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/*
*
* Copyright 2018 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.
*
*/
#include <grpc/support/port_platform.h>
#include "src/core/tsi/ssl/session_cache/ssl_session.h"
#ifdef OPENSSL_IS_BORINGSSL
// BoringSSL allows SSL_SESSION to outlive SSL and SSL_CTX objects which are
// re-created by gRPC on every certificate rotation or subchannel creation.
// BoringSSL guarantees that SSL_SESSION is immutable so it's safe to share
// the same original session object between different threads and connections.
namespace tsi {
namespace {
class BoringSslCachedSession : public SslCachedSession {
public:
BoringSslCachedSession(SslSessionPtr session)
: session_(std::move(session)) {}
SslSessionPtr CopySession() const override {
// SslSessionPtr will dereference on destruction.
SSL_SESSION_up_ref(session_.get());
return SslSessionPtr(session_.get());
}
private:
SslSessionPtr session_;
};
} // namespace
grpc_core::UniquePtr<SslCachedSession> SslCachedSession::Create(
SslSessionPtr session) {
return grpc_core::UniquePtr<SslCachedSession>(
grpc_core::New<BoringSslCachedSession>(std::move(session)));
}
} // namespace tsi
#endif /* OPENSSL_IS_BORINGSSL */
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