120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/*-
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* Copyright (c) 2001 Networks Associates Technology, Inc.
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by NAI Labs, the
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* Security Research Division of Network Associates, Inc. under
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* DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
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* CHATS research program.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: lomac.c,v 1.3 2001/11/26 21:04:04 bfeldman Exp $
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*/
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/*
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* This file encapsulates ls's use of LOMAC's ioctl interface. ls uses
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* this interface to determine the LOMAC attributes of files.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/lomacio.h>
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#include <err.h>
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#include <fts.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "lomac.h"
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#define LOMAC_DEVICE "/dev/lomac"
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static int devlomac = -1; /* file descriptor for LOMAC_DEVICE */
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/* lomac_start()
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*
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* in: nothing
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* out: nothing
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* return: nothing
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*
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* Makes `devlomac' a fd to LOMAC_DEVICE
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*/
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static void
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lomac_start(void)
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{
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if ((devlomac = open(LOMAC_DEVICE, O_RDWR)) == -1)
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err(1, "cannot open %s", LOMAC_DEVICE);
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}
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/* lomac_stop()
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*
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* in: nothing
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* out: nothing
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* return: nothing
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*
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* Closes `devlomac', the fd to LOMAC_DEVICE.
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*/
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void
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lomac_stop(void)
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{
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if (devlomac != -1 && close(devlomac) == -1)
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err(1, "cannot close %s", LOMAC_DEVICE);
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}
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/* get_lattr()
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*
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* in: pid - pid of process whose level we want to know
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* out: nothing
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* return: level of proces `pid'
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*
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* This function uses LOMAC's ioctl interface to determine the LOMAC
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* attributes of the process with pid `pid'.
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*
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* This function presently reports only levels. When LOMAC's ioctl
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* interface is expanded to report levels and flags, this function
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* will also need expansion.
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*/
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int
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get_lattr(int pid)
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{
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if (devlomac == -1)
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lomac_start();
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if (ioctl(devlomac, LIOGETPLEVEL, &pid) == -1)
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err(1, NULL);
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return (pid);
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}
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