ROS (Rust Operating System)

A simple educational operating system for my use that provides basic OS functionality implemented in Rust.

Functions

Boot process

• Multi-boot support
• GDT/IDT configuration
• Initialize memory management

Device management

• Interrupt controller (PIC) configuration
• Keyboard driver
• VGA driver (text mode)

Memory Management

• Paging implementation
• Heap allocator
• Memory map management

Shell functions

• Basic command line processing
• Command History
• The following commands are implemented: help: display command list
  • help: display command list
  • clear: clear the screen.
  • exit: exit the system.
  • ls: display directory contents.
  • pwd: display current directory
  • cd: Move a directory
  • mkdir: Create a directory
  • touch: Create a file
  • time: Display current time (time zone support)

File System

• In-memory file system
• Basic file operations
• Directory hierarchy

What you need

• Rust (nightly)
• QEMU
• cargo-bootimage

Setup

## Install Rust
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

# Install nightly toolchain
rustup toolchain install nightly
rustup component add rust-src --toolchain nightly
rustup component add llvm-tools-preview

# Install QEMU
brew install qemu
build

cargo build

## run

cargo run

Development status

• Boot process
• Interrupt handling
• Keyboard Input
• Shell Basics
• Basic file system functions
• Time display with time zone support

Unimplemented

1. Shell Functions

• Tab completion
• Piping of commands
• Input/output redirection
• Editing input with cursor keys
• Alias setting for commands

2. File system

• Reading file contents (cat command)
• Deleting files (rm command)
• Moving/renaming files (mv command)
• Managing file permissions
• File system persistence

3. Process management

• Process Creation and Execution
• Interprocess Communication
• Background Execution
• Job Control

4. Memory management

• Swap space management
• Memory fragmentation prevention
• Virtual memory expansion

5. Device management

• Serial port communication
• Mouse drivers
• Network functions
• Sound functions

6. System Management

• User Management
• Log function
• Save/Load system settings
• Improved shutdown handling

7. Testing

• Expanded unit testing
• Additional integration testing
• Performance testing

8. Security

• Access Control
• Memory Protection
• System Call Restrictions