cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

test_skb_cgroup_id.sh (1349B)

      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 $PING6 -c 1 -W 1 ff02::1%${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"
     61type ping6 >/dev/null 2>&1 && PING6="ping6" || PING6="ping -6"
     62
     63main