From e5d07a4231cf2e3841c725af04118f95aac3e211 Mon Sep 17 00:00:00 2001
From: Pedro Alvarez <pedro.alvarez@softwareradiosystems.com>
Date: Thu, 1 Feb 2018 12:54:40 +0000
Subject: [PATCH] Starting to extract AMF value from authentication request
 (AUTN) in srsUE.

---
 srsue/src/upper/usim.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/srsue/src/upper/usim.cc b/srsue/src/upper/usim.cc
index fe70797e3..f8b45d625 100644
--- a/srsue/src/upper/usim.cc
+++ b/srsue/src/upper/usim.cc
@@ -356,6 +356,11 @@ void usim::gen_auth_res_milenage( uint8_t  *rand,
   {
     sqn[i] = autn_enb[i] ^ ak[i];
   }
+  // Extract AMF from autn
+  for(int i=0;i<2;i++)
+  {
+    amf[i]=autn_enb[6+i];
+  }
 
   // Generate MAC
   security_milenage_f1( k,
@@ -431,6 +436,10 @@ void usim::gen_auth_res_xor(uint8_t  *rand,
   for(i=0;i<6;i++) {
     sqn[i] = autn_enb[i] ^ ak[i];
   }
+  // Extract AMF from autn
+  for(int i=0;i<2;i++){
+      amf[i]=autn_enb[6+i];
+  }
 
   // Generate cdout
   for(i=0; i<6; i++) {