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Merge bitcoin/bitcoin#28196: BIP324 connection support 
db9888feec net: detect wrong-network V1 talking to V2Transport (Pieter Wuille)
91e1ef8684 test: add unit tests for V2Transport (Pieter Wuille)
297c888997 net: make V2Transport preallocate receive buffer space (Pieter Wuille)
3ffa5fb49e net: make V2Transport send uniformly random number garbage bytes (Pieter Wuille)
0be752d9f8 net: add short message encoding/decoding support to V2Transport (Pieter Wuille)
8da8642062 net: make V2Transport auto-detect incoming V1 and fall back to it (Pieter Wuille)
13a7f01557 net: add V2Transport class with subset of BIP324 functionality (Pieter Wuille)
dc2d7eb810 crypto: Spanify EllSwiftPubKey constructor (Pieter Wuille)
5f4b2c6d79 net: remove unused Transport::SetReceiveVersion (Pieter Wuille)
c3fad1f29d net: add have_next_message argument to Transport::GetBytesToSend() (Pieter Wuille)

Pull request description:

  This is part of #27634.

  This implements the BIP324 v2 transport (which implements all of what the BIP calls transport layer *and* application layer), though in a non-exposed way. It is tested through an extensive fuzz test, which verifies that v2 transports can talk to v2 transports, and v1 transports can talk to v2 transports, and a unit test that exercises a number of unusual scenarios. The transport is functionally complete, including:
  * Autodetection of incoming V1 connections.
  * Garbage, both sending and receiving.
  * Short message type IDs, both sending and receiving.
  * Ignore packets (receiving only, but tested in a unit test).
  * Session IDs are visible in `getpeerinfo` output (for manual comparison).

  Things that are not included, left for future PRs, are:
  * Actually using the v2 transport for connections.
  * Support for the `NODE_P2P_V2` service flag.
  * Retrying downgrade to V1 when attempted outbound V2 connections immediately fail.
  * P2P functional and unit tests

ACKs for top commit:
  naumenkogs:
    ACK db9888feec
  theStack:
    re-ACK db9888feec
  mzumsande:
    Code Review ACK db9888feec

Tree-SHA512: 8906ac1e733a99e1f31c9111055611f706d80bbfc2edf6a07fa6e47b21bb65baacd1ff17993cbbf588063b2f5ad30b3af674a50c7bc8e8ebf4671483a21bbfeb
2023-09-08 10:24:03 +01:00
.github Squashed 'src/secp256k1/' changes from c545fdc374..199d27cea3 2023-09-04 12:51:20 -04:00
.tx qt: Bump Transifex slug for 26.x 2023-09-01 07:49:31 +01:00
build-aux/m4 build: Bump minimum supported GCC to g++-9 2023-05-18 12:24:40 +02:00
build_msvc Remove unused raw-pointer read helper from univalue 2023-07-27 14:24:52 +02:00
ci Merge bitcoin/bitcoin#28359: ci: Asan with -ftrivial-auto-var-init=pattern 2023-09-05 10:07:50 +01:00
contrib doc: s/--no-substitute/--no-substitutes in guix/INSTALL 2023-09-07 09:51:12 +01:00
depends depends: cctools 986 & ld64 711 2023-09-06 16:36:40 +01:00
doc doc: Release notes for testnet defaulting to -acceptnonstdtxn=0 2023-08-28 22:09:39 +10:00
share depends: Bump MacOS minimum runtime requirement to 11.0 2023-06-22 15:28:47 +00:00
src Merge bitcoin/bitcoin#28196: BIP324 connection support 2023-09-08 10:24:03 +01:00
test Merge bitcoin/bitcoin#28412: test: remove unused variables in p2p_invalid_block 2023-09-07 16:10:14 +01:00
.cirrus.yml Squashed 'src/secp256k1/' changes from c545fdc374..199d27cea3 2023-09-04 12:51:20 -04:00
.editorconfig ci: Drop AppVeyor CI integration 2021-09-07 06:12:53 +03:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore refactor: cleanups post unsubtree'ing univalue 2022-06-15 12:56:44 +01:00
.python-version ci: Use DOCKER_BUILDKIT for lint image 2023-07-16 13:18:18 +02:00
.style.yapf Update .style.yapf 2023-06-01 23:35:10 +05:30
autogen.sh build: make sure we can overwrite config.{guess,sub} 2023-06-13 14:58:43 +02:00
configure.ac Squashed 'src/secp256k1/' changes from c545fdc374..199d27cea3 2023-09-04 12:51:20 -04:00
CONTRIBUTING.md doc: Explain squashing with merge commits 2022-05-24 08:17:41 +02:00
COPYING doc: Update license year range to 2023 2022-12-24 11:40:16 +01:00
INSTALL.md doc: Added hyperlink for doc/build 2021-09-09 19:53:12 +05:30
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am build: package test_bitcoin in Windows installer 2022-08-09 09:13:23 +01:00
README.md doc: Explain Bitcoin Core in README.md 2022-05-10 07:49:09 +02:00
SECURITY.md doc: Add my key to SECURITY.md 2022-08-23 16:57:46 -04:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

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.