regress/dynamic-forward.sh

   1 #       $OpenBSD: dynamic-forward.sh,v 1.9 2011/06/03 00:29:52 dtucker Exp $
   2 #       Placed in the Public Domain.
   3
   4 tid="dynamic forwarding"
   5
   6 FWDPORT=`expr $PORT + 1`
   7
   8 DATA=/bin/ls${EXEEXT}
   9
  10 if have_prog nc && nc -h 2>&1 | grep "proxy address" >/dev/null; then
  11         proxycmd="nc -x 127.0.0.1:$FWDPORT -X"
  12 elif have_prog connect; then
  13         proxycmd="connect -S 127.0.0.1:$FWDPORT -"
  14 else
  15         echo "skipped (no suitable ProxyCommand found)"
  16         exit 0
  17 fi
  18 trace "will use ProxyCommand $proxycmd"
  19
  20 start_sshd
  21
  22 for p in 1 2; do
  23         n=0
  24         error="1"
  25         trace "start dynamic forwarding, fork to background"
  26         while [ "$error" -ne 0 -a "$n" -lt 3 ]; do
  27                 n=`expr $n + 1`
  28                 ${SSH} -$p -F $OBJ/ssh_config -f -D $FWDPORT -q \
  29                     -oExitOnForwardFailure=yes somehost exec sh -c \
  30                         \'"echo \$\$ > $OBJ/remote_pid; exec sleep 444"\'
  31                 error=$?
  32                 if [ "$error" -ne 0 ]; then
  33                         trace "forward failed proto $p attempt $n err $error"
  34                         sleep $n
  35                 fi
  36         done
  37         if [ "$error" -ne 0 ]; then
  38                 fatal "failed to start dynamic forwarding proto $p"
  39         fi
  40
  41         for s in 4 5; do
  42             for h in 127.0.0.1 localhost; do
  43                 trace "testing ssh protocol $p socks version $s host $h"
  44                 ${SSH} -F $OBJ/ssh_config \
  45                         -o "ProxyCommand ${proxycmd}${s} $h $PORT" \
  46                         somehost cat $DATA > $OBJ/ls.copy
  47                 test -f $OBJ/ls.copy     || fail "failed copy $DATA"
  48                 cmp $DATA $OBJ/ls.copy || fail "corrupted copy of $DATA"
  49             done
  50         done
  51
  52         if [ -f $OBJ/remote_pid ]; then
  53                 remote=`cat $OBJ/remote_pid`
  54                 trace "terminate remote shell, pid $remote"
  55                 if [ $remote -gt 1 ]; then
  56                         kill -HUP $remote
  57                 fi
  58         else
  59                 fail "no pid file: $OBJ/remote_pid"
  60         fi
  61 done