Atmosphere/exosphere2/program/source/boot/secmon_boot_functions.cpp
2020-06-14 22:07:45 -07:00

219 lines
12 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 "../secmon_error.hpp"
#include "secmon_boot.hpp"
#include "secmon_boot_cache.hpp"
#include "secmon_boot_functions.hpp"
namespace ams::secmon::boot {
namespace {
constexpr inline uintptr_t SYSCTR0 = MemoryRegionVirtualDeviceSysCtr0.GetAddress();
constinit const u8 BootConfigRsaPublicModulus[se::RsaSize] = {
0xB5, 0x96, 0x87, 0x31, 0x39, 0xAA, 0xBB, 0x3C, 0x28, 0xF3, 0xF0, 0x65, 0xF1, 0x50, 0x70, 0x64,
0xE6, 0x6C, 0x97, 0x50, 0xCD, 0xA6, 0xEE, 0xEA, 0xC3, 0x8F, 0xE6, 0xB5, 0x81, 0x54, 0x65, 0x33,
0x1B, 0x88, 0x4B, 0xCE, 0x9F, 0x53, 0xDF, 0xE4, 0xF6, 0xAD, 0xC3, 0x78, 0xD7, 0x3C, 0xD1, 0xDB,
0x27, 0x21, 0xA0, 0x24, 0x30, 0x2D, 0x98, 0x41, 0xA8, 0xDF, 0x50, 0x7D, 0xAB, 0xCE, 0x00, 0xD9,
0xCB, 0xAC, 0x8F, 0x37, 0xF5, 0x53, 0xE4, 0x97, 0x1F, 0x13, 0x3C, 0x19, 0xFF, 0x05, 0xA7, 0x3B,
0xF6, 0xF4, 0x01, 0xDE, 0xF0, 0xC3, 0x77, 0x7B, 0x83, 0xBA, 0xAF, 0x99, 0x30, 0x94, 0x87, 0x25,
0x4E, 0x54, 0x42, 0x3F, 0xAC, 0x27, 0xF9, 0xCC, 0x87, 0xDD, 0xAE, 0xF2, 0x54, 0xF3, 0x97, 0x49,
0xF4, 0xB0, 0xF8, 0x6D, 0xDA, 0x60, 0xE0, 0xFD, 0x57, 0xAE, 0x55, 0xA9, 0x76, 0xEA, 0x80, 0x24,
0xA0, 0x04, 0x7D, 0xBE, 0xD1, 0x81, 0xD3, 0x0C, 0x95, 0xCF, 0xB7, 0xE0, 0x2D, 0x21, 0x21, 0xFF,
0x97, 0x1E, 0xB3, 0xD7, 0x9F, 0xBB, 0x33, 0x0C, 0x23, 0xC5, 0x88, 0x4A, 0x33, 0xB9, 0xC9, 0x4E,
0x1E, 0x65, 0x51, 0x45, 0xDE, 0xF9, 0x64, 0x7C, 0xF0, 0xBF, 0x11, 0xB4, 0x93, 0x8D, 0x5D, 0xC6,
0xAB, 0x37, 0x9E, 0xE9, 0x39, 0xC1, 0xC8, 0xDB, 0xB9, 0xFE, 0x45, 0xCE, 0x7B, 0xDD, 0x72, 0xD9,
0x6F, 0x68, 0x13, 0xC0, 0x4B, 0xBA, 0x00, 0xF4, 0x1E, 0x89, 0x71, 0x91, 0x26, 0xA6, 0x46, 0x12,
0xDF, 0x29, 0x6B, 0xC2, 0x5A, 0x53, 0xAF, 0xB9, 0x5B, 0xFD, 0x13, 0x9F, 0xD1, 0x8A, 0x7C, 0xB5,
0x04, 0xFD, 0x69, 0xEA, 0x23, 0xB4, 0x6D, 0x16, 0x21, 0x98, 0x54, 0xB4, 0xDF, 0xE6, 0xAB, 0x93,
0x36, 0xB6, 0xD2, 0x43, 0xCF, 0x2B, 0x98, 0x1D, 0x45, 0xC9, 0xBB, 0x20, 0x42, 0xB1, 0x9D, 0x1D
};
constinit const u8 Package2RsaPublicModulusProduction[se::RsaSize] = {
0x8D, 0x13, 0xA7, 0x77, 0x6A, 0xE5, 0xDC, 0xC0, 0x3B, 0x25, 0xD0, 0x58, 0xE4, 0x20, 0x69, 0x59,
0x55, 0x4B, 0xAB, 0x70, 0x40, 0x08, 0x28, 0x07, 0xA8, 0xA7, 0xFD, 0x0F, 0x31, 0x2E, 0x11, 0xFE,
0x47, 0xA0, 0xF9, 0x9D, 0xDF, 0x80, 0xDB, 0x86, 0x5A, 0x27, 0x89, 0xCD, 0x97, 0x6C, 0x85, 0xC5,
0x6C, 0x39, 0x7F, 0x41, 0xF2, 0xFF, 0x24, 0x20, 0xC3, 0x95, 0xA6, 0xF7, 0x9D, 0x4A, 0x45, 0x74,
0x8B, 0x5D, 0x28, 0x8A, 0xC6, 0x99, 0x35, 0x68, 0x85, 0xA5, 0x64, 0x32, 0x80, 0x9F, 0xD3, 0x48,
0x39, 0xA2, 0x1D, 0x24, 0x67, 0x69, 0xDF, 0x75, 0xAC, 0x12, 0xB5, 0xBD, 0xC3, 0x29, 0x90, 0xBE,
0x37, 0xE4, 0xA0, 0x80, 0x9A, 0xBE, 0x36, 0xBF, 0x1F, 0x2C, 0xAB, 0x2B, 0xAD, 0xF5, 0x97, 0x32,
0x9A, 0x42, 0x9D, 0x09, 0x8B, 0x08, 0xF0, 0x63, 0x47, 0xA3, 0xE9, 0x1B, 0x36, 0xD8, 0x2D, 0x8A,
0xD7, 0xE1, 0x54, 0x11, 0x95, 0xE4, 0x45, 0x88, 0x69, 0x8A, 0x2B, 0x35, 0xCE, 0xD0, 0xA5, 0x0B,
0xD5, 0x5D, 0xAC, 0xDB, 0xAF, 0x11, 0x4D, 0xCA, 0xB8, 0x1E, 0xE7, 0x01, 0x9E, 0xF4, 0x46, 0xA3,
0x8A, 0x94, 0x6D, 0x76, 0xBD, 0x8A, 0xC8, 0x3B, 0xD2, 0x31, 0x58, 0x0C, 0x79, 0xA8, 0x26, 0xE9,
0xD1, 0x79, 0x9C, 0xCB, 0xD4, 0x2B, 0x6A, 0x4F, 0xC6, 0xCC, 0xCF, 0x90, 0xA7, 0xB9, 0x98, 0x47,
0xFD, 0xFA, 0x4C, 0x6C, 0x6F, 0x81, 0x87, 0x3B, 0xCA, 0xB8, 0x50, 0xF6, 0x3E, 0x39, 0x5D, 0x4D,
0x97, 0x3F, 0x0F, 0x35, 0x39, 0x53, 0xFB, 0xFA, 0xCD, 0xAB, 0xA8, 0x7A, 0x62, 0x9A, 0x3F, 0xF2,
0x09, 0x27, 0x96, 0x3F, 0x07, 0x9A, 0x91, 0xF7, 0x16, 0xBF, 0xC6, 0x3A, 0x82, 0x5A, 0x4B, 0xCF,
0x49, 0x50, 0x95, 0x8C, 0x55, 0x80, 0x7E, 0x39, 0xB1, 0x48, 0x05, 0x1E, 0x21, 0xC7, 0x24, 0x4F
};
constinit const u8 Package2RsaPublicModulusDevelopment[se::RsaSize] = {
0xB3, 0x65, 0x54, 0xFB, 0x0A, 0xB0, 0x1E, 0x85, 0xA7, 0xF6, 0xCF, 0x91, 0x8E, 0xBA, 0x96, 0x99,
0x0D, 0x8B, 0x91, 0x69, 0x2A, 0xEE, 0x01, 0x20, 0x4F, 0x34, 0x5C, 0x2C, 0x4F, 0x4E, 0x37, 0xC7,
0xF1, 0x0B, 0xD4, 0xCD, 0xA1, 0x7F, 0x93, 0xF1, 0x33, 0x59, 0xCE, 0xB1, 0xE9, 0xDD, 0x26, 0xE6,
0xF3, 0xBB, 0x77, 0x87, 0x46, 0x7A, 0xD6, 0x4E, 0x47, 0x4A, 0xD1, 0x41, 0xB7, 0x79, 0x4A, 0x38,
0x06, 0x6E, 0xCF, 0x61, 0x8F, 0xCD, 0xC1, 0x40, 0x0B, 0xFA, 0x26, 0xDC, 0xC0, 0x34, 0x51, 0x83,
0xD9, 0x3B, 0x11, 0x54, 0x3B, 0x96, 0x27, 0x32, 0x9A, 0x95, 0xBE, 0x1E, 0x68, 0x11, 0x50, 0xA0,
0x6B, 0x10, 0xA8, 0x83, 0x8B, 0xF5, 0xFC, 0xBC, 0x90, 0x84, 0x7A, 0x5A, 0x5C, 0x43, 0x52, 0xE6,
0xC8, 0x26, 0xE9, 0xFE, 0x06, 0xA0, 0x8B, 0x53, 0x0F, 0xAF, 0x1E, 0xC4, 0x1C, 0x0B, 0xCF, 0x50,
0x1A, 0xA4, 0xF3, 0x5C, 0xFB, 0xF0, 0x97, 0xE4, 0xDE, 0x32, 0x0A, 0x9F, 0xE3, 0x5A, 0xAA, 0xB7,
0x44, 0x7F, 0x5C, 0x33, 0x60, 0xB9, 0x0F, 0x22, 0x2D, 0x33, 0x2A, 0xE9, 0x69, 0x79, 0x31, 0x42,
0x8F, 0xE4, 0x3A, 0x13, 0x8B, 0xE7, 0x26, 0xBD, 0x08, 0x87, 0x6C, 0xA6, 0xF2, 0x73, 0xF6, 0x8E,
0xA7, 0xF2, 0xFE, 0xFB, 0x6C, 0x28, 0x66, 0x0D, 0xBD, 0xD7, 0xEB, 0x42, 0xA8, 0x78, 0xE6, 0xB8,
0x6B, 0xAE, 0xC7, 0xA9, 0xE2, 0x40, 0x6E, 0x89, 0x20, 0x82, 0x25, 0x8E, 0x3C, 0x6A, 0x60, 0xD7,
0xF3, 0x56, 0x8E, 0xEC, 0x8D, 0x51, 0x8A, 0x63, 0x3C, 0x04, 0x78, 0x23, 0x0E, 0x90, 0x0C, 0xB4,
0xE7, 0x86, 0x3B, 0x4F, 0x8E, 0x13, 0x09, 0x47, 0x32, 0x0E, 0x04, 0xB8, 0x4D, 0x5B, 0xB0, 0x46,
0x71, 0xB0, 0x5C, 0xF4, 0xAD, 0x63, 0x4F, 0xC5, 0xE2, 0xAC, 0x1E, 0xC4, 0x33, 0x96, 0x09, 0x7B
};
constinit const u8 Package2AesKey[] {
0xFB, 0x8B, 0x6A, 0x9C, 0x79, 0x00, 0xC8, 0x49, 0xEF, 0xD2, 0x4D, 0x85, 0x4D, 0x30, 0xA0, 0xC7
};
}
void CheckVerifyResult(bool verify_result, pkg1::ErrorInfo error_info, const char *message) {
if (!verify_result) {
secmon::SetError(error_info);
AMS_ABORT(message);
}
}
void ClearIram() {
/* Clear the boot code image from where it was loaded in IRAM. */
util::ClearMemory(MemoryRegionPhysicalIramBootCodeImage.GetPointer(), MemoryRegionPhysicalIramBootCodeImage.GetSize());
}
void WaitForNxBootloader(const pkg1::SecureMonitorParameters &params, pkg1::BootloaderState state) {
/* Check NX Bootloader's state once per microsecond until it's advanced enough. */
while (params.bootloader_state < state) {
util::WaitMicroSeconds(1);
}
}
void LoadBootConfig(const void *src) {
pkg1::BootConfig * const dst = secmon::impl::GetBootConfigStorage();
if (pkg1::IsProduction()) {
std::memset(dst, 0, sizeof(*dst));
} else {
hw::FlushDataCache(src, sizeof(*dst));
hw::DataSynchronizationBarrierInnerShareable();
std::memcpy(dst, src, sizeof(*dst));
}
}
void VerifyOrClearBootConfig() {
/* On production hardware, the boot config is already cleared. */
if (pkg1::IsProduction()) {
return;
}
pkg1::BootConfig * const bc = secmon::impl::GetBootConfigStorage();
/* Determine if the bc is valid for the device. */
bool valid_for_device = false;
{
const bool valid_signature = secmon::boot::VerifyBootConfigSignature(*bc, BootConfigRsaPublicModulus, util::size(BootConfigRsaPublicModulus));
if (valid_signature) {
valid_for_device = secmon::boot::VerifyBootConfigEcid(*bc);
}
}
/* If the boot config is not valid for the device, clear its signed data. */
if (!valid_for_device) {
util::ClearMemory(std::addressof(bc->signed_data), sizeof(bc->signed_data));
}
}
void EnableTsc(u64 initial_tsc_value) {
/* Write the initial value to the CNTCV registers. */
const u32 lo = static_cast<u32>(initial_tsc_value >> 0);
const u32 hi = static_cast<u32>(initial_tsc_value >> 32);
reg::Write(SYSCTR0 + SYSCTR0_CNTCV0, lo);
reg::Write(SYSCTR0 + SYSCTR0_CNTCV1, hi);
/* Configure the system counter control register. */
reg::Write(SYSCTR0 + SYSCTR0_CNTCR, SYSCTR0_REG_BITS_ENUM(CNTCR_HDBG, ENABLE),
SYSCTR0_REG_BITS_ENUM(CNTCR_EN, ENABLE));
}
void WriteGpuCarveoutMagicNumbers() {
/* Define the magic numbers. */
constexpr u32 GpuMagicNumber = 0xC0EDBBCC;
constexpr u32 SkuInfo = 0x83;
constexpr u32 HdcpMicroCodeVersion = 0x2;
constexpr u32 ChipIdErista = 0x210;
constexpr u32 ChipIdMariko = 0x214;
/* Get our pointers. */
u32 *gpu_magic = MemoryRegionDramGpuCarveout.GetEndPointer<u32>() - (0x004 / sizeof(*gpu_magic));
u32 *tsec_magic = MemoryRegionDramGpuCarveout.GetEndPointer<u32>() - (0x100 / sizeof(*tsec_magic));
/* Write the gpu magic number. */
gpu_magic[0] = GpuMagicNumber;
/* Write the tsec magic numbers. */
tsec_magic[0] = SkuInfo;
tsec_magic[1] = HdcpMicroCodeVersion;
tsec_magic[2] = (false /* TODO: IsMariko */) ? ChipIdMariko : ChipIdErista;
/* Flush the magic numbers. */
hw::FlushDataCache(gpu_magic, 1 * sizeof(u32));
hw::FlushDataCache(tsec_magic, 3 * sizeof(u32));
hw::DataSynchronizationBarrierInnerShareable();
}
void UpdateBootConfigForPackage2Header(const pkg2::Package2Header &header) {
/* Check for all-zeroes signature. */
bool is_decrypted = header.signature[0] == 0;
is_decrypted &= crypto::IsSameBytes(header.signature, header.signature + 1, sizeof(header.signature) - 1);
/* Check for valid magic. */
is_decrypted &= crypto::IsSameBytes(header.meta.magic, pkg2::Package2Meta::Magic::String, sizeof(header.meta.magic));
/* Set the setting in boot config. */
secmon::impl::GetBootConfigStorage()->signed_data.SetPackage2Decrypted(is_decrypted);
}
void VerifyPackage2HeaderSignature(pkg2::Package2Header &header, bool verify) {
if (pkg1::IsProductionForPublicKey()) {
CheckVerifyResult(secmon::boot::VerifyPackage2Signature(header, Package2RsaPublicModulusProduction, util::size(Package2RsaPublicModulusProduction)), pkg1::ErrorInfo_InvalidPackage2Signature, "package2 header sign verification failed");
} else if (verify) {
CheckVerifyResult(secmon::boot::VerifyPackage2Signature(header, Package2RsaPublicModulusDevelopment, util::size(Package2RsaPublicModulusDevelopment)), pkg1::ErrorInfo_InvalidPackage2Signature, "package2 header sign verification failed");
}
}
void DecryptPackage2Header(pkg2::Package2Meta *dst, const pkg2::Package2Meta &src, bool encrypted) {
if (encrypted) {
constexpr int IvSize = 0x10;
/* Decrypt the header. */
DecryptPackage2(dst, sizeof(*dst), std::addressof(src), sizeof(src), Package2AesKey, util::size(Package2AesKey), std::addressof(src), IvSize, src.GetKeyGeneration());
/* Copy back the iv, which encodes encrypted metadata. */
std::memcpy(dst, std::addressof(src), IvSize);
} else {
std::memcpy(dst, std::addressof(src), sizeof(*dst));
}
}
}