1. 目前已基础功能可用： 挂载，进入目录，拷贝文件，编辑文件等

2. 解决虚拟根目录匹配的做法有点问题，现在使用固定匹配/的方式，而不是逐层的匹配。
3. 存在性能问题，获取某个文件的attr的时候会逐一的获取其他父级目录的attr。使用起来反应较慢

src/fs_impl/mod.rs

@@ -97,12 +97,16 @@ fn get_file_mode_mask(path: &str) -> u32 {
     let attributes = metadata.file_attributes();
     // let permissions = metadata.permissions();
     if attributes & FILE_ATTRIBUTE_READONLY != 0 {
-        permissions |= 0o222;
+        permissions |= 0o0444;
     } else {
-        permissions |= 0o444 | 0o222;
+        permissions |= 0o0444 | 0o0222;
     }
+    // add executeable
+    permissions |= 0o0111;
     if metadata.is_dir() {
-        permissions |= 0o111;
+        permissions |= libc::S_IFDIR as u32;
+    } else {
+        permissions |= libc::S_IFREG as u32;
     }
     permissions
 }
@@ -122,14 +126,18 @@ impl FSImpl {
         let metadata = fs::metadata(path)?;
         from_metadata(sta, &metadata)?;
         let perm = get_file_mode_mask(path);
-        sta.fst_mode = perm as u64;
+        println!("file mode is Oct:{:o}", perm);
+        sta.fst_mode = perm.into();
         Ok(0)
     }
 
     pub fn fopen(&self, path: &String, fi: &mut FileInfo) -> Result<i32, Box<dyn Error>> {
+        let flag = fi.flags & (0xff);
+        let read = flag == libc::O_RDONLY as u32 || flag == libc::O_RDWR as u32;
+        let write = flag == libc::O_WRONLY as u32 || flag == libc::O_RDWR as u32;
         let f = File::options()
-            .read(fi.flags & libc::O_RDONLY as u32 != 0)
+            .read(read)
-            .write(fi.flags & libc::O_WRONLY as u32 != 0).open(path)?;
+            .write(write).open(path)?;
         let fd = self.file_fds.lock().unwrap().push(FileHandle::FILE(f))?;
         fi.fh = fd;
         return Ok(0);
@@ -154,11 +162,11 @@ impl FSImpl {
         };
         match file.seek_read(buffer, offsize as u64) {
             Ok(size) => {
-                println!(
+                // println!(
-                    "size is:{}, buffer is {}",
+                //     "size is:{}, buffer is {}",
-                    size,
+                //     size,
-                    String::from_utf8(buffer.to_vec()).unwrap()
+                //     String::from_utf8(buffer.to_vec()).unwrap()
-                );
+                // );
                 buffer.resize(size, 0);
             }
             Err(_) => {
@@ -329,8 +337,12 @@ impl FSImpl {
 
     pub fn faccess(&self, path: &String, mask: u32) -> Result<i32, Box<dyn Error>> {
         let permissions = get_file_mode_mask(path);
+        if mask == 0 && permissions != 0 {
+            Ok(0)
+        } else {
             Ok(if permissions & mask != 0 { 0 } else { -1 })
         }
+    }
 
     pub fn frmdir(&self, path: &String) -> Result<i32, Box<dyn Error>> {
         fs::remove_dir(path)?;

src/lib.rs

@@ -84,6 +84,7 @@ impl LwsVfsIns {
     }
     fn lpath(&self, path: &String) -> String {
         let mut ret = String::new();
+        // println!("try to convert {}", path);
         // /l0e -> w:
         for (k, v) in &self.config.mount_map {
             if path.starts_with(v) {
@@ -91,6 +92,7 @@ impl LwsVfsIns {
                 break;
             }
         }
+        // println!("path convert ret is {}", ret);
         ret
     }
 }
@@ -101,18 +103,18 @@ impl LwsVfs for LwsVfsIns {
         &self,
         request: Request<HelloRequest>,
     ) -> Result<Response<HelloReply>, Status> {
+        let request = request.into_inner();
         println!("Got a request: {:?}", request);
 
         let reply = HelloReply {
-            message: format!("Hello {}!", request.into_inner().name),
+            message: format!("Hello {}!", request.name),
         };
 
         Ok(Response::new(reply))
     }
     async fn fgetattr(&self, request: Request<Getattr>) -> Result<Response<Getattr>, Status> {
-        println!("Got a request: {:?}", request);
-
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let mut fstat = Fstat::default();
         let mut fi = FileInfo::default();
@@ -132,16 +134,19 @@ impl LwsVfs for LwsVfsIns {
         Ok(Response::new(reply))
     }
     async fn fopen(&self, request: Request<Open>) -> Result<Response<Open>, Status> {
-        println!("Got a request: {:?}", request);
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let ret = match self.fs.fopen(path, &mut fi) {
             Ok(_) => {
                 0
             }
             Err(e) => {
-                println!("Error opening file[{}]: {:?}", path, e);
+                println!("Error open file[{}]: {:?}", path, e);
                 -1
             }
         };
@@ -153,12 +158,15 @@ impl LwsVfs for LwsVfsIns {
         Ok(Response::new(reply))
     }
     async fn fread(&self, request: Request<Read>) -> Result<Response<Read>, Status> {
-        println!("Got a request: {:?}", request);
         let request = request.into_inner();
-        let mut fi = request.fi.unwrap();
+        println!("Got a request: {:?}", request);
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let path = &self.lpath(&request.path);
-        let mut size: usize = request.size.try_into().unwrap();
+        let mut size: usize = request.size as usize;
-        let offset: usize = request.offset.try_into().unwrap();
+        let offset: usize = request.offset as usize;
         let mut buff: Vec<u8> = Vec::with_capacity(size);
         unsafe {
             buff.set_len(size);
@@ -170,7 +178,7 @@ impl LwsVfs for LwsVfsIns {
                     size: buff.len() as i64,
                     buff,
                     offset: offset as u64,
-                    fi: Some(fi),
+                    fi: None,
                     ret,
                 };
                 Ok(Response::new(reply))
@@ -182,7 +190,7 @@ impl LwsVfs for LwsVfsIns {
                     buff: Vec::new(),
                     size: 0,
                     offset: 0,
-                    fi: Some(fi),
+                    fi: None,
                     ret: -1,
                 };
                 Ok(Response::new(reply))
@@ -191,11 +199,15 @@ impl LwsVfs for LwsVfsIns {
     }
     async fn fwrite(&self, request: Request<Write>) -> Result<Response<Write>, Status> {
         let request = request.into_inner();
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let path = &self.lpath(&request.path);
         let buff = request.buff;
         let mut size = request.size as usize;
         let offset = request.offset as usize;
+        println!("Got a fwrite request: size {} offset {}", request.size, offset);
         let ret = match self.fs.fwrite(path, &buff, &mut size, offset, &mut fi) {
             Ok(ret) => ret,
             Err(e) => {
@@ -212,6 +224,7 @@ impl LwsVfs for LwsVfsIns {
     }
     async fn faccess(&self, request: Request<Access>) -> Result<Response<Access>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let mask = request.mask;
         let ret = match self.fs.faccess(path, mask) {
@@ -230,12 +243,13 @@ impl LwsVfs for LwsVfsIns {
     }
 
     async fn fsetxattr(&self, request: Request<Setxattr>) -> Result<Response<Setxattr>, Status> {
-        let req = request.into_inner();
+        let request = request.into_inner();
-        let path = &self.lpath(&req.path);
+        println!("Got a request: {:?}", request);
-        let name = req.name.as_ref();
+        let path = &self.lpath(&request.path);
-        let value = req.value;
+        let name = request.name.as_ref();
-        let size = req.size as usize;
+        let value = request.value;
-        let flags = req.flags;
+        let size = request.size as usize;
+        let flags = request.flags;
         let ret = match self.fs.fsetxattr(path, name, &value, size, flags) {
             Ok(ret) => ret,
             Err(e) => {
@@ -250,10 +264,11 @@ impl LwsVfs for LwsVfsIns {
         Ok(Response::new(reply))
     }
     async fn fgetxattr(&self, request: Request<Getxattr>) -> Result<Response<Getxattr>, Status> {
-        let req = request.into_inner();
+        let request = request.into_inner();
-        let path = &self.lpath(&req.path);
+        println!("Got a request: {:?}", request);
-        let name = req.name.as_ref();
+        let path = &self.lpath(&request.path);
-        let size = req.size as usize;
+        let name = request.name.as_ref();
+        let size = request.size as usize;
         let ret = match self.fs.fgetxattr(path, name, size) {
             Ok(ret) => ret,
             Err(e) => {
@@ -270,7 +285,11 @@ impl LwsVfs for LwsVfsIns {
 
     async fn freaddir(&self, request: Request<Readdir>) -> Result<Response<Readdir>, Status> {
         let request = request.into_inner();
-        let mut fi = request.fi.unwrap();
+        println!("Got a request: {:?}", request);
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let path = &self.lpath(&request.path);
         let offset = request.offset as usize;
         let mut dirs = vec![];
@@ -291,6 +310,7 @@ impl LwsVfs for LwsVfsIns {
     }
     async fn fmkdir(&self, request: Request<Mkdir>) -> Result<Response<Mkdir>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let mode = request.mode;
         let ret = match self.fs.fmkdir(&path, mode) {
@@ -308,6 +328,7 @@ impl LwsVfs for LwsVfsIns {
     }
     async fn ftruncate(&self, request: Request<Truncate>) -> Result<Response<Truncate>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let size = request.size as u64;
         let ret = match self.fs.ftruncate(path, size) {
@@ -326,6 +347,7 @@ impl LwsVfs for LwsVfsIns {
 
     async fn futimens(&self, request: Request<Utimens>) -> Result<Response<Utimens>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let a_time = vec![request.ts[0].tv_sec as u64, request.ts[0].tv_nsec as u64];
         let m_time = vec![request.ts[1].tv_sec as u64, request.ts[1].tv_nsec as u64];
@@ -345,6 +367,7 @@ impl LwsVfs for LwsVfsIns {
 
     async fn fchown(&self, request: Request<Chown>) -> Result<Response<Chown>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let uid = request.uid as u32;
         let gid = request.gid as u32;
@@ -363,8 +386,12 @@ impl LwsVfs for LwsVfsIns {
     }
     async fn frelease(&self, request: Request<Release>) -> Result<Response<Release>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let ret = match self.fs.frelease(path, &mut fi, request.flush != 0) {
             Ok(ret) => ret,
             Err(e) => {
@@ -380,6 +407,7 @@ impl LwsVfs for LwsVfsIns {
     }
     async fn frmdir(&self, request: Request<Rmdir>) -> Result<Response<Rmdir>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let ret = match self.fs.frmdir(path) {
             Ok(ret) => ret,
@@ -397,8 +425,12 @@ impl LwsVfs for LwsVfsIns {
 
     async fn fflush(&self, request: Request<Flush>) -> Result<Response<Flush>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let ret = match self.fs.fflush(path, &mut fi) {
             Ok(ret) => ret,
             Err(e) => {
@@ -415,9 +447,13 @@ impl LwsVfs for LwsVfsIns {
 
     async fn fcreate(&self, request: Request<Create>) -> Result<Response<Create>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let mode = request.mode as u32;
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let ret = match self.fs.fcreate(path, mode, &mut fi) {
             Ok(ret) => ret,
             Err(e) => {
@@ -434,6 +470,7 @@ impl LwsVfs for LwsVfsIns {
 
     async fn funlink(&self, request: Request<Unlink>) -> Result<Response<Unlink>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
         let ret = match self.fs.funlink(path) {
             Ok(ret) => ret,
@@ -451,17 +488,22 @@ impl LwsVfs for LwsVfsIns {
 
     async fn fopendir(&self,request: Request<Opendir>) -> Result<Response<Opendir>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let ret = match self.fs.fopendir(path, &mut fi) {
             Ok(ret) => ret,
             Err(e) => {
-                println!("Error: opendir file[{}]: {:?}", path, e);
+                println!("Error: opendir dir[{}]: {:?}", path, e);
                 -1
             }
         };
         let reply = Opendir {
             ret,
+            fi: Some(fi),
             ..Opendir::default()
         };
         Ok(Response::new(reply))
@@ -469,8 +511,12 @@ impl LwsVfs for LwsVfsIns {
 
     async fn freleasedir(&self, request: Request<Releasedir>) -> Result<Response<Releasedir>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let path = &self.lpath(&request.path);
-        let mut fi = request.fi.unwrap();
+        let mut fi = match request.fi{
+            Some(fi) => fi,
+            None => FileInfo::default(),
+        };
         let ret = match self.fs.freleasedir(path, &mut fi) {
             Ok(ret) => ret,
             Err(e) => {
@@ -487,6 +533,7 @@ impl LwsVfs for LwsVfsIns {
 
     async fn frename(&self, request: Request<Rename>) -> Result<Response<Rename>, Status> {
         let request = request.into_inner();
+        println!("Got a request: {:?}", request);
         let from = &self.lpath(&request.path);
         let to = &self.lpath(&request.new);
         let ret = match self.fs.frename(from, to) {

src/server.rs

@@ -23,7 +23,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
             return Err(e);
         }
     };
-    let addr = format!("192.168.0.110:{}", instance.config.get_port());
+    let addr = format!("0.0.0.0:{}", instance.config.get_port());
     println!("Listening on {}", addr);
     transport::Server::builder()
         .add_service(LwsVfsServer::new(instance))