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/*
* netsniff-ng - the packet sniffing beast
* Copyright 2009, 2010 Daniel Borkmann.
* Copyright 2010 Emmanuel Roullit.
* Subject to the GPL, version 2.
*/
#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h> /* for ntohs() */
#include <arpa/inet.h> /* for inet_ntop() */
#include "proto.h"
#include "dissector_eth.h"
#include "ipv6.h"
#include "geoip.h"
#include "pkt_buff.h"
extern void ipv6(struct pkt_buff *pkt);
extern void ipv6_less(struct pkt_buff *pkt);
void ipv6(struct pkt_buff *pkt)
{
uint8_t traffic_class;
uint32_t flow_label;
char src_ip[INET6_ADDRSTRLEN];
char dst_ip[INET6_ADDRSTRLEN];
struct ipv6hdr *ip = (struct ipv6hdr *) pkt_pull(pkt, sizeof(*ip));
struct sockaddr_in6 sas, sad;
char *city, *region;
const char *country;
if (ip == NULL)
return;
traffic_class = (ip->priority << 4) |
((ip->flow_lbl[0] & 0xF0) >> 4);
flow_label = ((ip->flow_lbl[0] & 0x0F) << 8) |
(ip->flow_lbl[1] << 4) | ip->flow_lbl[2];
inet_ntop(AF_INET6, &ip->saddr, src_ip, sizeof(src_ip));
inet_ntop(AF_INET6, &ip->daddr, dst_ip, sizeof(dst_ip));
tprintf(" [ IPv6 ");
tprintf("Addr (%s => %s), ", src_ip, dst_ip);
tprintf("Version (%u), ", ip->version);
tprintf("TrafficClass (%u), ", traffic_class);
tprintf("FlowLabel (%u), ", flow_label);
tprintf("Len (%u), ", ntohs(ip->payload_len));
tprintf("NextHdr (%u), ", ip->nexthdr);
tprintf("HopLimit (%u)", ip->hop_limit);
tprintf(" ]\n");
memset(&sas, 0, sizeof(sas));
sas.sin6_family = PF_INET6;
memcpy(&sas.sin6_addr, &ip->saddr, sizeof(ip->saddr));
memset(&sad, 0, sizeof(sad));
sad.sin6_family = PF_INET6;
memcpy(&sad.sin6_addr, &ip->daddr, sizeof(ip->daddr));
if (geoip_working()) {
tprintf("\t[ Geo (");
if ((country = geoip6_country_name(&sas))) {
tprintf("%s", country);
if ((region = geoip6_region_name(&sas))) {
tprintf(" / %s", region);
xfree(region);
}
if ((city = geoip6_city_name(&sas))) {
tprintf(" / %s", city);
xfree(city);
}
} else {
tprintf("local");
}
tprintf(" => ");
if ((country = geoip6_country_name(&sad))) {
tprintf("%s", country);
if ((region = geoip6_region_name(&sad))) {
tprintf(" / %s", region);
xfree(region);
}
if ((city = geoip6_city_name(&sad))) {
tprintf(" / %s", city);
xfree(city);
}
} else {
tprintf("local");
}
tprintf(") ]\n");
}
pkt_set_dissector(pkt, ð_lay3, ip->nexthdr);
}
void ipv6_less(struct pkt_buff *pkt)
{
char src_ip[INET6_ADDRSTRLEN];
char dst_ip[INET6_ADDRSTRLEN];
struct ipv6hdr *ip = (struct ipv6hdr *) pkt_pull(pkt, sizeof(*ip));
if (ip == NULL)
return;
inet_ntop(AF_INET6, &ip->saddr, src_ip, sizeof(src_ip));
inet_ntop(AF_INET6, &ip->daddr, dst_ip, sizeof(dst_ip));
tprintf(" %s/%s Len %u", src_ip, dst_ip,
ntohs(ip->payload_len));
pkt_set_dissector(pkt, ð_lay3, ip->nexthdr);
}
struct protocol ipv6_ops = {
.key = 0x86DD,
.print_full = ipv6,
.print_less = ipv6_less,
};
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