[src/trunk]: src/tests/net/arp Add tests for GARP without DAD

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2d90c5239afa
branches:  trunk
changeset: 360903:2d90c5239afa
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Fri Apr 06 09:23:36 2018 +0000

description:
Add tests for GARP without DAD

Additionally make the existing tests for GARP more explicit.

diffstat:

 tests/net/arp/t_arp.sh |  93 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 82 insertions(+), 11 deletions(-)

diffs (164 lines):

diff -r 9974644cee51 -r 2d90c5239afa tests/net/arp/t_arp.sh
--- a/tests/net/arp/t_arp.sh    Fri Apr 06 09:22:38 2018 +0000
+++ b/tests/net/arp/t_arp.sh    Fri Apr 06 09:23:36 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: t_arp.sh,v 1.35 2018/04/06 09:21:57 ozaki-r Exp $
+#      $NetBSD: t_arp.sh,v 1.36 2018/04/06 09:23:36 ozaki-r Exp $
 #
 # Copyright (c) 2015 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -41,6 +41,7 @@
 atf_test_case arp_cache_expiration_10s cleanup
 atf_test_case arp_command cleanup
 atf_test_case arp_garp cleanup
+atf_test_case arp_garp_without_dad cleanup
 atf_test_case arp_cache_overwriting cleanup
 atf_test_case arp_proxy_arp_pub cleanup
 atf_test_case arp_proxy_arp_pubproxy cleanup
@@ -71,6 +72,13 @@
        atf_set "require.progs" "rump_server"
 }
 
+arp_garp_without_dad_head()
+{
+
+       atf_set "descr" "Tests for GARP with DAD disabled"
+       atf_set "require.progs" "rump_server"
+}
+
 arp_cache_overwriting_head()
 {
        atf_set "descr" "Tests for behavior of overwriting ARP caches"
@@ -297,45 +305,100 @@
        echo $pkt
 }
 
-arp_garp_body()
+test_garp_common()
 {
+       local no_dad=$1
        local pkt=
 
        rump_server_start $SOCKSRC
 
        export RUMP_SERVER=$SOCKSRC
 
+       if $no_dad; then
+               atf_check -s exit:0 -o match:'3 -> 0' \
+                   rump.sysctl -w net.inet.ip.dad_count=0
+       fi
+
        # Setup an interface
        rump_server_add_iface $SOCKSRC shmif0 bus1
        atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.1/24
-       atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.2/24 alias
        atf_check -s exit:0 rump.ifconfig shmif0 up
        $DEBUG && rump.ifconfig shmif0
 
        atf_check -s exit:0 sleep 1
        extract_new_packets bus1 > ./out
 
+       #
+       # Assign an address to an interface without IFF_UP
+       #
        # A GARP packet is sent for the primary address
        pkt=$(make_pkt_str_arpreq 10.0.0.1 10.0.0.1)
        atf_check -s exit:0 -o match:"$pkt" cat ./out
-       # No GARP packet is sent for the alias address
+
+       atf_check -s exit:0 rump.ifconfig shmif0 down
+       atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.2/24 alias
+
+       atf_check -s exit:0 sleep 1
+       extract_new_packets bus1 > ./out
+
+       # A GARP packet is sent for the alias address
        pkt=$(make_pkt_str_arpreq 10.0.0.2 10.0.0.2)
-       atf_check -s exit:0 -o not-match:"$pkt" cat ./out
+       atf_check -s exit:0 -o match:"$pkt" cat ./out
+
+       # Clean up
+       atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.1/24 delete
+       atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.2/24 delete
+
+       #
+       # Assign an address to an interface with IFF_UP
+       #
+       atf_check -s exit:0 rump.ifconfig shmif0 up
+
+       # Primary address
+       atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.3/24
 
-       atf_check -s exit:0 rump.ifconfig -w 10
-       atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.3/24
+       atf_check -s exit:0 sleep 1
+       extract_new_packets bus1 > ./out
+
+       pkt=$(make_pkt_str_arpreq 10.0.0.3 10.0.0.3)
+       if $no_dad; then
+               # A GARP packet is sent
+               atf_check -s exit:0 -o match:"$pkt" cat ./out
+       else
+               # No GARP packet is sent
+               atf_check -s exit:0 -o not-match:"$pkt" cat ./out
+       fi
+
+       # Alias address
        atf_check -s exit:0 rump.ifconfig shmif0 inet 10.0.0.4/24 alias
 
-       # No GARP packets are sent during IFF_UP
+       atf_check -s exit:0 sleep 1
        extract_new_packets bus1 > ./out
-       pkt=$(make_pkt_str_arpreq 10.0.0.3 10.0.0.3)
-       atf_check -s exit:0 -o not-match:"$pkt" cat ./out
+
        pkt=$(make_pkt_str_arpreq 10.0.0.4 10.0.0.4)
-       atf_check -s exit:0 -o not-match:"$pkt" cat ./out
+       if $no_dad; then
+               # A GARP packet is sent
+               atf_check -s exit:0 -o match:"$pkt" cat ./out
+       else
+               # No GARP packet is sent
+               atf_check -s exit:0 -o not-match:"$pkt" cat ./out
+       fi
 
        rump_server_destroy_ifaces
 }
 
+arp_garp_body()
+{
+
+       test_garp_common false
+}
+
+arp_garp_without_dad_body()
+{
+
+       test_garp_common true
+}
+
 arp_cache_overwriting_body()
 {
        local bonus=2
@@ -583,6 +646,13 @@
        cleanup
 }
 
+arp_garp_without_dad_cleanup()
+{
+
+       $DEBUG && dump
+       cleanup
+}
+
 arp_cache_overwriting_cleanup()
 {
        $DEBUG && dump
@@ -879,6 +949,7 @@
        atf_add_test_case arp_cache_expiration_10s
        atf_add_test_case arp_command
        atf_add_test_case arp_garp
+       atf_add_test_case arp_garp_without_dad
        atf_add_test_case arp_cache_overwriting
        atf_add_test_case arp_proxy_arp_pub
        atf_add_test_case arp_proxy_arp_pubproxy