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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
NS=ns
IP4=172.16.0.1/24
TGT4=172.16.0.2
IP6=2001:db8:1::1/64
TGT6=2001:db8:1::2
MARK=1000
cleanup()
{
ip netns del $NS
}
trap cleanup EXIT
# Namespaces
ip netns add $NS
# Connectivity
ip -netns $NS link add type dummy
ip -netns $NS link set dev dummy0 up
ip -netns $NS addr add $IP4 dev dummy0
ip -netns $NS addr add $IP6 dev dummy0
ip -netns $NS rule add fwmark $MARK lookup 300
ip -6 -netns $NS rule add fwmark $MARK lookup 300
ip -netns $NS route add prohibit any table 300
ip -6 -netns $NS route add prohibit any table 300
# Test
BAD=0
TOTAL=0
check_result() {
((TOTAL++))
if [ $1 -ne $2 ]; then
echo " Case $3 returned $1, expected $2"
((BAD++))
fi
}
ip netns exec $NS ./cmsg_so_mark $TGT4 1234 $((MARK + 1))
check_result $? 0 "IPv4 pass"
ip netns exec $NS ./cmsg_so_mark $TGT6 1234 $((MARK + 1))
check_result $? 0 "IPv6 pass"
ip netns exec $NS ./cmsg_so_mark $TGT4 1234 $MARK
check_result $? 1 "IPv4 rejection"
ip netns exec $NS ./cmsg_so_mark $TGT6 1234 $MARK
check_result $? 1 "IPv6 rejection"
# Summary
if [ $BAD -ne 0 ]; then
echo "FAIL - $BAD/$TOTAL cases failed"
exit 1
else
echo "OK"
exit 0
fi
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