b50554babd
9d9a7458a2570f7db56ab626b22010591089c312 assumeutxo: Remove BLOCK_ASSUMED_VALID flag (Ryan Ofsky) ef174e9ed21c08f38e5d4b537b6decfd1f646db9 test: assumeutxo snapshot block CheckBlockIndex crash test (Ryan Ofsky) 0391458d767b842a7925785a7053400c0e1cb55a test: assumeutxo stale block CheckBlockIndex crash test (Ryan Ofsky) ef29c8b662309a438121a83f27fd7bdd1779700c assumeutxo: Get rid of faked nTx and nChainTx values (Ryan Ofsky) 9b97d5bbf980d657a277c85d113c2ae3e870e0ec doc: Improve comments describing setBlockIndexCandidates checks (Ryan Ofsky) 0fd915ee6bef63bb360ccc5c039a3c11676c38e3 validation: Check GuessVerificationProgress is not called with disconnected block (Ryan Ofsky) 63e8fc912c21a2f5b47e8eab10fb13c604afed85 ci: add getchaintxstats ubsan suppressions (Ryan Ofsky) f252e687ec94b6ccafb5bc44b7df3daeb473fdea assumeutxo test: Add RPC test for fake nTx and nChainTx values (Ryan Ofsky) Pull request description: The `PopulateAndValidateSnapshot` function introduced in f6e2da5fb7c6406c37612c838c998078ea8d2252 from #19806 has been setting fake `nTx` and `nChainTx` values that can show up in RPC results (https://github.com/bitcoin/bitcoin/issues/29328) and make `CBlockIndex` state hard to reason about, because it is difficult to know whether the values are real or fake. Revert to previous behavior of setting `nTx` and `nChainTx` to 0 when the values are unknown, instead of faking them. Also drop no-longer needed `BLOCK_ASSUMED_VALID` flag. Dropping the faked values also fixes assert failures in the `CheckBlockIndex` `(pindex->nChainTx == pindex->nTx + prev_chain_tx)` check that could happen previously if forked or out-of-order blocks before the snapshot got submitted while the snapshot was being validated. The PR includes two commits adding tests for these failures and describing them in detail. Compatibility note: This change could cause new `-checkblockindex` failures if a snapshot was loaded by a previous version of Bitcoin Core and not fully validated, because fake `nTx` values will have been saved to the block index. It would be pretty easy to avoid these failures by adding some compatibility code to `LoadBlockIndex` and changing `nTx` values from 1 to 0 when they are fake (when `(pindex->nStatus & BLOCK_VALID_MASK) < BLOCK_VALID_TRANSACTIONS`), but a little simpler not to worry about being compatible in this case. ACKs for top commit: Sjors: re-ACK 9d9a7458a2570f7db56ab626b22010591089c312 achow101: ACK 9d9a7458a2570f7db56ab626b22010591089c312 mzumsande: Tested ACK 9d9a7458a2570f7db56ab626b22010591089c312 maflcko: ACK 9d9a7458a2570f7db56ab626b22010591089c312 🎯 Tree-SHA512: b1e1e2731ec36be30d5f5914042517219378fc31486674030c29d9c7488ed83fb60ba7095600f469dc32f0d8ba79c49ff7706303006507654e1762f26ee416e0
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
What is Bitcoin Core?
Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.
Further information about Bitcoin Core is available in the doc folder.
License
Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.
Development Process
The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be
completely stable. Tags are created
regularly from release branches to indicate new official, stable release versions of Bitcoin Core.
The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.
The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.
Testing
Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.
Automated Testing
Developers are strongly encouraged to write unit tests for new code, and to
submit new unit tests for old code. Unit tests can be compiled and run
(assuming they weren't disabled in configure) with: make check. Further details on running
and extending unit tests can be found in /src/test/README.md.
There are also regression and integration tests, written
in Python.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.
Manual Quality Assurance (QA) Testing
Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.
Translations
Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.
Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.
Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.