tools/testing/selftests/bpf/test_sock_addr.sh

   1 #!/bin/sh
   2
   3 set -eu
   4
   5 ping_once()
   6 {
   7         type ping${1} >/dev/null 2>&1 && PING="ping${1}" || PING="ping -${1}"
   8         $PING -q -c 1 -W 1 ${2%%/*} >/dev/null 2>&1
   9 }
  10
  11 wait_for_ip()
  12 {
  13         local _i
  14         echo -n "Wait for testing IPv4/IPv6 to become available "
  15         for _i in $(seq ${MAX_PING_TRIES}); do
  16                 echo -n "."
  17                 if ping_once 4 ${TEST_IPv4} && ping_once 6 ${TEST_IPv6}; then
  18                         echo " OK"
  19                         return
  20                 fi
  21         done
  22         echo 1>&2 "ERROR: Timeout waiting for test IP to become available."
  23         exit 1
  24 }
  25
  26 setup()
  27 {
  28         # Create testing interfaces not to interfere with current environment.
  29         ip link add dev ${TEST_IF} type veth peer name ${TEST_IF_PEER}
  30         ip link set ${TEST_IF} up
  31         ip link set ${TEST_IF_PEER} up
  32
  33         ip -4 addr add ${TEST_IPv4} dev ${TEST_IF}
  34         ip -6 addr add ${TEST_IPv6} dev ${TEST_IF}
  35         wait_for_ip
  36 }
  37
  38 cleanup()
  39 {
  40         ip link del ${TEST_IF} 2>/dev/null || :
  41         ip link del ${TEST_IF_PEER} 2>/dev/null || :
  42 }
  43
  44 main()
  45 {
  46         trap cleanup EXIT 2 3 6 15
  47         setup
  48         ./test_sock_addr setup_done
  49 }
  50
  51 BASENAME=$(basename $0 .sh)
  52 TEST_IF="${BASENAME}1"
  53 TEST_IF_PEER="${BASENAME}2"
  54 TEST_IPv4="127.0.0.4/8"
  55 TEST_IPv6="::6/128"
  56 MAX_PING_TRIES=5
  57
  58 main