--- /dev/null
+/*****************************************************************************\r
+# *\r
+# Copyright 2019 AT&T Intellectual Property *\r
+# Copyright 2019 Nokia *\r
+# *\r
+# Licensed under the Apache License, Version 2.0 (the "License"); *\r
+# you may not use this file except in compliance with the License. *\r
+# You may obtain a copy of the License at *\r
+# *\r
+# http://www.apache.org/licenses/LICENSE-2.0 *\r
+# *\r
+# Unless required by applicable law or agreed to in writing, software *\r
+# distributed under the License is distributed on an "AS IS" BASIS, *\r
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *\r
+# See the License for the specific language governing permissions and *\r
+# limitations under the License. *\r
+# *\r
+******************************************************************************/\r
+#include "e2ap_message_handler.hpp"\r
+#include <unistd.h>\r
+\r
+void e2ap_handle_sctp_data(int &socket_fd, sctp_buffer_t &data)\r
+{\r
+ //decode the data into E2AP-PDU\r
+ E2AP_PDU_t* pdu = new E2AP_PDU_t();\r
+\r
+ e2ap_asn1c_decode_pdu(pdu, data.buffer, data.len);\r
+\r
+ e2ap_asn1c_print_pdu(pdu);\r
+\r
+ int procedureCode = e2ap_asn1c_get_procedureCode(pdu);\r
+ int index = (int)pdu->present;\r
+\r
+ LOG_D("[E2AP] Unpacked E2AP-PDU: index = %d, procedureCode = %d\n",\r
+ index, procedureCode);\r
+\r
+ switch(procedureCode)\r
+ {\r
+ case ProcedureCode_id_x2Setup: //X2Setup = 6\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
+ LOG_I("[E2AP] Received X2-SETUP-REQUEST");\r
+ e2ap_handle_X2SetupRequest(pdu, socket_fd);\r
+ break;\r
+\r
+ case E2AP_PDU_PR_successfulOutcome: //successfulOutcome\r
+ LOG_I("[E2AP] Received X2-SETUP-RESPONSE");\r
+ e2ap_handle_X2SetupResponse(pdu, socket_fd);\r
+ break;\r
+\r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_endcX2Setup: //ENDCX2Setup = 36\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
+ LOG_I("[E2AP] Received ENDC-X2-SETUP-REQUEST");\r
+ e2ap_handle_ENDCX2SetupRequest(pdu, socket_fd);\r
+ break;\r
+\r
+ case E2AP_PDU_PR_successfulOutcome: //successfulOutcome\r
+ LOG_I("[E2AP] Received ENDC-X2-SETUP-RESPONSE");\r
+ //no handler yet\r
+ break;\r
+\r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ LOG_I("[E2AP] Received ENDC-X2-SETUP-FAILURE");\r
+ //no handler yet\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_reset: //reset = 7\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage:\r
+ LOG_I("[E2AP] Received RESET-REQUEST");\r
+ break;\r
+\r
+ case E2AP_PDU_PR_successfulOutcome:\r
+ break;\r
+\r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_ricSubscription: //RIC SUBSCRIPTION = 201\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
+ LOG_I("[E2AP] Received RIC-SUBSCRIPTION-REQUEST");\r
+ //e2ap_handle_RICSubscriptionRequest(pdu, socket_fd);\r
+ e2ap_handle_RICSubscriptionRequest_securityDemo(pdu, socket_fd);\r
+ break;\r
+\r
+ case E2AP_PDU_PR_successfulOutcome:\r
+ LOG_I("[E2AP] Received RIC-SUBSCRIPTION-RESPONSE");\r
+ break;\r
+\r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ LOG_I("[E2AP] Received RIC-SUBSCRIPTION-FAILURE");\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_ricIndication: // 205\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
+ LOG_I("[E2AP] Received RIC-INDICATION");\r
+ // e2ap_handle_RICSubscriptionRequest(pdu, socket_fd);\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
+ (int)ProcedureCode_id_ricIndication);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_resourceStatusReportingInitiation: //9\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
+ LOG_I("[E2AP] Received RESOURCE-STATUS-REQUEST");\r
+ e2ap_handle_ResourceStatusRequest(pdu, socket_fd);\r
+ break;\r
+\r
+ case E2AP_PDU_PR_successfulOutcome: //successfulOutcome\r
+ LOG_I("[E2AP] Received RESOURCE-STATUS-RESPONSE");\r
+ break;\r
+\r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ LOG_I("[E2AP] Received RESOURCE-STATUS-FAILURE");\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
+ (int)ProcedureCode_id_resourceStatusReportingInitiation);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_resourceStatusReporting: // 10\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
+ LOG_I("[E2AP] Received RESOURCE-STATUS-UPDATE");\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] Unable to process message index=%d in E2AP-PDU %d", index,\r
+ (int)ProcedureCode_id_resourceStatusReporting);\r
+ break;\r
+ }\r
+ break;\r
+\r
+ default:\r
+ LOG_E("[E2AP] No available handler for procedureCode=%d", procedureCode);\r
+ break;\r
+ }\r
+}\r
+\r
+/*\r
+Simply send back X2SetupResponse\r
+Todo: add more handling options (failure, duplicated request, etc.)\r
+*/\r
+void e2ap_handle_X2SetupRequest(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ E2AP_PDU_t* res_pdu = e2ap_xml_to_pdu("E2AP_X2SetupResponse.xml");\r
+\r
+ LOG_D("[E2AP] Created X2-SETUP-RESPONSE");\r
+\r
+ e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+ uint8_t *buf;\r
+ sctp_buffer_t data;\r
+\r
+ data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
+ memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));\r
+\r
+ //send response data over sctp\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent X2-SETUP-RESPONSE");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send X2-SETUP-RESPONSE to peer");\r
+ }\r
+}\r
+\r
+void e2ap_handle_X2SetupResponse(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ E2AP_PDU_t* req_pdu = e2ap_xml_to_pdu("E2AP_ResourceStatusRequest.xml");\r
+ // E2AP_PDU_t* req_pdu = e2ap_xml_to_pdu("E2AP_ResourceStatusRequest_bad.xml");\r
+\r
+ LOG_D("[E2AP] Created RESOURCE-STATUS-REQUEST");\r
+\r
+ e2ap_asn1c_print_pdu(req_pdu);\r
+\r
+ uint8_t *buf;\r
+ sctp_buffer_t data;\r
+\r
+ data.len = e2ap_asn1c_encode_pdu(req_pdu, &buf);\r
+ memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));\r
+\r
+ //send response data over sctp\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent RESOURCE-STATUS-REQUEST");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RESOURCE-STATUS-REQUEST to peer");\r
+ }\r
+\r
+}\r
+\r
+/*\r
+Simply send back ENDCX2SetupResponse\r
+Todo: add more handling options (failure, duplicated request, etc.)\r
+*/\r
+void e2ap_handle_ENDCX2SetupRequest(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ E2AP_PDU_t* res_pdu = e2ap_xml_to_pdu("E2AP_ENDCX2SetupResponse.xml");\r
+\r
+ LOG_D("[E2AP] Created ENDC-X2-SETUP-RESPONSE");\r
+\r
+ e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+ uint8_t *buf;\r
+ sctp_buffer_t data;\r
+\r
+ data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
+ memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));\r
+\r
+ //send response data over sctp\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent ENDC-X2-SETUP-RESPONSE");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send ENDC-X2-SETUP-RESPONSE to peer");\r
+ }\r
+}\r
+\r
+/*\r
+Simply send back hard-coded RICSubscriptionResponse\r
+Todo: add more handling options (failure, duplicated request, etc.)\r
+*/\r
+void e2ap_handle_RICSubscriptionRequest(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ E2AP_PDU_t* res_pdu = e2ap_xml_to_pdu("E2AP_RICsubscriptionResponse.xml");\r
+\r
+ LOG_D("[E2AP] Created RIC-SUBSCRIPTION-RESPONSE");\r
+\r
+ e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+ uint8_t *buf;\r
+ sctp_buffer_t data;\r
+\r
+ data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
+ memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));\r
+\r
+ //send response data over sctp\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent RIC-SUBSCRIPTION-RESPONSE");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RIC-SUBSCRIPTION-RESPONSE to peer");\r
+ }\r
+}\r
+\r
+void e2ap_handle_RICSubscriptionRequest_securityDemo(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ E2AP_PDU_t* res_pdu = e2ap_xml_to_pdu("E2AP_RICsubscriptionResponse.xml");\r
+\r
+ LOG_D("[E2AP] Created RIC-SUBSCRIPTION-RESPONSE");\r
+\r
+ e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+ uint8_t *buf;\r
+ sctp_buffer_t data;\r
+\r
+ data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
+ memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));\r
+\r
+ //send response data over sctp\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent RIC-SUBSCRIPTION-RESPONSE");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RIC-SUBSCRIPTION-RESPONSE to peer");\r
+ }\r
+\r
+ //Start sending RIC Indication\r
+ int count1 = 0, count2 = 0;\r
+\r
+ E2AP_PDU_t* indication_type1 = e2ap_xml_to_pdu("E2AP_RICindication_type1.xml");\r
+ E2AP_PDU_t* indication_type2 = e2ap_xml_to_pdu("E2AP_RICindication_type2.xml");\r
+\r
+ uint8_t *buf1, *buf2;\r
+ sctp_buffer_t data1, data2;\r
+ data1.len = e2ap_asn1c_encode_pdu(indication_type1, &buf1);\r
+ memcpy(data1.buffer, buf1, min(data1.len, MAX_SCTP_BUFFER));\r
+\r
+ data2.len = e2ap_asn1c_encode_pdu(indication_type2, &buf2);\r
+ memcpy(data2.buffer, buf2, min(data2.len, MAX_SCTP_BUFFER));\r
+\r
+ while(1){\r
+ sleep(1);\r
+ //type1\r
+ if(sctp_send_data(socket_fd, data1) > 0) {\r
+ count1++;\r
+ LOG_I("[SCTP] Sent RIC-INDICATION SgNBAdditionRequest Type 1, count1 = %d", count1);\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RIC-INDICATION to peer");\r
+ }\r
+\r
+ sleep(1);\r
+ //type2\r
+ if(sctp_send_data(socket_fd, data2) > 0) {\r
+ count2++;\r
+ LOG_I("[SCTP] Sent RIC-INDICATION SgNBAdditionRequest Type 2, count2 = %d", count2);\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RIC-INDICATION to peer");\r
+ }\r
+ } //end while\r
+\r
+}\r
+\r
+void e2ap_handle_ResourceStatusRequest(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ //send back ResourceStatusResponse, followed by resource status update\r
+ E2AP_PDU_t* res_pdu = e2ap_xml_to_pdu("E2AP_ResourceStatusResponse.xml");\r
+\r
+ LOG_D("[E2AP] Created RESOURCE-STATUS-RESPONSE");\r
+\r
+ e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+ uint8_t *buf;\r
+ sctp_buffer_t data;\r
+\r
+ data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
+ memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));\r
+\r
+ //send response data over sctp\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent RESOURCE-STATUS-RESPONSE");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RESOURCE-STATUS-RESPONSE to peer");\r
+ }\r
+\r
+\r
+ //send ResourceStatusUpdate periodically\r
+ E2AP_PDU_t* update_pdu = e2ap_xml_to_pdu("E2AP_ResourceStatusUpdate.xml");\r
+\r
+ uint8_t *update_buf;\r
+ sctp_buffer_t update_data;\r
+\r
+ update_data.len = e2ap_asn1c_encode_pdu(update_pdu, &update_buf);\r
+ memcpy(update_data.buffer, update_buf, min(update_data.len, MAX_SCTP_BUFFER));\r
+\r
+ while(1) {\r
+ // e2ap_asn1c_print_pdu(update_pdu);\r
+\r
+ if(sctp_send_data(socket_fd, update_data) > 0) {\r
+ LOG_I("[SCTP] Sent RESOURCE-STATUS-UPDATE");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send RESOURCE-STATUS-UPDATE to peer");\r
+ }\r
+\r
+ sleep(1);\r
+\r
+ }\r
+}\r
Code Review / sim / e2-interface.git / blobdiff