585d7a4987
The two modes are quite different. One of them requires the BIO honor an extra BIO_ctrl. Also add an explanation at the top of addDTLSRetransmitTests for how these tests work. The description is scattered across many different places. BUG=63 Change-Id: Iff4cdd1fbf4f4439ae0c293f565eb6780c7c84f9 Reviewed-on: https://boringssl-review.googlesource.com/8121 Reviewed-by: David Benjamin <davidben@google.com>
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/* Copyright (c) 2014, 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_PACKETED_BIO
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#define HEADER_PACKETED_BIO
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#include <openssl/base.h>
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#include <openssl/bio.h>
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#include "../../crypto/test/scoped_types.h"
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#if defined(OPENSSL_WINDOWS)
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#pragma warning(push, 3)
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#include <winsock2.h>
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#pragma warning(pop)
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#else
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#include <sys/time.h>
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#endif
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// PacketedBioCreate creates a filter BIO which implements a reliable in-order
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// blocking datagram socket. It internally maintains a clock and honors
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// |BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT| based on it.
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//
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// During a |BIO_read|, the peer may signal the filter BIO to simulate a
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// timeout. If |advance_clock| is true, it automatically advances the clock and
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// continues reading, subject to the read deadline. Otherwise, it fails
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// immediately. The caller must then call |PacketedBioAdvanceClock| before
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// retrying |BIO_read|.
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ScopedBIO PacketedBioCreate(bool advance_clock);
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// PacketedBioGetClock returns the current time for |bio|.
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timeval PacketedBioGetClock(const BIO *bio);
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// PacketedBioAdvanceClock advances |bio|'s internal clock and returns true if
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// there is a pending timeout. Otherwise, it returns false.
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bool PacketedBioAdvanceClock(BIO *bio);
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#endif // HEADER_PACKETED_BIO
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