tools/testing/selftests/net/fib_nexthop_nongw.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # ns: h1               | ns: h2
   5 #   192.168.0.1/24     |
   6 #            eth0      |
   7 #                      |       192.168.1.1/32
   8 #            veth0 <---|---> veth1
   9 # Validate source address selection for route without gateway
  10
  11 source lib.sh
  12 PAUSE_ON_FAIL=no
  13 VERBOSE=0
  14 ret=0
  15
  16 ################################################################################
  17 # helpers
  18
  19 log_test()
  20 {
  21         local rc=$1
  22         local expected=$2
  23         local msg="$3"
  24
  25         if [ ${rc} -eq ${expected} ]; then
  26                 printf "TEST: %-60s  [ OK ]\n" "${msg}"
  27                 nsuccess=$((nsuccess+1))
  28         else
  29                 ret=1
  30                 nfail=$((nfail+1))
  31                 printf "TEST: %-60s  [FAIL]\n" "${msg}"
  32                 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
  33                         echo
  34                         echo "hit enter to continue, 'q' to quit"
  35                         read a
  36                         [ "$a" = "q" ] && exit 1
  37                 fi
  38         fi
  39
  40         [ "$VERBOSE" = "1" ] && echo
  41 }
  42
  43 run_cmd()
  44 {
  45         local cmd="$*"
  46         local out
  47         local rc
  48
  49         if [ "$VERBOSE" = "1" ]; then
  50                 echo "COMMAND: $cmd"
  51         fi
  52
  53         out=$(eval $cmd 2>&1)
  54         rc=$?
  55         if [ "$VERBOSE" = "1" -a -n "$out" ]; then
  56                 echo "$out"
  57         fi
  58
  59         [ "$VERBOSE" = "1" ] && echo
  60
  61         return $rc
  62 }
  63
  64 ################################################################################
  65 # config
  66 setup()
  67 {
  68         setup_ns h1 h2
  69
  70         # Add a fake eth0 to support an ip address
  71         ip -n $h1 link add name eth0 type dummy
  72         ip -n $h1 link set eth0 up
  73         ip -n $h1 address add 192.168.0.1/24 dev eth0
  74
  75         # Configure veths (same @mac, arp off)
  76         ip -n $h1 link add name veth0 type veth peer name veth1 netns $h2
  77         ip -n $h1 link set veth0 up
  78
  79         ip -n $h2 link set veth1 up
  80
  81         # Configure @IP in the peer netns
  82         ip -n $h2 address add 192.168.1.1/32 dev veth1
  83         ip -n $h2 route add default dev veth1
  84
  85         # Add a nexthop without @gw and use it in a route
  86         ip -n $h1 nexthop add id 1 dev veth0
  87         ip -n $h1 route add 192.168.1.1 nhid 1
  88 }
  89
  90 cleanup()
  91 {
  92         cleanup_ns $h1 $h2
  93 }
  94
  95 trap cleanup EXIT
  96
  97 ################################################################################
  98 # main
  99
 100 while getopts :pv o
 101 do
 102         case $o in
 103                 p) PAUSE_ON_FAIL=yes;;
 104                 v) VERBOSE=1;;
 105         esac
 106 done
 107
 108 setup
 109
 110 run_cmd ip -netns $h1 route get 192.168.1.1
 111 log_test $? 0 "nexthop: get route with nexthop without gw"
 112 run_cmd ip netns exec $h1 ping -c1 192.168.1.1
 113 log_test $? 0 "nexthop: ping through nexthop without gw"
 114
 115 exit $ret