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use clap::{crate_authors, crate_description, crate_name, SubCommand};
use mullvad_management_interface::new_rpc_client;
use std::process;
use talpid_core::firewall::{self, Firewall, FirewallArguments};
use talpid_types::ErrorExt;
pub const PRODUCT_VERSION: &str = include_str!(concat!(env!("OUT_DIR"), "/product-version.txt"));
#[derive(err_derive::Error, Debug)]
pub enum Error {
#[error(display = "Failed to connect to RPC client")]
RpcConnectionError(#[error(source)] mullvad_management_interface::Error),
#[error(display = "RPC call failed")]
DaemonRpcError(#[error(source)] mullvad_management_interface::Status),
#[error(display = "This command cannot be run if the daemon is active")]
DaemonIsRunning,
#[error(display = "Firewall error")]
FirewallError(#[error(source)] firewall::Error),
}
#[tokio::main]
async fn main() {
env_logger::init();
let subcommands = vec![
SubCommand::with_name("prepare-restart")
.about("Move a running daemon into a blocking state and save its target state"),
SubCommand::with_name("reset-firewall")
.about("Remove any firewall rules introduced by the daemon"),
];
let app = clap::App::new(crate_name!())
.version(PRODUCT_VERSION)
.author(crate_authors!())
.about(crate_description!())
.setting(clap::AppSettings::SubcommandRequiredElseHelp)
.global_settings(&[
clap::AppSettings::DisableHelpSubcommand,
clap::AppSettings::VersionlessSubcommands,
])
.subcommands(subcommands);
let matches = app.get_matches();
let result = match matches.subcommand_name().expect("Subcommand has no name") {
"prepare-restart" => prepare_restart().await,
"reset-firewall" => reset_firewall().await,
_ => unreachable!("No command matched"),
};
if let Err(e) = result {
eprintln!("{}", e.display_chain());
process::exit(1);
}
}
async fn prepare_restart() -> Result<(), Error> {
let mut rpc = new_rpc_client().await?;
rpc.prepare_restart(())
.await
.map_err(Error::DaemonRpcError)?;
Ok(())
}
async fn reset_firewall() -> Result<(), Error> {
// Ensure that the daemon isn't running
if let Ok(_) = new_rpc_client().await {
return Err(Error::DaemonIsRunning);
}
let mut firewall = Firewall::new(FirewallArguments {
initialize_blocked: false,
allow_lan: true,
})
.map_err(Error::FirewallError)?;
firewall.reset_policy().map_err(Error::FirewallError)
}
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