regress/forwarding.sh

   1 #       $OpenBSD: forwarding.sh,v 1.7 2010/01/11 02:53:44 dtucker Exp $
   2 #       Placed in the Public Domain.
   3
   4 tid="local and remote forwarding"
   5 DATA=/bin/ls${EXEEXT}
   6
   7 start_sshd
   8
   9 base=33
  10 last=$PORT
  11 fwd=""
  12 for j in 0 1 2; do
  13         for i in 0 1 2; do
  14                 a=$base$j$i
  15                 b=`expr $a + 50`
  16                 c=$last
  17                 # fwd chain: $a -> $b -> $c
  18                 fwd="$fwd -L$a:127.0.0.1:$b -R$b:127.0.0.1:$c"
  19                 last=$a
  20         done
  21 done
  22 for p in 1 2; do
  23         q=`expr 3 - $p`
  24         trace "start forwarding, fork to background"
  25         ${SSH} -$p -F $OBJ/ssh_config -f $fwd somehost sleep 10
  26
  27         trace "transfer over forwarded channels and check result"
  28         ${SSH} -$q -F $OBJ/ssh_config -p$last -o 'ConnectionAttempts=4' \
  29                 somehost cat $DATA > $OBJ/ls.copy
  30         test -f $OBJ/ls.copy                    || fail "failed copy $DATA"
  31         cmp $DATA $OBJ/ls.copy                  || fail "corrupted copy of $DATA"
  32
  33         sleep 10
  34 done
  35
  36 for p in 1 2; do
  37 for d in L R; do
  38         trace "exit on -$d forward failure, proto $p"
  39
  40         # this one should succeed
  41         ${SSH} -$p -F $OBJ/ssh_config \
  42             -$d ${base}01:127.0.0.1:$PORT \
  43             -$d ${base}02:127.0.0.1:$PORT \
  44             -$d ${base}03:127.0.0.1:$PORT \
  45             -$d ${base}04:127.0.0.1:$PORT \
  46             -oExitOnForwardFailure=yes somehost true
  47         if [ $? != 0 ]; then
  48                 fail "connection failed, should not"
  49         else
  50                 # this one should fail
  51                 ${SSH} -q -$p -F $OBJ/ssh_config \
  52                     -$d ${base}01:127.0.0.1:$PORT \
  53                     -$d ${base}02:127.0.0.1:$PORT \
  54                     -$d ${base}03:127.0.0.1:$PORT \
  55                     -$d ${base}01:127.0.0.1:$PORT \
  56                     -$d ${base}04:127.0.0.1:$PORT \
  57                     -oExitOnForwardFailure=yes somehost true
  58                 r=$?
  59                 if [ $r != 255 ]; then
  60                         fail "connection not termintated, but should ($r)"
  61                 fi
  62         fi
  63 done
  64 done
  65
  66 for p in 1 2; do
  67         trace "simple clear forwarding proto $p"
  68         ${SSH} -$p -F $OBJ/ssh_config -oClearAllForwardings=yes somehost true
  69
  70         trace "clear local forward proto $p"
  71         ${SSH} -$p -f -F $OBJ/ssh_config -L ${base}01:127.0.0.1:$PORT \
  72             -oClearAllForwardings=yes somehost sleep 10
  73         if [ $? != 0 ]; then
  74                 fail "connection failed with cleared local forwarding"
  75         else
  76                 # this one should fail
  77                 ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \
  78                      2>${TEST_SSH_LOGFILE} && \
  79                         fail "local forwarding not cleared"
  80         fi
  81         sleep 10
  82
  83         trace "clear remote forward proto $p"
  84         ${SSH} -$p -f -F $OBJ/ssh_config -R ${base}01:127.0.0.1:$PORT \
  85             -oClearAllForwardings=yes somehost sleep 10
  86         if [ $? != 0 ]; then
  87                 fail "connection failed with cleared remote forwarding"
  88         else
  89                 # this one should fail
  90                 ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \
  91                      2>${TEST_SSH_LOGFILE} && \
  92                         fail "remote forwarding not cleared"
  93         fi
  94         sleep 10
  95 done
  96
  97 for p in 2; do
  98         trace "stdio forwarding proto $p"
  99         cmd="${SSH} -$p -F $OBJ/ssh_config"
 100         $cmd -o "ProxyCommand $cmd -q -W localhost:$PORT somehost" \
 101                 somehost true
 102         if [ $? != 0 ]; then
 103                 fail "stdio forwarding proto $p"
 104         fi
 105 done