iso14229-1 0.1.0

A ISO 14229-1 protocol.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142

//! Commons of Service 84

use crate::{error::Error, utils};
use bitfield_struct::bitfield;
use std::ops::{BitAnd, BitXorAssign};

/// Table 490 — Definition of Administrative Parameter
///
/// ### Repr: `u16`
/// | Field                                  | Size (bits) |
/// |----------------------------------------|-------------|
/// | ISO reserved                           | 5           |
/// | ISO reserved                           | 4           |
/// | Signature on the response is requested | 1           |
/// | Message is signed                      | 1           |
/// | Message is encrypted                   | 1           |
/// | A pre-established key is used          | 1           |
/// | ISO Reserved                           | 2           |
/// | Message is request message             | 1           |
#[bitfield(u16, order = Msb)]
pub struct AdministrativeParameter {
    #[bits(5)]
    __: u8,
    #[bits(4)]
    __: u8,
    pub signature_on_response: bool,
    pub signed: bool,
    pub encrypted: bool,
    pub pre_established: bool,
    #[bits(2)]
    __: u8,
    pub request: bool,
}

impl From<AdministrativeParameter> for Vec<u8> {
    #[inline]
    fn from(val: AdministrativeParameter) -> Self {
        val.0.to_be_bytes().to_vec()
    }
}

impl AdministrativeParameter {
    #[inline]
    pub const fn is_request(&self) -> bool {
        self.request()
    }

    #[inline]
    pub fn request_set(&mut self, value: bool) -> &mut Self {
        self.set_request(value);
        self
    }

    #[inline]
    pub const fn is_pre_established(&self) -> bool {
        self.pre_established()
    }

    #[inline]
    pub fn pre_established_set(&mut self, value: bool) -> &mut Self {
        self.set_pre_established(value);
        self
    }

    #[inline]
    pub const fn is_encrypted(&self) -> bool {
        self.encrypted()
    }

    #[inline]
    pub fn encrypted_set(&mut self, value: bool) -> &mut Self {
        self.set_encrypted(value);
        self
    }

    #[inline]
    pub const fn is_signed(&self) -> bool {
        self.signed()
    }

    #[inline]
    pub fn signed_set(&mut self, value: bool) -> &mut Self {
        self.set_signed(value);
        self
    }

    #[inline]
    pub const fn is_signature_on_response(&self) -> bool {
        self.signature_on_response()
    }

    #[inline]
    pub fn signature_on_response_set(&mut self, value: bool) -> &mut Self {
        self.set_signature_on_response(value);
        self
    }
}

/// Table 491 — Definition of Signature/Encryption calculation parameter
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum SignatureEncryptionCalculation {
    VehicleManufacturerSpecific(u8), // 00 to 7F
    SystemSupplier(u8),              // 80 to 8F
}

impl TryFrom<u8> for SignatureEncryptionCalculation {
    type Error = Error;
    #[inline]
    fn try_from(value: u8) -> Result<Self, Self::Error> {
        match value {
            0x00..=0x7F => Ok(Self::VehicleManufacturerSpecific(value)),
            0x80..=0x8F => Ok(Self::SystemSupplier(value)),
            v => Err(Error::ReservedError(v)),
        }
    }
}

impl From<SignatureEncryptionCalculation> for u8 {
    #[inline]
    fn from(val: SignatureEncryptionCalculation) -> Self {
        match val {
            SignatureEncryptionCalculation::VehicleManufacturerSpecific(v)
            | SignatureEncryptionCalculation::SystemSupplier(v) => v,
        }
    }
}

#[cfg(test)]
mod test_apar {
    use super::AdministrativeParameter;

    #[test]
    fn apar() -> anyhow::Result<()> {
        let mut value: AdministrativeParameter = Default::default();
        assert!(!value.is_request());

        value.request_set(true);
        assert!(value.is_request());

        Ok(())
    }
}