From ef24de24a82fe681581cc130f342363c47c0969a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 7 Jun 2024 07:48:48 +0200 Subject: Merging upstream version 1.75.0+dfsg1. Signed-off-by: Daniel Baumann --- .../redox_syscall-0.3.5/src/scheme/scheme_block.rs | 206 +++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 vendor/redox_syscall-0.3.5/src/scheme/scheme_block.rs (limited to 'vendor/redox_syscall-0.3.5/src/scheme/scheme_block.rs') diff --git a/vendor/redox_syscall-0.3.5/src/scheme/scheme_block.rs b/vendor/redox_syscall-0.3.5/src/scheme/scheme_block.rs new file mode 100644 index 000000000..3b3de4bc9 --- /dev/null +++ b/vendor/redox_syscall-0.3.5/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 { + 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::() { + self.fmap_old(packet.b, unsafe { &*(packet.c as *const OldMap) }) + } else { + Err(Error::new(EFAULT)) + }, + SYS_FMAP => if packet.d >= mem::size_of::() { + 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::() { + 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), + _ => 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 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 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 fmap_old(&self, id: usize, map: &OldMap) -> Result> { + Err(Error::new(EBADF)) + } + #[allow(unused_variables)] + fn fmap(&self, id: usize, map: &Map) -> Result> { + 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> { + Ok(Some(0)) + } + + #[allow(unused_variables)] + fn funmap(&self, address: usize, length: usize) -> Result> { + Ok(Some(0)) + } + + #[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)) + } +} -- cgit v1.2.3