blob: 8bc23fb4c82b71c88c6a0f292e8735b831a5d03f (
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
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
source lib.sh
IP6=2001:db8:1::1/64
TGT6=2001:db8:1::2
TMPF=$(mktemp --suffix ".pcap")
cleanup()
{
rm -f $TMPF
cleanup_ns $NS
}
trap cleanup EXIT
tcpdump -h | grep immediate-mode >> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP - tcpdump with --immediate-mode option required"
exit $ksft_skip
fi
# Namespaces
setup_ns NS
NSEXE="ip netns exec $NS"
$NSEXE sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
# Connectivity
ip -netns $NS link add type dummy
ip -netns $NS link set dev dummy0 up
ip -netns $NS addr add $IP6 dev dummy0
# Test
BAD=0
TOTAL=0
check_result() {
((TOTAL++))
if [ $1 -ne $2 ]; then
echo " Case $3 returned $1, expected $2"
((BAD++))
fi
}
# IPV6_DONTFRAG
for ovr in setsock cmsg both diff; do
for df in 0 1; do
for p in u i r; do
[ $p == "u" ] && prot=UDP
[ $p == "i" ] && prot=ICMP
[ $p == "r" ] && prot=RAW
[ $ovr == "setsock" ] && m="-F $df"
[ $ovr == "cmsg" ] && m="-f $df"
[ $ovr == "both" ] && m="-F $df -f $df"
[ $ovr == "diff" ] && m="-F $((1 - df)) -f $df"
$NSEXE ./cmsg_sender -s -S 2000 -6 -p $p $m $TGT6 1234
check_result $? $df "DONTFRAG $prot $ovr"
done
done
done
# IPV6_TCLASS
TOS=0x10
TOS2=0x20
ip -6 -netns $NS rule add tos $TOS lookup 300
ip -6 -netns $NS route add table 300 prohibit any
for ovr in setsock cmsg both diff; do
for p in u i r; do
[ $p == "u" ] && prot=UDP
[ $p == "i" ] && prot=ICMP
[ $p == "r" ] && prot=RAW
[ $ovr == "setsock" ] && m="-C"
[ $ovr == "cmsg" ] && m="-c"
[ $ovr == "both" ] && m="-C $((TOS2)) -c"
[ $ovr == "diff" ] && m="-C $((TOS )) -c"
$NSEXE nohup tcpdump --immediate-mode -p -ni dummy0 -w $TMPF -c 4 2> /dev/null &
BG=$!
sleep 0.05
$NSEXE ./cmsg_sender -6 -p $p $m $((TOS2)) $TGT6 1234
check_result $? 0 "TCLASS $prot $ovr - pass"
while [ -d /proc/$BG ]; do
$NSEXE ./cmsg_sender -6 -p $p $m $((TOS2)) $TGT6 1234
done
tcpdump -r $TMPF -v 2>&1 | grep "class $TOS2" >> /dev/null
check_result $? 0 "TCLASS $prot $ovr - packet data"
rm $TMPF
[ $ovr == "both" ] && m="-C $((TOS )) -c"
[ $ovr == "diff" ] && m="-C $((TOS2)) -c"
$NSEXE ./cmsg_sender -6 -p $p $m $((TOS)) -s $TGT6 1234
check_result $? 1 "TCLASS $prot $ovr - rejection"
done
done
# IPV6_HOPLIMIT
LIM=4
for ovr in setsock cmsg both diff; do
for p in u i r; do
[ $p == "u" ] && prot=UDP
[ $p == "i" ] && prot=ICMP
[ $p == "r" ] && prot=RAW
[ $ovr == "setsock" ] && m="-L"
[ $ovr == "cmsg" ] && m="-l"
[ $ovr == "both" ] && m="-L $LIM -l"
[ $ovr == "diff" ] && m="-L $((LIM + 1)) -l"
$NSEXE nohup tcpdump --immediate-mode -p -ni dummy0 -w $TMPF -c 4 2> /dev/null &
BG=$!
sleep 0.05
$NSEXE ./cmsg_sender -6 -p $p $m $LIM $TGT6 1234
check_result $? 0 "HOPLIMIT $prot $ovr - pass"
while [ -d /proc/$BG ]; do
$NSEXE ./cmsg_sender -6 -p $p $m $LIM $TGT6 1234
done
tcpdump -r $TMPF -v 2>&1 | grep "hlim $LIM[^0-9]" >> /dev/null
check_result $? 0 "HOPLIMIT $prot $ovr - packet data"
rm $TMPF
done
done
# IPV6 exthdr
for p in u i r; do
# Very basic "does it crash" test
for h in h d r; do
$NSEXE ./cmsg_sender -p $p -6 -H $h $TGT6 1234
check_result $? 0 "ExtHdr $prot $ovr - pass"
done
done
# Summary
if [ $BAD -ne 0 ]; then
echo "FAIL - $BAD/$TOTAL cases failed"
exit 1
else
echo "OK"
exit 0
fi
|
