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
|
use core::{mem, slice};
use data::*;
use error::*;
use number::*;
pub trait Scheme {
fn handle(&self, packet: &mut Packet) {
let res = match packet.a {
SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
SYS_CHMOD => self.chmod(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
SYS_DUP => self.dup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
SYS_FCHMOD => self.fchmod(packet.b, packet.c as u16),
SYS_FCHOWN => self.fchown(packet.b, packet.c as u32, packet.d as u32),
SYS_FCNTL => self.fcntl(packet.b, packet.c, packet.d),
SYS_FEVENT => self.fevent(packet.b, packet.c),
SYS_FMAP => if packet.d >= mem::size_of::<Map>() {
self.fmap(packet.b, unsafe { &*(packet.c as *const Map) })
} else {
Err(Error::new(EFAULT))
},
SYS_FUNMAP => self.funmap(packet.b),
SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
} else {
Err(Error::new(EFAULT))
},
SYS_FSTATVFS => if packet.d >= mem::size_of::<StatVfs>() {
self.fstatvfs(packet.b, unsafe { &mut *(packet.c as *mut StatVfs) })
} else {
Err(Error::new(EFAULT))
},
SYS_FSYNC => self.fsync(packet.b),
SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
SYS_FUTIMENS => if packet.d >= mem::size_of::<TimeSpec>() {
self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::<TimeSpec>()) })
} else {
Err(Error::new(EFAULT))
},
SYS_CLOSE => self.close(packet.b),
_ => Err(Error::new(ENOSYS))
};
packet.a = Error::mux(res);
}
/* Scheme operations */
#[allow(unused_variables)]
fn open(&self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn chmod(&self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn rmdir(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn unlink(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
/* Resource operations */
#[allow(unused_variables)]
fn dup(&self, old_id: usize, buf: &[u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn read(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn write(&self, id: usize, buf: &[u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn seek(&self, id: usize, pos: usize, whence: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fchmod(&self, id: usize, mode: u16) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fchown(&self, id: usize, uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fevent(&self, id: usize, flags: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fmap(&self, id: usize, map: &Map) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn funmap(&self, address: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn frename(&self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fstat(&self, id: usize, stat: &mut Stat) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fsync(&self, id: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn ftruncate(&self, id: usize, len: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn futimens(&self, id: usize, times: &[TimeSpec]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn close(&self, id: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
}
|
