Augustin Cavalier bb83316a58 L2CAP: Major refactor of the whole component.
(And surrounding portions of the "btCoreData" module.)

 * Rewrote the main "l2cap.h" header representing protocol constants
   and structures. Now conforms to general Haiku naming conventions
   rather than BSD ones. Some more constants added/removed based
   on the most recent Bluetooth specification.

 * Rewrote all code derived from the BSDs to match Haiku conventions
   and structures in the driver.

 * Dropped the "channel" and "frame" structures from "btCoreData".
   Channels are now managed by L2capEndpoints, and "frames" are
   now just plain net_buffers without surrounding structures.
   This also makes state management much simpler.

 * Made it so that actual net_buffers are passed through to the
   l2cap_receive function rather than another data structure.
   A fake interface address is used to communicate connection
   information. (This probably ought to be changed, though.)

 * Get rid of l2cap_lower and l2cap_upper abstractions.
   Everything related to channel/endpoint management is now
   done in L2capEndpoint, while buffer reception is handled
   directly in l2cap_receive and elsewhere, same as other drivers.

 * Wire up more hooks and fix module flags (needed to be able to
   get the module loaded and opening sockets at all.)

 * Implement an actual locking strategy in L2capEndpoint
   and HciConnection. There's still problems with lifetime
   management, but at least thread-safety is mostly handled.

 * Create an L2capEndpointManager and use it to manage
   the endpoints, rather than having a single (unsafe)
   linked-list.

And plenty of other refactorings and cleanups besides.
There's still more to be done for Bluetooth overall, though:

 * The "btCoreData" and "hci" modules also badly need a major
   overhaul, and should be merged into a single "bluetooth"
   bus_manager. They also shouldn't be passing around pointers
   to other modules like this.

 * There's a number of TODOs/FIXMEs in the L2CAP module, most
   notably around timeouts (especially command timeouts) and
   parameter validation/specification.

Tested by myself with kallisti5's help. Incoming connections
(on the PSM for SDP) get all the way to the latter half
of the Configuration step before hanging.
2024-05-01 00:25:43 -04:00
2024-04-16 20:18:07 +00:00
2024-04-27 08:17:24 +00:00
2018-01-04 00:04:02 -06:00
2024-03-26 21:44:17 +00:00
2021-06-13 21:06:58 +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!

Contributing code

If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.

If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:

Contributing documentation

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.

Contributing translations

See wiki:i18n.

Contributing software ports

See HaikuPorts.

Contributing to our infrastructure

See Infrastructure.

Description
The Haiku operating system
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