tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4NS=ns
5IP4=172.16.0.1/24
6TGT4=172.16.0.2
7IP6=2001:db8:1::1/64
8TGT6=2001:db8:1::2
9MARK=1000
10
11cleanup()
12{
13 ip netns del $NS
14}
15
16trap cleanup EXIT
17
18# Namespaces
19ip netns add $NS
20
21ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
22
23# Connectivity
24ip -netns $NS link add type dummy
25ip -netns $NS link set dev dummy0 up
26ip -netns $NS addr add $IP4 dev dummy0
27ip -netns $NS addr add $IP6 dev dummy0
28
29ip -netns $NS rule add fwmark $MARK lookup 300
30ip -6 -netns $NS rule add fwmark $MARK lookup 300
31ip -netns $NS route add prohibit any table 300
32ip -6 -netns $NS route add prohibit any table 300
33
34# Test
35BAD=0
36TOTAL=0
37
38check_result() {
39 ((TOTAL++))
40 if [ $1 -ne $2 ]; then
41 echo " Case $3 returned $1, expected $2"
42 ((BAD++))
43 fi
44}
45
46for ovr in setsock cmsg both; do
47 for i in 4 6; do
48 [ $i == 4 ] && TGT=$TGT4 || TGT=$TGT6
49
50 for p in u i r; do
51 [ $p == "u" ] && prot=UDP
52 [ $p == "i" ] && prot=ICMP
53 [ $p == "r" ] && prot=RAW
54
55 [ $ovr == "setsock" ] && m="-M"
56 [ $ovr == "cmsg" ] && m="-m"
57 [ $ovr == "both" ] && m="-M $MARK -m"
58
59 ip netns exec $NS ./cmsg_sender -$i -p $p $m $((MARK + 1)) $TGT 1234
60 check_result $? 0 "$prot $ovr - pass"
61
62 [ $ovr == "diff" ] && m="-M $((MARK + 1)) -m"
63
64 ip netns exec $NS ./cmsg_sender -$i -p $p $m $MARK -s $TGT 1234
65 check_result $? 1 "$prot $ovr - rejection"
66 done
67 done
68done
69
70# Summary
71if [ $BAD -ne 0 ]; then
72 echo "FAIL - $BAD/$TOTAL cases failed"
73 exit 1
74else
75 echo "OK"
76 exit 0
77fi