From fabcfa5f0cfe2484fe5cf5ced7cbae34a35c47c9 Mon Sep 17 00:00:00 2001
From: MarcoFalke <falke.marco@gmail.com>
Date: Wed, 13 Feb 2019 11:49:00 -0500
Subject: fuzz: Move deserialize tests to test/fuzz/deserialize.cpp

---
 src/test/fuzz/deserialize.cpp   | 167 ++++++++++++++++++++++++++++++++++++++++
 src/test/test_bitcoin_fuzzy.cpp | 167 ----------------------------------------
 2 files changed, 167 insertions(+), 167 deletions(-)
 create mode 100644 src/test/fuzz/deserialize.cpp
 delete mode 100644 src/test/test_bitcoin_fuzzy.cpp

(limited to 'src/test')

diff --git a/src/test/fuzz/deserialize.cpp b/src/test/fuzz/deserialize.cpp
new file mode 100644
index 0000000000..859fba0bdc
--- /dev/null
+++ b/src/test/fuzz/deserialize.cpp
@@ -0,0 +1,167 @@
+// Copyright (c) 2009-2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <addrman.h>
+#include <blockencodings.h>
+#include <chain.h>
+#include <coins.h>
+#include <compressor.h>
+#include <consensus/merkle.h>
+#include <net.h>
+#include <primitives/block.h>
+#include <protocol.h>
+#include <pubkey.h>
+#include <script/script.h>
+#include <streams.h>
+#include <undo.h>
+#include <version.h>
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <algorithm>
+#include <memory>
+#include <vector>
+
+#include <test/fuzz/fuzz.h>
+
+void test_one_input(std::vector<uint8_t> buffer)
+{
+    CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
+    try {
+        int nVersion;
+        ds >> nVersion;
+        ds.SetVersion(nVersion);
+    } catch (const std::ios_base::failure& e) {
+        return;
+    }
+
+#if BLOCK_DESERIALIZE
+            try
+            {
+                CBlock block;
+                ds >> block;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif TRANSACTION_DESERIALIZE
+            try
+            {
+                CTransaction tx(deserialize, ds);
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKLOCATOR_DESERIALIZE
+            try
+            {
+                CBlockLocator bl;
+                ds >> bl;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKMERKLEROOT
+            try
+            {
+                CBlock block;
+                ds >> block;
+                bool mutated;
+                BlockMerkleRoot(block, &mutated);
+            } catch (const std::ios_base::failure& e) {return;}
+#elif ADDRMAN_DESERIALIZE
+            try
+            {
+                CAddrMan am;
+                ds >> am;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKHEADER_DESERIALIZE
+            try
+            {
+                CBlockHeader bh;
+                ds >> bh;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BANENTRY_DESERIALIZE
+            try
+            {
+                CBanEntry be;
+                ds >> be;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif TXUNDO_DESERIALIZE
+            try
+            {
+                CTxUndo tu;
+                ds >> tu;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKUNDO_DESERIALIZE
+            try
+            {
+                CBlockUndo bu;
+                ds >> bu;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif COINS_DESERIALIZE
+            try
+            {
+                Coin coin;
+                ds >> coin;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif NETADDR_DESERIALIZE
+            try
+            {
+                CNetAddr na;
+                ds >> na;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif SERVICE_DESERIALIZE
+            try
+            {
+                CService s;
+                ds >> s;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif MESSAGEHEADER_DESERIALIZE
+            CMessageHeader::MessageStartChars pchMessageStart = {0x00, 0x00, 0x00, 0x00};
+            try
+            {
+                CMessageHeader mh(pchMessageStart);
+                ds >> mh;
+                if (!mh.IsValid(pchMessageStart)) {return;}
+            } catch (const std::ios_base::failure& e) {return;}
+#elif ADDRESS_DESERIALIZE
+            try
+            {
+                CAddress a;
+                ds >> a;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif INV_DESERIALIZE
+            try
+            {
+                CInv i;
+                ds >> i;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOOMFILTER_DESERIALIZE
+            try
+            {
+                CBloomFilter bf;
+                ds >> bf;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif DISKBLOCKINDEX_DESERIALIZE
+            try
+            {
+                CDiskBlockIndex dbi;
+                ds >> dbi;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif TXOUTCOMPRESSOR_DESERIALIZE
+            CTxOut to;
+            CTxOutCompressor toc(to);
+            try
+            {
+                ds >> toc;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKTRANSACTIONS_DESERIALIZE
+            try
+            {
+                BlockTransactions bt;
+                ds >> bt;
+            } catch (const std::ios_base::failure& e) {return;}
+#elif BLOCKTRANSACTIONSREQUEST_DESERIALIZE
+            try
+            {
+                BlockTransactionsRequest btr;
+                ds >> btr;
+            } catch (const std::ios_base::failure& e) {return;}
+#else
+#error Need at least one fuzz target to compile
+#endif
+}
diff --git a/src/test/test_bitcoin_fuzzy.cpp b/src/test/test_bitcoin_fuzzy.cpp
deleted file mode 100644
index 859fba0bdc..0000000000
--- a/src/test/test_bitcoin_fuzzy.cpp
+++ /dev/null
@@ -1,167 +0,0 @@
-// Copyright (c) 2009-2018 The Bitcoin Core developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include <addrman.h>
-#include <blockencodings.h>
-#include <chain.h>
-#include <coins.h>
-#include <compressor.h>
-#include <consensus/merkle.h>
-#include <net.h>
-#include <primitives/block.h>
-#include <protocol.h>
-#include <pubkey.h>
-#include <script/script.h>
-#include <streams.h>
-#include <undo.h>
-#include <version.h>
-
-#include <stdint.h>
-#include <unistd.h>
-
-#include <algorithm>
-#include <memory>
-#include <vector>
-
-#include <test/fuzz/fuzz.h>
-
-void test_one_input(std::vector<uint8_t> buffer)
-{
-    CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
-    try {
-        int nVersion;
-        ds >> nVersion;
-        ds.SetVersion(nVersion);
-    } catch (const std::ios_base::failure& e) {
-        return;
-    }
-
-#if BLOCK_DESERIALIZE
-            try
-            {
-                CBlock block;
-                ds >> block;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif TRANSACTION_DESERIALIZE
-            try
-            {
-                CTransaction tx(deserialize, ds);
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOCKLOCATOR_DESERIALIZE
-            try
-            {
-                CBlockLocator bl;
-                ds >> bl;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOCKMERKLEROOT
-            try
-            {
-                CBlock block;
-                ds >> block;
-                bool mutated;
-                BlockMerkleRoot(block, &mutated);
-            } catch (const std::ios_base::failure& e) {return;}
-#elif ADDRMAN_DESERIALIZE
-            try
-            {
-                CAddrMan am;
-                ds >> am;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOCKHEADER_DESERIALIZE
-            try
-            {
-                CBlockHeader bh;
-                ds >> bh;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BANENTRY_DESERIALIZE
-            try
-            {
-                CBanEntry be;
-                ds >> be;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif TXUNDO_DESERIALIZE
-            try
-            {
-                CTxUndo tu;
-                ds >> tu;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOCKUNDO_DESERIALIZE
-            try
-            {
-                CBlockUndo bu;
-                ds >> bu;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif COINS_DESERIALIZE
-            try
-            {
-                Coin coin;
-                ds >> coin;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif NETADDR_DESERIALIZE
-            try
-            {
-                CNetAddr na;
-                ds >> na;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif SERVICE_DESERIALIZE
-            try
-            {
-                CService s;
-                ds >> s;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif MESSAGEHEADER_DESERIALIZE
-            CMessageHeader::MessageStartChars pchMessageStart = {0x00, 0x00, 0x00, 0x00};
-            try
-            {
-                CMessageHeader mh(pchMessageStart);
-                ds >> mh;
-                if (!mh.IsValid(pchMessageStart)) {return;}
-            } catch (const std::ios_base::failure& e) {return;}
-#elif ADDRESS_DESERIALIZE
-            try
-            {
-                CAddress a;
-                ds >> a;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif INV_DESERIALIZE
-            try
-            {
-                CInv i;
-                ds >> i;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOOMFILTER_DESERIALIZE
-            try
-            {
-                CBloomFilter bf;
-                ds >> bf;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif DISKBLOCKINDEX_DESERIALIZE
-            try
-            {
-                CDiskBlockIndex dbi;
-                ds >> dbi;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif TXOUTCOMPRESSOR_DESERIALIZE
-            CTxOut to;
-            CTxOutCompressor toc(to);
-            try
-            {
-                ds >> toc;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOCKTRANSACTIONS_DESERIALIZE
-            try
-            {
-                BlockTransactions bt;
-                ds >> bt;
-            } catch (const std::ios_base::failure& e) {return;}
-#elif BLOCKTRANSACTIONSREQUEST_DESERIALIZE
-            try
-            {
-                BlockTransactionsRequest btr;
-                ds >> btr;
-            } catch (const std::ios_base::failure& e) {return;}
-#else
-#error Need at least one fuzz target to compile
-#endif
-}
-- 
cgit v1.2.3


From fab15ff70e8db26942db83a9aab7ebf974e8b6b2 Mon Sep 17 00:00:00 2001
From: MarcoFalke <falke.marco@gmail.com>
Date: Wed, 13 Feb 2019 14:25:49 -0500
Subject: fuzz: Script validation flags

---
 src/test/fuzz/script_flags.cpp | 72 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/test/fuzz/script_flags.cpp

(limited to 'src/test')

diff --git a/src/test/fuzz/script_flags.cpp b/src/test/fuzz/script_flags.cpp
new file mode 100644
index 0000000000..2c0bfa360c
--- /dev/null
+++ b/src/test/fuzz/script_flags.cpp
@@ -0,0 +1,72 @@
+// Copyright (c) 2009-2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <script/interpreter.h>
+#include <script/script.h>
+#include <streams.h>
+#include <version.h>
+
+#include <test/fuzz/fuzz.h>
+
+/** Flags that are not forbidden by an assert */
+static bool IsValidFlagCombination(unsigned flags);
+
+void test_one_input(std::vector<uint8_t> buffer)
+{
+    CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
+    try {
+        int nVersion;
+        ds >> nVersion;
+        ds.SetVersion(nVersion);
+    } catch (const std::ios_base::failure&) {
+        return;
+    }
+
+    try {
+        const CTransaction tx(deserialize, ds);
+        const PrecomputedTransactionData txdata(tx);
+
+        unsigned int verify_flags;
+        ds >> verify_flags;
+
+        if (!IsValidFlagCombination(verify_flags)) return;
+
+        unsigned int fuzzed_flags;
+        ds >> fuzzed_flags;
+
+        for (unsigned i = 0; i < tx.vin.size(); ++i) {
+            CTxOut prevout;
+            ds >> prevout;
+
+            const TransactionSignatureChecker checker{&tx, i, prevout.nValue, txdata};
+
+            ScriptError serror;
+            const bool ret = VerifyScript(tx.vin.at(i).scriptSig, prevout.scriptPubKey, &tx.vin.at(i).scriptWitness, verify_flags, checker, &serror);
+            assert(ret == (serror == SCRIPT_ERR_OK));
+
+            // Verify that removing flags from a passing test or adding flags to a failing test does not change the result
+            if (ret) {
+                verify_flags &= ~fuzzed_flags;
+            } else {
+                verify_flags |= fuzzed_flags;
+            }
+            if (!IsValidFlagCombination(verify_flags)) return;
+
+            ScriptError serror_fuzzed;
+            const bool ret_fuzzed = VerifyScript(tx.vin.at(i).scriptSig, prevout.scriptPubKey, &tx.vin.at(i).scriptWitness, verify_flags, checker, &serror_fuzzed);
+            assert(ret_fuzzed == (serror_fuzzed == SCRIPT_ERR_OK));
+
+            assert(ret_fuzzed == ret);
+        }
+    } catch (const std::ios_base::failure&) {
+        return;
+    }
+}
+
+static bool IsValidFlagCombination(unsigned flags)
+{
+    if (flags & SCRIPT_VERIFY_CLEANSTACK && ~flags & (SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS)) return false;
+    if (flags & SCRIPT_VERIFY_WITNESS && ~flags & SCRIPT_VERIFY_P2SH) return false;
+    return true;
+}
-- 
cgit v1.2.3