new upstream release (3.3.0); modify package compatibility for Stretch

[ossec-hids.git] / src / init / update.sh

diff --git a/src/init/update.sh b/src/init/update.sh
index a822f3a..65d1691 100755 (executable)
--- a/src/init/update.sh
+++ b/src/init/update.sh
@@ -1,22 +1,17 @@
 #!/bin/sh
 # Shell script update functions for the OSSEC HIDS
 # Author: Daniel B. Cid <daniel.cid@gmail.com>
-# Last modification: May 24, 2006
-
 
 FALSE="false"
 TRUE="true"
 
-
-##########
-# isUpdate
-##########
 isUpdate()
 {
     ls -la ${OSSEC_INIT} > /dev/null 2>&1
     if [ $? = 0 ]; then
         . ${OSSEC_INIT}
         if [ "X$DIRECTORY" = "X" ]; then
+            echo "# ($FUNCNAME) ERROR: The variable DIRECTORY wasn't set" 1>&2
             echo "${FALSE}"
             return 1;
         fi
@@ -24,39 +19,32 @@ isUpdate()
         if [ $? = 0 ]; then
             echo "${TRUE}"
             return 0;
-        fi    
+        fi
     fi
-    
     echo "${FALSE}"
-    return 1;    
+    return 1;
 }
 
-
-##########
-# doUpdatecleanup 
-##########
 doUpdatecleanup()
 {
     . ${OSSEC_INIT}
 
     if [ "X$DIRECTORY" = "X" ]; then
-        # Invalid ossec init file. Unable to update
+        echo "# ($FUNCNAME) ERROR: The variable DIRECTORY wasn't set." 1>&2
         echo "${FALSE}"
         return 1;
     fi
-    
+
     # Checking if the directory is valid.
-    echo $DIRECTORY | grep -E "^/[a-zA-Z0-9/-]{3,128}$" > /dev/null 2>&1
+    _dir_pattern_update="^/[-a-zA-Z0-9/\.-]{3,128}$"
+    echo $DIRECTORY | grep -E "$_dir_pattern_update" > /dev/null 2>&1
     if [ ! $? = 0 ]; then
+        echo "# ($FUNCNAME) ERROR: directory name ($DIRECTORY) doesn't match the pattern $_dir_pattern_update" 1>&2
         echo "${FALSE}"
         return 1;
     fi
 }
 
-
-##########
-# getPreinstalled 
-##########
 getPreinstalled()
 {
     . ${OSSEC_INIT}
@@ -67,21 +55,17 @@ getPreinstalled()
         echo "agent"
         return 0;
     fi
-    
+
     cat $DIRECTORY/etc/ossec.conf | grep "<remote>" > /dev/null 2>&1
     if [ $? = 0 ]; then
         echo "server"
         return 0;
     fi
-    
+
     echo "local"
-    return 0;   
+    return 0;
 }
 
-
-##########
-# getPreinstalledDir
-##########
 getPreinstalledDir()
 {
     . ${OSSEC_INIT}
@@ -89,26 +73,18 @@ getPreinstalledDir()
     return 0;
 }
 
-
-##########
-# UpdateStartOSSEC
-##########
 UpdateStartOSSEC()
 {
    . ${OSSEC_INIT}
-   
-   $DIRECTORY/bin/ossec-control start 
-}
 
+   $DIRECTORY/bin/ossec-control start
+}
 
-##########
-# UpdateStopOSSEC
-##########
 UpdateStopOSSEC()
 {
    . ${OSSEC_INIT}
-   
-   $DIRECTORY/bin/ossec-control stop 
+
+   $DIRECTORY/bin/ossec-control stop
 
    # We also need to remove all syscheck queue file (format changed)
    if [ "X$VERSION" = "X0.9-3" ]; then
@@ -118,10 +94,6 @@ UpdateStopOSSEC()
    rm -f $DIRECTORY/queue/syscheck/.* > /dev/null 2>&1
 }
 
-
-##########
-# UpdateOSSECRules 
-##########
 UpdateOSSECRules()
 {
     . ${OSSEC_INIT}
@@ -130,13 +102,28 @@ UpdateOSSECRules()
 
     # Backing up the old config
     cp -pr ${OSSEC_CONF_FILE} "${OSSEC_CONF_FILE}.$$.bak"
-    
-    cat ${OSSEC_CONF_FILE}|grep -v "<rules>" |grep -v "</rules>" |grep -v "<include>" > "${OSSEC_CONF_FILE}.$$.tmp"
 
+    # Getting rid of old rules entries
+    grep -Ev "</*rules>|<include>|<list>|<decoder>|<decoder_dir|<rule_dir>|rules global entry" ${OSSEC_CONF_FILE} > "${OSSEC_CONF_FILE}.$$.tmp"
+
+    # Customer decoder, decoder_dir, rule_dir are carried over during upgrade
+    grep -E '<decoder>|<decoder_dir|<rule_dir>' ${OSSEC_CONF_FILE} | grep -v '<!--' >> "${OSSEC_CONF_FILE}.$$.tmp2"
+
+    # Check for custom files that may have been added in <rules> element
+    for i in `grep -E '<include>|<list>' ${OSSEC_CONF_FILE} | grep -v '<!--'`
+    do
+      grep "$i" ${RULES_TEMPLATE}>/dev/null || echo "    $i" >> "${OSSEC_CONF_FILE}.$$.tmp2"
+    done
+
+    # Putting everything back together
     cat "${OSSEC_CONF_FILE}.$$.tmp" > ${OSSEC_CONF_FILE}
     rm "${OSSEC_CONF_FILE}.$$.tmp"
     echo "" >> ${OSSEC_CONF_FILE}
     echo "<ossec_config>  <!-- rules global entry -->" >> ${OSSEC_CONF_FILE}
-    cat ${RULES_TEMPLATE} >> ${OSSEC_CONF_FILE}
+    grep -v '</rules>' ${RULES_TEMPLATE} >> ${OSSEC_CONF_FILE}
+    cat "${OSSEC_CONF_FILE}.$$.tmp2" >> ${OSSEC_CONF_FILE}
+    echo "</rules>" >> ${OSSEC_CONF_FILE}
     echo "</ossec_config>  <!-- rules global entry -->" >> ${OSSEC_CONF_FILE}
-} 
+    rm "${OSSEC_CONF_FILE}.$$.tmp2"
+}
+