cmsg_time.sh

  1#!/bin/bash
  2# SPDX-License-Identifier: GPL-2.0
  3
  4source lib.sh
  5
  6IP4=172.16.0.1/24
  7TGT4=172.16.0.2
  8IP6=2001:db8:1::1/64
  9TGT6=2001:db8:1::2
 10
 11cleanup()
 12{
 13    cleanup_ns $NS
 14}
 15
 16trap cleanup EXIT
 17
 18# Namespaces
 19setup_ns NS
 20
 21ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
 22
 23# Connectivity
 24ip -netns $NS link add type dummy
 25ip -netns $NS link set dev dummy0 up
 26ip -netns $NS addr add $IP4 dev dummy0
 27ip -netns $NS addr add $IP6 dev dummy0
 28
 29# Need FQ for TXTIME
 30ip netns exec $NS tc qdisc replace dev dummy0 root fq
 31
 32# Test
 33BAD=0
 34TOTAL=0
 35
 36check_result() {
 37    local ret=$1
 38    local got=$2
 39    local exp=$3
 40    local case=$4
 41    local xfail=$5
 42    local xf=
 43    local inc=
 44
 45    if [ "$xfail" == "xfail" ]; then
 46	xf="(XFAIL)"
 47	inc=0
 48    else
 49	inc=1
 50    fi
 51
 52    ((TOTAL++))
 53    if [ $ret -ne 0 ]; then
 54	echo "  Case $case returned $ret, expected 0 $xf"
 55	((BAD+=inc))
 56    elif [ "$2" != "$3" ]; then
 57	echo "  Case $case returned '$got', expected '$exp' $xf"
 58	((BAD+=inc))
 59    fi
 60}
 61
 62for i in "-4 $TGT4" "-6 $TGT6"; do
 63    for p in u i r; do
 64	[ $p == "u" ] && prot=UDPv${i:1:2}
 65	[ $p == "i" ] && prot=ICMPv${i:1:2}
 66	[ $p == "r" ] && prot=RAWv${i:1:2}
 67
 68	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234)
 69	check_result $? "$ts" "" "$prot - no options"
 70
 71	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t | wc -l)
 72	check_result $? "$ts" "2" "$prot - ts cnt"
 73	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
 74		 sed -n "s/.*SCHED ts0 [0-9].*/OK/p")
 75	check_result $? "$ts" "OK" "$prot - ts0 SCHED"
 76	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
 77		 sed -n "s/.*SND ts0 [0-9].*/OK/p")
 78	check_result $? "$ts" "OK" "$prot - ts0 SND"
 79
 80	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
 81		 awk '/SND/ { if ($3 > 1000) print "OK"; }')
 82	check_result $? "$ts" "OK" "$prot - TXTIME abs"
 83
 84	[ "$KSFT_MACHINE_SLOW" = yes ] && xfail=xfail
 85
 86	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
 87		 awk '/SND/ {snd=$3}
 88		      /SCHED/ {sch=$3}
 89		      END { if (snd - sch > 500) print "OK";
 90			    else print snd, "-", sch, "<", 500; }')
 91	check_result $? "$ts" "OK" "$prot - TXTIME rel" $xfail
 92    done
 93done
 94
 95# Summary
 96if [ $BAD -ne 0 ]; then
 97    echo "FAIL - $BAD/$TOTAL cases failed"
 98    exit 1
 99else
100    echo "OK"
101    exit 0
102fi