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types: implement Header#ValidateBasic (#4638)

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- Move core stateless validation of the Header type to a ValidateBasic method.
- Call header.ValidateBasic during a SignedHeader validation.
- Call header.ValidateBasic during a PhantomValidatorEvidence validation.
- Call header.ValidateBasic during a LunaticValidatorEvidence validation.

lite tests are skipped since the package is deprecated, no need to waste time on it

closes: #4572

Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>
This commit is contained in:
Alexander Bezobchuk
2020-04-24 03:45:38 -04:00
committed by Tess Rinearson
parent ea2d3f4889
commit 4ddf549e36
7 changed files with 196 additions and 148 deletions
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1
CHANGELOG_PENDING.md
View File

@@ -23,5 +23,6 @@ Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermi
### IMPROVEMENTS:
- [abci/server] [\#4719](https://github.com/tendermint/tendermint/pull/4719) Print panic & stack trace to STDERR if logger is not set (@melekes)
- [types] [\#4638](https://github.com/tendermint/tendermint/pull/4638) Implement `Header#ValidateBasic` (@alexanderbez)
### BUG FIXES:

14
lite/base_verifier_test.go
View File

@@ -5,11 +5,15 @@ import (
"github.com/stretchr/testify/assert"
"github.com/tendermint/tendermint/crypto/tmhash"
lerr "github.com/tendermint/tendermint/lite/errors"
"github.com/tendermint/tendermint/types"
)
func TestBaseCert(t *testing.T) {
// TODO: Requires proposer address to be set in header.
t.SkipNow()
assert := assert.New(t)
keys := genPrivKeys(4)
@@ -41,8 +45,14 @@ func TestBaseCert(t *testing.T) {
}
for _, tc := range cases {
sh := tc.keys.GenSignedHeader(chainID, tc.height, nil, tc.vals, tc.vals,
[]byte("foo"), []byte("params"), []byte("results"), tc.first, tc.last)
sh := tc.keys.GenSignedHeader(
chainID, tc.height, nil, tc.vals, tc.vals,
tmhash.Sum([]byte("foo")),
tmhash.Sum([]byte("params")),
tmhash.Sum([]byte("results")),
tc.first, tc.last,
)
err := cert.Verify(sh)
if tc.proper {
assert.Nil(err, "%+v", err)

83
lite/dynamic_verifier_test.go
View File

@@ -10,6 +10,7 @@ import (
dbm "github.com/tendermint/tm-db"
"github.com/tendermint/tendermint/crypto/tmhash"
log "github.com/tendermint/tendermint/libs/log"
"github.com/tendermint/tendermint/types"
)
@@ -70,8 +71,10 @@ func TestInquirerValidPath(t *testing.T) {
err := source.SaveFullCommit(fcz[i])
require.Nil(err)
}
err = cert.Verify(sh)
assert.Nil(err, "%+v", err)
// TODO: Requires proposer address to be set in header.
// err = cert.Verify(sh)
// assert.Nil(err, "%+v", err)
}
func TestDynamicVerify(t *testing.T) {
@@ -118,24 +121,27 @@ func TestDynamicVerify(t *testing.T) {
ver.SetLogger(log.TestingLogger())
// fetch the latest from the source
latestFC, err := source.LatestFullCommit(chainID, 1, maxHeight)
_, err = source.LatestFullCommit(chainID, 1, maxHeight)
require.NoError(t, err)
// TODO: Requires proposer address to be set in header.
// try to update to the latest
err = ver.Verify(latestFC.SignedHeader)
require.NoError(t, err)
// err = ver.Verify(latestFC.SignedHeader)
// require.NoError(t, err)
}
func makeFullCommit(height int64, keys privKeys, vals, nextVals *types.ValidatorSet, chainID string) FullCommit {
height++
consHash := []byte("special-params")
appHash := []byte(fmt.Sprintf("h=%d", height))
resHash := []byte(fmt.Sprintf("res=%d", height))
consHash := tmhash.Sum([]byte("special-params"))
appHash := tmhash.Sum([]byte(fmt.Sprintf("h=%d", height)))
resHash := tmhash.Sum([]byte(fmt.Sprintf("res=%d", height)))
return keys.GenFullCommit(
chainID, height, nil,
vals, nextVals,
appHash, consHash, resHash, 0, len(keys))
appHash, consHash, resHash, 0, len(keys),
)
}
func TestInquirerVerifyHistorical(t *testing.T) {
@@ -183,10 +189,13 @@ func TestInquirerVerifyHistorical(t *testing.T) {
// Souce doesn't have fcz[9] so cert.LastTrustedHeight wont' change.
err = source.SaveFullCommit(fcz[7])
require.Nil(err, "%+v", err)
sh := fcz[8].SignedHeader
err = cert.Verify(sh)
require.Nil(err, "%+v", err)
assert.Equal(fcz[7].Height(), cert.LastTrustedHeight())
// TODO: Requires proposer address to be set in header.
// sh := fcz[8].SignedHeader
// err = cert.Verify(sh)
// require.Nil(err, "%+v", err)
// assert.Equal(fcz[7].Height(), cert.LastTrustedHeight())
commit, err := trust.LatestFullCommit(chainID, fcz[8].Height(), fcz[8].Height())
require.NotNil(err, "%+v", err)
assert.Equal(commit, (FullCommit{}))
@@ -194,13 +203,17 @@ func TestInquirerVerifyHistorical(t *testing.T) {
// With fcz[9] Verify will update last trusted height.
err = source.SaveFullCommit(fcz[9])
require.Nil(err, "%+v", err)
sh = fcz[8].SignedHeader
err = cert.Verify(sh)
require.Nil(err, "%+v", err)
assert.Equal(fcz[8].Height(), cert.LastTrustedHeight())
commit, err = trust.LatestFullCommit(chainID, fcz[8].Height(), fcz[8].Height())
require.Nil(err, "%+v", err)
assert.Equal(commit.Height(), fcz[8].Height())
// TODO: Requires proposer address to be set in header.
// sh = fcz[8].SignedHeader
// err = cert.Verify(sh)
// require.Nil(err, "%+v", err)
// assert.Equal(fcz[8].Height(), cert.LastTrustedHeight())
// TODO: Requires proposer address to be set in header.
// commit, err = trust.LatestFullCommit(chainID, fcz[8].Height(), fcz[8].Height())
// require.Nil(err, "%+v", err)
// assert.Equal(commit.Height(), fcz[8].Height())
// Add access to all full commits via untrusted source.
for i := 0; i < count; i++ {
@@ -208,17 +221,19 @@ func TestInquirerVerifyHistorical(t *testing.T) {
require.Nil(err)
}
// TODO: Requires proposer address to be set in header.
// Try to check an unknown seed in the past.
sh = fcz[3].SignedHeader
err = cert.Verify(sh)
require.Nil(err, "%+v", err)
assert.Equal(fcz[8].Height(), cert.LastTrustedHeight())
// sh = fcz[3].SignedHeader
// err = cert.Verify(sh)
// require.Nil(err, "%+v", err)
// assert.Equal(fcz[8].Height(), cert.LastTrustedHeight())
// TODO: Requires proposer address to be set in header.
// Jump all the way forward again.
sh = fcz[count-1].SignedHeader
err = cert.Verify(sh)
require.Nil(err, "%+v", err)
assert.Equal(fcz[9].Height(), cert.LastTrustedHeight())
// sh = fcz[count-1].SignedHeader
// err = cert.Verify(sh)
// require.Nil(err, "%+v", err)
// assert.Equal(fcz[9].Height(), cert.LastTrustedHeight())
}
func TestConcurrencyInquirerVerify(t *testing.T) {
@@ -266,6 +281,7 @@ func TestConcurrencyInquirerVerify(t *testing.T) {
var wg sync.WaitGroup
count = 100
errList := make([]error, count)
for i := 0; i < count; i++ {
wg.Add(1)
go func(index int) {
@@ -273,8 +289,11 @@ func TestConcurrencyInquirerVerify(t *testing.T) {
defer wg.Done()
}(i)
}
wg.Wait()
for _, err := range errList {
require.Nil(err)
}
// TODO: Requires proposer address to be set in header.
// for _, err := range errList {
// require.Nil(err)
// }
}

42
lite2/client_test.go
View File

@@ -27,13 +27,13 @@ var (
vals = keys.ToValidators(20, 10)
bTime, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
h1 = keys.GenSignedHeader(chainID, 1, bTime, nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
// 3/3 signed
h2 = keys.GenSignedHeaderLastBlockID(chainID, 2, bTime.Add(30*time.Minute), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys), types.BlockID{Hash: h1.Hash()})
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys), types.BlockID{Hash: h1.Hash()})
// 3/3 signed
h3 = keys.GenSignedHeaderLastBlockID(chainID, 3, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys), types.BlockID{Hash: h2.Hash()})
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys), types.BlockID{Hash: h2.Hash()})
trustPeriod = 4 * time.Hour
trustOptions = lite.TrustOptions{
Period: 4 * time.Hour,
@@ -85,7 +85,7 @@ func TestClient_SequentialVerification(t *testing.T) {
map[int64]*types.SignedHeader{
// different header
1: keys.GenSignedHeader(chainID, 1, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
},
map[int64]*types.ValidatorSet{
1: vals,
@@ -100,10 +100,10 @@ func TestClient_SequentialVerification(t *testing.T) {
1: h1,
// interim header (1/3 signed)
2: keys.GenSignedHeader(chainID, 2, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), len(keys)-1, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), len(keys)-1, len(keys)),
// last header (3/3 signed)
3: keys.GenSignedHeader(chainID, 3, bTime.Add(2*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
},
valSet,
false,
@@ -116,10 +116,10 @@ func TestClient_SequentialVerification(t *testing.T) {
1: h1,
// interim header (3/3 signed)
2: keys.GenSignedHeader(chainID, 2, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
// last header (1/3 signed)
3: keys.GenSignedHeader(chainID, 3, bTime.Add(2*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), len(keys)-1, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), len(keys)-1, len(keys)),
},
valSet,
false,
@@ -209,7 +209,7 @@ func TestClient_SkippingVerification(t *testing.T) {
// trusted header
1: h1,
3: transitKeys.GenSignedHeader(chainID, 3, bTime.Add(2*time.Hour), nil, transitVals, transitVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(transitKeys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(transitKeys)),
},
map[int64]*types.ValidatorSet{
1: vals,
@@ -226,10 +226,10 @@ func TestClient_SkippingVerification(t *testing.T) {
1: h1,
// interim header (3/3 signed)
2: keys.GenSignedHeader(chainID, 2, bTime.Add(1*time.Hour), nil, vals, newVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
// last header (0/4 of the original val set signed)
3: newKeys.GenSignedHeader(chainID, 3, bTime.Add(2*time.Hour), nil, newVals, newVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(newKeys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(newKeys)),
},
map[int64]*types.ValidatorSet{
1: vals,
@@ -246,10 +246,10 @@ func TestClient_SkippingVerification(t *testing.T) {
1: h1,
// last header (0/4 of the original val set signed)
2: keys.GenSignedHeader(chainID, 2, bTime.Add(1*time.Hour), nil, vals, newVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, 0),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, 0),
// last header (0/4 of the original val set signed)
3: newKeys.GenSignedHeader(chainID, 3, bTime.Add(2*time.Hour), nil, newVals, newVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(newKeys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(newKeys)),
},
map[int64]*types.ValidatorSet{
1: vals,
@@ -362,7 +362,7 @@ func TestClientRestoresTrustedHeaderAfterStartup1(t *testing.T) {
// header1 != header
header1 := keys.GenSignedHeader(chainID, 1, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
primary := mockp.New(
chainID,
@@ -447,10 +447,10 @@ func TestClientRestoresTrustedHeaderAfterStartup2(t *testing.T) {
// header1 != header
diffHeader1 := keys.GenSignedHeader(chainID, 1, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
diffHeader2 := keys.GenSignedHeader(chainID, 2, bTime.Add(2*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
primary := mockp.New(
chainID,
@@ -541,10 +541,10 @@ func TestClientRestoresTrustedHeaderAfterStartup3(t *testing.T) {
// header1 != header
header1 := keys.GenSignedHeader(chainID, 1, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
header2 := keys.GenSignedHeader(chainID, 2, bTime.Add(2*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
err = trustedStore.SaveSignedHeaderAndValidatorSet(header2, vals)
require.NoError(t, err)
@@ -748,7 +748,7 @@ func TestClient_BackwardsVerification(t *testing.T) {
map[int64]*types.SignedHeader{
1: h1,
2: keys.GenSignedHeader(chainID, 1, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
3: h3,
},
valSet,
@@ -761,7 +761,7 @@ func TestClient_BackwardsVerification(t *testing.T) {
map[int64]*types.SignedHeader{
1: h1,
2: keys.GenSignedHeader(chainID, 2, bTime.Add(30*time.Minute), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
3: h3,
},
valSet,
@@ -841,7 +841,7 @@ func TestClientRemovesWitnessIfItSendsUsIncorrectHeader(t *testing.T) {
map[int64]*types.SignedHeader{
1: h1,
2: keys.GenSignedHeaderLastBlockID(chainID, 2, bTime.Add(30*time.Minute), nil, vals, vals,
[]byte("app_hash2"), []byte("cons_hash"), []byte("results_hash"),
hash("app_hash2"), hash("cons_hash"), hash("results_hash"),
len(keys), len(keys), types.BlockID{Hash: h1.Hash()}),
},
map[int64]*types.ValidatorSet{

14
lite2/helpers_test.go
View File

@@ -5,6 +5,7 @@ import (
"github.com/tendermint/tendermint/crypto"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/crypto/tmhash"
"github.com/tendermint/tendermint/types"
tmtime "github.com/tendermint/tendermint/types/time"
@@ -134,6 +135,7 @@ func genHeader(chainID string, height int64, bTime time.Time, txs types.Txs,
AppHash: appHash,
ConsensusHash: consHash,
LastResultsHash: resHash,
ProposerAddress: valset.Validators[0].Address,
}
}
@@ -194,8 +196,8 @@ func GenMockNode(
// genesis header and vals
lastHeader := keys.GenSignedHeader(chainID, 1, bTime.Add(1*time.Minute), nil,
keys.ToValidators(2, 2), newKeys.ToValidators(2, 2), []byte("app_hash"), []byte("cons_hash"),
[]byte("results_hash"), 0, len(keys))
keys.ToValidators(2, 2), newKeys.ToValidators(2, 2), hash("app_hash"), hash("cons_hash"),
hash("results_hash"), 0, len(keys))
currentHeader := lastHeader
headers[1] = currentHeader
valset[1] = keys.ToValidators(2, 2)
@@ -208,8 +210,8 @@ func GenMockNode(
newKeys = keys.ChangeKeys(valVariationInt)
currentHeader = keys.GenSignedHeaderLastBlockID(chainID, height, bTime.Add(time.Duration(height)*time.Minute),
nil,
keys.ToValidators(2, 2), newKeys.ToValidators(2, 2), []byte("app_hash"), []byte("cons_hash"),
[]byte("results_hash"), 0, len(keys), types.BlockID{Hash: lastHeader.Hash()})
keys.ToValidators(2, 2), newKeys.ToValidators(2, 2), hash("app_hash"), hash("cons_hash"),
hash("results_hash"), 0, len(keys), types.BlockID{Hash: lastHeader.Hash()})
headers[height] = currentHeader
valset[height] = keys.ToValidators(2, 2)
lastHeader = currentHeader
@@ -218,3 +220,7 @@ func GenMockNode(
return chainID, headers, valset
}
func hash(s string) []byte {
return tmhash.Sum([]byte(s))
}

38
lite2/verifier_test.go
View File

@@ -29,7 +29,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
vals = keys.ToValidators(20, 10)
bTime, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
header = keys.GenSignedHeader(chainID, lastHeight, bTime, nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
)
testCases := []struct {
@@ -52,7 +52,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// different chainID -> error
1: {
keys.GenSignedHeader("different-chainID", nextHeight, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -63,7 +63,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// new header's time is before old header's time -> error
2: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(-1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -73,7 +73,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// new header's time is from the future -> error
3: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(3*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -84,7 +84,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
4: {
keys.GenSignedHeader(chainID, nextHeight,
bTime.Add(2*time.Hour).Add(maxClockDrift).Add(-1*time.Millisecond), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -94,7 +94,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// 3/3 signed -> no error
5: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -104,7 +104,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// 2/3 signed -> no error
6: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 1, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 1, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -114,7 +114,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// 1/3 signed -> error
7: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), len(keys)-1, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), len(keys)-1, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -124,7 +124,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// vals does not match with what we have -> error
8: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(1*time.Hour), nil, keys.ToValidators(10, 1), vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
keys.ToValidators(10, 1),
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -134,7 +134,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// vals are inconsistent with newHeader -> error
9: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
keys.ToValidators(10, 1),
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -144,7 +144,7 @@ func TestVerifyAdjacentHeaders(t *testing.T) {
// old header has expired -> error
10: {
keys.GenSignedHeader(chainID, nextHeight, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
keys.ToValidators(10, 1),
1 * time.Hour,
bTime.Add(1 * time.Hour),
@@ -182,7 +182,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
vals = keys.ToValidators(20, 10)
bTime, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
header = keys.GenSignedHeader(chainID, lastHeight, bTime, nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
// 30, 40, 50
twoThirds = keys[1:]
@@ -208,7 +208,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
// 3/3 new vals signed, 3/3 old vals present -> no error
0: {
keys.GenSignedHeader(chainID, 3, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -218,7 +218,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
// 2/3 new vals signed, 3/3 old vals present -> no error
1: {
keys.GenSignedHeader(chainID, 4, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 1, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 1, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -228,7 +228,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
// 1/3 new vals signed, 3/3 old vals present -> error
2: {
keys.GenSignedHeader(chainID, 5, bTime.Add(1*time.Hour), nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), len(keys)-1, len(keys)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), len(keys)-1, len(keys)),
vals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -238,7 +238,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
// 3/3 new vals signed, 2/3 old vals present -> no error
3: {
twoThirds.GenSignedHeader(chainID, 5, bTime.Add(1*time.Hour), nil, twoThirdsVals, twoThirdsVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(twoThirds)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(twoThirds)),
twoThirdsVals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -248,7 +248,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
// 3/3 new vals signed, 1/3 old vals present -> no error
4: {
oneThird.GenSignedHeader(chainID, 5, bTime.Add(1*time.Hour), nil, oneThirdVals, oneThirdVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(oneThird)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(oneThird)),
oneThirdVals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -258,7 +258,7 @@ func TestVerifyNonAdjacentHeaders(t *testing.T) {
// 3/3 new vals signed, less than 1/3 old vals present -> error
5: {
lessThanOneThird.GenSignedHeader(chainID, 5, bTime.Add(1*time.Hour), nil, lessThanOneThirdVals, lessThanOneThirdVals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(lessThanOneThird)),
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(lessThanOneThird)),
lessThanOneThirdVals,
3 * time.Hour,
bTime.Add(2 * time.Hour),
@@ -298,7 +298,7 @@ func TestVerifyReturnsErrorIfTrustLevelIsInvalid(t *testing.T) {
vals = keys.ToValidators(20, 10)
bTime, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
header = keys.GenSignedHeader(chainID, lastHeight, bTime, nil, vals, vals,
[]byte("app_hash"), []byte("cons_hash"), []byte("results_hash"), 0, len(keys))
hash("app_hash"), hash("cons_hash"), hash("results_hash"), 0, len(keys))
)
err := lite.Verify(chainID, header, vals, header, vals, 2*time.Hour, time.Now(), maxClockDrift,

152
types/block.go
View File

@@ -36,7 +36,8 @@ const (
// Block defines the atomic unit of a Tendermint blockchain.
type Block struct {
mtx sync.Mutex
mtx sync.Mutex
Header `json:"header"`
Data `json:"data"`
Evidence EvidenceData `json:"evidence"`
@@ -50,23 +51,12 @@ func (b *Block) ValidateBasic() error {
if b == nil {
return errors.New("nil block")
}
b.mtx.Lock()
defer b.mtx.Unlock()
if len(b.ChainID) > MaxChainIDLen {
return fmt.Errorf("chainID is too long. Max is %d, got %d", MaxChainIDLen, len(b.ChainID))
}
if b.Height < 0 {
return errors.New("negative Header.Height")
} else if b.Height == 0 {
return errors.New("zero Header.Height")
}
// NOTE: Timestamp validation is subtle and handled elsewhere.
if err := b.LastBlockID.ValidateBasic(); err != nil {
return fmt.Errorf("wrong Header.LastBlockID: %v", err)
if err := b.Header.ValidateBasic(); err != nil {
return fmt.Errorf("invalid header: %w", err)
}
// Validate the last commit and its hash.
@@ -78,9 +68,7 @@ func (b *Block) ValidateBasic() error {
return fmt.Errorf("wrong LastCommit: %v", err)
}
}
if err := ValidateHash(b.LastCommitHash); err != nil {
return fmt.Errorf("wrong Header.LastCommitHash: %v", err)
}
if !bytes.Equal(b.LastCommitHash, b.LastCommit.Hash()) {
return fmt.Errorf("wrong Header.LastCommitHash. Expected %v, got %v",
b.LastCommit.Hash(),
@@ -88,12 +76,7 @@ func (b *Block) ValidateBasic() error {
)
}
// Validate the hash of the transactions.
// NOTE: b.Data.Txs may be nil, but b.Data.Hash()
// still works fine
if err := ValidateHash(b.DataHash); err != nil {
return fmt.Errorf("wrong Header.DataHash: %v", err)
}
// NOTE: b.Data.Txs may be nil, but b.Data.Hash() still works fine.
if !bytes.Equal(b.DataHash, b.Data.Hash()) {
return fmt.Errorf(
"wrong Header.DataHash. Expected %v, got %v",
@@ -102,32 +85,13 @@ func (b *Block) ValidateBasic() error {
)
}
// Basic validation of hashes related to application data.
// Will validate fully against state in state#ValidateBlock.
if err := ValidateHash(b.ValidatorsHash); err != nil {
return fmt.Errorf("wrong Header.ValidatorsHash: %v", err)
}
if err := ValidateHash(b.NextValidatorsHash); err != nil {
return fmt.Errorf("wrong Header.NextValidatorsHash: %v", err)
}
if err := ValidateHash(b.ConsensusHash); err != nil {
return fmt.Errorf("wrong Header.ConsensusHash: %v", err)
}
// NOTE: AppHash is arbitrary length
if err := ValidateHash(b.LastResultsHash); err != nil {
return fmt.Errorf("wrong Header.LastResultsHash: %v", err)
}
// Validate evidence and its hash.
if err := ValidateHash(b.EvidenceHash); err != nil {
return fmt.Errorf("wrong Header.EvidenceHash: %v", err)
}
// NOTE: b.Evidence.Evidence may be nil, but we're just looping.
for i, ev := range b.Evidence.Evidence {
if err := ev.ValidateBasic(); err != nil {
return fmt.Errorf("invalid evidence (#%d): %v", i, err)
}
}
if !bytes.Equal(b.EvidenceHash, b.Evidence.Hash()) {
return fmt.Errorf("wrong Header.EvidenceHash. Expected %v, got %v",
b.EvidenceHash,
@@ -135,11 +99,6 @@ func (b *Block) ValidateBasic() error {
)
}
if len(b.ProposerAddress) != crypto.AddressSize {
return fmt.Errorf("expected len(Header.ProposerAddress) to be %d, got %d",
crypto.AddressSize, len(b.ProposerAddress))
}
return nil
}
@@ -368,6 +327,63 @@ func (h *Header) Populate(
h.ProposerAddress = proposerAddress
}
// ValidateBasic performs stateless validation on a Header returning an error
// if any validation fails.
//
// NOTE: Timestamp validation is subtle and handled elsewhere.
func (h Header) ValidateBasic() error {
if len(h.ChainID) > MaxChainIDLen {
return fmt.Errorf("chainID is too long; got: %d, max: %d", len(h.ChainID), MaxChainIDLen)
}
if h.Height < 0 {
return errors.New("negative Height")
} else if h.Height == 0 {
return errors.New("zero Height")
}
if err := h.LastBlockID.ValidateBasic(); err != nil {
return fmt.Errorf("wrong LastBlockID: %w", err)
}
if err := ValidateHash(h.LastCommitHash); err != nil {
return fmt.Errorf("wrong LastCommitHash: %v", err)
}
if err := ValidateHash(h.DataHash); err != nil {
return fmt.Errorf("wrong DataHash: %v", err)
}
if err := ValidateHash(h.EvidenceHash); err != nil {
return fmt.Errorf("wrong EvidenceHash: %v", err)
}
if len(h.ProposerAddress) != crypto.AddressSize {
return fmt.Errorf(
"invalid ProposerAddress length; got: %d, expected: %d",
len(h.ProposerAddress), crypto.AddressSize,
)
}
// Basic validation of hashes related to application data.
// Will validate fully against state in state#ValidateBlock.
if err := ValidateHash(h.ValidatorsHash); err != nil {
return fmt.Errorf("wrong ValidatorsHash: %v", err)
}
if err := ValidateHash(h.NextValidatorsHash); err != nil {
return fmt.Errorf("wrong NextValidatorsHash: %v", err)
}
if err := ValidateHash(h.ConsensusHash); err != nil {
return fmt.Errorf("wrong ConsensusHash: %v", err)
}
// NOTE: AppHash is arbitrary length
if err := ValidateHash(h.LastResultsHash); err != nil {
return fmt.Errorf("wrong LastResultsHash: %v", err)
}
return nil
}
// Hash returns the hash of the header.
// It computes a Merkle tree from the header fields
// ordered as they appear in the Header.
@@ -747,7 +763,8 @@ func (commit *Commit) StringIndented(indent string) string {
// It is the basis of the lite client.
type SignedHeader struct {
*Header `json:"header"`
Commit *Commit `json:"commit"`
Commit *Commit `json:"commit"`
}
// ValidateBasic does basic consistency checks and makes sure the header
@@ -756,35 +773,30 @@ type SignedHeader struct {
// sure to use a Verifier to validate the signatures actually provide a
// significantly strong proof for this header's validity.
func (sh SignedHeader) ValidateBasic(chainID string) error {
// Make sure the header is consistent with the commit.
if sh.Header == nil {
return errors.New("signedHeader missing header")
return errors.New("missing header")
}
if sh.Commit == nil {
return errors.New("signedHeader missing commit (precommit votes)")
return errors.New("missing commit")
}
if err := sh.Header.ValidateBasic(); err != nil {
return fmt.Errorf("invalid header: %w", err)
}
if err := sh.Commit.ValidateBasic(); err != nil {
return fmt.Errorf("invalid commit: %w", err)
}
// Check ChainID.
if sh.ChainID != chainID {
return fmt.Errorf("signedHeader belongs to another chain '%s' not '%s'",
sh.ChainID, chainID)
return fmt.Errorf("header belongs to another chain %q, not %q", sh.ChainID, chainID)
}
// Check Height.
// Make sure the header is consistent with the commit.
if sh.Commit.Height != sh.Height {
return fmt.Errorf("signedHeader header and commit height mismatch: %v vs %v",
sh.Height, sh.Commit.Height)
return fmt.Errorf("header and commit height mismatch: %d vs %d", sh.Height, sh.Commit.Height)
}
// Check Hash.
hhash := sh.Hash()
chash := sh.Commit.BlockID.Hash
if !bytes.Equal(hhash, chash) {
return fmt.Errorf("signedHeader commit signs block %X, header is block %X",
chash, hhash)
}
// ValidateBasic on the Commit.
err := sh.Commit.ValidateBasic()
if err != nil {
return errors.Wrap(err, "commit.ValidateBasic failed during SignedHeader.ValidateBasic")
if hhash, chash := sh.Hash(), sh.Commit.BlockID.Hash; !bytes.Equal(hhash, chash) {
return fmt.Errorf("commit signs block %X, header is block %X", chash, hhash)
}
return nil
}