Check block major version in deserialize()

src/pool_block_parser.inl

@@ -84,6 +84,7 @@ int PoolBlock::deserialize(const uint8_t* data, size_t size, const SideChain& si
 		EXPECT_BYTE(TXIN_GEN);
 
 		READ_VARINT(m_txinGenHeight);
+		if (m_majorVersion != sidechain.network_major_version(m_txinGenHeight)) return __LINE__;
 		if (unlock_height != m_txinGenHeight + MINER_REWARD_UNLOCK_TIME) return __LINE__;
 
 		std::vector<uint8_t> outputs_blob;

src/side_chain.cpp

@@ -33,6 +33,7 @@
 #include "params.h"
 #include "json_parsers.h"
 #include "crypto.h"
+#include "hardforks/hardforks.h"
 #include <rapidjson/document.h>
 #include <rapidjson/istreamwrapper.h>
 #include <fstream>
@@ -1044,6 +1045,37 @@ double SideChain::get_reward_share(const Wallet& w) const
 	return total_reward ? (static_cast<double>(reward) / static_cast<double>(total_reward)) : 0.0;
 }
 
+uint64_t SideChain::network_major_version(uint64_t height) const
+{
+	const hardfork_t* hard_forks;
+	size_t num_hard_forks;
+
+	switch (m_networkType)
+	{
+	case NetworkType::Mainnet:
+	default:
+		hard_forks = mainnet_hard_forks;
+		num_hard_forks = num_mainnet_hard_forks;
+		break;
+
+	case NetworkType::Testnet:
+		hard_forks = testnet_hard_forks;
+		num_hard_forks = num_testnet_hard_forks;
+		break;
+
+	case NetworkType::Stagenet:
+		hard_forks = stagenet_hard_forks;
+		num_hard_forks = num_stagenet_hard_forks;
+		break;
+	}
+
+	uint64_t result = 1;
+	for (size_t i = 1; (i < num_hard_forks) && (height >= hard_forks[i].height); ++i) {
+		result = hard_forks[i].version;
+	}
+	return result;
+}
+
 difficulty_type SideChain::total_hashes() const
 {
 	const PoolBlock* tip = m_chainTip;

src/side_chain.h

@@ -65,6 +65,7 @@ public:
 	const std::vector<uint8_t>& consensus_id() const { return m_consensusId; }
 	uint64_t chain_window_size() const { return m_chainWindowSize; }
 	NetworkType network_type() const { return m_networkType; }
+	uint64_t network_major_version(uint64_t height) const;
 	FORCEINLINE difficulty_type difficulty() const { ReadLock lock(m_curDifficultyLock); return m_curDifficulty; }
 	difficulty_type total_hashes() const;
 	uint64_t block_time() const { return m_targetBlockTime; }