dash/src/protocol.cpp
gabriel-bjg b4d001a602
instantsend: deterministic lock using the same msg hash as islock (#4381)
When receiving an islock, propagate it as islock.
When creating/receiving and isdlock, propagate it as isdlock to peers which support it and as islock to peers which don't.
Functional tests to cover both islock and isdlock scenarios.
2021-10-05 20:42:34 +03:00

367 lines
11 KiB
C++

// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <protocol.h>
#include <util/system.h>
#include <util/strencodings.h>
static std::atomic<bool> g_initial_block_download_completed(false);
namespace NetMsgType {
const char *VERSION="version";
const char *VERACK="verack";
const char *ADDR="addr";
const char *ADDRV2="addrv2";
const char *SENDADDRV2="sendaddrv2";
const char *INV="inv";
const char *GETDATA="getdata";
const char *MERKLEBLOCK="merkleblock";
const char *GETBLOCKS="getblocks";
const char *GETHEADERS="getheaders";
const char *TX="tx";
const char *HEADERS="headers";
const char *BLOCK="block";
const char *GETADDR="getaddr";
const char *MEMPOOL="mempool";
const char *PING="ping";
const char *PONG="pong";
const char *NOTFOUND="notfound";
const char *FILTERLOAD="filterload";
const char *FILTERADD="filteradd";
const char *FILTERCLEAR="filterclear";
const char *REJECT="reject";
const char *SENDHEADERS="sendheaders";
const char *SENDCMPCT="sendcmpct";
const char *CMPCTBLOCK="cmpctblock";
const char *GETBLOCKTXN="getblocktxn";
const char *BLOCKTXN="blocktxn";
const char *GETCFILTERS="getcfilters";
const char *CFILTER="cfilter";
const char *GETCFHEADERS="getcfheaders";
const char *CFHEADERS="cfheaders";
const char *GETCFCHECKPT="getcfcheckpt";
const char *CFCHECKPT="cfcheckpt";
// Dash message types
const char *LEGACYTXLOCKREQUEST="ix";
const char *SPORK="spork";
const char *GETSPORKS="getsporks";
const char *DSACCEPT="dsa";
const char *DSVIN="dsi";
const char *DSFINALTX="dsf";
const char *DSSIGNFINALTX="dss";
const char *DSCOMPLETE="dsc";
const char *DSSTATUSUPDATE="dssu";
const char *DSTX="dstx";
const char *DSQUEUE="dsq";
const char *SENDDSQUEUE="senddsq";
const char *SYNCSTATUSCOUNT="ssc";
const char *MNGOVERNANCESYNC="govsync";
const char *MNGOVERNANCEOBJECT="govobj";
const char *MNGOVERNANCEOBJECTVOTE="govobjvote";
const char *GETMNLISTDIFF="getmnlistd";
const char *MNLISTDIFF="mnlistdiff";
const char *QSENDRECSIGS="qsendrecsigs";
const char *QFCOMMITMENT="qfcommit";
const char *QCONTRIB="qcontrib";
const char *QCOMPLAINT="qcomplaint";
const char *QJUSTIFICATION="qjustify";
const char *QPCOMMITMENT="qpcommit";
const char *QWATCH="qwatch";
const char *QSIGSESANN="qsigsesann";
const char *QSIGSHARESINV="qsigsinv";
const char *QGETSIGSHARES="qgetsigs";
const char *QBSIGSHARES="qbsigs";
const char *QSIGREC="qsigrec";
const char *QSIGSHARE="qsigshare";
const char* QGETDATA = "qgetdata";
const char* QDATA = "qdata";
const char *CLSIG="clsig";
const char *ISLOCK="islock";
const char *ISDLOCK="isdlock";
const char *MNAUTH="mnauth";
}; // namespace NetMsgType
/** All known message types. Keep this in the same order as the list of
* messages above and in protocol.h.
*/
const static std::string allNetMessageTypes[] = {
NetMsgType::VERSION,
NetMsgType::VERACK,
NetMsgType::ADDR,
NetMsgType::ADDRV2,
NetMsgType::SENDADDRV2,
NetMsgType::INV,
NetMsgType::GETDATA,
NetMsgType::MERKLEBLOCK,
NetMsgType::GETBLOCKS,
NetMsgType::GETHEADERS,
NetMsgType::TX,
NetMsgType::HEADERS,
NetMsgType::BLOCK,
NetMsgType::GETADDR,
NetMsgType::MEMPOOL,
NetMsgType::PING,
NetMsgType::PONG,
NetMsgType::NOTFOUND,
NetMsgType::FILTERLOAD,
NetMsgType::FILTERADD,
NetMsgType::FILTERCLEAR,
NetMsgType::REJECT,
NetMsgType::SENDHEADERS,
NetMsgType::SENDCMPCT,
NetMsgType::CMPCTBLOCK,
NetMsgType::GETBLOCKTXN,
NetMsgType::BLOCKTXN,
NetMsgType::GETCFILTERS,
NetMsgType::CFILTER,
NetMsgType::GETCFHEADERS,
NetMsgType::CFHEADERS,
NetMsgType::GETCFCHECKPT,
NetMsgType::CFCHECKPT,
// Dash message types
// NOTE: do NOT include non-implmented here, we want them to be "Unknown command" in ProcessMessage()
NetMsgType::LEGACYTXLOCKREQUEST,
NetMsgType::SPORK,
NetMsgType::GETSPORKS,
NetMsgType::SENDDSQUEUE,
NetMsgType::DSACCEPT,
NetMsgType::DSVIN,
NetMsgType::DSFINALTX,
NetMsgType::DSSIGNFINALTX,
NetMsgType::DSCOMPLETE,
NetMsgType::DSSTATUSUPDATE,
NetMsgType::DSTX,
NetMsgType::DSQUEUE,
NetMsgType::SYNCSTATUSCOUNT,
NetMsgType::MNGOVERNANCESYNC,
NetMsgType::MNGOVERNANCEOBJECT,
NetMsgType::MNGOVERNANCEOBJECTVOTE,
NetMsgType::GETMNLISTDIFF,
NetMsgType::MNLISTDIFF,
NetMsgType::QSENDRECSIGS,
NetMsgType::QFCOMMITMENT,
NetMsgType::QCONTRIB,
NetMsgType::QCOMPLAINT,
NetMsgType::QJUSTIFICATION,
NetMsgType::QPCOMMITMENT,
NetMsgType::QWATCH,
NetMsgType::QSIGSESANN,
NetMsgType::QSIGSHARESINV,
NetMsgType::QGETSIGSHARES,
NetMsgType::QBSIGSHARES,
NetMsgType::QSIGREC,
NetMsgType::QSIGSHARE,
NetMsgType::QGETDATA,
NetMsgType::QDATA,
NetMsgType::CLSIG,
NetMsgType::ISLOCK,
NetMsgType::ISDLOCK,
NetMsgType::MNAUTH,
};
const static std::vector<std::string> allNetMessageTypesVec(allNetMessageTypes, allNetMessageTypes+ARRAYLEN(allNetMessageTypes));
CMessageHeader::CMessageHeader(const MessageStartChars& pchMessageStartIn)
{
memcpy(pchMessageStart, pchMessageStartIn, MESSAGE_START_SIZE);
memset(pchCommand, 0, sizeof(pchCommand));
nMessageSize = -1;
memset(pchChecksum, 0, CHECKSUM_SIZE);
}
CMessageHeader::CMessageHeader(const MessageStartChars& pchMessageStartIn, const char* pszCommand, unsigned int nMessageSizeIn)
{
memcpy(pchMessageStart, pchMessageStartIn, MESSAGE_START_SIZE);
memset(pchCommand, 0, sizeof(pchCommand));
strncpy(pchCommand, pszCommand, COMMAND_SIZE);
nMessageSize = nMessageSizeIn;
memset(pchChecksum, 0, CHECKSUM_SIZE);
}
std::string CMessageHeader::GetCommand() const
{
return std::string(pchCommand, pchCommand + strnlen(pchCommand, COMMAND_SIZE));
}
bool CMessageHeader::IsValid(const MessageStartChars& pchMessageStartIn) const
{
// Check start string
if (memcmp(pchMessageStart, pchMessageStartIn, MESSAGE_START_SIZE) != 0)
return false;
// Check the command string for errors
for (const char* p1 = pchCommand; p1 < pchCommand + COMMAND_SIZE; p1++)
{
if (*p1 == 0)
{
// Must be all zeros after the first zero
for (; p1 < pchCommand + COMMAND_SIZE; p1++)
if (*p1 != 0)
return false;
}
else if (*p1 < ' ' || *p1 > 0x7E)
return false;
}
// Message size
if (nMessageSize > MAX_SIZE)
{
LogPrintf("CMessageHeader::IsValid(): (%s, %u bytes) nMessageSize > MAX_SIZE\n", GetCommand(), nMessageSize);
return false;
}
return true;
}
ServiceFlags GetDesirableServiceFlags(ServiceFlags services) {
if ((services & NODE_NETWORK_LIMITED) && g_initial_block_download_completed) {
return ServiceFlags(NODE_NETWORK_LIMITED);
}
return ServiceFlags(NODE_NETWORK);
}
void SetServiceFlagsIBDCache(bool state) {
g_initial_block_download_completed = state;
}
CAddress::CAddress() : CService()
{
Init();
}
CAddress::CAddress(CService ipIn, ServiceFlags nServicesIn) : CService(ipIn)
{
Init();
nServices = nServicesIn;
}
CAddress::CAddress(CService ipIn, ServiceFlags nServicesIn, uint32_t nTimeIn) : CService(ipIn)
{
Init();
nServices = nServicesIn;
nTime = nTimeIn;
}
void CAddress::Init()
{
nServices = NODE_NONE;
nTime = 100000000;
}
CInv::CInv()
{
type = 0;
hash.SetNull();
}
CInv::CInv(int typeIn, const uint256& hashIn) : type(typeIn), hash(hashIn) {}
bool operator<(const CInv& a, const CInv& b)
{
return (a.type < b.type || (a.type == b.type && a.hash < b.hash));
}
bool CInv::IsKnownType() const
{
return GetCommandInternal() != nullptr;
}
const char* CInv::GetCommandInternal() const
{
switch (type)
{
case MSG_TX: return NetMsgType::TX;
case MSG_BLOCK: return NetMsgType::BLOCK;
case MSG_FILTERED_BLOCK: return NetMsgType::MERKLEBLOCK;
case MSG_LEGACY_TXLOCK_REQUEST: return NetMsgType::LEGACYTXLOCKREQUEST;
case MSG_CMPCT_BLOCK: return NetMsgType::CMPCTBLOCK;
case MSG_SPORK: return NetMsgType::SPORK;
case MSG_DSTX: return NetMsgType::DSTX;
case MSG_GOVERNANCE_OBJECT: return NetMsgType::MNGOVERNANCEOBJECT;
case MSG_GOVERNANCE_OBJECT_VOTE: return NetMsgType::MNGOVERNANCEOBJECTVOTE;
case MSG_QUORUM_FINAL_COMMITMENT: return NetMsgType::QFCOMMITMENT;
case MSG_QUORUM_CONTRIB: return NetMsgType::QCONTRIB;
case MSG_QUORUM_COMPLAINT: return NetMsgType::QCOMPLAINT;
case MSG_QUORUM_JUSTIFICATION: return NetMsgType::QJUSTIFICATION;
case MSG_QUORUM_PREMATURE_COMMITMENT: return NetMsgType::QPCOMMITMENT;
case MSG_QUORUM_RECOVERED_SIG: return NetMsgType::QSIGREC;
case MSG_CLSIG: return NetMsgType::CLSIG;
case MSG_ISLOCK: return NetMsgType::ISLOCK;
case MSG_ISDLOCK: return NetMsgType::ISDLOCK;
default:
return nullptr;
}
}
std::string CInv::GetCommand() const
{
auto cmd = GetCommandInternal();
if (cmd == nullptr) {
throw std::out_of_range(strprintf("CInv::GetCommand(): type=%d unknown type", type));
}
return cmd;
}
std::string CInv::ToString() const
{
auto cmd = GetCommandInternal();
if (!cmd) {
return strprintf("0x%08x %s", type, hash.ToString());
} else {
return strprintf("%s %s", cmd, hash.ToString());
}
}
const std::vector<std::string> &getAllNetMessageTypes()
{
return allNetMessageTypesVec;
}
/**
* Convert a service flag (NODE_*) to a human readable string.
* It supports unknown service flags which will be returned as "UNKNOWN[...]".
* @param[in] bit the service flag is calculated as (1 << bit)
*/
static std::string serviceFlagToStr(size_t bit)
{
const uint64_t service_flag = 1ULL << bit;
switch ((ServiceFlags)service_flag) {
case NODE_NONE: abort(); // impossible
case NODE_NETWORK: return "NETWORK";
case NODE_GETUTXO: return "GETUTXO";
case NODE_BLOOM: return "BLOOM";
case NODE_XTHIN: return "XTHIN";
case NODE_COMPACT_FILTERS: return "COMPACT_FILTERS";
case NODE_NETWORK_LIMITED: return "NETWORK_LIMITED";
// Not using default, so we get warned when a case is missing
}
std::ostringstream stream;
stream.imbue(std::locale::classic());
stream << "UNKNOWN[";
if (bit < 8) {
stream << service_flag;
} else {
stream << "2^" << bit;
}
stream << "]";
return stream.str();
}
std::vector<std::string> serviceFlagsToStr(uint64_t flags)
{
std::vector<std::string> str_flags;
for (size_t i = 0; i < sizeof(flags) * 8; ++i) {
if (flags & (1ULL << i)) {
str_flags.emplace_back(serviceFlagToStr(i));
}
}
return str_flags;
}