2 * Copyright (c) 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
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
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.
21 * Format and print Novell IPX packets.
22 * Contributed by Brad Parker (brad@fcr.com).
27 #define NETDISSECT_REWORKED
32 #include <tcpdump-stdinc.h>
36 #include "interface.h"
37 #include "addrtoname.h"
40 /* well-known sockets */
41 #define IPX_SKT_NCP 0x0451
42 #define IPX_SKT_SAP 0x0452
43 #define IPX_SKT_RIP 0x0453
44 #define IPX_SKT_NETBIOS 0x0455
45 #define IPX_SKT_DIAGNOSTICS 0x0456
46 #define IPX_SKT_NWLINK_DGM 0x0553 /* NWLink datagram, may contain SMB */
47 #define IPX_SKT_EIGRP 0x85be /* Cisco EIGRP over IPX */
49 /* IPX transport header */
51 uint16_t cksum; /* Checksum */
52 uint16_t length; /* Length, in bytes, including header */
53 uint8_t tCtl; /* Transport Control (i.e. hop count) */
54 uint8_t pType; /* Packet Type (i.e. level 2 protocol) */
55 uint16_t dstNet[2]; /* destination net */
56 uint8_t dstNode[6]; /* destination node */
57 uint16_t dstSkt; /* destination socket */
58 uint16_t srcNet[2]; /* source net */
59 uint8_t srcNode[6]; /* source node */
60 uint16_t srcSkt; /* source socket */
65 static const char *ipxaddr_string(uint32_t, const u_char *);
66 static void ipx_decode(netdissect_options *, const struct ipxHdr *, const u_char *, u_int);
67 static void ipx_sap_print(netdissect_options *, const u_short *, u_int);
68 static void ipx_rip_print(netdissect_options *, const u_short *, u_int);
71 * Print IPX datagram packets.
74 ipx_print(netdissect_options *ndo, const u_char *p, u_int length)
76 const struct ipxHdr *ipx = (const struct ipxHdr *)p;
79 ND_PRINT((ndo, "IPX "));
81 ND_TCHECK(ipx->srcSkt);
82 ND_PRINT((ndo, "%s.%04x > ",
83 ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),
84 EXTRACT_16BITS(&ipx->srcSkt)));
86 ND_PRINT((ndo, "%s.%04x: ",
87 ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),
88 EXTRACT_16BITS(&ipx->dstSkt)));
90 /* take length from ipx header */
91 ND_TCHECK(ipx->length);
92 length = EXTRACT_16BITS(&ipx->length);
94 ipx_decode(ndo, ipx, (u_char *)ipx + ipxSize, length - ipxSize);
97 ND_PRINT((ndo, "[|ipx %d]", length));
101 ipxaddr_string(uint32_t net, const u_char *node)
103 static char line[256];
105 snprintf(line, sizeof(line), "%08x.%02x:%02x:%02x:%02x:%02x:%02x",
106 net, node[0], node[1], node[2], node[3], node[4], node[5]);
112 ipx_decode(netdissect_options *ndo, const struct ipxHdr *ipx, const u_char *datap, u_int length)
114 register u_short dstSkt;
116 dstSkt = EXTRACT_16BITS(&ipx->dstSkt);
119 ND_PRINT((ndo, "ipx-ncp %d", length));
122 ipx_sap_print(ndo, (u_short *)datap, length);
125 ipx_rip_print(ndo, (u_short *)datap, length);
127 case IPX_SKT_NETBIOS:
128 ND_PRINT((ndo, "ipx-netbios %d", length));
129 #ifdef TCPDUMP_DO_SMB
130 ipx_netbios_print(ndo, datap, length);
133 case IPX_SKT_DIAGNOSTICS:
134 ND_PRINT((ndo, "ipx-diags %d", length));
136 case IPX_SKT_NWLINK_DGM:
137 ND_PRINT((ndo, "ipx-nwlink-dgm %d", length));
138 #ifdef TCPDUMP_DO_SMB
139 ipx_netbios_print(ndo, datap, length);
143 eigrp_print(ndo, datap, length);
146 ND_PRINT((ndo, "ipx-#%x %d", dstSkt, length));
152 ipx_sap_print(netdissect_options *ndo, const u_short *ipx, u_int length)
157 command = EXTRACT_16BITS(ipx);
165 ND_PRINT((ndo, "ipx-sap-req"));
167 ND_PRINT((ndo, "ipx-sap-nearest-req"));
170 ND_PRINT((ndo, " %s", ipxsap_string(htons(EXTRACT_16BITS(&ipx[0])))));
176 ND_PRINT((ndo, "ipx-sap-resp"));
178 ND_PRINT((ndo, "ipx-sap-nearest-resp"));
180 for (i = 0; i < 8 && length > 0; i++) {
182 ND_PRINT((ndo, " %s '", ipxsap_string(htons(EXTRACT_16BITS(&ipx[0])))));
183 if (fn_printzp(ndo, (u_char *)&ipx[1], 48, ndo->ndo_snapend)) {
184 ND_PRINT((ndo, "'"));
187 ND_TCHECK2(ipx[25], 10);
188 ND_PRINT((ndo, "' addr %s",
189 ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (u_char *)&ipx[27])));
195 ND_PRINT((ndo, "ipx-sap-?%x", command));
200 ND_PRINT((ndo, "[|ipx %d]", length));
204 ipx_rip_print(netdissect_options *ndo, const u_short *ipx, u_int length)
209 command = EXTRACT_16BITS(ipx);
215 ND_PRINT((ndo, "ipx-rip-req"));
218 ND_PRINT((ndo, " %08x/%d.%d", EXTRACT_32BITS(&ipx[0]),
219 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3])));
223 ND_PRINT((ndo, "ipx-rip-resp"));
224 for (i = 0; i < 50 && length > 0; i++) {
226 ND_PRINT((ndo, " %08x/%d.%d", EXTRACT_32BITS(&ipx[0]),
227 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3])));
234 ND_PRINT((ndo, "ipx-rip-?%x", command));
239 ND_PRINT((ndo, "[|ipx %d]", length));