From 91d30a6530398a9c7e50a15ea1cf9a027953bd39 Mon Sep 17 00:00:00 2001 From: sjana Date: Tue, 31 Mar 2020 12:14:06 -0400 Subject: [PATCH] Incorporating A1 HealthCheck functionality Issue-ID: RICAPP-65 Signed-off-by: sjana Change-Id: I1147768efdc0e3f149045a20d94ab474f7fd61fe --- src/Makefile | 8 +- src/README | 9 + src/hw_xapp_main.cc | 29 +- src/routes.txt | 2 +- src/run_xapp.sh | 1 + src/xapp-formats/e2ap/e2ap_control.cc | 266 +++++++++ src/xapp-formats/e2ap/e2ap_control.hpp | 66 +++ src/xapp-formats/e2ap/e2ap_control_helper.hpp | 50 ++ src/xapp-formats/e2ap/e2ap_control_response.cc | 415 +++++++++++++ src/xapp-formats/e2ap/e2ap_control_response.hpp | 79 +++ src/xapp-formats/e2ap/e2ap_indication.cc | 283 +++++++++ src/xapp-formats/e2ap/e2ap_indication.hpp | 67 +++ src/xapp-formats/e2ap/e2ap_indication_helper.hpp | 47 ++ src/xapp-formats/e2ap/generic_helpers.hpp | 49 ++ src/xapp-formats/e2ap/response_helper.hpp | 181 ++++++ .../e2ap/subscription_delete_request.cc | 180 ++++++ .../e2ap/subscription_delete_request.hpp | 67 +++ .../e2ap/subscription_delete_response.cc | 292 +++++++++ .../e2ap/subscription_delete_response.hpp | 79 +++ src/xapp-formats/e2ap/subscription_helper.hpp | 196 ++++++ src/xapp-formats/e2ap/subscription_request.cc | 308 ++++++++++ src/xapp-formats/e2ap/subscription_request.hpp | 73 +++ src/xapp-formats/e2ap/subscription_response.cc | 583 ++++++++++++++++++ src/xapp-formats/e2ap/subscription_response.hpp | 81 +++ src/xapp-formats/e2sm/e2sm.cc | 660 +++++++++++++++++++++ src/xapp-formats/e2sm/e2sm.hpp | 145 +++++ src/xapp-formats/e2sm/e2sm_helpers.hpp | 115 ++++ src/xapp-mgmt/format_helper.hpp | 49 ++ src/xapp-mgmt/msgs_proc.cc | 149 +++-- src/xapp-mgmt/msgs_proc.hpp | 25 +- src/xapp-mgmt/subs_mgmt.cc | 56 +- src/xapp-mgmt/subs_mgmt.hpp | 171 +----- src/xapp-utils/xapp_rmr.cc | 31 +- src/xapp-utils/xapp_rmr.hpp | 5 +- src/xapp.cc | 41 +- src/xapp.hpp | 4 +- 36 files changed, 4549 insertions(+), 313 deletions(-) create mode 100644 src/xapp-formats/e2ap/e2ap_control.cc create mode 100644 src/xapp-formats/e2ap/e2ap_control.hpp create mode 100644 src/xapp-formats/e2ap/e2ap_control_helper.hpp create mode 100644 src/xapp-formats/e2ap/e2ap_control_response.cc create mode 100644 src/xapp-formats/e2ap/e2ap_control_response.hpp create mode 100644 src/xapp-formats/e2ap/e2ap_indication.cc create mode 100644 src/xapp-formats/e2ap/e2ap_indication.hpp create mode 100644 src/xapp-formats/e2ap/e2ap_indication_helper.hpp create mode 100644 src/xapp-formats/e2ap/generic_helpers.hpp create mode 100644 src/xapp-formats/e2ap/response_helper.hpp create mode 100644 src/xapp-formats/e2ap/subscription_delete_request.cc create mode 100644 src/xapp-formats/e2ap/subscription_delete_request.hpp create mode 100644 src/xapp-formats/e2ap/subscription_delete_response.cc create mode 100644 src/xapp-formats/e2ap/subscription_delete_response.hpp create mode 100644 src/xapp-formats/e2ap/subscription_helper.hpp create mode 100644 src/xapp-formats/e2ap/subscription_request.cc create mode 100644 src/xapp-formats/e2ap/subscription_request.hpp create mode 100644 src/xapp-formats/e2ap/subscription_response.cc create mode 100644 src/xapp-formats/e2ap/subscription_response.hpp create mode 100644 src/xapp-formats/e2sm/e2sm.cc create mode 100644 src/xapp-formats/e2sm/e2sm.hpp create mode 100644 src/xapp-formats/e2sm/e2sm_helpers.hpp create mode 100644 src/xapp-mgmt/format_helper.hpp diff --git a/src/Makefile b/src/Makefile index aebc506..eb52483 100755 --- a/src/Makefile +++ b/src/Makefile @@ -7,14 +7,14 @@ UTILSRC=./xapp-utils MSGSRC:=./xapp-mgmt ASNSRC:=../asn1c_defs -E2APSRC:=./xapp-asn/e2ap -E2SMSRC:=./xapp-asn/e2sm +E2APSRC:=./xapp-formats/e2ap +E2SMSRC:=./xapp-formats/e2sm ####### Logging library and flags CLOGFLAGS:= `pkg-config mdclog --cflags` LOG_LIBS:= `pkg-config mdclog --libs` CURL_LIBS:= `pkg-config libcurl --libs` -RNIB_LIBS:= -pthread /usr/local/lib/rnibreader.a +RNIB_LIBS:= -pthread /usr/local/lib/rnibreader_old.a ######## Keep include dirs separate so we have transparency @@ -76,4 +76,4 @@ install: hw_xapp_main install -D hw_xapp_main /usr/local/bin/hw_xapp_main clean: - -rm *.o $(ASNSRC)/*.o $(E2APSRC)/*.o $(UTILSRC)/*.o $(E2SMSRC)/*.o $(MSGSRC)/*.o $(SRC)/*.o hw_xapp_main + -rm *.o $(ASNSRC)/*.o $(E2APSRC)/*.o $(UTILSRC)/*.o $(E2SMSRC)/*.o $(MSGSRC)/*.o $(SRC)/*.o hw_xapp_main diff --git a/src/README b/src/README index 2c70d42..41a7ee3 100644 --- a/src/README +++ b/src/README @@ -23,3 +23,12 @@ It is required to have following features 3) SDL Access 4) Health Check 5)... + + + + +Steps for installation/running HWXapp. + +$ source ./run_xapp.sh +$ make +$ ./hw_xapp_main diff --git a/src/hw_xapp_main.cc b/src/hw_xapp_main.cc index 624d88f..aa51d20 100644 --- a/src/hw_xapp_main.cc +++ b/src/hw_xapp_main.cc @@ -61,35 +61,16 @@ int main(int argc, char *argv[]){ std::unique_ptr hw_xapp = std::make_unique(std::ref(config),std::ref(*rmr)); + //hw_xapp->startup(); - //register MsgHandler plugin for a received rmr_buffer - std::unique_ptr mp_handler = std::make_unique(); - hw_xapp->register_handler(std::bind(&XappMsgHandler::operator (),mp_handler.get(),std::placeholders::_1,std::placeholders::_2)); - - rmr->set_listen(true); - hw_xapp->start_xapp_receiver(std::ref(*mp_handler)); - - sleep(5); - + std::unique_ptr mp_handler = std::make_unique(config[XappSettings::SettingName::XAPP_ID]); + //hw_xapp->register_handler(std::bind(&XappMsgHandler::operator (),mp_handler.get(),std::placeholders::_1,std::placeholders::_2)); + hw_xapp->start_xapp_receiver(std::ref(*mp_handler)); //Delete all subscriptions if any based on Xapp Mode. //xapp->shutdown(); - xapp_rmr_header hdr; - hdr.message_type = RIC_HEALTH_CHECK_REQ; - - char *strMsg = "HelloWorld: RMR Health Check\0"; - - clock_gettime(CLOCK_REALTIME, &(hdr.ts)); - hdr.payload_length = strlen(strMsg); - - bool res = rmr->xapp_rmr_send(&hdr,(void*)strMsg); - - if (!res){ - std::cout << "Xapp RMR Send Failure"; - } - usleep(10); - while(1){ + while(1){ sleep(1); } diff --git a/src/routes.txt b/src/routes.txt index 3dd7cdd..2bcd6d3 100755 --- a/src/routes.txt +++ b/src/routes.txt @@ -2,6 +2,7 @@ newrt|start rte|0|localhost:4560 rte|2|localhost:38000 rte|100|localhost:4560 +rte|20010|localhost:4560 rte|10002|localhost:4560 rte|10005|localhost:4560 rte|10003|localhost:38000 @@ -14,6 +15,5 @@ rte|12022|localhost:4560 rte|20000|localhost:4560 rte|12040|localhost:38000 rte|20001|localhost:4566 -rte|20011|localhost:4560 rte|20012|localhost:4560 newrt|end diff --git a/src/run_xapp.sh b/src/run_xapp.sh index 460e59a..f65a4b7 100755 --- a/src/run_xapp.sh +++ b/src/run_xapp.sh @@ -1,5 +1,6 @@ #! /bin/bash +export RMR_SEED_RT="routes.txt" export RMR_RTG_SVC="9999" export XAPP_NAME="HELLOWORLD_XAPP" export HW_PORTS="4560" diff --git a/src/xapp-formats/e2ap/e2ap_control.cc b/src/xapp-formats/e2ap/e2ap_control.cc new file mode 100644 index 0000000..e66ddec --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_control.cc @@ -0,0 +1,266 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_control_request.c + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#include "e2ap_control.hpp" + +// Set up memory allocations for each IE for encoding +// We are responsible for memory management for each IE for encoding +// Hence destructor should clear out memory +// When decoding, we rely on asn1c macro (ASN_STRUCT_FREE to be called +// for releasing memory by external calling function) +ric_control_request::ric_control_request(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t * )calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + initMsg = 0; + initMsg = (E2N_InitiatingMessage_t * )calloc(1, sizeof(E2N_InitiatingMessage_t)); + assert(initMsg != 0); + + IE_array = 0; + IE_array = (E2N_RICcontrolRequest_IEs_t *)calloc(NUM_CONTROL_REQUEST_IES, sizeof(E2N_RICcontrolRequest_IEs_t)); + assert(IE_array != 0); + + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_initiatingMessage; + e2ap_pdu_obj->choice.initiatingMessage = initMsg; + + +}; + + +// Clear assigned protocolIE list from RIC control_request IE container +ric_control_request::~ric_control_request(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing E2AP Control Request object memory"); + + E2N_RICcontrolRequest_t *ricControl_Request = &(initMsg->value.choice.RICcontrolRequest); + for(int i = 0; i < ricControl_Request->protocolIEs.list.size; i++){ + ricControl_Request->protocolIEs.list.array[i] = 0; + } + + if (ricControl_Request->protocolIEs.list.size > 0){ + free(ricControl_Request->protocolIEs.list.array); + ricControl_Request->protocolIEs.list.size = 0; + ricControl_Request->protocolIEs.list.count = 0; + } + + free(IE_array); + free(initMsg); + e2ap_pdu_obj->choice.initiatingMessage = 0; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed E2N_E2AP Control Request object mempory"); + +} + + +bool ric_control_request::encode_e2ap_control_request(unsigned char *buf, size_t *size, ric_control_helper & dinput){ + + initMsg->procedureCode = E2N_ProcedureCode_id_ricControl; + initMsg->criticality = E2N_Criticality_ignore; + initMsg->value.present = E2N_InitiatingMessage__value_PR_RICcontrolRequest; + + bool res; + + res = set_fields(initMsg, dinput); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + error_string = "Constraints failed for encoding control . Reason = " + error_string; + return false; + } + + //xer_fprint(stdout, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + return false; + } + else { + if(*size < retval.encoded){ + std::stringstream ss; + ss <<"Error encoding event trigger definition. Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + } + + *size = retval.encoded; + return true; + +} + +bool ric_control_request::set_fields(E2N_InitiatingMessage_t *initMsg, ric_control_helper &dinput){ + unsigned int ie_index; + + if (initMsg == 0){ + error_string = "Invalid reference for E2AP Control_Request message in set_fields"; + return false; + } + + E2N_RICcontrolRequest_t * ric_control_request = &(initMsg->value.choice.RICcontrolRequest); + ric_control_request->protocolIEs.list.count = 0; // reset + + // for(i = 0; i < NUM_CONTROL_REQUEST_IES;i++){ + // memset(&(IE_array[i]), 0, sizeof(RICcontrolRequest_IEs_t)); + // } + + // Mandatory IE + ie_index = 0; + E2N_RICcontrolRequest_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICcontrolRequest_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = dinput.req_id; + ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no; + ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index])); + + // Mandatory IE + ie_index = 1; + E2N_RICcontrolRequest_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICcontrolRequest_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = dinput.func_id; + ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index])); + + + // Mandatory IE + ie_index = 2; + E2N_RICcontrolRequest_IEs_t *ies_richead = &IE_array[ie_index]; + ies_richead->criticality = E2N_Criticality_reject; + ies_richead->id = E2N_ProtocolIE_ID_id_RICcontrolHeader; + ies_richead->value.present = E2N_RICcontrolRequest_IEs__value_PR_RICcontrolHeader; + E2N_RICcontrolHeader_t *richeader_ie = &ies_richead->value.choice.RICcontrolHeader; + richeader_ie->buf = dinput.control_header; + richeader_ie->size = dinput.control_header_size; + ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index])); + + // Mandatory IE + ie_index = 3; + E2N_RICcontrolRequest_IEs_t *ies_indmsg = &IE_array[ie_index]; + ies_indmsg->criticality = E2N_Criticality_reject; + ies_indmsg->id = E2N_ProtocolIE_ID_id_RICcontrolMessage; + ies_indmsg->value.present = E2N_RICcontrolRequest_IEs__value_PR_RICcontrolMessage; + E2N_RICcontrolMessage_t *ricmsg_ie = &ies_indmsg->value.choice.RICcontrolMessage; + ricmsg_ie->buf = dinput.control_msg; + ricmsg_ie->size = dinput.control_msg_size; + ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index])); + + // Optional IE + ie_index = 4; + if (dinput.control_ack >= 0){ + E2N_RICcontrolRequest_IEs_t *ies_indtyp = &IE_array[ie_index]; + ies_indtyp->criticality = E2N_Criticality_reject; + ies_indtyp->id = E2N_ProtocolIE_ID_id_RICcontrolAckRequest; + ies_indtyp->value.present = E2N_RICcontrolRequest_IEs__value_PR_RICcontrolAckRequest; + E2N_RICcontrolAckRequest_t *ricackreq_ie = &ies_indtyp->value.choice.RICcontrolAckRequest; + *ricackreq_ie = dinput.control_ack; + ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index])); + } + + // Optional IE + ie_index = 5; + if(dinput.call_process_id_size > 0){ + E2N_RICcontrolRequest_IEs_t *ies_callprocid = &IE_array[ie_index]; + ies_callprocid->criticality = E2N_Criticality_reject; + ies_callprocid->id = E2N_ProtocolIE_ID_id_RICcallProcessID; + ies_callprocid->value.present = E2N_RICcontrolRequest_IEs__value_PR_RICcallProcessID; + E2N_RICcallProcessID_t *riccallprocessid_ie = &ies_callprocid->value.choice.RICcallProcessID; + riccallprocessid_ie->buf = dinput.call_process_id; + riccallprocessid_ie->size = dinput.call_process_id_size; + ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index])); + + } + return true; + +}; + + + + +bool ric_control_request:: get_fields(E2N_InitiatingMessage_t * init_msg, ric_control_helper &dout) +{ + if (init_msg == 0){ + error_string = "Invalid reference for E2AP Control_Request message in get_fields"; + return false; + } + + + for(int edx = 0; edx < init_msg->value.choice.RICcontrolRequest.protocolIEs.list.count; edx++) { + E2N_RICcontrolRequest_IEs_t *memb_ptr = init_msg->value.choice.RICcontrolRequest.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICcontrolHeader): + dout.control_header = memb_ptr->value.choice.RICcontrolHeader.buf; + dout.control_header_size = memb_ptr->value.choice.RICcontrolHeader.size; + break; + + case (E2N_ProtocolIE_ID_id_RICcontrolMessage): + dout.control_msg = memb_ptr->value.choice.RICcontrolMessage.buf; + dout.control_msg_size = memb_ptr->value.choice.RICcontrolMessage.size; + break; + + case (E2N_ProtocolIE_ID_id_RICcallProcessID): + dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf; + dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size; + break; + + case (E2N_ProtocolIE_ID_id_RICrequestID): + dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID; + dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber; + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + case (E2N_ProtocolIE_ID_id_RICcontrolAckRequest): + dout.control_ack = memb_ptr->value.choice.RICcontrolAckRequest; + break; + + default: + break; + } + + } + + return true; + +} + +E2N_InitiatingMessage_t * ric_control_request::get_message(void) { + return initMsg; +} diff --git a/src/xapp-formats/e2ap/e2ap_control.hpp b/src/xapp-formats/e2ap/e2ap_control.hpp new file mode 100644 index 0000000..57a2e2d --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_control.hpp @@ -0,0 +1,66 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_indication.h + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#ifndef E2AP_RIC_CONTROL_REQUEST_H_ +#define E2AP_RIC_CONTROL_REQUEST_H_ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include "e2ap_control_helper.hpp" + +#define NUM_CONTROL_REQUEST_IES 6 + + +class ric_control_request{ + +public: + ric_control_request(void); + ~ric_control_request(void); + + bool encode_e2ap_control_request(unsigned char *, size_t *, ric_control_helper &); + E2N_InitiatingMessage_t * get_message (void) ; + bool set_fields(E2N_InitiatingMessage_t *, ric_control_helper &); + bool get_fields(E2N_InitiatingMessage_t *, ric_control_helper &); + std::string get_error(void) const {return error_string ; }; +private: + + E2N_E2AP_PDU_t * e2ap_pdu_obj; + E2N_InitiatingMessage_t *initMsg; + E2N_RICcontrolRequest_IEs_t *IE_array; + std::string error_string; + + char errbuf[128]; + size_t errbuf_len = 128; +}; + + +#endif /* E2AP_RIC_CONTROL_REQUEST_H_ */ diff --git a/src/xapp-formats/e2ap/e2ap_control_helper.hpp b/src/xapp-formats/e2ap/e2ap_control_helper.hpp new file mode 100644 index 0000000..11f668c --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_control_helper.hpp @@ -0,0 +1,50 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_indication.h + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#ifndef CONTROL_HELPER_H +#define CONTROL_HELPER_H + +// control and indication helper objects are very similar and can be merged into one +// currently leaving them as two distnict entities till final design becomes clear + +typedef struct ric_control_helper ric_control_helper; + +struct ric_control_helper{ + ric_control_helper(void):req_id(1), req_seq_no(1), func_id(0), action_id(1), control_ack(-1), cause(0), sub_cause(0), control_status(1), control_msg(0), control_msg_size(0), control_header(0), control_header_size(0), call_process_id(0), call_process_id_size(0){}; + + long int req_id, req_seq_no, func_id, action_id, control_ack, cause, sub_cause, control_status; + + unsigned char* control_msg; + size_t control_msg_size; + + unsigned char* control_header; + size_t control_header_size; + + unsigned char *call_process_id; + size_t call_process_id_size; + +}; + +#endif diff --git a/src/xapp-formats/e2ap/e2ap_control_response.cc b/src/xapp-formats/e2ap/e2ap_control_response.cc new file mode 100644 index 0000000..23ef9ae --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_control_response.cc @@ -0,0 +1,415 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_control_response.c + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#include "e2ap_control_response.hpp" + +// Set up the initiating message and also allocate protocolIEs in container +// Note : this bypasses requirement to use ASN_SEQUENCE_ADD. We can directly +// assign pointers to the array in ProtocolIE. However, this also leaves us on the +// hook to manually clear the memory + +ric_control_response::ric_control_response(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t * )calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + successMsg = 0; + successMsg = (E2N_SuccessfulOutcome_t * )calloc(1, sizeof(E2N_SuccessfulOutcome_t)); + assert(successMsg != 0); + + successMsg->procedureCode = E2N_ProcedureCode_id_ricControl; + successMsg->criticality = E2N_Criticality_reject; + successMsg->value.present = E2N_SuccessfulOutcome__value_PR_RICcontrolAcknowledge; + + + unsuccessMsg = 0; + unsuccessMsg = (E2N_UnsuccessfulOutcome_t * )calloc(1, sizeof(E2N_UnsuccessfulOutcome_t)); + assert(unsuccessMsg != 0); + + + unsuccessMsg->procedureCode = E2N_ProcedureCode_id_ricControl; + unsuccessMsg->criticality = E2N_Criticality_reject; + unsuccessMsg->value.present = E2N_UnsuccessfulOutcome__value_PR_RICcontrolFailure; + + IE_array = 0; + IE_array = (E2N_RICcontrolAcknowledge_IEs_t *)calloc(NUM_CONTROL_ACKNOWLEDGE_IES, sizeof(E2N_RICcontrolAcknowledge_IEs_t)); + assert(IE_array != 0); + + E2N_RICcontrolAcknowledge_t * ric_acknowledge = &(successMsg->value.choice.RICcontrolAcknowledge); + for(int i = 0; i < NUM_CONTROL_ACKNOWLEDGE_IES; i++){ + ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), &(IE_array[i])); + } + + + IE_failure_array = 0; + IE_failure_array = (E2N_RICcontrolFailure_IEs_t *)calloc(NUM_CONTROL_FAILURE_IES, sizeof(E2N_RICcontrolFailure_IEs_t)); + assert(IE_failure_array != 0); + + E2N_RICcontrolFailure_t * ric_failure = &(unsuccessMsg->value.choice.RICcontrolFailure); + for(int i = 0; i < NUM_CONTROL_FAILURE_IES; i++){ + ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), &(IE_failure_array[i])); + } + +}; + + +// Clear assigned protocolIE list from RIC control_request IE container +ric_control_response::~ric_control_response(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing E2AP Control Response object memory"); + + E2N_RICcontrolAcknowledge_t * ric_acknowledge = &(successMsg->value.choice.RICcontrolAcknowledge); + for(int i = 0; i < ric_acknowledge->protocolIEs.list.size; i++){ + ric_acknowledge->protocolIEs.list.array[i] = 0; + } + if (ric_acknowledge->protocolIEs.list.size > 0){ + free(ric_acknowledge->protocolIEs.list.array); + ric_acknowledge->protocolIEs.list.array = 0; + ric_acknowledge->protocolIEs.list.count = 0; + } + + E2N_RICcontrolFailure_t * ric_failure = &(unsuccessMsg->value.choice.RICcontrolFailure); + for(int i = 0; i < ric_failure->protocolIEs.list.size; i++){ + ric_failure->protocolIEs.list.array[i] = 0; + } + if (ric_failure->protocolIEs.list.size > 0){ + free(ric_failure->protocolIEs.list.array); + ric_failure->protocolIEs.list.array = 0; + ric_failure->protocolIEs.list.count = 0; + } + + free(IE_array); + free(IE_failure_array); + free(successMsg); + free(unsuccessMsg); + + e2ap_pdu_obj->choice.initiatingMessage = 0; + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_initiatingMessage; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed E2AP Control Response object mempory"); +} + + +bool ric_control_response::encode_e2ap_control_response(unsigned char *buf, size_t *size, ric_control_helper & dinput, bool is_success){ + + bool res; + if (is_success){ + res = set_fields(successMsg, dinput); + } + else{ + res = set_fields(unsuccessMsg, dinput); + } + + if (!res){ + return false; + } + + + if (is_success){ + e2ap_pdu_obj->choice.successfulOutcome = successMsg; + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_successfulOutcome ; + } + else{ + e2ap_pdu_obj->choice.unsuccessfulOutcome = unsuccessMsg; + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_unsuccessfulOutcome ; + + } + + //xer_fprint(stdout, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + error_string = "Constraints failed for encoding control response. Reason = " + error_string; + return false; + } + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + return false; + } + else { + if(*size < retval.encoded){ + std::stringstream ss; + ss <<"Error encoding E2AP Control response . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + } + + *size = retval.encoded; + return true; + +} + +bool ric_control_response::set_fields(E2N_SuccessfulOutcome_t *successMsg, ric_control_helper &dinput){ + unsigned int ie_index; + + if (successMsg == 0){ + error_string = "Invalid reference for E2AP Control Acknowledge in set_fields"; + return false; + } + + // for(i = 0; i < NUM_CONTROL_ACKNOWLEDGE_IES;i++){ + // memset(&(IE_array[i]), 0, sizeof(RICcontrolAcknowledge_IEs_t)); + // } + + //E2N_RICcontrolAcknowledge_t * ric_acknowledge = &(successMsg->value.choice.RICcontrolAcknowledge); + //ric_acknowledge->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICcontrolAcknowledge_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICcontrolAcknowledge_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = dinput.req_id; + ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no; + //ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_ricreq); + + ie_index = 1; + E2N_RICcontrolAcknowledge_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICcontrolAcknowledge_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = dinput.func_id; + //ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_ranfunc); + + // ie_index = 2; + // E2N_RICcontrolAcknowledge_IEs_t *ies_riccallprocessid = &IE_array[ie_index]; + // ies_riccallprocessid->criticality = E2N_Criticality_reject; + // ies_riccallprocessid->id = E2N_ProtocolIE_ID_id_RICcallProcessID; + // ies_riccallprocessid->value.present = E2N_RICcontrolAcknowledge_IEs__value_PR_RICcallProcessID; + // RICcallProcessID_t *riccallprocessid_ie = &ies_riccallprocessid->value.choice.RICcallProcessID; + // riccallprocessid_ie->buf = dinput.call_process_id; + // riccallprocessid_ie->size = dinput.call_process_id_size; + // ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_riccallprocessid); + + ie_index = 2; + E2N_RICcontrolAcknowledge_IEs_t *ies_ric_cause = &IE_array[ie_index]; + ies_ric_cause->criticality = E2N_Criticality_reject; + ies_ric_cause->id = E2N_ProtocolIE_ID_id_RICcontrolStatus; + ies_ric_cause->value.present = E2N_RICcontrolAcknowledge_IEs__value_PR_RICcontrolStatus; + ies_ric_cause->value.choice.RICcontrolStatus = dinput.control_status; + //ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_ric_cause); + + return true; + +}; + +bool ric_control_response::set_fields(E2N_UnsuccessfulOutcome_t *unsuccessMsg, ric_control_helper &dinput){ + unsigned int ie_index; + + if (unsuccessMsg == 0){ + error_string = "Invalid reference for E2AP Control Failure in set_fields"; + return false; + } + + // for(i = 0; i < NUM_CONTROL_FAILURE_IES;i++){ + // memset(&(IE_failure_array[i]), 0, sizeof(RICcontrolFailure_IEs_t)); + // } + + //E2N_RICcontrolFailure_t * ric_failure = &(unsuccessMsg->value.choice.RICcontrolFailure); + //ric_failure->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICcontrolFailure_IEs_t *ies_ricreq = &IE_failure_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICcontrolFailure_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &(ies_ricreq->value.choice.RICrequestID); + ricrequest_ie->ricRequestorID = dinput.req_id; + ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no; + //ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_ricreq); + + ie_index = 1; + E2N_RICcontrolFailure_IEs_t *ies_ranfunc = &IE_failure_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICcontrolFailure_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &(ies_ranfunc->value.choice.RANfunctionID); + *ranfunction_ie = dinput.func_id; + //ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_ranfunc); + + // ie_index = 2; + // E2N_RICcontrolFailure_IEs_t *ies_riccallprocessid = &IE_failure_array[i]; + // ies_riccallprocessid->criticality = E2N_Criticality_reject; + // ies_riccallprocessid->id = E2N_ProtocolIE_ID_id_RICcallProcessID; + // ies_riccallprocessid->value.present = E2N_RICcontrolFailure_IEs__value_PR_RICcallProcessID; + // RICcallProcessID_t *riccallprocessid_ie = &(ies_riccallprocessid->value.choice.RICcallProcessID); + // riccallprocessid_ie->buf = dinput.call_process_id; + // riccallprocessid_ie->size = dinput.call_process_id_size; + // ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_riccallprocessid); + + ie_index = 2; + E2N_RICcontrolFailure_IEs_t *ies_ric_cause = &IE_failure_array[ie_index]; + ies_ric_cause->criticality = E2N_Criticality_ignore; + ies_ric_cause->id = E2N_ProtocolIE_ID_id_RICcause; + ies_ric_cause->value.present = E2N_RICcontrolFailure_IEs__value_PR_RICcause; + E2N_RICcause_t * ric_cause = &(ies_ric_cause->value.choice.RICcause); + ric_cause->present = (E2N_RICcause_PR)dinput.cause; + + switch(dinput.cause){ + case E2N_RICcause_PR_radioNetwork: + ric_cause->choice.radioNetwork = dinput.sub_cause; + break; + case E2N_RICcause_PR_transport: + ric_cause->choice.transport = dinput.sub_cause; + break; + case E2N_RICcause_PR_protocol: + ric_cause->choice.protocol= dinput.sub_cause; + break; + case E2N_RICcause_PR_misc: + ric_cause->choice.misc = dinput.sub_cause; + break; + case E2N_RICcause_PR_ric: + ric_cause->choice.ric = dinput.sub_cause; + break; + default: + std::cout <<"Error ! Illegal cause enum" << dinput.cause << std::endl; + return false; + } + + //ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_ric_cause); + return true; + +}; + + + + +bool ric_control_response:: get_fields(E2N_SuccessfulOutcome_t * success_msg, ric_control_helper &dout) +{ + if (success_msg == 0){ + error_string = "Invalid reference for E2AP Control Acknowledge message in get_fields"; + return false; + } + + + for(int edx = 0; edx < success_msg->value.choice.RICcontrolAcknowledge.protocolIEs.list.count; edx++) { + E2N_RICcontrolAcknowledge_IEs_t *memb_ptr = success_msg->value.choice.RICcontrolAcknowledge.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + + case (E2N_ProtocolIE_ID_id_RICcallProcessID): + dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf; + dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size; + break; + + case (E2N_ProtocolIE_ID_id_RICrequestID): + dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID; + dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber; + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + case (E2N_ProtocolIE_ID_id_RICcause): + dout.control_status = memb_ptr->value.choice.RICcontrolStatus; + break; + + } + + } + + return true; + +} + + +bool ric_control_response:: get_fields(E2N_UnsuccessfulOutcome_t * unsuccess_msg, ric_control_helper &dout) +{ + if (unsuccess_msg == 0){ + error_string = "Invalid reference for E2AP Control Failure message in get_fields"; + return false; + } + + + for(int edx = 0; edx < unsuccess_msg->value.choice.RICcontrolFailure.protocolIEs.list.count; edx++) { + E2N_RICcontrolFailure_IEs_t *memb_ptr = unsuccess_msg->value.choice.RICcontrolFailure.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + + case (E2N_ProtocolIE_ID_id_RICcallProcessID): + dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf; + dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size; + break; + + case (E2N_ProtocolIE_ID_id_RICrequestID): + dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID; + dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber; + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + + case (E2N_ProtocolIE_ID_id_RICcause): + dout.cause = memb_ptr->value.choice.RICcause.present; + switch(dout.cause){ + case E2N_RICcause_PR_radioNetwork : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.radioNetwork; + break; + + case E2N_RICcause_PR_transport : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.transport; + break; + + case E2N_RICcause_PR_protocol : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.protocol; + break; + + case E2N_RICcause_PR_misc : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.misc; + break; + + case E2N_RICcause_PR_ric : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.ric; + break; + + default: + dout.sub_cause = -1; + break; + } + + default: + break; + } + + } + + return true; + +} + diff --git a/src/xapp-formats/e2ap/e2ap_control_response.hpp b/src/xapp-formats/e2ap/e2ap_control_response.hpp new file mode 100644 index 0000000..6880e48 --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_control_response.hpp @@ -0,0 +1,79 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_indication.h + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#ifndef E2AP_RIC_CONTROL_RESPONSE_H_ +#define E2AP_RIC_CONTROL_RESPONSE_H_ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "e2ap_control_helper.hpp" + +#define NUM_CONTROL_ACKNOWLEDGE_IES 3 +#define NUM_CONTROL_FAILURE_IES 3 + + +class ric_control_response{ + +public: + ric_control_response(void); + ~ric_control_response(void); + + bool encode_e2ap_control_response(unsigned char *, size_t *, ric_control_helper &, bool); + + + bool set_fields(E2N_SuccessfulOutcome_t *, ric_control_helper &); + bool get_fields(E2N_SuccessfulOutcome_t *, ric_control_helper &); + + bool set_fields(E2N_UnsuccessfulOutcome_t *, ric_control_helper &); + bool get_fields(E2N_UnsuccessfulOutcome_t *, ric_control_helper &); + + std::string get_error(void) const {return error_string ; }; + +private: + + E2N_E2AP_PDU_t * e2ap_pdu_obj; + E2N_SuccessfulOutcome_t * successMsg; + E2N_UnsuccessfulOutcome_t * unsuccessMsg; + + E2N_RICcontrolAcknowledge_IEs_t *IE_array; + E2N_RICcontrolFailure_IEs_t *IE_failure_array; + + std::string error_string; + + char errbuf[128]; + size_t errbuf_len = 128; +}; + + +#endif /* E2AP_RIC_CONTROL_RESPONSE_H_ */ diff --git a/src/xapp-formats/e2ap/e2ap_indication.cc b/src/xapp-formats/e2ap/e2ap_indication.cc new file mode 100644 index 0000000..33b2095 --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_indication.cc @@ -0,0 +1,283 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_indication.c + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#include "e2ap_indication.hpp" + +// Set up memory allocations for each IE for encoding +// We are responsible for memory management for each IE for encoding +// Hence destructor should clear out memory +// When decoding, we rely on asn1c macro (ASN_STRUCT_FREE to be called +// for releasing memory by external calling function) +ric_indication::ric_indication(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t * )calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + initMsg = 0; + initMsg = (E2N_InitiatingMessage_t * )calloc(1, sizeof(E2N_InitiatingMessage_t)); + assert(initMsg != 0); + + IE_array = 0; + IE_array = (E2N_RICindication_IEs_t *)calloc(NUM_INDICATION_IES, sizeof(E2N_RICindication_IEs_t)); + assert(IE_array != 0); + + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_initiatingMessage; + e2ap_pdu_obj->choice.initiatingMessage = initMsg; + + + + +}; + + + +// Clear assigned protocolIE list from RIC indication IE container +ric_indication::~ric_indication(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing E2AP Indication object memory"); + E2N_RICindication_t *ricIndication = &(initMsg->value.choice.RICindication); + for(int i = 0; i < ricIndication->protocolIEs.list.size; i++){ + ricIndication->protocolIEs.list.array[i] = 0; + } + if (ricIndication->protocolIEs.list.size > 0){ + free(ricIndication->protocolIEs.list.array); + ricIndication->protocolIEs.list.array = 0; + ricIndication->protocolIEs.list.count = 0; + ricIndication->protocolIEs.list.size = 0; + } + + free(IE_array); + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed E2AP Indication object mempory"); +} + + +bool ric_indication::encode_e2ap_indication(unsigned char *buf, size_t *size, ric_indication_helper & dinput){ + + initMsg->procedureCode = E2N_ProcedureCode_id_ricIndication; + initMsg->criticality = E2N_Criticality_ignore; + initMsg->value.present = E2N_InitiatingMessage__value_PR_RICindication; + + bool res; + asn_enc_rval_t retval; + + res = set_fields(initMsg, dinput); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + error_string = "Error encoding E2AP Indication message. Reason = " + error_string; + return false; + } + + // std::cout <<"Constraint check ok ...." << std::endl; + // xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj); + + retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + return false; + } + + else { + if(*size < retval.encoded){ + std::stringstream ss; + ss <<"Error encoding E2AP Indication . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + } + + *size = retval.encoded; + return true; + +} + +bool ric_indication::set_fields(E2N_InitiatingMessage_t *initMsg, ric_indication_helper &dinput){ + unsigned int ie_index; + + if (initMsg == 0){ + error_string = "Invalid reference for E2AP Indication message in set_fields"; + return false; + } + + + E2N_RICindication_t * ric_indication = &(initMsg->value.choice.RICindication); + ric_indication->protocolIEs.list.count = 0; + + ie_index = 0; + + E2N_RICindication_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICindication_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = dinput.req_id; + ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 1; + E2N_RICindication_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICindication_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = dinput.func_id; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 2; + E2N_RICindication_IEs_t *ies_actid = &IE_array[ie_index]; + ies_actid->criticality = E2N_Criticality_reject; + ies_actid->id = E2N_ProtocolIE_ID_id_RICactionID; + ies_actid->value.present = E2N_RICindication_IEs__value_PR_RICactionID; + E2N_RICactionID_t *ricaction_ie = &ies_actid->value.choice.RICactionID; + *ricaction_ie = dinput.action_id; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 3; + E2N_RICindication_IEs_t *ies_ricsn = &IE_array[ie_index]; + ies_ricsn->criticality = E2N_Criticality_reject; + ies_ricsn->id = E2N_ProtocolIE_ID_id_RICindicationSN; + ies_ricsn->value.present = E2N_RICindication_IEs__value_PR_RICindicationSN; + E2N_RICindicationSN_t *ricsn_ie = &ies_ricsn->value.choice.RICindicationSN; + *ricsn_ie = dinput.indication_sn; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + + ie_index = 4; + E2N_RICindication_IEs_t *ies_indtyp = &IE_array[ie_index]; + ies_indtyp->criticality = E2N_Criticality_reject; + ies_indtyp->id = E2N_ProtocolIE_ID_id_RICindicationType; + ies_indtyp->value.present = E2N_RICindication_IEs__value_PR_RICindicationType; + E2N_RICindicationType_t *rictype_ie = &ies_indtyp->value.choice.RICindicationType; + *rictype_ie = dinput.indication_type; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 5; + E2N_RICindication_IEs_t *ies_richead = &IE_array[ie_index]; + ies_richead->criticality = E2N_Criticality_reject; + ies_richead->id = E2N_ProtocolIE_ID_id_RICindicationHeader; + ies_richead->value.present = E2N_RICindication_IEs__value_PR_RICindicationHeader; + E2N_RICindicationHeader_t *richeader_ie = &ies_richead->value.choice.RICindicationHeader; + richeader_ie->buf = dinput.indication_header; + richeader_ie->size = dinput.indication_header_size; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 6; + E2N_RICindication_IEs_t *ies_indmsg = &IE_array[ie_index]; + ies_indmsg->criticality = E2N_Criticality_reject; + ies_indmsg->id = E2N_ProtocolIE_ID_id_RICindicationMessage; + ies_indmsg->value.present = E2N_RICindication_IEs__value_PR_RICindicationMessage; + E2N_RICindicationMessage_t *ricmsg_ie = &ies_indmsg->value.choice.RICindicationMessage; + ricmsg_ie->buf = dinput.indication_msg; + ricmsg_ie->size = dinput.indication_msg_size; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + + // optional call process id .. + if (dinput.call_process_id_size > 0){ + ie_index = 7; + E2N_RICindication_IEs_t *ies_ind_callprocessid = &IE_array[ie_index]; + ies_ind_callprocessid->criticality = E2N_Criticality_reject; + ies_ind_callprocessid->id = E2N_ProtocolIE_ID_id_RICcallProcessID; + ies_ind_callprocessid->value.present = E2N_RICindication_IEs__value_PR_RICcallProcessID; + E2N_RICcallProcessID_t *riccallprocessid_ie = &ies_ind_callprocessid->value.choice.RICcallProcessID; + riccallprocessid_ie->buf = dinput.indication_msg; + riccallprocessid_ie->size = dinput.indication_msg_size; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + } + + return true; + +}; + + + + +bool ric_indication:: get_fields(E2N_InitiatingMessage_t * init_msg, ric_indication_helper &dout) +{ + if (init_msg == 0){ + error_string = "Invalid reference for E2AP Indication message in get_fields"; + return false; + } + + + for(int edx = 0; edx < init_msg->value.choice.RICindication.protocolIEs.list.count; edx++) { + E2N_RICindication_IEs_t *memb_ptr = init_msg->value.choice.RICindication.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICindicationHeader): + dout.indication_header = memb_ptr->value.choice.RICindicationHeader.buf; + dout.indication_header_size = memb_ptr->value.choice.RICindicationHeader.size; + break; + + case (E2N_ProtocolIE_ID_id_RICindicationMessage): + dout.indication_msg = memb_ptr->value.choice.RICindicationMessage.buf; + dout.indication_msg_size = memb_ptr->value.choice.RICindicationMessage.size; + break; + + case (E2N_ProtocolIE_ID_id_RICrequestID): + dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID; + dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber; + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + case (E2N_ProtocolIE_ID_id_RICindicationSN): + dout.indication_sn = memb_ptr->value.choice.RICindicationSN; + break; + + case (E2N_ProtocolIE_ID_id_RICindicationType): + dout.indication_type = memb_ptr->value.choice.RICindicationType; + break; + + case (E2N_ProtocolIE_ID_id_RICactionID): + dout.action_id = memb_ptr->value.choice.RICactionID; + break; + + case (E2N_ProtocolIE_ID_id_RICcallProcessID): + dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf; + dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size; + + default: + break; + } + + } + + return true; + +} + +E2N_InitiatingMessage_t * ric_indication::get_message(void) { + return initMsg; +} diff --git a/src/xapp-formats/e2ap/e2ap_indication.hpp b/src/xapp-formats/e2ap/e2ap_indication.hpp new file mode 100644 index 0000000..af43086 --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_indication.hpp @@ -0,0 +1,67 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_indication.h + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#ifndef E2AP_RIC_INDICATION_H_ +#define E2AP_RIC_INDICATION_H_ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include "e2ap_indication_helper.hpp" + +#define NUM_INDICATION_IES 8 + + + +class ric_indication{ + +public: + ric_indication(void); + ~ric_indication(void); + + bool encode_e2ap_indication(unsigned char *, size_t *, ric_indication_helper &); + E2N_InitiatingMessage_t * get_message (void) ; + bool set_fields(E2N_InitiatingMessage_t *, ric_indication_helper &); + bool get_fields(E2N_InitiatingMessage_t *, ric_indication_helper &); + std::string get_error(void) const {return error_string ; }; + +private: + + E2N_E2AP_PDU_t * e2ap_pdu_obj; + E2N_InitiatingMessage_t *initMsg; + E2N_RICindication_IEs_t *IE_array; + std::string error_string; + char errbuf[128]; + size_t errbuf_len = 128; +}; + + +#endif /* E2AP_RIC_INDICATION_H_ */ diff --git a/src/xapp-formats/e2ap/e2ap_indication_helper.hpp b/src/xapp-formats/e2ap/e2ap_indication_helper.hpp new file mode 100644 index 0000000..276a2a7 --- /dev/null +++ b/src/xapp-formats/e2ap/e2ap_indication_helper.hpp @@ -0,0 +1,47 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * ric_indication.h + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + + +#ifndef E2AP_INDICATION_HELPER_ +#define E2AP_INDICATION_HELPER_ + +typedef struct ric_indication_helper ric_indication_helper; + +struct ric_indication_helper{ + ric_indication_helper(void) : req_id(1), req_seq_no(1), func_id(0), action_id(1), indication_type(0), indication_sn(0), indication_msg(0), indication_msg_size(0), indication_header(0), indication_header_size(0), call_process_id(0), call_process_id_size(0) {}; + long int req_id, req_seq_no, func_id, action_id, indication_type, indication_sn; + + unsigned char* indication_msg; + size_t indication_msg_size; + + unsigned char* indication_header; + size_t indication_header_size; + + unsigned char *call_process_id; + size_t call_process_id_size; + +}; + +#endif diff --git a/src/xapp-formats/e2ap/generic_helpers.hpp b/src/xapp-formats/e2ap/generic_helpers.hpp new file mode 100644 index 0000000..32c019a --- /dev/null +++ b/src/xapp-formats/e2ap/generic_helpers.hpp @@ -0,0 +1,49 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + + +#pragma once +#ifndef GENERIC_HELPERS +#define GENERIC_HELPERS + +#include + +/* Utilities */ + +class octet_helper { + +public: + octet_helper(void):_ref(NULL), _size(0){}; + octet_helper(const void *ref, int size):_ref(ref), _size(size){}; + void set_ref(const void *ref){ + _ref = ref; + } + + void set_size(size_t size){ + _size = size; + } + + const void * get_ref(void){return _ref ; }; + size_t get_size(void) const {return _size ; } ; + +private: + const void *_ref; + size_t _size; +}; + +#endif diff --git a/src/xapp-formats/e2ap/response_helper.hpp b/src/xapp-formats/e2ap/response_helper.hpp new file mode 100644 index 0000000..b370ff2 --- /dev/null +++ b/src/xapp-formats/e2ap/response_helper.hpp @@ -0,0 +1,181 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + +#pragma once + +#ifndef S_RESPONSE_HELPER_ +#define S_RESPONSE_HELPER_ + +#include +#include + +/* Simple structure to store action for RICaction of the Subscription response based on E2 v0.31 */ +struct ActionResponse { +public: + ActionResponse(int id): _is_admit(true), _id(id), _cause(-1), _sub_cause(-1){}; + ActionResponse(int id, int cause, int sub_cause): _is_admit(false), _id(id), _cause(cause), _sub_cause(sub_cause){}; + + int get_id() const{ + return _id; + }; + + int get_cause() const{ + return _cause; + }; + + int get_sub_cause() const{ + return _sub_cause; + }; + + bool is_admitted(void){ + return _is_admit; + }; + +private: + + bool _is_admit; + int _id, _cause, _sub_cause; + +}; + + +struct subscription_response_helper { + +public: + + using action_t = std::vector; + + subscription_response_helper(void){ + _action_admitted_ref = std::make_unique(); + _action_not_admitted_ref = std::make_unique(); + + }; + + // copy operator + subscription_response_helper(const subscription_response_helper &he ){ + _action_admitted_ref = std::make_unique(); + _action_not_admitted_ref = std::make_unique(); + + _req_id = he.get_request_id(); + _req_seq_no = he.get_req_seq(); + _func_id = he.get_function_id(); + + // Take care of the actions + for (auto const & e: *(he.get_admitted_list())){ + add_action(e.get_id()); + } + + for(auto const & e: *(he.get_not_admitted_list())){ + add_action(e.get_id(), e.get_cause(), e.get_sub_cause()); + }; + } + + + // assignment operator + void operator=(const subscription_response_helper & he){ + _action_admitted_ref = std::make_unique(); + _action_not_admitted_ref = std::make_unique(); + + _req_id = he.get_request_id(); + _req_seq_no = he.get_req_seq(); + _func_id = he.get_function_id(); + + + // Take care of the actions + for (auto const & e: *(he.get_admitted_list())){ + add_action(e.get_id()); + } + + for(auto const & e: *(he.get_not_admitted_list())){ + add_action(e.get_id(), e.get_cause(), e.get_sub_cause()); + }; + + } + + action_t * get_admitted_list (void ) const {return _action_admitted_ref.get();}; + action_t * get_not_admitted_list (void ) const{return _action_not_admitted_ref.get();}; + + void set_request(int id, int seq_no){ + _req_id = id; + _req_seq_no = seq_no; + + }; + + void clear(void){ + _action_admitted_ref.get()->clear(); + _action_not_admitted_ref.get()->clear(); + } + + + void set_function_id(int id){ + _func_id = id; + }; + + void add_action(int id){ + ActionResponse a(id) ; + _action_admitted_ref.get()->push_back(a); + }; + + void add_action(int id, int cause, int sub_cause){ + ActionResponse a (id, cause, sub_cause); + _action_not_admitted_ref.get()->push_back(a); + }; + + + int get_request_id(void) const{ + return _req_id; + } + + int get_req_seq(void) const{ + return _req_seq_no; + } + + int get_function_id(void) const{ + return _func_id; + } + + std::string to_string(void){ + std::string Info; + Info += "Request ID = " + std::to_string(_req_id) + "\n"; + Info += "Request Sequence No = " + std::to_string(_req_seq_no) + "\n"; + Info += "RAN Function ID = " + std::to_string(_func_id) + "\n"; + Info += "Actions Admitted =\n"; + int i = 0; + for(auto & e: *(_action_admitted_ref)){ + Info += std::to_string(i) + ": ID=" + std::to_string(e.get_id()) + "\n"; + i++; + } + Info += "Actions Not Admitted =\n"; + i = 0; + for(auto & e: *(_action_not_admitted_ref)){ + Info += std::to_string(i) + ": ID=" + std::to_string(e.get_id()) + ": Cause =" + std::to_string(e.get_cause()) + ": Sub-Cause=" + std::to_string(e.get_sub_cause()) + "\n"; + i++; + } + + return Info; + } + +private: + int _req_id, _req_seq_no, _func_id; + std::unique_ptr _action_admitted_ref; + std::unique_ptr _action_not_admitted_ref; + +}; + + +#endif diff --git a/src/xapp-formats/e2ap/subscription_delete_request.cc b/src/xapp-formats/e2ap/subscription_delete_request.cc new file mode 100644 index 0000000..d103d2e --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_delete_request.cc @@ -0,0 +1,180 @@ + + +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + + +#include "subscription_delete_request.hpp" + +subscription_delete::subscription_delete(void){ + + _name = "default"; + + e2ap_pdu_obj = (E2N_E2AP_PDU_t * )calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + initMsg = (E2N_InitiatingMessage_t * )calloc(1, sizeof(E2N_InitiatingMessage_t)); + assert(initMsg != 0); + + IE_array = (E2N_RICsubscriptionDeleteRequest_IEs_t *)calloc(NUM_SUBSCRIPTION_DELETE_IES, sizeof(E2N_RICsubscriptionDeleteRequest_IEs_t)); + assert(IE_array != 0); + + E2N_RICsubscriptionDeleteRequest_t * subscription_delete = &(initMsg->value.choice.RICsubscriptionDeleteRequest); + for(int i = 0; i < NUM_SUBSCRIPTION_DELETE_IES; i++){ + ASN_SEQUENCE_ADD(&subscription_delete->protocolIEs, &(IE_array[i])); + } + +}; + + + +// Clear assigned protocolIE list from RIC indication IE container +subscription_delete::~subscription_delete(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing subscription delete request object memory"); + E2N_RICsubscriptionDeleteRequest_t * subscription_delete = &(initMsg->value.choice.RICsubscriptionDeleteRequest); + + for(int i = 0; i < subscription_delete->protocolIEs.list.size; i++){ + subscription_delete->protocolIEs.list.array[i] = 0; + } + + if (subscription_delete->protocolIEs.list.size > 0){ + free(subscription_delete->protocolIEs.list.array); + subscription_delete->protocolIEs.list.count = 0; + subscription_delete->protocolIEs.list.size = 0; + subscription_delete->protocolIEs.list.array = 0; + } + + free(IE_array); + free(initMsg); + e2ap_pdu_obj->choice.initiatingMessage = 0; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed subscription delete request object memory"); + + +}; + + +bool subscription_delete::encode_e2ap_subscription(unsigned char *buf, size_t *size, subscription_helper &dinput){ + + e2ap_pdu_obj->choice.initiatingMessage = initMsg; + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_initiatingMessage; + set_fields( dinput); + + initMsg->procedureCode = E2N_ProcedureCode_id_ricSubscriptionDelete; + initMsg->criticality = E2N_Criticality_reject; + initMsg->value.present = E2N_InitiatingMessage__value_PR_RICsubscriptionDeleteRequest; + + //xer_fprint(stdout, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + error_string = "Constraints failed for encoding subscription delete request. Reason = " + error_string; + return false; + } + + asn_enc_rval_t res = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(res.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding Subscription Delete Request. Reason = " + error_string; + return false; + } + else { + if(*size < res.encoded){ + std::stringstream ss; + ss <<"Error encoding Subscription Delete Request . Reason = encoded pdu size " << res.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + res.encoded = -1; + return false; + } + } + + *size = res.encoded; + return true; + +} + + +bool subscription_delete::set_fields( subscription_helper &helper){ + unsigned int ie_index; + + ie_index = 0; + E2N_RICsubscriptionDeleteRequest_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICsubscriptionDeleteRequest_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = helper.get_request_id(); + ricrequest_ie->ricRequestSequenceNumber = helper.get_req_seq(); + + + + ie_index = 1; + E2N_RICsubscriptionDeleteRequest_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICsubscriptionDeleteRequest_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = helper.get_function_id(); + + + return true; +}; + + + + +bool subscription_delete:: get_fields(E2N_InitiatingMessage_t * init_msg, subscription_helper & dout) +{ + + if (init_msg == 0){ + error_string = "Invalid reference for initiating message for get string"; + return false; + } + + E2N_RICrequestID_t *requestid; + E2N_RANfunctionID_t * ranfunctionid; + + for(int edx = 0; edx < init_msg->value.choice.RICsubscriptionDeleteRequest.protocolIEs.list.count; edx++) { + E2N_RICsubscriptionDeleteRequest_IEs_t *memb_ptr = init_msg->value.choice.RICsubscriptionDeleteRequest.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICrequestID): + requestid = &memb_ptr->value.choice.RICrequestID; + dout.set_request(requestid->ricRequestorID, requestid->ricRequestSequenceNumber); + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + ranfunctionid = &memb_ptr->value.choice.RANfunctionID; + dout.set_function_id(*ranfunctionid); + break; + + } + + //asn_fprint(stdout, &asn_DEF_E2N_E2AP_PDU, e2pdu); + } + + return true; +} + + + diff --git a/src/xapp-formats/e2ap/subscription_delete_request.hpp b/src/xapp-formats/e2ap/subscription_delete_request.hpp new file mode 100644 index 0000000..e3c1d4e --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_delete_request.hpp @@ -0,0 +1,67 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + +#pragma once + +#ifndef S_DELETE_ +#define S_DELETE_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "subscription_helper.hpp" + +#define NUM_SUBSCRIPTION_DELETE_IES 2 + +class subscription_delete{ +public: + + subscription_delete(void); + ~subscription_delete(void); + + bool encode_e2ap_subscription(unsigned char *, size_t *, subscription_helper &); + bool set_fields(subscription_helper &); + bool get_fields(E2N_InitiatingMessage_t *, subscription_helper &); + + std::string get_error(void) const { + return error_string ; + } + +private: + + E2N_InitiatingMessage_t *initMsg; + E2N_E2AP_PDU_t * e2ap_pdu_obj; + + E2N_RICsubscriptionDeleteRequest_IEs_t * IE_array; + + + char errbuf[128]; + size_t errbuf_len = 128; + std::string _name; + std::string error_string; +}; + + + +#endif diff --git a/src/xapp-formats/e2ap/subscription_delete_response.cc b/src/xapp-formats/e2ap/subscription_delete_response.cc new file mode 100644 index 0000000..c1c166c --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_delete_response.cc @@ -0,0 +1,292 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + + +#include "subscription_delete_response.hpp" + +/* The xAPP need only worry about the get_fields from a response, since it does +not generate a response. Generating response however is included to support testing. +*/ + + +// Primarly for generation +subscription_delete_response::subscription_delete_response(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t *)calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + successMsg = 0; + successMsg = (E2N_SuccessfulOutcome_t *)calloc(1, sizeof(E2N_SuccessfulOutcome_t)); + assert(successMsg != 0); + + unsuccessMsg = 0; + unsuccessMsg = (E2N_UnsuccessfulOutcome_t *)calloc(1, sizeof(E2N_UnsuccessfulOutcome_t)); + assert(unsuccessMsg != 0); + + IE_array = 0; + IE_array = (E2N_RICsubscriptionDeleteResponse_IEs_t *)calloc(NUM_SUBSCRIPTION_DELETE_RESPONSE_IES, sizeof(E2N_RICsubscriptionDeleteResponse_IEs_t)); + assert(IE_array != 0); + + IE_Failure_array = 0; + IE_Failure_array = (E2N_RICsubscriptionDeleteFailure_IEs_t *)calloc(NUM_SUBSCRIPTION_DELETE_FAILURE_IES, sizeof(E2N_RICsubscriptionDeleteFailure_IEs_t)); + assert(IE_Failure_array != 0); + + + +}; + + + +// Clear assigned protocolIE list from E2N_RIC indication IE container +subscription_delete_response::~subscription_delete_response(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing subscription delete response memory"); + E2N_RICsubscriptionDeleteResponse_t * ric_subscription_delete_response = &(successMsg->value.choice.RICsubscriptionDeleteResponse); + + for(unsigned int i = 0; i < ric_subscription_delete_response->protocolIEs.list.size ; i++){ + ric_subscription_delete_response->protocolIEs.list.array[i] = 0; + } + + + E2N_RICsubscriptionDeleteFailure_t * ric_subscription_failure = &(unsuccessMsg->value.choice.RICsubscriptionDeleteFailure); + for(unsigned int i = 0; i < ric_subscription_failure->protocolIEs.list.size; i++){ + ric_subscription_failure->protocolIEs.list.array[i] = 0; + } + + free(IE_array); + free(IE_Failure_array); + + ASN_STRUCT_FREE(asn_DEF_E2N_SuccessfulOutcome, successMsg); + + ASN_STRUCT_FREE(asn_DEF_E2N_UnsuccessfulOutcome, unsuccessMsg); + + e2ap_pdu_obj->choice.successfulOutcome = NULL; + e2ap_pdu_obj->choice.unsuccessfulOutcome = NULL; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed subscription delete response memory"); + +}; + + +bool subscription_delete_response::encode_e2ap_subscription_delete_response(unsigned char *buf, size_t *size, subscription_response_helper &dinput, bool is_success){ + + bool res; + + if(is_success){ + res = set_fields(successMsg, dinput); + if (!res){ + return false; + } + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_successfulOutcome; + e2ap_pdu_obj->choice.successfulOutcome = successMsg; + } + else{ + res = set_fields(unsuccessMsg, dinput); + if(! res){ + return false; + } + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_unsuccessfulOutcome; + e2ap_pdu_obj->choice.unsuccessfulOutcome = unsuccessMsg; + } + + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + return false; + } + + //xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj); + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding subcription delete response. Reason = " + error_string; + return false; + } + else { + if(*size < retval.encoded){ + std::stringstream ss; + ss <<"Error encoding Subscription Delete Response . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + retval.encoded = -1; + return false; + } + } + + *size = retval.encoded; + return true; + +} + +bool subscription_delete_response::set_fields(E2N_SuccessfulOutcome_t *success, subscription_response_helper &helper){ + + if (success == 0){ + error_string = "Invalid reference to success message in set fields subscription delete response"; + return false; + } + + unsigned int ie_index; + + success->procedureCode = E2N_ProcedureCode_id_ricSubscriptionDelete; + success->criticality = E2N_Criticality_reject; + success->value.present = E2N_SuccessfulOutcome__value_PR_RICsubscriptionDeleteResponse; + + E2N_RICsubscriptionDeleteResponse_t * subscription_delete_response = &(success->value.choice.RICsubscriptionDeleteResponse); + subscription_delete_response->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICsubscriptionDeleteResponse_IEs_t *ies_ricreq = &IE_array[ie_index]; + + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICsubscriptionDeleteResponse_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = helper.get_request_id(); + ricrequest_ie->ricRequestSequenceNumber = helper.get_req_seq(); + ASN_SEQUENCE_ADD(&subscription_delete_response->protocolIEs, ies_ricreq); + + + ie_index = 1; + E2N_RICsubscriptionDeleteResponse_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICsubscriptionDeleteResponse_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = helper.get_function_id(); + ASN_SEQUENCE_ADD(&subscription_delete_response->protocolIEs, ies_ranfunc); + + return true; + + +} + +bool subscription_delete_response:: get_fields(E2N_SuccessfulOutcome_t * success_msg, subscription_response_helper & dout) +{ + + if (success_msg == 0){ + error_string = "Invalid reference to success message inn get fields subscription delete response"; + return false; + } + + E2N_RICrequestID_t *requestid; + E2N_RANfunctionID_t * ranfunctionid; + + for(int edx = 0; edx < success_msg->value.choice.RICsubscriptionDeleteResponse.protocolIEs.list.count; edx++) { + E2N_RICsubscriptionDeleteResponse_IEs_t *memb_ptr = success_msg->value.choice.RICsubscriptionDeleteResponse.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICrequestID): + requestid = &memb_ptr->value.choice.RICrequestID; + dout.set_request(requestid->ricRequestorID, requestid->ricRequestSequenceNumber); + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + ranfunctionid = &memb_ptr->value.choice.RANfunctionID; + dout.set_function_id(*ranfunctionid); + break; + } + + } + + return true; + //asn_fprint(stdout, &asn_DEF_E2AP_PDU, e2pdu); +} + + +bool subscription_delete_response::set_fields(E2N_UnsuccessfulOutcome_t *unsuccess, subscription_response_helper &helper){ + + if (unsuccess == 0){ + error_string = "Invalid reference to unsuccess message in set fields subscription delete response"; + return false; + } + + unsigned int ie_index; + + unsuccess->procedureCode = E2N_ProcedureCode_id_ricSubscriptionDelete; + unsuccess->criticality = E2N_Criticality_reject; + unsuccess->value.present = E2N_UnsuccessfulOutcome__value_PR_RICsubscriptionDeleteFailure; + + E2N_RICsubscriptionDeleteFailure_t * ric_subscription_failure = &(unsuccess->value.choice.RICsubscriptionDeleteFailure); + ric_subscription_failure->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICsubscriptionDeleteFailure_IEs_t *ies_ricreq = &IE_Failure_array[ie_index]; + + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICsubscriptionDeleteFailure_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = helper.get_request_id(); + ricrequest_ie->ricRequestSequenceNumber = helper.get_req_seq(); + ASN_SEQUENCE_ADD(&ric_subscription_failure->protocolIEs, ies_ricreq); + + ie_index = 1; + E2N_RICsubscriptionDeleteFailure_IEs_t *ies_ranfunc = &IE_Failure_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICsubscriptionDeleteFailure_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = helper.get_function_id(); + ASN_SEQUENCE_ADD(&ric_subscription_failure->protocolIEs, ies_ranfunc); + + + return true; + +} + +bool subscription_delete_response:: get_fields(E2N_UnsuccessfulOutcome_t * unsuccess_msg, subscription_response_helper & dout) +{ + + if (unsuccess_msg == 0){ + error_string = "Invalid reference to unsuccess message in get fields subscription delete response"; + return false; + } + + E2N_RICrequestID_t *requestid; + E2N_RANfunctionID_t * ranfunctionid; + + for(int edx = 0; edx < unsuccess_msg->value.choice.RICsubscriptionDeleteFailure.protocolIEs.list.count; edx++) { + E2N_RICsubscriptionDeleteFailure_IEs_t *memb_ptr = unsuccess_msg->value.choice.RICsubscriptionDeleteFailure.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICrequestID): + requestid = &memb_ptr->value.choice.RICrequestID; + dout.set_request(requestid->ricRequestorID, requestid->ricRequestSequenceNumber); + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + ranfunctionid = &memb_ptr->value.choice.RANfunctionID; + dout.set_function_id(*ranfunctionid); + break; + + } + + } + + return true; + //asn_fprint(stdout, &asn_DEF_E2AP_PDU, e2pdu); +} + + + diff --git a/src/xapp-formats/e2ap/subscription_delete_response.hpp b/src/xapp-formats/e2ap/subscription_delete_response.hpp new file mode 100644 index 0000000..d9581e4 --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_delete_response.hpp @@ -0,0 +1,79 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + +#pragma once + +#ifndef S_DEL_RESPONSE_ +#define S_DEL_RESPONSE_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "response_helper.hpp" + +#define NUM_SUBSCRIPTION_DELETE_RESPONSE_IES 2 +#define NUM_SUBSCRIPTION_DELETE_FAILURE_IES 2 + +class subscription_delete_response { +public: + + subscription_delete_response(void); + ~subscription_delete_response(void); + + bool encode_e2ap_subscription_delete_response(unsigned char *, size_t *, subscription_response_helper &, bool); + bool set_fields(E2N_SuccessfulOutcome_t *, subscription_response_helper &); + bool get_fields(E2N_SuccessfulOutcome_t *, subscription_response_helper &); + + bool set_fields(E2N_UnsuccessfulOutcome_t *, subscription_response_helper &); + bool get_fields(E2N_UnsuccessfulOutcome_t *, subscription_response_helper &); + + std::string get_error_string(void) const { + return error_string; + } + +private: + + E2N_E2AP_PDU_t * e2ap_pdu_obj; + E2N_SuccessfulOutcome_t * successMsg; + E2N_UnsuccessfulOutcome_t * unsuccessMsg; + + + E2N_RICsubscriptionDeleteResponse_IEs_t *IE_array; + E2N_RICsubscriptionDeleteFailure_IEs_t *IE_Failure_array; + + + char errbuf[128]; + size_t errbuf_len = 128; + std::string error_string; + +}; + + + + +#endif diff --git a/src/xapp-formats/e2ap/subscription_helper.hpp b/src/xapp-formats/e2ap/subscription_helper.hpp new file mode 100644 index 0000000..ae0c5a5 --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_helper.hpp @@ -0,0 +1,196 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + + +#ifndef SUB_HELPER_ +#define SUB_HELPER_ + +/* + Simple structure to store action related information based on E2 v0.22 + Used for subscription request, response etc + + ricActionID RICactionID, + ricActionType RICactionType, + ricActionDefinition RICactionDefinition OPTIONAL, + ricSubsequentAction RICsubsequentAction OPTIONAL, + ricCause +*/ + +#include +#include +#include + +#include "generic_helpers.hpp" + + +// Note : if no action definition specified, octet length of action definition is NULL +// If no subsequent action specified, default is subsequent_action = 0, time to wait is 0 +struct Action { + +public: + + Action(int id, int type): _is_def(false), _is_subs_act(false), _id(id), _type(type), _next_action(0), _wait(0){}; + Action(int id, int type, const void *def, size_t def_size, int next, int wait): _is_def(false), _is_subs_act(false), _id(id), _type(type){ + + if (def_size > 0){ + _is_def = true; + _action_definition.set_ref(def); + _action_definition.set_size(def_size); + } + + if(next >= 0 && wait >= 0){ + _is_subs_act = true; + _next_action = next; + _wait = wait; + } + }; + + + int get_id() const{ + return _id; + } + + int get_type() const { + return _type; + } + + + const void * get_definition(void ) { + return _action_definition.get_ref(); + } + + int get_definition_size(void) const { + return _action_definition.get_size(); + }; + + + int get_subsequent_action() const { + return _next_action; + }; + + int get_wait() const { + return _wait; + } + + bool is_definition() const{ + + return _is_def; + } + + bool is_subsequent_action() const{ + return _is_subs_act; + } + +private: + + bool _is_def; + bool _is_subs_act; + int _id, _type, _next_action, _wait, _cause, _sub_cause; + bool _is_admit; + octet_helper _action_definition; + +}; + + +/* + Helper class that stores subscription data +*/ + + +struct subscription_helper { + +public: + + using action_t = std::vector; + + subscription_helper(){ + _action_ref = std::make_unique(); + curr_index = 0; + }; + + action_t * get_list() const {return _action_ref.get();}; + + void clear(void){ + _action_ref.get()->clear(); + } + + void set_request(int id, int seq_no){ + _req_id = id; + _req_seq_no = seq_no; + + }; + + void set_function_id(int id){ + _func_id = id; + }; + + void set_event_def(const void *ref, size_t size){ + _event_def.set_ref(ref); + _event_def.set_size(size); + }; + + + void add_action(int id, int type){ + Action a(id, type) ; + _action_ref.get()->push_back(a); + }; + + void add_action(int id, int type, std::string action_def, int next_action, int wait_time){ + Action a (id, type, action_def.c_str(), action_def.length(), next_action, wait_time); + _action_ref.get()->push_back(a); + }; + + + int get_request_id(void) const{ + return _req_id; + } + + int get_req_seq(void) const { + return _req_seq_no; + } + + int get_function_id(void) const{ + return _func_id; + } + + const void * get_event_def(void) { + return _event_def.get_ref(); + } + + int get_event_def_size(void) const { + return _event_def.get_size(); + } + + void print_sub_info(void){ + std::cout <<"Request ID = " << _req_id << std::endl; + std::cout <<"Request Sequence Number = " << _req_seq_no << std::endl; + std::cout <<"RAN Function ID = " << _func_id << std::endl; + for(auto const & e: *(_action_ref.get())){ + std::cout <<"Action ID = " << e.get_id() << " Action Type = " << e.get_type() << std::endl; + } + }; + +private: + + std::unique_ptr _action_ref; + int curr_index; + int _req_id, _req_seq_no, _func_id; + octet_helper _event_def; +}; + +#endif diff --git a/src/xapp-formats/e2ap/subscription_request.cc b/src/xapp-formats/e2ap/subscription_request.cc new file mode 100644 index 0000000..9b2f897 --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_request.cc @@ -0,0 +1,308 @@ + + +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + + +#include "subscription_request.hpp" + + +// Set up memory allocations for each IE for encoding +// We are responsible for memory management for each IE for encoding +// Hence destructor should clear out memory +// When decoding, we rely on asn1c macro (ASN_STRUCT_FREE to be called +// for releasing memory by external calling function) +subscription_request::subscription_request(void){ + + _name = "default"; + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t * )calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + initMsg = 0; + initMsg = (E2N_InitiatingMessage_t * )calloc(1, sizeof(E2N_InitiatingMessage_t)); + assert(initMsg != 0); + + IE_array = 0; + IE_array = (E2N_RICsubscriptionRequest_IEs_t *)calloc(NUM_SUBSCRIPTION_REQUEST_IES, sizeof(E2N_RICsubscriptionRequest_IEs_t)); + assert(IE_array != 0); + + action_array = 0; + action_array = (E2N_RICaction_ToBeSetup_ItemIEs_t *)calloc(INITIAL_REQUEST_LIST_SIZE, sizeof(E2N_RICaction_ToBeSetup_ItemIEs_t)); + assert(action_array != 0); + action_array_size = INITIAL_REQUEST_LIST_SIZE; + // also need to add subsequent action and time to wait .. + for (unsigned int i = 0; i < action_array_size; i++){ + action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction = (struct E2N_RICsubsequentAction *)calloc(1, sizeof(struct E2N_RICsubsequentAction)); + assert(action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction != 0); + } + + e2ap_pdu_obj->choice.initiatingMessage = initMsg; + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_initiatingMessage; + + + +}; + + + +// Clear assigned protocolIE list from RIC indication IE container +subscription_request::~subscription_request(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing subscription request memory for");; + + // Sequence of actions to be admitted causes special heart-ache. Free ric subscription element manually and reset the ie pointer + E2N_RICsubscription_t * ricsubscription_ie = &(IE_array[2].value.choice.RICsubscription); + + for(int i = 0; i < ricsubscription_ie->ricAction_ToBeSetup_List.list.size; i++){ + ricsubscription_ie->ricAction_ToBeSetup_List.list.array[i] = 0; + } + + if (ricsubscription_ie->ricAction_ToBeSetup_List.list.size > 0){ + free(ricsubscription_ie->ricAction_ToBeSetup_List.list.array); + ricsubscription_ie->ricAction_ToBeSetup_List.list.size = 0; + ricsubscription_ie->ricAction_ToBeSetup_List.list.count = 0; + ricsubscription_ie->ricAction_ToBeSetup_List.list.array = 0; + } + + // clear subsequent action array + for (unsigned int i = 0; i < action_array_size; i++){ + free(action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction ); + } + + free(action_array); + E2N_RICsubscriptionRequest_t * subscription_request = &(initMsg->value.choice.RICsubscriptionRequest); + + for(int i = 0; i < subscription_request->protocolIEs.list.size; i++){ + subscription_request->protocolIEs.list.array[i] = 0; + } + + if( subscription_request->protocolIEs.list.size > 0){ + free( subscription_request->protocolIEs.list.array); + subscription_request->protocolIEs.list.array = 0; + subscription_request->protocolIEs.list.size = 0; + subscription_request->protocolIEs.list.count = 0; + } + + free(IE_array); + free(initMsg); + e2ap_pdu_obj->choice.initiatingMessage = 0; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed subscription request memory "); +}; + + +bool subscription_request::encode_e2ap_subscription(unsigned char *buf, size_t *size, subscription_helper &dinput){ + + bool res; + + initMsg->procedureCode = E2N_ProcedureCode_id_ricSubscription; + initMsg->criticality = E2N_Criticality_ignore; + initMsg->value.present = E2N_InitiatingMessage__value_PR_RICsubscriptionRequest; + + res = set_fields(initMsg, dinput); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + error_string = "Constraints failed for encoding subscription request. Reason = " + error_string; + return false; + } + + //xer_fprint(stdout, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding Subscription Request. Reason = " + error_string; + return false; + } + else { + if(*size < retval.encoded){ + std::stringstream ss; + ss <<"Error encoding Subscription Request . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + retval.encoded = -1; + return false; + } + } + + *size = retval.encoded; + return true; + +} + + +bool subscription_request::set_fields( E2N_InitiatingMessage_t * init_msg, subscription_helper &helper){ + + + int ie_index; + int result = 0; + + if (init_msg == 0){ + error_string = "Error. Invalid reference when getting fields from subscription request"; + return false; + } + + E2N_RICsubscriptionRequest_t * ric_subscription = &(init_msg->value.choice.RICsubscriptionRequest); + ric_subscription->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICsubscriptionRequest_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICsubscriptionRequest_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = helper.get_request_id(); + ricrequest_ie->ricRequestSequenceNumber = helper.get_req_seq(); + result = ASN_SEQUENCE_ADD(&(ric_subscription->protocolIEs), &IE_array[ie_index]); + assert(result == 0); + + ie_index = 1; + E2N_RICsubscriptionRequest_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICsubscriptionRequest_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = helper.get_function_id(); + result = ASN_SEQUENCE_ADD(&(ric_subscription->protocolIEs), &IE_array[ie_index]); + assert(result == 0); + + + ie_index = 2; + E2N_RICsubscriptionRequest_IEs_t *ies_actid = &IE_array[ie_index]; + ies_actid->criticality = E2N_Criticality_reject; + ies_actid->id = E2N_ProtocolIE_ID_id_RICsubscription; + ies_actid->value.present = E2N_RICsubscriptionRequest_IEs__value_PR_RICsubscription; + E2N_RICsubscription_t *ricsubscription_ie = &ies_actid->value.choice.RICsubscription; + + ricsubscription_ie->ricEventTriggerDefinition.buf = (uint8_t *) helper.get_event_def(); + ricsubscription_ie->ricEventTriggerDefinition.size = helper.get_event_def_size(); + + std::vector * ref_action_array = helper.get_list(); + // do we need to resize ? + // we don't care about contents, so just do a free/calloc + if(action_array_size < ref_action_array->size()){ + std::cout <<"re-allocating action array from " << action_array_size << " to " << 2 * ref_action_array->size() << std::endl; + // free subsequent allocation + for (unsigned int i = 0; i < action_array_size; i++){ + free(action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction ); + } + + action_array_size = 2 * ref_action_array->size(); + free(action_array); + action_array = (E2N_RICaction_ToBeSetup_ItemIEs_t *)calloc(action_array_size, sizeof(E2N_RICaction_ToBeSetup_ItemIEs_t)); + assert(action_array != 0); + + // also need to add subsequent action and time to wait .. + for (unsigned int i = 0; i < action_array_size; i++){ + action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction = (struct E2N_RICsubsequentAction *)calloc(1, sizeof(struct E2N_RICsubsequentAction)); + assert(action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction != 0); + } + + } + + // reset the list count on ricAction_ToBeSetup_List; + ricsubscription_ie->ricAction_ToBeSetup_List.list.count = 0; + + for(unsigned int i = 0; i < ref_action_array->size(); i ++){ + action_array[i].criticality = E2N_Criticality_ignore; + action_array[i].id = E2N_ProtocolIE_ID_id_RICaction_ToBeSetup_Item ; + action_array[i].value.present = E2N_RICaction_ToBeSetup_ItemIEs__value_PR_RICaction_ToBeSetup_Item; + action_array[i].value.choice.RICaction_ToBeSetup_Item.ricActionID = (*ref_action_array)[i].get_id(); + action_array[i].value.choice.RICaction_ToBeSetup_Item.ricActionType = (*ref_action_array)[i].get_type(); + action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction->ricSubsequentActionType = (*ref_action_array)[i].get_subsequent_action(); + action_array[i].value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction->ricTimeToWait = (*ref_action_array)[i].get_wait(); + + result = ASN_SEQUENCE_ADD(&ricsubscription_ie->ricAction_ToBeSetup_List, &(action_array[i])); + if (result == -1){ + error_string = "Erorr : Unable to assign memory to add Action item to set up list"; + return false; + } + + } + + result = ASN_SEQUENCE_ADD(&(ric_subscription->protocolIEs), &IE_array[ie_index]); + assert(result == 0); + + + + return true; +}; + + + +bool subscription_request:: get_fields(E2N_InitiatingMessage_t * init_msg, subscription_helper & dout) +{ + + if (init_msg == 0){ + error_string = "Error. Invalid reference when getting fields from subscription request"; + return false; + } + + E2N_RICrequestID_t *requestid; + E2N_RANfunctionID_t * ranfunctionid; + E2N_RICsubscription_t * ricsubscription; + + for(int edx = 0; edx < init_msg->value.choice.RICsubscriptionRequest.protocolIEs.list.count; edx++) { + E2N_RICsubscriptionRequest_IEs_t *memb_ptr = init_msg->value.choice.RICsubscriptionRequest.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICrequestID): + requestid = &memb_ptr->value.choice.RICrequestID; + dout.set_request(requestid->ricRequestorID, requestid->ricRequestSequenceNumber); + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + ranfunctionid = &memb_ptr->value.choice.RANfunctionID; + dout.set_function_id(*ranfunctionid); + break; + + case (E2N_ProtocolIE_ID_id_RICsubscription): + ricsubscription = &memb_ptr->value.choice.RICsubscription; + dout.set_event_def(ricsubscription->ricEventTriggerDefinition.buf, ricsubscription->ricEventTriggerDefinition.size); + + for(int index = 0; index < ricsubscription->ricAction_ToBeSetup_List.list.count; index ++){ + E2N_RICaction_ToBeSetup_ItemIEs_t * item = (E2N_RICaction_ToBeSetup_ItemIEs_t *)ricsubscription->ricAction_ToBeSetup_List.list.array[index]; + if (item->value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction == NULL){ + dout.add_action(item->value.choice.RICaction_ToBeSetup_Item.ricActionID, item->value.choice.RICaction_ToBeSetup_Item.ricActionType); + } + else{ + std::string action_def = ""; // for now we are ignoring action definition + dout.add_action(item->value.choice.RICaction_ToBeSetup_Item.ricActionID, item->value.choice.RICaction_ToBeSetup_Item.ricActionType, action_def, item->value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction->ricSubsequentActionType, item->value.choice.RICaction_ToBeSetup_Item.ricSubsequentAction->ricTimeToWait); + } + }; + + break; + } + + } + + //asn_fprint(stdout, &asn_DEF_E2N_E2AP_PDU, e2pdu); + return true; +}; + + + diff --git a/src/xapp-formats/e2ap/subscription_request.hpp b/src/xapp-formats/e2ap/subscription_request.hpp new file mode 100644 index 0000000..28f419a --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_request.hpp @@ -0,0 +1,73 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + +#pragma once + +#ifndef S_REQUEST_ +#define S_REQUEST_ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "subscription_helper.hpp" + +#define NUM_SUBSCRIPTION_REQUEST_IES 3 +#define INITIAL_REQUEST_LIST_SIZE 4 + +class subscription_request{ +public: + + subscription_request(std::string name); + subscription_request(void); + ~subscription_request(void); + + bool encode_e2ap_subscription(unsigned char *, size_t *, subscription_helper &); + bool set_fields(E2N_InitiatingMessage_t *, subscription_helper &); + bool get_fields(E2N_InitiatingMessage_t *, subscription_helper &); + + std::string get_error(void) const{ + return error_string; + } + +private: + + E2N_InitiatingMessage_t *initMsg; + E2N_E2AP_PDU_t * e2ap_pdu_obj; + + E2N_RICsubscriptionRequest_IEs_t * IE_array; + E2N_RICaction_ToBeSetup_ItemIEs_t * action_array; + unsigned int action_array_size; + char errbuf[128]; + size_t errbuf_len = 128; + std::string _name; + std::string error_string; +}; + + + +#endif diff --git a/src/xapp-formats/e2ap/subscription_response.cc b/src/xapp-formats/e2ap/subscription_response.cc new file mode 100644 index 0000000..5308e81 --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_response.cc @@ -0,0 +1,583 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + + +#include "subscription_response.hpp" + +/* The xAPP need only worry about the get_fields from a response, since it does +not generate a response. Generating response however is included to support testing. +*/ + + +// Primarly for generation +subscription_response::subscription_response(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t *)calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + successMsg = 0; + successMsg = (E2N_SuccessfulOutcome_t *)calloc(1, sizeof(E2N_SuccessfulOutcome_t)); + assert(successMsg != 0); + + unsuccessMsg = 0; + unsuccessMsg = (E2N_UnsuccessfulOutcome_t *)calloc(1, sizeof(E2N_UnsuccessfulOutcome_t)); + assert(unsuccessMsg != 0); + + IE_array = 0; + IE_array = (E2N_RICsubscriptionResponse_IEs_t *)calloc(NUM_SUBSCRIPTION_RESPONSE_IES, sizeof(E2N_RICsubscriptionResponse_IEs_t)); + assert(IE_array != 0); + + IE_Failure_array = 0; + IE_Failure_array = (E2N_RICsubscriptionFailure_IEs_t *)calloc(NUM_SUBSCRIPTION_FAILURE_IES, sizeof(E2N_RICsubscriptionFailure_IEs_t)); + assert(IE_Failure_array != 0); + + ie_admitted_list = 0; + ie_admitted_list = (E2N_RICaction_Admitted_ItemIEs_t *)calloc(INITIAL_RESPONSE_LIST_SIZE, sizeof(E2N_RICaction_Admitted_ItemIEs_t)); + assert(ie_admitted_list != 0); + ie_admitted_list_size = INITIAL_RESPONSE_LIST_SIZE; + + ie_not_admitted_list = 0; + ie_not_admitted_list = (E2N_RICaction_NotAdmitted_ItemIEs_t *)calloc(INITIAL_RESPONSE_LIST_SIZE, sizeof(E2N_RICaction_NotAdmitted_ItemIEs_t)); + assert(ie_not_admitted_list != 0); + ie_not_admitted_list_size = INITIAL_RESPONSE_LIST_SIZE; + + + + + +}; + + + +// Clear assigned protocolIE list from RIC indication IE container +subscription_response::~subscription_response(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing subscription response memory"); + E2N_RICaction_Admitted_List_t * response_admitted_list = (E2N_RICaction_Admitted_List_t *) &(IE_array[2].value.choice.RICaction_Admitted_List); + + for(int i = 0; i < response_admitted_list->list.size; i++){ + response_admitted_list->list.array[i] = 0; + } + + + if (response_admitted_list->list.size > 0){ + free(response_admitted_list->list.array); + response_admitted_list->list.array = 0; + response_admitted_list->list.size = 0; + response_admitted_list->list.count = 0; + } + + + E2N_RICaction_NotAdmitted_List_t * response_not_admitted_list = &(IE_array[3].value.choice.RICaction_NotAdmitted_List); + for(int i = 0; i < response_not_admitted_list->list.size; i++){ + response_not_admitted_list->list.array[i] = 0; + } + + if (response_not_admitted_list->list.size > 0){ + free(response_not_admitted_list->list.array); + response_not_admitted_list->list.array = 0; + response_not_admitted_list->list.size = 0; + response_not_admitted_list->list.count = 0; + } + + E2N_RICsubscriptionResponse_t * ric_subscription_response = &(successMsg->value.choice.RICsubscriptionResponse); + for(int i = 0; i < ric_subscription_response->protocolIEs.list.size ; i++){ + ric_subscription_response->protocolIEs.list.array[i] = 0; + } + + if (ric_subscription_response->protocolIEs.list.size > 0){ + free(ric_subscription_response->protocolIEs.list.array); + ric_subscription_response->protocolIEs.list.array = 0; + ric_subscription_response->protocolIEs.list.size = 0; + ric_subscription_response->protocolIEs.list.count = 0; + } + + + E2N_RICaction_NotAdmitted_List_t * failure_not_admitted_list = &(IE_Failure_array[2].value.choice.RICaction_NotAdmitted_List); + for(int i = 0; i < failure_not_admitted_list->list.size; i++){ + failure_not_admitted_list->list.array[i] = 0; + } + + if ( failure_not_admitted_list->list.size > 0){ + free( failure_not_admitted_list->list.array); + failure_not_admitted_list->list.array = 0; + failure_not_admitted_list->list.size = 0; + failure_not_admitted_list->list.count = 0; + } + + + E2N_RICsubscriptionFailure_t * ric_subscription_failure = &(unsuccessMsg->value.choice.RICsubscriptionFailure); + for(int i = 0; i < ric_subscription_failure->protocolIEs.list.size; i++){ + ric_subscription_failure->protocolIEs.list.array[i] = 0; + } + + if ( ric_subscription_failure->protocolIEs.list.size > 0){ + free(ric_subscription_failure->protocolIEs.list.array); + ric_subscription_failure->protocolIEs.list.array = 0; + ric_subscription_failure->protocolIEs.list.size = 0; + ric_subscription_failure->protocolIEs.list.count = 0; + } + + + free(ie_admitted_list); + free(ie_not_admitted_list); + free(IE_Failure_array); + free(IE_array); + + + ASN_STRUCT_FREE(asn_DEF_E2N_SuccessfulOutcome, successMsg); + ASN_STRUCT_FREE(asn_DEF_E2N_UnsuccessfulOutcome, unsuccessMsg); + + + e2ap_pdu_obj->choice.initiatingMessage = NULL; + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_NOTHING; + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + + mdclog_write(MDCLOG_DEBUG, "Freed subscription response memory "); + + +}; + + +bool subscription_response::encode_e2ap_subscription_response(unsigned char *buf, size_t *size, subscription_response_helper &dinput, bool is_success){ + + + if(is_success){ + set_fields_success(dinput); + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_successfulOutcome; + e2ap_pdu_obj->choice.successfulOutcome = successMsg; + + successMsg->procedureCode = E2N_ProcedureCode_id_ricSubscription; + successMsg->criticality = E2N_Criticality_reject; + successMsg->value.present = E2N_SuccessfulOutcome__value_PR_RICsubscriptionResponse; + + } + else{ + set_fields_unsuccess(dinput); + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_unsuccessfulOutcome; + e2ap_pdu_obj->choice.unsuccessfulOutcome = unsuccessMsg; + + unsuccessMsg->procedureCode = E2N_ProcedureCode_id_ricSubscription; + unsuccessMsg->criticality = E2N_Criticality_reject; + unsuccessMsg->value.present = E2N_UnsuccessfulOutcome__value_PR_RICsubscriptionFailure; + + } + + //xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj); + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + error_string = "Constraints failed for encoding subscription response. Reason = " + error_string; + return false; + } + + asn_enc_rval_t res = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(res.encoded == -1){ + std::cout <<"Error encoding PDU. Reason =" << strerror(errno) << std::endl; + return false; + } + else { + if(*size < res.encoded){ + fprintf(stderr, "Buffer assigned too small to encode: %s",(char *)(asn_DEF_E2N_E2AP_PDU.name)); + res.encoded = -1; + return false; + } + } + + *size = res.encoded; + return true; + +} + +void subscription_response::set_fields_success(subscription_response_helper &helper){ + + int ie_index; + + E2N_RICsubscriptionResponse_t * subscription_response = &(successMsg->value.choice.RICsubscriptionResponse); + //reset list count .. + subscription_response->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICsubscriptionResponse_IEs_t *ies_ricreq = &IE_array[ie_index]; + + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICsubscriptionResponse_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = helper.get_request_id(); + ricrequest_ie->ricRequestSequenceNumber = helper.get_req_seq(); + ASN_SEQUENCE_ADD(&subscription_response->protocolIEs, &(IE_array[ie_index])); + + + ie_index = 1; + E2N_RICsubscriptionResponse_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICsubscriptionResponse_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = helper.get_function_id(); + ASN_SEQUENCE_ADD(&subscription_response->protocolIEs, &(IE_array[ie_index])); + + + ie_index = 2; + E2N_RICsubscriptionResponse_IEs_t *ies_admitted_actid = &IE_array[ie_index]; + ies_admitted_actid->criticality = E2N_Criticality_reject; + ies_admitted_actid->id = E2N_ProtocolIE_ID_id_RICactions_Admitted; + E2N_RICaction_Admitted_List_t *ric_admitted_actions_ie = &ies_admitted_actid->value.choice.RICaction_Admitted_List; + ric_admitted_actions_ie->list.count = 0; + std::vector * ref_admitted_action_array = helper.get_admitted_list(); + + if(ref_admitted_action_array->size() == 0){ + ies_admitted_actid->value.present = E2N_RICsubscriptionResponse_IEs__value_PR_NOTHING; + } + else{ + ies_admitted_actid->value.present = E2N_RICsubscriptionResponse_IEs__value_PR_RICaction_Admitted_List; + + // resize memory ? + if (ref_admitted_action_array->size() >= ie_admitted_list_size){ + ie_admitted_list_size = 2 * ref_admitted_action_array->size(); + free(ie_admitted_list); + ie_admitted_list = (E2N_RICaction_Admitted_ItemIEs_t *)calloc(ie_admitted_list_size, sizeof(E2N_RICaction_Admitted_ItemIEs_t)); + assert(ie_admitted_list != 0); + }; + + + for(unsigned int i = 0; i < ref_admitted_action_array->size(); i ++){ + ie_admitted_list[i].criticality = E2N_Criticality_ignore; + ie_admitted_list[i].id = E2N_ProtocolIE_ID_id_RICaction_Admitted_Item ; + ie_admitted_list[i].value.present = E2N_RICaction_Admitted_ItemIEs__value_PR_RICaction_Admitted_Item; + ie_admitted_list[i].value.choice.RICaction_Admitted_Item.ricActionID = (*ref_admitted_action_array)[i].get_id(); + ASN_SEQUENCE_ADD(ric_admitted_actions_ie, &(ie_admitted_list[i])); + } + } + ASN_SEQUENCE_ADD(&subscription_response->protocolIEs, &(IE_array[ie_index])); + + // optional IE : add only if non-zero list + ie_index = 3; + std::vector * ref_notadmitted_action_array = helper.get_not_admitted_list(); + if (ref_notadmitted_action_array->size() > 0){ + + E2N_RICsubscriptionResponse_IEs_t *ies_notadmitted_actid = &IE_array[ie_index]; + ies_notadmitted_actid->criticality = E2N_Criticality_reject; + ies_notadmitted_actid->id = E2N_ProtocolIE_ID_id_RICactions_NotAdmitted; + + E2N_RICaction_NotAdmitted_List_t *ric_not_admitted_actions_ie = &ies_notadmitted_actid->value.choice.RICaction_NotAdmitted_List; + ric_not_admitted_actions_ie->list.count = 0; + + + ies_notadmitted_actid->value.present = E2N_RICsubscriptionResponse_IEs__value_PR_RICaction_NotAdmitted_List; + + // resize memory ? + if (ref_notadmitted_action_array->size() >= ie_not_admitted_list_size){ + ie_not_admitted_list_size = 2 * ref_notadmitted_action_array->size(); + free(ie_not_admitted_list); + ie_not_admitted_list = (E2N_RICaction_NotAdmitted_ItemIEs_t *)calloc(ie_not_admitted_list_size, sizeof(E2N_RICaction_NotAdmitted_ItemIEs_t)); + assert(ie_not_admitted_list != 0); + + }; + + + for(unsigned int i = 0; i < ref_notadmitted_action_array->size(); i ++){ + ie_not_admitted_list[i].criticality = E2N_Criticality_ignore; + ie_not_admitted_list[i].id = E2N_ProtocolIE_ID_id_RICaction_NotAdmitted_Item ; + ie_not_admitted_list[i].value.present = E2N_RICaction_NotAdmitted_ItemIEs__value_PR_RICaction_NotAdmitted_Item;; + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricActionID = (*ref_notadmitted_action_array)[i].get_id(); + + int cause = (*ref_notadmitted_action_array)[i].get_cause(); + switch(cause){ + case E2N_RICcause_PR_radioNetwork: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.radioNetwork = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_transport: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.transport = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_protocol: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.protocol= (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_misc: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.misc = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_ric: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.ric = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + default: + mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Unknown RIC cause %d\n", __FILE__, __LINE__, cause); + return; + } + + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.present = (E2N_RICcause_PR)cause; + ASN_SEQUENCE_ADD(ric_not_admitted_actions_ie, &(ie_not_admitted_list[i])); + } + + ASN_SEQUENCE_ADD(&subscription_response->protocolIEs, &(IE_array[ie_index])); + } + +} + +void subscription_response:: get_fields(E2N_SuccessfulOutcome_t * success_msg, subscription_response_helper & dout) +{ + + assert(success_msg != NULL); + + E2N_RICrequestID_t *requestid; + E2N_RANfunctionID_t * ranfunctionid; + E2N_RICaction_Admitted_List_t * ric_admitted_action_list; + E2N_RICaction_NotAdmitted_List_t * ric_not_admitted_action_list; + + for(int edx = 0; edx < success_msg->value.choice.RICsubscriptionResponse.protocolIEs.list.count; edx++) { + E2N_RICsubscriptionResponse_IEs_t *memb_ptr = success_msg->value.choice.RICsubscriptionResponse.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICrequestID): + requestid = &memb_ptr->value.choice.RICrequestID; + dout.set_request(requestid->ricRequestorID, requestid->ricRequestSequenceNumber); + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + ranfunctionid = &memb_ptr->value.choice.RANfunctionID; + dout.set_function_id(*ranfunctionid); + break; + + case (E2N_ProtocolIE_ID_id_RICactions_Admitted): + ric_admitted_action_list = &memb_ptr->value.choice.RICaction_Admitted_List; + + // admitted actions + for(int index = 0; index < ric_admitted_action_list->list.count; index ++){ + E2N_RICaction_Admitted_ItemIEs_t * item = (E2N_RICaction_Admitted_ItemIEs_t *)ric_admitted_action_list->list.array[index]; + long int id = item->value.choice.RICaction_Admitted_Item.ricActionID; + dout.get_admitted_list()->push_back(ActionResponse(id)); + }; + + break; + + case (E2N_ProtocolIE_ID_id_RICactions_NotAdmitted): + ric_not_admitted_action_list = &memb_ptr->value.choice.RICaction_NotAdmitted_List; + + for(int index = 0; index < ric_not_admitted_action_list->list.count; index ++){ + E2N_RICaction_NotAdmitted_ItemIEs_t * item = (E2N_RICaction_NotAdmitted_ItemIEs_t *)ric_not_admitted_action_list->list.array[index]; + long int id = item->value.choice.RICaction_NotAdmitted_Item.ricActionID; + int cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.present; + int sub_cause; + switch(cause){ + + case E2N_RICcause_PR_radioNetwork : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.radioNetwork; + break; + + case E2N_RICcause_PR_transport : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.transport; + break; + + case E2N_RICcause_PR_protocol : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.protocol; + break; + + case E2N_RICcause_PR_misc : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.misc; + break; + + case E2N_RICcause_PR_ric : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.ric; + break; + + default: + std::cout <<"Error ! Illegal cause enum" << cause << std::endl; + return; + } + dout.get_not_admitted_list()->push_back(ActionResponse(id, cause, sub_cause)); + } + break; + } + + } + + //asn_fprint(stdout, &asn_DEF_E2AP_PDU, e2pdu); +} + + +void subscription_response::set_fields_unsuccess( subscription_response_helper &helper){ + + int ie_index; + E2N_RICsubscriptionFailure_t * ric_subscription_failure = &(unsuccessMsg->value.choice.RICsubscriptionFailure); + // reset list count + ric_subscription_failure->protocolIEs.list.count = 0; + + ie_index = 0; + E2N_RICsubscriptionFailure_IEs_t *ies_ricreq = &IE_Failure_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICsubscriptionFailure_IEs__value_PR_RICrequestID; + E2N_RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = helper.get_request_id(); + ricrequest_ie->ricRequestSequenceNumber = helper.get_req_seq(); + ASN_SEQUENCE_ADD(&ric_subscription_failure->protocolIEs, &(IE_Failure_array[ie_index])); + + ie_index = 1; + E2N_RICsubscriptionFailure_IEs_t *ies_ranfunc = &IE_Failure_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICsubscriptionFailure_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = helper.get_function_id(); + ASN_SEQUENCE_ADD(&ric_subscription_failure->protocolIEs, &(IE_Failure_array[ie_index])); + + ie_index = 2; + E2N_RICsubscriptionFailure_IEs_t *ies_notadmitted_actid = &IE_Failure_array[ie_index]; + ies_notadmitted_actid->criticality = E2N_Criticality_reject; + ies_notadmitted_actid->id = E2N_ProtocolIE_ID_id_RICactions_NotAdmitted; + E2N_RICaction_NotAdmitted_List_t *ric_not_admitted_actions_ie = &ies_notadmitted_actid->value.choice.RICaction_NotAdmitted_List; + ric_not_admitted_actions_ie->list.count = 0; + std::vector * ref_notadmitted_action_array = helper.get_not_admitted_list(); + if(ref_notadmitted_action_array->size() == 0){ + ies_notadmitted_actid->value.present = E2N_RICsubscriptionFailure_IEs__value_PR_NOTHING; + } + else{ + ies_notadmitted_actid->value.present = E2N_RICsubscriptionFailure_IEs__value_PR_RICaction_NotAdmitted_List; + + // resize memory ? + if (ref_notadmitted_action_array->size() >= ie_not_admitted_list_size){ + ie_not_admitted_list_size = 2 * ref_notadmitted_action_array->size(); + free(ie_not_admitted_list); + ie_not_admitted_list = (E2N_RICaction_NotAdmitted_ItemIEs_t *)calloc(ie_not_admitted_list_size, sizeof(E2N_RICaction_NotAdmitted_ItemIEs_t)); + assert(ie_not_admitted_list != 0); + }; + + + // reset the list count on ricAction_ToBeSetup_List; + for(unsigned int i = 0; i < ref_notadmitted_action_array->size(); i ++){ + ie_not_admitted_list[i].criticality = E2N_Criticality_ignore; + ie_not_admitted_list[i].id = E2N_ProtocolIE_ID_id_RICaction_NotAdmitted_Item ; + ie_not_admitted_list[i].value.present = E2N_RICaction_NotAdmitted_ItemIEs__value_PR_RICaction_NotAdmitted_Item;; + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricActionID = (*ref_notadmitted_action_array)[i].get_id(); + + int cause = (*ref_notadmitted_action_array)[i].get_cause(); + switch(cause){ + case E2N_RICcause_PR_radioNetwork: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.radioNetwork = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_transport: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.transport = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_protocol: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.protocol= (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_misc: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.misc = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + case E2N_RICcause_PR_ric: + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.choice.ric = (*ref_notadmitted_action_array)[i].get_sub_cause(); + break; + default: + mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Unknown RIC cause %d\n", __FILE__, __LINE__, cause); + return ; + } + + ie_not_admitted_list[i].value.choice.RICaction_NotAdmitted_Item.ricCause.present = (E2N_RICcause_PR)cause; + + ASN_SEQUENCE_ADD(ric_not_admitted_actions_ie, &(ie_not_admitted_list[i])); + } + + } + ASN_SEQUENCE_ADD(&ric_subscription_failure->protocolIEs, &(IE_Failure_array[ie_index])); + + + // // criticality diagnostics is not generated/parsed currently since optional + // i = 3; + // E2N_RICsubscriptionFailure_IEs_t *ies_criticality_diagnostics= &IE_Failure_array[i]; + // ies_criticality_diagnostics->criticality = E2N_Criticality_ignore; + // ies_criticality_diagnostics->id = E2N_ProtocolIE_ID_id_CriticalityDiagnostics ; + // ies_criticality_diagnostics->value.present = E2N_RICsubscriptionFailure_IEs__value_PR_NOTHING; + + +} + +void subscription_response:: get_fields(E2N_UnsuccessfulOutcome_t * unsuccess_msg, subscription_response_helper & dout) +{ + + assert(unsuccess_msg != NULL); + + E2N_RICrequestID_t *requestid; + E2N_RANfunctionID_t * ranfunctionid; + E2N_RICaction_NotAdmitted_List_t * ric_not_admitted_action_list; + + for(int edx = 0; edx < unsuccess_msg->value.choice.RICsubscriptionFailure.protocolIEs.list.count; edx++) { + E2N_RICsubscriptionFailure_IEs_t *memb_ptr = unsuccess_msg->value.choice.RICsubscriptionFailure.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICrequestID): + requestid = &memb_ptr->value.choice.RICrequestID; + dout.set_request(requestid->ricRequestorID, requestid->ricRequestSequenceNumber); + break; + + case (E2N_ProtocolIE_ID_id_RANfunctionID): + ranfunctionid = &memb_ptr->value.choice.RANfunctionID; + dout.set_function_id(*ranfunctionid); + break; + + + case (E2N_ProtocolIE_ID_id_RICactions_NotAdmitted): + ric_not_admitted_action_list = &memb_ptr->value.choice.RICaction_NotAdmitted_List; + + for(int index = 0; index < ric_not_admitted_action_list->list.count; index ++){ + E2N_RICaction_NotAdmitted_ItemIEs_t * item = (E2N_RICaction_NotAdmitted_ItemIEs_t *)ric_not_admitted_action_list->list.array[index]; + long int id = item->value.choice.RICaction_NotAdmitted_Item.ricActionID; + int cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.present; + int sub_cause; + switch(cause){ + + case E2N_RICcause_PR_radioNetwork : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.radioNetwork; + break; + + case E2N_RICcause_PR_transport : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.transport; + break; + + case E2N_RICcause_PR_protocol : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.protocol; + break; + + case E2N_RICcause_PR_misc : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.misc; + break; + + case E2N_RICcause_PR_ric : + sub_cause = item->value.choice.RICaction_NotAdmitted_Item.ricCause.choice.ric; + break; + + default: + mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Unknown RIC cause %d\n", __FILE__, __LINE__, cause); + return; + } + dout.get_not_admitted_list()->push_back(ActionResponse(id, cause, sub_cause)); + } + break; + } + + } + + //asn_fprint(stdout, &asn_DEF_E2AP_PDU, e2pdu); +} + + + diff --git a/src/xapp-formats/e2ap/subscription_response.hpp b/src/xapp-formats/e2ap/subscription_response.hpp new file mode 100644 index 0000000..28fad4e --- /dev/null +++ b/src/xapp-formats/e2ap/subscription_response.hpp @@ -0,0 +1,81 @@ +/* +================================================================================== + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + +#pragma once + +#ifndef S_RESPONSE_ +#define S_RESPONSE_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "response_helper.hpp" + +#define NUM_SUBSCRIPTION_RESPONSE_IES 4 +#define NUM_SUBSCRIPTION_FAILURE_IES 3 +#define INITIAL_RESPONSE_LIST_SIZE 4 + +class subscription_response{ +public: + + subscription_response(void); + ~subscription_response(void); + + bool encode_e2ap_subscription_response(unsigned char *, size_t *, subscription_response_helper &, bool); + void get_fields(E2N_SuccessfulOutcome_t *, subscription_response_helper &); + void get_fields(E2N_UnsuccessfulOutcome_t *, subscription_response_helper &); + + std::string get_error(void) const{ + return error_string; + } + +private: + + void set_fields_success( subscription_response_helper &); + void set_fields_unsuccess( subscription_response_helper &); + + E2N_E2AP_PDU_t * e2ap_pdu_obj; + E2N_SuccessfulOutcome_t * successMsg; + E2N_UnsuccessfulOutcome_t * unsuccessMsg; + + + E2N_RICsubscriptionResponse_IEs_t *IE_array; + E2N_RICsubscriptionFailure_IEs_t *IE_Failure_array; + + + E2N_RICaction_Admitted_ItemIEs_t * ie_admitted_list; + E2N_RICaction_NotAdmitted_ItemIEs_t * ie_not_admitted_list; + unsigned int ie_admitted_list_size, ie_not_admitted_list_size; + + char errbuf[128]; + size_t errbuf_len = 128; + std::string error_string; +}; + + + + +#endif diff --git a/src/xapp-formats/e2sm/e2sm.cc b/src/xapp-formats/e2sm/e2sm.cc new file mode 100644 index 0000000..c476c83 --- /dev/null +++ b/src/xapp-formats/e2sm/e2sm.cc @@ -0,0 +1,660 @@ +/* + ================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, softwares + 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. + ================================================================================== +*/ + +/* Classes to handle E2 service model based on e2sm-gNB-X2-release-1-v040.asn */ + +#include "e2sm.hpp" + + + + //initialize + e2sm_event_trigger::e2sm_event_trigger(void){ + + memset(&gNodeB_ID, 0, sizeof(E2N_GlobalGNB_ID_t)); + + event_trigger = 0; + event_trigger = ( E2N_E2SM_gNB_X2_eventTriggerDefinition_t *)calloc(1, sizeof( E2N_E2SM_gNB_X2_eventTriggerDefinition_t)); + assert(event_trigger != 0); + + // allocate space for gNodeB id (used for encoding) + gNodeB_ID.gNB_ID.choice.gNB_ID.buf = 0; + gNodeB_ID.gNB_ID.choice.gNB_ID.buf = (uint8_t *)calloc(4, sizeof(uint8_t)); + assert(gNodeB_ID.gNB_ID.choice.gNB_ID.buf != 0); + + // allocate space for plmn identity (used for encoding) + gNodeB_ID.pLMN_Identity.buf = 0; + gNodeB_ID.pLMN_Identity.buf = (uint8_t *) calloc(4, sizeof(uint8_t)); + assert(gNodeB_ID.pLMN_Identity.buf != 0); + + ie_list = 0; + ie_list = ( struct E2N_InterfaceProtocolIE_Item *) calloc(INITIAL_LIST_SIZE, sizeof( struct E2N_InterfaceProtocolIE_Item)); + assert(ie_list != 0); + ie_list_size = INITIAL_LIST_SIZE; + + condition_list = 0; + condition_list = (E2N_E2SM_gNB_X2_eventTriggerDefinition::E2N_E2SM_gNB_X2_eventTriggerDefinition__interfaceProtocolIE_List *) calloc(1, sizeof(E2N_E2SM_gNB_X2_eventTriggerDefinition::E2N_E2SM_gNB_X2_eventTriggerDefinition__interfaceProtocolIE_List )); + assert(condition_list != 0); + + + + }; + +e2sm_event_trigger::~e2sm_event_trigger(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing event trigger object memory"); + for(int i = 0; i < condition_list->list.size; i++){ + condition_list->list.array[i] = 0; + } + + if (condition_list->list.size > 0){ + free(condition_list->list.array); + condition_list->list.array = 0; + condition_list->list.size = 0; + condition_list->list.count = 0; + } + + free(condition_list); + condition_list = 0; + + free(gNodeB_ID.gNB_ID.choice.gNB_ID.buf); + gNodeB_ID.gNB_ID.choice.gNB_ID.buf = 0; + + free(gNodeB_ID.pLMN_Identity.buf); + gNodeB_ID.pLMN_Identity.buf = 0; + + free(ie_list); + ie_list = 0; + + event_trigger->interface_ID.choice.global_gNB_ID = 0; + event_trigger->interfaceProtocolIE_List = 0; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2SM_gNB_X2_eventTriggerDefinition, event_trigger); + mdclog_write(MDCLOG_DEBUG, "Freed event trigger object memory"); + + +}; + +bool e2sm_event_trigger::encode_event_trigger(unsigned char *buf, size_t *size, e2sm_event_trigger_helper &helper){ + + bool res; + res = set_fields(event_trigger, helper); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2SM_gNB_X2_eventTriggerDefinition, event_trigger, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + return false; + } + + //xer_fprint(stdout, &asn_DEF_E2N_E2SM_gNB_X2_eventTriggerDefinition, event_trigger); + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2SM_gNB_X2_eventTriggerDefinition, event_trigger, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + return false; + } + else if (retval.encoded > *size){ + std::stringstream ss; + ss <<"Error encoding event trigger definition. Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + else{ + *size = retval.encoded; + } + + return true; +} + + +bool e2sm_event_trigger::set_fields(E2N_E2SM_gNB_X2_eventTriggerDefinition_t * ref_event_trigger, e2sm_event_trigger_helper & helper){ + if(ref_event_trigger == 0){ + error_string = "Invalid reference for Event Trigger Definition set fields"; + return false; + } + + // set the message type + ref_event_trigger->interfaceMessageType.procedureCode = helper.procedure_code; + ref_event_trigger->interfaceMessageType.typeOfMessage = helper.message_type; + + ref_event_trigger->interfaceDirection = helper.interface_direction; + ref_event_trigger->interface_ID.present = E2N_Interface_ID_PR_global_gNB_ID; + + ref_event_trigger->interface_ID.choice.global_gNB_ID = &gNodeB_ID; + + // to do : need to put correct code here for upding plmn id and gNodeB + // for now just place holders : + //================================================================ + memcpy(gNodeB_ID.pLMN_Identity.buf, helper.plmn_id.c_str(), 3); + gNodeB_ID.pLMN_Identity.size = 3; + + memcpy(gNodeB_ID.gNB_ID.choice.gNB_ID.buf, helper.egNB_id.c_str(), 3); + gNodeB_ID.gNB_ID.choice.gNB_ID.size = 3; + + // we only do global gNodeB id for now, not eNodeB + gNodeB_ID.gNB_ID.present = E2N_GNB_ID_PR_gNB_ID; + //================================================================ + + + // Add in any requested IE items + std::vector * ref_ie_array = helper.get_list(); + + if (ref_ie_array->size() == 0){ + ref_event_trigger->interfaceProtocolIE_List = 0; + + } + else{ + ref_event_trigger->interfaceProtocolIE_List = condition_list; + + //resize memory ? + if(ref_ie_array->size() > ie_list_size){ + ie_list_size = 2 * ref_ie_array->size(); + free(ie_list); + ie_list = (struct E2N_InterfaceProtocolIE_Item *)calloc(ie_list_size, sizeof(struct E2N_InterfaceProtocolIE_Item)); + assert(ie_list != 0); + } + + // reset the count so that adds start from the beginning + ref_event_trigger->interfaceProtocolIE_List->list.count = 0; + + for(unsigned int i = 0; i < ref_ie_array->size(); i++){ + + ie_list[i].interfaceProtocolIE_ID = (*ref_ie_array)[i].interface_id; + ie_list[i].interfaceProtocolIE_Test = (*ref_ie_array)[i].test; + + //switch(ie_list[i].interfaceProtocolIE_Value.present){ + switch((*ref_ie_array)[i].val_type){ + + case (E2N_InterfaceProtocolIE_Value_PR_valueInt): + ie_list[i].interfaceProtocolIE_Value.present = E2N_InterfaceProtocolIE_Value_PR_valueInt; + ie_list[i].interfaceProtocolIE_Value.choice.valueInt = (*ref_ie_array)[i].value_n; + break; + + case (E2N_InterfaceProtocolIE_Value_PR_valueEnum): + ie_list[i].interfaceProtocolIE_Value.present = E2N_InterfaceProtocolIE_Value_PR_valueEnum; + ie_list[i].interfaceProtocolIE_Value.choice.valueEnum = (*ref_ie_array)[i].value_n; + break; + + case (E2N_InterfaceProtocolIE_Value_PR_valueBool): + ie_list[i].interfaceProtocolIE_Value.present = E2N_InterfaceProtocolIE_Value_PR_valueBool; + ie_list[i].interfaceProtocolIE_Value.choice.valueBool = (*ref_ie_array)[i].value_n; + break; + + case (E2N_InterfaceProtocolIE_Value_PR_valueBitS): + ie_list[i].interfaceProtocolIE_Value.present = E2N_InterfaceProtocolIE_Value_PR_valueBitS; + ie_list[i].interfaceProtocolIE_Value.choice.valueBitS.buf = (uint8_t *)(*ref_ie_array)[i].value_s.c_str(); + ie_list[i].interfaceProtocolIE_Value.choice.valueBitS.size = (*ref_ie_array)[i].value_s.length(); + break; + + case (E2N_InterfaceProtocolIE_Value_PR_valueOctS): + ie_list[i].interfaceProtocolIE_Value.present = E2N_InterfaceProtocolIE_Value_PR_valueOctS; + ie_list[i].interfaceProtocolIE_Value.choice.valueOctS.buf = (uint8_t *)(*ref_ie_array)[i].value_s.c_str(); + ie_list[i].interfaceProtocolIE_Value.choice.valueOctS.size = (*ref_ie_array)[i].value_s.length(); + break; + + default: + { + std::stringstream ss; + ss <<"Error ! " << __FILE__ << "," << __LINE__ << " illegal enum " << (*ref_ie_array)[i].val_type << " for interface Protocol IE value" << std::endl; + std::string error_string = ss.str(); + return false; + } + } + + ASN_SEQUENCE_ADD(ref_event_trigger->interfaceProtocolIE_List, &ie_list[i]); + } + } + + return true; +}; + + +bool e2sm_event_trigger::get_fields(E2N_E2SM_gNB_X2_eventTriggerDefinition_t * ref_event_trigger, e2sm_event_trigger_helper & helper){ + + if (ref_event_trigger == 0){ + error_string = "Invalid reference for Event Trigger definition get fields"; + return false; + } + + helper.procedure_code = ref_event_trigger->interfaceMessageType.procedureCode; + helper.message_type = ref_event_trigger->interfaceMessageType.typeOfMessage; + helper.interface_direction = ref_event_trigger->interfaceDirection; + + 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); + 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); + for(int i = 0; i < ref_event_trigger->interfaceProtocolIE_List->list.count; i++){ + struct E2N_InterfaceProtocolIE_Item * ie_item = ref_event_trigger->interfaceProtocolIE_List->list.array[i]; + switch(ie_item->interfaceProtocolIE_Value.present){ + case (E2N_InterfaceProtocolIE_Value_PR_valueInt): + helper.add_protocol_ie_item(ie_item->interfaceProtocolIE_ID, ie_item->interfaceProtocolIE_Test, ie_item->interfaceProtocolIE_Value.present, ie_item->interfaceProtocolIE_Value.choice.valueInt); + break; + case (E2N_InterfaceProtocolIE_Value_PR_valueEnum): + helper.add_protocol_ie_item(ie_item->interfaceProtocolIE_ID, ie_item->interfaceProtocolIE_Test, ie_item->interfaceProtocolIE_Value.present, ie_item->interfaceProtocolIE_Value.choice.valueEnum); + break; + case (E2N_InterfaceProtocolIE_Value_PR_valueBool): + helper.add_protocol_ie_item(ie_item->interfaceProtocolIE_ID, ie_item->interfaceProtocolIE_Test, ie_item->interfaceProtocolIE_Value.present, ie_item->interfaceProtocolIE_Value.choice.valueBool); + break; + case (E2N_InterfaceProtocolIE_Value_PR_valueBitS): + helper.add_protocol_ie_item(ie_item->interfaceProtocolIE_ID, ie_item->interfaceProtocolIE_Test, ie_item->interfaceProtocolIE_Value.present, std::string((const char *)ie_item->interfaceProtocolIE_Value.choice.valueBitS.buf,ie_item->interfaceProtocolIE_Value.choice.valueBitS.size) ); + break; + case (E2N_InterfaceProtocolIE_Value_PR_valueOctS): + helper.add_protocol_ie_item(ie_item->interfaceProtocolIE_ID, ie_item->interfaceProtocolIE_Test, ie_item->interfaceProtocolIE_Value.present, std::string((const char *)ie_item->interfaceProtocolIE_Value.choice.valueOctS.buf,ie_item->interfaceProtocolIE_Value.choice.valueOctS.size) ); + break; + default: + mdclog_write(MDCLOG_ERR, "Error : %s, %d: Unkown interface protocol IE type %d in event trigger definition\n", __FILE__, __LINE__, ie_item->interfaceProtocolIE_Value.present); + return false; + } + } + + return true; +}; + + + + +// initialize +e2sm_indication::e2sm_indication(void) { + + memset(&gNodeB_ID, 0, sizeof(E2N_GlobalGNB_ID_t)); + + // allocate space for gNodeB id (used for encoding) + gNodeB_ID.gNB_ID.choice.gNB_ID.buf = (uint8_t *)calloc(4, sizeof(uint8_t)); + assert(gNodeB_ID.gNB_ID.choice.gNB_ID.buf != 0); + + // allocate space for plmn identity (used for encoding) + gNodeB_ID.pLMN_Identity.buf = (uint8_t *) calloc(4, sizeof(uint8_t)); + assert(gNodeB_ID.pLMN_Identity.buf != 0); + + header = 0; + header = (E2N_E2SM_gNB_X2_indicationHeader_t *)calloc(1, sizeof(E2N_E2SM_gNB_X2_indicationHeader_t)); + assert(header != 0); + + message = 0; + message = (E2N_E2SM_gNB_X2_indicationMessage_t *)calloc(1, sizeof(E2N_E2SM_gNB_X2_indicationMessage_t)); + assert(message != 0); +} + +e2sm_indication::~e2sm_indication(void){ + mdclog_write(MDCLOG_DEBUG, "Freeing E2N_E2SM Indication object memory"); + + free(gNodeB_ID.gNB_ID.choice.gNB_ID.buf); + free(gNodeB_ID.pLMN_Identity.buf); + + header->interface_ID.choice.global_gNB_ID = 0; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2SM_gNB_X2_indicationHeader, header); + + message->interfaceMessage.buf = 0; + message->interfaceMessage.size = 0; + + ASN_STRUCT_FREE(asn_DEF_E2N_E2SM_gNB_X2_indicationMessage, message); + mdclog_write(MDCLOG_DEBUG, "Freed E2SM Indication object memory"); + +} + + + +bool e2sm_indication::encode_indication_header(unsigned char *buf, size_t *size, e2sm_header_helper &helper){ + + bool res; + res = set_header_fields(header, helper); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2SM_gNB_X2_indicationHeader, header, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + error_string = "E2SM Indication Header Constraint failed : " + error_string; + + return false; + } + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2SM_gNB_X2_indicationHeader, header, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding E2N_E2SM Indication Header. Reason = " + error_string; + return false; + } + else if (retval.encoded > *size){ + std::stringstream ss; + ss <<"Error encoding E2SM Indication Header . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + else{ + *size = retval.encoded; + } + + return true; +} + + +bool e2sm_indication::encode_indication_message(unsigned char *buf, size_t *size, e2sm_message_helper &helper){ + + set_message_fields(message, helper); + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2SM_gNB_X2_indicationMessage, message, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + error_string = "E2SM Indication Message Constraint failed : " + error_string; + return false; + } + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2SM_gNB_X2_indicationMessage, message, buf, *size); + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding E2SM Indication Header. Reason = " + error_string; + return false; + } + else if (retval.encoded > *size){ + std::stringstream ss; + ss <<"Error encoding E2N_E2SM Indication Message . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + + return false; + } + else{ + *size = retval.encoded; + } + + return true; +} + + + +// Used when generating an indication header +bool e2sm_indication::set_header_fields(E2N_E2SM_gNB_X2_indicationHeader_t *header, e2sm_header_helper &helper){ + + if (header == 0){ + error_string = "Invalid reference for E2SM Indication Header set fields"; + return false; + } + + + header->interfaceDirection = helper.interface_direction; + header->interface_ID.present = E2N_Interface_ID_PR_global_gNB_ID; + header->interface_ID.choice.global_gNB_ID = &gNodeB_ID; + + + // to do : need to put correct code here for upding plmn id and gNodeB + // for now just place holders : + memcpy(gNodeB_ID.pLMN_Identity.buf, helper.plmn_id.c_str(), 3); + gNodeB_ID.pLMN_Identity.size = 3; + + memcpy(gNodeB_ID.gNB_ID.choice.gNB_ID.buf, helper.egNB_id.c_str(), 3); + gNodeB_ID.gNB_ID.choice.gNB_ID.size = 3; + + // we only do global gNodeB id for now, not eNodeB + gNodeB_ID.gNB_ID.present = E2N_GNB_ID_PR_gNB_ID; + + return true; + +}; + + +// used when decoding an indication header +bool e2sm_indication::get_header_fields(E2N_E2SM_gNB_X2_indicationHeader_t *header, e2sm_header_helper &helper){ + + if (header == 0){ + error_string = "Invalid reference for E2SM Indication header get fields"; + return false; + } + + helper.interface_direction = header->interfaceDirection; + 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); + 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); + + // to do : add code to decipher plmn and global gnodeb from ints (since that is likely the convention for packing) + + return true; +} + + + +// Used when generating an indication message +bool e2sm_indication::set_message_fields(E2N_E2SM_gNB_X2_indicationMessage_t *interface_message, e2sm_message_helper &helper){ + + if(interface_message == 0){ + error_string = "Invalid reference for E2SM Indication Message set fields"; + return false; + } + + // interface-message is an octet string. just point it to the buffer + interface_message->interfaceMessage.buf = &(helper.x2ap_pdu[0]); + interface_message->interfaceMessage.size = helper.x2ap_pdu_size; + + return true; + +}; + +// used when decoding an indication message +bool e2sm_indication::get_message_fields( E2N_E2SM_gNB_X2_indicationMessage_t *interface_message, e2sm_message_helper &helper){ + + + if(interface_message == 0){ + error_string = "Invalid reference for E2SM Indication Message get fields"; + return false; + } + + // interface message is an octet string + helper.x2ap_pdu = interface_message->interfaceMessage.buf;; + helper.x2ap_pdu_size = interface_message->interfaceMessage.size; + + return true; + +} + + + +// initialize +e2sm_control::e2sm_control(void) { + + memset(&gNodeB_ID, 0, sizeof(E2N_GlobalGNB_ID_t)); + + // allocate space for gNodeB id (used for encoding) + gNodeB_ID.gNB_ID.choice.gNB_ID.buf = (uint8_t *)calloc(4, sizeof(uint8_t)); + assert(gNodeB_ID.gNB_ID.choice.gNB_ID.buf != 0); + + // allocate space for plmn identity (used for encoding) + gNodeB_ID.pLMN_Identity.buf = (uint8_t *) calloc(4, sizeof(uint8_t)); + assert(gNodeB_ID.pLMN_Identity.buf != 0); + + header = 0; + header = (E2N_E2SM_gNB_X2_controlHeader_t *)calloc(1, sizeof(E2N_E2SM_gNB_X2_controlHeader_t)); + assert(header != 0); + + message = 0; + message = (E2N_E2SM_gNB_X2_controlMessage_t *)calloc(1, sizeof(E2N_E2SM_gNB_X2_controlMessage_t)); + assert(message != 0); +} + +e2sm_control::~e2sm_control(void){ + mdclog_write(MDCLOG_DEBUG, "Freeing E2SM Control object memory"); + + free(gNodeB_ID.gNB_ID.choice.gNB_ID.buf); + free(gNodeB_ID.pLMN_Identity.buf); + header->interface_ID.choice.global_gNB_ID = 0; + ASN_STRUCT_FREE(asn_DEF_E2N_E2SM_gNB_X2_controlHeader, header); + + message->interfaceMessage.buf = 0; + ASN_STRUCT_FREE(asn_DEF_E2N_E2SM_gNB_X2_controlMessage, message); + + mdclog_write(MDCLOG_DEBUG, "Freed E2SM Control object memory"); + +} + + + +bool e2sm_control::encode_control_header(unsigned char *buf, size_t *size, e2sm_header_helper &helper){ + + bool res; + res = set_header_fields(header, helper); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2SM_gNB_X2_controlHeader, header, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + error_string = "E2SM Control Header Constraint failed : " + error_string; + + return false; + } + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2SM_gNB_X2_controlHeader, header, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding E2SM Control Header. Reason = " + error_string; + return false; + } + else if (retval.encoded > *size){ + std::stringstream ss; + ss <<"Error encoding E2N_E2SM Control Header . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + else{ + *size = retval.encoded; + } + + return true; +} + + +bool e2sm_control::encode_control_message(unsigned char *buf, size_t *size, e2sm_message_helper &helper){ + + set_message_fields(message, helper); + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2SM_gNB_X2_controlMessage, message, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + error_string = "E2SM Control Message Constraint failed : " + error_string; + return false; + } + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_E2SM_gNB_X2_controlMessage, message, buf, *size); + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + error_string = "Error encoding E2SM Control Message. Reason = " + error_string; + return false; + } + else if (retval.encoded > *size){ + std::stringstream ss; + ss <<"Error encoding E2SM Control Message . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + + return false; + } + else{ + *size = retval.encoded; + } + + return true; +} + + + +// Used when generating an indication header +bool e2sm_control::set_header_fields(E2N_E2SM_gNB_X2_controlHeader_t *header, e2sm_header_helper &helper){ + + if (header == 0){ + error_string = "Invalid reference for E2SM Control Header set fields"; + return false; + } + + + header->interfaceDirection = helper.interface_direction; + header->interface_ID.present = E2N_Interface_ID_PR_global_gNB_ID; + header->interface_ID.choice.global_gNB_ID = &gNodeB_ID; + + + // to do : need to put correct code here for upding plmn id and gNodeB + // for now just place holders : + memcpy(gNodeB_ID.pLMN_Identity.buf, helper.plmn_id.c_str(), 3); + gNodeB_ID.pLMN_Identity.size = 3; + + memcpy(gNodeB_ID.gNB_ID.choice.gNB_ID.buf, helper.egNB_id.c_str(), 3); + gNodeB_ID.gNB_ID.choice.gNB_ID.size = 3; + + // we only do global gNodeB id for now, not eNodeB + gNodeB_ID.gNB_ID.present = E2N_GNB_ID_PR_gNB_ID; + + return true; + +}; + + +// used when decoding an indication header +bool e2sm_control::get_header_fields(E2N_E2SM_gNB_X2_controlHeader_t *header, e2sm_header_helper &helper){ + + if (header == 0){ + error_string = "Invalid reference for E2SM Control header get fields"; + return false; + } + + helper.interface_direction = header->interfaceDirection; + 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); + 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); + + // to do : add code to decipher plmn and global gnodeb from ints (since that is likely the convention for packing) + + return true; +} + + + +// Used when generating an indication message +bool e2sm_control::set_message_fields(E2N_E2SM_gNB_X2_controlMessage_t *interface_message, e2sm_message_helper &helper){ + + if(interface_message == 0){ + error_string = "Invalid reference for E2SM Control Message set fields"; + return false; + } + + // interface-message is an octet string. just point it to the buffer + interface_message->interfaceMessage.buf = &(helper.x2ap_pdu[0]); + interface_message->interfaceMessage.size = helper.x2ap_pdu_size; + + return true; + +}; + +// used when decoding an indication message +bool e2sm_control::get_message_fields( E2N_E2SM_gNB_X2_controlMessage_t *interface_message, e2sm_message_helper &helper){ + + + if(interface_message == 0){ + error_string = "Invalid reference for E2SM Control Message get fields"; + return false; + } + + // interface message is an octet string + helper.x2ap_pdu = interface_message->interfaceMessage.buf;; + helper.x2ap_pdu_size = interface_message->interfaceMessage.size; + + return true; + +} + diff --git a/src/xapp-formats/e2sm/e2sm.hpp b/src/xapp-formats/e2sm/e2sm.hpp new file mode 100644 index 0000000..a16d95c --- /dev/null +++ b/src/xapp-formats/e2sm/e2sm.hpp @@ -0,0 +1,145 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ + +/* Classes to handle E2 service model based on e2sm-gNB-X2-release-1-v040.asn */ + +#ifndef E2SM_ +#define E2SM_ + + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include "../../xapp-formats/e2sm/e2sm_helpers.hpp" + +#define INITIAL_LIST_SIZE 4 + + + + +/* builder class for E2SM event trigger definition */ + +class e2sm_event_trigger { +public: + e2sm_event_trigger(void); + ~e2sm_event_trigger(void); + + bool set_fields(E2N_E2SM_gNB_X2_eventTriggerDefinition_t *, e2sm_event_trigger_helper &); + bool get_fields(E2N_E2SM_gNB_X2_eventTriggerDefinition_t *, e2sm_event_trigger_helper &); + bool encode_event_trigger(unsigned char *, size_t *, e2sm_event_trigger_helper &); + + std::string get_error (void) const {return error_string ;}; + +private: + + E2N_E2SM_gNB_X2_eventTriggerDefinition_t * event_trigger; // used for encoding + E2N_GlobalGNB_ID_t gNodeB_ID; + struct E2N_InterfaceProtocolIE_Item * ie_list; + unsigned int ie_list_size; + + //std::vector ie_list; + E2N_E2SM_gNB_X2_eventTriggerDefinition::E2N_E2SM_gNB_X2_eventTriggerDefinition__interfaceProtocolIE_List *condition_list; + + char errbuf[128]; + size_t errbuf_len; + std::string error_string; +}; + + +/* builder class for E2SM indication using ASN1c */ + +class e2sm_indication { +public: + + e2sm_indication(void); + ~e2sm_indication(void); + + E2N_E2SM_gNB_X2_indicationHeader_t * get_header(void); + E2N_E2SM_gNB_X2_indicationMessage_t * get_message(void); + + bool set_header_fields(E2N_E2SM_gNB_X2_indicationHeader_t *, e2sm_header_helper &); + bool get_header_fields(E2N_E2SM_gNB_X2_indicationHeader_t *, e2sm_header_helper &); + + bool set_message_fields(E2N_E2SM_gNB_X2_indicationMessage_t *, e2sm_message_helper &); + bool get_message_fields(E2N_E2SM_gNB_X2_indicationMessage_t *, e2sm_message_helper &); + + bool encode_indication_header(unsigned char * , size_t * , e2sm_header_helper &); + bool encode_indication_message(unsigned char *, size_t *, e2sm_message_helper &); + std::string get_error (void) const {return error_string ; }; + +private: + + E2N_E2SM_gNB_X2_indicationHeader_t *header; // used for encoding + E2N_E2SM_gNB_X2_indicationMessage_t *message; // used for encoding + + char errbuf[128]; + size_t errbuf_len; + E2N_GlobalGNB_ID_t gNodeB_ID; + std::string error_string; + + +}; + +/* builder class for E2SM control using ASN1c */ + +class e2sm_control { +public: + + e2sm_control(void); + ~e2sm_control(void); + + E2N_E2SM_gNB_X2_controlHeader_t * get_header(void); + E2N_E2SM_gNB_X2_controlMessage_t * get_message(void); + + bool set_header_fields(E2N_E2SM_gNB_X2_controlHeader_t *, e2sm_header_helper &); + bool get_header_fields(E2N_E2SM_gNB_X2_controlHeader_t *, e2sm_header_helper &); + + bool set_message_fields(E2N_E2SM_gNB_X2_controlMessage_t *, e2sm_message_helper &); + bool get_message_fields(E2N_E2SM_gNB_X2_controlMessage_t *, e2sm_message_helper &); + + bool encode_control_header(unsigned char * , size_t * , e2sm_header_helper &); + bool encode_control_message(unsigned char *, size_t *, e2sm_message_helper &); + std::string get_error (void) const {return error_string ; }; + +private: + + E2N_E2SM_gNB_X2_controlHeader_t *header; // used for encoding + E2N_E2SM_gNB_X2_controlMessage_t *message; // used for encoding + + char errbuf[128]; + size_t errbuf_len; + E2N_GlobalGNB_ID_t gNodeB_ID; + std::string error_string; + + +}; + +#endif diff --git a/src/xapp-formats/e2sm/e2sm_helpers.hpp b/src/xapp-formats/e2sm/e2sm_helpers.hpp new file mode 100644 index 0000000..95ab8ca --- /dev/null +++ b/src/xapp-formats/e2sm/e2sm_helpers.hpp @@ -0,0 +1,115 @@ +/* + ================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, softwares + 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. + ================================================================================== +*/ + +/* Classes to handle E2 service model based on e2sm-gNB-X2-release-1-v040.asn */ + +#ifndef E2SM_HELPER_ +#define E2SM_HELPER_ + +#include +#include +#include +#include + + /* information holder for E2SM indication header */ +typedef struct e2sm_header_helper e2sm_header_helper; +struct e2sm_header_helper { + int egNB_id_type; + + std::string egNB_id; + std::string plmn_id; + + long int interface_direction; + unsigned char* timestamp; +}; + +/* information holder for E2SM indication message */ +typedef struct e2sm_message_helper e2sm_message_helper; +struct e2sm_message_helper { + unsigned char * x2ap_pdu; + size_t x2ap_pdu_size; +}; + + +/* information holder for E2SM Action Trigger Definition */ +struct Item +{ + Item(long int id, long int test, long int val_type, int value):interface_id(id), test(test), val_type(val_type), value_n(value){}; + Item(long int id, long int test, long int val_type, std::string value):interface_id(id), test(test), val_type(val_type), value_s(value){}; + + long int interface_id; + long int test; + long int val_type; + long int value_n; + std::string value_s; + +}; + +typedef struct e2sm_event_trigger_helper e2sm_event_trigger_helper; +struct e2sm_event_trigger_helper { + + int egNB_id_type; + std::string egNB_id; + std::string plmn_id; + + long int interface_direction; + long int procedure_code; + + long int message_type; + + + std::vector * get_list(void){ return &protocol_ie_list; }; + void add_protocol_ie_item(long int id, long int test , unsigned int val_type, long int value ){ + // into list + protocol_ie_list.emplace_back(id, test, val_type, value); + }; + + void add_protocol_ie_item(long int id, long int test, unsigned int val_type, std::string value){ + // into list + protocol_ie_list.emplace_back(id, test, val_type, value); + }; + + void clear(void){ + protocol_ie_list.clear(); + } + + std::string get_string(void) const { + std::stringstream ss; + ss << "egNB_ID_type = " << egNB_id_type << std::endl; + ss << "PLMN Id = " << plmn_id << std::endl; + ss << "Procedure Code = " << procedure_code << std::endl; + ss << "Message Type = " << message_type << std::endl; + + std::string info; + info = ss.str(); + return info; + } + + + +private: + + std::vector protocol_ie_list; + +}; + + + + +#endif diff --git a/src/xapp-mgmt/format_helper.hpp b/src/xapp-mgmt/format_helper.hpp new file mode 100644 index 0000000..8092173 --- /dev/null +++ b/src/xapp-mgmt/format_helper.hpp @@ -0,0 +1,49 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + + 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. +================================================================================== +*/ +/* + * a1_policy.hpp + * + * Created on: Mar, 2020 + * Author: Shraboni Jana + */ + +#ifndef SRC_XAPP_MGMT_A1MSG_A1_POLICY_HELPER_HPP_ +#define SRC_XAPP_MGMT_A1MSG_A1_POLICY_HELPER_HPP_ + +#include +#include +#include +#include + +using namespace rapidjson; + +typedef struct a1_policy_helper a1_policy_helper; + +struct a1_policy_helper{ + + std::string operation; + std::string policy_type_id; + std::string policy_instance_id; + std::string handler_id; + std::string status; + +}; + + +#endif /* SRC_XAPP_FORMATS_A1MSG_A1_POLICY_HELPER_HPP_ */ diff --git a/src/xapp-mgmt/msgs_proc.cc b/src/xapp-mgmt/msgs_proc.cc index 3b5223d..067f1bf 100644 --- a/src/xapp-mgmt/msgs_proc.cc +++ b/src/xapp-mgmt/msgs_proc.cc @@ -231,50 +231,121 @@ bool XappMsgHandler::decode_subscription_delete_response_failure(unsigned char* } -//For processing received messages. -void XappMsgHandler::operator()(rmr_mbuf_t *message, bool *resend){ +bool XappMsgHandler::a1_policy_handler(char * message, int *message_len, a1_policy_helper &helper){ - if (message->len > MAX_RMR_RECV_SIZE){ - mdclog_write(MDCLOG_ERR, "Error : %s, %d, RMR message larger than %d. Ignoring ...", __FILE__, __LINE__, MAX_RMR_RECV_SIZE); - return; + rapidjson::Document doc; + if (doc.Parse(message).HasParseError()){ + mdclog_write(MDCLOG_ERR, "Error: %s, %d :: Could not decode A1 JSON message %s\n", __FILE__, __LINE__, message); + return false; } - switch(message->mtype){ - //need to fix the health check. - case (RIC_HEALTH_CHECK_REQ): - message->mtype = RIC_HEALTH_CHECK_RESP; // if we're here we are running and all is ok - message->sub_id = -1; - strncpy( (char*)message->payload, "HELLOWORLD OK\n", rmr_payload_size( message) ); - *resend = true; - break; - - case (RIC_SUB_RESP): - //Received Subscription Response Message - decode_subscription_response(message->payload,message->len); - break; - - case (RIC_SUB_DEL_RESP): - decode_subscription_delete_response(message->payload,message->len); - break; - - case (RIC_SUB_FAILURE): - decode_subscription_response_failure(message->payload, message->len); - break; - - case (RIC_SUB_DEL_FAILURE): - decode_subscription_delete_response_failure(message->payload,message->len); - break; - // case A1_POLICY_REQ: - // break; - - - default: - *resend = false; - mdclog_write(MDCLOG_ERR, "Error :: Unknown message type %d received from RMR", message->mtype); - + //Extract Operation + rapidjson::Pointer temp1("/operation"); + rapidjson::Value * ref1 = temp1.Get(doc); + if (ref1 == NULL){ + mdclog_write(MDCLOG_ERR, "Error : %s, %d:: Could not extract policy type id from %s\n", __FILE__, __LINE__, message); + return false; + } + + helper.operation = ref1->GetString(); + + // Extract policy id type + rapidjson::Pointer temp2("/policy_type_id"); + rapidjson::Value * ref2 = temp2.Get(doc); + if (ref2 == NULL){ + mdclog_write(MDCLOG_ERR, "Error : %s, %d:: Could not extract policy type id from %s\n", __FILE__, __LINE__, message); + return false; } + helper.policy_type_id = ref2->GetString(); + + // Extract policy instance id + rapidjson::Pointer temp("/policy_instance_id"); + rapidjson::Value * ref = temp.Get(doc); + if (ref == NULL){ + mdclog_write(MDCLOG_ERR, "Error : %s, %d:: Could not extract policy type id from %s\n", __FILE__, __LINE__, message); + return false; + } + helper.policy_instance_id = ref->GetString(); + + if (helper.policy_type_id == "1" && helper.operation == "CREATE"){ + helper.status = "OK"; + Document::AllocatorType& alloc = doc.GetAllocator(); + + Value handler_id; + handler_id.SetString(helper.handler_id.c_str(), helper.handler_id.length(), alloc); + + Value status; + status.SetString(helper.status.c_str(), helper.status.length(), alloc); + + + doc.AddMember("handler_id", handler_id, alloc); + doc.AddMember("status",status, alloc); + doc.RemoveMember("operation"); + StringBuffer buffer; + Writer writer(buffer); + doc.Accept(writer); + strncpy(message,buffer.GetString(), buffer.GetLength()); + *message_len = buffer.GetLength(); + return true; + } + return false; + } + + +//For processing received messages.XappMsgHandler should mention if resend is required or not. +void XappMsgHandler::operator()(rmr_mbuf_t *message, bool *resend){ + + if (message->len > MAX_RMR_RECV_SIZE){ + mdclog_write(MDCLOG_ERR, "Error : %s, %d, RMR message larger than %d. Ignoring ...", __FILE__, __LINE__, MAX_RMR_RECV_SIZE); + return; + } + a1_policy_helper helper; + bool res=false; + switch(message->mtype){ + //need to fix the health check. + case (RIC_HEALTH_CHECK_REQ): + message->mtype = RIC_HEALTH_CHECK_RESP; // if we're here we are running and all is ok + message->sub_id = -1; + strncpy( (char*)message->payload, "HELLOWORLD OK\n", rmr_payload_size( message) ); + *resend = true; + break; + + case (RIC_SUB_RESP): + //Received Subscription Response Message + decode_subscription_response(message->payload,message->len); + break; + + case (RIC_SUB_DEL_RESP): + decode_subscription_delete_response(message->payload,message->len); + break; + + case (RIC_SUB_FAILURE): + decode_subscription_response_failure(message->payload, message->len); + break; + + case (RIC_SUB_DEL_FAILURE): + decode_subscription_delete_response_failure(message->payload,message->len); + break; + + case A1_POLICY_REQ: + + helper.handler_id = xapp_id; + res = a1_policy_handler((char*)message->payload, &message->len, helper); + if(res){ + message->mtype = A1_POLICY_RESP; // if we're here we are running and all is ok + message->sub_id = -1; + *resend = true; + } + break; + + default: + { + *resend = false; + mdclog_write(MDCLOG_ERR, "Error :: Unknown message type %d received from RMR", message->mtype); + } + } - return; + return; }; diff --git a/src/xapp-mgmt/msgs_proc.hpp b/src/xapp-mgmt/msgs_proc.hpp index ed9941f..8637440 100644 --- a/src/xapp-mgmt/msgs_proc.hpp +++ b/src/xapp-mgmt/msgs_proc.hpp @@ -30,27 +30,27 @@ #include #include - -#include -#include -#include -#include -#include "subscription_request.hpp" +#include "e2ap_control.hpp" +#include "e2ap_control_response.hpp" +#include "e2ap_indication.hpp" +#include "subscription_delete_request.hpp" +#include "subscription_delete_response.hpp" #include "subscription_helper.hpp" +#include "subscription_request.hpp" +#include "subscription_request.hpp" +#include "subscription_response.hpp" #include "e2sm.hpp" -#include -#include -#include +#include "format_helper.hpp" #define MAX_RMR_RECV_SIZE 2<<15 class XappMsgHandler{ private: - unsigned char* message_buffer; - size_t* message_length; - + std::string xapp_id; public: + //constructor for xapp_id. + XappMsgHandler(std::string xid){xapp_id=xid;}; void operator() (rmr_mbuf_t *, bool*); bool encode_subscription_request(unsigned char*, size_t* ); @@ -61,6 +61,7 @@ public: bool decode_subscription_response_failure(unsigned char*, size_t ); bool decode_subscription_delete_response_failure(unsigned char*, size_t ); + bool a1_policy_handler(char *, int* , a1_policy_helper &); }; diff --git a/src/xapp-mgmt/subs_mgmt.cc b/src/xapp-mgmt/subs_mgmt.cc index af53220..49997b6 100644 --- a/src/xapp-mgmt/subs_mgmt.cc +++ b/src/xapp-mgmt/subs_mgmt.cc @@ -40,7 +40,6 @@ void SubscriptionHandler::clear(void){ { std::lock_guard lock(*(_data_lock).get()); requests_table.clear(); - subscription_responses.clear(); } }; @@ -49,11 +48,6 @@ size_t SubscriptionHandler::num_pending(void) const { return requests_table.size(); } -size_t SubscriptionHandler::num_complete(void) const { - return subscription_responses.size(); -} - - void SubscriptionHandler::set_timeout(unsigned int timeout_seconds){ _time_out = std::chrono::seconds(timeout_seconds); } @@ -102,44 +96,11 @@ bool SubscriptionHandler::delete_request_entry(subscription_identifier id){ return false; }; -bool SubscriptionHandler::add_subscription_entry(subscription_identifier id, subscription_response_helper &he){ - - auto search = subscription_responses.find(id); - if (search == subscription_responses.end()){ - subscription_responses[id] = he; - return true; - } - - return false; -} - - -bool SubscriptionHandler::delete_subscription_entry(subscription_identifier id){ - - auto search = subscription_responses.find(id); - if(search == subscription_responses.end()){ - return false; - } - else{ - subscription_responses.erase(search); - return true; - } - -} -subscription_response_helper * const SubscriptionHandler::get_subscription(subscription_identifier id){ - auto search = subscription_responses.find(id); - if(search == subscription_responses.end()){ - return NULL; - } - else{ - return &(subscription_responses[id]); - } -}; // Handles responses from RMR -void SubscriptionHandler::Response(int message_type, unsigned char *payload, int payload_length, const char * node_id){ +/*void SubscriptionHandler::Response(int message_type, unsigned char *transaction_id, const char * node_id){ bool res; std::string node(node_id); @@ -323,7 +284,7 @@ void SubscriptionHandler::Response(int message_type, unsigned char *payload, int } } - +*/ int const SubscriptionHandler::get_request_status(subscription_identifier id){ auto search = requests_table.find(id); @@ -334,13 +295,7 @@ int const SubscriptionHandler::get_request_status(subscription_identifier id){ return search->second; } - bool SubscriptionHandler::is_subscription_entry(subscription_identifier id){ - auto search = subscription_responses.find(id); - if (search != subscription_responses.end()) - return true; - else - return false; -} + bool SubscriptionHandler::is_request_entry(subscription_identifier id){ auto search = requests_table.find(id); @@ -351,8 +306,3 @@ bool SubscriptionHandler::is_request_entry(subscription_identifier id){ } -void SubscriptionHandler::get_subscription_keys(std::vector & key_list){ - for(auto & e: subscription_responses){ - key_list.push_back(e.first); - } -} diff --git a/src/xapp-mgmt/subs_mgmt.hpp b/src/xapp-mgmt/subs_mgmt.hpp index 77458d3..3a40fe1 100644 --- a/src/xapp-mgmt/subs_mgmt.hpp +++ b/src/xapp-mgmt/subs_mgmt.hpp @@ -34,10 +34,10 @@ #include #include -#include "subscription_delete_request.hpp" -#include "subscription_delete_response.hpp" -#include "subscription_request.hpp" -#include "subscription_response.hpp" +#include "../xapp-formats/e2ap/subscription_delete_request.hpp" +#include "../xapp-formats/e2ap/subscription_delete_response.hpp" +#include "../xapp-formats/e2ap/subscription_request.hpp" +#include "../xapp-formats/e2ap/subscription_response.hpp" #define SUBSCR_SUCCESS 0 #define SUBSCR_ERR_TX 1 @@ -60,13 +60,7 @@ typedef enum { request_duplicate }Subscription_Status_Types; -using subscription_identifier = std::tuple; - -struct subscription_hasher { - size_t operator()(const subscription_identifier & key) const { - return std::hash{}(std::get<0>(key) + std::to_string(std::get<1>(key))); - } -}; +using subscription_identifier = std::string; //here subscription_identifier is the rmr transaction id. class SubscriptionHandler { @@ -77,10 +71,10 @@ public: void init(void); template - int request_subscription(std::string, int , Transmitter &&); + int request_subscription(std::string, Transmitter &&); template - int request_subscription_delete(subscription_helper &, subscription_response_helper &, std::string, int , Transmitter &&); + int request_subscription_delete(std::string, int , Transmitter &&); void Response(int, unsigned char *, int, const char *); int const get_request_status(subscription_identifier); @@ -109,9 +103,8 @@ private: bool get_subscription_entry(subscription_identifier); bool add_subscription_entry(subscription_identifier, subscription_response_helper &he); bool delete_subscription_entry(subscription_identifier); - - std::unordered_map requests_table; - std::unordered_map subscription_responses; // stores list of successful subscriptions + + std::unordered_map requests_table; std::unique_ptr _data_lock; std::unique_ptr _cv; @@ -123,19 +116,15 @@ private: }; template -int SubscriptionHandler::request_subscription(std::string node_id, int msgcode, Transmitter && tx){ - - // generate subscription identifier - subscription_identifier sub_id = std::make_tuple (node_id, 0); //0 is the function id which is hardcoded, which should come from rnib - - +int SubscriptionHandler::request_subscription(std::string rmr_trans_id, Transmitter && tx){ bool res; + // put entry in request table { std::lock_guard lock(*(_data_lock.get())); - res = add_request_entry(sub_id, request_pending); + res = add_request_entry(rmr_trans_id, request_pending); if(! res){ - mdclog_write(MDCLOG_ERR, "%s, %d : Error adding new subscription request %s, %d to queue because request with identical key already present", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); + mdclog_write(MDCLOG_ERR, "%s, %d : Error adding new subscription request %s to queue because request with identical key already present", __FILE__, __LINE__, rmr_trans_id); return SUBSCR_ERR_DUPLICATE; } } @@ -143,14 +132,13 @@ int SubscriptionHandler::request_subscription(std::string node_id, int msgcode, // acquire lock ... std::unique_lock _local_lock(*(_data_lock.get())); - // Send the message res = tx(); if (!res){ // clear state - delete_request_entry(sub_id); - mdclog_write(MDCLOG_ERR, "%s, %d :: Error transmitting subscription request %s, %d", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id) ); + delete_request_entry(rmr_trans_id); + mdclog_write(MDCLOG_ERR, "%s, %d :: Error transmitting subscription request %s", __FILE__, __LINE__, rmr_trans_id ); return SUBSCR_ERR_TX; }; @@ -166,12 +154,12 @@ int SubscriptionHandler::request_subscription(std::string node_id, int msgcode, // we have woken and acquired data_lock // check status and return appropriate object - int status = get_request_status(sub_id); + int status = get_request_status(rmr_trans_id); if (status == request_success){ // retreive & store the subscription response (why?) // response = subscription_responses[sub_id]; - mdclog_write(MDCLOG_INFO, "Successfully subscribed for request %s, %d", std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); + mdclog_write(MDCLOG_INFO, "Successfully subscribed for request %s, %d", rmr_trans_id); res = SUBSCR_SUCCESS; break; } @@ -182,24 +170,24 @@ int SubscriptionHandler::request_subscription(std::string node_id, int msgcode, std::chrono::duration f = end - start; if ( f > _num_retries * _time_out){ - mdclog_write(MDCLOG_ERR, "%s, %d:: Subscription request %s, %d timed out waiting for response ", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); + mdclog_write(MDCLOG_ERR, "%s, %d:: Subscription request with transaction id %s timed out waiting for response ", __FILE__, __LINE__, rmr_trans_id); res = SUBSCR_ERR_TIMEOUT; break; } else{ - mdclog_write(MDCLOG_INFO, "Subscription request %s, %d Waiting for response ....", std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); + mdclog_write(MDCLOG_INFO, "Subscription request with transaction id %s Waiting for response ....", rmr_trans_id); continue; } } if(status == request_failed){ - mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Subscription Request %s, %d got failure response .. \n", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); + mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Subscription Request with transaction id %s got failure response .. \n", __FILE__, __LINE__, rmr_trans_id); res = SUBSCR_ERR_FAIL; break; } if (status == request_duplicate){ - mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Subscription Request %s, %d is duplicate : subscription already present in table .. \n", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); + mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Subscription Request with transaction id %s is duplicate : subscription already present in table .. \n", __FILE__, __LINE__, rmr_trans_id); res = SUBSCR_ERR_DUPLICATE; break; @@ -207,128 +195,17 @@ int SubscriptionHandler::request_subscription(std::string node_id, int msgcode, // if we are here, some spurious // status obtained or request failed . we return appropriate error code - mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Spurious time out caused by invalid state of request %s, %d -- state = %d. Deleting request entry and failing .. \n", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id), status); + mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Spurious time out caused by invalid state of request %s, %d -- state = %d. Deleting request entry and failing .. \n", __FILE__, __LINE__, rmr_trans_id, status); res = SUBSCR_ERR_UNKNOWN; break; }; - delete_request_entry(sub_id); + delete_request_entry(rmr_trans_id); // release data lock _local_lock.unlock(); - std::cout <<"Returning res = " << res << " for request = " << std::get<0>(sub_id).c_str() << "," << std::get<1>(sub_id) << std::endl; + std::cout <<"Returning res = " << res << " for request = " << rmr_trans_id << std::endl; return res; }; - -/*template -int SubscriptionHandler::request_subscription_delete(subscription_helper &he, subscription_response_helper &response, std::string node_id, int TxCode, Transmitter && tx){ - - int res; - // generate subscription identifier - subscription_identifier sub_id = std::make_tuple (node_id, he.get_function_id()); - - // First check if we have this subscription - if(! is_subscription_entry(sub_id)){ - mdclog_write(MDCLOG_ERR, "subscription with id %s, %d does not exist. Cannot be deleted",std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - return SUBSCR_ERR_MISSING; - } - - // Also check if such a request is queued - if (is_request_entry(sub_id)){ - mdclog_write(MDCLOG_ERR, "Subscription delete request with id %s, %d already in queue",std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - return SUBSCR_ERR_DUPLICATE; - } - - subscription_delete e2ap_sub_req_del; - - // generate the delete request pdu - unsigned char buffer[128]; - size_t buf_len = 128; - - res = e2ap_sub_req_del.encode_e2ap_subscription(&buffer[0], &buf_len, he); - if(! res){ - mdclog_write(MDCLOG_ERR, "%s, %d: Error encoding subscription delete request pdu. Reason = %s", __FILE__, __LINE__, e2ap_sub_req_del.get_error().c_str()); - return SUBSCR_ERR_ENCODE; - } - - // put entry in request table - { - std::lock_guard lock(*(_data_lock.get())); - res = add_request_entry(sub_id, delete_request_pending); - if(!res){ - mdclog_write(MDCLOG_ERR, "%s, %d: Duplicate subscription delete request = %s, %d", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id) ); - return SUBSCR_ERR_DUPLICATE; - } - } - - std::unique_lock _local_lock(*(_data_lock.get())); - - // Send the message - res = tx(TxCode, buf_len, buffer); - - if (!res){ - delete_request_entry(sub_id); - mdclog_write(MDCLOG_ERR, "Error transmitting delete subscription request %s, %d", std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - return SUBSCR_ERR_TX; - }; - - - // record time stamp .. - auto start = std::chrono::system_clock::now(); - - res = SUBSCR_ERR_UNKNOWN; - while(1){ - - // wait to be woken up - _cv.get()->wait_for(_local_lock, _time_out); - - // check status and return appropriate object - int status = get_request_status(sub_id); - if (status == delete_request_success){ - mdclog_write(MDCLOG_INFO, "Successfully deleted subscription id %s, %d", std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - res = SUBSCR_SUCCESS; - break; - } - - if (status == delete_request_pending){ - // woken up spuriously or timed out - auto end = std::chrono::system_clock::now(); - std::chrono::duration f = end - start; - - if (f > _num_retries * _time_out){ - mdclog_write(MDCLOG_ERR, "Subscription delete request %s, %d timed out waiting for response ", std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - res = SUBSCR_ERR_TIMEOUT; - break; - } - else{ - mdclog_write(MDCLOG_INFO, "Subscription delete request %s, %d Waiting for response ....", std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - } - - continue; - } - - if(status == delete_request_failed){ - mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Subscription Delete Request %s, %d got failure response .. \n", __FILE__, __LINE__, std::get<0>(sub_id).c_str(), std::get<1>(sub_id)); - res = SUBSCR_ERR_FAIL; - break; - } - - // if we are here, some spurious - // status obtained. we return false - - mdclog_write(MDCLOG_ERR, "Error :: %s, %d : Spurious time out caused by invalid state of delete request %s, %d -- state = %d. Deleting request entry and failing .. \n", __FILE__, __LINE__,std::get<0>(sub_id).c_str(), std::get<1>(sub_id), status); - res = SUBSCR_ERR_UNKNOWN; - break; - - }; - - delete_request_entry(sub_id); - - // release data lock - _local_lock.unlock(); - std::cout <<"Returning res = " << res << " for " << std::get<0>(sub_id) << "," << std::get<1>(sub_id) << std::endl; - return res; -};*/ - #endif diff --git a/src/xapp-utils/xapp_rmr.cc b/src/xapp-utils/xapp_rmr.cc index c822e55..d03de88 100755 --- a/src/xapp-utils/xapp_rmr.cc +++ b/src/xapp-utils/xapp_rmr.cc @@ -33,7 +33,6 @@ XappRmr::XappRmr(std::string port, int rmrattempts){ }; XappRmr::~XappRmr(void){ - // free memory if(_xapp_received_buff) rmr_free_msg(_xapp_received_buff); @@ -44,6 +43,7 @@ XappRmr::~XappRmr(void){ if (_xapp_rmr_ctx){ rmr_close(_xapp_rmr_ctx); } + }; //Get RMR Context. @@ -65,25 +65,20 @@ void XappRmr::xapp_rmr_init(){ return; } -//RMR Returning to the sender. -bool XappRmr::xapp_rmr_rts() -{ - mdclog_write(MDCLOG_INFO,"RMR Return to sender, file= %s, line=%d",__FILE__,__LINE__); - if ( _xapp_rmr_ctx == NULL){ - mdclog_write(MDCLOG_ERR,"Error Initializing RMR, file= %s, line=%d",__FILE__,__LINE__); - } - while( ! rmr_ready(_xapp_rmr_ctx) ) { - mdclog_write(MDCLOG_INFO,">>> waiting for RMR, file= %s, line=%d",__FILE__,__LINE__); - sleep(1); - } - rmr_rts_msg(_xapp_rmr_ctx, _xapp_received_buff ); - sleep(1); - return true; -} + //RMR Send with payload and header. bool XappRmr::xapp_rmr_send(xapp_rmr_header *hdr, void *payload){ + // Get the thread id + std::thread::id my_id = std::this_thread::get_id(); + std::stringstream thread_id; + std::stringstream ss; + + thread_id << my_id; + mdclog_write(MDCLOG_INFO, "Sending thread %s", thread_id.str().c_str()); + + int rmr_attempts = _nattempts; if( _xapp_send_buff == NULL ) { @@ -114,7 +109,9 @@ bool XappRmr::xapp_rmr_send(xapp_rmr_header *hdr, void *payload){ else { mdclog_write(MDCLOG_INFO,"Need to retry RMR: state=%d, attempt=%d, file=%s, line=%d",_xapp_send_buff->state, rmr_attempts,__FILE__,__LINE__); - rmr_attempts--; + if(_xapp_send_buff->state == RMR_ERR_RETRY){ + usleep(1); } + rmr_attempts--; } sleep(1); } diff --git a/src/xapp-utils/xapp_rmr.hpp b/src/xapp-utils/xapp_rmr.hpp index 30aea8c..ab3e77a 100755 --- a/src/xapp-utils/xapp_rmr.hpp +++ b/src/xapp-utils/xapp_rmr.hpp @@ -77,7 +77,6 @@ public: template void xapp_rmr_receive(MessageProcessor&&, XappRmr *parent); bool xapp_rmr_send(xapp_rmr_header*, void*); - bool xapp_rmr_rts(); void set_listen(bool); bool get_listen(void); @@ -112,7 +111,7 @@ void XappRmr::xapp_rmr_receive(MsgHandler&& msgproc, XappRmr *parent){ this->_xapp_received_buff = rmr_alloc_msg(rmr_context, RMR_DEF_SIZE); assert(this->_xapp_received_buff != NULL); - mdclog_write(MDCLOG_INFO, "Starting thread %s", thread_id.str().c_str()); + mdclog_write(MDCLOG_INFO, "Starting receiver thread %s", thread_id.str().c_str()); while(parent->get_listen()) { mdclog_write(MDCLOG_INFO, "Listening at Thread: %s", thread_id.str().c_str()); @@ -132,6 +131,8 @@ void XappRmr::xapp_rmr_receive(MsgHandler&& msgproc, XappRmr *parent){ //in case message handler returns true, need to resend the message. msgproc(this->_xapp_received_buff, resend); if(*resend){ + //mdclog_write(MDCLOG_INFO,"RMR Return to Sender Message of Type: %d",this->_xapp_received_buff->mtype); + //mdclog_write(MDCLOG_INFO,"RMR Return to Sender Message: %s",(char*)this->_xapp_received_buff->payload); rmr_rts_msg(rmr_context, this->_xapp_received_buff ); sleep(1); *resend = false; diff --git a/src/xapp.cc b/src/xapp.cc index 4101699..54b75fd 100644 --- a/src/xapp.cc +++ b/src/xapp.cc @@ -20,7 +20,6 @@ * xapp.cc * * Created on: Mar, 2020 - * Author: Shraboni Jana */ #include "xapp.hpp" @@ -36,15 +35,27 @@ Xapp::~Xapp(void){ //Joining the threads int threadcnt = xapp_rcv_thread.size(); - for(int i=0; i~mutex(); + delete xapp_mutex; + } }; +//stop the xapp. +void Xapp::stop(void){ + // Get the mutex lock + std::lock_guard guard(*xapp_mutex); + rmr_ref->set_listen(false); + rmr_ref->~XappRmr(); + +} + void Xapp::init() { //get rnib information @@ -61,7 +72,7 @@ void Xapp::startup() { void Xapp::start_xapp_receiver(XappMsgHandler& mp_handler){ //start a receiver thread. Can be multiple receiver threads for more than 1 listening port. - + rmr_ref->set_listen(true); xapp_mutex = new std::mutex(); mdclog_write(MDCLOG_INFO,"Receiver Thread file= %s, line=%d",__FILE__,__LINE__); @@ -88,13 +99,13 @@ void Xapp::shutdown(){ void Xapp::startup_subscribe_requests(void ){ size_t data_size = ASN_BUFF_MAX_SIZE; unsigned char data[data_size]; - + std::string xapp_id = config_ref->operator [](XappSettings::SettingName::XAPP_ID); for(auto &it: rnib_gnblist){ int attempt = 0; - XappMsgHandler msg; + XappMsgHandler msg = XappMsgHandler(xapp_id); - /* bool res_encode = msg.encode_subscription_request(data, &data_size); - if(!res_encode) exit(0);*/ + //bool res_encode = msg.encode_subscription_request(data, &data_size); + //if(!res_encode) exit(0); char *strMsg = "HelloWorld\0"; strncpy((char *)data,strMsg,strlen(strMsg)); data_size = sizeof(data); @@ -106,6 +117,8 @@ void Xapp::startup_subscribe_requests(void ){ auto transmitter = std::bind(&XappRmr::xapp_rmr_send,rmr_ref, &rmr_header, (void*)data); transmitter(); //this will go to subscription manager. + //rmr_ref->xapp_rmr_call(&rmr_header,(char*)strMsg); + break; } } @@ -141,8 +154,11 @@ void Xapp::set_rnib_gnblist(void) { Document doc; doc.Parse((char*)result); assert(doc.HasMember("gnb_list")); + + const Value& gnblist = doc["gnb_list"]; assert(gnblist.IsArray()); + for (SizeType i = 0; i < gnblist.Size(); i++) // Uses SizeType instead of size_t { assert(gnblist[i].IsObject()); @@ -153,7 +169,8 @@ void Xapp::set_rnib_gnblist(void) { } closeSdl(); - free(result); + + //delete result; return; } diff --git a/src/xapp.hpp b/src/xapp.hpp index 680db1b..7f44c57 100644 --- a/src/xapp.hpp +++ b/src/xapp.hpp @@ -42,7 +42,7 @@ #include "subs_mgmt.hpp" #include "xapp_config.hpp" extern "C" { -#include "rnib/rnibreader.h" +#include "rnib/rnibreader_old.h" } using namespace std; using namespace std::placeholders; @@ -55,7 +55,7 @@ public: Xapp(XappSettings &, XappRmr &); ~Xapp(void); - + void stop(void); void startup(); void shutdown(void); void init(void); -- 2.16.6