Struct SquashFs 

pub struct SquashFs<S: BlockSource> { /* private fields */ }

A mounted SquashFS volume.

Trait Implementations

impl<S: BlockSource> FoldFrontend<S> for SquashFs<S>

const TAG: &'static str = "squashfs"

Stable tag surfaced through trust events (“iso9660”, “udf”, “squashfs”, …).

fn probe(src: &mut S) -> Result<bool>

Cheap, bounded superblock/magic sniff — must not over-read. Returns true if src looks like this format.

fn open(src: S, _cx: &mut SubstrateCtx<'_>) -> Result<Self>

Mount the volume over src, given the shared substrate.

fn root(&self) -> NodeId

The root directory node.

fn lookup( &mut self, dir: NodeId, name: &str, cx: &mut SubstrateCtx<'_>, ) -> Result<Option<NodeId>>

Resolve one path component within dir.

fn read_dir( &mut self, dir: NodeId, _cx: &mut SubstrateCtx<'_>, ) -> Result<Vec<DirEntry>>

List the entries of a directory (advisory: re-resolve by name before any security decision — same contract as LamBoot’s read_dir).

fn metadata( &mut self, node: NodeId, _cx: &mut SubstrateCtx<'_>, ) -> Result<Metadata>

Metadata for a node.

fn read_at( &mut self, node: NodeId, off: u64, buf: &mut [u8], _cx: &mut SubstrateCtx<'_>, ) -> Result<usize>

Read up to buf.len() bytes of a regular file starting at off. Returns the number of bytes read (0 at EOF).

fn read_link( &mut self, node: NodeId, _cx: &mut SubstrateCtx<'_>, ) -> Result<Option<Vec<u8>>>

The target of a symbolic link (raw bytes), or None if node is not a symlink. Default: the format has no symlinks. Frontends that carry POSIX semantics (ISO9660 Rock Ridge, squashfs, erofs) override this; the boot path uses it to resolve e.g. /boot/vmlinuz → the real kernel.