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/*-
* Copyright (c) 2001 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by NAI Labs, the
* Security Research Division of Network Associates, Inc. under
* DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
* CHATS research program.
*
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $Id: lomac.c,v 1.3 2001/11/26 21:04:04 bfeldman Exp $
*/
/*
* This file encapsulates ls's use of LOMAC's ioctl interface. ls uses
* this interface to determine the LOMAC attributes of files.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <security/lomac/lomacio.h>
#include <err.h>
#include <fts.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include "lomac.h"
#define LOMAC_DEVICE "/dev/lomac"
static int devlomac = -1; /* file descriptor for LOMAC_DEVICE */
/* lomac_start()
*
* in: nothing
* out: nothing
* return: nothing
*
* Makes `devlomac' a fd to LOMAC_DEVICE
*/
static void
lomac_start(void)
{
if ((devlomac = open(LOMAC_DEVICE, O_RDWR)) == -1)
err(1, "cannot open %s", LOMAC_DEVICE);
}
/* lomac_stop()
*
* in: nothing
* out: nothing
* return: nothing
*
* Closes `devlomac', the fd to LOMAC_DEVICE.
*/
void
lomac_stop(void)
{
if (devlomac != -1 && close(devlomac) == -1)
err(1, "cannot close %s", LOMAC_DEVICE);
}
/* get_lattr()
*
* in: pid - pid of process whose level we want to know
* out: nothing
* return: level of proces `pid'
*
* This function uses LOMAC's ioctl interface to determine the LOMAC
* attributes of the process with pid `pid'.
*
* This function presently reports only levels. When LOMAC's ioctl
* interface is expanded to report levels and flags, this function
* will also need expansion.
*/
int
get_lattr(int pid)
{
if (devlomac == -1)
lomac_start();
if (ioctl(devlomac, LIOGETPLEVEL, &pid) == -1)
err(1, NULL);
return (pid);
}
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