3 # Check how SCM_RIGHTS and SCM_CREDENTIALS control messages are decoded in -y mode.
5 # Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
6 # Copyright (c) 2014-2017 The strace developers.
9 # SPDX-License-Identifier: GPL-2.0-or-later
11 . "${srcdir=.}/init.sh"
13 # strace -y is implemented using /proc/$pid/fd
14 [ -d /proc/self/fd/ ] ||
15 framework_skip_ '/proc/self/fd/ is not available'
22 framework_skip_ 'failed to create a directory'
24 file="dir/$(for i in $(seq 1 127); do echo A; done; echo Z)"
27 framework_skip_ 'failed to create a file'
29 run_prog ../scm_rights /dev/zero
30 run_strace -y -x -e%network $args "$file"
34 sample="$(for i in $(seq 1 15); do printf '\\\\xf%x' $i; done)"
35 socket='<socket:\[[0-9]+\]>'
37 path6='(/.*/(A\\n){127}Z|\\x2f(\\x'"$hex$hex"')*\\x2f(\\x41\\x0a){127}\\x5a)'
38 rights_data='\[4</dev/null>, 5</dev/zero>, 6<'"$path6"'>\]'
39 iov='\[\{iov_base="'"$sample"'", iov_len=15\}\]'
40 ids='\{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}'
42 msg_head='\{msg_name=NULL, msg_namelen=0, msg_iov='"$iov"', msg_iovlen=1, msg_control='
43 msg_tail=', msg_controllen='"$n"', msg_flags=0'
44 rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data='"$rights_data"'\}'
45 creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data='"$ids"'\}'
47 cat > "$EXP" << __EOF__
48 sendmsg\\(3$socket, $msg_head\\[$rights\\]$msg_tail\\}, 0\\) = 15
49 recvmsg\\(0$socket, $msg_head\\[$creds, $rights\\]$msg_tail\\}, 0\\) = 15
52 match_grep "$LOG" "$EXP"