crypto/openssh/regress/forwarding.sh

   1 #       $OpenBSD: forwarding.sh,v 1.16 2016/04/14 23:57:17 djm Exp $
   2 #       Placed in the Public Domain.
   3
   4 tid="local and remote forwarding"
   5
   6 DATA=/bin/ls${EXEEXT}
   7
   8 start_sshd
   9
  10 base=33
  11 last=$PORT
  12 fwd=""
  13 CTL=$OBJ/ctl-sock
  14 rm -f $CTL
  15
  16 for j in 0 1 2; do
  17         for i in 0 1 2; do
  18                 a=$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
  25 done
  26 for 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
  41 done
  42
  43 for p in ${SSH_PROTOCOLS}; do
  44 for d in L R; do
  45         trace "exit on -$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 ${base}01:localhost:$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
  70 done
  71 done
  72
  73 for 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
 102 done
 103
 104 for 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
 112 done
 113
 114 echo "LocalForward ${base}01 127.0.0.1:$PORT" >> $OBJ/ssh_config
 115 echo "RemoteForward ${base}02 127.0.0.1:${base}01" >> $OBJ/ssh_config
 116 for 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
 127 done
 128
 129 for 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
 143 done