scno_tampering.sh revision 77c3ff8e0644f1e120e4b2ebc7222150b0446f3b
1d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes#!/bin/sh 2d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 3d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# Skip the test if arch+kernel combination is not supported. 4d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 5d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> 639bac055674d23770b9a724221b728e443196ea7Elliott Hughes# Copyright (c) 2016-2017 The strace developers. 7d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# All rights reserved. 8d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 9d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# Redistribution and use in source and binary forms, with or without 10d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# modification, are permitted provided that the following conditions 11d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# are met: 12d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 1. Redistributions of source code must retain the above copyright 13d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# notice, this list of conditions and the following disclaimer. 14d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 2. Redistributions in binary form must reproduce the above copyright 15d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# notice, this list of conditions and the following disclaimer in the 16d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# documentation and/or other materials provided with the distribution. 17d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 3. The name of the author may not be used to endorse or promote products 18d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# derived from this software without specific prior written permission. 19d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# 20d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 31d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes. "${srcdir=.}/init.sh" 32d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes 33d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesuname_r="$(uname -r)" 34d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughescase "$STRACE_ARCH" in 35d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes arm) 36d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # PTRACE_SET_SYSCALL is supported by linux kernel 37d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # starting with commit v2.6.16-rc1~107^2. 38d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes require_min_kernel_version_or_skip 2.6.16 ;; 39d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes aarch64) 40d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # NT_ARM_SYSTEM_CALL regset is supported by linux kernel 41d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # starting with commit v3.19-rc1~59^2~16. 42d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes require_min_kernel_version_or_skip 3.19 ;; 43d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes hppa) 44d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # Syscall number and return value modification did not work 45d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # properly before commit v4.5-rc7~31^2~1. 46d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes require_min_kernel_version_or_skip 4.5 ;; 47d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes sparc*) 48d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # Reloading the syscall number from %g1 register is supported 49d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # by linux kernel starting with commit v4.5-rc7~35^2~3. 50d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes require_min_kernel_version_or_skip 4.5 ;; 51d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes mips) 52d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # Only the native ABI is supported by the kernel properly, see 53d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes # https://sourceforge.net/p/strace/mailman/message/35587571/ 5477c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes msg_prefix="mips $MIPS_ABI scno tampering does not work" 55d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes uname_m="$(uname -m)" 56d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes case "$MIPS_ABI:$uname_m" in 5777c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes n64:mips64) ;; 5877c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes o32:mips) 5977c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes # is it really mips32? 6077c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes if ../is_linux_mips_n64; then 6177c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes skip_ "$msg_prefix on mips n64 yet" 6277c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes fi 6377c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes ;; 6477c3ff8e0644f1e120e4b2ebc7222150b0446f3bElliott Hughes *) skip_ "$msg_prefix on $uname_m yet" ;; 65d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughes esac ;; 66d35df493b4e7684c50d2d2fa032ee3a7ac228009Elliott Hughesesac 67