blob: aed62d9e6c0a46488e303954a6a7ff515f0bfe5e (
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
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
source ../../../net/net_helper.sh
NSIM_DEV_1_ID=$((256 + RANDOM % 256))
NSIM_DEV_1_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_DEV_1_ID
NSIM_DEV_2_ID=$((512 + RANDOM % 256))
NSIM_DEV_2_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_DEV_2_ID
NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device
NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device
NSIM_DEV_SYS_LINK=/sys/bus/netdevsim/link_device
NSIM_DEV_SYS_UNLINK=/sys/bus/netdevsim/unlink_device
socat_check()
{
if [ ! -x "$(command -v socat)" ]; then
echo "socat command not found. Skipping test"
return 1
fi
return 0
}
setup_ns()
{
set -e
ip netns add nssv
ip netns add nscl
NSIM_DEV_1_NAME=$(find $NSIM_DEV_1_SYS/net -maxdepth 1 -type d ! \
-path $NSIM_DEV_1_SYS/net -exec basename {} \;)
NSIM_DEV_2_NAME=$(find $NSIM_DEV_2_SYS/net -maxdepth 1 -type d ! \
-path $NSIM_DEV_2_SYS/net -exec basename {} \;)
ip link set $NSIM_DEV_1_NAME netns nssv
ip link set $NSIM_DEV_2_NAME netns nscl
ip netns exec nssv ip addr add '192.168.1.1/24' dev $NSIM_DEV_1_NAME
ip netns exec nscl ip addr add '192.168.1.2/24' dev $NSIM_DEV_2_NAME
ip netns exec nssv ip link set dev $NSIM_DEV_1_NAME up
ip netns exec nscl ip link set dev $NSIM_DEV_2_NAME up
set +e
}
cleanup_ns()
{
ip netns del nscl
ip netns del nssv
}
###
### Code start
###
socat_check || exit 4
modprobe netdevsim
# linking
echo $NSIM_DEV_1_ID > $NSIM_DEV_SYS_NEW
echo $NSIM_DEV_2_ID > $NSIM_DEV_SYS_NEW
udevadm settle
setup_ns
NSIM_DEV_1_FD=$((256 + RANDOM % 256))
exec {NSIM_DEV_1_FD}</var/run/netns/nssv
NSIM_DEV_1_IFIDX=$(ip netns exec nssv cat /sys/class/net/$NSIM_DEV_1_NAME/ifindex)
NSIM_DEV_2_FD=$((256 + RANDOM % 256))
exec {NSIM_DEV_2_FD}</var/run/netns/nscl
NSIM_DEV_2_IFIDX=$(ip netns exec nscl cat /sys/class/net/$NSIM_DEV_2_NAME/ifindex)
echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:2000" > $NSIM_DEV_SYS_LINK 2>/dev/null
if [ $? -eq 0 ]; then
echo "linking with non-existent netdevsim should fail"
cleanup_ns
exit 1
fi
echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX 2000:$NSIM_DEV_2_IFIDX" > $NSIM_DEV_SYS_LINK 2>/dev/null
if [ $? -eq 0 ]; then
echo "linking with non-existent netnsid should fail"
cleanup_ns
exit 1
fi
echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > $NSIM_DEV_SYS_LINK 2>/dev/null
if [ $? -eq 0 ]; then
echo "linking with self should fail"
cleanup_ns
exit 1
fi
echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:$NSIM_DEV_2_IFIDX" > $NSIM_DEV_SYS_LINK
if [ $? -ne 0 ]; then
echo "linking netdevsim1 with netdevsim2 should succeed"
cleanup_ns
exit 1
fi
# argument error checking
echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:a" > $NSIM_DEV_SYS_LINK 2>/dev/null
if [ $? -eq 0 ]; then
echo "invalid arg should fail"
cleanup_ns
exit 1
fi
# send/recv packets
tmp_file=$(mktemp)
ip netns exec nssv socat TCP-LISTEN:1234,fork $tmp_file &
pid=$!
res=0
wait_local_port_listen nssv 1234 tcp
echo "HI" | ip netns exec nscl socat STDIN TCP:192.168.1.1:1234
count=$(cat $tmp_file | wc -c)
if [[ $count -ne 3 ]]; then
echo "expected 3 bytes, got $count"
res=1
fi
echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > $NSIM_DEV_SYS_UNLINK
echo $NSIM_DEV_2_ID > $NSIM_DEV_SYS_DEL
kill $pid
echo $NSIM_DEV_1_ID > $NSIM_DEV_SYS_DEL
cleanup_ns
modprobe -r netdevsim
exit $res
|
