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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build darwin
package client
import (
"fmt"
spb "github.com/google/go-sev-guest/proto/sevsnp"
)
// DefaultSevGuestDevicePath is the platform's usual device path to the SEV guest.
const DefaultSevGuestDevicePath = "unknown"
// MacOSDevice implements the Device interface with Linux ioctls.
type MacOSDevice struct{}
// Open is not supported on MacOS.
func (*MacOSDevice) Open(_ string) error {
return fmt.Errorf("MacOS is unsupported")
}
// OpenDevice fails on MacOS.
func OpenDevice() (*MacOSDevice, error) {
return nil, fmt.Errorf("MacOS is unsupported")
}
// Close is not supported on MacOS.
func (*MacOSDevice) Close() error {
return fmt.Errorf("MacOS is unsupported")
}
// Ioctl is not supported on MacOS.
func (*MacOSDevice) Ioctl(_ uintptr, _ any) (uintptr, error) {
return 0, fmt.Errorf("MacOS is unsupported")
}
// Product is not supported on MacOS.
func (*MacOSDevice) Product() *spb.SevProduct {
return &spb.SevProduct{}
}
// MacOSQuoteProvider implements the QuoteProvider interface with Linux's configfs-tsm.
type MacOSQuoteProvider struct{}
// IsSupported checks if the quote provider is supported.
func (*MacOSQuoteProvider) IsSupported() bool {
return false
}
// GetRawQuote returns byte format attestation plus certificate table via ConfigFS.
func (*MacOSQuoteProvider) GetRawQuote(reportData [64]byte) ([]byte, error) {
return nil, fmt.Errorf("MacOS is unsupported")
}
// GetRawQuoteAtLevel returns byte format attestation plus certificate table via ConfigFS.
func (*MacOSQuoteProvider) GetRawQuoteAtLevel(reportData [64]byte, level uint) ([]byte, error) {
return nil, fmt.Errorf("MacOS is unsupported")
}
// GetQuoteProvider returns a supported SEV-SNP QuoteProvider.
func GetQuoteProvider() (QuoteProvider, error) {
return nil, fmt.Errorf("MacOS is unsupported")
}
// GetLeveledQuoteProvider returns a supported SEV-SNP LeveledQuoteProvider.
func GetLeveledQuoteProvider() (LeveledQuoteProvider, error) {
return nil, fmt.Errorf("MacOS is unsupported")
}
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