modified: Cargo.lock

modified:   frida_core/src/linux_tun.rs

Cargo.lock

@@ -1683,6 +1683,7 @@ dependencies = [
  "env_logger",
  "frida_core",
  "log",
+ "network-interface",
  "tokio",
  "tokio-util",
  "x25519-dalek",
@@ -2805,6 +2806,18 @@ dependencies = [
  "jni-sys",
 ]
 
+[[package]]
+name = "network-interface"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "433419f898328beca4f2c6c73a1b52540658d92b0a99f0269330457e0fd998d5"
+dependencies = [
+ "cc",
+ "libc",
+ "thiserror 1.0.69",
+ "winapi",
+]
+
 [[package]]
 name = "nix"
 version = "0.29.0"

frida_core/src/linux_tun.rs

@@ -7,13 +7,31 @@ use crate::device::AbstractDevice;
 use log::info;
 
 pub fn create(cfg: AbstractDevice) -> (DeviceReader, DeviceWriter) {
+
+    let builder = Tun::builder();
+
+    if cfg.tun_name.is_some() {
+        builder.name(&cfg.tun_name.unwrap());
+    }
+
+    if cfg.mtu.is_some() {
+        builder.mtu(cfg.mtu.unwrap().into());
+    }
+
+    if cfg.address.is_some() {
+        builder.address(cfg.address.unwrap());
+    }
+
+    if cfg.netmask.is_some() {
+        builder.netmask(cfg.netmask.unwrap());
+    }
+
+    if cfg.destination.is_some() {
+        builder.destination(cfg.destination.unwrap());
+    }
+
     let tun = Arc::new(
-        Tun::builder()
+        builder
-            .name(&cfg.tun_name.unwrap())            // if name is empty, then it is set by kernel.
-            .mtu(cfg.mtu.unwrap().into())
-            .address(cfg.address.unwrap())
-            .netmask(cfg.netmask.unwrap())
-            .destination(cfg.destination.unwrap())
             .up()                // or set it up manually using `sudo ip link set <tun-name> up`.
             .try_build()         // or `.try_build_mq(queues)` for multi-queue support.
             .unwrap(),