diff options
Diffstat (limited to 'vendor/redox_syscall/src/scheme')
| -rwxr-xr-x | vendor/redox_syscall/src/scheme/generate.sh | 23 | ||||
| -rw-r--r-- | vendor/redox_syscall/src/scheme/mod.rs | 18 | ||||
| -rw-r--r-- | vendor/redox_syscall/src/scheme/scheme.rs | 206 | ||||
| -rw-r--r-- | vendor/redox_syscall/src/scheme/scheme_block.rs | 206 | ||||
| -rw-r--r-- | vendor/redox_syscall/src/scheme/scheme_block_mut.rs | 206 | ||||
| -rw-r--r-- | vendor/redox_syscall/src/scheme/scheme_mut.rs | 206 | ||||
| -rw-r--r-- | vendor/redox_syscall/src/scheme/seek.rs | 33 |
7 files changed, 898 insertions, 0 deletions
diff --git a/vendor/redox_syscall/src/scheme/generate.sh b/vendor/redox_syscall/src/scheme/generate.sh new file mode 100755 index 0000000..a877cda --- /dev/null +++ b/vendor/redox_syscall/src/scheme/generate.sh @@ -0,0 +1,23 @@ +#!/usr/bin/env bash + +set -e + +echo "Generating SchemeMut from Scheme" +sed 's/trait Scheme/trait SchemeMut/' scheme.rs \ +| sed 's/\&self/\&mut self/g' \ +> scheme_mut.rs + +echo "Generating SchemeBlock from Scheme" +sed 's/trait Scheme/trait SchemeBlock/' scheme.rs \ +| sed 's/fn handle(\&self, packet: \&mut Packet)/fn handle(\&self, packet: \&Packet) -> Option<usize>/' \ +| sed 's/packet.a = Error::mux(res);/res.transpose().map(Error::mux)/' \ +| sed 's/\.map(|f| f\.bits())/\.map(|f| f.map(|f| f.bits()))/' \ +| sed 's/\.map(|o| o as usize)/.map(|o| o.map(|o| o as usize))/' \ +| sed 's/Ok(0)/Ok(Some(0))/g' \ +| sed 's/Result<\([^>]\+\)>/Result<Option<\1>>/g' \ +> scheme_block.rs + +echo "Generating SchemeBlockMut from SchemeBlock" +sed 's/trait SchemeBlock/trait SchemeBlockMut/' scheme_block.rs \ +| sed 's/\&self/\&mut self/g' \ +> scheme_block_mut.rs diff --git a/vendor/redox_syscall/src/scheme/mod.rs b/vendor/redox_syscall/src/scheme/mod.rs new file mode 100644 index 0000000..f65d1e2 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/mod.rs @@ -0,0 +1,18 @@ +use core::{slice, str}; + +pub use self::scheme::Scheme; +pub use self::scheme_mut::SchemeMut; +pub use self::scheme_block::SchemeBlock; +pub use self::scheme_block_mut::SchemeBlockMut; +pub use self::seek::*; + +unsafe fn str_from_raw_parts(ptr: *const u8, len: usize) -> Option<&'static str> { + let slice = slice::from_raw_parts(ptr, len); + str::from_utf8(slice).ok() +} + +mod scheme; +mod scheme_mut; +mod scheme_block; +mod scheme_block_mut; +mod seek; diff --git a/vendor/redox_syscall/src/scheme/scheme.rs b/vendor/redox_syscall/src/scheme/scheme.rs new file mode 100644 index 0000000..6bf3617 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme.rs @@ -0,0 +1,206 @@ +use core::{mem, slice}; + +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::str_from_raw_parts; + +pub trait Scheme { + fn handle(&self, packet: &mut Packet) { + let res = match packet.a { + SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.open(path, packet.d, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.rmdir(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_UNLINK => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.unlink(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + + 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 as isize, packet.d).map(|o| o as usize), + 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, EventFlags::from_bits_truncate(packet.c)).map(|f| f.bits()), + SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() { + self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) }) + } else { + Err(Error::new(EFAULT)) + }, + 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_OLD => self.funmap_old(packet.b), + SYS_FUNMAP => self.funmap(packet.b, packet.c), + SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }), + SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } { + self.frename(packet.b, path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + 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: &str, flags: usize, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn chmod(&self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&self, path: &str, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&self, path: &str, 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: isize, whence: usize) -> Result<isize> { + 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: EventFlags) -> Result<EventFlags> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fmap_old(&self, id: usize, map: &OldMap) -> Result<usize> { + Err(Error::new(EBADF)) + } + #[allow(unused_variables)] + fn fmap(&self, id: usize, map: &Map) -> Result<usize> { + if map.flags.contains(MapFlags::MAP_FIXED) { + return Err(Error::new(EINVAL)); + } + self.fmap_old(id, &OldMap { + offset: map.offset, + size: map.size, + flags: map.flags, + }) + } + + #[allow(unused_variables)] + fn funmap_old(&self, address: usize) -> Result<usize> { + Ok(0) + } + + #[allow(unused_variables)] + fn funmap(&self, address: usize, length: usize) -> Result<usize> { + Ok(0) + } + + #[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: &str, 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)) + } +} diff --git a/vendor/redox_syscall/src/scheme/scheme_block.rs b/vendor/redox_syscall/src/scheme/scheme_block.rs new file mode 100644 index 0000000..3b3de4b --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_block.rs @@ -0,0 +1,206 @@ +use core::{mem, slice}; + +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::str_from_raw_parts; + +pub trait SchemeBlock { + fn handle(&self, packet: &Packet) -> Option<usize> { + let res = match packet.a { + SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.open(path, packet.d, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.rmdir(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_UNLINK => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.unlink(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + + 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 as isize, packet.d).map(|o| o.map(|o| o as usize)), + 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, EventFlags::from_bits_truncate(packet.c)).map(|f| f.map(|f| f.bits())), + SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() { + self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) }) + } else { + Err(Error::new(EFAULT)) + }, + 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_OLD => self.funmap_old(packet.b), + SYS_FUNMAP => self.funmap(packet.b, packet.c), + SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }), + SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } { + self.frename(packet.b, path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + 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)) + }; + + res.transpose().map(Error::mux) + } + + /* Scheme operations */ + + #[allow(unused_variables)] + fn open(&self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn chmod(&self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&self, path: &str, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&self, path: &str, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&self, old_id: usize, buf: &[u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn read(&self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&self, id: usize, buf: &[u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&self, id: usize, pos: isize, whence: usize) -> Result<Option<isize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&self, id: usize, mode: u16) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&self, id: usize, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&self, id: usize, flags: EventFlags) -> Result<Option<EventFlags>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fmap_old(&self, id: usize, map: &OldMap) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + #[allow(unused_variables)] + fn fmap(&self, id: usize, map: &Map) -> Result<Option<usize>> { + if map.flags.contains(MapFlags::MAP_FIXED) { + return Err(Error::new(EINVAL)); + } + self.fmap_old(id, &OldMap { + offset: map.offset, + size: map.size, + flags: map.flags, + }) + } + + #[allow(unused_variables)] + fn funmap_old(&self, address: usize) -> Result<Option<usize>> { + Ok(Some(0)) + } + + #[allow(unused_variables)] + fn funmap(&self, address: usize, length: usize) -> Result<Option<usize>> { + Ok(Some(0)) + } + + #[allow(unused_variables)] + fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&self, id: usize, path: &str, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&self, id: usize, stat: &mut Stat) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&self, id: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&self, id: usize, len: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&self, id: usize, times: &[TimeSpec]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&self, id: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } +} diff --git a/vendor/redox_syscall/src/scheme/scheme_block_mut.rs b/vendor/redox_syscall/src/scheme/scheme_block_mut.rs new file mode 100644 index 0000000..1fae3a0 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_block_mut.rs @@ -0,0 +1,206 @@ +use core::{mem, slice}; + +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::str_from_raw_parts; + +pub trait SchemeBlockMut { + fn handle(&mut self, packet: &Packet) -> Option<usize> { + let res = match packet.a { + SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.open(path, packet.d, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.rmdir(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_UNLINK => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.unlink(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + + 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 as isize, packet.d).map(|o| o.map(|o| o as usize)), + 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, EventFlags::from_bits_truncate(packet.c)).map(|f| f.map(|f| f.bits())), + SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() { + self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) }) + } else { + Err(Error::new(EFAULT)) + }, + 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_OLD => self.funmap_old(packet.b), + SYS_FUNMAP => self.funmap(packet.b, packet.c), + SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }), + SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } { + self.frename(packet.b, path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + 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)) + }; + + res.transpose().map(Error::mux) + } + + /* Scheme operations */ + + #[allow(unused_variables)] + fn open(&mut self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn chmod(&mut self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&mut self, path: &str, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&mut self, path: &str, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&mut self, old_id: usize, buf: &[u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&mut self, id: usize, buf: &[u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&mut self, id: usize, pos: isize, whence: usize) -> Result<Option<isize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&mut self, id: usize, mode: u16) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&mut self, id: usize, flags: EventFlags) -> Result<Option<EventFlags>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fmap_old(&mut self, id: usize, map: &OldMap) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + #[allow(unused_variables)] + fn fmap(&mut self, id: usize, map: &Map) -> Result<Option<usize>> { + if map.flags.contains(MapFlags::MAP_FIXED) { + return Err(Error::new(EINVAL)); + } + self.fmap_old(id, &OldMap { + offset: map.offset, + size: map.size, + flags: map.flags, + }) + } + + #[allow(unused_variables)] + fn funmap_old(&mut self, address: usize) -> Result<Option<usize>> { + Ok(Some(0)) + } + + #[allow(unused_variables)] + fn funmap(&mut self, address: usize, length: usize) -> Result<Option<usize>> { + Ok(Some(0)) + } + + #[allow(unused_variables)] + fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&mut self, id: usize, path: &str, uid: u32, gid: u32) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&mut self, id: usize, stat: &mut StatVfs) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&mut self, id: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&mut self, id: usize, len: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&mut self, id: usize) -> Result<Option<usize>> { + Err(Error::new(EBADF)) + } +} diff --git a/vendor/redox_syscall/src/scheme/scheme_mut.rs b/vendor/redox_syscall/src/scheme/scheme_mut.rs new file mode 100644 index 0000000..b364b62 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_mut.rs @@ -0,0 +1,206 @@ +use core::{mem, slice}; + +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::str_from_raw_parts; + +pub trait SchemeMut { + fn handle(&mut self, packet: &mut Packet) { + let res = match packet.a { + SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.open(path, packet.d, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_RMDIR => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.rmdir(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + SYS_UNLINK => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.unlink(path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + + 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 as isize, packet.d).map(|o| o as usize), + 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, EventFlags::from_bits_truncate(packet.c)).map(|f| f.bits()), + SYS_FMAP_OLD => if packet.d >= mem::size_of::<OldMap>() { + self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) }) + } else { + Err(Error::new(EFAULT)) + }, + 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_OLD => self.funmap_old(packet.b), + SYS_FUNMAP => self.funmap(packet.b, packet.c), + SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }), + SYS_FRENAME => if let Some(path) = unsafe { str_from_raw_parts(packet.c as *const u8, packet.d) } { + self.frename(packet.b, path, packet.uid, packet.gid) + } else { + Err(Error::new(EINVAL)) + }, + 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(&mut self, path: &str, flags: usize, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn chmod(&mut self, path: &str, mode: u16, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&mut self, path: &str, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&mut self, path: &str, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&mut self, old_id: usize, buf: &[u8]) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&mut self, id: usize, buf: &[u8]) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&mut self, id: usize, pos: isize, whence: usize) -> Result<isize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&mut self, id: usize, mode: u16) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&mut self, id: usize, flags: EventFlags) -> Result<EventFlags> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fmap_old(&mut self, id: usize, map: &OldMap) -> Result<usize> { + Err(Error::new(EBADF)) + } + #[allow(unused_variables)] + fn fmap(&mut self, id: usize, map: &Map) -> Result<usize> { + if map.flags.contains(MapFlags::MAP_FIXED) { + return Err(Error::new(EINVAL)); + } + self.fmap_old(id, &OldMap { + offset: map.offset, + size: map.size, + flags: map.flags, + }) + } + + #[allow(unused_variables)] + fn funmap_old(&mut self, address: usize) -> Result<usize> { + Ok(0) + } + + #[allow(unused_variables)] + fn funmap(&mut self, address: usize, length: usize) -> Result<usize> { + Ok(0) + } + + #[allow(unused_variables)] + fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&mut self, id: usize, path: &str, uid: u32, gid: u32) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&mut self, id: usize, stat: &mut StatVfs) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&mut self, id: usize) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&mut self, id: usize, len: usize) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Result<usize> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&mut self, id: usize) -> Result<usize> { + Err(Error::new(EBADF)) + } +} diff --git a/vendor/redox_syscall/src/scheme/seek.rs b/vendor/redox_syscall/src/scheme/seek.rs new file mode 100644 index 0000000..09a4518 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/seek.rs @@ -0,0 +1,33 @@ +use core::cmp; +use core::convert::TryFrom; +use crate::error::*; +use crate::flag::*; + +/// Helper for seek calls +/// In most cases it's easier to use a usize to track the offset and buffer size internally, +/// but the seek interface uses isize. This wrapper ensures EOVERFLOW errors are returned +/// as appropriate if the value in the usize can't fit in the isize. +pub fn calc_seek_offset_usize(cur_offset: usize, pos: isize, whence: usize, buf_len: usize) -> Result<isize> { + let cur_offset = isize::try_from(cur_offset).or_else(|_| Err(Error::new(EOVERFLOW)))?; + let buf_len = isize::try_from(buf_len).or_else(|_| Err(Error::new(EOVERFLOW)))?; + calc_seek_offset_isize(cur_offset, pos, whence, buf_len) +} + +/// Helper for seek calls +/// Result is guaranteed to be positive. +/// EOVERFLOW returned if the arguments would cause an overflow. +/// EINVAL returned if the new offset is out of bounds. +pub fn calc_seek_offset_isize(cur_offset: isize, pos: isize, whence: usize, buf_len: isize) -> Result<isize> { + let new_offset = match whence { + SEEK_CUR => pos.checked_add(cur_offset), + SEEK_END => pos.checked_add(buf_len), + SEEK_SET => Some(pos), + _ => None, + }; + + match new_offset { + Some(new_offset) if new_offset < 0 => Err(Error::new(EINVAL)), + Some(new_offset) => Ok(cmp::min(new_offset, buf_len)), + None => Err(Error::new(EOVERFLOW)) + } +}
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