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If the interface has no carrier, no addresses or no routes there is no point in starting a connectivity check on it because it will fail. Moreover, doing the check on a device without routes causes the addition of a negative entry in the ARP table for each of the addresses associated with the connectivity check host; this can lead to poor network performances. https://gitlab.freedesktop.org/NetworkManager/NetworkManager/issues/181
84 lines
3.6 KiB
C
84 lines
3.6 KiB
C
/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2011 Thomas Bechtold <thomasbechtold@jpberlin.de>
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* Copyright (C) 2017 Red Hat, Inc.
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*/
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#ifndef __NETWORKMANAGER_CONNECTIVITY_H__
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#define __NETWORKMANAGER_CONNECTIVITY_H__
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#include "nm-dbus-interface.h"
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/*****************************************************************************/
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static inline int
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nm_connectivity_state_cmp (NMConnectivityState a, NMConnectivityState b)
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{
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if (a == NM_CONNECTIVITY_PORTAL && b == NM_CONNECTIVITY_LIMITED)
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return 1;
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if (b == NM_CONNECTIVITY_PORTAL && a == NM_CONNECTIVITY_LIMITED)
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return -1;
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NM_CMP_DIRECT (a, b);
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return 0;
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}
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/*****************************************************************************/
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#define NM_CONNECTIVITY_ERROR ((NMConnectivityState) -1)
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#define NM_CONNECTIVITY_FAKE ((NMConnectivityState) -2)
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#define NM_CONNECTIVITY_CANCELLED ((NMConnectivityState) -3)
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#define NM_CONNECTIVITY_DISPOSING ((NMConnectivityState) -4)
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#define NM_TYPE_CONNECTIVITY (nm_connectivity_get_type ())
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#define NM_CONNECTIVITY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_CONNECTIVITY, NMConnectivity))
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#define NM_CONNECTIVITY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_CONNECTIVITY, NMConnectivityClass))
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#define NM_IS_CONNECTIVITY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_CONNECTIVITY))
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#define NM_IS_CONNECTIVITY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_CONNECTIVITY))
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#define NM_CONNECTIVITY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_CONNECTIVITY, NMConnectivityClass))
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#define NM_CONNECTIVITY_CONFIG_CHANGED "config-changed"
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typedef struct _NMConnectivityClass NMConnectivityClass;
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GType nm_connectivity_get_type (void);
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NMConnectivity *nm_connectivity_get (void);
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const char *nm_connectivity_state_to_string (NMConnectivityState state);
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gboolean nm_connectivity_check_enabled (NMConnectivity *self);
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guint nm_connectivity_get_interval (NMConnectivity *self);
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typedef struct _NMConnectivityCheckHandle NMConnectivityCheckHandle;
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typedef void (*NMConnectivityCheckCallback) (NMConnectivity *self,
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NMConnectivityCheckHandle *handle,
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NMConnectivityState state,
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gpointer user_data);
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NMConnectivityCheckHandle *nm_connectivity_check_start (NMConnectivity *self,
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int family,
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NMPlatform *platform,
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int ifindex,
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const char *iface,
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NMConnectivityCheckCallback callback,
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gpointer user_data);
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void nm_connectivity_check_cancel (NMConnectivityCheckHandle *handle);
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#endif /* __NETWORKMANAGER_CONNECTIVITY_H__ */
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