Linux IPv6 routes handling fix (#126)

Author: wojcik91

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "defguard_wireguard_rs"
-version = "0.9.3"
+version = "0.9.4"
 edition = "2024"
 rust-version = "1.87"
 description = "A unified multi-platform high-level API for managing WireGuard interfaces"

Cargo.toml

@@ -14,7 +14,7 @@ fn pause() {
     let mut stdout = stdout();
     stdout.write_all(b"Press Enter to continue...").unwrap();
     stdout.flush().unwrap();
-    stdin().read(&mut [0]).unwrap();
+    stdin().read_exact(&mut [0]).unwrap();
 }
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {

examples/userspace.rs

@@ -25,7 +25,7 @@
       };
       rustToolchain = pkgs.rust-bin.stable.latest.default.override {
         extensions = ["rust-analyzer" "rust-src" "rustfmt" "clippy"];
-        targets = ["x86_64-unknown-linux-gnu" "armv7-unknown-linux-gnueabihf" "aarch64-unknown-linux-gnu" "x86_64-unknown-freebsd"];
+        targets = ["x86_64-unknown-linux-gnu" "armv7-unknown-linux-gnueabihf" "aarch64-unknown-linux-gnu" "x86_64-unknown-freebsd" "x86_64-apple-darwin" "x86_64-pc-windows-gnu"];
       };
       # define shared build inputs
       nativeBuildInputs = with pkgs; [rustToolchain pkg-config];

flake.lock

@@ -356,12 +356,20 @@ pub(crate) fn add_peer_routing(
         }
     }
     if let Some(default_route) = default_routes.1 {
-        setup_default_route(ifname, default_route)?;
+        if let Err(err) = setup_default_route(ifname, default_route) {
+            warn!("Failed to setup IPv6 default route for interface {ifname}: {err}.");
+        }
     } else {
         for allowed_ip in allowed_ips.1 {
             debug!("Adding a route for allowed IPv6: {allowed_ip}");
-            netlink::add_route(ifname, allowed_ip, None)?;
-            debug!("Route added for allowed IPv6: {allowed_ip}");
+            if let Err(err) = netlink::add_route(ifname, allowed_ip, None) {
+                warn!(
+                    "Failed to add route for allowed IPv6 {allowed_ip} \
+                    on interface {ifname}: {err}."
+                );
+            } else {
+                debug!("Route added for allowed IPv6: {allowed_ip}");
+            }
         }
     }
     debug!("Peers routing added successfully");