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
|
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include "libpacketdump.h"
#ifndef WIN32
#include <netinet/in_systm.h>
#endif
#include <arpa/inet.h>
#include <netdb.h>
DLLEXPORT void decode(int link_type UNUSED,const char *packet,unsigned len)
{
libtrace_ip_t *ip = (libtrace_ip_t*)packet;
if (len>=1) {
printf(" IP: Header Len %i",ip->ip_hl*4);
printf(" Ver %i",ip->ip_v);
}
//DISPLAY(ip_tos," TOS %02x")
DISPLAY_EXP(ip, ip_tos," DSCP %02x",ip->ip_tos >> 2);
DISPLAY_EXP(ip, ip_tos," ECN %x",ip->ip_tos & 0x2);
DISPLAYS(ip, ip_len," Total Length %i");
printf("\n IP:");
DISPLAYS(ip, ip_id," Id %u");
if ((unsigned int)len >= ((char *)&ip->ip_ttl - (char *)ip - 2)) {
printf(" Fragoff %i", ntohs(ip->ip_off) & 0x1FFF);
if (ntohs(ip->ip_off) & 0x2000) printf(" MORE_FRAG");
if (ntohs(ip->ip_off) & 0x4000) printf(" DONT_FRAG");
if (ntohs(ip->ip_off) & 0x8000) printf(" RESV_FRAG");
}
//printf("\n IP:");
DISPLAY(ip, ip_ttl,"\n IP: TTL %i");
if ((unsigned int)len>=((char*)&ip->ip_p-(char*)ip+sizeof(ip->ip_p))) {
struct protoent *ent=getprotobynumber(ip->ip_p);
if (ent) {
printf(" Proto %i (%s)",ip->ip_p,ent->p_name);
}
else {
printf(" Proto %i",ip->ip_p);
}
} else {
printf("\n");
return;
}
DISPLAYS(ip, ip_sum," Checksum %i\n");
DISPLAYIP(ip, ip_src," IP: Source %s ");
DISPLAYIP(ip, ip_dst,"Destination %s\n");
decode_next(packet+ip->ip_hl*4,len-ip->ip_hl*4,"ip",ip->ip_p);
return;
}
|
