/* put a series of object offsets/lengths from a linked list */
void util_put_ll_objs (LINKED_LIST *ll, char **cp) {
objlist_t *obj_p;
u_short _type;
char *c = *cp;
LL_Iterate (ll, obj_p) {
UTIL_PUT_NETLONG (obj_p->offset, c);
UTIL_PUT_NETLONG (obj_p->len, c);
_type = (u_short) obj_p->type;
UTIL_PUT_NETSHORT (_type, c); /* type */
}
/* ospf_send_database
*/
int ospf_send_database (ospf_neighbor_t *neighbor) {
u_char buf[1024], *cp = buf;
u_short length, checksum;
ospf_interface_t *ospf_interface = neighbor->ospf_interface;
memset (buf, 0, 1023);
UTIL_PUT_BYTE (OSPF_VERSION, cp);
UTIL_PUT_BYTE (OSPF_DATABASE_DESCRIPTION, cp);
cp += 2; /* skip length for now */
UTIL_PUT_NETLONG (OSPF.router_id, cp);
UTIL_PUT_NETLONG (ospf_interface->area->area_id, cp);
cp += 2; /* skip checksum for now */
UTIL_PUT_NETSHORT (ospf_interface->authentication_type, cp);
if (ospf_interface->authentication_type == OSPF_AUTH_NULL) {
cp += 8; /* skip authentication */
}
if (ospf_interface->authentication_type == OSPF_AUTH_PASSWORD) {
memcpy (cp, ospf_interface->password, 8);
cp += 8;
}
/* network mask */
UTIL_PUT_NETSHORT (1500, cp); /* mtu */
UTIL_PUT_BYTE (2, cp); /* options */
/* build bits */
UTIL_PUT_BYTE (neighbor->I_M_MS, cp); /* flags */
UTIL_PUT_NETLONG (neighbor->dd_seq_num, cp);
trace (NORM, OSPF.trace, "\n");
if (ospf_interface->authentication_type == OSPF_AUTH_PASSWORD)
trace (NORM, OSPF.trace, "Send OSPF Database password: %s\n",
ospf_interface->password);
trace (NORM, OSPF.trace, "Send OSPF Database seq: %d, options 0x%x, flags %s\n",
neighbor->dd_seq_num, neighbor->options,
ospf_neighbor_database_flags (neighbor->I_M_MS));
/* no LSA header for time being -- just doing exstart stuff
* right now
*/
/* go back and fill in length */
length = cp - buf;
if (length % 2 != 0) {
length++; /* pad */
}
cp = buf; cp += 2;
UTIL_PUT_SHORT (length, cp);
/* go back and checksum */
cp = buf;
checksum = in_cksum (cp, length);
cp += 12;
UTIL_PUT_NETSHORT (checksum, cp);
packet_send_wire_unicast (neighbor->prefix, buf, length);
/*packet_send_wire_multicast (OSPF_ALLSPFRouters, ospf_interface->interface,
buf, length);*/
return (1);
}