M2AP 3GPP TS 36.443 interface implemented:

1.MCE (Multicast Control Entity) entity developed (new dedicated task developed: TASK_MCE_APP) 2.eNB side M2 interface procedures (new dedicated task developed: TASK_M2AP_ENB) 3.MCE side M2 interface procedures (new dedicated task developed: TASK_M2AP_MCE) 4.ASN1 bindings for m2ap-14.0.0.asn1 implemented and tested 5.MCE config parameters ACKNOWLEDGEMENT: 1. This commit was developed at Vicomtech (https://www.vicomtech.org) under UE project CDN-X-ALL: "CDN edge-cloud computing for efficient cache and reliable streaming aCROSS Aggregated unicast-multicast LinkS" 2. Project funded by Fed4FIRE+ OC5 (https://www.fed4fire.eu) Signed-off-by: Javier Morgade <javier.morgade@ieee.org>
2019-09-14 13:45:27 +02:00
parent 3992eb9e87
commit ab04e0e469
40 changed files with 10747 additions and 7 deletions
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+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+/*! \file m2ap_eNB_handler.c
+ * \brief m2ap handler procedures for eNB
+ * \author Javier Morgade <javier.morgade@ieee.org>
+ * \date 2019
+ * \version 0.1
+ */
+
+#include <stdint.h>
+
+#include "intertask_interface.h"
+
+#include "asn1_conversions.h"
+
+#include "m2ap_common.h"
+#include "m2ap_eNB_defs.h"
+#include "m2ap_eNB_handler.h"
+#include "m2ap_decoder.h"
+#include "m2ap_ids.h"
+
+#include "m2ap_eNB_management_procedures.h"
+#include "m2ap_eNB_generate_messages.h"
+
+//#include "m2ap_MCE_interface_management.h"
+#include "m2ap_eNB_interface_management.h"
+
+#include "msc.h"
+#include "assertions.h"
+#include "conversions.h"
+
+/* Handlers matrix. Only eNB related procedure present here */
+m2ap_eNB_message_decoded_callback m2ap_eNB_messages_callback[][3] = {
+  { eNB_handle_MBMS_SESSION_START_REQUEST, 0, 0 }, /* MBMSSessionStart  */
+  { eNB_handle_MBMS_SESSION_STOP_REQUEST, 0, 0 }, /* MBMSSessionStop */
+  { eNB_handle_MBMS_SCHEDULING_INFORMATION, 0, 0 }, /* MBMSSchedulingInformation */
+  { 0, 0, 0 }, /* Error Indication */
+  { 0, 0, 0 }, /* Reset */
+  { 0,eNB_handle_M2_SETUP_RESPONSE,eNB_handle_M2_SETUP_FAILURE }, /* M2 Setup */
+  { 0, 0, 0 }, /* eNBConfigurationUpdate */
+  { 0, 0, 0 }, /* MCEConfigurationUpdate */
+  { 0, 0, 0 }, /* privateMessage */
+  { 0, 0, 0 }, /* MBMSSessionUpdate */
+  { 0, 0, 0 }, /* MBMSServiceCounting */
+  { 0, 0, 0 }, /* MBMSServiceCountingResultReport */
+  { 0, 0, 0 } /* MBMSOverloadNotification */
+};
+
+static char *m2ap_direction2String(int m2ap_dir) {
+static char *m2ap_direction_String[] = {
+  "", /* Nothing */
+  "Originating message", /* originating message */
+  "Successfull outcome", /* successfull outcome */
+  "UnSuccessfull outcome", /* successfull outcome */
+};
+return(m2ap_direction_String[m2ap_dir]);
+}
+
+
+int m2ap_eNB_handle_message(instance_t instance, uint32_t assoc_id, int32_t stream,
+                            const uint8_t * const data, const uint32_t data_length)
+{
+  M2AP_M2AP_PDU_t pdu;
+  int ret;
+
+  DevAssert(data != NULL);
+
+  memset(&pdu, 0, sizeof(pdu));
+
+  if (m2ap_decode_pdu(&pdu, data, data_length) < 0) {
+    LOG_E(M2AP, "Failed to decode PDU\n");
+    return -1;
+  }
+
+  /* Checking procedure Code and direction of message */
+  if (pdu.choice.initiatingMessage.procedureCode > sizeof(m2ap_eNB_messages_callback) / (3 * sizeof(
+        m2ap_message_decoded_callback))
+      || (pdu.present > M2AP_M2AP_PDU_PR_unsuccessfulOutcome)) {
+    LOG_E(M2AP, "[SCTP %d] Either procedureCode %ld or direction %d exceed expected\n",
+               assoc_id, pdu.choice.initiatingMessage.procedureCode, pdu.present);
+    ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_M2AP_M2AP_PDU, &pdu);
+    return -1;
+  }
+
+  /* No handler present.
+   * This can mean not implemented or no procedure for eNB (wrong direction).
+   */
+  if (m2ap_eNB_messages_callback[pdu.choice.initiatingMessage.procedureCode][pdu.present - 1] == NULL) {
+    LOG_E(M2AP, "[SCTP %d] No handler for procedureCode %ld in %s\n",
+                assoc_id, pdu.choice.initiatingMessage.procedureCode,
+               m2ap_direction2String(pdu.present - 1));
+    ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_M2AP_M2AP_PDU, &pdu);
+    return -1;
+  }
+  
+  /* Calling the right handler */
+  LOG_I(M2AP, "Calling handler with instance %d\n",instance);
+  ret = (*m2ap_eNB_messages_callback[pdu.choice.initiatingMessage.procedureCode][pdu.present - 1])
+        (instance, assoc_id, stream, &pdu);
+  ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_M2AP_M2AP_PDU, &pdu);
+  return ret;
+}
+
+