Add a lib.sh for net selftests. This file can be used to define commonly used variables and functions.
Add function setup_ns() for user to create unique namespaces with given prefix name. Signed-off-by: Hangbin Liu <[email protected]> --- tools/testing/selftests/net/Makefile | 2 +- tools/testing/selftests/net/lib.sh | 98 ++++++++++++++++++++++++++++ 2 files changed, 99 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/net/lib.sh diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 9274edfb76ff..14bd68da7466 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -54,7 +54,7 @@ TEST_PROGS += ip_local_port_range.sh TEST_PROGS += rps_default_mask.sh TEST_PROGS += big_tcp.sh TEST_PROGS_EXTENDED := in_netns.sh setup_loopback.sh setup_veth.sh -TEST_PROGS_EXTENDED += toeplitz_client.sh toeplitz.sh +TEST_PROGS_EXTENDED += toeplitz_client.sh toeplitz.sh lib.sh TEST_GEN_FILES = socket nettest TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any TEST_GEN_FILES += tcp_mmap tcp_inq psock_snd txring_overwrite diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh new file mode 100644 index 000000000000..239ab2beb438 --- /dev/null +++ b/tools/testing/selftests/net/lib.sh @@ -0,0 +1,98 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +############################################################################## +# Defines + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 +# namespace list created by setup_ns +NS_LIST="" + +############################################################################## +# Helpers +busywait() +{ + local timeout=$1; shift + + local start_time="$(date -u +%s%3N)" + while true + do + local out + out=$($@) + local ret=$? + if ((!ret)); then + echo -n "$out" + return 0 + fi + + local current_time="$(date -u +%s%3N)" + if ((current_time - start_time > timeout)); then + echo -n "$out" + return 1 + fi + done +} + +cleanup_ns() +{ + local ns="" + local errexit=0 + + # disable errexit temporary + if [[ $- =~ "e" ]]; then + errexit=1 + set +e + fi + + for ns in "$@"; do + ip netns delete "${ns}" &> /dev/null + busywait 2 "ip netns list | grep -vq $1" &> /dev/null + if ip netns list | grep -q $1; then + echo "Failed to remove namespace $1" + return $ksft_skip + fi + done + + [ $errexit -eq 1 ] && set -e + return 0 +} + +# By default, remove all netns before EXIT. +cleanup_all_ns() +{ + cleanup_ns $NS_LIST +} +trap cleanup_all_ns EXIT + +# setup netns with given names as prefix. e.g +# setup_ns local remote +setup_ns() +{ + local ns="" + # the ns list we created in this call + local ns_list="" + while [ -n "$1" ]; do + # Some test may setup/remove same netns multi times + if unset $1 2> /dev/null; then + ns="${1,,}-$(mktemp -u XXXXXX)" + eval readonly $1=$ns + else + eval ns='$'$1 + cleanup_ns $ns + + fi + + ip netns add $ns + if ! ip netns list | grep -q $ns; then + echo "Failed to create namespace $1" + cleanup_ns $ns_list + return $ksft_skip + fi + ip -n $ns link set lo up + ns_list="$ns_list $ns" + + shift + done + NS_LIST="$NS_LIST $ns_list" +} -- 2.41.0
