#       $NetBSD: t_ndp.sh,v 1.40 2022/01/07 03:07:41 ozaki-r Exp $
#
# Copyright (c) 2015 The NetBSD Foundation, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# 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
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

SOCKSRC=unix://commsock1
SOCKDST=unix://commsock2
IP6SRC=fc00::1
IP6SRC2=fc00::3
IP6DST=fc00::2
IP6NET=fc00::0
IP6DST_FAIL1=fc00::99
IP6DST_FAIL2=fc01::99

DEBUG=${DEBUG:-false}
TIMEOUT=1

atf_test_case ndp_cache_expiration cleanup
atf_test_case ndp_commands cleanup
atf_test_case ndp_cache_overwriting cleanup
atf_test_case ndp_neighborgcthresh cleanup
atf_test_case ndp_link_activation cleanup

ndp_cache_expiration_head()
{
       atf_set "descr" "Tests for NDP cache expiration"
       atf_set "require.progs" "rump_server"
}

ndp_commands_head()
{
       atf_set "descr" "Tests for commands of ndp(8)"
       atf_set "require.progs" "rump_server"
}

ndp_cache_overwriting_head()
{
       atf_set "descr" "Tests for behavior of overwriting NDP caches"
       atf_set "require.progs" "rump_server"
}

ndp_neighborgcthresh_head()
{
       atf_set "descr" "Tests for GC of neighbor caches"
       atf_set "require.progs" "rump_server"
}

ndp_link_activation_head()
{
       atf_set "descr" "Tests for activating a new MAC address"
       atf_set "require.progs" "rump_server"
}

setup_dst_server()
{
       local assign_ip=$1

       rump_server_add_iface $SOCKDST shmif0 bus1
       export RUMP_SERVER=$SOCKDST
       if [ "$assign_ip" != no ]; then
               atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6DST
       fi
       atf_check -s exit:0 rump.ifconfig shmif0 up
       atf_check -s exit:0 rump.ifconfig -w 10

       $DEBUG && rump.ifconfig shmif0
       $DEBUG && rump.ndp -n -a
}

setup_src_server()
{
       $DEBUG && ulimit -c unlimited
       export RUMP_SERVER=$SOCKSRC

       # Setup an interface
       rump_server_add_iface $SOCKSRC shmif0 bus1
       atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6SRC
       atf_check -s exit:0 rump.ifconfig shmif0 up
       atf_check -s exit:0 rump.ifconfig -w 10

       # Sanity check
       $DEBUG && rump.ifconfig shmif0
       $DEBUG && rump.ndp -n -a
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6SRC
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6DST
}

get_timeout()
{
       local timeout=$(env RUMP_SERVER=$SOCKSRC rump.ndp -n $IP6DST |grep $IP6DST|awk '{print $4;}')
       timeout=${timeout%s}
       echo $timeout
}

ndp_cache_expiration_body()
{
       local macaddr=

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       # 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
       #
       atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST

       $DEBUG && rump.ndp -n -a
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6SRC
       # Should be cached
       atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n $IP6DST

       timeout=$(get_timeout $IP6DST)

       atf_check -s exit:0 sleep $(($timeout + 1))

       $DEBUG && rump.ndp -n -a
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6SRC
       # Expired but remains until GC sweaps it (1 day)
       atf_check -s exit:0 -o match:"$ONEDAYISH" rump.ndp -n $IP6DST

       rump_server_destroy_ifaces
}

ifdown_dst_server()
{
       export RUMP_SERVER=$SOCKDST
       atf_check -s exit:0 rump.ifconfig shmif0 down
       export RUMP_SERVER=$SOCKSRC
}

ndp_commands_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       export RUMP_SERVER=$SOCKSRC

       # Add and delete a static entry
       $DEBUG && rump.ndp -n -a
       atf_check -s exit:0 -o ignore rump.ndp -s fc00::10 b2:a0:20:00:00:10
       $DEBUG && rump.ndp -n -a
       atf_check -s exit:0 -o match:'permanent' rump.ndp -n fc00::10
       check_route fc00::10 'b2:a0:20:00:00:10' UHLS shmif0
       atf_check -s exit:0 -o match:'deleted' rump.ndp -d fc00::10
       $DEBUG && rump.ndp -n -a
       atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n fc00::10
       check_route_no_entry fc00::10

       # Add multiple entries via a file (XXX not implemented)
       #cat - > ./list <<-EOF
       #fc00::11 b2:a0:20:00:00:11
       #fc00::12 b2:a0:20:00:00:12
       #fc00::13 b2:a0:20:00:00:13
       #fc00::14 b2:a0:20:00:00:14
       #fc00::15 b2:a0:20:00:00:15
       #EOF
       #$DEBUG && rump.ndp -n -a
       #atf_check -s exit:0 -o ignore rump.ndp -f ./list
       #$DEBUG && rump.ndp -n -a

       atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST
       atf_check -s exit:0 -o ignore rump.ndp -s fc00::11 b2:a0:20:00:00:11
       atf_check -s exit:0 -o ignore rump.ndp -s fc00::12 b2:a0:20:00:00:12

       atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n $IP6DST
       atf_check -s exit:0 -o match:'permanent' rump.ndp -n fc00::11
       atf_check -s exit:0 -o match:'permanent' rump.ndp -n fc00::12
       check_route_flags $IP6DST UHL
       check_route_flags fc00::11 UHLS
       check_route_flags fc00::12 UHLS

       # Test ndp -a
       atf_check -s exit:0 -o match:'fc00::11' rump.ndp -n -a
       atf_check -s exit:0 -o match:'fc00::12' rump.ndp -n -a

       # Ensure no packet upsets the src server
       ifdown_dst_server

       # Flush all entries (-c)
       $DEBUG && rump.ndp -n -a
       atf_check -s exit:0 -o ignore rump.ndp -c
       atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n $IP6SRC
       atf_check -s not-exit:0 -o ignore -e ignore rump.ndp -n $IP6DST
       #check_route_no_entry $IP6SRC
       check_route_no_entry $IP6DST
       # Only the static caches are not deleted
       atf_check -s exit:0 -o ignore -e ignore rump.ndp -n fc00::11
       atf_check -s exit:0 -o ignore -e ignore rump.ndp -n fc00::12
       check_route_flags fc00::11 UHLS
       check_route_flags fc00::12 UHLS

       $DEBUG && rump.ndp -n -a
       atf_check -s exit:0 -o ignore rump.ndp -s fc00::10 b2:a0:20:00:00:10 temp
       rump.ndp -s fc00::10 b2:a0:20:00:00:10 temp
       $DEBUG && rump.ndp -n -a
       atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n fc00::10
       check_route fc00::10 'b2:a0:20:00:00:10' UHL shmif0

       rump_server_destroy_ifaces
}

ndp_cache_overwriting_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       export RUMP_SERVER=$SOCKSRC

       # Cannot overwrite a permanent cache
       atf_check -s exit:0 rump.ndp -s $IP6SRC b2:a0:20:00:00:ff
       $DEBUG && rump.ndp -n -a
       atf_check -s not-exit:0 -e ignore rump.ndp -s $IP6SRC b2:a0:20:00:00:fe

       atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6DST
       $DEBUG && rump.ndp -n -a
       # Can overwrite a dynamic cache
       atf_check -s exit:0 -o ignore rump.ndp -s $IP6DST b2:a0:20:00:00:00
       $DEBUG && rump.ndp -n -a
       atf_check -s exit:0 -o match:'permanent' rump.ndp -n $IP6DST

       # Test temp option (XXX it doesn't work; expire time isn't set)
       #atf_check -s exit:0 -o ignore rump.ndp -s fc00::10 b2:a0:20:00:00:10 temp
       #$DEBUG && rump.ndp -n -a
       #atf_check -s exit:0 -o not-match:'permanent' rump.ndp -n fc00::10
       # Cannot overwrite a temp cache
       #atf_check -s not-exit:0 -e ignore rump.ndp -s fc00::10 b2:a0:20:00:00:ff
       #$DEBUG && rump.ndp -n -a

       rump_server_destroy_ifaces
}

get_n_caches()
{

       echo $(rump.ndp -a -n |grep -v -e Neighbor -e permanent |wc -l)
}

ndp_neighborgcthresh_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server no
       setup_src_server

       export RUMP_SERVER=$SOCKDST
       for i in $(seq 0 9); do
               atf_check -s exit:0 rump.ifconfig shmif0 inet6 ${IP6DST}$i
       done

       export RUMP_SERVER=$SOCKSRC

       # ping to 3 destinations
       $DEBUG && rump.ndp -n -a
       for i in $(seq 0 2); do
               atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 \
                   ${IP6DST}$i
       done
       $DEBUG && rump.ndp -n -a

       # 3 caches should be created
       atf_check_equal $(get_n_caches) 3

       # ping to additional 3 destinations
       for i in $(seq 3 5); do
               atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 \
                   ${IP6DST}$i
       done
       $DEBUG && rump.ndp -n -a

       # 6 caches should be created in total
       atf_check_equal $(get_n_caches) 6

       # Limit the number of neighbor caches to 5
       atf_check -s exit:0 -o ignore rump.sysctl -w \
           net.inet6.ip6.neighborgcthresh=5

       # ping to additional 4 destinations
       for i in $(seq 6 9); do
               atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 \
                   ${IP6DST}$i
       done

       # More than 5 caches should be created in total, but exceeded caches
       # should be GC-ed
       if [ "$(get_n_caches)" -gt 5 ]; then
               atf_fail "Neighbor caches are not GC-ed"
       fi

       rump_server_destroy_ifaces
}

make_pkt_str_na()
{
       local ip=$1
       local mac=$2
       local pkt=
       pkt="$mac > 33:33:00:00:00:01, ethertype IPv6 (0x86dd), length 86:"
       pkt="$pkt $ip > ff02::1: ICMP6, neighbor advertisement"
       echo $pkt
}

ndp_link_activation_body()
{
       local linklocal=

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       # flush old packets
       extract_new_packets bus1 > ./out

       export RUMP_SERVER=$SOCKSRC

       atf_check -s exit:0 -o ignore rump.ifconfig shmif0 link \
           b2:a1:00:00:00:01

       atf_check -s exit:0 sleep 1
       extract_new_packets bus1 > ./out
       $DEBUG && cat ./out

       linklocal=$(rump.ifconfig shmif0 |awk '/fe80/ {print $2;}' |awk -F % '{print $1;}')
       $DEBUG && echo $linklocal

       pkt=$(make_pkt_str_na $linklocal b2:a1:00:00:00:01)
       atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"

       atf_check -s exit:0 -o ignore rump.ifconfig shmif0 link \
           b2:a1:00:00:00:02 active

       atf_check -s exit:0 sleep 1
       extract_new_packets bus1 > ./out
       $DEBUG && cat ./out

       linklocal=$(rump.ifconfig shmif0 |awk '/fe80/ {print $2;}' |awk -F % '{print $1;}')
       $DEBUG && echo $linklocal

       pkt=$(make_pkt_str_na $linklocal b2:a1:00:00:00:02)
       atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"

       rump_server_destroy_ifaces
}

ndp_cache_expiration_cleanup()
{
       $DEBUG && dump
       cleanup
}

ndp_commands_cleanup()
{
       $DEBUG && dump
       cleanup
}

ndp_cache_overwriting_cleanup()
{
       $DEBUG && dump
       cleanup
}

ndp_neighborgcthresh_cleanup()
{
       $DEBUG && dump
       cleanup
}

ndp_link_activation_cleanup()
{
       $DEBUG && dump
       cleanup
}

atf_test_case ndp_rtm cleanup
ndp_rtm_head()
{

       atf_set "descr" "Tests for routing messages on operations of NDP entries"
       atf_set "require.progs" "rump_server"
}

ndp_rtm_body()
{
       local macaddr_src= macaddr_dst=
       local file=./tmp
       local pid= hdr= what= addr=

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       macaddr_src=$(get_macaddr $SOCKSRC shmif0)
       macaddr_dst=$(get_macaddr $SOCKDST shmif0)

       export RUMP_SERVER=$SOCKSRC

       # Test ping and a resulting routing message (RTM_ADD)
       rump.route -n monitor -c 1 > $file &
       pid=$!
       sleep 1
       atf_check -s exit:0 -o ignore rump.ping6 -n -X 1 -c 1 $IP6DST
       wait $pid
       $DEBUG && cat $file

       hdr="RTM_ADD.+<UP,HOST,DONE,LLINFO,CLONED>"
       what="<DST,GATEWAY,AUTHOR>"
       addr="$IP6DST $macaddr_dst $IP6DST"
       atf_check -s exit:0 -o match:"$hdr" -o match:"$what" -o match:"$addr" \
               cat $file

       # Test ping and a resulting routing message (RTM_MISS) on subnet
       rump.route -n monitor -c 1 > $file &
       pid=$!
       sleep 1
       atf_check -s exit:1 -o ignore -e ignore \
               rump.ping6 -n -X 1 -c 1 $IP6DST_FAIL1
       wait $pid
       $DEBUG && cat $file

       hdr="RTM_MISS.+<DONE>"
       what="<DST,GATEWAY,AUTHOR>"
       addr="$IP6DST_FAIL1 link#2 $IP6SRC"
       atf_check -s exit:0 -o match:"$hdr" -o match:"$what" -o match:"$addr" \
               cat $file

       # Test ping and a resulting routing message (RTM_MISS) off subnet
       rump.route -n monitor -c 1 > $file &
       pid=$!
       sleep 1
       atf_check -s exit:1 -o ignore -e ignore \
               rump.ping6 -n -X 1 -c 1 $IP6DST_FAIL2
       wait $pid
       $DEBUG && cat $file

       hdr="RTM_MISS.+<DONE>"
       what="<DST>"
       addr="$IP6DST_FAIL2"
       atf_check -s exit:0 -o match:"$hdr" -o match:"$what" -o match:"$addr" \
               cat $file

       # Test ndp -d and resulting routing messages (RTM_DELETE)
       rump.route -n monitor -c 1 > $file &
       pid=$!
       sleep 1
       atf_check -s exit:0 -o ignore rump.ndp -d $IP6DST
       wait $pid
       $DEBUG && cat $file

       hdr="RTM_DELETE.+<HOST,DONE,LLINFO,CLONED>"
       what="<DST,GATEWAY>"
       addr="$IP6DST $macaddr_dst"
       atf_check -s exit:0 -o match:"$hdr" -o match:"$what" -o match:"$addr" \
               grep -A 3 RTM_DELETE $file

       rump_server_destroy_ifaces
}

ndp_rtm_cleanup()
{

       $DEBUG && dump
       cleanup
}

atf_test_case ndp_purge_on_route_change cleanup
ndp_purge_on_route_change_head()
{

       atf_set "descr" "Tests if NDP entries are removed on route change"
       atf_set "require.progs" "rump_server"
}

ndp_purge_on_route_change_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       rump_server_add_iface $SOCKSRC shmif1 bus1
       export RUMP_SERVER=$SOCKSRC
       atf_check -s exit:0 rump.ifconfig shmif1 inet6 fc00:1::1
       atf_check -s exit:0 rump.ifconfig -w 10

       $DEBUG && rump.netstat -nr -f inet6
       atf_check -s exit:0 -o ignore rump.ping6 -n -X 1 -c 1 $IP6DST
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST

       atf_check -s exit:0 -o ignore \
           rump.route change -inet6 -net $IP6NET/64 -ifp shmif1
       $DEBUG && rump.netstat -nr -f inet6
       $DEBUG && rump.ndp -na
       # The entry was already removed on route change
       atf_check -s not-exit:0 -o ignore -e match:'no entry' \
           rump.ndp -n $IP6DST

       rump_server_destroy_ifaces
}

ndp_purge_on_route_change_cleanup()
{

       $DEBUG && dump
       cleanup
}

atf_test_case ndp_purge_on_route_delete cleanup
ndp_purge_on_route_delete_head()
{

       atf_set "descr" "Tests if NDP entries are removed on route delete"
       atf_set "require.progs" "rump_server"
}

ndp_purge_on_route_delete_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       $DEBUG && rump.netstat -nr -f inet6
       atf_check -s exit:0 -o ignore rump.ping6 -n -X 1 -c 1 $IP6DST
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST

       atf_check -s exit:0 -o ignore rump.route delete -inet6 -net $IP6NET/64
       $DEBUG && rump.netstat -nr -f inet6
       $DEBUG && rump.ndp -na

       # The entry was already removed on route delete
       atf_check -s not-exit:0 -o ignore -e match:'no entry' \
           rump.ndp -n $IP6DST

       rump_server_destroy_ifaces
}

ndp_purge_on_route_delete_cleanup()
{

       $DEBUG && dump
       cleanup
}

atf_test_case ndp_purge_on_ifdown cleanup
ndp_purge_on_ifdown_head()
{

       atf_set "descr" "Tests if NDP entries are removed on interface down"
       atf_set "require.progs" "rump_server"
}

ndp_purge_on_ifdown_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       $DEBUG && rump.netstat -nr -f inet6
       atf_check -s exit:0 -o ignore rump.ping6 -n -X 1 -c 1 $IP6DST
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST

       # Shutdown the interface
       atf_check -s exit:0 rump.ifconfig shmif0 down
       $DEBUG && rump.netstat -nr -f inet6
       $DEBUG && rump.ndp -na

       # The entry was already removed on ifconfig down
       atf_check -s not-exit:0 -o ignore -e match:'no entry' \
           rump.ndp -n $IP6DST

       rump_server_destroy_ifaces
}

ndp_purge_on_ifdown_cleanup()
{

       $DEBUG && dump
       cleanup
}

atf_test_case ndp_stray_entries cleanup
ndp_stray_entries_head()
{

       atf_set "descr" "Tests if NDP entries are removed on route change"
       atf_set "require.progs" "rump_server"
}

ndp_stray_entries_body()
{

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       rump_server_add_iface $SOCKSRC shmif1 bus1

       export RUMP_SERVER=$SOCKSRC
       atf_check -s exit:0 rump.ifconfig shmif1 inet6 $IP6SRC2/64
       atf_check -s exit:0 rump.ifconfig -w 10

       $DEBUG && rump.netstat -nr -f inet6
       atf_check -s exit:0 -o ignore rump.ping6 -n -X 1 -c 1 $IP6DST
       $DEBUG && rump.ndp -na
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST
       atf_check -s exit:0 -o not-match:'shmif1' rump.ndp -n $IP6DST

       # Clean up
       atf_check -s exit:0 -o ignore rump.ndp -c
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6DST

       # ping from a different source address
       atf_check -s exit:0 -o ignore \
           rump.ping6 -n -X 1 -c 1 -S $IP6SRC2 $IP6DST
       $DEBUG && rump.ndp -na
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST
       # ARP reply goes back via shmif1, so a cache is created on shmif1
       atf_check -s exit:0 -o match:'shmif1' rump.ndp -n $IP6DST

       # Clean up by ndp -c
       atf_check -s exit:0 -o ignore rump.ndp -c
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6DST

       # ping from a different source address again
       atf_check -s exit:0 -o ignore \
           rump.ping6 -n -X 1 -c 1 -S $IP6SRC2 $IP6DST
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST
       # ARP reply doen't come
       atf_check -s exit:0 -o not-match:'shmif1' rump.ndp -n $IP6DST

       # Cleanup caches on the destination
       export RUMP_SERVER=$SOCKDST
       $DEBUG && rump.ndp -na
       atf_check -s exit:0 -o ignore rump.ndp -c
       $DEBUG && rump.ndp -na
       export RUMP_SERVER=$SOCKSRC

       # ping from a different source address again
       atf_check -s exit:0 -o ignore \
           rump.ping6 -n -X 1 -c 1 -S $IP6SRC2 $IP6DST
       atf_check -s exit:0 -o match:'shmif0' rump.ndp -n $IP6DST
       # ARP reply goes back via shmif1
       atf_check -s exit:0 -o match:'shmif1' rump.ndp -n $IP6DST

       # Clean up by ndp -d <ip>
       atf_check -s exit:0 -o ignore rump.ndp -d $IP6DST
       # Both entries should be deleted
       atf_check -s not-exit:0 -o ignore -e match:'no entry' rump.ndp -n $IP6DST

       rump_server_destroy_ifaces
}

ndp_stray_entries_cleanup()
{

       $DEBUG && dump
       cleanup
}

atf_test_case ndp_cache_state cleanup
ndp_cache_state_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()
{
       local macaddr=

       skip_if_qemu

       rump_server_start $SOCKSRC netinet6
       rump_server_start $SOCKDST netinet6

       setup_dst_server
       setup_src_server

       # 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)
       #
       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
       atf_add_test_case ndp_commands
       atf_add_test_case ndp_cache_overwriting
       atf_add_test_case ndp_neighborgcthresh
       atf_add_test_case ndp_link_activation
       atf_add_test_case ndp_rtm
       atf_add_test_case ndp_purge_on_route_change
       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
}

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.