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GPG key ID:
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||||
"windows_x86_64_gnu 0.52.6",
|
||||
"windows_x86_64_gnullvm 0.52.6",
|
||||
"windows_x86_64_msvc 0.52.6",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.48.5"
|
||||
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|
||||
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|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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|
||||
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
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|
||||
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|
||||
checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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|
||||
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||||
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||||
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|
||||
|
||||
[[package]]
|
||||
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|
||||
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|
||||
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|
||||
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
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||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
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||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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||||
|
||||
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|
||||
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||||
version = "0.52.6"
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||||
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||||
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.48.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||
22
Cargo.toml
Normal file
22
Cargo.toml
Normal file
|
|
@ -0,0 +1,22 @@
|
|||
[package]
|
||||
name = "rust-dms"
|
||||
version = "0.1.0"
|
||||
edition = "2024"
|
||||
description = """
|
||||
A tiny utility to execute certain actions on upon a disconnection of any given USB device.
|
||||
"""
|
||||
authors = ["nm17"]
|
||||
license = "MIT OR Apache-2.0"
|
||||
readme = "README.md"
|
||||
repository = "https://git.dc09.ru/nm17/rust-dms"
|
||||
homepage = "https://git.dc09.ru/nm17/rust-dms"
|
||||
|
||||
[dependencies]
|
||||
clap = { version = "4.5.32", features = ["derive"] }
|
||||
clap-verbosity-flag = "3.0.2"
|
||||
hex = { version = "0.4.3" }
|
||||
libc = { version = "0.2.171", default-features = false }
|
||||
log = "0.4.26"
|
||||
nusb = "0.1.13"
|
||||
signal-hook = "0.3.17"
|
||||
snafu = "0.8.5"
|
||||
201
LICENSE-APACHE
Normal file
201
LICENSE-APACHE
Normal file
|
|
@ -0,0 +1,201 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
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|
||||
|
||||
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|
||||
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|
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|
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25
LICENSE-MIT
Normal file
25
LICENSE-MIT
Normal file
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@ -0,0 +1,25 @@
|
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Copyright (c) 2025 Даниил Николаев (nm17)
|
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|
||||
30
README.md
Normal file
30
README.md
Normal file
|
|
@ -0,0 +1,30 @@
|
|||
# Rust-DMS (Dead man switch)
|
||||
|
||||
A tiny utility to execute certain actions on upon a disconnection of any given USB device.
|
||||
|
||||
This project is meant to be as simple and reliable as possible. It shouldn't need continious updates or testing.
|
||||
It doesn't have a web or terminal UI, all options are supplied from CLI arguments only.
|
||||
This makes it easy to understand and configure, compared to configuring from config files or .env files/variables.
|
||||
|
||||
## How to install
|
||||
|
||||
```
|
||||
$ cargo install rust-dms
|
||||
```
|
||||
|
||||
## Similar projects
|
||||
### dead-man-switch
|
||||
|
||||
A bit too complex for what I need, but if you really need a TUI and Web UI for your deadman switch - use it.
|
||||
|
||||
## License
|
||||
|
||||
The crate is licensed under either of:
|
||||
|
||||
- Apache License, Version 2.0
|
||||
- MIT license
|
||||
|
||||
at your option.
|
||||
|
||||
## Contribution
|
||||
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
|
||||
43
src/cli.rs
Normal file
43
src/cli.rs
Normal file
|
|
@ -0,0 +1,43 @@
|
|||
use clap_verbosity_flag::Verbosity;
|
||||
|
||||
#[derive(clap::Parser)]
|
||||
/// A simple dead man switch based on USB devices.
|
||||
pub struct Cli {
|
||||
#[command(flatten)]
|
||||
pub verbosity: Verbosity,
|
||||
|
||||
/// The amount of time in miliseconds to sleep between checks.
|
||||
#[clap(short, long, default_value_t = 100.0, value_name = "ms")]
|
||||
pub sleep_time: f64,
|
||||
|
||||
/// Ignore the following signals from being handled by the usual means.
|
||||
///
|
||||
/// The signals SIGKILL and SIGSTOP cannot be caught, blocked, or ignored.
|
||||
#[cfg(target_os = "linux")]
|
||||
#[clap(short, long = "prevent-signal", value_name = "SIGNAL", default_values = ["SIGQUIT", "SIGABRT"])]
|
||||
pub prevent_signals: Vec<String>,
|
||||
|
||||
/// Do not actually do any changes, only print what would be executed.
|
||||
#[clap(short, long, default_value_t = false)]
|
||||
pub dry_run: bool,
|
||||
|
||||
/// Determines if we exit after executing all the main actions or not.
|
||||
///
|
||||
/// Not useful if your actions shutdown the system.
|
||||
#[clap(short = 'c', long, default_value_t = false)]
|
||||
pub continue_on_unplug: bool,
|
||||
|
||||
/// Actions to take if the device is not plugged in to begin with.
|
||||
#[clap(short = 'N', long, value_name = "ACTION")]
|
||||
pub not_plugged_on_boot_actions: Vec<String>,
|
||||
|
||||
/// The USB Vendor ID of the dead man switch device.
|
||||
pub vid: String,
|
||||
|
||||
/// The USB Product ID of the dead man switch device.
|
||||
pub pid: String,
|
||||
|
||||
/// List of shell commands to execute on device being unplugged.
|
||||
#[clap(required = true, value_name = "ACTION")]
|
||||
pub actions: Vec<String>,
|
||||
}
|
||||
40
src/error.rs
Normal file
40
src/error.rs
Normal file
|
|
@ -0,0 +1,40 @@
|
|||
use std::array::TryFromSliceError;
|
||||
|
||||
use hex::FromHexError;
|
||||
use snafu::Snafu;
|
||||
|
||||
type AnyError = Box<dyn std::error::Error + Send + Sync>;
|
||||
|
||||
#[derive(Debug, Snafu)]
|
||||
#[snafu(visibility(pub))]
|
||||
pub enum MyError {
|
||||
#[snafu(display("Error while parsing hex values: {message}"))]
|
||||
FromHex {
|
||||
source: FromHexError,
|
||||
message: &'static str,
|
||||
},
|
||||
#[snafu(display("Invalid slice length, expected = {expected_len}, got = {got}"))]
|
||||
TryFromSlice {
|
||||
source: TryFromSliceError,
|
||||
expected_len: usize,
|
||||
got: usize,
|
||||
},
|
||||
#[snafu(display("Error while getting the USB list: {message}"))]
|
||||
USB {
|
||||
source: nusb::Error,
|
||||
message: &'static str,
|
||||
},
|
||||
#[snafu(display("Device not found on first run"))]
|
||||
DeviceNotFound {},
|
||||
#[snafu(display("Device not found on first run"))]
|
||||
StdIO {
|
||||
source: std::io::Error,
|
||||
message: &'static str,
|
||||
},
|
||||
#[snafu(whatever, display("{message}"))]
|
||||
Whatever {
|
||||
message: String,
|
||||
#[snafu(source(from(AnyError, Some)))]
|
||||
source: Option<AnyError>,
|
||||
},
|
||||
}
|
||||
125
src/main.rs
Normal file
125
src/main.rs
Normal file
|
|
@ -0,0 +1,125 @@
|
|||
#![doc = include_str!("../README.md")]
|
||||
|
||||
pub mod cli;
|
||||
pub mod error;
|
||||
|
||||
#[cfg(target_os = "linux")]
|
||||
pub mod signal_handler;
|
||||
|
||||
use std::{
|
||||
process::{Command, exit},
|
||||
thread::sleep,
|
||||
time::Duration,
|
||||
};
|
||||
|
||||
use clap::Parser;
|
||||
use cli::Cli;
|
||||
use error::*;
|
||||
use log::{info, trace};
|
||||
use snafu::ResultExt;
|
||||
|
||||
pub fn check_if_plugged(pid: u16, vid: u16, first_run: bool) -> Result<bool, MyError> {
|
||||
let device_iter = nusb::list_devices();
|
||||
|
||||
if device_iter.is_err() {
|
||||
if first_run {
|
||||
let _ = device_iter.context(USBSnafu {
|
||||
message: "Getting the device list for the first time",
|
||||
})?;
|
||||
unreachable!();
|
||||
} else {
|
||||
dbg!(&device_iter.err());
|
||||
return Ok(false);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(device_iter
|
||||
.unwrap()
|
||||
.any(|dev| dev.vendor_id() == vid && dev.product_id() == pid))
|
||||
}
|
||||
|
||||
pub fn execute_actions(cli: &Cli, actions: impl Iterator<Item = impl AsRef<str>>) {
|
||||
for action in actions {
|
||||
let action = action.as_ref();
|
||||
if cli.dry_run {
|
||||
info!("[Dry run] {}", action);
|
||||
continue;
|
||||
}
|
||||
let mut cmd = Command::new(
|
||||
std::env::var_os("SHELL")
|
||||
.map(|el| el.into_string().unwrap())
|
||||
.unwrap_or_else(|| "/bin/sh".to_string()),
|
||||
);
|
||||
cmd.args(["-c", action]);
|
||||
let mut handle = cmd.spawn().expect("Can't start the shell");
|
||||
let _ = handle.wait().expect("Error waiting for the action");
|
||||
}
|
||||
}
|
||||
|
||||
#[snafu::report]
|
||||
fn main() -> Result<(), MyError> {
|
||||
let cli = Cli::parse();
|
||||
|
||||
if cfg!(target_os = "linux") {
|
||||
use signal_handler::handle_signals;
|
||||
let _signals_handler = handle_signals(&cli)?;
|
||||
}
|
||||
|
||||
let (pid, vid) = (
|
||||
hex::decode(cli.pid.clone()).context(FromHexSnafu {
|
||||
message: "Invalid PID",
|
||||
})?,
|
||||
hex::decode(cli.vid.clone()).context(FromHexSnafu {
|
||||
message: "Invalid VID",
|
||||
})?,
|
||||
);
|
||||
|
||||
let (pid, vid) = (
|
||||
u16::from_be_bytes(
|
||||
pid.as_slice()
|
||||
.try_into()
|
||||
.with_context(|_| TryFromSliceSnafu {
|
||||
expected_len: 2usize,
|
||||
got: pid.len(),
|
||||
})?,
|
||||
),
|
||||
u16::from_be_bytes(
|
||||
vid.as_slice()
|
||||
.try_into()
|
||||
.with_context(|_| TryFromSliceSnafu {
|
||||
expected_len: 2usize,
|
||||
got: vid.len(),
|
||||
})?,
|
||||
),
|
||||
);
|
||||
|
||||
let first_check = check_if_plugged(pid, vid, true);
|
||||
if let Err(ref _first_check_err) = first_check {
|
||||
if !cli.not_plugged_on_boot_actions.is_empty() {
|
||||
execute_actions(&cli, cli.not_plugged_on_boot_actions.iter());
|
||||
|
||||
exit(1);
|
||||
} else {
|
||||
let _ = first_check?;
|
||||
unreachable!();
|
||||
}
|
||||
}
|
||||
|
||||
info!("Successfully got through the first iteration of the loop");
|
||||
|
||||
loop {
|
||||
sleep(Duration::from_micros(
|
||||
(cli.sleep_time * 1000.).round() as u64
|
||||
));
|
||||
|
||||
if !(check_if_plugged(pid, vid, false)?) {
|
||||
execute_actions(&cli, cli.actions.iter());
|
||||
|
||||
if !cli.continue_on_unplug {
|
||||
exit(1);
|
||||
}
|
||||
} else {
|
||||
trace!("Device plugged in")
|
||||
}
|
||||
}
|
||||
}
|
||||
35
src/signal_handler/consts.rs
Normal file
35
src/signal_handler/consts.rs
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
pub const STDIN_FILENO: i32 = 0;
|
||||
pub const STDOUT_FILENO: i32 = 1;
|
||||
pub const STDERR_FILENO: i32 = 2;
|
||||
pub const SIGHUP: i32 = 1;
|
||||
pub const SIGINT: i32 = 2;
|
||||
pub const SIGQUIT: i32 = 3;
|
||||
pub const SIGILL: i32 = 4;
|
||||
pub const SIGTRAP: i32 = 5;
|
||||
pub const SIGABRT: i32 = 6;
|
||||
pub const SIGFPE: i32 = 8;
|
||||
pub const SIGKILL: i32 = 9;
|
||||
pub const SIGSEGV: i32 = 11;
|
||||
pub const SIGPIPE: i32 = 13;
|
||||
pub const SIGALRM: i32 = 14;
|
||||
pub const SIGTERM: i32 = 15;
|
||||
pub const SIGTTIN: i32 = 21;
|
||||
pub const SIGTTOU: i32 = 22;
|
||||
pub const SIGXCPU: i32 = 24;
|
||||
pub const SIGXFSZ: i32 = 25;
|
||||
pub const SIGVTALRM: i32 = 26;
|
||||
pub const SIGPROF: i32 = 27;
|
||||
pub const SIGWINCH: i32 = 28;
|
||||
pub const SIGCHLD: i32 = 17;
|
||||
pub const SIGBUS: i32 = 7;
|
||||
pub const SIGUSR1: i32 = 10;
|
||||
pub const SIGUSR2: i32 = 12;
|
||||
pub const SIGCONT: i32 = 18;
|
||||
pub const SIGSTOP: i32 = 19;
|
||||
pub const SIGTSTP: i32 = 20;
|
||||
pub const SIGURG: i32 = 23;
|
||||
pub const SIGIO: i32 = 29;
|
||||
pub const SIGSYS: i32 = 31;
|
||||
pub const SIGSTKFLT: i32 = 16;
|
||||
pub const SIGPOLL: i32 = 29;
|
||||
pub const SIGPWR: i32 = 30;
|
||||
58
src/signal_handler/mod.rs
Normal file
58
src/signal_handler/mod.rs
Normal file
|
|
@ -0,0 +1,58 @@
|
|||
pub mod consts;
|
||||
|
||||
use std::{
|
||||
collections::HashMap,
|
||||
thread::{self, JoinHandle},
|
||||
};
|
||||
|
||||
use libc::*;
|
||||
use log::warn;
|
||||
use signal_hook::iterator::Signals;
|
||||
use snafu::ResultExt;
|
||||
|
||||
use crate::{
|
||||
cli::Cli,
|
||||
error::{MyError, StdIOSnafu},
|
||||
};
|
||||
|
||||
pub fn handle_signals(cli: &Cli) -> Result<JoinHandle<()>, MyError> {
|
||||
let signals: HashMap<&str, i32> = [
|
||||
("SIGHUP", SIGHUP),
|
||||
("SIGINT", SIGINT),
|
||||
("SIGQUIT", SIGQUIT),
|
||||
("SIGILL", SIGILL),
|
||||
("SIGTRAP", SIGTRAP),
|
||||
("SIGABRT", SIGABRT),
|
||||
("SIGBUS", SIGBUS),
|
||||
("SIGFPE", SIGFPE),
|
||||
("SIGKILL", SIGKILL),
|
||||
("SIGUSR1", SIGUSR1),
|
||||
("SIGSEGV", SIGSEGV),
|
||||
("SIGUSR2", SIGUSR2),
|
||||
("SIGPIPE", SIGPIPE),
|
||||
("SIGALRM", SIGALRM),
|
||||
("SIGTERM", SIGTERM),
|
||||
("SIGCHLD", SIGCHLD),
|
||||
("SIGCONT", SIGCONT),
|
||||
("SIGSTOP", SIGSTOP),
|
||||
("SIGTSTP", SIGTSTP),
|
||||
("SIGTTIN", SIGTTIN),
|
||||
("SIGTTOU", SIGTTOU),
|
||||
]
|
||||
.into();
|
||||
|
||||
let mut signals = Signals::new(
|
||||
cli.prevent_signals
|
||||
.iter()
|
||||
.map(|el| signals.get(el.as_str()).unwrap()),
|
||||
)
|
||||
.context(StdIOSnafu {
|
||||
message: "Could not setup the signal catcher",
|
||||
})?;
|
||||
|
||||
Ok(thread::spawn(move || {
|
||||
for sig in signals.forever() {
|
||||
warn!("Received signal {:?}", sig);
|
||||
}
|
||||
}))
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue