| // +build go1.8 |
| |
| /* |
| * |
| * Copyright 2017 gRPC authors. |
| * |
| * 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. |
| * |
| */ |
| |
| package credentials |
| |
| import ( |
| "crypto/tls" |
| ) |
| |
| func init() { |
| cipherSuiteLookup[tls.TLS_RSA_WITH_AES_128_CBC_SHA256] = "TLS_RSA_WITH_AES_128_CBC_SHA256" |
| cipherSuiteLookup[tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256] = "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256" |
| cipherSuiteLookup[tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256] = "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" |
| cipherSuiteLookup[tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305] = "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305" |
| cipherSuiteLookup[tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305] = "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305" |
| } |
| |
| // cloneTLSConfig returns a shallow clone of the exported |
| // fields of cfg, ignoring the unexported sync.Once, which |
| // contains a mutex and must not be copied. |
| // |
| // If cfg is nil, a new zero tls.Config is returned. |
| func cloneTLSConfig(cfg *tls.Config) *tls.Config { |
| if cfg == nil { |
| return &tls.Config{} |
| } |
| |
| return cfg.Clone() |
| } |