ace-uds 0.2.0

UDS typed message layer implementing ISO 14229-1.
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

// region: UdsError

use heapless::format;

#[derive(Debug)]
pub enum UdsError {
    Transport(ace_core::DiagError),
    NegativeResponse(u8),
    Parse(heapless::String<64>),
    ResponsePending,
    Validation(ValidationError),
}

// endregion: UdsError

// region: UdsError Display

impl core::fmt::Display for UdsError {
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        match self {
            UdsError::Transport(e) => write!(f, "transport error: {:?}", e),
            UdsError::NegativeResponse(nrc) => {
                write!(f, "negative response: 0x{:02X}", nrc)
            }
            UdsError::Parse(msg) => write!(f, "parse error: {}", msg),
            UdsError::ResponsePending => write!(f, "response pending (NRC 0x78)"),
            UdsError::Validation(e) => write!(f, "validation error: {}", e),
        }
    }
}

// endregion: UdsError Display

// region: UdsError From Impls

impl From<ace_core::DiagError> for UdsError {
    fn from(e: ace_core::DiagError) -> Self {
        UdsError::Transport(e)
    }
}

impl From<ValidationError> for UdsError {
    fn from(e: ValidationError) -> Self {
        UdsError::Validation(e)
    }
}

impl From<UdsError> for ace_core::DiagError {
    fn from(e: UdsError) -> Self {
        match e {
            UdsError::Transport(diag) => diag,
            UdsError::Parse(msg) => ace_core::DiagError::InvalidFrame(msg),
            UdsError::NegativeResponse(nrc) => ace_core::DiagError::InvalidFrame(
                format!("negative response: {nrc}").unwrap_or_default(),
            ),
            UdsError::ResponsePending => ace_core::DiagError::InvalidFrame(
                heapless::String::try_from("response pending").unwrap_or_default(),
            ),
            UdsError::Validation(e) => ace_core::DiagError::InvalidFrame(
                format!("validation error: {e}").unwrap_or_default(),
            ),
        }
    }
}

// endregion: UdsError From Impls

// region: ValidationError

#[derive(Debug, Clone, PartialEq, Eq)]
pub enum ValidationError {
    InvalidEventType(u8),
    UnsupportedService(u8),
    InvalidSubFunction(u8),
    InvalidLength { expected: usize, actual: usize },
    InvalidSessionType(u8),
    InvalidAddressAndLengthFormat(u8),
    InvalidDataIdentifier(u16),
    InvalidSecurityAccessType(u8),
    InvalidCommunicationTypeValue(u8),
    InvalidCommunicationReserved(u8),
    InvalidSubnet(u8),
    ServiceSpecific(heapless::String<64>),
    InvalidDtcGroup(u32),
}

// endregion: ValidationError

// region: ValidationError Display

impl core::fmt::Display for ValidationError {
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        match self {
            ValidationError::UnsupportedService(sid) => {
                write!(f, "invalid service identifier: {:?}", sid)
            }
            ValidationError::InvalidSubFunction(sf) => {
                write!(f, "invalid sub-function: 0x{:02X}", sf)
            }
            ValidationError::InvalidLength { expected, actual } => {
                write!(f, "invalid length: expected {}, got {}", expected, actual)
            }
            ValidationError::InvalidSessionType(st) => {
                write!(f, "invalid session type: 0x{:02X}", st)
            }
            ValidationError::InvalidAddressAndLengthFormat(byte) => {
                write!(
                    f,
                    "invalid addressAndLengthFormatIdentifier: 0x{:02X}",
                    byte
                )
            }
            ValidationError::InvalidDataIdentifier(did) => {
                write!(f, "invalid data identifier: 0x{:04X}", did)
            }
            ValidationError::ServiceSpecific(msg) => {
                write!(f, "service validation error: {}", msg)
            }
            ValidationError::InvalidSecurityAccessType(byte) => {
                write!(f, "invalid securityAccessType: 0x{:02X}", byte)
            }
            ValidationError::InvalidCommunicationReserved(byte) => {
                write!(f, "invalid communicationReserved: 0x{:02X}", byte)
            }
            ValidationError::InvalidSubnet(byte) => {
                write!(f, "invalid subnet: 0x{:02X}", byte)
            }
            ValidationError::InvalidCommunicationTypeValue(byte) => {
                write!(f, "invalid communicationTypeValue: 0x{:02X}", byte)
            }
            ValidationError::InvalidEventType(byte) => {
                write!(f, "invalid eventType: 0x{:02X}", byte)
            }
            ValidationError::InvalidDtcGroup(byte) => {
                write!(f, "invalid dtcGroup: 0x{:02X}", byte)
            }
        }
    }
}

// endregion: ValidationError Display