1#!/bin/sh 2# 3# Check how SCM_RIGHTS and SCM_CREDENTIALS control messages are decoded in -y mode. 4# 5# Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org> 6# Copyright (c) 2014-2017 The strace developers. 7# All rights reserved. 8# 9# Redistribution and use in source and binary forms, with or without 10# modification, are permitted provided that the following conditions 11# are met: 12# 1. Redistributions of source code must retain the above copyright 13# notice, this list of conditions and the following disclaimer. 14# 2. Redistributions in binary form must reproduce the above copyright 15# notice, this list of conditions and the following disclaimer in the 16# documentation and/or other materials provided with the distribution. 17# 3. The name of the author may not be used to endorse or promote products 18# derived from this software without specific prior written permission. 19# 20# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31. "${srcdir=.}/init.sh" 32 33# strace -y is implemented using /proc/$pid/fd 34[ -d /proc/self/fd/ ] || 35 framework_skip_ '/proc/self/fd/ is not available' 36 37check_prog mkdir 38check_prog seq 39check_prog touch 40 41mkdir dir || 42 framework_skip_ 'failed to create a directory' 43 44file="dir/$(for i in $(seq 1 127); do echo A; done; echo Z)" 45 46touch -- "$file" || 47 framework_skip_ 'failed to create a file' 48 49run_prog ../scm_rights /dev/zero 50run_strace -y -x -e%network $args "$file" 51 52hex='[[:xdigit:]]' 53n='[1-9][0-9]*' 54sample="$(for i in $(seq 1 15); do printf '\\\\xf%x' $i; done)" 55socket='<socket:\[[0-9]+\]>' 56 57path6='(/.*/(A\\n){127}Z|\\x2f(\\x'"$hex$hex"')*\\x2f(\\x41\\x0a){127}\\x5a)' 58rights_data='\[4</dev/null>, 5</dev/zero>, 6<'"$path6"'>\]' 59iov='\[\{iov_base="'"$sample"'", iov_len=15\}\]' 60ids='\{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}' 61 62msg_head='\{msg_name=NULL, msg_namelen=0, msg_iov='"$iov"', msg_iovlen=1, msg_control=' 63msg_tail=', msg_controllen='"$n"', msg_flags=0' 64rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data='"$rights_data"'\}' 65creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data='"$ids"'\}' 66 67cat > "$EXP" << __EOF__ 68sendmsg\\(3$socket, $msg_head\\[$rights\\]$msg_tail\\}, 0\\) = 15 69recvmsg\\(0$socket, $msg_head\\[$creds, $rights\\]$msg_tail\\}, 0\\) = 15 70__EOF__ 71 72match_grep "$LOG" "$EXP" 73