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Diffstat (limited to 'getrandom/src/solaris_illumos.rs')
-rw-r--r-- | getrandom/src/solaris_illumos.rs | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/getrandom/src/solaris_illumos.rs b/getrandom/src/solaris_illumos.rs deleted file mode 100644 index 9473123..0000000 --- a/getrandom/src/solaris_illumos.rs +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright 2018 Developers of the Rand project. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - -//! Implementation for the Solaris family -//! -//! Read from `/dev/random`, with chunks of limited size (256 bytes). -//! `/dev/random` uses the Hash_DRBG with SHA512 algorithm from NIST SP 800-90A. -//! `/dev/urandom` uses the FIPS 186-2 algorithm, which is considered less -//! secure. We choose to read from `/dev/random`. -//! -//! Since Solaris 11.3 and mid-2015 illumos, the `getrandom` syscall is available. -//! To make sure we can compile on both Solaris and its derivatives, as well as -//! function, we check for the existence of getrandom(2) in libc by calling -//! libc::dlsym. -use crate::util_libc::{sys_fill_exact, Weak}; -use crate::{use_file, Error}; -use core::mem; - -#[cfg(target_os = "illumos")] -type GetRandomFn = unsafe extern "C" fn(*mut u8, libc::size_t, libc::c_uint) -> libc::ssize_t; -#[cfg(target_os = "solaris")] -type GetRandomFn = unsafe extern "C" fn(*mut u8, libc::size_t, libc::c_uint) -> libc::c_int; - -pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> { - static GETRANDOM: Weak = unsafe { Weak::new("getrandom\0") }; - if let Some(fptr) = GETRANDOM.ptr() { - let func: GetRandomFn = unsafe { mem::transmute(fptr) }; - // 256 bytes is the lowest common denominator across all the Solaris - // derived platforms for atomically obtaining random data. - for chunk in dest.chunks_mut(256) { - sys_fill_exact(chunk, |buf| unsafe { - func(buf.as_mut_ptr(), buf.len(), 0) as libc::ssize_t - })? - } - Ok(()) - } else { - use_file::getrandom_inner(dest) - } -} |