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authorAndrei Emeltchenko2010-07-08 12:14:41 +0300
committerMarcel Holtmann2010-07-08 20:35:23 -0300
commite501d0553a7580fcc6654d7f58a5f061d31d00af (patch)
tree8f1489e92272e18cc5c222283bcbeccfe7bcecd2 /net/lapb
parent33b665eeeb85956ccbdf31c4c31a4e2a31133c44 (diff)
Bluetooth: Check L2CAP pending status before sending connect request
Due to race condition in L2CAP state machine L2CAP Connection Request may be sent twice for SDP with the same source channel id. Problems reported connecting to Apple products, some carkit, Blackberry phones. ... 2010-06-07 21:18:03.651031 < ACL data: handle 1 flags 0x02 dlen 12 L2CAP(s): Connect req: psm 1 scid 0x0040 2010-06-07 21:18:03.653473 > HCI Event: Number of Completed Packets (0x13) plen 5 handle 1 packets 1 2010-06-07 21:18:03.653808 > HCI Event: Auth Complete (0x06) plen 3 status 0x00 handle 1 2010-06-07 21:18:03.653869 < ACL data: handle 1 flags 0x02 dlen 12 L2CAP(s): Connect req: psm 1 scid 0x0040 ... Patch uses L2CAP_CONF_CONNECT_PEND flag to mark that L2CAP Connection Request has been sent already. Modified version of patch from Ville Tervo. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/lapb')
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