Server implemented. Linux client implemented.

furumi-common/proto/virtualfs.proto

@@ -0,0 +1,41 @@
+syntax = "proto3";
+package virtualfs;
+
+message PathRequest {
+  string path = 1;
+}
+
+message AttrResponse {
+  uint64 size = 1;
+  uint32 mode = 2; // Permissions and file type
+  uint64 mtime = 3; // Modification time
+  // ... other standard stat attributes
+}
+
+message DirEntry {
+  string name = 1;
+  uint32 type = 2; // File or Directory, mapping roughly to libc::DT_REG, libc::DT_DIR, etc.
+}
+
+message ReadRequest {
+  string path = 1;
+  uint64 offset = 2;
+  uint32 size = 3;
+  // Optional requested chunk size. If 0, the server uses its default chunk size.
+  uint32 chunk_size = 4;
+}
+
+message FileChunk {
+  bytes data = 1;
+}
+
+service RemoteFileSystem {
+  // Get file or directory attributes (size, permissions, timestamps). Maps to stat/getattr.
+  rpc GetAttr (PathRequest) returns (AttrResponse);
+  
+  // List directory contents. Uses Server Streaming to handle massively large directories efficiently.
+  rpc ReadDir (PathRequest) returns (stream DirEntry);
+  
+  // Read chunks of a file. Uses Server Streaming for efficient chunk delivery based on offset/size.
+  rpc ReadFile (ReadRequest) returns (stream FileChunk);
+}