static DBusMessage *create_gatt_dbus_error(DBusMessage *msg, uint8_t att_ecode)
{
switch (att_ecode) {
case BT_ATT_ERROR_READ_NOT_PERMITTED:
return btd_error_not_permitted(msg, "Read not permitted");
case BT_ATT_ERROR_WRITE_NOT_PERMITTED:
return btd_error_not_permitted(msg, "Write not permitted");
case BT_ATT_ERROR_AUTHENTICATION:
case BT_ATT_ERROR_INSUFFICIENT_ENCRYPTION:
case BT_ATT_ERROR_INSUFFICIENT_ENCRYPTION_KEY_SIZE:
return btd_error_not_permitted(msg, "Not paired");
case BT_ATT_ERROR_INVALID_OFFSET:
return btd_error_invalid_args_str(msg, "Invalid offset");
case BT_ATT_ERROR_INVALID_ATTRIBUTE_VALUE_LEN:
return btd_error_invalid_args_str(msg, "Invalid Length");
case BT_ATT_ERROR_AUTHORIZATION:
return btd_error_not_authorized(msg);
case BT_ATT_ERROR_REQUEST_NOT_SUPPORTED:
return btd_error_not_supported(msg);
case 0:
return btd_error_failed(msg, "Operation failed");
default:
return g_dbus_create_error(msg, ERROR_INTERFACE,
"Operation failed with ATT error: 0x%02x",
att_ecode);
}
return NULL;
}
static DBusMessage *descriptor_write_value(DBusConnection *conn,
DBusMessage *msg, void *user_data)
{
struct descriptor *desc = user_data;
struct bt_gatt_client *gatt = desc->chrc->service->client->gatt;
uint8_t *value = NULL;
size_t value_len = 0;
if (!gatt)
return btd_error_failed(msg, "Not connected");
if (desc->write_id)
return btd_error_in_progress(msg);
if (!parse_value_arg(msg, &value, &value_len))
return btd_error_invalid_args(msg);
/*
* Don't allow writing to Client Characteristic Configuration
* descriptors. We achieve this through the StartNotify and StopNotify
* methods on GattCharacteristic1.
*/
if (uuid_cmp(&desc->uuid, GATT_CLIENT_CHARAC_CFG_UUID))
return btd_error_not_permitted(msg, "Write not permitted");
/*
* Based on the value length and the MTU, either use a write or a long
* write.
*/
if (value_len <= (unsigned) bt_gatt_client_get_mtu(gatt) - 3)
desc->write_id = start_write_request(msg, desc->handle,
gatt, value,
value_len, desc,
desc_write_complete);
else
desc->write_id = start_long_write(msg, desc->handle,
gatt, false, value,
value_len, desc,
desc_write_complete);
if (!desc->write_id)
return btd_error_failed(msg, "Failed to initiate write");
return NULL;
}
