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Bluetooth: controller: Reject CIS_TERMINATE when unsupported for role

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If a central or peripheral is not configured for ISO connected streams,
reject a remote LL_CIS_TERMINATE_IND procedure, responding with an
unsupported feature error (BT_HCI_ERR_UNSUPP_FEATURE).

This fixes EBQ test /LL/PAC/CEN/BV-01-C.

Signed-off-by: Morten Priess <mtpr@oticon.com>
This commit is contained in:
Morten Priess 2022-11-07 10:40:01 +01:00 • committed by Carles Cufí
commit ee2a43b5dc
1 changed files with 18 additions and 2 deletions
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20
subsys/bluetooth/controller/ll_sw/ull_llcp_common.c
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@ -1118,6 +1118,15 @@ static void rp_comm_tx(struct ll_conn *conn, struct proc_ctx *ctx)
ctx->rx_opcode = PDU_DATA_LLCTRL_TYPE_UNUSED;
break;
#endif /* CONFIG_BT_CTLR_SCA_UPDATE */
#if !defined(CONFIG_BT_CTLR_CENTRAL_ISO) || !defined(CONFIG_BT_CTLR_PERIPHERAL_ISO)
case PROC_CIS_TERMINATE:
/* Only possible response to LL_CIS_TERMINATE is if a central or peripheral
* does not have ISO support. Then reject with error 'unsupported feature'.
*/
llcp_pdu_encode_reject_ext_ind(pdu, PDU_DATA_LLCTRL_TYPE_CIS_TERMINATE_IND,
BT_HCI_ERR_UNSUPP_FEATURE_PARAM_VAL);
break;
#endif /* !CONFIG_BT_CTLR_CENTRAL_ISO || !CONFIG_BT_CTLR_PERIPHERAL_ISO */
default:
/* Unknown procedure */
LL_ASSERT(0);
@ -1275,10 +1284,17 @@ static void rp_comm_send_rsp(struct ll_conn *conn, struct proc_ctx *ctx, uint8_t
break;
#if defined(CONFIG_BT_CTLR_CENTRAL_ISO) || defined(CONFIG_BT_CTLR_PERIPHERAL_ISO)
case PROC_CIS_TERMINATE:
/* No response */
/* Make sure role is configured for ISO, otherwise reject */
if ((!IS_ENABLED(CONFIG_BT_CTLR_CENTRAL_ISO) &&
conn->lll.role == BT_HCI_ROLE_CENTRAL) ||
(!IS_ENABLED(CONFIG_BT_CTLR_PERIPHERAL_ISO) &&
conn->lll.role == BT_HCI_ROLE_PERIPHERAL)) {
rp_comm_tx(conn, ctx);
/* Fall through */
}
llcp_rr_complete(conn);
ctx->state = RP_COMMON_STATE_IDLE;
break;
#endif /* CONFIG_BT_CTLR_CENTRAL_ISO || CONFIG_BT_CTLR_PERIPHERAL_ISO */
#if defined(CONFIG_BT_CTLR_DATA_LENGTH)