Add audit and apply methods for 6.19: ensure time sync server(ntp or chrony) is installed.

bin/hardening/6.19_ensure_time_sync_server_is_installed.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+#
+# harbian audit 9  Hardening
+#
+
+#
+# 6.19 Ensure time synchronization server is installed ( Not Scored)
+# Authors : Samson wen, Samson <sccxboy@gmail.com>
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+HARDENING_LEVEL=3
+PACKAGES='ntp chrony'
+PACKAGES_COUNT=$(echo $PACKAGES | wc -w)
+
+# This function will be called if the script status is on enabled / audit mode
+audit () {
+    for PACKAGE in $PACKAGES; do 
+        is_pkg_installed $PACKAGE
+        if [ $FNRET != 0 ]; then
+            warn "$PACKAGE is absent"
+        else
+            ok "$PACKAGE is installed"
+	        exit $FNRET
+        fi
+    done
+    crit "$PACKAGES is absent"
+}
+
+# This function will be called if the script status is on enabled mode
+apply () {
+    for PACKAGE in $PACKAGES; do 
+        is_pkg_installed $PACKAGE
+        if [ $FNRET != 0 ]; then
+            warn "$PACKAGE is absent, install..."
+            apt-get install -y $PACKAGE
+	        exit $FNRET
+        else
+            ok "$PACKAGE is installed,"
+	        exit $FNRET
+        fi
+    done
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    . /etc/default/cis-hardening
+fi
+if [ -z "$CIS_ROOT_DIR" ]; then
+     echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
+     echo "Cannot source CIS_ROOT_DIR variable, aborting."
+    exit 128
+fi
+
+# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
+if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
+    . $CIS_ROOT_DIR/lib/main.sh
+else
+    echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
+    exit 128
+fi