neo-go/pkg/consensus/block.go
Roman Khimov 4d2ecab16f consensus: fix nonce handling
It was broken somewhere between 2f490a3403 and
85ce207f40 leading to panic on watch only node:

2021-07-21T16:21:39.201+0200    INFO    received Commit {"validator": 3}
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0xbcc59e]

goroutine 486 [running]:
github.com/nspcc-dev/neo-go/pkg/consensus.(*service).newBlockFromContext(0xc0001629a0, 0xc000308000, 0xc0010fa000, 0x2cb417800)
        github.com/nspcc-dev/neo-go/pkg/consensus/consensus.go:664 +0xbe
github.com/nspcc-dev/dbft.(*Context).MakeHeader(...)
        github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/context.go:270
github.com/nspcc-dev/dbft.(*DBFT).onCommit(0xc000308000, 0x138c998, 0xc000115110)
        github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/dbft.go:487 +0x575
github.com/nspcc-dev/dbft.(*DBFT).OnReceive(0xc000308000, 0x138c998, 0xc000115110)
        github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/dbft.go:251 +0xef5
github.com/nspcc-dev/neo-go/pkg/consensus.(*service).eventLoop(0xc0001629a0)
        github.com/nspcc-dev/neo-go/pkg/consensus/consensus.go:312 +0x7d6
created by github.com/nspcc-dev/neo-go/pkg/consensus.(*service).Start
        github.com/nspcc-dev/neo-go/pkg/consensus/consensus.go:262 +0xdc

In fact, nonce is correctly provided by dbft library (since Legacy), we just
need to use it here.
2021-07-21 19:06:19 +03:00

82 lines
2.4 KiB
Go

package consensus
import (
"errors"
"github.com/nspcc-dev/dbft/block"
"github.com/nspcc-dev/dbft/crypto"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
coreb "github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/util"
)
// neoBlock is a wrapper of core.Block which implements
// methods necessary for dBFT library.
type neoBlock struct {
coreb.Block
network netmode.Magic
signature []byte
}
var _ block.Block = (*neoBlock)(nil)
// Sign implements block.Block interface.
func (n *neoBlock) Sign(key crypto.PrivateKey) error {
k := key.(*privateKey)
sig := k.PrivateKey.SignHashable(uint32(n.network), &n.Block)
n.signature = sig
return nil
}
// Verify implements block.Block interface.
func (n *neoBlock) Verify(key crypto.PublicKey, sign []byte) error {
k := key.(*publicKey)
if k.PublicKey.VerifyHashable(sign, uint32(n.network), &n.Block) {
return nil
}
return errors.New("verification failed")
}
// Transactions implements block.Block interface.
func (n *neoBlock) Transactions() []block.Transaction {
txes := make([]block.Transaction, len(n.Block.Transactions))
for i, tx := range n.Block.Transactions {
txes[i] = tx
}
return txes
}
// SetTransactions implements block.Block interface.
func (n *neoBlock) SetTransactions(txes []block.Transaction) {
n.Block.Transactions = make([]*transaction.Transaction, len(txes))
for i, tx := range txes {
n.Block.Transactions[i] = tx.(*transaction.Transaction)
}
}
// Version implements block.Block interface.
func (n *neoBlock) Version() uint32 { return n.Block.Version }
// PrevHash implements block.Block interface.
func (n *neoBlock) PrevHash() util.Uint256 { return n.Block.PrevHash }
// MerkleRoot implements block.Block interface.
func (n *neoBlock) MerkleRoot() util.Uint256 { return n.Block.MerkleRoot }
// Timestamp implements block.Block interface.
func (n *neoBlock) Timestamp() uint64 { return n.Block.Timestamp * nsInMs }
// Index implements block.Block interface.
func (n *neoBlock) Index() uint32 { return n.Block.Index }
// ConsensusData implements block.Block interface.
func (n *neoBlock) ConsensusData() uint64 { return n.Block.Nonce }
// NextConsensus implements block.Block interface.
func (n *neoBlock) NextConsensus() util.Uint160 { return n.Block.NextConsensus }
// Signature implements block.Block interface.
func (n *neoBlock) Signature() []byte { return n.signature }