aboutsummaryrefslogtreecommitdiff
path: root/src/lib.rs
blob: 24661178a09af58fd9adc336ca3576d6b6f5ec54 (plain)
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
//! Provides access to a Nitrokey device using the native libnitrokey API.
//!
//! # Usage
//!
//! Operations on the Nitrokey require different authentication levels.  Some operations can be
//! performed without authentication, some require user access, and some require admin access.
//! This is modelled using the types [`User`][] and [`Admin`][].
//!
//! Use [`connect`][] to connect to any Nitrokey device.  The method will return a
//! [`DeviceWrapper`][] that abstracts over the supported Nitrokey devices.  You can also use
//! [`Pro::connect`][] or [`Storage::connect`][] to connect to a specific device.
//!
//! You can then use [`authenticate_user`][] or [`authenticate_admin`][] to get an authenticated
//! device that can perform operations that require authentication.  You can use [`device`][] to go
//! back to the unauthenticated device.
//!
//! This makes sure that you can only execute a command if you have the required access rights.
//! Otherwise, your code will not compile.  The only exception are the methods to generate one-time
//! passwords – [`get_hotp_code`][] and [`get_totp_code`][].  Depending on the stick configuration,
//! these operations are available without authentication or with user authentication.
//!
//! # Examples
//!
//! Connect to any Nitrokey and print its serial number:
//!
//! ```no_run
//! use nitrokey::Device;
//! # use nitrokey::CommandError;
//!
//! # fn try_main() -> Result<(), CommandError> {
//! let device = nitrokey::connect()?;
//! println!("{}", device.get_serial_number()?);
//! #     Ok(())
//! # }
//! ```
//!
//! Configure an HOTP slot:
//!
//! ```no_run
//! use nitrokey::{Authenticate, ConfigureOtp, OtpMode, OtpSlotData};
//! # use nitrokey::CommandError;
//!
//! # fn try_main() -> Result<(), (CommandError)> {
//! let device = nitrokey::connect()?;
//! let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::SixDigits);
//! match device.authenticate_admin("12345678") {
//!     Ok(admin) => {
//!         match admin.write_hotp_slot(slot_data, 0) {
//!             Ok(()) => println!("Successfully wrote slot."),
//!             Err(err) => println!("Could not write slot: {}", err),
//!         }
//!     },
//!     Err((_, err)) => println!("Could not authenticate as admin: {}", err),
//! }
//! #     Ok(())
//! # }
//! ```
//!
//! Generate an HOTP one-time password:
//!
//! ```no_run
//! use nitrokey::{Device, GenerateOtp};
//! # use nitrokey::CommandError;
//!
//! # fn try_main() -> Result<(), (CommandError)> {
//! let device = nitrokey::connect()?;
//! match device.get_hotp_code(1) {
//!     Ok(code) => println!("Generated HOTP code: {}", code),
//!     Err(err) => println!("Could not generate HOTP code: {}", err),
//! }
//! #     Ok(())
//! # }
//! ```
//!
//! [`authenticate_admin`]: trait.Authenticate.html#method.authenticate_admin
//! [`authenticate_user`]: trait.Authenticate.html#method.authenticate_user
//! [`connect`]: fn.connect.html
//! [`Pro::connect`]: struct.Pro.html#fn.connect.html
//! [`Storage::connect`]: struct.Storage.html#fn.connect.html
//! [`device`]: struct.User.html#method.device
//! [`get_hotp_code`]: trait.GenerateOtp.html#method.get_hotp_code
//! [`get_totp_code`]: trait.GenerateOtp.html#method.get_totp_code
//! [`Admin`]: struct.Admin.html
//! [`DeviceWrapper`]: enum.DeviceWrapper.html
//! [`User`]: struct.User.html

#![warn(
    missing_docs,
    rust_2018_compatibility,
    rust_2018_idioms,
    unused,
)]

extern crate libc;
extern crate nitrokey_sys;
extern crate rand;

mod auth;
mod config;
mod device;
mod otp;
mod pws;
#[cfg(test)]
mod tests;
mod util;

pub use auth::{Admin, Authenticate, User};
pub use config::Config;
pub use device::{connect, Device, DeviceWrapper, Pro, Storage, StorageStatus, VolumeStatus};
pub use otp::{ConfigureOtp, GenerateOtp, OtpMode, OtpSlotData};
pub use pws::{GetPasswordSafe, PasswordSafe, SLOT_COUNT};
pub use util::{CommandError, LogLevel};

/// Enables or disables debug output.  Calling this method with `true` is equivalent to setting the
/// log level to `Debug`; calling it with `false` is equivalent to the log level `Error` (see
/// [`set_log_level`][]).
///
/// If debug output is enabled, detailed information about the communication with the Nitrokey
/// device is printed to the standard output.
///
/// [`set_log_level`]: fn.set_log_level.html
pub fn set_debug(state: bool) {
    unsafe {
        nitrokey_sys::NK_set_debug(state);
    }
}

/// Sets the log level for libnitrokey.  All log messages are written to the standard error stream.
/// Setting the log level enables all log messages on the same or on a higher log level.
pub fn set_log_level(level: LogLevel) {
    unsafe {
        nitrokey_sys::NK_set_debug_level(level.into());
    }
}