tools/testing/selftests/net/cmsg_time.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 source lib.sh
   5
   6 IP4=172.16.0.1/24
   7 TGT4=172.16.0.2
   8 IP6=2001:db8:1::1/64
   9 TGT6=2001:db8:1::2
  10
  11 cleanup()
  12 {
  13     cleanup_ns $NS
  14 }
  15
  16 trap cleanup EXIT
  17
  18 # Namespaces
  19 setup_ns NS
  20
  21 ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
  22
  23 # Connectivity
  24 ip -netns $NS link add type dummy
  25 ip -netns $NS link set dev dummy0 up
  26 ip -netns $NS addr add $IP4 dev dummy0
  27 ip -netns $NS addr add $IP6 dev dummy0
  28
  29 # Need FQ for TXTIME
  30 ip netns exec $NS tc qdisc replace dev dummy0 root fq
  31
  32 # Test
  33 BAD=0
  34 TOTAL=0
  35
  36 check_result() {
  37     ((TOTAL++))
  38     if [ $1 -ne 0 ]; then
  39         echo "  Case $4 returned $1, expected 0"
  40         ((BAD++))
  41     elif [ "$2" != "$3" ]; then
  42         echo "  Case $4 returned '$2', expected '$3'"
  43         ((BAD++))
  44     fi
  45 }
  46
  47 for i in "-4 $TGT4" "-6 $TGT6"; do
  48     for p in u i r; do
  49         [ $p == "u" ] && prot=UDPv${i:1:2}
  50         [ $p == "i" ] && prot=ICMPv${i:1:2}
  51         [ $p == "r" ] && prot=RAWv${i:1:2}
  52
  53         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234)
  54         check_result $? "$ts" "" "$prot - no options"
  55
  56         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t | wc -l)
  57         check_result $? "$ts" "2" "$prot - ts cnt"
  58         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
  59                  sed -n "s/.*SCHED ts0 [0-9].*/OK/p")
  60         check_result $? "$ts" "OK" "$prot - ts0 SCHED"
  61         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
  62                  sed -n "s/.*SND ts0 [0-9].*/OK/p")
  63         check_result $? "$ts" "OK" "$prot - ts0 SND"
  64
  65         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
  66                  awk '/SND/ { if ($3 > 1000) print "OK"; }')
  67         check_result $? "$ts" "OK" "$prot - TXTIME abs"
  68
  69         [ "$KSFT_MACHINE_SLOW" = yes ] && delay=8000 || delay=1000
  70
  71         ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d $delay |
  72                  awk '/SND/ {snd=$3}
  73                       /SCHED/ {sch=$3}
  74                       END { if (snd - sch > '$((delay/2))') print "OK";
  75                             else print snd, "-", sch, "<", '$((delay/2))'; }')
  76         check_result $? "$ts" "OK" "$prot - TXTIME rel"
  77     done
  78 done
  79
  80 # Summary
  81 if [ $BAD -ne 0 ]; then
  82     echo "FAIL - $BAD/$TOTAL cases failed"
  83     exit 1
  84 else
  85     echo "OK"
  86     exit 0
  87 fi