YutaroHayakawa

deploy:
	kind create cluster --config cluster.yaml
	sudo containerlab -t topo.yaml deploy
	helm install --kube-context kind-clab-kind-in-clab -n kube-system cilium cilium/cilium --version v1.12.0-rc1 -f values.yaml
	kubectl apply -f netshoot-ds.yaml

reload:
	kind delete clusters clab-kind-in-clab
	sudo containerlab -t topo.yaml destroy
	kind create cluster --config cluster.yaml

YutaroHayakawa

2012388348025305     001                   dev_queue_xmit
2012388348026064     001                 __dev_queue_xmit
2012388348026864     001              netdev_core_pick_tx
2012388348028138     001                validate_xmit_skb
2012388348029671     001               netif_skb_features
2012388348031002     001             skb_network_protocol
2012388348032010     001               validate_xmit_xfrm
2012388348033276     001              dev_hard_start_xmit
2012388348034273     001       ieee80211_subif_start_xmit
2012388348035331     001     __ieee80211_subif_start_xmit

YutaroHayakawa

50091332972064       000                    ip_rcv_finish
50091332990895       000             ip_route_input_noref
50091333002316       000                 ip_local_deliver
50091333010230       000          ip_local_deliver_finish
50091333013020       000          ip_protocol_deliver_rcu
50091333017298       000                raw_local_deliver
50091333020764       000                    xfrm4_esp_rcv
50091333025875       000                        xfrm4_rcv
50091333029768       000                       xfrm_input
50091333038316       000                      secpath_set

YutaroHayakawa

50751335472371       003                    ip_rcv_finish
50751335488968       003             ip_route_input_noref
50751335500096       003                 ip_local_deliver
50751335508048       003          ip_local_deliver_finish
50751335511220       003          ip_protocol_deliver_rcu
50751335515955       003                raw_local_deliver
50751335520090       003                    xfrm4_esp_rcv
50751335527135       003                        xfrm4_rcv
50751335531910       003                       xfrm_input
50751335540593       003                      secpath_set

YutaroHayakawa

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <gbpf/gbpf.h>

struct my_data {
  int mymap;
  int myprog;
};

YutaroHayakawa

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <getopt.h>

YutaroHayakawa

BPF = {}

local emit = function (code, dst, src, off, imm)
  return string.pack("=I1I1I2I4", code, dst << 4 | src, off, imm)
end

-- Register
BPF.R0 = 0
BPF.R1 = 1
BPF.R2 = 2

YutaroHayakawa

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  TUN - Universal TUN/TAP device driver.
 *  Copyright (C) 1999-2002 Maxim Krasnyansky <[email protected]>
 *
 *  $Id: tun.c,v 1.15 2002/03/01 02:44:24 maxk Exp $
 */

/*
 *  Changes:

YutaroHayakawa

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stddef.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <assert.h>

YutaroHayakawa

import re
import click
import socket
import ipaddress
import dataclasses
from bcc import BPF
from ctypes import *
from jinja2 import Template