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32062e439f
All of the logic for establishing an outbound peer connection including the initial HTTP handshake exchange is moved into a separate class. This allows PeerImp to have a strong invariant: All PeerImp objects that exist represent active peer connections that have already gone through the handshake process.
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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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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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
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ANY 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
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_OVERLAY_TMHELLO_H_INCLUDED
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#define RIPPLE_OVERLAY_TMHELLO_H_INCLUDED
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#include "ripple.pb.h"
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#include <ripple/app/main/Application.h>
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#include <ripple/protocol/BuildInfo.h>
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#include <ripple/protocol/UintTypes.h>
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#include <beast/http/message.h>
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#include <beast/utility/Journal.h>
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#include <utility>
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namespace ripple {
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enum
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{
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// The clock drift we allow a remote peer to have
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clockToleranceDeltaSeconds = 20
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};
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/** Computes a shared value based on the SSL connection state.
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When there is no man in the middle, both sides will compute the same
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value. In the presence of an attacker, the computed values will be
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different.
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If the shared value generation fails, the link MUST be dropped.
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@return A pair. Second will be false if shared value generation failed.
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*/
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std::pair<uint256, bool>
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makeSharedValue (SSL* ssl, beast::Journal journal);
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/** Build a TMHello protocol message. */
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protocol::TMHello
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buildHello (uint256 const& sharedValue, Application& app);
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/** Insert HTTP headers based on the TMHello protocol message. */
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void
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appendHello (beast::http::message& m, protocol::TMHello const& hello);
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/** Parse HTTP headers into TMHello protocol message.
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@return A pair. Second will be false if the parsing failed.
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*/
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std::pair<protocol::TMHello, bool>
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parseHello (beast::http::message const& m, beast::Journal journal);
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/** Validate and store the public key in the TMHello.
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This includes signature verification on the shared value.
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@return A pair. Second will be false if the check failed.
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*/
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std::pair<RippleAddress, bool>
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verifyHello (protocol::TMHello const& h, uint256 const& sharedValue,
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beast::Journal journal, Application& app);
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/** Parse a set of protocol versions.
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The returned list contains no duplicates and is sorted ascending.
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Any strings that are not parseable as RTXP protocol strings are
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excluded from the result set.
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*/
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std::vector<ProtocolVersion>
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parse_ProtocolVersions (std::string const& s);
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}
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#endif
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