renamed openair-cn to openair3

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-10-06 16:53:42 +00:00
parent c7518ecf42
commit 7b5431a62c
705 changed files with 206 additions and 208 deletions
@@ -0,0 +1,112 @@
+/*******************************************************************************
+    OpenAirInterface
+    Copyright(c) 1999 - 2014 Eurecom
+
+    OpenAirInterface is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+
+    OpenAirInterface is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenAirInterface.The full GNU General Public License is
+   included in this distribution in the file called "COPYING". If not,
+   see <http://www.gnu.org/licenses/>.
+
+  Contact Information
+  OpenAirInterface Admin: openair_admin@eurecom.fr
+  OpenAirInterface Tech : openair_tech@eurecom.fr
+  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
+
+  Address      : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
+
+ *******************************************************************************/
+
+/*! \file s1ap_eNB_overload.c
+ * \brief s1ap procedures for overload messages within eNB
+ * \author Sebastien ROUX <sebastien.roux@eurecom.fr>
+ * \date 2012
+ * \version 0.1
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "intertask_interface.h"
+
+#include "s1ap_common.h"
+#include "s1ap_ies_defs.h"
+#include "s1ap_eNB_defs.h"
+
+#include "s1ap_eNB.h"
+#include "s1ap_eNB_ue_context.h"
+#include "s1ap_eNB_encoder.h"
+#include "s1ap_eNB_overload.h"
+#include "s1ap_eNB_management_procedures.h"
+
+#include "assertions.h"
+
+int s1ap_eNB_handle_overload_start(uint32_t               assoc_id,
+                                   uint32_t               stream,
+                                   struct s1ap_message_s *message_p)
+{
+  S1ap_OverloadStartIEs_t *overload_start_p;
+  s1ap_eNB_mme_data_t     *mme_desc_p;
+
+  DevAssert(message_p != NULL);
+
+  overload_start_p = &message_p->msg.s1ap_OverloadStartIEs;
+
+  DevCheck(overload_start_p->overloadResponse.present ==
+           S1ap_OverloadResponse_PR_overloadAction,
+           S1ap_OverloadResponse_PR_overloadAction, 0, 0);
+
+  /* Non UE-associated signalling -> stream 0 */
+  DevCheck(stream == 0, stream, 0, 0);
+
+  if ((mme_desc_p = s1ap_eNB_get_MME(NULL, assoc_id, 0)) == NULL) {
+    /* No MME context associated */
+    return -1;
+  }
+
+  /* Mark the MME as overloaded and set the overload state according to
+   * the value received.
+   */
+  mme_desc_p->state = S1AP_ENB_OVERLOAD;
+  mme_desc_p->overload_state =
+    overload_start_p->overloadResponse.choice.overloadAction;
+
+  return 0;
+}
+
+int s1ap_eNB_handle_overload_stop(uint32_t               assoc_id,
+                                  uint32_t               stream,
+                                  struct s1ap_message_s *message_p)
+{
+  /* We received Overload stop message, meaning that the MME is no more
+   * overloaded. This is an empty message, with only message header and no
+   * Information Element.
+   */
+
+  DevAssert(message_p != NULL);
+
+  s1ap_eNB_mme_data_t *mme_desc_p;
+
+  /* Non UE-associated signalling -> stream 0 */
+  DevCheck(stream == 0, stream, 0, 0);
+
+  if ((mme_desc_p = s1ap_eNB_get_MME(NULL, assoc_id, 0)) == NULL) {
+    /* No MME context associated */
+    return -1;
+  }
+
+  mme_desc_p->state = S1AP_ENB_STATE_CONNECTED;
+  mme_desc_p->overload_state = S1AP_NO_OVERLOAD;
+  return 0;
+}