Wladimir J. van der Laan d9935222d5
Merge #19951: net, test: CNetAddr scoped ipv6 test coverage, rename scopeId to m_scope_id
f36887fa47b42af60f8a06a3995baca7c73ca310 net: rename CNetAddr scopeId to m_scope_id, improve code doc (Jon Atack)
5cb5fd3005435f3a7ca0c3401951d1db8db4fb88 test: add test coverage for CNetAddr ipv6 scoped addresses (Jon Atack)

Pull request description:

  Add some test coverage for the IPv6 scoped address feature in `netaddress`/`netbase` per https://tools.ietf.org/html/rfc4007, update the member name `scopeId` to `m_scope_id` per `doc/developer-notes.md`, and improve the code doc.

  ----

  Reviewers can manually verify the test with these steps:

  - [pull down the changes locally and check out this branch](https://jonatack.github.io/articles/how-to-review-pull-requests-in-bitcoin-core#pull-down-the-code-locally)

  - [build Bitcoin Core](https://jonatack.github.io/articles/how-to-compile-bitcoin-core-and-run-the-tests)

  - run the test: `cd src ; test/test_bitcoin -t net_tests/cnetaddr_basic -l all`

  <details><summary><em>you should see passing test output like this</em></summary><p>

  ```
  Running 1 test case...
  Entering test module "Bitcoin Core Test Suite"
  test/net_tests.cpp(85): Entering test suite "net_tests"
  test/net_tests.cpp(204): Entering test case "cnetaddr_basic"
  test/net_tests.cpp(210): info: check LookupHost("0.0.0.0", addr, false) has passed
  test/net_tests.cpp(211): info: check !addr.IsValid() has passed
  test/net_tests.cpp(212): info: check addr.IsIPv4() has passed
  test/net_tests.cpp(214): info: check addr.IsBindAny() has passed
  test/net_tests.cpp(215): info: check addr.ToString() == "0.0.0.0" has passed
  test/net_tests.cpp(218): info: check LookupHost("255.255.255.255", addr, false) has passed
  test/net_tests.cpp(219): info: check !addr.IsValid() has passed
  test/net_tests.cpp(220): info: check addr.IsIPv4() has passed
  test/net_tests.cpp(222): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(223): info: check addr.ToString() == "255.255.255.255" has passed
  test/net_tests.cpp(226): info: check LookupHost("12.34.56.78", addr, false) has passed
  test/net_tests.cpp(227): info: check addr.IsValid() has passed
  test/net_tests.cpp(228): info: check addr.IsIPv4() has passed
  test/net_tests.cpp(230): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(231): info: check addr.ToString() == "12.34.56.78" has passed
  test/net_tests.cpp(234): info: check LookupHost("::", addr, false) has passed
  test/net_tests.cpp(235): info: check !addr.IsValid() has passed
  test/net_tests.cpp(236): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(238): info: check addr.IsBindAny() has passed
  test/net_tests.cpp(239): info: check addr.ToString() == "::" has passed
  test/net_tests.cpp(242): info: check LookupHost(ipv6_addr, addr, false) has passed
  test/net_tests.cpp(243): info: check addr.IsValid() has passed
  test/net_tests.cpp(244): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(246): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(247): info: check addr.ToString() == ipv6_addr has passed
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): info: check addr.ToString() == scoped_addr has passed
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): info: check addr.ToString() == scoped_addr has passed
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): info: check addr.ToString() == scoped_addr has passed
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): info: check addr.ToString() == scoped_addr has passed
  test/net_tests.cpp(263): info: check !LookupHost(ipv6_addr + "%" + zone_id, addr, false) has passed
  test/net_tests.cpp(263): info: check !LookupHost(ipv6_addr + "%" + zone_id, addr, false) has passed
  test/net_tests.cpp(263): info: check !LookupHost(ipv6_addr + "%" + zone_id, addr, false) has passed
  test/net_tests.cpp(266): info: check LookupHost(ipv6_addr + "%0", addr, false) has passed
  test/net_tests.cpp(267): info: check addr.IsValid() has passed
  test/net_tests.cpp(268): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(269): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(270): info: check addr.ToString() == ipv6_addr has passed
  test/net_tests.cpp(274): info: check addr.IsValid() has passed
  test/net_tests.cpp(275): info: check addr.IsTor() has passed
  test/net_tests.cpp(277): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(278): info: check addr.ToString() == "6hzph5hv6337r6p2.onion" has passed
  test/net_tests.cpp(282): info: check !addr.IsValid() has passed
  test/net_tests.cpp(283): info: check addr.IsInternal() has passed
  test/net_tests.cpp(285): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(286): info: check addr.ToString() == "esffpvrt3wpeaygy.internal" has passed
  test/net_tests.cpp(204): Leaving test case "cnetaddr_basic"; testing time: 30933us
  test/net_tests.cpp(85): Leaving test suite "net_tests"; testing time: 30975us
  Leaving test module "Bitcoin Core Test Suite"; testing time: 31169us

  *** No errors detected
  ```
  </p>/</details>

  - change this line in the code to break the feature:
  ```diff
  --- a/src/netaddress.cpp
  +++ b/src/netaddress.cpp
  @@ -716,7 +716,7 @@ bool CService::GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const
           memset(paddrin6, 0, *addrlen);
           if (!GetIn6Addr(&paddrin6->sin6_addr))
               return false;
  -        paddrin6->sin6_scope_id = m_scope_id;
  +        // paddrin6->sin6_scope_id = m_scope_id;
  ```

  - rebuild, e.g. `make`

  - run the test: `test/test_bitcoin -t net_tests/cnetaddr_basic -l all`, verify that the added tests break

  <details><summary><em>you should see test output with a few failed tests like this</em></summary><p>

  ```
  Running 1 test case...
  Entering test module "Bitcoin Core Test Suite"
  test/net_tests.cpp(85): Entering test suite "net_tests"
  test/net_tests.cpp(204): Entering test case "cnetaddr_basic"
  test/net_tests.cpp(210): info: check LookupHost("0.0.0.0", addr, false) has passed
  test/net_tests.cpp(211): info: check !addr.IsValid() has passed
  test/net_tests.cpp(212): info: check addr.IsIPv4() has passed
  test/net_tests.cpp(214): info: check addr.IsBindAny() has passed
  test/net_tests.cpp(215): info: check addr.ToString() == "0.0.0.0" has passed
  test/net_tests.cpp(218): info: check LookupHost("255.255.255.255", addr, false) has passed
  test/net_tests.cpp(219): info: check !addr.IsValid() has passed
  test/net_tests.cpp(220): info: check addr.IsIPv4() has passed
  test/net_tests.cpp(222): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(223): info: check addr.ToString() == "255.255.255.255" has passed
  test/net_tests.cpp(226): info: check LookupHost("12.34.56.78", addr, false) has passed
  test/net_tests.cpp(227): info: check addr.IsValid() has passed
  test/net_tests.cpp(228): info: check addr.IsIPv4() has passed
  test/net_tests.cpp(230): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(231): info: check addr.ToString() == "12.34.56.78" has passed
  test/net_tests.cpp(234): info: check LookupHost("::", addr, false) has passed
  test/net_tests.cpp(235): info: check !addr.IsValid() has passed
  test/net_tests.cpp(236): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(238): info: check addr.IsBindAny() has passed
  test/net_tests.cpp(239): info: check addr.ToString() == "::" has passed
  test/net_tests.cpp(242): info: check LookupHost(ipv6_addr, addr, false) has passed
  test/net_tests.cpp(243): info: check addr.IsValid() has passed
  test/net_tests.cpp(244): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(246): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(247): info: check addr.ToString() == ipv6_addr has passed
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): error: in "net_tests/cnetaddr_basic": check addr.ToString() == scoped_addr has failed [1122:3344:5566:7788:9900:aabb:ccdd:eeff != 1122:3344:5566:7788:9900:aabb:ccdd:eeff%1]
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): error: in "net_tests/cnetaddr_basic": check addr.ToString() == scoped_addr has failed [1122:3344:5566:7788:9900:aabb:ccdd:eeff != 1122:3344:5566:7788:9900:aabb:ccdd:eeff%21]
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): error: in "net_tests/cnetaddr_basic": check addr.ToString() == scoped_addr has failed [1122:3344:5566:7788:9900:aabb:ccdd:eeff != 1122:3344:5566:7788:9900:aabb:ccdd:eeff%19]
  test/net_tests.cpp(254): info: check LookupHost(scoped_addr, addr, false) has passed
  test/net_tests.cpp(255): info: check addr.IsValid() has passed
  test/net_tests.cpp(256): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(257): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(258): error: in "net_tests/cnetaddr_basic": check addr.ToString() == scoped_addr has failed [1122:3344:5566:7788:9900:aabb:ccdd:eeff != 1122:3344:5566:7788:9900:aabb:ccdd:eeff%3]
  test/net_tests.cpp(263): info: check !LookupHost(ipv6_addr + "%" + zone_id, addr, false) has passed
  test/net_tests.cpp(263): info: check !LookupHost(ipv6_addr + "%" + zone_id, addr, false) has passed
  test/net_tests.cpp(263): info: check !LookupHost(ipv6_addr + "%" + zone_id, addr, false) has passed
  test/net_tests.cpp(266): info: check LookupHost(ipv6_addr + "%0", addr, false) has passed
  test/net_tests.cpp(267): info: check addr.IsValid() has passed
  test/net_tests.cpp(268): info: check addr.IsIPv6() has passed
  test/net_tests.cpp(269): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(270): info: check addr.ToString() == ipv6_addr has passed
  test/net_tests.cpp(274): info: check addr.IsValid() has passed
  test/net_tests.cpp(275): info: check addr.IsTor() has passed
  test/net_tests.cpp(277): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(278): info: check addr.ToString() == "6hzph5hv6337r6p2.onion" has passed
  test/net_tests.cpp(282): info: check !addr.IsValid() has passed
  test/net_tests.cpp(283): info: check addr.IsInternal() has passed
  test/net_tests.cpp(285): info: check !addr.IsBindAny() has passed
  test/net_tests.cpp(286): info: check addr.ToString() == "esffpvrt3wpeaygy.internal" has passed
  test/net_tests.cpp(204): Leaving test case "cnetaddr_basic"; testing time: 32316us
  test/net_tests.cpp(85): Leaving test suite "net_tests"; testing time: 32354us
  Leaving test module "Bitcoin Core Test Suite"; testing time: 32522us

  *** 4 failures are detected in the test module "Bitcoin Core Test Suite"
  ```
  </p></details>

  - leave your review here

ACKs for top commit:
  laanwj:
    ACK f36887fa47b42af60f8a06a3995baca7c73ca310

Tree-SHA512: 8e77e512db130642be7d3a910735ca803a2afdb5a704f713f163f8b5a80be3077a2be6f0a3ca43d299731dcd2545ac35571f8c74e5250a72a48233c26f9a3ab5
2020-10-02 17:06:59 +02:00
2020-10-01 22:19:11 +02:00
2020-09-14 16:35:09 +08:00
2020-04-14 16:38:26 +00:00
2019-12-26 23:11:21 +01:00

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.

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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.

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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.

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