--- /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
+#include "encode_e2apv1.hpp"\r
+\r
+void e2ap_handle_sctp_data(int &socket_fd, sctp_buffer_t &data, bool xmlenc)\r
+{\r
+ fprintf(stderr, "in e2ap_handle_sctp_data()\n");\r
+ //decode the data into E2AP-PDU\r
+ E2AP_PDU_t* pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
+ ASN_STRUCT_RESET(asn_DEF_E2AP_PDU, pdu);\r
+\r
+ fprintf(stderr, "decoding...\n");\r
+\r
+ asn_transfer_syntax syntax;\r
+ \r
+ if (!xmlenc) \r
+ syntax = ATS_ALIGNED_BASIC_PER;\r
+ else\r
+ syntax = ATS_BASIC_XER;\r
+\r
+ // e2ap_asn1c_decode_pdu(pdu, data.buffer, data.len);\r
+\r
+ auto rval = asn_decode(nullptr, syntax, &asn_DEF_E2AP_PDU, (void **) &pdu,\r
+ data.buffer, data.len);\r
+ \r
+\r
+ int index = (int)pdu->present;\r
+ fprintf(stderr, "length of data %d\n", rval.consumed);\r
+ fprintf(stderr, "result %d\n", rval.code);\r
+ fprintf(stderr, "index is %d\n", index);\r
+ \r
+ fprintf(stderr, "showing xer of data\n"); \r
+ \r
+ xer_fprint(stderr, &asn_DEF_E2AP_PDU, pdu);\r
+ \r
+ int procedureCode = e2ap_asn1c_get_procedureCode(pdu);\r
+ 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
+ \r
+ case ProcedureCode_id_E2setup:\r
+ switch(index)\r
+ {\r
+ case E2AP_PDU_PR_initiatingMessage:\r
+ e2ap_handle_E2SetupRequest(pdu, socket_fd); \r
+ LOG_I("[E2AP] Received SETUP-REQUEST");\r
+ break;\r
+ \r
+ case E2AP_PDU_PR_successfulOutcome:\r
+ LOG_I("[E2AP] Received SETUP-RESPONSE-SUCCESS"); \r
+ break;\r
+ \r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ LOG_I("[E2AP] Received SETUP-RESPONSE-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_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-REQUEST");\r
+ // e2ap_handle_RICSubscriptionRequest(pdu, socket_fd);\r
+ break;\r
+ case E2AP_PDU_PR_successfulOutcome:\r
+ LOG_I("[E2AP] Received RIC-INDICATION-RESPONSE");\r
+ break;\r
+ \r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ LOG_I("[E2AP] Received RIC-INDICATION-FAILURE");\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
+ default:\r
+ \r
+ LOG_E("[E2AP] No available handler for procedureCode=%d", procedureCode);\r
+ /*\r
+ fprintf(stderr, "sending subscription request\n");\r
+ E2AP_PDU_t* sub_pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
+ generate_e2apv1_subscription_request(sub_pdu);\r
+\r
+ auto buffer_size = MAX_SCTP_BUFFER;\r
+ unsigned char buffer[MAX_SCTP_BUFFER];\r
+ \r
+ sctp_buffer_t data;\r
+\r
+ auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, sub_pdu, buffer, buffer_size);\r
+\r
+ data.len = er.encoded;\r
+ \r
+ fprintf(stderr, "er encded is %d\n", er.encoded);\r
+ \r
+ memcpy(data.buffer, buffer, er.encoded);\r
+\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent E2-SUBSCRIPTION-REQUEST");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send E2-SUBSCRIPTION-REQUEST to peer");\r
+ }\r
+ */\r
+ break;\r
+ }\r
+}\r
+\r
+void e2ap_handle_E2SetupRequest(E2AP_PDU_t* pdu, int &socket_fd) {\r
+\r
+ \r
+ E2AP_PDU_t* res_pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
+ generate_e2apv1_setup_response(res_pdu);\r
+\r
+ \r
+ LOG_D("[E2AP] Created E2-SETUP-RESPONSE");\r
+\r
+ e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+\r
+ auto buffer_size = MAX_SCTP_BUFFER;\r
+ unsigned char buffer[MAX_SCTP_BUFFER];\r
+ \r
+ sctp_buffer_t data;\r
+ auto er = asn_encode_to_buffer(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, res_pdu, buffer, buffer_size);\r
+\r
+ data.len = er.encoded;\r
+ fprintf(stderr, "er encoded is %d\n", er.encoded); \r
+ \r
+ //data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
+ memcpy(data.buffer, buffer, er.encoded);\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
+ sleep(5);\r
+\r
+ //Sending Subscription Request\r
+\r
+ E2AP_PDU_t* pdu_sub = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
+\r
+ // generate_e2apv1_subscription_request(pdu_setup);\r
+ generate_e2apv1_subscription_request(pdu_sub);\r
+\r
+ xer_fprint(stderr, &asn_DEF_E2AP_PDU, pdu_sub);\r
+\r
+ auto buffer_size2 = MAX_SCTP_BUFFER;\r
+ unsigned char buffer2[MAX_SCTP_BUFFER];\r
+ \r
+ sctp_buffer_t data2;\r
+\r
+ // auto er2 = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu_sub, buffer, buffer_size);\r
+ auto er2 = asn_encode_to_buffer(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, pdu_sub, buffer, buffer_size);\r
+ \r
+ data2.len = er2.encoded;\r
+ memcpy(data2.buffer, buffer2, er2.encoded);\r
+ \r
+ fprintf(stderr, "er encded is %d\n", er2.encoded);\r
+\r
+ /*\r
+ fprintf(stderr, "now that we've encoded....let's decode!!\n");\r
+ E2AP_PDU_t* pdu_sub2 = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
+\r
+ // auto er3 = asn_decode(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, (void **) &pdu_sub2, \r
+ auto er3 = asn_decode(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, (void **) &pdu_sub2,\r
+ data2.buffer, data2.len);\r
+\r
+ int index = (int)pdu_sub2->present;\r
+ fprintf(stderr, "length of data %d\n", er3.consumed);\r
+ fprintf(stderr, "result %d\n", er3.code);\r
+ fprintf(stderr, "index is %d\n", index);\r
+ \r
+ fprintf(stderr, "showing xer of data\n"); \r
+ \r
+ xer_fprint(stderr, &asn_DEF_E2AP_PDU, pdu_sub2);\r
+ int procedureCode = e2ap_asn1c_get_procedureCode(pdu_sub2);\r
+\r
+ LOG_D("[E2AP] Unpacked E2AP-PDU: index = %d, procedureCode = %d\n",\r
+ index, procedureCode); \r
+\r
+\r
+ */ \r
+\r
+ \r
+ \r
+ \r
+\r
+ if(sctp_send_data(socket_fd, data2) > 0) {\r
+ LOG_I("[SCTP] Sent E2-SUBSCRIPTION-REQUEST");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send E2-SUBSCRIPTION-REQUEST to peer");\r
+ } \r
+\r
+\r
+}\r
+\r
+\r
+void e2ap_handle_RICSubscriptionRequest(E2AP_PDU_t* pdu, int &socket_fd)\r
+{\r
+ //Send back an Indication\r
+\r
+\r
+ E2AP_PDU_t* pdu_setup = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
+\r
+ generate_e2apv1_indication_request(pdu_setup);\r
+\r
+ xer_fprint(stderr, &asn_DEF_E2AP_PDU, pdu_setup);\r
+\r
+ auto buffer_size = MAX_SCTP_BUFFER;\r
+ unsigned char buffer[MAX_SCTP_BUFFER];\r
+ \r
+ sctp_buffer_t data;\r
+\r
+ auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu_setup, buffer, buffer_size);\r
+ data.len = er.encoded;\r
+\r
+ fprintf(stderr, "er encded is %d\n", er.encoded);\r
+\r
+ memcpy(data.buffer, buffer, er.encoded);\r
+\r
+ if(sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("[SCTP] Sent E2-SETUP-REQUEST");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send E2-SETUP-REQUEST to peer");\r
+ } \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
+\r
Code Review / sim / e2-interface.git / blobdiff