Init a selinux project (#2800)

* selinux_init

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

* use_unimplemented

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

* add_explanation

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

* update

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

* use_path_instead_of_str

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

* use_thiserror

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

* use_struct

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

---------

Signed-off-by: Hiroyuki Moriya <41197469+Gekko0114@users.noreply.github.com>

Cargo.toml

@@ -1,7 +1,7 @@
 [workspace]
 resolver = "2"
 members = ["crates/*", "tests/contest/*", "tools/*"]
-exclude = ["experiment/seccomp"]
+exclude = ["experiment/seccomp", "experiment/selinux"]
 
 [profile.release]
 lto = true

experiment/selinux/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "selinux"
+version = "0.1.0"
+description = "Library for selinux"
+license-file = "../../LICENSE"
+repository = "https://github.com/containers/youki"
+homepage = "https://containers.github.io/youki"
+readme = "README.md"
+authors = ["youki team"]
+edition = "2021"
+autoexamples = true
+keywords = ["youki", "container", "selinux"]
+
+[dependencies]
+nix = { version = "0.29.0", features = ["process", "fs"] }
+thiserror = "1.0.61"

experiment/selinux/README.md

@@ -0,0 +1,7 @@
+This is an experimental project in order to create selinux library in Rust.  
+Ref: https://github.com/containers/youki/issues/2718.  
+Reimplementation of (selinux)[https://github.com/opencontainers/selinux] in Rust.  
+Also selinux depends on xattr, but nix doesn't cover xattr function. 
+Therefore, this PR will implement xattr in Rust.  
+
+Please import and use this project.

experiment/selinux/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod selinux;
+pub mod xattr;