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https://github.com/aljazceru/kata-containers.git
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f55667df38
Fixes to allow the rust agent to be built using a gnu target. Specifically, remove assumptions about musl-specific types. Fixes: #70. Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
43 lines
1.1 KiB
Rust
43 lines
1.1 KiB
Rust
// Copyright (c) 2019 Ant Financial
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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use libc;
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use nix::errno::Errno;
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use nix::fcntl::{self, OFlag};
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use nix::sys::stat::Mode;
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use rustjail::errors::*;
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use std::fs;
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pub const RNGDEV: &'static str = "/dev/random";
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pub const RNDADDTOENTCNT: libc::c_int = 0x40045201;
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pub const RNDRESEEDRNG: libc::c_int = 0x5207;
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// Handle the differing ioctl(2) request types for different targets
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#[cfg(target_env = "musl")]
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type IoctlRequestType = libc::c_int;
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#[cfg(target_env = "gnu")]
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type IoctlRequestType = libc::c_ulong;
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pub fn reseed_rng(data: &[u8]) -> Result<()> {
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let len = data.len() as libc::c_long;
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fs::write(RNGDEV, data)?;
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let fd = fcntl::open(RNGDEV, OFlag::O_RDWR, Mode::from_bits_truncate(0o022))?;
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let ret = unsafe {
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libc::ioctl(
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fd,
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RNDADDTOENTCNT as IoctlRequestType,
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&len as *const libc::c_long,
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)
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};
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let _ = Errno::result(ret).map(drop)?;
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let ret = unsafe { libc::ioctl(fd, RNDRESEEDRNG as IoctlRequestType, 0) };
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let _ = Errno::result(ret).map(drop)?;
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Ok(())
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}
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