libhwsec/backend/tpm2/vendor.h

// Copyright 2022 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef LIBHWSEC_BACKEND_TPM2_VENDOR_H_
#define LIBHWSEC_BACKEND_TPM2_VENDOR_H_

#include <cstdint>
#include <optional>

#include <brillo/secure_blob.h>
#include <tpm_manager/proto_bindings/tpm_manager.pb.h>

#include "libhwsec/backend/tpm2/ro_data.h"
#include "libhwsec/backend/tpm2/trunks_context.h"
#include "libhwsec/backend/vendor.h"
#include "libhwsec/proxy/proxy.h"
#include "libhwsec/status.h"
#include "libhwsec/structures/ifx_info.h"

namespace hwsec {

class VendorTpm2 : public Vendor {
 public:
  VendorTpm2(TrunksContext& context,
             org::chromium::TpmManagerProxyInterface& tpm_manager,
             RoDataTpm2& ro_data)
      : context_(context), tpm_manager_(tpm_manager), ro_data_(ro_data) {}

  StatusOr<uint32_t> GetFamily() override;
  StatusOr<uint64_t> GetSpecLevel() override;
  StatusOr<uint32_t> GetManufacturer() override;
  StatusOr<uint32_t> GetTpmModel() override;
  StatusOr<uint64_t> GetFirmwareVersion() override;
  StatusOr<brillo::Blob> GetVendorSpecific() override;
  StatusOr<int32_t> GetFingerprint() override;
  StatusOr<GscType> GetGscType() override;
  StatusOr<bool> IsSrkRocaVulnerable() override;
  StatusOr<brillo::Blob> GetRsuDeviceId() override;
  StatusOr<IFXFieldUpgradeInfo> GetIFXFieldUpgradeInfo() override;
  Status DeclareTpmFirmwareStable() override;
  StatusOr<RwVersion> GetRwVersion() override;
  StatusOr<brillo::Blob> SendRawCommand(const brillo::Blob& command) override;

 private:
  Status EnsureVersionInfo();
  // The legacy version of RSU device ID will do an extra RMA auth.
  StatusOr<brillo::Blob> GetLegacyRsuDeviceId();

  TrunksContext& context_;
  org::chromium::TpmManagerProxyInterface& tpm_manager_;
  RoDataTpm2& ro_data_;

  bool fw_declared_stable_ = false;
  std::optional<tpm_manager::GetVersionInfoReply> version_info_;
};

}  // namespace hwsec

#endif  // LIBHWSEC_BACKEND_TPM2_VENDOR_H_