LXR linux/tools/testing/selftests/bpf/test_skb_cgroup

   1#!/bin/sh
   2# SPDX-License-Identifier: GPL-2.0
   3# Copyright (c) 2018 Facebook
   4
   5set -eu
   6
   7wait_for_ip()
   8{
   9        local _i
  10        echo -n "Wait for testing link-local IP to become available "
  11        for _i in $(seq ${MAX_PING_TRIES}); do
  12                echo -n "."
  13                if ping -6 -q -c 1 -W 1 ff02::1%${TEST_IF} >/dev/null 2>&1; then
  14                        echo " OK"
  15                        return
  16                fi
  17                sleep 1
  18        done
  19        echo 1>&2 "ERROR: Timeout waiting for test IP to become available."
  20        exit 1
  21}
  22
  23setup()
  24{
  25        # Create testing interfaces not to interfere with current environment.
  26        ip link add dev ${TEST_IF} type veth peer name ${TEST_IF_PEER}
  27        ip link set ${TEST_IF} up
  28        ip link set ${TEST_IF_PEER} up
  29
  30        wait_for_ip
  31
  32        tc qdisc add dev ${TEST_IF} clsact
  33        tc filter add dev ${TEST_IF} egress bpf obj ${BPF_PROG_OBJ} \
  34                sec ${BPF_PROG_SECTION} da
  35
  36        BPF_PROG_ID=$(tc filter show dev ${TEST_IF} egress | \
  37                        awk '/ id / {sub(/.* id /, "", $0); print($1)}')
  38}
  39
  40cleanup()
  41{
  42        ip link del ${TEST_IF} 2>/dev/null || :
  43        ip link del ${TEST_IF_PEER} 2>/dev/null || :
  44}
  45
  46main()
  47{
  48        trap cleanup EXIT 2 3 6 15
  49        setup
  50        ${PROG} ${TEST_IF} ${BPF_PROG_ID}
  51}
  52
  53DIR=$(dirname $0)
  54TEST_IF="test_cgid_1"
  55TEST_IF_PEER="test_cgid_2"
  56MAX_PING_TRIES=5
  57BPF_PROG_OBJ="${DIR}/test_skb_cgroup_id_kern.o"
  58BPF_PROG_SECTION="cgroup_id_logger"
  59BPF_PROG_ID=0
  60PROG="${DIR}/test_skb_cgroup_id_user"
  61
  62main
  63