feat: add serialization support (#26)

* add serde dependency

* serialize interface configuration

* serialize host struct

---------

Co-authored-by: Maciej Wójcik <[email protected]>

Cargo.toml

@@ -13,6 +13,7 @@ categories = ["network-programming"]
 [dependencies]
 base64 = "0.21"
 log = "0.4"
+serde = { version = "1.0", features = ["derive"] }
 thiserror = "1.0"
 
 [dev-dependencies]

src/host.rs

@@ -13,11 +13,12 @@ use netlink_packet_wireguard::{
     constants::{WGDEVICE_F_REPLACE_PEERS, WGPEER_F_REPLACE_ALLOWEDIPS},
     nlas::{WgAllowedIpAttrs, WgDeviceAttrs, WgPeer, WgPeerAttrs},
 };
+use serde::{Deserialize, Serialize};
 
 use crate::{key::Key, net::IpAddrMask};
 
 /// WireGuard peer representation.
-#[derive(Debug, Default, PartialEq, Clone)]
+#[derive(Debug, Default, PartialEq, Clone, Serialize, Deserialize)]
 pub struct Peer {
     pub public_key: Key,
     pub preshared_key: Option<Key>,
@@ -163,7 +164,7 @@ impl Peer {
 }
 
 /// WireGuard host representation.
-#[derive(Debug, Default, Clone)]
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
 pub struct Host {
     pub listen_port: u16,
     pub private_key: Option<Key>,

src/key.rs

@@ -7,11 +7,12 @@ use std::{
 };
 
 use base64::{prelude::BASE64_STANDARD, DecodeError, Engine};
+use serde::{Deserialize, Serialize};
 
 const KEY_LENGTH: usize = 32;
 
 /// WireGuard key representation in binary form.
-#[derive(Clone, Default)]
+#[derive(Clone, Default, Serialize, Deserialize)]
 pub struct Key([u8; KEY_LENGTH]);
 
 #[derive(Debug)]

src/lib.rs

@@ -70,6 +70,7 @@ mod wireguard_interface;
 #[macro_use]
 extern crate log;
 
+use serde::{Deserialize, Serialize};
 use std::process::Output;
 
 use self::{
@@ -90,7 +91,7 @@ pub use wgapi_userspace::WireguardApiUserspace;
 pub use wireguard_interface::WireguardInterfaceApi;
 
 /// Host WireGuard interface configuration
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct InterfaceConfiguration {
     pub name: String,
     pub prvkey: String,

src/net.rs

@@ -7,9 +7,10 @@ use netlink_packet_wireguard::{
     constants::{AF_INET, AF_INET6},
     nlas::{WgAllowedIp, WgAllowedIpAttrs},
 };
+use serde::{Deserialize, Serialize};
 
 /// IP address with CIDR.
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, PartialEq, Clone, Serialize, Deserialize)]
 pub struct IpAddrMask {
     // IP v4 or v6
     pub ip: IpAddr,