Can't send custom advertisement

[v1ack]

The problem Provide a clear and concise description of what the problem is.

I want to make an advertisement with custom manufacturer data, but raises dbus_next.errors.DBusError: Failed to parse advertisement.

Without ManufacturerData everything works

Reproduction Provide instructions or code samples that demonstrate the issue if possible>

NewAdv added to BlueZ campatibility (like in #85 )

import asyncio
from asyncio import sleep

from bless.backends.bluezdbus.dbus.advertisement import BlueZLEAdvertisement, Type
from bless.backends.bluezdbus.server import BlessServerBlueZDBus
from dbus_next import Variant
from dbus_next.service import dbus_property

class NewAdv(BlueZLEAdvertisement):
    @dbus_property()
    def TxPower(self) -> "n":  # type: ignore # noqa: F821
        return self._tx_power

    @TxPower.setter  # type: ignore
    def TxPower(self, dbm: "n"):  # type: ignore # noqa: F821
        self._tx_power = dbm

async def main():
    server = BlessServerBlueZDBus(name="my_service_name")
    await server.setup_task

    await server.app.set_name(server.adapter, server.name)
    advertisement = NewAdv(Type.BROADCAST, 1, server.app)

    # ManufacturerData = {UINT16: Variant}
    advertisement.ManufacturerData = {0x0002: Variant("s", "test string")}
    advertisement.ServiceUUIDs = ["00002800-0000-1000-8000-00805f9b34fb"]

    advertisement._tx_power = -23
    server.app.advertisements = [advertisement]

    server.bus.export(advertisement.path, advertisement)

    iface = server.adapter.get_interface("org.bluez.LEAdvertisingManager1")
    await iface.call_register_advertisement(advertisement.path, {})  # type: ignore

    await sleep(60)

asyncio.new_event_loop().run_until_complete(main())

Expected behavior Provide a clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Ubuntu 22.04
• bluez: 5.64

Additional context Add any other context about the problem here.

[v1ack]

I found an answer for my issue In the source code of bluez

struct ad_data {
    uint8_t data[25];
    uint8_t len;
};

struct manufacturer_data {
    uint16_t id;
    struct ad_data data;
};

Variant type must be ay So, ManufacturerData = {2: Variant("ay", b'12')} is valid Looks like it should be mentioned in docs

[kevincar]

@v1ack glad you found the solution. Since this seems to be DBus specific I'll close this. Please reopen if I'm missing something and you feel more should be implemented into bless.

[copywrite]

I found an answer for my issue In the source code of bluez

struct ad_data {
  uint8_t data[25];
  uint8_t len;
};

struct manufacturer_data {
  uint16_t id;
  struct ad_data data;
};

Variant type must be ay So, ManufacturerData = {2: Variant("ay", b'12')} is valid Looks like it should be mentioned in docs

I tried this on apple M1 pro but failed though