Commit Graph

17 Commits

Author SHA1 Message Date
Andreas Fackler 3b1f587521 Fix QHB loop with 1 validator. 2020-03-20 10:37:31 +01:00
Andreas Fackler 87b1d45d97 Rename DistAlgorithm to ConsensusProtocol. 2019-01-08 14:14:34 +01:00
phahulin 5bfcd6c692 Split FaultKind. (#371) 2019-01-02 13:55:50 +03:00
Andreas Fackler 108ac574bb Migrate to rand 0.6. (#368)
* Migrate to rand 0.6.

* Prefer SliceRandom where it makes sense.
2018-12-27 10:34:34 +01:00
Andreas Fackler ee99aad266 Make Step::extend_with must_use. 2018-12-17 15:38:18 +01:00
Andreas Fackler 7677f6343c Remove unwrap and expect calls from production code. 2018-12-17 15:38:18 +01:00
Vladimir Komendantskiy 14960a148e
Remove peers from sender queue (#352)
* impl. old validator removal from sender queue peer list

* provided current validators for sender queue peer removal

* renamed validators as nodes in the sender queue

* Revert "renamed validators as nodes in the sender queue"

This reverts commit 78e1e1569d5f624c469bf752a5bf874b434a61d2.

* cleaned up the SQ builder and moved removal of old validators to triggers

* computing participant transitions from batches in the sender queue

* added a missing comment

* removing old validators as soon as all messages are delivered up to the last epoch

* review comments

* rejoined Node 0 in the old DHB test

* DHB test uses the first step of the DHB algorithm on the restarted node

* changed test batch verification to account for node 0 removal

* updated net_dynamic_hb test to cope with the removal of node 0

* relaxed verification of batches to only check inclusion of node 0 transactions

* corrected test state transitions in DHB and QHB tests

* added a builder function for a joining QHB

* rejoin the pivot node instead of node 0

* changed VirtualNet::verify_batches to take a full node as an argument

* corrected a variable name

* correction: use the pivot node ID instead of indices

* corrected the pivot node ID

* simplified a find

* simplified a conditional statement

* corrected the inference of expected output in verify_batches

* WIP on DHB and QHB tests; VirtualNet::verify_batches made more general

* readded node 0 in the DHB test when InProgress change is output

* allowed node 0 to miss a few batches while it is removed in the QHB test

* edition and rebase fixes

* refactored the use of process_step

* added VirtualNet functionality of node insertion and removal

* restarting the pivot node after all validators add it as peer

* clippy lints in net_dynamic_hb

* added observer in the QHB test; removed the DHB TestNetwork test

* fixed rng usage in the QHB test

* check output length when verifying batches; comment correction
2018-12-17 13:27:46 +00:00
Marc Brinkmann eafa77d5fc OsRng / external RNG Refactoring (#357)
* Use `OsRng` in place of `thread_rng`.

This changes the defaults of any builder by instantiating an `OsRng` instead of
a `thread_rng`, the former being much more secure than the latter.

Additionally, all the unit tests that still instantiate RNGs manually used `OsRng`s
as well; while there is no actual need for this level of security in tests, the performance overhead is very small and random number generation complexity has such a small impact on these tests that the convenience of being able to ban `thread_rng` from the codebase altogether, setting a good example and avoid issues when refactoring later greatly outweigh the negatives.

* Instead of storing random number generators in the various consensus algorithm instances, pass them in from the outside whenever they are needed.

This changes a large amount of interfaces (and in this commit is only partially done, since `DistAlgorithm` needs to be fundamentally altered as well.

It also obsoletes parts of the `util` module.

* Added an `R: Rng` type parameter to both methods of `DistAlgorithm`, forcing callers to pass in their own Rngs.

* Fixed documentation grammar and spelling in some of the altered interfaces due to RNG refactoring.

* Move `rng` argument to the end of the argument for most functions.

Also includes a reformatting due to Rust 1.30.

* Updated tests, accomodate `rng`-API changes.

* Fixed remaining compilation issues with new RNG code.

* Fix illegal `self` import outside curly braces.

* Cleaned up comments and fixed broken definition of `broadcast_input`.

* Updated existing test cases to properly work with static dispatch randomness.

* Do not use boxed `Rng`s for key generation in test networks.

* Use the passed-in `Rng` in `ReorderingAdversary`, instead of storing a boxed one.

* Fixed clippy lints after refactoring.

* Removed some no-longer necessary manual `fmt::Debug` implementations in test framework.

* Use `OsRng` even in tests in `binary_agreement_mitm`.

* Use a proper deterministic RNG in tests `binary_agreement_mitm`.

* Refactor `examples/simulation.rs` by not using `ThreadRng`, passing generic `Rng` parameters throughout and using a type alias instead of a newtype as the `Transaction`.

* Remove `thread_rng` use from `examples/node.rs`.

* Explicitly construct `InternalContrib` in `DynamicHoneyBadger::propose`.

* Fixed typo in description of `DistAlgorithm` trait.
2018-12-14 12:51:09 +00:00
Demi Marie Obenour 7fb172cda2 Switch to 2018 edition idioms (#359)
* Switch to 2018 edition idioms

* Fix build with Rust 2018.

* Remove unnecessary cloning, make `max_faulty` const.

* Remove unneeded `extern crate` statements.
2018-12-11 14:44:36 +01:00
Andreas Fackler b2071fe2be Extend the documentation, simplify errors.
This changes and adds several doc comments, adds the `missing_docs` lint
and simplifies some of the error types.
2018-11-27 12:25:50 +01:00
Andreas Fackler c94e3ff16f Add epoch getters to JoinPlan, HB, DHB and QHB. 2018-11-18 10:48:38 +01:00
Andreas Fackler e89688bbd8
Allow arbitrary validator set changes in DHB. (#339)
* Allow arbitrary validator set changes in DHB.

This replaces `NodeChange` with a full list of IDs and public keys,
instead of just a single to-be-added or to-be-removed node, to allow
completely replacing the set of validators by any arbitrary new set in a
single key generation step.

* Address review comments: added_nodes, comments.

* Fix MessageScheduler::First.

Make sure every node eventually gets to handle its messages.
2018-11-18 10:17:33 +01:00
Andreas Fackler d0b96f2dc8 Simplify the sender queue.
Remove the distinction between linearized and regular epochs.
Avoid iterating through the whole outgoing queue on epoch change.
2018-11-08 13:14:43 +01:00
Andreas Fackler 7f784e7852 Make Step independent of DistAlgorithm. 2018-11-08 08:51:17 +01:00
Vladimir Komendantskiy 697565c97a
Move sender queue impls out of Honey Badger algorithms (#321)
* moved SenderQueueable impls out of HB algorithm modules and into sender_queue

* added sender_queue::honey_badger
2018-11-06 17:22:28 +00:00
Andreas Fackler b71f9142f6 Add SenderQueue convenience methods for voting. 2018-11-06 14:12:31 +01:00
Vladimir Komendantskiy ee46dd4b81 sender queue implementation 2018-11-05 11:11:00 +00:00