mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-01-06 20:10:17 +01:00
e04dc445ec
We call GetConnectionUnixProcessID and GetConnectionUnixUser *a lot*.
And we do so synchronously. Both is a problem.
To avoid the first problem, cache the last few requests with each cached
value being valid for one second.
On a quick test, this saves 98% of the requests:
59 GetConnectionUnixProcessID(*)
3201 GetConnectionUnixProcessID(*) (served from cache)
59 GetConnectionUnixUser(*)
3201 GetConnectionUnixUser(*) (served from cache)
Note that now as we serve requests from the cache, it might be the case
that the D-Bus endpoint already disconnected. Previously, the request would
have failed but now we return the cached user-id and process-id. This
problem is mitigated by only caching the values for up to one second.
Also, it's not really a problem because we cache sender names. Those
are supposed to be unique and not repeat. So, even if the peer already
disconnected, it is still true that the corresponding PID/UID was as
we have cached it. We don't use this API for checking whether the peer
is still connected, but what UID/PID it has/had. That answer is still
correct for the cached value after the peer disconnected.
113 lines
5.5 KiB
C
113 lines
5.5 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
|
|
/* NetworkManager -- Network link manager
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Copyright (C) 2006 - 2008 Red Hat, Inc.
|
|
* Copyright (C) 2006 - 2008 Novell, Inc.
|
|
*/
|
|
|
|
#ifndef __NM_DBUS_MANAGER_H__
|
|
#define __NM_DBUS_MANAGER_H__
|
|
|
|
#include "nm-dbus-utils.h"
|
|
|
|
#define NM_TYPE_DBUS_MANAGER (nm_dbus_manager_get_type ())
|
|
#define NM_DBUS_MANAGER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), NM_TYPE_DBUS_MANAGER, NMDBusManager))
|
|
#define NM_DBUS_MANAGER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), NM_TYPE_DBUS_MANAGER, NMDBusManagerClass))
|
|
#define NM_IS_DBUS_MANAGER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), NM_TYPE_DBUS_MANAGER))
|
|
#define NM_IS_DBUS_MANAGER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), NM_TYPE_DBUS_MANAGER))
|
|
#define NM_DBUS_MANAGER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), NM_TYPE_DBUS_MANAGER, NMDBusManagerClass))
|
|
|
|
#define NM_DBUS_MANAGER_PRIVATE_CONNECTION_NEW "private-connection-new"
|
|
#define NM_DBUS_MANAGER_PRIVATE_CONNECTION_DISCONNECTED "private-connection-disconnected"
|
|
|
|
typedef struct _NMDBusManagerClass NMDBusManagerClass;
|
|
|
|
GType nm_dbus_manager_get_type (void);
|
|
|
|
NMDBusManager *nm_dbus_manager_get (void);
|
|
|
|
typedef void (*NMDBusManagerSetPropertyHandler) (NMDBusObject *obj,
|
|
const NMDBusInterfaceInfoExtended *interface_info,
|
|
const NMDBusPropertyInfoExtended *property_info,
|
|
GDBusConnection *connection,
|
|
const char *sender,
|
|
GDBusMethodInvocation *invocation,
|
|
GVariant *value,
|
|
gpointer user_data);
|
|
|
|
gboolean nm_dbus_manager_acquire_bus (NMDBusManager *self);
|
|
|
|
GDBusConnection *nm_dbus_manager_get_dbus_connection (NMDBusManager *self);
|
|
|
|
void nm_dbus_manager_start (NMDBusManager *self,
|
|
NMDBusManagerSetPropertyHandler set_property_handler,
|
|
gpointer set_property_handler_data);
|
|
|
|
void nm_dbus_manager_stop (NMDBusManager *self);
|
|
|
|
gboolean nm_dbus_manager_is_stopping (NMDBusManager *self);
|
|
|
|
gpointer nm_dbus_manager_lookup_object (NMDBusManager *self, const char *path);
|
|
|
|
void _nm_dbus_manager_obj_export (NMDBusObject *obj);
|
|
void _nm_dbus_manager_obj_unexport (NMDBusObject *obj);
|
|
void _nm_dbus_manager_obj_notify (NMDBusObject *obj,
|
|
guint n_pspecs,
|
|
const GParamSpec *const*pspecs);
|
|
void _nm_dbus_manager_obj_emit_signal (NMDBusObject *obj,
|
|
const NMDBusInterfaceInfoExtended *interface_info,
|
|
const GDBusSignalInfo *signal_info,
|
|
GVariant *args);
|
|
|
|
gboolean nm_dbus_manager_get_caller_info (NMDBusManager *self,
|
|
GDBusMethodInvocation *context,
|
|
const char **out_sender,
|
|
gulong *out_uid,
|
|
gulong *out_pid);
|
|
|
|
gboolean nm_dbus_manager_ensure_uid (NMDBusManager *self,
|
|
GDBusMethodInvocation *context,
|
|
gulong uid,
|
|
GQuark error_domain,
|
|
int error_code);
|
|
|
|
const char *nm_dbus_manager_connection_get_private_name (NMDBusManager *self,
|
|
GDBusConnection *connection);
|
|
|
|
gboolean nm_dbus_manager_get_unix_user (NMDBusManager *self,
|
|
const char *sender,
|
|
gulong *out_uid);
|
|
|
|
gboolean nm_dbus_manager_get_caller_info_from_message (NMDBusManager *self,
|
|
GDBusConnection *connection,
|
|
GDBusMessage *message,
|
|
const char **out_sender,
|
|
gulong *out_uid,
|
|
gulong *out_pid);
|
|
|
|
void nm_dbus_manager_private_server_register (NMDBusManager *self,
|
|
const char *path,
|
|
const char *tag);
|
|
|
|
GDBusProxy *nm_dbus_manager_new_proxy (NMDBusManager *self,
|
|
GDBusConnection *connection,
|
|
GType proxy_type,
|
|
const char *name,
|
|
const char *path,
|
|
const char *iface);
|
|
|
|
#endif /* __NM_DBUS_MANAGER_H__ */
|