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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* -*- Mode: rust; rust-indent-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#![allow(non_camel_case_types)]
#![allow(non_upper_case_globals)]
#[macro_use]
extern crate lazy_static;
extern crate libc;
use libc::{c_void,c_int,c_char,c_ulonglong,dev_t};
use libc::{RTLD_GLOBAL,RTLD_LAZY,RTLD_NOLOAD};
use libc::{dlopen,dlclose,dlsym};
use std::ffi::CString;
use std::{marker,mem,ops,ptr};
#[repr(C)]
pub struct udev {
__private: c_void
}
#[repr(C)]
pub struct udev_list_entry {
__private: c_void
}
#[repr(C)]
pub struct udev_device {
__private: c_void
}
#[repr(C)]
pub struct udev_monitor {
__private: c_void
}
#[repr(C)]
pub struct udev_enumerate {
__private: c_void
}
macro_rules! ifnull {
($a:expr, $b:expr) => {
if $a.is_null() { $b } else { $a }
}
}
struct Library(*mut c_void);
impl Library {
fn open(name: &'static str) -> Library {
let flags = RTLD_LAZY | RTLD_GLOBAL;
let flags_noload = flags | RTLD_NOLOAD;
let name = CString::new(name).unwrap();
let name = name.as_ptr();
Library(unsafe {
ifnull!(dlopen(name, flags_noload), dlopen(name, flags))
})
}
fn get(&self, name: &'static str) -> *mut c_void {
let name = CString::new(name).unwrap();
unsafe { dlsym(self.0, name.as_ptr()) }
}
}
impl Drop for Library {
fn drop(&mut self) {
unsafe { dlclose(self.0); }
}
}
unsafe impl Sync for Library {}
unsafe impl Send for Library {}
lazy_static! {
static ref LIBRARY: Library = {
Library::open("libudev.so.1")
};
}
pub struct Symbol<T> {
ptr: *mut c_void,
pd: marker::PhantomData<T>
}
impl<T> Symbol<T> {
fn new(ptr: *mut c_void) -> Self {
let default = Self::default as *mut c_void;
Self { ptr: ifnull!(ptr, default), pd: marker::PhantomData }
}
// This is the default symbol, used whenever dlopen() fails.
// Users of this library are expected to check whether udev_new() returns
// a nullptr, and if so they MUST NOT call any other exported functions.
extern "C" fn default() -> *mut c_void {
ptr::null_mut()
}
}
impl<T> ops::Deref for Symbol<T> {
type Target = T;
fn deref(&self) -> &T {
unsafe { mem::transmute(&self.ptr) }
}
}
unsafe impl<T: Sync + Send> Sync for Symbol<T> {}
unsafe impl<T: Sync + Send> Send for Symbol<T> {}
macro_rules! define {
($name:ident, $type:ty) => {
lazy_static! {
pub static ref $name : Symbol<$type> = {
Symbol::new(LIBRARY.get(stringify!($name)))
};
}
};
}
// udev
define!(udev_new, extern "C" fn () -> *mut udev);
define!(udev_unref, extern "C" fn (*mut udev) -> *mut udev);
// udev_list
define!(udev_list_entry_get_next, extern "C" fn (*mut udev_list_entry) -> *mut udev_list_entry);
define!(udev_list_entry_get_name, extern "C" fn (*mut udev_list_entry) -> *const c_char);
define!(udev_list_entry_get_value, extern "C" fn (*mut udev_list_entry) -> *const c_char);
// udev_device
define!(udev_device_ref, extern "C" fn (*mut udev_device) -> *mut udev_device);
define!(udev_device_unref, extern "C" fn (*mut udev_device) -> *mut udev_device);
define!(udev_device_new_from_syspath, extern "C" fn (*mut udev, *const c_char) -> *mut udev_device);
define!(udev_device_get_parent, extern "C" fn (*mut udev_device) -> *mut udev_device);
define!(udev_device_get_devpath, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_subsystem, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_devtype, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_syspath, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_sysname, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_sysnum, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_devnode, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_is_initialized, extern "C" fn (*mut udev_device) -> c_int);
define!(udev_device_get_properties_list_entry, extern "C" fn (*mut udev_device) -> *mut udev_list_entry);
define!(udev_device_get_property_value, extern "C" fn (*mut udev_device, *const c_char) -> *const c_char);
define!(udev_device_get_driver, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_devnum, extern "C" fn (*mut udev_device) -> dev_t);
define!(udev_device_get_action, extern "C" fn (*mut udev_device) -> *const c_char);
define!(udev_device_get_sysattr_value, extern "C" fn (*mut udev_device, *const c_char) -> *const c_char);
define!(udev_device_set_sysattr_value, extern "C" fn (*mut udev_device, *const c_char, *mut c_char) -> c_int);
define!(udev_device_get_sysattr_list_entry, extern "C" fn (*mut udev_device) -> *mut udev_list_entry);
define!(udev_device_get_seqnum, extern "C" fn (*mut udev_device) -> c_ulonglong);
// udev_monitor
define!(udev_monitor_ref, extern "C" fn (*mut udev_monitor) -> *mut udev_monitor);
define!(udev_monitor_unref, extern "C" fn (*mut udev_monitor) -> *mut udev_monitor);
define!(udev_monitor_new_from_netlink, extern "C" fn (*mut udev, *const c_char) -> *mut udev_monitor);
define!(udev_monitor_enable_receiving, extern "C" fn (*mut udev_monitor) -> c_int);
define!(udev_monitor_get_fd, extern "C" fn (*mut udev_monitor) -> c_int);
define!(udev_monitor_receive_device, extern "C" fn (*mut udev_monitor) -> *mut udev_device);
define!(udev_monitor_filter_add_match_subsystem_devtype, extern "C" fn (*mut udev_monitor, *const c_char, *const c_char) -> c_int);
define!(udev_monitor_filter_add_match_tag, extern "C" fn (*mut udev_monitor, *const c_char) -> c_int);
define!(udev_monitor_filter_remove, extern "C" fn (*mut udev_monitor) -> c_int);
// udev_enumerate
define!(udev_enumerate_unref, extern "C" fn (*mut udev_enumerate) -> *mut udev_enumerate);
define!(udev_enumerate_new, extern "C" fn (*mut udev) -> *mut udev_enumerate);
define!(udev_enumerate_add_match_subsystem, extern "C" fn (*mut udev_enumerate, *const c_char) -> c_int);
define!(udev_enumerate_add_nomatch_subsystem, extern "C" fn (*mut udev_enumerate, *const c_char) -> c_int);
define!(udev_enumerate_add_match_sysattr, extern "C" fn (*mut udev_enumerate, *const c_char, *const c_char) -> c_int);
define!(udev_enumerate_add_nomatch_sysattr, extern "C" fn (*mut udev_enumerate, *const c_char, *const c_char) -> c_int);
define!(udev_enumerate_add_match_property, extern "C" fn (*mut udev_enumerate, *const c_char, *const c_char) -> c_int);
define!(udev_enumerate_add_match_tag, extern "C" fn (*mut udev_enumerate, *const c_char) -> c_int);
define!(udev_enumerate_add_match_parent, extern "C" fn (*mut udev_enumerate, *mut udev_device) -> c_int);
define!(udev_enumerate_add_match_is_initialized, extern "C" fn (*mut udev_enumerate) -> c_int);
define!(udev_enumerate_add_match_sysname, extern "C" fn (*mut udev_enumerate, *const c_char) -> c_int);
define!(udev_enumerate_add_syspath, extern "C" fn (*mut udev_enumerate, *const c_char) -> c_int);
define!(udev_enumerate_scan_devices, extern "C" fn (*mut udev_enumerate) -> c_int);
define!(udev_enumerate_get_list_entry, extern "C" fn (*mut udev_enumerate) -> *mut udev_list_entry);
|
