mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-23 10:52:13 +00:00
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
|
|
namespace ams::crypto {
|
|
|
|
namespace {
|
|
|
|
constinit bool g_initialized = false;
|
|
constinit os::SdkMutex g_lock;
|
|
|
|
void InitializeCsrng() {
|
|
AMS_ASSERT(!g_initialized);
|
|
R_ABORT_UNLESS(sm::Initialize());
|
|
R_ABORT_UNLESS(::csrngInitialize());
|
|
}
|
|
|
|
}
|
|
|
|
void GenerateCryptographicallyRandomBytes(void *dst, size_t dst_size) {
|
|
if (AMS_UNLIKELY(!g_initialized)) {
|
|
std::scoped_lock lk(g_lock);
|
|
|
|
if (AMS_LIKELY(!g_initialized)) {
|
|
InitializeCsrng();
|
|
g_initialized = true;
|
|
}
|
|
}
|
|
|
|
R_ABORT_UNLESS(::csrngGetRandomBytes(dst, dst_size));
|
|
}
|
|
|
|
}
|