Hi Jaganath, * Jaganath Kanakkassery <jaganath.k@xxxxxxxxxxx> [2013-01-10 10:28:35 +0530]: > If remote device sends l2cap info request before read_remote_ext_feature > completes then mgmt_connected will be sent in hci_acldata_packet() and > remote name request wont be sent and eventually authentication wont happen > > Hcidump log of the issue > > < HCI Command: Create Connection (0x01|0x0005) plen 13 > bdaddr BC:85:1F:74:7F:29 ptype 0xcc18 rswitch 0x01 clkoffset 0x4bf7 (valid) > Packet type: DM1 DM3 DM5 DH1 DH3 DH5 > > HCI Event: Command Status (0x0f) plen 4 > Create Connection (0x01|0x0005) status 0x00 ncmd 1 > > HCI Event: Connect Complete (0x03) plen 11 > status 0x00 handle 12 bdaddr BC:85:1F:74:7F:29 type ACL encrypt 0x00 > < HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2 > handle 12 > > HCI Event: Command Status (0x0f) plen 4 > Read Remote Supported Features (0x01|0x001b) status 0x00 ncmd 1 > > HCI Event: Read Remote Supported Features (0x0b) plen 11 > status 0x00 handle 12 > Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87 > > HCI Event: Max Slots Change (0x1b) plen 3 > handle 12 slots 5 > < HCI Command: Read Remote Extended Features (0x01|0x001c) plen 3 > handle 12 page 1 > > HCI Event: Command Status (0x0f) plen 4 > Read Remote Extended Features (0x01|0x001c) status 0x00 ncmd 1 > > ACL data: handle 12 flags 0x02 dlen 10 > L2CAP(s): Info req: type 2 > < ACL data: handle 12 flags 0x00 dlen 16 > L2CAP(s): Info rsp: type 2 result 0 > Extended feature mask 0x00b8 > Enhanced Retransmission mode > Streaming mode > FCS Option > Fixed Channels > > HCI Event: Read Remote Extended Features (0x23) plen 13 > status 0x00 handle 12 page 1 max 1 > Features: 0x01 0x00 0x00 0x00 0x00 0x00 0x00 0x00 > > ACL data: handle 12 flags 0x02 dlen 10 > L2CAP(s): Info req: type 3 > < ACL data: handle 12 flags 0x00 dlen 20 > L2CAP(s): Info rsp: type 3 result 0 > Fixed channel list 0x00000002 > L2CAP Signalling Channel > > HCI Event: Number of Completed Packets (0x13) plen 5 > handle 12 packets 2 > > This patch moves sending mgmt_connected from hci_acldata_packet() to > l2cap_connect_req() since this code is to handle the scenario remote > device sends l2cap connect req too fast > > Signed-off-by: Jaganath Kanakkassery <jaganath.k@xxxxxxxxxxx> > --- > v1 ---> Incorporated Johan's comments - Instead of fixing in hci_acldata_packet(), > move sending mgmt_connected to l2cap_connect_req since this code is mainly to > handle the scenario if remote device sends l2cap connection too fast > > net/bluetooth/hci_core.c | 8 -------- > net/bluetooth/l2cap_core.c | 11 +++++++++++ > 2 files changed, 11 insertions(+), 8 deletions(-) Patch has been applied to bluetooth.git. Thanks. Gustavo -- 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
