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selftests: net: test standard socket cmsgs across UDP and ICMP sockets

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Test TIMESTAMPING and TXTIME across UDP / ICMP and IP versions.

Before ICMPv6 support:
  # ./tools/testing/selftests/net/cmsg_time.sh
    Case ICMPv6  - ts cnt returned '0', expected '2'
    Case ICMPv6  - ts0 SCHED returned '', expected 'OK'
    Case ICMPv6  - ts0 SND returned '', expected 'OK'
    Case ICMPv6  - TXTIME abs returned '', expected 'OK'
    Case ICMPv6  - TXTIME rel returned '', expected 'OK'
  FAIL - 5/36 cases failed

After:
  # ./tools/testing/selftests/net/cmsg_time.sh
  OK

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2022-02-09 16:36:49 -08:00 committed by David S. Miller
parent eb8f3116fb
commit af6ca20591
2 changed files with 84 additions and 0 deletions
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1
tools/testing/selftests/net/Makefile
View File

@ -30,6 +30,7 @@ TEST_PROGS += ioam6.sh
TEST_PROGS += gro.sh
TEST_PROGS += gre_gso.sh
TEST_PROGS += cmsg_so_mark.sh
TEST_PROGS += cmsg_time.sh
TEST_PROGS += srv6_end_dt46_l3vpn_test.sh
TEST_PROGS += srv6_end_dt4_l3vpn_test.sh
TEST_PROGS += srv6_end_dt6_l3vpn_test.sh

83
tools/testing/selftests/net/cmsg_time.sh Executable file
View File

@ -0,0 +1,83 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
NS=ns
IP4=172.16.0.1/24
TGT4=172.16.0.2
IP6=2001:db8:1::1/64
TGT6=2001:db8:1::2
cleanup()
{
ip netns del $NS
}
trap cleanup EXIT
# Namespaces
ip netns add $NS
ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
# Connectivity
ip -netns $NS link add type dummy
ip -netns $NS link set dev dummy0 up
ip -netns $NS addr add $IP4 dev dummy0
ip -netns $NS addr add $IP6 dev dummy0
# Need FQ for TXTIME
ip netns exec $NS tc qdisc replace dev dummy0 root fq
# Test
BAD=0
TOTAL=0
check_result() {
((TOTAL++))
if [ $1 -ne 0 ]; then
echo " Case $4 returned $1, expected 0"
((BAD++))
elif [ "$2" != "$3" ]; then
echo " Case $4 returned '$2', expected '$3'"
((BAD++))
fi
}
for i in "-4 $TGT4" "-6 $TGT6"; do
for p in u i r; do
[ $p == "u" ] && prot=UDPv${i:1:2}
[ $p == "i" ] && prot=ICMPv${i:1:2}
[ $p == "r" ] && prot=RAWv${i:1:2}
ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234)
check_result $? "$ts" "" "$prot - no options"
ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t | wc -l)
check_result $? "$ts" "2" "$prot - ts cnt"
ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
sed -n "s/.*SCHED ts0 [0-9].*/OK/p")
check_result $? "$ts" "OK" "$prot - ts0 SCHED"
ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
sed -n "s/.*SND ts0 [0-9].*/OK/p")
check_result $? "$ts" "OK" "$prot - ts0 SND"
ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
awk '/SND/ { if ($3 > 1000) print "OK"; }')
check_result $? "$ts" "OK" "$prot - TXTIME abs"
ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
awk '/SND/ {snd=$3}
/SCHED/ {sch=$3}
END { if (snd - sch > 500) print "OK"; }')
check_result $? "$ts" "OK" "$prot - TXTIME rel"
done
done
# Summary
if [ $BAD -ne 0 ]; then
echo "FAIL - $BAD/$TOTAL cases failed"
exit 1
else
echo "OK"
exit 0
fi