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NetBSD/sys/compat/common/kern_info_43.c

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/* $NetBSD: kern_info_43.c,v 1.34 2009/01/11 02:45:46 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_info_43.c,v 1.34 2009/01/11 02:45:46 christos Exp $");
#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/syslog.h>
#include <sys/unistd.h>
#include <sys/resourcevar.h>
#include <sys/kauth.h>
#include <uvm/uvm_extern.h>
#include <sys/sysctl.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <compat/sys/time.h>
int
compat_43_sys_getdtablesize(struct lwp *l, const void *v, register_t *retval)
{
struct proc *p = l->l_proc;
mutex_enter(p->p_lock);
*retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles);
mutex_exit(p->p_lock);
return (0);
}
/* ARGSUSED */
int
compat_43_sys_gethostid(struct lwp *l, const void *v, register_t *retval)
{
*(int32_t *)retval = hostid;
return (0);
}
/*ARGSUSED*/
int
compat_43_sys_gethostname(struct lwp *l, const struct compat_43_sys_gethostname_args *uap, register_t *retval)
{
/* {
syscallarg(char *) hostname;
syscallarg(u_int) len;
} */
int name[2];
size_t sz;
name[0] = CTL_KERN;
name[1] = KERN_HOSTNAME;
sz = SCARG(uap, len);
return (old_sysctl(&name[0], 2, SCARG(uap, hostname), &sz, 0, 0, l));
}
#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 timeval50 boottime;
char *hostname;
};
int
compat_43_sys_getkerninfo(struct lwp *l, const struct compat_43_sys_getkerninfo_args *uap, register_t *retval)
{
/* {
syscallarg(int) op;
syscallarg(char *) where;
syscallarg(int *) size;
syscallarg(int) arg;
} */
int error, name[6];
size_t size;
if (SCARG(uap, size) && (error = copyin((void *)SCARG(uap, size),
(void *)&size, sizeof(size))))
return (error);
switch (SCARG(uap, op) & 0xff00) {
case KINFO_RT:
name[0] = CTL_NET;
name[1] = PF_ROUTE;
name[2] = 0;
name[3] = (SCARG(uap, op) & 0xff0000) >> 16;
name[4] = SCARG(uap, op) & 0xff;
name[5] = SCARG(uap, arg);
error = old_sysctl(&name[0], 6, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_VNODE:
name[0] = CTL_KERN;
name[1] = KERN_VNODE;
error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_PROC:
name[0] = CTL_KERN;
name[1] = KERN_PROC;
name[2] = SCARG(uap, op) & 0xff;
name[3] = SCARG(uap, arg);
error = old_sysctl(&name[0], 4, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_FILE:
name[0] = CTL_KERN;
name[1] = KERN_FILE;
error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_METER:
name[0] = CTL_VM;
name[1] = VM_METER;
error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_LOADAVG:
name[0] = CTL_VM;
name[1] = VM_LOADAVG;
error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_CLOCKRATE:
name[0] = CTL_KERN;
name[1] = KERN_CLOCKRATE;
error = old_sysctl(&name[0], 2, SCARG(uap, where), &size,
NULL, 0, l);
break;
case KINFO_BSDI_SYSINFO:
{
size_t len;
struct bsdi_si *usi =
(struct bsdi_si *) SCARG(uap, where);
struct bsdi_si ksi;
struct timeval tv;
char *us = (char *) &usi[1];
if (usi == NULL) {
size = sizeof(ksi) +
strlen(ostype) + strlen(cpu_model) +
strlen(osrelease) + strlen(machine) +
strlen(version) + strlen(hostname) + 6;
error = 0;
break;
}
#define COPY(fld) \
ksi.fld = us - (u_long) usi; \
if ((error = copyoutstr(fld, us, 1024, &len)) != 0)\
return error; \
us += len
COPY(machine);
COPY(cpu_model);
ksi.ncpu = ncpu; /* XXX */
ksi.cpuspeed = 40; /* XXX */
ksi.hwflags = 0; /* XXX */
ksi.physmem = ctob(physmem);
ksi.usermem = ctob(physmem); /* XXX */
ksi.pagesize = PAGE_SIZE;
COPY(ostype);
COPY(osrelease);
ksi.os_revision = NetBSD; /* XXX */
ksi.posix1_version = _POSIX_VERSION;
COPY(version); /* XXX */
ksi.hz = hz;
ksi.profhz = profhz;
ksi.ngroups_max = NGROUPS_MAX;
ksi.arg_max = ARG_MAX;
ksi.open_max = OPEN_MAX;
ksi.child_max = CHILD_MAX;
TIMESPEC_TO_TIMEVAL(&tv, &boottime);
timeval_to_timeval50(&tv, &ksi.boottime);
COPY(hostname);
size = (us - (char *) &usi[1]) + sizeof(ksi);
if ((error = copyout(&ksi, usi, sizeof(ksi))) != 0)
return error;
}
break;
default:
return (EOPNOTSUPP);
}
if (error)
return (error);
*retval = size;
if (SCARG(uap, size))
error = copyout((void *)&size, (void *)SCARG(uap, size),
sizeof(size));
return (error);
}
/* ARGSUSED */
int
compat_43_sys_sethostid(struct lwp *l, const struct compat_43_sys_sethostid_args *uap, register_t *retval)
{
long uhostid;
int name[2];
uhostid = SCARG(uap, hostid);
name[0] = CTL_KERN;
name[1] = KERN_HOSTID;
return (old_sysctl(&name[0], 2, 0, 0, &uhostid, sizeof(long), l));
}
/* ARGSUSED */
int
compat_43_sys_sethostname(struct lwp *l, const struct compat_43_sys_sethostname_args *uap, register_t *retval)
{
int name[2];
name[0] = CTL_KERN;
name[1] = KERN_HOSTNAME;
return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, hostname),
SCARG(uap, len), l));
}
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