1# $OpenBSD: multiplex.sh,v 1.33 2020/06/24 15:16:23 markus Exp $ 2# Placed in the Public Domain. 3 4make_tmpdir 5CTL=${SSH_REGRESS_TMP}/ctl-sock 6 7tid="connection multiplexing" 8 9trace "will use ProxyCommand $proxycmd" 10if config_defined DISABLE_FD_PASSING ; then 11 echo "skipped (not supported on this platform)" 12 exit 0 13fi 14 15P=3301 # test port 16 17wait_for_mux_master_ready() 18{ 19 for i in 1 2 3 4 5 6 7 8 9; do 20 ${SSH} -F $OBJ/ssh_config -S $CTL -Ocheck otherhost \ 21 >/dev/null 2>&1 && return 0 22 sleep $i 23 done 24 fatal "mux master never becomes ready" 25} 26 27start_sshd 28 29start_mux_master() 30{ 31 trace "start master, fork to background" 32 ${SSH} -Nn2 -MS$CTL -F $OBJ/ssh_config -oSendEnv="_XXX_TEST" somehost \ 33 -E $TEST_REGRESS_LOGFILE 2>&1 & 34 # NB. $SSH_PID will be killed by test-exec.sh:cleanup on fatal errors. 35 SSH_PID=$! 36 wait_for_mux_master_ready 37} 38 39start_mux_master 40 41verbose "test $tid: envpass" 42trace "env passing over multiplexed connection" 43_XXX_TEST=blah ${SSH} -F $OBJ/ssh_config -oSendEnv="_XXX_TEST" -S$CTL otherhost sh << 'EOF' 44 test X"$_XXX_TEST" = X"blah" 45EOF 46if [ $? -ne 0 ]; then 47 fail "environment not found" 48fi 49 50verbose "test $tid: transfer" 51rm -f ${COPY} 52trace "ssh transfer over multiplexed connection and check result" 53${SSH} -F $OBJ/ssh_config -S$CTL otherhost cat ${DATA} > ${COPY} 54test -f ${COPY} || fail "ssh -Sctl: failed copy ${DATA}" 55cmp ${DATA} ${COPY} || fail "ssh -Sctl: corrupted copy of ${DATA}" 56 57rm -f ${COPY} 58trace "ssh transfer over multiplexed connection and check result" 59${SSH} -F $OBJ/ssh_config -S $CTL otherhost cat ${DATA} > ${COPY} 60test -f ${COPY} || fail "ssh -S ctl: failed copy ${DATA}" 61cmp ${DATA} ${COPY} || fail "ssh -S ctl: corrupted copy of ${DATA}" 62 63rm -f ${COPY} 64trace "sftp transfer over multiplexed connection and check result" 65echo "get ${DATA} ${COPY}" | \ 66 ${SFTP} -S ${SSH} -F $OBJ/ssh_config -oControlPath=$CTL otherhost >>$TEST_REGRESS_LOGFILE 2>&1 67test -f ${COPY} || fail "sftp: failed copy ${DATA}" 68cmp ${DATA} ${COPY} || fail "sftp: corrupted copy of ${DATA}" 69 70rm -f ${COPY} 71trace "scp transfer over multiplexed connection and check result" 72${SCP} -S ${SSH} -F $OBJ/ssh_config -oControlPath=$CTL otherhost:${DATA} ${COPY} >>$TEST_REGRESS_LOGFILE 2>&1 73test -f ${COPY} || fail "scp: failed copy ${DATA}" 74cmp ${DATA} ${COPY} || fail "scp: corrupted copy of ${DATA}" 75 76rm -f ${COPY} 77verbose "test $tid: forward" 78trace "forward over TCP/IP and check result" 79$NC -N -l 127.0.0.1 $((${PORT} + 1)) < ${DATA} > /dev/null & 80netcat_pid=$! 81${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -L127.0.0.1:$((${PORT} + 2)):127.0.0.1:$((${PORT} + 1)) otherhost >>$TEST_SSH_LOGFILE 2>&1 82sleep 1 # XXX remove once race fixed 83$NC 127.0.0.1 $((${PORT} + 2)) < /dev/null > ${COPY} 84cmp ${DATA} ${COPY} || fail "ssh: corrupted copy of ${DATA}" 85kill $netcat_pid 2>/dev/null 86rm -f ${COPY} $OBJ/unix-[123].fwd 87 88trace "forward over UNIX and check result" 89$NC -N -Ul $OBJ/unix-1.fwd < ${DATA} > /dev/null & 90netcat_pid=$! 91${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -L$OBJ/unix-2.fwd:$OBJ/unix-1.fwd otherhost >>$TEST_SSH_LOGFILE 2>&1 92${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -R$OBJ/unix-3.fwd:$OBJ/unix-2.fwd otherhost >>$TEST_SSH_LOGFILE 2>&1 93sleep 1 # XXX remove once race fixed 94$NC -U $OBJ/unix-3.fwd < /dev/null > ${COPY} 95cmp ${DATA} ${COPY} || fail "ssh: corrupted copy of ${DATA}" 96kill $netcat_pid 2>/dev/null 97rm -f ${COPY} $OBJ/unix-[123].fwd 98 99for s in 0 1 4 5 44; do 100 for mode in "" "-Oproxy"; do 101 trace "exit status $s over multiplexed connection ($mode)" 102 verbose "test $tid: status $s ($mode)" 103 ${SSH} -F $OBJ/ssh_config -S $CTL $mode otherhost exit $s 104 r=$? 105 if [ $r -ne $s ]; then 106 fail "exit code mismatch: $r != $s" 107 fi 108 109 # same with early close of stdout/err 110 trace "exit status $s with early close over multiplexed connection ($mode)" 111 ${SSH} -F $OBJ/ssh_config -S $CTL -n $mode otherhost \ 112 exec sh -c \'"sleep 2; exec > /dev/null 2>&1; sleep 3; exit $s"\' 113 r=$? 114 if [ $r -ne $s ]; then 115 fail "exit code (with sleep) mismatch: $r != $s" 116 fi 117 done 118done 119 120verbose "test $tid: cmd check" 121${SSH} -F $OBJ/ssh_config -S $CTL -Ocheck otherhost >>$TEST_REGRESS_LOGFILE 2>&1 \ 122 || fail "check command failed" 123 124verbose "test $tid: cmd forward local (TCP)" 125${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -L $P:localhost:$PORT otherhost \ 126 || fail "request local forward failed" 127sleep 1 # XXX remove once race fixed 128${SSH} -F $OBJ/ssh_config -p$P otherhost true \ 129 || fail "connect to local forward port failed" 130${SSH} -F $OBJ/ssh_config -S $CTL -Ocancel -L $P:localhost:$PORT otherhost \ 131 || fail "cancel local forward failed" 132${SSH} -F $OBJ/ssh_config -p$P otherhost true \ 133 && fail "local forward port still listening" 134 135verbose "test $tid: cmd forward remote (TCP)" 136${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -R $P:localhost:$PORT otherhost \ 137 || fail "request remote forward failed" 138sleep 1 # XXX remove once race fixed 139${SSH} -F $OBJ/ssh_config -p$P otherhost true \ 140 || fail "connect to remote forwarded port failed" 141${SSH} -F $OBJ/ssh_config -S $CTL -Ocancel -R $P:localhost:$PORT otherhost \ 142 || fail "cancel remote forward failed" 143${SSH} -F $OBJ/ssh_config -p$P otherhost true \ 144 && fail "remote forward port still listening" 145 146verbose "test $tid: cmd forward local (UNIX)" 147${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -L $OBJ/unix-1.fwd:localhost:$PORT otherhost \ 148 || fail "request local forward failed" 149sleep 1 # XXX remove once race fixed 150echo "" | $NC -U $OBJ/unix-1.fwd | \ 151 grep "Invalid SSH identification string" >/dev/null 2>&1 \ 152 || fail "connect to local forward path failed" 153${SSH} -F $OBJ/ssh_config -S $CTL -Ocancel -L $OBJ/unix-1.fwd:localhost:$PORT otherhost \ 154 || fail "cancel local forward failed" 155N=$(echo "xyzzy" | $NC -U $OBJ/unix-1.fwd 2>&1 | grep "xyzzy" | wc -l) 156test ${N} -eq 0 || fail "local forward path still listening" 157rm -f $OBJ/unix-1.fwd 158 159verbose "test $tid: cmd forward remote (UNIX)" 160${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -R $OBJ/unix-1.fwd:localhost:$PORT otherhost \ 161 || fail "request remote forward failed" 162sleep 1 # XXX remove once race fixed 163echo "" | $NC -U $OBJ/unix-1.fwd | \ 164 grep "Invalid SSH identification string" >/dev/null 2>&1 \ 165 || fail "connect to remote forwarded path failed" 166${SSH} -F $OBJ/ssh_config -S $CTL -Ocancel -R $OBJ/unix-1.fwd:localhost:$PORT otherhost \ 167 || fail "cancel remote forward failed" 168N=$(echo "xyzzy" | $NC -U $OBJ/unix-1.fwd 2>&1 | grep "xyzzy" | wc -l) 169test ${N} -eq 0 || fail "remote forward path still listening" 170rm -f $OBJ/unix-1.fwd 171 172verbose "test $tid: cmd exit" 173${SSH} -F $OBJ/ssh_config -S $CTL -Oexit otherhost >>$TEST_REGRESS_LOGFILE 2>&1 \ 174 || fail "send exit command failed" 175 176# Wait for master to exit 177wait $SSH_PID 178kill -0 $SSH_PID >/dev/null 2>&1 && fail "exit command failed" 179 180# Restart master and test -O stop command with master using -N 181verbose "test $tid: cmd stop" 182trace "restart master, fork to background" 183start_mux_master 184 185# start a long-running command then immediately request a stop 186${SSH} -F $OBJ/ssh_config -S $CTL otherhost "sleep 10; exit 0" \ 187 >>$TEST_REGRESS_LOGFILE 2>&1 & 188SLEEP_PID=$! 189${SSH} -F $OBJ/ssh_config -S $CTL -Ostop otherhost >>$TEST_REGRESS_LOGFILE 2>&1 \ 190 || fail "send stop command failed" 191 192# wait until both long-running command and master have exited. 193wait $SLEEP_PID 194[ $! != 0 ] || fail "waiting for concurrent command" 195wait $SSH_PID 196[ $! != 0 ] || fail "waiting for master stop" 197kill -0 $SSH_PID >/dev/null 2>&1 && fatal "stop command failed" 198SSH_PID="" # Already gone, so don't kill in cleanup 199 200