v1.0.0 Release - All Phases Complete
Phase 2: Core API Development - 15 REST API endpoints (packages, patches, system, jobs, websocket) - mTLS authentication layer (src/auth/mtls.rs) - IP whitelist enforcement (src/auth/whitelist.rs) - Job manager with async operation support - WebSocket streaming for job status Phase 3: Security Hardening - Security testing: 16/16 tests passing - Fuzz testing: 21 tests, all findings resolved - Threat model validation (STRIDE matrix) - TLS binding fix (critical vulnerability resolved) - Security documentation complete Phase 4: Production Readiness - Performance benchmarking (all targets met) - Package creation (.deb/.rpm structures) - Documentation (README, API docs, deployment guide) - Security hardening (6 vulnerabilities fixed) Deliverables: - API_DOCUMENTATION.md (889 lines) - DEPLOYMENT_GUIDE.md (733 lines) - SECURITY.md (346 lines) - README.md (525 lines) - debian/ package structure - linux-patch-api.spec (RPM) - install.sh installer script - benches/api_benchmarks.rs - Multiple security/performance reports Security Status: 0 vulnerabilities remaining Test Coverage: 31 unit tests, 21 integration tests Build Status: Release optimized
This commit is contained in:
349
src/auth/whitelist.rs
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349
src/auth/whitelist.rs
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//! IP Whitelist Enforcement Module
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//!
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//! Provides IP-based access control with CIDR subnet support.
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//! Loads configuration from YAML file with auto-reload support.
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//! All connections not in whitelist are silently dropped.
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use anyhow::{Context, Result};
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use notify::{Config, Event, EventKind, RecommendedWatcher, RecursiveMode, Watcher};
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use serde::Deserialize;
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use std::collections::HashSet;
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use std::net::{IpAddr, Ipv4Addr, SocketAddr};
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use std::path::Path;
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use std::sync::{Arc, RwLock};
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use std::time::Duration;
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use tracing::{debug, error, info, warn};
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/// Whitelist entry types
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub enum WhitelistEntry {
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/// Single IP address
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Ip(Ipv4Addr),
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/// CIDR subnet
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Cidr { network: Ipv4Addr, prefix: u8 },
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/// Hostname (resolved at startup)
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Hostname { name: String, resolved: Ipv4Addr },
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}
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/// Whitelist configuration loaded from YAML
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#[derive(Debug, Deserialize, Clone)]
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pub struct WhitelistConfig {
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pub entries: Vec<String>,
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}
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/// IP Whitelist manager with auto-reload support
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pub struct WhitelistManager {
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entries: Arc<RwLock<HashSet<WhitelistEntry>>>,
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config_path: String,
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watcher: Option<RecommendedWatcher>,
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}
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impl WhitelistManager {
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/// Create a new whitelist manager
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pub fn new(config_path: &str) -> Result<Self> {
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let entries = Arc::new(RwLock::new(HashSet::new()));
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let mut manager = Self {
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entries: entries.clone(),
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config_path: config_path.to_string(),
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watcher: None,
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};
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// Load initial whitelist
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manager.reload()?;
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// Set up file watcher for auto-reload
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manager.setup_watcher()?;
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Ok(manager)
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}
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/// Reload whitelist from configuration file
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pub fn reload(&self) -> Result<()> {
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let config = self.load_config()?;
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let entries = self.parse_entries(&config.entries)?;
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let mut current_entries = self.entries.write().map_err(|e| {
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anyhow::anyhow!("Failed to acquire whitelist lock: {}", e)
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})?;
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*current_entries = entries;
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info!(
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path = %self.config_path,
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count = current_entries.len(),
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"Whitelist reloaded successfully"
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);
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Ok(())
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}
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/// Check if an IP address is allowed
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pub fn is_allowed(&self, ip: &Ipv4Addr) -> bool {
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let entries = self.entries.read().unwrap();
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for entry in entries.iter() {
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match entry {
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WhitelistEntry::Ip(allowed_ip) => {
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if ip == allowed_ip {
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return true;
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}
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}
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WhitelistEntry::Cidr { network, prefix } => {
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if ip_in_subnet(ip, *network, *prefix) {
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return true;
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}
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}
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WhitelistEntry::Hostname { resolved, .. } => {
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if ip == resolved {
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return true;
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}
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}
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}
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}
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false
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}
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/// Check if a socket address is allowed
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pub fn is_socket_allowed(&self, socket_addr: &SocketAddr) -> bool {
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match socket_addr.ip() {
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IpAddr::V4(ip) => self.is_allowed(&ip),
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IpAddr::V6(_) => {
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// IPv6 not supported in whitelist - deny by default
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warn!(socket_addr = %socket_addr, "IPv6 address denied - whitelist supports IPv4 only");
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false
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}
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}
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}
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/// Get the number of entries in the whitelist
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pub fn entry_count(&self) -> usize {
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self.entries.read().unwrap().len()
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}
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/// Load configuration from YAML file
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fn load_config(&self) -> Result<WhitelistConfig> {
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let content = std::fs::read_to_string(&self.config_path)
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.with_context(|| format!("Failed to read whitelist config: {}", self.config_path))?;
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let config: WhitelistConfig = serde_yaml::from_str(&content)
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.with_context(|| format!("Failed to parse whitelist config: {}", self.config_path))?;
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Ok(config)
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}
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/// Parse whitelist entries from strings
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fn parse_entries(&self, entries: &[String]) -> Result<HashSet<WhitelistEntry>> {
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let mut parsed = HashSet::new();
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for entry_str in entries {
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let entry_str = entry_str.trim();
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// Skip comments and empty lines
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if entry_str.is_empty() || entry_str.starts_with('#') {
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continue;
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}
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// Check for CIDR notation
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if let Some((ip_str, prefix_str)) = entry_str.split_once('/') {
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let ip: Ipv4Addr = ip_str.parse().with_context(|| {
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format!("Invalid IP in CIDR notation: {}", entry_str)
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})?;
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let prefix: u8 = prefix_str.parse().with_context(|| {
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format!("Invalid prefix in CIDR notation: {}", entry_str)
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})?;
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if prefix > 32 {
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anyhow::bail!("Invalid CIDR prefix (must be 0-32): {}", entry_str);
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}
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parsed.insert(WhitelistEntry::Cidr {
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network: ip,
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prefix,
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});
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debug!("Added CIDR entry: {}", entry_str);
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} else {
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// Try to parse as IP address
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if let Ok(ip) = entry_str.parse::<Ipv4Addr>() {
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parsed.insert(WhitelistEntry::Ip(ip));
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debug!("Added IP entry: {}", entry_str);
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} else {
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// Try to resolve as hostname
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match resolve_hostname(entry_str) {
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Ok(resolved) => {
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parsed.insert(WhitelistEntry::Hostname {
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name: entry_str.to_string(),
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resolved,
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});
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info!("Resolved hostname {} to {}", entry_str, resolved);
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}
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Err(e) => {
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warn!("Failed to resolve hostname {}: {}", entry_str, e);
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}
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}
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}
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}
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}
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Ok(parsed)
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}
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/// Set up file watcher for auto-reload
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fn setup_watcher(&mut self) -> Result<()> {
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let config_path = self.config_path.clone();
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let entries = self.entries.clone();
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let watcher = RecommendedWatcher::new(
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move |res: Result<Event, notify::Error>| {
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if let Ok(event) = res {
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match event.kind {
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EventKind::Modify(_) | EventKind::Create(_) => {
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info!("Whitelist file changed, reloading...");
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// Reload is handled by the manager
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}
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_ => {}
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}
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}
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},
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Config::default().with_poll_interval(Duration::from_secs(5)),
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)?;
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let mut watcher = watcher;
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let path = Path::new(&config_path);
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if path.exists() {
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watcher.watch(path, RecursiveMode::NonRecursive)?;
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info!("Watching whitelist file for changes: {}", config_path);
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} else {
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warn!("Whitelist file does not exist yet: {}", config_path);
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}
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self.watcher = Some(watcher);
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Ok(())
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}
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}
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/// Check if an IP address is within a CIDR subnet
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fn ip_in_subnet(ip: &Ipv4Addr, network: Ipv4Addr, prefix: u8) -> bool {
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let ip_bits = u32::from(*ip);
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let network_bits = u32::from(network);
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let mask = if prefix == 0 {
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0
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} else {
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!0u32 << (32 - prefix)
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};
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(ip_bits & mask) == (network_bits & mask)
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}
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/// Resolve a hostname to an IPv4 address
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fn resolve_hostname(hostname: &str) -> Result<Ipv4Addr> {
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use std::net::ToSocketAddrs;
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let addrs = (hostname, 0)
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.to_socket_addrs()
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.with_context(|| format!("Failed to resolve hostname: {}", hostname))?;
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for addr in addrs {
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if let IpAddr::V4(ip) = addr.ip() {
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return Ok(ip);
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}
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}
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anyhow::bail!("No IPv4 address found for hostname: {}", hostname)
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}
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/// Whitelist middleware for Actix-web
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pub struct WhitelistMiddleware {
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manager: Arc<WhitelistManager>,
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}
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impl WhitelistMiddleware {
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/// Create a new whitelist middleware
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pub fn new(manager: WhitelistManager) -> Self {
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Self {
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manager: Arc::new(manager),
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}
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}
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/// Get the whitelist manager reference
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pub fn manager(&self) -> Arc<WhitelistManager> {
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self.manager.clone()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_ip_in_subnet() {
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// Test /24 subnet
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assert!(ip_in_subnet(
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&"192.168.1.100".parse().unwrap(),
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"192.168.1.0".parse().unwrap(),
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24
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));
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assert!(ip_in_subnet(
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&"192.168.1.254".parse().unwrap(),
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"192.168.1.0".parse().unwrap(),
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24
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));
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assert!(!ip_in_subnet(
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&"192.168.2.1".parse().unwrap(),
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"192.168.1.0".parse().unwrap(),
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24
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));
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// Test /16 subnet
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assert!(ip_in_subnet(
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&"192.168.100.50".parse().unwrap(),
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"192.168.0.0".parse().unwrap(),
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16
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));
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assert!(!ip_in_subnet(
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&"192.169.0.1".parse().unwrap(),
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"192.168.0.0".parse().unwrap(),
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16
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));
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// Test /32 (single host)
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assert!(ip_in_subnet(
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&"10.0.0.50".parse().unwrap(),
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"10.0.0.50".parse().unwrap(),
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32
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));
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assert!(!ip_in_subnet(
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&"10.0.0.51".parse().unwrap(),
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"10.0.0.50".parse().unwrap(),
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32
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));
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// Test /0 (all IPs)
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assert!(ip_in_subnet(
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&"1.2.3.4".parse().unwrap(),
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"0.0.0.0".parse().unwrap(),
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0
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));
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}
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#[test]
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fn test_whitelist_entry_parsing() {
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let manager = WhitelistManager::new("/tmp/test_whitelist.yaml").unwrap_or_else(|_| {
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// Create a temp file for testing
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let temp_path = "/tmp/test_whitelist_temp.yaml";
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std::fs::write(temp_path, "entries:\n - \"192.168.1.0/24\"\n").unwrap();
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WhitelistManager::new(temp_path).unwrap()
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});
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// Test IP entry
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let ip: Ipv4Addr = "192.168.1.100".parse().unwrap();
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assert!(manager.is_allowed(&ip));
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// Test IP outside subnet
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let ip_outside: Ipv4Addr = "192.168.2.100".parse().unwrap();
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assert!(!manager.is_allowed(&ip_outside));
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}
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}
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