1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # Regression tests for the SO_TXTIME interface
5
6 set -e
7
8 readonly ksft_skip=4
9 readonly DEV="veth0"
10 readonly BIN="./so_txtime"
11
12 readonly RAND="$(mktemp -u XXXXXX)"
13 readonly NSPREFIX="ns-${RAND}"
14 readonly NS1="${NSPREFIX}1"
15 readonly NS2="${NSPREFIX}2"
16
17 readonly SADDR4='192.168.1.1'
18 readonly DADDR4='192.168.1.2'
19 readonly SADDR6='fd::1'
20 readonly DADDR6='fd::2'
21
22 cleanup() {
23 ip netns del "${NS2}"
24 ip netns del "${NS1}"
25 }
26
27 trap cleanup EXIT
28
29 # Create virtual ethernet pair between network namespaces
30 ip netns add "${NS1}"
31 ip netns add "${NS2}"
32
33 ip link add "${DEV}" netns "${NS1}" type veth \
34 peer name "${DEV}" netns "${NS2}"
35
36 # Bring the devices up
37 ip -netns "${NS1}" link set "${DEV}" up
38 ip -netns "${NS2}" link set "${DEV}" up
39
40 # Set fixed MAC addresses on the devices
41 ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
42 ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
43
44 # Add fixed IP addresses to the devices
45 ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}"
46 ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}"
47 ip -netns "${NS1}" addr add fd::1/64 dev "${DEV}" nodad
48 ip -netns "${NS2}" addr add fd::2/64 dev "${DEV}" nodad
49
50 run_test() {
51 local readonly IP="$1"
52 local readonly CLOCK="$2"
53 local readonly TXARGS="$3"
54 local readonly RXARGS="$4"
55
56 if [[ "${IP}" == "4" ]]; then
57 local readonly SADDR="${SADDR4}"
58 local readonly DADDR="${DADDR4}"
59 elif [[ "${IP}" == "6" ]]; then
60 local readonly SADDR="${SADDR6}"
61 local readonly DADDR="${DADDR6}"
62 else
63 echo "Invalid IP version ${IP}"
64 exit 1
65 fi
66
67 local readonly START="$(date +%s%N --date="+ 0.1 seconds")"
68
69 ip netns exec "${NS2}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${RXARGS}" -r &
70 ip netns exec "${NS1}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${TXARGS}"
71 wait "$!"
72 }
73
74 do_test() {
75 run_test $@
76 [ $? -ne 0 ] && ret=1
77 }
78
79 do_fail_test() {
80 run_test $@
81 [ $? -eq 0 ] && ret=1
82 }
83
84 ip netns exec "${NS1}" tc qdisc add dev "${DEV}" root fq
85 set +e
86 ret=0
87 do_test 4 mono a,-1 a,-1
88 do_test 6 mono a,0 a,0
89 do_test 6 mono a,10 a,10
90 do_test 4 mono a,10,b,20 a,10,b,20
91 do_test 6 mono a,20,b,10 b,20,a,20
92
93 if ip netns exec "${NS1}" tc qdisc replace dev "${DEV}" root etf clockid CLOCK_TAI delta 400000; then
94 do_fail_test 4 tai a,-1 a,-1
95 do_fail_test 6 tai a,0 a,0
96 do_test 6 tai a,10 a,10
97 do_test 4 tai a,10,b,20 a,10,b,20
98 do_test 6 tai a,20,b,10 b,10,a,20
99 else
100 echo "tc ($(tc -V)) does not support qdisc etf. skipping"
101 [ $ret -eq 0 ] && ret=$ksft_skip
102 fi
103
104 if [ $ret -eq 0 ]; then
105 echo OK. All tests passed
106 elif [[ $ret -ne $ksft_skip && -n "$KSFT_MACHINE_SLOW" ]]; then
107 echo "Ignoring errors due to slow environment" 1>&2
108 ret=0
109 fi
110 exit $ret
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