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|
cfg_select! {
// Tier 1
any(target_os = "linux", target_os = "android") => {
mod linux;
pub use linux::{fill_bytes, hashmap_random_keys};
}
target_os = "windows" => {
mod windows;
pub use windows::fill_bytes;
}
target_vendor = "apple" => {
mod apple;
pub use apple::fill_bytes;
// Others, in alphabetical ordering.
}
any(
target_os = "dragonfly",
target_os = "freebsd",
target_os = "haiku",
target_os = "illumos",
target_os = "netbsd",
target_os = "openbsd",
target_os = "rtems",
target_os = "solaris",
target_os = "vita",
target_os = "nuttx",
) => {
mod arc4random;
pub use arc4random::fill_bytes;
}
target_os = "emscripten" => {
mod getentropy;
pub use getentropy::fill_bytes;
}
target_os = "espidf" => {
mod espidf;
pub use espidf::fill_bytes;
}
target_os = "fuchsia" => {
mod fuchsia;
pub use fuchsia::fill_bytes;
}
target_os = "hermit" => {
mod hermit;
pub use hermit::fill_bytes;
}
any(target_os = "horizon", target_os = "cygwin") => {
// FIXME(horizon): add arc4random_buf to shim-3ds
mod getrandom;
pub use getrandom::fill_bytes;
}
any(
target_os = "aix",
target_os = "hurd",
target_os = "l4re",
target_os = "nto",
) => {
mod unix_legacy;
pub use unix_legacy::fill_bytes;
}
target_os = "redox" => {
mod redox;
pub use redox::fill_bytes;
}
all(target_vendor = "fortanix", target_env = "sgx") => {
mod sgx;
pub use sgx::fill_bytes;
}
target_os = "solid_asp3" => {
mod solid;
pub use solid::fill_bytes;
}
target_os = "teeos" => {
mod teeos;
pub use teeos::fill_bytes;
}
target_os = "trusty" => {
mod trusty;
pub use trusty::fill_bytes;
}
target_os = "uefi" => {
mod uefi;
pub use uefi::fill_bytes;
}
target_os = "vxworks" => {
mod vxworks;
pub use vxworks::fill_bytes;
}
all(target_os = "wasi", target_env = "p1") => {
mod wasip1;
pub use wasip1::fill_bytes;
}
all(target_os = "wasi", target_env = "p2") => {
mod wasip2;
pub use wasip2::{fill_bytes, hashmap_random_keys};
}
target_os = "zkvm" => {
mod zkvm;
pub use zkvm::fill_bytes;
}
any(
all(target_family = "wasm", target_os = "unknown"),
target_os = "xous",
) => {
// FIXME: finally remove std support for wasm32-unknown-unknown
// FIXME: add random data generation to xous
mod unsupported;
pub use unsupported::{fill_bytes, hashmap_random_keys};
}
_ => {}
}
#[cfg(not(any(
target_os = "linux",
target_os = "android",
all(target_family = "wasm", target_os = "unknown"),
all(target_os = "wasi", target_env = "p2"),
target_os = "xous",
)))]
pub fn hashmap_random_keys() -> (u64, u64) {
let mut buf = [0; 16];
fill_bytes(&mut buf);
let k1 = u64::from_ne_bytes(buf[..8].try_into().unwrap());
let k2 = u64::from_ne_bytes(buf[8..].try_into().unwrap());
(k1, k2)
}
|
