from_string was trying to parse it as base32z.snode
Also leave FIXMEs behind for the badly named methods (both in RouterID
itself and in ancestor classes).
We are reinterpret_cast'ing the version to a string to send it as raw
bytes, but it was sending \x00\x00\x09 instead of \x00\x09\x0a because
the version constant was actually a uint16_t array.
This just makes the version constant a uint8_t array instead so that it
works (and I am not at all worried about any version component getting
larger than 255).
`deregister_peer` does the exact same thing as `close_connection` so
just remove it.
Also removes an unnecessary loop dispatch call (because we *have* to be
in the logic thread already to be able to touch the variables we are
touching before the dispatch).
- redoing link_manager functions again to implement previously ignored review comments on several PRs
- conceptually merging "whitelist_routers" and new "known_{rids,rcs}", s.t. we can completely eliminate white/red/gray/green/etc lists in favor of something that isn't dumb
- Once we have our set of returned rc's and accepted rid's (ones that were found locally), the remainder are placed in an "unconfirmed" state
- Once there, they have five subsequent successful fetches to be found in request response, at which point their verification counter is incremented and their attempt counter is reset
- If they appear three times, they are "promoted" and moved to our "known_{rid,rc}" list
- disable reachability testing with config option; required to be done on testnet
- reachability testing pipeline through link_manager executes pings similar to storage server. connection established hook reports successful reachability, while connection closed callback (with non-default error code) reports unsuccessful testing
- bootstrap cooldown implemented with 1min timer in case all bootstraps fail
- set comparison implemented in non-initial and non-bootstrap rc fetching; set comparison in rid fetching is done every fetch
- nodedb get_random functions refactored into conditional/non-conditional methods. Conditional search implements reservoir sampling for one-pass accumulation of n random rcs
- greedy evaluation of returned rid's, simplifying post-processing logic to simple frequency comparison per rid against a constant threshold
- tidied up link_manager request/response handling
- TODO:
- review and decide thresholds
- evaluate necessity and potential implementation of rc comparison
- When receiving a request to fetch RouterID's, the remote endpoint fulfilling the request stores them in an unordered set. When the request caller receives that payload, it is loaded into a vector in the same order. However, we should just load it directly into an unordered set to enforce both the order and that none appear twice
- The trust model will have to operate on multiple large lists of RouterID's and RC's efficiently, and maintaining a sort order ensures the values are workable immediately after deserialization
