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Don't send 'sendaddrv2' to pre-70016 software

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This commit is contained in:
Pieter Wuille 2020-12-03 14:59:27 -08:00
parent 5c4911e7e7
commit c5a8919660
1 changed files with 7 additions and 1 deletions
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8
src/net_processing.cpp
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@ -2365,7 +2365,13 @@ void PeerManager::ProcessMessage(CNode& pfrom, const std::string& msg_type, CDat
m_connman.PushMessage(&pfrom, msg_maker.Make(NetMsgType::VERACK));
// Signal ADDRv2 support (BIP155).
m_connman.PushMessage(&pfrom, msg_maker.Make(NetMsgType::SENDADDRV2));
if (greatest_common_version >= 70016) {
// BIP155 defines addrv2 and sendaddrv2 for all protocol versions, but some
// implementations reject messages they don't know. As a courtesy, don't send
// it to nodes with a version before 70016, as no software is known to support
// BIP155 that doesn't announce at least that protocol version number.
m_connman.PushMessage(&pfrom, msg_maker.Make(NetMsgType::SENDADDRV2));
}
pfrom.nServices = nServices;
pfrom.SetAddrLocal(addrMe);