/**
* polkit_backend_session_monitor_get_session_for_subject:
* @monitor: A #PolkitBackendSessionMonitor.
* @subject: A #PolkitSubject.
* @error: Return location for error.
*
* Gets the session corresponding to @subject or %NULL if no session exists.
*
* Returns: %NULL if @error is set otherwise a #PolkitUnixSession that should be freed with g_object_unref().
*/
PolkitSubject *
polkit_backend_session_monitor_get_session_for_subject (PolkitBackendSessionMonitor *monitor,
PolkitSubject *subject,
GError **error)
{
PolkitUnixProcess *tmp_process = NULL;
PolkitUnixProcess *process = NULL;
PolkitSubject *session = NULL;
char *session_id = NULL;
pid_t pid;
#if HAVE_SD_UID_GET_DISPLAY
uid_t uid;
#endif
if (POLKIT_IS_UNIX_PROCESS (subject))
process = POLKIT_UNIX_PROCESS (subject); /* We already have a process */
else if (POLKIT_IS_SYSTEM_BUS_NAME (subject))
{
/* Convert bus name to process */
tmp_process = (PolkitUnixProcess*)polkit_system_bus_name_get_process_sync (POLKIT_SYSTEM_BUS_NAME (subject), NULL, error);
if (!tmp_process)
goto out;
process = tmp_process;
}
else
{
g_set_error (error,
POLKIT_ERROR,
POLKIT_ERROR_NOT_SUPPORTED,
"Cannot get session for subject of type %s",
g_type_name (G_TYPE_FROM_INSTANCE (subject)));
}
/* Now do process -> pid -> same session */
g_assert (process != NULL);
pid = polkit_unix_process_get_pid (process);
if (sd_pid_get_session (pid, &session_id) >= 0)
{
session = polkit_unix_session_new (session_id);
goto out;
}
#if HAVE_SD_UID_GET_DISPLAY
/* Now do process -> uid -> graphical session (systemd version 213)*/
if (sd_pid_get_owner_uid (pid, &uid) < 0)
goto out;
if (sd_uid_get_display (uid, &session_id) >= 0)
{
session = polkit_unix_session_new (session_id);
goto out;
}
#endif
out:
free (session_id);
if (tmp_process) g_object_unref (tmp_process);
return session;
}
/**
* polkit_system_bus_name_set_name:
* @system_bus_name: A #PolkitSystemBusName.
* @name: A unique system bus name.
*
* Sets the unique system bus name for @system_bus_name.
*/
void
polkit_system_bus_name_set_name (PolkitSystemBusName *system_bus_name,
const gchar *name)
{
g_return_if_fail (POLKIT_IS_SYSTEM_BUS_NAME (system_bus_name));
g_return_if_fail (g_dbus_is_unique_name (name));
g_free (system_bus_name->name);
system_bus_name->name = g_strdup (name);
}
/**
* polkit_backend_session_monitor_get_user:
* @monitor: A #PolkitBackendSessionMonitor.
* @subject: A #PolkitSubject.
* @error: Return location for error.
*
* Gets the user corresponding to @subject or %NULL if no user exists.
*
* Returns: %NULL if @error is set otherwise a #PolkitUnixUser that should be freed with g_object_unref().
*/
PolkitIdentity *
polkit_backend_session_monitor_get_user_for_subject (PolkitBackendSessionMonitor *monitor,
PolkitSubject *subject,
GError **error)
{
PolkitIdentity *ret;
guint32 uid;
ret = NULL;
if (POLKIT_IS_UNIX_PROCESS (subject))
{
uid = polkit_unix_process_get_uid (POLKIT_UNIX_PROCESS (subject));
if ((gint) uid == -1)
{
g_set_error (error,
POLKIT_ERROR,
POLKIT_ERROR_FAILED,
"Unix process subject does not have uid set");
goto out;
}
ret = polkit_unix_user_new (uid);
}
else if (POLKIT_IS_SYSTEM_BUS_NAME (subject))
{
ret = (PolkitIdentity*)polkit_system_bus_name_get_user_sync (POLKIT_SYSTEM_BUS_NAME (subject), NULL, error);
}
else if (POLKIT_IS_UNIX_SESSION (subject))
{
if (sd_session_get_uid (polkit_unix_session_get_session_id (POLKIT_UNIX_SESSION (subject)), &uid) < 0)
{
g_set_error (error,
POLKIT_ERROR,
POLKIT_ERROR_FAILED,
"Error getting uid for session");
goto out;
}
ret = polkit_unix_user_new (uid);
}
out:
return ret;
}
static void
polkit_system_bus_name_exists (PolkitSubject *subject,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GSimpleAsyncResult *simple;
g_return_if_fail (POLKIT_IS_SYSTEM_BUS_NAME (subject));
simple = g_simple_async_result_new (G_OBJECT (subject),
callback,
user_data,
polkit_system_bus_name_exists);
g_simple_async_result_run_in_thread (simple,
exists_in_thread_func,
G_PRIORITY_DEFAULT,
cancellable);
g_object_unref (simple);
}
/**
* polkit_system_bus_name_get_user_sync:
* @system_bus_name: A #PolkitSystemBusName.
* @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: (allow-none): Return location for error or %NULL.
*
* Synchronously gets a #PolkitUnixUser object for @system_bus_name;
* the calling thread is blocked until a reply is received.
*
* Returns: (allow-none) (transfer full): A #PolkitUnixUser object or %NULL if @error is set.
**/
PolkitUnixUser *
polkit_system_bus_name_get_user_sync (PolkitSystemBusName *system_bus_name,
GCancellable *cancellable,
GError **error)
{
PolkitUnixUser *ret = NULL;
guint32 uid;
g_return_val_if_fail (POLKIT_IS_SYSTEM_BUS_NAME (system_bus_name), NULL);
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (!polkit_system_bus_name_get_creds_sync (system_bus_name, &uid, NULL,
cancellable, error))
goto out;
ret = (PolkitUnixUser*)polkit_unix_user_new (uid);
out:
return ret;
}
/**
* polkit_system_bus_name_get_process_sync:
* @system_bus_name: A #PolkitSystemBusName.
* @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: (allow-none): Return location for error or %NULL.
*
* Synchronously gets a #PolkitUnixProcess object for @system_bus_name
* - the calling thread is blocked until a reply is received.
*
* Returns: (allow-none) (transfer full): A #PolkitUnixProcess object or %NULL if @error is set.
**/
PolkitSubject *
polkit_system_bus_name_get_process_sync (PolkitSystemBusName *system_bus_name,
GCancellable *cancellable,
GError **error)
{
PolkitSubject *ret = NULL;
guint32 pid;
guint32 uid;
g_return_val_if_fail (POLKIT_IS_SYSTEM_BUS_NAME (system_bus_name), NULL);
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
if (!polkit_system_bus_name_get_creds_sync (system_bus_name, &uid, &pid,
cancellable, error))
goto out;
ret = polkit_unix_process_new_for_owner (pid, 0, uid);
out:
return ret;
}
/**
* polkit_backend_session_monitor_get_session_for_subject:
* @monitor: A #PolkitBackendSessionMonitor.
* @subject: A #PolkitSubject.
* @error: Return location for error.
*
* Gets the session corresponding to @subject or %NULL if no session exists.
*
* Returns: %NULL if @error is set otherwise a #PolkitUnixSession that should be freed with g_object_unref().
*/
PolkitSubject *
polkit_backend_session_monitor_get_session_for_subject (PolkitBackendSessionMonitor *monitor,
PolkitSubject *subject,
GError **error)
{
PolkitSubject *session;
session = NULL;
if (POLKIT_IS_UNIX_PROCESS (subject))
{
gchar *session_id;
pid_t pid;
pid = polkit_unix_process_get_pid (POLKIT_UNIX_PROCESS (subject));
if (sd_pid_get_session (pid, &session_id) < 0)
goto out;
session = polkit_unix_session_new (session_id);
free (session_id);
}
else if (POLKIT_IS_SYSTEM_BUS_NAME (subject))
{
guint32 pid;
gchar *session_id;
GVariant *result;
result = g_dbus_connection_call_sync (monitor->system_bus,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus",
"GetConnectionUnixProcessID",
g_variant_new ("(s)", polkit_system_bus_name_get_name (POLKIT_SYSTEM_BUS_NAME (subject))),
G_VARIANT_TYPE ("(u)"),
G_DBUS_CALL_FLAGS_NONE,
-1, /* timeout_msec */
NULL, /* GCancellable */
error);
if (result == NULL)
goto out;
g_variant_get (result, "(u)", &pid);
g_variant_unref (result);
if (sd_pid_get_session (pid, &session_id) < 0)
goto out;
session = polkit_unix_session_new (session_id);
free (session_id);
}
else
{
g_set_error (error,
POLKIT_ERROR,
POLKIT_ERROR_NOT_SUPPORTED,
"Cannot get user for subject of type %s",
g_type_name (G_TYPE_FROM_INSTANCE (subject)));
}
out:
return session;
}
/**
* polkit_backend_session_monitor_get_user:
* @monitor: A #PolkitBackendSessionMonitor.
* @subject: A #PolkitSubject.
* @error: Return location for error.
*
* Gets the user corresponding to @subject or %NULL if no user exists.
*
* Returns: %NULL if @error is set otherwise a #PolkitUnixUser that should be freed with g_object_unref().
*/
PolkitIdentity *
polkit_backend_session_monitor_get_user_for_subject (PolkitBackendSessionMonitor *monitor,
PolkitSubject *subject,
GError **error)
{
PolkitIdentity *ret;
guint32 uid;
ret = NULL;
if (POLKIT_IS_UNIX_PROCESS (subject))
{
uid = polkit_unix_process_get_uid (POLKIT_UNIX_PROCESS (subject));
if ((gint) uid == -1)
{
g_set_error (error,
POLKIT_ERROR,
POLKIT_ERROR_FAILED,
"Unix process subject does not have uid set");
goto out;
}
ret = polkit_unix_user_new (uid);
}
else if (POLKIT_IS_SYSTEM_BUS_NAME (subject))
{
GVariant *result;
result = g_dbus_connection_call_sync (monitor->system_bus,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus",
"GetConnectionUnixUser",
g_variant_new ("(s)", polkit_system_bus_name_get_name (POLKIT_SYSTEM_BUS_NAME (subject))),
G_VARIANT_TYPE ("(u)"),
G_DBUS_CALL_FLAGS_NONE,
-1, /* timeout_msec */
NULL, /* GCancellable */
error);
if (result == NULL)
goto out;
g_variant_get (result, "(u)", &uid);
g_variant_unref (result);
ret = polkit_unix_user_new (uid);
}
else if (POLKIT_IS_UNIX_SESSION (subject))
{
if (sd_session_get_uid (polkit_unix_session_get_session_id (POLKIT_UNIX_SESSION (subject)), &uid) < 0)
{
g_set_error (error,
POLKIT_ERROR,
POLKIT_ERROR_FAILED,
"Error getting uid for session");
goto out;
}
ret = polkit_unix_user_new (uid);
}
out:
return ret;
}
/**
* polkit_system_bus_name_get_name:
* @system_bus_name: A #PolkitSystemBusName.
*
* Gets the unique system bus name for @system_bus_name.
*
* Returns: The unique system bus name for @system_bus_name. Do not
* free, this string is owned by @system_bus_name.
*/
const gchar *
polkit_system_bus_name_get_name (PolkitSystemBusName *system_bus_name)
{
g_return_val_if_fail (POLKIT_IS_SYSTEM_BUS_NAME (system_bus_name), NULL);
return system_bus_name->name;
}