Slashing protection refactor - EIP 3076 (#2094)

* Create CLI tool for slashing export

* Use SQLite as a DB instead of a KV-store

* Keeps v1 and v2 DBs around

* Uses the same schema as Lighthouse v1.1.0

* Passes all interchange tests + skeleton of finalization pruning

* Removes tests that would violate v5 / minimal slashing DB and MinSlot rules

* Migration tool added using low-watermark scheme for faster migration of large number of validators
This commit is contained in:
Mamy Ratsimbazafy 2021-02-09 16:23:06 +01:00 committed by GitHub
parent 9968944329
commit 03f47c8f2f
No known key found for this signature in database
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20 changed files with 2914 additions and 460 deletions

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@ -194,8 +194,14 @@ OK: 1/1 Fail: 0/1 Skip: 0/1
OK: 3/3 Fail: 0/3 Skip: 0/3
## Slashing Protection DB - Interchange [Preset: mainnet]
```diff
+ Smoke test - Complete format - Invalid database is refused [Preset: mainnet] OK
+ Smoke test - Complete format [Preset: mainnet] OK
```
OK: 2/2 Fail: 0/2 Skip: 0/2
## Slashing Protection DB - v1 and v2 migration [Preset: mainnet]
```diff
+ Minimal format migration [Preset: mainnet] OK
```
OK: 1/1 Fail: 0/1 Skip: 0/1
## Slashing Protection DB [Preset: mainnet]
```diff
@ -203,13 +209,12 @@ OK: 1/1 Fail: 0/1 Skip: 0/1
+ Empty database [Preset: mainnet] OK
+ SP for block proposal - backtracking append OK
+ SP for block proposal - linear append OK
+ SP for same epoch attestation target - backtracking append OK
+ SP for same epoch attestation target - linear append OK
+ SP for surrounded attestations OK
+ SP for surrounding attestations OK
+ Test valid attestation #1699 OK
```
OK: 9/9 Fail: 0/9 Skip: 0/9
OK: 8/8 Fail: 0/8 Skip: 0/8
## Spec datatypes
```diff
+ Graffiti bytes OK
@ -275,4 +280,4 @@ OK: 1/1 Fail: 0/1 Skip: 0/1
OK: 2/2 Fail: 0/2 Skip: 0/2
---TOTAL---
OK: 148/157 Fail: 0/157 Skip: 9/157
OK: 149/158 Fail: 0/158 Skip: 9/158

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@ -73,6 +73,9 @@ task test, "Run all tests":
# EF tests
buildAndRunBinary "all_fixtures_require_ssz", "tests/official/", """-d:chronicles_log_level=TRACE -d:const_preset=mainnet -d:chronicles_sinks="json[file]""""
# EIP-3076 - Slashing interchange
buildAndRunBinary "test_official_interchange_vectors", "tests/slashing_protection/", """-d:chronicles_log_level=TRACE -d:const_preset=mainnet -d:chronicles_sinks="json[file]""""
# Mainnet config
buildAndRunBinary "proto_array", "beacon_chain/fork_choice/", """-d:const_preset=mainnet -d:chronicles_sinks="json[file]""""
buildAndRunBinary "fork_choice", "beacon_chain/fork_choice/", """-d:const_preset=mainnet -d:chronicles_sinks="json[file]""""

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@ -6,7 +6,7 @@ import
spec/[datatypes, digest, crypto],
block_pools/block_pools_types,
fork_choice/fork_choice_types,
validator_slashing_protection
validator_protection/slashing_protection
from libp2p/protocols/pubsub/pubsub import ValidationResult

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@ -38,7 +38,7 @@ import
eth1_monitor, version, ssz/merkleization,
sync_protocol, request_manager, keystore_management, interop, statusbar,
sync_manager, validator_duties, filepath,
validator_slashing_protection, ./eth2_processor
validator_protection/slashing_protection, ./eth2_processor
from eth/common/eth_types import BlockHashOrNumber
@ -324,7 +324,7 @@ proc init*(T: type BeaconNode,
res.attachedValidators = ValidatorPool.init(
SlashingProtectionDB.init(
chainDag.headState.data.data.genesis_validators_root,
kvStore SqStoreRef.init(conf.validatorsDir(), "slashing_protection").tryGet()
conf.validatorsDir(), "slashing_protection"
)
)

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@ -26,7 +26,7 @@ import
sync_manager, keystore_management,
spec/eth2_apis/callsigs_types,
eth2_json_rpc_serialization,
validator_slashing_protection,
validator_protection/slashing_protection,
eth/db/[kvstore, kvstore_sqlite3]
logScope: topics = "vc"
@ -314,7 +314,7 @@ programMain:
vc.attachedValidators.slashingProtection =
SlashingProtectionDB.init(
vc.beaconGenesis.genesis_validators_root,
kvStore SqStoreRef.init(config.validatorsDir(), "slashing_protection").tryGet()
config.validatorsDir(), "slashing_protection"
)
let

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@ -27,7 +27,7 @@ import
./eth2_network, ./keystore_management, ./beacon_node_common,
./beacon_node_types, ./nimbus_binary_common, ./eth1_monitor, ./version,
./ssz/merkleization, ./attestation_aggregation, ./sync_manager, ./sszdump,
./validator_slashing_protection
./validator_protection/slashing_protection
# Metrics for tracking attestation and beacon block loss
const delayBuckets = [-Inf, -4.0, -2.0, -1.0, -0.5, -0.1, -0.05,

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@ -4,7 +4,7 @@ import
json_serialization/std/[sets, net],
eth/db/[kvstore, kvstore_sqlite3],
./spec/[datatypes, crypto, digest, signatures, helpers],
./beacon_node_types, validator_slashing_protection
./beacon_node_types, validator_protection/slashing_protection
declareGauge validators,
"Number of validators attached to the beacon node"
@ -12,7 +12,7 @@ declareGauge validators,
func init*(T: type ValidatorPool,
slashingProtectionDB: SlashingProtectionDB): T =
## Initialize the validator pool and the slashing protection service
## `genesis_validator_root` is used as an unique ID for the
## `genesis_validators_root` is used as an unique ID for the
## blockchain
## `backend` is the KeyValue Store backend
result.validators = initTable[ValidatorPubKey, AttachedValidator]()

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@ -0,0 +1,442 @@
# beacon_chain
# Copyright (c) 2018-2020 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import
# stdlib
std/os,
# Status
eth/db/[kvstore, kvstore_sqlite3],
stew/results, chronicles,
# Internal
../spec/[datatypes, digest, crypto],
./slashing_protection_common,
./slashing_protection_v1,
./slashing_protection_v2
export slashing_protection_common
# Generic sandwich
export chronicles
# The high-level slashing protection DB
# -------------------------------------
# This file abstracts differences and
# migration between slashing protection implementations
# and DB schemas
#
# This is done by instantiating
# multiple slashing DB versions using the same handle.
#
# We assume that in case of backward compatible changes
# The new version will use different tables.
#
# During transition period, we allow using multiple
# slashing protection implementations to validate
# the behavior of the new implementation.
#
# Note: this will increase disk IO.
type
SlashProtDBMode* = enum
kCompleteArchiveV1 # Complete Format V1 backend (saves all attestations)
kCompleteArchiveV2 # Complete Format V2 backend (saves all attestations)
kLowWatermarkV2 # Low-Watermark Format V2 backend (prunes attestations)
SlashingProtectionDB* = ref object
## Database storing the blocks attested
## by validators attached to a beacon node
## or validator client.
db_v1: SlashingProtectionDB_v1
db_v2: SlashingProtectionDB_v2
modes: set[SlashProtDBMode]
disagreementBehavior: DisagreementBehavior
DisagreementBehavior* = enum
## How to handle disagreement between DB versions
kCrash
kChooseV1
kChooseV2
# DB Multiversioning
# -------------------------------------------------------------
func version*(_: type SlashingProtectionDB): static int =
# The highest DB version supported
2
# DB Migration
# -------------------------------------------------------------
proc requiresMigrationFromDB_v1(db: SlashingProtectionDB_v2): bool =
## Migrate a v1 DB to v2.
# Check if we have v2 data:
let rawdb = kvstore db.getRawDBHandle()
let v1Root = rawdb.getMetadataTable_DbV1()
if v1Root.isNone():
return false
let v2Root = db.getMetadataTable_DbV2()
if v2Root.isNone():
return true
if v1Root != v2Root:
fatal "Trying to merge-migrate slashing databases from different chains",
v1Root = shortLog(v1Root.get()),
v2Root = shortLog(v2Root.get())
quit 1
return true
# Resource Management
# -------------------------------------------------------------
proc init*(
T: type SlashingProtectionDB,
genesis_validators_root: Eth2Digest,
basePath, dbname: string,
modes: set[SlashProtDBMode],
disagreementBehavior: DisagreementBehavior
): T =
## Initialize or load a slashing protection DB
## This is for Beacon Node usage
## Handles DB version migration
doAssert modes.card >= 1, "No slashing protection mode chosen. Choose a v1, a v2 or v1 and v2 slashing DB mode."
doAssert not(
kCompleteArchiveV2 in modes and
kLowWatermarkV2 in modes), "Mode(s): " & $modes & ". Choose only one of V2 DB modes."
new result
result.modes = modes
result.disagreementBehavior = disagreementBehavior
result.db_v2 = SlashingProtectionDB_v2.initCompatV1(
genesis_validators_root,
basePath, dbname
)
let requiresMigration = result.db_v2.requiresMigrationFromDB_v1()
let rawdb = kvstore result.db_v2.getRawDBHandle()
if not rawdb.checkOrPutGenesis_DbV1(genesis_validators_root):
fatal "The slashing database refers to another chain/mainnet/testnet",
path = basePath/dbname,
genesis_validators_root = genesis_validators_root
result.db_v1.fromRawDB(rawdb)
if requiresMigration:
info "Migrating local validators slashing DB from v1 to v2"
let spdir = result.db_v1.toSPDIR_lowWatermark()
let status = result.db_v2.inclSPDIR(spdir)
case status
of siSuccess:
info "Slashing DB migration successful."
of siPartial:
warn "Slashing DB migration is a partial success."
of siFailure:
fatal "Slashing DB migration failure. Aborting to protect validators."
quit 1
proc init*(
T: type SlashingProtectionDB,
genesis_validators_root: Eth2Digest,
basePath, dbname: string
): T =
## Initialize or load a slashing protection DB
## With defaults
## - v2 DB only, low watermark (regular pruning)
##
## Does not handle migration
init(
T, genesis_validators_root, basePath, dbname,
modes = {kLowWatermarkV2},
disagreementBehavior = kChooseV2
)
proc loadUnchecked*(
T: type SlashingProtectionDB,
basePath, dbname: string, readOnly: bool
): SlashingProtectionDB {.raises:[Defect, IOError].}=
## Load a slashing protection DB
## Note: This is for CLI tool usage
## this doesn't check the genesis validator root
##
## Does not handle migration
result.modes = {kCompleteArchiveV1, kCompleteArchiveV2}
result.disagreementBehavior = kCrash
result.db_v2 = SlashingProtectionDB_v2.loadUnchecked(
basePath, dbname, readOnly
)
result.db_v1.fromRawDB(kvstore result.db_v2.getRawDBHandle())
proc close*(db: SlashingProtectionDB) =
## Close a slashing protection database
db.db_v2.close()
# v1 and v2 are ref objects and use the same DB handle
# so closing one closes both
# DB Queries
# --------------------------------------------
proc useV1(db: SlashingProtectionDB): bool =
kCompleteArchiveV1 in db.modes
proc useV2(db: SlashingProtectionDB): bool =
kCompleteArchiveV2 in db.modes or
kLowWatermarkV2 in db.modes
template queryVersions(
db: SlashingProtectionDB,
queryExpr: untyped
): auto =
## Query multiple DB versions
## Query should be in the form
## myQuery(db_version, args...)
##
## Resolve conflicts according to
## `db.disagreementBehavior`
##
## For example
## checkSlashableBlockProposal(db_version, validator, slot)
##
## db_version will be replaced by db_v1 and db_v2 accordingly
type T = typeof(block:
template db_version: untyped = db.db_v1
queryExpr
)
var res1, res2: T
let useV1 = db.useV1()
let useV2 = db.useV2()
if useV1:
template db_version: untyped = db.db_v1
res1 = queryExpr
if useV2:
template db_version: untyped = db.db_v2
res2 = queryExpr
if useV1 and useV2:
if res1 == res2:
res1
else:
# TODO: Chronicles doesn't work with astToStr.
const queryStr = astToStr(queryExpr)
case db.disagreementBehavior
of kCrash:
fatal "Slashing protection DB has an internal error",
query = queryStr,
dbV1_result = res1,
dbV2_result = res2
doAssert false, "Slashing DB internal error"
res1 # For proper type deduction
of kChooseV1:
error "Slashing protection DB has an internal error, using v1 result",
query = queryStr,
dbV1_result = res1,
dbV2_result = res2
res1
of kChooseV2:
error "Slashing protection DB has an internal error, using v2 result",
query = queryStr,
dbV1_result = res1,
dbV2_result = res2
res2
elif useV1:
res1
else:
res2
proc checkSlashableBlockProposal*(
db: SlashingProtectionDB,
validator: ValidatorPubKey,
slot: Slot
): Result[void, BadProposal] =
## Returns an error if the specified validator
## already proposed a block for the specified slot.
## This would lead to slashing.
## The error contains the blockroot that was already proposed
##
## Returns success otherwise
db.queryVersions(
checkSlashableBlockProposal(db_version, validator, slot)
)
proc checkSlashableAttestation*(
db: SlashingProtectionDB,
validator: ValidatorPubKey,
source: Epoch,
target: Epoch
): Result[void, BadVote] =
## Returns an error if the specified validator
## already voted for the specified slot
## or would vote in a contradiction to previous votes
## (surrounding vote or surrounded vote).
##
## Returns success otherwise
db.queryVersions(
checkSlashableAttestation(db_version, validator, source, target)
)
# DB Updates
# --------------------------------------------
template updateVersions(
db: SlashingProtectionDB,
query: untyped
) {.dirty.} =
## Update multiple DB versions
## Query should be in the form
## myQuery(db_version, args...)
##
## Resolve conflicts according to
## `db.disagreementBehavior`
##
## For example
## registerBlock(db_version, validator, slot, block_root)
##
## db_version will be replaced by db_v1 and db_v2 accordingly
if db.useV1():
template db_version: untyped = db.db_v1
query
if db.useV2():
template db_version: untyped = db.db_v2
query
proc registerBlock*(
db: SlashingProtectionDB,
validator: ValidatorPubKey,
slot: Slot, block_signing_root: Eth2Digest) =
## Add a block to the slashing protection DB
## `checkSlashableBlockProposal` MUST be run
## before to ensure no overwrite.
##
## block_signing_root is the output of
## compute_signing_root(block, domain)
db.updateVersions(
registerBlock(db_version, validator, slot, block_signing_root)
)
proc registerAttestation*(
db: SlashingProtectionDB,
validator: ValidatorPubKey,
source, target: Epoch,
attestation_signing_root: Eth2Digest) =
## Add an attestation to the slashing protection DB
## `checkSlashableAttestation` MUST be run
## before to ensure no overwrite.
##
## attestation_signing_root is the output of
## compute_signing_root(attestation, domain)
db.updateVersions(
registerAttestation(db_version, validator,
source, target, attestation_signing_root)
)
# DB maintenance
# --------------------------------------------
# private for now
proc pruneBlocks*(
db: SlashingProtectionDB,
validator: ValidatorPubkey,
newMinSlot: Slot) =
## Prune all blocks from a validator before the specified newMinSlot
## This is intended for interchange import to ensure
## that in case of a gap, we don't allow signing in that gap.
##
## Note: DB v1 does not support pruning
# {.error: "This is a backend specific proc".}
fatal "This is a backend specific proc"
quit 1
proc pruneAttestations*(
db: SlashingProtectionDB,
validator: ValidatorPubkey,
newMinSourceEpoch: Epoch,
newMinTargetEpoch: Epoch) =
## Prune all blocks from a validator before the specified newMinSlot
## This is intended for interchange import to ensure
## that in case of a gap, we don't allow signing in that gap.
##
## Note: DB v1 does not support pruning
# {.error: "This is a backend specific proc".}
fatal "This is a backend specific proc"
quit 1
proc pruneAfterFinalization*(
db: SlashingProtectionDB,
finalizedEpoch: Epoch
) =
# TODO
# call sqlPruneAfterFinalizationBlocks
# and sqlPruneAfterFinalizationAttestations
# and test that wherever pruning happens, tests still pass
# and/or devise new tests
# {.error: "NotImplementedError".}
fatal "Pruning is not implemented"
quit 1
# Interchange
# --------------------------------------------
proc toSPDIR*(db: SlashingProtectionDB): SPDIR
{.raises: [IOError, Defect].} =
## Assumes that if the db uses both v1 and v2
## the v2 has the latest information and includes the v1 DB
if db.useV2():
return db.db_v2.toSPDIR()
else:
doAssert db.useV1()
return db.db_v1.toSPDIR()
proc inclSPDIR*(db: SlashingProtectionDB, spdir: SPDIR): SlashingImportStatus
{.raises: [SerializationError, IOError, Defect].} =
let useV1 = db.useV1()
let useV2 = db.useV2()
if useV2 and useV1:
let resultV2 = db.db_v2.inclSPDIR(spdir)
let resultV1 = db.db_v1.inclSPDIR(spdir)
if resultV1 == resultV2:
return resultV2
else:
error "The legacy and new slashing protection DB have imported the file with different level of success",
resultV1 = resultV1,
resultV2 = resultV2
return resultV2
if useV2 and not useV1:
return db.db_v2.inclSPDIR(spdir)
else:
doAssert useV1
return db.db_v1.inclSPDIR(spdir)
# The high-level import/export functions are
# - importSlashingInterchange
# - exportSlashingInterchange
# in slashing_protection_types.nim
#
# That builds on a DB backend inclSPDIR and toSPDIR
# SPDIR being a common Intermediate Representation
# Sanity check
# --------------------------------------------------------------
proc foo(db: SlashingProtectionDB_Concept) =
discard
var x: SlashingProtectionDB
foo(x) {.explain.}
static: doAssert SlashingProtectionDB is SlashingProtectionDB_Concept

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@ -0,0 +1,449 @@
# beacon_chain
# Copyright (c) 2018-2020 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import
# Stdlib
std/[typetraits, strutils, algorithm],
# Status
eth/db/[kvstore, kvstore_sqlite3],
stew/results,
stew/byteutils,
serialization,
json_serialization,
chronicles,
# Internal
../spec/[datatypes, digest, crypto]
export serialization, json_serialization # Generic sandwich https://github.com/nim-lang/Nim/issues/11225
# Slashing Protection Interop
# --------------------------------------------
# We use the SPDIR type as an intermediate representation
# between database versions and to generate
# the serialized interchanged format.
#
# References: https://eips.ethereum.org/EIPS/eip-3076
#
# SPDIR: Nimbus-specific, Slashing Protection Database Intermediate Representation
# SPDIF: Cross-client, json, Slashing Protection Database Interchange Format
type
SPDIR* = object
## Slashing Protection Database Interchange Format
metadata*: SPDIR_Meta
data*: seq[SPDIR_Validator]
Eth2Digest0x* = distinct Eth2Digest
## The spec mandates "0x" prefix on serialization
## So we need to set custom read/write
PubKeyBytes* = array[RawPubKeySize, byte]
## This is the serialized byte representation
## of a Validator Public Key.
## Portable between Miracl/BLST
## and limits serialization/deserialization call
PubKey0x* = distinct PubKeyBytes
## The spec mandates "0x" prefix on serialization
## So we need to set custom read/write
## We also assume that pubkeys in the database
## are valid points on the BLS12-381 G1 curve
## (so we skip fromRaw/serialization checks)
SlotString* = distinct Slot
## The spec mandates string serialization for wide compatibility (javascript)
EpochString* = distinct Epoch
## The spec mandates string serialization for wide compatibility (javascript)
SPDIR_Meta* = object
interchange_format_version*: string
genesis_validators_root*: Eth2Digest0x
SPDIR_Validator* = object
pubkey*: PubKey0x
signed_blocks*: seq[SPDIR_SignedBlock]
signed_attestations*: seq[SPDIR_SignedAttestation]
SPDIR_SignedBlock* = object
slot*: SlotString
signing_root*: Eth2Digest0x # compute_signing_root(block, domain)
SPDIR_SignedAttestation* = object
source_epoch*: EpochString
target_epoch*: EpochString
signing_root*: Eth2Digest0x # compute_signing_root(attestation, domain)
# Slashing Protection types
# --------------------------------------------
type
SlashingProtectionDB_Concept* = concept db, type DB
## Database storing the blocks attested
## by validators attached to a beacon node
## or validator client.
# Metadata
# --------------------------------------------
DB.version is int
# Resource Management
# --------------------------------------------
DB is ref
DB.init(Eth2Digest, string, string) is DB
# DB.init(genesis_root, dir, filename)
DB.loadUnchecked(string, string, bool) is DB
# DB.load(dir, filename, readOnly)
db.close()
# Queries
# --------------------------------------------
db.checkSlashableBlockProposal(ValidatorPubKey, Slot) is Result[void, BadProposal]
# db.checkSlashableBlockProposal(validator, slot)
db.checkSlashableAttestation(ValidatorPubKey, Epoch, Epoch) is Result[void, BadVote]
# db.checkSlashableAttestation(validator, source, target)
# Updates
# --------------------------------------------
db.registerBlock(ValidatorPubKey, Slot, Eth2Digest)
# db.checkSlashableAttestation(validator, slot, block_root)
db.registerAttestation(ValidatorPubKey, Epoch, Epoch, Eth2Digest)
# db.checkSlashableAttestation(validator, source, target, block_root)
# Pruning
# --------------------------------------------
db.pruneBlocks(ValidatorPubKey, Slot)
db.pruneAttestations(ValidatorPubKey, Epoch, Epoch)
db.pruneAfterFinalization(Epoch)
# Interchange
# --------------------------------------------
db.toSPDIR() is SPDIR
# to Slashing Protection Data Intermediate Representation
# db.toSPDIR()
db.inclSPDIR(SPDIR) is SlashingImportStatus
# include the content of Slashing Protection Data Intermediate Representation
# in the database
# db.inclSPDIR(path)
SlashingImportStatus* = enum
siSuccess
siFailure
siPartial
BadVoteKind* = enum
## Attestation bad vote kind
# h: height (i.e. epoch for attestation, slot for blocks)
# t: target
# s: source
# 1: existing attestations
# 2: candidate attestation
# Spec slashing condition
DoubleVote # h(t1) == h(t2)
SurroundedVote # h(s1) < h(s2) < h(t2) < h(t1)
SurroundingVote # h(s2) < h(s1) < h(t1) < h(t2)
# Non-spec, should never happen in a well functioning client
TargetPrecedesSource # h(t1) < h(s1) - current epoch precedes last justified epoch
# EIP-3067 (https://eips.ethereum.org/EIPS/eip-3076)
MinSourceViolation # h(s2) < h(s1) - EIP3067 condition 4 (strict inequality)
MinTargetViolation # h(t2) <= h(t1) - EIP3067 condition 5
BadVote* = object
case kind*: BadVoteKind
of DoubleVote:
existingAttestation*: Eth2Digest
of SurroundedVote, SurroundingVote:
existingAttestationRoot*: Eth2Digest # Many roots might be in conflict
sourceExisting*, targetExisting*: Epoch
sourceSlashable*, targetSlashable*: Epoch
of TargetPrecedesSource:
discard
of MinSourceViolation:
minSource*: Epoch
candidateSource*: Epoch
of MinTargetViolation:
minTarget*: Epoch
candidateTarget*: Epoch
BadProposalKind* = enum
# Spec slashing condition
DoubleProposal # h(t1) == h(t2)
# EIP-3067 (https://eips.ethereum.org/EIPS/eip-3076)
MinSlotViolation # h(t2) <= h(t1)
BadProposal* = object
case kind*: BadProposalKind
of DoubleProposal:
existingBlock*: Eth2Digest
of MinSlotViolation:
minSlot*: Slot
candidateSlot*: Slot
func `==`*(a, b: BadVote): bool =
## Comparison operator.
## Used implictily by Result when comparing the
## result of multiple DB versions
if a.kind != b.kind:
false
elif a.kind == DoubleVote:
a.existingAttestation == b.existingAttestation
elif a.kind in {SurroundedVote, SurroundingVote}:
(a.existingAttestationRoot == b.existingAttestationRoot) and
(a.sourceExisting == b.sourceExisting) and
(a.targetExisting == b.targetExisting) and
(a.sourceSlashable == b.sourceSlashable) and
(a.targetSlashable == b.targetSlashable)
elif a.kind == TargetPrecedesSource:
true
elif a.kind == MinSourceViolation:
(a.minSource == b.minSource) and
(a.candidateSource == b.candidateSource)
elif a.kind == MinTargetViolation:
(a.minTarget == b.minTarget) and
(a.candidateTarget == b.candidateTarget)
else: # Unreachable
false
func `==`*(a, b: BadProposal): bool =
## Comparison operator.
## Used implictily by Result when comparing the
## result of multiple DB versions
##
## Except that V1 doesn't support low-watermark...
if a.kind != b.kind:
false
elif a.kind == DoubleProposal:
a.existingBlock == b.existingBlock
elif a.kind == MinSlotViolation:
a.minSlot == b.minSlot and
a.candidateSlot == b.candidateSlot
else: # Unreachable
false
# Serialization
# --------------------------------------------
proc writeValue*(writer: var JsonWriter, value: PubKey0x)
{.inline, raises: [IOError, Defect].} =
writer.writeValue("0x" & value.PubKeyBytes.toHex())
proc readValue*(reader: var JsonReader, value: var PubKey0x)
{.raises: [SerializationError, IOError, Defect].} =
try:
value = PubKey0x reader.readValue(string).hexToByteArray[:RawPubKeySize]()
except ValueError:
raiseUnexpectedValue(reader, "Hex string expected")
proc writeValue*(w: var JsonWriter, a: Eth2Digest0x)
{.inline, raises: [IOError, Defect].} =
w.writeValue "0x" & a.Eth2Digest.data.toHex()
proc readValue*(r: var JsonReader, a: var Eth2Digest0x)
{.raises: [SerializationError, IOError, Defect].} =
try:
a = Eth2Digest0x fromHex(Eth2Digest, r.readValue(string))
except ValueError:
raiseUnexpectedValue(r, "Hex string expected")
proc writeValue*(w: var JsonWriter, a: SlotString or EpochString)
{.inline, raises: [IOError, Defect].} =
w.writeValue $distinctBase(a)
proc readValue*(r: var JsonReader, a: var (SlotString or EpochString))
{.raises: [SerializationError, IOError, Defect].} =
try:
a = (typeof a)(r.readValue(string).parseBiggestUint())
except ValueError:
raiseUnexpectedValue(r, "Integer in a string expected")
proc exportSlashingInterchange*(
db: SlashingProtectionDB_Concept,
path: string, prettify = true) =
## Export a database to the Slashing Protection Database Interchange Format
let spdir = db.toSPDIR()
Json.saveFile(path, spdir, prettify)
echo "Exported slashing protection DB to '", path, "'"
proc importSlashingInterchange*(
db: SlashingProtectionDB_Concept,
path: string): SlashingImportStatus =
## Import a Slashing Protection Database Interchange Format
## into a Nimbus DB.
## This adds data to already existing data.
let spdir = Json.loadFile(path, SPDIR)
return db.inclSPDIR(spdir)
# Logging
# --------------------------------------------
func shortLog*(v: SPDIR_SignedBlock): auto =
(
slot: shortLog(v.slot.Slot),
signing_root: shortLog(v.signing_root.Eth2Digest)
)
func shortLog*(v: SPDIR_SignedAttestation): auto =
(
source_epoch: shortLog(v.source_epoch.Epoch),
target_epoch: shortLog(v.target_epoch.Epoch),
signing_root: shortLog(v.signing_root.Eth2Digest)
)
chronicles.formatIt SlotString: it.Slot.shortLog
chronicles.formatIt EpochString: it.Slot.shortLog
chronicles.formatIt Eth2Digest0x: it.Eth2Digest.shortLog
chronicles.formatIt SPDIR_SignedBlock: it.shortLog
chronicles.formatIt SPDIR_SignedAttestation: it.shortLog
# Interchange import
# --------------------------------------------
proc importInterchangeV5Impl*(
db: SlashingProtectionDB_Concept,
spdir: var SPDIR
): SlashingImportStatus
{.raises: [SerializationError, IOError, Defect].} =
## Common implementation of interchange import
## according to https://eips.ethereum.org/EIPS/eip-3076
## spdir needs to be `var` as it will be sorted in-place
result = siSuccess
for v in 0 ..< spdir.data.len:
let parsedKey = block:
let key = ValidatorPubKey.fromRaw(spdir.data[v].pubkey.PubKeyBytes)
if key.isErr:
# The bytes does not describe a valid encoding (length error)
error "Invalid public key.",
pubkey = "0x" & spdir.data[v].pubkey.PubKeyBytes.toHex()
result = siPartial
continue
if key.get().loadWithCache().isNone():
# The bytes don't deserialize to a valid BLS G1 elliptic curve point.
# Deserialization is costly but done only once per validator.
# and SlashingDB import is a very rare event.
error "Invalid public key.",
pubkey = "0x" & spdir.data[v].pubkey.PubKeyBytes.toHex()
result = siPartial
continue
key.get()
# Sort by ascending minimum slot so that we don't trigger MinSlotViolation
spdir.data[v].signed_blocks.sort do (a, b: SPDIR_SignedBlock) -> int:
result = cmp(a.slot.int, b.slot.int)
spdir.data[v].signed_attestations.sort do (a, b: SPDIR_SignedAttestation) -> int:
result = cmp(a.source_epoch.int, b.source_epoch.int)
if result == 0: # Same epoch
result = cmp(a.target_epoch.int, b.target_epoch.int)
const ZeroDigest = Eth2Digest()
# Blocks
# ---------------------------------------------------
# After import we need to prune the DB from everything
# besides the last imported block slot.
# This ensures that even if 2 slashing DB are imported in the wrong order
# (the last before the earliest) the minSlotViolation check stays consistent.
var maxValidSlotSeen = -1
for b in 0 ..< spdir.data[v].signed_blocks.len:
template B: untyped = spdir.data[v].signed_blocks[b]
let status = db.checkSlashableBlockProposal(
parsedKey, B.slot.Slot
)
if status.isErr():
# We might be importing a duplicate which EIP-3076 allows
# there is no reason during normal operation to integrate
# a duplicate so checkSlashableBlockProposal would have rejected it.
# We special-case that for imports.
# Note: rule 2 mentions repeat signing in the MinSlotViolation case
# having 2 blocks with the same signing root and different slots
# would break the blockchain so we only check for exact slot.
if status.error.kind == DoubleProposal and
B.signing_root.Eth2Digest != ZeroDigest and
status.error.existingBlock == B.signing_root.Eth2Digest:
warn "Block already exists in the DB",
pubkey = spdir.data[v].pubkey.PubKeyBytes.toHex(),
candidateBlock = B
continue
else:
error "Slashable block. Skipping its import.",
pubkey = spdir.data[v].pubkey.PubKeyBytes.toHex(),
candidateBlock = B,
conflict = status.error()
result = siPartial
continue
if B.slot.int > maxValidSlotSeen:
maxValidSlotSeen = B.slot.int
db.registerBlock(
parsedKey,
B.slot.Slot,
B.signing_root.Eth2Digest
)
# Now prune everything that predates
# this interchange file max slot
db.pruneBlocks(parsedKey, Slot maxValidSlotSeen)
# Attestations
# ---------------------------------------------------
# After import we need to prune the DB from everything
# besides the last imported attestation source and target epochs.
# This ensures that even if 2 slashing DB are imported in the wrong order
# (the last before the earliest) the minEpochViolation check stays consistent.
var maxValidSourceEpochSeen = -1
var maxValidTargetEpochSeen = -1
for a in 0 ..< spdir.data[v].signed_attestations.len:
template A: untyped = spdir.data[v].signed_attestations[a]
let status = db.checkSlashableAttestation(
parsedKey,
A.source_epoch.Epoch,
A.target_epoch.Epoch
)
if status.isErr():
# We might be importing a duplicate which EIP-3076 allows
# there is no reason during normal operation to integrate
# a duplicate so checkSlashableAttestation would have rejected it.
# We special-case that for imports.
if status.error.kind == DoubleVote and
A.signing_root.Eth2Digest != ZeroDigest and
status.error.existingAttestation == A.signing_root.Eth2Digest:
warn "Attestation already exists in the DB",
pubkey = spdir.data[v].pubkey.PubKeyBytes.toHex(),
candidateAttestation = A
continue
else:
error "Slashable vote. Skipping its import.",
pubkey = spdir.data[v].pubkey.PubKeyBytes.toHex(),
candidateAttestation = A,
conflict = status.error()
result = siPartial
continue
if A.source_epoch.int > maxValidSourceEpochSeen:
maxValidSourceEpochSeen = A.source_epoch.int
if A.target_epoch.int > maxValidTargetEpochSeen:
maxValidTargetEpochSeen = A.target_epoch.int
db.registerAttestation(
parsedKey,
A.source_epoch.Epoch,
A.target_epoch.Epoch,
A.signing_root.Eth2Digest
)
# Now prune everything that predates
# this interchange file max slot
db.pruneAttestations(parsedKey, Epoch maxValidSourceEpochSeen, Epoch maxValidTargetEpochSeen)

View File

@ -7,16 +7,17 @@
import
# Standard library
std/tables,
std/[tables, os],
# Status
eth/db/kvstore,
eth/db/[kvstore, kvstore_sqlite3],
chronicles,
nimcrypto/[hash, utils],
serialization,
json_serialization,
# Internal
./spec/[datatypes, digest, crypto],
./ssz
../spec/[datatypes, digest, crypto],
../ssz,
./slashing_protection_common
# Requirements
# --------------------------------------------
@ -136,38 +137,12 @@ import
# as per-validator linked lists
type
SlashingProtectionDB* = ref object
SlashingProtectionDB_v1* = ref object
## Database storing the blocks attested
## by validators attached to a beacon node
## or validator client.
backend: KvStoreRef
BadVoteKind* = enum
## Attestation bad vote kind
# h: height (i.e. epoch for attestation, slot for blocks)
# t: target
# s: source
# 1: existing attestations
# 2: candidate attestation
# Spec slashing condition
DoubleVote # h(t1) = h(t2)
SurroundedVote # h(s1) < h(s2) < h(t2) < h(t1)
SurroundingVote # h(s2) < h(s1) < h(t1) < h(t2)
# Non-spec, should never happen in a well functioning client
TargetPrecedesSource # h(t1) < h(s1) - current epoch precedes last justified epoch
BadVote* = object
case kind*: BadVoteKind
of DoubleVote:
existingAttestation*: Eth2Digest
of SurroundedVote, SurroundingVote:
existingAttestationRoot*: Eth2Digest # Many roots might be in conflict
sourceExisting*, targetExisting*: Epoch
sourceSlashable*, targetSlashable*: Epoch
of TargetPrecedesSource:
discard
SlotDesc = object
# Using tuple instead of objects, crashes the Nim compiler
# with SSZ serialization
@ -191,7 +166,7 @@ type
kTargetEpoch
kLinkedListMeta
# Interchange format
kGenesisValidatorRoot
kGenesisValidatorsRoot
kNumValidators
kValidator
@ -212,6 +187,9 @@ type
## Portable between Miracl/BLST
## and limits serialization/deserialization call
# Internal
# -------------------------------------------------------------
{.push raises: [Defect].}
logScope:
topics = "antislash"
@ -254,7 +232,7 @@ func subkey(
result[1 .. ^1] = validator
func subkey(kind: static SlashingKeyKind): array[1, byte] =
static: doAssert kind in {kNumValidators, kGenesisValidatorRoot}
static: doAssert kind in {kNumValidators, kGenesisValidatorsRoot}
result[0] = byte ord(kind)
func subkey(kind: static SlashingKeyKind, valIndex: uint32): array[5, byte] =
@ -263,15 +241,15 @@ func subkey(kind: static SlashingKeyKind, valIndex: uint32): array[5, byte] =
result[1..<5] = toBytesBE(valIndex)
result[0] = byte ord(kind)
proc put(db: SlashingProtectionDB, key: openArray[byte], v: auto) =
proc put(db: SlashingProtectionDB_v1, key: openArray[byte], v: auto) =
db.backend.put(
key,
SSZ.encode(v)
).expect("working database")
proc get(db: SlashingProtectionDB,
key: openArray[byte],
T: typedesc): Opt[T] =
proc rawGet(rawdb: KvStoreRef,
key: openArray[byte],
T: typedesc): Opt[T] =
const ExpectedNodeSszSize = block:
when T is BlockNode:
@ -286,6 +264,8 @@ proc get(db: SlashingProtectionDB,
sizeof(uint32)
elif T is ValidatorPubKey:
RawPubKeySize
elif T is PubKeyBytes:
RawPubKeySize
else:
{.error: "Invalid database node type: " & $T.}
## SSZ serialization is packed
@ -322,37 +302,113 @@ proc get(db: SlashingProtectionDB,
expectedSize = ExpectedNodeSszSize
discard
discard db.backend.get(key, decode).expect("working database")
discard rawdb.get(key, decode).expect("working database")
res
proc setGenesis(db: SlashingProtectionDB, genesis_validator_root: Eth2Digest) =
proc get(db: SlashingProtectionDB_v1,
key: openArray[byte],
T: typedesc): Opt[T] =
db.backend.rawGet(key, T)
proc setGenesis(db: SlashingProtectionDB_v1, genesis_validators_root: Eth2Digest) =
# Workaround SSZ / nim-serialization visibility issue
# "template WriterType(T: type SSZ): type"
# by having a non-generic proc
db.put(
subkey(kGenesisValidatorRoot),
genesis_validator_root
subkey(kGenesisValidatorsRoot),
genesis_validators_root
)
proc init*(
T: type SlashingProtectionDB,
genesis_validator_root: Eth2Digest,
backend: KVStoreRef): SlashingProtectionDB =
result = T(backend: backend)
result.setGenesis(genesis_validator_root)
# DB Multiversioning
# -------------------------------------------------------------
proc close*(db: SlashingProtectionDB) =
func version*(_: type SlashingProtectionDB_v1): static int =
1
proc getMetadataTable_DbV1*(rawdb: KvStoreRef): Option[Eth2Digest] =
## Check if the DB has v2 metadata
## and get its genesis root
if rawdb.contains(
subkey(kGenesisValidatorsRoot)
).get():
return some(
rawdb.rawGet(
subkey(kGenesisValidatorsRoot),
Eth2Digest
).get())
else:
return none(Eth2Digest)
proc checkOrPutGenesis_DbV1*(rawdb: KvStoreRef, genesis_validators_root: Eth2Digest): bool =
if rawdb.contains(
subkey(kGenesisValidatorsRoot)
).get():
return genesis_validators_root == rawdb.rawGet(
subkey(kGenesisValidatorsRoot),
Eth2Digest
).get()
else:
rawdb.put(
subkey(kGenesisValidatorsRoot),
genesis_validators_root.data
).expect("working database")
return true
proc fromRawDB*(dst: var SlashingProtectionDB_v1, rawdb: KvStoreRef) =
## Initialize a SlashingProtectionDB_v1 from a raw DB
## For first instantiation, do not forget to call setGenesis
doAssert rawdb.contains(
subkey(kGenesisValidatorsRoot)
).get(), "The Slashing DB is missing genesis information"
dst = SlashingProtectionDB_v1(backend: rawdb)
# Resource Management
# -------------------------------------------------------------
proc init*(
T: type SlashingProtectionDB_v1,
genesis_validators_root: Eth2Digest,
basePath, dbname: string): T =
result = T(backend: kvStore SqStoreRef.init(basePath, dbname).get())
if not result.backend.checkOrPutGenesis_DbV1(genesis_validators_root):
fatal "The slashing database refers to another chain/mainnet/testnet",
path = basePath/dbname,
genesis_validators_root = genesis_validators_root
proc loadUnchecked*(
T: type SlashingProtectionDB_v1,
basePath, dbname: string, readOnly: bool
): SlashingProtectionDB_v1 {.raises:[Defect, IOError].}=
## Load a slashing protection DB
## Note: This is for conversion usage
## this doesn't check the genesis validator root
let path = basepath/dbname&".sqlite3"
let alreadyExists = fileExists(path)
if not alreadyExists:
raise newException(IOError, "DB '" & path & "' does not exist.")
let backend = kvStore SqStoreRef.init(basePath, dbname, readOnly = false).get()
doAssert backend.contains(
subkey(kGenesisValidatorsRoot)
).get(), "The Slashing DB is missing genesis information"
result = T(backend: backend)
proc close*(db: SlashingProtectionDB_v1) =
discard db.backend.close()
# DB Queries
# --------------------------------------------
proc checkSlashableBlockProposal*(
db: SlashingProtectionDB,
db: SlashingProtectionDB_v1,
validator: ValidatorPubKey,
slot: Slot
): Result[void, Eth2Digest] =
): Result[void, BadProposal] =
## Returns an error if the specified validator
## already proposed a block for the specified slot.
## This would lead to slashing.
@ -367,18 +423,21 @@ proc checkSlashableBlockProposal*(
)
if foundBlock.isNone():
return ok()
return err(foundBlock.unsafeGet().block_root)
return err(BadProposal(
kind: DoubleProposal,
existing_block: foundBlock.unsafeGet().block_root
))
proc checkSlashableAttestation*(
db: SlashingProtectionDB,
db: SlashingProtectionDB_v1,
validator: ValidatorPubKey,
source: Epoch,
target: Epoch
): Result[void, BadVote] =
## Returns an error if the specified validator
## already proposed a block for the specified slot.
## This would lead to slashing.
## The error contains the blockroot that was already proposed
## already voted for the specified slot
## or would vote in a contradiction to previous votes
## (surrounding vote or surrounded vote).
##
## Returns success otherwise
# TODO distinct type for the result attestation root
@ -428,7 +487,7 @@ proc checkSlashableAttestation*(
# Chain reorg
# Detect h(s2) < h(s1)
# If the candidate attestation source precedes
# source(s) we have in the SlashingProtectionDB
# source(s) we have in the SlashingProtectionDB_v1
# we have a chain reorg
# ---------------------------------
if source < ll.sourceEpochs.stop:
@ -507,7 +566,7 @@ proc checkSlashableAttestation*(
# DB update
# --------------------------------------------
proc registerValidator(db: SlashingProtectionDB, validator: ValidatorPubKey) =
proc registerValidator(db: SlashingProtectionDB_v1, validator: ValidatorPubKey) =
## Add a new validator to the database
## Assumes the validator does not exist
let maybeNumVals = db.get(
@ -524,7 +583,7 @@ proc registerValidator(db: SlashingProtectionDB, validator: ValidatorPubKey) =
db.put(subkey(kValidator, valIndex), validator)
proc registerBlock*(
db: SlashingProtectionDB,
db: SlashingProtectionDB_v1,
validator: ValidatorPubKey,
slot: Slot, block_root: Eth2Digest) =
## Add a block to the slashing protection DB
@ -660,7 +719,7 @@ proc registerBlock*(
).unsafeGet()
proc registerAttestation*(
db: SlashingProtectionDB,
db: SlashingProtectionDB_v1,
validator: ValidatorPubKey,
source, target: Epoch,
attestation_root: Eth2Digest) =
@ -812,7 +871,7 @@ proc registerAttestation*(
# --------------------------------------------
proc dumpBlocks*(
db: SlashingProtectionDB,
db: SlashingProtectionDB_v1,
validator: ValidatorPubKey
): string =
## Dump the linked list of blocks proposd by a validator in a string
@ -847,7 +906,7 @@ proc dumpBlocks*(
return $blocks
proc dumpAttestations*(
db: SlashingProtectionDB,
db: SlashingProtectionDB_v1,
validator: ValidatorPubKey
): string =
## Dump the linked list of blocks proposd by a validator in a string
@ -883,80 +942,52 @@ proc dumpAttestations*(
# DB maintenance
# --------------------------------------------
# TODO: pruning
# Note that the complete interchange format
# requires all proposals/attestations ever and so prevent pruning.
proc pruneBlocks*(db: SlashingProtectionDB_v1, validator: ValidatorPubkey, newMinSlot: Slot) =
## Prune all blocks from a validator before the specified newMinSlot
## This is intended for interchange import to ensure
## that in case of a gap, we don't allow signing in that gap.
##
## Note: the Database v1 does not support pruning.
warn "Slashing DB pruning is not supported on the v1 of our database. Request ignored.",
validator = shortLog(validator),
newMinSlot = shortLog(newMinSlot)
proc pruneAttestations*(
db: SlashingProtectionDB_v1,
validator: ValidatorPubkey,
newMinSourceEpoch: Epoch,
newMinTargetEpoch: Epoch) =
## Prune all blocks from a validator before the specified newMinSlot
## This is intended for interchange import.
##
## Note: the Database v1 does not support pruning.
warn "Slashing DB pruning is not supported on the v1 of our database. Request ignored.",
validator = shortLog(validator),
newMinSourceEpoch = shortLog(newMinSourceEpoch),
newMinTargetEpoch = shortLog(newMinTargetEpoch)
proc pruneAfterFinalization*(
db: SlashingProtectionDB_v1,
finalizedEpoch: Epoch
) =
warn "Slashing DB pruning is not supported on the v1 of our database. Request ignored.",
finalizedEpoch = shortLog(finalizedEpoch)
# Interchange
# --------------------------------------------
type
SPDIF = object
## Slashing Protection Database Interchange Format
metadata: SPDIF_Meta
data: seq[SPDIF_Validator]
Eth2Digest0x = distinct Eth2Digest
## The spec mandates "0x" prefix on serialization
## So we need to set custom read/write
PubKey0x = distinct ValidatorPubKey
## The spec mandates "0x" prefix on serialization
## So we need to set custom read/write
SPDIF_Meta = object
interchange_format: string
interchange_format_version: string
genesis_validator_root: Eth2Digest0x
SPDIF_Validator = object
pubkey: PubKey0x
signed_blocks: seq[SPDIF_SignedBlock]
signed_attestations: seq[SPDIF_SignedAttestation]
SPDIF_SignedBlock = object
slot: Slot
signing_root: Eth2Digest0x # compute_signing_root(block, domain)
SPDIF_SignedAttestation = object
source_epoch: Epoch
target_epoch: Epoch
signing_root: Eth2Digest0x # compute_signing_root(attestation, domain)
proc writeValue*(writer: var JsonWriter, value: PubKey0x)
{.inline, raises: [IOError, Defect].} =
writer.writeValue("0x" & value.ValidatorPubKey.toHex())
proc readValue*(reader: var JsonReader, value: var PubKey0x)
{.raises: [SerializationError, IOError, Defect].} =
let key = ValidatorPubKey.fromHex(reader.readValue(string))
if key.isOk:
value = PubKey0x key.get
else:
# TODO: Can we provide better diagnostic?
raiseUnexpectedValue(reader, "Valid hex-encoded public key expected")
proc writeValue*(w: var JsonWriter, a: Eth2Digest0x)
{.inline, raises: [IOError, Defect].} =
w.writeValue "0x" & a.Eth2Digest.data.toHex(lowercase = true)
proc readValue*(r: var JsonReader, a: var Eth2Digest0x)
{.raises: [SerializationError, IOError, Defect].} =
try:
a = Eth2Digest0x fromHex(Eth2Digest, r.readValue(string))
except ValueError:
raiseUnexpectedValue(r, "Hex string expected")
proc toSPDIF*(db: SlashingProtectionDB, path: string)
proc toSPDIR_lowWatermark*(db: SlashingProtectionDB_v1): SPDIR
{.raises: [IOError, Defect].} =
## Export the full slashing protection database
## to a json the Slashing Protection Database Interchange (Complete) Format
var extract: SPDIF
extract.metadata.interchange_format = "complete"
extract.metadata.interchange_format_version = "3"
extract.metadata.genesis_validator_root = Eth2Digest0x db.get(
subkey(kGenesisValidatorRoot), ETH2Digest
## Export only the low watermark metadata
## to the Nimbus Slashing Protection Database Intermediate Representation
##
## The full history is lost.
result.metadata.interchange_format_version = "5"
result.metadata.genesis_validators_root = Eth2Digest0x db.get(
subkey(kGenesisValidatorsRoot), ETH2Digest
# Bug in results.nim
# ).expect("Slashing Protection requires genesis_validator_root at init")
# ).expect("Slashing Protection requires genesis_validators_root at init")
).unsafeGet()
let numValidators = db.get(
@ -965,13 +996,68 @@ proc toSPDIF*(db: SlashingProtectionDB, path: string)
).get(otherwise = 0'u32)
for i in 0'u32 ..< numValidators:
var validator: SPDIF_Validator
var validator: SPDIR_Validator
validator.pubkey = PubKey0x db.get(
subkey(kValidator, i),
ValidatorPubKey
PubKeyBytes
).unsafeGet()
let valID = validator.pubkey.ValidatorPubKey.toRaw()
template valID: untyped = PubKeyBytes validator.pubkey
let ll = db.get(
subkey(kLinkedListMeta, valID),
KeysEpochs
).unsafeGet()
# Create a fake block with the highest slot seen
# to prevent all signing from lower slots
if ll.blockSlots.isInit:
validator.signed_blocks.add SPDIR_SignedBlock(
slot: SlotString ll.blockSlots.stop
# signing_root - empty
)
# Create a fake attestation with the highest epochs seen
# to prevent all signing from lower epochs.
# In reality, the max source epoch and max target epochs
# may be from different attestations.
if ll.targetEpochs.isInit:
validator.signed_attestations.add SPDIR_SignedAttestation(
source_epoch: EpochString ll.sourceEpochs.stop,
target_epoch: EpochString ll.targetEpochs.stop,
)
# Update extract without reallocating seqs
# by manually transferring ownership
result.data.setLen(result.data.len + 1)
shallowCopy(result.data[^1], validator)
proc toSPDIR*(db: SlashingProtectionDB_v1): SPDIR
{.raises: [IOError, Defect].} =
## Export the full slashing protection database
## to the Nimbus Slashing Protection Database Intermediate Representation
##
## Note: this is slow due to how we implement range queries in a KV-store
result.metadata.interchange_format_version = "5"
result.metadata.genesis_validators_root = Eth2Digest0x db.get(
subkey(kGenesisValidatorsRoot), ETH2Digest
# Bug in results.nim
# ).expect("Slashing Protection requires genesis_validators_root at init")
).unsafeGet()
let numValidators = db.get(
subkey(kNumValidators),
uint32
).get(otherwise = 0'u32)
for i in 0'u32 ..< numValidators:
var validator: SPDIR_Validator
validator.pubkey = PubKey0x db.get(
subkey(kValidator, i),
PubKeyBytes
).unsafeGet()
template valID: untyped = PubKeyBytes validator.pubkey
let ll = db.get(
subkey(kLinkedListMeta, valID),
KeysEpochs
@ -985,8 +1071,8 @@ proc toSPDIF*(db: SlashingProtectionDB, path: string)
BlockNode
).unsafeGet()
validator.signed_blocks.add SPDIF_SignedBlock(
slot: curSlot,
validator.signed_blocks.add SPDIR_SignedBlock(
slot: SlotString curSlot,
signing_root: Eth2Digest0x node.block_root
)
@ -997,15 +1083,15 @@ proc toSPDIF*(db: SlashingProtectionDB, path: string)
if ll.targetEpochs.isInit:
var curEpoch = ll.targetEpochs.start
var count = 0
while true:
let node = db.get(
subkey(kTargetEpoch, valID, curEpoch),
TargetEpochNode
).unsafeGet()
validator.signed_attestations.add SPDIF_SignedAttestation(
source_epoch: node.source, target_epoch: curEpoch,
validator.signed_attestations.add SPDIR_SignedAttestation(
source_epoch: EpochString node.source,
target_epoch: EpochString curEpoch,
signing_root: Eth2Digest0x node.attestation_root
)
@ -1014,59 +1100,44 @@ proc toSPDIF*(db: SlashingProtectionDB, path: string)
else:
curEpoch = node.next
inc count
doAssert count < 5
# Update extract without reallocating seqs
# by manually transferring ownership
extract.data.setLen(extract.data.len + 1)
shallowCopy(extract.data[^1], validator)
result.data.setLen(result.data.len + 1)
shallowCopy(result.data[^1], validator)
Json.saveFile(path, extract, pretty = true)
echo "Exported slashing protection DB to '", path, "'"
proc fromSPDIF*(db: SlashingProtectionDB, path: string): bool
proc inclSPDIR*(db: SlashingProtectionDB_v1, spdir: SPDIR): SlashingImportStatus
{.raises: [SerializationError, IOError, Defect].} =
## Import a (Complete) Slashing Protection Database Interchange Format
## file into the specified slahsing protection DB
## Import a Slashing Protection Database Intermediate Representation
## file into the specified slashing protection DB
##
## The database must be initialized.
## The genesis_validator_root must match or
## The genesis_validators_root must match or
## the DB must have a zero root
let extract = Json.loadFile(path, SPDIF)
doAssert not db.isNil, "The Slashing Protection DB must be initialized."
doAssert not db.backend.isNil, "The Slashing Protection DB must be initialized."
let dbGenValRoot = db.get(
subkey(kGenesisValidatorRoot), ETH2Digest
subkey(kGenesisValidatorsRoot), ETH2Digest
).unsafeGet()
if dbGenValRoot != default(Eth2Digest) and
dbGenValRoot != extract.metadata.genesis_validator_root.Eth2Digest:
echo "The slashing protection database and imported file refer to different blockchains."
return false
dbGenValRoot != spdir.metadata.genesis_validators_root.Eth2Digest:
error "The slashing protection database and imported file refer to different blockchains.",
DB_genesis_validators_root = dbGenValRoot,
Imported_genesis_validators_root = spdir.metadata.genesis_validators_root.Eth2Digest
return siFailure
if dbGenValRoot == default(Eth2Digest):
db.put(
subkey(kGenesisValidatorRoot),
extract.metadata.genesis_validator_root.Eth2Digest
subkey(kGenesisValidatorsRoot),
spdir.metadata.genesis_validators_root.Eth2Digest
)
for v in 0 ..< extract.data.len:
for b in 0 ..< extract.data[v].signed_blocks.len:
db.registerBlock(
extract.data[v].pubkey.ValidatorPubKey,
extract.data[v].signed_blocks[b].slot,
extract.data[v].signed_blocks[b].signing_root.Eth2Digest
)
for a in 0 ..< extract.data[v].signed_attestations.len:
db.registerAttestation(
extract.data[v].pubkey.ValidatorPubKey,
extract.data[v].signed_attestations[a].source_epoch,
extract.data[v].signed_attestations[a].target_epoch,
extract.data[v].signed_attestations[a].signing_root.Eth2Digest
)
# Create a mutable copy for sorting
var spdir = spdir
return db.importInterchangeV5Impl(spdir)
return true
# Sanity check
# --------------------------------------------------------------
static: doAssert SlashingProtectionDB_v1 is SlashingProtectionDB_Concept

File diff suppressed because it is too large Load Diff

44
ncli/ncli_slashing.nim Normal file
View File

@ -0,0 +1,44 @@
# beacon_chain
# Copyright (c) 2018-2020 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
# Import/export the validator slashing protection database
import
std/[os, strutils],
confutils,
eth/db/[kvstore, kvstore_sqlite3],
../beacon_chain/validator_protection/slashing_protection,
../beacon_chain/spec/digest
type
SlashProtCmd = enum
dump = "Dump the validator slashing protection DB to json"
restore = "Restore the validator slashing protection DB from json"
SlashProtConf = object
case cmd {.
command,
desc: "Dump database or restore" .}: SlashProtCmd
of dump, restore:
infile {.argument.}: string
outfile {.argument.}: string
proc doDump(conf: SlashProtConf) =
let (dir, file) = splitPath(conf.infile)
# TODO: Make it read-only https://github.com/status-im/nim-eth/issues/312
# TODO: why is sqlite3 always appending .sqlite3 ?
let filetrunc = file.changeFileExt("")
let db = SlashingProtectionDB.loadUnchecked(dir, filetrunc, readOnly = false)
db.exportSlashingInterchange(conf.outfile)
when isMainModule:
let conf = SlashProtConf.load()
case conf.cmd:
of dump: conf.doDump()
of restore: doAssert false, "unimplemented"

View File

@ -37,4 +37,5 @@ fi
pushd "${SUBREPO_DIR}"
./download_test_vectors.sh
./download_slashing_interchange_tests.sh
popd

View File

@ -32,7 +32,8 @@ import # Unit test
./test_zero_signature,
./fork_choice/tests_fork_choice,
./slashing_protection/test_slashing_interchange,
./slashing_protection/test_slashing_protection_db
./slashing_protection/test_slashing_protection_db,
./slashing_protection/test_migration
import # Refactor state transition unit tests
# In mainnet these take 2 minutes and are empty TODOs

View File

@ -0,0 +1,114 @@
# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.used.}
import
# Standard library
std/[unittest, os],
# Status lib
eth/db/kvstore,
stew/results,
nimcrypto/utils,
serialization,
json_serialization,
# Internal
../../beacon_chain/validator_protection/[
slashing_protection,
slashing_protection_v1,
slashing_protection_v2
],
../../beacon_chain/spec/[datatypes, digest, crypto, presets],
# Test utilies
../testutil
template wrappedTimedTest(name: string, body: untyped) =
# `check` macro takes a copy of whatever it's checking, on the stack!
block: # Symbol namespacing
proc wrappedTest() =
timedTest name:
body
wrappedTest()
func fakeRoot(index: SomeInteger): Eth2Digest =
## Create fake roots
## Those are just the value serialized in big-endian
## We prevent zero hash special case via a power of 2 prefix
result.data[0 ..< 8] = (1'u64 shl 32 + index.uint64).toBytesBE()
func fakeValidator(index: SomeInteger): ValidatorPubKey =
## Create fake validator public key
result = ValidatorPubKey()
result.blob[0 ..< 8] = (1'u64 shl 48 + index.uint64).toBytesBE()
func hexToDigest(hex: string): Eth2Digest =
result = Eth2Digest.fromHex(hex)
proc sqlite3db_delete(basepath, dbname: string) =
removeFile(basepath / dbname&".sqlite3-shm")
removeFile(basepath / dbname&".sqlite3-wal")
removeFile(basepath / dbname&".sqlite3")
const TestDir = ""
const TestDbName = "t_slashprot_migration"
suiteReport "Slashing Protection DB - v1 and v2 migration" & preset():
# https://eips.ethereum.org/EIPS/eip-3076
sqlite3db_delete(TestDir, TestDbName)
wrappedTimedTest "Minimal format migration" & preset():
let genesis_validators_root = hexToDigest"0x04700007fabc8282644aed6d1c7c9e21d38a03a0c4ba193f3afe428824b3a673"
block: # export from a v1 DB
let db = SlashingProtectionDB_v1.init(
genesis_validators_root,
TestDir,
TestDbName
)
let pubkey = ValidatorPubKey
.fromHex"0xb845089a1457f811bfc000588fbb4e713669be8ce060ea6be3c6ece09afc3794106c91ca73acda5e5457122d58723bed"
.get()
db.registerBlock(
pubkey,
Slot 81952,
Eth2Digest()
)
db.registerAttestation(
pubkey,
source = Epoch 2290,
target = Epoch 3007,
Eth2Digest()
)
let spdir = db.toSPDIR_lowWatermark()
Json.saveFile(
currentSourcePath.parentDir/"t_migration_slashing_protection_v1.json",
spdir,
pretty = true
)
db.close()
block: # Reopen as the new version
let db = SlashingProtectionDB.init(
genesis_validators_root,
TestDir,
TestDbName
)
# Check that v2 as been initialized (private field :/)
# doAssert: db.db_v2.getMetadataTable_DbV2().get() == genesis_validators_root
db.exportSlashingInterchange(
currentSourcePath.parentDir/"t_migration_slashing_protection_migrated.json"
)
doAssert sameFileContent(
currentSourcePath.parentDir/"t_migration_slashing_protection_v1.json",
currentSourcePath.parentDir/"t_migration_slashing_protection_migrated.json"
)

View File

@ -0,0 +1,216 @@
# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import
# Standard library
std/[unittest, os],
# Status lib
stew/[results, byteutils],
nimcrypto/utils,
chronicles,
# Internal
../../beacon_chain/validator_protection/slashing_protection,
../../beacon_chain/spec/[datatypes, digest, crypto, presets],
# Test utilies
../testutil,
../official/fixtures_utils
type
TestInterchange = object
name: string
## Name of the test case
genesis_validators_root: Eth2Digest0x
## Genesis validator root to use when creating the empty DB
## or to compare the import against
steps: seq[TestStep]
TestStep = object
should_succeed: bool
## Is "interchange" given a valid import
allow_partial_import: bool
## Does "interchange" contain slashable data either as standalone
## or with regards to previous steps
interchange: SPDIR
blocks: seq[CandidateBlock]
## Blocks to try as proposer after DB is imported
attestations: seq[CandidateVote]
## Attestations to try as validator after DB is imported
CandidateBlock = object
pubkey: PubKey0x
slot: SlotString
signing_root: Eth2Digest0x
should_succeed: bool
CandidateVote = object
pubkey: PubKey0x
source_epoch: EpochString
target_epoch: EpochString
signing_root: Eth2Digest0x
should_succeed: bool
func toHexLogs(v: CandidateBlock): auto =
(
pubkey: v.pubkey.PubKeyBytes.toHex(),
slot: $v.slot.Slot.shortLog(),
signing_root: v.signing_root.Eth2Digest.data.toHex(),
should_succeed: v.should_succeed
)
func toHexLogs(v: CandidateVote): auto =
(
pubkey: v.pubkey.PubKeyBytes.toHex(),
source_epoch: v.source_epoch.Epoch.shortLog(),
target_epoch: v.target_epoch.Epoch.shortLog(),
signing_root: v.signing_root.Eth2Digest.data.toHex(),
should_succeed: v.should_succeed
)
chronicles.formatIt CandidateBlock: it.toHexLogs
chronicles.formatIt CandidateVote: it.toHexLogs
proc sqlite3db_delete(basepath, dbname: string) =
removeFile(basepath/ dbname&".sqlite3-shm")
removeFile(basepath/ dbname&".sqlite3-wal")
removeFile(basepath/ dbname&".sqlite3")
const InterchangeTestsDir = FixturesDir / "tests-slashing-v5.0.0" / "generated"
const TestDir = ""
const TestDbPrefix = "test_slashprot_"
proc statusOkOrDuplicateOrMinSlotViolation(
status: Result[void, BadProposal], candidate: CandidateBlock): bool =
# 1. We might be importing a duplicate which EIP-3076 allows
# there is no reason during normal operation to integrate
# a duplicate so checkSlashableBlockProposal would have rejected it.
# 2. The last test "multiple_interchanges_single_validator_single_message_gap"
# requires implementing pruning in-between import to keep the
# MinSlotViolation check relevant.
# That check prevents duplicate because it doesn't keep history.
#
# We need to special-case those exceptions to pass all tests
if status.isOk:
return true
if status.error.kind == DoubleProposal and
candidate.signing_root.Eth2Digest != Eth2Digest() and
status.error.existingBlock == candidate.signing_root.Eth2Digest:
warn "Block already exists in the DB",
candidateBlock = candidate
return true
elif status.error.kind == MinSlotViolation:
# Note: we tested the codepath without pruning.
# Furthermore it's better to be to eager on MinSlotViolation
# than allow slashing (unless the MinSlot is too far in the future)
warn "Block violates low watermark requirement. It's likely a duplicate though.",
candidateBlock = candidate,
error = status.error
return true
return false
proc statusOkOrDuplicateOrMinEpochViolation(
status: Result[void, BadVote], candidate: CandidateVote): bool =
# We might be importing a duplicate which EIP-3076 allows
# there is no reason during normal operation to integrate
# a duplicate so checkSlashableAttestation would have rejected it.
# We special-case that for imports.
if status.isOk:
return true
if status.error.kind == DoubleVote and
candidate.signing_root.Eth2Digest != Eth2Digest() and
status.error.existingAttestation == candidate.signing_root.Eth2Digest:
warn "Attestation already exists in the DB",
candidateAttestation = candidate
return true
elif status.error.kind in {MinSourceViolation, MinTargetViolation}:
# Note: we tested the codepath without pruning.
# Furthermore it's better to be to eager on MinSlotViolation
# than allow slashing (unless the MinSlot is too far in the future)
warn "Attestation violates low watermark requirement. It's likely a duplicate though.",
candidateAttestation = candidate,
error = status.error
return true
return false
proc runTest(identifier: string) =
# The tests produce a lot of log noise
echo "\n\n===========================================\n\n"
let testCase = InterchangeTestsDir / identifier
timedTest "Slashing test: " & identifier:
let t = parseTest(InterchangeTestsDir/identifier, Json, TestInterchange)
# Create a test specific DB
let dbname = TestDbPrefix & identifier.changeFileExt("")
# Delete existing db in case of previous test failure
sqlite3db_delete(TestDir, dbname)
let db = SlashingProtectionDB.init(
Eth2Digest t.genesis_validators_root,
TestDir,
dbname
)
# We don't use defer to auto-close+delete the DB
# as in case of issue we want to keep the DB around for investigation.
for step in t.steps:
let status = db.inclSPDIR(step.interchange)
if not step.should_succeed:
doAssert siFailure == status,
"Unexpected error:\n" &
" " & $status & "\n"
elif step.allow_partial_import:
doAssert siPartial == status,
"Unexpected error:\n" &
" " & $status & "\n"
else:
doAssert siSuccess == status,
"Unexpected error:\n" &
" " & $status & "\n"
for blck in step.blocks:
let status = db.checkSlashableBlockProposal(
ValidatorPubKey.fromRaw(blck.pubkey.PubKeyBytes).get(),
Slot blck.slot
)
if blck.should_succeed:
doAssert status.statusOkOrDuplicateOrMinSlotViolation(blck),
"Unexpected error:\n" &
" " & $status & "\n" &
" for " & $toHexLogs(blck)
else:
doAssert status.isErr(),
"Unexpected success:\n" &
" " & $status & "\n" &
" for " & $toHexLogs(blck)
for att in step.attestations:
let status = db.checkSlashableAttestation(
ValidatorPubKey.fromRaw(att.pubkey.PubKeyBytes).get(),
Epoch att.source_epoch,
Epoch att.target_epoch
)
if att.should_succeed:
doAssert status.statusOkOrDuplicateOrMinEpochViolation(att),
"Unexpected error:\n" &
" " & $status & "\n" &
" for " & $toHexLogs(att)
else:
doAssert status.isErr(),
"Unexpected success:\n" &
" " & $status & "\n" &
" for " & $toHexLogs(att)
# Now close and delete resources.
db.close()
sqlite3db_delete(TestDir, dbname)
suiteReport "Slashing Interchange tests " & preset():
for kind, path in walkDir(InterchangeTestsDir, true):
runTest(path)

View File

@ -15,7 +15,7 @@ import
stew/results,
nimcrypto/utils,
# Internal
../../beacon_chain/validator_slashing_protection,
../../beacon_chain/validator_protection/slashing_protection,
../../beacon_chain/spec/[datatypes, digest, crypto, presets],
# Test utilies
../testutil
@ -42,12 +42,30 @@ func fakeValidator(index: SomeInteger): ValidatorPubKey =
func hexToDigest(hex: string): Eth2Digest =
result = Eth2Digest.fromHex(hex)
proc sqlite3db_delete(basepath, dbname: string) =
removeFile(basepath / dbname&".sqlite3-shm")
removeFile(basepath / dbname&".sqlite3-wal")
removeFile(basepath / dbname&".sqlite3")
const TestDir = ""
const TestDbName = "test_slashprot"
suiteReport "Slashing Protection DB - Interchange" & preset():
# https://hackmd.io/@sproul/Bk0Y0qdGD#Format-1-Complete
# https://eips.ethereum.org/EIPS/eip-3076
sqlite3db_delete(TestDir, TestDbName)
wrappedTimedTest "Smoke test - Complete format" & preset():
let genesis_validators_root = hexToDigest"0x04700007fabc8282644aed6d1c7c9e21d38a03a0c4ba193f3afe428824b3a673"
block: # export
let db = SlashingProtectionDB.init(genesis_validators_root, kvStore MemStoreRef.init())
let db = SlashingProtectionDB.init(
genesis_validators_root,
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
let pubkey = ValidatorPubKey
.fromHex"0xb845089a1457f811bfc000588fbb4e713669be8ce060ea6be3c6ece09afc3794106c91ca73acda5e5457122d58723bed"
@ -76,22 +94,44 @@ suiteReport "Slashing Protection DB - Interchange" & preset():
fakeRoot(65535)
)
db.toSPDIF(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
db.exportSlashingInterchange(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
block: # import - zero root db
let db2 = SlashingProtectionDB.init(Eth2Digest(), kvStore MemStoreRef.init())
let db2 = SlashingProtectionDB.init(
Eth2Digest(),
TestDir,
TestDbName
)
defer:
db2.close()
sqlite3db_delete(TestDir, TestDbName)
doAssert db2.fromSPDIF(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
db2.toSPDIF(currentSourcePath.parentDir/"test_complete_export_slashing_protection_roundtrip1.json")
doAssert siSuccess == db2.importSlashingInterchange(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
db2.exportSlashingInterchange(currentSourcePath.parentDir/"test_complete_export_slashing_protection_roundtrip1.json")
block: # import - same root db
let db3 = SlashingProtectionDB.init(genesis_validators_root, kvStore MemStoreRef.init())
let db3 = SlashingProtectionDB.init(
genesis_validators_root,
TestDir,
TestDbName
)
defer:
db3.close()
sqlite3db_delete(TestDir, TestDbName)
doAssert db3.fromSPDIF(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
db3.toSPDIF(currentSourcePath.parentDir/"test_complete_export_slashing_protection_roundtrip2.json")
doAssert siSuccess == db3.importSlashingInterchange(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
db3.exportSlashingInterchange(currentSourcePath.parentDir/"test_complete_export_slashing_protection_roundtrip2.json")
wrappedTimedTest "Smoke test - Complete format - Invalid database is refused" & preset():
block: # import - invalid root db
let invalid_genvalroot = hexToDigest"0x1234"
let db3 = SlashingProtectionDB.init(invalid_genvalroot, kvStore MemStoreRef.init())
let db4 = SlashingProtectionDB.init(
invalid_genvalroot,
TestDir,
TestDbName
)
defer:
db4.close()
sqlite3db_delete(TestDir, TestDbName)
doAssert not db3.fromSPDIF(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")
doAssert siFailure == db4.importSlashingInterchange(currentSourcePath.parentDir/"test_complete_export_slashing_protection.json")

View File

@ -9,12 +9,12 @@
import
# Standard library
std/unittest,
std/[unittest, os],
# Status lib
eth/db/kvstore,
stew/results,
# Internal
../../beacon_chain/validator_slashing_protection,
../../beacon_chain/validator_protection/slashing_protection,
../../beacon_chain/spec/[datatypes, digest, crypto, presets],
# Test utilies
../testutil
@ -38,9 +38,35 @@ func fakeValidator(index: SomeInteger): ValidatorPubKey =
result = ValidatorPubKey()
result.blob[0 ..< 8] = (1'u64 shl 48 + index.uint64).toBytesBE()
proc sqlite3db_delete(basepath, dbname: string) =
removeFile(basepath / dbname&".sqlite3-shm")
removeFile(basepath / dbname&".sqlite3-wal")
removeFile(basepath / dbname&".sqlite3")
const TestDir = ""
const TestDbName = "test_slashprot"
# Reminder of SQLite constraints for fake data:
# attestations:
# - all fields are NOT NULL
# - attestation_root is unique
# - (validator_id, target_epoch)
# blocks:
# - all fields are NOT NULL
# - block_root is unique
# - (validator_id, slot)
suiteReport "Slashing Protection DB" & preset():
wrappedTimedTest "Empty database" & preset():
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
check:
db.checkSlashableBlockProposal(
@ -58,10 +84,16 @@ suiteReport "Slashing Protection DB" & preset():
target = Epoch 1
).error.kind == TargetPrecedesSource
db.close()
wrappedTimedTest "SP for block proposal - linear append":
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerBlock(
fakeValidator(100),
@ -80,11 +112,6 @@ suiteReport "Slashing Protection DB" & preset():
slot = Slot 10
).isErr()
# Slot occupied by another validator
db.checkSlashableBlockProposal(
fakeValidator(111),
slot = Slot 10
).isOk()
# Slot occupied by another validator
db.checkSlashableBlockProposal(
fakeValidator(100),
slot = Slot 15
@ -115,7 +142,15 @@ suiteReport "Slashing Protection DB" & preset():
).isErr()
wrappedTimedTest "SP for block proposal - backtracking append":
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
# last finalized block
db.registerBlock(
@ -135,36 +170,37 @@ suiteReport "Slashing Protection DB" & preset():
fakeRoot(20)
)
for i in 0 ..< 30:
if i notin {10, 20}:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isOk()
if i > 10 and i != 20: # MinSlotViolation and DupSlot
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isOk, "error: " & $status
else:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isErr()
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isErr, "error: " & $status
db.registerBlock(
fakeValidator(100),
Slot 15,
fakeRoot(15)
)
for i in 0 ..< 30:
if i notin {10, 15, 20}:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isOk()
if i > 10 and i notin {15, 20}: # MinSlotViolation and DupSlot
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isOk, "error: " & $status
else:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isErr()
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isErr, "error: " & $status
check:
db.checkSlashableBlockProposal(
fakeValidator(0xDEADBEEF),
Slot i
@ -180,50 +216,19 @@ suiteReport "Slashing Protection DB" & preset():
fakeRoot(17)
)
for i in 0 ..< 30:
if i notin {10, 12, 15, 17, 20}:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isOk()
if i > 10 and i notin {12, 15, 17, 20}:
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isOk, "error: " & $status
else:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isErr()
db.checkSlashableBlockProposal(
fakeValidator(0xDEADBEEF),
Slot i
).isOk()
db.registerBlock(
fakeValidator(100),
Slot 9,
fakeRoot(9)
)
db.registerBlock(
fakeValidator(100),
Slot 1,
fakeRoot(1)
)
db.registerBlock(
fakeValidator(100),
Slot 3,
fakeRoot(3)
)
for i in 0 ..< 30:
if i notin {1, 3, 9, 10, 12, 15, 17, 20}:
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isErr, "error: " & $status
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isOk()
else:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isErr()
db.checkSlashableBlockProposal(
fakeValidator(0xDEADBEEF),
Slot i
@ -233,31 +238,35 @@ suiteReport "Slashing Protection DB" & preset():
Slot 29,
fakeRoot(29)
)
db.registerBlock(
fakeValidator(100),
Slot 2,
fakeRoot(2)
)
for i in 0 ..< 30:
if i notin {1, 2, 3, 9, 10, 12, 15, 17, 20, 29}:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isOk()
if i > 10 and i notin {12, 15, 17, 20, 29}:
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isOk, "error: " & $status
else:
check:
db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
).isErr()
let status = db.checkSlashableBlockProposal(
fakeValidator(100),
Slot i
)
doAssert status.isErr, "error: " & $status
check:
db.checkSlashableBlockProposal(
fakeValidator(0xDEADBEEF),
Slot i
).isOk()
wrappedTimedTest "SP for same epoch attestation target - linear append":
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
@ -276,11 +285,6 @@ suiteReport "Slashing Protection DB" & preset():
Epoch 0, Epoch 10,
).error.kind == DoubleVote
# Epoch occupied by another validator
db.checkSlashableAttestation(
fakeValidator(111),
Epoch 0, Epoch 10
).isOk()
# Epoch occupied by another validator
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch 15
@ -310,155 +314,17 @@ suiteReport "Slashing Protection DB" & preset():
Epoch 0, Epoch 20
).error.kind == DoubleVote
wrappedTimedTest "SP for same epoch attestation target - backtracking append":
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
# last finalized block
db.registerAttestation(
fakeValidator(0),
Epoch 0, Epoch 0,
fakeRoot(0)
)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 10,
fakeRoot(10)
)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 20,
fakeRoot(20)
)
for i in 0 ..< 30:
if i notin {10, 20}:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).isOk()
else:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).error.kind == DoubleVote
db.checkSlashableAttestation(
fakeValidator(0xDEADBEEF),
Epoch 0, Epoch i
).isOk()
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 15,
fakeRoot(15)
)
for i in 0 ..< 30:
if i notin {10, 15, 20}:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).isOk()
else:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).error.kind == DoubleVote
db.checkSlashableAttestation(
fakeValidator(0xDEADBEEF),
Epoch 0, Epoch i
).isOk()
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 12,
fakeRoot(12)
)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 17,
fakeRoot(17)
)
for i in 0 ..< 30:
if i notin {10, 12, 15, 17, 20}:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).isOk()
else:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).error.kind == DoubleVote
db.checkSlashableAttestation(
fakeValidator(0xDEADBEEF),
Epoch 0, Epoch i
).isOk()
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 9,
fakeRoot(9)
)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 1,
fakeRoot(1)
)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 3,
fakeRoot(3)
)
for i in 0 ..< 30:
if i notin {1, 3, 9, 10, 12, 15, 17, 20}:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).isOk()
else:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).error.kind == DoubleVote
db.checkSlashableAttestation(
fakeValidator(0xDEADBEEF),
Epoch 0, Epoch i
).isOk()
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 29,
fakeRoot(29)
)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 2,
fakeRoot(2)
)
for i in 0 ..< 30:
if i notin {1, 2, 3, 9, 10, 12, 15, 17, 20, 29}:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).isOk()
else:
check:
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 0, Epoch i
).error.kind == DoubleVote
db.checkSlashableAttestation(
fakeValidator(0xDEADBEEF),
Epoch 0, Epoch i
).isOk()
wrappedTimedTest "SP for surrounded attestations":
block:
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
@ -479,19 +345,22 @@ suiteReport "Slashing Protection DB" & preset():
fakeValidator(100),
Epoch 11, Epoch 21
).isOk
# TODO: is that possible?
db.checkSlashableAttestation(
fakeValidator(100),
Epoch 9, Epoch 19
).isOk
block:
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 1,
fakeRoot(0)
fakeRoot(1)
)
db.registerAttestation(
@ -522,7 +391,15 @@ suiteReport "Slashing Protection DB" & preset():
wrappedTimedTest "SP for surrounding attestations":
block:
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
@ -541,12 +418,20 @@ suiteReport "Slashing Protection DB" & preset():
).error.kind == SurroundingVote
block:
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
Epoch 0, Epoch 1,
fakeRoot(20)
fakeRoot(1)
)
db.registerAttestation(
@ -567,24 +452,32 @@ suiteReport "Slashing Protection DB" & preset():
wrappedTimedTest "Attestation ordering #1698":
block:
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
Epoch 1, Epoch 2,
fakeRoot(20)
fakeRoot(2)
)
db.registerAttestation(
fakeValidator(100),
Epoch 8, Epoch 10,
fakeRoot(20)
fakeRoot(10)
)
db.registerAttestation(
fakeValidator(100),
Epoch 14, Epoch 15,
fakeRoot(20)
fakeRoot(15)
)
# The current list is, 2 -> 10 -> 15
@ -592,7 +485,7 @@ suiteReport "Slashing Protection DB" & preset():
db.registerAttestation(
fakeValidator(100),
Epoch 3, Epoch 6,
fakeRoot(20)
fakeRoot(6)
)
# The current list is 2 -> 6 -> 10 -> 15
@ -605,7 +498,15 @@ suiteReport "Slashing Protection DB" & preset():
wrappedTimedTest "Test valid attestation #1699":
block:
let db = SlashingProtectionDB.init(default(Eth2Digest), kvStore MemStoreRef.init())
sqlite3db_delete(TestDir, TestDbName)
let db = SlashingProtectionDB.init(
default(Eth2Digest),
TestDir,
TestDbName
)
defer:
db.close()
sqlite3db_delete(TestDir, TestDbName)
db.registerAttestation(
fakeValidator(100),
@ -616,7 +517,7 @@ suiteReport "Slashing Protection DB" & preset():
db.registerAttestation(
fakeValidator(100),
Epoch 40, Epoch 50,
fakeRoot(20)
fakeRoot(50)
)
check:

@ -1 +1 @@
Subproject commit 39966c051e0447d4ad6821d5a7646ad0f2aed842
Subproject commit 48fef39e8c1aa2aafc0a0b2847a9a05a62143ad2

2
vendor/nim-stew vendored

@ -1 +1 @@
Subproject commit 1401c34374fe7606dbf1252e361725415890f5f0
Subproject commit 6d3e6a21caf4110d0d432b82f14e41e0271cd76b