From 1e4c967afc22098c9fce9b585042bde5d536d8c7 Mon Sep 17 00:00:00 2001
From: Mike Reeves <mike.reeves@securityonionsolutions.com>
Date: Thu, 25 Jun 2020 14:02:02 -0400
Subject: [PATCH] Fix math for suri loss calulcations

---
 salt/telegraf/scripts/suriloss.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/salt/telegraf/scripts/suriloss.sh b/salt/telegraf/scripts/suriloss.sh
index c9e9d478e..48745c161 100644
--- a/salt/telegraf/scripts/suriloss.sh
+++ b/salt/telegraf/scripts/suriloss.sh
@@ -15,7 +15,9 @@ if [ $CHECKIT == 2 ]; then
   else
     CURRENTPACKETS=${RESULT[9]}
     PASTPACKETS=${RESULT[19]}
-    TOTAL=$(($CURRENTPACKETS - $PASTPACKETS + $DROPPED))
+    TOTALCURRENT=$(($CURRENTPACKETS + $CURRENTDROP))
+    TOTALPAST=$(($PASTPACKETS + $PASTDROP))
+    TOTAL=$(($TOTALCURRENT - $TOTALPAST))
 
     LOSS=$(echo $DROPPED $TOTAL / p | dc)
     echo "suridrop drop=$LOSS"