print-ipx.c revision 17692 
1/*
2 * Copyright (c) 1994, 1995, 1996
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 */
21
22/*
23 * Format and print Novell IPX packets.
24 * Contributed by Brad Parker (brad@fcr.com).
25 */
26#ifndef lint
27static  char rcsid[] =
28    "@(#)$Header: print-ipx.c,v 1.16 96/07/23 14:17:24 leres Exp $";
29#endif
30
31#include <sys/param.h>
32#include <sys/time.h>
33#include <sys/socket.h>
34
35#include <netinet/in.h>
36#include <netinet/in_systm.h>
37#include <netinet/ip.h>
38#include <netinet/ip_var.h>
39#include <netinet/udp.h>
40#include <netinet/udp_var.h>
41#include <netinet/tcp.h>
42#include <netinet/tcpip.h>
43
44#ifdef __STDC__
45#include <stdlib.h>
46#endif
47#include <stdio.h>
48#include <string.h>
49
50#include "interface.h"
51#include "addrtoname.h"
52#include "ipx.h"
53#include "extract.h"
54
55
56static const char *ipxaddr_string(u_int32_t, const u_char *);
57void ipx_decode(const struct ipxHdr *, const u_char *, u_int);
58void ipx_sap_print(const u_short *, u_int);
59void ipx_rip_print(const u_short *, u_int);
60
61/*
62 * Print IPX datagram packets.
63 */
64void
65ipx_print(const u_char *p, u_int length)
66{
67	const struct ipxHdr *ipx = (const struct ipxHdr *)p;
68
69	TCHECK(ipx->srcSkt);
70	(void)printf("%s.%x > ",
71		     ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),
72		     EXTRACT_16BITS(&ipx->srcSkt));
73
74	(void)printf("%s.%x:",
75		     ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),
76		     EXTRACT_16BITS(&ipx->dstSkt));
77
78	/* take length from ipx header */
79	TCHECK(ipx->length);
80	length = EXTRACT_16BITS(&ipx->length);
81
82	ipx_decode(ipx, (u_char *)ipx + ipxSize, length - ipxSize);
83	return;
84trunc:
85	printf("[|ipx %d]", length);
86}
87
88static const char *
89ipxaddr_string(u_int32_t net, const u_char *node)
90{
91    static char line[256];
92
93    sprintf(line, "%x.%02x:%02x:%02x:%02x:%02x:%02x",
94	    net, node[0], node[1], node[2], node[3], node[4], node[5]);
95
96    return line;
97}
98
99void
100ipx_decode(const struct ipxHdr *ipx, const u_char *datap, u_int length)
101{
102    register u_short dstSkt;
103
104    dstSkt = EXTRACT_16BITS(&ipx->dstSkt);
105    switch (dstSkt) {
106      case IPX_SKT_NCP:
107	(void)printf(" ipx-ncp %d", length);
108	break;
109      case IPX_SKT_SAP:
110	ipx_sap_print((u_short *)datap, length);
111	break;
112      case IPX_SKT_RIP:
113	ipx_rip_print((u_short *)datap, length);
114	break;
115      case IPX_SKT_NETBIOS:
116	(void)printf(" ipx-netbios %d", length);
117	break;
118      case IPX_SKT_DIAGNOSTICS:
119	(void)printf(" ipx-diags %d", length);
120	break;
121      default:
122	(void)printf(" ipx-#%x %d", dstSkt, length);
123	break;
124    }
125}
126
127void
128ipx_sap_print(const u_short *ipx, u_int length)
129{
130    int command, i;
131
132    TCHECK(ipx[0]);
133    command = EXTRACT_16BITS(ipx);
134    ipx++;
135    length -= 2;
136
137    switch (command) {
138      case 1:
139      case 3:
140	if (command == 1)
141	    (void)printf("ipx-sap-req");
142	else
143	    (void)printf("ipx-sap-nearest-req");
144
145	if (length > 0) {
146	    TCHECK(ipx[1]);
147	    (void)printf(" %x '", EXTRACT_16BITS(&ipx[0]));
148	    fn_print((char *)&ipx[1], (char *)&ipx[1] + 48);
149	    putchar('\'');
150	}
151	break;
152
153      case 2:
154      case 4:
155	if (command == 2)
156	    (void)printf("ipx-sap-resp");
157	else
158	    (void)printf("ipx-sap-nearest-resp");
159
160	for (i = 0; i < 8 && length > 0; i++) {
161	    TCHECK2(ipx[27], 1);
162	    (void)printf(" %x '", EXTRACT_16BITS(&ipx[0]));
163	    fn_print((char *)&ipx[1], (char *)&ipx[1] + 48);
164	    printf("' addr %s",
165		ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (u_char *)&ipx[27]));
166	    ipx += 32;
167	    length -= 64;
168	}
169	break;
170      default:
171	    (void)printf("ipx-sap-?%x", command);
172	break;
173    }
174	return;
175trunc:
176	printf("[|ipx %d]", length);
177}
178
179void
180ipx_rip_print(const u_short *ipx, u_int length)
181{
182    int command, i;
183
184    TCHECK(ipx[0]);
185    command = EXTRACT_16BITS(ipx);
186    ipx++;
187    length -= 2;
188
189    switch (command) {
190      case 1:
191	(void)printf("ipx-rip-req");
192	if (length > 0) {
193	    TCHECK(ipx[3]);
194	    (void)printf(" %x/%d.%d", EXTRACT_32BITS(&ipx[0]),
195			 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));
196	}
197	break;
198      case 2:
199	(void)printf("ipx-rip-resp");
200	for (i = 0; i < 50 && length > 0; i++) {
201	    TCHECK(ipx[3]);
202	    (void)printf(" %x/%d.%d", EXTRACT_32BITS(&ipx[0]),
203			 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));
204
205	    ipx += 4;
206	    length -= 8;
207	}
208	break;
209      default:
210	    (void)printf("ipx-rip-?%x", command);
211    }
212	return;
213trunc:
214	printf("[|ipx %d]", length);
215}
216
217