mirror of https://gitlab.torproject.org/tpo/core/arti http://git.dilluti0n.com/mirrors/arti.git/atom?h=arti-v0.0.4 2021-12-09T11:16:23Z 2021-12-09T11:16:23Z Trinity Pointard trinity.pointard@gmail.com 2021-12-09T11:16:23Z urn:sha1:9753a7ee06d1dad9b9dbaa1653593bb545d4cf59 2021-11-25T13:20:37Z Daniel Eades danieleades@hotmail.com 2021-11-25T13:14:05Z urn:sha1:db16d13df4779ac61005050dfe5ce05e3d5a1b5d 2021-11-12T15:04:27Z eta tor@eta.st 2021-11-11T17:44:50Z urn:sha1:c559754116678866eabe525f5b189b50cc78b5cc Previously, the reactor would use an `UnboundedSender` to send things to the `RawCellStream`, in order that the reactor wouldn't block if you failed to read from the latter. This is bad, though, since it means people can just run us out of memory by sending lots of things. To fix this, we make the new `StreamReader` type (which does the reading parts from `RawCellStream`) keep track of the stream's receive window and issue SENDMEs once *it* has consumed enough data to require it, thus meaning that we shouldn't get sent enough data to fill the channel between reactor and `StreamReader` (and, if we do, that's someone trying to flood us, and we abort the circuit). As hinted to above, the `RawCellStream` was removed and its reading functionalities replaced by `StreamReader`; its writing functionalities are handled by `StreamTarget` anyway, so we just give out one of those for the write end. This now means we don't need any mutexes! note: this commit introduces a known issue, arti#230 2021-11-02T16:17:11Z Nick Mathewson nickm@torproject.org 2021-07-13T14:35:46Z urn:sha1:dddf67a9029d1eb1c1b82807d6c80877bdb7c74e We need this for the circuit timeout estimator (#57). It needs to know "how recently have we got some incoming traffic", so that it can tell whether a circuit has truly timed out, or whether the entire network is down. I'm implementing this with coarsetime, since we need to update these in response to every single incoming cell, and we need the timestamp operation to be _fast_. (This reinstates an earlier commit, f30b2280, which I reverted because we didn't need it at the time.) Closes #179. 2021-10-01T16:27:24Z Nick Mathewson nickm@torproject.org 2021-10-01T16:27:24Z urn:sha1:10bedd925c857d1a26de38da40cda2b7e6088cea Closes #163 2021-09-08T15:28:31Z Daniel Eades danieleades@hotmail.com 2021-08-30T07:52:16Z urn:sha1:fb3b8b84b5709ebe8a29051c43b82c4eef85decc 2021-08-27T13:53:09Z Nick Mathewson nickm@torproject.org 2021-08-27T13:53:09Z urn:sha1:557a0ff40b3731d4690767de27010bbeff08777d This will cause some pain for now, but now is really the best time to do this kind of thing.