141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
/* packet-nbipx.c
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* Routines for NetBIOS over IPX packet disassembly
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* Gilbert Ramirez <gram@verdict.uthscsa.edu>
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*
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* $Id: packet-nbipx.c,v 1.2 1998/10/14 04:28:49 gram Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gtk/gtk.h>
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#include <pcap.h>
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#include <stdio.h>
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#include <memory.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#include "ethereal.h"
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#include "packet.h"
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#include "packet-ipx.h" /* for ipxnet_to_string() */
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/* There is no RFC or public specification of Netware or Microsoft
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* NetBIOS over IPX packets. I have had to decode the protocol myself,
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* so there are holes and perhaps errors in this code. (gram)
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*/
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struct nbipx_header {
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guint32 router[8];
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guint8 name_type;
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guint8 packet_type;
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char name[17];
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};
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void
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dissect_nbipx_ns(const u_char *pd, int offset, frame_data *fd, GtkTree *tree)
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{
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GtkWidget *nbipx_tree, *ti;
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struct nbipx_header header;
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int i, rtr_offset;
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char *packet_type[] = {
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"",
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"Name Query"
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};
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header.name_type = pd[offset+32];
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header.packet_type = pd[offset+33];
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memcpy(header.name, &pd[offset+34], 16);
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header.name[16] = 0; /* null-terminate the string */
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if (fd->win_info[COL_NUM]) {
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strcpy(fd->win_info[COL_PROTOCOL], "NetBIOS");
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switch (header.packet_type) {
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case 1:
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sprintf(fd->win_info[COL_INFO], "Name Query for %s",
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header.name);
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break;
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default:
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strcpy(fd->win_info[COL_INFO], "NetBIOS over IPX");
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}
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}
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if (tree) {
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ti = add_item_to_tree(GTK_WIDGET(tree), offset, END_OF_FRAME,
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"NetBIOS over IPX");
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nbipx_tree = gtk_tree_new();
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add_subtree(ti, nbipx_tree, ETT_NBIPX);
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if (header.packet_type <= 1) {
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add_item_to_tree(nbipx_tree, offset+33, 1,
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"Packet Type: %s (%02X)", packet_type[header.packet_type],
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header.packet_type);
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}
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else {
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add_item_to_tree(nbipx_tree, offset+33, 1,
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"Packet Type: Unknown (%02X)", header.packet_type);
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}
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/* Eight routers are listed */
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for (i = 0; i < 8; i++) {
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rtr_offset = offset + (i << 2);
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memcpy(&header.router[i], &pd[rtr_offset], 4);
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if (header.router[i] != 0) {
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add_item_to_tree(nbipx_tree, rtr_offset, 4, "IPX Network: %s",
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ipxnet_to_string((guint8*)&header.router[i]));
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}
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}
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add_item_to_tree(nbipx_tree, offset+32, 1, "Name Type: %02X",
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header.name_type);
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add_item_to_tree(nbipx_tree, offset+34, 16, "Name String: %s",
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header.name);
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}
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}
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