#include "eigrpd/eigrp_fsm.h"
#include "eigrpd/eigrp_memory.h"
-u_int32_t eigrp_query_send_all(struct eigrp *eigrp)
+uint32_t eigrp_query_send_all(struct eigrp *eigrp)
{
struct eigrp_interface *iface;
struct listnode *node, *node2, *nnode2;
struct eigrp_prefix_entry *pe;
- u_int32_t counter;
+ uint32_t counter;
if (eigrp == NULL) {
zlog_debug("EIGRP Routing Process not enabled");
struct TLV_IPv4_Internal_type *tlv;
struct prefix dest_addr;
- u_int16_t type;
- u_int16_t length;
+ uint16_t type;
+ uint16_t length;
/* increment statistics. */
ei->query_in++;
type = stream_getw(s);
switch (type) {
case EIGRP_TLV_IPv4_INT:
- stream_set_getp(s, s->getp - sizeof(u_int16_t));
+ stream_set_getp(s, s->getp - sizeof(uint16_t));
tlv = eigrp_read_ipv4_tlv(s);
break;
case EIGRP_TLV_IPv4_EXT:
- /* DVS: processing of external routes needs packet and fsm work.
- * for now, lets just not creash the box
- */
+ /* DVS: processing of external routes needs packet and fsm work.
+ * for now, lets just not creash the box
+ */
default:
length = stream_getw(s);
// -2 for type, -2 for len
- for (length-=4; length ; length--) {
+ for (length -= 4; length; length--) {
(void)stream_getc(s);
}
}
void eigrp_send_query(struct eigrp_interface *ei)
{
- struct eigrp_packet *ep;
- u_int16_t length = EIGRP_HEADER_LEN;
+ struct eigrp_packet *ep = NULL;
+ uint16_t length = EIGRP_HEADER_LEN;
struct listnode *node, *nnode, *node2, *nnode2;
struct eigrp_neighbor *nbr;
struct eigrp_prefix_entry *pe;
- char has_tlv;
- bool ep_saved = false;
+ bool has_tlv = false;
+ bool new_packet = true;
+ uint16_t eigrp_mtu = EIGRP_PACKET_MTU(ei->ifp->mtu);
- ep = eigrp_packet_new(ei->ifp->mtu, NULL);
+ for (ALL_LIST_ELEMENTS(ei->eigrp->topology_changes_internalIPV4, node,
+ nnode, pe)) {
+ if (!(pe->req_action & EIGRP_FSM_NEED_QUERY))
+ continue;
+
+ if (new_packet) {
+ ep = eigrp_packet_new(eigrp_mtu, NULL);
+
+ /* Prepare EIGRP INIT UPDATE header */
+ eigrp_packet_header_init(EIGRP_OPC_QUERY, ei->eigrp,
+ ep->s, 0,
+ ei->eigrp->sequence_number, 0);
+
+ // encode Authentication TLV, if needed
+ if ((ei->params.auth_type == EIGRP_AUTH_TYPE_MD5)
+ && (ei->params.auth_keychain != NULL)) {
+ length += eigrp_add_authTLV_MD5_to_stream(ep->s,
+ ei);
+ }
+ new_packet = false;
+ }
- /* Prepare EIGRP INIT UPDATE header */
- eigrp_packet_header_init(EIGRP_OPC_QUERY, ei->eigrp, ep->s, 0,
- ei->eigrp->sequence_number, 0);
+ length += eigrp_add_internalTLV_to_stream(ep->s, pe);
+ has_tlv = true;
+ for (ALL_LIST_ELEMENTS(ei->nbrs, node2, nnode2, nbr)) {
+ if (nbr->state == EIGRP_NEIGHBOR_UP)
+ listnode_add(pe->rij, nbr);
+ }
- // encode Authentication TLV, if needed
- if ((IF_DEF_PARAMS(ei->ifp)->auth_type == EIGRP_AUTH_TYPE_MD5)
- && (IF_DEF_PARAMS(ei->ifp)->auth_keychain != NULL)) {
- length += eigrp_add_authTLV_MD5_to_stream(ep->s, ei);
- }
+ if (length + EIGRP_TLV_MAX_IPV4_BYTE > eigrp_mtu) {
+ if ((ei->params.auth_type == EIGRP_AUTH_TYPE_MD5)
+ && ei->params.auth_keychain != NULL) {
+ eigrp_make_md5_digest(ei, ep->s,
+ EIGRP_AUTH_UPDATE_FLAG);
+ }
+
+ eigrp_packet_checksum(ei, ep->s, length);
+ ep->length = length;
+
+ ep->dst.s_addr = htonl(EIGRP_MULTICAST_ADDRESS);
+
+ ep->sequence_number = ei->eigrp->sequence_number;
+ ei->eigrp->sequence_number++;
- has_tlv = 0;
- for (ALL_LIST_ELEMENTS(ei->eigrp->topology_changes_internalIPV4, node,
- nnode, pe)) {
- if (pe->req_action & EIGRP_FSM_NEED_QUERY) {
- length += eigrp_add_internalTLV_to_stream(ep->s, pe);
for (ALL_LIST_ELEMENTS(ei->nbrs, node2, nnode2, nbr)) {
- if (nbr->state == EIGRP_NEIGHBOR_UP) {
- listnode_add(pe->rij, nbr);
- has_tlv = 1;
- }
+ struct eigrp_packet *dup;
+
+ if (nbr->state != EIGRP_NEIGHBOR_UP)
+ continue;
+
+ dup = eigrp_packet_duplicate(ep, nbr);
+ /*Put packet to retransmission queue*/
+ eigrp_fifo_push(nbr->retrans_queue, dup);
+
+ if (nbr->retrans_queue->count == 1)
+ eigrp_send_packet_reliably(nbr);
}
+
+ has_tlv = false;
+ length = 0;
+ eigrp_packet_free(ep);
+ ep = NULL;
+ new_packet = true;
}
}
- if (!has_tlv) {
- eigrp_packet_free(ep);
+ if (!has_tlv)
return;
- }
- if ((IF_DEF_PARAMS(ei->ifp)->auth_type == EIGRP_AUTH_TYPE_MD5)
- && (IF_DEF_PARAMS(ei->ifp)->auth_keychain != NULL)) {
+ if ((ei->params.auth_type == EIGRP_AUTH_TYPE_MD5)
+ && ei->params.auth_keychain != NULL)
eigrp_make_md5_digest(ei, ep->s, EIGRP_AUTH_UPDATE_FLAG);
- }
+
/* EIGRP Checksum */
eigrp_packet_checksum(ei, ep->s, length);
/*This ack number we await from neighbor*/
ep->sequence_number = ei->eigrp->sequence_number;
+ ei->eigrp->sequence_number++;
for (ALL_LIST_ELEMENTS(ei->nbrs, node2, nnode2, nbr)) {
- if (nbr->state == EIGRP_NEIGHBOR_UP) {
- /*Put packet to retransmission queue*/
- eigrp_fifo_push(nbr->retrans_queue, ep);
- ep_saved = true;
+ struct eigrp_packet *dup;
- if (nbr->retrans_queue->count == 1) {
- eigrp_send_packet_reliably(nbr);
- }
- }
+ if (nbr->state != EIGRP_NEIGHBOR_UP)
+ continue;
+
+ dup = eigrp_packet_duplicate(ep, nbr);
+ /*Put packet to retransmission queue*/
+ eigrp_fifo_push(nbr->retrans_queue, dup);
+
+ if (nbr->retrans_queue->count == 1)
+ eigrp_send_packet_reliably(nbr);
}
- if (!ep_saved)
- eigrp_packet_free(ep);
+ eigrp_packet_free(ep);
}
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