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etsi-qkd-sdn-connectivity.yang

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		/* Copyright 2021 ETSI
		Licensed under the BSD-3 Clause (https://forge.etsi.org/legal-matters) */

		module etsi-qkd-sdn-connectivity {

		yang-version "1.1";

		namespace "urn:etsi:qkd:yang:etsi-qkd-sdn-connectivity"; //TBD. Replaced when assigned.

		prefix "qkdnw-conn";

		import etsi-qkd-sdn-node { prefix "etsi-qkdn"; }
		import etsi-qkd-node-types { prefix "etsi-qkdn-types"; }
		import etsi-qkd-sdn-topology { prefix "qkdnw-tplg"; }

		organization "ETSI ISG QKD";

		contact
		"https://www.etsi.org/committee/qkd
		djcha@sk.com";

		description
		"This module contains the groupings and containers composing the software-defined QKD network
		connectivity service information models specified in ETSI GS QKD 018 V0.0.7";

		revision 2021-09-20 {
		description "The YANG module for QKD network connectivity service";
		}

		identity ACTION-RESULT {
		description "Base identity from which a specific action result is derived.";
		}
		identity SUCCESS {
		base ACTION-RESULT;
		description "Action was successful.";
		}
		identity FAIL {
		base ACTION-RESULT;
		description "Action failed.";
		}
		typedef action-result {
		type identityref {
		base ACTION-RESULT;
		}
		}

		grouping qkdn_id_ref {
		leaf qkdn_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:sdqkd_nodes/qkdnw-tplg:qkdn/qkdnw-tplg:qkdn_id";
		}
		description "A reference to the SD-QKD node.";
		}
		}

		grouping svc_link_id_ref {
		leaf svc_link_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:qkd_links/qkdnw-tplg:qkd_svc_links/qkdnw-tplg:svc_link/qkdnw-tplg:svc_link_id";
		}
		description "A reference to the QKD service link in QKD network topology.";
		}
		}

		grouping svc_link_local_qkdn_ref {
		leaf local_qkdn_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:qkd_links/qkdnw-tplg:qkd_svc_links/qkdnw-tplg:svc_link[qkdnw-tplg:svc_link_id=current()/../svc_link_id_ref]/qkdnw-tplg:svc_link_local_qkdn/qkdnw-tplg:qkdn_id_ref";
		}
		description "A reference to the local SD-QKD node of the QKD service link in QKD network topology.";
		}

		leaf local_qkdi_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:qkd_links/qkdnw-tplg:qkd_svc_links/qkdnw-tplg:svc_link[qkdnw-tplg:svc_link_id=current()/../svc_link_id_ref]/qkdnw-tplg:svc_link_local_qkdn/qkdnw-tplg:qkdi_id_ref";

		}
		description "A reference to the interface of the local SD-QKD node of the QKD service link in QKD network topology.";
		}
		}

		grouping svc_link_remote_qkdn_ref {
		leaf remote_qkdn_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:qkd_links/qkdnw-tplg:qkd_svc_links/qkdnw-tplg:svc_link[qkdnw-tplg:svc_link_id=current()/../svc_link_id_ref]/qkdnw-tplg:svc_link_remote_qkdn/qkdnw-tplg:qkdn_id_ref";
		}
		description "A reference to the remote SD-QKD node of the QKD service link in QKD network topology.";
		}

		leaf remote_qkdi_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:qkd_links/qkdnw-tplg:qkd_svc_links/qkdnw-tplg:svc_link[qkdnw-tplg:svc_link_id=current()/../svc_link_id_ref]/qkdnw-tplg:svc_link_remote_qkdn/qkdnw-tplg:qkdi_id_ref";
		}
		description "A reference to the interface of the remote SD-QKD node of the QKD service link in QKD network topology.";
		}

		}

		grouping qkdn_qkdi_id_ref {
		leaf qkdn_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:sdqkd_nodes/qkdnw-tplg:qkdn/qkdnw-tplg:qkdn_id";
		}
		description "Unique ID of the SD-QKD node.";
		}

		leaf qkdi_id_ref {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:sdqkd_nodes/qkdnw-tplg:qkdn[qkdnw-tplg:qkdn_id=current()/../qkdn_id_ref]"+
		"/qkdnw-tplg:qkd_interfaces/qkdnw-tplg:qkdi/qkdnw-tplg:qkdi_id";
		}
		description "Interface ID of the interface of the SD-QKD node.";
		}
		}

		grouping svc_link_key_rate_perf {
		leaf expected_consumption {
		type uint32;
		units "bps";
		description "The bandwidth (in bits per second) of the external application that is consuming keys from QKD service link.";
		}

		leaf skr {
		type uint32;
		units "bps";
		description "Secret key generation rate (in bits per second) of QKD service link.";
		}

		leaf eskr {
		type uint32;
		units "bps";
		description "Effective secret key generation rate (in bits per second) of QKD service link after the external application’s consumption.";
		}
		}

		grouping phys_links_per_path {
		leaf-list phys_links {
		type leafref {
		path "/qkdnw-tplg:qkd_network/qkdnw-tplg:qkd_links/qkdnw-tplg:qkd_phys_links/qkdnw-tplg:phys_link/qkdnw-tplg:phys_link_id";
		}
		min-elements 1;
		ordered-by system;
		description "A sequence of QKD physical links which constitute the specific key relay path.";
		}
		}

		grouping app_id_ref {
		leaf app_id_ref {
		type leafref {
		path "/qkdnw-conn:connectivity_service/qkdnw-conn:qkd_service/qkdnw-conn:qkd_app/qkdnw-conn:app_id";
		}
		description "A reference to a pair of applications extracting keys from a QKD key association link.";
		}
		}

		grouping app_mapped_svc_link_id_ref {
		leaf app_mapped_svc_link_id_ref {
		type leafref {
		path "/qkdnw-conn:connectivity_service/qkdnw-conn:qkd_service/qkdnw-conn:qkd_app[qkdnw-conn:app_id=current()/../app_id_ref]"+
		"/qkdnw-conn:app_mapped_svc_link/qkdnw-conn:svc_link_and_qkdn_ids/qkdnw-conn:svc_link_id_ref";
		}
		}
		}

		grouping path_constraints {
		container path_constraints {
		description "Container for constraints when requesting candidate paths calculation.";

		list include_nodes {
		key "qkdn_id_ref qkdi_id_ref";
		description "List of SD-QKD nodes and their interfaces which should be included in candidate paths list
		when SDQNC calculates candidate paths list.";

		uses qkdn_qkdi_id_ref {
		refine qkdn_id_ref {
		description "Unique ID of the SD-QKD node which should be included in candidate paths list.";
		}
		refine qkdi_id_ref {
		description "Interface ID of the SD-QKD node which should be included in candidate paths list.";
		}
		}
		}

		list exclude_nodes {
		key "qkdn_id_ref qkdi_id_ref";
		description "List of SD-QKD nodes and their interfaces which should be excluded in candidate paths list
		when SDQNC calculates candidate paths list.";

		uses qkdn_qkdi_id_ref {
		refine qkdn_id_ref {
		description "Unique ID of the SD-QKD node which should be excluded in candidate paths list.";
		}
		refine qkdi_id_ref {
		description "Interface ID of the SD-QKD node which should be excluded in candidate paths list.";
		}
		}
		}
		}
		}

		grouping candidate_paths {
		container candidate_paths {
		description "Container for key relay paths per QKD service link.";

		leaf num_of_candidate_paths {
		type uint32;
		description "The number of candidate paths which SDQNC calculates and provides.";
		}

		list candidate_path {
		key "path_id";
		description "List of end-to-end key relay paths.
		Each path consists of QKD physical links from the local SD-QKD node to the remote SD-QKD node";

		leaf path_id {
		type uint32;
		description "Priority of the specific path among candidate paths. This value is defined by SDQNC.";
		}

		uses phys_links_per_path;
		}
		}
		}

		grouping deploy_path {
		container deploy_path {
		description "Container for a path deployed among condidate paths.";

		leaf path_id {
		type uint32;
		description "Identifier of a path deployed for QKD service link. This value is chosen by SDNO from the path ids
		of candidate paths list after SDNO has received candidate paths list from SDQNC";
		}

		uses phys_links_per_path;
		}
		}


		container connectivity_service {
		description "Container for external applications requesting QKD-derived keys and paths supporting QKD service link.";

		container qkd_service {
		description "Container for external applications requesting QKD-derived keys.";

		list qkd_app {
		key "app_id";
		description "List of external applications requesting QKD-derived keys.";

		uses etsi-qkdn:app_basic;
		uses etsi-qkdn:app_details;
		uses etsi-qkdn:app_service_time;
		uses etsi-qkdn:app_statistics;
		uses etsi-qkdn:app_qos;

		container app_mapped_svc_link {
		description "Container for paths per QKD service link for a pair of applications.";

		container svc_link_and_qkdn_ids {
		uses svc_link_id_ref;
		uses svc_link_local_qkdn_ref;
		uses svc_link_remote_qkdn_ref;
		}

		uses path_constraints;
		uses candidate_paths;
		uses deploy_path;
		}
		}
		}
		}

		rpc app-registration {
		description "Request app registration to SDQNC.";
		input {
		uses app_id_ref;
		uses etsi-qkdn:app_details;
		}
		output {
		leaf response {
		type action-result;
		}
		}
		}

		rpc create-service-link-id-for-app {
		description "When an app requests service, SDNO or SDQNC assigns service link id for the app.";
		input {
		uses app_id_ref;
		container local_qkdn {
		uses qkdn_id_ref;
		}
		container remote_qkdn {
		uses qkdn_id_ref;
		}
		}
		output {
		uses svc_link_id_ref;
		}
		}

		rpc create-candidate-paths-per-service-link-for-app {
		description "Create candidate paths per the QKD service link for app.";
		input {
		uses app_id_ref;
		uses etsi-qkdn:app_qos;
		uses app_mapped_svc_link_id_ref;
		uses path_constraints;
		}
		output {
		uses candidate_paths;
		}
		}

		rpc update-candidate-paths-per-service-link-for-app {
		description "SDNO can request this rpc repeatedly until it finally selects a path among candidate paths.";
		input {
		uses app_id_ref;
		uses etsi-qkdn:app_qos;
		uses app_mapped_svc_link_id_ref;
		uses path_constraints;
		}
		output {
		uses candidate_paths;
		}
		}

		rpc deploy-a-candidate-path-per-service-link-for-app {
		description "Deploy a SDNO-selected path per QKD service link for app.";
		input {
		uses app_id_ref;
		uses app_mapped_svc_link_id_ref;
		leaf path_id {
		type uint32;
		}
		}
		output {
		leaf response {
		type action-result;
		}
		uses deploy_path;
		}
		}

		rpc delete-deployed-path-per-service-link-for-app {
		description "Delete the deployed path per QKD service link for app in order to reserve key resources.";
		input {
		uses app_id_ref;
		uses app_mapped_svc_link_id_ref;
		leaf path_id {
		type uint32;
		}
		}
		output {
		leaf response {
		type action-result;
		}
		uses etsi-qkdn:app_service_time;
		}
		}

		notification sdqkdn_application_new {
		container qkd_application {
		uses app_id_ref;
		uses etsi-qkdn:app_details;
		}
		}

		notification sdqkdn_application_deployed {
		container qkd_application {
		uses app_id_ref;
		uses etsi-qkdn:app_details;
		uses etsi-qkdn:app_qos;
		uses app_mapped_svc_link_id_ref;
		}
		}

		notification sdqkdn_application_qos_update {
		container qkd_application {
		uses app_id_ref;
		uses etsi-qkdn:app_details;
		uses etsi-qkdn:app_qos;
		}
		}

		notification sdqkdn_application_disconnected {
		container qkd_application {
		uses app_id_ref;
		}
		}

		notification alarm {
		container application {
		uses app_id_ref;
		leaf status {
		type etsi-qkdn-types:app-status-types;
		description "Status of the app.";
		}
		leaf message {
		type string;
		description "Message of an alarm.";
		}
		leaf severity {
		type etsi-qkdn-types:severity-types;
		description "Severity of an alarm.";
		}
		}
		}

		notification event {
		container application {
		uses app_id_ref;
		leaf status {
		type etsi-qkdn-types:app-status-types;
		description "Status of the app.";
		}

		leaf message {
		type string;
		description "Message of an alarm.";
		}

		leaf severity {
		type etsi-qkdn-types:severity-types;
		description "Severity of an alarm.";
		}
		}
		}
		}