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Dash - Reinventing Cryptocurrency
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Wladimir J. van der Laan cffa5ee132
Merge #11531: Check that new headers are not a descendant of an invalid block (more effeciently) 
f3d4adf Make p2p-acceptablock not an extended test (Matt Corallo)
00dcda6 [qa] test that invalid blocks on an invalid chain get a disconnect (Matt Corallo)
015a525 Reject headers building on invalid chains by tracking invalidity (Matt Corallo)
932f118 Accept unrequested blocks with work equal to our tip (Matt Corallo)
3d9c70c Stop always storing blocks from whitelisted peers (Matt Corallo)
3b4ac43 Rewrite p2p-acceptblock in preparation for slight behavior changes (Matt Corallo)

Pull request description:

  @sdaftuar pointed out that the version in #11487 was somewhat DoS-able as someone could feed you a valid chain that forked off the the last checkpoint block and force you to do lots of work just walking backwards across blocks for each new block they gave you. We came up with a few proposals but settled on the one implemented here as likely the simplest without obvious DoS issues. It uses our existing on-load mapBlockIndex walk to make sure everything that descends from an invalid block is marked as such, and then simply caches blocks which we attempted to connect but which were found to be invalid. To avoid DoS issues during IBD, this will need to depend on #11458.

  Includes tests from #11487.

Tree-SHA512: 46aff8332908e122dae72ceb5fe8cd241902c2281a87f58a5fb486bf69d46458d84a096fdcb5f3e8e07fbcf7466232b10c429f4d67855425f11b38ac0bf612e1
2017-11-01 14:42:08 +01:00
.github Mention reporting security issues responsibly 2016-11-10 14:41:40 +01:00
.tx qt: Set transifex slug to 0.14 2017-01-02 09:36:03 +01:00
build-aux/m4 Explicitly search for bdb5.3. 2017-07-02 02:48:00 +00:00
contrib [verify-commits] Allow revoked keys to expire 2017-10-20 16:35:16 -04:00
depends [depends] native_ds_store 1.1.2 2017-10-07 14:50:25 +08:00
doc Merge #11565: Make listsinceblock refuse unknown block hash 2017-11-01 14:12:54 +01:00
share Remove extremely outdated share/certs dir 2017-09-21 15:42:40 +12:00
src Merge #11531: Check that new headers are not a descendant of an invalid block (more effeciently) 2017-11-01 14:42:08 +01:00
test Merge #11531: Check that new headers are not a descendant of an invalid block (more effeciently) 2017-11-01 14:42:08 +01:00
.gitattributes
.gitignore Use shared config file for functional and util tests 2017-05-03 14:18:30 -04:00
.travis.yml Revert "travis: filter out pyenv" 2017-10-18 14:42:08 -04:00
autogen.sh
configure.ac qa: Fix lcov for out-of-tree builds 2017-10-02 13:30:39 +02:00
CONTRIBUTING.md Fixed a couple small grammatical errors. 2017-10-28 10:23:26 -07:00
COPYING Put back inadvertently removed copyright notices 2017-09-13 07:24:42 +00:00
INSTALL.md
libbitcoinconsensus.pc.in
Makefile.am Merge #11541: Build: Fix Automake warnings when running autogen.sh 2017-10-29 18:28:21 +01:00
README.md Rename test/pull-tester/rpc-tests.py to test/functional/test_runner.py 2017-03-20 10:40:31 -04:00

README.md

Bitcoin Core integration/staging tree

Build Status

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 useable, binary version of the Bitcoin Core software, see https://bitcoin.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 and tested, but is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

The contribution workflow is described in CONTRIBUTING.md.

The developer mailing list should be used to discuss complicated or controversial changes before working on a patch set.

Developer IRC can be found on Freenode at #bitcoin-core-dev.

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 OS X, 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.