Hi,
Thanks for all the input so far. I found out that the disconnection is
coming from Bluetooth SMP in Kernel. After host transmits
SMP_CMD_PAIRING_RANDOM,
the HID device sends:
SMP_CMD_ENCRYPT_INFO
SMP_CMD_MASTER_IDENT
SMP_CMD_IDENT_ADDR_INFO
SMP_CMD_IDENT_INFO
messages which get filtered out in smp_sig_channel as they don't seem
to be allowed. This resulted in smp->security_timer firing and
disconnection.
I made the following change to smp to allow these commands in SMP. I
am not sure if this the best way to fix it. Looking for input.
With this change, the mouse device pairs successfully (see
bluetoothctl logs below)
However, I see the following
"Unable to register GATT service with handle 0x0008 for device
F5:95:EC:6F:0F:D3"
in /var/log/syslog from bluetoothd. I am not sure if this is concerning.
I understand I am trying to mix and match older Kernel stack with
newer Bluez. But the tree for my ARM64 board has divereged from
mainline.
Hence upgrading the kernel is not easy. (3.18.20 based Kernel and 5.41 Bluez).
Thanks in advance. Logs below.
****************** Begin Kernel Change *****************************************
@@ -1515,6 +1515,10 @@ static int smp_sig_channel(struct l2cap_chan
*chan, struct sk_buff *skb)
case SMP_CMD_PAIRING_RANDOM:
reason = smp_cmd_pairing_random(conn, skb);
+ SMP_ALLOW_CMD(smp, SMP_CMD_ENCRYPT_INFO);
+ SMP_ALLOW_CMD(smp, SMP_CMD_MASTER_IDENT);
+ SMP_ALLOW_CMD(smp, SMP_CMD_IDENT_ADDR_INFO);
+ SMP_ALLOW_CMD(smp, SMP_CMD_IDENT_INFO);
break;
****************** End Kernel Change *******************************************
******************************* /var/log/syslog begin **************************
Jan 6 18:26:58 Deb-Jessie kernel: [ 118.599398] Bluetooth: Frame
Reassembly Failed
Jan 6 18:26:58 Deb-Jessie bluetoothd[629]: Unable to register GATT
service with handle 0x0008 for device F5:95:EC:6F:0F:D3
Jan 6 18:27:00 Deb-Jessie kernel: [ 121.224593] Bluetooth: Frame
Reassembly Failed
Jan 6 18:27:01 Deb-Jessie kernel: [ 121.692871] Bluetooth: Frame
Reassembly Failed
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie bluetoothd[629]: bt_uhid_send: Invalid argument (22)
Jan 6 18:27:01 Deb-Jessie kernel: [ 122.146168] input: Designer
Mouse as /devices/virtual/misc/uhid/0005:0000:0000.0003/input/input8
Jan 6 18:27:01 Deb-Jessie kernel: [ 122.146868] hid-generic
0005:0000:0000.0003: input,hidraw2: BLUETOOTH HID v0.00 Mouse
[Designer Mouse] on 44:1C:A8:6C:8F:5E
******************************* /var/log/syslog end ****************************
******************************* bluetoothctl logs ****************************
root@Deb-Jessie:~# bluetoothctl
[NEW] Controller 44:1C:A8:6C:8F:5E Deb-Jessie [default]
[bluetooth]# select 44:1C:A8:6C:8F:5E
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# discoverable on
Changing discoverable on succeeded
[bluetooth]# pairable on
Changing pairable on succeeded
[bluetooth]# agent on
Agent registered
[bluetooth]# default-agent
Default agent request successful
[bluetooth]# scan on
Discovery started
[CHG] Controller 44:1C:A8:6C:8F:5E Discovering: yes
[NEW] Device F5:95:EC:6F:0F:D3 Designer Mouse
[bluetooth]# pair F5:95:EC:6F:0F:D3
Attempting to pair with F5:95:EC:6F:0F:D3
[CHG] Device F5:95:EC:6F:0F:D3 Connected: yes
[CHG] Device F5:95:EC:6F:0F:D3 UUIDs: 00001800-0000-1000-8000-00805f9b34fb
[CHG] Device F5:95:EC:6F:0F:D3 UUIDs: 00001801-0000-1000-8000-00805f9b34fb
[CHG] Device F5:95:EC:6F:0F:D3 UUIDs: 0000180a-0000-1000-8000-00805f9b34fb
[CHG] Device F5:95:EC:6F:0F:D3 UUIDs: 0000180f-0000-1000-8000-00805f9b34fb
[CHG] Device F5:95:EC:6F:0F:D3 UUIDs: 00001812-0000-1000-8000-00805f9b34fb
[CHG] Device F5:95:EC:6F:0F:D3 ServicesResolved: yes
[CHG] Device F5:95:EC:6F:0F:D3 Paired: yes
[NEW] Primary Service
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service0008
Generic Attribute Profile
[NEW] Primary Service
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service0009
Device Information
[NEW] Characteristic
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service0009/char000a
Manufacturer Name String
[NEW] Characteristic
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service0009/char000c
PnP ID
[NEW] Primary Service
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service000e
Battery Service
[NEW] Characteristic
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service000e/char000f
Battery Level
[NEW] Descriptor
/org/bluez/hci0/dev_F5_95_EC_6F_0F_D3/service000e/char000f/desc0011
Client Characteristic Configuration
Pairing successful
[CHG] Device F5:95:EC:6F:0F:D3 Modalias: usb:v045Ep0805d0110
[Designer Mouse]# info F5:95:EC:6F:0F:D3
Device F5:95:EC:6F:0F:D3
Name: Designer Mouse
Alias: Designer Mouse
Appearance: 0x03c2
Icon: input-mouse
Paired: yes
Trusted: no
Blocked: no
Connected: yes
LegacyPairing: no
UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
UUID: Device Information (0000180a-0000-1000-8000-00805f9b34fb)
UUID: Battery Service (0000180f-0000-1000-8000-00805f9b34fb)
UUID: Human Interface Device (00001812-0000-1000-8000-00805f9b34fb)
Modalias: usb:v045Ep0805d0110
RSSI: -46
**************************** bluetoothctl end **********************************
Thanks,
Naveen
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
