source: libpacketdump/ip_89.c @ e224862

#include <stdio.h>
#include <inttypes.h>
#include <dlfcn.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#include "libpacketdump.h"

static void dump_ospf_v2_header(libtrace_ospf_v2_t *hdr, unsigned len) {

        printf(" OSPF Header: Version %u Type %u ",
                        hdr->ospf_v, hdr->type);
        switch(hdr->type) {
                case TRACE_OSPF_HELLO:
                        printf("(Hello)");
                        break;
                case TRACE_OSPF_DATADESC:
                        printf("(Database Desc)");
                        break;
                case TRACE_OSPF_LSREQ:
                        printf("(Link State Request)");
                        break;
                case TRACE_OSPF_LSUPDATE:
                        printf("(Link State Update)");
                        break;
                case TRACE_OSPF_LSACK:
                        printf("(Link State Ack.)");
                        break;
        }

        printf("\n OSPF Header: Length %u \n", ntohs(hdr->len));
        printf(" OSPF Header: Router Id %s ", inet_ntoa(hdr->router));
        printf("Area Id %s\n", inet_ntoa(hdr->area));
        printf(" OSPF Header: Checksum %u Auth Type %u\n", ntohs(hdr->sum),
                        ntohs(hdr->au_type));

        printf(" OSPF Header: Auth Key ID %u Auth Data Len %u\n", 
                        hdr->au_key_id, hdr->au_data_len);
        printf(" OSPF Header: Auth Crypto Seq %u\n", ntohl(hdr->au_seq_num));


}

DLLEXPORT void decode(int link_type UNUSED, const char *packet, unsigned len) {

        libtrace_ospf_v2_t *hdr = (libtrace_ospf_v2_t *)packet;

        if (hdr->ospf_v == 2) {
                dump_ospf_v2_header(hdr, len);
                decode_next(packet + sizeof(libtrace_ospf_v2_t), 
                        len - sizeof(libtrace_ospf_v2_t), "ospf2", 
                        hdr->type);
        }

        return;

}