int
ospf_if_get_output_cost (struct ospf_interface *oi)
{
/* If all else fails, use default OSPF cost */
u_int32_t cost;
u_int32_t bw, refbw;
bw = oi->ifp->bandwidth ? oi->ifp->bandwidth : OSPF_DEFAULT_BANDWIDTH;
refbw = oi->ospf->ref_bandwidth;
/* A specifed ip ospf cost overrides a calculated one. */
if (OSPF_IF_PARAM_CONFIGURED (IF_DEF_PARAMS (oi->ifp), output_cost_cmd) ||
OSPF_IF_PARAM_CONFIGURED (oi->params, output_cost_cmd))
cost = OSPF_IF_PARAM (oi, output_cost_cmd);
/* See if a cost can be calculated from the zebra processes
interface bandwidth field. */
else
{
cost = (u_int32_t) ((double)refbw / (double)bw + (double)0.5);
if (cost < 1)
cost = 1;
else if (cost > 65535)
cost = 65535;
}
return cost;
}
void
ospf_free_if_params (struct interface_FOO *ifp, struct in_addr addr)
{
struct ospf_if_params *oip;
struct prefix_ipv4 p;
struct route_node *rn;
p.family = AF_INET;
p.prefixlen = IPV4_MAX_PREFIXLEN;
p.prefix = addr;
rn = route_node_lookup (IF_OIFS_PARAMS (ifp), (struct prefix*)&p);
if (!rn || !rn->info)
return;
oip = rn->info;
route_unlock_node (rn);
if (!OSPF_IF_PARAM_CONFIGURED (oip, output_cost_cmd) &&
!OSPF_IF_PARAM_CONFIGURED (oip, transmit_delay) &&
!OSPF_IF_PARAM_CONFIGURED (oip, retransmit_interval) &&
!OSPF_IF_PARAM_CONFIGURED (oip, passive_interface) &&
!OSPF_IF_PARAM_CONFIGURED (oip, v_hello) &&
!OSPF_IF_PARAM_CONFIGURED (oip, v_wait) &&
!OSPF_IF_PARAM_CONFIGURED (oip, priority) &&
!OSPF_IF_PARAM_CONFIGURED (oip, type) &&
!OSPF_IF_PARAM_CONFIGURED (oip, auth_simple) &&
!OSPF_IF_PARAM_CONFIGURED (oip, auth_type) &&
listcount (oip->auth_crypt) == 0)
{
ospf_del_if_params (oip);
rn->info = NULL;
route_unlock_node (rn);
}
}
/* Inteface addition message from zebra. */
static int
ospf_interface_add (int command, struct zclient *zclient, zebra_size_t length)
{
struct interface *ifp;
ifp = zebra_interface_add_read (zclient->ibuf);
if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE))
zlog_debug ("Zebra: interface add %s index %d flags %llx metric %d mtu %d",
ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
ifp->metric, ifp->mtu);
assert (ifp->info);
if (!OSPF_IF_PARAM_CONFIGURED (IF_DEF_PARAMS (ifp), type))
{
SET_IF_PARAM (IF_DEF_PARAMS (ifp), type);
IF_DEF_PARAMS (ifp)->type = ospf_default_iftype(ifp);
}
ospf_if_update (NULL, ifp);
#ifdef HAVE_SNMP
ospf_snmp_if_update (ifp);
#endif /* HAVE_SNMP */
return 0;
}
