pcapforge-core 0.0.1

Fast packet capture processor and feature extractor - Core library
Documentation
use anyhow::Result;
use clap::{Parser, Subcommand};
use std::path::PathBuf;

#[derive(Parser)]
#[command(name = "pcapforge")]
#[command(about = "Fast packet capture processor and feature extractor", long_about = None)]
struct Cli {
    #[command(subcommand)]
    command: Commands,
}

#[derive(Subcommand)]
enum Commands {
    /// Process a pcap file and extract features
    Process {
        /// Path to the pcap file
        #[arg(short, long)]
        file: PathBuf,

        /// Output format (json, csv)
        #[arg(short, long, default_value = "json")]
        output: String,

        /// Filter expression (BPF syntax)
        #[arg(short = 'f', long)]
        filter: Option<String>,

        /// Verbose output
        #[arg(short, long)]
        verbose: bool,
    },

    /// Analyze a pcap file and show statistics
    Stats {
        /// Path to the pcap file
        #[arg(short, long)]
        file: PathBuf,
    },

    /// Extract specific features from packets
    Extract {
        /// Path to the pcap file
        #[arg(short, long)]
        file: PathBuf,

        /// Features to extract (e.g., "dns", "http", "tcp-flags")
        #[arg(short = 't', long)]
        features: Vec<String>,
    },
}

fn main() -> Result<()> {
    let cli = Cli::parse();

    match cli.command {
        Commands::Process { file, output, filter, verbose } => {
            if verbose {
                println!("Processing file: {:?}", file);
                if let Some(f) = &filter {
                    println!("Using filter: {}", f);
                }
            }
            process_pcap(file, output, filter)?;
        }
        Commands::Stats { file } => {
            analyze_stats(file)?;
        }
        Commands::Extract { file, features } => {
            extract_features(file, features)?;
        }
    }

    Ok(())
}

fn process_pcap(file: PathBuf, output_format: String, filter: Option<String>) -> Result<()> {
    println!("Processing pcap file: {:?}", file);
    println!("Output format: {}", output_format);
    if let Some(f) = filter {
        println!("Filter: {}", f);
    }
    // TODO: Implement actual processing
    Ok(())
}

fn analyze_stats(file: PathBuf) -> Result<()> {
    println!("Analyzing statistics for: {:?}", file);
    // TODO: Implement stats analysis
    Ok(())
}

fn extract_features(file: PathBuf, features: Vec<String>) -> Result<()> {
    println!("Extracting features from: {:?}", file);
    println!("Features: {:?}", features);
    // TODO: Implement feature extraction
    Ok(())
}