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mamoniot 2023-03-22 19:15:07 -04:00
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zssp/src/zssp.rs
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@ -537,7 +537,7 @@ impl<Application: ApplicationLayer> Context<Application> {
// Open hash lookup of just 2 slots.
// By only checking 2 slots we avoid an expensive hash table lookup while also minimizing the chance that 2 offers collide.
// To DOS, an adversary would either need to volumetrically spam the defrag table to keep all slots full
// or replay Alice's packet header before Alice's packet is fully assembled.
// or replay Alice's packet header from a spoofed physical path before Alice's packet is fully assembled.
// Since Alice's packet header has a randomly generated counter value replaying it in time is very hard.
let mut slot0 = self.defrag[idx0].lock().unwrap();
if slot0.counter() == hashed_counter {