From 5505f52570f2ae2f8b6610a722f53d27e723cbec Mon Sep 17 00:00:00 2001
From: Christoph <ckubu@oopen.de>
Date: Sat, 20 Oct 2018 02:54:55 +0200
Subject: [PATCH] Ignore double entries in file 'ban_ipv4.list'. Changes in log
 output for banned ipv4 addresses.

---
 ipt-firewall-server | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ipt-firewall-server b/ipt-firewall-server
index e814112..e7660d5 100755
--- a/ipt-firewall-server
+++ b/ipt-firewall-server
@@ -493,11 +493,15 @@ if [[ -f "${CONFIG_DIR}/ban_ipv4.list" ]] ; then
 
          _ip="${ipv4}/${mask}"
 
+         if containsElement "$_ip"  "${ban_ipv4_arr[@]}" ; then
+            continue
+         fi
+
          for _dev in ${ext_if_arr[@]} ; do
             if $log_blocked_ip || $log_all ; then
-               $ipt -A INPUT -i $_dev -s $_ip -j LOG --log-prefix "$log_prefix Blocked ${_ip}: " --log-level $log_level
+               $ipt -A INPUT -i $_dev -s $_ip -j LOG --log-prefix "$log_prefix Blocked: " --log-level $log_level
                if $kernel_activate_forwarding ; then
-                  $ipt -A FORWARD -i $_dev -s $_ip -j LOG --log-prefix "$log_prefix Blocked ${_ip}: " --log-level $log_level
+                  $ipt -A FORWARD -i $_dev -s $_ip -j LOG --log-prefix "$log_prefix Blocked: " --log-level $log_level
                fi
             fi
             $ipt -A INPUT -i $_dev -s $_ip -j DROP
@@ -506,6 +510,8 @@ if [[ -f "${CONFIG_DIR}/ban_ipv4.list" ]] ; then
             fi
          done
 
+         ban_ipv4_arr+=("$_ip")
+
       else
          msg="$msg '${given_ipv4}'"
       fi