Fix PLMN Decoding

nickvsnetworking · Jan 12, 2024 · becbc85 · becbc85
1 parent e37e323
commit becbc85
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/lib/diameter.py b/lib/diameter.py
@@ -161,14 +161,18 @@ def Reverse(self, str):
         return (slicedString)
 
     def DecodePLMN(self, plmn):
-        self.logTool.log(service='HSS', level='debug', message="Decoded PLMN: " + str(plmn), redisClient=self.redisMessaging)
-        mcc = self.Reverse(plmn[0:2]) + self.Reverse(plmn[2:4]).replace('f', '')
+
+        self.logTool.log(service='HSS', level='debug', message="Decoding PLMN: " + str(plmn), redisClient=self.redisMessaging)
+        if "f" in plmn:
+            mcc = self.Reverse(plmn[0:2]) + self.Reverse(plmn[2:4]).replace('f', '')
+            mnc = self.Reverse(plmn[4:6])
+        else:
+            mcc = self.Reverse(plmn[0:2]) + self.Reverse(plmn[2:4][1])
+            mnc = self.Reverse(plmn[4:6]) + str(self.Reverse(plmn[2:4][0]))
         self.logTool.log(service='HSS', level='debug', message="Decoded MCC: " + mcc, redisClient=self.redisMessaging)
-
-        mnc = self.Reverse(plmn[4:6])
         self.logTool.log(service='HSS', level='debug', message="Decoded MNC: " + mnc, redisClient=self.redisMessaging)
         return mcc, mnc
-
+        
     def EncodePLMN(self, mcc, mnc):
         plmn = list('XXXXXX')
         plmn[0] = self.Reverse(mcc)[1]