//! *pxar* Implementation (proxmox file archive format) //! //! This code implements a slightly modified version of the *catar* //! format used in the [casync](https://github.com/systemd/casync) //! toolkit (we are not 100\% binary compatible). It is a file archive //! format defined by 'Lennart Poettering', specially defined for //! efficient deduplication. //! Every archive contains items in the following order: //! * `ENTRY` -- containing general stat() data and related bits //! * `USER` -- user name as text, if enabled //! * `GROUP` -- group name as text, if enabled //! * `XATTR` -- one extended attribute //! * ... -- more of these when there are multiple defined //! * `ACL_USER` -- one `USER ACL` entry //! * ... -- more of these when there are multiple defined //! * `ACL_GROUP` -- one `GROUP ACL` entry //! * ... -- more of these when there are multiple defined //! * `ACL_GROUP_OBJ` -- The `ACL_GROUP_OBJ` //! * `ACL_DEFAULT` -- The various default ACL fields if there's one defined //! * `ACL_DEFAULT_USER` -- one USER ACL entry //! * ... -- more of these when multiple are defined //! * `ACL_DEFAULT_GROUP` -- one GROUP ACL entry //! * ... -- more of these when multiple are defined //! * `FCAPS` -- file capability in Linux disk format //! * `QUOTA_PROJECT_ID` -- the ext4/xfs quota project ID //! * `PAYLOAD` -- file contents, if it is one //! * `SYMLINK` -- symlink target, if it is one //! * `DEVICE` -- device major/minor, if it is a block/char device //! //! If we are serializing a directory, then this is followed by: //! //! * `FILENAME` -- name of the first directory entry (strictly ordered!) //! * `` -- serialization of the first directory entry's metadata and contents, //! following the exact same archive format //! * `FILENAME` -- name of the second directory entry (strictly ordered!) //! * `` -- serialization of the second directory entry //! * ... //! * `GOODBYE` -- lookup table at the end of a list of directory entries //! //! The original format has no way to deal with hardlinks, so we //! extended the format by a special `HARDLINK` tag, which can replace //! an `ENTRY` tag. The `HARDLINK` tag contains an 64bit offset which //! points to the linked `ENTRY` inside the archive, followed by the //! full path name of that `ENTRY`. `HARDLINK`s may not have further data //! (user, group, acl, ...) because this is already defined by the //! linked `ENTRY`. mod binary_search_tree; pub use binary_search_tree::*; pub mod flags; pub use flags::*; mod format_definition; pub use format_definition::*; mod encoder; pub use encoder::*; mod sequential_decoder; pub use sequential_decoder::*; mod decoder; pub use decoder::*; mod match_pattern; pub use match_pattern::*; mod dir_stack; pub use dir_stack::*; pub mod fuse; pub use fuse::*; pub mod catalog; mod helper;