#!/usr/bin/env bash # Tests to ensure that the monkeysphere is working # Authors: # Daniel Kahn Gillmor <dkg@fifthhorseman.net> # Jameson Rollins <jrollins@fifthhorseman.net> # Copyright: 2008 # License: GPL v3 or later # these tests should all be able to run as a non-privileged user. # all subcommands in this script should complete without failure: set -e # piped commands should return the code of the first non-zero return set -o pipefail ## make sure that the right tools are installed to run the test. the ## test has *more* requirements than plain ol' monkeysphere: which socat || { echo "You must have socat installed to run this test." ; exit 1; } ## FIXME: other checks? # gpg command for test admin user gpgadmin() { GNUPGHOME="$TEMPDIR"/admin/.gnupg gpg "$@" } # test ssh connection # first argument is expected return code from ssh connection ssh_test() { umask 0077 CODE=${1:-0} # start the ssh daemon on the socket echo "##### starting ssh server..." socat EXEC:"/usr/sbin/sshd -f ${SSHD_CONFIG} -i -D -e" "UNIX-LISTEN:${SOCKET}" 2> "$TEMPDIR"/sshd.log & SSHD_PID="$!" # wait until the socket is created before continuing while [ ! -S "$SOCKET" ] ; do sleep 1 done set +e # make a client connection to the socket echo "##### starting ssh client..." ssh-agent bash -c \ "monkeysphere subkey-to-ssh-agent && ssh -F $TEMPDIR/testuser/.ssh/config testhost true" RETURN="$?" # kill the sshd process if it's still running kill "$SSHD_PID" SSHD_PID= set -e echo "##### return $RETURN" if [ "$RETURN" = "$CODE" ] ; then echo "##### ssh connection test returned as desired" return 0 else echo "##### ssh connection test failed. expected return code $CODE" return 1 fi } failed_cleanup() { # FIXME: can we be more verbose here? echo 'FAILED!' read -p "press enter to cleanup and remove tmp:" cleanup } get_gpg_prng_arg() { if (gpg --quick-random --version >/dev/null 2>&1) ; then echo quick-random elif (gpg --debug-quick-random --version >/dev/null 2>&1) ; then echo debug-quick-random fi } cleanup() { echo "### removing temp dir..." rm -rf "$TEMPDIR" if [ "$SSHD_PID" ] ; then echo "### killing off lingering sshd..." kill "$SSHD_PID" fi wait } SSHD_PID= ## setup trap trap failed_cleanup EXIT ### SETUP VARIABLES ## set up some variables to ensure that we're operating strictly in ## the tests, not system-wide: export TESTDIR=$(pwd) # make temp dir TEMPDIR="$TESTDIR"/tmp if [ -e "$TEMPDIR" ] ; then echo "tempdir '$TEMPDIR' already exists." exit 1 fi mkdir "$TEMPDIR" # Use the local copy of executables first, instead of system ones. # This should help us test without installing. export PATH="$TESTDIR"/../src:"$TESTDIR"/../src/keytrans:"$PATH" export MONKEYSPHERE_SYSDATADIR="$TEMPDIR" export MONKEYSPHERE_SYSCONFIGDIR="$TEMPDIR" export MONKEYSPHERE_SYSSHAREDIR="$TESTDIR"/../src export MONKEYSPHERE_MONKEYSPHERE_USER=$(whoami) export MONKEYSPHERE_CHECK_KEYSERVER=false export MONKEYSPHERE_LOG_LEVEL=DEBUG export SSHD_CONFIG="$TEMPDIR"/sshd_config export SOCKET="$TEMPDIR"/ssh-socket # Make sure $DISPLAY is set to convince ssh and monkeysphere to fall # back on $SSH_ASKPASS. Make sure it's not set to the current actual # $DISPLAY (if one exists) because this test suite should not be doing # *anything* with any running X11 session. export DISPLAY=monkeys ### CONFIGURE ENVIRONMENTS # copy in admin and testuser home to tmp echo "### copying admin and testuser homes..." cp -a "$TESTDIR"/home/admin "$TEMPDIR"/ cp -a "$TESTDIR"/home/testuser "$TEMPDIR"/ # set up environment for testuser TESTHOME="$TEMPDIR"/testuser export GNUPGHOME="$TESTHOME"/.gnupg export SSH_ASKPASS="$TESTHOME"/.ssh/askpass export MONKEYSPHERE_HOME="$TESTHOME"/.monkeysphere cat <<EOF >> "$TESTHOME"/.ssh/config UserKnownHostsFile $TESTHOME/.ssh/known_hosts IdentityFile $TESTHOME/.ssh/no-such-identity ProxyCommand $TESTHOME/.ssh/proxy-command %h %p $SOCKET EOF cat <<EOF >> "$MONKEYSPHERE_HOME"/monkeysphere.conf KNOWN_HOSTS=$TESTHOME/.ssh/known_hosts EOF get_gpg_prng_arg >> "$GNUPGHOME"/gpg.conf # set up sshd echo "### configuring sshd..." cp etc/ssh/sshd_config "$SSHD_CONFIG" # write the sshd_config cat <<EOF >> "$SSHD_CONFIG" HostKey ${MONKEYSPHERE_SYSDATADIR}/ssh_host_rsa_key AuthorizedKeysFile ${MONKEYSPHERE_SYSDATADIR}/authorized_keys/%u EOF # set up monkeysphere-server echo "### configuring monkeysphere..." mkdir -p -m 750 "$MONKEYSPHERE_SYSDATADIR"/gnupg-host mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/gnupg-authentication mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/authorized_keys mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/tmp cp etc/monkeysphere/monkeysphere-server.conf "$TEMPDIR"/monkeysphere-server.conf cat <<EOF >> "$TEMPDIR"/monkeysphere-server.conf AUTHORIZED_USER_IDS="$MONKEYSPHERE_HOME/authorized_user_ids" EOF cat <<EOF > "$MONKEYSPHERE_SYSDATADIR"/gnupg-authentication/gpg.conf primary-keyring ${MONKEYSPHERE_SYSDATADIR}/gnupg-authentication/pubring.gpg keyring ${MONKEYSPHERE_SYSDATADIR}/gnupg-host/pubring.gpg EOF ### SERVER TESTS # create a new host key echo "### generating server key..." # add gpg.conf with quick-random get_gpg_prng_arg >> "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf echo | monkeysphere-server gen-key --length 1024 --expire 0 testhost # remove the gpg.conf rm "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf HOSTKEYID=$( monkeysphere-server show-key | grep '^OpenPGP fingerprint: ' | cut -f3 -d\ ) # certify it with the "Admin's Key". # (this would normally be done via keyservers) echo "### certifying server key..." monkeysphere-server gpg-authentication-cmd "--armor --export $HOSTKEYID" | gpgadmin --import echo y | gpgadmin --command-fd 0 --sign-key "$HOSTKEYID" # FIXME: how can we test publish-key without flooding junk into the # keyservers? # add admin as identity certifier for testhost echo "### adding admin as certifier..." echo y | monkeysphere-server add-identity-certifier "$TEMPDIR"/admin/.gnupg/pubkey.gpg ### TESTUSER TESTS # generate an auth subkey for the test user that expires in 2 days echo "### generating key for testuser..." monkeysphere gen-subkey --expire 2 # add server key to testuser keychain echo "### export server key to testuser..." gpgadmin --armor --export "$HOSTKEYID" | gpg --import # teach the "server" about the testuser's key echo "### export testuser key to server..." gpg --export testuser | monkeysphere-server gpg-authentication-cmd --import echo "### update server authorized_keys file for this testuser..." monkeysphere-server update-users $(whoami) # connect to test sshd, using monkeysphere-ssh-proxycommand to verify # the identity before connection. This should work in both directions! echo "### ssh connection test for success..." ssh_test # remove the testuser's authorized_user_ids file, update, and make # sure that the ssh authentication FAILS echo "### removing testuser authorized_user_ids and updating..." mv "$TESTHOME"/.monkeysphere/authorized_user_ids{,.bak} monkeysphere-server update-users $(whoami) echo "### ssh connection test for server authentication denial..." ssh_test 255 mv "$TESTHOME"/.monkeysphere/authorized_user_ids{.bak,} # put improper permissions on authorized_user_ids file, update, and # make sure ssh authentication FAILS echo "### setting group writability on authorized_user_ids and updating..." chmod g+w "$TESTHOME"/.monkeysphere/authorized_user_ids monkeysphere-server update-users $(whoami) echo "### ssh connection test for server authentication denial..." ssh_test 255 chmod g-w "$TESTHOME"/.monkeysphere/authorized_user_ids echo "### setting other writability on authorized_user_ids and updating..." chmod o+w "$TESTHOME"/.monkeysphere/authorized_user_ids monkeysphere-server update-users $(whoami) echo "### ssh connection test for server authentication denial..." ssh_test 255 chmod o-w "$TESTHOME"/.monkeysphere/authorized_user_ids trap - EXIT echo echo "Monkeysphere basic tests completed successfully!" echo cleanup