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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
#include <stdio.h>
#include <pcap.h>
#include "netdissect.h"
#include "interface.h"
#include "addrtoname.h"
#include "ipnet.h"
#ifdef DLT_IPNET
const struct tok ipnet_values[] = {
{ IPH_AF_INET, "IPv4" },
{ IPH_AF_INET6, "IPv6" },
{ 0, NULL }
};
static inline void
ipnet_hdr_print(struct netdissect_options *ndo, const u_char *bp, u_int length)
{
const ipnet_hdr_t *hdr;
hdr = (const ipnet_hdr_t *)bp;
ND_PRINT((ndo, "%d > %d", hdr->iph_zsrc, hdr->iph_zdst));
if (!ndo->ndo_qflag) {
ND_PRINT((ndo,", family %s (%d)",
tok2str(ipnet_values, "Unknown",
hdr->iph_family),
hdr->iph_family));
} else {
ND_PRINT((ndo,", %s",
tok2str(ipnet_values,
"Unknown Ethertype (0x%04x)",
hdr->iph_family)));
}
ND_PRINT((ndo, ", length %u: ", length));
}
static void
ipnet_print(struct netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
{
ipnet_hdr_t *hdr;
if (caplen < sizeof(ipnet_hdr_t)) {
ND_PRINT((ndo, "[|ipnet]"));
return;
}
if (ndo->ndo_eflag)
ipnet_hdr_print(ndo, p, length);
length -= sizeof(ipnet_hdr_t);
caplen -= sizeof(ipnet_hdr_t);
hdr = (ipnet_hdr_t *)p;
p += sizeof(ipnet_hdr_t);
switch (hdr->iph_family) {
case IPH_AF_INET:
ip_print(ndo, p, length);
break;
#ifdef INET6
case IPH_AF_INET6:
ip6_print(ndo, p, length);
break;
#endif /*INET6*/
default:
if (!ndo->ndo_eflag)
ipnet_hdr_print(ndo, (u_char *)hdr,
length + sizeof(ipnet_hdr_t));
if (!ndo->ndo_suppress_default_print)
ndo->ndo_default_print(ndo, p, caplen);
break;
}
}
/*
* This is the top level routine of the printer. 'p' points
* to the ether header of the packet, 'h->ts' is the timestamp,
* 'h->len' is the length of the packet off the wire, and 'h->caplen'
* is the number of bytes actually captured.
*/
u_int
ipnet_if_print(struct netdissect_options *ndo,
const struct pcap_pkthdr *h, const u_char *p)
{
ipnet_print(ndo, p, h->len, h->caplen);
return (sizeof(ipnet_hdr_t));
}
/*
* Local Variables:
* c-style: whitesmith
* c-basic-offset: 8
* End:
*/
#endif /* DLT_IPNET */
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