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/* $OpenBSD: print-ipx.c,v 1.7 2000/10/03 14:31:57 ho Exp $ */
/*
* Copyright (c) 1994, 1995, 1996
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Format and print Novell IPX packets.
* Contributed by Brad Parker (brad@fcr.com).
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /cvs/OpenBSD/src/usr.sbin/tcpdump/print-ipx.c,v 1.7 2000/10/03 14:31:57 ho Exp $";
#endif
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
#ifdef __STDC__
#include <stdlib.h>
#endif
#include <stdio.h>
#include <string.h>
#include "interface.h"
#include "addrtoname.h"
#include "ipx.h"
#include "extract.h"
static const char *ipxaddr_string(u_int32_t, const u_char *);
void ipx_decode(const struct ipxHdr *, const u_char *, u_int);
void ipx_sap_print(const u_short *, u_int);
void ipx_rip_print(const u_short *, u_int);
/*
* Print IPX datagram packets.
*/
void
ipx_print(const u_char *p, u_int length)
{
const struct ipxHdr *ipx = (const struct ipxHdr *)p;
TCHECK(ipx->srcSkt);
(void)printf("%s.%x > ",
ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),
EXTRACT_16BITS(&ipx->srcSkt));
(void)printf("%s.%x:",
ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),
EXTRACT_16BITS(&ipx->dstSkt));
/* take length from ipx header */
TCHECK(ipx->length);
length = EXTRACT_16BITS(&ipx->length);
ipx_decode(ipx, (u_char *)ipx + ipxSize, length - ipxSize);
return;
trunc:
printf("[|ipx %d]", length);
}
static const char *
ipxaddr_string(u_int32_t net, const u_char *node)
{
static char line[256];
sprintf(line, "%x.%02x:%02x:%02x:%02x:%02x:%02x",
net, node[0], node[1], node[2], node[3], node[4], node[5]);
return line;
}
void
ipx_decode(const struct ipxHdr *ipx, const u_char *datap, u_int length)
{
register u_short dstSkt;
dstSkt = EXTRACT_16BITS(&ipx->dstSkt);
switch (dstSkt) {
case IPX_SKT_NCP:
(void)printf(" ipx-ncp %d", length);
break;
case IPX_SKT_SAP:
ipx_sap_print((u_short *)datap, length);
break;
case IPX_SKT_RIP:
ipx_rip_print((u_short *)datap, length);
break;
case IPX_SKT_NETBIOS:
(void)printf(" ipx-netbios %d", length);
break;
case IPX_SKT_DIAGNOSTICS:
(void)printf(" ipx-diags %d", length);
break;
default:
(void)printf(" ipx-#%x %d", dstSkt, length);
break;
}
}
void
ipx_sap_print(const u_short *ipx, u_int length)
{
int command, i;
TCHECK(ipx[0]);
command = EXTRACT_16BITS(ipx);
ipx++;
length -= 2;
switch (command) {
case 1:
case 3:
if (command == 1)
(void)printf("ipx-sap-req");
else
(void)printf("ipx-sap-nearest-req");
if (length > 0) {
TCHECK(ipx[1]);
(void)printf(" %x '", EXTRACT_16BITS(&ipx[0]));
fn_print((u_char *)&ipx[1], (u_char *)&ipx[1] + 48);
putchar('\'');
}
break;
case 2:
case 4:
if (command == 2)
(void)printf("ipx-sap-resp");
else
(void)printf("ipx-sap-nearest-resp");
for (i = 0; i < 8 && length > 0; i++) {
TCHECK2(ipx[27], 1);
(void)printf(" %x '", EXTRACT_16BITS(&ipx[0]));
fn_print((u_char *)&ipx[1], (u_char *)&ipx[1] + 48);
printf("' addr %s",
ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (u_char *)&ipx[27]));
ipx += 32;
length -= 64;
}
break;
default:
(void)printf("ipx-sap-?%x", command);
break;
}
return;
trunc:
printf("[|ipx %d]", length);
}
void
ipx_rip_print(const u_short *ipx, u_int length)
{
int command, i;
TCHECK(ipx[0]);
command = EXTRACT_16BITS(ipx);
ipx++;
length -= 2;
switch (command) {
case 1:
(void)printf("ipx-rip-req");
if (length > 0) {
TCHECK(ipx[3]);
(void)printf(" %u/%d.%d", EXTRACT_32BITS(&ipx[0]),
EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));
}
break;
case 2:
(void)printf("ipx-rip-resp");
for (i = 0; i < 50 && length > 0; i++) {
TCHECK(ipx[3]);
(void)printf(" %u/%d.%d", EXTRACT_32BITS(&ipx[0]),
EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));
ipx += 4;
length -= 8;
}
break;
default:
(void)printf("ipx-rip-?%x", command);
}
return;
trunc:
printf("[|ipx %d]", length);
}
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