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Wladimir J. van der Laan e3b474c548
Merge #20140: Restore compatibility with old CSubNet serialization 
886be97af5 Ignore incorrectly-serialized banlist.dat entries (Pieter Wuille)
883cea7dea Restore compatibility with old CSubNet serialization (Pieter Wuille)

Pull request description:

  #19628 changed CSubNet for IPv4 netmasks, using the first 4 bytes of `netmask` rather than the last 4 to store the actual mask. Unfortunately, CSubNet objects are serialized on disk in banlist.dat, breaking compatibility with existing banlists (and bringing them into an inconsistent state where entries reported in `listbanned` cannot be removed).

  Fix this by reverting to the old format (just for serialization). Also add a sanity check to the deserializer so that nonsensical banlist.dat entries are ignored (which would otherwise be possible if someone added IPv4 entries after #19628 but without this PR).

  Reported by Greg Maxwell.

ACKs for top commit:
  laanwj:
    Code review ACK 886be97af5
  vasild:
    ACK 886be97af

Tree-SHA512: d3fb91e8ecd933406e527187974f22770374ee2e12a233e7870363f52ecda471fb0b7bae72420e8ff6b6b1594e3037a5115984c023dbadf38f86aeaffcd681e7
2020-10-15 11:44:36 +02:00
.github doc: Remove label from good first issue template 2020-08-24 09:31:24 +02:00
.tx tx: Update transifex slug for 0.21 2020-10-01 22:19:11 +02:00
build-aux/m4 build: AX_PTHREAD serial 27 2020-09-14 16:35:09 +08:00
build_msvc Merge #19953: Implement BIP 340-342 validation (Schnorr/taproot/tapscript) 2020-10-15 10:22:35 +02:00
ci Merge #19953: Implement BIP 340-342 validation (Schnorr/taproot/tapscript) 2020-10-15 10:22:35 +02:00
contrib Squashed 'src/secp256k1/' changes from 8ab24e8dad..c6b6b8f1bb 2020-10-14 11:41:15 -07:00
depends Add sqlite to travis and depends 2020-10-14 11:18:13 -04:00
doc Merge #19077: wallet: Add sqlite as an alternative wallet database and use it for new descriptor wallets 2020-10-15 20:12:29 +13:00
share doc: Use precise permission flags where possible 2020-07-10 15:37:42 +02:00
src Merge #20140: Restore compatibility with old CSubNet serialization 2020-10-15 11:44:36 +02:00
test Merge #19953: Implement BIP 340-342 validation (Schnorr/taproot/tapscript) 2020-10-15 10:22:35 +02:00
.appveyor.yml Bump vcpkg commit ID to get new msys mirror list 2020-10-06 19:17:53 +01:00
.cirrus.yml cirrus: Use kvm to avoid spurious CI failures in the default virtualization cluster 2020-10-08 14:47:21 +02:00
.fuzzbuzz.yml ci: Add fuzzbuzz integration 2020-04-14 16:38:26 +00:00
.gitattributes
.gitignore .gitignore: ignore qa-assets/ folder 2020-09-08 02:47:53 -04:00
.python-version
.style.yapf
.travis.yml Squashed 'src/secp256k1/' changes from 8ab24e8dad..c6b6b8f1bb 2020-10-14 11:41:15 -07:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
CODEOWNERS doc: Add comments and additional reviewers to CODEOWNERS file 2020-09-01 11:23:58 -04:00
configure.ac Merge #19953: Implement BIP 340-342 validation (Schnorr/taproot/tapscript) 2020-10-15 10:22:35 +02:00
CONTRIBUTING.md Replace hidden service with onion service 2020-08-07 14:55:02 +02:00
COPYING doc: Update license year range to 2020 2019-12-26 23:11:21 +01:00
INSTALL.md
libbitcoinconsensus.pc.in
Makefile.am build: use DIR_FUZZ_SEED_CORPUS if specified for cov_fuzz target 2020-09-08 02:45:42 -04:00
README.md Squashed 'src/secp256k1/' changes from 8ab24e8dad..c6b6b8f1bb 2020-10-14 11:41:15 -07:00
SECURITY.md

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

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, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes 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.

Translators should also subscribe to the mailing list.