Bluetooth: SSP: Support non-bondable mode

lylezhu2012 · aescolar · commit e772c45e6b7c · 2024-10-02T15:54:30.000+02:00
If the return value of function bt_get_bondable is false, clear the
bonding flag when controller requiring `Authentication_Requirements`.

Signed-off-by: Lyle Zhu &lt;lyle.zhu@nxp.com&gt;
diff --git a/subsys/bluetooth/host/classic/ssp.c b/subsys/bluetooth/host/classic/ssp.c
@@ -642,6 +642,9 @@ void bt_hci_io_capa_resp(struct net_buf *buf)
 	bt_conn_unref(conn);
 }
 
+/* Clear Bonding flag */
+#define BT_HCI_SET_NO_BONDING(auth) ((auth) & 0x01)
+
 void bt_hci_io_capa_req(struct net_buf *buf)
 {
 	struct bt_hci_evt_io_capa_req *evt = (void *)buf->data;
@@ -690,6 +693,11 @@ void bt_hci_io_capa_req(struct net_buf *buf)
 		auth = ssp_get_auth(conn);
 	}
 
+	if (!bt_get_bondable()) {
+		/* If bondable is false, clear bonding flag. */
+		auth = BT_HCI_SET_NO_BONDING(auth);
+	}
+
 	cp = net_buf_add(resp_buf, sizeof(*cp));
 	bt_addr_copy(&cp->bdaddr, &evt->bdaddr);
 	cp->capability = get_io_capa();

Original file line number	Diff line number	Diff line change
`@@ -642,6 +642,9 @@ void bt_hci_io_capa_resp(struct net_buf *buf)`
`642`	`642`	`bt_conn_unref(conn);`
`643`	`643`	`}`
`644`	`644`
	`645`	`+/* Clear Bonding flag */`
	`646`	`+#define BT_HCI_SET_NO_BONDING(auth) ((auth) & 0x01)`
	`647`	`+`
`645`	`648`	`void bt_hci_io_capa_req(struct net_buf *buf)`
`646`	`649`	`{`
`647`	`650`	`struct bt_hci_evt_io_capa_req evt = (void )buf->data;`
`@@ -690,6 +693,11 @@ void bt_hci_io_capa_req(struct net_buf *buf)`
`690`	`693`	`auth = ssp_get_auth(conn);`
`691`	`694`	`}`
`692`	`695`
	`696`	`+ if (!bt_get_bondable()) {`
	`697`	`+ /* If bondable is false, clear bonding flag. */`
	`698`	`+ auth = BT_HCI_SET_NO_BONDING(auth);`
	`699`	`+ }`
	`700`	`+`
`693`	`701`	`cp = net_buf_add(resp_buf, sizeof(*cp));`
`694`	`702`	`bt_addr_copy(&cp->bdaddr, &evt->bdaddr);`
`695`	`703`	`cp->capability = get_io_capa();`