priv_vm_mlock.c revision 162271
1162271Srwatson/*- 2162271Srwatson * Copyright (c) 2006 nCircle Network Security, Inc. 3162271Srwatson * All rights reserved. 4162271Srwatson * 5162271Srwatson * This software was developed by Robert N. M. Watson for the TrustedBSD 6162271Srwatson * Project under contract to nCircle Network Security, Inc. 7162271Srwatson * 8162271Srwatson * Redistribution and use in source and binary forms, with or without 9162271Srwatson * modification, are permitted provided that the following conditions 10162271Srwatson * are met: 11162271Srwatson * 1. Redistributions of source code must retain the above copyright 12162271Srwatson * notice, this list of conditions and the following disclaimer. 13162271Srwatson * 2. Redistributions in binary form must reproduce the above copyright 14162271Srwatson * notice, this list of conditions and the following disclaimer in the 15162271Srwatson * documentation and/or other materials provided with the distribution. 16162271Srwatson * 17162271Srwatson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18162271Srwatson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19162271Srwatson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20162271Srwatson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY, 21162271Srwatson * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22162271Srwatson * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 23162271Srwatson * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 24162271Srwatson * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 25162271Srwatson * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 26162271Srwatson * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 27162271Srwatson * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28162271Srwatson * 29162271Srwatson * $FreeBSD: head/tools/regression/priv/priv_vm_mlock.c 162271 2006-09-13 09:05:39Z rwatson $ 30162271Srwatson */ 31162271Srwatson 32162271Srwatson/* 33162271Srwatson * Test that mlock() requires privilege by running it first with privilege, 34162271Srwatson * then again without. 35162271Srwatson */ 36162271Srwatson 37162271Srwatson#include <sys/types.h> 38162271Srwatson#include <sys/mman.h> 39162271Srwatson 40162271Srwatson#include <err.h> 41162271Srwatson#include <errno.h> 42162271Srwatson#include <unistd.h> 43162271Srwatson 44162271Srwatson#include "main.h" 45162271Srwatson 46162271Srwatsonvoid 47162271Srwatsonpriv_vm_mlock(void) 48162271Srwatson{ 49162271Srwatson int error; 50162271Srwatson 51162271Srwatson assert_root(); 52162271Srwatson 53162271Srwatson error = mlock(&error, getpagesize()); 54162271Srwatson if (error) 55162271Srwatson err(-1, "mlock as root"); 56162271Srwatson 57162271Srwatson set_euid(UID_OTHER); 58162271Srwatson 59162271Srwatson error = mlock(&error, getpagesize()); 60162271Srwatson if (error == 0) 61162271Srwatson errx(-1, "mlock as !root succeeded"); 62162271Srwatson if (errno != EPERM) 63162271Srwatson err(-1, "mlock as !root wrong errno %d", errno); 64162271Srwatson} 65