scd.yaml

openapi: 3.0.2
info:
  title: Strategic Coordination Test Data Injection
  version: 0.2.2
  description: >-
    This interface is implemented by every USS wishing to enable the automated testing framework to interact with the
    USS as a user planning flights.  This interaction capability is required by some automated tests.

components:
  securitySchemes:
    Authority:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://auth.example.com/oauth/token
          scopes:
            utm.inject_test_data: |-
              Client may inject test data into a USS for the purpose of conducting automated tests.
      description: |-
        Authorization from, or on behalf of, an authorization authority, augmenting standard scd authorization for the purpose of automated testing.

        This authority will issue access tokens that are JSON Web Tokens as defined in RFC 7519, using the `RS256` algorithm for the signature, and publish to all providers the public key for verifying that signature.

        The following fields must be included in the JWT claim for access tokens issued by this authority:

        * `exp`, with a time no further than 1 hour in the future.

        * `sub`, with unique ID of the client requesting the access token.

        * `scope`, with a string composed of a space-separated list of strings indicating the scopes granted, per RFC 6749.

        * `aud`, with the fully qualified domain name of the URL the access token will be used to access.  For example, if a USS were querying the endpoint at https://uss.example.com:8888/scd_injection/v1/flights/5a312fa5-4f63-444c-8919-21d7593a51bf, the access token included in the request should specify `"aud": "uss.example.com"`.

        Clients must provide these access tokens in an `Authorization` header in the form `Bearer <token>` in accordance with RFC 6750.

  schemas:
    StatusResponse:
      type: object
      required:
        - status
      properties:
        status:
          description: >-
            The status of the USS automated testing interface.

            - `Starting`: the USS is starting and the automated test driver should wait before sending requests.

            - `Ready`: the USS is ready to receive test requests.
          type: string
          enum: [Starting, Ready]
          example: Ready
    ################################################################################
    #################### Start of ASTM-standard definitions    #####################
    #################### interfaces/astm-utm/Protocol/utm.yaml #####################
    ################################################################################
    UUIDv4Format:
      description: >-
        String whose format matches a version-4 UUID according to RFC 4122.
      maxLength: 36
      minLength: 36
      type: string
      format: uuid
      pattern: >-
        ^[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-4[0-9a-fA-F]{3}\-[8-b][0-9a-fA-F]{3}\-[0-9a-fA-F]{12}$
      example: 03e5572a-f733-49af-bc14-8a18bd53ee39
    EntityID:
      description: >-
        Identifier for an Entity communicated through the DSS.  Formatted as a
        UUIDv4.
      anyOf:
        - $ref: '#/components/schemas/UUIDv4Format'
      example: 2f8343be-6482-4d1b-a474-16847e01af1e
    Time:
      required:
        - value
        - format
      type: object
      properties:
        value:
          type: string
          description: >-
            RFC3339-formatted time/date string.  The time zone must be 'Z'.
          format: date-time
          example: '1985-04-12T23:20:50.52Z'
        format:
          type: string
          enum:
            - RFC3339

    Radius:
      required:
        - value
        - units
      type: object
      properties:
        value:
          format: float
          description: >-
            Distance from the centerpoint of a circular area, along the WGS84
            ellipsoid.
          type: number
          minimum: 0
          exclusiveMinimum: true
          example: 300.183
        units:
          type: string
          description: >-
            FIXM-compatible units.  Only meters ("M") are acceptable for UTM.
          enum:
            - M
    Altitude:
      type: object
      required:
        - value
        - reference
        - units
      properties:
        value:
          description: >-
            The numeric value of the altitude. Note that min and max values are
            added as a sanity check. As use cases evolve and more options are
            made available in terms of units of measure or reference systems,
            these bounds may be re-evaluated.
          type: number
          format: double
          minimum: -8000
          exclusiveMinimum: false
          maximum: 100000
          exclusiveMaximum: false
        reference:
          description: >-
            A code indicating the reference for a vertical distance. See AIXM
            5.1 and FIXM 4.2.0. Currently, UTM only allows WGS84 with no
            immediate plans to allow other options. FIXM and AIXM allow for
            'SFC' which is equivalent to AGL.
          type: string
          enum:
            - W84
        units:
          description: >-
            The reference quantities used to express the value of altitude. See
            FIXM 4.2. Currently, UTM only allows meters with no immediate plans
            to allow other options.
          type: string
          enum:
            - M
    Latitude:
      description: >-
        Degrees of latitude north of the equator, with reference to the WGS84
        ellipsoid.
      maximum: 90
      exclusiveMaximum: false
      minimum: -90
      exclusiveMinimum: false
      type: number
      format: double
      example: 34.123
    Longitude:
      description: >-
        Degrees of longitude east of the Prime Meridian, with reference to the
        WGS84 ellipsoid.
      minimum: -180
      exclusiveMaximum: false
      maximum: 180
      exclusiveMinimum: false
      type: number
      format: double
      example: -118.456
    Polygon:
      description: >-
        An enclosed area on the earth. The bounding edges of this polygon are
        defined to be the shortest paths between connected vertices.  This
        means, for instance, that the edge between two points both defined at a
        particular latitude is not generally contained at that latitude. The
        winding order must be interpreted as the order which produces the
        smaller area. The path between two vertices is defined to be the
        shortest possible path between those vertices. Edges may not cross.
        Vertices may not be duplicated.  In particular, the final polygon vertex
        must not be identical to the first vertex.
      required:
        - vertices
      type: object
      properties:
        vertices:
          minItems: 3
          type: array
          items:
            $ref: '#/components/schemas/LatLngPoint'
    LatLngPoint:
      description: Point on the earth's surface.
      required:
        - lat
        - lng
      type: object
      properties:
        lng:
          $ref: '#/components/schemas/Longitude'
        lat:
          $ref: '#/components/schemas/Latitude'
    Circle:
      description: A circular area on the surface of the earth.
      type: object
      properties:
        center:
          $ref: '#/components/schemas/LatLngPoint'
        radius:
          $ref: '#/components/schemas/Radius'
    Volume3D:
      description: >-
        A three-dimensional geographic volume consisting of a
        vertically-extruded shape. Exactly one outline must be specified.
      type: object
      properties:
        outline_circle:
          anyOf:
            - $ref: '#/components/schemas/Circle'
          description: A circular geographic shape on the surface of the earth.
        outline_polygon:
          anyOf:
            - $ref: '#/components/schemas/Polygon'
          description: >-
            A polygonal geographic shape on the surface of the earth.
        altitude_lower:
          description: >-
            Minimum bounding altitude of this volume. Must be less than
            altitude_upper, if specified.
          anyOf:
            - $ref: '#/components/schemas/Altitude'
        altitude_upper:
          description: >-
            Maximum bounding altitude of this volume. Must be greater than
            altitude_lower, if specified.
          anyOf:
            - $ref: '#/components/schemas/Altitude'
    Volume4D:
      description: Contiguous block of geographic spacetime.
      required:
        - volume
      type: object
      properties:
        volume:
          $ref: '#/components/schemas/Volume3D'
        time_start:
          description: Beginning time of this volume. Must be before time_end.
          anyOf:
            - $ref: '#/components/schemas/Time'
        time_end:
          description: End time of this volume. Must be after time_start.
          anyOf:
            - $ref: '#/components/schemas/Time'
    OperationalIntentState:
      description: >-
        State of an operational intent.
        'Accepted': Operational intent is created and shared, but not yet in
        use; see standard text for more details.
        The create or update request for this operational intent reference must
        include a Key containing all OVNs for all relevant Entities.
        'Activated': Operational intent is in active use; see standard text for
        more details.
        The create or update request for this operational intent reference must
        include a Key containing all OVNs for all relevant Entities.
        'Nonconforming': UA is temporarily outside its volumes, but the
        situation is expected to be recoverable; see standard text for more
        details.
        In this state, the `/uss/v1/operational_intents/{entityid}/telemetry`
        USS-USS endpoint should respond, if available, to queries from USS
        peers.  The create or update request for this operational intent may
        omit a Key in this case because the operational intent is being adjusted
        as flown and cannot necessarily deconflict.
        'Contingent': UA is considered unrecoverably unable to conform with its
        coordinate operational intent; see standard text for more details.
        This state must transition to Ended.  In this state, the
        `/uss/v1/operational_intents/{entityid}/telemetry` USS-USS endpoint
        should respond, if available, to queries from USS peers.  The create or
        update request for this operational intent may omit a Key in this case
        because the operational intent is being adjusted as flown and cannot
        necessarily deconflict.
      type: string
      enum:
        - Accepted
        - Activated
        - Nonconforming
        - Contingent
    Priority:
      description: >-
        Ordinal priority of the operational intent, as defined by the
        regulator.  Operational intents with lesser values are lower priority
        than all operational intents with greater values.  A lower-priority
        operational intent may not create a conflict with a higher-priority
        operational intent.  A higher-priority operational intent may create a
        conflict with a lower-priority operational intent.  The regulator
        specifies whether an operational intent may create a conflict with other
        operational intents of the same priority.
      type: integer
      default: 0
    ################################################################################
    ####################### End of ASTM-standard definitions #######################
    ################################################################################

    OperationalIntentTestInjection:
      description: >-
        Parameters that define an operational intent: this injection is used to
        create a operational intent reference in the DSS and also responding to
        requests for details of that operational intent (by other USSes or the
        test driver). The USS under test will need to process this data to both
        create a valid operational intent reference and responding to a query for
        details.
      required:
        - state
        - priority
        - volumes
        - off_nominal_volumes
      type: object
      properties:
        state:
          $ref: '#/components/schemas/OperationalIntentState'
        priority:
          $ref: '#/components/schemas/Priority'
        volumes:
          description: >-
            Nominal volumes, as would be reported by a USS's operational_intents endpoint.
          type: array
          items:
            $ref: '#/components/schemas/Volume4D'
        off_nominal_volumes:
          description: >-
            Off-Nominal volumes, as would be reported by a USS's operational_intents endpoint.
          type: array
          items:
            $ref: '#/components/schemas/Volume4D'
    FlightAuthorisationData:
      description: |-
        A dataset to hold details of a UAS flight authorization request. Full description of a flight authorisation including mandatory information required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664 for an UAS flight authorisation request. Reference: https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32021R0664&from=EN#d1e32-178-1
      type: object
      properties:
        uas_serial_number:
          type: string
          description: Unique serial number of the unmanned aircraft or, if the unmanned aircraft is privately built, the unique serial number of the add-on. This is expressed in the ANSI/CTA-2063 Physical Serial Number format. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 1.
          example: MFR1C123456789ABC
        operation_mode:
          $ref: '#/components/schemas/OperationMode'
        operation_category:
          type: string
          enum:
            - Unknown
            - Open
            - Specific
            - Certified
          description: |-
            Category of UAS operation (‘open’, ‘specific’, ‘certified’) as defined in COMMISSION DELEGATED REGULATION (EU) 2019/945. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 4.
          example: Open
        uas_class:
          $ref: '#/components/schemas/UASClass'
        identification_technologies:
          type: array
          items:
            type: string
          description: Technology used to identify the UAS. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 6.
          example: ['ADS-B', 'ASTMNetRID']
        uas_type_certificate:
          description: |-
            Provisional field. Not applicable as of September 2021. Required only if `uas_class` is set to `other` by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 4.
          type: string
          example: ''
        connectivity_methods:
          type: array
          items:
            type: string
          description: Connectivity methods. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 7.
          example: ['cellular']
        endurance_minutes:
          description: Endurance of the UAS. This is expressed in minutes. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 8.
          type: number
          format: int32
          example: 20
        emergency_procedure_url:
          type: string
          format: url
          description: The URL at which the applicable emergency procedure in case of a loss of command and control link may be retrieved. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 9.
          example: https://utm_uss.com/emergency_procedure
        operator_id:
          type: string
          description: |-
            Registration number of the UAS operator.
            The format is defined in EASA Easy Access Rules for Unmanned Aircraft Systems GM1 to AMC1
            Article 14(6) Registration of UAS operators and ‘certified’ UAS.
            Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 10.
          example: FIN87astrdge12k8
        uas_id:
          description: |-
            When applicable, the registration number of the unmanned aircraft.
            This is expressed using the nationality and registration mark of the unmanned aircraft in
            line with ICAO Annex 7.
            Specified by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 10.
          type: string
          example: HB-XXXX
      required:
        - uas_serial_number
        - operation_mode
        - uas_class
        - identification_technologies
        - operator_id
        - operation_category
        - connectivity_methods
        - endurance_minutes
        - emergency_procedure_url

    OperationMode:
      type: string
      enum:
        - Undeclared
        - Vlos
        - Bvlos
      description: Specify if the operation is a `VLOS` or `BVLOS` operation. Required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 2.
      example: Vlos

    UASClass:
      type: string
      enum:
        - Other
        - C0
        - C1
        - C2
        - C3
        - C4
        - C5
        - C6
      description: Specify the class of the UAS to be flown, the specifition matches EASA class identification label categories. UAS aircraft class as defined in COMMISSION DELEGATED REGULATION (EU) 2019/945 (C0 to C4) and COMMISSION DELEGATED REGULATION (EU) 2020/1058 (C5 and C6). This field is required by ANNEX IV of COMMISSION IMPLEMENTING REGULATION (EU) 2021/664, paragraph 4.
      example: C0
    InjectFlightRequest:
      type: object
      properties:
        operational_intent:
          $ref: '#/components/schemas/OperationalIntentTestInjection'

        flight_authorisation:
          $ref: '#/components/schemas/FlightAuthorisationData'
    InjectFlightResponse:
      type: object
      required:
        - result
      properties:
        result:
          description: >-
            The result of the flight submission.
            If any option other than `Planned` or `ReadyToFly` is specified, the `notes` field should be populated with the reason for the unsuccessful outcome.

              - `Planned`: The flight submission data was valid and the flight was successfully processed by the USS and is now authorized.

              - `ReadyToFly`: The flight is ready for the operator to begin flying.

              - `Rejected`: The flight submission data provided was invalid and/or could not be used to attempt to authorize the flight.  The reason for rejection may include a disallowed conflict with another flight.

              - `ConflictWithFlight`: (deprecated; use Rejected instead) The flight submission data was valid, but the flight could not be authorized because of a disallowed conflict with another flight.

              - `Failed`: The USS was not able to successfully authorize the flight due to a problem with the USS or a downstream system
            
              - `NotSupported`: The USS does not support the attempted interaction.  For instance, if the request specified a high-priority flight and the USS does not support management of high-priority flights.

          type: string
          enum: [Planned, ReadyToFly, Rejected, ConflictWithFlight, Failed, NotSupported]
          example: Planned
        notes:
          description: >-
            Human-readable explanation of the observed result.  This explanation
            should be available to a human reviewing the test results, and
            ideally should explain why an undesirable result was obtained.  For
            instance, if the injection attempt Failed, then these notes may
            indicate that the attempt failed because the DSS indicated 400 to a
            valid request (perhaps also including the valid request as proof).
          type: string
          example: Requested flight intersected operational intent c036326c-c97b-4926-bf9f-c60dc83d2b57
        operational_intent_id:
          description: The id of the operational intent communicated to the DSS. This value is only required when the result of the flight submission is `Planned`.
          anyOf:
            - $ref: '#/components/schemas/EntityID'
    DeleteFlightResponse:
      type: object
      required:
      - result
      properties:
        result:
          description: >-
            The result of attempted flight cancellation/closure

              - `Closed`: The flight was closed successfully by the USS and is now out of the UTM system.

              - `Failed`: The flight could not be closed successfully by the USS.

          enum: [Closed, Failed]
          example: Failed
        notes:
          description: >-
            Human-readable explanation of the observed result.
          type: string
          example: DSS was unreachable when attempting to delete operational intent reference
    ClearAreaRequest:
      type: object
      required:
      - request_id
      - extent
      properties:
        request_id:
          description: >-
            Unique string identifying this request.  If a second request with an
            identical ID is received, the USS may return the same response from
            the previous operation rather than attempting to clear the area
            again (the USS may also attempt to clear the area again).
          type: string
        extent:
          description: >-
            The USS should cancel and remove any flight where any part of that
            flight intersects this area.
          anyOf:
            - $ref: '#/components/schemas/Volume4D'
    ClearAreaOutcome:
      type: object
      required:
      - timestamp
      properties:
        success:
          description: >-
            True if, and only if, all flights in the specified area owned by the
            USS were canceled and removed.
          type: boolean
          default: false
        message:
          description: >-
            If the USS was unable to clear the entire area, this message can
            provide information on the problem encountered.
          type: string
          example: >-
            DSS at dss.example.com returned 500 when attempting to delete
            operational intent 57e98b17-aefa-4eee-a376-5140e4a8385f
        timestamp:
          description: >-
            The time at which this operation was performed by the USS.
          type: string
          format: datetime
    ClearAreaResponse:
      type: object
      required:
      - outcome
      properties:
        outcome:
          $ref: '#/components/schemas/ClearAreaOutcome'
    Capability:
      type: string
      description: >-
        Capability of a USS.

          `FlightAuthorisationValidation`: USS supports EU flight authorisation
            parameter validation.

          `BasicStrategicConflictDetection`: USS supports strategic conflict
            detection for typical flights, including future planning (Accepted
            operational intents), activation (Accepted operational intents), and
            closing (deleting the operational intent reference).

          `HighPriorityFlights`: USS supports flights at priority levels higher
            than typical flights.
      enum:
      - FlightAuthorisationValidation
      - BasicStrategicConflictDetection
      - HighPriorityFlights
    CapabilitiesResponse:
      type: object
      properties:
        capabilities:
          type: array
          description: Set of capabilities supported by this USS.
          items:
            $ref: '#/components/schemas/Capability'
          default: []

paths:
  /v1/status:
    get:
      deprecated: true
      security:
        - Authority:
            - utm.inject_test_data
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
          description: >-
            The USS automated testing interface is activated and its status was retrieved successfully.
        '401':
          description: Bearer access token was not provided in Authorization header, token could not be decoded, or token was invalid.
        '403':
          description: The access token was decoded successfully but did not include a scope appropriate to this endpoint.
        '404':
          description: The USS automated testing interface is not activated.
      summary: Retrieve the status of the USS automated testing interface
      description: Get the status of the USS automated testing interface

  /v1/capabilities:
    get:
      deprecated: true
      security:
      - Authority:
          - utm.inject_test_data
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CapabilitiesResponse'
          description: >-
            The capabilities of the USS under test were retrieved successfully.
        '401':
          description: Bearer access token was not provided in Authorization header, token could not be decoded, or token was invalid.
        '403':
          description: The access token was decoded successfully but did not include a scope appropriate to this endpoint.
      summary: Retrieve the capabilities of the USS under test
      description: Retrieve the capabilities of the USS under test

  /v1/flights/{flight_id}:
    parameters:
    - name: flight_id
      in: path
      required: true
      description: A UUID string identifying the injected flight.
      schema:
        $ref: '#/components/schemas/UUIDv4Format'

    put:
      deprecated: true
      security:
        - Authority:
            - utm.inject_test_data

      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InjectFlightRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InjectFlightResponse'
          description: Requested data was processed successfully
        '401':
          description: Bearer access token was not provided in Authorization header, token could not be decoded, or token was invalid.
        '403':
          description: The access token was decoded successfully but did not include a scope appropriate to this endpoint.

      summary: Inject flight
      operationId: injectFlight
      description: >-
        This endpoint simulates the operator intention to submit a flight operation / flight request.

    delete:
      deprecated: true
      security:
      - Authority:
        - utm.inject_test_data

      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeleteFlightResponse'
          description: Flight was deleted from the system successfully
        '401':
          description: Bearer access token was not provided in Authorization header, token could not be decoded, or token was invalid.
        '403':
          description: The access token was decoded successfully but did not include a scope appropriate to this endpoint.

      summary: Delete flight
      operationId: deleteFlight
      description: >-
        This endpoint simulates the operator intention to cancel or end a flight operation.

  /v1/clear_area_requests:
    post:
      deprecated: true
      security:
      - Authority:
        - utm.inject_test_data

      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ClearAreaRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ClearAreaResponse'
          description: Requested area was cleared successfully
        '401':
          description: Bearer access token was not provided in Authorization header, token could not be decoded, or token was invalid.
        '403':
          description: The access token was decoded successfully but did not include a scope appropriate to this endpoint.

      summary: Clear area
      operationId: clearArea
      description: >-
        This endpoint requests that the USS cancel and remove all flights in the specified area.