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 * Contributed by Brad Parker (brad@fcr.com).
24 /* \summary: Novell IPX printer */
30 #include <netdissect-stdinc.h>
34 #include "netdissect.h"
35 #include "addrtoname.h"
38 /* well-known sockets */
39 #define IPX_SKT_NCP 0x0451
40 #define IPX_SKT_SAP 0x0452
41 #define IPX_SKT_RIP 0x0453
42 #define IPX_SKT_NETBIOS 0x0455
43 #define IPX_SKT_DIAGNOSTICS 0x0456
44 #define IPX_SKT_NWLINK_DGM 0x0553 /* NWLink datagram, may contain SMB */
45 #define IPX_SKT_EIGRP 0x85be /* Cisco EIGRP over IPX */
47 /* IPX transport header */
49 uint16_t cksum; /* Checksum */
50 uint16_t length; /* Length, in bytes, including header */
51 uint8_t tCtl; /* Transport Control (i.e. hop count) */
52 uint8_t pType; /* Packet Type (i.e. level 2 protocol) */
53 uint16_t dstNet[2]; /* destination net */
54 uint8_t dstNode[6]; /* destination node */
55 uint16_t dstSkt; /* destination socket */
56 uint16_t srcNet[2]; /* source net */
57 uint8_t srcNode[6]; /* source node */
58 uint16_t srcSkt; /* source socket */
63 static const char *ipxaddr_string(uint32_t, const u_char *);
64 static void ipx_decode(netdissect_options *, const struct ipxHdr *, const u_char *, u_int);
65 static void ipx_sap_print(netdissect_options *, const u_short *, u_int);
66 static void ipx_rip_print(netdissect_options *, const u_short *, u_int);
69 * Print IPX datagram packets.
72 ipx_print(netdissect_options *ndo, const u_char *p, u_int length)
74 const struct ipxHdr *ipx = (const struct ipxHdr *)p;
77 ND_PRINT((ndo, "IPX "));
79 ND_TCHECK(ipx->srcSkt);
80 ND_PRINT((ndo, "%s.%04x > ",
81 ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),
82 EXTRACT_16BITS(&ipx->srcSkt)));
84 ND_PRINT((ndo, "%s.%04x: ",
85 ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),
86 EXTRACT_16BITS(&ipx->dstSkt)));
88 /* take length from ipx header */
89 ND_TCHECK(ipx->length);
90 length = EXTRACT_16BITS(&ipx->length);
92 ipx_decode(ndo, ipx, p + ipxSize, length - ipxSize);
95 ND_PRINT((ndo, "[|ipx %d]", length));
99 ipxaddr_string(uint32_t net, const u_char *node)
101 static char line[256];
103 snprintf(line, sizeof(line), "%08x.%02x:%02x:%02x:%02x:%02x:%02x",
104 net, node[0], node[1], node[2], node[3], node[4], node[5]);
110 ipx_decode(netdissect_options *ndo, const struct ipxHdr *ipx, const u_char *datap, u_int length)
112 register u_short dstSkt;
114 dstSkt = EXTRACT_16BITS(&ipx->dstSkt);
117 ND_PRINT((ndo, "ipx-ncp %d", length));
120 ipx_sap_print(ndo, (const u_short *)datap, length);
123 ipx_rip_print(ndo, (const u_short *)datap, length);
125 case IPX_SKT_NETBIOS:
126 ND_PRINT((ndo, "ipx-netbios %d", length));
128 ipx_netbios_print(ndo, datap, length);
131 case IPX_SKT_DIAGNOSTICS:
132 ND_PRINT((ndo, "ipx-diags %d", length));
134 case IPX_SKT_NWLINK_DGM:
135 ND_PRINT((ndo, "ipx-nwlink-dgm %d", length));
137 ipx_netbios_print(ndo, datap, length);
141 eigrp_print(ndo, datap, length);
144 ND_PRINT((ndo, "ipx-#%x %d", dstSkt, length));
150 ipx_sap_print(netdissect_options *ndo, const u_short *ipx, u_int length)
155 command = EXTRACT_16BITS(ipx);
163 ND_PRINT((ndo, "ipx-sap-req"));
165 ND_PRINT((ndo, "ipx-sap-nearest-req"));
168 ND_PRINT((ndo, " %s", ipxsap_string(ndo, htons(EXTRACT_16BITS(&ipx[0])))));
174 ND_PRINT((ndo, "ipx-sap-resp"));
176 ND_PRINT((ndo, "ipx-sap-nearest-resp"));
178 for (i = 0; i < 8 && length > 0; i++) {
180 ND_PRINT((ndo, " %s '", ipxsap_string(ndo, htons(EXTRACT_16BITS(&ipx[0])))));
181 if (fn_printzp(ndo, (const u_char *)&ipx[1], 48, ndo->ndo_snapend)) {
182 ND_PRINT((ndo, "'"));
185 ND_TCHECK2(ipx[25], 10);
186 ND_PRINT((ndo, "' addr %s",
187 ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (const u_char *)&ipx[27])));
193 ND_PRINT((ndo, "ipx-sap-?%x", command));
198 ND_PRINT((ndo, "[|ipx %d]", length));
202 ipx_rip_print(netdissect_options *ndo, const u_short *ipx, u_int length)
207 command = EXTRACT_16BITS(ipx);
213 ND_PRINT((ndo, "ipx-rip-req"));
216 ND_PRINT((ndo, " %08x/%d.%d", EXTRACT_32BITS(&ipx[0]),
217 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3])));
221 ND_PRINT((ndo, "ipx-rip-resp"));
222 for (i = 0; i < 50 && length > 0; i++) {
224 ND_PRINT((ndo, " %08x/%d.%d", EXTRACT_32BITS(&ipx[0]),
225 EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3])));
232 ND_PRINT((ndo, "ipx-rip-?%x", command));
237 ND_PRINT((ndo, "[|ipx %d]", length));