+ if (er.encoded == -1) {\r
+ LOG_E("Failed to serialize message. Detail: %s.\n", asn_DEF_E2AP_PDU.name);\r
+ exit(1);\r
+ } else if (er.encoded > buffer_size) {\r
+ LOG_E("Buffer of size %zu is too small for %s, need %zu\n", buffer_size, asn_DEF_E2AP_PDU.name, er.encoded);\r
+ exit(1);\r
+ }\r
+\r
+ data.len = er.encoded;\r
+\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("Sent E2-SERVICE-UPDATE");\r
+ } else {\r
+ LOG_E("Unable to send E2-SERVICE-UPDATE to peer");\r
+ }\r
+}\r
+\r
+void e2ap_send_e2nodeConfigUpdate(int& socket_fd) {\r
+ auto buffer_size = MAX_SCTP_BUFFER;\r
+ unsigned char buffer[MAX_SCTP_BUFFER];\r
+ E2AP_PDU_t* pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
+\r
+ LOG_I("Generating E2 node configure update");\r
+\r
+ encoding::generate_e2apv2_config_update(pdu);\r
+\r
+ e2ap_asn1c_print_pdu(pdu);\r
+\r
+ sctp_buffer_t data;\r
+\r
+ char error_buf[300] = {\r
+ 0,\r
+ };\r
+ size_t errlen = 0;\r
+\r
+ asn_check_constraints(&asn_DEF_E2AP_PDU, pdu, error_buf, &errlen);\r
+\r
+ auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu, buffer, buffer_size);\r
+\r
+ if (er.encoded == -1) {\r
+ LOG_E("Failed to serialize message. Detail: %s.\n", asn_DEF_E2AP_PDU.name);\r
+ exit(1);\r
+ } else if (er.encoded > buffer_size) {\r
+ LOG_E("Buffer of size %zu is too small for %s, need %zu\n", buffer_size, asn_DEF_E2AP_PDU.name, er.encoded);\r
+ exit(1);\r
+ }\r
+\r
+ data.len = er.encoded;\r
+\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("Sent E2nodeConfigUpdate");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send E2nodeConfigUpdate to peer");\r
+ }\r
+}\r
+\r
+void e2ap_handle_E2SetupRequest(E2AP_PDU_t* pdu, int& socket_fd) {\r