Commit Graph

54 Commits

Author SHA1 Message Date
Jacek Sieka a1bd44f4b0
small spec cleanups (#1501)
* clean up logging a bit
* return error on indexed attestation check
2020-08-13 13:47:06 +00:00
tersec fe1a7922c8
update attestation aggregation validation to spec refs of v0.12.2 (#1481) 2020-08-10 14:49:18 +00:00
Jacek Sieka 84a501d1ff
remove one cache, add another (#1449)
* remove one cache, add another

This cache removes the need for rewinding in most attestation validation
flow since the attestations come from one of two epochs and must be
targetting a viable block.

Additionally, it also removes all state caches which are less likely to
be used over-all - more metrics are needed to track the rewinding.

On risk is that when chains don't finalize, we'll have lots of epochrefs
in memory meaning lots of validator key databases, most being exactly
the same. This can be addressed in any number of ways. Some of the
memory usage is mitigated by the fact that we previously had lots of big
state caches and now we're keeping only keys instead.

* cleanups

* doc
2020-08-06 19:48:47 +00:00
tersec 81b3c0ea40
update spec refs to v0.12.2 (#1457)
* update spec refs to v0.12.2 and change a .len.uint64 to .lenu64

* pull back from any non-pure-comment changes, since Jenkins is being wonky
2020-08-06 13:05:13 +00:00
Jacek Sieka 15b99e4c11
cache beacon proposer indices (#1440)
also clear old epochrefs as they're growing unwieldy

in particular, this speeds up gossip block validation by avoiding the
rewind
2020-08-05 08:28:43 +02:00
tersec dd0a91de0c
allow a slot's worth of clock disparity in attestation validation (#1442) 2020-08-04 20:10:29 +00:00
Jacek Sieka 48aca60e81
add target block to quarantine when missing (#1438) 2020-08-04 19:00:55 +00:00
Jacek Sieka 196bc6ea3b
remove redundant attestation check (#1433)
only viable blocks (descendants of the finalized checkpoint) are in the
dag already
2020-08-04 15:52:46 +00:00
tersec df80071bcf
update attestation and block validation to v0.12.2; clean up getAncestorAt()/get_ancestor() (#1417)
* update attestation validation to v0.12.2; clean up getAncestorAt()/get_ancestor()

* update beacon block validation to v0.12.2
2020-08-03 19:47:42 +00:00
tersec 1c6936a35c
add attestations received before referred-to blocks to unresolved list (#1410) 2020-08-03 10:49:15 +00:00
Viktor Kirilov 0a96e5f564
renamed CandidateChains to ChainDagRef and made the Quarantine type a ref type so there is a single instance in the beacon node (#1407) 2020-07-31 14:49:06 +00:00
tersec e0a6f58abe
convert 10 v0.12.1 spec refs to v0.12.2 (#1406) 2020-07-31 09:59:14 +00:00
Viktor Kirilov c032366547
removed the BlockPool type and all of the proxy functions around it (#1401)
* removed the BlockPool type and all of the proxy functions around it - passing the chain DAG and the quarantine explicitly where appropriately - they don't need to be bundled in a type

* fixed the build after the rebase
2020-07-30 21:18:17 +02:00
Jacek Sieka c5fecd472f
more fork-choice fixes (#1388)
* more fork-choice fixes

* use target block/epoch to validate attestations
* make addLocalValidators sync
* add current and previous epoch to cache before doing state transition
* update head state using clearance state as a shortcut, when possible
* use blockslot for fork choice balances
* send attestations using epochref cache

* fix invalid finalized parent being used

also simplify epoch block traversal

* single error handling style in fork choice

* import fix, remove unused async
2020-07-30 17:48:25 +02:00
tersec 99f2d8e06c
update 14 v0.12.1 spec refs to v0.12.2 (#1400) 2020-07-30 09:47:57 +00:00
tersec b45de824a4
convert 22 v0.12.1 spec refs to v0.12.2 and remove 1 unnecessary spec ref (#1384) 2020-07-28 14:55:46 +00:00
Jacek Sieka 157ddd2ac4
Fork choice fixes 5 (#1381)
* limit attestations kept in attestation pool

With fork choice updated, the attestation pool only needs to keep track
of attestations that will eventually end up in blocks - we can thus
limit the horizon of attestations that we keep more aggressively.

To get here, we expose getEpochRef which gets metadata about a
particular epochref, and make sure to populate it when a block is added
- this ensures that state rewinds during block addition are minimized.

In addition, we'll use the target root/epoch when validating
attestations - this helps minimize the number of different states that
we need to rewind to, in general.

* remove CandidateChains.justifiedState

unused

* remove BlockPools.Head object

* avoid quadratic quarantine loop

* fix
2020-07-28 13:54:32 +00:00
Jacek Sieka 48cebc7157
spec cleanups (#1379)
* add helper for beacon committee length (used for quickly validating
attestations)
* refactor some attestation checks to do cheap checks early
* validate attestation epoch before computing active validator set
* clean up documentation / comments
* fill state cache on demand
2020-07-27 16:04:44 +00:00
tersec 20a2525390
v0.12.2 beacon chain protocol update (#1378) 2020-07-27 12:59:57 +02:00
tersec 90708a8287
Prefer converting int` to uint64 and switch foo.len.uint64 to .len64 (#1375)
* avoid converting from uint64 to int, and where most feasible, int type conversion at all

* .len.uint64 -> .len64

* fix 32-bit compilation

* try keeping state_sim loop variable/bounds as int for 32-bit Azure

* len64 -> lenu64
2020-07-26 20:55:48 +02:00
Jacek Sieka fd4d319450
Use fork v2 (#1358)
* fork choice fixes, round 3

* introduce checkpoint tracker
* split out fork choice backend that is independent of dag
* correctly update best checkpoint to use for head selection
* correctly consider wall clock when processing attestations
* preload head history only (only one history is loaded from database
anyway)
* love the DAG

* switch to fork choice v2

also remove BlockRef.children

* fix
2020-07-25 21:41:12 +02:00
Jacek Sieka e0a18a3105
cache beacon committee size calculation (#1363)
* cache beacon committee size calculation

this fixes a bug in get_validator_churn_limit as well

* fix

* make committee counts consistently uint64

mixing feels like the worst of the two worlds
2020-07-23 19:01:07 +02:00
tersec 6b77f3dda5
update compute_subnet_for_attestation() to use https://github.com/ethereum/eth2.0-specs/pull/1876 signature, which isn't in v0.12.1, which works with lookahead (#1346) 2020-07-22 08:04:21 +00:00
tersec 26e893ffc2
restore EpochRef and flush statecaches on epoch transitions (#1312)
* restore EpochRef and flush statecaches on epoch transitions

* more targeted cache invalidation

* remove get_empty_per_epoch_cache(); implement simpler but still faster get_beacon_proposer_index()/compute_proposer_index() approach; add some abstraction layer for accessing the shuffled validator indices cache

* reduce integer type conversions

* remove most of rest of integer type conversion in compute_proposer_index()
2020-07-15 12:44:18 +02:00
Jacek Sieka 300e0d57c1
avoid replaying long empty slots on old votes (#1304)
* avoid replaying long empty slots on old votes

* fixup!

* fixup!

* fixup!
2020-07-13 16:58:38 +02:00
zah 0be77f9cbc
Restore compilation with custom presets (#1309)
This also assigns precise types to the constants in the minimal
and mainnet presets in order to reduce the chance of compilation
errors when custom presets are used (previously, only the custom
presets have precisely assigned types for the constants).
2020-07-13 16:44:58 +02:00
tersec 61b0b5af17
update most remaining non-fork-choice spec refs, updating code where necessary (#1292)
* update most of the remaining non-fork-choice spec refs, updating code where necessary

* revert presumably harmless compute_signing_root() change, but this way, keep things really unchanged outside inspector
2020-07-09 11:43:27 +00:00
Dustin Brody 4140b3b9d9 update 29 spec refs to v0.12.1 2020-07-08 20:49:25 +00:00
tersec c64737e7f2
implement aggregated attestation receiving/validating (#1272)
* implement aggregated attestation receiving/validating

* document the conditions without explicit implementations in isValidAggregatedAttestation()
2020-07-02 16:15:27 +00:00
tersec b4db2ad693
remove v0.11.3 support; add block_sim to CI (#1253)
* remove v0.11.3 support; add block_sim to CI

* rm stray PERSISTENT_COMMITTEE_PERIOD

* remove TopicFilter.InteropAttestations

* bump two comment-spec-refs to v0.12.1
2020-06-29 18:08:58 +00:00
tersec fe15d473c9
effectively revert withEpochState (#1235) 2020-06-25 14:14:41 +02:00
tersec a683656238
send and validate with v0.12.1 attestations (#1213)
* send and validate with v0.12.1 attestations

* use EpochRef instead of empty cache in attestation validation
2020-06-23 10:38:59 +00:00
Eugene Kabanov f60235b3e9
Attestation validator now populates list of missing blocks. (#1211) 2020-06-23 11:29:08 +02:00
Jacek Sieka 5c25d23ef1 eth2hash -> eth2digest
hash in nim is the insecure hash-map helper - might as well use `digest`
consistently to mark the difference
2020-06-16 13:30:21 +00:00
Jacek Sieka 89e4819ce9
collect signature production and verificaiton in one place (#1179)
* collect signature production and verificaiton in one place

Signatures are made over data and domain - here we collect all such
activities in one place.

Also:
* security: fix cast-before-range-check
* log block/attestation verification consistently
* run block verification based on `getProposer` in its own history
* clean up some unused stuff

* import

* missing raises
2020-06-16 07:45:04 +02:00
Mamy Ratsimbazafy ce897fe83f
[Split fork choice PR] Derisk-ed attestation checks changes (#1154)
* Derisked attestation pool improvements

* tune down frequent logs

* VoteTracker logging
2020-06-10 08:58:12 +02:00
Jacek Sieka 56ffb696be
reorder ssz (#1099)
* reorder ssz

* split into hash_trees and ssz_serialization, roughly, for hashing and
IO
* move bitseqs into ssz (from stew)
* clean up imports

* docs, imports
2020-06-03 15:52:02 +02:00
Jacek Sieka 494ffb63ce
eh fixes (#926)
* work around improbable exceptions in metrics / chronos
* fix unnecessary lookup in block pool
2020-04-24 09:16:11 +02:00
Dustin Brody d559f4ee89 create distinct CommitteeIndex type 2020-04-15 09:59:49 +00:00
Jacek Sieka afa08c8e3c
crypto: cleanup (#882)
* crypto: cleanup

* fix several Defect-on-user-input
* make crypto interface more similar to secp
* use `crypto.nim` in all of nbc

* digest: raises

* fix

* vendor
2020-04-11 10:51:07 +02:00
tersec ccbbce79a9
Mostly remove skipMerkleValidation by fixing Merkle proof construction/usage (#879)
* refactor and fix merkle proof construction in test suite and thereby remove most remaining skipMerkleValidation flags, now unnecessary

* a few non-semantic comment update/removals
2020-04-10 15:59:17 +02:00
tersec 6eb4f1f39d
initial attestation aggregation (#769)
* initial attestation aggregation

* fix usage of committee index, vs index in committee; uniformly set trailing/following distance; document how the only-broadcast-if mechanism works better and what aggregation already happens, not otherwise sufficiently clear; use correct BlockSlot across epoch boundaries

* address inconsistent notion of which slot in past to target for aggregate broadcast; follow 0.11.x aggregate broadcast p2p interface topic

* Fix get_slot_signature(...) call after get_domain(...) change required genesis_validators_root

* mark all spec references which aren't dealt with in other PRs as v0.11.1

* update two more spec refs to v0.11.1
2020-04-01 09:59:55 +00:00
tersec cd388bc9bb
extended validation (#812)
* initial extended validation setup

* flesh out all TODO items for attestation and beaconblock verification

* fix finalization and add chronicles debugging messages

* directly use blockPool.headState rather than pointlessly updating it and document this constraint

* fix logic relating to first-attestation checking; support validating blocks across multiple forks
2020-03-31 18:39:02 +00:00
Jacek Sieka 689bcf71c4 clean up block creation
* consistently use state at new block slot to produce block
* factor out signature funcs
* fix missing block application test
2020-03-22 11:15:07 +00:00
Dustin Brody 62584b633e update relevant portions of attestation aggregation spec version; tweak inspector 2020-02-21 19:44:03 +00:00
Dustin Brody 3efbe36c30 additional 0.10.1 updates where already-implemented code is already done 2020-01-27 12:50:54 +00:00
Dustin Brody 50f633209c mark a couple dozen 0.9.2/0.9.4 spec locations as still consistent with 0.10.0; no functional changes 2020-01-22 13:03:45 +00:00
Dustin Brody 46de726e3d mark all compatible 0.9.3 functions and data structures as 0.9.4 2019-12-20 17:24:42 +00:00
Dustin Brody ea4afd7454 mark 19 more 0.9.2-compatible entities as 0.9.3-compatible 2019-12-19 11:46:30 +00:00
Dustin Brody 350a6c071a mark a couple compatible dozen 0.9.2 functions/data structures as 0.9.3 2019-12-18 16:13:39 +00:00