Struct Vfs 

pub struct Vfs { /* private fields */ }

Virtual Filesystem Manager

Implementations

impl Vfs

pub fn new() -> Self

Create a new VFS instance

impl Vfs

pub fn mount_root(&mut self, fs: Arc<dyn Filesystem>) -> Result<(), KernelError>

Mount the root filesystem

pub fn mount( &mut self, path: String, fs: Arc<dyn Filesystem>, ) -> Result<(), KernelError>

Mount a filesystem at the specified path

pub fn mount_by_type( &mut self, path: &str, fs_type: &str, _flags: u32, ) -> Result<(), KernelError>

Mount a filesystem by type at the specified path

pub fn swap_root(&mut self, fs: Arc<dyn Filesystem>)

Replace the root filesystem (used for persistent BlockFS mount at boot).

The previous root filesystem (if any) is dropped. Mount points under /dev and /proc should be re-mounted after calling this.

pub fn unmount(&mut self, path: &str) -> Result<(), KernelError>

Unmount a filesystem at the specified path

pub fn resolve_path(&self, path: &str) -> Result<Arc<dyn VfsNode>, KernelError>

Resolve a path to a VFS node, following symlinks (including the final component).

pub fn resolve_path_no_follow( &self, path: &str, ) -> Result<Arc<dyn VfsNode>, KernelError>

Resolve a path to a VFS node without following the final symlink component. Intermediate symlinks are still followed. Used by lstat() and readlink().

pub fn resolve_from( &self, path: &str, cwd: &str, ) -> Result<Arc<dyn VfsNode>, KernelError>

Resolve a path to a VFS node using an explicit cwd (per-thread FS state).

pub fn resolve_from_no_follow( &self, path: &str, cwd: &str, ) -> Result<Arc<dyn VfsNode>, KernelError>

Resolve a path to a VFS node using an explicit cwd, without following the final symlink component.

pub fn get_cwd(&self) -> &str

Get current working directory

pub fn set_cwd(&mut self, path: String) -> Result<(), KernelError>

Set current working directory

pub fn open( &self, path: &str, flags: OpenFlags, ) -> Result<Arc<dyn VfsNode>, KernelError>

Open a file

Checks MAC policy before allowing access.

pub fn mkdir( &self, path: &str, permissions: Permissions, ) -> Result<(), KernelError>

Create a directory

Checks MAC policy (Write access to file domain) before creating.

pub fn unlink(&self, path: &str) -> Result<(), KernelError>

Remove a file or directory

pub fn list_mounts(&self) -> Vec<(String, String, bool)>

List all mount points and their filesystem types.

Returns a vector of (path, fs_name, readonly) tuples.

pub fn sync(&self) -> Result<(), KernelError>

Sync all filesystems

Trait Implementations

impl Default for Vfs

fn default() -> Self

Returns the “default value” for a type.