exec_prot.h revision 272343
1272343Sngie/* $NetBSD: exec_prot.h,v 1.1 2011/07/18 23:16:11 jym Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2011 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Jean-Yves Migeon. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie 32272343Sngie#ifndef _TESTS_EXEC_PROT_H_ 33272343Sngie#define _TESTS_EXEC_PROT_H_ 34272343Sngie 35272343Sngie/* 36272343Sngie * Prototype definitions of external helper functions for executable 37272343Sngie * mapping tests. 38272343Sngie */ 39272343Sngie 40272343Sngie/* 41272343Sngie * Trivial MD shellcode that justs returns 1. 42272343Sngie */ 43272343Sngieint return_one(void); /* begin marker -- shellcode entry */ 44272343Sngieint return_one_end(void); /* end marker */ 45272343Sngie 46272343Sngie/* 47272343Sngie * MD callback to verify whether host offers executable space protection. 48272343Sngie * Returns execute protection level. 49272343Sngie */ 50272343Sngieint exec_prot_support(void); 51272343Sngie 52272343Sngie/* execute protection level */ 53272343Sngieenum { 54272343Sngie NOTIMPL = -1, /* callback not implemented */ 55272343Sngie NO_XP, /* no execute protection */ 56272343Sngie PERPAGE_XP, /* per-page execute protection */ 57272343Sngie PARTIAL_XP /* partial execute protection. Depending on where the 58272343Sngie page is located in virtual memory, executable space 59272343Sngie protection may be enforced or not. */ 60272343Sngie}; 61272343Sngie#endif 62