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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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selftests: netfilter: nft_nat_zones.sh: shellcheck cleanups
While at it: No need for iperf here, use socat. This also reduces the script runtime. Signed-off-by: Florian Westphal <fw@strlen.de> Link: https://lore.kernel.org/r/20240418152744.15105-8-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Florian Westphal
committed by
Jakub Kicinski
Jakub Kicinski
parent
c0f9a2b705
commit
d6905f088d
@@ -3,15 +3,14 @@
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# Test connection tracking zone and NAT source port reallocation support.
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#
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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source lib.sh
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# Don't increase too much, 2000 clients should work
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# just fine but script can then take several minutes with
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# KASAN/debug builds.
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maxclients=100
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have_iperf=1
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have_socat=0
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ret=0
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# client1---.
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@@ -31,12 +30,6 @@ ret=0
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# NAT Gateway is supposed to do port reallocation for each of the
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# connections.
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sfx=$(mktemp -u "XXXXXXXX")
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gw="ns-gw-$sfx"
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cl1="ns-cl1-$sfx"
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cl2="ns-cl2-$sfx"
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srv="ns-srv-$sfx"
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v4gc1=$(sysctl -n net.ipv4.neigh.default.gc_thresh1 2>/dev/null)
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v4gc2=$(sysctl -n net.ipv4.neigh.default.gc_thresh2 2>/dev/null)
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v4gc3=$(sysctl -n net.ipv4.neigh.default.gc_thresh3 2>/dev/null)
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@@ -46,61 +39,29 @@ v6gc3=$(sysctl -n net.ipv6.neigh.default.gc_thresh3 2>/dev/null)
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cleanup()
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{
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ip netns del $gw
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ip netns del $srv
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for i in $(seq 1 $maxclients); do
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ip netns del ns-cl$i-$sfx 2>/dev/null
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done
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cleanup_all_ns
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sysctl -q net.ipv4.neigh.default.gc_thresh1=$v4gc1 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh2=$v4gc2 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh3=$v4gc3 2>/dev/null
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sysctl -q net.ipv6.neigh.default.gc_thresh1=$v6gc1 2>/dev/null
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sysctl -q net.ipv6.neigh.default.gc_thresh2=$v6gc2 2>/dev/null
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sysctl -q net.ipv6.neigh.default.gc_thresh3=$v6gc3 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh1="$v4gc1" 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh2="$v4gc2" 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh3="$v4gc3" 2>/dev/null
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sysctl -q net.ipv6.neigh.default.gc_thresh1="$v6gc1" 2>/dev/null
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sysctl -q net.ipv6.neigh.default.gc_thresh2="$v6gc2" 2>/dev/null
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sysctl -q net.ipv6.neigh.default.gc_thresh3="$v6gc3" 2>/dev/null
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}
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nft --version > /dev/null 2>&1
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if [ $? -ne 0 ];then
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echo "SKIP: Could not run test without nft tool"
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exit $ksft_skip
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checktool "nft --version" echo "run test without nft tool"
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checktool "conntrack -V" "run test without conntrack tool"
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if socat -h >/dev/null 2>&1; then
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have_socat=1
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fi
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ip -Version > /dev/null 2>&1
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if [ $? -ne 0 ];then
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echo "SKIP: Could not run test without ip tool"
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exit $ksft_skip
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fi
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conntrack -V > /dev/null 2>&1
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if [ $? -ne 0 ];then
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echo "SKIP: Could not run test without conntrack tool"
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exit $ksft_skip
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fi
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iperf3 -v >/dev/null 2>&1
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if [ $? -ne 0 ];then
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have_iperf=0
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fi
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ip netns add "$gw"
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if [ $? -ne 0 ];then
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echo "SKIP: Could not create net namespace $gw"
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exit $ksft_skip
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fi
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ip -net "$gw" link set lo up
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setup_ns gw srv
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trap cleanup EXIT
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ip netns add "$srv"
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if [ $? -ne 0 ];then
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echo "SKIP: Could not create server netns $srv"
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exit $ksft_skip
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fi
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ip link add veth0 netns "$gw" type veth peer name eth0 netns "$srv"
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ip -net "$gw" link set veth0 up
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ip -net "$srv" link set lo up
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ip -net "$srv" link set eth0 up
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sysctl -q net.ipv6.neigh.default.gc_thresh1=512 2>/dev/null
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@@ -110,55 +71,49 @@ sysctl -q net.ipv4.neigh.default.gc_thresh1=512 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh2=1024 2>/dev/null
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sysctl -q net.ipv4.neigh.default.gc_thresh3=4096 2>/dev/null
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for i in $(seq 1 $maxclients);do
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cl="ns-cl$i-$sfx"
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for i in $(seq 1 "$maxclients");do
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setup_ns "cl$i"
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ip netns add "$cl"
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if [ $? -ne 0 ];then
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echo "SKIP: Could not create client netns $cl"
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exit $ksft_skip
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fi
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ip link add veth$i netns "$gw" type veth peer name eth0 netns "$cl" > /dev/null 2>&1
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if [ $? -ne 0 ];then
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cl=$(eval echo \$cl"$i")
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if ! ip link add veth"$i" netns "$gw" type veth peer name eth0 netns "$cl" > /dev/null 2>&1;then
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echo "SKIP: No virtual ethernet pair device support in kernel"
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exit $ksft_skip
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fi
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done
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for i in $(seq 1 $maxclients);do
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cl="ns-cl$i-$sfx"
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echo netns exec "$cl" ip link set lo up
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for i in $(seq 1 "$maxclients");do
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cl=$(eval echo \$cl"$i")
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echo netns exec "$cl" ip link set eth0 up
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echo netns exec "$cl" sysctl -q net.ipv4.tcp_syn_retries=2
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echo netns exec "$gw" ip link set veth$i up
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echo netns exec "$gw" sysctl -q net.ipv4.conf.veth$i.arp_ignore=2
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echo netns exec "$gw" sysctl -q net.ipv4.conf.veth$i.rp_filter=0
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echo netns exec "$gw" ip link set "veth$i" up
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echo netns exec "$gw" sysctl -q net.ipv4.conf.veth"$i".arp_ignore=2
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echo netns exec "$gw" sysctl -q net.ipv4.conf.veth"$i".rp_filter=0
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# clients have same IP addresses.
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echo netns exec "$cl" ip addr add 10.1.0.3/24 dev eth0
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echo netns exec "$cl" ip addr add dead:1::3/64 dev eth0
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echo netns exec "$cl" ip addr add dead:1::3/64 dev eth0 nodad
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echo netns exec "$cl" ip route add default via 10.1.0.2 dev eth0
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echo netns exec "$cl" ip route add default via dead:1::2 dev eth0
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# NB: same addresses on client-facing interfaces.
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echo netns exec "$gw" ip addr add 10.1.0.2/24 dev veth$i
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echo netns exec "$gw" ip addr add dead:1::2/64 dev veth$i
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echo netns exec "$gw" ip addr add 10.1.0.2/24 dev "veth$i"
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echo netns exec "$gw" ip addr add dead:1::2/64 dev "veth$i" nodad
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# gw: policy routing
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echo netns exec "$gw" ip route add 10.1.0.0/24 dev veth$i table $((1000+i))
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echo netns exec "$gw" ip route add dead:1::0/64 dev veth$i table $((1000+i))
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echo netns exec "$gw" ip route add 10.1.0.0/24 dev "veth$i" table $((1000+i))
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echo netns exec "$gw" ip route add dead:1::0/64 dev "veth$i" table $((1000+i))
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echo netns exec "$gw" ip route add 10.3.0.0/24 dev veth0 table $((1000+i))
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echo netns exec "$gw" ip route add dead:3::0/64 dev veth0 table $((1000+i))
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echo netns exec "$gw" ip rule add fwmark $i lookup $((1000+i))
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echo netns exec "$gw" ip rule add fwmark "$i" lookup $((1000+i))
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done | ip -batch /dev/stdin
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ip -net "$gw" addr add 10.3.0.1/24 dev veth0
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ip -net "$gw" addr add dead:3::1/64 dev veth0
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ip -net "$gw" addr add dead:3::1/64 dev veth0 nodad
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ip -net "$srv" addr add 10.3.0.99/24 dev eth0
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ip -net "$srv" addr add dead:3::99/64 dev eth0
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ip -net "$srv" addr add dead:3::99/64 dev eth0 nodad
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ip netns exec $gw nft -f /dev/stdin<<EOF
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ip netns exec "$gw" nft -f /dev/stdin<<EOF
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table inet raw {
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map iiftomark {
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type ifname : mark
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@@ -203,18 +158,22 @@ table inet raw {
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}
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}
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EOF
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if [ "$?" -ne 0 ];then
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echo "SKIP: Could not add nftables rules"
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exit $ksft_skip
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fi
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( echo add element inet raw iiftomark \{
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for i in $(seq 1 $((maxclients-1))); do
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echo \"veth$i\" : $i,
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echo \"veth"$i"\" : "$i",
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done
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echo \"veth$maxclients\" : $maxclients \}
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echo \"veth"$maxclients"\" : "$maxclients" \}
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echo add element inet raw iiftozone \{
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for i in $(seq 1 $((maxclients-1))); do
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echo \"veth$i\" : $i,
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echo \"veth"$i"\" : "$i",
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done
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echo \"veth$maxclients\" : $maxclients \}
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) | ip netns exec $gw nft -f /dev/stdin
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) | ip netns exec "$gw" nft -f /dev/stdin
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ip netns exec "$gw" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
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ip netns exec "$gw" sysctl -q net.ipv6.conf.all.forwarding=1 > /dev/null
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@@ -224,73 +183,72 @@ ip netns exec "$gw" sysctl -q net.ipv4.conf.all.rp_filter=0 >/dev/null
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ip netns exec "$gw" sysctl -q net.ipv4.fwmark_reflect=1 > /dev/null
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ip netns exec "$gw" sysctl -q net.ipv6.fwmark_reflect=1 > /dev/null
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for i in $(seq 1 $maxclients); do
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cl="ns-cl$i-$sfx"
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ip netns exec $cl ping -i 0.5 -q -c 3 10.3.0.99 > /dev/null 2>&1 &
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if [ $? -ne 0 ]; then
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echo FAIL: Ping failure from $cl 1>&2
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ret=1
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break
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fi
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for i in $(seq 1 "$maxclients"); do
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cl=$(eval echo \$cl"$i")
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ip netns exec "$cl" ping -i 0.5 -q -c 3 10.3.0.99 > /dev/null 2>&1 &
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done
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wait
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wait || ret=1
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for i in $(seq 1 $maxclients); do
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ip netns exec $gw nft get element inet raw inicmp "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 }" | grep -q "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 counter packets 3 bytes 252 }"
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if [ $? -ne 0 ];then
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[ "$ret" -ne 0 ] && "FAIL: Ping failure from $cl" 1>&2
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for i in $(seq 1 "$maxclients"); do
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if ! ip netns exec "$gw" nft get element inet raw inicmp "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 }" | grep -q "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 counter packets 3 bytes 252 }"; then
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ret=1
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echo "FAIL: counter icmp mismatch for veth$i" 1>&2
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ip netns exec $gw nft get element inet raw inicmp "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 }" 1>&2
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ip netns exec "$gw" nft get element inet raw inicmp "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 }" 1>&2
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break
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fi
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done
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ip netns exec $gw nft get element inet raw inicmp "{ 10.3.0.99 . \"veth0\" . 10.3.0.1 }" | grep -q "{ 10.3.0.99 . \"veth0\" . 10.3.0.1 counter packets $((3 * $maxclients)) bytes $((252 * $maxclients)) }"
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if [ $? -ne 0 ];then
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if ! ip netns exec "$gw" nft get element inet raw inicmp "{ 10.3.0.99 . \"veth0\" . 10.3.0.1 }" | grep -q "{ 10.3.0.99 . \"veth0\" . 10.3.0.1 counter packets $((3 * maxclients)) bytes $((252 * maxclients)) }"; then
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ret=1
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echo "FAIL: counter icmp mismatch for veth0: { 10.3.0.99 . \"veth0\" . 10.3.0.1 counter packets $((3 * $maxclients)) bytes $((252 * $maxclients)) }"
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ip netns exec $gw nft get element inet raw inicmp "{ 10.3.99 . \"veth0\" . 10.3.0.1 }" 1>&2
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echo "FAIL: counter icmp mismatch for veth0: { 10.3.0.99 . \"veth0\" . 10.3.0.1 counter packets $((3 * maxclients)) bytes $((252 * maxclients)) }"
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ip netns exec "$gw" nft get element inet raw inicmp "{ 10.3.99 . \"veth0\" . 10.3.0.1 }" 1>&2
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fi
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if [ $ret -eq 0 ]; then
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if [ $ret -eq 0 ]; then
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echo "PASS: ping test from all $maxclients namespaces"
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fi
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if [ $have_iperf -eq 0 ];then
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echo "SKIP: iperf3 not installed"
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if [ $have_socat -eq 0 ];then
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echo "SKIP: socat not installed"
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if [ $ret -ne 0 ];then
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exit $ret
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fi
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exit $ksft_skip
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fi
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ip netns exec $srv iperf3 -s > /dev/null 2>&1 &
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iperfpid=$!
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sleep 1
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listener_ready()
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{
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ss -N "$1" -lnt -o "sport = :5201" | grep -q 5201
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}
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for i in $(seq 1 $maxclients); do
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ip netns exec "$srv" socat -u TCP-LISTEN:5201,fork STDOUT > /dev/null 2>/dev/null &
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socatpid=$!
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busywait 1000 listener_ready "$srv"
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for i in $(seq 1 "$maxclients"); do
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if [ $ret -ne 0 ]; then
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break
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fi
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cl="ns-cl$i-$sfx"
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ip netns exec $cl iperf3 -c 10.3.0.99 --cport 10000 -n 1 > /dev/null
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if [ $? -ne 0 ]; then
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echo FAIL: Failure to connect for $cl 1>&2
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ip netns exec $gw conntrack -S 1>&2
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cl=$(eval echo \$cl"$i")
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if ! ip netns exec "$cl" socat -4 -u STDIN TCP:10.3.0.99:5201,sourceport=10000 < /dev/null > /dev/null; then
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echo "FAIL: Failure to connect for $cl" 1>&2
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ip netns exec "$gw" conntrack -S 1>&2
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ret=1
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fi
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done
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if [ $ret -eq 0 ];then
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echo "PASS: iperf3 connections for all $maxclients net namespaces"
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echo "PASS: socat connections for all $maxclients net namespaces"
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fi
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kill $iperfpid
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kill $socatpid
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wait
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for i in $(seq 1 $maxclients); do
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ip netns exec $gw nft get element inet raw inflows "{ 10.1.0.3 . 10000 . \"veth$i\" . 10.3.0.99 . 5201 }" > /dev/null
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if [ $? -ne 0 ];then
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for i in $(seq 1 "$maxclients"); do
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if ! ip netns exec "$gw" nft get element inet raw inflows "{ 10.1.0.3 . 10000 . \"veth$i\" . 10.3.0.99 . 5201 }" > /dev/null;then
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ret=1
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echo "FAIL: can't find expected tcp entry for veth$i" 1>&2
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break
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@@ -300,8 +258,7 @@ if [ $ret -eq 0 ];then
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echo "PASS: Found client connection for all $maxclients net namespaces"
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fi
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ip netns exec $gw nft get element inet raw inflows "{ 10.3.0.99 . 5201 . \"veth0\" . 10.3.0.1 . 10000 }" > /dev/null
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if [ $? -ne 0 ];then
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if ! ip netns exec "$gw" nft get element inet raw inflows "{ 10.3.0.99 . 5201 . \"veth0\" . 10.3.0.1 . 10000 }" > /dev/null;then
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ret=1
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echo "FAIL: cannot find return entry on veth0" 1>&2
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fi
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