eb21c652c0
Removes the yolov2 definition, adds yolov3, including EIP-2565. This PR also disables some of the erroneously generated blockchain and statetests, and adds the new genesis hash + alloc for yolov3. This PR disables the CLI switches for yolo, since it's not complete until we merge support for 2930.
102 lines
3.2 KiB
Go
102 lines
3.2 KiB
Go
// Copyright 2020 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 bls
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import (
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"bytes"
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"fmt"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/vm"
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)
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const (
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blsG1Add = byte(10)
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blsG1Mul = byte(11)
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blsG1MultiExp = byte(12)
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blsG2Add = byte(13)
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blsG2Mul = byte(14)
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blsG2MultiExp = byte(15)
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blsPairing = byte(16)
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blsMapG1 = byte(17)
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blsMapG2 = byte(18)
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)
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func FuzzG1Add(data []byte) int { return fuzz(blsG1Add, data) }
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func FuzzG1Mul(data []byte) int { return fuzz(blsG1Mul, data) }
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func FuzzG1MultiExp(data []byte) int { return fuzz(blsG1MultiExp, data) }
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func FuzzG2Add(data []byte) int { return fuzz(blsG2Add, data) }
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func FuzzG2Mul(data []byte) int { return fuzz(blsG2Mul, data) }
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func FuzzG2MultiExp(data []byte) int { return fuzz(blsG2MultiExp, data) }
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func FuzzPairing(data []byte) int { return fuzz(blsPairing, data) }
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func FuzzMapG1(data []byte) int { return fuzz(blsMapG1, data) }
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func FuzzMapG2(data []byte) int { return fuzz(blsMapG2, data) }
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func checkInput(id byte, inputLen int) bool {
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switch id {
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case blsG1Add:
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return inputLen == 256
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case blsG1Mul:
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return inputLen == 160
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case blsG1MultiExp:
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return inputLen%160 == 0
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case blsG2Add:
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return inputLen == 512
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case blsG2Mul:
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return inputLen == 288
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case blsG2MultiExp:
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return inputLen%288 == 0
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case blsPairing:
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return inputLen%384 == 0
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case blsMapG1:
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return inputLen == 64
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case blsMapG2:
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return inputLen == 128
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}
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panic("programmer error")
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}
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// The fuzzer functions must return
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// 1 if the fuzzer should increase priority of the
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// given input during subsequent fuzzing (for example, the input is lexically
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// correct and was parsed successfully);
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// -1 if the input must not be added to corpus even if gives new coverage; and
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// 0 otherwise
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// other values are reserved for future use.
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func fuzz(id byte, data []byte) int {
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// Even on bad input, it should not crash, so we still test the gas calc
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precompile := vm.PrecompiledContractsBLS[common.BytesToAddress([]byte{id})]
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gas := precompile.RequiredGas(data)
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if !checkInput(id, len(data)) {
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return 0
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}
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// If the gas cost is too large (25M), bail out
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if gas > 25*1000*1000 {
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return 0
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}
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cpy := make([]byte, len(data))
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copy(cpy, data)
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_, err := precompile.Run(cpy)
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if !bytes.Equal(cpy, data) {
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panic(fmt.Sprintf("input data modified, precompile %d: %x %x", id, data, cpy))
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}
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if err != nil {
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return 0
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}
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return 1
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}
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