ctaphid-app 0.2.0

trait for CTAPHID applications
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
143
144
145
146
147
148
149
150
151
152
153
154
155

#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Command {
    // mandatory for CTAP1
    Ping,
    Msg,
    Init,
    Error,

    // optional
    Wink,
    Lock,

    // mandatory for CTAP2
    Cbor,
    Cancel,
    KeepAlive,

    // ISO7816 only commands
    Deselect,

    // vendor-assigned range from 0x40 to 0x7f
    Vendor(VendorCommand),
}

impl Command {
    pub fn into_u8(self) -> u8 {
        self.into()
    }
}

impl TryFrom<u8> for Command {
    type Error = ();

    fn try_from(from: u8) -> core::result::Result<Command, ()> {
        match from {
            0x01 => Ok(Command::Ping),
            0x03 => Ok(Command::Msg),
            0x06 => Ok(Command::Init),
            0x3f => Ok(Command::Error),
            0x08 => Ok(Command::Wink),
            0x04 => Ok(Command::Lock),
            0x10 => Ok(Command::Cbor),
            0x11 => Ok(Command::Cancel),
            0x12 => Ok(Command::Deselect),
            0x3b => Ok(Command::KeepAlive),
            code => Ok(Command::Vendor(VendorCommand::try_from(code)?)),
        }
    }
}

/// Vendor CTAPHID commands, from 0x40 to 0x7f.
#[repr(u8)]
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum VendorCommand {
    H40 = 0x40,
    H41 = 0x41,
    H42 = 0x42,
    H43 = 0x43,
    H44 = 0x44,
    H45 = 0x45,
    H46 = 0x46,
    H47 = 0x47,
    H48 = 0x48,
    H49 = 0x49,
    H4A = 0x4A,
    H4B = 0x4B,
    H4C = 0x4C,
    H4D = 0x4D,
    H4E = 0x4E,
    H4F = 0x4F,
    H50 = 0x50,
    H51 = 0x51,
    H52 = 0x52,
    H53 = 0x53,
    H54 = 0x54,
    H55 = 0x55,
    H56 = 0x56,
    H57 = 0x57,
    H58 = 0x58,
    H59 = 0x59,
    H5A = 0x5A,
    H5B = 0x5B,
    H5C = 0x5C,
    H5D = 0x5D,
    H5E = 0x5E,
    H5F = 0x5F,
    H60 = 0x60,
    H61 = 0x61,
    H62 = 0x62,
    H63 = 0x63,
    H64 = 0x64,
    H65 = 0x65,
    H66 = 0x66,
    H67 = 0x67,
    H68 = 0x68,
    H69 = 0x69,
    H6A = 0x6A,
    H6B = 0x6B,
    H6C = 0x6C,
    H6D = 0x6D,
    H6E = 0x6E,
    H6F = 0x6F,
    H70 = 0x70,
    H71 = 0x71,
    H72 = 0x72,
    H73 = 0x73,
    H74 = 0x74,
    H75 = 0x75,
    H76 = 0x76,
    H77 = 0x77,
    H78 = 0x78,
    H79 = 0x79,
    H7A = 0x7A,
    H7B = 0x7B,
    H7C = 0x7C,
    H7D = 0x7D,
    H7E = 0x7E,
    H7F = 0x7F,
}

impl VendorCommand {
    pub const FIRST: u8 = 0x40;
    pub const LAST: u8 = 0x7f;
}

impl TryFrom<u8> for VendorCommand {
    type Error = ();

    fn try_from(from: u8) -> core::result::Result<Self, ()> {
        if (Self::FIRST..=Self::LAST).contains(&from) {
            Ok(unsafe { core::mem::transmute::<u8, VendorCommand>(from) })
        } else {
            Err(())
        }
    }
}

impl From<Command> for u8 {
    fn from(command: Command) -> u8 {
        use Command::*;
        match command {
            Ping => 0x01,
            Msg => 0x03,
            Init => 0x06,
            Error => 0x3f,
            Wink => 0x08,
            Lock => 0x04,
            Cbor => 0x10,
            Cancel => 0x11,
            Deselect => 0x12,
            KeepAlive => 0x3b,
            Vendor(command) => command as u8,
        }
    }
}