blob: 7bd2ebb6e9de69ff329ad473e189720c5d2f3596 (
plain) (
blame)
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
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="ping_ipv4"
NUM_NETIFS=6
source lib.sh
h1_create()
{
vrf_create "vrf-h1"
ip link set dev $h1 master vrf-h1
ip link set dev vrf-h1 up
ip link set dev $h1 up
ip address add 192.0.2.2/24 dev $h1
ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
ip route add 198.51.200.0/24 vrf vrf-h1 nexthop via 192.0.2.1
}
h1_destroy()
{
ip route del 198.51.200.0/24 vrf vrf-h1
ip route del 198.51.100.0/24 vrf vrf-h1
ip address del 192.0.2.2/24 dev $h1
ip link set dev $h1 down
vrf_destroy "vrf-h1"
}
h2_create()
{
vrf_create "vrf-h2"
ip link set dev $h2 master vrf-h2
ip link set dev vrf-h2 up
ip link set dev $h2 up
ip address add 198.51.100.2/24 dev $h2
ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
ip route add 198.51.200.0/24 vrf vrf-h2 nexthop via 198.51.100.1
}
h2_destroy()
{
ip route del 198.51.200.0/24 vrf vrf-h2
ip route del 192.0.2.0/24 vrf vrf-h2
ip address del 198.51.100.2/24 dev $h2
ip link set dev $h2 down
vrf_destroy "vrf-h2"
}
h3_create()
{
vrf_create "vrf-h3"
ip link set dev $h3 master vrf-h3
ip link set dev vrf-h3 up
ip link set dev $h3 up
ip address add 198.51.200.2/24 dev $h3
ip route add 192.0.2.0/24 vrf vrf-h3 nexthop via 198.51.200.1
ip route add 198.51.100.0/24 vrf vrf-h3 nexthop via 198.51.200.1
}
h3_destroy()
{
ip route del 198.51.100.0/24 vrf vrf-h3
ip route del 192.0.2.0/24 vrf vrf-h3
ip address del 198.51.200.2/24 dev $h3
ip link set dev $h3 down
vrf_destroy "vrf-h3"
}
router_create()
{
ip link set dev $rp1 up
ip link set dev $rp2 up
ip link set dev $rp3 up
ip address add 192.0.2.1/24 dev $rp1
ip address add 198.51.100.1/24 dev $rp2
ip address add 198.51.200.1/24 dev $rp3
}
router_destroy()
{
ip address del 198.51.200.1/24 dev $rp3
ip address del 198.51.100.1/24 dev $rp2
ip address del 192.0.2.1/24 dev $rp1
ip link set dev $rp3 down
ip link set dev $rp2 down
ip link set dev $rp1 down
}
setup_prepare()
{
h1=${NETIFS[p1]}
rp1=${NETIFS[p2]}
rp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
rp3=${NETIFS[p5]}
h3=${NETIFS[p6]}
vrf_prepare
h1_create
h2_create
h3_create
router_create
forwarding_enable
}
cleanup()
{
pre_cleanup
forwarding_restore
router_destroy
h3_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
bc_forwarding_disable()
{
sysctl_set net.ipv4.conf.all.bc_forwarding 0
sysctl_set net.ipv4.conf.$rp1.bc_forwarding 0
}
bc_forwarding_enable()
{
sysctl_set net.ipv4.conf.all.bc_forwarding 1
sysctl_set net.ipv4.conf.$rp1.bc_forwarding 1
}
bc_forwarding_restore()
{
sysctl_restore net.ipv4.conf.$rp1.bc_forwarding
sysctl_restore net.ipv4.conf.all.bc_forwarding
}
ping_test_from()
{
local oif=$1
local dip=$2
local from=$3
local fail=${4:-0}
RET=0
log_info "ping $dip, expected reply from $from"
ip vrf exec $(master_name_get $oif) \
$PING -I $oif $dip -c 10 -i 0.1 -w 2 -b 2>&1 | grep $from &> /dev/null
check_err_fail $fail $?
}
ping_ipv4()
{
sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0
bc_forwarding_disable
log_info "bc_forwarding disabled on r1 =>"
ping_test_from $h1 198.51.100.255 192.0.2.1
log_test "h1 -> net2: reply from r1 (not forwarding)"
ping_test_from $h1 198.51.200.255 192.0.2.1
log_test "h1 -> net3: reply from r1 (not forwarding)"
ping_test_from $h1 192.0.2.255 192.0.2.1
log_test "h1 -> net1: reply from r1 (not dropping)"
ping_test_from $h1 255.255.255.255 192.0.2.1
log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)"
ping_test_from $h2 192.0.2.255 198.51.100.1
log_test "h2 -> net1: reply from r1 (not forwarding)"
ping_test_from $h2 198.51.200.255 198.51.100.1
log_test "h2 -> net3: reply from r1 (not forwarding)"
ping_test_from $h2 198.51.100.255 198.51.100.1
log_test "h2 -> net2: reply from r1 (not dropping)"
ping_test_from $h2 255.255.255.255 198.51.100.1
log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)"
bc_forwarding_restore
bc_forwarding_enable
log_info "bc_forwarding enabled on r1 =>"
ping_test_from $h1 198.51.100.255 198.51.100.2
log_test "h1 -> net2: reply from h2 (forwarding)"
ping_test_from $h1 198.51.200.255 198.51.200.2
log_test "h1 -> net3: reply from h3 (forwarding)"
ping_test_from $h1 192.0.2.255 192.0.2.1 1
log_test "h1 -> net1: no reply (dropping)"
ping_test_from $h1 255.255.255.255 192.0.2.1
log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)"
ping_test_from $h2 192.0.2.255 192.0.2.2
log_test "h2 -> net1: reply from h1 (forwarding)"
ping_test_from $h2 198.51.200.255 198.51.200.2
log_test "h2 -> net3: reply from h3 (forwarding)"
ping_test_from $h2 198.51.100.255 198.51.100.1 1
log_test "h2 -> net2: no reply (dropping)"
ping_test_from $h2 255.255.255.255 198.51.100.1
log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)"
bc_forwarding_restore
sysctl_restore net.ipv4.icmp_echo_ignore_broadcasts
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
|
