Add BSD Support

implants/lib/eldritch/Cargo.toml

@@ -29,7 +29,6 @@ hex-literal = { workspace = true }
 ipnetwork = { workspace = true }
 log = { workspace = true }
 md5 = { workspace = true }
-netstat2 = { workspace = true }
 nix = { workspace = true }
 notify = { workspace = true }
 object = { workspace = true }
@@ -76,6 +75,9 @@ winreg = { workspace = true }
 [target.'cfg(not(windows))'.dependencies]
 pnet = { workspace = true }
 
+[target.'cfg(not(target_os = "freebsd"))'.dependencies]
+netstat2 = { workspace = true }
+
 [dev-dependencies]
 transport = { workspace = true, features = ["mock"]}
 httptest = { workspace = true }

implants/lib/eldritch/src/file/list_impl.rs

@@ -16,6 +16,8 @@ use std::os::macos::fs::MetadataExt;
 use std::os::unix::fs::PermissionsExt;
 #[cfg(target_os = "windows")]
 use std::os::windows::fs::MetadataExt;
+#[cfg(target_os = "freebsd")]
+use std::os::freebsd::fs::MetadataExt;
 use sysinfo::{System, SystemExt, UserExt};
 
 const UNKNOWN: &str = "UNKNOWN";

implants/lib/eldritch/src/process/netstat_impl.rs

@@ -1,12 +1,21 @@
 use super::super::insert_dict_kv;
 use anyhow::Result;
+#[cfg(target_os = "freebsd")]
+use anyhow::anyhow;
+#[cfg(not(target_os = "freebsd"))]
 use netstat2::*;
 use starlark::{
     collections::SmallMap,
     const_frozen_string,
     values::{dict::Dict, Heap, Value},
 };
 
+#[cfg(target_os = "freebsd")]
+pub fn netstat(_: &Heap) -> Result<Vec<Dict>> {
+    Err(anyhow!("Not implemented for FreeBSD"))
+}
+
+#[cfg(not(target_os = "freebsd"))]
 pub fn netstat(starlark_heap: &Heap) -> Result<Vec<Dict>> {
     let mut out: Vec<Dict> = Vec::new();
     let af_flags = AddressFamilyFlags::IPV4 | AddressFamilyFlags::IPV6;

implants/lib/eldritch/src/sys/exec_impl.rs

@@ -1,7 +1,7 @@
 use super::super::insert_dict_kv;
 use super::CommandOutput;
 use anyhow::{Context, Result};
-#[cfg(any(target_os = "linux", target_os = "macos"))]
+#[cfg(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))]
 use nix::{
     sys::wait::waitpid,
     unistd::{fork, ForkResult},
@@ -11,7 +11,7 @@ use starlark::{
     const_frozen_string,
     values::{dict::Dict, Heap},
 };
-#[cfg(any(target_os = "linux", target_os = "macos"))]
+#[cfg(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))]
 use std::process::exit;
 use std::process::Command;
 // https://stackoverflow.com/questions/62978157/rust-how-to-spawn-child-process-that-continues-to-live-after-parent-receives-si#:~:text=You%20need%20to%20double%2Dfork,is%20not%20related%20to%20rust.&text=You%20must%20not%20forget%20to,will%20become%20a%20zombie%20process.
@@ -54,7 +54,7 @@ fn handle_exec(path: String, args: Vec<String>, disown: Option<bool>) -> Result<
             "Windows is not supported for disowned processes."
         ));
 
-        #[cfg(any(target_os = "linux", target_os = "macos"))]
+        #[cfg(any(target_os = "linux", target_os = "macos", target_os = "freebsd"))]
         match unsafe { fork()? } {
             ForkResult::Parent { child } => {
                 // Wait for intermediate process to exit.