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b9d5f5711d
Slow machines can delay scheduling of the packets for milliseconds. Increase the delay to 8ms if KSFT_MACHINE_SLOW. Try to limit the variability by moving setsockopts earlier (before we read time). This fixes the "TXTIME rel" failures on debug kernels, like: Case ICMPv4 - TXTIME rel returned '', expected 'OK' Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20240510005705.43069-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
88 lines
2.0 KiB
Bash
Executable File
88 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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source lib.sh
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IP4=172.16.0.1/24
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TGT4=172.16.0.2
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IP6=2001:db8:1::1/64
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TGT6=2001:db8:1::2
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cleanup()
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{
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cleanup_ns $NS
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}
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trap cleanup EXIT
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# Namespaces
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setup_ns NS
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ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
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# Connectivity
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ip -netns $NS link add type dummy
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ip -netns $NS link set dev dummy0 up
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ip -netns $NS addr add $IP4 dev dummy0
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ip -netns $NS addr add $IP6 dev dummy0
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# Need FQ for TXTIME
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ip netns exec $NS tc qdisc replace dev dummy0 root fq
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# Test
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BAD=0
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TOTAL=0
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check_result() {
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((TOTAL++))
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if [ $1 -ne 0 ]; then
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echo " Case $4 returned $1, expected 0"
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((BAD++))
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elif [ "$2" != "$3" ]; then
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echo " Case $4 returned '$2', expected '$3'"
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((BAD++))
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fi
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}
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for i in "-4 $TGT4" "-6 $TGT6"; do
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for p in u i r; do
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[ $p == "u" ] && prot=UDPv${i:1:2}
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[ $p == "i" ] && prot=ICMPv${i:1:2}
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[ $p == "r" ] && prot=RAWv${i:1:2}
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ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234)
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check_result $? "$ts" "" "$prot - no options"
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ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t | wc -l)
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check_result $? "$ts" "2" "$prot - ts cnt"
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ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
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sed -n "s/.*SCHED ts0 [0-9].*/OK/p")
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check_result $? "$ts" "OK" "$prot - ts0 SCHED"
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ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
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sed -n "s/.*SND ts0 [0-9].*/OK/p")
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check_result $? "$ts" "OK" "$prot - ts0 SND"
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ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
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awk '/SND/ { if ($3 > 1000) print "OK"; }')
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check_result $? "$ts" "OK" "$prot - TXTIME abs"
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[ "$KSFT_MACHINE_SLOW" = yes ] && delay=8000 || delay=1000
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ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d $delay |
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awk '/SND/ {snd=$3}
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/SCHED/ {sch=$3}
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END { if (snd - sch > '$((delay/2))') print "OK";
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else print snd, "-", sch, "<", '$((delay/2))'; }')
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check_result $? "$ts" "OK" "$prot - TXTIME rel"
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done
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done
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# Summary
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if [ $BAD -ne 0 ]; then
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echo "FAIL - $BAD/$TOTAL cases failed"
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exit 1
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else
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echo "OK"
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exit 0
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fi
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