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fix: GetHeadersLimit is used for getheaders(2) and headers(2), refactor it to accept compressed instead of msg_type

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UdjinM6 2024-09-10 20:31:20 +03:00 committed by pasta
parent b224f3f6ca
commit a6bbaacfaa
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1 changed files with 10 additions and 9 deletions
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19
src/net_processing.cpp
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@ -1039,9 +1039,9 @@ static bool IsLimitedPeer(const Peer& peer)
}
/** Get maximum number of headers that can be included in one batch */
static uint16_t GetHeadersLimit(const CNode& pfrom, const std::string& msg_type)
static uint16_t GetHeadersLimit(const CNode& pfrom, bool compressed)
{
if (pfrom.GetCommonVersion() >= INCREASE_MAX_HEADERS2_VERSION && msg_type == NetMsgType::GETHEADERS2) {
if (pfrom.GetCommonVersion() >= INCREASE_MAX_HEADERS2_VERSION && compressed) {
return MAX_HEADERS_COMPRESSED_RESULT;
}
return MAX_HEADERS_UNCOMPRESSED_RESULT;
@ -2961,8 +2961,9 @@ void PeerManagerImpl::ProcessHeadersMessage(CNode& pfrom, Peer& peer,
}
// Consider fetching more headers.
std::string msg_type = UsesCompressedHeaders(peer) ? NetMsgType::GETHEADERS2 : NetMsgType::GETHEADERS;
if (nCount == GetHeadersLimit(pfrom, msg_type)) {
const bool uses_compressed = UsesCompressedHeaders(peer);
const std::string msg_type = uses_compressed ? NetMsgType::GETHEADERS2 : NetMsgType::GETHEADERS;
if (nCount == GetHeadersLimit(pfrom, uses_compressed)) {
// Headers message had its maximum size; the peer may have more headers.
if (MaybeSendGetHeaders(pfrom, msg_type, m_chainman.ActiveChain().GetLocator(pindexLast), peer)) {
LogPrint(BCLog::NET, "more %s (%d) to end to peer=%d (startheight:%d)\n",
@ -2970,7 +2971,7 @@ void PeerManagerImpl::ProcessHeadersMessage(CNode& pfrom, Peer& peer,
}
}
UpdatePeerStateForReceivedHeaders(pfrom, pindexLast, received_new_header, nCount == GetHeadersLimit(pfrom, msg_type));
UpdatePeerStateForReceivedHeaders(pfrom, pindexLast, received_new_header, nCount == GetHeadersLimit(pfrom, uses_compressed));
// Consider immediately downloading blocks.
HeadersDirectFetchBlocks(pfrom, peer, pindexLast);
@ -4064,8 +4065,8 @@ void PeerManagerImpl::ProcessMessage(
pindex = m_chainman.ActiveChain().Next(pindex);
}
const auto send_headers = [this /* for m_connman */, &hashStop, &pindex, &nodestate, &pfrom, &msgMaker](auto msg_type, auto& v_headers, auto callback) {
int nLimit = GetHeadersLimit(pfrom, msg_type);
const auto send_headers = [this /* for m_connman */, &hashStop, &pindex, &nodestate, &pfrom, &msgMaker](auto msg_type_internal, auto& v_headers, auto callback) {
int nLimit = GetHeadersLimit(pfrom, msg_type_internal == NetMsgType::HEADERS2);
for (; pindex; pindex = m_chainman.ActiveChain().Next(pindex)) {
v_headers.push_back(callback(pindex));
@ -4085,7 +4086,7 @@ void PeerManagerImpl::ProcessMessage(
// will re-announce the new block via headers (or compact blocks again)
// in the SendMessages logic.
nodestate->pindexBestHeaderSent = pindex ? pindex : m_chainman.ActiveChain().Tip();
m_connman.PushMessage(&pfrom, msgMaker.Make(msg_type, v_headers));
m_connman.PushMessage(&pfrom, msgMaker.Make(msg_type_internal, v_headers));
};
LogPrint(BCLog::NET, "%s %d to %s from peer=%d\n", msg_type, (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), pfrom.GetId());
@ -4573,7 +4574,7 @@ void PeerManagerImpl::ProcessMessage(
// Bypass the normal CBlock deserialization, as we don't want to risk deserializing 2000 full blocks.
unsigned int nCount = ReadCompactSize(vRecv);
if (nCount > GetHeadersLimit(pfrom, msg_type)) {
if (nCount > GetHeadersLimit(pfrom, msg_type == NetMsgType::HEADERS2)) {
Misbehaving(pfrom.GetId(), 20, strprintf("headers message size = %u", nCount));
return;
}