physmem;
u_long usermem;
u_long pagesize;
char *ostype;
char *osrelease;
long os_revision;
long posix1_version;
char *version;
long hz;
long profhz;
int ngroups_max;
long arg_max;
long open_max;
long child_max;
struct timeval boottime;
char *hostname;
};
/* 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
*/
struct {
char *bsdi_machine; /* "i386" on BSD/386 */
char *pad0;
long pad1;
long pad2;
long pad3;
u_long pad4;
u_long pad5;
u_long pad6;
char *bsdi_ostype; /* "BSD/386" on BSD/386 */
char *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 */
char *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 "OpenBSD\01.2-BUILT-nnnnnn\0i386\0", and these strings
* should not exceed the length of the buffer here... (or else!! :-)
*/
char bsdi_strings[80]; /* It had better be less than this! */
int
compat_43_sys_getkerninfo(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
register struct compat_43_sys_getkerninfo_args /* {
syscallarg(int) op;
syscallarg(char *) where;
syscallarg(int *) size;
syscallarg(int) arg;
} */ *uap = v;
int error, name[5];
size_t size;
extern char machine[];
if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size),
(caddr_t)&size, sizeof(size))))
return (error);
switch (SCARG(uap, op) & 0xff00) {
case KINFO_RT:
name[0] = PF_ROUTE;
name[1] = 0;
name[2] = (SCARG(uap, op) & 0xff0000) >> 16;
name[3] = SCARG(uap, op) & 0xff;
name[4] = SCARG(uap, arg);
error =
net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_VNODE:
name[0] = KERN_VNODE;
error =
kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_PROC:
name[0] = KERN_PROC;
name[1] = SCARG(uap, op) & 0xff;
name[2] = SCARG(uap, arg);
error =
kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_FILE:
name[0] = KERN_FILE;
error =
kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_METER:
name[0] = VM_METER;
error =
uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_LOADAVG:
name[0] = VM_LOADAVG;
error =
uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_CLOCKRATE:
name[0] = KERN_CLOCKRATE;
error =
kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p);
break;
case KINFO_BSDI_SYSINFO: {
/*
* this is pretty crude, but it's just enough for uname()
* from BSDI's 1.x libc to work.
*/
u_int needed;
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 = ((char *)(s - bsdi_strings)) +
sizeof(bsdi_si);
strlcpy(s, ostype, bsdi_strings + sizeof bsdi_strings - s);
s += strlen(s) + 1;
bsdi_si.bsdi_osrelease = ((char *)(s - bsdi_strings)) +
sizeof(bsdi_si);
strlcpy(s, osrelease, bsdi_strings + sizeof bsdi_strings - s);
s += strlen(s) + 1;
bsdi_si.bsdi_machine = ((char *)(s - bsdi_strings)) +
sizeof(bsdi_si);
strlcpy(s, machine, bsdi_strings + sizeof bsdi_strings - s);
s += strlen(s) + 1;
needed = sizeof(bsdi_si) + (s - bsdi_strings);
if (SCARG(uap, where) == NULL) {
/* process is asking how much buffer to supply.. */
size = needed;
error = 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, SCARG(uap, where),
left)) != 0)
break;
/* is there any point in continuing? */
if (left > sizeof(bsdi_si))
left -= sizeof(bsdi_si);
else
break;
error = copyout(&bsdi_strings, SCARG(uap, where) +
sizeof(bsdi_si), left);
break;
}
default:
return (EOPNOTSUPP);
}
if (error)
return (error);
*retval = size;
if (SCARG(uap, size))
error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size),
sizeof(size));
return (error);
}
/* ARGSUSED */
int
compat_43_sys_sethostid(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_sethostid_args /* {
syscallarg(int32_t) hostid;
} */ *uap = v;
int error;
if ((error = suser(p, 0)) != 0)
return (error);
hostid = SCARG(uap, hostid);
return (0);
}
/* ARGSUSED */
int
compat_43_sys_sethostname(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_sethostname_args *uap = v;
int name;
int error;
if ((error = suser(p, 0)) != 0)
return (error);
name = KERN_HOSTNAME;
return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname),
SCARG(uap, len), p));
}
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