1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
# $NetBSD: t_dad.sh,v 1.5 2016/08/10 23:07:57 kre 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.
#
inetserver="rump_server -lrumpnet -lrumpnet_net -lrumpnet_netinet"
inetserver="$inetserver -lrumpnet_netinet6 -lrumpnet_shmif"
inetserver="$inetserver -lrumpdev"
HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so RUMPHIJACK=sysctl=yes"
SOCKLOCAL=unix://commsock1
SOCKPEER=unix://commsock2
DEBUG=false
atf_test_case dad_basic cleanup
atf_test_case dad_duplicated cleanup
dad_basic_head()
{
atf_set "descr" "Tests for IPv6 DAD basic behavior"
atf_set "require.progs" "rump_server"
}
dad_duplicated_head()
{
atf_set "descr" "Tests for IPv6 DAD duplicated state"
atf_set "require.progs" "rump_server"
}
setup_server()
{
local sock=$1
local ip=$2
export RUMP_SERVER=$sock
atf_check -s exit:0 rump.ifconfig shmif0 create
atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
atf_check -s exit:0 rump.ifconfig shmif0 inet6 $ip
atf_check -s exit:0 rump.ifconfig shmif0 up
atf_check -s exit:0 rump.ifconfig -w 10
$DEBUG && rump.ifconfig shmif0
}
make_ns_pkt_str()
{
local id=$1
local target=$2
pkt="33:33:ff:00:00:0${id}, ethertype IPv6 (0x86dd), length 78: ::"
pkt="$pkt > ff02::1:ff00:${id}: ICMP6, neighbor solicitation,"
pkt="$pkt who has $target, length 24"
echo $pkt
}
extract_new_packets()
{
local old=./old
if [ ! -f $old ]; then
old=/dev/null
fi
shmif_dumpbus -p - bus1 2>/dev/null| \
tcpdump -n -e -r - 2>/dev/null > ./new
diff -u $old ./new |grep '^+' |cut -d '+' -f 2 > ./diff
mv -f ./new ./old
cat ./diff
}
dad_basic_body()
{
local pkt=
local localip1=fc00::1
local localip2=fc00::2
local localip3=fc00::3
atf_check -s exit:0 ${inetserver} $SOCKLOCAL
export RUMP_SERVER=$SOCKLOCAL
atf_check -s exit:0 rump.ifconfig shmif0 create
atf_check -s exit:0 rump.ifconfig shmif0 linkstr bus1
atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip1
atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip2
$DEBUG && rump.ifconfig shmif0
atf_check -s exit:0 rump.ifconfig shmif0 up
rump.ifconfig shmif0 > ./out
$DEBUG && cat ./out
# The primary address doesn't start with tentative state
atf_check -s not-exit:0 -x "cat ./out |grep $localip1 |grep -q tentative"
# The alias address starts with tentative state
# XXX we have no stable way to check this, so skip for now
#atf_check -s exit:0 -x "cat ./out |grep $localip2 |grep -q tentative"
atf_check -s exit:0 sleep 2
extract_new_packets > ./out
$DEBUG && cat ./out
# Check DAD probe packets (Neighbor Solicitation Message)
pkt=$(make_ns_pkt_str 2 $localip2)
atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
# No DAD for the primary address
pkt=$(make_ns_pkt_str 1 $localip1)
atf_check -s not-exit:0 -x "cat ./out |grep -q '$pkt'"
# Waiting for DAD complete
atf_check -s exit:0 rump.ifconfig -w 10
extract_new_packets > ./out
$DEBUG && cat ./out
# IPv6 DAD doesn't announce (Neighbor Advertisement Message)
# The alias address left tentative
atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip2 |grep -q tentative"
#
# Add a new address on the fly
#
atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip3
# The new address starts with tentative state
# XXX we have no stable way to check this, so skip for now
#atf_check -s exit:0 -x "rump.ifconfig shmif0 |grep $localip3 |grep -q tentative"
# Check DAD probe packets (Neighbor Solicitation Message)
atf_check -s exit:0 sleep 2
extract_new_packets > ./out
$DEBUG && cat ./out
pkt=$(make_ns_pkt_str 3 $localip3)
atf_check -s exit:0 -x "cat ./out |grep -q '$pkt'"
# Waiting for DAD complete
atf_check -s exit:0 rump.ifconfig -w 10
extract_new_packets > ./out
$DEBUG && cat ./out
# IPv6 DAD doesn't announce (Neighbor Advertisement Message)
# The new address left tentative
atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip3 |grep -q tentative"
}
dad_duplicated_body()
{
local localip1=fc00::1
local localip2=fc00::11
local peerip=fc00::2
atf_check -s exit:0 ${inetserver} $SOCKLOCAL
atf_check -s exit:0 ${inetserver} $SOCKPEER
setup_server $SOCKLOCAL $localip1
setup_server $SOCKPEER $peerip
export RUMP_SERVER=$SOCKLOCAL
# The primary address isn't marked as duplicated
atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip1 |grep -q duplicated"
#
# Add a new address duplicated with the peer server
#
atf_check -s exit:0 rump.ifconfig shmif0 inet6 $peerip
atf_check -s exit:0 sleep 1
# The new address is marked as duplicated
atf_check -s exit:0 -x "rump.ifconfig shmif0 |grep $peerip |grep -q duplicated"
# A unique address isn't marked as duplicated
atf_check -s exit:0 rump.ifconfig shmif0 inet6 $localip2
atf_check -s exit:0 sleep 1
atf_check -s not-exit:0 -x "rump.ifconfig shmif0 |grep $localip2 |grep -q duplicated"
}
cleanup()
{
gdb -ex bt /usr/bin/rump_server rump_server.core
gdb -ex bt /usr/sbin/arp arp.core
env RUMP_SERVER=$SOCKLOCAL rump.halt
env RUMP_SERVER=$SOCKPEER rump.halt
}
dump_local()
{
export RUMP_SERVER=$SOCKLOCAL
rump.netstat -nr
rump.arp -n -a
rump.ifconfig
$HIJACKING dmesg
}
dump_peer()
{
export RUMP_SERVER=$SOCKPEER
rump.netstat -nr
rump.arp -n -a
rump.ifconfig
$HIJACKING dmesg
}
dump()
{
dump_local
dump_peer
shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
}
dad_basic_cleanup()
{
$DEBUG && dump_local
$DEBUG && shmif_dumpbus -p - bus1 2>/dev/null| tcpdump -n -e -r -
env RUMP_SERVER=$SOCKLOCAL rump.halt
}
dad_duplicated_cleanup()
{
$DEBUG && dump
cleanup
}
atf_init_test_cases()
{
atf_add_test_case dad_basic
atf_add_test_case dad_duplicated
}
|