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
|
// Copyright 2019 Robin Krahl <robin.krahl@ireas.org>
// SPDX-License-Identifier: GPL-3.0-or-later
use usb_device::bus::{UsbBus, UsbBusAllocator};
use usb_device::device::{UsbDevice, UsbDeviceBuilder, UsbVidPid};
use crate::hid::{HidDevice, Protocol, ReportType, Subclass};
use crate::util::TryFrom;
const VID_CLAY_LOGIC: u16 = 0x20a0;
const PID_NITROKEY_PRO: u16 = 0x4108;
const REPORT_LEN: usize = 64;
const REPORT_DESCRIPTOR: &[u8] = &[
0x05, 0x01, 0x09, 0x06, 0xA1, 0x01, 0x05, 0x07, 0x19, 0xE0, 0x29, 0xE7, 0x15, 0x00, 0x25, 0x01,
0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08, 0x81, 0x03, 0x95, 0x05, 0x75, 0x01,
0x05, 0x08, 0x19, 0x01, 0x29, 0x05, 0x91, 0x02, 0x95, 0x01, 0x75, 0x03, 0x91, 0x03, 0x95, 0x06,
0x75, 0x08, 0x15, 0x00, 0x25, 0x65, 0x05, 0x07, 0x19, 0x00, 0x29, 0x65, 0x81, 0x00, 0x09, 0x03,
0x75, 0x08, 0x95, 0x40, 0xB1, 0x02, 0xC0,
];
enum_u8! {
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum DeviceStatus {
Ok = 0,
Busy = 1,
Error = 2,
ReceivedReport = 3,
}
}
enum_u8! {
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum CommandStatus {
Ok = 0,
WrongCrc = 1,
WrongSlot = 2,
SlotNotProgrammed = 3,
WrongPassword = 4,
NotAuthorized = 5,
TimestampWarning = 6,
NoNameError = 7,
NotSupported = 8,
UnknownCommand = 9,
AesDecryptionFailed = 10,
}
}
enum_u8! {
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum CommandId {
GetStatus = 0,
}
}
pub struct Nitrokey {
buf: [u8; REPORT_LEN],
}
impl Nitrokey {
pub fn new() -> Self {
Nitrokey {
buf: [0; REPORT_LEN],
}
}
fn execute_command(
&self,
command_id: CommandId,
data: &[u8],
) -> Result<[u8; 53], CommandStatus> {
let _ = (command_id, data);
Err(CommandStatus::UnknownCommand)
}
}
impl HidDevice for Nitrokey {
fn subclass(&self) -> Subclass {
Subclass::BootInterface
}
fn protocol(&self) -> Protocol {
Protocol::Keyboard
}
fn report_descriptor(&self) -> &[u8] {
REPORT_DESCRIPTOR
}
fn get_report(&mut self, report_type: ReportType, report_id: u8) -> Result<&[u8], ()> {
if report_type != ReportType::Feature || report_id != 0 {
return Err(());
}
let device_status = DeviceStatus::Ok;
let command_id = self.buf[0];
let result = if let Ok(command_id) = CommandId::try_from(command_id) {
self.execute_command(command_id, &self.buf[1..60])
} else {
Err(CommandStatus::UnknownCommand)
};
let (command_status, command_data) = result
.map(|d| (CommandStatus::Ok, d))
.unwrap_or_else(|status| (status, [0; 53]));
let pre_data: [u8; 7] = [
device_status.into(), // device status
command_id, // command_id
self.buf[60],
self.buf[61],
self.buf[62],
self.buf[63], // last_command_crc
command_status.into(), // last_command_status
];
let post_data: [u8; 4] = [
0x00, 0x00, 0x00, 0x01, // crc -- libnitrokey accepts any non-zero value
];
self.buf[0..7].copy_from_slice(&pre_data);
self.buf[7..7 + command_data.len()].copy_from_slice(&command_data);
self.buf[60..64].copy_from_slice(&post_data);
Ok(&self.buf)
}
fn set_report(
&mut self,
report_type: ReportType,
report_id: u8,
data: &[u8],
) -> Result<(), ()> {
if report_type != ReportType::Feature || report_id != 0 || data.len() != REPORT_LEN {
Err(())
} else {
self.buf.copy_from_slice(data);
Ok(())
}
}
}
pub fn create_usb_device<B: UsbBus>(alloc: &UsbBusAllocator<B>) -> UsbDevice<'_, B> {
UsbDeviceBuilder::new(alloc, UsbVidPid(VID_CLAY_LOGIC, PID_NITROKEY_PRO))
.manufacturer("Nitrokey/ntw")
.product("Nitrokey Pro/ntw")
.serial_number("?")
.build()
}
|
