forked from osmocom/wireshark
ba3aa03dcf
Move the code to open capture devices and get properties of capture devices there, joining the code to get a list of capture devices. This lets us do a better job of handling pcap_create() in WinPcap, including handling both WinPcap with pcap_create() and WinPcap without pcap_create() at run time, just in case somebody tries using WinPcap 3.x with a Wireshark built with WinPcap 4.x. It also could make it easier to use libpcap/WinPcap directly in Wireshark and TShark, if we have versions of libpcap/WinPcap that run small helper utilities to do privileged functions, allowing programs using them never to need elevated privileges themselves. That might make it easier to fix some issues with running TShark when not saving to a file (we could avoid the file entirely) and with delays when stopping a capture in Wireshark (Wireshark could stop writing to the file as soon as you click the stop button, rather than letting dumpcap do so when the signal gets to it). It might also make it easier to handle future versions of libpcap/WinPcap that support using pcap_create()/pcap_activate() for remote captures, and other future extensions to libpcap/WinPcap. Rename some XXX_linktype routines to XXX_datalink to indicate that they work with DLT_ values rather than LINKTYPE_ values; future versions of libpcap might use LINKTYPE_ values in newer APIs. Check for pcap_create() on all platforms in CMake. Change-Id: Ia12e1692c96ec945c07a135d246958771a29c817 Reviewed-on: https://code.wireshark.org/review/13062 Petri-Dish: Guy Harris <guy@alum.mit.edu> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Guy Harris <guy@alum.mit.edu>
73 lines
3 KiB
C
73 lines
3 KiB
C
/* capture-pcap-util-int.h
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* Definitions of routines internal to the libpcap/WinPcap utilities
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __PCAP_UTIL_INT_H__
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#define __PCAP_UTIL_INT_H__
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extern if_info_t *if_info_new(const char *name, const char *description,
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gboolean loopback);
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extern void if_info_add_address(if_info_t *if_info, struct sockaddr *addr);
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#ifdef HAVE_PCAP_FINDALLDEVS
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#ifdef HAVE_PCAP_REMOTE
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extern GList *get_interface_list_findalldevs_ex(const char *source,
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struct pcap_rmtauth *auth, int *err, char **err_str);
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#endif /* HAVE_PCAP_REMOTE */
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extern GList *get_interface_list_findalldevs(int *err, char **err_str);
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#endif /* HAVE_PCAP_FINDALLDEVS */
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#ifdef HAVE_PCAP_SET_TSTAMP_PRECISION
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/*
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* Request that a pcap_t provide high-resolution (nanosecond) time
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* stamps; if that request fails, we'll just silently continue to
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* use the microsecond-resolution time stamps, and our caller will
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* find out, when they call have_high_resolution_timestamp(), that
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* we don't have high-resolution time stamps.
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*/
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extern void request_high_resolution_timestamp(pcap_t *pcap_h);
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#endif
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extern if_capabilities_t *get_if_capabilities_local(interface_options *interface_opts,
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char **err_str);
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extern pcap_t *open_capture_device_local(capture_options *capture_opts,
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interface_options *interface_opts, int timeout,
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char (*open_err_str)[PCAP_ERRBUF_SIZE]);
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#ifdef HAVE_PCAP_CREATE
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extern if_capabilities_t *get_if_capabilities_pcap_create(interface_options *interface_opts,
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char **err_str);
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extern pcap_t *open_capture_device_pcap_create(capture_options *capture_opts,
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interface_options *interface_opts, int timeout,
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char (*open_err_str)[PCAP_ERRBUF_SIZE]);
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#endif /* HAVE_PCAP_CREATE */
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extern if_capabilities_t *get_if_capabilities_pcap_open_live(interface_options *interface_opts,
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char **err_str);
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extern pcap_t *open_capture_device_pcap_open_live(interface_options *interface_opts,
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int timeout, char (*open_err_str)[PCAP_ERRBUF_SIZE]);
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/*
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* Get an error message string for a CANT_GET_INTERFACE_LIST error from
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* "get_interface_list()". This is used to let the error message string
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* be platform-dependent.
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*/
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extern gchar *cant_get_if_list_error_message(const char *err_str);
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#endif /* __PCAP_UTIL_INT_H__ */
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