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package evidence_test
import (
"bytes"
"context"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
dbm "github.com/tendermint/tm-db"
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/tmhash"
"github.com/tendermint/tendermint/internal/evidence"
"github.com/tendermint/tendermint/internal/evidence/mocks"
sm "github.com/tendermint/tendermint/internal/state"
smmocks "github.com/tendermint/tendermint/internal/state/mocks"
"github.com/tendermint/tendermint/internal/test/factory"
"github.com/tendermint/tendermint/libs/log"
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
"github.com/tendermint/tendermint/types"
)
const (
defaultVotingPower = 10
)
func TestVerifyLightClientAttack_Lunatic(t *testing.T) {
const (
height int64 = 10
commonHeight int64 = 4
totalVals = 10
byzVals = 4
)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
attackTime := defaultEvidenceTime.Add(1 * time.Hour)
// create valid lunatic evidence
ev, trusted, common := makeLunaticEvidence(ctx,
t, height, commonHeight, totalVals, byzVals, totalVals-byzVals, defaultEvidenceTime, attackTime)
require.NoError(t, ev.ValidateBasic())
// good pass -> no error
err := evidence.VerifyLightClientAttack(ev, common.SignedHeader, trusted.SignedHeader, common.ValidatorSet,
defaultEvidenceTime.Add(2*time.Hour), 3*time.Hour)
assert.NoError(t, err)
// trusted and conflicting hashes are the same -> an error should be returned
err = evidence.VerifyLightClientAttack(ev, common.SignedHeader, ev.ConflictingBlock.SignedHeader, common.ValidatorSet,
defaultEvidenceTime.Add(2*time.Hour), 3*time.Hour)
assert.Error(t, err)
// evidence with different total validator power should fail
ev.TotalVotingPower = 1 * defaultVotingPower
err = evidence.VerifyLightClientAttack(ev, common.SignedHeader, trusted.SignedHeader, common.ValidatorSet,
defaultEvidenceTime.Add(2*time.Hour), 3*time.Hour)
assert.NoError(t, err)
assert.Error(t, ev.ValidateABCI(common.ValidatorSet, trusted.SignedHeader, defaultEvidenceTime))
// evidence without enough malicious votes should fail
ev, trusted, common = makeLunaticEvidence(ctx,
t, height, commonHeight, totalVals, byzVals-1, totalVals-byzVals, defaultEvidenceTime, attackTime)
err = evidence.VerifyLightClientAttack(ev, common.SignedHeader, trusted.SignedHeader, common.ValidatorSet,
defaultEvidenceTime.Add(2*time.Hour), 3*time.Hour)
assert.Error(t, err)
}
func TestVerify_LunaticAttackAgainstState(t *testing.T) {
const (
height int64 = 10
commonHeight int64 = 4
totalVals = 10
byzVals = 4
)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
attackTime := defaultEvidenceTime.Add(1 * time.Hour)
// create valid lunatic evidence
ev, trusted, common := makeLunaticEvidence(ctx,
t, height, commonHeight, totalVals, byzVals, totalVals-byzVals, defaultEvidenceTime, attackTime)
// now we try to test verification against state
state := sm.State{
LastBlockTime: defaultEvidenceTime.Add(2 * time.Hour),
LastBlockHeight: height + 1,
ConsensusParams: *types.DefaultConsensusParams(),
}
stateStore := &smmocks.Store{}
stateStore.On("LoadValidators", commonHeight).Return(common.ValidatorSet, nil)
stateStore.On("Load").Return(state, nil)
blockStore := &mocks.BlockStore{}
blockStore.On("LoadBlockMeta", commonHeight).Return(&types.BlockMeta{Header: *common.Header})
blockStore.On("LoadBlockMeta", height).Return(&types.BlockMeta{Header: *trusted.Header})
blockStore.On("LoadBlockCommit", commonHeight).Return(common.Commit)
blockStore.On("LoadBlockCommit", height).Return(trusted.Commit)
pool, err := evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
evList := types.EvidenceList{ev}
// check that the evidence pool correctly verifies the evidence
assert.NoError(t, pool.CheckEvidence(ctx, evList))
// as it was not originally in the pending bucket, it should now have been added
pendingEvs, _ := pool.PendingEvidence(state.ConsensusParams.Evidence.MaxBytes)
assert.Equal(t, 1, len(pendingEvs))
assert.Equal(t, ev, pendingEvs[0])
// if we submit evidence only against a single byzantine validator when we see there are more validators then this
// should return an error
ev.ByzantineValidators = ev.ByzantineValidators[:1]
t.Log(evList)
assert.Error(t, pool.CheckEvidence(ctx, evList))
// restore original byz vals
ev.ByzantineValidators = ev.GetByzantineValidators(common.ValidatorSet, trusted.SignedHeader)
// duplicate evidence should be rejected
evList = types.EvidenceList{ev, ev}
pool, err = evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
assert.Error(t, pool.CheckEvidence(ctx, evList))
// If evidence is submitted with an altered timestamp it should return an error
ev.Timestamp = defaultEvidenceTime.Add(1 * time.Minute)
pool, err = evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
require.NoError(t, setupEventBus(ctx, pool))
err = pool.AddEvidence(ctx, ev)
assert.Error(t, err)
ev.Timestamp = defaultEvidenceTime
// Evidence submitted with a different validator power should fail
ev.TotalVotingPower = 1
pool, err = evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
err = pool.AddEvidence(ctx, ev)
assert.Error(t, err)
ev.TotalVotingPower = common.ValidatorSet.TotalVotingPower()
}
func TestVerify_ForwardLunaticAttack(t *testing.T) {
const (
nodeHeight int64 = 8
attackHeight int64 = 10
commonHeight int64 = 4
totalVals = 10
byzVals = 5
)
attackTime := defaultEvidenceTime.Add(1 * time.Hour)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// create a forward lunatic attack
ev, trusted, common := makeLunaticEvidence(ctx,
t, attackHeight, commonHeight, totalVals, byzVals, totalVals-byzVals, defaultEvidenceTime, attackTime)
// now we try to test verification against state
state := sm.State{
LastBlockTime: defaultEvidenceTime.Add(2 * time.Hour),
LastBlockHeight: nodeHeight,
ConsensusParams: *types.DefaultConsensusParams(),
}
// modify trusted light block so that it is of a height less than the conflicting one
trusted.Header.Height = state.LastBlockHeight
trusted.Header.Time = state.LastBlockTime
stateStore := &smmocks.Store{}
stateStore.On("LoadValidators", commonHeight).Return(common.ValidatorSet, nil)
stateStore.On("Load").Return(state, nil)
blockStore := &mocks.BlockStore{}
blockStore.On("LoadBlockMeta", commonHeight).Return(&types.BlockMeta{Header: *common.Header})
blockStore.On("LoadBlockMeta", nodeHeight).Return(&types.BlockMeta{Header: *trusted.Header})
blockStore.On("LoadBlockMeta", attackHeight).Return(nil)
blockStore.On("LoadBlockCommit", commonHeight).Return(common.Commit)
blockStore.On("LoadBlockCommit", nodeHeight).Return(trusted.Commit)
blockStore.On("Height").Return(nodeHeight)
pool, err := evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
require.NoError(t, setupEventBus(ctx, pool))
// check that the evidence pool correctly verifies the evidence
assert.NoError(t, pool.CheckEvidence(ctx, types.EvidenceList{ev}))
// now we use a time which isn't able to contradict the FLA - thus we can't verify the evidence
oldBlockStore := &mocks.BlockStore{}
oldHeader := trusted.Header
oldHeader.Time = defaultEvidenceTime
oldBlockStore.On("LoadBlockMeta", commonHeight).Return(&types.BlockMeta{Header: *common.Header})
oldBlockStore.On("LoadBlockMeta", nodeHeight).Return(&types.BlockMeta{Header: *oldHeader})
oldBlockStore.On("LoadBlockMeta", attackHeight).Return(nil)
oldBlockStore.On("LoadBlockCommit", commonHeight).Return(common.Commit)
oldBlockStore.On("LoadBlockCommit", nodeHeight).Return(trusted.Commit)
oldBlockStore.On("Height").Return(nodeHeight)
require.Equal(t, defaultEvidenceTime, oldBlockStore.LoadBlockMeta(nodeHeight).Header.Time)
pool, err = evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, oldBlockStore, evidence.NopMetrics())
require.NoError(t, err)
assert.Error(t, pool.CheckEvidence(ctx, types.EvidenceList{ev}))
}
func TestVerifyLightClientAttack_Equivocation(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
conflictingVals, conflictingPrivVals := factory.ValidatorSet(ctx, t, 5, 10)
conflictingHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: 10,
Time: defaultEvidenceTime,
ValidatorsHash: conflictingVals.Hash(),
})
trustedHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: 10,
Time: defaultEvidenceTime,
ValidatorsHash: conflictingHeader.ValidatorsHash,
NextValidatorsHash: conflictingHeader.NextValidatorsHash,
ConsensusHash: conflictingHeader.ConsensusHash,
AppHash: conflictingHeader.AppHash,
LastResultsHash: conflictingHeader.LastResultsHash,
})
// we are simulating a duplicate vote attack where all the validators in the conflictingVals set
// except the last validator vote twice
blockID := factory.MakeBlockIDWithHash(conflictingHeader.Hash())
voteSet := types.NewVoteSet(evidenceChainID, 10, 1, tmproto.SignedMsgType(2), conflictingVals)
commit, err := factory.MakeCommit(ctx, blockID, 10, 1, voteSet, conflictingPrivVals[:4], defaultEvidenceTime)
require.NoError(t, err)
ev := &types.LightClientAttackEvidence{
ConflictingBlock: &types.LightBlock{
SignedHeader: &types.SignedHeader{
Header: conflictingHeader,
Commit: commit,
},
ValidatorSet: conflictingVals,
},
CommonHeight: 10,
ByzantineValidators: conflictingVals.Validators[:4],
TotalVotingPower: 50,
Timestamp: defaultEvidenceTime,
}
trustedBlockID := makeBlockID(trustedHeader.Hash(), 1000, []byte("partshash"))
trustedVoteSet := types.NewVoteSet(evidenceChainID, 10, 1, tmproto.SignedMsgType(2), conflictingVals)
trustedCommit, err := factory.MakeCommit(ctx, trustedBlockID, 10, 1,
trustedVoteSet, conflictingPrivVals, defaultEvidenceTime)
require.NoError(t, err)
trustedSignedHeader := &types.SignedHeader{
Header: trustedHeader,
Commit: trustedCommit,
}
// good pass -> no error
require.NoError(t, evidence.VerifyLightClientAttack(ev, trustedSignedHeader, trustedSignedHeader, conflictingVals,
defaultEvidenceTime.Add(1*time.Minute), 2*time.Hour))
// trusted and conflicting hashes are the same -> an error should be returned
assert.Error(t, evidence.VerifyLightClientAttack(ev, trustedSignedHeader, ev.ConflictingBlock.SignedHeader, conflictingVals,
defaultEvidenceTime.Add(1*time.Minute), 2*time.Hour))
// conflicting header has different next validators hash which should have been correctly derived from
// the previous round
ev.ConflictingBlock.Header.NextValidatorsHash = crypto.CRandBytes(tmhash.Size)
assert.Error(t, evidence.VerifyLightClientAttack(ev, trustedSignedHeader, trustedSignedHeader, nil,
defaultEvidenceTime.Add(1*time.Minute), 2*time.Hour))
// revert next validators hash
ev.ConflictingBlock.Header.NextValidatorsHash = trustedHeader.NextValidatorsHash
state := sm.State{
LastBlockTime: defaultEvidenceTime.Add(1 * time.Minute),
LastBlockHeight: 11,
ConsensusParams: *types.DefaultConsensusParams(),
}
stateStore := &smmocks.Store{}
stateStore.On("LoadValidators", int64(10)).Return(conflictingVals, nil)
stateStore.On("Load").Return(state, nil)
blockStore := &mocks.BlockStore{}
blockStore.On("LoadBlockMeta", int64(10)).Return(&types.BlockMeta{Header: *trustedHeader})
blockStore.On("LoadBlockCommit", int64(10)).Return(trustedCommit)
pool, err := evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
require.NoError(t, setupEventBus(ctx, pool))
evList := types.EvidenceList{ev}
err = pool.CheckEvidence(ctx, evList)
assert.NoError(t, err)
pendingEvs, _ := pool.PendingEvidence(state.ConsensusParams.Evidence.MaxBytes)
assert.Equal(t, 1, len(pendingEvs))
}
func TestVerifyLightClientAttack_Amnesia(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
var height int64 = 10
conflictingVals, conflictingPrivVals := factory.ValidatorSet(ctx, t, 5, 10)
conflictingHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: height,
Time: defaultEvidenceTime,
ValidatorsHash: conflictingVals.Hash(),
})
trustedHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: height,
Time: defaultEvidenceTime,
ValidatorsHash: conflictingHeader.ValidatorsHash,
NextValidatorsHash: conflictingHeader.NextValidatorsHash,
ConsensusHash: conflictingHeader.ConsensusHash,
AppHash: conflictingHeader.AppHash,
LastResultsHash: conflictingHeader.LastResultsHash,
})
// we are simulating an amnesia attack where all the validators in the conflictingVals set
// except the last validator vote twice. However this time the commits are of different rounds.
blockID := makeBlockID(conflictingHeader.Hash(), 1000, []byte("partshash"))
voteSet := types.NewVoteSet(evidenceChainID, height, 0, tmproto.SignedMsgType(2), conflictingVals)
commit, err := factory.MakeCommit(ctx, blockID, height, 0, voteSet, conflictingPrivVals, defaultEvidenceTime)
require.NoError(t, err)
ev := &types.LightClientAttackEvidence{
ConflictingBlock: &types.LightBlock{
SignedHeader: &types.SignedHeader{
Header: conflictingHeader,
Commit: commit,
},
ValidatorSet: conflictingVals,
},
CommonHeight: height,
ByzantineValidators: nil, // with amnesia evidence no validators are submitted as abci evidence
TotalVotingPower: 50,
Timestamp: defaultEvidenceTime,
}
trustedBlockID := makeBlockID(trustedHeader.Hash(), 1000, []byte("partshash"))
trustedVoteSet := types.NewVoteSet(evidenceChainID, height, 1, tmproto.SignedMsgType(2), conflictingVals)
trustedCommit, err := factory.MakeCommit(ctx, trustedBlockID, height, 1,
trustedVoteSet, conflictingPrivVals, defaultEvidenceTime)
require.NoError(t, err)
trustedSignedHeader := &types.SignedHeader{
Header: trustedHeader,
Commit: trustedCommit,
}
// good pass -> no error
require.NoError(t, evidence.VerifyLightClientAttack(ev, trustedSignedHeader, trustedSignedHeader, conflictingVals,
defaultEvidenceTime.Add(1*time.Minute), 2*time.Hour))
// trusted and conflicting hashes are the same -> an error should be returned
assert.Error(t, evidence.VerifyLightClientAttack(ev, trustedSignedHeader, ev.ConflictingBlock.SignedHeader, conflictingVals,
defaultEvidenceTime.Add(1*time.Minute), 2*time.Hour))
state := sm.State{
LastBlockTime: defaultEvidenceTime.Add(1 * time.Minute),
LastBlockHeight: 11,
ConsensusParams: *types.DefaultConsensusParams(),
}
stateStore := &smmocks.Store{}
stateStore.On("LoadValidators", int64(10)).Return(conflictingVals, nil)
stateStore.On("Load").Return(state, nil)
blockStore := &mocks.BlockStore{}
blockStore.On("LoadBlockMeta", int64(10)).Return(&types.BlockMeta{Header: *trustedHeader})
blockStore.On("LoadBlockCommit", int64(10)).Return(trustedCommit)
pool, err := evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
require.NoError(t, setupEventBus(ctx, pool))
evList := types.EvidenceList{ev}
err = pool.CheckEvidence(ctx, evList)
assert.NoError(t, err)
pendingEvs, _ := pool.PendingEvidence(state.ConsensusParams.Evidence.MaxBytes)
assert.Equal(t, 1, len(pendingEvs))
}
type voteData struct {
vote1 *types.Vote
vote2 *types.Vote
valid bool
}
func TestVerifyDuplicateVoteEvidence(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
val := types.NewMockPV()
val2 := types.NewMockPV()
valSet := types.NewValidatorSet([]*types.Validator{val.ExtractIntoValidator(ctx, 1)})
blockID := makeBlockID([]byte("blockhash"), 1000, []byte("partshash"))
blockID2 := makeBlockID([]byte("blockhash2"), 1000, []byte("partshash"))
blockID3 := makeBlockID([]byte("blockhash"), 10000, []byte("partshash"))
blockID4 := makeBlockID([]byte("blockhash"), 10000, []byte("partshash2"))
const chainID = "mychain"
vote1 := makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID, defaultEvidenceTime)
v1 := vote1.ToProto()
err := val.SignVote(ctx, chainID, v1)
require.NoError(t, err)
badVote := makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID, defaultEvidenceTime)
bv := badVote.ToProto()
err = val2.SignVote(ctx, chainID, bv)
require.NoError(t, err)
vote1.Signature = v1.Signature
badVote.Signature = bv.Signature
cases := []voteData{
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID2, defaultEvidenceTime), true}, // different block ids
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID3, defaultEvidenceTime), true},
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID4, defaultEvidenceTime), true},
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID, defaultEvidenceTime), false}, // wrong block id
{vote1, makeVote(ctx, t, val, "mychain2", 0, 10, 2, 1, blockID2, defaultEvidenceTime), false}, // wrong chain id
{vote1, makeVote(ctx, t, val, chainID, 0, 11, 2, 1, blockID2, defaultEvidenceTime), false}, // wrong height
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 3, 1, blockID2, defaultEvidenceTime), false}, // wrong round
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 2, 2, blockID2, defaultEvidenceTime), false}, // wrong step
{vote1, makeVote(ctx, t, val2, chainID, 0, 10, 2, 1, blockID2, defaultEvidenceTime), false}, // wrong validator
// a different vote time doesn't matter
{vote1, makeVote(ctx, t, val, chainID, 0, 10, 2, 1, blockID2, time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC)), true},
{vote1, badVote, false}, // signed by wrong key
}
require.NoError(t, err)
for _, c := range cases {
ev := &types.DuplicateVoteEvidence{
VoteA: c.vote1,
VoteB: c.vote2,
ValidatorPower: 1,
TotalVotingPower: 1,
Timestamp: defaultEvidenceTime,
}
if c.valid {
assert.Nil(t, evidence.VerifyDuplicateVote(ev, chainID, valSet), "evidence should be valid")
} else {
assert.NotNil(t, evidence.VerifyDuplicateVote(ev, chainID, valSet), "evidence should be invalid")
}
}
// create good evidence and correct validator power
goodEv, err := types.NewMockDuplicateVoteEvidenceWithValidator(ctx, 10, defaultEvidenceTime, val, chainID)
require.NoError(t, err)
goodEv.ValidatorPower = 1
goodEv.TotalVotingPower = 1
badEv, err := types.NewMockDuplicateVoteEvidenceWithValidator(ctx, 10, defaultEvidenceTime, val, chainID)
require.NoError(t, err)
badTimeEv, err := types.NewMockDuplicateVoteEvidenceWithValidator(ctx, 10, defaultEvidenceTime.Add(1*time.Minute), val, chainID)
require.NoError(t, err)
badTimeEv.ValidatorPower = 1
badTimeEv.TotalVotingPower = 1
state := sm.State{
ChainID: chainID,
LastBlockTime: defaultEvidenceTime.Add(1 * time.Minute),
LastBlockHeight: 11,
ConsensusParams: *types.DefaultConsensusParams(),
}
stateStore := &smmocks.Store{}
stateStore.On("LoadValidators", int64(10)).Return(valSet, nil)
stateStore.On("Load").Return(state, nil)
blockStore := &mocks.BlockStore{}
blockStore.On("LoadBlockMeta", int64(10)).Return(&types.BlockMeta{Header: types.Header{Time: defaultEvidenceTime}})
pool, err := evidence.NewPool(log.TestingLogger(), dbm.NewMemDB(), stateStore, blockStore, evidence.NopMetrics())
require.NoError(t, err)
require.NoError(t, setupEventBus(ctx, pool))
evList := types.EvidenceList{goodEv}
err = pool.CheckEvidence(ctx, evList)
assert.NoError(t, err)
// evidence with a different validator power should fail
evList = types.EvidenceList{badEv}
err = pool.CheckEvidence(ctx, evList)
assert.Error(t, err)
// evidence with a different timestamp should fail
evList = types.EvidenceList{badTimeEv}
err = pool.CheckEvidence(ctx, evList)
assert.Error(t, err)
}
func makeLunaticEvidence(
ctx context.Context,
t *testing.T,
height, commonHeight int64,
totalVals, byzVals, phantomVals int,
commonTime, attackTime time.Time,
) (ev *types.LightClientAttackEvidence, trusted *types.LightBlock, common *types.LightBlock) {
t.Helper()
commonValSet, commonPrivVals := factory.ValidatorSet(ctx, t, totalVals, defaultVotingPower)
require.Greater(t, totalVals, byzVals)
// extract out the subset of byzantine validators in the common validator set
byzValSet, byzPrivVals := commonValSet.Validators[:byzVals], commonPrivVals[:byzVals]
phantomValSet, phantomPrivVals := factory.ValidatorSet(ctx, t, phantomVals, defaultVotingPower)
conflictingVals := phantomValSet.Copy()
require.NoError(t, conflictingVals.UpdateWithChangeSet(byzValSet))
conflictingPrivVals := append(phantomPrivVals, byzPrivVals...)
conflictingPrivVals = orderPrivValsByValSet(ctx, t, conflictingVals, conflictingPrivVals)
commonHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: commonHeight,
Time: commonTime,
})
trustedHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: height,
Time: defaultEvidenceTime,
})
conflictingHeader := factory.MakeHeader(t, &types.Header{
ChainID: evidenceChainID,
Height: height,
Time: attackTime,
ValidatorsHash: conflictingVals.Hash(),
})
blockID := factory.MakeBlockIDWithHash(conflictingHeader.Hash())
voteSet := types.NewVoteSet(evidenceChainID, height, 1, tmproto.SignedMsgType(2), conflictingVals)
commit, err := factory.MakeCommit(ctx, blockID, height, 1, voteSet, conflictingPrivVals, defaultEvidenceTime)
require.NoError(t, err)
ev = &types.LightClientAttackEvidence{
ConflictingBlock: &types.LightBlock{
SignedHeader: &types.SignedHeader{
Header: conflictingHeader,
Commit: commit,
},
ValidatorSet: conflictingVals,
},
CommonHeight: commonHeight,
TotalVotingPower: commonValSet.TotalVotingPower(),
ByzantineValidators: byzValSet,
Timestamp: commonTime,
}
common = &types.LightBlock{
SignedHeader: &types.SignedHeader{
Header: commonHeader,
// we can leave this empty because we shouldn't be checking this
Commit: &types.Commit{},
},
ValidatorSet: commonValSet,
}
trustedBlockID := factory.MakeBlockIDWithHash(trustedHeader.Hash())
trustedVals, privVals := factory.ValidatorSet(ctx, t, totalVals, defaultVotingPower)
trustedVoteSet := types.NewVoteSet(evidenceChainID, height, 1, tmproto.SignedMsgType(2), trustedVals)
trustedCommit, err := factory.MakeCommit(ctx, trustedBlockID, height, 1, trustedVoteSet, privVals, defaultEvidenceTime)
require.NoError(t, err)
trusted = &types.LightBlock{
SignedHeader: &types.SignedHeader{
Header: trustedHeader,
Commit: trustedCommit,
},
ValidatorSet: trustedVals,
}
return ev, trusted, common
}
func makeVote(
ctx context.Context,
t *testing.T, val types.PrivValidator, chainID string, valIndex int32, height int64,
round int32, step int, blockID types.BlockID, time time.Time,
) *types.Vote {
pubKey, err := val.GetPubKey(ctx)
require.NoError(t, err)
v := &types.Vote{
ValidatorAddress: pubKey.Address(),
ValidatorIndex: valIndex,
Height: height,
Round: round,
Type: tmproto.SignedMsgType(step),
BlockID: blockID,
Timestamp: time,
}
vpb := v.ToProto()
err = val.SignVote(ctx, chainID, vpb)
require.NoError(t, err)
v.Signature = vpb.Signature
return v
}
func makeBlockID(hash []byte, partSetSize uint32, partSetHash []byte) types.BlockID {
var (
h = make([]byte, tmhash.Size)
psH = make([]byte, tmhash.Size)
)
copy(h, hash)
copy(psH, partSetHash)
return types.BlockID{
Hash: h,
PartSetHeader: types.PartSetHeader{
Total: partSetSize,
Hash: psH,
},
}
}
func orderPrivValsByValSet(ctx context.Context, t *testing.T, vals *types.ValidatorSet, privVals []types.PrivValidator) []types.PrivValidator {
output := make([]types.PrivValidator, len(privVals))
for idx, v := range vals.Validators {
for _, p := range privVals {
pubKey, err := p.GetPubKey(ctx)
require.NoError(t, err)
if bytes.Equal(v.Address, pubKey.Address()) {
output[idx] = p
break
}
}
require.NotEmpty(t, output[idx])
}
return output
}