5 * Copyright 2016 gRPC authors.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
27 // cloneTLSConfig returns a shallow clone of the exported
28 // fields of cfg, ignoring the unexported sync.Once, which
29 // contains a mutex and must not be copied.
31 // If cfg is nil, a new zero tls.Config is returned.
32 func cloneTLSConfig(cfg *tls.Config) *tls.Config {
39 Certificates: cfg.Certificates,
40 NameToCertificate: cfg.NameToCertificate,
41 GetCertificate: cfg.GetCertificate,
43 NextProtos: cfg.NextProtos,
44 ServerName: cfg.ServerName,
45 ClientAuth: cfg.ClientAuth,
46 ClientCAs: cfg.ClientCAs,
47 InsecureSkipVerify: cfg.InsecureSkipVerify,
48 CipherSuites: cfg.CipherSuites,
49 PreferServerCipherSuites: cfg.PreferServerCipherSuites,
50 SessionTicketsDisabled: cfg.SessionTicketsDisabled,
51 SessionTicketKey: cfg.SessionTicketKey,
52 ClientSessionCache: cfg.ClientSessionCache,
53 MinVersion: cfg.MinVersion,
54 MaxVersion: cfg.MaxVersion,
55 CurvePreferences: cfg.CurvePreferences,