From 0afa4ccf16854805a067ae8bc653a90ad7a839aa Mon Sep 17 00:00:00 2001
From: Daniel Willmann <dwillmann@sysmocom.de>
Date: Fri, 27 Jan 2023 12:12:45 +0100
Subject: [PATCH] Use default APN if the one from the ESM info resp could not
 be found

---
 src/mme/esm-handler.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/mme/esm-handler.c b/src/mme/esm-handler.c
index 752f760c8..f4b2b138e 100644
--- a/src/mme/esm-handler.c
+++ b/src/mme/esm-handler.c
@@ -187,8 +187,14 @@ int esm_handle_information_response(mme_sess_t *sess,
 
     if (rsp->presencemask &
             OGS_NAS_EPS_ESM_INFORMATION_RESPONSE_ACCESS_POINT_NAME_PRESENT) {
-        sess->session = mme_session_find_by_apn(
+        ogs_session_t *session = mme_session_find_by_apn(
                             mme_ue, rsp->access_point_name.apn);
+        if (session) {
+            sess->session = session;
+        } else {
+            ogs_error("    APN[%s] not found, using default!", rsp->access_point_name.apn);
+            sess->session = mme_default_session(mme_ue);
+        }
     }
 
     if (rsp->presencemask &