From 2018ab558d9fe041b533d09503e6eeeee8ad637e Mon Sep 17 00:00:00 2001
From: Miguel Montes <miguel.montes@unc.edu.ar>
Date: Sat, 1 Dec 2018 22:37:02 -0300
Subject: [PATCH] =?UTF-8?q?Cambio=20del=20c=C3=B3digo=20de=20identificaci?=
=?UTF-8?q?=C3=B3n=20del=20sellador=20de=20un=20bloque=20Uso=20de=20campos?=
=?UTF-8?q?=20embebidos=20Creaci=C3=B3n=20de=20la=20interface=20BlockHeade?=
=?UTF-8?q?r,=20implementada=20por=20Header=20y=20por=20Block?=
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Content-Transfer-Encoding: 8bit
---
bfa_client/src/bfa/node.go | 113 +++++++++++++++++++++++++-------
bfa_client/src/clique/clique.go | 57 ++++++++++------
2 files changed, 128 insertions(+), 42 deletions(-)
diff --git a/bfa_client/src/bfa/node.go b/bfa_client/src/bfa/node.go
index b0115d8..81c2580 100644
--- a/bfa_client/src/bfa/node.go
+++ b/bfa_client/src/bfa/node.go
@@ -84,28 +84,96 @@ type RPCTransaction struct {
S *BigInt `json:"s"`
}
+type Header struct {
+ ParentHash common.Hash `json:"parentHash"`
+ UncleHash common.Hash `json:"sha3Uncles"`
+ Coinbase common.Address `json:"miner"`
+ Root common.Hash `json:"stateRoot"`
+ TxHash common.Hash `json:"transactionsRoot"`
+ ReceiptHash common.Hash `json:"receiptsRoot"`
+ Bloom types.Bloom `json:"logsBloom"`
+ Difficulty *BigInt `json:"difficulty"`
+ Number *BigInt `json:"number"`
+ GasLimit Uint64 `json:"gasLimit"`
+ GasUsed Uint64 `json:"gasUsed"`
+ Time *BigInt `json:"timestamp"`
+ Extra Bytes `json:"extraData"`
+ MixDigest common.Hash `json:"mixHash"`
+ Nonce types.BlockNonce `json:"nonce"`
+}
+
+func (header *Header) ParentHsh() common.Hash {
+ return header.ParentHash
+}
+
+func (header *Header) UncleHsh() common.Hash {
+ return header.UncleHash
+}
+
+func (header *Header) RootHsh() common.Hash {
+ return header.Root
+}
+
+func (header *Header) TxHsh() common.Hash {
+ return header.TxHash
+}
+
+func (header *Header) ReceiptHsh() common.Hash {
+ return header.ReceiptHash
+}
+
+func (header *Header) MixDigestHsh() common.Hash {
+ return header.MixDigest
+}
+
+func (header *Header) LogsBloom() types.Bloom {
+ return header.Bloom
+}
+
+func (header *Header) BlockNonce() types.BlockNonce {
+ return header.Nonce
+}
+
+func (header *Header) BlockDifficulty() *big.Int {
+ return (*big.Int)(header.Difficulty)
+}
+
+func (header *Header) BlockNumber() *big.Int {
+ return (*big.Int)(header.Number)
+}
+
+func (header *Header) Timestamp() *big.Int {
+ return (*big.Int)(header.Time)
+}
+
+func (header *Header) MaxGas() uint64 {
+ return uint64(header.GasLimit)
+}
+
+func (header *Header) Gas() uint64 {
+ return uint64(header.GasUsed)
+}
+
+func (header *Header) ExtraWithoutSignature() []byte {
+ return header.Extra[:len(header.Extra)-65]
+}
+
+func (header *Header) Signature() []byte {
+ return header.Extra[len(header.Extra)-65:]
+}
+
+func (header *Header) Miner() common.Address {
+ return header.Coinbase
+}
+
type Block struct {
- ParentHash common.Hash `json:"parentHash"`
- UncleHash common.Hash `json:"sha3Uncles"`
- Coinbase common.Address `json:"miner"`
- Root common.Hash `json:"stateRoot"`
- TxHash common.Hash `json:"transactionsRoot"`
- ReceiptHash common.Hash `json:"receiptsRoot"`
- Bloom types.Bloom `json:"logsBloom"`
- Difficulty *BigInt `json:"difficulty"`
- Number *BigInt `json:"number"`
- GasLimit Uint64 `json:"gasLimit"`
- GasUsed Uint64 `json:"gasUsed"`
- Time *BigInt `json:"timestamp"`
- Extra Bytes `json:"extraData"`
- MixDigest common.Hash `json:"mixHash"`
- Nonce types.BlockNonce `json:"nonce"`
+ Header
Transactions []RPCTransaction `json:"transactions"`
TotalDifficulty Uint64 `json:"totalDifficulty"`
Signer common.Address `json:"signer"`
}
-func (block *Block) Header() (header types.Header) {
+func (block *Block) GetHeader() (header types.Header) {
header.ParentHash = block.ParentHash
header.UncleHash = block.UncleHash
header.Coinbase = block.Coinbase
@@ -125,8 +193,7 @@ func (block *Block) Header() (header types.Header) {
}
func (block *Block) setSigner() {
- header := block.Header()
- block.Signer = GetSigner(&header)
+ block.Signer = GetSigner(block)
}
type Snapshot struct {
@@ -251,7 +318,7 @@ func (node *Node) BlockNumberInRange(number int64) (blockNumber int64) {
return
}
-func (node *Node) HeaderByNumber(blockNumber int64) (header types.Header) {
+func (node *Node) HeaderByNumber(blockNumber int64) (header Header) {
Require(blockNumber == -1 || blockNumber == node.BlockNumberInRange(blockNumber), "block number out of range")
node.Call(&header, "eth_getBlockByNumber", hexBlockNumber(blockNumber), true)
return
@@ -377,14 +444,14 @@ func (node *Node) SealersStatus(blockNumber int64) (status map[string]*SealerSta
}
notSeen := int64(len(status))
block := node.HeaderByNumber(blockNumber)
- blockNumber = block.Number.Int64()
+ blockNumber = block.BlockNumber().Int64()
until := Max(1, blockNumber-5*notSeen)
for notSeen > 0 {
signer := BytesToHex(GetSigner(&block).Bytes())
if status[signer].LastBlock == 0 {
- status[signer].LastBlock = block.Number.Int64()
- status[signer].Time = block.Time.Uint64()
- status[signer].Difficulty = block.Difficulty.Uint64()
+ status[signer].LastBlock = block.BlockNumber().Int64()
+ status[signer].Time = block.Timestamp().Uint64()
+ status[signer].Difficulty = block.BlockDifficulty().Uint64()
notSeen--
}
if blockNumber == until {
diff --git a/bfa_client/src/clique/clique.go b/bfa_client/src/clique/clique.go
index 2e91d9b..697482b 100644
--- a/bfa_client/src/clique/clique.go
+++ b/bfa_client/src/clique/clique.go
@@ -6,35 +6,54 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/crypto/sha3"
"github.com/ethereum/go-ethereum/rlp"
+ "math/big"
)
-func sigHash(header *types.Header) (hash common.Hash) {
+type BlockHeader interface {
+ ParentHsh() common.Hash
+ UncleHsh() common.Hash
+ Miner() common.Address
+ RootHsh() common.Hash
+ TxHsh() common.Hash
+ ReceiptHsh() common.Hash
+ LogsBloom() types.Bloom
+ BlockDifficulty() *big.Int
+ BlockNumber() *big.Int
+ MaxGas() uint64
+ Gas() uint64
+ Timestamp() *big.Int
+ ExtraWithoutSignature() []byte
+ MixDigestHsh() common.Hash
+ BlockNonce() types.BlockNonce
+ Signature() []byte
+}
+
+func sigHash(header BlockHeader) (hash common.Hash) {
hasher := sha3.NewKeccak256()
_ = rlp.Encode(hasher, []interface{}{
- header.ParentHash,
- header.UncleHash,
- header.Coinbase,
- header.Root,
- header.TxHash,
- header.ReceiptHash,
- header.Bloom,
- header.Difficulty,
- header.Number,
- header.GasLimit,
- header.GasUsed,
- header.Time,
- header.Extra[:len(header.Extra)-65], // Yes, this will panic if extra is too short
- header.MixDigest,
- header.Nonce,
+ header.ParentHsh(),
+ header.UncleHsh(),
+ header.Miner(),
+ header.RootHsh(),
+ header.TxHsh(),
+ header.ReceiptHsh(),
+ header.LogsBloom(),
+ header.BlockDifficulty(),
+ header.BlockNumber(),
+ header.MaxGas(),
+ header.Gas(),
+ header.Timestamp(),
+ header.ExtraWithoutSignature(),
+ header.MixDigestHsh(),
+ header.BlockNonce(),
})
hasher.Sum(hash[:0])
return hash
}
-func GetSigner(header *types.Header) (address common.Address) {
- signature := header.Extra[len(header.Extra)-65:]
+func GetSigner(header BlockHeader) (address common.Address) {
hash := sigHash(header).Bytes()
- pubkey, err := crypto.Ecrecover(hash, signature)
+ pubkey, err := crypto.Ecrecover(hash, header.Signature())
if err != nil {
panic(err)
}
--
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