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Make a permanet neighbor cache to avoid sending an NS packet disturbing the test

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A receiver of an ICMPv6 request packet creates a stale cache entry and it turns
into the delay state on replying the packet.  After 5 second, the receiver sends
an NS packet as a reachability confirmation, which disturbs the test and causes
a unexpected result.

Should fix PR misc/54451
This commit is contained in:
ozaki-r 2019-08-13 07:20:43 +00:00
parent 48ffb757ab
commit caa310059a
1 changed files with 21 additions and 5 deletions
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26
tests/net/ndp/t_ndp.sh
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@ -1,4 +1,4 @@
# $NetBSD: t_ndp.sh,v 1.33 2019/07/18 04:00:09 ozaki-r Exp $
# $NetBSD: t_ndp.sh,v 1.34 2019/08/13 07:20:43 ozaki-r Exp $
#
# Copyright (c) 2015 The NetBSD Foundation, Inc.
# All rights reserved.
@ -114,6 +114,7 @@ get_timeout()
ndp_cache_expiration_body()
{
local macaddr=
rump_server_start $SOCKSRC netinet6
rump_server_start $SOCKDST netinet6
@ -121,12 +122,19 @@ ndp_cache_expiration_body()
setup_dst_server
setup_src_server
export RUMP_SERVER=$SOCKSRC
# Shorten the expire time of cache entries
export RUMP_SERVER=$SOCKSRC
atf_check -s exit:0 -o match:'basereachable=7s0ms' \
rump.ndp -i shmif0 basereachable=7000
# Make a permanent cache entry to avoid sending an NS packet disturbing
# the test
macaddr=$(get_macaddr $SOCKSRC shmif0)
export RUMP_SERVER=$SOCKDST
atf_check -s exit:0 -o ignore rump.ndp -s $IP6SRC $macaddr
export RUMP_SERVER=$SOCKSRC
#
# Check if a cache is expired expectedly
#
@ -710,6 +718,7 @@ wait_until_stalled()
ndp_cache_state_body()
{
local macaddr=
rump_server_start $SOCKSRC netinet6
rump_server_start $SOCKDST netinet6
@ -717,12 +726,19 @@ ndp_cache_state_body()
setup_dst_server
setup_src_server
export RUMP_SERVER=$SOCKSRC
# Shorten the expire time of cache entries
export RUMP_SERVER=$SOCKSRC
atf_check -s exit:0 -o match:'basereachable=7s0ms' \
rump.ndp -i shmif0 basereachable=7000
# Make a permanent cache entry to avoid sending an NS packet disturbing
# the test
macaddr=$(get_macaddr $SOCKSRC shmif0)
export RUMP_SERVER=$SOCKDST
atf_check -s exit:0 -o ignore rump.ndp -s $IP6SRC $macaddr
export RUMP_SERVER=$SOCKSRC
#
# Reachability confirmation (RFC 4861 7.3.3)
#