wip
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5
.gitignore
vendored
5
.gitignore
vendored
@ -16,7 +16,4 @@ Cargo.lock
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# already existing elements were commented out
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# already existing elements were commented out
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/target
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/target
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#Cargo.lock
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/libs/*/target
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# Built packages
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/tars
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@ -15,6 +15,7 @@ categories = []
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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[dependencies]
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protomask-tun = { path = "protomask-tun", version = "0.1.0" }
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protomask-tun = { path = "protomask-tun", version = "0.1.0" }
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addrmap = { path = "libs/addrmap", version = "0.1.0" }
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tokio = { version = "1.29.1", features = [
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tokio = { version = "1.29.1", features = [
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"macros",
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"macros",
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"rt-multi-thread",
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"rt-multi-thread",
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@ -0,0 +1,55 @@
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use rustc_hash::FxHashMap;
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct IpBimap {
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v4_to_v6: FxHashMap<u32, u128>,
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v6_to_v4: FxHashMap<u128, u32>,
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}
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impl IpBimap {
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/// Construct a new `IpBimap`
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pub fn new() -> Self {
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Self {
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v4_to_v6: FxHashMap::default(),
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v6_to_v4: FxHashMap::default(),
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}
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}
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/// Insert a new mapping
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pub fn insert(&mut self, v4: u32, v6: u128) {
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self.v4_to_v6.insert(v4, v6);
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self.v6_to_v4.insert(v6, v4);
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}
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/// Remove a mapping
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pub fn remove(&mut self, v4: u32, v6: u128) {
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self.v4_to_v6.remove(&v4);
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self.v6_to_v4.remove(&v6);
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}
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/// Get the IPv6 address for a given IPv4 address
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pub fn get_v6(&self, v4: u32) -> Option<u128> {
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self.v4_to_v6.get(&v4).copied()
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}
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/// Get the IPv4 address for a given IPv6 address
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pub fn get_v4(&self, v6: u128) -> Option<u32> {
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self.v6_to_v4.get(&v6).copied()
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}
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/// Check if the map contains a given IPv4 address
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pub fn contains_v4(&self, v4: u32) -> bool {
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self.v4_to_v6.contains_key(&v4)
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}
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/// Check if the map contains a given IPv6 address
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pub fn contains_v6(&self, v6: u128) -> bool {
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self.v6_to_v4.contains_key(&v6)
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}
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}
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impl Default for IpBimap {
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fn default() -> Self {
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Self::new()
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}
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}
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16
libs/packetpeeper/Cargo.toml
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16
libs/packetpeeper/Cargo.toml
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[package]
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name = "packetpeeper"
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version = "0.1.0"
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authors = ["Evan Pratten <ewpratten@gmail.com>"]
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edition = "2021"
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description = "Tooks for acting on a raw byte slice as a packet"
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readme = "README.md"
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homepage = "https://github.com/ewpratten/protomask/libs/packetpeeper"
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documentation = "https://docs.rs/packetpeeper"
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repository = "https://github.com/ewpratten/protomask"
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license = "GPL-3.0"
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keywords = []
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categories = []
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[dependencies]
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2
libs/packetpeeper/src/lib.rs
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2
libs/packetpeeper/src/lib.rs
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@ -0,0 +1,2 @@
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pub mod types;
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pub mod ops;
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16
libs/packetpeeper/src/ops/ip.rs
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16
libs/packetpeeper/src/ops/ip.rs
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@ -0,0 +1,16 @@
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use crate::types::IpPacket;
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pub fn get_protocol<'a>(packet: IpPacket<'a>) -> u8 {
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packet[0] >> 4
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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_proto_version_ipv4(){
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let packet = [0x40u8, 0x00u8, 0x00u8, 0x00u8];
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assert_eq!(get_protocol(&packet), 4);
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}
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}
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1
libs/packetpeeper/src/ops/mod.rs
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1
libs/packetpeeper/src/ops/mod.rs
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@ -0,0 +1 @@
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pub mod ip;
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6
libs/packetpeeper/src/types.rs
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6
libs/packetpeeper/src/types.rs
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@ -0,0 +1,6 @@
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pub type IpPacket<'a> = &'a [u8];
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pub type IcmpPacket<'a> = &'a [u8];
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pub type Icmpv6Packet<'a> = &'a [u8];
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pub type TcpPacket<'a> = &'a [u8];
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pub type UdpPacket<'a> = &'a [u8];
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@ -40,214 +40,214 @@
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// }
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// }
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// // use std::{
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use std::{
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// // collections::HashMap,
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collections::HashMap,
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// // net::{IpAddr, Ipv4Addr, Ipv6Addr},
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net::{IpAddr, Ipv4Addr, Ipv6Addr},
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// // time::{Duration, Instant},
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time::{Duration, Instant},
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// // };
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};
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// // use bimap::BiHashMap;
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use bimap::BiHashMap;
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// // use ipnet::Ipv4Net;
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use ipnet::Ipv4Net;
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// // use crate::utils::metrics::{IPV4_POOL_SIZE, IPV4_POOL_RESERVED};
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use crate::utils::metrics::{IPV4_POOL_SIZE, IPV4_POOL_RESERVED};
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// // /// Possible errors thrown in the address reservation process
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/// Possible errors thrown in the address reservation process
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// // #[derive(Debug, thiserror::Error)]
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#[derive(Debug, thiserror::Error)]
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// // pub enum TableError {
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pub enum TableError {
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// // #[error("Address already reserved: {0}")]
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#[error("Address already reserved: {0}")]
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// // AddressAlreadyReserved(IpAddr),
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AddressAlreadyReserved(IpAddr),
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// // #[error("IPv4 address has no IPv6 mapping: {0}")]
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#[error("IPv4 address has no IPv6 mapping: {0}")]
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// // NoIpv6Mapping(Ipv4Addr),
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NoIpv6Mapping(Ipv4Addr),
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// // #[error("Address pool depleted")]
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#[error("Address pool depleted")]
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// // AddressPoolDepleted,
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AddressPoolDepleted,
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// // }
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}
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// // /// A NAT address table
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/// A NAT address table
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// // #[derive(Debug)]
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#[derive(Debug)]
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// // pub struct Nat64Table {
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pub struct Nat64Table {
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// // /// All possible IPv4 addresses that can be used
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/// All possible IPv4 addresses that can be used
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// // ipv4_pool: Vec<Ipv4Net>,
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ipv4_pool: Vec<Ipv4Net>,
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// // /// Current reservations
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/// Current reservations
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// // reservations: BiHashMap<Ipv6Addr, Ipv4Addr>,
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reservations: BiHashMap<Ipv6Addr, Ipv4Addr>,
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// // /// The timestamp of each reservation (used for pruning)
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/// The timestamp of each reservation (used for pruning)
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// // reservation_times: HashMap<(Ipv6Addr, Ipv4Addr), Option<Instant>>,
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reservation_times: HashMap<(Ipv6Addr, Ipv4Addr), Option<Instant>>,
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// // /// The maximum amount of time to reserve an address pair for
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/// The maximum amount of time to reserve an address pair for
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// // reservation_timeout: Duration,
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reservation_timeout: Duration,
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// // }
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}
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// // impl Nat64Table {
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impl Nat64Table {
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// // /// Construct a new NAT64 table
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/// Construct a new NAT64 table
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// // ///
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///
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// // /// **Arguments:**
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/// **Arguments:**
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// // /// - `ipv4_pool`: The pool of IPv4 addresses to use in the mapping process
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/// - `ipv4_pool`: The pool of IPv4 addresses to use in the mapping process
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// // /// - `reservation_timeout`: The amount of time to reserve an address pair for
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/// - `reservation_timeout`: The amount of time to reserve an address pair for
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// // pub fn new(ipv4_pool: Vec<Ipv4Net>, reservation_timeout: Duration) -> Self {
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pub fn new(ipv4_pool: Vec<Ipv4Net>, reservation_timeout: Duration) -> Self {
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// // // Track the total pool size
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// Track the total pool size
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// // let total_size: usize = ipv4_pool.iter().map(|net| net.hosts().count()).sum();
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let total_size: usize = ipv4_pool.iter().map(|net| net.hosts().count()).sum();
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// // IPV4_POOL_SIZE.set(total_size as i64);
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IPV4_POOL_SIZE.set(total_size as i64);
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// // Self {
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Self {
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// // ipv4_pool,
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ipv4_pool,
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// // reservations: BiHashMap::new(),
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reservations: BiHashMap::new(),
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// // reservation_times: HashMap::new(),
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reservation_times: HashMap::new(),
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// // reservation_timeout,
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reservation_timeout,
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// // }
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}
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// // }
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}
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// // /// Make a reservation for an IP address pair for eternity
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/// Make a reservation for an IP address pair for eternity
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// // pub fn add_infinite_reservation(
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pub fn add_infinite_reservation(
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// // &mut self,
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&mut self,
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// // ipv6: Ipv6Addr,
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ipv6: Ipv6Addr,
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// // ipv4: Ipv4Addr,
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ipv4: Ipv4Addr,
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// // ) -> Result<(), TableError> {
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) -> Result<(), TableError> {
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// // // Check if either address is already reserved
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// Check if either address is already reserved
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// // self.prune();
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self.prune();
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// // self.track_utilization();
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self.track_utilization();
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// // if self.reservations.contains_left(&ipv6) {
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if self.reservations.contains_left(&ipv6) {
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// // return Err(TableError::AddressAlreadyReserved(ipv6.into()));
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return Err(TableError::AddressAlreadyReserved(ipv6.into()));
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// // } else if self.reservations.contains_right(&ipv4) {
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} else if self.reservations.contains_right(&ipv4) {
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// // return Err(TableError::AddressAlreadyReserved(ipv4.into()));
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return Err(TableError::AddressAlreadyReserved(ipv4.into()));
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// // }
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}
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// // // Add the reservation
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// Add the reservation
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// // self.reservations.insert(ipv6, ipv4);
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self.reservations.insert(ipv6, ipv4);
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// // self.reservation_times.insert((ipv6, ipv4), None);
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self.reservation_times.insert((ipv6, ipv4), None);
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// // log::info!("Added infinite reservation: {} -> {}", ipv6, ipv4);
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log::info!("Added infinite reservation: {} -> {}", ipv6, ipv4);
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// // Ok(())
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Ok(())
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// // }
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}
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// // /// Check if a given address exists in the table
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/// Check if a given address exists in the table
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// // pub fn contains(&self, address: &IpAddr) -> bool {
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pub fn contains(&self, address: &IpAddr) -> bool {
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// // match address {
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match address {
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// // IpAddr::V4(ipv4) => self.reservations.contains_right(ipv4),
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IpAddr::V4(ipv4) => self.reservations.contains_right(ipv4),
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// // IpAddr::V6(ipv6) => self.reservations.contains_left(ipv6),
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IpAddr::V6(ipv6) => self.reservations.contains_left(ipv6),
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// // }
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}
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// // }
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}
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// // /// Get or assign an IPv4 address for the given IPv6 address
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/// Get or assign an IPv4 address for the given IPv6 address
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// // pub fn get_or_assign_ipv4(&mut self, ipv6: Ipv6Addr) -> Result<Ipv4Addr, TableError> {
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pub fn get_or_assign_ipv4(&mut self, ipv6: Ipv6Addr) -> Result<Ipv4Addr, TableError> {
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// // // Prune old reservations
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// Prune old reservations
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// // self.prune();
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self.prune();
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// // self.track_utilization();
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self.track_utilization();
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// // // If the IPv6 address is already reserved, return the IPv4 address
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// If the IPv6 address is already reserved, return the IPv4 address
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// // if let Some(ipv4) = self.reservations.get_by_left(&ipv6) {
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if let Some(ipv4) = self.reservations.get_by_left(&ipv6) {
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// // // Update the reservation time
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// Update the reservation time
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// // self.reservation_times
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self.reservation_times
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// // .insert((ipv6, *ipv4), Some(Instant::now()));
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.insert((ipv6, *ipv4), Some(Instant::now()));
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// // // Return the v4 address
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// Return the v4 address
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// // return Ok(*ipv4);
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return Ok(*ipv4);
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// // }
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}
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// // // Otherwise, try to assign a new IPv4 address
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// Otherwise, try to assign a new IPv4 address
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// // for ipv4_net in &self.ipv4_pool {
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for ipv4_net in &self.ipv4_pool {
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// // for ipv4 in ipv4_net.hosts() {
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for ipv4 in ipv4_net.hosts() {
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// // // Check if this address is available for use
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// Check if this address is available for use
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// // if !self.reservations.contains_right(&ipv4) {
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if !self.reservations.contains_right(&ipv4) {
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// // // Add the reservation
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// Add the reservation
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// // self.reservations.insert(ipv6, ipv4);
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self.reservations.insert(ipv6, ipv4);
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// // self.reservation_times
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self.reservation_times
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// // .insert((ipv6, ipv4), Some(Instant::now()));
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.insert((ipv6, ipv4), Some(Instant::now()));
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// // log::info!("Assigned new reservation: {} -> {}", ipv6, ipv4);
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log::info!("Assigned new reservation: {} -> {}", ipv6, ipv4);
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// // return Ok(ipv4);
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return Ok(ipv4);
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// // }
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}
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// // }
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}
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// // }
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}
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// // // If we get here, we failed to find an available address
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// If we get here, we failed to find an available address
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// // Err(TableError::AddressPoolDepleted)
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Err(TableError::AddressPoolDepleted)
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// // }
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}
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// // /// Try to find an IPv6 address for the given IPv4 address
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/// Try to find an IPv6 address for the given IPv4 address
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// // pub fn get_reverse(&mut self, ipv4: Ipv4Addr) -> Result<Ipv6Addr, TableError> {
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pub fn get_reverse(&mut self, ipv4: Ipv4Addr) -> Result<Ipv6Addr, TableError> {
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// // // Prune old reservations
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// Prune old reservations
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// // self.prune();
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self.prune();
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// // self.track_utilization();
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self.track_utilization();
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|
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// // // If the IPv4 address is already reserved, return the IPv6 address
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// If the IPv4 address is already reserved, return the IPv6 address
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// // if let Some(ipv6) = self.reservations.get_by_right(&ipv4) {
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if let Some(ipv6) = self.reservations.get_by_right(&ipv4) {
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// // // Update the reservation time
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// Update the reservation time
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// // self.reservation_times
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self.reservation_times
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// // .insert((*ipv6, ipv4), Some(Instant::now()));
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.insert((*ipv6, ipv4), Some(Instant::now()));
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|
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// // // Return the v6 address
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// Return the v6 address
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// // return Ok(*ipv6);
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return Ok(*ipv6);
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// // }
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}
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|
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// // // Otherwise, there is no matching reservation
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// Otherwise, there is no matching reservation
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// // Err(TableError::NoIpv6Mapping(ipv4))
|
Err(TableError::NoIpv6Mapping(ipv4))
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// // }
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}
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// // }
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}
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|
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// // impl Nat64Table {
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impl Nat64Table {
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// // /// Prune old reservations
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/// Prune old reservations
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// // fn prune(&mut self) {
|
fn prune(&mut self) {
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// // let now = Instant::now();
|
let now = Instant::now();
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|
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// // // Prune from the reservation map
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// Prune from the reservation map
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// // self.reservations.retain(|v6, v4| {
|
self.reservations.retain(|v6, v4| {
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// // if let Some(Some(time)) = self.reservation_times.get(&(*v6, *v4)) {
|
if let Some(Some(time)) = self.reservation_times.get(&(*v6, *v4)) {
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// // let keep = now - *time < self.reservation_timeout;
|
let keep = now - *time < self.reservation_timeout;
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// // if !keep {
|
if !keep {
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// // log::info!("Pruned reservation: {} -> {}", v6, v4);
|
log::info!("Pruned reservation: {} -> {}", v6, v4);
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// // }
|
}
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// // keep
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keep
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// // } else {
|
} else {
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// // true
|
true
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// // }
|
}
|
||||||
// // });
|
});
|
||||||
|
|
||||||
// // // Remove all times assigned to reservations that no longer exist
|
// Remove all times assigned to reservations that no longer exist
|
||||||
// // self.reservation_times.retain(|(v6, v4), _| {
|
self.reservation_times.retain(|(v6, v4), _| {
|
||||||
// // self.reservations.contains_left(v6) && self.reservations.contains_right(v4)
|
self.reservations.contains_left(v6) && self.reservations.contains_right(v4)
|
||||||
// // });
|
});
|
||||||
// // }
|
}
|
||||||
|
|
||||||
// // fn track_utilization(&self) {
|
fn track_utilization(&self) {
|
||||||
// // // Count static and dynamic in a single pass
|
// Count static and dynamic in a single pass
|
||||||
// // let (total_dynamic_reservations, total_static_reservations) = self
|
let (total_dynamic_reservations, total_static_reservations) = self
|
||||||
// // .reservation_times
|
.reservation_times
|
||||||
// // .iter()
|
.iter()
|
||||||
// // .map(|((_v6, _v4), time)| match time {
|
.map(|((_v6, _v4), time)| match time {
|
||||||
// // Some(_) => (1, 0),
|
Some(_) => (1, 0),
|
||||||
// // None => (0, 1),
|
None => (0, 1),
|
||||||
// // })
|
})
|
||||||
// // .fold((0, 0), |(a1, a2), (b1, b2)| (a1 + b1, a2 + b2));
|
.fold((0, 0), |(a1, a2), (b1, b2)| (a1 + b1, a2 + b2));
|
||||||
|
|
||||||
// // // Track the values
|
// Track the values
|
||||||
// // IPV4_POOL_RESERVED
|
IPV4_POOL_RESERVED
|
||||||
// // .with_label_values(&["dynamic"])
|
.with_label_values(&["dynamic"])
|
||||||
// // .set(i64::from(total_dynamic_reservations));
|
.set(i64::from(total_dynamic_reservations));
|
||||||
// // IPV4_POOL_RESERVED
|
IPV4_POOL_RESERVED
|
||||||
// // .with_label_values(&["static"])
|
.with_label_values(&["static"])
|
||||||
// // .set(i64::from(total_static_reservations));
|
.set(i64::from(total_static_reservations));
|
||||||
// // }
|
}
|
||||||
// // }
|
}
|
||||||
|
|
||||||
// // #[cfg(test)]
|
#[cfg(test)]
|
||||||
// // mod tests {
|
mod tests {
|
||||||
// // use super::*;
|
use super::*;
|
||||||
|
|
||||||
// // #[test]
|
#[test]
|
||||||
// // fn test_add_infinite_reservation() {
|
fn test_add_infinite_reservation() {
|
||||||
// // let mut table = Nat64Table::new(
|
let mut table = Nat64Table::new(
|
||||||
// // vec![Ipv4Net::new(Ipv4Addr::new(192, 0, 2, 0), 24).unwrap()],
|
vec![Ipv4Net::new(Ipv4Addr::new(192, 0, 2, 0), 24).unwrap()],
|
||||||
// // Duration::from_secs(60),
|
Duration::from_secs(60),
|
||||||
// // );
|
);
|
||||||
|
|
||||||
// // // Add a reservation
|
// Add a reservation
|
||||||
// // table
|
table
|
||||||
// // .add_infinite_reservation("2001:db8::1".parse().unwrap(), "192.0.2.1".parse().unwrap())
|
.add_infinite_reservation("2001:db8::1".parse().unwrap(), "192.0.2.1".parse().unwrap())
|
||||||
// // .unwrap();
|
.unwrap();
|
||||||
|
|
||||||
// // // Check that it worked
|
// Check that it worked
|
||||||
// // assert_eq!(
|
assert_eq!(
|
||||||
// // table
|
table
|
||||||
// // .reservations
|
.reservations
|
||||||
// // .get_by_left(&"2001:db8::1".parse().unwrap()),
|
.get_by_left(&"2001:db8::1".parse().unwrap()),
|
||||||
// // Some(&"192.0.2.1".parse().unwrap())
|
Some(&"192.0.2.1".parse().unwrap())
|
||||||
// // );
|
);
|
||||||
// // }
|
}
|
||||||
// // }
|
}
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user