Commit Graph

36 Commits

Author SHA1 Message Date
KonradStaniec 8ef6b13b1b
Add event loop to socket (#475)
- add eventLoop to control all incoming events
- change semantic of write to asynchronously block only when send buffer is full, and not when bytes do not fit into send window
- change handling of receive buffer, to start dropping packets if the reorder buffer and receive buffer are full. Old behaviour was to async block unless there is space which could lead to resource exhaustion attacks
2022-02-24 18:22:44 +01:00
KonradStaniec 779d767b02
Add more tests stressing conccurent reading and writing on utp socket (#474)
* Add more tests stressing concurrent reading and writing

* Fix bug when remote window dropped below packet size
2022-02-10 08:05:44 +01:00
KonradStaniec 5791afccc3
Implement fast resend logic for selective acks (#468)
* Implement fast resend logic for selective acks
2022-01-27 11:07:40 +01:00
KonradStaniec 7afd44d33e
Implement fast resend logic (#466) 2022-01-26 09:49:34 +01:00
KonradStaniec 9a7b1afe9b
Add custom talkreq implementation (#464)
* Add custom talkreq implementation to utp over discv5
2022-01-24 11:58:35 +01:00
KonradStaniec 4e2b340af6
Fix sudden window drop bug (#465)
Fixes problem which caused drop of maxWindow to the size of
only one packet in case of only one packet hitting timeout.
2022-01-21 14:48:01 +01:00
KonradStaniec 45348e7664
Add more logs to utp (#463)
* Add more logs to utp

* Change initial timeout for inc socket to positive value
2022-01-20 13:20:30 +01:00
KonradStaniec b2dab4be08
Re-send acks for old duplicated packets (#462)
* Re-send acks for old duplicated packets
2022-01-20 09:22:53 +01:00
Kim De Mey 26ab9b078e
Minor adjustments in utp_discv5_protocol (#459)
- Move SocketConfig parameter location
- Reuse rng from disc5 protocol
- add exports
- Some whitespace clean-up
2022-01-10 13:49:36 +01:00
KonradStaniec 0f18272315
Test vectors upt decoding/encoding (#458) 2022-01-07 10:38:36 +01:00
KonradStaniec fcb0ff521c
Improve logging in uTP (#457)
* Improve logging
2022-01-07 10:38:19 +01:00
KonradStaniec 9c8e9d9f64
Handle selective acks (#456)
* Handle selective acks
2022-01-04 09:52:38 +01:00
KonradStaniec 664072fff7
Minor improvements from pr comments (#455) 2021-12-28 08:08:05 +01:00
Kim De Mey 2c236f6495
Style fixes according to --styleCheck:usages (#452)
Currently only setting `--styleCheck:hint` as there are some
dependency fixes required and the compiler seems to trip over the
findnode MessageKind, findnode Message field and the findNode
proc. Also over protocol.Protocol usage.
2021-12-20 13:14:50 +01:00
KonradStaniec 0cfe7df817
Handle packets with selective acks (#451)
* Handle packets with selective acks
2021-12-15 13:35:17 +01:00
KonradStaniec b56e19a590
Improve handling of timestamps (#446)
* Improve handling of timestamps
2021-12-10 16:28:00 +01:00
Kim De Mey 41d2d3c991
Utp top level raises & some clean-up (#445)
* Add few missing top level raises Defect in uTP

- Add top level {.push raises: [Defect].}
- remove some local raises, including some unneeded
CatchableErrors.
- Don't export messageHandler (avoiding annoying naming collisions)
- export utp_router as those connection callbacks are in the API

* Add some missing copyright clauses

* Some ident and max line length cleanup

* Rename utp_discv5_protocol.nim to be more consistent
2021-12-10 11:12:24 +01:00
KonradStaniec 09959d2a3f
Update timestamp and ackNr on packet resend (#444)
* Update timestamp and ackNr on packet resend
2021-12-10 10:18:00 +01:00
KonradStaniec b4066a5688
Ledbat congestion control (#443)
* Return delay to remote peer

* Initial ledbat window calculation

* Add tests for window grow and decay

* Add delay histograms

* Add calculation of clock drift
2021-12-09 10:52:21 +01:00
KonradStaniec e7bc10ab00
Add config for max snd buffer size (#440)
* Add config for max snd buffer size
2021-12-02 16:51:44 +01:00
KonradStaniec 3c8915cae1
Track send buffer and properly handle back pressoure when window is to small to process data (#437)
* Add separate datastructure to keep track of window

* Asynchronously block write until until new space in snd buffer

* Introduce write loop

* Properly handle write cancellation

* Proper handling of sending fin packet

* Reset remote window after configured amount of time
2021-12-02 15:46:18 +01:00
KonradStaniec 139c6fa2a8
Track current bytes in flight (#434) 2021-11-24 17:49:13 +01:00
KonradStaniec ce296ff76e
Make initial state of socket configurable (#428)
* Make initial state of socket configurable
2021-11-19 11:36:46 +01:00
KonradStaniec d5e5ec9f90
Add possibility to connect with requested conneciton id (#425)
* Improve error handling when initiating connection

* Add api to connect with requested id

* Add callback to allow only specific incoming peers
2021-11-18 10:05:56 +01:00
KonradStaniec 73d9bf4c80
Add ackNr validation (#424) 2021-11-15 11:32:00 +01:00
KonradStaniec 8139aae346
Advertise correct rcv buffer size (#423)
* Advertise correct rcv buffer size
2021-11-12 10:58:49 +01:00
KonradStaniec b671f6c901
Handling of fin packet (#421)
* Handling of connection finalization by sending and receiving FIN packets
2021-11-09 15:29:59 +01:00
KonradStaniec 7a113ffa48
Add handling of reset packet (#420)
* Add handling of reset packet
2021-11-05 09:41:41 +01:00
KonradStaniec d4cc42241d
Add handling of out of order packets (#418)
* Add handling of out of order packets
2021-11-04 07:38:46 +01:00
KonradStaniec 34bac6e703
Utp code cleanup (#417)
* Refactor tests and move socket to separate file

* Move sockets handling to separate class

* Abstract over underlying transport

* Fix bug with receiving duplicated SYN packet

* Fix race condition in connect
2021-10-28 11:41:43 +02:00
KonradStaniec fd4f78d1c0
Add timeout loop (#416)
* Modify outbuffer

Each element of outbuffer keeps encoded packet ,number
of transmissions of givern packet and information if
given packet needs to be re-send.

* Add initial handling of timeouts

* Add tests for syn re-sends
2021-10-25 09:58:13 +02:00
KonradStaniec 88795c6477
Add sending and receiving data procedures (#407)
* Add sending and receiving data procedures
2021-10-19 13:36:57 +02:00
KonradStaniec 6fbf129ba9
Add initial handling of acks (#406)
* Add initial handling of acks

Add implemetaion of circular buffer based on reference implementation
Add way to test number of packet in flight
Add acking of initial syn packet
2021-10-15 13:38:51 +02:00
KonradStaniec 7ae287ad1b
Add rudimentary connect function (#405)
* Add rudimentary connect function
2021-10-11 14:16:06 +02:00
KonradStaniec 32ef1b7f4f
Improve serialization implementation (#403) 2021-10-06 11:36:37 +02:00
KonradStaniec 9f2f101070
Add initial skeleton of utp protocol (#397)
* Add initial impl of utp over udp

* Add more comments

* Add licenses and push declarations

* Add tests to nimble task

* Pr comments

Use better random generator
Raise assert error in case of buffer io exception
2021-09-13 14:54:06 +02:00