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/*
* This program 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
* any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining
* it with OpenSSL (or a modified version of that library), containing parts
* covered by the terms of OpenSSL License and SSLeay License, the licensors
* of this Program grant you additional permission to convey the resulting work.
*
*/
extern "C"
{
#include "c_groestl.h"
#include "c_blake256.h"
#include "c_jh.h"
#include "c_skein.h"
}
#include "cryptonight.h"
#include "cryptonight_aesni.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef __GNUC__
#include <mm_malloc.h>
#else
#include <malloc.h>
#endif // __GNUC__
#if defined(__APPLE__)
#include <mach/vm_statistics.h>
#endif
#ifdef _WIN32
#include <windows.h>
#else
#include <sys/mman.h>
#include <errno.h>
#include <string.h>
#endif // _WIN32
void do_blake_hash(const void* input, size_t len, char* output) {
blake256_hash((uint8_t*)output, (const uint8_t*)input, len);
}
void do_groestl_hash(const void* input, size_t len, char* output) {
groestl((const uint8_t*)input, len * 8, (uint8_t*)output);
}
void do_jh_hash(const void* input, size_t len, char* output) {
jh_hash(32 * 8, (const uint8_t*)input, 8 * len, (uint8_t*)output);
}
void do_skein_hash(const void* input, size_t len, char* output) {
skein_hash(8 * 32, (const uint8_t*)input, 8 * len, (uint8_t*)output);
}
void (* const extra_hashes[4])(const void *, size_t, char *) = {do_blake_hash, do_groestl_hash, do_jh_hash, do_skein_hash};
#ifdef _WIN32
BOOL AddPrivilege(TCHAR* pszPrivilege)
{
HANDLE hToken;
TOKEN_PRIVILEGES tp;
BOOL status;
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
return FALSE;
if (!LookupPrivilegeValue(NULL, pszPrivilege, &tp.Privileges[0].Luid))
return FALSE;
tp.PrivilegeCount = 1;
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
status = AdjustTokenPrivileges(hToken, FALSE, &tp, 0, (PTOKEN_PRIVILEGES)NULL, 0);
if (!status || (GetLastError() != ERROR_SUCCESS))
return FALSE;
CloseHandle(hToken);
return TRUE;
}
#endif
size_t cryptonight_init(size_t use_fast_mem, size_t use_mlock, alloc_msg* msg)
{
#ifdef _WIN32
if (AddPrivilege(TEXT("SeLockMemoryPrivilege")) == 0)
{
msg->warning = "Obtaning SeLockMemoryPrivilege failed.";
return 0;
}
return 1;
#else
return 1;
#endif // _WIN32
}
cryptonight_ctx* cryptonight_alloc_ctx(size_t use_fast_mem, size_t use_mlock, alloc_msg* msg)
{
cryptonight_ctx* ptr = (cryptonight_ctx*)_mm_malloc(sizeof(cryptonight_ctx), 4096);
if(use_fast_mem == 0)
{
// use 2MiB aligned memory
ptr->long_state = (uint8_t*)_mm_malloc(MEMORY, 2*1024*1024);
ptr->ctx_info[0] = 0;
ptr->ctx_info[1] = 0;
return ptr;
}
#ifdef _WIN32
SIZE_T iLargePageMin = GetLargePageMinimum();
if(MEMORY > iLargePageMin)
iLargePageMin *= 2;
ptr->long_state = (uint8_t*)VirtualAlloc(NULL, iLargePageMin,
MEM_COMMIT | MEM_RESERVE | MEM_LARGE_PAGES, PAGE_READWRITE);
if(ptr->long_state == NULL)
{
_mm_free(ptr);
msg->warning = "VirtualAlloc failed.";
return NULL;
}
else
{
ptr->ctx_info[0] = 1;
return ptr;
}
#else
#if defined(__APPLE__)
ptr->long_state = (uint8_t*)mmap(0, MEMORY, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, VM_FLAGS_SUPERPAGE_SIZE_2MB, 0);
#elif defined(__FreeBSD__)
ptr->long_state = (uint8_t*)mmap(0, MEMORY, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER | MAP_PREFAULT_READ, -1, 0);
#else
ptr->long_state = (uint8_t*)mmap(0, MEMORY, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0);
#endif
if (ptr->long_state == MAP_FAILED)
{
_mm_free(ptr);
msg->warning = "mmap failed";
return NULL;
}
ptr->ctx_info[0] = 1;
if(madvise(ptr->long_state, MEMORY, MADV_RANDOM|MADV_WILLNEED) != 0)
msg->warning = "madvise failed";
ptr->ctx_info[1] = 0;
if(use_mlock != 0 && mlock(ptr->long_state, MEMORY) != 0)
msg->warning = "mlock failed";
else
ptr->ctx_info[1] = 1;
return ptr;
#endif // _WIN32
}
void cryptonight_free_ctx(cryptonight_ctx* ctx)
{
if(ctx->ctx_info[0] != 0)
{
#ifdef _WIN32
VirtualFree(ctx->long_state, 0, MEM_RELEASE);
#else
if(ctx->ctx_info[1] != 0)
munlock(ctx->long_state, MEMORY);
munmap(ctx->long_state, MEMORY);
#endif // _WIN32
}
else
_mm_free(ctx->long_state);
_mm_free(ctx);
}
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