]>
The Tcpdump Group git mirrors - tcpdump/blob - print-ipx.c
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).
25 #define NETDISSECT_REWORKED
30 #include <tcpdump-stdinc.h>
34 #include "interface.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
, (u_char
*)ipx
+ 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
, (u_short
*)datap
, length
);
123 ipx_rip_print(ndo
, (u_short
*)datap
, length
);
125 case IPX_SKT_NETBIOS
:
126 ND_PRINT((ndo
, "ipx-netbios %d", length
));
127 #ifdef TCPDUMP_DO_SMB
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
));
136 #ifdef TCPDUMP_DO_SMB
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(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(htons(EXTRACT_16BITS(&ipx
[0])))));
181 if (fn_printzp(ndo
, (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]), (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
));