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      1 #!/bin/sh
      2 # Copyright (c) 2016 Oracle and/or its affiliates. All Rights Reserved.
      3 # Copyright (c) International Business Machines  Corp., 2000
      4 # This program is free software; you can redistribute it and/or
      5 # modify it under the terms of the GNU General Public License as
      6 # published by the Free Software Foundation; either version 2 of
      7 # the License, or (at your option) any later version.
      8 #
      9 # This program is distributed in the hope that it would be useful,
     10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12 # GNU General Public License for more details.
     13 #
     14 # You should have received a copy of the GNU General Public License
     15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
     16 #
     17 # Test basic functionality of 'arp' and 'ip neigh'.
     18 
     19 TCID=ipneigh01
     20 NUMLOOPS=${NUMLOOPS:-50}
     21 TST_TOTAL=2
     22 . test_net.sh
     23 
     24 do_setup()
     25 {
     26 	tst_require_root
     27 	tst_check_cmds ip arp grep ping$TST_IPV6
     28 }
     29 
     30 do_test()
     31 {
     32 	local arp_show_cmd="$1"
     33 	local arp_del_cmd="$2"
     34 
     35 	local entry_name
     36 	[ "$TST_IPV6" ] && entry_name="NDISC" || entry_name="ARP"
     37 
     38 	tst_resm TINFO "Stress auto-creation of $entry_name cache entry"
     39 	tst_resm TINFO "by pinging '$rhost' and deleting entry again"
     40 	tst_resm TINFO "with '$arp_del_cmd'"
     41 
     42 	for i in $(seq 1 $NUMLOOPS); do
     43 
     44 		ping$TST_IPV6 -q -c1 $rhost > /dev/null
     45 
     46 		local k
     47 		local ret=1
     48 		# wait for arp entry at least 3 seconds
     49 		for k in $(seq 1 30); do
     50 			$arp_show_cmd | grep -q $rhost
     51 			if [ $? -eq 0 ]; then
     52 				ret=0
     53 				break;
     54 			fi
     55 			tst_sleep 100ms
     56 		done
     57 
     58 		[ "$ret" -ne 0 ] && \
     59 			tst_brkm TFAIL "$entry_name entry '$rhost' not listed"
     60 
     61 		$arp_del_cmd
     62 
     63 		$arp_show_cmd | grep -q "${rhost}.*$(tst_hwaddr rhost)" && \
     64 			tst_brkm TFAIL "'$arp_del_cmd' failed, entry has " \
     65 				       "$(tst_hwaddr rhost)' $i/$NUMLOOPS"
     66 	done
     67 
     68 	tst_resm TPASS "verified adding/removing of $entry_name cache entry"
     69 }
     70 
     71 do_setup
     72 
     73 rhost=$(tst_ipaddr rhost)
     74 
     75 if [ -z "$TST_IPV6" ]; then
     76 	do_test "arp -a" "arp -d $rhost"
     77 else
     78 	tst_resm TCONF "'arp cmd doesn't support IPv6, skipping test-case"
     79 fi
     80 
     81 do_test "ip neigh show" "ip neigh del $rhost dev $(tst_iface)"
     82 
     83 tst_exit
     84