forked from osmocom/wireshark
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/* ethertype.c
|
|
* Routines for calling the right protocol for the ethertype.
|
|
* This is called by both packet-eth.c (Ethernet II) and packet-llc.c (SNAP)
|
|
*
|
|
* $Id: ethertype.c,v 1.13 1999/03/23 03:14:34 gram Exp $
|
|
*
|
|
* Gilbert Ramirez <gram@verdict.uthscsa.edu>
|
|
*
|
|
* Ethereal - Network traffic analyzer
|
|
* By Gerald Combs <gerald@zing.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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
# include <sys/types.h>
|
|
#endif
|
|
|
|
#include <glib.h>
|
|
#include "packet.h"
|
|
#include "etypes.h"
|
|
|
|
gchar *
|
|
ethertype_to_str(guint16 etype, const char *fmt)
|
|
{
|
|
static const value_string etype_vals[] = {
|
|
{ETHERTYPE_IP, "IP" },
|
|
{ETHERTYPE_IPv6, "IPv6" },
|
|
{ETHERTYPE_ARP, "ARP" },
|
|
{ETHERTYPE_REVARP, "RARP" },
|
|
{ETHERTYPE_ATALK, "Appletalk" },
|
|
{ETHERTYPE_AARP, "AARP" },
|
|
{ETHERTYPE_IPX, "Netware IPX/SPX"},
|
|
{ETHERTYPE_VINES, "Vines" },
|
|
{ETHERTYPE_CDP, "CDP" }, /* Cisco Discovery Protocol */
|
|
{ETHERTYPE_LOOP, "Loopback" }, /* Ethernet Loopback */
|
|
{0, NULL } };
|
|
|
|
return val_to_str(etype, etype_vals, fmt);
|
|
}
|
|
|
|
void
|
|
capture_ethertype(guint16 etype, int offset,
|
|
const u_char *pd, guint32 cap_len, packet_counts *ld)
|
|
{
|
|
switch (etype) {
|
|
case ETHERTYPE_IP:
|
|
capture_ip(pd, offset, cap_len, ld);
|
|
break;
|
|
default:
|
|
ld->other++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
ethertype(guint16 etype, int offset,
|
|
const u_char *pd, frame_data *fd, proto_tree *tree, proto_tree
|
|
*fh_tree)
|
|
{
|
|
if (tree) {
|
|
proto_tree_add_item(fh_tree, offset - 2, 2, "Type: %s (0x%04x)",
|
|
ethertype_to_str(etype, "Unknown"), etype);
|
|
}
|
|
switch (etype) {
|
|
case ETHERTYPE_IP:
|
|
dissect_ip(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_IPv6:
|
|
dissect_ipv6(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_ARP:
|
|
dissect_arp(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_REVARP:
|
|
dissect_arp(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_ATALK:
|
|
dissect_ddp(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_AARP:
|
|
dissect_aarp(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_IPX:
|
|
dissect_ipx(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_VINES:
|
|
dissect_vines(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_CDP:
|
|
dissect_cdp(pd, offset, fd, tree);
|
|
break;
|
|
case ETHERTYPE_LOOP:
|
|
dissect_data(pd, offset, fd, tree);
|
|
if (check_col(fd, COL_PROTOCOL)) { col_add_fstr(fd, COL_PROTOCOL, "LOOP"); }
|
|
break;
|
|
default:
|
|
dissect_data(pd, offset, fd, tree);
|
|
if (check_col(fd, COL_PROTOCOL)) { col_add_fstr(fd, COL_PROTOCOL, "0x%04x", etype); }
|
|
break;
|
|
}
|
|
}
|