1 |
|
|
/* $OpenBSD: print-udpencap.c,v 1.5 2009/10/27 23:59:57 deraadt Exp $ */ |
2 |
|
|
|
3 |
|
|
/* |
4 |
|
|
* Copyright (c) 2003 Markus Friedl. All rights reserved. |
5 |
|
|
* |
6 |
|
|
* Redistribution and use in source and binary forms, with or without |
7 |
|
|
* modification, are permitted provided that the following conditions |
8 |
|
|
* are met: |
9 |
|
|
* 1. Redistributions of source code must retain the above copyright |
10 |
|
|
* notice, this list of conditions and the following disclaimer. |
11 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
12 |
|
|
* notice, this list of conditions and the following disclaimer in the |
13 |
|
|
* documentation and/or other materials provided with the distribution. |
14 |
|
|
* |
15 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
16 |
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
17 |
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
18 |
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
19 |
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
20 |
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
21 |
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
22 |
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 |
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
24 |
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 |
|
|
*/ |
26 |
|
|
|
27 |
|
|
#include <sys/types.h> |
28 |
|
|
#include <stdio.h> |
29 |
|
|
|
30 |
|
|
#include "interface.h" |
31 |
|
|
|
32 |
|
|
void |
33 |
|
|
udpencap_print(const u_char *bp, u_int len, const u_char *bp2) |
34 |
|
|
{ |
35 |
|
|
u_int32_t *spi; |
36 |
|
|
|
37 |
|
|
/* Recognize NAT-T Keepalive msgs. (draft-ietf-ipsec-udp-encaps-nn) */ |
38 |
|
|
if (len == 1 && *bp == 0xFF) { |
39 |
|
|
if (vflag) |
40 |
|
|
fputs(" ", stdout); |
41 |
|
|
fputs("NAT-T Keepalive", stdout); |
42 |
|
|
return; |
43 |
|
|
} |
44 |
|
|
|
45 |
|
|
if (len < sizeof(u_int32_t)) { |
46 |
|
|
fputs(" [|udpencap]", stdout); |
47 |
|
|
return; |
48 |
|
|
} |
49 |
|
|
if (vflag) |
50 |
|
|
fputs(" ", stdout); |
51 |
|
|
fputs("udpencap:", stdout); |
52 |
|
|
spi = (u_int32_t *)(bp); |
53 |
|
|
if (*spi == 0) |
54 |
|
|
ike_print(bp + sizeof(u_int32_t), len - sizeof(u_int32_t)); |
55 |
|
|
else { |
56 |
|
|
fputs(" ", stdout); |
57 |
|
|
esp_print(bp, len, bp2); |
58 |
|
|
} |
59 |
|
|
} |