Commit Graph

135 Commits

Author SHA1 Message Date
Ryan Ofsky
ab513103df Merge bitcoin/bitcoin#33192: refactor: unify container presence checks
d9319b06cf refactor: unify container presence checks - non-trivial counts (Lőrinc)
039307554e refactor: unify container presence checks - trivial counts (Lőrinc)
8bb9219b63 refactor: unify container presence checks - find (Lőrinc)

Pull request description:

  ### Summary
  Instead of counting occurrences in sets and maps, the C++20 `::contains` method expresses the intent unambiguously and can return early on first encounter.

  ### Context
  Applied clang‑tidy's [readability‑container‑contains](https://clang.llvm.org/extra/clang-tidy/checks/readability/container-contains.html) check, though many cases required manual changes since tidy couldn't fix them automatically.

  ### Changes
  The changes made here were:

  | From                   | To               |
  |------------------------|------------------|
  | `m.find(k) == m.end()` | `!m.contains(k)` |
  | `m.find(k) != m.end()` | `m.contains(k)`  |
  | `m.count(k)`           | `m.contains(k)`  |
  | `!m.count(k)`          | `!m.contains(k)` |
  | `m.count(k) == 0`      | `!m.contains(k)` |
  | `m.count(k) != 1`      | `!m.contains(k)` |
  | `m.count(k) == 1`      | `m.contains(k)`  |
  | `m.count(k) < 1`       | `!m.contains(k)`  |
  | `m.count(k) > 0`       | `m.contains(k)`  |
  | `m.count(k) != 0`      | `m.contains(k)`  |

  > Note that `== 1`/`!= 1`/`< 1` only apply to simple [maps](https://en.cppreference.com/w/cpp/container/map/contains)/[sets](https://en.cppreference.com/w/cpp/container/set/contains) and had to be changed manually.

  There are many other cases that could have been changed, but we've reverted most of those to reduce conflict with other open PRs.

  -----

  <details>
  <summary>clang-tidy command on Mac</summary>

  ```bash
  rm -rfd build && \
  cmake -B build \
    -DCMAKE_C_COMPILER="$(brew --prefix llvm)/bin/clang" \
    -DCMAKE_CXX_COMPILER="$(brew --prefix llvm)/bin/clang++" \
    -DCMAKE_OSX_SYSROOT="$(xcrun --show-sdk-path)" \
    -DCMAKE_C_FLAGS="-target arm64-apple-macos11" \
    -DCMAKE_CXX_FLAGS="-target arm64-apple-macos11" \
    -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DBUILD_BENCH=ON -DBUILD_FUZZ_BINARY=ON -DBUILD_FOR_FUZZING=ON

   "$(brew --prefix llvm)/bin/run-clang-tidy" -quiet -p build -j$(nproc) -checks='-*,readability-container-contains' | grep -v 'clang-tidy'
  ```

  </details>

  Note: this is a take 2 of https://github.com/bitcoin/bitcoin/pull/33094 with fewer contentious changes.

ACKs for top commit:
  optout21:
    reACK d9319b06cf
  sedited:
    ACK d9319b06cf
  janb84:
    re ACK d9319b06cf
  pablomartin4btc:
    re-ACK d9319b06cf
  ryanofsky:
    Code review ACK d9319b06cf. I manually reviewed the full change, and it seems there are a lot of positive comments about this and no more very significant conflicts, so I will merge it shortly.

Tree-SHA512: e4415221676cfb88413ccc446e5f4369df7a55b6642347277667b973f515c3c8ee5bfa9ee0022479c8de945c89fbc9ff61bd8ba086e70f30298cbc1762610fe1
2025-12-17 16:17:29 -05:00
MarcoFalke
fa89f60e31 scripted-diff: LogPrintLevel(*,BCLog::Level::*,*) -> LogError()/LogWarning()
This is a minimal behavior change and changes log output from:

  [net:error] Something bad happened
  [net:warning] Something problematic happened

to either

  [error] Something bad happened
  [warning] Something problematic happened

or, when -loglevelalways=1 is enabled:

  [all:error] Something bad happened
  [all:warning] Something problematic happened

Such a behavior change is desired, because all warning and error logs
are written in the same style in the source code and they are logged in
the same format for log consumers.

-BEGIN VERIFY SCRIPT-

 sed --regexp-extended --in-place \
   's/LogPrintLevel\((BCLog::[^,]*), BCLog::Level::(Error|Warning), */Log\2(/g' \
   $( git grep -l LogPrintLevel ':(exclude)src/test/logging_tests.cpp' )

-END VERIFY SCRIPT-
2025-12-09 10:44:33 +01:00
MarcoFalke
fa6c7a1954 scripted-diff: LogPrintLevel(*,BCLog::Level::Debug,*) -> LogDebug()
This refactor does not change behavior.

-BEGIN VERIFY SCRIPT-

 sed --regexp-extended --in-place \
   's/LogPrintLevel\((BCLog::[^,]*), BCLog::Level::Debug,/LogDebug(\1,/g' \
   $( git grep -l LogPrintLevel ':(exclude)src/test/logging_tests.cpp' )

-END VERIFY SCRIPT-
2025-12-09 10:44:29 +01:00
MarcoFalke
fa05181d90 scripted-diff: LogPrintf -> LogInfo
This refactor does not change behavior.

-BEGIN VERIFY SCRIPT-

 sed --in-place 's/\<LogPrintf\>/LogInfo/g' \
   $( git grep -l '\<LogPrintf\>' -- ./contrib/ ./src/ ./test/ ':(exclude)src/logging.h' )

-END VERIFY SCRIPT-
2025-12-04 19:52:49 +01:00
Lőrinc
039307554e refactor: unify container presence checks - trivial counts
The changes made here were:

| From              | To               |
|-------------------|------------------|
| `m.count(k)`      | `m.contains(k)`  |
| `!m.count(k)`     | `!m.contains(k)` |
| `m.count(k) == 0` | `!m.contains(k)` |
| `m.count(k) != 0` | `m.contains(k)`  |
| `m.count(k) > 0`  | `m.contains(k)`  |

The commit contains the trivial, mechanical refactors where it doesn't matter if the container can have multiple elements or not

Co-authored-by: Jan B <608446+janb84@users.noreply.github.com>
2025-12-03 13:36:58 +01:00
Lőrinc
8bb9219b63 refactor: unify container presence checks - find
The changes made here were:

| From                   | To               |
|------------------------|------------------|
| `m.find(k) == m.end()` | `!m.contains(k)` |
| `m.find(k) != m.end()` | `m.contains(k)`  |
2025-12-03 13:31:11 +01:00
MarcoFalke
fa45a1503e log: Use LogWarning for non-critical logs
As per doc/developer-notes#logging, LogWarning should be used for severe
problems that do not warrant shutting down the node
2025-11-27 14:33:59 +01:00
Hennadii Stepanov
3bb30658e6 Merge bitcoin/bitcoin#32380: Modernize use of UTF-8 in Windows code
53e4951a5b Switch to ANSI Windows API in `fsbridge::fopen()` function (Hennadii Stepanov)
dbe770d921 Switch to ANSI Windows API in `Win32ErrorString()` function (Hennadii Stepanov)
06d0be4e22 Remove no longer necessary `WinCmdLineArgs` class (Hennadii Stepanov)
f366408492 cmake: Set process code page to UTF-8 on Windows (Hennadii Stepanov)
dccbb17806 Set minimum supported Windows version to 1903 (May 2019 Update) (Hennadii Stepanov)

Pull request description:

  The main goal is to remove [deprecated](https://github.com/bitcoin/bitcoin/issues/32361) code (removed in C++26).

  This PR employs Microsoft's modern [approach](https://learn.microsoft.com/en-us/windows/apps/design/globalizing/use-utf8-code-page) to handling UTF-8:
  > Until recently, Windows has emphasized "Unicode" -W variants over -A APIs. However, recent releases have used the ANSI code page and -A APIs as a means to introduce UTF-8 support to apps. If the ANSI code page is configured for UTF-8, then -A APIs typically operate in UTF-8. This model has the benefit of supporting existing code built with -A APIs without any code changes.

  TODO:
  - [x] Handle application manifests properly when building with MSVC.
  - [x] Bump the minimum supported Windows version to 1903 (May 2019 Update).
  - [x] Remove all remaining use cases of the deprecated `std:wstring_convert`.
      - The instance in `subprocess.h` will be addressed in a follow-up PR, as additional tests are likely needed.
      - The usage in `common/system.cpp` is handled in https://github.com/bitcoin/bitcoin/pull/32566.

  Resolves partially https://github.com/bitcoin/bitcoin/issues/32361.

ACKs for top commit:
  laanwj:
    re-ACK 53e4951a5b
  hodlinator:
    re-ACK 53e4951a5b
  davidgumberg:
    untested crACK 53e4951a5b

Tree-SHA512: 0dbe9badca8b979ac2b4814fea6e4a7e53c423a1c96cb76ce894253137d3640a87631a5b22b9645e8f0c2a36a107122eb19ed8e92978c17384ffa8b9ab9993b5
2025-10-28 22:41:07 +00:00
ismaelsadeeq
06db08a435 fees: refactor: rename fees to block_policy_estimator
- Also move it to policy/fees and update the includes
2025-10-27 10:41:02 +01:00
Ava Chow
c6c4edf324 Merge bitcoin/bitcoin#32983: rpc: refactor: use string_view in Arg/MaybeArg
b63428ac9c rpc: refactor: use more (Maybe)Arg<std::string_view> (stickies-v)
037830ca0d refactor: increase string_view usage (stickies-v)
b3bf18f0ba rpc: refactor: use string_view in Arg/MaybeArg (stickies-v)

Pull request description:

  The `RPCHelpMan::{Arg,MaybeArg}` helpers avoid copying (potentially) large strings by returning them as `const std::string*` (`MaybeArg`) or `const std::string&` (`Arg`). For `MaybeArg`, this has the not-so-nice effect that users need to deal with raw pointers, potentially also requiring new functions (e.g. [`EnsureUniqueWalletName` ](d127b25199 (diff-d8bfcfbdd5fa7d5c52d38c1fe5eeac9ce5c5a794cdfaf683585140fa70a32374R32))) with raw pointers being implemented.

  This PR aims to improve on this by returning a trivially copyable `std::string_view` (`Arg`) or `std::optional<std::string_view>` (`MaybeArg`), modernizing the interface without introducing any additional copying overhead. In doing so, it also generalizes whether we return by value or by pointer/reference using `std::is_trivially_copyable_v` instead of defining the types manually.

  In cases where functions currently take a `const std::string&` and it would be too much work / touching consensus logic to update them (`signmessage.cpp`), a `std::string` copy is made (which was already happening anyway).

  The last 2 commits increase usage of the `{Arg,MaybeArg}<std::string_view>` helpers, and could be dropped/pruned if anything turns out to be controversial - I just think it's a nice little cleanup.

ACKs for top commit:
  maflcko:
    re-ACK b63428ac9c 🎉
  achow101:
    ACK b63428ac9c
  pablomartin4btc:
    re-ACK [b63428a](b63428ac9c)
  w0xlt:
    reACK b63428ac9c

Tree-SHA512: b4942c353a1658c22a88d8c9b402c288ad35265a3b88aa2072b1f9b6d921cd073194ed4b00b807cb48ca440f47c87ef3d8e0dd1a5d814be58fc7743f26288277
2025-10-24 10:33:51 -07:00
Hennadii Stepanov
06d0be4e22 Remove no longer necessary WinCmdLineArgs class
This change removes one use case of `std::wstring_convert`, which is
deprecated in C++17 and removed in C++26. Other uses remain for now.
2025-10-06 19:41:35 +01:00
Hennadii Stepanov
f366408492 cmake: Set process code page to UTF-8 on Windows
Additionally, this change adds app manifests to targets that were
previously missing them.
2025-10-06 19:41:35 +01:00
Ryan Ofsky
c864a4c194 Simplify fs::path by dropping filename() and make_preferred() overloads
These overloads were needed to allow passing `fs::path` objects directly to
libstdc++'s `fstream` constructors, but after the previous commit, there is no
longer any remaining code that does pass `fs::path` objects to `fstream`
constructors. Writing new code which does this is also discouraged because the
standard has been updated in https://wg21.link/lwg3430 to disallow it.

Dropping these also means its no longer possible to pass `fs::path` arguments
directly to `fstream::open` in libstdc++, which is somewhat unfortunate but not
a big loss because it is already not possible to pass them to the constructor.
So this commit updates `fstream::open` calls.

Additionally, this change required updates to src/bitcoin.cpp since it was
relying on the overloaded filename() method.
2025-10-06 12:14:02 -04:00
Ryan Ofsky
b0113afd44 Fix windows libc++ fs::path fstream compile errors
As reported by hebasto in https://github.com/bitcoin/bitcoin/issues/33545,
newer libc++ versions implementing https://wg21.link/lwg3430 will no longer
implicitly convert `fs::path` objects to `std::filesystem::path` objects when
constructing `std::ifstream` and `std::ofstream` types.

This is not a problem in Unix systems since `fs::path` objects use
`std::string` as their native string type, but it causes compile errors on
Windows which use `std::wstring` as their string type, since `fstream`s can't
be constructed from `wstring`s.

Fix the windows libc++ compile errors by adding a new `fs::path::std_path()`
method and using it construct `fstream`s more portably.

Additionally, delete `fs::path`'s implicit `native_string` conversion so these
errors will not go undetected in the future, even though there is not currently
a CI job testing Windows libc++ builds.
2025-10-06 11:25:56 -04:00
stickies-v
037830ca0d refactor: increase string_view usage
Update select functions that take a const std::string& to take a
std::string_view instead. In a next commit, this allows us to use
the {Arg,MaybeArg}<std::string_view> helper.
2025-10-02 12:53:55 +01:00
Ava Chow
31b29f8eb6 Merge bitcoin/bitcoin#33229: multiprocess: Don't require bitcoin -m argument when IPC options are used
453b0fa286 bitcoin: Make wrapper not require -m (Ryan Ofsky)
29e836fae6 test: add tool_bitcoin to test bitcoin wrapper behavior (Ryan Ofsky)
0972f55040 init: add exe name to bitcoind, bitcoin-node -version output to be able to distinguish these in tests (Ryan Ofsky)

Pull request description:

  This change makes the `bitcoin` command respect IPC command line options and _bitcoin.conf_ settings, so IPC listening can be enabled by just running `bitcoin node -ipcbind=unix` or `bitcoin node` with `ipcbind=unix` in the configuration file, and there is no longer a need to specify a multiprocess `-m` option like `bitcoin -m node [...]`

  sipa and theuni in #31802 pointed out that users shouldn't be exposed to multiprocess implementation details just to use IPC features, so current need to specify the `bitcoin -m` option in conjunction with `-ipcbind` could be seen as a design mistake and not just a usage inconvenience.

  This PR also adds a dedicated functional test for the `bitcoin` wrapper command and to make sure it calls the right binaries and test the new functionality.

  ---

  This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/issues/28722).

ACKs for top commit:
  Sjors:
    re-ACK 453b0fa286
  achow101:
    ACK 453b0fa286
  TheCharlatan:
    Re-ACK 453b0fa286

Tree-SHA512: 9e49cb7e183fd220fa7a4e8ac68cef55f3cb2ccec40ad2a9d3e3f31db64c4953db8337f8caf7fce877bc97002ae97568dcf47ee269a06ca1f503f119bfe392c1
2025-09-25 14:36:40 -07:00
Vasil Dimov
337a6e7386 system: improve handling around GetTotalRAM()
This patch achieves two things:
1. Fix unused variable warning (https://github.com/bitcoin/bitcoin/pull/33333#discussion_r2362493046)
2. Enable GetTotalRAM() on other platforms where it was tested to work.

Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
2025-09-22 12:24:49 +02:00
Lőrinc
6c720459be system: add helper for fetching total system memory
Added a minimal system helper to query total physical RAM on [Linux/macOS/Windows](https://stackoverflow.com/a/2513561) (on other platforms we just return an empty optional).

The added test checks if the value is roughly correct by checking if the CI platforms are returning any value and if the value is at least 1 GiB and not more than 10 TiB.

The max value is only validated on 64 bits, since it's not unreasonable for 32 bits to have max memory, but on 64 bits it's likely an error.

https://learn.microsoft.com/en-us/windows/win32/api/sysinfoapi/ns-sysinfoapi-memorystatusex
> ullTotalPhys The amount of actual physical memory, in bytes.

https://man7.org/linux/man-pages/man3/sysconf.3.html:
> _SC_PHYS_PAGES The number of pages of physical memory. Note that it is possible for the product of this value and the value of _SC_PAGESIZE to overflow.
> _SC_PAGESIZE Size of a page in bytes. Must not be less than 1.

See https://godbolt.org/z/ec81Tjvrj for further details
2025-09-17 11:36:21 -07:00
Ryan Ofsky
453b0fa286 bitcoin: Make wrapper not require -m
Choose the right binary by default if an IPC option is specified
2025-09-17 04:57:09 -04:00
Ava Chow
cb825a07ac Merge bitcoin/bitcoin#33338: net: Add interrupt to pcp retry loop
188de70c86 net: Add interrupt to pcp retry loop (TheCharlatan)

Pull request description:

  Without this interrupt bitcoind takes a long time to exit if requested to do so after a failed pcp lookup on startup.

ACKs for top commit:
  achow101:
    ACK 188de70c86
  fjahr:
    utACK 188de70c86
  hodlinator:
    utACK 188de70c86

Tree-SHA512: 426dabd10ac0ef5de246c83d281ba70957e4032d251054aa6028b4d7ce4e35cd35ac70e67dc07bd418673bcdd2f4457b76f174ac5e7d0dd3caa05de5da952dac
2025-09-08 13:44:44 -07:00
TheCharlatan
188de70c86 net: Add interrupt to pcp retry loop
Without this interrupt bitcoind takes a long time to exit if requested
to do so after a failed pcp lookup on startup.
2025-09-08 11:18:51 +02:00
laanwj
4f1a4cbccd net: Quiet down logging when router doesn't support natpmp/pcp
When the router doesn't support natpmp and PCP, one'd normally expect
the UDP packet to be ignored, and hit a time out. This logs a warning
that is already in the debug category. However, there's also the case in
which sending an UDP packet causes a ICMP response. This is returned to
user space as "connection refused" (despite UDP having no concept of
connections).

Move the warnings from `Send` and `Recv` to debug level too, to reduce
log spam in that case.

Closes #33301.
2025-09-04 21:26:29 +02:00
merge-script
2562fe1b2b Merge bitcoin/bitcoin#32159: net, pcp: handle multi-part responses and filter for default route while querying default gateway
88db09bafe net: handle multi-part netlink responses (willcl-ark)
42e99ad773 net: skip non-route netlink responses (willcl-ark)
57ce645f05 net: filter for default routes in netlink responses (willcl-ark)

Pull request description:

  ...for default route in pcp pinholing.

  Currently we only make a single recv call, which trucates results from large routing tables, or in the case the kernel may split the message into multiple responses (which may happen with `NLM_F_DUMP`).

  We also do not filter on the default route. For IPv6, this led to selecting the first route with an `RTA_GATEWAY` attribute, often a non-default route instead of the actual default. This caused PCP port mapping failures because the wrong gateway was used.

  Fix both issues by adding multi-part handling of responses and filter for the default route.

  Limit responses to ~ 1MB to prevent any router-based DoS.

ACKs for top commit:
  achow101:
    ACK 88db09bafe
  davidgumberg:
    Code Review re-ACK 88db09b
  Sjors:
    re-utACK 88db09bafe

Tree-SHA512: ea5948edebfad5896a487a61737aa5af99f529fad3cf3da68dced456266948238a7143383847e79a7bb90134e023eb173c25116d8eb80ff57fa4c4a0377ca1ed
2025-09-04 11:06:48 +01:00
willcl-ark
88db09bafe net: handle multi-part netlink responses
Handle multi-part netlink responses to prevent truncated results from
large routing tables.

Previously, we only made a single recv call, which led to incomplete
results when the kernel split the message into multiple responses (which
happens frequently with NLM_F_DUMP).

Also guard against a potential hanging issue where the code would
indefinitely wait for NLMSG_DONE for non-multi-part responses by
detecting the NLM_F_MULTI flag and only continue waiting when necessary.
2025-09-03 21:09:39 +01:00
merge-script
f58de8749e Merge bitcoin/bitcoin#32345: ipc: Handle unclean shutdowns better
2581258ec2 ipc: Handle bitcoin-wallet disconnections (Ryan Ofsky)
2160995916 ipc: Add Ctrl-C handler for spawned subprocesses (Ryan Ofsky)
0c28068ceb doc: Improve IPC interface comments (Ryan Ofsky)
7f65aac78b ipc: Avoid waiting for clients to disconnect when shutting down (Ryan Ofsky)
6eb09fd614 test: Add unit test coverage for Init and Shutdown code (Ryan Ofsky)
9a9fb19536 ipc: Use EventLoopRef instead of addClient/removeClient (Ryan Ofsky)
e886c65b6b Squashed 'src/ipc/libmultiprocess/' changes from 27c7e8e5a581..b4120d34bad2 (Ryan Ofsky)

Pull request description:

  This PR fixes various problems when IPC connections are broken or hang which were reported in https://github.com/bitcoin-core/libmultiprocess/issues/123, https://github.com/bitcoin-core/libmultiprocess/issues/176, and https://github.com/bitcoin-core/libmultiprocess/pull/182. The different fixes are described in commit messages.

  ---

  The first two commits of this PR update the libmultiprocess subtree including the following PRs:

  - https://github.com/bitcoin-core/libmultiprocess/pull/181
  - https://github.com/bitcoin-core/libmultiprocess/pull/179
  - https://github.com/bitcoin-core/libmultiprocess/pull/160
  - https://github.com/bitcoin-core/libmultiprocess/pull/184
  - https://github.com/bitcoin-core/libmultiprocess/pull/187
  - https://github.com/bitcoin-core/libmultiprocess/pull/186
  - https://github.com/bitcoin-core/libmultiprocess/pull/192

  The subtree changes can be verified by running `test/lint/git-subtree-check.sh src/ipc/libmultiprocess` as described in [developer notes](https://github.com/bitcoin/bitcoin/blob/master/doc/developer-notes.md#subtrees) and [lint instructions](https://github.com/bitcoin/bitcoin/tree/master/test/lint#git-subtree-checksh).

  The remaining commits are:

  - [`9a9fb19536fa` ipc: Use EventLoopRef instead of addClient/removeClient](9a9fb19536)
  - [`6eb09fd6141f` test: Add unit test coverage for Init and Shutdown code](6eb09fd614)
  - [`7f65aac78b95` ipc: Avoid waiting for clients to disconnect when shutting down](7f65aac78b)
  - [`0c28068ceb7b` doc: Improve IPC interface comments](0c28068ceb)
  - [`216099591632` ipc: Add Ctrl-C handler for spawned subprocesses](2160995916)
  - [`2581258ec200` ipc: Handle bitcoin-wallet disconnections](2581258ec2)

  The new commits depend on the subtree update, and because the subtree update includes an incompatible API change, the "Use EventLoopRef" commit needs to be part of the same PR to avoid breaking the build. The other commits also make sense to merge at the same time because the bitcoin & libmultiprocess changes were written and tested together.

  ---

  This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/issues/28722).

ACKs for top commit:
  Sjors:
    re-utACK 2581258ec2
  josibake:
    code review ACK 2581258ec2
  pinheadmz:
    re-ACK 2581258ec2

Tree-SHA512: 0095aa22d507803e2a2d46eff51fb6caf965cc0c97ccfa615bd97805d5d51e66a5b4b040640deb92896438b1fb9f6879847124c9d0e120283287bfce37b8d748
2025-08-18 20:19:19 +01:00
Ryan Ofsky
6eb09fd614 test: Add unit test coverage for Init and Shutdown code
Currently this code is not called in unit tests. Calling should make it
possible to write tests for things like IPC exceptions being thrown during
shutdown.
2025-08-04 13:38:26 -04:00
Ava Chow
547c64814d Merge bitcoin/bitcoin#32987: init: [gui] Avoid UB/crash in InitAndLoadChainstate
fac90e5261 test: Check that the GUI interactive reindex works (MarcoFalke)
faaaddaaf8 init: [gui] Avoid UB/crash in InitAndLoadChainstate (MarcoFalke)

Pull request description:

  `InitAndLoadChainstate` is problematic, when called twice in the GUI. This can happen when it returns a failure and the user selects an interactive reindex.

  There are several bugs that have been introduced since the last time this was working correctly:

  * The first one is a crash (assertion failure), which happens due to a cached tip block in the notifiications from the previous run. See https://github.com/bitcoin/bitcoin/pull/31346#discussion_r2207914726
  * The second one is UB (use-after-free), which happens because the block index db in the blockmanager is not reset. See https://github.com/bitcoin/bitcoin/pull/30965#discussion_r2207822121

  Fix both bugs by resetting any dirty state in `InitAndLoadChainstate`.

  Also, add a test, because I don't really want to keep testing this manually every time. (A failing test run can be seen in https://github.com/bitcoin/bitcoin/pull/32979/checks)

ACKs for top commit:
  achow101:
    ACK fac90e5261
  TheCharlatan:
    ACK fac90e5261
  mzumsande:
    Tested ACK fac90e5261

Tree-SHA512: 9f744d36e7cdd3f5871764386ec5a5cca1ae144f1bacc26c07e60313c2bdacdc5fca351aa185cb51359540eea4534dda17e4fb6073ad90f91ba0a6936faeead8
2025-07-30 13:55:01 -07:00
merge-script
75a5c8258e Merge bitcoin/bitcoin#33063: util: Revert "common: Close non-std fds before exec in RunCommandJSON"
faa1c3e80d Revert "Merge bitcoin/bitcoin#32343: common: Close non-std fds before exec in RunCommandJSON" (MarcoFalke)

Pull request description:

  After a fork() in a multithreaded program, the child can safely
  call only async-signal-safe functions (see [signal-safety(7)](https://www.man7.org/linux/man-pages/man7/signal-safety.7.html))
  until such time as it calls execv.

  The standard library (`std` namespace) is not async-signal-safe. Also, `throw`, isn't.

  There was an alternative implementation using `readdir` (https://github.com/bitcoin/bitcoin/pull/32529), but that isn't async-signal-safe either, and that implementation was still using `throw`.

  So temporarily revert this feature.

  A follow-up in the future can add it back, using only async-signal-safe functions, or by using a different approach.

  Fixes https://github.com/bitcoin/bitcoin/issues/32524
  Fixes https://github.com/bitcoin/bitcoin/issues/33015
  Fixes https://github.com/bitcoin/bitcoin/issues/32855

  For reference, a failure can manifest in the GCC debug mode:

  * While `fork`ing, a debug mode mutex is held (by any other thread).
  * The `fork`ed child tries to use the stdard libary before `execv` and deadlocks.

  This may look like the following:

  ```
  (gdb) thread apply all bt

  Thread 1 (Thread 0xf58f4b40 (LWP 774911) "b-httpworker.2"):
  #0  0xf7f4f589 in __kernel_vsyscall ()
  #1  0xf79e467e in ?? () from /lib32/libc.so.6
  #2  0xf79eb582 in pthread_mutex_lock () from /lib32/libc.so.6
  #3  0xf7d93bf2 in ?? () from /lib32/libstdc++.so.6
  #4  0xf7d93f36 in __gnu_debug::_Safe_iterator_base::_M_attach(__gnu_debug::_Safe_sequence_base*, bool) () from /lib32/libstdc++.so.6
  #5  0x5668810a in __gnu_debug::_Safe_iterator_base::_Safe_iterator_base (this=0xf58f13ac, __seq=0xf58f13f8, __constant=false) at /bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/debug/safe_base.h:91
  #6  0x56ddfb50 in __gnu_debug::_Safe_iterator<__gnu_cxx::__normal_iterator<int*, std::__cxx1998::vector<int, std::allocator<int> > >, std::__debug::vector<int, std::allocator<int> >, std::forward_iterator_tag>::_Safe_iterator (this=0xf58f13a8, __i=3, __seq=0xf58f13f8) at /bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/debug/safe_iterator.h:162
  #7  0x56ddfacb in __gnu_debug::_Safe_iterator<__gnu_cxx::__normal_iterator<int*, std::__cxx1998::vector<int, std::allocator<int> > >, std::__debug::vector<int, std::allocator<int> >, std::bidirectional_iterator_tag>::_Safe_iterator (this=0xf58f13a8, __i=3, __seq=0xf58f13f8) at /bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/debug/safe_iterator.h:539
  #8  0x56ddfa5b in __gnu_debug::_Safe_iterator<__gnu_cxx::__normal_iterator<int*, std::__cxx1998::vector<int, std::allocator<int> > >, std::__debug::vector<int, std::allocator<int> >, std::random_access_iterator_tag>::_Safe_iterator (this=0xf58f13a8, __i=3, __seq=0xf58f13f8) at /bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/debug/safe_iterator.h:687
  #9  0x56ddd3f6 in std::__debug::vector<int, std::allocator<int> >::begin (this=0xf58f13f8) at /bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/debug/vector:300
  #10 0x57d83701 in subprocess::detail::Child::execute_child (this=0xf58f156c) at ./util/subprocess.h:1372
  #11 0x57d80a7c in subprocess::Popen::execute_process (this=0xf58f1cd8) at ./util/subprocess.h:1231
  #12 0x57d6d2b4 in subprocess::Popen::Popen<subprocess::input, subprocess::output, subprocess::error, subprocess::close_fds> (this=0xf58f1cd8, cmd_args="fake.py enumerate", args=..., args=..., args=..., args=...) at ./util/subprocess.h:964
  #13 0x57d6b597 in RunCommandParseJSON (str_command="fake.py enumerate", str_std_in="") at ./common/run_command.cpp:27
  #14 0x57a90547 in ExternalSigner::Enumerate (command="fake.py", signers=std::__debug::vector of length 0, capacity 0, chain="regtest") at ./external_signer.cpp:28
  #15 0x56defdab in enumeratesigners()::$_0::operator()(RPCHelpMan const&, JSONRPCRequest const&) const (this=0xf58f2ba0, self=..., request=...) at ./rpc/external_signer.cpp:51
  ...
  (truncated, only one thread exists)
  ```

ACKs for top commit:
  fanquake:
    ACK faa1c3e80d
  darosior:
    ACK faa1c3e80d

Tree-SHA512: 602da5f2eba08d7fe01ba19baf411e287ae27fe2d4b82f41734e05b7b1d938ce94cc0041e86ba677284fa92838e96ebee687023ff28047e2b036fd9a53567e0a
2025-07-26 10:20:58 +01:00
MarcoFalke
faa1c3e80d Revert "Merge bitcoin/bitcoin#32343: common: Close non-std fds before exec in RunCommandJSON"
This reverts commit 31d3eebfb9, reversing
changes made to 4b26ca0e2f.
2025-07-25 15:30:42 +02:00
MarcoFalke
fac90e5261 test: Check that the GUI interactive reindex works 2025-07-17 20:20:00 +02:00
Ava Chow
5757de4ddd Merge bitcoin/bitcoin#32673: clang-tidy: Apply modernize-deprecated-headers
fa9ca13f35 refactor: Sort includes of touched source files (MarcoFalke)
facb152697 scripted-diff: Bump copyright headers after include changes (MarcoFalke)
fae71d30f7 clang-tidy: Apply modernize-deprecated-headers (MarcoFalke)

Pull request description:

  Bitcoin Core is written in C++, so it is confusing to sometimes use the deprecated C headers (with the `.h` extension). For example, it is less clear whether `string.h` refers to the file in this repo or the cstring stdlib header (https://github.com/bitcoin/bitcoin/pull/31308#discussion_r2121492797).

  The check is currently disabled for headers, to exclude subtree headers.

ACKs for top commit:
  l0rinc:
    ACK fa9ca13f35
  achow101:
    ACK fa9ca13f35
  janb84:
    ACK fa9ca13f35
  stickies-v:
    ACK fa9ca13f35

Tree-SHA512: 6639608308c598d612e24435aa519afe92d71b955874b87e527245291fb874b67f3ab95d3a0a5125c6adce5eb41c0d62f6ca488fbbfd60a94f2063d734173f4d
2025-06-11 15:08:23 -07:00
MarcoFalke
fa9ca13f35 refactor: Sort includes of touched source files 2025-06-03 19:56:55 +02:00
MarcoFalke
facb152697 scripted-diff: Bump copyright headers after include changes
Historically, the headers have been bumped some time after a file has
been touched. Do it now to avoid having to touch them again in the
future for that reason.

-BEGIN VERIFY SCRIPT-
 sed -i --regexp-extended 's;( 20[0-2][0-9])(-20[0-2][0-9])? The Bitcoin Core developers;\1-present The Bitcoin Core developers;g' $( git show --pretty="" --name-only HEAD~0 )
-END VERIFY SCRIPT-
2025-06-03 15:13:57 +02:00
MarcoFalke
fae71d30f7 clang-tidy: Apply modernize-deprecated-headers
This can be reproduced according to the developer notes with something
like

( cd ./src/ && ../contrib/devtools/run-clang-tidy.py -p ../bld-cmake -fix -j $(nproc) )

Also, the header related changes were done manually.
2025-06-03 15:13:54 +02:00
fanquake
e50312eab0 doc: fix typos
Co-authored-by: Ragnar <rodiondenmark@gmail.com>
Co-authored-by: VolodymyrBg <aqdrgg19@gmail.com>
2025-06-03 08:09:28 +01:00
merge-script
ec81204694 Merge bitcoin/bitcoin#31622: psbt: add non-default sighash types to PSBTs and unify sighash type match checking
ee045b61ef rpc, psbt: Require sighashes match for descriptorprocesspsbt (Ava Chow)
2b7682c372 psbt: use sighash type field to determine whether to remove non-witness utxos (Ava Chow)
28781b5f06 psbt: Add sighash types to PSBT when not DEFAULT or ALL (Ava Chow)
15ce1bd73f psbt: Enforce sighash type of signatures matches psbt (Ava Chow)
1f71cd337a wallet: Remove sighash type enforcement from FillPSBT (Ava Chow)
4c7d767e49 psbt: Check sighash types in SignPSBTInput and take sighash as optional (Ava Chow)
a118256948 script: Add IsPayToTaproot() (Ava Chow)
d6001dcd4a wallet: change FillPSBT to take sighash as optional (Ava Chow)
e58b680923 psbt: Return PSBTError from SignPSBTInput (Ava Chow)
2adfd81532 tests: Test PSBT sighash type mismatch (Ava Chow)
5a5d26d612 psbt: Require ECDSA signatures to be validly encoded (Ava Chow)

Pull request description:

  Currently, we do not add the sighash field to PSBTs at all, even when we have signed with a non-default sighash. This PR changes the behavior such that when we (attempt to) sign with a sighash other than DEFAULT or ALL, the sighash type field will be added to the PSBT to inform the later signers that a different sighash type was used by a signer. Notably, this is necessary for MuSig2 support as all signers must sign using the same sighash type, but the sighash is not provided in partial signatures.

  Furthermore, because the sighash type can also be provided on the command line, we require that if both a command line sighash type and the sighash field is present, they must specify the same sighash type. However, this was being checked by the wallet, rather than the signing code, so the `descriptorprocesspsbt` RPC was not enforcing this restriction at all, and in fact ignored the sighash field entirely. This PR refactors the checking code so that the underlying PSBT signing function `SignPSBTInput` does the check.

ACKs for top commit:
  theStack:
    re-ACK ee045b61ef
  rkrux:
    re-ACK ee045b61ef
  fjahr:
    Code review ACK ee045b61ef

Tree-SHA512: 4ead5be1ef6756251b827f594beba868a145d75bf7f4ef6f15ad21f0ae4b8d71b38c83494e5a6b75f37fadd097178cddd93d614b962a2c72fc134f00ba2f74ae
2025-05-21 10:02:49 +01:00
fanquake
7193245cd6 doc: remove For ... comments
We don't add or maintain these, and they are of little value, as
well as having the effect of polluting diffs.

They are also wrong, i.e DEFAULT_SCRIPTCHECK_THREADS is not in
validation.h.
2025-05-19 16:40:33 +01:00
Ava Chow
31d3eebfb9 Merge bitcoin/bitcoin#32343: common: Close non-std fds before exec in RunCommandJSON
a0eed55398 run_command: Enable close_fds option to avoid lingering fds (Luke Dashjr)
c7c356a448 cpp-subprocess: Iterate through /proc/self/fd for close_fds option on Linux (Luke Dashjr)
4f5e04da13 Revert "remove unneeded close_fds option from cpp-subprocess" (Luke Dashjr)

Pull request description:

  Picks up stale #30756, while addressing my fallback comment (https://github.com/bitcoin/bitcoin/pull/30756#discussion_r2030844440).

  > Currently, RunCommandParseJSON runs its target with whatever fds happen to be open inherited on POSIX platforms. I don't think there's any practical scenario where this is a problem right now, but there's a lot of potential for weird problems (eg, if a process manages to outlive bitcoind - perhaps it's hanging - the listening port(s) won't get released and starting bitcoind again will fail). It's also a potential security issue if a child process is intended to be sandboxed at some point. Not to mention plain ugly :)
  >
  > cpp-subprocess has a feature to address this called close_fds. Not sure why it was removed in https://github.com/bitcoin/bitcoin/pull/29961 rather than fixing this during the migration, but this PR restores it, enables it for RunCommandParseJSON, and optimises it by iterating over /proc/self/fd/ like most other libraries do these days ([eg, glib]> (487b1fd20c/glib/gspawn.c (L1094))) since iterating all possible fd numbers [has been found to be problematic](https://bugzilla.redhat.com/show_bug.cgi?id=1537564).
  >
  > (Equivalent to https://github.com/bitcoin/bitcoin/pull/22417 was for boost::process)

ACKs for top commit:
  achow101:
    ACK a0eed55398
  hebasto:
    ACK a0eed55398, tested on Ubuntu 25.04:
  vasild:
    ACK a0eed55398

Tree-SHA512: 7dc1cb6cc1f45ff7c4f53512e400baad1a033b4ebf14ba6f6ffa38588314932d6d01ef67b197f081e8202bb802659ac6a87998277797721d6d7b20efde8e9a6b
2025-05-14 16:13:59 -07:00
Ava Chow
e58b680923 psbt: Return PSBTError from SignPSBTInput
SignPSBTInput will need to report the specific things that caused an
error to callers, so change it to return a PSBTError. Additionally some
callers will now check the return value and report an error to the user.

Currently, this should not change any behavior as the things that
SignPBSTInput will error on are all first checked by its callers.
2025-05-14 14:00:43 -07:00
fanquake
ab878a7e74 build: simplify *ifaddr handling
We really just want to skip this when building for Windows. So do that,
and remove the two header checks (we also already use both of these
headers, unguarded, in the !windows part of the codebase).

Squash the two *iffaddrs defines into one, as I haven't seen an
iffaddrs.h that implements one, but not the other.
2025-05-08 16:49:58 +01:00
Luke Dashjr
a0eed55398 run_command: Enable close_fds option to avoid lingering fds 2025-05-01 11:18:04 +02:00
Ava Chow
0ed5f37afe Merge bitcoin/bitcoin#31014: net: Use GetAdaptersAddresses to get local addresses on Windows
b9d4d5f66a net: Use GetAdaptersAddresses to get local addresses on Windows (laanwj)

Pull request description:

  Instead of a `gethostname` hack, which is not guaranteed to return all addresses, use the official way of calling `GetAdaptersAddresses` to get local network addresses on Windows.

  Do the same checks as the UNIX path: interface is up, interface is not loopback.

  Suggested by Ava Chow.

  Addiional changes:

  - Cleanup: move out `FromSockAddr` in `netif.cpp` from MacOS and use it everywhere appropriate. This avoids code duplication.

ACKs for top commit:
  davidgumberg:
    utreACK b9d4d5f66a
  achow101:
    ACK b9d4d5f66a

Tree-SHA512: e9f0a7ec0c46f21c0377d5174e054a6569f858630727f94dac00c0cb7c241c56892d0b902706d6dd53880cc3b5ae1f2dba9caa1fec40e64cd4cf0d34493a49c1
2025-04-29 15:13:39 -07:00
fanquake
2b85d31bcc refactor: starts/ends_with changes for clang-tidy 20 2025-04-22 13:16:54 +01:00
willcl-ark
42e99ad773 net: skip non-route netlink responses
This shouldn't usually be hit, but is a good belt-and-braces.
2025-04-02 09:47:27 +01:00
willcl-ark
57ce645f05 net: filter for default routes in netlink responses
Filter netlink responses to only consider default routes by checking the
destination prefix length (rtm_dst_len == 0).

Previously, we selected the first route with an RTA_GATEWAY attribute,
which for IPv6 often resulted in choosing a non-default route instead of
the actual default.

This caused occasional PCP port mapping failures because a gateway for a
non-default route was selected.
2025-04-02 09:46:56 +01:00
MarcoFalke
fa942332b4 scripted-diff: Bump copyright headers after std::span changes
Historically, the headers have been bumped some time after a file has
been touched. Do it now to avoid having to touch them again in the
future for that reason.

-BEGIN VERIFY SCRIPT-
 sed -i --regexp-extended 's;( 20[0-2][0-9])(-20[0-2][0-9])? The Bitcoin Core developers;\1-present The Bitcoin Core developers;g' $( git show --pretty="" --name-only HEAD~1 )
-END VERIFY SCRIPT-
2025-03-12 19:46:54 +01:00
MarcoFalke
fade0b5e5e scripted-diff: Use std::span over Span
-BEGIN VERIFY SCRIPT-

 ren() { sed -i "s!\<$1\>!$2!g" $( git grep -l "$1" -- "./src" ":(exclude)src/span.h" ":(exclude)src/leveldb/db/log_test.cc" ) ; }

 ren Span            std::span
 ren AsBytes         std::as_bytes
 ren AsWritableBytes std::as_writable_bytes

 sed -i 's!SpanPopBack(Span!SpanPopBack(std::span!g' ./src/span.h

-END VERIFY SCRIPT-
2025-03-12 19:45:37 +01:00
laanwj
b9d4d5f66a net: Use GetAdaptersAddresses to get local addresses on Windows
Instead of a `gethostname` hack, use the official way of calling
`GetAdaptersAddresses` to get local network addresses on Windows.

As additional cleanup, move out `FromSockAddr` from MacOS and use it
everywhere appropriate.

Suggested by Ava Chow.
2025-02-13 15:20:19 +01:00
Antoine Poinsot
6fe1c35c05 pcp: make NAT-PMP error codes uint16_t
They are defined as being 16 bits in the RFC and correctly parsed in the code
which may result in an implicit conversion from uint16_t to uint8_t.
2025-02-12 10:31:43 -05:00
Antoine Poinsot
01906ce912 pcp: make the ToString method const 2025-02-12 10:31:43 -05:00