From 6fcf0c5669489c3d443ca18d76c591fb28f43e8b Mon Sep 17 00:00:00 2001
From: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Date: Wed, 9 Feb 2022 13:38:36 +0900
Subject: [PATCH] Add `attach` attribute for cgroup SKB

When cgroup SKB is generated via template, the `attach` attribute is
always missing and the program does not work by default.

This patch fixes it.
---
 {{project-name}}-ebpf/src/main.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/{{project-name}}-ebpf/src/main.rs b/{{project-name}}-ebpf/src/main.rs
index f676e99..546722d 100644
--- a/{{project-name}}-ebpf/src/main.rs
+++ b/{{project-name}}-ebpf/src/main.rs
@@ -183,7 +183,11 @@ use aya_bpf::{
     programs::SkBuffContext,
 };
 
-#[cgroup_skb(name="{{crate_name}}")]
+{% if direction == "Ingress" -%}
+#[cgroup_skb(name="{{crate_name}}",attach="ingress")]
+{%- else -%}
+#[cgroup_skb(name="{{crate_name}}",attach="egress")]
+{%- endif %}
 pub fn {{crate_name}}(ctx: SkBuffContext) -> i32 {
     match unsafe { try_{{crate_name}}(ctx) } {
         Ok(ret) => ret,