From 1efc4e678ae4d17a7ddcc2176011c75554b09fcf Mon Sep 17 00:00:00 2001
From: Andre Puschmann <andre@softwareradiosystems.com>
Date: Thu, 18 Jan 2018 11:25:14 +0100
Subject: [PATCH 1/3] print error msg when UE DB wasn't found

---
 srsepc/src/hss/hss.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/srsepc/src/hss/hss.cc b/srsepc/src/hss/hss.cc
index 659933c7b..b236acc08 100644
--- a/srsepc/src/hss/hss.cc
+++ b/srsepc/src/hss/hss.cc
@@ -86,6 +86,7 @@ hss::init(hss_args_t *hss_args, srslte::log_filter *hss_log)
   /*Read user information from DB*/
   if(read_db_file(hss_args->db_file) == false)
   {
+    m_hss_log->console("Error reading user database file %s\n", hss_args->db_file.c_str());
     return -1;
   }
 
@@ -140,7 +141,7 @@ hss::read_db_file(std::string db_filename)
   {
     return false;
   }
-  m_hss_log->info("Opended DB file: %s\n", db_filename.c_str() );
+  m_hss_log->info("Opened DB file: %s\n", db_filename.c_str() );
 
   std::string line;
   while (std::getline(m_db_file, line))

From 8eeaafba5686b370c46add5caebc447e2514b55a Mon Sep 17 00:00:00 2001
From: Andre Puschmann <andre@softwareradiosystems.com>
Date: Thu, 18 Jan 2018 11:29:13 +0100
Subject: [PATCH 2/3] fix compiler warning

---
 srsepc/src/mme/mme_gtpc.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/srsepc/src/mme/mme_gtpc.cc b/srsepc/src/mme/mme_gtpc.cc
index a6f09148d..651eb4e49 100644
--- a/srsepc/src/mme/mme_gtpc.cc
+++ b/srsepc/src/mme/mme_gtpc.cc
@@ -217,7 +217,7 @@ mme_gtpc::send_delete_session_request(ue_ctx_t *ue_ctx)
 {
   m_mme_gtpc_log->info("Sending GTP-C Delete Session Request request\n");
   srslte::gtpc_pdu del_req_pdu;
-  srslte::gtpc_f_teid_ie *sgw_ctrl_fteid;
+  srslte::gtpc_f_teid_ie *sgw_ctrl_fteid = NULL;
 
   //FIXME the UE control TEID sould be stored in the UE ctxt, not in the E-RAB ctxt
   //Maybe a mme_s1ap_id to ctrl teid map as well?
@@ -230,6 +230,8 @@ mme_gtpc::send_delete_session_request(ue_ctx_t *ue_ctx)
       break;
     }
   }
+  //FIXME: add proper error handling
+  assert(sgw_ctrl_fteid != NULL);
 
   srslte::gtpc_header *header = &del_req_pdu.header;
   header->teid_present = true;

From 0d5c110246a02e811377f20156a333d4cf2c39ec Mon Sep 17 00:00:00 2001
From: Andre Puschmann <andre@softwareradiosystems.com>
Date: Thu, 18 Jan 2018 11:38:03 +0100
Subject: [PATCH 3/3] specify flags when opening UE db

---
 srsepc/src/hss/hss.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/srsepc/src/hss/hss.cc b/srsepc/src/hss/hss.cc
index b236acc08..0ccea844b 100644
--- a/srsepc/src/hss/hss.cc
+++ b/srsepc/src/hss/hss.cc
@@ -136,7 +136,7 @@ hss::set_auth_algo(std::string auth_algo)
 bool
 hss::read_db_file(std::string db_filename)
 {
-  m_db_file.open(db_filename.c_str());
+  m_db_file.open(db_filename.c_str(), std::ifstream::in);
   if(!m_db_file.is_open())
   {
     return false;