fido2luks/src/error.rs
2020-01-13 17:44:51 +01:00

78 lines
2.2 KiB
Rust

use ctap::FidoError;
use std::io;
pub type Fido2LuksResult<T> = Result<T, Fido2LuksError>;
#[derive(Debug, Fail)]
pub enum Fido2LuksError {
#[fail(display = "unable to retrieve password: {}", cause)]
AskPassError { cause: AskPassError },
#[fail(display = "unable to read keyfile: {}", cause)]
KeyfileError { cause: io::Error },
#[fail(display = "authenticator error: {}", cause)]
AuthenticatorError { cause: ctap::FidoError },
#[fail(display = "no authenticator found, please ensure your device is plugged in")]
NoAuthenticatorError,
#[fail(display = "luks err")]
LuksError { cause: cryptsetup_rs::device::Error },
#[fail(display = "no authenticator found, please ensure your device is plugged in")]
IoError { cause: io::Error },
#[fail(display = "supplied secret isn't valid for this device")]
WrongSecret,
#[fail(display = "not an utf8 string")]
StringEncodingError { cause: FromUtf8Error },
}
impl Fido2LuksError {
pub fn exit_code(&self) -> i32 {
use Fido2LuksError::*;
match self {
AskPassError { .. } | KeyfileError { .. } => 2,
AuthenticatorError { .. } => 3,
NoAuthenticatorError => 4,
WrongSecret => 5,
_ => 1,
}
}
}
#[derive(Debug, Fail)]
pub enum AskPassError {
#[fail(display = "unable to retrieve password: {}", _0)]
IO(io::Error),
#[fail(display = "provided passwords don't match")]
Mismatch,
}
use std::string::FromUtf8Error;
use Fido2LuksError::*;
impl From<FidoError> for Fido2LuksError {
fn from(e: FidoError) -> Self {
AuthenticatorError { cause: e }
}
}
impl From<cryptsetup_rs::device::Error> for Fido2LuksError {
fn from(e: cryptsetup_rs::device::Error) -> Self {
match e {
cryptsetup_rs::device::Error::CryptsetupError(error_no) if error_no.0 == 1i32 => {
WrongSecret
}
e => LuksError { cause: e },
}
}
}
impl From<io::Error> for Fido2LuksError {
fn from(e: io::Error) -> Self {
IoError { cause: e }
}
}
impl From<FromUtf8Error> for Fido2LuksError {
fn from(e: FromUtf8Error) -> Self {
StringEncodingError { cause: e }
}
}