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use crate::{Deserialize, Error, Result, Serialize};
use std::io::{Read, Write};
use ppproperly_macros::{Deserialize, Serialize};
pub const PAP_AUTH_REQUEST: u8 = 1;
pub const PAP_AUTH_ACK: u8 = 2;
pub const PAP_AUTH_NAK: u8 = 3;
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum PapData {
AuthenticateRequest(PapAuthenticateRequest),
AuthenticateAck(PapAuthenticateAck),
AuthenticateNak(PapAuthenticateNak),
}
impl Default for PapData {
fn default() -> Self {
Self::AuthenticateRequest(PapAuthenticateRequest::default())
}
}
impl Serialize for PapData {
fn serialize<W: Write>(&self, w: &mut W) -> Result<()> {
match self {
Self::AuthenticateRequest(payload) => payload.serialize(w),
Self::AuthenticateAck(payload) => payload.serialize(w),
Self::AuthenticateNak(payload) => payload.serialize(w),
}
}
}
impl PapData {
fn discriminant(&self) -> u8 {
match self {
Self::AuthenticateRequest(_) => PAP_AUTH_REQUEST,
Self::AuthenticateAck(_) => PAP_AUTH_ACK,
Self::AuthenticateNak(_) => PAP_AUTH_NAK,
}
}
fn len(&self) -> u16 {
match self {
Self::AuthenticateRequest(payload) => payload.len(),
Self::AuthenticateAck(payload) => payload.len(),
Self::AuthenticateNak(payload) => payload.len(),
}
}
fn deserialize_with_discriminant<R: Read>(
&mut self,
r: &mut R,
discriminant: &u8,
) -> Result<()> {
match *discriminant {
PAP_AUTH_REQUEST => {
let mut tmp = PapAuthenticateRequest::default();
tmp.deserialize(r)?;
*self = Self::AuthenticateRequest(tmp);
}
PAP_AUTH_ACK => {
let mut tmp = PapAuthenticateAck::default();
tmp.deserialize(r)?;
*self = Self::AuthenticateAck(tmp);
}
PAP_AUTH_NAK => {
let mut tmp = PapAuthenticateNak::default();
tmp.deserialize(r)?;
*self = Self::AuthenticateNak(tmp);
}
_ => return Err(Error::InvalidPapCode(*discriminant)),
}
Ok(())
}
}
#[derive(Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize)]
pub struct PapPkt {
#[ppproperly(discriminant_for(field = "data", data_type = "u8"))]
pub identifier: u8,
#[ppproperly(len_for(field = "data", offset = 4, data_type = "u16"))]
pub data: PapData,
}
impl PapPkt {
pub fn new_authenticate_request(identifier: u8, peer_id: String, passwd: String) -> Self {
Self {
identifier,
data: PapData::AuthenticateRequest(PapAuthenticateRequest { peer_id, passwd }),
}
}
pub fn new_authenticate_ack(identifier: u8, msg: String) -> Self {
Self {
identifier,
data: PapData::AuthenticateAck(PapAuthenticateAck { msg }),
}
}
pub fn new_authenticate_nak(identifier: u8, msg: String) -> Self {
Self {
identifier,
data: PapData::AuthenticateNak(PapAuthenticateNak { msg }),
}
}
pub fn len(&self) -> u16 {
4 + self.data.len()
}
pub fn is_empty(&self) -> bool {
self.len() == 4
}
}
#[derive(Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize)]
pub struct PapAuthenticateRequest {
#[ppproperly(len_for(field = "peer_id", offset = 0, data_type = "u8"))]
pub peer_id: String,
#[ppproperly(len_for(field = "passwd", offset = 0, data_type = "u8"))]
pub passwd: String,
}
impl PapAuthenticateRequest {
pub fn len(&self) -> u16 {
(2 + self.peer_id.len() + self.passwd.len())
.try_into()
.unwrap()
}
pub fn is_empty(&self) -> bool {
self.len() == 2
}
}
#[derive(Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize)]
pub struct PapAuthenticateAck {
#[ppproperly(len_for(field = "msg", offset = 0, data_type = "u8"))]
pub msg: String,
}
impl PapAuthenticateAck {
pub fn len(&self) -> u16 {
(1 + self.msg.len()).try_into().unwrap()
}
pub fn is_empty(&self) -> bool {
self.len() == 1
}
}
#[derive(Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize)]
pub struct PapAuthenticateNak {
#[ppproperly(len_for(field = "msg", offset = 0, data_type = "u8"))]
pub msg: String,
}
impl PapAuthenticateNak {
pub fn len(&self) -> u16 {
(1 + self.msg.len()).try_into().unwrap()
}
pub fn is_empty(&self) -> bool {
self.len() == 1
}
}
|
