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Disallow extended encoding for non-witness transactions (take 3)

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MarcoFalke 2019-05-13 15:38:10 -04:00
parent e79bbb73e0
commit fa2b52af32
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GPG key ID: CE2B75697E69A548
2 changed files with 33 additions and 14 deletions
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21
src/net_processing.cpp
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@ -3288,23 +3288,22 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter
if (m_enable_bip61) {
connman->PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_MALFORMED, std::string("error parsing message")));
}
if (strstr(e.what(), "end of data"))
{
if (strstr(e.what(), "end of data")) {
// Allow exceptions from under-length message on vRecv
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught, normally caused by a message being shorter than its stated length\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
}
else if (strstr(e.what(), "size too large"))
{
} else if (strstr(e.what(), "size too large")) {
// Allow exceptions from over-long size
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
}
else if (strstr(e.what(), "non-canonical ReadCompactSize()"))
{
} else if (strstr(e.what(), "non-canonical ReadCompactSize()")) {
// Allow exceptions from non-canonical encoding
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
}
else
{
} else if (strstr(e.what(), "Superfluous witness record")) {
// Allow exceptions from illegal witness encoding
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
} else if (strstr(e.what(), "Unknown transaction optional data")) {
// Allow exceptions from unknown witness encoding
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
} else {
PrintExceptionContinue(&e, "ProcessMessages()");
}
}