refine code

src/platform/mod.rs

@@ -42,6 +42,7 @@ pub(crate) mod android;
 #[cfg(target_os = "android")]
 pub use self::android::{create, Device, PlatformConfig};
 
+// Tip: OpenHarmony is a kind of Linux.
 #[cfg(target_env = "ohos")]
 pub(crate) mod ohos;
 #[cfg(target_env = "ohos")]

src/platform/ohos/device.rs

@@ -22,7 +22,7 @@ use crate::device::AbstractDevice;
 use crate::error::{Error, Result};
 use crate::platform::posix::{self, Fd, Tun};
 
-/// A TUN device for Android.
+/// A TUN device for OpenHarmony.
 pub struct Device {
     tun: Tun,
 }

src/platform/ohos/mod.rs

@@ -26,31 +26,23 @@ use crate::error::Result;
 pub struct PlatformConfig;
 
 impl PlatformConfig {
-    /// Enable or disable packet information, the first 4 bytes of
-    /// each packet delivered from/to Linux underlying API is a header with flags and protocol type when enabled.
-    ///
-    /// [Note: This configuration just applies to the Linux underlying API and is a no-op on tun(i.e. the packets delivered from/to tun always contain no packet information) -- end note].
-    #[deprecated(
-        since = "1.0.0",
-        note = "No effect applies to the packets delivered from/to tun since the packets always contain no header on all platforms."
-    )]
-    pub fn packet_information(&mut self, value: bool) -> &mut Self {
+    /// Dummy functions for compatibility with Linux.
+    pub fn packet_information(&mut self, _value: bool) -> &mut Self {
         self
     }
 
-    /// Indicated whether tun running in root privilege,
-    /// since some operations need it such as assigning IP/netmask/destination etc.
-    pub fn ensure_root_privileges(&mut self, value: bool) -> &mut Self {
+    /// Dummy functions for compatibility with Linux.
+    pub fn ensure_root_privileges(&mut self, _value: bool) -> &mut Self {
         self
     }
 
-    /// Enable / Disable IFF_NAPI flag.
-    pub fn napi(&mut self, value: bool) -> &mut Self {
+    /// Dummy functions for compatibility with Linux.
+    pub fn napi(&mut self, _value: bool) -> &mut Self {
         self
     }
 
-    /// Enable / Disable IFF_VNET_HDR flag.
-    pub fn vnet_hdr(&mut self, value: bool) -> &mut Self {
+    /// Dummy functions for compatibility with Linux.
+    pub fn vnet_hdr(&mut self, _value: bool) -> &mut Self {
         self
     }
 }