mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-19 02:15:33 +00:00
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 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 <exosphere.hpp>
|
|
#include "se_execute.hpp"
|
|
|
|
namespace ams::se {
|
|
|
|
namespace {
|
|
|
|
bool TestRegister(volatile u32 &r, u16 v) {
|
|
return (static_cast<u16>(reg::Read(r))) == v;
|
|
}
|
|
|
|
}
|
|
|
|
bool ValidateStickyBits(const StickyBits &bits) {
|
|
/* Get the registers. */
|
|
auto *SE = GetRegisters();
|
|
|
|
/* Check SE_SECURITY. */
|
|
if (!TestRegister(SE->SE_SE_SECURITY, bits.se_security)) { return false; }
|
|
|
|
/* Check TZRAM_SECURITY. */
|
|
if (!TestRegister(SE->SE_TZRAM_SECURITY, bits.tzram_security)) { return false; }
|
|
|
|
/* Check CRYPTO_SECURITY_PERKEY. */
|
|
if (!TestRegister(SE->SE_CRYPTO_SECURITY_PERKEY, bits.crypto_security_perkey)) { return false; }
|
|
|
|
/* Check CRYPTO_KEYTABLE_ACCESS. */
|
|
for (int i = 0; i < AesKeySlotCount; ++i) {
|
|
if (!TestRegister(SE->SE_CRYPTO_KEYTABLE_ACCESS[i], bits.crypto_keytable_access[i])) { return false; }
|
|
}
|
|
|
|
/* Test RSA_SECURITY_PERKEY */
|
|
if (!TestRegister(SE->SE_RSA_SECURITY_PERKEY, bits.rsa_security_perkey)) { return false; }
|
|
|
|
/* Check RSA_KEYTABLE_ACCESS. */
|
|
for (int i = 0; i < RsaKeySlotCount; ++i) {
|
|
if (!TestRegister(SE->SE_RSA_KEYTABLE_ACCESS[i], bits.rsa_keytable_access[i])) { return false; }
|
|
}
|
|
|
|
/* All sticky bits are valid. */
|
|
return true;
|
|
}
|
|
|
|
}
|