diff options
Diffstat (limited to 'crypto/openssh/regress/forward-control.sh')
| -rwxr-xr-x | crypto/openssh/regress/forward-control.sh | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/crypto/openssh/regress/forward-control.sh b/crypto/openssh/regress/forward-control.sh new file mode 100755 index 0000000..80ddb41 --- /dev/null +++ b/crypto/openssh/regress/forward-control.sh @@ -0,0 +1,168 @@ +# $OpenBSD: forward-control.sh,v 1.1 2012/12/02 20:47:48 djm Exp $ +# Placed in the Public Domain. + +tid="sshd control of local and remote forwarding" + +LFWD_PORT=3320 +RFWD_PORT=3321 +CTL=$OBJ/ctl-sock +READY=$OBJ/ready + +wait_for_file_to_appear() { + _path=$1 + _n=0 + while test ! -f $_path ; do + test $_n -eq 1 && trace "waiting for $_path to appear" + _n=`expr $_n + 1` + test $_n -ge 20 && return 1 + sleep 1 + done + return 0 +} + +wait_for_process_to_exit() { + _pid=$1 + _n=0 + while kill -0 $_pid 2>/dev/null ; do + test $_n -eq 1 && trace "waiting for $_pid to exit" + _n=`expr $_n + 1` + test $_n -ge 20 && return 1 + sleep 1 + done + return 0 +} + +# usage: check_lfwd protocol Y|N message +check_lfwd() { + _proto=$1 + _expected=$2 + _message=$3 + rm -f $READY + ${SSH} -oProtocol=$_proto -F $OBJ/ssh_proxy \ + -L$LFWD_PORT:127.0.0.1:$PORT \ + -o ExitOnForwardFailure=yes \ + -n host exec sh -c \'"sleep 60 & echo \$! > $READY ; wait "\' \ + >/dev/null 2>&1 & + _sshpid=$! + wait_for_file_to_appear $READY || \ + fatal "check_lfwd ssh fail: $_message" + ${SSH} -F $OBJ/ssh_config -p $LFWD_PORT \ + -oConnectionAttempts=4 host true >/dev/null 2>&1 + _result=$? + kill $_sshpid `cat $READY` 2>/dev/null + wait_for_process_to_exit $_sshpid + if test "x$_expected" = "xY" -a $_result -ne 0 ; then + fail "check_lfwd failed (expecting success): $_message" + elif test "x$_expected" = "xN" -a $_result -eq 0 ; then + fail "check_lfwd succeeded (expecting failure): $_message" + elif test "x$_expected" != "xY" -a "x$_expected" != "xN" ; then + fatal "check_lfwd invalid argument \"$_expected\"" + else + verbose "check_lfwd done (expecting $_expected): $_message" + fi +} + +# usage: check_rfwd protocol Y|N message +check_rfwd() { + _proto=$1 + _expected=$2 + _message=$3 + rm -f $READY + ${SSH} -oProtocol=$_proto -F $OBJ/ssh_proxy \ + -R$RFWD_PORT:127.0.0.1:$PORT \ + -o ExitOnForwardFailure=yes \ + -n host exec sh -c \'"sleep 60 & echo \$! > $READY ; wait "\' \ + >/dev/null 2>&1 & + _sshpid=$! + wait_for_file_to_appear $READY + _result=$? + if test $_result -eq 0 ; then + ${SSH} -F $OBJ/ssh_config -p $RFWD_PORT \ + -oConnectionAttempts=4 host true >/dev/null 2>&1 + _result=$? + kill $_sshpid `cat $READY` 2>/dev/null + wait_for_process_to_exit $_sshpid + fi + if test "x$_expected" = "xY" -a $_result -ne 0 ; then + fail "check_rfwd failed (expecting success): $_message" + elif test "x$_expected" = "xN" -a $_result -eq 0 ; then + fail "check_rfwd succeeded (expecting failure): $_message" + elif test "x$_expected" != "xY" -a "x$_expected" != "xN" ; then + fatal "check_rfwd invalid argument \"$_expected\"" + else + verbose "check_rfwd done (expecting $_expected): $_message" + fi +} + +start_sshd +cp ${OBJ}/sshd_proxy ${OBJ}/sshd_proxy.bak +cp ${OBJ}/authorized_keys_${USER} ${OBJ}/authorized_keys_${USER}.bak + +# Sanity check: ensure the default config allows forwarding +for p in 1 2 ; do + check_lfwd $p Y "proto $p, default configuration" + check_rfwd $p Y "proto $p, default configuration" +done + +# Usage: all_tests yes|local|remote|no Y|N Y|N Y|N Y|N Y|N Y|N +all_tests() { + _tcpfwd=$1 + _plain_lfwd=$2 + _plain_rfwd=$3 + _nopermit_lfwd=$4 + _nopermit_rfwd=$5 + _permit_lfwd=$6 + _permit_rfwd=$7 + _badfwd=127.0.0.1:22 + _goodfwd=127.0.0.1:${PORT} + for _proto in 1 2 ; do + cp ${OBJ}/authorized_keys_${USER}.bak \ + ${OBJ}/authorized_keys_${USER} + _prefix="proto $_proto, AllowTcpForwarding=$_tcpfwd" + # No PermitOpen + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_plain_lfwd "$_prefix" + check_rfwd $_proto $_plain_rfwd "$_prefix" + # PermitOpen via sshd_config that doesn't match + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ; + echo "PermitOpen $_badfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_nopermit_lfwd "$_prefix, !PermitOpen" + check_rfwd $_proto $_nopermit_rfwd "$_prefix, !PermitOpen" + # PermitOpen via sshd_config that does match + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ; + echo "PermitOpen $_badfwd $_goodfwd" ) \ + > ${OBJ}/sshd_proxy + # NB. permitopen via authorized_keys should have same + # success/fail as via sshd_config + # permitopen via authorized_keys that doesn't match + sed "s/^/permitopen=\"$_badfwd\" /" \ + < ${OBJ}/authorized_keys_${USER}.bak \ + > ${OBJ}/authorized_keys_${USER} || fatal "sed 1 fail" + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_nopermit_lfwd "$_prefix, !permitopen" + check_rfwd $_proto $_nopermit_rfwd "$_prefix, !permitopen" + # permitopen via authorized_keys that does match + sed "s/^/permitopen=\"$_badfwd\",permitopen=\"$_goodfwd\" /" \ + < ${OBJ}/authorized_keys_${USER}.bak \ + > ${OBJ}/authorized_keys_${USER} || fatal "sed 2 fail" + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_permit_lfwd "$_prefix, permitopen" + check_rfwd $_proto $_permit_rfwd "$_prefix, permitopen" + done +} + +# no-permitopen mismatch-permitopen match-permitopen +# AllowTcpForwarding local remote local remote local remote +all_tests yes Y Y N Y Y Y +all_tests local Y N N N Y N +all_tests remote N Y N Y N Y +all_tests no N N N N N N |
