ARK-OS/arkos/boot/source/bootloader.c

#include <efi.h>
#include <efilib.h>

// Simulated hardware secure key
#define HARDWARE_SECURE_KEY "ARK-OS-9aaafa37077ee91e5df2f47a8e9e1564beecde1cc13b279f51d915bf8c746eb4"

EFI_STATUS check_os_signature(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
    Print(L"Checking Hardware Secure Key...\n");
    // In a real scenario, we would read the securebuild.ark or avb.img from disk.
    // For this conceptual implementation, we assume we read it and compare.
    int has_key = 1; // Assume key exists in hardware
    int match = 1;   // Assume signature matches

    if (has_key) {
        if (match) {
            Print(L"Signature matches. OS is verified.\n");
            return EFI_SUCCESS;
        } else {
            Print(L"WARNING: Signature mismatch! Halting boot.\n");
            return EFI_SECURITY_VIOLATION;
        }
    } else {
        Print(L"No hardware key found. Proceeding with unverified boot.\n");
        return EFI_SUCCESS;
    }
}

EFI_STATUS load_drm_module() {
    Print(L"Loading DRM Module...\n");
    // Code to load DRM from /frameworks/DRM into memory
    Print(L"DRM Module loaded and initialized.\n");
    return EFI_SUCCESS;
}

EFI_STATUS load_kernel(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
    Print(L"Loading Kernel into memory...\n");
    // Code to locate bzImage on the EFI System Partition, load it into RAM,
    // prepare boot parameters (command line, initrd), and jump to it.
    Print(L"Kernel loaded. Passing specifications and security file passthroughs...\n");
    // Boot transfer
    return EFI_SUCCESS;
}

EFI_STATUS efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
    InitializeLib(ImageHandle, SystemTable);
    
    Print(L"Welcome to ArkOS Bootloader\n");
    
    EFI_STATUS status = check_os_signature(ImageHandle, SystemTable);
    if (EFI_ERROR(status)) {
        return status;
    }

    // Only load DRM if we successfully passed the key check (or if no key was present and we proceeded)
    // The prompt says: "load DRM and makesure the OS is singe... if it does not have a key it will boot up anyway"
    load_drm_module();

    status = load_kernel(ImageHandle, SystemTable);
    if (EFI_ERROR(status)) {
        Print(L"Failed to load kernel.\n");
        return status;
    }

    Print(L"Jumping to Kernel...\n");
    
    // The kernel will now take over and eventually launch the Swift splash screen.
    return EFI_SUCCESS;
}