1# $OpenBSD: forwarding.sh,v 1.11 2013/06/10 21:56:43 dtucker Exp $ 2# Placed in the Public Domain. 3 4tid="local and remote forwarding" 5 6DATA=/bin/ls${EXEEXT} 7 8start_sshd 9 10base=33 11last=$PORT 12fwd="" 13for j in 0 1 2; do 14 for i in 0 1 2; do 15 a=$base$j$i 16 b=`expr $a + 50` 17 c=$last 18 # fwd chain: $a -> $b -> $c 19 fwd="$fwd -L$a:127.0.0.1:$b -R$b:127.0.0.1:$c" 20 last=$a 21 done 22done 23for p in 1 2; do 24 q=`expr 3 - $p` 25 trace "start forwarding, fork to background" 26 ${SSH} -$p -F $OBJ/ssh_config -f $fwd somehost sleep 10 27 28 trace "transfer over forwarded channels and check result" 29 ${SSH} -$q -F $OBJ/ssh_config -p$last -o 'ConnectionAttempts=4' \ 30 somehost cat ${DATA} > ${COPY} 31 test -f ${COPY} || fail "failed copy of ${DATA}" 32 cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" 33 34 sleep 10 35done 36 37for p in 1 2; do 38for d in L R; do 39 trace "exit on -$d forward failure, proto $p" 40 41 # this one should succeed 42 ${SSH} -$p -F $OBJ/ssh_config \ 43 -$d ${base}01:127.0.0.1:$PORT \ 44 -$d ${base}02:127.0.0.1:$PORT \ 45 -$d ${base}03:127.0.0.1:$PORT \ 46 -$d ${base}04:127.0.0.1:$PORT \ 47 -oExitOnForwardFailure=yes somehost true 48 if [ $? != 0 ]; then 49 fail "connection failed, should not" 50 else 51 # this one should fail 52 ${SSH} -q -$p -F $OBJ/ssh_config \ 53 -$d ${base}01:127.0.0.1:$PORT \ 54 -$d ${base}02:127.0.0.1:$PORT \ 55 -$d ${base}03:127.0.0.1:$PORT \ 56 -$d ${base}01:127.0.0.1:$PORT \ 57 -$d ${base}04:127.0.0.1:$PORT \ 58 -oExitOnForwardFailure=yes somehost true 59 r=$? 60 if [ $r != 255 ]; then 61 fail "connection not termintated, but should ($r)" 62 fi 63 fi 64done 65done 66 67for p in 1 2; do 68 trace "simple clear forwarding proto $p" 69 ${SSH} -$p -F $OBJ/ssh_config -oClearAllForwardings=yes somehost true 70 71 trace "clear local forward proto $p" 72 ${SSH} -$p -f -F $OBJ/ssh_config -L ${base}01:127.0.0.1:$PORT \ 73 -oClearAllForwardings=yes somehost sleep 10 74 if [ $? != 0 ]; then 75 fail "connection failed with cleared local forwarding" 76 else 77 # this one should fail 78 ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \ 79 >>$TEST_REGRESS_LOGFILE 2>&1 && \ 80 fail "local forwarding not cleared" 81 fi 82 sleep 10 83 84 trace "clear remote forward proto $p" 85 ${SSH} -$p -f -F $OBJ/ssh_config -R ${base}01:127.0.0.1:$PORT \ 86 -oClearAllForwardings=yes somehost sleep 10 87 if [ $? != 0 ]; then 88 fail "connection failed with cleared remote forwarding" 89 else 90 # this one should fail 91 ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \ 92 >>$TEST_REGRESS_LOGFILE 2>&1 && \ 93 fail "remote forwarding not cleared" 94 fi 95 sleep 10 96done 97 98for p in 2; do 99 trace "stdio forwarding proto $p" 100 cmd="${SSH} -$p -F $OBJ/ssh_config" 101 $cmd -o "ProxyCommand $cmd -q -W localhost:$PORT somehost" \ 102 somehost true 103 if [ $? != 0 ]; then 104 fail "stdio forwarding proto $p" 105 fi 106done 107 108echo "LocalForward ${base}01 127.0.0.1:$PORT" >> $OBJ/ssh_config 109echo "RemoteForward ${base}02 127.0.0.1:${base}01" >> $OBJ/ssh_config 110for p in 1 2; do 111 trace "config file: start forwarding, fork to background" 112 ${SSH} -$p -F $OBJ/ssh_config -f somehost sleep 10 113 114 trace "config file: transfer over forwarded channels and check result" 115 ${SSH} -F $OBJ/ssh_config -p${base}02 -o 'ConnectionAttempts=4' \ 116 somehost cat ${DATA} > ${COPY} 117 test -f ${COPY} || fail "failed copy of ${DATA}" 118 cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" 119 120 wait 121done 122