371871d685
* change gas cost for contract creating txs * invalidate signature with s value greater than secp256k1 N / 2 * OOG contract creation if not enough gas to store code * new difficulty adjustment algorithm * new DELEGATECALL op code
544 lines
18 KiB
Go
544 lines
18 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/logger/glog"
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"github.com/ethereum/go-ethereum/rlp"
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)
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var (
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headHeaderKey = []byte("LastHeader")
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headBlockKey = []byte("LastBlock")
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headFastKey = []byte("LastFast")
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blockPrefix = []byte("block-")
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blockNumPrefix = []byte("block-num-")
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headerSuffix = []byte("-header")
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bodySuffix = []byte("-body")
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tdSuffix = []byte("-td")
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txMetaSuffix = []byte{0x01}
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receiptsPrefix = []byte("receipts-")
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blockReceiptsPrefix = []byte("receipts-block-")
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mipmapPre = []byte("mipmap-log-bloom-")
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MIPMapLevels = []uint64{1000000, 500000, 100000, 50000, 1000}
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blockHashPrefix = []byte("block-hash-") // [deprecated by the header/block split, remove eventually]
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)
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// GetCanonicalHash retrieves a hash assigned to a canonical block number.
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func GetCanonicalHash(db ethdb.Database, number uint64) common.Hash {
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data, _ := db.Get(append(blockNumPrefix, big.NewInt(int64(number)).Bytes()...))
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if len(data) == 0 {
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return common.Hash{}
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}
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return common.BytesToHash(data)
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}
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// GetHeadHeaderHash retrieves the hash of the current canonical head block's
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// header. The difference between this and GetHeadBlockHash is that whereas the
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// last block hash is only updated upon a full block import, the last header
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// hash is updated already at header import, allowing head tracking for the
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// light synchronization mechanism.
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func GetHeadHeaderHash(db ethdb.Database) common.Hash {
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data, _ := db.Get(headHeaderKey)
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if len(data) == 0 {
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return common.Hash{}
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}
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return common.BytesToHash(data)
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}
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// GetHeadBlockHash retrieves the hash of the current canonical head block.
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func GetHeadBlockHash(db ethdb.Database) common.Hash {
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data, _ := db.Get(headBlockKey)
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if len(data) == 0 {
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return common.Hash{}
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}
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return common.BytesToHash(data)
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}
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// GetHeadFastBlockHash retrieves the hash of the current canonical head block during
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// fast synchronization. The difference between this and GetHeadBlockHash is that
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// whereas the last block hash is only updated upon a full block import, the last
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// fast hash is updated when importing pre-processed blocks.
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func GetHeadFastBlockHash(db ethdb.Database) common.Hash {
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data, _ := db.Get(headFastKey)
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if len(data) == 0 {
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return common.Hash{}
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}
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return common.BytesToHash(data)
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}
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// GetHeadBlockNum retrieves the block number of the current canonical head block.
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func GetHeadBlockNum(db ethdb.Database) *big.Int {
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data, _ := db.Get(headBlockKey)
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if len(data) == 0 {
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return nil
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}
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header := new(types.Header)
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if err := rlp.Decode(bytes.NewReader(data), header); err != nil {
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glog.V(logger.Error).Infof("invalid block header RLP for head block: %v", err)
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return nil
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}
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return header.Number
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}
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// GetHeaderRLP retrieves a block header in its raw RLP database encoding, or nil
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// if the header's not found.
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func GetHeaderRLP(db ethdb.Database, hash common.Hash) rlp.RawValue {
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data, _ := db.Get(append(append(blockPrefix, hash[:]...), headerSuffix...))
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return data
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}
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// GetHeader retrieves the block header corresponding to the hash, nil if none
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// found.
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func GetHeader(db ethdb.Database, hash common.Hash) *types.Header {
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data := GetHeaderRLP(db, hash)
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if len(data) == 0 {
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return nil
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}
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header := new(types.Header)
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if err := rlp.Decode(bytes.NewReader(data), header); err != nil {
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glog.V(logger.Error).Infof("invalid block header RLP for hash %x: %v", hash, err)
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return nil
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}
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return header
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}
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// GetBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.
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func GetBodyRLP(db ethdb.Database, hash common.Hash) rlp.RawValue {
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data, _ := db.Get(append(append(blockPrefix, hash[:]...), bodySuffix...))
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return data
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}
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// GetBody retrieves the block body (transactons, uncles) corresponding to the
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// hash, nil if none found.
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func GetBody(db ethdb.Database, hash common.Hash) *types.Body {
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data := GetBodyRLP(db, hash)
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if len(data) == 0 {
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return nil
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}
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body := new(types.Body)
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if err := rlp.Decode(bytes.NewReader(data), body); err != nil {
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glog.V(logger.Error).Infof("invalid block body RLP for hash %x: %v", hash, err)
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return nil
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}
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return body
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}
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// GetTd retrieves a block's total difficulty corresponding to the hash, nil if
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// none found.
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func GetTd(db ethdb.Database, hash common.Hash) *big.Int {
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data, _ := db.Get(append(append(blockPrefix, hash.Bytes()...), tdSuffix...))
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if len(data) == 0 {
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return nil
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}
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td := new(big.Int)
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if err := rlp.Decode(bytes.NewReader(data), td); err != nil {
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glog.V(logger.Error).Infof("invalid block total difficulty RLP for hash %x: %v", hash, err)
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return nil
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}
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return td
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}
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// GetBlock retrieves an entire block corresponding to the hash, assembling it
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// back from the stored header and body.
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func GetBlock(db ethdb.Database, hash common.Hash) *types.Block {
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// Retrieve the block header and body contents
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header := GetHeader(db, hash)
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if header == nil {
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return nil
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}
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body := GetBody(db, hash)
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if body == nil {
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return nil
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}
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// Reassemble the block and return
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return types.NewBlockWithHeader(header).WithBody(body.Transactions, body.Uncles)
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}
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// GetBlockReceipts retrieves the receipts generated by the transactions included
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// in a block given by its hash.
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func GetBlockReceipts(db ethdb.Database, hash common.Hash) types.Receipts {
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data, _ := db.Get(append(blockReceiptsPrefix, hash[:]...))
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if len(data) == 0 {
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return nil
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}
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storageReceipts := []*types.ReceiptForStorage{}
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if err := rlp.DecodeBytes(data, &storageReceipts); err != nil {
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glog.V(logger.Error).Infof("invalid receipt array RLP for hash %x: %v", hash, err)
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return nil
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}
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receipts := make(types.Receipts, len(storageReceipts))
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for i, receipt := range storageReceipts {
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receipts[i] = (*types.Receipt)(receipt)
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}
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return receipts
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}
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// GetTransaction retrieves a specific transaction from the database, along with
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// its added positional metadata.
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func GetTransaction(db ethdb.Database, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64) {
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// Retrieve the transaction itself from the database
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data, _ := db.Get(hash.Bytes())
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if len(data) == 0 {
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return nil, common.Hash{}, 0, 0
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}
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var tx types.Transaction
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if err := rlp.DecodeBytes(data, &tx); err != nil {
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return nil, common.Hash{}, 0, 0
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}
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// Retrieve the blockchain positional metadata
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data, _ = db.Get(append(hash.Bytes(), txMetaSuffix...))
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if len(data) == 0 {
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return nil, common.Hash{}, 0, 0
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}
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var meta struct {
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BlockHash common.Hash
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BlockIndex uint64
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Index uint64
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}
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if err := rlp.DecodeBytes(data, &meta); err != nil {
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return nil, common.Hash{}, 0, 0
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}
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return &tx, meta.BlockHash, meta.BlockIndex, meta.Index
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}
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// GetReceipt returns a receipt by hash
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func GetReceipt(db ethdb.Database, txHash common.Hash) *types.Receipt {
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data, _ := db.Get(append(receiptsPrefix, txHash[:]...))
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if len(data) == 0 {
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return nil
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}
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var receipt types.ReceiptForStorage
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err := rlp.DecodeBytes(data, &receipt)
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if err != nil {
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glog.V(logger.Core).Infoln("GetReceipt err:", err)
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}
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return (*types.Receipt)(&receipt)
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}
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// WriteCanonicalHash stores the canonical hash for the given block number.
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func WriteCanonicalHash(db ethdb.Database, hash common.Hash, number uint64) error {
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key := append(blockNumPrefix, big.NewInt(int64(number)).Bytes()...)
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if err := db.Put(key, hash.Bytes()); err != nil {
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glog.Fatalf("failed to store number to hash mapping into database: %v", err)
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return err
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}
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return nil
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}
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// WriteHeadHeaderHash stores the head header's hash.
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func WriteHeadHeaderHash(db ethdb.Database, hash common.Hash) error {
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if err := db.Put(headHeaderKey, hash.Bytes()); err != nil {
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glog.Fatalf("failed to store last header's hash into database: %v", err)
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return err
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}
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return nil
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}
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// WriteHeadBlockHash stores the head block's hash.
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func WriteHeadBlockHash(db ethdb.Database, hash common.Hash) error {
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if err := db.Put(headBlockKey, hash.Bytes()); err != nil {
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glog.Fatalf("failed to store last block's hash into database: %v", err)
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return err
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}
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return nil
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}
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// WriteHeadFastBlockHash stores the fast head block's hash.
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func WriteHeadFastBlockHash(db ethdb.Database, hash common.Hash) error {
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if err := db.Put(headFastKey, hash.Bytes()); err != nil {
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glog.Fatalf("failed to store last fast block's hash into database: %v", err)
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return err
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}
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return nil
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}
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// WriteHeader serializes a block header into the database.
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func WriteHeader(db ethdb.Database, header *types.Header) error {
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data, err := rlp.EncodeToBytes(header)
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if err != nil {
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return err
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}
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key := append(append(blockPrefix, header.Hash().Bytes()...), headerSuffix...)
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if err := db.Put(key, data); err != nil {
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glog.Fatalf("failed to store header into database: %v", err)
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return err
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}
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glog.V(logger.Debug).Infof("stored header #%v [%x…]", header.Number, header.Hash().Bytes()[:4])
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return nil
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}
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// WriteBody serializes the body of a block into the database.
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func WriteBody(db ethdb.Database, hash common.Hash, body *types.Body) error {
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data, err := rlp.EncodeToBytes(body)
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if err != nil {
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return err
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}
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key := append(append(blockPrefix, hash.Bytes()...), bodySuffix...)
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if err := db.Put(key, data); err != nil {
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glog.Fatalf("failed to store block body into database: %v", err)
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return err
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}
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glog.V(logger.Debug).Infof("stored block body [%x…]", hash.Bytes()[:4])
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return nil
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}
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// WriteTd serializes the total difficulty of a block into the database.
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func WriteTd(db ethdb.Database, hash common.Hash, td *big.Int) error {
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data, err := rlp.EncodeToBytes(td)
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if err != nil {
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return err
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}
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key := append(append(blockPrefix, hash.Bytes()...), tdSuffix...)
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if err := db.Put(key, data); err != nil {
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glog.Fatalf("failed to store block total difficulty into database: %v", err)
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return err
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}
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glog.V(logger.Debug).Infof("stored block total difficulty [%x…]: %v", hash.Bytes()[:4], td)
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return nil
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}
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// WriteBlock serializes a block into the database, header and body separately.
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func WriteBlock(db ethdb.Database, block *types.Block) error {
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// Store the body first to retain database consistency
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if err := WriteBody(db, block.Hash(), &types.Body{block.Transactions(), block.Uncles()}); err != nil {
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return err
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}
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// Store the header too, signaling full block ownership
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if err := WriteHeader(db, block.Header()); err != nil {
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return err
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}
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return nil
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}
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// WriteBlockReceipts stores all the transaction receipts belonging to a block
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// as a single receipt slice. This is used during chain reorganisations for
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// rescheduling dropped transactions.
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func WriteBlockReceipts(db ethdb.Database, hash common.Hash, receipts types.Receipts) error {
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// Convert the receipts into their storage form and serialize them
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storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
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for i, receipt := range receipts {
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storageReceipts[i] = (*types.ReceiptForStorage)(receipt)
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}
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bytes, err := rlp.EncodeToBytes(storageReceipts)
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if err != nil {
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return err
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}
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// Store the flattened receipt slice
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if err := db.Put(append(blockReceiptsPrefix, hash.Bytes()...), bytes); err != nil {
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glog.Fatalf("failed to store block receipts into database: %v", err)
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return err
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}
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glog.V(logger.Debug).Infof("stored block receipts [%x…]", hash.Bytes()[:4])
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return nil
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}
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// WriteTransactions stores the transactions associated with a specific block
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// into the given database. Beside writing the transaction, the function also
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// stores a metadata entry along with the transaction, detailing the position
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// of this within the blockchain.
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func WriteTransactions(db ethdb.Database, block *types.Block) error {
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batch := db.NewBatch()
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// Iterate over each transaction and encode it with its metadata
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for i, tx := range block.Transactions() {
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// Encode and queue up the transaction for storage
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data, err := rlp.EncodeToBytes(tx)
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if err != nil {
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return err
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}
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if err := batch.Put(tx.Hash().Bytes(), data); err != nil {
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return err
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}
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// Encode and queue up the transaction metadata for storage
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meta := struct {
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BlockHash common.Hash
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BlockIndex uint64
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Index uint64
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}{
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BlockHash: block.Hash(),
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BlockIndex: block.NumberU64(),
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Index: uint64(i),
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}
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data, err = rlp.EncodeToBytes(meta)
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if err != nil {
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return err
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}
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if err := batch.Put(append(tx.Hash().Bytes(), txMetaSuffix...), data); err != nil {
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return err
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}
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}
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// Write the scheduled data into the database
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if err := batch.Write(); err != nil {
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glog.Fatalf("failed to store transactions into database: %v", err)
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return err
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}
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return nil
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}
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// WriteReceipts stores a batch of transaction receipts into the database.
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func WriteReceipts(db ethdb.Database, receipts types.Receipts) error {
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batch := db.NewBatch()
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// Iterate over all the receipts and queue them for database injection
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for _, receipt := range receipts {
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storageReceipt := (*types.ReceiptForStorage)(receipt)
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data, err := rlp.EncodeToBytes(storageReceipt)
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if err != nil {
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return err
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}
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if err := batch.Put(append(receiptsPrefix, receipt.TxHash.Bytes()...), data); err != nil {
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return err
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}
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}
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// Write the scheduled data into the database
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if err := batch.Write(); err != nil {
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glog.Fatalf("failed to store receipts into database: %v", err)
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return err
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}
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return nil
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}
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// DeleteCanonicalHash removes the number to hash canonical mapping.
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func DeleteCanonicalHash(db ethdb.Database, number uint64) {
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db.Delete(append(blockNumPrefix, big.NewInt(int64(number)).Bytes()...))
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}
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// DeleteHeader removes all block header data associated with a hash.
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func DeleteHeader(db ethdb.Database, hash common.Hash) {
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db.Delete(append(append(blockPrefix, hash.Bytes()...), headerSuffix...))
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}
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// DeleteBody removes all block body data associated with a hash.
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func DeleteBody(db ethdb.Database, hash common.Hash) {
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db.Delete(append(append(blockPrefix, hash.Bytes()...), bodySuffix...))
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}
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// DeleteTd removes all block total difficulty data associated with a hash.
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func DeleteTd(db ethdb.Database, hash common.Hash) {
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db.Delete(append(append(blockPrefix, hash.Bytes()...), tdSuffix...))
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}
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// DeleteBlock removes all block data associated with a hash.
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func DeleteBlock(db ethdb.Database, hash common.Hash) {
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DeleteBlockReceipts(db, hash)
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DeleteHeader(db, hash)
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DeleteBody(db, hash)
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DeleteTd(db, hash)
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}
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// DeleteBlockReceipts removes all receipt data associated with a block hash.
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func DeleteBlockReceipts(db ethdb.Database, hash common.Hash) {
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db.Delete(append(blockReceiptsPrefix, hash.Bytes()...))
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}
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// DeleteTransaction removes all transaction data associated with a hash.
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func DeleteTransaction(db ethdb.Database, hash common.Hash) {
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db.Delete(hash.Bytes())
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db.Delete(append(hash.Bytes(), txMetaSuffix...))
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}
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// DeleteReceipt removes all receipt data associated with a transaction hash.
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func DeleteReceipt(db ethdb.Database, hash common.Hash) {
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db.Delete(append(receiptsPrefix, hash.Bytes()...))
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}
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// [deprecated by the header/block split, remove eventually]
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// GetBlockByHashOld returns the old combined block corresponding to the hash
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// or nil if not found. This method is only used by the upgrade mechanism to
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// access the old combined block representation. It will be dropped after the
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// network transitions to eth/63.
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func GetBlockByHashOld(db ethdb.Database, hash common.Hash) *types.Block {
|
|
data, _ := db.Get(append(blockHashPrefix, hash[:]...))
|
|
if len(data) == 0 {
|
|
return nil
|
|
}
|
|
var block types.StorageBlock
|
|
if err := rlp.Decode(bytes.NewReader(data), &block); err != nil {
|
|
glog.V(logger.Error).Infof("invalid block RLP for hash %x: %v", hash, err)
|
|
return nil
|
|
}
|
|
return (*types.Block)(&block)
|
|
}
|
|
|
|
// returns a formatted MIP mapped key by adding prefix, canonical number and level
|
|
//
|
|
// ex. fn(98, 1000) = (prefix || 1000 || 0)
|
|
func mipmapKey(num, level uint64) []byte {
|
|
lkey := make([]byte, 8)
|
|
binary.BigEndian.PutUint64(lkey, level)
|
|
key := new(big.Int).SetUint64(num / level * level)
|
|
|
|
return append(mipmapPre, append(lkey, key.Bytes()...)...)
|
|
}
|
|
|
|
// WriteMapmapBloom writes each address included in the receipts' logs to the
|
|
// MIP bloom bin.
|
|
func WriteMipmapBloom(db ethdb.Database, number uint64, receipts types.Receipts) error {
|
|
batch := db.NewBatch()
|
|
for _, level := range MIPMapLevels {
|
|
key := mipmapKey(number, level)
|
|
bloomDat, _ := db.Get(key)
|
|
bloom := types.BytesToBloom(bloomDat)
|
|
for _, receipt := range receipts {
|
|
for _, log := range receipt.Logs {
|
|
bloom.Add(log.Address.Big())
|
|
}
|
|
}
|
|
batch.Put(key, bloom.Bytes())
|
|
}
|
|
if err := batch.Write(); err != nil {
|
|
return fmt.Errorf("mipmap write fail for: %d: %v", number, err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// GetMipmapBloom returns a bloom filter using the number and level as input
|
|
// parameters. For available levels see MIPMapLevels.
|
|
func GetMipmapBloom(db ethdb.Database, number, level uint64) types.Bloom {
|
|
bloomDat, _ := db.Get(mipmapKey(number, level))
|
|
return types.BytesToBloom(bloomDat)
|
|
}
|
|
|
|
// GetBlockChainVersion reads the version number from db.
|
|
func GetBlockChainVersion(db ethdb.Database) int {
|
|
var vsn uint
|
|
enc, _ := db.Get([]byte("BlockchainVersion"))
|
|
rlp.DecodeBytes(enc, &vsn)
|
|
return int(vsn)
|
|
}
|
|
|
|
// WriteBlockChainVersion writes vsn as the version number to db.
|
|
func WriteBlockChainVersion(db ethdb.Database, vsn int) {
|
|
enc, _ := rlp.EncodeToBytes(uint(vsn))
|
|
db.Put([]byte("BlockchainVersion"), enc)
|
|
}
|