#       $NetBSD: t_vlan.sh,v 1.27 2025/03/18 07:58:09 ozaki-r Exp $
#
# Copyright (c) 2016 Internet Initiative Japan Inc.
# All rights reserved.
#
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# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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BUS=bus
SOCK_LOCAL=unix://commsock1
SOCK_REMOTE=unix://commsock2
IP_LOCAL0=10.0.0.1
IP_LOCAL1=10.0.1.1
IP_REMOTE0=10.0.0.2
IP_REMOTE1=10.0.1.2
IP_MCADDR0=224.0.0.10
IP6_LOCAL0=fc00::1
IP6_LOCAL1=fc00:1::1
IP6_REMOTE0=fc00::2
IP6_REMOTE1=fc00:1::2
IP6_MCADDR0=ff11::10
ETH_IP_MCADDR0=01:00:5e:00:00:0a
ETH_IP6_MCADDR0=33:33:00:00:00:10

DEBUG=${DEBUG:-false}

vlan_create_destroy_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"

       export RUMP_SERVER=${SOCK_LOCAL}

       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 destroy

       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 up
       $atf_ifconfig vlan0 down
       $atf_ifconfig vlan0 destroy

       $atf_ifconfig shmif0 create
       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 vlan 1 vlanif shmif0
       $atf_ifconfig vlan0 up
       $atf_ifconfig vlan0 destroy

       # more than one vlan interface with a same parent interface
       $atf_ifconfig shmif1 create
       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan1 create
       $atf_ifconfig vlan1 vlan 11 vlanif shmif0

       # more than one interface with another parent interface
       $atf_ifconfig vlan2 create
       $atf_ifconfig vlan2 vlan 12 vlanif shmif1
       $atf_ifconfig vlan3 create
       $atf_ifconfig vlan3 vlan 13 vlanif shmif1
       $atf_ifconfig shmif0 destroy
       atf_check -s exit:0 -o not-match:'shmif0' rump.ifconfig vlan0
       atf_check -s exit:0 -o not-match:'shmif0' rump.ifconfig vlan1
       atf_check -s exit:0 -o match:'shmif1' rump.ifconfig vlan2
       atf_check -s exit:0 -o match:'shmif1' rump.ifconfig vlan3
       $atf_ifconfig vlan0 destroy
       $atf_ifconfig vlan1 destroy
       $atf_ifconfig vlan2 destroy
       $atf_ifconfig vlan3 destroy

}

test_create_destroy()
{
       rump_server_start $SOCK_LOCAL vlan

       vlan_create_destroy_body_common
}

test_create_destroy6()
{

       rump_server_start $SOCK_LOCAL vlan netinet6

       vlan_create_destroy_body_common
}

vlan_basic_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local outfile=./out
       local af=inet
       local prefix=24
       local local0=$IP_LOCAL0
       local remote0=$IP_REMOTE0
       local ping_cmd="rump.ping -n -w 1 -c 1"

       if [ x"$1" = x"inet6" ]; then
               af="inet6"
               prefix=64
               local0=$IP6_LOCAL0
               remote0=$IP6_REMOTE0
               ping_cmd="rump.ping6 -n -c 1"
       fi

       rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
       rump_server_add_iface $SOCK_REMOTE shmif0 $BUS

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig shmif0 up
       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig shmif0 up

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $local0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $remote0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10

       extract_new_packets $BUS > $outfile

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore $ping_cmd $remote0

       extract_new_packets $BUS > $outfile
       atf_check -s exit:0 -o match:'vlan 10' cat $outfile

       $atf_ifconfig vlan0 -vlanif
       $atf_ifconfig vlan0 vlan 20 vlanif shmif0
       $atf_ifconfig vlan0 $af $local0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10

       extract_new_packets $BUS > $outfile
       atf_check -s not-exit:0 -o ignore $ping_cmd $remote0

       extract_new_packets $BUS > $outfile
       atf_check -s exit:0 -o match:'vlan 20' cat $outfile

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 -vlanif
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $local0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10

       atf_check -s exit:0 -o ignore rump.ifconfig -z vlan0
       atf_check -s exit:0 -o ignore $ping_cmd $remote0
       rump.ifconfig -v vlan0 > $outfile

       atf_check -s exit:0 -o not-match:' 0 packets' cat $outfile
       atf_check -s exit:0 -o not-match:' 0 bytes' cat $outfile
}

test_basic()
{
       rump_server_start $SOCK_LOCAL vlan
       rump_server_start $SOCK_REMOTE vlan

       vlan_basic_body_common inet

}

test_basic6()
{
       rump_server_start $SOCK_LOCAL vlan netinet6
       rump_server_start $SOCK_REMOTE vlan netinet6

       vlan_basic_body_common inet6
}

vlan_auto_follow_mtu_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local outfile=./out
       local af=inet
       local prefix=24
       local local0=$IP_LOCAL0
       local remote0=$IP_REMOTE0
       local ping_cmd="rump.ping -D -n -w 1 -c 1"
       local mtu=1500
       local vlan_mtu=`expr $mtu - 4`
       # ipv4 header=20bytes, icmp header=8bytes
       local padding=`expr $vlan_mtu - 20 - 8`
       local over_padding=`expr $vlan_mtu - 20 - 8 + 1`
       local nonfrag_msg="$local0 > $remote0: ICMP echo request"
       # unused for ipv4
       local frag_msg=""

       if [ x"$1" = x"inet6" ]; then
               af="inet6"
               prefix=64
               local0=$IP6_LOCAL0
               remote0=$IP6_REMOTE0
               # ipv6 header=40bytes, icmpv6 header=8bytes
               padding=`expr $vlan_mtu - 40 - 8`
               over_padding=`expr $vlan_mtu - 40 - 8 + 1`
               ping_cmd="rump.ping6 -mm -n -c 1 -i 1"
               nonfrag_msg="$local0 > $remote0: ICMP6, echo request"
               frag_msg="$local0 > $remote0: frag .* ICMP6, echo request"
       fi

       rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
       rump_server_add_iface $SOCK_REMOTE shmif0 $BUS

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig shmif0 up
       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig shmif0 up

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 create

       # since upper bound of shmif's mtu is 1500,
       # so we lower vlan's mtu instead of raising shmif's.
       # to do this, we change the interface's parameter
       # such as ND_IFINFO(ifp)->maxmtu that is changed by SIOCSIFMTU.

       # $atf_config shmif0 mtu 1600
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 mtu 1400
       $atf_ifconfig vlan0 -vlanif shmif0

       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $local0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $remote0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10

       extract_new_packets $BUS > $outfile
       export RUMP_SERVER=$SOCK_LOCAL

       atf_check -s exit:0 -o ignore $ping_cmd -s $padding $remote0
       extract_new_packets $BUS > $outfile
       atf_check -s exit:0 -o match:"$nonfrag_msg" cat $outfile

       if [ x"$1" = x"inet6" ]; then
               atf_check -s exit:0 -o ignore $ping_cmd -s $over_padding $remote0
               extract_new_packets $BUS > $outfile
               atf_check -s exit:0 -o match:"$frag_msg" cat $outfile
       else
               atf_check -s not-exit:0 -o ignore -e match:"Message too long" \
                               $ping_cmd -s $over_padding $remote0
       fi
}

test_auto_follow_mtu()
{
       rump_server_start $SOCK_LOCAL vlan
       rump_server_start $SOCK_REMOTE vlan

       vlan_auto_follow_mtu_body_common inet
}

test_auto_follow_mtu6()
{
       rump_server_start $SOCK_LOCAL vlan netinet6
       rump_server_start $SOCK_REMOTE vlan netinet6

       vlan_auto_follow_mtu_body_common inet6
}

vlanid_config_and_ping()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local vlanid=$1
       shift

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 vlan $vlanid vlanif shmif0
       $atf_ifconfig vlan0 $IP_LOCAL0/24
       $atf_ifconfig vlan0 up

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 vlan $vlanid vlanif shmif0
       $atf_ifconfig vlan0 $IP_REMOTE0/24
       $atf_ifconfig vlan0 up

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore rump.ping -n -w 1 -c 1 $IP_REMOTE0
       $atf_ifconfig vlan0 -vlanif

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 -vlanif
}

vlanid_config_and_ping6()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local vlanid=$1
       shift

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 vlan $vlanid vlanif shmif0
       $atf_ifconfig vlan0 inet6 $IP6_LOCAL0/64
       $atf_ifconfig vlan0 up

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 vlan $vlanid vlanif shmif0
       $atf_ifconfig vlan0 inet6 $IP6_REMOTE0/64
       $atf_ifconfig vlan0 up

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore rump.ping6 -n -c 1 $IP6_REMOTE0
       $atf_ifconfig vlan0 -vlanif

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 -vlanif
}

vlan_vlanid_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local af=inet
       local prefix=24
       local sysctl_param="net.inet.ip.dad_count=0"
       local ping_cmd="rump.ping -n -w 1 -c 1"
       local config_and_ping=vlanid_config_and_ping
       local local0=$IP_LOCAL0
       local local1=$IP_LOCAL1
       local remote0=$IP_REMOTE0
       local remote1=$IP_REMOTE1

       if [ x"$1" = x"inet6" ]; then
               af=inet6
               prefix=64
               sysctl_param="net.inet6.ip6.dad_count=0"
               ping_cmd="rump.ping6 -n -c 1"
               config_and_ping=vlanid_config_and_ping6
               local0=$IP6_LOCAL0
               local1=$IP6_LOCAL1
               remote0=$IP6_REMOTE0
               remote1=$IP6_REMOTE1
       fi

       rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
       rump_server_add_iface $SOCK_REMOTE shmif0 $BUS

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore rump.sysctl -w $sysctl_param
       $atf_ifconfig shmif0 up
       $atf_ifconfig vlan0 create

       export RUMP_SERVER=$SOCK_REMOTE
       atf_check -s exit:0 -o ignore rump.sysctl -w $sysctl_param
       $atf_ifconfig shmif0 up
       $atf_ifconfig vlan0 create

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s not-exit:0 -e match:"^usage: rump.ifconfig" \
           rump.ifconfig vlan0 vlan -1 vlanif shmif0

       # $config_and_ping 0 # reserved vlan id
       $config_and_ping 1
       $config_and_ping 4094
       # $config_and_ping 4095 #reserved vlan id

       if [ "${RANDOM:-0}" != "${RANDOM:-0}" ]
       then
               for TAG in $(( ${RANDOM:-0} % 4092 + 2 )) \
                          $(( ${RANDOM:-0} % 4092 + 2 )) \
                          $(( ${RANDOM:-0} % 4092 + 2 ))
               do
                       $config_and_ping "${TAG}"
               done
       fi

       export RUMP_SERVER=$SOCK_LOCAL
       for TAG in 0 4095 4096 $((4096*4 + 1)) 65536 65537 $((65536 + 4095))
       do
               atf_check -s not-exit:0 -e not-empty \
                   rump.ifconfig vlan0 vlan "${TAG}" vlanif shmif0
       done

       $atf_ifconfig vlan0 vlan 1 vlanif shmif0
       atf_check -s not-exit:0 -e match:"SIOCSETVLAN: Device busy" \
           rump.ifconfig vlan0 vlan 2 vlanif shmif0

       atf_check -s not-exit:0 -e match:"SIOCSETVLAN: Device busy" \
           rump.ifconfig vlan0 vlan 1 vlanif shmif1

       $atf_ifconfig vlan0 -vlanif
       atf_check -s not-exit:0 -e match:"Invalid argument" \
           rump.ifconfig vlan0 $af $local0/$prefix

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $local0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig vlan1 create
       $atf_ifconfig vlan1 vlan 11 vlanif shmif0
       $atf_ifconfig vlan1 $af $local1/$prefix
       $atf_ifconfig vlan1 up

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 -vlanif
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $remote0/$prefix
       $atf_ifconfig vlan0 up
       $atf_ifconfig vlan1 create
       $atf_ifconfig vlan1 vlan 11 vlanif shmif0
       $atf_ifconfig vlan1 $af $remote1/$prefix
       $atf_ifconfig vlan1 up

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore $ping_cmd $remote0
       atf_check -s exit:0 -o ignore $ping_cmd $remote1
}

test_vlanid()
{
       rump_server_start $SOCK_LOCAL vlan
       rump_server_start $SOCK_REMOTE vlan

       vlan_vlanid_body_common inet
}

test_vlanid6()
{
       rump_server_start $SOCK_LOCAL vlan netinet6
       rump_server_start $SOCK_REMOTE vlan netinet6

       vlan_vlanid_body_common inet6
}

vlan_configs_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"

       export RUMP_SERVER=${SOCK_LOCAL}

       $atf_ifconfig shmif0 create
       $atf_ifconfig shmif1 create
       # unset U/L bit to detect a bug fixed by if_vlan.c:r1.132
       $atf_ifconfig shmif0 link b0:a0:75:00:01:00 active
       $atf_ifconfig shmif1 link b0:a0:75:00:01:01 active
       $atf_ifconfig vlan0 create

       atf_check -s exit:0 -o match:'status: +down' \
           rump.ifconfig vlan0
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 -vlanif
       atf_check -s exit:0 -o match:'status: +down' \
           rump.ifconfig vlan0

       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 -vlanif shmif0

       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       atf_check -s exit:0 rump.ifconfig vlan0 -vlanif shmif1
       atf_check -s exit:0 rump.ifconfig vlan0 -vlanif shmif2

       $atf_ifconfig vlan0 -vlanif

       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       atf_check -s exit:0 -e match:'Invalid argument' \
           rump.ifconfig vlan0 mtu 1497
       $atf_ifconfig vlan0 mtu 1496
       $atf_ifconfig vlan0 mtu 42
       atf_check -s exit:0 -e match:'Invalid argument' \
           rump.ifconfig vlan0 mtu 41
       $atf_ifconfig vlan0 -vlanif

       $atf_ifconfig vlan1 create
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       atf_check -s not-exit:0 -e match:'File exists' \
           rump.ifconfig vlan1 vlan 10 vlanif shmif0
       $atf_ifconfig vlan1 vlan 10 vlanif shmif1

       $atf_ifconfig vlan1 -vlanif shmif1
       $atf_ifconfig vlan1 vlan 10 vlanif shmif1

       $atf_ifconfig vlan0 -vlanif shmif0
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
}

test_configs()
{

       rump_server_start $SOCK_LOCAL vlan

       vlan_configs_body_common

}

test_configs6()
{
       rump_server_start $SOCK_LOCAL vlan netinet6

       vlan_configs_body_common
}

vlan_bridge_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local atf_brconfig="atf_check -s exit:0 $HIJACKING /sbin/brconfig"

       rump_server_add_iface $SOCK_LOCAL shmif0 $BUS

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig shmif0 up

       $atf_ifconfig vlan0 create
       $DEBUG && rump.ifconfig vlan0

       $atf_ifconfig bridge0 create
       $atf_ifconfig bridge0 up

       #
       # Add vlan to bridge member
       #
       $atf_ifconfig bridge0 mtu 1496

       # vlan0 can not add to bridge member
       # because it is not an ethernet device
       atf_check -s not-exit:0 -e match:'Invalid argument' \
           $HIJACKING /sbin/brconfig bridge0 add vlan0

       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 up
       atf_check -s exit:0 -o match:'mtu 1496' rump.ifconfig vlan0

       # vlan0 becomes an ethernet device
       # after attaching the parent interface
       $atf_brconfig bridge0 add vlan0
       $DEBUG && $HIJACKING /sbin/brconfig bridge0

       $atf_brconfig bridge0 delete vlan0

       $atf_brconfig bridge0 add vlan0
       $atf_ifconfig vlan0 -vlanif
       atf_check -s exit:0 -o not-match:'vlan0' \
           $HIJACKING /sbin/brconfig bridge0
       atf_check -s not-exit:0 -e match:'No such' \
           $HIJACKING /sbin/brconfig bridge0 delete vlan0

       #
       # decrease MTU on adding to bridge member
       #
       $atf_ifconfig bridge0 mtu 1495
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 up
       atf_check -s exit:0 -o match:'mtu 1496' rump.ifconfig vlan0

       $atf_brconfig bridge0 add vlan0
       $DEBUG && $HIJACKING /sbin/brconfig bridge0
       atf_check -s exit:0 -o match:'mtu 1495' rump.ifconfig vlan0
       $atf_brconfig bridge0 delete vlan0

       #
       # increase MTU on adding to bridge member
       #
       $atf_ifconfig bridge0 mtu 1496
       $atf_ifconfig vlan0 mtu 1495
       $atf_brconfig bridge0 add vlan0

       $DEBUG && $HIJACKING /sbin/brconfig bridge0
       atf_check -s exit:0 -o match:'mtu 1496' rump.ifconfig vlan0
       $atf_brconfig bridge0 delete vlan0

       $atf_ifconfig bridge0 mtu 1497
       atf_check -s not-exit:0 -o ignore -e ignore \
           $HIJACKING /sbin/brconfig bridge0 add vlan0

       #
       # Destroy a vlan interface that is bridge member
       #
       $atf_ifconfig bridge0 mtu 1496
       $atf_brconfig bridge0 add vlan0
       $atf_ifconfig vlan0 destroy

       rump_server_destroy_ifaces
}

test_bridge()
{

       rump_server_start $SOCK_LOCAL vlan bridge
       vlan_bridge_body_common
}

test_bridge6()
{

       rump_server_start $SOCK_LOCAL vlan netinet6 bridge
       vlan_bridge_body_common
}

vlan_multicast_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local af="inet"
       local local0=$IP_LOCAL0
       local local1=$IP_LOCAL1
       local mcaddr=$IP_MCADDR0
       local eth_mcaddr=$ETH_IP_MCADDR0
       local prefix=24
       local siocXmulti="$(atf_get_srcdir)/siocXmulti"
       local atf_siocXmulti="atf_check -s exit:0 $HIJACKING $siocXmulti"

       if [ x"$1" =  x"inet6" ]; then
               af="inet6"
               prefix=64
               local0=$IP6_LOCAL0
               local1=$IP6_LOCAL1
               mcaddr=$IP6_MCADDR0
               eth_mcaddr=$ETH_IP6_MCADDR0
       fi

       export RUMP_SERVER=$SOCK_LOCAL

       $atf_ifconfig shmif0 create
       $atf_ifconfig shmif0 linkstr net0 up
       $atf_ifconfig vlan0 create
       $atf_ifconfig vlan0 vlan 10 vlanif shmif0
       $atf_ifconfig vlan0 $af $local0/$prefix up
       $atf_ifconfig vlan1 create
       $atf_ifconfig vlan1 vlan 11 vlanif shmif0
       $atf_ifconfig vlan1 $af $local1/$prefix up
       $atf_ifconfig -w 10

       # check the initial state
       atf_check -s exit:0 -o not-match:"$eth_mcaddr" $HIJACKING ifmcstat

       # add a multicast address
       $atf_siocXmulti add vlan0 $mcaddr
       atf_check -s exit:0 -o match:"$eth_mcaddr" $HIJACKING ifmcstat

       # delete the address
       $atf_siocXmulti del vlan0 $mcaddr
       atf_check -s exit:0 -o not-match:"$eth_mcaddr" $HIJACKING ifmcstat

       # delete a non-existing address
       atf_check -s not-exit:0 -e match:"Invalid argument" \
           $HIJACKING $siocXmulti del vlan0 $mcaddr

       # add an address to different interfaces
       $atf_siocXmulti add vlan0 $mcaddr
       $atf_siocXmulti add vlan1 $mcaddr
       atf_check -s exit:0 -o match:"${eth_mcaddr} refcount 2" $HIJACKING ifmcstat
       $atf_siocXmulti del vlan0 $mcaddr

       # delete the address with invalid interface
       atf_check -s not-exit:0 -e match:"Invalid argument" \
           $HIJACKING $siocXmulti del vlan0 $mcaddr

       $atf_siocXmulti del vlan1 $mcaddr

       # add and delete a same address more than once
       $atf_siocXmulti add vlan0 $mcaddr
       $atf_siocXmulti add vlan0 $mcaddr
       $atf_siocXmulti add vlan0 $mcaddr
       atf_check -s exit:0 -o match:"${eth_mcaddr} refcount 3" $HIJACKING ifmcstat
       $atf_siocXmulti del vlan0 $mcaddr
       $atf_siocXmulti del vlan0 $mcaddr
       $atf_siocXmulti del vlan0 $mcaddr
       atf_check -s exit:0 -o not-match:"$eth_mcaddr" $HIJACKING ifmcstat

       # delete all address added to parent device when remove
       # the config of parent interface
       $atf_siocXmulti add vlan0 $mcaddr
       $atf_siocXmulti add vlan0 $mcaddr
       $atf_siocXmulti add vlan0 $mcaddr
       $atf_ifconfig vlan0 -vlanif shmif0
       atf_check -s exit:0 -o not-match:"$eth_mcaddr" $HIJACKING ifmcstat
}

test_multicast()
{
       rump_server_start $SOCK_LOCAL vlan

       vlan_multicast_body_common inet
}

test_multicast6()
{
       rump_server_start $SOCK_LOCAL vlan netinet6

       vlan_multicast_body_common inet6
}

test_promisc()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"
       local atf_brconfig="atf_check -s exit:0 $HIJACKING /sbin/brconfig"
       local atf_arp="atf_check -s exit:0 rump.arp"
       local bpfopen="$HIJACKING $(atf_get_srcdir)/bpfopen"
       bpfopen="$bpfopen -dv -b /rump/dev/bpf"
       local pidfile="./bpfopen.pid"
       local macaddr=""

       rump_server_bpf_start $SOCK_LOCAL vlan bridge
       rump_server_start $SOCK_REMOTE vlan

       rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
       rump_server_add_iface $SOCK_LOCAL shmif1
       rump_server_add_iface $SOCK_LOCAL vlan0
       rump_server_add_iface $SOCK_LOCAL vlan1
       rump_server_add_iface $SOCK_LOCAL bridge0

       rump_server_add_iface $SOCK_REMOTE shmif0 $BUS
       rump_server_add_iface $SOCK_REMOTE vlan0

       macaddr=$(get_macaddr $SOCK_LOCAL shmif1)

       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 vlan 1 vlanif shmif0
       $atf_ifconfig shmif0 up
       $atf_ifconfig vlan0 inet $IP_REMOTE0/24
       $atf_ifconfig vlan0 up
       $atf_ifconfig -w 10
       $atf_arp -s $IP_LOCAL0 $macaddr

       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig bridge0 mtu 1496
       #
       # When vlan IF is PROMISC, the parent is also PROMISC
       #
       $atf_ifconfig vlan0 vlan 1 vlanif shmif0
       $atf_ifconfig shmif0 up
       $atf_ifconfig vlan0 up

       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig shmif0

       $atf_brconfig bridge0 add vlan0
       $atf_ifconfig bridge0 up
       atf_check -s exit:0 -o match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o match:'PROMISC' rump.ifconfig shmif0

       $atf_ifconfig bridge0 down
       $atf_brconfig bridge0 delete vlan0
       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig shmif0
       $atf_ifconfig vlan0 -vlanif

       #
       # drop unicast packets that is not for the host
       #
       $atf_ifconfig vlan0 vlan 1 vlanif shmif0
       $atf_ifconfig -w 10

       atf_check -s exit:0 -e match:'bpf opened' $bpfopen -p $pidfile shmif0

       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o match:'PROMISC' rump.ifconfig shmif0
       atf_check -s exit:0 -o ignore rump.ifconfig -z vlan0
       atf_check -s exit:0 -o not-match:'input:.*errors' \
           rump.ifconfig -v vlan0

       export RUMP_SERVER=$SOCK_REMOTE
       atf_check -s not-exit:0 -o ignore -e ignore \
           rump.ping -c 3 -i 0.2 $IP_LOCAL0

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o match:'input:.*errors' \
           rump.ifconfig -v vlan0

       atf_check -s exit:0 kill -TERM $(cat $pidfile)
       sleep 2

       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig shmif0
       $atf_ifconfig vlan0 -vlanif

       #
       # clear IFF_PROMISC after bpf_detach called from ether_ifdetach
       #
       $atf_ifconfig vlan0 vlan 1 vlanif shmif0
       $atf_ifconfig vlan0 up

       atf_check -s exit:0 -e match:'bpf opened' $bpfopen -p $pidfile vlan0

       atf_check -s exit:0 -o match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o match:'PROMISC' rump.ifconfig shmif0

       $atf_ifconfig vlan0 -vlanif

       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig vlan0
       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig shmif0

       atf_check -s exit:0 kill -TERM $(cat $pidfile)
       sleep 2
       atf_check -s exit:0 -o not-match:'PROMISC' rump.ifconfig vlan0
}

vlan_l2tp_body_common()
{
       local atf_ifconfig="atf_check -s exit:0 rump.ifconfig"

       local af=$1
       local ping_cmd="rump.ping -c 1"
       local pfx=24
       local local0=$IP_LOCAL0
       local local1=$IP_LOCAL1
       local remote0=$IP_REMOTE0
       local remote1=$IP_REMOTE1
       local sysctl_param="net.inet.ip.dad_count=0"
       local vid0=10
       local vid1=11

       local l2tp_laddr=10.222.222.1
       local l2tp_lsession=1001
       local l2tp_raddr=10.222.222.2
       local l2tp_rsession=1002

       if [ x"$af" = x"inet6" ]; then
               ping_cmd="rump.ping6 -c 1"
               rumplib="netinet6"
               pfx=64
               local0=$IP6_LOCAL0
               local1=$IP6_LOCAL1
               remote0=$IP6_REMOTE0
               remote1=$IP6_REMOTE1
               sysctl_param="net.inet6.ip6.dad_count=0"
       fi

       rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
       rump_server_add_iface $SOCK_LOCAL l2tp0
       rump_server_add_iface $SOCK_LOCAL vlan0
       rump_server_add_iface $SOCK_LOCAL vlan1

       rump_server_add_iface $SOCK_REMOTE shmif0 $BUS
       rump_server_add_iface $SOCK_REMOTE l2tp0
       rump_server_add_iface $SOCK_REMOTE vlan0
       rump_server_add_iface $SOCK_REMOTE vlan1

       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore rump.sysctl -w $sysctl_param
       $atf_ifconfig shmif0 $l2tp_laddr/24
       $atf_ifconfig l2tp0 tunnel  $l2tp_laddr $l2tp_raddr
       $atf_ifconfig l2tp0 session $l2tp_lsession $l2tp_rsession
       $atf_ifconfig l2tp0 up

       export RUMP_SERVER=$SOCK_REMOTE
       atf_check -s exit:0 -o ignore rump.sysctl -w $sysctl_param
       $atf_ifconfig shmif0 $l2tp_raddr/24
       $atf_ifconfig l2tp0 tunnel  $l2tp_raddr $l2tp_laddr
       $atf_ifconfig l2tp0 session $l2tp_rsession $l2tp_lsession
       $atf_ifconfig l2tp0 up

       # configure vlans on l2tp(4)
       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 vlan $vid0 vlanif l2tp0
       $atf_ifconfig vlan0 $af $local0/$pfx
       $atf_ifconfig vlan1 vlan $vid1 vlanif l2tp0
       $atf_ifconfig vlan1 $af $local1/$pfx
       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 vlan $vid0 vlanif l2tp0
       $atf_ifconfig vlan0 $af $remote0/$pfx
       $atf_ifconfig vlan1 vlan $vid1 vlanif l2tp0
       $atf_ifconfig vlan1 $af $remote1/$pfx

       # test for VLAN frame transfer
       export RUMP_SERVER=$SOCK_LOCAL
       atf_check -s exit:0 -o ignore $ping_cmd $remote0
       atf_check -s exit:0 -o ignore $ping_cmd $remote1

       # unconfig vlans
       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig vlan0 -vlanif
       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig vlan0 -vlanif

       # remove l2tp0 that has vlan1
       export RUMP_SERVER=$SOCK_LOCAL
       $atf_ifconfig l2tp0 destroy
       export RUMP_SERVER=$SOCK_REMOTE
       $atf_ifconfig l2tp0 destroy
}

test_l2tp()
{

       rump_server_start $SOCK_LOCAL  vlan l2tp
       rump_server_start $SOCK_REMOTE vlan l2tp

       vlan_l2tp_body_common "inet"
}

test_l2tp6()
{

       rump_server_start $SOCK_LOCAL  vlan l2tp netinet6
       rump_server_start $SOCK_REMOTE vlan l2tp netinet6

       vlan_l2tp_body_common "inet6"
}

check_link_state()
{
       local ifname=$1
       local state=$2

       atf_check -s exit:0 -o match:"linkstate: $state" $HIJACKING rump.ifconfig -v $ifname
}

create_interfaces()
{

       atf_check -s exit:0 rump.ifconfig vlan0 create
       atf_check -s exit:0 rump.ifconfig shmif0 create
}

destroy_interfaces()
{

       atf_check -s exit:0 rump.ifconfig vlan0 destroy
       atf_check -s exit:0 rump.ifconfig shmif0 destroy
}

test_link_state_sync()
{
       local ifconfig="atf_check -s exit:0 rump.ifconfig"

       rump_server_start $SOCK_LOCAL vlan

       export RUMP_SERVER=${SOCK_LOCAL}

       ## Alone
       $ifconfig        vlan0 create
       # The default state is "down"
       check_link_state vlan0 down
       $ifconfig        vlan0 up
       check_link_state vlan0 down
       $ifconfig        vlan0 down
       check_link_state vlan0 down
       $ifconfig        vlan0 destroy

       ## "unknown" parent
       create_interfaces
       # shmif0 is "unknown" until ifconfig linkstr
       check_link_state shmif0 unknown
       $ifconfig        vlan0 vlan 1 vlanif shmif0
       # vlan0 syncs with the parent
       check_link_state vlan0 unknown
       $ifconfig        vlan0 up
       check_link_state vlan0 unknown
       $ifconfig        vlan0 -vlanif
       # Back to the default
       check_link_state vlan0 down
       destroy_interfaces

       ## "up" parent
       create_interfaces
       $ifconfig        shmif0 linkstr $BUS
       check_link_state shmif0 up
       $ifconfig        vlan0 vlan 1 vlanif shmif0
       # vlan0 syncs with the parent
       check_link_state vlan0 up
       $ifconfig        vlan0 -vlanif
       # Back to the default
       check_link_state vlan0 down
       destroy_interfaces

       ## Change parent's link state to "up", "down", then "up"
       create_interfaces
       $ifconfig        shmif0 linkstr $BUS
       check_link_state shmif0 up
       $ifconfig        vlan0 vlan 1 vlanif shmif0
       check_link_state vlan0 up
       # Down the parent
       $ifconfig        shmif0 media none
       check_link_state shmif0 down
       # vlan0 syncs with the parent
       check_link_state vlan0 down
       # Up the parent again
       $ifconfig        shmif0 media auto
       # vlan0 syncs with the parent
       check_link_state vlan0 up
       $ifconfig        vlan0 -vlanif
       # Back to the default
       check_link_state vlan0 down
       destroy_interfaces
}

add_test()
{
       local name=$1
       local desc="$2"

       atf_test_case "vlan_${name}" cleanup
       eval "vlan_${name}_head() {
                       atf_set descr \"${desc}\"
                       atf_set require.progs rump_server
               }
           vlan_${name}_body() {
                       test_${name}
               }
           vlan_${name}_cleanup() {
                       \$DEBUG && dump
                       cleanup
               }"
       atf_add_test_case "vlan_${name}"
}

atf_init_test_cases()
{

       add_test create_destroy   "tests of creation and deletion of vlan interface"
       add_test basic            "tests of communications over vlan interfaces"
       add_test auto_follow_mtu  "tests of setting vlan mtu using IPv4"
       add_test vlanid           "tests of configuration for vlan id"
       add_test configs          "tests of configuration except vlan id"
       add_test bridge           "tests of vlan interfaces with bridges (IPv4)"
       add_test multicast        "tests of multicast address adding and deleting"
       add_test l2tp             "tests of vlan(IPv4) over l2tp(IPv4)"

       add_test create_destroy6  "tests of creation and deletion of vlan interface with IPv6"
       add_test basic6           "tests of communications over vlan interfaces using IPv6"
       add_test auto_follow_mtu6 "tests of setting vlan mtu using IPv6"
       add_test vlanid6          "tests of configuration for vlan id using IPv6"
       add_test configs6         "tests of configuration except vlan id using IPv6"
       add_test bridge6          "tests of vlan interfaces with bridges (IPv6)"
       add_test multicast6       "tests of multicast address adding and deleting with IPv6"
       add_test l2tp6            "tests of vlan(IPv6) over l2tp(IPv4)"

       add_test promisc          "tests of IFF_PROMISC of vlan"
       add_test link_state_sync  "tests of link state sync with its parent"
}

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