2 * Utility definitions for packet capture
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 #ifndef __CAPTURE_PCAP_UTIL_H__
26 #define __CAPTURE_PCAP_UTIL_H__
32 #endif /* __cplusplus */
37 * A snapshot length of 0 is useless - and libpcap/WinPcap don't guarantee
38 * that a snapshot length of 0 will work, and, on some platforms, it won't
39 * (with BPF, for example, the kernel is told the snapshot length via the
40 * return value of the BPF program, and a return value of 0 means "drop
41 * the packet"), so the minimum packet size is 1 byte.
43 #define MIN_PACKET_SIZE 1 /* minimum amount of packet data we can read */
45 GList *get_interface_list(int *err, char **err_str);
46 #ifdef HAVE_PCAP_REMOTE
47 GList *get_remote_interface_list(const char *hostname, const char *port,
48 int auth_type, const char *username,
49 const char *passwd, int *err, char **err_str);
52 GList *get_pcap_linktype_list(const char *devname, char **err_str);
54 /* get/set the link type of an interface */
55 /* (only used in capture_loop.c / capture-pcap-util.c) */
56 int get_pcap_linktype(pcap_t *pch, const char *devname);
59 const char *linktype_val_to_name(int dlt);
60 int linktype_name_to_val(const char *linktype);
64 #endif /* __cplusplus */
66 #endif /* HAVE_LIBPCAP */
69 * Append to a GString an indication of the version of libpcap/WinPcap
70 * with which we were compiled, if we were, or an indication that we
71 * weren't compiled with libpcap/WinPcap, if we weren't.
73 extern void get_compiled_pcap_version(GString *str);
76 * Append to a GString an indication of the version of libpcap/WinPcap
77 * with which we're running, or an indication that we're not running
78 * with libpcap/WinPcap, if we were compiled with libpcap/WinPcap,
79 * or nothing, if we weren't compiled with libpcap/WinPcap.
81 extern void get_runtime_pcap_version(GString *str);
83 #endif /* __CAPTURE_PCAP_UTIL_H__ */