mirror of https://github.com/PentHertz/srsLTE.git
s1ap - set multiple erab ids cause in replay when s1ap erab modify request has repeated ids.
This commit is contained in:
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bc16c46ffc
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985846e3bd
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@ -38,6 +38,7 @@ struct bearers_subject_to_status_transfer_item_ies_o;
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struct erab_level_qos_params_s;
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struct ho_cmd_s;
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struct erab_admitted_item_s;
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struct erab_to_be_modified_item_bearer_mod_req_s;
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template <class ies_set_paramT_>
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struct protocol_ie_single_container_s;
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@ -28,16 +28,16 @@ public:
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virtual bool setup_ue_ctxt(uint16_t rnti, const asn1::s1ap::init_context_setup_request_s& msg) = 0;
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virtual bool modify_ue_ctxt(uint16_t rnti, const asn1::s1ap::ue_context_mod_request_s& msg) = 0;
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virtual bool setup_ue_erabs(uint16_t rnti, const asn1::s1ap::erab_setup_request_s& msg) = 0;
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virtual void modify_erabs(uint16_t rnti,
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const asn1::s1ap::erab_modify_request_s& msg,
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std::vector<uint16_t>* erabs_modified,
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std::vector<uint16_t>* erabs_failed_to_modify) = 0;
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virtual bool release_erabs(uint32_t rnti) = 0;
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virtual void
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modify_erabs(uint16_t rnti,
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srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_to_modify,
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std::vector<uint16_t>* erabs_failed_to_modify) = 0;
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virtual bool release_erabs(uint32_t rnti) = 0;
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virtual void release_erabs(uint32_t rnti,
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const asn1::s1ap::erab_release_cmd_s& msg,
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std::vector<uint16_t>* erabs_released,
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std::vector<uint16_t>* erabs_failed_to_release) = 0;
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virtual void add_paging_id(uint32_t ueid, const asn1::s1ap::ue_paging_id_c& ue_paging_id) = 0;
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std::vector<uint16_t>* erabs_failed_to_release) = 0;
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virtual void add_paging_id(uint32_t ueid, const asn1::s1ap::ue_paging_id_c& ue_paging_id) = 0;
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/**
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* Reports the reception of S1 HandoverCommand / HandoverPreparationFailure or abnormal conditions during
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@ -82,10 +82,9 @@ public:
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bool setup_ue_ctxt(uint16_t rnti, const asn1::s1ap::init_context_setup_request_s& msg) override;
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bool modify_ue_ctxt(uint16_t rnti, const asn1::s1ap::ue_context_mod_request_s& msg) override;
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bool setup_ue_erabs(uint16_t rnti, const asn1::s1ap::erab_setup_request_s& msg) override;
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void modify_erabs(uint16_t rnti,
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const asn1::s1ap::erab_modify_request_s& msg,
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std::vector<uint16_t>* erabs_modified,
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std::vector<uint16_t>* erabs_failed_to_modify) override;
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void modify_erabs(uint16_t rnti,
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srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_to_modify,
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std::vector<uint16_t>* erabs_failed_to_modify) override;
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bool modify_ue_erab(uint16_t rnti,
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uint8_t erab_id,
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const asn1::s1ap::erab_level_qos_params_s& qos_params,
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@ -239,8 +239,9 @@ private:
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bool send_erab_setup_response(const asn1::s1ap::erab_setup_resp_s& res_);
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bool send_erab_release_response(const std::vector<uint16_t>& erabs_successfully_released,
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const std::vector<uint16_t>& erabs_failed_to_release);
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bool send_erab_modify_response(const std::vector<uint16_t>& erabs_successfully_released,
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const std::vector<uint16_t>& erabs_failed_to_release);
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bool send_erab_modify_response(
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srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_modified,
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srsran::const_span<std::pair<uint16_t, asn1::s1ap::cause_c> > erabs_failed_to_modify);
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bool send_erab_release_indication(const std::vector<uint16_t>& erabs_successfully_released);
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bool send_ue_cap_info_indication(srsran::unique_byte_buffer_t ue_radio_cap);
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@ -386,10 +386,9 @@ void rrc::release_erabs(uint32_t rnti,
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user_it->second->send_connection_reconf(nullptr, false, nas_pdu);
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}
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void rrc::modify_erabs(uint16_t rnti,
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const asn1::s1ap::erab_modify_request_s& msg,
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std::vector<uint16_t>* erabs_modified,
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std::vector<uint16_t>* erabs_failed_to_modify)
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void rrc::modify_erabs(uint16_t rnti,
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srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_to_modify,
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std::vector<uint16_t>* erabs_failed_to_modify)
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{
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logger.info("Modifying E-RABs for 0x%x", rnti);
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auto user_it = users.find(rnti);
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@ -399,36 +398,13 @@ void rrc::modify_erabs(uint16_t rnti,
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return;
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}
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const auto& erab_mod_list = msg.protocol_ies.erab_to_be_modified_list_bearer_mod_req.value;
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for (const auto* it = erab_mod_list.begin(); it != erab_mod_list.end(); ++it) {
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const auto& erab_to_mod = it->value.erab_to_be_modified_item_bearer_mod_req();
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for (const auto* it2 = it + 1; it2 != erab_mod_list.end(); ++it2) {
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// Detect repeated E-RAB IDs
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if (it2->value.erab_to_be_modified_item_bearer_mod_req().erab_id == erab_to_mod.erab_id) {
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erabs_failed_to_modify->push_back(it->id);
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continue;
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}
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}
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if (std::find(erabs_failed_to_modify->begin(), erabs_failed_to_modify->end(), erab_to_mod.erab_id) !=
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erabs_failed_to_modify->end()) {
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// Already added to the list of E-RABs that modification as failed
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continue;
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}
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for (const auto* erab_ptr : erabs_to_modify) {
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// Attempt to modify E-RAB
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bool ret = modify_ue_erab(rnti, erab_to_mod.erab_id, erab_to_mod.erab_level_qos_params, &erab_to_mod.nas_pdu);
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if (ret) {
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erabs_modified->push_back(erab_to_mod.erab_id);
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} else {
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erabs_failed_to_modify->push_back(erab_to_mod.erab_id);
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bool ret = modify_ue_erab(rnti, erab_ptr->erab_id, erab_ptr->erab_level_qos_params, &erab_ptr->nas_pdu);
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if (not ret) {
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erabs_failed_to_modify->push_back(erab_ptr->erab_id);
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}
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}
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// Sort output vectors by ERAB ID
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std::sort(erabs_modified->begin(), erabs_modified->end());
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std::sort(erabs_failed_to_modify->begin(), erabs_failed_to_modify->end());
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}
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bool rrc::modify_ue_erab(uint16_t rnti,
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@ -726,9 +726,6 @@ bool s1ap::handle_erabsetuprequest(const erab_setup_request_s& msg)
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bool s1ap::handle_erabmodifyrequest(const erab_modify_request_s& msg)
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{
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std::vector<uint16_t> erab_successful_modified = {};
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std::vector<uint16_t> erab_failed_to_modify = {};
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if (msg.ext) {
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logger.warning("Not handling S1AP message extension");
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}
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@ -738,11 +735,43 @@ bool s1ap::handle_erabmodifyrequest(const erab_modify_request_s& msg)
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return false;
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}
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// make a copy, sort by ERAB ID
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using erab_t = erab_to_be_modified_item_bearer_mod_req_s;
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srsran::bounded_vector<const erab_t*, 256> erab_mod_list;
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for (const auto& erab : msg.protocol_ies.erab_to_be_modified_list_bearer_mod_req.value) {
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erab_mod_list.push_back(&erab.value.erab_to_be_modified_item_bearer_mod_req());
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}
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auto lower_erab = [](const erab_t* lhs, const erab_t* rhs) { return lhs->erab_id < rhs->erab_id; };
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std::sort(erab_mod_list.begin(), erab_mod_list.end(), lower_erab);
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// Find repeated ERAB-IDs and add them to list of ERABs failed to modify
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std::vector<std::pair<uint16_t, cause_c> > erabs_failed_to_modify;
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auto new_end = std::unique(erab_mod_list.begin(), erab_mod_list.end());
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for (auto it = new_end; it != erab_mod_list.end(); ++it) {
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cause_c cause;
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cause.set_radio_network().value = cause_radio_network_opts::multiple_erab_id_instances;
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erabs_failed_to_modify.emplace_back((*it)->erab_id, cause);
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}
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erab_mod_list.erase(new_end, erab_mod_list.end());
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// Modify E-RABs from RRC
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rrc->modify_erabs(u->ctxt.rnti, msg, &erab_successful_modified, &erab_failed_to_modify);
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std::vector<uint16_t> unknown_erabids;
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rrc->modify_erabs(u->ctxt.rnti, erab_mod_list, &unknown_erabids);
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// Add Unknown E-RAB to the list of failed to modify
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for (uint16_t erab : unknown_erabids) {
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cause_c cause;
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cause.set_radio_network().value = cause_radio_network_opts::unknown_erab_id;
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erabs_failed_to_modify.emplace_back(erab, cause);
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auto lower_erab2 = [](const erab_t* lhs, uint16_t erab) { return lhs->erab_id < erab; };
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auto it = std::lower_bound(erab_mod_list.begin(), erab_mod_list.end(), erab, lower_erab2);
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if (it != erab_mod_list.end() and (*it)->erab_id == erab) {
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erab_mod_list.erase(it);
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}
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}
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// Send E-RAB modify response back to the MME
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if (not u->send_erab_modify_response(erab_successful_modified, erab_failed_to_modify)) {
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if (not u->send_erab_modify_response(erab_mod_list, erabs_failed_to_modify)) {
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logger.info("Failed to send ERABReleaseResponse");
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return false;
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}
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@ -1390,8 +1419,9 @@ bool s1ap::ue::send_erab_release_response(const std::vector<uint16_t>& erabs_suc
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return s1ap_ptr->sctp_send_s1ap_pdu(tx_pdu, ctxt.rnti, "E-RABReleaseResponse");
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}
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bool s1ap::ue::send_erab_modify_response(const std::vector<uint16_t>& erabs_successfully_modified,
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const std::vector<uint16_t>& erabs_failed_to_modify)
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bool s1ap::ue::send_erab_modify_response(
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srsran::const_span<const erab_to_be_modified_item_bearer_mod_req_s*> erabs_modified,
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srsran::const_span<std::pair<uint16_t, cause_c> > erabs_failed_to_modify)
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{
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if (not s1ap_ptr->mme_connected) {
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return false;
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@ -1405,13 +1435,13 @@ bool s1ap::ue::send_erab_modify_response(const std::vector<uint16_t>& erabs_succ
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container.mme_ue_s1ap_id.value = ctxt.mme_ue_s1ap_id.value();
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// Fill in which E-RABs were successfully released
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if (not erabs_successfully_modified.empty()) {
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if (not erabs_modified.empty()) {
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container.erab_modify_list_bearer_mod_res_present = true;
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container.erab_modify_list_bearer_mod_res.value.resize(erabs_successfully_modified.size());
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container.erab_modify_list_bearer_mod_res.value.resize(erabs_modified.size());
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for (uint32_t i = 0; i < container.erab_modify_list_bearer_mod_res.value.size(); i++) {
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container.erab_modify_list_bearer_mod_res.value[i].load_info_obj(ASN1_S1AP_ID_ERAB_MODIFY_ITEM_BEARER_MOD_RES);
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container.erab_modify_list_bearer_mod_res.value[i].value.erab_modify_item_bearer_mod_res().erab_id =
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erabs_successfully_modified[i];
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erabs_modified[i]->erab_id;
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}
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}
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@ -1421,11 +1451,8 @@ bool s1ap::ue::send_erab_modify_response(const std::vector<uint16_t>& erabs_succ
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container.erab_failed_to_modify_list.value.resize(erabs_failed_to_modify.size());
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for (uint32_t i = 0; i < container.erab_failed_to_modify_list.value.size(); i++) {
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container.erab_failed_to_modify_list.value[i].load_info_obj(ASN1_S1AP_ID_ERAB_ITEM);
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container.erab_failed_to_modify_list.value[i].value.erab_item().erab_id = erabs_failed_to_modify[i];
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container.erab_failed_to_modify_list.value[i].value.erab_item().cause.set(
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asn1::s1ap::cause_c::types_opts::radio_network);
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container.erab_failed_to_modify_list.value[i].value.erab_item().cause.radio_network().value =
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cause_radio_network_opts::unknown_erab_id;
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container.erab_failed_to_modify_list.value[i].value.erab_item().erab_id = erabs_failed_to_modify[i].first;
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container.erab_failed_to_modify_list.value[i].value.erab_item().cause = erabs_failed_to_modify[i].second;
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}
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}
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@ -168,10 +168,9 @@ public:
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bool setup_ue_ctxt(uint16_t rnti, const asn1::s1ap::init_context_setup_request_s& msg) override { return true; }
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bool modify_ue_ctxt(uint16_t rnti, const asn1::s1ap::ue_context_mod_request_s& msg) override { return true; }
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bool setup_ue_erabs(uint16_t rnti, const asn1::s1ap::erab_setup_request_s& msg) override { return true; }
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void modify_erabs(uint16_t rnti,
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const asn1::s1ap::erab_modify_request_s& msg,
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std::vector<uint16_t>* erabs_modified,
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std::vector<uint16_t>* erabs_failed_to_modify) override
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void modify_erabs(uint16_t rnti,
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srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_to_modify,
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std::vector<uint16_t>* erabs_failed_to_modify) override
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{}
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bool release_erabs(uint32_t rnti) override { return true; }
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void release_erabs(uint32_t rnti,
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@ -91,18 +91,21 @@ struct dummy_socket_manager : public srsran::socket_manager_itf {
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};
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struct rrc_tester : public rrc_dummy {
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void modify_erabs(uint16_t rnti,
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const asn1::s1ap::erab_modify_request_s& msg,
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std::vector<uint16_t>* erabs_modified,
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std::vector<uint16_t>* erabs_failed_to_modify) override
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void modify_erabs(uint16_t rnti,
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srsran::const_span<const asn1::s1ap::erab_to_be_modified_item_bearer_mod_req_s*> erabs_to_modify,
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std::vector<uint16_t>* erabs_failed_to_modify) override
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{
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*erabs_modified = next_erabs_modified;
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for (auto& erab : erabs_to_modify) {
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if (std::count(next_erabs_failed_to_modify.begin(), next_erabs_failed_to_modify.end(), erab->erab_id) == 0) {
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last_erabs_modified.push_back(erab->erab_id);
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}
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}
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*erabs_failed_to_modify = next_erabs_failed_to_modify;
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}
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void release_ue(uint16_t rnti) override { last_released_rnti = rnti; }
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uint16_t last_released_rnti = SRSRAN_INVALID_RNTI;
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std::vector<uint16_t> next_erabs_modified, next_erabs_failed_to_modify;
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std::vector<uint16_t> next_erabs_failed_to_modify, last_erabs_modified;
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};
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void run_s1_setup(s1ap& s1ap_obj, mme_dummy& mme)
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@ -229,8 +232,6 @@ void test_s1ap_erab_setup(test_event event)
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rrc.next_erabs_failed_to_modify.push_back(6);
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} else if (event == test_event::wrong_mme_s1ap_id) {
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mod_req_msg[12] = 0x02; // MME-UE-S1AP-ID = 2
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} else {
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rrc.next_erabs_modified.push_back(5);
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}
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sdu = srsran::make_byte_buffer();
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memcpy(sdu->msg, mod_req_msg, sizeof(mod_req_msg));
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