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| author | Péter Szilágyi <peterke@gmail.com> | 2016-10-29 01:05:01 +0800 |
|---|---|---|
| committer | Felix Lange <fjl@twurst.com> | 2016-10-29 01:05:01 +0800 |
| commit | 289b30715d097edafd5562f66cb3567a70b2d330 (patch) | |
| tree | 7eaaa6da97c84727469303b986e364606ece57ce /vendor/github.com/ethereum/ethash | |
| parent | 77703045765343c489ded2f43e3ed0f332c5f148 (diff) | |
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Godeps, vendor: convert dependency management to trash (#3198)
This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.
You can update dependencies via trash --update.
All dependencies have been updated to their latest version.
Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.
The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.
golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.
Diffstat (limited to 'vendor/github.com/ethereum/ethash')
31 files changed, 3511 insertions, 0 deletions
diff --git a/vendor/github.com/ethereum/ethash/.gitignore b/vendor/github.com/ethereum/ethash/.gitignore new file mode 100644 index 000000000..da074e6b3 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/.gitignore @@ -0,0 +1,12 @@ +.idea/ +.DS_Store +*/**/*un~ +.vagrant/ +*.pyc +build/ +pyethash.egg-info/ +*.so +*~ +*.swp +MANIFEST +dist/ diff --git a/vendor/github.com/ethereum/ethash/.travis.yml b/vendor/github.com/ethereum/ethash/.travis.yml new file mode 100644 index 000000000..b83b02bf3 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/.travis.yml @@ -0,0 +1,23 @@ +language: go +go: + - 1.4.2 + +before_install: + # for g++4.8 and C++11 + - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test + + # Set up go-ethereum + - sudo apt-get update -y -qq + - sudo apt-get install -yqq libgmp3-dev + - git clone --depth=10 https://github.com/ethereum/go-ethereum ${GOPATH}/src/github.com/ethereum/go-ethereum + # use canned dependencies from the go-ethereum repository + - export GOPATH=$GOPATH:$GOPATH/src/github.com/ethereum/go-ethereum/Godeps/_workspace/ + - echo $GOPATH + +install: + # need to explicitly request version 1.48 since by default we get 1.46 which does not work with C++11 + - sudo apt-get install -qq --yes --force-yes g++-4.8 + - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50 + - sudo apt-get install -qq wget cmake bash libboost-test1.48-dev libboost-system1.48-dev libboost-filesystem1.48-dev nodejs python-pip python-dev valgrind + - sudo pip install virtualenv -q +script: "./test/test.sh" diff --git a/vendor/github.com/ethereum/ethash/CMakeLists.txt b/vendor/github.com/ethereum/ethash/CMakeLists.txt new file mode 100644 index 000000000..807c43e96 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/CMakeLists.txt @@ -0,0 +1,14 @@ +cmake_minimum_required(VERSION 2.8.7) +project(ethash) + +set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/") +set(ETHHASH_LIBS ethash) + +if (WIN32 AND WANT_CRYPTOPP) + add_subdirectory(cryptopp) +endif() + +add_subdirectory(src/libethash) + +add_subdirectory(src/benchmark EXCLUDE_FROM_ALL) +add_subdirectory(test/c) diff --git a/vendor/github.com/ethereum/ethash/MANIFEST.in b/vendor/github.com/ethereum/ethash/MANIFEST.in new file mode 100644 index 000000000..74e73c8be --- /dev/null +++ b/vendor/github.com/ethereum/ethash/MANIFEST.in @@ -0,0 +1,17 @@ +include setup.py + +# C sources +include src/libethash/internal.c +include src/libethash/sha3.c +include src/libethash/util.c +include src/python/core.c + +# Headers +include src/libethash/compiler.h +include src/libethash/data_sizes.h +include src/libethash/endian.h +include src/libethash/ethash.h +include src/libethash/fnv.h +include src/libethash/internal.h +include src/libethash/sha3.h +include src/libethash/util.h diff --git a/vendor/github.com/ethereum/ethash/Makefile b/vendor/github.com/ethereum/ethash/Makefile new file mode 100644 index 000000000..741d3b56d --- /dev/null +++ b/vendor/github.com/ethereum/ethash/Makefile @@ -0,0 +1,6 @@ +.PHONY: clean test +test: + ./test/test.sh + +clean: + rm -rf *.so pyethash.egg-info/ build/ test/python/python-virtual-env/ test/c/build/ pyethash.so test/python/*.pyc dist/ MANIFEST diff --git a/vendor/github.com/ethereum/ethash/README.md b/vendor/github.com/ethereum/ethash/README.md new file mode 100644 index 000000000..2b2c3b544 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/README.md @@ -0,0 +1,22 @@ +[](https://travis-ci.org/ethereum/ethash) +[](https://ci.appveyor.com/project/debris/ethash-nr37r/branch/master) + +# Ethash + +For details on this project, please see the Ethereum wiki: +https://github.com/ethereum/wiki/wiki/Ethash + +### Coding Style for C++ code: + +Follow the same exact style as in [cpp-ethereum](https://github.com/ethereum/cpp-ethereum/blob/develop/CodingStandards.txt) + +### Coding Style for C code: + +The main thing above all is code consistency. + +- Tabs for indentation. A tab is 4 spaces +- Try to stick to the [K&R](http://en.wikipedia.org/wiki/Indent_style#K.26R_style), + especially for the C code. +- Keep the line lengths reasonable. No hard limit on 80 characters but don't go further + than 110. Some people work with multiple buffers next to each other. + Make them like you :) diff --git a/vendor/github.com/ethereum/ethash/Vagrantfile b/vendor/github.com/ethereum/ethash/Vagrantfile new file mode 100644 index 000000000..03891653f --- /dev/null +++ b/vendor/github.com/ethereum/ethash/Vagrantfile @@ -0,0 +1,7 @@ +# -*- mode: ruby -*- +# vi: set ft=ruby : + +Vagrant.configure(2) do |config| + config.vm.box = "Ubuntu 12.04" + config.vm.box_url = "https://cloud-images.ubuntu.com/vagrant/precise/current/precise-server-cloudimg-amd64-vagrant-disk1.box" +end diff --git a/vendor/github.com/ethereum/ethash/appveyor.yml b/vendor/github.com/ethereum/ethash/appveyor.yml new file mode 100644 index 000000000..ac36a0626 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/appveyor.yml @@ -0,0 +1,43 @@ +version: 1.0.0.{build} + +environment: + BOOST_ROOT: "c:/projects/ethash/deps/boost" + +branches: + only: + - master + - develop + +os: Windows Server 2012 R2 + +clone_folder: c:\projects\ethash + +#platform: Any CPU +#configuration: Debug + +install: + # by default, all script lines are interpreted as batch + +# scripts to run before build +before_build: + - echo "Downloading boost..." + - mkdir c:\projects\ethash\deps + - cd c:\projects\ethash\deps + - curl -O https://build.ethdev.com/builds/windows-precompiled/boost.tar.gz + - echo "Unzipping boost..." + - 7z x boost.tar.gz > nul + - 7z x boost.tar > nul + - ls + - echo "Running cmake..." + - cd c:\projects\ethash + - cmake . + +build: + project: ALL_BUILD.vcxproj # path to Visual Studio solution or project + +after_build: + - echo "Running tests..." + - cd c:\projects\ethash\test\c\Debug + - Test.exe + - echo "Finished!" + diff --git a/vendor/github.com/ethereum/ethash/ethash.go b/vendor/github.com/ethereum/ethash/ethash.go new file mode 100644 index 000000000..2a31aaf2d --- /dev/null +++ b/vendor/github.com/ethereum/ethash/ethash.go @@ -0,0 +1,441 @@ +// Copyright 2015 The go-ethereum Authors +// Copyright 2015 Lefteris Karapetsas <lefteris@refu.co> +// Copyright 2015 Matthew Wampler-Doty <matthew.wampler.doty@gmail.com> +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library 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 Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. + +package ethash + +/* +#include "src/libethash/internal.h" + +int ethashGoCallback_cgo(unsigned); +*/ +import "C" + +import ( + "errors" + "fmt" + "io/ioutil" + "math/big" + "math/rand" + "os" + "os/user" + "path/filepath" + "runtime" + "sync" + "sync/atomic" + "time" + "unsafe" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/crypto" + "github.com/ethereum/go-ethereum/logger" + "github.com/ethereum/go-ethereum/logger/glog" + "github.com/ethereum/go-ethereum/pow" +) + +var ( + maxUint256 = new(big.Int).Exp(big.NewInt(2), big.NewInt(256), big.NewInt(0)) + sharedLight = new(Light) +) + +const ( + epochLength uint64 = 30000 + cacheSizeForTesting C.uint64_t = 1024 + dagSizeForTesting C.uint64_t = 1024 * 32 +) + +var DefaultDir = defaultDir() + +func defaultDir() string { + home := os.Getenv("HOME") + if user, err := user.Current(); err == nil { + home = user.HomeDir + } + if runtime.GOOS == "windows" { + return filepath.Join(home, "AppData", "Ethash") + } + return filepath.Join(home, ".ethash") +} + +// cache wraps an ethash_light_t with some metadata +// and automatic memory management. +type cache struct { + epoch uint64 + used time.Time + test bool + + gen sync.Once // ensures cache is only generated once. + ptr *C.struct_ethash_light +} + +// generate creates the actual cache. it can be called from multiple +// goroutines. the first call will generate the cache, subsequent +// calls wait until it is generated. +func (cache *cache) generate() { + cache.gen.Do(func() { + started := time.Now() + seedHash := makeSeedHash(cache.epoch) + glog.V(logger.Debug).Infof("Generating cache for epoch %d (%x)", cache.epoch, seedHash) + size := C.ethash_get_cachesize(C.uint64_t(cache.epoch * epochLength)) + if cache.test { + size = cacheSizeForTesting + } + cache.ptr = C.ethash_light_new_internal(size, (*C.ethash_h256_t)(unsafe.Pointer(&seedHash[0]))) + runtime.SetFinalizer(cache, freeCache) + glog.V(logger.Debug).Infof("Done generating cache for epoch %d, it took %v", cache.epoch, time.Since(started)) + }) +} + +func freeCache(cache *cache) { + C.ethash_light_delete(cache.ptr) + cache.ptr = nil +} + +func (cache *cache) compute(dagSize uint64, hash common.Hash, nonce uint64) (ok bool, mixDigest, result common.Hash) { + ret := C.ethash_light_compute_internal(cache.ptr, C.uint64_t(dagSize), hashToH256(hash), C.uint64_t(nonce)) + // Make sure cache is live until after the C call. + // This is important because a GC might happen and execute + // the finalizer before the call completes. + _ = cache + return bool(ret.success), h256ToHash(ret.mix_hash), h256ToHash(ret.result) +} + +// Light implements the Verify half of the proof of work. It uses a few small +// in-memory caches to verify the nonces found by Full. +type Light struct { + test bool // If set, use a smaller cache size + + mu sync.Mutex // Protects the per-epoch map of verification caches + caches map[uint64]*cache // Currently maintained verification caches + future *cache // Pre-generated cache for the estimated future DAG + + NumCaches int // Maximum number of caches to keep before eviction (only init, don't modify) +} + +// Verify checks whether the block's nonce is valid. +func (l *Light) Verify(block pow.Block) bool { + // TODO: do ethash_quick_verify before getCache in order + // to prevent DOS attacks. + blockNum := block.NumberU64() + if blockNum >= epochLength*2048 { + glog.V(logger.Debug).Infof("block number %d too high, limit is %d", epochLength*2048) + return false + } + + difficulty := block.Difficulty() + /* Cannot happen if block header diff is validated prior to PoW, but can + happen if PoW is checked first due to parallel PoW checking. + We could check the minimum valid difficulty but for SoC we avoid (duplicating) + Ethereum protocol consensus rules here which are not in scope of Ethash + */ + if difficulty.Cmp(common.Big0) == 0 { + glog.V(logger.Debug).Infof("invalid block difficulty") + return false + } + + cache := l.getCache(blockNum) + dagSize := C.ethash_get_datasize(C.uint64_t(blockNum)) + if l.test { + dagSize = dagSizeForTesting + } + // Recompute the hash using the cache. + ok, mixDigest, result := cache.compute(uint64(dagSize), block.HashNoNonce(), block.Nonce()) + if !ok { + return false + } + + // avoid mixdigest malleability as it's not included in a block's "hashNononce" + if block.MixDigest() != mixDigest { + return false + } + + // The actual check. + target := new(big.Int).Div(maxUint256, difficulty) + return result.Big().Cmp(target) <= 0 +} + +func h256ToHash(in C.ethash_h256_t) common.Hash { + return *(*common.Hash)(unsafe.Pointer(&in.b)) +} + +func hashToH256(in common.Hash) C.ethash_h256_t { + return C.ethash_h256_t{b: *(*[32]C.uint8_t)(unsafe.Pointer(&in[0]))} +} + +func (l *Light) getCache(blockNum uint64) *cache { + var c *cache + epoch := blockNum / epochLength + + // If we have a PoW for that epoch, use that + l.mu.Lock() + if l.caches == nil { + l.caches = make(map[uint64]*cache) + } + if l.NumCaches == 0 { + l.NumCaches = 3 + } + c = l.caches[epoch] + if c == nil { + // No cached DAG, evict the oldest if the cache limit was reached + if len(l.caches) >= l.NumCaches { + var evict *cache + for _, cache := range l.caches { + if evict == nil || evict.used.After(cache.used) { + evict = cache + } + } + glog.V(logger.Debug).Infof("Evicting DAG for epoch %d in favour of epoch %d", evict.epoch, epoch) + delete(l.caches, evict.epoch) + } + // If we have the new DAG pre-generated, use that, otherwise create a new one + if l.future != nil && l.future.epoch == epoch { + glog.V(logger.Debug).Infof("Using pre-generated DAG for epoch %d", epoch) + c, l.future = l.future, nil + } else { + glog.V(logger.Debug).Infof("No pre-generated DAG available, creating new for epoch %d", epoch) + c = &cache{epoch: epoch, test: l.test} + } + l.caches[epoch] = c + + // If we just used up the future cache, or need a refresh, regenerate + if l.future == nil || l.future.epoch <= epoch { + glog.V(logger.Debug).Infof("Pre-generating DAG for epoch %d", epoch+1) + l.future = &cache{epoch: epoch + 1, test: l.test} + go l.future.generate() + } + } + c.used = time.Now() + l.mu.Unlock() + + // Wait for generation finish and return the cache + c.generate() + return c +} + +// dag wraps an ethash_full_t with some metadata +// and automatic memory management. +type dag struct { + epoch uint64 + test bool + dir string + + gen sync.Once // ensures DAG is only generated once. + ptr *C.struct_ethash_full +} + +// generate creates the actual DAG. it can be called from multiple +// goroutines. the first call will generate the DAG, subsequent +// calls wait until it is generated. +func (d *dag) generate() { + d.gen.Do(func() { + var ( + started = time.Now() + seedHash = makeSeedHash(d.epoch) + blockNum = C.uint64_t(d.epoch * epochLength) + cacheSize = C.ethash_get_cachesize(blockNum) + dagSize = C.ethash_get_datasize(blockNum) + ) + if d.test { + cacheSize = cacheSizeForTesting + dagSize = dagSizeForTesting + } + if d.dir == "" { + d.dir = DefaultDir + } + glog.V(logger.Info).Infof("Generating DAG for epoch %d (size %d) (%x)", d.epoch, dagSize, seedHash) + // Generate a temporary cache. + // TODO: this could share the cache with Light + cache := C.ethash_light_new_internal(cacheSize, (*C.ethash_h256_t)(unsafe.Pointer(&seedHash[0]))) + defer C.ethash_light_delete(cache) + // Generate the actual DAG. + d.ptr = C.ethash_full_new_internal( + C.CString(d.dir), + hashToH256(seedHash), + dagSize, + cache, + (C.ethash_callback_t)(unsafe.Pointer(C.ethashGoCallback_cgo)), + ) + if d.ptr == nil { + panic("ethash_full_new IO or memory error") + } + runtime.SetFinalizer(d, freeDAG) + glog.V(logger.Info).Infof("Done generating DAG for epoch %d, it took %v", d.epoch, time.Since(started)) + }) +} + +func freeDAG(d *dag) { + C.ethash_full_delete(d.ptr) + d.ptr = nil +} + +func (d *dag) Ptr() unsafe.Pointer { + return unsafe.Pointer(d.ptr.data) +} + +//export ethashGoCallback +func ethashGoCallback(percent C.unsigned) C.int { + glog.V(logger.Info).Infof("Generating DAG: %d%%", percent) + return 0 +} + +// MakeDAG pre-generates a DAG file for the given block number in the +// given directory. If dir is the empty string, the default directory +// is used. +func MakeDAG(blockNum uint64, dir string) error { + d := &dag{epoch: blockNum / epochLength, dir: dir} + if blockNum >= epochLength*2048 { + return fmt.Errorf("block number too high, limit is %d", epochLength*2048) + } + d.generate() + if d.ptr == nil { + return errors.New("failed") + } + return nil +} + +// Full implements the Search half of the proof of work. +type Full struct { + Dir string // use this to specify a non-default DAG directory + + test bool // if set use a smaller DAG size + turbo bool + hashRate int32 + + mu sync.Mutex // protects dag + current *dag // current full DAG +} + +func (pow *Full) getDAG(blockNum uint64) (d *dag) { + epoch := blockNum / epochLength + pow.mu.Lock() + if pow.current != nil && pow.current.epoch == epoch { + d = pow.current + } else { + d = &dag{epoch: epoch, test: pow.test, dir: pow.Dir} + pow.current = d + } + pow.mu.Unlock() + // wait for it to finish generating. + d.generate() + return d +} + +func (pow *Full) Search(block pow.Block, stop <-chan struct{}, index int) (nonce uint64, mixDigest []byte) { + dag := pow.getDAG(block.NumberU64()) + + r := rand.New(rand.NewSource(time.Now().UnixNano())) + diff := block.Difficulty() + + i := int64(0) + starti := i + start := time.Now().UnixNano() + previousHashrate := int32(0) + + nonce = uint64(r.Int63()) + hash := hashToH256(block.HashNoNonce()) + target := new(big.Int).Div(maxUint256, diff) + for { + select { + case <-stop: + atomic.AddInt32(&pow.hashRate, -previousHashrate) + return 0, nil + default: + i++ + + // we don't have to update hash rate on every nonce, so update after + // first nonce check and then after 2^X nonces + if i == 2 || ((i % (1 << 16)) == 0) { + elapsed := time.Now().UnixNano() - start + hashes := (float64(1e9) / float64(elapsed)) * float64(i-starti) + hashrateDiff := int32(hashes) - previousHashrate + previousHashrate = int32(hashes) + atomic.AddInt32(&pow.hashRate, hashrateDiff) + } + + ret := C.ethash_full_compute(dag.ptr, hash, C.uint64_t(nonce)) + result := h256ToHash(ret.result).Big() + + // TODO: disagrees with the spec https://github.com/ethereum/wiki/wiki/Ethash#mining + if ret.success && result.Cmp(target) <= 0 { + mixDigest = C.GoBytes(unsafe.Pointer(&ret.mix_hash), C.int(32)) + atomic.AddInt32(&pow.hashRate, -previousHashrate) + return nonce, mixDigest + } + nonce += 1 + } + + if !pow.turbo { + time.Sleep(20 * time.Microsecond) + } + } +} + +func (pow *Full) GetHashrate() int64 { + return int64(atomic.LoadInt32(&pow.hashRate)) +} + +func (pow *Full) Turbo(on bool) { + // TODO: this needs to use an atomic operation. + pow.turbo = on +} + +// Ethash combines block verification with Light and +// nonce searching with Full into a single proof of work. +type Ethash struct { + *Light + *Full +} + +// New creates an instance of the proof of work. +func New() *Ethash { + return &Ethash{new(Light), &Full{turbo: true}} +} + +// NewShared creates an instance of the proof of work., where a single instance +// of the Light cache is shared across all instances created with NewShared. +func NewShared() *Ethash { + return &Ethash{sharedLight, &Full{turbo: true}} +} + +// NewForTesting creates a proof of work for use in unit tests. +// It uses a smaller DAG and cache size to keep test times low. +// DAG files are stored in a temporary directory. +// +// Nonces found by a testing instance are not verifiable with a +// regular-size cache. +func NewForTesting() (*Ethash, error) { + dir, err := ioutil.TempDir("", "ethash-test") + if err != nil { + return nil, err + } + return &Ethash{&Light{test: true}, &Full{Dir: dir, test: true}}, nil +} + +func GetSeedHash(blockNum uint64) ([]byte, error) { + if blockNum >= epochLength*2048 { + return nil, fmt.Errorf("block number too high, limit is %d", epochLength*2048) + } + sh := makeSeedHash(blockNum / epochLength) + return sh[:], nil +} + +func makeSeedHash(epoch uint64) (sh common.Hash) { + for ; epoch > 0; epoch-- { + sh = crypto.Sha3Hash(sh[:]) + } + return sh +} diff --git a/vendor/github.com/ethereum/ethash/ethashc.go b/vendor/github.com/ethereum/ethash/ethashc.go new file mode 100644 index 000000000..1d2ba1613 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/ethashc.go @@ -0,0 +1,51 @@ +// Copyright 2015 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library 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 Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. + +package ethash + +/* + -mno-stack-arg-probe disables stack probing which avoids the function + __chkstk_ms being linked. this avoids a clash of this symbol as we also + separately link the secp256k1 lib which ends up defining this symbol + + 1. https://gcc.gnu.org/onlinedocs/gccint/Stack-Checking.html + 2. https://groups.google.com/forum/#!msg/golang-dev/v1bziURSQ4k/88fXuJ24e-gJ + 3. https://groups.google.com/forum/#!topic/golang-nuts/VNP6Mwz_B6o + +*/ + +/* +#cgo CFLAGS: -std=gnu99 -Wall +#cgo windows CFLAGS: -mno-stack-arg-probe +#cgo LDFLAGS: -lm + +#include "src/libethash/internal.c" +#include "src/libethash/sha3.c" +#include "src/libethash/io.c" + +#ifdef _WIN32 +# include "src/libethash/io_win32.c" +# include "src/libethash/mmap_win32.c" +#else +# include "src/libethash/io_posix.c" +#endif + +// 'gateway function' for calling back into go. +extern int ethashGoCallback(unsigned); +int ethashGoCallback_cgo(unsigned percent) { return ethashGoCallback(percent); } + +*/ +import "C" diff --git a/vendor/github.com/ethereum/ethash/setup.py b/vendor/github.com/ethereum/ethash/setup.py new file mode 100755 index 000000000..18aa20f6d --- /dev/null +++ b/vendor/github.com/ethereum/ethash/setup.py @@ -0,0 +1,47 @@ +#!/usr/bin/env python +import os +from distutils.core import setup, Extension +sources = [ + 'src/python/core.c', + 'src/libethash/io.c', + 'src/libethash/internal.c', + 'src/libethash/sha3.c'] +if os.name == 'nt': + sources += [ + 'src/libethash/util_win32.c', + 'src/libethash/io_win32.c', + 'src/libethash/mmap_win32.c', + ] +else: + sources += [ + 'src/libethash/io_posix.c' + ] +depends = [ + 'src/libethash/ethash.h', + 'src/libethash/compiler.h', + 'src/libethash/data_sizes.h', + 'src/libethash/endian.h', + 'src/libethash/ethash.h', + 'src/libethash/io.h', + 'src/libethash/fnv.h', + 'src/libethash/internal.h', + 'src/libethash/sha3.h', + 'src/libethash/util.h', +] +pyethash = Extension('pyethash', + sources=sources, + depends=depends, + extra_compile_args=["-Isrc/", "-std=gnu99", "-Wall"]) + +setup( + name='pyethash', + author="Matthew Wampler-Doty", + author_email="matthew.wampler.doty@gmail.com", + license='GPL', + version='0.1.23', + url='https://github.com/ethereum/ethash', + download_url='https://github.com/ethereum/ethash/tarball/v23', + description=('Python wrappers for ethash, the ethereum proof of work' + 'hashing function'), + ext_modules=[pyethash], +) diff --git a/vendor/github.com/ethereum/ethash/src/libethash/CMakeLists.txt b/vendor/github.com/ethereum/ethash/src/libethash/CMakeLists.txt new file mode 100644 index 000000000..a65621c3e --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/CMakeLists.txt @@ -0,0 +1,44 @@ +set(LIBRARY ethash) + +if (CPPETHEREUM) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC") +endif () + +set(CMAKE_BUILD_TYPE Release) + +if (NOT MSVC) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99") +endif() + +set(FILES util.h + io.c + internal.c + ethash.h + endian.h + compiler.h + fnv.h + data_sizes.h) + +if (MSVC) + list(APPEND FILES util_win32.c io_win32.c mmap_win32.c) +else() + list(APPEND FILES io_posix.c) +endif() + +if (NOT CRYPTOPP_FOUND) + find_package(CryptoPP 5.6.2) +endif() + +if (CRYPTOPP_FOUND) + add_definitions(-DWITH_CRYPTOPP) + include_directories( ${CRYPTOPP_INCLUDE_DIRS} ) + list(APPEND FILES sha3_cryptopp.cpp sha3_cryptopp.h) +else() + list(APPEND FILES sha3.c sha3.h) +endif() + +add_library(${LIBRARY} ${FILES}) + +if (CRYPTOPP_FOUND) + TARGET_LINK_LIBRARIES(${LIBRARY} ${CRYPTOPP_LIBRARIES}) +endif() diff --git a/vendor/github.com/ethereum/ethash/src/libethash/compiler.h b/vendor/github.com/ethereum/ethash/src/libethash/compiler.h new file mode 100644 index 000000000..9695871cd --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/compiler.h @@ -0,0 +1,33 @@ +/* + This file is part of cpp-ethereum. + + cpp-ethereum is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + cpp-ethereum 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file compiler.h + * @date 2014 + */ +#pragma once + +// Visual Studio doesn't support the inline keyword in C mode +#if defined(_MSC_VER) && !defined(__cplusplus) +#define inline __inline +#endif + +// pretend restrict is a standard keyword +#if defined(_MSC_VER) +#define restrict __restrict +#else +#define restrict __restrict__ +#endif + diff --git a/vendor/github.com/ethereum/ethash/src/libethash/data_sizes.h b/vendor/github.com/ethereum/ethash/src/libethash/data_sizes.h new file mode 100644 index 000000000..83cc30bcb --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/data_sizes.h @@ -0,0 +1,812 @@ +/* + This file is part of cpp-ethereum. + + cpp-ethereum is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software FoundationUUU,either version 3 of the LicenseUUU,or + (at your option) any later version. + + cpp-ethereum is distributed in the hope that it will be usefulU, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with cpp-ethereum. If notUUU,see <http://www.gnu.org/licenses/>. +*/ + +/** @file data_sizes.h +* @author Matthew Wampler-Doty <negacthulhu@gmail.com> +* @date 2015 +*/ + +#pragma once + +#include <stdint.h> +#include "compiler.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#include <stdint.h> + +// 2048 Epochs (~20 years) worth of tabulated DAG sizes + +// Generated with the following Mathematica Code: + +// GetCacheSizes[n_] := Module[{ +// CacheSizeBytesInit = 2^24, +// CacheGrowth = 2^17, +// HashBytes = 64, +// j = 0}, +// Reap[ +// While[j < n, +// Module[{i = +// Floor[(CacheSizeBytesInit + CacheGrowth * j) / HashBytes]}, +// While[! PrimeQ[i], i--]; +// Sow[i*HashBytes]; j++]]]][[2]][[1]] + + +static const uint64_t dag_sizes[2048] = { + 1073739904U, 1082130304U, 1090514816U, 1098906752U, 1107293056U, + 1115684224U, 1124070016U, 1132461952U, 1140849536U, 1149232768U, + 1157627776U, 1166013824U, 1174404736U, 1182786944U, 1191180416U, + 1199568512U, 1207958912U, 1216345216U, 1224732032U, 1233124736U, + 1241513344U, 1249902464U, 1258290304U, 1266673792U, 1275067264U, + 1283453312U, 1291844992U, 1300234112U, 1308619904U, 1317010048U, + 1325397376U, 1333787776U, 1342176128U, 1350561664U, 1358954368U, + 1367339392U, 1375731584U, 1384118144U, 1392507008U, 1400897408U, + 1409284736U, 1417673344U, 1426062464U, 1434451072U, 1442839168U, + 1451229056U, 1459615616U, 1468006016U, 1476394112U, 1484782976U, + 1493171584U, 1501559168U, 1509948032U, 1518337664U, 1526726528U, + 1535114624U, 1543503488U, 1551892096U, 1560278656U, 1568669056U, + 1577056384U, 1585446272U, 1593831296U, 1602219392U, 1610610304U, + 1619000192U, 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Module[{i = Floor[(DataSetSizeBytesInit + DataSetGrowth * j) / (CacheMultiplier * HashBytes)]}, +// While[! PrimeQ[i], i--]; +// Sow[i*HashBytes]; j++]]]][[2]][[1]] + +const uint64_t cache_sizes[2048] = { + 16776896U, 16907456U, 17039296U, 17170112U, 17301056U, 17432512U, 17563072U, + 17693888U, 17824192U, 17955904U, 18087488U, 18218176U, 18349504U, 18481088U, + 18611392U, 18742336U, 18874304U, 19004224U, 19135936U, 19267264U, 19398208U, + 19529408U, 19660096U, 19791424U, 19922752U, 20053952U, 20184896U, 20315968U, + 20446912U, 20576576U, 20709184U, 20840384U, 20971072U, 21102272U, 21233216U, + 21364544U, 21494848U, 21626816U, 21757376U, 21887552U, 22019392U, 22151104U, + 22281536U, 22412224U, 22543936U, 22675264U, 22806464U, 22935872U, 23068096U, + 23198272U, 23330752U, 23459008U, 23592512U, 23723968U, 23854912U, 23986112U, + 24116672U, 24247616U, 24378688U, 24509504U, 24640832U, 24772544U, 24903488U, + 25034432U, 25165376U, 25296704U, 25427392U, 25558592U, 25690048U, 25820096U, + 25951936U, 26081728U, 26214208U, 26345024U, 26476096U, 26606656U, 26737472U, + 26869184U, 26998208U, 27131584U, 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255983296U, 256114624U, 256244416U, 256374208U, 256507712U, + 256636096U, 256768832U, 256900544U, 257031616U, 257162176U, 257294272U, + 257424448U, 257555776U, 257686976U, 257818432U, 257949632U, 258079552U, + 258211136U, 258342464U, 258473408U, 258603712U, 258734656U, 258867008U, + 258996544U, 259127744U, 259260224U, 259391296U, 259522112U, 259651904U, + 259784384U, 259915328U, 260045888U, 260175424U, 260308544U, 260438336U, + 260570944U, 260700992U, 260832448U, 260963776U, 261092672U, 261226304U, + 261356864U, 261487936U, 261619648U, 261750592U, 261879872U, 262011968U, + 262143424U, 262274752U, 262404416U, 262537024U, 262667968U, 262799296U, + 262928704U, 263061184U, 263191744U, 263322944U, 263454656U, 263585216U, + 263716672U, 263847872U, 263978944U, 264108608U, 264241088U, 264371648U, + 264501184U, 264632768U, 264764096U, 264895936U, 265024576U, 265158464U, + 265287488U, 265418432U, 265550528U, 265681216U, 265813312U, 265943488U, + 266075968U, 266206144U, 266337728U, 266468032U, 266600384U, 266731072U, + 266862272U, 266993344U, 267124288U, 267255616U, 267386432U, 267516992U, + 267648704U, 267777728U, 267910592U, 268040512U, 268172096U, 268302784U, + 268435264U, 268566208U, 268696256U, 268828096U, 268959296U, 269090368U, + 269221312U, 269352256U, 269482688U, 269614784U, 269745856U, 269876416U, + 270007616U, 270139328U, 270270272U, 270401216U, 270531904U, 270663616U, + 270791744U, 270924736U, 271056832U, 271186112U, 271317184U, 271449536U, + 271580992U, 271711936U, 271843136U, 271973056U, 272105408U, 272236352U, + 272367296U, 272498368U, 272629568U, 272759488U, 272891456U, 273022784U, + 273153856U, 273284672U, 273415616U, 273547072U, 273677632U, 273808448U, + 273937088U, 274071488U, 274200896U, 274332992U, 274463296U, 274595392U, + 274726208U, 274857536U, 274988992U, 275118656U, 275250496U, 275382208U, + 275513024U, 275643968U, 275775296U, 275906368U, 276037184U, 276167872U, + 276297664U, 276429376U, 276560576U, 276692672U, 276822976U, 276955072U, + 277085632U, 277216832U, 277347008U, 277478848U, 277609664U, 277740992U, + 277868608U, 278002624U, 278134336U, 278265536U, 278395328U, 278526784U, + 278657728U, 278789824U, 278921152U, 279052096U, 279182912U, 279313088U, + 279443776U, 279576256U, 279706048U, 279838528U, 279969728U, 280099648U, + 280230976U, 280361408U, 280493632U, 280622528U, 280755392U, 280887104U, + 281018176U, 281147968U, 281278912U, 281411392U, 281542592U, 281673152U, + 281803712U, 281935552U, 282066496U, 282197312U, 282329024U, 282458816U, + 282590272U, 282720832U, 282853184U, 282983744U, 283115072U, 283246144U, + 283377344U, 283508416U, 283639744U, 283770304U, 283901504U, 284032576U, + 284163136U, 284294848U, 284426176U, 284556992U, 284687296U, 284819264U, + 284950208U, 285081536U +}; + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/endian.h b/vendor/github.com/ethereum/ethash/src/libethash/endian.h new file mode 100644 index 000000000..5b8abf03d --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/endian.h @@ -0,0 +1,78 @@ +#pragma once + +#include <stdint.h> +#include "compiler.h" + +#if defined(__MINGW32__) || defined(_WIN32) + # define LITTLE_ENDIAN 1234 + # define BYTE_ORDER LITTLE_ENDIAN +#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) + # include <sys/endian.h> +#elif defined(__OpenBSD__) || defined(__SVR4) + # include <sys/types.h> +#elif defined(__APPLE__) +# include <machine/endian.h> +#elif defined( BSD ) && (BSD >= 199103) + # include <machine/endian.h> +#elif defined( __QNXNTO__ ) && defined( __LITTLEENDIAN__ ) + # define LITTLE_ENDIAN 1234 + # define BYTE_ORDER LITTLE_ENDIAN +#elif defined( __QNXNTO__ ) && defined( __BIGENDIAN__ ) + # define BIG_ENDIAN 1234 + # define BYTE_ORDER BIG_ENDIAN +#else +# include <endian.h> +#endif + +#if defined(_WIN32) +#include <stdlib.h> +#define ethash_swap_u32(input_) _byteswap_ulong(input_) +#define ethash_swap_u64(input_) _byteswap_uint64(input_) +#elif defined(__APPLE__) +#include <libkern/OSByteOrder.h> +#define ethash_swap_u32(input_) OSSwapInt32(input_) +#define ethash_swap_u64(input_) OSSwapInt64(input_) +#elif defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) +#define ethash_swap_u32(input_) bswap32(input_) +#define ethash_swap_u64(input_) bswap64(input_) +#elif defined(__OpenBSD__) +#include <endian.h> +#define ethash_swap_u32(input_) swap32(input_) +#define ethash_swap_u64(input_) swap64(input_) +#else // posix +#include <byteswap.h> +#define ethash_swap_u32(input_) bswap_32(input_) +#define ethash_swap_u64(input_) bswap_64(input_) +#endif + + +#if LITTLE_ENDIAN == BYTE_ORDER + +#define fix_endian32(dst_ ,src_) dst_ = src_ +#define fix_endian32_same(val_) +#define fix_endian64(dst_, src_) dst_ = src_ +#define fix_endian64_same(val_) +#define fix_endian_arr32(arr_, size_) +#define fix_endian_arr64(arr_, size_) + +#elif BIG_ENDIAN == BYTE_ORDER + +#define fix_endian32(dst_, src_) dst_ = ethash_swap_u32(src_) +#define fix_endian32_same(val_) val_ = ethash_swap_u32(val_) +#define fix_endian64(dst_, src_) dst_ = ethash_swap_u64(src_) +#define fix_endian64_same(val_) val_ = ethash_swap_u64(val_) +#define fix_endian_arr32(arr_, size_) \ + do { \ + for (unsigned i_ = 0; i_ < (size_); ++i_) { \ + arr_[i_] = ethash_swap_u32(arr_[i_]); \ + } \ + } while (0) +#define fix_endian_arr64(arr_, size_) \ + do { \ + for (unsigned i_ = 0; i_ < (size_); ++i_) { \ + arr_[i_] = ethash_swap_u64(arr_[i_]); \ + } \ + } while (0) +#else +# error "endian not supported" +#endif // BYTE_ORDER diff --git a/vendor/github.com/ethereum/ethash/src/libethash/ethash.h b/vendor/github.com/ethereum/ethash/src/libethash/ethash.h new file mode 100644 index 000000000..0c6a1f9e9 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/ethash.h @@ -0,0 +1,147 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ + +/** @file ethash.h +* @date 2015 +*/ +#pragma once + +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include <stddef.h> +#include "compiler.h" + +#define ETHASH_REVISION 23 +#define ETHASH_DATASET_BYTES_INIT 1073741824U // 2**30 +#define ETHASH_DATASET_BYTES_GROWTH 8388608U // 2**23 +#define ETHASH_CACHE_BYTES_INIT 1073741824U // 2**24 +#define ETHASH_CACHE_BYTES_GROWTH 131072U // 2**17 +#define ETHASH_EPOCH_LENGTH 30000U +#define ETHASH_MIX_BYTES 128 +#define ETHASH_HASH_BYTES 64 +#define ETHASH_DATASET_PARENTS 256 +#define ETHASH_CACHE_ROUNDS 3 +#define ETHASH_ACCESSES 64 +#define ETHASH_DAG_MAGIC_NUM_SIZE 8 +#define ETHASH_DAG_MAGIC_NUM 0xFEE1DEADBADDCAFE + +#ifdef __cplusplus +extern "C" { +#endif + +/// Type of a seedhash/blockhash e.t.c. +typedef struct ethash_h256 { uint8_t b[32]; } ethash_h256_t; + +// convenience macro to statically initialize an h256_t +// usage: +// ethash_h256_t a = ethash_h256_static_init(1, 2, 3, ... ) +// have to provide all 32 values. If you don't provide all the rest +// will simply be unitialized (not guranteed to be 0) +#define ethash_h256_static_init(...) \ + { {__VA_ARGS__} } + +struct ethash_light; +typedef struct ethash_light* ethash_light_t; +struct ethash_full; +typedef struct ethash_full* ethash_full_t; +typedef int(*ethash_callback_t)(unsigned); + +typedef struct ethash_return_value { + ethash_h256_t result; + ethash_h256_t mix_hash; + bool success; +} ethash_return_value_t; + +/** + * Allocate and initialize a new ethash_light handler + * + * @param block_number The block number for which to create the handler + * @return Newly allocated ethash_light handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_cache_nodes() + */ +ethash_light_t ethash_light_new(uint64_t block_number); +/** + * Frees a previously allocated ethash_light handler + * @param light The light handler to free + */ +void ethash_light_delete(ethash_light_t light); +/** + * Calculate the light client data + * + * @param light The light client handler + * @param header_hash The header hash to pack into the mix + * @param nonce The nonce to pack into the mix + * @return an object of ethash_return_value_t holding the return values + */ +ethash_return_value_t ethash_light_compute( + ethash_light_t light, + ethash_h256_t const header_hash, + uint64_t nonce +); + +/** + * Allocate and initialize a new ethash_full handler + * + * @param light The light handler containing the cache. + * @param callback A callback function with signature of @ref ethash_callback_t + * It accepts an unsigned with which a progress of DAG calculation + * can be displayed. If all goes well the callback should return 0. + * If a non-zero value is returned then DAG generation will stop. + * Be advised. A progress value of 100 means that DAG creation is + * almost complete and that this function will soon return succesfully. + * It does not mean that the function has already had a succesfull return. + * @return Newly allocated ethash_full handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_full_data() + */ +ethash_full_t ethash_full_new(ethash_light_t light, ethash_callback_t callback); + +/** + * Frees a previously allocated ethash_full handler + * @param full The light handler to free + */ +void ethash_full_delete(ethash_full_t full); +/** + * Calculate the full client data + * + * @param full The full client handler + * @param header_hash The header hash to pack into the mix + * @param nonce The nonce to pack into the mix + * @return An object of ethash_return_value to hold the return value + */ +ethash_return_value_t ethash_full_compute( + ethash_full_t full, + ethash_h256_t const header_hash, + uint64_t nonce +); +/** + * Get a pointer to the full DAG data + */ +void const* ethash_full_dag(ethash_full_t full); +/** + * Get the size of the DAG data + */ +uint64_t ethash_full_dag_size(ethash_full_t full); + +/** + * Calculate the seedhash for a given block number + */ +ethash_h256_t ethash_get_seedhash(uint64_t block_number); + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/fnv.h b/vendor/github.com/ethereum/ethash/src/libethash/fnv.h new file mode 100644 index 000000000..82cd655c4 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/fnv.h @@ -0,0 +1,43 @@ +/* + This file is part of cpp-ethereum. + + cpp-ethereum is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + cpp-ethereum 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file fnv.h +* @author Matthew Wampler-Doty <negacthulhu@gmail.com> +* @date 2015 +*/ + +#pragma once +#include <stdint.h> +#include "compiler.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define FNV_PRIME 0x01000193 + +/* The FNV-1 spec multiplies the prime with the input one byte (octet) in turn. + We instead multiply it with the full 32-bit input. + This gives a different result compared to a canonical FNV-1 implementation. +*/ +static inline uint32_t fnv_hash(uint32_t const x, uint32_t const y) +{ + return x * FNV_PRIME ^ y; +} + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/internal.c b/vendor/github.com/ethereum/ethash/src/libethash/internal.c new file mode 100644 index 000000000..0a830fc82 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/internal.c @@ -0,0 +1,507 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file internal.c +* @author Tim Hughes <tim@twistedfury.com> +* @author Matthew Wampler-Doty +* @date 2015 +*/ + +#include <assert.h> +#include <inttypes.h> +#include <stddef.h> +#include <errno.h> +#include <math.h> +#include "mmap.h" +#include "ethash.h" +#include "fnv.h" +#include "endian.h" +#include "internal.h" +#include "data_sizes.h" +#include "io.h" + +#ifdef WITH_CRYPTOPP + +#include "sha3_cryptopp.h" + +#else +#include "sha3.h" +#endif // WITH_CRYPTOPP + +uint64_t ethash_get_datasize(uint64_t const block_number) +{ + assert(block_number / ETHASH_EPOCH_LENGTH < 2048); + return dag_sizes[block_number / ETHASH_EPOCH_LENGTH]; +} + +uint64_t ethash_get_cachesize(uint64_t const block_number) +{ + assert(block_number / ETHASH_EPOCH_LENGTH < 2048); + return cache_sizes[block_number / ETHASH_EPOCH_LENGTH]; +} + +// Follows Sergio's "STRICT MEMORY HARD HASHING FUNCTIONS" (2014) +// https://bitslog.files.wordpress.com/2013/12/memohash-v0-3.pdf +// SeqMemoHash(s, R, N) +bool static ethash_compute_cache_nodes( + node* const nodes, + uint64_t cache_size, + ethash_h256_t const* seed +) +{ + if (cache_size % sizeof(node) != 0) { + return false; + } + uint32_t const num_nodes = (uint32_t) (cache_size / sizeof(node)); + + SHA3_512(nodes[0].bytes, (uint8_t*)seed, 32); + + for (uint32_t i = 1; i != num_nodes; ++i) { + SHA3_512(nodes[i].bytes, nodes[i - 1].bytes, 64); + } + + for (uint32_t j = 0; j != ETHASH_CACHE_ROUNDS; j++) { + for (uint32_t i = 0; i != num_nodes; i++) { + uint32_t const idx = nodes[i].words[0] % num_nodes; + node data; + data = nodes[(num_nodes - 1 + i) % num_nodes]; + for (uint32_t w = 0; w != NODE_WORDS; ++w) { + data.words[w] ^= nodes[idx].words[w]; + } + SHA3_512(nodes[i].bytes, data.bytes, sizeof(data)); + } + } + + // now perform endian conversion + fix_endian_arr32(nodes->words, num_nodes * NODE_WORDS); + return true; +} + +void ethash_calculate_dag_item( + node* const ret, + uint32_t node_index, + ethash_light_t const light +) +{ + uint32_t num_parent_nodes = (uint32_t) (light->cache_size / sizeof(node)); + node const* cache_nodes = (node const *) light->cache; + node const* init = &cache_nodes[node_index % num_parent_nodes]; + memcpy(ret, init, sizeof(node)); + ret->words[0] ^= node_index; + SHA3_512(ret->bytes, ret->bytes, sizeof(node)); +#if defined(_M_X64) && ENABLE_SSE + __m128i const fnv_prime = _mm_set1_epi32(FNV_PRIME); + __m128i xmm0 = ret->xmm[0]; + __m128i xmm1 = ret->xmm[1]; + __m128i xmm2 = ret->xmm[2]; + __m128i xmm3 = ret->xmm[3]; +#endif + + for (uint32_t i = 0; i != ETHASH_DATASET_PARENTS; ++i) { + uint32_t parent_index = fnv_hash(node_index ^ i, ret->words[i % NODE_WORDS]) % num_parent_nodes; + node const *parent = &cache_nodes[parent_index]; + +#if defined(_M_X64) && ENABLE_SSE + { + xmm0 = _mm_mullo_epi32(xmm0, fnv_prime); + xmm1 = _mm_mullo_epi32(xmm1, fnv_prime); + xmm2 = _mm_mullo_epi32(xmm2, fnv_prime); + xmm3 = _mm_mullo_epi32(xmm3, fnv_prime); + xmm0 = _mm_xor_si128(xmm0, parent->xmm[0]); + xmm1 = _mm_xor_si128(xmm1, parent->xmm[1]); + xmm2 = _mm_xor_si128(xmm2, parent->xmm[2]); + xmm3 = _mm_xor_si128(xmm3, parent->xmm[3]); + + // have to write to ret as values are used to compute index + ret->xmm[0] = xmm0; + ret->xmm[1] = xmm1; + ret->xmm[2] = xmm2; + ret->xmm[3] = xmm3; + } + #else + { + for (unsigned w = 0; w != NODE_WORDS; ++w) { + ret->words[w] = fnv_hash(ret->words[w], parent->words[w]); + } + } +#endif + } + SHA3_512(ret->bytes, ret->bytes, sizeof(node)); +} + +bool ethash_compute_full_data( + void* mem, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +) +{ + if (full_size % (sizeof(uint32_t) * MIX_WORDS) != 0 || + (full_size % sizeof(node)) != 0) { + return false; + } + uint32_t const max_n = (uint32_t)(full_size / sizeof(node)); + node* full_nodes = mem; + double const progress_change = 1.0f / max_n; + double progress = 0.0f; + // now compute full nodes + for (uint32_t n = 0; n != max_n; ++n) { + if (callback && + n % (max_n / 100) == 0 && + callback((unsigned int)(ceil(progress * 100.0f))) != 0) { + + return false; + } + progress += progress_change; + ethash_calculate_dag_item(&(full_nodes[n]), n, light); + } + return true; +} + +static bool ethash_hash( + ethash_return_value_t* ret, + node const* full_nodes, + ethash_light_t const light, + uint64_t full_size, + ethash_h256_t const header_hash, + uint64_t const nonce +) +{ + if (full_size % MIX_WORDS != 0) { + return false; + } + + // pack hash and nonce together into first 40 bytes of s_mix + assert(sizeof(node) * 8 == 512); + node s_mix[MIX_NODES + 1]; + memcpy(s_mix[0].bytes, &header_hash, 32); + fix_endian64(s_mix[0].double_words[4], nonce); + + // compute sha3-512 hash and replicate across mix + SHA3_512(s_mix->bytes, s_mix->bytes, 40); + fix_endian_arr32(s_mix[0].words, 16); + + node* const mix = s_mix + 1; + for (uint32_t w = 0; w != MIX_WORDS; ++w) { + mix->words[w] = s_mix[0].words[w % NODE_WORDS]; + } + + unsigned const page_size = sizeof(uint32_t) * MIX_WORDS; + unsigned const num_full_pages = (unsigned) (full_size / page_size); + + for (unsigned i = 0; i != ETHASH_ACCESSES; ++i) { + uint32_t const index = fnv_hash(s_mix->words[0] ^ i, mix->words[i % MIX_WORDS]) % num_full_pages; + + for (unsigned n = 0; n != MIX_NODES; ++n) { + node const* dag_node; + if (full_nodes) { + dag_node = &full_nodes[MIX_NODES * index + n]; + } else { + node tmp_node; + ethash_calculate_dag_item(&tmp_node, index * MIX_NODES + n, light); + dag_node = &tmp_node; + } + +#if defined(_M_X64) && ENABLE_SSE + { + __m128i fnv_prime = _mm_set1_epi32(FNV_PRIME); + __m128i xmm0 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[0]); + __m128i xmm1 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[1]); + __m128i xmm2 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[2]); + __m128i xmm3 = _mm_mullo_epi32(fnv_prime, mix[n].xmm[3]); + mix[n].xmm[0] = _mm_xor_si128(xmm0, dag_node->xmm[0]); + mix[n].xmm[1] = _mm_xor_si128(xmm1, dag_node->xmm[1]); + mix[n].xmm[2] = _mm_xor_si128(xmm2, dag_node->xmm[2]); + mix[n].xmm[3] = _mm_xor_si128(xmm3, dag_node->xmm[3]); + } + #else + { + for (unsigned w = 0; w != NODE_WORDS; ++w) { + mix[n].words[w] = fnv_hash(mix[n].words[w], dag_node->words[w]); + } + } +#endif + } + + } + + // compress mix + for (uint32_t w = 0; w != MIX_WORDS; w += 4) { + uint32_t reduction = mix->words[w + 0]; + reduction = reduction * FNV_PRIME ^ mix->words[w + 1]; + reduction = reduction * FNV_PRIME ^ mix->words[w + 2]; + reduction = reduction * FNV_PRIME ^ mix->words[w + 3]; + mix->words[w / 4] = reduction; + } + + fix_endian_arr32(mix->words, MIX_WORDS / 4); + memcpy(&ret->mix_hash, mix->bytes, 32); + // final Keccak hash + SHA3_256(&ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix) + return true; +} + +void ethash_quick_hash( + ethash_h256_t* return_hash, + ethash_h256_t const* header_hash, + uint64_t nonce, + ethash_h256_t const* mix_hash +) +{ + uint8_t buf[64 + 32]; + memcpy(buf, header_hash, 32); + fix_endian64_same(nonce); + memcpy(&(buf[32]), &nonce, 8); + SHA3_512(buf, buf, 40); + memcpy(&(buf[64]), mix_hash, 32); + SHA3_256(return_hash, buf, 64 + 32); +} + +ethash_h256_t ethash_get_seedhash(uint64_t block_number) +{ + ethash_h256_t ret; + ethash_h256_reset(&ret); + uint64_t const epochs = block_number / ETHASH_EPOCH_LENGTH; + for (uint32_t i = 0; i < epochs; ++i) + SHA3_256(&ret, (uint8_t*)&ret, 32); + return ret; +} + +bool ethash_quick_check_difficulty( + ethash_h256_t const* header_hash, + uint64_t const nonce, + ethash_h256_t const* mix_hash, + ethash_h256_t const* boundary +) +{ + + ethash_h256_t return_hash; + ethash_quick_hash(&return_hash, header_hash, nonce, mix_hash); + return ethash_check_difficulty(&return_hash, boundary); +} + +ethash_light_t ethash_light_new_internal(uint64_t cache_size, ethash_h256_t const* seed) +{ + struct ethash_light *ret; + ret = calloc(sizeof(*ret), 1); + if (!ret) { + return NULL; + } + ret->cache = malloc((size_t)cache_size); + if (!ret->cache) { + goto fail_free_light; + } + node* nodes = (node*)ret->cache; + if (!ethash_compute_cache_nodes(nodes, cache_size, seed)) { + goto fail_free_cache_mem; + } + ret->cache_size = cache_size; + return ret; + +fail_free_cache_mem: + free(ret->cache); +fail_free_light: + free(ret); + return NULL; +} + +ethash_light_t ethash_light_new(uint64_t block_number) +{ + ethash_h256_t seedhash = ethash_get_seedhash(block_number); + ethash_light_t ret; + ret = ethash_light_new_internal(ethash_get_cachesize(block_number), &seedhash); + ret->block_number = block_number; + return ret; +} + +void ethash_light_delete(ethash_light_t light) +{ + if (light->cache) { + free(light->cache); + } + free(light); +} + +ethash_return_value_t ethash_light_compute_internal( + ethash_light_t light, + uint64_t full_size, + ethash_h256_t const header_hash, + uint64_t nonce +) +{ + ethash_return_value_t ret; + ret.success = true; + if (!ethash_hash(&ret, NULL, light, full_size, header_hash, nonce)) { + ret.success = false; + } + return ret; +} + +ethash_return_value_t ethash_light_compute( + ethash_light_t light, + ethash_h256_t const header_hash, + uint64_t nonce +) +{ + uint64_t full_size = ethash_get_datasize(light->block_number); + return ethash_light_compute_internal(light, full_size, header_hash, nonce); +} + +static bool ethash_mmap(struct ethash_full* ret, FILE* f) +{ + int fd; + char* mmapped_data; + errno = 0; + ret->file = f; + if ((fd = ethash_fileno(ret->file)) == -1) { + return false; + } + mmapped_data= mmap( + NULL, + (size_t)ret->file_size + ETHASH_DAG_MAGIC_NUM_SIZE, + PROT_READ | PROT_WRITE, + MAP_SHARED, + fd, + 0 + ); + if (mmapped_data == MAP_FAILED) { + return false; + } + ret->data = (node*)(mmapped_data + ETHASH_DAG_MAGIC_NUM_SIZE); + return true; +} + +ethash_full_t ethash_full_new_internal( + char const* dirname, + ethash_h256_t const seed_hash, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +) +{ + struct ethash_full* ret; + FILE *f = NULL; + ret = calloc(sizeof(*ret), 1); + if (!ret) { + return NULL; + } + ret->file_size = (size_t)full_size; + switch (ethash_io_prepare(dirname, seed_hash, &f, (size_t)full_size, false)) { + case ETHASH_IO_FAIL: + // ethash_io_prepare will do all ETHASH_CRITICAL() logging in fail case + goto fail_free_full; + case ETHASH_IO_MEMO_MATCH: + if (!ethash_mmap(ret, f)) { + ETHASH_CRITICAL("mmap failure()"); + goto fail_close_file; + } + return ret; + case ETHASH_IO_MEMO_SIZE_MISMATCH: + // if a DAG of same filename but unexpected size is found, silently force new file creation + if (ethash_io_prepare(dirname, seed_hash, &f, (size_t)full_size, true) != ETHASH_IO_MEMO_MISMATCH) { + ETHASH_CRITICAL("Could not recreate DAG file after finding existing DAG with unexpected size."); + goto fail_free_full; + } + // fallthrough to the mismatch case here, DO NOT go through match + case ETHASH_IO_MEMO_MISMATCH: + if (!ethash_mmap(ret, f)) { + ETHASH_CRITICAL("mmap failure()"); + goto fail_close_file; + } + break; + } + + if (!ethash_compute_full_data(ret->data, full_size, light, callback)) { + ETHASH_CRITICAL("Failure at computing DAG data."); + goto fail_free_full_data; + } + + // after the DAG has been filled then we finalize it by writting the magic number at the beginning + if (fseek(f, 0, SEEK_SET) != 0) { + ETHASH_CRITICAL("Could not seek to DAG file start to write magic number."); + goto fail_free_full_data; + } + uint64_t const magic_num = ETHASH_DAG_MAGIC_NUM; + if (fwrite(&magic_num, ETHASH_DAG_MAGIC_NUM_SIZE, 1, f) != 1) { + ETHASH_CRITICAL("Could not write magic number to DAG's beginning."); + goto fail_free_full_data; + } + if (fflush(f) != 0) {// make sure the magic number IS there + ETHASH_CRITICAL("Could not flush memory mapped data to DAG file. Insufficient space?"); + goto fail_free_full_data; + } + return ret; + +fail_free_full_data: + // could check that munmap(..) == 0 but even if it did not can't really do anything here + munmap(ret->data, (size_t)full_size); +fail_close_file: + fclose(ret->file); +fail_free_full: + free(ret); + return NULL; +} + +ethash_full_t ethash_full_new(ethash_light_t light, ethash_callback_t callback) +{ + char strbuf[256]; + if (!ethash_get_default_dirname(strbuf, 256)) { + return NULL; + } + uint64_t full_size = ethash_get_datasize(light->block_number); + ethash_h256_t seedhash = ethash_get_seedhash(light->block_number); + return ethash_full_new_internal(strbuf, seedhash, full_size, light, callback); +} + +void ethash_full_delete(ethash_full_t full) +{ + // could check that munmap(..) == 0 but even if it did not can't really do anything here + munmap(full->data, (size_t)full->file_size); + if (full->file) { + fclose(full->file); + } + free(full); +} + +ethash_return_value_t ethash_full_compute( + ethash_full_t full, + ethash_h256_t const header_hash, + uint64_t nonce +) +{ + ethash_return_value_t ret; + ret.success = true; + if (!ethash_hash( + &ret, + (node const*)full->data, + NULL, + full->file_size, + header_hash, + nonce)) { + ret.success = false; + } + return ret; +} + +void const* ethash_full_dag(ethash_full_t full) +{ + return full->data; +} + +uint64_t ethash_full_dag_size(ethash_full_t full) +{ + return full->file_size; +} diff --git a/vendor/github.com/ethereum/ethash/src/libethash/internal.h b/vendor/github.com/ethereum/ethash/src/libethash/internal.h new file mode 100644 index 000000000..26c395ad6 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/internal.h @@ -0,0 +1,179 @@ +#pragma once +#include "compiler.h" +#include "endian.h" +#include "ethash.h" +#include <stdio.h> + +#define ENABLE_SSE 0 + +#if defined(_M_X64) && ENABLE_SSE +#include <smmintrin.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +// compile time settings +#define NODE_WORDS (64/4) +#define MIX_WORDS (ETHASH_MIX_BYTES/4) +#define MIX_NODES (MIX_WORDS / NODE_WORDS) +#include <stdint.h> + +typedef union node { + uint8_t bytes[NODE_WORDS * 4]; + uint32_t words[NODE_WORDS]; + uint64_t double_words[NODE_WORDS / 2]; + +#if defined(_M_X64) && ENABLE_SSE + __m128i xmm[NODE_WORDS/4]; +#endif + +} node; + +static inline uint8_t ethash_h256_get(ethash_h256_t const* hash, unsigned int i) +{ + return hash->b[i]; +} + +static inline void ethash_h256_set(ethash_h256_t* hash, unsigned int i, uint8_t v) +{ + hash->b[i] = v; +} + +static inline void ethash_h256_reset(ethash_h256_t* hash) +{ + memset(hash, 0, 32); +} + +// Returns if hash is less than or equal to boundary (2^256/difficulty) +static inline bool ethash_check_difficulty( + ethash_h256_t const* hash, + ethash_h256_t const* boundary +) +{ + // Boundary is big endian + for (int i = 0; i < 32; i++) { + if (ethash_h256_get(hash, i) == ethash_h256_get(boundary, i)) { + continue; + } + return ethash_h256_get(hash, i) < ethash_h256_get(boundary, i); + } + return true; +} + +/** + * Difficulty quick check for POW preverification + * + * @param header_hash The hash of the header + * @param nonce The block's nonce + * @param mix_hash The mix digest hash + * @param boundary The boundary is defined as (2^256 / difficulty) + * @return true for succesful pre-verification and false otherwise + */ +bool ethash_quick_check_difficulty( + ethash_h256_t const* header_hash, + uint64_t const nonce, + ethash_h256_t const* mix_hash, + ethash_h256_t const* boundary +); + +struct ethash_light { + void* cache; + uint64_t cache_size; + uint64_t block_number; +}; + +/** + * Allocate and initialize a new ethash_light handler. Internal version + * + * @param cache_size The size of the cache in bytes + * @param seed Block seedhash to be used during the computation of the + * cache nodes + * @return Newly allocated ethash_light handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_cache_nodes() + */ +ethash_light_t ethash_light_new_internal(uint64_t cache_size, ethash_h256_t const* seed); + +/** + * Calculate the light client data. Internal version. + * + * @param light The light client handler + * @param full_size The size of the full data in bytes. + * @param header_hash The header hash to pack into the mix + * @param nonce The nonce to pack into the mix + * @return The resulting hash. + */ +ethash_return_value_t ethash_light_compute_internal( + ethash_light_t light, + uint64_t full_size, + ethash_h256_t const header_hash, + uint64_t nonce +); + +struct ethash_full { + FILE* file; + uint64_t file_size; + node* data; +}; + +/** + * Allocate and initialize a new ethash_full handler. Internal version. + * + * @param dirname The directory in which to put the DAG file. + * @param seedhash The seed hash of the block. Used in the DAG file naming. + * @param full_size The size of the full data in bytes. + * @param cache A cache object to use that was allocated with @ref ethash_cache_new(). + * Iff this function succeeds the ethash_full_t will take memory + * memory ownership of the cache and free it at deletion. If + * not then the user still has to handle freeing of the cache himself. + * @param callback A callback function with signature of @ref ethash_callback_t + * It accepts an unsigned with which a progress of DAG calculation + * can be displayed. If all goes well the callback should return 0. + * If a non-zero value is returned then DAG generation will stop. + * @return Newly allocated ethash_full handler or NULL in case of + * ERRNOMEM or invalid parameters used for @ref ethash_compute_full_data() + */ +ethash_full_t ethash_full_new_internal( + char const* dirname, + ethash_h256_t const seed_hash, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +); + +void ethash_calculate_dag_item( + node* const ret, + uint32_t node_index, + ethash_light_t const cache +); + +void ethash_quick_hash( + ethash_h256_t* return_hash, + ethash_h256_t const* header_hash, + const uint64_t nonce, + ethash_h256_t const* mix_hash +); + +uint64_t ethash_get_datasize(uint64_t const block_number); +uint64_t ethash_get_cachesize(uint64_t const block_number); + +/** + * Compute the memory data for a full node's memory + * + * @param mem A pointer to an ethash full's memory + * @param full_size The size of the full data in bytes + * @param cache A cache object to use in the calculation + * @param callback The callback function. Check @ref ethash_full_new() for details. + * @return true if all went fine and false for invalid parameters + */ +bool ethash_compute_full_data( + void* mem, + uint64_t full_size, + ethash_light_t const light, + ethash_callback_t callback +); + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/io.c b/vendor/github.com/ethereum/ethash/src/libethash/io.c new file mode 100644 index 000000000..f4db477c2 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/io.c @@ -0,0 +1,119 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file io.c + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ +#include "io.h" +#include <string.h> +#include <stdio.h> +#include <errno.h> + +enum ethash_io_rc ethash_io_prepare( + char const* dirname, + ethash_h256_t const seedhash, + FILE** output_file, + uint64_t file_size, + bool force_create +) +{ + char mutable_name[DAG_MUTABLE_NAME_MAX_SIZE]; + enum ethash_io_rc ret = ETHASH_IO_FAIL; + // reset errno before io calls + errno = 0; + + // assert directory exists + if (!ethash_mkdir(dirname)) { + ETHASH_CRITICAL("Could not create the ethash directory"); + goto end; + } + + ethash_io_mutable_name(ETHASH_REVISION, &seedhash, mutable_name); + char* tmpfile = ethash_io_create_filename(dirname, mutable_name, strlen(mutable_name)); + if (!tmpfile) { + ETHASH_CRITICAL("Could not create the full DAG pathname"); + goto end; + } + + FILE *f; + if (!force_create) { + // try to open the file + f = ethash_fopen(tmpfile, "rb+"); + if (f) { + size_t found_size; + if (!ethash_file_size(f, &found_size)) { + fclose(f); + ETHASH_CRITICAL("Could not query size of DAG file: \"%s\"", tmpfile); + goto free_memo; + } + if (file_size != found_size - ETHASH_DAG_MAGIC_NUM_SIZE) { + fclose(f); + ret = ETHASH_IO_MEMO_SIZE_MISMATCH; + goto free_memo; + } + // compare the magic number, no need to care about endianess since it's local + uint64_t magic_num; + if (fread(&magic_num, ETHASH_DAG_MAGIC_NUM_SIZE, 1, f) != 1) { + // I/O error + fclose(f); + ETHASH_CRITICAL("Could not read from DAG file: \"%s\"", tmpfile); + ret = ETHASH_IO_MEMO_SIZE_MISMATCH; + goto free_memo; + } + if (magic_num != ETHASH_DAG_MAGIC_NUM) { + fclose(f); + ret = ETHASH_IO_MEMO_SIZE_MISMATCH; + goto free_memo; + } + ret = ETHASH_IO_MEMO_MATCH; + goto set_file; + } + } + + // file does not exist, will need to be created + f = ethash_fopen(tmpfile, "wb+"); + if (!f) { + ETHASH_CRITICAL("Could not create DAG file: \"%s\"", tmpfile); + goto free_memo; + } + // make sure it's of the proper size + if (fseek(f, (long int)(file_size + ETHASH_DAG_MAGIC_NUM_SIZE - 1), SEEK_SET) != 0) { + fclose(f); + ETHASH_CRITICAL("Could not seek to the end of DAG file: \"%s\". Insufficient space?", tmpfile); + goto free_memo; + } + if (fputc('\n', f) == EOF) { + fclose(f); + ETHASH_CRITICAL("Could not write in the end of DAG file: \"%s\". Insufficient space?", tmpfile); + goto free_memo; + } + if (fflush(f) != 0) { + fclose(f); + ETHASH_CRITICAL("Could not flush at end of DAG file: \"%s\". Insufficient space?", tmpfile); + goto free_memo; + } + ret = ETHASH_IO_MEMO_MISMATCH; + goto set_file; + + ret = ETHASH_IO_MEMO_MATCH; +set_file: + *output_file = f; +free_memo: + free(tmpfile); +end: + return ret; +} diff --git a/vendor/github.com/ethereum/ethash/src/libethash/io.h b/vendor/github.com/ethereum/ethash/src/libethash/io.h new file mode 100644 index 000000000..7a27089c7 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/io.h @@ -0,0 +1,202 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file io.h + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ +#pragma once +#include <stdlib.h> +#include <stdint.h> +#include <stdbool.h> +#include <stdio.h> +#ifdef __cplusplus +#define __STDC_FORMAT_MACROS 1 +#endif +#include <inttypes.h> +#include "endian.h" +#include "ethash.h" + +#ifdef __cplusplus +extern "C" { +#endif +// Maximum size for mutable part of DAG file name +// 6 is for "full-R", the suffix of the filename +// 10 is for maximum number of digits of a uint32_t (for REVISION) +// 1 is for - and 16 is for the first 16 hex digits for first 8 bytes of +// the seedhash and last 1 is for the null terminating character +// Reference: https://github.com/ethereum/wiki/wiki/Ethash-DAG +#define DAG_MUTABLE_NAME_MAX_SIZE (6 + 10 + 1 + 16 + 1) +/// Possible return values of @see ethash_io_prepare +enum ethash_io_rc { + ETHASH_IO_FAIL = 0, ///< There has been an IO failure + ETHASH_IO_MEMO_SIZE_MISMATCH, ///< DAG with revision/hash match, but file size was wrong. + ETHASH_IO_MEMO_MISMATCH, ///< The DAG file did not exist or there was revision/hash mismatch + ETHASH_IO_MEMO_MATCH, ///< DAG file existed and revision/hash matched. No need to do anything +}; + +// small hack for windows. I don't feel I should use va_args and forward just +// to have this one function properly cross-platform abstracted +#if defined(_WIN32) && !defined(__GNUC__) +#define snprintf(...) sprintf_s(__VA_ARGS__) +#endif + +/** + * Logs a critical error in important parts of ethash. Should mostly help + * figure out what kind of problem (I/O, memory e.t.c.) causes a NULL + * ethash_full_t + */ +#ifdef ETHASH_PRINT_CRITICAL_OUTPUT +#define ETHASH_CRITICAL(...) \ + do \ + { \ + printf("ETHASH CRITICAL ERROR: "__VA_ARGS__); \ + printf("\n"); \ + fflush(stdout); \ + } while (0) +#else +#define ETHASH_CRITICAL(...) +#endif + +/** + * Prepares io for ethash + * + * Create the DAG directory and the DAG file if they don't exist. + * + * @param[in] dirname A null terminated c-string of the path of the ethash + * data directory. If it does not exist it's created. + * @param[in] seedhash The seedhash of the current block number, used in the + * naming of the file as can be seen from the spec at: + * https://github.com/ethereum/wiki/wiki/Ethash-DAG + * @param[out] output_file If there was no failure then this will point to an open + * file descriptor. User is responsible for closing it. + * In the case of memo match then the file is open on read + * mode, while on the case of mismatch a new file is created + * on write mode + * @param[in] file_size The size that the DAG file should have on disk + * @param[out] force_create If true then there is no check to see if the file + * already exists + * @return For possible return values @see enum ethash_io_rc + */ +enum ethash_io_rc ethash_io_prepare( + char const* dirname, + ethash_h256_t const seedhash, + FILE** output_file, + uint64_t file_size, + bool force_create +); + +/** + * An fopen wrapper for no-warnings crossplatform fopen. + * + * Msvc compiler considers fopen to be insecure and suggests to use their + * alternative. This is a wrapper for this alternative. Another way is to + * #define _CRT_SECURE_NO_WARNINGS, but disabling all security warnings does + * not sound like a good idea. + * + * @param file_name The path to the file to open + * @param mode Opening mode. Check fopen() + * @return The FILE* or NULL in failure + */ +FILE* ethash_fopen(char const* file_name, char const* mode); + +/** + * An strncat wrapper for no-warnings crossplatform strncat. + * + * Msvc compiler considers strncat to be insecure and suggests to use their + * alternative. This is a wrapper for this alternative. Another way is to + * #define _CRT_SECURE_NO_WARNINGS, but disabling all security warnings does + * not sound like a good idea. + * + * @param des Destination buffer + * @param dest_size Maximum size of the destination buffer. This is the + * extra argument for the MSVC secure strncat + * @param src Souce buffer + * @param count Number of bytes to copy from source + * @return If all is well returns the dest buffer. If there is an + * error returns NULL + */ +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count); + +/** + * A cross-platform mkdir wrapper to create a directory or assert it's there + * + * @param dirname The full path of the directory to create + * @return true if the directory was created or if it already + * existed + */ +bool ethash_mkdir(char const* dirname); + +/** + * Get a file's size + * + * @param[in] f The open file stream whose size to get + * @param[out] size Pass a size_t by reference to contain the file size + * @return true in success and false if there was a failure + */ +bool ethash_file_size(FILE* f, size_t* ret_size); + +/** + * Get a file descriptor number from a FILE stream + * + * @param f The file stream whose fd to get + * @return Platform specific fd handler + */ +int ethash_fileno(FILE* f); + +/** + * Create the filename for the DAG. + * + * @param dirname The directory name in which the DAG file should reside + * If it does not end with a directory separator it is appended. + * @param filename The actual name of the file + * @param filename_length The length of the filename in bytes + * @return A char* containing the full name. User must deallocate. + */ +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +); + +/** + * Gets the default directory name for the DAG depending on the system + * + * The spec defining this directory is here: https://github.com/ethereum/wiki/wiki/Ethash-DAG + * + * @param[out] strbuf A string buffer of sufficient size to keep the + * null termninated string of the directory name + * @param[in] buffsize Size of @a strbuf in bytes + * @return true for success and false otherwise + */ +bool ethash_get_default_dirname(char* strbuf, size_t buffsize); + +static inline bool ethash_io_mutable_name( + uint32_t revision, + ethash_h256_t const* seed_hash, + char* output +) +{ + uint64_t hash = *((uint64_t*)seed_hash); +#if LITTLE_ENDIAN == BYTE_ORDER + hash = ethash_swap_u64(hash); +#endif + return snprintf(output, DAG_MUTABLE_NAME_MAX_SIZE, "full-R%u-%016" PRIx64, revision, hash) >= 0; +} + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/io_posix.c b/vendor/github.com/ethereum/ethash/src/libethash/io_posix.c new file mode 100644 index 000000000..c9a17d845 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/io_posix.c @@ -0,0 +1,111 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file io_posix.c + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ + +#include "io.h" +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <libgen.h> +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <pwd.h> + +FILE* ethash_fopen(char const* file_name, char const* mode) +{ + return fopen(file_name, mode); +} + +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count) +{ + return strlen(dest) + count + 1 <= dest_size ? strncat(dest, src, count) : NULL; +} + +bool ethash_mkdir(char const* dirname) +{ + int rc = mkdir(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); + return rc != -1 || errno == EEXIST; +} + +int ethash_fileno(FILE *f) +{ + return fileno(f); +} + +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +) +{ + size_t dirlen = strlen(dirname); + size_t dest_size = dirlen + filename_length + 1; + if (dirname[dirlen] != '/') { + dest_size += 1; + } + char* name = malloc(dest_size); + if (!name) { + return NULL; + } + + name[0] = '\0'; + ethash_strncat(name, dest_size, dirname, dirlen); + if (dirname[dirlen] != '/') { + ethash_strncat(name, dest_size, "/", 1); + } + ethash_strncat(name, dest_size, filename, filename_length); + return name; +} + +bool ethash_file_size(FILE* f, size_t* ret_size) +{ + struct stat st; + int fd; + if ((fd = fileno(f)) == -1 || fstat(fd, &st) != 0) { + return false; + } + *ret_size = st.st_size; + return true; +} + +bool ethash_get_default_dirname(char* strbuf, size_t buffsize) +{ + static const char dir_suffix[] = ".ethash/"; + strbuf[0] = '\0'; + char* home_dir = getenv("HOME"); + if (!home_dir || strlen(home_dir) == 0) + { + struct passwd* pwd = getpwuid(getuid()); + if (pwd) + home_dir = pwd->pw_dir; + } + + size_t len = strlen(home_dir); + if (!ethash_strncat(strbuf, buffsize, home_dir, len)) { + return false; + } + if (home_dir[len] != '/') { + if (!ethash_strncat(strbuf, buffsize, "/", 1)) { + return false; + } + } + return ethash_strncat(strbuf, buffsize, dir_suffix, sizeof(dir_suffix)); +} diff --git a/vendor/github.com/ethereum/ethash/src/libethash/io_win32.c b/vendor/github.com/ethereum/ethash/src/libethash/io_win32.c new file mode 100644 index 000000000..34f1aaa77 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/io_win32.c @@ -0,0 +1,100 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file io_win32.c + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ + +#include "io.h" +#include <direct.h> +#include <errno.h> +#include <stdio.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <shlobj.h> + +FILE* ethash_fopen(char const* file_name, char const* mode) +{ + FILE* f; + return fopen_s(&f, file_name, mode) == 0 ? f : NULL; +} + +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count) +{ + return strncat_s(dest, dest_size, src, count) == 0 ? dest : NULL; +} + +bool ethash_mkdir(char const* dirname) +{ + int rc = _mkdir(dirname); + return rc != -1 || errno == EEXIST; +} + +int ethash_fileno(FILE* f) +{ + return _fileno(f); +} + +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +) +{ + size_t dirlen = strlen(dirname); + size_t dest_size = dirlen + filename_length + 1; + if (dirname[dirlen] != '\\' || dirname[dirlen] != '/') { + dest_size += 1; + } + char* name = malloc(dest_size); + if (!name) { + return NULL; + } + + name[0] = '\0'; + ethash_strncat(name, dest_size, dirname, dirlen); + if (dirname[dirlen] != '\\' || dirname[dirlen] != '/') { + ethash_strncat(name, dest_size, "\\", 1); + } + ethash_strncat(name, dest_size, filename, filename_length); + return name; +} + +bool ethash_file_size(FILE* f, size_t* ret_size) +{ + struct _stat st; + int fd; + if ((fd = _fileno(f)) == -1 || _fstat(fd, &st) != 0) { + return false; + } + *ret_size = st.st_size; + return true; +} + +bool ethash_get_default_dirname(char* strbuf, size_t buffsize) +{ + static const char dir_suffix[] = "Ethash\\"; + strbuf[0] = '\0'; + if (!SUCCEEDED(SHGetFolderPathA(NULL, CSIDL_LOCAL_APPDATA, NULL, 0, (CHAR*)strbuf))) { + return false; + } + if (!ethash_strncat(strbuf, buffsize, "\\", 1)) { + return false; + } + + return ethash_strncat(strbuf, buffsize, dir_suffix, sizeof(dir_suffix)); +} diff --git a/vendor/github.com/ethereum/ethash/src/libethash/mmap.h b/vendor/github.com/ethereum/ethash/src/libethash/mmap.h new file mode 100644 index 000000000..1e226e83f --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/mmap.h @@ -0,0 +1,47 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file mmap.h + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ +#pragma once +#if defined(__MINGW32__) || defined(_WIN32) +#include <sys/types.h> + +#define PROT_READ 0x1 +#define PROT_WRITE 0x2 +/* This flag is only available in WinXP+ */ +#ifdef FILE_MAP_EXECUTE +#define PROT_EXEC 0x4 +#else +#define PROT_EXEC 0x0 +#define FILE_MAP_EXECUTE 0 +#endif + +#define MAP_SHARED 0x01 +#define MAP_PRIVATE 0x02 +#define MAP_ANONYMOUS 0x20 +#define MAP_ANON MAP_ANONYMOUS +#define MAP_FAILED ((void *) -1) + +void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t offset); +void munmap(void* addr, size_t length); +#else // posix, yay! ^_^ +#include <sys/mman.h> +#endif + + diff --git a/vendor/github.com/ethereum/ethash/src/libethash/mmap_win32.c b/vendor/github.com/ethereum/ethash/src/libethash/mmap_win32.c new file mode 100644 index 000000000..42968b98a --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/mmap_win32.c @@ -0,0 +1,84 @@ +/* mmap() replacement for Windows + * + * Author: Mike Frysinger <vapier@gentoo.org> + * Placed into the public domain + */ + +/* References: + * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx + * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx + * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx + * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx + */ + +#include <io.h> +#include <windows.h> +#include "mmap.h" + +#ifdef __USE_FILE_OFFSET64 +# define DWORD_HI(x) (x >> 32) +# define DWORD_LO(x) ((x) & 0xffffffff) +#else +# define DWORD_HI(x) (0) +# define DWORD_LO(x) (x) +#endif + +void* mmap(void* start, size_t length, int prot, int flags, int fd, off_t offset) +{ + if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) + return MAP_FAILED; + if (fd == -1) { + if (!(flags & MAP_ANON) || offset) + return MAP_FAILED; + } else if (flags & MAP_ANON) + return MAP_FAILED; + + DWORD flProtect; + if (prot & PROT_WRITE) { + if (prot & PROT_EXEC) + flProtect = PAGE_EXECUTE_READWRITE; + else + flProtect = PAGE_READWRITE; + } else if (prot & PROT_EXEC) { + if (prot & PROT_READ) + flProtect = PAGE_EXECUTE_READ; + else if (prot & PROT_EXEC) + flProtect = PAGE_EXECUTE; + } else + flProtect = PAGE_READONLY; + + off_t end = length + offset; + HANDLE mmap_fd, h; + if (fd == -1) + mmap_fd = INVALID_HANDLE_VALUE; + else + mmap_fd = (HANDLE)_get_osfhandle(fd); + h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL); + if (h == NULL) + return MAP_FAILED; + + DWORD dwDesiredAccess; + if (prot & PROT_WRITE) + dwDesiredAccess = FILE_MAP_WRITE; + else + dwDesiredAccess = FILE_MAP_READ; + if (prot & PROT_EXEC) + dwDesiredAccess |= FILE_MAP_EXECUTE; + if (flags & MAP_PRIVATE) + dwDesiredAccess |= FILE_MAP_COPY; + void *ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length); + if (ret == NULL) { + ret = MAP_FAILED; + } + // since we are handling the file ourselves with fd, close the Windows Handle here + CloseHandle(h); + return ret; +} + +void munmap(void* addr, size_t length) +{ + UnmapViewOfFile(addr); +} + +#undef DWORD_HI +#undef DWORD_LO diff --git a/vendor/github.com/ethereum/ethash/src/libethash/sha3.c b/vendor/github.com/ethereum/ethash/src/libethash/sha3.c new file mode 100644 index 000000000..e72fe1018 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/sha3.c @@ -0,0 +1,151 @@ +/** libkeccak-tiny +* +* A single-file implementation of SHA-3 and SHAKE. +* +* Implementor: David Leon Gil +* License: CC0, attribution kindly requested. Blame taken too, +* but not liability. +*/ +#include "sha3.h" + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +/******** The Keccak-f[1600] permutation ********/ + +/*** Constants. ***/ +static const uint8_t rho[24] = \ + { 1, 3, 6, 10, 15, 21, + 28, 36, 45, 55, 2, 14, + 27, 41, 56, 8, 25, 43, + 62, 18, 39, 61, 20, 44}; +static const uint8_t pi[24] = \ + {10, 7, 11, 17, 18, 3, + 5, 16, 8, 21, 24, 4, + 15, 23, 19, 13, 12, 2, + 20, 14, 22, 9, 6, 1}; +static const uint64_t RC[24] = \ + {1ULL, 0x8082ULL, 0x800000000000808aULL, 0x8000000080008000ULL, + 0x808bULL, 0x80000001ULL, 0x8000000080008081ULL, 0x8000000000008009ULL, + 0x8aULL, 0x88ULL, 0x80008009ULL, 0x8000000aULL, + 0x8000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL, 0x8000000000008003ULL, + 0x8000000000008002ULL, 0x8000000000000080ULL, 0x800aULL, 0x800000008000000aULL, + 0x8000000080008081ULL, 0x8000000000008080ULL, 0x80000001ULL, 0x8000000080008008ULL}; + +/*** Helper macros to unroll the permutation. ***/ +#define rol(x, s) (((x) << s) | ((x) >> (64 - s))) +#define REPEAT6(e) e e e e e e +#define REPEAT24(e) REPEAT6(e e e e) +#define REPEAT5(e) e e e e e +#define FOR5(v, s, e) \ + v = 0; \ + REPEAT5(e; v += s;) + +/*** Keccak-f[1600] ***/ +static inline void keccakf(void* state) { + uint64_t* a = (uint64_t*)state; + uint64_t b[5] = {0}; + uint64_t t = 0; + uint8_t x, y; + + for (int i = 0; i < 24; i++) { + // Theta + FOR5(x, 1, + b[x] = 0; + FOR5(y, 5, + b[x] ^= a[x + y]; )) + FOR5(x, 1, + FOR5(y, 5, + a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); )) + // Rho and pi + t = a[1]; + x = 0; + REPEAT24(b[0] = a[pi[x]]; + a[pi[x]] = rol(t, rho[x]); + t = b[0]; + x++; ) + // Chi + FOR5(y, + 5, + FOR5(x, 1, + b[x] = a[y + x];) + FOR5(x, 1, + a[y + x] = b[x] ^ ((~b[(x + 1) % 5]) & b[(x + 2) % 5]); )) + // Iota + a[0] ^= RC[i]; + } +} + +/******** The FIPS202-defined functions. ********/ + +/*** Some helper macros. ***/ + +#define _(S) do { S } while (0) +#define FOR(i, ST, L, S) \ + _(for (size_t i = 0; i < L; i += ST) { S; }) +#define mkapply_ds(NAME, S) \ + static inline void NAME(uint8_t* dst, \ + const uint8_t* src, \ + size_t len) { \ + FOR(i, 1, len, S); \ + } +#define mkapply_sd(NAME, S) \ + static inline void NAME(const uint8_t* src, \ + uint8_t* dst, \ + size_t len) { \ + FOR(i, 1, len, S); \ + } + +mkapply_ds(xorin, dst[i] ^= src[i]) // xorin +mkapply_sd(setout, dst[i] = src[i]) // setout + +#define P keccakf +#define Plen 200 + +// Fold P*F over the full blocks of an input. +#define foldP(I, L, F) \ + while (L >= rate) { \ + F(a, I, rate); \ + P(a); \ + I += rate; \ + L -= rate; \ + } + +/** The sponge-based hash construction. **/ +static inline int hash(uint8_t* out, size_t outlen, + const uint8_t* in, size_t inlen, + size_t rate, uint8_t delim) { + if ((out == NULL) || ((in == NULL) && inlen != 0) || (rate >= Plen)) { + return -1; + } + uint8_t a[Plen] = {0}; + // Absorb input. + foldP(in, inlen, xorin); + // Xor in the DS and pad frame. + a[inlen] ^= delim; + a[rate - 1] ^= 0x80; + // Xor in the last block. + xorin(a, in, inlen); + // Apply P + P(a); + // Squeeze output. + foldP(out, outlen, setout); + setout(a, out, outlen); + memset(a, 0, 200); + return 0; +} + +#define defsha3(bits) \ + int sha3_##bits(uint8_t* out, size_t outlen, \ + const uint8_t* in, size_t inlen) { \ + if (outlen > (bits/8)) { \ + return -1; \ + } \ + return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x01); \ + } + +/*** FIPS202 SHA3 FOFs ***/ +defsha3(256) +defsha3(512) diff --git a/vendor/github.com/ethereum/ethash/src/libethash/sha3.h b/vendor/github.com/ethereum/ethash/src/libethash/sha3.h new file mode 100644 index 000000000..a38006292 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/sha3.h @@ -0,0 +1,31 @@ +#pragma once + +#ifdef __cplusplus +extern "C" { +#endif + +#include "compiler.h" +#include <stdint.h> +#include <stdlib.h> + +struct ethash_h256; + +#define decsha3(bits) \ + int sha3_##bits(uint8_t*, size_t, uint8_t const*, size_t); + +decsha3(256) +decsha3(512) + +static inline void SHA3_256(struct ethash_h256 const* ret, uint8_t const* data, size_t const size) +{ + sha3_256((uint8_t*)ret, 32, data, size); +} + +static inline void SHA3_512(uint8_t* ret, uint8_t const* data, size_t const size) +{ + sha3_512(ret, 64, data, size); +} + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp b/vendor/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp new file mode 100644 index 000000000..2a7c02664 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.cpp @@ -0,0 +1,37 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ + +/** @file sha3.cpp +* @author Tim Hughes <tim@twistedfury.com> +* @date 2015 +*/ +#include <stdint.h> +#include <cryptopp/sha3.h> + +extern "C" { +struct ethash_h256; +typedef struct ethash_h256 ethash_h256_t; +void SHA3_256(ethash_h256_t const* ret, uint8_t const* data, size_t size) +{ + CryptoPP::SHA3_256().CalculateDigest((uint8_t*)ret, data, size); +} + +void SHA3_512(uint8_t* const ret, uint8_t const* data, size_t size) +{ + CryptoPP::SHA3_512().CalculateDigest(ret, data, size); +} +} diff --git a/vendor/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h b/vendor/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h new file mode 100644 index 000000000..9edc407d5 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/sha3_cryptopp.h @@ -0,0 +1,18 @@ +#pragma once + +#include "compiler.h" +#include <stdint.h> +#include <stdlib.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct ethash_h256; + +void SHA3_256(struct ethash_h256 const* ret, uint8_t const* data, size_t size); +void SHA3_512(uint8_t* const ret, uint8_t const* data, size_t size); + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/util.h b/vendor/github.com/ethereum/ethash/src/libethash/util.h new file mode 100644 index 000000000..c5fc6e55b --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/util.h @@ -0,0 +1,47 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file util.h + * @author Tim Hughes <tim@twistedfury.com> + * @date 2015 + */ +#pragma once +#include <stdint.h> +#include "compiler.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef _MSC_VER +void debugf(char const* str, ...); +#else +#define debugf printf +#endif + +static inline uint32_t min_u32(uint32_t a, uint32_t b) +{ + return a < b ? a : b; +} + +static inline uint32_t clamp_u32(uint32_t x, uint32_t min_, uint32_t max_) +{ + return x < min_ ? min_ : (x > max_ ? max_ : x); +} + +#ifdef __cplusplus +} +#endif diff --git a/vendor/github.com/ethereum/ethash/src/libethash/util_win32.c b/vendor/github.com/ethereum/ethash/src/libethash/util_win32.c new file mode 100644 index 000000000..268e6db05 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/util_win32.c @@ -0,0 +1,38 @@ +/* + This file is part of cpp-ethereum. + + cpp-ethereum is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + cpp-ethereum 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file util.c + * @author Tim Hughes <tim@twistedfury.com> + * @date 2015 + */ +#include <stdarg.h> +#include <stdio.h> +#include "util.h" + + +// foward declare without all of Windows.h +__declspec(dllimport) void __stdcall OutputDebugStringA(char const* lpOutputString); + +void debugf(char const* str, ...) +{ + va_list args; + va_start(args, str); + + char buf[1<<16]; + _vsnprintf_s(buf, sizeof(buf), sizeof(buf), str, args); + buf[sizeof(buf)-1] = '\0'; + OutputDebugStringA(buf); +} |