tests/scm_rights-fd.test - platform/external/strace - Git at Google

 #!/bin/sh
 #
 # Check how SCM_RIGHTS and SCM_CREDENTIALS control messages are decoded in -y mode.
 #
 # Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 # 3. The name of the author may not be used to endorse or promote products
 #    derived from this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 . "${srcdir=.}/init.sh"

 # strace -y is implemented using /proc/$pid/fd
 [ -d /proc/self/fd/ ] ||
 	framework_skip_ '/proc/self/fd/ is not available'

 check_prog mkdir
 check_prog rm
 check_prog seq
 check_prog touch

 dir="$LOG.dir"
 rm -rf -- "$dir"
 mkdir -- "$dir" ||
 	framework_skip_ 'failed to create a directory'

 file="$dir/$(for i in $(seq 1 127); do echo A; done; echo Z)"

 touch -- "$file" ||
 	framework_skip_ 'failed to create a file'

 run_prog ./scm_rights /dev/zero
 run_strace -y -x -enetwork $args "$file"

 sample='\\xf1\\xf2\\xf3\\xf4\\xf5\\xf6\\xf7\\xf8\\xf9\\xfa\\xfb\\xfc\\xfd\\xfe\\xff'
 n='[1-9][0-9]*'
 msg='\{msg_name\(0\)=NULL, msg_iov\(1\)=\[\{"'"$sample"'", 15\}\], msg_controllen='"$n"
 rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, \[4</dev/null>, 5</dev/zero>, 6</[^}>]*/(A\\n){127}Z>\]\}'
 creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, \{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}\}'
 EXPECTED="$LOG.expected"

 cat > "$EXPECTED" << __EOF__
 sendmsg\\(3<socket:\\[[0-9]+\\]>, $msg, \\[$rights\\], msg_flags=0\\}, 0\\) = 15
 recvmsg\\(0<socket:\\[[0-9]+\\]>, $msg, \\[$creds, $rights\\], msg_flags=0\\}, 0\\) = 15
 __EOF__

 match_grep "$LOG" "$EXPECTED"
 rm -f "$EXPECTED"
 rm -rf -- "$dir"

 exit 0
	#!/bin/sh
	#
	# Check how SCM_RIGHTS and SCM_CREDENTIALS control messages are decoded in -y mode.
	#
	# Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
	# All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions
	# are met:
	# 1. Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.
	# 2. Redistributions in binary form must reproduce the above copyright
	# notice, this list of conditions and the following disclaimer in the
	# documentation and/or other materials provided with the distribution.
	# 3. The name of the author may not be used to endorse or promote products
	# derived from this software without specific prior written permission.
	#
	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	. "${srcdir=.}/init.sh"

	# strace -y is implemented using /proc/$pid/fd
	[ -d /proc/self/fd/ ] \|\|
	framework_skip_ '/proc/self/fd/ is not available'

	check_prog mkdir
	check_prog rm
	check_prog seq
	check_prog touch

	dir="$LOG.dir"
	rm -rf -- "$dir"
	mkdir -- "$dir" \|\|
	framework_skip_ 'failed to create a directory'

	file="$dir/$(for i in $(seq 1 127); do echo A; done; echo Z)"

	touch -- "$file" \|\|
	framework_skip_ 'failed to create a file'

	run_prog ./scm_rights /dev/zero
	run_strace -y -x -enetwork $args "$file"

	sample='\\xf1\\xf2\\xf3\\xf4\\xf5\\xf6\\xf7\\xf8\\xf9\\xfa\\xfb\\xfc\\xfd\\xfe\\xff'
	n='[1-9][0-9]*'
	msg='\{msg_name\(0\)=NULL, msg_iov\(1\)=\[\{"'"$sample"'", 15\}\], msg_controllen='"$n"
	rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, \[4</dev/null>, 5</dev/zero>, 6</[^}>]*/(A\\n){127}Z>\]\}'
	creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, \{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}\}'
	EXPECTED="$LOG.expected"

	cat > "$EXPECTED" << __EOF__
	sendmsg\\(3<socket:\\[[0-9]+\\]>, $msg, \\[$rights\\], msg_flags=0\\}, 0\\) = 15
	recvmsg\\(0<socket:\\[[0-9]+\\]>, $msg, \\[$creds, $rights\\], msg_flags=0\\}, 0\\) = 15
	__EOF__

	match_grep "$LOG" "$EXPECTED"
	rm -f "$EXPECTED"
	rm -rf -- "$dir"

	exit 0