mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
588b98d085
Added optional TLS min/max protocol version and command line switches to set versions for the etcd server. If max version is not explicitly set by the user, let Go select the max version which is currently TLSv1.3. Previously max version was set to TLSv1.2. Signed-off-by: Tero Saarni <tero.saarni@est.tech>
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
// Copyright 2023 The etcd Authors
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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 tlsutil
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import (
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"crypto/tls"
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"fmt"
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)
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type TLSVersion string
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// Constants for TLS versions.
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const (
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TLSVersionDefault TLSVersion = ""
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TLSVersion12 TLSVersion = "TLS1.2"
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TLSVersion13 TLSVersion = "TLS1.3"
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)
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// GetTLSVersion returns the corresponding tls.Version or error.
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func GetTLSVersion(version string) (uint16, error) {
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var v uint16
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switch version {
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case string(TLSVersionDefault):
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v = 0 // 0 means let Go decide.
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case string(TLSVersion12):
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v = tls.VersionTLS12
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case string(TLSVersion13):
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v = tls.VersionTLS13
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default:
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return 0, fmt.Errorf("unexpected TLS version %q (must be one of: TLS1.2, TLS1.3)", version)
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}
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return v, nil
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}
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