selftests/net/cmsg_time.sh

0001 #!/bin/bash
0002 # SPDX-License-Identifier: GPL-2.0
0003
0004 NS=ns
0005 IP4=172.16.0.1/24
0006 TGT4=172.16.0.2
0007 IP6=2001:db8:1::1/64
0008 TGT6=2001:db8:1::2
0009
0010 cleanup()
0011 {
0012     ip netns del $NS
0013 }
0014
0015 trap cleanup EXIT
0016
0017 # Namespaces
0018 ip netns add $NS
0019
0020 ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
0021
0022 # Connectivity
0023 ip -netns $NS link add type dummy
0024 ip -netns $NS link set dev dummy0 up
0025 ip -netns $NS addr add $IP4 dev dummy0
0026 ip -netns $NS addr add $IP6 dev dummy0
0027
0028 # Need FQ for TXTIME
0029 ip netns exec $NS tc qdisc replace dev dummy0 root fq
0030
0031 # Test
0032 BAD=0
0033 TOTAL=0
0034
0035 check_result() {
0036     ((TOTAL++))
0037     if [ $1 -ne 0 ]; then
0038         echo "  Case $4 returned $1, expected 0"
0039         ((BAD++))
0040     elif [ "$2" != "$3" ]; then
0041         echo "  Case $4 returned '$2', expected '$3'"
0042         ((BAD++))
0043     fi
0044 }
0045
0046 for i in "-4 $TGT4" "-6 $TGT6"; do
0047     for p in u i r; do
0048         [ $p == "u" ] && prot=UDPv${i:1:2}
0049         [ $p == "i" ] && prot=ICMPv${i:1:2}
0050         [ $p == "r" ] && prot=RAWv${i:1:2}
0051
0052         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234)
0053         check_result $? "$ts" "" "$prot - no options"
0054
0055         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t | wc -l)
0056         check_result $? "$ts" "2" "$prot - ts cnt"
0057         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
0058                  sed -n "s/.*SCHED ts0 [0-9].*/OK/p")
0059         check_result $? "$ts" "OK" "$prot - ts0 SCHED"
0060         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
0061                  sed -n "s/.*SND ts0 [0-9].*/OK/p")
0062         check_result $? "$ts" "OK" "$prot - ts0 SND"
0063
0064         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
0065                  awk '/SND/ { if ($3 > 1000) print "OK"; }')
0066         check_result $? "$ts" "OK" "$prot - TXTIME abs"
0067
0068         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
0069                  awk '/SND/ {snd=$3}
0070                       /SCHED/ {sch=$3}
0071                       END { if (snd - sch > 500) print "OK"; }')
0072         check_result $? "$ts" "OK" "$prot - TXTIME rel"
0073     done
0074 done
0075
0076 # Summary
0077 if [ $BAD -ne 0 ]; then
0078     echo "FAIL - $BAD/$TOTAL cases failed"
0079     exit 1
0080 else
0081     echo "OK"
0082     exit 0
0083 fi