blob: 8dabdb348c3ef0e1e0d7f77a1d6010d71a47d35b (
plain)
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
|
/*
* netsniff-ng - the packet sniffing beast
* Copyright 2012 Markus Amend <markus@netsniff-ng.org>, Deutsche Flugsicherung GmbH
* Subject to the GPL, version 2.
*
* Encapsulating Security Payload described in RFC4303
*/
#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h> /* for ntohs() */
#include "proto.h"
#include "dissector_eth.h"
#include "built_in.h"
#include "pkt_buff.h"
struct esp_hdr {
uint32_t h_spi;
uint32_t h_sn;
} __packed;
static void esp(struct pkt_buff *pkt)
{
struct esp_hdr *esp_ops;
esp_ops = (struct esp_hdr *) pkt_pull(pkt, sizeof(*esp_ops));
if (esp_ops == NULL)
return;
tprintf(" [ ESP ");
tprintf("SPI (0x%x), ", ntohl(esp_ops->h_spi));
tprintf("SN (0x%x)", ntohl(esp_ops->h_sn));
tprintf(" ]\n");
}
static void esp_less(struct pkt_buff *pkt)
{
struct esp_hdr *esp_ops;
esp_ops = (struct esp_hdr *) pkt_pull(pkt, sizeof(*esp_ops));
if (esp_ops == NULL)
return;
tprintf(" ESP");
}
struct protocol ip_esp_ops = {
.key = 0x32,
.print_full = esp,
.print_less = esp_less,
};
|
