1# $OpenBSD: forwarding.sh,v 1.15 2015/03/03 22:35:19 markus 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="" 13CTL=$OBJ/ctl-sock 14rm -f $CTL 15 16for j in 0 1 2; do 17 for i in 0 1 2; do 18 a=$base$j$i 19 b=`expr $a + 50` 20 c=$last 21 # fwd chain: $a -> $b -> $c 22 fwd="$fwd -L$a:127.0.0.1:$b -R$b:127.0.0.1:$c" 23 last=$a 24 done 25done 26for p in ${SSH_PROTOCOLS}; do 27 q=`expr 3 - $p` 28 if ! ssh_version $q; then 29 q=$p 30 fi 31 trace "start forwarding, fork to background" 32 ${SSH} -$p -F $OBJ/ssh_config -f $fwd somehost sleep 10 33 34 trace "transfer over forwarded channels and check result" 35 ${SSH} -$q -F $OBJ/ssh_config -p$last -o 'ConnectionAttempts=4' \ 36 somehost cat ${DATA} > ${COPY} 37 test -s ${COPY} || fail "failed copy of ${DATA}" 38 cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" 39 40 sleep 10 41done 42 43for p in ${SSH_PROTOCOLS}; do 44for d in L R; do 45 trace "exit on -$d forward failure, proto $p" 46 47 # this one should succeed 48 ${SSH} -$p -F $OBJ/ssh_config \ 49 -$d ${base}01:127.0.0.1:$PORT \ 50 -$d ${base}02:127.0.0.1:$PORT \ 51 -$d ${base}03:127.0.0.1:$PORT \ 52 -$d ${base}04:127.0.0.1:$PORT \ 53 -oExitOnForwardFailure=yes somehost true 54 if [ $? != 0 ]; then 55 fail "connection failed, should not" 56 else 57 # this one should fail 58 ${SSH} -q -$p -F $OBJ/ssh_config \ 59 -$d ${base}01:127.0.0.1:$PORT \ 60 -$d ${base}02:127.0.0.1:$PORT \ 61 -$d ${base}03:127.0.0.1:$PORT \ 62 -$d ${base}01:127.0.0.1:$PORT \ 63 -$d ${base}04:127.0.0.1:$PORT \ 64 -oExitOnForwardFailure=yes somehost true 65 r=$? 66 if [ $r != 255 ]; then 67 fail "connection not termintated, but should ($r)" 68 fi 69 fi 70done 71done 72 73for p in ${SSH_PROTOCOLS}; do 74 trace "simple clear forwarding proto $p" 75 ${SSH} -$p -F $OBJ/ssh_config -oClearAllForwardings=yes somehost true 76 77 trace "clear local forward proto $p" 78 ${SSH} -$p -f -F $OBJ/ssh_config -L ${base}01:127.0.0.1:$PORT \ 79 -oClearAllForwardings=yes somehost sleep 10 80 if [ $? != 0 ]; then 81 fail "connection failed with cleared local forwarding" 82 else 83 # this one should fail 84 ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \ 85 >>$TEST_REGRESS_LOGFILE 2>&1 && \ 86 fail "local forwarding not cleared" 87 fi 88 sleep 10 89 90 trace "clear remote forward proto $p" 91 ${SSH} -$p -f -F $OBJ/ssh_config -R ${base}01:127.0.0.1:$PORT \ 92 -oClearAllForwardings=yes somehost sleep 10 93 if [ $? != 0 ]; then 94 fail "connection failed with cleared remote forwarding" 95 else 96 # this one should fail 97 ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \ 98 >>$TEST_REGRESS_LOGFILE 2>&1 && \ 99 fail "remote forwarding not cleared" 100 fi 101 sleep 10 102done 103 104for p in 2; do 105 trace "stdio forwarding proto $p" 106 cmd="${SSH} -$p -F $OBJ/ssh_config" 107 $cmd -o "ProxyCommand $cmd -q -W localhost:$PORT somehost" \ 108 somehost true 109 if [ $? != 0 ]; then 110 fail "stdio forwarding proto $p" 111 fi 112done 113 114echo "LocalForward ${base}01 127.0.0.1:$PORT" >> $OBJ/ssh_config 115echo "RemoteForward ${base}02 127.0.0.1:${base}01" >> $OBJ/ssh_config 116for p in ${SSH_PROTOCOLS}; do 117 trace "config file: start forwarding, fork to background" 118 ${SSH} -S $CTL -M -$p -F $OBJ/ssh_config -f somehost sleep 10 119 120 trace "config file: transfer over forwarded channels and check result" 121 ${SSH} -F $OBJ/ssh_config -p${base}02 -o 'ConnectionAttempts=4' \ 122 somehost cat ${DATA} > ${COPY} 123 test -s ${COPY} || fail "failed copy of ${DATA}" 124 cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" 125 126 ${SSH} -S $CTL -O exit somehost 127done 128 129for p in 2; do 130 trace "transfer over chained unix domain socket forwards and check result" 131 rm -f $OBJ/unix-[123].fwd 132 ${SSH} -f -F $OBJ/ssh_config -R${base}01:[$OBJ/unix-1.fwd] somehost sleep 10 133 ${SSH} -f -F $OBJ/ssh_config -L[$OBJ/unix-1.fwd]:[$OBJ/unix-2.fwd] somehost sleep 10 134 ${SSH} -f -F $OBJ/ssh_config -R[$OBJ/unix-2.fwd]:[$OBJ/unix-3.fwd] somehost sleep 10 135 ${SSH} -f -F $OBJ/ssh_config -L[$OBJ/unix-3.fwd]:127.0.0.1:$PORT somehost sleep 10 136 ${SSH} -F $OBJ/ssh_config -p${base}01 -o 'ConnectionAttempts=4' \ 137 somehost cat ${DATA} > ${COPY} 138 test -s ${COPY} || fail "failed copy ${DATA}" 139 cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" 140 141 #wait 142 sleep 10 143done 144