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 # All rights reserved. 7 # 8 # Redistribution and use in source and binary forms, with or without 9 # modification, are permitted provided that the following conditions 10 # are met: 11 # 1. Redistributions of source code must retain the above copyright 12 # notice, this list of conditions and the following disclaimer. 13 # 2. Redistributions in binary form must reproduce the above copyright 14 # notice, this list of conditions and the following disclaimer in the 15 # documentation and/or other materials provided with the distribution. 16 # 3. The name of the author may not be used to endorse or promote products 17 # derived from this software without specific prior written permission. 18 # 19 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 . "${srcdir=.}/init.sh" 31 32 # strace -y is implemented using /proc/$pid/fd 33 [ -d /proc/self/fd/ ] || 34 framework_skip_ '/proc/self/fd/ is not available' 35 36 check_prog mkdir 37 check_prog rm 38 check_prog seq 39 check_prog touch 40 41 dir="$LOG.dir" 42 rm -rf -- "$dir" 43 mkdir -- "$dir" || 44 framework_skip_ 'failed to create a directory' 45 46 file="$dir/$(for i in $(seq 1 127); do echo A; done; echo Z)" 47 48 touch -- "$file" || 49 framework_skip_ 'failed to create a file' 50 51 run_prog ./scm_rights /dev/zero 52 run_strace -y -x -enetwork $args "$file" 53 54 hex='[[:xdigit:]]' 55 n='[1-9][0-9]*' 56 sample="$(for i in $(seq 1 15); do printf '\\\\xf%x' $i; done)" 57 socket='<socket:\[[0-9]+\]>' 58 59 path6='(/.*/(A\\n){127}Z|\\x2f(\\x'"$hex$hex"')*\\x2f(\\x41\\x0a){127}\\x5a)' 60 rights_data='\[4</dev/null>, 5</dev/zero>, 6<'"$path6"'>\]' 61 iov='\[\{iov_base="'"$sample"'", iov_len=15\}\]' 62 ids='\{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}' 63 64 msg_head='\{msg_name=NULL, msg_namelen=0, msg_iov='"$iov"', msg_iovlen=1, msg_control=' 65 msg_tail=', msg_controllen='"$n"', msg_flags=0' 66 rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data='"$rights_data"'\}' 67 creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data='"$ids"'\}' 68 69 EXPECTED="$LOG.expected" 70 71 cat > "$EXPECTED" << __EOF__ 72 sendmsg\\(3$socket, $msg_head\\[$rights\\]$msg_tail\\}, 0\\) = 15 73 recvmsg\\(0$socket, $msg_head\\[$creds, $rights\\]$msg_tail\\}, 0\\) = 15 74 __EOF__ 75 76 match_grep "$LOG" "$EXPECTED" 77 rm -f "$EXPECTED" 78 rm -rf -- "$dir" 79 80 exit 0 81
