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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
use std::marker::PhantomData;
use std::os::raw::c_void;
use std::io;
use super::{cvt, get_optional, Constraint, ConstraintSource, Device, FileSystem, FileSystemType,
Timer};
use libparted_sys::{ped_constraint_exact, ped_file_system_open, ped_file_system_probe,
ped_file_system_probe_specific, ped_geometry_check, ped_geometry_destroy,
ped_geometry_duplicate, ped_geometry_init, ped_geometry_intersect,
ped_geometry_map, ped_geometry_new, ped_geometry_read, ped_geometry_set,
ped_geometry_set_end, ped_geometry_set_start, ped_geometry_sync,
ped_geometry_sync_fast, ped_geometry_test_equal, ped_geometry_test_inside,
ped_geometry_write, PedGeometry};
pub struct Geometry<'a> {
pub(crate) geometry: *mut PedGeometry,
pub(crate) phantom: PhantomData<&'a PedGeometry>,
pub(crate) is_droppable: bool,
}
impl<'a> Geometry<'a> {
pub fn from_raw(geometry: *mut PedGeometry) -> Geometry<'a> {
Geometry {
geometry,
phantom: PhantomData,
is_droppable: true,
}
}
pub fn exact(&self) -> Option<Constraint> {
get_optional(unsafe { ped_constraint_exact(self.geometry) }).map(|constraint| Constraint {
constraint,
source: ConstraintSource::New,
phantom: PhantomData,
})
}
pub fn check(
&self,
offset: i64,
granularity: i64,
count: i64,
timer: &Timer,
) -> Result<(), u64> {
let mut buffer: Vec<u8> = Vec::with_capacity(8192);
let buffer_ptr = buffer.as_mut_slice().as_mut_ptr();
let result = unsafe {
ped_geometry_check(
self.geometry,
buffer_ptr as *mut c_void,
buffer.len() as i64,
offset,
granularity,
count,
timer.timer,
)
};
match result {
0 => Ok(()),
bad_sector => Err(bad_sector as u64),
}
}
pub fn dev<'b>(&'b self) -> Device<'b> {
unsafe { Device::from_ped_device((*self.geometry).dev) }
}
pub fn dev_mut<'b>(&'b mut self) -> Device<'b> {
unsafe { Device::from_ped_device((*self.geometry).dev) }
}
pub fn duplicate<'b>(&self) -> io::Result<Geometry<'b>> {
cvt(unsafe { ped_geometry_duplicate(self.geometry) }).map(Geometry::from_raw)
}
pub fn end(&self) -> i64 {
unsafe { (*self.geometry).end }
}
pub fn init(&mut self, device: &Device, start: i64, length: i64) -> io::Result<()> {
cvt(unsafe { ped_geometry_init(self.geometry, device.ped_device(), start, length) })
.map(|_| ())
}
pub fn intersect(&self, other: &Geometry) -> Option<Geometry<'a>> {
get_optional(unsafe { ped_geometry_intersect(self.geometry, other.geometry) })
.map(Geometry::from_raw)
}
pub fn length(&self) -> i64 {
unsafe { (*self.geometry).length }
}
pub fn map(&self, src: &Geometry, sector: i64) -> Option<u64> {
let result = unsafe { ped_geometry_map(self.geometry, src.geometry, sector) };
if result == -1 {
None
} else {
Some(result as u64)
}
}
pub fn new(device: &Device, start: i64, length: i64) -> io::Result<Geometry<'a>> {
cvt(unsafe { ped_geometry_new(device.ped_device(), start, length) }).map(Geometry::from_raw)
}
pub fn read(&self, buffer: &mut Vec<u8>, offset: i64, count: i64) -> io::Result<()> {
let sector_size = unsafe { (*(*self.geometry).dev).sector_size as usize };
buffer.reserve(count as usize * sector_size + 1);
let buffer_ptr = buffer.as_mut_slice().as_mut_ptr() as *mut c_void;
cvt(unsafe { ped_geometry_read(self.geometry, buffer_ptr, offset, count) }).map(|_| ())
}
pub fn set(&mut self, start: i64, length: i64) -> io::Result<()> {
cvt(unsafe { ped_geometry_set(self.geometry, start, length) }).map(|_| ())
}
pub fn set_end(&mut self, end: i64) -> io::Result<()> {
cvt(unsafe { ped_geometry_set_end(self.geometry, end) }).map(|_| ())
}
pub fn set_start(&mut self, start: i64) -> io::Result<()> {
cvt(unsafe { ped_geometry_set_start(self.geometry, start) }).map(|_| ())
}
pub fn start(&self) -> i64 {
unsafe { (*self.geometry).start }
}
pub fn sync(&mut self) -> io::Result<()> {
cvt(unsafe { ped_geometry_sync(self.geometry) }).map(|_| ())
}
pub fn sync_fast(&mut self) -> io::Result<()> {
cvt(unsafe { ped_geometry_sync_fast(self.geometry) }).map(|_| ())
}
pub fn test_equal(&self, other: &Geometry) -> bool {
unsafe { ped_geometry_test_equal(self.geometry, other.geometry) == 1 }
}
pub fn test_inside(&self, other: &Geometry) -> bool {
unsafe { ped_geometry_test_inside(self.geometry, other.geometry) == 1 }
}
pub fn test_sector_inside(&self, sector: i64) -> bool {
debug_assert!(!self.geometry.is_null());
sector >= self.start() && sector <= self.end()
}
pub fn write_to_sectors(&mut self, buffer: &[u8], offset: i64, count: i64) -> io::Result<()> {
let sector_size = unsafe { (*(*self.geometry).dev).sector_size as usize };
let total_size = sector_size * count as usize;
if buffer.len() != total_size {
let mut new_buffer = Vec::with_capacity(total_size);
new_buffer.extend_from_slice(buffer);
new_buffer.extend((buffer.len()..total_size).map(|_| b'0'));
let buffer_ptr = new_buffer.as_slice().as_ptr() as *const c_void;
cvt(unsafe { ped_geometry_write(self.geometry, buffer_ptr, offset, count) }).map(|_| ())
} else {
let buffer_ptr = buffer.as_ptr() as *const c_void;
cvt(unsafe { ped_geometry_write(self.geometry, buffer_ptr, offset, count) }).map(|_| ())
}
}
pub fn open_fs<'b>(&'b self) -> Option<FileSystem<'b>> {
get_optional(unsafe { ped_file_system_open(self.geometry) }).map(FileSystem::from_raw)
}
pub fn probe_fs<'b>(&'b self) -> io::Result<FileSystemType<'b>> {
cvt(unsafe { ped_file_system_probe(self.geometry) }).map(FileSystemType::from_raw)
}
pub fn probe_specific_fs<'b>(&'b self, fs_type: &'b FileSystemType) -> Option<Geometry<'b>> {
get_optional(unsafe { ped_file_system_probe_specific(fs_type.fs, self.geometry) })
.map(Geometry::from_raw)
}
}
impl<'a> Drop for Geometry<'a> {
fn drop(&mut self) {
if self.is_droppable {
unsafe { ped_geometry_destroy(self.geometry) }
}
}
}