652af318db
The Linux IPC uses SCM_RIGHTS to transfer fds to another process (see TransportSocket::transfer, which calls LocalSocket::send_message). File descriptors are handled separately from regular data. On Windows handles are embedded in regular data. They are duplicated in the sender process. Socket handles need special code both on sender side (because they require using WSADuplicateSocket instead of DuplicateHandle, see TransportSocketWindows::duplicate_handles) and on receiver side (because they require WSASocket, see FileWindows.cpp). TransportSocketWindows::ReadResult::fds vector is always empty, it is kept the same as Linux version to avoid OS #ifdefs in Connection.h/.cpp and Web::HTML::MessagePort::read_from_transport. Separate handling of fds permeates all IPC code, it doesn't make sense to #ifdef out all this code on Windows. In other words, the Linux code is more generic - it handles both regular data and fds. On Windows, we need only the regular data portion of it, and we just use that. Duplicating handles on Windows requires pid of target (receiver) process (see TransportSocketWindows::m_peer_pid). This pid is received during special TransportSocketWindows initialization, which is performed only on Windows. It is handled in a separate PR #3179. Note: ChatGPT and [stackoverflow](https://stackoverflow.com/questions/25429887/getting-pid-of-peer-socket-on-windows) suggest using GetExtendedTcpTable/GetTcpTable2 to get peer pid, but this doesn't work because [MIB_TCPROW2::dwOwningPid](https://learn.microsoft.com/en-us/windows/win32/api/tcpmib/ns-tcpmib-mib_tcprow2) is "The PID of the process that issued a context bind for this TCP connection.", so for both ends it will return the pid of the process that called socketpair. Co-Authored-By: Andrew Kaster <andrew@ladybird.org> |
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|---|---|---|
| .devcontainer | ||
| .github | ||
| AK | ||
| Base/res | ||
| Documentation | ||
| Libraries | ||
| Meta | ||
| Services | ||
| Tests | ||
| Toolchain | ||
| UI | ||
| Utilities | ||
| .clang-format | ||
| .clang-tidy | ||
| .clangd | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gn | ||
| .mailmap | ||
| .pre-commit-config.yaml | ||
| .prettierignore | ||
| .prettierrc | ||
| .swift-format | ||
| .ycm_extra_conf.py | ||
| CMakeLists.txt | ||
| CMakePresets.json | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| flake.lock | ||
| flake.nix | ||
| ISSUES.md | ||
| LICENSE | ||
| README.md | ||
| SECURITY.md | ||
| shell.nix | ||
| vcpkg-configuration.json | ||
| vcpkg.json | ||
Ladybird
Ladybird is a truly independent web browser, using a novel engine based on web standards.
Important
Ladybird is in a pre-alpha state, and only suitable for use by developers
Features
We aim to build a complete, usable browser for the modern web.
Ladybird uses a multi-process architecture with a main UI process, several WebContent renderer processes, an ImageDecoder process, and a RequestServer process.
Image decoding and network connections are done out of process to be more robust against malicious content. Each tab has its own renderer process, which is sandboxed from the rest of the system.
At the moment, many core library support components are inherited from SerenityOS:
- LibWeb: Web rendering engine
- LibJS: JavaScript engine
- LibWasm: WebAssembly implementation
- LibCrypto/LibTLS: Cryptography primitives and Transport Layer Security
- LibHTTP: HTTP/1.1 client
- LibGfx: 2D Graphics Library, Image Decoding and Rendering
- LibUnicode: Unicode and locale support
- LibMedia: Audio and video playback
- LibCore: Event loop, OS abstraction layer
- LibIPC: Inter-process communication
How do I build and run this?
See build instructions for information on how to build Ladybird.
Ladybird runs on Linux, macOS, Windows (with WSL2), and many other *Nixes.
How do I read the documentation?
Code-related documentation can be found in the documentation folder.
Get in touch and participate!
Join our Discord server to participate in development discussion.
Please read Getting started contributing if you plan to contribute to Ladybird for the first time.
Before opening an issue, please see the issue policy and the detailed issue-reporting guidelines.
The full contribution guidelines can be found in CONTRIBUTING.md.
License
Ladybird is licensed under a 2-clause BSD license.