From f51746c5df37ba9c5f148cd52696a8d5ca8cf13a Mon Sep 17 00:00:00 2001
From: Dreaded_X <tim@huizinga.dev>
Date: Tue, 21 Apr 2026 04:46:31 +0200
Subject: [PATCH] feat: Add function that applies netmask to ip

---
 src/environment.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/environment.rs b/src/environment.rs
index 5836d34..904e36e 100644
--- a/src/environment.rs
+++ b/src/environment.rs
@@ -16,6 +16,13 @@ pub struct PathEnvironment<'a> {
     path: PathBuf,
 }
 
+fn apply_netmask(
+    ip: ViaDeserialize<Ipv4Addr>,
+    netmask: ViaDeserialize<Ipv4Addr>,
+) -> Result<String, minijinja::Error> {
+    Ok((*ip & *netmask).to_string())
+}
+
 impl<'a> PathEnvironment<'a> {
     pub fn new(path: &Path) -> Self {
         let mut env = Environment::new();
@@ -41,6 +48,8 @@ impl<'a> PathEnvironment<'a> {
             }
         });
 
+        env.add_function("apply_netmask", apply_netmask);
+
         // Helper function for getting the path to kubeconfig files
         env.add_filter("kubeconfig", move |names: Vec<String>| {
             names