Bluetooth: Enforce validation on max value of connection interval

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[ Upstream commit e4b019515f ]

Right now Linux BT stack cannot pass test case "GAP/CONN/CPUP/BV-05-C
'Connection Parameter Update Procedure Invalid Parameters Central
Responder'" in Bluetooth Test Suite revision GAP.TS.p44. [0]

That was revoled by commit c49a8682fc ("Bluetooth: validate BLE
connection interval updates"), but later got reverted due to devices
like keyboards and mice may require low connection interval.

So only validate the max value connection interval to pass the Test
Suite, and let devices to request low connection interval if needed.

[0] https://www.bluetooth.org/docman/handlers/DownloadDoc.ashx?doc_id=229869

Fixes: 68d19d7d99 ("Revert "Bluetooth: validate BLE connection interval updates"")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Kai-Heng Feng 2024-01-25 14:50:28 +08:00 • committed by Greg Kroah-Hartman

parent 30a5e812f7

commit 2dc94c160e

2 changed files with 11 additions and 1 deletions

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4

net/bluetooth/hci_event.c

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8

net/bluetooth/l2cap_core.c

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