71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/* iface_monitor.h
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* interface monitor by Pontus Fuchs <pontus.fuchs@gmail.com>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later*/
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#ifndef IFACE_MONITOR_H
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#define IFACE_MONITOR_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#ifdef HAVE_LIBPCAP
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/*
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* Callback for interface changes.
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*
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* iface is a pointer to the name of the interface.
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*
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* up is 1 if the interface is up, 0 if it's down.
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*
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* XXX - we really want "gone", not "down", where "gone" may include
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* "down" if the OS requires an interface to be up in order to start
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* a capture on it (as is the case in Linux and in macOS prior to
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* Lion), but should also include *gone*, as in "there is no longer
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* an interface with this name, so it's neither down nor up".
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*
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* We also may want other events, such as address changes, so what
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* we might want is "add", "remove", and "modify" as the events.
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*/
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typedef void (*iface_mon_cb)(const char *iface, int up);
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/*
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* Start watching for interface changes.
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*/
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int
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iface_mon_start(iface_mon_cb cb);
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/*
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* Stop watching for interface changes.
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*/
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void
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iface_mon_stop(void);
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/*
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* Get the socket on which interface changes are delivered, so that
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* we can add it to the event loop.
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*
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* XXX - what if it's not a socket or other file descriptor?
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*/
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int
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iface_mon_get_sock(void);
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/*
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* Call this if something is readable from the interface change socket.
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* It will call the callback as appropriate.
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*/
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void
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iface_mon_event(void);
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#endif /* HAVE_LIBPCAP */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* IFACE_MONITOR_H */
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