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
|
use r_efi::efi::Status;
use r_efi::efi::protocols::{device_path, loaded_image_device_path};
use super::{RawOsError, helpers, unsupported_err};
use crate::ffi::{OsStr, OsString};
use crate::marker::PhantomData;
use crate::os::uefi;
use crate::path::{self, PathBuf};
use crate::ptr::NonNull;
use crate::{fmt, io};
pub fn errno() -> RawOsError {
0
}
pub fn error_string(errno: RawOsError) -> String {
// Keep the List in Alphabetical Order
// The Messages are taken from UEFI Specification Appendix D - Status Codes
#[rustfmt::skip]
let msg = match r_efi::efi::Status::from_usize(errno) {
Status::ABORTED => "The operation was aborted.",
Status::ACCESS_DENIED => "Access was denied.",
Status::ALREADY_STARTED => "The protocol has already been started.",
Status::BAD_BUFFER_SIZE => "The buffer was not the proper size for the request.",
Status::BUFFER_TOO_SMALL => "The buffer is not large enough to hold the requested data. The required buffer size is returned in the appropriate parameter when this error occurs.",
Status::COMPROMISED_DATA => "The security status of the data is unknown or compromised and the data must be updated or replaced to restore a valid security status.",
Status::CONNECTION_FIN => "The receiving operation fails because the communication peer has closed the connection and there is no more data in the receive buffer of the instance.",
Status::CONNECTION_REFUSED => "The receiving or transmission operation fails because this connection is refused.",
Status::CONNECTION_RESET => "The connect fails because the connection is reset either by instance itself or the communication peer.",
Status::CRC_ERROR => "A CRC error was detected.",
Status::DEVICE_ERROR => "The physical device reported an error while attempting the operation.",
Status::END_OF_FILE => "The end of the file was reached.",
Status::END_OF_MEDIA => "Beginning or end of media was reached",
Status::HOST_UNREACHABLE => "The remote host is not reachable.",
Status::HTTP_ERROR => "A HTTP error occurred during the network operation.",
Status::ICMP_ERROR => "An ICMP error occurred during the network operation.",
Status::INCOMPATIBLE_VERSION => "The function encountered an internal version that was incompatible with a version requested by the caller.",
Status::INVALID_LANGUAGE => "The language specified was invalid.",
Status::INVALID_PARAMETER => "A parameter was incorrect.",
Status::IP_ADDRESS_CONFLICT => "There is an address conflict address allocation",
Status::LOAD_ERROR => "The image failed to load.",
Status::MEDIA_CHANGED => "The medium in the device has changed since the last access.",
Status::NETWORK_UNREACHABLE => "The network containing the remote host is not reachable.",
Status::NO_MAPPING => "A mapping to a device does not exist.",
Status::NO_MEDIA => "The device does not contain any medium to perform the operation.",
Status::NO_RESPONSE => "The server was not found or did not respond to the request.",
Status::NOT_FOUND => "The item was not found.",
Status::NOT_READY => "There is no data pending upon return.",
Status::NOT_STARTED => "The protocol has not been started.",
Status::OUT_OF_RESOURCES => "A resource has run out.",
Status::PROTOCOL_ERROR => "A protocol error occurred during the network operation.",
Status::PROTOCOL_UNREACHABLE => "An ICMP protocol unreachable error is received.",
Status::SECURITY_VIOLATION => "The function was not performed due to a security violation.",
Status::TFTP_ERROR => "A TFTP error occurred during the network operation.",
Status::TIMEOUT => "The timeout time expired.",
Status::UNSUPPORTED => "The operation is not supported.",
Status::VOLUME_FULL => "There is no more space on the file system.",
Status::VOLUME_CORRUPTED => "An inconstancy was detected on the file system causing the operating to fail.",
Status::WRITE_PROTECTED => "The device cannot be written to.",
_ => return format!("Status: {errno}"),
};
msg.to_owned()
}
pub fn getcwd() -> io::Result<PathBuf> {
match helpers::open_shell() {
Some(shell) => {
// SAFETY: path_ptr is managed by UEFI shell and should not be deallocated
let path_ptr = unsafe { ((*shell.as_ptr()).get_cur_dir)(crate::ptr::null_mut()) };
helpers::os_string_from_raw(path_ptr)
.map(PathBuf::from)
.ok_or(io::const_error!(io::ErrorKind::InvalidData, "invalid path"))
}
None => {
let mut t = current_exe()?;
// SAFETY: This should never fail since the disk prefix will be present even for root
// executables
assert!(t.pop());
Ok(t)
}
}
}
pub fn chdir(p: &path::Path) -> io::Result<()> {
let shell = helpers::open_shell().ok_or(unsupported_err())?;
let mut p = helpers::os_string_to_raw(p.as_os_str())
.ok_or(io::const_error!(io::ErrorKind::InvalidData, "invalid path"))?;
let r = unsafe { ((*shell.as_ptr()).set_cur_dir)(crate::ptr::null_mut(), p.as_mut_ptr()) };
if r.is_error() { Err(io::Error::from_raw_os_error(r.as_usize())) } else { Ok(()) }
}
pub struct SplitPaths<'a>(!, PhantomData<&'a ()>);
pub fn split_paths(_unparsed: &OsStr) -> SplitPaths<'_> {
panic!("unsupported")
}
impl<'a> Iterator for SplitPaths<'a> {
type Item = PathBuf;
fn next(&mut self) -> Option<PathBuf> {
self.0
}
}
#[derive(Debug)]
pub struct JoinPathsError;
pub fn join_paths<I, T>(_paths: I) -> Result<OsString, JoinPathsError>
where
I: Iterator<Item = T>,
T: AsRef<OsStr>,
{
Err(JoinPathsError)
}
impl fmt::Display for JoinPathsError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
"not supported on this platform yet".fmt(f)
}
}
impl crate::error::Error for JoinPathsError {}
pub fn current_exe() -> io::Result<PathBuf> {
let protocol = helpers::image_handle_protocol::<device_path::Protocol>(
loaded_image_device_path::PROTOCOL_GUID,
)?;
helpers::device_path_to_text(protocol).map(PathBuf::from)
}
pub fn temp_dir() -> PathBuf {
panic!("no filesystem on this platform")
}
pub fn home_dir() -> Option<PathBuf> {
None
}
pub fn exit(code: i32) -> ! {
if let (Some(boot_services), Some(handle)) =
(uefi::env::boot_services(), uefi::env::try_image_handle())
{
let boot_services: NonNull<r_efi::efi::BootServices> = boot_services.cast();
let _ = unsafe {
((*boot_services.as_ptr()).exit)(
handle.as_ptr(),
Status::from_usize(code as usize),
0,
crate::ptr::null_mut(),
)
};
}
crate::intrinsics::abort()
}
pub fn getpid() -> u32 {
panic!("no pids on this platform")
}
|
