Limit code size (EIP170).

ethereum · Nov 11, 2016 · 6dc60bd · 6dc60bd
1 parent f577396
commit 6dc60bd
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/libethereum/Executive.cpp b/libethereum/Executive.cpp
@@ -352,7 +352,9 @@ bool Executive::go(OnOpFunc const& _onOp)
 					m_res->gasForDeposit = m_gas;
 					m_res->depositSize = out.size();
 				}
-				if (out.size() * m_ext->evmSchedule().createDataGas <= m_gas)
+				if (out.size() > m_ext->evmSchedule().maxCodeSize)
+					BOOST_THROW_EXCEPTION(OutOfGas());
+				else if (out.size() * m_ext->evmSchedule().createDataGas <= m_gas)
 				{
 					if (m_res)
 						m_res->codeDeposit = CodeDeposit::Success;

diff --git a/libevmcore/EVMSchedule.h b/libevmcore/EVMSchedule.h
@@ -24,6 +24,8 @@
 
 #include <libdevcore/Common.h>
 
+#include <cstdint>
+
 namespace dev
 {
 namespace eth
@@ -69,6 +71,7 @@ struct EVMSchedule
 	unsigned extcodecopyGas = 20;
 	unsigned balanceGas = 20;
 	unsigned suicideGas = 0;
+	unsigned maxCodeSize = unsigned(-1);
 
 	bool staticCallDepthLimit() const { return !eip150Mode; }
 	bool suicideChargesNewAccountGas() const { return eip150Mode; }
@@ -89,6 +92,7 @@ static const EVMSchedule EIP150Schedule = []
 	schedule.sloadGas = 200;
 	schedule.callGas = 700;
 	schedule.suicideGas = 5000;
+	schedule.maxCodeSize = 23999;
 	return schedule;
 }();