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Properly ACK duplicate segments

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Sergio R. Caprile committed 2026-09-07 13:48:33 -03:00
1 parent 830acc19ee
commit c857ddae57
3 files changed
+8 -6
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src/net_builtin.c
+2 -2
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@@ -1503,9 +1503,9 @@ static void read_conn(struct mg_connection *c, struct pkt *pkt) {
MG_VERBOSE(("ignoring duplicate pkt"));
} else {
MG_VERBOSE(("SEQ != ACK: %x %x %x", seq, s->ack, ack));
tx_tcp(c->mgr->ifp, s->mac, &c->loc, &c->rem, c->dscp, TH_ACK,
mg_htonl(s->seq), mg_htonl(s->ack), "", 0);
}
tx_tcp(c->mgr->ifp, s->mac, &c->loc, &c->rem, c->dscp, TH_ACK,
mg_htonl(s->seq), mg_htonl(s->ack), "", 0);
return; // drop it, RFC-9293 3.10.7.4: ignore ACKno
}
// Now process the segment for ACK and payload