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1a0993ae354c36d6f219e67f82ca8236530d6201 scripts: add PE dylib checking to symbol-check.py (fanquake)
Pull request description:
Uses `objdump -x` and looks for `DLL Name:` lines. i.e:
```bash
objdump -x src/qt/bitcoin-qt.exe | grep "DLL Name:"
DLL Name: ADVAPI32.dll
DLL Name: dwmapi.dll
DLL Name: GDI32.dll
DLL Name: IMM32.dll
DLL Name: IPHLPAPI.DLL
DLL Name: KERNEL32.dll
DLL Name: msvcrt.dll
DLL Name: ole32.dll
DLL Name: OLEAUT32.dll
DLL Name: SHELL32.dll
DLL Name: SHLWAPI.dll
DLL Name: USER32.dll
DLL Name: UxTheme.dll
DLL Name: VERSION.dll
DLL Name: WINMM.dll
DLL Name: WS2_32.dll
```
ACKs for top commit:
dongcarl:
Concept ACK 1a0993ae354c36d6f219e67f82ca8236530d6201
hebasto:
ACK 1a0993ae354c36d6f219e67f82ca8236530d6201, tested on Linux Mint 19.3:
Tree-SHA512: 0099a50e2c616d5239a15cafa9a7c483e9c40244af41549e4738be0f5360f27a2afb956eb50b47cf446b242f4cfc6dc9d111306a056fb83789eefbd71eddabd2
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76db4b260e4826a1e59a5e44c92e4c10ec986527 gui: avoid QT Designer/Form Editor re-formatting (Jon Atack)
aae26053f958ae9a96a25d32c6341b14daaa4f26 gui: display Mapped AS in peers info window (Jon Atack)
Pull request description:
Continuing the asmap integration of #16702 which added `mapped_as` to the rpc getpeerinfo output, this adds the mapped AS to the Peers detail window in the GUI wallet.
`$ src/qt/bitcoin-qt -asmap=<path-to-asmap-file>` (asmap on)
`$ src/qt/bitcoin-qt` (asmap off)
Added a tooltip and a couple of minor fixups.
ACKs for top commit:
laanwj:
ACK 76db4b260e4826a1e59a5e44c92e4c10ec986527
Tree-SHA512: 5f44c05c247bfabc9c161884d3af47c50a571cd02777b320ce389e61efa47706adbf0ea5e6644ae40423cb579d8bd0bb3c84fc6b618293a7add8e4327f07f63f
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net_permissions.h and timedata.h
4308aa67e3ea38e3fe5ac84e38a29df36c0d0e10 tests: Add fuzzing harness for functions in net_permissions.h (practicalswift)
43ff0d91f8a4af68e64fd12273133322d44a69ea tests: Add fuzzing harness for functions in timedata.h (practicalswift)
a8695db7851dabdda08b2ec9a68d6a27c0e2fdc4 tests: Add fuzzing harness for functions in addrdb.h (practicalswift)
Pull request description:
Add fuzzing harnesses for functions in `addrdb.h`, `net_permissions.h` and `timedata.h`.
Top commit has no ACKs.
Tree-SHA512: ea41431e7f1944ecd0c102e6ea04e70d6763dc9b6e3a0949a4f7299897a92fa3e8e7139f9f65b9508ce8d45613ea24ec0fd6d4a8be3cfd7c23136512b17770eb
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5aab011805ceb12801644170700b1a62e0bf4a5d test: add unit test for non-standard "scriptsig-not-pushonly" txs (Sebastian Falbesoner)
Pull request description:
Approaches another missing unit test of issue #17394: Checks that the function `IsStandardTx()` returns rejection reason "scriptsig-not-pushonly" if any one of the input's scriptSig consists of any other ops than just PUSHs.
ACKs for top commit:
MarcoFalke:
ACK 5aab011805ceb12801644170700b1a62e0bf4a5d 🍟
practicalswift:
ACK 5aab011805ceb12801644170700b1a62e0bf4a5d -- patch looks correct
Tree-SHA512: fbe25bcf57e5f0c8d2397eb67e61fe8d9145ba83032789adb2b67d6fcbcd87e6427e9d965e8cd7bbaaea482e39ec2f110f71ef2de079c7d1fba2712848caa9ba
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Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
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3dc27a15242a22b5301904375e5880372e9b7f4d doc: Add internal interface conventions to developer notes (Russell Yanofsky)
1dca9dc4c772fa0a4ec52c4d88b7cd3d243aea7b refactor: Change createWallet, fillPSBT argument order (Russell Yanofsky)
96dfe5ced64979e51649d20555aa182defc80119 refactor: Change Chain::broadcastTransaction param order (Russell Yanofsky)
6ceb21909ce66b7b4762a855889acd46bb6b77f3 refactor: Rename Chain::Notifications methods to be consistent with other interfaces methods (Russell Yanofsky)
1c2ab1a6d29f2c6c065dae4f4a4e2ad1286311b3 refactor: Rename Node::disconnect methods (Russell Yanofsky)
77e4b0657298c715c835d8d2eb11e173852e6815 refactor: Get rid of Wallet::IsWalletFlagSet method (Russell Yanofsky)
Pull request description:
This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/projects/10).
This PR doesn't change behavior at all, it just cleans up code in [`src/interfaces`](https://github.com/bitcoin/bitcoin/tree/master/src/interfaces) to simplify #10102, and [documents](https://github.com/ryanofsky/bitcoin/blob/pr/ipc-conv/doc/developer-notes.md#internal-interface-guidelines) coding conventions there better
ACKs for top commit:
hebasto:
re-ACK 3dc27a15242a22b5301904375e5880372e9b7f4d, the only change since the [previous](https://github.com/bitcoin/bitcoin/pull/18278#pullrequestreview-372582146) review is rebasing.
MarcoFalke:
ACK 3dc27a15242a22b5301904375e5880372e9b7f4d 🕍
Tree-SHA512: 62e6a0f2488e3924e559d2074ed460b92e7a0a5d98eab492221cb20d59d04bbe32aef2a8aeba5e4ea9168cfa91acd5bc973dce6677be0180bd7a919354df53ed
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MultiplicationOverflow(…) fuzzing harness
7c1ac70c01536a8dd5b455f5b268a087cecf10a1 tests: Don't assume presence of __builtin_mul_overflow in MultiplicationOverflow(...) fuzzing harness (practicalswift)
Pull request description:
Don't assume presence of `__builtin_mul_overflow(…)` in `MultiplicationOverflow(…)` fuzzing harness.
Fixes #18389.
ACKs for top commit:
naumenkogs:
ACK 7c1ac70
Tree-SHA512: b6f1040a088088ff7e4f5c038f0f710ca2b515387bac3cd249afe97613641f7f3754f61d73d7233f23b8296115fab5bbf656168624a2cb74909577440a49a359
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MultiplicationOverflow(...) fuzzing harness
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Move output arguments after input arguments for consistency with other methods,
and to work more easily with IPC framework in #10102
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Make output argument last argument so it works more easily with IPC framework
in #10102, and for consistency with other methods
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interfaces methods
This also simplifies #10102 removing overrides needed to deal with inconsistent
case convention
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Avoid overloading method name to work more easily with IPC framework
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Replace by privateKeysDisabled method to avoid need for GUI to reference
internal wallet flags.
Also remove adjacent WalletModel canGetAddresses wrapper that serves no purpose
and make Wallet::canGetAddresses non-const so it can be implemented by IPC
classes in #10102.
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signals
e57980b4738c10344baf136de3e050a3cb958ca5 [mempool] Remove NotifyEntryAdded and NotifyEntryRemoved callbacks (John Newbery)
2dd561f36124972d2364f941de9c3417c65f05b6 [validation] Remove pool member from ConnectTrace (John Newbery)
969b65f3f527631ede1a31c7855151e5c5d91f8f [validation] Remove NotifyEntryRemoved callback from ConnectTrace (John Newbery)
5613f9842b4000fed088b8cf7b99674c328d15e1 [validation] Remove conflictedTxs from PerBlockConnectTrace (John Newbery)
cdb893443cc16edf974f099b8485e04b3db1b1d7 [validation interface] Remove vtxConflicted from BlockConnected (John Newbery)
1168394d759b13af68acec6d5bfa04aaa24561f8 [wallet] Notify conflicted transactions in TransactionRemovedFromMempool (John Newbery)
Pull request description:
These boost signals were added in #9371, before we had a `TransactionRemovedFromMempool` method in the validation interface. The `NotifyEntryAdded` callback was used by validation to build a vector of conflicted transactions when connecting a block, which the wallet was notified of in the `BlockConnected` CValidationInterface callback.
Now that we have a `TransactionRemovedFromMempool` callback, we can fire that signal directly from the mempool for conflicted transactions.
Note that #9371 was implemented to ensure `-walletnotify` events were fired for these conflicted transaction. We inadvertently stopped sending these notifications in #16624 (Sep 2019 commit 7e89994). We should probably fix that, but in a different PR.
ACKs for top commit:
jonatack:
Re-ACK e57980b
ryanofsky:
Code review ACK e57980b4738c10344baf136de3e050a3cb958ca5, no code changes since previous review, but helpful new code comments have been added and the PR description is now more clear about where the old code came from
Tree-SHA512: 3bdbaf1ef2731e788462d4756e69c42a1efdcf168691ce1bbfdaa4b7b55ac3c5b1fd4ab7b90bcdec653703600501b4224d252cfc086aef28f9ce0da3b0563a69
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sysctl() on *BSD takes a "const int *name", whereas sysctl() on macOS
it takes an "int *name". So our configure check and sysctl() detection on
macOS currently fails:
```bash
/usr/include/sys/sysctl.h:759:9: note: candidate function not viable:
no known conversion from 'const int [2]' to 'int *' for 1st argument
int sysctl(int *, u_int, void *, size_t *, void *, size_t);
```
This change removes the name argument from the sysctl() detection check,
meaning we will detect correctly on macOS and *BSD.
For consistency we also switch to using the more generic, non-const
version of the name parameter in the rest of our usage.
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7d8e1dec3b26074df1533f715871f79c956cc224 net: fix use-after-free in tests (Vasil Dimov)
Pull request description:
In PeerLogicValidation::PeerLogicValidation() we would schedule a lambda
function to execute later, capturing the local variable
`consensusParams` by reference.
Presumably this was considered safe because `consensusParams` is a
reference itself to a global variable which is not supposed to change,
but it can in tests.
Fixes https://github.com/bitcoin/bitcoin/issues/18372
<!--
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Pull requests without a rationale and clear improvement may be closed
immediately.
-->
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* Any test improvements or new tests that improve coverage are always welcome.
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functional tests (see `test/`). Contributors should note which tests cover
modified code. If no tests exist for a region of modified code, new tests
should accompany the change.
* Bug fixes are most welcome when they come with steps to reproduce or an
explanation of the potential issue as well as reasoning for the way the bug
was fixed.
* Features are welcome, but might be rejected due to design or scope issues.
If a feature is based on a lot of dependencies, contributors should first
consider building the system outside of Bitcoin Core, if possible.
* Refactoring changes are only accepted if they are required for a feature or
bug fix or otherwise improve developer experience significantly. For example,
most "code style" refactoring changes require a thorough explanation why they
are useful, what downsides they have and why they *significantly* improve
developer experience or avoid serious programming bugs. Note that code style
is often a subjective matter. Unless they are explicitly mentioned to be
preferred in the [developer notes](/doc/developer-notes.md), stylistic code
changes are usually rejected.
-->
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Bitcoin Core has a thorough review process and even the most trivial change
needs to pass a lot of eyes and requires non-zero or even substantial time
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-->
ACKs for top commit:
sipa:
ACK 7d8e1dec3b26074df1533f715871f79c956cc224
practicalswift:
ACK 7d8e1dec3b26074df1533f715871f79c956cc224
MarcoFalke:
ACK 7d8e1dec3b26074df1533f715871f79c956cc224
Tree-SHA512: fe0f6e5fac1976d38dfb249517eef142dcb8837e178d7d199e5e854e3ab428822c6da9d96fe312293d39b6c6cac0c97896f3b5760013db200cccd729ae1b0710
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using a fuzzed signature checker
5e47b19e50cf5a8de77dfe363988522cfd212c06 tests: Add harness which fuzzes EvalScript and VerifyScript using a fuzzed signature checker (practicalswift)
Pull request description:
Add harness which fuzzes `EvalScript` and `VerifyScript` using a fuzzed signature checker.
Test this PR using:
```
$ make distclean
$ ./autogen.sh
$ CC=clang CXX=clang++ ./configure --enable-fuzz \
--with-sanitizers=address,fuzzer,undefined
$ make
$ src/test/fuzz/signature_checker
…
```
Closes #17986.
Top commit has no ACKs.
Tree-SHA512: a9988f8fa7919fe470756ca3e4e75764a589f590769aab452c8f4c254cf41667793e52131d470a12629ec3681fa7fc20091f371b8f3e3eec105674c2769e7d7e
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Change comment from `The reason is that if the number of hashes in the list at a given time
is odd`, to ` The reason is that if the number of hashes in the list at a given level
is odd` (to be a bit more precise)
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In PeerLogicValidation::PeerLogicValidation() we would schedule a lambda
function to execute later, capturing the local variable
`consensusParams` by reference.
Presumably this was considered safe because `consensusParams` is a
reference itself to a global variable which is not supposed to change,
but it can in tests.
Fixes https://github.com/bitcoin/bitcoin/issues/18372
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fa36f3a29538012a6eb5c3402b3b3c18fd32b230 refactor: move DUMP_BANS_INTERVAL to banman.h (MarcoFalke)
fadafb83cff9a9a340eac1b5a853e2467d5e0ef7 scheduler: Make schedule* methods type safe (MarcoFalke)
fa70ccc6c4e304646b4610228f3975b3a9762643 scheduler: Use C++11 member initialization, add shutdown assert (MarcoFalke)
Pull request description:
Main benefit is that stuff like `15 * 60 * 1000` is replaced by `minutes{15}`
ACKs for top commit:
vasild:
ACK fa36f3a (code review, not tested)
ajtowns:
ACK fa36f3a29538012a6eb5c3402b3b3c18fd32b230
jonatack:
ACK fa36f3a
Tree-SHA512: f35f1a1d643dfa676bd47474659f6492ed05cca04cdb556064b126f654a6a44a4b93fcaddcdcd41faf81b8f11439c11e5c7ab88685ba2eef12f7188843d17ad8
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signature checker
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ec30a79f1c430cc7fbda37e5d747b0b31b262fa5 Fix UB with bench on genesis block (Gregory Sanders)
Pull request description:
During the loading of the genesis block, the bench print lines in ConnectTip divide by zero due to early return in ConnectBlock.
ACKs for top commit:
practicalswift:
ACK ec30a79f1c430cc7fbda37e5d747b0b31b262fa5
sipa:
utACK ec30a79f1c430cc7fbda37e5d747b0b31b262fa5
promag:
ACK ec30a79, `nBlocksTotal` is only used in logging.
Tree-SHA512: b3bdbb58d10d002a2293d7f99196b227ed9f4ca8c6cd08981e95cc964be47efed98b91fad276ee6da5cf7e6684610998ace7ce9bace172dd6c51c386d985b83c
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CFeeRate and various functions
44abf417eb1cd8598084eee1a429ca57c7d0579a tests: Add fuzzing harness for various functions taking std::string as input (practicalswift)
d69145acb76ff12b7c5c1e55ce89e14bc6453904 tests: Add fuzzing harness for MultiplicationOverflow(...) (practicalswift)
7726f3bc4671fbc23e5bc31d0eb9fe381e2f07ef tests: Add fuzzing harness for CFeeRate (practicalswift)
0579a276307d22ae62ecbcaa704e8477274e784d tests: Add fuzzing harness for CBlockHeader (practicalswift)
cb4eec13c03089617a94169b4e30381d87788b56 tests: Add fuzzing harness for count_seconds(...) (practicalswift)
Pull request description:
Add fuzzing harnesses for classes `CBlockHeader`, `CFeeRate` and various functions.
To test this PR:
```
$ make distclean
$ ./autogen.sh
$ CC=clang CXX=clang++ ./configure --enable-fuzz \
--with-sanitizers=address,fuzzer,undefined
$ make
$ src/test/fuzz/block_header
^c (ctrl-c)
$ src/test/fuzz/fee_rate
^c (ctrl-c)
$ src/test/fuzz/integer
^c (ctrl-c)
$ src/test/fuzz/multiplication_overflow
^c (ctrl-c)
$ src/test/fuzz/string
^c (ctrl-c)
```
ACKs for top commit:
MarcoFalke:
ACK 44abf417eb1cd8598084eee1a429ca57c7d0579a 🏉
Tree-SHA512: 2b382a7bc8efdcc6dd8b79f1637f194ecdca3e522c6618ae6c4b0bf6f86d2e79b1bb1c7160522083600616d1ed509b2f577f3a512ea3a7825a0a3794578d9d90
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fac52253f81a4f0d04b25eb4b6c28d04b85ef10b rpc: Document an RPCResult for all calls; Enforce at compile time (MarcoFalke)
fadd99f61032c0b75ad9b198eb5d8e307b0518ee rpc: Add missing newline in RPCResult description (MarcoFalke)
Pull request description:
This documents the RPC Result (type and description, if applicable) everywhere it was missing. The patch can be reviewed with the `git diff` option `-W`/`--function-context`.
Also, code won't compile without having an RPCResult documented.
ACKs for top commit:
laanwj:
Lightly tested ACK fac52253f81a4f0d04b25eb4b6c28d04b85ef10b
promag:
Tested ACK fac52253f81a4f0d04b25eb4b6c28d04b85ef10b, built and verified listunspent help output.
Tree-SHA512: af2c1af1432beb944993776026c320814bfaecaf202f47359f5758849096ca7051ec6560395a2cc6678dcc111e7c9cf4917d0f0b221bdcf3ed1642e14d0e5b3c
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fa7fea3654203bf7e7bd504589dd564af7fc749d refactor: Remove mempool global from net (MarcoFalke)
Pull request description:
To increase modularisation and simplify testing, remove the mempool global from net in favour of a mempool member.
This is done in the same way it was done for the connection manager global.
ACKs for top commit:
jnewbery:
code review ACK fa7fea3654203bf7e7bd504589dd564af7fc749d
Tree-SHA512: 0e3e1eefa8d6e46367bc6991d5f36c636b15ae4a3bda99b6fe6715db3240771c3d87943c6eb257d69f31929fa2f1d0973e14fc9d1353a27551dbe746eae36857
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fb15bfd99e6ed705cb6f7c4dcd1b2a6bc68be79e Fix nit in getblockchaininfo (Steven Roose)
Pull request description:
Noticed that the statistics are not always shown.
ACKs for top commit:
laanwj:
ACK fb15bfd99e6ed705cb6f7c4dcd1b2a6bc68be79e
promag:
ACK fb15bfd99e6ed705cb6f7c4dcd1b2a6bc68be79e.
Tree-SHA512: bccbfdff03107d14967f6530eec0bcada7ba8eb16c61b829119533a73f2ead742a0da6a473b7962b15e25cd685c8f155506ab16d4a95b20352d3fd1b4b0164a3
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7df0cf719fecf1b8d09801295db8bd2137bfe033 Replace remaining literals BTC with CURRENCY_UNIT (Daniel Kraft)
Pull request description:
This replaces one remaining instance of the literal `"BTC"` string with the `CURRENCY_UNIT` constant, as is done in most of the codebase already.
After this change, no instance of literal `"BTC"` remains anywhere in the RPC help texts.
ACKs for top commit:
MarcoFalke:
ACK 7df0cf719fecf1b8d09801295db8bd2137bfe033
laanwj:
ACK 7df0cf719fecf1b8d09801295db8bd2137bfe033
Tree-SHA512: 7f7d52b366e084c93a7d6a3c45b1bbfc4f4f50bca6956594077e6d46295977c8cc18499232878869869c73a8ab9a1c41245029ae7425a87cec2ccb0cb52eea13
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686c5456f2fcf7e301907223d16a85f7eb378c6c Fix missing header in sync.h (João Barbosa)
Pull request description:
`std::string` is referenced in `sync.h` but the relevant header is not explicitly included as required by current guideline. Furthermore on osx 10.14.6 with clang-900.0.31 the following error occurs:
```
In file included from threadinterrupt.cpp:6:
In file included from ./threadinterrupt.h:8:
./sync.h:206:21: error: implicit instantiation of undefined template 'std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >'
std::string lockname;
```
ACKs for top commit:
practicalswift:
ACK 686c5456f2fcf7e301907223d16a85f7eb378c6c
laanwj:
ACK 686c5456f2fcf7e301907223d16a85f7eb378c6c
Tree-SHA512: 7c1acdfa5b0dd148d1114e14c9450d5907006e63e1a04e82ed8a1e29757925476e6f8ef6024b0c6d1bb596623115209ad580d5035be1e4785337bd01b738c9f2
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e6e622e5a0e22c2ac1b50b96af818e412d67ac54 Implement O(1) OP_IF/NOTIF/ELSE/ENDIF logic (Pieter Wuille)
d0e8f4d5d8ddaccb37f98b7989fb944081e41ab8 [refactor] interpreter: define interface for vfExec (Anthony Towns)
89fb241c54fc85befacfa3703d8e21bf3b8a76eb Benchmark script verification with 100 nested IFs (Pieter Wuille)
Pull request description:
While investigating what mechanisms are possible to maximize the per-opcode verification cost of scripts, I noticed that the logic for determining whether a particular opcode is to be executed is O(n) in the nesting depth. This issue was also pointed out by Sergio Demian Lerner in https://bitslog.wordpress.com/2017/04/17/new-quadratic-delays-in-bitcoin-scripts/, and this PR implements a variant of the O(1) algorithm suggested there.
This is not a problem currently, because even with a nesting depth of 100 (the maximum possible right now due to the 201 ops limit), the slowdown caused by this on my machine is around 70 ns per opcode (or 0.25 s per block) at worst, far lower than what is possible with other opcodes.
This PR mostly serves as a proof of concept that it's possible to avoid it, which may be relevant in discussions around increasing the opcode limits in future script versions. Without it, the execution time of scripts can grow quadratically with the nesting depth, which very quickly becomes unreasonable.
This improves upon #14245 by completely removing the `vfExec` vector.
ACKs for top commit:
jnewbery:
Code review ACK e6e622e5a0e22c2ac1b50b96af818e412d67ac54
MarcoFalke:
ACK e6e622e5a0e22c2ac1b50b96af818e412d67ac54 🐴
fjahr:
ACK e6e622e5a0e22c2ac1b50b96af818e412d67ac54
ajtowns:
ACK e6e622e5a0e22c2ac1b50b96af818e412d67ac54
laanwj:
concept and code review ACK e6e622e5a0e22c2ac1b50b96af818e412d67ac54
jonatack:
ACK e6e622e5a0e22c2ac1b50b96af818e412d67ac54 code review, build, benches, fuzzing
Tree-SHA512: 1dcfac3411ff04773de461959298a177f951cb5f706caa2734073bcec62224d7cd103767cfeef85cd129813e70c14c74fa8f1e38e4da70ec38a0f615aab1f7f7
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This replaces one remaining instance of the literal "BTC" string with
the CURRENCY_UNIT constant, as is done in most of the codebase already.
The other remaining instance (which is just part of a log message and thus
not really user-visible) is just removed.
After this change, no instance of literal "BTC" remains anywhere in the
non-Qt and non-test codebase.
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09e25071f40c564af08a1386c39c4f2d8eb484b6 Cache parent xpub inside of BIP32PubkeyProvider (Andrew Chow)
deb791c7ba057a3765d09b12bf3e55547a5298e4 Only cache xpubs that have a hardened last step (Andrew Chow)
f76733eda5f4c161e9eb47c74b949582ab8f448a Cache the immediate derivation parent xpub (Andrew Chow)
58f54b686f663e4c46a2cf7a64560409007c7eb3 Add DescriptorCache* read_cache and DescriptorCache* write_cache to Expand and GetPubKey (Andrew Chow)
66c2cadc91d26074b89e5ada68350b5c8676efac Rename BIP32PubkeyProvider.m_extkey to m_root_extkey (Andrew Chow)
df55d44d0de2174ba74ed3a28bef5e83b0a51b47 Track the index of the key expression in PubkeyProvider (Andrew Chow)
474ea3b927ddc67e64ae78e08c20c9264817e84d Introduce DescriptorCache struct which caches xpubs (Andrew Chow)
Pull request description:
Improves the descriptor cache by changing it from a `std::vector<unsigned char>` to a newly introduced `DescriptorCache` class. Instead of serializing pubkeys and whatever else we would want to cache in a way that may not be backwards compatible, we instead create a `DescriptorCache` object and populate it. This object contains only an xpub cache. Since the only `PubkeyProvider` that used the cache is the `BIP32PubkeyProvider` we just have it store the xpubs instead of the pubkeys. This allows us to have both the parent xpub and the child xpubs in the same container. The map is keyed by `KeyOriginInfo`.
Sine we are caching `CExtPubKey`s in `DescriptorCache`, `BIP32PubKeyProviders` can use the cached parent xpubs to derive the children if unhardened derivation is used in the last step. This also means that we can still derive the keys for a `BIP32PubkeyProvider` that has hardened derivation steps. When combined with descriptor wallets, this should allow us to be able to import a descriptor with an `xprv` and hardened steps and still be able to derive from it. In that sense, this is an alternative to #18163
To test that this works, the tests have been updated to do an additional `Expand` at the `i + 1` position. This expansion is not cached. We then do an `ExpandFromCache` at `i + 1` and use the cache that was produced by the expansion at `i`. This way, we won't have the child xpubs for `i + 1` but we will have the parent xpubs. So this checks whether the parent xpubs are being stored and can be used to derive the child keys. Descriptors that have a hardened last step are skipped for this part of the test because that will always require private keys.
ACKs for top commit:
instagibbs:
code review re-re-ACK https://github.com/bitcoin/bitcoin/pull/18204/commits/09e25071f40c564af08a1386c39c4f2d8eb484b6
Sjors:
re-ACK 09e25071f40c564af08a1386c39c4f2d8eb484b6
Tree-SHA512: 95c8d0092274cdf115ce39f6d49dec767679abf3758d5b9e418afc308deca9dc6f67167980195bcc036cd9c09890bbbb39ec1dacffbfacdc03efd72a7e23b276
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c8e24ddce31a8de6255b23c19d958c1cd44a8847 [REFACTOR] Abstract out script execution out of VerifyWitnessProgram() (Pieter Wuille)
Pull request description:
This is a refactoring cherry-picked out of #17977. As it touches consensus code, I don't think this would ordinarily meet the bar for review cost vs benefit. However, it simplifies the changes for Taproot significantly, and if it's going to be necessitated by inclusion of that code, I may as well give it some additional attention by PRing it independently.
ACKs for top commit:
fjahr:
Re-ACK c8e24ddce31a8de6255b23c19d958c1cd44a8847
theStack:
re-ACK https://github.com/bitcoin/bitcoin/commit/c8e24ddce31a8de6255b23c19d958c1cd44a8847
Empact:
Code Review Re-ACK https://github.com/bitcoin/bitcoin/pull/18002/commits/c8e24ddce31a8de6255b23c19d958c1cd44a8847
ajtowns:
ACK c8e24ddce31a8de6255b23c19d958c1cd44a8847
jnewbery:
ACK c8e24ddce31a8de6255b23c19d958c1cd44a8847
jonatack:
ACK c8e24dd
Tree-SHA512: 96c2aa5d2f9c7c802bcc008f5cde55b1dfedfaf42e34101331e6c0d594acdf6437661102dc939718f0877c20451336855dfbaa8aa8f57d9e722a7fa7329e3a46
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