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authorAndrew Chow <achow101-github@achow101.com>2019-06-06 09:53:16 +0200
committerAndrew Chow <achow101-github@achow101.com>2019-06-19 18:06:30 -0400
commit7c611e20007bf5face34d33dffa26c8db67e29ec (patch)
tree0af9a761777b24cdc6c44c20aa82f8cfe51fc6d5 /src/script
parent413e438ea9767710d4810c4400fd1242ca52cd1c (diff)
Move ismine to wallet module
Diffstat (limited to 'src/script')
-rw-r--r--src/script/ismine.cpp193
-rw-r--r--src/script/ismine.h53
2 files changed, 0 insertions, 246 deletions
diff --git a/src/script/ismine.cpp b/src/script/ismine.cpp
deleted file mode 100644
index 75fc2e84f1..0000000000
--- a/src/script/ismine.cpp
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
-// 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 <script/ismine.h>
-
-#include <key.h>
-#include <keystore.h>
-#include <script/script.h>
-#include <script/sign.h>
-
-
-typedef std::vector<unsigned char> valtype;
-
-namespace {
-
-/**
- * This is an enum that tracks the execution context of a script, similar to
- * SigVersion in script/interpreter. It is separate however because we want to
- * distinguish between top-level scriptPubKey execution and P2SH redeemScript
- * execution (a distinction that has no impact on consensus rules).
- */
-enum class IsMineSigVersion
-{
- TOP = 0, //!< scriptPubKey execution
- P2SH = 1, //!< P2SH redeemScript
- WITNESS_V0 = 2, //!< P2WSH witness script execution
-};
-
-/**
- * This is an internal representation of isminetype + invalidity.
- * Its order is significant, as we return the max of all explored
- * possibilities.
- */
-enum class IsMineResult
-{
- NO = 0, //!< Not ours
- WATCH_ONLY = 1, //!< Included in watch-only balance
- SPENDABLE = 2, //!< Included in all balances
- INVALID = 3, //!< Not spendable by anyone (uncompressed pubkey in segwit, P2SH inside P2SH or witness, witness inside witness)
-};
-
-bool PermitsUncompressed(IsMineSigVersion sigversion)
-{
- return sigversion == IsMineSigVersion::TOP || sigversion == IsMineSigVersion::P2SH;
-}
-
-bool HaveKeys(const std::vector<valtype>& pubkeys, const CKeyStore& keystore)
-{
- for (const valtype& pubkey : pubkeys) {
- CKeyID keyID = CPubKey(pubkey).GetID();
- if (!keystore.HaveKey(keyID)) return false;
- }
- return true;
-}
-
-IsMineResult IsMineInner(const CKeyStore& keystore, const CScript& scriptPubKey, IsMineSigVersion sigversion)
-{
- IsMineResult ret = IsMineResult::NO;
-
- std::vector<valtype> vSolutions;
- txnouttype whichType = Solver(scriptPubKey, vSolutions);
-
- CKeyID keyID;
- switch (whichType)
- {
- case TX_NONSTANDARD:
- case TX_NULL_DATA:
- case TX_WITNESS_UNKNOWN:
- break;
- case TX_PUBKEY:
- keyID = CPubKey(vSolutions[0]).GetID();
- if (!PermitsUncompressed(sigversion) && vSolutions[0].size() != 33) {
- return IsMineResult::INVALID;
- }
- if (keystore.HaveKey(keyID)) {
- ret = std::max(ret, IsMineResult::SPENDABLE);
- }
- break;
- case TX_WITNESS_V0_KEYHASH:
- {
- if (sigversion == IsMineSigVersion::WITNESS_V0) {
- // P2WPKH inside P2WSH is invalid.
- return IsMineResult::INVALID;
- }
- if (sigversion == IsMineSigVersion::TOP && !keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
- // We do not support bare witness outputs unless the P2SH version of it would be
- // acceptable as well. This protects against matching before segwit activates.
- // This also applies to the P2WSH case.
- break;
- }
- ret = std::max(ret, IsMineInner(keystore, GetScriptForDestination(PKHash(uint160(vSolutions[0]))), IsMineSigVersion::WITNESS_V0));
- break;
- }
- case TX_PUBKEYHASH:
- keyID = CKeyID(uint160(vSolutions[0]));
- if (!PermitsUncompressed(sigversion)) {
- CPubKey pubkey;
- if (keystore.GetPubKey(keyID, pubkey) && !pubkey.IsCompressed()) {
- return IsMineResult::INVALID;
- }
- }
- if (keystore.HaveKey(keyID)) {
- ret = std::max(ret, IsMineResult::SPENDABLE);
- }
- break;
- case TX_SCRIPTHASH:
- {
- if (sigversion != IsMineSigVersion::TOP) {
- // P2SH inside P2WSH or P2SH is invalid.
- return IsMineResult::INVALID;
- }
- CScriptID scriptID = CScriptID(uint160(vSolutions[0]));
- CScript subscript;
- if (keystore.GetCScript(scriptID, subscript)) {
- ret = std::max(ret, IsMineInner(keystore, subscript, IsMineSigVersion::P2SH));
- }
- break;
- }
- case TX_WITNESS_V0_SCRIPTHASH:
- {
- if (sigversion == IsMineSigVersion::WITNESS_V0) {
- // P2WSH inside P2WSH is invalid.
- return IsMineResult::INVALID;
- }
- if (sigversion == IsMineSigVersion::TOP && !keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
- break;
- }
- uint160 hash;
- CRIPEMD160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(hash.begin());
- CScriptID scriptID = CScriptID(hash);
- CScript subscript;
- if (keystore.GetCScript(scriptID, subscript)) {
- ret = std::max(ret, IsMineInner(keystore, subscript, IsMineSigVersion::WITNESS_V0));
- }
- break;
- }
-
- case TX_MULTISIG:
- {
- // Never treat bare multisig outputs as ours (they can still be made watchonly-though)
- if (sigversion == IsMineSigVersion::TOP) {
- break;
- }
-
- // Only consider transactions "mine" if we own ALL the
- // keys involved. Multi-signature transactions that are
- // partially owned (somebody else has a key that can spend
- // them) enable spend-out-from-under-you attacks, especially
- // in shared-wallet situations.
- std::vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
- if (!PermitsUncompressed(sigversion)) {
- for (size_t i = 0; i < keys.size(); i++) {
- if (keys[i].size() != 33) {
- return IsMineResult::INVALID;
- }
- }
- }
- if (HaveKeys(keys, keystore)) {
- ret = std::max(ret, IsMineResult::SPENDABLE);
- }
- break;
- }
- }
-
- if (ret == IsMineResult::NO && keystore.HaveWatchOnly(scriptPubKey)) {
- ret = std::max(ret, IsMineResult::WATCH_ONLY);
- }
- return ret;
-}
-
-} // namespace
-
-isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey)
-{
- switch (IsMineInner(keystore, scriptPubKey, IsMineSigVersion::TOP)) {
- case IsMineResult::INVALID:
- case IsMineResult::NO:
- return ISMINE_NO;
- case IsMineResult::WATCH_ONLY:
- return ISMINE_WATCH_ONLY;
- case IsMineResult::SPENDABLE:
- return ISMINE_SPENDABLE;
- }
- assert(false);
-}
-
-isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest)
-{
- CScript script = GetScriptForDestination(dest);
- return IsMine(keystore, script);
-}
diff --git a/src/script/ismine.h b/src/script/ismine.h
deleted file mode 100644
index da3da7e324..0000000000
--- a/src/script/ismine.h
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
-// 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.
-
-#ifndef BITCOIN_SCRIPT_ISMINE_H
-#define BITCOIN_SCRIPT_ISMINE_H
-
-#include <script/standard.h>
-
-#include <stdint.h>
-#include <bitset>
-
-class CKeyStore;
-class CScript;
-
-/** IsMine() return codes */
-enum isminetype
-{
- ISMINE_NO = 0,
- ISMINE_WATCH_ONLY = 1 << 0,
- ISMINE_SPENDABLE = 1 << 1,
- ISMINE_USED = 1 << 2,
- ISMINE_ALL = ISMINE_WATCH_ONLY | ISMINE_SPENDABLE,
- ISMINE_ALL_USED = ISMINE_ALL | ISMINE_USED,
- ISMINE_ENUM_ELEMENTS,
-};
-/** used for bitflags of isminetype */
-typedef uint8_t isminefilter;
-
-isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey);
-isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest);
-
-/**
- * Cachable amount subdivided into watchonly and spendable parts.
- */
-struct CachableAmount
-{
- // NO and ALL are never (supposed to be) cached
- std::bitset<ISMINE_ENUM_ELEMENTS> m_cached;
- CAmount m_value[ISMINE_ENUM_ELEMENTS];
- inline void Reset()
- {
- m_cached.reset();
- }
- void Set(isminefilter filter, CAmount value)
- {
- m_cached.set(filter);
- m_value[filter] = value;
- }
-};
-
-#endif // BITCOIN_SCRIPT_ISMINE_H