ipmi_rs/app/auth/
get_session_challenge.rs

1use std::num::NonZeroU32;
2
3use crate::connection::{CompletionCode, IpmiCommand, Message, NetFn, ParseResponseError};
4
5use super::{AuthError, AuthType};
6
7#[derive(Debug, Clone, Copy)]
8pub struct SessionChallenge {
9    pub temporary_session_id: NonZeroU32,
10    pub challenge_string: [u8; 16],
11}
12
13#[derive(Debug, Clone, Copy, PartialEq)]
14pub struct GetSessionChallenge {
15    auth_type: AuthType,
16    username: [u8; 16],
17}
18
19impl GetSessionChallenge {
20    pub fn new(auth_type: AuthType, username: Option<&str>) -> Option<Self> {
21        let bytes = username.map(|u| u.as_bytes()).unwrap_or(&[]);
22        if bytes.len() > 16 {
23            return None;
24        }
25
26        let mut username = [0u8; 16];
27        username[..bytes.len()].copy_from_slice(bytes);
28
29        Some(Self {
30            auth_type,
31            username,
32        })
33    }
34
35    pub fn auth_type(&self) -> AuthType {
36        self.auth_type
37    }
38
39    pub fn username(&self) -> &str {
40        let end = self.username.iter().take_while(|v| **v != 0).count();
41        unsafe { core::str::from_utf8_unchecked(&self.username[..end]) }
42    }
43}
44
45impl From<GetSessionChallenge> for Message {
46    fn from(value: GetSessionChallenge) -> Message {
47        let mut data = vec![0u8; 17];
48
49        data[0] = value.auth_type.into();
50        data[1..].copy_from_slice(&value.username);
51
52        Message::new_request(NetFn::App, 0x39, data)
53    }
54}
55
56impl IpmiCommand for GetSessionChallenge {
57    type Output = SessionChallenge;
58
59    type Error = AuthError;
60
61    fn parse_response(
62        completion_code: CompletionCode,
63        data: &[u8],
64    ) -> Result<Self::Output, ParseResponseError<Self::Error>> {
65        Self::check_cc_success(completion_code)?;
66
67        if data.len() != 20 {
68            return Err(ParseResponseError::NotEnoughData);
69        }
70
71        let temporary_session_id =
72            NonZeroU32::try_from(u32::from_le_bytes(data[0..4].try_into().unwrap()))
73                .map_err(|_| AuthError::InvalidZeroSession)?;
74
75        let challenge_string = data[4..20].try_into().unwrap();
76
77        Ok(SessionChallenge {
78            temporary_session_id,
79            challenge_string,
80        })
81    }
82}
ipmi_rs/app/auth/get_session_challenge.rs

ipmi_rs/app/auth/
get_session_challenge.rs
