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rand number

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This commit is contained in:
ssrlive 2023-09-23 21:57:00 +08:00
parent bdb7bec062
commit 4710e32873
2 changed files with 5 additions and 23 deletions
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2
Cargo.toml
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@ -52,6 +52,7 @@ serial_test = "2.0"
test-log = "0.2" test-log = "0.2"
[target.'cfg(target_os="windows")'.dependencies] [target.'cfg(target_os="windows")'.dependencies]
rand = "0.8"
windows = { version = "0.51", features = [ windows = { version = "0.51", features = [
"Win32_Storage_FileSystem", "Win32_Storage_FileSystem",
"Win32_NetworkManagement_IpHelper", "Win32_NetworkManagement_IpHelper",
@ -60,4 +61,3 @@ windows = { version = "0.51", features = [
"Win32_Foundation", "Win32_Foundation",
] } ] }
wintun = "0.3" wintun = "0.3"
mio = { version = "0.8", features = ["net", "os-ext", "os-poll"] }

26
src/wintuninterface.rs
View file

@ -13,29 +13,11 @@ use std::{
sync::Arc, sync::Arc,
vec::Vec, vec::Vec,
}; };
use windows::{ use windows::Win32::Storage::FileSystem::FILE_FLAG_OVERLAPPED;
core::PCWSTR,
Win32::{
Security::Cryptography::{CryptAcquireContextW, CryptGenRandom, CryptReleaseContext, PROV_RSA_FULL},
Storage::FileSystem::FILE_FLAG_OVERLAPPED,
},
};
fn generate_random_bytes(len: usize) -> Result<Vec<u8>, windows::core::Error> {
let mut buf = vec![0u8; len];
unsafe {
let mut h_prov = 0_usize;
let null = PCWSTR::null();
CryptAcquireContextW(&mut h_prov, null, null, PROV_RSA_FULL, 0)?;
CryptGenRandom(h_prov, &mut buf)?;
CryptReleaseContext(h_prov, 0)?;
};
Ok(buf)
}
fn server() -> io::Result<(NamedPipe, String)> { fn server() -> io::Result<(NamedPipe, String)> {
let num = generate_random_bytes(8).unwrap(); use rand::Rng;
let num = num.iter().fold(0, |acc, &x| acc * 256 + x as u64); let num: u64 = rand::thread_rng().gen();
let name = format!(r"\\.\pipe\my-pipe-{}", num); let name = format!(r"\\.\pipe\my-pipe-{}", num);
let pipe = NamedPipe::new(&name)?; let pipe = NamedPipe::new(&name)?;
Ok((pipe, name)) Ok((pipe, name))
@ -48,7 +30,7 @@ fn client(name: &str) -> io::Result<NamedPipe> {
unsafe { Ok(NamedPipe::from_raw_handle(file.into_raw_handle())) } unsafe { Ok(NamedPipe::from_raw_handle(file.into_raw_handle())) }
} }
fn pipe() -> io::Result<(NamedPipe, NamedPipe)> { pub(crate) fn pipe() -> io::Result<(NamedPipe, NamedPipe)> {
let (pipe, name) = server()?; let (pipe, name) = server()?;
Ok((pipe, client(&name)?)) Ok((pipe, client(&name)?))
} }