clippy all codes (#1214)

1. clippy code
2. add fmt and clippy check in ci

easytier/src/common/ifcfg/mod.rs

@@ -1,6 +1,6 @@
 #[cfg(any(target_os = "macos", target_os = "freebsd"))]
 mod darwin;
-#[cfg(any(target_os = "linux"))]
+#[cfg(target_os = "linux")]
 mod netlink;
 #[cfg(target_os = "windows")]
 mod win;
@@ -141,7 +141,7 @@ pub struct DummyIfConfiger {}
 #[async_trait]
 impl IfConfiguerTrait for DummyIfConfiger {}
 
-#[cfg(any(target_os = "linux"))]
+#[cfg(target_os = "linux")]
 pub type IfConfiger = netlink::NetlinkIfConfiger;
 
 #[cfg(any(target_os = "macos", target_os = "freebsd"))]

easytier/src/common/ifcfg/netlink.rs

@@ -85,14 +85,14 @@ fn send_netlink_req_and_wait_one_resp<T: NetlinkDeserializable + NetlinkSerializ
     match ret.payload {
         NetlinkPayload::Error(e) => {
             if e.code == NonZero::new(0) {
-                return Ok(());
+                Ok(())
             } else {
-                return Err(e.to_io().into());
+                Err(e.to_io().into())
             }
         }
         p => {
             tracing::error!("Unexpected netlink response: {:?}", p);
-            return Err(anyhow::anyhow!("Unexpected netlink response").into());
+            Err(anyhow::anyhow!("Unexpected netlink response").into())
         }
     }
 }
@@ -263,8 +263,8 @@ impl NetlinkIfConfiger {
 
             let (address, netmask) = match (address.family(), netmask.family()) {
                 (Some(Inet), Some(Inet)) => (
-                    IpAddr::V4(address.as_sockaddr_in().unwrap().ip().into()),
-                    IpAddr::V4(netmask.as_sockaddr_in().unwrap().ip().into()),
+                    IpAddr::V4(address.as_sockaddr_in().unwrap().ip()),
+                    IpAddr::V4(netmask.as_sockaddr_in().unwrap().ip()),
                 ),
                 (Some(Inet6), Some(Inet6)) => (
                     IpAddr::V6(address.as_sockaddr_in6().unwrap().ip()),
@@ -333,7 +333,7 @@ impl NetlinkIfConfiger {
 
         let mut resp = Vec::<u8>::new();
         loop {
-            if resp.len() == 0 {
+            if resp.is_empty() {
                 let (new_resp, _) = s.recv_from_full()?;
                 resp = new_resp;
             }

easytier/src/common/ifcfg/win/luid.rs

@@ -727,7 +727,7 @@ impl InterfaceLuid {
         if family == (AF_INET6 as ADDRESS_FAMILY) {
             // ipv6 mtu must be at least 1280
             mtu = 1280.max(mtu);
-        }  
+        }
 
         // https://stackoverflow.com/questions/54857292/setipinterfaceentry-returns-error-invalid-parameter
         row.SitePrefixLength = 0;

easytier/src/common/ifcfg/win/mod.rs

@@ -1,3 +1,3 @@
+pub mod luid;
 pub mod netsh;
 pub mod types;
-pub mod luid;

easytier/src/common/ifcfg/win/netsh.rs

@@ -115,4 +115,4 @@ pub fn add_dns_ipv6(if_index: u32, dnses: &[Ipv6Addr]) -> Result<(), String> {
     }
     let dnses_str: Vec<String> = dnses.iter().map(|addr| addr.to_string()).collect();
     add_dns(AF_INET6 as _, if_index, &dnses_str)
-}
+}

easytier/src/common/ifcfg/win/types.rs

@@ -100,4 +100,4 @@ pub fn u16_ptr_to_string(ptr: *const u16) -> String {
     let slice = unsafe { std::slice::from_raw_parts(ptr, len) };
 
     String::from_utf16_lossy(slice)
-}
+}