Hi Szymon, On Thu, Jul 19, 2012, Szymon Janc wrote: > Some devices e.g. some Android based phones don't do SDP search before > pairing and cancel legacy pairing when ACL is disconnected. > > PIN Code Request event which changes ACL timeout to HCI_PAIRING_TIMEOUT > is only received after remote user entered PIN. > > In that case no L2CAP is connected so default HCI_DISCONN_TIMEOUT > (2 seconds) is being used to timeout ACL connection. This results in > problems with legacy pairing as remote user has only few seconds to > enter PIN before ACL is disconnected. > > Increase disconnect timeout for incomming connection to > HCI_PAIRING_TIMEOUT if SSP is disabled and no linkey exists. > > To avoid keeping ACL alive for too long after SDP search set ACL > timeout back to HCI_DISCONN_TIMEOUT when L2CAP is connected. > > 2012-07-19 13:24:43.413521 < HCI Command: Create Connection (0x01|0x0005) plen 13 > bdaddr 00:02:72:D6:6A:3F ptype 0xcc18 rswitch 0x01 clkoffset 0x0000 > Packet type: DM1 DM3 DM5 DH1 DH3 DH5 > 2012-07-19 13:24:43.425224 > HCI Event: Command Status (0x0f) plen 4 > Create Connection (0x01|0x0005) status 0x00 ncmd 1 > 2012-07-19 13:24:43.885222 > HCI Event: Role Change (0x12) plen 8 > status 0x00 bdaddr 00:02:72:D6:6A:3F role 0x01 > Role: Slave > 2012-07-19 13:24:44.054221 > HCI Event: Connect Complete (0x03) plen 11 > status 0x00 handle 42 bdaddr 00:02:72:D6:6A:3F type ACL encrypt 0x00 > 2012-07-19 13:24:44.054313 < HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2 > handle 42 > 2012-07-19 13:24:44.055176 > HCI Event: Page Scan Repetition Mode Change (0x20) plen 7 > bdaddr 00:02:72:D6:6A:3F mode 0 > 2012-07-19 13:24:44.056217 > HCI Event: Max Slots Change (0x1b) plen 3 > handle 42 slots 5 > 2012-07-19 13:24:44.059218 > HCI Event: Command Status (0x0f) plen 4 > Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 0 > 2012-07-19 13:24:44.062192 > HCI Event: Command Status (0x0f) plen 4 > Unknown (0x00|0x0000) status 0x00 ncmd 1 > 2012-07-19 13:24:44.067219 > HCI Event: Read Remote Supported Features (0x0b) plen 11 > status 0x00 handle 42 > Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87 > 2012-07-19 13:24:44.067248 < HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3 > handle 42 page 1 > 2012-07-19 13:24:44.071217 > HCI Event: Command Status (0x0f) plen 4 > Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1 > 2012-07-19 13:24:44.076218 > HCI Event: Read Remote Extended Features (0x23) plen 13 > status 0x00 handle 42 page 1 max 1 > Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00 > 2012-07-19 13:24:44.076249 < HCI Command: Remote Name Request (0x01|0x0019) plen 10 > bdaddr 00:02:72:D6:6A:3F mode 2 clkoffset 0x0000 > 2012-07-19 13:24:44.081218 > HCI Event: Command Status (0x0f) plen 4 > Remote Name Request (0x01|0x0019) status 0x00 ncmd 1 > 2012-07-19 13:24:44.105214 > HCI Event: Remote Name Req Complete (0x07) plen 255 > status 0x00 bdaddr 00:02:72:D6:6A:3F name 'uw000951-0' > 2012-07-19 13:24:44.105284 < HCI Command: Authentication Requested (0x01|0x0011) plen 2 > handle 42 > 2012-07-19 13:24:44.111207 > HCI Event: Command Status (0x0f) plen 4 > Authentication Requested (0x01|0x0011) status 0x00 ncmd 1 > 2012-07-19 13:24:44.112220 > HCI Event: Link Key Request (0x17) plen 6 > bdaddr 00:02:72:D6:6A:3F > 2012-07-19 13:24:44.112249 < HCI Command: Link Key Request Negative Reply (0x01|0x000c) plen 6 > bdaddr 00:02:72:D6:6A:3F > 2012-07-19 13:24:44.115215 > HCI Event: Command Complete (0x0e) plen 10 > Link Key Request Negative Reply (0x01|0x000c) ncmd 1 > status 0x00 bdaddr 00:02:72:D6:6A:3F > 2012-07-19 13:24:44.116215 > HCI Event: PIN Code Request (0x16) plen 6 > bdaddr 00:02:72:D6:6A:3F > 2012-07-19 13:24:48.099184 > HCI Event: Auth Complete (0x06) plen 3 > status 0x13 handle 42 > Error: Remote User Terminated Connection > 2012-07-19 13:24:48.179182 > HCI Event: Disconn Complete (0x05) plen 4 > status 0x00 handle 42 reason 0x13 > Reason: Remote User Terminated Connection > > Cc: stable@xxxxxxxxxx > Signed-off-by: Szymon Janc <szymon.janc@xxxxxxxxx> > --- > net/bluetooth/hci_event.c | 7 ++++++- > net/bluetooth/l2cap_core.c | 1 + > 2 files changed, 7 insertions(+), 1 deletion(-) Acked-by: Johan Hedberg <johan.hedberg@xxxxxxxxx> Johan -- 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
