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Add TimeOffsets helper class

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This helper class is an alternative to CMedianFilter, but without a
lot of the special logic and exceptions that we needed while it was
still used for consensus.
This commit is contained in:
stickies-v
2024-03-07 11:23:00 +00:00
parent 55361a15d1
commit ee178dfcc1
10 changed files with 234 additions and 2 deletions
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9
src/net_processing.cpp
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@@ -23,6 +23,7 @@
#include <netbase.h>
#include <netmessagemaker.h>
#include <node/blockstorage.h>
#include <node/timeoffsets.h>
#include <node/txreconciliation.h>
#include <policy/fees.h>
#include <policy/policy.h>
@@ -753,6 +754,8 @@ private:
/** Next time to check for stale tip */
std::chrono::seconds m_stale_tip_check_time GUARDED_BY(cs_main){0s};
TimeOffsets m_outbound_time_offsets;
const Options m_opts;
bool RejectIncomingTxs(const CNode& peer) const;
@@ -3673,9 +3676,11 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
peer->m_time_offset = NodeSeconds{std::chrono::seconds{nTime}} - Now<NodeSeconds>();
if (!pfrom.IsInboundConn()) {
// Don't use timedata samples from inbound peers to make it
// harder for others to tamper with our adjusted time.
// Don't use time offset samples from inbound peers to make it
// harder for others to create false warnings about our clock being out of sync.
AddTimeData(pfrom.addr, Ticks<std::chrono::seconds>(peer->m_time_offset.load()));
m_outbound_time_offsets.Add(peer->m_time_offset);
m_outbound_time_offsets.WarnIfOutOfSync();
}
// If the peer is old enough to have the old alert system, send it the final alert.