![]() usb_storage – supports USB storage devices like external hard drives or USB flash drives.btusb – controls Bluetooth devices using USB interfaces.iwlwifi – handles Intel Wireless LAN devices.snd_hda_intel – manages Intel High Definition Audio devices.nvidia – provides support for NVIDIA graphics cards.However, let’s familiarize ourselves with some commonly used kernel modules: The kernel modules used on our system vary depending on the specific system and its configuration. Additionally, kernel modules enable us to add new features or fix bugs in existing drivers without impacting the entire kernel. ![]() This dynamic nature makes them particularly useful when working with hardware that may be frequently added or removed. They allow for easy installation and removal of device drivers without rebooting the system. They extend the kernel’s functionality by adding or modifying device drivers or other kernel components without requiring a complete kernel recompilation.įurthermore, kernel modules offer several advantages. Kernel modules are separate pieces of code that can dynamically load and unload from the kernel during runtime. This guide with unsafe rust that calls into the C, and then with next gen much safer rust right next to it would be a helpful resource too.While kernel drivers are an integral part of the kernel, kernel modules offer a more flexible approach. Is this the source for the rust port of the Android binder kernel module?: > We'll now show how such a driver would be implemented in Rust, contrasting it with a C implementation. For example, we have specific machine-checked requirements around the usage of unsafe code: for every unsafe function, the developer must document the requirements that need to be satisfied by callers to ensure that its usage is safe additionally, for every call to unsafe functions (or usage of unsafe constructs like dereferencing a raw pointer), the developer must document the justification for why it is safe to do so. > Since Rust is a new language for the kernel, we also have the opportunity to enforce best practices in terms of documentation and uniformity. > We also need designs that allow code in the two languages to interact with each other: we're particularly interested in safe, zero-cost abstractions that allow Rust code to use kernel functionality written in C, and how to implement functionality in idiomatic Rust that can be called seamlessly from the C portions of the kernel. Thus, memory unsafety vulnerabilities are especially critical when they happen in the Binder driver > The majority of inter-process communication (IPC) on Android goes through Binder. ![]() This is called "application sandboxing", and is a fundamental tenet of the Android Platform Security Model. Android isolates apps from each other and the system by assigning each app a unique user ID (UID). > Motivation: Binder is one of the most security and performance critical components of Android. > Android Binder Driver: This project is an effort to rewrite Android's Binder kernel driver in Rust. Rust-for-linux links to the Android binder module though: : ![]() Links to LWN articles at that suggest that only basic modules are yet possible with the rust support in Linux kernels 6.2 and 6.3.
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