From bdcae12188766a064c685848c932d077f73bcdda Mon Sep 17 00:00:00 2001 From: h7x4 Date: Sat, 10 Jan 2026 00:09:10 +0900 Subject: [PATCH] Initial commit --- .gitignore | 5 + Cargo.lock | 1220 +++++++++++++++++++++++++++++++++++++ Cargo.toml | 45 ++ LICENSE | 26 + README.md | 6 + flake.lock | 48 ++ flake.nix | 81 +++ nix/package.nix | 42 ++ src/bin/donquotad.rs | 91 +++ src/bin/uquota.rs | 0 src/lib.rs | 2 + src/proto.rs | 1 + src/server.rs | 2 + src/server/config.rs | 13 + src/server/varlink_api.rs | 86 +++ 15 files changed, 1668 insertions(+) create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 LICENSE create mode 100644 README.md create mode 100644 flake.lock create mode 100644 flake.nix create mode 100644 nix/package.nix create mode 100644 src/bin/donquotad.rs create mode 100644 src/bin/uquota.rs create mode 100644 src/lib.rs create mode 100644 src/proto.rs create mode 100644 src/server.rs create mode 100644 src/server/config.rs 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= "0.1.0" +edition = "2024" +resolver = "2" +license = "BSD-3-Clause" +authors = [ + "Programvareverkstedet ", +] +description = "Modern remote quotactl(2)" +categories = ["command-line-interface", "command-line-utilities"] +readme = "README.md" +autobins = false +autolib = false + +[dependencies] +anyhow = "1.0.100" +chrono = { version = "0.4.42", features = ["serde"] } +clap = { version = "4.5.53", features = ["derive"] } +futures-util = "0.3.31" +nix = { version = "0.30.1", features = [] } +serde = { version = "1.0.228", features = ["derive"] } +tokio = { version = "1.49.0", features = ["macros", "net", "rt-multi-thread", "signal", "sync", "time"] } +toml = "0.9.10" +tracing = "0.1.44" +tracing-subscriber = { version = "0.3.22", features = ["env-filter"] } +sd-notify = "0.4.5" +serde_json = "1.0.148" +zlink = { version = "0.2.0", features = ["introspection"] } +clap_complete = "4.5.65" + +[lib] +name = "donquota_lib" +path = "src/lib.rs" + +[[bin]] +name = "donquotad" +bench = false +path = "src/bin/donquotad.rs" + +[profile.releaselto] +inherits = "release" +strip = true +lto = true +codegen-units = 1 diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..64a3c4a --- /dev/null +++ b/LICENSE @@ -0,0 +1,26 @@ +Copyright (c) 2026, Programvareverkstedet + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..4ee9b1b --- /dev/null +++ b/README.md @@ -0,0 +1,6 @@ +[![Coverage](https://pages.pvv.ntnu.no/Projects/don-quota/main/coverage/badges/for_the_badge.svg)](https://pages.pvv.ntnu.no/Projects/don-quota/main/coverage/) +[![Docs](https://img.shields.io/badge/rust_docs-blue?style=for-the-badge&logo=rust)](https://pages.pvv.ntnu.no/Projects/don-quota/main/docs/don-quota/) + +# DonQuota + +Modern remote [`quotactl(2)`](https://man7.org/linux/man-pages/man2/quotactl.2.html) diff --git a/flake.lock b/flake.lock new file mode 100644 index 0000000..66d0896 --- /dev/null +++ b/flake.lock @@ -0,0 +1,48 @@ +{ + "nodes": { + "nixpkgs": { + "locked": { + "lastModified": 1767116409, + "narHash": "sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw=", + "owner": "NixOS", + "repo": "nixpkgs", + "rev": "cad22e7d996aea55ecab064e84834289143e44a0", + "type": "github" + }, + "original": { + "owner": "NixOS", + "ref": "nixos-unstable", + "repo": "nixpkgs", + "type": "github" + } + }, + "root": { + "inputs": { + "nixpkgs": "nixpkgs", + "rust-overlay": "rust-overlay" + } + }, + "rust-overlay": { + "inputs": { + "nixpkgs": [ + "nixpkgs" + ] + }, + "locked": { + "lastModified": 1767322002, + "narHash": "sha256-yHKXXw2OWfIFsyTjduB4EyFwR0SYYF0hK8xI9z4NIn0=", + "owner": "oxalica", + "repo": "rust-overlay", + "rev": "03c6e38661c02a27ca006a284813afdc461e9f7e", + "type": "github" + }, + "original": { + "owner": "oxalica", + "repo": "rust-overlay", + "type": "github" + } + } + }, + "root": "root", + "version": 7 +} diff --git a/flake.nix b/flake.nix new file mode 100644 index 0000000..a5e5c32 --- /dev/null +++ b/flake.nix @@ -0,0 +1,81 @@ +{ + inputs = { + nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; + + rust-overlay.url = "github:oxalica/rust-overlay"; + rust-overlay.inputs.nixpkgs.follows = "nixpkgs"; + }; + + outputs = { self, nixpkgs, rust-overlay}: + let + inherit (nixpkgs) lib; + + systems = [ + "x86_64-linux" + "aarch64-linux" + "x86_64-darwin" + "aarch64-darwin" + "armv7l-linux" + ]; + + forAllSystems = f: nixpkgs.lib.genAttrs systems (system: let + pkgs = import nixpkgs { + inherit system; + overlays = [ + (import rust-overlay) + ]; + }; + + rust-bin = rust-overlay.lib.mkRustBin { } pkgs.buildPackages; + toolchain = rust-bin.nightly.latest.default.override { + extensions = [ "rust-src" ]; + }; + in f system pkgs toolchain); + in { + devShell = forAllSystems (system: pkgs: toolchain: pkgs.mkShell { + nativeBuildInputs = with pkgs; [ + toolchain + cargo-edit + ]; + + env = { + RUST_SRC_PATH = "${toolchain}/lib/rustlib/src/rust/library"; + RUSTFLAGS = "-Zhigher-ranked-assumptions"; + }; + }); + + overlays = { + default = self.overlays.donquota; + donquota = final: prev: { + inherit (self.packages.${prev.stdenv.hostPlatform.system}) donquota; + }; + }; + + packages = forAllSystems (system: pkgs: _: + let + cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml); + cargoLock = ./Cargo.lock; + src = lib.fileset.toSource { + root = ./.; + fileset = lib.fileset.unions [ + ./src + ./Cargo.toml + ./Cargo.lock + ]; + }; + + rustPlatform = pkgs.makeRustPlatform { + rustc = pkgs.rust-bin.nightly.latest.default; + cargo = pkgs.rust-bin.nightly.latest.cargo; + }; + in { + default = self.packages.${system}.donquota; + + donquota = pkgs.callPackage ./nix/package.nix { inherit cargoToml cargoLock src rustPlatform; }; + + filteredSource = pkgs.runCommandLocal "filtered-source" { } '' + ln -s ${src} $out + ''; + }); + }; +} diff --git a/nix/package.nix b/nix/package.nix new file mode 100644 index 0000000..73b39c4 --- /dev/null +++ b/nix/package.nix @@ -0,0 +1,42 @@ +{ + lib +, rustPlatform +, stdenv +, buildPackages +, installShellFiles + +, cargoToml +, cargoLock +, src +}: +rustPlatform.buildRustPackage { + pname = "donquota"; + inherit (cargoToml.package) version; + inherit src; + + cargoLock.lockFile = cargoLock; + + buildType = "releaselto"; + + RUSTFLAGS = "-Zhigher-ranked-assumptions"; + + nativeBuildInputs = [ installShellFiles ]; + postInstall = let + emulator = stdenv.hostPlatform.emulator buildPackages; + installShellCompletions = lib.mapCartesianProduct ({ shell, command }: '' + ( + export PATH="$out/bin:$PATH" + "${emulator}" "${command}" --completions=${shell} > "$TMP/${command}.${shell}" + ) + installShellCompletion "--${shell}" --cmd "${command}" "$TMP/${command}.${shell}" + '') { + shell = [ "bash" "zsh" "fish" ]; + command = [ "uquota" ]; + }; + in lib.concatStringsSep "\n" installShellCompletions; + + meta = with lib; { + license = licenses.mit; + platforms = platforms.linux ++ platforms.darwin; + }; +} diff --git a/src/bin/donquotad.rs b/src/bin/donquotad.rs new file mode 100644 index 0000000..7126e15 --- /dev/null +++ b/src/bin/donquotad.rs @@ -0,0 +1,91 @@ +use std::{ + collections::HashMap, + os::fd::{AsRawFd, FromRawFd, OwnedFd}, + path::PathBuf, +}; + +use anyhow::Context; +use clap::Parser; +use tracing_subscriber::{EnvFilter, fmt, layer::SubscriberExt, util::SubscriberInitExt}; + +use donquota_lib::server::{config::DEFAULT_CONFIG_PATH, varlink_api::varlink_client_server_task}; + +#[derive(Parser)] +#[command( + author = "Programvareverkstedet ", + about, + version +)] +struct Args { + /// Path to configuration file + #[arg( + short = 'c', + long = "config", + default_value = DEFAULT_CONFIG_PATH, + value_name = "PATH" + )] + config_path: PathBuf, +} + +#[tokio::main] +async fn main() -> anyhow::Result<()> { + let args = Args::parse(); + + tracing_subscriber::registry() + .with(fmt::layer()) + .with(EnvFilter::from_default_env()) + .init(); + + let _config = toml::from_str::( + &std::fs::read_to_string(&args.config_path).context(format!( + "Failed to read configuration file {:?}", + args.config_path, + ))?, + )?; + + let fd_map: HashMap = HashMap::from_iter( + sd_notify::listen_fds_with_names(false)?.map(|(fd_num, name)| { + ( + name.clone(), + // SAFETY: please don't mess around with file descriptors in random places + // around the codebase lol + unsafe { std::os::fd::OwnedFd::from_raw_fd(fd_num) }, + ) + }), + ); + + let mut join_set = tokio::task::JoinSet::new(); + + join_set.spawn(client_server( + fd_map + .get("client_socket") + .context("DonQuote client-server socket fd not provided by systemd")? + .try_clone() + .context("Failed to clone DonQuote client-server socket fd")?, + )); + + join_set.spawn(ctrl_c_handler()); + + join_set.join_next().await.unwrap()??; + + Ok(()) +} + +async fn ctrl_c_handler() -> anyhow::Result<()> { + tokio::signal::ctrl_c() + .await + .map_err(|e| anyhow::anyhow!("Failed to listen for Ctrl-C: {}", e)) +} + +async fn client_server(socket_fd: OwnedFd) -> anyhow::Result<()> { + // SAFETY: see above + let std_socket = + unsafe { std::os::unix::net::UnixListener::from_raw_fd(socket_fd.as_raw_fd()) }; + std_socket.set_nonblocking(true)?; + let zlink_listener = zlink::unix::Listener::try_from(OwnedFd::from(std_socket))?; + let client_server_task = varlink_client_server_task(zlink_listener); + + client_server_task.await?; + + Ok(()) +} diff --git a/src/bin/uquota.rs b/src/bin/uquota.rs new file mode 100644 index 0000000..e69de29 diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..c6eebbb --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,2 @@ +pub mod proto; +pub mod server; diff --git a/src/proto.rs b/src/proto.rs new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/src/proto.rs @@ -0,0 +1 @@ + diff --git a/src/server.rs b/src/server.rs new file mode 100644 index 0000000..476d84b --- /dev/null +++ b/src/server.rs @@ -0,0 +1,2 @@ +pub mod config; +pub mod varlink_api; diff --git a/src/server/config.rs b/src/server/config.rs new file mode 100644 index 0000000..241c356 --- /dev/null +++ b/src/server/config.rs @@ -0,0 +1,13 @@ +use serde::{Deserialize, Serialize}; + +pub const DEFAULT_CONFIG_PATH: &str = "/etc/donquota/config.toml"; + +pub const DEFAULT_CLIENT_SOCKET_PATH: &str = "/run/donquota/server_client.sock"; + +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +pub struct Config { + /// Path to the Unix domain socket for client-server communication. + /// + /// If left as `None`, the server expects to be served a file descriptor to the socket named 'client'. + pub client_socket_path: Option, +} diff --git a/src/server/varlink_api.rs b/src/server/varlink_api.rs new file mode 100644 index 0000000..b7c373f --- /dev/null +++ b/src/server/varlink_api.rs @@ -0,0 +1,86 @@ +use anyhow::Context; +use serde::{Deserialize, Serialize}; +use zlink::{ReplyError, service::MethodReply}; + +#[zlink::proxy("no.ntnu.pvv.donquota")] +pub trait DonQuotaClientProxy { + async fn uquota(&mut self, all: bool) -> zlink::Result>; +} + +#[derive(Debug, Deserialize)] +#[serde(tag = "method", content = "parameters")] +pub enum DonQuotaClientRequest { + #[serde(rename = "no.ntnu.pvv.donquota.Uquota")] + Uquota, +} + +#[derive(Debug, Serialize)] +#[serde(untagged)] +pub enum DonQuotaClientResponse { + Uquota(UquotaResponse), +} + +pub type UquotaResponse = (); + +#[derive(Debug, ReplyError)] +#[zlink(interface = "no.ntnu.pvv.donquota")] +pub enum DonQuotaClientError { + InvalidRequest, +} + +#[derive(Debug, Clone)] +pub struct DonQuotaClientServer; + +impl Default for DonQuotaClientServer { + fn default() -> Self { + Self::new() + } +} + +impl DonQuotaClientServer { + pub fn new() -> Self { + Self + } +} + +impl DonQuotaClientServer { + async fn handle_uquota_request(&self) -> UquotaResponse { + + } +} + +impl zlink::Service for DonQuotaClientServer { + type MethodCall<'de> = DonQuotaClientRequest; + type ReplyParams<'se> = DonQuotaClientResponse; + type ReplyStreamParams = (); + type ReplyStream = futures_util::stream::Empty>; + type ReplyError<'se> = DonQuotaClientError; + + async fn handle<'ser, 'de: 'ser, Sock: zlink::connection::Socket>( + &'ser mut self, + call: zlink::Call>, + _conn: &mut zlink::Connection, + ) -> MethodReply, Self::ReplyStream, Self::ReplyError<'ser>> { + match call.method() { + DonQuotaClientRequest::Uquota => { + let response = self.handle_uquota_request().await; + MethodReply::Single(Some(DonQuotaClientResponse::Uquota(response))) + } + } + } +} + +pub async fn varlink_client_server_task(socket: zlink::unix::Listener) -> anyhow::Result<()> { + let service = DonQuotaClientServer::new(); + + let server = zlink::Server::new(socket, service); + + tracing::info!("Starting DonQuota client API server"); + + server + .run() + .await + .context("DonQuota client API server failed")?; + + Ok(()) +}