--- /dev/null
+/*\r
+ ==================================================================================\r
+\r
+ Copyright (c) 2018-2019 AT&T Intellectual Property.\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, softwares\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
+\r
+/* Classes to handle E2 service model based on e2sm-gNB-X2-release-1-v040.asn */\r
+\r
+#include "e2sm.hpp"\r
+\r
+\r
+\r
+ //initialize\r
+ e2sm_event_trigger::e2sm_event_trigger(void){\r
+\r
+ memset(&gNodeB_ID, 0, sizeof(GlobalGNB_ID_t));\r
+\r
+ event_trigger = 0;\r
+ event_trigger = ( E2SM_gNB_X2_eventTriggerDefinition_t *)calloc(1, sizeof( E2SM_gNB_X2_eventTriggerDefinition_t));\r
+ assert(event_trigger != 0);\r
+ \r
+ // allocate space for gNodeB id (used for encoding)\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.buf = 0;\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.buf = (uint8_t *)calloc(4, sizeof(uint8_t));\r
+ assert(gNodeB_ID.gNB_ID.choice.gNB_ID.buf != 0);\r
+ \r
+ // allocate space for plmn identity (used for encoding)\r
+ gNodeB_ID.pLMN_Identity.buf = 0;\r
+ gNodeB_ID.pLMN_Identity.buf = (uint8_t *) calloc(4, sizeof(uint8_t));\r
+ assert(gNodeB_ID.pLMN_Identity.buf != 0);\r
+\r
+ ie_list = 0;\r
+ ie_list = ( struct InterfaceProtocolIE_Item *) calloc(INITIAL_LIST_SIZE, sizeof( struct InterfaceProtocolIE_Item));\r
+ assert(ie_list != 0);\r
+ ie_list_size = INITIAL_LIST_SIZE;\r
+\r
+ condition_list = 0;\r
+ condition_list = (E2SM_gNB_X2_eventTriggerDefinition::E2SM_gNB_X2_eventTriggerDefinition__interfaceProtocolIE_List *) calloc(1, sizeof(E2SM_gNB_X2_eventTriggerDefinition::E2SM_gNB_X2_eventTriggerDefinition__interfaceProtocolIE_List ));\r
+ assert(condition_list != 0);\r
+\r
+ \r
+ \r
+ };\r
+ \r
+e2sm_event_trigger::~e2sm_event_trigger(void){\r
+\r
+ mdclog_write(MDCLOG_INFO, "Freeing event trigger object memory");\r
+ for(int i = 0; i < condition_list->list.size; i++){\r
+ condition_list->list.array[i] = 0;\r
+ }\r
+\r
+ if (condition_list->list.size > 0){\r
+ free(condition_list->list.array);\r
+ condition_list->list.array = 0;\r
+ condition_list->list.size = 0;\r
+ condition_list->list.count = 0;\r
+ }\r
+\r
+ free(condition_list);\r
+ condition_list = 0;\r
+ \r
+ free(gNodeB_ID.gNB_ID.choice.gNB_ID.buf);\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.buf = 0;\r
+ \r
+ free(gNodeB_ID.pLMN_Identity.buf);\r
+ gNodeB_ID.pLMN_Identity.buf = 0;\r
+ \r
+ free(ie_list);\r
+ ie_list = 0;\r
+ \r
+ event_trigger->interface_ID.choice.global_gNB_ID = 0;\r
+ event_trigger->interfaceProtocolIE_List = 0;\r
+ \r
+ ASN_STRUCT_FREE(asn_DEF_E2SM_gNB_X2_eventTriggerDefinition, event_trigger);\r
+ mdclog_write(MDCLOG_INFO, "Freed event trigger object memory");\r
+\r
+ \r
+};\r
+\r
+bool e2sm_event_trigger::encode_event_trigger(unsigned char *buf, size_t *size, e2sm_event_trigger_helper &helper){\r
+ \r
+ bool res;\r
+ res = set_fields(event_trigger, helper);\r
+ if (!res){\r
+ return false;\r
+ }\r
+ \r
+ int ret_constr = asn_check_constraints(&asn_DEF_E2SM_gNB_X2_eventTriggerDefinition, event_trigger, errbuf, &errbuf_len);\r
+ if(ret_constr){\r
+ error_string.assign(&errbuf[0], errbuf_len);\r
+ return false;\r
+ }\r
+\r
+ //xer_fprint(stdout, &asn_DEF_E2SM_gNB_X2_eventTriggerDefinition, event_trigger);\r
+ \r
+ asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2SM_gNB_X2_eventTriggerDefinition, event_trigger, buf, *size);\r
+ \r
+ if(retval.encoded == -1){\r
+ error_string.assign(strerror(errno));\r
+ return false;\r
+ }\r
+ else if (retval.encoded > *size){\r
+ std::stringstream ss;\r
+ ss <<"Error encoding event trigger definition. Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;\r
+ error_string = ss.str();\r
+ return false;\r
+ }\r
+ else{\r
+ *size = retval.encoded;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+bool e2sm_event_trigger::set_fields(E2SM_gNB_X2_eventTriggerDefinition_t * ref_event_trigger, e2sm_event_trigger_helper & helper){\r
+ if(ref_event_trigger == 0){\r
+ error_string = "Invalid reference for Event Trigger Definition set fields";\r
+ return false;\r
+ }\r
+ \r
+ // set the message type\r
+ ref_event_trigger->interfaceMessageType.procedureCode = helper.procedure_code;\r
+ ref_event_trigger->interfaceMessageType.typeOfMessage = helper.message_type;\r
+ \r
+ ref_event_trigger->interfaceDirection = helper.interface_direction; \r
+ ref_event_trigger->interface_ID.present = Interface_ID_PR_global_gNB_ID;\r
+ \r
+ ref_event_trigger->interface_ID.choice.global_gNB_ID = &gNodeB_ID;\r
+\r
+ // to do : need to put correct code here for upding plmn id and gNodeB\r
+ // for now just place holders :\r
+ //================================================================\r
+ memcpy(gNodeB_ID.pLMN_Identity.buf, helper.plmn_id.c_str(), 3);\r
+ gNodeB_ID.pLMN_Identity.size = 3;\r
+ \r
+ memcpy(gNodeB_ID.gNB_ID.choice.gNB_ID.buf, helper.egNB_id.c_str(), 3);\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.size = 3;\r
+ \r
+ // we only do global gNodeB id for now, not eNodeB\r
+ gNodeB_ID.gNB_ID.present = GNB_ID_PR_gNB_ID;\r
+ //================================================================\r
+ \r
+ \r
+ // Add in any requested IE items\r
+ std::vector<Item> * ref_ie_array = helper.get_list();\r
+\r
+ if (ref_ie_array->size() == 0){\r
+ event_trigger->interfaceProtocolIE_List = 0;\r
+ \r
+ }\r
+ else{\r
+ event_trigger->interfaceProtocolIE_List = condition_list;\r
+ \r
+ //reallocate ? \r
+ if(ref_ie_array->size() > ie_list_size){\r
+ struct InterfaceProtocolIE_Item *new_ref = 0;\r
+ ie_list_size = 2 * ref_ie_array->size();\r
+ new_ref = (struct InterfaceProtocolIE_Item *)realloc(ie_list, ie_list_size);\r
+ assert(new_ref != 0);\r
+ ie_list = new_ref;\r
+ }\r
+ \r
+ // reset the count so that adds start from the beginning\r
+ ref_event_trigger->interfaceProtocolIE_List->list.count = 0;\r
+ \r
+ for(unsigned int i = 0; i < ref_ie_array->size(); i++){\r
+\r
+ ie_list[i].interfaceProtocolIE_ID = (*ref_ie_array)[i].interface_id;\r
+ ie_list[i].interfaceProtocolIE_Test = (*ref_ie_array)[i].test;\r
+ \r
+ //switch(ie_list[i].interfaceProtocolIE_Value.present){\r
+ switch((*ref_ie_array)[i].val_type){\r
+ \r
+ case (InterfaceProtocolIE_Value_PR_valueInt):\r
+ ie_list[i].interfaceProtocolIE_Value.present = InterfaceProtocolIE_Value_PR_valueInt;\r
+ ie_list[i].interfaceProtocolIE_Value.choice.valueInt = (*ref_ie_array)[i].value_n;\r
+ break;\r
+ \r
+ case (InterfaceProtocolIE_Value_PR_valueEnum):\r
+ ie_list[i].interfaceProtocolIE_Value.present = InterfaceProtocolIE_Value_PR_valueEnum;\r
+ ie_list[i].interfaceProtocolIE_Value.choice.valueEnum = (*ref_ie_array)[i].value_n;\r
+ break;\r
+ \r
+ case (InterfaceProtocolIE_Value_PR_valueBool):\r
+ ie_list[i].interfaceProtocolIE_Value.present = InterfaceProtocolIE_Value_PR_valueBool;\r
+ ie_list[i].interfaceProtocolIE_Value.choice.valueBool = (*ref_ie_array)[i].value_n;\r
+ break;\r
+ \r
+ case (InterfaceProtocolIE_Value_PR_valueBitS):\r
+ ie_list[i].interfaceProtocolIE_Value.present = InterfaceProtocolIE_Value_PR_valueBitS;\r
+ ie_list[i].interfaceProtocolIE_Value.choice.valueBitS.buf = (uint8_t *)(*ref_ie_array)[i].value_s.c_str();\r
+ ie_list[i].interfaceProtocolIE_Value.choice.valueBitS.size = (*ref_ie_array)[i].value_s.length();\r
+ break;\r
+ \r
+ default:\r
+ {\r
+ std::stringstream ss;\r
+ ss <<"Error ! " << __FILE__ << "," << __LINE__ << " illegal enum " << (*ref_ie_array)[i].val_type << " for interface Protocol IE value" << std::endl;\r
+ std::string error_string = ss.str();\r
+ return false;\r
+ }\r
+ }\r
+ \r
+ ASN_SEQUENCE_ADD(ref_event_trigger->interfaceProtocolIE_List, &ie_list[i]);\r
+ }\r
+ }\r
+\r
+ return true;\r
+};\r
+ \r
+\r
+bool e2sm_event_trigger::get_fields(E2SM_gNB_X2_eventTriggerDefinition_t * ref_event_trigger, e2sm_event_trigger_helper & helper){\r
+\r
+ if (ref_event_trigger == 0){\r
+ error_string = "Invalid reference for Event Trigger definition get fields";\r
+ return false;\r
+ }\r
+ \r
+ helper.procedure_code = ref_event_trigger->interfaceMessageType.procedureCode;\r
+ helper.message_type = ref_event_trigger->interfaceMessageType.typeOfMessage;\r
+ helper.interface_direction = ref_event_trigger->interfaceDirection;\r
+ \r
+ helper.plmn_id.assign((const char *)ref_event_trigger->interface_ID.choice.global_gNB_ID->pLMN_Identity.buf, ref_event_trigger->interface_ID.choice.global_gNB_ID->pLMN_Identity.size);\r
+ helper.egNB_id.assign((const char *)ref_event_trigger->interface_ID.choice.global_gNB_ID->gNB_ID.choice.gNB_ID.buf, ref_event_trigger->interface_ID.choice.global_gNB_ID->gNB_ID.choice.gNB_ID.size);\r
+\r
+ return true;\r
+};\r
+ \r
+\r
+ \r
+ \r
+// initialize\r
+e2sm_indication::e2sm_indication(void) {\r
+ \r
+ memset(&gNodeB_ID, 0, sizeof(GlobalGNB_ID_t));\r
+ \r
+ // allocate space for gNodeB id (used for encoding)\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.buf = (uint8_t *)calloc(4, sizeof(uint8_t));\r
+ assert(gNodeB_ID.gNB_ID.choice.gNB_ID.buf != 0);\r
+ \r
+ // allocate space for plmn identity (used for encoding)\r
+ gNodeB_ID.pLMN_Identity.buf = (uint8_t *) calloc(4, sizeof(uint8_t));\r
+ assert(gNodeB_ID.pLMN_Identity.buf != 0);\r
+\r
+ header = 0;\r
+ header = (E2SM_gNB_X2_indicationHeader_t *)calloc(1, sizeof(E2SM_gNB_X2_indicationHeader_t));\r
+ assert(header != 0);\r
+\r
+ message = 0;\r
+ message = (E2SM_gNB_X2_indicationMessage_t *)calloc(1, sizeof(E2SM_gNB_X2_indicationMessage_t));\r
+ assert(message != 0);\r
+}\r
+ \r
+e2sm_indication::~e2sm_indication(void){\r
+ mdclog_write(MDCLOG_INFO, "Freeing E2SM Indication object memory");\r
+\r
+ free(gNodeB_ID.gNB_ID.choice.gNB_ID.buf);\r
+ free(gNodeB_ID.pLMN_Identity.buf);\r
+ \r
+ header->interface_ID.choice.global_gNB_ID = 0;\r
+\r
+ ASN_STRUCT_FREE(asn_DEF_E2SM_gNB_X2_indicationHeader, header);\r
+\r
+ message->interfaceMessage.buf = 0;\r
+ message->interfaceMessage.size = 0;\r
+\r
+ ASN_STRUCT_FREE(asn_DEF_E2SM_gNB_X2_indicationMessage, message);\r
+ mdclog_write(MDCLOG_INFO, "Freed E2SM Indication object memory");\r
+ \r
+}\r
+ \r
+ \r
+\r
+bool e2sm_indication::encode_indication_header(unsigned char *buf, size_t *size, e2sm_header_helper &helper){\r
+ \r
+ bool res;\r
+ res = set_header_fields(header, helper);\r
+ if (!res){\r
+ return false;\r
+ }\r
+\r
+ int ret_constr = asn_check_constraints(&asn_DEF_E2SM_gNB_X2_indicationHeader, header, errbuf, &errbuf_len);\r
+ if(ret_constr){\r
+ error_string.assign(&errbuf[0], errbuf_len);\r
+ error_string = "E2SM Indication Header Constraint failed : " + error_string;\r
+\r
+ return false;\r
+ }\r
+\r
+ asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2SM_gNB_X2_indicationHeader, header, buf, *size);\r
+\r
+ if(retval.encoded == -1){\r
+ error_string.assign(strerror(errno));\r
+ error_string = "Error encoding E2SM Indication Header. Reason = " + error_string;\r
+ return false;\r
+ }\r
+ else if (retval.encoded > *size){\r
+ std::stringstream ss;\r
+ ss <<"Error encoding E2SM Indication Header . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;\r
+ error_string = ss.str();\r
+ return false;\r
+ }\r
+ else{\r
+ *size = retval.encoded;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+bool e2sm_indication::encode_indication_message(unsigned char *buf, size_t *size, e2sm_message_helper &helper){\r
+\r
+ set_message_fields(message, helper); \r
+\r
+ int ret_constr = asn_check_constraints(&asn_DEF_E2SM_gNB_X2_indicationMessage, message, errbuf, &errbuf_len);\r
+ if(ret_constr){\r
+ error_string.assign(&errbuf[0], errbuf_len);\r
+ error_string = "E2SM Indication Message Constraint failed : " + error_string;\r
+ return false;\r
+ }\r
+\r
+ asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2SM_gNB_X2_indicationMessage, message, buf, *size);\r
+ if(retval.encoded == -1){\r
+ error_string.assign(strerror(errno));\r
+ error_string = "Error encoding E2SM Indication Header. Reason = " + error_string;\r
+ return false;\r
+ }\r
+ else if (retval.encoded > *size){\r
+ std::stringstream ss;\r
+ ss <<"Error encoding E2SM Indication Message . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;\r
+ error_string = ss.str();\r
+ \r
+ return false;\r
+ }\r
+ else{\r
+ *size = retval.encoded;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+\r
+// Used when generating an indication header \r
+bool e2sm_indication::set_header_fields(E2SM_gNB_X2_indicationHeader_t *header, e2sm_header_helper &helper){\r
+\r
+ if (header == 0){\r
+ error_string = "Invalid reference for E2SM Indication Header set fields";\r
+ return false;\r
+ }\r
+ \r
+ \r
+ header->interfaceDirection = helper.interface_direction;\r
+ header->interface_ID.present = Interface_ID_PR_global_gNB_ID;\r
+ header->interface_ID.choice.global_gNB_ID = &gNodeB_ID;\r
+\r
+\r
+ // to do : need to put correct code here for upding plmn id and gNodeB\r
+ // for now just place holders :\r
+ memcpy(gNodeB_ID.pLMN_Identity.buf, helper.plmn_id.c_str(), 3);\r
+ gNodeB_ID.pLMN_Identity.size = 3;\r
+ \r
+ memcpy(gNodeB_ID.gNB_ID.choice.gNB_ID.buf, helper.egNB_id.c_str(), 3);\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.size = 3;\r
+ \r
+ // we only do global gNodeB id for now, not eNodeB\r
+ gNodeB_ID.gNB_ID.present = GNB_ID_PR_gNB_ID;\r
+\r
+ return true;\r
+ \r
+};\r
+\r
+\r
+// used when decoding an indication header\r
+bool e2sm_indication::get_header_fields(E2SM_gNB_X2_indicationHeader_t *header, e2sm_header_helper &helper){\r
+\r
+ if (header == 0){\r
+ error_string = "Invalid reference for E2SM Indication header get fields";\r
+ return false;\r
+ }\r
+ \r
+ helper.interface_direction = header->interfaceDirection;\r
+ helper.plmn_id.assign((const char *)header->interface_ID.choice.global_gNB_ID->pLMN_Identity.buf, header->interface_ID.choice.global_gNB_ID->pLMN_Identity.size);\r
+ helper.egNB_id.assign((const char *)header->interface_ID.choice.global_gNB_ID->gNB_ID.choice.gNB_ID.buf, header->interface_ID.choice.global_gNB_ID->gNB_ID.choice.gNB_ID.size);\r
+ \r
+ // to do : add code to decipher plmn and global gnodeb from ints (since that is likely the convention for packing)\r
+\r
+ return true;\r
+}\r
+\r
+\r
+\r
+// Used when generating an indication message \r
+bool e2sm_indication::set_message_fields(E2SM_gNB_X2_indicationMessage_t *interface_message, e2sm_message_helper &helper){\r
+\r
+ if(interface_message == 0){\r
+ error_string = "Invalid reference for E2SM Indication Message set fields";\r
+ return false;\r
+ }\r
+\r
+ // interface-message is an octet string. just point it to the buffer\r
+ interface_message->interfaceMessage.buf = &(helper.x2ap_pdu[0]);\r
+ interface_message->interfaceMessage.size = helper.x2ap_pdu_size;\r
+\r
+ return true;\r
+ \r
+};\r
+\r
+// used when decoding an indication message\r
+bool e2sm_indication::get_message_fields( E2SM_gNB_X2_indicationMessage_t *interface_message, e2sm_message_helper &helper){\r
+\r
+ \r
+ if(interface_message == 0){\r
+ error_string = "Invalid reference for E2SM Indication Message get fields";\r
+ return false;\r
+ }\r
+\r
+ // interface message is an octet string\r
+ helper.x2ap_pdu = interface_message->interfaceMessage.buf;;\r
+ helper.x2ap_pdu_size = interface_message->interfaceMessage.size;\r
+\r
+ return true;\r
+ \r
+}\r
+ \r
+\r
+ \r
+// initialize\r
+e2sm_control::e2sm_control(void) {\r
+ \r
+ memset(&gNodeB_ID, 0, sizeof(GlobalGNB_ID_t));\r
+ \r
+ // allocate space for gNodeB id (used for encoding)\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.buf = (uint8_t *)calloc(4, sizeof(uint8_t));\r
+ assert(gNodeB_ID.gNB_ID.choice.gNB_ID.buf != 0);\r
+ \r
+ // allocate space for plmn identity (used for encoding)\r
+ gNodeB_ID.pLMN_Identity.buf = (uint8_t *) calloc(4, sizeof(uint8_t));\r
+ assert(gNodeB_ID.pLMN_Identity.buf != 0);\r
+\r
+ header = 0;\r
+ header = (E2SM_gNB_X2_controlHeader_t *)calloc(1, sizeof(E2SM_gNB_X2_controlHeader_t));\r
+ assert(header != 0);\r
+\r
+ message = 0;\r
+ message = (E2SM_gNB_X2_controlMessage_t *)calloc(1, sizeof(E2SM_gNB_X2_controlMessage_t));\r
+ assert(message != 0);\r
+}\r
+ \r
+e2sm_control::~e2sm_control(void){\r
+ mdclog_write(MDCLOG_INFO, "Freeing E2SM Control object memory");\r
+\r
+ free(gNodeB_ID.gNB_ID.choice.gNB_ID.buf);\r
+ free(gNodeB_ID.pLMN_Identity.buf);\r
+ header->interface_ID.choice.global_gNB_ID = 0;\r
+ ASN_STRUCT_FREE(asn_DEF_E2SM_gNB_X2_controlHeader, header);\r
+\r
+ message->interfaceMessage.buf = 0;\r
+ ASN_STRUCT_FREE(asn_DEF_E2SM_gNB_X2_controlMessage, message);\r
+\r
+ mdclog_write(MDCLOG_INFO, "Freed E2SM Control object memory");\r
+ \r
+}\r
+ \r
+ \r
+\r
+bool e2sm_control::encode_control_header(unsigned char *buf, size_t *size, e2sm_header_helper &helper){\r
+ \r
+ bool res;\r
+ res = set_header_fields(header, helper);\r
+ if (!res){\r
+ return false;\r
+ }\r
+\r
+ int ret_constr = asn_check_constraints(&asn_DEF_E2SM_gNB_X2_controlHeader, header, errbuf, &errbuf_len);\r
+ if(ret_constr){\r
+ error_string.assign(&errbuf[0], errbuf_len);\r
+ error_string = "E2SM Control Header Constraint failed : " + error_string;\r
+\r
+ return false;\r
+ }\r
+\r
+ asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2SM_gNB_X2_controlHeader, header, buf, *size);\r
+\r
+ if(retval.encoded == -1){\r
+ error_string.assign(strerror(errno));\r
+ error_string = "Error encoding E2SM Control Header. Reason = " + error_string;\r
+ return false;\r
+ }\r
+ else if (retval.encoded > *size){\r
+ std::stringstream ss;\r
+ ss <<"Error encoding E2SM Control Header . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;\r
+ error_string = ss.str();\r
+ return false;\r
+ }\r
+ else{\r
+ *size = retval.encoded;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+bool e2sm_control::encode_control_message(unsigned char *buf, size_t *size, e2sm_message_helper &helper){\r
+\r
+ set_message_fields(message, helper); \r
+\r
+ int ret_constr = asn_check_constraints(&asn_DEF_E2SM_gNB_X2_controlMessage, message, errbuf, &errbuf_len);\r
+ if(ret_constr){\r
+ error_string.assign(&errbuf[0], errbuf_len);\r
+ error_string = "E2SM Control Message Constraint failed : " + error_string;\r
+ return false;\r
+ }\r
+\r
+ asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2SM_gNB_X2_controlMessage, message, buf, *size);\r
+ if(retval.encoded == -1){\r
+ error_string.assign(strerror(errno));\r
+ error_string = "Error encoding E2SM Control Message. Reason = " + error_string;\r
+ return false;\r
+ }\r
+ else if (retval.encoded > *size){\r
+ std::stringstream ss;\r
+ ss <<"Error encoding E2SM Control Message . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;\r
+ error_string = ss.str();\r
+ \r
+ return false;\r
+ }\r
+ else{\r
+ *size = retval.encoded;\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+\r
+\r
+// Used when generating an indication header \r
+bool e2sm_control::set_header_fields(E2SM_gNB_X2_controlHeader_t *header, e2sm_header_helper &helper){\r
+\r
+ if (header == 0){\r
+ error_string = "Invalid reference for E2SM Control Header set fields";\r
+ return false;\r
+ }\r
+ \r
+ \r
+ header->interfaceDirection = helper.interface_direction;\r
+ header->interface_ID.present = Interface_ID_PR_global_gNB_ID;\r
+ header->interface_ID.choice.global_gNB_ID = &gNodeB_ID;\r
+\r
+\r
+ // to do : need to put correct code here for upding plmn id and gNodeB\r
+ // for now just place holders :\r
+ memcpy(gNodeB_ID.pLMN_Identity.buf, helper.plmn_id.c_str(), 3);\r
+ gNodeB_ID.pLMN_Identity.size = 3;\r
+ \r
+ memcpy(gNodeB_ID.gNB_ID.choice.gNB_ID.buf, helper.egNB_id.c_str(), 3);\r
+ gNodeB_ID.gNB_ID.choice.gNB_ID.size = 3;\r
+ \r
+ // we only do global gNodeB id for now, not eNodeB\r
+ gNodeB_ID.gNB_ID.present = GNB_ID_PR_gNB_ID;\r
+\r
+ return true;\r
+ \r
+};\r
+\r
+\r
+// used when decoding an indication header\r
+bool e2sm_control::get_header_fields(E2SM_gNB_X2_controlHeader_t *header, e2sm_header_helper &helper){\r
+\r
+ if (header == 0){\r
+ error_string = "Invalid reference for E2SM Control header get fields";\r
+ return false;\r
+ }\r
+ \r
+ helper.interface_direction = header->interfaceDirection;\r
+ helper.plmn_id.assign((const char *)header->interface_ID.choice.global_gNB_ID->pLMN_Identity.buf, header->interface_ID.choice.global_gNB_ID->pLMN_Identity.size);\r
+ helper.egNB_id.assign((const char *)header->interface_ID.choice.global_gNB_ID->gNB_ID.choice.gNB_ID.buf, header->interface_ID.choice.global_gNB_ID->gNB_ID.choice.gNB_ID.size);\r
+ \r
+ // to do : add code to decipher plmn and global gnodeb from ints (since that is likely the convention for packing)\r
+\r
+ return true;\r
+}\r
+\r
+\r
+\r
+// Used when generating an indication message \r
+bool e2sm_control::set_message_fields(E2SM_gNB_X2_controlMessage_t *interface_message, e2sm_message_helper &helper){\r
+\r
+ if(interface_message == 0){\r
+ error_string = "Invalid reference for E2SM Control Message set fields";\r
+ return false;\r
+ }\r
+\r
+ // interface-message is an octet string. just point it to the buffer\r
+ interface_message->interfaceMessage.buf = &(helper.x2ap_pdu[0]);\r
+ interface_message->interfaceMessage.size = helper.x2ap_pdu_size;\r
+\r
+ return true;\r
+ \r
+};\r
+\r
+// used when decoding an indication message\r
+bool e2sm_control::get_message_fields( E2SM_gNB_X2_controlMessage_t *interface_message, e2sm_message_helper &helper){\r
+\r
+ \r
+ if(interface_message == 0){\r
+ error_string = "Invalid reference for E2SM Control Message get fields";\r
+ return false;\r
+ }\r
+\r
+ // interface message is an octet string\r
+ helper.x2ap_pdu = interface_message->interfaceMessage.buf;;\r
+ helper.x2ap_pdu_size = interface_message->interfaceMessage.size;\r
+\r
+ return true;\r
+ \r
+}\r
+ \r
Code Review / ric-app / kpimon.git / blobdiff