diff options
Diffstat (limited to 'vendor/github.com/ethereum/ethash/src')
20 files changed, 2828 insertions, 0 deletions
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, 1627386752U, 1635773824U, 1644164224U, 1652555648U, + 1660943488U, 1669332608U, 1677721216U, 1686109312U, 1694497664U, + 1702886272U, 1711274624U, 1719661184U, 1728047744U, 1736434816U, + 1744829056U, 1753218944U, 1761606272U, 1769995904U, 1778382464U, + 1786772864U, 1795157888U, 1803550592U, 1811937664U, 1820327552U, + 1828711552U, 1837102976U, 1845488768U, 1853879936U, 1862269312U, + 1870656896U, 1879048064U, 1887431552U, 1895825024U, 1904212096U, + 1912601216U, 1920988544U, 1929379456U, 1937765504U, 1946156672U, + 1954543232U, 1962932096U, 1971321728U, 1979707264U, 1988093056U, + 1996487552U, 2004874624U, 2013262208U, 2021653888U, 2030039936U, + 2038430848U, 2046819968U, 2055208576U, 2063596672U, 2071981952U, + 2080373632U, 2088762752U, 2097149056U, 2105539712U, 2113928576U, + 2122315136U, 2130700672U, 2139092608U, 2147483264U, 2155872128U, + 2164257664U, 2172642176U, 2181035392U, 2189426048U, 2197814912U, + 2206203008U, 2214587264U, 2222979712U, 2231367808U, 2239758208U, + 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17825785984U, 17834178944U, 17842563968U, + 17850955648U, 17859344512U, 17867732864U, 17876119424U, 17884511872U, + 17892900224U, 17901287296U, 17909677696U, 17918058112U, 17926451072U, + 17934843776U, 17943230848U, 17951609216U, 17960008576U, 17968397696U, + 17976784256U, 17985175424U, 17993564032U, 18001952128U, 18010339712U, + 18018728576U, 18027116672U, 18035503232U, 18043894144U, 18052283264U, + 18060672128U, 18069056384U, 18077449856U, 18085837184U, 18094225792U, + 18102613376U, 18111004544U, 18119388544U, 18127781248U, 18136170368U, + 18144558976U, 18152947328U, 18161336192U, 18169724288U, 18178108544U, + 18186498944U, 18194886784U, 18203275648U, 18211666048U, 18220048768U, + 18228444544U, 18236833408U, 18245220736U +}; + + +// Generated with the following Mathematica Code: + +// GetCacheSizes[n_] := Module[{ +// DataSetSizeBytesInit = 2^30, +// MixBytes = 128, +// DataSetGrowth = 2^23, +// HashBytes = 64, +// CacheMultiplier = 1024, +// j = 0}, +// Reap[ +// While[j < n, +// 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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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); +} |