feat: add crypt4ghfs-rust

__fs/crypt4ghfs-rust/src/lib.rs

@@ -0,0 +1,63 @@
+#![allow(
+	clippy::upper_case_acronyms,
+	clippy::missing_panics_doc,
+	clippy::missing_errors_doc,
+	clippy::must_use_candidate,
+	clippy::module_name_repetitions,
+	clippy::cast_sign_loss,
+	clippy::cast_possible_truncation,
+	clippy::similar_names
+)]
+
+use std::path::{Path, PathBuf};
+
+use config::Config;
+use error::Crypt4GHFSError;
+
+pub mod config;
+mod directory;
+mod egafile;
+mod encrypted_file;
+pub mod error;
+mod file_admin;
+mod filesystem;
+mod regular_file;
+mod utils;
+
+pub fn run_with_config(conf: &Config, mountpoint: PathBuf) -> Result<(), Crypt4GHFSError> {
+	// Set log level and logger
+	conf.setup_logger()?;
+
+	let rootdir = conf.get_rootdir();
+	if !Path::new(&rootdir).exists() {
+		return Err(Crypt4GHFSError::PathDoesNotExist(Path::new(&rootdir).into()));
+	}
+
+	// Encryption / Decryption keys
+	let seckey = (conf.get_secret_key()?).map_or_else(
+		|| {
+			log::warn!("No seckey specified");
+			vec![0_u8; 32]
+		},
+		|key| key,
+	);
+
+	let recipients = conf.get_recipients(&seckey);
+
+	// Get options
+	let options = conf.get_options();
+
+	let fs = filesystem::Crypt4ghFS::new(
+		&rootdir,
+		seckey,
+		recipients,
+		nix::unistd::getuid(),
+		nix::unistd::getgid(),
+	);
+
+	if !mountpoint.exists() {
+		return Err(Crypt4GHFSError::PathDoesNotExist(mountpoint));
+	}
+
+	fuser::mount2(fs, &mountpoint, &options).map_err(|e| Crypt4GHFSError::MountError(e.to_string()))
+}