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Kyle Ambroff-Kao 2112748284 tcp: Fix KDL when sockets are reused
This fixes a KDL that is triggered by the following scenario.

1. A socket is created, attempting to establish a session
   between (loopback, ephemeral port) => (remote address, remote
   port).
2. That socket ends up in the closed state because the remote is not
   accepting connections.
3. The socket is re-used to connect to a different (remote address,
   remote port).

The problem is that fConnectionHash is a BOpenHashTable<TCPEndpoint>,
and inserting endpoint multiple times can create a linked list
cycle (TCPEndpoint is an intrusive linked list node). That means that,
even though TCPEndpoint's destructor removes itself from
fConnectionHash, there will still be a pointer to it left behind,
which means that future accesses within that hash table bucket will
result in a segfault.

The added fConnectionHash.Remove(endpoint) here prevents the KDL, as
it ensures that socket reuse doesn't result in a cycle.

Fixes #13927, see that ticket for a detailed explanation of the
problem.

Also added some regression tests:
* Added SocketTests::ClientSocketReuseTest to PosixNetTest, which
  reproduces this KDL.
* BOpenHashTable: Added tests to cover RemoveUnchecked and removal
  of an object that isn't in the table.

Change-Id: If4bcc1e0d94350a5ad9ba8e7ae6f1b783b3f6d34
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2173
Reviewed-by: Stephan Aßmus <superstippi@gmx.de>
2020-02-01 11:52:34 +00:00
3rdparty docker/bootstrap: Add missing autopoint tools 2019-12-09 13:45:14 -06:00
build build/repositories: Add riscv64 HaikuPorts and fix Cross 2020-01-28 13:45:49 +00:00
data Update translations from Pootle 2020-02-01 08:52:52 +00:00
docs BView::DrawBitmap: document "options" parameter 2020-01-26 11:24:04 +01:00
headers BeBuild: set default visibility for _EXPORT 2020-01-30 00:32:32 +00:00
src tcp: Fix KDL when sockets are reused 2020-02-01 11:52:34 +00:00
.editorconfig editorconfig: Add new config file around our unique style 2017-09-26 14:22:32 -05:00
.gitignore .gitignore: Ignore .DS_Store (Mac OS X directory attribute files). 2016-06-18 18:25:40 -04:00
.gitreview gerrit: Add .gitreview config 2018-01-04 00:04:02 -06:00
configure ARM64: Initial changes so we can compile GCC toolchain 2019-08-30 19:05:16 +00:00
Jamfile Jamfile: gutenprint -> gutenprint8. 2019-05-14 19:32:29 -04:00
Jamrules Revert "Jamrules: Include the UserBuildConfig before processing repositories." 2019-09-15 17:33:36 +02:00
lgtm.yml Initial version of lgtm.com configuration file. 2019-09-19 04:03:09 +00:00
License.md LICENSE: Rename to License.md, and remove all licenses but the MIT. 2016-07-29 17:36:17 -04:00
ReadMe.Compiling.md ReadMe.Compiling: Various updates. 2019-01-08 19:32:34 -05:00
ReadMe.md README: Drop dead OpenGrok link, add our cgit. 2019-10-18 18:08:25 +00:00

Haiku

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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.

Goals

  • Sensible defaults with minimal configuration required.
  • Clean, clear, concise code.
  • Unified desktop environment.

Trying Haiku

Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.

Compiling Haiku

See ReadMe.Compiling.

Contributing

Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!

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The main piece of documentation that still needs work are the API docs (found in the tree at docs/user). Just find an undocumented class, write documentation for it, and submit a patch.

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