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// Copyright (C) 2019-2021 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package participation
import (
"context"
"encoding/hex"
"os"
"path/filepath"
"runtime"
"testing"
"time"
"github.com/stretchr/testify/require"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/account"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/data/bookkeeping"
"github.com/algorand/go-algorand/data/transactions"
"github.com/algorand/go-algorand/protocol"
"github.com/algorand/go-algorand/test/framework/fixtures"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/algorand/go-algorand/util/db"
)
func TestOverlappingParticipationKeys(t *testing.T) {
partitiontest.PartitionTest(t)
defer fixtures.ShutdownSynchronizedTest(t)
t.Parallel()
a := require.New(fixtures.SynchronizedTest(t))
consensus := make(config.ConsensusProtocols)
shortPartKeysProtocol := config.Consensus[protocol.ConsensusCurrentVersion]
shortPartKeysProtocol.ApprovedUpgrades = map[protocol.ConsensusVersion]uint64{}
// keys round = current - 2 * (2 * 1) (see selector.go)
// new keys must exist at least 4 rounds prior use
shortPartKeysProtocol.SeedLookback = 2
shortPartKeysProtocol.SeedRefreshInterval = 1
if runtime.GOARCH == "amd64" {
// amd64 platforms are generally quite capable, so accelerate the round times to make the test run faster.
shortPartKeysProtocol.AgreementFilterTimeoutPeriod0 = 1 * time.Second
shortPartKeysProtocol.AgreementFilterTimeout = 1 * time.Second
}
consensus[protocol.ConsensusVersion("shortpartkeysprotocol")] = shortPartKeysProtocol
var fixture fixtures.RestClientFixture
fixture.SetConsensus(consensus)
// ShortParticipationKeys template has LastPartKeyRound=8
// to allow the 3rd key to be registered and appear after 4+4 round for its first use
fixture.SetupNoStart(t, filepath.Join("nettemplates", "ShortParticipationKeys.json"))
defer fixture.Shutdown()
accountsNum := len(fixture.NodeDataDirs())
for _, dataDir := range fixture.NodeDataDirs() {
cfg, err := config.LoadConfigFromDisk(dataDir)
a.NoError(err)
cfg.ParticipationKeysRefreshInterval = 500 * time.Millisecond
err = cfg.SaveToDisk(dataDir)
a.NoError(err)
}
genesis, err := bookkeeping.LoadGenesisFromFile(filepath.Join(fixture.PrimaryDataDir(), "genesis.json"))
a.NoError(err)
genesisHash := crypto.HashObj(genesis)
rootKeys := make(map[int]*account.Root)
regTransactions := make(map[int]transactions.SignedTxn)
lastRound := uint64(39) // check 3 rounds of keys rotations
// prepare the participation keys ahead of time.
for round := uint64(1); round < lastRound; round++ {
if (round-1)%10 >= uint64(accountsNum) {
continue
}
acctIdx := (round - 1) % 10
txStartRound := round
txEndRound := txStartRound + 10 + 4
regStartRound := round
regEndRound := regStartRound + 11 + 4
err = prepareParticipationKey(a, &fixture, acctIdx, txStartRound, txEndRound, regStartRound, regEndRound, genesisHash, rootKeys, regTransactions)
a.NoError(err)
}
fixture.Start()
currentRound := uint64(0)
fixture.AlgodClient = fixture.GetAlgodClientForController(fixture.NC)
for {
err := fixture.WaitForRoundWithTimeout(currentRound + 1)
a.NoError(err)
currentRound++
if (currentRound-1)%10 < uint64(accountsNum) {
acctIdx := (currentRound - 1) % 10
startRound := currentRound + 2 // +2 and -2 below to balance, start/end must match in part key file name
endRound := startRound + 10 + 4 - 2
regStartRound := currentRound
regEndRound := regStartRound + 11 + 4
pk, err := addParticipationKey(a, &fixture, acctIdx, startRound, endRound, regTransactions)
a.NoError(err)
t.Logf("[.] Round %d, Added reg key for node %d range [%d..%d] %s\n", currentRound, acctIdx, regStartRound, regEndRound, hex.EncodeToString(pk[:8]))
} else {
t.Logf("[.] Round %d\n", currentRound)
}
if currentRound == lastRound {
break
}
}
}
func addParticipationKey(a *require.Assertions, fixture *fixtures.RestClientFixture, acctNum uint64, startRound, endRound uint64, regTransactions map[int]transactions.SignedTxn) (crypto.OneTimeSignatureVerifier, error) {
dataDir := fixture.NodeDataDirs()[acctNum]
nc := fixture.GetNodeControllerForDataDir(dataDir)
genesisDir, err := nc.GetGenesisDir()
partKeyName := filepath.Join(dataDir, config.PartKeyFilename("Wallet", startRound, endRound))
partKeyNameTarget := filepath.Join(genesisDir, config.PartKeyFilename("Wallet", startRound, endRound))
// make the rename in the background to ensure it won't take too long. We have ~4 rounds to complete this.
go os.Rename(partKeyName, partKeyNameTarget)
signedTxn := regTransactions[int(startRound-2)]
a.NotEmpty(signedTxn.Sig)
_, err = fixture.GetAlgodClientForController(nc).SendRawTransaction(signedTxn)
a.NoError(err)
return signedTxn.Txn.KeyregTxnFields.VotePK, err
}
func prepareParticipationKey(a *require.Assertions, fixture *fixtures.RestClientFixture, acctNum uint64, txStartRound, txEndRound, regStartRound, regEndRound uint64, genesisHash crypto.Digest, rootKeys map[int]*account.Root, regTransactions map[int]transactions.SignedTxn) error {
dataDir := fixture.NodeDataDirs()[acctNum]
nc := fixture.GetNodeControllerForDataDir(dataDir)
genesisDir, err := nc.GetGenesisDir()
if err != nil {
a.NoError(err)
return err
}
var rootAccount account.Root
if _, have := rootKeys[int(acctNum)]; !have {
var rootKeyFilename string
err = filepath.Walk(genesisDir, func(path string, f os.FileInfo, errIn error) error {
if errIn != nil {
return errIn
}
if f.IsDir() {
return nil
}
if config.IsRootKeyFilename(f.Name()) {
rootKeyFilename = path
}
return nil
})
if err != nil {
a.NoError(err)
return err
}
rootKeyHandle, err := db.MakeAccessor(rootKeyFilename, false, false)
if err != nil {
a.NoError(err)
return err
}
// generate a new participation key.
rootAccount, err = account.RestoreRoot(rootKeyHandle)
if err != nil {
a.NoError(err)
return err
}
rootKeys[int(acctNum)] = &rootAccount
rootKeyHandle.Close()
}
rootAccount = *rootKeys[int(acctNum)]
partKeyName := filepath.Join(dataDir, config.PartKeyFilename("Wallet", txStartRound+2, txEndRound))
partkeyHandle, err := db.MakeAccessor(partKeyName, false, false)
if err != nil {
a.NoError(err)
return err
}
persistedParticipation, err := account.FillDBWithParticipationKeys(partkeyHandle, rootAccount.Address(), basics.Round(regStartRound), basics.Round(regEndRound), fixture.LibGoalFixture.Genesis().PartKeyDilution)
if err != nil {
a.NoError(err)
return err
}
partkeyHandle.Vacuum(context.Background())
persistedParticipation.Close()
unsignedTxn := persistedParticipation.GenerateRegistrationTransaction(basics.MicroAlgos{Raw: 1000}, basics.Round(txStartRound), basics.Round(txEndRound), [32]byte{})
copy(unsignedTxn.GenesisHash[:], genesisHash[:])
if err != nil {
a.NoError(err)
return err
}
regTransactions[int(txStartRound)] = unsignedTxn.Sign(rootAccount.Secrets())
return err
}
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