From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Mon, 8 Jan 2024 01:21:28 +0400 Subject: Initial vendor packages Signed-off-by: Valentin Popov --- vendor/redox_syscall/src/scheme/generate.sh | 25 +++ vendor/redox_syscall/src/scheme/mod.rs | 68 ++++++++ vendor/redox_syscall/src/scheme/scheme.rs | 194 +++++++++++++++++++++ vendor/redox_syscall/src/scheme/scheme_block.rs | 194 +++++++++++++++++++++ .../redox_syscall/src/scheme/scheme_block_mut.rs | 194 +++++++++++++++++++++ vendor/redox_syscall/src/scheme/scheme_mut.rs | 194 +++++++++++++++++++++ vendor/redox_syscall/src/scheme/seek.rs | 33 ++++ 7 files changed, 902 insertions(+) create mode 100755 vendor/redox_syscall/src/scheme/generate.sh create mode 100644 vendor/redox_syscall/src/scheme/mod.rs create mode 100644 vendor/redox_syscall/src/scheme/scheme.rs create mode 100644 vendor/redox_syscall/src/scheme/scheme_block.rs create mode 100644 vendor/redox_syscall/src/scheme/scheme_block_mut.rs create mode 100644 vendor/redox_syscall/src/scheme/scheme_mut.rs create mode 100644 vendor/redox_syscall/src/scheme/seek.rs (limited to 'vendor/redox_syscall/src/scheme') diff --git a/vendor/redox_syscall/src/scheme/generate.sh b/vendor/redox_syscall/src/scheme/generate.sh new file mode 100755 index 0000000..be851f5 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/generate.sh @@ -0,0 +1,25 @@ +#!/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/' \ +| 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>/g' \ +| sed 's/convert_to_this_scheme/convert_to_this_scheme_block/g' \ +| sed 's/convert_in_scheme_handle/convert_in_scheme_handle_block/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..61655da --- /dev/null +++ b/vendor/redox_syscall/src/scheme/mod.rs @@ -0,0 +1,68 @@ +use core::{slice, str}; + +use crate::{Error, Result, EOPNOTSUPP, ESKMSG, Packet, SKMSG_FRETURNFD}; + +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; + +pub struct CallerCtx { + pub pid: usize, + pub uid: u32, + pub gid: u32, +} + +pub enum OpenResult { + ThisScheme { number: usize }, + OtherScheme { fd: usize }, +} + +// TODO: Find a better solution than generate.sh +pub(crate) fn convert_to_this_scheme(r: Result) -> Result { + r.map(|number| OpenResult::ThisScheme { number }) +} +pub(crate) fn convert_to_this_scheme_block(r: Result>) -> Result> { + r.map(|o| o.map(|number| OpenResult::ThisScheme { number })) +} +pub(crate) fn convert_in_scheme_handle_block(_: &Packet, result: Result>) -> Result> { + match result { + Ok(Some(OpenResult::ThisScheme { number })) => Ok(Some(number)), + Ok(Some(OpenResult::OtherScheme { .. })) => Err(Error::new(EOPNOTSUPP)), + Ok(None) => Ok(None), + Err(err) => Err(err), + } +} +pub(crate) fn convert_in_scheme_handle(packet: &mut Packet, result: Result) -> Result { + match result { + Ok(OpenResult::ThisScheme { number }) => Ok(number), + Ok(OpenResult::OtherScheme { fd }) => { + packet.b = SKMSG_FRETURNFD; + packet.c = fd; + Err(Error::new(ESKMSG)) + } + Err(err) => Err(err), + } +} + +impl CallerCtx { + pub fn from_packet(packet: &Packet) -> Self { + Self { + pid: packet.pid, + uid: packet.uid, + gid: packet.gid, + } + } +} diff --git a/vendor/redox_syscall/src/scheme/scheme.rs b/vendor/redox_syscall/src/scheme/scheme.rs new file mode 100644 index 0000000..ee09d69 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme.rs @@ -0,0 +1,194 @@ +use core::{mem, slice}; + +use crate::CallerCtx; +use crate::OpenResult; +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::*; + +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) } { + convert_in_scheme_handle(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet))) + } + 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 => convert_in_scheme_handle(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))), + 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_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::() { + self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_FSTATVFS => if packet.d >= mem::size_of::() { + 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::() { + self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::()) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_CLOSE => self.close(packet.b), + + KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)), + KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)), + + _ => 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 { + Err(Error::new(ENOENT)) + } + #[allow(unused_variables)] + fn xopen(&self, path: &str, flags: usize, ctx: &CallerCtx) -> Result { + convert_to_this_scheme(self.open(path, flags, ctx.uid, ctx.gid)) + } + + #[allow(unused_variables)] + fn chmod(&self, path: &str, mode: u16, uid: u32, gid: u32) -> Result { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&self, path: &str, uid: u32, gid: u32) -> Result { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&self, path: &str, uid: u32, gid: u32) -> Result { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&self, old_id: usize, buf: &[u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn xdup(&self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result { + convert_to_this_scheme(self.dup(old_id, buf)) + } + + #[allow(unused_variables)] + fn read(&self, id: usize, buf: &mut [u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&self, id: usize, buf: &[u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&self, id: usize, pos: isize, whence: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&self, id: usize, mode: u16) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&self, id: usize, uid: u32, gid: u32) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&self, id: usize, flags: EventFlags) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fpath(&self, id: usize, buf: &mut [u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&self, id: usize, path: &str, uid: u32, gid: u32) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&self, id: usize, stat: &mut Stat) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&self, id: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&self, id: usize, len: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&self, id: usize, times: &[TimeSpec]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&self, id: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn mmap_prep(&self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result { + Err(Error::new(EOPNOTSUPP)) + } + + #[allow(unused_variables)] + fn munmap(&self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result { + Err(Error::new(EOPNOTSUPP)) + } +} 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..e74e3b7 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_block.rs @@ -0,0 +1,194 @@ +use core::{mem, slice}; + +use crate::CallerCtx; +use crate::OpenResult; +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::*; + +pub trait SchemeBlock { + fn handle(&self, packet: &Packet) -> Option { + let res = match packet.a { + SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + convert_in_scheme_handle_block(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet))) + } + 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 => convert_in_scheme_handle_block(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))), + 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_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::() { + self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_FSTATVFS => if packet.d >= mem::size_of::() { + 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::() { + self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::()) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_CLOSE => self.close(packet.b), + + KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)), + KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)), + + _ => 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> { + Err(Error::new(ENOENT)) + } + #[allow(unused_variables)] + fn xopen(&self, path: &str, flags: usize, ctx: &CallerCtx) -> Result> { + convert_to_this_scheme_block(self.open(path, flags, ctx.uid, ctx.gid)) + } + + #[allow(unused_variables)] + fn chmod(&self, path: &str, mode: u16, uid: u32, gid: u32) -> Result> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&self, path: &str, uid: u32, gid: u32) -> Result> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&self, path: &str, uid: u32, gid: u32) -> Result> { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&self, old_id: usize, buf: &[u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn xdup(&self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result> { + convert_to_this_scheme_block(self.dup(old_id, buf)) + } + + #[allow(unused_variables)] + fn read(&self, id: usize, buf: &mut [u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&self, id: usize, buf: &[u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&self, id: usize, pos: isize, whence: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&self, id: usize, mode: u16) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&self, id: usize, uid: u32, gid: u32) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&self, id: usize, cmd: usize, arg: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&self, id: usize, flags: EventFlags) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fpath(&self, id: usize, buf: &mut [u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&self, id: usize, path: &str, uid: u32, gid: u32) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&self, id: usize, stat: &mut Stat) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&self, id: usize, stat: &mut StatVfs) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&self, id: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&self, id: usize, len: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&self, id: usize, times: &[TimeSpec]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&self, id: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn mmap_prep(&self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result> { + Err(Error::new(EOPNOTSUPP)) + } + + #[allow(unused_variables)] + fn munmap(&self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result> { + Err(Error::new(EOPNOTSUPP)) + } +} 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..fd2c590 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_block_mut.rs @@ -0,0 +1,194 @@ +use core::{mem, slice}; + +use crate::CallerCtx; +use crate::OpenResult; +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::*; + +pub trait SchemeBlockMut { + fn handle(&mut self, packet: &Packet) -> Option { + let res = match packet.a { + SYS_OPEN => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + convert_in_scheme_handle_block(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet))) + } + 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 => convert_in_scheme_handle_block(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))), + 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_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::() { + self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_FSTATVFS => if packet.d >= mem::size_of::() { + 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::() { + self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::()) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_CLOSE => self.close(packet.b), + + KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)), + KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)), + + _ => 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> { + Err(Error::new(ENOENT)) + } + #[allow(unused_variables)] + fn xopen(&mut self, path: &str, flags: usize, ctx: &CallerCtx) -> Result> { + convert_to_this_scheme_block(self.open(path, flags, ctx.uid, ctx.gid)) + } + + #[allow(unused_variables)] + fn chmod(&mut self, path: &str, mode: u16, uid: u32, gid: u32) -> Result> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&mut self, path: &str, uid: u32, gid: u32) -> Result> { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&mut self, path: &str, uid: u32, gid: u32) -> Result> { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&mut self, old_id: usize, buf: &[u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn xdup(&mut self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result> { + convert_to_this_scheme_block(self.dup(old_id, buf)) + } + + #[allow(unused_variables)] + fn read(&mut self, id: usize, buf: &mut [u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&mut self, id: usize, buf: &[u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&mut self, id: usize, pos: isize, whence: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&mut self, id: usize, mode: u16) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&mut self, id: usize, flags: EventFlags) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&mut self, id: usize, path: &str, uid: u32, gid: u32) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&mut self, id: usize, stat: &mut StatVfs) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&mut self, id: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&mut self, id: usize, len: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&mut self, id: usize) -> Result> { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn mmap_prep(&mut self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result> { + Err(Error::new(EOPNOTSUPP)) + } + + #[allow(unused_variables)] + fn munmap(&mut self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result> { + Err(Error::new(EOPNOTSUPP)) + } +} 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..2eea4dc --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_mut.rs @@ -0,0 +1,194 @@ +use core::{mem, slice}; + +use crate::CallerCtx; +use crate::OpenResult; +use crate::data::*; +use crate::error::*; +use crate::flag::*; +use crate::number::*; +use crate::scheme::*; + +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) } { + convert_in_scheme_handle(packet, self.xopen(path, packet.d, &CallerCtx::from_packet(&packet))) + } + 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 => convert_in_scheme_handle(packet, self.xdup(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, &CallerCtx::from_packet(&packet))), + 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_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::() { + self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_FSTATVFS => if packet.d >= mem::size_of::() { + 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::() { + self.futimens(packet.b, unsafe { slice::from_raw_parts(packet.c as *const TimeSpec, packet.d / mem::size_of::()) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_CLOSE => self.close(packet.b), + + KSMSG_MMAP_PREP => self.mmap_prep(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MapFlags::from_bits_truncate(packet.d)), + KSMSG_MUNMAP => self.munmap(packet.b, u64::from(packet.uid) | (u64::from(packet.gid) << 32), packet.c, MunmapFlags::from_bits_truncate(packet.d)), + + _ => 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 { + Err(Error::new(ENOENT)) + } + #[allow(unused_variables)] + fn xopen(&mut self, path: &str, flags: usize, ctx: &CallerCtx) -> Result { + convert_to_this_scheme(self.open(path, flags, ctx.uid, ctx.gid)) + } + + #[allow(unused_variables)] + fn chmod(&mut self, path: &str, mode: u16, uid: u32, gid: u32) -> Result { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn rmdir(&mut self, path: &str, uid: u32, gid: u32) -> Result { + Err(Error::new(ENOENT)) + } + + #[allow(unused_variables)] + fn unlink(&mut self, path: &str, uid: u32, gid: u32) -> Result { + Err(Error::new(ENOENT)) + } + + /* Resource operations */ + #[allow(unused_variables)] + fn dup(&mut self, old_id: usize, buf: &[u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn xdup(&mut self, old_id: usize, buf: &[u8], ctx: &CallerCtx) -> Result { + convert_to_this_scheme(self.dup(old_id, buf)) + } + + #[allow(unused_variables)] + fn read(&mut self, id: usize, buf: &mut [u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn write(&mut self, id: usize, buf: &[u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn seek(&mut self, id: usize, pos: isize, whence: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchmod(&mut self, id: usize, mode: u16) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fchown(&mut self, id: usize, uid: u32, gid: u32) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fcntl(&mut self, id: usize, cmd: usize, arg: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fevent(&mut self, id: usize, flags: EventFlags) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn frename(&mut self, id: usize, path: &str, uid: u32, gid: u32) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fstatvfs(&mut self, id: usize, stat: &mut StatVfs) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn fsync(&mut self, id: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn ftruncate(&mut self, id: usize, len: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn futimens(&mut self, id: usize, times: &[TimeSpec]) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn close(&mut self, id: usize) -> Result { + Err(Error::new(EBADF)) + } + + #[allow(unused_variables)] + fn mmap_prep(&mut self, id: usize, offset: u64, size: usize, flags: MapFlags) -> Result { + Err(Error::new(EOPNOTSUPP)) + } + + #[allow(unused_variables)] + fn munmap(&mut self, id: usize, offset: u64, size: usize, flags: MunmapFlags) -> Result { + Err(Error::new(EOPNOTSUPP)) + } +} 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 { + 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 { + 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)) + } +} \ No newline at end of file -- cgit v1.2.3