Hi Luiz,
On 04/12/2018 19:53, Luiz Augusto von Dentz wrote:
Hi Matt,
On Mon, Dec 3, 2018 at 3:59 PM Matt <mwtaylor@xxxxxxxxx> wrote:
Hi,
When setting a UUIDs discovery filter I am receiving
"org.bluez.Error.InProgress" on starting a scan (which isn't in progress
and will not start unless the discovery filter is cleared).
I am using bluez 5.50 (on openWRT). The problem seems to only appear on
big endian hardware (tested a couple of recent kernel and bluez
versions), the same software compiled for and tested on little endian
hardware works as expected. The issue can be reproduced in the following
way using bluetoothctl:
# /etc/init.d/bluetoothd restart
# bluetoothctl
[bluetooth]# power on
Changing power on succeeded
[CHG] Controller 00:1A:7D:DA:71:13 Powered: yes
[bluetooth]# menu scan
[bluetooth]# uuids 0000180f-0000-1000-8000-00805f9b34fb
[bluetooth]# back
[bluetooth]# scan on
SetDiscoveryFilter success
Failed to start discovery: org.bluez.Error.InProgress
Setting an rssi filter does work as expected on my big endian hardware,
it is only the uuids filter that appears to show this problem. The issue
appears whether set using bluetoothctl or directly using DBus.
Do you have the bluetoothd logs when that happens? I wonder if it is
something with our string to UUID conversion.
When performing the above sequence in bluetoothctl with 'bluetoothd -d'
I get the following in my log:
daemon.debug bluetoothd[22991]: src/agent.c:agent_ref() 0xb03e60: ref=1
daemon.debug bluetoothd[22991]: src/agent.c:register_agent() agent :1.29
daemon.debug bluetoothd[22991]: src/adapter.c:property_set_mode()
sending Set Powered command for index 0
daemon.debug bluetoothd[22991]:
src/adapter.c:property_set_mode_complete() Success (0x00)
daemon.debug bluetoothd[22991]: src/adapter.c:new_settings_callback()
Settings: 0x00000ad1
daemon.debug bluetoothd[22991]: src/adapter.c:settings_changed() Changed
settings: 0x00000001
daemon.debug bluetoothd[22991]: src/adapter.c:adapter_start() adapter
/org/bluez/hci0 has been enabled
daemon.debug bluetoothd[22991]: src/adapter.c:trigger_passive_scanning()
daemon.debug bluetoothd[22991]: src/adapter.c:set_discovery_filter()
sender :1.29
daemon.debug bluetoothd[22991]:
src/adapter.c:parse_discovery_filter_dict() filtered discovery params:
transport: 7 rssi: 32767 pathloss: 32767 duplicate data: false
daemon.debug bluetoothd[22991]: src/adapter.c:set_discovery_filter()
successfully pre-set filter
daemon.debug bluetoothd[22991]: src/adapter.c:start_discovery() sender :1.29
daemon.debug bluetoothd[22991]: src/adapter.c:update_discovery_filter()
daemon.debug bluetoothd[22991]: src/adapter.c:discovery_filter_to_mgmt_cp()
daemon.debug bluetoothd[22991]: src/adapter.c:trigger_start_discovery()
daemon.debug bluetoothd[22991]: src/adapter.c:cancel_passive_scanning()
daemon.debug bluetoothd[22991]: src/adapter.c:start_discovery_timeout()
daemon.debug bluetoothd[22991]: src/adapter.c:start_discovery_timeout()
adapter->current_discovery_filter == 1
daemon.debug bluetoothd[22991]: src/adapter.c:start_discovery_timeout()
sending MGMT_OP_START_SERVICE_DISCOVERY 127, 7, 1
daemon.debug bluetoothd[22991]: src/adapter.c:start_discovery_complete()
status 0x0d
kern.err kernel: [709588.482104] Bluetooth: service_discovery: expected
4100 bytes, got 20 bytes
daemon.debug bluetoothd[22991]: src/agent.c:agent_disconnect() Agent
:1.29 disconnected
daemon.debug bluetoothd[22991]: src/agent.c:agent_destroy() agent :1.29
daemon.debug bluetoothd[22991]: src/agent.c:agent_unref() 0xb03e60: ref=0
