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use std::{fmt, io, net, time};
use tokio::sync::watch;
#[derive(Debug)]
pub enum Error {
LeaseNotFound,
NoClientId,
NoDns,
NoIAPD,
NoIAPrefix,
NoServerId,
PartialSend(usize, usize),
TooFewDns(usize),
WrongClientId(String, String),
WrongServerId(String, String),
AddrParse(net::AddrParseError),
Io(io::Error),
SystemTime(time::SystemTimeError),
WatchRecv(watch::error::RecvError),
DhcprotoDecode(dhcproto::error::DecodeError),
DhcprotoEncode(dhcproto::error::EncodeError),
SerdeJson(serde_json::Error),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::LeaseNotFound => write!(f, "lease has been obtained but doesn't exist")?,
Self::NoClientId => write!(f, "server did not include a client id option")?,
Self::NoDns => write!(f, "server did not include a domain name servers option")?,
Self::NoIAPD => write!(f, "server did not include an ia_pd option")?,
Self::NoIAPrefix => write!(
f,
"server did not include an ia_prefix option in the ia_pd option"
)?,
Self::NoServerId => write!(f, "server did not include a server id option")?,
Self::PartialSend(want, got) => write!(
f,
"unable to send full packet (expected {}, got {})",
want, got
)?,
Self::TooFewDns(n) => write!(
f,
"too few domain name servers (expected at least 2, got {})",
n
)?,
Self::WrongClientId(want, got) => write!(
f,
"received packet with wrong client duid (expected {}, got {})",
want, got
)?,
Self::WrongServerId(want, got) => write!(
f,
"received packet with wrong server duid (expected {}, got {})",
want, got
)?,
Self::AddrParse(e) => write!(f, "can't parse network address: {}", e)?,
Self::Io(e) => write!(f, "io error: {}", e)?,
Self::SystemTime(e) => write!(f, "system time monotonicity error: {}", e)?,
Self::WatchRecv(e) => write!(f, "can't receive from tokio watch channel: {}", e)?,
Self::DhcprotoDecode(e) => write!(f, "dhcproto decode error: {}", e)?,
Self::DhcprotoEncode(e) => write!(f, "dhcproto encode error: {}", e)?,
Self::SerdeJson(e) => write!(f, "serde_json error: {}", e)?,
}
Ok(())
}
}
impl From<net::AddrParseError> for Error {
fn from(e: net::AddrParseError) -> Error {
Error::AddrParse(e)
}
}
impl From<io::Error> for Error {
fn from(e: io::Error) -> Error {
Error::Io(e)
}
}
impl From<time::SystemTimeError> for Error {
fn from(e: time::SystemTimeError) -> Error {
Error::SystemTime(e)
}
}
impl From<watch::error::RecvError> for Error {
fn from(e: watch::error::RecvError) -> Error {
Error::WatchRecv(e)
}
}
impl From<dhcproto::error::DecodeError> for Error {
fn from(e: dhcproto::error::DecodeError) -> Error {
Error::DhcprotoDecode(e)
}
}
impl From<dhcproto::error::EncodeError> for Error {
fn from(e: dhcproto::error::EncodeError) -> Error {
Error::DhcprotoEncode(e)
}
}
impl From<serde_json::Error> for Error {
fn from(e: serde_json::Error) -> Error {
Error::SerdeJson(e)
}
}
impl std::error::Error for Error {}
pub type Result<T> = std::result::Result<T, Error>;
|
