Test ICMPv6 to link local address and local address. In addition, this test set could be extended to cover more situations in the future.

ICMPv6 to local addresses TEST: Ping to link local address [OK] TEST: Ping to link local address from ::1 [OK] TEST: Ping to local address [OK] TEST: Ping to local address from ::1 [OK]

Tests passed: 4 Tests failed: 0

Signed-off-by: Fernando Fernandez Mancera fmancera@suse.de --- tools/testing/selftests/net/Makefile | 1 + tools/testing/selftests/net/ipv6_icmp.sh | 204 +++++++++++++++++++++++ 2 files changed, 205 insertions(+) create mode 100755 tools/testing/selftests/net/ipv6_icmp.sh

diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index b66ba04f19d9..4d29b47bb084 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -47,6 +47,7 @@ TEST_PROGS := \ ip_local_port_range.sh \ ipv6_flowlabel.sh \ ipv6_force_forwarding.sh \ + ipv6_icmp.sh \ ipv6_route_update_soft_lockup.sh \ l2_tos_ttl_inherit.sh \ l2tp.sh \ diff --git a/tools/testing/selftests/net/ipv6_icmp.sh b/tools/testing/selftests/net/ipv6_icmp.sh new file mode 100755 index 000000000000..d4764219007c --- /dev/null +++ b/tools/testing/selftests/net/ipv6_icmp.sh @@ -0,0 +1,204 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# This test is for checking IPv6 ICMP behavior in different situations. +source lib.sh +ret=0 + +# all tests in this script, can be overridden with -t option +TESTS="icmpv6_to_local_address" + +VERBOSE=0 +PAUSE_ON_FAIL=no +PAUSE=no + +which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping) + +log_test() +{ + local rc=$1 + local expected=$2 + local msg="$3" + + if [ ${rc} -eq ${expected} ]; then + printf " TEST: %-60s [OK]\n" "${msg}" + nsuccess=$((nsuccess+1)) + else + ret=1 + nfail=$((nfail+1)) + printf " TEST: %-60s [FAIL]\n" "${msg}" + if [ "${PAUSE_ON_FAIL}" = "yes" ]; then + echo + echo "hit enter to continue, 'q' to quit" + read a + [ "$a" = "q" ] && exit 1 + fi + fi + + if [ "${PAUSE}" = "yes" ]; then + echo + echo "hit enter to continue, 'q' to quit" + read a + [ "$a" = "q" ] && exit 1 + fi +} + +setup() +{ + set -e + setup_ns ns1 + IP="$(which ip) -netns $ns1" + NS_EXEC="$(which ip) netns exec $ns1" + + $IP link add dummy0 type dummy + $IP link set dev dummy0 up + $IP -6 address add 2001:db8:1::1/64 dev dummy0 nodad + set +e +} + +cleanup() +{ + $IP link del dev dummy0 &> /dev/null + cleanup_ns $ns1 +} + +get_linklocal() +{ + local dev=$1 + local addr + + addr=$($IP -6 -br addr show dev ${dev} | \ + awk '{ + for (i = 3; i <= NF; ++i) { + if ($i ~ /^fe80/) + print $i + } + }' + ) + addr=${addr//*} + + [ -z "$addr" ] && return 1 + + echo $addr + + return 0 +} + +run_cmd() +{ + local cmd="$1" + local out + local stderr="2>/dev/null" + + if [ "$VERBOSE" = "1" ]; then + printf " COMMAND: $cmd\n" + stderr= + fi + + out=$(eval $cmd $stderr) + rc=$? + if [ "$VERBOSE" = "1" -a -n "$out" ]; then + echo " $out" + fi + + [ "$VERBOSE" = "1" ] && echo + + return $rc +} + +icmpv6_to_local_address() +{ + local rc + + echo + echo "ICMPv6 to local addresses" + + setup + + local lldummy=$(get_linklocal dummy0) + + if [ -z "$lldummy" ]; then + echo "Failed to get link local address for dummy0" + return 1 + fi + + # ping6 to link local address + run_cmd "$NS_EXEC ${ping6} -c 3 $lldummy%dummy0" + log_test $? 0 "Ping to link local address" + + # ping6 to link local address from localhost (::1) + run_cmd "$NS_EXEC ${ping6} -c 3 -I ::1 $lldummy%dummy0" + log_test $? 0 "Ping to link local address from ::1" + + # ping6 to local address + run_cmd "$NS_EXEC ${ping6} -c 3 2001:db8:1::1" + log_test $? 0 "Ping to local address" + + # ping6 to local address from localhost (::1) + run_cmd "$NS_EXEC ${ping6} -c 3 -I ::1 2001:db8:1::1" + log_test $? 0 "Ping to local address from ::1" +} + +################################################################################ +# usage + +usage() +{ + cat <<EOF +usage: ${0##*/} OPTS + + -t <test> Test(s) to run (default: all) + (options: $TESTS) + -p Pause on fail + -P Pause after each test before cleanup + -v Verbose mode (show commands and output) +EOF +} + +################################################################################ +# main + +trap cleanup EXIT + +while getopts :t:pPhv o +do + case $o in + t) TESTS=$OPTARG;; + p) PAUSE_ON_FAIL=yes;; + P) PAUSE=yes;; + v) VERBOSE=$(($VERBOSE + 1));; + h) usage; exit 0;; + *) usage; exit 1;; + esac +done + +[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no + +if [ "$(id -u)" -ne 0 ];then + echo "SKIP: Need root privileges" + exit $ksft_skip; +fi + +if [ ! -x "$(command -v ip)" ]; then + echo "SKIP: Could not run test without ip tool" + exit $ksft_skip +fi + +# start clean +cleanup &> /dev/null + +for t in $TESTS +do + case $t in + icmpv6_to_local_address) icmpv6_to_local_address;; + + help) echo "Test names: $TESTS"; exit 0;; + esac +done + +if [ "$TESTS" != "none" ]; then + printf "\nTests passed: %3d\n" ${nsuccess} + printf "Tests failed: %3d\n" ${nfail} +fi + +exit $ret