android: Add support for handling new link key mgmt event

When link key is emitted by kernel bond state change notification is
send to HAL. Storing link key is not yet implemented.

diff --git a/android/adapter.c b/android/adapter.c
index 15b65e5..4b4905b 100644 (file)
--- a/android/adapter.c
+++ b/android/adapter.c
@@ -195,6 +195,60 @@ static void mgmt_dev_class_changed_event(uint16_t index, uint16_t length,
        /* TODO: Gatt attrib set*/
 }
 
+static void store_link_key(const bdaddr_t *dst, const uint8_t *key,
+                                       uint8_t type, uint8_t pin_length)
+{
+       /* TODO store link key */
+
+}
+
+static void send_bond_state_change(const bdaddr_t *addr, uint8_t status,
+                                                               uint8_t state)
+{
+       struct hal_ev_bond_state_changed ev;
+
+       ev.status = status;
+       ev.state = state;
+       bdaddr2android(addr, ev.bdaddr);
+
+       ipc_send(notification_io, HAL_SERVICE_ID_BLUETOOTH,
+                       HAL_EV_BOND_STATE_CHANGED, sizeof(ev), &ev, -1);
+}
+
+static void new_link_key_callback(uint16_t index, uint16_t length,
+                                       const void *param, void *user_data)
+{
+       const struct mgmt_ev_new_link_key *ev = param;
+       const struct mgmt_addr_info *addr = &ev->key.addr;
+       char dst[18];
+
+       if (length < sizeof(*ev)) {
+               error("Too small new link key event");
+               return;
+       }
+
+       ba2str(&addr->bdaddr, dst);
+
+       DBG("new key for %s type %u pin_len %u",
+                                       dst, ev->key.type, ev->key.pin_len);
+
+       if (ev->key.pin_len > 16) {
+               error("Invalid PIN length (%u) in new_key event",
+                                                       ev->key.pin_len);
+               return;
+       }
+
+       if (ev->store_hint) {
+               const struct mgmt_link_key_info *key = &ev->key;
+
+               store_link_key(&addr->bdaddr, key->val, key->type,
+                                                               key->pin_len);
+       }
+
+       send_bond_state_change(&addr->bdaddr, HAL_STATUS_SUCCESS,
+                                                       HAL_BOND_STATE_BONDED);
+}
+
 static void register_mgmt_handlers(void)
 {
        mgmt_register(adapter->mgmt, MGMT_EV_NEW_SETTINGS, adapter->index,
@@ -207,6 +261,9 @@ static void register_mgmt_handlers(void)
        mgmt_register(adapter->mgmt, MGMT_EV_LOCAL_NAME_CHANGED,
                                adapter->index, mgmt_local_name_changed_event,
                                NULL, NULL);
+
+       mgmt_register(adapter->mgmt, MGMT_EV_NEW_LINK_KEY, adapter->index,
+                                       new_link_key_callback, NULL, NULL);
 }
 
 static void load_link_keys_complete(uint8_t status, uint16_t length,