socket_filter: fix build

The signature of attach changed in
https://github.com/aya-rs/aya/pull/723.

test.sh

@@ -49,7 +49,7 @@ case "$PROG_TYPE" in
         ADDITIONAL_ARGS=''
 esac
 
-cargo generate -v --path "${TEMPLATE_DIR}" -n test -d program_type="${PROG_TYPE}" ${ADDITIONAL_ARGS}
+cargo generate --path "${TEMPLATE_DIR}" -n test -d program_type="${PROG_TYPE}" ${ADDITIONAL_ARGS}
 pushd test
 cargo xtask build-ebpf
 cargo build

xtask/src/build_ebpf.rs

@@ -44,7 +44,6 @@ pub fn build_ebpf(opts: Options) -> Result<(), anyhow::Error> {
     let target = format!("--target={}", opts.target);
     let mut args = vec![
         "build",
-        "--verbose",
         target.as_str(),
         "-Z",
         "build-std=core",

{{project-name}}/src/main.rs

@@ -35,7 +35,6 @@ use aya::util::online_cpus;
 use aya::{programs::BtfTracePoint, Btf};
 {%- when "socket_filter" -%}
 use std::net::TcpStream;
-use std::os::unix::io::AsRawFd;
 use aya::programs::SocketFilter;
 {%- when "raw_tracepoint" -%}
 use aya::programs::RawTracePoint;
@@ -165,7 +164,7 @@ async fn main() -> Result<(), anyhow::Error> {
     let client = TcpStream::connect("127.0.0.1:1234")?;
     let prog: &mut SocketFilter = bpf.program_mut("{{crate_name}}").unwrap().try_into()?;
     prog.load()?;
-    prog.attach(client.as_raw_fd())?;
+    prog.attach(client)?;
     {%- when "cgroup_sysctl" -%}
     let program: &mut CgroupSysctl = bpf.program_mut("{{crate_name}}").unwrap().try_into()?;
     let cgroup = std::fs::File::open(opt.cgroup_path)?;