Commit graph

258 commits

Author SHA1 Message Date
Luke Parker
6caf45ea1d
Downscope usage of futures 2023-12-10 19:32:52 -05:00
Luke Parker
7122e0faf4
Cache the block's events within TemporalSerai
Event retrieval was prior:
- Retrieve all events in the block, which may be hundreds of KB
- Filter to just a few

Since it's frequent to want multiple sets of events, each filtered in their own
way, this caused the retrieval to happen multiple times. Now, it only will
happen once.

Also has the scoped clients take a reference, not an owned TemporalSerai.
2023-12-08 10:46:10 -05:00
David Bell
16b22dd105
Convert coordinator/substrate/db to use create_db macro (#436)
* chore: implement create_db for substrate (fix broken branch)

* Correct rebase artifacts

* chore: remove todo statement

* chore: rename BlockDb to NextBlock

* chore: return empty tuple instead of empty array for event storage

* Finish rebasing

* .Minor tweaks to remove leftover variables

These may be rebase artifacts.

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-12-08 05:12:16 -05:00
Luke Parker
5c047ebe74
Log the reason for yielding BlockError::Fatal to Tendermint from the Tributary 2023-12-07 09:30:25 -05:00
econsta
91a024e119
coordinator/src/db.rs db macro implimentation (#431)
* coordinator/src/db.rs db macro implimentation

* fixed fmt errors

* converted txn functions to get/set counterparts

* use take_signed_transaction function

* fix for two fo the tests

* Misc tweaks

* Minor tweaks

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-12-07 09:30:11 -05:00
Luke Parker
c511a54d18
Move serai-client off serai-runtime, MIT licensing it
Uses a full-fledged serai-abi to do so.

Removes use of UncheckedExtrinsic as a pointlessly (for us) length-prefixed
block with a more complicated signing algorithm than advantageous.

In the future, we should considering consolidating the various primitives
crates. I'm not convinced we benefit from one primitives crate per pallet.
2023-12-07 02:30:09 -05:00
Luke Parker
797ed49e7b
DKG Removals (#467)
* Update ValidatorSets with a remove_participant call

* Add DkgRemoval, a sign machine for producing the relevant MuSig signatures

* Don't use position-dependent u8s yet Public when removing validators from the DKG

* Add DkgRemovalPreprocess, DkgRemovalShares

Implementation is via a new publish_tributary_tx lambda.

This is code is a copy-pasted mess which will need to be cleaned up.

* Only allow non-removed validators to vote for removals

Otherwise, it's risked that the remaining validators fall below 67% of the
original set.

* Correct publish_serai_tx, which was prior publish_set_keys in practice
2023-12-04 07:04:44 -05:00
Luke Parker
6e8a5f9cb1
cargo update, remove unneeded dependencies from the processor 2023-12-03 00:05:03 -05:00
Luke Parker
4446a369b1 Remove old TODO 2023-12-03 00:04:58 -05:00
Luke Parker
ce038972df Use as_slice instead of as_ref
I don't know why this didn't trigger for me. Potentially a difference in the
month of the nightly clippy?
2023-12-03 00:04:58 -05:00
Luke Parker
2f6fb93f87 Bridge the gap between the prior two commits 2023-12-03 00:04:58 -05:00
Luke Parker
1e6cb8044c Domain Separate the coordinator's tributary transaction hashes 2023-12-03 00:04:58 -05:00
Luke Parker
1ca66b846a Use multiple nonces in the Tributary 2023-12-03 00:04:58 -05:00
Luke Parker
c82d1283af Move the coordinator to expect multiple nonces
This mirrors how Provided TXs handle topics.

Now, instead of managing a global nonce stream, we can use items such as plan
IDs as topics.

This massively benefits re-attempts, as else we'd need a NOP TX to clear unused
nonces.
2023-12-03 00:04:58 -05:00
Luke Parker
b823413c9b
Use parity-db in current Dockerfiles (#455)
* Use redb and in Dockerfiles

The motivation for redb was to remove the multiple rocksdb compile times from
CI.

* Correct feature flagging of coordinator and message-queue in Dockerfiles

* Correct message-queue DB type alias

* Use consistent table typing in redb

* Correct rebase artifacts

* Correct removal of binaries feature from message-queue

* Correct processor feature flagging

* Replace redb with parity-db

It still has much better compile times yet doesn't block when creating multiple
transactions. It also is actively maintained and doesn't grow our tree. The MPT
aspects are irrelevant.

* Correct stray Redb

* clippy warning

* Correct txn get
2023-11-30 04:22:37 -05:00
Luke Parker
f0ff3a18d2
Use debug builds in our Dockerfiles to reduce CI times (#462)
* Use debug builds in our Dockerfiles to reduce CI times

Also enables only spawning the mdns service when debug in the coordinator.

* Correct underflow in processor

Prior undetected due to relase builds not having bounds checks enabled.

* Restore Serai release due to CI/RPC failures caused by compiling it in debug mode

This is *probably* worth an issue filed upstream, if it can be tracked down.

* Correct failing debug asserts in Monero

These debug asserts assumed there was a change address to take the remainder.
If there's no change address, the remainder is shunted to the fee, causing the
fee to be distinct from the estimate.

We presumably need to modify monero-serai such that change: None isn't valid,
and users must use Change::Fingerprintable(None).
2023-11-29 00:24:37 -05:00
Luke Parker
695d1f0ecf
Remove subxt (#460)
* Remove subxt

Removes ~20 crates from our Cargo.lock.

Removes downloading the metadata and enables removing the getMetadata RPC route
(relevant to #379).

Moves forward #337.

Done now due to distinctions in the subxt 0.32 API surface which make it
justifiable to not update.

* fmt, update due to deny triggering on a yanked crate

* Correct the handling of substrate_block_notifier now that it's ephemeral, not long-lived

* Correct URL in tests/coordinator from ws to http
2023-11-28 02:29:50 -05:00
Luke Parker
571195bfda
Resolve #360 (#456)
* Remove NetworkId from processor-messages

Because intent binds to the sender/receiver, it's not needed for intent.

The processor knows what the network is.

The coordinator knows which to use because it's sending this message to the
processor for that network.

Also removes the unused zeroize.

* ProcessorMessage::Completed use Session instead of key

* Move SubstrateSignId to Session

* Finish replacing key with session
2023-11-26 12:14:23 -05:00
Luke Parker
b79cf8abde
Move message-queue to a fully binary representation (#454)
* Move message-queue to a fully binary representation

Additionally adds a timeout to the message queue test.

* coordinator clippy

* Remove contention for the message-queue socket by using per-request sockets

* clippy
2023-11-26 11:22:18 -05:00
Luke Parker
b296be8515
Replace bincode with borsh (#452)
* Add SignalsConfig to chain_spec

* Correct multiexp feature flagging for rand_core std

* Remove bincode for borsh

Replaces a non-canonical encoding with a canonical encoding which additionally
should be faster.

Also fixes an issue where we used bincode in transcripts where it cannot be
trusted.

This ended up fixing a myriad of other bugs observed, unfortunately.
Accordingly, it either has to be merged or the bug fixes from it must be ported
to a new PR.

* Make serde optional, minimize usage

* Make borsh an optional dependency of substrate/ crates

* Remove unused dependencies

* Use [u8; 64] where possible in the processor messages

* Correct borsh feature flagging
2023-11-25 04:01:11 -05:00
Luke Parker
eb1d00aa55
Update TX format in coordinator test 2023-11-23 11:45:00 -05:00
Luke Parker
88a1726399
Fixes for prior commit 2023-11-22 16:24:50 -05:00
akildemir
fcfdadc791
Integrate session pallet into validator-sets pallet (#440)
* remove pallet-session

* Store key shares in InSet

* integrate grandpa to vs-pallet

* integrate pallet babe

* remove pallet-session & authority discovery from runtime

* update the grandpa pallet path

* cargo update grandpa

* cargo update substrate

* Misc tweaks

Sets validators for BABE/GRANDPA in chain_spec, per Akil's realization that was
the missing piece.

* fix pr comments

* bug fix & tidy up

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-22 06:22:46 -05:00
Luke Parker
07c657306b
Remove duplicated genesis presence in Tributary Scanner DB keys
This wasted 32-bytes per every single entry in the DB (ignoring de-duplication
possible by the DB layer).
2023-11-22 04:43:49 -05:00
David Bell
9df8c9476e
Convert tributary to use create_db macro (#448)
* chore: convert tributary to use create_db macro

* chore: fix fmt

* chore: break long line
2023-11-22 04:17:51 -05:00
Luke Parker
1822e31142
Grow the yamux buffers to exceed the maximum message size 2023-11-21 02:01:41 -05:00
Luke Parker
797604ad73
Replace usage of io::Error::new(io::ErrorKind::Other, with io::Error::other
Newly possible with Rust 1.74.
2023-11-19 18:31:37 -05:00
Luke Parker
74a8df4c7b
Add a new primitive of a DB-backed channel
The coordinator already had one of these, albeit implemented much worse than
the one now properly introduced. It had to either be sending or receiving,
whereas the new one can do both at the same time.

This replaces said instance and enables pleasant patterns when implementing the
processor/coordinator.
2023-11-19 02:05:01 -05:00
Luke Parker
6e4ecbc90c
Support trailing commas in create_db 2023-11-18 20:54:37 -05:00
Luke Parker
be48dcc4a4
Use multiple LibP2P topics
We still need a peering protocol... Hopefully, we can read peers off of the
Substrate node's DHT.
2023-11-18 20:37:55 -05:00
Luke Parker
ee50f584aa
Add saner log statements to the coordinator
Disables trace on every single P2P message.

Logs a short-form of each transaction.
2023-11-16 13:37:39 -05:00
Luke Parker
14f3f330db
Remove deadlock in cosign_evaluator 2023-11-16 13:32:15 -05:00
Luke Parker
a03a1edbff
Remove needless transposition in coordinator 2023-11-15 22:49:58 -05:00
Luke Parker
369af0fab5
\#339 addendum 2023-11-15 20:23:19 -05:00
Luke Parker
96f1d26f7a
Add a cosigning protocol to ensure finalizations are unique (#433)
* Add a function to deterministically decide which Serai blocks should be co-signed

Has a 5 minute latency between co-signs, also used as the maximal latency
before a co-sign is started.

* Get all active tributaries we're in at a specific block

* Add and route CosignSubstrateBlock, a new provided TX

* Split queued cosigns per network

* Rename BatchSignId to SubstrateSignId

* Add SubstrateSignableId, a meta-type for either Batch or Block, and modularize around it

* Handle the CosignSubstrateBlock provided TX

* Revert substrate_signer.rs to develop (and patch to still work)

Due to SubstrateSigner moving when the prior multisig closes, yet cosigning
occurring with the most recent key, a single SubstrateSigner can be reused.
We could manage multiple SubstrateSigners, yet considering the much lower
specifications for cosigning, I'd rather treat it distinctly.

* Route cosigning through the processor

* Add note to rename SubstrateSigner post-PR

I don't want to do so now in order to preserve the diff's clarity.

* Implement cosign evaluation into the coordinator

* Get tests to compile

* Bug fixes, mark blocks without cosigners available as cosigned

* Correct the ID Batch preprocesses are saved under, add log statements

* Create a dedicated function to handle cosigns

* Correct the flow around Batch verification/queueing

Verifying `Batch`s could stall when a `Batch` was signed before its
predecessors/before the block it's contained in was cosigned (the latter being
inevitable as we can't sign a block containing a signed batch before signing
the batch).

Now, Batch verification happens on a distinct async task in order to not block
the handling of processor messages. This task is the sole caller of verify in
order to ensure last_verified_batch isn't unexpectedly mutated.

When the processor message handler needs to access it, or needs to queue a
Batch, it associates the DB TXN with a lock preventing the other task from
doing so.

This lock, as currently implemented, is a poor and inefficient design. It
should be modified to the pattern used for cosign management. Additionally, a
new primitive of a DB-backed channel may be immensely valuable.

Fixes a standing potential deadlock and a deadlock introduced with the
cosigning protocol.

* Working full-stack tests

After the last commit, this only required extending a timeout.

* Replace "co-sign" with "cosign" to make finding text easier

* Update the coordinator tests to support cosigning

* Inline prior_batch calculation to prevent panic on rotation

Noticed when doing a final review of the branch.
2023-11-15 16:57:21 -05:00
Luke Parker
bb8e034e68
Test historic start times in tendermint-machine
Closes https://github.com/serai-dex/serai/issues/342.

Under ideal network conditions, this is fine. While I won't claim ideal network
conditions will occur IRL, b0fcdd3367 has the
Tributary rebroadcast messages and should brute-force its way into a
functioning system.
2023-11-13 00:43:35 -05:00
David Bell
c328e5ea68
Convert coordinator/tributary/nonce_decider to use create_db macro (#423)
* chore: convert nonce_deicer to use create_db macro

* Restore pub NonceDecider

* Remove extraneous comma

I forgot to run git commit --amend on the prior commit :/

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-12 12:04:34 -05:00
Luke Parker
54f1929078
Route blame between Processor and Coordinator (#427)
* Have processor report errors during the DKG to the coordinator

* Add RemoveParticipant, InvalidDkgShare to coordinator

* Route DKG blame around coordinator

* Allow public construction of AdditionalBlameMachine

Necessary for upcoming work on handling DKG blame in the processor and
coordinator.

Additionally fixes a publicly reachable panic when commitments parsed with one
ThresholdParams are used in a machine using another set of ThresholdParams.

Renames InvalidProofOfKnowledge to InvalidCommitments.

* Remove unused error from dleq

* Implement support for VerifyBlame in the processor

* Have coordinator send the processor share message relevant to Blame

* Remove desync between processors reporting InvalidShare and ones reporting GeneratedKeyPair

* Route blame on sign between processor and coordinator

Doesn't yet act on it in coordinator.

* Move txn usage as needed for stable Rust to build

* Correct InvalidDkgShare serialization
2023-11-12 07:24:41 -05:00
akildemir
d015ee96a3
Dex improvements (#422)
* remove dex traits&balance types

* remove liq tokens pallet in favor of coins-pallet instance

* fix tests & benchmarks

* remove liquidity tokens trait

* fix CI

* fix pr comments

* Slight renamings

* Add burn_with_instruction as a negative to LiquidityTokens CallFilter

* Remove use of One, Zero, Saturating taits in dex pallet

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-12 06:37:31 -05:00
Luke Parker
c03fb6c71b
Add dedicated BatchSignId 2023-11-06 20:06:36 -05:00
Luke Parker
de41be6e26
Slash on SignCompleted for unrecognized plan 2023-11-05 13:42:01 -05:00
akildemir
97fedf65d0
add reasons to slash evidence (#414)
* add reasons to slash evidence

* fix CI failing

* Remove unnecessary clones

.encode() takes &self

* InvalidVr to InvalidValidRound

* Unrelated to this PR: Clarify reasoning/potentials behind dropping evidence

* Clarify prevotes in SlashEvidence test

* Replace use of read_to_end

* Restore decode_signed_message

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-05 00:04:41 -04:00
Luke Parker
e05b77d830
Support multiple key shares per validator (#416)
* Update the coordinator to give key shares based on weight, not based on existence

Participants are now identified by their starting index. While this compiles,
the following is unimplemented:

1) A conversion for DKG `i` values. It assumes the threshold `i` values used
will be identical for the MuSig signature used to confirm the DKG.
2) Expansion from compressed values to full values before forwarding to the
processor.

* Add a fn to the DkgConfirmer to convert `i` values as needed

Also removes TODOs regarding Serai ensuring validator key uniqueness +
validity. The current infra achieves both.

* Have the Tributary DB track participation by shares, not by count

* Prevent a node from obtaining 34% of the maximum amount of key shares

This is actually mainly intended to set a bound on message sizes in the
coordinator. Message sizes are amplified by the amount of key shares held, so
setting an upper bound on said amount lets it determine constants. While that
upper bound could be 150, that'd be unreasonable and increase the potential for
DoS attacks.

* Correct the mechanism to detect if sufficient accumulation has occured

It used to check if the latest accumulation hit the required threshold. Now,
accumulations may jump past the required threshold. The required mechanism is
to check the threshold wasn't prior met and is now met.

* Finish updating the coordinator to handle a multiple key share per validator environment

* Adjust stategy re: preventing noce reuse in DKG Confirmer

* Add TODOs regarding dropped transactions, add possible TODO fix

* Update tests/coordinator

This doesn't add new multi-key-share tests, it solely updates the existing
single key-share tests to compile and run, with the necessary fixes to the
coordinator.

* Update processor key_gen to handle generating multiple key shares at once

* Update SubstrateSigner

* Update signer, clippy

* Update processor tests

* Update processor docker tests
2023-11-04 19:26:13 -04:00
github-actions[bot]
a2089c61fb
November 2023 - Rust Nightly Update (#413)
* Update nightly

* Replace .get(0) with .first()

* allow new clippy lint

---------

Co-authored-by: GitHub Actions <>
Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-11-03 05:28:07 -04:00
Luke Parker
05dc474cb3
Correct std feature-flagging
If a crate has std set, it should enable std for all dependencies in order to
let them properly select which algorithms to use. Some crates fallback to
slower/worse algorithms on no-std.

Also more aggressively sets default-features = false leading to a *10%*
reduction in the amount of crates coordinator builds.
2023-10-31 07:44:02 -04:00
Luke Parker
652c878f54
Note slight malleability in batch verification 2023-10-27 23:08:31 -04:00
Luke Parker
f22aedc007
Add tweaks meant for prior commit 2023-10-24 04:34:47 -04:00
Luke Parker
0198d4cc46
Add a TributaryState struct with higher-level DB logic 2023-10-24 03:55:13 -04:00
Luke Parker
a1b2bdf0a2
clippy fixes 2023-10-19 06:30:58 -04:00
akildemir
fdfce9e207
Coins pallet (#399)
* initial implementation

* add function to get a balance of an account

* add support for multiple coins

* rename pallet to "coins-pallet"

* replace balances, assets and tokens pallet with coins pallet in runtime

* add total supply info

* update client side for new Coins pallet

* handle fees

* bug fixes

* Update FeeAccount test

* Fmt

* fix pr comments

* remove extraneous Imbalance type

* Minor tweaks

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
2023-10-19 06:22:21 -04:00