mirror of https://github.com/kubernetes/kops.git
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// +build !windows
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// Copyright (c) 2019, Google LLC All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tpm2
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import (
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"fmt"
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"io"
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"github.com/google/go-tpm/tpmutil"
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)
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// OpenTPM opens a channel to the TPM at the given path. If the file is a
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// device, then it treats it like a normal TPM device, and if the file is a
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// Unix domain socket, then it opens a connection to the socket.
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func OpenTPM(path string) (io.ReadWriteCloser, error) {
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rwc, err := tpmutil.OpenTPM(path)
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if err != nil {
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return nil, err
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}
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// Make sure this is a TPM 2.0
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_, err = GetManufacturer(rwc)
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if err != nil {
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rwc.Close()
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return nil, fmt.Errorf("open %s: device is not a TPM 2.0", path)
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}
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return rwc, nil
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}
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