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Commit db93353d authored by Thomas Girardier's avatar Thomas Girardier Committed by Automerger Merge Worker
Browse files

Merge "[Pandora] Add PTS-Bot GATT tests GATT/CL/GAW" am: ff003de7 

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2199266



Change-Id: Ic0d9b31377f8536e563ab0ce19bfd3f2dbc2c581
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 98b4adcc ff003de7

android/pandora/mmi2grpc/mmi2grpc/gatt.py

+231 −40
Original line number Diff line number Diff line
@@ -42,6 +42,8 @@ class GATTProxy(ProfileProxy): 
        self.characteristics = None

        self.descriptors = None

        self.read_response = None

        self.write_response = None

        self.written_over_length = False



    @assert_description

    def MMI_IUT_INITIATE_CONNECTION(self, test, pts_addr: bytes, **kwargs):
@@ -75,6 +77,8 @@ class GATTProxy(ProfileProxy): 
        self.characteristics = None

        self.descriptors = None

        self.read_response = None

        self.write_response = None

        self.written_over_length = False

        return "OK"



    @assert_description
@@ -104,7 +108,7 @@ class GATTProxy(ProfileProxy): 
        matches = re.findall("'([a0-Z9]*)'O and size = '([a0-Z9]*)'", description)

        handle = int(matches[0][0], 16)

        data = bytes([1]) * int(matches[0][1])

        self.gatt.WriteCharacteristicFromHandle(connection=self.connection,\

        self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"
@@ -435,12 +439,12 @@ class GATTProxy(ProfileProxy): 
        """



        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert self.read_response.readValue.status == AttStatusCode.INVALID_HANDLE

            assert self.read_response.status == AttStatusCode.INVALID_HANDLE

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert self.read_response.characteristics_read is not None

            assert AttStatusCode.INVALID_HANDLE in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues))

                    list(map(lambda characteristic_read: characteristic_read.status,\

                            self.read_response.characteristics_read))

        return "Yes"



    @assert_description
@@ -457,15 +461,14 @@ class GATTProxy(ProfileProxy): 
        # Android read error doesn't return an error code so we have to also

        # compare to the generic error code here.

        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert self.read_response.readValue.status == AttStatusCode.READ_NOT_PERMITTED or\

                    self.read_response.readValue.status == AttStatusCode.UNKNOWN_ERROR

            assert self.read_response.status == AttStatusCode.READ_NOT_PERMITTED or\

                    self.read_response.status == AttStatusCode.UNKNOWN_ERROR

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert AttStatusCode.READ_NOT_PERMITTED in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues)) or\

                    AttStatusCode.UNKNOWN_ERROR in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues))

            assert self.read_response.characteristics_read is not None

            status_list = list(map(lambda characteristic_read: characteristic_read.status,\

                    self.read_response.characteristics_read))

            assert AttStatusCode.READ_NOT_PERMITTED in status_list or\

                    AttStatusCode.UNKNOWN_ERROR in status_list

        return "Yes"



    @assert_description
@@ -480,12 +483,12 @@ class GATTProxy(ProfileProxy): 
        """



        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert self.read_response.readValue.status == AttStatusCode.INSUFFICIENT_AUTHENTICATION

            assert self.read_response.status == AttStatusCode.INSUFFICIENT_AUTHENTICATION

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert self.read_response.characteristics_read is not None

            assert AttStatusCode.INSUFFICIENT_AUTHENTICATION in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues))

                    list(map(lambda characteristic_read: characteristic_read.status,\

                            self.read_response.characteristics_read))

        return "Yes"



    def MMI_IUT_SEND_READ_CHARACTERISTIC_UUID(self, description: str, **kwargs):
@@ -519,15 +522,14 @@ class GATTProxy(ProfileProxy): 
        # Android read error doesn't return an error code so we have to also

        # compare to the generic error code here.

        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert self.read_response.readValue.status == AttStatusCode.ATTRIBUTE_NOT_FOUND or\

                    self.read_response.readValue.status == AttStatusCode.UNKNOWN_ERROR

            assert self.read_response.status == AttStatusCode.ATTRIBUTE_NOT_FOUND or\

                    self.read_response.status == AttStatusCode.UNKNOWN_ERROR

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert AttStatusCode.ATTRIBUTE_NOT_FOUND in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues)) or\

                    AttStatusCode.UNKNOWN_ERROR in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues))

            assert self.read_response.characteristics_read is not None

            status_list = list(map(lambda characteristic_read: characteristic_read.status,\

                    self.read_response.characteristics_read))

            assert AttStatusCode.ATTRIBUTE_NOT_FOUND in status_list or\

                    AttStatusCode.UNKNOWN_ERROR in status_list

        return "Yes"



    def MMI_IUT_SEND_READ_GREATER_OFFSET(self, description: str, **kwargs):
@@ -572,12 +574,12 @@ class GATTProxy(ProfileProxy): 
        """



        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert self.read_response.readValue.status == AttStatusCode.APPLICATION_ERROR

            assert self.read_response.status == AttStatusCode.APPLICATION_ERROR

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert self.read_response.characteristics_read is not None

            assert AttStatusCode.APPLICATION_ERROR in\

                    list(map(lambda read_value: read_value.status, self.read_response.readValues))

                    list(map(lambda characteristic_read: characteristic_read.status,\

                            self.read_response.characteristics_read))

        return "Yes"



    def MMI_IUT_CONFIRM_READ_CHARACTERISTIC_VALUE(self, description: str, **kwargs):
@@ -592,11 +594,13 @@ class GATTProxy(ProfileProxy): 


        characteristic_value = bytes.fromhex(re.findall("'([a0-Z9]*)'O", description)[0])

        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert characteristic_value in self.read_response.readValue.value

            assert self.read_response.value is not None

            assert characteristic_value in self.read_response.value.value

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert characteristic_value in list(map(lambda read_value: read_value.value, self.read_response.readValues))

            assert self.read_response.characteristics_read is not None

            assert characteristic_value in list(map(\

                    lambda characteristic_read: characteristic_read.value.value,\

                    self.read_response.characteristics_read))

        return "Yes"



    def MMI_IUT_READ_BY_TYPE_UUID(self, description: str, **kwargs):
@@ -643,12 +647,13 @@ class GATTProxy(ProfileProxy): 


        bytes_value = bytes.fromhex(re.search("value='(.*)'O", description)[1])

        if type(self.read_response) is ReadCharacteristicResponse:

            assert self.read_response.readValue is not None

            assert self.read_response.readValue.value == bytes_value

            assert self.read_response.value is not None

            assert self.read_response.value.value == bytes_value

        elif type(self.read_response) is ReadCharacteristicsFromUuidResponse:

            assert self.read_response.readValues is not None

            assert bytes_value in\

                    list(map(lambda read_value: read_value.value, self.read_response.readValues))

            assert self.read_response.characteristics_read is not None

            assert bytes_value in list(map(\

                    lambda characteristic_read: characteristic_read.value.value,\

                    self.read_response.characteristics_read))

        return "Yes"



    def MMI_IUT_SEND_READ_DESCIPTOR_HANDLE(self, description: str, **kwargs):
@@ -674,11 +679,197 @@ class GATTProxy(ProfileProxy): 
        send Read Descriptor to PTS random select adopted database.

        """



        assert self.read_response.readValue is not None

        assert self.read_response.value is not None

        bytes_value = bytes.fromhex(re.search("value='(.*)'O", description)[1])

        assert self.read_response.readValue.value == bytes_value

        assert self.read_response.value.value == bytes_value

        return "Yes"



    def MMI_IUT_SEND_WRITE_REQUEST(self, description: str, **kwargs):

        """

        Please send write request with characteristic handle = 'XXXX'O with <=

        'X' byte of any octet value to the PTS.



        Description: Verify that the

        Implementation Under Test (IUT) can send write request.

        """



        assert self.connection is not None

        matches = re.findall("'([a0-Z9]*)'O with <= '([a0-Z9]*)'", description)

        handle = stringHandleToInt(matches[0][0])

        data = bytes([1]) * int(matches[0][1])

        self.write_response = self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"



    @assert_description

    def MMI_IUT_CONFIRM_WRITE_INVALID_HANDLE(self, **kwargs):

        """

        Please confirm IUT received Invalid handle error. Click Yes if IUT

        received it, otherwise click No.



        Description: Verify that the

        Implementation Under Test (IUT) indicate Invalid handle error when write

        a characteristic.

        """



        assert self.write_response is not None

        assert self.write_response.status == AttStatusCode.INVALID_HANDLE

        return "Yes"



    @assert_description

    def MMI_IUT_CONFIRM_WRITE_NOT_PERMITTED(self, **kwargs):

        """

        Please confirm IUT received write is not permitted error. Click Yes if

        IUT received it, otherwise click No.



        Description: Verify that the

        Implementation Under Test (IUT) indicate write is not permitted error

        when write a characteristic.

        """



        assert self.write_response is not None

        assert self.write_response.status == AttStatusCode.WRITE_NOT_PERMITTED

        return "Yes"



    def MMI_IUT_SEND_PREPARE_WRITE(self, description: str, **kwargs):

        """

        Please send prepare write request with handle = 'XXXX'O <= 'XX' byte of

        any octet value to the PTS.



        Description: Verify that the Implementation

        Under Test (IUT) can send prepare write request.

        """



        assert self.connection is not None

        matches = re.findall("'([a0-Z9]*)'O <= '([a0-Z9]*)'", description)

        handle = stringHandleToInt(matches[0][0])

        data = bytes([1]) * int(matches[0][1])

        self.write_response = self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"



    def MMI_IUT_SEND_PREPARE_WRITE_GREATER_OFFSET(self, description: str, **kwargs):

        """

        Please send prepare write request with handle = 'XXXX'O and offset

        greater than 'XX' byte to the PTS.



        Description: Verify that the

        Implementation Under Test (IUT) can send prepare write request.

        """



        assert self.connection is not None

        matches = re.findall("'([a0-Z9]*)'O and offset greater than '([a0-Z9]*)'", description)

        handle = stringHandleToInt(matches[0][0])

        # Android APIs does not permit offset write, however we can test this by writing a value

        # longer than the characteristic's value size. As sometimes this MMI description will ask

        # for values greater than 512 bytes, we have to check for this or Android Bluetooth will

        # crash. Setting written_over_length to True in order to perform the check in next MMI.

        offset = int(matches[0][1]) + 1

        if offset <= 512:

            data = bytes([1]) * offset

            self.written_over_length = True

        else:

            data = bytes([1]) * 512

        self.write_response = self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"



    @assert_description

    def MMI_IUT_SEND_EXECUTE_WRITE_REQUEST(self, **kwargs):

        """

        Please send execute write request to the PTS.



        Description: Verify that

        the Implementation Under Test (IUT) can send execute write request.

        """



        # PTS Sends this MMI after the MMI_IUT_SEND_PREPARE_WRITE_GREATER_OFFSET,

        # nothing to do as we already wrote.

        return "OK"



    @assert_description

    def MMI_IUT_CONFIRM_WRITE_INVALID_OFFSET(self, **kwargs):

        """

        Please confirm IUT received Invalid offset error. Click Yes if IUT

        received it, otherwise click No.



        Description: Verify that the

        Implementation Under Test (IUT) indicate Invalid offset error when write

        a characteristic.

        """



        assert self.write_response is not None

        # See MMI_IUT_SEND_PREPARE_WRITE_GREATER_OFFSET

        if self.written_over_length == True:

            assert self.write_response.status == AttStatusCode.INVALID_ATTRIBUTE_LENGTH

        return "OK"



    def MMI_IUT_SEND_WRITE_REQUEST_GREATER(self, description: str, **kwargs):

        """

        Please send write request with characteristic handle = 'XXXX'O with

        greater than 'X' byte of any octet value to the PTS.



        Description:

        Verify that the Implementation Under Test (IUT) can send write request.

        """



        assert self.connection is not None

        matches = re.findall("'([a0-Z9]*)'O with greater than '([a0-Z9]*)'", description)

        handle = stringHandleToInt(matches[0][0])

        data = bytes([1]) * (int(matches[0][1]) + 1)

        self.write_response = self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"



    @assert_description

    def MMI_IUT_CONFIRM_WRITE_INVALID_LENGTH(self, **kwargs):

        """

        Please confirm IUT received Invalid attribute value length error. Click

        Yes if IUT received it, otherwise click No.



        Description: Verify that

        the Implementation Under Test (IUT) indicate Invalid attribute value

        length error when write a characteristic.

        """



        assert self.write_response is not None

        assert self.write_response.status == AttStatusCode.INVALID_ATTRIBUTE_LENGTH

        return "OK"



    def MMI_IUT_SEND_PREPARE_WRITE_REQUEST_GREATER(self, description: str, **kwargs):

        """

        Please send prepare write request with handle = 'XXXX'O with greater

        than 'XX' byte of any octet value to the PTS.



        Description: Verify that

        the Implementation Under Test (IUT) can send prepare write request.

        """



        assert self.connection is not None

        matches = re.findall("'([a0-Z9]*)'O with greater than '([a0-Z9]*)'", description)

        handle = stringHandleToInt(matches[0][0])

        data = bytes([1]) * (int(matches[0][1]) + 1)

        self.write_response = self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"



    def MMI_IUT_SEND_WRITE_COMMAND(self, description: str, **kwargs):

        """

        Please send write command with handle = 'XXXX'O with <= 'X' bytes of any

        octet value to the PTS.



        Description: Verify that the Implementation

        Under Test (IUT) can send write request.

        """



        assert self.connection is not None

        matches = re.findall("'([a0-Z9]*)'O with <= '([a0-Z9]*)'", description)

        handle = stringHandleToInt(matches[0][0])

        data = bytes([1]) * int(matches[0][1])

        self.write_response = self.gatt.WriteAttFromHandle(connection=self.connection,\

                handle=handle, value=data)

        return "OK"





common_uuid = "0000XXXX-0000-1000-8000-00805f9b34fb"

android/pandora/mmi2grpc/mmi2grpc/hogp.py

+3 −3
Original line number Diff line number Diff line
@@ -70,7 +70,7 @@ class HOGPProxy(ProfileProxy): 
             Properties: \[0x00(?P<properties>\S*)\]

        """



        self.gatt.WriteCharacteristicDescriptorFromHandle(

        self.gatt.WriteAttFromHandle(

            connection=self.connection,

            handle=int(handle, base=16),

            value=bytes([int(f"0x{properties}", base=16), 0]),
@@ -209,7 +209,7 @@ class HOGPProxy(ProfileProxy): 
        Descriptor handle value: (?P<value>\S*)

        """



        self.gatt.WriteCharacteristicDescriptorFromHandle(

        self.gatt.WriteAttFromHandle(

            connection=self.connection,

            handle=int(value, base=16),

            value=bytes([0x01, 0x00]),
@@ -237,7 +237,7 @@ class HOGPProxy(ProfileProxy): 
        self.characteristic_reads[handle] = action(

            connection=self.connection,

            handle=handle,

        ).readValue.value

        ).value.value



        return "OK"

android/pandora/server/configs/PtsBotTest.xml

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
        <option name="profile" value="GATT/CL/GAC" />

        <option name="profile" value="GATT/CL/GAD" />

        <option name="profile" value="GATT/CL/GAR" />

        <option name="profile" value="GATT/CL/GAW" />

        <option name="profile" value="HFP/AG/DIS" />

        <option name="profile" value="HFP/AG/HFI" />

        <option name="profile" value="HFP/AG/SLC" />

android/pandora/server/configs/pts_bot_tests_config.json

+18 −0
Original line number Diff line number Diff line
@@ -77,6 +77,17 @@ 
    "GATT/CL/GAR/BV-04-C",

    "GATT/CL/GAR/BV-06-C",

    "GATT/CL/GAR/BV-07-C",

    "GATT/CL/GAW/BI-02-C",

    "GATT/CL/GAW/BI-03-C",

    "GATT/CL/GAW/BI-07-C",

    "GATT/CL/GAW/BI-08-C",

    "GATT/CL/GAW/BI-09-C",

    "GATT/CL/GAW/BI-33-C",

    "GATT/CL/GAW/BI-34-C",

    "GATT/CL/GAW/BV-03-C",

    "GATT/CL/GAW/BV-05-C",

    "GATT/CL/GAW/BV-08-C",

    "GATT/CL/GAW/BV-09-C",

    "HOGP/RH/HGCF/BV-01-I",

    "HOGP/RH/HGDC/BV-01-I",

    "HOGP/RH/HGDC/BV-02-I",
@@ -240,6 +251,13 @@ 
    "GATT/CL/GAR/BI-16-C",

    "GATT/CL/GAR/BI-17-C",

    "GATT/CL/GAR/BV-03-C",

    "GATT/CL/GAW/BI-05-C",

    "GATT/CL/GAW/BI-06-C",

    "GATT/CL/GAW/BI-12-C",

    "GATT/CL/GAW/BI-13-C",

    "GATT/CL/GAW/BI-32-C",

    "GATT/CL/GAW/BV-01-C",

    "GATT/CL/GAW/BV-06-C",

    "HFP/AG/DIS/BV-01-I",

    "HFP/AG/HFI/BI-03-I",

    "HFP/AG/HFI/BV-02-I",

android/pandora/server/proto/pandora/gatt.proto

+26 −30
Original line number Diff line number Diff line
@@ -9,13 +9,10 @@ import "google/protobuf/empty.proto"; 


service GATT {

  // Request an MTU size.

  rpc ExchangeMTU(ExchangeMTURequest) returns (google.protobuf.Empty);

  rpc ExchangeMTU(ExchangeMTURequest) returns (ExchangeMTUResponse);



  // Writes on a characteristic.

  rpc WriteCharacteristicFromHandle(WriteCharacteristicRequest) returns (google.protobuf.Empty);



  // Writes on a characteristic with given descriptor handle.

  rpc WriteCharacteristicDescriptorFromHandle(WriteCharacteristicDescriptorFromHandleRequest) returns (WriteCharacteristicDescriptorFromHandleResponse);

  // Writes on the given characteristic or descriptor with given handle.

  rpc WriteAttFromHandle(WriteRequest) returns (WriteResponse);



  // Starts service discovery for given uuid.

  rpc DiscoverServiceByUuid(DiscoverServiceByUuidRequest) returns (DiscoverServicesResponse);
@@ -27,7 +24,7 @@ service GATT { 
  rpc DiscoverServicesSdp(DiscoverServicesSdpRequest) returns (DiscoverServicesSdpResponse);



  // Clears DUT GATT cache.

  rpc ClearCache(ClearCacheRequest) returns (google.protobuf.Empty);

  rpc ClearCache(ClearCacheRequest) returns (ClearCacheResponse);



  // Reads characteristic with given handle.

  rpc ReadCharacteristicFromHandle(ReadCharacteristicRequest) returns (ReadCharacteristicResponse);
@@ -44,9 +41,11 @@ enum AttStatusCode { 
  UNKNOWN_ERROR = 0x101;

  INVALID_HANDLE = 0x01;

  READ_NOT_PERMITTED = 0x02;

  WRITE_NOT_PERMITTED = 0x03;

  INSUFFICIENT_AUTHENTICATION = 0x05;

  INVALID_OFFSET = 0x07;

  ATTRIBUTE_NOT_FOUND = 0x0A;

  INVALID_ATTRIBUTE_LENGTH = 0x0D;

  APPLICATION_ERROR = 0x80;

}
@@ -65,20 +64,20 @@ message GattCharacteristic { 
  uint32 permissions = 2;

  string uuid = 3;

  uint32 handle = 4;

  repeated GattDescriptor descriptors = 5;

  repeated GattCharacteristicDescriptor descriptors = 5;

}



// A message representing a GATT descriptors.

message GattDescriptor {

message GattCharacteristicDescriptor {

  uint32 handle = 1;

  uint32 permissions = 2;

  string uuid = 3;

}



message GattReadValue {

message AttValue {

  // Descriptor handle or Characteristic handle (not Characteristic Value handle).

  uint32 handle = 1;

  bytes value = 2;

  AttStatusCode status = 3;

}



// Request for the `ExchangeMTU` rpc.
@@ -87,30 +86,22 @@ message ExchangeMTURequest { 
  int32 mtu = 2;

}



// Request for the `WriteCharacteristicFromHandle` rpc.

message WriteCharacteristicRequest {

  Connection connection = 1;

  uint32 handle = 2;

  bytes value = 3;

}

// Response for the `ExchangeMTU` rpc.

message ExchangeMTUResponse {}



// Request for the `WriteCharacteristicDescriptorFromHandle` rpc.

message WriteCharacteristicDescriptorFromHandleRequest {

// Request for the `WriteAttFromHandle` rpc.

message WriteRequest {

  Connection connection = 1;

  uint32 handle = 2;

  bytes value = 3;

}



// Response for the `WriteCharacteristicDescriptorFromHandle` rpc.

message WriteCharacteristicDescriptorFromHandleResponse {

  Connection connection = 1;

  uint32 handle = 2;

  bytes value = 3;

// Request for the `WriteAttFromHandle` rpc.

message WriteResponse {

  uint32 handle = 1;

  AttStatusCode status = 2;

}



// Response for the `WriteAttribute` rpc.

message WriteAttributeResponse {}



// Request for the `DiscoverServiceByUuid` rpc.

message DiscoverServiceByUuidRequest {

  Connection connection = 1;
@@ -142,6 +133,9 @@ message ClearCacheRequest { 
  Connection connection = 1;

}



// Response for the `ClearCache` rpc.

message ClearCacheResponse {}



// Request for the `ReadCharacteristicFromHandle` rpc.

message ReadCharacteristicRequest {

  Connection connection = 1;
@@ -158,12 +152,13 @@ message ReadCharacteristicsFromUuidRequest { 


// Response for the `ReadCharacteristicFromHandle` rpc.

message ReadCharacteristicResponse {

  GattReadValue readValue = 1;

  AttValue value = 1;

  AttStatusCode status = 2;

}



// Response for the `ReadCharacteristicsFromUuid` rpc.

message ReadCharacteristicsFromUuidResponse {

  repeated GattReadValue readValues = 1;

  repeated ReadCharacteristicResponse characteristics_read = 1;

}



// Request for the `ReadCharacteristicDescriptorFromHandle` rpc.
@@ -174,5 +169,6 @@ message ReadCharacteristicDescriptorRequest { 


// Response for the `ReadCharacteristicDescriptorFromHandle` rpc.

message ReadCharacteristicDescriptorResponse {

  GattReadValue readValue = 1;

  AttValue value = 1;

  AttStatusCode status = 2;

}