ant_quic/nat_traversal/
bootstrap.rs

1//! Bootstrap Coordination Protocol
2//!
3//! This module implements the bootstrap coordination protocol for QUIC-native NAT traversal.
4//! It handles the initial connection establishment and coordination between peers using
5//! the approach defined in draft-seemann-quic-nat-traversal-01, without relying on
6//! external protocols like STUN or ICE.
7
8use std::collections::HashMap;
9use std::net::SocketAddr;
10use std::time::{Duration, Instant};
11
12use crate::nat_traversal_api::{BootstrapNode, PeerId};
13
14/// Manages bootstrap node connections and coordination
15pub struct BootstrapCoordinator {
16    // Bootstrap nodes to connect to
17    bootstrap_nodes: Vec<BootstrapNode>,
18    // Active connections to bootstrap nodes
19    active_connections: HashMap<PeerId, BootstrapConnection>,
20    // Connection attempts in progress
21    pending_connections: HashMap<PeerId, Instant>,
22    // Retry configuration
23    retry_interval: Duration,
24    // Rate limiting configuration
25    rate_limiter: RateLimiter,
26}
27
28/// Represents a connection to a bootstrap node
29struct BootstrapConnection {
30    peer_id: PeerId,
31    address: SocketAddr,
32    last_activity: Instant,
33    // Additional connection state
34}
35
36/// Simple rate limiter for bootstrap operations
37struct RateLimiter {
38    max_requests_per_minute: u32,
39    request_timestamps: Vec<Instant>,
40}
41
42// Implementation of bootstrap coordination
43// (Placeholder - actual implementation would go here)