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/* $FreeBSD$ */
/*
* Copyright (C) 2012 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*/
/*
* 29/12/94 Added code from Marc Huber <huber@fzi.de> to allow it to allocate
* its own major char number! Way cool patch!
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/file.h>
#include <sys/conf.h>
#include <sys/syslog.h>
#include <sys/buf.h>
#include <sys/param.h>
#include <sys/errno.h>
#include <sys/uio.h>
#include <sys/vnode.h>
#include <sundev/mbvar.h>
#include <sun/autoconf.h>
#include <sun/vddrv.h>
#if defined(sun4c) || defined(sun4m)
#include <sun/openprom.h>
#endif
#ifndef IPL_NAME
#define IPL_NAME "/dev/ipf"
#endif
extern int ipfattach(), ipfopen(), ipfclose(), ipfioctl(), ipfread();
extern int nulldev(), ipfidentify(), errno;
struct cdevsw ipfdevsw =
{
ipfopen, ipfclose, ipfread, nulldev,
ipfioctl, nulldev, nulldev, nulldev,
0, nulldev,
};
struct dev_ops ipf_ops =
{
1,
ipfidentify,
ipfattach,
ipfopen,
ipfclose,
ipfread,
NULL, /* write */
NULL, /* strategy */
NULL, /* dump */
0, /* psize */
ipfioctl,
NULL, /* reset */
NULL /* mmap */
};
int ipf_major = 0;
#ifdef sun4m
struct vdldrv vd =
{
VDMAGIC_PSEUDO,
"ipf",
&ipf_ops,
NULL,
&ipfdevsw,
0,
0,
NULL,
NULL,
NULL,
0,
1,
};
#else /* sun4m */
struct vdldrv vd =
{
VDMAGIC_PSEUDO, /* magic */
"ipf", /* name */
#ifdef sun4c
&ipf_ops, /* dev_ops */
#else
NULL, /* struct mb_ctlr *mb_ctlr */
NULL, /* struct mb_driver *mb_driver */
NULL, /* struct mb_device *mb_device */
0, /* num ctlrs */
1, /* numdevs */
#endif /* sun4c */
NULL, /* bdevsw */
&ipfdevsw, /* cdevsw */
0, /* block major */
0, /* char major */
};
#endif /* sun4m */
extern int vd_unuseddev();
extern struct cdevsw cdevsw[];
extern int nchrdev;
xxxinit(fc, vdp, vdi, vds)
u_int fc;
struct vddrv *vdp;
caddr_t vdi;
struct vdstat *vds;
{
struct vdlinkage *v;
int i;
switch (fc)
{
case VDLOAD:
while (ipf_major < nchrdev &&
cdevsw[ipf_major].d_open != vd_unuseddev)
ipf_major++;
if (ipf_major == nchrdev)
return ENODEV;
vd.Drv_charmajor = ipf_major;
vdp->vdd_vdtab = (struct vdlinkage *)&vd;
return ipf_attach(vdi);
case VDUNLOAD:
return unload(vdp, vdi);
case VDSTAT:
return 0;
default:
return EIO;
}
}
static unload(vdp, vdi)
struct vddrv *vdp;
struct vdioctl_unload *vdi;
{
int i;
(void) vn_remove(IPL_NAME, UIO_SYSSPACE, FILE);
return ipfdetach();
}
static int ipf_attach(vdi)
struct vdioctl_load *vdi;
{
struct vnode *vp;
struct vattr vattr;
int error = 0, fmode = S_IFCHR|0600;
(void) vn_remove(IPL_NAME, UIO_SYSSPACE, FILE);
vattr_null(&vattr);
vattr.va_type = MFTOVT(fmode);
vattr.va_mode = (fmode & 07777);
vattr.va_rdev = ipf_major<<8;
error = vn_create(IPL_NAME, UIO_SYSSPACE, &vattr, EXCL, 0, &vp);
if (error == 0)
VN_RELE(vp);
return ipfattach(0);
}
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