Hopefully this really fixes late packet handling.

This commit is contained in:
Guus Sliepen 2004-11-09 09:51:35 +00:00
parent f7b9761000
commit ca7948fc06

View file

@ -231,20 +231,20 @@ static void receive_udppacket(node_t *n, vpn_packet_t *inpkt)
memset(n->late, 0, sizeof(n->late));
} else if (inpkt->seqno <= n->received_seqno) {
if(inpkt->seqno <= n->received_seqno - sizeof(n->late) * 8 || !(n->late[(inpkt->seqno / 8) % sizeof(n->late)] & (1 << inpkt->seqno % 8))) {
if((n->received_seqno >= sizeof(n->late) * 8 && inpkt->seqno <= n->received_seqno - sizeof(n->late) * 8) || !(n->late[(inpkt->seqno / 8) % sizeof(n->late)] & (1 << inpkt->seqno % 8))) {
logger(LOG_WARNING, _("Got late or replayed packet from %s (%s), seqno %d, last received %d"),
n->name, n->hostname, inpkt->seqno, n->received_seqno);
return;
}
} else {
for(i = n->received_seqno + 1; i < inpkt->seqno; i++)
n->late[(inpkt->seqno / 8) % sizeof(n->late)] |= 1 << i % 8;
n->late[(i / 8) % sizeof(n->late)] |= 1 << i % 8;
}
}
n->late[(inpkt->seqno / 8) % sizeof(n->late)] &= ~(1 << inpkt->seqno % 8);
if(n->received_seqno > inpkt->seqno)
if(inpkt->seqno > n->received_seqno)
n->received_seqno = inpkt->seqno;
if(n->received_seqno > MAX_SEQNO)