54 lines
2.5 KiB
C
54 lines
2.5 KiB
C
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/* Copyright (c) 2018, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#ifndef HEADER_TEST_HANDSHAKE
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#define HEADER_TEST_HANDSHAKE
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#include <functional>
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#include <openssl/base.h>
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#include "settings_writer.h"
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// RetryAsync is called after a failed operation on |ssl| with return code
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// |ret|. If the operation should be retried, it simulates one asynchronous
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// event and returns true. Otherwise it returns false.
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bool RetryAsync(SSL *ssl, int ret);
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// CheckIdempotentError runs |func|, an operation on |ssl|, ensuring that
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// errors are idempotent.
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int CheckIdempotentError(const char *name, SSL *ssl, std::function<int()> func);
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// DoSplitHandshake delegates the SSL handshake to a separate process, called
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// the handshaker. This process proxies I/O between the handshaker and the
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// client, using the |BIO| from |ssl|. After a successful handshake, |ssl| is
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// replaced with a new |SSL| object, in a way that is intended to be invisible
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// to the caller.
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bool DoSplitHandshake(bssl::UniquePtr<SSL> *ssl, SettingsWriter *writer,
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bool is_resume);
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// The protocol between the proxy and the handshaker is defined by these
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// single-character prefixes.
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constexpr char kControlMsgWantRead = 'R'; // Handshaker wants data
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constexpr char kControlMsgWriteCompleted = 'W'; // Proxy has sent data
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constexpr char kControlMsgHandback = 'H'; // Proxy should resume control
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constexpr char kControlMsgError = 'E'; // Handshaker hit an error
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// The protocol between the proxy and handshaker uses these file descriptors.
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constexpr int kFdControl = 3; // Bi-directional dgram socket.
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constexpr int kFdProxyToHandshaker = 4; // Uni-directional pipe.
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constexpr int kFdHandshakerToProxy = 5; // Uni-directional pipe.
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#endif // HEADER_TEST_HANDSHAKE
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