Add fix for chromium saving files to FUSE filesys

Chromium 130 won't save to our filesystem if we don't return a
max filename length.

Dummy parameters were tried for inode counts, but these do not seem to
be necessary. Not also that btrfs foes not return values for these
fields.

sesman/chansrv/chansrv_xfs.h

@@ -20,7 +20,13 @@
 #ifndef _CHANSRV_XFS
 #define _CHANSRV_XFS
 
-/* Skip this include if there's no FUSE */
+/* Maximum length of filename supported (in bytes).
+ * This is a sensible limit to a filename length. It is not used by
+ * this module to allocate long-lived storage, so it can be increased
+ * if necessary */
+#define XFS_MAXFILENAMELEN 1023
+
+/* Skip the rest of this include if there's no FUSE */
 #ifdef XRDP_FUSE
 
 #include <stddef.h>
@@ -29,12 +35,6 @@
 
 #include "arch.h"
 
-/* Maximum length of filename supported (in bytes).
- * This is a sensible limit to a filename length. It is not used by
- * this module to allocate long-lived storage, so it can be increased
- * if necessary */
-#define XFS_MAXFILENAMELEN 1023
-
 /*
  * Incomplete types for the public interface
  */

sesman/chansrv/devredir.c

@@ -1273,11 +1273,7 @@ devredir_proc_query_dir_response(IRP *irp,
 
             // Size the filename buffer so it's big enough for
             // storing the file in our filesystem if we need to.
-#ifdef XFS_MAXFILENAMELEN
             char  filename[XFS_MAXFILENAMELEN + 1];
-#else
-            char  filename[256];
-#endif
             tui64 LastAccessTime;
             tui64 LastWriteTime;
             tui64 EndOfFile;
@@ -2441,6 +2437,14 @@ devredir_proc_cid_statfs_resp(IRP *irp,
                 fss.f_blocks = TotalAllocationUnits;
                 fss.f_bfree = ActualAvailableAllocationUnits;
                 fss.f_bavail = CallerAvailableAllocationUnits;
+                // Following values do not seem to be needed by
+                // any applications. btrfs also returns 0 for these
+                //fss.f_files = ???;
+                //fss.f_ffree = ???;
+                //fss.f_favail = fss.f_ffree;
+                // Chromium 130 needs this set, or the user can't save
+                // to our filesystem
+                fss.f_namemax = XFS_MAXFILENAMELEN;
             }
         }
     }