mirror of
https://github.com/Xahau/xahaud.git
synced 2025-11-21 02:55:50 +00:00
c47b4f3667
The existing code that deserialized an STAmount was sub-optimal and performed poorly. In some rare cases the operation could result in otherwise valid serialized amounts overflowing during deserialization. This commit will help detect error conditions more quickly and eliminate the problematic corner cases.
215 lines
8.2 KiB
C++
215 lines
8.2 KiB
C++
//------------------------------------------------------------------------------
|
|
/*
|
|
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 <ripple/basics/contract.h>
|
|
#include <ripple/protocol/Feature.h>
|
|
#include <ripple/protocol/digest.h>
|
|
|
|
#include <cstring>
|
|
|
|
namespace ripple {
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
constexpr char const* const detail::FeatureCollections::featureNames[];
|
|
|
|
detail::FeatureCollections::FeatureCollections()
|
|
{
|
|
features.reserve(numFeatures());
|
|
featureToIndex.reserve(numFeatures());
|
|
nameToFeature.reserve(numFeatures());
|
|
|
|
for (std::size_t i = 0; i < numFeatures(); ++i)
|
|
{
|
|
auto const name = featureNames[i];
|
|
sha512_half_hasher h;
|
|
h(name, std::strlen(name));
|
|
auto const f = static_cast<uint256>(h);
|
|
|
|
features.push_back(f);
|
|
featureToIndex[f] = i;
|
|
nameToFeature[name] = f;
|
|
}
|
|
}
|
|
|
|
boost::optional<uint256>
|
|
detail::FeatureCollections::getRegisteredFeature(std::string const& name) const
|
|
{
|
|
auto const i = nameToFeature.find(name);
|
|
if (i == nameToFeature.end())
|
|
return boost::none;
|
|
return i->second;
|
|
}
|
|
|
|
size_t
|
|
detail::FeatureCollections::featureToBitsetIndex(uint256 const& f) const
|
|
{
|
|
auto const i = featureToIndex.find(f);
|
|
if (i == featureToIndex.end())
|
|
LogicError("Invalid Feature ID");
|
|
return i->second;
|
|
}
|
|
|
|
uint256 const&
|
|
detail::FeatureCollections::bitsetIndexToFeature(size_t i) const
|
|
{
|
|
if (i >= features.size())
|
|
LogicError("Invalid FeatureBitset index");
|
|
return features[i];
|
|
}
|
|
|
|
static detail::FeatureCollections const featureCollections;
|
|
|
|
/** Amendments that this server supports, but doesn't enable by default */
|
|
std::vector<std::string> const&
|
|
detail::supportedAmendments()
|
|
{
|
|
// Commented out amendments will be supported in a future release (and
|
|
// uncommented at that time).
|
|
//
|
|
// There are also unconditionally supported amendments in the list.
|
|
// Those are amendments that were enabled some time ago and the
|
|
// amendment conditional code has been removed.
|
|
//
|
|
// ** WARNING **
|
|
// Unconditionally supported amendments need to remain in the list.
|
|
// Removing them will cause servers to become amendment blocked.
|
|
static std::vector<std::string> const supported{
|
|
"MultiSign", // Unconditionally supported.
|
|
"TrustSetAuth", // Unconditionally supported.
|
|
"FeeEscalation", // Unconditionally supported.
|
|
// "OwnerPaysFee",
|
|
"PayChan",
|
|
"Flow",
|
|
"CryptoConditions",
|
|
"TickSize",
|
|
"fix1368",
|
|
"Escrow",
|
|
"CryptoConditionsSuite",
|
|
"fix1373",
|
|
"EnforceInvariants",
|
|
"FlowCross",
|
|
"SortedDirectories",
|
|
"fix1201",
|
|
"fix1512",
|
|
"fix1513",
|
|
"fix1523",
|
|
"fix1528",
|
|
"DepositAuth",
|
|
"Checks",
|
|
"fix1571",
|
|
"fix1543",
|
|
"fix1623",
|
|
"DepositPreauth",
|
|
// Use liquidity from strands that consume max offers, but mark as dry
|
|
"fix1515",
|
|
"fix1578",
|
|
"MultiSignReserve",
|
|
"fixTakerDryOfferRemoval",
|
|
"fixMasterKeyAsRegularKey",
|
|
"fixCheckThreading",
|
|
"fixPayChanRecipientOwnerDir",
|
|
"DeletableAccounts",
|
|
"fixQualityUpperBound",
|
|
"RequireFullyCanonicalSig",
|
|
"fix1781",
|
|
"HardenedValidations",
|
|
"fixAmendmentMajorityCalc",
|
|
//"NegativeUNL", // Commented out to prevent automatic enablement
|
|
"TicketBatch",
|
|
"FlowSortStrands",
|
|
"fixSTAmountCanonicalize",
|
|
};
|
|
return supported;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
boost::optional<uint256>
|
|
getRegisteredFeature(std::string const& name)
|
|
{
|
|
return featureCollections.getRegisteredFeature(name);
|
|
}
|
|
|
|
size_t
|
|
featureToBitsetIndex(uint256 const& f)
|
|
{
|
|
return featureCollections.featureToBitsetIndex(f);
|
|
}
|
|
|
|
uint256
|
|
bitsetIndexToFeature(size_t i)
|
|
{
|
|
return featureCollections.bitsetIndexToFeature(i);
|
|
}
|
|
|
|
// clang-format off
|
|
|
|
uint256 const
|
|
featureOwnerPaysFee = *getRegisteredFeature("OwnerPaysFee"),
|
|
featureFlow = *getRegisteredFeature("Flow"),
|
|
featureCompareTakerFlowCross = *getRegisteredFeature("CompareTakerFlowCross"),
|
|
featureFlowCross = *getRegisteredFeature("FlowCross"),
|
|
featureCryptoConditionsSuite = *getRegisteredFeature("CryptoConditionsSuite"),
|
|
fix1513 = *getRegisteredFeature("fix1513"),
|
|
featureDepositAuth = *getRegisteredFeature("DepositAuth"),
|
|
featureChecks = *getRegisteredFeature("Checks"),
|
|
fix1571 = *getRegisteredFeature("fix1571"),
|
|
fix1543 = *getRegisteredFeature("fix1543"),
|
|
fix1623 = *getRegisteredFeature("fix1623"),
|
|
featureDepositPreauth = *getRegisteredFeature("DepositPreauth"),
|
|
fix1515 = *getRegisteredFeature("fix1515"),
|
|
fix1578 = *getRegisteredFeature("fix1578"),
|
|
featureMultiSignReserve = *getRegisteredFeature("MultiSignReserve"),
|
|
fixTakerDryOfferRemoval = *getRegisteredFeature("fixTakerDryOfferRemoval"),
|
|
fixMasterKeyAsRegularKey = *getRegisteredFeature("fixMasterKeyAsRegularKey"),
|
|
fixCheckThreading = *getRegisteredFeature("fixCheckThreading"),
|
|
fixPayChanRecipientOwnerDir = *getRegisteredFeature("fixPayChanRecipientOwnerDir"),
|
|
featureDeletableAccounts = *getRegisteredFeature("DeletableAccounts"),
|
|
fixQualityUpperBound = *getRegisteredFeature("fixQualityUpperBound"),
|
|
featureRequireFullyCanonicalSig = *getRegisteredFeature("RequireFullyCanonicalSig"),
|
|
fix1781 = *getRegisteredFeature("fix1781"),
|
|
featureHardenedValidations = *getRegisteredFeature("HardenedValidations"),
|
|
fixAmendmentMajorityCalc = *getRegisteredFeature("fixAmendmentMajorityCalc"),
|
|
featureNegativeUNL = *getRegisteredFeature("NegativeUNL"),
|
|
featureTicketBatch = *getRegisteredFeature("TicketBatch"),
|
|
featureFlowSortStrands = *getRegisteredFeature("FlowSortStrands"),
|
|
fixSTAmountCanonicalize = *getRegisteredFeature("fixSTAmountCanonicalize");
|
|
|
|
// The following amendments have been active for at least two years. Their
|
|
// pre-amendment code has been removed and the identifiers are deprecated.
|
|
[[deprecated("The referenced amendment has been retired"), maybe_unused]]
|
|
uint256 const
|
|
retiredPayChan = *getRegisteredFeature("PayChan"),
|
|
retiredCryptoConditions = *getRegisteredFeature("CryptoConditions"),
|
|
retiredTickSize = *getRegisteredFeature("TickSize"),
|
|
retiredFix1368 = *getRegisteredFeature("fix1368"),
|
|
retiredEscrow = *getRegisteredFeature("Escrow"),
|
|
retiredFix1373 = *getRegisteredFeature("fix1373"),
|
|
retiredEnforceInvariants = *getRegisteredFeature("EnforceInvariants"),
|
|
retiredSortedDirectories = *getRegisteredFeature("SortedDirectories"),
|
|
retiredFix1201 = *getRegisteredFeature("fix1201"),
|
|
retiredFix1512 = *getRegisteredFeature("fix1512"),
|
|
retiredFix1523 = *getRegisteredFeature("fix1523"),
|
|
retiredFix1528 = *getRegisteredFeature("fix1528");
|
|
|
|
// clang-format on
|
|
|
|
} // namespace ripple
|