#include "eigrpd/eigrp_topology.h"
#include "eigrpd/eigrp_fsm.h"
#include "eigrpd/eigrp_memory.h"
+#include "eigrpd/eigrp_errors.h"
void eigrp_send_reply(struct eigrp_neighbor *nbr, struct eigrp_prefix_entry *pe)
{
struct eigrp_packet *ep;
- u_int16_t length = EIGRP_HEADER_LEN;
+ uint16_t length = EIGRP_HEADER_LEN;
struct eigrp_interface *ei = nbr->ei;
struct eigrp *eigrp = ei->eigrp;
struct eigrp_prefix_entry *pe2;
sizeof(struct eigrp_prefix_entry));
memcpy(pe2, pe, sizeof(struct eigrp_prefix_entry));
- if (eigrp_update_prefix_apply(eigrp, ei,
- EIGRP_FILTER_OUT,
+ if (eigrp_update_prefix_apply(eigrp, ei, EIGRP_FILTER_OUT,
pe2->destination)) {
zlog_info("REPLY SEND: Setting Metric to max");
pe2->reported_metric.delay = EIGRP_MAX_METRIC;
-
}
/*
* End of filtering
*/
- ep = eigrp_packet_new(ei->ifp->mtu, nbr);
+ ep = eigrp_packet_new(EIGRP_PACKET_MTU(ei->ifp->mtu), nbr);
/* Prepare EIGRP INIT UPDATE header */
eigrp_packet_header_init(EIGRP_OPC_REPLY, eigrp, ep->s, 0,
struct eigrp_neighbor *nbr;
struct TLV_IPv4_Internal_type *tlv;
- u_int16_t type;
+ uint16_t type;
/* increment statistics. */
ei->reply_in++;
while (s->endp > s->getp) {
type = stream_getw(s);
- if (type == EIGRP_TLV_IPv4_INT) {
- struct prefix dest_addr;
-
- stream_set_getp(s, s->getp - sizeof(u_int16_t));
-
- tlv = eigrp_read_ipv4_tlv(s);
-
- dest_addr.family = AF_INET;
- dest_addr.u.prefix4 = tlv->destination;
- dest_addr.prefixlen = tlv->prefix_length;
- struct eigrp_prefix_entry *dest =
- eigrp_topology_table_lookup_ipv4(
- eigrp->topology_table, &dest_addr);
- /*
- * Destination must exists
- */
- assert(dest);
-
- struct eigrp_fsm_action_message msg;
- struct eigrp_nexthop_entry *entry =
- eigrp_prefix_entry_lookup(dest->entries, nbr);
-
- if (eigrp_update_prefix_apply(eigrp, ei,
- EIGRP_FILTER_IN,
- &dest_addr)) {
- tlv->metric.delay = EIGRP_MAX_METRIC;
- }
- /*
- * End of filtering
- */
-
- msg.packet_type = EIGRP_OPC_REPLY;
- msg.eigrp = eigrp;
- msg.data_type = EIGRP_INT;
- msg.adv_router = nbr;
- msg.metrics = tlv->metric;
- msg.entry = entry;
- msg.prefix = dest;
- eigrp_fsm_event(&msg);
+ if (type != EIGRP_TLV_IPv4_INT)
+ continue;
+
+ struct prefix dest_addr;
+
+ stream_set_getp(s, s->getp - sizeof(uint16_t));
+
+ tlv = eigrp_read_ipv4_tlv(s);
+ dest_addr.family = AF_INET;
+ dest_addr.u.prefix4 = tlv->destination;
+ dest_addr.prefixlen = tlv->prefix_length;
+ struct eigrp_prefix_entry *dest =
+ eigrp_topology_table_lookup_ipv4(eigrp->topology_table,
+ &dest_addr);
+ /*
+ * Destination must exists
+ */
+ if (!dest) {
+ char buf[PREFIX_STRLEN];
+
+ flog_err(EIGRP_ERR_PACKET,
+ "%s: Received prefix %s which we do not know about",
+ __PRETTY_FUNCTION__,
+ prefix2str(&dest_addr, buf, sizeof(buf)));
eigrp_IPv4_InternalTLV_free(tlv);
+ continue;
+ }
+
+ struct eigrp_fsm_action_message msg;
+ struct eigrp_nexthop_entry *entry =
+ eigrp_prefix_entry_lookup(dest->entries, nbr);
+
+ if (eigrp_update_prefix_apply(eigrp, ei, EIGRP_FILTER_IN,
+ &dest_addr)) {
+ tlv->metric.delay = EIGRP_MAX_METRIC;
}
+ /*
+ * End of filtering
+ */
+
+ msg.packet_type = EIGRP_OPC_REPLY;
+ msg.eigrp = eigrp;
+ msg.data_type = EIGRP_INT;
+ msg.adv_router = nbr;
+ msg.metrics = tlv->metric;
+ msg.entry = entry;
+ msg.prefix = dest;
+ eigrp_fsm_event(&msg);
+
+ eigrp_IPv4_InternalTLV_free(tlv);
}
eigrp_hello_send_ack(nbr);
}