Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: bluez (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1653506
Title:
Not possible to connect to Ubuntu from remote device
Status in bluez package in Ubuntu:
Confirmed
Bug description:
The Ubuntu is not letting the remote device in in case when the remote
device is the initiator of the connection request. It drops connection
request on the L2CAP level with 'security block' error code.
The step-by-step example:
1. Ubuntu pairs & connects to remote device
2. Ubuntu disconnects
3. Remote device tries to reconnect
It is seen from the HCI trace that the root cause is the problem in
finding the agent that could carry the auth process on. In this case
however the agent has been registered previously.
The HCI trace:
> ACL Data RX: Handle 12 flags 0x02 dlen 12
[hci0] 941.214394
L2CAP: Connection Request (0x02) ident 38 len 4
PSM: 25 (0x0019)
Source CID: 65
< ACL Data TX: Handle 12 flags 0x00 dlen 16
[hci0] 941.214473
L2CAP: Connection Response (0x03) ident 38 len 8
Destination CID: 64
Source CID: 65
Result: Connection pending (0x0001)
Status: Authorization pending (0x0002)
= bluetoothd: Authentication attempt without agent
[hci0] 941.214871
= bluetoothd: Access denied: org.bluez.Error.Rejected
941.214921
< ACL Data TX: Handle 12 flags 0x00 dlen 16
[hci0] 941.214916
L2CAP: Connection Response (0x03) ident 38 len 8
Destination CID: 64
Source CID: 65
Result: Connection refused - security block (0x0003)
Status: No further information available (0x0000)
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