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90bb53af20990dc2d4ae767c634785fd1c614345
rippled/src/ripple/overlay/impl/PeerImp.cpp
Vinnie Falco 90bb53af20 Structured Overlay support for TTL limited messages: 
When the [overlay] configuration key "expire" is set to 1, proposals
and validations will include a hops field. The hops is incremented with
each relay. Messages with a hop count will be dropped when they exceed
the TTL (Time to Live). Messages containing a hops field will not be
relayed or broadcast to older versions of rippled that don't understand
the field.

This change will not affect normal operation of the network or rippled
instances that do not set "expire" to 1.
2015-04-29 14:34:54 -04:00

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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include <BeastConfig.h>
#include <ripple/overlay/impl/TMHello.h>
#include <ripple/overlay/impl/PeerImp.h>
#include <ripple/overlay/impl/Tuning.h>
#include <ripple/app/ledger/InboundLedgers.h>
#include <ripple/app/ledger/LedgerMaster.h>
#include <ripple/app/misc/IHashRouter.h>
#include <ripple/app/misc/NetworkOPs.h>
#include <ripple/app/peers/ClusterNodeStatus.h>
#include <ripple/app/peers/UniqueNodeList.h>
#include <ripple/app/tx/InboundTransactions.h>
#include <ripple/basics/StringUtilities.h>
#include <ripple/basics/UptimeTimer.h>
#include <ripple/core/JobQueue.h>
#include <ripple/json/json_reader.h>
#include <ripple/resource/Fees.h>
#include <ripple/server/ServerHandler.h>
#include <ripple/protocol/BuildInfo.h>
#include <ripple/protocol/JsonFields.h>
#include <beast/module/core/diagnostic/SemanticVersion.h>
#include <beast/streams/debug_ostream.h>
#include <beast/weak_fn.h>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/asio/io_service.hpp>
#include <functional>
#include <beast/cxx14/memory.h> // <memory>
#include <sstream>
namespace ripple {
PeerImp::PeerImp (id_t id, endpoint_type remote_endpoint,
PeerFinder::Slot::ptr const& slot, beast::http::message&& request,
protocol::TMHello const& hello, RippleAddress const& publicKey,
Resource::Consumer consumer,
std::unique_ptr<beast::asio::ssl_bundle>&& ssl_bundle,
OverlayImpl& overlay)
: Child (overlay)
, id_(id)
, sink_(deprecatedLogs().journal("Peer"), makePrefix(id))
, p_sink_(deprecatedLogs().journal("Protocol"), makePrefix(id))
, journal_ (sink_)
, p_journal_(p_sink_)
, ssl_bundle_(std::move(ssl_bundle))
, socket_ (ssl_bundle_->socket)
, stream_ (ssl_bundle_->stream)
, strand_ (socket_.get_io_service())
, timer_ (socket_.get_io_service())
, remote_address_ (
beast::IPAddressConversion::from_asio(remote_endpoint))
, overlay_ (overlay)
, m_inbound (true)
, state_ (State::active)
, sanity_ (Sanity::unknown)
, insaneTime_ (clock_type::now())
, publicKey_(publicKey)
, hello_(hello)
, usage_(consumer)
, fee_ (Resource::feeLightPeer)
, slot_ (slot)
, http_message_(std::move(request))
, validatorsConnection_(getApp().getValidators().newConnection(id))
{
}
PeerImp::~PeerImp ()
{
if (cluster())
if (journal_.warning) journal_.warning <<
name_ << " left cluster";
if (state_ == State::active)
{
assert(publicKey_.isSet());
assert(publicKey_.isValid());
overlay_.onPeerDeactivate(id_, publicKey_);
}
overlay_.peerFinder().on_closed (slot_);
overlay_.remove (slot_);
}
void
PeerImp::run()
{
if(! strand_.running_in_this_thread())
return strand_.post(std::bind (
&PeerImp::run, shared_from_this()));
{
auto s = getVersion();
if (boost::starts_with(s, "rippled-"))
{
s.erase(s.begin(), s.begin() + 8);
beast::SemanticVersion v;
if (v.parse(s))
{
beast::SemanticVersion av;
av.parse("0.28.0-rc3");
hopsAware_ = v >= av;
}
}
}
if (m_inbound)
{
doAccept();
}
else
{
assert (state_ == State::active);
// XXX Set timer: connection is in grace period to be useful.
// XXX Set timer: connection idle (idle may vary depending on connection type.)
if ((hello_.has_ledgerclosed ()) && (
hello_.ledgerclosed ().size () == (256 / 8)))
{
memcpy (closedLedgerHash_.begin (),
hello_.ledgerclosed ().data (), 256 / 8);
if ((hello_.has_ledgerprevious ()) &&
(hello_.ledgerprevious ().size () == (256 / 8)))
{
memcpy (previousLedgerHash_.begin (),
hello_.ledgerprevious ().data (), 256 / 8);
addLedger (previousLedgerHash_);
}
else
{
previousLedgerHash_.zero();
}
}
doProtocolStart();
}
}
void
PeerImp::stop()
{
if(! strand_.running_in_this_thread())
return strand_.post(std::bind (
&PeerImp::stop, shared_from_this()));
if (socket_.is_open())
{
// The rationale for using different severity levels is that
// outbound connections are under our control and may be logged
// at a higher level, but inbound connections are more numerous and
// uncontrolled so to prevent log flooding the severity is reduced.
//
if(m_inbound)
{
if(journal_.debug) journal_.debug <<
"Stop";
}
else
{
if(journal_.info) journal_.info <<
"Stop";
}
}
close();
}
//------------------------------------------------------------------------------
void
PeerImp::send (Message::pointer const& m)
{
if (! strand_.running_in_this_thread())
return strand_.post(std::bind (
&PeerImp::send, shared_from_this(), m));
if(gracefulClose_)
return;
if(detaching_)
return;
send_queue_.push(m);
if(send_queue_.size() > 1)
return;
setTimer();
boost::asio::async_write (stream_, boost::asio::buffer(
send_queue_.front()->getBuffer()), strand_.wrap(std::bind(
&PeerImp::onWriteMessage, shared_from_this(),
beast::asio::placeholders::error,
beast::asio::placeholders::bytes_transferred)));
}
void
PeerImp::charge (Resource::Charge const& fee)
{
if ((usage_.charge(fee) == Resource::drop) &&
usage_.disconnect() && strand_.running_in_this_thread())
{
// Sever the connection
fail("charge: Resources");
}
}
//------------------------------------------------------------------------------
bool
PeerImp::crawl() const
{
auto const iter = http_message_.headers.find("Crawl");
if (iter == http_message_.headers.end())
return false;
return beast::ci_equal(iter->second, "public");
}
std::string
PeerImp::getVersion() const
{
if (hello_.has_fullversion ())
return hello_.fullversion ();
return std::string ();
}
Json::Value
PeerImp::json()
{
Json::Value ret (Json::objectValue);
ret[jss::public_key] = publicKey_.ToString ();
ret[jss::address] = remote_address_.to_string();
if (m_inbound)
ret[jss::inbound] = true;
if (cluster())
{
ret[jss::cluster] = true;
if (!name_.empty ())
ret[jss::name] = name_;
}
ret[jss::load] = usage_.balance ();
if (hello_.has_fullversion ())
ret[jss::version] = hello_.fullversion ();
if (hello_.has_protoversion ())
{
auto protocol = BuildInfo::make_protocol (hello_.protoversion ());
if (protocol != BuildInfo::getCurrentProtocol())
ret[jss::protocol] = to_string (protocol);
}
std::uint32_t minSeq, maxSeq;
ledgerRange(minSeq, maxSeq);
if ((minSeq != 0) || (maxSeq != 0))
ret[jss::complete_ledgers] = boost::lexical_cast<std::string>(minSeq) +
" - " + boost::lexical_cast<std::string>(maxSeq);
if (closedLedgerHash_ != zero)
ret[jss::ledger] = to_string (closedLedgerHash_);
switch (sanity_.load ())
{
case Sanity::insane:
ret[jss::sanity] = "insane";
break;
case Sanity::unknown:
ret[jss::sanity] = "unknown";
break;
case Sanity::sane:
// Nothing to do here
break;
}
if (last_status_.has_newstatus ())
{
switch (last_status_.newstatus ())
{
case protocol::nsCONNECTING:
ret[jss::status] = "connecting";
break;
case protocol::nsCONNECTED:
ret[jss::status] = "connected";
break;
case protocol::nsMONITORING:
ret[jss::status] = "monitoring";
break;
case protocol::nsVALIDATING:
ret[jss::status] = "validating";
break;
case protocol::nsSHUTTING:
ret[jss::status] = "shutting";
break;
default:
// FIXME: do we really want this?
p_journal_.warning <<
"Unknown status: " << last_status_.newstatus ();
}
}
return ret;
}
//------------------------------------------------------------------------------
bool
PeerImp::hasLedger (uint256 const& hash, std::uint32_t seq) const
{
std::lock_guard<std::mutex> sl(recentLock_);
if ((seq != 0) && (seq >= minLedger_) && (seq <= maxLedger_) &&
(sanity_.load() == Sanity::sane))
return true;
return std::find (recentLedgers_.begin(),
recentLedgers_.end(), hash) != recentLedgers_.end();
}
void
PeerImp::ledgerRange (std::uint32_t& minSeq,
std::uint32_t& maxSeq) const
{
std::lock_guard<std::mutex> sl(recentLock_);
minSeq = minLedger_;
maxSeq = maxLedger_;
}
bool
PeerImp::hasTxSet (uint256 const& hash) const
{
std::lock_guard<std::mutex> sl(recentLock_);
return std::find (recentTxSets_.begin(),
recentTxSets_.end(), hash) != recentTxSets_.end();
}
void
PeerImp::cycleStatus ()
{
previousLedgerHash_ = closedLedgerHash_;
closedLedgerHash_.zero ();
}
bool
PeerImp::supportsVersion (int version)
{
return hello_.has_protoversion () && (hello_.protoversion () >= version);
}
bool
PeerImp::hasRange (std::uint32_t uMin, std::uint32_t uMax)
{
return (uMin >= minLedger_) && (uMax <= maxLedger_);
}
//------------------------------------------------------------------------------
void
PeerImp::close()
{
assert(strand_.running_in_this_thread());
if (socket_.is_open())
{
detaching_ = true; // DEPRECATED
error_code ec;
timer_.cancel(ec);
socket_.close(ec);
if(m_inbound)
{
if(journal_.debug) journal_.debug <<
"Closed";
}
else
{
if(journal_.info) journal_.info <<
"Closed";
}
}
}
void
PeerImp::fail(std::string const& reason)
{
assert(strand_.running_in_this_thread());
if (socket_.is_open())
if (journal_.debug) journal_.debug <<
reason;
close();
}
void
PeerImp::fail(std::string const& name, error_code ec)
{
assert(strand_.running_in_this_thread());
if (socket_.is_open())
if (journal_.debug) journal_.debug <<
name << ": " << ec.message();
close();
}
void
PeerImp::gracefulClose()
{
assert(strand_.running_in_this_thread());
assert(socket_.is_open());
assert(! gracefulClose_);
gracefulClose_ = true;
#if 0
// Flush messages
while(send_queue_.size() > 1)
send_queue_.pop_back();
#endif
if (send_queue_.size() > 0)
return;
setTimer();
stream_.async_shutdown(strand_.wrap(std::bind(&PeerImp::onShutdown,
shared_from_this(), beast::asio::placeholders::error)));
}
void
PeerImp::setTimer()
{
error_code ec;
timer_.expires_from_now(std::chrono::seconds(15), ec);
if (ec)
{
if (journal_.error) journal_.error <<
"setTimer: " << ec.message();
return;
}
timer_.async_wait(strand_.wrap(std::bind(&PeerImp::onTimer,
shared_from_this(), beast::asio::placeholders::error)));
}
// convenience for ignoring the error code
void
PeerImp::cancelTimer()
{
error_code ec;
timer_.cancel(ec);
}
//------------------------------------------------------------------------------
std::string
PeerImp::makePrefix(id_t id)
{
std::stringstream ss;
ss << "[" << std::setfill('0') << std::setw(3) << id << "] ";
return ss.str();
}
void
PeerImp::onTimer (error_code const& ec)
{
if (! socket_.is_open())
return;
if (ec == boost::asio::error::operation_aborted)
return;
if (ec)
{
// This should never happen
if (journal_.error) journal_.error <<
"onTimer: " << ec.message();
return close();
}
fail("Timeout");
}
void
PeerImp::onShutdown(error_code ec)
{
cancelTimer();
// If we don't get eof then something went wrong
if (! ec)
{
if (journal_.error) journal_.error <<
"onShutdown: expected error condition";
return close();
}
if (ec != boost::asio::error::eof)
return fail("onShutdown", ec);
close();
}
//------------------------------------------------------------------------------
void PeerImp::doAccept()
{
assert(read_buffer_.size() == 0);
assert(http_message_.upgrade());
if(journal_.debug) journal_.debug <<
"doAccept: " << remote_address_;
bool success;
uint256 sharedValue;
std::tie(sharedValue, success) = makeSharedValue(
ssl_bundle_->stream.native_handle(), journal_);
// This shouldn't fail since we already computed
// the shared value successfully in OverlayImpl
if(! success)
return fail("makeSharedValue: Unexpected failure");
// TODO Apply headers to connection state.
auto resp = makeResponse(
! overlay_.peerFinder().config().peerPrivate,
http_message_, sharedValue);
beast::http::write (write_buffer_, resp);
auto const protocol = BuildInfo::make_protocol(hello_.protoversion());
if(journal_.info) journal_.info <<
"Protocol: " << to_string(protocol);
if(journal_.info) journal_.info <<
"Public Key: " << publicKey_.humanNodePublic();
bool const cluster = getApp().getUNL().nodeInCluster(publicKey_, name_);
if (cluster)
if (journal_.info) journal_.info <<
"Cluster name: " << name_;
overlay_.activate(shared_from_this());
// XXX Set timer: connection is in grace period to be useful.
// XXX Set timer: connection idle (idle may vary depending on connection type.)
if ((hello_.has_ledgerclosed ()) && (
hello_.ledgerclosed ().size () == (256 / 8)))
{
memcpy (closedLedgerHash_.begin (),
hello_.ledgerclosed ().data (), 256 / 8);
if ((hello_.has_ledgerprevious ()) &&
(hello_.ledgerprevious ().size () == (256 / 8)))
{
memcpy (previousLedgerHash_.begin (),
hello_.ledgerprevious ().data (), 256 / 8);
addLedger (previousLedgerHash_);
}
else
{
previousLedgerHash_.zero();
}
}
onWriteResponse(error_code(), 0);
}
beast::http::message
PeerImp::makeResponse (bool crawl,
beast::http::message const& req, uint256 const& sharedValue)
{
beast::http::message resp;
resp.request(false);
resp.status(101);
resp.reason("Switching Protocols");
resp.version(req.version());
resp.headers.append("Connection", "Upgrade");
resp.headers.append("Upgrade", "RTXP/1.2");
resp.headers.append("Connect-AS", "Peer");
resp.headers.append("Server", BuildInfo::getFullVersionString());
resp.headers.append ("Crawl", crawl ? "public" : "private");
protocol::TMHello hello = buildHello(sharedValue, getApp());
appendHello(resp, hello);
return resp;
}
// Called repeatedly to send the bytes in the response
void
PeerImp::onWriteResponse (error_code ec, std::size_t bytes_transferred)
{
cancelTimer();
if(! socket_.is_open())
return;
if(ec == boost::asio::error::operation_aborted)
return;
if(ec)
return fail("onWriteResponse", ec);
if(journal_.trace)
{
if (bytes_transferred > 0) journal_.trace <<
"onWriteResponse: " << bytes_transferred << " bytes";
else journal_.trace <<
"onWriteResponse";
}
write_buffer_.consume (bytes_transferred);
if (write_buffer_.size() == 0)
return doProtocolStart();
setTimer();
stream_.async_write_some (write_buffer_.data(),
strand_.wrap (std::bind (&PeerImp::onWriteResponse,
shared_from_this(), beast::asio::placeholders::error,
beast::asio::placeholders::bytes_transferred)));
}
//------------------------------------------------------------------------------
// Protocol logic
void
PeerImp::doProtocolStart()
{
onReadMessage(error_code(), 0);
}
// Called repeatedly with protocol message data
void
PeerImp::onReadMessage (error_code ec, std::size_t bytes_transferred)
{
if(! socket_.is_open())
return;
if(ec == boost::asio::error::operation_aborted)
return;
if(ec == boost::asio::error::eof)
{
if(journal_.info) journal_.info <<
"EOF";
return gracefulClose();
}
if(ec)
return fail("onReadMessage", ec);
if(journal_.trace)
{
if (bytes_transferred > 0) journal_.trace <<
"onReadMessage: " << bytes_transferred << " bytes";
else journal_.trace <<
"onReadMessage";
}
read_buffer_.commit (bytes_transferred);
while (read_buffer_.size() > 0)
{
std::size_t bytes_consumed;
std::tie(bytes_consumed, ec) = invokeProtocolMessage(
read_buffer_.data(), *this);
if (ec)
return fail("onReadMessage", ec);
if (! stream_.next_layer().is_open())
return;
if(gracefulClose_)
return;
if (bytes_consumed == 0)
break;
read_buffer_.consume (bytes_consumed);
}
// Timeout on writes only
stream_.async_read_some (read_buffer_.prepare (Tuning::readBufferBytes),
strand_.wrap (std::bind (&PeerImp::onReadMessage,
shared_from_this(), beast::asio::placeholders::error,
beast::asio::placeholders::bytes_transferred)));
}
void
PeerImp::onWriteMessage (error_code ec, std::size_t bytes_transferred)
{
cancelTimer();
if(! socket_.is_open())
return;
if(ec == boost::asio::error::operation_aborted)
return;
if(ec)
return fail("onWriteMessage", ec);
if(journal_.trace)
{
if (bytes_transferred > 0) journal_.trace <<
"onWriteMessage: " << bytes_transferred << " bytes";
else journal_.trace <<
"onWriteMessage";
}
assert(! send_queue_.empty());
send_queue_.pop();
if (! send_queue_.empty())
{
// Timeout on writes only
setTimer();
return boost::asio::async_write (stream_, boost::asio::buffer(
send_queue_.front()->getBuffer()), strand_.wrap(std::bind(
&PeerImp::onWriteMessage, shared_from_this(),
beast::asio::placeholders::error,
beast::asio::placeholders::bytes_transferred)));
}
if (gracefulClose_)
{
setTimer();
return stream_.async_shutdown(strand_.wrap(std::bind(
&PeerImp::onShutdown, shared_from_this(),
beast::asio::placeholders::error)));
}
}
//------------------------------------------------------------------------------
//
// ProtocolHandler
//
//------------------------------------------------------------------------------
PeerImp::error_code
PeerImp::onMessageUnknown (std::uint16_t type)
{
error_code ec;
// TODO
return ec;
}
PeerImp::error_code
PeerImp::onMessageBegin (std::uint16_t type,
std::shared_ptr <::google::protobuf::Message> const& m)
{
load_event_ = getApp().getJobQueue ().getLoadEventAP (
jtPEER, protocolMessageName(type));
fee_ = Resource::feeLightPeer;
return error_code{};
}
void
PeerImp::onMessageEnd (std::uint16_t,
std::shared_ptr <::google::protobuf::Message> const&)
{
load_event_.reset();
charge (fee_);
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMHello> const& m)
{
fail("Deprecated TMHello");
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMPing> const& m)
{
if (m->type () == protocol::TMPing::ptPING)
{
fee_ = Resource::feeMediumBurdenPeer;
m->set_type (protocol::TMPing::ptPONG);
send (std::make_shared<Message> (*m, protocol::mtPING));
}
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMCluster> const& m)
{
// VFALCO NOTE I think we should drop the peer immediately
if (! cluster())
{
fee_ = Resource::feeUnwantedData;
return;
}
for (int i = 0; i < m->clusternodes().size(); ++i)
{
protocol::TMClusterNode const& node = m->clusternodes(i);
std::string name;
if (node.has_nodename())
name = node.nodename();
ClusterNodeStatus s(name, node.nodeload(), node.reporttime());
RippleAddress nodePub;
nodePub.setNodePublic(node.publickey());
getApp().getUNL().nodeUpdate(nodePub, s);
}
int loadSources = m->loadsources().size();
if (loadSources != 0)
{
Resource::Gossip gossip;
gossip.items.reserve (loadSources);
for (int i = 0; i < m->loadsources().size(); ++i)
{
protocol::TMLoadSource const& node = m->loadsources (i);
Resource::Gossip::Item item;
item.address = beast::IP::Endpoint::from_string (node.name());
item.balance = node.cost();
if (item.address != beast::IP::Endpoint())
gossip.items.push_back(item);
}
overlay_.resourceManager().importConsumers (name_, gossip);
}
getApp().getFeeTrack().setClusterFee(getApp().getUNL().getClusterFee());
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMGetPeers> const& m)
{
// VFALCO TODO This message is now obsolete due to PeerFinder
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMPeers> const& m)
{
// VFALCO TODO This message is now obsolete due to PeerFinder
std::vector <beast::IP::Endpoint> list;
list.reserve (m->nodes().size());
for (int i = 0; i < m->nodes ().size (); ++i)
{
in_addr addr;
addr.s_addr = m->nodes (i).ipv4 ();
{
beast::IP::AddressV4 v4 (ntohl (addr.s_addr));
beast::IP::Endpoint address (v4, m->nodes (i).ipv4port ());
list.push_back (address);
}
}
if (! list.empty())
overlay_.peerFinder().on_legacy_endpoints (list);
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMEndpoints> const& m)
{
if (sanity_.load() != Sanity::sane)
{
// Don't allow endpoints from peer not known sane
return;
}
std::vector <PeerFinder::Endpoint> endpoints;
endpoints.reserve (m->endpoints().size());
for (int i = 0; i < m->endpoints ().size (); ++i)
{
PeerFinder::Endpoint endpoint;
protocol::TMEndpoint const& tm (m->endpoints(i));
// hops
endpoint.hops = tm.hops();
// ipv4
if (endpoint.hops > 0)
{
in_addr addr;
addr.s_addr = tm.ipv4().ipv4();
beast::IP::AddressV4 v4 (ntohl (addr.s_addr));
endpoint.address = beast::IP::Endpoint (v4, tm.ipv4().ipv4port ());
}
else
{
// This Endpoint describes the peer we are connected to.
// We will take the remote address seen on the socket and
// store that in the IP::Endpoint. If this is the first time,
// then we'll verify that their listener can receive incoming
// by performing a connectivity test.
//
endpoint.address = remote_address_.at_port (
tm.ipv4().ipv4port ());
}
endpoints.push_back (endpoint);
}
if (! endpoints.empty())
overlay_.peerFinder().on_endpoints (slot_, endpoints);
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMTransaction> const& m)
{
if (sanity_.load() == Sanity::insane)
return;
if (getApp().getOPs().isNeedNetworkLedger ())
{
// If we've never been in synch, there's nothing we can do
// with a transaction
return;
}
SerialIter sit (m->rawtransaction ());
try
{
STTx::pointer stx = std::make_shared <
STTx> (std::ref (sit));
uint256 txID = stx->getTransactionID ();
int flags;
if (! getApp().getHashRouter ().addSuppressionPeer (
txID, id_, flags))
{
// we have seen this transaction recently
if (flags & SF_BAD)
{
fee_ = Resource::feeInvalidSignature;
return;
}
if (!(flags & SF_RETRY))
return;
}
p_journal_.debug <<
"Got tx " << txID;
if (cluster())
{
if (! m->has_deferred () || ! m->deferred ())
{
// Skip local checks if a server we trust
// put the transaction in its open ledger
flags |= SF_TRUSTED;
}
if (! getConfig().VALIDATION_PRIV.isSet())
{
// For now, be paranoid and have each validator
// check each transaction, regardless of source
flags |= SF_SIGGOOD;
}
}
if (getApp().getJobQueue().getJobCount(jtTRANSACTION) > 100)
p_journal_.info << "Transaction queue is full";
else if (getApp().getLedgerMaster().getValidatedLedgerAge() > 240)
p_journal_.trace << "No new transactions until synchronized";
else
getApp().getJobQueue ().addJob (jtTRANSACTION,
"recvTransaction->checkTransaction",
std::bind(beast::weak_fn(&PeerImp::checkTransaction,
shared_from_this()), std::placeholders::_1, flags, stx));
}
catch (...)
{
p_journal_.warning << "Transaction invalid: " <<
strHex(m->rawtransaction ());
}
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMGetLedger> const& m)
{
fee_ = Resource::feeMediumBurdenPeer;
getApp().getJobQueue().addJob (jtLEDGER_REQ, "recvGetLedger", std::bind(
beast::weak_fn(&PeerImp::getLedger, shared_from_this()), m));
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMLedgerData> const& m)
{
protocol::TMLedgerData& packet = *m;
if (m->nodes ().size () <= 0)
{
p_journal_.warning << "Ledger/TXset data with no nodes";
return;
}
if (m->has_requestcookie ())
{
Peer::ptr target = overlay_.findPeerByShortID (m->requestcookie ());
if (target)
{
m->clear_requestcookie ();
target->send (std::make_shared<Message> (
packet, protocol::mtLEDGER_DATA));
}
else
{
p_journal_.info << "Unable to route TX/ledger data reply";
fee_ = Resource::feeUnwantedData;
}
return;
}
uint256 hash;
if (m->ledgerhash ().size () != 32)
{
p_journal_.warning << "TX candidate reply with invalid hash size";
fee_ = Resource::feeInvalidRequest;
return;
}
memcpy (hash.begin (), m->ledgerhash ().data (), 32);
if (m->type () == protocol::liTS_CANDIDATE)
{
// got data for a candidate transaction set
getApp().getJobQueue().addJob(jtTXN_DATA, "recvPeerData", std::bind(
beast::weak_fn(&PeerImp::peerTXData, shared_from_this()),
std::placeholders::_1, hash, m, p_journal_));
return;
}
if (!getApp().getInboundLedgers ().gotLedgerData (
hash, shared_from_this(), m))
{
p_journal_.trace << "Got data for unwanted ledger";
fee_ = Resource::feeUnwantedData;
}
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMProposeSet> const& m)
{
protocol::TMProposeSet& set = *m;
if (overlay_.setup().expire &&
set.has_hops() && ! slot_->cluster())
set.set_hops(set.hops() + 1);
// VFALCO Magic numbers are bad
if ((set.closetime() + 180) < getApp().getOPs().getCloseTimeNC())
return;
// VFALCO Magic numbers are bad
// Roll this into a validation function
if (
(set.currenttxhash ().size () != 32) ||
(set.nodepubkey ().size () < 28) ||
(set.signature ().size () < 56) ||
(set.nodepubkey ().size () > 128) ||
(set.signature ().size () > 128)
)
{
p_journal_.warning << "Proposal: malformed";
fee_ = Resource::feeInvalidSignature;
return;
}
if (set.has_previousledger () && (set.previousledger ().size () != 32))
{
p_journal_.warning << "Proposal: malformed";
fee_ = Resource::feeInvalidRequest;
return;
}
uint256 proposeHash, prevLedger;
memcpy (proposeHash.begin (), set.currenttxhash ().data (), 32);
if (set.has_previousledger ())
memcpy (prevLedger.begin (), set.previousledger ().data (), 32);
uint256 suppression = LedgerProposal::computeSuppressionID (
proposeHash, prevLedger, set.proposeseq(), set.closetime (),
Blob(set.nodepubkey ().begin (), set.nodepubkey ().end ()),
Blob(set.signature ().begin (), set.signature ().end ()));
if (! getApp().getHashRouter ().addSuppressionPeer (
suppression, id_))
{
p_journal_.trace << "Proposal: duplicate";
return;
}
RippleAddress signerPublic = RippleAddress::createNodePublic (
strCopy (set.nodepubkey ()));
if (signerPublic == getConfig ().VALIDATION_PUB)
{
p_journal_.trace << "Proposal: self";
return;
}
bool isTrusted = getApp().getUNL ().nodeInUNL (signerPublic);
if (!isTrusted && (sanity_.load() == Sanity::insane))
{
p_journal_.debug << "Proposal: Dropping UNTRUSTED (insane)";
return;
}
if (!isTrusted && getApp().getFeeTrack ().isLoadedLocal ())
{
p_journal_.debug << "Proposal: Dropping UNTRUSTED (load)";
return;
}
p_journal_.trace <<
"Proposal: " << (isTrusted ? "trusted" : "UNTRUSTED");
LedgerProposal::pointer proposal = std::make_shared<LedgerProposal> (
prevLedger.isNonZero () ? prevLedger : uint256(),
set.proposeseq (), proposeHash, set.closetime (),
signerPublic, suppression);
getApp().getJobQueue ().addJob (isTrusted ? jtPROPOSAL_t : jtPROPOSAL_ut,
"recvPropose->checkPropose", std::bind(beast::weak_fn(
&PeerImp::checkPropose, shared_from_this()), std::placeholders::_1,
m, proposal));
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMStatusChange> const& m)
{
p_journal_.trace << "Status: Change";
if (!m->has_networktime ())
m->set_networktime (getApp().getOPs ().getNetworkTimeNC ());
if (!last_status_.has_newstatus () || m->has_newstatus ())
last_status_ = *m;
else
{
// preserve old status
protocol::NodeStatus status = last_status_.newstatus ();
last_status_ = *m;
m->set_newstatus (status);
}
if (m->newevent () == protocol::neLOST_SYNC)
{
if (!closedLedgerHash_.isZero ())
{
p_journal_.trace << "Status: Out of sync";
closedLedgerHash_.zero ();
}
previousLedgerHash_.zero ();
return;
}
if (m->has_ledgerhash () && (m->ledgerhash ().size () == (256 / 8)))
{
// a peer has changed ledgers
memcpy (closedLedgerHash_.begin (), m->ledgerhash ().data (), 256 / 8);
addLedger (closedLedgerHash_);
p_journal_.trace << "LCL is " << closedLedgerHash_;
}
else
{
p_journal_.trace << "Status: No ledger";
closedLedgerHash_.zero ();
}
if (m->has_ledgerhashprevious () &&
m->ledgerhashprevious ().size () == (256 / 8))
{
memcpy (previousLedgerHash_.begin (),
m->ledgerhashprevious ().data (), 256 / 8);
addLedger (previousLedgerHash_);
}
else previousLedgerHash_.zero ();
if (m->has_firstseq () && m->has_lastseq())
{
minLedger_ = m->firstseq ();
maxLedger_ = m->lastseq ();
// VFALCO Is this workaround still needed?
// Work around some servers that report sequences incorrectly
if (minLedger_ == 0)
maxLedger_ = 0;
if (maxLedger_ == 0)
minLedger_ = 0;
}
if (m->has_ledgerseq() &&
getApp().getLedgerMaster().getValidatedLedgerAge() < 120)
{
checkSanity (m->ledgerseq(), getApp().getLedgerMaster().getValidLedgerIndex());
}
}
void
PeerImp::checkSanity (std::uint32_t validationSeq)
{
std::uint32_t serverSeq;
{
// Extract the seqeuence number of the highest
// ledger this peer has
std::lock_guard<std::mutex> sl (recentLock_);
serverSeq = maxLedger_;
}
if (serverSeq != 0)
{
// Compare the peer's ledger sequence to the
// sequence of a recently-validated ledger
checkSanity (serverSeq, validationSeq);
}
}
void
PeerImp::checkSanity (std::uint32_t seq1, std::uint32_t seq2)
{
int diff = std::max (seq1, seq2) - std::min (seq1, seq2);
if (diff < Tuning::saneLedgerLimit)
{
// The peer's ledger sequence is close to the validation's
sanity_ = Sanity::sane;
}
if ((diff > Tuning::insaneLedgerLimit) && (sanity_.load() != Sanity::insane))
{
// The peer's ledger sequence is way off the validation's
std::lock_guard<std::mutex> sl(recentLock_);
sanity_ = Sanity::insane;
insaneTime_ = clock_type::now();
}
}
// Should this connection be rejected
// and considered a failure
void PeerImp::check ()
{
if (m_inbound || (sanity_.load() == Sanity::sane))
return;
clock_type::time_point insaneTime;
{
std::lock_guard<std::mutex> sl(recentLock_);
insaneTime = insaneTime_;
}
bool reject = false;
if (sanity_.load() == Sanity::insane)
reject = (insaneTime - clock_type::now())
> std::chrono::seconds (Tuning::maxInsaneTime);
if (sanity_.load() == Sanity::unknown)
reject = (insaneTime - clock_type::now())
> std::chrono::seconds (Tuning::maxUnknownTime);
if (reject)
{
overlay_.peerFinder().on_failure (slot_);
strand_.post (std::bind (
(void (PeerImp::*)(std::string const&)) &PeerImp::fail,
shared_from_this(), "Not useful"));
}
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMHaveTransactionSet> const& m)
{
uint256 hashes;
if (m->hash ().size () != (256 / 8))
{
fee_ = Resource::feeInvalidRequest;
return;
}
uint256 hash;
// VFALCO TODO There should be no use of memcpy() throughout the program.
// TODO Clean up this magic number
//
memcpy (hash.begin (), m->hash ().data (), 32);
if (m->status () == protocol::tsHAVE)
{
std::lock_guard<std::mutex> sl(recentLock_);
if (std::find (recentTxSets_.begin (),
recentTxSets_.end (), hash) != recentTxSets_.end ())
{
fee_ = Resource::feeUnwantedData;
return;
}
if (recentTxSets_.size () == 128)
recentTxSets_.pop_front ();
recentTxSets_.push_back (hash);
}
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMValidation> const& m)
{
error_code ec;
std::uint32_t closeTime = getApp().getOPs().getCloseTimeNC();
if (overlay_.setup().expire &&
m->has_hops() && ! slot_->cluster())
m->set_hops(m->hops() + 1);
if (m->validation ().size () < 50)
{
p_journal_.warning << "Validation: Too small";
fee_ = Resource::feeInvalidRequest;
return;
}
try
{
Serializer s (m->validation ());
SerialIter sit (s);
STValidation::pointer val = std::make_shared <
STValidation> (std::ref (sit), false);
if (closeTime > (120 + val->getFieldU32(sfSigningTime)))
{
p_journal_.trace << "Validation: Too old";
fee_ = Resource::feeUnwantedData;
return;
}
if (! getApp().getHashRouter ().addSuppressionPeer (
s.getSHA512Half(), id_))
{
p_journal_.trace << "Validation: duplicate";
return;
}
bool isTrusted = getApp().getUNL ().nodeInUNL (val->getSignerPublic ());
if (!isTrusted && (sanity_.load () == Sanity::insane))
{
p_journal_.debug <<
"Validation: dropping untrusted from insane peer";
}
if (isTrusted || !getApp().getFeeTrack ().isLoadedLocal ())
{
getApp().getJobQueue ().addJob (isTrusted ?
jtVALIDATION_t : jtVALIDATION_ut, "recvValidation->checkValidation",
std::bind(beast::weak_fn(&PeerImp::checkValidation,
shared_from_this()), std::placeholders::_1, val,
isTrusted, m));
}
else
{
p_journal_.debug <<
"Validation: Dropping UNTRUSTED (load)";
}
}
catch (std::exception const& e)
{
p_journal_.warning <<
"Validation: Exception, " << e.what();
fee_ = Resource::feeInvalidRequest;
}
catch (...)
{
p_journal_.warning <<
"Validation: Unknown exception";
fee_ = Resource::feeInvalidRequest;
}
}
void
PeerImp::onMessage (std::shared_ptr <protocol::TMGetObjectByHash> const& m)
{
protocol::TMGetObjectByHash& packet = *m;
if (packet.query ())
{
// this is a query
if (packet.type () == protocol::TMGetObjectByHash::otFETCH_PACK)
{
doFetchPack (m);
return;
}
fee_ = Resource::feeMediumBurdenPeer;
protocol::TMGetObjectByHash reply;
reply.set_query (false);
if (packet.has_seq ())
reply.set_seq (packet.seq ());
reply.set_type (packet.type ());
if (packet.has_ledgerhash ())
reply.set_ledgerhash (packet.ledgerhash ());
// This is a very minimal implementation
for (int i = 0; i < packet.objects_size (); ++i)
{
uint256 hash;
const protocol::TMIndexedObject& obj = packet.objects (i);
if (obj.has_hash () && (obj.hash ().size () == (256 / 8)))
{
memcpy (hash.begin (), obj.hash ().data (), 256 / 8);
// VFALCO TODO Move this someplace more sensible so we dont
// need to inject the NodeStore interfaces.
NodeObject::pointer hObj =
getApp().getNodeStore ().fetch (hash);
if (hObj)
{
protocol::TMIndexedObject& newObj = *reply.add_objects ();
newObj.set_hash (hash.begin (), hash.size ());
newObj.set_data (&hObj->getData ().front (),
hObj->getData ().size ());
if (obj.has_nodeid ())
newObj.set_index (obj.nodeid ());
// VFALCO NOTE "seq" in the message is obsolete
}
}
}
p_journal_.trace <<
"GetObj: " << reply.objects_size () <<
" of " << packet.objects_size ();
send (std::make_shared<Message> (reply, protocol::mtGET_OBJECTS));
}
else
{
// this is a reply
std::uint32_t pLSeq = 0;
bool pLDo = true;
bool progress = false;
for (int i = 0; i < packet.objects_size (); ++i)
{
const protocol::TMIndexedObject& obj = packet.objects (i);
if (obj.has_hash () && (obj.hash ().size () == (256 / 8)))
{
if (obj.has_ledgerseq ())
{
if (obj.ledgerseq () != pLSeq)
{
if ((pLDo && (pLSeq != 0)) &&
p_journal_.active(beast::Journal::Severity::kDebug))
p_journal_.debug <<
"GetObj: Full fetch pack for " << pLSeq;
pLSeq = obj.ledgerseq ();
pLDo = !getApp().getOPs ().haveLedger (pLSeq);
if (!pLDo)
p_journal_.debug <<
"GetObj: Late fetch pack for " << pLSeq;
else
progress = true;
}
}
if (pLDo)
{
uint256 hash;
memcpy (hash.begin (), obj.hash ().data (), 256 / 8);
std::shared_ptr< Blob > data (
std::make_shared< Blob > (
obj.data ().begin (), obj.data ().end ()));
getApp().getOPs ().addFetchPack (hash, data);
}
}
}
if ((pLDo && (pLSeq != 0)) &&
p_journal_.active(beast::Journal::Severity::kDebug))
p_journal_.debug << "GetObj: Partial fetch pack for " << pLSeq;
if (packet.type () == protocol::TMGetObjectByHash::otFETCH_PACK)
getApp().getOPs ().gotFetchPack (progress, pLSeq);
}
}
//--------------------------------------------------------------------------
void
PeerImp::sendGetPeers ()
{
// Ask peer for known other peers.
protocol::TMGetPeers msg;
msg.set_doweneedthis (1);
Message::pointer packet = std::make_shared<Message> (
msg, protocol::mtGET_PEERS);
send (packet);
}
bool
PeerImp::sendHello()
{
bool success;
std::tie(sharedValue_, success) = makeSharedValue(
stream_.native_handle(), journal_);
if (! success)
return false;
auto const hello = buildHello (sharedValue_, getApp());
auto const m = std::make_shared<Message> (
std::move(hello), protocol::mtHELLO);
send (m);
return true;
}
void
PeerImp::addLedger (uint256 const& hash)
{
std::lock_guard<std::mutex> sl(recentLock_);
if (std::find (recentLedgers_.begin(),
recentLedgers_.end(), hash) != recentLedgers_.end())
return;
// VFALCO TODO See if a sorted vector would be better.
if (recentLedgers_.size () == 128)
recentLedgers_.pop_front ();
recentLedgers_.push_back (hash);
}
void
PeerImp::doFetchPack (const std::shared_ptr<protocol::TMGetObjectByHash>& packet)
{
// VFALCO TODO Invert this dependency using an observer and shared state object.
// Don't queue fetch pack jobs if we're under load or we already have
// some queued.
if (getApp().getFeeTrack ().isLoadedLocal () ||
(getApp().getLedgerMaster().getValidatedLedgerAge() > 40) ||
(getApp().getJobQueue().getJobCount(jtPACK) > 10))
{
p_journal_.info << "Too busy to make fetch pack";
return;
}
if (packet->ledgerhash ().size () != 32)
{
p_journal_.warning << "FetchPack hash size malformed";
fee_ = Resource::feeInvalidRequest;
return;
}
fee_ = Resource::feeHighBurdenPeer;
uint256 hash;
memcpy (hash.begin (), packet->ledgerhash ().data (), 32);
getApp().getJobQueue ().addJob (jtPACK, "MakeFetchPack",
std::bind (&NetworkOPs::makeFetchPack, &getApp().getOPs (),
std::placeholders::_1, std::weak_ptr<PeerImp> (shared_from_this ()),
packet, hash, UptimeTimer::getInstance ().getElapsedSeconds ()));
}
void
PeerImp::checkTransaction (Job&, int flags,
STTx::pointer stx)
{
// VFALCO TODO Rewrite to not use exceptions
try
{
// Expired?
if (stx->isFieldPresent(sfLastLedgerSequence) &&
(stx->getFieldU32 (sfLastLedgerSequence) <
getApp().getLedgerMaster().getValidLedgerIndex()))
{
getApp().getHashRouter().setFlag(stx->getTransactionID(), SF_BAD);
charge (Resource::feeUnwantedData);
return;
}
auto validate = (flags & SF_SIGGOOD) ? Validate::NO : Validate::YES;
std::string reason;
auto tx = std::make_shared<Transaction> (stx, validate, reason);
if (tx->getStatus () == INVALID)
{
if (! reason.empty ())
p_journal_.trace << "Exception checking transaction: " << reason;
getApp().getHashRouter ().setFlag (stx->getTransactionID (), SF_BAD);
charge (Resource::feeInvalidSignature);
return;
}
else
{
getApp().getHashRouter ().setFlag (stx->getTransactionID (), SF_SIGGOOD);
}
bool const trusted (flags & SF_TRUSTED);
getApp().getOPs ().processTransaction (tx, trusted, false, false);
}
catch (...)
{
getApp().getHashRouter ().setFlag (stx->getTransactionID (), SF_BAD);
charge (Resource::feeBadData);
}
}
// Called from our JobQueue
void
PeerImp::checkPropose (Job& job,
std::shared_ptr <protocol::TMProposeSet> const& packet,
LedgerProposal::pointer proposal)
{
bool sigGood = false;
bool isTrusted = (job.getType () == jtPROPOSAL_t);
p_journal_.trace <<
"Checking " << (isTrusted ? "trusted" : "UNTRUSTED") << " proposal";
assert (packet);
protocol::TMProposeSet& set = *packet;
uint256 consensusLCL;
if (! set.has_previousledger() || ! isTrusted)
{
std::lock_guard<Application::MutexType> lock(getApp().getMasterMutex());
consensusLCL = getApp().getOPs ().getConsensusLCL ();
}
uint256 prevLedger;
if (set.has_previousledger ())
{
// proposal includes a previous ledger
p_journal_.trace <<
"proposal with previous ledger";
memcpy (prevLedger.begin (), set.previousledger ().data (), 256 / 8);
proposal->setPrevLedger (prevLedger);
if (! cluster() && !proposal->checkSign (set.signature ()))
{
p_journal_.warning <<
"Proposal with previous ledger fails sig check";
charge (Resource::feeInvalidSignature);
return;
}
else
sigGood = true;
}
else
{
proposal->setPrevLedger (consensusLCL);
if (consensusLCL.isNonZero () && proposal->checkSign (set.signature ()))
{
prevLedger = consensusLCL;
sigGood = true;
}
else
{
// Could be mismatched prev ledger
p_journal_.warning <<
"Ledger proposal fails signature check";
proposal->setSignature (set.signature ());
}
}
if (isTrusted)
{
getApp().getOPs ().processTrustedProposal (
proposal, packet, publicKey_, prevLedger, sigGood);
}
else if (sigGood && (prevLedger == consensusLCL))
{
// relay untrusted proposal
p_journal_.trace <<
"relaying UNTRUSTED proposal";
overlay_.relay(set, proposal->getSuppressionID());
}
else
{
p_journal_.debug <<
"Not relaying UNTRUSTED proposal";
}
}
void
PeerImp::checkValidation (Job&, STValidation::pointer val,
bool isTrusted, std::shared_ptr<protocol::TMValidation> const& packet)
{
try
{
// VFALCO Which functions throw?
uint256 signingHash = val->getSigningHash();
if (! cluster() && !val->isValid (signingHash))
{
p_journal_.warning <<
"Validation is invalid";
charge (Resource::feeInvalidRequest);
return;
}
#if RIPPLE_HOOK_VALIDATORS
validatorsConnection_->onValidation(*val);
#endif
if (getApp().getOPs ().recvValidation(
val, std::to_string(id())))
overlay_.relay(*packet, signingHash);
}
catch (...)
{
p_journal_.trace <<
"Exception processing validation";
charge (Resource::feeInvalidRequest);
}
}
// Returns the set of peers that can help us get
// the TX tree with the specified root hash.
//
static
std::vector<std::shared_ptr<PeerImp>>
getPeersWithTree (OverlayImpl& ov,
uint256 const& rootHash, PeerImp const* skip)
{
std::vector<std::shared_ptr<PeerImp>> v;
ov.for_each([&](std::shared_ptr<PeerImp> const& p)
{
if (p->hasTxSet(rootHash) && p.get() != skip)
v.push_back(p);
});
return v;
}
// Returns the set of peers that claim
// to have the specified ledger.
//
static
std::vector<std::shared_ptr<PeerImp>>
getPeersWithLedger (OverlayImpl& ov,
uint256 const& ledgerHash, LedgerIndex ledger,
PeerImp const* skip)
{
std::vector<std::shared_ptr<PeerImp>> v;
ov.for_each([&](std::shared_ptr<PeerImp> const& p)
{
if (p->hasLedger(ledgerHash, ledger) &&
p.get() != skip)
v.push_back(p);
});
return v;
}
// VFALCO NOTE This function is way too big and cumbersome.
void
PeerImp::getLedger (std::shared_ptr<protocol::TMGetLedger> const& m)
{
protocol::TMGetLedger& packet = *m;
std::shared_ptr<SHAMap> map;
protocol::TMLedgerData reply;
bool fatLeaves = true, fatRoot = false;
if (packet.has_requestcookie ())
reply.set_requestcookie (packet.requestcookie ());
std::string logMe;
if (packet.itype () == protocol::liTS_CANDIDATE)
{
// Request is for a transaction candidate set
p_journal_.trace <<
"GetLedger: Tx candidate set";
if ((!packet.has_ledgerhash () || packet.ledgerhash ().size () != 32))
{
charge (Resource::feeInvalidRequest);
p_journal_.warning << "GetLedger: Tx candidate set invalid";
return;
}
uint256 txHash;
memcpy (txHash.begin (), packet.ledgerhash ().data (), 32);
map = getApp().getInboundTransactions().getSet (txHash, false);
if (!map)
{
if (packet.has_querytype () && !packet.has_requestcookie ())
{
p_journal_.debug <<
"GetLedger: Routing Tx set request";
auto const v = getPeersWithTree(
overlay_, txHash, this);
if (v.empty())
{
p_journal_.info <<
"GetLedger: Route TX set failed";
return;
}
auto const& p =
v[rand () % v.size ()];
packet.set_requestcookie (id ());
p->send (std::make_shared<Message> (
packet, protocol::mtGET_LEDGER));
return;
}
p_journal_.debug <<
"GetLedger: Can't provide map ";
charge (Resource::feeInvalidRequest);
return;
}
reply.set_ledgerseq (0);
reply.set_ledgerhash (txHash.begin (), txHash.size ());
reply.set_type (protocol::liTS_CANDIDATE);
fatLeaves = false; // We'll already have most transactions
fatRoot = true; // Save a pass
}
else
{
if (getApp().getFeeTrack().isLoadedLocal() && ! cluster())
{
p_journal_.debug <<
"GetLedger: Too busy";
return;
}
// Figure out what ledger they want
p_journal_.trace <<
"GetLedger: Received";
Ledger::pointer ledger;
if (packet.has_ledgerhash ())
{
uint256 ledgerhash;
if (packet.ledgerhash ().size () != 32)
{
charge (Resource::feeInvalidRequest);
p_journal_.warning <<
"GetLedger: Invalid request";
return;
}
memcpy (ledgerhash.begin (), packet.ledgerhash ().data (), 32);
logMe += "LedgerHash:";
logMe += to_string (ledgerhash);
ledger = getApp().getLedgerMaster ().getLedgerByHash (ledgerhash);
if (!ledger && p_journal_.trace)
p_journal_.trace <<
"GetLedger: Don't have " << ledgerhash;
if (!ledger && (packet.has_querytype () &&
!packet.has_requestcookie ()))
{
std::uint32_t seq = 0;
if (packet.has_ledgerseq ())
seq = packet.ledgerseq ();
auto const v = getPeersWithLedger(
overlay_, ledgerhash, seq, this);
if (v.empty ())
{
p_journal_.trace <<
"GetLedger: Cannot route";
return;
}
auto const& p = v[rand () % v.size ()];
packet.set_requestcookie (id ());
p->send (std::make_shared<Message>(
packet, protocol::mtGET_LEDGER));
p_journal_.debug <<
"GetLedger: Request routed";
return;
}
}
else if (packet.has_ledgerseq ())
{
if (packet.ledgerseq() <
getApp().getLedgerMaster().getEarliestFetch())
{
p_journal_.debug <<
"GetLedger: Early ledger request";
return;
}
ledger = getApp().getLedgerMaster ().getLedgerBySeq (
packet.ledgerseq ());
if (!ledger && p_journal_.debug)
p_journal_.debug <<
"GetLedger: Don't have " << packet.ledgerseq ();
}
else if (packet.has_ltype () && (packet.ltype () == protocol::ltCURRENT))
{
ledger = getApp().getLedgerMaster ().getCurrentLedger ();
}
else if (packet.has_ltype () && (packet.ltype () == protocol::ltCLOSED) )
{
ledger = getApp().getLedgerMaster ().getClosedLedger ();
if (ledger && !ledger->isClosed ())
ledger = getApp().getLedgerMaster ().getLedgerBySeq (
ledger->getLedgerSeq () - 1);
}
else
{
charge (Resource::feeInvalidRequest);
p_journal_.warning <<
"GetLedger: Unknown request";
return;
}
if ((!ledger) || (packet.has_ledgerseq () && (
packet.ledgerseq () != ledger->getLedgerSeq ())))
{
charge (Resource::feeInvalidRequest);
if (p_journal_.warning && ledger)
p_journal_.warning <<
"GetLedger: Invalid sequence";
return;
}
if (!packet.has_ledgerseq() && (ledger->getLedgerSeq() <
getApp().getLedgerMaster().getEarliestFetch()))
{
p_journal_.debug <<
"GetLedger: Early ledger request";
return;
}
// Fill out the reply
uint256 lHash = ledger->getHash ();
reply.set_ledgerhash (lHash.begin (), lHash.size ());
reply.set_ledgerseq (ledger->getLedgerSeq ());
reply.set_type (packet.itype ());
if (packet.itype () == protocol::liBASE)
{
// they want the ledger base data
p_journal_.trace <<
"GetLedger: Base data";
Serializer nData (128);
ledger->addRaw (nData);
reply.add_nodes ()->set_nodedata (
nData.getDataPtr (), nData.getLength ());
std::shared_ptr<SHAMap> map = ledger->peekAccountStateMap ();
if (map && map->getHash ().isNonZero ())
{
// return account state root node if possible
Serializer rootNode (768);
if (map->getRootNode (rootNode, snfWIRE))
{
reply.add_nodes ()->set_nodedata (
rootNode.getDataPtr (), rootNode.getLength ());
if (ledger->getTransHash ().isNonZero ())
{
map = ledger->peekTransactionMap ();
if (map && map->getHash ().isNonZero ())
{
rootNode.erase ();
if (map->getRootNode (rootNode, snfWIRE))
reply.add_nodes ()->set_nodedata (
rootNode.getDataPtr (),
rootNode.getLength ());
}
}
}
}
Message::pointer oPacket = std::make_shared<Message> (
reply, protocol::mtLEDGER_DATA);
send (oPacket);
return;
}
if (packet.itype () == protocol::liTX_NODE)
{
map = ledger->peekTransactionMap ();
logMe += " TX:";
logMe += to_string (map->getHash ());
}
else if (packet.itype () == protocol::liAS_NODE)
{
map = ledger->peekAccountStateMap ();
logMe += " AS:";
logMe += to_string (map->getHash ());
}
}
if (!map || (packet.nodeids_size () == 0))
{
p_journal_.warning <<
"GetLedger: Can't find map or empty request";
charge (Resource::feeInvalidRequest);
return;
}
p_journal_.trace <<
"GetLeder: " << logMe;
for (int i = 0; i < packet.nodeids ().size (); ++i)
{
SHAMapNodeID mn (packet.nodeids (i).data (), packet.nodeids (i).size ());
if (!mn.isValid ())
{
p_journal_.warning <<
"GetLedger: Invalid node " << logMe;
charge (Resource::feeInvalidRequest);
return;
}
std::vector<SHAMapNodeID> nodeIDs;
std::vector< Blob > rawNodes;
try
{
if (map->getNodeFat (mn, nodeIDs, rawNodes, fatRoot, fatLeaves))
{
assert (nodeIDs.size () == rawNodes.size ());
p_journal_.trace <<
"GetLedger: getNodeFat got " << rawNodes.size () << " nodes";
std::vector<SHAMapNodeID>::iterator nodeIDIterator;
std::vector< Blob >::iterator rawNodeIterator;
for (nodeIDIterator = nodeIDs.begin (),
rawNodeIterator = rawNodes.begin ();
nodeIDIterator != nodeIDs.end ();
++nodeIDIterator, ++rawNodeIterator)
{
Serializer nID (33);
nodeIDIterator->addIDRaw (nID);
protocol::TMLedgerNode* node = reply.add_nodes ();
node->set_nodeid (nID.getDataPtr (), nID.getLength ());
node->set_nodedata (&rawNodeIterator->front (),
rawNodeIterator->size ());
}
}
else
p_journal_.warning <<
"GetLedger: getNodeFat returns false";
}
catch (std::exception&)
{
std::string info;
if (packet.itype () == protocol::liTS_CANDIDATE)
info = "TS candidate";
else if (packet.itype () == protocol::liBASE)
info = "Ledger base";
else if (packet.itype () == protocol::liTX_NODE)
info = "TX node";
else if (packet.itype () == protocol::liAS_NODE)
info = "AS node";
if (!packet.has_ledgerhash ())
info += ", no hash specified";
p_journal_.warning <<
"getNodeFat( " << mn << ") throws exception: " << info;
}
}
Message::pointer oPacket = std::make_shared<Message> (
reply, protocol::mtLEDGER_DATA);
send (oPacket);
}
void
PeerImp::peerTXData (Job&, uint256 const& hash,
std::shared_ptr <protocol::TMLedgerData> const& pPacket,
beast::Journal journal)
{
getApp().getInboundTransactions().gotData (hash, shared_from_this(), pPacket);
}
} // ripple
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