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#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <arpa/inet.h>
#include "libpacketdump.h"
DLLEXPORT void decode(int link_type UNUSED,const char *packet,unsigned len) {
libtrace_ospf_ls_update_t *update = (libtrace_ospf_ls_update_t *)packet;
unsigned char *lsa_ptr;
uint8_t lsa_type;
libtrace_ospf_lsa_v2_t *lsa_hdr;
unsigned char *lsa_body;
int i = 0;
int max_lsas = 0;
uint32_t rem = len;
uint16_t lsa_length;
if (len < 4)
return;
max_lsas = ntohl(update->ls_num_adv);
printf(" OSPF LS Update: LSAs %u\n", max_lsas);
lsa_ptr = trace_get_first_ospf_lsa_from_update_v2(update, &rem);
if (lsa_ptr == NULL || rem == 0)
return;
while (trace_get_next_ospf_lsa_v2(&lsa_ptr, &lsa_hdr, &lsa_body,
&rem, &lsa_type, &lsa_length) > 0) {
i ++;
if (lsa_hdr) {
decode_next((char *)lsa_hdr, lsa_length, "ospf2", 1000);
}
if (lsa_body) {
decode_next((char *)lsa_body, lsa_length -
sizeof(libtrace_ospf_lsa_v2_t),
"ospf2",
1000 + lsa_type);
}
if (i == max_lsas)
break;
}
}
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