rixxc/agent_lib
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use memfd_secret for sync memory

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This commit is contained in:
Aaron Kaiser
2025-04-07 12:06:59 +02:00
parent c61fb504c6
commit 0bb5c528ee
1 changed files with 3 additions and 3 deletions
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6
src/agent.rs
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@@ -1,7 +1,7 @@
use anyhow::{bail, Result}; use anyhow::{bail, Result};
use libc::{ use libc::{
c_char, c_void, close, execve, fork, ftruncate, memfd_create, mmap, perror, MAP_FAILED, c_char, c_void, close, execve, fork, ftruncate, memfd_create, mmap, perror, syscall,
MAP_SHARED, PROT_READ, PROT_WRITE, SYS_memfd_secret, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE,
}; };
use shared_memory_heap::get_shared_mem_fd; use shared_memory_heap::get_shared_mem_fd;
use std::{arch::x86_64::_mm_mfence, ffi::CString, path::Path, ptr}; use std::{arch::x86_64::_mm_mfence, ffi::CString, path::Path, ptr};
@@ -15,7 +15,7 @@ unsafe impl Send for Agent {}
impl Agent { impl Agent {
pub(crate) unsafe fn new(agent_path: &Path, keyfile_path: &Path) -> Result<Self> { pub(crate) unsafe fn new(agent_path: &Path, keyfile_path: &Path) -> Result<Self> {
let data_fd = get_shared_mem_fd(); let data_fd = get_shared_mem_fd();
let sync_fd = memfd_create(r#"sync\0"#.as_ptr() as *const c_char, 0); let sync_fd = syscall(SYS_memfd_secret, 0) as i32;
if sync_fd <= 0 { if sync_fd <= 0 {
bail!("creating memfd failed"); bail!("creating memfd failed");