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Fix: possible overflow when using non-standard Dataset size (#87)

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tevador 2019-06-29 18:52:22 +02:00 committed by GitHub
parent b91882be42
commit c6b5ec12b6
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1 changed files with 2 additions and 1 deletions
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src/common.hpp
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@ -43,6 +43,7 @@ namespace randomx {
static_assert((RANDOMX_DATASET_BASE_SIZE & (RANDOMX_DATASET_BASE_SIZE - 1)) == 0, "RANDOMX_DATASET_BASE_SIZE must be a power of 2."); static_assert((RANDOMX_DATASET_BASE_SIZE & (RANDOMX_DATASET_BASE_SIZE - 1)) == 0, "RANDOMX_DATASET_BASE_SIZE must be a power of 2.");
static_assert(RANDOMX_DATASET_BASE_SIZE <= 4294967296ULL, "RANDOMX_DATASET_BASE_SIZE must not exceed 4294967296."); static_assert(RANDOMX_DATASET_BASE_SIZE <= 4294967296ULL, "RANDOMX_DATASET_BASE_SIZE must not exceed 4294967296.");
static_assert(RANDOMX_DATASET_EXTRA_SIZE % 64 == 0, "RANDOMX_DATASET_EXTRA_SIZE must be divisible by 64."); static_assert(RANDOMX_DATASET_EXTRA_SIZE % 64 == 0, "RANDOMX_DATASET_EXTRA_SIZE must be divisible by 64.");
static_assert((uint64_t)RANDOMX_DATASET_BASE_SIZE + RANDOMX_DATASET_EXTRA_SIZE <= 17179869184, "Dataset size must not exceed 16 GiB.");
static_assert(RANDOMX_PROGRAM_SIZE > 0, "RANDOMX_PROGRAM_SIZE must be greater than 0"); static_assert(RANDOMX_PROGRAM_SIZE > 0, "RANDOMX_PROGRAM_SIZE must be greater than 0");
static_assert(RANDOMX_PROGRAM_ITERATIONS > 0, "RANDOMX_PROGRAM_ITERATIONS must be greater than 0"); static_assert(RANDOMX_PROGRAM_ITERATIONS > 0, "RANDOMX_PROGRAM_ITERATIONS must be greater than 0");
static_assert(RANDOMX_PROGRAM_COUNT > 0, "RANDOMX_PROGRAM_COUNT must be greater than 0"); static_assert(RANDOMX_PROGRAM_COUNT > 0, "RANDOMX_PROGRAM_COUNT must be greater than 0");
@ -72,7 +73,7 @@ namespace randomx {
constexpr uint32_t ArgonBlockSize = 1024; constexpr uint32_t ArgonBlockSize = 1024;
constexpr int ArgonSaltSize = sizeof("" RANDOMX_ARGON_SALT) - 1; constexpr int ArgonSaltSize = sizeof("" RANDOMX_ARGON_SALT) - 1;
constexpr int SuperscalarMaxSize = 3 * RANDOMX_SUPERSCALAR_LATENCY + 2; constexpr int SuperscalarMaxSize = 3 * RANDOMX_SUPERSCALAR_LATENCY + 2;
constexpr int CacheLineSize = RANDOMX_DATASET_ITEM_SIZE; constexpr size_t CacheLineSize = RANDOMX_DATASET_ITEM_SIZE;
constexpr int ScratchpadSize = RANDOMX_SCRATCHPAD_L3; constexpr int ScratchpadSize = RANDOMX_SCRATCHPAD_L3;
constexpr uint32_t CacheLineAlignMask = (RANDOMX_DATASET_BASE_SIZE - 1) & ~(CacheLineSize - 1); constexpr uint32_t CacheLineAlignMask = (RANDOMX_DATASET_BASE_SIZE - 1) & ~(CacheLineSize - 1);
constexpr uint32_t CacheSize = RANDOMX_ARGON_MEMORY * ArgonBlockSize; constexpr uint32_t CacheSize = RANDOMX_ARGON_MEMORY * ArgonBlockSize;