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 (at] 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 37 check_prog mkdir 38 check_prog seq 39 check_prog touch 40 41 mkdir dir || 42 framework_skip_ 'failed to create a directory' 43 44 file="dir/$(for i in $(seq 1 127); do echo A; done; echo Z)" 45 46 touch -- "$file" || 47 framework_skip_ 'failed to create a file' 48 49 run_prog ../scm_rights /dev/zero 50 run_strace -y -x -e%network $args "$file" 51 52 hex='[[:xdigit:]]' 53 n='[1-9][0-9]*' 54 sample="$(for i in $(seq 1 15); do printf '\\\\xf%x' $i; done)" 55 socket='<socket:\[[0-9]+\]>' 56 57 path6='(/.*/(A\\n){127}Z|\\x2f(\\x'"$hex$hex"')*\\x2f(\\x41\\x0a){127}\\x5a)' 58 rights_data='\[4</dev/null>, 5</dev/zero>, 6<'"$path6"'>\]' 59 iov='\[\{iov_base="'"$sample"'", iov_len=15\}\]' 60 ids='\{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}' 61 62 msg_head='\{msg_name=NULL, msg_namelen=0, msg_iov='"$iov"', msg_iovlen=1, msg_control=' 63 msg_tail=', msg_controllen='"$n"', msg_flags=0' 64 rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data='"$rights_data"'\}' 65 creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data='"$ids"'\}' 66 67 cat > "$EXP" << __EOF__ 68 sendmsg\\(3$socket, $msg_head\\[$rights\\]$msg_tail\\}, 0\\) = 15 69 recvmsg\\(0$socket, $msg_head\\[$creds, $rights\\]$msg_tail\\}, 0\\) = 15 70 __EOF__ 71 72 match_grep "$LOG" "$EXP" 73
