test_skb_cgroup_id.sh

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Facebook

set -eu

wait_for_ip()
{
	local _i
	echo -n "Wait for testing link-local IP to become available "
	for _i in $(seq ${MAX_PING_TRIES}); do
		echo -n "."
		if $PING6 -c 1 -W 1 ff02::1%${TEST_IF} >/dev/null 2>&1; then
			echo " OK"
			return
		fi
		sleep 1
	done
	echo 1>&2 "ERROR: Timeout waiting for test IP to become available."
	exit 1
}

setup()
{
	# Create testing interfaces not to interfere with current environment.
	ip link add dev ${TEST_IF} type veth peer name ${TEST_IF_PEER}
	ip link set ${TEST_IF} up
	ip link set ${TEST_IF_PEER} up

wait_for_ip

tc qdisc add dev ${TEST_IF} clsact
	tc filter add dev ${TEST_IF} egress bpf obj ${BPF_PROG_OBJ} \
		sec ${BPF_PROG_SECTION} da

BPF_PROG_ID=$(tc filter show dev ${TEST_IF} egress | \
			awk '/ id / {sub(/.* id /, "", $0); print($1)}')
}

cleanup()
{
	ip link del ${TEST_IF} 2>/dev/null || :
	ip link del ${TEST_IF_PEER} 2>/dev/null || :
}

main()
{
	trap cleanup EXIT 2 3 6 15
	setup
	${PROG} ${TEST_IF} ${BPF_PROG_ID}
}

DIR=$(dirname $0)
TEST_IF="test_cgid_1"
TEST_IF_PEER="test_cgid_2"
MAX_PING_TRIES=5
BPF_PROG_OBJ="${DIR}/test_skb_cgroup_id_kern.bpf.o"
BPF_PROG_SECTION="cgroup_id_logger"
BPF_PROG_ID=0
PROG="${DIR}/test_skb_cgroup_id_user"
type ping6 >/dev/null 2>&1 && PING6="ping6" || PING6="ping -6"

main

docroot: /var/www/469ed2f6-4d4b-4a8a-9f5e-ee4ef04d3bc8/public_html

curdir: /usr/src/linux-headers-6.8.0-117/tools/testing/selftests/bpf

	.	4096
	..	4096
X	Makefile	30236
X	Makefile.docs	2239
	benchs	4096
	bpf_testmod	4096
X	ima_setup.sh	3339
X	test_bpftool.sh	415
X	test_bpftool_build.sh	3992
X	test_bpftool_metadata.sh	1672
X	test_doc_build.sh	638
X	test_flow_dissector.sh	5655
X	test_ftrace.sh	786
X	test_kmod.sh	1498
X	test_lirc_mode2.sh	764
X	test_lwt_ip_encap.sh	14902
X	test_lwt_seg6local.sh	6258
X	test_skb_cgroup_id.sh	1353
X	test_sock_addr.sh	1105
X	test_tc_edt.sh	2811
X	test_tc_tunnel.sh	8007
X	test_tcp_check_syncookie.sh	1744
X	test_tunnel.sh	14607
X	test_xdp_features.sh	2558
X	test_xdp_meta.sh	1487
X	test_xdp_redirect.sh	1851
X	test_xdp_redirect_multi.sh	6325
X	test_xdp_veth.sh	3298
X	test_xdp_vlan.sh	6029
X	test_xdp_vlan_mode_generic.sh	186
X	test_xdp_vlan_mode_native.sh	180
X	test_xdping.sh	2172
X	test_xsk.sh	5446
X	verify_sig_setup.sh	2797
X	vmtest.sh	10121
X	with_addr.sh	1296
X	with_tunnels.sh	693
X	xsk_prereqs.sh	1514