BrianZill
BrianZill
Current code handles initial transmission of FIN by representing FIN as a zero-length buffer on the unsent queue and having the send code (both immediate and background) know to set...
We should review the retransmit timer implementation, specifically for the following issues: - The code seems overzealous about pushing the retransmit timer into the future. One case in particular is...
Currently, the "unsent queue" is limited to a fixed number of _segments_, not bytes, via the compiled in constant UNSENT_QUEUE_CUTOFF. The size of this send buffer should be some number...
We don't have a consistent place to check API calls for user errors. For example, in the send path, there is a check that the user isn't attempting to send...
Description ======== The existing retransmit routine has a fatal flaw, it is removing data from the unacknowledged queue. This breaks our logic that tracks unacknowledged data. Instead, retransmit() should be...
Description ======== In the top-level src/lib.rs, the do_receive routine attempts to filter out packets sent to "bad" hardware addresses. Currently, this only allows for a single local ethernet address, and...
Description ======== We currently have 3 different Hash Maps for routing incoming packets to their correct connections. One each for active-open (SYN_SENT), passive-open (LISTEN, SYN_RCVD), and established. When we are...
There is a well-known undesirable interaction between TCP's "delayed ACK" mechanism and Nagle's Algorithm that can cause unnecessary delays in request-response protocols. (Basically, a sender with a small amount of...
Currently, getting from a Queue Descriptor to an Established connection takes two separate hash table lookups. These lookups occur for several different fast-path API calls, and presumably could be reduced...
Description ======== The standard socket API normally accepts `INADDR_ANY` (the all-zeroes address) as the wildcard (or "unspecified") address, meaning it matches all addresses. We don't appear to currently support this....