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fp-device: Add fp_device_clear_storage and clear_storage vfunc

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This commit is contained in:
Vincent Huang 2021-04-09 17:23:13 +08:00 committed by Benjamin Berg
parent b9df7a4e70
commit 77e95aa545
9 changed files with 248 additions and 23 deletions
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3
doc/libfprint-2-sections.txt
View file

@ -49,6 +49,7 @@ fp_device_identify
fp_device_capture
fp_device_delete_print
fp_device_list_prints
fp_device_clear_storage
fp_device_open_finish
fp_device_close_finish
fp_device_enroll_finish
@ -57,6 +58,7 @@ fp_device_identify_finish
fp_device_capture_finish
fp_device_delete_print_finish
fp_device_list_prints_finish
fp_device_clear_storage_finish
fp_device_open_sync
fp_device_close_sync
fp_device_enroll_sync
@ -65,6 +67,7 @@ fp_device_identify_sync
fp_device_capture_sync
fp_device_delete_print_sync
fp_device_list_prints_sync
fp_device_clear_storage_sync
FpDevice
</SECTION>

21
libfprint/drivers/virtual-device-storage.c
View file

@ -160,6 +160,26 @@ dev_list (FpDevice *dev)
fpi_device_list_complete (dev, get_stored_prints (vdev), NULL);
}
static void
dev_clear_storage (FpDevice *dev)
{
g_autoptr(GPtrArray) prints_list = NULL;
g_autoptr(GError) error = NULL;
FpDeviceVirtualDevice *vdev = FP_DEVICE_VIRTUAL_DEVICE (dev);
process_cmds (vdev, FALSE, &error);
if (should_wait_for_command (vdev, error))
return;
if (error && !g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
{
fpi_device_clear_storage_complete (dev, g_steal_pointer (&error));
return;
}
fpi_device_clear_storage_complete (dev, NULL);
}
static void
dev_delete (FpDevice *dev)
{
@ -244,6 +264,7 @@ fpi_device_virtual_device_storage_class_init (FpDeviceVirtualDeviceStorageClass
dev_class->identify = dev_identify;
dev_class->list = dev_list;
dev_class->delete = dev_delete;
dev_class->clear_storage = dev_clear_storage;
fpi_device_class_auto_initialize_features (dev_class);
dev_class->features |= FP_DEVICE_FEATURE_DUPLICATES_CHECK;

115
libfprint/fp-device.c
View file

@ -1412,6 +1412,93 @@ fp_device_list_prints_finish (FpDevice *device,
return g_task_propagate_pointer (G_TASK (result), error);
}
/**
* fp_device_clear_storage:
* @device: a #FpDevice
* @cancellable: (nullable): a #GCancellable, or %NULL
* @callback: the function to call on completion
* @user_data: the data to pass to @callback
*
* Start an asynchronous operation to delete all prints from the device.
* The callback will be called once the operation has finished. Retrieve
* the result with fp_device_clear_storage_finish().
*
* This only makes sense on devices that store prints on-chip, but is safe
* to always call.
*/
void
fp_device_clear_storage (FpDevice *device,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_autoptr(GTask) task = NULL;
FpDevicePrivate *priv = fp_device_get_instance_private (device);
FpDeviceClass *cls = FP_DEVICE_GET_CLASS (device);
task = g_task_new (device, cancellable, callback, user_data);
if (g_task_return_error_if_cancelled (task))
return;
if (!priv->is_open)
{
g_task_return_error (task,
fpi_device_error_new (FP_DEVICE_ERROR_NOT_OPEN));
return;
}
if (priv->current_task)
{
g_task_return_error (task,
fpi_device_error_new (FP_DEVICE_ERROR_BUSY));
return;
}
if (!(cls->features & FP_DEVICE_FEATURE_STORAGE))
{
g_task_return_error (task,
fpi_device_error_new_msg (FP_DEVICE_ERROR_NOT_SUPPORTED,
"Device has no storage."));
return;
}
if (!(cls->features & FP_DEVICE_FEATURE_STORAGE_CLEAR))
{
g_task_return_error (task,
fpi_device_error_new_msg (FP_DEVICE_ERROR_NOT_SUPPORTED,
"Device doesn't support clearing storage."));
return;
}
priv->current_action = FPI_DEVICE_ACTION_CLEAR_STORAGE;
priv->current_task = g_steal_pointer (&task);
maybe_cancel_on_cancelled (device, cancellable);
cls->clear_storage (device);
return;
}
/**
* fp_device_clear_storage_finish:
* @device: A #FpDevice
* @result: A #GAsyncResult
* @error: Return location for errors, or %NULL to ignore
*
* Finish an asynchronous operation to delete all enrolled prints.
*
* See fp_device_clear_storage().
*
* Returns: (type void): %FALSE on error, %TRUE otherwise
*/
gboolean
fp_device_clear_storage_finish (FpDevice *device,
GAsyncResult *result,
GError **error)
{
return g_task_propagate_boolean (G_TASK (result), error);
}
static void
async_result_ready (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
@ -1716,3 +1803,31 @@ fp_device_has_feature (FpDevice *device,
return (fp_device_get_features (device) & feature) == feature;
}
/**
* fp_device_clear_storage_sync:
* @device: a #FpDevice
* @cancellable: (nullable): a #GCancellable, or %NULL
* @error: Return location for errors, or %NULL to ignore
*
* Clear sensor storage.
*
* Returns: (type void): %FALSE on error, %TRUE otherwise
*/
gboolean
fp_device_clear_storage_sync (FpDevice *device,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GAsyncResult) task = NULL;
g_return_val_if_fail (FP_IS_DEVICE (device), FALSE);
fp_device_clear_storage (device,
cancellable,
async_result_ready, &task);
while (!task)
g_main_context_iteration (NULL, TRUE);
return fp_device_clear_storage_finish (device, task, error);
}

13
libfprint/fp-device.h
View file

@ -261,6 +261,11 @@ void fp_device_list_prints (FpDevice *device,
GAsyncReadyCallback callback,
gpointer user_data);
void fp_device_clear_storage (FpDevice *device,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
gboolean fp_device_open_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
@ -289,7 +294,9 @@ gboolean fp_device_delete_print_finish (FpDevice *device,
GPtrArray * fp_device_list_prints_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
gboolean fp_device_clear_storage_finish (FpDevice *device,
GAsyncResult *result,
GError **error);
gboolean fp_device_open_sync (FpDevice *device,
GCancellable *cancellable,
@ -330,7 +337,9 @@ gboolean fp_device_delete_print_sync (FpDevice *device,
GPtrArray * fp_device_list_prints_sync (FpDevice *device,
GCancellable *cancellable,
GError **error);
gboolean fp_device_clear_storage_sync (FpDevice *device,
GCancellable *cancellable,
GError **error);
/* Deprecated functions */
G_DEPRECATED_FOR (fp_device_get_features)
gboolean fp_device_supports_identify (FpDevice *device);

41
libfprint/fpi-device.c
View file

@ -68,16 +68,16 @@ fpi_device_class_auto_initialize_features (FpDeviceClass *device_class)
device_class->features |= FP_DEVICE_FEATURE_IDENTIFY;
if (device_class->list)
{
device_class->features |= FP_DEVICE_FEATURE_STORAGE;
device_class->features |= FP_DEVICE_FEATURE_STORAGE_LIST;
}
if (device_class->delete)
{
device_class->features |= FP_DEVICE_FEATURE_STORAGE;
device_class->features |= FP_DEVICE_FEATURE_STORAGE_DELETE;
}
if (device_class->clear_storage)
device_class->features |= FP_DEVICE_FEATURE_STORAGE_CLEAR;
if (device_class->delete && (device_class->list || device_class->clear_storage))
device_class->features |= FP_DEVICE_FEATURE_STORAGE;
}
/**
@ -1378,6 +1378,35 @@ fpi_device_list_complete (FpDevice *device,
}
/**
* fpi_device_clear_storage_complete:
* @device: The #FpDevice
* @error: The #GError or %NULL on success
*
* Finish an ongoing clear_storage operation.
*/
void
fpi_device_clear_storage_complete (FpDevice *device,
GError *error)
{
FpDevicePrivate *priv = fp_device_get_instance_private (device);
g_return_if_fail (FP_IS_DEVICE (device));
g_return_if_fail (priv->current_action == FPI_DEVICE_ACTION_CLEAR_STORAGE);
g_debug ("Device reported deletion completion");
clear_device_cancel_action (device);
fpi_device_report_finger_status (device, FP_FINGER_STATUS_NONE);
if (!error)
fpi_device_return_task_in_idle (device, FP_DEVICE_TASK_RETURN_BOOL,
GUINT_TO_POINTER (TRUE));
else
fpi_device_return_task_in_idle (device, FP_DEVICE_TASK_RETURN_ERROR, error);
}
/**
* fpi_device_enroll_progress:
* @device: The #FpDevice
* @completed_stages: The number of stages that are completed at this point

6
libfprint/fpi-device.h
View file

@ -101,6 +101,7 @@ struct _FpIdEntry
* @capture: Start a capture operation
* @list: List prints stored on the device
* @delete: Delete a print from the device
* @clear_storage: Delete all prints from the device
* @cancel: Called on cancellation, this is a convenience to not need to handle
* the #GCancellable directly by using fpi_device_get_cancellable().
*
@ -152,6 +153,7 @@ struct _FpDeviceClass
void (*capture) (FpDevice *device);
void (*list) (FpDevice *device);
void (*delete) (FpDevice * device);
void (*clear_storage) (FpDevice * device);
void (*cancel) (FpDevice *device);
};
@ -180,6 +182,7 @@ typedef void (*FpTimeoutFunc) (FpDevice *device,
* @FPI_DEVICE_ACTION_CAPTURE: Device is currently capturing an image.
* @FPI_DEVICE_ACTION_LIST: Device stored prints are being queried.
* @FPI_DEVICE_ACTION_DELETE: Device stored print is being deleted.
* @FPI_DEVICE_ACTION_CLEAR_STORAGE: Device stored prints are being deleted.
*
* Current active action of the device. A driver can retrieve the action.
*/
@ -194,6 +197,7 @@ typedef enum {
FPI_DEVICE_ACTION_CAPTURE,
FPI_DEVICE_ACTION_LIST,
FPI_DEVICE_ACTION_DELETE,
FPI_DEVICE_ACTION_CLEAR_STORAGE,
} FpiDeviceAction;
GUsbDevice *fpi_device_get_usb_device (FpDevice *device);
@ -271,6 +275,8 @@ void fpi_device_delete_complete (FpDevice *device,
void fpi_device_list_complete (FpDevice *device,
GPtrArray *prints,
GError *error);
void fpi_device_clear_storage_complete (FpDevice *device,
GError *error);
void fpi_device_enroll_progress (FpDevice *device,
gint completed_stages,

18
tests/test-device-fake.c
View file

@ -243,6 +243,23 @@ fpi_device_fake_delete (FpDevice *device)
fpi_device_delete_complete (device, fake_dev->ret_error);
}
static void
fpi_device_fake_clear_storage (FpDevice *device)
{
FpiDeviceFake *fake_dev = FPI_DEVICE_FAKE (device);
fake_dev->last_called_function = fpi_device_fake_clear_storage;
g_assert_cmpuint (fpi_device_get_current_action (device), ==, FPI_DEVICE_ACTION_CLEAR_STORAGE);
if (fake_dev->return_action_error)
{
fpi_device_action_error (device, fake_dev->ret_error);
return;
}
fpi_device_clear_storage_complete (device, fake_dev->ret_error);
}
static void
fpi_device_fake_cancel (FpDevice *device)
{
@ -279,6 +296,7 @@ fpi_device_fake_class_init (FpiDeviceFakeClass *klass)
dev_class->list = fpi_device_fake_list;
dev_class->delete = fpi_device_fake_delete;
dev_class->cancel = fpi_device_fake_cancel;
dev_class->clear_storage = fpi_device_fake_clear_storage;
fpi_device_class_auto_initialize_features (dev_class);
}

48
tests/test-fpi-device.c
View file

@ -586,7 +586,7 @@ test_driver_initial_features (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (fp_device_has_feature (device, FP_DEVICE_FEATURE_CAPTURE));
g_assert_true (fp_device_has_feature (device, FP_DEVICE_FEATURE_IDENTIFY));
@ -595,7 +595,7 @@ test_driver_initial_features (void)
g_assert_true (fp_device_has_feature (device, FP_DEVICE_FEATURE_STORAGE));
g_assert_true (fp_device_has_feature (device, FP_DEVICE_FEATURE_STORAGE_LIST));
g_assert_true (fp_device_has_feature (device, FP_DEVICE_FEATURE_STORAGE_DELETE));
g_assert_false (fp_device_has_feature (device, FP_DEVICE_FEATURE_STORAGE_CLEAR));
g_assert_true (fp_device_has_feature (device, FP_DEVICE_FEATURE_STORAGE_CLEAR));
g_assert_cmpuint (fp_device_get_features (device),
==,
@ -604,7 +604,8 @@ test_driver_initial_features (void)
FP_DEVICE_FEATURE_VERIFY |
FP_DEVICE_FEATURE_STORAGE |
FP_DEVICE_FEATURE_STORAGE_LIST |
FP_DEVICE_FEATURE_STORAGE_DELETE);
FP_DEVICE_FEATURE_STORAGE_DELETE |
FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
@ -617,6 +618,7 @@ test_driver_initial_features_none (void)
dev_class->verify = NULL;
dev_class->identify = NULL;
dev_class->delete = NULL;
dev_class->clear_storage = NULL;
dev_class->features = FP_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
@ -650,7 +652,7 @@ test_driver_initial_features_no_capture (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
@ -671,7 +673,7 @@ test_driver_initial_features_no_verify (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
@ -692,7 +694,7 @@ test_driver_initial_features_no_identify (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
@ -700,7 +702,6 @@ test_driver_initial_features_no_storage (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->list = NULL;
dev_class->delete = NULL;
dev_class->features = FP_DEVICE_FEATURE_NONE;
@ -712,9 +713,9 @@ test_driver_initial_features_no_storage (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
@ -735,7 +736,7 @@ test_driver_initial_features_no_list (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
@ -743,7 +744,28 @@ test_driver_initial_features_no_delete (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->list = NULL;
dev_class->delete = NULL;
dev_class->features = FP_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FP_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_clear (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->clear_storage = NULL;
dev_class->features = FP_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
@ -754,7 +776,7 @@ test_driver_initial_features_no_delete (void)
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FP_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FP_DEVICE_FEATURE_STORAGE_CLEAR);
}
@ -2787,6 +2809,8 @@ main (int argc, char *argv[])
g_test_add_func ("/driver/initial_features/no_storage", test_driver_initial_features_no_storage);
g_test_add_func ("/driver/initial_features/no_list", test_driver_initial_features_no_list);
g_test_add_func ("/driver/initial_features/no_delete", test_driver_initial_features_no_delete);
g_test_add_func ("/driver/initial_features/no_clear", test_driver_initial_features_no_clear);
g_test_add_func ("/driver/probe", test_driver_probe);
g_test_add_func ("/driver/probe/error", test_driver_probe_error);

2
tests/virtual-device.py
View file

@ -1029,7 +1029,7 @@ class VirtualDeviceStorage(VirtualDevice):
self.assertTrue(self.dev.has_feature(FPrint.DeviceFeature.STORAGE))
self.assertTrue(self.dev.has_feature(FPrint.DeviceFeature.STORAGE_LIST))
self.assertTrue(self.dev.has_feature(FPrint.DeviceFeature.STORAGE_DELETE))
self.assertFalse(self.dev.has_feature(FPrint.DeviceFeature.STORAGE_CLEAR))
self.assertTrue(self.dev.has_feature(FPrint.DeviceFeature.STORAGE_CLEAR))
def test_duplicate_enroll(self):
self.enroll_print('testprint', FPrint.Finger.LEFT_LITTLE)