crypto/openssh/regress/key-options.sh

   1 #       $OpenBSD: key-options.sh,v 1.8 2018/03/14 05:35:40 djm Exp $
   2 #       Placed in the Public Domain.
   3
   4 tid="key options"
   5
   6 origkeys="$OBJ/authkeys_orig"
   7 authkeys="$OBJ/authorized_keys_${USER}"
   8 cp $authkeys $origkeys
   9
  10 # Test command= forced command
  11 for c in 'command="echo bar"' 'no-pty,command="echo bar"'; do
  12         sed "s/.*/$c &/" $origkeys >$authkeys
  13         verbose "key option $c"
  14         r=`${SSH} -q -F $OBJ/ssh_proxy somehost echo foo`
  15         if [ "$r" = "foo" ]; then
  16                 fail "key option forced command not restricted"
  17         fi
  18         if [ "$r" != "bar" ]; then
  19                 fail "key option forced command not executed"
  20         fi
  21 done
  22
  23 # Test no-pty
  24 expect_pty_succeed() {
  25         which=$1
  26         opts=$2
  27         rm -f $OBJ/data
  28         sed "s/.*/$opts &/" $origkeys >$authkeys
  29         verbose "key option pty $which"
  30         ${SSH} -ttq -F $OBJ/ssh_proxy somehost "tty > $OBJ/data; exit 0"
  31         if [ $? -ne 0 ] ; then
  32                 fail "key option failed $which"
  33         else
  34                 r=`cat $OBJ/data`
  35                 case "$r" in
  36                 /dev/*) ;;
  37                 *)      fail "key option failed $which (pty $r)" ;;
  38                 esac
  39         fi
  40 }
  41 expect_pty_fail() {
  42         which=$1
  43         opts=$2
  44         rm -f $OBJ/data
  45         sed "s/.*/$opts &/" $origkeys >$authkeys
  46         verbose "key option pty $which"
  47         ${SSH} -ttq -F $OBJ/ssh_proxy somehost "tty > $OBJ/data; exit 0"
  48         if [ $? -eq 0 ]; then
  49                 r=`cat $OBJ/data`
  50                 if [ -e "$r" ]; then
  51                         fail "key option failed $which (pty $r)"
  52                 fi
  53                 case "$r" in
  54                 /dev/*) fail "key option failed $which (pty $r)" ;;
  55                 *)      ;;
  56                 esac
  57         fi
  58 }
  59 # First ensure that we can allocate a pty by default.
  60 expect_pty_succeed "default" ""
  61 expect_pty_fail "no-pty" "no-pty"
  62 expect_pty_fail "restrict" "restrict"
  63 expect_pty_succeed "restrict,pty" "restrict,pty"
  64
  65 # Test environment=
  66 echo 'PermitUserEnvironment yes' >> $OBJ/sshd_proxy
  67 sed 's/.*/environment="FOO=bar" &/' $origkeys >$authkeys
  68 verbose "key option environment"
  69 r=`${SSH} -q -F $OBJ/ssh_proxy somehost 'echo $FOO'`
  70 if [ "$r" != "bar" ]; then
  71         fail "key option environment not set"
  72 fi
  73
  74 # Test from= restriction
  75 start_sshd
  76 for f in 127.0.0.1 '127.0.0.0\/8'; do
  77         cat  $origkeys >$authkeys
  78         ${SSH} -q -F $OBJ/ssh_proxy somehost true
  79         if [ $? -ne 0 ]; then
  80                 fail "key option failed without restriction"
  81         fi
  82
  83         sed 's/.*/from="'"$f"'" &/' $origkeys >$authkeys
  84         from=`head -1 $authkeys | cut -f1 -d ' '`
  85         verbose "key option $from"
  86         r=`${SSH} -q -F $OBJ/ssh_proxy somehost 'echo true'`
  87         if [ "$r" = "true" ]; then
  88                 fail "key option $from not restricted"
  89         fi
  90
  91         r=`${SSH} -q -F $OBJ/ssh_config somehost 'echo true'`
  92         if [ "$r" != "true" ]; then
  93                 fail "key option $from not allowed but should be"
  94         fi
  95 done
  96
  97 check_valid_before() {
  98         which=$1
  99         opts=$2
 100         expect=$3
 101         sed "s/.*/$opts &/" $origkeys >$authkeys
 102         verbose "key option expiry-time $which"
 103         ${SSH} -q -F $OBJ/ssh_proxy somehost true
 104         r=$?
 105         case "$expect" in
 106         fail)   test $r -eq 0 && fail "key option succeeded $which" ;;
 107         pass)   test $r -ne 0 && fail "key option failed $which" ;;
 108         *)      fatal "unknown expectation $expect" ;;
 109         esac
 110 }
 111 check_valid_before "default"    ""                              "pass"
 112 check_valid_before "invalid"    'expiry-time="INVALID"'         "fail"
 113 check_valid_before "expired"    'expiry-time="19990101"'        "fail"
 114 check_valid_before "valid"      'expiry-time="20380101"'        "pass"
 115