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#!/bin/bash
# NFT_TEST_REQUIRES(NFT_TEST_HAVE_socat)
# regression check for kernel commit
# netfilter: nf_reject: init skb->dev for reset packet
ip link set lo up
$NFT -f - <<EOF
table inet filter {
chain input {
type filter hook input priority filter; policy accept;
meta nftrace set 1
ip daddr 127.0.0.1 tcp dport 5555 reject with tcp reset
ip6 daddr ::1 tcp dport 5555 reject with tcp reset
tcp dport 5555 counter
}
chain output {
type filter hook output priority filter; policy accept;
# empty chain, so nf_hook_slow is called from ip_local_out.
}
}
EOF
[ $? -ne 0 ] && exit 1
socat -u STDIN TCP:127.0.0.1:5555,connect-timeout=2 < /dev/null > /dev/null
socat -u STDIN TCP:[::1]:5555,connect-timeout=2 < /dev/null > /dev/null
$NFT list ruleset |grep -q 'counter packets 0 bytes 0' || exit 1
exit 0
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