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Bluetooth: controller: Fix missing CIS disconnect on MIC failure

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Disconnect CIS immediately if event done extra status indicates MIC
failure. Return reason BT_HCI_ERR_TERM_DUE_TO_MIC_FAIL.

Fixes EBQ test /LL/CIS/PER/BV-27-C.

Signed-off-by: Morten Priess <mtpr@oticon.com>
This commit is contained in:
Morten Priess 2022-09-29 15:42:31 +02:00 • committed by Fabio Baltieri
commit 90d0d93a9c
1 changed files with 4 additions and 1 deletions
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5
subsys/bluetooth/controller/ll_sw/ull_conn_iso.c
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@ -314,7 +314,10 @@ void ull_conn_iso_done(struct node_rx_event_done *done)
if (cis->lll.handle != LLL_HANDLE_INVALID) {
/* CIS was setup and is now expected to be going */
if (!(done->extra.trx_performed_mask &
if (done->extra.mic_state == LLL_CONN_MIC_FAIL) {
/* MIC failure - stop CIS and defer cleanup to after teardown. */
ull_conn_iso_cis_stop(cis, NULL, BT_HCI_ERR_TERM_DUE_TO_MIC_FAIL);
} else if (!(done->extra.trx_performed_mask &
(1U << LL_CIS_IDX_FROM_HANDLE(cis->lll.handle)))) {
/* We did NOT have successful transaction on established CIS,
* or CIS was not yet established, so handle timeout