Apparently this is a regression caused by commit
769be974d0c7b4fe1a52f9cdaad22259b60953f7 - [Bluetooth] Use ACL config
stage to retrieve remote features, when receiving pincode request in a
new connection the state will be BT_CONFIG so HCI_PAIRING_TIMEOUT is
never set to the connection, this could be reproduced by removing a
link key in the remote side and trying to connect:
2011-04-05 12:11:37.070953 < HCI Command: Authentication Requested
(0x01|0x0011) plen 2
handle 1
2011-04-05 12:11:37.071686 > HCI Event: Command Status (0x0f) plen 4
Authentication Requested (0x01|0x0011) status 0x00 ncmd 1
2011-04-05 12:11:37.071838 > HCI Event: Link Key Request (0x17) plen 6
bdaddr 00:1F:E1:EB:B9:CB
2011-04-05 12:11:37.075073 < HCI Command: Link Key Request Reply
(0x01|0x000b) plen 22
bdaddr 00:1F:E1:EB:B9:CB key 92BA9EAD06542B0600457C609B8F5395
2011-04-05 12:11:37.075775 > HCI Event: Command Complete (0x0e) plen 10
Link Key Request Reply (0x01|0x000b) ncmd 1
status 0x00 bdaddr 00:1F:E1:EB:B9:CB
2011-04-05 12:11:37.087005 > HCI Event: PIN Code Request (0x16) plen 6
bdaddr 00:1F:E1:EB:B9:CB
2011-04-05 12:11:39.038849 < ACL data: handle 1 flags 0x00 dlen 12
L2CAP(s): Disconn req: dcid 0x00a9 scid 0x0040
2011-04-05 12:11:39.100647 > HCI Event: Number of Completed Packets
(0x13) plen 5
handle 1 packets 1
2011-04-05 12:11:39.100830 > ACL data: handle 1 flags 0x02 dlen 12
L2CAP(s): Disconn rsp: dcid 0x00a9 scid 0x0040
2011-04-05 12:11:40.433624 > HCI Event: Auth Complete (0x06) plen 3
status 0x13 handle 1
Error: Remote User Terminated Connection
2011-04-05 12:11:40.437774 > HCI Event: Disconn Complete (0x05) plen 4
status 0x00 handle 1 reason 0x13
Reason: Remote User Terminated Connection
I think the following patch might fix it:
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 3fbfa50..abdc4de 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1973,10 +1973,14 @@ static inline void hci_pin_code_request_evt(struct
hci_dev *hdev, struct sk_buff
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
- if (conn && conn->state == BT_CONNECTED) {
- hci_conn_hold(conn);
+ if (conn) {
conn->disc_timeout = HCI_PAIRING_TIMEOUT;
- hci_conn_put(conn);
+
+ /* Update disconnect timer */
+ if (conn->state == BT_CONNECTED) {
+ hci_conn_hold(conn);
+ hci_conn_put(conn);
+ }
}
Comments?
--
Luiz Augusto von Dentz
Computer Engineer
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