diff options
Diffstat (limited to 'vendor/redox_syscall')
28 files changed, 3851 insertions, 0 deletions
diff --git a/vendor/redox_syscall/.cargo-checksum.json b/vendor/redox_syscall/.cargo-checksum.json new file mode 100644 index 000000000..223c03b3c --- /dev/null +++ b/vendor/redox_syscall/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"69f08bb56c6fc199b61cbe959b6e9f93df554f5d4e87d5e64551116cedf15067","LICENSE":"efcfee7981ff72431fffb06925cad00a23dce079ed4354f61030ad5abdb78829","README.md":"9161f18ba7f69b4ca51e844aee8ffb8237513a468c5c3b1f3a5f989044f895ac","src/arch/aarch64.rs":"61b5811b47a29257c3b5e15e7d9d15e7143bad99fbe29f0cb17ead9cbc17186f","src/arch/nonredox.rs":"9eac0fa2cf9eae07f0cafa2dd63c4a820791897a3de9ad1a933ab4f53458dbd8","src/arch/riscv64.rs":"20bf9a8db779059773b113643d0cb3737fbb5d57f45ee39b8ae9d3396b6ef636","src/arch/x86_64.rs":"f40bad2680fd5e7f100ee1afaa805f33dd0e12ec8786b956d47204f66771801d","src/call.rs":"0d3e32e33ecdf75963e5d244f9e86e94047d155c5de5fa3c0085faf18ed97b33","src/daemon.rs":"11cd633298fe2eb89906a4d8c12ab34e4ee355f759e1216cee536f24c7c679b2","src/data.rs":"bd4545d4c2fcc59ff26ae52ad7f773a697d5ccf639a2ffc253cece6b31e94d51","src/error.rs":"ef20f3817f997a1aeb7114628407f19cb8bc13c555d4e093918f38a5d098f798","src/flag.rs":"f07d6a7aa6766d30d0a303c7b3bda5bb4c473dd9dd51687cf8e0631b1bf3ec9d","src/io/dma.rs":"fbc46e924d5913f5a3fb723751d7a9dd1b079ccf058500fde4957aaf9fa7dd1c","src/io/io.rs":"e1d454ff47efac70fdaa709251a5a9c1c5637f931994ba3bf6a38c6db9145822","src/io/mmio.rs":"12d0fb4d4f45097bf2c14f73cb1ce21325eae193b537e9f18af73ed5281b5e63","src/io/mod.rs":"62438ff452c266692ea8fcfc4b6aad73184a1f67276327a4d5f71c4fbbaeab55","src/io/pio.rs":"9ee6f2229b700d1c45b4c8c6242bd99fe69634e16dcd5843d9e8d1c958047406","src/lib.rs":"d30eec6d2480c6dbc74221a10cc662a649bd24dc3ac640bbcdab9e416aab727f","src/number.rs":"fe7b47b06566aa1f8a75f50b685801259df03a1a5c85b91817b4552583cd7862","src/scheme/generate.sh":"dde4e30f4e0223fb1a24ed486a6c36e624c854dbf890862cb6866f4fa3c7a6eb","src/scheme/mod.rs":"cb622405deb0aef4ab04499ea1adfd338c9c5dd9c31a1fe9989786dbf69b49d8","src/scheme/scheme.rs":"30263996f0b4930edd76dace5f5750e48229066bc888bc13365846688d0a870b","src/scheme/scheme_block.rs":"b7a761e4349eb87d106c8af14894e8c4272769b9eb235cd500b075ac1f823683","src/scheme/scheme_block_mut.rs":"4a4fc03bce14757b64006b9bc3fa2779e95382b2d99579870146ee0c3be3f46c","src/scheme/scheme_mut.rs":"e6f0671b77f1bf5263e497c69dec553352249b75d52af62ac19477ba5127f803","src/scheme/seek.rs":"94e044de47b0f00eb0c2aea3fb21001ac2b9aa1e4b20d73fd54163fe92fa63f7","src/tests.rs":"416a428ba6a9c5f0d8f4c3dbe91d9aa940a04472ec9a2d17bc5a66c455b4416f"},"package":"62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"}
\ No newline at end of file diff --git a/vendor/redox_syscall/Cargo.toml b/vendor/redox_syscall/Cargo.toml new file mode 100644 index 000000000..c6a9e03a4 --- /dev/null +++ b/vendor/redox_syscall/Cargo.toml @@ -0,0 +1,26 @@ +# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO +# +# When uploading crates to the registry Cargo will automatically +# "normalize" Cargo.toml files for maximal compatibility +# with all versions of Cargo and also rewrite `path` dependencies +# to registry (e.g., crates.io) dependencies. +# +# If you are reading this file be aware that the original Cargo.toml +# will likely look very different (and much more reasonable). +# See Cargo.toml.orig for the original contents. + +[package] +edition = "2018" +name = "redox_syscall" +version = "0.2.13" +authors = ["Jeremy Soller <jackpot51@gmail.com>"] +description = "A Rust library to access raw Redox system calls" +documentation = "https://docs.rs/redox_syscall" +license = "MIT" +repository = "https://gitlab.redox-os.org/redox-os/syscall" + +[lib] +name = "syscall" + +[dependencies.bitflags] +version = "1.1.0" diff --git a/vendor/redox_syscall/LICENSE b/vendor/redox_syscall/LICENSE new file mode 100644 index 000000000..1292bb7fb --- /dev/null +++ b/vendor/redox_syscall/LICENSE @@ -0,0 +1,22 @@ +Copyright (c) 2017 Redox OS Developers + +MIT License + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/redox_syscall/README.md b/vendor/redox_syscall/README.md new file mode 100644 index 000000000..244c90861 --- /dev/null +++ b/vendor/redox_syscall/README.md @@ -0,0 +1,6 @@ +# syscall +[Redox OS](https://gitlab.redox-os.org/redox-os/redox)'s syscall API + +[](./LICENSE) +[](https://crates.io/crates/redox_syscall) +[](https://docs.rs/redox_syscall) diff --git a/vendor/redox_syscall/src/arch/aarch64.rs b/vendor/redox_syscall/src/arch/aarch64.rs new file mode 100644 index 000000000..e771396e3 --- /dev/null +++ b/vendor/redox_syscall/src/arch/aarch64.rs @@ -0,0 +1,132 @@ +use core::{mem, slice}; +use core::ops::{Deref, DerefMut}; + +use super::error::{Error, Result}; + +macro_rules! syscall { + ($($name:ident($a:ident, $($b:ident, $($c:ident, $($d:ident, $($e:ident, $($f:ident, )?)?)?)?)?);)+) => { + $( + pub unsafe fn $name($a: usize, $($b: usize, $($c: usize, $($d: usize, $($e: usize, $($f: usize)?)?)?)?)?) -> Result<usize> { + let ret: usize; + + core::arch::asm!( + "svc 0", + in("x8") $a, + $( + in("x0") $b, + $( + in("x1") $c, + $( + in("x2") $d, + $( + in("x3") $e, + $( + in("x4") $f, + )? + )? + )? + )? + )? + lateout("x0") ret, + options(nostack), + ); + + Error::demux(ret) + } + )+ + }; +} + +syscall! { + syscall0(a,); + syscall1(a, b,); + syscall2(a, b, c,); + syscall3(a, b, c, d,); + syscall4(a, b, c, d, e,); + syscall5(a, b, c, d, e, f,); +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct IntRegisters { + pub elr_el1: usize, + pub tpidr_el0: usize, + pub tpidrro_el0: usize, + pub spsr_el1: usize, + pub esr_el1: usize, + pub sp_el0: usize, // Shouldn't be used if interrupt occurred at EL1 + pub padding: usize, // To keep the struct even number aligned + pub x30: usize, + pub x29: usize, + pub x28: usize, + pub x27: usize, + pub x26: usize, + pub x25: usize, + pub x24: usize, + pub x23: usize, + pub x22: usize, + pub x21: usize, + pub x20: usize, + pub x19: usize, + pub x18: usize, + pub x17: usize, + pub x16: usize, + pub x15: usize, + pub x14: usize, + pub x13: usize, + pub x12: usize, + pub x11: usize, + pub x10: usize, + pub x9: usize, + pub x8: usize, + pub x7: usize, + pub x6: usize, + pub x5: usize, + pub x4: usize, + pub x3: usize, + pub x2: usize, + pub x1: usize, + pub x0: usize +} + +impl Deref for IntRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const IntRegisters as *const u8, mem::size_of::<IntRegisters>()) + } + } +} + +impl DerefMut for IntRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut IntRegisters as *mut u8, mem::size_of::<IntRegisters>()) + } + } +} + +#[derive(Clone, Copy, Debug, Default)] +#[repr(packed)] +pub struct FloatRegisters { + pub fp_simd_regs: [u128; 32], + pub fpsr: u32, + pub fpcr: u32 +} + +impl Deref for FloatRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const FloatRegisters as *const u8, mem::size_of::<FloatRegisters>()) + } + } +} + +impl DerefMut for FloatRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut FloatRegisters as *mut u8, mem::size_of::<FloatRegisters>()) + } + } +} diff --git a/vendor/redox_syscall/src/arch/nonredox.rs b/vendor/redox_syscall/src/arch/nonredox.rs new file mode 100644 index 000000000..f99a7148c --- /dev/null +++ b/vendor/redox_syscall/src/arch/nonredox.rs @@ -0,0 +1,26 @@ +use super::error::{Error, Result, ENOSYS}; + +pub unsafe fn syscall0(_a: usize) -> Result<usize> { + Err(Error::new(ENOSYS)) +} + +pub unsafe fn syscall1(_a: usize, _b: usize) -> Result<usize> { + Err(Error::new(ENOSYS)) +} + +pub unsafe fn syscall2(_a: usize, _b: usize, _c: usize) -> Result<usize> { + Err(Error::new(ENOSYS)) +} + +pub unsafe fn syscall3(_a: usize, _b: usize, _c: usize, _d: usize) -> Result<usize> { + Err(Error::new(ENOSYS)) +} + +pub unsafe fn syscall4(_a: usize, _b: usize, _c: usize, _d: usize, _e: usize) -> Result<usize> { + Err(Error::new(ENOSYS)) +} + +pub unsafe fn syscall5(_a: usize, _b: usize, _c: usize, _d: usize, _e: usize, _f: usize) + -> Result<usize> { + Err(Error::new(ENOSYS)) +} diff --git a/vendor/redox_syscall/src/arch/riscv64.rs b/vendor/redox_syscall/src/arch/riscv64.rs new file mode 100644 index 000000000..2a90260da --- /dev/null +++ b/vendor/redox_syscall/src/arch/riscv64.rs @@ -0,0 +1,93 @@ +use core::{mem, slice}; +use core::ops::{Deref, DerefMut}; + +use super::error::{Error, Result}; + +macro_rules! syscall { + ($($name:ident($a:ident, $($b:ident, $($c:ident, $($d:ident, $($e:ident, $($f:ident, )?)?)?)?)?);)+) => { + $( + pub unsafe fn $name($a: usize, $($b: usize, $($c: usize, $($d: usize, $($e: usize, $($f: usize)?)?)?)?)?) -> Result<usize> { + let ret: usize; + + asm!( + "ecall", + in("a7") $a, + $( + in("a0") $b, + $( + in("a1") $c, + $( + in("a2") $d, + $( + in("a3") $e, + $( + in("a4") $f, + )? + )? + )? + )? + )? + lateout("a0") ret, + options(nostack), + ); + + Error::demux(ret) + } + )+ + }; +} + +syscall! { + syscall0(a,); + syscall1(a, b,); + syscall2(a, b, c,); + syscall3(a, b, c, d,); + syscall4(a, b, c, d, e,); + syscall5(a, b, c, d, e, f,); +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct IntRegisters { + //TODO +} + +impl Deref for IntRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const IntRegisters as *const u8, mem::size_of::<IntRegisters>()) + } + } +} + +impl DerefMut for IntRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut IntRegisters as *mut u8, mem::size_of::<IntRegisters>()) + } + } +} + +#[derive(Clone, Copy, Debug, Default)] +#[repr(packed)] +pub struct FloatRegisters { + //TODO +} + +impl Deref for FloatRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const FloatRegisters as *const u8, mem::size_of::<FloatRegisters>()) + } + } +} + +impl DerefMut for FloatRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut FloatRegisters as *mut u8, mem::size_of::<FloatRegisters>()) + } + } +} diff --git a/vendor/redox_syscall/src/arch/x86_64.rs b/vendor/redox_syscall/src/arch/x86_64.rs new file mode 100644 index 000000000..f71898e90 --- /dev/null +++ b/vendor/redox_syscall/src/arch/x86_64.rs @@ -0,0 +1,155 @@ +use core::{mem, slice}; +use core::arch::asm; +use core::ops::{Deref, DerefMut}; + +use super::error::{Error, Result}; + +macro_rules! syscall { + ($($name:ident($a:ident, $($b:ident, $($c:ident, $($d:ident, $($e:ident, $($f:ident, )?)?)?)?)?);)+) => { + $( + pub unsafe fn $name(mut $a: usize, $($b: usize, $($c: usize, $($d: usize, $($e: usize, $($f: usize)?)?)?)?)?) -> Result<usize> { + asm!( + "syscall", + inout("rax") $a, + $( + in("rdi") $b, + $( + in("rsi") $c, + $( + in("rdx") $d, + $( + in("r10") $e, + $( + in("r8") $f, + )? + )? + )? + )? + )? + out("rcx") _, + out("r11") _, + options(nostack), + ); + + Error::demux($a) + } + )+ + }; +} + +syscall! { + syscall0(a,); + syscall1(a, b,); + syscall2(a, b, c,); + syscall3(a, b, c, d,); + syscall4(a, b, c, d, e,); + syscall5(a, b, c, d, e, f,); +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct IntRegisters { + // TODO: Some of these don't get set by Redox yet. Should they? + + pub r15: usize, + pub r14: usize, + pub r13: usize, + pub r12: usize, + pub rbp: usize, + pub rbx: usize, + pub r11: usize, + pub r10: usize, + pub r9: usize, + pub r8: usize, + pub rax: usize, + pub rcx: usize, + pub rdx: usize, + pub rsi: usize, + pub rdi: usize, + // pub orig_rax: usize, + pub rip: usize, + pub cs: usize, + pub rflags: usize, + pub rsp: usize, + pub ss: usize, + // pub fs_base: usize, + // pub gs_base: usize, + // pub ds: usize, + // pub es: usize, + pub fs: usize, + // pub gs: usize +} + +impl Deref for IntRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const IntRegisters as *const u8, mem::size_of::<IntRegisters>()) + } + } +} + +impl DerefMut for IntRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut IntRegisters as *mut u8, mem::size_of::<IntRegisters>()) + } + } +} + +#[derive(Clone, Copy, Debug, Default)] +#[repr(packed)] +pub struct FloatRegisters { + pub fcw: u16, + pub fsw: u16, + pub ftw: u8, + pub _reserved: u8, + pub fop: u16, + pub fip: u64, + pub fdp: u64, + pub mxcsr: u32, + pub mxcsr_mask: u32, + pub st_space: [u128; 8], + pub xmm_space: [u128; 16], + // TODO: YMM/ZMM +} + +impl Deref for FloatRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const FloatRegisters as *const u8, mem::size_of::<FloatRegisters>()) + } + } +} + +impl DerefMut for FloatRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut FloatRegisters as *mut u8, mem::size_of::<FloatRegisters>()) + } + } +} +#[derive(Clone, Copy, Debug, Default)] +#[repr(packed)] +pub struct EnvRegisters { + pub fsbase: u64, + pub gsbase: u64, + // TODO: PKRU? +} +impl Deref for EnvRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const EnvRegisters as *const u8, mem::size_of::<EnvRegisters>()) + } + } +} + +impl DerefMut for EnvRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut EnvRegisters as *mut u8, mem::size_of::<EnvRegisters>()) + } + } +} diff --git a/vendor/redox_syscall/src/call.rs b/vendor/redox_syscall/src/call.rs new file mode 100644 index 000000000..f6eb89c8c --- /dev/null +++ b/vendor/redox_syscall/src/call.rs @@ -0,0 +1,420 @@ +use super::arch::*; +use super::data::{Map, SigAction, Stat, StatVfs, TimeSpec}; +use super::error::Result; +use super::flag::*; +use super::number::*; + +use core::{mem, ptr}; + +// Signal restorer +extern "C" fn restorer() -> ! { + sigreturn().unwrap(); + unreachable!(); +} + +/// Change the process's working directory +/// +/// This function will attempt to set the process's working directory to `path`, which can be +/// either a relative, scheme relative, or absolute path. +/// +/// On success, `Ok(0)` will be returned. On error, one of the following errors will be returned. +/// +/// # Errors +/// +/// * `EACCES` - permission is denied for one of the components of `path`, or `path` +/// * `EFAULT` - `path` does not point to the process's addressible memory +/// * `EIO` - an I/O error occurred +/// * `ENOENT` - `path` does not exit +/// * `ENOTDIR` - `path` is not a directory +pub fn chdir<T: AsRef<str>>(path: T) -> Result<usize> { + unsafe { syscall2(SYS_CHDIR, path.as_ref().as_ptr() as usize, path.as_ref().len()) } +} + +#[deprecated( + since = "0.1.55", + note = "use fchmod instead" +)] +pub fn chmod<T: AsRef<str>>(path: T, mode: usize) -> Result<usize> { + unsafe { syscall3(SYS_CHMOD, path.as_ref().as_ptr() as usize, path.as_ref().len(), mode) } +} + +/// Produce a fork of the current process, or a new process thread +pub unsafe fn clone(flags: CloneFlags) -> Result<usize> { + syscall1(SYS_CLONE, flags.bits()) +} + +/// Close a file +pub fn close(fd: usize) -> Result<usize> { + unsafe { syscall1(SYS_CLOSE, fd) } +} + +/// Get the current system time +pub fn clock_gettime(clock: usize, tp: &mut TimeSpec) -> Result<usize> { + unsafe { syscall2(SYS_CLOCK_GETTIME, clock, tp as *mut TimeSpec as usize) } +} + +/// Copy and transform a file descriptor +pub fn dup(fd: usize, buf: &[u8]) -> Result<usize> { + unsafe { syscall3(SYS_DUP, fd, buf.as_ptr() as usize, buf.len()) } +} + +/// Copy and transform a file descriptor +pub fn dup2(fd: usize, newfd: usize, buf: &[u8]) -> Result<usize> { + unsafe { syscall4(SYS_DUP2, fd, newfd, buf.as_ptr() as usize, buf.len()) } +} + +/// Exit the current process +pub fn exit(status: usize) -> Result<usize> { + unsafe { syscall1(SYS_EXIT, status) } +} + +/// Change file permissions +pub fn fchmod(fd: usize, mode: u16) -> Result<usize> { + unsafe { syscall2(SYS_FCHMOD, fd, mode as usize) } + +} + +/// Change file ownership +pub fn fchown(fd: usize, uid: u32, gid: u32) -> Result<usize> { + unsafe { syscall3(SYS_FCHOWN, fd, uid as usize, gid as usize) } + +} + +/// Change file descriptor flags +pub fn fcntl(fd: usize, cmd: usize, arg: usize) -> Result<usize> { + unsafe { syscall3(SYS_FCNTL, fd, cmd, arg) } +} + +/// Replace the current process with a new executable +pub fn fexec(fd: usize, args: &[[usize; 2]], vars: &[[usize; 2]]) -> Result<usize> { + unsafe { syscall5(SYS_FEXEC, fd, args.as_ptr() as usize, args.len(), vars.as_ptr() as usize, vars.len()) } +} + +/// Map a file into memory, but with the ability to set the address to map into, either as a hint +/// or as a requirement of the map. +/// +/// # Errors +/// `EACCES` - the file descriptor was not open for reading +/// `EBADF` - if the file descriptor was invalid +/// `ENODEV` - mmapping was not supported +/// `EINVAL` - invalid combination of flags +/// `EEXIST` - if [`MapFlags::MAP_FIXED`] was set, and the address specified was already in use. +/// +pub unsafe fn fmap(fd: usize, map: &Map) -> Result<usize> { + syscall3(SYS_FMAP, fd, map as *const Map as usize, mem::size_of::<Map>()) +} + +/// Unmap whole (or partial) continous memory-mapped files +pub unsafe fn funmap(addr: usize, len: usize) -> Result<usize> { + syscall2(SYS_FUNMAP, addr, len) +} + +/// Retrieve the canonical path of a file +pub fn fpath(fd: usize, buf: &mut [u8]) -> Result<usize> { + unsafe { syscall3(SYS_FPATH, fd, buf.as_mut_ptr() as usize, buf.len()) } +} + +/// Rename a file +pub fn frename<T: AsRef<str>>(fd: usize, path: T) -> Result<usize> { + unsafe { syscall3(SYS_FRENAME, fd, path.as_ref().as_ptr() as usize, path.as_ref().len()) } +} + +/// Get metadata about a file +pub fn fstat(fd: usize, stat: &mut Stat) -> Result<usize> { + unsafe { syscall3(SYS_FSTAT, fd, stat as *mut Stat as usize, mem::size_of::<Stat>()) } +} + +/// Get metadata about a filesystem +pub fn fstatvfs(fd: usize, stat: &mut StatVfs) -> Result<usize> { + unsafe { syscall3(SYS_FSTATVFS, fd, stat as *mut StatVfs as usize, mem::size_of::<StatVfs>()) } +} + +/// Sync a file descriptor to its underlying medium +pub fn fsync(fd: usize) -> Result<usize> { + unsafe { syscall1(SYS_FSYNC, fd) } +} + +/// Truncate or extend a file to a specified length +pub fn ftruncate(fd: usize, len: usize) -> Result<usize> { + unsafe { syscall2(SYS_FTRUNCATE, fd, len) } +} + +// Change modify and/or access times +pub fn futimens(fd: usize, times: &[TimeSpec]) -> Result<usize> { + unsafe { syscall3(SYS_FUTIMENS, fd, times.as_ptr() as usize, times.len() * mem::size_of::<TimeSpec>()) } +} + +/// Fast userspace mutex +pub unsafe fn futex(addr: *mut i32, op: usize, val: i32, val2: usize, addr2: *mut i32) + -> Result<usize> { + syscall5(SYS_FUTEX, addr as usize, op, (val as isize) as usize, val2, addr2 as usize) +} + +/// Get the current working directory +pub fn getcwd(buf: &mut [u8]) -> Result<usize> { + unsafe { syscall2(SYS_GETCWD, buf.as_mut_ptr() as usize, buf.len()) } +} + +/// Get the effective group ID +pub fn getegid() -> Result<usize> { + unsafe { syscall0(SYS_GETEGID) } +} + +/// Get the effective namespace +pub fn getens() -> Result<usize> { + unsafe { syscall0(SYS_GETENS) } +} + +/// Get the effective user ID +pub fn geteuid() -> Result<usize> { + unsafe { syscall0(SYS_GETEUID) } +} + +/// Get the current group ID +pub fn getgid() -> Result<usize> { + unsafe { syscall0(SYS_GETGID) } +} + +/// Get the current namespace +pub fn getns() -> Result<usize> { + unsafe { syscall0(SYS_GETNS) } +} + +/// Get the current process ID +pub fn getpid() -> Result<usize> { + unsafe { syscall0(SYS_GETPID) } +} + +/// Get the process group ID +pub fn getpgid(pid: usize) -> Result<usize> { + unsafe { syscall1(SYS_GETPGID, pid) } +} + +/// Get the parent process ID +pub fn getppid() -> Result<usize> { + unsafe { syscall0(SYS_GETPPID) } +} + +/// Get the current user ID +pub fn getuid() -> Result<usize> { + unsafe { syscall0(SYS_GETUID) } +} + +/// Set the I/O privilege level +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +/// * `EINVAL` - `level > 3` +pub unsafe fn iopl(level: usize) -> Result<usize> { + syscall1(SYS_IOPL, level) +} + +/// Send a signal `sig` to the process identified by `pid` +pub fn kill(pid: usize, sig: usize) -> Result<usize> { + unsafe { syscall2(SYS_KILL, pid, sig) } +} + +/// Create a link to a file +pub unsafe fn link(old: *const u8, new: *const u8) -> Result<usize> { + syscall2(SYS_LINK, old as usize, new as usize) +} + +/// Seek to `offset` bytes in a file descriptor +pub fn lseek(fd: usize, offset: isize, whence: usize) -> Result<usize> { + unsafe { syscall3(SYS_LSEEK, fd, offset as usize, whence) } +} + +/// Make a new scheme namespace +pub fn mkns(schemes: &[[usize; 2]]) -> Result<usize> { + unsafe { syscall2(SYS_MKNS, schemes.as_ptr() as usize, schemes.len()) } +} + +/// Change mapping flags +pub unsafe fn mprotect(addr: usize, size: usize, flags: MapFlags) -> Result<usize> { + syscall3(SYS_MPROTECT, addr, size, flags.bits()) +} + +/// Sleep for the time specified in `req` +pub fn nanosleep(req: &TimeSpec, rem: &mut TimeSpec) -> Result<usize> { + unsafe { syscall2(SYS_NANOSLEEP, req as *const TimeSpec as usize, + rem as *mut TimeSpec as usize) } +} + +/// Open a file +pub fn open<T: AsRef<str>>(path: T, flags: usize) -> Result<usize> { + unsafe { syscall3(SYS_OPEN, path.as_ref().as_ptr() as usize, path.as_ref().len(), flags) } +} + +/// Allocate frames, linearly in physical memory. +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +/// * `ENOMEM` - the system has run out of available memory +pub unsafe fn physalloc(size: usize) -> Result<usize> { + syscall1(SYS_PHYSALLOC, size) +} + +/// Allocate frames, linearly in physical memory, with an extra set of flags. If the flags contain +/// [`PARTIAL_ALLOC`], this will result in `physalloc3` with `min = 1`. +/// +/// Refer to the simpler [`physalloc`] and the more complex [`physalloc3`], that this convenience +/// function is based on. +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +/// * `ENOMEM` - the system has run out of available memory +pub unsafe fn physalloc2(size: usize, flags: usize) -> Result<usize> { + let mut ret = 1usize; + physalloc3(size, flags, &mut ret) +} + +/// Allocate frames, linearly in physical memory, with an extra set of flags. If the flags contain +/// [`PARTIAL_ALLOC`], the `min` parameter specifies the number of frames that have to be allocated +/// for this operation to succeed. The return value is the offset of the first frame, and `min` is +/// overwritten with the number of frames actually allocated. +/// +/// Refer to the simpler [`physalloc`] and the simpler library function [`physalloc2`]. +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +/// * `ENOMEM` - the system has run out of available memory +/// * `EINVAL` - `min = 0` +pub unsafe fn physalloc3(size: usize, flags: usize, min: &mut usize) -> Result<usize> { + syscall3(SYS_PHYSALLOC3, size, flags, min as *mut usize as usize) +} + +/// Free physically allocated pages +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +pub unsafe fn physfree(physical_address: usize, size: usize) -> Result<usize> { + syscall2(SYS_PHYSFREE, physical_address, size) +} + +/// Map physical memory to virtual memory +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +pub unsafe fn physmap(physical_address: usize, size: usize, flags: PhysmapFlags) -> Result<usize> { + syscall3(SYS_PHYSMAP, physical_address, size, flags.bits()) +} + +/// Unmap previously mapped physical memory +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +/// * `EFAULT` - `virtual_address` has not been mapped +pub unsafe fn physunmap(virtual_address: usize) -> Result<usize> { + syscall1(SYS_PHYSUNMAP, virtual_address) +} + +/// Create a pair of file descriptors referencing the read and write ends of a pipe +pub fn pipe2(fds: &mut [usize; 2], flags: usize) -> Result<usize> { + unsafe { syscall2(SYS_PIPE2, fds.as_ptr() as usize, flags) } +} + +/// Read from a file descriptor into a buffer +pub fn read(fd: usize, buf: &mut [u8]) -> Result<usize> { + unsafe { syscall3(SYS_READ, fd, buf.as_mut_ptr() as usize, buf.len()) } +} + +/// Remove a directory +pub fn rmdir<T: AsRef<str>>(path: T) -> Result<usize> { + unsafe { syscall2(SYS_RMDIR, path.as_ref().as_ptr() as usize, path.as_ref().len()) } +} + +/// Set the process group ID +pub fn setpgid(pid: usize, pgid: usize) -> Result<usize> { + unsafe { syscall2(SYS_SETPGID, pid, pgid) } +} + +/// Set the current process group IDs +pub fn setregid(rgid: usize, egid: usize) -> Result<usize> { + unsafe { syscall2(SYS_SETREGID, rgid, egid) } +} + +/// Make a new scheme namespace +pub fn setrens(rns: usize, ens: usize) -> Result<usize> { + unsafe { syscall2(SYS_SETRENS, rns, ens) } +} + +/// Set the current process user IDs +pub fn setreuid(ruid: usize, euid: usize) -> Result<usize> { + unsafe { syscall2(SYS_SETREUID, ruid, euid) } +} + +/// Set up a signal handler +pub fn sigaction(sig: usize, act: Option<&SigAction>, oldact: Option<&mut SigAction>) -> Result<usize> { + unsafe { syscall4(SYS_SIGACTION, sig, + act.map(|x| x as *const _).unwrap_or_else(ptr::null) as usize, + oldact.map(|x| x as *mut _).unwrap_or_else(ptr::null_mut) as usize, + restorer as usize) } +} + +/// Get and/or set signal masks +pub fn sigprocmask(how: usize, set: Option<&[u64; 2]>, oldset: Option<&mut [u64; 2]>) -> Result<usize> { + unsafe { syscall3(SYS_SIGPROCMASK, how, + set.map(|x| x as *const _).unwrap_or_else(ptr::null) as usize, + oldset.map(|x| x as *mut _).unwrap_or_else(ptr::null_mut) as usize) } +} + +// Return from signal handler +pub fn sigreturn() -> Result<usize> { + unsafe { syscall0(SYS_SIGRETURN) } +} + +/// Set the file mode creation mask +pub fn umask(mask: usize) -> Result<usize> { + unsafe { syscall1(SYS_UMASK, mask) } +} + +/// Remove a file +pub fn unlink<T: AsRef<str>>(path: T) -> Result<usize> { + unsafe { syscall2(SYS_UNLINK, path.as_ref().as_ptr() as usize, path.as_ref().len()) } +} + +/// Convert a virtual address to a physical one +/// +/// # Errors +/// +/// * `EPERM` - `uid != 0` +pub unsafe fn virttophys(virtual_address: usize) -> Result<usize> { + syscall1(SYS_VIRTTOPHYS, virtual_address) +} + +/// Check if a child process has exited or received a signal +pub fn waitpid(pid: usize, status: &mut usize, options: WaitFlags) -> Result<usize> { + unsafe { syscall3(SYS_WAITPID, pid, status as *mut usize as usize, options.bits()) } +} + +/// Write a buffer to a file descriptor +/// +/// The kernel will attempt to write the bytes in `buf` to the file descriptor `fd`, returning +/// either an `Err`, explained below, or `Ok(count)` where `count` is the number of bytes which +/// were written. +/// +/// # Errors +/// +/// * `EAGAIN` - the file descriptor was opened with `O_NONBLOCK` and writing would block +/// * `EBADF` - the file descriptor is not valid or is not open for writing +/// * `EFAULT` - `buf` does not point to the process's addressible memory +/// * `EIO` - an I/O error occurred +/// * `ENOSPC` - the device containing the file descriptor has no room for data +/// * `EPIPE` - the file descriptor refers to a pipe or socket whose reading end is closed +pub fn write(fd: usize, buf: &[u8]) -> Result<usize> { + unsafe { syscall3(SYS_WRITE, fd, buf.as_ptr() as usize, buf.len()) } +} + +/// Yield the process's time slice to the kernel +/// +/// This function will return Ok(0) on success +pub fn sched_yield() -> Result<usize> { + unsafe { syscall0(SYS_YIELD) } +} diff --git a/vendor/redox_syscall/src/daemon.rs b/vendor/redox_syscall/src/daemon.rs new file mode 100644 index 000000000..6433bcd7d --- /dev/null +++ b/vendor/redox_syscall/src/daemon.rs @@ -0,0 +1,62 @@ +use core::convert::Infallible; + +use super::{ + clone, + CloneFlags, + close, + EIO, + Error, + exit, + pipe2, + read, + Result, + write, +}; + +#[must_use = "Daemon::ready must be called"] +pub struct Daemon { + write_pipe: usize, +} + +impl Daemon { + pub fn new<F: FnOnce(Daemon) -> Infallible>(f: F) -> Result<Infallible> { + let mut pipes = [0; 2]; + pipe2(&mut pipes, 0)?; + + let [read_pipe, write_pipe] = pipes; + + if unsafe { clone(CloneFlags::empty())? } == 0 { + let _ = close(read_pipe); + + f(Daemon { + write_pipe, + }); + // TODO: Replace Infallible with the never type once it is stabilized. + unreachable!(); + } else { + let _ = close(write_pipe); + + let mut data = [0]; + let res = read(read_pipe, &mut data); + let _ = close(read_pipe); + + if res? == 1 { + exit(data[0] as usize)?; + unreachable!(); + } else { + Err(Error::new(EIO)) + } + } + } + + pub fn ready(self) -> Result<()> { + let res = write(self.write_pipe, &[0]); + let _ = close(self.write_pipe); + + if res? == 1 { + Ok(()) + } else { + Err(Error::new(EIO)) + } + } +} diff --git a/vendor/redox_syscall/src/data.rs b/vendor/redox_syscall/src/data.rs new file mode 100644 index 000000000..45d2dd862 --- /dev/null +++ b/vendor/redox_syscall/src/data.rs @@ -0,0 +1,297 @@ +use core::ops::{Deref, DerefMut}; +use core::{mem, slice}; +use crate::flag::{EventFlags, MapFlags, PtraceFlags, SigActionFlags}; + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct Event { + pub id: usize, + pub flags: EventFlags, + pub data: usize +} + +impl Deref for Event { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const Event as *const u8, mem::size_of::<Event>()) + } + } +} + +impl DerefMut for Event { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut Event as *mut u8, mem::size_of::<Event>()) + } + } +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct ITimerSpec { + pub it_interval: TimeSpec, + pub it_value: TimeSpec, +} + +impl Deref for ITimerSpec { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const ITimerSpec as *const u8, + mem::size_of::<ITimerSpec>()) + } + } +} + +impl DerefMut for ITimerSpec { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut ITimerSpec as *mut u8, + mem::size_of::<ITimerSpec>()) + } + } +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct OldMap { + pub offset: usize, + pub size: usize, + pub flags: MapFlags, +} + +impl Deref for OldMap { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const OldMap as *const u8, mem::size_of::<OldMap>()) + } + } +} + +impl DerefMut for OldMap { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut OldMap as *mut u8, mem::size_of::<OldMap>()) + } + } +} +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct Map { + /// The offset inside the file that is being mapped. + pub offset: usize, + + /// The size of the memory map. + pub size: usize, + + /// Contains both prot and map flags. + pub flags: MapFlags, + + /// Functions as a hint to where in the virtual address space of the running process, to place + /// the memory map. If [`MapFlags::MAP_FIXED`] is set, then this address must be the address to + /// map to. + pub address: usize, +} + +impl Deref for Map { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const Map as *const u8, mem::size_of::<Map>()) + } + } +} + +impl DerefMut for Map { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut Map as *mut u8, mem::size_of::<Map>()) + } + } +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct Packet { + pub id: u64, + pub pid: usize, + pub uid: u32, + pub gid: u32, + pub a: usize, + pub b: usize, + pub c: usize, + pub d: usize +} + +impl Deref for Packet { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const Packet as *const u8, mem::size_of::<Packet>()) + } + } +} + +impl DerefMut for Packet { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut Packet as *mut u8, mem::size_of::<Packet>()) + } + } +} + +#[derive(Copy, Clone, Debug, Default, PartialEq)] +#[repr(C)] +pub struct SigAction { + pub sa_handler: Option<extern "C" fn(usize)>, + pub sa_mask: [u64; 2], + pub sa_flags: SigActionFlags, +} + +#[allow(dead_code)] +unsafe fn _assert_size_of_function_is_sane() { + // Transmuting will complain *at compile time* if sizes differ. + // Rust forbids a fn-pointer from being 0 so to allow SIG_DFL to + // exist, we use Option<extern "C" fn(usize)> which will mean 0 + // becomes None + let _ = mem::transmute::<Option<extern "C" fn(usize)>, usize>(None); +} + +#[derive(Copy, Clone, Debug, Default, PartialEq)] +#[repr(C)] +pub struct Stat { + pub st_dev: u64, + pub st_ino: u64, + pub st_mode: u16, + pub st_nlink: u32, + pub st_uid: u32, + pub st_gid: u32, + pub st_size: u64, + pub st_blksize: u32, + pub st_blocks: u64, + pub st_mtime: u64, + pub st_mtime_nsec: u32, + pub st_atime: u64, + pub st_atime_nsec: u32, + pub st_ctime: u64, + pub st_ctime_nsec: u32, +} + +impl Deref for Stat { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const Stat as *const u8, + mem::size_of::<Stat>()) + } + } +} + +impl DerefMut for Stat { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut Stat as *mut u8, + mem::size_of::<Stat>()) + } + } +} + +#[derive(Copy, Clone, Debug, Default, PartialEq)] +#[repr(C)] +pub struct StatVfs { + pub f_bsize: u32, + pub f_blocks: u64, + pub f_bfree: u64, + pub f_bavail: u64, +} + +impl Deref for StatVfs { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const StatVfs as *const u8, + mem::size_of::<StatVfs>()) + } + } +} + +impl DerefMut for StatVfs { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut StatVfs as *mut u8, + mem::size_of::<StatVfs>()) + } + } +} + +#[derive(Copy, Clone, Debug, Default, PartialEq)] +#[repr(C)] +pub struct TimeSpec { + pub tv_sec: i64, + pub tv_nsec: i32, +} + +impl Deref for TimeSpec { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const TimeSpec as *const u8, + mem::size_of::<TimeSpec>()) + } + } +} + +impl DerefMut for TimeSpec { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut TimeSpec as *mut u8, + mem::size_of::<TimeSpec>()) + } + } +} + +#[derive(Clone, Copy, Debug, Default)] +#[repr(C)] +pub struct PtraceEvent { + pub cause: PtraceFlags, + pub a: usize, + pub b: usize, + pub c: usize, + pub d: usize, + pub e: usize, + pub f: usize +} + +impl Deref for PtraceEvent { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const PtraceEvent as *const u8, mem::size_of::<PtraceEvent>()) + } + } +} + +impl DerefMut for PtraceEvent { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut PtraceEvent as *mut u8, mem::size_of::<PtraceEvent>()) + } + } +} + +#[macro_export] +macro_rules! ptrace_event { + ($cause:expr $(, $a:expr $(, $b:expr $(, $c:expr)?)?)?) => { + $crate::data::PtraceEvent { + cause: $cause, + $(a: $a, + $(b: $b, + $(c: $c,)? + )? + )? + ..Default::default() + } + } +} diff --git a/vendor/redox_syscall/src/error.rs b/vendor/redox_syscall/src/error.rs new file mode 100644 index 000000000..9a4b0b5ad --- /dev/null +++ b/vendor/redox_syscall/src/error.rs @@ -0,0 +1,311 @@ +use core::{fmt, result}; + +#[derive(Eq, PartialEq)] +pub struct Error { + pub errno: i32, +} + +pub type Result<T, E = Error> = result::Result<T, E>; + +impl Error { + pub fn new(errno: i32) -> Error { + Error { errno: errno } + } + + pub fn mux(result: Result<usize>) -> usize { + match result { + Ok(value) => value, + Err(error) => -error.errno as usize, + } + } + + pub fn demux(value: usize) -> Result<usize> { + let errno = -(value as i32); + if errno >= 1 && errno < STR_ERROR.len() as i32 { + Err(Error::new(errno)) + } else { + Ok(value) + } + } + + pub fn text(&self) -> &'static str { + STR_ERROR.get(self.errno as usize).map(|&x| x).unwrap_or("Unknown Error") + } +} + +impl fmt::Debug for Error { + fn fmt(&self, f: &mut fmt::Formatter) -> result::Result<(), fmt::Error> { + f.write_str(self.text()) + } +} + +impl fmt::Display for Error { + fn fmt(&self, f: &mut fmt::Formatter) -> result::Result<(), fmt::Error> { + f.write_str(self.text()) + } +} + +pub const EPERM: i32 = 1; /* Operation not permitted */ +pub const ENOENT: i32 = 2; /* No such file or directory */ +pub const ESRCH: i32 = 3; /* No such process */ +pub const EINTR: i32 = 4; /* Interrupted system call */ +pub const EIO: i32 = 5; /* I/O error */ +pub const ENXIO: i32 = 6; /* No such device or address */ +pub const E2BIG: i32 = 7; /* Argument list too long */ +pub const ENOEXEC: i32 = 8; /* Exec format error */ +pub const EBADF: i32 = 9; /* Bad file number */ +pub const ECHILD: i32 = 10; /* No child processes */ +pub const EAGAIN: i32 = 11; /* Try again */ +pub const ENOMEM: i32 = 12; /* Out of memory */ +pub const EACCES: i32 = 13; /* Permission denied */ +pub const EFAULT: i32 = 14; /* Bad address */ +pub const ENOTBLK: i32 = 15; /* Block device required */ +pub const EBUSY: i32 = 16; /* Device or resource busy */ +pub const EEXIST: i32 = 17; /* File exists */ +pub const EXDEV: i32 = 18; /* Cross-device link */ +pub const ENODEV: i32 = 19; /* No such device */ +pub const ENOTDIR: i32 = 20; /* Not a directory */ +pub const EISDIR: i32 = 21; /* Is a directory */ +pub const EINVAL: i32 = 22; /* Invalid argument */ +pub const ENFILE: i32 = 23; /* File table overflow */ +pub const EMFILE: i32 = 24; /* Too many open files */ +pub const ENOTTY: i32 = 25; /* Not a typewriter */ +pub const ETXTBSY: i32 = 26; /* Text file busy */ +pub const EFBIG: i32 = 27; /* File too large */ +pub const ENOSPC: i32 = 28; /* No space left on device */ +pub const ESPIPE: i32 = 29; /* Illegal seek */ +pub const EROFS: i32 = 30; /* Read-only file system */ +pub const EMLINK: i32 = 31; /* Too many links */ +pub const EPIPE: i32 = 32; /* Broken pipe */ +pub const EDOM: i32 = 33; /* Math argument out of domain of func */ +pub const ERANGE: i32 = 34; /* Math result not representable */ +pub const EDEADLK: i32 = 35; /* Resource deadlock would occur */ +pub const ENAMETOOLONG: i32 = 36; /* File name too long */ +pub const ENOLCK: i32 = 37; /* No record locks available */ +pub const ENOSYS: i32 = 38; /* Function not implemented */ +pub const ENOTEMPTY: i32 = 39; /* Directory not empty */ +pub const ELOOP: i32 = 40; /* Too many symbolic links encountered */ +pub const EWOULDBLOCK: i32 = 41; /* Operation would block */ +pub const ENOMSG: i32 = 42; /* No message of desired type */ +pub const EIDRM: i32 = 43; /* Identifier removed */ +pub const ECHRNG: i32 = 44; /* Channel number out of range */ +pub const EL2NSYNC: i32 = 45; /* Level 2 not synchronized */ +pub const EL3HLT: i32 = 46; /* Level 3 halted */ +pub const EL3RST: i32 = 47; /* Level 3 reset */ +pub const ELNRNG: i32 = 48; /* Link number out of range */ +pub const EUNATCH: i32 = 49; /* Protocol driver not attached */ +pub const ENOCSI: i32 = 50; /* No CSI structure available */ +pub const EL2HLT: i32 = 51; /* Level 2 halted */ +pub const EBADE: i32 = 52; /* Invalid exchange */ +pub const EBADR: i32 = 53; /* Invalid request descriptor */ +pub const EXFULL: i32 = 54; /* Exchange full */ +pub const ENOANO: i32 = 55; /* No anode */ +pub const EBADRQC: i32 = 56; /* Invalid request code */ +pub const EBADSLT: i32 = 57; /* Invalid slot */ +pub const EDEADLOCK: i32 = 58; /* Resource deadlock would occur */ +pub const EBFONT: i32 = 59; /* Bad font file format */ +pub const ENOSTR: i32 = 60; /* Device not a stream */ +pub const ENODATA: i32 = 61; /* No data available */ +pub const ETIME: i32 = 62; /* Timer expired */ +pub const ENOSR: i32 = 63; /* Out of streams resources */ +pub const ENONET: i32 = 64; /* Machine is not on the network */ +pub const ENOPKG: i32 = 65; /* Package not installed */ +pub const EREMOTE: i32 = 66; /* Object is remote */ +pub const ENOLINK: i32 = 67; /* Link has been severed */ +pub const EADV: i32 = 68; /* Advertise error */ +pub const ESRMNT: i32 = 69; /* Srmount error */ +pub const ECOMM: i32 = 70; /* Communication error on send */ +pub const EPROTO: i32 = 71; /* Protocol error */ +pub const EMULTIHOP: i32 = 72; /* Multihop attempted */ +pub const EDOTDOT: i32 = 73; /* RFS specific error */ +pub const EBADMSG: i32 = 74; /* Not a data message */ +pub const EOVERFLOW: i32 = 75; /* Value too large for defined data type */ +pub const ENOTUNIQ: i32 = 76; /* Name not unique on network */ +pub const EBADFD: i32 = 77; /* File descriptor in bad state */ +pub const EREMCHG: i32 = 78; /* Remote address changed */ +pub const ELIBACC: i32 = 79; /* Can not access a needed shared library */ +pub const ELIBBAD: i32 = 80; /* Accessing a corrupted shared library */ +pub const ELIBSCN: i32 = 81; /* .lib section in a.out corrupted */ +pub const ELIBMAX: i32 = 82; /* Attempting to link in too many shared libraries */ +pub const ELIBEXEC: i32 = 83; /* Cannot exec a shared library directly */ +pub const EILSEQ: i32 = 84; /* Illegal byte sequence */ +pub const ERESTART: i32 = 85; /* Interrupted system call should be restarted */ +pub const ESTRPIPE: i32 = 86; /* Streams pipe error */ +pub const EUSERS: i32 = 87; /* Too many users */ +pub const ENOTSOCK: i32 = 88; /* Socket operation on non-socket */ +pub const EDESTADDRREQ: i32 = 89; /* Destination address required */ +pub const EMSGSIZE: i32 = 90; /* Message too long */ +pub const EPROTOTYPE: i32 = 91; /* Protocol wrong type for socket */ +pub const ENOPROTOOPT: i32 = 92; /* Protocol not available */ +pub const EPROTONOSUPPORT: i32 = 93; /* Protocol not supported */ +pub const ESOCKTNOSUPPORT: i32 = 94; /* Socket type not supported */ +pub const EOPNOTSUPP: i32 = 95; /* Operation not supported on transport endpoint */ +pub const EPFNOSUPPORT: i32 = 96; /* Protocol family not supported */ +pub const EAFNOSUPPORT: i32 = 97; /* Address family not supported by protocol */ +pub const EADDRINUSE: i32 = 98; /* Address already in use */ +pub const EADDRNOTAVAIL: i32 = 99; /* Cannot assign requested address */ +pub const ENETDOWN: i32 = 100; /* Network is down */ +pub const ENETUNREACH: i32 = 101; /* Network is unreachable */ +pub const ENETRESET: i32 = 102; /* Network dropped connection because of reset */ +pub const ECONNABORTED: i32 = 103; /* Software caused connection abort */ +pub const ECONNRESET: i32 = 104; /* Connection reset by peer */ +pub const ENOBUFS: i32 = 105; /* No buffer space available */ +pub const EISCONN: i32 = 106; /* Transport endpoint is already connected */ +pub const ENOTCONN: i32 = 107; /* Transport endpoint is not connected */ +pub const ESHUTDOWN: i32 = 108; /* Cannot send after transport endpoint shutdown */ +pub const ETOOMANYREFS: i32 = 109; /* Too many references: cannot splice */ +pub const ETIMEDOUT: i32 = 110; /* Connection timed out */ +pub const ECONNREFUSED: i32 = 111; /* Connection refused */ +pub const EHOSTDOWN: i32 = 112; /* Host is down */ +pub const EHOSTUNREACH: i32 = 113; /* No route to host */ +pub const EALREADY: i32 = 114; /* Operation already in progress */ +pub const EINPROGRESS: i32 = 115; /* Operation now in progress */ +pub const ESTALE: i32 = 116; /* Stale NFS file handle */ +pub const EUCLEAN: i32 = 117; /* Structure needs cleaning */ +pub const ENOTNAM: i32 = 118; /* Not a XENIX named type file */ +pub const ENAVAIL: i32 = 119; /* No XENIX semaphores available */ +pub const EISNAM: i32 = 120; /* Is a named type file */ +pub const EREMOTEIO: i32 = 121; /* Remote I/O error */ +pub const EDQUOT: i32 = 122; /* Quota exceeded */ +pub const ENOMEDIUM: i32 = 123; /* No medium found */ +pub const EMEDIUMTYPE: i32 = 124; /* Wrong medium type */ +pub const ECANCELED: i32 = 125; /* Operation Canceled */ +pub const ENOKEY: i32 = 126; /* Required key not available */ +pub const EKEYEXPIRED: i32 = 127; /* Key has expired */ +pub const EKEYREVOKED: i32 = 128; /* Key has been revoked */ +pub const EKEYREJECTED: i32 = 129; /* Key was rejected by service */ +pub const EOWNERDEAD: i32 = 130; /* Owner died */ +pub const ENOTRECOVERABLE: i32 = 131; /* State not recoverable */ + +pub static STR_ERROR: [&'static str; 132] = ["Success", + "Operation not permitted", + "No such file or directory", + "No such process", + "Interrupted system call", + "I/O error", + "No such device or address", + "Argument list too long", + "Exec format error", + "Bad file number", + "No child processes", + "Try again", + "Out of memory", + "Permission denied", + "Bad address", + "Block device required", + "Device or resource busy", + "File exists", + "Cross-device link", + "No such device", + "Not a directory", + "Is a directory", + "Invalid argument", + "File table overflow", + "Too many open files", + "Not a typewriter", + "Text file busy", + "File too large", + "No space left on device", + "Illegal seek", + "Read-only file system", + "Too many links", + "Broken pipe", + "Math argument out of domain of func", + "Math result not representable", + "Resource deadlock would occur", + "File name too long", + "No record locks available", + "Function not implemented", + "Directory not empty", + "Too many symbolic links encountered", + "Operation would block", + "No message of desired type", + "Identifier removed", + "Channel number out of range", + "Level 2 not synchronized", + "Level 3 halted", + "Level 3 reset", + "Link number out of range", + "Protocol driver not attached", + "No CSI structure available", + "Level 2 halted", + "Invalid exchange", + "Invalid request descriptor", + "Exchange full", + "No anode", + "Invalid request code", + "Invalid slot", + "Resource deadlock would occur", + "Bad font file format", + "Device not a stream", + "No data available", + "Timer expired", + "Out of streams resources", + "Machine is not on the network", + "Package not installed", + "Object is remote", + "Link has been severed", + "Advertise error", + "Srmount error", + "Communication error on send", + "Protocol error", + "Multihop attempted", + "RFS specific error", + "Not a data message", + "Value too large for defined data type", + "Name not unique on network", + "File descriptor in bad state", + "Remote address changed", + "Can not access a needed shared library", + "Accessing a corrupted shared library", + ".lib section in a.out corrupted", + "Attempting to link in too many shared libraries", + "Cannot exec a shared library directly", + "Illegal byte sequence", + "Interrupted system call should be restarted", + "Streams pipe error", + "Too many users", + "Socket operation on non-socket", + "Destination address required", + "Message too long", + "Protocol wrong type for socket", + "Protocol not available", + "Protocol not supported", + "Socket type not supported", + "Operation not supported on transport endpoint", + "Protocol family not supported", + "Address family not supported by protocol", + "Address already in use", + "Cannot assign requested address", + "Network is down", + "Network is unreachable", + "Network dropped connection because of reset", + "Software caused connection abort", + "Connection reset by peer", + "No buffer space available", + "Transport endpoint is already connected", + "Transport endpoint is not connected", + "Cannot send after transport endpoint shutdown", + "Too many references: cannot splice", + "Connection timed out", + "Connection refused", + "Host is down", + "No route to host", + "Operation already in progress", + "Operation now in progress", + "Stale NFS file handle", + "Structure needs cleaning", + "Not a XENIX named type file", + "No XENIX semaphores available", + "Is a named type file", + "Remote I/O error", + "Quota exceeded", + "No medium found", + "Wrong medium type", + "Operation Canceled", + "Required key not available", + "Key has expired", + "Key has been revoked", + "Key was rejected by service", + "Owner died", + "State not recoverable"]; diff --git a/vendor/redox_syscall/src/flag.rs b/vendor/redox_syscall/src/flag.rs new file mode 100644 index 000000000..9788884af --- /dev/null +++ b/vendor/redox_syscall/src/flag.rs @@ -0,0 +1,348 @@ +use bitflags::bitflags as inner_bitflags; +use core::{mem, ops::Deref, slice}; + +macro_rules! bitflags { + ( + $(#[$outer:meta])* + pub struct $BitFlags:ident: $T:ty { + $( + $(#[$inner:ident $($args:tt)*])* + const $Flag:ident = $value:expr; + )+ + } + ) => { + // First, use the inner bitflags + inner_bitflags! { + #[derive(Default)] + $(#[$outer])* + pub struct $BitFlags: $T { + $( + $(#[$inner $($args)*])* + const $Flag = $value; + )+ + } + } + + // Secondly, re-export all inner constants + // (`pub use self::Struct::*` doesn't work) + $( + $(#[$inner $($args)*])* + pub const $Flag: $BitFlags = $BitFlags::$Flag; + )+ + } +} + +bitflags! { + pub struct CloneFlags: usize { + const CLONE_VM = 0x100; + const CLONE_FS = 0x200; + const CLONE_FILES = 0x400; + const CLONE_SIGHAND = 0x800; + const CLONE_VFORK = 0x4000; + const CLONE_THREAD = 0x10000; + const CLONE_STACK = 0x1000_0000; + } +} + +pub const CLOCK_REALTIME: usize = 1; +pub const CLOCK_MONOTONIC: usize = 4; + +bitflags! { + pub struct EventFlags: usize { + const EVENT_NONE = 0; + const EVENT_READ = 1; + const EVENT_WRITE = 2; + } +} + +pub const F_DUPFD: usize = 0; +pub const F_GETFD: usize = 1; +pub const F_SETFD: usize = 2; +pub const F_GETFL: usize = 3; +pub const F_SETFL: usize = 4; + +pub const FUTEX_WAIT: usize = 0; +pub const FUTEX_WAKE: usize = 1; +pub const FUTEX_REQUEUE: usize = 2; +pub const FUTEX_WAIT64: usize = 3; + +bitflags! { + pub struct MapFlags: usize { + const PROT_NONE = 0x0000_0000; + const PROT_EXEC = 0x0001_0000; + const PROT_WRITE = 0x0002_0000; + const PROT_READ = 0x0004_0000; + + const MAP_SHARED = 0x0001; + const MAP_PRIVATE = 0x0002; + + /// Only accepted for mmap2(2). + const MAP_FIXED = 0x0004; + const MAP_FIXED_NOREPLACE = 0x000C; + } +} + +pub const MODE_TYPE: u16 = 0xF000; +pub const MODE_DIR: u16 = 0x4000; +pub const MODE_FILE: u16 = 0x8000; +pub const MODE_SYMLINK: u16 = 0xA000; +pub const MODE_FIFO: u16 = 0x1000; +pub const MODE_CHR: u16 = 0x2000; + +pub const MODE_PERM: u16 = 0x0FFF; +pub const MODE_SETUID: u16 = 0o4000; +pub const MODE_SETGID: u16 = 0o2000; + +pub const O_RDONLY: usize = 0x0001_0000; +pub const O_WRONLY: usize = 0x0002_0000; +pub const O_RDWR: usize = 0x0003_0000; +pub const O_NONBLOCK: usize = 0x0004_0000; +pub const O_APPEND: usize = 0x0008_0000; +pub const O_SHLOCK: usize = 0x0010_0000; +pub const O_EXLOCK: usize = 0x0020_0000; +pub const O_ASYNC: usize = 0x0040_0000; +pub const O_FSYNC: usize = 0x0080_0000; +pub const O_CLOEXEC: usize = 0x0100_0000; +pub const O_CREAT: usize = 0x0200_0000; +pub const O_TRUNC: usize = 0x0400_0000; +pub const O_EXCL: usize = 0x0800_0000; +pub const O_DIRECTORY: usize = 0x1000_0000; +pub const O_STAT: usize = 0x2000_0000; +pub const O_SYMLINK: usize = 0x4000_0000; +pub const O_NOFOLLOW: usize = 0x8000_0000; +pub const O_ACCMODE: usize = O_RDONLY | O_WRONLY | O_RDWR; + +bitflags! { + pub struct PhysmapFlags: usize { + const PHYSMAP_WRITE = 0x0000_0001; + const PHYSMAP_WRITE_COMBINE = 0x0000_0002; + const PHYSMAP_NO_CACHE = 0x0000_0004; + } +} +bitflags! { + /// Extra flags for [`physalloc2`] or [`physalloc3`]. + /// + /// [`physalloc2`]: ../call/fn.physalloc2.html + /// [`physalloc3`]: ../call/fn.physalloc3.html + pub struct PhysallocFlags: usize { + /// Only allocate memory within the 32-bit physical memory space. This is necessary for + /// some devices may not support 64-bit memory. + const SPACE_32 = 0x0000_0001; + + /// The frame that will be allocated, is going to reside anywhere in 64-bit space. This + /// flag is redundant for the most part, except when overriding some other default. + const SPACE_64 = 0x0000_0002; + + /// Do a "partial allocation", which means that not all of the frames specified in the + /// frame count `size` actually have to be allocated. This means that if the allocator was + /// unable to find a physical memory range large enough, it can instead return whatever + /// range it decides is optimal. Thus, instead of letting one driver get an expensive + /// 128MiB physical memory range when the physical memory has become fragmented, and + /// failing, it can instead be given a more optimal range. If the device supports + /// scatter-gather lists, then the driver only has to allocate more ranges, and the device + /// will do vectored I/O. + /// + /// PARTIAL_ALLOC supports different allocation strategies, refer to + /// [`Optimal`], [`GreatestRange`]. + /// + /// [`Optimal`]: ./enum.PartialAllocStrategy.html + /// [`GreatestRange`]: ./enum.PartialAllocStrategy.html + const PARTIAL_ALLOC = 0x0000_0004; + } +} + +/// The bitmask of the partial allocation strategy. Currently four different strategies are +/// supported. If [`PARTIAL_ALLOC`] is not set, this bitmask is no longer reserved. +pub const PARTIAL_ALLOC_STRATEGY_MASK: usize = 0x0003_0000; + +#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] +#[repr(usize)] +pub enum PartialAllocStrategy { + /// The allocator decides itself the size of the memory range, based on e.g. free memory ranges + /// and other processes which require large physical memory chunks. + Optimal = 0x0001_0000, + + /// The allocator returns the absolute greatest range it can find. + GreatestRange = 0x0002_0000, + + /// The allocator returns the first range that fits the minimum count, without searching extra. + Greedy = 0x0003_0000, +} +impl Default for PartialAllocStrategy { + fn default() -> Self { + Self::Optimal + } +} + +impl PartialAllocStrategy { + pub fn from_raw(raw: usize) -> Option<Self> { + match raw { + 0x0001_0000 => Some(Self::Optimal), + 0x0002_0000 => Some(Self::GreatestRange), + 0x0003_0000 => Some(Self::Greedy), + _ => None, + } + } +} + +// The top 48 bits of PTRACE_* are reserved, for now + +bitflags! { + pub struct PtraceFlags: u64 { + /// Stop before a syscall is handled. Send PTRACE_FLAG_IGNORE to not + /// handle the syscall. + const PTRACE_STOP_PRE_SYSCALL = 0x0000_0000_0000_0001; + /// Stop after a syscall is handled. + const PTRACE_STOP_POST_SYSCALL = 0x0000_0000_0000_0002; + /// Stop after exactly one instruction. TODO: This may not handle + /// fexec/signal boundaries. Should it? + const PTRACE_STOP_SINGLESTEP = 0x0000_0000_0000_0004; + /// Stop before a signal is handled. Send PTRACE_FLAG_IGNORE to not + /// handle signal. + const PTRACE_STOP_SIGNAL = 0x0000_0000_0000_0008; + /// Stop on a software breakpoint, such as the int3 instruction for + /// x86_64. + const PTRACE_STOP_BREAKPOINT = 0x0000_0000_0000_0010; + /// Stop just before exiting for good. + const PTRACE_STOP_EXIT = 0x0000_0000_0000_0020; + + const PTRACE_STOP_MASK = 0x0000_0000_0000_00FF; + + + /// Sent when a child is cloned, giving you the opportunity to trace it. + /// If you don't catch this, the child is started as normal. + const PTRACE_EVENT_CLONE = 0x0000_0000_0000_0100; + + const PTRACE_EVENT_MASK = 0x0000_0000_0000_0F00; + + + /// Special meaning, depending on the event. Usually, when fired before + /// an action, it will skip performing that action. + const PTRACE_FLAG_IGNORE = 0x0000_0000_0000_1000; + + const PTRACE_FLAG_MASK = 0x0000_0000_0000_F000; + } +} +impl Deref for PtraceFlags { + type Target = [u8]; + fn deref(&self) -> &Self::Target { + // Same as to_ne_bytes but in-place + unsafe { + slice::from_raw_parts( + &self.bits as *const _ as *const u8, + mem::size_of::<u64>() + ) + } + } +} + +pub const SEEK_SET: usize = 0; +pub const SEEK_CUR: usize = 1; +pub const SEEK_END: usize = 2; + +pub const SIGHUP: usize = 1; +pub const SIGINT: usize = 2; +pub const SIGQUIT: usize = 3; +pub const SIGILL: usize = 4; +pub const SIGTRAP: usize = 5; +pub const SIGABRT: usize = 6; +pub const SIGBUS: usize = 7; +pub const SIGFPE: usize = 8; +pub const SIGKILL: usize = 9; +pub const SIGUSR1: usize = 10; +pub const SIGSEGV: usize = 11; +pub const SIGUSR2: usize = 12; +pub const SIGPIPE: usize = 13; +pub const SIGALRM: usize = 14; +pub const SIGTERM: usize = 15; +pub const SIGSTKFLT: usize= 16; +pub const SIGCHLD: usize = 17; +pub const SIGCONT: usize = 18; +pub const SIGSTOP: usize = 19; +pub const SIGTSTP: usize = 20; +pub const SIGTTIN: usize = 21; +pub const SIGTTOU: usize = 22; +pub const SIGURG: usize = 23; +pub const SIGXCPU: usize = 24; +pub const SIGXFSZ: usize = 25; +pub const SIGVTALRM: usize= 26; +pub const SIGPROF: usize = 27; +pub const SIGWINCH: usize = 28; +pub const SIGIO: usize = 29; +pub const SIGPWR: usize = 30; +pub const SIGSYS: usize = 31; + +pub const SIG_DFL: usize = 0; +pub const SIG_IGN: usize = 1; + +pub const SIG_BLOCK: usize = 0; +pub const SIG_UNBLOCK: usize = 1; +pub const SIG_SETMASK: usize = 2; + +bitflags! { + pub struct SigActionFlags: usize { + const SA_NOCLDSTOP = 0x00000001; + const SA_NOCLDWAIT = 0x00000002; + const SA_SIGINFO = 0x00000004; + const SA_RESTORER = 0x04000000; + const SA_ONSTACK = 0x08000000; + const SA_RESTART = 0x10000000; + const SA_NODEFER = 0x40000000; + const SA_RESETHAND = 0x80000000; + } +} + +// Auxiliery vector types +pub const AT_NULL: usize = 0; +pub const AT_PHDR: usize = 3; +pub const AT_PHENT: usize = 4; +pub const AT_PHNUM: usize = 5; +pub const AT_ENTRY: usize = 9; + +bitflags! { + pub struct WaitFlags: usize { + const WNOHANG = 0x01; + const WUNTRACED = 0x02; + const WCONTINUED = 0x08; + } +} + +/// True if status indicates the child is stopped. +pub fn wifstopped(status: usize) -> bool { + (status & 0xff) == 0x7f +} + +/// If wifstopped(status), the signal that stopped the child. +pub fn wstopsig(status: usize) -> usize { + (status >> 8) & 0xff +} + +/// True if status indicates the child continued after a stop. +pub fn wifcontinued(status: usize) -> bool { + status == 0xffff +} + +/// True if STATUS indicates termination by a signal. +pub fn wifsignaled(status: usize) -> bool { + ((status & 0x7f) + 1) as i8 >= 2 +} + +/// If wifsignaled(status), the terminating signal. +pub fn wtermsig(status: usize) -> usize { + status & 0x7f +} + +/// True if status indicates normal termination. +pub fn wifexited(status: usize) -> bool { + wtermsig(status) == 0 +} + +/// If wifexited(status), the exit status. +pub fn wexitstatus(status: usize) -> usize { + (status >> 8) & 0xff +} + +/// True if status indicates a core dump was created. +pub fn wcoredump(status: usize) -> bool { + (status & 0x80) != 0 +} diff --git a/vendor/redox_syscall/src/io/dma.rs b/vendor/redox_syscall/src/io/dma.rs new file mode 100644 index 000000000..b356c8abe --- /dev/null +++ b/vendor/redox_syscall/src/io/dma.rs @@ -0,0 +1,200 @@ +use core::mem::{self, MaybeUninit}; +use core::ops::{Deref, DerefMut}; +use core::{ptr, slice}; + +use crate::Result; +use crate::{PartialAllocStrategy, PhysallocFlags}; + +/// An RAII guard of a physical memory allocation. Currently all physically allocated memory are +/// page-aligned and take up at least 4k of space (on x86_64). +#[derive(Debug)] +pub struct PhysBox { + address: usize, + size: usize +} + +impl PhysBox { + /// Construct a PhysBox from an address and a size. + /// + /// # Safety + /// This function is unsafe because when dropping, Self has to a valid allocation. + pub unsafe fn from_raw_parts(address: usize, size: usize) -> Self { + Self { + address, + size, + } + } + + /// Retrieve the byte address in physical memory, of this allocation. + pub fn address(&self) -> usize { + self.address + } + + /// Retrieve the size in bytes of the alloc. + pub fn size(&self) -> usize { + self.size + } + + /// Allocate physical memory that must reside in 32-bit space. + pub fn new_in_32bit_space(size: usize) -> Result<Self> { + Self::new_with_flags(size, PhysallocFlags::SPACE_32) + } + + pub fn new_with_flags(size: usize, flags: PhysallocFlags) -> Result<Self> { + assert!(!flags.contains(PhysallocFlags::PARTIAL_ALLOC)); + + let address = unsafe { crate::physalloc2(size, flags.bits())? }; + Ok(Self { + address, + size, + }) + } + + /// "Partially" allocate physical memory, in the sense that the allocation may be smaller than + /// expected, but still with a minimum limit. This is particularly useful when the physical + /// memory space is fragmented, and a device supports scatter-gather I/O. In that case, the + /// driver can optimistically request e.g. 1 alloc of 1 MiB, with the minimum of 512 KiB. If + /// that first allocation only returns half the size, the driver can do another allocation + /// and then let the device use both buffers. + pub fn new_partial_allocation(size: usize, flags: PhysallocFlags, strategy: Option<PartialAllocStrategy>, mut min: usize) -> Result<Self> { + debug_assert!(!(flags.contains(PhysallocFlags::PARTIAL_ALLOC) && strategy.is_none())); + + let address = unsafe { crate::physalloc3(size, flags.bits() | strategy.map(|s| s as usize).unwrap_or(0), &mut min)? }; + Ok(Self { + address, + size: min, + }) + } + + pub fn new(size: usize) -> Result<Self> { + let address = unsafe { crate::physalloc(size)? }; + Ok(Self { + address, + size, + }) + } +} + +impl Drop for PhysBox { + fn drop(&mut self) { + let _ = unsafe { crate::physfree(self.address, self.size) }; + } +} + +pub struct Dma<T: ?Sized> { + phys: PhysBox, + virt: *mut T, +} + +impl<T> Dma<T> { + pub fn from_physbox_uninit(phys: PhysBox) -> Result<Dma<MaybeUninit<T>>> { + let virt = unsafe { crate::physmap(phys.address, phys.size, crate::PHYSMAP_WRITE)? } as *mut MaybeUninit<T>; + + Ok(Dma { + phys, + virt, + }) + } + pub fn from_physbox_zeroed(phys: PhysBox) -> Result<Dma<MaybeUninit<T>>> { + let this = Self::from_physbox_uninit(phys)?; + unsafe { ptr::write_bytes(this.virt as *mut MaybeUninit<u8>, 0, this.phys.size) } + Ok(this) + } + + pub fn from_physbox(phys: PhysBox, value: T) -> Result<Self> { + let this = Self::from_physbox_uninit(phys)?; + + Ok(unsafe { + ptr::write(this.virt, MaybeUninit::new(value)); + this.assume_init() + }) + } + + pub fn new(value: T) -> Result<Self> { + let phys = PhysBox::new(mem::size_of::<T>())?; + Self::from_physbox(phys, value) + } + pub fn zeroed() -> Result<Dma<MaybeUninit<T>>> { + let phys = PhysBox::new(mem::size_of::<T>())?; + Self::from_physbox_zeroed(phys) + } +} + +impl<T> Dma<MaybeUninit<T>> { + pub unsafe fn assume_init(self) -> Dma<T> { + let &Dma { phys: PhysBox { address, size }, virt } = &self; + mem::forget(self); + + Dma { + phys: PhysBox { address, size }, + virt: virt as *mut T, + } + } +} +impl<T: ?Sized> Dma<T> { + pub fn physical(&self) -> usize { + self.phys.address() + } + pub fn size(&self) -> usize { + self.phys.size() + } + pub fn phys(&self) -> &PhysBox { + &self.phys + } +} + +impl<T> Dma<[T]> { + pub fn from_physbox_uninit_unsized(phys: PhysBox, len: usize) -> Result<Dma<[MaybeUninit<T>]>> { + let max_len = phys.size() / mem::size_of::<T>(); + assert!(len <= max_len); + + Ok(Dma { + virt: unsafe { slice::from_raw_parts_mut(crate::physmap(phys.address, phys.size, crate::PHYSMAP_WRITE)? as *mut MaybeUninit<T>, len) } as *mut [MaybeUninit<T>], + phys, + }) + } + pub fn from_physbox_zeroed_unsized(phys: PhysBox, len: usize) -> Result<Dma<[MaybeUninit<T>]>> { + let this = Self::from_physbox_uninit_unsized(phys, len)?; + unsafe { ptr::write_bytes(this.virt as *mut MaybeUninit<u8>, 0, this.phys.size()) } + Ok(this) + } + /// Creates a new DMA buffer with a size only known at runtime. + /// ## Safety + /// * `T` must be properly aligned. + /// * `T` must be valid as zeroed (i.e. no NonNull pointers). + pub unsafe fn zeroed_unsized(count: usize) -> Result<Self> { + let phys = PhysBox::new(mem::size_of::<T>() * count)?; + Ok(Self::from_physbox_zeroed_unsized(phys, count)?.assume_init()) + } +} +impl<T> Dma<[MaybeUninit<T>]> { + pub unsafe fn assume_init(self) -> Dma<[T]> { + let &Dma { phys: PhysBox { address, size }, virt } = &self; + mem::forget(self); + + Dma { + phys: PhysBox { address, size }, + virt: virt as *mut [T], + } + } +} + +impl<T: ?Sized> Deref for Dma<T> { + type Target = T; + fn deref(&self) -> &T { + unsafe { &*self.virt } + } +} + +impl<T: ?Sized> DerefMut for Dma<T> { + fn deref_mut(&mut self) -> &mut T { + unsafe { &mut *self.virt } + } +} + +impl<T: ?Sized> Drop for Dma<T> { + fn drop(&mut self) { + unsafe { ptr::drop_in_place(self.virt) } + let _ = unsafe { crate::physunmap(self.virt as *mut u8 as usize) }; + } +} diff --git a/vendor/redox_syscall/src/io/io.rs b/vendor/redox_syscall/src/io/io.rs new file mode 100644 index 000000000..2c4acd388 --- /dev/null +++ b/vendor/redox_syscall/src/io/io.rs @@ -0,0 +1,71 @@ +use core::cmp::PartialEq; +use core::ops::{BitAnd, BitOr, Not}; + +pub trait Io { + type Value: Copy + PartialEq + BitAnd<Output = Self::Value> + BitOr<Output = Self::Value> + Not<Output = Self::Value>; + + fn read(&self) -> Self::Value; + fn write(&mut self, value: Self::Value); + + #[inline(always)] + fn readf(&self, flags: Self::Value) -> bool { + (self.read() & flags) as Self::Value == flags + } + + #[inline(always)] + fn writef(&mut self, flags: Self::Value, value: bool) { + let tmp: Self::Value = match value { + true => self.read() | flags, + false => self.read() & !flags, + }; + self.write(tmp); + } +} + +pub struct ReadOnly<I> { + inner: I +} + +impl<I> ReadOnly<I> { + pub const fn new(inner: I) -> ReadOnly<I> { + ReadOnly { + inner: inner + } + } +} + +impl<I: Io> ReadOnly<I> { + #[inline(always)] + pub fn read(&self) -> I::Value { + self.inner.read() + } + + #[inline(always)] + pub fn readf(&self, flags: I::Value) -> bool { + self.inner.readf(flags) + } +} + +pub struct WriteOnly<I> { + inner: I +} + +impl<I> WriteOnly<I> { + pub const fn new(inner: I) -> WriteOnly<I> { + WriteOnly { + inner: inner + } + } +} + +impl<I: Io> WriteOnly<I> { + #[inline(always)] + pub fn write(&mut self, value: I::Value) { + self.inner.write(value) + } + + #[inline(always)] + pub fn writef(&mut self, flags: I::Value, value: bool) { + self.inner.writef(flags, value) + } +} diff --git a/vendor/redox_syscall/src/io/mmio.rs b/vendor/redox_syscall/src/io/mmio.rs new file mode 100644 index 000000000..3966ab454 --- /dev/null +++ b/vendor/redox_syscall/src/io/mmio.rs @@ -0,0 +1,45 @@ +use core::ptr::{read_volatile, write_volatile, addr_of, addr_of_mut}; +use core::mem::MaybeUninit; +use core::ops::{BitAnd, BitOr, Not}; + +use super::io::Io; + +#[repr(packed)] +pub struct Mmio<T> { + value: MaybeUninit<T>, +} + +impl<T> Mmio<T> { + /// Create a new Mmio without initializing + #[deprecated = "unsound because it's possible to read even though it's uninitialized"] + pub fn new() -> Self { + unsafe { Self::uninit() } + } + pub unsafe fn zeroed() -> Self { + Self { + value: MaybeUninit::zeroed(), + } + } + pub unsafe fn uninit() -> Self { + Self { + value: MaybeUninit::uninit(), + } + } + pub const fn from(value: T) -> Self { + Self { + value: MaybeUninit::new(value), + } + } +} + +impl<T> Io for Mmio<T> where T: Copy + PartialEq + BitAnd<Output = T> + BitOr<Output = T> + Not<Output = T> { + type Value = T; + + fn read(&self) -> T { + unsafe { read_volatile(addr_of!(self.value).cast::<T>()) } + } + + fn write(&mut self, value: T) { + unsafe { write_volatile(addr_of_mut!(self.value).cast::<T>(), value) }; + } +} diff --git a/vendor/redox_syscall/src/io/mod.rs b/vendor/redox_syscall/src/io/mod.rs new file mode 100644 index 000000000..a9cd4c86d --- /dev/null +++ b/vendor/redox_syscall/src/io/mod.rs @@ -0,0 +1,15 @@ +//! I/O functions + +pub use self::dma::*; +pub use self::io::*; +pub use self::mmio::*; + +#[cfg(target_arch = "x86_64")] +pub use self::pio::*; + +mod dma; +mod io; +mod mmio; + +#[cfg(target_arch = "x86_64")] +mod pio; diff --git a/vendor/redox_syscall/src/io/pio.rs b/vendor/redox_syscall/src/io/pio.rs new file mode 100644 index 000000000..8b837bcdf --- /dev/null +++ b/vendor/redox_syscall/src/io/pio.rs @@ -0,0 +1,90 @@ +use core::arch::asm; +use core::marker::PhantomData; + +use super::io::Io; + +/// Generic PIO +#[derive(Copy, Clone)] +pub struct Pio<T> { + port: u16, + value: PhantomData<T>, +} + +impl<T> Pio<T> { + /// Create a PIO from a given port + pub const fn new(port: u16) -> Self { + Pio::<T> { + port, + value: PhantomData, + } + } +} + +/// Read/Write for byte PIO +impl Io for Pio<u8> { + type Value = u8; + + /// Read + #[inline(always)] + fn read(&self) -> u8 { + let value: u8; + unsafe { + asm!("in al, dx", in("dx") self.port, out("al") value, options(nostack, nomem, preserves_flags)); + } + value + } + + /// Write + #[inline(always)] + fn write(&mut self, value: u8) { + unsafe { + asm!("out dx, al", in("dx") self.port, in("al") value, options(nostack, nomem, preserves_flags)); + } + } +} + +/// Read/Write for word PIO +impl Io for Pio<u16> { + type Value = u16; + + /// Read + #[inline(always)] + fn read(&self) -> u16 { + let value: u16; + unsafe { + asm!("in ax, dx", in("dx") self.port, out("ax") value, options(nostack, nomem, preserves_flags)); + } + value + } + + /// Write + #[inline(always)] + fn write(&mut self, value: u16) { + unsafe { + asm!("out dx, ax", in("dx") self.port, in("ax") value, options(nostack, nomem, preserves_flags)); + } + } +} + +/// Read/Write for doubleword PIO +impl Io for Pio<u32> { + type Value = u32; + + /// Read + #[inline(always)] + fn read(&self) -> u32 { + let value: u32; + unsafe { + asm!("in eax, dx", in("dx") self.port, out("eax") value, options(nostack, nomem, preserves_flags)); + } + value + } + + /// Write + #[inline(always)] + fn write(&mut self, value: u32) { + unsafe { + asm!("out dx, eax", in("dx") self.port, in("eax") value, options(nostack, nomem, preserves_flags)); + } + } +} diff --git a/vendor/redox_syscall/src/lib.rs b/vendor/redox_syscall/src/lib.rs new file mode 100644 index 000000000..050ee8160 --- /dev/null +++ b/vendor/redox_syscall/src/lib.rs @@ -0,0 +1,65 @@ +#![cfg_attr(not(test), no_std)] + +#[cfg(test)] +extern crate core; + +pub use self::arch::*; +pub use self::call::*; +pub use self::daemon::*; +pub use self::data::*; +pub use self::error::*; +pub use self::flag::*; +pub use self::io::*; +pub use self::number::*; +pub use self::scheme::*; + +#[cfg(all(any(target_os = "none", target_os = "redox"), target_arch = "arm"))] +#[path="arch/nonredox.rs"] +mod arch; + +#[cfg(all(any(target_os = "none", target_os = "redox"), target_arch = "aarch64"))] +#[path="arch/aarch64.rs"] +mod arch; + +#[cfg(all(any(target_os = "none", target_os = "redox"), target_arch = "riscv64"))] +#[path="arch/riscv64.rs"] +mod arch; + +#[cfg(all(any(target_os = "none", target_os = "redox"), target_arch = "x86"))] +#[path="arch/nonredox.rs"] +mod arch; + +#[cfg(all(any(target_os = "none", target_os = "redox"), target_arch = "x86_64"))] +#[path="arch/x86_64.rs"] +mod arch; + +#[cfg(not(any(target_os = "none", target_os = "redox")))] +#[path="arch/nonredox.rs"] +mod arch; + +/// Function definitions +pub mod call; + +/// Complex structures that are used for some system calls +pub mod data; + +/// Wrapper to make daemons easier to write +pub mod daemon; + +/// All errors that can be generated by a system call +pub mod error; + +/// Flags used as an argument to many system calls +pub mod flag; + +/// Functions for low level hardware control +pub mod io; + +/// Call numbers used by each system call +pub mod number; + +/// A trait useful for scheme handlers +pub mod scheme; + +#[cfg(test)] +mod tests; diff --git a/vendor/redox_syscall/src/number.rs b/vendor/redox_syscall/src/number.rs new file mode 100644 index 000000000..1f037eb19 --- /dev/null +++ b/vendor/redox_syscall/src/number.rs @@ -0,0 +1,78 @@ +pub const SYS_CLASS: usize = 0xF000_0000; +pub const SYS_CLASS_PATH: usize=0x1000_0000; +pub const SYS_CLASS_FILE: usize=0x2000_0000; + +pub const SYS_ARG: usize = 0x0F00_0000; +pub const SYS_ARG_SLICE: usize =0x0100_0000; +pub const SYS_ARG_MSLICE: usize=0x0200_0000; +pub const SYS_ARG_PATH: usize = 0x0300_0000; + +pub const SYS_RET: usize = 0x00F0_0000; +pub const SYS_RET_FILE: usize = 0x0010_0000; + +pub const SYS_LINK: usize = SYS_CLASS_PATH | SYS_ARG_PATH | 9; +pub const SYS_OPEN: usize = SYS_CLASS_PATH | SYS_RET_FILE | 5; +pub const SYS_CHMOD: usize = SYS_CLASS_PATH | 15; +pub const SYS_RMDIR: usize = SYS_CLASS_PATH | 84; +pub const SYS_UNLINK: usize = SYS_CLASS_PATH | 10; + +pub const SYS_CLOSE: usize = SYS_CLASS_FILE | 6; +pub const SYS_DUP: usize = SYS_CLASS_FILE | SYS_RET_FILE | 41; +pub const SYS_DUP2: usize = SYS_CLASS_FILE | SYS_RET_FILE | 63; +pub const SYS_READ: usize = SYS_CLASS_FILE | SYS_ARG_MSLICE | 3; +pub const SYS_WRITE: usize = SYS_CLASS_FILE | SYS_ARG_SLICE | 4; +pub const SYS_LSEEK: usize = SYS_CLASS_FILE | 19; +pub const SYS_FCHMOD: usize = SYS_CLASS_FILE | 94; +pub const SYS_FCHOWN: usize = SYS_CLASS_FILE | 207; +pub const SYS_FCNTL: usize = SYS_CLASS_FILE | 55; +pub const SYS_FEVENT: usize = SYS_CLASS_FILE | 927; +pub const SYS_FEXEC: usize = SYS_CLASS_FILE | 11; +pub const SYS_FMAP_OLD: usize = SYS_CLASS_FILE | SYS_ARG_SLICE | 90; +pub const SYS_FMAP: usize = SYS_CLASS_FILE | SYS_ARG_SLICE | 900; +pub const SYS_FUNMAP_OLD: usize = SYS_CLASS_FILE | 91; +pub const SYS_FUNMAP: usize = SYS_CLASS_FILE | 92; +pub const SYS_FPATH: usize = SYS_CLASS_FILE | SYS_ARG_MSLICE | 928; +pub const SYS_FRENAME: usize = SYS_CLASS_FILE | SYS_ARG_PATH | 38; +pub const SYS_FSTAT: usize = SYS_CLASS_FILE | SYS_ARG_MSLICE | 28; +pub const SYS_FSTATVFS: usize = SYS_CLASS_FILE | SYS_ARG_MSLICE | 100; +pub const SYS_FSYNC: usize = SYS_CLASS_FILE | 118; +pub const SYS_FTRUNCATE: usize = SYS_CLASS_FILE | 93; +pub const SYS_FUTIMENS: usize = SYS_CLASS_FILE | SYS_ARG_SLICE | 320; + +pub const SYS_CHDIR: usize = 12; +pub const SYS_CLOCK_GETTIME: usize = 265; +pub const SYS_CLONE: usize = 120; +pub const SYS_EXIT: usize = 1; +pub const SYS_FUTEX: usize = 240; +pub const SYS_GETCWD: usize = 183; +pub const SYS_GETEGID: usize = 202; +pub const SYS_GETENS: usize = 951; +pub const SYS_GETEUID: usize = 201; +pub const SYS_GETGID: usize = 200; +pub const SYS_GETNS: usize = 950; +pub const SYS_GETPID: usize = 20; +pub const SYS_GETPGID: usize = 132; +pub const SYS_GETPPID: usize = 64; +pub const SYS_GETUID: usize = 199; +pub const SYS_IOPL: usize = 110; +pub const SYS_KILL: usize = 37; +pub const SYS_MPROTECT: usize = 125; +pub const SYS_MKNS: usize = 984; +pub const SYS_NANOSLEEP: usize =162; +pub const SYS_PHYSALLOC: usize =945; +pub const SYS_PHYSALLOC3: usize=9453; +pub const SYS_PHYSFREE: usize = 946; +pub const SYS_PHYSMAP: usize = 947; +pub const SYS_PHYSUNMAP: usize =948; +pub const SYS_VIRTTOPHYS: usize=949; +pub const SYS_PIPE2: usize = 331; +pub const SYS_SETPGID: usize = 57; +pub const SYS_SETREGID: usize = 204; +pub const SYS_SETRENS: usize = 952; +pub const SYS_SETREUID: usize = 203; +pub const SYS_SIGACTION: usize =67; +pub const SYS_SIGPROCMASK:usize=126; +pub const SYS_SIGRETURN: usize =119; +pub const SYS_UMASK: usize = 60; +pub const SYS_WAITPID: usize = 7; +pub const SYS_YIELD: usize = 158; diff --git a/vendor/redox_syscall/src/scheme/generate.sh b/vendor/redox_syscall/src/scheme/generate.sh new file mode 100755 index 000000000..a877cda92 --- /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 000000000..f65d1e2c0 --- /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 000000000..249d28c6e --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme.rs @@ -0,0 +1,211 @@ +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_CHMOD => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.chmod(path, packet.d as u16, 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 000000000..e22535e0f --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_block.rs @@ -0,0 +1,211 @@ +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_CHMOD => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.chmod(path, packet.d as u16, 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 000000000..c1e54351a --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_block_mut.rs @@ -0,0 +1,211 @@ +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_CHMOD => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.chmod(path, packet.d as u16, 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 000000000..deb148366 --- /dev/null +++ b/vendor/redox_syscall/src/scheme/scheme_mut.rs @@ -0,0 +1,211 @@ +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_CHMOD => if let Some(path) = unsafe { str_from_raw_parts(packet.b as *const u8, packet.c) } { + self.chmod(path, packet.d as u16, 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 000000000..09a45186a --- /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)) + } +}
\ No newline at end of file diff --git a/vendor/redox_syscall/src/tests.rs b/vendor/redox_syscall/src/tests.rs new file mode 100644 index 000000000..c5e1f8df0 --- /dev/null +++ b/vendor/redox_syscall/src/tests.rs @@ -0,0 +1,470 @@ +#[test] +fn chdir() { + use std::str; + + let mut current_buf = [0; 4096]; + let current_count = dbg!(crate::getcwd(&mut current_buf)).unwrap(); + let current = dbg!(str::from_utf8(¤t_buf[..current_count])).unwrap(); + + let new = "file:"; + assert_eq!(dbg!(crate::chdir(dbg!(new))), Ok(0)); + { + let mut buf = [0; 4096]; + let count = dbg!(crate::getcwd(&mut buf)).unwrap(); + assert_eq!(dbg!(str::from_utf8(&buf[..count])), Ok(new)); + } + + assert_eq!(dbg!(crate::chdir(current)), Ok(0)); + { + let mut buf = [0; 4096]; + let count = dbg!(crate::getcwd(&mut buf)).unwrap(); + assert_eq!(dbg!(str::from_utf8(&buf[..count])), Ok(current)); + } +} + +//TODO: chmod + +#[test] +fn clone() { + let expected_status = 42; + let pid_res = unsafe { crate::clone(crate::CloneFlags::empty()) }; + if pid_res == Ok(0) { + crate::exit(expected_status).unwrap(); + panic!("failed to exit"); + } else { + let pid = dbg!(pid_res).unwrap(); + let mut status = 0; + assert_eq!(dbg!(crate::waitpid(pid, &mut status, crate::WaitFlags::empty())), Ok(pid)); + assert_eq!(dbg!(crate::wifexited(status)), true); + assert_eq!(dbg!(crate::wexitstatus(status)), expected_status); + } +} + +//TODO: close + +#[test] +fn clock_gettime() { + let mut tp = crate::TimeSpec::default(); + assert_eq!(dbg!( + crate::clock_gettime(crate::CLOCK_MONOTONIC, &mut tp) + ), Ok(0)); + assert_ne!(dbg!(tp), crate::TimeSpec::default()); + + tp = crate::TimeSpec::default(); + assert_eq!(dbg!( + crate::clock_gettime(crate::CLOCK_REALTIME, &mut tp) + ), Ok(0)); + assert_ne!(dbg!(tp), crate::TimeSpec::default()); +} + +//TODO: dup + +//TODO: dup2 + +//TODO: exit (handled by clone?) + +//TODO: fchmod + +//TODO: fcntl + +#[test] +fn fexec() { + let name = "file:/bin/ls"; + + let fd = dbg!( + crate::open(name, crate::O_RDONLY | crate::O_CLOEXEC) + ).unwrap(); + + let args = &[ + [name.as_ptr() as usize, name.len()] + ]; + + let vars = &[]; + + let pid_res = unsafe { crate::clone(crate::CloneFlags::empty()) }; + if pid_res == Ok(0) { + crate::fexec(fd, args, vars).unwrap(); + panic!("failed to fexec"); + } else { + assert_eq!(dbg!(crate::close(fd)), Ok(0)); + + let pid = dbg!(pid_res).unwrap(); + let mut status = 0; + assert_eq!(dbg!(crate::waitpid(pid, &mut status, crate::WaitFlags::empty())), Ok(pid)); + assert_eq!(dbg!(crate::wifexited(status)), true); + assert_eq!(dbg!(crate::wexitstatus(status)), 0); + } +} + +#[test] +fn fmap() { + use std::slice; + + let fd = dbg!( + crate::open( + "file:/tmp/syscall-tests-fmap", + crate::O_CREAT | crate::O_RDWR | crate::O_CLOEXEC + ) + ).unwrap(); + + let size = 128; + + let map = unsafe { + slice::from_raw_parts_mut( + dbg!( + crate::fmap(fd, &crate::Map { + address: 0, + offset: 0, + size, + flags: crate::PROT_READ | crate::PROT_WRITE + }) + ).unwrap() as *mut u8, + 128 + ) + }; + + // Maps should be available after closing + assert_eq!(dbg!(crate::close(fd)), Ok(0)); + + for i in 0..128 { + map[i as usize] = i; + assert_eq!(map[i as usize], i); + } + + //TODO: add msync + unsafe { + assert_eq!(dbg!( + crate::funmap(map.as_mut_ptr() as usize, size) + ), Ok(0)); + } +} + +// funmap tested by fmap + +#[test] +fn fpath() { + use std::str; + + let path = "file:/tmp/syscall-tests-fpath"; + let fd = dbg!( + crate::open( + dbg!(path), + crate::O_CREAT | crate::O_RDWR | crate::O_CLOEXEC + ) + ).unwrap(); + + let mut buf = [0; 4096]; + let count = dbg!( + crate::fpath(fd, &mut buf) + ).unwrap(); + + assert_eq!(dbg!(str::from_utf8(&buf[..count])), Ok(path)); + + assert_eq!(dbg!(crate::close(fd)), Ok(0)); +} + +//TODO: frename + +#[test] +fn fstat() { + let path = "file:/tmp/syscall-tests-fstat"; + let fd = dbg!( + crate::open( + dbg!(path), + crate::O_CREAT | crate::O_RDWR | crate::O_CLOEXEC + ) + ).unwrap(); + + let mut stat = crate::Stat::default(); + assert_eq!(dbg!(crate::fstat(fd, &mut stat)), Ok(0)); + assert_ne!(dbg!(stat), crate::Stat::default()); + + assert_eq!(dbg!(crate::close(fd)), Ok(0)); +} + +#[test] +fn fstatvfs() { + let path = "file:/tmp/syscall-tests-fstatvfs"; + let fd = dbg!( + crate::open( + dbg!(path), + crate::O_CREAT | crate::O_RDWR | crate::O_CLOEXEC + ) + ).unwrap(); + + let mut statvfs = crate::StatVfs::default(); + assert_eq!(dbg!(crate::fstatvfs(fd, &mut statvfs)), Ok(0)); + assert_ne!(dbg!(statvfs), crate::StatVfs::default()); + + assert_eq!(dbg!(crate::close(fd)), Ok(0)); +} + +//TODO: fsync + +//TODO: ftruncate + +//TODO: futimens + +//TODO: futex + +// getcwd tested by chdir + +#[test] +fn getegid() { + assert_eq!(crate::getegid(), Ok(0)); +} + +#[test] +fn getens() { + assert_eq!(crate::getens(), Ok(1)); +} + +#[test] +fn geteuid() { + assert_eq!(crate::geteuid(), Ok(0)); +} + +#[test] +fn getgid() { + assert_eq!(crate::getgid(), Ok(0)); +} + +#[test] +fn getns() { + assert_eq!(crate::getns(), Ok(1)); +} + +//TODO: getpid + +//TODO: getpgid + +//TODO: getppid + +#[test] +fn getuid() { + assert_eq!(crate::getuid(), Ok(0)); +} + +//TODO: iopl + +//TODO: kill + +//TODO: link (probably will not work) + +#[test] +fn lseek() { + let path = "file:/tmp/syscall-tests-lseek"; + let fd = dbg!( + crate::open( + dbg!(path), + crate::O_CREAT | crate::O_RDWR | crate::O_CLOEXEC + ) + ).unwrap(); + + { + let mut buf = [0; 256]; + for i in 0..buf.len() { + buf[i] = i as u8; + } + assert_eq!(dbg!(crate::write(fd, &buf)), Ok(buf.len())); + + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_CUR)), Ok(buf.len())); + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_SET)), Ok(0)); + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_END)), Ok(buf.len())); + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_SET)), Ok(0)); + } + + { + let mut buf = [0; 256]; + assert_eq!(dbg!(crate::read(fd, &mut buf)), Ok(buf.len())); + for i in 0..buf.len() { + assert_eq!(buf[i], i as u8); + } + + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_CUR)), Ok(buf.len())); + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_SET)), Ok(0)); + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_END)), Ok(buf.len())); + assert_eq!(dbg!(crate::lseek(fd, 0, crate::SEEK_SET)), Ok(0)); + } + + assert_eq!(dbg!(crate::close(fd)), Ok(0)); +} + +//TODO: mkns + +//TODO: mprotect + +#[test] +fn nanosleep() { + let req = crate::TimeSpec { + tv_sec: 0, + tv_nsec: 0, + }; + let mut rem = crate::TimeSpec::default(); + assert_eq!(crate::nanosleep(&req, &mut rem), Ok(0)); + assert_eq!(rem, crate::TimeSpec::default()); +} + +//TODO: open + +//TODO: physalloc + +//TODO: physfree + +//TODO: physmap + +//TODO: physunmap + +#[test] +fn pipe2() { + let mut fds = [0, 0]; + assert_eq!(dbg!(crate::pipe2(&mut fds, crate::O_CLOEXEC)), Ok(0)); + assert_ne!(dbg!(fds), [0, 0]); + + { + let mut buf = [0; 256]; + for i in 0..buf.len() { + buf[i] = i as u8; + } + assert_eq!(dbg!(crate::write(fds[1], &buf)), Ok(buf.len())); + } + + { + let mut buf = [0; 256]; + assert_eq!(dbg!(crate::read(fds[0], &mut buf)), Ok(buf.len())); + for i in 0..buf.len() { + assert_eq!(buf[i], i as u8); + } + } + + assert_eq!(dbg!(crate::close(fds[0])), Ok(0)); + assert_eq!(dbg!(crate::close(fds[1])), Ok(0)); +} + +//TODO: read + +#[test] +fn rmdir() { + let path = "file:/tmp/syscall-tests-rmdir"; + let fd = dbg!( + crate::open( + dbg!(path), + crate::O_CREAT | crate::O_DIRECTORY | crate::O_CLOEXEC + ) + ).unwrap(); + + assert_eq!(dbg!(crate::close(fd)), Ok(0)); + + assert_eq!(dbg!(crate::rmdir(path)), Ok(0)); +} + +//TODO: setpgid + +//TODO: setregid + +//TODO: setrens + +//TODO: setreuid + +//TODO: sigaction + +//TODO: sigprocmask + +//TODO: sigreturn + +#[test] +fn umask() { + let old = dbg!(crate::umask(0o244)).unwrap(); + assert_eq!(dbg!(crate::umask(old)), Ok(0o244)); +} + +#[test] +fn unlink() { + let path = "file:/tmp/syscall-tests-unlink"; + let fd = dbg!( + crate::open( + dbg!(path), + crate::O_CREAT | crate::O_RDWR | crate::O_CLOEXEC + ) + ).unwrap(); + + assert_eq!(dbg!(crate::close(fd)), Ok(0)); + + assert_eq!(dbg!(crate::unlink(path)), Ok(0)); +} + +//TODO: virttophys + +// waitpid tested by clone + +//TODO: write + +#[test] +fn sched_yield() { + assert_eq!(dbg!(crate::sched_yield()), Ok(0)); +} + +#[test] +fn sigaction() { + use std::{ + mem, + sync::atomic::{AtomicBool, Ordering} + }; + + static SA_HANDLER_WAS_RAN: AtomicBool = AtomicBool::new(false); + static SA_HANDLER_2_WAS_IGNORED: AtomicBool = AtomicBool::new(false); + + let child = unsafe { crate::clone(crate::CLONE_VM).unwrap() }; + + if child == 0 { + let pid = crate::getpid().unwrap(); + + extern "C" fn hello_im_a_signal_handler(signal: usize) { + assert_eq!(signal, crate::SIGUSR1); + SA_HANDLER_WAS_RAN.store(true, Ordering::SeqCst); + } + + let my_signal_handler = crate::SigAction { + sa_handler: Some(hello_im_a_signal_handler), + ..Default::default() + }; + crate::sigaction(crate::SIGUSR1, Some(&my_signal_handler), None).unwrap(); + + crate::kill(pid, crate::SIGUSR1).unwrap(); // calls handler + + let mut old_signal_handler = crate::SigAction::default(); + crate::sigaction( + crate::SIGUSR1, + Some(&crate::SigAction { + sa_handler: unsafe { mem::transmute::<usize, Option<extern "C" fn(usize)>>(crate::SIG_IGN) }, + ..Default::default() + }), + Some(&mut old_signal_handler) + ).unwrap(); + assert_eq!(my_signal_handler, old_signal_handler); + + crate::kill(pid, crate::SIGUSR1).unwrap(); // does nothing + + SA_HANDLER_2_WAS_IGNORED.store(true, Ordering::SeqCst); + + crate::sigaction( + crate::SIGUSR1, + Some(&crate::SigAction { + sa_handler: unsafe { mem::transmute::<usize, Option<extern "C" fn(usize)>>(crate::SIG_DFL) }, + ..Default::default() + }), + Some(&mut old_signal_handler) + ).unwrap(); + + crate::kill(pid, crate::SIGUSR1).unwrap(); // actually exits + } else { + let mut status = 0; + dbg!(crate::waitpid(child, &mut status, crate::WaitFlags::empty())).unwrap(); + + assert!(crate::wifsignaled(status)); + assert_eq!(crate::wtermsig(status), crate::SIGUSR1); + + assert!(SA_HANDLER_WAS_RAN.load(Ordering::SeqCst)); + assert!(SA_HANDLER_2_WAS_IGNORED.load(Ordering::SeqCst)); + } +} |