[src/trunk]: src/tests/net/carp Add a test case for CARP on IPv6

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

details:   https://anonhg.NetBSD.org/src/rev/7e7a7040941e
branches:  trunk
changeset: 351797:7e7a7040941e
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Mon Feb 27 07:24:26 2017 +0000

description:
Add a test case for CARP on IPv6

The test case fails expectedly because the implementation of CARP on IPv6
is incomplete yet.

diffstat:

 tests/net/carp/t_basic.sh |  149 ++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 143 insertions(+), 6 deletions(-)

diffs (189 lines):

diff -r ad8514d15ed7 -r 7e7a7040941e tests/net/carp/t_basic.sh
--- a/tests/net/carp/t_basic.sh Mon Feb 27 07:11:06 2017 +0000
+++ b/tests/net/carp/t_basic.sh Mon Feb 27 07:24:26 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: t_basic.sh,v 1.1 2017/01/16 08:18:11 ozaki-r Exp $
+#      $NetBSD: t_basic.sh,v 1.2 2017/02/27 07:24:26 ozaki-r Exp $
 #
 # Copyright (c) 2017 Internet Initiative Japan Inc.
 # All rights reserved.
@@ -29,14 +29,9 @@
 SOCK_MASTER=unix://carp_master
 SOCK_BACKUP=unix://carp_backup
 BUS=bus_carp
-IP_CLIENT=10.1.1.240
-IP_MASTER=10.1.1.1
-IP_BACKUP=10.1.1.2
-IP_CARP=10.1.1.100
 TIMEOUT=3
 
 atf_test_case carp_handover cleanup
-
 carp_handover_head()
 {
 
@@ -44,6 +39,11 @@
        atf_set "require.progs" "rump_server"
 }
 
+IP_CLIENT=10.1.1.240
+IP_MASTER=10.1.1.1
+IP_BACKUP=10.1.1.2
+IP_CARP=10.1.1.100
+
 setup_carp()
 {
        local sock=$1
@@ -61,6 +61,10 @@
        fi
 
        export RUMP_SERVER=$sock
+       if $DEBUG; then
+               atf_check -s exit:0 -o match:'0.->.1' \
+                   rump.sysctl -w net.inet.carp.log=1
+       fi
        atf_check -s exit:0 rump.ifconfig $carpif create
        atf_check -s exit:0 rump.ifconfig shmif0 $ip/24 up
        atf_check -s exit:0 rump.ifconfig $carpif \
@@ -158,8 +162,141 @@
        cleanup
 }
 
+atf_test_case carp6_handover cleanup
+carp6_handover_head()
+{
+
+       atf_set "descr" "Tests for CARP handover (IPv6)"
+       atf_set "require.progs" "rump_server"
+}
+
+IP6_CLIENT=fd00:1::240
+IP6_MASTER=fd00:1::1
+IP6_BACKUP=fd00:1::2
+IP6_CARP=fd00:1::100
+
+setup_carp6()
+{
+       local sock=$1
+       local master=$2
+       local carpif= ip= advskew=
+
+       if $master; then
+               carpif=carp0
+               ip=$IP6_MASTER
+               advskew=0
+       else
+               carpif=carp1
+               ip=$IP6_BACKUP
+               advskew=200
+       fi
+
+       export RUMP_SERVER=$sock
+       if $DEBUG; then
+               atf_check -s exit:0 -o match:'0.->.1' \
+                   rump.sysctl -w net.inet.carp.log=1
+       fi
+       atf_check -s exit:0 rump.ifconfig $carpif create
+       atf_check -s exit:0 rump.ifconfig shmif0 inet6 $ip up
+       atf_check -s exit:0 rump.ifconfig $carpif inet6 \
+           vhid 175 advskew $advskew advbase 1 pass s3cret $IP6_CARP
+       atf_check -s exit:0 rump.ifconfig -w 10
+}
+
+wait_carp6_handover()
+{
+       local i=0
+
+       export RUMP_SERVER=$SOCK_CLIENT
+
+       while [ $i -ne 5 ]; do
+               $DEBUG && echo "Trying ping6 $IP6_CARP"
+               rump.ping6 -n -X 1 -c 1 $IP6_CARP >/dev/null
+               if [ $? = 0 ]; then
+                       $DEBUG && echo "Passed ping $IP6_CARP"
+                       break;
+               fi
+               $DEBUG && echo "Failed ping6 $IP6_CARP"
+               i=$((i + 1))
+       done
+
+       if [ $i -eq 5 ]; then
+               atf_fail "Failed to failover (5 sec)"
+       fi
+}
+
+carp6_handover_body()
+{
+
+       atf_expect_fail 'The implementation of CARP on IPv6 is incomplete yet.'
+
+       rump_server_start $SOCK_CLIENT netinet6
+       rump_server_start $SOCK_MASTER netinet6
+       rump_server_start $SOCK_BACKUP netinet6
+
+       rump_server_add_iface $SOCK_CLIENT shmif0 $BUS
+       rump_server_add_iface $SOCK_MASTER shmif0 $BUS
+       rump_server_add_iface $SOCK_BACKUP shmif0 $BUS
+
+       setup_carp6 $SOCK_MASTER true
+       setup_carp6 $SOCK_BACKUP false
+
+       export RUMP_SERVER=$SOCK_CLIENT
+       atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_CLIENT up
+       atf_check -s exit:0 rump.ifconfig -w 10
+
+       # Check that the primary addresses are up
+       atf_check -s exit:0 -o ignore \
+           rump.ping6 -n -X $TIMEOUT -c 1 $IP6_MASTER
+       atf_check -s exit:0 -o ignore \
+           rump.ping6 -n -X $TIMEOUT -c 1 $IP6_BACKUP
+
+       # Give carp a while to croak
+       sleep 4
+
+       # Check state
+       export RUMP_SERVER=$SOCK_MASTER
+       $DEBUG && rump.ifconfig
+       atf_check -s exit:0 -o match:'carp: MASTER carpdev shmif0' \
+           rump.ifconfig carp0
+       export RUMP_SERVER=$SOCK_BACKUP
+       $DEBUG && rump.ifconfig
+       atf_check -s exit:0 -o match:'carp: BACKUP carpdev shmif0' \
+           rump.ifconfig carp1
+       export RUMP_SERVER=$SOCK_CLIENT
+
+       # Check that the shared IP works
+       atf_check -s exit:0 -o ignore \
+           rump.ping6 -n -X $TIMEOUT -c 1 $IP6_CARP
+
+       # KILLING SPREE
+       env RUMP_SERVER=$SOCK_MASTER rump.halt
+       sleep 1
+
+       # Check that primary is now dead
+       atf_check -s not-exit:0 -o ignore \
+           rump.ping6 -n -X $TIMEOUT -c 1 $IP6_MASTER
+
+       # Do it in installments. carp will cluck meanwhile
+       wait_carp6_handover
+
+       # Check state
+       export RUMP_SERVER=$SOCK_BACKUP
+       $DEBUG && rump.ifconfig
+       atf_check -s exit:0 -o match:'carp: MASTER carpdev shmif0' \
+           rump.ifconfig carp1
+}
+
+carp6_handover_cleanup()
+{
+
+       $DEBUG && dump
+       cleanup
+}
+
 atf_init_test_cases()
 {
 
        atf_add_test_case carp_handover
+       atf_add_test_case carp6_handover
 }