162 lines
5.4 KiB
Bash
Executable file
162 lines
5.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Netconf callhome RFC 8071
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# Magic line must be first in script (see README.md)
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s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi
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# Skip it if no openssh
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if ! [ -x "$(command -v ssh)" ]; then
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echo "...ssh not installed"
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if [ "$s" = $0 ]; then exit 0; else return 0; fi # skip
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fi
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# Dont run this test with valgrind
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if [ $valgrindtest -ne 0 ]; then
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echo "...skipped "
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return 0 # skip
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fi
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: ${clixon_netconf_ssh_callhome:="clixon_netconf_ssh_callhome"}
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: ${clixon_netconf_ssh_callhome_client:="clixon_netconf_ssh_callhome_client"}
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APPNAME=example
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cfg=$dir/conf_yang.xml
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fyang=$dir/clixon-example.yang
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sshcfg=$dir/ssh.conf
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sshdcfg=$dir/sshd.conf
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rpccmd=$dir/rpccmd.xml
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keydir=$dir/keydir
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test -d $keydir || mkdir $keydir
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chmod 700 $keydir
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key=$keydir/mykey
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# XXX cant get it to work with this file under tmp dir so have to place it in homedir
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authfile=$HOME/.ssh/clixon_authorized_keys_removeme
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cat <<EOF > $cfg
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<clixon-config xmlns="http://clicon.org/config">
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<CLICON_CONFIGFILE>$cfg</CLICON_CONFIGFILE>
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<CLICON_MODULE_SET_ID>42</CLICON_MODULE_SET_ID>
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<CLICON_YANG_DIR>${YANG_INSTALLDIR}</CLICON_YANG_DIR>
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<CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
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<CLICON_CLISPEC_DIR>/usr/local/lib/$APPNAME/clispec</CLICON_CLISPEC_DIR>
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<CLICON_BACKEND_DIR>/usr/local/lib/$APPNAME/backend</CLICON_BACKEND_DIR>
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<CLICON_BACKEND_REGEXP>example_backend.so$</CLICON_BACKEND_REGEXP>
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<CLICON_NETCONF_DIR>/usr/local/lib/$APPNAME/netconf</CLICON_NETCONF_DIR>
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<CLICON_SOCK>$dir/$APPNAME.sock</CLICON_SOCK>
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<CLICON_BACKEND_PIDFILE>/usr/local/var/$APPNAME/$APPNAME.pidfile</CLICON_BACKEND_PIDFILE>
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<CLICON_XMLDB_DIR>/usr/local/var/$APPNAME</CLICON_XMLDB_DIR>
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</clixon-config>
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EOF
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cat <<EOF > $fyang
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module clixon-example{
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yang-version 1.1;
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namespace "urn:example:clixon";
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prefix ex;
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}
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EOF
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cat <<EOF > $rpccmd
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$DEFAULTHELLO
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<rpc $DEFAULTNS>
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<get-config>
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<source><candidate/></source>
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</get-config>
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</rpc>]]>]]>
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<rpc $DEFAULTNS>
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<close-session/>
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</rpc>]]>]]>
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EOF
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# Generate temporary ssh keys without passphrase
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# This is to avoid being prompt for password or passhrase
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rm -f $key $key.pub
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ssh-keygen -q -f $key -b 256 -t ed25519 -N "" -C "Clixon test temporary key"
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cp $key.pub $authfile
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# Make the callback after a sleep in separate thread simulating the server
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# The result is not checked, only the client-side
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function callhomefn()
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{
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cat<<EOF>$sshdcfg
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PasswordAuthentication no
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AuthorizedKeysFile $authfile
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EOF
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sleep 1 # There may be a far-fetched race condition here if this is too early
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new "Start Callhome in background"
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# sudo does not look in /usr/local/bin on eg cento8
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cmd=$(which ${clixon_netconf_ssh_callhome})
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echo "sudo ${cmd} -D 1 -a 127.0.0.1 -C $sshdcfg -c $cfg"
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expectpart "$(sudo ${cmd} -D 1 -a 127.0.0.1 -C $sshdcfg -c $cfg)" 255 ""
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rm -f $authfile
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}
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new "test params: -f $cfg"
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# Bring your own backend
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if [ $BE -ne 0 ]; then
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# kill old backend (if any)
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new "kill old backend"
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sudo clixon_backend -zf $cfg
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if [ $? -ne 0 ]; then
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err
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fi
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new "start backend -s init -f $cfg"
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start_backend -s init -f $cfg
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fi
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new "wait backend"
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wait_backend
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# Start callhome server-side in background thread
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callhomefn &
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# Choose unhashed host key
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# See rfc8071 Sec 3.1
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# C5 As part of establishing an SSH or TLS connection, the NETCONF/
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# RESTCONF client MUST validate the server's presented host key or
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# certificate. This validation MAY be accomplished by certificate
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# path validation or by comparing the host key or certificate to a
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# previously trusted or "pinned" value. If a certificate is
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# presented and it contains revocation-checking information, the
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# NETCONF/RESTCONF client SHOULD check the revocation status of the
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# certificate. If it is determined that a certificate has been
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# revoked, the client MUST immediately close the connection.
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cat<<EOF > $dir/knownhosts
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. $(cat /etc/ssh/ssh_host_ed25519_key.pub)
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. $(cat /etc/ssh/ssh_host_ecdsa_key.pub)
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EOF
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cat<<EOF > $sshcfg
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StrictHostKeyChecking yes
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UserKnownHostsFile $dir/knownhosts
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HashKnownHosts no
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EOF
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new "Start Listener client"
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echo "ssh -s -F $sshcfg -v -i $key -o ProxyUseFdpass=yes -o ProxyCommand=\"clixon_netconf_ssh_callhome_client -a 127.0.0.1\" . netconf"
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#-F $sshcfg
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expectpart "$(ssh -s -F $sshcfg -v -i $key -o ProxyUseFdpass=yes -o ProxyCommand="${clixon_netconf_ssh_callhome_client} -a 127.0.0.1" . netconf < $rpccmd)" 0 "<hello $DEFAULTNS><capabilities><capability>urn:ietf:params:netconf:base:1.0</capability><capability>urn:ietf:params:netconf:capability:yang-library:1.0?revision=2019-01-04&module-set-id=42</capability><capability>urn:ietf:params:netconf:capability:candidate:1.0</capability><capability>urn:ietf:params:netconf:capability:validate:1.1</capability><capability>urn:ietf:params:netconf:capability:startup:1.0</capability><capability>urn:ietf:params:netconf:capability:xpath:1.0</capability><capability>urn:ietf:params:netconf:capability:notification:1.0</capability></capabilities><session-id>2</session-id></hello>]]>]]>" "<rpc-reply $DEFAULTNS><data/></rpc-reply>]]>]]>"
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# Wait
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wait
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if [ $BE -ne 0 ]; then
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new "Kill backend"
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# Check if premature kill
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pid=$(pgrep -u root -f clixon_backend)
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if [ -z "$pid" ]; then
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err "backend already dead"
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fi
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# kill backend
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stop_backend -f $cfg
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fi
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new "Endtest"
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endtest
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rm -f $authfile
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rm -rf $dir
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