1219820Sjeff/* $NetBSD: exec_prot.h,v 1.1 2011/07/18 23:16:11 jym Exp $ */ 2219820Sjeff 3219820Sjeff/*- 4219820Sjeff * Copyright (c) 2011 The NetBSD Foundation, Inc. 5219820Sjeff * All rights reserved. 6219820Sjeff * 7219820Sjeff * This code is derived from software contributed to The NetBSD Foundation 8219820Sjeff * by Jean-Yves Migeon. 9219820Sjeff * 10219820Sjeff * Redistribution and use in source and binary forms, with or without 11219820Sjeff * modification, are permitted provided that the following conditions 12219820Sjeff * are met: 13219820Sjeff * 1. Redistributions of source code must retain the above copyright 14219820Sjeff * notice, this list of conditions and the following disclaimer. 15219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 16219820Sjeff * notice, this list of conditions and the following disclaimer in the 17219820Sjeff * documentation and/or other materials provided with the distribution. 18219820Sjeff * 19219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20219820Sjeff * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21219820Sjeff * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22219820Sjeff * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23219820Sjeff * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24219820Sjeff * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25219820Sjeff * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26219820Sjeff * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27219820Sjeff * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28219820Sjeff * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29219820Sjeff * POSSIBILITY OF SUCH DAMAGE. 30219820Sjeff */ 31219820Sjeff 32219820Sjeff#ifndef _TESTS_EXEC_PROT_H_ 33219820Sjeff#define _TESTS_EXEC_PROT_H_ 34219820Sjeff 35219820Sjeff/* 36219820Sjeff * Prototype definitions of external helper functions for executable 37219820Sjeff * mapping tests. 38219820Sjeff */ 39219820Sjeff 40219820Sjeff/* 41219820Sjeff * Trivial MD shellcode that justs returns 1. 42219820Sjeff */ 43219820Sjeffint return_one(void); /* begin marker -- shellcode entry */ 44219820Sjeffint return_one_end(void); /* end marker */ 45219820Sjeff 46219820Sjeff/* 47219820Sjeff * MD callback to verify whether host offers executable space protection. 48219820Sjeff * Returns execute protection level. 49219820Sjeff */ 50219820Sjeffint exec_prot_support(void); 51219820Sjeff 52219820Sjeff/* execute protection level */ 53219820Sjeffenum { 54219820Sjeff NOTIMPL = -1, /* callback not implemented */ 55219820Sjeff NO_XP, /* no execute protection */ 56219820Sjeff PERPAGE_XP, /* per-page execute protection */ 57219820Sjeff PARTIAL_XP /* partial execute protection. Depending on where the 58219820Sjeff page is located in virtual memory, executable space 59219820Sjeff protection may be enforced or not. */ 60219820Sjeff}; 61219820Sjeff#endif 62219820Sjeff