1. 修改文件权限问题。将777改成755

2. 支持客户端获取config，避免两边维护两个config文件，修改维护比较麻烦。

待完善：
使用clip支持命令行参数的解析和交互。

config.json

@@ -4,6 +4,5 @@
         "d:\\": "/l0d",
         "f:\\": "/l0e"
     },
-    "port":7412,
-	"addr":"192.168.0.110"
+    "port":33444
 }

proto/lws.proto

@@ -19,6 +19,7 @@ package lws_vfs;
 service LwsVfs {
   // Sends a greeting
   rpc SayHello(HelloRequest) returns (HelloReply) {}
+  rpc GetConfig(get_config) returns (get_config) {}
 
   rpc fgetattr(getattr) returns (getattr) {}
   rpc fsetxattr(setxattr) returns (setxattr) {}
@@ -48,6 +49,10 @@ message HelloRequest { string name = 1; }
 // The response message containing the greetings
 message HelloReply { string message = 1; }
 
+message get_config {
+  string config = 1;
+}
+
 message file_info {
   uint32 flags = 1;
   uint32 fh_old = 2;

src/fs_impl/mod.rs

@@ -73,19 +73,19 @@ impl FileFdMgnt {
     }
     pub fn push(&mut self, handle: FileHandle) -> Result<u64, Box<dyn Error>> {
         let fd = self.gen_fd()?;
-        println!("push a fd: {}", fd);
+        log::trace!("push a fd: {}", fd);
         self.files.insert(fd as u16, handle);
         Ok(fd)
     }
     pub fn pop(&mut self, fd: u64) -> Option<FileHandle> {
-        println!("pop a fd: {}", fd);
+        log::trace!("pop a fd: {}", fd);
         self.files.remove(&(fd as u16))
     }
     // pub fn get(&mut self, fd: u64) -> Option<&FileHandle> {
     //     self.files.get(&fd)
     // }
     pub fn get_mut(&mut self, fd: u64) -> Option<&mut FileHandle> {
-        println!("get a fd: {}", fd);
+        log::trace!("get a fd: {}", fd);
         self.files.get_mut(&(fd as u16))
     }
 }
@@ -95,7 +95,7 @@ fn get_file_mode_mask(path: &str) -> u32 {
     let metadata = match fs::metadata(path) {
         Ok(metadata) => metadata,
         Err(_) => {
-            println!("get {} metadata fail", path);
+            log::warn!("get {} metadata fail", path);
             return permissions;
         }
     };
@@ -104,7 +104,7 @@ fn get_file_mode_mask(path: &str) -> u32 {
     if attributes & FILE_ATTRIBUTE_READONLY != 0 {
         permissions |= 0o0444;
     } else {
-        permissions |= 0o0444 | 0o0222;
+        permissions |= 0o0444 | 0o0200;
     }
     // add executeable
     permissions |= 0o0111;
@@ -131,7 +131,7 @@ impl FSImpl {
         let metadata = fs::metadata(path)?;
         from_metadata(sta, &metadata)?;
         let perm = get_file_mode_mask(path);
-        println!("file mode is Oct:{:o}", perm);
+        // log::trace!("file mode is Oct:{:o}", perm);
         sta.fst_mode = perm.into();
         Ok(0)
     }
@@ -167,7 +167,7 @@ impl FSImpl {
         };
         match file.seek_read(buffer, offsize as u64) {
             Ok(size) => {
-                // println!(
+                // log::info!(
                 //     "size is:{}, buffer is {}",
                 //     size,
                 //     String::from_utf8(buffer.to_vec()).unwrap()

src/lib.rs

@@ -2,10 +2,11 @@
 use lws_vfs::lws_vfs_server::LwsVfs;
 use lws_vfs::{
     Access, Chown, FileInfo, Flush, Fstat, Getattr, Getxattr, HelloReply, HelloRequest, Mkdir,
-    Open, Read, Readdir, Release, Rmdir, Setxattr, Truncate, Utimens, Write, Create, Unlink, Opendir, Releasedir, Rename
+    Open, Read, Readdir, Release, Rmdir, Setxattr, Truncate, Utimens, Write, Create, Unlink, Opendir, Releasedir, Rename, GetConfig,
 };
 use self::fs_impl::FSImpl;
 use serde_json::{self, Value};
+use serde::Serialize;
 use std::error::Error;
 use std::fs::File;
 use std::io::Read as _;
@@ -29,7 +30,7 @@ pub mod lws_vfs {
 //     "port":5001
 // }
 
-#[derive(Debug, Default)]
+#[derive(Debug, Serialize, Default)]
 pub struct Config {
     port: u16,
     mount_map: HashMap<String, String>,
@@ -114,6 +115,14 @@ impl LwsVfs for LwsVfsIns {
 
         Ok(Response::new(reply))
     }
+    async fn get_config(&self, _req: Request<GetConfig>) -> Result<Response<GetConfig>, Status> {
+        let config = serde_json::to_string(&self.config).unwrap();
+        log::info!("reply config: {}", config);
+        let reply = GetConfig {
+            config,
+        };
+        Ok(Response::new(reply))
+    }
     async fn fgetattr(&self, request: Request<Getattr>) -> Result<Response<Getattr>, Status> {
         let request = request.into_inner();
         log::trace!("Got a request: {:?}", request);