1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/* $OpenBSD: print-ipx.c,v 1.11 2007/10/07 16:41:05 deraadt Exp $ */
/*
* Copyright (c) 1994, 1995, 1996
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Format and print Novell IPX packets.
* Contributed by Brad Parker (brad@fcr.com).
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Id: print-ipx.c,v 1.11 2007/10/07 16:41:05 deraadt Exp $";
#endif
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "interface.h"
#include "addrtoname.h"
#include "ipx.h"
#include "extract.h"
static const char *ipxaddr_string(u_int32_t, const u_char *);
void ipx_decode(const struct ipxHdr *, const u_char *, u_int);
void ipx_sap_print(const u_short *, u_int);
void ipx_rip_print(const u_short *, u_int);
/*
* Print IPX datagram packets.
*/
void
ipx_print(const u_char *p, u_int length)
{
const struct ipxHdr *ipx = (const struct ipxHdr *)p;
TCHECK(ipx->srcSkt);
(void)printf("%s.%x > ",
ipxaddr_string(EXTRACT_32BITS(ipx->srcNet), ipx->srcNode),
EXTRACT_16BITS(&ipx->srcSkt));
(void)printf("%s.%x:",
ipxaddr_string(EXTRACT_32BITS(ipx->dstNet), ipx->dstNode),
EXTRACT_16BITS(&ipx->dstSkt));
/* take length from ipx header */
TCHECK(ipx->length);
length = EXTRACT_16BITS(&ipx->length);
ipx_decode(ipx, (u_char *)ipx + ipxSize, length - ipxSize);
return;
trunc:
printf("[|ipx %d]", length);
}
static const char *
ipxaddr_string(u_int32_t net, const u_char *node)
{
static char line[256];
snprintf(line, sizeof(line), "%x.%02x:%02x:%02x:%02x:%02x:%02x",
net, node[0], node[1], node[2], node[3], node[4], node[5]);
return line;
}
void
ipx_decode(const struct ipxHdr *ipx, const u_char *datap, u_int length)
{
register u_short dstSkt;
dstSkt = EXTRACT_16BITS(&ipx->dstSkt);
switch (dstSkt) {
case IPX_SKT_NCP:
(void)printf(" ipx-ncp %d", length);
break;
case IPX_SKT_SAP:
ipx_sap_print((u_short *)datap, length);
break;
case IPX_SKT_RIP:
ipx_rip_print((u_short *)datap, length);
break;
case IPX_SKT_NETBIOS:
(void)printf(" ipx-netbios %d", length);
break;
case IPX_SKT_DIAGNOSTICS:
(void)printf(" ipx-diags %d", length);
break;
default:
(void)printf(" ipx-#%x %d", dstSkt, length);
break;
}
}
void
ipx_sap_print(const u_short *ipx, u_int length)
{
int command, i;
TCHECK(ipx[0]);
command = EXTRACT_16BITS(ipx);
ipx++;
length -= 2;
switch (command) {
case 1:
case 3:
if (command == 1)
(void)printf("ipx-sap-req");
else
(void)printf("ipx-sap-nearest-req");
if (length > 0) {
TCHECK(ipx[1]);
(void)printf(" %x '", EXTRACT_16BITS(&ipx[0]));
fn_print((u_char *)&ipx[1], min(snapend, (u_char *)&ipx[1] + 48));
putchar('\'');
}
break;
case 2:
case 4:
if (command == 2)
(void)printf("ipx-sap-resp");
else
(void)printf("ipx-sap-nearest-resp");
for (i = 0; i < 8 && length > 0; i++) {
TCHECK2(ipx[27], 1);
(void)printf(" %x '", EXTRACT_16BITS(&ipx[0]));
fn_print((u_char *)&ipx[1], min(snapend, (u_char *)&ipx[1] + 48));
printf("' addr %s",
ipxaddr_string(EXTRACT_32BITS(&ipx[25]), (u_char *)&ipx[27]));
ipx += 32;
length -= 64;
}
break;
default:
(void)printf("ipx-sap-?%x", command);
break;
}
return;
trunc:
printf("[|ipx %d]", length);
}
void
ipx_rip_print(const u_short *ipx, u_int length)
{
int command, i;
TCHECK(ipx[0]);
command = EXTRACT_16BITS(ipx);
ipx++;
length -= 2;
switch (command) {
case 1:
(void)printf("ipx-rip-req");
if (length > 0) {
TCHECK(ipx[3]);
(void)printf(" %u/%d.%d", EXTRACT_32BITS(&ipx[0]),
EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));
}
break;
case 2:
(void)printf("ipx-rip-resp");
for (i = 0; i < 50 && length > 0; i++) {
TCHECK(ipx[3]);
(void)printf(" %u/%d.%d", EXTRACT_32BITS(&ipx[0]),
EXTRACT_16BITS(&ipx[2]), EXTRACT_16BITS(&ipx[3]));
ipx += 4;
length -= 8;
}
break;
default:
(void)printf("ipx-rip-?%x", command);
}
return;
trunc:
printf("[|ipx %d]", length);
}
|
