In Wireshark and TShark, run dumpcap to get interface lists and lists of

link-layer header types for interfaces; if special privileges are
necessary to open capture devices, Wireshark and TShark shouldn't have
those privileges, but dumpcap should.

svn path=/trunk/; revision=32104

1 files changed, 88 insertions, 0 deletions

diff --git a/capture_ifinfo.h b/capture_ifinfo.h
new file mode 100644
index 0000000000..28ebb5c701
--- /dev/null
+++ b/capture_ifinfo.h
@@ -0,0 +1,88 @@
+/* capture_ifinfo.h
+ * Definitions for routines to get information about capture interfaces
+ *
+ * $Id$
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef __CAPTURE_IFINFO_H__
+#define __CAPTURE_IFINFO_H__
+
+#ifdef HAVE_LIBPCAP
+
+/*
+ * The list of interfaces returned by "get_interface_list()" is
+ * a list of these structures.
+ */
+typedef struct {
+	char	*name;          /* e.g. "eth0" */
+	char	*description;   /* from OS, e.g. "Local Area Connection" or NULL */
+	GSList  *addrs;         /* containing address values of if_addr_t */
+	gboolean loopback;      /* TRUE if loopback, FALSE otherwise */
+} if_info_t;
+
+/*
+ * An address in the "addrs" list.
+ */
+typedef enum {
+	IF_AT_IPv4,
+	IF_AT_IPv6
+} if_address_type;
+
+typedef struct {
+	if_address_type ifat_type;
+	union {
+		guint32 ip4_addr;   /*  4 byte IP V4 address, or */
+		guint8 ip6_addr[16];/* 16 byte IP V6 address */
+	} addr;
+} if_addr_t;
+
+/**
+ * Fetch the interface list from a child process.
+ */
+extern GList *capture_interface_list(int *err, char **err_str);
+
+/* Error values from "get_interface_list()/capture_interface_list()". */
+#define	CANT_GET_INTERFACE_LIST	1	/* error getting list */
+#define	NO_INTERFACES_FOUND	2	/* list is empty */
+#define	CANT_RUN_DUMPCAP	3	/* problem running dumpcap */
+
+void free_interface_list(GList *if_list);
+
+/*
+ * The list of data link types returned by "get_pcap_linktype_list()" and
+ * "capture_pcap_linktype_list()" is a list of these structures.
+ */
+typedef struct {
+	int	dlt;            /* e.g. DLT_EN10MB (which is 1) */
+	char	*name;          /* e.g. "EN10MB" or "DLT 1" */
+	char	*description;   /* descriptive name from wiretap e.g. "Ethernet", NULL if unknown */
+} data_link_info_t;
+
+/**
+ * Fetch the linktype list for the specified interface from a child process.
+ */
+extern GList *capture_pcap_linktype_list(const char *devname, char **err_str);
+
+void free_pcap_linktype_list(GList *linktype_list);
+
+#endif /* HAVE_LIBPCAP */
+
+#endif /* __CAPTURE_IFINFO_H__ */