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/*  
 * This source file is a part of a Kaspersky Antivirus Monitor.
 * Copyright (C) Kaspersky Lab, 1997-2010
 * See License.txt for details
 *
 */

#include "module.h"

#if defined (__FreeBSD_version) && __FreeBSD_version >= 500000

#if __FreeBSD_version >= 500003
static int kavinfo_open (struct cdev * dev, int oflags, int devtype, struct thread *thr);
static int kavinfo_close (struct cdev * dev, int fflag, int devtype, struct thread *thr);
static int kavinfo_read (struct cdev * dev, struct uio *uio, int ioflag);
#else
static int kavinfo_open (dev_t dev, int oflags, int devtype, struct thread *thr);
static int kavinfo_close (dev_t dev, int fflag, int devtype, struct thread *thr);
static int kavinfo_read (dev_t dev, struct uio *uio, int ioflag);

#endif

struct cdevsw dev_kavinfo =
{
#if __FreeBSD_version >= 500003
	.d_version =    D_VERSION,
	.d_flags  =     0,
#endif	
	.d_open		= kavinfo_open,
	.d_close	= kavinfo_close,
	.d_read		= kavinfo_read,
#if __FreeBSD_version < 500003
	
	.d_write	= nowrite,
	.d_ioctl	= noioctl,
	.d_poll		= nopoll,
	.d_mmap		= nommap,
	.d_strategy	= nostrategy,
	.d_dump		= nodump,
	.d_kqfilter	= NULL,
#endif	
	.d_name		= "KAVPROC",
#if __FreeBSD_version < 600003
	.d_maj		= KAVMON_DEVICE_MAJOR,
#endif

#if __FreeBSD_version < 501000
	.d_psize	= nopsize,
	.d_flags	= 0
#endif

};
#elif defined (__FreeBSD_version) && __FreeBSD_version >= 400006

static int kavinfo_open (dev_t dev, int oflags, int devtype, struct proc *p);
static int kavinfo_close (dev_t dev, int fflag, int devtype, struct proc *p);
static int kavinfo_read (dev_t dev, struct uio *uio, int ioflag);

struct cdevsw dev_kavinfo =
{
	kavinfo_open,
	kavinfo_close,
	kavinfo_read,
	nowrite,
	noioctl,
	nopoll,
	nommap,
	nostrategy,
	"KAVPROC",
	KAVMON_DEVICE_MAJOR,
	nodump,
	nopsize,
	D_TTY,
	-1
};
#else
struct cdevsw dev_kavinfo =
{
	kavinfo_open,
	kavinfo_close,
	kavinfo_read,
	nowrite,
	noioctl,
	nostop,
	nullreset,
	nodevtotty,
	nopoll,
	nommap,
	NULL,
	"KAVPROC",
	NULL,
	-1
};
#endif

static int monitor_minor;

#if defined (__FreeBSD_version) && __FreeBSD_version >= 500000
static struct cdev * kavdev_monitor, * kavdev_info;
#else
static dev_t kavdev_monitor, kavdev_exploit, kavdev_info;
#endif
static char * monitor_info, *pinfo;

int Monitor_interface_init (void)
{
    Monitor_cache_init();
	Monitor_module_init();
	Monitor_queue_init();
	
	monitor_minor	= 1;

#if defined (__FreeBSD_version) && __FreeBSD_version >= 400006

#if defined (__FreeBSD_version) && __FreeBSD_version >= 600000
	monitor_minor	= KAVMON_DEVICE_MAJOR+1;

kavdev_info    = make_dev (&dev_kavinfo, KAVMON_DEVICE_MAJOR, UID_ROOT, GID_WHEEL, 
				   0644, "kavproc");

kavdev_monitor = make_dev (&dev_kavmonitor, monitor_minor, UID_ROOT, GID_WHEEL, 
				   0644, "kav4fs_oas");
    monitor_minor = dev2unit(kavdev_monitor);

#else

kavdev_info    = make_dev (&dev_kavinfo, 0, UID_ROOT, GID_WHEEL, 
				   0644, "kavproc");

kavdev_monitor = make_dev (&dev_kavmonitor, monitor_minor, UID_ROOT, GID_WHEEL, 
				   0644, "kav4fs_oas");

#endif
#else	
	kavdev_info = makedev (KAVMON_DEVICE_MAJOR, 0);
	cdevsw_add (&kavdev_info, &dev_kavinfo, NULL);

kavdev_monitor = makedev (KAVMON_DEVICE_MAJOR, monitor_minor);
	cdevsw_add (&kavdev_monitor, &dev_kavmonitor, NULL);

#endif

monitor_info = MEM_ALLOC(PAGE_SIZE);
	
	Monitor_intercept_init();

return 0;
}

int Monitor_interface_cleanup(void)
{
	Monitor_intercept_deinit();
    Monitor_cache_finit();

/* 	cdevsw_remove (&dev_kavmonitor); */
/* 	cdevsw_remove (&dev_kavexploit); */
#if defined (__FreeBSD_version) && __FreeBSD_version >= 400006
	destroy_dev (kavdev_monitor);
	destroy_dev (kavdev_info);
#endif

MEM_FREE(monitor_info);
	return 0;
}

#if defined (__FreeBSD_version) && __FreeBSD_version < 500000
int kavinfo_open (dev_t dev, int oflags, int devtype, struct proc *p)
#else

#if __FreeBSD_version >= 500003
int kavinfo_open (struct cdev * dev, int oflags, int devtype, struct thread *thr)
#else

int kavinfo_open (dev_t dev, int oflags, int devtype, struct thread *thr)

#endif
	
#endif
{

#if defined (__FreeBSD_version) && __FreeBSD_version >= 600000
	sprintf(monitor_info,"%d \n%d %d %d\n \n",
        		FS_PROTOCOL_VERSION,0,monitor_minor,monitor_started);

#else
	sprintf(monitor_info,"%d \n%d %d %d\n \n",
        		FS_PROTOCOL_VERSION,KAVMON_DEVICE_MAJOR,monitor_minor,monitor_started);

#endif
			
	pinfo = monitor_info;

return 0;
}
#if defined (__FreeBSD_version) && __FreeBSD_version < 500000
int kavinfo_close (dev_t dev, int fflag, int devtype, struct proc *p)
#else

#if __FreeBSD_version >= 500003
int kavinfo_close (struct cdev * dev, int fflag, int devtype, struct thread *thr)
#else
int kavinfo_close (dev_t dev, int fflag, int devtype, struct thread *thr)
#endif

#endif
{

return 0;
}

#if defined (__FreeBSD_version) && __FreeBSD_version >= 500003
int kavinfo_read (struct cdev * dev, struct uio *uio, int ioflag)
#else
int kavinfo_read (dev_t dev, struct uio *uio, int ioflag)
#endif
	
{
	int len;

len = strlen(pinfo);
	
	if (len > uio->uio_resid) len = uio->uio_resid;
        if (len < 0) len = 0;
							
	
	if ( uiomove((char *)pinfo,len,uio)){
		return EFAULT;
	}
	
	pinfo+=len;

return 0;
}

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