Module Name:    src
Committed By:   ozaki-r
Date:           Fri Jun 28 06:46:04 UTC 2019

Modified Files:
        src/tests/net/ndp: t_ndp.sh

Log Message:
tests: test state transitions of neighbor caches


To generate a diff of this commit:
cvs rdiff -u -r1.31 -r1.32 src/tests/net/ndp/t_ndp.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/tests/net/ndp/t_ndp.sh
diff -u src/tests/net/ndp/t_ndp.sh:1.31 src/tests/net/ndp/t_ndp.sh:1.32
--- src/tests/net/ndp/t_ndp.sh:1.31	Thu Mar 22 09:21:24 2018
+++ src/tests/net/ndp/t_ndp.sh	Fri Jun 28 06:46:04 2019
@@ -1,4 +1,4 @@
-#	$NetBSD: t_ndp.sh,v 1.31 2018/03/22 09:21:24 ozaki-r Exp $
+#	$NetBSD: t_ndp.sh,v 1.32 2019/06/28 06:46:04 ozaki-r Exp $
 #
 # Copyright (c) 2015 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -673,6 +673,81 @@ ndp_stray_entries_cleanup()
 	cleanup
 }
 
+atf_test_case ndp_cache_state cleanup
+ndp_stray_entries_head()
+{
+
+	atf_set "descr" "Tests states of neighbor cache entries"
+	atf_set "require.progs" "rump_server"
+}
+
+check_cache_state()
+{
+	local dst=$1
+	local state=$2
+
+	$DEBUG && rump.ndp -n $dst
+	atf_check -s exit:0 -o match:"^$dst.*$state " rump.ndp -n $dst
+}
+
+wait_until_stalled()
+{
+	local dst=$1
+	local state=$2
+
+	$DEBUG && rump.ndp -n $dst
+	while true; do
+		 rump.ndp -n $dst | grep -q "^$dst.*S " && break
+		 sleep 1
+	done
+	$DEBUG && rump.ndp -n $dst
+}
+
+ndp_cache_state_body()
+{
+
+	rump_server_start $SOCKSRC netinet6
+	rump_server_start $SOCKDST netinet6
+
+	setup_dst_server
+	setup_src_server
+
+	export RUMP_SERVER=$SOCKSRC
+
+	#
+	# Reachability confirmation (RFC 4861 7.3.3)
+	#
+	atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST
+
+	# Receiving a solicited NA packet changes the state of the cache to REACHABLE
+	check_cache_state $IP6DST R
+
+	# The state of the cache transits to STALE after a while
+	wait_until_stalled $IP6DST
+
+	# Sending a packet on the cache will run a reachability confirmation
+	atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST
+
+	sleep 1
+
+	# The state of the cache is changed to DELAY and stay for 5s, then
+	# send a NS packet and change the state to PROBE
+	check_cache_state $IP6DST D
+
+	sleep $((5 + 1))
+
+	# If the reachability confirmation is success, the state of the cache
+	# is changed to REACHABLE
+	check_cache_state $IP6DST R
+}
+
+ndp_cache_state_cleanup()
+{
+
+	$DEBUG && dump
+	cleanup
+}
+
 atf_init_test_cases()
 {
 	atf_add_test_case ndp_cache_expiration
@@ -685,4 +760,5 @@ atf_init_test_cases()
 	atf_add_test_case ndp_purge_on_route_delete
 	atf_add_test_case ndp_purge_on_ifdown
 	atf_add_test_case ndp_stray_entries
+	atf_add_test_case ndp_cache_state
 }

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