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Paolo Abenidavem330
Paolo Abeni
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davem330
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selftests: add PM netlink functional tests
This introduces basic self-tests for the PM netlink, checking the basic APIs and possible exceptional values. Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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‎tools/testing/selftests/net/mptcp/.gitignore‎

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mptcp_connect
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pm_nl_ctl
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*.pcap

‎tools/testing/selftests/net/mptcp/Makefile‎

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# SPDX-License-Identifier: GPL-2.0
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top_srcdir = ../../../../..
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KSFT_KHDR_INSTALL := 1
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CFLAGS = -Wall -Wl,--no-as-needed -O2 -g
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CFLAGS = -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include
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TEST_PROGS := mptcp_connect.sh
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TEST_PROGS := mptcp_connect.sh pm_netlink.sh
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TEST_GEN_FILES = mptcp_connect
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TEST_GEN_FILES = mptcp_connect pm_nl_ctl
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TEST_FILES := settings
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‎tools/testing/selftests/net/mptcp/pm_netlink.sh‎

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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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ksft_skip=4
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ret=0
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usage() {
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echo "Usage: $0 [ -h ]"
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}
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while getopts "$optstring" option;do
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case "$option" in
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"h")
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usage $0
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exit 0
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;;
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"?")
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usage $0
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exit 1
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;;
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esac
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done
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sec=$(date +%s)
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rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
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ns1="ns1-$rndh"
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err=$(mktemp)
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ret=0
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cleanup()
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{
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rm -f $out
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ip netns del $ns1
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}
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ip -Version > /dev/null 2>&1
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if [ $? -ne 0 ];then
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echo "SKIP: Could not run test without ip tool"
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exit $ksft_skip
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fi
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trap cleanup EXIT
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ip netns add $ns1 || exit $ksft_skip
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ip -net $ns1 link set lo up
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ip netns exec $ns1 sysctl -q net.mptcp.enabled=1
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check()
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{
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local cmd="$1"
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local expected="$2"
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local msg="$3"
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local out=`$cmd 2>$err`
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local cmd_ret=$?
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printf "%-50s %s" "$msg"
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if [ $cmd_ret -ne 0 ]; then
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echo "[FAIL] command execution '$cmd' stderr "
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cat $err
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ret=1
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elif [ "$out" = "$expected" ]; then
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echo "[ OK ]"
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else
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echo -n "[FAIL] "
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echo "expected '$expected' got '$out'"
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ret=1
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fi
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}
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check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "defaults addr list"
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check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
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subflows 0" "defaults limits"
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.2 flags subflow dev lo
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3 flags signal,backup
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check "ip netns exec $ns1 ./pm_nl_ctl get 1" "id 1 flags 10.0.1.1 " "simple add/get addr"
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check "ip netns exec $ns1 ./pm_nl_ctl dump" \
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"id 1 flags 10.0.1.1
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id 2 flags subflow dev lo 10.0.1.2
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id 3 flags signal,backup 10.0.1.3 " "dump addrs"
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ip netns exec $ns1 ./pm_nl_ctl del 2
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check "ip netns exec $ns1 ./pm_nl_ctl get 2" "" "simple del addr"
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check "ip netns exec $ns1 ./pm_nl_ctl dump" \
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"id 1 flags 10.0.1.1
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id 3 flags signal,backup 10.0.1.3 " "dump addrs after del"
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3
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check "ip netns exec $ns1 ./pm_nl_ctl get 4" "" "duplicate addr"
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.4 id 10 flags signal
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check "ip netns exec $ns1 ./pm_nl_ctl get 4" "id 4 flags signal 10.0.1.4 " "id addr increment"
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for i in `seq 5 9`; do
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.$i flags signal >/dev/null 2>&1
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done
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check "ip netns exec $ns1 ./pm_nl_ctl get 9" "id 9 flags signal 10.0.1.9 " "hard addr limit"
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check "ip netns exec $ns1 ./pm_nl_ctl get 10" "" "above hard addr limit"
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for i in `seq 9 256`; do
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ip netns exec $ns1 ./pm_nl_ctl del $i
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ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.9
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done
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check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags 10.0.1.1
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id 3 flags signal,backup 10.0.1.3
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id 4 flags signal 10.0.1.4
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id 5 flags signal 10.0.1.5
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id 6 flags signal 10.0.1.6
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id 7 flags signal 10.0.1.7
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id 8 flags signal 10.0.1.8 " "id limit"
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ip netns exec $ns1 ./pm_nl_ctl flush
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check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "flush addrs"
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ip netns exec $ns1 ./pm_nl_ctl limits 9 1
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check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
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subflows 0" "rcv addrs above hard limit"
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ip netns exec $ns1 ./pm_nl_ctl limits 1 9
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check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
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subflows 0" "subflows above hard limit"
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ip netns exec $ns1 ./pm_nl_ctl limits 8 8
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check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 8
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subflows 8" "set limits"
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exit $ret

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