strace/tests/scm_rights-fd.test
Dmitry V. Levin 8f54664d68 tests: factor out common shell code to functions
Factor out shell code used in several tests to common functions.

* tests/fanotify_mark.expected: New file.
* tests/ioctl.expected: New file.
* tests/net-fd.expected: New file.
* tests/net.expected: New file.
* tests/statfs.expected: New file.
* tests/sun_path.expected: New file.
* tests/uio.expected: New file.
* tests/ipc.sh: New file.
* tests/Makefile.am (EXTRA_DIST): Add them.
* tests/init.sh (dump_log_and_fail_with, run_prog,
run_prog_skip_if_failed, run_strace, run_strace_merge,
match_awk, match_diff, match_grep): New functions.
* tests/*.test: Use them.
2015-03-18 02:29:36 +00:00

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#!/bin/sh
# Check how SCM_RIGHTS and SCM_CREDENTIALS control messages are decoded in -y mode.
. "${srcdir=.}/init.sh"
# strace -y is implemented using /proc/$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_merge -y -x -enetwork $args "$file"
n='[1-9][0-9]*'
msg='\{msg_name\(0\)=NULL, msg_iov\(1\)=\[\{"\\x00\\x00\\x00\\x00[^"]*", '"$n"'\}\], msg_controllen='"$n"
rights='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, \[3</dev/null>, 4</dev/zero>, 5</[^}>]*/(A\\n){127}Z>\]\}'
creds='\{cmsg_len='"$n"', cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, \{pid='"$n"', uid=[0-9]+, gid=[0-9]+\}\}'
prefix='[1-9][0-9]* +[0-9]+:[0-9]+:[0-9]+\.[0-9]+ +'
EXPECTED="$LOG.expected"
cat > "$EXPECTED" << __EOF__
${prefix}sendmsg\\(1<socket:\\[[0-9]+\\]>, $msg, \\[$rights\\], msg_flags=0\\}, 0\\) += $n
${prefix}recvmsg\\(0<socket:\\[[0-9]+\\]>, $msg, \\[$creds, $rights\\], msg_flags=0\\}, 0\\) += $n
__EOF__
match_grep "$LOG" "$EXPECTED"
rm -f "$EXPECTED"
rm -rf -- "$dir"
exit 0