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 #define ND_LONGJMP_FROM_TCHECK
35 #include "netdissect.h"
36 #include "addrtoname.h"
39 /* well-known sockets */
40 #define IPX_SKT_NCP 0x0451
41 #define IPX_SKT_SAP 0x0452
42 #define IPX_SKT_RIP 0x0453
43 #define IPX_SKT_NETBIOS 0x0455
44 #define IPX_SKT_DIAGNOSTICS 0x0456
45 #define IPX_SKT_NWLINK_DGM 0x0553 /* NWLink datagram, may contain SMB */
46 #define IPX_SKT_EIGRP 0x85be /* Cisco EIGRP over IPX */
48 /* IPX transport header */
50 nd_uint16_t cksum; /* Checksum */
51 nd_uint16_t length; /* Length, in bytes, including header */
52 nd_uint8_t tCtl; /* Transport Control (i.e. hop count) */
53 nd_uint8_t pType; /* Packet Type (i.e. level 2 protocol) */
54 nd_uint32_t dstNet; /* destination net */
55 nd_mac_addr dstNode; /* destination node */
56 nd_uint16_t dstSkt; /* destination socket */
57 nd_uint32_t srcNet; /* source net */
58 nd_mac_addr srcNode; /* source node */
59 nd_uint16_t srcSkt; /* source socket */
64 static const char *ipxaddr_string(netdissect_options *, uint32_t, const u_char *);
65 static void ipx_decode(netdissect_options *, const struct ipxHdr *, const u_char *, u_int);
66 static void ipx_sap_print(netdissect_options *, const u_char *, u_int);
67 static void ipx_rip_print(netdissect_options *, const u_char *, u_int);
70 * Print IPX datagram packets.
73 ipx_print(netdissect_options *ndo, const u_char *p, u_int length)
75 const struct ipxHdr *ipx = (const struct ipxHdr *)p;
77 ndo->ndo_protocol = "ipx";
81 ND_PRINT("%s.%04x > ",
82 ipxaddr_string(ndo, GET_BE_U_4(ipx->srcNet), ipx->srcNode),
83 GET_BE_U_2(ipx->srcSkt));
86 ipxaddr_string(ndo, GET_BE_U_4(ipx->dstNet), ipx->dstNode),
87 GET_BE_U_2(ipx->dstSkt));
89 /* take length from ipx header */
90 length = GET_BE_U_2(ipx->length);
92 if (length < ipxSize) {
93 ND_PRINT("[length %u < %u]", length, ipxSize);
94 nd_print_invalid(ndo);
97 ipx_decode(ndo, ipx, p + ipxSize, length - ipxSize);
101 ipxaddr_string(netdissect_options *ndo, 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, GET_U_1(node), GET_U_1(node + 1),
107 GET_U_1(node + 2), GET_U_1(node + 3),
108 GET_U_1(node + 4), GET_U_1(node + 5));
114 ipx_decode(netdissect_options *ndo, const struct ipxHdr *ipx, const u_char *datap, u_int length)
118 dstSkt = GET_BE_U_2(ipx->dstSkt);
121 ND_PRINT("ipx-ncp %u", length);
124 ipx_sap_print(ndo, datap, length);
127 ipx_rip_print(ndo, datap, length);
129 case IPX_SKT_NETBIOS:
130 ND_PRINT("ipx-netbios %u", length);
132 ipx_netbios_print(ndo, datap, length);
135 case IPX_SKT_DIAGNOSTICS:
136 ND_PRINT("ipx-diags %u", length);
138 case IPX_SKT_NWLINK_DGM:
139 ND_PRINT("ipx-nwlink-dgm %u", length);
141 ipx_netbios_print(ndo, datap, length);
145 eigrp_print(ndo, datap, length);
148 ND_PRINT("ipx-#%x %u", dstSkt, length);
154 ipx_sap_print(netdissect_options *ndo, const u_char *ipx, u_int length)
158 command = GET_BE_U_2(ipx);
166 ND_PRINT("ipx-sap-req");
168 ND_PRINT("ipx-sap-nearest-req");
170 ND_PRINT(" %s", ipxsap_string(ndo, htons(GET_BE_U_2(ipx))));
176 ND_PRINT("ipx-sap-resp");
178 ND_PRINT("ipx-sap-nearest-resp");
180 for (i = 0; i < 8 && length != 0; i++) {
184 ND_PRINT(" %s '", ipxsap_string(ndo, htons(GET_BE_U_2(ipx))));
191 nd_printjnp(ndo, ipx, 48);
196 * 10 bytes of IPX address.
198 ND_TCHECK_LEN(ipx, 10);
202 ipxaddr_string(ndo, GET_BE_U_4(ipx), ipx + 4));
206 * 2 bytes of socket and 2 bytes of number of intermediate
217 ND_PRINT("ipx-sap-?%x", command);
223 nd_print_invalid(ndo);
227 ipx_rip_print(netdissect_options *ndo, const u_char *ipx, u_int length)
231 command = GET_BE_U_2(ipx);
237 ND_PRINT("ipx-rip-req");
241 ND_PRINT(" %08x/%u.%u", GET_BE_U_4(ipx),
242 GET_BE_U_2(ipx + 4), GET_BE_U_2(ipx + 6));
246 ND_PRINT("ipx-rip-resp");
247 for (i = 0; i < 50 && length != 0; i++) {
250 ND_PRINT(" %08x/%u.%u", GET_BE_U_4(ipx),
251 GET_BE_U_2(ipx + 4), GET_BE_U_2(ipx + 6));
258 ND_PRINT("ipx-rip-?%x", command);
264 nd_print_invalid(ndo);