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Remove the shim kernel crate

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Zhang Junyang
2024-08-19 19:15:22 +08:00
committed by Tate, Hongliang Tian
parent d76c7a5b1e
commit dafd16075f
416 changed files with 231 additions and 273 deletions
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336
kernel/src/error.rs Normal file
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// SPDX-License-Identifier: MPL-2.0
#![allow(dead_code)]
/// Error number.
#[repr(i32)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub enum Errno {
EPERM = 1, /* Operation not permitted */
ENOENT = 2, /* No such file or directory */
ESRCH = 3, /* No such process */
EINTR = 4, /* Interrupted system call */
EIO = 5, /* I/O error */
ENXIO = 6, /* No such device or address */
E2BIG = 7, /* Argument list too long */
ENOEXEC = 8, /* Exec format error */
EBADF = 9, /* Bad file number */
ECHILD = 10, /* No child processes */
EAGAIN = 11, /* Try again */
ENOMEM = 12, /* Out of memory */
EACCES = 13, /* Permission denied */
EFAULT = 14, /* Bad address */
ENOTBLK = 15, /* Block device required */
EBUSY = 16, /* Device or resource busy */
EEXIST = 17, /* File exists */
EXDEV = 18, /* Cross-device link */
ENODEV = 19, /* No such device */
ENOTDIR = 20, /* Not a directory */
EISDIR = 21, /* Is a directory */
EINVAL = 22, /* Invalid argument */
ENFILE = 23, /* File table overflow */
EMFILE = 24, /* Too many open files */
ENOTTY = 25, /* Not a typewriter */
ETXTBSY = 26, /* Text file busy */
EFBIG = 27, /* File too large */
ENOSPC = 28, /* No space left on device */
ESPIPE = 29, /* Illegal seek */
EROFS = 30, /* Read-only file system */
EMLINK = 31, /* Too many links */
EPIPE = 32, /* Broken pipe */
EDOM = 33, /* Math argument out of domain of func */
ERANGE = 34, /* Math result not representable */
EDEADLK = 35, /* Resource deadlock would occur */
ENAMETOOLONG = 36, /* File name too long */
ENOLCK = 37, /* No record locks available */
/*
* This error code is special: arch syscall entry code will return
* -ENOSYS if users try to call a syscall that doesn't exist. To keep
* failures of syscalls that really do exist distinguishable from
* failures due to attempts to use a nonexistent syscall, syscall
* implementations should refrain from returning -ENOSYS.
*/
ENOSYS = 38, /* Invalid system call number */
ENOTEMPTY = 39, /* Directory not empty */
ELOOP = 40, /* Too many symbolic links encountered */
// EWOULDBLOCK EAGAIN /* Operation would block */
ENOMSG = 42, /* No message of desired type */
EIDRM = 43, /* Identifier removed */
ECHRNG = 44, /* Channel number out of range */
EL2NSYNC = 45, /* Level 2 not synchronized */
EL3HLT = 46, /* Level 3 halted */
EL3RST = 47, /* Level 3 reset */
ELNRNG = 48, /* Link number out of range */
EUNATCH = 49, /* Protocol driver not attached */
ENOCSI = 50, /* No CSI structure available */
EL2HLT = 51, /* Level 2 halted */
EBADE = 52, /* Invalid exchange */
EBADR = 53, /* Invalid request descriptor */
EXFULL = 54, /* Exchange full */
ENOANO = 55, /* No anode */
EBADRQC = 56, /* Invalid request code */
EBADSLT = 57, /* Invalid slot */
// EDEADLOCK EDEADLK
EBFONT = 59, /* Bad font file format */
ENOSTR = 60, /* Device not a stream */
ENODATA = 61, /* No data available */
ETIME = 62, /* Timer expired */
ENOSR = 63, /* Out of streams resources */
ENONET = 64, /* Machine is not on the network */
ENOPKG = 65, /* Package not installed */
EREMOTE = 66, /* Object is remote */
ENOLINK = 67, /* Link has been severed */
EADV = 68, /* Advertise error */
ESRMNT = 69, /* Srmount error */
ECOMM = 70, /* Communication error on send */
EPROTO = 71, /* Protocol error */
EMULTIHOP = 72, /* Multihop attempted */
EDOTDOT = 73, /* RFS specific error */
EBADMSG = 74, /* Not a data message */
EOVERFLOW = 75, /* Value too large for defined data type */
ENOTUNIQ = 76, /* Name not unique on network */
EBADFD = 77, /* File descriptor in bad state */
EREMCHG = 78, /* Remote address changed */
ELIBACC = 79, /* Can not access a needed shared library */
ELIBBAD = 80, /* Accessing a corrupted shared library */
ELIBSCN = 81, /* .lib section in a.out corrupted */
ELIBMAX = 82, /* Attempting to link in too many shared libraries */
ELIBEXEC = 83, /* Cannot exec a shared library directly */
EILSEQ = 84, /* Illegal byte sequence */
ERESTART = 85, /* Interrupted system call should be restarted */
ESTRPIPE = 86, /* Streams pipe error */
EUSERS = 87, /* Too many users */
ENOTSOCK = 88, /* Socket operation on non-socket */
EDESTADDRREQ = 89, /* Destination address required */
EMSGSIZE = 90, /* Message too long */
EPROTOTYPE = 91, /* Protocol wrong type for socket */
ENOPROTOOPT = 92, /* Protocol not available */
EPROTONOSUPPORT = 93, /* Protocol not supported */
ESOCKTNOSUPPORT = 94, /* Socket type not supported */
EOPNOTSUPP = 95, /* Operation not supported on transport endpoint */
EPFNOSUPPORT = 96, /* Protocol family not supported */
EAFNOSUPPORT = 97, /* Address family not supported by protocol */
EADDRINUSE = 98, /* Address already in use */
EADDRNOTAVAIL = 99, /* Cannot assign requested address */
ENETDOWN = 100, /* Network is down */
ENETUNREACH = 101, /* Network is unreachable */
ENETRESET = 102, /* Network dropped connection because of reset */
ECONNABORTED = 103, /* Software caused connection abort */
ECONNRESET = 104, /* Connection reset by peer */
ENOBUFS = 105, /* No buffer space available */
EISCONN = 106, /* Transport endpoint is already connected */
ENOTCONN = 107, /* Transport endpoint is not connected */
ESHUTDOWN = 108, /* Cannot send after transport endpoint shutdown */
ETOOMANYREFS = 109, /* Too many references: cannot splice */
ETIMEDOUT = 110, /* Connection timed out */
ECONNREFUSED = 111, /* Connection refused */
EHOSTDOWN = 112, /* Host is down */
EHOSTUNREACH = 113, /* No route to host */
EALREADY = 114, /* Operation already in progress */
EINPROGRESS = 115, /* Operation now in progress */
ESTALE = 116, /* Stale file handle */
EUCLEAN = 117, /* Structure needs cleaning */
ENOTNAM = 118, /* Not a XENIX named type file */
ENAVAIL = 119, /* No XENIX semaphores available */
EISNAM = 120, /* Is a named type file */
EREMOTEIO = 121, /* Remote I/O error */
EDQUOT = 122, /* Quota exceeded */
ENOMEDIUM = 123, /* No medium found */
EMEDIUMTYPE = 124, /* Wrong medium type */
ECANCELED = 125, /* Operation Canceled */
ENOKEY = 126, /* Required key not available */
EKEYEXPIRED = 127, /* Key has expired */
EKEYREVOKED = 128, /* Key has been revoked */
EKEYREJECTED = 129, /* Key was rejected by service */
/* for robust mutexes */
EOWNERDEAD = 130, /* Owner died */
ENOTRECOVERABLE = 131, /* State not recoverable */
ERFKILL = 132, /* Operation not possible due to RF-kill */
EHWPOISON = 133, /* Memory page has hardware error */
}
/// error used in this crate
#[derive(Debug, Clone, Copy)]
pub struct Error {
errno: Errno,
msg: Option<&'static str>,
}
impl Error {
pub const fn new(errno: Errno) -> Self {
Error { errno, msg: None }
}
pub const fn with_message(errno: Errno, msg: &'static str) -> Self {
Error {
errno,
msg: Some(msg),
}
}
pub const fn error(&self) -> Errno {
self.errno
}
}
impl From<Errno> for Error {
fn from(errno: Errno) -> Self {
Error::new(errno)
}
}
impl AsRef<Error> for Error {
fn as_ref(&self) -> &Error {
self
}
}
impl From<ostd::Error> for Error {
fn from(ostd_error: ostd::Error) -> Self {
match ostd_error {
ostd::Error::AccessDenied => Error::new(Errno::EFAULT),
ostd::Error::NoMemory => Error::new(Errno::ENOMEM),
ostd::Error::InvalidArgs => Error::new(Errno::EINVAL),
ostd::Error::IoError => Error::new(Errno::EIO),
ostd::Error::NotEnoughResources => Error::new(Errno::EBUSY),
ostd::Error::PageFault => Error::new(Errno::EFAULT),
ostd::Error::Overflow => Error::new(Errno::EOVERFLOW),
ostd::Error::MapAlreadyMappedVaddr => Error::new(Errno::EINVAL),
}
}
}
impl From<(ostd::Error, usize)> for Error {
// Used in fallible memory read/write API
fn from(ostd_error: (ostd::Error, usize)) -> Self {
Error::from(ostd_error.0)
}
}
impl From<aster_block::bio::BioEnqueueError> for Error {
fn from(error: aster_block::bio::BioEnqueueError) -> Self {
match error {
aster_block::bio::BioEnqueueError::IsFull => {
Error::with_message(Errno::EBUSY, "The request queue is full")
}
aster_block::bio::BioEnqueueError::Refused => {
Error::with_message(Errno::EBUSY, "Refuse to enqueue the bio")
}
aster_block::bio::BioEnqueueError::TooBig => {
Error::with_message(Errno::EINVAL, "Bio is too big")
}
}
}
}
impl From<aster_block::bio::BioStatus> for Error {
fn from(err_status: aster_block::bio::BioStatus) -> Self {
match err_status {
aster_block::bio::BioStatus::NotSupported => {
Error::with_message(Errno::EIO, "I/O operation is not supported")
}
aster_block::bio::BioStatus::NoSpace => {
Error::with_message(Errno::ENOSPC, "Insufficient space on device")
}
aster_block::bio::BioStatus::IoError => {
Error::with_message(Errno::EIO, "I/O operation fails")
}
status => panic!("Can not convert the status: {:?} to an error", status),
}
}
}
impl From<core::str::Utf8Error> for Error {
fn from(_: core::str::Utf8Error) -> Self {
Error::with_message(Errno::EINVAL, "Invalid utf-8 string")
}
}
impl From<alloc::string::FromUtf8Error> for Error {
fn from(_: alloc::string::FromUtf8Error) -> Self {
Error::with_message(Errno::EINVAL, "Invalid utf-8 string")
}
}
impl From<core::ffi::FromBytesUntilNulError> for Error {
fn from(_: core::ffi::FromBytesUntilNulError) -> Self {
Error::with_message(Errno::E2BIG, "Cannot find null in cstring")
}
}
impl From<core::ffi::FromBytesWithNulError> for Error {
fn from(_: core::ffi::FromBytesWithNulError) -> Self {
Error::with_message(Errno::E2BIG, "Cannot find null in cstring")
}
}
impl From<cpio_decoder::error::Error> for Error {
fn from(cpio_error: cpio_decoder::error::Error) -> Self {
match cpio_error {
cpio_decoder::error::Error::MagicError => {
Error::with_message(Errno::EINVAL, "CPIO invalid magic number")
}
cpio_decoder::error::Error::Utf8Error => {
Error::with_message(Errno::EINVAL, "CPIO invalid utf-8 string")
}
cpio_decoder::error::Error::ParseIntError => {
Error::with_message(Errno::EINVAL, "CPIO parse int error")
}
cpio_decoder::error::Error::FileTypeError => {
Error::with_message(Errno::EINVAL, "CPIO invalid file type")
}
cpio_decoder::error::Error::FileNameError => {
Error::with_message(Errno::EINVAL, "CPIO invalid file name")
}
cpio_decoder::error::Error::BufferShortError => {
Error::with_message(Errno::EINVAL, "CPIO buffer is too short")
}
cpio_decoder::error::Error::IoError => {
Error::with_message(Errno::EIO, "CPIO buffer I/O error")
}
}
}
}
impl From<Error> for ostd::Error {
fn from(error: Error) -> Self {
match error.errno {
Errno::EACCES => ostd::Error::AccessDenied,
Errno::EIO => ostd::Error::IoError,
Errno::ENOMEM => ostd::Error::NoMemory,
Errno::EFAULT => ostd::Error::PageFault,
Errno::EINVAL => ostd::Error::InvalidArgs,
Errno::EBUSY => ostd::Error::NotEnoughResources,
_ => ostd::Error::InvalidArgs,
}
}
}
impl From<alloc::ffi::NulError> for Error {
fn from(_: alloc::ffi::NulError) -> Self {
Error::with_message(Errno::E2BIG, "Cannot find null in cstring")
}
}
impl From<int_to_c_enum::TryFromIntError> for Error {
fn from(_: int_to_c_enum::TryFromIntError) -> Self {
Error::with_message(Errno::EINVAL, "Invalid enum value")
}
}
#[macro_export]
macro_rules! return_errno {
($errno: expr) => {
return Err($crate::error::Error::new($errno))
};
}
#[macro_export]
macro_rules! return_errno_with_message {
($errno: expr, $message: expr) => {
return Err($crate::error::Error::with_message($errno, $message))
};
}