mirrors/arti.git/crates/tor-guardmgr/src/sample.rs, branch arti-v0.0.1

Add #[serde(flatten)] HashMap fields to serializable objects

2021-10-27T12:31:52Z

As per arti#175, we'd like to be able to handle newer Arti versions storing additional state in the persisted state files, without dropping this data on the floor when we write out changes to these files. Use the #[serde(flatten)] mechanism to achieve this, by adding catch-all HashMap fields to all structs that are at risk of this happening to them.

Avoid a strange borrow syntax in tor_guardmgr::sample

2021-10-26T16:03:23Z

I'm not sure what I was thinking here.

Implement a "lightweight" form of pathbias detection.

2021-10-26T16:03:23Z

We now track, for every guard: the total number of successful circuits we've built through it, along with the total number of "indeterminate" circuits. Recall that a circuit's status is "indeterminate" if it has failed for a reason that _might_ be the guard's fault, or might not be the guard's fault. For example, if extending to the second hop of the circuit fails, we have no way to know whether the guard deliberately refused to connect there, or whether the second hop is just offline. But we don't want to forgive all indeterminate circuit failures: if we did, then a malicious guard could simply reject any second hops that it didn't like, thereby filtering the client into a chosen set of circuits. As a stopgap solution, this patch now makes guards become permanently disabled if the fraction of their circuit failures becomes too high. See also general-purpose path bias selection (arti#65), and Mike's idea for changing the guard reachability definition (torspec#67). This patch doesn't do either of those. Closes #185.

guardmgr: Don't use guards that are marked as unlisted.

2021-10-25T14:27:13Z

Closes #202.

Implement the guard side of shared state directories.

2021-10-21T17:31:38Z

Make the guard selection function return a more useful type.

2021-10-11T19:23:12Z

Add a few tracing calls to tor-guardmgr.

2021-10-08T13:14:36Z

Resolve small issues and XXXX/TODO comments in GuardMgr.

2021-10-07T18:03:21Z

By the time I merge this, most of the comments should have tickets to go with them.

Tests for tor_guardmgr::sample.

2021-10-07T14:45:42Z

Initial backend implementation for guard node manager.

2021-10-07T14:45:42Z

There are some missing parts here (like persistence and tests) and some incorrect parts (I am 90% sure that the "exploratory circuit" flag is bogus). Also it is not integrated with the circuit manager code.