The functionality of stat is split into smaller sub-functions, which allows
to reuse them more flexible, as the code flow is similar but not always the same.
By this, the ugly and incorrect re-setting of the i-node in the lookup callback
function is avoided.
The correct i-node is now calculated beforehand and stat simply creates a
`libc::stat` struct from the provided parameters.
Also, this fixes incorrect i-node assignments in the readdir callback function.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
The lookup call checks if the given filename is found in the directory referenced
by the i-node by calclulating the filenames hash and looking it up in the
directories goodbye table.
If found, the entries parameters are returned.
In order to be able to lookup the parent offset by a given file offset in the
readdir callback, this also stores the corresponding values in a HashMap.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
In order to read the contents of the goodbye table while keeping the
functionality of list_dir in place as is.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
... and thereby allow it to read a single directory entry based on the
start and end archive offsets.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
... as they are not needed with the latest iteration of the fuse callback
function impl (which never made it into the repos).
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
The previous implementation simply skipped over `size` bytes, which is not
correct as size includes also the header.
By relying on `SequentailDecoder`s read_filename function, this is correctly
taken care of plus some more integrity checks.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Also, removes an unused println statement in the decoder callback function and
fixes a typo.
Further, use ABI compatible Option<&T> for FFI to avoid use of raw pointers.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Implements functions attributes, open, read, read_link and get_dir
to be used by the fuse implementation which uses file offsets within the archive
as inodes to reference the archives items.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
By this it is possible to read and check just the first u64 of the corresponding
structs in order to identify the items.
This is needed for the fuse implementation in order to get entries based on the
archive offset, used as inode.
Directories are referenced by the offset to the goodbye tail while other items
are referenced by the offset of the filename followed by the entry.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
