Bluetooth: L2CAP: Fix result of L2CAP_ECRED_CONN_RSP when MTU is too short

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Test L2CAP/ECFC/BV-26-C expect the response to L2CAP_ECRED_CONN_REQ with
and MTU value < L2CAP_ECRED_MIN_MTU (64) to be L2CAP_CR_LE_INVALID_PARAMS
rather than L2CAP_CR_LE_UNACCEPT_PARAMS.

Also fix not including the correct number of CIDs in the response since
the spec requires all CIDs being rejected to be included in the
response.

Link: https://github.com/bluez/bluez/issues/1868
Fixes: 15f02b9105 ("Bluetooth: L2CAP: Add initial code for Enhanced Credit Based Mode")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

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Luiz Augusto von Dentz 2026-02-05 15:11:34 -05:00

parent 7accb1c432

commit c28d2bff70

2 changed files with 11 additions and 9 deletions

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6

include/net/bluetooth/l2cap.h

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14

net/bluetooth/l2cap_core.c

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