tools/testing/selftests/bpf/test_sock_addr.sh

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