working on argument passing

[pve-lxc-syscalld.git] / src / sys_mknod.rs

use std::ffi::CString;

use failure::Error;
use nix::errno::Errno;
use nix::sys::stat;

use crate::lxcseccomp::ProxyMessageBuffer;
use crate::syscall::SyscallStatus;
use crate::tools::Fd;

pub async fn mknod(msg: &ProxyMessageBuffer) -> Result<SyscallStatus, Error> {
    let pathname = msg.arg_c_string(0)?;
    let mode = msg.arg_mode_t(1)?;
    let dev = msg.arg_dev_t(2)?;
    let cwd = msg.pid_fd().fd_cwd()?;
    do_mknodat(cwd, pathname, mode, dev).await
}

pub async fn mknodat(msg: &ProxyMessageBuffer) -> Result<SyscallStatus, Error> {
    let dirfd = msg.arg_fd(0, libc::O_DIRECTORY)?;
    let pathname = msg.arg_c_string(1)?;
    let mode = msg.arg_mode_t(2)?;
    let dev = msg.arg_dev_t(3)?;
    do_mknodat(dirfd, pathname, mode, dev).await
}

async fn do_mknodat(
    _dirfd: Fd,
    _pathname: CString,
    _mode: stat::Mode,
    _dev: stat::dev_t,
) -> Result<SyscallStatus, Error> {
    println!("=> Responding with ENOENT");
    Err(Errno::ENOENT.into())
}