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use std::io;
use std::string;
use std::sync::mpsc;
use rsdsl_ip_config::IpConfig;
use thiserror::Error;
#[derive(Debug, Error)]
pub enum Error {
#[error("client already started")]
AlreadyActive,
#[error("no active PPPoE session")]
NoSession,
#[error("bytes sent not equal to pkt size")]
PartialTransmission,
#[error("too many retransmissions: {0}")]
TooManyRetransmissions(String),
#[error("invalid pkt code {0}")]
InvalidCode(u8),
#[error("unexpected pads")]
UnexpectedPads,
#[error("session id can't be zero")]
ZeroSession,
#[error("unexpected ppp session traffic")]
UnexpectedPpp,
#[error("invalid ppp sub-protocol {0}")]
InvalidProtocol(u16),
#[error("invalid lcp code {0}")]
InvalidLcpCode(u8),
#[error("configure-ack, but opts don't match req")]
AckedWrongOptions,
#[error("configure-nak")]
ConfigNak,
#[error("configure-reject")]
ConfigReject,
#[error("unexpected lcp terminate-ack")]
UnexpectedTermAck,
#[error("invalid chap code {0}")]
InvalidChapCode(u8),
#[error("invalid ipcp code {0}")]
InvalidIpcpCode(u8),
#[error("no ip addr in ipcp configure-nak")]
MissingIpAddr,
#[error("no dns1 in ipcp configure-nak")]
MissingPrimaryDns,
#[error("no dns2 in ipcp configure-nak")]
MissingSecondaryDns,
#[error("ipcp closed")]
Disconnected,
#[error("io error")]
Io(#[from] io::Error),
#[error("can't create string from UTF-8")]
Utf8(#[from] string::FromUtf8Error),
#[error("mpsc send error")]
MpscSendBytes(#[from] mpsc::SendError<Vec<u8>>),
#[error("mpsc send error")]
MpscSendBytesOpt(#[from] mpsc::SendError<Option<Vec<u8>>>),
#[error("mpsc send error")]
MpscSendIpConfig(#[from] mpsc::SendError<IpConfig>),
#[error("mpsc recv error")]
MpscRecv(#[from] mpsc::RecvError),
#[error("pppoe error: {0:?}")]
Pppoe(pppoe::error::Error),
#[error("pppoe parse error: {0:?}")]
PppoeParse(pppoe::error::ParseError),
#[error("rsdsl_netlinkd error")]
RsdslNetlinkd(#[from] rsdsl_netlinkd::error::Error),
#[error("serde_json error")]
SerdeJson(#[from] serde_json::Error),
}
impl From<pppoe::error::Error> for Error {
fn from(err: pppoe::error::Error) -> Self {
Self::Pppoe(err)
}
}
impl From<pppoe::error::ParseError> for Error {
fn from(err: pppoe::error::ParseError) -> Self {
Self::PppoeParse(err)
}
}
pub type Result<T> = std::result::Result<T, Error>;
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