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PolkitBackendAuthority

PolkitBackendAuthority — Abstract base class for authority backends

Stability Level

Unstable, unless otherwise indicated

Synopsis

#define             POLKIT_BACKEND_AUTHORITY_EXTENSION_POINT_NAME
                    PolkitBackendAuthority;
                    PolkitBackendAuthorityClass;
const gchar *       polkit_backend_authority_get_name   (PolkitBackendAuthority *authority);
const gchar *       polkit_backend_authority_get_version
                                                        (PolkitBackendAuthority *authority);
PolkitAuthorityFeatures  polkit_backend_authority_get_features
                                                        (PolkitBackendAuthority *authority);
void                polkit_backend_authority_check_authorization
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         const gchar *action_id,
                                                         PolkitDetails *details,
                                                         PolkitCheckAuthorizationFlags flags,
                                                         GCancellable *cancellable,
                                                         GAsyncReadyCallback callback,
                                                         gpointer user_data);
PolkitAuthorizationResult * polkit_backend_authority_check_authorization_finish
                                                        (PolkitBackendAuthority *authority,
                                                         GAsyncResult *res,
                                                         GError **error);
gboolean            polkit_backend_authority_register_authentication_agent
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         const gchar *locale,
                                                         const gchar *object_path,
                                                         GError **error);
gboolean            polkit_backend_authority_unregister_authentication_agent
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         const gchar *object_path,
                                                         GError **error);
gboolean            polkit_backend_authority_authentication_agent_response
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *cookie,
                                                         PolkitIdentity *identity,
                                                         GError **error);
GList *             polkit_backend_authority_enumerate_actions
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *locale,
                                                         GError **error);
void                polkit_backend_authority_system_bus_name_owner_changed
                                                        (PolkitBackendAuthority *authority,
                                                         const gchar *name,
                                                         const gchar *old_owner,
                                                         const gchar *new_owner);
GList *             polkit_backend_authority_enumerate_temporary_authorizations
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         GError **error);
gboolean            polkit_backend_authority_revoke_temporary_authorizations
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         GError **error);
void                polkit_backend_authority_add_lockdown_for_action
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *action_id,
                                                         GAsyncReadyCallback callback,
                                                         gpointer user_data);
gboolean            polkit_backend_authority_add_lockdown_for_action_finish
                                                        (PolkitBackendAuthority *authority,
                                                         GAsyncResult *res,
                                                         GError **error);
void                polkit_backend_authority_remove_lockdown_for_action
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *action_id,
                                                         GAsyncReadyCallback callback,
                                                         gpointer user_data);
gboolean            polkit_backend_authority_remove_lockdown_for_action_finish
                                                        (PolkitBackendAuthority *authority,
                                                         GAsyncResult *res,
                                                         GError **error);
PolkitBackendAuthority * polkit_backend_authority_get   (void);
gboolean            polkit_backend_register_authority   (PolkitBackendAuthority *authority,
                                                         const gchar *well_known_name,
                                                         const gchar *object_path,
                                                         GError **error);

Object Hierarchy

  GObject
   +----PolkitBackendAuthority
         +----PolkitBackendInteractiveAuthority

Signals

  "changed"                                        : Run Last

Description

To implement an authority backend, simply subclass PolkitBackendAuthority and implement the required VFuncs.

Details

POLKIT_BACKEND_AUTHORITY_EXTENSION_POINT_NAME

#define POLKIT_BACKEND_AUTHORITY_EXTENSION_POINT_NAME "polkit-backend-authority-1"

Extension point name for authority backend implementations.


PolkitBackendAuthority

typedef struct _PolkitBackendAuthority PolkitBackendAuthority;

The PolkitBackendAuthority struct should not be accessed directly.


PolkitBackendAuthorityClass

typedef struct {
  GObjectClass parent_class;

  /* Signals */
  void (*changed)  (PolkitBackendAuthority   *authority);

  /* VTable */

  const gchar             *(*get_name)     (PolkitBackendAuthority *authority);
  const gchar             *(*get_version)  (PolkitBackendAuthority *authority);
  PolkitAuthorityFeatures  (*get_features) (PolkitBackendAuthority *authority);

  GList *(*enumerate_actions)  (PolkitBackendAuthority   *authority,
                                PolkitSubject            *caller,
                                const gchar              *locale,
                                GError                  **error);

  void (*check_authorization) (PolkitBackendAuthority        *authority,
                               PolkitSubject                 *caller,
                               PolkitSubject                 *subject,
                               const gchar                   *action_id,
                               PolkitDetails                 *details,
                               PolkitCheckAuthorizationFlags  flags,
                               GCancellable                  *cancellable,
                               GAsyncReadyCallback            callback,
                               gpointer                       user_data);

  PolkitAuthorizationResult * (*check_authorization_finish) (PolkitBackendAuthority  *authority,
                                                             GAsyncResult            *res,
                                                             GError                 **error);

  gboolean (*register_authentication_agent) (PolkitBackendAuthority   *authority,
                                             PolkitSubject            *caller,
                                             PolkitSubject            *subject,
                                             const gchar              *locale,
                                             const gchar              *object_path,
                                             GError                  **error);

  gboolean (*unregister_authentication_agent) (PolkitBackendAuthority   *authority,
                                               PolkitSubject            *caller,
                                               PolkitSubject            *subject,
                                               const gchar              *object_path,
                                               GError                  **error);

  gboolean (*authentication_agent_response) (PolkitBackendAuthority   *authority,
                                             PolkitSubject            *caller,
                                             const gchar              *cookie,
                                             PolkitIdentity           *identity,
                                             GError                  **error);

  GList *(*enumerate_temporary_authorizations) (PolkitBackendAuthority   *authority,
                                                PolkitSubject            *caller,
                                                PolkitSubject            *subject,
                                                GError                  **error);

  gboolean (*revoke_temporary_authorizations) (PolkitBackendAuthority   *authority,
                                               PolkitSubject            *caller,
                                               PolkitSubject            *subject,
                                               GError                  **error);

  gboolean (*revoke_temporary_authorization_by_id) (PolkitBackendAuthority   *authority,
                                                    PolkitSubject            *caller,
                                                    const gchar              *id,
                                                    GError                  **error);

  void (*add_lockdown_for_action) (PolkitBackendAuthority  *authority,
                                   PolkitSubject           *caller,
                                   const gchar             *action_id,
                                   GAsyncReadyCallback      callback,
                                   gpointer                 user_data);

  gboolean (*add_lockdown_for_action_finish) (PolkitBackendAuthority  *authority,
                                              GAsyncResult            *res,
                                              GError                 **error);

  void (*remove_lockdown_for_action) (PolkitBackendAuthority  *authority,
                                      PolkitSubject           *caller,
                                      const gchar             *action_id,
                                      GAsyncReadyCallback      callback,
                                      gpointer                 user_data);

  gboolean (*remove_lockdown_for_action_finish) (PolkitBackendAuthority  *authority,
                                                 GAsyncResult            *res,
                                                 GError                 **error);

  /* TODO: need something more efficient such that we don't watch all name changes */
  void (*system_bus_name_owner_changed)  (PolkitBackendAuthority   *authority,
                                          const gchar              *name,
                                          const gchar              *old_owner,
                                          const gchar              *new_owner);
} PolkitBackendAuthorityClass;

VFuncs that authority backends need to implement.

GObjectClass parent_class;

The parent class.

changed ()

Function pointer for "changed" signal.

get_name ()

get_version ()

get_features ()

enumerate_actions ()

Enumerates registered actions on the system. See polkit_backend_authority_enumerate_actions() for details.

check_authorization ()

Called to initiate an asynchronous authorization check. See polkit_backend_authority_check_authorization() for details.

check_authorization_finish ()

Called when finishing an authorization check. See polkit_backend_authority_check_authorization_finish() for details.

register_authentication_agent ()

Called when an authentication agent is attempting to register or NULL if the backend doesn't support the operation. See polkit_backend_authority_register_authentication_agent() for details.

unregister_authentication_agent ()

Called when an authentication agent is attempting to unregister or NULL if the backend doesn't support the operation. See polkit_backend_authority_unregister_authentication_agent() for details.

authentication_agent_response ()

Called by an authentication agent when the user successfully authenticates or NULL if the backend doesn't support the operation. See polkit_backend_authority_authentication_agent_response() for details.

enumerate_temporary_authorizations ()

Called to enumerate temporary authorizations or NULL if the backend doesn't support the operation. See polkit_backend_authority_enumerate_temporary_authorizations() for details.

revoke_temporary_authorizations ()

Called to revoke temporary authorizations or NULL if the backend doesn't support the operation. See polkit_backend_authority_revoke_temporary_authorizations() for details.

revoke_temporary_authorization_by_id ()

Called to revoke a temporary authorization identified by id or NULL if the backend doesn't support the operation. See polkit_backend_authority_revoke_temporary_authorization_by_id() for details.

add_lockdown_for_action ()

Called to add lock down for an action. See polkit_backend_authority_add_lockdown_for_action() for details. Can be NULL if not supported by the backend.

add_lockdown_for_action_finish ()

Called to finish adding lock down for an an action. See polkit_backend_authority_add_lockdown_for_action_finish() for details. Can be NULL if not supported by the backend.

remove_lockdown_for_action ()

Called when removing lock down for an action. See polkit_backend_authority_remove_lockdown_for_action() for details. Can be NULL if not supported by the backend.

remove_lockdown_for_action_finish ()

Called to finish removing lock down for an action. See polkit_backend_authority_remove_lockdown_for_action_finish() for details. Can be NULL if not supported by the backend.

system_bus_name_owner_changed ()

temporary VFunc, to be removed before API is declared stable.

polkit_backend_authority_get_name ()

const gchar *       polkit_backend_authority_get_name   (PolkitBackendAuthority *authority);

Gets the name of the authority backend.

authority :

A PolkitBackendAuthority.

Returns :

The name of the backend.

polkit_backend_authority_get_version ()

const gchar *       polkit_backend_authority_get_version
                                                        (PolkitBackendAuthority *authority);

Gets the version of the authority backend.

authority :

A PolkitBackendAuthority.

Returns :

The name of the backend.

polkit_backend_authority_get_features ()

PolkitAuthorityFeatures  polkit_backend_authority_get_features
                                                        (PolkitBackendAuthority *authority);

Gets the features supported by the authority backend.

authority :

A PolkitBackendAuthority.

Returns :

Flags from PolkitAuthorityFeatures.

polkit_backend_authority_check_authorization ()

void                polkit_backend_authority_check_authorization
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         const gchar *action_id,
                                                         PolkitDetails *details,
                                                         PolkitCheckAuthorizationFlags flags,
                                                         GCancellable *cancellable,
                                                         GAsyncReadyCallback callback,
                                                         gpointer user_data);

Asynchronously checks if subject is authorized to perform the action represented by action_id.

When the operation is finished, callback will be invoked. You can then call polkit_backend_authority_check_authorization_finish() to get the result of the operation.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

subject :

A PolkitSubject.

action_id :

The action to check for.

details :

Details about the action or NULL.

flags :

A set of PolkitCheckAuthorizationFlags.

cancellable :

A GCancellable.

callback :

A GAsyncReadyCallback to call when the request is satisfied.

user_data :

The data to pass to callback.

polkit_backend_authority_check_authorization_finish ()

PolkitAuthorizationResult * polkit_backend_authority_check_authorization_finish
                                                        (PolkitBackendAuthority *authority,
                                                         GAsyncResult *res,
                                                         GError **error);

Finishes checking if a subject is authorized for an action.

authority :

A PolkitBackendAuthority.

res :

A GAsyncResult obtained from the callback.

error :

Return location for error or NULL.

Returns :

A PolkitAuthorizationResult or NULL if error is set. Free with g_object_unref().

polkit_backend_authority_register_authentication_agent ()

gboolean            polkit_backend_authority_register_authentication_agent
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         const gchar *locale,
                                                         const gchar *object_path,
                                                         GError **error);

Registers an authentication agent.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

subject :

The subject the authentication agent wants to register for.

locale :

The locale of the authentication agent.

object_path :

The object path for the authentication agent.

error :

Return location for error or NULL.

Returns :

TRUE if the authentication agent was successfully registered, FALSE if error is set.

polkit_backend_authority_unregister_authentication_agent ()

gboolean            polkit_backend_authority_unregister_authentication_agent
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         const gchar *object_path,
                                                         GError **error);

Unregisters an authentication agent.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

subject :

The subject the agent claims to be registered at.

object_path :

The object path that the authentication agent is registered at.

error :

Return location for error or NULL.

Returns :

TRUE if the authentication agent was successfully unregistered, FALSE if error is set.

polkit_backend_authority_authentication_agent_response ()

gboolean            polkit_backend_authority_authentication_agent_response
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *cookie,
                                                         PolkitIdentity *identity,
                                                         GError **error);

Provide response that identity successfully authenticated for the authentication request identified by cookie.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

cookie :

The cookie passed to the authentication agent from the authority.

identity :

The identity that was authenticated.

error :

Return location for error or NULL.

Returns :

TRUE if authority acknowledged the call, FALSE if error is set.

polkit_backend_authority_enumerate_actions ()

GList *             polkit_backend_authority_enumerate_actions
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *locale,
                                                         GError **error);

Retrieves all registered actions.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

locale :

The locale to retrieve descriptions for.

error :

Return location for error or NULL.

Returns :

A list of PolkitActionDescription objects or NULL if error is set. The returned list should be freed with g_list_free() after each element have been freed with g_object_unref().

polkit_backend_authority_system_bus_name_owner_changed ()

void                polkit_backend_authority_system_bus_name_owner_changed
                                                        (PolkitBackendAuthority *authority,
                                                         const gchar *name,
                                                         const gchar *old_owner,
                                                         const gchar *new_owner);

polkit_backend_authority_enumerate_temporary_authorizations ()

GList *             polkit_backend_authority_enumerate_temporary_authorizations
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         GError **error);

Gets temporary authorizations for subject.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

subject :

The subject to get temporary authorizations for.

error :

Return location for error.

Returns :

A list of PolkitTemporaryAuthorization objects or NULL if error is set. The returned list should be freed with g_list_free() after each element have been freed with g_object_unref().

polkit_backend_authority_revoke_temporary_authorizations ()

gboolean            polkit_backend_authority_revoke_temporary_authorizations
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         PolkitSubject *subject,
                                                         GError **error);

Revokes temporary authorizations for subject.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that initiated the query.

subject :

The subject to revoke temporary authorizations for.

error :

Return location for error.

Returns :

TRUE if the operation succeeded, FALSE if error is set.

polkit_backend_authority_add_lockdown_for_action ()

void                polkit_backend_authority_add_lockdown_for_action
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *action_id,
                                                         GAsyncReadyCallback callback,
                                                         gpointer user_data);

Asynchronously add locks down for action_id.

When the operation is finished, callback will be invoked. You can then call polkit_backend_authority_add_lockdown_for_action_finish() to get the result of the operation.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that called the method.

action_id :

The action id.

callback :

A GAsyncReadyCallback to call when the request is satisfied.

user_data :

The data to pass to callback.

polkit_backend_authority_add_lockdown_for_action_finish ()

gboolean            polkit_backend_authority_add_lockdown_for_action_finish
                                                        (PolkitBackendAuthority *authority,
                                                         GAsyncResult *res,
                                                         GError **error);

Finishes adding lock down for an action.

authority :

A PolkitBackendAuthority.

res :

A GAsyncResult obtained from the callback.

error :

Return location for error or NULL.

Returns :

TRUE if the operation succeeded or, FALE if error is set.

polkit_backend_authority_remove_lockdown_for_action ()

void                polkit_backend_authority_remove_lockdown_for_action
                                                        (PolkitBackendAuthority *authority,
                                                         PolkitSubject *caller,
                                                         const gchar *action_id,
                                                         GAsyncReadyCallback callback,
                                                         gpointer user_data);

Asynchronously remove locks down for action_id.

When the operation is finished, callback will be invoked. You can then call polkit_backend_authority_remove_lockdown_for_action_finish() to get the result of the operation.

authority :

A PolkitBackendAuthority.

caller :

The system bus name that called the method.

action_id :

The action id.

callback :

A GAsyncReadyCallback to call when the request is satisfied.

user_data :

The data to pass to callback.

polkit_backend_authority_remove_lockdown_for_action_finish ()

gboolean            polkit_backend_authority_remove_lockdown_for_action_finish
                                                        (PolkitBackendAuthority *authority,
                                                         GAsyncResult *res,
                                                         GError **error);

Finishes removing lock down for an action.

authority :

A PolkitBackendAuthority.

res :

A GAsyncResult obtained from the callback.

error :

Return location for error or NULL.

Returns :

TRUE if the operation succeeded or, FALE if error is set.

polkit_backend_authority_get ()

PolkitBackendAuthority * polkit_backend_authority_get   (void);

Loads all GIOModules from $(libdir)/polkit-1/extensions to determine what implementation of PolkitBackendAuthority to use. Then instantiates an object of the implementation with the highest priority and unloads all other modules.

Returns :

A PolkitBackendAuthority. Free with g_object_unref().

polkit_backend_register_authority ()

gboolean            polkit_backend_register_authority   (PolkitBackendAuthority *authority,
                                                         const gchar *well_known_name,
                                                         const gchar *object_path,
                                                         GError **error);

Registers authority on the system message bus.

authority :

A PolkitBackendAuthority.

well_known_name :

Well-known name to claim on the system bus or NULL to not claim a well-known name.

object_path :

Object path of the authority.

error :

Return location for error.

Returns :

TRUE if authority was registered, FALSE if error is set.

Signal Details

The "changed" signal

void                user_function                      (PolkitBackendAuthority *authority,
                                                        gpointer                user_data)      : Run Last

Emitted when actions and/or authorizations change.

authority :

A PolkitBackendAuthority.

user_data :

user data set when the signal handler was connected.

See Also

PolkitBackendLocalAuthority
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