tools/testing/selftests/net/so_txtime.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Regression tests for the SO_TXTIME interface
   5
   6 set -e
   7
   8 readonly ksft_skip=4
   9 readonly DEV="veth0"
  10 readonly BIN="./so_txtime"
  11
  12 readonly RAND="$(mktemp -u XXXXXX)"
  13 readonly NSPREFIX="ns-${RAND}"
  14 readonly NS1="${NSPREFIX}1"
  15 readonly NS2="${NSPREFIX}2"
  16
  17 readonly SADDR4='192.168.1.1'
  18 readonly DADDR4='192.168.1.2'
  19 readonly SADDR6='fd::1'
  20 readonly DADDR6='fd::2'
  21
  22 cleanup() {
  23         ip netns del "${NS2}"
  24         ip netns del "${NS1}"
  25 }
  26
  27 trap cleanup EXIT
  28
  29 # Create virtual ethernet pair between network namespaces
  30 ip netns add "${NS1}"
  31 ip netns add "${NS2}"
  32
  33 ip link add "${DEV}" netns "${NS1}" type veth \
  34   peer name "${DEV}" netns "${NS2}"
  35
  36 # Bring the devices up
  37 ip -netns "${NS1}" link set "${DEV}" up
  38 ip -netns "${NS2}" link set "${DEV}" up
  39
  40 # Set fixed MAC addresses on the devices
  41 ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
  42 ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
  43
  44 # Add fixed IP addresses to the devices
  45 ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}"
  46 ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}"
  47 ip -netns "${NS1}" addr add       fd::1/64 dev "${DEV}" nodad
  48 ip -netns "${NS2}" addr add       fd::2/64 dev "${DEV}" nodad
  49
  50 run_test() {
  51         local readonly IP="$1"
  52         local readonly CLOCK="$2"
  53         local readonly TXARGS="$3"
  54         local readonly RXARGS="$4"
  55
  56         if [[ "${IP}" == "4" ]]; then
  57                 local readonly SADDR="${SADDR4}"
  58                 local readonly DADDR="${DADDR4}"
  59         elif [[ "${IP}" == "6" ]]; then
  60                 local readonly SADDR="${SADDR6}"
  61                 local readonly DADDR="${DADDR6}"
  62         else
  63                 echo "Invalid IP version ${IP}"
  64                 exit 1
  65         fi
  66
  67         local readonly START="$(date +%s%N --date="+ 0.1 seconds")"
  68
  69         ip netns exec "${NS2}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${RXARGS}" -r &
  70         ip netns exec "${NS1}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${TXARGS}"
  71         wait "$!"
  72 }
  73
  74 do_test() {
  75         run_test $@
  76         [ $? -ne 0 ] && ret=1
  77 }
  78
  79 do_fail_test() {
  80         run_test $@
  81         [ $? -eq 0 ] && ret=1
  82 }
  83
  84 ip netns exec "${NS1}" tc qdisc add dev "${DEV}" root fq
  85 set +e
  86 ret=0
  87 do_test 4 mono a,-1 a,-1
  88 do_test 6 mono a,0 a,0
  89 do_test 6 mono a,10 a,10
  90 do_test 4 mono a,10,b,20 a,10,b,20
  91 do_test 6 mono a,20,b,10 b,20,a,20
  92
  93 if ip netns exec "${NS1}" tc qdisc replace dev "${DEV}" root etf clockid CLOCK_TAI delta 400000; then
  94         do_fail_test 4 tai a,-1 a,-1
  95         do_fail_test 6 tai a,0 a,0
  96         do_test 6 tai a,10 a,10
  97         do_test 4 tai a,10,b,20 a,10,b,20
  98         do_test 6 tai a,20,b,10 b,10,a,20
  99 else
 100         echo "tc ($(tc -V)) does not support qdisc etf. skipping"
 101         [ $ret -eq 0 ] && ret=$ksft_skip
 102 fi
 103
 104 if [ $ret -eq 0 ]; then
 105         echo OK. All tests passed
 106 elif [[ $ret -ne $ksft_skip && -n "$KSFT_MACHINE_SLOW" ]]; then
 107         echo "Ignoring errors due to slow environment" 1>&2
 108         ret=0
 109 fi
 110 exit $ret