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|
#!/bin/bash
# test a kernel netns loading a simple ruleset
IP=$(which ip)
if [ ! -x "$IP" ] ; then
echo "E: no ip binary" >&2
exit 1
fi
RULESET="table ip t {
set s {
type ipv4_addr
elements = { 1.1.0.0 }
}
chain c {
ct state new
udp dport 12345
ip saddr @s drop
jump other
}
chain other {
}
}
table ip6 t {
set s {
type ipv6_addr
elements = { fe00::1 }
}
chain c {
ct state new
udp dport 12345
ip6 saddr @s drop
jump other
}
chain other {
}
}
table inet t {
set s {
type ipv6_addr
elements = { fe00::1 }
}
chain c {
ct state new
udp dport 12345
ip6 saddr @s drop
jump other
}
chain other {
}
}
table bridge t {
chain c {
jump other
}
chain other {
accept
}
}
table arp t {
chain c {
jump other
}
chain other {
accept
}
}"
# netns
NETNS_NAME=$(basename "$0")
$IP netns add $NETNS_NAME
if [ $? -ne 0 ] ; then
echo "E: unable to create netns" >&2
exit 1
fi
$IP netns exec $NETNS_NAME $NFT -f - <<< "$RULESET"
if [ $? -ne 0 ] ; then
echo "E: unable to load ruleset in netns" >&2
$IP netns del $NETNS_NAME
exit 1
fi
KERNEL_RULESET="$($IP netns exec $NETNS_NAME $NFT list ruleset)"
$IP netns del $NETNS_NAME
if [ "$RULESET" != "$KERNEL_RULESET" ] ; then
DIFF="$(which diff)"
[ -x $DIFF ] && $DIFF -u <(echo "$RULESET") <(echo "$KERNEL_RULESET")
exit 1
fi
exit 0
|
