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fusee_cpp: implement read/decryption of package2

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Michael Scire 2021-09-01 00:50:52 -07:00 • committed by SciresM
parent dbad464323
commit 4355a2b036
3 changed files with 226 additions and 1 deletions
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39
fusee_cpp/program/source/fusee_setup_horizon.cpp
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@ -21,6 +21,7 @@
#include "fusee_emummc.hpp"
#include "fusee_mmc.hpp"
#include "fusee_fatal.hpp"
#include "fusee_package2.hpp"
#include "fusee_malloc.hpp"
#include "fs/fusee_fs_api.hpp"
@ -333,6 +334,39 @@ namespace ams::nxboot {
return target_firmware;
}
u8 *LoadBootConfigAndPackage2() {
Result result;
/* Load boot config. */
if (R_FAILED((result = ReadPackage2(0, secmon::MemoryRegionPhysicalIramBootConfig.GetPointer<void>(), secmon::MemoryRegionPhysicalIramBootConfig.GetSize())))) {
ShowFatalError("Failed to read boot config: 0x%08" PRIx32 "!\n", result.GetValue());
}
/* Read package2 header. */
u8 *package2;
size_t package2_size;
{
constexpr s64 Package2Offset = __builtin_offsetof(pkg2::StorageLayout, package2_header);
pkg2::Package2Header header;
if (R_FAILED((result = ReadPackage2(Package2Offset, std::addressof(header), sizeof(header))))) {
ShowFatalError("Failed to read package2 header: 0x%08" PRIx32 "!\n", result.GetValue());
}
package2_size = header.meta.GetSize();
package2 = static_cast<u8 *>(AllocateAligned(util::AlignUp(package2_size, 0x4000), 0x4000));
if (R_FAILED((result = ReadPackage2(Package2Offset, package2, util::AlignUp(package2_size, 0x4000))))) {
ShowFatalError("Failed to read package2: 0x%08" PRIx32 "!\n", result.GetValue());
}
}
/* Decrypt package2. */
DecryptPackage2(package2);
return package2;
}
}
void SetupAndStartHorizon() {
@ -356,7 +390,9 @@ namespace ams::nxboot {
const auto target_firmware = GetTargetFirmware(package1);
AMS_UNUSED(target_firmware);
/* TODO: Read/decrypt package2. */
/* Read/decrypt package2. */
u8 * const package2 = LoadBootConfigAndPackage2();
AMS_UNUSED(package2);
/* TODO: Setup warmboot firmware. */
@ -366,6 +402,7 @@ namespace ams::nxboot {
/* NOTE: Security Engine unusable past this point. */
/* TODO: Build modified package2. */
WaitForReboot();
}
}