Serge Bazanski | cc25bdf | 2018-10-25 14:02:58 +0200 | [diff] [blame^] | 1 | // +build go1.8 |
| 2 | |
| 3 | /* |
| 4 | * |
| 5 | * Copyright 2017 gRPC authors. |
| 6 | * |
| 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 |
| 10 | * |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | * |
| 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. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | package credentials |
| 22 | |
| 23 | import ( |
| 24 | "crypto/tls" |
| 25 | ) |
| 26 | |
| 27 | func init() { |
| 28 | cipherSuiteLookup[tls.TLS_RSA_WITH_AES_128_CBC_SHA256] = "TLS_RSA_WITH_AES_128_CBC_SHA256" |
| 29 | cipherSuiteLookup[tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256] = "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256" |
| 30 | cipherSuiteLookup[tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256] = "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" |
| 31 | cipherSuiteLookup[tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305] = "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305" |
| 32 | cipherSuiteLookup[tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305] = "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305" |
| 33 | } |
| 34 | |
| 35 | // cloneTLSConfig returns a shallow clone of the exported |
| 36 | // fields of cfg, ignoring the unexported sync.Once, which |
| 37 | // contains a mutex and must not be copied. |
| 38 | // |
| 39 | // If cfg is nil, a new zero tls.Config is returned. |
| 40 | func cloneTLSConfig(cfg *tls.Config) *tls.Config { |
| 41 | if cfg == nil { |
| 42 | return &tls.Config{} |
| 43 | } |
| 44 | |
| 45 | return cfg.Clone() |
| 46 | } |